[   58.536670][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[   58.537239][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[   58.537239][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[   58.537239][   T73]      ip6_validate_gw+0x3f7/0x7b0
[   58.537239][   T73]      fib6_nh_init+0xa22/0x1580
[   58.537239][   T73]      ip6_route_info_create+0xf18/0x17d0
[   58.537239][   T73]      ip6_route_add+0x1c/0x140
[   58.537239][   T73]      inet6_rtm_newroute+0x104/0x110
[   58.537239][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   58.537239][   T73]      netlink_rcv_skb+0x130/0x360
[   58.537239][   T73]      netlink_unicast+0x449/0x710
[   58.537239][   T73]      netlink_sendmsg+0x723/0xbe0
[   58.537239][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   58.537239][   T73]      ___sys_sendmsg+0xee/0x170
[   58.537239][   T73]      __sys_sendmsg+0xcd/0x170
[   58.537239][   T73]      do_syscall_64+0xc6/0x1e0
[   58.537239][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   58.537239][   T73] 
[   58.539625][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[   58.539625][   T73]      dst_init+0x84/0x4a0
[   58.539625][   T73]      dst_alloc+0x97/0x150
[   58.539625][   T73]      ip6_dst_alloc+0x23/0x90
[   58.539625][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[   58.539625][   T73]      ip6_pol_route+0x56f/0x840
[   58.539625][   T73]      fib6_rule_lookup+0x456/0x630
[   58.539625][   T73]      ip6_route_input+0x59c/0xa50
[   58.539625][   T73]      ipv6_rcv+0x397/0x810
[   58.539625][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[   58.539625][   T73]      process_backlog+0x101/0x620
[   58.539625][   T73]      __napi_poll.constprop.0+0xa2/0x460
[   58.539625][   T73]      net_rx_action+0x495/0xbe0
[   58.539625][   T73]      __do_softirq+0x1b5/0x7f6
[   58.539625][   T73] 
[   58.541554][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[   58.541554][   T73]      netdev_get_by_index+0x5e/0x80
[   58.541554][   T73]      fib6_nh_init+0x3d8/0x1580
[   58.541554][   T73]      ip6_route_info_create+0xf18/0x17d0
[   58.541554][   T73]      ip6_route_add+0x1c/0x140
[   58.541554][   T73]      addrconf_prefix_route+0x2a6/0x430
[   58.541554][   T73]      inet6_addr_add+0x4f8/0xa40
[   58.541554][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   58.541554][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   58.541554][   T73]      netlink_rcv_skb+0x130/0x360
[   58.541554][   T73]      netlink_unicast+0x449/0x710
[   58.541554][   T73]      netlink_sendmsg+0x723/0xbe0
[   58.541554][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   58.541554][   T73]      ___sys_sendmsg+0xee/0x170
[   58.541554][   T73]      __sys_sendmsg+0xcd/0x170
[   58.541554][   T73]      do_syscall_64+0xc6/0x1e0
[   58.541554][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   58.541554][   T73] 
[   58.543552][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[   58.543552][   T73]      netdev_get_by_index+0x5e/0x80
[   58.543552][   T73]      fib6_nh_init+0x3d8/0x1580
[   58.543552][   T73]      ip6_route_info_create+0xf18/0x17d0
[   58.543552][   T73]      addrconf_f6i_alloc+0x315/0x560
[   58.543552][   T73]      ipv6_add_addr+0x411/0x2000
[   58.543552][   T73]      inet6_addr_add+0x30e/0xa40
[   58.543552][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   58.543552][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   58.543552][   T73]      netlink_rcv_skb+0x130/0x360
[   58.543552][   T73]      netlink_unicast+0x449/0x710
[   58.543552][   T73]      netlink_sendmsg+0x723/0xbe0
[   58.543552][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   58.543552][   T73]      ___sys_sendmsg+0xee/0x170
[   58.543552][   T73]      __sys_sendmsg+0xcd/0x170
[   58.543552][   T73]      do_syscall_64+0xc6/0x1e0
[   58.543552][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   58.543552][   T73] 
[   58.545679][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[   58.545679][   T73]      netdev_get_by_index+0x5e/0x80
[   58.545679][   T73]      fib6_nh_init+0x3d8/0x1580
[   58.545679][   T73]      ip6_route_info_create+0xf18/0x17d0
[   58.545679][   T73]      ip6_route_add+0x1c/0x140
[   58.545679][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[   58.545679][   T73]      addrconf_add_dev+0xe2/0x170
[   58.545679][   T73]      inet6_addr_add+0x12f/0xa40
[   58.545679][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   58.545679][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   58.545679][   T73]      netlink_rcv_skb+0x130/0x360
[   58.545679][   T73]      netlink_unicast+0x449/0x710
[   58.545679][   T73]      netlink_sendmsg+0x723/0xbe0
[   58.545679][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   58.545679][   T73]      ___sys_sendmsg+0xee/0x170
[   58.545679][   T73]      __sys_sendmsg+0xcd/0x170
[   58.545679][   T73]      do_syscall_64+0xc6/0x1e0
[   58.545679][   T73] 
[   58.547704][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[   58.547704][   T73]      ipv6_add_dev+0x3ba/0x11c0
[   58.547704][   T73]      ipv6_find_idev+0x102/0x170
[   58.547704][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[   58.547704][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   58.547704][   T73]      netlink_rcv_skb+0x130/0x360
[   58.547704][   T73]      netlink_unicast+0x449/0x710
[   58.547704][   T73]      netlink_sendmsg+0x723/0xbe0
[   58.547704][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   58.547704][   T73]      ___sys_sendmsg+0xee/0x170
[   58.547704][   T73]      __sys_sendmsg+0xcd/0x170
[   58.547704][   T73]      do_syscall_64+0xc6/0x1e0
[   58.547704][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   58.547704][   T73] 
[   58.549627][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[   58.549627][   T73]      neigh_parms_alloc+0x1e5/0x510
[   58.549627][   T73]      ipv6_add_dev+0x2fe/0x11c0
[   58.549627][   T73]      ipv6_find_idev+0x102/0x170
[   58.549627][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[   58.549627][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   58.549627][   T73]      netlink_rcv_skb+0x130/0x360
[   58.549627][   T73]      netlink_unicast+0x449/0x710
[   58.549627][   T73]      netlink_sendmsg+0x723/0xbe0
[   58.549627][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   58.549627][   T73]      ___sys_sendmsg+0xee/0x170
[   58.549627][   T73]      __sys_sendmsg+0xcd/0x170
[   58.549627][   T73]      do_syscall_64+0xc6/0x1e0
[   58.549627][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   58.549627][   T73] 
[   58.551621][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[   58.552069][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[   58.552069][   T73]      netdev_get_by_index+0x5e/0x80
[   58.552069][   T73]      fib6_nh_init+0x3d8/0x1580
[   58.552069][   T73]      ip6_route_info_create+0xf18/0x17d0
[   58.552069][   T73]      addrconf_f6i_alloc+0x265/0x560
[   58.552069][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[   58.552069][   T73]      addrconf_join_anycast+0x1c0/0x220
[   58.552069][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[   58.552069][   T73]      addrconf_dad_completed+0x12b/0xe20
[   58.552069][   T73]      addrconf_dad_begin+0x310/0x670
[   58.552069][   T73]      addrconf_dad_work+0x10b/0xab0
[   58.552069][   T73]      process_one_work+0x84d/0x18a0
[   58.552069][   T73]      worker_thread+0x587/0xd30
[   58.552069][   T73]      kthread+0x28a/0x350
[   58.552069][   T73]      ret_from_fork+0x31/0x70
[   58.552069][   T73]      ret_from_fork_asm+0x1a/0x30
[   58.552069][   T73] 
[   58.554105][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[   58.554105][   T73]      netdev_get_by_index+0x5e/0x80
[   58.554105][   T73]      fib6_nh_init+0x3d8/0x1580
[   58.554105][   T73]      ip6_route_info_create+0xf18/0x17d0
[   58.554105][   T73]      ip6_route_add+0x1c/0x140
[   58.554105][   T73]      addrconf_prefix_route+0x2a6/0x430
[   58.554105][   T73]      inet6_addr_add+0x4f8/0xa40
[   58.554105][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   58.554105][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   58.554105][   T73]      netlink_rcv_skb+0x130/0x360
[   58.554105][   T73]      netlink_unicast+0x449/0x710
[   58.554105][   T73]      netlink_sendmsg+0x723/0xbe0
[   58.554105][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   58.554105][   T73]      ___sys_sendmsg+0xee/0x170
[   58.554105][   T73]      __sys_sendmsg+0xcd/0x170
[   58.554105][   T73]      do_syscall_64+0xc6/0x1e0
[   58.554105][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   58.554105][   T73] 
[   58.556329][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[   58.556329][   T73]      netdev_get_by_index+0x5e/0x80
[   58.556329][   T73]      fib6_nh_init+0x3d8/0x1580
[   58.556329][   T73]      ip6_route_info_create+0xf18/0x17d0
[   58.556329][   T73]      addrconf_f6i_alloc+0x315/0x560
[   58.556329][   T73]      ipv6_add_addr+0x411/0x2000
[   58.556329][   T73]      inet6_addr_add+0x30e/0xa40
[   58.556329][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   58.556329][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   58.556329][   T73]      netlink_rcv_skb+0x130/0x360
[   58.556329][   T73]      netlink_unicast+0x449/0x710
[   58.556329][   T73]      netlink_sendmsg+0x723/0xbe0
[   58.556329][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   58.556329][   T73]      ___sys_sendmsg+0xee/0x170
[   58.556329][   T73]      __sys_sendmsg+0xcd/0x170
[   58.556329][   T73]      do_syscall_64+0xc6/0x1e0
[   58.556329][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   58.556329][   T73] 
[   58.558810][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[   58.558810][   T73]      netdev_get_by_index+0x5e/0x80
[   58.558810][   T73]      fib6_nh_init+0x3d8/0x1580
[   58.558810][   T73]      ip6_route_info_create+0xf18/0x17d0
[   58.558810][   T73]      ip6_route_add+0x1c/0x140
[   58.558810][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[   58.558810][   T73]      addrconf_add_dev+0xe2/0x170
[   58.558810][   T73]      inet6_addr_add+0x12f/0xa40
[   58.558810][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   58.558810][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   58.558810][   T73]      netlink_rcv_skb+0x130/0x360
[   58.558810][   T73]      netlink_unicast+0x449/0x710
[   58.558810][   T73]      netlink_sendmsg+0x723/0xbe0
[   58.558810][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   58.558810][   T73]      ___sys_sendmsg+0xee/0x170
[   58.558810][   T73]      __sys_sendmsg+0xcd/0x170
[   58.558810][   T73]      do_syscall_64+0xc6/0x1e0
[   58.558810][   T73] 
[   58.561211][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[   58.561211][   T73]      ipv6_add_dev+0x3ba/0x11c0
[   58.561211][   T73]      ipv6_find_idev+0x102/0x170
[   58.561211][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[   58.561211][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   58.561211][   T73]      netlink_rcv_skb+0x130/0x360
[   58.561211][   T73]      netlink_unicast+0x449/0x710
[   58.561211][   T73]      netlink_sendmsg+0x723/0xbe0
[   58.561211][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   58.561211][   T73]      ___sys_sendmsg+0xee/0x170
[   58.561211][   T73]      __sys_sendmsg+0xcd/0x170
[   58.561211][   T73]      do_syscall_64+0xc6/0x1e0
[   58.561211][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   58.561211][   T73] 
[   58.563049][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[   58.563049][   T73]      neigh_parms_alloc+0x1e5/0x510
[   58.563049][   T73]      ipv6_add_dev+0x2fe/0x11c0
[   58.563049][   T73]      ipv6_find_idev+0x102/0x170
[   58.563049][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[   58.563049][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   58.563049][   T73]      netlink_rcv_skb+0x130/0x360
[   58.563049][   T73]      netlink_unicast+0x449/0x710
[   58.563049][   T73]      netlink_sendmsg+0x723/0xbe0
[   58.563049][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   58.563049][   T73]      ___sys_sendmsg+0xee/0x170
[   58.563049][   T73]      __sys_sendmsg+0xcd/0x170
[   58.563049][   T73]      do_syscall_64+0xc6/0x1e0
[   58.563049][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   58.563049][   T73] 
[   58.565427][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[   58.565769][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[   58.565769][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[   58.565769][   T73]      ip6_validate_gw+0x3f7/0x7b0
[   58.565769][   T73]      fib6_nh_init+0xa22/0x1580
[   58.565769][   T73]      ip6_route_info_create+0xf18/0x17d0
[   58.565769][   T73]      ip6_route_add+0x1c/0x140
[   58.565769][   T73]      inet6_rtm_newroute+0x104/0x110
[   58.565769][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   58.565769][   T73]      netlink_rcv_skb+0x130/0x360
[   58.565769][   T73]      netlink_unicast+0x449/0x710
[   58.565769][   T73]      netlink_sendmsg+0x723/0xbe0
[   58.565769][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   58.565769][   T73]      ___sys_sendmsg+0xee/0x170
[   58.565769][   T73]      __sys_sendmsg+0xcd/0x170
[   58.565769][   T73]      do_syscall_64+0xc6/0x1e0
[   58.565769][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   58.565769][   T73] 
[   58.568148][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[   58.568148][   T73]      dst_init+0x84/0x4a0
[   58.568148][   T73]      dst_alloc+0x97/0x150
[   58.568148][   T73]      ip6_dst_alloc+0x23/0x90
[   58.568148][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[   58.568148][   T73]      ip6_pol_route+0x56f/0x840
[   58.568148][   T73]      fib6_rule_lookup+0x456/0x630
[   58.568148][   T73]      ip6_route_input+0x59c/0xa50
[   58.568148][   T73]      ipv6_rcv+0x397/0x810
[   58.568148][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[   58.568148][   T73]      process_backlog+0x101/0x620
[   58.568148][   T73]      __napi_poll.constprop.0+0xa2/0x460
[   58.568148][   T73]      net_rx_action+0x495/0xbe0
[   58.568148][   T73]      __do_softirq+0x1b5/0x7f6
[   58.568148][   T73] 
[   58.570106][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[   58.570106][   T73]      netdev_get_by_index+0x5e/0x80
[   58.570106][   T73]      fib6_nh_init+0x3d8/0x1580
[   58.570106][   T73]      ip6_route_info_create+0xf18/0x17d0
[   58.570106][   T73]      ip6_route_add+0x1c/0x140
[   58.570106][   T73]      addrconf_prefix_route+0x2a6/0x430
[   58.570106][   T73]      inet6_addr_add+0x4f8/0xa40
[   58.570106][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   58.570106][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   58.570106][   T73]      netlink_rcv_skb+0x130/0x360
[   58.570106][   T73]      netlink_unicast+0x449/0x710
[   58.570106][   T73]      netlink_sendmsg+0x723/0xbe0
[   58.570106][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   58.570106][   T73]      ___sys_sendmsg+0xee/0x170
[   58.570106][   T73]      __sys_sendmsg+0xcd/0x170
[   58.570106][   T73]      do_syscall_64+0xc6/0x1e0
[   58.570106][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   58.570106][   T73] 
[   58.572592][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[   58.572592][   T73]      netdev_get_by_index+0x5e/0x80
[   58.572592][   T73]      fib6_nh_init+0x3d8/0x1580
[   58.572592][   T73]      ip6_route_info_create+0xf18/0x17d0
[   58.572592][   T73]      addrconf_f6i_alloc+0x315/0x560
[   58.572592][   T73]      ipv6_add_addr+0x411/0x2000
[   58.572592][   T73]      inet6_addr_add+0x30e/0xa40
[   58.572592][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   58.572592][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   58.572592][   T73]      netlink_rcv_skb+0x130/0x360
[   58.572592][   T73]      netlink_unicast+0x449/0x710
[   58.572592][   T73]      netlink_sendmsg+0x723/0xbe0
[   58.572592][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   58.572592][   T73]      ___sys_sendmsg+0xee/0x170
[   58.572592][   T73]      __sys_sendmsg+0xcd/0x170
[   58.572592][   T73]      do_syscall_64+0xc6/0x1e0
[   58.572592][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   58.572592][   T73] 
[   58.575032][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[   58.575032][   T73]      netdev_get_by_index+0x5e/0x80
[   58.575032][   T73]      fib6_nh_init+0x3d8/0x1580
[   58.575032][   T73]      ip6_route_info_create+0xf18/0x17d0
[   58.575032][   T73]      ip6_route_add+0x1c/0x140
[   58.575032][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[   58.575032][   T73]      addrconf_add_dev+0xe2/0x170
[   58.575032][   T73]      inet6_addr_add+0x12f/0xa40
[   58.575032][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   58.575032][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   58.575032][   T73]      netlink_rcv_skb+0x130/0x360
[   58.575032][   T73]      netlink_unicast+0x449/0x710
[   58.575032][   T73]      netlink_sendmsg+0x723/0xbe0
[   58.575032][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   58.575032][   T73]      ___sys_sendmsg+0xee/0x170
[   58.575032][   T73]      __sys_sendmsg+0xcd/0x170
[   58.575032][   T73]      do_syscall_64+0xc6/0x1e0
[   58.575032][   T73] 
[   58.577507][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[   58.577507][   T73]      ipv6_add_dev+0x3ba/0x11c0
[   58.577507][   T73]      ipv6_find_idev+0x102/0x170
[   58.577507][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[   58.577507][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   58.577507][   T73]      netlink_rcv_skb+0x130/0x360
[   58.577507][   T73]      netlink_unicast+0x449/0x710
[   58.577507][   T73]      netlink_sendmsg+0x723/0xbe0
[   58.577507][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   58.577507][   T73]      ___sys_sendmsg+0xee/0x170
[   58.577507][   T73]      __sys_sendmsg+0xcd/0x170
[   58.577507][   T73]      do_syscall_64+0xc6/0x1e0
[   58.577507][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   58.577507][   T73] 
[   58.579420][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[   58.579420][   T73]      neigh_parms_alloc+0x1e5/0x510
[   58.579420][   T73]      ipv6_add_dev+0x2fe/0x11c0
[   58.579420][   T73]      ipv6_find_idev+0x102/0x170
[   58.579420][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[   58.579420][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   58.579420][   T73]      netlink_rcv_skb+0x130/0x360
[   58.579420][   T73]      netlink_unicast+0x449/0x710
[   58.579420][   T73]      netlink_sendmsg+0x723/0xbe0
[   58.579420][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   58.579420][   T73]      ___sys_sendmsg+0xee/0x170
[   58.579420][   T73]      __sys_sendmsg+0xcd/0x170
[   58.579420][   T73]      do_syscall_64+0xc6/0x1e0
[   58.579420][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   58.579420][   T73] 
[   58.581321][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[   58.581918][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[   58.581918][   T73]      netdev_get_by_index+0x5e/0x80
[   58.581918][   T73]      fib6_nh_init+0x3d8/0x1580
[   58.581918][   T73]      ip6_route_info_create+0xf18/0x17d0
[   58.581918][   T73]      addrconf_f6i_alloc+0x265/0x560
[   58.581918][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[   58.581918][   T73]      addrconf_join_anycast+0x1c0/0x220
[   58.581918][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[   58.581918][   T73]      addrconf_dad_completed+0x12b/0xe20
[   58.581918][   T73]      addrconf_dad_begin+0x310/0x670
[   58.581918][   T73]      addrconf_dad_work+0x10b/0xab0
[   58.581918][   T73]      process_one_work+0x84d/0x18a0
[   58.581918][   T73]      worker_thread+0x587/0xd30
[   58.581918][   T73]      kthread+0x28a/0x350
[   58.581918][   T73]      ret_from_fork+0x31/0x70
[   58.581918][   T73]      ret_from_fork_asm+0x1a/0x30
[   58.581918][   T73] 
[   58.583915][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[   58.583915][   T73]      netdev_get_by_index+0x5e/0x80
[   58.583915][   T73]      fib6_nh_init+0x3d8/0x1580
[   58.583915][   T73]      ip6_route_info_create+0xf18/0x17d0
[   58.583915][   T73]      ip6_route_add+0x1c/0x140
[   58.583915][   T73]      addrconf_prefix_route+0x2a6/0x430
[   58.583915][   T73]      inet6_addr_add+0x4f8/0xa40
[   58.583915][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   58.583915][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   58.583915][   T73]      netlink_rcv_skb+0x130/0x360
[   58.583915][   T73]      netlink_unicast+0x449/0x710
[   58.583915][   T73]      netlink_sendmsg+0x723/0xbe0
[   58.583915][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   58.583915][   T73]      ___sys_sendmsg+0xee/0x170
[   58.583915][   T73]      __sys_sendmsg+0xcd/0x170
[   58.583915][   T73]      do_syscall_64+0xc6/0x1e0
[   58.583915][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   58.583915][   T73] 
[   58.586039][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[   58.586039][   T73]      netdev_get_by_index+0x5e/0x80
[   58.586039][   T73]      fib6_nh_init+0x3d8/0x1580
[   58.586039][   T73]      ip6_route_info_create+0xf18/0x17d0
[   58.586039][   T73]      addrconf_f6i_alloc+0x315/0x560
[   58.586039][   T73]      ipv6_add_addr+0x411/0x2000
[   58.586039][   T73]      inet6_addr_add+0x30e/0xa40
[   58.586039][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   58.586039][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   58.586039][   T73]      netlink_rcv_skb+0x130/0x360
[   58.586039][   T73]      netlink_unicast+0x449/0x710
[   58.586039][   T73]      netlink_sendmsg+0x723/0xbe0
[   58.586039][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   58.586039][   T73]      ___sys_sendmsg+0xee/0x170
[   58.586039][   T73]      __sys_sendmsg+0xcd/0x170
[   58.586039][   T73]      do_syscall_64+0xc6/0x1e0
[   58.586039][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   58.586039][   T73] 
[   58.588338][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[   58.588338][   T73]      netdev_get_by_index+0x5e/0x80
[   58.588338][   T73]      fib6_nh_init+0x3d8/0x1580
[   58.588338][   T73]      ip6_route_info_create+0xf18/0x17d0
[   58.588338][   T73]      ip6_route_add+0x1c/0x140
[   58.588338][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[   58.588338][   T73]      addrconf_add_dev+0xe2/0x170
[   58.588338][   T73]      inet6_addr_add+0x12f/0xa40
[   58.588338][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   58.588338][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   58.588338][   T73]      netlink_rcv_skb+0x130/0x360
[   58.588338][   T73]      netlink_unicast+0x449/0x710
[   58.588338][   T73]      netlink_sendmsg+0x723/0xbe0
[   58.588338][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   58.588338][   T73]      ___sys_sendmsg+0xee/0x170
[   58.588338][   T73]      __sys_sendmsg+0xcd/0x170
[   58.588338][   T73]      do_syscall_64+0xc6/0x1e0
[   58.588338][   T73] 
[   58.590608][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[   58.590608][   T73]      ipv6_add_dev+0x3ba/0x11c0
[   58.590608][   T73]      ipv6_find_idev+0x102/0x170
[   58.590608][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[   58.590608][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   58.590608][   T73]      netlink_rcv_skb+0x130/0x360
[   58.590608][   T73]      netlink_unicast+0x449/0x710
[   58.590608][   T73]      netlink_sendmsg+0x723/0xbe0
[   58.590608][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   58.590608][   T73]      ___sys_sendmsg+0xee/0x170
[   58.590608][   T73]      __sys_sendmsg+0xcd/0x170
[   58.590608][   T73]      do_syscall_64+0xc6/0x1e0
[   58.590608][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   58.590608][   T73] 
[   58.592331][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[   58.592331][   T73]      neigh_parms_alloc+0x1e5/0x510
[   58.592331][   T73]      ipv6_add_dev+0x2fe/0x11c0
[   58.592331][   T73]      ipv6_find_idev+0x102/0x170
[   58.592331][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[   58.592331][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   58.592331][   T73]      netlink_rcv_skb+0x130/0x360
[   58.592331][   T73]      netlink_unicast+0x449/0x710
[   58.592331][   T73]      netlink_sendmsg+0x723/0xbe0
[   58.592331][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   58.592331][   T73]      ___sys_sendmsg+0xee/0x170
[   58.592331][   T73]      __sys_sendmsg+0xcd/0x170
[   58.592331][   T73]      do_syscall_64+0xc6/0x1e0
[   58.592331][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   58.592331][   T73] 
[   68.711700][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[   68.712136][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[   68.712136][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[   68.712136][   T73]      ip6_validate_gw+0x3f7/0x7b0
[   68.712136][   T73]      fib6_nh_init+0xa22/0x1580
[   68.712136][   T73]      ip6_route_info_create+0xf18/0x17d0
[   68.712136][   T73]      ip6_route_add+0x1c/0x140
[   68.712136][   T73]      inet6_rtm_newroute+0x104/0x110
[   68.712136][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   68.712136][   T73]      netlink_rcv_skb+0x130/0x360
[   68.712136][   T73]      netlink_unicast+0x449/0x710
[   68.712136][   T73]      netlink_sendmsg+0x723/0xbe0
[   68.712136][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   68.712136][   T73]      ___sys_sendmsg+0xee/0x170
[   68.712136][   T73]      __sys_sendmsg+0xcd/0x170
[   68.712136][   T73]      do_syscall_64+0xc6/0x1e0
[   68.712136][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   68.712136][   T73] 
[   68.714340][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[   68.714340][   T73]      dst_init+0x84/0x4a0
[   68.714340][   T73]      dst_alloc+0x97/0x150
[   68.714340][   T73]      ip6_dst_alloc+0x23/0x90
[   68.714340][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[   68.714340][   T73]      ip6_pol_route+0x56f/0x840
[   68.714340][   T73]      fib6_rule_lookup+0x456/0x630
[   68.714340][   T73]      ip6_route_input+0x59c/0xa50
[   68.714340][   T73]      ipv6_rcv+0x397/0x810
[   68.714340][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[   68.714340][   T73]      process_backlog+0x101/0x620
[   68.714340][   T73]      __napi_poll.constprop.0+0xa2/0x460
[   68.714340][   T73]      net_rx_action+0x495/0xbe0
[   68.714340][   T73]      __do_softirq+0x1b5/0x7f6
[   68.714340][   T73] 
[   68.716256][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[   68.716256][   T73]      netdev_get_by_index+0x5e/0x80
[   68.716256][   T73]      fib6_nh_init+0x3d8/0x1580
[   68.716256][   T73]      ip6_route_info_create+0xf18/0x17d0
[   68.716256][   T73]      ip6_route_add+0x1c/0x140
[   68.716256][   T73]      addrconf_prefix_route+0x2a6/0x430
[   68.716256][   T73]      inet6_addr_add+0x4f8/0xa40
[   68.716256][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   68.716256][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   68.716256][   T73]      netlink_rcv_skb+0x130/0x360
[   68.716256][   T73]      netlink_unicast+0x449/0x710
[   68.716256][   T73]      netlink_sendmsg+0x723/0xbe0
[   68.716256][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   68.716256][   T73]      ___sys_sendmsg+0xee/0x170
[   68.716256][   T73]      __sys_sendmsg+0xcd/0x170
[   68.716256][   T73]      do_syscall_64+0xc6/0x1e0
[   68.716256][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   68.716256][   T73] 
[   68.718486][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[   68.718486][   T73]      netdev_get_by_index+0x5e/0x80
[   68.718486][   T73]      fib6_nh_init+0x3d8/0x1580
[   68.718486][   T73]      ip6_route_info_create+0xf18/0x17d0
[   68.718486][   T73]      addrconf_f6i_alloc+0x315/0x560
[   68.718486][   T73]      ipv6_add_addr+0x411/0x2000
[   68.718486][   T73]      inet6_addr_add+0x30e/0xa40
[   68.718486][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   68.718486][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   68.718486][   T73]      netlink_rcv_skb+0x130/0x360
[   68.718486][   T73]      netlink_unicast+0x449/0x710
[   68.718486][   T73]      netlink_sendmsg+0x723/0xbe0
[   68.718486][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   68.718486][   T73]      ___sys_sendmsg+0xee/0x170
[   68.718486][   T73]      __sys_sendmsg+0xcd/0x170
[   68.718486][   T73]      do_syscall_64+0xc6/0x1e0
[   68.718486][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   68.718486][   T73] 
[   68.720821][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[   68.720821][   T73]      netdev_get_by_index+0x5e/0x80
[   68.720821][   T73]      fib6_nh_init+0x3d8/0x1580
[   68.720821][   T73]      ip6_route_info_create+0xf18/0x17d0
[   68.720821][   T73]      ip6_route_add+0x1c/0x140
[   68.720821][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[   68.720821][   T73]      addrconf_add_dev+0xe2/0x170
[   68.720821][   T73]      inet6_addr_add+0x12f/0xa40
[   68.720821][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   68.720821][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   68.720821][   T73]      netlink_rcv_skb+0x130/0x360
[   68.720821][   T73]      netlink_unicast+0x449/0x710
[   68.720821][   T73]      netlink_sendmsg+0x723/0xbe0
[   68.720821][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   68.720821][   T73]      ___sys_sendmsg+0xee/0x170
[   68.720821][   T73]      __sys_sendmsg+0xcd/0x170
[   68.720821][   T73]      do_syscall_64+0xc6/0x1e0
[   68.720821][   T73] 
[   68.723160][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[   68.723160][   T73]      ipv6_add_dev+0x3ba/0x11c0
[   68.723160][   T73]      ipv6_find_idev+0x102/0x170
[   68.723160][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[   68.723160][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   68.723160][   T73]      netlink_rcv_skb+0x130/0x360
[   68.723160][   T73]      netlink_unicast+0x449/0x710
[   68.723160][   T73]      netlink_sendmsg+0x723/0xbe0
[   68.723160][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   68.723160][   T73]      ___sys_sendmsg+0xee/0x170
[   68.723160][   T73]      __sys_sendmsg+0xcd/0x170
[   68.723160][   T73]      do_syscall_64+0xc6/0x1e0
[   68.723160][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   68.723160][   T73] 
[   68.724956][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[   68.724956][   T73]      neigh_parms_alloc+0x1e5/0x510
[   68.724956][   T73]      ipv6_add_dev+0x2fe/0x11c0
[   68.724956][   T73]      ipv6_find_idev+0x102/0x170
[   68.724956][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[   68.724956][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   68.724956][   T73]      netlink_rcv_skb+0x130/0x360
[   68.724956][   T73]      netlink_unicast+0x449/0x710
[   68.724956][   T73]      netlink_sendmsg+0x723/0xbe0
[   68.724956][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   68.724956][   T73]      ___sys_sendmsg+0xee/0x170
[   68.724956][   T73]      __sys_sendmsg+0xcd/0x170
[   68.724956][   T73]      do_syscall_64+0xc6/0x1e0
[   68.724956][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   68.724956][   T73] 
[   68.727319][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[   68.727709][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[   68.727709][   T73]      netdev_get_by_index+0x5e/0x80
[   68.727709][   T73]      fib6_nh_init+0x3d8/0x1580
[   68.727709][   T73]      ip6_route_info_create+0xf18/0x17d0
[   68.727709][   T73]      addrconf_f6i_alloc+0x265/0x560
[   68.727709][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[   68.727709][   T73]      addrconf_join_anycast+0x1c0/0x220
[   68.727709][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[   68.727709][   T73]      addrconf_dad_completed+0x12b/0xe20
[   68.727709][   T73]      addrconf_dad_begin+0x310/0x670
[   68.727709][   T73]      addrconf_dad_work+0x10b/0xab0
[   68.727709][   T73]      process_one_work+0x84d/0x18a0
[   68.727709][   T73]      worker_thread+0x587/0xd30
[   68.727709][   T73]      kthread+0x28a/0x350
[   68.727709][   T73]      ret_from_fork+0x31/0x70
[   68.727709][   T73]      ret_from_fork_asm+0x1a/0x30
[   68.727709][   T73] 
[   68.730092][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[   68.730092][   T73]      netdev_get_by_index+0x5e/0x80
[   68.730092][   T73]      fib6_nh_init+0x3d8/0x1580
[   68.730092][   T73]      ip6_route_info_create+0xf18/0x17d0
[   68.730092][   T73]      ip6_route_add+0x1c/0x140
[   68.730092][   T73]      addrconf_prefix_route+0x2a6/0x430
[   68.730092][   T73]      inet6_addr_add+0x4f8/0xa40
[   68.730092][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   68.730092][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   68.730092][   T73]      netlink_rcv_skb+0x130/0x360
[   68.730092][   T73]      netlink_unicast+0x449/0x710
[   68.730092][   T73]      netlink_sendmsg+0x723/0xbe0
[   68.730092][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   68.730092][   T73]      ___sys_sendmsg+0xee/0x170
[   68.730092][   T73]      __sys_sendmsg+0xcd/0x170
[   68.730092][   T73]      do_syscall_64+0xc6/0x1e0
[   68.730092][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   68.730092][   T73] 
[   68.732504][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[   68.732504][   T73]      netdev_get_by_index+0x5e/0x80
[   68.732504][   T73]      fib6_nh_init+0x3d8/0x1580
[   68.732504][   T73]      ip6_route_info_create+0xf18/0x17d0
[   68.732504][   T73]      addrconf_f6i_alloc+0x315/0x560
[   68.732504][   T73]      ipv6_add_addr+0x411/0x2000
[   68.732504][   T73]      inet6_addr_add+0x30e/0xa40
[   68.732504][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   68.732504][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   68.732504][   T73]      netlink_rcv_skb+0x130/0x360
[   68.732504][   T73]      netlink_unicast+0x449/0x710
[   68.732504][   T73]      netlink_sendmsg+0x723/0xbe0
[   68.732504][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   68.732504][   T73]      ___sys_sendmsg+0xee/0x170
[   68.732504][   T73]      __sys_sendmsg+0xcd/0x170
[   68.732504][   T73]      do_syscall_64+0xc6/0x1e0
[   68.732504][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   68.732504][   T73] 
[   68.734846][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[   68.734846][   T73]      netdev_get_by_index+0x5e/0x80
[   68.734846][   T73]      fib6_nh_init+0x3d8/0x1580
[   68.734846][   T73]      ip6_route_info_create+0xf18/0x17d0
[   68.734846][   T73]      ip6_route_add+0x1c/0x140
[   68.734846][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[   68.734846][   T73]      addrconf_add_dev+0xe2/0x170
[   68.734846][   T73]      inet6_addr_add+0x12f/0xa40
[   68.734846][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   68.734846][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   68.734846][   T73]      netlink_rcv_skb+0x130/0x360
[   68.734846][   T73]      netlink_unicast+0x449/0x710
[   68.734846][   T73]      netlink_sendmsg+0x723/0xbe0
[   68.734846][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   68.734846][   T73]      ___sys_sendmsg+0xee/0x170
[   68.734846][   T73]      __sys_sendmsg+0xcd/0x170
[   68.734846][   T73]      do_syscall_64+0xc6/0x1e0
[   68.734846][   T73] 
[   68.737302][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[   68.737302][   T73]      ipv6_add_dev+0x3ba/0x11c0
[   68.737302][   T73]      ipv6_find_idev+0x102/0x170
[   68.737302][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[   68.737302][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   68.737302][   T73]      netlink_rcv_skb+0x130/0x360
[   68.737302][   T73]      netlink_unicast+0x449/0x710
[   68.737302][   T73]      netlink_sendmsg+0x723/0xbe0
[   68.737302][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   68.737302][   T73]      ___sys_sendmsg+0xee/0x170
[   68.737302][   T73]      __sys_sendmsg+0xcd/0x170
[   68.737302][   T73]      do_syscall_64+0xc6/0x1e0
[   68.737302][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   68.737302][   T73] 
[   68.739285][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[   68.739285][   T73]      neigh_parms_alloc+0x1e5/0x510
[   68.739285][   T73]      ipv6_add_dev+0x2fe/0x11c0
[   68.739285][   T73]      ipv6_find_idev+0x102/0x170
[   68.739285][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[   68.739285][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   68.739285][   T73]      netlink_rcv_skb+0x130/0x360
[   68.739285][   T73]      netlink_unicast+0x449/0x710
[   68.739285][   T73]      netlink_sendmsg+0x723/0xbe0
[   68.739285][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   68.739285][   T73]      ___sys_sendmsg+0xee/0x170
[   68.739285][   T73]      __sys_sendmsg+0xcd/0x170
[   68.739285][   T73]      do_syscall_64+0xc6/0x1e0
[   68.739285][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   68.739285][   T73] 
[   68.741347][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[   68.741677][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[   68.741677][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[   68.741677][   T73]      ip6_validate_gw+0x3f7/0x7b0
[   68.741677][   T73]      fib6_nh_init+0xa22/0x1580
[   68.741677][   T73]      ip6_route_info_create+0xf18/0x17d0
[   68.741677][   T73]      ip6_route_add+0x1c/0x140
[   68.741677][   T73]      inet6_rtm_newroute+0x104/0x110
[   68.741677][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   68.741677][   T73]      netlink_rcv_skb+0x130/0x360
[   68.741677][   T73]      netlink_unicast+0x449/0x710
[   68.741677][   T73]      netlink_sendmsg+0x723/0xbe0
[   68.741677][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   68.741677][   T73]      ___sys_sendmsg+0xee/0x170
[   68.741677][   T73]      __sys_sendmsg+0xcd/0x170
[   68.741677][   T73]      do_syscall_64+0xc6/0x1e0
[   68.741677][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   68.741677][   T73] 
[   68.744001][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[   68.744001][   T73]      dst_init+0x84/0x4a0
[   68.744001][   T73]      dst_alloc+0x97/0x150
[   68.744001][   T73]      ip6_dst_alloc+0x23/0x90
[   68.744001][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[   68.744001][   T73]      ip6_pol_route+0x56f/0x840
[   68.744001][   T73]      fib6_rule_lookup+0x456/0x630
[   68.744001][   T73]      ip6_route_input+0x59c/0xa50
[   68.744001][   T73]      ipv6_rcv+0x397/0x810
[   68.744001][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[   68.744001][   T73]      process_backlog+0x101/0x620
[   68.744001][   T73]      __napi_poll.constprop.0+0xa2/0x460
[   68.744001][   T73]      net_rx_action+0x495/0xbe0
[   68.744001][   T73]      __do_softirq+0x1b5/0x7f6
[   68.744001][   T73] 
[   68.746350][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[   68.746350][   T73]      netdev_get_by_index+0x5e/0x80
[   68.746350][   T73]      fib6_nh_init+0x3d8/0x1580
[   68.746350][   T73]      ip6_route_info_create+0xf18/0x17d0
[   68.746350][   T73]      ip6_route_add+0x1c/0x140
[   68.746350][   T73]      addrconf_prefix_route+0x2a6/0x430
[   68.746350][   T73]      inet6_addr_add+0x4f8/0xa40
[   68.746350][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   68.746350][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   68.746350][   T73]      netlink_rcv_skb+0x130/0x360
[   68.746350][   T73]      netlink_unicast+0x449/0x710
[   68.746350][   T73]      netlink_sendmsg+0x723/0xbe0
[   68.746350][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   68.746350][   T73]      ___sys_sendmsg+0xee/0x170
[   68.746350][   T73]      __sys_sendmsg+0xcd/0x170
[   68.746350][   T73]      do_syscall_64+0xc6/0x1e0
[   68.746350][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   68.746350][   T73] 
[   68.748883][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[   68.748883][   T73]      netdev_get_by_index+0x5e/0x80
[   68.748883][   T73]      fib6_nh_init+0x3d8/0x1580
[   68.748883][   T73]      ip6_route_info_create+0xf18/0x17d0
[   68.748883][   T73]      addrconf_f6i_alloc+0x315/0x560
[   68.748883][   T73]      ipv6_add_addr+0x411/0x2000
[   68.748883][   T73]      inet6_addr_add+0x30e/0xa40
[   68.748883][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   68.748883][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   68.748883][   T73]      netlink_rcv_skb+0x130/0x360
[   68.748883][   T73]      netlink_unicast+0x449/0x710
[   68.748883][   T73]      netlink_sendmsg+0x723/0xbe0
[   68.748883][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   68.748883][   T73]      ___sys_sendmsg+0xee/0x170
[   68.748883][   T73]      __sys_sendmsg+0xcd/0x170
[   68.748883][   T73]      do_syscall_64+0xc6/0x1e0
[   68.748883][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   68.748883][   T73] 
[   68.751444][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[   68.751444][   T73]      netdev_get_by_index+0x5e/0x80
[   68.751444][   T73]      fib6_nh_init+0x3d8/0x1580
[   68.751444][   T73]      ip6_route_info_create+0xf18/0x17d0
[   68.751444][   T73]      ip6_route_add+0x1c/0x140
[   68.751444][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[   68.751444][   T73]      addrconf_add_dev+0xe2/0x170
[   68.751444][   T73]      inet6_addr_add+0x12f/0xa40
[   68.751444][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   68.751444][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   68.751444][   T73]      netlink_rcv_skb+0x130/0x360
[   68.751444][   T73]      netlink_unicast+0x449/0x710
[   68.751444][   T73]      netlink_sendmsg+0x723/0xbe0
[   68.751444][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   68.751444][   T73]      ___sys_sendmsg+0xee/0x170
[   68.751444][   T73]      __sys_sendmsg+0xcd/0x170
[   68.751444][   T73]      do_syscall_64+0xc6/0x1e0
[   68.751444][   T73] 
[   68.754309][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[   68.754309][   T73]      ipv6_add_dev+0x3ba/0x11c0
[   68.754309][   T73]      ipv6_find_idev+0x102/0x170
[   68.754309][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[   68.754309][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   68.754309][   T73]      netlink_rcv_skb+0x130/0x360
[   68.754309][   T73]      netlink_unicast+0x449/0x710
[   68.754309][   T73]      netlink_sendmsg+0x723/0xbe0
[   68.754309][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   68.754309][   T73]      ___sys_sendmsg+0xee/0x170
[   68.754309][   T73]      __sys_sendmsg+0xcd/0x170
[   68.754309][   T73]      do_syscall_64+0xc6/0x1e0
[   68.754309][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   68.754309][   T73] 
[   68.756192][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[   68.756192][   T73]      neigh_parms_alloc+0x1e5/0x510
[   68.756192][   T73]      ipv6_add_dev+0x2fe/0x11c0
[   68.756192][   T73]      ipv6_find_idev+0x102/0x170
[   68.756192][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[   68.756192][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   68.756192][   T73]      netlink_rcv_skb+0x130/0x360
[   68.756192][   T73]      netlink_unicast+0x449/0x710
[   68.756192][   T73]      netlink_sendmsg+0x723/0xbe0
[   68.756192][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   68.756192][   T73]      ___sys_sendmsg+0xee/0x170
[   68.756192][   T73]      __sys_sendmsg+0xcd/0x170
[   68.756192][   T73]      do_syscall_64+0xc6/0x1e0
[   68.756192][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   68.756192][   T73] 
[   68.758470][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[   68.758854][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[   68.758854][   T73]      netdev_get_by_index+0x5e/0x80
[   68.758854][   T73]      fib6_nh_init+0x3d8/0x1580
[   68.758854][   T73]      ip6_route_info_create+0xf18/0x17d0
[   68.758854][   T73]      addrconf_f6i_alloc+0x265/0x560
[   68.758854][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[   68.758854][   T73]      addrconf_join_anycast+0x1c0/0x220
[   68.758854][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[   68.758854][   T73]      addrconf_dad_completed+0x12b/0xe20
[   68.758854][   T73]      addrconf_dad_begin+0x310/0x670
[   68.758854][   T73]      addrconf_dad_work+0x10b/0xab0
[   68.758854][   T73]      process_one_work+0x84d/0x18a0
[   68.758854][   T73]      worker_thread+0x587/0xd30
[   68.758854][   T73]      kthread+0x28a/0x350
[   68.758854][   T73]      ret_from_fork+0x31/0x70
[   68.758854][   T73]      ret_from_fork_asm+0x1a/0x30
[   68.758854][   T73] 
[   68.761229][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[   68.761229][   T73]      netdev_get_by_index+0x5e/0x80
[   68.761229][   T73]      fib6_nh_init+0x3d8/0x1580
[   68.761229][   T73]      ip6_route_info_create+0xf18/0x17d0
[   68.761229][   T73]      ip6_route_add+0x1c/0x140
[   68.761229][   T73]      addrconf_prefix_route+0x2a6/0x430
[   68.761229][   T73]      inet6_addr_add+0x4f8/0xa40
[   68.761229][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   68.761229][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   68.761229][   T73]      netlink_rcv_skb+0x130/0x360
[   68.761229][   T73]      netlink_unicast+0x449/0x710
[   68.761229][   T73]      netlink_sendmsg+0x723/0xbe0
[   68.761229][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   68.761229][   T73]      ___sys_sendmsg+0xee/0x170
[   68.761229][   T73]      __sys_sendmsg+0xcd/0x170
[   68.761229][   T73]      do_syscall_64+0xc6/0x1e0
[   68.761229][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   68.761229][   T73] 
[   68.763839][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[   68.763839][   T73]      netdev_get_by_index+0x5e/0x80
[   68.763839][   T73]      fib6_nh_init+0x3d8/0x1580
[   68.763839][   T73]      ip6_route_info_create+0xf18/0x17d0
[   68.763839][   T73]      addrconf_f6i_alloc+0x315/0x560
[   68.763839][   T73]      ipv6_add_addr+0x411/0x2000
[   68.763839][   T73]      inet6_addr_add+0x30e/0xa40
[   68.763839][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   68.763839][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   68.763839][   T73]      netlink_rcv_skb+0x130/0x360
[   68.763839][   T73]      netlink_unicast+0x449/0x710
[   68.763839][   T73]      netlink_sendmsg+0x723/0xbe0
[   68.763839][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   68.763839][   T73]      ___sys_sendmsg+0xee/0x170
[   68.763839][   T73]      __sys_sendmsg+0xcd/0x170
[   68.763839][   T73]      do_syscall_64+0xc6/0x1e0
[   68.763839][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   68.763839][   T73] 
[   68.766415][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[   68.766415][   T73]      netdev_get_by_index+0x5e/0x80
[   68.766415][   T73]      fib6_nh_init+0x3d8/0x1580
[   68.766415][   T73]      ip6_route_info_create+0xf18/0x17d0
[   68.766415][   T73]      ip6_route_add+0x1c/0x140
[   68.766415][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[   68.766415][   T73]      addrconf_add_dev+0xe2/0x170
[   68.766415][   T73]      inet6_addr_add+0x12f/0xa40
[   68.766415][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   68.766415][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   68.766415][   T73]      netlink_rcv_skb+0x130/0x360
[   68.766415][   T73]      netlink_unicast+0x449/0x710
[   68.766415][   T73]      netlink_sendmsg+0x723/0xbe0
[   68.766415][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   68.766415][   T73]      ___sys_sendmsg+0xee/0x170
[   68.766415][   T73]      __sys_sendmsg+0xcd/0x170
[   68.766415][   T73]      do_syscall_64+0xc6/0x1e0
[   68.766415][   T73] 
[   68.769056][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[   68.769056][   T73]      ipv6_add_dev+0x3ba/0x11c0
[   68.769056][   T73]      ipv6_find_idev+0x102/0x170
[   68.769056][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[   68.769056][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   68.769056][   T73]      netlink_rcv_skb+0x130/0x360
[   68.769056][   T73]      netlink_unicast+0x449/0x710
[   68.769056][   T73]      netlink_sendmsg+0x723/0xbe0
[   68.769056][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   68.769056][   T73]      ___sys_sendmsg+0xee/0x170
[   68.769056][   T73]      __sys_sendmsg+0xcd/0x170
[   68.769056][   T73]      do_syscall_64+0xc6/0x1e0
[   68.769056][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   68.769056][   T73] 
[   68.771121][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[   68.771121][   T73]      neigh_parms_alloc+0x1e5/0x510
[   68.771121][   T73]      ipv6_add_dev+0x2fe/0x11c0
[   68.771121][   T73]      ipv6_find_idev+0x102/0x170
[   68.771121][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[   68.771121][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   68.771121][   T73]      netlink_rcv_skb+0x130/0x360
[   68.771121][   T73]      netlink_unicast+0x449/0x710
[   68.771121][   T73]      netlink_sendmsg+0x723/0xbe0
[   68.771121][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   68.771121][   T73]      ___sys_sendmsg+0xee/0x170
[   68.771121][   T73]      __sys_sendmsg+0xcd/0x170
[   68.771121][   T73]      do_syscall_64+0xc6/0x1e0
[   68.771121][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   68.771121][   T73] 
[   78.904673][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[   78.905135][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[   78.905135][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[   78.905135][   T73]      ip6_validate_gw+0x3f7/0x7b0
[   78.905135][   T73]      fib6_nh_init+0xa22/0x1580
[   78.905135][   T73]      ip6_route_info_create+0xf18/0x17d0
[   78.905135][   T73]      ip6_route_add+0x1c/0x140
[   78.905135][   T73]      inet6_rtm_newroute+0x104/0x110
[   78.905135][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   78.905135][   T73]      netlink_rcv_skb+0x130/0x360
[   78.905135][   T73]      netlink_unicast+0x449/0x710
[   78.905135][   T73]      netlink_sendmsg+0x723/0xbe0
[   78.905135][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   78.905135][   T73]      ___sys_sendmsg+0xee/0x170
[   78.905135][   T73]      __sys_sendmsg+0xcd/0x170
[   78.905135][   T73]      do_syscall_64+0xc6/0x1e0
[   78.905135][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   78.905135][   T73] 
[   78.907111][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[   78.907111][   T73]      dst_init+0x84/0x4a0
[   78.907111][   T73]      dst_alloc+0x97/0x150
[   78.907111][   T73]      ip6_dst_alloc+0x23/0x90
[   78.907111][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[   78.907111][   T73]      ip6_pol_route+0x56f/0x840
[   78.907111][   T73]      fib6_rule_lookup+0x456/0x630
[   78.907111][   T73]      ip6_route_input+0x59c/0xa50
[   78.907111][   T73]      ipv6_rcv+0x397/0x810
[   78.907111][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[   78.907111][   T73]      process_backlog+0x101/0x620
[   78.907111][   T73]      __napi_poll.constprop.0+0xa2/0x460
[   78.907111][   T73]      net_rx_action+0x495/0xbe0
[   78.907111][   T73]      __do_softirq+0x1b5/0x7f6
[   78.907111][   T73] 
[   78.908816][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[   78.908816][   T73]      netdev_get_by_index+0x5e/0x80
[   78.908816][   T73]      fib6_nh_init+0x3d8/0x1580
[   78.908816][   T73]      ip6_route_info_create+0xf18/0x17d0
[   78.908816][   T73]      ip6_route_add+0x1c/0x140
[   78.908816][   T73]      addrconf_prefix_route+0x2a6/0x430
[   78.908816][   T73]      inet6_addr_add+0x4f8/0xa40
[   78.908816][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   78.908816][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   78.908816][   T73]      netlink_rcv_skb+0x130/0x360
[   78.908816][   T73]      netlink_unicast+0x449/0x710
[   78.908816][   T73]      netlink_sendmsg+0x723/0xbe0
[   78.908816][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   78.908816][   T73]      ___sys_sendmsg+0xee/0x170
[   78.908816][   T73]      __sys_sendmsg+0xcd/0x170
[   78.908816][   T73]      do_syscall_64+0xc6/0x1e0
[   78.908816][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   78.908816][   T73] 
[   78.910897][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[   78.910897][   T73]      netdev_get_by_index+0x5e/0x80
[   78.910897][   T73]      fib6_nh_init+0x3d8/0x1580
[   78.910897][   T73]      ip6_route_info_create+0xf18/0x17d0
[   78.910897][   T73]      addrconf_f6i_alloc+0x315/0x560
[   78.910897][   T73]      ipv6_add_addr+0x411/0x2000
[   78.910897][   T73]      inet6_addr_add+0x30e/0xa40
[   78.910897][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   78.910897][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   78.910897][   T73]      netlink_rcv_skb+0x130/0x360
[   78.910897][   T73]      netlink_unicast+0x449/0x710
[   78.910897][   T73]      netlink_sendmsg+0x723/0xbe0
[   78.910897][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   78.910897][   T73]      ___sys_sendmsg+0xee/0x170
[   78.910897][   T73]      __sys_sendmsg+0xcd/0x170
[   78.910897][   T73]      do_syscall_64+0xc6/0x1e0
[   78.910897][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   78.910897][   T73] 
[   78.912962][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[   78.912962][   T73]      netdev_get_by_index+0x5e/0x80
[   78.912962][   T73]      fib6_nh_init+0x3d8/0x1580
[   78.912962][   T73]      ip6_route_info_create+0xf18/0x17d0
[   78.912962][   T73]      ip6_route_add+0x1c/0x140
[   78.912962][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[   78.912962][   T73]      addrconf_add_dev+0xe2/0x170
[   78.912962][   T73]      inet6_addr_add+0x12f/0xa40
[   78.912962][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   78.912962][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   78.912962][   T73]      netlink_rcv_skb+0x130/0x360
[   78.912962][   T73]      netlink_unicast+0x449/0x710
[   78.912962][   T73]      netlink_sendmsg+0x723/0xbe0
[   78.912962][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   78.912962][   T73]      ___sys_sendmsg+0xee/0x170
[   78.912962][   T73]      __sys_sendmsg+0xcd/0x170
[   78.912962][   T73]      do_syscall_64+0xc6/0x1e0
[   78.912962][   T73] 
[   78.915025][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[   78.915025][   T73]      ipv6_add_dev+0x3ba/0x11c0
[   78.915025][   T73]      ipv6_find_idev+0x102/0x170
[   78.915025][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[   78.915025][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   78.915025][   T73]      netlink_rcv_skb+0x130/0x360
[   78.915025][   T73]      netlink_unicast+0x449/0x710
[   78.915025][   T73]      netlink_sendmsg+0x723/0xbe0
[   78.915025][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   78.915025][   T73]      ___sys_sendmsg+0xee/0x170
[   78.915025][   T73]      __sys_sendmsg+0xcd/0x170
[   78.915025][   T73]      do_syscall_64+0xc6/0x1e0
[   78.915025][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   78.915025][   T73] 
[   78.916669][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[   78.916669][   T73]      neigh_parms_alloc+0x1e5/0x510
[   78.916669][   T73]      ipv6_add_dev+0x2fe/0x11c0
[   78.916669][   T73]      ipv6_find_idev+0x102/0x170
[   78.916669][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[   78.916669][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   78.916669][   T73]      netlink_rcv_skb+0x130/0x360
[   78.916669][   T73]      netlink_unicast+0x449/0x710
[   78.916669][   T73]      netlink_sendmsg+0x723/0xbe0
[   78.916669][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   78.916669][   T73]      ___sys_sendmsg+0xee/0x170
[   78.916669][   T73]      __sys_sendmsg+0xcd/0x170
[   78.916669][   T73]      do_syscall_64+0xc6/0x1e0
[   78.916669][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   78.916669][   T73] 
[   78.918706][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[   78.919048][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[   78.919048][   T73]      netdev_get_by_index+0x5e/0x80
[   78.919048][   T73]      fib6_nh_init+0x3d8/0x1580
[   78.919048][   T73]      ip6_route_info_create+0xf18/0x17d0
[   78.919048][   T73]      addrconf_f6i_alloc+0x265/0x560
[   78.919048][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[   78.919048][   T73]      addrconf_join_anycast+0x1c0/0x220
[   78.919048][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[   78.919048][   T73]      addrconf_dad_completed+0x12b/0xe20
[   78.919048][   T73]      addrconf_dad_begin+0x310/0x670
[   78.919048][   T73]      addrconf_dad_work+0x10b/0xab0
[   78.919048][   T73]      process_one_work+0x84d/0x18a0
[   78.919048][   T73]      worker_thread+0x587/0xd30
[   78.919048][   T73]      kthread+0x28a/0x350
[   78.919048][   T73]      ret_from_fork+0x31/0x70
[   78.919048][   T73]      ret_from_fork_asm+0x1a/0x30
[   78.919048][   T73] 
[   78.921175][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[   78.921175][   T73]      netdev_get_by_index+0x5e/0x80
[   78.921175][   T73]      fib6_nh_init+0x3d8/0x1580
[   78.921175][   T73]      ip6_route_info_create+0xf18/0x17d0
[   78.921175][   T73]      ip6_route_add+0x1c/0x140
[   78.921175][   T73]      addrconf_prefix_route+0x2a6/0x430
[   78.921175][   T73]      inet6_addr_add+0x4f8/0xa40
[   78.921175][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   78.921175][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   78.921175][   T73]      netlink_rcv_skb+0x130/0x360
[   78.921175][   T73]      netlink_unicast+0x449/0x710
[   78.921175][   T73]      netlink_sendmsg+0x723/0xbe0
[   78.921175][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   78.921175][   T73]      ___sys_sendmsg+0xee/0x170
[   78.921175][   T73]      __sys_sendmsg+0xcd/0x170
[   78.921175][   T73]      do_syscall_64+0xc6/0x1e0
[   78.921175][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   78.921175][   T73] 
[   78.923580][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[   78.923580][   T73]      netdev_get_by_index+0x5e/0x80
[   78.923580][   T73]      fib6_nh_init+0x3d8/0x1580
[   78.923580][   T73]      ip6_route_info_create+0xf18/0x17d0
[   78.923580][   T73]      addrconf_f6i_alloc+0x315/0x560
[   78.923580][   T73]      ipv6_add_addr+0x411/0x2000
[   78.923580][   T73]      inet6_addr_add+0x30e/0xa40
[   78.923580][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   78.923580][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   78.923580][   T73]      netlink_rcv_skb+0x130/0x360
[   78.923580][   T73]      netlink_unicast+0x449/0x710
[   78.923580][   T73]      netlink_sendmsg+0x723/0xbe0
[   78.923580][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   78.923580][   T73]      ___sys_sendmsg+0xee/0x170
[   78.923580][   T73]      __sys_sendmsg+0xcd/0x170
[   78.923580][   T73]      do_syscall_64+0xc6/0x1e0
[   78.923580][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   78.923580][   T73] 
[   78.926045][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[   78.926045][   T73]      netdev_get_by_index+0x5e/0x80
[   78.926045][   T73]      fib6_nh_init+0x3d8/0x1580
[   78.926045][   T73]      ip6_route_info_create+0xf18/0x17d0
[   78.926045][   T73]      ip6_route_add+0x1c/0x140
[   78.926045][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[   78.926045][   T73]      addrconf_add_dev+0xe2/0x170
[   78.926045][   T73]      inet6_addr_add+0x12f/0xa40
[   78.926045][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   78.926045][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   78.926045][   T73]      netlink_rcv_skb+0x130/0x360
[   78.926045][   T73]      netlink_unicast+0x449/0x710
[   78.926045][   T73]      netlink_sendmsg+0x723/0xbe0
[   78.926045][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   78.926045][   T73]      ___sys_sendmsg+0xee/0x170
[   78.926045][   T73]      __sys_sendmsg+0xcd/0x170
[   78.926045][   T73]      do_syscall_64+0xc6/0x1e0
[   78.926045][   T73] 
[   78.928630][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[   78.928630][   T73]      ipv6_add_dev+0x3ba/0x11c0
[   78.928630][   T73]      ipv6_find_idev+0x102/0x170
[   78.928630][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[   78.928630][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   78.928630][   T73]      netlink_rcv_skb+0x130/0x360
[   78.928630][   T73]      netlink_unicast+0x449/0x710
[   78.928630][   T73]      netlink_sendmsg+0x723/0xbe0
[   78.928630][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   78.928630][   T73]      ___sys_sendmsg+0xee/0x170
[   78.928630][   T73]      __sys_sendmsg+0xcd/0x170
[   78.928630][   T73]      do_syscall_64+0xc6/0x1e0
[   78.928630][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   78.928630][   T73] 
[   78.930565][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[   78.930565][   T73]      neigh_parms_alloc+0x1e5/0x510
[   78.930565][   T73]      ipv6_add_dev+0x2fe/0x11c0
[   78.930565][   T73]      ipv6_find_idev+0x102/0x170
[   78.930565][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[   78.930565][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   78.930565][   T73]      netlink_rcv_skb+0x130/0x360
[   78.930565][   T73]      netlink_unicast+0x449/0x710
[   78.930565][   T73]      netlink_sendmsg+0x723/0xbe0
[   78.930565][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   78.930565][   T73]      ___sys_sendmsg+0xee/0x170
[   78.930565][   T73]      __sys_sendmsg+0xcd/0x170
[   78.930565][   T73]      do_syscall_64+0xc6/0x1e0
[   78.930565][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   78.930565][   T73] 
[   78.932798][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[   78.933109][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[   78.933109][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[   78.933109][   T73]      ip6_validate_gw+0x3f7/0x7b0
[   78.933109][   T73]      fib6_nh_init+0xa22/0x1580
[   78.933109][   T73]      ip6_route_info_create+0xf18/0x17d0
[   78.933109][   T73]      ip6_route_add+0x1c/0x140
[   78.933109][   T73]      inet6_rtm_newroute+0x104/0x110
[   78.933109][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   78.933109][   T73]      netlink_rcv_skb+0x130/0x360
[   78.933109][   T73]      netlink_unicast+0x449/0x710
[   78.933109][   T73]      netlink_sendmsg+0x723/0xbe0
[   78.933109][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   78.933109][   T73]      ___sys_sendmsg+0xee/0x170
[   78.933109][   T73]      __sys_sendmsg+0xcd/0x170
[   78.933109][   T73]      do_syscall_64+0xc6/0x1e0
[   78.933109][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   78.933109][   T73] 
[   78.935351][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[   78.935351][   T73]      dst_init+0x84/0x4a0
[   78.935351][   T73]      dst_alloc+0x97/0x150
[   78.935351][   T73]      ip6_dst_alloc+0x23/0x90
[   78.935351][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[   78.935351][   T73]      ip6_pol_route+0x56f/0x840
[   78.935351][   T73]      fib6_rule_lookup+0x456/0x630
[   78.935351][   T73]      ip6_route_input+0x59c/0xa50
[   78.935351][   T73]      ipv6_rcv+0x397/0x810
[   78.935351][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[   78.935351][   T73]      process_backlog+0x101/0x620
[   78.935351][   T73]      __napi_poll.constprop.0+0xa2/0x460
[   78.935351][   T73]      net_rx_action+0x495/0xbe0
[   78.935351][   T73]      __do_softirq+0x1b5/0x7f6
[   78.935351][   T73] 
[   78.937279][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[   78.937279][   T73]      netdev_get_by_index+0x5e/0x80
[   78.937279][   T73]      fib6_nh_init+0x3d8/0x1580
[   78.937279][   T73]      ip6_route_info_create+0xf18/0x17d0
[   78.937279][   T73]      ip6_route_add+0x1c/0x140
[   78.937279][   T73]      addrconf_prefix_route+0x2a6/0x430
[   78.937279][   T73]      inet6_addr_add+0x4f8/0xa40
[   78.937279][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   78.937279][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   78.937279][   T73]      netlink_rcv_skb+0x130/0x360
[   78.937279][   T73]      netlink_unicast+0x449/0x710
[   78.937279][   T73]      netlink_sendmsg+0x723/0xbe0
[   78.937279][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   78.937279][   T73]      ___sys_sendmsg+0xee/0x170
[   78.937279][   T73]      __sys_sendmsg+0xcd/0x170
[   78.937279][   T73]      do_syscall_64+0xc6/0x1e0
[   78.937279][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   78.937279][   T73] 
[   78.939772][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[   78.939772][   T73]      netdev_get_by_index+0x5e/0x80
[   78.939772][   T73]      fib6_nh_init+0x3d8/0x1580
[   78.939772][   T73]      ip6_route_info_create+0xf18/0x17d0
[   78.939772][   T73]      addrconf_f6i_alloc+0x315/0x560
[   78.939772][   T73]      ipv6_add_addr+0x411/0x2000
[   78.939772][   T73]      inet6_addr_add+0x30e/0xa40
[   78.939772][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   78.939772][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   78.939772][   T73]      netlink_rcv_skb+0x130/0x360
[   78.939772][   T73]      netlink_unicast+0x449/0x710
[   78.939772][   T73]      netlink_sendmsg+0x723/0xbe0
[   78.939772][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   78.939772][   T73]      ___sys_sendmsg+0xee/0x170
[   78.939772][   T73]      __sys_sendmsg+0xcd/0x170
[   78.939772][   T73]      do_syscall_64+0xc6/0x1e0
[   78.939772][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   78.939772][   T73] 
[   78.942387][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[   78.942387][   T73]      netdev_get_by_index+0x5e/0x80
[   78.942387][   T73]      fib6_nh_init+0x3d8/0x1580
[   78.942387][   T73]      ip6_route_info_create+0xf18/0x17d0
[   78.942387][   T73]      ip6_route_add+0x1c/0x140
[   78.942387][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[   78.942387][   T73]      addrconf_add_dev+0xe2/0x170
[   78.942387][   T73]      inet6_addr_add+0x12f/0xa40
[   78.942387][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   78.942387][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   78.942387][   T73]      netlink_rcv_skb+0x130/0x360
[   78.942387][   T73]      netlink_unicast+0x449/0x710
[   78.942387][   T73]      netlink_sendmsg+0x723/0xbe0
[   78.942387][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   78.942387][   T73]      ___sys_sendmsg+0xee/0x170
[   78.942387][   T73]      __sys_sendmsg+0xcd/0x170
[   78.942387][   T73]      do_syscall_64+0xc6/0x1e0
[   78.942387][   T73] 
[   78.944805][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[   78.944805][   T73]      ipv6_add_dev+0x3ba/0x11c0
[   78.944805][   T73]      ipv6_find_idev+0x102/0x170
[   78.944805][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[   78.944805][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   78.944805][   T73]      netlink_rcv_skb+0x130/0x360
[   78.944805][   T73]      netlink_unicast+0x449/0x710
[   78.944805][   T73]      netlink_sendmsg+0x723/0xbe0
[   78.944805][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   78.944805][   T73]      ___sys_sendmsg+0xee/0x170
[   78.944805][   T73]      __sys_sendmsg+0xcd/0x170
[   78.944805][   T73]      do_syscall_64+0xc6/0x1e0
[   78.944805][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   78.944805][   T73] 
[   78.946784][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[   78.946784][   T73]      neigh_parms_alloc+0x1e5/0x510
[   78.946784][   T73]      ipv6_add_dev+0x2fe/0x11c0
[   78.946784][   T73]      ipv6_find_idev+0x102/0x170
[   78.946784][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[   78.946784][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   78.946784][   T73]      netlink_rcv_skb+0x130/0x360
[   78.946784][   T73]      netlink_unicast+0x449/0x710
[   78.946784][   T73]      netlink_sendmsg+0x723/0xbe0
[   78.946784][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   78.946784][   T73]      ___sys_sendmsg+0xee/0x170
[   78.946784][   T73]      __sys_sendmsg+0xcd/0x170
[   78.946784][   T73]      do_syscall_64+0xc6/0x1e0
[   78.946784][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   78.946784][   T73] 
[   78.949133][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[   78.949478][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[   78.949478][   T73]      netdev_get_by_index+0x5e/0x80
[   78.949478][   T73]      fib6_nh_init+0x3d8/0x1580
[   78.949478][   T73]      ip6_route_info_create+0xf18/0x17d0
[   78.949478][   T73]      addrconf_f6i_alloc+0x265/0x560
[   78.949478][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[   78.949478][   T73]      addrconf_join_anycast+0x1c0/0x220
[   78.949478][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[   78.949478][   T73]      addrconf_dad_completed+0x12b/0xe20
[   78.949478][   T73]      addrconf_dad_begin+0x310/0x670
[   78.949478][   T73]      addrconf_dad_work+0x10b/0xab0
[   78.949478][   T73]      process_one_work+0x84d/0x18a0
[   78.949478][   T73]      worker_thread+0x587/0xd30
[   78.949478][   T73]      kthread+0x28a/0x350
[   78.949478][   T73]      ret_from_fork+0x31/0x70
[   78.949478][   T73]      ret_from_fork_asm+0x1a/0x30
[   78.949478][   T73] 
[   78.951945][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[   78.951945][   T73]      netdev_get_by_index+0x5e/0x80
[   78.951945][   T73]      fib6_nh_init+0x3d8/0x1580
[   78.951945][   T73]      ip6_route_info_create+0xf18/0x17d0
[   78.951945][   T73]      ip6_route_add+0x1c/0x140
[   78.951945][   T73]      addrconf_prefix_route+0x2a6/0x430
[   78.951945][   T73]      inet6_addr_add+0x4f8/0xa40
[   78.951945][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   78.951945][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   78.951945][   T73]      netlink_rcv_skb+0x130/0x360
[   78.951945][   T73]      netlink_unicast+0x449/0x710
[   78.951945][   T73]      netlink_sendmsg+0x723/0xbe0
[   78.951945][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   78.951945][   T73]      ___sys_sendmsg+0xee/0x170
[   78.951945][   T73]      __sys_sendmsg+0xcd/0x170
[   78.951945][   T73]      do_syscall_64+0xc6/0x1e0
[   78.951945][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   78.951945][   T73] 
[   78.954403][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[   78.954403][   T73]      netdev_get_by_index+0x5e/0x80
[   78.954403][   T73]      fib6_nh_init+0x3d8/0x1580
[   78.954403][   T73]      ip6_route_info_create+0xf18/0x17d0
[   78.954403][   T73]      addrconf_f6i_alloc+0x315/0x560
[   78.954403][   T73]      ipv6_add_addr+0x411/0x2000
[   78.954403][   T73]      inet6_addr_add+0x30e/0xa40
[   78.954403][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   78.954403][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   78.954403][   T73]      netlink_rcv_skb+0x130/0x360
[   78.954403][   T73]      netlink_unicast+0x449/0x710
[   78.954403][   T73]      netlink_sendmsg+0x723/0xbe0
[   78.954403][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   78.954403][   T73]      ___sys_sendmsg+0xee/0x170
[   78.954403][   T73]      __sys_sendmsg+0xcd/0x170
[   78.954403][   T73]      do_syscall_64+0xc6/0x1e0
[   78.954403][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   78.954403][   T73] 
[   78.956831][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[   78.956831][   T73]      netdev_get_by_index+0x5e/0x80
[   78.956831][   T73]      fib6_nh_init+0x3d8/0x1580
[   78.956831][   T73]      ip6_route_info_create+0xf18/0x17d0
[   78.956831][   T73]      ip6_route_add+0x1c/0x140
[   78.956831][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[   78.956831][   T73]      addrconf_add_dev+0xe2/0x170
[   78.956831][   T73]      inet6_addr_add+0x12f/0xa40
[   78.956831][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   78.956831][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   78.956831][   T73]      netlink_rcv_skb+0x130/0x360
[   78.956831][   T73]      netlink_unicast+0x449/0x710
[   78.956831][   T73]      netlink_sendmsg+0x723/0xbe0
[   78.956831][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   78.956831][   T73]      ___sys_sendmsg+0xee/0x170
[   78.956831][   T73]      __sys_sendmsg+0xcd/0x170
[   78.956831][   T73]      do_syscall_64+0xc6/0x1e0
[   78.956831][   T73] 
[   78.959131][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[   78.959131][   T73]      ipv6_add_dev+0x3ba/0x11c0
[   78.959131][   T73]      ipv6_find_idev+0x102/0x170
[   78.959131][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[   78.959131][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   78.959131][   T73]      netlink_rcv_skb+0x130/0x360
[   78.959131][   T73]      netlink_unicast+0x449/0x710
[   78.959131][   T73]      netlink_sendmsg+0x723/0xbe0
[   78.959131][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   78.959131][   T73]      ___sys_sendmsg+0xee/0x170
[   78.959131][   T73]      __sys_sendmsg+0xcd/0x170
[   78.959131][   T73]      do_syscall_64+0xc6/0x1e0
[   78.959131][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   78.959131][   T73] 
[   78.960911][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[   78.960911][   T73]      neigh_parms_alloc+0x1e5/0x510
[   78.960911][   T73]      ipv6_add_dev+0x2fe/0x11c0
[   78.960911][   T73]      ipv6_find_idev+0x102/0x170
[   78.960911][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[   78.960911][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   78.960911][   T73]      netlink_rcv_skb+0x130/0x360
[   78.960911][   T73]      netlink_unicast+0x449/0x710
[   78.960911][   T73]      netlink_sendmsg+0x723/0xbe0
[   78.960911][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   78.960911][   T73]      ___sys_sendmsg+0xee/0x170
[   78.960911][   T73]      __sys_sendmsg+0xcd/0x170
[   78.960911][   T73]      do_syscall_64+0xc6/0x1e0
[   78.960911][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   78.960911][   T73] 
[   89.071706][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[   89.072237][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[   89.072237][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[   89.072237][   T73]      ip6_validate_gw+0x3f7/0x7b0
[   89.072237][   T73]      fib6_nh_init+0xa22/0x1580
[   89.072237][   T73]      ip6_route_info_create+0xf18/0x17d0
[   89.072237][   T73]      ip6_route_add+0x1c/0x140
[   89.072237][   T73]      inet6_rtm_newroute+0x104/0x110
[   89.072237][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   89.072237][   T73]      netlink_rcv_skb+0x130/0x360
[   89.072237][   T73]      netlink_unicast+0x449/0x710
[   89.072237][   T73]      netlink_sendmsg+0x723/0xbe0
[   89.072237][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   89.072237][   T73]      ___sys_sendmsg+0xee/0x170
[   89.072237][   T73]      __sys_sendmsg+0xcd/0x170
[   89.072237][   T73]      do_syscall_64+0xc6/0x1e0
[   89.072237][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   89.072237][   T73] 
[   89.075424][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[   89.075424][   T73]      dst_init+0x84/0x4a0
[   89.075424][   T73]      dst_alloc+0x97/0x150
[   89.075424][   T73]      ip6_dst_alloc+0x23/0x90
[   89.075424][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[   89.075424][   T73]      ip6_pol_route+0x56f/0x840
[   89.075424][   T73]      fib6_rule_lookup+0x456/0x630
[   89.075424][   T73]      ip6_route_input+0x59c/0xa50
[   89.075424][   T73]      ipv6_rcv+0x397/0x810
[   89.075424][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[   89.075424][   T73]      process_backlog+0x101/0x620
[   89.075424][   T73]      __napi_poll.constprop.0+0xa2/0x460
[   89.075424][   T73]      net_rx_action+0x495/0xbe0
[   89.075424][   T73]      __do_softirq+0x1b5/0x7f6
[   89.075424][   T73] 
[   89.078088][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[   89.078088][   T73]      netdev_get_by_index+0x5e/0x80
[   89.078088][   T73]      fib6_nh_init+0x3d8/0x1580
[   89.078088][   T73]      ip6_route_info_create+0xf18/0x17d0
[   89.078088][   T73]      ip6_route_add+0x1c/0x140
[   89.078088][   T73]      addrconf_prefix_route+0x2a6/0x430
[   89.078088][   T73]      inet6_addr_add+0x4f8/0xa40
[   89.078088][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   89.078088][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   89.078088][   T73]      netlink_rcv_skb+0x130/0x360
[   89.078088][   T73]      netlink_unicast+0x449/0x710
[   89.078088][   T73]      netlink_sendmsg+0x723/0xbe0
[   89.078088][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   89.078088][   T73]      ___sys_sendmsg+0xee/0x170
[   89.078088][   T73]      __sys_sendmsg+0xcd/0x170
[   89.078088][   T73]      do_syscall_64+0xc6/0x1e0
[   89.078088][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   89.078088][   T73] 
[   89.081438][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[   89.081438][   T73]      netdev_get_by_index+0x5e/0x80
[   89.081438][   T73]      fib6_nh_init+0x3d8/0x1580
[   89.081438][   T73]      ip6_route_info_create+0xf18/0x17d0
[   89.081438][   T73]      addrconf_f6i_alloc+0x315/0x560
[   89.081438][   T73]      ipv6_add_addr+0x411/0x2000
[   89.081438][   T73]      inet6_addr_add+0x30e/0xa40
[   89.081438][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   89.081438][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   89.081438][   T73]      netlink_rcv_skb+0x130/0x360
[   89.081438][   T73]      netlink_unicast+0x449/0x710
[   89.081438][   T73]      netlink_sendmsg+0x723/0xbe0
[   89.081438][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   89.081438][   T73]      ___sys_sendmsg+0xee/0x170
[   89.081438][   T73]      __sys_sendmsg+0xcd/0x170
[   89.081438][   T73]      do_syscall_64+0xc6/0x1e0
[   89.081438][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   89.081438][   T73] 
[   89.084658][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[   89.084658][   T73]      netdev_get_by_index+0x5e/0x80
[   89.084658][   T73]      fib6_nh_init+0x3d8/0x1580
[   89.084658][   T73]      ip6_route_info_create+0xf18/0x17d0
[   89.084658][   T73]      ip6_route_add+0x1c/0x140
[   89.084658][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[   89.084658][   T73]      addrconf_add_dev+0xe2/0x170
[   89.084658][   T73]      inet6_addr_add+0x12f/0xa40
[   89.084658][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   89.084658][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   89.084658][   T73]      netlink_rcv_skb+0x130/0x360
[   89.084658][   T73]      netlink_unicast+0x449/0x710
[   89.084658][   T73]      netlink_sendmsg+0x723/0xbe0
[   89.084658][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   89.084658][   T73]      ___sys_sendmsg+0xee/0x170
[   89.084658][   T73]      __sys_sendmsg+0xcd/0x170
[   89.084658][   T73]      do_syscall_64+0xc6/0x1e0
[   89.084658][   T73] 
[   89.087817][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[   89.087817][   T73]      ipv6_add_dev+0x3ba/0x11c0
[   89.087817][   T73]      ipv6_find_idev+0x102/0x170
[   89.087817][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[   89.087817][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   89.087817][   T73]      netlink_rcv_skb+0x130/0x360
[   89.087817][   T73]      netlink_unicast+0x449/0x710
[   89.087817][   T73]      netlink_sendmsg+0x723/0xbe0
[   89.087817][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   89.087817][   T73]      ___sys_sendmsg+0xee/0x170
[   89.087817][   T73]      __sys_sendmsg+0xcd/0x170
[   89.087817][   T73]      do_syscall_64+0xc6/0x1e0
[   89.087817][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   89.087817][   T73] 
[   89.090335][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[   89.090335][   T73]      neigh_parms_alloc+0x1e5/0x510
[   89.090335][   T73]      ipv6_add_dev+0x2fe/0x11c0
[   89.090335][   T73]      ipv6_find_idev+0x102/0x170
[   89.090335][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[   89.090335][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   89.090335][   T73]      netlink_rcv_skb+0x130/0x360
[   89.090335][   T73]      netlink_unicast+0x449/0x710
[   89.090335][   T73]      netlink_sendmsg+0x723/0xbe0
[   89.090335][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   89.090335][   T73]      ___sys_sendmsg+0xee/0x170
[   89.090335][   T73]      __sys_sendmsg+0xcd/0x170
[   89.090335][   T73]      do_syscall_64+0xc6/0x1e0
[   89.090335][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   89.090335][   T73] 
[   89.093316][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[   89.093809][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[   89.093809][   T73]      netdev_get_by_index+0x5e/0x80
[   89.093809][   T73]      fib6_nh_init+0x3d8/0x1580
[   89.093809][   T73]      ip6_route_info_create+0xf18/0x17d0
[   89.093809][   T73]      addrconf_f6i_alloc+0x265/0x560
[   89.093809][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[   89.093809][   T73]      addrconf_join_anycast+0x1c0/0x220
[   89.093809][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[   89.093809][   T73]      addrconf_dad_completed+0x12b/0xe20
[   89.093809][   T73]      addrconf_dad_begin+0x310/0x670
[   89.093809][   T73]      addrconf_dad_work+0x10b/0xab0
[   89.093809][   T73]      process_one_work+0x84d/0x18a0
[   89.093809][   T73]      worker_thread+0x587/0xd30
[   89.093809][   T73]      kthread+0x28a/0x350
[   89.093809][   T73]      ret_from_fork+0x31/0x70
[   89.093809][   T73]      ret_from_fork_asm+0x1a/0x30
[   89.093809][   T73] 
[   89.097385][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[   89.097385][   T73]      netdev_get_by_index+0x5e/0x80
[   89.097385][   T73]      fib6_nh_init+0x3d8/0x1580
[   89.097385][   T73]      ip6_route_info_create+0xf18/0x17d0
[   89.097385][   T73]      ip6_route_add+0x1c/0x140
[   89.097385][   T73]      addrconf_prefix_route+0x2a6/0x430
[   89.097385][   T73]      inet6_addr_add+0x4f8/0xa40
[   89.097385][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   89.097385][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   89.097385][   T73]      netlink_rcv_skb+0x130/0x360
[   89.097385][   T73]      netlink_unicast+0x449/0x710
[   89.097385][   T73]      netlink_sendmsg+0x723/0xbe0
[   89.097385][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   89.097385][   T73]      ___sys_sendmsg+0xee/0x170
[   89.097385][   T73]      __sys_sendmsg+0xcd/0x170
[   89.097385][   T73]      do_syscall_64+0xc6/0x1e0
[   89.097385][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   89.097385][   T73] 
[   89.100979][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[   89.100979][   T73]      netdev_get_by_index+0x5e/0x80
[   89.100979][   T73]      fib6_nh_init+0x3d8/0x1580
[   89.100979][   T73]      ip6_route_info_create+0xf18/0x17d0
[   89.100979][   T73]      addrconf_f6i_alloc+0x315/0x560
[   89.100979][   T73]      ipv6_add_addr+0x411/0x2000
[   89.100979][   T73]      inet6_addr_add+0x30e/0xa40
[   89.100979][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   89.100979][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   89.100979][   T73]      netlink_rcv_skb+0x130/0x360
[   89.100979][   T73]      netlink_unicast+0x449/0x710
[   89.100979][   T73]      netlink_sendmsg+0x723/0xbe0
[   89.100979][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   89.100979][   T73]      ___sys_sendmsg+0xee/0x170
[   89.100979][   T73]      __sys_sendmsg+0xcd/0x170
[   89.100979][   T73]      do_syscall_64+0xc6/0x1e0
[   89.100979][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   89.100979][   T73] 
[   89.104507][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[   89.104507][   T73]      netdev_get_by_index+0x5e/0x80
[   89.104507][   T73]      fib6_nh_init+0x3d8/0x1580
[   89.104507][   T73]      ip6_route_info_create+0xf18/0x17d0
[   89.104507][   T73]      ip6_route_add+0x1c/0x140
[   89.104507][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[   89.104507][   T73]      addrconf_add_dev+0xe2/0x170
[   89.104507][   T73]      inet6_addr_add+0x12f/0xa40
[   89.104507][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   89.104507][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   89.104507][   T73]      netlink_rcv_skb+0x130/0x360
[   89.104507][   T73]      netlink_unicast+0x449/0x710
[   89.104507][   T73]      netlink_sendmsg+0x723/0xbe0
[   89.104507][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   89.104507][   T73]      ___sys_sendmsg+0xee/0x170
[   89.104507][   T73]      __sys_sendmsg+0xcd/0x170
[   89.104507][   T73]      do_syscall_64+0xc6/0x1e0
[   89.104507][   T73] 
[   89.107711][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[   89.107711][   T73]      ipv6_add_dev+0x3ba/0x11c0
[   89.107711][   T73]      ipv6_find_idev+0x102/0x170
[   89.107711][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[   89.107711][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   89.107711][   T73]      netlink_rcv_skb+0x130/0x360
[   89.107711][   T73]      netlink_unicast+0x449/0x710
[   89.107711][   T73]      netlink_sendmsg+0x723/0xbe0
[   89.107711][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   89.107711][   T73]      ___sys_sendmsg+0xee/0x170
[   89.107711][   T73]      __sys_sendmsg+0xcd/0x170
[   89.107711][   T73]      do_syscall_64+0xc6/0x1e0
[   89.107711][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   89.107711][   T73] 
[   89.110411][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[   89.110411][   T73]      neigh_parms_alloc+0x1e5/0x510
[   89.110411][   T73]      ipv6_add_dev+0x2fe/0x11c0
[   89.110411][   T73]      ipv6_find_idev+0x102/0x170
[   89.110411][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[   89.110411][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   89.110411][   T73]      netlink_rcv_skb+0x130/0x360
[   89.110411][   T73]      netlink_unicast+0x449/0x710
[   89.110411][   T73]      netlink_sendmsg+0x723/0xbe0
[   89.110411][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   89.110411][   T73]      ___sys_sendmsg+0xee/0x170
[   89.110411][   T73]      __sys_sendmsg+0xcd/0x170
[   89.110411][   T73]      do_syscall_64+0xc6/0x1e0
[   89.110411][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   89.110411][   T73] 
[   89.113245][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[   89.113676][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[   89.113676][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[   89.113676][   T73]      ip6_validate_gw+0x3f7/0x7b0
[   89.113676][   T73]      fib6_nh_init+0xa22/0x1580
[   89.113676][   T73]      ip6_route_info_create+0xf18/0x17d0
[   89.113676][   T73]      ip6_route_add+0x1c/0x140
[   89.113676][   T73]      inet6_rtm_newroute+0x104/0x110
[   89.113676][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   89.113676][   T73]      netlink_rcv_skb+0x130/0x360
[   89.113676][   T73]      netlink_unicast+0x449/0x710
[   89.113676][   T73]      netlink_sendmsg+0x723/0xbe0
[   89.113676][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   89.113676][   T73]      ___sys_sendmsg+0xee/0x170
[   89.113676][   T73]      __sys_sendmsg+0xcd/0x170
[   89.113676][   T73]      do_syscall_64+0xc6/0x1e0
[   89.113676][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   89.113676][   T73] 
[   89.117052][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[   89.117052][   T73]      dst_init+0x84/0x4a0
[   89.117052][   T73]      dst_alloc+0x97/0x150
[   89.117052][   T73]      ip6_dst_alloc+0x23/0x90
[   89.117052][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[   89.117052][   T73]      ip6_pol_route+0x56f/0x840
[   89.117052][   T73]      fib6_rule_lookup+0x456/0x630
[   89.117052][   T73]      ip6_route_input+0x59c/0xa50
[   89.117052][   T73]      ipv6_rcv+0x397/0x810
[   89.117052][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[   89.117052][   T73]      process_backlog+0x101/0x620
[   89.117052][   T73]      __napi_poll.constprop.0+0xa2/0x460
[   89.117052][   T73]      net_rx_action+0x495/0xbe0
[   89.117052][   T73]      __do_softirq+0x1b5/0x7f6
[   89.117052][   T73] 
[   89.119851][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[   89.119851][   T73]      netdev_get_by_index+0x5e/0x80
[   89.119851][   T73]      fib6_nh_init+0x3d8/0x1580
[   89.119851][   T73]      ip6_route_info_create+0xf18/0x17d0
[   89.119851][   T73]      ip6_route_add+0x1c/0x140
[   89.119851][   T73]      addrconf_prefix_route+0x2a6/0x430
[   89.119851][   T73]      inet6_addr_add+0x4f8/0xa40
[   89.119851][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   89.119851][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   89.119851][   T73]      netlink_rcv_skb+0x130/0x360
[   89.119851][   T73]      netlink_unicast+0x449/0x710
[   89.119851][   T73]      netlink_sendmsg+0x723/0xbe0
[   89.119851][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   89.119851][   T73]      ___sys_sendmsg+0xee/0x170
[   89.119851][   T73]      __sys_sendmsg+0xcd/0x170
[   89.119851][   T73]      do_syscall_64+0xc6/0x1e0
[   89.119851][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   89.119851][   T73] 
[   89.123305][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[   89.123305][   T73]      netdev_get_by_index+0x5e/0x80
[   89.123305][   T73]      fib6_nh_init+0x3d8/0x1580
[   89.123305][   T73]      ip6_route_info_create+0xf18/0x17d0
[   89.123305][   T73]      addrconf_f6i_alloc+0x315/0x560
[   89.123305][   T73]      ipv6_add_addr+0x411/0x2000
[   89.123305][   T73]      inet6_addr_add+0x30e/0xa40
[   89.123305][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   89.123305][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   89.123305][   T73]      netlink_rcv_skb+0x130/0x360
[   89.123305][   T73]      netlink_unicast+0x449/0x710
[   89.123305][   T73]      netlink_sendmsg+0x723/0xbe0
[   89.123305][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   89.123305][   T73]      ___sys_sendmsg+0xee/0x170
[   89.123305][   T73]      __sys_sendmsg+0xcd/0x170
[   89.123305][   T73]      do_syscall_64+0xc6/0x1e0
[   89.123305][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   89.123305][   T73] 
[   89.126225][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[   89.126225][   T73]      netdev_get_by_index+0x5e/0x80
[   89.126225][   T73]      fib6_nh_init+0x3d8/0x1580
[   89.126225][   T73]      ip6_route_info_create+0xf18/0x17d0
[   89.126225][   T73]      ip6_route_add+0x1c/0x140
[   89.126225][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[   89.126225][   T73]      addrconf_add_dev+0xe2/0x170
[   89.126225][   T73]      inet6_addr_add+0x12f/0xa40
[   89.126225][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   89.126225][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   89.126225][   T73]      netlink_rcv_skb+0x130/0x360
[   89.126225][   T73]      netlink_unicast+0x449/0x710
[   89.126225][   T73]      netlink_sendmsg+0x723/0xbe0
[   89.126225][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   89.126225][   T73]      ___sys_sendmsg+0xee/0x170
[   89.126225][   T73]      __sys_sendmsg+0xcd/0x170
[   89.126225][   T73]      do_syscall_64+0xc6/0x1e0
[   89.126225][   T73] 
[   89.128591][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[   89.128591][   T73]      ipv6_add_dev+0x3ba/0x11c0
[   89.128591][   T73]      ipv6_find_idev+0x102/0x170
[   89.128591][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[   89.128591][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   89.128591][   T73]      netlink_rcv_skb+0x130/0x360
[   89.128591][   T73]      netlink_unicast+0x449/0x710
[   89.128591][   T73]      netlink_sendmsg+0x723/0xbe0
[   89.128591][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   89.128591][   T73]      ___sys_sendmsg+0xee/0x170
[   89.128591][   T73]      __sys_sendmsg+0xcd/0x170
[   89.128591][   T73]      do_syscall_64+0xc6/0x1e0
[   89.128591][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   89.128591][   T73] 
[   89.130355][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[   89.130355][   T73]      neigh_parms_alloc+0x1e5/0x510
[   89.130355][   T73]      ipv6_add_dev+0x2fe/0x11c0
[   89.130355][   T73]      ipv6_find_idev+0x102/0x170
[   89.130355][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[   89.130355][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   89.130355][   T73]      netlink_rcv_skb+0x130/0x360
[   89.130355][   T73]      netlink_unicast+0x449/0x710
[   89.130355][   T73]      netlink_sendmsg+0x723/0xbe0
[   89.130355][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   89.130355][   T73]      ___sys_sendmsg+0xee/0x170
[   89.130355][   T73]      __sys_sendmsg+0xcd/0x170
[   89.130355][   T73]      do_syscall_64+0xc6/0x1e0
[   89.130355][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   89.130355][   T73] 
[   89.132351][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[   89.133088][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[   89.133088][   T73]      netdev_get_by_index+0x5e/0x80
[   89.133088][   T73]      fib6_nh_init+0x3d8/0x1580
[   89.133088][   T73]      ip6_route_info_create+0xf18/0x17d0
[   89.133088][   T73]      addrconf_f6i_alloc+0x265/0x560
[   89.133088][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[   89.133088][   T73]      addrconf_join_anycast+0x1c0/0x220
[   89.133088][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[   89.133088][   T73]      addrconf_dad_completed+0x12b/0xe20
[   89.133088][   T73]      addrconf_dad_begin+0x310/0x670
[   89.133088][   T73]      addrconf_dad_work+0x10b/0xab0
[   89.133088][   T73]      process_one_work+0x84d/0x18a0
[   89.133088][   T73]      worker_thread+0x587/0xd30
[   89.133088][   T73]      kthread+0x28a/0x350
[   89.133088][   T73]      ret_from_fork+0x31/0x70
[   89.133088][   T73]      ret_from_fork_asm+0x1a/0x30
[   89.133088][   T73] 
[   89.135275][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[   89.135275][   T73]      netdev_get_by_index+0x5e/0x80
[   89.135275][   T73]      fib6_nh_init+0x3d8/0x1580
[   89.135275][   T73]      ip6_route_info_create+0xf18/0x17d0
[   89.135275][   T73]      ip6_route_add+0x1c/0x140
[   89.135275][   T73]      addrconf_prefix_route+0x2a6/0x430
[   89.135275][   T73]      inet6_addr_add+0x4f8/0xa40
[   89.135275][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   89.135275][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   89.135275][   T73]      netlink_rcv_skb+0x130/0x360
[   89.135275][   T73]      netlink_unicast+0x449/0x710
[   89.135275][   T73]      netlink_sendmsg+0x723/0xbe0
[   89.135275][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   89.135275][   T73]      ___sys_sendmsg+0xee/0x170
[   89.135275][   T73]      __sys_sendmsg+0xcd/0x170
[   89.135275][   T73]      do_syscall_64+0xc6/0x1e0
[   89.135275][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   89.135275][   T73] 
[   89.137622][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[   89.137622][   T73]      netdev_get_by_index+0x5e/0x80
[   89.137622][   T73]      fib6_nh_init+0x3d8/0x1580
[   89.137622][   T73]      ip6_route_info_create+0xf18/0x17d0
[   89.137622][   T73]      addrconf_f6i_alloc+0x315/0x560
[   89.137622][   T73]      ipv6_add_addr+0x411/0x2000
[   89.137622][   T73]      inet6_addr_add+0x30e/0xa40
[   89.137622][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   89.137622][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   89.137622][   T73]      netlink_rcv_skb+0x130/0x360
[   89.137622][   T73]      netlink_unicast+0x449/0x710
[   89.137622][   T73]      netlink_sendmsg+0x723/0xbe0
[   89.137622][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   89.137622][   T73]      ___sys_sendmsg+0xee/0x170
[   89.137622][   T73]      __sys_sendmsg+0xcd/0x170
[   89.137622][   T73]      do_syscall_64+0xc6/0x1e0
[   89.137622][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   89.137622][   T73] 
[   89.139943][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[   89.139943][   T73]      netdev_get_by_index+0x5e/0x80
[   89.139943][   T73]      fib6_nh_init+0x3d8/0x1580
[   89.139943][   T73]      ip6_route_info_create+0xf18/0x17d0
[   89.139943][   T73]      ip6_route_add+0x1c/0x140
[   89.139943][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[   89.139943][   T73]      addrconf_add_dev+0xe2/0x170
[   89.139943][   T73]      inet6_addr_add+0x12f/0xa40
[   89.139943][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   89.139943][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   89.139943][   T73]      netlink_rcv_skb+0x130/0x360
[   89.139943][   T73]      netlink_unicast+0x449/0x710
[   89.139943][   T73]      netlink_sendmsg+0x723/0xbe0
[   89.139943][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   89.139943][   T73]      ___sys_sendmsg+0xee/0x170
[   89.139943][   T73]      __sys_sendmsg+0xcd/0x170
[   89.139943][   T73]      do_syscall_64+0xc6/0x1e0
[   89.139943][   T73] 
[   89.142344][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[   89.142344][   T73]      ipv6_add_dev+0x3ba/0x11c0
[   89.142344][   T73]      ipv6_find_idev+0x102/0x170
[   89.142344][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[   89.142344][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   89.142344][   T73]      netlink_rcv_skb+0x130/0x360
[   89.142344][   T73]      netlink_unicast+0x449/0x710
[   89.142344][   T73]      netlink_sendmsg+0x723/0xbe0
[   89.142344][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   89.142344][   T73]      ___sys_sendmsg+0xee/0x170
[   89.142344][   T73]      __sys_sendmsg+0xcd/0x170
[   89.142344][   T73]      do_syscall_64+0xc6/0x1e0
[   89.142344][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   89.142344][   T73] 
[   89.144155][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[   89.144155][   T73]      neigh_parms_alloc+0x1e5/0x510
[   89.144155][   T73]      ipv6_add_dev+0x2fe/0x11c0
[   89.144155][   T73]      ipv6_find_idev+0x102/0x170
[   89.144155][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[   89.144155][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   89.144155][   T73]      netlink_rcv_skb+0x130/0x360
[   89.144155][   T73]      netlink_unicast+0x449/0x710
[   89.144155][   T73]      netlink_sendmsg+0x723/0xbe0
[   89.144155][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   89.144155][   T73]      ___sys_sendmsg+0xee/0x170
[   89.144155][   T73]      __sys_sendmsg+0xcd/0x170
[   89.144155][   T73]      do_syscall_64+0xc6/0x1e0
[   89.144155][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   89.144155][   T73] 
[   99.255686][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[   99.256196][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[   99.256196][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[   99.256196][   T73]      ip6_validate_gw+0x3f7/0x7b0
[   99.256196][   T73]      fib6_nh_init+0xa22/0x1580
[   99.256196][   T73]      ip6_route_info_create+0xf18/0x17d0
[   99.256196][   T73]      ip6_route_add+0x1c/0x140
[   99.256196][   T73]      inet6_rtm_newroute+0x104/0x110
[   99.256196][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   99.256196][   T73]      netlink_rcv_skb+0x130/0x360
[   99.256196][   T73]      netlink_unicast+0x449/0x710
[   99.256196][   T73]      netlink_sendmsg+0x723/0xbe0
[   99.256196][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   99.256196][   T73]      ___sys_sendmsg+0xee/0x170
[   99.256196][   T73]      __sys_sendmsg+0xcd/0x170
[   99.256196][   T73]      do_syscall_64+0xc6/0x1e0
[   99.256196][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   99.256196][   T73] 
[   99.259155][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[   99.259155][   T73]      dst_init+0x84/0x4a0
[   99.259155][   T73]      dst_alloc+0x97/0x150
[   99.259155][   T73]      ip6_dst_alloc+0x23/0x90
[   99.259155][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[   99.259155][   T73]      ip6_pol_route+0x56f/0x840
[   99.259155][   T73]      fib6_rule_lookup+0x456/0x630
[   99.259155][   T73]      ip6_route_input+0x59c/0xa50
[   99.259155][   T73]      ipv6_rcv+0x397/0x810
[   99.259155][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[   99.259155][   T73]      process_backlog+0x101/0x620
[   99.259155][   T73]      __napi_poll.constprop.0+0xa2/0x460
[   99.259155][   T73]      net_rx_action+0x495/0xbe0
[   99.259155][   T73]      __do_softirq+0x1b5/0x7f6
[   99.259155][   T73] 
[   99.261682][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[   99.261682][   T73]      netdev_get_by_index+0x5e/0x80
[   99.261682][   T73]      fib6_nh_init+0x3d8/0x1580
[   99.261682][   T73]      ip6_route_info_create+0xf18/0x17d0
[   99.261682][   T73]      ip6_route_add+0x1c/0x140
[   99.261682][   T73]      addrconf_prefix_route+0x2a6/0x430
[   99.261682][   T73]      inet6_addr_add+0x4f8/0xa40
[   99.261682][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   99.261682][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   99.261682][   T73]      netlink_rcv_skb+0x130/0x360
[   99.261682][   T73]      netlink_unicast+0x449/0x710
[   99.261682][   T73]      netlink_sendmsg+0x723/0xbe0
[   99.261682][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   99.261682][   T73]      ___sys_sendmsg+0xee/0x170
[   99.261682][   T73]      __sys_sendmsg+0xcd/0x170
[   99.261682][   T73]      do_syscall_64+0xc6/0x1e0
[   99.261682][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   99.261682][   T73] 
[   99.263850][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[   99.263850][   T73]      netdev_get_by_index+0x5e/0x80
[   99.263850][   T73]      fib6_nh_init+0x3d8/0x1580
[   99.263850][   T73]      ip6_route_info_create+0xf18/0x17d0
[   99.263850][   T73]      addrconf_f6i_alloc+0x315/0x560
[   99.263850][   T73]      ipv6_add_addr+0x411/0x2000
[   99.263850][   T73]      inet6_addr_add+0x30e/0xa40
[   99.263850][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   99.263850][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   99.263850][   T73]      netlink_rcv_skb+0x130/0x360
[   99.263850][   T73]      netlink_unicast+0x449/0x710
[   99.263850][   T73]      netlink_sendmsg+0x723/0xbe0
[   99.263850][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   99.263850][   T73]      ___sys_sendmsg+0xee/0x170
[   99.263850][   T73]      __sys_sendmsg+0xcd/0x170
[   99.263850][   T73]      do_syscall_64+0xc6/0x1e0
[   99.263850][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   99.263850][   T73] 
[   99.265907][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[   99.265907][   T73]      netdev_get_by_index+0x5e/0x80
[   99.265907][   T73]      fib6_nh_init+0x3d8/0x1580
[   99.265907][   T73]      ip6_route_info_create+0xf18/0x17d0
[   99.265907][   T73]      ip6_route_add+0x1c/0x140
[   99.265907][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[   99.265907][   T73]      addrconf_add_dev+0xe2/0x170
[   99.265907][   T73]      inet6_addr_add+0x12f/0xa40
[   99.265907][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   99.265907][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   99.265907][   T73]      netlink_rcv_skb+0x130/0x360
[   99.265907][   T73]      netlink_unicast+0x449/0x710
[   99.265907][   T73]      netlink_sendmsg+0x723/0xbe0
[   99.265907][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   99.265907][   T73]      ___sys_sendmsg+0xee/0x170
[   99.265907][   T73]      __sys_sendmsg+0xcd/0x170
[   99.265907][   T73]      do_syscall_64+0xc6/0x1e0
[   99.265907][   T73] 
[   99.267898][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[   99.267898][   T73]      ipv6_add_dev+0x3ba/0x11c0
[   99.267898][   T73]      ipv6_find_idev+0x102/0x170
[   99.267898][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[   99.267898][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   99.267898][   T73]      netlink_rcv_skb+0x130/0x360
[   99.267898][   T73]      netlink_unicast+0x449/0x710
[   99.267898][   T73]      netlink_sendmsg+0x723/0xbe0
[   99.267898][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   99.267898][   T73]      ___sys_sendmsg+0xee/0x170
[   99.267898][   T73]      __sys_sendmsg+0xcd/0x170
[   99.267898][   T73]      do_syscall_64+0xc6/0x1e0
[   99.267898][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   99.267898][   T73] 
[   99.269463][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[   99.269463][   T73]      neigh_parms_alloc+0x1e5/0x510
[   99.269463][   T73]      ipv6_add_dev+0x2fe/0x11c0
[   99.269463][   T73]      ipv6_find_idev+0x102/0x170
[   99.269463][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[   99.269463][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   99.269463][   T73]      netlink_rcv_skb+0x130/0x360
[   99.269463][   T73]      netlink_unicast+0x449/0x710
[   99.269463][   T73]      netlink_sendmsg+0x723/0xbe0
[   99.269463][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   99.269463][   T73]      ___sys_sendmsg+0xee/0x170
[   99.269463][   T73]      __sys_sendmsg+0xcd/0x170
[   99.269463][   T73]      do_syscall_64+0xc6/0x1e0
[   99.269463][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   99.269463][   T73] 
[   99.271417][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[   99.271864][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[   99.271864][   T73]      netdev_get_by_index+0x5e/0x80
[   99.271864][   T73]      fib6_nh_init+0x3d8/0x1580
[   99.271864][   T73]      ip6_route_info_create+0xf18/0x17d0
[   99.271864][   T73]      addrconf_f6i_alloc+0x265/0x560
[   99.271864][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[   99.271864][   T73]      addrconf_join_anycast+0x1c0/0x220
[   99.271864][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[   99.271864][   T73]      addrconf_dad_completed+0x12b/0xe20
[   99.271864][   T73]      addrconf_dad_begin+0x310/0x670
[   99.271864][   T73]      addrconf_dad_work+0x10b/0xab0
[   99.271864][   T73]      process_one_work+0x84d/0x18a0
[   99.271864][   T73]      worker_thread+0x587/0xd30
[   99.271864][   T73]      kthread+0x28a/0x350
[   99.271864][   T73]      ret_from_fork+0x31/0x70
[   99.271864][   T73]      ret_from_fork_asm+0x1a/0x30
[   99.271864][   T73] 
[   99.273938][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[   99.273938][   T73]      netdev_get_by_index+0x5e/0x80
[   99.273938][   T73]      fib6_nh_init+0x3d8/0x1580
[   99.273938][   T73]      ip6_route_info_create+0xf18/0x17d0
[   99.273938][   T73]      ip6_route_add+0x1c/0x140
[   99.273938][   T73]      addrconf_prefix_route+0x2a6/0x430
[   99.273938][   T73]      inet6_addr_add+0x4f8/0xa40
[   99.273938][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   99.273938][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   99.273938][   T73]      netlink_rcv_skb+0x130/0x360
[   99.273938][   T73]      netlink_unicast+0x449/0x710
[   99.273938][   T73]      netlink_sendmsg+0x723/0xbe0
[   99.273938][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   99.273938][   T73]      ___sys_sendmsg+0xee/0x170
[   99.273938][   T73]      __sys_sendmsg+0xcd/0x170
[   99.273938][   T73]      do_syscall_64+0xc6/0x1e0
[   99.273938][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   99.273938][   T73] 
[   99.276285][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[   99.276285][   T73]      netdev_get_by_index+0x5e/0x80
[   99.276285][   T73]      fib6_nh_init+0x3d8/0x1580
[   99.276285][   T73]      ip6_route_info_create+0xf18/0x17d0
[   99.276285][   T73]      addrconf_f6i_alloc+0x315/0x560
[   99.276285][   T73]      ipv6_add_addr+0x411/0x2000
[   99.276285][   T73]      inet6_addr_add+0x30e/0xa40
[   99.276285][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   99.276285][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   99.276285][   T73]      netlink_rcv_skb+0x130/0x360
[   99.276285][   T73]      netlink_unicast+0x449/0x710
[   99.276285][   T73]      netlink_sendmsg+0x723/0xbe0
[   99.276285][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   99.276285][   T73]      ___sys_sendmsg+0xee/0x170
[   99.276285][   T73]      __sys_sendmsg+0xcd/0x170
[   99.276285][   T73]      do_syscall_64+0xc6/0x1e0
[   99.276285][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   99.276285][   T73] 
[   99.278509][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[   99.278509][   T73]      netdev_get_by_index+0x5e/0x80
[   99.278509][   T73]      fib6_nh_init+0x3d8/0x1580
[   99.278509][   T73]      ip6_route_info_create+0xf18/0x17d0
[   99.278509][   T73]      ip6_route_add+0x1c/0x140
[   99.278509][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[   99.278509][   T73]      addrconf_add_dev+0xe2/0x170
[   99.278509][   T73]      inet6_addr_add+0x12f/0xa40
[   99.278509][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   99.278509][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   99.278509][   T73]      netlink_rcv_skb+0x130/0x360
[   99.278509][   T73]      netlink_unicast+0x449/0x710
[   99.278509][   T73]      netlink_sendmsg+0x723/0xbe0
[   99.278509][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   99.278509][   T73]      ___sys_sendmsg+0xee/0x170
[   99.278509][   T73]      __sys_sendmsg+0xcd/0x170
[   99.278509][   T73]      do_syscall_64+0xc6/0x1e0
[   99.278509][   T73] 
[   99.280783][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[   99.280783][   T73]      ipv6_add_dev+0x3ba/0x11c0
[   99.280783][   T73]      ipv6_find_idev+0x102/0x170
[   99.280783][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[   99.280783][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   99.280783][   T73]      netlink_rcv_skb+0x130/0x360
[   99.280783][   T73]      netlink_unicast+0x449/0x710
[   99.280783][   T73]      netlink_sendmsg+0x723/0xbe0
[   99.280783][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   99.280783][   T73]      ___sys_sendmsg+0xee/0x170
[   99.280783][   T73]      __sys_sendmsg+0xcd/0x170
[   99.280783][   T73]      do_syscall_64+0xc6/0x1e0
[   99.280783][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   99.280783][   T73] 
[   99.283309][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[   99.283309][   T73]      neigh_parms_alloc+0x1e5/0x510
[   99.283309][   T73]      ipv6_add_dev+0x2fe/0x11c0
[   99.283309][   T73]      ipv6_find_idev+0x102/0x170
[   99.283309][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[   99.283309][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   99.283309][   T73]      netlink_rcv_skb+0x130/0x360
[   99.283309][   T73]      netlink_unicast+0x449/0x710
[   99.283309][   T73]      netlink_sendmsg+0x723/0xbe0
[   99.283309][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   99.283309][   T73]      ___sys_sendmsg+0xee/0x170
[   99.283309][   T73]      __sys_sendmsg+0xcd/0x170
[   99.283309][   T73]      do_syscall_64+0xc6/0x1e0
[   99.283309][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   99.283309][   T73] 
[   99.286287][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[   99.286777][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[   99.286777][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[   99.286777][   T73]      ip6_validate_gw+0x3f7/0x7b0
[   99.286777][   T73]      fib6_nh_init+0xa22/0x1580
[   99.286777][   T73]      ip6_route_info_create+0xf18/0x17d0
[   99.286777][   T73]      ip6_route_add+0x1c/0x140
[   99.286777][   T73]      inet6_rtm_newroute+0x104/0x110
[   99.286777][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   99.286777][   T73]      netlink_rcv_skb+0x130/0x360
[   99.286777][   T73]      netlink_unicast+0x449/0x710
[   99.286777][   T73]      netlink_sendmsg+0x723/0xbe0
[   99.286777][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   99.286777][   T73]      ___sys_sendmsg+0xee/0x170
[   99.286777][   T73]      __sys_sendmsg+0xcd/0x170
[   99.286777][   T73]      do_syscall_64+0xc6/0x1e0
[   99.286777][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   99.286777][   T73] 
[   99.289653][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[   99.289653][   T73]      dst_init+0x84/0x4a0
[   99.289653][   T73]      dst_alloc+0x97/0x150
[   99.289653][   T73]      ip6_dst_alloc+0x23/0x90
[   99.289653][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[   99.289653][   T73]      ip6_pol_route+0x56f/0x840
[   99.289653][   T73]      fib6_rule_lookup+0x456/0x630
[   99.289653][   T73]      ip6_route_input+0x59c/0xa50
[   99.289653][   T73]      ipv6_rcv+0x397/0x810
[   99.289653][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[   99.289653][   T73]      process_backlog+0x101/0x620
[   99.289653][   T73]      __napi_poll.constprop.0+0xa2/0x460
[   99.289653][   T73]      net_rx_action+0x495/0xbe0
[   99.289653][   T73]      __do_softirq+0x1b5/0x7f6
[   99.289653][   T73] 
[   99.291966][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[   99.291966][   T73]      netdev_get_by_index+0x5e/0x80
[   99.291966][   T73]      fib6_nh_init+0x3d8/0x1580
[   99.291966][   T73]      ip6_route_info_create+0xf18/0x17d0
[   99.291966][   T73]      ip6_route_add+0x1c/0x140
[   99.291966][   T73]      addrconf_prefix_route+0x2a6/0x430
[   99.291966][   T73]      inet6_addr_add+0x4f8/0xa40
[   99.291966][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   99.291966][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   99.291966][   T73]      netlink_rcv_skb+0x130/0x360
[   99.291966][   T73]      netlink_unicast+0x449/0x710
[   99.291966][   T73]      netlink_sendmsg+0x723/0xbe0
[   99.291966][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   99.291966][   T73]      ___sys_sendmsg+0xee/0x170
[   99.291966][   T73]      __sys_sendmsg+0xcd/0x170
[   99.291966][   T73]      do_syscall_64+0xc6/0x1e0
[   99.291966][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   99.291966][   T73] 
[   99.295118][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[   99.295118][   T73]      netdev_get_by_index+0x5e/0x80
[   99.295118][   T73]      fib6_nh_init+0x3d8/0x1580
[   99.295118][   T73]      ip6_route_info_create+0xf18/0x17d0
[   99.295118][   T73]      addrconf_f6i_alloc+0x315/0x560
[   99.295118][   T73]      ipv6_add_addr+0x411/0x2000
[   99.295118][   T73]      inet6_addr_add+0x30e/0xa40
[   99.295118][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   99.295118][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   99.295118][   T73]      netlink_rcv_skb+0x130/0x360
[   99.295118][   T73]      netlink_unicast+0x449/0x710
[   99.295118][   T73]      netlink_sendmsg+0x723/0xbe0
[   99.295118][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   99.295118][   T73]      ___sys_sendmsg+0xee/0x170
[   99.295118][   T73]      __sys_sendmsg+0xcd/0x170
[   99.295118][   T73]      do_syscall_64+0xc6/0x1e0
[   99.295118][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   99.295118][   T73] 
[   99.298618][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[   99.298618][   T73]      netdev_get_by_index+0x5e/0x80
[   99.298618][   T73]      fib6_nh_init+0x3d8/0x1580
[   99.298618][   T73]      ip6_route_info_create+0xf18/0x17d0
[   99.298618][   T73]      ip6_route_add+0x1c/0x140
[   99.298618][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[   99.298618][   T73]      addrconf_add_dev+0xe2/0x170
[   99.298618][   T73]      inet6_addr_add+0x12f/0xa40
[   99.298618][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   99.298618][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   99.298618][   T73]      netlink_rcv_skb+0x130/0x360
[   99.298618][   T73]      netlink_unicast+0x449/0x710
[   99.298618][   T73]      netlink_sendmsg+0x723/0xbe0
[   99.298618][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   99.298618][   T73]      ___sys_sendmsg+0xee/0x170
[   99.298618][   T73]      __sys_sendmsg+0xcd/0x170
[   99.298618][   T73]      do_syscall_64+0xc6/0x1e0
[   99.298618][   T73] 
[   99.302016][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[   99.302016][   T73]      ipv6_add_dev+0x3ba/0x11c0
[   99.302016][   T73]      ipv6_find_idev+0x102/0x170
[   99.302016][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[   99.302016][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   99.302016][   T73]      netlink_rcv_skb+0x130/0x360
[   99.302016][   T73]      netlink_unicast+0x449/0x710
[   99.302016][   T73]      netlink_sendmsg+0x723/0xbe0
[   99.302016][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   99.302016][   T73]      ___sys_sendmsg+0xee/0x170
[   99.302016][   T73]      __sys_sendmsg+0xcd/0x170
[   99.302016][   T73]      do_syscall_64+0xc6/0x1e0
[   99.302016][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   99.302016][   T73] 
[   99.304162][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[   99.304162][   T73]      neigh_parms_alloc+0x1e5/0x510
[   99.304162][   T73]      ipv6_add_dev+0x2fe/0x11c0
[   99.304162][   T73]      ipv6_find_idev+0x102/0x170
[   99.304162][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[   99.304162][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   99.304162][   T73]      netlink_rcv_skb+0x130/0x360
[   99.304162][   T73]      netlink_unicast+0x449/0x710
[   99.304162][   T73]      netlink_sendmsg+0x723/0xbe0
[   99.304162][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   99.304162][   T73]      ___sys_sendmsg+0xee/0x170
[   99.304162][   T73]      __sys_sendmsg+0xcd/0x170
[   99.304162][   T73]      do_syscall_64+0xc6/0x1e0
[   99.304162][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   99.304162][   T73] 
[   99.306110][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[   99.306409][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[   99.306409][   T73]      netdev_get_by_index+0x5e/0x80
[   99.306409][   T73]      fib6_nh_init+0x3d8/0x1580
[   99.306409][   T73]      ip6_route_info_create+0xf18/0x17d0
[   99.306409][   T73]      addrconf_f6i_alloc+0x265/0x560
[   99.306409][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[   99.306409][   T73]      addrconf_join_anycast+0x1c0/0x220
[   99.306409][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[   99.306409][   T73]      addrconf_dad_completed+0x12b/0xe20
[   99.306409][   T73]      addrconf_dad_begin+0x310/0x670
[   99.306409][   T73]      addrconf_dad_work+0x10b/0xab0
[   99.306409][   T73]      process_one_work+0x84d/0x18a0
[   99.306409][   T73]      worker_thread+0x587/0xd30
[   99.306409][   T73]      kthread+0x28a/0x350
[   99.306409][   T73]      ret_from_fork+0x31/0x70
[   99.306409][   T73]      ret_from_fork_asm+0x1a/0x30
[   99.306409][   T73] 
[   99.308402][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[   99.308402][   T73]      netdev_get_by_index+0x5e/0x80
[   99.308402][   T73]      fib6_nh_init+0x3d8/0x1580
[   99.308402][   T73]      ip6_route_info_create+0xf18/0x17d0
[   99.308402][   T73]      ip6_route_add+0x1c/0x140
[   99.308402][   T73]      addrconf_prefix_route+0x2a6/0x430
[   99.308402][   T73]      inet6_addr_add+0x4f8/0xa40
[   99.308402][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   99.308402][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   99.308402][   T73]      netlink_rcv_skb+0x130/0x360
[   99.308402][   T73]      netlink_unicast+0x449/0x710
[   99.308402][   T73]      netlink_sendmsg+0x723/0xbe0
[   99.308402][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   99.308402][   T73]      ___sys_sendmsg+0xee/0x170
[   99.308402][   T73]      __sys_sendmsg+0xcd/0x170
[   99.308402][   T73]      do_syscall_64+0xc6/0x1e0
[   99.308402][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   99.308402][   T73] 
[   99.310581][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[   99.310581][   T73]      netdev_get_by_index+0x5e/0x80
[   99.310581][   T73]      fib6_nh_init+0x3d8/0x1580
[   99.310581][   T73]      ip6_route_info_create+0xf18/0x17d0
[   99.310581][   T73]      addrconf_f6i_alloc+0x315/0x560
[   99.310581][   T73]      ipv6_add_addr+0x411/0x2000
[   99.310581][   T73]      inet6_addr_add+0x30e/0xa40
[   99.310581][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   99.310581][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   99.310581][   T73]      netlink_rcv_skb+0x130/0x360
[   99.310581][   T73]      netlink_unicast+0x449/0x710
[   99.310581][   T73]      netlink_sendmsg+0x723/0xbe0
[   99.310581][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   99.310581][   T73]      ___sys_sendmsg+0xee/0x170
[   99.310581][   T73]      __sys_sendmsg+0xcd/0x170
[   99.310581][   T73]      do_syscall_64+0xc6/0x1e0
[   99.310581][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   99.310581][   T73] 
[   99.312753][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[   99.312753][   T73]      netdev_get_by_index+0x5e/0x80
[   99.312753][   T73]      fib6_nh_init+0x3d8/0x1580
[   99.312753][   T73]      ip6_route_info_create+0xf18/0x17d0
[   99.312753][   T73]      ip6_route_add+0x1c/0x140
[   99.312753][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[   99.312753][   T73]      addrconf_add_dev+0xe2/0x170
[   99.312753][   T73]      inet6_addr_add+0x12f/0xa40
[   99.312753][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[   99.312753][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   99.312753][   T73]      netlink_rcv_skb+0x130/0x360
[   99.312753][   T73]      netlink_unicast+0x449/0x710
[   99.312753][   T73]      netlink_sendmsg+0x723/0xbe0
[   99.312753][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   99.312753][   T73]      ___sys_sendmsg+0xee/0x170
[   99.312753][   T73]      __sys_sendmsg+0xcd/0x170
[   99.312753][   T73]      do_syscall_64+0xc6/0x1e0
[   99.312753][   T73] 
[   99.314967][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[   99.314967][   T73]      ipv6_add_dev+0x3ba/0x11c0
[   99.314967][   T73]      ipv6_find_idev+0x102/0x170
[   99.314967][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[   99.314967][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   99.314967][   T73]      netlink_rcv_skb+0x130/0x360
[   99.314967][   T73]      netlink_unicast+0x449/0x710
[   99.314967][   T73]      netlink_sendmsg+0x723/0xbe0
[   99.314967][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   99.314967][   T73]      ___sys_sendmsg+0xee/0x170
[   99.314967][   T73]      __sys_sendmsg+0xcd/0x170
[   99.314967][   T73]      do_syscall_64+0xc6/0x1e0
[   99.314967][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   99.314967][   T73] 
[   99.316708][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[   99.316708][   T73]      neigh_parms_alloc+0x1e5/0x510
[   99.316708][   T73]      ipv6_add_dev+0x2fe/0x11c0
[   99.316708][   T73]      ipv6_find_idev+0x102/0x170
[   99.316708][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[   99.316708][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[   99.316708][   T73]      netlink_rcv_skb+0x130/0x360
[   99.316708][   T73]      netlink_unicast+0x449/0x710
[   99.316708][   T73]      netlink_sendmsg+0x723/0xbe0
[   99.316708][   T73]      ____sys_sendmsg+0x7b2/0xa10
[   99.316708][   T73]      ___sys_sendmsg+0xee/0x170
[   99.316708][   T73]      __sys_sendmsg+0xcd/0x170
[   99.316708][   T73]      do_syscall_64+0xc6/0x1e0
[   99.316708][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[   99.316708][   T73] 
[  109.439708][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  109.440104][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  109.440104][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  109.440104][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  109.440104][   T73]      fib6_nh_init+0xa22/0x1580
[  109.440104][   T73]      ip6_route_info_create+0xf18/0x17d0
[  109.440104][   T73]      ip6_route_add+0x1c/0x140
[  109.440104][   T73]      inet6_rtm_newroute+0x104/0x110
[  109.440104][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  109.440104][   T73]      netlink_rcv_skb+0x130/0x360
[  109.440104][   T73]      netlink_unicast+0x449/0x710
[  109.440104][   T73]      netlink_sendmsg+0x723/0xbe0
[  109.440104][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  109.440104][   T73]      ___sys_sendmsg+0xee/0x170
[  109.440104][   T73]      __sys_sendmsg+0xcd/0x170
[  109.440104][   T73]      do_syscall_64+0xc6/0x1e0
[  109.440104][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  109.440104][   T73] 
[  109.442733][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  109.442733][   T73]      dst_init+0x84/0x4a0
[  109.442733][   T73]      dst_alloc+0x97/0x150
[  109.442733][   T73]      ip6_dst_alloc+0x23/0x90
[  109.442733][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  109.442733][   T73]      ip6_pol_route+0x56f/0x840
[  109.442733][   T73]      fib6_rule_lookup+0x456/0x630
[  109.442733][   T73]      ip6_route_input+0x59c/0xa50
[  109.442733][   T73]      ipv6_rcv+0x397/0x810
[  109.442733][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  109.442733][   T73]      process_backlog+0x101/0x620
[  109.442733][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  109.442733][   T73]      net_rx_action+0x495/0xbe0
[  109.442733][   T73]      __do_softirq+0x1b5/0x7f6
[  109.442733][   T73] 
[  109.445412][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  109.445412][   T73]      netdev_get_by_index+0x5e/0x80
[  109.445412][   T73]      fib6_nh_init+0x3d8/0x1580
[  109.445412][   T73]      ip6_route_info_create+0xf18/0x17d0
[  109.445412][   T73]      ip6_route_add+0x1c/0x140
[  109.445412][   T73]      addrconf_prefix_route+0x2a6/0x430
[  109.445412][   T73]      inet6_addr_add+0x4f8/0xa40
[  109.445412][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  109.445412][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  109.445412][   T73]      netlink_rcv_skb+0x130/0x360
[  109.445412][   T73]      netlink_unicast+0x449/0x710
[  109.445412][   T73]      netlink_sendmsg+0x723/0xbe0
[  109.445412][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  109.445412][   T73]      ___sys_sendmsg+0xee/0x170
[  109.445412][   T73]      __sys_sendmsg+0xcd/0x170
[  109.445412][   T73]      do_syscall_64+0xc6/0x1e0
[  109.445412][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  109.445412][   T73] 
[  109.448819][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  109.448819][   T73]      netdev_get_by_index+0x5e/0x80
[  109.448819][   T73]      fib6_nh_init+0x3d8/0x1580
[  109.448819][   T73]      ip6_route_info_create+0xf18/0x17d0
[  109.448819][   T73]      addrconf_f6i_alloc+0x315/0x560
[  109.448819][   T73]      ipv6_add_addr+0x411/0x2000
[  109.448819][   T73]      inet6_addr_add+0x30e/0xa40
[  109.448819][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  109.448819][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  109.448819][   T73]      netlink_rcv_skb+0x130/0x360
[  109.448819][   T73]      netlink_unicast+0x449/0x710
[  109.448819][   T73]      netlink_sendmsg+0x723/0xbe0
[  109.448819][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  109.448819][   T73]      ___sys_sendmsg+0xee/0x170
[  109.448819][   T73]      __sys_sendmsg+0xcd/0x170
[  109.448819][   T73]      do_syscall_64+0xc6/0x1e0
[  109.448819][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  109.448819][   T73] 
[  109.452229][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  109.452229][   T73]      netdev_get_by_index+0x5e/0x80
[  109.452229][   T73]      fib6_nh_init+0x3d8/0x1580
[  109.452229][   T73]      ip6_route_info_create+0xf18/0x17d0
[  109.452229][   T73]      ip6_route_add+0x1c/0x140
[  109.452229][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  109.452229][   T73]      addrconf_add_dev+0xe2/0x170
[  109.452229][   T73]      inet6_addr_add+0x12f/0xa40
[  109.452229][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  109.452229][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  109.452229][   T73]      netlink_rcv_skb+0x130/0x360
[  109.452229][   T73]      netlink_unicast+0x449/0x710
[  109.452229][   T73]      netlink_sendmsg+0x723/0xbe0
[  109.452229][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  109.452229][   T73]      ___sys_sendmsg+0xee/0x170
[  109.452229][   T73]      __sys_sendmsg+0xcd/0x170
[  109.452229][   T73]      do_syscall_64+0xc6/0x1e0
[  109.452229][   T73] 
[  109.455576][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  109.455576][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  109.455576][   T73]      ipv6_find_idev+0x102/0x170
[  109.455576][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  109.455576][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  109.455576][   T73]      netlink_rcv_skb+0x130/0x360
[  109.455576][   T73]      netlink_unicast+0x449/0x710
[  109.455576][   T73]      netlink_sendmsg+0x723/0xbe0
[  109.455576][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  109.455576][   T73]      ___sys_sendmsg+0xee/0x170
[  109.455576][   T73]      __sys_sendmsg+0xcd/0x170
[  109.455576][   T73]      do_syscall_64+0xc6/0x1e0
[  109.455576][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  109.455576][   T73] 
[  109.458884][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  109.458884][   T73]      neigh_parms_alloc+0x1e5/0x510
[  109.458884][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  109.458884][   T73]      ipv6_find_idev+0x102/0x170
[  109.458884][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  109.458884][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  109.458884][   T73]      netlink_rcv_skb+0x130/0x360
[  109.458884][   T73]      netlink_unicast+0x449/0x710
[  109.458884][   T73]      netlink_sendmsg+0x723/0xbe0
[  109.458884][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  109.458884][   T73]      ___sys_sendmsg+0xee/0x170
[  109.458884][   T73]      __sys_sendmsg+0xcd/0x170
[  109.458884][   T73]      do_syscall_64+0xc6/0x1e0
[  109.458884][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  109.458884][   T73] 
[  109.462360][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  109.462957][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  109.462957][   T73]      netdev_get_by_index+0x5e/0x80
[  109.462957][   T73]      fib6_nh_init+0x3d8/0x1580
[  109.462957][   T73]      ip6_route_info_create+0xf18/0x17d0
[  109.462957][   T73]      addrconf_f6i_alloc+0x265/0x560
[  109.462957][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  109.462957][   T73]      addrconf_join_anycast+0x1c0/0x220
[  109.462957][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  109.462957][   T73]      addrconf_dad_completed+0x12b/0xe20
[  109.462957][   T73]      addrconf_dad_begin+0x310/0x670
[  109.462957][   T73]      addrconf_dad_work+0x10b/0xab0
[  109.462957][   T73]      process_one_work+0x84d/0x18a0
[  109.462957][   T73]      worker_thread+0x587/0xd30
[  109.462957][   T73]      kthread+0x28a/0x350
[  109.462957][   T73]      ret_from_fork+0x31/0x70
[  109.462957][   T73]      ret_from_fork_asm+0x1a/0x30
[  109.462957][   T73] 
[  109.465996][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  109.465996][   T73]      netdev_get_by_index+0x5e/0x80
[  109.465996][   T73]      fib6_nh_init+0x3d8/0x1580
[  109.465996][   T73]      ip6_route_info_create+0xf18/0x17d0
[  109.465996][   T73]      ip6_route_add+0x1c/0x140
[  109.465996][   T73]      addrconf_prefix_route+0x2a6/0x430
[  109.465996][   T73]      inet6_addr_add+0x4f8/0xa40
[  109.465996][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  109.465996][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  109.465996][   T73]      netlink_rcv_skb+0x130/0x360
[  109.465996][   T73]      netlink_unicast+0x449/0x710
[  109.465996][   T73]      netlink_sendmsg+0x723/0xbe0
[  109.465996][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  109.465996][   T73]      ___sys_sendmsg+0xee/0x170
[  109.465996][   T73]      __sys_sendmsg+0xcd/0x170
[  109.465996][   T73]      do_syscall_64+0xc6/0x1e0
[  109.465996][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  109.465996][   T73] 
[  109.468599][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  109.468599][   T73]      netdev_get_by_index+0x5e/0x80
[  109.468599][   T73]      fib6_nh_init+0x3d8/0x1580
[  109.468599][   T73]      ip6_route_info_create+0xf18/0x17d0
[  109.468599][   T73]      addrconf_f6i_alloc+0x315/0x560
[  109.468599][   T73]      ipv6_add_addr+0x411/0x2000
[  109.468599][   T73]      inet6_addr_add+0x30e/0xa40
[  109.468599][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  109.468599][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  109.468599][   T73]      netlink_rcv_skb+0x130/0x360
[  109.468599][   T73]      netlink_unicast+0x449/0x710
[  109.468599][   T73]      netlink_sendmsg+0x723/0xbe0
[  109.468599][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  109.468599][   T73]      ___sys_sendmsg+0xee/0x170
[  109.468599][   T73]      __sys_sendmsg+0xcd/0x170
[  109.468599][   T73]      do_syscall_64+0xc6/0x1e0
[  109.468599][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  109.468599][   T73] 
[  109.471184][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  109.471184][   T73]      netdev_get_by_index+0x5e/0x80
[  109.471184][   T73]      fib6_nh_init+0x3d8/0x1580
[  109.471184][   T73]      ip6_route_info_create+0xf18/0x17d0
[  109.471184][   T73]      ip6_route_add+0x1c/0x140
[  109.471184][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  109.471184][   T73]      addrconf_add_dev+0xe2/0x170
[  109.471184][   T73]      inet6_addr_add+0x12f/0xa40
[  109.471184][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  109.471184][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  109.471184][   T73]      netlink_rcv_skb+0x130/0x360
[  109.471184][   T73]      netlink_unicast+0x449/0x710
[  109.471184][   T73]      netlink_sendmsg+0x723/0xbe0
[  109.471184][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  109.471184][   T73]      ___sys_sendmsg+0xee/0x170
[  109.471184][   T73]      __sys_sendmsg+0xcd/0x170
[  109.471184][   T73]      do_syscall_64+0xc6/0x1e0
[  109.471184][   T73] 
[  109.473623][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  109.473623][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  109.473623][   T73]      ipv6_find_idev+0x102/0x170
[  109.473623][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  109.473623][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  109.473623][   T73]      netlink_rcv_skb+0x130/0x360
[  109.473623][   T73]      netlink_unicast+0x449/0x710
[  109.473623][   T73]      netlink_sendmsg+0x723/0xbe0
[  109.473623][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  109.473623][   T73]      ___sys_sendmsg+0xee/0x170
[  109.473623][   T73]      __sys_sendmsg+0xcd/0x170
[  109.473623][   T73]      do_syscall_64+0xc6/0x1e0
[  109.473623][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  109.473623][   T73] 
[  109.475587][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  109.475587][   T73]      neigh_parms_alloc+0x1e5/0x510
[  109.475587][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  109.475587][   T73]      ipv6_find_idev+0x102/0x170
[  109.475587][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  109.475587][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  109.475587][   T73]      netlink_rcv_skb+0x130/0x360
[  109.475587][   T73]      netlink_unicast+0x449/0x710
[  109.475587][   T73]      netlink_sendmsg+0x723/0xbe0
[  109.475587][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  109.475587][   T73]      ___sys_sendmsg+0xee/0x170
[  109.475587][   T73]      __sys_sendmsg+0xcd/0x170
[  109.475587][   T73]      do_syscall_64+0xc6/0x1e0
[  109.475587][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  109.475587][   T73] 
[  109.477859][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  109.478185][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  109.478185][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  109.478185][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  109.478185][   T73]      fib6_nh_init+0xa22/0x1580
[  109.478185][   T73]      ip6_route_info_create+0xf18/0x17d0
[  109.478185][   T73]      ip6_route_add+0x1c/0x140
[  109.478185][   T73]      inet6_rtm_newroute+0x104/0x110
[  109.478185][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  109.478185][   T73]      netlink_rcv_skb+0x130/0x360
[  109.478185][   T73]      netlink_unicast+0x449/0x710
[  109.478185][   T73]      netlink_sendmsg+0x723/0xbe0
[  109.478185][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  109.478185][   T73]      ___sys_sendmsg+0xee/0x170
[  109.478185][   T73]      __sys_sendmsg+0xcd/0x170
[  109.478185][   T73]      do_syscall_64+0xc6/0x1e0
[  109.478185][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  109.478185][   T73] 
[  109.480426][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  109.480426][   T73]      dst_init+0x84/0x4a0
[  109.480426][   T73]      dst_alloc+0x97/0x150
[  109.480426][   T73]      ip6_dst_alloc+0x23/0x90
[  109.480426][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  109.480426][   T73]      ip6_pol_route+0x56f/0x840
[  109.480426][   T73]      fib6_rule_lookup+0x456/0x630
[  109.480426][   T73]      ip6_route_input+0x59c/0xa50
[  109.480426][   T73]      ipv6_rcv+0x397/0x810
[  109.480426][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  109.480426][   T73]      process_backlog+0x101/0x620
[  109.480426][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  109.480426][   T73]      net_rx_action+0x495/0xbe0
[  109.480426][   T73]      __do_softirq+0x1b5/0x7f6
[  109.480426][   T73] 
[  109.482348][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  109.482348][   T73]      netdev_get_by_index+0x5e/0x80
[  109.482348][   T73]      fib6_nh_init+0x3d8/0x1580
[  109.482348][   T73]      ip6_route_info_create+0xf18/0x17d0
[  109.482348][   T73]      ip6_route_add+0x1c/0x140
[  109.482348][   T73]      addrconf_prefix_route+0x2a6/0x430
[  109.482348][   T73]      inet6_addr_add+0x4f8/0xa40
[  109.482348][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  109.482348][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  109.482348][   T73]      netlink_rcv_skb+0x130/0x360
[  109.482348][   T73]      netlink_unicast+0x449/0x710
[  109.482348][   T73]      netlink_sendmsg+0x723/0xbe0
[  109.482348][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  109.482348][   T73]      ___sys_sendmsg+0xee/0x170
[  109.482348][   T73]      __sys_sendmsg+0xcd/0x170
[  109.482348][   T73]      do_syscall_64+0xc6/0x1e0
[  109.482348][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  109.482348][   T73] 
[  109.484927][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  109.484927][   T73]      netdev_get_by_index+0x5e/0x80
[  109.484927][   T73]      fib6_nh_init+0x3d8/0x1580
[  109.484927][   T73]      ip6_route_info_create+0xf18/0x17d0
[  109.484927][   T73]      addrconf_f6i_alloc+0x315/0x560
[  109.484927][   T73]      ipv6_add_addr+0x411/0x2000
[  109.484927][   T73]      inet6_addr_add+0x30e/0xa40
[  109.484927][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  109.484927][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  109.484927][   T73]      netlink_rcv_skb+0x130/0x360
[  109.484927][   T73]      netlink_unicast+0x449/0x710
[  109.484927][   T73]      netlink_sendmsg+0x723/0xbe0
[  109.484927][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  109.484927][   T73]      ___sys_sendmsg+0xee/0x170
[  109.484927][   T73]      __sys_sendmsg+0xcd/0x170
[  109.484927][   T73]      do_syscall_64+0xc6/0x1e0
[  109.484927][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  109.484927][   T73] 
[  109.487466][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  109.487466][   T73]      netdev_get_by_index+0x5e/0x80
[  109.487466][   T73]      fib6_nh_init+0x3d8/0x1580
[  109.487466][   T73]      ip6_route_info_create+0xf18/0x17d0
[  109.487466][   T73]      ip6_route_add+0x1c/0x140
[  109.487466][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  109.487466][   T73]      addrconf_add_dev+0xe2/0x170
[  109.487466][   T73]      inet6_addr_add+0x12f/0xa40
[  109.487466][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  109.487466][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  109.487466][   T73]      netlink_rcv_skb+0x130/0x360
[  109.487466][   T73]      netlink_unicast+0x449/0x710
[  109.487466][   T73]      netlink_sendmsg+0x723/0xbe0
[  109.487466][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  109.487466][   T73]      ___sys_sendmsg+0xee/0x170
[  109.487466][   T73]      __sys_sendmsg+0xcd/0x170
[  109.487466][   T73]      do_syscall_64+0xc6/0x1e0
[  109.487466][   T73] 
[  109.490002][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  109.490002][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  109.490002][   T73]      ipv6_find_idev+0x102/0x170
[  109.490002][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  109.490002][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  109.490002][   T73]      netlink_rcv_skb+0x130/0x360
[  109.490002][   T73]      netlink_unicast+0x449/0x710
[  109.490002][   T73]      netlink_sendmsg+0x723/0xbe0
[  109.490002][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  109.490002][   T73]      ___sys_sendmsg+0xee/0x170
[  109.490002][   T73]      __sys_sendmsg+0xcd/0x170
[  109.490002][   T73]      do_syscall_64+0xc6/0x1e0
[  109.490002][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  109.490002][   T73] 
[  109.491939][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  109.491939][   T73]      neigh_parms_alloc+0x1e5/0x510
[  109.491939][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  109.491939][   T73]      ipv6_find_idev+0x102/0x170
[  109.491939][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  109.491939][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  109.491939][   T73]      netlink_rcv_skb+0x130/0x360
[  109.491939][   T73]      netlink_unicast+0x449/0x710
[  109.491939][   T73]      netlink_sendmsg+0x723/0xbe0
[  109.491939][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  109.491939][   T73]      ___sys_sendmsg+0xee/0x170
[  109.491939][   T73]      __sys_sendmsg+0xcd/0x170
[  109.491939][   T73]      do_syscall_64+0xc6/0x1e0
[  109.491939][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  109.491939][   T73] 
[  109.494138][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  109.494459][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  109.494459][   T73]      netdev_get_by_index+0x5e/0x80
[  109.494459][   T73]      fib6_nh_init+0x3d8/0x1580
[  109.494459][   T73]      ip6_route_info_create+0xf18/0x17d0
[  109.494459][   T73]      addrconf_f6i_alloc+0x265/0x560
[  109.494459][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  109.494459][   T73]      addrconf_join_anycast+0x1c0/0x220
[  109.494459][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  109.494459][   T73]      addrconf_dad_completed+0x12b/0xe20
[  109.494459][   T73]      addrconf_dad_begin+0x310/0x670
[  109.494459][   T73]      addrconf_dad_work+0x10b/0xab0
[  109.494459][   T73]      process_one_work+0x84d/0x18a0
[  109.494459][   T73]      worker_thread+0x587/0xd30
[  109.494459][   T73]      kthread+0x28a/0x350
[  109.494459][   T73]      ret_from_fork+0x31/0x70
[  109.494459][   T73]      ret_from_fork_asm+0x1a/0x30
[  109.494459][   T73] 
[  109.496854][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  109.496854][   T73]      netdev_get_by_index+0x5e/0x80
[  109.496854][   T73]      fib6_nh_init+0x3d8/0x1580
[  109.496854][   T73]      ip6_route_info_create+0xf18/0x17d0
[  109.496854][   T73]      ip6_route_add+0x1c/0x140
[  109.496854][   T73]      addrconf_prefix_route+0x2a6/0x430
[  109.496854][   T73]      inet6_addr_add+0x4f8/0xa40
[  109.496854][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  109.496854][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  109.496854][   T73]      netlink_rcv_skb+0x130/0x360
[  109.496854][   T73]      netlink_unicast+0x449/0x710
[  109.496854][   T73]      netlink_sendmsg+0x723/0xbe0
[  109.496854][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  109.496854][   T73]      ___sys_sendmsg+0xee/0x170
[  109.496854][   T73]      __sys_sendmsg+0xcd/0x170
[  109.496854][   T73]      do_syscall_64+0xc6/0x1e0
[  109.496854][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  109.496854][   T73] 
[  109.499365][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  109.499365][   T73]      netdev_get_by_index+0x5e/0x80
[  109.499365][   T73]      fib6_nh_init+0x3d8/0x1580
[  109.499365][   T73]      ip6_route_info_create+0xf18/0x17d0
[  109.499365][   T73]      addrconf_f6i_alloc+0x315/0x560
[  109.499365][   T73]      ipv6_add_addr+0x411/0x2000
[  109.499365][   T73]      inet6_addr_add+0x30e/0xa40
[  109.499365][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  109.499365][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  109.499365][   T73]      netlink_rcv_skb+0x130/0x360
[  109.499365][   T73]      netlink_unicast+0x449/0x710
[  109.499365][   T73]      netlink_sendmsg+0x723/0xbe0
[  109.499365][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  109.499365][   T73]      ___sys_sendmsg+0xee/0x170
[  109.499365][   T73]      __sys_sendmsg+0xcd/0x170
[  109.499365][   T73]      do_syscall_64+0xc6/0x1e0
[  109.499365][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  109.499365][   T73] 
[  109.502262][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  109.502262][   T73]      netdev_get_by_index+0x5e/0x80
[  109.502262][   T73]      fib6_nh_init+0x3d8/0x1580
[  109.502262][   T73]      ip6_route_info_create+0xf18/0x17d0
[  109.502262][   T73]      ip6_route_add+0x1c/0x140
[  109.502262][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  109.502262][   T73]      addrconf_add_dev+0xe2/0x170
[  109.502262][   T73]      inet6_addr_add+0x12f/0xa40
[  109.502262][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  109.502262][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  109.502262][   T73]      netlink_rcv_skb+0x130/0x360
[  109.502262][   T73]      netlink_unicast+0x449/0x710
[  109.502262][   T73]      netlink_sendmsg+0x723/0xbe0
[  109.502262][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  109.502262][   T73]      ___sys_sendmsg+0xee/0x170
[  109.502262][   T73]      __sys_sendmsg+0xcd/0x170
[  109.502262][   T73]      do_syscall_64+0xc6/0x1e0
[  109.502262][   T73] 
[  109.504892][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  109.504892][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  109.504892][   T73]      ipv6_find_idev+0x102/0x170
[  109.504892][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  109.504892][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  109.504892][   T73]      netlink_rcv_skb+0x130/0x360
[  109.504892][   T73]      netlink_unicast+0x449/0x710
[  109.504892][   T73]      netlink_sendmsg+0x723/0xbe0
[  109.504892][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  109.504892][   T73]      ___sys_sendmsg+0xee/0x170
[  109.504892][   T73]      __sys_sendmsg+0xcd/0x170
[  109.504892][   T73]      do_syscall_64+0xc6/0x1e0
[  109.504892][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  109.504892][   T73] 
[  109.507083][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  109.507083][   T73]      neigh_parms_alloc+0x1e5/0x510
[  109.507083][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  109.507083][   T73]      ipv6_find_idev+0x102/0x170
[  109.507083][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  109.507083][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  109.507083][   T73]      netlink_rcv_skb+0x130/0x360
[  109.507083][   T73]      netlink_unicast+0x449/0x710
[  109.507083][   T73]      netlink_sendmsg+0x723/0xbe0
[  109.507083][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  109.507083][   T73]      ___sys_sendmsg+0xee/0x170
[  109.507083][   T73]      __sys_sendmsg+0xcd/0x170
[  109.507083][   T73]      do_syscall_64+0xc6/0x1e0
[  109.507083][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  109.507083][   T73] 
[  119.592283][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  119.592641][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  119.592641][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  119.592641][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  119.592641][   T73]      fib6_nh_init+0xa22/0x1580
[  119.592641][   T73]      ip6_route_info_create+0xf18/0x17d0
[  119.592641][   T73]      ip6_route_add+0x1c/0x140
[  119.592641][   T73]      inet6_rtm_newroute+0x104/0x110
[  119.592641][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  119.592641][   T73]      netlink_rcv_skb+0x130/0x360
[  119.592641][   T73]      netlink_unicast+0x449/0x710
[  119.592641][   T73]      netlink_sendmsg+0x723/0xbe0
[  119.592641][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  119.592641][   T73]      ___sys_sendmsg+0xee/0x170
[  119.592641][   T73]      __sys_sendmsg+0xcd/0x170
[  119.592641][   T73]      do_syscall_64+0xc6/0x1e0
[  119.592641][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  119.592641][   T73] 
[  119.594733][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  119.594733][   T73]      dst_init+0x84/0x4a0
[  119.594733][   T73]      dst_alloc+0x97/0x150
[  119.594733][   T73]      ip6_dst_alloc+0x23/0x90
[  119.594733][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  119.594733][   T73]      ip6_pol_route+0x56f/0x840
[  119.594733][   T73]      fib6_rule_lookup+0x456/0x630
[  119.594733][   T73]      ip6_route_input+0x59c/0xa50
[  119.594733][   T73]      ipv6_rcv+0x397/0x810
[  119.594733][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  119.594733][   T73]      process_backlog+0x101/0x620
[  119.594733][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  119.594733][   T73]      net_rx_action+0x495/0xbe0
[  119.594733][   T73]      __do_softirq+0x1b5/0x7f6
[  119.594733][   T73] 
[  119.596627][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  119.596627][   T73]      netdev_get_by_index+0x5e/0x80
[  119.596627][   T73]      fib6_nh_init+0x3d8/0x1580
[  119.596627][   T73]      ip6_route_info_create+0xf18/0x17d0
[  119.596627][   T73]      ip6_route_add+0x1c/0x140
[  119.596627][   T73]      addrconf_prefix_route+0x2a6/0x430
[  119.596627][   T73]      inet6_addr_add+0x4f8/0xa40
[  119.596627][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  119.596627][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  119.596627][   T73]      netlink_rcv_skb+0x130/0x360
[  119.596627][   T73]      netlink_unicast+0x449/0x710
[  119.596627][   T73]      netlink_sendmsg+0x723/0xbe0
[  119.596627][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  119.596627][   T73]      ___sys_sendmsg+0xee/0x170
[  119.596627][   T73]      __sys_sendmsg+0xcd/0x170
[  119.596627][   T73]      do_syscall_64+0xc6/0x1e0
[  119.596627][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  119.596627][   T73] 
[  119.598801][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  119.598801][   T73]      netdev_get_by_index+0x5e/0x80
[  119.598801][   T73]      fib6_nh_init+0x3d8/0x1580
[  119.598801][   T73]      ip6_route_info_create+0xf18/0x17d0
[  119.598801][   T73]      addrconf_f6i_alloc+0x315/0x560
[  119.598801][   T73]      ipv6_add_addr+0x411/0x2000
[  119.598801][   T73]      inet6_addr_add+0x30e/0xa40
[  119.598801][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  119.598801][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  119.598801][   T73]      netlink_rcv_skb+0x130/0x360
[  119.598801][   T73]      netlink_unicast+0x449/0x710
[  119.598801][   T73]      netlink_sendmsg+0x723/0xbe0
[  119.598801][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  119.598801][   T73]      ___sys_sendmsg+0xee/0x170
[  119.598801][   T73]      __sys_sendmsg+0xcd/0x170
[  119.598801][   T73]      do_syscall_64+0xc6/0x1e0
[  119.598801][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  119.598801][   T73] 
[  119.600952][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  119.600952][   T73]      netdev_get_by_index+0x5e/0x80
[  119.600952][   T73]      fib6_nh_init+0x3d8/0x1580
[  119.600952][   T73]      ip6_route_info_create+0xf18/0x17d0
[  119.600952][   T73]      ip6_route_add+0x1c/0x140
[  119.600952][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  119.600952][   T73]      addrconf_add_dev+0xe2/0x170
[  119.600952][   T73]      inet6_addr_add+0x12f/0xa40
[  119.600952][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  119.600952][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  119.600952][   T73]      netlink_rcv_skb+0x130/0x360
[  119.600952][   T73]      netlink_unicast+0x449/0x710
[  119.600952][   T73]      netlink_sendmsg+0x723/0xbe0
[  119.600952][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  119.600952][   T73]      ___sys_sendmsg+0xee/0x170
[  119.600952][   T73]      __sys_sendmsg+0xcd/0x170
[  119.600952][   T73]      do_syscall_64+0xc6/0x1e0
[  119.600952][   T73] 
[  119.603107][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  119.603107][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  119.603107][   T73]      ipv6_find_idev+0x102/0x170
[  119.603107][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  119.603107][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  119.603107][   T73]      netlink_rcv_skb+0x130/0x360
[  119.603107][   T73]      netlink_unicast+0x449/0x710
[  119.603107][   T73]      netlink_sendmsg+0x723/0xbe0
[  119.603107][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  119.603107][   T73]      ___sys_sendmsg+0xee/0x170
[  119.603107][   T73]      __sys_sendmsg+0xcd/0x170
[  119.603107][   T73]      do_syscall_64+0xc6/0x1e0
[  119.603107][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  119.603107][   T73] 
[  119.605263][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  119.605263][   T73]      neigh_parms_alloc+0x1e5/0x510
[  119.605263][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  119.605263][   T73]      ipv6_find_idev+0x102/0x170
[  119.605263][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  119.605263][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  119.605263][   T73]      netlink_rcv_skb+0x130/0x360
[  119.605263][   T73]      netlink_unicast+0x449/0x710
[  119.605263][   T73]      netlink_sendmsg+0x723/0xbe0
[  119.605263][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  119.605263][   T73]      ___sys_sendmsg+0xee/0x170
[  119.605263][   T73]      __sys_sendmsg+0xcd/0x170
[  119.605263][   T73]      do_syscall_64+0xc6/0x1e0
[  119.605263][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  119.605263][   T73] 
[  119.607424][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  119.608194][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  119.608194][   T73]      netdev_get_by_index+0x5e/0x80
[  119.608194][   T73]      fib6_nh_init+0x3d8/0x1580
[  119.608194][   T73]      ip6_route_info_create+0xf18/0x17d0
[  119.608194][   T73]      addrconf_f6i_alloc+0x265/0x560
[  119.608194][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  119.608194][   T73]      addrconf_join_anycast+0x1c0/0x220
[  119.608194][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  119.608194][   T73]      addrconf_dad_completed+0x12b/0xe20
[  119.608194][   T73]      addrconf_dad_begin+0x310/0x670
[  119.608194][   T73]      addrconf_dad_work+0x10b/0xab0
[  119.608194][   T73]      process_one_work+0x84d/0x18a0
[  119.608194][   T73]      worker_thread+0x587/0xd30
[  119.608194][   T73]      kthread+0x28a/0x350
[  119.608194][   T73]      ret_from_fork+0x31/0x70
[  119.608194][   T73]      ret_from_fork_asm+0x1a/0x30
[  119.608194][   T73] 
[  119.610461][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  119.610461][   T73]      netdev_get_by_index+0x5e/0x80
[  119.610461][   T73]      fib6_nh_init+0x3d8/0x1580
[  119.610461][   T73]      ip6_route_info_create+0xf18/0x17d0
[  119.610461][   T73]      ip6_route_add+0x1c/0x140
[  119.610461][   T73]      addrconf_prefix_route+0x2a6/0x430
[  119.610461][   T73]      inet6_addr_add+0x4f8/0xa40
[  119.610461][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  119.610461][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  119.610461][   T73]      netlink_rcv_skb+0x130/0x360
[  119.610461][   T73]      netlink_unicast+0x449/0x710
[  119.610461][   T73]      netlink_sendmsg+0x723/0xbe0
[  119.610461][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  119.610461][   T73]      ___sys_sendmsg+0xee/0x170
[  119.610461][   T73]      __sys_sendmsg+0xcd/0x170
[  119.610461][   T73]      do_syscall_64+0xc6/0x1e0
[  119.610461][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  119.610461][   T73] 
[  119.612953][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  119.612953][   T73]      netdev_get_by_index+0x5e/0x80
[  119.612953][   T73]      fib6_nh_init+0x3d8/0x1580
[  119.612953][   T73]      ip6_route_info_create+0xf18/0x17d0
[  119.612953][   T73]      addrconf_f6i_alloc+0x315/0x560
[  119.612953][   T73]      ipv6_add_addr+0x411/0x2000
[  119.612953][   T73]      inet6_addr_add+0x30e/0xa40
[  119.612953][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  119.612953][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  119.612953][   T73]      netlink_rcv_skb+0x130/0x360
[  119.612953][   T73]      netlink_unicast+0x449/0x710
[  119.612953][   T73]      netlink_sendmsg+0x723/0xbe0
[  119.612953][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  119.612953][   T73]      ___sys_sendmsg+0xee/0x170
[  119.612953][   T73]      __sys_sendmsg+0xcd/0x170
[  119.612953][   T73]      do_syscall_64+0xc6/0x1e0
[  119.612953][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  119.612953][   T73] 
[  119.615455][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  119.615455][   T73]      netdev_get_by_index+0x5e/0x80
[  119.615455][   T73]      fib6_nh_init+0x3d8/0x1580
[  119.615455][   T73]      ip6_route_info_create+0xf18/0x17d0
[  119.615455][   T73]      ip6_route_add+0x1c/0x140
[  119.615455][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  119.615455][   T73]      addrconf_add_dev+0xe2/0x170
[  119.615455][   T73]      inet6_addr_add+0x12f/0xa40
[  119.615455][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  119.615455][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  119.615455][   T73]      netlink_rcv_skb+0x130/0x360
[  119.615455][   T73]      netlink_unicast+0x449/0x710
[  119.615455][   T73]      netlink_sendmsg+0x723/0xbe0
[  119.615455][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  119.615455][   T73]      ___sys_sendmsg+0xee/0x170
[  119.615455][   T73]      __sys_sendmsg+0xcd/0x170
[  119.615455][   T73]      do_syscall_64+0xc6/0x1e0
[  119.615455][   T73] 
[  119.617889][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  119.617889][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  119.617889][   T73]      ipv6_find_idev+0x102/0x170
[  119.617889][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  119.617889][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  119.617889][   T73]      netlink_rcv_skb+0x130/0x360
[  119.617889][   T73]      netlink_unicast+0x449/0x710
[  119.617889][   T73]      netlink_sendmsg+0x723/0xbe0
[  119.617889][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  119.617889][   T73]      ___sys_sendmsg+0xee/0x170
[  119.617889][   T73]      __sys_sendmsg+0xcd/0x170
[  119.617889][   T73]      do_syscall_64+0xc6/0x1e0
[  119.617889][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  119.617889][   T73] 
[  119.619787][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  119.619787][   T73]      neigh_parms_alloc+0x1e5/0x510
[  119.619787][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  119.619787][   T73]      ipv6_find_idev+0x102/0x170
[  119.619787][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  119.619787][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  119.619787][   T73]      netlink_rcv_skb+0x130/0x360
[  119.619787][   T73]      netlink_unicast+0x449/0x710
[  119.619787][   T73]      netlink_sendmsg+0x723/0xbe0
[  119.619787][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  119.619787][   T73]      ___sys_sendmsg+0xee/0x170
[  119.619787][   T73]      __sys_sendmsg+0xcd/0x170
[  119.619787][   T73]      do_syscall_64+0xc6/0x1e0
[  119.619787][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  119.619787][   T73] 
[  119.621949][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  119.622335][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  119.622335][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  119.622335][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  119.622335][   T73]      fib6_nh_init+0xa22/0x1580
[  119.622335][   T73]      ip6_route_info_create+0xf18/0x17d0
[  119.622335][   T73]      ip6_route_add+0x1c/0x140
[  119.622335][   T73]      inet6_rtm_newroute+0x104/0x110
[  119.622335][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  119.622335][   T73]      netlink_rcv_skb+0x130/0x360
[  119.622335][   T73]      netlink_unicast+0x449/0x710
[  119.622335][   T73]      netlink_sendmsg+0x723/0xbe0
[  119.622335][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  119.622335][   T73]      ___sys_sendmsg+0xee/0x170
[  119.622335][   T73]      __sys_sendmsg+0xcd/0x170
[  119.622335][   T73]      do_syscall_64+0xc6/0x1e0
[  119.622335][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  119.622335][   T73] 
[  119.624621][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  119.624621][   T73]      dst_init+0x84/0x4a0
[  119.624621][   T73]      dst_alloc+0x97/0x150
[  119.624621][   T73]      ip6_dst_alloc+0x23/0x90
[  119.624621][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  119.624621][   T73]      ip6_pol_route+0x56f/0x840
[  119.624621][   T73]      fib6_rule_lookup+0x456/0x630
[  119.624621][   T73]      ip6_route_input+0x59c/0xa50
[  119.624621][   T73]      ipv6_rcv+0x397/0x810
[  119.624621][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  119.624621][   T73]      process_backlog+0x101/0x620
[  119.624621][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  119.624621][   T73]      net_rx_action+0x495/0xbe0
[  119.624621][   T73]      __do_softirq+0x1b5/0x7f6
[  119.624621][   T73] 
[  119.626662][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  119.626662][   T73]      netdev_get_by_index+0x5e/0x80
[  119.626662][   T73]      fib6_nh_init+0x3d8/0x1580
[  119.626662][   T73]      ip6_route_info_create+0xf18/0x17d0
[  119.626662][   T73]      ip6_route_add+0x1c/0x140
[  119.626662][   T73]      addrconf_prefix_route+0x2a6/0x430
[  119.626662][   T73]      inet6_addr_add+0x4f8/0xa40
[  119.626662][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  119.626662][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  119.626662][   T73]      netlink_rcv_skb+0x130/0x360
[  119.626662][   T73]      netlink_unicast+0x449/0x710
[  119.626662][   T73]      netlink_sendmsg+0x723/0xbe0
[  119.626662][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  119.626662][   T73]      ___sys_sendmsg+0xee/0x170
[  119.626662][   T73]      __sys_sendmsg+0xcd/0x170
[  119.626662][   T73]      do_syscall_64+0xc6/0x1e0
[  119.626662][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  119.626662][   T73] 
[  119.629103][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  119.629103][   T73]      netdev_get_by_index+0x5e/0x80
[  119.629103][   T73]      fib6_nh_init+0x3d8/0x1580
[  119.629103][   T73]      ip6_route_info_create+0xf18/0x17d0
[  119.629103][   T73]      addrconf_f6i_alloc+0x315/0x560
[  119.629103][   T73]      ipv6_add_addr+0x411/0x2000
[  119.629103][   T73]      inet6_addr_add+0x30e/0xa40
[  119.629103][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  119.629103][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  119.629103][   T73]      netlink_rcv_skb+0x130/0x360
[  119.629103][   T73]      netlink_unicast+0x449/0x710
[  119.629103][   T73]      netlink_sendmsg+0x723/0xbe0
[  119.629103][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  119.629103][   T73]      ___sys_sendmsg+0xee/0x170
[  119.629103][   T73]      __sys_sendmsg+0xcd/0x170
[  119.629103][   T73]      do_syscall_64+0xc6/0x1e0
[  119.629103][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  119.629103][   T73] 
[  119.631643][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  119.631643][   T73]      netdev_get_by_index+0x5e/0x80
[  119.631643][   T73]      fib6_nh_init+0x3d8/0x1580
[  119.631643][   T73]      ip6_route_info_create+0xf18/0x17d0
[  119.631643][   T73]      ip6_route_add+0x1c/0x140
[  119.631643][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  119.631643][   T73]      addrconf_add_dev+0xe2/0x170
[  119.631643][   T73]      inet6_addr_add+0x12f/0xa40
[  119.631643][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  119.631643][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  119.631643][   T73]      netlink_rcv_skb+0x130/0x360
[  119.631643][   T73]      netlink_unicast+0x449/0x710
[  119.631643][   T73]      netlink_sendmsg+0x723/0xbe0
[  119.631643][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  119.631643][   T73]      ___sys_sendmsg+0xee/0x170
[  119.631643][   T73]      __sys_sendmsg+0xcd/0x170
[  119.631643][   T73]      do_syscall_64+0xc6/0x1e0
[  119.631643][   T73] 
[  119.634104][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  119.634104][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  119.634104][   T73]      ipv6_find_idev+0x102/0x170
[  119.634104][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  119.634104][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  119.634104][   T73]      netlink_rcv_skb+0x130/0x360
[  119.634104][   T73]      netlink_unicast+0x449/0x710
[  119.634104][   T73]      netlink_sendmsg+0x723/0xbe0
[  119.634104][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  119.634104][   T73]      ___sys_sendmsg+0xee/0x170
[  119.634104][   T73]      __sys_sendmsg+0xcd/0x170
[  119.634104][   T73]      do_syscall_64+0xc6/0x1e0
[  119.634104][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  119.634104][   T73] 
[  119.636073][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  119.636073][   T73]      neigh_parms_alloc+0x1e5/0x510
[  119.636073][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  119.636073][   T73]      ipv6_find_idev+0x102/0x170
[  119.636073][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  119.636073][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  119.636073][   T73]      netlink_rcv_skb+0x130/0x360
[  119.636073][   T73]      netlink_unicast+0x449/0x710
[  119.636073][   T73]      netlink_sendmsg+0x723/0xbe0
[  119.636073][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  119.636073][   T73]      ___sys_sendmsg+0xee/0x170
[  119.636073][   T73]      __sys_sendmsg+0xcd/0x170
[  119.636073][   T73]      do_syscall_64+0xc6/0x1e0
[  119.636073][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  119.636073][   T73] 
[  119.638701][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  119.639028][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  119.639028][   T73]      netdev_get_by_index+0x5e/0x80
[  119.639028][   T73]      fib6_nh_init+0x3d8/0x1580
[  119.639028][   T73]      ip6_route_info_create+0xf18/0x17d0
[  119.639028][   T73]      addrconf_f6i_alloc+0x265/0x560
[  119.639028][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  119.639028][   T73]      addrconf_join_anycast+0x1c0/0x220
[  119.639028][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  119.639028][   T73]      addrconf_dad_completed+0x12b/0xe20
[  119.639028][   T73]      addrconf_dad_begin+0x310/0x670
[  119.639028][   T73]      addrconf_dad_work+0x10b/0xab0
[  119.639028][   T73]      process_one_work+0x84d/0x18a0
[  119.639028][   T73]      worker_thread+0x587/0xd30
[  119.639028][   T73]      kthread+0x28a/0x350
[  119.639028][   T73]      ret_from_fork+0x31/0x70
[  119.639028][   T73]      ret_from_fork_asm+0x1a/0x30
[  119.639028][   T73] 
[  119.641266][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  119.641266][   T73]      netdev_get_by_index+0x5e/0x80
[  119.641266][   T73]      fib6_nh_init+0x3d8/0x1580
[  119.641266][   T73]      ip6_route_info_create+0xf18/0x17d0
[  119.641266][   T73]      ip6_route_add+0x1c/0x140
[  119.641266][   T73]      addrconf_prefix_route+0x2a6/0x430
[  119.641266][   T73]      inet6_addr_add+0x4f8/0xa40
[  119.641266][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  119.641266][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  119.641266][   T73]      netlink_rcv_skb+0x130/0x360
[  119.641266][   T73]      netlink_unicast+0x449/0x710
[  119.641266][   T73]      netlink_sendmsg+0x723/0xbe0
[  119.641266][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  119.641266][   T73]      ___sys_sendmsg+0xee/0x170
[  119.641266][   T73]      __sys_sendmsg+0xcd/0x170
[  119.641266][   T73]      do_syscall_64+0xc6/0x1e0
[  119.641266][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  119.641266][   T73] 
[  119.643856][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  119.643856][   T73]      netdev_get_by_index+0x5e/0x80
[  119.643856][   T73]      fib6_nh_init+0x3d8/0x1580
[  119.643856][   T73]      ip6_route_info_create+0xf18/0x17d0
[  119.643856][   T73]      addrconf_f6i_alloc+0x315/0x560
[  119.643856][   T73]      ipv6_add_addr+0x411/0x2000
[  119.643856][   T73]      inet6_addr_add+0x30e/0xa40
[  119.643856][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  119.643856][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  119.643856][   T73]      netlink_rcv_skb+0x130/0x360
[  119.643856][   T73]      netlink_unicast+0x449/0x710
[  119.643856][   T73]      netlink_sendmsg+0x723/0xbe0
[  119.643856][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  119.643856][   T73]      ___sys_sendmsg+0xee/0x170
[  119.643856][   T73]      __sys_sendmsg+0xcd/0x170
[  119.643856][   T73]      do_syscall_64+0xc6/0x1e0
[  119.643856][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  119.643856][   T73] 
[  119.646235][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  119.646235][   T73]      netdev_get_by_index+0x5e/0x80
[  119.646235][   T73]      fib6_nh_init+0x3d8/0x1580
[  119.646235][   T73]      ip6_route_info_create+0xf18/0x17d0
[  119.646235][   T73]      ip6_route_add+0x1c/0x140
[  119.646235][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  119.646235][   T73]      addrconf_add_dev+0xe2/0x170
[  119.646235][   T73]      inet6_addr_add+0x12f/0xa40
[  119.646235][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  119.646235][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  119.646235][   T73]      netlink_rcv_skb+0x130/0x360
[  119.646235][   T73]      netlink_unicast+0x449/0x710
[  119.646235][   T73]      netlink_sendmsg+0x723/0xbe0
[  119.646235][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  119.646235][   T73]      ___sys_sendmsg+0xee/0x170
[  119.646235][   T73]      __sys_sendmsg+0xcd/0x170
[  119.646235][   T73]      do_syscall_64+0xc6/0x1e0
[  119.646235][   T73] 
[  119.648602][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  119.648602][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  119.648602][   T73]      ipv6_find_idev+0x102/0x170
[  119.648602][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  119.648602][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  119.648602][   T73]      netlink_rcv_skb+0x130/0x360
[  119.648602][   T73]      netlink_unicast+0x449/0x710
[  119.648602][   T73]      netlink_sendmsg+0x723/0xbe0
[  119.648602][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  119.648602][   T73]      ___sys_sendmsg+0xee/0x170
[  119.648602][   T73]      __sys_sendmsg+0xcd/0x170
[  119.648602][   T73]      do_syscall_64+0xc6/0x1e0
[  119.648602][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  119.648602][   T73] 
[  119.650644][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  119.650644][   T73]      neigh_parms_alloc+0x1e5/0x510
[  119.650644][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  119.650644][   T73]      ipv6_find_idev+0x102/0x170
[  119.650644][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  119.650644][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  119.650644][   T73]      netlink_rcv_skb+0x130/0x360
[  119.650644][   T73]      netlink_unicast+0x449/0x710
[  119.650644][   T73]      netlink_sendmsg+0x723/0xbe0
[  119.650644][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  119.650644][   T73]      ___sys_sendmsg+0xee/0x170
[  119.650644][   T73]      __sys_sendmsg+0xcd/0x170
[  119.650644][   T73]      do_syscall_64+0xc6/0x1e0
[  119.650644][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  119.650644][   T73] 
[  129.759777][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  129.760242][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  129.760242][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  129.760242][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  129.760242][   T73]      fib6_nh_init+0xa22/0x1580
[  129.760242][   T73]      ip6_route_info_create+0xf18/0x17d0
[  129.760242][   T73]      ip6_route_add+0x1c/0x140
[  129.760242][   T73]      inet6_rtm_newroute+0x104/0x110
[  129.760242][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  129.760242][   T73]      netlink_rcv_skb+0x130/0x360
[  129.760242][   T73]      netlink_unicast+0x449/0x710
[  129.760242][   T73]      netlink_sendmsg+0x723/0xbe0
[  129.760242][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  129.760242][   T73]      ___sys_sendmsg+0xee/0x170
[  129.760242][   T73]      __sys_sendmsg+0xcd/0x170
[  129.760242][   T73]      do_syscall_64+0xc6/0x1e0
[  129.760242][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  129.760242][   T73] 
[  129.762270][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  129.762270][   T73]      dst_init+0x84/0x4a0
[  129.762270][   T73]      dst_alloc+0x97/0x150
[  129.762270][   T73]      ip6_dst_alloc+0x23/0x90
[  129.762270][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  129.762270][   T73]      ip6_pol_route+0x56f/0x840
[  129.762270][   T73]      fib6_rule_lookup+0x456/0x630
[  129.762270][   T73]      ip6_route_input+0x59c/0xa50
[  129.762270][   T73]      ipv6_rcv+0x397/0x810
[  129.762270][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  129.762270][   T73]      process_backlog+0x101/0x620
[  129.762270][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  129.762270][   T73]      net_rx_action+0x495/0xbe0
[  129.762270][   T73]      __do_softirq+0x1b5/0x7f6
[  129.762270][   T73] 
[  129.763984][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  129.763984][   T73]      netdev_get_by_index+0x5e/0x80
[  129.763984][   T73]      fib6_nh_init+0x3d8/0x1580
[  129.763984][   T73]      ip6_route_info_create+0xf18/0x17d0
[  129.763984][   T73]      ip6_route_add+0x1c/0x140
[  129.763984][   T73]      addrconf_prefix_route+0x2a6/0x430
[  129.763984][   T73]      inet6_addr_add+0x4f8/0xa40
[  129.763984][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  129.763984][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  129.763984][   T73]      netlink_rcv_skb+0x130/0x360
[  129.763984][   T73]      netlink_unicast+0x449/0x710
[  129.763984][   T73]      netlink_sendmsg+0x723/0xbe0
[  129.763984][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  129.763984][   T73]      ___sys_sendmsg+0xee/0x170
[  129.763984][   T73]      __sys_sendmsg+0xcd/0x170
[  129.763984][   T73]      do_syscall_64+0xc6/0x1e0
[  129.763984][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  129.763984][   T73] 
[  129.766190][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  129.766190][   T73]      netdev_get_by_index+0x5e/0x80
[  129.766190][   T73]      fib6_nh_init+0x3d8/0x1580
[  129.766190][   T73]      ip6_route_info_create+0xf18/0x17d0
[  129.766190][   T73]      addrconf_f6i_alloc+0x315/0x560
[  129.766190][   T73]      ipv6_add_addr+0x411/0x2000
[  129.766190][   T73]      inet6_addr_add+0x30e/0xa40
[  129.766190][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  129.766190][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  129.766190][   T73]      netlink_rcv_skb+0x130/0x360
[  129.766190][   T73]      netlink_unicast+0x449/0x710
[  129.766190][   T73]      netlink_sendmsg+0x723/0xbe0
[  129.766190][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  129.766190][   T73]      ___sys_sendmsg+0xee/0x170
[  129.766190][   T73]      __sys_sendmsg+0xcd/0x170
[  129.766190][   T73]      do_syscall_64+0xc6/0x1e0
[  129.766190][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  129.766190][   T73] 
[  129.768279][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  129.768279][   T73]      netdev_get_by_index+0x5e/0x80
[  129.768279][   T73]      fib6_nh_init+0x3d8/0x1580
[  129.768279][   T73]      ip6_route_info_create+0xf18/0x17d0
[  129.768279][   T73]      ip6_route_add+0x1c/0x140
[  129.768279][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  129.768279][   T73]      addrconf_add_dev+0xe2/0x170
[  129.768279][   T73]      inet6_addr_add+0x12f/0xa40
[  129.768279][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  129.768279][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  129.768279][   T73]      netlink_rcv_skb+0x130/0x360
[  129.768279][   T73]      netlink_unicast+0x449/0x710
[  129.768279][   T73]      netlink_sendmsg+0x723/0xbe0
[  129.768279][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  129.768279][   T73]      ___sys_sendmsg+0xee/0x170
[  129.768279][   T73]      __sys_sendmsg+0xcd/0x170
[  129.768279][   T73]      do_syscall_64+0xc6/0x1e0
[  129.768279][   T73] 
[  129.770335][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  129.770335][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  129.770335][   T73]      ipv6_find_idev+0x102/0x170
[  129.770335][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  129.770335][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  129.770335][   T73]      netlink_rcv_skb+0x130/0x360
[  129.770335][   T73]      netlink_unicast+0x449/0x710
[  129.770335][   T73]      netlink_sendmsg+0x723/0xbe0
[  129.770335][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  129.770335][   T73]      ___sys_sendmsg+0xee/0x170
[  129.770335][   T73]      __sys_sendmsg+0xcd/0x170
[  129.770335][   T73]      do_syscall_64+0xc6/0x1e0
[  129.770335][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  129.770335][   T73] 
[  129.771910][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  129.771910][   T73]      neigh_parms_alloc+0x1e5/0x510
[  129.771910][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  129.771910][   T73]      ipv6_find_idev+0x102/0x170
[  129.771910][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  129.771910][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  129.771910][   T73]      netlink_rcv_skb+0x130/0x360
[  129.771910][   T73]      netlink_unicast+0x449/0x710
[  129.771910][   T73]      netlink_sendmsg+0x723/0xbe0
[  129.771910][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  129.771910][   T73]      ___sys_sendmsg+0xee/0x170
[  129.771910][   T73]      __sys_sendmsg+0xcd/0x170
[  129.771910][   T73]      do_syscall_64+0xc6/0x1e0
[  129.771910][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  129.771910][   T73] 
[  129.773695][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  129.774023][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  129.774023][   T73]      netdev_get_by_index+0x5e/0x80
[  129.774023][   T73]      fib6_nh_init+0x3d8/0x1580
[  129.774023][   T73]      ip6_route_info_create+0xf18/0x17d0
[  129.774023][   T73]      addrconf_f6i_alloc+0x265/0x560
[  129.774023][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  129.774023][   T73]      addrconf_join_anycast+0x1c0/0x220
[  129.774023][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  129.774023][   T73]      addrconf_dad_completed+0x12b/0xe20
[  129.774023][   T73]      addrconf_dad_begin+0x310/0x670
[  129.774023][   T73]      addrconf_dad_work+0x10b/0xab0
[  129.774023][   T73]      process_one_work+0x84d/0x18a0
[  129.774023][   T73]      worker_thread+0x587/0xd30
[  129.774023][   T73]      kthread+0x28a/0x350
[  129.774023][   T73]      ret_from_fork+0x31/0x70
[  129.774023][   T73]      ret_from_fork_asm+0x1a/0x30
[  129.774023][   T73] 
[  129.776074][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  129.776074][   T73]      netdev_get_by_index+0x5e/0x80
[  129.776074][   T73]      fib6_nh_init+0x3d8/0x1580
[  129.776074][   T73]      ip6_route_info_create+0xf18/0x17d0
[  129.776074][   T73]      ip6_route_add+0x1c/0x140
[  129.776074][   T73]      addrconf_prefix_route+0x2a6/0x430
[  129.776074][   T73]      inet6_addr_add+0x4f8/0xa40
[  129.776074][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  129.776074][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  129.776074][   T73]      netlink_rcv_skb+0x130/0x360
[  129.776074][   T73]      netlink_unicast+0x449/0x710
[  129.776074][   T73]      netlink_sendmsg+0x723/0xbe0
[  129.776074][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  129.776074][   T73]      ___sys_sendmsg+0xee/0x170
[  129.776074][   T73]      __sys_sendmsg+0xcd/0x170
[  129.776074][   T73]      do_syscall_64+0xc6/0x1e0
[  129.776074][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  129.776074][   T73] 
[  129.778149][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  129.778149][   T73]      netdev_get_by_index+0x5e/0x80
[  129.778149][   T73]      fib6_nh_init+0x3d8/0x1580
[  129.778149][   T73]      ip6_route_info_create+0xf18/0x17d0
[  129.778149][   T73]      addrconf_f6i_alloc+0x315/0x560
[  129.778149][   T73]      ipv6_add_addr+0x411/0x2000
[  129.778149][   T73]      inet6_addr_add+0x30e/0xa40
[  129.778149][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  129.778149][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  129.778149][   T73]      netlink_rcv_skb+0x130/0x360
[  129.778149][   T73]      netlink_unicast+0x449/0x710
[  129.778149][   T73]      netlink_sendmsg+0x723/0xbe0
[  129.778149][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  129.778149][   T73]      ___sys_sendmsg+0xee/0x170
[  129.778149][   T73]      __sys_sendmsg+0xcd/0x170
[  129.778149][   T73]      do_syscall_64+0xc6/0x1e0
[  129.778149][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  129.778149][   T73] 
[  129.780260][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  129.780260][   T73]      netdev_get_by_index+0x5e/0x80
[  129.780260][   T73]      fib6_nh_init+0x3d8/0x1580
[  129.780260][   T73]      ip6_route_info_create+0xf18/0x17d0
[  129.780260][   T73]      ip6_route_add+0x1c/0x140
[  129.780260][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  129.780260][   T73]      addrconf_add_dev+0xe2/0x170
[  129.780260][   T73]      inet6_addr_add+0x12f/0xa40
[  129.780260][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  129.780260][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  129.780260][   T73]      netlink_rcv_skb+0x130/0x360
[  129.780260][   T73]      netlink_unicast+0x449/0x710
[  129.780260][   T73]      netlink_sendmsg+0x723/0xbe0
[  129.780260][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  129.780260][   T73]      ___sys_sendmsg+0xee/0x170
[  129.780260][   T73]      __sys_sendmsg+0xcd/0x170
[  129.780260][   T73]      do_syscall_64+0xc6/0x1e0
[  129.780260][   T73] 
[  129.782438][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  129.782438][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  129.782438][   T73]      ipv6_find_idev+0x102/0x170
[  129.782438][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  129.782438][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  129.782438][   T73]      netlink_rcv_skb+0x130/0x360
[  129.782438][   T73]      netlink_unicast+0x449/0x710
[  129.782438][   T73]      netlink_sendmsg+0x723/0xbe0
[  129.782438][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  129.782438][   T73]      ___sys_sendmsg+0xee/0x170
[  129.782438][   T73]      __sys_sendmsg+0xcd/0x170
[  129.782438][   T73]      do_syscall_64+0xc6/0x1e0
[  129.782438][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  129.782438][   T73] 
[  129.784170][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  129.784170][   T73]      neigh_parms_alloc+0x1e5/0x510
[  129.784170][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  129.784170][   T73]      ipv6_find_idev+0x102/0x170
[  129.784170][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  129.784170][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  129.784170][   T73]      netlink_rcv_skb+0x130/0x360
[  129.784170][   T73]      netlink_unicast+0x449/0x710
[  129.784170][   T73]      netlink_sendmsg+0x723/0xbe0
[  129.784170][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  129.784170][   T73]      ___sys_sendmsg+0xee/0x170
[  129.784170][   T73]      __sys_sendmsg+0xcd/0x170
[  129.784170][   T73]      do_syscall_64+0xc6/0x1e0
[  129.784170][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  129.784170][   T73] 
[  129.786141][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  129.786448][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  129.786448][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  129.786448][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  129.786448][   T73]      fib6_nh_init+0xa22/0x1580
[  129.786448][   T73]      ip6_route_info_create+0xf18/0x17d0
[  129.786448][   T73]      ip6_route_add+0x1c/0x140
[  129.786448][   T73]      inet6_rtm_newroute+0x104/0x110
[  129.786448][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  129.786448][   T73]      netlink_rcv_skb+0x130/0x360
[  129.786448][   T73]      netlink_unicast+0x449/0x710
[  129.786448][   T73]      netlink_sendmsg+0x723/0xbe0
[  129.786448][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  129.786448][   T73]      ___sys_sendmsg+0xee/0x170
[  129.786448][   T73]      __sys_sendmsg+0xcd/0x170
[  129.786448][   T73]      do_syscall_64+0xc6/0x1e0
[  129.786448][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  129.786448][   T73] 
[  129.788708][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  129.788708][   T73]      dst_init+0x84/0x4a0
[  129.788708][   T73]      dst_alloc+0x97/0x150
[  129.788708][   T73]      ip6_dst_alloc+0x23/0x90
[  129.788708][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  129.788708][   T73]      ip6_pol_route+0x56f/0x840
[  129.788708][   T73]      fib6_rule_lookup+0x456/0x630
[  129.788708][   T73]      ip6_route_input+0x59c/0xa50
[  129.788708][   T73]      ipv6_rcv+0x397/0x810
[  129.788708][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  129.788708][   T73]      process_backlog+0x101/0x620
[  129.788708][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  129.788708][   T73]      net_rx_action+0x495/0xbe0
[  129.788708][   T73]      __do_softirq+0x1b5/0x7f6
[  129.788708][   T73] 
[  129.790796][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  129.790796][   T73]      netdev_get_by_index+0x5e/0x80
[  129.790796][   T73]      fib6_nh_init+0x3d8/0x1580
[  129.790796][   T73]      ip6_route_info_create+0xf18/0x17d0
[  129.790796][   T73]      ip6_route_add+0x1c/0x140
[  129.790796][   T73]      addrconf_prefix_route+0x2a6/0x430
[  129.790796][   T73]      inet6_addr_add+0x4f8/0xa40
[  129.790796][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  129.790796][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  129.790796][   T73]      netlink_rcv_skb+0x130/0x360
[  129.790796][   T73]      netlink_unicast+0x449/0x710
[  129.790796][   T73]      netlink_sendmsg+0x723/0xbe0
[  129.790796][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  129.790796][   T73]      ___sys_sendmsg+0xee/0x170
[  129.790796][   T73]      __sys_sendmsg+0xcd/0x170
[  129.790796][   T73]      do_syscall_64+0xc6/0x1e0
[  129.790796][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  129.790796][   T73] 
[  129.793306][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  129.793306][   T73]      netdev_get_by_index+0x5e/0x80
[  129.793306][   T73]      fib6_nh_init+0x3d8/0x1580
[  129.793306][   T73]      ip6_route_info_create+0xf18/0x17d0
[  129.793306][   T73]      addrconf_f6i_alloc+0x315/0x560
[  129.793306][   T73]      ipv6_add_addr+0x411/0x2000
[  129.793306][   T73]      inet6_addr_add+0x30e/0xa40
[  129.793306][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  129.793306][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  129.793306][   T73]      netlink_rcv_skb+0x130/0x360
[  129.793306][   T73]      netlink_unicast+0x449/0x710
[  129.793306][   T73]      netlink_sendmsg+0x723/0xbe0
[  129.793306][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  129.793306][   T73]      ___sys_sendmsg+0xee/0x170
[  129.793306][   T73]      __sys_sendmsg+0xcd/0x170
[  129.793306][   T73]      do_syscall_64+0xc6/0x1e0
[  129.793306][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  129.793306][   T73] 
[  129.795936][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  129.795936][   T73]      netdev_get_by_index+0x5e/0x80
[  129.795936][   T73]      fib6_nh_init+0x3d8/0x1580
[  129.795936][   T73]      ip6_route_info_create+0xf18/0x17d0
[  129.795936][   T73]      ip6_route_add+0x1c/0x140
[  129.795936][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  129.795936][   T73]      addrconf_add_dev+0xe2/0x170
[  129.795936][   T73]      inet6_addr_add+0x12f/0xa40
[  129.795936][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  129.795936][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  129.795936][   T73]      netlink_rcv_skb+0x130/0x360
[  129.795936][   T73]      netlink_unicast+0x449/0x710
[  129.795936][   T73]      netlink_sendmsg+0x723/0xbe0
[  129.795936][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  129.795936][   T73]      ___sys_sendmsg+0xee/0x170
[  129.795936][   T73]      __sys_sendmsg+0xcd/0x170
[  129.795936][   T73]      do_syscall_64+0xc6/0x1e0
[  129.795936][   T73] 
[  129.798472][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  129.798472][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  129.798472][   T73]      ipv6_find_idev+0x102/0x170
[  129.798472][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  129.798472][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  129.798472][   T73]      netlink_rcv_skb+0x130/0x360
[  129.798472][   T73]      netlink_unicast+0x449/0x710
[  129.798472][   T73]      netlink_sendmsg+0x723/0xbe0
[  129.798472][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  129.798472][   T73]      ___sys_sendmsg+0xee/0x170
[  129.798472][   T73]      __sys_sendmsg+0xcd/0x170
[  129.798472][   T73]      do_syscall_64+0xc6/0x1e0
[  129.798472][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  129.798472][   T73] 
[  129.800527][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  129.800527][   T73]      neigh_parms_alloc+0x1e5/0x510
[  129.800527][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  129.800527][   T73]      ipv6_find_idev+0x102/0x170
[  129.800527][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  129.800527][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  129.800527][   T73]      netlink_rcv_skb+0x130/0x360
[  129.800527][   T73]      netlink_unicast+0x449/0x710
[  129.800527][   T73]      netlink_sendmsg+0x723/0xbe0
[  129.800527][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  129.800527][   T73]      ___sys_sendmsg+0xee/0x170
[  129.800527][   T73]      __sys_sendmsg+0xcd/0x170
[  129.800527][   T73]      do_syscall_64+0xc6/0x1e0
[  129.800527][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  129.800527][   T73] 
[  129.802678][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  129.803029][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  129.803029][   T73]      netdev_get_by_index+0x5e/0x80
[  129.803029][   T73]      fib6_nh_init+0x3d8/0x1580
[  129.803029][   T73]      ip6_route_info_create+0xf18/0x17d0
[  129.803029][   T73]      addrconf_f6i_alloc+0x265/0x560
[  129.803029][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  129.803029][   T73]      addrconf_join_anycast+0x1c0/0x220
[  129.803029][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  129.803029][   T73]      addrconf_dad_completed+0x12b/0xe20
[  129.803029][   T73]      addrconf_dad_begin+0x310/0x670
[  129.803029][   T73]      addrconf_dad_work+0x10b/0xab0
[  129.803029][   T73]      process_one_work+0x84d/0x18a0
[  129.803029][   T73]      worker_thread+0x587/0xd30
[  129.803029][   T73]      kthread+0x28a/0x350
[  129.803029][   T73]      ret_from_fork+0x31/0x70
[  129.803029][   T73]      ret_from_fork_asm+0x1a/0x30
[  129.803029][   T73] 
[  129.805451][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  129.805451][   T73]      netdev_get_by_index+0x5e/0x80
[  129.805451][   T73]      fib6_nh_init+0x3d8/0x1580
[  129.805451][   T73]      ip6_route_info_create+0xf18/0x17d0
[  129.805451][   T73]      ip6_route_add+0x1c/0x140
[  129.805451][   T73]      addrconf_prefix_route+0x2a6/0x430
[  129.805451][   T73]      inet6_addr_add+0x4f8/0xa40
[  129.805451][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  129.805451][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  129.805451][   T73]      netlink_rcv_skb+0x130/0x360
[  129.805451][   T73]      netlink_unicast+0x449/0x710
[  129.805451][   T73]      netlink_sendmsg+0x723/0xbe0
[  129.805451][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  129.805451][   T73]      ___sys_sendmsg+0xee/0x170
[  129.805451][   T73]      __sys_sendmsg+0xcd/0x170
[  129.805451][   T73]      do_syscall_64+0xc6/0x1e0
[  129.805451][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  129.805451][   T73] 
[  129.807892][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  129.807892][   T73]      netdev_get_by_index+0x5e/0x80
[  129.807892][   T73]      fib6_nh_init+0x3d8/0x1580
[  129.807892][   T73]      ip6_route_info_create+0xf18/0x17d0
[  129.807892][   T73]      addrconf_f6i_alloc+0x315/0x560
[  129.807892][   T73]      ipv6_add_addr+0x411/0x2000
[  129.807892][   T73]      inet6_addr_add+0x30e/0xa40
[  129.807892][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  129.807892][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  129.807892][   T73]      netlink_rcv_skb+0x130/0x360
[  129.807892][   T73]      netlink_unicast+0x449/0x710
[  129.807892][   T73]      netlink_sendmsg+0x723/0xbe0
[  129.807892][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  129.807892][   T73]      ___sys_sendmsg+0xee/0x170
[  129.807892][   T73]      __sys_sendmsg+0xcd/0x170
[  129.807892][   T73]      do_syscall_64+0xc6/0x1e0
[  129.807892][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  129.807892][   T73] 
[  129.810295][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  129.810295][   T73]      netdev_get_by_index+0x5e/0x80
[  129.810295][   T73]      fib6_nh_init+0x3d8/0x1580
[  129.810295][   T73]      ip6_route_info_create+0xf18/0x17d0
[  129.810295][   T73]      ip6_route_add+0x1c/0x140
[  129.810295][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  129.810295][   T73]      addrconf_add_dev+0xe2/0x170
[  129.810295][   T73]      inet6_addr_add+0x12f/0xa40
[  129.810295][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  129.810295][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  129.810295][   T73]      netlink_rcv_skb+0x130/0x360
[  129.810295][   T73]      netlink_unicast+0x449/0x710
[  129.810295][   T73]      netlink_sendmsg+0x723/0xbe0
[  129.810295][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  129.810295][   T73]      ___sys_sendmsg+0xee/0x170
[  129.810295][   T73]      __sys_sendmsg+0xcd/0x170
[  129.810295][   T73]      do_syscall_64+0xc6/0x1e0
[  129.810295][   T73] 
[  129.812612][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  129.812612][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  129.812612][   T73]      ipv6_find_idev+0x102/0x170
[  129.812612][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  129.812612][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  129.812612][   T73]      netlink_rcv_skb+0x130/0x360
[  129.812612][   T73]      netlink_unicast+0x449/0x710
[  129.812612][   T73]      netlink_sendmsg+0x723/0xbe0
[  129.812612][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  129.812612][   T73]      ___sys_sendmsg+0xee/0x170
[  129.812612][   T73]      __sys_sendmsg+0xcd/0x170
[  129.812612][   T73]      do_syscall_64+0xc6/0x1e0
[  129.812612][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  129.812612][   T73] 
[  129.814523][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  129.814523][   T73]      neigh_parms_alloc+0x1e5/0x510
[  129.814523][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  129.814523][   T73]      ipv6_find_idev+0x102/0x170
[  129.814523][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  129.814523][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  129.814523][   T73]      netlink_rcv_skb+0x130/0x360
[  129.814523][   T73]      netlink_unicast+0x449/0x710
[  129.814523][   T73]      netlink_sendmsg+0x723/0xbe0
[  129.814523][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  129.814523][   T73]      ___sys_sendmsg+0xee/0x170
[  129.814523][   T73]      __sys_sendmsg+0xcd/0x170
[  129.814523][   T73]      do_syscall_64+0xc6/0x1e0
[  129.814523][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  129.814523][   T73] 
[  139.847742][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  139.848248][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  139.848248][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  139.848248][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  139.848248][   T73]      fib6_nh_init+0xa22/0x1580
[  139.848248][   T73]      ip6_route_info_create+0xf18/0x17d0
[  139.848248][   T73]      ip6_route_add+0x1c/0x140
[  139.848248][   T73]      inet6_rtm_newroute+0x104/0x110
[  139.848248][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  139.848248][   T73]      netlink_rcv_skb+0x130/0x360
[  139.848248][   T73]      netlink_unicast+0x449/0x710
[  139.848248][   T73]      netlink_sendmsg+0x723/0xbe0
[  139.848248][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  139.848248][   T73]      ___sys_sendmsg+0xee/0x170
[  139.848248][   T73]      __sys_sendmsg+0xcd/0x170
[  139.848248][   T73]      do_syscall_64+0xc6/0x1e0
[  139.848248][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  139.848248][   T73] 
[  139.850612][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  139.850612][   T73]      dst_init+0x84/0x4a0
[  139.850612][   T73]      dst_alloc+0x97/0x150
[  139.850612][   T73]      ip6_dst_alloc+0x23/0x90
[  139.850612][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  139.850612][   T73]      ip6_pol_route+0x56f/0x840
[  139.850612][   T73]      fib6_rule_lookup+0x456/0x630
[  139.850612][   T73]      ip6_route_input+0x59c/0xa50
[  139.850612][   T73]      ipv6_rcv+0x397/0x810
[  139.850612][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  139.850612][   T73]      process_backlog+0x101/0x620
[  139.850612][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  139.850612][   T73]      net_rx_action+0x495/0xbe0
[  139.850612][   T73]      __do_softirq+0x1b5/0x7f6
[  139.850612][   T73] 
[  139.852487][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  139.852487][   T73]      netdev_get_by_index+0x5e/0x80
[  139.852487][   T73]      fib6_nh_init+0x3d8/0x1580
[  139.852487][   T73]      ip6_route_info_create+0xf18/0x17d0
[  139.852487][   T73]      ip6_route_add+0x1c/0x140
[  139.852487][   T73]      addrconf_prefix_route+0x2a6/0x430
[  139.852487][   T73]      inet6_addr_add+0x4f8/0xa40
[  139.852487][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  139.852487][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  139.852487][   T73]      netlink_rcv_skb+0x130/0x360
[  139.852487][   T73]      netlink_unicast+0x449/0x710
[  139.852487][   T73]      netlink_sendmsg+0x723/0xbe0
[  139.852487][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  139.852487][   T73]      ___sys_sendmsg+0xee/0x170
[  139.852487][   T73]      __sys_sendmsg+0xcd/0x170
[  139.852487][   T73]      do_syscall_64+0xc6/0x1e0
[  139.852487][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  139.852487][   T73] 
[  139.854771][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  139.854771][   T73]      netdev_get_by_index+0x5e/0x80
[  139.854771][   T73]      fib6_nh_init+0x3d8/0x1580
[  139.854771][   T73]      ip6_route_info_create+0xf18/0x17d0
[  139.854771][   T73]      addrconf_f6i_alloc+0x315/0x560
[  139.854771][   T73]      ipv6_add_addr+0x411/0x2000
[  139.854771][   T73]      inet6_addr_add+0x30e/0xa40
[  139.854771][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  139.854771][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  139.854771][   T73]      netlink_rcv_skb+0x130/0x360
[  139.854771][   T73]      netlink_unicast+0x449/0x710
[  139.854771][   T73]      netlink_sendmsg+0x723/0xbe0
[  139.854771][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  139.854771][   T73]      ___sys_sendmsg+0xee/0x170
[  139.854771][   T73]      __sys_sendmsg+0xcd/0x170
[  139.854771][   T73]      do_syscall_64+0xc6/0x1e0
[  139.854771][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  139.854771][   T73] 
[  139.857307][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  139.857307][   T73]      netdev_get_by_index+0x5e/0x80
[  139.857307][   T73]      fib6_nh_init+0x3d8/0x1580
[  139.857307][   T73]      ip6_route_info_create+0xf18/0x17d0
[  139.857307][   T73]      ip6_route_add+0x1c/0x140
[  139.857307][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  139.857307][   T73]      addrconf_add_dev+0xe2/0x170
[  139.857307][   T73]      inet6_addr_add+0x12f/0xa40
[  139.857307][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  139.857307][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  139.857307][   T73]      netlink_rcv_skb+0x130/0x360
[  139.857307][   T73]      netlink_unicast+0x449/0x710
[  139.857307][   T73]      netlink_sendmsg+0x723/0xbe0
[  139.857307][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  139.857307][   T73]      ___sys_sendmsg+0xee/0x170
[  139.857307][   T73]      __sys_sendmsg+0xcd/0x170
[  139.857307][   T73]      do_syscall_64+0xc6/0x1e0
[  139.857307][   T73] 
[  139.859750][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  139.859750][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  139.859750][   T73]      ipv6_find_idev+0x102/0x170
[  139.859750][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  139.859750][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  139.859750][   T73]      netlink_rcv_skb+0x130/0x360
[  139.859750][   T73]      netlink_unicast+0x449/0x710
[  139.859750][   T73]      netlink_sendmsg+0x723/0xbe0
[  139.859750][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  139.859750][   T73]      ___sys_sendmsg+0xee/0x170
[  139.859750][   T73]      __sys_sendmsg+0xcd/0x170
[  139.859750][   T73]      do_syscall_64+0xc6/0x1e0
[  139.859750][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  139.859750][   T73] 
[  139.861668][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  139.861668][   T73]      neigh_parms_alloc+0x1e5/0x510
[  139.861668][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  139.861668][   T73]      ipv6_find_idev+0x102/0x170
[  139.861668][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  139.861668][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  139.861668][   T73]      netlink_rcv_skb+0x130/0x360
[  139.861668][   T73]      netlink_unicast+0x449/0x710
[  139.861668][   T73]      netlink_sendmsg+0x723/0xbe0
[  139.861668][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  139.861668][   T73]      ___sys_sendmsg+0xee/0x170
[  139.861668][   T73]      __sys_sendmsg+0xcd/0x170
[  139.861668][   T73]      do_syscall_64+0xc6/0x1e0
[  139.861668][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  139.861668][   T73] 
[  139.863785][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  139.864130][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  139.864130][   T73]      netdev_get_by_index+0x5e/0x80
[  139.864130][   T73]      fib6_nh_init+0x3d8/0x1580
[  139.864130][   T73]      ip6_route_info_create+0xf18/0x17d0
[  139.864130][   T73]      addrconf_f6i_alloc+0x265/0x560
[  139.864130][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  139.864130][   T73]      addrconf_join_anycast+0x1c0/0x220
[  139.864130][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  139.864130][   T73]      addrconf_dad_completed+0x12b/0xe20
[  139.864130][   T73]      addrconf_dad_begin+0x310/0x670
[  139.864130][   T73]      addrconf_dad_work+0x10b/0xab0
[  139.864130][   T73]      process_one_work+0x84d/0x18a0
[  139.864130][   T73]      worker_thread+0x587/0xd30
[  139.864130][   T73]      kthread+0x28a/0x350
[  139.864130][   T73]      ret_from_fork+0x31/0x70
[  139.864130][   T73]      ret_from_fork_asm+0x1a/0x30
[  139.864130][   T73] 
[  139.866586][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  139.866586][   T73]      netdev_get_by_index+0x5e/0x80
[  139.866586][   T73]      fib6_nh_init+0x3d8/0x1580
[  139.866586][   T73]      ip6_route_info_create+0xf18/0x17d0
[  139.866586][   T73]      ip6_route_add+0x1c/0x140
[  139.866586][   T73]      addrconf_prefix_route+0x2a6/0x430
[  139.866586][   T73]      inet6_addr_add+0x4f8/0xa40
[  139.866586][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  139.866586][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  139.866586][   T73]      netlink_rcv_skb+0x130/0x360
[  139.866586][   T73]      netlink_unicast+0x449/0x710
[  139.866586][   T73]      netlink_sendmsg+0x723/0xbe0
[  139.866586][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  139.866586][   T73]      ___sys_sendmsg+0xee/0x170
[  139.866586][   T73]      __sys_sendmsg+0xcd/0x170
[  139.866586][   T73]      do_syscall_64+0xc6/0x1e0
[  139.866586][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  139.866586][   T73] 
[  139.869119][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  139.869119][   T73]      netdev_get_by_index+0x5e/0x80
[  139.869119][   T73]      fib6_nh_init+0x3d8/0x1580
[  139.869119][   T73]      ip6_route_info_create+0xf18/0x17d0
[  139.869119][   T73]      addrconf_f6i_alloc+0x315/0x560
[  139.869119][   T73]      ipv6_add_addr+0x411/0x2000
[  139.869119][   T73]      inet6_addr_add+0x30e/0xa40
[  139.869119][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  139.869119][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  139.869119][   T73]      netlink_rcv_skb+0x130/0x360
[  139.869119][   T73]      netlink_unicast+0x449/0x710
[  139.869119][   T73]      netlink_sendmsg+0x723/0xbe0
[  139.869119][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  139.869119][   T73]      ___sys_sendmsg+0xee/0x170
[  139.869119][   T73]      __sys_sendmsg+0xcd/0x170
[  139.869119][   T73]      do_syscall_64+0xc6/0x1e0
[  139.869119][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  139.869119][   T73] 
[  139.871631][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  139.871631][   T73]      netdev_get_by_index+0x5e/0x80
[  139.871631][   T73]      fib6_nh_init+0x3d8/0x1580
[  139.871631][   T73]      ip6_route_info_create+0xf18/0x17d0
[  139.871631][   T73]      ip6_route_add+0x1c/0x140
[  139.871631][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  139.871631][   T73]      addrconf_add_dev+0xe2/0x170
[  139.871631][   T73]      inet6_addr_add+0x12f/0xa40
[  139.871631][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  139.871631][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  139.871631][   T73]      netlink_rcv_skb+0x130/0x360
[  139.871631][   T73]      netlink_unicast+0x449/0x710
[  139.871631][   T73]      netlink_sendmsg+0x723/0xbe0
[  139.871631][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  139.871631][   T73]      ___sys_sendmsg+0xee/0x170
[  139.871631][   T73]      __sys_sendmsg+0xcd/0x170
[  139.871631][   T73]      do_syscall_64+0xc6/0x1e0
[  139.871631][   T73] 
[  139.874093][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  139.874093][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  139.874093][   T73]      ipv6_find_idev+0x102/0x170
[  139.874093][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  139.874093][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  139.874093][   T73]      netlink_rcv_skb+0x130/0x360
[  139.874093][   T73]      netlink_unicast+0x449/0x710
[  139.874093][   T73]      netlink_sendmsg+0x723/0xbe0
[  139.874093][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  139.874093][   T73]      ___sys_sendmsg+0xee/0x170
[  139.874093][   T73]      __sys_sendmsg+0xcd/0x170
[  139.874093][   T73]      do_syscall_64+0xc6/0x1e0
[  139.874093][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  139.874093][   T73] 
[  139.876063][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  139.876063][   T73]      neigh_parms_alloc+0x1e5/0x510
[  139.876063][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  139.876063][   T73]      ipv6_find_idev+0x102/0x170
[  139.876063][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  139.876063][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  139.876063][   T73]      netlink_rcv_skb+0x130/0x360
[  139.876063][   T73]      netlink_unicast+0x449/0x710
[  139.876063][   T73]      netlink_sendmsg+0x723/0xbe0
[  139.876063][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  139.876063][   T73]      ___sys_sendmsg+0xee/0x170
[  139.876063][   T73]      __sys_sendmsg+0xcd/0x170
[  139.876063][   T73]      do_syscall_64+0xc6/0x1e0
[  139.876063][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  139.876063][   T73] 
[  139.878166][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  139.878500][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  139.878500][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  139.878500][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  139.878500][   T73]      fib6_nh_init+0xa22/0x1580
[  139.878500][   T73]      ip6_route_info_create+0xf18/0x17d0
[  139.878500][   T73]      ip6_route_add+0x1c/0x140
[  139.878500][   T73]      inet6_rtm_newroute+0x104/0x110
[  139.878500][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  139.878500][   T73]      netlink_rcv_skb+0x130/0x360
[  139.878500][   T73]      netlink_unicast+0x449/0x710
[  139.878500][   T73]      netlink_sendmsg+0x723/0xbe0
[  139.878500][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  139.878500][   T73]      ___sys_sendmsg+0xee/0x170
[  139.878500][   T73]      __sys_sendmsg+0xcd/0x170
[  139.878500][   T73]      do_syscall_64+0xc6/0x1e0
[  139.878500][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  139.878500][   T73] 
[  139.880955][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  139.880955][   T73]      dst_init+0x84/0x4a0
[  139.880955][   T73]      dst_alloc+0x97/0x150
[  139.880955][   T73]      ip6_dst_alloc+0x23/0x90
[  139.880955][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  139.880955][   T73]      ip6_pol_route+0x56f/0x840
[  139.880955][   T73]      fib6_rule_lookup+0x456/0x630
[  139.880955][   T73]      ip6_route_input+0x59c/0xa50
[  139.880955][   T73]      ipv6_rcv+0x397/0x810
[  139.880955][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  139.880955][   T73]      process_backlog+0x101/0x620
[  139.880955][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  139.880955][   T73]      net_rx_action+0x495/0xbe0
[  139.880955][   T73]      __do_softirq+0x1b5/0x7f6
[  139.880955][   T73] 
[  139.883234][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  139.883234][   T73]      netdev_get_by_index+0x5e/0x80
[  139.883234][   T73]      fib6_nh_init+0x3d8/0x1580
[  139.883234][   T73]      ip6_route_info_create+0xf18/0x17d0
[  139.883234][   T73]      ip6_route_add+0x1c/0x140
[  139.883234][   T73]      addrconf_prefix_route+0x2a6/0x430
[  139.883234][   T73]      inet6_addr_add+0x4f8/0xa40
[  139.883234][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  139.883234][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  139.883234][   T73]      netlink_rcv_skb+0x130/0x360
[  139.883234][   T73]      netlink_unicast+0x449/0x710
[  139.883234][   T73]      netlink_sendmsg+0x723/0xbe0
[  139.883234][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  139.883234][   T73]      ___sys_sendmsg+0xee/0x170
[  139.883234][   T73]      __sys_sendmsg+0xcd/0x170
[  139.883234][   T73]      do_syscall_64+0xc6/0x1e0
[  139.883234][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  139.883234][   T73] 
[  139.885904][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  139.885904][   T73]      netdev_get_by_index+0x5e/0x80
[  139.885904][   T73]      fib6_nh_init+0x3d8/0x1580
[  139.885904][   T73]      ip6_route_info_create+0xf18/0x17d0
[  139.885904][   T73]      addrconf_f6i_alloc+0x315/0x560
[  139.885904][   T73]      ipv6_add_addr+0x411/0x2000
[  139.885904][   T73]      inet6_addr_add+0x30e/0xa40
[  139.885904][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  139.885904][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  139.885904][   T73]      netlink_rcv_skb+0x130/0x360
[  139.885904][   T73]      netlink_unicast+0x449/0x710
[  139.885904][   T73]      netlink_sendmsg+0x723/0xbe0
[  139.885904][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  139.885904][   T73]      ___sys_sendmsg+0xee/0x170
[  139.885904][   T73]      __sys_sendmsg+0xcd/0x170
[  139.885904][   T73]      do_syscall_64+0xc6/0x1e0
[  139.885904][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  139.885904][   T73] 
[  139.888618][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  139.888618][   T73]      netdev_get_by_index+0x5e/0x80
[  139.888618][   T73]      fib6_nh_init+0x3d8/0x1580
[  139.888618][   T73]      ip6_route_info_create+0xf18/0x17d0
[  139.888618][   T73]      ip6_route_add+0x1c/0x140
[  139.888618][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  139.888618][   T73]      addrconf_add_dev+0xe2/0x170
[  139.888618][   T73]      inet6_addr_add+0x12f/0xa40
[  139.888618][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  139.888618][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  139.888618][   T73]      netlink_rcv_skb+0x130/0x360
[  139.888618][   T73]      netlink_unicast+0x449/0x710
[  139.888618][   T73]      netlink_sendmsg+0x723/0xbe0
[  139.888618][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  139.888618][   T73]      ___sys_sendmsg+0xee/0x170
[  139.888618][   T73]      __sys_sendmsg+0xcd/0x170
[  139.888618][   T73]      do_syscall_64+0xc6/0x1e0
[  139.888618][   T73] 
[  139.891347][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  139.891347][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  139.891347][   T73]      ipv6_find_idev+0x102/0x170
[  139.891347][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  139.891347][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  139.891347][   T73]      netlink_rcv_skb+0x130/0x360
[  139.891347][   T73]      netlink_unicast+0x449/0x710
[  139.891347][   T73]      netlink_sendmsg+0x723/0xbe0
[  139.891347][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  139.891347][   T73]      ___sys_sendmsg+0xee/0x170
[  139.891347][   T73]      __sys_sendmsg+0xcd/0x170
[  139.891347][   T73]      do_syscall_64+0xc6/0x1e0
[  139.891347][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  139.891347][   T73] 
[  139.893438][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  139.893438][   T73]      neigh_parms_alloc+0x1e5/0x510
[  139.893438][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  139.893438][   T73]      ipv6_find_idev+0x102/0x170
[  139.893438][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  139.893438][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  139.893438][   T73]      netlink_rcv_skb+0x130/0x360
[  139.893438][   T73]      netlink_unicast+0x449/0x710
[  139.893438][   T73]      netlink_sendmsg+0x723/0xbe0
[  139.893438][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  139.893438][   T73]      ___sys_sendmsg+0xee/0x170
[  139.893438][   T73]      __sys_sendmsg+0xcd/0x170
[  139.893438][   T73]      do_syscall_64+0xc6/0x1e0
[  139.893438][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  139.893438][   T73] 
[  139.895738][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  139.896205][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  139.896205][   T73]      netdev_get_by_index+0x5e/0x80
[  139.896205][   T73]      fib6_nh_init+0x3d8/0x1580
[  139.896205][   T73]      ip6_route_info_create+0xf18/0x17d0
[  139.896205][   T73]      addrconf_f6i_alloc+0x265/0x560
[  139.896205][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  139.896205][   T73]      addrconf_join_anycast+0x1c0/0x220
[  139.896205][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  139.896205][   T73]      addrconf_dad_completed+0x12b/0xe20
[  139.896205][   T73]      addrconf_dad_begin+0x310/0x670
[  139.896205][   T73]      addrconf_dad_work+0x10b/0xab0
[  139.896205][   T73]      process_one_work+0x84d/0x18a0
[  139.896205][   T73]      worker_thread+0x587/0xd30
[  139.896205][   T73]      kthread+0x28a/0x350
[  139.896205][   T73]      ret_from_fork+0x31/0x70
[  139.896205][   T73]      ret_from_fork_asm+0x1a/0x30
[  139.896205][   T73] 
[  139.898756][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  139.898756][   T73]      netdev_get_by_index+0x5e/0x80
[  139.898756][   T73]      fib6_nh_init+0x3d8/0x1580
[  139.898756][   T73]      ip6_route_info_create+0xf18/0x17d0
[  139.898756][   T73]      ip6_route_add+0x1c/0x140
[  139.898756][   T73]      addrconf_prefix_route+0x2a6/0x430
[  139.898756][   T73]      inet6_addr_add+0x4f8/0xa40
[  139.898756][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  139.898756][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  139.898756][   T73]      netlink_rcv_skb+0x130/0x360
[  139.898756][   T73]      netlink_unicast+0x449/0x710
[  139.898756][   T73]      netlink_sendmsg+0x723/0xbe0
[  139.898756][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  139.898756][   T73]      ___sys_sendmsg+0xee/0x170
[  139.898756][   T73]      __sys_sendmsg+0xcd/0x170
[  139.898756][   T73]      do_syscall_64+0xc6/0x1e0
[  139.898756][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  139.898756][   T73] 
[  139.901458][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  139.901458][   T73]      netdev_get_by_index+0x5e/0x80
[  139.901458][   T73]      fib6_nh_init+0x3d8/0x1580
[  139.901458][   T73]      ip6_route_info_create+0xf18/0x17d0
[  139.901458][   T73]      addrconf_f6i_alloc+0x315/0x560
[  139.901458][   T73]      ipv6_add_addr+0x411/0x2000
[  139.901458][   T73]      inet6_addr_add+0x30e/0xa40
[  139.901458][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  139.901458][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  139.901458][   T73]      netlink_rcv_skb+0x130/0x360
[  139.901458][   T73]      netlink_unicast+0x449/0x710
[  139.901458][   T73]      netlink_sendmsg+0x723/0xbe0
[  139.901458][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  139.901458][   T73]      ___sys_sendmsg+0xee/0x170
[  139.901458][   T73]      __sys_sendmsg+0xcd/0x170
[  139.901458][   T73]      do_syscall_64+0xc6/0x1e0
[  139.901458][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  139.901458][   T73] 
[  139.904242][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  139.904242][   T73]      netdev_get_by_index+0x5e/0x80
[  139.904242][   T73]      fib6_nh_init+0x3d8/0x1580
[  139.904242][   T73]      ip6_route_info_create+0xf18/0x17d0
[  139.904242][   T73]      ip6_route_add+0x1c/0x140
[  139.904242][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  139.904242][   T73]      addrconf_add_dev+0xe2/0x170
[  139.904242][   T73]      inet6_addr_add+0x12f/0xa40
[  139.904242][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  139.904242][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  139.904242][   T73]      netlink_rcv_skb+0x130/0x360
[  139.904242][   T73]      netlink_unicast+0x449/0x710
[  139.904242][   T73]      netlink_sendmsg+0x723/0xbe0
[  139.904242][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  139.904242][   T73]      ___sys_sendmsg+0xee/0x170
[  139.904242][   T73]      __sys_sendmsg+0xcd/0x170
[  139.904242][   T73]      do_syscall_64+0xc6/0x1e0
[  139.904242][   T73] 
[  139.907348][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  139.907348][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  139.907348][   T73]      ipv6_find_idev+0x102/0x170
[  139.907348][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  139.907348][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  139.907348][   T73]      netlink_rcv_skb+0x130/0x360
[  139.907348][   T73]      netlink_unicast+0x449/0x710
[  139.907348][   T73]      netlink_sendmsg+0x723/0xbe0
[  139.907348][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  139.907348][   T73]      ___sys_sendmsg+0xee/0x170
[  139.907348][   T73]      __sys_sendmsg+0xcd/0x170
[  139.907348][   T73]      do_syscall_64+0xc6/0x1e0
[  139.907348][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  139.907348][   T73] 
[  139.909434][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  139.909434][   T73]      neigh_parms_alloc+0x1e5/0x510
[  139.909434][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  139.909434][   T73]      ipv6_find_idev+0x102/0x170
[  139.909434][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  139.909434][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  139.909434][   T73]      netlink_rcv_skb+0x130/0x360
[  139.909434][   T73]      netlink_unicast+0x449/0x710
[  139.909434][   T73]      netlink_sendmsg+0x723/0xbe0
[  139.909434][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  139.909434][   T73]      ___sys_sendmsg+0xee/0x170
[  139.909434][   T73]      __sys_sendmsg+0xcd/0x170
[  139.909434][   T73]      do_syscall_64+0xc6/0x1e0
[  139.909434][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  139.909434][   T73] 
[  150.151841][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  150.152431][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  150.152431][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  150.152431][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  150.152431][   T73]      fib6_nh_init+0xa22/0x1580
[  150.152431][   T73]      ip6_route_info_create+0xf18/0x17d0
[  150.152431][   T73]      ip6_route_add+0x1c/0x140
[  150.152431][   T73]      inet6_rtm_newroute+0x104/0x110
[  150.152431][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  150.152431][   T73]      netlink_rcv_skb+0x130/0x360
[  150.152431][   T73]      netlink_unicast+0x449/0x710
[  150.152431][   T73]      netlink_sendmsg+0x723/0xbe0
[  150.152431][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  150.152431][   T73]      ___sys_sendmsg+0xee/0x170
[  150.152431][   T73]      __sys_sendmsg+0xcd/0x170
[  150.152431][   T73]      do_syscall_64+0xc6/0x1e0
[  150.152431][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  150.152431][   T73] 
[  150.155542][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  150.155542][   T73]      dst_init+0x84/0x4a0
[  150.155542][   T73]      dst_alloc+0x97/0x150
[  150.155542][   T73]      ip6_dst_alloc+0x23/0x90
[  150.155542][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  150.155542][   T73]      ip6_pol_route+0x56f/0x840
[  150.155542][   T73]      fib6_rule_lookup+0x456/0x630
[  150.155542][   T73]      ip6_route_input+0x59c/0xa50
[  150.155542][   T73]      ipv6_rcv+0x397/0x810
[  150.155542][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  150.155542][   T73]      process_backlog+0x101/0x620
[  150.155542][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  150.155542][   T73]      net_rx_action+0x495/0xbe0
[  150.155542][   T73]      __do_softirq+0x1b5/0x7f6
[  150.155542][   T73] 
[  150.158212][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  150.158212][   T73]      netdev_get_by_index+0x5e/0x80
[  150.158212][   T73]      fib6_nh_init+0x3d8/0x1580
[  150.158212][   T73]      ip6_route_info_create+0xf18/0x17d0
[  150.158212][   T73]      ip6_route_add+0x1c/0x140
[  150.158212][   T73]      addrconf_prefix_route+0x2a6/0x430
[  150.158212][   T73]      inet6_addr_add+0x4f8/0xa40
[  150.158212][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  150.158212][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  150.158212][   T73]      netlink_rcv_skb+0x130/0x360
[  150.158212][   T73]      netlink_unicast+0x449/0x710
[  150.158212][   T73]      netlink_sendmsg+0x723/0xbe0
[  150.158212][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  150.158212][   T73]      ___sys_sendmsg+0xee/0x170
[  150.158212][   T73]      __sys_sendmsg+0xcd/0x170
[  150.158212][   T73]      do_syscall_64+0xc6/0x1e0
[  150.158212][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  150.158212][   T73] 
[  150.161437][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  150.161437][   T73]      netdev_get_by_index+0x5e/0x80
[  150.161437][   T73]      fib6_nh_init+0x3d8/0x1580
[  150.161437][   T73]      ip6_route_info_create+0xf18/0x17d0
[  150.161437][   T73]      addrconf_f6i_alloc+0x315/0x560
[  150.161437][   T73]      ipv6_add_addr+0x411/0x2000
[  150.161437][   T73]      inet6_addr_add+0x30e/0xa40
[  150.161437][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  150.161437][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  150.161437][   T73]      netlink_rcv_skb+0x130/0x360
[  150.161437][   T73]      netlink_unicast+0x449/0x710
[  150.161437][   T73]      netlink_sendmsg+0x723/0xbe0
[  150.161437][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  150.161437][   T73]      ___sys_sendmsg+0xee/0x170
[  150.161437][   T73]      __sys_sendmsg+0xcd/0x170
[  150.161437][   T73]      do_syscall_64+0xc6/0x1e0
[  150.161437][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  150.161437][   T73] 
[  150.163680][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  150.163680][   T73]      netdev_get_by_index+0x5e/0x80
[  150.163680][   T73]      fib6_nh_init+0x3d8/0x1580
[  150.163680][   T73]      ip6_route_info_create+0xf18/0x17d0
[  150.163680][   T73]      ip6_route_add+0x1c/0x140
[  150.163680][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  150.163680][   T73]      addrconf_add_dev+0xe2/0x170
[  150.163680][   T73]      inet6_addr_add+0x12f/0xa40
[  150.163680][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  150.163680][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  150.163680][   T73]      netlink_rcv_skb+0x130/0x360
[  150.163680][   T73]      netlink_unicast+0x449/0x710
[  150.163680][   T73]      netlink_sendmsg+0x723/0xbe0
[  150.163680][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  150.163680][   T73]      ___sys_sendmsg+0xee/0x170
[  150.163680][   T73]      __sys_sendmsg+0xcd/0x170
[  150.163680][   T73]      do_syscall_64+0xc6/0x1e0
[  150.163680][   T73] 
[  150.165783][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  150.165783][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  150.165783][   T73]      ipv6_find_idev+0x102/0x170
[  150.165783][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  150.165783][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  150.165783][   T73]      netlink_rcv_skb+0x130/0x360
[  150.165783][   T73]      netlink_unicast+0x449/0x710
[  150.165783][   T73]      netlink_sendmsg+0x723/0xbe0
[  150.165783][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  150.165783][   T73]      ___sys_sendmsg+0xee/0x170
[  150.165783][   T73]      __sys_sendmsg+0xcd/0x170
[  150.165783][   T73]      do_syscall_64+0xc6/0x1e0
[  150.165783][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  150.165783][   T73] 
[  150.167421][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  150.167421][   T73]      neigh_parms_alloc+0x1e5/0x510
[  150.167421][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  150.167421][   T73]      ipv6_find_idev+0x102/0x170
[  150.167421][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  150.167421][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  150.167421][   T73]      netlink_rcv_skb+0x130/0x360
[  150.167421][   T73]      netlink_unicast+0x449/0x710
[  150.167421][   T73]      netlink_sendmsg+0x723/0xbe0
[  150.167421][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  150.167421][   T73]      ___sys_sendmsg+0xee/0x170
[  150.167421][   T73]      __sys_sendmsg+0xcd/0x170
[  150.167421][   T73]      do_syscall_64+0xc6/0x1e0
[  150.167421][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  150.167421][   T73] 
[  150.169374][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  150.169687][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  150.169687][   T73]      netdev_get_by_index+0x5e/0x80
[  150.169687][   T73]      fib6_nh_init+0x3d8/0x1580
[  150.169687][   T73]      ip6_route_info_create+0xf18/0x17d0
[  150.169687][   T73]      addrconf_f6i_alloc+0x265/0x560
[  150.169687][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  150.169687][   T73]      addrconf_join_anycast+0x1c0/0x220
[  150.169687][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  150.169687][   T73]      addrconf_dad_completed+0x12b/0xe20
[  150.169687][   T73]      addrconf_dad_begin+0x310/0x670
[  150.169687][   T73]      addrconf_dad_work+0x10b/0xab0
[  150.169687][   T73]      process_one_work+0x84d/0x18a0
[  150.169687][   T73]      worker_thread+0x587/0xd30
[  150.169687][   T73]      kthread+0x28a/0x350
[  150.169687][   T73]      ret_from_fork+0x31/0x70
[  150.169687][   T73]      ret_from_fork_asm+0x1a/0x30
[  150.169687][   T73] 
[  150.171705][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  150.171705][   T73]      netdev_get_by_index+0x5e/0x80
[  150.171705][   T73]      fib6_nh_init+0x3d8/0x1580
[  150.171705][   T73]      ip6_route_info_create+0xf18/0x17d0
[  150.171705][   T73]      ip6_route_add+0x1c/0x140
[  150.171705][   T73]      addrconf_prefix_route+0x2a6/0x430
[  150.171705][   T73]      inet6_addr_add+0x4f8/0xa40
[  150.171705][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  150.171705][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  150.171705][   T73]      netlink_rcv_skb+0x130/0x360
[  150.171705][   T73]      netlink_unicast+0x449/0x710
[  150.171705][   T73]      netlink_sendmsg+0x723/0xbe0
[  150.171705][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  150.171705][   T73]      ___sys_sendmsg+0xee/0x170
[  150.171705][   T73]      __sys_sendmsg+0xcd/0x170
[  150.171705][   T73]      do_syscall_64+0xc6/0x1e0
[  150.171705][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  150.171705][   T73] 
[  150.173865][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  150.173865][   T73]      netdev_get_by_index+0x5e/0x80
[  150.173865][   T73]      fib6_nh_init+0x3d8/0x1580
[  150.173865][   T73]      ip6_route_info_create+0xf18/0x17d0
[  150.173865][   T73]      addrconf_f6i_alloc+0x315/0x560
[  150.173865][   T73]      ipv6_add_addr+0x411/0x2000
[  150.173865][   T73]      inet6_addr_add+0x30e/0xa40
[  150.173865][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  150.173865][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  150.173865][   T73]      netlink_rcv_skb+0x130/0x360
[  150.173865][   T73]      netlink_unicast+0x449/0x710
[  150.173865][   T73]      netlink_sendmsg+0x723/0xbe0
[  150.173865][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  150.173865][   T73]      ___sys_sendmsg+0xee/0x170
[  150.173865][   T73]      __sys_sendmsg+0xcd/0x170
[  150.173865][   T73]      do_syscall_64+0xc6/0x1e0
[  150.173865][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  150.173865][   T73] 
[  150.176062][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  150.176062][   T73]      netdev_get_by_index+0x5e/0x80
[  150.176062][   T73]      fib6_nh_init+0x3d8/0x1580
[  150.176062][   T73]      ip6_route_info_create+0xf18/0x17d0
[  150.176062][   T73]      ip6_route_add+0x1c/0x140
[  150.176062][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  150.176062][   T73]      addrconf_add_dev+0xe2/0x170
[  150.176062][   T73]      inet6_addr_add+0x12f/0xa40
[  150.176062][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  150.176062][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  150.176062][   T73]      netlink_rcv_skb+0x130/0x360
[  150.176062][   T73]      netlink_unicast+0x449/0x710
[  150.176062][   T73]      netlink_sendmsg+0x723/0xbe0
[  150.176062][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  150.176062][   T73]      ___sys_sendmsg+0xee/0x170
[  150.176062][   T73]      __sys_sendmsg+0xcd/0x170
[  150.176062][   T73]      do_syscall_64+0xc6/0x1e0
[  150.176062][   T73] 
[  150.178116][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  150.178116][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  150.178116][   T73]      ipv6_find_idev+0x102/0x170
[  150.178116][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  150.178116][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  150.178116][   T73]      netlink_rcv_skb+0x130/0x360
[  150.178116][   T73]      netlink_unicast+0x449/0x710
[  150.178116][   T73]      netlink_sendmsg+0x723/0xbe0
[  150.178116][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  150.178116][   T73]      ___sys_sendmsg+0xee/0x170
[  150.178116][   T73]      __sys_sendmsg+0xcd/0x170
[  150.178116][   T73]      do_syscall_64+0xc6/0x1e0
[  150.178116][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  150.178116][   T73] 
[  150.179763][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  150.179763][   T73]      neigh_parms_alloc+0x1e5/0x510
[  150.179763][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  150.179763][   T73]      ipv6_find_idev+0x102/0x170
[  150.179763][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  150.179763][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  150.179763][   T73]      netlink_rcv_skb+0x130/0x360
[  150.179763][   T73]      netlink_unicast+0x449/0x710
[  150.179763][   T73]      netlink_sendmsg+0x723/0xbe0
[  150.179763][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  150.179763][   T73]      ___sys_sendmsg+0xee/0x170
[  150.179763][   T73]      __sys_sendmsg+0xcd/0x170
[  150.179763][   T73]      do_syscall_64+0xc6/0x1e0
[  150.179763][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  150.179763][   T73] 
[  150.181630][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  150.181940][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  150.181940][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  150.181940][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  150.181940][   T73]      fib6_nh_init+0xa22/0x1580
[  150.181940][   T73]      ip6_route_info_create+0xf18/0x17d0
[  150.181940][   T73]      ip6_route_add+0x1c/0x140
[  150.181940][   T73]      inet6_rtm_newroute+0x104/0x110
[  150.181940][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  150.181940][   T73]      netlink_rcv_skb+0x130/0x360
[  150.181940][   T73]      netlink_unicast+0x449/0x710
[  150.181940][   T73]      netlink_sendmsg+0x723/0xbe0
[  150.181940][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  150.181940][   T73]      ___sys_sendmsg+0xee/0x170
[  150.181940][   T73]      __sys_sendmsg+0xcd/0x170
[  150.181940][   T73]      do_syscall_64+0xc6/0x1e0
[  150.181940][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  150.181940][   T73] 
[  150.184018][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  150.184018][   T73]      dst_init+0x84/0x4a0
[  150.184018][   T73]      dst_alloc+0x97/0x150
[  150.184018][   T73]      ip6_dst_alloc+0x23/0x90
[  150.184018][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  150.184018][   T73]      ip6_pol_route+0x56f/0x840
[  150.184018][   T73]      fib6_rule_lookup+0x456/0x630
[  150.184018][   T73]      ip6_route_input+0x59c/0xa50
[  150.184018][   T73]      ipv6_rcv+0x397/0x810
[  150.184018][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  150.184018][   T73]      process_backlog+0x101/0x620
[  150.184018][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  150.184018][   T73]      net_rx_action+0x495/0xbe0
[  150.184018][   T73]      __do_softirq+0x1b5/0x7f6
[  150.184018][   T73] 
[  150.186046][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  150.186046][   T73]      netdev_get_by_index+0x5e/0x80
[  150.186046][   T73]      fib6_nh_init+0x3d8/0x1580
[  150.186046][   T73]      ip6_route_info_create+0xf18/0x17d0
[  150.186046][   T73]      ip6_route_add+0x1c/0x140
[  150.186046][   T73]      addrconf_prefix_route+0x2a6/0x430
[  150.186046][   T73]      inet6_addr_add+0x4f8/0xa40
[  150.186046][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  150.186046][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  150.186046][   T73]      netlink_rcv_skb+0x130/0x360
[  150.186046][   T73]      netlink_unicast+0x449/0x710
[  150.186046][   T73]      netlink_sendmsg+0x723/0xbe0
[  150.186046][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  150.186046][   T73]      ___sys_sendmsg+0xee/0x170
[  150.186046][   T73]      __sys_sendmsg+0xcd/0x170
[  150.186046][   T73]      do_syscall_64+0xc6/0x1e0
[  150.186046][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  150.186046][   T73] 
[  150.188384][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  150.188384][   T73]      netdev_get_by_index+0x5e/0x80
[  150.188384][   T73]      fib6_nh_init+0x3d8/0x1580
[  150.188384][   T73]      ip6_route_info_create+0xf18/0x17d0
[  150.188384][   T73]      addrconf_f6i_alloc+0x315/0x560
[  150.188384][   T73]      ipv6_add_addr+0x411/0x2000
[  150.188384][   T73]      inet6_addr_add+0x30e/0xa40
[  150.188384][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  150.188384][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  150.188384][   T73]      netlink_rcv_skb+0x130/0x360
[  150.188384][   T73]      netlink_unicast+0x449/0x710
[  150.188384][   T73]      netlink_sendmsg+0x723/0xbe0
[  150.188384][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  150.188384][   T73]      ___sys_sendmsg+0xee/0x170
[  150.188384][   T73]      __sys_sendmsg+0xcd/0x170
[  150.188384][   T73]      do_syscall_64+0xc6/0x1e0
[  150.188384][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  150.188384][   T73] 
[  150.190635][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  150.190635][   T73]      netdev_get_by_index+0x5e/0x80
[  150.190635][   T73]      fib6_nh_init+0x3d8/0x1580
[  150.190635][   T73]      ip6_route_info_create+0xf18/0x17d0
[  150.190635][   T73]      ip6_route_add+0x1c/0x140
[  150.190635][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  150.190635][   T73]      addrconf_add_dev+0xe2/0x170
[  150.190635][   T73]      inet6_addr_add+0x12f/0xa40
[  150.190635][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  150.190635][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  150.190635][   T73]      netlink_rcv_skb+0x130/0x360
[  150.190635][   T73]      netlink_unicast+0x449/0x710
[  150.190635][   T73]      netlink_sendmsg+0x723/0xbe0
[  150.190635][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  150.190635][   T73]      ___sys_sendmsg+0xee/0x170
[  150.190635][   T73]      __sys_sendmsg+0xcd/0x170
[  150.190635][   T73]      do_syscall_64+0xc6/0x1e0
[  150.190635][   T73] 
[  150.193045][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  150.193045][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  150.193045][   T73]      ipv6_find_idev+0x102/0x170
[  150.193045][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  150.193045][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  150.193045][   T73]      netlink_rcv_skb+0x130/0x360
[  150.193045][   T73]      netlink_unicast+0x449/0x710
[  150.193045][   T73]      netlink_sendmsg+0x723/0xbe0
[  150.193045][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  150.193045][   T73]      ___sys_sendmsg+0xee/0x170
[  150.193045][   T73]      __sys_sendmsg+0xcd/0x170
[  150.193045][   T73]      do_syscall_64+0xc6/0x1e0
[  150.193045][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  150.193045][   T73] 
[  150.195793][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  150.195793][   T73]      neigh_parms_alloc+0x1e5/0x510
[  150.195793][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  150.195793][   T73]      ipv6_find_idev+0x102/0x170
[  150.195793][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  150.195793][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  150.195793][   T73]      netlink_rcv_skb+0x130/0x360
[  150.195793][   T73]      netlink_unicast+0x449/0x710
[  150.195793][   T73]      netlink_sendmsg+0x723/0xbe0
[  150.195793][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  150.195793][   T73]      ___sys_sendmsg+0xee/0x170
[  150.195793][   T73]      __sys_sendmsg+0xcd/0x170
[  150.195793][   T73]      do_syscall_64+0xc6/0x1e0
[  150.195793][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  150.195793][   T73] 
[  150.198837][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  150.199410][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  150.199410][   T73]      netdev_get_by_index+0x5e/0x80
[  150.199410][   T73]      fib6_nh_init+0x3d8/0x1580
[  150.199410][   T73]      ip6_route_info_create+0xf18/0x17d0
[  150.199410][   T73]      addrconf_f6i_alloc+0x265/0x560
[  150.199410][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  150.199410][   T73]      addrconf_join_anycast+0x1c0/0x220
[  150.199410][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  150.199410][   T73]      addrconf_dad_completed+0x12b/0xe20
[  150.199410][   T73]      addrconf_dad_begin+0x310/0x670
[  150.199410][   T73]      addrconf_dad_work+0x10b/0xab0
[  150.199410][   T73]      process_one_work+0x84d/0x18a0
[  150.199410][   T73]      worker_thread+0x587/0xd30
[  150.199410][   T73]      kthread+0x28a/0x350
[  150.199410][   T73]      ret_from_fork+0x31/0x70
[  150.199410][   T73]      ret_from_fork_asm+0x1a/0x30
[  150.199410][   T73] 
[  150.201805][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  150.201805][   T73]      netdev_get_by_index+0x5e/0x80
[  150.201805][   T73]      fib6_nh_init+0x3d8/0x1580
[  150.201805][   T73]      ip6_route_info_create+0xf18/0x17d0
[  150.201805][   T73]      ip6_route_add+0x1c/0x140
[  150.201805][   T73]      addrconf_prefix_route+0x2a6/0x430
[  150.201805][   T73]      inet6_addr_add+0x4f8/0xa40
[  150.201805][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  150.201805][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  150.201805][   T73]      netlink_rcv_skb+0x130/0x360
[  150.201805][   T73]      netlink_unicast+0x449/0x710
[  150.201805][   T73]      netlink_sendmsg+0x723/0xbe0
[  150.201805][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  150.201805][   T73]      ___sys_sendmsg+0xee/0x170
[  150.201805][   T73]      __sys_sendmsg+0xcd/0x170
[  150.201805][   T73]      do_syscall_64+0xc6/0x1e0
[  150.201805][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  150.201805][   T73] 
[  150.204526][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  150.204526][   T73]      netdev_get_by_index+0x5e/0x80
[  150.204526][   T73]      fib6_nh_init+0x3d8/0x1580
[  150.204526][   T73]      ip6_route_info_create+0xf18/0x17d0
[  150.204526][   T73]      addrconf_f6i_alloc+0x315/0x560
[  150.204526][   T73]      ipv6_add_addr+0x411/0x2000
[  150.204526][   T73]      inet6_addr_add+0x30e/0xa40
[  150.204526][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  150.204526][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  150.204526][   T73]      netlink_rcv_skb+0x130/0x360
[  150.204526][   T73]      netlink_unicast+0x449/0x710
[  150.204526][   T73]      netlink_sendmsg+0x723/0xbe0
[  150.204526][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  150.204526][   T73]      ___sys_sendmsg+0xee/0x170
[  150.204526][   T73]      __sys_sendmsg+0xcd/0x170
[  150.204526][   T73]      do_syscall_64+0xc6/0x1e0
[  150.204526][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  150.204526][   T73] 
[  150.207791][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  150.207791][   T73]      netdev_get_by_index+0x5e/0x80
[  150.207791][   T73]      fib6_nh_init+0x3d8/0x1580
[  150.207791][   T73]      ip6_route_info_create+0xf18/0x17d0
[  150.207791][   T73]      ip6_route_add+0x1c/0x140
[  150.207791][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  150.207791][   T73]      addrconf_add_dev+0xe2/0x170
[  150.207791][   T73]      inet6_addr_add+0x12f/0xa40
[  150.207791][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  150.207791][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  150.207791][   T73]      netlink_rcv_skb+0x130/0x360
[  150.207791][   T73]      netlink_unicast+0x449/0x710
[  150.207791][   T73]      netlink_sendmsg+0x723/0xbe0
[  150.207791][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  150.207791][   T73]      ___sys_sendmsg+0xee/0x170
[  150.207791][   T73]      __sys_sendmsg+0xcd/0x170
[  150.207791][   T73]      do_syscall_64+0xc6/0x1e0
[  150.207791][   T73] 
[  150.211087][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  150.211087][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  150.211087][   T73]      ipv6_find_idev+0x102/0x170
[  150.211087][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  150.211087][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  150.211087][   T73]      netlink_rcv_skb+0x130/0x360
[  150.211087][   T73]      netlink_unicast+0x449/0x710
[  150.211087][   T73]      netlink_sendmsg+0x723/0xbe0
[  150.211087][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  150.211087][   T73]      ___sys_sendmsg+0xee/0x170
[  150.211087][   T73]      __sys_sendmsg+0xcd/0x170
[  150.211087][   T73]      do_syscall_64+0xc6/0x1e0
[  150.211087][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  150.211087][   T73] 
[  150.213833][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  150.213833][   T73]      neigh_parms_alloc+0x1e5/0x510
[  150.213833][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  150.213833][   T73]      ipv6_find_idev+0x102/0x170
[  150.213833][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  150.213833][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  150.213833][   T73]      netlink_rcv_skb+0x130/0x360
[  150.213833][   T73]      netlink_unicast+0x449/0x710
[  150.213833][   T73]      netlink_sendmsg+0x723/0xbe0
[  150.213833][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  150.213833][   T73]      ___sys_sendmsg+0xee/0x170
[  150.213833][   T73]      __sys_sendmsg+0xcd/0x170
[  150.213833][   T73]      do_syscall_64+0xc6/0x1e0
[  150.213833][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  150.213833][   T73] 
[  160.455779][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  160.456426][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  160.456426][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  160.456426][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  160.456426][   T73]      fib6_nh_init+0xa22/0x1580
[  160.456426][   T73]      ip6_route_info_create+0xf18/0x17d0
[  160.456426][   T73]      ip6_route_add+0x1c/0x140
[  160.456426][   T73]      inet6_rtm_newroute+0x104/0x110
[  160.456426][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  160.456426][   T73]      netlink_rcv_skb+0x130/0x360
[  160.456426][   T73]      netlink_unicast+0x449/0x710
[  160.456426][   T73]      netlink_sendmsg+0x723/0xbe0
[  160.456426][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  160.456426][   T73]      ___sys_sendmsg+0xee/0x170
[  160.456426][   T73]      __sys_sendmsg+0xcd/0x170
[  160.456426][   T73]      do_syscall_64+0xc6/0x1e0
[  160.456426][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  160.456426][   T73] 
[  160.459500][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  160.459500][   T73]      dst_init+0x84/0x4a0
[  160.459500][   T73]      dst_alloc+0x97/0x150
[  160.459500][   T73]      ip6_dst_alloc+0x23/0x90
[  160.459500][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  160.459500][   T73]      ip6_pol_route+0x56f/0x840
[  160.459500][   T73]      fib6_rule_lookup+0x456/0x630
[  160.459500][   T73]      ip6_route_input+0x59c/0xa50
[  160.459500][   T73]      ipv6_rcv+0x397/0x810
[  160.459500][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  160.459500][   T73]      process_backlog+0x101/0x620
[  160.459500][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  160.459500][   T73]      net_rx_action+0x495/0xbe0
[  160.459500][   T73]      __do_softirq+0x1b5/0x7f6
[  160.459500][   T73] 
[  160.462087][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  160.462087][   T73]      netdev_get_by_index+0x5e/0x80
[  160.462087][   T73]      fib6_nh_init+0x3d8/0x1580
[  160.462087][   T73]      ip6_route_info_create+0xf18/0x17d0
[  160.462087][   T73]      ip6_route_add+0x1c/0x140
[  160.462087][   T73]      addrconf_prefix_route+0x2a6/0x430
[  160.462087][   T73]      inet6_addr_add+0x4f8/0xa40
[  160.462087][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  160.462087][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  160.462087][   T73]      netlink_rcv_skb+0x130/0x360
[  160.462087][   T73]      netlink_unicast+0x449/0x710
[  160.462087][   T73]      netlink_sendmsg+0x723/0xbe0
[  160.462087][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  160.462087][   T73]      ___sys_sendmsg+0xee/0x170
[  160.462087][   T73]      __sys_sendmsg+0xcd/0x170
[  160.462087][   T73]      do_syscall_64+0xc6/0x1e0
[  160.462087][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  160.462087][   T73] 
[  160.465433][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  160.465433][   T73]      netdev_get_by_index+0x5e/0x80
[  160.465433][   T73]      fib6_nh_init+0x3d8/0x1580
[  160.465433][   T73]      ip6_route_info_create+0xf18/0x17d0
[  160.465433][   T73]      addrconf_f6i_alloc+0x315/0x560
[  160.465433][   T73]      ipv6_add_addr+0x411/0x2000
[  160.465433][   T73]      inet6_addr_add+0x30e/0xa40
[  160.465433][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  160.465433][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  160.465433][   T73]      netlink_rcv_skb+0x130/0x360
[  160.465433][   T73]      netlink_unicast+0x449/0x710
[  160.465433][   T73]      netlink_sendmsg+0x723/0xbe0
[  160.465433][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  160.465433][   T73]      ___sys_sendmsg+0xee/0x170
[  160.465433][   T73]      __sys_sendmsg+0xcd/0x170
[  160.465433][   T73]      do_syscall_64+0xc6/0x1e0
[  160.465433][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  160.465433][   T73] 
[  160.468667][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  160.468667][   T73]      netdev_get_by_index+0x5e/0x80
[  160.468667][   T73]      fib6_nh_init+0x3d8/0x1580
[  160.468667][   T73]      ip6_route_info_create+0xf18/0x17d0
[  160.468667][   T73]      ip6_route_add+0x1c/0x140
[  160.468667][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  160.468667][   T73]      addrconf_add_dev+0xe2/0x170
[  160.468667][   T73]      inet6_addr_add+0x12f/0xa40
[  160.468667][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  160.468667][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  160.468667][   T73]      netlink_rcv_skb+0x130/0x360
[  160.468667][   T73]      netlink_unicast+0x449/0x710
[  160.468667][   T73]      netlink_sendmsg+0x723/0xbe0
[  160.468667][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  160.468667][   T73]      ___sys_sendmsg+0xee/0x170
[  160.468667][   T73]      __sys_sendmsg+0xcd/0x170
[  160.468667][   T73]      do_syscall_64+0xc6/0x1e0
[  160.468667][   T73] 
[  160.472060][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  160.472060][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  160.472060][   T73]      ipv6_find_idev+0x102/0x170
[  160.472060][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  160.472060][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  160.472060][   T73]      netlink_rcv_skb+0x130/0x360
[  160.472060][   T73]      netlink_unicast+0x449/0x710
[  160.472060][   T73]      netlink_sendmsg+0x723/0xbe0
[  160.472060][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  160.472060][   T73]      ___sys_sendmsg+0xee/0x170
[  160.472060][   T73]      __sys_sendmsg+0xcd/0x170
[  160.472060][   T73]      do_syscall_64+0xc6/0x1e0
[  160.472060][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  160.472060][   T73] 
[  160.474689][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  160.474689][   T73]      neigh_parms_alloc+0x1e5/0x510
[  160.474689][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  160.474689][   T73]      ipv6_find_idev+0x102/0x170
[  160.474689][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  160.474689][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  160.474689][   T73]      netlink_rcv_skb+0x130/0x360
[  160.474689][   T73]      netlink_unicast+0x449/0x710
[  160.474689][   T73]      netlink_sendmsg+0x723/0xbe0
[  160.474689][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  160.474689][   T73]      ___sys_sendmsg+0xee/0x170
[  160.474689][   T73]      __sys_sendmsg+0xcd/0x170
[  160.474689][   T73]      do_syscall_64+0xc6/0x1e0
[  160.474689][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  160.474689][   T73] 
[  160.477400][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  160.477889][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  160.477889][   T73]      netdev_get_by_index+0x5e/0x80
[  160.477889][   T73]      fib6_nh_init+0x3d8/0x1580
[  160.477889][   T73]      ip6_route_info_create+0xf18/0x17d0
[  160.477889][   T73]      addrconf_f6i_alloc+0x265/0x560
[  160.477889][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  160.477889][   T73]      addrconf_join_anycast+0x1c0/0x220
[  160.477889][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  160.477889][   T73]      addrconf_dad_completed+0x12b/0xe20
[  160.477889][   T73]      addrconf_dad_begin+0x310/0x670
[  160.477889][   T73]      addrconf_dad_work+0x10b/0xab0
[  160.477889][   T73]      process_one_work+0x84d/0x18a0
[  160.477889][   T73]      worker_thread+0x587/0xd30
[  160.477889][   T73]      kthread+0x28a/0x350
[  160.477889][   T73]      ret_from_fork+0x31/0x70
[  160.477889][   T73]      ret_from_fork_asm+0x1a/0x30
[  160.477889][   T73] 
[  160.480988][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  160.480988][   T73]      netdev_get_by_index+0x5e/0x80
[  160.480988][   T73]      fib6_nh_init+0x3d8/0x1580
[  160.480988][   T73]      ip6_route_info_create+0xf18/0x17d0
[  160.480988][   T73]      ip6_route_add+0x1c/0x140
[  160.480988][   T73]      addrconf_prefix_route+0x2a6/0x430
[  160.480988][   T73]      inet6_addr_add+0x4f8/0xa40
[  160.480988][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  160.480988][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  160.480988][   T73]      netlink_rcv_skb+0x130/0x360
[  160.480988][   T73]      netlink_unicast+0x449/0x710
[  160.480988][   T73]      netlink_sendmsg+0x723/0xbe0
[  160.480988][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  160.480988][   T73]      ___sys_sendmsg+0xee/0x170
[  160.480988][   T73]      __sys_sendmsg+0xcd/0x170
[  160.480988][   T73]      do_syscall_64+0xc6/0x1e0
[  160.480988][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  160.480988][   T73] 
[  160.484210][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  160.484210][   T73]      netdev_get_by_index+0x5e/0x80
[  160.484210][   T73]      fib6_nh_init+0x3d8/0x1580
[  160.484210][   T73]      ip6_route_info_create+0xf18/0x17d0
[  160.484210][   T73]      addrconf_f6i_alloc+0x315/0x560
[  160.484210][   T73]      ipv6_add_addr+0x411/0x2000
[  160.484210][   T73]      inet6_addr_add+0x30e/0xa40
[  160.484210][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  160.484210][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  160.484210][   T73]      netlink_rcv_skb+0x130/0x360
[  160.484210][   T73]      netlink_unicast+0x449/0x710
[  160.484210][   T73]      netlink_sendmsg+0x723/0xbe0
[  160.484210][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  160.484210][   T73]      ___sys_sendmsg+0xee/0x170
[  160.484210][   T73]      __sys_sendmsg+0xcd/0x170
[  160.484210][   T73]      do_syscall_64+0xc6/0x1e0
[  160.484210][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  160.484210][   T73] 
[  160.487311][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  160.487311][   T73]      netdev_get_by_index+0x5e/0x80
[  160.487311][   T73]      fib6_nh_init+0x3d8/0x1580
[  160.487311][   T73]      ip6_route_info_create+0xf18/0x17d0
[  160.487311][   T73]      ip6_route_add+0x1c/0x140
[  160.487311][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  160.487311][   T73]      addrconf_add_dev+0xe2/0x170
[  160.487311][   T73]      inet6_addr_add+0x12f/0xa40
[  160.487311][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  160.487311][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  160.487311][   T73]      netlink_rcv_skb+0x130/0x360
[  160.487311][   T73]      netlink_unicast+0x449/0x710
[  160.487311][   T73]      netlink_sendmsg+0x723/0xbe0
[  160.487311][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  160.487311][   T73]      ___sys_sendmsg+0xee/0x170
[  160.487311][   T73]      __sys_sendmsg+0xcd/0x170
[  160.487311][   T73]      do_syscall_64+0xc6/0x1e0
[  160.487311][   T73] 
[  160.490530][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  160.490530][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  160.490530][   T73]      ipv6_find_idev+0x102/0x170
[  160.490530][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  160.490530][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  160.490530][   T73]      netlink_rcv_skb+0x130/0x360
[  160.490530][   T73]      netlink_unicast+0x449/0x710
[  160.490530][   T73]      netlink_sendmsg+0x723/0xbe0
[  160.490530][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  160.490530][   T73]      ___sys_sendmsg+0xee/0x170
[  160.490530][   T73]      __sys_sendmsg+0xcd/0x170
[  160.490530][   T73]      do_syscall_64+0xc6/0x1e0
[  160.490530][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  160.490530][   T73] 
[  160.493080][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  160.493080][   T73]      neigh_parms_alloc+0x1e5/0x510
[  160.493080][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  160.493080][   T73]      ipv6_find_idev+0x102/0x170
[  160.493080][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  160.493080][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  160.493080][   T73]      netlink_rcv_skb+0x130/0x360
[  160.493080][   T73]      netlink_unicast+0x449/0x710
[  160.493080][   T73]      netlink_sendmsg+0x723/0xbe0
[  160.493080][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  160.493080][   T73]      ___sys_sendmsg+0xee/0x170
[  160.493080][   T73]      __sys_sendmsg+0xcd/0x170
[  160.493080][   T73]      do_syscall_64+0xc6/0x1e0
[  160.493080][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  160.493080][   T73] 
[  160.495900][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  160.496413][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  160.496413][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  160.496413][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  160.496413][   T73]      fib6_nh_init+0xa22/0x1580
[  160.496413][   T73]      ip6_route_info_create+0xf18/0x17d0
[  160.496413][   T73]      ip6_route_add+0x1c/0x140
[  160.496413][   T73]      inet6_rtm_newroute+0x104/0x110
[  160.496413][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  160.496413][   T73]      netlink_rcv_skb+0x130/0x360
[  160.496413][   T73]      netlink_unicast+0x449/0x710
[  160.496413][   T73]      netlink_sendmsg+0x723/0xbe0
[  160.496413][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  160.496413][   T73]      ___sys_sendmsg+0xee/0x170
[  160.496413][   T73]      __sys_sendmsg+0xcd/0x170
[  160.496413][   T73]      do_syscall_64+0xc6/0x1e0
[  160.496413][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  160.496413][   T73] 
[  160.499647][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  160.499647][   T73]      dst_init+0x84/0x4a0
[  160.499647][   T73]      dst_alloc+0x97/0x150
[  160.499647][   T73]      ip6_dst_alloc+0x23/0x90
[  160.499647][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  160.499647][   T73]      ip6_pol_route+0x56f/0x840
[  160.499647][   T73]      fib6_rule_lookup+0x456/0x630
[  160.499647][   T73]      ip6_route_input+0x59c/0xa50
[  160.499647][   T73]      ipv6_rcv+0x397/0x810
[  160.499647][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  160.499647][   T73]      process_backlog+0x101/0x620
[  160.499647][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  160.499647][   T73]      net_rx_action+0x495/0xbe0
[  160.499647][   T73]      __do_softirq+0x1b5/0x7f6
[  160.499647][   T73] 
[  160.502694][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  160.502694][   T73]      netdev_get_by_index+0x5e/0x80
[  160.502694][   T73]      fib6_nh_init+0x3d8/0x1580
[  160.502694][   T73]      ip6_route_info_create+0xf18/0x17d0
[  160.502694][   T73]      ip6_route_add+0x1c/0x140
[  160.502694][   T73]      addrconf_prefix_route+0x2a6/0x430
[  160.502694][   T73]      inet6_addr_add+0x4f8/0xa40
[  160.502694][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  160.502694][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  160.502694][   T73]      netlink_rcv_skb+0x130/0x360
[  160.502694][   T73]      netlink_unicast+0x449/0x710
[  160.502694][   T73]      netlink_sendmsg+0x723/0xbe0
[  160.502694][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  160.502694][   T73]      ___sys_sendmsg+0xee/0x170
[  160.502694][   T73]      __sys_sendmsg+0xcd/0x170
[  160.502694][   T73]      do_syscall_64+0xc6/0x1e0
[  160.502694][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  160.502694][   T73] 
[  160.506268][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  160.506268][   T73]      netdev_get_by_index+0x5e/0x80
[  160.506268][   T73]      fib6_nh_init+0x3d8/0x1580
[  160.506268][   T73]      ip6_route_info_create+0xf18/0x17d0
[  160.506268][   T73]      addrconf_f6i_alloc+0x315/0x560
[  160.506268][   T73]      ipv6_add_addr+0x411/0x2000
[  160.506268][   T73]      inet6_addr_add+0x30e/0xa40
[  160.506268][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  160.506268][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  160.506268][   T73]      netlink_rcv_skb+0x130/0x360
[  160.506268][   T73]      netlink_unicast+0x449/0x710
[  160.506268][   T73]      netlink_sendmsg+0x723/0xbe0
[  160.506268][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  160.506268][   T73]      ___sys_sendmsg+0xee/0x170
[  160.506268][   T73]      __sys_sendmsg+0xcd/0x170
[  160.506268][   T73]      do_syscall_64+0xc6/0x1e0
[  160.506268][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  160.506268][   T73] 
[  160.509860][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  160.509860][   T73]      netdev_get_by_index+0x5e/0x80
[  160.509860][   T73]      fib6_nh_init+0x3d8/0x1580
[  160.509860][   T73]      ip6_route_info_create+0xf18/0x17d0
[  160.509860][   T73]      ip6_route_add+0x1c/0x140
[  160.509860][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  160.509860][   T73]      addrconf_add_dev+0xe2/0x170
[  160.509860][   T73]      inet6_addr_add+0x12f/0xa40
[  160.509860][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  160.509860][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  160.509860][   T73]      netlink_rcv_skb+0x130/0x360
[  160.509860][   T73]      netlink_unicast+0x449/0x710
[  160.509860][   T73]      netlink_sendmsg+0x723/0xbe0
[  160.509860][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  160.509860][   T73]      ___sys_sendmsg+0xee/0x170
[  160.509860][   T73]      __sys_sendmsg+0xcd/0x170
[  160.509860][   T73]      do_syscall_64+0xc6/0x1e0
[  160.509860][   T73] 
[  160.513436][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  160.513436][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  160.513436][   T73]      ipv6_find_idev+0x102/0x170
[  160.513436][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  160.513436][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  160.513436][   T73]      netlink_rcv_skb+0x130/0x360
[  160.513436][   T73]      netlink_unicast+0x449/0x710
[  160.513436][   T73]      netlink_sendmsg+0x723/0xbe0
[  160.513436][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  160.513436][   T73]      ___sys_sendmsg+0xee/0x170
[  160.513436][   T73]      __sys_sendmsg+0xcd/0x170
[  160.513436][   T73]      do_syscall_64+0xc6/0x1e0
[  160.513436][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  160.513436][   T73] 
[  160.516446][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  160.516446][   T73]      neigh_parms_alloc+0x1e5/0x510
[  160.516446][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  160.516446][   T73]      ipv6_find_idev+0x102/0x170
[  160.516446][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  160.516446][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  160.516446][   T73]      netlink_rcv_skb+0x130/0x360
[  160.516446][   T73]      netlink_unicast+0x449/0x710
[  160.516446][   T73]      netlink_sendmsg+0x723/0xbe0
[  160.516446][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  160.516446][   T73]      ___sys_sendmsg+0xee/0x170
[  160.516446][   T73]      __sys_sendmsg+0xcd/0x170
[  160.516446][   T73]      do_syscall_64+0xc6/0x1e0
[  160.516446][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  160.516446][   T73] 
[  160.519478][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  160.520875][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  160.520875][   T73]      netdev_get_by_index+0x5e/0x80
[  160.520875][   T73]      fib6_nh_init+0x3d8/0x1580
[  160.520875][   T73]      ip6_route_info_create+0xf18/0x17d0
[  160.520875][   T73]      addrconf_f6i_alloc+0x265/0x560
[  160.520875][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  160.520875][   T73]      addrconf_join_anycast+0x1c0/0x220
[  160.520875][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  160.520875][   T73]      addrconf_dad_completed+0x12b/0xe20
[  160.520875][   T73]      addrconf_dad_begin+0x310/0x670
[  160.520875][   T73]      addrconf_dad_work+0x10b/0xab0
[  160.520875][   T73]      process_one_work+0x84d/0x18a0
[  160.520875][   T73]      worker_thread+0x587/0xd30
[  160.520875][   T73]      kthread+0x28a/0x350
[  160.520875][   T73]      ret_from_fork+0x31/0x70
[  160.520875][   T73]      ret_from_fork_asm+0x1a/0x30
[  160.520875][   T73] 
[  160.523895][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  160.523895][   T73]      netdev_get_by_index+0x5e/0x80
[  160.523895][   T73]      fib6_nh_init+0x3d8/0x1580
[  160.523895][   T73]      ip6_route_info_create+0xf18/0x17d0
[  160.523895][   T73]      ip6_route_add+0x1c/0x140
[  160.523895][   T73]      addrconf_prefix_route+0x2a6/0x430
[  160.523895][   T73]      inet6_addr_add+0x4f8/0xa40
[  160.523895][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  160.523895][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  160.523895][   T73]      netlink_rcv_skb+0x130/0x360
[  160.523895][   T73]      netlink_unicast+0x449/0x710
[  160.523895][   T73]      netlink_sendmsg+0x723/0xbe0
[  160.523895][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  160.523895][   T73]      ___sys_sendmsg+0xee/0x170
[  160.523895][   T73]      __sys_sendmsg+0xcd/0x170
[  160.523895][   T73]      do_syscall_64+0xc6/0x1e0
[  160.523895][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  160.523895][   T73] 
[  160.527217][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  160.527217][   T73]      netdev_get_by_index+0x5e/0x80
[  160.527217][   T73]      fib6_nh_init+0x3d8/0x1580
[  160.527217][   T73]      ip6_route_info_create+0xf18/0x17d0
[  160.527217][   T73]      addrconf_f6i_alloc+0x315/0x560
[  160.527217][   T73]      ipv6_add_addr+0x411/0x2000
[  160.527217][   T73]      inet6_addr_add+0x30e/0xa40
[  160.527217][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  160.527217][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  160.527217][   T73]      netlink_rcv_skb+0x130/0x360
[  160.527217][   T73]      netlink_unicast+0x449/0x710
[  160.527217][   T73]      netlink_sendmsg+0x723/0xbe0
[  160.527217][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  160.527217][   T73]      ___sys_sendmsg+0xee/0x170
[  160.527217][   T73]      __sys_sendmsg+0xcd/0x170
[  160.527217][   T73]      do_syscall_64+0xc6/0x1e0
[  160.527217][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  160.527217][   T73] 
[  160.530920][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  160.530920][   T73]      netdev_get_by_index+0x5e/0x80
[  160.530920][   T73]      fib6_nh_init+0x3d8/0x1580
[  160.530920][   T73]      ip6_route_info_create+0xf18/0x17d0
[  160.530920][   T73]      ip6_route_add+0x1c/0x140
[  160.530920][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  160.530920][   T73]      addrconf_add_dev+0xe2/0x170
[  160.530920][   T73]      inet6_addr_add+0x12f/0xa40
[  160.530920][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  160.530920][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  160.530920][   T73]      netlink_rcv_skb+0x130/0x360
[  160.530920][   T73]      netlink_unicast+0x449/0x710
[  160.530920][   T73]      netlink_sendmsg+0x723/0xbe0
[  160.530920][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  160.530920][   T73]      ___sys_sendmsg+0xee/0x170
[  160.530920][   T73]      __sys_sendmsg+0xcd/0x170
[  160.530920][   T73]      do_syscall_64+0xc6/0x1e0
[  160.530920][   T73] 
[  160.534483][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  160.534483][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  160.534483][   T73]      ipv6_find_idev+0x102/0x170
[  160.534483][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  160.534483][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  160.534483][   T73]      netlink_rcv_skb+0x130/0x360
[  160.534483][   T73]      netlink_unicast+0x449/0x710
[  160.534483][   T73]      netlink_sendmsg+0x723/0xbe0
[  160.534483][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  160.534483][   T73]      ___sys_sendmsg+0xee/0x170
[  160.534483][   T73]      __sys_sendmsg+0xcd/0x170
[  160.534483][   T73]      do_syscall_64+0xc6/0x1e0
[  160.534483][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  160.534483][   T73] 
[  160.537480][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  160.537480][   T73]      neigh_parms_alloc+0x1e5/0x510
[  160.537480][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  160.537480][   T73]      ipv6_find_idev+0x102/0x170
[  160.537480][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  160.537480][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  160.537480][   T73]      netlink_rcv_skb+0x130/0x360
[  160.537480][   T73]      netlink_unicast+0x449/0x710
[  160.537480][   T73]      netlink_sendmsg+0x723/0xbe0
[  160.537480][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  160.537480][   T73]      ___sys_sendmsg+0xee/0x170
[  160.537480][   T73]      __sys_sendmsg+0xcd/0x170
[  160.537480][   T73]      do_syscall_64+0xc6/0x1e0
[  160.537480][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  160.537480][   T73] 
[  170.615825][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  170.616420][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  170.616420][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  170.616420][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  170.616420][   T73]      fib6_nh_init+0xa22/0x1580
[  170.616420][   T73]      ip6_route_info_create+0xf18/0x17d0
[  170.616420][   T73]      ip6_route_add+0x1c/0x140
[  170.616420][   T73]      inet6_rtm_newroute+0x104/0x110
[  170.616420][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  170.616420][   T73]      netlink_rcv_skb+0x130/0x360
[  170.616420][   T73]      netlink_unicast+0x449/0x710
[  170.616420][   T73]      netlink_sendmsg+0x723/0xbe0
[  170.616420][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  170.616420][   T73]      ___sys_sendmsg+0xee/0x170
[  170.616420][   T73]      __sys_sendmsg+0xcd/0x170
[  170.616420][   T73]      do_syscall_64+0xc6/0x1e0
[  170.616420][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  170.616420][   T73] 
[  170.619485][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  170.619485][   T73]      dst_init+0x84/0x4a0
[  170.619485][   T73]      dst_alloc+0x97/0x150
[  170.619485][   T73]      ip6_dst_alloc+0x23/0x90
[  170.619485][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  170.619485][   T73]      ip6_pol_route+0x56f/0x840
[  170.619485][   T73]      fib6_rule_lookup+0x456/0x630
[  170.619485][   T73]      ip6_route_input+0x59c/0xa50
[  170.619485][   T73]      ipv6_rcv+0x397/0x810
[  170.619485][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  170.619485][   T73]      process_backlog+0x101/0x620
[  170.619485][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  170.619485][   T73]      net_rx_action+0x495/0xbe0
[  170.619485][   T73]      __do_softirq+0x1b5/0x7f6
[  170.619485][   T73] 
[  170.622171][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  170.622171][   T73]      netdev_get_by_index+0x5e/0x80
[  170.622171][   T73]      fib6_nh_init+0x3d8/0x1580
[  170.622171][   T73]      ip6_route_info_create+0xf18/0x17d0
[  170.622171][   T73]      ip6_route_add+0x1c/0x140
[  170.622171][   T73]      addrconf_prefix_route+0x2a6/0x430
[  170.622171][   T73]      inet6_addr_add+0x4f8/0xa40
[  170.622171][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  170.622171][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  170.622171][   T73]      netlink_rcv_skb+0x130/0x360
[  170.622171][   T73]      netlink_unicast+0x449/0x710
[  170.622171][   T73]      netlink_sendmsg+0x723/0xbe0
[  170.622171][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  170.622171][   T73]      ___sys_sendmsg+0xee/0x170
[  170.622171][   T73]      __sys_sendmsg+0xcd/0x170
[  170.622171][   T73]      do_syscall_64+0xc6/0x1e0
[  170.622171][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  170.622171][   T73] 
[  170.625515][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  170.625515][   T73]      netdev_get_by_index+0x5e/0x80
[  170.625515][   T73]      fib6_nh_init+0x3d8/0x1580
[  170.625515][   T73]      ip6_route_info_create+0xf18/0x17d0
[  170.625515][   T73]      addrconf_f6i_alloc+0x315/0x560
[  170.625515][   T73]      ipv6_add_addr+0x411/0x2000
[  170.625515][   T73]      inet6_addr_add+0x30e/0xa40
[  170.625515][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  170.625515][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  170.625515][   T73]      netlink_rcv_skb+0x130/0x360
[  170.625515][   T73]      netlink_unicast+0x449/0x710
[  170.625515][   T73]      netlink_sendmsg+0x723/0xbe0
[  170.625515][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  170.625515][   T73]      ___sys_sendmsg+0xee/0x170
[  170.625515][   T73]      __sys_sendmsg+0xcd/0x170
[  170.625515][   T73]      do_syscall_64+0xc6/0x1e0
[  170.625515][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  170.625515][   T73] 
[  170.628789][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  170.628789][   T73]      netdev_get_by_index+0x5e/0x80
[  170.628789][   T73]      fib6_nh_init+0x3d8/0x1580
[  170.628789][   T73]      ip6_route_info_create+0xf18/0x17d0
[  170.628789][   T73]      ip6_route_add+0x1c/0x140
[  170.628789][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  170.628789][   T73]      addrconf_add_dev+0xe2/0x170
[  170.628789][   T73]      inet6_addr_add+0x12f/0xa40
[  170.628789][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  170.628789][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  170.628789][   T73]      netlink_rcv_skb+0x130/0x360
[  170.628789][   T73]      netlink_unicast+0x449/0x710
[  170.628789][   T73]      netlink_sendmsg+0x723/0xbe0
[  170.628789][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  170.628789][   T73]      ___sys_sendmsg+0xee/0x170
[  170.628789][   T73]      __sys_sendmsg+0xcd/0x170
[  170.628789][   T73]      do_syscall_64+0xc6/0x1e0
[  170.628789][   T73] 
[  170.632001][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  170.632001][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  170.632001][   T73]      ipv6_find_idev+0x102/0x170
[  170.632001][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  170.632001][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  170.632001][   T73]      netlink_rcv_skb+0x130/0x360
[  170.632001][   T73]      netlink_unicast+0x449/0x710
[  170.632001][   T73]      netlink_sendmsg+0x723/0xbe0
[  170.632001][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  170.632001][   T73]      ___sys_sendmsg+0xee/0x170
[  170.632001][   T73]      __sys_sendmsg+0xcd/0x170
[  170.632001][   T73]      do_syscall_64+0xc6/0x1e0
[  170.632001][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  170.632001][   T73] 
[  170.634638][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  170.634638][   T73]      neigh_parms_alloc+0x1e5/0x510
[  170.634638][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  170.634638][   T73]      ipv6_find_idev+0x102/0x170
[  170.634638][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  170.634638][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  170.634638][   T73]      netlink_rcv_skb+0x130/0x360
[  170.634638][   T73]      netlink_unicast+0x449/0x710
[  170.634638][   T73]      netlink_sendmsg+0x723/0xbe0
[  170.634638][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  170.634638][   T73]      ___sys_sendmsg+0xee/0x170
[  170.634638][   T73]      __sys_sendmsg+0xcd/0x170
[  170.634638][   T73]      do_syscall_64+0xc6/0x1e0
[  170.634638][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  170.634638][   T73] 
[  170.637479][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  170.637950][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  170.637950][   T73]      netdev_get_by_index+0x5e/0x80
[  170.637950][   T73]      fib6_nh_init+0x3d8/0x1580
[  170.637950][   T73]      ip6_route_info_create+0xf18/0x17d0
[  170.637950][   T73]      addrconf_f6i_alloc+0x265/0x560
[  170.637950][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  170.637950][   T73]      addrconf_join_anycast+0x1c0/0x220
[  170.637950][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  170.637950][   T73]      addrconf_dad_completed+0x12b/0xe20
[  170.637950][   T73]      addrconf_dad_begin+0x310/0x670
[  170.637950][   T73]      addrconf_dad_work+0x10b/0xab0
[  170.637950][   T73]      process_one_work+0x84d/0x18a0
[  170.637950][   T73]      worker_thread+0x587/0xd30
[  170.637950][   T73]      kthread+0x28a/0x350
[  170.637950][   T73]      ret_from_fork+0x31/0x70
[  170.637950][   T73]      ret_from_fork_asm+0x1a/0x30
[  170.637950][   T73] 
[  170.641241][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  170.641241][   T73]      netdev_get_by_index+0x5e/0x80
[  170.641241][   T73]      fib6_nh_init+0x3d8/0x1580
[  170.641241][   T73]      ip6_route_info_create+0xf18/0x17d0
[  170.641241][   T73]      ip6_route_add+0x1c/0x140
[  170.641241][   T73]      addrconf_prefix_route+0x2a6/0x430
[  170.641241][   T73]      inet6_addr_add+0x4f8/0xa40
[  170.641241][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  170.641241][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  170.641241][   T73]      netlink_rcv_skb+0x130/0x360
[  170.641241][   T73]      netlink_unicast+0x449/0x710
[  170.641241][   T73]      netlink_sendmsg+0x723/0xbe0
[  170.641241][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  170.641241][   T73]      ___sys_sendmsg+0xee/0x170
[  170.641241][   T73]      __sys_sendmsg+0xcd/0x170
[  170.641241][   T73]      do_syscall_64+0xc6/0x1e0
[  170.641241][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  170.641241][   T73] 
[  170.644704][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  170.644704][   T73]      netdev_get_by_index+0x5e/0x80
[  170.644704][   T73]      fib6_nh_init+0x3d8/0x1580
[  170.644704][   T73]      ip6_route_info_create+0xf18/0x17d0
[  170.644704][   T73]      addrconf_f6i_alloc+0x315/0x560
[  170.644704][   T73]      ipv6_add_addr+0x411/0x2000
[  170.644704][   T73]      inet6_addr_add+0x30e/0xa40
[  170.644704][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  170.644704][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  170.644704][   T73]      netlink_rcv_skb+0x130/0x360
[  170.644704][   T73]      netlink_unicast+0x449/0x710
[  170.644704][   T73]      netlink_sendmsg+0x723/0xbe0
[  170.644704][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  170.644704][   T73]      ___sys_sendmsg+0xee/0x170
[  170.644704][   T73]      __sys_sendmsg+0xcd/0x170
[  170.644704][   T73]      do_syscall_64+0xc6/0x1e0
[  170.644704][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  170.644704][   T73] 
[  170.648208][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  170.648208][   T73]      netdev_get_by_index+0x5e/0x80
[  170.648208][   T73]      fib6_nh_init+0x3d8/0x1580
[  170.648208][   T73]      ip6_route_info_create+0xf18/0x17d0
[  170.648208][   T73]      ip6_route_add+0x1c/0x140
[  170.648208][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  170.648208][   T73]      addrconf_add_dev+0xe2/0x170
[  170.648208][   T73]      inet6_addr_add+0x12f/0xa40
[  170.648208][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  170.648208][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  170.648208][   T73]      netlink_rcv_skb+0x130/0x360
[  170.648208][   T73]      netlink_unicast+0x449/0x710
[  170.648208][   T73]      netlink_sendmsg+0x723/0xbe0
[  170.648208][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  170.648208][   T73]      ___sys_sendmsg+0xee/0x170
[  170.648208][   T73]      __sys_sendmsg+0xcd/0x170
[  170.648208][   T73]      do_syscall_64+0xc6/0x1e0
[  170.648208][   T73] 
[  170.651153][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  170.651153][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  170.651153][   T73]      ipv6_find_idev+0x102/0x170
[  170.651153][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  170.651153][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  170.651153][   T73]      netlink_rcv_skb+0x130/0x360
[  170.651153][   T73]      netlink_unicast+0x449/0x710
[  170.651153][   T73]      netlink_sendmsg+0x723/0xbe0
[  170.651153][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  170.651153][   T73]      ___sys_sendmsg+0xee/0x170
[  170.651153][   T73]      __sys_sendmsg+0xcd/0x170
[  170.651153][   T73]      do_syscall_64+0xc6/0x1e0
[  170.651153][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  170.651153][   T73] 
[  170.652849][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  170.652849][   T73]      neigh_parms_alloc+0x1e5/0x510
[  170.652849][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  170.652849][   T73]      ipv6_find_idev+0x102/0x170
[  170.652849][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  170.652849][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  170.652849][   T73]      netlink_rcv_skb+0x130/0x360
[  170.652849][   T73]      netlink_unicast+0x449/0x710
[  170.652849][   T73]      netlink_sendmsg+0x723/0xbe0
[  170.652849][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  170.652849][   T73]      ___sys_sendmsg+0xee/0x170
[  170.652849][   T73]      __sys_sendmsg+0xcd/0x170
[  170.652849][   T73]      do_syscall_64+0xc6/0x1e0
[  170.652849][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  170.652849][   T73] 
[  170.654853][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  170.655170][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  170.655170][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  170.655170][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  170.655170][   T73]      fib6_nh_init+0xa22/0x1580
[  170.655170][   T73]      ip6_route_info_create+0xf18/0x17d0
[  170.655170][   T73]      ip6_route_add+0x1c/0x140
[  170.655170][   T73]      inet6_rtm_newroute+0x104/0x110
[  170.655170][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  170.655170][   T73]      netlink_rcv_skb+0x130/0x360
[  170.655170][   T73]      netlink_unicast+0x449/0x710
[  170.655170][   T73]      netlink_sendmsg+0x723/0xbe0
[  170.655170][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  170.655170][   T73]      ___sys_sendmsg+0xee/0x170
[  170.655170][   T73]      __sys_sendmsg+0xcd/0x170
[  170.655170][   T73]      do_syscall_64+0xc6/0x1e0
[  170.655170][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  170.655170][   T73] 
[  170.657261][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  170.657261][   T73]      dst_init+0x84/0x4a0
[  170.657261][   T73]      dst_alloc+0x97/0x150
[  170.657261][   T73]      ip6_dst_alloc+0x23/0x90
[  170.657261][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  170.657261][   T73]      ip6_pol_route+0x56f/0x840
[  170.657261][   T73]      fib6_rule_lookup+0x456/0x630
[  170.657261][   T73]      ip6_route_input+0x59c/0xa50
[  170.657261][   T73]      ipv6_rcv+0x397/0x810
[  170.657261][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  170.657261][   T73]      process_backlog+0x101/0x620
[  170.657261][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  170.657261][   T73]      net_rx_action+0x495/0xbe0
[  170.657261][   T73]      __do_softirq+0x1b5/0x7f6
[  170.657261][   T73] 
[  170.659210][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  170.659210][   T73]      netdev_get_by_index+0x5e/0x80
[  170.659210][   T73]      fib6_nh_init+0x3d8/0x1580
[  170.659210][   T73]      ip6_route_info_create+0xf18/0x17d0
[  170.659210][   T73]      ip6_route_add+0x1c/0x140
[  170.659210][   T73]      addrconf_prefix_route+0x2a6/0x430
[  170.659210][   T73]      inet6_addr_add+0x4f8/0xa40
[  170.659210][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  170.659210][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  170.659210][   T73]      netlink_rcv_skb+0x130/0x360
[  170.659210][   T73]      netlink_unicast+0x449/0x710
[  170.659210][   T73]      netlink_sendmsg+0x723/0xbe0
[  170.659210][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  170.659210][   T73]      ___sys_sendmsg+0xee/0x170
[  170.659210][   T73]      __sys_sendmsg+0xcd/0x170
[  170.659210][   T73]      do_syscall_64+0xc6/0x1e0
[  170.659210][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  170.659210][   T73] 
[  170.661677][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  170.661677][   T73]      netdev_get_by_index+0x5e/0x80
[  170.661677][   T73]      fib6_nh_init+0x3d8/0x1580
[  170.661677][   T73]      ip6_route_info_create+0xf18/0x17d0
[  170.661677][   T73]      addrconf_f6i_alloc+0x315/0x560
[  170.661677][   T73]      ipv6_add_addr+0x411/0x2000
[  170.661677][   T73]      inet6_addr_add+0x30e/0xa40
[  170.661677][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  170.661677][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  170.661677][   T73]      netlink_rcv_skb+0x130/0x360
[  170.661677][   T73]      netlink_unicast+0x449/0x710
[  170.661677][   T73]      netlink_sendmsg+0x723/0xbe0
[  170.661677][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  170.661677][   T73]      ___sys_sendmsg+0xee/0x170
[  170.661677][   T73]      __sys_sendmsg+0xcd/0x170
[  170.661677][   T73]      do_syscall_64+0xc6/0x1e0
[  170.661677][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  170.661677][   T73] 
[  170.664156][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  170.664156][   T73]      netdev_get_by_index+0x5e/0x80
[  170.664156][   T73]      fib6_nh_init+0x3d8/0x1580
[  170.664156][   T73]      ip6_route_info_create+0xf18/0x17d0
[  170.664156][   T73]      ip6_route_add+0x1c/0x140
[  170.664156][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  170.664156][   T73]      addrconf_add_dev+0xe2/0x170
[  170.664156][   T73]      inet6_addr_add+0x12f/0xa40
[  170.664156][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  170.664156][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  170.664156][   T73]      netlink_rcv_skb+0x130/0x360
[  170.664156][   T73]      netlink_unicast+0x449/0x710
[  170.664156][   T73]      netlink_sendmsg+0x723/0xbe0
[  170.664156][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  170.664156][   T73]      ___sys_sendmsg+0xee/0x170
[  170.664156][   T73]      __sys_sendmsg+0xcd/0x170
[  170.664156][   T73]      do_syscall_64+0xc6/0x1e0
[  170.664156][   T73] 
[  170.666579][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  170.666579][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  170.666579][   T73]      ipv6_find_idev+0x102/0x170
[  170.666579][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  170.666579][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  170.666579][   T73]      netlink_rcv_skb+0x130/0x360
[  170.666579][   T73]      netlink_unicast+0x449/0x710
[  170.666579][   T73]      netlink_sendmsg+0x723/0xbe0
[  170.666579][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  170.666579][   T73]      ___sys_sendmsg+0xee/0x170
[  170.666579][   T73]      __sys_sendmsg+0xcd/0x170
[  170.666579][   T73]      do_syscall_64+0xc6/0x1e0
[  170.666579][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  170.666579][   T73] 
[  170.668411][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  170.668411][   T73]      neigh_parms_alloc+0x1e5/0x510
[  170.668411][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  170.668411][   T73]      ipv6_find_idev+0x102/0x170
[  170.668411][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  170.668411][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  170.668411][   T73]      netlink_rcv_skb+0x130/0x360
[  170.668411][   T73]      netlink_unicast+0x449/0x710
[  170.668411][   T73]      netlink_sendmsg+0x723/0xbe0
[  170.668411][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  170.668411][   T73]      ___sys_sendmsg+0xee/0x170
[  170.668411][   T73]      __sys_sendmsg+0xcd/0x170
[  170.668411][   T73]      do_syscall_64+0xc6/0x1e0
[  170.668411][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  170.668411][   T73] 
[  170.670470][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  170.671309][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  170.671309][   T73]      netdev_get_by_index+0x5e/0x80
[  170.671309][   T73]      fib6_nh_init+0x3d8/0x1580
[  170.671309][   T73]      ip6_route_info_create+0xf18/0x17d0
[  170.671309][   T73]      addrconf_f6i_alloc+0x265/0x560
[  170.671309][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  170.671309][   T73]      addrconf_join_anycast+0x1c0/0x220
[  170.671309][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  170.671309][   T73]      addrconf_dad_completed+0x12b/0xe20
[  170.671309][   T73]      addrconf_dad_begin+0x310/0x670
[  170.671309][   T73]      addrconf_dad_work+0x10b/0xab0
[  170.671309][   T73]      process_one_work+0x84d/0x18a0
[  170.671309][   T73]      worker_thread+0x587/0xd30
[  170.671309][   T73]      kthread+0x28a/0x350
[  170.671309][   T73]      ret_from_fork+0x31/0x70
[  170.671309][   T73]      ret_from_fork_asm+0x1a/0x30
[  170.671309][   T73] 
[  170.673303][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  170.673303][   T73]      netdev_get_by_index+0x5e/0x80
[  170.673303][   T73]      fib6_nh_init+0x3d8/0x1580
[  170.673303][   T73]      ip6_route_info_create+0xf18/0x17d0
[  170.673303][   T73]      ip6_route_add+0x1c/0x140
[  170.673303][   T73]      addrconf_prefix_route+0x2a6/0x430
[  170.673303][   T73]      inet6_addr_add+0x4f8/0xa40
[  170.673303][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  170.673303][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  170.673303][   T73]      netlink_rcv_skb+0x130/0x360
[  170.673303][   T73]      netlink_unicast+0x449/0x710
[  170.673303][   T73]      netlink_sendmsg+0x723/0xbe0
[  170.673303][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  170.673303][   T73]      ___sys_sendmsg+0xee/0x170
[  170.673303][   T73]      __sys_sendmsg+0xcd/0x170
[  170.673303][   T73]      do_syscall_64+0xc6/0x1e0
[  170.673303][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  170.673303][   T73] 
[  170.675460][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  170.675460][   T73]      netdev_get_by_index+0x5e/0x80
[  170.675460][   T73]      fib6_nh_init+0x3d8/0x1580
[  170.675460][   T73]      ip6_route_info_create+0xf18/0x17d0
[  170.675460][   T73]      addrconf_f6i_alloc+0x315/0x560
[  170.675460][   T73]      ipv6_add_addr+0x411/0x2000
[  170.675460][   T73]      inet6_addr_add+0x30e/0xa40
[  170.675460][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  170.675460][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  170.675460][   T73]      netlink_rcv_skb+0x130/0x360
[  170.675460][   T73]      netlink_unicast+0x449/0x710
[  170.675460][   T73]      netlink_sendmsg+0x723/0xbe0
[  170.675460][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  170.675460][   T73]      ___sys_sendmsg+0xee/0x170
[  170.675460][   T73]      __sys_sendmsg+0xcd/0x170
[  170.675460][   T73]      do_syscall_64+0xc6/0x1e0
[  170.675460][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  170.675460][   T73] 
[  170.677807][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  170.677807][   T73]      netdev_get_by_index+0x5e/0x80
[  170.677807][   T73]      fib6_nh_init+0x3d8/0x1580
[  170.677807][   T73]      ip6_route_info_create+0xf18/0x17d0
[  170.677807][   T73]      ip6_route_add+0x1c/0x140
[  170.677807][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  170.677807][   T73]      addrconf_add_dev+0xe2/0x170
[  170.677807][   T73]      inet6_addr_add+0x12f/0xa40
[  170.677807][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  170.677807][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  170.677807][   T73]      netlink_rcv_skb+0x130/0x360
[  170.677807][   T73]      netlink_unicast+0x449/0x710
[  170.677807][   T73]      netlink_sendmsg+0x723/0xbe0
[  170.677807][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  170.677807][   T73]      ___sys_sendmsg+0xee/0x170
[  170.677807][   T73]      __sys_sendmsg+0xcd/0x170
[  170.677807][   T73]      do_syscall_64+0xc6/0x1e0
[  170.677807][   T73] 
[  170.680168][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  170.680168][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  170.680168][   T73]      ipv6_find_idev+0x102/0x170
[  170.680168][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  170.680168][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  170.680168][   T73]      netlink_rcv_skb+0x130/0x360
[  170.680168][   T73]      netlink_unicast+0x449/0x710
[  170.680168][   T73]      netlink_sendmsg+0x723/0xbe0
[  170.680168][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  170.680168][   T73]      ___sys_sendmsg+0xee/0x170
[  170.680168][   T73]      __sys_sendmsg+0xcd/0x170
[  170.680168][   T73]      do_syscall_64+0xc6/0x1e0
[  170.680168][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  170.680168][   T73] 
[  170.682027][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  170.682027][   T73]      neigh_parms_alloc+0x1e5/0x510
[  170.682027][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  170.682027][   T73]      ipv6_find_idev+0x102/0x170
[  170.682027][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  170.682027][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  170.682027][   T73]      netlink_rcv_skb+0x130/0x360
[  170.682027][   T73]      netlink_unicast+0x449/0x710
[  170.682027][   T73]      netlink_sendmsg+0x723/0xbe0
[  170.682027][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  170.682027][   T73]      ___sys_sendmsg+0xee/0x170
[  170.682027][   T73]      __sys_sendmsg+0xcd/0x170
[  170.682027][   T73]      do_syscall_64+0xc6/0x1e0
[  170.682027][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  170.682027][   T73] 
[  180.871797][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  180.872248][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  180.872248][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  180.872248][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  180.872248][   T73]      fib6_nh_init+0xa22/0x1580
[  180.872248][   T73]      ip6_route_info_create+0xf18/0x17d0
[  180.872248][   T73]      ip6_route_add+0x1c/0x140
[  180.872248][   T73]      inet6_rtm_newroute+0x104/0x110
[  180.872248][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  180.872248][   T73]      netlink_rcv_skb+0x130/0x360
[  180.872248][   T73]      netlink_unicast+0x449/0x710
[  180.872248][   T73]      netlink_sendmsg+0x723/0xbe0
[  180.872248][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  180.872248][   T73]      ___sys_sendmsg+0xee/0x170
[  180.872248][   T73]      __sys_sendmsg+0xcd/0x170
[  180.872248][   T73]      do_syscall_64+0xc6/0x1e0
[  180.872248][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  180.872248][   T73] 
[  180.874238][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  180.874238][   T73]      dst_init+0x84/0x4a0
[  180.874238][   T73]      dst_alloc+0x97/0x150
[  180.874238][   T73]      ip6_dst_alloc+0x23/0x90
[  180.874238][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  180.874238][   T73]      ip6_pol_route+0x56f/0x840
[  180.874238][   T73]      fib6_rule_lookup+0x456/0x630
[  180.874238][   T73]      ip6_route_input+0x59c/0xa50
[  180.874238][   T73]      ipv6_rcv+0x397/0x810
[  180.874238][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  180.874238][   T73]      process_backlog+0x101/0x620
[  180.874238][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  180.874238][   T73]      net_rx_action+0x495/0xbe0
[  180.874238][   T73]      __do_softirq+0x1b5/0x7f6
[  180.874238][   T73] 
[  180.875910][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  180.875910][   T73]      netdev_get_by_index+0x5e/0x80
[  180.875910][   T73]      fib6_nh_init+0x3d8/0x1580
[  180.875910][   T73]      ip6_route_info_create+0xf18/0x17d0
[  180.875910][   T73]      ip6_route_add+0x1c/0x140
[  180.875910][   T73]      addrconf_prefix_route+0x2a6/0x430
[  180.875910][   T73]      inet6_addr_add+0x4f8/0xa40
[  180.875910][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  180.875910][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  180.875910][   T73]      netlink_rcv_skb+0x130/0x360
[  180.875910][   T73]      netlink_unicast+0x449/0x710
[  180.875910][   T73]      netlink_sendmsg+0x723/0xbe0
[  180.875910][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  180.875910][   T73]      ___sys_sendmsg+0xee/0x170
[  180.875910][   T73]      __sys_sendmsg+0xcd/0x170
[  180.875910][   T73]      do_syscall_64+0xc6/0x1e0
[  180.875910][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  180.875910][   T73] 
[  180.877950][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  180.877950][   T73]      netdev_get_by_index+0x5e/0x80
[  180.877950][   T73]      fib6_nh_init+0x3d8/0x1580
[  180.877950][   T73]      ip6_route_info_create+0xf18/0x17d0
[  180.877950][   T73]      addrconf_f6i_alloc+0x315/0x560
[  180.877950][   T73]      ipv6_add_addr+0x411/0x2000
[  180.877950][   T73]      inet6_addr_add+0x30e/0xa40
[  180.877950][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  180.877950][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  180.877950][   T73]      netlink_rcv_skb+0x130/0x360
[  180.877950][   T73]      netlink_unicast+0x449/0x710
[  180.877950][   T73]      netlink_sendmsg+0x723/0xbe0
[  180.877950][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  180.877950][   T73]      ___sys_sendmsg+0xee/0x170
[  180.877950][   T73]      __sys_sendmsg+0xcd/0x170
[  180.877950][   T73]      do_syscall_64+0xc6/0x1e0
[  180.877950][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  180.877950][   T73] 
[  180.880026][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  180.880026][   T73]      netdev_get_by_index+0x5e/0x80
[  180.880026][   T73]      fib6_nh_init+0x3d8/0x1580
[  180.880026][   T73]      ip6_route_info_create+0xf18/0x17d0
[  180.880026][   T73]      ip6_route_add+0x1c/0x140
[  180.880026][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  180.880026][   T73]      addrconf_add_dev+0xe2/0x170
[  180.880026][   T73]      inet6_addr_add+0x12f/0xa40
[  180.880026][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  180.880026][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  180.880026][   T73]      netlink_rcv_skb+0x130/0x360
[  180.880026][   T73]      netlink_unicast+0x449/0x710
[  180.880026][   T73]      netlink_sendmsg+0x723/0xbe0
[  180.880026][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  180.880026][   T73]      ___sys_sendmsg+0xee/0x170
[  180.880026][   T73]      __sys_sendmsg+0xcd/0x170
[  180.880026][   T73]      do_syscall_64+0xc6/0x1e0
[  180.880026][   T73] 
[  180.882088][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  180.882088][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  180.882088][   T73]      ipv6_find_idev+0x102/0x170
[  180.882088][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  180.882088][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  180.882088][   T73]      netlink_rcv_skb+0x130/0x360
[  180.882088][   T73]      netlink_unicast+0x449/0x710
[  180.882088][   T73]      netlink_sendmsg+0x723/0xbe0
[  180.882088][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  180.882088][   T73]      ___sys_sendmsg+0xee/0x170
[  180.882088][   T73]      __sys_sendmsg+0xcd/0x170
[  180.882088][   T73]      do_syscall_64+0xc6/0x1e0
[  180.882088][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  180.882088][   T73] 
[  180.883711][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  180.883711][   T73]      neigh_parms_alloc+0x1e5/0x510
[  180.883711][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  180.883711][   T73]      ipv6_find_idev+0x102/0x170
[  180.883711][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  180.883711][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  180.883711][   T73]      netlink_rcv_skb+0x130/0x360
[  180.883711][   T73]      netlink_unicast+0x449/0x710
[  180.883711][   T73]      netlink_sendmsg+0x723/0xbe0
[  180.883711][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  180.883711][   T73]      ___sys_sendmsg+0xee/0x170
[  180.883711][   T73]      __sys_sendmsg+0xcd/0x170
[  180.883711][   T73]      do_syscall_64+0xc6/0x1e0
[  180.883711][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  180.883711][   T73] 
[  180.885664][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  180.885965][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  180.885965][   T73]      netdev_get_by_index+0x5e/0x80
[  180.885965][   T73]      fib6_nh_init+0x3d8/0x1580
[  180.885965][   T73]      ip6_route_info_create+0xf18/0x17d0
[  180.885965][   T73]      addrconf_f6i_alloc+0x265/0x560
[  180.885965][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  180.885965][   T73]      addrconf_join_anycast+0x1c0/0x220
[  180.885965][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  180.885965][   T73]      addrconf_dad_completed+0x12b/0xe20
[  180.885965][   T73]      addrconf_dad_begin+0x310/0x670
[  180.885965][   T73]      addrconf_dad_work+0x10b/0xab0
[  180.885965][   T73]      process_one_work+0x84d/0x18a0
[  180.885965][   T73]      worker_thread+0x587/0xd30
[  180.885965][   T73]      kthread+0x28a/0x350
[  180.885965][   T73]      ret_from_fork+0x31/0x70
[  180.885965][   T73]      ret_from_fork_asm+0x1a/0x30
[  180.885965][   T73] 
[  180.887942][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  180.887942][   T73]      netdev_get_by_index+0x5e/0x80
[  180.887942][   T73]      fib6_nh_init+0x3d8/0x1580
[  180.887942][   T73]      ip6_route_info_create+0xf18/0x17d0
[  180.887942][   T73]      ip6_route_add+0x1c/0x140
[  180.887942][   T73]      addrconf_prefix_route+0x2a6/0x430
[  180.887942][   T73]      inet6_addr_add+0x4f8/0xa40
[  180.887942][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  180.887942][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  180.887942][   T73]      netlink_rcv_skb+0x130/0x360
[  180.887942][   T73]      netlink_unicast+0x449/0x710
[  180.887942][   T73]      netlink_sendmsg+0x723/0xbe0
[  180.887942][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  180.887942][   T73]      ___sys_sendmsg+0xee/0x170
[  180.887942][   T73]      __sys_sendmsg+0xcd/0x170
[  180.887942][   T73]      do_syscall_64+0xc6/0x1e0
[  180.887942][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  180.887942][   T73] 
[  180.890030][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  180.890030][   T73]      netdev_get_by_index+0x5e/0x80
[  180.890030][   T73]      fib6_nh_init+0x3d8/0x1580
[  180.890030][   T73]      ip6_route_info_create+0xf18/0x17d0
[  180.890030][   T73]      addrconf_f6i_alloc+0x315/0x560
[  180.890030][   T73]      ipv6_add_addr+0x411/0x2000
[  180.890030][   T73]      inet6_addr_add+0x30e/0xa40
[  180.890030][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  180.890030][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  180.890030][   T73]      netlink_rcv_skb+0x130/0x360
[  180.890030][   T73]      netlink_unicast+0x449/0x710
[  180.890030][   T73]      netlink_sendmsg+0x723/0xbe0
[  180.890030][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  180.890030][   T73]      ___sys_sendmsg+0xee/0x170
[  180.890030][   T73]      __sys_sendmsg+0xcd/0x170
[  180.890030][   T73]      do_syscall_64+0xc6/0x1e0
[  180.890030][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  180.890030][   T73] 
[  180.892076][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  180.892076][   T73]      netdev_get_by_index+0x5e/0x80
[  180.892076][   T73]      fib6_nh_init+0x3d8/0x1580
[  180.892076][   T73]      ip6_route_info_create+0xf18/0x17d0
[  180.892076][   T73]      ip6_route_add+0x1c/0x140
[  180.892076][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  180.892076][   T73]      addrconf_add_dev+0xe2/0x170
[  180.892076][   T73]      inet6_addr_add+0x12f/0xa40
[  180.892076][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  180.892076][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  180.892076][   T73]      netlink_rcv_skb+0x130/0x360
[  180.892076][   T73]      netlink_unicast+0x449/0x710
[  180.892076][   T73]      netlink_sendmsg+0x723/0xbe0
[  180.892076][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  180.892076][   T73]      ___sys_sendmsg+0xee/0x170
[  180.892076][   T73]      __sys_sendmsg+0xcd/0x170
[  180.892076][   T73]      do_syscall_64+0xc6/0x1e0
[  180.892076][   T73] 
[  180.894105][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  180.894105][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  180.894105][   T73]      ipv6_find_idev+0x102/0x170
[  180.894105][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  180.894105][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  180.894105][   T73]      netlink_rcv_skb+0x130/0x360
[  180.894105][   T73]      netlink_unicast+0x449/0x710
[  180.894105][   T73]      netlink_sendmsg+0x723/0xbe0
[  180.894105][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  180.894105][   T73]      ___sys_sendmsg+0xee/0x170
[  180.894105][   T73]      __sys_sendmsg+0xcd/0x170
[  180.894105][   T73]      do_syscall_64+0xc6/0x1e0
[  180.894105][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  180.894105][   T73] 
[  180.895690][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  180.895690][   T73]      neigh_parms_alloc+0x1e5/0x510
[  180.895690][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  180.895690][   T73]      ipv6_find_idev+0x102/0x170
[  180.895690][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  180.895690][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  180.895690][   T73]      netlink_rcv_skb+0x130/0x360
[  180.895690][   T73]      netlink_unicast+0x449/0x710
[  180.895690][   T73]      netlink_sendmsg+0x723/0xbe0
[  180.895690][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  180.895690][   T73]      ___sys_sendmsg+0xee/0x170
[  180.895690][   T73]      __sys_sendmsg+0xcd/0x170
[  180.895690][   T73]      do_syscall_64+0xc6/0x1e0
[  180.895690][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  180.895690][   T73] 
[  180.897495][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  180.897788][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  180.897788][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  180.897788][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  180.897788][   T73]      fib6_nh_init+0xa22/0x1580
[  180.897788][   T73]      ip6_route_info_create+0xf18/0x17d0
[  180.897788][   T73]      ip6_route_add+0x1c/0x140
[  180.897788][   T73]      inet6_rtm_newroute+0x104/0x110
[  180.897788][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  180.897788][   T73]      netlink_rcv_skb+0x130/0x360
[  180.897788][   T73]      netlink_unicast+0x449/0x710
[  180.897788][   T73]      netlink_sendmsg+0x723/0xbe0
[  180.897788][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  180.897788][   T73]      ___sys_sendmsg+0xee/0x170
[  180.897788][   T73]      __sys_sendmsg+0xcd/0x170
[  180.897788][   T73]      do_syscall_64+0xc6/0x1e0
[  180.897788][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  180.897788][   T73] 
[  180.899863][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  180.899863][   T73]      dst_init+0x84/0x4a0
[  180.899863][   T73]      dst_alloc+0x97/0x150
[  180.899863][   T73]      ip6_dst_alloc+0x23/0x90
[  180.899863][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  180.899863][   T73]      ip6_pol_route+0x56f/0x840
[  180.899863][   T73]      fib6_rule_lookup+0x456/0x630
[  180.899863][   T73]      ip6_route_input+0x59c/0xa50
[  180.899863][   T73]      ipv6_rcv+0x397/0x810
[  180.899863][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  180.899863][   T73]      process_backlog+0x101/0x620
[  180.899863][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  180.899863][   T73]      net_rx_action+0x495/0xbe0
[  180.899863][   T73]      __do_softirq+0x1b5/0x7f6
[  180.899863][   T73] 
[  180.901770][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  180.901770][   T73]      netdev_get_by_index+0x5e/0x80
[  180.901770][   T73]      fib6_nh_init+0x3d8/0x1580
[  180.901770][   T73]      ip6_route_info_create+0xf18/0x17d0
[  180.901770][   T73]      ip6_route_add+0x1c/0x140
[  180.901770][   T73]      addrconf_prefix_route+0x2a6/0x430
[  180.901770][   T73]      inet6_addr_add+0x4f8/0xa40
[  180.901770][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  180.901770][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  180.901770][   T73]      netlink_rcv_skb+0x130/0x360
[  180.901770][   T73]      netlink_unicast+0x449/0x710
[  180.901770][   T73]      netlink_sendmsg+0x723/0xbe0
[  180.901770][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  180.901770][   T73]      ___sys_sendmsg+0xee/0x170
[  180.901770][   T73]      __sys_sendmsg+0xcd/0x170
[  180.901770][   T73]      do_syscall_64+0xc6/0x1e0
[  180.901770][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  180.901770][   T73] 
[  180.903968][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  180.903968][   T73]      netdev_get_by_index+0x5e/0x80
[  180.903968][   T73]      fib6_nh_init+0x3d8/0x1580
[  180.903968][   T73]      ip6_route_info_create+0xf18/0x17d0
[  180.903968][   T73]      addrconf_f6i_alloc+0x315/0x560
[  180.903968][   T73]      ipv6_add_addr+0x411/0x2000
[  180.903968][   T73]      inet6_addr_add+0x30e/0xa40
[  180.903968][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  180.903968][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  180.903968][   T73]      netlink_rcv_skb+0x130/0x360
[  180.903968][   T73]      netlink_unicast+0x449/0x710
[  180.903968][   T73]      netlink_sendmsg+0x723/0xbe0
[  180.903968][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  180.903968][   T73]      ___sys_sendmsg+0xee/0x170
[  180.903968][   T73]      __sys_sendmsg+0xcd/0x170
[  180.903968][   T73]      do_syscall_64+0xc6/0x1e0
[  180.903968][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  180.903968][   T73] 
[  180.906396][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  180.906396][   T73]      netdev_get_by_index+0x5e/0x80
[  180.906396][   T73]      fib6_nh_init+0x3d8/0x1580
[  180.906396][   T73]      ip6_route_info_create+0xf18/0x17d0
[  180.906396][   T73]      ip6_route_add+0x1c/0x140
[  180.906396][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  180.906396][   T73]      addrconf_add_dev+0xe2/0x170
[  180.906396][   T73]      inet6_addr_add+0x12f/0xa40
[  180.906396][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  180.906396][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  180.906396][   T73]      netlink_rcv_skb+0x130/0x360
[  180.906396][   T73]      netlink_unicast+0x449/0x710
[  180.906396][   T73]      netlink_sendmsg+0x723/0xbe0
[  180.906396][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  180.906396][   T73]      ___sys_sendmsg+0xee/0x170
[  180.906396][   T73]      __sys_sendmsg+0xcd/0x170
[  180.906396][   T73]      do_syscall_64+0xc6/0x1e0
[  180.906396][   T73] 
[  180.908538][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  180.908538][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  180.908538][   T73]      ipv6_find_idev+0x102/0x170
[  180.908538][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  180.908538][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  180.908538][   T73]      netlink_rcv_skb+0x130/0x360
[  180.908538][   T73]      netlink_unicast+0x449/0x710
[  180.908538][   T73]      netlink_sendmsg+0x723/0xbe0
[  180.908538][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  180.908538][   T73]      ___sys_sendmsg+0xee/0x170
[  180.908538][   T73]      __sys_sendmsg+0xcd/0x170
[  180.908538][   T73]      do_syscall_64+0xc6/0x1e0
[  180.908538][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  180.908538][   T73] 
[  180.910323][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  180.910323][   T73]      neigh_parms_alloc+0x1e5/0x510
[  180.910323][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  180.910323][   T73]      ipv6_find_idev+0x102/0x170
[  180.910323][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  180.910323][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  180.910323][   T73]      netlink_rcv_skb+0x130/0x360
[  180.910323][   T73]      netlink_unicast+0x449/0x710
[  180.910323][   T73]      netlink_sendmsg+0x723/0xbe0
[  180.910323][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  180.910323][   T73]      ___sys_sendmsg+0xee/0x170
[  180.910323][   T73]      __sys_sendmsg+0xcd/0x170
[  180.910323][   T73]      do_syscall_64+0xc6/0x1e0
[  180.910323][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  180.910323][   T73] 
[  180.912286][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  180.912631][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  180.912631][   T73]      netdev_get_by_index+0x5e/0x80
[  180.912631][   T73]      fib6_nh_init+0x3d8/0x1580
[  180.912631][   T73]      ip6_route_info_create+0xf18/0x17d0
[  180.912631][   T73]      addrconf_f6i_alloc+0x265/0x560
[  180.912631][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  180.912631][   T73]      addrconf_join_anycast+0x1c0/0x220
[  180.912631][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  180.912631][   T73]      addrconf_dad_completed+0x12b/0xe20
[  180.912631][   T73]      addrconf_dad_begin+0x310/0x670
[  180.912631][   T73]      addrconf_dad_work+0x10b/0xab0
[  180.912631][   T73]      process_one_work+0x84d/0x18a0
[  180.912631][   T73]      worker_thread+0x587/0xd30
[  180.912631][   T73]      kthread+0x28a/0x350
[  180.912631][   T73]      ret_from_fork+0x31/0x70
[  180.912631][   T73]      ret_from_fork_asm+0x1a/0x30
[  180.912631][   T73] 
[  180.914909][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  180.914909][   T73]      netdev_get_by_index+0x5e/0x80
[  180.914909][   T73]      fib6_nh_init+0x3d8/0x1580
[  180.914909][   T73]      ip6_route_info_create+0xf18/0x17d0
[  180.914909][   T73]      ip6_route_add+0x1c/0x140
[  180.914909][   T73]      addrconf_prefix_route+0x2a6/0x430
[  180.914909][   T73]      inet6_addr_add+0x4f8/0xa40
[  180.914909][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  180.914909][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  180.914909][   T73]      netlink_rcv_skb+0x130/0x360
[  180.914909][   T73]      netlink_unicast+0x449/0x710
[  180.914909][   T73]      netlink_sendmsg+0x723/0xbe0
[  180.914909][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  180.914909][   T73]      ___sys_sendmsg+0xee/0x170
[  180.914909][   T73]      __sys_sendmsg+0xcd/0x170
[  180.914909][   T73]      do_syscall_64+0xc6/0x1e0
[  180.914909][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  180.914909][   T73] 
[  180.917201][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  180.917201][   T73]      netdev_get_by_index+0x5e/0x80
[  180.917201][   T73]      fib6_nh_init+0x3d8/0x1580
[  180.917201][   T73]      ip6_route_info_create+0xf18/0x17d0
[  180.917201][   T73]      addrconf_f6i_alloc+0x315/0x560
[  180.917201][   T73]      ipv6_add_addr+0x411/0x2000
[  180.917201][   T73]      inet6_addr_add+0x30e/0xa40
[  180.917201][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  180.917201][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  180.917201][   T73]      netlink_rcv_skb+0x130/0x360
[  180.917201][   T73]      netlink_unicast+0x449/0x710
[  180.917201][   T73]      netlink_sendmsg+0x723/0xbe0
[  180.917201][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  180.917201][   T73]      ___sys_sendmsg+0xee/0x170
[  180.917201][   T73]      __sys_sendmsg+0xcd/0x170
[  180.917201][   T73]      do_syscall_64+0xc6/0x1e0
[  180.917201][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  180.917201][   T73] 
[  180.919466][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  180.919466][   T73]      netdev_get_by_index+0x5e/0x80
[  180.919466][   T73]      fib6_nh_init+0x3d8/0x1580
[  180.919466][   T73]      ip6_route_info_create+0xf18/0x17d0
[  180.919466][   T73]      ip6_route_add+0x1c/0x140
[  180.919466][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  180.919466][   T73]      addrconf_add_dev+0xe2/0x170
[  180.919466][   T73]      inet6_addr_add+0x12f/0xa40
[  180.919466][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  180.919466][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  180.919466][   T73]      netlink_rcv_skb+0x130/0x360
[  180.919466][   T73]      netlink_unicast+0x449/0x710
[  180.919466][   T73]      netlink_sendmsg+0x723/0xbe0
[  180.919466][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  180.919466][   T73]      ___sys_sendmsg+0xee/0x170
[  180.919466][   T73]      __sys_sendmsg+0xcd/0x170
[  180.919466][   T73]      do_syscall_64+0xc6/0x1e0
[  180.919466][   T73] 
[  180.921766][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  180.921766][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  180.921766][   T73]      ipv6_find_idev+0x102/0x170
[  180.921766][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  180.921766][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  180.921766][   T73]      netlink_rcv_skb+0x130/0x360
[  180.921766][   T73]      netlink_unicast+0x449/0x710
[  180.921766][   T73]      netlink_sendmsg+0x723/0xbe0
[  180.921766][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  180.921766][   T73]      ___sys_sendmsg+0xee/0x170
[  180.921766][   T73]      __sys_sendmsg+0xcd/0x170
[  180.921766][   T73]      do_syscall_64+0xc6/0x1e0
[  180.921766][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  180.921766][   T73] 
[  180.923596][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  180.923596][   T73]      neigh_parms_alloc+0x1e5/0x510
[  180.923596][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  180.923596][   T73]      ipv6_find_idev+0x102/0x170
[  180.923596][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  180.923596][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  180.923596][   T73]      netlink_rcv_skb+0x130/0x360
[  180.923596][   T73]      netlink_unicast+0x449/0x710
[  180.923596][   T73]      netlink_sendmsg+0x723/0xbe0
[  180.923596][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  180.923596][   T73]      ___sys_sendmsg+0xee/0x170
[  180.923596][   T73]      __sys_sendmsg+0xcd/0x170
[  180.923596][   T73]      do_syscall_64+0xc6/0x1e0
[  180.923596][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  180.923596][   T73] 
[  190.943802][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  190.944268][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  190.944268][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  190.944268][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  190.944268][   T73]      fib6_nh_init+0xa22/0x1580
[  190.944268][   T73]      ip6_route_info_create+0xf18/0x17d0
[  190.944268][   T73]      ip6_route_add+0x1c/0x140
[  190.944268][   T73]      inet6_rtm_newroute+0x104/0x110
[  190.944268][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  190.944268][   T73]      netlink_rcv_skb+0x130/0x360
[  190.944268][   T73]      netlink_unicast+0x449/0x710
[  190.944268][   T73]      netlink_sendmsg+0x723/0xbe0
[  190.944268][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  190.944268][   T73]      ___sys_sendmsg+0xee/0x170
[  190.944268][   T73]      __sys_sendmsg+0xcd/0x170
[  190.944268][   T73]      do_syscall_64+0xc6/0x1e0
[  190.944268][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  190.944268][   T73] 
[  190.946422][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  190.946422][   T73]      dst_init+0x84/0x4a0
[  190.946422][   T73]      dst_alloc+0x97/0x150
[  190.946422][   T73]      ip6_dst_alloc+0x23/0x90
[  190.946422][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  190.946422][   T73]      ip6_pol_route+0x56f/0x840
[  190.946422][   T73]      fib6_rule_lookup+0x456/0x630
[  190.946422][   T73]      ip6_route_input+0x59c/0xa50
[  190.946422][   T73]      ipv6_rcv+0x397/0x810
[  190.946422][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  190.946422][   T73]      process_backlog+0x101/0x620
[  190.946422][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  190.946422][   T73]      net_rx_action+0x495/0xbe0
[  190.946422][   T73]      __do_softirq+0x1b5/0x7f6
[  190.946422][   T73] 
[  190.948410][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  190.948410][   T73]      netdev_get_by_index+0x5e/0x80
[  190.948410][   T73]      fib6_nh_init+0x3d8/0x1580
[  190.948410][   T73]      ip6_route_info_create+0xf18/0x17d0
[  190.948410][   T73]      ip6_route_add+0x1c/0x140
[  190.948410][   T73]      addrconf_prefix_route+0x2a6/0x430
[  190.948410][   T73]      inet6_addr_add+0x4f8/0xa40
[  190.948410][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  190.948410][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  190.948410][   T73]      netlink_rcv_skb+0x130/0x360
[  190.948410][   T73]      netlink_unicast+0x449/0x710
[  190.948410][   T73]      netlink_sendmsg+0x723/0xbe0
[  190.948410][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  190.948410][   T73]      ___sys_sendmsg+0xee/0x170
[  190.948410][   T73]      __sys_sendmsg+0xcd/0x170
[  190.948410][   T73]      do_syscall_64+0xc6/0x1e0
[  190.948410][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  190.948410][   T73] 
[  190.950629][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  190.950629][   T73]      netdev_get_by_index+0x5e/0x80
[  190.950629][   T73]      fib6_nh_init+0x3d8/0x1580
[  190.950629][   T73]      ip6_route_info_create+0xf18/0x17d0
[  190.950629][   T73]      addrconf_f6i_alloc+0x315/0x560
[  190.950629][   T73]      ipv6_add_addr+0x411/0x2000
[  190.950629][   T73]      inet6_addr_add+0x30e/0xa40
[  190.950629][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  190.950629][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  190.950629][   T73]      netlink_rcv_skb+0x130/0x360
[  190.950629][   T73]      netlink_unicast+0x449/0x710
[  190.950629][   T73]      netlink_sendmsg+0x723/0xbe0
[  190.950629][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  190.950629][   T73]      ___sys_sendmsg+0xee/0x170
[  190.950629][   T73]      __sys_sendmsg+0xcd/0x170
[  190.950629][   T73]      do_syscall_64+0xc6/0x1e0
[  190.950629][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  190.950629][   T73] 
[  190.952835][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  190.952835][   T73]      netdev_get_by_index+0x5e/0x80
[  190.952835][   T73]      fib6_nh_init+0x3d8/0x1580
[  190.952835][   T73]      ip6_route_info_create+0xf18/0x17d0
[  190.952835][   T73]      ip6_route_add+0x1c/0x140
[  190.952835][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  190.952835][   T73]      addrconf_add_dev+0xe2/0x170
[  190.952835][   T73]      inet6_addr_add+0x12f/0xa40
[  190.952835][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  190.952835][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  190.952835][   T73]      netlink_rcv_skb+0x130/0x360
[  190.952835][   T73]      netlink_unicast+0x449/0x710
[  190.952835][   T73]      netlink_sendmsg+0x723/0xbe0
[  190.952835][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  190.952835][   T73]      ___sys_sendmsg+0xee/0x170
[  190.952835][   T73]      __sys_sendmsg+0xcd/0x170
[  190.952835][   T73]      do_syscall_64+0xc6/0x1e0
[  190.952835][   T73] 
[  190.955811][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  190.955811][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  190.955811][   T73]      ipv6_find_idev+0x102/0x170
[  190.955811][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  190.955811][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  190.955811][   T73]      netlink_rcv_skb+0x130/0x360
[  190.955811][   T73]      netlink_unicast+0x449/0x710
[  190.955811][   T73]      netlink_sendmsg+0x723/0xbe0
[  190.955811][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  190.955811][   T73]      ___sys_sendmsg+0xee/0x170
[  190.955811][   T73]      __sys_sendmsg+0xcd/0x170
[  190.955811][   T73]      do_syscall_64+0xc6/0x1e0
[  190.955811][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  190.955811][   T73] 
[  190.958430][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  190.958430][   T73]      neigh_parms_alloc+0x1e5/0x510
[  190.958430][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  190.958430][   T73]      ipv6_find_idev+0x102/0x170
[  190.958430][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  190.958430][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  190.958430][   T73]      netlink_rcv_skb+0x130/0x360
[  190.958430][   T73]      netlink_unicast+0x449/0x710
[  190.958430][   T73]      netlink_sendmsg+0x723/0xbe0
[  190.958430][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  190.958430][   T73]      ___sys_sendmsg+0xee/0x170
[  190.958430][   T73]      __sys_sendmsg+0xcd/0x170
[  190.958430][   T73]      do_syscall_64+0xc6/0x1e0
[  190.958430][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  190.958430][   T73] 
[  190.961354][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  190.961856][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  190.961856][   T73]      netdev_get_by_index+0x5e/0x80
[  190.961856][   T73]      fib6_nh_init+0x3d8/0x1580
[  190.961856][   T73]      ip6_route_info_create+0xf18/0x17d0
[  190.961856][   T73]      addrconf_f6i_alloc+0x265/0x560
[  190.961856][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  190.961856][   T73]      addrconf_join_anycast+0x1c0/0x220
[  190.961856][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  190.961856][   T73]      addrconf_dad_completed+0x12b/0xe20
[  190.961856][   T73]      addrconf_dad_begin+0x310/0x670
[  190.961856][   T73]      addrconf_dad_work+0x10b/0xab0
[  190.961856][   T73]      process_one_work+0x84d/0x18a0
[  190.961856][   T73]      worker_thread+0x587/0xd30
[  190.961856][   T73]      kthread+0x28a/0x350
[  190.961856][   T73]      ret_from_fork+0x31/0x70
[  190.961856][   T73]      ret_from_fork_asm+0x1a/0x30
[  190.961856][   T73] 
[  190.965072][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  190.965072][   T73]      netdev_get_by_index+0x5e/0x80
[  190.965072][   T73]      fib6_nh_init+0x3d8/0x1580
[  190.965072][   T73]      ip6_route_info_create+0xf18/0x17d0
[  190.965072][   T73]      ip6_route_add+0x1c/0x140
[  190.965072][   T73]      addrconf_prefix_route+0x2a6/0x430
[  190.965072][   T73]      inet6_addr_add+0x4f8/0xa40
[  190.965072][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  190.965072][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  190.965072][   T73]      netlink_rcv_skb+0x130/0x360
[  190.965072][   T73]      netlink_unicast+0x449/0x710
[  190.965072][   T73]      netlink_sendmsg+0x723/0xbe0
[  190.965072][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  190.965072][   T73]      ___sys_sendmsg+0xee/0x170
[  190.965072][   T73]      __sys_sendmsg+0xcd/0x170
[  190.965072][   T73]      do_syscall_64+0xc6/0x1e0
[  190.965072][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  190.965072][   T73] 
[  190.968436][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  190.968436][   T73]      netdev_get_by_index+0x5e/0x80
[  190.968436][   T73]      fib6_nh_init+0x3d8/0x1580
[  190.968436][   T73]      ip6_route_info_create+0xf18/0x17d0
[  190.968436][   T73]      addrconf_f6i_alloc+0x315/0x560
[  190.968436][   T73]      ipv6_add_addr+0x411/0x2000
[  190.968436][   T73]      inet6_addr_add+0x30e/0xa40
[  190.968436][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  190.968436][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  190.968436][   T73]      netlink_rcv_skb+0x130/0x360
[  190.968436][   T73]      netlink_unicast+0x449/0x710
[  190.968436][   T73]      netlink_sendmsg+0x723/0xbe0
[  190.968436][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  190.968436][   T73]      ___sys_sendmsg+0xee/0x170
[  190.968436][   T73]      __sys_sendmsg+0xcd/0x170
[  190.968436][   T73]      do_syscall_64+0xc6/0x1e0
[  190.968436][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  190.968436][   T73] 
[  190.971652][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  190.971652][   T73]      netdev_get_by_index+0x5e/0x80
[  190.971652][   T73]      fib6_nh_init+0x3d8/0x1580
[  190.971652][   T73]      ip6_route_info_create+0xf18/0x17d0
[  190.971652][   T73]      ip6_route_add+0x1c/0x140
[  190.971652][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  190.971652][   T73]      addrconf_add_dev+0xe2/0x170
[  190.971652][   T73]      inet6_addr_add+0x12f/0xa40
[  190.971652][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  190.971652][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  190.971652][   T73]      netlink_rcv_skb+0x130/0x360
[  190.971652][   T73]      netlink_unicast+0x449/0x710
[  190.971652][   T73]      netlink_sendmsg+0x723/0xbe0
[  190.971652][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  190.971652][   T73]      ___sys_sendmsg+0xee/0x170
[  190.971652][   T73]      __sys_sendmsg+0xcd/0x170
[  190.971652][   T73]      do_syscall_64+0xc6/0x1e0
[  190.971652][   T73] 
[  190.974692][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  190.974692][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  190.974692][   T73]      ipv6_find_idev+0x102/0x170
[  190.974692][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  190.974692][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  190.974692][   T73]      netlink_rcv_skb+0x130/0x360
[  190.974692][   T73]      netlink_unicast+0x449/0x710
[  190.974692][   T73]      netlink_sendmsg+0x723/0xbe0
[  190.974692][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  190.974692][   T73]      ___sys_sendmsg+0xee/0x170
[  190.974692][   T73]      __sys_sendmsg+0xcd/0x170
[  190.974692][   T73]      do_syscall_64+0xc6/0x1e0
[  190.974692][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  190.974692][   T73] 
[  190.977070][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  190.977070][   T73]      neigh_parms_alloc+0x1e5/0x510
[  190.977070][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  190.977070][   T73]      ipv6_find_idev+0x102/0x170
[  190.977070][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  190.977070][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  190.977070][   T73]      netlink_rcv_skb+0x130/0x360
[  190.977070][   T73]      netlink_unicast+0x449/0x710
[  190.977070][   T73]      netlink_sendmsg+0x723/0xbe0
[  190.977070][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  190.977070][   T73]      ___sys_sendmsg+0xee/0x170
[  190.977070][   T73]      __sys_sendmsg+0xcd/0x170
[  190.977070][   T73]      do_syscall_64+0xc6/0x1e0
[  190.977070][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  190.977070][   T73] 
[  190.979767][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  190.980172][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  190.980172][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  190.980172][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  190.980172][   T73]      fib6_nh_init+0xa22/0x1580
[  190.980172][   T73]      ip6_route_info_create+0xf18/0x17d0
[  190.980172][   T73]      ip6_route_add+0x1c/0x140
[  190.980172][   T73]      inet6_rtm_newroute+0x104/0x110
[  190.980172][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  190.980172][   T73]      netlink_rcv_skb+0x130/0x360
[  190.980172][   T73]      netlink_unicast+0x449/0x710
[  190.980172][   T73]      netlink_sendmsg+0x723/0xbe0
[  190.980172][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  190.980172][   T73]      ___sys_sendmsg+0xee/0x170
[  190.980172][   T73]      __sys_sendmsg+0xcd/0x170
[  190.980172][   T73]      do_syscall_64+0xc6/0x1e0
[  190.980172][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  190.980172][   T73] 
[  190.983265][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  190.983265][   T73]      dst_init+0x84/0x4a0
[  190.983265][   T73]      dst_alloc+0x97/0x150
[  190.983265][   T73]      ip6_dst_alloc+0x23/0x90
[  190.983265][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  190.983265][   T73]      ip6_pol_route+0x56f/0x840
[  190.983265][   T73]      fib6_rule_lookup+0x456/0x630
[  190.983265][   T73]      ip6_route_input+0x59c/0xa50
[  190.983265][   T73]      ipv6_rcv+0x397/0x810
[  190.983265][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  190.983265][   T73]      process_backlog+0x101/0x620
[  190.983265][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  190.983265][   T73]      net_rx_action+0x495/0xbe0
[  190.983265][   T73]      __do_softirq+0x1b5/0x7f6
[  190.983265][   T73] 
[  190.986531][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  190.986531][   T73]      netdev_get_by_index+0x5e/0x80
[  190.986531][   T73]      fib6_nh_init+0x3d8/0x1580
[  190.986531][   T73]      ip6_route_info_create+0xf18/0x17d0
[  190.986531][   T73]      ip6_route_add+0x1c/0x140
[  190.986531][   T73]      addrconf_prefix_route+0x2a6/0x430
[  190.986531][   T73]      inet6_addr_add+0x4f8/0xa40
[  190.986531][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  190.986531][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  190.986531][   T73]      netlink_rcv_skb+0x130/0x360
[  190.986531][   T73]      netlink_unicast+0x449/0x710
[  190.986531][   T73]      netlink_sendmsg+0x723/0xbe0
[  190.986531][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  190.986531][   T73]      ___sys_sendmsg+0xee/0x170
[  190.986531][   T73]      __sys_sendmsg+0xcd/0x170
[  190.986531][   T73]      do_syscall_64+0xc6/0x1e0
[  190.986531][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  190.986531][   T73] 
[  190.990190][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  190.990190][   T73]      netdev_get_by_index+0x5e/0x80
[  190.990190][   T73]      fib6_nh_init+0x3d8/0x1580
[  190.990190][   T73]      ip6_route_info_create+0xf18/0x17d0
[  190.990190][   T73]      addrconf_f6i_alloc+0x315/0x560
[  190.990190][   T73]      ipv6_add_addr+0x411/0x2000
[  190.990190][   T73]      inet6_addr_add+0x30e/0xa40
[  190.990190][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  190.990190][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  190.990190][   T73]      netlink_rcv_skb+0x130/0x360
[  190.990190][   T73]      netlink_unicast+0x449/0x710
[  190.990190][   T73]      netlink_sendmsg+0x723/0xbe0
[  190.990190][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  190.990190][   T73]      ___sys_sendmsg+0xee/0x170
[  190.990190][   T73]      __sys_sendmsg+0xcd/0x170
[  190.990190][   T73]      do_syscall_64+0xc6/0x1e0
[  190.990190][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  190.990190][   T73] 
[  190.993961][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  190.993961][   T73]      netdev_get_by_index+0x5e/0x80
[  190.993961][   T73]      fib6_nh_init+0x3d8/0x1580
[  190.993961][   T73]      ip6_route_info_create+0xf18/0x17d0
[  190.993961][   T73]      ip6_route_add+0x1c/0x140
[  190.993961][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  190.993961][   T73]      addrconf_add_dev+0xe2/0x170
[  190.993961][   T73]      inet6_addr_add+0x12f/0xa40
[  190.993961][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  190.993961][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  190.993961][   T73]      netlink_rcv_skb+0x130/0x360
[  190.993961][   T73]      netlink_unicast+0x449/0x710
[  190.993961][   T73]      netlink_sendmsg+0x723/0xbe0
[  190.993961][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  190.993961][   T73]      ___sys_sendmsg+0xee/0x170
[  190.993961][   T73]      __sys_sendmsg+0xcd/0x170
[  190.993961][   T73]      do_syscall_64+0xc6/0x1e0
[  190.993961][   T73] 
[  190.997535][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  190.997535][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  190.997535][   T73]      ipv6_find_idev+0x102/0x170
[  190.997535][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  190.997535][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  190.997535][   T73]      netlink_rcv_skb+0x130/0x360
[  190.997535][   T73]      netlink_unicast+0x449/0x710
[  190.997535][   T73]      netlink_sendmsg+0x723/0xbe0
[  190.997535][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  190.997535][   T73]      ___sys_sendmsg+0xee/0x170
[  190.997535][   T73]      __sys_sendmsg+0xcd/0x170
[  190.997535][   T73]      do_syscall_64+0xc6/0x1e0
[  190.997535][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  190.997535][   T73] 
[  191.000429][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  191.000429][   T73]      neigh_parms_alloc+0x1e5/0x510
[  191.000429][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  191.000429][   T73]      ipv6_find_idev+0x102/0x170
[  191.000429][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  191.000429][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  191.000429][   T73]      netlink_rcv_skb+0x130/0x360
[  191.000429][   T73]      netlink_unicast+0x449/0x710
[  191.000429][   T73]      netlink_sendmsg+0x723/0xbe0
[  191.000429][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  191.000429][   T73]      ___sys_sendmsg+0xee/0x170
[  191.000429][   T73]      __sys_sendmsg+0xcd/0x170
[  191.000429][   T73]      do_syscall_64+0xc6/0x1e0
[  191.000429][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  191.000429][   T73] 
[  191.003482][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  191.004912][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  191.004912][   T73]      netdev_get_by_index+0x5e/0x80
[  191.004912][   T73]      fib6_nh_init+0x3d8/0x1580
[  191.004912][   T73]      ip6_route_info_create+0xf18/0x17d0
[  191.004912][   T73]      addrconf_f6i_alloc+0x265/0x560
[  191.004912][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  191.004912][   T73]      addrconf_join_anycast+0x1c0/0x220
[  191.004912][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  191.004912][   T73]      addrconf_dad_completed+0x12b/0xe20
[  191.004912][   T73]      addrconf_dad_begin+0x310/0x670
[  191.004912][   T73]      addrconf_dad_work+0x10b/0xab0
[  191.004912][   T73]      process_one_work+0x84d/0x18a0
[  191.004912][   T73]      worker_thread+0x587/0xd30
[  191.004912][   T73]      kthread+0x28a/0x350
[  191.004912][   T73]      ret_from_fork+0x31/0x70
[  191.004912][   T73]      ret_from_fork_asm+0x1a/0x30
[  191.004912][   T73] 
[  191.007937][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  191.007937][   T73]      netdev_get_by_index+0x5e/0x80
[  191.007937][   T73]      fib6_nh_init+0x3d8/0x1580
[  191.007937][   T73]      ip6_route_info_create+0xf18/0x17d0
[  191.007937][   T73]      ip6_route_add+0x1c/0x140
[  191.007937][   T73]      addrconf_prefix_route+0x2a6/0x430
[  191.007937][   T73]      inet6_addr_add+0x4f8/0xa40
[  191.007937][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  191.007937][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  191.007937][   T73]      netlink_rcv_skb+0x130/0x360
[  191.007937][   T73]      netlink_unicast+0x449/0x710
[  191.007937][   T73]      netlink_sendmsg+0x723/0xbe0
[  191.007937][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  191.007937][   T73]      ___sys_sendmsg+0xee/0x170
[  191.007937][   T73]      __sys_sendmsg+0xcd/0x170
[  191.007937][   T73]      do_syscall_64+0xc6/0x1e0
[  191.007937][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  191.007937][   T73] 
[  191.011383][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  191.011383][   T73]      netdev_get_by_index+0x5e/0x80
[  191.011383][   T73]      fib6_nh_init+0x3d8/0x1580
[  191.011383][   T73]      ip6_route_info_create+0xf18/0x17d0
[  191.011383][   T73]      addrconf_f6i_alloc+0x315/0x560
[  191.011383][   T73]      ipv6_add_addr+0x411/0x2000
[  191.011383][   T73]      inet6_addr_add+0x30e/0xa40
[  191.011383][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  191.011383][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  191.011383][   T73]      netlink_rcv_skb+0x130/0x360
[  191.011383][   T73]      netlink_unicast+0x449/0x710
[  191.011383][   T73]      netlink_sendmsg+0x723/0xbe0
[  191.011383][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  191.011383][   T73]      ___sys_sendmsg+0xee/0x170
[  191.011383][   T73]      __sys_sendmsg+0xcd/0x170
[  191.011383][   T73]      do_syscall_64+0xc6/0x1e0
[  191.011383][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  191.011383][   T73] 
[  191.014995][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  191.014995][   T73]      netdev_get_by_index+0x5e/0x80
[  191.014995][   T73]      fib6_nh_init+0x3d8/0x1580
[  191.014995][   T73]      ip6_route_info_create+0xf18/0x17d0
[  191.014995][   T73]      ip6_route_add+0x1c/0x140
[  191.014995][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  191.014995][   T73]      addrconf_add_dev+0xe2/0x170
[  191.014995][   T73]      inet6_addr_add+0x12f/0xa40
[  191.014995][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  191.014995][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  191.014995][   T73]      netlink_rcv_skb+0x130/0x360
[  191.014995][   T73]      netlink_unicast+0x449/0x710
[  191.014995][   T73]      netlink_sendmsg+0x723/0xbe0
[  191.014995][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  191.014995][   T73]      ___sys_sendmsg+0xee/0x170
[  191.014995][   T73]      __sys_sendmsg+0xcd/0x170
[  191.014995][   T73]      do_syscall_64+0xc6/0x1e0
[  191.014995][   T73] 
[  191.018549][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  191.018549][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  191.018549][   T73]      ipv6_find_idev+0x102/0x170
[  191.018549][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  191.018549][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  191.018549][   T73]      netlink_rcv_skb+0x130/0x360
[  191.018549][   T73]      netlink_unicast+0x449/0x710
[  191.018549][   T73]      netlink_sendmsg+0x723/0xbe0
[  191.018549][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  191.018549][   T73]      ___sys_sendmsg+0xee/0x170
[  191.018549][   T73]      __sys_sendmsg+0xcd/0x170
[  191.018549][   T73]      do_syscall_64+0xc6/0x1e0
[  191.018549][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  191.018549][   T73] 
[  191.021137][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  191.021137][   T73]      neigh_parms_alloc+0x1e5/0x510
[  191.021137][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  191.021137][   T73]      ipv6_find_idev+0x102/0x170
[  191.021137][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  191.021137][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  191.021137][   T73]      netlink_rcv_skb+0x130/0x360
[  191.021137][   T73]      netlink_unicast+0x449/0x710
[  191.021137][   T73]      netlink_sendmsg+0x723/0xbe0
[  191.021137][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  191.021137][   T73]      ___sys_sendmsg+0xee/0x170
[  191.021137][   T73]      __sys_sendmsg+0xcd/0x170
[  191.021137][   T73]      do_syscall_64+0xc6/0x1e0
[  191.021137][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  191.021137][   T73] 
[  201.263787][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  201.264449][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  201.264449][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  201.264449][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  201.264449][   T73]      fib6_nh_init+0xa22/0x1580
[  201.264449][   T73]      ip6_route_info_create+0xf18/0x17d0
[  201.264449][   T73]      ip6_route_add+0x1c/0x140
[  201.264449][   T73]      inet6_rtm_newroute+0x104/0x110
[  201.264449][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  201.264449][   T73]      netlink_rcv_skb+0x130/0x360
[  201.264449][   T73]      netlink_unicast+0x449/0x710
[  201.264449][   T73]      netlink_sendmsg+0x723/0xbe0
[  201.264449][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  201.264449][   T73]      ___sys_sendmsg+0xee/0x170
[  201.264449][   T73]      __sys_sendmsg+0xcd/0x170
[  201.264449][   T73]      do_syscall_64+0xc6/0x1e0
[  201.264449][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  201.264449][   T73] 
[  201.267608][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  201.267608][   T73]      dst_init+0x84/0x4a0
[  201.267608][   T73]      dst_alloc+0x97/0x150
[  201.267608][   T73]      ip6_dst_alloc+0x23/0x90
[  201.267608][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  201.267608][   T73]      ip6_pol_route+0x56f/0x840
[  201.267608][   T73]      fib6_rule_lookup+0x456/0x630
[  201.267608][   T73]      ip6_route_input+0x59c/0xa50
[  201.267608][   T73]      ipv6_rcv+0x397/0x810
[  201.267608][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  201.267608][   T73]      process_backlog+0x101/0x620
[  201.267608][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  201.267608][   T73]      net_rx_action+0x495/0xbe0
[  201.267608][   T73]      __do_softirq+0x1b5/0x7f6
[  201.267608][   T73] 
[  201.270333][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  201.270333][   T73]      netdev_get_by_index+0x5e/0x80
[  201.270333][   T73]      fib6_nh_init+0x3d8/0x1580
[  201.270333][   T73]      ip6_route_info_create+0xf18/0x17d0
[  201.270333][   T73]      ip6_route_add+0x1c/0x140
[  201.270333][   T73]      addrconf_prefix_route+0x2a6/0x430
[  201.270333][   T73]      inet6_addr_add+0x4f8/0xa40
[  201.270333][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  201.270333][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  201.270333][   T73]      netlink_rcv_skb+0x130/0x360
[  201.270333][   T73]      netlink_unicast+0x449/0x710
[  201.270333][   T73]      netlink_sendmsg+0x723/0xbe0
[  201.270333][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  201.270333][   T73]      ___sys_sendmsg+0xee/0x170
[  201.270333][   T73]      __sys_sendmsg+0xcd/0x170
[  201.270333][   T73]      do_syscall_64+0xc6/0x1e0
[  201.270333][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  201.270333][   T73] 
[  201.273522][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  201.273522][   T73]      netdev_get_by_index+0x5e/0x80
[  201.273522][   T73]      fib6_nh_init+0x3d8/0x1580
[  201.273522][   T73]      ip6_route_info_create+0xf18/0x17d0
[  201.273522][   T73]      addrconf_f6i_alloc+0x315/0x560
[  201.273522][   T73]      ipv6_add_addr+0x411/0x2000
[  201.273522][   T73]      inet6_addr_add+0x30e/0xa40
[  201.273522][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  201.273522][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  201.273522][   T73]      netlink_rcv_skb+0x130/0x360
[  201.273522][   T73]      netlink_unicast+0x449/0x710
[  201.273522][   T73]      netlink_sendmsg+0x723/0xbe0
[  201.273522][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  201.273522][   T73]      ___sys_sendmsg+0xee/0x170
[  201.273522][   T73]      __sys_sendmsg+0xcd/0x170
[  201.273522][   T73]      do_syscall_64+0xc6/0x1e0
[  201.273522][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  201.273522][   T73] 
[  201.276657][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  201.276657][   T73]      netdev_get_by_index+0x5e/0x80
[  201.276657][   T73]      fib6_nh_init+0x3d8/0x1580
[  201.276657][   T73]      ip6_route_info_create+0xf18/0x17d0
[  201.276657][   T73]      ip6_route_add+0x1c/0x140
[  201.276657][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  201.276657][   T73]      addrconf_add_dev+0xe2/0x170
[  201.276657][   T73]      inet6_addr_add+0x12f/0xa40
[  201.276657][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  201.276657][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  201.276657][   T73]      netlink_rcv_skb+0x130/0x360
[  201.276657][   T73]      netlink_unicast+0x449/0x710
[  201.276657][   T73]      netlink_sendmsg+0x723/0xbe0
[  201.276657][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  201.276657][   T73]      ___sys_sendmsg+0xee/0x170
[  201.276657][   T73]      __sys_sendmsg+0xcd/0x170
[  201.276657][   T73]      do_syscall_64+0xc6/0x1e0
[  201.276657][   T73] 
[  201.279696][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  201.279696][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  201.279696][   T73]      ipv6_find_idev+0x102/0x170
[  201.279696][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  201.279696][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  201.279696][   T73]      netlink_rcv_skb+0x130/0x360
[  201.279696][   T73]      netlink_unicast+0x449/0x710
[  201.279696][   T73]      netlink_sendmsg+0x723/0xbe0
[  201.279696][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  201.279696][   T73]      ___sys_sendmsg+0xee/0x170
[  201.279696][   T73]      __sys_sendmsg+0xcd/0x170
[  201.279696][   T73]      do_syscall_64+0xc6/0x1e0
[  201.279696][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  201.279696][   T73] 
[  201.282222][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  201.282222][   T73]      neigh_parms_alloc+0x1e5/0x510
[  201.282222][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  201.282222][   T73]      ipv6_find_idev+0x102/0x170
[  201.282222][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  201.282222][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  201.282222][   T73]      netlink_rcv_skb+0x130/0x360
[  201.282222][   T73]      netlink_unicast+0x449/0x710
[  201.282222][   T73]      netlink_sendmsg+0x723/0xbe0
[  201.282222][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  201.282222][   T73]      ___sys_sendmsg+0xee/0x170
[  201.282222][   T73]      __sys_sendmsg+0xcd/0x170
[  201.282222][   T73]      do_syscall_64+0xc6/0x1e0
[  201.282222][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  201.282222][   T73] 
[  201.284852][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  201.285295][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  201.285295][   T73]      netdev_get_by_index+0x5e/0x80
[  201.285295][   T73]      fib6_nh_init+0x3d8/0x1580
[  201.285295][   T73]      ip6_route_info_create+0xf18/0x17d0
[  201.285295][   T73]      addrconf_f6i_alloc+0x265/0x560
[  201.285295][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  201.285295][   T73]      addrconf_join_anycast+0x1c0/0x220
[  201.285295][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  201.285295][   T73]      addrconf_dad_completed+0x12b/0xe20
[  201.285295][   T73]      addrconf_dad_begin+0x310/0x670
[  201.285295][   T73]      addrconf_dad_work+0x10b/0xab0
[  201.285295][   T73]      process_one_work+0x84d/0x18a0
[  201.285295][   T73]      worker_thread+0x587/0xd30
[  201.285295][   T73]      kthread+0x28a/0x350
[  201.285295][   T73]      ret_from_fork+0x31/0x70
[  201.285295][   T73]      ret_from_fork_asm+0x1a/0x30
[  201.285295][   T73] 
[  201.288240][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  201.288240][   T73]      netdev_get_by_index+0x5e/0x80
[  201.288240][   T73]      fib6_nh_init+0x3d8/0x1580
[  201.288240][   T73]      ip6_route_info_create+0xf18/0x17d0
[  201.288240][   T73]      ip6_route_add+0x1c/0x140
[  201.288240][   T73]      addrconf_prefix_route+0x2a6/0x430
[  201.288240][   T73]      inet6_addr_add+0x4f8/0xa40
[  201.288240][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  201.288240][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  201.288240][   T73]      netlink_rcv_skb+0x130/0x360
[  201.288240][   T73]      netlink_unicast+0x449/0x710
[  201.288240][   T73]      netlink_sendmsg+0x723/0xbe0
[  201.288240][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  201.288240][   T73]      ___sys_sendmsg+0xee/0x170
[  201.288240][   T73]      __sys_sendmsg+0xcd/0x170
[  201.288240][   T73]      do_syscall_64+0xc6/0x1e0
[  201.288240][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  201.288240][   T73] 
[  201.291354][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  201.291354][   T73]      netdev_get_by_index+0x5e/0x80
[  201.291354][   T73]      fib6_nh_init+0x3d8/0x1580
[  201.291354][   T73]      ip6_route_info_create+0xf18/0x17d0
[  201.291354][   T73]      addrconf_f6i_alloc+0x315/0x560
[  201.291354][   T73]      ipv6_add_addr+0x411/0x2000
[  201.291354][   T73]      inet6_addr_add+0x30e/0xa40
[  201.291354][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  201.291354][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  201.291354][   T73]      netlink_rcv_skb+0x130/0x360
[  201.291354][   T73]      netlink_unicast+0x449/0x710
[  201.291354][   T73]      netlink_sendmsg+0x723/0xbe0
[  201.291354][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  201.291354][   T73]      ___sys_sendmsg+0xee/0x170
[  201.291354][   T73]      __sys_sendmsg+0xcd/0x170
[  201.291354][   T73]      do_syscall_64+0xc6/0x1e0
[  201.291354][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  201.291354][   T73] 
[  201.294303][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  201.294303][   T73]      netdev_get_by_index+0x5e/0x80
[  201.294303][   T73]      fib6_nh_init+0x3d8/0x1580
[  201.294303][   T73]      ip6_route_info_create+0xf18/0x17d0
[  201.294303][   T73]      ip6_route_add+0x1c/0x140
[  201.294303][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  201.294303][   T73]      addrconf_add_dev+0xe2/0x170
[  201.294303][   T73]      inet6_addr_add+0x12f/0xa40
[  201.294303][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  201.294303][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  201.294303][   T73]      netlink_rcv_skb+0x130/0x360
[  201.294303][   T73]      netlink_unicast+0x449/0x710
[  201.294303][   T73]      netlink_sendmsg+0x723/0xbe0
[  201.294303][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  201.294303][   T73]      ___sys_sendmsg+0xee/0x170
[  201.294303][   T73]      __sys_sendmsg+0xcd/0x170
[  201.294303][   T73]      do_syscall_64+0xc6/0x1e0
[  201.294303][   T73] 
[  201.297490][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  201.297490][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  201.297490][   T73]      ipv6_find_idev+0x102/0x170
[  201.297490][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  201.297490][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  201.297490][   T73]      netlink_rcv_skb+0x130/0x360
[  201.297490][   T73]      netlink_unicast+0x449/0x710
[  201.297490][   T73]      netlink_sendmsg+0x723/0xbe0
[  201.297490][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  201.297490][   T73]      ___sys_sendmsg+0xee/0x170
[  201.297490][   T73]      __sys_sendmsg+0xcd/0x170
[  201.297490][   T73]      do_syscall_64+0xc6/0x1e0
[  201.297490][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  201.297490][   T73] 
[  201.299885][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  201.299885][   T73]      neigh_parms_alloc+0x1e5/0x510
[  201.299885][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  201.299885][   T73]      ipv6_find_idev+0x102/0x170
[  201.299885][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  201.299885][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  201.299885][   T73]      netlink_rcv_skb+0x130/0x360
[  201.299885][   T73]      netlink_unicast+0x449/0x710
[  201.299885][   T73]      netlink_sendmsg+0x723/0xbe0
[  201.299885][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  201.299885][   T73]      ___sys_sendmsg+0xee/0x170
[  201.299885][   T73]      __sys_sendmsg+0xcd/0x170
[  201.299885][   T73]      do_syscall_64+0xc6/0x1e0
[  201.299885][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  201.299885][   T73] 
[  201.302021][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  201.302355][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  201.302355][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  201.302355][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  201.302355][   T73]      fib6_nh_init+0xa22/0x1580
[  201.302355][   T73]      ip6_route_info_create+0xf18/0x17d0
[  201.302355][   T73]      ip6_route_add+0x1c/0x140
[  201.302355][   T73]      inet6_rtm_newroute+0x104/0x110
[  201.302355][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  201.302355][   T73]      netlink_rcv_skb+0x130/0x360
[  201.302355][   T73]      netlink_unicast+0x449/0x710
[  201.302355][   T73]      netlink_sendmsg+0x723/0xbe0
[  201.302355][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  201.302355][   T73]      ___sys_sendmsg+0xee/0x170
[  201.302355][   T73]      __sys_sendmsg+0xcd/0x170
[  201.302355][   T73]      do_syscall_64+0xc6/0x1e0
[  201.302355][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  201.302355][   T73] 
[  201.304858][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  201.304858][   T73]      dst_init+0x84/0x4a0
[  201.304858][   T73]      dst_alloc+0x97/0x150
[  201.304858][   T73]      ip6_dst_alloc+0x23/0x90
[  201.304858][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  201.304858][   T73]      ip6_pol_route+0x56f/0x840
[  201.304858][   T73]      fib6_rule_lookup+0x456/0x630
[  201.304858][   T73]      ip6_route_input+0x59c/0xa50
[  201.304858][   T73]      ipv6_rcv+0x397/0x810
[  201.304858][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  201.304858][   T73]      process_backlog+0x101/0x620
[  201.304858][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  201.304858][   T73]      net_rx_action+0x495/0xbe0
[  201.304858][   T73]      __do_softirq+0x1b5/0x7f6
[  201.304858][   T73] 
[  201.307962][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  201.307962][   T73]      netdev_get_by_index+0x5e/0x80
[  201.307962][   T73]      fib6_nh_init+0x3d8/0x1580
[  201.307962][   T73]      ip6_route_info_create+0xf18/0x17d0
[  201.307962][   T73]      ip6_route_add+0x1c/0x140
[  201.307962][   T73]      addrconf_prefix_route+0x2a6/0x430
[  201.307962][   T73]      inet6_addr_add+0x4f8/0xa40
[  201.307962][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  201.307962][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  201.307962][   T73]      netlink_rcv_skb+0x130/0x360
[  201.307962][   T73]      netlink_unicast+0x449/0x710
[  201.307962][   T73]      netlink_sendmsg+0x723/0xbe0
[  201.307962][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  201.307962][   T73]      ___sys_sendmsg+0xee/0x170
[  201.307962][   T73]      __sys_sendmsg+0xcd/0x170
[  201.307962][   T73]      do_syscall_64+0xc6/0x1e0
[  201.307962][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  201.307962][   T73] 
[  201.311425][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  201.311425][   T73]      netdev_get_by_index+0x5e/0x80
[  201.311425][   T73]      fib6_nh_init+0x3d8/0x1580
[  201.311425][   T73]      ip6_route_info_create+0xf18/0x17d0
[  201.311425][   T73]      addrconf_f6i_alloc+0x315/0x560
[  201.311425][   T73]      ipv6_add_addr+0x411/0x2000
[  201.311425][   T73]      inet6_addr_add+0x30e/0xa40
[  201.311425][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  201.311425][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  201.311425][   T73]      netlink_rcv_skb+0x130/0x360
[  201.311425][   T73]      netlink_unicast+0x449/0x710
[  201.311425][   T73]      netlink_sendmsg+0x723/0xbe0
[  201.311425][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  201.311425][   T73]      ___sys_sendmsg+0xee/0x170
[  201.311425][   T73]      __sys_sendmsg+0xcd/0x170
[  201.311425][   T73]      do_syscall_64+0xc6/0x1e0
[  201.311425][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  201.311425][   T73] 
[  201.315144][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  201.315144][   T73]      netdev_get_by_index+0x5e/0x80
[  201.315144][   T73]      fib6_nh_init+0x3d8/0x1580
[  201.315144][   T73]      ip6_route_info_create+0xf18/0x17d0
[  201.315144][   T73]      ip6_route_add+0x1c/0x140
[  201.315144][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  201.315144][   T73]      addrconf_add_dev+0xe2/0x170
[  201.315144][   T73]      inet6_addr_add+0x12f/0xa40
[  201.315144][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  201.315144][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  201.315144][   T73]      netlink_rcv_skb+0x130/0x360
[  201.315144][   T73]      netlink_unicast+0x449/0x710
[  201.315144][   T73]      netlink_sendmsg+0x723/0xbe0
[  201.315144][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  201.315144][   T73]      ___sys_sendmsg+0xee/0x170
[  201.315144][   T73]      __sys_sendmsg+0xcd/0x170
[  201.315144][   T73]      do_syscall_64+0xc6/0x1e0
[  201.315144][   T73] 
[  201.318781][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  201.318781][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  201.318781][   T73]      ipv6_find_idev+0x102/0x170
[  201.318781][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  201.318781][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  201.318781][   T73]      netlink_rcv_skb+0x130/0x360
[  201.318781][   T73]      netlink_unicast+0x449/0x710
[  201.318781][   T73]      netlink_sendmsg+0x723/0xbe0
[  201.318781][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  201.318781][   T73]      ___sys_sendmsg+0xee/0x170
[  201.318781][   T73]      __sys_sendmsg+0xcd/0x170
[  201.318781][   T73]      do_syscall_64+0xc6/0x1e0
[  201.318781][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  201.318781][   T73] 
[  201.321717][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  201.321717][   T73]      neigh_parms_alloc+0x1e5/0x510
[  201.321717][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  201.321717][   T73]      ipv6_find_idev+0x102/0x170
[  201.321717][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  201.321717][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  201.321717][   T73]      netlink_rcv_skb+0x130/0x360
[  201.321717][   T73]      netlink_unicast+0x449/0x710
[  201.321717][   T73]      netlink_sendmsg+0x723/0xbe0
[  201.321717][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  201.321717][   T73]      ___sys_sendmsg+0xee/0x170
[  201.321717][   T73]      __sys_sendmsg+0xcd/0x170
[  201.321717][   T73]      do_syscall_64+0xc6/0x1e0
[  201.321717][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  201.321717][   T73] 
[  201.324834][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  201.325423][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  201.325423][   T73]      netdev_get_by_index+0x5e/0x80
[  201.325423][   T73]      fib6_nh_init+0x3d8/0x1580
[  201.325423][   T73]      ip6_route_info_create+0xf18/0x17d0
[  201.325423][   T73]      addrconf_f6i_alloc+0x265/0x560
[  201.325423][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  201.325423][   T73]      addrconf_join_anycast+0x1c0/0x220
[  201.325423][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  201.325423][   T73]      addrconf_dad_completed+0x12b/0xe20
[  201.325423][   T73]      addrconf_dad_begin+0x310/0x670
[  201.325423][   T73]      addrconf_dad_work+0x10b/0xab0
[  201.325423][   T73]      process_one_work+0x84d/0x18a0
[  201.325423][   T73]      worker_thread+0x587/0xd30
[  201.325423][   T73]      kthread+0x28a/0x350
[  201.325423][   T73]      ret_from_fork+0x31/0x70
[  201.325423][   T73]      ret_from_fork_asm+0x1a/0x30
[  201.325423][   T73] 
[  201.328819][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  201.328819][   T73]      netdev_get_by_index+0x5e/0x80
[  201.328819][   T73]      fib6_nh_init+0x3d8/0x1580
[  201.328819][   T73]      ip6_route_info_create+0xf18/0x17d0
[  201.328819][   T73]      ip6_route_add+0x1c/0x140
[  201.328819][   T73]      addrconf_prefix_route+0x2a6/0x430
[  201.328819][   T73]      inet6_addr_add+0x4f8/0xa40
[  201.328819][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  201.328819][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  201.328819][   T73]      netlink_rcv_skb+0x130/0x360
[  201.328819][   T73]      netlink_unicast+0x449/0x710
[  201.328819][   T73]      netlink_sendmsg+0x723/0xbe0
[  201.328819][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  201.328819][   T73]      ___sys_sendmsg+0xee/0x170
[  201.328819][   T73]      __sys_sendmsg+0xcd/0x170
[  201.328819][   T73]      do_syscall_64+0xc6/0x1e0
[  201.328819][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  201.328819][   T73] 
[  201.332513][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  201.332513][   T73]      netdev_get_by_index+0x5e/0x80
[  201.332513][   T73]      fib6_nh_init+0x3d8/0x1580
[  201.332513][   T73]      ip6_route_info_create+0xf18/0x17d0
[  201.332513][   T73]      addrconf_f6i_alloc+0x315/0x560
[  201.332513][   T73]      ipv6_add_addr+0x411/0x2000
[  201.332513][   T73]      inet6_addr_add+0x30e/0xa40
[  201.332513][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  201.332513][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  201.332513][   T73]      netlink_rcv_skb+0x130/0x360
[  201.332513][   T73]      netlink_unicast+0x449/0x710
[  201.332513][   T73]      netlink_sendmsg+0x723/0xbe0
[  201.332513][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  201.332513][   T73]      ___sys_sendmsg+0xee/0x170
[  201.332513][   T73]      __sys_sendmsg+0xcd/0x170
[  201.332513][   T73]      do_syscall_64+0xc6/0x1e0
[  201.332513][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  201.332513][   T73] 
[  201.336249][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  201.336249][   T73]      netdev_get_by_index+0x5e/0x80
[  201.336249][   T73]      fib6_nh_init+0x3d8/0x1580
[  201.336249][   T73]      ip6_route_info_create+0xf18/0x17d0
[  201.336249][   T73]      ip6_route_add+0x1c/0x140
[  201.336249][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  201.336249][   T73]      addrconf_add_dev+0xe2/0x170
[  201.336249][   T73]      inet6_addr_add+0x12f/0xa40
[  201.336249][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  201.336249][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  201.336249][   T73]      netlink_rcv_skb+0x130/0x360
[  201.336249][   T73]      netlink_unicast+0x449/0x710
[  201.336249][   T73]      netlink_sendmsg+0x723/0xbe0
[  201.336249][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  201.336249][   T73]      ___sys_sendmsg+0xee/0x170
[  201.336249][   T73]      __sys_sendmsg+0xcd/0x170
[  201.336249][   T73]      do_syscall_64+0xc6/0x1e0
[  201.336249][   T73] 
[  201.338931][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  201.338931][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  201.338931][   T73]      ipv6_find_idev+0x102/0x170
[  201.338931][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  201.338931][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  201.338931][   T73]      netlink_rcv_skb+0x130/0x360
[  201.338931][   T73]      netlink_unicast+0x449/0x710
[  201.338931][   T73]      netlink_sendmsg+0x723/0xbe0
[  201.338931][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  201.338931][   T73]      ___sys_sendmsg+0xee/0x170
[  201.338931][   T73]      __sys_sendmsg+0xcd/0x170
[  201.338931][   T73]      do_syscall_64+0xc6/0x1e0
[  201.338931][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  201.338931][   T73] 
[  201.340829][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  201.340829][   T73]      neigh_parms_alloc+0x1e5/0x510
[  201.340829][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  201.340829][   T73]      ipv6_find_idev+0x102/0x170
[  201.340829][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  201.340829][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  201.340829][   T73]      netlink_rcv_skb+0x130/0x360
[  201.340829][   T73]      netlink_unicast+0x449/0x710
[  201.340829][   T73]      netlink_sendmsg+0x723/0xbe0
[  201.340829][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  201.340829][   T73]      ___sys_sendmsg+0xee/0x170
[  201.340829][   T73]      __sys_sendmsg+0xcd/0x170
[  201.340829][   T73]      do_syscall_64+0xc6/0x1e0
[  201.340829][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  201.340829][   T73] 
[  211.423780][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  211.424405][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  211.424405][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  211.424405][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  211.424405][   T73]      fib6_nh_init+0xa22/0x1580
[  211.424405][   T73]      ip6_route_info_create+0xf18/0x17d0
[  211.424405][   T73]      ip6_route_add+0x1c/0x140
[  211.424405][   T73]      inet6_rtm_newroute+0x104/0x110
[  211.424405][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  211.424405][   T73]      netlink_rcv_skb+0x130/0x360
[  211.424405][   T73]      netlink_unicast+0x449/0x710
[  211.424405][   T73]      netlink_sendmsg+0x723/0xbe0
[  211.424405][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  211.424405][   T73]      ___sys_sendmsg+0xee/0x170
[  211.424405][   T73]      __sys_sendmsg+0xcd/0x170
[  211.424405][   T73]      do_syscall_64+0xc6/0x1e0
[  211.424405][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  211.424405][   T73] 
[  211.427577][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  211.427577][   T73]      dst_init+0x84/0x4a0
[  211.427577][   T73]      dst_alloc+0x97/0x150
[  211.427577][   T73]      ip6_dst_alloc+0x23/0x90
[  211.427577][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  211.427577][   T73]      ip6_pol_route+0x56f/0x840
[  211.427577][   T73]      fib6_rule_lookup+0x456/0x630
[  211.427577][   T73]      ip6_route_input+0x59c/0xa50
[  211.427577][   T73]      ipv6_rcv+0x397/0x810
[  211.427577][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  211.427577][   T73]      process_backlog+0x101/0x620
[  211.427577][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  211.427577][   T73]      net_rx_action+0x495/0xbe0
[  211.427577][   T73]      __do_softirq+0x1b5/0x7f6
[  211.427577][   T73] 
[  211.430404][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  211.430404][   T73]      netdev_get_by_index+0x5e/0x80
[  211.430404][   T73]      fib6_nh_init+0x3d8/0x1580
[  211.430404][   T73]      ip6_route_info_create+0xf18/0x17d0
[  211.430404][   T73]      ip6_route_add+0x1c/0x140
[  211.430404][   T73]      addrconf_prefix_route+0x2a6/0x430
[  211.430404][   T73]      inet6_addr_add+0x4f8/0xa40
[  211.430404][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  211.430404][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  211.430404][   T73]      netlink_rcv_skb+0x130/0x360
[  211.430404][   T73]      netlink_unicast+0x449/0x710
[  211.430404][   T73]      netlink_sendmsg+0x723/0xbe0
[  211.430404][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  211.430404][   T73]      ___sys_sendmsg+0xee/0x170
[  211.430404][   T73]      __sys_sendmsg+0xcd/0x170
[  211.430404][   T73]      do_syscall_64+0xc6/0x1e0
[  211.430404][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  211.430404][   T73] 
[  211.433807][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  211.433807][   T73]      netdev_get_by_index+0x5e/0x80
[  211.433807][   T73]      fib6_nh_init+0x3d8/0x1580
[  211.433807][   T73]      ip6_route_info_create+0xf18/0x17d0
[  211.433807][   T73]      addrconf_f6i_alloc+0x315/0x560
[  211.433807][   T73]      ipv6_add_addr+0x411/0x2000
[  211.433807][   T73]      inet6_addr_add+0x30e/0xa40
[  211.433807][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  211.433807][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  211.433807][   T73]      netlink_rcv_skb+0x130/0x360
[  211.433807][   T73]      netlink_unicast+0x449/0x710
[  211.433807][   T73]      netlink_sendmsg+0x723/0xbe0
[  211.433807][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  211.433807][   T73]      ___sys_sendmsg+0xee/0x170
[  211.433807][   T73]      __sys_sendmsg+0xcd/0x170
[  211.433807][   T73]      do_syscall_64+0xc6/0x1e0
[  211.433807][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  211.433807][   T73] 
[  211.437234][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  211.437234][   T73]      netdev_get_by_index+0x5e/0x80
[  211.437234][   T73]      fib6_nh_init+0x3d8/0x1580
[  211.437234][   T73]      ip6_route_info_create+0xf18/0x17d0
[  211.437234][   T73]      ip6_route_add+0x1c/0x140
[  211.437234][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  211.437234][   T73]      addrconf_add_dev+0xe2/0x170
[  211.437234][   T73]      inet6_addr_add+0x12f/0xa40
[  211.437234][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  211.437234][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  211.437234][   T73]      netlink_rcv_skb+0x130/0x360
[  211.437234][   T73]      netlink_unicast+0x449/0x710
[  211.437234][   T73]      netlink_sendmsg+0x723/0xbe0
[  211.437234][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  211.437234][   T73]      ___sys_sendmsg+0xee/0x170
[  211.437234][   T73]      __sys_sendmsg+0xcd/0x170
[  211.437234][   T73]      do_syscall_64+0xc6/0x1e0
[  211.437234][   T73] 
[  211.440594][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  211.440594][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  211.440594][   T73]      ipv6_find_idev+0x102/0x170
[  211.440594][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  211.440594][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  211.440594][   T73]      netlink_rcv_skb+0x130/0x360
[  211.440594][   T73]      netlink_unicast+0x449/0x710
[  211.440594][   T73]      netlink_sendmsg+0x723/0xbe0
[  211.440594][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  211.440594][   T73]      ___sys_sendmsg+0xee/0x170
[  211.440594][   T73]      __sys_sendmsg+0xcd/0x170
[  211.440594][   T73]      do_syscall_64+0xc6/0x1e0
[  211.440594][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  211.440594][   T73] 
[  211.443154][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  211.443154][   T73]      neigh_parms_alloc+0x1e5/0x510
[  211.443154][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  211.443154][   T73]      ipv6_find_idev+0x102/0x170
[  211.443154][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  211.443154][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  211.443154][   T73]      netlink_rcv_skb+0x130/0x360
[  211.443154][   T73]      netlink_unicast+0x449/0x710
[  211.443154][   T73]      netlink_sendmsg+0x723/0xbe0
[  211.443154][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  211.443154][   T73]      ___sys_sendmsg+0xee/0x170
[  211.443154][   T73]      __sys_sendmsg+0xcd/0x170
[  211.443154][   T73]      do_syscall_64+0xc6/0x1e0
[  211.443154][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  211.443154][   T73] 
[  211.445899][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  211.446346][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  211.446346][   T73]      netdev_get_by_index+0x5e/0x80
[  211.446346][   T73]      fib6_nh_init+0x3d8/0x1580
[  211.446346][   T73]      ip6_route_info_create+0xf18/0x17d0
[  211.446346][   T73]      addrconf_f6i_alloc+0x265/0x560
[  211.446346][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  211.446346][   T73]      addrconf_join_anycast+0x1c0/0x220
[  211.446346][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  211.446346][   T73]      addrconf_dad_completed+0x12b/0xe20
[  211.446346][   T73]      addrconf_dad_begin+0x310/0x670
[  211.446346][   T73]      addrconf_dad_work+0x10b/0xab0
[  211.446346][   T73]      process_one_work+0x84d/0x18a0
[  211.446346][   T73]      worker_thread+0x587/0xd30
[  211.446346][   T73]      kthread+0x28a/0x350
[  211.446346][   T73]      ret_from_fork+0x31/0x70
[  211.446346][   T73]      ret_from_fork_asm+0x1a/0x30
[  211.446346][   T73] 
[  211.449410][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  211.449410][   T73]      netdev_get_by_index+0x5e/0x80
[  211.449410][   T73]      fib6_nh_init+0x3d8/0x1580
[  211.449410][   T73]      ip6_route_info_create+0xf18/0x17d0
[  211.449410][   T73]      ip6_route_add+0x1c/0x140
[  211.449410][   T73]      addrconf_prefix_route+0x2a6/0x430
[  211.449410][   T73]      inet6_addr_add+0x4f8/0xa40
[  211.449410][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  211.449410][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  211.449410][   T73]      netlink_rcv_skb+0x130/0x360
[  211.449410][   T73]      netlink_unicast+0x449/0x710
[  211.449410][   T73]      netlink_sendmsg+0x723/0xbe0
[  211.449410][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  211.449410][   T73]      ___sys_sendmsg+0xee/0x170
[  211.449410][   T73]      __sys_sendmsg+0xcd/0x170
[  211.449410][   T73]      do_syscall_64+0xc6/0x1e0
[  211.449410][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  211.449410][   T73] 
[  211.452596][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  211.452596][   T73]      netdev_get_by_index+0x5e/0x80
[  211.452596][   T73]      fib6_nh_init+0x3d8/0x1580
[  211.452596][   T73]      ip6_route_info_create+0xf18/0x17d0
[  211.452596][   T73]      addrconf_f6i_alloc+0x315/0x560
[  211.452596][   T73]      ipv6_add_addr+0x411/0x2000
[  211.452596][   T73]      inet6_addr_add+0x30e/0xa40
[  211.452596][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  211.452596][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  211.452596][   T73]      netlink_rcv_skb+0x130/0x360
[  211.452596][   T73]      netlink_unicast+0x449/0x710
[  211.452596][   T73]      netlink_sendmsg+0x723/0xbe0
[  211.452596][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  211.452596][   T73]      ___sys_sendmsg+0xee/0x170
[  211.452596][   T73]      __sys_sendmsg+0xcd/0x170
[  211.452596][   T73]      do_syscall_64+0xc6/0x1e0
[  211.452596][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  211.452596][   T73] 
[  211.455806][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  211.455806][   T73]      netdev_get_by_index+0x5e/0x80
[  211.455806][   T73]      fib6_nh_init+0x3d8/0x1580
[  211.455806][   T73]      ip6_route_info_create+0xf18/0x17d0
[  211.455806][   T73]      ip6_route_add+0x1c/0x140
[  211.455806][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  211.455806][   T73]      addrconf_add_dev+0xe2/0x170
[  211.455806][   T73]      inet6_addr_add+0x12f/0xa40
[  211.455806][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  211.455806][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  211.455806][   T73]      netlink_rcv_skb+0x130/0x360
[  211.455806][   T73]      netlink_unicast+0x449/0x710
[  211.455806][   T73]      netlink_sendmsg+0x723/0xbe0
[  211.455806][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  211.455806][   T73]      ___sys_sendmsg+0xee/0x170
[  211.455806][   T73]      __sys_sendmsg+0xcd/0x170
[  211.455806][   T73]      do_syscall_64+0xc6/0x1e0
[  211.455806][   T73] 
[  211.458933][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  211.458933][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  211.458933][   T73]      ipv6_find_idev+0x102/0x170
[  211.458933][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  211.458933][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  211.458933][   T73]      netlink_rcv_skb+0x130/0x360
[  211.458933][   T73]      netlink_unicast+0x449/0x710
[  211.458933][   T73]      netlink_sendmsg+0x723/0xbe0
[  211.458933][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  211.458933][   T73]      ___sys_sendmsg+0xee/0x170
[  211.458933][   T73]      __sys_sendmsg+0xcd/0x170
[  211.458933][   T73]      do_syscall_64+0xc6/0x1e0
[  211.458933][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  211.458933][   T73] 
[  211.461420][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  211.461420][   T73]      neigh_parms_alloc+0x1e5/0x510
[  211.461420][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  211.461420][   T73]      ipv6_find_idev+0x102/0x170
[  211.461420][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  211.461420][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  211.461420][   T73]      netlink_rcv_skb+0x130/0x360
[  211.461420][   T73]      netlink_unicast+0x449/0x710
[  211.461420][   T73]      netlink_sendmsg+0x723/0xbe0
[  211.461420][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  211.461420][   T73]      ___sys_sendmsg+0xee/0x170
[  211.461420][   T73]      __sys_sendmsg+0xcd/0x170
[  211.461420][   T73]      do_syscall_64+0xc6/0x1e0
[  211.461420][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  211.461420][   T73] 
[  211.464272][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  211.464762][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  211.464762][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  211.464762][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  211.464762][   T73]      fib6_nh_init+0xa22/0x1580
[  211.464762][   T73]      ip6_route_info_create+0xf18/0x17d0
[  211.464762][   T73]      ip6_route_add+0x1c/0x140
[  211.464762][   T73]      inet6_rtm_newroute+0x104/0x110
[  211.464762][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  211.464762][   T73]      netlink_rcv_skb+0x130/0x360
[  211.464762][   T73]      netlink_unicast+0x449/0x710
[  211.464762][   T73]      netlink_sendmsg+0x723/0xbe0
[  211.464762][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  211.464762][   T73]      ___sys_sendmsg+0xee/0x170
[  211.464762][   T73]      __sys_sendmsg+0xcd/0x170
[  211.464762][   T73]      do_syscall_64+0xc6/0x1e0
[  211.464762][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  211.464762][   T73] 
[  211.468173][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  211.468173][   T73]      dst_init+0x84/0x4a0
[  211.468173][   T73]      dst_alloc+0x97/0x150
[  211.468173][   T73]      ip6_dst_alloc+0x23/0x90
[  211.468173][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  211.468173][   T73]      ip6_pol_route+0x56f/0x840
[  211.468173][   T73]      fib6_rule_lookup+0x456/0x630
[  211.468173][   T73]      ip6_route_input+0x59c/0xa50
[  211.468173][   T73]      ipv6_rcv+0x397/0x810
[  211.468173][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  211.468173][   T73]      process_backlog+0x101/0x620
[  211.468173][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  211.468173][   T73]      net_rx_action+0x495/0xbe0
[  211.468173][   T73]      __do_softirq+0x1b5/0x7f6
[  211.468173][   T73] 
[  211.471396][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  211.471396][   T73]      netdev_get_by_index+0x5e/0x80
[  211.471396][   T73]      fib6_nh_init+0x3d8/0x1580
[  211.471396][   T73]      ip6_route_info_create+0xf18/0x17d0
[  211.471396][   T73]      ip6_route_add+0x1c/0x140
[  211.471396][   T73]      addrconf_prefix_route+0x2a6/0x430
[  211.471396][   T73]      inet6_addr_add+0x4f8/0xa40
[  211.471396][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  211.471396][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  211.471396][   T73]      netlink_rcv_skb+0x130/0x360
[  211.471396][   T73]      netlink_unicast+0x449/0x710
[  211.471396][   T73]      netlink_sendmsg+0x723/0xbe0
[  211.471396][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  211.471396][   T73]      ___sys_sendmsg+0xee/0x170
[  211.471396][   T73]      __sys_sendmsg+0xcd/0x170
[  211.471396][   T73]      do_syscall_64+0xc6/0x1e0
[  211.471396][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  211.471396][   T73] 
[  211.475110][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  211.475110][   T73]      netdev_get_by_index+0x5e/0x80
[  211.475110][   T73]      fib6_nh_init+0x3d8/0x1580
[  211.475110][   T73]      ip6_route_info_create+0xf18/0x17d0
[  211.475110][   T73]      addrconf_f6i_alloc+0x315/0x560
[  211.475110][   T73]      ipv6_add_addr+0x411/0x2000
[  211.475110][   T73]      inet6_addr_add+0x30e/0xa40
[  211.475110][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  211.475110][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  211.475110][   T73]      netlink_rcv_skb+0x130/0x360
[  211.475110][   T73]      netlink_unicast+0x449/0x710
[  211.475110][   T73]      netlink_sendmsg+0x723/0xbe0
[  211.475110][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  211.475110][   T73]      ___sys_sendmsg+0xee/0x170
[  211.475110][   T73]      __sys_sendmsg+0xcd/0x170
[  211.475110][   T73]      do_syscall_64+0xc6/0x1e0
[  211.475110][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  211.475110][   T73] 
[  211.479598][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  211.479598][   T73]      netdev_get_by_index+0x5e/0x80
[  211.479598][   T73]      fib6_nh_init+0x3d8/0x1580
[  211.479598][   T73]      ip6_route_info_create+0xf18/0x17d0
[  211.479598][   T73]      ip6_route_add+0x1c/0x140
[  211.479598][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  211.479598][   T73]      addrconf_add_dev+0xe2/0x170
[  211.479598][   T73]      inet6_addr_add+0x12f/0xa40
[  211.479598][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  211.479598][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  211.479598][   T73]      netlink_rcv_skb+0x130/0x360
[  211.479598][   T73]      netlink_unicast+0x449/0x710
[  211.479598][   T73]      netlink_sendmsg+0x723/0xbe0
[  211.479598][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  211.479598][   T73]      ___sys_sendmsg+0xee/0x170
[  211.479598][   T73]      __sys_sendmsg+0xcd/0x170
[  211.479598][   T73]      do_syscall_64+0xc6/0x1e0
[  211.479598][   T73] 
[  211.483797][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  211.483797][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  211.483797][   T73]      ipv6_find_idev+0x102/0x170
[  211.483797][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  211.483797][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  211.483797][   T73]      netlink_rcv_skb+0x130/0x360
[  211.483797][   T73]      netlink_unicast+0x449/0x710
[  211.483797][   T73]      netlink_sendmsg+0x723/0xbe0
[  211.483797][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  211.483797][   T73]      ___sys_sendmsg+0xee/0x170
[  211.483797][   T73]      __sys_sendmsg+0xcd/0x170
[  211.483797][   T73]      do_syscall_64+0xc6/0x1e0
[  211.483797][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  211.483797][   T73] 
[  211.486597][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  211.486597][   T73]      neigh_parms_alloc+0x1e5/0x510
[  211.486597][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  211.486597][   T73]      ipv6_find_idev+0x102/0x170
[  211.486597][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  211.486597][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  211.486597][   T73]      netlink_rcv_skb+0x130/0x360
[  211.486597][   T73]      netlink_unicast+0x449/0x710
[  211.486597][   T73]      netlink_sendmsg+0x723/0xbe0
[  211.486597][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  211.486597][   T73]      ___sys_sendmsg+0xee/0x170
[  211.486597][   T73]      __sys_sendmsg+0xcd/0x170
[  211.486597][   T73]      do_syscall_64+0xc6/0x1e0
[  211.486597][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  211.486597][   T73] 
[  211.489672][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  211.490222][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  211.490222][   T73]      netdev_get_by_index+0x5e/0x80
[  211.490222][   T73]      fib6_nh_init+0x3d8/0x1580
[  211.490222][   T73]      ip6_route_info_create+0xf18/0x17d0
[  211.490222][   T73]      addrconf_f6i_alloc+0x265/0x560
[  211.490222][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  211.490222][   T73]      addrconf_join_anycast+0x1c0/0x220
[  211.490222][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  211.490222][   T73]      addrconf_dad_completed+0x12b/0xe20
[  211.490222][   T73]      addrconf_dad_begin+0x310/0x670
[  211.490222][   T73]      addrconf_dad_work+0x10b/0xab0
[  211.490222][   T73]      process_one_work+0x84d/0x18a0
[  211.490222][   T73]      worker_thread+0x587/0xd30
[  211.490222][   T73]      kthread+0x28a/0x350
[  211.490222][   T73]      ret_from_fork+0x31/0x70
[  211.490222][   T73]      ret_from_fork_asm+0x1a/0x30
[  211.490222][   T73] 
[  211.493593][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  211.493593][   T73]      netdev_get_by_index+0x5e/0x80
[  211.493593][   T73]      fib6_nh_init+0x3d8/0x1580
[  211.493593][   T73]      ip6_route_info_create+0xf18/0x17d0
[  211.493593][   T73]      ip6_route_add+0x1c/0x140
[  211.493593][   T73]      addrconf_prefix_route+0x2a6/0x430
[  211.493593][   T73]      inet6_addr_add+0x4f8/0xa40
[  211.493593][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  211.493593][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  211.493593][   T73]      netlink_rcv_skb+0x130/0x360
[  211.493593][   T73]      netlink_unicast+0x449/0x710
[  211.493593][   T73]      netlink_sendmsg+0x723/0xbe0
[  211.493593][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  211.493593][   T73]      ___sys_sendmsg+0xee/0x170
[  211.493593][   T73]      __sys_sendmsg+0xcd/0x170
[  211.493593][   T73]      do_syscall_64+0xc6/0x1e0
[  211.493593][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  211.493593][   T73] 
[  211.497337][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  211.497337][   T73]      netdev_get_by_index+0x5e/0x80
[  211.497337][   T73]      fib6_nh_init+0x3d8/0x1580
[  211.497337][   T73]      ip6_route_info_create+0xf18/0x17d0
[  211.497337][   T73]      addrconf_f6i_alloc+0x315/0x560
[  211.497337][   T73]      ipv6_add_addr+0x411/0x2000
[  211.497337][   T73]      inet6_addr_add+0x30e/0xa40
[  211.497337][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  211.497337][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  211.497337][   T73]      netlink_rcv_skb+0x130/0x360
[  211.497337][   T73]      netlink_unicast+0x449/0x710
[  211.497337][   T73]      netlink_sendmsg+0x723/0xbe0
[  211.497337][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  211.497337][   T73]      ___sys_sendmsg+0xee/0x170
[  211.497337][   T73]      __sys_sendmsg+0xcd/0x170
[  211.497337][   T73]      do_syscall_64+0xc6/0x1e0
[  211.497337][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  211.497337][   T73] 
[  211.500977][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  211.500977][   T73]      netdev_get_by_index+0x5e/0x80
[  211.500977][   T73]      fib6_nh_init+0x3d8/0x1580
[  211.500977][   T73]      ip6_route_info_create+0xf18/0x17d0
[  211.500977][   T73]      ip6_route_add+0x1c/0x140
[  211.500977][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  211.500977][   T73]      addrconf_add_dev+0xe2/0x170
[  211.500977][   T73]      inet6_addr_add+0x12f/0xa40
[  211.500977][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  211.500977][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  211.500977][   T73]      netlink_rcv_skb+0x130/0x360
[  211.500977][   T73]      netlink_unicast+0x449/0x710
[  211.500977][   T73]      netlink_sendmsg+0x723/0xbe0
[  211.500977][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  211.500977][   T73]      ___sys_sendmsg+0xee/0x170
[  211.500977][   T73]      __sys_sendmsg+0xcd/0x170
[  211.500977][   T73]      do_syscall_64+0xc6/0x1e0
[  211.500977][   T73] 
[  211.504589][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  211.504589][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  211.504589][   T73]      ipv6_find_idev+0x102/0x170
[  211.504589][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  211.504589][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  211.504589][   T73]      netlink_rcv_skb+0x130/0x360
[  211.504589][   T73]      netlink_unicast+0x449/0x710
[  211.504589][   T73]      netlink_sendmsg+0x723/0xbe0
[  211.504589][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  211.504589][   T73]      ___sys_sendmsg+0xee/0x170
[  211.504589][   T73]      __sys_sendmsg+0xcd/0x170
[  211.504589][   T73]      do_syscall_64+0xc6/0x1e0
[  211.504589][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  211.504589][   T73] 
[  211.507545][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  211.507545][   T73]      neigh_parms_alloc+0x1e5/0x510
[  211.507545][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  211.507545][   T73]      ipv6_find_idev+0x102/0x170
[  211.507545][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  211.507545][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  211.507545][   T73]      netlink_rcv_skb+0x130/0x360
[  211.507545][   T73]      netlink_unicast+0x449/0x710
[  211.507545][   T73]      netlink_sendmsg+0x723/0xbe0
[  211.507545][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  211.507545][   T73]      ___sys_sendmsg+0xee/0x170
[  211.507545][   T73]      __sys_sendmsg+0xcd/0x170
[  211.507545][   T73]      do_syscall_64+0xc6/0x1e0
[  211.507545][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  211.507545][   T73] 
[  221.639759][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  221.640347][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  221.640347][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  221.640347][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  221.640347][   T73]      fib6_nh_init+0xa22/0x1580
[  221.640347][   T73]      ip6_route_info_create+0xf18/0x17d0
[  221.640347][   T73]      ip6_route_add+0x1c/0x140
[  221.640347][   T73]      inet6_rtm_newroute+0x104/0x110
[  221.640347][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  221.640347][   T73]      netlink_rcv_skb+0x130/0x360
[  221.640347][   T73]      netlink_unicast+0x449/0x710
[  221.640347][   T73]      netlink_sendmsg+0x723/0xbe0
[  221.640347][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  221.640347][   T73]      ___sys_sendmsg+0xee/0x170
[  221.640347][   T73]      __sys_sendmsg+0xcd/0x170
[  221.640347][   T73]      do_syscall_64+0xc6/0x1e0
[  221.640347][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  221.640347][   T73] 
[  221.643436][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  221.643436][   T73]      dst_init+0x84/0x4a0
[  221.643436][   T73]      dst_alloc+0x97/0x150
[  221.643436][   T73]      ip6_dst_alloc+0x23/0x90
[  221.643436][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  221.643436][   T73]      ip6_pol_route+0x56f/0x840
[  221.643436][   T73]      fib6_rule_lookup+0x456/0x630
[  221.643436][   T73]      ip6_route_input+0x59c/0xa50
[  221.643436][   T73]      ipv6_rcv+0x397/0x810
[  221.643436][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  221.643436][   T73]      process_backlog+0x101/0x620
[  221.643436][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  221.643436][   T73]      net_rx_action+0x495/0xbe0
[  221.643436][   T73]      __do_softirq+0x1b5/0x7f6
[  221.643436][   T73] 
[  221.646147][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  221.646147][   T73]      netdev_get_by_index+0x5e/0x80
[  221.646147][   T73]      fib6_nh_init+0x3d8/0x1580
[  221.646147][   T73]      ip6_route_info_create+0xf18/0x17d0
[  221.646147][   T73]      ip6_route_add+0x1c/0x140
[  221.646147][   T73]      addrconf_prefix_route+0x2a6/0x430
[  221.646147][   T73]      inet6_addr_add+0x4f8/0xa40
[  221.646147][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  221.646147][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  221.646147][   T73]      netlink_rcv_skb+0x130/0x360
[  221.646147][   T73]      netlink_unicast+0x449/0x710
[  221.646147][   T73]      netlink_sendmsg+0x723/0xbe0
[  221.646147][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  221.646147][   T73]      ___sys_sendmsg+0xee/0x170
[  221.646147][   T73]      __sys_sendmsg+0xcd/0x170
[  221.646147][   T73]      do_syscall_64+0xc6/0x1e0
[  221.646147][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  221.646147][   T73] 
[  221.649365][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  221.649365][   T73]      netdev_get_by_index+0x5e/0x80
[  221.649365][   T73]      fib6_nh_init+0x3d8/0x1580
[  221.649365][   T73]      ip6_route_info_create+0xf18/0x17d0
[  221.649365][   T73]      addrconf_f6i_alloc+0x315/0x560
[  221.649365][   T73]      ipv6_add_addr+0x411/0x2000
[  221.649365][   T73]      inet6_addr_add+0x30e/0xa40
[  221.649365][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  221.649365][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  221.649365][   T73]      netlink_rcv_skb+0x130/0x360
[  221.649365][   T73]      netlink_unicast+0x449/0x710
[  221.649365][   T73]      netlink_sendmsg+0x723/0xbe0
[  221.649365][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  221.649365][   T73]      ___sys_sendmsg+0xee/0x170
[  221.649365][   T73]      __sys_sendmsg+0xcd/0x170
[  221.649365][   T73]      do_syscall_64+0xc6/0x1e0
[  221.649365][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  221.649365][   T73] 
[  221.652586][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  221.652586][   T73]      netdev_get_by_index+0x5e/0x80
[  221.652586][   T73]      fib6_nh_init+0x3d8/0x1580
[  221.652586][   T73]      ip6_route_info_create+0xf18/0x17d0
[  221.652586][   T73]      ip6_route_add+0x1c/0x140
[  221.652586][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  221.652586][   T73]      addrconf_add_dev+0xe2/0x170
[  221.652586][   T73]      inet6_addr_add+0x12f/0xa40
[  221.652586][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  221.652586][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  221.652586][   T73]      netlink_rcv_skb+0x130/0x360
[  221.652586][   T73]      netlink_unicast+0x449/0x710
[  221.652586][   T73]      netlink_sendmsg+0x723/0xbe0
[  221.652586][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  221.652586][   T73]      ___sys_sendmsg+0xee/0x170
[  221.652586][   T73]      __sys_sendmsg+0xcd/0x170
[  221.652586][   T73]      do_syscall_64+0xc6/0x1e0
[  221.652586][   T73] 
[  221.655818][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  221.655818][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  221.655818][   T73]      ipv6_find_idev+0x102/0x170
[  221.655818][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  221.655818][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  221.655818][   T73]      netlink_rcv_skb+0x130/0x360
[  221.655818][   T73]      netlink_unicast+0x449/0x710
[  221.655818][   T73]      netlink_sendmsg+0x723/0xbe0
[  221.655818][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  221.655818][   T73]      ___sys_sendmsg+0xee/0x170
[  221.655818][   T73]      __sys_sendmsg+0xcd/0x170
[  221.655818][   T73]      do_syscall_64+0xc6/0x1e0
[  221.655818][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  221.655818][   T73] 
[  221.658357][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  221.658357][   T73]      neigh_parms_alloc+0x1e5/0x510
[  221.658357][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  221.658357][   T73]      ipv6_find_idev+0x102/0x170
[  221.658357][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  221.658357][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  221.658357][   T73]      netlink_rcv_skb+0x130/0x360
[  221.658357][   T73]      netlink_unicast+0x449/0x710
[  221.658357][   T73]      netlink_sendmsg+0x723/0xbe0
[  221.658357][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  221.658357][   T73]      ___sys_sendmsg+0xee/0x170
[  221.658357][   T73]      __sys_sendmsg+0xcd/0x170
[  221.658357][   T73]      do_syscall_64+0xc6/0x1e0
[  221.658357][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  221.658357][   T73] 
[  221.661210][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  221.661662][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  221.661662][   T73]      netdev_get_by_index+0x5e/0x80
[  221.661662][   T73]      fib6_nh_init+0x3d8/0x1580
[  221.661662][   T73]      ip6_route_info_create+0xf18/0x17d0
[  221.661662][   T73]      addrconf_f6i_alloc+0x265/0x560
[  221.661662][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  221.661662][   T73]      addrconf_join_anycast+0x1c0/0x220
[  221.661662][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  221.661662][   T73]      addrconf_dad_completed+0x12b/0xe20
[  221.661662][   T73]      addrconf_dad_begin+0x310/0x670
[  221.661662][   T73]      addrconf_dad_work+0x10b/0xab0
[  221.661662][   T73]      process_one_work+0x84d/0x18a0
[  221.661662][   T73]      worker_thread+0x587/0xd30
[  221.661662][   T73]      kthread+0x28a/0x350
[  221.661662][   T73]      ret_from_fork+0x31/0x70
[  221.661662][   T73]      ret_from_fork_asm+0x1a/0x30
[  221.661662][   T73] 
[  221.664874][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  221.664874][   T73]      netdev_get_by_index+0x5e/0x80
[  221.664874][   T73]      fib6_nh_init+0x3d8/0x1580
[  221.664874][   T73]      ip6_route_info_create+0xf18/0x17d0
[  221.664874][   T73]      ip6_route_add+0x1c/0x140
[  221.664874][   T73]      addrconf_prefix_route+0x2a6/0x430
[  221.664874][   T73]      inet6_addr_add+0x4f8/0xa40
[  221.664874][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  221.664874][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  221.664874][   T73]      netlink_rcv_skb+0x130/0x360
[  221.664874][   T73]      netlink_unicast+0x449/0x710
[  221.664874][   T73]      netlink_sendmsg+0x723/0xbe0
[  221.664874][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  221.664874][   T73]      ___sys_sendmsg+0xee/0x170
[  221.664874][   T73]      __sys_sendmsg+0xcd/0x170
[  221.664874][   T73]      do_syscall_64+0xc6/0x1e0
[  221.664874][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  221.664874][   T73] 
[  221.668339][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  221.668339][   T73]      netdev_get_by_index+0x5e/0x80
[  221.668339][   T73]      fib6_nh_init+0x3d8/0x1580
[  221.668339][   T73]      ip6_route_info_create+0xf18/0x17d0
[  221.668339][   T73]      addrconf_f6i_alloc+0x315/0x560
[  221.668339][   T73]      ipv6_add_addr+0x411/0x2000
[  221.668339][   T73]      inet6_addr_add+0x30e/0xa40
[  221.668339][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  221.668339][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  221.668339][   T73]      netlink_rcv_skb+0x130/0x360
[  221.668339][   T73]      netlink_unicast+0x449/0x710
[  221.668339][   T73]      netlink_sendmsg+0x723/0xbe0
[  221.668339][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  221.668339][   T73]      ___sys_sendmsg+0xee/0x170
[  221.668339][   T73]      __sys_sendmsg+0xcd/0x170
[  221.668339][   T73]      do_syscall_64+0xc6/0x1e0
[  221.668339][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  221.668339][   T73] 
[  221.671830][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  221.671830][   T73]      netdev_get_by_index+0x5e/0x80
[  221.671830][   T73]      fib6_nh_init+0x3d8/0x1580
[  221.671830][   T73]      ip6_route_info_create+0xf18/0x17d0
[  221.671830][   T73]      ip6_route_add+0x1c/0x140
[  221.671830][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  221.671830][   T73]      addrconf_add_dev+0xe2/0x170
[  221.671830][   T73]      inet6_addr_add+0x12f/0xa40
[  221.671830][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  221.671830][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  221.671830][   T73]      netlink_rcv_skb+0x130/0x360
[  221.671830][   T73]      netlink_unicast+0x449/0x710
[  221.671830][   T73]      netlink_sendmsg+0x723/0xbe0
[  221.671830][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  221.671830][   T73]      ___sys_sendmsg+0xee/0x170
[  221.671830][   T73]      __sys_sendmsg+0xcd/0x170
[  221.671830][   T73]      do_syscall_64+0xc6/0x1e0
[  221.671830][   T73] 
[  221.675021][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  221.675021][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  221.675021][   T73]      ipv6_find_idev+0x102/0x170
[  221.675021][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  221.675021][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  221.675021][   T73]      netlink_rcv_skb+0x130/0x360
[  221.675021][   T73]      netlink_unicast+0x449/0x710
[  221.675021][   T73]      netlink_sendmsg+0x723/0xbe0
[  221.675021][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  221.675021][   T73]      ___sys_sendmsg+0xee/0x170
[  221.675021][   T73]      __sys_sendmsg+0xcd/0x170
[  221.675021][   T73]      do_syscall_64+0xc6/0x1e0
[  221.675021][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  221.675021][   T73] 
[  221.677528][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  221.677528][   T73]      neigh_parms_alloc+0x1e5/0x510
[  221.677528][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  221.677528][   T73]      ipv6_find_idev+0x102/0x170
[  221.677528][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  221.677528][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  221.677528][   T73]      netlink_rcv_skb+0x130/0x360
[  221.677528][   T73]      netlink_unicast+0x449/0x710
[  221.677528][   T73]      netlink_sendmsg+0x723/0xbe0
[  221.677528][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  221.677528][   T73]      ___sys_sendmsg+0xee/0x170
[  221.677528][   T73]      __sys_sendmsg+0xcd/0x170
[  221.677528][   T73]      do_syscall_64+0xc6/0x1e0
[  221.677528][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  221.677528][   T73] 
[  221.680297][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  221.680752][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  221.680752][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  221.680752][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  221.680752][   T73]      fib6_nh_init+0xa22/0x1580
[  221.680752][   T73]      ip6_route_info_create+0xf18/0x17d0
[  221.680752][   T73]      ip6_route_add+0x1c/0x140
[  221.680752][   T73]      inet6_rtm_newroute+0x104/0x110
[  221.680752][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  221.680752][   T73]      netlink_rcv_skb+0x130/0x360
[  221.680752][   T73]      netlink_unicast+0x449/0x710
[  221.680752][   T73]      netlink_sendmsg+0x723/0xbe0
[  221.680752][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  221.680752][   T73]      ___sys_sendmsg+0xee/0x170
[  221.680752][   T73]      __sys_sendmsg+0xcd/0x170
[  221.680752][   T73]      do_syscall_64+0xc6/0x1e0
[  221.680752][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  221.680752][   T73] 
[  221.684016][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  221.684016][   T73]      dst_init+0x84/0x4a0
[  221.684016][   T73]      dst_alloc+0x97/0x150
[  221.684016][   T73]      ip6_dst_alloc+0x23/0x90
[  221.684016][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  221.684016][   T73]      ip6_pol_route+0x56f/0x840
[  221.684016][   T73]      fib6_rule_lookup+0x456/0x630
[  221.684016][   T73]      ip6_route_input+0x59c/0xa50
[  221.684016][   T73]      ipv6_rcv+0x397/0x810
[  221.684016][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  221.684016][   T73]      process_backlog+0x101/0x620
[  221.684016][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  221.684016][   T73]      net_rx_action+0x495/0xbe0
[  221.684016][   T73]      __do_softirq+0x1b5/0x7f6
[  221.684016][   T73] 
[  221.687237][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  221.687237][   T73]      netdev_get_by_index+0x5e/0x80
[  221.687237][   T73]      fib6_nh_init+0x3d8/0x1580
[  221.687237][   T73]      ip6_route_info_create+0xf18/0x17d0
[  221.687237][   T73]      ip6_route_add+0x1c/0x140
[  221.687237][   T73]      addrconf_prefix_route+0x2a6/0x430
[  221.687237][   T73]      inet6_addr_add+0x4f8/0xa40
[  221.687237][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  221.687237][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  221.687237][   T73]      netlink_rcv_skb+0x130/0x360
[  221.687237][   T73]      netlink_unicast+0x449/0x710
[  221.687237][   T73]      netlink_sendmsg+0x723/0xbe0
[  221.687237][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  221.687237][   T73]      ___sys_sendmsg+0xee/0x170
[  221.687237][   T73]      __sys_sendmsg+0xcd/0x170
[  221.687237][   T73]      do_syscall_64+0xc6/0x1e0
[  221.687237][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  221.687237][   T73] 
[  221.690822][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  221.690822][   T73]      netdev_get_by_index+0x5e/0x80
[  221.690822][   T73]      fib6_nh_init+0x3d8/0x1580
[  221.690822][   T73]      ip6_route_info_create+0xf18/0x17d0
[  221.690822][   T73]      addrconf_f6i_alloc+0x315/0x560
[  221.690822][   T73]      ipv6_add_addr+0x411/0x2000
[  221.690822][   T73]      inet6_addr_add+0x30e/0xa40
[  221.690822][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  221.690822][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  221.690822][   T73]      netlink_rcv_skb+0x130/0x360
[  221.690822][   T73]      netlink_unicast+0x449/0x710
[  221.690822][   T73]      netlink_sendmsg+0x723/0xbe0
[  221.690822][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  221.690822][   T73]      ___sys_sendmsg+0xee/0x170
[  221.690822][   T73]      __sys_sendmsg+0xcd/0x170
[  221.690822][   T73]      do_syscall_64+0xc6/0x1e0
[  221.690822][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  221.690822][   T73] 
[  221.694498][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  221.694498][   T73]      netdev_get_by_index+0x5e/0x80
[  221.694498][   T73]      fib6_nh_init+0x3d8/0x1580
[  221.694498][   T73]      ip6_route_info_create+0xf18/0x17d0
[  221.694498][   T73]      ip6_route_add+0x1c/0x140
[  221.694498][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  221.694498][   T73]      addrconf_add_dev+0xe2/0x170
[  221.694498][   T73]      inet6_addr_add+0x12f/0xa40
[  221.694498][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  221.694498][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  221.694498][   T73]      netlink_rcv_skb+0x130/0x360
[  221.694498][   T73]      netlink_unicast+0x449/0x710
[  221.694498][   T73]      netlink_sendmsg+0x723/0xbe0
[  221.694498][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  221.694498][   T73]      ___sys_sendmsg+0xee/0x170
[  221.694498][   T73]      __sys_sendmsg+0xcd/0x170
[  221.694498][   T73]      do_syscall_64+0xc6/0x1e0
[  221.694498][   T73] 
[  221.698038][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  221.698038][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  221.698038][   T73]      ipv6_find_idev+0x102/0x170
[  221.698038][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  221.698038][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  221.698038][   T73]      netlink_rcv_skb+0x130/0x360
[  221.698038][   T73]      netlink_unicast+0x449/0x710
[  221.698038][   T73]      netlink_sendmsg+0x723/0xbe0
[  221.698038][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  221.698038][   T73]      ___sys_sendmsg+0xee/0x170
[  221.698038][   T73]      __sys_sendmsg+0xcd/0x170
[  221.698038][   T73]      do_syscall_64+0xc6/0x1e0
[  221.698038][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  221.698038][   T73] 
[  221.700983][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  221.700983][   T73]      neigh_parms_alloc+0x1e5/0x510
[  221.700983][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  221.700983][   T73]      ipv6_find_idev+0x102/0x170
[  221.700983][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  221.700983][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  221.700983][   T73]      netlink_rcv_skb+0x130/0x360
[  221.700983][   T73]      netlink_unicast+0x449/0x710
[  221.700983][   T73]      netlink_sendmsg+0x723/0xbe0
[  221.700983][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  221.700983][   T73]      ___sys_sendmsg+0xee/0x170
[  221.700983][   T73]      __sys_sendmsg+0xcd/0x170
[  221.700983][   T73]      do_syscall_64+0xc6/0x1e0
[  221.700983][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  221.700983][   T73] 
[  221.704204][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  221.705637][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  221.705637][   T73]      netdev_get_by_index+0x5e/0x80
[  221.705637][   T73]      fib6_nh_init+0x3d8/0x1580
[  221.705637][   T73]      ip6_route_info_create+0xf18/0x17d0
[  221.705637][   T73]      addrconf_f6i_alloc+0x265/0x560
[  221.705637][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  221.705637][   T73]      addrconf_join_anycast+0x1c0/0x220
[  221.705637][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  221.705637][   T73]      addrconf_dad_completed+0x12b/0xe20
[  221.705637][   T73]      addrconf_dad_begin+0x310/0x670
[  221.705637][   T73]      addrconf_dad_work+0x10b/0xab0
[  221.705637][   T73]      process_one_work+0x84d/0x18a0
[  221.705637][   T73]      worker_thread+0x587/0xd30
[  221.705637][   T73]      kthread+0x28a/0x350
[  221.705637][   T73]      ret_from_fork+0x31/0x70
[  221.705637][   T73]      ret_from_fork_asm+0x1a/0x30
[  221.705637][   T73] 
[  221.708800][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  221.708800][   T73]      netdev_get_by_index+0x5e/0x80
[  221.708800][   T73]      fib6_nh_init+0x3d8/0x1580
[  221.708800][   T73]      ip6_route_info_create+0xf18/0x17d0
[  221.708800][   T73]      ip6_route_add+0x1c/0x140
[  221.708800][   T73]      addrconf_prefix_route+0x2a6/0x430
[  221.708800][   T73]      inet6_addr_add+0x4f8/0xa40
[  221.708800][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  221.708800][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  221.708800][   T73]      netlink_rcv_skb+0x130/0x360
[  221.708800][   T73]      netlink_unicast+0x449/0x710
[  221.708800][   T73]      netlink_sendmsg+0x723/0xbe0
[  221.708800][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  221.708800][   T73]      ___sys_sendmsg+0xee/0x170
[  221.708800][   T73]      __sys_sendmsg+0xcd/0x170
[  221.708800][   T73]      do_syscall_64+0xc6/0x1e0
[  221.708800][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  221.708800][   T73] 
[  221.712111][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  221.712111][   T73]      netdev_get_by_index+0x5e/0x80
[  221.712111][   T73]      fib6_nh_init+0x3d8/0x1580
[  221.712111][   T73]      ip6_route_info_create+0xf18/0x17d0
[  221.712111][   T73]      addrconf_f6i_alloc+0x315/0x560
[  221.712111][   T73]      ipv6_add_addr+0x411/0x2000
[  221.712111][   T73]      inet6_addr_add+0x30e/0xa40
[  221.712111][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  221.712111][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  221.712111][   T73]      netlink_rcv_skb+0x130/0x360
[  221.712111][   T73]      netlink_unicast+0x449/0x710
[  221.712111][   T73]      netlink_sendmsg+0x723/0xbe0
[  221.712111][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  221.712111][   T73]      ___sys_sendmsg+0xee/0x170
[  221.712111][   T73]      __sys_sendmsg+0xcd/0x170
[  221.712111][   T73]      do_syscall_64+0xc6/0x1e0
[  221.712111][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  221.712111][   T73] 
[  221.715771][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  221.715771][   T73]      netdev_get_by_index+0x5e/0x80
[  221.715771][   T73]      fib6_nh_init+0x3d8/0x1580
[  221.715771][   T73]      ip6_route_info_create+0xf18/0x17d0
[  221.715771][   T73]      ip6_route_add+0x1c/0x140
[  221.715771][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  221.715771][   T73]      addrconf_add_dev+0xe2/0x170
[  221.715771][   T73]      inet6_addr_add+0x12f/0xa40
[  221.715771][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  221.715771][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  221.715771][   T73]      netlink_rcv_skb+0x130/0x360
[  221.715771][   T73]      netlink_unicast+0x449/0x710
[  221.715771][   T73]      netlink_sendmsg+0x723/0xbe0
[  221.715771][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  221.715771][   T73]      ___sys_sendmsg+0xee/0x170
[  221.715771][   T73]      __sys_sendmsg+0xcd/0x170
[  221.715771][   T73]      do_syscall_64+0xc6/0x1e0
[  221.715771][   T73] 
[  221.719373][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  221.719373][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  221.719373][   T73]      ipv6_find_idev+0x102/0x170
[  221.719373][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  221.719373][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  221.719373][   T73]      netlink_rcv_skb+0x130/0x360
[  221.719373][   T73]      netlink_unicast+0x449/0x710
[  221.719373][   T73]      netlink_sendmsg+0x723/0xbe0
[  221.719373][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  221.719373][   T73]      ___sys_sendmsg+0xee/0x170
[  221.719373][   T73]      __sys_sendmsg+0xcd/0x170
[  221.719373][   T73]      do_syscall_64+0xc6/0x1e0
[  221.719373][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  221.719373][   T73] 
[  221.722371][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  221.722371][   T73]      neigh_parms_alloc+0x1e5/0x510
[  221.722371][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  221.722371][   T73]      ipv6_find_idev+0x102/0x170
[  221.722371][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  221.722371][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  221.722371][   T73]      netlink_rcv_skb+0x130/0x360
[  221.722371][   T73]      netlink_unicast+0x449/0x710
[  221.722371][   T73]      netlink_sendmsg+0x723/0xbe0
[  221.722371][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  221.722371][   T73]      ___sys_sendmsg+0xee/0x170
[  221.722371][   T73]      __sys_sendmsg+0xcd/0x170
[  221.722371][   T73]      do_syscall_64+0xc6/0x1e0
[  221.722371][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  221.722371][   T73] 
[  231.783777][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  231.784287][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  231.784287][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  231.784287][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  231.784287][   T73]      fib6_nh_init+0xa22/0x1580
[  231.784287][   T73]      ip6_route_info_create+0xf18/0x17d0
[  231.784287][   T73]      ip6_route_add+0x1c/0x140
[  231.784287][   T73]      inet6_rtm_newroute+0x104/0x110
[  231.784287][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  231.784287][   T73]      netlink_rcv_skb+0x130/0x360
[  231.784287][   T73]      netlink_unicast+0x449/0x710
[  231.784287][   T73]      netlink_sendmsg+0x723/0xbe0
[  231.784287][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  231.784287][   T73]      ___sys_sendmsg+0xee/0x170
[  231.784287][   T73]      __sys_sendmsg+0xcd/0x170
[  231.784287][   T73]      do_syscall_64+0xc6/0x1e0
[  231.784287][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  231.784287][   T73] 
[  231.786247][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  231.786247][   T73]      dst_init+0x84/0x4a0
[  231.786247][   T73]      dst_alloc+0x97/0x150
[  231.786247][   T73]      ip6_dst_alloc+0x23/0x90
[  231.786247][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  231.786247][   T73]      ip6_pol_route+0x56f/0x840
[  231.786247][   T73]      fib6_rule_lookup+0x456/0x630
[  231.786247][   T73]      ip6_route_input+0x59c/0xa50
[  231.786247][   T73]      ipv6_rcv+0x397/0x810
[  231.786247][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  231.786247][   T73]      process_backlog+0x101/0x620
[  231.786247][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  231.786247][   T73]      net_rx_action+0x495/0xbe0
[  231.786247][   T73]      __do_softirq+0x1b5/0x7f6
[  231.786247][   T73] 
[  231.787918][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  231.787918][   T73]      netdev_get_by_index+0x5e/0x80
[  231.787918][   T73]      fib6_nh_init+0x3d8/0x1580
[  231.787918][   T73]      ip6_route_info_create+0xf18/0x17d0
[  231.787918][   T73]      ip6_route_add+0x1c/0x140
[  231.787918][   T73]      addrconf_prefix_route+0x2a6/0x430
[  231.787918][   T73]      inet6_addr_add+0x4f8/0xa40
[  231.787918][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  231.787918][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  231.787918][   T73]      netlink_rcv_skb+0x130/0x360
[  231.787918][   T73]      netlink_unicast+0x449/0x710
[  231.787918][   T73]      netlink_sendmsg+0x723/0xbe0
[  231.787918][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  231.787918][   T73]      ___sys_sendmsg+0xee/0x170
[  231.787918][   T73]      __sys_sendmsg+0xcd/0x170
[  231.787918][   T73]      do_syscall_64+0xc6/0x1e0
[  231.787918][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  231.787918][   T73] 
[  231.789978][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  231.789978][   T73]      netdev_get_by_index+0x5e/0x80
[  231.789978][   T73]      fib6_nh_init+0x3d8/0x1580
[  231.789978][   T73]      ip6_route_info_create+0xf18/0x17d0
[  231.789978][   T73]      addrconf_f6i_alloc+0x315/0x560
[  231.789978][   T73]      ipv6_add_addr+0x411/0x2000
[  231.789978][   T73]      inet6_addr_add+0x30e/0xa40
[  231.789978][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  231.789978][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  231.789978][   T73]      netlink_rcv_skb+0x130/0x360
[  231.789978][   T73]      netlink_unicast+0x449/0x710
[  231.789978][   T73]      netlink_sendmsg+0x723/0xbe0
[  231.789978][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  231.789978][   T73]      ___sys_sendmsg+0xee/0x170
[  231.789978][   T73]      __sys_sendmsg+0xcd/0x170
[  231.789978][   T73]      do_syscall_64+0xc6/0x1e0
[  231.789978][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  231.789978][   T73] 
[  231.791999][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  231.791999][   T73]      netdev_get_by_index+0x5e/0x80
[  231.791999][   T73]      fib6_nh_init+0x3d8/0x1580
[  231.791999][   T73]      ip6_route_info_create+0xf18/0x17d0
[  231.791999][   T73]      ip6_route_add+0x1c/0x140
[  231.791999][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  231.791999][   T73]      addrconf_add_dev+0xe2/0x170
[  231.791999][   T73]      inet6_addr_add+0x12f/0xa40
[  231.791999][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  231.791999][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  231.791999][   T73]      netlink_rcv_skb+0x130/0x360
[  231.791999][   T73]      netlink_unicast+0x449/0x710
[  231.791999][   T73]      netlink_sendmsg+0x723/0xbe0
[  231.791999][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  231.791999][   T73]      ___sys_sendmsg+0xee/0x170
[  231.791999][   T73]      __sys_sendmsg+0xcd/0x170
[  231.791999][   T73]      do_syscall_64+0xc6/0x1e0
[  231.791999][   T73] 
[  231.794023][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  231.794023][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  231.794023][   T73]      ipv6_find_idev+0x102/0x170
[  231.794023][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  231.794023][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  231.794023][   T73]      netlink_rcv_skb+0x130/0x360
[  231.794023][   T73]      netlink_unicast+0x449/0x710
[  231.794023][   T73]      netlink_sendmsg+0x723/0xbe0
[  231.794023][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  231.794023][   T73]      ___sys_sendmsg+0xee/0x170
[  231.794023][   T73]      __sys_sendmsg+0xcd/0x170
[  231.794023][   T73]      do_syscall_64+0xc6/0x1e0
[  231.794023][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  231.794023][   T73] 
[  231.795804][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  231.795804][   T73]      neigh_parms_alloc+0x1e5/0x510
[  231.795804][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  231.795804][   T73]      ipv6_find_idev+0x102/0x170
[  231.795804][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  231.795804][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  231.795804][   T73]      netlink_rcv_skb+0x130/0x360
[  231.795804][   T73]      netlink_unicast+0x449/0x710
[  231.795804][   T73]      netlink_sendmsg+0x723/0xbe0
[  231.795804][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  231.795804][   T73]      ___sys_sendmsg+0xee/0x170
[  231.795804][   T73]      __sys_sendmsg+0xcd/0x170
[  231.795804][   T73]      do_syscall_64+0xc6/0x1e0
[  231.795804][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  231.795804][   T73] 
[  231.797622][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  231.797953][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  231.797953][   T73]      netdev_get_by_index+0x5e/0x80
[  231.797953][   T73]      fib6_nh_init+0x3d8/0x1580
[  231.797953][   T73]      ip6_route_info_create+0xf18/0x17d0
[  231.797953][   T73]      addrconf_f6i_alloc+0x265/0x560
[  231.797953][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  231.797953][   T73]      addrconf_join_anycast+0x1c0/0x220
[  231.797953][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  231.797953][   T73]      addrconf_dad_completed+0x12b/0xe20
[  231.797953][   T73]      addrconf_dad_begin+0x310/0x670
[  231.797953][   T73]      addrconf_dad_work+0x10b/0xab0
[  231.797953][   T73]      process_one_work+0x84d/0x18a0
[  231.797953][   T73]      worker_thread+0x587/0xd30
[  231.797953][   T73]      kthread+0x28a/0x350
[  231.797953][   T73]      ret_from_fork+0x31/0x70
[  231.797953][   T73]      ret_from_fork_asm+0x1a/0x30
[  231.797953][   T73] 
[  231.799987][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  231.799987][   T73]      netdev_get_by_index+0x5e/0x80
[  231.799987][   T73]      fib6_nh_init+0x3d8/0x1580
[  231.799987][   T73]      ip6_route_info_create+0xf18/0x17d0
[  231.799987][   T73]      ip6_route_add+0x1c/0x140
[  231.799987][   T73]      addrconf_prefix_route+0x2a6/0x430
[  231.799987][   T73]      inet6_addr_add+0x4f8/0xa40
[  231.799987][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  231.799987][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  231.799987][   T73]      netlink_rcv_skb+0x130/0x360
[  231.799987][   T73]      netlink_unicast+0x449/0x710
[  231.799987][   T73]      netlink_sendmsg+0x723/0xbe0
[  231.799987][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  231.799987][   T73]      ___sys_sendmsg+0xee/0x170
[  231.799987][   T73]      __sys_sendmsg+0xcd/0x170
[  231.799987][   T73]      do_syscall_64+0xc6/0x1e0
[  231.799987][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  231.799987][   T73] 
[  231.802084][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  231.802084][   T73]      netdev_get_by_index+0x5e/0x80
[  231.802084][   T73]      fib6_nh_init+0x3d8/0x1580
[  231.802084][   T73]      ip6_route_info_create+0xf18/0x17d0
[  231.802084][   T73]      addrconf_f6i_alloc+0x315/0x560
[  231.802084][   T73]      ipv6_add_addr+0x411/0x2000
[  231.802084][   T73]      inet6_addr_add+0x30e/0xa40
[  231.802084][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  231.802084][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  231.802084][   T73]      netlink_rcv_skb+0x130/0x360
[  231.802084][   T73]      netlink_unicast+0x449/0x710
[  231.802084][   T73]      netlink_sendmsg+0x723/0xbe0
[  231.802084][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  231.802084][   T73]      ___sys_sendmsg+0xee/0x170
[  231.802084][   T73]      __sys_sendmsg+0xcd/0x170
[  231.802084][   T73]      do_syscall_64+0xc6/0x1e0
[  231.802084][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  231.802084][   T73] 
[  231.804145][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  231.804145][   T73]      netdev_get_by_index+0x5e/0x80
[  231.804145][   T73]      fib6_nh_init+0x3d8/0x1580
[  231.804145][   T73]      ip6_route_info_create+0xf18/0x17d0
[  231.804145][   T73]      ip6_route_add+0x1c/0x140
[  231.804145][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  231.804145][   T73]      addrconf_add_dev+0xe2/0x170
[  231.804145][   T73]      inet6_addr_add+0x12f/0xa40
[  231.804145][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  231.804145][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  231.804145][   T73]      netlink_rcv_skb+0x130/0x360
[  231.804145][   T73]      netlink_unicast+0x449/0x710
[  231.804145][   T73]      netlink_sendmsg+0x723/0xbe0
[  231.804145][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  231.804145][   T73]      ___sys_sendmsg+0xee/0x170
[  231.804145][   T73]      __sys_sendmsg+0xcd/0x170
[  231.804145][   T73]      do_syscall_64+0xc6/0x1e0
[  231.804145][   T73] 
[  231.806217][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  231.806217][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  231.806217][   T73]      ipv6_find_idev+0x102/0x170
[  231.806217][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  231.806217][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  231.806217][   T73]      netlink_rcv_skb+0x130/0x360
[  231.806217][   T73]      netlink_unicast+0x449/0x710
[  231.806217][   T73]      netlink_sendmsg+0x723/0xbe0
[  231.806217][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  231.806217][   T73]      ___sys_sendmsg+0xee/0x170
[  231.806217][   T73]      __sys_sendmsg+0xcd/0x170
[  231.806217][   T73]      do_syscall_64+0xc6/0x1e0
[  231.806217][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  231.806217][   T73] 
[  231.807821][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  231.807821][   T73]      neigh_parms_alloc+0x1e5/0x510
[  231.807821][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  231.807821][   T73]      ipv6_find_idev+0x102/0x170
[  231.807821][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  231.807821][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  231.807821][   T73]      netlink_rcv_skb+0x130/0x360
[  231.807821][   T73]      netlink_unicast+0x449/0x710
[  231.807821][   T73]      netlink_sendmsg+0x723/0xbe0
[  231.807821][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  231.807821][   T73]      ___sys_sendmsg+0xee/0x170
[  231.807821][   T73]      __sys_sendmsg+0xcd/0x170
[  231.807821][   T73]      do_syscall_64+0xc6/0x1e0
[  231.807821][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  231.807821][   T73] 
[  231.809622][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  231.809929][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  231.809929][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  231.809929][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  231.809929][   T73]      fib6_nh_init+0xa22/0x1580
[  231.809929][   T73]      ip6_route_info_create+0xf18/0x17d0
[  231.809929][   T73]      ip6_route_add+0x1c/0x140
[  231.809929][   T73]      inet6_rtm_newroute+0x104/0x110
[  231.809929][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  231.809929][   T73]      netlink_rcv_skb+0x130/0x360
[  231.809929][   T73]      netlink_unicast+0x449/0x710
[  231.809929][   T73]      netlink_sendmsg+0x723/0xbe0
[  231.809929][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  231.809929][   T73]      ___sys_sendmsg+0xee/0x170
[  231.809929][   T73]      __sys_sendmsg+0xcd/0x170
[  231.809929][   T73]      do_syscall_64+0xc6/0x1e0
[  231.809929][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  231.809929][   T73] 
[  231.812016][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  231.812016][   T73]      dst_init+0x84/0x4a0
[  231.812016][   T73]      dst_alloc+0x97/0x150
[  231.812016][   T73]      ip6_dst_alloc+0x23/0x90
[  231.812016][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  231.812016][   T73]      ip6_pol_route+0x56f/0x840
[  231.812016][   T73]      fib6_rule_lookup+0x456/0x630
[  231.812016][   T73]      ip6_route_input+0x59c/0xa50
[  231.812016][   T73]      ipv6_rcv+0x397/0x810
[  231.812016][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  231.812016][   T73]      process_backlog+0x101/0x620
[  231.812016][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  231.812016][   T73]      net_rx_action+0x495/0xbe0
[  231.812016][   T73]      __do_softirq+0x1b5/0x7f6
[  231.812016][   T73] 
[  231.813939][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  231.813939][   T73]      netdev_get_by_index+0x5e/0x80
[  231.813939][   T73]      fib6_nh_init+0x3d8/0x1580
[  231.813939][   T73]      ip6_route_info_create+0xf18/0x17d0
[  231.813939][   T73]      ip6_route_add+0x1c/0x140
[  231.813939][   T73]      addrconf_prefix_route+0x2a6/0x430
[  231.813939][   T73]      inet6_addr_add+0x4f8/0xa40
[  231.813939][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  231.813939][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  231.813939][   T73]      netlink_rcv_skb+0x130/0x360
[  231.813939][   T73]      netlink_unicast+0x449/0x710
[  231.813939][   T73]      netlink_sendmsg+0x723/0xbe0
[  231.813939][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  231.813939][   T73]      ___sys_sendmsg+0xee/0x170
[  231.813939][   T73]      __sys_sendmsg+0xcd/0x170
[  231.813939][   T73]      do_syscall_64+0xc6/0x1e0
[  231.813939][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  231.813939][   T73] 
[  231.816202][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  231.816202][   T73]      netdev_get_by_index+0x5e/0x80
[  231.816202][   T73]      fib6_nh_init+0x3d8/0x1580
[  231.816202][   T73]      ip6_route_info_create+0xf18/0x17d0
[  231.816202][   T73]      addrconf_f6i_alloc+0x315/0x560
[  231.816202][   T73]      ipv6_add_addr+0x411/0x2000
[  231.816202][   T73]      inet6_addr_add+0x30e/0xa40
[  231.816202][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  231.816202][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  231.816202][   T73]      netlink_rcv_skb+0x130/0x360
[  231.816202][   T73]      netlink_unicast+0x449/0x710
[  231.816202][   T73]      netlink_sendmsg+0x723/0xbe0
[  231.816202][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  231.816202][   T73]      ___sys_sendmsg+0xee/0x170
[  231.816202][   T73]      __sys_sendmsg+0xcd/0x170
[  231.816202][   T73]      do_syscall_64+0xc6/0x1e0
[  231.816202][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  231.816202][   T73] 
[  231.818559][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  231.818559][   T73]      netdev_get_by_index+0x5e/0x80
[  231.818559][   T73]      fib6_nh_init+0x3d8/0x1580
[  231.818559][   T73]      ip6_route_info_create+0xf18/0x17d0
[  231.818559][   T73]      ip6_route_add+0x1c/0x140
[  231.818559][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  231.818559][   T73]      addrconf_add_dev+0xe2/0x170
[  231.818559][   T73]      inet6_addr_add+0x12f/0xa40
[  231.818559][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  231.818559][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  231.818559][   T73]      netlink_rcv_skb+0x130/0x360
[  231.818559][   T73]      netlink_unicast+0x449/0x710
[  231.818559][   T73]      netlink_sendmsg+0x723/0xbe0
[  231.818559][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  231.818559][   T73]      ___sys_sendmsg+0xee/0x170
[  231.818559][   T73]      __sys_sendmsg+0xcd/0x170
[  231.818559][   T73]      do_syscall_64+0xc6/0x1e0
[  231.818559][   T73] 
[  231.821475][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  231.821475][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  231.821475][   T73]      ipv6_find_idev+0x102/0x170
[  231.821475][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  231.821475][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  231.821475][   T73]      netlink_rcv_skb+0x130/0x360
[  231.821475][   T73]      netlink_unicast+0x449/0x710
[  231.821475][   T73]      netlink_sendmsg+0x723/0xbe0
[  231.821475][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  231.821475][   T73]      ___sys_sendmsg+0xee/0x170
[  231.821475][   T73]      __sys_sendmsg+0xcd/0x170
[  231.821475][   T73]      do_syscall_64+0xc6/0x1e0
[  231.821475][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  231.821475][   T73] 
[  231.823229][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  231.823229][   T73]      neigh_parms_alloc+0x1e5/0x510
[  231.823229][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  231.823229][   T73]      ipv6_find_idev+0x102/0x170
[  231.823229][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  231.823229][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  231.823229][   T73]      netlink_rcv_skb+0x130/0x360
[  231.823229][   T73]      netlink_unicast+0x449/0x710
[  231.823229][   T73]      netlink_sendmsg+0x723/0xbe0
[  231.823229][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  231.823229][   T73]      ___sys_sendmsg+0xee/0x170
[  231.823229][   T73]      __sys_sendmsg+0xcd/0x170
[  231.823229][   T73]      do_syscall_64+0xc6/0x1e0
[  231.823229][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  231.823229][   T73] 
[  231.825192][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  231.825541][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  231.825541][   T73]      netdev_get_by_index+0x5e/0x80
[  231.825541][   T73]      fib6_nh_init+0x3d8/0x1580
[  231.825541][   T73]      ip6_route_info_create+0xf18/0x17d0
[  231.825541][   T73]      addrconf_f6i_alloc+0x265/0x560
[  231.825541][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  231.825541][   T73]      addrconf_join_anycast+0x1c0/0x220
[  231.825541][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  231.825541][   T73]      addrconf_dad_completed+0x12b/0xe20
[  231.825541][   T73]      addrconf_dad_begin+0x310/0x670
[  231.825541][   T73]      addrconf_dad_work+0x10b/0xab0
[  231.825541][   T73]      process_one_work+0x84d/0x18a0
[  231.825541][   T73]      worker_thread+0x587/0xd30
[  231.825541][   T73]      kthread+0x28a/0x350
[  231.825541][   T73]      ret_from_fork+0x31/0x70
[  231.825541][   T73]      ret_from_fork_asm+0x1a/0x30
[  231.825541][   T73] 
[  231.827716][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  231.827716][   T73]      netdev_get_by_index+0x5e/0x80
[  231.827716][   T73]      fib6_nh_init+0x3d8/0x1580
[  231.827716][   T73]      ip6_route_info_create+0xf18/0x17d0
[  231.827716][   T73]      ip6_route_add+0x1c/0x140
[  231.827716][   T73]      addrconf_prefix_route+0x2a6/0x430
[  231.827716][   T73]      inet6_addr_add+0x4f8/0xa40
[  231.827716][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  231.827716][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  231.827716][   T73]      netlink_rcv_skb+0x130/0x360
[  231.827716][   T73]      netlink_unicast+0x449/0x710
[  231.827716][   T73]      netlink_sendmsg+0x723/0xbe0
[  231.827716][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  231.827716][   T73]      ___sys_sendmsg+0xee/0x170
[  231.827716][   T73]      __sys_sendmsg+0xcd/0x170
[  231.827716][   T73]      do_syscall_64+0xc6/0x1e0
[  231.827716][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  231.827716][   T73] 
[  231.829988][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  231.829988][   T73]      netdev_get_by_index+0x5e/0x80
[  231.829988][   T73]      fib6_nh_init+0x3d8/0x1580
[  231.829988][   T73]      ip6_route_info_create+0xf18/0x17d0
[  231.829988][   T73]      addrconf_f6i_alloc+0x315/0x560
[  231.829988][   T73]      ipv6_add_addr+0x411/0x2000
[  231.829988][   T73]      inet6_addr_add+0x30e/0xa40
[  231.829988][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  231.829988][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  231.829988][   T73]      netlink_rcv_skb+0x130/0x360
[  231.829988][   T73]      netlink_unicast+0x449/0x710
[  231.829988][   T73]      netlink_sendmsg+0x723/0xbe0
[  231.829988][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  231.829988][   T73]      ___sys_sendmsg+0xee/0x170
[  231.829988][   T73]      __sys_sendmsg+0xcd/0x170
[  231.829988][   T73]      do_syscall_64+0xc6/0x1e0
[  231.829988][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  231.829988][   T73] 
[  231.832387][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  231.832387][   T73]      netdev_get_by_index+0x5e/0x80
[  231.832387][   T73]      fib6_nh_init+0x3d8/0x1580
[  231.832387][   T73]      ip6_route_info_create+0xf18/0x17d0
[  231.832387][   T73]      ip6_route_add+0x1c/0x140
[  231.832387][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  231.832387][   T73]      addrconf_add_dev+0xe2/0x170
[  231.832387][   T73]      inet6_addr_add+0x12f/0xa40
[  231.832387][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  231.832387][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  231.832387][   T73]      netlink_rcv_skb+0x130/0x360
[  231.832387][   T73]      netlink_unicast+0x449/0x710
[  231.832387][   T73]      netlink_sendmsg+0x723/0xbe0
[  231.832387][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  231.832387][   T73]      ___sys_sendmsg+0xee/0x170
[  231.832387][   T73]      __sys_sendmsg+0xcd/0x170
[  231.832387][   T73]      do_syscall_64+0xc6/0x1e0
[  231.832387][   T73] 
[  231.834695][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  231.834695][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  231.834695][   T73]      ipv6_find_idev+0x102/0x170
[  231.834695][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  231.834695][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  231.834695][   T73]      netlink_rcv_skb+0x130/0x360
[  231.834695][   T73]      netlink_unicast+0x449/0x710
[  231.834695][   T73]      netlink_sendmsg+0x723/0xbe0
[  231.834695][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  231.834695][   T73]      ___sys_sendmsg+0xee/0x170
[  231.834695][   T73]      __sys_sendmsg+0xcd/0x170
[  231.834695][   T73]      do_syscall_64+0xc6/0x1e0
[  231.834695][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  231.834695][   T73] 
[  231.836472][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  231.836472][   T73]      neigh_parms_alloc+0x1e5/0x510
[  231.836472][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  231.836472][   T73]      ipv6_find_idev+0x102/0x170
[  231.836472][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  231.836472][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  231.836472][   T73]      netlink_rcv_skb+0x130/0x360
[  231.836472][   T73]      netlink_unicast+0x449/0x710
[  231.836472][   T73]      netlink_sendmsg+0x723/0xbe0
[  231.836472][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  231.836472][   T73]      ___sys_sendmsg+0xee/0x170
[  231.836472][   T73]      __sys_sendmsg+0xcd/0x170
[  231.836472][   T73]      do_syscall_64+0xc6/0x1e0
[  231.836472][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  231.836472][   T73] 
[  242.079764][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  242.080398][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  242.080398][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  242.080398][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  242.080398][   T73]      fib6_nh_init+0xa22/0x1580
[  242.080398][   T73]      ip6_route_info_create+0xf18/0x17d0
[  242.080398][   T73]      ip6_route_add+0x1c/0x140
[  242.080398][   T73]      inet6_rtm_newroute+0x104/0x110
[  242.080398][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  242.080398][   T73]      netlink_rcv_skb+0x130/0x360
[  242.080398][   T73]      netlink_unicast+0x449/0x710
[  242.080398][   T73]      netlink_sendmsg+0x723/0xbe0
[  242.080398][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  242.080398][   T73]      ___sys_sendmsg+0xee/0x170
[  242.080398][   T73]      __sys_sendmsg+0xcd/0x170
[  242.080398][   T73]      do_syscall_64+0xc6/0x1e0
[  242.080398][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  242.080398][   T73] 
[  242.083559][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  242.083559][   T73]      dst_init+0x84/0x4a0
[  242.083559][   T73]      dst_alloc+0x97/0x150
[  242.083559][   T73]      ip6_dst_alloc+0x23/0x90
[  242.083559][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  242.083559][   T73]      ip6_pol_route+0x56f/0x840
[  242.083559][   T73]      fib6_rule_lookup+0x456/0x630
[  242.083559][   T73]      ip6_route_input+0x59c/0xa50
[  242.083559][   T73]      ipv6_rcv+0x397/0x810
[  242.083559][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  242.083559][   T73]      process_backlog+0x101/0x620
[  242.083559][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  242.083559][   T73]      net_rx_action+0x495/0xbe0
[  242.083559][   T73]      __do_softirq+0x1b5/0x7f6
[  242.083559][   T73] 
[  242.086305][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  242.086305][   T73]      netdev_get_by_index+0x5e/0x80
[  242.086305][   T73]      fib6_nh_init+0x3d8/0x1580
[  242.086305][   T73]      ip6_route_info_create+0xf18/0x17d0
[  242.086305][   T73]      ip6_route_add+0x1c/0x140
[  242.086305][   T73]      addrconf_prefix_route+0x2a6/0x430
[  242.086305][   T73]      inet6_addr_add+0x4f8/0xa40
[  242.086305][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  242.086305][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  242.086305][   T73]      netlink_rcv_skb+0x130/0x360
[  242.086305][   T73]      netlink_unicast+0x449/0x710
[  242.086305][   T73]      netlink_sendmsg+0x723/0xbe0
[  242.086305][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  242.086305][   T73]      ___sys_sendmsg+0xee/0x170
[  242.086305][   T73]      __sys_sendmsg+0xcd/0x170
[  242.086305][   T73]      do_syscall_64+0xc6/0x1e0
[  242.086305][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  242.086305][   T73] 
[  242.089668][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  242.089668][   T73]      netdev_get_by_index+0x5e/0x80
[  242.089668][   T73]      fib6_nh_init+0x3d8/0x1580
[  242.089668][   T73]      ip6_route_info_create+0xf18/0x17d0
[  242.089668][   T73]      addrconf_f6i_alloc+0x315/0x560
[  242.089668][   T73]      ipv6_add_addr+0x411/0x2000
[  242.089668][   T73]      inet6_addr_add+0x30e/0xa40
[  242.089668][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  242.089668][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  242.089668][   T73]      netlink_rcv_skb+0x130/0x360
[  242.089668][   T73]      netlink_unicast+0x449/0x710
[  242.089668][   T73]      netlink_sendmsg+0x723/0xbe0
[  242.089668][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  242.089668][   T73]      ___sys_sendmsg+0xee/0x170
[  242.089668][   T73]      __sys_sendmsg+0xcd/0x170
[  242.089668][   T73]      do_syscall_64+0xc6/0x1e0
[  242.089668][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  242.089668][   T73] 
[  242.093080][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  242.093080][   T73]      netdev_get_by_index+0x5e/0x80
[  242.093080][   T73]      fib6_nh_init+0x3d8/0x1580
[  242.093080][   T73]      ip6_route_info_create+0xf18/0x17d0
[  242.093080][   T73]      ip6_route_add+0x1c/0x140
[  242.093080][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  242.093080][   T73]      addrconf_add_dev+0xe2/0x170
[  242.093080][   T73]      inet6_addr_add+0x12f/0xa40
[  242.093080][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  242.093080][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  242.093080][   T73]      netlink_rcv_skb+0x130/0x360
[  242.093080][   T73]      netlink_unicast+0x449/0x710
[  242.093080][   T73]      netlink_sendmsg+0x723/0xbe0
[  242.093080][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  242.093080][   T73]      ___sys_sendmsg+0xee/0x170
[  242.093080][   T73]      __sys_sendmsg+0xcd/0x170
[  242.093080][   T73]      do_syscall_64+0xc6/0x1e0
[  242.093080][   T73] 
[  242.095636][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  242.095636][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  242.095636][   T73]      ipv6_find_idev+0x102/0x170
[  242.095636][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  242.095636][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  242.095636][   T73]      netlink_rcv_skb+0x130/0x360
[  242.095636][   T73]      netlink_unicast+0x449/0x710
[  242.095636][   T73]      netlink_sendmsg+0x723/0xbe0
[  242.095636][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  242.095636][   T73]      ___sys_sendmsg+0xee/0x170
[  242.095636][   T73]      __sys_sendmsg+0xcd/0x170
[  242.095636][   T73]      do_syscall_64+0xc6/0x1e0
[  242.095636][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  242.095636][   T73] 
[  242.097338][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  242.097338][   T73]      neigh_parms_alloc+0x1e5/0x510
[  242.097338][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  242.097338][   T73]      ipv6_find_idev+0x102/0x170
[  242.097338][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  242.097338][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  242.097338][   T73]      netlink_rcv_skb+0x130/0x360
[  242.097338][   T73]      netlink_unicast+0x449/0x710
[  242.097338][   T73]      netlink_sendmsg+0x723/0xbe0
[  242.097338][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  242.097338][   T73]      ___sys_sendmsg+0xee/0x170
[  242.097338][   T73]      __sys_sendmsg+0xcd/0x170
[  242.097338][   T73]      do_syscall_64+0xc6/0x1e0
[  242.097338][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  242.097338][   T73] 
[  242.099223][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  242.099533][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  242.099533][   T73]      netdev_get_by_index+0x5e/0x80
[  242.099533][   T73]      fib6_nh_init+0x3d8/0x1580
[  242.099533][   T73]      ip6_route_info_create+0xf18/0x17d0
[  242.099533][   T73]      addrconf_f6i_alloc+0x265/0x560
[  242.099533][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  242.099533][   T73]      addrconf_join_anycast+0x1c0/0x220
[  242.099533][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  242.099533][   T73]      addrconf_dad_completed+0x12b/0xe20
[  242.099533][   T73]      addrconf_dad_begin+0x310/0x670
[  242.099533][   T73]      addrconf_dad_work+0x10b/0xab0
[  242.099533][   T73]      process_one_work+0x84d/0x18a0
[  242.099533][   T73]      worker_thread+0x587/0xd30
[  242.099533][   T73]      kthread+0x28a/0x350
[  242.099533][   T73]      ret_from_fork+0x31/0x70
[  242.099533][   T73]      ret_from_fork_asm+0x1a/0x30
[  242.099533][   T73] 
[  242.101623][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  242.101623][   T73]      netdev_get_by_index+0x5e/0x80
[  242.101623][   T73]      fib6_nh_init+0x3d8/0x1580
[  242.101623][   T73]      ip6_route_info_create+0xf18/0x17d0
[  242.101623][   T73]      ip6_route_add+0x1c/0x140
[  242.101623][   T73]      addrconf_prefix_route+0x2a6/0x430
[  242.101623][   T73]      inet6_addr_add+0x4f8/0xa40
[  242.101623][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  242.101623][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  242.101623][   T73]      netlink_rcv_skb+0x130/0x360
[  242.101623][   T73]      netlink_unicast+0x449/0x710
[  242.101623][   T73]      netlink_sendmsg+0x723/0xbe0
[  242.101623][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  242.101623][   T73]      ___sys_sendmsg+0xee/0x170
[  242.101623][   T73]      __sys_sendmsg+0xcd/0x170
[  242.101623][   T73]      do_syscall_64+0xc6/0x1e0
[  242.101623][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  242.101623][   T73] 
[  242.103833][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  242.103833][   T73]      netdev_get_by_index+0x5e/0x80
[  242.103833][   T73]      fib6_nh_init+0x3d8/0x1580
[  242.103833][   T73]      ip6_route_info_create+0xf18/0x17d0
[  242.103833][   T73]      addrconf_f6i_alloc+0x315/0x560
[  242.103833][   T73]      ipv6_add_addr+0x411/0x2000
[  242.103833][   T73]      inet6_addr_add+0x30e/0xa40
[  242.103833][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  242.103833][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  242.103833][   T73]      netlink_rcv_skb+0x130/0x360
[  242.103833][   T73]      netlink_unicast+0x449/0x710
[  242.103833][   T73]      netlink_sendmsg+0x723/0xbe0
[  242.103833][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  242.103833][   T73]      ___sys_sendmsg+0xee/0x170
[  242.103833][   T73]      __sys_sendmsg+0xcd/0x170
[  242.103833][   T73]      do_syscall_64+0xc6/0x1e0
[  242.103833][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  242.103833][   T73] 
[  242.106073][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  242.106073][   T73]      netdev_get_by_index+0x5e/0x80
[  242.106073][   T73]      fib6_nh_init+0x3d8/0x1580
[  242.106073][   T73]      ip6_route_info_create+0xf18/0x17d0
[  242.106073][   T73]      ip6_route_add+0x1c/0x140
[  242.106073][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  242.106073][   T73]      addrconf_add_dev+0xe2/0x170
[  242.106073][   T73]      inet6_addr_add+0x12f/0xa40
[  242.106073][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  242.106073][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  242.106073][   T73]      netlink_rcv_skb+0x130/0x360
[  242.106073][   T73]      netlink_unicast+0x449/0x710
[  242.106073][   T73]      netlink_sendmsg+0x723/0xbe0
[  242.106073][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  242.106073][   T73]      ___sys_sendmsg+0xee/0x170
[  242.106073][   T73]      __sys_sendmsg+0xcd/0x170
[  242.106073][   T73]      do_syscall_64+0xc6/0x1e0
[  242.106073][   T73] 
[  242.108252][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  242.108252][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  242.108252][   T73]      ipv6_find_idev+0x102/0x170
[  242.108252][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  242.108252][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  242.108252][   T73]      netlink_rcv_skb+0x130/0x360
[  242.108252][   T73]      netlink_unicast+0x449/0x710
[  242.108252][   T73]      netlink_sendmsg+0x723/0xbe0
[  242.108252][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  242.108252][   T73]      ___sys_sendmsg+0xee/0x170
[  242.108252][   T73]      __sys_sendmsg+0xcd/0x170
[  242.108252][   T73]      do_syscall_64+0xc6/0x1e0
[  242.108252][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  242.108252][   T73] 
[  242.109947][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  242.109947][   T73]      neigh_parms_alloc+0x1e5/0x510
[  242.109947][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  242.109947][   T73]      ipv6_find_idev+0x102/0x170
[  242.109947][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  242.109947][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  242.109947][   T73]      netlink_rcv_skb+0x130/0x360
[  242.109947][   T73]      netlink_unicast+0x449/0x710
[  242.109947][   T73]      netlink_sendmsg+0x723/0xbe0
[  242.109947][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  242.109947][   T73]      ___sys_sendmsg+0xee/0x170
[  242.109947][   T73]      __sys_sendmsg+0xcd/0x170
[  242.109947][   T73]      do_syscall_64+0xc6/0x1e0
[  242.109947][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  242.109947][   T73] 
[  242.112224][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  242.112518][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  242.112518][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  242.112518][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  242.112518][   T73]      fib6_nh_init+0xa22/0x1580
[  242.112518][   T73]      ip6_route_info_create+0xf18/0x17d0
[  242.112518][   T73]      ip6_route_add+0x1c/0x140
[  242.112518][   T73]      inet6_rtm_newroute+0x104/0x110
[  242.112518][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  242.112518][   T73]      netlink_rcv_skb+0x130/0x360
[  242.112518][   T73]      netlink_unicast+0x449/0x710
[  242.112518][   T73]      netlink_sendmsg+0x723/0xbe0
[  242.112518][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  242.112518][   T73]      ___sys_sendmsg+0xee/0x170
[  242.112518][   T73]      __sys_sendmsg+0xcd/0x170
[  242.112518][   T73]      do_syscall_64+0xc6/0x1e0
[  242.112518][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  242.112518][   T73] 
[  242.114781][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  242.114781][   T73]      dst_init+0x84/0x4a0
[  242.114781][   T73]      dst_alloc+0x97/0x150
[  242.114781][   T73]      ip6_dst_alloc+0x23/0x90
[  242.114781][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  242.114781][   T73]      ip6_pol_route+0x56f/0x840
[  242.114781][   T73]      fib6_rule_lookup+0x456/0x630
[  242.114781][   T73]      ip6_route_input+0x59c/0xa50
[  242.114781][   T73]      ipv6_rcv+0x397/0x810
[  242.114781][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  242.114781][   T73]      process_backlog+0x101/0x620
[  242.114781][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  242.114781][   T73]      net_rx_action+0x495/0xbe0
[  242.114781][   T73]      __do_softirq+0x1b5/0x7f6
[  242.114781][   T73] 
[  242.116773][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  242.116773][   T73]      netdev_get_by_index+0x5e/0x80
[  242.116773][   T73]      fib6_nh_init+0x3d8/0x1580
[  242.116773][   T73]      ip6_route_info_create+0xf18/0x17d0
[  242.116773][   T73]      ip6_route_add+0x1c/0x140
[  242.116773][   T73]      addrconf_prefix_route+0x2a6/0x430
[  242.116773][   T73]      inet6_addr_add+0x4f8/0xa40
[  242.116773][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  242.116773][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  242.116773][   T73]      netlink_rcv_skb+0x130/0x360
[  242.116773][   T73]      netlink_unicast+0x449/0x710
[  242.116773][   T73]      netlink_sendmsg+0x723/0xbe0
[  242.116773][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  242.116773][   T73]      ___sys_sendmsg+0xee/0x170
[  242.116773][   T73]      __sys_sendmsg+0xcd/0x170
[  242.116773][   T73]      do_syscall_64+0xc6/0x1e0
[  242.116773][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  242.116773][   T73] 
[  242.119305][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  242.119305][   T73]      netdev_get_by_index+0x5e/0x80
[  242.119305][   T73]      fib6_nh_init+0x3d8/0x1580
[  242.119305][   T73]      ip6_route_info_create+0xf18/0x17d0
[  242.119305][   T73]      addrconf_f6i_alloc+0x315/0x560
[  242.119305][   T73]      ipv6_add_addr+0x411/0x2000
[  242.119305][   T73]      inet6_addr_add+0x30e/0xa40
[  242.119305][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  242.119305][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  242.119305][   T73]      netlink_rcv_skb+0x130/0x360
[  242.119305][   T73]      netlink_unicast+0x449/0x710
[  242.119305][   T73]      netlink_sendmsg+0x723/0xbe0
[  242.119305][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  242.119305][   T73]      ___sys_sendmsg+0xee/0x170
[  242.119305][   T73]      __sys_sendmsg+0xcd/0x170
[  242.119305][   T73]      do_syscall_64+0xc6/0x1e0
[  242.119305][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  242.119305][   T73] 
[  242.121754][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  242.121754][   T73]      netdev_get_by_index+0x5e/0x80
[  242.121754][   T73]      fib6_nh_init+0x3d8/0x1580
[  242.121754][   T73]      ip6_route_info_create+0xf18/0x17d0
[  242.121754][   T73]      ip6_route_add+0x1c/0x140
[  242.121754][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  242.121754][   T73]      addrconf_add_dev+0xe2/0x170
[  242.121754][   T73]      inet6_addr_add+0x12f/0xa40
[  242.121754][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  242.121754][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  242.121754][   T73]      netlink_rcv_skb+0x130/0x360
[  242.121754][   T73]      netlink_unicast+0x449/0x710
[  242.121754][   T73]      netlink_sendmsg+0x723/0xbe0
[  242.121754][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  242.121754][   T73]      ___sys_sendmsg+0xee/0x170
[  242.121754][   T73]      __sys_sendmsg+0xcd/0x170
[  242.121754][   T73]      do_syscall_64+0xc6/0x1e0
[  242.121754][   T73] 
[  242.124177][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  242.124177][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  242.124177][   T73]      ipv6_find_idev+0x102/0x170
[  242.124177][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  242.124177][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  242.124177][   T73]      netlink_rcv_skb+0x130/0x360
[  242.124177][   T73]      netlink_unicast+0x449/0x710
[  242.124177][   T73]      netlink_sendmsg+0x723/0xbe0
[  242.124177][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  242.124177][   T73]      ___sys_sendmsg+0xee/0x170
[  242.124177][   T73]      __sys_sendmsg+0xcd/0x170
[  242.124177][   T73]      do_syscall_64+0xc6/0x1e0
[  242.124177][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  242.124177][   T73] 
[  242.126066][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  242.126066][   T73]      neigh_parms_alloc+0x1e5/0x510
[  242.126066][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  242.126066][   T73]      ipv6_find_idev+0x102/0x170
[  242.126066][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  242.126066][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  242.126066][   T73]      netlink_rcv_skb+0x130/0x360
[  242.126066][   T73]      netlink_unicast+0x449/0x710
[  242.126066][   T73]      netlink_sendmsg+0x723/0xbe0
[  242.126066][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  242.126066][   T73]      ___sys_sendmsg+0xee/0x170
[  242.126066][   T73]      __sys_sendmsg+0xcd/0x170
[  242.126066][   T73]      do_syscall_64+0xc6/0x1e0
[  242.126066][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  242.126066][   T73] 
[  242.128118][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  242.128422][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  242.128422][   T73]      netdev_get_by_index+0x5e/0x80
[  242.128422][   T73]      fib6_nh_init+0x3d8/0x1580
[  242.128422][   T73]      ip6_route_info_create+0xf18/0x17d0
[  242.128422][   T73]      addrconf_f6i_alloc+0x265/0x560
[  242.128422][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  242.128422][   T73]      addrconf_join_anycast+0x1c0/0x220
[  242.128422][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  242.128422][   T73]      addrconf_dad_completed+0x12b/0xe20
[  242.128422][   T73]      addrconf_dad_begin+0x310/0x670
[  242.128422][   T73]      addrconf_dad_work+0x10b/0xab0
[  242.128422][   T73]      process_one_work+0x84d/0x18a0
[  242.128422][   T73]      worker_thread+0x587/0xd30
[  242.128422][   T73]      kthread+0x28a/0x350
[  242.128422][   T73]      ret_from_fork+0x31/0x70
[  242.128422][   T73]      ret_from_fork_asm+0x1a/0x30
[  242.128422][   T73] 
[  242.130838][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  242.130838][   T73]      netdev_get_by_index+0x5e/0x80
[  242.130838][   T73]      fib6_nh_init+0x3d8/0x1580
[  242.130838][   T73]      ip6_route_info_create+0xf18/0x17d0
[  242.130838][   T73]      ip6_route_add+0x1c/0x140
[  242.130838][   T73]      addrconf_prefix_route+0x2a6/0x430
[  242.130838][   T73]      inet6_addr_add+0x4f8/0xa40
[  242.130838][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  242.130838][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  242.130838][   T73]      netlink_rcv_skb+0x130/0x360
[  242.130838][   T73]      netlink_unicast+0x449/0x710
[  242.130838][   T73]      netlink_sendmsg+0x723/0xbe0
[  242.130838][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  242.130838][   T73]      ___sys_sendmsg+0xee/0x170
[  242.130838][   T73]      __sys_sendmsg+0xcd/0x170
[  242.130838][   T73]      do_syscall_64+0xc6/0x1e0
[  242.130838][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  242.130838][   T73] 
[  242.133286][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  242.133286][   T73]      netdev_get_by_index+0x5e/0x80
[  242.133286][   T73]      fib6_nh_init+0x3d8/0x1580
[  242.133286][   T73]      ip6_route_info_create+0xf18/0x17d0
[  242.133286][   T73]      addrconf_f6i_alloc+0x315/0x560
[  242.133286][   T73]      ipv6_add_addr+0x411/0x2000
[  242.133286][   T73]      inet6_addr_add+0x30e/0xa40
[  242.133286][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  242.133286][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  242.133286][   T73]      netlink_rcv_skb+0x130/0x360
[  242.133286][   T73]      netlink_unicast+0x449/0x710
[  242.133286][   T73]      netlink_sendmsg+0x723/0xbe0
[  242.133286][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  242.133286][   T73]      ___sys_sendmsg+0xee/0x170
[  242.133286][   T73]      __sys_sendmsg+0xcd/0x170
[  242.133286][   T73]      do_syscall_64+0xc6/0x1e0
[  242.133286][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  242.133286][   T73] 
[  242.135809][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  242.135809][   T73]      netdev_get_by_index+0x5e/0x80
[  242.135809][   T73]      fib6_nh_init+0x3d8/0x1580
[  242.135809][   T73]      ip6_route_info_create+0xf18/0x17d0
[  242.135809][   T73]      ip6_route_add+0x1c/0x140
[  242.135809][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  242.135809][   T73]      addrconf_add_dev+0xe2/0x170
[  242.135809][   T73]      inet6_addr_add+0x12f/0xa40
[  242.135809][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  242.135809][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  242.135809][   T73]      netlink_rcv_skb+0x130/0x360
[  242.135809][   T73]      netlink_unicast+0x449/0x710
[  242.135809][   T73]      netlink_sendmsg+0x723/0xbe0
[  242.135809][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  242.135809][   T73]      ___sys_sendmsg+0xee/0x170
[  242.135809][   T73]      __sys_sendmsg+0xcd/0x170
[  242.135809][   T73]      do_syscall_64+0xc6/0x1e0
[  242.135809][   T73] 
[  242.138162][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  242.138162][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  242.138162][   T73]      ipv6_find_idev+0x102/0x170
[  242.138162][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  242.138162][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  242.138162][   T73]      netlink_rcv_skb+0x130/0x360
[  242.138162][   T73]      netlink_unicast+0x449/0x710
[  242.138162][   T73]      netlink_sendmsg+0x723/0xbe0
[  242.138162][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  242.138162][   T73]      ___sys_sendmsg+0xee/0x170
[  242.138162][   T73]      __sys_sendmsg+0xcd/0x170
[  242.138162][   T73]      do_syscall_64+0xc6/0x1e0
[  242.138162][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  242.138162][   T73] 
[  242.140120][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  242.140120][   T73]      neigh_parms_alloc+0x1e5/0x510
[  242.140120][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  242.140120][   T73]      ipv6_find_idev+0x102/0x170
[  242.140120][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  242.140120][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  242.140120][   T73]      netlink_rcv_skb+0x130/0x360
[  242.140120][   T73]      netlink_unicast+0x449/0x710
[  242.140120][   T73]      netlink_sendmsg+0x723/0xbe0
[  242.140120][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  242.140120][   T73]      ___sys_sendmsg+0xee/0x170
[  242.140120][   T73]      __sys_sendmsg+0xcd/0x170
[  242.140120][   T73]      do_syscall_64+0xc6/0x1e0
[  242.140120][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  242.140120][   T73] 
[  252.215796][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  252.216277][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  252.216277][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  252.216277][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  252.216277][   T73]      fib6_nh_init+0xa22/0x1580
[  252.216277][   T73]      ip6_route_info_create+0xf18/0x17d0
[  252.216277][   T73]      ip6_route_add+0x1c/0x140
[  252.216277][   T73]      inet6_rtm_newroute+0x104/0x110
[  252.216277][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  252.216277][   T73]      netlink_rcv_skb+0x130/0x360
[  252.216277][   T73]      netlink_unicast+0x449/0x710
[  252.216277][   T73]      netlink_sendmsg+0x723/0xbe0
[  252.216277][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  252.216277][   T73]      ___sys_sendmsg+0xee/0x170
[  252.216277][   T73]      __sys_sendmsg+0xcd/0x170
[  252.216277][   T73]      do_syscall_64+0xc6/0x1e0
[  252.216277][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  252.216277][   T73] 
[  252.218276][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  252.218276][   T73]      dst_init+0x84/0x4a0
[  252.218276][   T73]      dst_alloc+0x97/0x150
[  252.218276][   T73]      ip6_dst_alloc+0x23/0x90
[  252.218276][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  252.218276][   T73]      ip6_pol_route+0x56f/0x840
[  252.218276][   T73]      fib6_rule_lookup+0x456/0x630
[  252.218276][   T73]      ip6_route_input+0x59c/0xa50
[  252.218276][   T73]      ipv6_rcv+0x397/0x810
[  252.218276][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  252.218276][   T73]      process_backlog+0x101/0x620
[  252.218276][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  252.218276][   T73]      net_rx_action+0x495/0xbe0
[  252.218276][   T73]      __do_softirq+0x1b5/0x7f6
[  252.218276][   T73] 
[  252.220097][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  252.220097][   T73]      netdev_get_by_index+0x5e/0x80
[  252.220097][   T73]      fib6_nh_init+0x3d8/0x1580
[  252.220097][   T73]      ip6_route_info_create+0xf18/0x17d0
[  252.220097][   T73]      ip6_route_add+0x1c/0x140
[  252.220097][   T73]      addrconf_prefix_route+0x2a6/0x430
[  252.220097][   T73]      inet6_addr_add+0x4f8/0xa40
[  252.220097][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  252.220097][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  252.220097][   T73]      netlink_rcv_skb+0x130/0x360
[  252.220097][   T73]      netlink_unicast+0x449/0x710
[  252.220097][   T73]      netlink_sendmsg+0x723/0xbe0
[  252.220097][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  252.220097][   T73]      ___sys_sendmsg+0xee/0x170
[  252.220097][   T73]      __sys_sendmsg+0xcd/0x170
[  252.220097][   T73]      do_syscall_64+0xc6/0x1e0
[  252.220097][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  252.220097][   T73] 
[  252.222345][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  252.222345][   T73]      netdev_get_by_index+0x5e/0x80
[  252.222345][   T73]      fib6_nh_init+0x3d8/0x1580
[  252.222345][   T73]      ip6_route_info_create+0xf18/0x17d0
[  252.222345][   T73]      addrconf_f6i_alloc+0x315/0x560
[  252.222345][   T73]      ipv6_add_addr+0x411/0x2000
[  252.222345][   T73]      inet6_addr_add+0x30e/0xa40
[  252.222345][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  252.222345][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  252.222345][   T73]      netlink_rcv_skb+0x130/0x360
[  252.222345][   T73]      netlink_unicast+0x449/0x710
[  252.222345][   T73]      netlink_sendmsg+0x723/0xbe0
[  252.222345][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  252.222345][   T73]      ___sys_sendmsg+0xee/0x170
[  252.222345][   T73]      __sys_sendmsg+0xcd/0x170
[  252.222345][   T73]      do_syscall_64+0xc6/0x1e0
[  252.222345][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  252.222345][   T73] 
[  252.224491][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  252.224491][   T73]      netdev_get_by_index+0x5e/0x80
[  252.224491][   T73]      fib6_nh_init+0x3d8/0x1580
[  252.224491][   T73]      ip6_route_info_create+0xf18/0x17d0
[  252.224491][   T73]      ip6_route_add+0x1c/0x140
[  252.224491][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  252.224491][   T73]      addrconf_add_dev+0xe2/0x170
[  252.224491][   T73]      inet6_addr_add+0x12f/0xa40
[  252.224491][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  252.224491][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  252.224491][   T73]      netlink_rcv_skb+0x130/0x360
[  252.224491][   T73]      netlink_unicast+0x449/0x710
[  252.224491][   T73]      netlink_sendmsg+0x723/0xbe0
[  252.224491][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  252.224491][   T73]      ___sys_sendmsg+0xee/0x170
[  252.224491][   T73]      __sys_sendmsg+0xcd/0x170
[  252.224491][   T73]      do_syscall_64+0xc6/0x1e0
[  252.224491][   T73] 
[  252.226587][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  252.226587][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  252.226587][   T73]      ipv6_find_idev+0x102/0x170
[  252.226587][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  252.226587][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  252.226587][   T73]      netlink_rcv_skb+0x130/0x360
[  252.226587][   T73]      netlink_unicast+0x449/0x710
[  252.226587][   T73]      netlink_sendmsg+0x723/0xbe0
[  252.226587][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  252.226587][   T73]      ___sys_sendmsg+0xee/0x170
[  252.226587][   T73]      __sys_sendmsg+0xcd/0x170
[  252.226587][   T73]      do_syscall_64+0xc6/0x1e0
[  252.226587][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  252.226587][   T73] 
[  252.228289][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  252.228289][   T73]      neigh_parms_alloc+0x1e5/0x510
[  252.228289][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  252.228289][   T73]      ipv6_find_idev+0x102/0x170
[  252.228289][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  252.228289][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  252.228289][   T73]      netlink_rcv_skb+0x130/0x360
[  252.228289][   T73]      netlink_unicast+0x449/0x710
[  252.228289][   T73]      netlink_sendmsg+0x723/0xbe0
[  252.228289][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  252.228289][   T73]      ___sys_sendmsg+0xee/0x170
[  252.228289][   T73]      __sys_sendmsg+0xcd/0x170
[  252.228289][   T73]      do_syscall_64+0xc6/0x1e0
[  252.228289][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  252.228289][   T73] 
[  252.230106][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  252.230414][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  252.230414][   T73]      netdev_get_by_index+0x5e/0x80
[  252.230414][   T73]      fib6_nh_init+0x3d8/0x1580
[  252.230414][   T73]      ip6_route_info_create+0xf18/0x17d0
[  252.230414][   T73]      addrconf_f6i_alloc+0x265/0x560
[  252.230414][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  252.230414][   T73]      addrconf_join_anycast+0x1c0/0x220
[  252.230414][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  252.230414][   T73]      addrconf_dad_completed+0x12b/0xe20
[  252.230414][   T73]      addrconf_dad_begin+0x310/0x670
[  252.230414][   T73]      addrconf_dad_work+0x10b/0xab0
[  252.230414][   T73]      process_one_work+0x84d/0x18a0
[  252.230414][   T73]      worker_thread+0x587/0xd30
[  252.230414][   T73]      kthread+0x28a/0x350
[  252.230414][   T73]      ret_from_fork+0x31/0x70
[  252.230414][   T73]      ret_from_fork_asm+0x1a/0x30
[  252.230414][   T73] 
[  252.232422][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  252.232422][   T73]      netdev_get_by_index+0x5e/0x80
[  252.232422][   T73]      fib6_nh_init+0x3d8/0x1580
[  252.232422][   T73]      ip6_route_info_create+0xf18/0x17d0
[  252.232422][   T73]      ip6_route_add+0x1c/0x140
[  252.232422][   T73]      addrconf_prefix_route+0x2a6/0x430
[  252.232422][   T73]      inet6_addr_add+0x4f8/0xa40
[  252.232422][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  252.232422][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  252.232422][   T73]      netlink_rcv_skb+0x130/0x360
[  252.232422][   T73]      netlink_unicast+0x449/0x710
[  252.232422][   T73]      netlink_sendmsg+0x723/0xbe0
[  252.232422][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  252.232422][   T73]      ___sys_sendmsg+0xee/0x170
[  252.232422][   T73]      __sys_sendmsg+0xcd/0x170
[  252.232422][   T73]      do_syscall_64+0xc6/0x1e0
[  252.232422][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  252.232422][   T73] 
[  252.234570][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  252.234570][   T73]      netdev_get_by_index+0x5e/0x80
[  252.234570][   T73]      fib6_nh_init+0x3d8/0x1580
[  252.234570][   T73]      ip6_route_info_create+0xf18/0x17d0
[  252.234570][   T73]      addrconf_f6i_alloc+0x315/0x560
[  252.234570][   T73]      ipv6_add_addr+0x411/0x2000
[  252.234570][   T73]      inet6_addr_add+0x30e/0xa40
[  252.234570][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  252.234570][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  252.234570][   T73]      netlink_rcv_skb+0x130/0x360
[  252.234570][   T73]      netlink_unicast+0x449/0x710
[  252.234570][   T73]      netlink_sendmsg+0x723/0xbe0
[  252.234570][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  252.234570][   T73]      ___sys_sendmsg+0xee/0x170
[  252.234570][   T73]      __sys_sendmsg+0xcd/0x170
[  252.234570][   T73]      do_syscall_64+0xc6/0x1e0
[  252.234570][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  252.234570][   T73] 
[  252.236718][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  252.236718][   T73]      netdev_get_by_index+0x5e/0x80
[  252.236718][   T73]      fib6_nh_init+0x3d8/0x1580
[  252.236718][   T73]      ip6_route_info_create+0xf18/0x17d0
[  252.236718][   T73]      ip6_route_add+0x1c/0x140
[  252.236718][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  252.236718][   T73]      addrconf_add_dev+0xe2/0x170
[  252.236718][   T73]      inet6_addr_add+0x12f/0xa40
[  252.236718][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  252.236718][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  252.236718][   T73]      netlink_rcv_skb+0x130/0x360
[  252.236718][   T73]      netlink_unicast+0x449/0x710
[  252.236718][   T73]      netlink_sendmsg+0x723/0xbe0
[  252.236718][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  252.236718][   T73]      ___sys_sendmsg+0xee/0x170
[  252.236718][   T73]      __sys_sendmsg+0xcd/0x170
[  252.236718][   T73]      do_syscall_64+0xc6/0x1e0
[  252.236718][   T73] 
[  252.238819][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  252.238819][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  252.238819][   T73]      ipv6_find_idev+0x102/0x170
[  252.238819][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  252.238819][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  252.238819][   T73]      netlink_rcv_skb+0x130/0x360
[  252.238819][   T73]      netlink_unicast+0x449/0x710
[  252.238819][   T73]      netlink_sendmsg+0x723/0xbe0
[  252.238819][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  252.238819][   T73]      ___sys_sendmsg+0xee/0x170
[  252.238819][   T73]      __sys_sendmsg+0xcd/0x170
[  252.238819][   T73]      do_syscall_64+0xc6/0x1e0
[  252.238819][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  252.238819][   T73] 
[  252.240399][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  252.240399][   T73]      neigh_parms_alloc+0x1e5/0x510
[  252.240399][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  252.240399][   T73]      ipv6_find_idev+0x102/0x170
[  252.240399][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  252.240399][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  252.240399][   T73]      netlink_rcv_skb+0x130/0x360
[  252.240399][   T73]      netlink_unicast+0x449/0x710
[  252.240399][   T73]      netlink_sendmsg+0x723/0xbe0
[  252.240399][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  252.240399][   T73]      ___sys_sendmsg+0xee/0x170
[  252.240399][   T73]      __sys_sendmsg+0xcd/0x170
[  252.240399][   T73]      do_syscall_64+0xc6/0x1e0
[  252.240399][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  252.240399][   T73] 
[  252.242131][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  252.242420][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  252.242420][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  252.242420][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  252.242420][   T73]      fib6_nh_init+0xa22/0x1580
[  252.242420][   T73]      ip6_route_info_create+0xf18/0x17d0
[  252.242420][   T73]      ip6_route_add+0x1c/0x140
[  252.242420][   T73]      inet6_rtm_newroute+0x104/0x110
[  252.242420][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  252.242420][   T73]      netlink_rcv_skb+0x130/0x360
[  252.242420][   T73]      netlink_unicast+0x449/0x710
[  252.242420][   T73]      netlink_sendmsg+0x723/0xbe0
[  252.242420][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  252.242420][   T73]      ___sys_sendmsg+0xee/0x170
[  252.242420][   T73]      __sys_sendmsg+0xcd/0x170
[  252.242420][   T73]      do_syscall_64+0xc6/0x1e0
[  252.242420][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  252.242420][   T73] 
[  252.244496][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  252.244496][   T73]      dst_init+0x84/0x4a0
[  252.244496][   T73]      dst_alloc+0x97/0x150
[  252.244496][   T73]      ip6_dst_alloc+0x23/0x90
[  252.244496][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  252.244496][   T73]      ip6_pol_route+0x56f/0x840
[  252.244496][   T73]      fib6_rule_lookup+0x456/0x630
[  252.244496][   T73]      ip6_route_input+0x59c/0xa50
[  252.244496][   T73]      ipv6_rcv+0x397/0x810
[  252.244496][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  252.244496][   T73]      process_backlog+0x101/0x620
[  252.244496][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  252.244496][   T73]      net_rx_action+0x495/0xbe0
[  252.244496][   T73]      __do_softirq+0x1b5/0x7f6
[  252.244496][   T73] 
[  252.246369][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  252.246369][   T73]      netdev_get_by_index+0x5e/0x80
[  252.246369][   T73]      fib6_nh_init+0x3d8/0x1580
[  252.246369][   T73]      ip6_route_info_create+0xf18/0x17d0
[  252.246369][   T73]      ip6_route_add+0x1c/0x140
[  252.246369][   T73]      addrconf_prefix_route+0x2a6/0x430
[  252.246369][   T73]      inet6_addr_add+0x4f8/0xa40
[  252.246369][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  252.246369][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  252.246369][   T73]      netlink_rcv_skb+0x130/0x360
[  252.246369][   T73]      netlink_unicast+0x449/0x710
[  252.246369][   T73]      netlink_sendmsg+0x723/0xbe0
[  252.246369][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  252.246369][   T73]      ___sys_sendmsg+0xee/0x170
[  252.246369][   T73]      __sys_sendmsg+0xcd/0x170
[  252.246369][   T73]      do_syscall_64+0xc6/0x1e0
[  252.246369][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  252.246369][   T73] 
[  252.248603][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  252.248603][   T73]      netdev_get_by_index+0x5e/0x80
[  252.248603][   T73]      fib6_nh_init+0x3d8/0x1580
[  252.248603][   T73]      ip6_route_info_create+0xf18/0x17d0
[  252.248603][   T73]      addrconf_f6i_alloc+0x315/0x560
[  252.248603][   T73]      ipv6_add_addr+0x411/0x2000
[  252.248603][   T73]      inet6_addr_add+0x30e/0xa40
[  252.248603][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  252.248603][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  252.248603][   T73]      netlink_rcv_skb+0x130/0x360
[  252.248603][   T73]      netlink_unicast+0x449/0x710
[  252.248603][   T73]      netlink_sendmsg+0x723/0xbe0
[  252.248603][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  252.248603][   T73]      ___sys_sendmsg+0xee/0x170
[  252.248603][   T73]      __sys_sendmsg+0xcd/0x170
[  252.248603][   T73]      do_syscall_64+0xc6/0x1e0
[  252.248603][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  252.248603][   T73] 
[  252.250851][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  252.250851][   T73]      netdev_get_by_index+0x5e/0x80
[  252.250851][   T73]      fib6_nh_init+0x3d8/0x1580
[  252.250851][   T73]      ip6_route_info_create+0xf18/0x17d0
[  252.250851][   T73]      ip6_route_add+0x1c/0x140
[  252.250851][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  252.250851][   T73]      addrconf_add_dev+0xe2/0x170
[  252.250851][   T73]      inet6_addr_add+0x12f/0xa40
[  252.250851][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  252.250851][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  252.250851][   T73]      netlink_rcv_skb+0x130/0x360
[  252.250851][   T73]      netlink_unicast+0x449/0x710
[  252.250851][   T73]      netlink_sendmsg+0x723/0xbe0
[  252.250851][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  252.250851][   T73]      ___sys_sendmsg+0xee/0x170
[  252.250851][   T73]      __sys_sendmsg+0xcd/0x170
[  252.250851][   T73]      do_syscall_64+0xc6/0x1e0
[  252.250851][   T73] 
[  252.253220][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  252.253220][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  252.253220][   T73]      ipv6_find_idev+0x102/0x170
[  252.253220][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  252.253220][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  252.253220][   T73]      netlink_rcv_skb+0x130/0x360
[  252.253220][   T73]      netlink_unicast+0x449/0x710
[  252.253220][   T73]      netlink_sendmsg+0x723/0xbe0
[  252.253220][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  252.253220][   T73]      ___sys_sendmsg+0xee/0x170
[  252.253220][   T73]      __sys_sendmsg+0xcd/0x170
[  252.253220][   T73]      do_syscall_64+0xc6/0x1e0
[  252.253220][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  252.253220][   T73] 
[  252.255043][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  252.255043][   T73]      neigh_parms_alloc+0x1e5/0x510
[  252.255043][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  252.255043][   T73]      ipv6_find_idev+0x102/0x170
[  252.255043][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  252.255043][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  252.255043][   T73]      netlink_rcv_skb+0x130/0x360
[  252.255043][   T73]      netlink_unicast+0x449/0x710
[  252.255043][   T73]      netlink_sendmsg+0x723/0xbe0
[  252.255043][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  252.255043][   T73]      ___sys_sendmsg+0xee/0x170
[  252.255043][   T73]      __sys_sendmsg+0xcd/0x170
[  252.255043][   T73]      do_syscall_64+0xc6/0x1e0
[  252.255043][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  252.255043][   T73] 
[  252.257024][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  252.257667][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  252.257667][   T73]      netdev_get_by_index+0x5e/0x80
[  252.257667][   T73]      fib6_nh_init+0x3d8/0x1580
[  252.257667][   T73]      ip6_route_info_create+0xf18/0x17d0
[  252.257667][   T73]      addrconf_f6i_alloc+0x265/0x560
[  252.257667][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  252.257667][   T73]      addrconf_join_anycast+0x1c0/0x220
[  252.257667][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  252.257667][   T73]      addrconf_dad_completed+0x12b/0xe20
[  252.257667][   T73]      addrconf_dad_begin+0x310/0x670
[  252.257667][   T73]      addrconf_dad_work+0x10b/0xab0
[  252.257667][   T73]      process_one_work+0x84d/0x18a0
[  252.257667][   T73]      worker_thread+0x587/0xd30
[  252.257667][   T73]      kthread+0x28a/0x350
[  252.257667][   T73]      ret_from_fork+0x31/0x70
[  252.257667][   T73]      ret_from_fork_asm+0x1a/0x30
[  252.257667][   T73] 
[  252.259867][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  252.259867][   T73]      netdev_get_by_index+0x5e/0x80
[  252.259867][   T73]      fib6_nh_init+0x3d8/0x1580
[  252.259867][   T73]      ip6_route_info_create+0xf18/0x17d0
[  252.259867][   T73]      ip6_route_add+0x1c/0x140
[  252.259867][   T73]      addrconf_prefix_route+0x2a6/0x430
[  252.259867][   T73]      inet6_addr_add+0x4f8/0xa40
[  252.259867][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  252.259867][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  252.259867][   T73]      netlink_rcv_skb+0x130/0x360
[  252.259867][   T73]      netlink_unicast+0x449/0x710
[  252.259867][   T73]      netlink_sendmsg+0x723/0xbe0
[  252.259867][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  252.259867][   T73]      ___sys_sendmsg+0xee/0x170
[  252.259867][   T73]      __sys_sendmsg+0xcd/0x170
[  252.259867][   T73]      do_syscall_64+0xc6/0x1e0
[  252.259867][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  252.259867][   T73] 
[  252.262136][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  252.262136][   T73]      netdev_get_by_index+0x5e/0x80
[  252.262136][   T73]      fib6_nh_init+0x3d8/0x1580
[  252.262136][   T73]      ip6_route_info_create+0xf18/0x17d0
[  252.262136][   T73]      addrconf_f6i_alloc+0x315/0x560
[  252.262136][   T73]      ipv6_add_addr+0x411/0x2000
[  252.262136][   T73]      inet6_addr_add+0x30e/0xa40
[  252.262136][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  252.262136][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  252.262136][   T73]      netlink_rcv_skb+0x130/0x360
[  252.262136][   T73]      netlink_unicast+0x449/0x710
[  252.262136][   T73]      netlink_sendmsg+0x723/0xbe0
[  252.262136][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  252.262136][   T73]      ___sys_sendmsg+0xee/0x170
[  252.262136][   T73]      __sys_sendmsg+0xcd/0x170
[  252.262136][   T73]      do_syscall_64+0xc6/0x1e0
[  252.262136][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  252.262136][   T73] 
[  252.264495][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  252.264495][   T73]      netdev_get_by_index+0x5e/0x80
[  252.264495][   T73]      fib6_nh_init+0x3d8/0x1580
[  252.264495][   T73]      ip6_route_info_create+0xf18/0x17d0
[  252.264495][   T73]      ip6_route_add+0x1c/0x140
[  252.264495][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  252.264495][   T73]      addrconf_add_dev+0xe2/0x170
[  252.264495][   T73]      inet6_addr_add+0x12f/0xa40
[  252.264495][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  252.264495][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  252.264495][   T73]      netlink_rcv_skb+0x130/0x360
[  252.264495][   T73]      netlink_unicast+0x449/0x710
[  252.264495][   T73]      netlink_sendmsg+0x723/0xbe0
[  252.264495][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  252.264495][   T73]      ___sys_sendmsg+0xee/0x170
[  252.264495][   T73]      __sys_sendmsg+0xcd/0x170
[  252.264495][   T73]      do_syscall_64+0xc6/0x1e0
[  252.264495][   T73] 
[  252.266690][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  252.266690][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  252.266690][   T73]      ipv6_find_idev+0x102/0x170
[  252.266690][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  252.266690][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  252.266690][   T73]      netlink_rcv_skb+0x130/0x360
[  252.266690][   T73]      netlink_unicast+0x449/0x710
[  252.266690][   T73]      netlink_sendmsg+0x723/0xbe0
[  252.266690][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  252.266690][   T73]      ___sys_sendmsg+0xee/0x170
[  252.266690][   T73]      __sys_sendmsg+0xcd/0x170
[  252.266690][   T73]      do_syscall_64+0xc6/0x1e0
[  252.266690][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  252.266690][   T73] 
[  252.268474][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  252.268474][   T73]      neigh_parms_alloc+0x1e5/0x510
[  252.268474][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  252.268474][   T73]      ipv6_find_idev+0x102/0x170
[  252.268474][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  252.268474][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  252.268474][   T73]      netlink_rcv_skb+0x130/0x360
[  252.268474][   T73]      netlink_unicast+0x449/0x710
[  252.268474][   T73]      netlink_sendmsg+0x723/0xbe0
[  252.268474][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  252.268474][   T73]      ___sys_sendmsg+0xee/0x170
[  252.268474][   T73]      __sys_sendmsg+0xcd/0x170
[  252.268474][   T73]      do_syscall_64+0xc6/0x1e0
[  252.268474][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  252.268474][   T73] 
[  262.511780][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  262.512373][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  262.512373][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  262.512373][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  262.512373][   T73]      fib6_nh_init+0xa22/0x1580
[  262.512373][   T73]      ip6_route_info_create+0xf18/0x17d0
[  262.512373][   T73]      ip6_route_add+0x1c/0x140
[  262.512373][   T73]      inet6_rtm_newroute+0x104/0x110
[  262.512373][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  262.512373][   T73]      netlink_rcv_skb+0x130/0x360
[  262.512373][   T73]      netlink_unicast+0x449/0x710
[  262.512373][   T73]      netlink_sendmsg+0x723/0xbe0
[  262.512373][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  262.512373][   T73]      ___sys_sendmsg+0xee/0x170
[  262.512373][   T73]      __sys_sendmsg+0xcd/0x170
[  262.512373][   T73]      do_syscall_64+0xc6/0x1e0
[  262.512373][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  262.512373][   T73] 
[  262.514976][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  262.514976][   T73]      dst_init+0x84/0x4a0
[  262.514976][   T73]      dst_alloc+0x97/0x150
[  262.514976][   T73]      ip6_dst_alloc+0x23/0x90
[  262.514976][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  262.514976][   T73]      ip6_pol_route+0x56f/0x840
[  262.514976][   T73]      fib6_rule_lookup+0x456/0x630
[  262.514976][   T73]      ip6_route_input+0x59c/0xa50
[  262.514976][   T73]      ipv6_rcv+0x397/0x810
[  262.514976][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  262.514976][   T73]      process_backlog+0x101/0x620
[  262.514976][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  262.514976][   T73]      net_rx_action+0x495/0xbe0
[  262.514976][   T73]      __do_softirq+0x1b5/0x7f6
[  262.514976][   T73] 
[  262.517111][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  262.517111][   T73]      netdev_get_by_index+0x5e/0x80
[  262.517111][   T73]      fib6_nh_init+0x3d8/0x1580
[  262.517111][   T73]      ip6_route_info_create+0xf18/0x17d0
[  262.517111][   T73]      ip6_route_add+0x1c/0x140
[  262.517111][   T73]      addrconf_prefix_route+0x2a6/0x430
[  262.517111][   T73]      inet6_addr_add+0x4f8/0xa40
[  262.517111][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  262.517111][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  262.517111][   T73]      netlink_rcv_skb+0x130/0x360
[  262.517111][   T73]      netlink_unicast+0x449/0x710
[  262.517111][   T73]      netlink_sendmsg+0x723/0xbe0
[  262.517111][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  262.517111][   T73]      ___sys_sendmsg+0xee/0x170
[  262.517111][   T73]      __sys_sendmsg+0xcd/0x170
[  262.517111][   T73]      do_syscall_64+0xc6/0x1e0
[  262.517111][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  262.517111][   T73] 
[  262.520080][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  262.520080][   T73]      netdev_get_by_index+0x5e/0x80
[  262.520080][   T73]      fib6_nh_init+0x3d8/0x1580
[  262.520080][   T73]      ip6_route_info_create+0xf18/0x17d0
[  262.520080][   T73]      addrconf_f6i_alloc+0x315/0x560
[  262.520080][   T73]      ipv6_add_addr+0x411/0x2000
[  262.520080][   T73]      inet6_addr_add+0x30e/0xa40
[  262.520080][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  262.520080][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  262.520080][   T73]      netlink_rcv_skb+0x130/0x360
[  262.520080][   T73]      netlink_unicast+0x449/0x710
[  262.520080][   T73]      netlink_sendmsg+0x723/0xbe0
[  262.520080][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  262.520080][   T73]      ___sys_sendmsg+0xee/0x170
[  262.520080][   T73]      __sys_sendmsg+0xcd/0x170
[  262.520080][   T73]      do_syscall_64+0xc6/0x1e0
[  262.520080][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  262.520080][   T73] 
[  262.522662][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  262.522662][   T73]      netdev_get_by_index+0x5e/0x80
[  262.522662][   T73]      fib6_nh_init+0x3d8/0x1580
[  262.522662][   T73]      ip6_route_info_create+0xf18/0x17d0
[  262.522662][   T73]      ip6_route_add+0x1c/0x140
[  262.522662][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  262.522662][   T73]      addrconf_add_dev+0xe2/0x170
[  262.522662][   T73]      inet6_addr_add+0x12f/0xa40
[  262.522662][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  262.522662][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  262.522662][   T73]      netlink_rcv_skb+0x130/0x360
[  262.522662][   T73]      netlink_unicast+0x449/0x710
[  262.522662][   T73]      netlink_sendmsg+0x723/0xbe0
[  262.522662][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  262.522662][   T73]      ___sys_sendmsg+0xee/0x170
[  262.522662][   T73]      __sys_sendmsg+0xcd/0x170
[  262.522662][   T73]      do_syscall_64+0xc6/0x1e0
[  262.522662][   T73] 
[  262.525277][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  262.525277][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  262.525277][   T73]      ipv6_find_idev+0x102/0x170
[  262.525277][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  262.525277][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  262.525277][   T73]      netlink_rcv_skb+0x130/0x360
[  262.525277][   T73]      netlink_unicast+0x449/0x710
[  262.525277][   T73]      netlink_sendmsg+0x723/0xbe0
[  262.525277][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  262.525277][   T73]      ___sys_sendmsg+0xee/0x170
[  262.525277][   T73]      __sys_sendmsg+0xcd/0x170
[  262.525277][   T73]      do_syscall_64+0xc6/0x1e0
[  262.525277][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  262.525277][   T73] 
[  262.526990][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  262.526990][   T73]      neigh_parms_alloc+0x1e5/0x510
[  262.526990][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  262.526990][   T73]      ipv6_find_idev+0x102/0x170
[  262.526990][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  262.526990][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  262.526990][   T73]      netlink_rcv_skb+0x130/0x360
[  262.526990][   T73]      netlink_unicast+0x449/0x710
[  262.526990][   T73]      netlink_sendmsg+0x723/0xbe0
[  262.526990][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  262.526990][   T73]      ___sys_sendmsg+0xee/0x170
[  262.526990][   T73]      __sys_sendmsg+0xcd/0x170
[  262.526990][   T73]      do_syscall_64+0xc6/0x1e0
[  262.526990][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  262.526990][   T73] 
[  262.528882][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  262.529184][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  262.529184][   T73]      netdev_get_by_index+0x5e/0x80
[  262.529184][   T73]      fib6_nh_init+0x3d8/0x1580
[  262.529184][   T73]      ip6_route_info_create+0xf18/0x17d0
[  262.529184][   T73]      addrconf_f6i_alloc+0x265/0x560
[  262.529184][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  262.529184][   T73]      addrconf_join_anycast+0x1c0/0x220
[  262.529184][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  262.529184][   T73]      addrconf_dad_completed+0x12b/0xe20
[  262.529184][   T73]      addrconf_dad_begin+0x310/0x670
[  262.529184][   T73]      addrconf_dad_work+0x10b/0xab0
[  262.529184][   T73]      process_one_work+0x84d/0x18a0
[  262.529184][   T73]      worker_thread+0x587/0xd30
[  262.529184][   T73]      kthread+0x28a/0x350
[  262.529184][   T73]      ret_from_fork+0x31/0x70
[  262.529184][   T73]      ret_from_fork_asm+0x1a/0x30
[  262.529184][   T73] 
[  262.531156][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  262.531156][   T73]      netdev_get_by_index+0x5e/0x80
[  262.531156][   T73]      fib6_nh_init+0x3d8/0x1580
[  262.531156][   T73]      ip6_route_info_create+0xf18/0x17d0
[  262.531156][   T73]      ip6_route_add+0x1c/0x140
[  262.531156][   T73]      addrconf_prefix_route+0x2a6/0x430
[  262.531156][   T73]      inet6_addr_add+0x4f8/0xa40
[  262.531156][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  262.531156][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  262.531156][   T73]      netlink_rcv_skb+0x130/0x360
[  262.531156][   T73]      netlink_unicast+0x449/0x710
[  262.531156][   T73]      netlink_sendmsg+0x723/0xbe0
[  262.531156][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  262.531156][   T73]      ___sys_sendmsg+0xee/0x170
[  262.531156][   T73]      __sys_sendmsg+0xcd/0x170
[  262.531156][   T73]      do_syscall_64+0xc6/0x1e0
[  262.531156][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  262.531156][   T73] 
[  262.533318][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  262.533318][   T73]      netdev_get_by_index+0x5e/0x80
[  262.533318][   T73]      fib6_nh_init+0x3d8/0x1580
[  262.533318][   T73]      ip6_route_info_create+0xf18/0x17d0
[  262.533318][   T73]      addrconf_f6i_alloc+0x315/0x560
[  262.533318][   T73]      ipv6_add_addr+0x411/0x2000
[  262.533318][   T73]      inet6_addr_add+0x30e/0xa40
[  262.533318][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  262.533318][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  262.533318][   T73]      netlink_rcv_skb+0x130/0x360
[  262.533318][   T73]      netlink_unicast+0x449/0x710
[  262.533318][   T73]      netlink_sendmsg+0x723/0xbe0
[  262.533318][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  262.533318][   T73]      ___sys_sendmsg+0xee/0x170
[  262.533318][   T73]      __sys_sendmsg+0xcd/0x170
[  262.533318][   T73]      do_syscall_64+0xc6/0x1e0
[  262.533318][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  262.533318][   T73] 
[  262.535401][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  262.535401][   T73]      netdev_get_by_index+0x5e/0x80
[  262.535401][   T73]      fib6_nh_init+0x3d8/0x1580
[  262.535401][   T73]      ip6_route_info_create+0xf18/0x17d0
[  262.535401][   T73]      ip6_route_add+0x1c/0x140
[  262.535401][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  262.535401][   T73]      addrconf_add_dev+0xe2/0x170
[  262.535401][   T73]      inet6_addr_add+0x12f/0xa40
[  262.535401][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  262.535401][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  262.535401][   T73]      netlink_rcv_skb+0x130/0x360
[  262.535401][   T73]      netlink_unicast+0x449/0x710
[  262.535401][   T73]      netlink_sendmsg+0x723/0xbe0
[  262.535401][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  262.535401][   T73]      ___sys_sendmsg+0xee/0x170
[  262.535401][   T73]      __sys_sendmsg+0xcd/0x170
[  262.535401][   T73]      do_syscall_64+0xc6/0x1e0
[  262.535401][   T73] 
[  262.537408][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  262.537408][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  262.537408][   T73]      ipv6_find_idev+0x102/0x170
[  262.537408][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  262.537408][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  262.537408][   T73]      netlink_rcv_skb+0x130/0x360
[  262.537408][   T73]      netlink_unicast+0x449/0x710
[  262.537408][   T73]      netlink_sendmsg+0x723/0xbe0
[  262.537408][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  262.537408][   T73]      ___sys_sendmsg+0xee/0x170
[  262.537408][   T73]      __sys_sendmsg+0xcd/0x170
[  262.537408][   T73]      do_syscall_64+0xc6/0x1e0
[  262.537408][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  262.537408][   T73] 
[  262.538980][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  262.538980][   T73]      neigh_parms_alloc+0x1e5/0x510
[  262.538980][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  262.538980][   T73]      ipv6_find_idev+0x102/0x170
[  262.538980][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  262.538980][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  262.538980][   T73]      netlink_rcv_skb+0x130/0x360
[  262.538980][   T73]      netlink_unicast+0x449/0x710
[  262.538980][   T73]      netlink_sendmsg+0x723/0xbe0
[  262.538980][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  262.538980][   T73]      ___sys_sendmsg+0xee/0x170
[  262.538980][   T73]      __sys_sendmsg+0xcd/0x170
[  262.538980][   T73]      do_syscall_64+0xc6/0x1e0
[  262.538980][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  262.538980][   T73] 
[  262.540721][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  262.541015][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  262.541015][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  262.541015][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  262.541015][   T73]      fib6_nh_init+0xa22/0x1580
[  262.541015][   T73]      ip6_route_info_create+0xf18/0x17d0
[  262.541015][   T73]      ip6_route_add+0x1c/0x140
[  262.541015][   T73]      inet6_rtm_newroute+0x104/0x110
[  262.541015][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  262.541015][   T73]      netlink_rcv_skb+0x130/0x360
[  262.541015][   T73]      netlink_unicast+0x449/0x710
[  262.541015][   T73]      netlink_sendmsg+0x723/0xbe0
[  262.541015][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  262.541015][   T73]      ___sys_sendmsg+0xee/0x170
[  262.541015][   T73]      __sys_sendmsg+0xcd/0x170
[  262.541015][   T73]      do_syscall_64+0xc6/0x1e0
[  262.541015][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  262.541015][   T73] 
[  262.543103][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  262.543103][   T73]      dst_init+0x84/0x4a0
[  262.543103][   T73]      dst_alloc+0x97/0x150
[  262.543103][   T73]      ip6_dst_alloc+0x23/0x90
[  262.543103][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  262.543103][   T73]      ip6_pol_route+0x56f/0x840
[  262.543103][   T73]      fib6_rule_lookup+0x456/0x630
[  262.543103][   T73]      ip6_route_input+0x59c/0xa50
[  262.543103][   T73]      ipv6_rcv+0x397/0x810
[  262.543103][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  262.543103][   T73]      process_backlog+0x101/0x620
[  262.543103][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  262.543103][   T73]      net_rx_action+0x495/0xbe0
[  262.543103][   T73]      __do_softirq+0x1b5/0x7f6
[  262.543103][   T73] 
[  262.545020][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  262.545020][   T73]      netdev_get_by_index+0x5e/0x80
[  262.545020][   T73]      fib6_nh_init+0x3d8/0x1580
[  262.545020][   T73]      ip6_route_info_create+0xf18/0x17d0
[  262.545020][   T73]      ip6_route_add+0x1c/0x140
[  262.545020][   T73]      addrconf_prefix_route+0x2a6/0x430
[  262.545020][   T73]      inet6_addr_add+0x4f8/0xa40
[  262.545020][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  262.545020][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  262.545020][   T73]      netlink_rcv_skb+0x130/0x360
[  262.545020][   T73]      netlink_unicast+0x449/0x710
[  262.545020][   T73]      netlink_sendmsg+0x723/0xbe0
[  262.545020][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  262.545020][   T73]      ___sys_sendmsg+0xee/0x170
[  262.545020][   T73]      __sys_sendmsg+0xcd/0x170
[  262.545020][   T73]      do_syscall_64+0xc6/0x1e0
[  262.545020][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  262.545020][   T73] 
[  262.547285][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  262.547285][   T73]      netdev_get_by_index+0x5e/0x80
[  262.547285][   T73]      fib6_nh_init+0x3d8/0x1580
[  262.547285][   T73]      ip6_route_info_create+0xf18/0x17d0
[  262.547285][   T73]      addrconf_f6i_alloc+0x315/0x560
[  262.547285][   T73]      ipv6_add_addr+0x411/0x2000
[  262.547285][   T73]      inet6_addr_add+0x30e/0xa40
[  262.547285][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  262.547285][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  262.547285][   T73]      netlink_rcv_skb+0x130/0x360
[  262.547285][   T73]      netlink_unicast+0x449/0x710
[  262.547285][   T73]      netlink_sendmsg+0x723/0xbe0
[  262.547285][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  262.547285][   T73]      ___sys_sendmsg+0xee/0x170
[  262.547285][   T73]      __sys_sendmsg+0xcd/0x170
[  262.547285][   T73]      do_syscall_64+0xc6/0x1e0
[  262.547285][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  262.547285][   T73] 
[  262.549527][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  262.549527][   T73]      netdev_get_by_index+0x5e/0x80
[  262.549527][   T73]      fib6_nh_init+0x3d8/0x1580
[  262.549527][   T73]      ip6_route_info_create+0xf18/0x17d0
[  262.549527][   T73]      ip6_route_add+0x1c/0x140
[  262.549527][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  262.549527][   T73]      addrconf_add_dev+0xe2/0x170
[  262.549527][   T73]      inet6_addr_add+0x12f/0xa40
[  262.549527][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  262.549527][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  262.549527][   T73]      netlink_rcv_skb+0x130/0x360
[  262.549527][   T73]      netlink_unicast+0x449/0x710
[  262.549527][   T73]      netlink_sendmsg+0x723/0xbe0
[  262.549527][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  262.549527][   T73]      ___sys_sendmsg+0xee/0x170
[  262.549527][   T73]      __sys_sendmsg+0xcd/0x170
[  262.549527][   T73]      do_syscall_64+0xc6/0x1e0
[  262.549527][   T73] 
[  262.551741][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  262.551741][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  262.551741][   T73]      ipv6_find_idev+0x102/0x170
[  262.551741][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  262.551741][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  262.551741][   T73]      netlink_rcv_skb+0x130/0x360
[  262.551741][   T73]      netlink_unicast+0x449/0x710
[  262.551741][   T73]      netlink_sendmsg+0x723/0xbe0
[  262.551741][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  262.551741][   T73]      ___sys_sendmsg+0xee/0x170
[  262.551741][   T73]      __sys_sendmsg+0xcd/0x170
[  262.551741][   T73]      do_syscall_64+0xc6/0x1e0
[  262.551741][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  262.551741][   T73] 
[  262.553516][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  262.553516][   T73]      neigh_parms_alloc+0x1e5/0x510
[  262.553516][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  262.553516][   T73]      ipv6_find_idev+0x102/0x170
[  262.553516][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  262.553516][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  262.553516][   T73]      netlink_rcv_skb+0x130/0x360
[  262.553516][   T73]      netlink_unicast+0x449/0x710
[  262.553516][   T73]      netlink_sendmsg+0x723/0xbe0
[  262.553516][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  262.553516][   T73]      ___sys_sendmsg+0xee/0x170
[  262.553516][   T73]      __sys_sendmsg+0xcd/0x170
[  262.553516][   T73]      do_syscall_64+0xc6/0x1e0
[  262.553516][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  262.553516][   T73] 
[  262.555411][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  262.555703][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  262.555703][   T73]      netdev_get_by_index+0x5e/0x80
[  262.555703][   T73]      fib6_nh_init+0x3d8/0x1580
[  262.555703][   T73]      ip6_route_info_create+0xf18/0x17d0
[  262.555703][   T73]      addrconf_f6i_alloc+0x265/0x560
[  262.555703][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  262.555703][   T73]      addrconf_join_anycast+0x1c0/0x220
[  262.555703][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  262.555703][   T73]      addrconf_dad_completed+0x12b/0xe20
[  262.555703][   T73]      addrconf_dad_begin+0x310/0x670
[  262.555703][   T73]      addrconf_dad_work+0x10b/0xab0
[  262.555703][   T73]      process_one_work+0x84d/0x18a0
[  262.555703][   T73]      worker_thread+0x587/0xd30
[  262.555703][   T73]      kthread+0x28a/0x350
[  262.555703][   T73]      ret_from_fork+0x31/0x70
[  262.555703][   T73]      ret_from_fork_asm+0x1a/0x30
[  262.555703][   T73] 
[  262.557859][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  262.557859][   T73]      netdev_get_by_index+0x5e/0x80
[  262.557859][   T73]      fib6_nh_init+0x3d8/0x1580
[  262.557859][   T73]      ip6_route_info_create+0xf18/0x17d0
[  262.557859][   T73]      ip6_route_add+0x1c/0x140
[  262.557859][   T73]      addrconf_prefix_route+0x2a6/0x430
[  262.557859][   T73]      inet6_addr_add+0x4f8/0xa40
[  262.557859][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  262.557859][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  262.557859][   T73]      netlink_rcv_skb+0x130/0x360
[  262.557859][   T73]      netlink_unicast+0x449/0x710
[  262.557859][   T73]      netlink_sendmsg+0x723/0xbe0
[  262.557859][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  262.557859][   T73]      ___sys_sendmsg+0xee/0x170
[  262.557859][   T73]      __sys_sendmsg+0xcd/0x170
[  262.557859][   T73]      do_syscall_64+0xc6/0x1e0
[  262.557859][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  262.557859][   T73] 
[  262.560104][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  262.560104][   T73]      netdev_get_by_index+0x5e/0x80
[  262.560104][   T73]      fib6_nh_init+0x3d8/0x1580
[  262.560104][   T73]      ip6_route_info_create+0xf18/0x17d0
[  262.560104][   T73]      addrconf_f6i_alloc+0x315/0x560
[  262.560104][   T73]      ipv6_add_addr+0x411/0x2000
[  262.560104][   T73]      inet6_addr_add+0x30e/0xa40
[  262.560104][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  262.560104][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  262.560104][   T73]      netlink_rcv_skb+0x130/0x360
[  262.560104][   T73]      netlink_unicast+0x449/0x710
[  262.560104][   T73]      netlink_sendmsg+0x723/0xbe0
[  262.560104][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  262.560104][   T73]      ___sys_sendmsg+0xee/0x170
[  262.560104][   T73]      __sys_sendmsg+0xcd/0x170
[  262.560104][   T73]      do_syscall_64+0xc6/0x1e0
[  262.560104][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  262.560104][   T73] 
[  262.562405][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  262.562405][   T73]      netdev_get_by_index+0x5e/0x80
[  262.562405][   T73]      fib6_nh_init+0x3d8/0x1580
[  262.562405][   T73]      ip6_route_info_create+0xf18/0x17d0
[  262.562405][   T73]      ip6_route_add+0x1c/0x140
[  262.562405][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  262.562405][   T73]      addrconf_add_dev+0xe2/0x170
[  262.562405][   T73]      inet6_addr_add+0x12f/0xa40
[  262.562405][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  262.562405][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  262.562405][   T73]      netlink_rcv_skb+0x130/0x360
[  262.562405][   T73]      netlink_unicast+0x449/0x710
[  262.562405][   T73]      netlink_sendmsg+0x723/0xbe0
[  262.562405][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  262.562405][   T73]      ___sys_sendmsg+0xee/0x170
[  262.562405][   T73]      __sys_sendmsg+0xcd/0x170
[  262.562405][   T73]      do_syscall_64+0xc6/0x1e0
[  262.562405][   T73] 
[  262.564569][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  262.564569][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  262.564569][   T73]      ipv6_find_idev+0x102/0x170
[  262.564569][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  262.564569][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  262.564569][   T73]      netlink_rcv_skb+0x130/0x360
[  262.564569][   T73]      netlink_unicast+0x449/0x710
[  262.564569][   T73]      netlink_sendmsg+0x723/0xbe0
[  262.564569][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  262.564569][   T73]      ___sys_sendmsg+0xee/0x170
[  262.564569][   T73]      __sys_sendmsg+0xcd/0x170
[  262.564569][   T73]      do_syscall_64+0xc6/0x1e0
[  262.564569][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  262.564569][   T73] 
[  262.566283][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  262.566283][   T73]      neigh_parms_alloc+0x1e5/0x510
[  262.566283][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  262.566283][   T73]      ipv6_find_idev+0x102/0x170
[  262.566283][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  262.566283][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  262.566283][   T73]      netlink_rcv_skb+0x130/0x360
[  262.566283][   T73]      netlink_unicast+0x449/0x710
[  262.566283][   T73]      netlink_sendmsg+0x723/0xbe0
[  262.566283][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  262.566283][   T73]      ___sys_sendmsg+0xee/0x170
[  262.566283][   T73]      __sys_sendmsg+0xcd/0x170
[  262.566283][   T73]      do_syscall_64+0xc6/0x1e0
[  262.566283][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  262.566283][   T73] 
[  272.807785][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  272.808255][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  272.808255][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  272.808255][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  272.808255][   T73]      fib6_nh_init+0xa22/0x1580
[  272.808255][   T73]      ip6_route_info_create+0xf18/0x17d0
[  272.808255][   T73]      ip6_route_add+0x1c/0x140
[  272.808255][   T73]      inet6_rtm_newroute+0x104/0x110
[  272.808255][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  272.808255][   T73]      netlink_rcv_skb+0x130/0x360
[  272.808255][   T73]      netlink_unicast+0x449/0x710
[  272.808255][   T73]      netlink_sendmsg+0x723/0xbe0
[  272.808255][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  272.808255][   T73]      ___sys_sendmsg+0xee/0x170
[  272.808255][   T73]      __sys_sendmsg+0xcd/0x170
[  272.808255][   T73]      do_syscall_64+0xc6/0x1e0
[  272.808255][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  272.808255][   T73] 
[  272.810224][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  272.810224][   T73]      dst_init+0x84/0x4a0
[  272.810224][   T73]      dst_alloc+0x97/0x150
[  272.810224][   T73]      ip6_dst_alloc+0x23/0x90
[  272.810224][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  272.810224][   T73]      ip6_pol_route+0x56f/0x840
[  272.810224][   T73]      fib6_rule_lookup+0x456/0x630
[  272.810224][   T73]      ip6_route_input+0x59c/0xa50
[  272.810224][   T73]      ipv6_rcv+0x397/0x810
[  272.810224][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  272.810224][   T73]      process_backlog+0x101/0x620
[  272.810224][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  272.810224][   T73]      net_rx_action+0x495/0xbe0
[  272.810224][   T73]      __do_softirq+0x1b5/0x7f6
[  272.810224][   T73] 
[  272.811966][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  272.811966][   T73]      netdev_get_by_index+0x5e/0x80
[  272.811966][   T73]      fib6_nh_init+0x3d8/0x1580
[  272.811966][   T73]      ip6_route_info_create+0xf18/0x17d0
[  272.811966][   T73]      ip6_route_add+0x1c/0x140
[  272.811966][   T73]      addrconf_prefix_route+0x2a6/0x430
[  272.811966][   T73]      inet6_addr_add+0x4f8/0xa40
[  272.811966][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  272.811966][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  272.811966][   T73]      netlink_rcv_skb+0x130/0x360
[  272.811966][   T73]      netlink_unicast+0x449/0x710
[  272.811966][   T73]      netlink_sendmsg+0x723/0xbe0
[  272.811966][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  272.811966][   T73]      ___sys_sendmsg+0xee/0x170
[  272.811966][   T73]      __sys_sendmsg+0xcd/0x170
[  272.811966][   T73]      do_syscall_64+0xc6/0x1e0
[  272.811966][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  272.811966][   T73] 
[  272.814074][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  272.814074][   T73]      netdev_get_by_index+0x5e/0x80
[  272.814074][   T73]      fib6_nh_init+0x3d8/0x1580
[  272.814074][   T73]      ip6_route_info_create+0xf18/0x17d0
[  272.814074][   T73]      addrconf_f6i_alloc+0x315/0x560
[  272.814074][   T73]      ipv6_add_addr+0x411/0x2000
[  272.814074][   T73]      inet6_addr_add+0x30e/0xa40
[  272.814074][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  272.814074][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  272.814074][   T73]      netlink_rcv_skb+0x130/0x360
[  272.814074][   T73]      netlink_unicast+0x449/0x710
[  272.814074][   T73]      netlink_sendmsg+0x723/0xbe0
[  272.814074][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  272.814074][   T73]      ___sys_sendmsg+0xee/0x170
[  272.814074][   T73]      __sys_sendmsg+0xcd/0x170
[  272.814074][   T73]      do_syscall_64+0xc6/0x1e0
[  272.814074][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  272.814074][   T73] 
[  272.816074][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  272.816074][   T73]      netdev_get_by_index+0x5e/0x80
[  272.816074][   T73]      fib6_nh_init+0x3d8/0x1580
[  272.816074][   T73]      ip6_route_info_create+0xf18/0x17d0
[  272.816074][   T73]      ip6_route_add+0x1c/0x140
[  272.816074][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  272.816074][   T73]      addrconf_add_dev+0xe2/0x170
[  272.816074][   T73]      inet6_addr_add+0x12f/0xa40
[  272.816074][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  272.816074][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  272.816074][   T73]      netlink_rcv_skb+0x130/0x360
[  272.816074][   T73]      netlink_unicast+0x449/0x710
[  272.816074][   T73]      netlink_sendmsg+0x723/0xbe0
[  272.816074][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  272.816074][   T73]      ___sys_sendmsg+0xee/0x170
[  272.816074][   T73]      __sys_sendmsg+0xcd/0x170
[  272.816074][   T73]      do_syscall_64+0xc6/0x1e0
[  272.816074][   T73] 
[  272.818042][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  272.818042][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  272.818042][   T73]      ipv6_find_idev+0x102/0x170
[  272.818042][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  272.818042][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  272.818042][   T73]      netlink_rcv_skb+0x130/0x360
[  272.818042][   T73]      netlink_unicast+0x449/0x710
[  272.818042][   T73]      netlink_sendmsg+0x723/0xbe0
[  272.818042][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  272.818042][   T73]      ___sys_sendmsg+0xee/0x170
[  272.818042][   T73]      __sys_sendmsg+0xcd/0x170
[  272.818042][   T73]      do_syscall_64+0xc6/0x1e0
[  272.818042][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  272.818042][   T73] 
[  272.819638][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  272.819638][   T73]      neigh_parms_alloc+0x1e5/0x510
[  272.819638][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  272.819638][   T73]      ipv6_find_idev+0x102/0x170
[  272.819638][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  272.819638][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  272.819638][   T73]      netlink_rcv_skb+0x130/0x360
[  272.819638][   T73]      netlink_unicast+0x449/0x710
[  272.819638][   T73]      netlink_sendmsg+0x723/0xbe0
[  272.819638][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  272.819638][   T73]      ___sys_sendmsg+0xee/0x170
[  272.819638][   T73]      __sys_sendmsg+0xcd/0x170
[  272.819638][   T73]      do_syscall_64+0xc6/0x1e0
[  272.819638][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  272.819638][   T73] 
[  272.821444][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  272.821756][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  272.821756][   T73]      netdev_get_by_index+0x5e/0x80
[  272.821756][   T73]      fib6_nh_init+0x3d8/0x1580
[  272.821756][   T73]      ip6_route_info_create+0xf18/0x17d0
[  272.821756][   T73]      addrconf_f6i_alloc+0x265/0x560
[  272.821756][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  272.821756][   T73]      addrconf_join_anycast+0x1c0/0x220
[  272.821756][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  272.821756][   T73]      addrconf_dad_completed+0x12b/0xe20
[  272.821756][   T73]      addrconf_dad_begin+0x310/0x670
[  272.821756][   T73]      addrconf_dad_work+0x10b/0xab0
[  272.821756][   T73]      process_one_work+0x84d/0x18a0
[  272.821756][   T73]      worker_thread+0x587/0xd30
[  272.821756][   T73]      kthread+0x28a/0x350
[  272.821756][   T73]      ret_from_fork+0x31/0x70
[  272.821756][   T73]      ret_from_fork_asm+0x1a/0x30
[  272.821756][   T73] 
[  272.823668][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  272.823668][   T73]      netdev_get_by_index+0x5e/0x80
[  272.823668][   T73]      fib6_nh_init+0x3d8/0x1580
[  272.823668][   T73]      ip6_route_info_create+0xf18/0x17d0
[  272.823668][   T73]      ip6_route_add+0x1c/0x140
[  272.823668][   T73]      addrconf_prefix_route+0x2a6/0x430
[  272.823668][   T73]      inet6_addr_add+0x4f8/0xa40
[  272.823668][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  272.823668][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  272.823668][   T73]      netlink_rcv_skb+0x130/0x360
[  272.823668][   T73]      netlink_unicast+0x449/0x710
[  272.823668][   T73]      netlink_sendmsg+0x723/0xbe0
[  272.823668][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  272.823668][   T73]      ___sys_sendmsg+0xee/0x170
[  272.823668][   T73]      __sys_sendmsg+0xcd/0x170
[  272.823668][   T73]      do_syscall_64+0xc6/0x1e0
[  272.823668][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  272.823668][   T73] 
[  272.825756][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  272.825756][   T73]      netdev_get_by_index+0x5e/0x80
[  272.825756][   T73]      fib6_nh_init+0x3d8/0x1580
[  272.825756][   T73]      ip6_route_info_create+0xf18/0x17d0
[  272.825756][   T73]      addrconf_f6i_alloc+0x315/0x560
[  272.825756][   T73]      ipv6_add_addr+0x411/0x2000
[  272.825756][   T73]      inet6_addr_add+0x30e/0xa40
[  272.825756][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  272.825756][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  272.825756][   T73]      netlink_rcv_skb+0x130/0x360
[  272.825756][   T73]      netlink_unicast+0x449/0x710
[  272.825756][   T73]      netlink_sendmsg+0x723/0xbe0
[  272.825756][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  272.825756][   T73]      ___sys_sendmsg+0xee/0x170
[  272.825756][   T73]      __sys_sendmsg+0xcd/0x170
[  272.825756][   T73]      do_syscall_64+0xc6/0x1e0
[  272.825756][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  272.825756][   T73] 
[  272.827826][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  272.827826][   T73]      netdev_get_by_index+0x5e/0x80
[  272.827826][   T73]      fib6_nh_init+0x3d8/0x1580
[  272.827826][   T73]      ip6_route_info_create+0xf18/0x17d0
[  272.827826][   T73]      ip6_route_add+0x1c/0x140
[  272.827826][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  272.827826][   T73]      addrconf_add_dev+0xe2/0x170
[  272.827826][   T73]      inet6_addr_add+0x12f/0xa40
[  272.827826][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  272.827826][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  272.827826][   T73]      netlink_rcv_skb+0x130/0x360
[  272.827826][   T73]      netlink_unicast+0x449/0x710
[  272.827826][   T73]      netlink_sendmsg+0x723/0xbe0
[  272.827826][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  272.827826][   T73]      ___sys_sendmsg+0xee/0x170
[  272.827826][   T73]      __sys_sendmsg+0xcd/0x170
[  272.827826][   T73]      do_syscall_64+0xc6/0x1e0
[  272.827826][   T73] 
[  272.830084][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  272.830084][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  272.830084][   T73]      ipv6_find_idev+0x102/0x170
[  272.830084][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  272.830084][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  272.830084][   T73]      netlink_rcv_skb+0x130/0x360
[  272.830084][   T73]      netlink_unicast+0x449/0x710
[  272.830084][   T73]      netlink_sendmsg+0x723/0xbe0
[  272.830084][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  272.830084][   T73]      ___sys_sendmsg+0xee/0x170
[  272.830084][   T73]      __sys_sendmsg+0xcd/0x170
[  272.830084][   T73]      do_syscall_64+0xc6/0x1e0
[  272.830084][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  272.830084][   T73] 
[  272.831777][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  272.831777][   T73]      neigh_parms_alloc+0x1e5/0x510
[  272.831777][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  272.831777][   T73]      ipv6_find_idev+0x102/0x170
[  272.831777][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  272.831777][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  272.831777][   T73]      netlink_rcv_skb+0x130/0x360
[  272.831777][   T73]      netlink_unicast+0x449/0x710
[  272.831777][   T73]      netlink_sendmsg+0x723/0xbe0
[  272.831777][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  272.831777][   T73]      ___sys_sendmsg+0xee/0x170
[  272.831777][   T73]      __sys_sendmsg+0xcd/0x170
[  272.831777][   T73]      do_syscall_64+0xc6/0x1e0
[  272.831777][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  272.831777][   T73] 
[  272.833671][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  272.833964][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  272.833964][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  272.833964][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  272.833964][   T73]      fib6_nh_init+0xa22/0x1580
[  272.833964][   T73]      ip6_route_info_create+0xf18/0x17d0
[  272.833964][   T73]      ip6_route_add+0x1c/0x140
[  272.833964][   T73]      inet6_rtm_newroute+0x104/0x110
[  272.833964][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  272.833964][   T73]      netlink_rcv_skb+0x130/0x360
[  272.833964][   T73]      netlink_unicast+0x449/0x710
[  272.833964][   T73]      netlink_sendmsg+0x723/0xbe0
[  272.833964][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  272.833964][   T73]      ___sys_sendmsg+0xee/0x170
[  272.833964][   T73]      __sys_sendmsg+0xcd/0x170
[  272.833964][   T73]      do_syscall_64+0xc6/0x1e0
[  272.833964][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  272.833964][   T73] 
[  272.836258][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  272.836258][   T73]      dst_init+0x84/0x4a0
[  272.836258][   T73]      dst_alloc+0x97/0x150
[  272.836258][   T73]      ip6_dst_alloc+0x23/0x90
[  272.836258][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  272.836258][   T73]      ip6_pol_route+0x56f/0x840
[  272.836258][   T73]      fib6_rule_lookup+0x456/0x630
[  272.836258][   T73]      ip6_route_input+0x59c/0xa50
[  272.836258][   T73]      ipv6_rcv+0x397/0x810
[  272.836258][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  272.836258][   T73]      process_backlog+0x101/0x620
[  272.836258][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  272.836258][   T73]      net_rx_action+0x495/0xbe0
[  272.836258][   T73]      __do_softirq+0x1b5/0x7f6
[  272.836258][   T73] 
[  272.838256][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  272.838256][   T73]      netdev_get_by_index+0x5e/0x80
[  272.838256][   T73]      fib6_nh_init+0x3d8/0x1580
[  272.838256][   T73]      ip6_route_info_create+0xf18/0x17d0
[  272.838256][   T73]      ip6_route_add+0x1c/0x140
[  272.838256][   T73]      addrconf_prefix_route+0x2a6/0x430
[  272.838256][   T73]      inet6_addr_add+0x4f8/0xa40
[  272.838256][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  272.838256][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  272.838256][   T73]      netlink_rcv_skb+0x130/0x360
[  272.838256][   T73]      netlink_unicast+0x449/0x710
[  272.838256][   T73]      netlink_sendmsg+0x723/0xbe0
[  272.838256][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  272.838256][   T73]      ___sys_sendmsg+0xee/0x170
[  272.838256][   T73]      __sys_sendmsg+0xcd/0x170
[  272.838256][   T73]      do_syscall_64+0xc6/0x1e0
[  272.838256][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  272.838256][   T73] 
[  272.840843][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  272.840843][   T73]      netdev_get_by_index+0x5e/0x80
[  272.840843][   T73]      fib6_nh_init+0x3d8/0x1580
[  272.840843][   T73]      ip6_route_info_create+0xf18/0x17d0
[  272.840843][   T73]      addrconf_f6i_alloc+0x315/0x560
[  272.840843][   T73]      ipv6_add_addr+0x411/0x2000
[  272.840843][   T73]      inet6_addr_add+0x30e/0xa40
[  272.840843][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  272.840843][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  272.840843][   T73]      netlink_rcv_skb+0x130/0x360
[  272.840843][   T73]      netlink_unicast+0x449/0x710
[  272.840843][   T73]      netlink_sendmsg+0x723/0xbe0
[  272.840843][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  272.840843][   T73]      ___sys_sendmsg+0xee/0x170
[  272.840843][   T73]      __sys_sendmsg+0xcd/0x170
[  272.840843][   T73]      do_syscall_64+0xc6/0x1e0
[  272.840843][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  272.840843][   T73] 
[  272.843452][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  272.843452][   T73]      netdev_get_by_index+0x5e/0x80
[  272.843452][   T73]      fib6_nh_init+0x3d8/0x1580
[  272.843452][   T73]      ip6_route_info_create+0xf18/0x17d0
[  272.843452][   T73]      ip6_route_add+0x1c/0x140
[  272.843452][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  272.843452][   T73]      addrconf_add_dev+0xe2/0x170
[  272.843452][   T73]      inet6_addr_add+0x12f/0xa40
[  272.843452][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  272.843452][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  272.843452][   T73]      netlink_rcv_skb+0x130/0x360
[  272.843452][   T73]      netlink_unicast+0x449/0x710
[  272.843452][   T73]      netlink_sendmsg+0x723/0xbe0
[  272.843452][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  272.843452][   T73]      ___sys_sendmsg+0xee/0x170
[  272.843452][   T73]      __sys_sendmsg+0xcd/0x170
[  272.843452][   T73]      do_syscall_64+0xc6/0x1e0
[  272.843452][   T73] 
[  272.845996][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  272.845996][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  272.845996][   T73]      ipv6_find_idev+0x102/0x170
[  272.845996][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  272.845996][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  272.845996][   T73]      netlink_rcv_skb+0x130/0x360
[  272.845996][   T73]      netlink_unicast+0x449/0x710
[  272.845996][   T73]      netlink_sendmsg+0x723/0xbe0
[  272.845996][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  272.845996][   T73]      ___sys_sendmsg+0xee/0x170
[  272.845996][   T73]      __sys_sendmsg+0xcd/0x170
[  272.845996][   T73]      do_syscall_64+0xc6/0x1e0
[  272.845996][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  272.845996][   T73] 
[  272.847944][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  272.847944][   T73]      neigh_parms_alloc+0x1e5/0x510
[  272.847944][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  272.847944][   T73]      ipv6_find_idev+0x102/0x170
[  272.847944][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  272.847944][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  272.847944][   T73]      netlink_rcv_skb+0x130/0x360
[  272.847944][   T73]      netlink_unicast+0x449/0x710
[  272.847944][   T73]      netlink_sendmsg+0x723/0xbe0
[  272.847944][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  272.847944][   T73]      ___sys_sendmsg+0xee/0x170
[  272.847944][   T73]      __sys_sendmsg+0xcd/0x170
[  272.847944][   T73]      do_syscall_64+0xc6/0x1e0
[  272.847944][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  272.847944][   T73] 
[  272.849979][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  272.850265][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  272.850265][   T73]      netdev_get_by_index+0x5e/0x80
[  272.850265][   T73]      fib6_nh_init+0x3d8/0x1580
[  272.850265][   T73]      ip6_route_info_create+0xf18/0x17d0
[  272.850265][   T73]      addrconf_f6i_alloc+0x265/0x560
[  272.850265][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  272.850265][   T73]      addrconf_join_anycast+0x1c0/0x220
[  272.850265][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  272.850265][   T73]      addrconf_dad_completed+0x12b/0xe20
[  272.850265][   T73]      addrconf_dad_begin+0x310/0x670
[  272.850265][   T73]      addrconf_dad_work+0x10b/0xab0
[  272.850265][   T73]      process_one_work+0x84d/0x18a0
[  272.850265][   T73]      worker_thread+0x587/0xd30
[  272.850265][   T73]      kthread+0x28a/0x350
[  272.850265][   T73]      ret_from_fork+0x31/0x70
[  272.850265][   T73]      ret_from_fork_asm+0x1a/0x30
[  272.850265][   T73] 
[  272.852532][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  272.852532][   T73]      netdev_get_by_index+0x5e/0x80
[  272.852532][   T73]      fib6_nh_init+0x3d8/0x1580
[  272.852532][   T73]      ip6_route_info_create+0xf18/0x17d0
[  272.852532][   T73]      ip6_route_add+0x1c/0x140
[  272.852532][   T73]      addrconf_prefix_route+0x2a6/0x430
[  272.852532][   T73]      inet6_addr_add+0x4f8/0xa40
[  272.852532][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  272.852532][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  272.852532][   T73]      netlink_rcv_skb+0x130/0x360
[  272.852532][   T73]      netlink_unicast+0x449/0x710
[  272.852532][   T73]      netlink_sendmsg+0x723/0xbe0
[  272.852532][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  272.852532][   T73]      ___sys_sendmsg+0xee/0x170
[  272.852532][   T73]      __sys_sendmsg+0xcd/0x170
[  272.852532][   T73]      do_syscall_64+0xc6/0x1e0
[  272.852532][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  272.852532][   T73] 
[  272.854788][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  272.854788][   T73]      netdev_get_by_index+0x5e/0x80
[  272.854788][   T73]      fib6_nh_init+0x3d8/0x1580
[  272.854788][   T73]      ip6_route_info_create+0xf18/0x17d0
[  272.854788][   T73]      addrconf_f6i_alloc+0x315/0x560
[  272.854788][   T73]      ipv6_add_addr+0x411/0x2000
[  272.854788][   T73]      inet6_addr_add+0x30e/0xa40
[  272.854788][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  272.854788][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  272.854788][   T73]      netlink_rcv_skb+0x130/0x360
[  272.854788][   T73]      netlink_unicast+0x449/0x710
[  272.854788][   T73]      netlink_sendmsg+0x723/0xbe0
[  272.854788][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  272.854788][   T73]      ___sys_sendmsg+0xee/0x170
[  272.854788][   T73]      __sys_sendmsg+0xcd/0x170
[  272.854788][   T73]      do_syscall_64+0xc6/0x1e0
[  272.854788][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  272.854788][   T73] 
[  272.857082][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  272.857082][   T73]      netdev_get_by_index+0x5e/0x80
[  272.857082][   T73]      fib6_nh_init+0x3d8/0x1580
[  272.857082][   T73]      ip6_route_info_create+0xf18/0x17d0
[  272.857082][   T73]      ip6_route_add+0x1c/0x140
[  272.857082][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  272.857082][   T73]      addrconf_add_dev+0xe2/0x170
[  272.857082][   T73]      inet6_addr_add+0x12f/0xa40
[  272.857082][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  272.857082][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  272.857082][   T73]      netlink_rcv_skb+0x130/0x360
[  272.857082][   T73]      netlink_unicast+0x449/0x710
[  272.857082][   T73]      netlink_sendmsg+0x723/0xbe0
[  272.857082][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  272.857082][   T73]      ___sys_sendmsg+0xee/0x170
[  272.857082][   T73]      __sys_sendmsg+0xcd/0x170
[  272.857082][   T73]      do_syscall_64+0xc6/0x1e0
[  272.857082][   T73] 
[  272.859219][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  272.859219][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  272.859219][   T73]      ipv6_find_idev+0x102/0x170
[  272.859219][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  272.859219][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  272.859219][   T73]      netlink_rcv_skb+0x130/0x360
[  272.859219][   T73]      netlink_unicast+0x449/0x710
[  272.859219][   T73]      netlink_sendmsg+0x723/0xbe0
[  272.859219][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  272.859219][   T73]      ___sys_sendmsg+0xee/0x170
[  272.859219][   T73]      __sys_sendmsg+0xcd/0x170
[  272.859219][   T73]      do_syscall_64+0xc6/0x1e0
[  272.859219][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  272.859219][   T73] 
[  272.860934][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  272.860934][   T73]      neigh_parms_alloc+0x1e5/0x510
[  272.860934][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  272.860934][   T73]      ipv6_find_idev+0x102/0x170
[  272.860934][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  272.860934][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  272.860934][   T73]      netlink_rcv_skb+0x130/0x360
[  272.860934][   T73]      netlink_unicast+0x449/0x710
[  272.860934][   T73]      netlink_sendmsg+0x723/0xbe0
[  272.860934][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  272.860934][   T73]      ___sys_sendmsg+0xee/0x170
[  272.860934][   T73]      __sys_sendmsg+0xcd/0x170
[  272.860934][   T73]      do_syscall_64+0xc6/0x1e0
[  272.860934][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  272.860934][   T73] 
[  283.103774][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  283.104311][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  283.104311][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  283.104311][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  283.104311][   T73]      fib6_nh_init+0xa22/0x1580
[  283.104311][   T73]      ip6_route_info_create+0xf18/0x17d0
[  283.104311][   T73]      ip6_route_add+0x1c/0x140
[  283.104311][   T73]      inet6_rtm_newroute+0x104/0x110
[  283.104311][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  283.104311][   T73]      netlink_rcv_skb+0x130/0x360
[  283.104311][   T73]      netlink_unicast+0x449/0x710
[  283.104311][   T73]      netlink_sendmsg+0x723/0xbe0
[  283.104311][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  283.104311][   T73]      ___sys_sendmsg+0xee/0x170
[  283.104311][   T73]      __sys_sendmsg+0xcd/0x170
[  283.104311][   T73]      do_syscall_64+0xc6/0x1e0
[  283.104311][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  283.104311][   T73] 
[  283.106299][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  283.106299][   T73]      dst_init+0x84/0x4a0
[  283.106299][   T73]      dst_alloc+0x97/0x150
[  283.106299][   T73]      ip6_dst_alloc+0x23/0x90
[  283.106299][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  283.106299][   T73]      ip6_pol_route+0x56f/0x840
[  283.106299][   T73]      fib6_rule_lookup+0x456/0x630
[  283.106299][   T73]      ip6_route_input+0x59c/0xa50
[  283.106299][   T73]      ipv6_rcv+0x397/0x810
[  283.106299][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  283.106299][   T73]      process_backlog+0x101/0x620
[  283.106299][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  283.106299][   T73]      net_rx_action+0x495/0xbe0
[  283.106299][   T73]      __do_softirq+0x1b5/0x7f6
[  283.106299][   T73] 
[  283.108030][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  283.108030][   T73]      netdev_get_by_index+0x5e/0x80
[  283.108030][   T73]      fib6_nh_init+0x3d8/0x1580
[  283.108030][   T73]      ip6_route_info_create+0xf18/0x17d0
[  283.108030][   T73]      ip6_route_add+0x1c/0x140
[  283.108030][   T73]      addrconf_prefix_route+0x2a6/0x430
[  283.108030][   T73]      inet6_addr_add+0x4f8/0xa40
[  283.108030][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  283.108030][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  283.108030][   T73]      netlink_rcv_skb+0x130/0x360
[  283.108030][   T73]      netlink_unicast+0x449/0x710
[  283.108030][   T73]      netlink_sendmsg+0x723/0xbe0
[  283.108030][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  283.108030][   T73]      ___sys_sendmsg+0xee/0x170
[  283.108030][   T73]      __sys_sendmsg+0xcd/0x170
[  283.108030][   T73]      do_syscall_64+0xc6/0x1e0
[  283.108030][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  283.108030][   T73] 
[  283.110155][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  283.110155][   T73]      netdev_get_by_index+0x5e/0x80
[  283.110155][   T73]      fib6_nh_init+0x3d8/0x1580
[  283.110155][   T73]      ip6_route_info_create+0xf18/0x17d0
[  283.110155][   T73]      addrconf_f6i_alloc+0x315/0x560
[  283.110155][   T73]      ipv6_add_addr+0x411/0x2000
[  283.110155][   T73]      inet6_addr_add+0x30e/0xa40
[  283.110155][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  283.110155][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  283.110155][   T73]      netlink_rcv_skb+0x130/0x360
[  283.110155][   T73]      netlink_unicast+0x449/0x710
[  283.110155][   T73]      netlink_sendmsg+0x723/0xbe0
[  283.110155][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  283.110155][   T73]      ___sys_sendmsg+0xee/0x170
[  283.110155][   T73]      __sys_sendmsg+0xcd/0x170
[  283.110155][   T73]      do_syscall_64+0xc6/0x1e0
[  283.110155][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  283.110155][   T73] 
[  283.112293][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  283.112293][   T73]      netdev_get_by_index+0x5e/0x80
[  283.112293][   T73]      fib6_nh_init+0x3d8/0x1580
[  283.112293][   T73]      ip6_route_info_create+0xf18/0x17d0
[  283.112293][   T73]      ip6_route_add+0x1c/0x140
[  283.112293][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  283.112293][   T73]      addrconf_add_dev+0xe2/0x170
[  283.112293][   T73]      inet6_addr_add+0x12f/0xa40
[  283.112293][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  283.112293][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  283.112293][   T73]      netlink_rcv_skb+0x130/0x360
[  283.112293][   T73]      netlink_unicast+0x449/0x710
[  283.112293][   T73]      netlink_sendmsg+0x723/0xbe0
[  283.112293][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  283.112293][   T73]      ___sys_sendmsg+0xee/0x170
[  283.112293][   T73]      __sys_sendmsg+0xcd/0x170
[  283.112293][   T73]      do_syscall_64+0xc6/0x1e0
[  283.112293][   T73] 
[  283.114411][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  283.114411][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  283.114411][   T73]      ipv6_find_idev+0x102/0x170
[  283.114411][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  283.114411][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  283.114411][   T73]      netlink_rcv_skb+0x130/0x360
[  283.114411][   T73]      netlink_unicast+0x449/0x710
[  283.114411][   T73]      netlink_sendmsg+0x723/0xbe0
[  283.114411][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  283.114411][   T73]      ___sys_sendmsg+0xee/0x170
[  283.114411][   T73]      __sys_sendmsg+0xcd/0x170
[  283.114411][   T73]      do_syscall_64+0xc6/0x1e0
[  283.114411][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  283.114411][   T73] 
[  283.116105][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  283.116105][   T73]      neigh_parms_alloc+0x1e5/0x510
[  283.116105][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  283.116105][   T73]      ipv6_find_idev+0x102/0x170
[  283.116105][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  283.116105][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  283.116105][   T73]      netlink_rcv_skb+0x130/0x360
[  283.116105][   T73]      netlink_unicast+0x449/0x710
[  283.116105][   T73]      netlink_sendmsg+0x723/0xbe0
[  283.116105][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  283.116105][   T73]      ___sys_sendmsg+0xee/0x170
[  283.116105][   T73]      __sys_sendmsg+0xcd/0x170
[  283.116105][   T73]      do_syscall_64+0xc6/0x1e0
[  283.116105][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  283.116105][   T73] 
[  283.117875][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  283.118168][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  283.118168][   T73]      netdev_get_by_index+0x5e/0x80
[  283.118168][   T73]      fib6_nh_init+0x3d8/0x1580
[  283.118168][   T73]      ip6_route_info_create+0xf18/0x17d0
[  283.118168][   T73]      addrconf_f6i_alloc+0x265/0x560
[  283.118168][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  283.118168][   T73]      addrconf_join_anycast+0x1c0/0x220
[  283.118168][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  283.118168][   T73]      addrconf_dad_completed+0x12b/0xe20
[  283.118168][   T73]      addrconf_dad_begin+0x310/0x670
[  283.118168][   T73]      addrconf_dad_work+0x10b/0xab0
[  283.118168][   T73]      process_one_work+0x84d/0x18a0
[  283.118168][   T73]      worker_thread+0x587/0xd30
[  283.118168][   T73]      kthread+0x28a/0x350
[  283.118168][   T73]      ret_from_fork+0x31/0x70
[  283.118168][   T73]      ret_from_fork_asm+0x1a/0x30
[  283.118168][   T73] 
[  283.120081][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  283.120081][   T73]      netdev_get_by_index+0x5e/0x80
[  283.120081][   T73]      fib6_nh_init+0x3d8/0x1580
[  283.120081][   T73]      ip6_route_info_create+0xf18/0x17d0
[  283.120081][   T73]      ip6_route_add+0x1c/0x140
[  283.120081][   T73]      addrconf_prefix_route+0x2a6/0x430
[  283.120081][   T73]      inet6_addr_add+0x4f8/0xa40
[  283.120081][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  283.120081][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  283.120081][   T73]      netlink_rcv_skb+0x130/0x360
[  283.120081][   T73]      netlink_unicast+0x449/0x710
[  283.120081][   T73]      netlink_sendmsg+0x723/0xbe0
[  283.120081][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  283.120081][   T73]      ___sys_sendmsg+0xee/0x170
[  283.120081][   T73]      __sys_sendmsg+0xcd/0x170
[  283.120081][   T73]      do_syscall_64+0xc6/0x1e0
[  283.120081][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  283.120081][   T73] 
[  283.122118][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  283.122118][   T73]      netdev_get_by_index+0x5e/0x80
[  283.122118][   T73]      fib6_nh_init+0x3d8/0x1580
[  283.122118][   T73]      ip6_route_info_create+0xf18/0x17d0
[  283.122118][   T73]      addrconf_f6i_alloc+0x315/0x560
[  283.122118][   T73]      ipv6_add_addr+0x411/0x2000
[  283.122118][   T73]      inet6_addr_add+0x30e/0xa40
[  283.122118][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  283.122118][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  283.122118][   T73]      netlink_rcv_skb+0x130/0x360
[  283.122118][   T73]      netlink_unicast+0x449/0x710
[  283.122118][   T73]      netlink_sendmsg+0x723/0xbe0
[  283.122118][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  283.122118][   T73]      ___sys_sendmsg+0xee/0x170
[  283.122118][   T73]      __sys_sendmsg+0xcd/0x170
[  283.122118][   T73]      do_syscall_64+0xc6/0x1e0
[  283.122118][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  283.122118][   T73] 
[  283.124172][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  283.124172][   T73]      netdev_get_by_index+0x5e/0x80
[  283.124172][   T73]      fib6_nh_init+0x3d8/0x1580
[  283.124172][   T73]      ip6_route_info_create+0xf18/0x17d0
[  283.124172][   T73]      ip6_route_add+0x1c/0x140
[  283.124172][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  283.124172][   T73]      addrconf_add_dev+0xe2/0x170
[  283.124172][   T73]      inet6_addr_add+0x12f/0xa40
[  283.124172][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  283.124172][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  283.124172][   T73]      netlink_rcv_skb+0x130/0x360
[  283.124172][   T73]      netlink_unicast+0x449/0x710
[  283.124172][   T73]      netlink_sendmsg+0x723/0xbe0
[  283.124172][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  283.124172][   T73]      ___sys_sendmsg+0xee/0x170
[  283.124172][   T73]      __sys_sendmsg+0xcd/0x170
[  283.124172][   T73]      do_syscall_64+0xc6/0x1e0
[  283.124172][   T73] 
[  283.126185][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  283.126185][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  283.126185][   T73]      ipv6_find_idev+0x102/0x170
[  283.126185][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  283.126185][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  283.126185][   T73]      netlink_rcv_skb+0x130/0x360
[  283.126185][   T73]      netlink_unicast+0x449/0x710
[  283.126185][   T73]      netlink_sendmsg+0x723/0xbe0
[  283.126185][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  283.126185][   T73]      ___sys_sendmsg+0xee/0x170
[  283.126185][   T73]      __sys_sendmsg+0xcd/0x170
[  283.126185][   T73]      do_syscall_64+0xc6/0x1e0
[  283.126185][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  283.126185][   T73] 
[  283.127738][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  283.127738][   T73]      neigh_parms_alloc+0x1e5/0x510
[  283.127738][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  283.127738][   T73]      ipv6_find_idev+0x102/0x170
[  283.127738][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  283.127738][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  283.127738][   T73]      netlink_rcv_skb+0x130/0x360
[  283.127738][   T73]      netlink_unicast+0x449/0x710
[  283.127738][   T73]      netlink_sendmsg+0x723/0xbe0
[  283.127738][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  283.127738][   T73]      ___sys_sendmsg+0xee/0x170
[  283.127738][   T73]      __sys_sendmsg+0xcd/0x170
[  283.127738][   T73]      do_syscall_64+0xc6/0x1e0
[  283.127738][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  283.127738][   T73] 
[  283.129543][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  283.129841][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  283.129841][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  283.129841][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  283.129841][   T73]      fib6_nh_init+0xa22/0x1580
[  283.129841][   T73]      ip6_route_info_create+0xf18/0x17d0
[  283.129841][   T73]      ip6_route_add+0x1c/0x140
[  283.129841][   T73]      inet6_rtm_newroute+0x104/0x110
[  283.129841][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  283.129841][   T73]      netlink_rcv_skb+0x130/0x360
[  283.129841][   T73]      netlink_unicast+0x449/0x710
[  283.129841][   T73]      netlink_sendmsg+0x723/0xbe0
[  283.129841][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  283.129841][   T73]      ___sys_sendmsg+0xee/0x170
[  283.129841][   T73]      __sys_sendmsg+0xcd/0x170
[  283.129841][   T73]      do_syscall_64+0xc6/0x1e0
[  283.129841][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  283.129841][   T73] 
[  283.132089][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  283.132089][   T73]      dst_init+0x84/0x4a0
[  283.132089][   T73]      dst_alloc+0x97/0x150
[  283.132089][   T73]      ip6_dst_alloc+0x23/0x90
[  283.132089][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  283.132089][   T73]      ip6_pol_route+0x56f/0x840
[  283.132089][   T73]      fib6_rule_lookup+0x456/0x630
[  283.132089][   T73]      ip6_route_input+0x59c/0xa50
[  283.132089][   T73]      ipv6_rcv+0x397/0x810
[  283.132089][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  283.132089][   T73]      process_backlog+0x101/0x620
[  283.132089][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  283.132089][   T73]      net_rx_action+0x495/0xbe0
[  283.132089][   T73]      __do_softirq+0x1b5/0x7f6
[  283.132089][   T73] 
[  283.134208][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  283.134208][   T73]      netdev_get_by_index+0x5e/0x80
[  283.134208][   T73]      fib6_nh_init+0x3d8/0x1580
[  283.134208][   T73]      ip6_route_info_create+0xf18/0x17d0
[  283.134208][   T73]      ip6_route_add+0x1c/0x140
[  283.134208][   T73]      addrconf_prefix_route+0x2a6/0x430
[  283.134208][   T73]      inet6_addr_add+0x4f8/0xa40
[  283.134208][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  283.134208][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  283.134208][   T73]      netlink_rcv_skb+0x130/0x360
[  283.134208][   T73]      netlink_unicast+0x449/0x710
[  283.134208][   T73]      netlink_sendmsg+0x723/0xbe0
[  283.134208][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  283.134208][   T73]      ___sys_sendmsg+0xee/0x170
[  283.134208][   T73]      __sys_sendmsg+0xcd/0x170
[  283.134208][   T73]      do_syscall_64+0xc6/0x1e0
[  283.134208][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  283.134208][   T73] 
[  283.136799][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  283.136799][   T73]      netdev_get_by_index+0x5e/0x80
[  283.136799][   T73]      fib6_nh_init+0x3d8/0x1580
[  283.136799][   T73]      ip6_route_info_create+0xf18/0x17d0
[  283.136799][   T73]      addrconf_f6i_alloc+0x315/0x560
[  283.136799][   T73]      ipv6_add_addr+0x411/0x2000
[  283.136799][   T73]      inet6_addr_add+0x30e/0xa40
[  283.136799][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  283.136799][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  283.136799][   T73]      netlink_rcv_skb+0x130/0x360
[  283.136799][   T73]      netlink_unicast+0x449/0x710
[  283.136799][   T73]      netlink_sendmsg+0x723/0xbe0
[  283.136799][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  283.136799][   T73]      ___sys_sendmsg+0xee/0x170
[  283.136799][   T73]      __sys_sendmsg+0xcd/0x170
[  283.136799][   T73]      do_syscall_64+0xc6/0x1e0
[  283.136799][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  283.136799][   T73] 
[  283.139374][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  283.139374][   T73]      netdev_get_by_index+0x5e/0x80
[  283.139374][   T73]      fib6_nh_init+0x3d8/0x1580
[  283.139374][   T73]      ip6_route_info_create+0xf18/0x17d0
[  283.139374][   T73]      ip6_route_add+0x1c/0x140
[  283.139374][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  283.139374][   T73]      addrconf_add_dev+0xe2/0x170
[  283.139374][   T73]      inet6_addr_add+0x12f/0xa40
[  283.139374][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  283.139374][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  283.139374][   T73]      netlink_rcv_skb+0x130/0x360
[  283.139374][   T73]      netlink_unicast+0x449/0x710
[  283.139374][   T73]      netlink_sendmsg+0x723/0xbe0
[  283.139374][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  283.139374][   T73]      ___sys_sendmsg+0xee/0x170
[  283.139374][   T73]      __sys_sendmsg+0xcd/0x170
[  283.139374][   T73]      do_syscall_64+0xc6/0x1e0
[  283.139374][   T73] 
[  283.141893][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  283.141893][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  283.141893][   T73]      ipv6_find_idev+0x102/0x170
[  283.141893][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  283.141893][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  283.141893][   T73]      netlink_rcv_skb+0x130/0x360
[  283.141893][   T73]      netlink_unicast+0x449/0x710
[  283.141893][   T73]      netlink_sendmsg+0x723/0xbe0
[  283.141893][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  283.141893][   T73]      ___sys_sendmsg+0xee/0x170
[  283.141893][   T73]      __sys_sendmsg+0xcd/0x170
[  283.141893][   T73]      do_syscall_64+0xc6/0x1e0
[  283.141893][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  283.141893][   T73] 
[  283.143949][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  283.143949][   T73]      neigh_parms_alloc+0x1e5/0x510
[  283.143949][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  283.143949][   T73]      ipv6_find_idev+0x102/0x170
[  283.143949][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  283.143949][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  283.143949][   T73]      netlink_rcv_skb+0x130/0x360
[  283.143949][   T73]      netlink_unicast+0x449/0x710
[  283.143949][   T73]      netlink_sendmsg+0x723/0xbe0
[  283.143949][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  283.143949][   T73]      ___sys_sendmsg+0xee/0x170
[  283.143949][   T73]      __sys_sendmsg+0xcd/0x170
[  283.143949][   T73]      do_syscall_64+0xc6/0x1e0
[  283.143949][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  283.143949][   T73] 
[  283.146173][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  283.146487][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  283.146487][   T73]      netdev_get_by_index+0x5e/0x80
[  283.146487][   T73]      fib6_nh_init+0x3d8/0x1580
[  283.146487][   T73]      ip6_route_info_create+0xf18/0x17d0
[  283.146487][   T73]      addrconf_f6i_alloc+0x265/0x560
[  283.146487][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  283.146487][   T73]      addrconf_join_anycast+0x1c0/0x220
[  283.146487][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  283.146487][   T73]      addrconf_dad_completed+0x12b/0xe20
[  283.146487][   T73]      addrconf_dad_begin+0x310/0x670
[  283.146487][   T73]      addrconf_dad_work+0x10b/0xab0
[  283.146487][   T73]      process_one_work+0x84d/0x18a0
[  283.146487][   T73]      worker_thread+0x587/0xd30
[  283.146487][   T73]      kthread+0x28a/0x350
[  283.146487][   T73]      ret_from_fork+0x31/0x70
[  283.146487][   T73]      ret_from_fork_asm+0x1a/0x30
[  283.146487][   T73] 
[  283.148863][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  283.148863][   T73]      netdev_get_by_index+0x5e/0x80
[  283.148863][   T73]      fib6_nh_init+0x3d8/0x1580
[  283.148863][   T73]      ip6_route_info_create+0xf18/0x17d0
[  283.148863][   T73]      ip6_route_add+0x1c/0x140
[  283.148863][   T73]      addrconf_prefix_route+0x2a6/0x430
[  283.148863][   T73]      inet6_addr_add+0x4f8/0xa40
[  283.148863][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  283.148863][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  283.148863][   T73]      netlink_rcv_skb+0x130/0x360
[  283.148863][   T73]      netlink_unicast+0x449/0x710
[  283.148863][   T73]      netlink_sendmsg+0x723/0xbe0
[  283.148863][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  283.148863][   T73]      ___sys_sendmsg+0xee/0x170
[  283.148863][   T73]      __sys_sendmsg+0xcd/0x170
[  283.148863][   T73]      do_syscall_64+0xc6/0x1e0
[  283.148863][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  283.148863][   T73] 
[  283.151240][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  283.151240][   T73]      netdev_get_by_index+0x5e/0x80
[  283.151240][   T73]      fib6_nh_init+0x3d8/0x1580
[  283.151240][   T73]      ip6_route_info_create+0xf18/0x17d0
[  283.151240][   T73]      addrconf_f6i_alloc+0x315/0x560
[  283.151240][   T73]      ipv6_add_addr+0x411/0x2000
[  283.151240][   T73]      inet6_addr_add+0x30e/0xa40
[  283.151240][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  283.151240][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  283.151240][   T73]      netlink_rcv_skb+0x130/0x360
[  283.151240][   T73]      netlink_unicast+0x449/0x710
[  283.151240][   T73]      netlink_sendmsg+0x723/0xbe0
[  283.151240][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  283.151240][   T73]      ___sys_sendmsg+0xee/0x170
[  283.151240][   T73]      __sys_sendmsg+0xcd/0x170
[  283.151240][   T73]      do_syscall_64+0xc6/0x1e0
[  283.151240][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  283.151240][   T73] 
[  283.153822][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  283.153822][   T73]      netdev_get_by_index+0x5e/0x80
[  283.153822][   T73]      fib6_nh_init+0x3d8/0x1580
[  283.153822][   T73]      ip6_route_info_create+0xf18/0x17d0
[  283.153822][   T73]      ip6_route_add+0x1c/0x140
[  283.153822][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  283.153822][   T73]      addrconf_add_dev+0xe2/0x170
[  283.153822][   T73]      inet6_addr_add+0x12f/0xa40
[  283.153822][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  283.153822][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  283.153822][   T73]      netlink_rcv_skb+0x130/0x360
[  283.153822][   T73]      netlink_unicast+0x449/0x710
[  283.153822][   T73]      netlink_sendmsg+0x723/0xbe0
[  283.153822][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  283.153822][   T73]      ___sys_sendmsg+0xee/0x170
[  283.153822][   T73]      __sys_sendmsg+0xcd/0x170
[  283.153822][   T73]      do_syscall_64+0xc6/0x1e0
[  283.153822][   T73] 
[  283.156310][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  283.156310][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  283.156310][   T73]      ipv6_find_idev+0x102/0x170
[  283.156310][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  283.156310][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  283.156310][   T73]      netlink_rcv_skb+0x130/0x360
[  283.156310][   T73]      netlink_unicast+0x449/0x710
[  283.156310][   T73]      netlink_sendmsg+0x723/0xbe0
[  283.156310][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  283.156310][   T73]      ___sys_sendmsg+0xee/0x170
[  283.156310][   T73]      __sys_sendmsg+0xcd/0x170
[  283.156310][   T73]      do_syscall_64+0xc6/0x1e0
[  283.156310][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  283.156310][   T73] 
[  283.158292][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  283.158292][   T73]      neigh_parms_alloc+0x1e5/0x510
[  283.158292][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  283.158292][   T73]      ipv6_find_idev+0x102/0x170
[  283.158292][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  283.158292][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  283.158292][   T73]      netlink_rcv_skb+0x130/0x360
[  283.158292][   T73]      netlink_unicast+0x449/0x710
[  283.158292][   T73]      netlink_sendmsg+0x723/0xbe0
[  283.158292][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  283.158292][   T73]      ___sys_sendmsg+0xee/0x170
[  283.158292][   T73]      __sys_sendmsg+0xcd/0x170
[  283.158292][   T73]      do_syscall_64+0xc6/0x1e0
[  283.158292][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  283.158292][   T73] 
[  293.399810][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  293.400256][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  293.400256][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  293.400256][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  293.400256][   T73]      fib6_nh_init+0xa22/0x1580
[  293.400256][   T73]      ip6_route_info_create+0xf18/0x17d0
[  293.400256][   T73]      ip6_route_add+0x1c/0x140
[  293.400256][   T73]      inet6_rtm_newroute+0x104/0x110
[  293.400256][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  293.400256][   T73]      netlink_rcv_skb+0x130/0x360
[  293.400256][   T73]      netlink_unicast+0x449/0x710
[  293.400256][   T73]      netlink_sendmsg+0x723/0xbe0
[  293.400256][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  293.400256][   T73]      ___sys_sendmsg+0xee/0x170
[  293.400256][   T73]      __sys_sendmsg+0xcd/0x170
[  293.400256][   T73]      do_syscall_64+0xc6/0x1e0
[  293.400256][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  293.400256][   T73] 
[  293.402187][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  293.402187][   T73]      dst_init+0x84/0x4a0
[  293.402187][   T73]      dst_alloc+0x97/0x150
[  293.402187][   T73]      ip6_dst_alloc+0x23/0x90
[  293.402187][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  293.402187][   T73]      ip6_pol_route+0x56f/0x840
[  293.402187][   T73]      fib6_rule_lookup+0x456/0x630
[  293.402187][   T73]      ip6_route_input+0x59c/0xa50
[  293.402187][   T73]      ipv6_rcv+0x397/0x810
[  293.402187][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  293.402187][   T73]      process_backlog+0x101/0x620
[  293.402187][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  293.402187][   T73]      net_rx_action+0x495/0xbe0
[  293.402187][   T73]      __do_softirq+0x1b5/0x7f6
[  293.402187][   T73] 
[  293.403828][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  293.403828][   T73]      netdev_get_by_index+0x5e/0x80
[  293.403828][   T73]      fib6_nh_init+0x3d8/0x1580
[  293.403828][   T73]      ip6_route_info_create+0xf18/0x17d0
[  293.403828][   T73]      ip6_route_add+0x1c/0x140
[  293.403828][   T73]      addrconf_prefix_route+0x2a6/0x430
[  293.403828][   T73]      inet6_addr_add+0x4f8/0xa40
[  293.403828][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  293.403828][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  293.403828][   T73]      netlink_rcv_skb+0x130/0x360
[  293.403828][   T73]      netlink_unicast+0x449/0x710
[  293.403828][   T73]      netlink_sendmsg+0x723/0xbe0
[  293.403828][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  293.403828][   T73]      ___sys_sendmsg+0xee/0x170
[  293.403828][   T73]      __sys_sendmsg+0xcd/0x170
[  293.403828][   T73]      do_syscall_64+0xc6/0x1e0
[  293.403828][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  293.403828][   T73] 
[  293.405896][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  293.405896][   T73]      netdev_get_by_index+0x5e/0x80
[  293.405896][   T73]      fib6_nh_init+0x3d8/0x1580
[  293.405896][   T73]      ip6_route_info_create+0xf18/0x17d0
[  293.405896][   T73]      addrconf_f6i_alloc+0x315/0x560
[  293.405896][   T73]      ipv6_add_addr+0x411/0x2000
[  293.405896][   T73]      inet6_addr_add+0x30e/0xa40
[  293.405896][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  293.405896][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  293.405896][   T73]      netlink_rcv_skb+0x130/0x360
[  293.405896][   T73]      netlink_unicast+0x449/0x710
[  293.405896][   T73]      netlink_sendmsg+0x723/0xbe0
[  293.405896][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  293.405896][   T73]      ___sys_sendmsg+0xee/0x170
[  293.405896][   T73]      __sys_sendmsg+0xcd/0x170
[  293.405896][   T73]      do_syscall_64+0xc6/0x1e0
[  293.405896][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  293.405896][   T73] 
[  293.407954][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  293.407954][   T73]      netdev_get_by_index+0x5e/0x80
[  293.407954][   T73]      fib6_nh_init+0x3d8/0x1580
[  293.407954][   T73]      ip6_route_info_create+0xf18/0x17d0
[  293.407954][   T73]      ip6_route_add+0x1c/0x140
[  293.407954][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  293.407954][   T73]      addrconf_add_dev+0xe2/0x170
[  293.407954][   T73]      inet6_addr_add+0x12f/0xa40
[  293.407954][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  293.407954][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  293.407954][   T73]      netlink_rcv_skb+0x130/0x360
[  293.407954][   T73]      netlink_unicast+0x449/0x710
[  293.407954][   T73]      netlink_sendmsg+0x723/0xbe0
[  293.407954][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  293.407954][   T73]      ___sys_sendmsg+0xee/0x170
[  293.407954][   T73]      __sys_sendmsg+0xcd/0x170
[  293.407954][   T73]      do_syscall_64+0xc6/0x1e0
[  293.407954][   T73] 
[  293.409998][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  293.409998][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  293.409998][   T73]      ipv6_find_idev+0x102/0x170
[  293.409998][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  293.409998][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  293.409998][   T73]      netlink_rcv_skb+0x130/0x360
[  293.409998][   T73]      netlink_unicast+0x449/0x710
[  293.409998][   T73]      netlink_sendmsg+0x723/0xbe0
[  293.409998][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  293.409998][   T73]      ___sys_sendmsg+0xee/0x170
[  293.409998][   T73]      __sys_sendmsg+0xcd/0x170
[  293.409998][   T73]      do_syscall_64+0xc6/0x1e0
[  293.409998][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  293.409998][   T73] 
[  293.411591][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  293.411591][   T73]      neigh_parms_alloc+0x1e5/0x510
[  293.411591][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  293.411591][   T73]      ipv6_find_idev+0x102/0x170
[  293.411591][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  293.411591][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  293.411591][   T73]      netlink_rcv_skb+0x130/0x360
[  293.411591][   T73]      netlink_unicast+0x449/0x710
[  293.411591][   T73]      netlink_sendmsg+0x723/0xbe0
[  293.411591][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  293.411591][   T73]      ___sys_sendmsg+0xee/0x170
[  293.411591][   T73]      __sys_sendmsg+0xcd/0x170
[  293.411591][   T73]      do_syscall_64+0xc6/0x1e0
[  293.411591][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  293.411591][   T73] 
[  293.413340][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  293.413632][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  293.413632][   T73]      netdev_get_by_index+0x5e/0x80
[  293.413632][   T73]      fib6_nh_init+0x3d8/0x1580
[  293.413632][   T73]      ip6_route_info_create+0xf18/0x17d0
[  293.413632][   T73]      addrconf_f6i_alloc+0x265/0x560
[  293.413632][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  293.413632][   T73]      addrconf_join_anycast+0x1c0/0x220
[  293.413632][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  293.413632][   T73]      addrconf_dad_completed+0x12b/0xe20
[  293.413632][   T73]      addrconf_dad_begin+0x310/0x670
[  293.413632][   T73]      addrconf_dad_work+0x10b/0xab0
[  293.413632][   T73]      process_one_work+0x84d/0x18a0
[  293.413632][   T73]      worker_thread+0x587/0xd30
[  293.413632][   T73]      kthread+0x28a/0x350
[  293.413632][   T73]      ret_from_fork+0x31/0x70
[  293.413632][   T73]      ret_from_fork_asm+0x1a/0x30
[  293.413632][   T73] 
[  293.415584][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  293.415584][   T73]      netdev_get_by_index+0x5e/0x80
[  293.415584][   T73]      fib6_nh_init+0x3d8/0x1580
[  293.415584][   T73]      ip6_route_info_create+0xf18/0x17d0
[  293.415584][   T73]      ip6_route_add+0x1c/0x140
[  293.415584][   T73]      addrconf_prefix_route+0x2a6/0x430
[  293.415584][   T73]      inet6_addr_add+0x4f8/0xa40
[  293.415584][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  293.415584][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  293.415584][   T73]      netlink_rcv_skb+0x130/0x360
[  293.415584][   T73]      netlink_unicast+0x449/0x710
[  293.415584][   T73]      netlink_sendmsg+0x723/0xbe0
[  293.415584][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  293.415584][   T73]      ___sys_sendmsg+0xee/0x170
[  293.415584][   T73]      __sys_sendmsg+0xcd/0x170
[  293.415584][   T73]      do_syscall_64+0xc6/0x1e0
[  293.415584][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  293.415584][   T73] 
[  293.417602][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  293.417602][   T73]      netdev_get_by_index+0x5e/0x80
[  293.417602][   T73]      fib6_nh_init+0x3d8/0x1580
[  293.417602][   T73]      ip6_route_info_create+0xf18/0x17d0
[  293.417602][   T73]      addrconf_f6i_alloc+0x315/0x560
[  293.417602][   T73]      ipv6_add_addr+0x411/0x2000
[  293.417602][   T73]      inet6_addr_add+0x30e/0xa40
[  293.417602][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  293.417602][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  293.417602][   T73]      netlink_rcv_skb+0x130/0x360
[  293.417602][   T73]      netlink_unicast+0x449/0x710
[  293.417602][   T73]      netlink_sendmsg+0x723/0xbe0
[  293.417602][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  293.417602][   T73]      ___sys_sendmsg+0xee/0x170
[  293.417602][   T73]      __sys_sendmsg+0xcd/0x170
[  293.417602][   T73]      do_syscall_64+0xc6/0x1e0
[  293.417602][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  293.417602][   T73] 
[  293.419722][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  293.419722][   T73]      netdev_get_by_index+0x5e/0x80
[  293.419722][   T73]      fib6_nh_init+0x3d8/0x1580
[  293.419722][   T73]      ip6_route_info_create+0xf18/0x17d0
[  293.419722][   T73]      ip6_route_add+0x1c/0x140
[  293.419722][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  293.419722][   T73]      addrconf_add_dev+0xe2/0x170
[  293.419722][   T73]      inet6_addr_add+0x12f/0xa40
[  293.419722][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  293.419722][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  293.419722][   T73]      netlink_rcv_skb+0x130/0x360
[  293.419722][   T73]      netlink_unicast+0x449/0x710
[  293.419722][   T73]      netlink_sendmsg+0x723/0xbe0
[  293.419722][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  293.419722][   T73]      ___sys_sendmsg+0xee/0x170
[  293.419722][   T73]      __sys_sendmsg+0xcd/0x170
[  293.419722][   T73]      do_syscall_64+0xc6/0x1e0
[  293.419722][   T73] 
[  293.421899][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  293.421899][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  293.421899][   T73]      ipv6_find_idev+0x102/0x170
[  293.421899][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  293.421899][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  293.421899][   T73]      netlink_rcv_skb+0x130/0x360
[  293.421899][   T73]      netlink_unicast+0x449/0x710
[  293.421899][   T73]      netlink_sendmsg+0x723/0xbe0
[  293.421899][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  293.421899][   T73]      ___sys_sendmsg+0xee/0x170
[  293.421899][   T73]      __sys_sendmsg+0xcd/0x170
[  293.421899][   T73]      do_syscall_64+0xc6/0x1e0
[  293.421899][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  293.421899][   T73] 
[  293.423596][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  293.423596][   T73]      neigh_parms_alloc+0x1e5/0x510
[  293.423596][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  293.423596][   T73]      ipv6_find_idev+0x102/0x170
[  293.423596][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  293.423596][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  293.423596][   T73]      netlink_rcv_skb+0x130/0x360
[  293.423596][   T73]      netlink_unicast+0x449/0x710
[  293.423596][   T73]      netlink_sendmsg+0x723/0xbe0
[  293.423596][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  293.423596][   T73]      ___sys_sendmsg+0xee/0x170
[  293.423596][   T73]      __sys_sendmsg+0xcd/0x170
[  293.423596][   T73]      do_syscall_64+0xc6/0x1e0
[  293.423596][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  293.423596][   T73] 
[  293.425355][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  293.425632][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  293.425632][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  293.425632][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  293.425632][   T73]      fib6_nh_init+0xa22/0x1580
[  293.425632][   T73]      ip6_route_info_create+0xf18/0x17d0
[  293.425632][   T73]      ip6_route_add+0x1c/0x140
[  293.425632][   T73]      inet6_rtm_newroute+0x104/0x110
[  293.425632][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  293.425632][   T73]      netlink_rcv_skb+0x130/0x360
[  293.425632][   T73]      netlink_unicast+0x449/0x710
[  293.425632][   T73]      netlink_sendmsg+0x723/0xbe0
[  293.425632][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  293.425632][   T73]      ___sys_sendmsg+0xee/0x170
[  293.425632][   T73]      __sys_sendmsg+0xcd/0x170
[  293.425632][   T73]      do_syscall_64+0xc6/0x1e0
[  293.425632][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  293.425632][   T73] 
[  293.428173][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  293.428173][   T73]      dst_init+0x84/0x4a0
[  293.428173][   T73]      dst_alloc+0x97/0x150
[  293.428173][   T73]      ip6_dst_alloc+0x23/0x90
[  293.428173][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  293.428173][   T73]      ip6_pol_route+0x56f/0x840
[  293.428173][   T73]      fib6_rule_lookup+0x456/0x630
[  293.428173][   T73]      ip6_route_input+0x59c/0xa50
[  293.428173][   T73]      ipv6_rcv+0x397/0x810
[  293.428173][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  293.428173][   T73]      process_backlog+0x101/0x620
[  293.428173][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  293.428173][   T73]      net_rx_action+0x495/0xbe0
[  293.428173][   T73]      __do_softirq+0x1b5/0x7f6
[  293.428173][   T73] 
[  293.430058][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  293.430058][   T73]      netdev_get_by_index+0x5e/0x80
[  293.430058][   T73]      fib6_nh_init+0x3d8/0x1580
[  293.430058][   T73]      ip6_route_info_create+0xf18/0x17d0
[  293.430058][   T73]      ip6_route_add+0x1c/0x140
[  293.430058][   T73]      addrconf_prefix_route+0x2a6/0x430
[  293.430058][   T73]      inet6_addr_add+0x4f8/0xa40
[  293.430058][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  293.430058][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  293.430058][   T73]      netlink_rcv_skb+0x130/0x360
[  293.430058][   T73]      netlink_unicast+0x449/0x710
[  293.430058][   T73]      netlink_sendmsg+0x723/0xbe0
[  293.430058][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  293.430058][   T73]      ___sys_sendmsg+0xee/0x170
[  293.430058][   T73]      __sys_sendmsg+0xcd/0x170
[  293.430058][   T73]      do_syscall_64+0xc6/0x1e0
[  293.430058][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  293.430058][   T73] 
[  293.432329][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  293.432329][   T73]      netdev_get_by_index+0x5e/0x80
[  293.432329][   T73]      fib6_nh_init+0x3d8/0x1580
[  293.432329][   T73]      ip6_route_info_create+0xf18/0x17d0
[  293.432329][   T73]      addrconf_f6i_alloc+0x315/0x560
[  293.432329][   T73]      ipv6_add_addr+0x411/0x2000
[  293.432329][   T73]      inet6_addr_add+0x30e/0xa40
[  293.432329][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  293.432329][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  293.432329][   T73]      netlink_rcv_skb+0x130/0x360
[  293.432329][   T73]      netlink_unicast+0x449/0x710
[  293.432329][   T73]      netlink_sendmsg+0x723/0xbe0
[  293.432329][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  293.432329][   T73]      ___sys_sendmsg+0xee/0x170
[  293.432329][   T73]      __sys_sendmsg+0xcd/0x170
[  293.432329][   T73]      do_syscall_64+0xc6/0x1e0
[  293.432329][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  293.432329][   T73] 
[  293.434590][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  293.434590][   T73]      netdev_get_by_index+0x5e/0x80
[  293.434590][   T73]      fib6_nh_init+0x3d8/0x1580
[  293.434590][   T73]      ip6_route_info_create+0xf18/0x17d0
[  293.434590][   T73]      ip6_route_add+0x1c/0x140
[  293.434590][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  293.434590][   T73]      addrconf_add_dev+0xe2/0x170
[  293.434590][   T73]      inet6_addr_add+0x12f/0xa40
[  293.434590][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  293.434590][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  293.434590][   T73]      netlink_rcv_skb+0x130/0x360
[  293.434590][   T73]      netlink_unicast+0x449/0x710
[  293.434590][   T73]      netlink_sendmsg+0x723/0xbe0
[  293.434590][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  293.434590][   T73]      ___sys_sendmsg+0xee/0x170
[  293.434590][   T73]      __sys_sendmsg+0xcd/0x170
[  293.434590][   T73]      do_syscall_64+0xc6/0x1e0
[  293.434590][   T73] 
[  293.436828][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  293.436828][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  293.436828][   T73]      ipv6_find_idev+0x102/0x170
[  293.436828][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  293.436828][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  293.436828][   T73]      netlink_rcv_skb+0x130/0x360
[  293.436828][   T73]      netlink_unicast+0x449/0x710
[  293.436828][   T73]      netlink_sendmsg+0x723/0xbe0
[  293.436828][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  293.436828][   T73]      ___sys_sendmsg+0xee/0x170
[  293.436828][   T73]      __sys_sendmsg+0xcd/0x170
[  293.436828][   T73]      do_syscall_64+0xc6/0x1e0
[  293.436828][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  293.436828][   T73] 
[  293.438623][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  293.438623][   T73]      neigh_parms_alloc+0x1e5/0x510
[  293.438623][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  293.438623][   T73]      ipv6_find_idev+0x102/0x170
[  293.438623][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  293.438623][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  293.438623][   T73]      netlink_rcv_skb+0x130/0x360
[  293.438623][   T73]      netlink_unicast+0x449/0x710
[  293.438623][   T73]      netlink_sendmsg+0x723/0xbe0
[  293.438623][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  293.438623][   T73]      ___sys_sendmsg+0xee/0x170
[  293.438623][   T73]      __sys_sendmsg+0xcd/0x170
[  293.438623][   T73]      do_syscall_64+0xc6/0x1e0
[  293.438623][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  293.438623][   T73] 
[  293.440524][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  293.441250][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  293.441250][   T73]      netdev_get_by_index+0x5e/0x80
[  293.441250][   T73]      fib6_nh_init+0x3d8/0x1580
[  293.441250][   T73]      ip6_route_info_create+0xf18/0x17d0
[  293.441250][   T73]      addrconf_f6i_alloc+0x265/0x560
[  293.441250][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  293.441250][   T73]      addrconf_join_anycast+0x1c0/0x220
[  293.441250][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  293.441250][   T73]      addrconf_dad_completed+0x12b/0xe20
[  293.441250][   T73]      addrconf_dad_begin+0x310/0x670
[  293.441250][   T73]      addrconf_dad_work+0x10b/0xab0
[  293.441250][   T73]      process_one_work+0x84d/0x18a0
[  293.441250][   T73]      worker_thread+0x587/0xd30
[  293.441250][   T73]      kthread+0x28a/0x350
[  293.441250][   T73]      ret_from_fork+0x31/0x70
[  293.441250][   T73]      ret_from_fork_asm+0x1a/0x30
[  293.441250][   T73] 
[  293.443175][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  293.443175][   T73]      netdev_get_by_index+0x5e/0x80
[  293.443175][   T73]      fib6_nh_init+0x3d8/0x1580
[  293.443175][   T73]      ip6_route_info_create+0xf18/0x17d0
[  293.443175][   T73]      ip6_route_add+0x1c/0x140
[  293.443175][   T73]      addrconf_prefix_route+0x2a6/0x430
[  293.443175][   T73]      inet6_addr_add+0x4f8/0xa40
[  293.443175][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  293.443175][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  293.443175][   T73]      netlink_rcv_skb+0x130/0x360
[  293.443175][   T73]      netlink_unicast+0x449/0x710
[  293.443175][   T73]      netlink_sendmsg+0x723/0xbe0
[  293.443175][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  293.443175][   T73]      ___sys_sendmsg+0xee/0x170
[  293.443175][   T73]      __sys_sendmsg+0xcd/0x170
[  293.443175][   T73]      do_syscall_64+0xc6/0x1e0
[  293.443175][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  293.443175][   T73] 
[  293.445343][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  293.445343][   T73]      netdev_get_by_index+0x5e/0x80
[  293.445343][   T73]      fib6_nh_init+0x3d8/0x1580
[  293.445343][   T73]      ip6_route_info_create+0xf18/0x17d0
[  293.445343][   T73]      addrconf_f6i_alloc+0x315/0x560
[  293.445343][   T73]      ipv6_add_addr+0x411/0x2000
[  293.445343][   T73]      inet6_addr_add+0x30e/0xa40
[  293.445343][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  293.445343][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  293.445343][   T73]      netlink_rcv_skb+0x130/0x360
[  293.445343][   T73]      netlink_unicast+0x449/0x710
[  293.445343][   T73]      netlink_sendmsg+0x723/0xbe0
[  293.445343][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  293.445343][   T73]      ___sys_sendmsg+0xee/0x170
[  293.445343][   T73]      __sys_sendmsg+0xcd/0x170
[  293.445343][   T73]      do_syscall_64+0xc6/0x1e0
[  293.445343][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  293.445343][   T73] 
[  293.447591][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  293.447591][   T73]      netdev_get_by_index+0x5e/0x80
[  293.447591][   T73]      fib6_nh_init+0x3d8/0x1580
[  293.447591][   T73]      ip6_route_info_create+0xf18/0x17d0
[  293.447591][   T73]      ip6_route_add+0x1c/0x140
[  293.447591][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  293.447591][   T73]      addrconf_add_dev+0xe2/0x170
[  293.447591][   T73]      inet6_addr_add+0x12f/0xa40
[  293.447591][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  293.447591][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  293.447591][   T73]      netlink_rcv_skb+0x130/0x360
[  293.447591][   T73]      netlink_unicast+0x449/0x710
[  293.447591][   T73]      netlink_sendmsg+0x723/0xbe0
[  293.447591][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  293.447591][   T73]      ___sys_sendmsg+0xee/0x170
[  293.447591][   T73]      __sys_sendmsg+0xcd/0x170
[  293.447591][   T73]      do_syscall_64+0xc6/0x1e0
[  293.447591][   T73] 
[  293.449740][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  293.449740][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  293.449740][   T73]      ipv6_find_idev+0x102/0x170
[  293.449740][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  293.449740][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  293.449740][   T73]      netlink_rcv_skb+0x130/0x360
[  293.449740][   T73]      netlink_unicast+0x449/0x710
[  293.449740][   T73]      netlink_sendmsg+0x723/0xbe0
[  293.449740][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  293.449740][   T73]      ___sys_sendmsg+0xee/0x170
[  293.449740][   T73]      __sys_sendmsg+0xcd/0x170
[  293.449740][   T73]      do_syscall_64+0xc6/0x1e0
[  293.449740][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  293.449740][   T73] 
[  293.451526][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  293.451526][   T73]      neigh_parms_alloc+0x1e5/0x510
[  293.451526][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  293.451526][   T73]      ipv6_find_idev+0x102/0x170
[  293.451526][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  293.451526][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  293.451526][   T73]      netlink_rcv_skb+0x130/0x360
[  293.451526][   T73]      netlink_unicast+0x449/0x710
[  293.451526][   T73]      netlink_sendmsg+0x723/0xbe0
[  293.451526][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  293.451526][   T73]      ___sys_sendmsg+0xee/0x170
[  293.451526][   T73]      __sys_sendmsg+0xcd/0x170
[  293.451526][   T73]      do_syscall_64+0xc6/0x1e0
[  293.451526][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  293.451526][   T73] 
[  303.567854][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  303.568339][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  303.568339][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  303.568339][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  303.568339][   T73]      fib6_nh_init+0xa22/0x1580
[  303.568339][   T73]      ip6_route_info_create+0xf18/0x17d0
[  303.568339][   T73]      ip6_route_add+0x1c/0x140
[  303.568339][   T73]      inet6_rtm_newroute+0x104/0x110
[  303.568339][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  303.568339][   T73]      netlink_rcv_skb+0x130/0x360
[  303.568339][   T73]      netlink_unicast+0x449/0x710
[  303.568339][   T73]      netlink_sendmsg+0x723/0xbe0
[  303.568339][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  303.568339][   T73]      ___sys_sendmsg+0xee/0x170
[  303.568339][   T73]      __sys_sendmsg+0xcd/0x170
[  303.568339][   T73]      do_syscall_64+0xc6/0x1e0
[  303.568339][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  303.568339][   T73] 
[  303.570369][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  303.570369][   T73]      dst_init+0x84/0x4a0
[  303.570369][   T73]      dst_alloc+0x97/0x150
[  303.570369][   T73]      ip6_dst_alloc+0x23/0x90
[  303.570369][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  303.570369][   T73]      ip6_pol_route+0x56f/0x840
[  303.570369][   T73]      fib6_rule_lookup+0x456/0x630
[  303.570369][   T73]      ip6_route_input+0x59c/0xa50
[  303.570369][   T73]      ipv6_rcv+0x397/0x810
[  303.570369][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  303.570369][   T73]      process_backlog+0x101/0x620
[  303.570369][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  303.570369][   T73]      net_rx_action+0x495/0xbe0
[  303.570369][   T73]      __do_softirq+0x1b5/0x7f6
[  303.570369][   T73] 
[  303.572081][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  303.572081][   T73]      netdev_get_by_index+0x5e/0x80
[  303.572081][   T73]      fib6_nh_init+0x3d8/0x1580
[  303.572081][   T73]      ip6_route_info_create+0xf18/0x17d0
[  303.572081][   T73]      ip6_route_add+0x1c/0x140
[  303.572081][   T73]      addrconf_prefix_route+0x2a6/0x430
[  303.572081][   T73]      inet6_addr_add+0x4f8/0xa40
[  303.572081][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  303.572081][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  303.572081][   T73]      netlink_rcv_skb+0x130/0x360
[  303.572081][   T73]      netlink_unicast+0x449/0x710
[  303.572081][   T73]      netlink_sendmsg+0x723/0xbe0
[  303.572081][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  303.572081][   T73]      ___sys_sendmsg+0xee/0x170
[  303.572081][   T73]      __sys_sendmsg+0xcd/0x170
[  303.572081][   T73]      do_syscall_64+0xc6/0x1e0
[  303.572081][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  303.572081][   T73] 
[  303.574233][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  303.574233][   T73]      netdev_get_by_index+0x5e/0x80
[  303.574233][   T73]      fib6_nh_init+0x3d8/0x1580
[  303.574233][   T73]      ip6_route_info_create+0xf18/0x17d0
[  303.574233][   T73]      addrconf_f6i_alloc+0x315/0x560
[  303.574233][   T73]      ipv6_add_addr+0x411/0x2000
[  303.574233][   T73]      inet6_addr_add+0x30e/0xa40
[  303.574233][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  303.574233][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  303.574233][   T73]      netlink_rcv_skb+0x130/0x360
[  303.574233][   T73]      netlink_unicast+0x449/0x710
[  303.574233][   T73]      netlink_sendmsg+0x723/0xbe0
[  303.574233][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  303.574233][   T73]      ___sys_sendmsg+0xee/0x170
[  303.574233][   T73]      __sys_sendmsg+0xcd/0x170
[  303.574233][   T73]      do_syscall_64+0xc6/0x1e0
[  303.574233][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  303.574233][   T73] 
[  303.576263][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  303.576263][   T73]      netdev_get_by_index+0x5e/0x80
[  303.576263][   T73]      fib6_nh_init+0x3d8/0x1580
[  303.576263][   T73]      ip6_route_info_create+0xf18/0x17d0
[  303.576263][   T73]      ip6_route_add+0x1c/0x140
[  303.576263][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  303.576263][   T73]      addrconf_add_dev+0xe2/0x170
[  303.576263][   T73]      inet6_addr_add+0x12f/0xa40
[  303.576263][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  303.576263][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  303.576263][   T73]      netlink_rcv_skb+0x130/0x360
[  303.576263][   T73]      netlink_unicast+0x449/0x710
[  303.576263][   T73]      netlink_sendmsg+0x723/0xbe0
[  303.576263][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  303.576263][   T73]      ___sys_sendmsg+0xee/0x170
[  303.576263][   T73]      __sys_sendmsg+0xcd/0x170
[  303.576263][   T73]      do_syscall_64+0xc6/0x1e0
[  303.576263][   T73] 
[  303.578263][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  303.578263][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  303.578263][   T73]      ipv6_find_idev+0x102/0x170
[  303.578263][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  303.578263][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  303.578263][   T73]      netlink_rcv_skb+0x130/0x360
[  303.578263][   T73]      netlink_unicast+0x449/0x710
[  303.578263][   T73]      netlink_sendmsg+0x723/0xbe0
[  303.578263][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  303.578263][   T73]      ___sys_sendmsg+0xee/0x170
[  303.578263][   T73]      __sys_sendmsg+0xcd/0x170
[  303.578263][   T73]      do_syscall_64+0xc6/0x1e0
[  303.578263][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  303.578263][   T73] 
[  303.579817][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  303.579817][   T73]      neigh_parms_alloc+0x1e5/0x510
[  303.579817][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  303.579817][   T73]      ipv6_find_idev+0x102/0x170
[  303.579817][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  303.579817][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  303.579817][   T73]      netlink_rcv_skb+0x130/0x360
[  303.579817][   T73]      netlink_unicast+0x449/0x710
[  303.579817][   T73]      netlink_sendmsg+0x723/0xbe0
[  303.579817][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  303.579817][   T73]      ___sys_sendmsg+0xee/0x170
[  303.579817][   T73]      __sys_sendmsg+0xcd/0x170
[  303.579817][   T73]      do_syscall_64+0xc6/0x1e0
[  303.579817][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  303.579817][   T73] 
[  303.581553][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  303.581858][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  303.581858][   T73]      netdev_get_by_index+0x5e/0x80
[  303.581858][   T73]      fib6_nh_init+0x3d8/0x1580
[  303.581858][   T73]      ip6_route_info_create+0xf18/0x17d0
[  303.581858][   T73]      addrconf_f6i_alloc+0x265/0x560
[  303.581858][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  303.581858][   T73]      addrconf_join_anycast+0x1c0/0x220
[  303.581858][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  303.581858][   T73]      addrconf_dad_completed+0x12b/0xe20
[  303.581858][   T73]      addrconf_dad_begin+0x310/0x670
[  303.581858][   T73]      addrconf_dad_work+0x10b/0xab0
[  303.581858][   T73]      process_one_work+0x84d/0x18a0
[  303.581858][   T73]      worker_thread+0x587/0xd30
[  303.581858][   T73]      kthread+0x28a/0x350
[  303.581858][   T73]      ret_from_fork+0x31/0x70
[  303.581858][   T73]      ret_from_fork_asm+0x1a/0x30
[  303.581858][   T73] 
[  303.583775][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  303.583775][   T73]      netdev_get_by_index+0x5e/0x80
[  303.583775][   T73]      fib6_nh_init+0x3d8/0x1580
[  303.583775][   T73]      ip6_route_info_create+0xf18/0x17d0
[  303.583775][   T73]      ip6_route_add+0x1c/0x140
[  303.583775][   T73]      addrconf_prefix_route+0x2a6/0x430
[  303.583775][   T73]      inet6_addr_add+0x4f8/0xa40
[  303.583775][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  303.583775][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  303.583775][   T73]      netlink_rcv_skb+0x130/0x360
[  303.583775][   T73]      netlink_unicast+0x449/0x710
[  303.583775][   T73]      netlink_sendmsg+0x723/0xbe0
[  303.583775][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  303.583775][   T73]      ___sys_sendmsg+0xee/0x170
[  303.583775][   T73]      __sys_sendmsg+0xcd/0x170
[  303.583775][   T73]      do_syscall_64+0xc6/0x1e0
[  303.583775][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  303.583775][   T73] 
[  303.585821][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  303.585821][   T73]      netdev_get_by_index+0x5e/0x80
[  303.585821][   T73]      fib6_nh_init+0x3d8/0x1580
[  303.585821][   T73]      ip6_route_info_create+0xf18/0x17d0
[  303.585821][   T73]      addrconf_f6i_alloc+0x315/0x560
[  303.585821][   T73]      ipv6_add_addr+0x411/0x2000
[  303.585821][   T73]      inet6_addr_add+0x30e/0xa40
[  303.585821][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  303.585821][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  303.585821][   T73]      netlink_rcv_skb+0x130/0x360
[  303.585821][   T73]      netlink_unicast+0x449/0x710
[  303.585821][   T73]      netlink_sendmsg+0x723/0xbe0
[  303.585821][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  303.585821][   T73]      ___sys_sendmsg+0xee/0x170
[  303.585821][   T73]      __sys_sendmsg+0xcd/0x170
[  303.585821][   T73]      do_syscall_64+0xc6/0x1e0
[  303.585821][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  303.585821][   T73] 
[  303.587871][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  303.587871][   T73]      netdev_get_by_index+0x5e/0x80
[  303.587871][   T73]      fib6_nh_init+0x3d8/0x1580
[  303.587871][   T73]      ip6_route_info_create+0xf18/0x17d0
[  303.587871][   T73]      ip6_route_add+0x1c/0x140
[  303.587871][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  303.587871][   T73]      addrconf_add_dev+0xe2/0x170
[  303.587871][   T73]      inet6_addr_add+0x12f/0xa40
[  303.587871][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  303.587871][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  303.587871][   T73]      netlink_rcv_skb+0x130/0x360
[  303.587871][   T73]      netlink_unicast+0x449/0x710
[  303.587871][   T73]      netlink_sendmsg+0x723/0xbe0
[  303.587871][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  303.587871][   T73]      ___sys_sendmsg+0xee/0x170
[  303.587871][   T73]      __sys_sendmsg+0xcd/0x170
[  303.587871][   T73]      do_syscall_64+0xc6/0x1e0
[  303.587871][   T73] 
[  303.590199][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  303.590199][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  303.590199][   T73]      ipv6_find_idev+0x102/0x170
[  303.590199][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  303.590199][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  303.590199][   T73]      netlink_rcv_skb+0x130/0x360
[  303.590199][   T73]      netlink_unicast+0x449/0x710
[  303.590199][   T73]      netlink_sendmsg+0x723/0xbe0
[  303.590199][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  303.590199][   T73]      ___sys_sendmsg+0xee/0x170
[  303.590199][   T73]      __sys_sendmsg+0xcd/0x170
[  303.590199][   T73]      do_syscall_64+0xc6/0x1e0
[  303.590199][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  303.590199][   T73] 
[  303.592017][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  303.592017][   T73]      neigh_parms_alloc+0x1e5/0x510
[  303.592017][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  303.592017][   T73]      ipv6_find_idev+0x102/0x170
[  303.592017][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  303.592017][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  303.592017][   T73]      netlink_rcv_skb+0x130/0x360
[  303.592017][   T73]      netlink_unicast+0x449/0x710
[  303.592017][   T73]      netlink_sendmsg+0x723/0xbe0
[  303.592017][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  303.592017][   T73]      ___sys_sendmsg+0xee/0x170
[  303.592017][   T73]      __sys_sendmsg+0xcd/0x170
[  303.592017][   T73]      do_syscall_64+0xc6/0x1e0
[  303.592017][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  303.592017][   T73] 
[  303.594096][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  303.594430][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  303.594430][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  303.594430][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  303.594430][   T73]      fib6_nh_init+0xa22/0x1580
[  303.594430][   T73]      ip6_route_info_create+0xf18/0x17d0
[  303.594430][   T73]      ip6_route_add+0x1c/0x140
[  303.594430][   T73]      inet6_rtm_newroute+0x104/0x110
[  303.594430][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  303.594430][   T73]      netlink_rcv_skb+0x130/0x360
[  303.594430][   T73]      netlink_unicast+0x449/0x710
[  303.594430][   T73]      netlink_sendmsg+0x723/0xbe0
[  303.594430][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  303.594430][   T73]      ___sys_sendmsg+0xee/0x170
[  303.594430][   T73]      __sys_sendmsg+0xcd/0x170
[  303.594430][   T73]      do_syscall_64+0xc6/0x1e0
[  303.594430][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  303.594430][   T73] 
[  303.596793][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  303.596793][   T73]      dst_init+0x84/0x4a0
[  303.596793][   T73]      dst_alloc+0x97/0x150
[  303.596793][   T73]      ip6_dst_alloc+0x23/0x90
[  303.596793][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  303.596793][   T73]      ip6_pol_route+0x56f/0x840
[  303.596793][   T73]      fib6_rule_lookup+0x456/0x630
[  303.596793][   T73]      ip6_route_input+0x59c/0xa50
[  303.596793][   T73]      ipv6_rcv+0x397/0x810
[  303.596793][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  303.596793][   T73]      process_backlog+0x101/0x620
[  303.596793][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  303.596793][   T73]      net_rx_action+0x495/0xbe0
[  303.596793][   T73]      __do_softirq+0x1b5/0x7f6
[  303.596793][   T73] 
[  303.598918][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  303.598918][   T73]      netdev_get_by_index+0x5e/0x80
[  303.598918][   T73]      fib6_nh_init+0x3d8/0x1580
[  303.598918][   T73]      ip6_route_info_create+0xf18/0x17d0
[  303.598918][   T73]      ip6_route_add+0x1c/0x140
[  303.598918][   T73]      addrconf_prefix_route+0x2a6/0x430
[  303.598918][   T73]      inet6_addr_add+0x4f8/0xa40
[  303.598918][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  303.598918][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  303.598918][   T73]      netlink_rcv_skb+0x130/0x360
[  303.598918][   T73]      netlink_unicast+0x449/0x710
[  303.598918][   T73]      netlink_sendmsg+0x723/0xbe0
[  303.598918][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  303.598918][   T73]      ___sys_sendmsg+0xee/0x170
[  303.598918][   T73]      __sys_sendmsg+0xcd/0x170
[  303.598918][   T73]      do_syscall_64+0xc6/0x1e0
[  303.598918][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  303.598918][   T73] 
[  303.601428][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  303.601428][   T73]      netdev_get_by_index+0x5e/0x80
[  303.601428][   T73]      fib6_nh_init+0x3d8/0x1580
[  303.601428][   T73]      ip6_route_info_create+0xf18/0x17d0
[  303.601428][   T73]      addrconf_f6i_alloc+0x315/0x560
[  303.601428][   T73]      ipv6_add_addr+0x411/0x2000
[  303.601428][   T73]      inet6_addr_add+0x30e/0xa40
[  303.601428][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  303.601428][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  303.601428][   T73]      netlink_rcv_skb+0x130/0x360
[  303.601428][   T73]      netlink_unicast+0x449/0x710
[  303.601428][   T73]      netlink_sendmsg+0x723/0xbe0
[  303.601428][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  303.601428][   T73]      ___sys_sendmsg+0xee/0x170
[  303.601428][   T73]      __sys_sendmsg+0xcd/0x170
[  303.601428][   T73]      do_syscall_64+0xc6/0x1e0
[  303.601428][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  303.601428][   T73] 
[  303.603937][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  303.603937][   T73]      netdev_get_by_index+0x5e/0x80
[  303.603937][   T73]      fib6_nh_init+0x3d8/0x1580
[  303.603937][   T73]      ip6_route_info_create+0xf18/0x17d0
[  303.603937][   T73]      ip6_route_add+0x1c/0x140
[  303.603937][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  303.603937][   T73]      addrconf_add_dev+0xe2/0x170
[  303.603937][   T73]      inet6_addr_add+0x12f/0xa40
[  303.603937][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  303.603937][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  303.603937][   T73]      netlink_rcv_skb+0x130/0x360
[  303.603937][   T73]      netlink_unicast+0x449/0x710
[  303.603937][   T73]      netlink_sendmsg+0x723/0xbe0
[  303.603937][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  303.603937][   T73]      ___sys_sendmsg+0xee/0x170
[  303.603937][   T73]      __sys_sendmsg+0xcd/0x170
[  303.603937][   T73]      do_syscall_64+0xc6/0x1e0
[  303.603937][   T73] 
[  303.606481][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  303.606481][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  303.606481][   T73]      ipv6_find_idev+0x102/0x170
[  303.606481][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  303.606481][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  303.606481][   T73]      netlink_rcv_skb+0x130/0x360
[  303.606481][   T73]      netlink_unicast+0x449/0x710
[  303.606481][   T73]      netlink_sendmsg+0x723/0xbe0
[  303.606481][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  303.606481][   T73]      ___sys_sendmsg+0xee/0x170
[  303.606481][   T73]      __sys_sendmsg+0xcd/0x170
[  303.606481][   T73]      do_syscall_64+0xc6/0x1e0
[  303.606481][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  303.606481][   T73] 
[  303.608458][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  303.608458][   T73]      neigh_parms_alloc+0x1e5/0x510
[  303.608458][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  303.608458][   T73]      ipv6_find_idev+0x102/0x170
[  303.608458][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  303.608458][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  303.608458][   T73]      netlink_rcv_skb+0x130/0x360
[  303.608458][   T73]      netlink_unicast+0x449/0x710
[  303.608458][   T73]      netlink_sendmsg+0x723/0xbe0
[  303.608458][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  303.608458][   T73]      ___sys_sendmsg+0xee/0x170
[  303.608458][   T73]      __sys_sendmsg+0xcd/0x170
[  303.608458][   T73]      do_syscall_64+0xc6/0x1e0
[  303.608458][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  303.608458][   T73] 
[  303.610527][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  303.611279][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  303.611279][   T73]      netdev_get_by_index+0x5e/0x80
[  303.611279][   T73]      fib6_nh_init+0x3d8/0x1580
[  303.611279][   T73]      ip6_route_info_create+0xf18/0x17d0
[  303.611279][   T73]      addrconf_f6i_alloc+0x265/0x560
[  303.611279][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  303.611279][   T73]      addrconf_join_anycast+0x1c0/0x220
[  303.611279][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  303.611279][   T73]      addrconf_dad_completed+0x12b/0xe20
[  303.611279][   T73]      addrconf_dad_begin+0x310/0x670
[  303.611279][   T73]      addrconf_dad_work+0x10b/0xab0
[  303.611279][   T73]      process_one_work+0x84d/0x18a0
[  303.611279][   T73]      worker_thread+0x587/0xd30
[  303.611279][   T73]      kthread+0x28a/0x350
[  303.611279][   T73]      ret_from_fork+0x31/0x70
[  303.611279][   T73]      ret_from_fork_asm+0x1a/0x30
[  303.611279][   T73] 
[  303.613382][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  303.613382][   T73]      netdev_get_by_index+0x5e/0x80
[  303.613382][   T73]      fib6_nh_init+0x3d8/0x1580
[  303.613382][   T73]      ip6_route_info_create+0xf18/0x17d0
[  303.613382][   T73]      ip6_route_add+0x1c/0x140
[  303.613382][   T73]      addrconf_prefix_route+0x2a6/0x430
[  303.613382][   T73]      inet6_addr_add+0x4f8/0xa40
[  303.613382][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  303.613382][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  303.613382][   T73]      netlink_rcv_skb+0x130/0x360
[  303.613382][   T73]      netlink_unicast+0x449/0x710
[  303.613382][   T73]      netlink_sendmsg+0x723/0xbe0
[  303.613382][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  303.613382][   T73]      ___sys_sendmsg+0xee/0x170
[  303.613382][   T73]      __sys_sendmsg+0xcd/0x170
[  303.613382][   T73]      do_syscall_64+0xc6/0x1e0
[  303.613382][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  303.613382][   T73] 
[  303.615748][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  303.615748][   T73]      netdev_get_by_index+0x5e/0x80
[  303.615748][   T73]      fib6_nh_init+0x3d8/0x1580
[  303.615748][   T73]      ip6_route_info_create+0xf18/0x17d0
[  303.615748][   T73]      addrconf_f6i_alloc+0x315/0x560
[  303.615748][   T73]      ipv6_add_addr+0x411/0x2000
[  303.615748][   T73]      inet6_addr_add+0x30e/0xa40
[  303.615748][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  303.615748][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  303.615748][   T73]      netlink_rcv_skb+0x130/0x360
[  303.615748][   T73]      netlink_unicast+0x449/0x710
[  303.615748][   T73]      netlink_sendmsg+0x723/0xbe0
[  303.615748][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  303.615748][   T73]      ___sys_sendmsg+0xee/0x170
[  303.615748][   T73]      __sys_sendmsg+0xcd/0x170
[  303.615748][   T73]      do_syscall_64+0xc6/0x1e0
[  303.615748][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  303.615748][   T73] 
[  303.618199][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  303.618199][   T73]      netdev_get_by_index+0x5e/0x80
[  303.618199][   T73]      fib6_nh_init+0x3d8/0x1580
[  303.618199][   T73]      ip6_route_info_create+0xf18/0x17d0
[  303.618199][   T73]      ip6_route_add+0x1c/0x140
[  303.618199][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  303.618199][   T73]      addrconf_add_dev+0xe2/0x170
[  303.618199][   T73]      inet6_addr_add+0x12f/0xa40
[  303.618199][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  303.618199][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  303.618199][   T73]      netlink_rcv_skb+0x130/0x360
[  303.618199][   T73]      netlink_unicast+0x449/0x710
[  303.618199][   T73]      netlink_sendmsg+0x723/0xbe0
[  303.618199][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  303.618199][   T73]      ___sys_sendmsg+0xee/0x170
[  303.618199][   T73]      __sys_sendmsg+0xcd/0x170
[  303.618199][   T73]      do_syscall_64+0xc6/0x1e0
[  303.618199][   T73] 
[  303.620545][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  303.620545][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  303.620545][   T73]      ipv6_find_idev+0x102/0x170
[  303.620545][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  303.620545][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  303.620545][   T73]      netlink_rcv_skb+0x130/0x360
[  303.620545][   T73]      netlink_unicast+0x449/0x710
[  303.620545][   T73]      netlink_sendmsg+0x723/0xbe0
[  303.620545][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  303.620545][   T73]      ___sys_sendmsg+0xee/0x170
[  303.620545][   T73]      __sys_sendmsg+0xcd/0x170
[  303.620545][   T73]      do_syscall_64+0xc6/0x1e0
[  303.620545][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  303.620545][   T73] 
[  303.622487][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  303.622487][   T73]      neigh_parms_alloc+0x1e5/0x510
[  303.622487][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  303.622487][   T73]      ipv6_find_idev+0x102/0x170
[  303.622487][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  303.622487][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  303.622487][   T73]      netlink_rcv_skb+0x130/0x360
[  303.622487][   T73]      netlink_unicast+0x449/0x710
[  303.622487][   T73]      netlink_sendmsg+0x723/0xbe0
[  303.622487][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  303.622487][   T73]      ___sys_sendmsg+0xee/0x170
[  303.622487][   T73]      __sys_sendmsg+0xcd/0x170
[  303.622487][   T73]      do_syscall_64+0xc6/0x1e0
[  303.622487][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  303.622487][   T73] 
[  313.727783][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  313.728229][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  313.728229][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  313.728229][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  313.728229][   T73]      fib6_nh_init+0xa22/0x1580
[  313.728229][   T73]      ip6_route_info_create+0xf18/0x17d0
[  313.728229][   T73]      ip6_route_add+0x1c/0x140
[  313.728229][   T73]      inet6_rtm_newroute+0x104/0x110
[  313.728229][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  313.728229][   T73]      netlink_rcv_skb+0x130/0x360
[  313.728229][   T73]      netlink_unicast+0x449/0x710
[  313.728229][   T73]      netlink_sendmsg+0x723/0xbe0
[  313.728229][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  313.728229][   T73]      ___sys_sendmsg+0xee/0x170
[  313.728229][   T73]      __sys_sendmsg+0xcd/0x170
[  313.728229][   T73]      do_syscall_64+0xc6/0x1e0
[  313.728229][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  313.728229][   T73] 
[  313.730634][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  313.730634][   T73]      dst_init+0x84/0x4a0
[  313.730634][   T73]      dst_alloc+0x97/0x150
[  313.730634][   T73]      ip6_dst_alloc+0x23/0x90
[  313.730634][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  313.730634][   T73]      ip6_pol_route+0x56f/0x840
[  313.730634][   T73]      fib6_rule_lookup+0x456/0x630
[  313.730634][   T73]      ip6_route_input+0x59c/0xa50
[  313.730634][   T73]      ipv6_rcv+0x397/0x810
[  313.730634][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  313.730634][   T73]      process_backlog+0x101/0x620
[  313.730634][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  313.730634][   T73]      net_rx_action+0x495/0xbe0
[  313.730634][   T73]      __do_softirq+0x1b5/0x7f6
[  313.730634][   T73] 
[  313.732310][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  313.732310][   T73]      netdev_get_by_index+0x5e/0x80
[  313.732310][   T73]      fib6_nh_init+0x3d8/0x1580
[  313.732310][   T73]      ip6_route_info_create+0xf18/0x17d0
[  313.732310][   T73]      ip6_route_add+0x1c/0x140
[  313.732310][   T73]      addrconf_prefix_route+0x2a6/0x430
[  313.732310][   T73]      inet6_addr_add+0x4f8/0xa40
[  313.732310][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  313.732310][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  313.732310][   T73]      netlink_rcv_skb+0x130/0x360
[  313.732310][   T73]      netlink_unicast+0x449/0x710
[  313.732310][   T73]      netlink_sendmsg+0x723/0xbe0
[  313.732310][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  313.732310][   T73]      ___sys_sendmsg+0xee/0x170
[  313.732310][   T73]      __sys_sendmsg+0xcd/0x170
[  313.732310][   T73]      do_syscall_64+0xc6/0x1e0
[  313.732310][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  313.732310][   T73] 
[  313.734407][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  313.734407][   T73]      netdev_get_by_index+0x5e/0x80
[  313.734407][   T73]      fib6_nh_init+0x3d8/0x1580
[  313.734407][   T73]      ip6_route_info_create+0xf18/0x17d0
[  313.734407][   T73]      addrconf_f6i_alloc+0x315/0x560
[  313.734407][   T73]      ipv6_add_addr+0x411/0x2000
[  313.734407][   T73]      inet6_addr_add+0x30e/0xa40
[  313.734407][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  313.734407][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  313.734407][   T73]      netlink_rcv_skb+0x130/0x360
[  313.734407][   T73]      netlink_unicast+0x449/0x710
[  313.734407][   T73]      netlink_sendmsg+0x723/0xbe0
[  313.734407][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  313.734407][   T73]      ___sys_sendmsg+0xee/0x170
[  313.734407][   T73]      __sys_sendmsg+0xcd/0x170
[  313.734407][   T73]      do_syscall_64+0xc6/0x1e0
[  313.734407][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  313.734407][   T73] 
[  313.736439][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  313.736439][   T73]      netdev_get_by_index+0x5e/0x80
[  313.736439][   T73]      fib6_nh_init+0x3d8/0x1580
[  313.736439][   T73]      ip6_route_info_create+0xf18/0x17d0
[  313.736439][   T73]      ip6_route_add+0x1c/0x140
[  313.736439][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  313.736439][   T73]      addrconf_add_dev+0xe2/0x170
[  313.736439][   T73]      inet6_addr_add+0x12f/0xa40
[  313.736439][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  313.736439][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  313.736439][   T73]      netlink_rcv_skb+0x130/0x360
[  313.736439][   T73]      netlink_unicast+0x449/0x710
[  313.736439][   T73]      netlink_sendmsg+0x723/0xbe0
[  313.736439][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  313.736439][   T73]      ___sys_sendmsg+0xee/0x170
[  313.736439][   T73]      __sys_sendmsg+0xcd/0x170
[  313.736439][   T73]      do_syscall_64+0xc6/0x1e0
[  313.736439][   T73] 
[  313.738506][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  313.738506][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  313.738506][   T73]      ipv6_find_idev+0x102/0x170
[  313.738506][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  313.738506][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  313.738506][   T73]      netlink_rcv_skb+0x130/0x360
[  313.738506][   T73]      netlink_unicast+0x449/0x710
[  313.738506][   T73]      netlink_sendmsg+0x723/0xbe0
[  313.738506][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  313.738506][   T73]      ___sys_sendmsg+0xee/0x170
[  313.738506][   T73]      __sys_sendmsg+0xcd/0x170
[  313.738506][   T73]      do_syscall_64+0xc6/0x1e0
[  313.738506][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  313.738506][   T73] 
[  313.740255][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  313.740255][   T73]      neigh_parms_alloc+0x1e5/0x510
[  313.740255][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  313.740255][   T73]      ipv6_find_idev+0x102/0x170
[  313.740255][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  313.740255][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  313.740255][   T73]      netlink_rcv_skb+0x130/0x360
[  313.740255][   T73]      netlink_unicast+0x449/0x710
[  313.740255][   T73]      netlink_sendmsg+0x723/0xbe0
[  313.740255][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  313.740255][   T73]      ___sys_sendmsg+0xee/0x170
[  313.740255][   T73]      __sys_sendmsg+0xcd/0x170
[  313.740255][   T73]      do_syscall_64+0xc6/0x1e0
[  313.740255][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  313.740255][   T73] 
[  313.742213][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  313.742534][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  313.742534][   T73]      netdev_get_by_index+0x5e/0x80
[  313.742534][   T73]      fib6_nh_init+0x3d8/0x1580
[  313.742534][   T73]      ip6_route_info_create+0xf18/0x17d0
[  313.742534][   T73]      addrconf_f6i_alloc+0x265/0x560
[  313.742534][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  313.742534][   T73]      addrconf_join_anycast+0x1c0/0x220
[  313.742534][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  313.742534][   T73]      addrconf_dad_completed+0x12b/0xe20
[  313.742534][   T73]      addrconf_dad_begin+0x310/0x670
[  313.742534][   T73]      addrconf_dad_work+0x10b/0xab0
[  313.742534][   T73]      process_one_work+0x84d/0x18a0
[  313.742534][   T73]      worker_thread+0x587/0xd30
[  313.742534][   T73]      kthread+0x28a/0x350
[  313.742534][   T73]      ret_from_fork+0x31/0x70
[  313.742534][   T73]      ret_from_fork_asm+0x1a/0x30
[  313.742534][   T73] 
[  313.744681][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  313.744681][   T73]      netdev_get_by_index+0x5e/0x80
[  313.744681][   T73]      fib6_nh_init+0x3d8/0x1580
[  313.744681][   T73]      ip6_route_info_create+0xf18/0x17d0
[  313.744681][   T73]      ip6_route_add+0x1c/0x140
[  313.744681][   T73]      addrconf_prefix_route+0x2a6/0x430
[  313.744681][   T73]      inet6_addr_add+0x4f8/0xa40
[  313.744681][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  313.744681][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  313.744681][   T73]      netlink_rcv_skb+0x130/0x360
[  313.744681][   T73]      netlink_unicast+0x449/0x710
[  313.744681][   T73]      netlink_sendmsg+0x723/0xbe0
[  313.744681][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  313.744681][   T73]      ___sys_sendmsg+0xee/0x170
[  313.744681][   T73]      __sys_sendmsg+0xcd/0x170
[  313.744681][   T73]      do_syscall_64+0xc6/0x1e0
[  313.744681][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  313.744681][   T73] 
[  313.746723][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  313.746723][   T73]      netdev_get_by_index+0x5e/0x80
[  313.746723][   T73]      fib6_nh_init+0x3d8/0x1580
[  313.746723][   T73]      ip6_route_info_create+0xf18/0x17d0
[  313.746723][   T73]      addrconf_f6i_alloc+0x315/0x560
[  313.746723][   T73]      ipv6_add_addr+0x411/0x2000
[  313.746723][   T73]      inet6_addr_add+0x30e/0xa40
[  313.746723][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  313.746723][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  313.746723][   T73]      netlink_rcv_skb+0x130/0x360
[  313.746723][   T73]      netlink_unicast+0x449/0x710
[  313.746723][   T73]      netlink_sendmsg+0x723/0xbe0
[  313.746723][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  313.746723][   T73]      ___sys_sendmsg+0xee/0x170
[  313.746723][   T73]      __sys_sendmsg+0xcd/0x170
[  313.746723][   T73]      do_syscall_64+0xc6/0x1e0
[  313.746723][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  313.746723][   T73] 
[  313.748761][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  313.748761][   T73]      netdev_get_by_index+0x5e/0x80
[  313.748761][   T73]      fib6_nh_init+0x3d8/0x1580
[  313.748761][   T73]      ip6_route_info_create+0xf18/0x17d0
[  313.748761][   T73]      ip6_route_add+0x1c/0x140
[  313.748761][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  313.748761][   T73]      addrconf_add_dev+0xe2/0x170
[  313.748761][   T73]      inet6_addr_add+0x12f/0xa40
[  313.748761][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  313.748761][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  313.748761][   T73]      netlink_rcv_skb+0x130/0x360
[  313.748761][   T73]      netlink_unicast+0x449/0x710
[  313.748761][   T73]      netlink_sendmsg+0x723/0xbe0
[  313.748761][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  313.748761][   T73]      ___sys_sendmsg+0xee/0x170
[  313.748761][   T73]      __sys_sendmsg+0xcd/0x170
[  313.748761][   T73]      do_syscall_64+0xc6/0x1e0
[  313.748761][   T73] 
[  313.750760][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  313.750760][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  313.750760][   T73]      ipv6_find_idev+0x102/0x170
[  313.750760][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  313.750760][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  313.750760][   T73]      netlink_rcv_skb+0x130/0x360
[  313.750760][   T73]      netlink_unicast+0x449/0x710
[  313.750760][   T73]      netlink_sendmsg+0x723/0xbe0
[  313.750760][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  313.750760][   T73]      ___sys_sendmsg+0xee/0x170
[  313.750760][   T73]      __sys_sendmsg+0xcd/0x170
[  313.750760][   T73]      do_syscall_64+0xc6/0x1e0
[  313.750760][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  313.750760][   T73] 
[  313.752330][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  313.752330][   T73]      neigh_parms_alloc+0x1e5/0x510
[  313.752330][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  313.752330][   T73]      ipv6_find_idev+0x102/0x170
[  313.752330][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  313.752330][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  313.752330][   T73]      netlink_rcv_skb+0x130/0x360
[  313.752330][   T73]      netlink_unicast+0x449/0x710
[  313.752330][   T73]      netlink_sendmsg+0x723/0xbe0
[  313.752330][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  313.752330][   T73]      ___sys_sendmsg+0xee/0x170
[  313.752330][   T73]      __sys_sendmsg+0xcd/0x170
[  313.752330][   T73]      do_syscall_64+0xc6/0x1e0
[  313.752330][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  313.752330][   T73] 
[  313.754096][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  313.754369][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  313.754369][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  313.754369][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  313.754369][   T73]      fib6_nh_init+0xa22/0x1580
[  313.754369][   T73]      ip6_route_info_create+0xf18/0x17d0
[  313.754369][   T73]      ip6_route_add+0x1c/0x140
[  313.754369][   T73]      inet6_rtm_newroute+0x104/0x110
[  313.754369][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  313.754369][   T73]      netlink_rcv_skb+0x130/0x360
[  313.754369][   T73]      netlink_unicast+0x449/0x710
[  313.754369][   T73]      netlink_sendmsg+0x723/0xbe0
[  313.754369][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  313.754369][   T73]      ___sys_sendmsg+0xee/0x170
[  313.754369][   T73]      __sys_sendmsg+0xcd/0x170
[  313.754369][   T73]      do_syscall_64+0xc6/0x1e0
[  313.754369][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  313.754369][   T73] 
[  313.756442][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  313.756442][   T73]      dst_init+0x84/0x4a0
[  313.756442][   T73]      dst_alloc+0x97/0x150
[  313.756442][   T73]      ip6_dst_alloc+0x23/0x90
[  313.756442][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  313.756442][   T73]      ip6_pol_route+0x56f/0x840
[  313.756442][   T73]      fib6_rule_lookup+0x456/0x630
[  313.756442][   T73]      ip6_route_input+0x59c/0xa50
[  313.756442][   T73]      ipv6_rcv+0x397/0x810
[  313.756442][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  313.756442][   T73]      process_backlog+0x101/0x620
[  313.756442][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  313.756442][   T73]      net_rx_action+0x495/0xbe0
[  313.756442][   T73]      __do_softirq+0x1b5/0x7f6
[  313.756442][   T73] 
[  313.758330][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  313.758330][   T73]      netdev_get_by_index+0x5e/0x80
[  313.758330][   T73]      fib6_nh_init+0x3d8/0x1580
[  313.758330][   T73]      ip6_route_info_create+0xf18/0x17d0
[  313.758330][   T73]      ip6_route_add+0x1c/0x140
[  313.758330][   T73]      addrconf_prefix_route+0x2a6/0x430
[  313.758330][   T73]      inet6_addr_add+0x4f8/0xa40
[  313.758330][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  313.758330][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  313.758330][   T73]      netlink_rcv_skb+0x130/0x360
[  313.758330][   T73]      netlink_unicast+0x449/0x710
[  313.758330][   T73]      netlink_sendmsg+0x723/0xbe0
[  313.758330][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  313.758330][   T73]      ___sys_sendmsg+0xee/0x170
[  313.758330][   T73]      __sys_sendmsg+0xcd/0x170
[  313.758330][   T73]      do_syscall_64+0xc6/0x1e0
[  313.758330][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  313.758330][   T73] 
[  313.760572][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  313.760572][   T73]      netdev_get_by_index+0x5e/0x80
[  313.760572][   T73]      fib6_nh_init+0x3d8/0x1580
[  313.760572][   T73]      ip6_route_info_create+0xf18/0x17d0
[  313.760572][   T73]      addrconf_f6i_alloc+0x315/0x560
[  313.760572][   T73]      ipv6_add_addr+0x411/0x2000
[  313.760572][   T73]      inet6_addr_add+0x30e/0xa40
[  313.760572][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  313.760572][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  313.760572][   T73]      netlink_rcv_skb+0x130/0x360
[  313.760572][   T73]      netlink_unicast+0x449/0x710
[  313.760572][   T73]      netlink_sendmsg+0x723/0xbe0
[  313.760572][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  313.760572][   T73]      ___sys_sendmsg+0xee/0x170
[  313.760572][   T73]      __sys_sendmsg+0xcd/0x170
[  313.760572][   T73]      do_syscall_64+0xc6/0x1e0
[  313.760572][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  313.760572][   T73] 
[  313.762810][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  313.762810][   T73]      netdev_get_by_index+0x5e/0x80
[  313.762810][   T73]      fib6_nh_init+0x3d8/0x1580
[  313.762810][   T73]      ip6_route_info_create+0xf18/0x17d0
[  313.762810][   T73]      ip6_route_add+0x1c/0x140
[  313.762810][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  313.762810][   T73]      addrconf_add_dev+0xe2/0x170
[  313.762810][   T73]      inet6_addr_add+0x12f/0xa40
[  313.762810][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  313.762810][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  313.762810][   T73]      netlink_rcv_skb+0x130/0x360
[  313.762810][   T73]      netlink_unicast+0x449/0x710
[  313.762810][   T73]      netlink_sendmsg+0x723/0xbe0
[  313.762810][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  313.762810][   T73]      ___sys_sendmsg+0xee/0x170
[  313.762810][   T73]      __sys_sendmsg+0xcd/0x170
[  313.762810][   T73]      do_syscall_64+0xc6/0x1e0
[  313.762810][   T73] 
[  313.765887][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  313.765887][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  313.765887][   T73]      ipv6_find_idev+0x102/0x170
[  313.765887][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  313.765887][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  313.765887][   T73]      netlink_rcv_skb+0x130/0x360
[  313.765887][   T73]      netlink_unicast+0x449/0x710
[  313.765887][   T73]      netlink_sendmsg+0x723/0xbe0
[  313.765887][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  313.765887][   T73]      ___sys_sendmsg+0xee/0x170
[  313.765887][   T73]      __sys_sendmsg+0xcd/0x170
[  313.765887][   T73]      do_syscall_64+0xc6/0x1e0
[  313.765887][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  313.765887][   T73] 
[  313.768659][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  313.768659][   T73]      neigh_parms_alloc+0x1e5/0x510
[  313.768659][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  313.768659][   T73]      ipv6_find_idev+0x102/0x170
[  313.768659][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  313.768659][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  313.768659][   T73]      netlink_rcv_skb+0x130/0x360
[  313.768659][   T73]      netlink_unicast+0x449/0x710
[  313.768659][   T73]      netlink_sendmsg+0x723/0xbe0
[  313.768659][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  313.768659][   T73]      ___sys_sendmsg+0xee/0x170
[  313.768659][   T73]      __sys_sendmsg+0xcd/0x170
[  313.768659][   T73]      do_syscall_64+0xc6/0x1e0
[  313.768659][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  313.768659][   T73] 
[  313.771471][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  313.772611][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  313.772611][   T73]      netdev_get_by_index+0x5e/0x80
[  313.772611][   T73]      fib6_nh_init+0x3d8/0x1580
[  313.772611][   T73]      ip6_route_info_create+0xf18/0x17d0
[  313.772611][   T73]      addrconf_f6i_alloc+0x265/0x560
[  313.772611][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  313.772611][   T73]      addrconf_join_anycast+0x1c0/0x220
[  313.772611][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  313.772611][   T73]      addrconf_dad_completed+0x12b/0xe20
[  313.772611][   T73]      addrconf_dad_begin+0x310/0x670
[  313.772611][   T73]      addrconf_dad_work+0x10b/0xab0
[  313.772611][   T73]      process_one_work+0x84d/0x18a0
[  313.772611][   T73]      worker_thread+0x587/0xd30
[  313.772611][   T73]      kthread+0x28a/0x350
[  313.772611][   T73]      ret_from_fork+0x31/0x70
[  313.772611][   T73]      ret_from_fork_asm+0x1a/0x30
[  313.772611][   T73] 
[  313.775420][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  313.775420][   T73]      netdev_get_by_index+0x5e/0x80
[  313.775420][   T73]      fib6_nh_init+0x3d8/0x1580
[  313.775420][   T73]      ip6_route_info_create+0xf18/0x17d0
[  313.775420][   T73]      ip6_route_add+0x1c/0x140
[  313.775420][   T73]      addrconf_prefix_route+0x2a6/0x430
[  313.775420][   T73]      inet6_addr_add+0x4f8/0xa40
[  313.775420][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  313.775420][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  313.775420][   T73]      netlink_rcv_skb+0x130/0x360
[  313.775420][   T73]      netlink_unicast+0x449/0x710
[  313.775420][   T73]      netlink_sendmsg+0x723/0xbe0
[  313.775420][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  313.775420][   T73]      ___sys_sendmsg+0xee/0x170
[  313.775420][   T73]      __sys_sendmsg+0xcd/0x170
[  313.775420][   T73]      do_syscall_64+0xc6/0x1e0
[  313.775420][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  313.775420][   T73] 
[  313.778646][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  313.778646][   T73]      netdev_get_by_index+0x5e/0x80
[  313.778646][   T73]      fib6_nh_init+0x3d8/0x1580
[  313.778646][   T73]      ip6_route_info_create+0xf18/0x17d0
[  313.778646][   T73]      addrconf_f6i_alloc+0x315/0x560
[  313.778646][   T73]      ipv6_add_addr+0x411/0x2000
[  313.778646][   T73]      inet6_addr_add+0x30e/0xa40
[  313.778646][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  313.778646][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  313.778646][   T73]      netlink_rcv_skb+0x130/0x360
[  313.778646][   T73]      netlink_unicast+0x449/0x710
[  313.778646][   T73]      netlink_sendmsg+0x723/0xbe0
[  313.778646][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  313.778646][   T73]      ___sys_sendmsg+0xee/0x170
[  313.778646][   T73]      __sys_sendmsg+0xcd/0x170
[  313.778646][   T73]      do_syscall_64+0xc6/0x1e0
[  313.778646][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  313.778646][   T73] 
[  313.782196][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  313.782196][   T73]      netdev_get_by_index+0x5e/0x80
[  313.782196][   T73]      fib6_nh_init+0x3d8/0x1580
[  313.782196][   T73]      ip6_route_info_create+0xf18/0x17d0
[  313.782196][   T73]      ip6_route_add+0x1c/0x140
[  313.782196][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  313.782196][   T73]      addrconf_add_dev+0xe2/0x170
[  313.782196][   T73]      inet6_addr_add+0x12f/0xa40
[  313.782196][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  313.782196][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  313.782196][   T73]      netlink_rcv_skb+0x130/0x360
[  313.782196][   T73]      netlink_unicast+0x449/0x710
[  313.782196][   T73]      netlink_sendmsg+0x723/0xbe0
[  313.782196][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  313.782196][   T73]      ___sys_sendmsg+0xee/0x170
[  313.782196][   T73]      __sys_sendmsg+0xcd/0x170
[  313.782196][   T73]      do_syscall_64+0xc6/0x1e0
[  313.782196][   T73] 
[  313.785574][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  313.785574][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  313.785574][   T73]      ipv6_find_idev+0x102/0x170
[  313.785574][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  313.785574][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  313.785574][   T73]      netlink_rcv_skb+0x130/0x360
[  313.785574][   T73]      netlink_unicast+0x449/0x710
[  313.785574][   T73]      netlink_sendmsg+0x723/0xbe0
[  313.785574][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  313.785574][   T73]      ___sys_sendmsg+0xee/0x170
[  313.785574][   T73]      __sys_sendmsg+0xcd/0x170
[  313.785574][   T73]      do_syscall_64+0xc6/0x1e0
[  313.785574][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  313.785574][   T73] 
[  313.788299][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  313.788299][   T73]      neigh_parms_alloc+0x1e5/0x510
[  313.788299][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  313.788299][   T73]      ipv6_find_idev+0x102/0x170
[  313.788299][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  313.788299][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  313.788299][   T73]      netlink_rcv_skb+0x130/0x360
[  313.788299][   T73]      netlink_unicast+0x449/0x710
[  313.788299][   T73]      netlink_sendmsg+0x723/0xbe0
[  313.788299][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  313.788299][   T73]      ___sys_sendmsg+0xee/0x170
[  313.788299][   T73]      __sys_sendmsg+0xcd/0x170
[  313.788299][   T73]      do_syscall_64+0xc6/0x1e0
[  313.788299][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  313.788299][   T73] 
[  323.847735][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  323.848209][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  323.848209][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  323.848209][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  323.848209][   T73]      fib6_nh_init+0xa22/0x1580
[  323.848209][   T73]      ip6_route_info_create+0xf18/0x17d0
[  323.848209][   T73]      ip6_route_add+0x1c/0x140
[  323.848209][   T73]      inet6_rtm_newroute+0x104/0x110
[  323.848209][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  323.848209][   T73]      netlink_rcv_skb+0x130/0x360
[  323.848209][   T73]      netlink_unicast+0x449/0x710
[  323.848209][   T73]      netlink_sendmsg+0x723/0xbe0
[  323.848209][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  323.848209][   T73]      ___sys_sendmsg+0xee/0x170
[  323.848209][   T73]      __sys_sendmsg+0xcd/0x170
[  323.848209][   T73]      do_syscall_64+0xc6/0x1e0
[  323.848209][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  323.848209][   T73] 
[  323.850670][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  323.850670][   T73]      dst_init+0x84/0x4a0
[  323.850670][   T73]      dst_alloc+0x97/0x150
[  323.850670][   T73]      ip6_dst_alloc+0x23/0x90
[  323.850670][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  323.850670][   T73]      ip6_pol_route+0x56f/0x840
[  323.850670][   T73]      fib6_rule_lookup+0x456/0x630
[  323.850670][   T73]      ip6_route_input+0x59c/0xa50
[  323.850670][   T73]      ipv6_rcv+0x397/0x810
[  323.850670][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  323.850670][   T73]      process_backlog+0x101/0x620
[  323.850670][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  323.850670][   T73]      net_rx_action+0x495/0xbe0
[  323.850670][   T73]      __do_softirq+0x1b5/0x7f6
[  323.850670][   T73] 
[  323.853355][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  323.853355][   T73]      netdev_get_by_index+0x5e/0x80
[  323.853355][   T73]      fib6_nh_init+0x3d8/0x1580
[  323.853355][   T73]      ip6_route_info_create+0xf18/0x17d0
[  323.853355][   T73]      ip6_route_add+0x1c/0x140
[  323.853355][   T73]      addrconf_prefix_route+0x2a6/0x430
[  323.853355][   T73]      inet6_addr_add+0x4f8/0xa40
[  323.853355][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  323.853355][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  323.853355][   T73]      netlink_rcv_skb+0x130/0x360
[  323.853355][   T73]      netlink_unicast+0x449/0x710
[  323.853355][   T73]      netlink_sendmsg+0x723/0xbe0
[  323.853355][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  323.853355][   T73]      ___sys_sendmsg+0xee/0x170
[  323.853355][   T73]      __sys_sendmsg+0xcd/0x170
[  323.853355][   T73]      do_syscall_64+0xc6/0x1e0
[  323.853355][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  323.853355][   T73] 
[  323.856237][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  323.856237][   T73]      netdev_get_by_index+0x5e/0x80
[  323.856237][   T73]      fib6_nh_init+0x3d8/0x1580
[  323.856237][   T73]      ip6_route_info_create+0xf18/0x17d0
[  323.856237][   T73]      addrconf_f6i_alloc+0x315/0x560
[  323.856237][   T73]      ipv6_add_addr+0x411/0x2000
[  323.856237][   T73]      inet6_addr_add+0x30e/0xa40
[  323.856237][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  323.856237][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  323.856237][   T73]      netlink_rcv_skb+0x130/0x360
[  323.856237][   T73]      netlink_unicast+0x449/0x710
[  323.856237][   T73]      netlink_sendmsg+0x723/0xbe0
[  323.856237][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  323.856237][   T73]      ___sys_sendmsg+0xee/0x170
[  323.856237][   T73]      __sys_sendmsg+0xcd/0x170
[  323.856237][   T73]      do_syscall_64+0xc6/0x1e0
[  323.856237][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  323.856237][   T73] 
[  323.858475][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  323.858475][   T73]      netdev_get_by_index+0x5e/0x80
[  323.858475][   T73]      fib6_nh_init+0x3d8/0x1580
[  323.858475][   T73]      ip6_route_info_create+0xf18/0x17d0
[  323.858475][   T73]      ip6_route_add+0x1c/0x140
[  323.858475][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  323.858475][   T73]      addrconf_add_dev+0xe2/0x170
[  323.858475][   T73]      inet6_addr_add+0x12f/0xa40
[  323.858475][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  323.858475][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  323.858475][   T73]      netlink_rcv_skb+0x130/0x360
[  323.858475][   T73]      netlink_unicast+0x449/0x710
[  323.858475][   T73]      netlink_sendmsg+0x723/0xbe0
[  323.858475][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  323.858475][   T73]      ___sys_sendmsg+0xee/0x170
[  323.858475][   T73]      __sys_sendmsg+0xcd/0x170
[  323.858475][   T73]      do_syscall_64+0xc6/0x1e0
[  323.858475][   T73] 
[  323.861023][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  323.861023][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  323.861023][   T73]      ipv6_find_idev+0x102/0x170
[  323.861023][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  323.861023][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  323.861023][   T73]      netlink_rcv_skb+0x130/0x360
[  323.861023][   T73]      netlink_unicast+0x449/0x710
[  323.861023][   T73]      netlink_sendmsg+0x723/0xbe0
[  323.861023][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  323.861023][   T73]      ___sys_sendmsg+0xee/0x170
[  323.861023][   T73]      __sys_sendmsg+0xcd/0x170
[  323.861023][   T73]      do_syscall_64+0xc6/0x1e0
[  323.861023][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  323.861023][   T73] 
[  323.862609][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  323.862609][   T73]      neigh_parms_alloc+0x1e5/0x510
[  323.862609][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  323.862609][   T73]      ipv6_find_idev+0x102/0x170
[  323.862609][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  323.862609][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  323.862609][   T73]      netlink_rcv_skb+0x130/0x360
[  323.862609][   T73]      netlink_unicast+0x449/0x710
[  323.862609][   T73]      netlink_sendmsg+0x723/0xbe0
[  323.862609][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  323.862609][   T73]      ___sys_sendmsg+0xee/0x170
[  323.862609][   T73]      __sys_sendmsg+0xcd/0x170
[  323.862609][   T73]      do_syscall_64+0xc6/0x1e0
[  323.862609][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  323.862609][   T73] 
[  323.864533][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  323.864842][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  323.864842][   T73]      netdev_get_by_index+0x5e/0x80
[  323.864842][   T73]      fib6_nh_init+0x3d8/0x1580
[  323.864842][   T73]      ip6_route_info_create+0xf18/0x17d0
[  323.864842][   T73]      addrconf_f6i_alloc+0x265/0x560
[  323.864842][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  323.864842][   T73]      addrconf_join_anycast+0x1c0/0x220
[  323.864842][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  323.864842][   T73]      addrconf_dad_completed+0x12b/0xe20
[  323.864842][   T73]      addrconf_dad_begin+0x310/0x670
[  323.864842][   T73]      addrconf_dad_work+0x10b/0xab0
[  323.864842][   T73]      process_one_work+0x84d/0x18a0
[  323.864842][   T73]      worker_thread+0x587/0xd30
[  323.864842][   T73]      kthread+0x28a/0x350
[  323.864842][   T73]      ret_from_fork+0x31/0x70
[  323.864842][   T73]      ret_from_fork_asm+0x1a/0x30
[  323.864842][   T73] 
[  323.866889][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  323.866889][   T73]      netdev_get_by_index+0x5e/0x80
[  323.866889][   T73]      fib6_nh_init+0x3d8/0x1580
[  323.866889][   T73]      ip6_route_info_create+0xf18/0x17d0
[  323.866889][   T73]      ip6_route_add+0x1c/0x140
[  323.866889][   T73]      addrconf_prefix_route+0x2a6/0x430
[  323.866889][   T73]      inet6_addr_add+0x4f8/0xa40
[  323.866889][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  323.866889][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  323.866889][   T73]      netlink_rcv_skb+0x130/0x360
[  323.866889][   T73]      netlink_unicast+0x449/0x710
[  323.866889][   T73]      netlink_sendmsg+0x723/0xbe0
[  323.866889][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  323.866889][   T73]      ___sys_sendmsg+0xee/0x170
[  323.866889][   T73]      __sys_sendmsg+0xcd/0x170
[  323.866889][   T73]      do_syscall_64+0xc6/0x1e0
[  323.866889][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  323.866889][   T73] 
[  323.868947][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  323.868947][   T73]      netdev_get_by_index+0x5e/0x80
[  323.868947][   T73]      fib6_nh_init+0x3d8/0x1580
[  323.868947][   T73]      ip6_route_info_create+0xf18/0x17d0
[  323.868947][   T73]      addrconf_f6i_alloc+0x315/0x560
[  323.868947][   T73]      ipv6_add_addr+0x411/0x2000
[  323.868947][   T73]      inet6_addr_add+0x30e/0xa40
[  323.868947][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  323.868947][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  323.868947][   T73]      netlink_rcv_skb+0x130/0x360
[  323.868947][   T73]      netlink_unicast+0x449/0x710
[  323.868947][   T73]      netlink_sendmsg+0x723/0xbe0
[  323.868947][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  323.868947][   T73]      ___sys_sendmsg+0xee/0x170
[  323.868947][   T73]      __sys_sendmsg+0xcd/0x170
[  323.868947][   T73]      do_syscall_64+0xc6/0x1e0
[  323.868947][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  323.868947][   T73] 
[  323.870994][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  323.870994][   T73]      netdev_get_by_index+0x5e/0x80
[  323.870994][   T73]      fib6_nh_init+0x3d8/0x1580
[  323.870994][   T73]      ip6_route_info_create+0xf18/0x17d0
[  323.870994][   T73]      ip6_route_add+0x1c/0x140
[  323.870994][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  323.870994][   T73]      addrconf_add_dev+0xe2/0x170
[  323.870994][   T73]      inet6_addr_add+0x12f/0xa40
[  323.870994][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  323.870994][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  323.870994][   T73]      netlink_rcv_skb+0x130/0x360
[  323.870994][   T73]      netlink_unicast+0x449/0x710
[  323.870994][   T73]      netlink_sendmsg+0x723/0xbe0
[  323.870994][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  323.870994][   T73]      ___sys_sendmsg+0xee/0x170
[  323.870994][   T73]      __sys_sendmsg+0xcd/0x170
[  323.870994][   T73]      do_syscall_64+0xc6/0x1e0
[  323.870994][   T73] 
[  323.873017][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  323.873017][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  323.873017][   T73]      ipv6_find_idev+0x102/0x170
[  323.873017][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  323.873017][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  323.873017][   T73]      netlink_rcv_skb+0x130/0x360
[  323.873017][   T73]      netlink_unicast+0x449/0x710
[  323.873017][   T73]      netlink_sendmsg+0x723/0xbe0
[  323.873017][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  323.873017][   T73]      ___sys_sendmsg+0xee/0x170
[  323.873017][   T73]      __sys_sendmsg+0xcd/0x170
[  323.873017][   T73]      do_syscall_64+0xc6/0x1e0
[  323.873017][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  323.873017][   T73] 
[  323.874652][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  323.874652][   T73]      neigh_parms_alloc+0x1e5/0x510
[  323.874652][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  323.874652][   T73]      ipv6_find_idev+0x102/0x170
[  323.874652][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  323.874652][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  323.874652][   T73]      netlink_rcv_skb+0x130/0x360
[  323.874652][   T73]      netlink_unicast+0x449/0x710
[  323.874652][   T73]      netlink_sendmsg+0x723/0xbe0
[  323.874652][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  323.874652][   T73]      ___sys_sendmsg+0xee/0x170
[  323.874652][   T73]      __sys_sendmsg+0xcd/0x170
[  323.874652][   T73]      do_syscall_64+0xc6/0x1e0
[  323.874652][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  323.874652][   T73] 
[  323.876460][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  323.876747][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  323.876747][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  323.876747][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  323.876747][   T73]      fib6_nh_init+0xa22/0x1580
[  323.876747][   T73]      ip6_route_info_create+0xf18/0x17d0
[  323.876747][   T73]      ip6_route_add+0x1c/0x140
[  323.876747][   T73]      inet6_rtm_newroute+0x104/0x110
[  323.876747][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  323.876747][   T73]      netlink_rcv_skb+0x130/0x360
[  323.876747][   T73]      netlink_unicast+0x449/0x710
[  323.876747][   T73]      netlink_sendmsg+0x723/0xbe0
[  323.876747][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  323.876747][   T73]      ___sys_sendmsg+0xee/0x170
[  323.876747][   T73]      __sys_sendmsg+0xcd/0x170
[  323.876747][   T73]      do_syscall_64+0xc6/0x1e0
[  323.876747][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  323.876747][   T73] 
[  323.878866][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  323.878866][   T73]      dst_init+0x84/0x4a0
[  323.878866][   T73]      dst_alloc+0x97/0x150
[  323.878866][   T73]      ip6_dst_alloc+0x23/0x90
[  323.878866][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  323.878866][   T73]      ip6_pol_route+0x56f/0x840
[  323.878866][   T73]      fib6_rule_lookup+0x456/0x630
[  323.878866][   T73]      ip6_route_input+0x59c/0xa50
[  323.878866][   T73]      ipv6_rcv+0x397/0x810
[  323.878866][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  323.878866][   T73]      process_backlog+0x101/0x620
[  323.878866][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  323.878866][   T73]      net_rx_action+0x495/0xbe0
[  323.878866][   T73]      __do_softirq+0x1b5/0x7f6
[  323.878866][   T73] 
[  323.880752][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  323.880752][   T73]      netdev_get_by_index+0x5e/0x80
[  323.880752][   T73]      fib6_nh_init+0x3d8/0x1580
[  323.880752][   T73]      ip6_route_info_create+0xf18/0x17d0
[  323.880752][   T73]      ip6_route_add+0x1c/0x140
[  323.880752][   T73]      addrconf_prefix_route+0x2a6/0x430
[  323.880752][   T73]      inet6_addr_add+0x4f8/0xa40
[  323.880752][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  323.880752][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  323.880752][   T73]      netlink_rcv_skb+0x130/0x360
[  323.880752][   T73]      netlink_unicast+0x449/0x710
[  323.880752][   T73]      netlink_sendmsg+0x723/0xbe0
[  323.880752][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  323.880752][   T73]      ___sys_sendmsg+0xee/0x170
[  323.880752][   T73]      __sys_sendmsg+0xcd/0x170
[  323.880752][   T73]      do_syscall_64+0xc6/0x1e0
[  323.880752][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  323.880752][   T73] 
[  323.883027][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  323.883027][   T73]      netdev_get_by_index+0x5e/0x80
[  323.883027][   T73]      fib6_nh_init+0x3d8/0x1580
[  323.883027][   T73]      ip6_route_info_create+0xf18/0x17d0
[  323.883027][   T73]      addrconf_f6i_alloc+0x315/0x560
[  323.883027][   T73]      ipv6_add_addr+0x411/0x2000
[  323.883027][   T73]      inet6_addr_add+0x30e/0xa40
[  323.883027][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  323.883027][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  323.883027][   T73]      netlink_rcv_skb+0x130/0x360
[  323.883027][   T73]      netlink_unicast+0x449/0x710
[  323.883027][   T73]      netlink_sendmsg+0x723/0xbe0
[  323.883027][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  323.883027][   T73]      ___sys_sendmsg+0xee/0x170
[  323.883027][   T73]      __sys_sendmsg+0xcd/0x170
[  323.883027][   T73]      do_syscall_64+0xc6/0x1e0
[  323.883027][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  323.883027][   T73] 
[  323.885486][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  323.885486][   T73]      netdev_get_by_index+0x5e/0x80
[  323.885486][   T73]      fib6_nh_init+0x3d8/0x1580
[  323.885486][   T73]      ip6_route_info_create+0xf18/0x17d0
[  323.885486][   T73]      ip6_route_add+0x1c/0x140
[  323.885486][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  323.885486][   T73]      addrconf_add_dev+0xe2/0x170
[  323.885486][   T73]      inet6_addr_add+0x12f/0xa40
[  323.885486][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  323.885486][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  323.885486][   T73]      netlink_rcv_skb+0x130/0x360
[  323.885486][   T73]      netlink_unicast+0x449/0x710
[  323.885486][   T73]      netlink_sendmsg+0x723/0xbe0
[  323.885486][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  323.885486][   T73]      ___sys_sendmsg+0xee/0x170
[  323.885486][   T73]      __sys_sendmsg+0xcd/0x170
[  323.885486][   T73]      do_syscall_64+0xc6/0x1e0
[  323.885486][   T73] 
[  323.887720][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  323.887720][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  323.887720][   T73]      ipv6_find_idev+0x102/0x170
[  323.887720][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  323.887720][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  323.887720][   T73]      netlink_rcv_skb+0x130/0x360
[  323.887720][   T73]      netlink_unicast+0x449/0x710
[  323.887720][   T73]      netlink_sendmsg+0x723/0xbe0
[  323.887720][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  323.887720][   T73]      ___sys_sendmsg+0xee/0x170
[  323.887720][   T73]      __sys_sendmsg+0xcd/0x170
[  323.887720][   T73]      do_syscall_64+0xc6/0x1e0
[  323.887720][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  323.887720][   T73] 
[  323.889517][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  323.889517][   T73]      neigh_parms_alloc+0x1e5/0x510
[  323.889517][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  323.889517][   T73]      ipv6_find_idev+0x102/0x170
[  323.889517][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  323.889517][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  323.889517][   T73]      netlink_rcv_skb+0x130/0x360
[  323.889517][   T73]      netlink_unicast+0x449/0x710
[  323.889517][   T73]      netlink_sendmsg+0x723/0xbe0
[  323.889517][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  323.889517][   T73]      ___sys_sendmsg+0xee/0x170
[  323.889517][   T73]      __sys_sendmsg+0xcd/0x170
[  323.889517][   T73]      do_syscall_64+0xc6/0x1e0
[  323.889517][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  323.889517][   T73] 
[  323.891425][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  323.892171][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  323.892171][   T73]      netdev_get_by_index+0x5e/0x80
[  323.892171][   T73]      fib6_nh_init+0x3d8/0x1580
[  323.892171][   T73]      ip6_route_info_create+0xf18/0x17d0
[  323.892171][   T73]      addrconf_f6i_alloc+0x265/0x560
[  323.892171][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  323.892171][   T73]      addrconf_join_anycast+0x1c0/0x220
[  323.892171][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  323.892171][   T73]      addrconf_dad_completed+0x12b/0xe20
[  323.892171][   T73]      addrconf_dad_begin+0x310/0x670
[  323.892171][   T73]      addrconf_dad_work+0x10b/0xab0
[  323.892171][   T73]      process_one_work+0x84d/0x18a0
[  323.892171][   T73]      worker_thread+0x587/0xd30
[  323.892171][   T73]      kthread+0x28a/0x350
[  323.892171][   T73]      ret_from_fork+0x31/0x70
[  323.892171][   T73]      ret_from_fork_asm+0x1a/0x30
[  323.892171][   T73] 
[  323.894114][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  323.894114][   T73]      netdev_get_by_index+0x5e/0x80
[  323.894114][   T73]      fib6_nh_init+0x3d8/0x1580
[  323.894114][   T73]      ip6_route_info_create+0xf18/0x17d0
[  323.894114][   T73]      ip6_route_add+0x1c/0x140
[  323.894114][   T73]      addrconf_prefix_route+0x2a6/0x430
[  323.894114][   T73]      inet6_addr_add+0x4f8/0xa40
[  323.894114][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  323.894114][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  323.894114][   T73]      netlink_rcv_skb+0x130/0x360
[  323.894114][   T73]      netlink_unicast+0x449/0x710
[  323.894114][   T73]      netlink_sendmsg+0x723/0xbe0
[  323.894114][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  323.894114][   T73]      ___sys_sendmsg+0xee/0x170
[  323.894114][   T73]      __sys_sendmsg+0xcd/0x170
[  323.894114][   T73]      do_syscall_64+0xc6/0x1e0
[  323.894114][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  323.894114][   T73] 
[  323.896724][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  323.896724][   T73]      netdev_get_by_index+0x5e/0x80
[  323.896724][   T73]      fib6_nh_init+0x3d8/0x1580
[  323.896724][   T73]      ip6_route_info_create+0xf18/0x17d0
[  323.896724][   T73]      addrconf_f6i_alloc+0x315/0x560
[  323.896724][   T73]      ipv6_add_addr+0x411/0x2000
[  323.896724][   T73]      inet6_addr_add+0x30e/0xa40
[  323.896724][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  323.896724][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  323.896724][   T73]      netlink_rcv_skb+0x130/0x360
[  323.896724][   T73]      netlink_unicast+0x449/0x710
[  323.896724][   T73]      netlink_sendmsg+0x723/0xbe0
[  323.896724][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  323.896724][   T73]      ___sys_sendmsg+0xee/0x170
[  323.896724][   T73]      __sys_sendmsg+0xcd/0x170
[  323.896724][   T73]      do_syscall_64+0xc6/0x1e0
[  323.896724][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  323.896724][   T73] 
[  323.899060][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  323.899060][   T73]      netdev_get_by_index+0x5e/0x80
[  323.899060][   T73]      fib6_nh_init+0x3d8/0x1580
[  323.899060][   T73]      ip6_route_info_create+0xf18/0x17d0
[  323.899060][   T73]      ip6_route_add+0x1c/0x140
[  323.899060][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  323.899060][   T73]      addrconf_add_dev+0xe2/0x170
[  323.899060][   T73]      inet6_addr_add+0x12f/0xa40
[  323.899060][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  323.899060][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  323.899060][   T73]      netlink_rcv_skb+0x130/0x360
[  323.899060][   T73]      netlink_unicast+0x449/0x710
[  323.899060][   T73]      netlink_sendmsg+0x723/0xbe0
[  323.899060][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  323.899060][   T73]      ___sys_sendmsg+0xee/0x170
[  323.899060][   T73]      __sys_sendmsg+0xcd/0x170
[  323.899060][   T73]      do_syscall_64+0xc6/0x1e0
[  323.899060][   T73] 
[  323.901271][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  323.901271][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  323.901271][   T73]      ipv6_find_idev+0x102/0x170
[  323.901271][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  323.901271][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  323.901271][   T73]      netlink_rcv_skb+0x130/0x360
[  323.901271][   T73]      netlink_unicast+0x449/0x710
[  323.901271][   T73]      netlink_sendmsg+0x723/0xbe0
[  323.901271][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  323.901271][   T73]      ___sys_sendmsg+0xee/0x170
[  323.901271][   T73]      __sys_sendmsg+0xcd/0x170
[  323.901271][   T73]      do_syscall_64+0xc6/0x1e0
[  323.901271][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  323.901271][   T73] 
[  323.903100][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  323.903100][   T73]      neigh_parms_alloc+0x1e5/0x510
[  323.903100][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  323.903100][   T73]      ipv6_find_idev+0x102/0x170
[  323.903100][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  323.903100][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  323.903100][   T73]      netlink_rcv_skb+0x130/0x360
[  323.903100][   T73]      netlink_unicast+0x449/0x710
[  323.903100][   T73]      netlink_sendmsg+0x723/0xbe0
[  323.903100][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  323.903100][   T73]      ___sys_sendmsg+0xee/0x170
[  323.903100][   T73]      __sys_sendmsg+0xcd/0x170
[  323.903100][   T73]      do_syscall_64+0xc6/0x1e0
[  323.903100][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  323.903100][   T73] 
[  333.919771][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  333.920348][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  333.920348][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  333.920348][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  333.920348][   T73]      fib6_nh_init+0xa22/0x1580
[  333.920348][   T73]      ip6_route_info_create+0xf18/0x17d0
[  333.920348][   T73]      ip6_route_add+0x1c/0x140
[  333.920348][   T73]      inet6_rtm_newroute+0x104/0x110
[  333.920348][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  333.920348][   T73]      netlink_rcv_skb+0x130/0x360
[  333.920348][   T73]      netlink_unicast+0x449/0x710
[  333.920348][   T73]      netlink_sendmsg+0x723/0xbe0
[  333.920348][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  333.920348][   T73]      ___sys_sendmsg+0xee/0x170
[  333.920348][   T73]      __sys_sendmsg+0xcd/0x170
[  333.920348][   T73]      do_syscall_64+0xc6/0x1e0
[  333.920348][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  333.920348][   T73] 
[  333.923292][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  333.923292][   T73]      dst_init+0x84/0x4a0
[  333.923292][   T73]      dst_alloc+0x97/0x150
[  333.923292][   T73]      ip6_dst_alloc+0x23/0x90
[  333.923292][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  333.923292][   T73]      ip6_pol_route+0x56f/0x840
[  333.923292][   T73]      fib6_rule_lookup+0x456/0x630
[  333.923292][   T73]      ip6_route_input+0x59c/0xa50
[  333.923292][   T73]      ipv6_rcv+0x397/0x810
[  333.923292][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  333.923292][   T73]      process_backlog+0x101/0x620
[  333.923292][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  333.923292][   T73]      net_rx_action+0x495/0xbe0
[  333.923292][   T73]      __do_softirq+0x1b5/0x7f6
[  333.923292][   T73] 
[  333.925864][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  333.925864][   T73]      netdev_get_by_index+0x5e/0x80
[  333.925864][   T73]      fib6_nh_init+0x3d8/0x1580
[  333.925864][   T73]      ip6_route_info_create+0xf18/0x17d0
[  333.925864][   T73]      ip6_route_add+0x1c/0x140
[  333.925864][   T73]      addrconf_prefix_route+0x2a6/0x430
[  333.925864][   T73]      inet6_addr_add+0x4f8/0xa40
[  333.925864][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  333.925864][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  333.925864][   T73]      netlink_rcv_skb+0x130/0x360
[  333.925864][   T73]      netlink_unicast+0x449/0x710
[  333.925864][   T73]      netlink_sendmsg+0x723/0xbe0
[  333.925864][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  333.925864][   T73]      ___sys_sendmsg+0xee/0x170
[  333.925864][   T73]      __sys_sendmsg+0xcd/0x170
[  333.925864][   T73]      do_syscall_64+0xc6/0x1e0
[  333.925864][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  333.925864][   T73] 
[  333.929024][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  333.929024][   T73]      netdev_get_by_index+0x5e/0x80
[  333.929024][   T73]      fib6_nh_init+0x3d8/0x1580
[  333.929024][   T73]      ip6_route_info_create+0xf18/0x17d0
[  333.929024][   T73]      addrconf_f6i_alloc+0x315/0x560
[  333.929024][   T73]      ipv6_add_addr+0x411/0x2000
[  333.929024][   T73]      inet6_addr_add+0x30e/0xa40
[  333.929024][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  333.929024][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  333.929024][   T73]      netlink_rcv_skb+0x130/0x360
[  333.929024][   T73]      netlink_unicast+0x449/0x710
[  333.929024][   T73]      netlink_sendmsg+0x723/0xbe0
[  333.929024][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  333.929024][   T73]      ___sys_sendmsg+0xee/0x170
[  333.929024][   T73]      __sys_sendmsg+0xcd/0x170
[  333.929024][   T73]      do_syscall_64+0xc6/0x1e0
[  333.929024][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  333.929024][   T73] 
[  333.932122][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  333.932122][   T73]      netdev_get_by_index+0x5e/0x80
[  333.932122][   T73]      fib6_nh_init+0x3d8/0x1580
[  333.932122][   T73]      ip6_route_info_create+0xf18/0x17d0
[  333.932122][   T73]      ip6_route_add+0x1c/0x140
[  333.932122][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  333.932122][   T73]      addrconf_add_dev+0xe2/0x170
[  333.932122][   T73]      inet6_addr_add+0x12f/0xa40
[  333.932122][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  333.932122][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  333.932122][   T73]      netlink_rcv_skb+0x130/0x360
[  333.932122][   T73]      netlink_unicast+0x449/0x710
[  333.932122][   T73]      netlink_sendmsg+0x723/0xbe0
[  333.932122][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  333.932122][   T73]      ___sys_sendmsg+0xee/0x170
[  333.932122][   T73]      __sys_sendmsg+0xcd/0x170
[  333.932122][   T73]      do_syscall_64+0xc6/0x1e0
[  333.932122][   T73] 
[  333.935155][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  333.935155][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  333.935155][   T73]      ipv6_find_idev+0x102/0x170
[  333.935155][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  333.935155][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  333.935155][   T73]      netlink_rcv_skb+0x130/0x360
[  333.935155][   T73]      netlink_unicast+0x449/0x710
[  333.935155][   T73]      netlink_sendmsg+0x723/0xbe0
[  333.935155][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  333.935155][   T73]      ___sys_sendmsg+0xee/0x170
[  333.935155][   T73]      __sys_sendmsg+0xcd/0x170
[  333.935155][   T73]      do_syscall_64+0xc6/0x1e0
[  333.935155][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  333.935155][   T73] 
[  333.937517][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  333.937517][   T73]      neigh_parms_alloc+0x1e5/0x510
[  333.937517][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  333.937517][   T73]      ipv6_find_idev+0x102/0x170
[  333.937517][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  333.937517][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  333.937517][   T73]      netlink_rcv_skb+0x130/0x360
[  333.937517][   T73]      netlink_unicast+0x449/0x710
[  333.937517][   T73]      netlink_sendmsg+0x723/0xbe0
[  333.937517][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  333.937517][   T73]      ___sys_sendmsg+0xee/0x170
[  333.937517][   T73]      __sys_sendmsg+0xcd/0x170
[  333.937517][   T73]      do_syscall_64+0xc6/0x1e0
[  333.937517][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  333.937517][   T73] 
[  333.940152][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  333.940577][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  333.940577][   T73]      netdev_get_by_index+0x5e/0x80
[  333.940577][   T73]      fib6_nh_init+0x3d8/0x1580
[  333.940577][   T73]      ip6_route_info_create+0xf18/0x17d0
[  333.940577][   T73]      addrconf_f6i_alloc+0x265/0x560
[  333.940577][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  333.940577][   T73]      addrconf_join_anycast+0x1c0/0x220
[  333.940577][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  333.940577][   T73]      addrconf_dad_completed+0x12b/0xe20
[  333.940577][   T73]      addrconf_dad_begin+0x310/0x670
[  333.940577][   T73]      addrconf_dad_work+0x10b/0xab0
[  333.940577][   T73]      process_one_work+0x84d/0x18a0
[  333.940577][   T73]      worker_thread+0x587/0xd30
[  333.940577][   T73]      kthread+0x28a/0x350
[  333.940577][   T73]      ret_from_fork+0x31/0x70
[  333.940577][   T73]      ret_from_fork_asm+0x1a/0x30
[  333.940577][   T73] 
[  333.943465][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  333.943465][   T73]      netdev_get_by_index+0x5e/0x80
[  333.943465][   T73]      fib6_nh_init+0x3d8/0x1580
[  333.943465][   T73]      ip6_route_info_create+0xf18/0x17d0
[  333.943465][   T73]      ip6_route_add+0x1c/0x140
[  333.943465][   T73]      addrconf_prefix_route+0x2a6/0x430
[  333.943465][   T73]      inet6_addr_add+0x4f8/0xa40
[  333.943465][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  333.943465][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  333.943465][   T73]      netlink_rcv_skb+0x130/0x360
[  333.943465][   T73]      netlink_unicast+0x449/0x710
[  333.943465][   T73]      netlink_sendmsg+0x723/0xbe0
[  333.943465][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  333.943465][   T73]      ___sys_sendmsg+0xee/0x170
[  333.943465][   T73]      __sys_sendmsg+0xcd/0x170
[  333.943465][   T73]      do_syscall_64+0xc6/0x1e0
[  333.943465][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  333.943465][   T73] 
[  333.946539][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  333.946539][   T73]      netdev_get_by_index+0x5e/0x80
[  333.946539][   T73]      fib6_nh_init+0x3d8/0x1580
[  333.946539][   T73]      ip6_route_info_create+0xf18/0x17d0
[  333.946539][   T73]      addrconf_f6i_alloc+0x315/0x560
[  333.946539][   T73]      ipv6_add_addr+0x411/0x2000
[  333.946539][   T73]      inet6_addr_add+0x30e/0xa40
[  333.946539][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  333.946539][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  333.946539][   T73]      netlink_rcv_skb+0x130/0x360
[  333.946539][   T73]      netlink_unicast+0x449/0x710
[  333.946539][   T73]      netlink_sendmsg+0x723/0xbe0
[  333.946539][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  333.946539][   T73]      ___sys_sendmsg+0xee/0x170
[  333.946539][   T73]      __sys_sendmsg+0xcd/0x170
[  333.946539][   T73]      do_syscall_64+0xc6/0x1e0
[  333.946539][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  333.946539][   T73] 
[  333.949665][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  333.949665][   T73]      netdev_get_by_index+0x5e/0x80
[  333.949665][   T73]      fib6_nh_init+0x3d8/0x1580
[  333.949665][   T73]      ip6_route_info_create+0xf18/0x17d0
[  333.949665][   T73]      ip6_route_add+0x1c/0x140
[  333.949665][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  333.949665][   T73]      addrconf_add_dev+0xe2/0x170
[  333.949665][   T73]      inet6_addr_add+0x12f/0xa40
[  333.949665][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  333.949665][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  333.949665][   T73]      netlink_rcv_skb+0x130/0x360
[  333.949665][   T73]      netlink_unicast+0x449/0x710
[  333.949665][   T73]      netlink_sendmsg+0x723/0xbe0
[  333.949665][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  333.949665][   T73]      ___sys_sendmsg+0xee/0x170
[  333.949665][   T73]      __sys_sendmsg+0xcd/0x170
[  333.949665][   T73]      do_syscall_64+0xc6/0x1e0
[  333.949665][   T73] 
[  333.952687][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  333.952687][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  333.952687][   T73]      ipv6_find_idev+0x102/0x170
[  333.952687][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  333.952687][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  333.952687][   T73]      netlink_rcv_skb+0x130/0x360
[  333.952687][   T73]      netlink_unicast+0x449/0x710
[  333.952687][   T73]      netlink_sendmsg+0x723/0xbe0
[  333.952687][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  333.952687][   T73]      ___sys_sendmsg+0xee/0x170
[  333.952687][   T73]      __sys_sendmsg+0xcd/0x170
[  333.952687][   T73]      do_syscall_64+0xc6/0x1e0
[  333.952687][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  333.952687][   T73] 
[  333.955074][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  333.955074][   T73]      neigh_parms_alloc+0x1e5/0x510
[  333.955074][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  333.955074][   T73]      ipv6_find_idev+0x102/0x170
[  333.955074][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  333.955074][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  333.955074][   T73]      netlink_rcv_skb+0x130/0x360
[  333.955074][   T73]      netlink_unicast+0x449/0x710
[  333.955074][   T73]      netlink_sendmsg+0x723/0xbe0
[  333.955074][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  333.955074][   T73]      ___sys_sendmsg+0xee/0x170
[  333.955074][   T73]      __sys_sendmsg+0xcd/0x170
[  333.955074][   T73]      do_syscall_64+0xc6/0x1e0
[  333.955074][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  333.955074][   T73] 
[  333.957688][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  333.958110][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  333.958110][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  333.958110][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  333.958110][   T73]      fib6_nh_init+0xa22/0x1580
[  333.958110][   T73]      ip6_route_info_create+0xf18/0x17d0
[  333.958110][   T73]      ip6_route_add+0x1c/0x140
[  333.958110][   T73]      inet6_rtm_newroute+0x104/0x110
[  333.958110][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  333.958110][   T73]      netlink_rcv_skb+0x130/0x360
[  333.958110][   T73]      netlink_unicast+0x449/0x710
[  333.958110][   T73]      netlink_sendmsg+0x723/0xbe0
[  333.958110][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  333.958110][   T73]      ___sys_sendmsg+0xee/0x170
[  333.958110][   T73]      __sys_sendmsg+0xcd/0x170
[  333.958110][   T73]      do_syscall_64+0xc6/0x1e0
[  333.958110][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  333.958110][   T73] 
[  333.961225][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  333.961225][   T73]      dst_init+0x84/0x4a0
[  333.961225][   T73]      dst_alloc+0x97/0x150
[  333.961225][   T73]      ip6_dst_alloc+0x23/0x90
[  333.961225][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  333.961225][   T73]      ip6_pol_route+0x56f/0x840
[  333.961225][   T73]      fib6_rule_lookup+0x456/0x630
[  333.961225][   T73]      ip6_route_input+0x59c/0xa50
[  333.961225][   T73]      ipv6_rcv+0x397/0x810
[  333.961225][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  333.961225][   T73]      process_backlog+0x101/0x620
[  333.961225][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  333.961225][   T73]      net_rx_action+0x495/0xbe0
[  333.961225][   T73]      __do_softirq+0x1b5/0x7f6
[  333.961225][   T73] 
[  333.964322][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  333.964322][   T73]      netdev_get_by_index+0x5e/0x80
[  333.964322][   T73]      fib6_nh_init+0x3d8/0x1580
[  333.964322][   T73]      ip6_route_info_create+0xf18/0x17d0
[  333.964322][   T73]      ip6_route_add+0x1c/0x140
[  333.964322][   T73]      addrconf_prefix_route+0x2a6/0x430
[  333.964322][   T73]      inet6_addr_add+0x4f8/0xa40
[  333.964322][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  333.964322][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  333.964322][   T73]      netlink_rcv_skb+0x130/0x360
[  333.964322][   T73]      netlink_unicast+0x449/0x710
[  333.964322][   T73]      netlink_sendmsg+0x723/0xbe0
[  333.964322][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  333.964322][   T73]      ___sys_sendmsg+0xee/0x170
[  333.964322][   T73]      __sys_sendmsg+0xcd/0x170
[  333.964322][   T73]      do_syscall_64+0xc6/0x1e0
[  333.964322][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  333.964322][   T73] 
[  333.967714][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  333.967714][   T73]      netdev_get_by_index+0x5e/0x80
[  333.967714][   T73]      fib6_nh_init+0x3d8/0x1580
[  333.967714][   T73]      ip6_route_info_create+0xf18/0x17d0
[  333.967714][   T73]      addrconf_f6i_alloc+0x315/0x560
[  333.967714][   T73]      ipv6_add_addr+0x411/0x2000
[  333.967714][   T73]      inet6_addr_add+0x30e/0xa40
[  333.967714][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  333.967714][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  333.967714][   T73]      netlink_rcv_skb+0x130/0x360
[  333.967714][   T73]      netlink_unicast+0x449/0x710
[  333.967714][   T73]      netlink_sendmsg+0x723/0xbe0
[  333.967714][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  333.967714][   T73]      ___sys_sendmsg+0xee/0x170
[  333.967714][   T73]      __sys_sendmsg+0xcd/0x170
[  333.967714][   T73]      do_syscall_64+0xc6/0x1e0
[  333.967714][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  333.967714][   T73] 
[  333.971188][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  333.971188][   T73]      netdev_get_by_index+0x5e/0x80
[  333.971188][   T73]      fib6_nh_init+0x3d8/0x1580
[  333.971188][   T73]      ip6_route_info_create+0xf18/0x17d0
[  333.971188][   T73]      ip6_route_add+0x1c/0x140
[  333.971188][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  333.971188][   T73]      addrconf_add_dev+0xe2/0x170
[  333.971188][   T73]      inet6_addr_add+0x12f/0xa40
[  333.971188][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  333.971188][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  333.971188][   T73]      netlink_rcv_skb+0x130/0x360
[  333.971188][   T73]      netlink_unicast+0x449/0x710
[  333.971188][   T73]      netlink_sendmsg+0x723/0xbe0
[  333.971188][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  333.971188][   T73]      ___sys_sendmsg+0xee/0x170
[  333.971188][   T73]      __sys_sendmsg+0xcd/0x170
[  333.971188][   T73]      do_syscall_64+0xc6/0x1e0
[  333.971188][   T73] 
[  333.974657][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  333.974657][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  333.974657][   T73]      ipv6_find_idev+0x102/0x170
[  333.974657][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  333.974657][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  333.974657][   T73]      netlink_rcv_skb+0x130/0x360
[  333.974657][   T73]      netlink_unicast+0x449/0x710
[  333.974657][   T73]      netlink_sendmsg+0x723/0xbe0
[  333.974657][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  333.974657][   T73]      ___sys_sendmsg+0xee/0x170
[  333.974657][   T73]      __sys_sendmsg+0xcd/0x170
[  333.974657][   T73]      do_syscall_64+0xc6/0x1e0
[  333.974657][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  333.974657][   T73] 
[  333.977580][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  333.977580][   T73]      neigh_parms_alloc+0x1e5/0x510
[  333.977580][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  333.977580][   T73]      ipv6_find_idev+0x102/0x170
[  333.977580][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  333.977580][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  333.977580][   T73]      netlink_rcv_skb+0x130/0x360
[  333.977580][   T73]      netlink_unicast+0x449/0x710
[  333.977580][   T73]      netlink_sendmsg+0x723/0xbe0
[  333.977580][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  333.977580][   T73]      ___sys_sendmsg+0xee/0x170
[  333.977580][   T73]      __sys_sendmsg+0xcd/0x170
[  333.977580][   T73]      do_syscall_64+0xc6/0x1e0
[  333.977580][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  333.977580][   T73] 
[  333.980613][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  333.981172][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  333.981172][   T73]      netdev_get_by_index+0x5e/0x80
[  333.981172][   T73]      fib6_nh_init+0x3d8/0x1580
[  333.981172][   T73]      ip6_route_info_create+0xf18/0x17d0
[  333.981172][   T73]      addrconf_f6i_alloc+0x265/0x560
[  333.981172][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  333.981172][   T73]      addrconf_join_anycast+0x1c0/0x220
[  333.981172][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  333.981172][   T73]      addrconf_dad_completed+0x12b/0xe20
[  333.981172][   T73]      addrconf_dad_begin+0x310/0x670
[  333.981172][   T73]      addrconf_dad_work+0x10b/0xab0
[  333.981172][   T73]      process_one_work+0x84d/0x18a0
[  333.981172][   T73]      worker_thread+0x587/0xd30
[  333.981172][   T73]      kthread+0x28a/0x350
[  333.981172][   T73]      ret_from_fork+0x31/0x70
[  333.981172][   T73]      ret_from_fork_asm+0x1a/0x30
[  333.981172][   T73] 
[  333.984542][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  333.984542][   T73]      netdev_get_by_index+0x5e/0x80
[  333.984542][   T73]      fib6_nh_init+0x3d8/0x1580
[  333.984542][   T73]      ip6_route_info_create+0xf18/0x17d0
[  333.984542][   T73]      ip6_route_add+0x1c/0x140
[  333.984542][   T73]      addrconf_prefix_route+0x2a6/0x430
[  333.984542][   T73]      inet6_addr_add+0x4f8/0xa40
[  333.984542][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  333.984542][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  333.984542][   T73]      netlink_rcv_skb+0x130/0x360
[  333.984542][   T73]      netlink_unicast+0x449/0x710
[  333.984542][   T73]      netlink_sendmsg+0x723/0xbe0
[  333.984542][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  333.984542][   T73]      ___sys_sendmsg+0xee/0x170
[  333.984542][   T73]      __sys_sendmsg+0xcd/0x170
[  333.984542][   T73]      do_syscall_64+0xc6/0x1e0
[  333.984542][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  333.984542][   T73] 
[  333.988125][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  333.988125][   T73]      netdev_get_by_index+0x5e/0x80
[  333.988125][   T73]      fib6_nh_init+0x3d8/0x1580
[  333.988125][   T73]      ip6_route_info_create+0xf18/0x17d0
[  333.988125][   T73]      addrconf_f6i_alloc+0x315/0x560
[  333.988125][   T73]      ipv6_add_addr+0x411/0x2000
[  333.988125][   T73]      inet6_addr_add+0x30e/0xa40
[  333.988125][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  333.988125][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  333.988125][   T73]      netlink_rcv_skb+0x130/0x360
[  333.988125][   T73]      netlink_unicast+0x449/0x710
[  333.988125][   T73]      netlink_sendmsg+0x723/0xbe0
[  333.988125][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  333.988125][   T73]      ___sys_sendmsg+0xee/0x170
[  333.988125][   T73]      __sys_sendmsg+0xcd/0x170
[  333.988125][   T73]      do_syscall_64+0xc6/0x1e0
[  333.988125][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  333.988125][   T73] 
[  333.991591][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  333.991591][   T73]      netdev_get_by_index+0x5e/0x80
[  333.991591][   T73]      fib6_nh_init+0x3d8/0x1580
[  333.991591][   T73]      ip6_route_info_create+0xf18/0x17d0
[  333.991591][   T73]      ip6_route_add+0x1c/0x140
[  333.991591][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  333.991591][   T73]      addrconf_add_dev+0xe2/0x170
[  333.991591][   T73]      inet6_addr_add+0x12f/0xa40
[  333.991591][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  333.991591][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  333.991591][   T73]      netlink_rcv_skb+0x130/0x360
[  333.991591][   T73]      netlink_unicast+0x449/0x710
[  333.991591][   T73]      netlink_sendmsg+0x723/0xbe0
[  333.991591][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  333.991591][   T73]      ___sys_sendmsg+0xee/0x170
[  333.991591][   T73]      __sys_sendmsg+0xcd/0x170
[  333.991591][   T73]      do_syscall_64+0xc6/0x1e0
[  333.991591][   T73] 
[  333.996068][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  333.996068][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  333.996068][   T73]      ipv6_find_idev+0x102/0x170
[  333.996068][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  333.996068][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  333.996068][   T73]      netlink_rcv_skb+0x130/0x360
[  333.996068][   T73]      netlink_unicast+0x449/0x710
[  333.996068][   T73]      netlink_sendmsg+0x723/0xbe0
[  333.996068][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  333.996068][   T73]      ___sys_sendmsg+0xee/0x170
[  333.996068][   T73]      __sys_sendmsg+0xcd/0x170
[  333.996068][   T73]      do_syscall_64+0xc6/0x1e0
[  333.996068][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  333.996068][   T73] 
[  333.998754][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  333.998754][   T73]      neigh_parms_alloc+0x1e5/0x510
[  333.998754][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  333.998754][   T73]      ipv6_find_idev+0x102/0x170
[  333.998754][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  333.998754][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  333.998754][   T73]      netlink_rcv_skb+0x130/0x360
[  333.998754][   T73]      netlink_unicast+0x449/0x710
[  333.998754][   T73]      netlink_sendmsg+0x723/0xbe0
[  333.998754][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  333.998754][   T73]      ___sys_sendmsg+0xee/0x170
[  333.998754][   T73]      __sys_sendmsg+0xcd/0x170
[  333.998754][   T73]      do_syscall_64+0xc6/0x1e0
[  333.998754][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  333.998754][   T73] 
[  344.151787][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  344.152421][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  344.152421][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  344.152421][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  344.152421][   T73]      fib6_nh_init+0xa22/0x1580
[  344.152421][   T73]      ip6_route_info_create+0xf18/0x17d0
[  344.152421][   T73]      ip6_route_add+0x1c/0x140
[  344.152421][   T73]      inet6_rtm_newroute+0x104/0x110
[  344.152421][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  344.152421][   T73]      netlink_rcv_skb+0x130/0x360
[  344.152421][   T73]      netlink_unicast+0x449/0x710
[  344.152421][   T73]      netlink_sendmsg+0x723/0xbe0
[  344.152421][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  344.152421][   T73]      ___sys_sendmsg+0xee/0x170
[  344.152421][   T73]      __sys_sendmsg+0xcd/0x170
[  344.152421][   T73]      do_syscall_64+0xc6/0x1e0
[  344.152421][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  344.152421][   T73] 
[  344.155046][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  344.155046][   T73]      dst_init+0x84/0x4a0
[  344.155046][   T73]      dst_alloc+0x97/0x150
[  344.155046][   T73]      ip6_dst_alloc+0x23/0x90
[  344.155046][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  344.155046][   T73]      ip6_pol_route+0x56f/0x840
[  344.155046][   T73]      fib6_rule_lookup+0x456/0x630
[  344.155046][   T73]      ip6_route_input+0x59c/0xa50
[  344.155046][   T73]      ipv6_rcv+0x397/0x810
[  344.155046][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  344.155046][   T73]      process_backlog+0x101/0x620
[  344.155046][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  344.155046][   T73]      net_rx_action+0x495/0xbe0
[  344.155046][   T73]      __do_softirq+0x1b5/0x7f6
[  344.155046][   T73] 
[  344.156937][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  344.156937][   T73]      netdev_get_by_index+0x5e/0x80
[  344.156937][   T73]      fib6_nh_init+0x3d8/0x1580
[  344.156937][   T73]      ip6_route_info_create+0xf18/0x17d0
[  344.156937][   T73]      ip6_route_add+0x1c/0x140
[  344.156937][   T73]      addrconf_prefix_route+0x2a6/0x430
[  344.156937][   T73]      inet6_addr_add+0x4f8/0xa40
[  344.156937][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  344.156937][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  344.156937][   T73]      netlink_rcv_skb+0x130/0x360
[  344.156937][   T73]      netlink_unicast+0x449/0x710
[  344.156937][   T73]      netlink_sendmsg+0x723/0xbe0
[  344.156937][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  344.156937][   T73]      ___sys_sendmsg+0xee/0x170
[  344.156937][   T73]      __sys_sendmsg+0xcd/0x170
[  344.156937][   T73]      do_syscall_64+0xc6/0x1e0
[  344.156937][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  344.156937][   T73] 
[  344.159205][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  344.159205][   T73]      netdev_get_by_index+0x5e/0x80
[  344.159205][   T73]      fib6_nh_init+0x3d8/0x1580
[  344.159205][   T73]      ip6_route_info_create+0xf18/0x17d0
[  344.159205][   T73]      addrconf_f6i_alloc+0x315/0x560
[  344.159205][   T73]      ipv6_add_addr+0x411/0x2000
[  344.159205][   T73]      inet6_addr_add+0x30e/0xa40
[  344.159205][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  344.159205][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  344.159205][   T73]      netlink_rcv_skb+0x130/0x360
[  344.159205][   T73]      netlink_unicast+0x449/0x710
[  344.159205][   T73]      netlink_sendmsg+0x723/0xbe0
[  344.159205][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  344.159205][   T73]      ___sys_sendmsg+0xee/0x170
[  344.159205][   T73]      __sys_sendmsg+0xcd/0x170
[  344.159205][   T73]      do_syscall_64+0xc6/0x1e0
[  344.159205][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  344.159205][   T73] 
[  344.161427][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  344.161427][   T73]      netdev_get_by_index+0x5e/0x80
[  344.161427][   T73]      fib6_nh_init+0x3d8/0x1580
[  344.161427][   T73]      ip6_route_info_create+0xf18/0x17d0
[  344.161427][   T73]      ip6_route_add+0x1c/0x140
[  344.161427][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  344.161427][   T73]      addrconf_add_dev+0xe2/0x170
[  344.161427][   T73]      inet6_addr_add+0x12f/0xa40
[  344.161427][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  344.161427][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  344.161427][   T73]      netlink_rcv_skb+0x130/0x360
[  344.161427][   T73]      netlink_unicast+0x449/0x710
[  344.161427][   T73]      netlink_sendmsg+0x723/0xbe0
[  344.161427][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  344.161427][   T73]      ___sys_sendmsg+0xee/0x170
[  344.161427][   T73]      __sys_sendmsg+0xcd/0x170
[  344.161427][   T73]      do_syscall_64+0xc6/0x1e0
[  344.161427][   T73] 
[  344.163649][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  344.163649][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  344.163649][   T73]      ipv6_find_idev+0x102/0x170
[  344.163649][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  344.163649][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  344.163649][   T73]      netlink_rcv_skb+0x130/0x360
[  344.163649][   T73]      netlink_unicast+0x449/0x710
[  344.163649][   T73]      netlink_sendmsg+0x723/0xbe0
[  344.163649][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  344.163649][   T73]      ___sys_sendmsg+0xee/0x170
[  344.163649][   T73]      __sys_sendmsg+0xcd/0x170
[  344.163649][   T73]      do_syscall_64+0xc6/0x1e0
[  344.163649][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  344.163649][   T73] 
[  344.165376][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  344.165376][   T73]      neigh_parms_alloc+0x1e5/0x510
[  344.165376][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  344.165376][   T73]      ipv6_find_idev+0x102/0x170
[  344.165376][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  344.165376][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  344.165376][   T73]      netlink_rcv_skb+0x130/0x360
[  344.165376][   T73]      netlink_unicast+0x449/0x710
[  344.165376][   T73]      netlink_sendmsg+0x723/0xbe0
[  344.165376][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  344.165376][   T73]      ___sys_sendmsg+0xee/0x170
[  344.165376][   T73]      __sys_sendmsg+0xcd/0x170
[  344.165376][   T73]      do_syscall_64+0xc6/0x1e0
[  344.165376][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  344.165376][   T73] 
[  344.167283][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  344.167604][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  344.167604][   T73]      netdev_get_by_index+0x5e/0x80
[  344.167604][   T73]      fib6_nh_init+0x3d8/0x1580
[  344.167604][   T73]      ip6_route_info_create+0xf18/0x17d0
[  344.167604][   T73]      addrconf_f6i_alloc+0x265/0x560
[  344.167604][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  344.167604][   T73]      addrconf_join_anycast+0x1c0/0x220
[  344.167604][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  344.167604][   T73]      addrconf_dad_completed+0x12b/0xe20
[  344.167604][   T73]      addrconf_dad_begin+0x310/0x670
[  344.167604][   T73]      addrconf_dad_work+0x10b/0xab0
[  344.167604][   T73]      process_one_work+0x84d/0x18a0
[  344.167604][   T73]      worker_thread+0x587/0xd30
[  344.167604][   T73]      kthread+0x28a/0x350
[  344.167604][   T73]      ret_from_fork+0x31/0x70
[  344.167604][   T73]      ret_from_fork_asm+0x1a/0x30
[  344.167604][   T73] 
[  344.169785][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  344.169785][   T73]      netdev_get_by_index+0x5e/0x80
[  344.169785][   T73]      fib6_nh_init+0x3d8/0x1580
[  344.169785][   T73]      ip6_route_info_create+0xf18/0x17d0
[  344.169785][   T73]      ip6_route_add+0x1c/0x140
[  344.169785][   T73]      addrconf_prefix_route+0x2a6/0x430
[  344.169785][   T73]      inet6_addr_add+0x4f8/0xa40
[  344.169785][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  344.169785][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  344.169785][   T73]      netlink_rcv_skb+0x130/0x360
[  344.169785][   T73]      netlink_unicast+0x449/0x710
[  344.169785][   T73]      netlink_sendmsg+0x723/0xbe0
[  344.169785][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  344.169785][   T73]      ___sys_sendmsg+0xee/0x170
[  344.169785][   T73]      __sys_sendmsg+0xcd/0x170
[  344.169785][   T73]      do_syscall_64+0xc6/0x1e0
[  344.169785][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  344.169785][   T73] 
[  344.172031][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  344.172031][   T73]      netdev_get_by_index+0x5e/0x80
[  344.172031][   T73]      fib6_nh_init+0x3d8/0x1580
[  344.172031][   T73]      ip6_route_info_create+0xf18/0x17d0
[  344.172031][   T73]      addrconf_f6i_alloc+0x315/0x560
[  344.172031][   T73]      ipv6_add_addr+0x411/0x2000
[  344.172031][   T73]      inet6_addr_add+0x30e/0xa40
[  344.172031][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  344.172031][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  344.172031][   T73]      netlink_rcv_skb+0x130/0x360
[  344.172031][   T73]      netlink_unicast+0x449/0x710
[  344.172031][   T73]      netlink_sendmsg+0x723/0xbe0
[  344.172031][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  344.172031][   T73]      ___sys_sendmsg+0xee/0x170
[  344.172031][   T73]      __sys_sendmsg+0xcd/0x170
[  344.172031][   T73]      do_syscall_64+0xc6/0x1e0
[  344.172031][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  344.172031][   T73] 
[  344.174308][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  344.174308][   T73]      netdev_get_by_index+0x5e/0x80
[  344.174308][   T73]      fib6_nh_init+0x3d8/0x1580
[  344.174308][   T73]      ip6_route_info_create+0xf18/0x17d0
[  344.174308][   T73]      ip6_route_add+0x1c/0x140
[  344.174308][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  344.174308][   T73]      addrconf_add_dev+0xe2/0x170
[  344.174308][   T73]      inet6_addr_add+0x12f/0xa40
[  344.174308][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  344.174308][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  344.174308][   T73]      netlink_rcv_skb+0x130/0x360
[  344.174308][   T73]      netlink_unicast+0x449/0x710
[  344.174308][   T73]      netlink_sendmsg+0x723/0xbe0
[  344.174308][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  344.174308][   T73]      ___sys_sendmsg+0xee/0x170
[  344.174308][   T73]      __sys_sendmsg+0xcd/0x170
[  344.174308][   T73]      do_syscall_64+0xc6/0x1e0
[  344.174308][   T73] 
[  344.176561][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  344.176561][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  344.176561][   T73]      ipv6_find_idev+0x102/0x170
[  344.176561][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  344.176561][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  344.176561][   T73]      netlink_rcv_skb+0x130/0x360
[  344.176561][   T73]      netlink_unicast+0x449/0x710
[  344.176561][   T73]      netlink_sendmsg+0x723/0xbe0
[  344.176561][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  344.176561][   T73]      ___sys_sendmsg+0xee/0x170
[  344.176561][   T73]      __sys_sendmsg+0xcd/0x170
[  344.176561][   T73]      do_syscall_64+0xc6/0x1e0
[  344.176561][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  344.176561][   T73] 
[  344.178301][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  344.178301][   T73]      neigh_parms_alloc+0x1e5/0x510
[  344.178301][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  344.178301][   T73]      ipv6_find_idev+0x102/0x170
[  344.178301][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  344.178301][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  344.178301][   T73]      netlink_rcv_skb+0x130/0x360
[  344.178301][   T73]      netlink_unicast+0x449/0x710
[  344.178301][   T73]      netlink_sendmsg+0x723/0xbe0
[  344.178301][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  344.178301][   T73]      ___sys_sendmsg+0xee/0x170
[  344.178301][   T73]      __sys_sendmsg+0xcd/0x170
[  344.178301][   T73]      do_syscall_64+0xc6/0x1e0
[  344.178301][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  344.178301][   T73] 
[  344.180225][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  344.180539][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  344.180539][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  344.180539][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  344.180539][   T73]      fib6_nh_init+0xa22/0x1580
[  344.180539][   T73]      ip6_route_info_create+0xf18/0x17d0
[  344.180539][   T73]      ip6_route_add+0x1c/0x140
[  344.180539][   T73]      inet6_rtm_newroute+0x104/0x110
[  344.180539][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  344.180539][   T73]      netlink_rcv_skb+0x130/0x360
[  344.180539][   T73]      netlink_unicast+0x449/0x710
[  344.180539][   T73]      netlink_sendmsg+0x723/0xbe0
[  344.180539][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  344.180539][   T73]      ___sys_sendmsg+0xee/0x170
[  344.180539][   T73]      __sys_sendmsg+0xcd/0x170
[  344.180539][   T73]      do_syscall_64+0xc6/0x1e0
[  344.180539][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  344.180539][   T73] 
[  344.182807][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  344.182807][   T73]      dst_init+0x84/0x4a0
[  344.182807][   T73]      dst_alloc+0x97/0x150
[  344.182807][   T73]      ip6_dst_alloc+0x23/0x90
[  344.182807][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  344.182807][   T73]      ip6_pol_route+0x56f/0x840
[  344.182807][   T73]      fib6_rule_lookup+0x456/0x630
[  344.182807][   T73]      ip6_route_input+0x59c/0xa50
[  344.182807][   T73]      ipv6_rcv+0x397/0x810
[  344.182807][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  344.182807][   T73]      process_backlog+0x101/0x620
[  344.182807][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  344.182807][   T73]      net_rx_action+0x495/0xbe0
[  344.182807][   T73]      __do_softirq+0x1b5/0x7f6
[  344.182807][   T73] 
[  344.184919][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  344.184919][   T73]      netdev_get_by_index+0x5e/0x80
[  344.184919][   T73]      fib6_nh_init+0x3d8/0x1580
[  344.184919][   T73]      ip6_route_info_create+0xf18/0x17d0
[  344.184919][   T73]      ip6_route_add+0x1c/0x140
[  344.184919][   T73]      addrconf_prefix_route+0x2a6/0x430
[  344.184919][   T73]      inet6_addr_add+0x4f8/0xa40
[  344.184919][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  344.184919][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  344.184919][   T73]      netlink_rcv_skb+0x130/0x360
[  344.184919][   T73]      netlink_unicast+0x449/0x710
[  344.184919][   T73]      netlink_sendmsg+0x723/0xbe0
[  344.184919][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  344.184919][   T73]      ___sys_sendmsg+0xee/0x170
[  344.184919][   T73]      __sys_sendmsg+0xcd/0x170
[  344.184919][   T73]      do_syscall_64+0xc6/0x1e0
[  344.184919][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  344.184919][   T73] 
[  344.187345][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  344.187345][   T73]      netdev_get_by_index+0x5e/0x80
[  344.187345][   T73]      fib6_nh_init+0x3d8/0x1580
[  344.187345][   T73]      ip6_route_info_create+0xf18/0x17d0
[  344.187345][   T73]      addrconf_f6i_alloc+0x315/0x560
[  344.187345][   T73]      ipv6_add_addr+0x411/0x2000
[  344.187345][   T73]      inet6_addr_add+0x30e/0xa40
[  344.187345][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  344.187345][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  344.187345][   T73]      netlink_rcv_skb+0x130/0x360
[  344.187345][   T73]      netlink_unicast+0x449/0x710
[  344.187345][   T73]      netlink_sendmsg+0x723/0xbe0
[  344.187345][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  344.187345][   T73]      ___sys_sendmsg+0xee/0x170
[  344.187345][   T73]      __sys_sendmsg+0xcd/0x170
[  344.187345][   T73]      do_syscall_64+0xc6/0x1e0
[  344.187345][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  344.187345][   T73] 
[  344.189867][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  344.189867][   T73]      netdev_get_by_index+0x5e/0x80
[  344.189867][   T73]      fib6_nh_init+0x3d8/0x1580
[  344.189867][   T73]      ip6_route_info_create+0xf18/0x17d0
[  344.189867][   T73]      ip6_route_add+0x1c/0x140
[  344.189867][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  344.189867][   T73]      addrconf_add_dev+0xe2/0x170
[  344.189867][   T73]      inet6_addr_add+0x12f/0xa40
[  344.189867][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  344.189867][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  344.189867][   T73]      netlink_rcv_skb+0x130/0x360
[  344.189867][   T73]      netlink_unicast+0x449/0x710
[  344.189867][   T73]      netlink_sendmsg+0x723/0xbe0
[  344.189867][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  344.189867][   T73]      ___sys_sendmsg+0xee/0x170
[  344.189867][   T73]      __sys_sendmsg+0xcd/0x170
[  344.189867][   T73]      do_syscall_64+0xc6/0x1e0
[  344.189867][   T73] 
[  344.192324][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  344.192324][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  344.192324][   T73]      ipv6_find_idev+0x102/0x170
[  344.192324][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  344.192324][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  344.192324][   T73]      netlink_rcv_skb+0x130/0x360
[  344.192324][   T73]      netlink_unicast+0x449/0x710
[  344.192324][   T73]      netlink_sendmsg+0x723/0xbe0
[  344.192324][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  344.192324][   T73]      ___sys_sendmsg+0xee/0x170
[  344.192324][   T73]      __sys_sendmsg+0xcd/0x170
[  344.192324][   T73]      do_syscall_64+0xc6/0x1e0
[  344.192324][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  344.192324][   T73] 
[  344.194289][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  344.194289][   T73]      neigh_parms_alloc+0x1e5/0x510
[  344.194289][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  344.194289][   T73]      ipv6_find_idev+0x102/0x170
[  344.194289][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  344.194289][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  344.194289][   T73]      netlink_rcv_skb+0x130/0x360
[  344.194289][   T73]      netlink_unicast+0x449/0x710
[  344.194289][   T73]      netlink_sendmsg+0x723/0xbe0
[  344.194289][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  344.194289][   T73]      ___sys_sendmsg+0xee/0x170
[  344.194289][   T73]      __sys_sendmsg+0xcd/0x170
[  344.194289][   T73]      do_syscall_64+0xc6/0x1e0
[  344.194289][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  344.194289][   T73] 
[  344.196435][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  344.197313][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  344.197313][   T73]      netdev_get_by_index+0x5e/0x80
[  344.197313][   T73]      fib6_nh_init+0x3d8/0x1580
[  344.197313][   T73]      ip6_route_info_create+0xf18/0x17d0
[  344.197313][   T73]      addrconf_f6i_alloc+0x265/0x560
[  344.197313][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  344.197313][   T73]      addrconf_join_anycast+0x1c0/0x220
[  344.197313][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  344.197313][   T73]      addrconf_dad_completed+0x12b/0xe20
[  344.197313][   T73]      addrconf_dad_begin+0x310/0x670
[  344.197313][   T73]      addrconf_dad_work+0x10b/0xab0
[  344.197313][   T73]      process_one_work+0x84d/0x18a0
[  344.197313][   T73]      worker_thread+0x587/0xd30
[  344.197313][   T73]      kthread+0x28a/0x350
[  344.197313][   T73]      ret_from_fork+0x31/0x70
[  344.197313][   T73]      ret_from_fork_asm+0x1a/0x30
[  344.197313][   T73] 
[  344.199390][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  344.199390][   T73]      netdev_get_by_index+0x5e/0x80
[  344.199390][   T73]      fib6_nh_init+0x3d8/0x1580
[  344.199390][   T73]      ip6_route_info_create+0xf18/0x17d0
[  344.199390][   T73]      ip6_route_add+0x1c/0x140
[  344.199390][   T73]      addrconf_prefix_route+0x2a6/0x430
[  344.199390][   T73]      inet6_addr_add+0x4f8/0xa40
[  344.199390][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  344.199390][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  344.199390][   T73]      netlink_rcv_skb+0x130/0x360
[  344.199390][   T73]      netlink_unicast+0x449/0x710
[  344.199390][   T73]      netlink_sendmsg+0x723/0xbe0
[  344.199390][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  344.199390][   T73]      ___sys_sendmsg+0xee/0x170
[  344.199390][   T73]      __sys_sendmsg+0xcd/0x170
[  344.199390][   T73]      do_syscall_64+0xc6/0x1e0
[  344.199390][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  344.199390][   T73] 
[  344.201514][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  344.201514][   T73]      netdev_get_by_index+0x5e/0x80
[  344.201514][   T73]      fib6_nh_init+0x3d8/0x1580
[  344.201514][   T73]      ip6_route_info_create+0xf18/0x17d0
[  344.201514][   T73]      addrconf_f6i_alloc+0x315/0x560
[  344.201514][   T73]      ipv6_add_addr+0x411/0x2000
[  344.201514][   T73]      inet6_addr_add+0x30e/0xa40
[  344.201514][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  344.201514][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  344.201514][   T73]      netlink_rcv_skb+0x130/0x360
[  344.201514][   T73]      netlink_unicast+0x449/0x710
[  344.201514][   T73]      netlink_sendmsg+0x723/0xbe0
[  344.201514][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  344.201514][   T73]      ___sys_sendmsg+0xee/0x170
[  344.201514][   T73]      __sys_sendmsg+0xcd/0x170
[  344.201514][   T73]      do_syscall_64+0xc6/0x1e0
[  344.201514][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  344.201514][   T73] 
[  344.203909][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  344.203909][   T73]      netdev_get_by_index+0x5e/0x80
[  344.203909][   T73]      fib6_nh_init+0x3d8/0x1580
[  344.203909][   T73]      ip6_route_info_create+0xf18/0x17d0
[  344.203909][   T73]      ip6_route_add+0x1c/0x140
[  344.203909][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  344.203909][   T73]      addrconf_add_dev+0xe2/0x170
[  344.203909][   T73]      inet6_addr_add+0x12f/0xa40
[  344.203909][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  344.203909][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  344.203909][   T73]      netlink_rcv_skb+0x130/0x360
[  344.203909][   T73]      netlink_unicast+0x449/0x710
[  344.203909][   T73]      netlink_sendmsg+0x723/0xbe0
[  344.203909][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  344.203909][   T73]      ___sys_sendmsg+0xee/0x170
[  344.203909][   T73]      __sys_sendmsg+0xcd/0x170
[  344.203909][   T73]      do_syscall_64+0xc6/0x1e0
[  344.203909][   T73] 
[  344.207238][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  344.207238][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  344.207238][   T73]      ipv6_find_idev+0x102/0x170
[  344.207238][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  344.207238][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  344.207238][   T73]      netlink_rcv_skb+0x130/0x360
[  344.207238][   T73]      netlink_unicast+0x449/0x710
[  344.207238][   T73]      netlink_sendmsg+0x723/0xbe0
[  344.207238][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  344.207238][   T73]      ___sys_sendmsg+0xee/0x170
[  344.207238][   T73]      __sys_sendmsg+0xcd/0x170
[  344.207238][   T73]      do_syscall_64+0xc6/0x1e0
[  344.207238][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  344.207238][   T73] 
[  344.209670][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  344.209670][   T73]      neigh_parms_alloc+0x1e5/0x510
[  344.209670][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  344.209670][   T73]      ipv6_find_idev+0x102/0x170
[  344.209670][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  344.209670][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  344.209670][   T73]      netlink_rcv_skb+0x130/0x360
[  344.209670][   T73]      netlink_unicast+0x449/0x710
[  344.209670][   T73]      netlink_sendmsg+0x723/0xbe0
[  344.209670][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  344.209670][   T73]      ___sys_sendmsg+0xee/0x170
[  344.209670][   T73]      __sys_sendmsg+0xcd/0x170
[  344.209670][   T73]      do_syscall_64+0xc6/0x1e0
[  344.209670][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  344.209670][   T73] 
[  354.231715][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  354.232333][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  354.232333][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  354.232333][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  354.232333][   T73]      fib6_nh_init+0xa22/0x1580
[  354.232333][   T73]      ip6_route_info_create+0xf18/0x17d0
[  354.232333][   T73]      ip6_route_add+0x1c/0x140
[  354.232333][   T73]      inet6_rtm_newroute+0x104/0x110
[  354.232333][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  354.232333][   T73]      netlink_rcv_skb+0x130/0x360
[  354.232333][   T73]      netlink_unicast+0x449/0x710
[  354.232333][   T73]      netlink_sendmsg+0x723/0xbe0
[  354.232333][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  354.232333][   T73]      ___sys_sendmsg+0xee/0x170
[  354.232333][   T73]      __sys_sendmsg+0xcd/0x170
[  354.232333][   T73]      do_syscall_64+0xc6/0x1e0
[  354.232333][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  354.232333][   T73] 
[  354.235621][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  354.235621][   T73]      dst_init+0x84/0x4a0
[  354.235621][   T73]      dst_alloc+0x97/0x150
[  354.235621][   T73]      ip6_dst_alloc+0x23/0x90
[  354.235621][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  354.235621][   T73]      ip6_pol_route+0x56f/0x840
[  354.235621][   T73]      fib6_rule_lookup+0x456/0x630
[  354.235621][   T73]      ip6_route_input+0x59c/0xa50
[  354.235621][   T73]      ipv6_rcv+0x397/0x810
[  354.235621][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  354.235621][   T73]      process_backlog+0x101/0x620
[  354.235621][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  354.235621][   T73]      net_rx_action+0x495/0xbe0
[  354.235621][   T73]      __do_softirq+0x1b5/0x7f6
[  354.235621][   T73] 
[  354.238425][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  354.238425][   T73]      netdev_get_by_index+0x5e/0x80
[  354.238425][   T73]      fib6_nh_init+0x3d8/0x1580
[  354.238425][   T73]      ip6_route_info_create+0xf18/0x17d0
[  354.238425][   T73]      ip6_route_add+0x1c/0x140
[  354.238425][   T73]      addrconf_prefix_route+0x2a6/0x430
[  354.238425][   T73]      inet6_addr_add+0x4f8/0xa40
[  354.238425][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  354.238425][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  354.238425][   T73]      netlink_rcv_skb+0x130/0x360
[  354.238425][   T73]      netlink_unicast+0x449/0x710
[  354.238425][   T73]      netlink_sendmsg+0x723/0xbe0
[  354.238425][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  354.238425][   T73]      ___sys_sendmsg+0xee/0x170
[  354.238425][   T73]      __sys_sendmsg+0xcd/0x170
[  354.238425][   T73]      do_syscall_64+0xc6/0x1e0
[  354.238425][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  354.238425][   T73] 
[  354.241905][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  354.241905][   T73]      netdev_get_by_index+0x5e/0x80
[  354.241905][   T73]      fib6_nh_init+0x3d8/0x1580
[  354.241905][   T73]      ip6_route_info_create+0xf18/0x17d0
[  354.241905][   T73]      addrconf_f6i_alloc+0x315/0x560
[  354.241905][   T73]      ipv6_add_addr+0x411/0x2000
[  354.241905][   T73]      inet6_addr_add+0x30e/0xa40
[  354.241905][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  354.241905][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  354.241905][   T73]      netlink_rcv_skb+0x130/0x360
[  354.241905][   T73]      netlink_unicast+0x449/0x710
[  354.241905][   T73]      netlink_sendmsg+0x723/0xbe0
[  354.241905][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  354.241905][   T73]      ___sys_sendmsg+0xee/0x170
[  354.241905][   T73]      __sys_sendmsg+0xcd/0x170
[  354.241905][   T73]      do_syscall_64+0xc6/0x1e0
[  354.241905][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  354.241905][   T73] 
[  354.245342][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  354.245342][   T73]      netdev_get_by_index+0x5e/0x80
[  354.245342][   T73]      fib6_nh_init+0x3d8/0x1580
[  354.245342][   T73]      ip6_route_info_create+0xf18/0x17d0
[  354.245342][   T73]      ip6_route_add+0x1c/0x140
[  354.245342][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  354.245342][   T73]      addrconf_add_dev+0xe2/0x170
[  354.245342][   T73]      inet6_addr_add+0x12f/0xa40
[  354.245342][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  354.245342][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  354.245342][   T73]      netlink_rcv_skb+0x130/0x360
[  354.245342][   T73]      netlink_unicast+0x449/0x710
[  354.245342][   T73]      netlink_sendmsg+0x723/0xbe0
[  354.245342][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  354.245342][   T73]      ___sys_sendmsg+0xee/0x170
[  354.245342][   T73]      __sys_sendmsg+0xcd/0x170
[  354.245342][   T73]      do_syscall_64+0xc6/0x1e0
[  354.245342][   T73] 
[  354.248748][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  354.248748][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  354.248748][   T73]      ipv6_find_idev+0x102/0x170
[  354.248748][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  354.248748][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  354.248748][   T73]      netlink_rcv_skb+0x130/0x360
[  354.248748][   T73]      netlink_unicast+0x449/0x710
[  354.248748][   T73]      netlink_sendmsg+0x723/0xbe0
[  354.248748][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  354.248748][   T73]      ___sys_sendmsg+0xee/0x170
[  354.248748][   T73]      __sys_sendmsg+0xcd/0x170
[  354.248748][   T73]      do_syscall_64+0xc6/0x1e0
[  354.248748][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  354.248748][   T73] 
[  354.251387][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  354.251387][   T73]      neigh_parms_alloc+0x1e5/0x510
[  354.251387][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  354.251387][   T73]      ipv6_find_idev+0x102/0x170
[  354.251387][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  354.251387][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  354.251387][   T73]      netlink_rcv_skb+0x130/0x360
[  354.251387][   T73]      netlink_unicast+0x449/0x710
[  354.251387][   T73]      netlink_sendmsg+0x723/0xbe0
[  354.251387][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  354.251387][   T73]      ___sys_sendmsg+0xee/0x170
[  354.251387][   T73]      __sys_sendmsg+0xcd/0x170
[  354.251387][   T73]      do_syscall_64+0xc6/0x1e0
[  354.251387][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  354.251387][   T73] 
[  354.254364][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  354.254853][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  354.254853][   T73]      netdev_get_by_index+0x5e/0x80
[  354.254853][   T73]      fib6_nh_init+0x3d8/0x1580
[  354.254853][   T73]      ip6_route_info_create+0xf18/0x17d0
[  354.254853][   T73]      addrconf_f6i_alloc+0x265/0x560
[  354.254853][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  354.254853][   T73]      addrconf_join_anycast+0x1c0/0x220
[  354.254853][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  354.254853][   T73]      addrconf_dad_completed+0x12b/0xe20
[  354.254853][   T73]      addrconf_dad_begin+0x310/0x670
[  354.254853][   T73]      addrconf_dad_work+0x10b/0xab0
[  354.254853][   T73]      process_one_work+0x84d/0x18a0
[  354.254853][   T73]      worker_thread+0x587/0xd30
[  354.254853][   T73]      kthread+0x28a/0x350
[  354.254853][   T73]      ret_from_fork+0x31/0x70
[  354.254853][   T73]      ret_from_fork_asm+0x1a/0x30
[  354.254853][   T73] 
[  354.258246][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  354.258246][   T73]      netdev_get_by_index+0x5e/0x80
[  354.258246][   T73]      fib6_nh_init+0x3d8/0x1580
[  354.258246][   T73]      ip6_route_info_create+0xf18/0x17d0
[  354.258246][   T73]      ip6_route_add+0x1c/0x140
[  354.258246][   T73]      addrconf_prefix_route+0x2a6/0x430
[  354.258246][   T73]      inet6_addr_add+0x4f8/0xa40
[  354.258246][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  354.258246][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  354.258246][   T73]      netlink_rcv_skb+0x130/0x360
[  354.258246][   T73]      netlink_unicast+0x449/0x710
[  354.258246][   T73]      netlink_sendmsg+0x723/0xbe0
[  354.258246][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  354.258246][   T73]      ___sys_sendmsg+0xee/0x170
[  354.258246][   T73]      __sys_sendmsg+0xcd/0x170
[  354.258246][   T73]      do_syscall_64+0xc6/0x1e0
[  354.258246][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  354.258246][   T73] 
[  354.261879][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  354.261879][   T73]      netdev_get_by_index+0x5e/0x80
[  354.261879][   T73]      fib6_nh_init+0x3d8/0x1580
[  354.261879][   T73]      ip6_route_info_create+0xf18/0x17d0
[  354.261879][   T73]      addrconf_f6i_alloc+0x315/0x560
[  354.261879][   T73]      ipv6_add_addr+0x411/0x2000
[  354.261879][   T73]      inet6_addr_add+0x30e/0xa40
[  354.261879][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  354.261879][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  354.261879][   T73]      netlink_rcv_skb+0x130/0x360
[  354.261879][   T73]      netlink_unicast+0x449/0x710
[  354.261879][   T73]      netlink_sendmsg+0x723/0xbe0
[  354.261879][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  354.261879][   T73]      ___sys_sendmsg+0xee/0x170
[  354.261879][   T73]      __sys_sendmsg+0xcd/0x170
[  354.261879][   T73]      do_syscall_64+0xc6/0x1e0
[  354.261879][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  354.261879][   T73] 
[  354.265448][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  354.265448][   T73]      netdev_get_by_index+0x5e/0x80
[  354.265448][   T73]      fib6_nh_init+0x3d8/0x1580
[  354.265448][   T73]      ip6_route_info_create+0xf18/0x17d0
[  354.265448][   T73]      ip6_route_add+0x1c/0x140
[  354.265448][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  354.265448][   T73]      addrconf_add_dev+0xe2/0x170
[  354.265448][   T73]      inet6_addr_add+0x12f/0xa40
[  354.265448][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  354.265448][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  354.265448][   T73]      netlink_rcv_skb+0x130/0x360
[  354.265448][   T73]      netlink_unicast+0x449/0x710
[  354.265448][   T73]      netlink_sendmsg+0x723/0xbe0
[  354.265448][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  354.265448][   T73]      ___sys_sendmsg+0xee/0x170
[  354.265448][   T73]      __sys_sendmsg+0xcd/0x170
[  354.265448][   T73]      do_syscall_64+0xc6/0x1e0
[  354.265448][   T73] 
[  354.268775][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  354.268775][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  354.268775][   T73]      ipv6_find_idev+0x102/0x170
[  354.268775][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  354.268775][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  354.268775][   T73]      netlink_rcv_skb+0x130/0x360
[  354.268775][   T73]      netlink_unicast+0x449/0x710
[  354.268775][   T73]      netlink_sendmsg+0x723/0xbe0
[  354.268775][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  354.268775][   T73]      ___sys_sendmsg+0xee/0x170
[  354.268775][   T73]      __sys_sendmsg+0xcd/0x170
[  354.268775][   T73]      do_syscall_64+0xc6/0x1e0
[  354.268775][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  354.268775][   T73] 
[  354.271558][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  354.271558][   T73]      neigh_parms_alloc+0x1e5/0x510
[  354.271558][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  354.271558][   T73]      ipv6_find_idev+0x102/0x170
[  354.271558][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  354.271558][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  354.271558][   T73]      netlink_rcv_skb+0x130/0x360
[  354.271558][   T73]      netlink_unicast+0x449/0x710
[  354.271558][   T73]      netlink_sendmsg+0x723/0xbe0
[  354.271558][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  354.271558][   T73]      ___sys_sendmsg+0xee/0x170
[  354.271558][   T73]      __sys_sendmsg+0xcd/0x170
[  354.271558][   T73]      do_syscall_64+0xc6/0x1e0
[  354.271558][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  354.271558][   T73] 
[  354.274682][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  354.275169][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  354.275169][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  354.275169][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  354.275169][   T73]      fib6_nh_init+0xa22/0x1580
[  354.275169][   T73]      ip6_route_info_create+0xf18/0x17d0
[  354.275169][   T73]      ip6_route_add+0x1c/0x140
[  354.275169][   T73]      inet6_rtm_newroute+0x104/0x110
[  354.275169][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  354.275169][   T73]      netlink_rcv_skb+0x130/0x360
[  354.275169][   T73]      netlink_unicast+0x449/0x710
[  354.275169][   T73]      netlink_sendmsg+0x723/0xbe0
[  354.275169][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  354.275169][   T73]      ___sys_sendmsg+0xee/0x170
[  354.275169][   T73]      __sys_sendmsg+0xcd/0x170
[  354.275169][   T73]      do_syscall_64+0xc6/0x1e0
[  354.275169][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  354.275169][   T73] 
[  354.278830][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  354.278830][   T73]      dst_init+0x84/0x4a0
[  354.278830][   T73]      dst_alloc+0x97/0x150
[  354.278830][   T73]      ip6_dst_alloc+0x23/0x90
[  354.278830][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  354.278830][   T73]      ip6_pol_route+0x56f/0x840
[  354.278830][   T73]      fib6_rule_lookup+0x456/0x630
[  354.278830][   T73]      ip6_route_input+0x59c/0xa50
[  354.278830][   T73]      ipv6_rcv+0x397/0x810
[  354.278830][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  354.278830][   T73]      process_backlog+0x101/0x620
[  354.278830][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  354.278830][   T73]      net_rx_action+0x495/0xbe0
[  354.278830][   T73]      __do_softirq+0x1b5/0x7f6
[  354.278830][   T73] 
[  354.282157][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  354.282157][   T73]      netdev_get_by_index+0x5e/0x80
[  354.282157][   T73]      fib6_nh_init+0x3d8/0x1580
[  354.282157][   T73]      ip6_route_info_create+0xf18/0x17d0
[  354.282157][   T73]      ip6_route_add+0x1c/0x140
[  354.282157][   T73]      addrconf_prefix_route+0x2a6/0x430
[  354.282157][   T73]      inet6_addr_add+0x4f8/0xa40
[  354.282157][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  354.282157][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  354.282157][   T73]      netlink_rcv_skb+0x130/0x360
[  354.282157][   T73]      netlink_unicast+0x449/0x710
[  354.282157][   T73]      netlink_sendmsg+0x723/0xbe0
[  354.282157][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  354.282157][   T73]      ___sys_sendmsg+0xee/0x170
[  354.282157][   T73]      __sys_sendmsg+0xcd/0x170
[  354.282157][   T73]      do_syscall_64+0xc6/0x1e0
[  354.282157][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  354.282157][   T73] 
[  354.286014][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  354.286014][   T73]      netdev_get_by_index+0x5e/0x80
[  354.286014][   T73]      fib6_nh_init+0x3d8/0x1580
[  354.286014][   T73]      ip6_route_info_create+0xf18/0x17d0
[  354.286014][   T73]      addrconf_f6i_alloc+0x315/0x560
[  354.286014][   T73]      ipv6_add_addr+0x411/0x2000
[  354.286014][   T73]      inet6_addr_add+0x30e/0xa40
[  354.286014][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  354.286014][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  354.286014][   T73]      netlink_rcv_skb+0x130/0x360
[  354.286014][   T73]      netlink_unicast+0x449/0x710
[  354.286014][   T73]      netlink_sendmsg+0x723/0xbe0
[  354.286014][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  354.286014][   T73]      ___sys_sendmsg+0xee/0x170
[  354.286014][   T73]      __sys_sendmsg+0xcd/0x170
[  354.286014][   T73]      do_syscall_64+0xc6/0x1e0
[  354.286014][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  354.286014][   T73] 
[  354.289777][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  354.289777][   T73]      netdev_get_by_index+0x5e/0x80
[  354.289777][   T73]      fib6_nh_init+0x3d8/0x1580
[  354.289777][   T73]      ip6_route_info_create+0xf18/0x17d0
[  354.289777][   T73]      ip6_route_add+0x1c/0x140
[  354.289777][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  354.289777][   T73]      addrconf_add_dev+0xe2/0x170
[  354.289777][   T73]      inet6_addr_add+0x12f/0xa40
[  354.289777][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  354.289777][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  354.289777][   T73]      netlink_rcv_skb+0x130/0x360
[  354.289777][   T73]      netlink_unicast+0x449/0x710
[  354.289777][   T73]      netlink_sendmsg+0x723/0xbe0
[  354.289777][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  354.289777][   T73]      ___sys_sendmsg+0xee/0x170
[  354.289777][   T73]      __sys_sendmsg+0xcd/0x170
[  354.289777][   T73]      do_syscall_64+0xc6/0x1e0
[  354.289777][   T73] 
[  354.293633][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  354.293633][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  354.293633][   T73]      ipv6_find_idev+0x102/0x170
[  354.293633][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  354.293633][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  354.293633][   T73]      netlink_rcv_skb+0x130/0x360
[  354.293633][   T73]      netlink_unicast+0x449/0x710
[  354.293633][   T73]      netlink_sendmsg+0x723/0xbe0
[  354.293633][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  354.293633][   T73]      ___sys_sendmsg+0xee/0x170
[  354.293633][   T73]      __sys_sendmsg+0xcd/0x170
[  354.293633][   T73]      do_syscall_64+0xc6/0x1e0
[  354.293633][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  354.293633][   T73] 
[  354.296544][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  354.296544][   T73]      neigh_parms_alloc+0x1e5/0x510
[  354.296544][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  354.296544][   T73]      ipv6_find_idev+0x102/0x170
[  354.296544][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  354.296544][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  354.296544][   T73]      netlink_rcv_skb+0x130/0x360
[  354.296544][   T73]      netlink_unicast+0x449/0x710
[  354.296544][   T73]      netlink_sendmsg+0x723/0xbe0
[  354.296544][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  354.296544][   T73]      ___sys_sendmsg+0xee/0x170
[  354.296544][   T73]      __sys_sendmsg+0xcd/0x170
[  354.296544][   T73]      do_syscall_64+0xc6/0x1e0
[  354.296544][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  354.296544][   T73] 
[  354.299543][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  354.300431][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  354.300431][   T73]      netdev_get_by_index+0x5e/0x80
[  354.300431][   T73]      fib6_nh_init+0x3d8/0x1580
[  354.300431][   T73]      ip6_route_info_create+0xf18/0x17d0
[  354.300431][   T73]      addrconf_f6i_alloc+0x265/0x560
[  354.300431][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  354.300431][   T73]      addrconf_join_anycast+0x1c0/0x220
[  354.300431][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  354.300431][   T73]      addrconf_dad_completed+0x12b/0xe20
[  354.300431][   T73]      addrconf_dad_begin+0x310/0x670
[  354.300431][   T73]      addrconf_dad_work+0x10b/0xab0
[  354.300431][   T73]      process_one_work+0x84d/0x18a0
[  354.300431][   T73]      worker_thread+0x587/0xd30
[  354.300431][   T73]      kthread+0x28a/0x350
[  354.300431][   T73]      ret_from_fork+0x31/0x70
[  354.300431][   T73]      ret_from_fork_asm+0x1a/0x30
[  354.300431][   T73] 
[  354.303100][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  354.303100][   T73]      netdev_get_by_index+0x5e/0x80
[  354.303100][   T73]      fib6_nh_init+0x3d8/0x1580
[  354.303100][   T73]      ip6_route_info_create+0xf18/0x17d0
[  354.303100][   T73]      ip6_route_add+0x1c/0x140
[  354.303100][   T73]      addrconf_prefix_route+0x2a6/0x430
[  354.303100][   T73]      inet6_addr_add+0x4f8/0xa40
[  354.303100][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  354.303100][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  354.303100][   T73]      netlink_rcv_skb+0x130/0x360
[  354.303100][   T73]      netlink_unicast+0x449/0x710
[  354.303100][   T73]      netlink_sendmsg+0x723/0xbe0
[  354.303100][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  354.303100][   T73]      ___sys_sendmsg+0xee/0x170
[  354.303100][   T73]      __sys_sendmsg+0xcd/0x170
[  354.303100][   T73]      do_syscall_64+0xc6/0x1e0
[  354.303100][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  354.303100][   T73] 
[  354.306574][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  354.306574][   T73]      netdev_get_by_index+0x5e/0x80
[  354.306574][   T73]      fib6_nh_init+0x3d8/0x1580
[  354.306574][   T73]      ip6_route_info_create+0xf18/0x17d0
[  354.306574][   T73]      addrconf_f6i_alloc+0x315/0x560
[  354.306574][   T73]      ipv6_add_addr+0x411/0x2000
[  354.306574][   T73]      inet6_addr_add+0x30e/0xa40
[  354.306574][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  354.306574][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  354.306574][   T73]      netlink_rcv_skb+0x130/0x360
[  354.306574][   T73]      netlink_unicast+0x449/0x710
[  354.306574][   T73]      netlink_sendmsg+0x723/0xbe0
[  354.306574][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  354.306574][   T73]      ___sys_sendmsg+0xee/0x170
[  354.306574][   T73]      __sys_sendmsg+0xcd/0x170
[  354.306574][   T73]      do_syscall_64+0xc6/0x1e0
[  354.306574][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  354.306574][   T73] 
[  354.309811][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  354.309811][   T73]      netdev_get_by_index+0x5e/0x80
[  354.309811][   T73]      fib6_nh_init+0x3d8/0x1580
[  354.309811][   T73]      ip6_route_info_create+0xf18/0x17d0
[  354.309811][   T73]      ip6_route_add+0x1c/0x140
[  354.309811][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  354.309811][   T73]      addrconf_add_dev+0xe2/0x170
[  354.309811][   T73]      inet6_addr_add+0x12f/0xa40
[  354.309811][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  354.309811][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  354.309811][   T73]      netlink_rcv_skb+0x130/0x360
[  354.309811][   T73]      netlink_unicast+0x449/0x710
[  354.309811][   T73]      netlink_sendmsg+0x723/0xbe0
[  354.309811][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  354.309811][   T73]      ___sys_sendmsg+0xee/0x170
[  354.309811][   T73]      __sys_sendmsg+0xcd/0x170
[  354.309811][   T73]      do_syscall_64+0xc6/0x1e0
[  354.309811][   T73] 
[  354.312634][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  354.312634][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  354.312634][   T73]      ipv6_find_idev+0x102/0x170
[  354.312634][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  354.312634][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  354.312634][   T73]      netlink_rcv_skb+0x130/0x360
[  354.312634][   T73]      netlink_unicast+0x449/0x710
[  354.312634][   T73]      netlink_sendmsg+0x723/0xbe0
[  354.312634][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  354.312634][   T73]      ___sys_sendmsg+0xee/0x170
[  354.312634][   T73]      __sys_sendmsg+0xcd/0x170
[  354.312634][   T73]      do_syscall_64+0xc6/0x1e0
[  354.312634][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  354.312634][   T73] 
[  354.315142][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  354.315142][   T73]      neigh_parms_alloc+0x1e5/0x510
[  354.315142][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  354.315142][   T73]      ipv6_find_idev+0x102/0x170
[  354.315142][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  354.315142][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  354.315142][   T73]      netlink_rcv_skb+0x130/0x360
[  354.315142][   T73]      netlink_unicast+0x449/0x710
[  354.315142][   T73]      netlink_sendmsg+0x723/0xbe0
[  354.315142][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  354.315142][   T73]      ___sys_sendmsg+0xee/0x170
[  354.315142][   T73]      __sys_sendmsg+0xcd/0x170
[  354.315142][   T73]      do_syscall_64+0xc6/0x1e0
[  354.315142][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  354.315142][   T73] 
[  364.319737][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  364.320164][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  364.320164][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  364.320164][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  364.320164][   T73]      fib6_nh_init+0xa22/0x1580
[  364.320164][   T73]      ip6_route_info_create+0xf18/0x17d0
[  364.320164][   T73]      ip6_route_add+0x1c/0x140
[  364.320164][   T73]      inet6_rtm_newroute+0x104/0x110
[  364.320164][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  364.320164][   T73]      netlink_rcv_skb+0x130/0x360
[  364.320164][   T73]      netlink_unicast+0x449/0x710
[  364.320164][   T73]      netlink_sendmsg+0x723/0xbe0
[  364.320164][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  364.320164][   T73]      ___sys_sendmsg+0xee/0x170
[  364.320164][   T73]      __sys_sendmsg+0xcd/0x170
[  364.320164][   T73]      do_syscall_64+0xc6/0x1e0
[  364.320164][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  364.320164][   T73] 
[  364.322119][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  364.322119][   T73]      dst_init+0x84/0x4a0
[  364.322119][   T73]      dst_alloc+0x97/0x150
[  364.322119][   T73]      ip6_dst_alloc+0x23/0x90
[  364.322119][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  364.322119][   T73]      ip6_pol_route+0x56f/0x840
[  364.322119][   T73]      fib6_rule_lookup+0x456/0x630
[  364.322119][   T73]      ip6_route_input+0x59c/0xa50
[  364.322119][   T73]      ipv6_rcv+0x397/0x810
[  364.322119][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  364.322119][   T73]      process_backlog+0x101/0x620
[  364.322119][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  364.322119][   T73]      net_rx_action+0x495/0xbe0
[  364.322119][   T73]      __do_softirq+0x1b5/0x7f6
[  364.322119][   T73] 
[  364.323771][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  364.323771][   T73]      netdev_get_by_index+0x5e/0x80
[  364.323771][   T73]      fib6_nh_init+0x3d8/0x1580
[  364.323771][   T73]      ip6_route_info_create+0xf18/0x17d0
[  364.323771][   T73]      ip6_route_add+0x1c/0x140
[  364.323771][   T73]      addrconf_prefix_route+0x2a6/0x430
[  364.323771][   T73]      inet6_addr_add+0x4f8/0xa40
[  364.323771][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  364.323771][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  364.323771][   T73]      netlink_rcv_skb+0x130/0x360
[  364.323771][   T73]      netlink_unicast+0x449/0x710
[  364.323771][   T73]      netlink_sendmsg+0x723/0xbe0
[  364.323771][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  364.323771][   T73]      ___sys_sendmsg+0xee/0x170
[  364.323771][   T73]      __sys_sendmsg+0xcd/0x170
[  364.323771][   T73]      do_syscall_64+0xc6/0x1e0
[  364.323771][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  364.323771][   T73] 
[  364.325780][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  364.325780][   T73]      netdev_get_by_index+0x5e/0x80
[  364.325780][   T73]      fib6_nh_init+0x3d8/0x1580
[  364.325780][   T73]      ip6_route_info_create+0xf18/0x17d0
[  364.325780][   T73]      addrconf_f6i_alloc+0x315/0x560
[  364.325780][   T73]      ipv6_add_addr+0x411/0x2000
[  364.325780][   T73]      inet6_addr_add+0x30e/0xa40
[  364.325780][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  364.325780][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  364.325780][   T73]      netlink_rcv_skb+0x130/0x360
[  364.325780][   T73]      netlink_unicast+0x449/0x710
[  364.325780][   T73]      netlink_sendmsg+0x723/0xbe0
[  364.325780][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  364.325780][   T73]      ___sys_sendmsg+0xee/0x170
[  364.325780][   T73]      __sys_sendmsg+0xcd/0x170
[  364.325780][   T73]      do_syscall_64+0xc6/0x1e0
[  364.325780][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  364.325780][   T73] 
[  364.327986][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  364.327986][   T73]      netdev_get_by_index+0x5e/0x80
[  364.327986][   T73]      fib6_nh_init+0x3d8/0x1580
[  364.327986][   T73]      ip6_route_info_create+0xf18/0x17d0
[  364.327986][   T73]      ip6_route_add+0x1c/0x140
[  364.327986][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  364.327986][   T73]      addrconf_add_dev+0xe2/0x170
[  364.327986][   T73]      inet6_addr_add+0x12f/0xa40
[  364.327986][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  364.327986][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  364.327986][   T73]      netlink_rcv_skb+0x130/0x360
[  364.327986][   T73]      netlink_unicast+0x449/0x710
[  364.327986][   T73]      netlink_sendmsg+0x723/0xbe0
[  364.327986][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  364.327986][   T73]      ___sys_sendmsg+0xee/0x170
[  364.327986][   T73]      __sys_sendmsg+0xcd/0x170
[  364.327986][   T73]      do_syscall_64+0xc6/0x1e0
[  364.327986][   T73] 
[  364.330152][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  364.330152][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  364.330152][   T73]      ipv6_find_idev+0x102/0x170
[  364.330152][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  364.330152][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  364.330152][   T73]      netlink_rcv_skb+0x130/0x360
[  364.330152][   T73]      netlink_unicast+0x449/0x710
[  364.330152][   T73]      netlink_sendmsg+0x723/0xbe0
[  364.330152][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  364.330152][   T73]      ___sys_sendmsg+0xee/0x170
[  364.330152][   T73]      __sys_sendmsg+0xcd/0x170
[  364.330152][   T73]      do_syscall_64+0xc6/0x1e0
[  364.330152][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  364.330152][   T73] 
[  364.331857][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  364.331857][   T73]      neigh_parms_alloc+0x1e5/0x510
[  364.331857][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  364.331857][   T73]      ipv6_find_idev+0x102/0x170
[  364.331857][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  364.331857][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  364.331857][   T73]      netlink_rcv_skb+0x130/0x360
[  364.331857][   T73]      netlink_unicast+0x449/0x710
[  364.331857][   T73]      netlink_sendmsg+0x723/0xbe0
[  364.331857][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  364.331857][   T73]      ___sys_sendmsg+0xee/0x170
[  364.331857][   T73]      __sys_sendmsg+0xcd/0x170
[  364.331857][   T73]      do_syscall_64+0xc6/0x1e0
[  364.331857][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  364.331857][   T73] 
[  364.333774][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  364.334089][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  364.334089][   T73]      netdev_get_by_index+0x5e/0x80
[  364.334089][   T73]      fib6_nh_init+0x3d8/0x1580
[  364.334089][   T73]      ip6_route_info_create+0xf18/0x17d0
[  364.334089][   T73]      addrconf_f6i_alloc+0x265/0x560
[  364.334089][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  364.334089][   T73]      addrconf_join_anycast+0x1c0/0x220
[  364.334089][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  364.334089][   T73]      addrconf_dad_completed+0x12b/0xe20
[  364.334089][   T73]      addrconf_dad_begin+0x310/0x670
[  364.334089][   T73]      addrconf_dad_work+0x10b/0xab0
[  364.334089][   T73]      process_one_work+0x84d/0x18a0
[  364.334089][   T73]      worker_thread+0x587/0xd30
[  364.334089][   T73]      kthread+0x28a/0x350
[  364.334089][   T73]      ret_from_fork+0x31/0x70
[  364.334089][   T73]      ret_from_fork_asm+0x1a/0x30
[  364.334089][   T73] 
[  364.336209][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  364.336209][   T73]      netdev_get_by_index+0x5e/0x80
[  364.336209][   T73]      fib6_nh_init+0x3d8/0x1580
[  364.336209][   T73]      ip6_route_info_create+0xf18/0x17d0
[  364.336209][   T73]      ip6_route_add+0x1c/0x140
[  364.336209][   T73]      addrconf_prefix_route+0x2a6/0x430
[  364.336209][   T73]      inet6_addr_add+0x4f8/0xa40
[  364.336209][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  364.336209][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  364.336209][   T73]      netlink_rcv_skb+0x130/0x360
[  364.336209][   T73]      netlink_unicast+0x449/0x710
[  364.336209][   T73]      netlink_sendmsg+0x723/0xbe0
[  364.336209][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  364.336209][   T73]      ___sys_sendmsg+0xee/0x170
[  364.336209][   T73]      __sys_sendmsg+0xcd/0x170
[  364.336209][   T73]      do_syscall_64+0xc6/0x1e0
[  364.336209][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  364.336209][   T73] 
[  364.338269][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  364.338269][   T73]      netdev_get_by_index+0x5e/0x80
[  364.338269][   T73]      fib6_nh_init+0x3d8/0x1580
[  364.338269][   T73]      ip6_route_info_create+0xf18/0x17d0
[  364.338269][   T73]      addrconf_f6i_alloc+0x315/0x560
[  364.338269][   T73]      ipv6_add_addr+0x411/0x2000
[  364.338269][   T73]      inet6_addr_add+0x30e/0xa40
[  364.338269][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  364.338269][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  364.338269][   T73]      netlink_rcv_skb+0x130/0x360
[  364.338269][   T73]      netlink_unicast+0x449/0x710
[  364.338269][   T73]      netlink_sendmsg+0x723/0xbe0
[  364.338269][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  364.338269][   T73]      ___sys_sendmsg+0xee/0x170
[  364.338269][   T73]      __sys_sendmsg+0xcd/0x170
[  364.338269][   T73]      do_syscall_64+0xc6/0x1e0
[  364.338269][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  364.338269][   T73] 
[  364.340261][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  364.340261][   T73]      netdev_get_by_index+0x5e/0x80
[  364.340261][   T73]      fib6_nh_init+0x3d8/0x1580
[  364.340261][   T73]      ip6_route_info_create+0xf18/0x17d0
[  364.340261][   T73]      ip6_route_add+0x1c/0x140
[  364.340261][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  364.340261][   T73]      addrconf_add_dev+0xe2/0x170
[  364.340261][   T73]      inet6_addr_add+0x12f/0xa40
[  364.340261][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  364.340261][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  364.340261][   T73]      netlink_rcv_skb+0x130/0x360
[  364.340261][   T73]      netlink_unicast+0x449/0x710
[  364.340261][   T73]      netlink_sendmsg+0x723/0xbe0
[  364.340261][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  364.340261][   T73]      ___sys_sendmsg+0xee/0x170
[  364.340261][   T73]      __sys_sendmsg+0xcd/0x170
[  364.340261][   T73]      do_syscall_64+0xc6/0x1e0
[  364.340261][   T73] 
[  364.342210][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  364.342210][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  364.342210][   T73]      ipv6_find_idev+0x102/0x170
[  364.342210][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  364.342210][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  364.342210][   T73]      netlink_rcv_skb+0x130/0x360
[  364.342210][   T73]      netlink_unicast+0x449/0x710
[  364.342210][   T73]      netlink_sendmsg+0x723/0xbe0
[  364.342210][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  364.342210][   T73]      ___sys_sendmsg+0xee/0x170
[  364.342210][   T73]      __sys_sendmsg+0xcd/0x170
[  364.342210][   T73]      do_syscall_64+0xc6/0x1e0
[  364.342210][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  364.342210][   T73] 
[  364.343756][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  364.343756][   T73]      neigh_parms_alloc+0x1e5/0x510
[  364.343756][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  364.343756][   T73]      ipv6_find_idev+0x102/0x170
[  364.343756][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  364.343756][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  364.343756][   T73]      netlink_rcv_skb+0x130/0x360
[  364.343756][   T73]      netlink_unicast+0x449/0x710
[  364.343756][   T73]      netlink_sendmsg+0x723/0xbe0
[  364.343756][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  364.343756][   T73]      ___sys_sendmsg+0xee/0x170
[  364.343756][   T73]      __sys_sendmsg+0xcd/0x170
[  364.343756][   T73]      do_syscall_64+0xc6/0x1e0
[  364.343756][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  364.343756][   T73] 
[  364.345443][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  364.345719][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  364.345719][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  364.345719][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  364.345719][   T73]      fib6_nh_init+0xa22/0x1580
[  364.345719][   T73]      ip6_route_info_create+0xf18/0x17d0
[  364.345719][   T73]      ip6_route_add+0x1c/0x140
[  364.345719][   T73]      inet6_rtm_newroute+0x104/0x110
[  364.345719][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  364.345719][   T73]      netlink_rcv_skb+0x130/0x360
[  364.345719][   T73]      netlink_unicast+0x449/0x710
[  364.345719][   T73]      netlink_sendmsg+0x723/0xbe0
[  364.345719][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  364.345719][   T73]      ___sys_sendmsg+0xee/0x170
[  364.345719][   T73]      __sys_sendmsg+0xcd/0x170
[  364.345719][   T73]      do_syscall_64+0xc6/0x1e0
[  364.345719][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  364.345719][   T73] 
[  364.347726][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  364.347726][   T73]      dst_init+0x84/0x4a0
[  364.347726][   T73]      dst_alloc+0x97/0x150
[  364.347726][   T73]      ip6_dst_alloc+0x23/0x90
[  364.347726][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  364.347726][   T73]      ip6_pol_route+0x56f/0x840
[  364.347726][   T73]      fib6_rule_lookup+0x456/0x630
[  364.347726][   T73]      ip6_route_input+0x59c/0xa50
[  364.347726][   T73]      ipv6_rcv+0x397/0x810
[  364.347726][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  364.347726][   T73]      process_backlog+0x101/0x620
[  364.347726][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  364.347726][   T73]      net_rx_action+0x495/0xbe0
[  364.347726][   T73]      __do_softirq+0x1b5/0x7f6
[  364.347726][   T73] 
[  364.349673][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  364.349673][   T73]      netdev_get_by_index+0x5e/0x80
[  364.349673][   T73]      fib6_nh_init+0x3d8/0x1580
[  364.349673][   T73]      ip6_route_info_create+0xf18/0x17d0
[  364.349673][   T73]      ip6_route_add+0x1c/0x140
[  364.349673][   T73]      addrconf_prefix_route+0x2a6/0x430
[  364.349673][   T73]      inet6_addr_add+0x4f8/0xa40
[  364.349673][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  364.349673][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  364.349673][   T73]      netlink_rcv_skb+0x130/0x360
[  364.349673][   T73]      netlink_unicast+0x449/0x710
[  364.349673][   T73]      netlink_sendmsg+0x723/0xbe0
[  364.349673][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  364.349673][   T73]      ___sys_sendmsg+0xee/0x170
[  364.349673][   T73]      __sys_sendmsg+0xcd/0x170
[  364.349673][   T73]      do_syscall_64+0xc6/0x1e0
[  364.349673][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  364.349673][   T73] 
[  364.351854][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  364.351854][   T73]      netdev_get_by_index+0x5e/0x80
[  364.351854][   T73]      fib6_nh_init+0x3d8/0x1580
[  364.351854][   T73]      ip6_route_info_create+0xf18/0x17d0
[  364.351854][   T73]      addrconf_f6i_alloc+0x315/0x560
[  364.351854][   T73]      ipv6_add_addr+0x411/0x2000
[  364.351854][   T73]      inet6_addr_add+0x30e/0xa40
[  364.351854][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  364.351854][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  364.351854][   T73]      netlink_rcv_skb+0x130/0x360
[  364.351854][   T73]      netlink_unicast+0x449/0x710
[  364.351854][   T73]      netlink_sendmsg+0x723/0xbe0
[  364.351854][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  364.351854][   T73]      ___sys_sendmsg+0xee/0x170
[  364.351854][   T73]      __sys_sendmsg+0xcd/0x170
[  364.351854][   T73]      do_syscall_64+0xc6/0x1e0
[  364.351854][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  364.351854][   T73] 
[  364.354113][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  364.354113][   T73]      netdev_get_by_index+0x5e/0x80
[  364.354113][   T73]      fib6_nh_init+0x3d8/0x1580
[  364.354113][   T73]      ip6_route_info_create+0xf18/0x17d0
[  364.354113][   T73]      ip6_route_add+0x1c/0x140
[  364.354113][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  364.354113][   T73]      addrconf_add_dev+0xe2/0x170
[  364.354113][   T73]      inet6_addr_add+0x12f/0xa40
[  364.354113][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  364.354113][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  364.354113][   T73]      netlink_rcv_skb+0x130/0x360
[  364.354113][   T73]      netlink_unicast+0x449/0x710
[  364.354113][   T73]      netlink_sendmsg+0x723/0xbe0
[  364.354113][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  364.354113][   T73]      ___sys_sendmsg+0xee/0x170
[  364.354113][   T73]      __sys_sendmsg+0xcd/0x170
[  364.354113][   T73]      do_syscall_64+0xc6/0x1e0
[  364.354113][   T73] 
[  364.356314][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  364.356314][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  364.356314][   T73]      ipv6_find_idev+0x102/0x170
[  364.356314][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  364.356314][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  364.356314][   T73]      netlink_rcv_skb+0x130/0x360
[  364.356314][   T73]      netlink_unicast+0x449/0x710
[  364.356314][   T73]      netlink_sendmsg+0x723/0xbe0
[  364.356314][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  364.356314][   T73]      ___sys_sendmsg+0xee/0x170
[  364.356314][   T73]      __sys_sendmsg+0xcd/0x170
[  364.356314][   T73]      do_syscall_64+0xc6/0x1e0
[  364.356314][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  364.356314][   T73] 
[  364.358037][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  364.358037][   T73]      neigh_parms_alloc+0x1e5/0x510
[  364.358037][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  364.358037][   T73]      ipv6_find_idev+0x102/0x170
[  364.358037][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  364.358037][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  364.358037][   T73]      netlink_rcv_skb+0x130/0x360
[  364.358037][   T73]      netlink_unicast+0x449/0x710
[  364.358037][   T73]      netlink_sendmsg+0x723/0xbe0
[  364.358037][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  364.358037][   T73]      ___sys_sendmsg+0xee/0x170
[  364.358037][   T73]      __sys_sendmsg+0xcd/0x170
[  364.358037][   T73]      do_syscall_64+0xc6/0x1e0
[  364.358037][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  364.358037][   T73] 
[  364.359967][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  364.360302][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  364.360302][   T73]      netdev_get_by_index+0x5e/0x80
[  364.360302][   T73]      fib6_nh_init+0x3d8/0x1580
[  364.360302][   T73]      ip6_route_info_create+0xf18/0x17d0
[  364.360302][   T73]      addrconf_f6i_alloc+0x265/0x560
[  364.360302][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  364.360302][   T73]      addrconf_join_anycast+0x1c0/0x220
[  364.360302][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  364.360302][   T73]      addrconf_dad_completed+0x12b/0xe20
[  364.360302][   T73]      addrconf_dad_begin+0x310/0x670
[  364.360302][   T73]      addrconf_dad_work+0x10b/0xab0
[  364.360302][   T73]      process_one_work+0x84d/0x18a0
[  364.360302][   T73]      worker_thread+0x587/0xd30
[  364.360302][   T73]      kthread+0x28a/0x350
[  364.360302][   T73]      ret_from_fork+0x31/0x70
[  364.360302][   T73]      ret_from_fork_asm+0x1a/0x30
[  364.360302][   T73] 
[  364.362384][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  364.362384][   T73]      netdev_get_by_index+0x5e/0x80
[  364.362384][   T73]      fib6_nh_init+0x3d8/0x1580
[  364.362384][   T73]      ip6_route_info_create+0xf18/0x17d0
[  364.362384][   T73]      ip6_route_add+0x1c/0x140
[  364.362384][   T73]      addrconf_prefix_route+0x2a6/0x430
[  364.362384][   T73]      inet6_addr_add+0x4f8/0xa40
[  364.362384][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  364.362384][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  364.362384][   T73]      netlink_rcv_skb+0x130/0x360
[  364.362384][   T73]      netlink_unicast+0x449/0x710
[  364.362384][   T73]      netlink_sendmsg+0x723/0xbe0
[  364.362384][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  364.362384][   T73]      ___sys_sendmsg+0xee/0x170
[  364.362384][   T73]      __sys_sendmsg+0xcd/0x170
[  364.362384][   T73]      do_syscall_64+0xc6/0x1e0
[  364.362384][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  364.362384][   T73] 
[  364.364638][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  364.364638][   T73]      netdev_get_by_index+0x5e/0x80
[  364.364638][   T73]      fib6_nh_init+0x3d8/0x1580
[  364.364638][   T73]      ip6_route_info_create+0xf18/0x17d0
[  364.364638][   T73]      addrconf_f6i_alloc+0x315/0x560
[  364.364638][   T73]      ipv6_add_addr+0x411/0x2000
[  364.364638][   T73]      inet6_addr_add+0x30e/0xa40
[  364.364638][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  364.364638][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  364.364638][   T73]      netlink_rcv_skb+0x130/0x360
[  364.364638][   T73]      netlink_unicast+0x449/0x710
[  364.364638][   T73]      netlink_sendmsg+0x723/0xbe0
[  364.364638][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  364.364638][   T73]      ___sys_sendmsg+0xee/0x170
[  364.364638][   T73]      __sys_sendmsg+0xcd/0x170
[  364.364638][   T73]      do_syscall_64+0xc6/0x1e0
[  364.364638][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  364.364638][   T73] 
[  364.366858][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  364.366858][   T73]      netdev_get_by_index+0x5e/0x80
[  364.366858][   T73]      fib6_nh_init+0x3d8/0x1580
[  364.366858][   T73]      ip6_route_info_create+0xf18/0x17d0
[  364.366858][   T73]      ip6_route_add+0x1c/0x140
[  364.366858][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  364.366858][   T73]      addrconf_add_dev+0xe2/0x170
[  364.366858][   T73]      inet6_addr_add+0x12f/0xa40
[  364.366858][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  364.366858][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  364.366858][   T73]      netlink_rcv_skb+0x130/0x360
[  364.366858][   T73]      netlink_unicast+0x449/0x710
[  364.366858][   T73]      netlink_sendmsg+0x723/0xbe0
[  364.366858][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  364.366858][   T73]      ___sys_sendmsg+0xee/0x170
[  364.366858][   T73]      __sys_sendmsg+0xcd/0x170
[  364.366858][   T73]      do_syscall_64+0xc6/0x1e0
[  364.366858][   T73] 
[  364.369268][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  364.369268][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  364.369268][   T73]      ipv6_find_idev+0x102/0x170
[  364.369268][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  364.369268][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  364.369268][   T73]      netlink_rcv_skb+0x130/0x360
[  364.369268][   T73]      netlink_unicast+0x449/0x710
[  364.369268][   T73]      netlink_sendmsg+0x723/0xbe0
[  364.369268][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  364.369268][   T73]      ___sys_sendmsg+0xee/0x170
[  364.369268][   T73]      __sys_sendmsg+0xcd/0x170
[  364.369268][   T73]      do_syscall_64+0xc6/0x1e0
[  364.369268][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  364.369268][   T73] 
[  364.371161][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  364.371161][   T73]      neigh_parms_alloc+0x1e5/0x510
[  364.371161][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  364.371161][   T73]      ipv6_find_idev+0x102/0x170
[  364.371161][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  364.371161][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  364.371161][   T73]      netlink_rcv_skb+0x130/0x360
[  364.371161][   T73]      netlink_unicast+0x449/0x710
[  364.371161][   T73]      netlink_sendmsg+0x723/0xbe0
[  364.371161][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  364.371161][   T73]      ___sys_sendmsg+0xee/0x170
[  364.371161][   T73]      __sys_sendmsg+0xcd/0x170
[  364.371161][   T73]      do_syscall_64+0xc6/0x1e0
[  364.371161][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  364.371161][   T73] 
[  369.959751][   T42] INFO: task modprobe:885 blocked for more than 122 seconds.
[  369.960275][   T42]       Not tainted 6.8.0-virtme #1
[  369.960396][   T42] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  369.960595][   T42] task:modprobe        state:D stack:25856 pid:885   tgid:885   ppid:39     flags:0x00004002
[  369.960871][   T42] Call Trace:
[  369.960971][   T42]  <TASK>
[  369.961048][   T42]  __schedule+0x705/0x1ac0
[  369.961189][   T42]  ? __pfx___schedule+0x10/0x10
[  369.961315][   T42]  ? schedule+0x1a5/0x210
[  369.961411][   T42]  ? __pfx_lock_acquire.part.0+0x10/0x10
[  369.961539][   T42]  ? mark_lock+0x38/0x3e0
[  369.961633][   T42]  ? do_raw_spin_lock+0x131/0x270
[  369.962080][   T42]  ? schedule+0x1a5/0x210
[  369.962181][   T42]  schedule+0xdf/0x210
[  369.962276][   T42]  schedule_preempt_disabled+0x15/0x30
[  369.962400][   T42]  rwsem_down_write_slowpath+0x3af/0xab0
[  369.962531][   T42]  ? __pfx_rwsem_down_write_slowpath+0x10/0x10
[  369.962710][   T42]  ? __pfx_lock_acquire.part.0+0x10/0x10
[  369.962841][   T42]  ? lock_acquire+0x1c1/0x220
[  369.962968][   T42]  ? register_pernet_subsys+0x1a/0x50
[  369.963100][   T42]  down_write+0x1c9/0x200
[  369.963195][   T42]  ? __pfx_down_write+0x10/0x10
[  369.963318][   T42]  ? __lock_release+0x103/0x460
[  369.963443][   T42]  ? __create_object+0x5e/0xb0
[  369.963582][   T42]  ? __pfx___lock_release+0x10/0x10
[  369.963719][   T42]  register_pernet_subsys+0x1a/0x50
[  369.963845][   T42]  tcf_register_action+0xa3/0x600
[  369.963973][   T42]  ? __pfx_pedit_init_module+0x10/0x10 [act_pedit]
[  369.964137][   T42]  do_one_initcall+0xc8/0x3f0
[  369.964264][   T42]  ? __pfx_do_one_initcall+0x10/0x10
[  369.964395][   T42]  ? __create_object+0x5e/0xb0
[  369.964525][   T42]  ? kasan_unpoison+0x27/0x60
[  369.964681][   T42]  do_init_module+0x233/0x740
[  369.964822][   T42]  load_module+0x16b5/0x2350
[  369.964955][   T42]  ? __pfx_load_module+0x10/0x10
[  369.965078][   T42]  ? kernel_read_file+0x3d2/0x520
[  369.965207][   T42]  ? kernel_read_file+0x300/0x520
[  369.965336][   T42]  ? __pfx_kernel_read_file+0x10/0x10
[  369.965469][   T42]  ? init_module_from_file+0xd2/0x130
[  369.965590][   T42]  init_module_from_file+0xd2/0x130
[  369.965727][   T42]  ? __pfx_init_module_from_file+0x10/0x10
[  369.965882][   T42]  ? __lock_release+0x103/0x460
[  369.966003][   T42]  ? idempotent_init_module+0x32a/0x620
[  369.966135][   T42]  ? idempotent_init_module+0x32a/0x620
[  369.966262][   T42]  ? do_raw_spin_unlock+0x58/0x220
[  369.966389][   T42]  idempotent_init_module+0x342/0x620
[  369.966516][   T42]  ? __pfx_idempotent_init_module+0x10/0x10
[  369.966703][   T42]  __x64_sys_finit_module+0xbe/0x130
[  369.966833][   T42]  do_syscall_64+0xc6/0x1e0
[  369.966959][   T42]  entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  369.967120][   T42] RIP: 0033:0x7f505b1e4e5d
[  369.967421][   T42] RSP: 002b:00007ffe4f186f28 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[  369.967623][   T42] RAX: ffffffffffffffda RBX: 000055ce7b6ccc80 RCX: 00007f505b1e4e5d
[  369.967833][   T42] RDX: 0000000000000000 RSI: 000055ce5e14da2a RDI: 0000000000000000
[  369.968017][   T42] RBP: 0000000000040000 R08: 0000000000000000 R09: 00007ffe4f187060
[  369.968204][   T42] R10: 0000000000000000 R11: 0000000000000246 R12: 000055ce5e14da2a
[  369.968390][   T42] R13: 000055ce7b6ccac0 R14: 000055ce7b6cd0b0 R15: 000055ce7b6cccf2
[  369.968587][   T42]  </TASK>
[  369.968708][   T42] 
[  369.968708][   T42] Showing all locks held in the system:
[  369.968896][   T42] 2 locks held by kworker/u20:0/39:
[  369.969018][   T42]  #0: ffff888001161d48 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0
[  369.969284][   T42]  #1: ffffc900002c7da0 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0
[  369.969563][   T42] 1 lock held by khungtaskd/42:
[  369.969707][   T42]  #0: ffffffffaf7591e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x350
[  369.969942][   T42] 3 locks held by kworker/u16:1/73:
[  369.970069][   T42]  #0: ffff88800190a948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0
[  369.970321][   T42]  #1: ffffc900004efda0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0
[  369.970542][   T42]  #2: ffffffffaff6a1d0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xbc/0xb60
[  369.970776][   T42] 1 lock held by modprobe/885:
[  369.970893][   T42]  #0: ffffffffaff6a1d0 (pernet_ops_rwsem){++++}-{3:3}, at: register_pernet_subsys+0x1a/0x50
[  369.971137][   T42] 
[  369.971200][   T42] =============================================
[  369.971200][   T42] 
[  374.615754][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  374.616321][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  374.616321][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  374.616321][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  374.616321][   T73]      fib6_nh_init+0xa22/0x1580
[  374.616321][   T73]      ip6_route_info_create+0xf18/0x17d0
[  374.616321][   T73]      ip6_route_add+0x1c/0x140
[  374.616321][   T73]      inet6_rtm_newroute+0x104/0x110
[  374.616321][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  374.616321][   T73]      netlink_rcv_skb+0x130/0x360
[  374.616321][   T73]      netlink_unicast+0x449/0x710
[  374.616321][   T73]      netlink_sendmsg+0x723/0xbe0
[  374.616321][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  374.616321][   T73]      ___sys_sendmsg+0xee/0x170
[  374.616321][   T73]      __sys_sendmsg+0xcd/0x170
[  374.616321][   T73]      do_syscall_64+0xc6/0x1e0
[  374.616321][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  374.616321][   T73] 
[  374.619293][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  374.619293][   T73]      dst_init+0x84/0x4a0
[  374.619293][   T73]      dst_alloc+0x97/0x150
[  374.619293][   T73]      ip6_dst_alloc+0x23/0x90
[  374.619293][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  374.619293][   T73]      ip6_pol_route+0x56f/0x840
[  374.619293][   T73]      fib6_rule_lookup+0x456/0x630
[  374.619293][   T73]      ip6_route_input+0x59c/0xa50
[  374.619293][   T73]      ipv6_rcv+0x397/0x810
[  374.619293][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  374.619293][   T73]      process_backlog+0x101/0x620
[  374.619293][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  374.619293][   T73]      net_rx_action+0x495/0xbe0
[  374.619293][   T73]      __do_softirq+0x1b5/0x7f6
[  374.619293][   T73] 
[  374.620967][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  374.620967][   T73]      netdev_get_by_index+0x5e/0x80
[  374.620967][   T73]      fib6_nh_init+0x3d8/0x1580
[  374.620967][   T73]      ip6_route_info_create+0xf18/0x17d0
[  374.620967][   T73]      ip6_route_add+0x1c/0x140
[  374.620967][   T73]      addrconf_prefix_route+0x2a6/0x430
[  374.620967][   T73]      inet6_addr_add+0x4f8/0xa40
[  374.620967][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  374.620967][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  374.620967][   T73]      netlink_rcv_skb+0x130/0x360
[  374.620967][   T73]      netlink_unicast+0x449/0x710
[  374.620967][   T73]      netlink_sendmsg+0x723/0xbe0
[  374.620967][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  374.620967][   T73]      ___sys_sendmsg+0xee/0x170
[  374.620967][   T73]      __sys_sendmsg+0xcd/0x170
[  374.620967][   T73]      do_syscall_64+0xc6/0x1e0
[  374.620967][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  374.620967][   T73] 
[  374.622980][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  374.622980][   T73]      netdev_get_by_index+0x5e/0x80
[  374.622980][   T73]      fib6_nh_init+0x3d8/0x1580
[  374.622980][   T73]      ip6_route_info_create+0xf18/0x17d0
[  374.622980][   T73]      addrconf_f6i_alloc+0x315/0x560
[  374.622980][   T73]      ipv6_add_addr+0x411/0x2000
[  374.622980][   T73]      inet6_addr_add+0x30e/0xa40
[  374.622980][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  374.622980][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  374.622980][   T73]      netlink_rcv_skb+0x130/0x360
[  374.622980][   T73]      netlink_unicast+0x449/0x710
[  374.622980][   T73]      netlink_sendmsg+0x723/0xbe0
[  374.622980][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  374.622980][   T73]      ___sys_sendmsg+0xee/0x170
[  374.622980][   T73]      __sys_sendmsg+0xcd/0x170
[  374.622980][   T73]      do_syscall_64+0xc6/0x1e0
[  374.622980][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  374.622980][   T73] 
[  374.625016][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  374.625016][   T73]      netdev_get_by_index+0x5e/0x80
[  374.625016][   T73]      fib6_nh_init+0x3d8/0x1580
[  374.625016][   T73]      ip6_route_info_create+0xf18/0x17d0
[  374.625016][   T73]      ip6_route_add+0x1c/0x140
[  374.625016][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  374.625016][   T73]      addrconf_add_dev+0xe2/0x170
[  374.625016][   T73]      inet6_addr_add+0x12f/0xa40
[  374.625016][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  374.625016][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  374.625016][   T73]      netlink_rcv_skb+0x130/0x360
[  374.625016][   T73]      netlink_unicast+0x449/0x710
[  374.625016][   T73]      netlink_sendmsg+0x723/0xbe0
[  374.625016][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  374.625016][   T73]      ___sys_sendmsg+0xee/0x170
[  374.625016][   T73]      __sys_sendmsg+0xcd/0x170
[  374.625016][   T73]      do_syscall_64+0xc6/0x1e0
[  374.625016][   T73] 
[  374.626979][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  374.626979][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  374.626979][   T73]      ipv6_find_idev+0x102/0x170
[  374.626979][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  374.626979][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  374.626979][   T73]      netlink_rcv_skb+0x130/0x360
[  374.626979][   T73]      netlink_unicast+0x449/0x710
[  374.626979][   T73]      netlink_sendmsg+0x723/0xbe0
[  374.626979][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  374.626979][   T73]      ___sys_sendmsg+0xee/0x170
[  374.626979][   T73]      __sys_sendmsg+0xcd/0x170
[  374.626979][   T73]      do_syscall_64+0xc6/0x1e0
[  374.626979][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  374.626979][   T73] 
[  374.628520][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  374.628520][   T73]      neigh_parms_alloc+0x1e5/0x510
[  374.628520][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  374.628520][   T73]      ipv6_find_idev+0x102/0x170
[  374.628520][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  374.628520][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  374.628520][   T73]      netlink_rcv_skb+0x130/0x360
[  374.628520][   T73]      netlink_unicast+0x449/0x710
[  374.628520][   T73]      netlink_sendmsg+0x723/0xbe0
[  374.628520][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  374.628520][   T73]      ___sys_sendmsg+0xee/0x170
[  374.628520][   T73]      __sys_sendmsg+0xcd/0x170
[  374.628520][   T73]      do_syscall_64+0xc6/0x1e0
[  374.628520][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  374.628520][   T73] 
[  374.630242][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  374.630521][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  374.630521][   T73]      netdev_get_by_index+0x5e/0x80
[  374.630521][   T73]      fib6_nh_init+0x3d8/0x1580
[  374.630521][   T73]      ip6_route_info_create+0xf18/0x17d0
[  374.630521][   T73]      addrconf_f6i_alloc+0x265/0x560
[  374.630521][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  374.630521][   T73]      addrconf_join_anycast+0x1c0/0x220
[  374.630521][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  374.630521][   T73]      addrconf_dad_completed+0x12b/0xe20
[  374.630521][   T73]      addrconf_dad_begin+0x310/0x670
[  374.630521][   T73]      addrconf_dad_work+0x10b/0xab0
[  374.630521][   T73]      process_one_work+0x84d/0x18a0
[  374.630521][   T73]      worker_thread+0x587/0xd30
[  374.630521][   T73]      kthread+0x28a/0x350
[  374.630521][   T73]      ret_from_fork+0x31/0x70
[  374.630521][   T73]      ret_from_fork_asm+0x1a/0x30
[  374.630521][   T73] 
[  374.632447][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  374.632447][   T73]      netdev_get_by_index+0x5e/0x80
[  374.632447][   T73]      fib6_nh_init+0x3d8/0x1580
[  374.632447][   T73]      ip6_route_info_create+0xf18/0x17d0
[  374.632447][   T73]      ip6_route_add+0x1c/0x140
[  374.632447][   T73]      addrconf_prefix_route+0x2a6/0x430
[  374.632447][   T73]      inet6_addr_add+0x4f8/0xa40
[  374.632447][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  374.632447][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  374.632447][   T73]      netlink_rcv_skb+0x130/0x360
[  374.632447][   T73]      netlink_unicast+0x449/0x710
[  374.632447][   T73]      netlink_sendmsg+0x723/0xbe0
[  374.632447][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  374.632447][   T73]      ___sys_sendmsg+0xee/0x170
[  374.632447][   T73]      __sys_sendmsg+0xcd/0x170
[  374.632447][   T73]      do_syscall_64+0xc6/0x1e0
[  374.632447][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  374.632447][   T73] 
[  374.634468][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  374.634468][   T73]      netdev_get_by_index+0x5e/0x80
[  374.634468][   T73]      fib6_nh_init+0x3d8/0x1580
[  374.634468][   T73]      ip6_route_info_create+0xf18/0x17d0
[  374.634468][   T73]      addrconf_f6i_alloc+0x315/0x560
[  374.634468][   T73]      ipv6_add_addr+0x411/0x2000
[  374.634468][   T73]      inet6_addr_add+0x30e/0xa40
[  374.634468][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  374.634468][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  374.634468][   T73]      netlink_rcv_skb+0x130/0x360
[  374.634468][   T73]      netlink_unicast+0x449/0x710
[  374.634468][   T73]      netlink_sendmsg+0x723/0xbe0
[  374.634468][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  374.634468][   T73]      ___sys_sendmsg+0xee/0x170
[  374.634468][   T73]      __sys_sendmsg+0xcd/0x170
[  374.634468][   T73]      do_syscall_64+0xc6/0x1e0
[  374.634468][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  374.634468][   T73] 
[  374.637038][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  374.637038][   T73]      netdev_get_by_index+0x5e/0x80
[  374.637038][   T73]      fib6_nh_init+0x3d8/0x1580
[  374.637038][   T73]      ip6_route_info_create+0xf18/0x17d0
[  374.637038][   T73]      ip6_route_add+0x1c/0x140
[  374.637038][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  374.637038][   T73]      addrconf_add_dev+0xe2/0x170
[  374.637038][   T73]      inet6_addr_add+0x12f/0xa40
[  374.637038][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  374.637038][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  374.637038][   T73]      netlink_rcv_skb+0x130/0x360
[  374.637038][   T73]      netlink_unicast+0x449/0x710
[  374.637038][   T73]      netlink_sendmsg+0x723/0xbe0
[  374.637038][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  374.637038][   T73]      ___sys_sendmsg+0xee/0x170
[  374.637038][   T73]      __sys_sendmsg+0xcd/0x170
[  374.637038][   T73]      do_syscall_64+0xc6/0x1e0
[  374.637038][   T73] 
[  374.640162][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  374.640162][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  374.640162][   T73]      ipv6_find_idev+0x102/0x170
[  374.640162][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  374.640162][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  374.640162][   T73]      netlink_rcv_skb+0x130/0x360
[  374.640162][   T73]      netlink_unicast+0x449/0x710
[  374.640162][   T73]      netlink_sendmsg+0x723/0xbe0
[  374.640162][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  374.640162][   T73]      ___sys_sendmsg+0xee/0x170
[  374.640162][   T73]      __sys_sendmsg+0xcd/0x170
[  374.640162][   T73]      do_syscall_64+0xc6/0x1e0
[  374.640162][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  374.640162][   T73] 
[  374.642605][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  374.642605][   T73]      neigh_parms_alloc+0x1e5/0x510
[  374.642605][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  374.642605][   T73]      ipv6_find_idev+0x102/0x170
[  374.642605][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  374.642605][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  374.642605][   T73]      netlink_rcv_skb+0x130/0x360
[  374.642605][   T73]      netlink_unicast+0x449/0x710
[  374.642605][   T73]      netlink_sendmsg+0x723/0xbe0
[  374.642605][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  374.642605][   T73]      ___sys_sendmsg+0xee/0x170
[  374.642605][   T73]      __sys_sendmsg+0xcd/0x170
[  374.642605][   T73]      do_syscall_64+0xc6/0x1e0
[  374.642605][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  374.642605][   T73] 
[  374.645116][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  374.645603][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  374.645603][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  374.645603][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  374.645603][   T73]      fib6_nh_init+0xa22/0x1580
[  374.645603][   T73]      ip6_route_info_create+0xf18/0x17d0
[  374.645603][   T73]      ip6_route_add+0x1c/0x140
[  374.645603][   T73]      inet6_rtm_newroute+0x104/0x110
[  374.645603][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  374.645603][   T73]      netlink_rcv_skb+0x130/0x360
[  374.645603][   T73]      netlink_unicast+0x449/0x710
[  374.645603][   T73]      netlink_sendmsg+0x723/0xbe0
[  374.645603][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  374.645603][   T73]      ___sys_sendmsg+0xee/0x170
[  374.645603][   T73]      __sys_sendmsg+0xcd/0x170
[  374.645603][   T73]      do_syscall_64+0xc6/0x1e0
[  374.645603][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  374.645603][   T73] 
[  374.648288][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  374.648288][   T73]      dst_init+0x84/0x4a0
[  374.648288][   T73]      dst_alloc+0x97/0x150
[  374.648288][   T73]      ip6_dst_alloc+0x23/0x90
[  374.648288][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  374.648288][   T73]      ip6_pol_route+0x56f/0x840
[  374.648288][   T73]      fib6_rule_lookup+0x456/0x630
[  374.648288][   T73]      ip6_route_input+0x59c/0xa50
[  374.648288][   T73]      ipv6_rcv+0x397/0x810
[  374.648288][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  374.648288][   T73]      process_backlog+0x101/0x620
[  374.648288][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  374.648288][   T73]      net_rx_action+0x495/0xbe0
[  374.648288][   T73]      __do_softirq+0x1b5/0x7f6
[  374.648288][   T73] 
[  374.651298][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  374.651298][   T73]      netdev_get_by_index+0x5e/0x80
[  374.651298][   T73]      fib6_nh_init+0x3d8/0x1580
[  374.651298][   T73]      ip6_route_info_create+0xf18/0x17d0
[  374.651298][   T73]      ip6_route_add+0x1c/0x140
[  374.651298][   T73]      addrconf_prefix_route+0x2a6/0x430
[  374.651298][   T73]      inet6_addr_add+0x4f8/0xa40
[  374.651298][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  374.651298][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  374.651298][   T73]      netlink_rcv_skb+0x130/0x360
[  374.651298][   T73]      netlink_unicast+0x449/0x710
[  374.651298][   T73]      netlink_sendmsg+0x723/0xbe0
[  374.651298][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  374.651298][   T73]      ___sys_sendmsg+0xee/0x170
[  374.651298][   T73]      __sys_sendmsg+0xcd/0x170
[  374.651298][   T73]      do_syscall_64+0xc6/0x1e0
[  374.651298][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  374.651298][   T73] 
[  374.654773][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  374.654773][   T73]      netdev_get_by_index+0x5e/0x80
[  374.654773][   T73]      fib6_nh_init+0x3d8/0x1580
[  374.654773][   T73]      ip6_route_info_create+0xf18/0x17d0
[  374.654773][   T73]      addrconf_f6i_alloc+0x315/0x560
[  374.654773][   T73]      ipv6_add_addr+0x411/0x2000
[  374.654773][   T73]      inet6_addr_add+0x30e/0xa40
[  374.654773][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  374.654773][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  374.654773][   T73]      netlink_rcv_skb+0x130/0x360
[  374.654773][   T73]      netlink_unicast+0x449/0x710
[  374.654773][   T73]      netlink_sendmsg+0x723/0xbe0
[  374.654773][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  374.654773][   T73]      ___sys_sendmsg+0xee/0x170
[  374.654773][   T73]      __sys_sendmsg+0xcd/0x170
[  374.654773][   T73]      do_syscall_64+0xc6/0x1e0
[  374.654773][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  374.654773][   T73] 
[  374.658373][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  374.658373][   T73]      netdev_get_by_index+0x5e/0x80
[  374.658373][   T73]      fib6_nh_init+0x3d8/0x1580
[  374.658373][   T73]      ip6_route_info_create+0xf18/0x17d0
[  374.658373][   T73]      ip6_route_add+0x1c/0x140
[  374.658373][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  374.658373][   T73]      addrconf_add_dev+0xe2/0x170
[  374.658373][   T73]      inet6_addr_add+0x12f/0xa40
[  374.658373][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  374.658373][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  374.658373][   T73]      netlink_rcv_skb+0x130/0x360
[  374.658373][   T73]      netlink_unicast+0x449/0x710
[  374.658373][   T73]      netlink_sendmsg+0x723/0xbe0
[  374.658373][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  374.658373][   T73]      ___sys_sendmsg+0xee/0x170
[  374.658373][   T73]      __sys_sendmsg+0xcd/0x170
[  374.658373][   T73]      do_syscall_64+0xc6/0x1e0
[  374.658373][   T73] 
[  374.660576][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  374.660576][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  374.660576][   T73]      ipv6_find_idev+0x102/0x170
[  374.660576][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  374.660576][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  374.660576][   T73]      netlink_rcv_skb+0x130/0x360
[  374.660576][   T73]      netlink_unicast+0x449/0x710
[  374.660576][   T73]      netlink_sendmsg+0x723/0xbe0
[  374.660576][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  374.660576][   T73]      ___sys_sendmsg+0xee/0x170
[  374.660576][   T73]      __sys_sendmsg+0xcd/0x170
[  374.660576][   T73]      do_syscall_64+0xc6/0x1e0
[  374.660576][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  374.660576][   T73] 
[  374.662305][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  374.662305][   T73]      neigh_parms_alloc+0x1e5/0x510
[  374.662305][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  374.662305][   T73]      ipv6_find_idev+0x102/0x170
[  374.662305][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  374.662305][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  374.662305][   T73]      netlink_rcv_skb+0x130/0x360
[  374.662305][   T73]      netlink_unicast+0x449/0x710
[  374.662305][   T73]      netlink_sendmsg+0x723/0xbe0
[  374.662305][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  374.662305][   T73]      ___sys_sendmsg+0xee/0x170
[  374.662305][   T73]      __sys_sendmsg+0xcd/0x170
[  374.662305][   T73]      do_syscall_64+0xc6/0x1e0
[  374.662305][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  374.662305][   T73] 
[  374.664201][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  374.664540][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  374.664540][   T73]      netdev_get_by_index+0x5e/0x80
[  374.664540][   T73]      fib6_nh_init+0x3d8/0x1580
[  374.664540][   T73]      ip6_route_info_create+0xf18/0x17d0
[  374.664540][   T73]      addrconf_f6i_alloc+0x265/0x560
[  374.664540][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  374.664540][   T73]      addrconf_join_anycast+0x1c0/0x220
[  374.664540][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  374.664540][   T73]      addrconf_dad_completed+0x12b/0xe20
[  374.664540][   T73]      addrconf_dad_begin+0x310/0x670
[  374.664540][   T73]      addrconf_dad_work+0x10b/0xab0
[  374.664540][   T73]      process_one_work+0x84d/0x18a0
[  374.664540][   T73]      worker_thread+0x587/0xd30
[  374.664540][   T73]      kthread+0x28a/0x350
[  374.664540][   T73]      ret_from_fork+0x31/0x70
[  374.664540][   T73]      ret_from_fork_asm+0x1a/0x30
[  374.664540][   T73] 
[  374.666642][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  374.666642][   T73]      netdev_get_by_index+0x5e/0x80
[  374.666642][   T73]      fib6_nh_init+0x3d8/0x1580
[  374.666642][   T73]      ip6_route_info_create+0xf18/0x17d0
[  374.666642][   T73]      ip6_route_add+0x1c/0x140
[  374.666642][   T73]      addrconf_prefix_route+0x2a6/0x430
[  374.666642][   T73]      inet6_addr_add+0x4f8/0xa40
[  374.666642][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  374.666642][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  374.666642][   T73]      netlink_rcv_skb+0x130/0x360
[  374.666642][   T73]      netlink_unicast+0x449/0x710
[  374.666642][   T73]      netlink_sendmsg+0x723/0xbe0
[  374.666642][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  374.666642][   T73]      ___sys_sendmsg+0xee/0x170
[  374.666642][   T73]      __sys_sendmsg+0xcd/0x170
[  374.666642][   T73]      do_syscall_64+0xc6/0x1e0
[  374.666642][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  374.666642][   T73] 
[  374.668952][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  374.668952][   T73]      netdev_get_by_index+0x5e/0x80
[  374.668952][   T73]      fib6_nh_init+0x3d8/0x1580
[  374.668952][   T73]      ip6_route_info_create+0xf18/0x17d0
[  374.668952][   T73]      addrconf_f6i_alloc+0x315/0x560
[  374.668952][   T73]      ipv6_add_addr+0x411/0x2000
[  374.668952][   T73]      inet6_addr_add+0x30e/0xa40
[  374.668952][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  374.668952][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  374.668952][   T73]      netlink_rcv_skb+0x130/0x360
[  374.668952][   T73]      netlink_unicast+0x449/0x710
[  374.668952][   T73]      netlink_sendmsg+0x723/0xbe0
[  374.668952][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  374.668952][   T73]      ___sys_sendmsg+0xee/0x170
[  374.668952][   T73]      __sys_sendmsg+0xcd/0x170
[  374.668952][   T73]      do_syscall_64+0xc6/0x1e0
[  374.668952][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  374.668952][   T73] 
[  374.671192][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  374.671192][   T73]      netdev_get_by_index+0x5e/0x80
[  374.671192][   T73]      fib6_nh_init+0x3d8/0x1580
[  374.671192][   T73]      ip6_route_info_create+0xf18/0x17d0
[  374.671192][   T73]      ip6_route_add+0x1c/0x140
[  374.671192][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  374.671192][   T73]      addrconf_add_dev+0xe2/0x170
[  374.671192][   T73]      inet6_addr_add+0x12f/0xa40
[  374.671192][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  374.671192][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  374.671192][   T73]      netlink_rcv_skb+0x130/0x360
[  374.671192][   T73]      netlink_unicast+0x449/0x710
[  374.671192][   T73]      netlink_sendmsg+0x723/0xbe0
[  374.671192][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  374.671192][   T73]      ___sys_sendmsg+0xee/0x170
[  374.671192][   T73]      __sys_sendmsg+0xcd/0x170
[  374.671192][   T73]      do_syscall_64+0xc6/0x1e0
[  374.671192][   T73] 
[  374.674152][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  374.674152][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  374.674152][   T73]      ipv6_find_idev+0x102/0x170
[  374.674152][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  374.674152][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  374.674152][   T73]      netlink_rcv_skb+0x130/0x360
[  374.674152][   T73]      netlink_unicast+0x449/0x710
[  374.674152][   T73]      netlink_sendmsg+0x723/0xbe0
[  374.674152][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  374.674152][   T73]      ___sys_sendmsg+0xee/0x170
[  374.674152][   T73]      __sys_sendmsg+0xcd/0x170
[  374.674152][   T73]      do_syscall_64+0xc6/0x1e0
[  374.674152][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  374.674152][   T73] 
[  374.677067][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  374.677067][   T73]      neigh_parms_alloc+0x1e5/0x510
[  374.677067][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  374.677067][   T73]      ipv6_find_idev+0x102/0x170
[  374.677067][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  374.677067][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  374.677067][   T73]      netlink_rcv_skb+0x130/0x360
[  374.677067][   T73]      netlink_unicast+0x449/0x710
[  374.677067][   T73]      netlink_sendmsg+0x723/0xbe0
[  374.677067][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  374.677067][   T73]      ___sys_sendmsg+0xee/0x170
[  374.677067][   T73]      __sys_sendmsg+0xcd/0x170
[  374.677067][   T73]      do_syscall_64+0xc6/0x1e0
[  374.677067][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  374.677067][   T73] 
[  384.919742][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  384.920141][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  384.920141][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  384.920141][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  384.920141][   T73]      fib6_nh_init+0xa22/0x1580
[  384.920141][   T73]      ip6_route_info_create+0xf18/0x17d0
[  384.920141][   T73]      ip6_route_add+0x1c/0x140
[  384.920141][   T73]      inet6_rtm_newroute+0x104/0x110
[  384.920141][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  384.920141][   T73]      netlink_rcv_skb+0x130/0x360
[  384.920141][   T73]      netlink_unicast+0x449/0x710
[  384.920141][   T73]      netlink_sendmsg+0x723/0xbe0
[  384.920141][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  384.920141][   T73]      ___sys_sendmsg+0xee/0x170
[  384.920141][   T73]      __sys_sendmsg+0xcd/0x170
[  384.920141][   T73]      do_syscall_64+0xc6/0x1e0
[  384.920141][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  384.920141][   T73] 
[  384.922248][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  384.922248][   T73]      dst_init+0x84/0x4a0
[  384.922248][   T73]      dst_alloc+0x97/0x150
[  384.922248][   T73]      ip6_dst_alloc+0x23/0x90
[  384.922248][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  384.922248][   T73]      ip6_pol_route+0x56f/0x840
[  384.922248][   T73]      fib6_rule_lookup+0x456/0x630
[  384.922248][   T73]      ip6_route_input+0x59c/0xa50
[  384.922248][   T73]      ipv6_rcv+0x397/0x810
[  384.922248][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  384.922248][   T73]      process_backlog+0x101/0x620
[  384.922248][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  384.922248][   T73]      net_rx_action+0x495/0xbe0
[  384.922248][   T73]      __do_softirq+0x1b5/0x7f6
[  384.922248][   T73] 
[  384.924495][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  384.924495][   T73]      netdev_get_by_index+0x5e/0x80
[  384.924495][   T73]      fib6_nh_init+0x3d8/0x1580
[  384.924495][   T73]      ip6_route_info_create+0xf18/0x17d0
[  384.924495][   T73]      ip6_route_add+0x1c/0x140
[  384.924495][   T73]      addrconf_prefix_route+0x2a6/0x430
[  384.924495][   T73]      inet6_addr_add+0x4f8/0xa40
[  384.924495][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  384.924495][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  384.924495][   T73]      netlink_rcv_skb+0x130/0x360
[  384.924495][   T73]      netlink_unicast+0x449/0x710
[  384.924495][   T73]      netlink_sendmsg+0x723/0xbe0
[  384.924495][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  384.924495][   T73]      ___sys_sendmsg+0xee/0x170
[  384.924495][   T73]      __sys_sendmsg+0xcd/0x170
[  384.924495][   T73]      do_syscall_64+0xc6/0x1e0
[  384.924495][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  384.924495][   T73] 
[  384.927572][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  384.927572][   T73]      netdev_get_by_index+0x5e/0x80
[  384.927572][   T73]      fib6_nh_init+0x3d8/0x1580
[  384.927572][   T73]      ip6_route_info_create+0xf18/0x17d0
[  384.927572][   T73]      addrconf_f6i_alloc+0x315/0x560
[  384.927572][   T73]      ipv6_add_addr+0x411/0x2000
[  384.927572][   T73]      inet6_addr_add+0x30e/0xa40
[  384.927572][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  384.927572][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  384.927572][   T73]      netlink_rcv_skb+0x130/0x360
[  384.927572][   T73]      netlink_unicast+0x449/0x710
[  384.927572][   T73]      netlink_sendmsg+0x723/0xbe0
[  384.927572][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  384.927572][   T73]      ___sys_sendmsg+0xee/0x170
[  384.927572][   T73]      __sys_sendmsg+0xcd/0x170
[  384.927572][   T73]      do_syscall_64+0xc6/0x1e0
[  384.927572][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  384.927572][   T73] 
[  384.930661][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  384.930661][   T73]      netdev_get_by_index+0x5e/0x80
[  384.930661][   T73]      fib6_nh_init+0x3d8/0x1580
[  384.930661][   T73]      ip6_route_info_create+0xf18/0x17d0
[  384.930661][   T73]      ip6_route_add+0x1c/0x140
[  384.930661][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  384.930661][   T73]      addrconf_add_dev+0xe2/0x170
[  384.930661][   T73]      inet6_addr_add+0x12f/0xa40
[  384.930661][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  384.930661][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  384.930661][   T73]      netlink_rcv_skb+0x130/0x360
[  384.930661][   T73]      netlink_unicast+0x449/0x710
[  384.930661][   T73]      netlink_sendmsg+0x723/0xbe0
[  384.930661][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  384.930661][   T73]      ___sys_sendmsg+0xee/0x170
[  384.930661][   T73]      __sys_sendmsg+0xcd/0x170
[  384.930661][   T73]      do_syscall_64+0xc6/0x1e0
[  384.930661][   T73] 
[  384.933700][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  384.933700][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  384.933700][   T73]      ipv6_find_idev+0x102/0x170
[  384.933700][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  384.933700][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  384.933700][   T73]      netlink_rcv_skb+0x130/0x360
[  384.933700][   T73]      netlink_unicast+0x449/0x710
[  384.933700][   T73]      netlink_sendmsg+0x723/0xbe0
[  384.933700][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  384.933700][   T73]      ___sys_sendmsg+0xee/0x170
[  384.933700][   T73]      __sys_sendmsg+0xcd/0x170
[  384.933700][   T73]      do_syscall_64+0xc6/0x1e0
[  384.933700][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  384.933700][   T73] 
[  384.935814][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  384.935814][   T73]      neigh_parms_alloc+0x1e5/0x510
[  384.935814][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  384.935814][   T73]      ipv6_find_idev+0x102/0x170
[  384.935814][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  384.935814][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  384.935814][   T73]      netlink_rcv_skb+0x130/0x360
[  384.935814][   T73]      netlink_unicast+0x449/0x710
[  384.935814][   T73]      netlink_sendmsg+0x723/0xbe0
[  384.935814][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  384.935814][   T73]      ___sys_sendmsg+0xee/0x170
[  384.935814][   T73]      __sys_sendmsg+0xcd/0x170
[  384.935814][   T73]      do_syscall_64+0xc6/0x1e0
[  384.935814][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  384.935814][   T73] 
[  384.937672][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  384.937965][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  384.937965][   T73]      netdev_get_by_index+0x5e/0x80
[  384.937965][   T73]      fib6_nh_init+0x3d8/0x1580
[  384.937965][   T73]      ip6_route_info_create+0xf18/0x17d0
[  384.937965][   T73]      addrconf_f6i_alloc+0x265/0x560
[  384.937965][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  384.937965][   T73]      addrconf_join_anycast+0x1c0/0x220
[  384.937965][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  384.937965][   T73]      addrconf_dad_completed+0x12b/0xe20
[  384.937965][   T73]      addrconf_dad_begin+0x310/0x670
[  384.937965][   T73]      addrconf_dad_work+0x10b/0xab0
[  384.937965][   T73]      process_one_work+0x84d/0x18a0
[  384.937965][   T73]      worker_thread+0x587/0xd30
[  384.937965][   T73]      kthread+0x28a/0x350
[  384.937965][   T73]      ret_from_fork+0x31/0x70
[  384.937965][   T73]      ret_from_fork_asm+0x1a/0x30
[  384.937965][   T73] 
[  384.939979][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  384.939979][   T73]      netdev_get_by_index+0x5e/0x80
[  384.939979][   T73]      fib6_nh_init+0x3d8/0x1580
[  384.939979][   T73]      ip6_route_info_create+0xf18/0x17d0
[  384.939979][   T73]      ip6_route_add+0x1c/0x140
[  384.939979][   T73]      addrconf_prefix_route+0x2a6/0x430
[  384.939979][   T73]      inet6_addr_add+0x4f8/0xa40
[  384.939979][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  384.939979][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  384.939979][   T73]      netlink_rcv_skb+0x130/0x360
[  384.939979][   T73]      netlink_unicast+0x449/0x710
[  384.939979][   T73]      netlink_sendmsg+0x723/0xbe0
[  384.939979][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  384.939979][   T73]      ___sys_sendmsg+0xee/0x170
[  384.939979][   T73]      __sys_sendmsg+0xcd/0x170
[  384.939979][   T73]      do_syscall_64+0xc6/0x1e0
[  384.939979][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  384.939979][   T73] 
[  384.942034][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  384.942034][   T73]      netdev_get_by_index+0x5e/0x80
[  384.942034][   T73]      fib6_nh_init+0x3d8/0x1580
[  384.942034][   T73]      ip6_route_info_create+0xf18/0x17d0
[  384.942034][   T73]      addrconf_f6i_alloc+0x315/0x560
[  384.942034][   T73]      ipv6_add_addr+0x411/0x2000
[  384.942034][   T73]      inet6_addr_add+0x30e/0xa40
[  384.942034][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  384.942034][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  384.942034][   T73]      netlink_rcv_skb+0x130/0x360
[  384.942034][   T73]      netlink_unicast+0x449/0x710
[  384.942034][   T73]      netlink_sendmsg+0x723/0xbe0
[  384.942034][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  384.942034][   T73]      ___sys_sendmsg+0xee/0x170
[  384.942034][   T73]      __sys_sendmsg+0xcd/0x170
[  384.942034][   T73]      do_syscall_64+0xc6/0x1e0
[  384.942034][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  384.942034][   T73] 
[  384.944089][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  384.944089][   T73]      netdev_get_by_index+0x5e/0x80
[  384.944089][   T73]      fib6_nh_init+0x3d8/0x1580
[  384.944089][   T73]      ip6_route_info_create+0xf18/0x17d0
[  384.944089][   T73]      ip6_route_add+0x1c/0x140
[  384.944089][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  384.944089][   T73]      addrconf_add_dev+0xe2/0x170
[  384.944089][   T73]      inet6_addr_add+0x12f/0xa40
[  384.944089][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  384.944089][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  384.944089][   T73]      netlink_rcv_skb+0x130/0x360
[  384.944089][   T73]      netlink_unicast+0x449/0x710
[  384.944089][   T73]      netlink_sendmsg+0x723/0xbe0
[  384.944089][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  384.944089][   T73]      ___sys_sendmsg+0xee/0x170
[  384.944089][   T73]      __sys_sendmsg+0xcd/0x170
[  384.944089][   T73]      do_syscall_64+0xc6/0x1e0
[  384.944089][   T73] 
[  384.946129][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  384.946129][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  384.946129][   T73]      ipv6_find_idev+0x102/0x170
[  384.946129][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  384.946129][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  384.946129][   T73]      netlink_rcv_skb+0x130/0x360
[  384.946129][   T73]      netlink_unicast+0x449/0x710
[  384.946129][   T73]      netlink_sendmsg+0x723/0xbe0
[  384.946129][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  384.946129][   T73]      ___sys_sendmsg+0xee/0x170
[  384.946129][   T73]      __sys_sendmsg+0xcd/0x170
[  384.946129][   T73]      do_syscall_64+0xc6/0x1e0
[  384.946129][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  384.946129][   T73] 
[  384.947702][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  384.947702][   T73]      neigh_parms_alloc+0x1e5/0x510
[  384.947702][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  384.947702][   T73]      ipv6_find_idev+0x102/0x170
[  384.947702][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  384.947702][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  384.947702][   T73]      netlink_rcv_skb+0x130/0x360
[  384.947702][   T73]      netlink_unicast+0x449/0x710
[  384.947702][   T73]      netlink_sendmsg+0x723/0xbe0
[  384.947702][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  384.947702][   T73]      ___sys_sendmsg+0xee/0x170
[  384.947702][   T73]      __sys_sendmsg+0xcd/0x170
[  384.947702][   T73]      do_syscall_64+0xc6/0x1e0
[  384.947702][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  384.947702][   T73] 
[  384.949445][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  384.949736][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  384.949736][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  384.949736][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  384.949736][   T73]      fib6_nh_init+0xa22/0x1580
[  384.949736][   T73]      ip6_route_info_create+0xf18/0x17d0
[  384.949736][   T73]      ip6_route_add+0x1c/0x140
[  384.949736][   T73]      inet6_rtm_newroute+0x104/0x110
[  384.949736][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  384.949736][   T73]      netlink_rcv_skb+0x130/0x360
[  384.949736][   T73]      netlink_unicast+0x449/0x710
[  384.949736][   T73]      netlink_sendmsg+0x723/0xbe0
[  384.949736][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  384.949736][   T73]      ___sys_sendmsg+0xee/0x170
[  384.949736][   T73]      __sys_sendmsg+0xcd/0x170
[  384.949736][   T73]      do_syscall_64+0xc6/0x1e0
[  384.949736][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  384.949736][   T73] 
[  384.951775][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  384.951775][   T73]      dst_init+0x84/0x4a0
[  384.951775][   T73]      dst_alloc+0x97/0x150
[  384.951775][   T73]      ip6_dst_alloc+0x23/0x90
[  384.951775][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  384.951775][   T73]      ip6_pol_route+0x56f/0x840
[  384.951775][   T73]      fib6_rule_lookup+0x456/0x630
[  384.951775][   T73]      ip6_route_input+0x59c/0xa50
[  384.951775][   T73]      ipv6_rcv+0x397/0x810
[  384.951775][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  384.951775][   T73]      process_backlog+0x101/0x620
[  384.951775][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  384.951775][   T73]      net_rx_action+0x495/0xbe0
[  384.951775][   T73]      __do_softirq+0x1b5/0x7f6
[  384.951775][   T73] 
[  384.953804][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  384.953804][   T73]      netdev_get_by_index+0x5e/0x80
[  384.953804][   T73]      fib6_nh_init+0x3d8/0x1580
[  384.953804][   T73]      ip6_route_info_create+0xf18/0x17d0
[  384.953804][   T73]      ip6_route_add+0x1c/0x140
[  384.953804][   T73]      addrconf_prefix_route+0x2a6/0x430
[  384.953804][   T73]      inet6_addr_add+0x4f8/0xa40
[  384.953804][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  384.953804][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  384.953804][   T73]      netlink_rcv_skb+0x130/0x360
[  384.953804][   T73]      netlink_unicast+0x449/0x710
[  384.953804][   T73]      netlink_sendmsg+0x723/0xbe0
[  384.953804][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  384.953804][   T73]      ___sys_sendmsg+0xee/0x170
[  384.953804][   T73]      __sys_sendmsg+0xcd/0x170
[  384.953804][   T73]      do_syscall_64+0xc6/0x1e0
[  384.953804][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  384.953804][   T73] 
[  384.956169][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  384.956169][   T73]      netdev_get_by_index+0x5e/0x80
[  384.956169][   T73]      fib6_nh_init+0x3d8/0x1580
[  384.956169][   T73]      ip6_route_info_create+0xf18/0x17d0
[  384.956169][   T73]      addrconf_f6i_alloc+0x315/0x560
[  384.956169][   T73]      ipv6_add_addr+0x411/0x2000
[  384.956169][   T73]      inet6_addr_add+0x30e/0xa40
[  384.956169][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  384.956169][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  384.956169][   T73]      netlink_rcv_skb+0x130/0x360
[  384.956169][   T73]      netlink_unicast+0x449/0x710
[  384.956169][   T73]      netlink_sendmsg+0x723/0xbe0
[  384.956169][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  384.956169][   T73]      ___sys_sendmsg+0xee/0x170
[  384.956169][   T73]      __sys_sendmsg+0xcd/0x170
[  384.956169][   T73]      do_syscall_64+0xc6/0x1e0
[  384.956169][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  384.956169][   T73] 
[  384.958479][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  384.958479][   T73]      netdev_get_by_index+0x5e/0x80
[  384.958479][   T73]      fib6_nh_init+0x3d8/0x1580
[  384.958479][   T73]      ip6_route_info_create+0xf18/0x17d0
[  384.958479][   T73]      ip6_route_add+0x1c/0x140
[  384.958479][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  384.958479][   T73]      addrconf_add_dev+0xe2/0x170
[  384.958479][   T73]      inet6_addr_add+0x12f/0xa40
[  384.958479][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  384.958479][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  384.958479][   T73]      netlink_rcv_skb+0x130/0x360
[  384.958479][   T73]      netlink_unicast+0x449/0x710
[  384.958479][   T73]      netlink_sendmsg+0x723/0xbe0
[  384.958479][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  384.958479][   T73]      ___sys_sendmsg+0xee/0x170
[  384.958479][   T73]      __sys_sendmsg+0xcd/0x170
[  384.958479][   T73]      do_syscall_64+0xc6/0x1e0
[  384.958479][   T73] 
[  384.960695][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  384.960695][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  384.960695][   T73]      ipv6_find_idev+0x102/0x170
[  384.960695][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  384.960695][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  384.960695][   T73]      netlink_rcv_skb+0x130/0x360
[  384.960695][   T73]      netlink_unicast+0x449/0x710
[  384.960695][   T73]      netlink_sendmsg+0x723/0xbe0
[  384.960695][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  384.960695][   T73]      ___sys_sendmsg+0xee/0x170
[  384.960695][   T73]      __sys_sendmsg+0xcd/0x170
[  384.960695][   T73]      do_syscall_64+0xc6/0x1e0
[  384.960695][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  384.960695][   T73] 
[  384.962352][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  384.962352][   T73]      neigh_parms_alloc+0x1e5/0x510
[  384.962352][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  384.962352][   T73]      ipv6_find_idev+0x102/0x170
[  384.962352][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  384.962352][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  384.962352][   T73]      netlink_rcv_skb+0x130/0x360
[  384.962352][   T73]      netlink_unicast+0x449/0x710
[  384.962352][   T73]      netlink_sendmsg+0x723/0xbe0
[  384.962352][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  384.962352][   T73]      ___sys_sendmsg+0xee/0x170
[  384.962352][   T73]      __sys_sendmsg+0xcd/0x170
[  384.962352][   T73]      do_syscall_64+0xc6/0x1e0
[  384.962352][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  384.962352][   T73] 
[  384.964352][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  384.964643][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  384.964643][   T73]      netdev_get_by_index+0x5e/0x80
[  384.964643][   T73]      fib6_nh_init+0x3d8/0x1580
[  384.964643][   T73]      ip6_route_info_create+0xf18/0x17d0
[  384.964643][   T73]      addrconf_f6i_alloc+0x265/0x560
[  384.964643][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  384.964643][   T73]      addrconf_join_anycast+0x1c0/0x220
[  384.964643][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  384.964643][   T73]      addrconf_dad_completed+0x12b/0xe20
[  384.964643][   T73]      addrconf_dad_begin+0x310/0x670
[  384.964643][   T73]      addrconf_dad_work+0x10b/0xab0
[  384.964643][   T73]      process_one_work+0x84d/0x18a0
[  384.964643][   T73]      worker_thread+0x587/0xd30
[  384.964643][   T73]      kthread+0x28a/0x350
[  384.964643][   T73]      ret_from_fork+0x31/0x70
[  384.964643][   T73]      ret_from_fork_asm+0x1a/0x30
[  384.964643][   T73] 
[  384.966743][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  384.966743][   T73]      netdev_get_by_index+0x5e/0x80
[  384.966743][   T73]      fib6_nh_init+0x3d8/0x1580
[  384.966743][   T73]      ip6_route_info_create+0xf18/0x17d0
[  384.966743][   T73]      ip6_route_add+0x1c/0x140
[  384.966743][   T73]      addrconf_prefix_route+0x2a6/0x430
[  384.966743][   T73]      inet6_addr_add+0x4f8/0xa40
[  384.966743][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  384.966743][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  384.966743][   T73]      netlink_rcv_skb+0x130/0x360
[  384.966743][   T73]      netlink_unicast+0x449/0x710
[  384.966743][   T73]      netlink_sendmsg+0x723/0xbe0
[  384.966743][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  384.966743][   T73]      ___sys_sendmsg+0xee/0x170
[  384.966743][   T73]      __sys_sendmsg+0xcd/0x170
[  384.966743][   T73]      do_syscall_64+0xc6/0x1e0
[  384.966743][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  384.966743][   T73] 
[  384.969105][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  384.969105][   T73]      netdev_get_by_index+0x5e/0x80
[  384.969105][   T73]      fib6_nh_init+0x3d8/0x1580
[  384.969105][   T73]      ip6_route_info_create+0xf18/0x17d0
[  384.969105][   T73]      addrconf_f6i_alloc+0x315/0x560
[  384.969105][   T73]      ipv6_add_addr+0x411/0x2000
[  384.969105][   T73]      inet6_addr_add+0x30e/0xa40
[  384.969105][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  384.969105][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  384.969105][   T73]      netlink_rcv_skb+0x130/0x360
[  384.969105][   T73]      netlink_unicast+0x449/0x710
[  384.969105][   T73]      netlink_sendmsg+0x723/0xbe0
[  384.969105][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  384.969105][   T73]      ___sys_sendmsg+0xee/0x170
[  384.969105][   T73]      __sys_sendmsg+0xcd/0x170
[  384.969105][   T73]      do_syscall_64+0xc6/0x1e0
[  384.969105][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  384.969105][   T73] 
[  384.971677][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  384.971677][   T73]      netdev_get_by_index+0x5e/0x80
[  384.971677][   T73]      fib6_nh_init+0x3d8/0x1580
[  384.971677][   T73]      ip6_route_info_create+0xf18/0x17d0
[  384.971677][   T73]      ip6_route_add+0x1c/0x140
[  384.971677][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  384.971677][   T73]      addrconf_add_dev+0xe2/0x170
[  384.971677][   T73]      inet6_addr_add+0x12f/0xa40
[  384.971677][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  384.971677][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  384.971677][   T73]      netlink_rcv_skb+0x130/0x360
[  384.971677][   T73]      netlink_unicast+0x449/0x710
[  384.971677][   T73]      netlink_sendmsg+0x723/0xbe0
[  384.971677][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  384.971677][   T73]      ___sys_sendmsg+0xee/0x170
[  384.971677][   T73]      __sys_sendmsg+0xcd/0x170
[  384.971677][   T73]      do_syscall_64+0xc6/0x1e0
[  384.971677][   T73] 
[  384.974085][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  384.974085][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  384.974085][   T73]      ipv6_find_idev+0x102/0x170
[  384.974085][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  384.974085][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  384.974085][   T73]      netlink_rcv_skb+0x130/0x360
[  384.974085][   T73]      netlink_unicast+0x449/0x710
[  384.974085][   T73]      netlink_sendmsg+0x723/0xbe0
[  384.974085][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  384.974085][   T73]      ___sys_sendmsg+0xee/0x170
[  384.974085][   T73]      __sys_sendmsg+0xcd/0x170
[  384.974085][   T73]      do_syscall_64+0xc6/0x1e0
[  384.974085][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  384.974085][   T73] 
[  384.975821][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  384.975821][   T73]      neigh_parms_alloc+0x1e5/0x510
[  384.975821][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  384.975821][   T73]      ipv6_find_idev+0x102/0x170
[  384.975821][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  384.975821][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  384.975821][   T73]      netlink_rcv_skb+0x130/0x360
[  384.975821][   T73]      netlink_unicast+0x449/0x710
[  384.975821][   T73]      netlink_sendmsg+0x723/0xbe0
[  384.975821][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  384.975821][   T73]      ___sys_sendmsg+0xee/0x170
[  384.975821][   T73]      __sys_sendmsg+0xcd/0x170
[  384.975821][   T73]      do_syscall_64+0xc6/0x1e0
[  384.975821][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  384.975821][   T73] 
[  395.015765][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  395.016312][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  395.016312][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  395.016312][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  395.016312][   T73]      fib6_nh_init+0xa22/0x1580
[  395.016312][   T73]      ip6_route_info_create+0xf18/0x17d0
[  395.016312][   T73]      ip6_route_add+0x1c/0x140
[  395.016312][   T73]      inet6_rtm_newroute+0x104/0x110
[  395.016312][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  395.016312][   T73]      netlink_rcv_skb+0x130/0x360
[  395.016312][   T73]      netlink_unicast+0x449/0x710
[  395.016312][   T73]      netlink_sendmsg+0x723/0xbe0
[  395.016312][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  395.016312][   T73]      ___sys_sendmsg+0xee/0x170
[  395.016312][   T73]      __sys_sendmsg+0xcd/0x170
[  395.016312][   T73]      do_syscall_64+0xc6/0x1e0
[  395.016312][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  395.016312][   T73] 
[  395.018771][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  395.018771][   T73]      dst_init+0x84/0x4a0
[  395.018771][   T73]      dst_alloc+0x97/0x150
[  395.018771][   T73]      ip6_dst_alloc+0x23/0x90
[  395.018771][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  395.018771][   T73]      ip6_pol_route+0x56f/0x840
[  395.018771][   T73]      fib6_rule_lookup+0x456/0x630
[  395.018771][   T73]      ip6_route_input+0x59c/0xa50
[  395.018771][   T73]      ipv6_rcv+0x397/0x810
[  395.018771][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  395.018771][   T73]      process_backlog+0x101/0x620
[  395.018771][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  395.018771][   T73]      net_rx_action+0x495/0xbe0
[  395.018771][   T73]      __do_softirq+0x1b5/0x7f6
[  395.018771][   T73] 
[  395.020954][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  395.020954][   T73]      netdev_get_by_index+0x5e/0x80
[  395.020954][   T73]      fib6_nh_init+0x3d8/0x1580
[  395.020954][   T73]      ip6_route_info_create+0xf18/0x17d0
[  395.020954][   T73]      ip6_route_add+0x1c/0x140
[  395.020954][   T73]      addrconf_prefix_route+0x2a6/0x430
[  395.020954][   T73]      inet6_addr_add+0x4f8/0xa40
[  395.020954][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  395.020954][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  395.020954][   T73]      netlink_rcv_skb+0x130/0x360
[  395.020954][   T73]      netlink_unicast+0x449/0x710
[  395.020954][   T73]      netlink_sendmsg+0x723/0xbe0
[  395.020954][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  395.020954][   T73]      ___sys_sendmsg+0xee/0x170
[  395.020954][   T73]      __sys_sendmsg+0xcd/0x170
[  395.020954][   T73]      do_syscall_64+0xc6/0x1e0
[  395.020954][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  395.020954][   T73] 
[  395.023569][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  395.023569][   T73]      netdev_get_by_index+0x5e/0x80
[  395.023569][   T73]      fib6_nh_init+0x3d8/0x1580
[  395.023569][   T73]      ip6_route_info_create+0xf18/0x17d0
[  395.023569][   T73]      addrconf_f6i_alloc+0x315/0x560
[  395.023569][   T73]      ipv6_add_addr+0x411/0x2000
[  395.023569][   T73]      inet6_addr_add+0x30e/0xa40
[  395.023569][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  395.023569][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  395.023569][   T73]      netlink_rcv_skb+0x130/0x360
[  395.023569][   T73]      netlink_unicast+0x449/0x710
[  395.023569][   T73]      netlink_sendmsg+0x723/0xbe0
[  395.023569][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  395.023569][   T73]      ___sys_sendmsg+0xee/0x170
[  395.023569][   T73]      __sys_sendmsg+0xcd/0x170
[  395.023569][   T73]      do_syscall_64+0xc6/0x1e0
[  395.023569][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  395.023569][   T73] 
[  395.025989][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  395.025989][   T73]      netdev_get_by_index+0x5e/0x80
[  395.025989][   T73]      fib6_nh_init+0x3d8/0x1580
[  395.025989][   T73]      ip6_route_info_create+0xf18/0x17d0
[  395.025989][   T73]      ip6_route_add+0x1c/0x140
[  395.025989][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  395.025989][   T73]      addrconf_add_dev+0xe2/0x170
[  395.025989][   T73]      inet6_addr_add+0x12f/0xa40
[  395.025989][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  395.025989][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  395.025989][   T73]      netlink_rcv_skb+0x130/0x360
[  395.025989][   T73]      netlink_unicast+0x449/0x710
[  395.025989][   T73]      netlink_sendmsg+0x723/0xbe0
[  395.025989][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  395.025989][   T73]      ___sys_sendmsg+0xee/0x170
[  395.025989][   T73]      __sys_sendmsg+0xcd/0x170
[  395.025989][   T73]      do_syscall_64+0xc6/0x1e0
[  395.025989][   T73] 
[  395.028195][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  395.028195][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  395.028195][   T73]      ipv6_find_idev+0x102/0x170
[  395.028195][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  395.028195][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  395.028195][   T73]      netlink_rcv_skb+0x130/0x360
[  395.028195][   T73]      netlink_unicast+0x449/0x710
[  395.028195][   T73]      netlink_sendmsg+0x723/0xbe0
[  395.028195][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  395.028195][   T73]      ___sys_sendmsg+0xee/0x170
[  395.028195][   T73]      __sys_sendmsg+0xcd/0x170
[  395.028195][   T73]      do_syscall_64+0xc6/0x1e0
[  395.028195][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  395.028195][   T73] 
[  395.029916][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  395.029916][   T73]      neigh_parms_alloc+0x1e5/0x510
[  395.029916][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  395.029916][   T73]      ipv6_find_idev+0x102/0x170
[  395.029916][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  395.029916][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  395.029916][   T73]      netlink_rcv_skb+0x130/0x360
[  395.029916][   T73]      netlink_unicast+0x449/0x710
[  395.029916][   T73]      netlink_sendmsg+0x723/0xbe0
[  395.029916][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  395.029916][   T73]      ___sys_sendmsg+0xee/0x170
[  395.029916][   T73]      __sys_sendmsg+0xcd/0x170
[  395.029916][   T73]      do_syscall_64+0xc6/0x1e0
[  395.029916][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  395.029916][   T73] 
[  395.031851][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  395.032159][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  395.032159][   T73]      netdev_get_by_index+0x5e/0x80
[  395.032159][   T73]      fib6_nh_init+0x3d8/0x1580
[  395.032159][   T73]      ip6_route_info_create+0xf18/0x17d0
[  395.032159][   T73]      addrconf_f6i_alloc+0x265/0x560
[  395.032159][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  395.032159][   T73]      addrconf_join_anycast+0x1c0/0x220
[  395.032159][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  395.032159][   T73]      addrconf_dad_completed+0x12b/0xe20
[  395.032159][   T73]      addrconf_dad_begin+0x310/0x670
[  395.032159][   T73]      addrconf_dad_work+0x10b/0xab0
[  395.032159][   T73]      process_one_work+0x84d/0x18a0
[  395.032159][   T73]      worker_thread+0x587/0xd30
[  395.032159][   T73]      kthread+0x28a/0x350
[  395.032159][   T73]      ret_from_fork+0x31/0x70
[  395.032159][   T73]      ret_from_fork_asm+0x1a/0x30
[  395.032159][   T73] 
[  395.034303][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  395.034303][   T73]      netdev_get_by_index+0x5e/0x80
[  395.034303][   T73]      fib6_nh_init+0x3d8/0x1580
[  395.034303][   T73]      ip6_route_info_create+0xf18/0x17d0
[  395.034303][   T73]      ip6_route_add+0x1c/0x140
[  395.034303][   T73]      addrconf_prefix_route+0x2a6/0x430
[  395.034303][   T73]      inet6_addr_add+0x4f8/0xa40
[  395.034303][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  395.034303][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  395.034303][   T73]      netlink_rcv_skb+0x130/0x360
[  395.034303][   T73]      netlink_unicast+0x449/0x710
[  395.034303][   T73]      netlink_sendmsg+0x723/0xbe0
[  395.034303][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  395.034303][   T73]      ___sys_sendmsg+0xee/0x170
[  395.034303][   T73]      __sys_sendmsg+0xcd/0x170
[  395.034303][   T73]      do_syscall_64+0xc6/0x1e0
[  395.034303][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  395.034303][   T73] 
[  395.036537][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  395.036537][   T73]      netdev_get_by_index+0x5e/0x80
[  395.036537][   T73]      fib6_nh_init+0x3d8/0x1580
[  395.036537][   T73]      ip6_route_info_create+0xf18/0x17d0
[  395.036537][   T73]      addrconf_f6i_alloc+0x315/0x560
[  395.036537][   T73]      ipv6_add_addr+0x411/0x2000
[  395.036537][   T73]      inet6_addr_add+0x30e/0xa40
[  395.036537][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  395.036537][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  395.036537][   T73]      netlink_rcv_skb+0x130/0x360
[  395.036537][   T73]      netlink_unicast+0x449/0x710
[  395.036537][   T73]      netlink_sendmsg+0x723/0xbe0
[  395.036537][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  395.036537][   T73]      ___sys_sendmsg+0xee/0x170
[  395.036537][   T73]      __sys_sendmsg+0xcd/0x170
[  395.036537][   T73]      do_syscall_64+0xc6/0x1e0
[  395.036537][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  395.036537][   T73] 
[  395.038854][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  395.038854][   T73]      netdev_get_by_index+0x5e/0x80
[  395.038854][   T73]      fib6_nh_init+0x3d8/0x1580
[  395.038854][   T73]      ip6_route_info_create+0xf18/0x17d0
[  395.038854][   T73]      ip6_route_add+0x1c/0x140
[  395.038854][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  395.038854][   T73]      addrconf_add_dev+0xe2/0x170
[  395.038854][   T73]      inet6_addr_add+0x12f/0xa40
[  395.038854][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  395.038854][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  395.038854][   T73]      netlink_rcv_skb+0x130/0x360
[  395.038854][   T73]      netlink_unicast+0x449/0x710
[  395.038854][   T73]      netlink_sendmsg+0x723/0xbe0
[  395.038854][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  395.038854][   T73]      ___sys_sendmsg+0xee/0x170
[  395.038854][   T73]      __sys_sendmsg+0xcd/0x170
[  395.038854][   T73]      do_syscall_64+0xc6/0x1e0
[  395.038854][   T73] 
[  395.041281][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  395.041281][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  395.041281][   T73]      ipv6_find_idev+0x102/0x170
[  395.041281][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  395.041281][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  395.041281][   T73]      netlink_rcv_skb+0x130/0x360
[  395.041281][   T73]      netlink_unicast+0x449/0x710
[  395.041281][   T73]      netlink_sendmsg+0x723/0xbe0
[  395.041281][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  395.041281][   T73]      ___sys_sendmsg+0xee/0x170
[  395.041281][   T73]      __sys_sendmsg+0xcd/0x170
[  395.041281][   T73]      do_syscall_64+0xc6/0x1e0
[  395.041281][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  395.041281][   T73] 
[  395.043192][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  395.043192][   T73]      neigh_parms_alloc+0x1e5/0x510
[  395.043192][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  395.043192][   T73]      ipv6_find_idev+0x102/0x170
[  395.043192][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  395.043192][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  395.043192][   T73]      netlink_rcv_skb+0x130/0x360
[  395.043192][   T73]      netlink_unicast+0x449/0x710
[  395.043192][   T73]      netlink_sendmsg+0x723/0xbe0
[  395.043192][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  395.043192][   T73]      ___sys_sendmsg+0xee/0x170
[  395.043192][   T73]      __sys_sendmsg+0xcd/0x170
[  395.043192][   T73]      do_syscall_64+0xc6/0x1e0
[  395.043192][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  395.043192][   T73] 
[  395.045398][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  395.045757][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  395.045757][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  395.045757][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  395.045757][   T73]      fib6_nh_init+0xa22/0x1580
[  395.045757][   T73]      ip6_route_info_create+0xf18/0x17d0
[  395.045757][   T73]      ip6_route_add+0x1c/0x140
[  395.045757][   T73]      inet6_rtm_newroute+0x104/0x110
[  395.045757][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  395.045757][   T73]      netlink_rcv_skb+0x130/0x360
[  395.045757][   T73]      netlink_unicast+0x449/0x710
[  395.045757][   T73]      netlink_sendmsg+0x723/0xbe0
[  395.045757][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  395.045757][   T73]      ___sys_sendmsg+0xee/0x170
[  395.045757][   T73]      __sys_sendmsg+0xcd/0x170
[  395.045757][   T73]      do_syscall_64+0xc6/0x1e0
[  395.045757][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  395.045757][   T73] 
[  395.048270][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  395.048270][   T73]      dst_init+0x84/0x4a0
[  395.048270][   T73]      dst_alloc+0x97/0x150
[  395.048270][   T73]      ip6_dst_alloc+0x23/0x90
[  395.048270][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  395.048270][   T73]      ip6_pol_route+0x56f/0x840
[  395.048270][   T73]      fib6_rule_lookup+0x456/0x630
[  395.048270][   T73]      ip6_route_input+0x59c/0xa50
[  395.048270][   T73]      ipv6_rcv+0x397/0x810
[  395.048270][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  395.048270][   T73]      process_backlog+0x101/0x620
[  395.048270][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  395.048270][   T73]      net_rx_action+0x495/0xbe0
[  395.048270][   T73]      __do_softirq+0x1b5/0x7f6
[  395.048270][   T73] 
[  395.050719][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  395.050719][   T73]      netdev_get_by_index+0x5e/0x80
[  395.050719][   T73]      fib6_nh_init+0x3d8/0x1580
[  395.050719][   T73]      ip6_route_info_create+0xf18/0x17d0
[  395.050719][   T73]      ip6_route_add+0x1c/0x140
[  395.050719][   T73]      addrconf_prefix_route+0x2a6/0x430
[  395.050719][   T73]      inet6_addr_add+0x4f8/0xa40
[  395.050719][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  395.050719][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  395.050719][   T73]      netlink_rcv_skb+0x130/0x360
[  395.050719][   T73]      netlink_unicast+0x449/0x710
[  395.050719][   T73]      netlink_sendmsg+0x723/0xbe0
[  395.050719][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  395.050719][   T73]      ___sys_sendmsg+0xee/0x170
[  395.050719][   T73]      __sys_sendmsg+0xcd/0x170
[  395.050719][   T73]      do_syscall_64+0xc6/0x1e0
[  395.050719][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  395.050719][   T73] 
[  395.053606][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  395.053606][   T73]      netdev_get_by_index+0x5e/0x80
[  395.053606][   T73]      fib6_nh_init+0x3d8/0x1580
[  395.053606][   T73]      ip6_route_info_create+0xf18/0x17d0
[  395.053606][   T73]      addrconf_f6i_alloc+0x315/0x560
[  395.053606][   T73]      ipv6_add_addr+0x411/0x2000
[  395.053606][   T73]      inet6_addr_add+0x30e/0xa40
[  395.053606][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  395.053606][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  395.053606][   T73]      netlink_rcv_skb+0x130/0x360
[  395.053606][   T73]      netlink_unicast+0x449/0x710
[  395.053606][   T73]      netlink_sendmsg+0x723/0xbe0
[  395.053606][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  395.053606][   T73]      ___sys_sendmsg+0xee/0x170
[  395.053606][   T73]      __sys_sendmsg+0xcd/0x170
[  395.053606][   T73]      do_syscall_64+0xc6/0x1e0
[  395.053606][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  395.053606][   T73] 
[  395.056429][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  395.056429][   T73]      netdev_get_by_index+0x5e/0x80
[  395.056429][   T73]      fib6_nh_init+0x3d8/0x1580
[  395.056429][   T73]      ip6_route_info_create+0xf18/0x17d0
[  395.056429][   T73]      ip6_route_add+0x1c/0x140
[  395.056429][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  395.056429][   T73]      addrconf_add_dev+0xe2/0x170
[  395.056429][   T73]      inet6_addr_add+0x12f/0xa40
[  395.056429][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  395.056429][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  395.056429][   T73]      netlink_rcv_skb+0x130/0x360
[  395.056429][   T73]      netlink_unicast+0x449/0x710
[  395.056429][   T73]      netlink_sendmsg+0x723/0xbe0
[  395.056429][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  395.056429][   T73]      ___sys_sendmsg+0xee/0x170
[  395.056429][   T73]      __sys_sendmsg+0xcd/0x170
[  395.056429][   T73]      do_syscall_64+0xc6/0x1e0
[  395.056429][   T73] 
[  395.059166][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  395.059166][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  395.059166][   T73]      ipv6_find_idev+0x102/0x170
[  395.059166][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  395.059166][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  395.059166][   T73]      netlink_rcv_skb+0x130/0x360
[  395.059166][   T73]      netlink_unicast+0x449/0x710
[  395.059166][   T73]      netlink_sendmsg+0x723/0xbe0
[  395.059166][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  395.059166][   T73]      ___sys_sendmsg+0xee/0x170
[  395.059166][   T73]      __sys_sendmsg+0xcd/0x170
[  395.059166][   T73]      do_syscall_64+0xc6/0x1e0
[  395.059166][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  395.059166][   T73] 
[  395.061241][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  395.061241][   T73]      neigh_parms_alloc+0x1e5/0x510
[  395.061241][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  395.061241][   T73]      ipv6_find_idev+0x102/0x170
[  395.061241][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  395.061241][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  395.061241][   T73]      netlink_rcv_skb+0x130/0x360
[  395.061241][   T73]      netlink_unicast+0x449/0x710
[  395.061241][   T73]      netlink_sendmsg+0x723/0xbe0
[  395.061241][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  395.061241][   T73]      ___sys_sendmsg+0xee/0x170
[  395.061241][   T73]      __sys_sendmsg+0xcd/0x170
[  395.061241][   T73]      do_syscall_64+0xc6/0x1e0
[  395.061241][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  395.061241][   T73] 
[  395.063556][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  395.064495][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  395.064495][   T73]      netdev_get_by_index+0x5e/0x80
[  395.064495][   T73]      fib6_nh_init+0x3d8/0x1580
[  395.064495][   T73]      ip6_route_info_create+0xf18/0x17d0
[  395.064495][   T73]      addrconf_f6i_alloc+0x265/0x560
[  395.064495][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  395.064495][   T73]      addrconf_join_anycast+0x1c0/0x220
[  395.064495][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  395.064495][   T73]      addrconf_dad_completed+0x12b/0xe20
[  395.064495][   T73]      addrconf_dad_begin+0x310/0x670
[  395.064495][   T73]      addrconf_dad_work+0x10b/0xab0
[  395.064495][   T73]      process_one_work+0x84d/0x18a0
[  395.064495][   T73]      worker_thread+0x587/0xd30
[  395.064495][   T73]      kthread+0x28a/0x350
[  395.064495][   T73]      ret_from_fork+0x31/0x70
[  395.064495][   T73]      ret_from_fork_asm+0x1a/0x30
[  395.064495][   T73] 
[  395.066935][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  395.066935][   T73]      netdev_get_by_index+0x5e/0x80
[  395.066935][   T73]      fib6_nh_init+0x3d8/0x1580
[  395.066935][   T73]      ip6_route_info_create+0xf18/0x17d0
[  395.066935][   T73]      ip6_route_add+0x1c/0x140
[  395.066935][   T73]      addrconf_prefix_route+0x2a6/0x430
[  395.066935][   T73]      inet6_addr_add+0x4f8/0xa40
[  395.066935][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  395.066935][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  395.066935][   T73]      netlink_rcv_skb+0x130/0x360
[  395.066935][   T73]      netlink_unicast+0x449/0x710
[  395.066935][   T73]      netlink_sendmsg+0x723/0xbe0
[  395.066935][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  395.066935][   T73]      ___sys_sendmsg+0xee/0x170
[  395.066935][   T73]      __sys_sendmsg+0xcd/0x170
[  395.066935][   T73]      do_syscall_64+0xc6/0x1e0
[  395.066935][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  395.066935][   T73] 
[  395.069314][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  395.069314][   T73]      netdev_get_by_index+0x5e/0x80
[  395.069314][   T73]      fib6_nh_init+0x3d8/0x1580
[  395.069314][   T73]      ip6_route_info_create+0xf18/0x17d0
[  395.069314][   T73]      addrconf_f6i_alloc+0x315/0x560
[  395.069314][   T73]      ipv6_add_addr+0x411/0x2000
[  395.069314][   T73]      inet6_addr_add+0x30e/0xa40
[  395.069314][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  395.069314][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  395.069314][   T73]      netlink_rcv_skb+0x130/0x360
[  395.069314][   T73]      netlink_unicast+0x449/0x710
[  395.069314][   T73]      netlink_sendmsg+0x723/0xbe0
[  395.069314][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  395.069314][   T73]      ___sys_sendmsg+0xee/0x170
[  395.069314][   T73]      __sys_sendmsg+0xcd/0x170
[  395.069314][   T73]      do_syscall_64+0xc6/0x1e0
[  395.069314][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  395.069314][   T73] 
[  395.071797][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  395.071797][   T73]      netdev_get_by_index+0x5e/0x80
[  395.071797][   T73]      fib6_nh_init+0x3d8/0x1580
[  395.071797][   T73]      ip6_route_info_create+0xf18/0x17d0
[  395.071797][   T73]      ip6_route_add+0x1c/0x140
[  395.071797][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  395.071797][   T73]      addrconf_add_dev+0xe2/0x170
[  395.071797][   T73]      inet6_addr_add+0x12f/0xa40
[  395.071797][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  395.071797][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  395.071797][   T73]      netlink_rcv_skb+0x130/0x360
[  395.071797][   T73]      netlink_unicast+0x449/0x710
[  395.071797][   T73]      netlink_sendmsg+0x723/0xbe0
[  395.071797][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  395.071797][   T73]      ___sys_sendmsg+0xee/0x170
[  395.071797][   T73]      __sys_sendmsg+0xcd/0x170
[  395.071797][   T73]      do_syscall_64+0xc6/0x1e0
[  395.071797][   T73] 
[  395.074282][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  395.074282][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  395.074282][   T73]      ipv6_find_idev+0x102/0x170
[  395.074282][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  395.074282][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  395.074282][   T73]      netlink_rcv_skb+0x130/0x360
[  395.074282][   T73]      netlink_unicast+0x449/0x710
[  395.074282][   T73]      netlink_sendmsg+0x723/0xbe0
[  395.074282][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  395.074282][   T73]      ___sys_sendmsg+0xee/0x170
[  395.074282][   T73]      __sys_sendmsg+0xcd/0x170
[  395.074282][   T73]      do_syscall_64+0xc6/0x1e0
[  395.074282][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  395.074282][   T73] 
[  395.076247][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  395.076247][   T73]      neigh_parms_alloc+0x1e5/0x510
[  395.076247][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  395.076247][   T73]      ipv6_find_idev+0x102/0x170
[  395.076247][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  395.076247][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  395.076247][   T73]      netlink_rcv_skb+0x130/0x360
[  395.076247][   T73]      netlink_unicast+0x449/0x710
[  395.076247][   T73]      netlink_sendmsg+0x723/0xbe0
[  395.076247][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  395.076247][   T73]      ___sys_sendmsg+0xee/0x170
[  395.076247][   T73]      __sys_sendmsg+0xcd/0x170
[  395.076247][   T73]      do_syscall_64+0xc6/0x1e0
[  395.076247][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  395.076247][   T73] 
[  405.103794][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  405.104404][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  405.104404][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  405.104404][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  405.104404][   T73]      fib6_nh_init+0xa22/0x1580
[  405.104404][   T73]      ip6_route_info_create+0xf18/0x17d0
[  405.104404][   T73]      ip6_route_add+0x1c/0x140
[  405.104404][   T73]      inet6_rtm_newroute+0x104/0x110
[  405.104404][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  405.104404][   T73]      netlink_rcv_skb+0x130/0x360
[  405.104404][   T73]      netlink_unicast+0x449/0x710
[  405.104404][   T73]      netlink_sendmsg+0x723/0xbe0
[  405.104404][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  405.104404][   T73]      ___sys_sendmsg+0xee/0x170
[  405.104404][   T73]      __sys_sendmsg+0xcd/0x170
[  405.104404][   T73]      do_syscall_64+0xc6/0x1e0
[  405.104404][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  405.104404][   T73] 
[  405.107436][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  405.107436][   T73]      dst_init+0x84/0x4a0
[  405.107436][   T73]      dst_alloc+0x97/0x150
[  405.107436][   T73]      ip6_dst_alloc+0x23/0x90
[  405.107436][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  405.107436][   T73]      ip6_pol_route+0x56f/0x840
[  405.107436][   T73]      fib6_rule_lookup+0x456/0x630
[  405.107436][   T73]      ip6_route_input+0x59c/0xa50
[  405.107436][   T73]      ipv6_rcv+0x397/0x810
[  405.107436][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  405.107436][   T73]      process_backlog+0x101/0x620
[  405.107436][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  405.107436][   T73]      net_rx_action+0x495/0xbe0
[  405.107436][   T73]      __do_softirq+0x1b5/0x7f6
[  405.107436][   T73] 
[  405.110068][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  405.110068][   T73]      netdev_get_by_index+0x5e/0x80
[  405.110068][   T73]      fib6_nh_init+0x3d8/0x1580
[  405.110068][   T73]      ip6_route_info_create+0xf18/0x17d0
[  405.110068][   T73]      ip6_route_add+0x1c/0x140
[  405.110068][   T73]      addrconf_prefix_route+0x2a6/0x430
[  405.110068][   T73]      inet6_addr_add+0x4f8/0xa40
[  405.110068][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  405.110068][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  405.110068][   T73]      netlink_rcv_skb+0x130/0x360
[  405.110068][   T73]      netlink_unicast+0x449/0x710
[  405.110068][   T73]      netlink_sendmsg+0x723/0xbe0
[  405.110068][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  405.110068][   T73]      ___sys_sendmsg+0xee/0x170
[  405.110068][   T73]      __sys_sendmsg+0xcd/0x170
[  405.110068][   T73]      do_syscall_64+0xc6/0x1e0
[  405.110068][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  405.110068][   T73] 
[  405.113268][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  405.113268][   T73]      netdev_get_by_index+0x5e/0x80
[  405.113268][   T73]      fib6_nh_init+0x3d8/0x1580
[  405.113268][   T73]      ip6_route_info_create+0xf18/0x17d0
[  405.113268][   T73]      addrconf_f6i_alloc+0x315/0x560
[  405.113268][   T73]      ipv6_add_addr+0x411/0x2000
[  405.113268][   T73]      inet6_addr_add+0x30e/0xa40
[  405.113268][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  405.113268][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  405.113268][   T73]      netlink_rcv_skb+0x130/0x360
[  405.113268][   T73]      netlink_unicast+0x449/0x710
[  405.113268][   T73]      netlink_sendmsg+0x723/0xbe0
[  405.113268][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  405.113268][   T73]      ___sys_sendmsg+0xee/0x170
[  405.113268][   T73]      __sys_sendmsg+0xcd/0x170
[  405.113268][   T73]      do_syscall_64+0xc6/0x1e0
[  405.113268][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  405.113268][   T73] 
[  405.115824][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  405.115824][   T73]      netdev_get_by_index+0x5e/0x80
[  405.115824][   T73]      fib6_nh_init+0x3d8/0x1580
[  405.115824][   T73]      ip6_route_info_create+0xf18/0x17d0
[  405.115824][   T73]      ip6_route_add+0x1c/0x140
[  405.115824][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  405.115824][   T73]      addrconf_add_dev+0xe2/0x170
[  405.115824][   T73]      inet6_addr_add+0x12f/0xa40
[  405.115824][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  405.115824][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  405.115824][   T73]      netlink_rcv_skb+0x130/0x360
[  405.115824][   T73]      netlink_unicast+0x449/0x710
[  405.115824][   T73]      netlink_sendmsg+0x723/0xbe0
[  405.115824][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  405.115824][   T73]      ___sys_sendmsg+0xee/0x170
[  405.115824][   T73]      __sys_sendmsg+0xcd/0x170
[  405.115824][   T73]      do_syscall_64+0xc6/0x1e0
[  405.115824][   T73] 
[  405.118001][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  405.118001][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  405.118001][   T73]      ipv6_find_idev+0x102/0x170
[  405.118001][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  405.118001][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  405.118001][   T73]      netlink_rcv_skb+0x130/0x360
[  405.118001][   T73]      netlink_unicast+0x449/0x710
[  405.118001][   T73]      netlink_sendmsg+0x723/0xbe0
[  405.118001][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  405.118001][   T73]      ___sys_sendmsg+0xee/0x170
[  405.118001][   T73]      __sys_sendmsg+0xcd/0x170
[  405.118001][   T73]      do_syscall_64+0xc6/0x1e0
[  405.118001][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  405.118001][   T73] 
[  405.119712][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  405.119712][   T73]      neigh_parms_alloc+0x1e5/0x510
[  405.119712][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  405.119712][   T73]      ipv6_find_idev+0x102/0x170
[  405.119712][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  405.119712][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  405.119712][   T73]      netlink_rcv_skb+0x130/0x360
[  405.119712][   T73]      netlink_unicast+0x449/0x710
[  405.119712][   T73]      netlink_sendmsg+0x723/0xbe0
[  405.119712][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  405.119712][   T73]      ___sys_sendmsg+0xee/0x170
[  405.119712][   T73]      __sys_sendmsg+0xcd/0x170
[  405.119712][   T73]      do_syscall_64+0xc6/0x1e0
[  405.119712][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  405.119712][   T73] 
[  405.121614][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  405.121936][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  405.121936][   T73]      netdev_get_by_index+0x5e/0x80
[  405.121936][   T73]      fib6_nh_init+0x3d8/0x1580
[  405.121936][   T73]      ip6_route_info_create+0xf18/0x17d0
[  405.121936][   T73]      addrconf_f6i_alloc+0x265/0x560
[  405.121936][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  405.121936][   T73]      addrconf_join_anycast+0x1c0/0x220
[  405.121936][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  405.121936][   T73]      addrconf_dad_completed+0x12b/0xe20
[  405.121936][   T73]      addrconf_dad_begin+0x310/0x670
[  405.121936][   T73]      addrconf_dad_work+0x10b/0xab0
[  405.121936][   T73]      process_one_work+0x84d/0x18a0
[  405.121936][   T73]      worker_thread+0x587/0xd30
[  405.121936][   T73]      kthread+0x28a/0x350
[  405.121936][   T73]      ret_from_fork+0x31/0x70
[  405.121936][   T73]      ret_from_fork_asm+0x1a/0x30
[  405.121936][   T73] 
[  405.124060][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  405.124060][   T73]      netdev_get_by_index+0x5e/0x80
[  405.124060][   T73]      fib6_nh_init+0x3d8/0x1580
[  405.124060][   T73]      ip6_route_info_create+0xf18/0x17d0
[  405.124060][   T73]      ip6_route_add+0x1c/0x140
[  405.124060][   T73]      addrconf_prefix_route+0x2a6/0x430
[  405.124060][   T73]      inet6_addr_add+0x4f8/0xa40
[  405.124060][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  405.124060][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  405.124060][   T73]      netlink_rcv_skb+0x130/0x360
[  405.124060][   T73]      netlink_unicast+0x449/0x710
[  405.124060][   T73]      netlink_sendmsg+0x723/0xbe0
[  405.124060][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  405.124060][   T73]      ___sys_sendmsg+0xee/0x170
[  405.124060][   T73]      __sys_sendmsg+0xcd/0x170
[  405.124060][   T73]      do_syscall_64+0xc6/0x1e0
[  405.124060][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  405.124060][   T73] 
[  405.126283][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  405.126283][   T73]      netdev_get_by_index+0x5e/0x80
[  405.126283][   T73]      fib6_nh_init+0x3d8/0x1580
[  405.126283][   T73]      ip6_route_info_create+0xf18/0x17d0
[  405.126283][   T73]      addrconf_f6i_alloc+0x315/0x560
[  405.126283][   T73]      ipv6_add_addr+0x411/0x2000
[  405.126283][   T73]      inet6_addr_add+0x30e/0xa40
[  405.126283][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  405.126283][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  405.126283][   T73]      netlink_rcv_skb+0x130/0x360
[  405.126283][   T73]      netlink_unicast+0x449/0x710
[  405.126283][   T73]      netlink_sendmsg+0x723/0xbe0
[  405.126283][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  405.126283][   T73]      ___sys_sendmsg+0xee/0x170
[  405.126283][   T73]      __sys_sendmsg+0xcd/0x170
[  405.126283][   T73]      do_syscall_64+0xc6/0x1e0
[  405.126283][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  405.126283][   T73] 
[  405.128496][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  405.128496][   T73]      netdev_get_by_index+0x5e/0x80
[  405.128496][   T73]      fib6_nh_init+0x3d8/0x1580
[  405.128496][   T73]      ip6_route_info_create+0xf18/0x17d0
[  405.128496][   T73]      ip6_route_add+0x1c/0x140
[  405.128496][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  405.128496][   T73]      addrconf_add_dev+0xe2/0x170
[  405.128496][   T73]      inet6_addr_add+0x12f/0xa40
[  405.128496][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  405.128496][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  405.128496][   T73]      netlink_rcv_skb+0x130/0x360
[  405.128496][   T73]      netlink_unicast+0x449/0x710
[  405.128496][   T73]      netlink_sendmsg+0x723/0xbe0
[  405.128496][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  405.128496][   T73]      ___sys_sendmsg+0xee/0x170
[  405.128496][   T73]      __sys_sendmsg+0xcd/0x170
[  405.128496][   T73]      do_syscall_64+0xc6/0x1e0
[  405.128496][   T73] 
[  405.130667][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  405.130667][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  405.130667][   T73]      ipv6_find_idev+0x102/0x170
[  405.130667][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  405.130667][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  405.130667][   T73]      netlink_rcv_skb+0x130/0x360
[  405.130667][   T73]      netlink_unicast+0x449/0x710
[  405.130667][   T73]      netlink_sendmsg+0x723/0xbe0
[  405.130667][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  405.130667][   T73]      ___sys_sendmsg+0xee/0x170
[  405.130667][   T73]      __sys_sendmsg+0xcd/0x170
[  405.130667][   T73]      do_syscall_64+0xc6/0x1e0
[  405.130667][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  405.130667][   T73] 
[  405.132364][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  405.132364][   T73]      neigh_parms_alloc+0x1e5/0x510
[  405.132364][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  405.132364][   T73]      ipv6_find_idev+0x102/0x170
[  405.132364][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  405.132364][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  405.132364][   T73]      netlink_rcv_skb+0x130/0x360
[  405.132364][   T73]      netlink_unicast+0x449/0x710
[  405.132364][   T73]      netlink_sendmsg+0x723/0xbe0
[  405.132364][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  405.132364][   T73]      ___sys_sendmsg+0xee/0x170
[  405.132364][   T73]      __sys_sendmsg+0xcd/0x170
[  405.132364][   T73]      do_syscall_64+0xc6/0x1e0
[  405.132364][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  405.132364][   T73] 
[  405.134270][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  405.134563][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  405.134563][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  405.134563][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  405.134563][   T73]      fib6_nh_init+0xa22/0x1580
[  405.134563][   T73]      ip6_route_info_create+0xf18/0x17d0
[  405.134563][   T73]      ip6_route_add+0x1c/0x140
[  405.134563][   T73]      inet6_rtm_newroute+0x104/0x110
[  405.134563][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  405.134563][   T73]      netlink_rcv_skb+0x130/0x360
[  405.134563][   T73]      netlink_unicast+0x449/0x710
[  405.134563][   T73]      netlink_sendmsg+0x723/0xbe0
[  405.134563][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  405.134563][   T73]      ___sys_sendmsg+0xee/0x170
[  405.134563][   T73]      __sys_sendmsg+0xcd/0x170
[  405.134563][   T73]      do_syscall_64+0xc6/0x1e0
[  405.134563][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  405.134563][   T73] 
[  405.137554][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  405.137554][   T73]      dst_init+0x84/0x4a0
[  405.137554][   T73]      dst_alloc+0x97/0x150
[  405.137554][   T73]      ip6_dst_alloc+0x23/0x90
[  405.137554][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  405.137554][   T73]      ip6_pol_route+0x56f/0x840
[  405.137554][   T73]      fib6_rule_lookup+0x456/0x630
[  405.137554][   T73]      ip6_route_input+0x59c/0xa50
[  405.137554][   T73]      ipv6_rcv+0x397/0x810
[  405.137554][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  405.137554][   T73]      process_backlog+0x101/0x620
[  405.137554][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  405.137554][   T73]      net_rx_action+0x495/0xbe0
[  405.137554][   T73]      __do_softirq+0x1b5/0x7f6
[  405.137554][   T73] 
[  405.140722][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  405.140722][   T73]      netdev_get_by_index+0x5e/0x80
[  405.140722][   T73]      fib6_nh_init+0x3d8/0x1580
[  405.140722][   T73]      ip6_route_info_create+0xf18/0x17d0
[  405.140722][   T73]      ip6_route_add+0x1c/0x140
[  405.140722][   T73]      addrconf_prefix_route+0x2a6/0x430
[  405.140722][   T73]      inet6_addr_add+0x4f8/0xa40
[  405.140722][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  405.140722][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  405.140722][   T73]      netlink_rcv_skb+0x130/0x360
[  405.140722][   T73]      netlink_unicast+0x449/0x710
[  405.140722][   T73]      netlink_sendmsg+0x723/0xbe0
[  405.140722][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  405.140722][   T73]      ___sys_sendmsg+0xee/0x170
[  405.140722][   T73]      __sys_sendmsg+0xcd/0x170
[  405.140722][   T73]      do_syscall_64+0xc6/0x1e0
[  405.140722][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  405.140722][   T73] 
[  405.144286][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  405.144286][   T73]      netdev_get_by_index+0x5e/0x80
[  405.144286][   T73]      fib6_nh_init+0x3d8/0x1580
[  405.144286][   T73]      ip6_route_info_create+0xf18/0x17d0
[  405.144286][   T73]      addrconf_f6i_alloc+0x315/0x560
[  405.144286][   T73]      ipv6_add_addr+0x411/0x2000
[  405.144286][   T73]      inet6_addr_add+0x30e/0xa40
[  405.144286][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  405.144286][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  405.144286][   T73]      netlink_rcv_skb+0x130/0x360
[  405.144286][   T73]      netlink_unicast+0x449/0x710
[  405.144286][   T73]      netlink_sendmsg+0x723/0xbe0
[  405.144286][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  405.144286][   T73]      ___sys_sendmsg+0xee/0x170
[  405.144286][   T73]      __sys_sendmsg+0xcd/0x170
[  405.144286][   T73]      do_syscall_64+0xc6/0x1e0
[  405.144286][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  405.144286][   T73] 
[  405.147440][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  405.147440][   T73]      netdev_get_by_index+0x5e/0x80
[  405.147440][   T73]      fib6_nh_init+0x3d8/0x1580
[  405.147440][   T73]      ip6_route_info_create+0xf18/0x17d0
[  405.147440][   T73]      ip6_route_add+0x1c/0x140
[  405.147440][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  405.147440][   T73]      addrconf_add_dev+0xe2/0x170
[  405.147440][   T73]      inet6_addr_add+0x12f/0xa40
[  405.147440][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  405.147440][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  405.147440][   T73]      netlink_rcv_skb+0x130/0x360
[  405.147440][   T73]      netlink_unicast+0x449/0x710
[  405.147440][   T73]      netlink_sendmsg+0x723/0xbe0
[  405.147440][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  405.147440][   T73]      ___sys_sendmsg+0xee/0x170
[  405.147440][   T73]      __sys_sendmsg+0xcd/0x170
[  405.147440][   T73]      do_syscall_64+0xc6/0x1e0
[  405.147440][   T73] 
[  405.150885][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  405.150885][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  405.150885][   T73]      ipv6_find_idev+0x102/0x170
[  405.150885][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  405.150885][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  405.150885][   T73]      netlink_rcv_skb+0x130/0x360
[  405.150885][   T73]      netlink_unicast+0x449/0x710
[  405.150885][   T73]      netlink_sendmsg+0x723/0xbe0
[  405.150885][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  405.150885][   T73]      ___sys_sendmsg+0xee/0x170
[  405.150885][   T73]      __sys_sendmsg+0xcd/0x170
[  405.150885][   T73]      do_syscall_64+0xc6/0x1e0
[  405.150885][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  405.150885][   T73] 
[  405.153782][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  405.153782][   T73]      neigh_parms_alloc+0x1e5/0x510
[  405.153782][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  405.153782][   T73]      ipv6_find_idev+0x102/0x170
[  405.153782][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  405.153782][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  405.153782][   T73]      netlink_rcv_skb+0x130/0x360
[  405.153782][   T73]      netlink_unicast+0x449/0x710
[  405.153782][   T73]      netlink_sendmsg+0x723/0xbe0
[  405.153782][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  405.153782][   T73]      ___sys_sendmsg+0xee/0x170
[  405.153782][   T73]      __sys_sendmsg+0xcd/0x170
[  405.153782][   T73]      do_syscall_64+0xc6/0x1e0
[  405.153782][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  405.153782][   T73] 
[  405.156795][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  405.157338][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  405.157338][   T73]      netdev_get_by_index+0x5e/0x80
[  405.157338][   T73]      fib6_nh_init+0x3d8/0x1580
[  405.157338][   T73]      ip6_route_info_create+0xf18/0x17d0
[  405.157338][   T73]      addrconf_f6i_alloc+0x265/0x560
[  405.157338][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  405.157338][   T73]      addrconf_join_anycast+0x1c0/0x220
[  405.157338][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  405.157338][   T73]      addrconf_dad_completed+0x12b/0xe20
[  405.157338][   T73]      addrconf_dad_begin+0x310/0x670
[  405.157338][   T73]      addrconf_dad_work+0x10b/0xab0
[  405.157338][   T73]      process_one_work+0x84d/0x18a0
[  405.157338][   T73]      worker_thread+0x587/0xd30
[  405.157338][   T73]      kthread+0x28a/0x350
[  405.157338][   T73]      ret_from_fork+0x31/0x70
[  405.157338][   T73]      ret_from_fork_asm+0x1a/0x30
[  405.157338][   T73] 
[  405.159875][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  405.159875][   T73]      netdev_get_by_index+0x5e/0x80
[  405.159875][   T73]      fib6_nh_init+0x3d8/0x1580
[  405.159875][   T73]      ip6_route_info_create+0xf18/0x17d0
[  405.159875][   T73]      ip6_route_add+0x1c/0x140
[  405.159875][   T73]      addrconf_prefix_route+0x2a6/0x430
[  405.159875][   T73]      inet6_addr_add+0x4f8/0xa40
[  405.159875][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  405.159875][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  405.159875][   T73]      netlink_rcv_skb+0x130/0x360
[  405.159875][   T73]      netlink_unicast+0x449/0x710
[  405.159875][   T73]      netlink_sendmsg+0x723/0xbe0
[  405.159875][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  405.159875][   T73]      ___sys_sendmsg+0xee/0x170
[  405.159875][   T73]      __sys_sendmsg+0xcd/0x170
[  405.159875][   T73]      do_syscall_64+0xc6/0x1e0
[  405.159875][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  405.159875][   T73] 
[  405.162324][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  405.162324][   T73]      netdev_get_by_index+0x5e/0x80
[  405.162324][   T73]      fib6_nh_init+0x3d8/0x1580
[  405.162324][   T73]      ip6_route_info_create+0xf18/0x17d0
[  405.162324][   T73]      addrconf_f6i_alloc+0x315/0x560
[  405.162324][   T73]      ipv6_add_addr+0x411/0x2000
[  405.162324][   T73]      inet6_addr_add+0x30e/0xa40
[  405.162324][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  405.162324][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  405.162324][   T73]      netlink_rcv_skb+0x130/0x360
[  405.162324][   T73]      netlink_unicast+0x449/0x710
[  405.162324][   T73]      netlink_sendmsg+0x723/0xbe0
[  405.162324][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  405.162324][   T73]      ___sys_sendmsg+0xee/0x170
[  405.162324][   T73]      __sys_sendmsg+0xcd/0x170
[  405.162324][   T73]      do_syscall_64+0xc6/0x1e0
[  405.162324][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  405.162324][   T73] 
[  405.164804][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  405.164804][   T73]      netdev_get_by_index+0x5e/0x80
[  405.164804][   T73]      fib6_nh_init+0x3d8/0x1580
[  405.164804][   T73]      ip6_route_info_create+0xf18/0x17d0
[  405.164804][   T73]      ip6_route_add+0x1c/0x140
[  405.164804][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  405.164804][   T73]      addrconf_add_dev+0xe2/0x170
[  405.164804][   T73]      inet6_addr_add+0x12f/0xa40
[  405.164804][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  405.164804][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  405.164804][   T73]      netlink_rcv_skb+0x130/0x360
[  405.164804][   T73]      netlink_unicast+0x449/0x710
[  405.164804][   T73]      netlink_sendmsg+0x723/0xbe0
[  405.164804][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  405.164804][   T73]      ___sys_sendmsg+0xee/0x170
[  405.164804][   T73]      __sys_sendmsg+0xcd/0x170
[  405.164804][   T73]      do_syscall_64+0xc6/0x1e0
[  405.164804][   T73] 
[  405.167286][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  405.167286][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  405.167286][   T73]      ipv6_find_idev+0x102/0x170
[  405.167286][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  405.167286][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  405.167286][   T73]      netlink_rcv_skb+0x130/0x360
[  405.167286][   T73]      netlink_unicast+0x449/0x710
[  405.167286][   T73]      netlink_sendmsg+0x723/0xbe0
[  405.167286][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  405.167286][   T73]      ___sys_sendmsg+0xee/0x170
[  405.167286][   T73]      __sys_sendmsg+0xcd/0x170
[  405.167286][   T73]      do_syscall_64+0xc6/0x1e0
[  405.167286][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  405.167286][   T73] 
[  405.169183][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  405.169183][   T73]      neigh_parms_alloc+0x1e5/0x510
[  405.169183][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  405.169183][   T73]      ipv6_find_idev+0x102/0x170
[  405.169183][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  405.169183][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  405.169183][   T73]      netlink_rcv_skb+0x130/0x360
[  405.169183][   T73]      netlink_unicast+0x449/0x710
[  405.169183][   T73]      netlink_sendmsg+0x723/0xbe0
[  405.169183][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  405.169183][   T73]      ___sys_sendmsg+0xee/0x170
[  405.169183][   T73]      __sys_sendmsg+0xcd/0x170
[  405.169183][   T73]      do_syscall_64+0xc6/0x1e0
[  405.169183][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  405.169183][   T73] 
[  415.407763][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  415.408390][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  415.408390][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  415.408390][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  415.408390][   T73]      fib6_nh_init+0xa22/0x1580
[  415.408390][   T73]      ip6_route_info_create+0xf18/0x17d0
[  415.408390][   T73]      ip6_route_add+0x1c/0x140
[  415.408390][   T73]      inet6_rtm_newroute+0x104/0x110
[  415.408390][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  415.408390][   T73]      netlink_rcv_skb+0x130/0x360
[  415.408390][   T73]      netlink_unicast+0x449/0x710
[  415.408390][   T73]      netlink_sendmsg+0x723/0xbe0
[  415.408390][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  415.408390][   T73]      ___sys_sendmsg+0xee/0x170
[  415.408390][   T73]      __sys_sendmsg+0xcd/0x170
[  415.408390][   T73]      do_syscall_64+0xc6/0x1e0
[  415.408390][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  415.408390][   T73] 
[  415.411536][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  415.411536][   T73]      dst_init+0x84/0x4a0
[  415.411536][   T73]      dst_alloc+0x97/0x150
[  415.411536][   T73]      ip6_dst_alloc+0x23/0x90
[  415.411536][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  415.411536][   T73]      ip6_pol_route+0x56f/0x840
[  415.411536][   T73]      fib6_rule_lookup+0x456/0x630
[  415.411536][   T73]      ip6_route_input+0x59c/0xa50
[  415.411536][   T73]      ipv6_rcv+0x397/0x810
[  415.411536][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  415.411536][   T73]      process_backlog+0x101/0x620
[  415.411536][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  415.411536][   T73]      net_rx_action+0x495/0xbe0
[  415.411536][   T73]      __do_softirq+0x1b5/0x7f6
[  415.411536][   T73] 
[  415.414293][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  415.414293][   T73]      netdev_get_by_index+0x5e/0x80
[  415.414293][   T73]      fib6_nh_init+0x3d8/0x1580
[  415.414293][   T73]      ip6_route_info_create+0xf18/0x17d0
[  415.414293][   T73]      ip6_route_add+0x1c/0x140
[  415.414293][   T73]      addrconf_prefix_route+0x2a6/0x430
[  415.414293][   T73]      inet6_addr_add+0x4f8/0xa40
[  415.414293][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  415.414293][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  415.414293][   T73]      netlink_rcv_skb+0x130/0x360
[  415.414293][   T73]      netlink_unicast+0x449/0x710
[  415.414293][   T73]      netlink_sendmsg+0x723/0xbe0
[  415.414293][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  415.414293][   T73]      ___sys_sendmsg+0xee/0x170
[  415.414293][   T73]      __sys_sendmsg+0xcd/0x170
[  415.414293][   T73]      do_syscall_64+0xc6/0x1e0
[  415.414293][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  415.414293][   T73] 
[  415.417706][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  415.417706][   T73]      netdev_get_by_index+0x5e/0x80
[  415.417706][   T73]      fib6_nh_init+0x3d8/0x1580
[  415.417706][   T73]      ip6_route_info_create+0xf18/0x17d0
[  415.417706][   T73]      addrconf_f6i_alloc+0x315/0x560
[  415.417706][   T73]      ipv6_add_addr+0x411/0x2000
[  415.417706][   T73]      inet6_addr_add+0x30e/0xa40
[  415.417706][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  415.417706][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  415.417706][   T73]      netlink_rcv_skb+0x130/0x360
[  415.417706][   T73]      netlink_unicast+0x449/0x710
[  415.417706][   T73]      netlink_sendmsg+0x723/0xbe0
[  415.417706][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  415.417706][   T73]      ___sys_sendmsg+0xee/0x170
[  415.417706][   T73]      __sys_sendmsg+0xcd/0x170
[  415.417706][   T73]      do_syscall_64+0xc6/0x1e0
[  415.417706][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  415.417706][   T73] 
[  415.421116][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  415.421116][   T73]      netdev_get_by_index+0x5e/0x80
[  415.421116][   T73]      fib6_nh_init+0x3d8/0x1580
[  415.421116][   T73]      ip6_route_info_create+0xf18/0x17d0
[  415.421116][   T73]      ip6_route_add+0x1c/0x140
[  415.421116][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  415.421116][   T73]      addrconf_add_dev+0xe2/0x170
[  415.421116][   T73]      inet6_addr_add+0x12f/0xa40
[  415.421116][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  415.421116][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  415.421116][   T73]      netlink_rcv_skb+0x130/0x360
[  415.421116][   T73]      netlink_unicast+0x449/0x710
[  415.421116][   T73]      netlink_sendmsg+0x723/0xbe0
[  415.421116][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  415.421116][   T73]      ___sys_sendmsg+0xee/0x170
[  415.421116][   T73]      __sys_sendmsg+0xcd/0x170
[  415.421116][   T73]      do_syscall_64+0xc6/0x1e0
[  415.421116][   T73] 
[  415.424459][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  415.424459][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  415.424459][   T73]      ipv6_find_idev+0x102/0x170
[  415.424459][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  415.424459][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  415.424459][   T73]      netlink_rcv_skb+0x130/0x360
[  415.424459][   T73]      netlink_unicast+0x449/0x710
[  415.424459][   T73]      netlink_sendmsg+0x723/0xbe0
[  415.424459][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  415.424459][   T73]      ___sys_sendmsg+0xee/0x170
[  415.424459][   T73]      __sys_sendmsg+0xcd/0x170
[  415.424459][   T73]      do_syscall_64+0xc6/0x1e0
[  415.424459][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  415.424459][   T73] 
[  415.427187][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  415.427187][   T73]      neigh_parms_alloc+0x1e5/0x510
[  415.427187][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  415.427187][   T73]      ipv6_find_idev+0x102/0x170
[  415.427187][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  415.427187][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  415.427187][   T73]      netlink_rcv_skb+0x130/0x360
[  415.427187][   T73]      netlink_unicast+0x449/0x710
[  415.427187][   T73]      netlink_sendmsg+0x723/0xbe0
[  415.427187][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  415.427187][   T73]      ___sys_sendmsg+0xee/0x170
[  415.427187][   T73]      __sys_sendmsg+0xcd/0x170
[  415.427187][   T73]      do_syscall_64+0xc6/0x1e0
[  415.427187][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  415.427187][   T73] 
[  415.430127][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  415.430640][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  415.430640][   T73]      netdev_get_by_index+0x5e/0x80
[  415.430640][   T73]      fib6_nh_init+0x3d8/0x1580
[  415.430640][   T73]      ip6_route_info_create+0xf18/0x17d0
[  415.430640][   T73]      addrconf_f6i_alloc+0x265/0x560
[  415.430640][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  415.430640][   T73]      addrconf_join_anycast+0x1c0/0x220
[  415.430640][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  415.430640][   T73]      addrconf_dad_completed+0x12b/0xe20
[  415.430640][   T73]      addrconf_dad_begin+0x310/0x670
[  415.430640][   T73]      addrconf_dad_work+0x10b/0xab0
[  415.430640][   T73]      process_one_work+0x84d/0x18a0
[  415.430640][   T73]      worker_thread+0x587/0xd30
[  415.430640][   T73]      kthread+0x28a/0x350
[  415.430640][   T73]      ret_from_fork+0x31/0x70
[  415.430640][   T73]      ret_from_fork_asm+0x1a/0x30
[  415.430640][   T73] 
[  415.433866][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  415.433866][   T73]      netdev_get_by_index+0x5e/0x80
[  415.433866][   T73]      fib6_nh_init+0x3d8/0x1580
[  415.433866][   T73]      ip6_route_info_create+0xf18/0x17d0
[  415.433866][   T73]      ip6_route_add+0x1c/0x140
[  415.433866][   T73]      addrconf_prefix_route+0x2a6/0x430
[  415.433866][   T73]      inet6_addr_add+0x4f8/0xa40
[  415.433866][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  415.433866][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  415.433866][   T73]      netlink_rcv_skb+0x130/0x360
[  415.433866][   T73]      netlink_unicast+0x449/0x710
[  415.433866][   T73]      netlink_sendmsg+0x723/0xbe0
[  415.433866][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  415.433866][   T73]      ___sys_sendmsg+0xee/0x170
[  415.433866][   T73]      __sys_sendmsg+0xcd/0x170
[  415.433866][   T73]      do_syscall_64+0xc6/0x1e0
[  415.433866][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  415.433866][   T73] 
[  415.437156][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  415.437156][   T73]      netdev_get_by_index+0x5e/0x80
[  415.437156][   T73]      fib6_nh_init+0x3d8/0x1580
[  415.437156][   T73]      ip6_route_info_create+0xf18/0x17d0
[  415.437156][   T73]      addrconf_f6i_alloc+0x315/0x560
[  415.437156][   T73]      ipv6_add_addr+0x411/0x2000
[  415.437156][   T73]      inet6_addr_add+0x30e/0xa40
[  415.437156][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  415.437156][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  415.437156][   T73]      netlink_rcv_skb+0x130/0x360
[  415.437156][   T73]      netlink_unicast+0x449/0x710
[  415.437156][   T73]      netlink_sendmsg+0x723/0xbe0
[  415.437156][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  415.437156][   T73]      ___sys_sendmsg+0xee/0x170
[  415.437156][   T73]      __sys_sendmsg+0xcd/0x170
[  415.437156][   T73]      do_syscall_64+0xc6/0x1e0
[  415.437156][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  415.437156][   T73] 
[  415.440458][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  415.440458][   T73]      netdev_get_by_index+0x5e/0x80
[  415.440458][   T73]      fib6_nh_init+0x3d8/0x1580
[  415.440458][   T73]      ip6_route_info_create+0xf18/0x17d0
[  415.440458][   T73]      ip6_route_add+0x1c/0x140
[  415.440458][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  415.440458][   T73]      addrconf_add_dev+0xe2/0x170
[  415.440458][   T73]      inet6_addr_add+0x12f/0xa40
[  415.440458][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  415.440458][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  415.440458][   T73]      netlink_rcv_skb+0x130/0x360
[  415.440458][   T73]      netlink_unicast+0x449/0x710
[  415.440458][   T73]      netlink_sendmsg+0x723/0xbe0
[  415.440458][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  415.440458][   T73]      ___sys_sendmsg+0xee/0x170
[  415.440458][   T73]      __sys_sendmsg+0xcd/0x170
[  415.440458][   T73]      do_syscall_64+0xc6/0x1e0
[  415.440458][   T73] 
[  415.443800][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  415.443800][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  415.443800][   T73]      ipv6_find_idev+0x102/0x170
[  415.443800][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  415.443800][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  415.443800][   T73]      netlink_rcv_skb+0x130/0x360
[  415.443800][   T73]      netlink_unicast+0x449/0x710
[  415.443800][   T73]      netlink_sendmsg+0x723/0xbe0
[  415.443800][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  415.443800][   T73]      ___sys_sendmsg+0xee/0x170
[  415.443800][   T73]      __sys_sendmsg+0xcd/0x170
[  415.443800][   T73]      do_syscall_64+0xc6/0x1e0
[  415.443800][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  415.443800][   T73] 
[  415.446408][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  415.446408][   T73]      neigh_parms_alloc+0x1e5/0x510
[  415.446408][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  415.446408][   T73]      ipv6_find_idev+0x102/0x170
[  415.446408][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  415.446408][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  415.446408][   T73]      netlink_rcv_skb+0x130/0x360
[  415.446408][   T73]      netlink_unicast+0x449/0x710
[  415.446408][   T73]      netlink_sendmsg+0x723/0xbe0
[  415.446408][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  415.446408][   T73]      ___sys_sendmsg+0xee/0x170
[  415.446408][   T73]      __sys_sendmsg+0xcd/0x170
[  415.446408][   T73]      do_syscall_64+0xc6/0x1e0
[  415.446408][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  415.446408][   T73] 
[  415.449372][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  415.449866][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  415.449866][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  415.449866][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  415.449866][   T73]      fib6_nh_init+0xa22/0x1580
[  415.449866][   T73]      ip6_route_info_create+0xf18/0x17d0
[  415.449866][   T73]      ip6_route_add+0x1c/0x140
[  415.449866][   T73]      inet6_rtm_newroute+0x104/0x110
[  415.449866][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  415.449866][   T73]      netlink_rcv_skb+0x130/0x360
[  415.449866][   T73]      netlink_unicast+0x449/0x710
[  415.449866][   T73]      netlink_sendmsg+0x723/0xbe0
[  415.449866][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  415.449866][   T73]      ___sys_sendmsg+0xee/0x170
[  415.449866][   T73]      __sys_sendmsg+0xcd/0x170
[  415.449866][   T73]      do_syscall_64+0xc6/0x1e0
[  415.449866][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  415.449866][   T73] 
[  415.453586][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  415.453586][   T73]      dst_init+0x84/0x4a0
[  415.453586][   T73]      dst_alloc+0x97/0x150
[  415.453586][   T73]      ip6_dst_alloc+0x23/0x90
[  415.453586][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  415.453586][   T73]      ip6_pol_route+0x56f/0x840
[  415.453586][   T73]      fib6_rule_lookup+0x456/0x630
[  415.453586][   T73]      ip6_route_input+0x59c/0xa50
[  415.453586][   T73]      ipv6_rcv+0x397/0x810
[  415.453586][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  415.453586][   T73]      process_backlog+0x101/0x620
[  415.453586][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  415.453586][   T73]      net_rx_action+0x495/0xbe0
[  415.453586][   T73]      __do_softirq+0x1b5/0x7f6
[  415.453586][   T73] 
[  415.456717][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  415.456717][   T73]      netdev_get_by_index+0x5e/0x80
[  415.456717][   T73]      fib6_nh_init+0x3d8/0x1580
[  415.456717][   T73]      ip6_route_info_create+0xf18/0x17d0
[  415.456717][   T73]      ip6_route_add+0x1c/0x140
[  415.456717][   T73]      addrconf_prefix_route+0x2a6/0x430
[  415.456717][   T73]      inet6_addr_add+0x4f8/0xa40
[  415.456717][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  415.456717][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  415.456717][   T73]      netlink_rcv_skb+0x130/0x360
[  415.456717][   T73]      netlink_unicast+0x449/0x710
[  415.456717][   T73]      netlink_sendmsg+0x723/0xbe0
[  415.456717][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  415.456717][   T73]      ___sys_sendmsg+0xee/0x170
[  415.456717][   T73]      __sys_sendmsg+0xcd/0x170
[  415.456717][   T73]      do_syscall_64+0xc6/0x1e0
[  415.456717][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  415.456717][   T73] 
[  415.460565][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  415.460565][   T73]      netdev_get_by_index+0x5e/0x80
[  415.460565][   T73]      fib6_nh_init+0x3d8/0x1580
[  415.460565][   T73]      ip6_route_info_create+0xf18/0x17d0
[  415.460565][   T73]      addrconf_f6i_alloc+0x315/0x560
[  415.460565][   T73]      ipv6_add_addr+0x411/0x2000
[  415.460565][   T73]      inet6_addr_add+0x30e/0xa40
[  415.460565][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  415.460565][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  415.460565][   T73]      netlink_rcv_skb+0x130/0x360
[  415.460565][   T73]      netlink_unicast+0x449/0x710
[  415.460565][   T73]      netlink_sendmsg+0x723/0xbe0
[  415.460565][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  415.460565][   T73]      ___sys_sendmsg+0xee/0x170
[  415.460565][   T73]      __sys_sendmsg+0xcd/0x170
[  415.460565][   T73]      do_syscall_64+0xc6/0x1e0
[  415.460565][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  415.460565][   T73] 
[  415.464336][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  415.464336][   T73]      netdev_get_by_index+0x5e/0x80
[  415.464336][   T73]      fib6_nh_init+0x3d8/0x1580
[  415.464336][   T73]      ip6_route_info_create+0xf18/0x17d0
[  415.464336][   T73]      ip6_route_add+0x1c/0x140
[  415.464336][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  415.464336][   T73]      addrconf_add_dev+0xe2/0x170
[  415.464336][   T73]      inet6_addr_add+0x12f/0xa40
[  415.464336][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  415.464336][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  415.464336][   T73]      netlink_rcv_skb+0x130/0x360
[  415.464336][   T73]      netlink_unicast+0x449/0x710
[  415.464336][   T73]      netlink_sendmsg+0x723/0xbe0
[  415.464336][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  415.464336][   T73]      ___sys_sendmsg+0xee/0x170
[  415.464336][   T73]      __sys_sendmsg+0xcd/0x170
[  415.464336][   T73]      do_syscall_64+0xc6/0x1e0
[  415.464336][   T73] 
[  415.467976][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  415.467976][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  415.467976][   T73]      ipv6_find_idev+0x102/0x170
[  415.467976][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  415.467976][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  415.467976][   T73]      netlink_rcv_skb+0x130/0x360
[  415.467976][   T73]      netlink_unicast+0x449/0x710
[  415.467976][   T73]      netlink_sendmsg+0x723/0xbe0
[  415.467976][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  415.467976][   T73]      ___sys_sendmsg+0xee/0x170
[  415.467976][   T73]      __sys_sendmsg+0xcd/0x170
[  415.467976][   T73]      do_syscall_64+0xc6/0x1e0
[  415.467976][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  415.467976][   T73] 
[  415.470949][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  415.470949][   T73]      neigh_parms_alloc+0x1e5/0x510
[  415.470949][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  415.470949][   T73]      ipv6_find_idev+0x102/0x170
[  415.470949][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  415.470949][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  415.470949][   T73]      netlink_rcv_skb+0x130/0x360
[  415.470949][   T73]      netlink_unicast+0x449/0x710
[  415.470949][   T73]      netlink_sendmsg+0x723/0xbe0
[  415.470949][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  415.470949][   T73]      ___sys_sendmsg+0xee/0x170
[  415.470949][   T73]      __sys_sendmsg+0xcd/0x170
[  415.470949][   T73]      do_syscall_64+0xc6/0x1e0
[  415.470949][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  415.470949][   T73] 
[  415.474288][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  415.475605][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  415.475605][   T73]      netdev_get_by_index+0x5e/0x80
[  415.475605][   T73]      fib6_nh_init+0x3d8/0x1580
[  415.475605][   T73]      ip6_route_info_create+0xf18/0x17d0
[  415.475605][   T73]      addrconf_f6i_alloc+0x265/0x560
[  415.475605][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  415.475605][   T73]      addrconf_join_anycast+0x1c0/0x220
[  415.475605][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  415.475605][   T73]      addrconf_dad_completed+0x12b/0xe20
[  415.475605][   T73]      addrconf_dad_begin+0x310/0x670
[  415.475605][   T73]      addrconf_dad_work+0x10b/0xab0
[  415.475605][   T73]      process_one_work+0x84d/0x18a0
[  415.475605][   T73]      worker_thread+0x587/0xd30
[  415.475605][   T73]      kthread+0x28a/0x350
[  415.475605][   T73]      ret_from_fork+0x31/0x70
[  415.475605][   T73]      ret_from_fork_asm+0x1a/0x30
[  415.475605][   T73] 
[  415.478863][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  415.478863][   T73]      netdev_get_by_index+0x5e/0x80
[  415.478863][   T73]      fib6_nh_init+0x3d8/0x1580
[  415.478863][   T73]      ip6_route_info_create+0xf18/0x17d0
[  415.478863][   T73]      ip6_route_add+0x1c/0x140
[  415.478863][   T73]      addrconf_prefix_route+0x2a6/0x430
[  415.478863][   T73]      inet6_addr_add+0x4f8/0xa40
[  415.478863][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  415.478863][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  415.478863][   T73]      netlink_rcv_skb+0x130/0x360
[  415.478863][   T73]      netlink_unicast+0x449/0x710
[  415.478863][   T73]      netlink_sendmsg+0x723/0xbe0
[  415.478863][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  415.478863][   T73]      ___sys_sendmsg+0xee/0x170
[  415.478863][   T73]      __sys_sendmsg+0xcd/0x170
[  415.478863][   T73]      do_syscall_64+0xc6/0x1e0
[  415.478863][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  415.478863][   T73] 
[  415.482474][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  415.482474][   T73]      netdev_get_by_index+0x5e/0x80
[  415.482474][   T73]      fib6_nh_init+0x3d8/0x1580
[  415.482474][   T73]      ip6_route_info_create+0xf18/0x17d0
[  415.482474][   T73]      addrconf_f6i_alloc+0x315/0x560
[  415.482474][   T73]      ipv6_add_addr+0x411/0x2000
[  415.482474][   T73]      inet6_addr_add+0x30e/0xa40
[  415.482474][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  415.482474][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  415.482474][   T73]      netlink_rcv_skb+0x130/0x360
[  415.482474][   T73]      netlink_unicast+0x449/0x710
[  415.482474][   T73]      netlink_sendmsg+0x723/0xbe0
[  415.482474][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  415.482474][   T73]      ___sys_sendmsg+0xee/0x170
[  415.482474][   T73]      __sys_sendmsg+0xcd/0x170
[  415.482474][   T73]      do_syscall_64+0xc6/0x1e0
[  415.482474][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  415.482474][   T73] 
[  415.486303][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  415.486303][   T73]      netdev_get_by_index+0x5e/0x80
[  415.486303][   T73]      fib6_nh_init+0x3d8/0x1580
[  415.486303][   T73]      ip6_route_info_create+0xf18/0x17d0
[  415.486303][   T73]      ip6_route_add+0x1c/0x140
[  415.486303][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  415.486303][   T73]      addrconf_add_dev+0xe2/0x170
[  415.486303][   T73]      inet6_addr_add+0x12f/0xa40
[  415.486303][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  415.486303][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  415.486303][   T73]      netlink_rcv_skb+0x130/0x360
[  415.486303][   T73]      netlink_unicast+0x449/0x710
[  415.486303][   T73]      netlink_sendmsg+0x723/0xbe0
[  415.486303][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  415.486303][   T73]      ___sys_sendmsg+0xee/0x170
[  415.486303][   T73]      __sys_sendmsg+0xcd/0x170
[  415.486303][   T73]      do_syscall_64+0xc6/0x1e0
[  415.486303][   T73] 
[  415.490054][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  415.490054][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  415.490054][   T73]      ipv6_find_idev+0x102/0x170
[  415.490054][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  415.490054][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  415.490054][   T73]      netlink_rcv_skb+0x130/0x360
[  415.490054][   T73]      netlink_unicast+0x449/0x710
[  415.490054][   T73]      netlink_sendmsg+0x723/0xbe0
[  415.490054][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  415.490054][   T73]      ___sys_sendmsg+0xee/0x170
[  415.490054][   T73]      __sys_sendmsg+0xcd/0x170
[  415.490054][   T73]      do_syscall_64+0xc6/0x1e0
[  415.490054][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  415.490054][   T73] 
[  415.492924][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  415.492924][   T73]      neigh_parms_alloc+0x1e5/0x510
[  415.492924][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  415.492924][   T73]      ipv6_find_idev+0x102/0x170
[  415.492924][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  415.492924][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  415.492924][   T73]      netlink_rcv_skb+0x130/0x360
[  415.492924][   T73]      netlink_unicast+0x449/0x710
[  415.492924][   T73]      netlink_sendmsg+0x723/0xbe0
[  415.492924][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  415.492924][   T73]      ___sys_sendmsg+0xee/0x170
[  415.492924][   T73]      __sys_sendmsg+0xcd/0x170
[  415.492924][   T73]      do_syscall_64+0xc6/0x1e0
[  415.492924][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  415.492924][   T73] 
[  425.751816][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  425.752446][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  425.752446][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  425.752446][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  425.752446][   T73]      fib6_nh_init+0xa22/0x1580
[  425.752446][   T73]      ip6_route_info_create+0xf18/0x17d0
[  425.752446][   T73]      ip6_route_add+0x1c/0x140
[  425.752446][   T73]      inet6_rtm_newroute+0x104/0x110
[  425.752446][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  425.752446][   T73]      netlink_rcv_skb+0x130/0x360
[  425.752446][   T73]      netlink_unicast+0x449/0x710
[  425.752446][   T73]      netlink_sendmsg+0x723/0xbe0
[  425.752446][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  425.752446][   T73]      ___sys_sendmsg+0xee/0x170
[  425.752446][   T73]      __sys_sendmsg+0xcd/0x170
[  425.752446][   T73]      do_syscall_64+0xc6/0x1e0
[  425.752446][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  425.752446][   T73] 
[  425.755533][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  425.755533][   T73]      dst_init+0x84/0x4a0
[  425.755533][   T73]      dst_alloc+0x97/0x150
[  425.755533][   T73]      ip6_dst_alloc+0x23/0x90
[  425.755533][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  425.755533][   T73]      ip6_pol_route+0x56f/0x840
[  425.755533][   T73]      fib6_rule_lookup+0x456/0x630
[  425.755533][   T73]      ip6_route_input+0x59c/0xa50
[  425.755533][   T73]      ipv6_rcv+0x397/0x810
[  425.755533][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  425.755533][   T73]      process_backlog+0x101/0x620
[  425.755533][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  425.755533][   T73]      net_rx_action+0x495/0xbe0
[  425.755533][   T73]      __do_softirq+0x1b5/0x7f6
[  425.755533][   T73] 
[  425.758004][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  425.758004][   T73]      netdev_get_by_index+0x5e/0x80
[  425.758004][   T73]      fib6_nh_init+0x3d8/0x1580
[  425.758004][   T73]      ip6_route_info_create+0xf18/0x17d0
[  425.758004][   T73]      ip6_route_add+0x1c/0x140
[  425.758004][   T73]      addrconf_prefix_route+0x2a6/0x430
[  425.758004][   T73]      inet6_addr_add+0x4f8/0xa40
[  425.758004][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  425.758004][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  425.758004][   T73]      netlink_rcv_skb+0x130/0x360
[  425.758004][   T73]      netlink_unicast+0x449/0x710
[  425.758004][   T73]      netlink_sendmsg+0x723/0xbe0
[  425.758004][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  425.758004][   T73]      ___sys_sendmsg+0xee/0x170
[  425.758004][   T73]      __sys_sendmsg+0xcd/0x170
[  425.758004][   T73]      do_syscall_64+0xc6/0x1e0
[  425.758004][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  425.758004][   T73] 
[  425.761057][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  425.761057][   T73]      netdev_get_by_index+0x5e/0x80
[  425.761057][   T73]      fib6_nh_init+0x3d8/0x1580
[  425.761057][   T73]      ip6_route_info_create+0xf18/0x17d0
[  425.761057][   T73]      addrconf_f6i_alloc+0x315/0x560
[  425.761057][   T73]      ipv6_add_addr+0x411/0x2000
[  425.761057][   T73]      inet6_addr_add+0x30e/0xa40
[  425.761057][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  425.761057][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  425.761057][   T73]      netlink_rcv_skb+0x130/0x360
[  425.761057][   T73]      netlink_unicast+0x449/0x710
[  425.761057][   T73]      netlink_sendmsg+0x723/0xbe0
[  425.761057][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  425.761057][   T73]      ___sys_sendmsg+0xee/0x170
[  425.761057][   T73]      __sys_sendmsg+0xcd/0x170
[  425.761057][   T73]      do_syscall_64+0xc6/0x1e0
[  425.761057][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  425.761057][   T73] 
[  425.764280][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  425.764280][   T73]      netdev_get_by_index+0x5e/0x80
[  425.764280][   T73]      fib6_nh_init+0x3d8/0x1580
[  425.764280][   T73]      ip6_route_info_create+0xf18/0x17d0
[  425.764280][   T73]      ip6_route_add+0x1c/0x140
[  425.764280][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  425.764280][   T73]      addrconf_add_dev+0xe2/0x170
[  425.764280][   T73]      inet6_addr_add+0x12f/0xa40
[  425.764280][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  425.764280][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  425.764280][   T73]      netlink_rcv_skb+0x130/0x360
[  425.764280][   T73]      netlink_unicast+0x449/0x710
[  425.764280][   T73]      netlink_sendmsg+0x723/0xbe0
[  425.764280][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  425.764280][   T73]      ___sys_sendmsg+0xee/0x170
[  425.764280][   T73]      __sys_sendmsg+0xcd/0x170
[  425.764280][   T73]      do_syscall_64+0xc6/0x1e0
[  425.764280][   T73] 
[  425.766320][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  425.766320][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  425.766320][   T73]      ipv6_find_idev+0x102/0x170
[  425.766320][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  425.766320][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  425.766320][   T73]      netlink_rcv_skb+0x130/0x360
[  425.766320][   T73]      netlink_unicast+0x449/0x710
[  425.766320][   T73]      netlink_sendmsg+0x723/0xbe0
[  425.766320][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  425.766320][   T73]      ___sys_sendmsg+0xee/0x170
[  425.766320][   T73]      __sys_sendmsg+0xcd/0x170
[  425.766320][   T73]      do_syscall_64+0xc6/0x1e0
[  425.766320][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  425.766320][   T73] 
[  425.767888][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  425.767888][   T73]      neigh_parms_alloc+0x1e5/0x510
[  425.767888][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  425.767888][   T73]      ipv6_find_idev+0x102/0x170
[  425.767888][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  425.767888][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  425.767888][   T73]      netlink_rcv_skb+0x130/0x360
[  425.767888][   T73]      netlink_unicast+0x449/0x710
[  425.767888][   T73]      netlink_sendmsg+0x723/0xbe0
[  425.767888][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  425.767888][   T73]      ___sys_sendmsg+0xee/0x170
[  425.767888][   T73]      __sys_sendmsg+0xcd/0x170
[  425.767888][   T73]      do_syscall_64+0xc6/0x1e0
[  425.767888][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  425.767888][   T73] 
[  425.769693][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  425.769990][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  425.769990][   T73]      netdev_get_by_index+0x5e/0x80
[  425.769990][   T73]      fib6_nh_init+0x3d8/0x1580
[  425.769990][   T73]      ip6_route_info_create+0xf18/0x17d0
[  425.769990][   T73]      addrconf_f6i_alloc+0x265/0x560
[  425.769990][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  425.769990][   T73]      addrconf_join_anycast+0x1c0/0x220
[  425.769990][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  425.769990][   T73]      addrconf_dad_completed+0x12b/0xe20
[  425.769990][   T73]      addrconf_dad_begin+0x310/0x670
[  425.769990][   T73]      addrconf_dad_work+0x10b/0xab0
[  425.769990][   T73]      process_one_work+0x84d/0x18a0
[  425.769990][   T73]      worker_thread+0x587/0xd30
[  425.769990][   T73]      kthread+0x28a/0x350
[  425.769990][   T73]      ret_from_fork+0x31/0x70
[  425.769990][   T73]      ret_from_fork_asm+0x1a/0x30
[  425.769990][   T73] 
[  425.771943][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  425.771943][   T73]      netdev_get_by_index+0x5e/0x80
[  425.771943][   T73]      fib6_nh_init+0x3d8/0x1580
[  425.771943][   T73]      ip6_route_info_create+0xf18/0x17d0
[  425.771943][   T73]      ip6_route_add+0x1c/0x140
[  425.771943][   T73]      addrconf_prefix_route+0x2a6/0x430
[  425.771943][   T73]      inet6_addr_add+0x4f8/0xa40
[  425.771943][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  425.771943][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  425.771943][   T73]      netlink_rcv_skb+0x130/0x360
[  425.771943][   T73]      netlink_unicast+0x449/0x710
[  425.771943][   T73]      netlink_sendmsg+0x723/0xbe0
[  425.771943][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  425.771943][   T73]      ___sys_sendmsg+0xee/0x170
[  425.771943][   T73]      __sys_sendmsg+0xcd/0x170
[  425.771943][   T73]      do_syscall_64+0xc6/0x1e0
[  425.771943][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  425.771943][   T73] 
[  425.774008][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  425.774008][   T73]      netdev_get_by_index+0x5e/0x80
[  425.774008][   T73]      fib6_nh_init+0x3d8/0x1580
[  425.774008][   T73]      ip6_route_info_create+0xf18/0x17d0
[  425.774008][   T73]      addrconf_f6i_alloc+0x315/0x560
[  425.774008][   T73]      ipv6_add_addr+0x411/0x2000
[  425.774008][   T73]      inet6_addr_add+0x30e/0xa40
[  425.774008][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  425.774008][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  425.774008][   T73]      netlink_rcv_skb+0x130/0x360
[  425.774008][   T73]      netlink_unicast+0x449/0x710
[  425.774008][   T73]      netlink_sendmsg+0x723/0xbe0
[  425.774008][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  425.774008][   T73]      ___sys_sendmsg+0xee/0x170
[  425.774008][   T73]      __sys_sendmsg+0xcd/0x170
[  425.774008][   T73]      do_syscall_64+0xc6/0x1e0
[  425.774008][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  425.774008][   T73] 
[  425.776049][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  425.776049][   T73]      netdev_get_by_index+0x5e/0x80
[  425.776049][   T73]      fib6_nh_init+0x3d8/0x1580
[  425.776049][   T73]      ip6_route_info_create+0xf18/0x17d0
[  425.776049][   T73]      ip6_route_add+0x1c/0x140
[  425.776049][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  425.776049][   T73]      addrconf_add_dev+0xe2/0x170
[  425.776049][   T73]      inet6_addr_add+0x12f/0xa40
[  425.776049][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  425.776049][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  425.776049][   T73]      netlink_rcv_skb+0x130/0x360
[  425.776049][   T73]      netlink_unicast+0x449/0x710
[  425.776049][   T73]      netlink_sendmsg+0x723/0xbe0
[  425.776049][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  425.776049][   T73]      ___sys_sendmsg+0xee/0x170
[  425.776049][   T73]      __sys_sendmsg+0xcd/0x170
[  425.776049][   T73]      do_syscall_64+0xc6/0x1e0
[  425.776049][   T73] 
[  425.778047][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  425.778047][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  425.778047][   T73]      ipv6_find_idev+0x102/0x170
[  425.778047][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  425.778047][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  425.778047][   T73]      netlink_rcv_skb+0x130/0x360
[  425.778047][   T73]      netlink_unicast+0x449/0x710
[  425.778047][   T73]      netlink_sendmsg+0x723/0xbe0
[  425.778047][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  425.778047][   T73]      ___sys_sendmsg+0xee/0x170
[  425.778047][   T73]      __sys_sendmsg+0xcd/0x170
[  425.778047][   T73]      do_syscall_64+0xc6/0x1e0
[  425.778047][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  425.778047][   T73] 
[  425.779621][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  425.779621][   T73]      neigh_parms_alloc+0x1e5/0x510
[  425.779621][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  425.779621][   T73]      ipv6_find_idev+0x102/0x170
[  425.779621][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  425.779621][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  425.779621][   T73]      netlink_rcv_skb+0x130/0x360
[  425.779621][   T73]      netlink_unicast+0x449/0x710
[  425.779621][   T73]      netlink_sendmsg+0x723/0xbe0
[  425.779621][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  425.779621][   T73]      ___sys_sendmsg+0xee/0x170
[  425.779621][   T73]      __sys_sendmsg+0xcd/0x170
[  425.779621][   T73]      do_syscall_64+0xc6/0x1e0
[  425.779621][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  425.779621][   T73] 
[  425.781380][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  425.781663][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  425.781663][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  425.781663][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  425.781663][   T73]      fib6_nh_init+0xa22/0x1580
[  425.781663][   T73]      ip6_route_info_create+0xf18/0x17d0
[  425.781663][   T73]      ip6_route_add+0x1c/0x140
[  425.781663][   T73]      inet6_rtm_newroute+0x104/0x110
[  425.781663][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  425.781663][   T73]      netlink_rcv_skb+0x130/0x360
[  425.781663][   T73]      netlink_unicast+0x449/0x710
[  425.781663][   T73]      netlink_sendmsg+0x723/0xbe0
[  425.781663][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  425.781663][   T73]      ___sys_sendmsg+0xee/0x170
[  425.781663][   T73]      __sys_sendmsg+0xcd/0x170
[  425.781663][   T73]      do_syscall_64+0xc6/0x1e0
[  425.781663][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  425.781663][   T73] 
[  425.784102][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  425.784102][   T73]      dst_init+0x84/0x4a0
[  425.784102][   T73]      dst_alloc+0x97/0x150
[  425.784102][   T73]      ip6_dst_alloc+0x23/0x90
[  425.784102][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  425.784102][   T73]      ip6_pol_route+0x56f/0x840
[  425.784102][   T73]      fib6_rule_lookup+0x456/0x630
[  425.784102][   T73]      ip6_route_input+0x59c/0xa50
[  425.784102][   T73]      ipv6_rcv+0x397/0x810
[  425.784102][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  425.784102][   T73]      process_backlog+0x101/0x620
[  425.784102][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  425.784102][   T73]      net_rx_action+0x495/0xbe0
[  425.784102][   T73]      __do_softirq+0x1b5/0x7f6
[  425.784102][   T73] 
[  425.786023][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  425.786023][   T73]      netdev_get_by_index+0x5e/0x80
[  425.786023][   T73]      fib6_nh_init+0x3d8/0x1580
[  425.786023][   T73]      ip6_route_info_create+0xf18/0x17d0
[  425.786023][   T73]      ip6_route_add+0x1c/0x140
[  425.786023][   T73]      addrconf_prefix_route+0x2a6/0x430
[  425.786023][   T73]      inet6_addr_add+0x4f8/0xa40
[  425.786023][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  425.786023][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  425.786023][   T73]      netlink_rcv_skb+0x130/0x360
[  425.786023][   T73]      netlink_unicast+0x449/0x710
[  425.786023][   T73]      netlink_sendmsg+0x723/0xbe0
[  425.786023][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  425.786023][   T73]      ___sys_sendmsg+0xee/0x170
[  425.786023][   T73]      __sys_sendmsg+0xcd/0x170
[  425.786023][   T73]      do_syscall_64+0xc6/0x1e0
[  425.786023][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  425.786023][   T73] 
[  425.788459][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  425.788459][   T73]      netdev_get_by_index+0x5e/0x80
[  425.788459][   T73]      fib6_nh_init+0x3d8/0x1580
[  425.788459][   T73]      ip6_route_info_create+0xf18/0x17d0
[  425.788459][   T73]      addrconf_f6i_alloc+0x315/0x560
[  425.788459][   T73]      ipv6_add_addr+0x411/0x2000
[  425.788459][   T73]      inet6_addr_add+0x30e/0xa40
[  425.788459][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  425.788459][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  425.788459][   T73]      netlink_rcv_skb+0x130/0x360
[  425.788459][   T73]      netlink_unicast+0x449/0x710
[  425.788459][   T73]      netlink_sendmsg+0x723/0xbe0
[  425.788459][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  425.788459][   T73]      ___sys_sendmsg+0xee/0x170
[  425.788459][   T73]      __sys_sendmsg+0xcd/0x170
[  425.788459][   T73]      do_syscall_64+0xc6/0x1e0
[  425.788459][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  425.788459][   T73] 
[  425.790713][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  425.790713][   T73]      netdev_get_by_index+0x5e/0x80
[  425.790713][   T73]      fib6_nh_init+0x3d8/0x1580
[  425.790713][   T73]      ip6_route_info_create+0xf18/0x17d0
[  425.790713][   T73]      ip6_route_add+0x1c/0x140
[  425.790713][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  425.790713][   T73]      addrconf_add_dev+0xe2/0x170
[  425.790713][   T73]      inet6_addr_add+0x12f/0xa40
[  425.790713][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  425.790713][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  425.790713][   T73]      netlink_rcv_skb+0x130/0x360
[  425.790713][   T73]      netlink_unicast+0x449/0x710
[  425.790713][   T73]      netlink_sendmsg+0x723/0xbe0
[  425.790713][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  425.790713][   T73]      ___sys_sendmsg+0xee/0x170
[  425.790713][   T73]      __sys_sendmsg+0xcd/0x170
[  425.790713][   T73]      do_syscall_64+0xc6/0x1e0
[  425.790713][   T73] 
[  425.792876][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  425.792876][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  425.792876][   T73]      ipv6_find_idev+0x102/0x170
[  425.792876][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  425.792876][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  425.792876][   T73]      netlink_rcv_skb+0x130/0x360
[  425.792876][   T73]      netlink_unicast+0x449/0x710
[  425.792876][   T73]      netlink_sendmsg+0x723/0xbe0
[  425.792876][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  425.792876][   T73]      ___sys_sendmsg+0xee/0x170
[  425.792876][   T73]      __sys_sendmsg+0xcd/0x170
[  425.792876][   T73]      do_syscall_64+0xc6/0x1e0
[  425.792876][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  425.792876][   T73] 
[  425.794656][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  425.794656][   T73]      neigh_parms_alloc+0x1e5/0x510
[  425.794656][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  425.794656][   T73]      ipv6_find_idev+0x102/0x170
[  425.794656][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  425.794656][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  425.794656][   T73]      netlink_rcv_skb+0x130/0x360
[  425.794656][   T73]      netlink_unicast+0x449/0x710
[  425.794656][   T73]      netlink_sendmsg+0x723/0xbe0
[  425.794656][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  425.794656][   T73]      ___sys_sendmsg+0xee/0x170
[  425.794656][   T73]      __sys_sendmsg+0xcd/0x170
[  425.794656][   T73]      do_syscall_64+0xc6/0x1e0
[  425.794656][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  425.794656][   T73] 
[  425.796623][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  425.797355][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  425.797355][   T73]      netdev_get_by_index+0x5e/0x80
[  425.797355][   T73]      fib6_nh_init+0x3d8/0x1580
[  425.797355][   T73]      ip6_route_info_create+0xf18/0x17d0
[  425.797355][   T73]      addrconf_f6i_alloc+0x265/0x560
[  425.797355][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  425.797355][   T73]      addrconf_join_anycast+0x1c0/0x220
[  425.797355][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  425.797355][   T73]      addrconf_dad_completed+0x12b/0xe20
[  425.797355][   T73]      addrconf_dad_begin+0x310/0x670
[  425.797355][   T73]      addrconf_dad_work+0x10b/0xab0
[  425.797355][   T73]      process_one_work+0x84d/0x18a0
[  425.797355][   T73]      worker_thread+0x587/0xd30
[  425.797355][   T73]      kthread+0x28a/0x350
[  425.797355][   T73]      ret_from_fork+0x31/0x70
[  425.797355][   T73]      ret_from_fork_asm+0x1a/0x30
[  425.797355][   T73] 
[  425.799273][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  425.799273][   T73]      netdev_get_by_index+0x5e/0x80
[  425.799273][   T73]      fib6_nh_init+0x3d8/0x1580
[  425.799273][   T73]      ip6_route_info_create+0xf18/0x17d0
[  425.799273][   T73]      ip6_route_add+0x1c/0x140
[  425.799273][   T73]      addrconf_prefix_route+0x2a6/0x430
[  425.799273][   T73]      inet6_addr_add+0x4f8/0xa40
[  425.799273][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  425.799273][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  425.799273][   T73]      netlink_rcv_skb+0x130/0x360
[  425.799273][   T73]      netlink_unicast+0x449/0x710
[  425.799273][   T73]      netlink_sendmsg+0x723/0xbe0
[  425.799273][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  425.799273][   T73]      ___sys_sendmsg+0xee/0x170
[  425.799273][   T73]      __sys_sendmsg+0xcd/0x170
[  425.799273][   T73]      do_syscall_64+0xc6/0x1e0
[  425.799273][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  425.799273][   T73] 
[  425.801466][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  425.801466][   T73]      netdev_get_by_index+0x5e/0x80
[  425.801466][   T73]      fib6_nh_init+0x3d8/0x1580
[  425.801466][   T73]      ip6_route_info_create+0xf18/0x17d0
[  425.801466][   T73]      addrconf_f6i_alloc+0x315/0x560
[  425.801466][   T73]      ipv6_add_addr+0x411/0x2000
[  425.801466][   T73]      inet6_addr_add+0x30e/0xa40
[  425.801466][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  425.801466][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  425.801466][   T73]      netlink_rcv_skb+0x130/0x360
[  425.801466][   T73]      netlink_unicast+0x449/0x710
[  425.801466][   T73]      netlink_sendmsg+0x723/0xbe0
[  425.801466][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  425.801466][   T73]      ___sys_sendmsg+0xee/0x170
[  425.801466][   T73]      __sys_sendmsg+0xcd/0x170
[  425.801466][   T73]      do_syscall_64+0xc6/0x1e0
[  425.801466][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  425.801466][   T73] 
[  425.803673][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  425.803673][   T73]      netdev_get_by_index+0x5e/0x80
[  425.803673][   T73]      fib6_nh_init+0x3d8/0x1580
[  425.803673][   T73]      ip6_route_info_create+0xf18/0x17d0
[  425.803673][   T73]      ip6_route_add+0x1c/0x140
[  425.803673][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  425.803673][   T73]      addrconf_add_dev+0xe2/0x170
[  425.803673][   T73]      inet6_addr_add+0x12f/0xa40
[  425.803673][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  425.803673][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  425.803673][   T73]      netlink_rcv_skb+0x130/0x360
[  425.803673][   T73]      netlink_unicast+0x449/0x710
[  425.803673][   T73]      netlink_sendmsg+0x723/0xbe0
[  425.803673][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  425.803673][   T73]      ___sys_sendmsg+0xee/0x170
[  425.803673][   T73]      __sys_sendmsg+0xcd/0x170
[  425.803673][   T73]      do_syscall_64+0xc6/0x1e0
[  425.803673][   T73] 
[  425.805898][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  425.805898][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  425.805898][   T73]      ipv6_find_idev+0x102/0x170
[  425.805898][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  425.805898][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  425.805898][   T73]      netlink_rcv_skb+0x130/0x360
[  425.805898][   T73]      netlink_unicast+0x449/0x710
[  425.805898][   T73]      netlink_sendmsg+0x723/0xbe0
[  425.805898][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  425.805898][   T73]      ___sys_sendmsg+0xee/0x170
[  425.805898][   T73]      __sys_sendmsg+0xcd/0x170
[  425.805898][   T73]      do_syscall_64+0xc6/0x1e0
[  425.805898][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  425.805898][   T73] 
[  425.807657][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  425.807657][   T73]      neigh_parms_alloc+0x1e5/0x510
[  425.807657][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  425.807657][   T73]      ipv6_find_idev+0x102/0x170
[  425.807657][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  425.807657][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  425.807657][   T73]      netlink_rcv_skb+0x130/0x360
[  425.807657][   T73]      netlink_unicast+0x449/0x710
[  425.807657][   T73]      netlink_sendmsg+0x723/0xbe0
[  425.807657][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  425.807657][   T73]      ___sys_sendmsg+0xee/0x170
[  425.807657][   T73]      __sys_sendmsg+0xcd/0x170
[  425.807657][   T73]      do_syscall_64+0xc6/0x1e0
[  425.807657][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  425.807657][   T73] 
[  435.871774][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  435.872427][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  435.872427][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  435.872427][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  435.872427][   T73]      fib6_nh_init+0xa22/0x1580
[  435.872427][   T73]      ip6_route_info_create+0xf18/0x17d0
[  435.872427][   T73]      ip6_route_add+0x1c/0x140
[  435.872427][   T73]      inet6_rtm_newroute+0x104/0x110
[  435.872427][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  435.872427][   T73]      netlink_rcv_skb+0x130/0x360
[  435.872427][   T73]      netlink_unicast+0x449/0x710
[  435.872427][   T73]      netlink_sendmsg+0x723/0xbe0
[  435.872427][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  435.872427][   T73]      ___sys_sendmsg+0xee/0x170
[  435.872427][   T73]      __sys_sendmsg+0xcd/0x170
[  435.872427][   T73]      do_syscall_64+0xc6/0x1e0
[  435.872427][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  435.872427][   T73] 
[  435.875725][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  435.875725][   T73]      dst_init+0x84/0x4a0
[  435.875725][   T73]      dst_alloc+0x97/0x150
[  435.875725][   T73]      ip6_dst_alloc+0x23/0x90
[  435.875725][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  435.875725][   T73]      ip6_pol_route+0x56f/0x840
[  435.875725][   T73]      fib6_rule_lookup+0x456/0x630
[  435.875725][   T73]      ip6_route_input+0x59c/0xa50
[  435.875725][   T73]      ipv6_rcv+0x397/0x810
[  435.875725][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  435.875725][   T73]      process_backlog+0x101/0x620
[  435.875725][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  435.875725][   T73]      net_rx_action+0x495/0xbe0
[  435.875725][   T73]      __do_softirq+0x1b5/0x7f6
[  435.875725][   T73] 
[  435.878542][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  435.878542][   T73]      netdev_get_by_index+0x5e/0x80
[  435.878542][   T73]      fib6_nh_init+0x3d8/0x1580
[  435.878542][   T73]      ip6_route_info_create+0xf18/0x17d0
[  435.878542][   T73]      ip6_route_add+0x1c/0x140
[  435.878542][   T73]      addrconf_prefix_route+0x2a6/0x430
[  435.878542][   T73]      inet6_addr_add+0x4f8/0xa40
[  435.878542][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  435.878542][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  435.878542][   T73]      netlink_rcv_skb+0x130/0x360
[  435.878542][   T73]      netlink_unicast+0x449/0x710
[  435.878542][   T73]      netlink_sendmsg+0x723/0xbe0
[  435.878542][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  435.878542][   T73]      ___sys_sendmsg+0xee/0x170
[  435.878542][   T73]      __sys_sendmsg+0xcd/0x170
[  435.878542][   T73]      do_syscall_64+0xc6/0x1e0
[  435.878542][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  435.878542][   T73] 
[  435.881971][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  435.881971][   T73]      netdev_get_by_index+0x5e/0x80
[  435.881971][   T73]      fib6_nh_init+0x3d8/0x1580
[  435.881971][   T73]      ip6_route_info_create+0xf18/0x17d0
[  435.881971][   T73]      addrconf_f6i_alloc+0x315/0x560
[  435.881971][   T73]      ipv6_add_addr+0x411/0x2000
[  435.881971][   T73]      inet6_addr_add+0x30e/0xa40
[  435.881971][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  435.881971][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  435.881971][   T73]      netlink_rcv_skb+0x130/0x360
[  435.881971][   T73]      netlink_unicast+0x449/0x710
[  435.881971][   T73]      netlink_sendmsg+0x723/0xbe0
[  435.881971][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  435.881971][   T73]      ___sys_sendmsg+0xee/0x170
[  435.881971][   T73]      __sys_sendmsg+0xcd/0x170
[  435.881971][   T73]      do_syscall_64+0xc6/0x1e0
[  435.881971][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  435.881971][   T73] 
[  435.885430][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  435.885430][   T73]      netdev_get_by_index+0x5e/0x80
[  435.885430][   T73]      fib6_nh_init+0x3d8/0x1580
[  435.885430][   T73]      ip6_route_info_create+0xf18/0x17d0
[  435.885430][   T73]      ip6_route_add+0x1c/0x140
[  435.885430][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  435.885430][   T73]      addrconf_add_dev+0xe2/0x170
[  435.885430][   T73]      inet6_addr_add+0x12f/0xa40
[  435.885430][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  435.885430][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  435.885430][   T73]      netlink_rcv_skb+0x130/0x360
[  435.885430][   T73]      netlink_unicast+0x449/0x710
[  435.885430][   T73]      netlink_sendmsg+0x723/0xbe0
[  435.885430][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  435.885430][   T73]      ___sys_sendmsg+0xee/0x170
[  435.885430][   T73]      __sys_sendmsg+0xcd/0x170
[  435.885430][   T73]      do_syscall_64+0xc6/0x1e0
[  435.885430][   T73] 
[  435.888821][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  435.888821][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  435.888821][   T73]      ipv6_find_idev+0x102/0x170
[  435.888821][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  435.888821][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  435.888821][   T73]      netlink_rcv_skb+0x130/0x360
[  435.888821][   T73]      netlink_unicast+0x449/0x710
[  435.888821][   T73]      netlink_sendmsg+0x723/0xbe0
[  435.888821][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  435.888821][   T73]      ___sys_sendmsg+0xee/0x170
[  435.888821][   T73]      __sys_sendmsg+0xcd/0x170
[  435.888821][   T73]      do_syscall_64+0xc6/0x1e0
[  435.888821][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  435.888821][   T73] 
[  435.891453][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  435.891453][   T73]      neigh_parms_alloc+0x1e5/0x510
[  435.891453][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  435.891453][   T73]      ipv6_find_idev+0x102/0x170
[  435.891453][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  435.891453][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  435.891453][   T73]      netlink_rcv_skb+0x130/0x360
[  435.891453][   T73]      netlink_unicast+0x449/0x710
[  435.891453][   T73]      netlink_sendmsg+0x723/0xbe0
[  435.891453][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  435.891453][   T73]      ___sys_sendmsg+0xee/0x170
[  435.891453][   T73]      __sys_sendmsg+0xcd/0x170
[  435.891453][   T73]      do_syscall_64+0xc6/0x1e0
[  435.891453][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  435.891453][   T73] 
[  435.894342][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  435.894823][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  435.894823][   T73]      netdev_get_by_index+0x5e/0x80
[  435.894823][   T73]      fib6_nh_init+0x3d8/0x1580
[  435.894823][   T73]      ip6_route_info_create+0xf18/0x17d0
[  435.894823][   T73]      addrconf_f6i_alloc+0x265/0x560
[  435.894823][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  435.894823][   T73]      addrconf_join_anycast+0x1c0/0x220
[  435.894823][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  435.894823][   T73]      addrconf_dad_completed+0x12b/0xe20
[  435.894823][   T73]      addrconf_dad_begin+0x310/0x670
[  435.894823][   T73]      addrconf_dad_work+0x10b/0xab0
[  435.894823][   T73]      process_one_work+0x84d/0x18a0
[  435.894823][   T73]      worker_thread+0x587/0xd30
[  435.894823][   T73]      kthread+0x28a/0x350
[  435.894823][   T73]      ret_from_fork+0x31/0x70
[  435.894823][   T73]      ret_from_fork_asm+0x1a/0x30
[  435.894823][   T73] 
[  435.898071][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  435.898071][   T73]      netdev_get_by_index+0x5e/0x80
[  435.898071][   T73]      fib6_nh_init+0x3d8/0x1580
[  435.898071][   T73]      ip6_route_info_create+0xf18/0x17d0
[  435.898071][   T73]      ip6_route_add+0x1c/0x140
[  435.898071][   T73]      addrconf_prefix_route+0x2a6/0x430
[  435.898071][   T73]      inet6_addr_add+0x4f8/0xa40
[  435.898071][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  435.898071][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  435.898071][   T73]      netlink_rcv_skb+0x130/0x360
[  435.898071][   T73]      netlink_unicast+0x449/0x710
[  435.898071][   T73]      netlink_sendmsg+0x723/0xbe0
[  435.898071][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  435.898071][   T73]      ___sys_sendmsg+0xee/0x170
[  435.898071][   T73]      __sys_sendmsg+0xcd/0x170
[  435.898071][   T73]      do_syscall_64+0xc6/0x1e0
[  435.898071][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  435.898071][   T73] 
[  435.901477][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  435.901477][   T73]      netdev_get_by_index+0x5e/0x80
[  435.901477][   T73]      fib6_nh_init+0x3d8/0x1580
[  435.901477][   T73]      ip6_route_info_create+0xf18/0x17d0
[  435.901477][   T73]      addrconf_f6i_alloc+0x315/0x560
[  435.901477][   T73]      ipv6_add_addr+0x411/0x2000
[  435.901477][   T73]      inet6_addr_add+0x30e/0xa40
[  435.901477][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  435.901477][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  435.901477][   T73]      netlink_rcv_skb+0x130/0x360
[  435.901477][   T73]      netlink_unicast+0x449/0x710
[  435.901477][   T73]      netlink_sendmsg+0x723/0xbe0
[  435.901477][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  435.901477][   T73]      ___sys_sendmsg+0xee/0x170
[  435.901477][   T73]      __sys_sendmsg+0xcd/0x170
[  435.901477][   T73]      do_syscall_64+0xc6/0x1e0
[  435.901477][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  435.901477][   T73] 
[  435.904919][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  435.904919][   T73]      netdev_get_by_index+0x5e/0x80
[  435.904919][   T73]      fib6_nh_init+0x3d8/0x1580
[  435.904919][   T73]      ip6_route_info_create+0xf18/0x17d0
[  435.904919][   T73]      ip6_route_add+0x1c/0x140
[  435.904919][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  435.904919][   T73]      addrconf_add_dev+0xe2/0x170
[  435.904919][   T73]      inet6_addr_add+0x12f/0xa40
[  435.904919][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  435.904919][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  435.904919][   T73]      netlink_rcv_skb+0x130/0x360
[  435.904919][   T73]      netlink_unicast+0x449/0x710
[  435.904919][   T73]      netlink_sendmsg+0x723/0xbe0
[  435.904919][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  435.904919][   T73]      ___sys_sendmsg+0xee/0x170
[  435.904919][   T73]      __sys_sendmsg+0xcd/0x170
[  435.904919][   T73]      do_syscall_64+0xc6/0x1e0
[  435.904919][   T73] 
[  435.908302][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  435.908302][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  435.908302][   T73]      ipv6_find_idev+0x102/0x170
[  435.908302][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  435.908302][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  435.908302][   T73]      netlink_rcv_skb+0x130/0x360
[  435.908302][   T73]      netlink_unicast+0x449/0x710
[  435.908302][   T73]      netlink_sendmsg+0x723/0xbe0
[  435.908302][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  435.908302][   T73]      ___sys_sendmsg+0xee/0x170
[  435.908302][   T73]      __sys_sendmsg+0xcd/0x170
[  435.908302][   T73]      do_syscall_64+0xc6/0x1e0
[  435.908302][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  435.908302][   T73] 
[  435.910960][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  435.910960][   T73]      neigh_parms_alloc+0x1e5/0x510
[  435.910960][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  435.910960][   T73]      ipv6_find_idev+0x102/0x170
[  435.910960][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  435.910960][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  435.910960][   T73]      netlink_rcv_skb+0x130/0x360
[  435.910960][   T73]      netlink_unicast+0x449/0x710
[  435.910960][   T73]      netlink_sendmsg+0x723/0xbe0
[  435.910960][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  435.910960][   T73]      ___sys_sendmsg+0xee/0x170
[  435.910960][   T73]      __sys_sendmsg+0xcd/0x170
[  435.910960][   T73]      do_syscall_64+0xc6/0x1e0
[  435.910960][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  435.910960][   T73] 
[  435.913896][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  435.914356][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  435.914356][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  435.914356][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  435.914356][   T73]      fib6_nh_init+0xa22/0x1580
[  435.914356][   T73]      ip6_route_info_create+0xf18/0x17d0
[  435.914356][   T73]      ip6_route_add+0x1c/0x140
[  435.914356][   T73]      inet6_rtm_newroute+0x104/0x110
[  435.914356][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  435.914356][   T73]      netlink_rcv_skb+0x130/0x360
[  435.914356][   T73]      netlink_unicast+0x449/0x710
[  435.914356][   T73]      netlink_sendmsg+0x723/0xbe0
[  435.914356][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  435.914356][   T73]      ___sys_sendmsg+0xee/0x170
[  435.914356][   T73]      __sys_sendmsg+0xcd/0x170
[  435.914356][   T73]      do_syscall_64+0xc6/0x1e0
[  435.914356][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  435.914356][   T73] 
[  435.917825][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  435.917825][   T73]      dst_init+0x84/0x4a0
[  435.917825][   T73]      dst_alloc+0x97/0x150
[  435.917825][   T73]      ip6_dst_alloc+0x23/0x90
[  435.917825][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  435.917825][   T73]      ip6_pol_route+0x56f/0x840
[  435.917825][   T73]      fib6_rule_lookup+0x456/0x630
[  435.917825][   T73]      ip6_route_input+0x59c/0xa50
[  435.917825][   T73]      ipv6_rcv+0x397/0x810
[  435.917825][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  435.917825][   T73]      process_backlog+0x101/0x620
[  435.917825][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  435.917825][   T73]      net_rx_action+0x495/0xbe0
[  435.917825][   T73]      __do_softirq+0x1b5/0x7f6
[  435.917825][   T73] 
[  435.921171][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  435.921171][   T73]      netdev_get_by_index+0x5e/0x80
[  435.921171][   T73]      fib6_nh_init+0x3d8/0x1580
[  435.921171][   T73]      ip6_route_info_create+0xf18/0x17d0
[  435.921171][   T73]      ip6_route_add+0x1c/0x140
[  435.921171][   T73]      addrconf_prefix_route+0x2a6/0x430
[  435.921171][   T73]      inet6_addr_add+0x4f8/0xa40
[  435.921171][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  435.921171][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  435.921171][   T73]      netlink_rcv_skb+0x130/0x360
[  435.921171][   T73]      netlink_unicast+0x449/0x710
[  435.921171][   T73]      netlink_sendmsg+0x723/0xbe0
[  435.921171][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  435.921171][   T73]      ___sys_sendmsg+0xee/0x170
[  435.921171][   T73]      __sys_sendmsg+0xcd/0x170
[  435.921171][   T73]      do_syscall_64+0xc6/0x1e0
[  435.921171][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  435.921171][   T73] 
[  435.924894][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  435.924894][   T73]      netdev_get_by_index+0x5e/0x80
[  435.924894][   T73]      fib6_nh_init+0x3d8/0x1580
[  435.924894][   T73]      ip6_route_info_create+0xf18/0x17d0
[  435.924894][   T73]      addrconf_f6i_alloc+0x315/0x560
[  435.924894][   T73]      ipv6_add_addr+0x411/0x2000
[  435.924894][   T73]      inet6_addr_add+0x30e/0xa40
[  435.924894][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  435.924894][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  435.924894][   T73]      netlink_rcv_skb+0x130/0x360
[  435.924894][   T73]      netlink_unicast+0x449/0x710
[  435.924894][   T73]      netlink_sendmsg+0x723/0xbe0
[  435.924894][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  435.924894][   T73]      ___sys_sendmsg+0xee/0x170
[  435.924894][   T73]      __sys_sendmsg+0xcd/0x170
[  435.924894][   T73]      do_syscall_64+0xc6/0x1e0
[  435.924894][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  435.924894][   T73] 
[  435.928739][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  435.928739][   T73]      netdev_get_by_index+0x5e/0x80
[  435.928739][   T73]      fib6_nh_init+0x3d8/0x1580
[  435.928739][   T73]      ip6_route_info_create+0xf18/0x17d0
[  435.928739][   T73]      ip6_route_add+0x1c/0x140
[  435.928739][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  435.928739][   T73]      addrconf_add_dev+0xe2/0x170
[  435.928739][   T73]      inet6_addr_add+0x12f/0xa40
[  435.928739][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  435.928739][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  435.928739][   T73]      netlink_rcv_skb+0x130/0x360
[  435.928739][   T73]      netlink_unicast+0x449/0x710
[  435.928739][   T73]      netlink_sendmsg+0x723/0xbe0
[  435.928739][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  435.928739][   T73]      ___sys_sendmsg+0xee/0x170
[  435.928739][   T73]      __sys_sendmsg+0xcd/0x170
[  435.928739][   T73]      do_syscall_64+0xc6/0x1e0
[  435.928739][   T73] 
[  435.932464][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  435.932464][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  435.932464][   T73]      ipv6_find_idev+0x102/0x170
[  435.932464][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  435.932464][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  435.932464][   T73]      netlink_rcv_skb+0x130/0x360
[  435.932464][   T73]      netlink_unicast+0x449/0x710
[  435.932464][   T73]      netlink_sendmsg+0x723/0xbe0
[  435.932464][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  435.932464][   T73]      ___sys_sendmsg+0xee/0x170
[  435.932464][   T73]      __sys_sendmsg+0xcd/0x170
[  435.932464][   T73]      do_syscall_64+0xc6/0x1e0
[  435.932464][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  435.932464][   T73] 
[  435.935458][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  435.935458][   T73]      neigh_parms_alloc+0x1e5/0x510
[  435.935458][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  435.935458][   T73]      ipv6_find_idev+0x102/0x170
[  435.935458][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  435.935458][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  435.935458][   T73]      netlink_rcv_skb+0x130/0x360
[  435.935458][   T73]      netlink_unicast+0x449/0x710
[  435.935458][   T73]      netlink_sendmsg+0x723/0xbe0
[  435.935458][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  435.935458][   T73]      ___sys_sendmsg+0xee/0x170
[  435.935458][   T73]      __sys_sendmsg+0xcd/0x170
[  435.935458][   T73]      do_syscall_64+0xc6/0x1e0
[  435.935458][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  435.935458][   T73] 
[  435.938826][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  435.939400][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  435.939400][   T73]      netdev_get_by_index+0x5e/0x80
[  435.939400][   T73]      fib6_nh_init+0x3d8/0x1580
[  435.939400][   T73]      ip6_route_info_create+0xf18/0x17d0
[  435.939400][   T73]      addrconf_f6i_alloc+0x265/0x560
[  435.939400][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  435.939400][   T73]      addrconf_join_anycast+0x1c0/0x220
[  435.939400][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  435.939400][   T73]      addrconf_dad_completed+0x12b/0xe20
[  435.939400][   T73]      addrconf_dad_begin+0x310/0x670
[  435.939400][   T73]      addrconf_dad_work+0x10b/0xab0
[  435.939400][   T73]      process_one_work+0x84d/0x18a0
[  435.939400][   T73]      worker_thread+0x587/0xd30
[  435.939400][   T73]      kthread+0x28a/0x350
[  435.939400][   T73]      ret_from_fork+0x31/0x70
[  435.939400][   T73]      ret_from_fork_asm+0x1a/0x30
[  435.939400][   T73] 
[  435.943039][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  435.943039][   T73]      netdev_get_by_index+0x5e/0x80
[  435.943039][   T73]      fib6_nh_init+0x3d8/0x1580
[  435.943039][   T73]      ip6_route_info_create+0xf18/0x17d0
[  435.943039][   T73]      ip6_route_add+0x1c/0x140
[  435.943039][   T73]      addrconf_prefix_route+0x2a6/0x430
[  435.943039][   T73]      inet6_addr_add+0x4f8/0xa40
[  435.943039][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  435.943039][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  435.943039][   T73]      netlink_rcv_skb+0x130/0x360
[  435.943039][   T73]      netlink_unicast+0x449/0x710
[  435.943039][   T73]      netlink_sendmsg+0x723/0xbe0
[  435.943039][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  435.943039][   T73]      ___sys_sendmsg+0xee/0x170
[  435.943039][   T73]      __sys_sendmsg+0xcd/0x170
[  435.943039][   T73]      do_syscall_64+0xc6/0x1e0
[  435.943039][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  435.943039][   T73] 
[  435.946948][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  435.946948][   T73]      netdev_get_by_index+0x5e/0x80
[  435.946948][   T73]      fib6_nh_init+0x3d8/0x1580
[  435.946948][   T73]      ip6_route_info_create+0xf18/0x17d0
[  435.946948][   T73]      addrconf_f6i_alloc+0x315/0x560
[  435.946948][   T73]      ipv6_add_addr+0x411/0x2000
[  435.946948][   T73]      inet6_addr_add+0x30e/0xa40
[  435.946948][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  435.946948][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  435.946948][   T73]      netlink_rcv_skb+0x130/0x360
[  435.946948][   T73]      netlink_unicast+0x449/0x710
[  435.946948][   T73]      netlink_sendmsg+0x723/0xbe0
[  435.946948][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  435.946948][   T73]      ___sys_sendmsg+0xee/0x170
[  435.946948][   T73]      __sys_sendmsg+0xcd/0x170
[  435.946948][   T73]      do_syscall_64+0xc6/0x1e0
[  435.946948][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  435.946948][   T73] 
[  435.951898][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  435.951898][   T73]      netdev_get_by_index+0x5e/0x80
[  435.951898][   T73]      fib6_nh_init+0x3d8/0x1580
[  435.951898][   T73]      ip6_route_info_create+0xf18/0x17d0
[  435.951898][   T73]      ip6_route_add+0x1c/0x140
[  435.951898][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  435.951898][   T73]      addrconf_add_dev+0xe2/0x170
[  435.951898][   T73]      inet6_addr_add+0x12f/0xa40
[  435.951898][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  435.951898][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  435.951898][   T73]      netlink_rcv_skb+0x130/0x360
[  435.951898][   T73]      netlink_unicast+0x449/0x710
[  435.951898][   T73]      netlink_sendmsg+0x723/0xbe0
[  435.951898][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  435.951898][   T73]      ___sys_sendmsg+0xee/0x170
[  435.951898][   T73]      __sys_sendmsg+0xcd/0x170
[  435.951898][   T73]      do_syscall_64+0xc6/0x1e0
[  435.951898][   T73] 
[  435.955702][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  435.955702][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  435.955702][   T73]      ipv6_find_idev+0x102/0x170
[  435.955702][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  435.955702][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  435.955702][   T73]      netlink_rcv_skb+0x130/0x360
[  435.955702][   T73]      netlink_unicast+0x449/0x710
[  435.955702][   T73]      netlink_sendmsg+0x723/0xbe0
[  435.955702][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  435.955702][   T73]      ___sys_sendmsg+0xee/0x170
[  435.955702][   T73]      __sys_sendmsg+0xcd/0x170
[  435.955702][   T73]      do_syscall_64+0xc6/0x1e0
[  435.955702][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  435.955702][   T73] 
[  435.958517][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  435.958517][   T73]      neigh_parms_alloc+0x1e5/0x510
[  435.958517][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  435.958517][   T73]      ipv6_find_idev+0x102/0x170
[  435.958517][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  435.958517][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  435.958517][   T73]      netlink_rcv_skb+0x130/0x360
[  435.958517][   T73]      netlink_unicast+0x449/0x710
[  435.958517][   T73]      netlink_sendmsg+0x723/0xbe0
[  435.958517][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  435.958517][   T73]      ___sys_sendmsg+0xee/0x170
[  435.958517][   T73]      __sys_sendmsg+0xcd/0x170
[  435.958517][   T73]      do_syscall_64+0xc6/0x1e0
[  435.958517][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  435.958517][   T73] 
[  446.335829][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  446.336255][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  446.336255][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  446.336255][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  446.336255][   T73]      fib6_nh_init+0xa22/0x1580
[  446.336255][   T73]      ip6_route_info_create+0xf18/0x17d0
[  446.336255][   T73]      ip6_route_add+0x1c/0x140
[  446.336255][   T73]      inet6_rtm_newroute+0x104/0x110
[  446.336255][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  446.336255][   T73]      netlink_rcv_skb+0x130/0x360
[  446.336255][   T73]      netlink_unicast+0x449/0x710
[  446.336255][   T73]      netlink_sendmsg+0x723/0xbe0
[  446.336255][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  446.336255][   T73]      ___sys_sendmsg+0xee/0x170
[  446.336255][   T73]      __sys_sendmsg+0xcd/0x170
[  446.336255][   T73]      do_syscall_64+0xc6/0x1e0
[  446.336255][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  446.336255][   T73] 
[  446.338357][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  446.338357][   T73]      dst_init+0x84/0x4a0
[  446.338357][   T73]      dst_alloc+0x97/0x150
[  446.338357][   T73]      ip6_dst_alloc+0x23/0x90
[  446.338357][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  446.338357][   T73]      ip6_pol_route+0x56f/0x840
[  446.338357][   T73]      fib6_rule_lookup+0x456/0x630
[  446.338357][   T73]      ip6_route_input+0x59c/0xa50
[  446.338357][   T73]      ipv6_rcv+0x397/0x810
[  446.338357][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  446.338357][   T73]      process_backlog+0x101/0x620
[  446.338357][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  446.338357][   T73]      net_rx_action+0x495/0xbe0
[  446.338357][   T73]      __do_softirq+0x1b5/0x7f6
[  446.338357][   T73] 
[  446.340232][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  446.340232][   T73]      netdev_get_by_index+0x5e/0x80
[  446.340232][   T73]      fib6_nh_init+0x3d8/0x1580
[  446.340232][   T73]      ip6_route_info_create+0xf18/0x17d0
[  446.340232][   T73]      ip6_route_add+0x1c/0x140
[  446.340232][   T73]      addrconf_prefix_route+0x2a6/0x430
[  446.340232][   T73]      inet6_addr_add+0x4f8/0xa40
[  446.340232][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  446.340232][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  446.340232][   T73]      netlink_rcv_skb+0x130/0x360
[  446.340232][   T73]      netlink_unicast+0x449/0x710
[  446.340232][   T73]      netlink_sendmsg+0x723/0xbe0
[  446.340232][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  446.340232][   T73]      ___sys_sendmsg+0xee/0x170
[  446.340232][   T73]      __sys_sendmsg+0xcd/0x170
[  446.340232][   T73]      do_syscall_64+0xc6/0x1e0
[  446.340232][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  446.340232][   T73] 
[  446.342622][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  446.342622][   T73]      netdev_get_by_index+0x5e/0x80
[  446.342622][   T73]      fib6_nh_init+0x3d8/0x1580
[  446.342622][   T73]      ip6_route_info_create+0xf18/0x17d0
[  446.342622][   T73]      addrconf_f6i_alloc+0x315/0x560
[  446.342622][   T73]      ipv6_add_addr+0x411/0x2000
[  446.342622][   T73]      inet6_addr_add+0x30e/0xa40
[  446.342622][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  446.342622][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  446.342622][   T73]      netlink_rcv_skb+0x130/0x360
[  446.342622][   T73]      netlink_unicast+0x449/0x710
[  446.342622][   T73]      netlink_sendmsg+0x723/0xbe0
[  446.342622][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  446.342622][   T73]      ___sys_sendmsg+0xee/0x170
[  446.342622][   T73]      __sys_sendmsg+0xcd/0x170
[  446.342622][   T73]      do_syscall_64+0xc6/0x1e0
[  446.342622][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  446.342622][   T73] 
[  446.345040][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  446.345040][   T73]      netdev_get_by_index+0x5e/0x80
[  446.345040][   T73]      fib6_nh_init+0x3d8/0x1580
[  446.345040][   T73]      ip6_route_info_create+0xf18/0x17d0
[  446.345040][   T73]      ip6_route_add+0x1c/0x140
[  446.345040][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  446.345040][   T73]      addrconf_add_dev+0xe2/0x170
[  446.345040][   T73]      inet6_addr_add+0x12f/0xa40
[  446.345040][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  446.345040][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  446.345040][   T73]      netlink_rcv_skb+0x130/0x360
[  446.345040][   T73]      netlink_unicast+0x449/0x710
[  446.345040][   T73]      netlink_sendmsg+0x723/0xbe0
[  446.345040][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  446.345040][   T73]      ___sys_sendmsg+0xee/0x170
[  446.345040][   T73]      __sys_sendmsg+0xcd/0x170
[  446.345040][   T73]      do_syscall_64+0xc6/0x1e0
[  446.345040][   T73] 
[  446.347386][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  446.347386][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  446.347386][   T73]      ipv6_find_idev+0x102/0x170
[  446.347386][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  446.347386][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  446.347386][   T73]      netlink_rcv_skb+0x130/0x360
[  446.347386][   T73]      netlink_unicast+0x449/0x710
[  446.347386][   T73]      netlink_sendmsg+0x723/0xbe0
[  446.347386][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  446.347386][   T73]      ___sys_sendmsg+0xee/0x170
[  446.347386][   T73]      __sys_sendmsg+0xcd/0x170
[  446.347386][   T73]      do_syscall_64+0xc6/0x1e0
[  446.347386][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  446.347386][   T73] 
[  446.349067][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  446.349067][   T73]      neigh_parms_alloc+0x1e5/0x510
[  446.349067][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  446.349067][   T73]      ipv6_find_idev+0x102/0x170
[  446.349067][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  446.349067][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  446.349067][   T73]      netlink_rcv_skb+0x130/0x360
[  446.349067][   T73]      netlink_unicast+0x449/0x710
[  446.349067][   T73]      netlink_sendmsg+0x723/0xbe0
[  446.349067][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  446.349067][   T73]      ___sys_sendmsg+0xee/0x170
[  446.349067][   T73]      __sys_sendmsg+0xcd/0x170
[  446.349067][   T73]      do_syscall_64+0xc6/0x1e0
[  446.349067][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  446.349067][   T73] 
[  446.350995][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  446.351300][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  446.351300][   T73]      netdev_get_by_index+0x5e/0x80
[  446.351300][   T73]      fib6_nh_init+0x3d8/0x1580
[  446.351300][   T73]      ip6_route_info_create+0xf18/0x17d0
[  446.351300][   T73]      addrconf_f6i_alloc+0x265/0x560
[  446.351300][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  446.351300][   T73]      addrconf_join_anycast+0x1c0/0x220
[  446.351300][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  446.351300][   T73]      addrconf_dad_completed+0x12b/0xe20
[  446.351300][   T73]      addrconf_dad_begin+0x310/0x670
[  446.351300][   T73]      addrconf_dad_work+0x10b/0xab0
[  446.351300][   T73]      process_one_work+0x84d/0x18a0
[  446.351300][   T73]      worker_thread+0x587/0xd30
[  446.351300][   T73]      kthread+0x28a/0x350
[  446.351300][   T73]      ret_from_fork+0x31/0x70
[  446.351300][   T73]      ret_from_fork_asm+0x1a/0x30
[  446.351300][   T73] 
[  446.353471][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  446.353471][   T73]      netdev_get_by_index+0x5e/0x80
[  446.353471][   T73]      fib6_nh_init+0x3d8/0x1580
[  446.353471][   T73]      ip6_route_info_create+0xf18/0x17d0
[  446.353471][   T73]      ip6_route_add+0x1c/0x140
[  446.353471][   T73]      addrconf_prefix_route+0x2a6/0x430
[  446.353471][   T73]      inet6_addr_add+0x4f8/0xa40
[  446.353471][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  446.353471][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  446.353471][   T73]      netlink_rcv_skb+0x130/0x360
[  446.353471][   T73]      netlink_unicast+0x449/0x710
[  446.353471][   T73]      netlink_sendmsg+0x723/0xbe0
[  446.353471][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  446.353471][   T73]      ___sys_sendmsg+0xee/0x170
[  446.353471][   T73]      __sys_sendmsg+0xcd/0x170
[  446.353471][   T73]      do_syscall_64+0xc6/0x1e0
[  446.353471][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  446.353471][   T73] 
[  446.355664][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  446.355664][   T73]      netdev_get_by_index+0x5e/0x80
[  446.355664][   T73]      fib6_nh_init+0x3d8/0x1580
[  446.355664][   T73]      ip6_route_info_create+0xf18/0x17d0
[  446.355664][   T73]      addrconf_f6i_alloc+0x315/0x560
[  446.355664][   T73]      ipv6_add_addr+0x411/0x2000
[  446.355664][   T73]      inet6_addr_add+0x30e/0xa40
[  446.355664][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  446.355664][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  446.355664][   T73]      netlink_rcv_skb+0x130/0x360
[  446.355664][   T73]      netlink_unicast+0x449/0x710
[  446.355664][   T73]      netlink_sendmsg+0x723/0xbe0
[  446.355664][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  446.355664][   T73]      ___sys_sendmsg+0xee/0x170
[  446.355664][   T73]      __sys_sendmsg+0xcd/0x170
[  446.355664][   T73]      do_syscall_64+0xc6/0x1e0
[  446.355664][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  446.355664][   T73] 
[  446.357852][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  446.357852][   T73]      netdev_get_by_index+0x5e/0x80
[  446.357852][   T73]      fib6_nh_init+0x3d8/0x1580
[  446.357852][   T73]      ip6_route_info_create+0xf18/0x17d0
[  446.357852][   T73]      ip6_route_add+0x1c/0x140
[  446.357852][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  446.357852][   T73]      addrconf_add_dev+0xe2/0x170
[  446.357852][   T73]      inet6_addr_add+0x12f/0xa40
[  446.357852][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  446.357852][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  446.357852][   T73]      netlink_rcv_skb+0x130/0x360
[  446.357852][   T73]      netlink_unicast+0x449/0x710
[  446.357852][   T73]      netlink_sendmsg+0x723/0xbe0
[  446.357852][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  446.357852][   T73]      ___sys_sendmsg+0xee/0x170
[  446.357852][   T73]      __sys_sendmsg+0xcd/0x170
[  446.357852][   T73]      do_syscall_64+0xc6/0x1e0
[  446.357852][   T73] 
[  446.360148][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  446.360148][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  446.360148][   T73]      ipv6_find_idev+0x102/0x170
[  446.360148][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  446.360148][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  446.360148][   T73]      netlink_rcv_skb+0x130/0x360
[  446.360148][   T73]      netlink_unicast+0x449/0x710
[  446.360148][   T73]      netlink_sendmsg+0x723/0xbe0
[  446.360148][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  446.360148][   T73]      ___sys_sendmsg+0xee/0x170
[  446.360148][   T73]      __sys_sendmsg+0xcd/0x170
[  446.360148][   T73]      do_syscall_64+0xc6/0x1e0
[  446.360148][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  446.360148][   T73] 
[  446.361961][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  446.361961][   T73]      neigh_parms_alloc+0x1e5/0x510
[  446.361961][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  446.361961][   T73]      ipv6_find_idev+0x102/0x170
[  446.361961][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  446.361961][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  446.361961][   T73]      netlink_rcv_skb+0x130/0x360
[  446.361961][   T73]      netlink_unicast+0x449/0x710
[  446.361961][   T73]      netlink_sendmsg+0x723/0xbe0
[  446.361961][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  446.361961][   T73]      ___sys_sendmsg+0xee/0x170
[  446.361961][   T73]      __sys_sendmsg+0xcd/0x170
[  446.361961][   T73]      do_syscall_64+0xc6/0x1e0
[  446.361961][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  446.361961][   T73] 
[  446.363853][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  446.364148][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  446.364148][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  446.364148][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  446.364148][   T73]      fib6_nh_init+0xa22/0x1580
[  446.364148][   T73]      ip6_route_info_create+0xf18/0x17d0
[  446.364148][   T73]      ip6_route_add+0x1c/0x140
[  446.364148][   T73]      inet6_rtm_newroute+0x104/0x110
[  446.364148][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  446.364148][   T73]      netlink_rcv_skb+0x130/0x360
[  446.364148][   T73]      netlink_unicast+0x449/0x710
[  446.364148][   T73]      netlink_sendmsg+0x723/0xbe0
[  446.364148][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  446.364148][   T73]      ___sys_sendmsg+0xee/0x170
[  446.364148][   T73]      __sys_sendmsg+0xcd/0x170
[  446.364148][   T73]      do_syscall_64+0xc6/0x1e0
[  446.364148][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  446.364148][   T73] 
[  446.366334][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  446.366334][   T73]      dst_init+0x84/0x4a0
[  446.366334][   T73]      dst_alloc+0x97/0x150
[  446.366334][   T73]      ip6_dst_alloc+0x23/0x90
[  446.366334][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  446.366334][   T73]      ip6_pol_route+0x56f/0x840
[  446.366334][   T73]      fib6_rule_lookup+0x456/0x630
[  446.366334][   T73]      ip6_route_input+0x59c/0xa50
[  446.366334][   T73]      ipv6_rcv+0x397/0x810
[  446.366334][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  446.366334][   T73]      process_backlog+0x101/0x620
[  446.366334][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  446.366334][   T73]      net_rx_action+0x495/0xbe0
[  446.366334][   T73]      __do_softirq+0x1b5/0x7f6
[  446.366334][   T73] 
[  446.368425][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  446.368425][   T73]      netdev_get_by_index+0x5e/0x80
[  446.368425][   T73]      fib6_nh_init+0x3d8/0x1580
[  446.368425][   T73]      ip6_route_info_create+0xf18/0x17d0
[  446.368425][   T73]      ip6_route_add+0x1c/0x140
[  446.368425][   T73]      addrconf_prefix_route+0x2a6/0x430
[  446.368425][   T73]      inet6_addr_add+0x4f8/0xa40
[  446.368425][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  446.368425][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  446.368425][   T73]      netlink_rcv_skb+0x130/0x360
[  446.368425][   T73]      netlink_unicast+0x449/0x710
[  446.368425][   T73]      netlink_sendmsg+0x723/0xbe0
[  446.368425][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  446.368425][   T73]      ___sys_sendmsg+0xee/0x170
[  446.368425][   T73]      __sys_sendmsg+0xcd/0x170
[  446.368425][   T73]      do_syscall_64+0xc6/0x1e0
[  446.368425][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  446.368425][   T73] 
[  446.370796][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  446.370796][   T73]      netdev_get_by_index+0x5e/0x80
[  446.370796][   T73]      fib6_nh_init+0x3d8/0x1580
[  446.370796][   T73]      ip6_route_info_create+0xf18/0x17d0
[  446.370796][   T73]      addrconf_f6i_alloc+0x315/0x560
[  446.370796][   T73]      ipv6_add_addr+0x411/0x2000
[  446.370796][   T73]      inet6_addr_add+0x30e/0xa40
[  446.370796][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  446.370796][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  446.370796][   T73]      netlink_rcv_skb+0x130/0x360
[  446.370796][   T73]      netlink_unicast+0x449/0x710
[  446.370796][   T73]      netlink_sendmsg+0x723/0xbe0
[  446.370796][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  446.370796][   T73]      ___sys_sendmsg+0xee/0x170
[  446.370796][   T73]      __sys_sendmsg+0xcd/0x170
[  446.370796][   T73]      do_syscall_64+0xc6/0x1e0
[  446.370796][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  446.370796][   T73] 
[  446.373232][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  446.373232][   T73]      netdev_get_by_index+0x5e/0x80
[  446.373232][   T73]      fib6_nh_init+0x3d8/0x1580
[  446.373232][   T73]      ip6_route_info_create+0xf18/0x17d0
[  446.373232][   T73]      ip6_route_add+0x1c/0x140
[  446.373232][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  446.373232][   T73]      addrconf_add_dev+0xe2/0x170
[  446.373232][   T73]      inet6_addr_add+0x12f/0xa40
[  446.373232][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  446.373232][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  446.373232][   T73]      netlink_rcv_skb+0x130/0x360
[  446.373232][   T73]      netlink_unicast+0x449/0x710
[  446.373232][   T73]      netlink_sendmsg+0x723/0xbe0
[  446.373232][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  446.373232][   T73]      ___sys_sendmsg+0xee/0x170
[  446.373232][   T73]      __sys_sendmsg+0xcd/0x170
[  446.373232][   T73]      do_syscall_64+0xc6/0x1e0
[  446.373232][   T73] 
[  446.375836][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  446.375836][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  446.375836][   T73]      ipv6_find_idev+0x102/0x170
[  446.375836][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  446.375836][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  446.375836][   T73]      netlink_rcv_skb+0x130/0x360
[  446.375836][   T73]      netlink_unicast+0x449/0x710
[  446.375836][   T73]      netlink_sendmsg+0x723/0xbe0
[  446.375836][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  446.375836][   T73]      ___sys_sendmsg+0xee/0x170
[  446.375836][   T73]      __sys_sendmsg+0xcd/0x170
[  446.375836][   T73]      do_syscall_64+0xc6/0x1e0
[  446.375836][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  446.375836][   T73] 
[  446.377842][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  446.377842][   T73]      neigh_parms_alloc+0x1e5/0x510
[  446.377842][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  446.377842][   T73]      ipv6_find_idev+0x102/0x170
[  446.377842][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  446.377842][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  446.377842][   T73]      netlink_rcv_skb+0x130/0x360
[  446.377842][   T73]      netlink_unicast+0x449/0x710
[  446.377842][   T73]      netlink_sendmsg+0x723/0xbe0
[  446.377842][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  446.377842][   T73]      ___sys_sendmsg+0xee/0x170
[  446.377842][   T73]      __sys_sendmsg+0xcd/0x170
[  446.377842][   T73]      do_syscall_64+0xc6/0x1e0
[  446.377842][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  446.377842][   T73] 
[  446.380031][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  446.380423][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  446.380423][   T73]      netdev_get_by_index+0x5e/0x80
[  446.380423][   T73]      fib6_nh_init+0x3d8/0x1580
[  446.380423][   T73]      ip6_route_info_create+0xf18/0x17d0
[  446.380423][   T73]      addrconf_f6i_alloc+0x265/0x560
[  446.380423][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  446.380423][   T73]      addrconf_join_anycast+0x1c0/0x220
[  446.380423][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  446.380423][   T73]      addrconf_dad_completed+0x12b/0xe20
[  446.380423][   T73]      addrconf_dad_begin+0x310/0x670
[  446.380423][   T73]      addrconf_dad_work+0x10b/0xab0
[  446.380423][   T73]      process_one_work+0x84d/0x18a0
[  446.380423][   T73]      worker_thread+0x587/0xd30
[  446.380423][   T73]      kthread+0x28a/0x350
[  446.380423][   T73]      ret_from_fork+0x31/0x70
[  446.380423][   T73]      ret_from_fork_asm+0x1a/0x30
[  446.380423][   T73] 
[  446.383454][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  446.383454][   T73]      netdev_get_by_index+0x5e/0x80
[  446.383454][   T73]      fib6_nh_init+0x3d8/0x1580
[  446.383454][   T73]      ip6_route_info_create+0xf18/0x17d0
[  446.383454][   T73]      ip6_route_add+0x1c/0x140
[  446.383454][   T73]      addrconf_prefix_route+0x2a6/0x430
[  446.383454][   T73]      inet6_addr_add+0x4f8/0xa40
[  446.383454][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  446.383454][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  446.383454][   T73]      netlink_rcv_skb+0x130/0x360
[  446.383454][   T73]      netlink_unicast+0x449/0x710
[  446.383454][   T73]      netlink_sendmsg+0x723/0xbe0
[  446.383454][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  446.383454][   T73]      ___sys_sendmsg+0xee/0x170
[  446.383454][   T73]      __sys_sendmsg+0xcd/0x170
[  446.383454][   T73]      do_syscall_64+0xc6/0x1e0
[  446.383454][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  446.383454][   T73] 
[  446.387161][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  446.387161][   T73]      netdev_get_by_index+0x5e/0x80
[  446.387161][   T73]      fib6_nh_init+0x3d8/0x1580
[  446.387161][   T73]      ip6_route_info_create+0xf18/0x17d0
[  446.387161][   T73]      addrconf_f6i_alloc+0x315/0x560
[  446.387161][   T73]      ipv6_add_addr+0x411/0x2000
[  446.387161][   T73]      inet6_addr_add+0x30e/0xa40
[  446.387161][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  446.387161][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  446.387161][   T73]      netlink_rcv_skb+0x130/0x360
[  446.387161][   T73]      netlink_unicast+0x449/0x710
[  446.387161][   T73]      netlink_sendmsg+0x723/0xbe0
[  446.387161][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  446.387161][   T73]      ___sys_sendmsg+0xee/0x170
[  446.387161][   T73]      __sys_sendmsg+0xcd/0x170
[  446.387161][   T73]      do_syscall_64+0xc6/0x1e0
[  446.387161][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  446.387161][   T73] 
[  446.390455][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  446.390455][   T73]      netdev_get_by_index+0x5e/0x80
[  446.390455][   T73]      fib6_nh_init+0x3d8/0x1580
[  446.390455][   T73]      ip6_route_info_create+0xf18/0x17d0
[  446.390455][   T73]      ip6_route_add+0x1c/0x140
[  446.390455][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  446.390455][   T73]      addrconf_add_dev+0xe2/0x170
[  446.390455][   T73]      inet6_addr_add+0x12f/0xa40
[  446.390455][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  446.390455][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  446.390455][   T73]      netlink_rcv_skb+0x130/0x360
[  446.390455][   T73]      netlink_unicast+0x449/0x710
[  446.390455][   T73]      netlink_sendmsg+0x723/0xbe0
[  446.390455][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  446.390455][   T73]      ___sys_sendmsg+0xee/0x170
[  446.390455][   T73]      __sys_sendmsg+0xcd/0x170
[  446.390455][   T73]      do_syscall_64+0xc6/0x1e0
[  446.390455][   T73] 
[  446.393517][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  446.393517][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  446.393517][   T73]      ipv6_find_idev+0x102/0x170
[  446.393517][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  446.393517][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  446.393517][   T73]      netlink_rcv_skb+0x130/0x360
[  446.393517][   T73]      netlink_unicast+0x449/0x710
[  446.393517][   T73]      netlink_sendmsg+0x723/0xbe0
[  446.393517][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  446.393517][   T73]      ___sys_sendmsg+0xee/0x170
[  446.393517][   T73]      __sys_sendmsg+0xcd/0x170
[  446.393517][   T73]      do_syscall_64+0xc6/0x1e0
[  446.393517][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  446.393517][   T73] 
[  446.396275][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  446.396275][   T73]      neigh_parms_alloc+0x1e5/0x510
[  446.396275][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  446.396275][   T73]      ipv6_find_idev+0x102/0x170
[  446.396275][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  446.396275][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  446.396275][   T73]      netlink_rcv_skb+0x130/0x360
[  446.396275][   T73]      netlink_unicast+0x449/0x710
[  446.396275][   T73]      netlink_sendmsg+0x723/0xbe0
[  446.396275][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  446.396275][   T73]      ___sys_sendmsg+0xee/0x170
[  446.396275][   T73]      __sys_sendmsg+0xcd/0x170
[  446.396275][   T73]      do_syscall_64+0xc6/0x1e0
[  446.396275][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  446.396275][   T73] 
[  456.479746][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  456.480192][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  456.480192][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  456.480192][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  456.480192][   T73]      fib6_nh_init+0xa22/0x1580
[  456.480192][   T73]      ip6_route_info_create+0xf18/0x17d0
[  456.480192][   T73]      ip6_route_add+0x1c/0x140
[  456.480192][   T73]      inet6_rtm_newroute+0x104/0x110
[  456.480192][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  456.480192][   T73]      netlink_rcv_skb+0x130/0x360
[  456.480192][   T73]      netlink_unicast+0x449/0x710
[  456.480192][   T73]      netlink_sendmsg+0x723/0xbe0
[  456.480192][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  456.480192][   T73]      ___sys_sendmsg+0xee/0x170
[  456.480192][   T73]      __sys_sendmsg+0xcd/0x170
[  456.480192][   T73]      do_syscall_64+0xc6/0x1e0
[  456.480192][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  456.480192][   T73] 
[  456.482116][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  456.482116][   T73]      dst_init+0x84/0x4a0
[  456.482116][   T73]      dst_alloc+0x97/0x150
[  456.482116][   T73]      ip6_dst_alloc+0x23/0x90
[  456.482116][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  456.482116][   T73]      ip6_pol_route+0x56f/0x840
[  456.482116][   T73]      fib6_rule_lookup+0x456/0x630
[  456.482116][   T73]      ip6_route_input+0x59c/0xa50
[  456.482116][   T73]      ipv6_rcv+0x397/0x810
[  456.482116][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  456.482116][   T73]      process_backlog+0x101/0x620
[  456.482116][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  456.482116][   T73]      net_rx_action+0x495/0xbe0
[  456.482116][   T73]      __do_softirq+0x1b5/0x7f6
[  456.482116][   T73] 
[  456.484018][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  456.484018][   T73]      netdev_get_by_index+0x5e/0x80
[  456.484018][   T73]      fib6_nh_init+0x3d8/0x1580
[  456.484018][   T73]      ip6_route_info_create+0xf18/0x17d0
[  456.484018][   T73]      ip6_route_add+0x1c/0x140
[  456.484018][   T73]      addrconf_prefix_route+0x2a6/0x430
[  456.484018][   T73]      inet6_addr_add+0x4f8/0xa40
[  456.484018][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  456.484018][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  456.484018][   T73]      netlink_rcv_skb+0x130/0x360
[  456.484018][   T73]      netlink_unicast+0x449/0x710
[  456.484018][   T73]      netlink_sendmsg+0x723/0xbe0
[  456.484018][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  456.484018][   T73]      ___sys_sendmsg+0xee/0x170
[  456.484018][   T73]      __sys_sendmsg+0xcd/0x170
[  456.484018][   T73]      do_syscall_64+0xc6/0x1e0
[  456.484018][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  456.484018][   T73] 
[  456.486312][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  456.486312][   T73]      netdev_get_by_index+0x5e/0x80
[  456.486312][   T73]      fib6_nh_init+0x3d8/0x1580
[  456.486312][   T73]      ip6_route_info_create+0xf18/0x17d0
[  456.486312][   T73]      addrconf_f6i_alloc+0x315/0x560
[  456.486312][   T73]      ipv6_add_addr+0x411/0x2000
[  456.486312][   T73]      inet6_addr_add+0x30e/0xa40
[  456.486312][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  456.486312][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  456.486312][   T73]      netlink_rcv_skb+0x130/0x360
[  456.486312][   T73]      netlink_unicast+0x449/0x710
[  456.486312][   T73]      netlink_sendmsg+0x723/0xbe0
[  456.486312][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  456.486312][   T73]      ___sys_sendmsg+0xee/0x170
[  456.486312][   T73]      __sys_sendmsg+0xcd/0x170
[  456.486312][   T73]      do_syscall_64+0xc6/0x1e0
[  456.486312][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  456.486312][   T73] 
[  456.488530][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  456.488530][   T73]      netdev_get_by_index+0x5e/0x80
[  456.488530][   T73]      fib6_nh_init+0x3d8/0x1580
[  456.488530][   T73]      ip6_route_info_create+0xf18/0x17d0
[  456.488530][   T73]      ip6_route_add+0x1c/0x140
[  456.488530][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  456.488530][   T73]      addrconf_add_dev+0xe2/0x170
[  456.488530][   T73]      inet6_addr_add+0x12f/0xa40
[  456.488530][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  456.488530][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  456.488530][   T73]      netlink_rcv_skb+0x130/0x360
[  456.488530][   T73]      netlink_unicast+0x449/0x710
[  456.488530][   T73]      netlink_sendmsg+0x723/0xbe0
[  456.488530][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  456.488530][   T73]      ___sys_sendmsg+0xee/0x170
[  456.488530][   T73]      __sys_sendmsg+0xcd/0x170
[  456.488530][   T73]      do_syscall_64+0xc6/0x1e0
[  456.488530][   T73] 
[  456.490744][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  456.490744][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  456.490744][   T73]      ipv6_find_idev+0x102/0x170
[  456.490744][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  456.490744][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  456.490744][   T73]      netlink_rcv_skb+0x130/0x360
[  456.490744][   T73]      netlink_unicast+0x449/0x710
[  456.490744][   T73]      netlink_sendmsg+0x723/0xbe0
[  456.490744][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  456.490744][   T73]      ___sys_sendmsg+0xee/0x170
[  456.490744][   T73]      __sys_sendmsg+0xcd/0x170
[  456.490744][   T73]      do_syscall_64+0xc6/0x1e0
[  456.490744][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  456.490744][   T73] 
[  456.492580][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  456.492580][   T73]      neigh_parms_alloc+0x1e5/0x510
[  456.492580][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  456.492580][   T73]      ipv6_find_idev+0x102/0x170
[  456.492580][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  456.492580][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  456.492580][   T73]      netlink_rcv_skb+0x130/0x360
[  456.492580][   T73]      netlink_unicast+0x449/0x710
[  456.492580][   T73]      netlink_sendmsg+0x723/0xbe0
[  456.492580][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  456.492580][   T73]      ___sys_sendmsg+0xee/0x170
[  456.492580][   T73]      __sys_sendmsg+0xcd/0x170
[  456.492580][   T73]      do_syscall_64+0xc6/0x1e0
[  456.492580][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  456.492580][   T73] 
[  456.494475][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  456.494788][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  456.494788][   T73]      netdev_get_by_index+0x5e/0x80
[  456.494788][   T73]      fib6_nh_init+0x3d8/0x1580
[  456.494788][   T73]      ip6_route_info_create+0xf18/0x17d0
[  456.494788][   T73]      addrconf_f6i_alloc+0x265/0x560
[  456.494788][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  456.494788][   T73]      addrconf_join_anycast+0x1c0/0x220
[  456.494788][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  456.494788][   T73]      addrconf_dad_completed+0x12b/0xe20
[  456.494788][   T73]      addrconf_dad_begin+0x310/0x670
[  456.494788][   T73]      addrconf_dad_work+0x10b/0xab0
[  456.494788][   T73]      process_one_work+0x84d/0x18a0
[  456.494788][   T73]      worker_thread+0x587/0xd30
[  456.494788][   T73]      kthread+0x28a/0x350
[  456.494788][   T73]      ret_from_fork+0x31/0x70
[  456.494788][   T73]      ret_from_fork_asm+0x1a/0x30
[  456.494788][   T73] 
[  456.496879][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  456.496879][   T73]      netdev_get_by_index+0x5e/0x80
[  456.496879][   T73]      fib6_nh_init+0x3d8/0x1580
[  456.496879][   T73]      ip6_route_info_create+0xf18/0x17d0
[  456.496879][   T73]      ip6_route_add+0x1c/0x140
[  456.496879][   T73]      addrconf_prefix_route+0x2a6/0x430
[  456.496879][   T73]      inet6_addr_add+0x4f8/0xa40
[  456.496879][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  456.496879][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  456.496879][   T73]      netlink_rcv_skb+0x130/0x360
[  456.496879][   T73]      netlink_unicast+0x449/0x710
[  456.496879][   T73]      netlink_sendmsg+0x723/0xbe0
[  456.496879][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  456.496879][   T73]      ___sys_sendmsg+0xee/0x170
[  456.496879][   T73]      __sys_sendmsg+0xcd/0x170
[  456.496879][   T73]      do_syscall_64+0xc6/0x1e0
[  456.496879][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  456.496879][   T73] 
[  456.499048][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  456.499048][   T73]      netdev_get_by_index+0x5e/0x80
[  456.499048][   T73]      fib6_nh_init+0x3d8/0x1580
[  456.499048][   T73]      ip6_route_info_create+0xf18/0x17d0
[  456.499048][   T73]      addrconf_f6i_alloc+0x315/0x560
[  456.499048][   T73]      ipv6_add_addr+0x411/0x2000
[  456.499048][   T73]      inet6_addr_add+0x30e/0xa40
[  456.499048][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  456.499048][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  456.499048][   T73]      netlink_rcv_skb+0x130/0x360
[  456.499048][   T73]      netlink_unicast+0x449/0x710
[  456.499048][   T73]      netlink_sendmsg+0x723/0xbe0
[  456.499048][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  456.499048][   T73]      ___sys_sendmsg+0xee/0x170
[  456.499048][   T73]      __sys_sendmsg+0xcd/0x170
[  456.499048][   T73]      do_syscall_64+0xc6/0x1e0
[  456.499048][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  456.499048][   T73] 
[  456.501340][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  456.501340][   T73]      netdev_get_by_index+0x5e/0x80
[  456.501340][   T73]      fib6_nh_init+0x3d8/0x1580
[  456.501340][   T73]      ip6_route_info_create+0xf18/0x17d0
[  456.501340][   T73]      ip6_route_add+0x1c/0x140
[  456.501340][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  456.501340][   T73]      addrconf_add_dev+0xe2/0x170
[  456.501340][   T73]      inet6_addr_add+0x12f/0xa40
[  456.501340][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  456.501340][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  456.501340][   T73]      netlink_rcv_skb+0x130/0x360
[  456.501340][   T73]      netlink_unicast+0x449/0x710
[  456.501340][   T73]      netlink_sendmsg+0x723/0xbe0
[  456.501340][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  456.501340][   T73]      ___sys_sendmsg+0xee/0x170
[  456.501340][   T73]      __sys_sendmsg+0xcd/0x170
[  456.501340][   T73]      do_syscall_64+0xc6/0x1e0
[  456.501340][   T73] 
[  456.503587][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  456.503587][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  456.503587][   T73]      ipv6_find_idev+0x102/0x170
[  456.503587][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  456.503587][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  456.503587][   T73]      netlink_rcv_skb+0x130/0x360
[  456.503587][   T73]      netlink_unicast+0x449/0x710
[  456.503587][   T73]      netlink_sendmsg+0x723/0xbe0
[  456.503587][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  456.503587][   T73]      ___sys_sendmsg+0xee/0x170
[  456.503587][   T73]      __sys_sendmsg+0xcd/0x170
[  456.503587][   T73]      do_syscall_64+0xc6/0x1e0
[  456.503587][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  456.503587][   T73] 
[  456.505339][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  456.505339][   T73]      neigh_parms_alloc+0x1e5/0x510
[  456.505339][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  456.505339][   T73]      ipv6_find_idev+0x102/0x170
[  456.505339][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  456.505339][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  456.505339][   T73]      netlink_rcv_skb+0x130/0x360
[  456.505339][   T73]      netlink_unicast+0x449/0x710
[  456.505339][   T73]      netlink_sendmsg+0x723/0xbe0
[  456.505339][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  456.505339][   T73]      ___sys_sendmsg+0xee/0x170
[  456.505339][   T73]      __sys_sendmsg+0xcd/0x170
[  456.505339][   T73]      do_syscall_64+0xc6/0x1e0
[  456.505339][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  456.505339][   T73] 
[  456.507295][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  456.507614][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  456.507614][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  456.507614][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  456.507614][   T73]      fib6_nh_init+0xa22/0x1580
[  456.507614][   T73]      ip6_route_info_create+0xf18/0x17d0
[  456.507614][   T73]      ip6_route_add+0x1c/0x140
[  456.507614][   T73]      inet6_rtm_newroute+0x104/0x110
[  456.507614][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  456.507614][   T73]      netlink_rcv_skb+0x130/0x360
[  456.507614][   T73]      netlink_unicast+0x449/0x710
[  456.507614][   T73]      netlink_sendmsg+0x723/0xbe0
[  456.507614][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  456.507614][   T73]      ___sys_sendmsg+0xee/0x170
[  456.507614][   T73]      __sys_sendmsg+0xcd/0x170
[  456.507614][   T73]      do_syscall_64+0xc6/0x1e0
[  456.507614][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  456.507614][   T73] 
[  456.509905][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  456.509905][   T73]      dst_init+0x84/0x4a0
[  456.509905][   T73]      dst_alloc+0x97/0x150
[  456.509905][   T73]      ip6_dst_alloc+0x23/0x90
[  456.509905][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  456.509905][   T73]      ip6_pol_route+0x56f/0x840
[  456.509905][   T73]      fib6_rule_lookup+0x456/0x630
[  456.509905][   T73]      ip6_route_input+0x59c/0xa50
[  456.509905][   T73]      ipv6_rcv+0x397/0x810
[  456.509905][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  456.509905][   T73]      process_backlog+0x101/0x620
[  456.509905][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  456.509905][   T73]      net_rx_action+0x495/0xbe0
[  456.509905][   T73]      __do_softirq+0x1b5/0x7f6
[  456.509905][   T73] 
[  456.511983][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  456.511983][   T73]      netdev_get_by_index+0x5e/0x80
[  456.511983][   T73]      fib6_nh_init+0x3d8/0x1580
[  456.511983][   T73]      ip6_route_info_create+0xf18/0x17d0
[  456.511983][   T73]      ip6_route_add+0x1c/0x140
[  456.511983][   T73]      addrconf_prefix_route+0x2a6/0x430
[  456.511983][   T73]      inet6_addr_add+0x4f8/0xa40
[  456.511983][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  456.511983][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  456.511983][   T73]      netlink_rcv_skb+0x130/0x360
[  456.511983][   T73]      netlink_unicast+0x449/0x710
[  456.511983][   T73]      netlink_sendmsg+0x723/0xbe0
[  456.511983][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  456.511983][   T73]      ___sys_sendmsg+0xee/0x170
[  456.511983][   T73]      __sys_sendmsg+0xcd/0x170
[  456.511983][   T73]      do_syscall_64+0xc6/0x1e0
[  456.511983][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  456.511983][   T73] 
[  456.514471][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  456.514471][   T73]      netdev_get_by_index+0x5e/0x80
[  456.514471][   T73]      fib6_nh_init+0x3d8/0x1580
[  456.514471][   T73]      ip6_route_info_create+0xf18/0x17d0
[  456.514471][   T73]      addrconf_f6i_alloc+0x315/0x560
[  456.514471][   T73]      ipv6_add_addr+0x411/0x2000
[  456.514471][   T73]      inet6_addr_add+0x30e/0xa40
[  456.514471][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  456.514471][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  456.514471][   T73]      netlink_rcv_skb+0x130/0x360
[  456.514471][   T73]      netlink_unicast+0x449/0x710
[  456.514471][   T73]      netlink_sendmsg+0x723/0xbe0
[  456.514471][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  456.514471][   T73]      ___sys_sendmsg+0xee/0x170
[  456.514471][   T73]      __sys_sendmsg+0xcd/0x170
[  456.514471][   T73]      do_syscall_64+0xc6/0x1e0
[  456.514471][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  456.514471][   T73] 
[  456.517028][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  456.517028][   T73]      netdev_get_by_index+0x5e/0x80
[  456.517028][   T73]      fib6_nh_init+0x3d8/0x1580
[  456.517028][   T73]      ip6_route_info_create+0xf18/0x17d0
[  456.517028][   T73]      ip6_route_add+0x1c/0x140
[  456.517028][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  456.517028][   T73]      addrconf_add_dev+0xe2/0x170
[  456.517028][   T73]      inet6_addr_add+0x12f/0xa40
[  456.517028][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  456.517028][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  456.517028][   T73]      netlink_rcv_skb+0x130/0x360
[  456.517028][   T73]      netlink_unicast+0x449/0x710
[  456.517028][   T73]      netlink_sendmsg+0x723/0xbe0
[  456.517028][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  456.517028][   T73]      ___sys_sendmsg+0xee/0x170
[  456.517028][   T73]      __sys_sendmsg+0xcd/0x170
[  456.517028][   T73]      do_syscall_64+0xc6/0x1e0
[  456.517028][   T73] 
[  456.519551][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  456.519551][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  456.519551][   T73]      ipv6_find_idev+0x102/0x170
[  456.519551][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  456.519551][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  456.519551][   T73]      netlink_rcv_skb+0x130/0x360
[  456.519551][   T73]      netlink_unicast+0x449/0x710
[  456.519551][   T73]      netlink_sendmsg+0x723/0xbe0
[  456.519551][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  456.519551][   T73]      ___sys_sendmsg+0xee/0x170
[  456.519551][   T73]      __sys_sendmsg+0xcd/0x170
[  456.519551][   T73]      do_syscall_64+0xc6/0x1e0
[  456.519551][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  456.519551][   T73] 
[  456.521489][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  456.521489][   T73]      neigh_parms_alloc+0x1e5/0x510
[  456.521489][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  456.521489][   T73]      ipv6_find_idev+0x102/0x170
[  456.521489][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  456.521489][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  456.521489][   T73]      netlink_rcv_skb+0x130/0x360
[  456.521489][   T73]      netlink_unicast+0x449/0x710
[  456.521489][   T73]      netlink_sendmsg+0x723/0xbe0
[  456.521489][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  456.521489][   T73]      ___sys_sendmsg+0xee/0x170
[  456.521489][   T73]      __sys_sendmsg+0xcd/0x170
[  456.521489][   T73]      do_syscall_64+0xc6/0x1e0
[  456.521489][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  456.521489][   T73] 
[  456.523698][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  456.524054][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  456.524054][   T73]      netdev_get_by_index+0x5e/0x80
[  456.524054][   T73]      fib6_nh_init+0x3d8/0x1580
[  456.524054][   T73]      ip6_route_info_create+0xf18/0x17d0
[  456.524054][   T73]      addrconf_f6i_alloc+0x265/0x560
[  456.524054][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  456.524054][   T73]      addrconf_join_anycast+0x1c0/0x220
[  456.524054][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  456.524054][   T73]      addrconf_dad_completed+0x12b/0xe20
[  456.524054][   T73]      addrconf_dad_begin+0x310/0x670
[  456.524054][   T73]      addrconf_dad_work+0x10b/0xab0
[  456.524054][   T73]      process_one_work+0x84d/0x18a0
[  456.524054][   T73]      worker_thread+0x587/0xd30
[  456.524054][   T73]      kthread+0x28a/0x350
[  456.524054][   T73]      ret_from_fork+0x31/0x70
[  456.524054][   T73]      ret_from_fork_asm+0x1a/0x30
[  456.524054][   T73] 
[  456.526391][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  456.526391][   T73]      netdev_get_by_index+0x5e/0x80
[  456.526391][   T73]      fib6_nh_init+0x3d8/0x1580
[  456.526391][   T73]      ip6_route_info_create+0xf18/0x17d0
[  456.526391][   T73]      ip6_route_add+0x1c/0x140
[  456.526391][   T73]      addrconf_prefix_route+0x2a6/0x430
[  456.526391][   T73]      inet6_addr_add+0x4f8/0xa40
[  456.526391][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  456.526391][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  456.526391][   T73]      netlink_rcv_skb+0x130/0x360
[  456.526391][   T73]      netlink_unicast+0x449/0x710
[  456.526391][   T73]      netlink_sendmsg+0x723/0xbe0
[  456.526391][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  456.526391][   T73]      ___sys_sendmsg+0xee/0x170
[  456.526391][   T73]      __sys_sendmsg+0xcd/0x170
[  456.526391][   T73]      do_syscall_64+0xc6/0x1e0
[  456.526391][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  456.526391][   T73] 
[  456.528817][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  456.528817][   T73]      netdev_get_by_index+0x5e/0x80
[  456.528817][   T73]      fib6_nh_init+0x3d8/0x1580
[  456.528817][   T73]      ip6_route_info_create+0xf18/0x17d0
[  456.528817][   T73]      addrconf_f6i_alloc+0x315/0x560
[  456.528817][   T73]      ipv6_add_addr+0x411/0x2000
[  456.528817][   T73]      inet6_addr_add+0x30e/0xa40
[  456.528817][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  456.528817][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  456.528817][   T73]      netlink_rcv_skb+0x130/0x360
[  456.528817][   T73]      netlink_unicast+0x449/0x710
[  456.528817][   T73]      netlink_sendmsg+0x723/0xbe0
[  456.528817][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  456.528817][   T73]      ___sys_sendmsg+0xee/0x170
[  456.528817][   T73]      __sys_sendmsg+0xcd/0x170
[  456.528817][   T73]      do_syscall_64+0xc6/0x1e0
[  456.528817][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  456.528817][   T73] 
[  456.531250][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  456.531250][   T73]      netdev_get_by_index+0x5e/0x80
[  456.531250][   T73]      fib6_nh_init+0x3d8/0x1580
[  456.531250][   T73]      ip6_route_info_create+0xf18/0x17d0
[  456.531250][   T73]      ip6_route_add+0x1c/0x140
[  456.531250][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  456.531250][   T73]      addrconf_add_dev+0xe2/0x170
[  456.531250][   T73]      inet6_addr_add+0x12f/0xa40
[  456.531250][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  456.531250][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  456.531250][   T73]      netlink_rcv_skb+0x130/0x360
[  456.531250][   T73]      netlink_unicast+0x449/0x710
[  456.531250][   T73]      netlink_sendmsg+0x723/0xbe0
[  456.531250][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  456.531250][   T73]      ___sys_sendmsg+0xee/0x170
[  456.531250][   T73]      __sys_sendmsg+0xcd/0x170
[  456.531250][   T73]      do_syscall_64+0xc6/0x1e0
[  456.531250][   T73] 
[  456.533745][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  456.533745][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  456.533745][   T73]      ipv6_find_idev+0x102/0x170
[  456.533745][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  456.533745][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  456.533745][   T73]      netlink_rcv_skb+0x130/0x360
[  456.533745][   T73]      netlink_unicast+0x449/0x710
[  456.533745][   T73]      netlink_sendmsg+0x723/0xbe0
[  456.533745][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  456.533745][   T73]      ___sys_sendmsg+0xee/0x170
[  456.533745][   T73]      __sys_sendmsg+0xcd/0x170
[  456.533745][   T73]      do_syscall_64+0xc6/0x1e0
[  456.533745][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  456.533745][   T73] 
[  456.535615][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  456.535615][   T73]      neigh_parms_alloc+0x1e5/0x510
[  456.535615][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  456.535615][   T73]      ipv6_find_idev+0x102/0x170
[  456.535615][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  456.535615][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  456.535615][   T73]      netlink_rcv_skb+0x130/0x360
[  456.535615][   T73]      netlink_unicast+0x449/0x710
[  456.535615][   T73]      netlink_sendmsg+0x723/0xbe0
[  456.535615][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  456.535615][   T73]      ___sys_sendmsg+0xee/0x170
[  456.535615][   T73]      __sys_sendmsg+0xcd/0x170
[  456.535615][   T73]      do_syscall_64+0xc6/0x1e0
[  456.535615][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  456.535615][   T73] 
[  466.591792][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  466.592282][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  466.592282][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  466.592282][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  466.592282][   T73]      fib6_nh_init+0xa22/0x1580
[  466.592282][   T73]      ip6_route_info_create+0xf18/0x17d0
[  466.592282][   T73]      ip6_route_add+0x1c/0x140
[  466.592282][   T73]      inet6_rtm_newroute+0x104/0x110
[  466.592282][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  466.592282][   T73]      netlink_rcv_skb+0x130/0x360
[  466.592282][   T73]      netlink_unicast+0x449/0x710
[  466.592282][   T73]      netlink_sendmsg+0x723/0xbe0
[  466.592282][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  466.592282][   T73]      ___sys_sendmsg+0xee/0x170
[  466.592282][   T73]      __sys_sendmsg+0xcd/0x170
[  466.592282][   T73]      do_syscall_64+0xc6/0x1e0
[  466.592282][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  466.592282][   T73] 
[  466.594404][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  466.594404][   T73]      dst_init+0x84/0x4a0
[  466.594404][   T73]      dst_alloc+0x97/0x150
[  466.594404][   T73]      ip6_dst_alloc+0x23/0x90
[  466.594404][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  466.594404][   T73]      ip6_pol_route+0x56f/0x840
[  466.594404][   T73]      fib6_rule_lookup+0x456/0x630
[  466.594404][   T73]      ip6_route_input+0x59c/0xa50
[  466.594404][   T73]      ipv6_rcv+0x397/0x810
[  466.594404][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  466.594404][   T73]      process_backlog+0x101/0x620
[  466.594404][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  466.594404][   T73]      net_rx_action+0x495/0xbe0
[  466.594404][   T73]      __do_softirq+0x1b5/0x7f6
[  466.594404][   T73] 
[  466.596277][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  466.596277][   T73]      netdev_get_by_index+0x5e/0x80
[  466.596277][   T73]      fib6_nh_init+0x3d8/0x1580
[  466.596277][   T73]      ip6_route_info_create+0xf18/0x17d0
[  466.596277][   T73]      ip6_route_add+0x1c/0x140
[  466.596277][   T73]      addrconf_prefix_route+0x2a6/0x430
[  466.596277][   T73]      inet6_addr_add+0x4f8/0xa40
[  466.596277][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  466.596277][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  466.596277][   T73]      netlink_rcv_skb+0x130/0x360
[  466.596277][   T73]      netlink_unicast+0x449/0x710
[  466.596277][   T73]      netlink_sendmsg+0x723/0xbe0
[  466.596277][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  466.596277][   T73]      ___sys_sendmsg+0xee/0x170
[  466.596277][   T73]      __sys_sendmsg+0xcd/0x170
[  466.596277][   T73]      do_syscall_64+0xc6/0x1e0
[  466.596277][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  466.596277][   T73] 
[  466.598497][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  466.598497][   T73]      netdev_get_by_index+0x5e/0x80
[  466.598497][   T73]      fib6_nh_init+0x3d8/0x1580
[  466.598497][   T73]      ip6_route_info_create+0xf18/0x17d0
[  466.598497][   T73]      addrconf_f6i_alloc+0x315/0x560
[  466.598497][   T73]      ipv6_add_addr+0x411/0x2000
[  466.598497][   T73]      inet6_addr_add+0x30e/0xa40
[  466.598497][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  466.598497][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  466.598497][   T73]      netlink_rcv_skb+0x130/0x360
[  466.598497][   T73]      netlink_unicast+0x449/0x710
[  466.598497][   T73]      netlink_sendmsg+0x723/0xbe0
[  466.598497][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  466.598497][   T73]      ___sys_sendmsg+0xee/0x170
[  466.598497][   T73]      __sys_sendmsg+0xcd/0x170
[  466.598497][   T73]      do_syscall_64+0xc6/0x1e0
[  466.598497][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  466.598497][   T73] 
[  466.600705][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  466.600705][   T73]      netdev_get_by_index+0x5e/0x80
[  466.600705][   T73]      fib6_nh_init+0x3d8/0x1580
[  466.600705][   T73]      ip6_route_info_create+0xf18/0x17d0
[  466.600705][   T73]      ip6_route_add+0x1c/0x140
[  466.600705][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  466.600705][   T73]      addrconf_add_dev+0xe2/0x170
[  466.600705][   T73]      inet6_addr_add+0x12f/0xa40
[  466.600705][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  466.600705][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  466.600705][   T73]      netlink_rcv_skb+0x130/0x360
[  466.600705][   T73]      netlink_unicast+0x449/0x710
[  466.600705][   T73]      netlink_sendmsg+0x723/0xbe0
[  466.600705][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  466.600705][   T73]      ___sys_sendmsg+0xee/0x170
[  466.600705][   T73]      __sys_sendmsg+0xcd/0x170
[  466.600705][   T73]      do_syscall_64+0xc6/0x1e0
[  466.600705][   T73] 
[  466.602767][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  466.602767][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  466.602767][   T73]      ipv6_find_idev+0x102/0x170
[  466.602767][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  466.602767][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  466.602767][   T73]      netlink_rcv_skb+0x130/0x360
[  466.602767][   T73]      netlink_unicast+0x449/0x710
[  466.602767][   T73]      netlink_sendmsg+0x723/0xbe0
[  466.602767][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  466.602767][   T73]      ___sys_sendmsg+0xee/0x170
[  466.602767][   T73]      __sys_sendmsg+0xcd/0x170
[  466.602767][   T73]      do_syscall_64+0xc6/0x1e0
[  466.602767][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  466.602767][   T73] 
[  466.604327][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  466.604327][   T73]      neigh_parms_alloc+0x1e5/0x510
[  466.604327][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  466.604327][   T73]      ipv6_find_idev+0x102/0x170
[  466.604327][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  466.604327][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  466.604327][   T73]      netlink_rcv_skb+0x130/0x360
[  466.604327][   T73]      netlink_unicast+0x449/0x710
[  466.604327][   T73]      netlink_sendmsg+0x723/0xbe0
[  466.604327][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  466.604327][   T73]      ___sys_sendmsg+0xee/0x170
[  466.604327][   T73]      __sys_sendmsg+0xcd/0x170
[  466.604327][   T73]      do_syscall_64+0xc6/0x1e0
[  466.604327][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  466.604327][   T73] 
[  466.606094][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  466.606387][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  466.606387][   T73]      netdev_get_by_index+0x5e/0x80
[  466.606387][   T73]      fib6_nh_init+0x3d8/0x1580
[  466.606387][   T73]      ip6_route_info_create+0xf18/0x17d0
[  466.606387][   T73]      addrconf_f6i_alloc+0x265/0x560
[  466.606387][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  466.606387][   T73]      addrconf_join_anycast+0x1c0/0x220
[  466.606387][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  466.606387][   T73]      addrconf_dad_completed+0x12b/0xe20
[  466.606387][   T73]      addrconf_dad_begin+0x310/0x670
[  466.606387][   T73]      addrconf_dad_work+0x10b/0xab0
[  466.606387][   T73]      process_one_work+0x84d/0x18a0
[  466.606387][   T73]      worker_thread+0x587/0xd30
[  466.606387][   T73]      kthread+0x28a/0x350
[  466.606387][   T73]      ret_from_fork+0x31/0x70
[  466.606387][   T73]      ret_from_fork_asm+0x1a/0x30
[  466.606387][   T73] 
[  466.608492][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  466.608492][   T73]      netdev_get_by_index+0x5e/0x80
[  466.608492][   T73]      fib6_nh_init+0x3d8/0x1580
[  466.608492][   T73]      ip6_route_info_create+0xf18/0x17d0
[  466.608492][   T73]      ip6_route_add+0x1c/0x140
[  466.608492][   T73]      addrconf_prefix_route+0x2a6/0x430
[  466.608492][   T73]      inet6_addr_add+0x4f8/0xa40
[  466.608492][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  466.608492][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  466.608492][   T73]      netlink_rcv_skb+0x130/0x360
[  466.608492][   T73]      netlink_unicast+0x449/0x710
[  466.608492][   T73]      netlink_sendmsg+0x723/0xbe0
[  466.608492][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  466.608492][   T73]      ___sys_sendmsg+0xee/0x170
[  466.608492][   T73]      __sys_sendmsg+0xcd/0x170
[  466.608492][   T73]      do_syscall_64+0xc6/0x1e0
[  466.608492][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  466.608492][   T73] 
[  466.610500][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  466.610500][   T73]      netdev_get_by_index+0x5e/0x80
[  466.610500][   T73]      fib6_nh_init+0x3d8/0x1580
[  466.610500][   T73]      ip6_route_info_create+0xf18/0x17d0
[  466.610500][   T73]      addrconf_f6i_alloc+0x315/0x560
[  466.610500][   T73]      ipv6_add_addr+0x411/0x2000
[  466.610500][   T73]      inet6_addr_add+0x30e/0xa40
[  466.610500][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  466.610500][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  466.610500][   T73]      netlink_rcv_skb+0x130/0x360
[  466.610500][   T73]      netlink_unicast+0x449/0x710
[  466.610500][   T73]      netlink_sendmsg+0x723/0xbe0
[  466.610500][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  466.610500][   T73]      ___sys_sendmsg+0xee/0x170
[  466.610500][   T73]      __sys_sendmsg+0xcd/0x170
[  466.610500][   T73]      do_syscall_64+0xc6/0x1e0
[  466.610500][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  466.610500][   T73] 
[  466.612504][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  466.612504][   T73]      netdev_get_by_index+0x5e/0x80
[  466.612504][   T73]      fib6_nh_init+0x3d8/0x1580
[  466.612504][   T73]      ip6_route_info_create+0xf18/0x17d0
[  466.612504][   T73]      ip6_route_add+0x1c/0x140
[  466.612504][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  466.612504][   T73]      addrconf_add_dev+0xe2/0x170
[  466.612504][   T73]      inet6_addr_add+0x12f/0xa40
[  466.612504][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  466.612504][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  466.612504][   T73]      netlink_rcv_skb+0x130/0x360
[  466.612504][   T73]      netlink_unicast+0x449/0x710
[  466.612504][   T73]      netlink_sendmsg+0x723/0xbe0
[  466.612504][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  466.612504][   T73]      ___sys_sendmsg+0xee/0x170
[  466.612504][   T73]      __sys_sendmsg+0xcd/0x170
[  466.612504][   T73]      do_syscall_64+0xc6/0x1e0
[  466.612504][   T73] 
[  466.614645][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  466.614645][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  466.614645][   T73]      ipv6_find_idev+0x102/0x170
[  466.614645][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  466.614645][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  466.614645][   T73]      netlink_rcv_skb+0x130/0x360
[  466.614645][   T73]      netlink_unicast+0x449/0x710
[  466.614645][   T73]      netlink_sendmsg+0x723/0xbe0
[  466.614645][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  466.614645][   T73]      ___sys_sendmsg+0xee/0x170
[  466.614645][   T73]      __sys_sendmsg+0xcd/0x170
[  466.614645][   T73]      do_syscall_64+0xc6/0x1e0
[  466.614645][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  466.614645][   T73] 
[  466.616349][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  466.616349][   T73]      neigh_parms_alloc+0x1e5/0x510
[  466.616349][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  466.616349][   T73]      ipv6_find_idev+0x102/0x170
[  466.616349][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  466.616349][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  466.616349][   T73]      netlink_rcv_skb+0x130/0x360
[  466.616349][   T73]      netlink_unicast+0x449/0x710
[  466.616349][   T73]      netlink_sendmsg+0x723/0xbe0
[  466.616349][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  466.616349][   T73]      ___sys_sendmsg+0xee/0x170
[  466.616349][   T73]      __sys_sendmsg+0xcd/0x170
[  466.616349][   T73]      do_syscall_64+0xc6/0x1e0
[  466.616349][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  466.616349][   T73] 
[  466.618241][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  466.618535][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  466.618535][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  466.618535][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  466.618535][   T73]      fib6_nh_init+0xa22/0x1580
[  466.618535][   T73]      ip6_route_info_create+0xf18/0x17d0
[  466.618535][   T73]      ip6_route_add+0x1c/0x140
[  466.618535][   T73]      inet6_rtm_newroute+0x104/0x110
[  466.618535][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  466.618535][   T73]      netlink_rcv_skb+0x130/0x360
[  466.618535][   T73]      netlink_unicast+0x449/0x710
[  466.618535][   T73]      netlink_sendmsg+0x723/0xbe0
[  466.618535][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  466.618535][   T73]      ___sys_sendmsg+0xee/0x170
[  466.618535][   T73]      __sys_sendmsg+0xcd/0x170
[  466.618535][   T73]      do_syscall_64+0xc6/0x1e0
[  466.618535][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  466.618535][   T73] 
[  466.620749][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  466.620749][   T73]      dst_init+0x84/0x4a0
[  466.620749][   T73]      dst_alloc+0x97/0x150
[  466.620749][   T73]      ip6_dst_alloc+0x23/0x90
[  466.620749][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  466.620749][   T73]      ip6_pol_route+0x56f/0x840
[  466.620749][   T73]      fib6_rule_lookup+0x456/0x630
[  466.620749][   T73]      ip6_route_input+0x59c/0xa50
[  466.620749][   T73]      ipv6_rcv+0x397/0x810
[  466.620749][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  466.620749][   T73]      process_backlog+0x101/0x620
[  466.620749][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  466.620749][   T73]      net_rx_action+0x495/0xbe0
[  466.620749][   T73]      __do_softirq+0x1b5/0x7f6
[  466.620749][   T73] 
[  466.622785][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  466.622785][   T73]      netdev_get_by_index+0x5e/0x80
[  466.622785][   T73]      fib6_nh_init+0x3d8/0x1580
[  466.622785][   T73]      ip6_route_info_create+0xf18/0x17d0
[  466.622785][   T73]      ip6_route_add+0x1c/0x140
[  466.622785][   T73]      addrconf_prefix_route+0x2a6/0x430
[  466.622785][   T73]      inet6_addr_add+0x4f8/0xa40
[  466.622785][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  466.622785][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  466.622785][   T73]      netlink_rcv_skb+0x130/0x360
[  466.622785][   T73]      netlink_unicast+0x449/0x710
[  466.622785][   T73]      netlink_sendmsg+0x723/0xbe0
[  466.622785][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  466.622785][   T73]      ___sys_sendmsg+0xee/0x170
[  466.622785][   T73]      __sys_sendmsg+0xcd/0x170
[  466.622785][   T73]      do_syscall_64+0xc6/0x1e0
[  466.622785][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  466.622785][   T73] 
[  466.625272][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  466.625272][   T73]      netdev_get_by_index+0x5e/0x80
[  466.625272][   T73]      fib6_nh_init+0x3d8/0x1580
[  466.625272][   T73]      ip6_route_info_create+0xf18/0x17d0
[  466.625272][   T73]      addrconf_f6i_alloc+0x315/0x560
[  466.625272][   T73]      ipv6_add_addr+0x411/0x2000
[  466.625272][   T73]      inet6_addr_add+0x30e/0xa40
[  466.625272][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  466.625272][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  466.625272][   T73]      netlink_rcv_skb+0x130/0x360
[  466.625272][   T73]      netlink_unicast+0x449/0x710
[  466.625272][   T73]      netlink_sendmsg+0x723/0xbe0
[  466.625272][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  466.625272][   T73]      ___sys_sendmsg+0xee/0x170
[  466.625272][   T73]      __sys_sendmsg+0xcd/0x170
[  466.625272][   T73]      do_syscall_64+0xc6/0x1e0
[  466.625272][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  466.625272][   T73] 
[  466.627723][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  466.627723][   T73]      netdev_get_by_index+0x5e/0x80
[  466.627723][   T73]      fib6_nh_init+0x3d8/0x1580
[  466.627723][   T73]      ip6_route_info_create+0xf18/0x17d0
[  466.627723][   T73]      ip6_route_add+0x1c/0x140
[  466.627723][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  466.627723][   T73]      addrconf_add_dev+0xe2/0x170
[  466.627723][   T73]      inet6_addr_add+0x12f/0xa40
[  466.627723][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  466.627723][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  466.627723][   T73]      netlink_rcv_skb+0x130/0x360
[  466.627723][   T73]      netlink_unicast+0x449/0x710
[  466.627723][   T73]      netlink_sendmsg+0x723/0xbe0
[  466.627723][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  466.627723][   T73]      ___sys_sendmsg+0xee/0x170
[  466.627723][   T73]      __sys_sendmsg+0xcd/0x170
[  466.627723][   T73]      do_syscall_64+0xc6/0x1e0
[  466.627723][   T73] 
[  466.630196][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  466.630196][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  466.630196][   T73]      ipv6_find_idev+0x102/0x170
[  466.630196][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  466.630196][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  466.630196][   T73]      netlink_rcv_skb+0x130/0x360
[  466.630196][   T73]      netlink_unicast+0x449/0x710
[  466.630196][   T73]      netlink_sendmsg+0x723/0xbe0
[  466.630196][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  466.630196][   T73]      ___sys_sendmsg+0xee/0x170
[  466.630196][   T73]      __sys_sendmsg+0xcd/0x170
[  466.630196][   T73]      do_syscall_64+0xc6/0x1e0
[  466.630196][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  466.630196][   T73] 
[  466.632080][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  466.632080][   T73]      neigh_parms_alloc+0x1e5/0x510
[  466.632080][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  466.632080][   T73]      ipv6_find_idev+0x102/0x170
[  466.632080][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  466.632080][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  466.632080][   T73]      netlink_rcv_skb+0x130/0x360
[  466.632080][   T73]      netlink_unicast+0x449/0x710
[  466.632080][   T73]      netlink_sendmsg+0x723/0xbe0
[  466.632080][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  466.632080][   T73]      ___sys_sendmsg+0xee/0x170
[  466.632080][   T73]      __sys_sendmsg+0xcd/0x170
[  466.632080][   T73]      do_syscall_64+0xc6/0x1e0
[  466.632080][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  466.632080][   T73] 
[  466.634052][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  466.634413][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  466.634413][   T73]      netdev_get_by_index+0x5e/0x80
[  466.634413][   T73]      fib6_nh_init+0x3d8/0x1580
[  466.634413][   T73]      ip6_route_info_create+0xf18/0x17d0
[  466.634413][   T73]      addrconf_f6i_alloc+0x265/0x560
[  466.634413][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  466.634413][   T73]      addrconf_join_anycast+0x1c0/0x220
[  466.634413][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  466.634413][   T73]      addrconf_dad_completed+0x12b/0xe20
[  466.634413][   T73]      addrconf_dad_begin+0x310/0x670
[  466.634413][   T73]      addrconf_dad_work+0x10b/0xab0
[  466.634413][   T73]      process_one_work+0x84d/0x18a0
[  466.634413][   T73]      worker_thread+0x587/0xd30
[  466.634413][   T73]      kthread+0x28a/0x350
[  466.634413][   T73]      ret_from_fork+0x31/0x70
[  466.634413][   T73]      ret_from_fork_asm+0x1a/0x30
[  466.634413][   T73] 
[  466.636510][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  466.636510][   T73]      netdev_get_by_index+0x5e/0x80
[  466.636510][   T73]      fib6_nh_init+0x3d8/0x1580
[  466.636510][   T73]      ip6_route_info_create+0xf18/0x17d0
[  466.636510][   T73]      ip6_route_add+0x1c/0x140
[  466.636510][   T73]      addrconf_prefix_route+0x2a6/0x430
[  466.636510][   T73]      inet6_addr_add+0x4f8/0xa40
[  466.636510][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  466.636510][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  466.636510][   T73]      netlink_rcv_skb+0x130/0x360
[  466.636510][   T73]      netlink_unicast+0x449/0x710
[  466.636510][   T73]      netlink_sendmsg+0x723/0xbe0
[  466.636510][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  466.636510][   T73]      ___sys_sendmsg+0xee/0x170
[  466.636510][   T73]      __sys_sendmsg+0xcd/0x170
[  466.636510][   T73]      do_syscall_64+0xc6/0x1e0
[  466.636510][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  466.636510][   T73] 
[  466.638750][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  466.638750][   T73]      netdev_get_by_index+0x5e/0x80
[  466.638750][   T73]      fib6_nh_init+0x3d8/0x1580
[  466.638750][   T73]      ip6_route_info_create+0xf18/0x17d0
[  466.638750][   T73]      addrconf_f6i_alloc+0x315/0x560
[  466.638750][   T73]      ipv6_add_addr+0x411/0x2000
[  466.638750][   T73]      inet6_addr_add+0x30e/0xa40
[  466.638750][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  466.638750][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  466.638750][   T73]      netlink_rcv_skb+0x130/0x360
[  466.638750][   T73]      netlink_unicast+0x449/0x710
[  466.638750][   T73]      netlink_sendmsg+0x723/0xbe0
[  466.638750][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  466.638750][   T73]      ___sys_sendmsg+0xee/0x170
[  466.638750][   T73]      __sys_sendmsg+0xcd/0x170
[  466.638750][   T73]      do_syscall_64+0xc6/0x1e0
[  466.638750][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  466.638750][   T73] 
[  466.641052][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  466.641052][   T73]      netdev_get_by_index+0x5e/0x80
[  466.641052][   T73]      fib6_nh_init+0x3d8/0x1580
[  466.641052][   T73]      ip6_route_info_create+0xf18/0x17d0
[  466.641052][   T73]      ip6_route_add+0x1c/0x140
[  466.641052][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  466.641052][   T73]      addrconf_add_dev+0xe2/0x170
[  466.641052][   T73]      inet6_addr_add+0x12f/0xa40
[  466.641052][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  466.641052][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  466.641052][   T73]      netlink_rcv_skb+0x130/0x360
[  466.641052][   T73]      netlink_unicast+0x449/0x710
[  466.641052][   T73]      netlink_sendmsg+0x723/0xbe0
[  466.641052][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  466.641052][   T73]      ___sys_sendmsg+0xee/0x170
[  466.641052][   T73]      __sys_sendmsg+0xcd/0x170
[  466.641052][   T73]      do_syscall_64+0xc6/0x1e0
[  466.641052][   T73] 
[  466.643428][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  466.643428][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  466.643428][   T73]      ipv6_find_idev+0x102/0x170
[  466.643428][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  466.643428][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  466.643428][   T73]      netlink_rcv_skb+0x130/0x360
[  466.643428][   T73]      netlink_unicast+0x449/0x710
[  466.643428][   T73]      netlink_sendmsg+0x723/0xbe0
[  466.643428][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  466.643428][   T73]      ___sys_sendmsg+0xee/0x170
[  466.643428][   T73]      __sys_sendmsg+0xcd/0x170
[  466.643428][   T73]      do_syscall_64+0xc6/0x1e0
[  466.643428][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  466.643428][   T73] 
[  466.645311][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  466.645311][   T73]      neigh_parms_alloc+0x1e5/0x510
[  466.645311][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  466.645311][   T73]      ipv6_find_idev+0x102/0x170
[  466.645311][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  466.645311][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  466.645311][   T73]      netlink_rcv_skb+0x130/0x360
[  466.645311][   T73]      netlink_unicast+0x449/0x710
[  466.645311][   T73]      netlink_sendmsg+0x723/0xbe0
[  466.645311][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  466.645311][   T73]      ___sys_sendmsg+0xee/0x170
[  466.645311][   T73]      __sys_sendmsg+0xcd/0x170
[  466.645311][   T73]      do_syscall_64+0xc6/0x1e0
[  466.645311][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  466.645311][   T73] 
[  476.847761][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  476.848366][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  476.848366][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  476.848366][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  476.848366][   T73]      fib6_nh_init+0xa22/0x1580
[  476.848366][   T73]      ip6_route_info_create+0xf18/0x17d0
[  476.848366][   T73]      ip6_route_add+0x1c/0x140
[  476.848366][   T73]      inet6_rtm_newroute+0x104/0x110
[  476.848366][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  476.848366][   T73]      netlink_rcv_skb+0x130/0x360
[  476.848366][   T73]      netlink_unicast+0x449/0x710
[  476.848366][   T73]      netlink_sendmsg+0x723/0xbe0
[  476.848366][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  476.848366][   T73]      ___sys_sendmsg+0xee/0x170
[  476.848366][   T73]      __sys_sendmsg+0xcd/0x170
[  476.848366][   T73]      do_syscall_64+0xc6/0x1e0
[  476.848366][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  476.848366][   T73] 
[  476.851386][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  476.851386][   T73]      dst_init+0x84/0x4a0
[  476.851386][   T73]      dst_alloc+0x97/0x150
[  476.851386][   T73]      ip6_dst_alloc+0x23/0x90
[  476.851386][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  476.851386][   T73]      ip6_pol_route+0x56f/0x840
[  476.851386][   T73]      fib6_rule_lookup+0x456/0x630
[  476.851386][   T73]      ip6_route_input+0x59c/0xa50
[  476.851386][   T73]      ipv6_rcv+0x397/0x810
[  476.851386][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  476.851386][   T73]      process_backlog+0x101/0x620
[  476.851386][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  476.851386][   T73]      net_rx_action+0x495/0xbe0
[  476.851386][   T73]      __do_softirq+0x1b5/0x7f6
[  476.851386][   T73] 
[  476.854036][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  476.854036][   T73]      netdev_get_by_index+0x5e/0x80
[  476.854036][   T73]      fib6_nh_init+0x3d8/0x1580
[  476.854036][   T73]      ip6_route_info_create+0xf18/0x17d0
[  476.854036][   T73]      ip6_route_add+0x1c/0x140
[  476.854036][   T73]      addrconf_prefix_route+0x2a6/0x430
[  476.854036][   T73]      inet6_addr_add+0x4f8/0xa40
[  476.854036][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  476.854036][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  476.854036][   T73]      netlink_rcv_skb+0x130/0x360
[  476.854036][   T73]      netlink_unicast+0x449/0x710
[  476.854036][   T73]      netlink_sendmsg+0x723/0xbe0
[  476.854036][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  476.854036][   T73]      ___sys_sendmsg+0xee/0x170
[  476.854036][   T73]      __sys_sendmsg+0xcd/0x170
[  476.854036][   T73]      do_syscall_64+0xc6/0x1e0
[  476.854036][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  476.854036][   T73] 
[  476.857247][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  476.857247][   T73]      netdev_get_by_index+0x5e/0x80
[  476.857247][   T73]      fib6_nh_init+0x3d8/0x1580
[  476.857247][   T73]      ip6_route_info_create+0xf18/0x17d0
[  476.857247][   T73]      addrconf_f6i_alloc+0x315/0x560
[  476.857247][   T73]      ipv6_add_addr+0x411/0x2000
[  476.857247][   T73]      inet6_addr_add+0x30e/0xa40
[  476.857247][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  476.857247][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  476.857247][   T73]      netlink_rcv_skb+0x130/0x360
[  476.857247][   T73]      netlink_unicast+0x449/0x710
[  476.857247][   T73]      netlink_sendmsg+0x723/0xbe0
[  476.857247][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  476.857247][   T73]      ___sys_sendmsg+0xee/0x170
[  476.857247][   T73]      __sys_sendmsg+0xcd/0x170
[  476.857247][   T73]      do_syscall_64+0xc6/0x1e0
[  476.857247][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  476.857247][   T73] 
[  476.860468][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  476.860468][   T73]      netdev_get_by_index+0x5e/0x80
[  476.860468][   T73]      fib6_nh_init+0x3d8/0x1580
[  476.860468][   T73]      ip6_route_info_create+0xf18/0x17d0
[  476.860468][   T73]      ip6_route_add+0x1c/0x140
[  476.860468][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  476.860468][   T73]      addrconf_add_dev+0xe2/0x170
[  476.860468][   T73]      inet6_addr_add+0x12f/0xa40
[  476.860468][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  476.860468][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  476.860468][   T73]      netlink_rcv_skb+0x130/0x360
[  476.860468][   T73]      netlink_unicast+0x449/0x710
[  476.860468][   T73]      netlink_sendmsg+0x723/0xbe0
[  476.860468][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  476.860468][   T73]      ___sys_sendmsg+0xee/0x170
[  476.860468][   T73]      __sys_sendmsg+0xcd/0x170
[  476.860468][   T73]      do_syscall_64+0xc6/0x1e0
[  476.860468][   T73] 
[  476.863604][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  476.863604][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  476.863604][   T73]      ipv6_find_idev+0x102/0x170
[  476.863604][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  476.863604][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  476.863604][   T73]      netlink_rcv_skb+0x130/0x360
[  476.863604][   T73]      netlink_unicast+0x449/0x710
[  476.863604][   T73]      netlink_sendmsg+0x723/0xbe0
[  476.863604][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  476.863604][   T73]      ___sys_sendmsg+0xee/0x170
[  476.863604][   T73]      __sys_sendmsg+0xcd/0x170
[  476.863604][   T73]      do_syscall_64+0xc6/0x1e0
[  476.863604][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  476.863604][   T73] 
[  476.866070][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  476.866070][   T73]      neigh_parms_alloc+0x1e5/0x510
[  476.866070][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  476.866070][   T73]      ipv6_find_idev+0x102/0x170
[  476.866070][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  476.866070][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  476.866070][   T73]      netlink_rcv_skb+0x130/0x360
[  476.866070][   T73]      netlink_unicast+0x449/0x710
[  476.866070][   T73]      netlink_sendmsg+0x723/0xbe0
[  476.866070][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  476.866070][   T73]      ___sys_sendmsg+0xee/0x170
[  476.866070][   T73]      __sys_sendmsg+0xcd/0x170
[  476.866070][   T73]      do_syscall_64+0xc6/0x1e0
[  476.866070][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  476.866070][   T73] 
[  476.868780][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  476.869217][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  476.869217][   T73]      netdev_get_by_index+0x5e/0x80
[  476.869217][   T73]      fib6_nh_init+0x3d8/0x1580
[  476.869217][   T73]      ip6_route_info_create+0xf18/0x17d0
[  476.869217][   T73]      addrconf_f6i_alloc+0x265/0x560
[  476.869217][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  476.869217][   T73]      addrconf_join_anycast+0x1c0/0x220
[  476.869217][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  476.869217][   T73]      addrconf_dad_completed+0x12b/0xe20
[  476.869217][   T73]      addrconf_dad_begin+0x310/0x670
[  476.869217][   T73]      addrconf_dad_work+0x10b/0xab0
[  476.869217][   T73]      process_one_work+0x84d/0x18a0
[  476.869217][   T73]      worker_thread+0x587/0xd30
[  476.869217][   T73]      kthread+0x28a/0x350
[  476.869217][   T73]      ret_from_fork+0x31/0x70
[  476.869217][   T73]      ret_from_fork_asm+0x1a/0x30
[  476.869217][   T73] 
[  476.872239][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  476.872239][   T73]      netdev_get_by_index+0x5e/0x80
[  476.872239][   T73]      fib6_nh_init+0x3d8/0x1580
[  476.872239][   T73]      ip6_route_info_create+0xf18/0x17d0
[  476.872239][   T73]      ip6_route_add+0x1c/0x140
[  476.872239][   T73]      addrconf_prefix_route+0x2a6/0x430
[  476.872239][   T73]      inet6_addr_add+0x4f8/0xa40
[  476.872239][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  476.872239][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  476.872239][   T73]      netlink_rcv_skb+0x130/0x360
[  476.872239][   T73]      netlink_unicast+0x449/0x710
[  476.872239][   T73]      netlink_sendmsg+0x723/0xbe0
[  476.872239][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  476.872239][   T73]      ___sys_sendmsg+0xee/0x170
[  476.872239][   T73]      __sys_sendmsg+0xcd/0x170
[  476.872239][   T73]      do_syscall_64+0xc6/0x1e0
[  476.872239][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  476.872239][   T73] 
[  476.874731][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  476.874731][   T73]      netdev_get_by_index+0x5e/0x80
[  476.874731][   T73]      fib6_nh_init+0x3d8/0x1580
[  476.874731][   T73]      ip6_route_info_create+0xf18/0x17d0
[  476.874731][   T73]      addrconf_f6i_alloc+0x315/0x560
[  476.874731][   T73]      ipv6_add_addr+0x411/0x2000
[  476.874731][   T73]      inet6_addr_add+0x30e/0xa40
[  476.874731][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  476.874731][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  476.874731][   T73]      netlink_rcv_skb+0x130/0x360
[  476.874731][   T73]      netlink_unicast+0x449/0x710
[  476.874731][   T73]      netlink_sendmsg+0x723/0xbe0
[  476.874731][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  476.874731][   T73]      ___sys_sendmsg+0xee/0x170
[  476.874731][   T73]      __sys_sendmsg+0xcd/0x170
[  476.874731][   T73]      do_syscall_64+0xc6/0x1e0
[  476.874731][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  476.874731][   T73] 
[  476.876862][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  476.876862][   T73]      netdev_get_by_index+0x5e/0x80
[  476.876862][   T73]      fib6_nh_init+0x3d8/0x1580
[  476.876862][   T73]      ip6_route_info_create+0xf18/0x17d0
[  476.876862][   T73]      ip6_route_add+0x1c/0x140
[  476.876862][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  476.876862][   T73]      addrconf_add_dev+0xe2/0x170
[  476.876862][   T73]      inet6_addr_add+0x12f/0xa40
[  476.876862][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  476.876862][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  476.876862][   T73]      netlink_rcv_skb+0x130/0x360
[  476.876862][   T73]      netlink_unicast+0x449/0x710
[  476.876862][   T73]      netlink_sendmsg+0x723/0xbe0
[  476.876862][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  476.876862][   T73]      ___sys_sendmsg+0xee/0x170
[  476.876862][   T73]      __sys_sendmsg+0xcd/0x170
[  476.876862][   T73]      do_syscall_64+0xc6/0x1e0
[  476.876862][   T73] 
[  476.878928][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  476.878928][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  476.878928][   T73]      ipv6_find_idev+0x102/0x170
[  476.878928][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  476.878928][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  476.878928][   T73]      netlink_rcv_skb+0x130/0x360
[  476.878928][   T73]      netlink_unicast+0x449/0x710
[  476.878928][   T73]      netlink_sendmsg+0x723/0xbe0
[  476.878928][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  476.878928][   T73]      ___sys_sendmsg+0xee/0x170
[  476.878928][   T73]      __sys_sendmsg+0xcd/0x170
[  476.878928][   T73]      do_syscall_64+0xc6/0x1e0
[  476.878928][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  476.878928][   T73] 
[  476.880548][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  476.880548][   T73]      neigh_parms_alloc+0x1e5/0x510
[  476.880548][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  476.880548][   T73]      ipv6_find_idev+0x102/0x170
[  476.880548][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  476.880548][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  476.880548][   T73]      netlink_rcv_skb+0x130/0x360
[  476.880548][   T73]      netlink_unicast+0x449/0x710
[  476.880548][   T73]      netlink_sendmsg+0x723/0xbe0
[  476.880548][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  476.880548][   T73]      ___sys_sendmsg+0xee/0x170
[  476.880548][   T73]      __sys_sendmsg+0xcd/0x170
[  476.880548][   T73]      do_syscall_64+0xc6/0x1e0
[  476.880548][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  476.880548][   T73] 
[  476.882389][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  476.883075][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  476.883075][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  476.883075][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  476.883075][   T73]      fib6_nh_init+0xa22/0x1580
[  476.883075][   T73]      ip6_route_info_create+0xf18/0x17d0
[  476.883075][   T73]      ip6_route_add+0x1c/0x140
[  476.883075][   T73]      inet6_rtm_newroute+0x104/0x110
[  476.883075][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  476.883075][   T73]      netlink_rcv_skb+0x130/0x360
[  476.883075][   T73]      netlink_unicast+0x449/0x710
[  476.883075][   T73]      netlink_sendmsg+0x723/0xbe0
[  476.883075][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  476.883075][   T73]      ___sys_sendmsg+0xee/0x170
[  476.883075][   T73]      __sys_sendmsg+0xcd/0x170
[  476.883075][   T73]      do_syscall_64+0xc6/0x1e0
[  476.883075][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  476.883075][   T73] 
[  476.885246][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  476.885246][   T73]      dst_init+0x84/0x4a0
[  476.885246][   T73]      dst_alloc+0x97/0x150
[  476.885246][   T73]      ip6_dst_alloc+0x23/0x90
[  476.885246][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  476.885246][   T73]      ip6_pol_route+0x56f/0x840
[  476.885246][   T73]      fib6_rule_lookup+0x456/0x630
[  476.885246][   T73]      ip6_route_input+0x59c/0xa50
[  476.885246][   T73]      ipv6_rcv+0x397/0x810
[  476.885246][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  476.885246][   T73]      process_backlog+0x101/0x620
[  476.885246][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  476.885246][   T73]      net_rx_action+0x495/0xbe0
[  476.885246][   T73]      __do_softirq+0x1b5/0x7f6
[  476.885246][   T73] 
[  476.887261][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  476.887261][   T73]      netdev_get_by_index+0x5e/0x80
[  476.887261][   T73]      fib6_nh_init+0x3d8/0x1580
[  476.887261][   T73]      ip6_route_info_create+0xf18/0x17d0
[  476.887261][   T73]      ip6_route_add+0x1c/0x140
[  476.887261][   T73]      addrconf_prefix_route+0x2a6/0x430
[  476.887261][   T73]      inet6_addr_add+0x4f8/0xa40
[  476.887261][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  476.887261][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  476.887261][   T73]      netlink_rcv_skb+0x130/0x360
[  476.887261][   T73]      netlink_unicast+0x449/0x710
[  476.887261][   T73]      netlink_sendmsg+0x723/0xbe0
[  476.887261][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  476.887261][   T73]      ___sys_sendmsg+0xee/0x170
[  476.887261][   T73]      __sys_sendmsg+0xcd/0x170
[  476.887261][   T73]      do_syscall_64+0xc6/0x1e0
[  476.887261][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  476.887261][   T73] 
[  476.889648][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  476.889648][   T73]      netdev_get_by_index+0x5e/0x80
[  476.889648][   T73]      fib6_nh_init+0x3d8/0x1580
[  476.889648][   T73]      ip6_route_info_create+0xf18/0x17d0
[  476.889648][   T73]      addrconf_f6i_alloc+0x315/0x560
[  476.889648][   T73]      ipv6_add_addr+0x411/0x2000
[  476.889648][   T73]      inet6_addr_add+0x30e/0xa40
[  476.889648][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  476.889648][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  476.889648][   T73]      netlink_rcv_skb+0x130/0x360
[  476.889648][   T73]      netlink_unicast+0x449/0x710
[  476.889648][   T73]      netlink_sendmsg+0x723/0xbe0
[  476.889648][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  476.889648][   T73]      ___sys_sendmsg+0xee/0x170
[  476.889648][   T73]      __sys_sendmsg+0xcd/0x170
[  476.889648][   T73]      do_syscall_64+0xc6/0x1e0
[  476.889648][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  476.889648][   T73] 
[  476.891932][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  476.891932][   T73]      netdev_get_by_index+0x5e/0x80
[  476.891932][   T73]      fib6_nh_init+0x3d8/0x1580
[  476.891932][   T73]      ip6_route_info_create+0xf18/0x17d0
[  476.891932][   T73]      ip6_route_add+0x1c/0x140
[  476.891932][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  476.891932][   T73]      addrconf_add_dev+0xe2/0x170
[  476.891932][   T73]      inet6_addr_add+0x12f/0xa40
[  476.891932][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  476.891932][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  476.891932][   T73]      netlink_rcv_skb+0x130/0x360
[  476.891932][   T73]      netlink_unicast+0x449/0x710
[  476.891932][   T73]      netlink_sendmsg+0x723/0xbe0
[  476.891932][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  476.891932][   T73]      ___sys_sendmsg+0xee/0x170
[  476.891932][   T73]      __sys_sendmsg+0xcd/0x170
[  476.891932][   T73]      do_syscall_64+0xc6/0x1e0
[  476.891932][   T73] 
[  476.894218][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  476.894218][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  476.894218][   T73]      ipv6_find_idev+0x102/0x170
[  476.894218][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  476.894218][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  476.894218][   T73]      netlink_rcv_skb+0x130/0x360
[  476.894218][   T73]      netlink_unicast+0x449/0x710
[  476.894218][   T73]      netlink_sendmsg+0x723/0xbe0
[  476.894218][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  476.894218][   T73]      ___sys_sendmsg+0xee/0x170
[  476.894218][   T73]      __sys_sendmsg+0xcd/0x170
[  476.894218][   T73]      do_syscall_64+0xc6/0x1e0
[  476.894218][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  476.894218][   T73] 
[  476.895972][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  476.895972][   T73]      neigh_parms_alloc+0x1e5/0x510
[  476.895972][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  476.895972][   T73]      ipv6_find_idev+0x102/0x170
[  476.895972][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  476.895972][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  476.895972][   T73]      netlink_rcv_skb+0x130/0x360
[  476.895972][   T73]      netlink_unicast+0x449/0x710
[  476.895972][   T73]      netlink_sendmsg+0x723/0xbe0
[  476.895972][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  476.895972][   T73]      ___sys_sendmsg+0xee/0x170
[  476.895972][   T73]      __sys_sendmsg+0xcd/0x170
[  476.895972][   T73]      do_syscall_64+0xc6/0x1e0
[  476.895972][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  476.895972][   T73] 
[  476.897949][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  476.898325][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  476.898325][   T73]      netdev_get_by_index+0x5e/0x80
[  476.898325][   T73]      fib6_nh_init+0x3d8/0x1580
[  476.898325][   T73]      ip6_route_info_create+0xf18/0x17d0
[  476.898325][   T73]      addrconf_f6i_alloc+0x265/0x560
[  476.898325][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  476.898325][   T73]      addrconf_join_anycast+0x1c0/0x220
[  476.898325][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  476.898325][   T73]      addrconf_dad_completed+0x12b/0xe20
[  476.898325][   T73]      addrconf_dad_begin+0x310/0x670
[  476.898325][   T73]      addrconf_dad_work+0x10b/0xab0
[  476.898325][   T73]      process_one_work+0x84d/0x18a0
[  476.898325][   T73]      worker_thread+0x587/0xd30
[  476.898325][   T73]      kthread+0x28a/0x350
[  476.898325][   T73]      ret_from_fork+0x31/0x70
[  476.898325][   T73]      ret_from_fork_asm+0x1a/0x30
[  476.898325][   T73] 
[  476.900595][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  476.900595][   T73]      netdev_get_by_index+0x5e/0x80
[  476.900595][   T73]      fib6_nh_init+0x3d8/0x1580
[  476.900595][   T73]      ip6_route_info_create+0xf18/0x17d0
[  476.900595][   T73]      ip6_route_add+0x1c/0x140
[  476.900595][   T73]      addrconf_prefix_route+0x2a6/0x430
[  476.900595][   T73]      inet6_addr_add+0x4f8/0xa40
[  476.900595][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  476.900595][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  476.900595][   T73]      netlink_rcv_skb+0x130/0x360
[  476.900595][   T73]      netlink_unicast+0x449/0x710
[  476.900595][   T73]      netlink_sendmsg+0x723/0xbe0
[  476.900595][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  476.900595][   T73]      ___sys_sendmsg+0xee/0x170
[  476.900595][   T73]      __sys_sendmsg+0xcd/0x170
[  476.900595][   T73]      do_syscall_64+0xc6/0x1e0
[  476.900595][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  476.900595][   T73] 
[  476.903023][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  476.903023][   T73]      netdev_get_by_index+0x5e/0x80
[  476.903023][   T73]      fib6_nh_init+0x3d8/0x1580
[  476.903023][   T73]      ip6_route_info_create+0xf18/0x17d0
[  476.903023][   T73]      addrconf_f6i_alloc+0x315/0x560
[  476.903023][   T73]      ipv6_add_addr+0x411/0x2000
[  476.903023][   T73]      inet6_addr_add+0x30e/0xa40
[  476.903023][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  476.903023][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  476.903023][   T73]      netlink_rcv_skb+0x130/0x360
[  476.903023][   T73]      netlink_unicast+0x449/0x710
[  476.903023][   T73]      netlink_sendmsg+0x723/0xbe0
[  476.903023][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  476.903023][   T73]      ___sys_sendmsg+0xee/0x170
[  476.903023][   T73]      __sys_sendmsg+0xcd/0x170
[  476.903023][   T73]      do_syscall_64+0xc6/0x1e0
[  476.903023][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  476.903023][   T73] 
[  476.905401][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  476.905401][   T73]      netdev_get_by_index+0x5e/0x80
[  476.905401][   T73]      fib6_nh_init+0x3d8/0x1580
[  476.905401][   T73]      ip6_route_info_create+0xf18/0x17d0
[  476.905401][   T73]      ip6_route_add+0x1c/0x140
[  476.905401][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  476.905401][   T73]      addrconf_add_dev+0xe2/0x170
[  476.905401][   T73]      inet6_addr_add+0x12f/0xa40
[  476.905401][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  476.905401][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  476.905401][   T73]      netlink_rcv_skb+0x130/0x360
[  476.905401][   T73]      netlink_unicast+0x449/0x710
[  476.905401][   T73]      netlink_sendmsg+0x723/0xbe0
[  476.905401][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  476.905401][   T73]      ___sys_sendmsg+0xee/0x170
[  476.905401][   T73]      __sys_sendmsg+0xcd/0x170
[  476.905401][   T73]      do_syscall_64+0xc6/0x1e0
[  476.905401][   T73] 
[  476.907735][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  476.907735][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  476.907735][   T73]      ipv6_find_idev+0x102/0x170
[  476.907735][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  476.907735][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  476.907735][   T73]      netlink_rcv_skb+0x130/0x360
[  476.907735][   T73]      netlink_unicast+0x449/0x710
[  476.907735][   T73]      netlink_sendmsg+0x723/0xbe0
[  476.907735][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  476.907735][   T73]      ___sys_sendmsg+0xee/0x170
[  476.907735][   T73]      __sys_sendmsg+0xcd/0x170
[  476.907735][   T73]      do_syscall_64+0xc6/0x1e0
[  476.907735][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  476.907735][   T73] 
[  476.909636][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  476.909636][   T73]      neigh_parms_alloc+0x1e5/0x510
[  476.909636][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  476.909636][   T73]      ipv6_find_idev+0x102/0x170
[  476.909636][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  476.909636][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  476.909636][   T73]      netlink_rcv_skb+0x130/0x360
[  476.909636][   T73]      netlink_unicast+0x449/0x710
[  476.909636][   T73]      netlink_sendmsg+0x723/0xbe0
[  476.909636][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  476.909636][   T73]      ___sys_sendmsg+0xee/0x170
[  476.909636][   T73]      __sys_sendmsg+0xcd/0x170
[  476.909636][   T73]      do_syscall_64+0xc6/0x1e0
[  476.909636][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  476.909636][   T73] 
[  487.031770][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  487.032214][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  487.032214][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  487.032214][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  487.032214][   T73]      fib6_nh_init+0xa22/0x1580
[  487.032214][   T73]      ip6_route_info_create+0xf18/0x17d0
[  487.032214][   T73]      ip6_route_add+0x1c/0x140
[  487.032214][   T73]      inet6_rtm_newroute+0x104/0x110
[  487.032214][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  487.032214][   T73]      netlink_rcv_skb+0x130/0x360
[  487.032214][   T73]      netlink_unicast+0x449/0x710
[  487.032214][   T73]      netlink_sendmsg+0x723/0xbe0
[  487.032214][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  487.032214][   T73]      ___sys_sendmsg+0xee/0x170
[  487.032214][   T73]      __sys_sendmsg+0xcd/0x170
[  487.032214][   T73]      do_syscall_64+0xc6/0x1e0
[  487.032214][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  487.032214][   T73] 
[  487.034187][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  487.034187][   T73]      dst_init+0x84/0x4a0
[  487.034187][   T73]      dst_alloc+0x97/0x150
[  487.034187][   T73]      ip6_dst_alloc+0x23/0x90
[  487.034187][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  487.034187][   T73]      ip6_pol_route+0x56f/0x840
[  487.034187][   T73]      fib6_rule_lookup+0x456/0x630
[  487.034187][   T73]      ip6_route_input+0x59c/0xa50
[  487.034187][   T73]      ipv6_rcv+0x397/0x810
[  487.034187][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  487.034187][   T73]      process_backlog+0x101/0x620
[  487.034187][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  487.034187][   T73]      net_rx_action+0x495/0xbe0
[  487.034187][   T73]      __do_softirq+0x1b5/0x7f6
[  487.034187][   T73] 
[  487.035905][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  487.035905][   T73]      netdev_get_by_index+0x5e/0x80
[  487.035905][   T73]      fib6_nh_init+0x3d8/0x1580
[  487.035905][   T73]      ip6_route_info_create+0xf18/0x17d0
[  487.035905][   T73]      ip6_route_add+0x1c/0x140
[  487.035905][   T73]      addrconf_prefix_route+0x2a6/0x430
[  487.035905][   T73]      inet6_addr_add+0x4f8/0xa40
[  487.035905][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  487.035905][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  487.035905][   T73]      netlink_rcv_skb+0x130/0x360
[  487.035905][   T73]      netlink_unicast+0x449/0x710
[  487.035905][   T73]      netlink_sendmsg+0x723/0xbe0
[  487.035905][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  487.035905][   T73]      ___sys_sendmsg+0xee/0x170
[  487.035905][   T73]      __sys_sendmsg+0xcd/0x170
[  487.035905][   T73]      do_syscall_64+0xc6/0x1e0
[  487.035905][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  487.035905][   T73] 
[  487.038043][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  487.038043][   T73]      netdev_get_by_index+0x5e/0x80
[  487.038043][   T73]      fib6_nh_init+0x3d8/0x1580
[  487.038043][   T73]      ip6_route_info_create+0xf18/0x17d0
[  487.038043][   T73]      addrconf_f6i_alloc+0x315/0x560
[  487.038043][   T73]      ipv6_add_addr+0x411/0x2000
[  487.038043][   T73]      inet6_addr_add+0x30e/0xa40
[  487.038043][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  487.038043][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  487.038043][   T73]      netlink_rcv_skb+0x130/0x360
[  487.038043][   T73]      netlink_unicast+0x449/0x710
[  487.038043][   T73]      netlink_sendmsg+0x723/0xbe0
[  487.038043][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  487.038043][   T73]      ___sys_sendmsg+0xee/0x170
[  487.038043][   T73]      __sys_sendmsg+0xcd/0x170
[  487.038043][   T73]      do_syscall_64+0xc6/0x1e0
[  487.038043][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  487.038043][   T73] 
[  487.040138][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  487.040138][   T73]      netdev_get_by_index+0x5e/0x80
[  487.040138][   T73]      fib6_nh_init+0x3d8/0x1580
[  487.040138][   T73]      ip6_route_info_create+0xf18/0x17d0
[  487.040138][   T73]      ip6_route_add+0x1c/0x140
[  487.040138][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  487.040138][   T73]      addrconf_add_dev+0xe2/0x170
[  487.040138][   T73]      inet6_addr_add+0x12f/0xa40
[  487.040138][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  487.040138][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  487.040138][   T73]      netlink_rcv_skb+0x130/0x360
[  487.040138][   T73]      netlink_unicast+0x449/0x710
[  487.040138][   T73]      netlink_sendmsg+0x723/0xbe0
[  487.040138][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  487.040138][   T73]      ___sys_sendmsg+0xee/0x170
[  487.040138][   T73]      __sys_sendmsg+0xcd/0x170
[  487.040138][   T73]      do_syscall_64+0xc6/0x1e0
[  487.040138][   T73] 
[  487.042242][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  487.042242][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  487.042242][   T73]      ipv6_find_idev+0x102/0x170
[  487.042242][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  487.042242][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  487.042242][   T73]      netlink_rcv_skb+0x130/0x360
[  487.042242][   T73]      netlink_unicast+0x449/0x710
[  487.042242][   T73]      netlink_sendmsg+0x723/0xbe0
[  487.042242][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  487.042242][   T73]      ___sys_sendmsg+0xee/0x170
[  487.042242][   T73]      __sys_sendmsg+0xcd/0x170
[  487.042242][   T73]      do_syscall_64+0xc6/0x1e0
[  487.042242][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  487.042242][   T73] 
[  487.043900][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  487.043900][   T73]      neigh_parms_alloc+0x1e5/0x510
[  487.043900][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  487.043900][   T73]      ipv6_find_idev+0x102/0x170
[  487.043900][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  487.043900][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  487.043900][   T73]      netlink_rcv_skb+0x130/0x360
[  487.043900][   T73]      netlink_unicast+0x449/0x710
[  487.043900][   T73]      netlink_sendmsg+0x723/0xbe0
[  487.043900][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  487.043900][   T73]      ___sys_sendmsg+0xee/0x170
[  487.043900][   T73]      __sys_sendmsg+0xcd/0x170
[  487.043900][   T73]      do_syscall_64+0xc6/0x1e0
[  487.043900][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  487.043900][   T73] 
[  487.045669][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  487.045971][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  487.045971][   T73]      netdev_get_by_index+0x5e/0x80
[  487.045971][   T73]      fib6_nh_init+0x3d8/0x1580
[  487.045971][   T73]      ip6_route_info_create+0xf18/0x17d0
[  487.045971][   T73]      addrconf_f6i_alloc+0x265/0x560
[  487.045971][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  487.045971][   T73]      addrconf_join_anycast+0x1c0/0x220
[  487.045971][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  487.045971][   T73]      addrconf_dad_completed+0x12b/0xe20
[  487.045971][   T73]      addrconf_dad_begin+0x310/0x670
[  487.045971][   T73]      addrconf_dad_work+0x10b/0xab0
[  487.045971][   T73]      process_one_work+0x84d/0x18a0
[  487.045971][   T73]      worker_thread+0x587/0xd30
[  487.045971][   T73]      kthread+0x28a/0x350
[  487.045971][   T73]      ret_from_fork+0x31/0x70
[  487.045971][   T73]      ret_from_fork_asm+0x1a/0x30
[  487.045971][   T73] 
[  487.047982][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  487.047982][   T73]      netdev_get_by_index+0x5e/0x80
[  487.047982][   T73]      fib6_nh_init+0x3d8/0x1580
[  487.047982][   T73]      ip6_route_info_create+0xf18/0x17d0
[  487.047982][   T73]      ip6_route_add+0x1c/0x140
[  487.047982][   T73]      addrconf_prefix_route+0x2a6/0x430
[  487.047982][   T73]      inet6_addr_add+0x4f8/0xa40
[  487.047982][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  487.047982][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  487.047982][   T73]      netlink_rcv_skb+0x130/0x360
[  487.047982][   T73]      netlink_unicast+0x449/0x710
[  487.047982][   T73]      netlink_sendmsg+0x723/0xbe0
[  487.047982][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  487.047982][   T73]      ___sys_sendmsg+0xee/0x170
[  487.047982][   T73]      __sys_sendmsg+0xcd/0x170
[  487.047982][   T73]      do_syscall_64+0xc6/0x1e0
[  487.047982][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  487.047982][   T73] 
[  487.050090][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  487.050090][   T73]      netdev_get_by_index+0x5e/0x80
[  487.050090][   T73]      fib6_nh_init+0x3d8/0x1580
[  487.050090][   T73]      ip6_route_info_create+0xf18/0x17d0
[  487.050090][   T73]      addrconf_f6i_alloc+0x315/0x560
[  487.050090][   T73]      ipv6_add_addr+0x411/0x2000
[  487.050090][   T73]      inet6_addr_add+0x30e/0xa40
[  487.050090][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  487.050090][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  487.050090][   T73]      netlink_rcv_skb+0x130/0x360
[  487.050090][   T73]      netlink_unicast+0x449/0x710
[  487.050090][   T73]      netlink_sendmsg+0x723/0xbe0
[  487.050090][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  487.050090][   T73]      ___sys_sendmsg+0xee/0x170
[  487.050090][   T73]      __sys_sendmsg+0xcd/0x170
[  487.050090][   T73]      do_syscall_64+0xc6/0x1e0
[  487.050090][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  487.050090][   T73] 
[  487.052167][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  487.052167][   T73]      netdev_get_by_index+0x5e/0x80
[  487.052167][   T73]      fib6_nh_init+0x3d8/0x1580
[  487.052167][   T73]      ip6_route_info_create+0xf18/0x17d0
[  487.052167][   T73]      ip6_route_add+0x1c/0x140
[  487.052167][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  487.052167][   T73]      addrconf_add_dev+0xe2/0x170
[  487.052167][   T73]      inet6_addr_add+0x12f/0xa40
[  487.052167][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  487.052167][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  487.052167][   T73]      netlink_rcv_skb+0x130/0x360
[  487.052167][   T73]      netlink_unicast+0x449/0x710
[  487.052167][   T73]      netlink_sendmsg+0x723/0xbe0
[  487.052167][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  487.052167][   T73]      ___sys_sendmsg+0xee/0x170
[  487.052167][   T73]      __sys_sendmsg+0xcd/0x170
[  487.052167][   T73]      do_syscall_64+0xc6/0x1e0
[  487.052167][   T73] 
[  487.054249][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  487.054249][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  487.054249][   T73]      ipv6_find_idev+0x102/0x170
[  487.054249][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  487.054249][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  487.054249][   T73]      netlink_rcv_skb+0x130/0x360
[  487.054249][   T73]      netlink_unicast+0x449/0x710
[  487.054249][   T73]      netlink_sendmsg+0x723/0xbe0
[  487.054249][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  487.054249][   T73]      ___sys_sendmsg+0xee/0x170
[  487.054249][   T73]      __sys_sendmsg+0xcd/0x170
[  487.054249][   T73]      do_syscall_64+0xc6/0x1e0
[  487.054249][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  487.054249][   T73] 
[  487.055788][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  487.055788][   T73]      neigh_parms_alloc+0x1e5/0x510
[  487.055788][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  487.055788][   T73]      ipv6_find_idev+0x102/0x170
[  487.055788][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  487.055788][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  487.055788][   T73]      netlink_rcv_skb+0x130/0x360
[  487.055788][   T73]      netlink_unicast+0x449/0x710
[  487.055788][   T73]      netlink_sendmsg+0x723/0xbe0
[  487.055788][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  487.055788][   T73]      ___sys_sendmsg+0xee/0x170
[  487.055788][   T73]      __sys_sendmsg+0xcd/0x170
[  487.055788][   T73]      do_syscall_64+0xc6/0x1e0
[  487.055788][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  487.055788][   T73] 
[  487.057511][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  487.057803][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  487.057803][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  487.057803][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  487.057803][   T73]      fib6_nh_init+0xa22/0x1580
[  487.057803][   T73]      ip6_route_info_create+0xf18/0x17d0
[  487.057803][   T73]      ip6_route_add+0x1c/0x140
[  487.057803][   T73]      inet6_rtm_newroute+0x104/0x110
[  487.057803][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  487.057803][   T73]      netlink_rcv_skb+0x130/0x360
[  487.057803][   T73]      netlink_unicast+0x449/0x710
[  487.057803][   T73]      netlink_sendmsg+0x723/0xbe0
[  487.057803][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  487.057803][   T73]      ___sys_sendmsg+0xee/0x170
[  487.057803][   T73]      __sys_sendmsg+0xcd/0x170
[  487.057803][   T73]      do_syscall_64+0xc6/0x1e0
[  487.057803][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  487.057803][   T73] 
[  487.059851][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  487.059851][   T73]      dst_init+0x84/0x4a0
[  487.059851][   T73]      dst_alloc+0x97/0x150
[  487.059851][   T73]      ip6_dst_alloc+0x23/0x90
[  487.059851][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  487.059851][   T73]      ip6_pol_route+0x56f/0x840
[  487.059851][   T73]      fib6_rule_lookup+0x456/0x630
[  487.059851][   T73]      ip6_route_input+0x59c/0xa50
[  487.059851][   T73]      ipv6_rcv+0x397/0x810
[  487.059851][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  487.059851][   T73]      process_backlog+0x101/0x620
[  487.059851][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  487.059851][   T73]      net_rx_action+0x495/0xbe0
[  487.059851][   T73]      __do_softirq+0x1b5/0x7f6
[  487.059851][   T73] 
[  487.061727][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  487.061727][   T73]      netdev_get_by_index+0x5e/0x80
[  487.061727][   T73]      fib6_nh_init+0x3d8/0x1580
[  487.061727][   T73]      ip6_route_info_create+0xf18/0x17d0
[  487.061727][   T73]      ip6_route_add+0x1c/0x140
[  487.061727][   T73]      addrconf_prefix_route+0x2a6/0x430
[  487.061727][   T73]      inet6_addr_add+0x4f8/0xa40
[  487.061727][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  487.061727][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  487.061727][   T73]      netlink_rcv_skb+0x130/0x360
[  487.061727][   T73]      netlink_unicast+0x449/0x710
[  487.061727][   T73]      netlink_sendmsg+0x723/0xbe0
[  487.061727][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  487.061727][   T73]      ___sys_sendmsg+0xee/0x170
[  487.061727][   T73]      __sys_sendmsg+0xcd/0x170
[  487.061727][   T73]      do_syscall_64+0xc6/0x1e0
[  487.061727][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  487.061727][   T73] 
[  487.063912][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  487.063912][   T73]      netdev_get_by_index+0x5e/0x80
[  487.063912][   T73]      fib6_nh_init+0x3d8/0x1580
[  487.063912][   T73]      ip6_route_info_create+0xf18/0x17d0
[  487.063912][   T73]      addrconf_f6i_alloc+0x315/0x560
[  487.063912][   T73]      ipv6_add_addr+0x411/0x2000
[  487.063912][   T73]      inet6_addr_add+0x30e/0xa40
[  487.063912][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  487.063912][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  487.063912][   T73]      netlink_rcv_skb+0x130/0x360
[  487.063912][   T73]      netlink_unicast+0x449/0x710
[  487.063912][   T73]      netlink_sendmsg+0x723/0xbe0
[  487.063912][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  487.063912][   T73]      ___sys_sendmsg+0xee/0x170
[  487.063912][   T73]      __sys_sendmsg+0xcd/0x170
[  487.063912][   T73]      do_syscall_64+0xc6/0x1e0
[  487.063912][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  487.063912][   T73] 
[  487.066144][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  487.066144][   T73]      netdev_get_by_index+0x5e/0x80
[  487.066144][   T73]      fib6_nh_init+0x3d8/0x1580
[  487.066144][   T73]      ip6_route_info_create+0xf18/0x17d0
[  487.066144][   T73]      ip6_route_add+0x1c/0x140
[  487.066144][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  487.066144][   T73]      addrconf_add_dev+0xe2/0x170
[  487.066144][   T73]      inet6_addr_add+0x12f/0xa40
[  487.066144][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  487.066144][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  487.066144][   T73]      netlink_rcv_skb+0x130/0x360
[  487.066144][   T73]      netlink_unicast+0x449/0x710
[  487.066144][   T73]      netlink_sendmsg+0x723/0xbe0
[  487.066144][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  487.066144][   T73]      ___sys_sendmsg+0xee/0x170
[  487.066144][   T73]      __sys_sendmsg+0xcd/0x170
[  487.066144][   T73]      do_syscall_64+0xc6/0x1e0
[  487.066144][   T73] 
[  487.068365][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  487.068365][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  487.068365][   T73]      ipv6_find_idev+0x102/0x170
[  487.068365][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  487.068365][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  487.068365][   T73]      netlink_rcv_skb+0x130/0x360
[  487.068365][   T73]      netlink_unicast+0x449/0x710
[  487.068365][   T73]      netlink_sendmsg+0x723/0xbe0
[  487.068365][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  487.068365][   T73]      ___sys_sendmsg+0xee/0x170
[  487.068365][   T73]      __sys_sendmsg+0xcd/0x170
[  487.068365][   T73]      do_syscall_64+0xc6/0x1e0
[  487.068365][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  487.068365][   T73] 
[  487.070251][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  487.070251][   T73]      neigh_parms_alloc+0x1e5/0x510
[  487.070251][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  487.070251][   T73]      ipv6_find_idev+0x102/0x170
[  487.070251][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  487.070251][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  487.070251][   T73]      netlink_rcv_skb+0x130/0x360
[  487.070251][   T73]      netlink_unicast+0x449/0x710
[  487.070251][   T73]      netlink_sendmsg+0x723/0xbe0
[  487.070251][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  487.070251][   T73]      ___sys_sendmsg+0xee/0x170
[  487.070251][   T73]      __sys_sendmsg+0xcd/0x170
[  487.070251][   T73]      do_syscall_64+0xc6/0x1e0
[  487.070251][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  487.070251][   T73] 
[  487.072135][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  487.072479][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  487.072479][   T73]      netdev_get_by_index+0x5e/0x80
[  487.072479][   T73]      fib6_nh_init+0x3d8/0x1580
[  487.072479][   T73]      ip6_route_info_create+0xf18/0x17d0
[  487.072479][   T73]      addrconf_f6i_alloc+0x265/0x560
[  487.072479][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  487.072479][   T73]      addrconf_join_anycast+0x1c0/0x220
[  487.072479][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  487.072479][   T73]      addrconf_dad_completed+0x12b/0xe20
[  487.072479][   T73]      addrconf_dad_begin+0x310/0x670
[  487.072479][   T73]      addrconf_dad_work+0x10b/0xab0
[  487.072479][   T73]      process_one_work+0x84d/0x18a0
[  487.072479][   T73]      worker_thread+0x587/0xd30
[  487.072479][   T73]      kthread+0x28a/0x350
[  487.072479][   T73]      ret_from_fork+0x31/0x70
[  487.072479][   T73]      ret_from_fork_asm+0x1a/0x30
[  487.072479][   T73] 
[  487.074616][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  487.074616][   T73]      netdev_get_by_index+0x5e/0x80
[  487.074616][   T73]      fib6_nh_init+0x3d8/0x1580
[  487.074616][   T73]      ip6_route_info_create+0xf18/0x17d0
[  487.074616][   T73]      ip6_route_add+0x1c/0x140
[  487.074616][   T73]      addrconf_prefix_route+0x2a6/0x430
[  487.074616][   T73]      inet6_addr_add+0x4f8/0xa40
[  487.074616][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  487.074616][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  487.074616][   T73]      netlink_rcv_skb+0x130/0x360
[  487.074616][   T73]      netlink_unicast+0x449/0x710
[  487.074616][   T73]      netlink_sendmsg+0x723/0xbe0
[  487.074616][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  487.074616][   T73]      ___sys_sendmsg+0xee/0x170
[  487.074616][   T73]      __sys_sendmsg+0xcd/0x170
[  487.074616][   T73]      do_syscall_64+0xc6/0x1e0
[  487.074616][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  487.074616][   T73] 
[  487.076940][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  487.076940][   T73]      netdev_get_by_index+0x5e/0x80
[  487.076940][   T73]      fib6_nh_init+0x3d8/0x1580
[  487.076940][   T73]      ip6_route_info_create+0xf18/0x17d0
[  487.076940][   T73]      addrconf_f6i_alloc+0x315/0x560
[  487.076940][   T73]      ipv6_add_addr+0x411/0x2000
[  487.076940][   T73]      inet6_addr_add+0x30e/0xa40
[  487.076940][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  487.076940][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  487.076940][   T73]      netlink_rcv_skb+0x130/0x360
[  487.076940][   T73]      netlink_unicast+0x449/0x710
[  487.076940][   T73]      netlink_sendmsg+0x723/0xbe0
[  487.076940][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  487.076940][   T73]      ___sys_sendmsg+0xee/0x170
[  487.076940][   T73]      __sys_sendmsg+0xcd/0x170
[  487.076940][   T73]      do_syscall_64+0xc6/0x1e0
[  487.076940][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  487.076940][   T73] 
[  487.079317][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  487.079317][   T73]      netdev_get_by_index+0x5e/0x80
[  487.079317][   T73]      fib6_nh_init+0x3d8/0x1580
[  487.079317][   T73]      ip6_route_info_create+0xf18/0x17d0
[  487.079317][   T73]      ip6_route_add+0x1c/0x140
[  487.079317][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  487.079317][   T73]      addrconf_add_dev+0xe2/0x170
[  487.079317][   T73]      inet6_addr_add+0x12f/0xa40
[  487.079317][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  487.079317][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  487.079317][   T73]      netlink_rcv_skb+0x130/0x360
[  487.079317][   T73]      netlink_unicast+0x449/0x710
[  487.079317][   T73]      netlink_sendmsg+0x723/0xbe0
[  487.079317][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  487.079317][   T73]      ___sys_sendmsg+0xee/0x170
[  487.079317][   T73]      __sys_sendmsg+0xcd/0x170
[  487.079317][   T73]      do_syscall_64+0xc6/0x1e0
[  487.079317][   T73] 
[  487.081549][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  487.081549][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  487.081549][   T73]      ipv6_find_idev+0x102/0x170
[  487.081549][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  487.081549][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  487.081549][   T73]      netlink_rcv_skb+0x130/0x360
[  487.081549][   T73]      netlink_unicast+0x449/0x710
[  487.081549][   T73]      netlink_sendmsg+0x723/0xbe0
[  487.081549][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  487.081549][   T73]      ___sys_sendmsg+0xee/0x170
[  487.081549][   T73]      __sys_sendmsg+0xcd/0x170
[  487.081549][   T73]      do_syscall_64+0xc6/0x1e0
[  487.081549][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  487.081549][   T73] 
[  487.083319][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  487.083319][   T73]      neigh_parms_alloc+0x1e5/0x510
[  487.083319][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  487.083319][   T73]      ipv6_find_idev+0x102/0x170
[  487.083319][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  487.083319][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  487.083319][   T73]      netlink_rcv_skb+0x130/0x360
[  487.083319][   T73]      netlink_unicast+0x449/0x710
[  487.083319][   T73]      netlink_sendmsg+0x723/0xbe0
[  487.083319][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  487.083319][   T73]      ___sys_sendmsg+0xee/0x170
[  487.083319][   T73]      __sys_sendmsg+0xcd/0x170
[  487.083319][   T73]      do_syscall_64+0xc6/0x1e0
[  487.083319][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  487.083319][   T73] 
[  492.839798][   T42] INFO: task modprobe:885 blocked for more than 245 seconds.
[  492.840108][   T42]       Not tainted 6.8.0-virtme #1
[  492.840232][   T42] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  492.840449][   T42] task:modprobe        state:D stack:25856 pid:885   tgid:885   ppid:39     flags:0x00004002
[  492.840752][   T42] Call Trace:
[  492.840849][   T42]  <TASK>
[  492.840920][   T42]  __schedule+0x705/0x1ac0
[  492.841078][   T42]  ? __pfx___schedule+0x10/0x10
[  492.841206][   T42]  ? schedule+0x1a5/0x210
[  492.841303][   T42]  ? __pfx_lock_acquire.part.0+0x10/0x10
[  492.841433][   T42]  ? mark_lock+0x38/0x3e0
[  492.841529][   T42]  ? do_raw_spin_lock+0x131/0x270
[  492.841668][   T42]  ? schedule+0x1a5/0x210
[  492.841770][   T42]  schedule+0xdf/0x210
[  492.841865][   T42]  schedule_preempt_disabled+0x15/0x30
[  492.841990][   T42]  rwsem_down_write_slowpath+0x3af/0xab0
[  492.842144][   T42]  ? __pfx_rwsem_down_write_slowpath+0x10/0x10
[  492.842302][   T42]  ? __pfx_lock_acquire.part.0+0x10/0x10
[  492.842448][   T42]  ? lock_acquire+0x1c1/0x220
[  492.842574][   T42]  ? register_pernet_subsys+0x1a/0x50
[  492.842726][   T42]  down_write+0x1c9/0x200
[  492.842831][   T42]  ? __pfx_down_write+0x10/0x10
[  492.842988][   T42]  ? __lock_release+0x103/0x460
[  492.843111][   T42]  ? __create_object+0x5e/0xb0
[  492.843237][   T42]  ? __pfx___lock_release+0x10/0x10
[  492.843398][   T42]  register_pernet_subsys+0x1a/0x50
[  492.843528][   T42]  tcf_register_action+0xa3/0x600
[  492.843676][   T42]  ? __pfx_pedit_init_module+0x10/0x10 [act_pedit]
[  492.843846][   T42]  do_one_initcall+0xc8/0x3f0
[  492.843984][   T42]  ? __pfx_do_one_initcall+0x10/0x10
[  492.844122][   T42]  ? __create_object+0x5e/0xb0
[  492.844251][   T42]  ? kasan_unpoison+0x27/0x60
[  492.844408][   T42]  do_init_module+0x233/0x740
[  492.844547][   T42]  load_module+0x16b5/0x2350
[  492.844711][   T42]  ? __pfx_load_module+0x10/0x10
[  492.844834][   T42]  ? kernel_read_file+0x3d2/0x520
[  492.844963][   T42]  ? kernel_read_file+0x300/0x520
[  492.845089][   T42]  ? __pfx_kernel_read_file+0x10/0x10
[  492.845224][   T42]  ? init_module_from_file+0xd2/0x130
[  492.845346][   T42]  init_module_from_file+0xd2/0x130
[  492.845481][   T42]  ? __pfx_init_module_from_file+0x10/0x10
[  492.845670][   T42]  ? __lock_release+0x103/0x460
[  492.845828][   T42]  ? idempotent_init_module+0x32a/0x620
[  492.845997][   T42]  ? idempotent_init_module+0x32a/0x620
[  492.846246][   T42]  ? do_raw_spin_unlock+0x58/0x220
[  492.846377][   T42]  idempotent_init_module+0x342/0x620
[  492.846513][   T42]  ? __pfx_idempotent_init_module+0x10/0x10
[  492.846698][   T42]  __x64_sys_finit_module+0xbe/0x130
[  492.846823][   T42]  do_syscall_64+0xc6/0x1e0
[  492.846952][   T42]  entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  492.847110][   T42] RIP: 0033:0x7f505b1e4e5d
[  492.847246][   T42] RSP: 002b:00007ffe4f186f28 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[  492.847436][   T42] RAX: ffffffffffffffda RBX: 000055ce7b6ccc80 RCX: 00007f505b1e4e5d
[  492.847631][   T42] RDX: 0000000000000000 RSI: 000055ce5e14da2a RDI: 0000000000000000
[  492.847840][   T42] RBP: 0000000000040000 R08: 0000000000000000 R09: 00007ffe4f187060
[  492.848044][   T42] R10: 0000000000000000 R11: 0000000000000246 R12: 000055ce5e14da2a
[  492.848264][   T42] R13: 000055ce7b6ccac0 R14: 000055ce7b6cd0b0 R15: 000055ce7b6cccf2
[  492.848466][   T42]  </TASK>
[  492.848577][   T42] 
[  492.848577][   T42] Showing all locks held in the system:
[  492.848768][   T42] 2 locks held by kworker/u20:0/39:
[  492.848906][   T42]  #0: ffff888001161d48 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0
[  492.849188][   T42]  #1: ffffc900002c7da0 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0
[  492.849468][   T42] 1 lock held by khungtaskd/42:
[  492.849585][   T42]  #0: ffffffffaf7591e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x350
[  492.849875][   T42] 3 locks held by kworker/u16:1/73:
[  492.849998][   T42]  #0: ffff88800190a948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0
[  492.850265][   T42]  #1: ffffc900004efda0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0
[  492.850509][   T42]  #2: ffffffffaff6a1d0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xbc/0xb60
[  492.850759][   T42] 1 lock held by modprobe/885:
[  492.850881][   T42]  #0: ffffffffaff6a1d0 (pernet_ops_rwsem){++++}-{3:3}, at: register_pernet_subsys+0x1a/0x50
[  492.851137][   T42] 
[  492.851199][   T42] =============================================
[  492.851199][   T42] 
[  497.151783][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  497.152231][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  497.152231][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  497.152231][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  497.152231][   T73]      fib6_nh_init+0xa22/0x1580
[  497.152231][   T73]      ip6_route_info_create+0xf18/0x17d0
[  497.152231][   T73]      ip6_route_add+0x1c/0x140
[  497.152231][   T73]      inet6_rtm_newroute+0x104/0x110
[  497.152231][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  497.152231][   T73]      netlink_rcv_skb+0x130/0x360
[  497.152231][   T73]      netlink_unicast+0x449/0x710
[  497.152231][   T73]      netlink_sendmsg+0x723/0xbe0
[  497.152231][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  497.152231][   T73]      ___sys_sendmsg+0xee/0x170
[  497.152231][   T73]      __sys_sendmsg+0xcd/0x170
[  497.152231][   T73]      do_syscall_64+0xc6/0x1e0
[  497.152231][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  497.152231][   T73] 
[  497.154150][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  497.154150][   T73]      dst_init+0x84/0x4a0
[  497.154150][   T73]      dst_alloc+0x97/0x150
[  497.154150][   T73]      ip6_dst_alloc+0x23/0x90
[  497.154150][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  497.154150][   T73]      ip6_pol_route+0x56f/0x840
[  497.154150][   T73]      fib6_rule_lookup+0x456/0x630
[  497.154150][   T73]      ip6_route_input+0x59c/0xa50
[  497.154150][   T73]      ipv6_rcv+0x397/0x810
[  497.154150][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  497.154150][   T73]      process_backlog+0x101/0x620
[  497.154150][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  497.154150][   T73]      net_rx_action+0x495/0xbe0
[  497.154150][   T73]      __do_softirq+0x1b5/0x7f6
[  497.154150][   T73] 
[  497.155798][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  497.155798][   T73]      netdev_get_by_index+0x5e/0x80
[  497.155798][   T73]      fib6_nh_init+0x3d8/0x1580
[  497.155798][   T73]      ip6_route_info_create+0xf18/0x17d0
[  497.155798][   T73]      ip6_route_add+0x1c/0x140
[  497.155798][   T73]      addrconf_prefix_route+0x2a6/0x430
[  497.155798][   T73]      inet6_addr_add+0x4f8/0xa40
[  497.155798][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  497.155798][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  497.155798][   T73]      netlink_rcv_skb+0x130/0x360
[  497.155798][   T73]      netlink_unicast+0x449/0x710
[  497.155798][   T73]      netlink_sendmsg+0x723/0xbe0
[  497.155798][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  497.155798][   T73]      ___sys_sendmsg+0xee/0x170
[  497.155798][   T73]      __sys_sendmsg+0xcd/0x170
[  497.155798][   T73]      do_syscall_64+0xc6/0x1e0
[  497.155798][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  497.155798][   T73] 
[  497.157801][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  497.157801][   T73]      netdev_get_by_index+0x5e/0x80
[  497.157801][   T73]      fib6_nh_init+0x3d8/0x1580
[  497.157801][   T73]      ip6_route_info_create+0xf18/0x17d0
[  497.157801][   T73]      addrconf_f6i_alloc+0x315/0x560
[  497.157801][   T73]      ipv6_add_addr+0x411/0x2000
[  497.157801][   T73]      inet6_addr_add+0x30e/0xa40
[  497.157801][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  497.157801][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  497.157801][   T73]      netlink_rcv_skb+0x130/0x360
[  497.157801][   T73]      netlink_unicast+0x449/0x710
[  497.157801][   T73]      netlink_sendmsg+0x723/0xbe0
[  497.157801][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  497.157801][   T73]      ___sys_sendmsg+0xee/0x170
[  497.157801][   T73]      __sys_sendmsg+0xcd/0x170
[  497.157801][   T73]      do_syscall_64+0xc6/0x1e0
[  497.157801][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  497.157801][   T73] 
[  497.159811][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  497.159811][   T73]      netdev_get_by_index+0x5e/0x80
[  497.159811][   T73]      fib6_nh_init+0x3d8/0x1580
[  497.159811][   T73]      ip6_route_info_create+0xf18/0x17d0
[  497.159811][   T73]      ip6_route_add+0x1c/0x140
[  497.159811][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  497.159811][   T73]      addrconf_add_dev+0xe2/0x170
[  497.159811][   T73]      inet6_addr_add+0x12f/0xa40
[  497.159811][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  497.159811][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  497.159811][   T73]      netlink_rcv_skb+0x130/0x360
[  497.159811][   T73]      netlink_unicast+0x449/0x710
[  497.159811][   T73]      netlink_sendmsg+0x723/0xbe0
[  497.159811][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  497.159811][   T73]      ___sys_sendmsg+0xee/0x170
[  497.159811][   T73]      __sys_sendmsg+0xcd/0x170
[  497.159811][   T73]      do_syscall_64+0xc6/0x1e0
[  497.159811][   T73] 
[  497.161796][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  497.161796][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  497.161796][   T73]      ipv6_find_idev+0x102/0x170
[  497.161796][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  497.161796][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  497.161796][   T73]      netlink_rcv_skb+0x130/0x360
[  497.161796][   T73]      netlink_unicast+0x449/0x710
[  497.161796][   T73]      netlink_sendmsg+0x723/0xbe0
[  497.161796][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  497.161796][   T73]      ___sys_sendmsg+0xee/0x170
[  497.161796][   T73]      __sys_sendmsg+0xcd/0x170
[  497.161796][   T73]      do_syscall_64+0xc6/0x1e0
[  497.161796][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  497.161796][   T73] 
[  497.163343][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  497.163343][   T73]      neigh_parms_alloc+0x1e5/0x510
[  497.163343][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  497.163343][   T73]      ipv6_find_idev+0x102/0x170
[  497.163343][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  497.163343][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  497.163343][   T73]      netlink_rcv_skb+0x130/0x360
[  497.163343][   T73]      netlink_unicast+0x449/0x710
[  497.163343][   T73]      netlink_sendmsg+0x723/0xbe0
[  497.163343][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  497.163343][   T73]      ___sys_sendmsg+0xee/0x170
[  497.163343][   T73]      __sys_sendmsg+0xcd/0x170
[  497.163343][   T73]      do_syscall_64+0xc6/0x1e0
[  497.163343][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  497.163343][   T73] 
[  497.165065][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  497.165356][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  497.165356][   T73]      netdev_get_by_index+0x5e/0x80
[  497.165356][   T73]      fib6_nh_init+0x3d8/0x1580
[  497.165356][   T73]      ip6_route_info_create+0xf18/0x17d0
[  497.165356][   T73]      addrconf_f6i_alloc+0x265/0x560
[  497.165356][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  497.165356][   T73]      addrconf_join_anycast+0x1c0/0x220
[  497.165356][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  497.165356][   T73]      addrconf_dad_completed+0x12b/0xe20
[  497.165356][   T73]      addrconf_dad_begin+0x310/0x670
[  497.165356][   T73]      addrconf_dad_work+0x10b/0xab0
[  497.165356][   T73]      process_one_work+0x84d/0x18a0
[  497.165356][   T73]      worker_thread+0x587/0xd30
[  497.165356][   T73]      kthread+0x28a/0x350
[  497.165356][   T73]      ret_from_fork+0x31/0x70
[  497.165356][   T73]      ret_from_fork_asm+0x1a/0x30
[  497.165356][   T73] 
[  497.167285][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  497.167285][   T73]      netdev_get_by_index+0x5e/0x80
[  497.167285][   T73]      fib6_nh_init+0x3d8/0x1580
[  497.167285][   T73]      ip6_route_info_create+0xf18/0x17d0
[  497.167285][   T73]      ip6_route_add+0x1c/0x140
[  497.167285][   T73]      addrconf_prefix_route+0x2a6/0x430
[  497.167285][   T73]      inet6_addr_add+0x4f8/0xa40
[  497.167285][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  497.167285][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  497.167285][   T73]      netlink_rcv_skb+0x130/0x360
[  497.167285][   T73]      netlink_unicast+0x449/0x710
[  497.167285][   T73]      netlink_sendmsg+0x723/0xbe0
[  497.167285][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  497.167285][   T73]      ___sys_sendmsg+0xee/0x170
[  497.167285][   T73]      __sys_sendmsg+0xcd/0x170
[  497.167285][   T73]      do_syscall_64+0xc6/0x1e0
[  497.167285][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  497.167285][   T73] 
[  497.169606][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  497.169606][   T73]      netdev_get_by_index+0x5e/0x80
[  497.169606][   T73]      fib6_nh_init+0x3d8/0x1580
[  497.169606][   T73]      ip6_route_info_create+0xf18/0x17d0
[  497.169606][   T73]      addrconf_f6i_alloc+0x315/0x560
[  497.169606][   T73]      ipv6_add_addr+0x411/0x2000
[  497.169606][   T73]      inet6_addr_add+0x30e/0xa40
[  497.169606][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  497.169606][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  497.169606][   T73]      netlink_rcv_skb+0x130/0x360
[  497.169606][   T73]      netlink_unicast+0x449/0x710
[  497.169606][   T73]      netlink_sendmsg+0x723/0xbe0
[  497.169606][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  497.169606][   T73]      ___sys_sendmsg+0xee/0x170
[  497.169606][   T73]      __sys_sendmsg+0xcd/0x170
[  497.169606][   T73]      do_syscall_64+0xc6/0x1e0
[  497.169606][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  497.169606][   T73] 
[  497.172750][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  497.172750][   T73]      netdev_get_by_index+0x5e/0x80
[  497.172750][   T73]      fib6_nh_init+0x3d8/0x1580
[  497.172750][   T73]      ip6_route_info_create+0xf18/0x17d0
[  497.172750][   T73]      ip6_route_add+0x1c/0x140
[  497.172750][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  497.172750][   T73]      addrconf_add_dev+0xe2/0x170
[  497.172750][   T73]      inet6_addr_add+0x12f/0xa40
[  497.172750][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  497.172750][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  497.172750][   T73]      netlink_rcv_skb+0x130/0x360
[  497.172750][   T73]      netlink_unicast+0x449/0x710
[  497.172750][   T73]      netlink_sendmsg+0x723/0xbe0
[  497.172750][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  497.172750][   T73]      ___sys_sendmsg+0xee/0x170
[  497.172750][   T73]      __sys_sendmsg+0xcd/0x170
[  497.172750][   T73]      do_syscall_64+0xc6/0x1e0
[  497.172750][   T73] 
[  497.175844][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  497.175844][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  497.175844][   T73]      ipv6_find_idev+0x102/0x170
[  497.175844][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  497.175844][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  497.175844][   T73]      netlink_rcv_skb+0x130/0x360
[  497.175844][   T73]      netlink_unicast+0x449/0x710
[  497.175844][   T73]      netlink_sendmsg+0x723/0xbe0
[  497.175844][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  497.175844][   T73]      ___sys_sendmsg+0xee/0x170
[  497.175844][   T73]      __sys_sendmsg+0xcd/0x170
[  497.175844][   T73]      do_syscall_64+0xc6/0x1e0
[  497.175844][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  497.175844][   T73] 
[  497.178287][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  497.178287][   T73]      neigh_parms_alloc+0x1e5/0x510
[  497.178287][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  497.178287][   T73]      ipv6_find_idev+0x102/0x170
[  497.178287][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  497.178287][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  497.178287][   T73]      netlink_rcv_skb+0x130/0x360
[  497.178287][   T73]      netlink_unicast+0x449/0x710
[  497.178287][   T73]      netlink_sendmsg+0x723/0xbe0
[  497.178287][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  497.178287][   T73]      ___sys_sendmsg+0xee/0x170
[  497.178287][   T73]      __sys_sendmsg+0xcd/0x170
[  497.178287][   T73]      do_syscall_64+0xc6/0x1e0
[  497.178287][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  497.178287][   T73] 
[  497.180382][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  497.180683][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  497.180683][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  497.180683][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  497.180683][   T73]      fib6_nh_init+0xa22/0x1580
[  497.180683][   T73]      ip6_route_info_create+0xf18/0x17d0
[  497.180683][   T73]      ip6_route_add+0x1c/0x140
[  497.180683][   T73]      inet6_rtm_newroute+0x104/0x110
[  497.180683][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  497.180683][   T73]      netlink_rcv_skb+0x130/0x360
[  497.180683][   T73]      netlink_unicast+0x449/0x710
[  497.180683][   T73]      netlink_sendmsg+0x723/0xbe0
[  497.180683][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  497.180683][   T73]      ___sys_sendmsg+0xee/0x170
[  497.180683][   T73]      __sys_sendmsg+0xcd/0x170
[  497.180683][   T73]      do_syscall_64+0xc6/0x1e0
[  497.180683][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  497.180683][   T73] 
[  497.182712][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  497.182712][   T73]      dst_init+0x84/0x4a0
[  497.182712][   T73]      dst_alloc+0x97/0x150
[  497.182712][   T73]      ip6_dst_alloc+0x23/0x90
[  497.182712][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  497.182712][   T73]      ip6_pol_route+0x56f/0x840
[  497.182712][   T73]      fib6_rule_lookup+0x456/0x630
[  497.182712][   T73]      ip6_route_input+0x59c/0xa50
[  497.182712][   T73]      ipv6_rcv+0x397/0x810
[  497.182712][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  497.182712][   T73]      process_backlog+0x101/0x620
[  497.182712][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  497.182712][   T73]      net_rx_action+0x495/0xbe0
[  497.182712][   T73]      __do_softirq+0x1b5/0x7f6
[  497.182712][   T73] 
[  497.184635][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  497.184635][   T73]      netdev_get_by_index+0x5e/0x80
[  497.184635][   T73]      fib6_nh_init+0x3d8/0x1580
[  497.184635][   T73]      ip6_route_info_create+0xf18/0x17d0
[  497.184635][   T73]      ip6_route_add+0x1c/0x140
[  497.184635][   T73]      addrconf_prefix_route+0x2a6/0x430
[  497.184635][   T73]      inet6_addr_add+0x4f8/0xa40
[  497.184635][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  497.184635][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  497.184635][   T73]      netlink_rcv_skb+0x130/0x360
[  497.184635][   T73]      netlink_unicast+0x449/0x710
[  497.184635][   T73]      netlink_sendmsg+0x723/0xbe0
[  497.184635][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  497.184635][   T73]      ___sys_sendmsg+0xee/0x170
[  497.184635][   T73]      __sys_sendmsg+0xcd/0x170
[  497.184635][   T73]      do_syscall_64+0xc6/0x1e0
[  497.184635][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  497.184635][   T73] 
[  497.186849][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  497.186849][   T73]      netdev_get_by_index+0x5e/0x80
[  497.186849][   T73]      fib6_nh_init+0x3d8/0x1580
[  497.186849][   T73]      ip6_route_info_create+0xf18/0x17d0
[  497.186849][   T73]      addrconf_f6i_alloc+0x315/0x560
[  497.186849][   T73]      ipv6_add_addr+0x411/0x2000
[  497.186849][   T73]      inet6_addr_add+0x30e/0xa40
[  497.186849][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  497.186849][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  497.186849][   T73]      netlink_rcv_skb+0x130/0x360
[  497.186849][   T73]      netlink_unicast+0x449/0x710
[  497.186849][   T73]      netlink_sendmsg+0x723/0xbe0
[  497.186849][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  497.186849][   T73]      ___sys_sendmsg+0xee/0x170
[  497.186849][   T73]      __sys_sendmsg+0xcd/0x170
[  497.186849][   T73]      do_syscall_64+0xc6/0x1e0
[  497.186849][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  497.186849][   T73] 
[  497.189186][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  497.189186][   T73]      netdev_get_by_index+0x5e/0x80
[  497.189186][   T73]      fib6_nh_init+0x3d8/0x1580
[  497.189186][   T73]      ip6_route_info_create+0xf18/0x17d0
[  497.189186][   T73]      ip6_route_add+0x1c/0x140
[  497.189186][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  497.189186][   T73]      addrconf_add_dev+0xe2/0x170
[  497.189186][   T73]      inet6_addr_add+0x12f/0xa40
[  497.189186][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  497.189186][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  497.189186][   T73]      netlink_rcv_skb+0x130/0x360
[  497.189186][   T73]      netlink_unicast+0x449/0x710
[  497.189186][   T73]      netlink_sendmsg+0x723/0xbe0
[  497.189186][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  497.189186][   T73]      ___sys_sendmsg+0xee/0x170
[  497.189186][   T73]      __sys_sendmsg+0xcd/0x170
[  497.189186][   T73]      do_syscall_64+0xc6/0x1e0
[  497.189186][   T73] 
[  497.192325][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  497.192325][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  497.192325][   T73]      ipv6_find_idev+0x102/0x170
[  497.192325][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  497.192325][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  497.192325][   T73]      netlink_rcv_skb+0x130/0x360
[  497.192325][   T73]      netlink_unicast+0x449/0x710
[  497.192325][   T73]      netlink_sendmsg+0x723/0xbe0
[  497.192325][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  497.192325][   T73]      ___sys_sendmsg+0xee/0x170
[  497.192325][   T73]      __sys_sendmsg+0xcd/0x170
[  497.192325][   T73]      do_syscall_64+0xc6/0x1e0
[  497.192325][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  497.192325][   T73] 
[  497.195127][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  497.195127][   T73]      neigh_parms_alloc+0x1e5/0x510
[  497.195127][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  497.195127][   T73]      ipv6_find_idev+0x102/0x170
[  497.195127][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  497.195127][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  497.195127][   T73]      netlink_rcv_skb+0x130/0x360
[  497.195127][   T73]      netlink_unicast+0x449/0x710
[  497.195127][   T73]      netlink_sendmsg+0x723/0xbe0
[  497.195127][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  497.195127][   T73]      ___sys_sendmsg+0xee/0x170
[  497.195127][   T73]      __sys_sendmsg+0xcd/0x170
[  497.195127][   T73]      do_syscall_64+0xc6/0x1e0
[  497.195127][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  497.195127][   T73] 
[  497.198116][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  497.198654][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  497.198654][   T73]      netdev_get_by_index+0x5e/0x80
[  497.198654][   T73]      fib6_nh_init+0x3d8/0x1580
[  497.198654][   T73]      ip6_route_info_create+0xf18/0x17d0
[  497.198654][   T73]      addrconf_f6i_alloc+0x265/0x560
[  497.198654][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  497.198654][   T73]      addrconf_join_anycast+0x1c0/0x220
[  497.198654][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  497.198654][   T73]      addrconf_dad_completed+0x12b/0xe20
[  497.198654][   T73]      addrconf_dad_begin+0x310/0x670
[  497.198654][   T73]      addrconf_dad_work+0x10b/0xab0
[  497.198654][   T73]      process_one_work+0x84d/0x18a0
[  497.198654][   T73]      worker_thread+0x587/0xd30
[  497.198654][   T73]      kthread+0x28a/0x350
[  497.198654][   T73]      ret_from_fork+0x31/0x70
[  497.198654][   T73]      ret_from_fork_asm+0x1a/0x30
[  497.198654][   T73] 
[  497.201102][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  497.201102][   T73]      netdev_get_by_index+0x5e/0x80
[  497.201102][   T73]      fib6_nh_init+0x3d8/0x1580
[  497.201102][   T73]      ip6_route_info_create+0xf18/0x17d0
[  497.201102][   T73]      ip6_route_add+0x1c/0x140
[  497.201102][   T73]      addrconf_prefix_route+0x2a6/0x430
[  497.201102][   T73]      inet6_addr_add+0x4f8/0xa40
[  497.201102][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  497.201102][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  497.201102][   T73]      netlink_rcv_skb+0x130/0x360
[  497.201102][   T73]      netlink_unicast+0x449/0x710
[  497.201102][   T73]      netlink_sendmsg+0x723/0xbe0
[  497.201102][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  497.201102][   T73]      ___sys_sendmsg+0xee/0x170
[  497.201102][   T73]      __sys_sendmsg+0xcd/0x170
[  497.201102][   T73]      do_syscall_64+0xc6/0x1e0
[  497.201102][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  497.201102][   T73] 
[  497.203378][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  497.203378][   T73]      netdev_get_by_index+0x5e/0x80
[  497.203378][   T73]      fib6_nh_init+0x3d8/0x1580
[  497.203378][   T73]      ip6_route_info_create+0xf18/0x17d0
[  497.203378][   T73]      addrconf_f6i_alloc+0x315/0x560
[  497.203378][   T73]      ipv6_add_addr+0x411/0x2000
[  497.203378][   T73]      inet6_addr_add+0x30e/0xa40
[  497.203378][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  497.203378][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  497.203378][   T73]      netlink_rcv_skb+0x130/0x360
[  497.203378][   T73]      netlink_unicast+0x449/0x710
[  497.203378][   T73]      netlink_sendmsg+0x723/0xbe0
[  497.203378][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  497.203378][   T73]      ___sys_sendmsg+0xee/0x170
[  497.203378][   T73]      __sys_sendmsg+0xcd/0x170
[  497.203378][   T73]      do_syscall_64+0xc6/0x1e0
[  497.203378][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  497.203378][   T73] 
[  497.205648][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  497.205648][   T73]      netdev_get_by_index+0x5e/0x80
[  497.205648][   T73]      fib6_nh_init+0x3d8/0x1580
[  497.205648][   T73]      ip6_route_info_create+0xf18/0x17d0
[  497.205648][   T73]      ip6_route_add+0x1c/0x140
[  497.205648][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  497.205648][   T73]      addrconf_add_dev+0xe2/0x170
[  497.205648][   T73]      inet6_addr_add+0x12f/0xa40
[  497.205648][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  497.205648][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  497.205648][   T73]      netlink_rcv_skb+0x130/0x360
[  497.205648][   T73]      netlink_unicast+0x449/0x710
[  497.205648][   T73]      netlink_sendmsg+0x723/0xbe0
[  497.205648][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  497.205648][   T73]      ___sys_sendmsg+0xee/0x170
[  497.205648][   T73]      __sys_sendmsg+0xcd/0x170
[  497.205648][   T73]      do_syscall_64+0xc6/0x1e0
[  497.205648][   T73] 
[  497.207890][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  497.207890][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  497.207890][   T73]      ipv6_find_idev+0x102/0x170
[  497.207890][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  497.207890][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  497.207890][   T73]      netlink_rcv_skb+0x130/0x360
[  497.207890][   T73]      netlink_unicast+0x449/0x710
[  497.207890][   T73]      netlink_sendmsg+0x723/0xbe0
[  497.207890][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  497.207890][   T73]      ___sys_sendmsg+0xee/0x170
[  497.207890][   T73]      __sys_sendmsg+0xcd/0x170
[  497.207890][   T73]      do_syscall_64+0xc6/0x1e0
[  497.207890][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  497.207890][   T73] 
[  497.209693][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  497.209693][   T73]      neigh_parms_alloc+0x1e5/0x510
[  497.209693][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  497.209693][   T73]      ipv6_find_idev+0x102/0x170
[  497.209693][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  497.209693][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  497.209693][   T73]      netlink_rcv_skb+0x130/0x360
[  497.209693][   T73]      netlink_unicast+0x449/0x710
[  497.209693][   T73]      netlink_sendmsg+0x723/0xbe0
[  497.209693][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  497.209693][   T73]      ___sys_sendmsg+0xee/0x170
[  497.209693][   T73]      __sys_sendmsg+0xcd/0x170
[  497.209693][   T73]      do_syscall_64+0xc6/0x1e0
[  497.209693][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  497.209693][   T73] 
[  507.455782][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  507.456255][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  507.456255][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  507.456255][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  507.456255][   T73]      fib6_nh_init+0xa22/0x1580
[  507.456255][   T73]      ip6_route_info_create+0xf18/0x17d0
[  507.456255][   T73]      ip6_route_add+0x1c/0x140
[  507.456255][   T73]      inet6_rtm_newroute+0x104/0x110
[  507.456255][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  507.456255][   T73]      netlink_rcv_skb+0x130/0x360
[  507.456255][   T73]      netlink_unicast+0x449/0x710
[  507.456255][   T73]      netlink_sendmsg+0x723/0xbe0
[  507.456255][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  507.456255][   T73]      ___sys_sendmsg+0xee/0x170
[  507.456255][   T73]      __sys_sendmsg+0xcd/0x170
[  507.456255][   T73]      do_syscall_64+0xc6/0x1e0
[  507.456255][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  507.456255][   T73] 
[  507.458332][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  507.458332][   T73]      dst_init+0x84/0x4a0
[  507.458332][   T73]      dst_alloc+0x97/0x150
[  507.458332][   T73]      ip6_dst_alloc+0x23/0x90
[  507.458332][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  507.458332][   T73]      ip6_pol_route+0x56f/0x840
[  507.458332][   T73]      fib6_rule_lookup+0x456/0x630
[  507.458332][   T73]      ip6_route_input+0x59c/0xa50
[  507.458332][   T73]      ipv6_rcv+0x397/0x810
[  507.458332][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  507.458332][   T73]      process_backlog+0x101/0x620
[  507.458332][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  507.458332][   T73]      net_rx_action+0x495/0xbe0
[  507.458332][   T73]      __do_softirq+0x1b5/0x7f6
[  507.458332][   T73] 
[  507.460131][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  507.460131][   T73]      netdev_get_by_index+0x5e/0x80
[  507.460131][   T73]      fib6_nh_init+0x3d8/0x1580
[  507.460131][   T73]      ip6_route_info_create+0xf18/0x17d0
[  507.460131][   T73]      ip6_route_add+0x1c/0x140
[  507.460131][   T73]      addrconf_prefix_route+0x2a6/0x430
[  507.460131][   T73]      inet6_addr_add+0x4f8/0xa40
[  507.460131][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  507.460131][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  507.460131][   T73]      netlink_rcv_skb+0x130/0x360
[  507.460131][   T73]      netlink_unicast+0x449/0x710
[  507.460131][   T73]      netlink_sendmsg+0x723/0xbe0
[  507.460131][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  507.460131][   T73]      ___sys_sendmsg+0xee/0x170
[  507.460131][   T73]      __sys_sendmsg+0xcd/0x170
[  507.460131][   T73]      do_syscall_64+0xc6/0x1e0
[  507.460131][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  507.460131][   T73] 
[  507.462341][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  507.462341][   T73]      netdev_get_by_index+0x5e/0x80
[  507.462341][   T73]      fib6_nh_init+0x3d8/0x1580
[  507.462341][   T73]      ip6_route_info_create+0xf18/0x17d0
[  507.462341][   T73]      addrconf_f6i_alloc+0x315/0x560
[  507.462341][   T73]      ipv6_add_addr+0x411/0x2000
[  507.462341][   T73]      inet6_addr_add+0x30e/0xa40
[  507.462341][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  507.462341][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  507.462341][   T73]      netlink_rcv_skb+0x130/0x360
[  507.462341][   T73]      netlink_unicast+0x449/0x710
[  507.462341][   T73]      netlink_sendmsg+0x723/0xbe0
[  507.462341][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  507.462341][   T73]      ___sys_sendmsg+0xee/0x170
[  507.462341][   T73]      __sys_sendmsg+0xcd/0x170
[  507.462341][   T73]      do_syscall_64+0xc6/0x1e0
[  507.462341][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  507.462341][   T73] 
[  507.464568][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  507.464568][   T73]      netdev_get_by_index+0x5e/0x80
[  507.464568][   T73]      fib6_nh_init+0x3d8/0x1580
[  507.464568][   T73]      ip6_route_info_create+0xf18/0x17d0
[  507.464568][   T73]      ip6_route_add+0x1c/0x140
[  507.464568][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  507.464568][   T73]      addrconf_add_dev+0xe2/0x170
[  507.464568][   T73]      inet6_addr_add+0x12f/0xa40
[  507.464568][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  507.464568][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  507.464568][   T73]      netlink_rcv_skb+0x130/0x360
[  507.464568][   T73]      netlink_unicast+0x449/0x710
[  507.464568][   T73]      netlink_sendmsg+0x723/0xbe0
[  507.464568][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  507.464568][   T73]      ___sys_sendmsg+0xee/0x170
[  507.464568][   T73]      __sys_sendmsg+0xcd/0x170
[  507.464568][   T73]      do_syscall_64+0xc6/0x1e0
[  507.464568][   T73] 
[  507.466751][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  507.466751][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  507.466751][   T73]      ipv6_find_idev+0x102/0x170
[  507.466751][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  507.466751][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  507.466751][   T73]      netlink_rcv_skb+0x130/0x360
[  507.466751][   T73]      netlink_unicast+0x449/0x710
[  507.466751][   T73]      netlink_sendmsg+0x723/0xbe0
[  507.466751][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  507.466751][   T73]      ___sys_sendmsg+0xee/0x170
[  507.466751][   T73]      __sys_sendmsg+0xcd/0x170
[  507.466751][   T73]      do_syscall_64+0xc6/0x1e0
[  507.466751][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  507.466751][   T73] 
[  507.469235][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  507.469235][   T73]      neigh_parms_alloc+0x1e5/0x510
[  507.469235][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  507.469235][   T73]      ipv6_find_idev+0x102/0x170
[  507.469235][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  507.469235][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  507.469235][   T73]      netlink_rcv_skb+0x130/0x360
[  507.469235][   T73]      netlink_unicast+0x449/0x710
[  507.469235][   T73]      netlink_sendmsg+0x723/0xbe0
[  507.469235][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  507.469235][   T73]      ___sys_sendmsg+0xee/0x170
[  507.469235][   T73]      __sys_sendmsg+0xcd/0x170
[  507.469235][   T73]      do_syscall_64+0xc6/0x1e0
[  507.469235][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  507.469235][   T73] 
[  507.472080][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  507.472537][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  507.472537][   T73]      netdev_get_by_index+0x5e/0x80
[  507.472537][   T73]      fib6_nh_init+0x3d8/0x1580
[  507.472537][   T73]      ip6_route_info_create+0xf18/0x17d0
[  507.472537][   T73]      addrconf_f6i_alloc+0x265/0x560
[  507.472537][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  507.472537][   T73]      addrconf_join_anycast+0x1c0/0x220
[  507.472537][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  507.472537][   T73]      addrconf_dad_completed+0x12b/0xe20
[  507.472537][   T73]      addrconf_dad_begin+0x310/0x670
[  507.472537][   T73]      addrconf_dad_work+0x10b/0xab0
[  507.472537][   T73]      process_one_work+0x84d/0x18a0
[  507.472537][   T73]      worker_thread+0x587/0xd30
[  507.472537][   T73]      kthread+0x28a/0x350
[  507.472537][   T73]      ret_from_fork+0x31/0x70
[  507.472537][   T73]      ret_from_fork_asm+0x1a/0x30
[  507.472537][   T73] 
[  507.475733][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  507.475733][   T73]      netdev_get_by_index+0x5e/0x80
[  507.475733][   T73]      fib6_nh_init+0x3d8/0x1580
[  507.475733][   T73]      ip6_route_info_create+0xf18/0x17d0
[  507.475733][   T73]      ip6_route_add+0x1c/0x140
[  507.475733][   T73]      addrconf_prefix_route+0x2a6/0x430
[  507.475733][   T73]      inet6_addr_add+0x4f8/0xa40
[  507.475733][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  507.475733][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  507.475733][   T73]      netlink_rcv_skb+0x130/0x360
[  507.475733][   T73]      netlink_unicast+0x449/0x710
[  507.475733][   T73]      netlink_sendmsg+0x723/0xbe0
[  507.475733][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  507.475733][   T73]      ___sys_sendmsg+0xee/0x170
[  507.475733][   T73]      __sys_sendmsg+0xcd/0x170
[  507.475733][   T73]      do_syscall_64+0xc6/0x1e0
[  507.475733][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  507.475733][   T73] 
[  507.478602][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  507.478602][   T73]      netdev_get_by_index+0x5e/0x80
[  507.478602][   T73]      fib6_nh_init+0x3d8/0x1580
[  507.478602][   T73]      ip6_route_info_create+0xf18/0x17d0
[  507.478602][   T73]      addrconf_f6i_alloc+0x315/0x560
[  507.478602][   T73]      ipv6_add_addr+0x411/0x2000
[  507.478602][   T73]      inet6_addr_add+0x30e/0xa40
[  507.478602][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  507.478602][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  507.478602][   T73]      netlink_rcv_skb+0x130/0x360
[  507.478602][   T73]      netlink_unicast+0x449/0x710
[  507.478602][   T73]      netlink_sendmsg+0x723/0xbe0
[  507.478602][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  507.478602][   T73]      ___sys_sendmsg+0xee/0x170
[  507.478602][   T73]      __sys_sendmsg+0xcd/0x170
[  507.478602][   T73]      do_syscall_64+0xc6/0x1e0
[  507.478602][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  507.478602][   T73] 
[  507.481874][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  507.481874][   T73]      netdev_get_by_index+0x5e/0x80
[  507.481874][   T73]      fib6_nh_init+0x3d8/0x1580
[  507.481874][   T73]      ip6_route_info_create+0xf18/0x17d0
[  507.481874][   T73]      ip6_route_add+0x1c/0x140
[  507.481874][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  507.481874][   T73]      addrconf_add_dev+0xe2/0x170
[  507.481874][   T73]      inet6_addr_add+0x12f/0xa40
[  507.481874][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  507.481874][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  507.481874][   T73]      netlink_rcv_skb+0x130/0x360
[  507.481874][   T73]      netlink_unicast+0x449/0x710
[  507.481874][   T73]      netlink_sendmsg+0x723/0xbe0
[  507.481874][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  507.481874][   T73]      ___sys_sendmsg+0xee/0x170
[  507.481874][   T73]      __sys_sendmsg+0xcd/0x170
[  507.481874][   T73]      do_syscall_64+0xc6/0x1e0
[  507.481874][   T73] 
[  507.485018][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  507.485018][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  507.485018][   T73]      ipv6_find_idev+0x102/0x170
[  507.485018][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  507.485018][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  507.485018][   T73]      netlink_rcv_skb+0x130/0x360
[  507.485018][   T73]      netlink_unicast+0x449/0x710
[  507.485018][   T73]      netlink_sendmsg+0x723/0xbe0
[  507.485018][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  507.485018][   T73]      ___sys_sendmsg+0xee/0x170
[  507.485018][   T73]      __sys_sendmsg+0xcd/0x170
[  507.485018][   T73]      do_syscall_64+0xc6/0x1e0
[  507.485018][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  507.485018][   T73] 
[  507.487990][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  507.487990][   T73]      neigh_parms_alloc+0x1e5/0x510
[  507.487990][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  507.487990][   T73]      ipv6_find_idev+0x102/0x170
[  507.487990][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  507.487990][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  507.487990][   T73]      netlink_rcv_skb+0x130/0x360
[  507.487990][   T73]      netlink_unicast+0x449/0x710
[  507.487990][   T73]      netlink_sendmsg+0x723/0xbe0
[  507.487990][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  507.487990][   T73]      ___sys_sendmsg+0xee/0x170
[  507.487990][   T73]      __sys_sendmsg+0xcd/0x170
[  507.487990][   T73]      do_syscall_64+0xc6/0x1e0
[  507.487990][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  507.487990][   T73] 
[  507.490815][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  507.491129][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  507.491129][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  507.491129][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  507.491129][   T73]      fib6_nh_init+0xa22/0x1580
[  507.491129][   T73]      ip6_route_info_create+0xf18/0x17d0
[  507.491129][   T73]      ip6_route_add+0x1c/0x140
[  507.491129][   T73]      inet6_rtm_newroute+0x104/0x110
[  507.491129][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  507.491129][   T73]      netlink_rcv_skb+0x130/0x360
[  507.491129][   T73]      netlink_unicast+0x449/0x710
[  507.491129][   T73]      netlink_sendmsg+0x723/0xbe0
[  507.491129][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  507.491129][   T73]      ___sys_sendmsg+0xee/0x170
[  507.491129][   T73]      __sys_sendmsg+0xcd/0x170
[  507.491129][   T73]      do_syscall_64+0xc6/0x1e0
[  507.491129][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  507.491129][   T73] 
[  507.493262][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  507.493262][   T73]      dst_init+0x84/0x4a0
[  507.493262][   T73]      dst_alloc+0x97/0x150
[  507.493262][   T73]      ip6_dst_alloc+0x23/0x90
[  507.493262][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  507.493262][   T73]      ip6_pol_route+0x56f/0x840
[  507.493262][   T73]      fib6_rule_lookup+0x456/0x630
[  507.493262][   T73]      ip6_route_input+0x59c/0xa50
[  507.493262][   T73]      ipv6_rcv+0x397/0x810
[  507.493262][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  507.493262][   T73]      process_backlog+0x101/0x620
[  507.493262][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  507.493262][   T73]      net_rx_action+0x495/0xbe0
[  507.493262][   T73]      __do_softirq+0x1b5/0x7f6
[  507.493262][   T73] 
[  507.495341][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  507.495341][   T73]      netdev_get_by_index+0x5e/0x80
[  507.495341][   T73]      fib6_nh_init+0x3d8/0x1580
[  507.495341][   T73]      ip6_route_info_create+0xf18/0x17d0
[  507.495341][   T73]      ip6_route_add+0x1c/0x140
[  507.495341][   T73]      addrconf_prefix_route+0x2a6/0x430
[  507.495341][   T73]      inet6_addr_add+0x4f8/0xa40
[  507.495341][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  507.495341][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  507.495341][   T73]      netlink_rcv_skb+0x130/0x360
[  507.495341][   T73]      netlink_unicast+0x449/0x710
[  507.495341][   T73]      netlink_sendmsg+0x723/0xbe0
[  507.495341][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  507.495341][   T73]      ___sys_sendmsg+0xee/0x170
[  507.495341][   T73]      __sys_sendmsg+0xcd/0x170
[  507.495341][   T73]      do_syscall_64+0xc6/0x1e0
[  507.495341][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  507.495341][   T73] 
[  507.497689][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  507.497689][   T73]      netdev_get_by_index+0x5e/0x80
[  507.497689][   T73]      fib6_nh_init+0x3d8/0x1580
[  507.497689][   T73]      ip6_route_info_create+0xf18/0x17d0
[  507.497689][   T73]      addrconf_f6i_alloc+0x315/0x560
[  507.497689][   T73]      ipv6_add_addr+0x411/0x2000
[  507.497689][   T73]      inet6_addr_add+0x30e/0xa40
[  507.497689][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  507.497689][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  507.497689][   T73]      netlink_rcv_skb+0x130/0x360
[  507.497689][   T73]      netlink_unicast+0x449/0x710
[  507.497689][   T73]      netlink_sendmsg+0x723/0xbe0
[  507.497689][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  507.497689][   T73]      ___sys_sendmsg+0xee/0x170
[  507.497689][   T73]      __sys_sendmsg+0xcd/0x170
[  507.497689][   T73]      do_syscall_64+0xc6/0x1e0
[  507.497689][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  507.497689][   T73] 
[  507.500085][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  507.500085][   T73]      netdev_get_by_index+0x5e/0x80
[  507.500085][   T73]      fib6_nh_init+0x3d8/0x1580
[  507.500085][   T73]      ip6_route_info_create+0xf18/0x17d0
[  507.500085][   T73]      ip6_route_add+0x1c/0x140
[  507.500085][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  507.500085][   T73]      addrconf_add_dev+0xe2/0x170
[  507.500085][   T73]      inet6_addr_add+0x12f/0xa40
[  507.500085][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  507.500085][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  507.500085][   T73]      netlink_rcv_skb+0x130/0x360
[  507.500085][   T73]      netlink_unicast+0x449/0x710
[  507.500085][   T73]      netlink_sendmsg+0x723/0xbe0
[  507.500085][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  507.500085][   T73]      ___sys_sendmsg+0xee/0x170
[  507.500085][   T73]      __sys_sendmsg+0xcd/0x170
[  507.500085][   T73]      do_syscall_64+0xc6/0x1e0
[  507.500085][   T73] 
[  507.502485][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  507.502485][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  507.502485][   T73]      ipv6_find_idev+0x102/0x170
[  507.502485][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  507.502485][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  507.502485][   T73]      netlink_rcv_skb+0x130/0x360
[  507.502485][   T73]      netlink_unicast+0x449/0x710
[  507.502485][   T73]      netlink_sendmsg+0x723/0xbe0
[  507.502485][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  507.502485][   T73]      ___sys_sendmsg+0xee/0x170
[  507.502485][   T73]      __sys_sendmsg+0xcd/0x170
[  507.502485][   T73]      do_syscall_64+0xc6/0x1e0
[  507.502485][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  507.502485][   T73] 
[  507.504431][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  507.504431][   T73]      neigh_parms_alloc+0x1e5/0x510
[  507.504431][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  507.504431][   T73]      ipv6_find_idev+0x102/0x170
[  507.504431][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  507.504431][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  507.504431][   T73]      netlink_rcv_skb+0x130/0x360
[  507.504431][   T73]      netlink_unicast+0x449/0x710
[  507.504431][   T73]      netlink_sendmsg+0x723/0xbe0
[  507.504431][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  507.504431][   T73]      ___sys_sendmsg+0xee/0x170
[  507.504431][   T73]      __sys_sendmsg+0xcd/0x170
[  507.504431][   T73]      do_syscall_64+0xc6/0x1e0
[  507.504431][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  507.504431][   T73] 
[  507.506491][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  507.507315][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  507.507315][   T73]      netdev_get_by_index+0x5e/0x80
[  507.507315][   T73]      fib6_nh_init+0x3d8/0x1580
[  507.507315][   T73]      ip6_route_info_create+0xf18/0x17d0
[  507.507315][   T73]      addrconf_f6i_alloc+0x265/0x560
[  507.507315][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  507.507315][   T73]      addrconf_join_anycast+0x1c0/0x220
[  507.507315][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  507.507315][   T73]      addrconf_dad_completed+0x12b/0xe20
[  507.507315][   T73]      addrconf_dad_begin+0x310/0x670
[  507.507315][   T73]      addrconf_dad_work+0x10b/0xab0
[  507.507315][   T73]      process_one_work+0x84d/0x18a0
[  507.507315][   T73]      worker_thread+0x587/0xd30
[  507.507315][   T73]      kthread+0x28a/0x350
[  507.507315][   T73]      ret_from_fork+0x31/0x70
[  507.507315][   T73]      ret_from_fork_asm+0x1a/0x30
[  507.507315][   T73] 
[  507.510102][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  507.510102][   T73]      netdev_get_by_index+0x5e/0x80
[  507.510102][   T73]      fib6_nh_init+0x3d8/0x1580
[  507.510102][   T73]      ip6_route_info_create+0xf18/0x17d0
[  507.510102][   T73]      ip6_route_add+0x1c/0x140
[  507.510102][   T73]      addrconf_prefix_route+0x2a6/0x430
[  507.510102][   T73]      inet6_addr_add+0x4f8/0xa40
[  507.510102][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  507.510102][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  507.510102][   T73]      netlink_rcv_skb+0x130/0x360
[  507.510102][   T73]      netlink_unicast+0x449/0x710
[  507.510102][   T73]      netlink_sendmsg+0x723/0xbe0
[  507.510102][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  507.510102][   T73]      ___sys_sendmsg+0xee/0x170
[  507.510102][   T73]      __sys_sendmsg+0xcd/0x170
[  507.510102][   T73]      do_syscall_64+0xc6/0x1e0
[  507.510102][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  507.510102][   T73] 
[  507.513528][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  507.513528][   T73]      netdev_get_by_index+0x5e/0x80
[  507.513528][   T73]      fib6_nh_init+0x3d8/0x1580
[  507.513528][   T73]      ip6_route_info_create+0xf18/0x17d0
[  507.513528][   T73]      addrconf_f6i_alloc+0x315/0x560
[  507.513528][   T73]      ipv6_add_addr+0x411/0x2000
[  507.513528][   T73]      inet6_addr_add+0x30e/0xa40
[  507.513528][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  507.513528][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  507.513528][   T73]      netlink_rcv_skb+0x130/0x360
[  507.513528][   T73]      netlink_unicast+0x449/0x710
[  507.513528][   T73]      netlink_sendmsg+0x723/0xbe0
[  507.513528][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  507.513528][   T73]      ___sys_sendmsg+0xee/0x170
[  507.513528][   T73]      __sys_sendmsg+0xcd/0x170
[  507.513528][   T73]      do_syscall_64+0xc6/0x1e0
[  507.513528][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  507.513528][   T73] 
[  507.517193][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  507.517193][   T73]      netdev_get_by_index+0x5e/0x80
[  507.517193][   T73]      fib6_nh_init+0x3d8/0x1580
[  507.517193][   T73]      ip6_route_info_create+0xf18/0x17d0
[  507.517193][   T73]      ip6_route_add+0x1c/0x140
[  507.517193][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  507.517193][   T73]      addrconf_add_dev+0xe2/0x170
[  507.517193][   T73]      inet6_addr_add+0x12f/0xa40
[  507.517193][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  507.517193][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  507.517193][   T73]      netlink_rcv_skb+0x130/0x360
[  507.517193][   T73]      netlink_unicast+0x449/0x710
[  507.517193][   T73]      netlink_sendmsg+0x723/0xbe0
[  507.517193][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  507.517193][   T73]      ___sys_sendmsg+0xee/0x170
[  507.517193][   T73]      __sys_sendmsg+0xcd/0x170
[  507.517193][   T73]      do_syscall_64+0xc6/0x1e0
[  507.517193][   T73] 
[  507.520433][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  507.520433][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  507.520433][   T73]      ipv6_find_idev+0x102/0x170
[  507.520433][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  507.520433][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  507.520433][   T73]      netlink_rcv_skb+0x130/0x360
[  507.520433][   T73]      netlink_unicast+0x449/0x710
[  507.520433][   T73]      netlink_sendmsg+0x723/0xbe0
[  507.520433][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  507.520433][   T73]      ___sys_sendmsg+0xee/0x170
[  507.520433][   T73]      __sys_sendmsg+0xcd/0x170
[  507.520433][   T73]      do_syscall_64+0xc6/0x1e0
[  507.520433][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  507.520433][   T73] 
[  507.523096][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  507.523096][   T73]      neigh_parms_alloc+0x1e5/0x510
[  507.523096][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  507.523096][   T73]      ipv6_find_idev+0x102/0x170
[  507.523096][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  507.523096][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  507.523096][   T73]      netlink_rcv_skb+0x130/0x360
[  507.523096][   T73]      netlink_unicast+0x449/0x710
[  507.523096][   T73]      netlink_sendmsg+0x723/0xbe0
[  507.523096][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  507.523096][   T73]      ___sys_sendmsg+0xee/0x170
[  507.523096][   T73]      __sys_sendmsg+0xcd/0x170
[  507.523096][   T73]      do_syscall_64+0xc6/0x1e0
[  507.523096][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  507.523096][   T73] 
[  517.695784][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  517.696248][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  517.696248][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  517.696248][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  517.696248][   T73]      fib6_nh_init+0xa22/0x1580
[  517.696248][   T73]      ip6_route_info_create+0xf18/0x17d0
[  517.696248][   T73]      ip6_route_add+0x1c/0x140
[  517.696248][   T73]      inet6_rtm_newroute+0x104/0x110
[  517.696248][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  517.696248][   T73]      netlink_rcv_skb+0x130/0x360
[  517.696248][   T73]      netlink_unicast+0x449/0x710
[  517.696248][   T73]      netlink_sendmsg+0x723/0xbe0
[  517.696248][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  517.696248][   T73]      ___sys_sendmsg+0xee/0x170
[  517.696248][   T73]      __sys_sendmsg+0xcd/0x170
[  517.696248][   T73]      do_syscall_64+0xc6/0x1e0
[  517.696248][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  517.696248][   T73] 
[  517.698352][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  517.698352][   T73]      dst_init+0x84/0x4a0
[  517.698352][   T73]      dst_alloc+0x97/0x150
[  517.698352][   T73]      ip6_dst_alloc+0x23/0x90
[  517.698352][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  517.698352][   T73]      ip6_pol_route+0x56f/0x840
[  517.698352][   T73]      fib6_rule_lookup+0x456/0x630
[  517.698352][   T73]      ip6_route_input+0x59c/0xa50
[  517.698352][   T73]      ipv6_rcv+0x397/0x810
[  517.698352][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  517.698352][   T73]      process_backlog+0x101/0x620
[  517.698352][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  517.698352][   T73]      net_rx_action+0x495/0xbe0
[  517.698352][   T73]      __do_softirq+0x1b5/0x7f6
[  517.698352][   T73] 
[  517.700180][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  517.700180][   T73]      netdev_get_by_index+0x5e/0x80
[  517.700180][   T73]      fib6_nh_init+0x3d8/0x1580
[  517.700180][   T73]      ip6_route_info_create+0xf18/0x17d0
[  517.700180][   T73]      ip6_route_add+0x1c/0x140
[  517.700180][   T73]      addrconf_prefix_route+0x2a6/0x430
[  517.700180][   T73]      inet6_addr_add+0x4f8/0xa40
[  517.700180][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  517.700180][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  517.700180][   T73]      netlink_rcv_skb+0x130/0x360
[  517.700180][   T73]      netlink_unicast+0x449/0x710
[  517.700180][   T73]      netlink_sendmsg+0x723/0xbe0
[  517.700180][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  517.700180][   T73]      ___sys_sendmsg+0xee/0x170
[  517.700180][   T73]      __sys_sendmsg+0xcd/0x170
[  517.700180][   T73]      do_syscall_64+0xc6/0x1e0
[  517.700180][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  517.700180][   T73] 
[  517.703103][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  517.703103][   T73]      netdev_get_by_index+0x5e/0x80
[  517.703103][   T73]      fib6_nh_init+0x3d8/0x1580
[  517.703103][   T73]      ip6_route_info_create+0xf18/0x17d0
[  517.703103][   T73]      addrconf_f6i_alloc+0x315/0x560
[  517.703103][   T73]      ipv6_add_addr+0x411/0x2000
[  517.703103][   T73]      inet6_addr_add+0x30e/0xa40
[  517.703103][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  517.703103][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  517.703103][   T73]      netlink_rcv_skb+0x130/0x360
[  517.703103][   T73]      netlink_unicast+0x449/0x710
[  517.703103][   T73]      netlink_sendmsg+0x723/0xbe0
[  517.703103][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  517.703103][   T73]      ___sys_sendmsg+0xee/0x170
[  517.703103][   T73]      __sys_sendmsg+0xcd/0x170
[  517.703103][   T73]      do_syscall_64+0xc6/0x1e0
[  517.703103][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  517.703103][   T73] 
[  517.706192][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  517.706192][   T73]      netdev_get_by_index+0x5e/0x80
[  517.706192][   T73]      fib6_nh_init+0x3d8/0x1580
[  517.706192][   T73]      ip6_route_info_create+0xf18/0x17d0
[  517.706192][   T73]      ip6_route_add+0x1c/0x140
[  517.706192][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  517.706192][   T73]      addrconf_add_dev+0xe2/0x170
[  517.706192][   T73]      inet6_addr_add+0x12f/0xa40
[  517.706192][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  517.706192][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  517.706192][   T73]      netlink_rcv_skb+0x130/0x360
[  517.706192][   T73]      netlink_unicast+0x449/0x710
[  517.706192][   T73]      netlink_sendmsg+0x723/0xbe0
[  517.706192][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  517.706192][   T73]      ___sys_sendmsg+0xee/0x170
[  517.706192][   T73]      __sys_sendmsg+0xcd/0x170
[  517.706192][   T73]      do_syscall_64+0xc6/0x1e0
[  517.706192][   T73] 
[  517.709177][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  517.709177][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  517.709177][   T73]      ipv6_find_idev+0x102/0x170
[  517.709177][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  517.709177][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  517.709177][   T73]      netlink_rcv_skb+0x130/0x360
[  517.709177][   T73]      netlink_unicast+0x449/0x710
[  517.709177][   T73]      netlink_sendmsg+0x723/0xbe0
[  517.709177][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  517.709177][   T73]      ___sys_sendmsg+0xee/0x170
[  517.709177][   T73]      __sys_sendmsg+0xcd/0x170
[  517.709177][   T73]      do_syscall_64+0xc6/0x1e0
[  517.709177][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  517.709177][   T73] 
[  517.711555][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  517.711555][   T73]      neigh_parms_alloc+0x1e5/0x510
[  517.711555][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  517.711555][   T73]      ipv6_find_idev+0x102/0x170
[  517.711555][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  517.711555][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  517.711555][   T73]      netlink_rcv_skb+0x130/0x360
[  517.711555][   T73]      netlink_unicast+0x449/0x710
[  517.711555][   T73]      netlink_sendmsg+0x723/0xbe0
[  517.711555][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  517.711555][   T73]      ___sys_sendmsg+0xee/0x170
[  517.711555][   T73]      __sys_sendmsg+0xcd/0x170
[  517.711555][   T73]      do_syscall_64+0xc6/0x1e0
[  517.711555][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  517.711555][   T73] 
[  517.714481][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  517.714801][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  517.714801][   T73]      netdev_get_by_index+0x5e/0x80
[  517.714801][   T73]      fib6_nh_init+0x3d8/0x1580
[  517.714801][   T73]      ip6_route_info_create+0xf18/0x17d0
[  517.714801][   T73]      addrconf_f6i_alloc+0x265/0x560
[  517.714801][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  517.714801][   T73]      addrconf_join_anycast+0x1c0/0x220
[  517.714801][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  517.714801][   T73]      addrconf_dad_completed+0x12b/0xe20
[  517.714801][   T73]      addrconf_dad_begin+0x310/0x670
[  517.714801][   T73]      addrconf_dad_work+0x10b/0xab0
[  517.714801][   T73]      process_one_work+0x84d/0x18a0
[  517.714801][   T73]      worker_thread+0x587/0xd30
[  517.714801][   T73]      kthread+0x28a/0x350
[  517.714801][   T73]      ret_from_fork+0x31/0x70
[  517.714801][   T73]      ret_from_fork_asm+0x1a/0x30
[  517.714801][   T73] 
[  517.716900][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  517.716900][   T73]      netdev_get_by_index+0x5e/0x80
[  517.716900][   T73]      fib6_nh_init+0x3d8/0x1580
[  517.716900][   T73]      ip6_route_info_create+0xf18/0x17d0
[  517.716900][   T73]      ip6_route_add+0x1c/0x140
[  517.716900][   T73]      addrconf_prefix_route+0x2a6/0x430
[  517.716900][   T73]      inet6_addr_add+0x4f8/0xa40
[  517.716900][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  517.716900][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  517.716900][   T73]      netlink_rcv_skb+0x130/0x360
[  517.716900][   T73]      netlink_unicast+0x449/0x710
[  517.716900][   T73]      netlink_sendmsg+0x723/0xbe0
[  517.716900][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  517.716900][   T73]      ___sys_sendmsg+0xee/0x170
[  517.716900][   T73]      __sys_sendmsg+0xcd/0x170
[  517.716900][   T73]      do_syscall_64+0xc6/0x1e0
[  517.716900][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  517.716900][   T73] 
[  517.719097][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  517.719097][   T73]      netdev_get_by_index+0x5e/0x80
[  517.719097][   T73]      fib6_nh_init+0x3d8/0x1580
[  517.719097][   T73]      ip6_route_info_create+0xf18/0x17d0
[  517.719097][   T73]      addrconf_f6i_alloc+0x315/0x560
[  517.719097][   T73]      ipv6_add_addr+0x411/0x2000
[  517.719097][   T73]      inet6_addr_add+0x30e/0xa40
[  517.719097][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  517.719097][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  517.719097][   T73]      netlink_rcv_skb+0x130/0x360
[  517.719097][   T73]      netlink_unicast+0x449/0x710
[  517.719097][   T73]      netlink_sendmsg+0x723/0xbe0
[  517.719097][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  517.719097][   T73]      ___sys_sendmsg+0xee/0x170
[  517.719097][   T73]      __sys_sendmsg+0xcd/0x170
[  517.719097][   T73]      do_syscall_64+0xc6/0x1e0
[  517.719097][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  517.719097][   T73] 
[  517.721250][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  517.721250][   T73]      netdev_get_by_index+0x5e/0x80
[  517.721250][   T73]      fib6_nh_init+0x3d8/0x1580
[  517.721250][   T73]      ip6_route_info_create+0xf18/0x17d0
[  517.721250][   T73]      ip6_route_add+0x1c/0x140
[  517.721250][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  517.721250][   T73]      addrconf_add_dev+0xe2/0x170
[  517.721250][   T73]      inet6_addr_add+0x12f/0xa40
[  517.721250][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  517.721250][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  517.721250][   T73]      netlink_rcv_skb+0x130/0x360
[  517.721250][   T73]      netlink_unicast+0x449/0x710
[  517.721250][   T73]      netlink_sendmsg+0x723/0xbe0
[  517.721250][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  517.721250][   T73]      ___sys_sendmsg+0xee/0x170
[  517.721250][   T73]      __sys_sendmsg+0xcd/0x170
[  517.721250][   T73]      do_syscall_64+0xc6/0x1e0
[  517.721250][   T73] 
[  517.723428][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  517.723428][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  517.723428][   T73]      ipv6_find_idev+0x102/0x170
[  517.723428][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  517.723428][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  517.723428][   T73]      netlink_rcv_skb+0x130/0x360
[  517.723428][   T73]      netlink_unicast+0x449/0x710
[  517.723428][   T73]      netlink_sendmsg+0x723/0xbe0
[  517.723428][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  517.723428][   T73]      ___sys_sendmsg+0xee/0x170
[  517.723428][   T73]      __sys_sendmsg+0xcd/0x170
[  517.723428][   T73]      do_syscall_64+0xc6/0x1e0
[  517.723428][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  517.723428][   T73] 
[  517.725116][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  517.725116][   T73]      neigh_parms_alloc+0x1e5/0x510
[  517.725116][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  517.725116][   T73]      ipv6_find_idev+0x102/0x170
[  517.725116][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  517.725116][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  517.725116][   T73]      netlink_rcv_skb+0x130/0x360
[  517.725116][   T73]      netlink_unicast+0x449/0x710
[  517.725116][   T73]      netlink_sendmsg+0x723/0xbe0
[  517.725116][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  517.725116][   T73]      ___sys_sendmsg+0xee/0x170
[  517.725116][   T73]      __sys_sendmsg+0xcd/0x170
[  517.725116][   T73]      do_syscall_64+0xc6/0x1e0
[  517.725116][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  517.725116][   T73] 
[  517.726990][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  517.727283][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  517.727283][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  517.727283][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  517.727283][   T73]      fib6_nh_init+0xa22/0x1580
[  517.727283][   T73]      ip6_route_info_create+0xf18/0x17d0
[  517.727283][   T73]      ip6_route_add+0x1c/0x140
[  517.727283][   T73]      inet6_rtm_newroute+0x104/0x110
[  517.727283][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  517.727283][   T73]      netlink_rcv_skb+0x130/0x360
[  517.727283][   T73]      netlink_unicast+0x449/0x710
[  517.727283][   T73]      netlink_sendmsg+0x723/0xbe0
[  517.727283][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  517.727283][   T73]      ___sys_sendmsg+0xee/0x170
[  517.727283][   T73]      __sys_sendmsg+0xcd/0x170
[  517.727283][   T73]      do_syscall_64+0xc6/0x1e0
[  517.727283][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  517.727283][   T73] 
[  517.729468][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  517.729468][   T73]      dst_init+0x84/0x4a0
[  517.729468][   T73]      dst_alloc+0x97/0x150
[  517.729468][   T73]      ip6_dst_alloc+0x23/0x90
[  517.729468][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  517.729468][   T73]      ip6_pol_route+0x56f/0x840
[  517.729468][   T73]      fib6_rule_lookup+0x456/0x630
[  517.729468][   T73]      ip6_route_input+0x59c/0xa50
[  517.729468][   T73]      ipv6_rcv+0x397/0x810
[  517.729468][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  517.729468][   T73]      process_backlog+0x101/0x620
[  517.729468][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  517.729468][   T73]      net_rx_action+0x495/0xbe0
[  517.729468][   T73]      __do_softirq+0x1b5/0x7f6
[  517.729468][   T73] 
[  517.731499][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  517.731499][   T73]      netdev_get_by_index+0x5e/0x80
[  517.731499][   T73]      fib6_nh_init+0x3d8/0x1580
[  517.731499][   T73]      ip6_route_info_create+0xf18/0x17d0
[  517.731499][   T73]      ip6_route_add+0x1c/0x140
[  517.731499][   T73]      addrconf_prefix_route+0x2a6/0x430
[  517.731499][   T73]      inet6_addr_add+0x4f8/0xa40
[  517.731499][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  517.731499][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  517.731499][   T73]      netlink_rcv_skb+0x130/0x360
[  517.731499][   T73]      netlink_unicast+0x449/0x710
[  517.731499][   T73]      netlink_sendmsg+0x723/0xbe0
[  517.731499][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  517.731499][   T73]      ___sys_sendmsg+0xee/0x170
[  517.731499][   T73]      __sys_sendmsg+0xcd/0x170
[  517.731499][   T73]      do_syscall_64+0xc6/0x1e0
[  517.731499][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  517.731499][   T73] 
[  517.733819][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  517.733819][   T73]      netdev_get_by_index+0x5e/0x80
[  517.733819][   T73]      fib6_nh_init+0x3d8/0x1580
[  517.733819][   T73]      ip6_route_info_create+0xf18/0x17d0
[  517.733819][   T73]      addrconf_f6i_alloc+0x315/0x560
[  517.733819][   T73]      ipv6_add_addr+0x411/0x2000
[  517.733819][   T73]      inet6_addr_add+0x30e/0xa40
[  517.733819][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  517.733819][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  517.733819][   T73]      netlink_rcv_skb+0x130/0x360
[  517.733819][   T73]      netlink_unicast+0x449/0x710
[  517.733819][   T73]      netlink_sendmsg+0x723/0xbe0
[  517.733819][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  517.733819][   T73]      ___sys_sendmsg+0xee/0x170
[  517.733819][   T73]      __sys_sendmsg+0xcd/0x170
[  517.733819][   T73]      do_syscall_64+0xc6/0x1e0
[  517.733819][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  517.733819][   T73] 
[  517.736441][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  517.736441][   T73]      netdev_get_by_index+0x5e/0x80
[  517.736441][   T73]      fib6_nh_init+0x3d8/0x1580
[  517.736441][   T73]      ip6_route_info_create+0xf18/0x17d0
[  517.736441][   T73]      ip6_route_add+0x1c/0x140
[  517.736441][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  517.736441][   T73]      addrconf_add_dev+0xe2/0x170
[  517.736441][   T73]      inet6_addr_add+0x12f/0xa40
[  517.736441][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  517.736441][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  517.736441][   T73]      netlink_rcv_skb+0x130/0x360
[  517.736441][   T73]      netlink_unicast+0x449/0x710
[  517.736441][   T73]      netlink_sendmsg+0x723/0xbe0
[  517.736441][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  517.736441][   T73]      ___sys_sendmsg+0xee/0x170
[  517.736441][   T73]      __sys_sendmsg+0xcd/0x170
[  517.736441][   T73]      do_syscall_64+0xc6/0x1e0
[  517.736441][   T73] 
[  517.738706][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  517.738706][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  517.738706][   T73]      ipv6_find_idev+0x102/0x170
[  517.738706][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  517.738706][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  517.738706][   T73]      netlink_rcv_skb+0x130/0x360
[  517.738706][   T73]      netlink_unicast+0x449/0x710
[  517.738706][   T73]      netlink_sendmsg+0x723/0xbe0
[  517.738706][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  517.738706][   T73]      ___sys_sendmsg+0xee/0x170
[  517.738706][   T73]      __sys_sendmsg+0xcd/0x170
[  517.738706][   T73]      do_syscall_64+0xc6/0x1e0
[  517.738706][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  517.738706][   T73] 
[  517.740427][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  517.740427][   T73]      neigh_parms_alloc+0x1e5/0x510
[  517.740427][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  517.740427][   T73]      ipv6_find_idev+0x102/0x170
[  517.740427][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  517.740427][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  517.740427][   T73]      netlink_rcv_skb+0x130/0x360
[  517.740427][   T73]      netlink_unicast+0x449/0x710
[  517.740427][   T73]      netlink_sendmsg+0x723/0xbe0
[  517.740427][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  517.740427][   T73]      ___sys_sendmsg+0xee/0x170
[  517.740427][   T73]      __sys_sendmsg+0xcd/0x170
[  517.740427][   T73]      do_syscall_64+0xc6/0x1e0
[  517.740427][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  517.740427][   T73] 
[  517.742299][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  517.742646][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  517.742646][   T73]      netdev_get_by_index+0x5e/0x80
[  517.742646][   T73]      fib6_nh_init+0x3d8/0x1580
[  517.742646][   T73]      ip6_route_info_create+0xf18/0x17d0
[  517.742646][   T73]      addrconf_f6i_alloc+0x265/0x560
[  517.742646][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  517.742646][   T73]      addrconf_join_anycast+0x1c0/0x220
[  517.742646][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  517.742646][   T73]      addrconf_dad_completed+0x12b/0xe20
[  517.742646][   T73]      addrconf_dad_begin+0x310/0x670
[  517.742646][   T73]      addrconf_dad_work+0x10b/0xab0
[  517.742646][   T73]      process_one_work+0x84d/0x18a0
[  517.742646][   T73]      worker_thread+0x587/0xd30
[  517.742646][   T73]      kthread+0x28a/0x350
[  517.742646][   T73]      ret_from_fork+0x31/0x70
[  517.742646][   T73]      ret_from_fork_asm+0x1a/0x30
[  517.742646][   T73] 
[  517.745650][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  517.745650][   T73]      netdev_get_by_index+0x5e/0x80
[  517.745650][   T73]      fib6_nh_init+0x3d8/0x1580
[  517.745650][   T73]      ip6_route_info_create+0xf18/0x17d0
[  517.745650][   T73]      ip6_route_add+0x1c/0x140
[  517.745650][   T73]      addrconf_prefix_route+0x2a6/0x430
[  517.745650][   T73]      inet6_addr_add+0x4f8/0xa40
[  517.745650][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  517.745650][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  517.745650][   T73]      netlink_rcv_skb+0x130/0x360
[  517.745650][   T73]      netlink_unicast+0x449/0x710
[  517.745650][   T73]      netlink_sendmsg+0x723/0xbe0
[  517.745650][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  517.745650][   T73]      ___sys_sendmsg+0xee/0x170
[  517.745650][   T73]      __sys_sendmsg+0xcd/0x170
[  517.745650][   T73]      do_syscall_64+0xc6/0x1e0
[  517.745650][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  517.745650][   T73] 
[  517.749317][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  517.749317][   T73]      netdev_get_by_index+0x5e/0x80
[  517.749317][   T73]      fib6_nh_init+0x3d8/0x1580
[  517.749317][   T73]      ip6_route_info_create+0xf18/0x17d0
[  517.749317][   T73]      addrconf_f6i_alloc+0x315/0x560
[  517.749317][   T73]      ipv6_add_addr+0x411/0x2000
[  517.749317][   T73]      inet6_addr_add+0x30e/0xa40
[  517.749317][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  517.749317][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  517.749317][   T73]      netlink_rcv_skb+0x130/0x360
[  517.749317][   T73]      netlink_unicast+0x449/0x710
[  517.749317][   T73]      netlink_sendmsg+0x723/0xbe0
[  517.749317][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  517.749317][   T73]      ___sys_sendmsg+0xee/0x170
[  517.749317][   T73]      __sys_sendmsg+0xcd/0x170
[  517.749317][   T73]      do_syscall_64+0xc6/0x1e0
[  517.749317][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  517.749317][   T73] 
[  517.753111][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  517.753111][   T73]      netdev_get_by_index+0x5e/0x80
[  517.753111][   T73]      fib6_nh_init+0x3d8/0x1580
[  517.753111][   T73]      ip6_route_info_create+0xf18/0x17d0
[  517.753111][   T73]      ip6_route_add+0x1c/0x140
[  517.753111][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  517.753111][   T73]      addrconf_add_dev+0xe2/0x170
[  517.753111][   T73]      inet6_addr_add+0x12f/0xa40
[  517.753111][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  517.753111][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  517.753111][   T73]      netlink_rcv_skb+0x130/0x360
[  517.753111][   T73]      netlink_unicast+0x449/0x710
[  517.753111][   T73]      netlink_sendmsg+0x723/0xbe0
[  517.753111][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  517.753111][   T73]      ___sys_sendmsg+0xee/0x170
[  517.753111][   T73]      __sys_sendmsg+0xcd/0x170
[  517.753111][   T73]      do_syscall_64+0xc6/0x1e0
[  517.753111][   T73] 
[  517.756734][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  517.756734][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  517.756734][   T73]      ipv6_find_idev+0x102/0x170
[  517.756734][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  517.756734][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  517.756734][   T73]      netlink_rcv_skb+0x130/0x360
[  517.756734][   T73]      netlink_unicast+0x449/0x710
[  517.756734][   T73]      netlink_sendmsg+0x723/0xbe0
[  517.756734][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  517.756734][   T73]      ___sys_sendmsg+0xee/0x170
[  517.756734][   T73]      __sys_sendmsg+0xcd/0x170
[  517.756734][   T73]      do_syscall_64+0xc6/0x1e0
[  517.756734][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  517.756734][   T73] 
[  517.759534][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  517.759534][   T73]      neigh_parms_alloc+0x1e5/0x510
[  517.759534][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  517.759534][   T73]      ipv6_find_idev+0x102/0x170
[  517.759534][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  517.759534][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  517.759534][   T73]      netlink_rcv_skb+0x130/0x360
[  517.759534][   T73]      netlink_unicast+0x449/0x710
[  517.759534][   T73]      netlink_sendmsg+0x723/0xbe0
[  517.759534][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  517.759534][   T73]      ___sys_sendmsg+0xee/0x170
[  517.759534][   T73]      __sys_sendmsg+0xcd/0x170
[  517.759534][   T73]      do_syscall_64+0xc6/0x1e0
[  517.759534][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  517.759534][   T73] 
[  527.807884][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  527.808337][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  527.808337][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  527.808337][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  527.808337][   T73]      fib6_nh_init+0xa22/0x1580
[  527.808337][   T73]      ip6_route_info_create+0xf18/0x17d0
[  527.808337][   T73]      ip6_route_add+0x1c/0x140
[  527.808337][   T73]      inet6_rtm_newroute+0x104/0x110
[  527.808337][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  527.808337][   T73]      netlink_rcv_skb+0x130/0x360
[  527.808337][   T73]      netlink_unicast+0x449/0x710
[  527.808337][   T73]      netlink_sendmsg+0x723/0xbe0
[  527.808337][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  527.808337][   T73]      ___sys_sendmsg+0xee/0x170
[  527.808337][   T73]      __sys_sendmsg+0xcd/0x170
[  527.808337][   T73]      do_syscall_64+0xc6/0x1e0
[  527.808337][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  527.808337][   T73] 
[  527.810247][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  527.810247][   T73]      dst_init+0x84/0x4a0
[  527.810247][   T73]      dst_alloc+0x97/0x150
[  527.810247][   T73]      ip6_dst_alloc+0x23/0x90
[  527.810247][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  527.810247][   T73]      ip6_pol_route+0x56f/0x840
[  527.810247][   T73]      fib6_rule_lookup+0x456/0x630
[  527.810247][   T73]      ip6_route_input+0x59c/0xa50
[  527.810247][   T73]      ipv6_rcv+0x397/0x810
[  527.810247][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  527.810247][   T73]      process_backlog+0x101/0x620
[  527.810247][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  527.810247][   T73]      net_rx_action+0x495/0xbe0
[  527.810247][   T73]      __do_softirq+0x1b5/0x7f6
[  527.810247][   T73] 
[  527.811907][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  527.811907][   T73]      netdev_get_by_index+0x5e/0x80
[  527.811907][   T73]      fib6_nh_init+0x3d8/0x1580
[  527.811907][   T73]      ip6_route_info_create+0xf18/0x17d0
[  527.811907][   T73]      ip6_route_add+0x1c/0x140
[  527.811907][   T73]      addrconf_prefix_route+0x2a6/0x430
[  527.811907][   T73]      inet6_addr_add+0x4f8/0xa40
[  527.811907][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  527.811907][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  527.811907][   T73]      netlink_rcv_skb+0x130/0x360
[  527.811907][   T73]      netlink_unicast+0x449/0x710
[  527.811907][   T73]      netlink_sendmsg+0x723/0xbe0
[  527.811907][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  527.811907][   T73]      ___sys_sendmsg+0xee/0x170
[  527.811907][   T73]      __sys_sendmsg+0xcd/0x170
[  527.811907][   T73]      do_syscall_64+0xc6/0x1e0
[  527.811907][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  527.811907][   T73] 
[  527.813937][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  527.813937][   T73]      netdev_get_by_index+0x5e/0x80
[  527.813937][   T73]      fib6_nh_init+0x3d8/0x1580
[  527.813937][   T73]      ip6_route_info_create+0xf18/0x17d0
[  527.813937][   T73]      addrconf_f6i_alloc+0x315/0x560
[  527.813937][   T73]      ipv6_add_addr+0x411/0x2000
[  527.813937][   T73]      inet6_addr_add+0x30e/0xa40
[  527.813937][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  527.813937][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  527.813937][   T73]      netlink_rcv_skb+0x130/0x360
[  527.813937][   T73]      netlink_unicast+0x449/0x710
[  527.813937][   T73]      netlink_sendmsg+0x723/0xbe0
[  527.813937][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  527.813937][   T73]      ___sys_sendmsg+0xee/0x170
[  527.813937][   T73]      __sys_sendmsg+0xcd/0x170
[  527.813937][   T73]      do_syscall_64+0xc6/0x1e0
[  527.813937][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  527.813937][   T73] 
[  527.815981][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  527.815981][   T73]      netdev_get_by_index+0x5e/0x80
[  527.815981][   T73]      fib6_nh_init+0x3d8/0x1580
[  527.815981][   T73]      ip6_route_info_create+0xf18/0x17d0
[  527.815981][   T73]      ip6_route_add+0x1c/0x140
[  527.815981][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  527.815981][   T73]      addrconf_add_dev+0xe2/0x170
[  527.815981][   T73]      inet6_addr_add+0x12f/0xa40
[  527.815981][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  527.815981][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  527.815981][   T73]      netlink_rcv_skb+0x130/0x360
[  527.815981][   T73]      netlink_unicast+0x449/0x710
[  527.815981][   T73]      netlink_sendmsg+0x723/0xbe0
[  527.815981][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  527.815981][   T73]      ___sys_sendmsg+0xee/0x170
[  527.815981][   T73]      __sys_sendmsg+0xcd/0x170
[  527.815981][   T73]      do_syscall_64+0xc6/0x1e0
[  527.815981][   T73] 
[  527.817972][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  527.817972][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  527.817972][   T73]      ipv6_find_idev+0x102/0x170
[  527.817972][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  527.817972][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  527.817972][   T73]      netlink_rcv_skb+0x130/0x360
[  527.817972][   T73]      netlink_unicast+0x449/0x710
[  527.817972][   T73]      netlink_sendmsg+0x723/0xbe0
[  527.817972][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  527.817972][   T73]      ___sys_sendmsg+0xee/0x170
[  527.817972][   T73]      __sys_sendmsg+0xcd/0x170
[  527.817972][   T73]      do_syscall_64+0xc6/0x1e0
[  527.817972][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  527.817972][   T73] 
[  527.819563][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  527.819563][   T73]      neigh_parms_alloc+0x1e5/0x510
[  527.819563][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  527.819563][   T73]      ipv6_find_idev+0x102/0x170
[  527.819563][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  527.819563][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  527.819563][   T73]      netlink_rcv_skb+0x130/0x360
[  527.819563][   T73]      netlink_unicast+0x449/0x710
[  527.819563][   T73]      netlink_sendmsg+0x723/0xbe0
[  527.819563][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  527.819563][   T73]      ___sys_sendmsg+0xee/0x170
[  527.819563][   T73]      __sys_sendmsg+0xcd/0x170
[  527.819563][   T73]      do_syscall_64+0xc6/0x1e0
[  527.819563][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  527.819563][   T73] 
[  527.821318][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  527.821603][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  527.821603][   T73]      netdev_get_by_index+0x5e/0x80
[  527.821603][   T73]      fib6_nh_init+0x3d8/0x1580
[  527.821603][   T73]      ip6_route_info_create+0xf18/0x17d0
[  527.821603][   T73]      addrconf_f6i_alloc+0x265/0x560
[  527.821603][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  527.821603][   T73]      addrconf_join_anycast+0x1c0/0x220
[  527.821603][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  527.821603][   T73]      addrconf_dad_completed+0x12b/0xe20
[  527.821603][   T73]      addrconf_dad_begin+0x310/0x670
[  527.821603][   T73]      addrconf_dad_work+0x10b/0xab0
[  527.821603][   T73]      process_one_work+0x84d/0x18a0
[  527.821603][   T73]      worker_thread+0x587/0xd30
[  527.821603][   T73]      kthread+0x28a/0x350
[  527.821603][   T73]      ret_from_fork+0x31/0x70
[  527.821603][   T73]      ret_from_fork_asm+0x1a/0x30
[  527.821603][   T73] 
[  527.823702][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  527.823702][   T73]      netdev_get_by_index+0x5e/0x80
[  527.823702][   T73]      fib6_nh_init+0x3d8/0x1580
[  527.823702][   T73]      ip6_route_info_create+0xf18/0x17d0
[  527.823702][   T73]      ip6_route_add+0x1c/0x140
[  527.823702][   T73]      addrconf_prefix_route+0x2a6/0x430
[  527.823702][   T73]      inet6_addr_add+0x4f8/0xa40
[  527.823702][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  527.823702][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  527.823702][   T73]      netlink_rcv_skb+0x130/0x360
[  527.823702][   T73]      netlink_unicast+0x449/0x710
[  527.823702][   T73]      netlink_sendmsg+0x723/0xbe0
[  527.823702][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  527.823702][   T73]      ___sys_sendmsg+0xee/0x170
[  527.823702][   T73]      __sys_sendmsg+0xcd/0x170
[  527.823702][   T73]      do_syscall_64+0xc6/0x1e0
[  527.823702][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  527.823702][   T73] 
[  527.825890][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  527.825890][   T73]      netdev_get_by_index+0x5e/0x80
[  527.825890][   T73]      fib6_nh_init+0x3d8/0x1580
[  527.825890][   T73]      ip6_route_info_create+0xf18/0x17d0
[  527.825890][   T73]      addrconf_f6i_alloc+0x315/0x560
[  527.825890][   T73]      ipv6_add_addr+0x411/0x2000
[  527.825890][   T73]      inet6_addr_add+0x30e/0xa40
[  527.825890][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  527.825890][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  527.825890][   T73]      netlink_rcv_skb+0x130/0x360
[  527.825890][   T73]      netlink_unicast+0x449/0x710
[  527.825890][   T73]      netlink_sendmsg+0x723/0xbe0
[  527.825890][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  527.825890][   T73]      ___sys_sendmsg+0xee/0x170
[  527.825890][   T73]      __sys_sendmsg+0xcd/0x170
[  527.825890][   T73]      do_syscall_64+0xc6/0x1e0
[  527.825890][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  527.825890][   T73] 
[  527.828087][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  527.828087][   T73]      netdev_get_by_index+0x5e/0x80
[  527.828087][   T73]      fib6_nh_init+0x3d8/0x1580
[  527.828087][   T73]      ip6_route_info_create+0xf18/0x17d0
[  527.828087][   T73]      ip6_route_add+0x1c/0x140
[  527.828087][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  527.828087][   T73]      addrconf_add_dev+0xe2/0x170
[  527.828087][   T73]      inet6_addr_add+0x12f/0xa40
[  527.828087][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  527.828087][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  527.828087][   T73]      netlink_rcv_skb+0x130/0x360
[  527.828087][   T73]      netlink_unicast+0x449/0x710
[  527.828087][   T73]      netlink_sendmsg+0x723/0xbe0
[  527.828087][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  527.828087][   T73]      ___sys_sendmsg+0xee/0x170
[  527.828087][   T73]      __sys_sendmsg+0xcd/0x170
[  527.828087][   T73]      do_syscall_64+0xc6/0x1e0
[  527.828087][   T73] 
[  527.830252][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  527.830252][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  527.830252][   T73]      ipv6_find_idev+0x102/0x170
[  527.830252][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  527.830252][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  527.830252][   T73]      netlink_rcv_skb+0x130/0x360
[  527.830252][   T73]      netlink_unicast+0x449/0x710
[  527.830252][   T73]      netlink_sendmsg+0x723/0xbe0
[  527.830252][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  527.830252][   T73]      ___sys_sendmsg+0xee/0x170
[  527.830252][   T73]      __sys_sendmsg+0xcd/0x170
[  527.830252][   T73]      do_syscall_64+0xc6/0x1e0
[  527.830252][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  527.830252][   T73] 
[  527.831981][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  527.831981][   T73]      neigh_parms_alloc+0x1e5/0x510
[  527.831981][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  527.831981][   T73]      ipv6_find_idev+0x102/0x170
[  527.831981][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  527.831981][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  527.831981][   T73]      netlink_rcv_skb+0x130/0x360
[  527.831981][   T73]      netlink_unicast+0x449/0x710
[  527.831981][   T73]      netlink_sendmsg+0x723/0xbe0
[  527.831981][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  527.831981][   T73]      ___sys_sendmsg+0xee/0x170
[  527.831981][   T73]      __sys_sendmsg+0xcd/0x170
[  527.831981][   T73]      do_syscall_64+0xc6/0x1e0
[  527.831981][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  527.831981][   T73] 
[  527.833862][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  527.834156][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  527.834156][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  527.834156][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  527.834156][   T73]      fib6_nh_init+0xa22/0x1580
[  527.834156][   T73]      ip6_route_info_create+0xf18/0x17d0
[  527.834156][   T73]      ip6_route_add+0x1c/0x140
[  527.834156][   T73]      inet6_rtm_newroute+0x104/0x110
[  527.834156][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  527.834156][   T73]      netlink_rcv_skb+0x130/0x360
[  527.834156][   T73]      netlink_unicast+0x449/0x710
[  527.834156][   T73]      netlink_sendmsg+0x723/0xbe0
[  527.834156][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  527.834156][   T73]      ___sys_sendmsg+0xee/0x170
[  527.834156][   T73]      __sys_sendmsg+0xcd/0x170
[  527.834156][   T73]      do_syscall_64+0xc6/0x1e0
[  527.834156][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  527.834156][   T73] 
[  527.836353][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  527.836353][   T73]      dst_init+0x84/0x4a0
[  527.836353][   T73]      dst_alloc+0x97/0x150
[  527.836353][   T73]      ip6_dst_alloc+0x23/0x90
[  527.836353][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  527.836353][   T73]      ip6_pol_route+0x56f/0x840
[  527.836353][   T73]      fib6_rule_lookup+0x456/0x630
[  527.836353][   T73]      ip6_route_input+0x59c/0xa50
[  527.836353][   T73]      ipv6_rcv+0x397/0x810
[  527.836353][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  527.836353][   T73]      process_backlog+0x101/0x620
[  527.836353][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  527.836353][   T73]      net_rx_action+0x495/0xbe0
[  527.836353][   T73]      __do_softirq+0x1b5/0x7f6
[  527.836353][   T73] 
[  527.838394][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  527.838394][   T73]      netdev_get_by_index+0x5e/0x80
[  527.838394][   T73]      fib6_nh_init+0x3d8/0x1580
[  527.838394][   T73]      ip6_route_info_create+0xf18/0x17d0
[  527.838394][   T73]      ip6_route_add+0x1c/0x140
[  527.838394][   T73]      addrconf_prefix_route+0x2a6/0x430
[  527.838394][   T73]      inet6_addr_add+0x4f8/0xa40
[  527.838394][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  527.838394][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  527.838394][   T73]      netlink_rcv_skb+0x130/0x360
[  527.838394][   T73]      netlink_unicast+0x449/0x710
[  527.838394][   T73]      netlink_sendmsg+0x723/0xbe0
[  527.838394][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  527.838394][   T73]      ___sys_sendmsg+0xee/0x170
[  527.838394][   T73]      __sys_sendmsg+0xcd/0x170
[  527.838394][   T73]      do_syscall_64+0xc6/0x1e0
[  527.838394][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  527.838394][   T73] 
[  527.840817][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  527.840817][   T73]      netdev_get_by_index+0x5e/0x80
[  527.840817][   T73]      fib6_nh_init+0x3d8/0x1580
[  527.840817][   T73]      ip6_route_info_create+0xf18/0x17d0
[  527.840817][   T73]      addrconf_f6i_alloc+0x315/0x560
[  527.840817][   T73]      ipv6_add_addr+0x411/0x2000
[  527.840817][   T73]      inet6_addr_add+0x30e/0xa40
[  527.840817][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  527.840817][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  527.840817][   T73]      netlink_rcv_skb+0x130/0x360
[  527.840817][   T73]      netlink_unicast+0x449/0x710
[  527.840817][   T73]      netlink_sendmsg+0x723/0xbe0
[  527.840817][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  527.840817][   T73]      ___sys_sendmsg+0xee/0x170
[  527.840817][   T73]      __sys_sendmsg+0xcd/0x170
[  527.840817][   T73]      do_syscall_64+0xc6/0x1e0
[  527.840817][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  527.840817][   T73] 
[  527.843253][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  527.843253][   T73]      netdev_get_by_index+0x5e/0x80
[  527.843253][   T73]      fib6_nh_init+0x3d8/0x1580
[  527.843253][   T73]      ip6_route_info_create+0xf18/0x17d0
[  527.843253][   T73]      ip6_route_add+0x1c/0x140
[  527.843253][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  527.843253][   T73]      addrconf_add_dev+0xe2/0x170
[  527.843253][   T73]      inet6_addr_add+0x12f/0xa40
[  527.843253][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  527.843253][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  527.843253][   T73]      netlink_rcv_skb+0x130/0x360
[  527.843253][   T73]      netlink_unicast+0x449/0x710
[  527.843253][   T73]      netlink_sendmsg+0x723/0xbe0
[  527.843253][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  527.843253][   T73]      ___sys_sendmsg+0xee/0x170
[  527.843253][   T73]      __sys_sendmsg+0xcd/0x170
[  527.843253][   T73]      do_syscall_64+0xc6/0x1e0
[  527.843253][   T73] 
[  527.845625][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  527.845625][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  527.845625][   T73]      ipv6_find_idev+0x102/0x170
[  527.845625][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  527.845625][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  527.845625][   T73]      netlink_rcv_skb+0x130/0x360
[  527.845625][   T73]      netlink_unicast+0x449/0x710
[  527.845625][   T73]      netlink_sendmsg+0x723/0xbe0
[  527.845625][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  527.845625][   T73]      ___sys_sendmsg+0xee/0x170
[  527.845625][   T73]      __sys_sendmsg+0xcd/0x170
[  527.845625][   T73]      do_syscall_64+0xc6/0x1e0
[  527.845625][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  527.845625][   T73] 
[  527.847465][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  527.847465][   T73]      neigh_parms_alloc+0x1e5/0x510
[  527.847465][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  527.847465][   T73]      ipv6_find_idev+0x102/0x170
[  527.847465][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  527.847465][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  527.847465][   T73]      netlink_rcv_skb+0x130/0x360
[  527.847465][   T73]      netlink_unicast+0x449/0x710
[  527.847465][   T73]      netlink_sendmsg+0x723/0xbe0
[  527.847465][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  527.847465][   T73]      ___sys_sendmsg+0xee/0x170
[  527.847465][   T73]      __sys_sendmsg+0xcd/0x170
[  527.847465][   T73]      do_syscall_64+0xc6/0x1e0
[  527.847465][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  527.847465][   T73] 
[  527.849518][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  527.850330][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  527.850330][   T73]      netdev_get_by_index+0x5e/0x80
[  527.850330][   T73]      fib6_nh_init+0x3d8/0x1580
[  527.850330][   T73]      ip6_route_info_create+0xf18/0x17d0
[  527.850330][   T73]      addrconf_f6i_alloc+0x265/0x560
[  527.850330][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  527.850330][   T73]      addrconf_join_anycast+0x1c0/0x220
[  527.850330][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  527.850330][   T73]      addrconf_dad_completed+0x12b/0xe20
[  527.850330][   T73]      addrconf_dad_begin+0x310/0x670
[  527.850330][   T73]      addrconf_dad_work+0x10b/0xab0
[  527.850330][   T73]      process_one_work+0x84d/0x18a0
[  527.850330][   T73]      worker_thread+0x587/0xd30
[  527.850330][   T73]      kthread+0x28a/0x350
[  527.850330][   T73]      ret_from_fork+0x31/0x70
[  527.850330][   T73]      ret_from_fork_asm+0x1a/0x30
[  527.850330][   T73] 
[  527.852421][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  527.852421][   T73]      netdev_get_by_index+0x5e/0x80
[  527.852421][   T73]      fib6_nh_init+0x3d8/0x1580
[  527.852421][   T73]      ip6_route_info_create+0xf18/0x17d0
[  527.852421][   T73]      ip6_route_add+0x1c/0x140
[  527.852421][   T73]      addrconf_prefix_route+0x2a6/0x430
[  527.852421][   T73]      inet6_addr_add+0x4f8/0xa40
[  527.852421][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  527.852421][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  527.852421][   T73]      netlink_rcv_skb+0x130/0x360
[  527.852421][   T73]      netlink_unicast+0x449/0x710
[  527.852421][   T73]      netlink_sendmsg+0x723/0xbe0
[  527.852421][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  527.852421][   T73]      ___sys_sendmsg+0xee/0x170
[  527.852421][   T73]      __sys_sendmsg+0xcd/0x170
[  527.852421][   T73]      do_syscall_64+0xc6/0x1e0
[  527.852421][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  527.852421][   T73] 
[  527.854741][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  527.854741][   T73]      netdev_get_by_index+0x5e/0x80
[  527.854741][   T73]      fib6_nh_init+0x3d8/0x1580
[  527.854741][   T73]      ip6_route_info_create+0xf18/0x17d0
[  527.854741][   T73]      addrconf_f6i_alloc+0x315/0x560
[  527.854741][   T73]      ipv6_add_addr+0x411/0x2000
[  527.854741][   T73]      inet6_addr_add+0x30e/0xa40
[  527.854741][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  527.854741][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  527.854741][   T73]      netlink_rcv_skb+0x130/0x360
[  527.854741][   T73]      netlink_unicast+0x449/0x710
[  527.854741][   T73]      netlink_sendmsg+0x723/0xbe0
[  527.854741][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  527.854741][   T73]      ___sys_sendmsg+0xee/0x170
[  527.854741][   T73]      __sys_sendmsg+0xcd/0x170
[  527.854741][   T73]      do_syscall_64+0xc6/0x1e0
[  527.854741][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  527.854741][   T73] 
[  527.857131][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  527.857131][   T73]      netdev_get_by_index+0x5e/0x80
[  527.857131][   T73]      fib6_nh_init+0x3d8/0x1580
[  527.857131][   T73]      ip6_route_info_create+0xf18/0x17d0
[  527.857131][   T73]      ip6_route_add+0x1c/0x140
[  527.857131][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  527.857131][   T73]      addrconf_add_dev+0xe2/0x170
[  527.857131][   T73]      inet6_addr_add+0x12f/0xa40
[  527.857131][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  527.857131][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  527.857131][   T73]      netlink_rcv_skb+0x130/0x360
[  527.857131][   T73]      netlink_unicast+0x449/0x710
[  527.857131][   T73]      netlink_sendmsg+0x723/0xbe0
[  527.857131][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  527.857131][   T73]      ___sys_sendmsg+0xee/0x170
[  527.857131][   T73]      __sys_sendmsg+0xcd/0x170
[  527.857131][   T73]      do_syscall_64+0xc6/0x1e0
[  527.857131][   T73] 
[  527.859499][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  527.859499][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  527.859499][   T73]      ipv6_find_idev+0x102/0x170
[  527.859499][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  527.859499][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  527.859499][   T73]      netlink_rcv_skb+0x130/0x360
[  527.859499][   T73]      netlink_unicast+0x449/0x710
[  527.859499][   T73]      netlink_sendmsg+0x723/0xbe0
[  527.859499][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  527.859499][   T73]      ___sys_sendmsg+0xee/0x170
[  527.859499][   T73]      __sys_sendmsg+0xcd/0x170
[  527.859499][   T73]      do_syscall_64+0xc6/0x1e0
[  527.859499][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  527.859499][   T73] 
[  527.861335][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  527.861335][   T73]      neigh_parms_alloc+0x1e5/0x510
[  527.861335][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  527.861335][   T73]      ipv6_find_idev+0x102/0x170
[  527.861335][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  527.861335][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  527.861335][   T73]      netlink_rcv_skb+0x130/0x360
[  527.861335][   T73]      netlink_unicast+0x449/0x710
[  527.861335][   T73]      netlink_sendmsg+0x723/0xbe0
[  527.861335][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  527.861335][   T73]      ___sys_sendmsg+0xee/0x170
[  527.861335][   T73]      __sys_sendmsg+0xcd/0x170
[  527.861335][   T73]      do_syscall_64+0xc6/0x1e0
[  527.861335][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  527.861335][   T73] 
[  537.871716][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  537.872199][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  537.872199][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  537.872199][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  537.872199][   T73]      fib6_nh_init+0xa22/0x1580
[  537.872199][   T73]      ip6_route_info_create+0xf18/0x17d0
[  537.872199][   T73]      ip6_route_add+0x1c/0x140
[  537.872199][   T73]      inet6_rtm_newroute+0x104/0x110
[  537.872199][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  537.872199][   T73]      netlink_rcv_skb+0x130/0x360
[  537.872199][   T73]      netlink_unicast+0x449/0x710
[  537.872199][   T73]      netlink_sendmsg+0x723/0xbe0
[  537.872199][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  537.872199][   T73]      ___sys_sendmsg+0xee/0x170
[  537.872199][   T73]      __sys_sendmsg+0xcd/0x170
[  537.872199][   T73]      do_syscall_64+0xc6/0x1e0
[  537.872199][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  537.872199][   T73] 
[  537.874295][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  537.874295][   T73]      dst_init+0x84/0x4a0
[  537.874295][   T73]      dst_alloc+0x97/0x150
[  537.874295][   T73]      ip6_dst_alloc+0x23/0x90
[  537.874295][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  537.874295][   T73]      ip6_pol_route+0x56f/0x840
[  537.874295][   T73]      fib6_rule_lookup+0x456/0x630
[  537.874295][   T73]      ip6_route_input+0x59c/0xa50
[  537.874295][   T73]      ipv6_rcv+0x397/0x810
[  537.874295][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  537.874295][   T73]      process_backlog+0x101/0x620
[  537.874295][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  537.874295][   T73]      net_rx_action+0x495/0xbe0
[  537.874295][   T73]      __do_softirq+0x1b5/0x7f6
[  537.874295][   T73] 
[  537.876081][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  537.876081][   T73]      netdev_get_by_index+0x5e/0x80
[  537.876081][   T73]      fib6_nh_init+0x3d8/0x1580
[  537.876081][   T73]      ip6_route_info_create+0xf18/0x17d0
[  537.876081][   T73]      ip6_route_add+0x1c/0x140
[  537.876081][   T73]      addrconf_prefix_route+0x2a6/0x430
[  537.876081][   T73]      inet6_addr_add+0x4f8/0xa40
[  537.876081][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  537.876081][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  537.876081][   T73]      netlink_rcv_skb+0x130/0x360
[  537.876081][   T73]      netlink_unicast+0x449/0x710
[  537.876081][   T73]      netlink_sendmsg+0x723/0xbe0
[  537.876081][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  537.876081][   T73]      ___sys_sendmsg+0xee/0x170
[  537.876081][   T73]      __sys_sendmsg+0xcd/0x170
[  537.876081][   T73]      do_syscall_64+0xc6/0x1e0
[  537.876081][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  537.876081][   T73] 
[  537.878274][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  537.878274][   T73]      netdev_get_by_index+0x5e/0x80
[  537.878274][   T73]      fib6_nh_init+0x3d8/0x1580
[  537.878274][   T73]      ip6_route_info_create+0xf18/0x17d0
[  537.878274][   T73]      addrconf_f6i_alloc+0x315/0x560
[  537.878274][   T73]      ipv6_add_addr+0x411/0x2000
[  537.878274][   T73]      inet6_addr_add+0x30e/0xa40
[  537.878274][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  537.878274][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  537.878274][   T73]      netlink_rcv_skb+0x130/0x360
[  537.878274][   T73]      netlink_unicast+0x449/0x710
[  537.878274][   T73]      netlink_sendmsg+0x723/0xbe0
[  537.878274][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  537.878274][   T73]      ___sys_sendmsg+0xee/0x170
[  537.878274][   T73]      __sys_sendmsg+0xcd/0x170
[  537.878274][   T73]      do_syscall_64+0xc6/0x1e0
[  537.878274][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  537.878274][   T73] 
[  537.880449][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  537.880449][   T73]      netdev_get_by_index+0x5e/0x80
[  537.880449][   T73]      fib6_nh_init+0x3d8/0x1580
[  537.880449][   T73]      ip6_route_info_create+0xf18/0x17d0
[  537.880449][   T73]      ip6_route_add+0x1c/0x140
[  537.880449][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  537.880449][   T73]      addrconf_add_dev+0xe2/0x170
[  537.880449][   T73]      inet6_addr_add+0x12f/0xa40
[  537.880449][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  537.880449][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  537.880449][   T73]      netlink_rcv_skb+0x130/0x360
[  537.880449][   T73]      netlink_unicast+0x449/0x710
[  537.880449][   T73]      netlink_sendmsg+0x723/0xbe0
[  537.880449][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  537.880449][   T73]      ___sys_sendmsg+0xee/0x170
[  537.880449][   T73]      __sys_sendmsg+0xcd/0x170
[  537.880449][   T73]      do_syscall_64+0xc6/0x1e0
[  537.880449][   T73] 
[  537.882623][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  537.882623][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  537.882623][   T73]      ipv6_find_idev+0x102/0x170
[  537.882623][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  537.882623][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  537.882623][   T73]      netlink_rcv_skb+0x130/0x360
[  537.882623][   T73]      netlink_unicast+0x449/0x710
[  537.882623][   T73]      netlink_sendmsg+0x723/0xbe0
[  537.882623][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  537.882623][   T73]      ___sys_sendmsg+0xee/0x170
[  537.882623][   T73]      __sys_sendmsg+0xcd/0x170
[  537.882623][   T73]      do_syscall_64+0xc6/0x1e0
[  537.882623][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  537.882623][   T73] 
[  537.884323][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  537.884323][   T73]      neigh_parms_alloc+0x1e5/0x510
[  537.884323][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  537.884323][   T73]      ipv6_find_idev+0x102/0x170
[  537.884323][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  537.884323][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  537.884323][   T73]      netlink_rcv_skb+0x130/0x360
[  537.884323][   T73]      netlink_unicast+0x449/0x710
[  537.884323][   T73]      netlink_sendmsg+0x723/0xbe0
[  537.884323][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  537.884323][   T73]      ___sys_sendmsg+0xee/0x170
[  537.884323][   T73]      __sys_sendmsg+0xcd/0x170
[  537.884323][   T73]      do_syscall_64+0xc6/0x1e0
[  537.884323][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  537.884323][   T73] 
[  537.886196][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  537.886508][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  537.886508][   T73]      netdev_get_by_index+0x5e/0x80
[  537.886508][   T73]      fib6_nh_init+0x3d8/0x1580
[  537.886508][   T73]      ip6_route_info_create+0xf18/0x17d0
[  537.886508][   T73]      addrconf_f6i_alloc+0x265/0x560
[  537.886508][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  537.886508][   T73]      addrconf_join_anycast+0x1c0/0x220
[  537.886508][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  537.886508][   T73]      addrconf_dad_completed+0x12b/0xe20
[  537.886508][   T73]      addrconf_dad_begin+0x310/0x670
[  537.886508][   T73]      addrconf_dad_work+0x10b/0xab0
[  537.886508][   T73]      process_one_work+0x84d/0x18a0
[  537.886508][   T73]      worker_thread+0x587/0xd30
[  537.886508][   T73]      kthread+0x28a/0x350
[  537.886508][   T73]      ret_from_fork+0x31/0x70
[  537.886508][   T73]      ret_from_fork_asm+0x1a/0x30
[  537.886508][   T73] 
[  537.888642][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  537.888642][   T73]      netdev_get_by_index+0x5e/0x80
[  537.888642][   T73]      fib6_nh_init+0x3d8/0x1580
[  537.888642][   T73]      ip6_route_info_create+0xf18/0x17d0
[  537.888642][   T73]      ip6_route_add+0x1c/0x140
[  537.888642][   T73]      addrconf_prefix_route+0x2a6/0x430
[  537.888642][   T73]      inet6_addr_add+0x4f8/0xa40
[  537.888642][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  537.888642][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  537.888642][   T73]      netlink_rcv_skb+0x130/0x360
[  537.888642][   T73]      netlink_unicast+0x449/0x710
[  537.888642][   T73]      netlink_sendmsg+0x723/0xbe0
[  537.888642][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  537.888642][   T73]      ___sys_sendmsg+0xee/0x170
[  537.888642][   T73]      __sys_sendmsg+0xcd/0x170
[  537.888642][   T73]      do_syscall_64+0xc6/0x1e0
[  537.888642][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  537.888642][   T73] 
[  537.890895][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  537.890895][   T73]      netdev_get_by_index+0x5e/0x80
[  537.890895][   T73]      fib6_nh_init+0x3d8/0x1580
[  537.890895][   T73]      ip6_route_info_create+0xf18/0x17d0
[  537.890895][   T73]      addrconf_f6i_alloc+0x315/0x560
[  537.890895][   T73]      ipv6_add_addr+0x411/0x2000
[  537.890895][   T73]      inet6_addr_add+0x30e/0xa40
[  537.890895][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  537.890895][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  537.890895][   T73]      netlink_rcv_skb+0x130/0x360
[  537.890895][   T73]      netlink_unicast+0x449/0x710
[  537.890895][   T73]      netlink_sendmsg+0x723/0xbe0
[  537.890895][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  537.890895][   T73]      ___sys_sendmsg+0xee/0x170
[  537.890895][   T73]      __sys_sendmsg+0xcd/0x170
[  537.890895][   T73]      do_syscall_64+0xc6/0x1e0
[  537.890895][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  537.890895][   T73] 
[  537.893143][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  537.893143][   T73]      netdev_get_by_index+0x5e/0x80
[  537.893143][   T73]      fib6_nh_init+0x3d8/0x1580
[  537.893143][   T73]      ip6_route_info_create+0xf18/0x17d0
[  537.893143][   T73]      ip6_route_add+0x1c/0x140
[  537.893143][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  537.893143][   T73]      addrconf_add_dev+0xe2/0x170
[  537.893143][   T73]      inet6_addr_add+0x12f/0xa40
[  537.893143][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  537.893143][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  537.893143][   T73]      netlink_rcv_skb+0x130/0x360
[  537.893143][   T73]      netlink_unicast+0x449/0x710
[  537.893143][   T73]      netlink_sendmsg+0x723/0xbe0
[  537.893143][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  537.893143][   T73]      ___sys_sendmsg+0xee/0x170
[  537.893143][   T73]      __sys_sendmsg+0xcd/0x170
[  537.893143][   T73]      do_syscall_64+0xc6/0x1e0
[  537.893143][   T73] 
[  537.895354][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  537.895354][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  537.895354][   T73]      ipv6_find_idev+0x102/0x170
[  537.895354][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  537.895354][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  537.895354][   T73]      netlink_rcv_skb+0x130/0x360
[  537.895354][   T73]      netlink_unicast+0x449/0x710
[  537.895354][   T73]      netlink_sendmsg+0x723/0xbe0
[  537.895354][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  537.895354][   T73]      ___sys_sendmsg+0xee/0x170
[  537.895354][   T73]      __sys_sendmsg+0xcd/0x170
[  537.895354][   T73]      do_syscall_64+0xc6/0x1e0
[  537.895354][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  537.895354][   T73] 
[  537.897077][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  537.897077][   T73]      neigh_parms_alloc+0x1e5/0x510
[  537.897077][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  537.897077][   T73]      ipv6_find_idev+0x102/0x170
[  537.897077][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  537.897077][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  537.897077][   T73]      netlink_rcv_skb+0x130/0x360
[  537.897077][   T73]      netlink_unicast+0x449/0x710
[  537.897077][   T73]      netlink_sendmsg+0x723/0xbe0
[  537.897077][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  537.897077][   T73]      ___sys_sendmsg+0xee/0x170
[  537.897077][   T73]      __sys_sendmsg+0xcd/0x170
[  537.897077][   T73]      do_syscall_64+0xc6/0x1e0
[  537.897077][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  537.897077][   T73] 
[  537.898967][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  537.899259][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  537.899259][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  537.899259][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  537.899259][   T73]      fib6_nh_init+0xa22/0x1580
[  537.899259][   T73]      ip6_route_info_create+0xf18/0x17d0
[  537.899259][   T73]      ip6_route_add+0x1c/0x140
[  537.899259][   T73]      inet6_rtm_newroute+0x104/0x110
[  537.899259][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  537.899259][   T73]      netlink_rcv_skb+0x130/0x360
[  537.899259][   T73]      netlink_unicast+0x449/0x710
[  537.899259][   T73]      netlink_sendmsg+0x723/0xbe0
[  537.899259][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  537.899259][   T73]      ___sys_sendmsg+0xee/0x170
[  537.899259][   T73]      __sys_sendmsg+0xcd/0x170
[  537.899259][   T73]      do_syscall_64+0xc6/0x1e0
[  537.899259][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  537.899259][   T73] 
[  537.901497][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  537.901497][   T73]      dst_init+0x84/0x4a0
[  537.901497][   T73]      dst_alloc+0x97/0x150
[  537.901497][   T73]      ip6_dst_alloc+0x23/0x90
[  537.901497][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  537.901497][   T73]      ip6_pol_route+0x56f/0x840
[  537.901497][   T73]      fib6_rule_lookup+0x456/0x630
[  537.901497][   T73]      ip6_route_input+0x59c/0xa50
[  537.901497][   T73]      ipv6_rcv+0x397/0x810
[  537.901497][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  537.901497][   T73]      process_backlog+0x101/0x620
[  537.901497][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  537.901497][   T73]      net_rx_action+0x495/0xbe0
[  537.901497][   T73]      __do_softirq+0x1b5/0x7f6
[  537.901497][   T73] 
[  537.903598][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  537.903598][   T73]      netdev_get_by_index+0x5e/0x80
[  537.903598][   T73]      fib6_nh_init+0x3d8/0x1580
[  537.903598][   T73]      ip6_route_info_create+0xf18/0x17d0
[  537.903598][   T73]      ip6_route_add+0x1c/0x140
[  537.903598][   T73]      addrconf_prefix_route+0x2a6/0x430
[  537.903598][   T73]      inet6_addr_add+0x4f8/0xa40
[  537.903598][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  537.903598][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  537.903598][   T73]      netlink_rcv_skb+0x130/0x360
[  537.903598][   T73]      netlink_unicast+0x449/0x710
[  537.903598][   T73]      netlink_sendmsg+0x723/0xbe0
[  537.903598][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  537.903598][   T73]      ___sys_sendmsg+0xee/0x170
[  537.903598][   T73]      __sys_sendmsg+0xcd/0x170
[  537.903598][   T73]      do_syscall_64+0xc6/0x1e0
[  537.903598][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  537.903598][   T73] 
[  537.905770][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  537.905770][   T73]      netdev_get_by_index+0x5e/0x80
[  537.905770][   T73]      fib6_nh_init+0x3d8/0x1580
[  537.905770][   T73]      ip6_route_info_create+0xf18/0x17d0
[  537.905770][   T73]      addrconf_f6i_alloc+0x315/0x560
[  537.905770][   T73]      ipv6_add_addr+0x411/0x2000
[  537.905770][   T73]      inet6_addr_add+0x30e/0xa40
[  537.905770][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  537.905770][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  537.905770][   T73]      netlink_rcv_skb+0x130/0x360
[  537.905770][   T73]      netlink_unicast+0x449/0x710
[  537.905770][   T73]      netlink_sendmsg+0x723/0xbe0
[  537.905770][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  537.905770][   T73]      ___sys_sendmsg+0xee/0x170
[  537.905770][   T73]      __sys_sendmsg+0xcd/0x170
[  537.905770][   T73]      do_syscall_64+0xc6/0x1e0
[  537.905770][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  537.905770][   T73] 
[  537.908005][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  537.908005][   T73]      netdev_get_by_index+0x5e/0x80
[  537.908005][   T73]      fib6_nh_init+0x3d8/0x1580
[  537.908005][   T73]      ip6_route_info_create+0xf18/0x17d0
[  537.908005][   T73]      ip6_route_add+0x1c/0x140
[  537.908005][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  537.908005][   T73]      addrconf_add_dev+0xe2/0x170
[  537.908005][   T73]      inet6_addr_add+0x12f/0xa40
[  537.908005][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  537.908005][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  537.908005][   T73]      netlink_rcv_skb+0x130/0x360
[  537.908005][   T73]      netlink_unicast+0x449/0x710
[  537.908005][   T73]      netlink_sendmsg+0x723/0xbe0
[  537.908005][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  537.908005][   T73]      ___sys_sendmsg+0xee/0x170
[  537.908005][   T73]      __sys_sendmsg+0xcd/0x170
[  537.908005][   T73]      do_syscall_64+0xc6/0x1e0
[  537.908005][   T73] 
[  537.910194][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  537.910194][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  537.910194][   T73]      ipv6_find_idev+0x102/0x170
[  537.910194][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  537.910194][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  537.910194][   T73]      netlink_rcv_skb+0x130/0x360
[  537.910194][   T73]      netlink_unicast+0x449/0x710
[  537.910194][   T73]      netlink_sendmsg+0x723/0xbe0
[  537.910194][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  537.910194][   T73]      ___sys_sendmsg+0xee/0x170
[  537.910194][   T73]      __sys_sendmsg+0xcd/0x170
[  537.910194][   T73]      do_syscall_64+0xc6/0x1e0
[  537.910194][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  537.910194][   T73] 
[  537.911906][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  537.911906][   T73]      neigh_parms_alloc+0x1e5/0x510
[  537.911906][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  537.911906][   T73]      ipv6_find_idev+0x102/0x170
[  537.911906][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  537.911906][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  537.911906][   T73]      netlink_rcv_skb+0x130/0x360
[  537.911906][   T73]      netlink_unicast+0x449/0x710
[  537.911906][   T73]      netlink_sendmsg+0x723/0xbe0
[  537.911906][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  537.911906][   T73]      ___sys_sendmsg+0xee/0x170
[  537.911906][   T73]      __sys_sendmsg+0xcd/0x170
[  537.911906][   T73]      do_syscall_64+0xc6/0x1e0
[  537.911906][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  537.911906][   T73] 
[  537.913851][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  537.914191][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  537.914191][   T73]      netdev_get_by_index+0x5e/0x80
[  537.914191][   T73]      fib6_nh_init+0x3d8/0x1580
[  537.914191][   T73]      ip6_route_info_create+0xf18/0x17d0
[  537.914191][   T73]      addrconf_f6i_alloc+0x265/0x560
[  537.914191][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  537.914191][   T73]      addrconf_join_anycast+0x1c0/0x220
[  537.914191][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  537.914191][   T73]      addrconf_dad_completed+0x12b/0xe20
[  537.914191][   T73]      addrconf_dad_begin+0x310/0x670
[  537.914191][   T73]      addrconf_dad_work+0x10b/0xab0
[  537.914191][   T73]      process_one_work+0x84d/0x18a0
[  537.914191][   T73]      worker_thread+0x587/0xd30
[  537.914191][   T73]      kthread+0x28a/0x350
[  537.914191][   T73]      ret_from_fork+0x31/0x70
[  537.914191][   T73]      ret_from_fork_asm+0x1a/0x30
[  537.914191][   T73] 
[  537.916275][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  537.916275][   T73]      netdev_get_by_index+0x5e/0x80
[  537.916275][   T73]      fib6_nh_init+0x3d8/0x1580
[  537.916275][   T73]      ip6_route_info_create+0xf18/0x17d0
[  537.916275][   T73]      ip6_route_add+0x1c/0x140
[  537.916275][   T73]      addrconf_prefix_route+0x2a6/0x430
[  537.916275][   T73]      inet6_addr_add+0x4f8/0xa40
[  537.916275][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  537.916275][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  537.916275][   T73]      netlink_rcv_skb+0x130/0x360
[  537.916275][   T73]      netlink_unicast+0x449/0x710
[  537.916275][   T73]      netlink_sendmsg+0x723/0xbe0
[  537.916275][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  537.916275][   T73]      ___sys_sendmsg+0xee/0x170
[  537.916275][   T73]      __sys_sendmsg+0xcd/0x170
[  537.916275][   T73]      do_syscall_64+0xc6/0x1e0
[  537.916275][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  537.916275][   T73] 
[  537.918630][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  537.918630][   T73]      netdev_get_by_index+0x5e/0x80
[  537.918630][   T73]      fib6_nh_init+0x3d8/0x1580
[  537.918630][   T73]      ip6_route_info_create+0xf18/0x17d0
[  537.918630][   T73]      addrconf_f6i_alloc+0x315/0x560
[  537.918630][   T73]      ipv6_add_addr+0x411/0x2000
[  537.918630][   T73]      inet6_addr_add+0x30e/0xa40
[  537.918630][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  537.918630][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  537.918630][   T73]      netlink_rcv_skb+0x130/0x360
[  537.918630][   T73]      netlink_unicast+0x449/0x710
[  537.918630][   T73]      netlink_sendmsg+0x723/0xbe0
[  537.918630][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  537.918630][   T73]      ___sys_sendmsg+0xee/0x170
[  537.918630][   T73]      __sys_sendmsg+0xcd/0x170
[  537.918630][   T73]      do_syscall_64+0xc6/0x1e0
[  537.918630][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  537.918630][   T73] 
[  537.921082][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  537.921082][   T73]      netdev_get_by_index+0x5e/0x80
[  537.921082][   T73]      fib6_nh_init+0x3d8/0x1580
[  537.921082][   T73]      ip6_route_info_create+0xf18/0x17d0
[  537.921082][   T73]      ip6_route_add+0x1c/0x140
[  537.921082][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  537.921082][   T73]      addrconf_add_dev+0xe2/0x170
[  537.921082][   T73]      inet6_addr_add+0x12f/0xa40
[  537.921082][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  537.921082][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  537.921082][   T73]      netlink_rcv_skb+0x130/0x360
[  537.921082][   T73]      netlink_unicast+0x449/0x710
[  537.921082][   T73]      netlink_sendmsg+0x723/0xbe0
[  537.921082][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  537.921082][   T73]      ___sys_sendmsg+0xee/0x170
[  537.921082][   T73]      __sys_sendmsg+0xcd/0x170
[  537.921082][   T73]      do_syscall_64+0xc6/0x1e0
[  537.921082][   T73] 
[  537.923604][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  537.923604][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  537.923604][   T73]      ipv6_find_idev+0x102/0x170
[  537.923604][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  537.923604][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  537.923604][   T73]      netlink_rcv_skb+0x130/0x360
[  537.923604][   T73]      netlink_unicast+0x449/0x710
[  537.923604][   T73]      netlink_sendmsg+0x723/0xbe0
[  537.923604][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  537.923604][   T73]      ___sys_sendmsg+0xee/0x170
[  537.923604][   T73]      __sys_sendmsg+0xcd/0x170
[  537.923604][   T73]      do_syscall_64+0xc6/0x1e0
[  537.923604][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  537.923604][   T73] 
[  537.925475][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  537.925475][   T73]      neigh_parms_alloc+0x1e5/0x510
[  537.925475][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  537.925475][   T73]      ipv6_find_idev+0x102/0x170
[  537.925475][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  537.925475][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  537.925475][   T73]      netlink_rcv_skb+0x130/0x360
[  537.925475][   T73]      netlink_unicast+0x449/0x710
[  537.925475][   T73]      netlink_sendmsg+0x723/0xbe0
[  537.925475][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  537.925475][   T73]      ___sys_sendmsg+0xee/0x170
[  537.925475][   T73]      __sys_sendmsg+0xcd/0x170
[  537.925475][   T73]      do_syscall_64+0xc6/0x1e0
[  537.925475][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  537.925475][   T73] 
[  548.119783][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  548.120256][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  548.120256][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  548.120256][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  548.120256][   T73]      fib6_nh_init+0xa22/0x1580
[  548.120256][   T73]      ip6_route_info_create+0xf18/0x17d0
[  548.120256][   T73]      ip6_route_add+0x1c/0x140
[  548.120256][   T73]      inet6_rtm_newroute+0x104/0x110
[  548.120256][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  548.120256][   T73]      netlink_rcv_skb+0x130/0x360
[  548.120256][   T73]      netlink_unicast+0x449/0x710
[  548.120256][   T73]      netlink_sendmsg+0x723/0xbe0
[  548.120256][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  548.120256][   T73]      ___sys_sendmsg+0xee/0x170
[  548.120256][   T73]      __sys_sendmsg+0xcd/0x170
[  548.120256][   T73]      do_syscall_64+0xc6/0x1e0
[  548.120256][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  548.120256][   T73] 
[  548.122350][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  548.122350][   T73]      dst_init+0x84/0x4a0
[  548.122350][   T73]      dst_alloc+0x97/0x150
[  548.122350][   T73]      ip6_dst_alloc+0x23/0x90
[  548.122350][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  548.122350][   T73]      ip6_pol_route+0x56f/0x840
[  548.122350][   T73]      fib6_rule_lookup+0x456/0x630
[  548.122350][   T73]      ip6_route_input+0x59c/0xa50
[  548.122350][   T73]      ipv6_rcv+0x397/0x810
[  548.122350][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  548.122350][   T73]      process_backlog+0x101/0x620
[  548.122350][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  548.122350][   T73]      net_rx_action+0x495/0xbe0
[  548.122350][   T73]      __do_softirq+0x1b5/0x7f6
[  548.122350][   T73] 
[  548.124176][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  548.124176][   T73]      netdev_get_by_index+0x5e/0x80
[  548.124176][   T73]      fib6_nh_init+0x3d8/0x1580
[  548.124176][   T73]      ip6_route_info_create+0xf18/0x17d0
[  548.124176][   T73]      ip6_route_add+0x1c/0x140
[  548.124176][   T73]      addrconf_prefix_route+0x2a6/0x430
[  548.124176][   T73]      inet6_addr_add+0x4f8/0xa40
[  548.124176][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  548.124176][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  548.124176][   T73]      netlink_rcv_skb+0x130/0x360
[  548.124176][   T73]      netlink_unicast+0x449/0x710
[  548.124176][   T73]      netlink_sendmsg+0x723/0xbe0
[  548.124176][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  548.124176][   T73]      ___sys_sendmsg+0xee/0x170
[  548.124176][   T73]      __sys_sendmsg+0xcd/0x170
[  548.124176][   T73]      do_syscall_64+0xc6/0x1e0
[  548.124176][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  548.124176][   T73] 
[  548.126403][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  548.126403][   T73]      netdev_get_by_index+0x5e/0x80
[  548.126403][   T73]      fib6_nh_init+0x3d8/0x1580
[  548.126403][   T73]      ip6_route_info_create+0xf18/0x17d0
[  548.126403][   T73]      addrconf_f6i_alloc+0x315/0x560
[  548.126403][   T73]      ipv6_add_addr+0x411/0x2000
[  548.126403][   T73]      inet6_addr_add+0x30e/0xa40
[  548.126403][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  548.126403][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  548.126403][   T73]      netlink_rcv_skb+0x130/0x360
[  548.126403][   T73]      netlink_unicast+0x449/0x710
[  548.126403][   T73]      netlink_sendmsg+0x723/0xbe0
[  548.126403][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  548.126403][   T73]      ___sys_sendmsg+0xee/0x170
[  548.126403][   T73]      __sys_sendmsg+0xcd/0x170
[  548.126403][   T73]      do_syscall_64+0xc6/0x1e0
[  548.126403][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  548.126403][   T73] 
[  548.128630][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  548.128630][   T73]      netdev_get_by_index+0x5e/0x80
[  548.128630][   T73]      fib6_nh_init+0x3d8/0x1580
[  548.128630][   T73]      ip6_route_info_create+0xf18/0x17d0
[  548.128630][   T73]      ip6_route_add+0x1c/0x140
[  548.128630][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  548.128630][   T73]      addrconf_add_dev+0xe2/0x170
[  548.128630][   T73]      inet6_addr_add+0x12f/0xa40
[  548.128630][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  548.128630][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  548.128630][   T73]      netlink_rcv_skb+0x130/0x360
[  548.128630][   T73]      netlink_unicast+0x449/0x710
[  548.128630][   T73]      netlink_sendmsg+0x723/0xbe0
[  548.128630][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  548.128630][   T73]      ___sys_sendmsg+0xee/0x170
[  548.128630][   T73]      __sys_sendmsg+0xcd/0x170
[  548.128630][   T73]      do_syscall_64+0xc6/0x1e0
[  548.128630][   T73] 
[  548.130852][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  548.130852][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  548.130852][   T73]      ipv6_find_idev+0x102/0x170
[  548.130852][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  548.130852][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  548.130852][   T73]      netlink_rcv_skb+0x130/0x360
[  548.130852][   T73]      netlink_unicast+0x449/0x710
[  548.130852][   T73]      netlink_sendmsg+0x723/0xbe0
[  548.130852][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  548.130852][   T73]      ___sys_sendmsg+0xee/0x170
[  548.130852][   T73]      __sys_sendmsg+0xcd/0x170
[  548.130852][   T73]      do_syscall_64+0xc6/0x1e0
[  548.130852][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  548.130852][   T73] 
[  548.132646][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  548.132646][   T73]      neigh_parms_alloc+0x1e5/0x510
[  548.132646][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  548.132646][   T73]      ipv6_find_idev+0x102/0x170
[  548.132646][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  548.132646][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  548.132646][   T73]      netlink_rcv_skb+0x130/0x360
[  548.132646][   T73]      netlink_unicast+0x449/0x710
[  548.132646][   T73]      netlink_sendmsg+0x723/0xbe0
[  548.132646][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  548.132646][   T73]      ___sys_sendmsg+0xee/0x170
[  548.132646][   T73]      __sys_sendmsg+0xcd/0x170
[  548.132646][   T73]      do_syscall_64+0xc6/0x1e0
[  548.132646][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  548.132646][   T73] 
[  548.134602][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  548.134943][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  548.134943][   T73]      netdev_get_by_index+0x5e/0x80
[  548.134943][   T73]      fib6_nh_init+0x3d8/0x1580
[  548.134943][   T73]      ip6_route_info_create+0xf18/0x17d0
[  548.134943][   T73]      addrconf_f6i_alloc+0x265/0x560
[  548.134943][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  548.134943][   T73]      addrconf_join_anycast+0x1c0/0x220
[  548.134943][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  548.134943][   T73]      addrconf_dad_completed+0x12b/0xe20
[  548.134943][   T73]      addrconf_dad_begin+0x310/0x670
[  548.134943][   T73]      addrconf_dad_work+0x10b/0xab0
[  548.134943][   T73]      process_one_work+0x84d/0x18a0
[  548.134943][   T73]      worker_thread+0x587/0xd30
[  548.134943][   T73]      kthread+0x28a/0x350
[  548.134943][   T73]      ret_from_fork+0x31/0x70
[  548.134943][   T73]      ret_from_fork_asm+0x1a/0x30
[  548.134943][   T73] 
[  548.137122][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  548.137122][   T73]      netdev_get_by_index+0x5e/0x80
[  548.137122][   T73]      fib6_nh_init+0x3d8/0x1580
[  548.137122][   T73]      ip6_route_info_create+0xf18/0x17d0
[  548.137122][   T73]      ip6_route_add+0x1c/0x140
[  548.137122][   T73]      addrconf_prefix_route+0x2a6/0x430
[  548.137122][   T73]      inet6_addr_add+0x4f8/0xa40
[  548.137122][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  548.137122][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  548.137122][   T73]      netlink_rcv_skb+0x130/0x360
[  548.137122][   T73]      netlink_unicast+0x449/0x710
[  548.137122][   T73]      netlink_sendmsg+0x723/0xbe0
[  548.137122][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  548.137122][   T73]      ___sys_sendmsg+0xee/0x170
[  548.137122][   T73]      __sys_sendmsg+0xcd/0x170
[  548.137122][   T73]      do_syscall_64+0xc6/0x1e0
[  548.137122][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  548.137122][   T73] 
[  548.139387][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  548.139387][   T73]      netdev_get_by_index+0x5e/0x80
[  548.139387][   T73]      fib6_nh_init+0x3d8/0x1580
[  548.139387][   T73]      ip6_route_info_create+0xf18/0x17d0
[  548.139387][   T73]      addrconf_f6i_alloc+0x315/0x560
[  548.139387][   T73]      ipv6_add_addr+0x411/0x2000
[  548.139387][   T73]      inet6_addr_add+0x30e/0xa40
[  548.139387][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  548.139387][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  548.139387][   T73]      netlink_rcv_skb+0x130/0x360
[  548.139387][   T73]      netlink_unicast+0x449/0x710
[  548.139387][   T73]      netlink_sendmsg+0x723/0xbe0
[  548.139387][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  548.139387][   T73]      ___sys_sendmsg+0xee/0x170
[  548.139387][   T73]      __sys_sendmsg+0xcd/0x170
[  548.139387][   T73]      do_syscall_64+0xc6/0x1e0
[  548.139387][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  548.139387][   T73] 
[  548.141626][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  548.141626][   T73]      netdev_get_by_index+0x5e/0x80
[  548.141626][   T73]      fib6_nh_init+0x3d8/0x1580
[  548.141626][   T73]      ip6_route_info_create+0xf18/0x17d0
[  548.141626][   T73]      ip6_route_add+0x1c/0x140
[  548.141626][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  548.141626][   T73]      addrconf_add_dev+0xe2/0x170
[  548.141626][   T73]      inet6_addr_add+0x12f/0xa40
[  548.141626][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  548.141626][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  548.141626][   T73]      netlink_rcv_skb+0x130/0x360
[  548.141626][   T73]      netlink_unicast+0x449/0x710
[  548.141626][   T73]      netlink_sendmsg+0x723/0xbe0
[  548.141626][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  548.141626][   T73]      ___sys_sendmsg+0xee/0x170
[  548.141626][   T73]      __sys_sendmsg+0xcd/0x170
[  548.141626][   T73]      do_syscall_64+0xc6/0x1e0
[  548.141626][   T73] 
[  548.143931][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  548.143931][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  548.143931][   T73]      ipv6_find_idev+0x102/0x170
[  548.143931][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  548.143931][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  548.143931][   T73]      netlink_rcv_skb+0x130/0x360
[  548.143931][   T73]      netlink_unicast+0x449/0x710
[  548.143931][   T73]      netlink_sendmsg+0x723/0xbe0
[  548.143931][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  548.143931][   T73]      ___sys_sendmsg+0xee/0x170
[  548.143931][   T73]      __sys_sendmsg+0xcd/0x170
[  548.143931][   T73]      do_syscall_64+0xc6/0x1e0
[  548.143931][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  548.143931][   T73] 
[  548.145700][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  548.145700][   T73]      neigh_parms_alloc+0x1e5/0x510
[  548.145700][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  548.145700][   T73]      ipv6_find_idev+0x102/0x170
[  548.145700][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  548.145700][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  548.145700][   T73]      netlink_rcv_skb+0x130/0x360
[  548.145700][   T73]      netlink_unicast+0x449/0x710
[  548.145700][   T73]      netlink_sendmsg+0x723/0xbe0
[  548.145700][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  548.145700][   T73]      ___sys_sendmsg+0xee/0x170
[  548.145700][   T73]      __sys_sendmsg+0xcd/0x170
[  548.145700][   T73]      do_syscall_64+0xc6/0x1e0
[  548.145700][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  548.145700][   T73] 
[  548.147624][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  548.148398][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  548.148398][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  548.148398][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  548.148398][   T73]      fib6_nh_init+0xa22/0x1580
[  548.148398][   T73]      ip6_route_info_create+0xf18/0x17d0
[  548.148398][   T73]      ip6_route_add+0x1c/0x140
[  548.148398][   T73]      inet6_rtm_newroute+0x104/0x110
[  548.148398][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  548.148398][   T73]      netlink_rcv_skb+0x130/0x360
[  548.148398][   T73]      netlink_unicast+0x449/0x710
[  548.148398][   T73]      netlink_sendmsg+0x723/0xbe0
[  548.148398][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  548.148398][   T73]      ___sys_sendmsg+0xee/0x170
[  548.148398][   T73]      __sys_sendmsg+0xcd/0x170
[  548.148398][   T73]      do_syscall_64+0xc6/0x1e0
[  548.148398][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  548.148398][   T73] 
[  548.150402][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  548.150402][   T73]      dst_init+0x84/0x4a0
[  548.150402][   T73]      dst_alloc+0x97/0x150
[  548.150402][   T73]      ip6_dst_alloc+0x23/0x90
[  548.150402][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  548.150402][   T73]      ip6_pol_route+0x56f/0x840
[  548.150402][   T73]      fib6_rule_lookup+0x456/0x630
[  548.150402][   T73]      ip6_route_input+0x59c/0xa50
[  548.150402][   T73]      ipv6_rcv+0x397/0x810
[  548.150402][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  548.150402][   T73]      process_backlog+0x101/0x620
[  548.150402][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  548.150402][   T73]      net_rx_action+0x495/0xbe0
[  548.150402][   T73]      __do_softirq+0x1b5/0x7f6
[  548.150402][   T73] 
[  548.152171][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  548.152171][   T73]      netdev_get_by_index+0x5e/0x80
[  548.152171][   T73]      fib6_nh_init+0x3d8/0x1580
[  548.152171][   T73]      ip6_route_info_create+0xf18/0x17d0
[  548.152171][   T73]      ip6_route_add+0x1c/0x140
[  548.152171][   T73]      addrconf_prefix_route+0x2a6/0x430
[  548.152171][   T73]      inet6_addr_add+0x4f8/0xa40
[  548.152171][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  548.152171][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  548.152171][   T73]      netlink_rcv_skb+0x130/0x360
[  548.152171][   T73]      netlink_unicast+0x449/0x710
[  548.152171][   T73]      netlink_sendmsg+0x723/0xbe0
[  548.152171][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  548.152171][   T73]      ___sys_sendmsg+0xee/0x170
[  548.152171][   T73]      __sys_sendmsg+0xcd/0x170
[  548.152171][   T73]      do_syscall_64+0xc6/0x1e0
[  548.152171][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  548.152171][   T73] 
[  548.154535][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  548.154535][   T73]      netdev_get_by_index+0x5e/0x80
[  548.154535][   T73]      fib6_nh_init+0x3d8/0x1580
[  548.154535][   T73]      ip6_route_info_create+0xf18/0x17d0
[  548.154535][   T73]      addrconf_f6i_alloc+0x315/0x560
[  548.154535][   T73]      ipv6_add_addr+0x411/0x2000
[  548.154535][   T73]      inet6_addr_add+0x30e/0xa40
[  548.154535][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  548.154535][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  548.154535][   T73]      netlink_rcv_skb+0x130/0x360
[  548.154535][   T73]      netlink_unicast+0x449/0x710
[  548.154535][   T73]      netlink_sendmsg+0x723/0xbe0
[  548.154535][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  548.154535][   T73]      ___sys_sendmsg+0xee/0x170
[  548.154535][   T73]      __sys_sendmsg+0xcd/0x170
[  548.154535][   T73]      do_syscall_64+0xc6/0x1e0
[  548.154535][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  548.154535][   T73] 
[  548.156722][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  548.156722][   T73]      netdev_get_by_index+0x5e/0x80
[  548.156722][   T73]      fib6_nh_init+0x3d8/0x1580
[  548.156722][   T73]      ip6_route_info_create+0xf18/0x17d0
[  548.156722][   T73]      ip6_route_add+0x1c/0x140
[  548.156722][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  548.156722][   T73]      addrconf_add_dev+0xe2/0x170
[  548.156722][   T73]      inet6_addr_add+0x12f/0xa40
[  548.156722][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  548.156722][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  548.156722][   T73]      netlink_rcv_skb+0x130/0x360
[  548.156722][   T73]      netlink_unicast+0x449/0x710
[  548.156722][   T73]      netlink_sendmsg+0x723/0xbe0
[  548.156722][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  548.156722][   T73]      ___sys_sendmsg+0xee/0x170
[  548.156722][   T73]      __sys_sendmsg+0xcd/0x170
[  548.156722][   T73]      do_syscall_64+0xc6/0x1e0
[  548.156722][   T73] 
[  548.158927][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  548.158927][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  548.158927][   T73]      ipv6_find_idev+0x102/0x170
[  548.158927][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  548.158927][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  548.158927][   T73]      netlink_rcv_skb+0x130/0x360
[  548.158927][   T73]      netlink_unicast+0x449/0x710
[  548.158927][   T73]      netlink_sendmsg+0x723/0xbe0
[  548.158927][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  548.158927][   T73]      ___sys_sendmsg+0xee/0x170
[  548.158927][   T73]      __sys_sendmsg+0xcd/0x170
[  548.158927][   T73]      do_syscall_64+0xc6/0x1e0
[  548.158927][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  548.158927][   T73] 
[  548.160706][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  548.160706][   T73]      neigh_parms_alloc+0x1e5/0x510
[  548.160706][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  548.160706][   T73]      ipv6_find_idev+0x102/0x170
[  548.160706][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  548.160706][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  548.160706][   T73]      netlink_rcv_skb+0x130/0x360
[  548.160706][   T73]      netlink_unicast+0x449/0x710
[  548.160706][   T73]      netlink_sendmsg+0x723/0xbe0
[  548.160706][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  548.160706][   T73]      ___sys_sendmsg+0xee/0x170
[  548.160706][   T73]      __sys_sendmsg+0xcd/0x170
[  548.160706][   T73]      do_syscall_64+0xc6/0x1e0
[  548.160706][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  548.160706][   T73] 
[  548.162741][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  548.163050][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  548.163050][   T73]      netdev_get_by_index+0x5e/0x80
[  548.163050][   T73]      fib6_nh_init+0x3d8/0x1580
[  548.163050][   T73]      ip6_route_info_create+0xf18/0x17d0
[  548.163050][   T73]      addrconf_f6i_alloc+0x265/0x560
[  548.163050][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  548.163050][   T73]      addrconf_join_anycast+0x1c0/0x220
[  548.163050][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  548.163050][   T73]      addrconf_dad_completed+0x12b/0xe20
[  548.163050][   T73]      addrconf_dad_begin+0x310/0x670
[  548.163050][   T73]      addrconf_dad_work+0x10b/0xab0
[  548.163050][   T73]      process_one_work+0x84d/0x18a0
[  548.163050][   T73]      worker_thread+0x587/0xd30
[  548.163050][   T73]      kthread+0x28a/0x350
[  548.163050][   T73]      ret_from_fork+0x31/0x70
[  548.163050][   T73]      ret_from_fork_asm+0x1a/0x30
[  548.163050][   T73] 
[  548.165537][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  548.165537][   T73]      netdev_get_by_index+0x5e/0x80
[  548.165537][   T73]      fib6_nh_init+0x3d8/0x1580
[  548.165537][   T73]      ip6_route_info_create+0xf18/0x17d0
[  548.165537][   T73]      ip6_route_add+0x1c/0x140
[  548.165537][   T73]      addrconf_prefix_route+0x2a6/0x430
[  548.165537][   T73]      inet6_addr_add+0x4f8/0xa40
[  548.165537][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  548.165537][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  548.165537][   T73]      netlink_rcv_skb+0x130/0x360
[  548.165537][   T73]      netlink_unicast+0x449/0x710
[  548.165537][   T73]      netlink_sendmsg+0x723/0xbe0
[  548.165537][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  548.165537][   T73]      ___sys_sendmsg+0xee/0x170
[  548.165537][   T73]      __sys_sendmsg+0xcd/0x170
[  548.165537][   T73]      do_syscall_64+0xc6/0x1e0
[  548.165537][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  548.165537][   T73] 
[  548.168069][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  548.168069][   T73]      netdev_get_by_index+0x5e/0x80
[  548.168069][   T73]      fib6_nh_init+0x3d8/0x1580
[  548.168069][   T73]      ip6_route_info_create+0xf18/0x17d0
[  548.168069][   T73]      addrconf_f6i_alloc+0x315/0x560
[  548.168069][   T73]      ipv6_add_addr+0x411/0x2000
[  548.168069][   T73]      inet6_addr_add+0x30e/0xa40
[  548.168069][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  548.168069][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  548.168069][   T73]      netlink_rcv_skb+0x130/0x360
[  548.168069][   T73]      netlink_unicast+0x449/0x710
[  548.168069][   T73]      netlink_sendmsg+0x723/0xbe0
[  548.168069][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  548.168069][   T73]      ___sys_sendmsg+0xee/0x170
[  548.168069][   T73]      __sys_sendmsg+0xcd/0x170
[  548.168069][   T73]      do_syscall_64+0xc6/0x1e0
[  548.168069][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  548.168069][   T73] 
[  548.170595][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  548.170595][   T73]      netdev_get_by_index+0x5e/0x80
[  548.170595][   T73]      fib6_nh_init+0x3d8/0x1580
[  548.170595][   T73]      ip6_route_info_create+0xf18/0x17d0
[  548.170595][   T73]      ip6_route_add+0x1c/0x140
[  548.170595][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  548.170595][   T73]      addrconf_add_dev+0xe2/0x170
[  548.170595][   T73]      inet6_addr_add+0x12f/0xa40
[  548.170595][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  548.170595][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  548.170595][   T73]      netlink_rcv_skb+0x130/0x360
[  548.170595][   T73]      netlink_unicast+0x449/0x710
[  548.170595][   T73]      netlink_sendmsg+0x723/0xbe0
[  548.170595][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  548.170595][   T73]      ___sys_sendmsg+0xee/0x170
[  548.170595][   T73]      __sys_sendmsg+0xcd/0x170
[  548.170595][   T73]      do_syscall_64+0xc6/0x1e0
[  548.170595][   T73] 
[  548.173150][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  548.173150][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  548.173150][   T73]      ipv6_find_idev+0x102/0x170
[  548.173150][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  548.173150][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  548.173150][   T73]      netlink_rcv_skb+0x130/0x360
[  548.173150][   T73]      netlink_unicast+0x449/0x710
[  548.173150][   T73]      netlink_sendmsg+0x723/0xbe0
[  548.173150][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  548.173150][   T73]      ___sys_sendmsg+0xee/0x170
[  548.173150][   T73]      __sys_sendmsg+0xcd/0x170
[  548.173150][   T73]      do_syscall_64+0xc6/0x1e0
[  548.173150][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  548.173150][   T73] 
[  548.175131][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  548.175131][   T73]      neigh_parms_alloc+0x1e5/0x510
[  548.175131][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  548.175131][   T73]      ipv6_find_idev+0x102/0x170
[  548.175131][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  548.175131][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  548.175131][   T73]      netlink_rcv_skb+0x130/0x360
[  548.175131][   T73]      netlink_unicast+0x449/0x710
[  548.175131][   T73]      netlink_sendmsg+0x723/0xbe0
[  548.175131][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  548.175131][   T73]      ___sys_sendmsg+0xee/0x170
[  548.175131][   T73]      __sys_sendmsg+0xcd/0x170
[  548.175131][   T73]      do_syscall_64+0xc6/0x1e0
[  548.175131][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  548.175131][   T73] 
[  558.263832][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  558.264479][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  558.264479][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  558.264479][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  558.264479][   T73]      fib6_nh_init+0xa22/0x1580
[  558.264479][   T73]      ip6_route_info_create+0xf18/0x17d0
[  558.264479][   T73]      ip6_route_add+0x1c/0x140
[  558.264479][   T73]      inet6_rtm_newroute+0x104/0x110
[  558.264479][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  558.264479][   T73]      netlink_rcv_skb+0x130/0x360
[  558.264479][   T73]      netlink_unicast+0x449/0x710
[  558.264479][   T73]      netlink_sendmsg+0x723/0xbe0
[  558.264479][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  558.264479][   T73]      ___sys_sendmsg+0xee/0x170
[  558.264479][   T73]      __sys_sendmsg+0xcd/0x170
[  558.264479][   T73]      do_syscall_64+0xc6/0x1e0
[  558.264479][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  558.264479][   T73] 
[  558.267612][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  558.267612][   T73]      dst_init+0x84/0x4a0
[  558.267612][   T73]      dst_alloc+0x97/0x150
[  558.267612][   T73]      ip6_dst_alloc+0x23/0x90
[  558.267612][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  558.267612][   T73]      ip6_pol_route+0x56f/0x840
[  558.267612][   T73]      fib6_rule_lookup+0x456/0x630
[  558.267612][   T73]      ip6_route_input+0x59c/0xa50
[  558.267612][   T73]      ipv6_rcv+0x397/0x810
[  558.267612][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  558.267612][   T73]      process_backlog+0x101/0x620
[  558.267612][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  558.267612][   T73]      net_rx_action+0x495/0xbe0
[  558.267612][   T73]      __do_softirq+0x1b5/0x7f6
[  558.267612][   T73] 
[  558.270365][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  558.270365][   T73]      netdev_get_by_index+0x5e/0x80
[  558.270365][   T73]      fib6_nh_init+0x3d8/0x1580
[  558.270365][   T73]      ip6_route_info_create+0xf18/0x17d0
[  558.270365][   T73]      ip6_route_add+0x1c/0x140
[  558.270365][   T73]      addrconf_prefix_route+0x2a6/0x430
[  558.270365][   T73]      inet6_addr_add+0x4f8/0xa40
[  558.270365][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  558.270365][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  558.270365][   T73]      netlink_rcv_skb+0x130/0x360
[  558.270365][   T73]      netlink_unicast+0x449/0x710
[  558.270365][   T73]      netlink_sendmsg+0x723/0xbe0
[  558.270365][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  558.270365][   T73]      ___sys_sendmsg+0xee/0x170
[  558.270365][   T73]      __sys_sendmsg+0xcd/0x170
[  558.270365][   T73]      do_syscall_64+0xc6/0x1e0
[  558.270365][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  558.270365][   T73] 
[  558.273691][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  558.273691][   T73]      netdev_get_by_index+0x5e/0x80
[  558.273691][   T73]      fib6_nh_init+0x3d8/0x1580
[  558.273691][   T73]      ip6_route_info_create+0xf18/0x17d0
[  558.273691][   T73]      addrconf_f6i_alloc+0x315/0x560
[  558.273691][   T73]      ipv6_add_addr+0x411/0x2000
[  558.273691][   T73]      inet6_addr_add+0x30e/0xa40
[  558.273691][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  558.273691][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  558.273691][   T73]      netlink_rcv_skb+0x130/0x360
[  558.273691][   T73]      netlink_unicast+0x449/0x710
[  558.273691][   T73]      netlink_sendmsg+0x723/0xbe0
[  558.273691][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  558.273691][   T73]      ___sys_sendmsg+0xee/0x170
[  558.273691][   T73]      __sys_sendmsg+0xcd/0x170
[  558.273691][   T73]      do_syscall_64+0xc6/0x1e0
[  558.273691][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  558.273691][   T73] 
[  558.277004][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  558.277004][   T73]      netdev_get_by_index+0x5e/0x80
[  558.277004][   T73]      fib6_nh_init+0x3d8/0x1580
[  558.277004][   T73]      ip6_route_info_create+0xf18/0x17d0
[  558.277004][   T73]      ip6_route_add+0x1c/0x140
[  558.277004][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  558.277004][   T73]      addrconf_add_dev+0xe2/0x170
[  558.277004][   T73]      inet6_addr_add+0x12f/0xa40
[  558.277004][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  558.277004][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  558.277004][   T73]      netlink_rcv_skb+0x130/0x360
[  558.277004][   T73]      netlink_unicast+0x449/0x710
[  558.277004][   T73]      netlink_sendmsg+0x723/0xbe0
[  558.277004][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  558.277004][   T73]      ___sys_sendmsg+0xee/0x170
[  558.277004][   T73]      __sys_sendmsg+0xcd/0x170
[  558.277004][   T73]      do_syscall_64+0xc6/0x1e0
[  558.277004][   T73] 
[  558.280105][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  558.280105][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  558.280105][   T73]      ipv6_find_idev+0x102/0x170
[  558.280105][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  558.280105][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  558.280105][   T73]      netlink_rcv_skb+0x130/0x360
[  558.280105][   T73]      netlink_unicast+0x449/0x710
[  558.280105][   T73]      netlink_sendmsg+0x723/0xbe0
[  558.280105][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  558.280105][   T73]      ___sys_sendmsg+0xee/0x170
[  558.280105][   T73]      __sys_sendmsg+0xcd/0x170
[  558.280105][   T73]      do_syscall_64+0xc6/0x1e0
[  558.280105][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  558.280105][   T73] 
[  558.282504][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  558.282504][   T73]      neigh_parms_alloc+0x1e5/0x510
[  558.282504][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  558.282504][   T73]      ipv6_find_idev+0x102/0x170
[  558.282504][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  558.282504][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  558.282504][   T73]      netlink_rcv_skb+0x130/0x360
[  558.282504][   T73]      netlink_unicast+0x449/0x710
[  558.282504][   T73]      netlink_sendmsg+0x723/0xbe0
[  558.282504][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  558.282504][   T73]      ___sys_sendmsg+0xee/0x170
[  558.282504][   T73]      __sys_sendmsg+0xcd/0x170
[  558.282504][   T73]      do_syscall_64+0xc6/0x1e0
[  558.282504][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  558.282504][   T73] 
[  558.285275][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  558.285708][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  558.285708][   T73]      netdev_get_by_index+0x5e/0x80
[  558.285708][   T73]      fib6_nh_init+0x3d8/0x1580
[  558.285708][   T73]      ip6_route_info_create+0xf18/0x17d0
[  558.285708][   T73]      addrconf_f6i_alloc+0x265/0x560
[  558.285708][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  558.285708][   T73]      addrconf_join_anycast+0x1c0/0x220
[  558.285708][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  558.285708][   T73]      addrconf_dad_completed+0x12b/0xe20
[  558.285708][   T73]      addrconf_dad_begin+0x310/0x670
[  558.285708][   T73]      addrconf_dad_work+0x10b/0xab0
[  558.285708][   T73]      process_one_work+0x84d/0x18a0
[  558.285708][   T73]      worker_thread+0x587/0xd30
[  558.285708][   T73]      kthread+0x28a/0x350
[  558.285708][   T73]      ret_from_fork+0x31/0x70
[  558.285708][   T73]      ret_from_fork_asm+0x1a/0x30
[  558.285708][   T73] 
[  558.288703][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  558.288703][   T73]      netdev_get_by_index+0x5e/0x80
[  558.288703][   T73]      fib6_nh_init+0x3d8/0x1580
[  558.288703][   T73]      ip6_route_info_create+0xf18/0x17d0
[  558.288703][   T73]      ip6_route_add+0x1c/0x140
[  558.288703][   T73]      addrconf_prefix_route+0x2a6/0x430
[  558.288703][   T73]      inet6_addr_add+0x4f8/0xa40
[  558.288703][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  558.288703][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  558.288703][   T73]      netlink_rcv_skb+0x130/0x360
[  558.288703][   T73]      netlink_unicast+0x449/0x710
[  558.288703][   T73]      netlink_sendmsg+0x723/0xbe0
[  558.288703][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  558.288703][   T73]      ___sys_sendmsg+0xee/0x170
[  558.288703][   T73]      __sys_sendmsg+0xcd/0x170
[  558.288703][   T73]      do_syscall_64+0xc6/0x1e0
[  558.288703][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  558.288703][   T73] 
[  558.291844][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  558.291844][   T73]      netdev_get_by_index+0x5e/0x80
[  558.291844][   T73]      fib6_nh_init+0x3d8/0x1580
[  558.291844][   T73]      ip6_route_info_create+0xf18/0x17d0
[  558.291844][   T73]      addrconf_f6i_alloc+0x315/0x560
[  558.291844][   T73]      ipv6_add_addr+0x411/0x2000
[  558.291844][   T73]      inet6_addr_add+0x30e/0xa40
[  558.291844][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  558.291844][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  558.291844][   T73]      netlink_rcv_skb+0x130/0x360
[  558.291844][   T73]      netlink_unicast+0x449/0x710
[  558.291844][   T73]      netlink_sendmsg+0x723/0xbe0
[  558.291844][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  558.291844][   T73]      ___sys_sendmsg+0xee/0x170
[  558.291844][   T73]      __sys_sendmsg+0xcd/0x170
[  558.291844][   T73]      do_syscall_64+0xc6/0x1e0
[  558.291844][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  558.291844][   T73] 
[  558.294898][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  558.294898][   T73]      netdev_get_by_index+0x5e/0x80
[  558.294898][   T73]      fib6_nh_init+0x3d8/0x1580
[  558.294898][   T73]      ip6_route_info_create+0xf18/0x17d0
[  558.294898][   T73]      ip6_route_add+0x1c/0x140
[  558.294898][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  558.294898][   T73]      addrconf_add_dev+0xe2/0x170
[  558.294898][   T73]      inet6_addr_add+0x12f/0xa40
[  558.294898][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  558.294898][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  558.294898][   T73]      netlink_rcv_skb+0x130/0x360
[  558.294898][   T73]      netlink_unicast+0x449/0x710
[  558.294898][   T73]      netlink_sendmsg+0x723/0xbe0
[  558.294898][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  558.294898][   T73]      ___sys_sendmsg+0xee/0x170
[  558.294898][   T73]      __sys_sendmsg+0xcd/0x170
[  558.294898][   T73]      do_syscall_64+0xc6/0x1e0
[  558.294898][   T73] 
[  558.297894][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  558.297894][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  558.297894][   T73]      ipv6_find_idev+0x102/0x170
[  558.297894][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  558.297894][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  558.297894][   T73]      netlink_rcv_skb+0x130/0x360
[  558.297894][   T73]      netlink_unicast+0x449/0x710
[  558.297894][   T73]      netlink_sendmsg+0x723/0xbe0
[  558.297894][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  558.297894][   T73]      ___sys_sendmsg+0xee/0x170
[  558.297894][   T73]      __sys_sendmsg+0xcd/0x170
[  558.297894][   T73]      do_syscall_64+0xc6/0x1e0
[  558.297894][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  558.297894][   T73] 
[  558.299547][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  558.299547][   T73]      neigh_parms_alloc+0x1e5/0x510
[  558.299547][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  558.299547][   T73]      ipv6_find_idev+0x102/0x170
[  558.299547][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  558.299547][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  558.299547][   T73]      netlink_rcv_skb+0x130/0x360
[  558.299547][   T73]      netlink_unicast+0x449/0x710
[  558.299547][   T73]      netlink_sendmsg+0x723/0xbe0
[  558.299547][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  558.299547][   T73]      ___sys_sendmsg+0xee/0x170
[  558.299547][   T73]      __sys_sendmsg+0xcd/0x170
[  558.299547][   T73]      do_syscall_64+0xc6/0x1e0
[  558.299547][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  558.299547][   T73] 
[  558.301671][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  558.301972][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  558.301972][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  558.301972][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  558.301972][   T73]      fib6_nh_init+0xa22/0x1580
[  558.301972][   T73]      ip6_route_info_create+0xf18/0x17d0
[  558.301972][   T73]      ip6_route_add+0x1c/0x140
[  558.301972][   T73]      inet6_rtm_newroute+0x104/0x110
[  558.301972][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  558.301972][   T73]      netlink_rcv_skb+0x130/0x360
[  558.301972][   T73]      netlink_unicast+0x449/0x710
[  558.301972][   T73]      netlink_sendmsg+0x723/0xbe0
[  558.301972][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  558.301972][   T73]      ___sys_sendmsg+0xee/0x170
[  558.301972][   T73]      __sys_sendmsg+0xcd/0x170
[  558.301972][   T73]      do_syscall_64+0xc6/0x1e0
[  558.301972][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  558.301972][   T73] 
[  558.304043][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  558.304043][   T73]      dst_init+0x84/0x4a0
[  558.304043][   T73]      dst_alloc+0x97/0x150
[  558.304043][   T73]      ip6_dst_alloc+0x23/0x90
[  558.304043][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  558.304043][   T73]      ip6_pol_route+0x56f/0x840
[  558.304043][   T73]      fib6_rule_lookup+0x456/0x630
[  558.304043][   T73]      ip6_route_input+0x59c/0xa50
[  558.304043][   T73]      ipv6_rcv+0x397/0x810
[  558.304043][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  558.304043][   T73]      process_backlog+0x101/0x620
[  558.304043][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  558.304043][   T73]      net_rx_action+0x495/0xbe0
[  558.304043][   T73]      __do_softirq+0x1b5/0x7f6
[  558.304043][   T73] 
[  558.305937][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  558.305937][   T73]      netdev_get_by_index+0x5e/0x80
[  558.305937][   T73]      fib6_nh_init+0x3d8/0x1580
[  558.305937][   T73]      ip6_route_info_create+0xf18/0x17d0
[  558.305937][   T73]      ip6_route_add+0x1c/0x140
[  558.305937][   T73]      addrconf_prefix_route+0x2a6/0x430
[  558.305937][   T73]      inet6_addr_add+0x4f8/0xa40
[  558.305937][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  558.305937][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  558.305937][   T73]      netlink_rcv_skb+0x130/0x360
[  558.305937][   T73]      netlink_unicast+0x449/0x710
[  558.305937][   T73]      netlink_sendmsg+0x723/0xbe0
[  558.305937][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  558.305937][   T73]      ___sys_sendmsg+0xee/0x170
[  558.305937][   T73]      __sys_sendmsg+0xcd/0x170
[  558.305937][   T73]      do_syscall_64+0xc6/0x1e0
[  558.305937][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  558.305937][   T73] 
[  558.308136][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  558.308136][   T73]      netdev_get_by_index+0x5e/0x80
[  558.308136][   T73]      fib6_nh_init+0x3d8/0x1580
[  558.308136][   T73]      ip6_route_info_create+0xf18/0x17d0
[  558.308136][   T73]      addrconf_f6i_alloc+0x315/0x560
[  558.308136][   T73]      ipv6_add_addr+0x411/0x2000
[  558.308136][   T73]      inet6_addr_add+0x30e/0xa40
[  558.308136][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  558.308136][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  558.308136][   T73]      netlink_rcv_skb+0x130/0x360
[  558.308136][   T73]      netlink_unicast+0x449/0x710
[  558.308136][   T73]      netlink_sendmsg+0x723/0xbe0
[  558.308136][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  558.308136][   T73]      ___sys_sendmsg+0xee/0x170
[  558.308136][   T73]      __sys_sendmsg+0xcd/0x170
[  558.308136][   T73]      do_syscall_64+0xc6/0x1e0
[  558.308136][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  558.308136][   T73] 
[  558.310674][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  558.310674][   T73]      netdev_get_by_index+0x5e/0x80
[  558.310674][   T73]      fib6_nh_init+0x3d8/0x1580
[  558.310674][   T73]      ip6_route_info_create+0xf18/0x17d0
[  558.310674][   T73]      ip6_route_add+0x1c/0x140
[  558.310674][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  558.310674][   T73]      addrconf_add_dev+0xe2/0x170
[  558.310674][   T73]      inet6_addr_add+0x12f/0xa40
[  558.310674][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  558.310674][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  558.310674][   T73]      netlink_rcv_skb+0x130/0x360
[  558.310674][   T73]      netlink_unicast+0x449/0x710
[  558.310674][   T73]      netlink_sendmsg+0x723/0xbe0
[  558.310674][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  558.310674][   T73]      ___sys_sendmsg+0xee/0x170
[  558.310674][   T73]      __sys_sendmsg+0xcd/0x170
[  558.310674][   T73]      do_syscall_64+0xc6/0x1e0
[  558.310674][   T73] 
[  558.312846][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  558.312846][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  558.312846][   T73]      ipv6_find_idev+0x102/0x170
[  558.312846][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  558.312846][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  558.312846][   T73]      netlink_rcv_skb+0x130/0x360
[  558.312846][   T73]      netlink_unicast+0x449/0x710
[  558.312846][   T73]      netlink_sendmsg+0x723/0xbe0
[  558.312846][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  558.312846][   T73]      ___sys_sendmsg+0xee/0x170
[  558.312846][   T73]      __sys_sendmsg+0xcd/0x170
[  558.312846][   T73]      do_syscall_64+0xc6/0x1e0
[  558.312846][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  558.312846][   T73] 
[  558.314936][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  558.314936][   T73]      neigh_parms_alloc+0x1e5/0x510
[  558.314936][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  558.314936][   T73]      ipv6_find_idev+0x102/0x170
[  558.314936][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  558.314936][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  558.314936][   T73]      netlink_rcv_skb+0x130/0x360
[  558.314936][   T73]      netlink_unicast+0x449/0x710
[  558.314936][   T73]      netlink_sendmsg+0x723/0xbe0
[  558.314936][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  558.314936][   T73]      ___sys_sendmsg+0xee/0x170
[  558.314936][   T73]      __sys_sendmsg+0xcd/0x170
[  558.314936][   T73]      do_syscall_64+0xc6/0x1e0
[  558.314936][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  558.314936][   T73] 
[  558.317712][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  558.318261][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  558.318261][   T73]      netdev_get_by_index+0x5e/0x80
[  558.318261][   T73]      fib6_nh_init+0x3d8/0x1580
[  558.318261][   T73]      ip6_route_info_create+0xf18/0x17d0
[  558.318261][   T73]      addrconf_f6i_alloc+0x265/0x560
[  558.318261][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  558.318261][   T73]      addrconf_join_anycast+0x1c0/0x220
[  558.318261][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  558.318261][   T73]      addrconf_dad_completed+0x12b/0xe20
[  558.318261][   T73]      addrconf_dad_begin+0x310/0x670
[  558.318261][   T73]      addrconf_dad_work+0x10b/0xab0
[  558.318261][   T73]      process_one_work+0x84d/0x18a0
[  558.318261][   T73]      worker_thread+0x587/0xd30
[  558.318261][   T73]      kthread+0x28a/0x350
[  558.318261][   T73]      ret_from_fork+0x31/0x70
[  558.318261][   T73]      ret_from_fork_asm+0x1a/0x30
[  558.318261][   T73] 
[  558.321634][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  558.321634][   T73]      netdev_get_by_index+0x5e/0x80
[  558.321634][   T73]      fib6_nh_init+0x3d8/0x1580
[  558.321634][   T73]      ip6_route_info_create+0xf18/0x17d0
[  558.321634][   T73]      ip6_route_add+0x1c/0x140
[  558.321634][   T73]      addrconf_prefix_route+0x2a6/0x430
[  558.321634][   T73]      inet6_addr_add+0x4f8/0xa40
[  558.321634][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  558.321634][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  558.321634][   T73]      netlink_rcv_skb+0x130/0x360
[  558.321634][   T73]      netlink_unicast+0x449/0x710
[  558.321634][   T73]      netlink_sendmsg+0x723/0xbe0
[  558.321634][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  558.321634][   T73]      ___sys_sendmsg+0xee/0x170
[  558.321634][   T73]      __sys_sendmsg+0xcd/0x170
[  558.321634][   T73]      do_syscall_64+0xc6/0x1e0
[  558.321634][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  558.321634][   T73] 
[  558.325227][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  558.325227][   T73]      netdev_get_by_index+0x5e/0x80
[  558.325227][   T73]      fib6_nh_init+0x3d8/0x1580
[  558.325227][   T73]      ip6_route_info_create+0xf18/0x17d0
[  558.325227][   T73]      addrconf_f6i_alloc+0x315/0x560
[  558.325227][   T73]      ipv6_add_addr+0x411/0x2000
[  558.325227][   T73]      inet6_addr_add+0x30e/0xa40
[  558.325227][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  558.325227][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  558.325227][   T73]      netlink_rcv_skb+0x130/0x360
[  558.325227][   T73]      netlink_unicast+0x449/0x710
[  558.325227][   T73]      netlink_sendmsg+0x723/0xbe0
[  558.325227][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  558.325227][   T73]      ___sys_sendmsg+0xee/0x170
[  558.325227][   T73]      __sys_sendmsg+0xcd/0x170
[  558.325227][   T73]      do_syscall_64+0xc6/0x1e0
[  558.325227][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  558.325227][   T73] 
[  558.329792][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  558.329792][   T73]      netdev_get_by_index+0x5e/0x80
[  558.329792][   T73]      fib6_nh_init+0x3d8/0x1580
[  558.329792][   T73]      ip6_route_info_create+0xf18/0x17d0
[  558.329792][   T73]      ip6_route_add+0x1c/0x140
[  558.329792][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  558.329792][   T73]      addrconf_add_dev+0xe2/0x170
[  558.329792][   T73]      inet6_addr_add+0x12f/0xa40
[  558.329792][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  558.329792][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  558.329792][   T73]      netlink_rcv_skb+0x130/0x360
[  558.329792][   T73]      netlink_unicast+0x449/0x710
[  558.329792][   T73]      netlink_sendmsg+0x723/0xbe0
[  558.329792][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  558.329792][   T73]      ___sys_sendmsg+0xee/0x170
[  558.329792][   T73]      __sys_sendmsg+0xcd/0x170
[  558.329792][   T73]      do_syscall_64+0xc6/0x1e0
[  558.329792][   T73] 
[  558.332883][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  558.332883][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  558.332883][   T73]      ipv6_find_idev+0x102/0x170
[  558.332883][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  558.332883][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  558.332883][   T73]      netlink_rcv_skb+0x130/0x360
[  558.332883][   T73]      netlink_unicast+0x449/0x710
[  558.332883][   T73]      netlink_sendmsg+0x723/0xbe0
[  558.332883][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  558.332883][   T73]      ___sys_sendmsg+0xee/0x170
[  558.332883][   T73]      __sys_sendmsg+0xcd/0x170
[  558.332883][   T73]      do_syscall_64+0xc6/0x1e0
[  558.332883][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  558.332883][   T73] 
[  558.334688][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  558.334688][   T73]      neigh_parms_alloc+0x1e5/0x510
[  558.334688][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  558.334688][   T73]      ipv6_find_idev+0x102/0x170
[  558.334688][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  558.334688][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  558.334688][   T73]      netlink_rcv_skb+0x130/0x360
[  558.334688][   T73]      netlink_unicast+0x449/0x710
[  558.334688][   T73]      netlink_sendmsg+0x723/0xbe0
[  558.334688][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  558.334688][   T73]      ___sys_sendmsg+0xee/0x170
[  558.334688][   T73]      __sys_sendmsg+0xcd/0x170
[  558.334688][   T73]      do_syscall_64+0xc6/0x1e0
[  558.334688][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  558.334688][   T73] 
[  568.471765][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  568.472412][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  568.472412][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  568.472412][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  568.472412][   T73]      fib6_nh_init+0xa22/0x1580
[  568.472412][   T73]      ip6_route_info_create+0xf18/0x17d0
[  568.472412][   T73]      ip6_route_add+0x1c/0x140
[  568.472412][   T73]      inet6_rtm_newroute+0x104/0x110
[  568.472412][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  568.472412][   T73]      netlink_rcv_skb+0x130/0x360
[  568.472412][   T73]      netlink_unicast+0x449/0x710
[  568.472412][   T73]      netlink_sendmsg+0x723/0xbe0
[  568.472412][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  568.472412][   T73]      ___sys_sendmsg+0xee/0x170
[  568.472412][   T73]      __sys_sendmsg+0xcd/0x170
[  568.472412][   T73]      do_syscall_64+0xc6/0x1e0
[  568.472412][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  568.472412][   T73] 
[  568.475381][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  568.475381][   T73]      dst_init+0x84/0x4a0
[  568.475381][   T73]      dst_alloc+0x97/0x150
[  568.475381][   T73]      ip6_dst_alloc+0x23/0x90
[  568.475381][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  568.475381][   T73]      ip6_pol_route+0x56f/0x840
[  568.475381][   T73]      fib6_rule_lookup+0x456/0x630
[  568.475381][   T73]      ip6_route_input+0x59c/0xa50
[  568.475381][   T73]      ipv6_rcv+0x397/0x810
[  568.475381][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  568.475381][   T73]      process_backlog+0x101/0x620
[  568.475381][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  568.475381][   T73]      net_rx_action+0x495/0xbe0
[  568.475381][   T73]      __do_softirq+0x1b5/0x7f6
[  568.475381][   T73] 
[  568.477947][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  568.477947][   T73]      netdev_get_by_index+0x5e/0x80
[  568.477947][   T73]      fib6_nh_init+0x3d8/0x1580
[  568.477947][   T73]      ip6_route_info_create+0xf18/0x17d0
[  568.477947][   T73]      ip6_route_add+0x1c/0x140
[  568.477947][   T73]      addrconf_prefix_route+0x2a6/0x430
[  568.477947][   T73]      inet6_addr_add+0x4f8/0xa40
[  568.477947][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  568.477947][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  568.477947][   T73]      netlink_rcv_skb+0x130/0x360
[  568.477947][   T73]      netlink_unicast+0x449/0x710
[  568.477947][   T73]      netlink_sendmsg+0x723/0xbe0
[  568.477947][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  568.477947][   T73]      ___sys_sendmsg+0xee/0x170
[  568.477947][   T73]      __sys_sendmsg+0xcd/0x170
[  568.477947][   T73]      do_syscall_64+0xc6/0x1e0
[  568.477947][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  568.477947][   T73] 
[  568.481099][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  568.481099][   T73]      netdev_get_by_index+0x5e/0x80
[  568.481099][   T73]      fib6_nh_init+0x3d8/0x1580
[  568.481099][   T73]      ip6_route_info_create+0xf18/0x17d0
[  568.481099][   T73]      addrconf_f6i_alloc+0x315/0x560
[  568.481099][   T73]      ipv6_add_addr+0x411/0x2000
[  568.481099][   T73]      inet6_addr_add+0x30e/0xa40
[  568.481099][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  568.481099][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  568.481099][   T73]      netlink_rcv_skb+0x130/0x360
[  568.481099][   T73]      netlink_unicast+0x449/0x710
[  568.481099][   T73]      netlink_sendmsg+0x723/0xbe0
[  568.481099][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  568.481099][   T73]      ___sys_sendmsg+0xee/0x170
[  568.481099][   T73]      __sys_sendmsg+0xcd/0x170
[  568.481099][   T73]      do_syscall_64+0xc6/0x1e0
[  568.481099][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  568.481099][   T73] 
[  568.484129][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  568.484129][   T73]      netdev_get_by_index+0x5e/0x80
[  568.484129][   T73]      fib6_nh_init+0x3d8/0x1580
[  568.484129][   T73]      ip6_route_info_create+0xf18/0x17d0
[  568.484129][   T73]      ip6_route_add+0x1c/0x140
[  568.484129][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  568.484129][   T73]      addrconf_add_dev+0xe2/0x170
[  568.484129][   T73]      inet6_addr_add+0x12f/0xa40
[  568.484129][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  568.484129][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  568.484129][   T73]      netlink_rcv_skb+0x130/0x360
[  568.484129][   T73]      netlink_unicast+0x449/0x710
[  568.484129][   T73]      netlink_sendmsg+0x723/0xbe0
[  568.484129][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  568.484129][   T73]      ___sys_sendmsg+0xee/0x170
[  568.484129][   T73]      __sys_sendmsg+0xcd/0x170
[  568.484129][   T73]      do_syscall_64+0xc6/0x1e0
[  568.484129][   T73] 
[  568.487000][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  568.487000][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  568.487000][   T73]      ipv6_find_idev+0x102/0x170
[  568.487000][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  568.487000][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  568.487000][   T73]      netlink_rcv_skb+0x130/0x360
[  568.487000][   T73]      netlink_unicast+0x449/0x710
[  568.487000][   T73]      netlink_sendmsg+0x723/0xbe0
[  568.487000][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  568.487000][   T73]      ___sys_sendmsg+0xee/0x170
[  568.487000][   T73]      __sys_sendmsg+0xcd/0x170
[  568.487000][   T73]      do_syscall_64+0xc6/0x1e0
[  568.487000][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  568.487000][   T73] 
[  568.489397][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  568.489397][   T73]      neigh_parms_alloc+0x1e5/0x510
[  568.489397][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  568.489397][   T73]      ipv6_find_idev+0x102/0x170
[  568.489397][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  568.489397][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  568.489397][   T73]      netlink_rcv_skb+0x130/0x360
[  568.489397][   T73]      netlink_unicast+0x449/0x710
[  568.489397][   T73]      netlink_sendmsg+0x723/0xbe0
[  568.489397][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  568.489397][   T73]      ___sys_sendmsg+0xee/0x170
[  568.489397][   T73]      __sys_sendmsg+0xcd/0x170
[  568.489397][   T73]      do_syscall_64+0xc6/0x1e0
[  568.489397][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  568.489397][   T73] 
[  568.491955][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  568.492474][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  568.492474][   T73]      netdev_get_by_index+0x5e/0x80
[  568.492474][   T73]      fib6_nh_init+0x3d8/0x1580
[  568.492474][   T73]      ip6_route_info_create+0xf18/0x17d0
[  568.492474][   T73]      addrconf_f6i_alloc+0x265/0x560
[  568.492474][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  568.492474][   T73]      addrconf_join_anycast+0x1c0/0x220
[  568.492474][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  568.492474][   T73]      addrconf_dad_completed+0x12b/0xe20
[  568.492474][   T73]      addrconf_dad_begin+0x310/0x670
[  568.492474][   T73]      addrconf_dad_work+0x10b/0xab0
[  568.492474][   T73]      process_one_work+0x84d/0x18a0
[  568.492474][   T73]      worker_thread+0x587/0xd30
[  568.492474][   T73]      kthread+0x28a/0x350
[  568.492474][   T73]      ret_from_fork+0x31/0x70
[  568.492474][   T73]      ret_from_fork_asm+0x1a/0x30
[  568.492474][   T73] 
[  568.495461][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  568.495461][   T73]      netdev_get_by_index+0x5e/0x80
[  568.495461][   T73]      fib6_nh_init+0x3d8/0x1580
[  568.495461][   T73]      ip6_route_info_create+0xf18/0x17d0
[  568.495461][   T73]      ip6_route_add+0x1c/0x140
[  568.495461][   T73]      addrconf_prefix_route+0x2a6/0x430
[  568.495461][   T73]      inet6_addr_add+0x4f8/0xa40
[  568.495461][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  568.495461][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  568.495461][   T73]      netlink_rcv_skb+0x130/0x360
[  568.495461][   T73]      netlink_unicast+0x449/0x710
[  568.495461][   T73]      netlink_sendmsg+0x723/0xbe0
[  568.495461][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  568.495461][   T73]      ___sys_sendmsg+0xee/0x170
[  568.495461][   T73]      __sys_sendmsg+0xcd/0x170
[  568.495461][   T73]      do_syscall_64+0xc6/0x1e0
[  568.495461][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  568.495461][   T73] 
[  568.498374][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  568.498374][   T73]      netdev_get_by_index+0x5e/0x80
[  568.498374][   T73]      fib6_nh_init+0x3d8/0x1580
[  568.498374][   T73]      ip6_route_info_create+0xf18/0x17d0
[  568.498374][   T73]      addrconf_f6i_alloc+0x315/0x560
[  568.498374][   T73]      ipv6_add_addr+0x411/0x2000
[  568.498374][   T73]      inet6_addr_add+0x30e/0xa40
[  568.498374][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  568.498374][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  568.498374][   T73]      netlink_rcv_skb+0x130/0x360
[  568.498374][   T73]      netlink_unicast+0x449/0x710
[  568.498374][   T73]      netlink_sendmsg+0x723/0xbe0
[  568.498374][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  568.498374][   T73]      ___sys_sendmsg+0xee/0x170
[  568.498374][   T73]      __sys_sendmsg+0xcd/0x170
[  568.498374][   T73]      do_syscall_64+0xc6/0x1e0
[  568.498374][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  568.498374][   T73] 
[  568.500991][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  568.500991][   T73]      netdev_get_by_index+0x5e/0x80
[  568.500991][   T73]      fib6_nh_init+0x3d8/0x1580
[  568.500991][   T73]      ip6_route_info_create+0xf18/0x17d0
[  568.500991][   T73]      ip6_route_add+0x1c/0x140
[  568.500991][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  568.500991][   T73]      addrconf_add_dev+0xe2/0x170
[  568.500991][   T73]      inet6_addr_add+0x12f/0xa40
[  568.500991][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  568.500991][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  568.500991][   T73]      netlink_rcv_skb+0x130/0x360
[  568.500991][   T73]      netlink_unicast+0x449/0x710
[  568.500991][   T73]      netlink_sendmsg+0x723/0xbe0
[  568.500991][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  568.500991][   T73]      ___sys_sendmsg+0xee/0x170
[  568.500991][   T73]      __sys_sendmsg+0xcd/0x170
[  568.500991][   T73]      do_syscall_64+0xc6/0x1e0
[  568.500991][   T73] 
[  568.502990][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  568.502990][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  568.502990][   T73]      ipv6_find_idev+0x102/0x170
[  568.502990][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  568.502990][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  568.502990][   T73]      netlink_rcv_skb+0x130/0x360
[  568.502990][   T73]      netlink_unicast+0x449/0x710
[  568.502990][   T73]      netlink_sendmsg+0x723/0xbe0
[  568.502990][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  568.502990][   T73]      ___sys_sendmsg+0xee/0x170
[  568.502990][   T73]      __sys_sendmsg+0xcd/0x170
[  568.502990][   T73]      do_syscall_64+0xc6/0x1e0
[  568.502990][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  568.502990][   T73] 
[  568.504850][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  568.504850][   T73]      neigh_parms_alloc+0x1e5/0x510
[  568.504850][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  568.504850][   T73]      ipv6_find_idev+0x102/0x170
[  568.504850][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  568.504850][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  568.504850][   T73]      netlink_rcv_skb+0x130/0x360
[  568.504850][   T73]      netlink_unicast+0x449/0x710
[  568.504850][   T73]      netlink_sendmsg+0x723/0xbe0
[  568.504850][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  568.504850][   T73]      ___sys_sendmsg+0xee/0x170
[  568.504850][   T73]      __sys_sendmsg+0xcd/0x170
[  568.504850][   T73]      do_syscall_64+0xc6/0x1e0
[  568.504850][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  568.504850][   T73] 
[  568.506570][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  568.506863][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  568.506863][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  568.506863][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  568.506863][   T73]      fib6_nh_init+0xa22/0x1580
[  568.506863][   T73]      ip6_route_info_create+0xf18/0x17d0
[  568.506863][   T73]      ip6_route_add+0x1c/0x140
[  568.506863][   T73]      inet6_rtm_newroute+0x104/0x110
[  568.506863][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  568.506863][   T73]      netlink_rcv_skb+0x130/0x360
[  568.506863][   T73]      netlink_unicast+0x449/0x710
[  568.506863][   T73]      netlink_sendmsg+0x723/0xbe0
[  568.506863][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  568.506863][   T73]      ___sys_sendmsg+0xee/0x170
[  568.506863][   T73]      __sys_sendmsg+0xcd/0x170
[  568.506863][   T73]      do_syscall_64+0xc6/0x1e0
[  568.506863][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  568.506863][   T73] 
[  568.508956][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  568.508956][   T73]      dst_init+0x84/0x4a0
[  568.508956][   T73]      dst_alloc+0x97/0x150
[  568.508956][   T73]      ip6_dst_alloc+0x23/0x90
[  568.508956][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  568.508956][   T73]      ip6_pol_route+0x56f/0x840
[  568.508956][   T73]      fib6_rule_lookup+0x456/0x630
[  568.508956][   T73]      ip6_route_input+0x59c/0xa50
[  568.508956][   T73]      ipv6_rcv+0x397/0x810
[  568.508956][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  568.508956][   T73]      process_backlog+0x101/0x620
[  568.508956][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  568.508956][   T73]      net_rx_action+0x495/0xbe0
[  568.508956][   T73]      __do_softirq+0x1b5/0x7f6
[  568.508956][   T73] 
[  568.510904][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  568.510904][   T73]      netdev_get_by_index+0x5e/0x80
[  568.510904][   T73]      fib6_nh_init+0x3d8/0x1580
[  568.510904][   T73]      ip6_route_info_create+0xf18/0x17d0
[  568.510904][   T73]      ip6_route_add+0x1c/0x140
[  568.510904][   T73]      addrconf_prefix_route+0x2a6/0x430
[  568.510904][   T73]      inet6_addr_add+0x4f8/0xa40
[  568.510904][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  568.510904][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  568.510904][   T73]      netlink_rcv_skb+0x130/0x360
[  568.510904][   T73]      netlink_unicast+0x449/0x710
[  568.510904][   T73]      netlink_sendmsg+0x723/0xbe0
[  568.510904][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  568.510904][   T73]      ___sys_sendmsg+0xee/0x170
[  568.510904][   T73]      __sys_sendmsg+0xcd/0x170
[  568.510904][   T73]      do_syscall_64+0xc6/0x1e0
[  568.510904][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  568.510904][   T73] 
[  568.513148][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  568.513148][   T73]      netdev_get_by_index+0x5e/0x80
[  568.513148][   T73]      fib6_nh_init+0x3d8/0x1580
[  568.513148][   T73]      ip6_route_info_create+0xf18/0x17d0
[  568.513148][   T73]      addrconf_f6i_alloc+0x315/0x560
[  568.513148][   T73]      ipv6_add_addr+0x411/0x2000
[  568.513148][   T73]      inet6_addr_add+0x30e/0xa40
[  568.513148][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  568.513148][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  568.513148][   T73]      netlink_rcv_skb+0x130/0x360
[  568.513148][   T73]      netlink_unicast+0x449/0x710
[  568.513148][   T73]      netlink_sendmsg+0x723/0xbe0
[  568.513148][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  568.513148][   T73]      ___sys_sendmsg+0xee/0x170
[  568.513148][   T73]      __sys_sendmsg+0xcd/0x170
[  568.513148][   T73]      do_syscall_64+0xc6/0x1e0
[  568.513148][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  568.513148][   T73] 
[  568.515407][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  568.515407][   T73]      netdev_get_by_index+0x5e/0x80
[  568.515407][   T73]      fib6_nh_init+0x3d8/0x1580
[  568.515407][   T73]      ip6_route_info_create+0xf18/0x17d0
[  568.515407][   T73]      ip6_route_add+0x1c/0x140
[  568.515407][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  568.515407][   T73]      addrconf_add_dev+0xe2/0x170
[  568.515407][   T73]      inet6_addr_add+0x12f/0xa40
[  568.515407][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  568.515407][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  568.515407][   T73]      netlink_rcv_skb+0x130/0x360
[  568.515407][   T73]      netlink_unicast+0x449/0x710
[  568.515407][   T73]      netlink_sendmsg+0x723/0xbe0
[  568.515407][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  568.515407][   T73]      ___sys_sendmsg+0xee/0x170
[  568.515407][   T73]      __sys_sendmsg+0xcd/0x170
[  568.515407][   T73]      do_syscall_64+0xc6/0x1e0
[  568.515407][   T73] 
[  568.517679][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  568.517679][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  568.517679][   T73]      ipv6_find_idev+0x102/0x170
[  568.517679][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  568.517679][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  568.517679][   T73]      netlink_rcv_skb+0x130/0x360
[  568.517679][   T73]      netlink_unicast+0x449/0x710
[  568.517679][   T73]      netlink_sendmsg+0x723/0xbe0
[  568.517679][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  568.517679][   T73]      ___sys_sendmsg+0xee/0x170
[  568.517679][   T73]      __sys_sendmsg+0xcd/0x170
[  568.517679][   T73]      do_syscall_64+0xc6/0x1e0
[  568.517679][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  568.517679][   T73] 
[  568.519462][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  568.519462][   T73]      neigh_parms_alloc+0x1e5/0x510
[  568.519462][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  568.519462][   T73]      ipv6_find_idev+0x102/0x170
[  568.519462][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  568.519462][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  568.519462][   T73]      netlink_rcv_skb+0x130/0x360
[  568.519462][   T73]      netlink_unicast+0x449/0x710
[  568.519462][   T73]      netlink_sendmsg+0x723/0xbe0
[  568.519462][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  568.519462][   T73]      ___sys_sendmsg+0xee/0x170
[  568.519462][   T73]      __sys_sendmsg+0xcd/0x170
[  568.519462][   T73]      do_syscall_64+0xc6/0x1e0
[  568.519462][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  568.519462][   T73] 
[  568.521342][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  568.521686][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  568.521686][   T73]      netdev_get_by_index+0x5e/0x80
[  568.521686][   T73]      fib6_nh_init+0x3d8/0x1580
[  568.521686][   T73]      ip6_route_info_create+0xf18/0x17d0
[  568.521686][   T73]      addrconf_f6i_alloc+0x265/0x560
[  568.521686][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  568.521686][   T73]      addrconf_join_anycast+0x1c0/0x220
[  568.521686][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  568.521686][   T73]      addrconf_dad_completed+0x12b/0xe20
[  568.521686][   T73]      addrconf_dad_begin+0x310/0x670
[  568.521686][   T73]      addrconf_dad_work+0x10b/0xab0
[  568.521686][   T73]      process_one_work+0x84d/0x18a0
[  568.521686][   T73]      worker_thread+0x587/0xd30
[  568.521686][   T73]      kthread+0x28a/0x350
[  568.521686][   T73]      ret_from_fork+0x31/0x70
[  568.521686][   T73]      ret_from_fork_asm+0x1a/0x30
[  568.521686][   T73] 
[  568.523789][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  568.523789][   T73]      netdev_get_by_index+0x5e/0x80
[  568.523789][   T73]      fib6_nh_init+0x3d8/0x1580
[  568.523789][   T73]      ip6_route_info_create+0xf18/0x17d0
[  568.523789][   T73]      ip6_route_add+0x1c/0x140
[  568.523789][   T73]      addrconf_prefix_route+0x2a6/0x430
[  568.523789][   T73]      inet6_addr_add+0x4f8/0xa40
[  568.523789][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  568.523789][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  568.523789][   T73]      netlink_rcv_skb+0x130/0x360
[  568.523789][   T73]      netlink_unicast+0x449/0x710
[  568.523789][   T73]      netlink_sendmsg+0x723/0xbe0
[  568.523789][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  568.523789][   T73]      ___sys_sendmsg+0xee/0x170
[  568.523789][   T73]      __sys_sendmsg+0xcd/0x170
[  568.523789][   T73]      do_syscall_64+0xc6/0x1e0
[  568.523789][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  568.523789][   T73] 
[  568.526050][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  568.526050][   T73]      netdev_get_by_index+0x5e/0x80
[  568.526050][   T73]      fib6_nh_init+0x3d8/0x1580
[  568.526050][   T73]      ip6_route_info_create+0xf18/0x17d0
[  568.526050][   T73]      addrconf_f6i_alloc+0x315/0x560
[  568.526050][   T73]      ipv6_add_addr+0x411/0x2000
[  568.526050][   T73]      inet6_addr_add+0x30e/0xa40
[  568.526050][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  568.526050][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  568.526050][   T73]      netlink_rcv_skb+0x130/0x360
[  568.526050][   T73]      netlink_unicast+0x449/0x710
[  568.526050][   T73]      netlink_sendmsg+0x723/0xbe0
[  568.526050][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  568.526050][   T73]      ___sys_sendmsg+0xee/0x170
[  568.526050][   T73]      __sys_sendmsg+0xcd/0x170
[  568.526050][   T73]      do_syscall_64+0xc6/0x1e0
[  568.526050][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  568.526050][   T73] 
[  568.528441][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  568.528441][   T73]      netdev_get_by_index+0x5e/0x80
[  568.528441][   T73]      fib6_nh_init+0x3d8/0x1580
[  568.528441][   T73]      ip6_route_info_create+0xf18/0x17d0
[  568.528441][   T73]      ip6_route_add+0x1c/0x140
[  568.528441][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  568.528441][   T73]      addrconf_add_dev+0xe2/0x170
[  568.528441][   T73]      inet6_addr_add+0x12f/0xa40
[  568.528441][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  568.528441][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  568.528441][   T73]      netlink_rcv_skb+0x130/0x360
[  568.528441][   T73]      netlink_unicast+0x449/0x710
[  568.528441][   T73]      netlink_sendmsg+0x723/0xbe0
[  568.528441][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  568.528441][   T73]      ___sys_sendmsg+0xee/0x170
[  568.528441][   T73]      __sys_sendmsg+0xcd/0x170
[  568.528441][   T73]      do_syscall_64+0xc6/0x1e0
[  568.528441][   T73] 
[  568.530656][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  568.530656][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  568.530656][   T73]      ipv6_find_idev+0x102/0x170
[  568.530656][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  568.530656][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  568.530656][   T73]      netlink_rcv_skb+0x130/0x360
[  568.530656][   T73]      netlink_unicast+0x449/0x710
[  568.530656][   T73]      netlink_sendmsg+0x723/0xbe0
[  568.530656][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  568.530656][   T73]      ___sys_sendmsg+0xee/0x170
[  568.530656][   T73]      __sys_sendmsg+0xcd/0x170
[  568.530656][   T73]      do_syscall_64+0xc6/0x1e0
[  568.530656][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  568.530656][   T73] 
[  568.532375][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  568.532375][   T73]      neigh_parms_alloc+0x1e5/0x510
[  568.532375][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  568.532375][   T73]      ipv6_find_idev+0x102/0x170
[  568.532375][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  568.532375][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  568.532375][   T73]      netlink_rcv_skb+0x130/0x360
[  568.532375][   T73]      netlink_unicast+0x449/0x710
[  568.532375][   T73]      netlink_sendmsg+0x723/0xbe0
[  568.532375][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  568.532375][   T73]      ___sys_sendmsg+0xee/0x170
[  568.532375][   T73]      __sys_sendmsg+0xcd/0x170
[  568.532375][   T73]      do_syscall_64+0xc6/0x1e0
[  568.532375][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  568.532375][   T73] 
[  578.679785][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  578.680206][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  578.680206][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  578.680206][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  578.680206][   T73]      fib6_nh_init+0xa22/0x1580
[  578.680206][   T73]      ip6_route_info_create+0xf18/0x17d0
[  578.680206][   T73]      ip6_route_add+0x1c/0x140
[  578.680206][   T73]      inet6_rtm_newroute+0x104/0x110
[  578.680206][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  578.680206][   T73]      netlink_rcv_skb+0x130/0x360
[  578.680206][   T73]      netlink_unicast+0x449/0x710
[  578.680206][   T73]      netlink_sendmsg+0x723/0xbe0
[  578.680206][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  578.680206][   T73]      ___sys_sendmsg+0xee/0x170
[  578.680206][   T73]      __sys_sendmsg+0xcd/0x170
[  578.680206][   T73]      do_syscall_64+0xc6/0x1e0
[  578.680206][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  578.680206][   T73] 
[  578.682139][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  578.682139][   T73]      dst_init+0x84/0x4a0
[  578.682139][   T73]      dst_alloc+0x97/0x150
[  578.682139][   T73]      ip6_dst_alloc+0x23/0x90
[  578.682139][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  578.682139][   T73]      ip6_pol_route+0x56f/0x840
[  578.682139][   T73]      fib6_rule_lookup+0x456/0x630
[  578.682139][   T73]      ip6_route_input+0x59c/0xa50
[  578.682139][   T73]      ipv6_rcv+0x397/0x810
[  578.682139][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  578.682139][   T73]      process_backlog+0x101/0x620
[  578.682139][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  578.682139][   T73]      net_rx_action+0x495/0xbe0
[  578.682139][   T73]      __do_softirq+0x1b5/0x7f6
[  578.682139][   T73] 
[  578.683800][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  578.683800][   T73]      netdev_get_by_index+0x5e/0x80
[  578.683800][   T73]      fib6_nh_init+0x3d8/0x1580
[  578.683800][   T73]      ip6_route_info_create+0xf18/0x17d0
[  578.683800][   T73]      ip6_route_add+0x1c/0x140
[  578.683800][   T73]      addrconf_prefix_route+0x2a6/0x430
[  578.683800][   T73]      inet6_addr_add+0x4f8/0xa40
[  578.683800][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  578.683800][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  578.683800][   T73]      netlink_rcv_skb+0x130/0x360
[  578.683800][   T73]      netlink_unicast+0x449/0x710
[  578.683800][   T73]      netlink_sendmsg+0x723/0xbe0
[  578.683800][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  578.683800][   T73]      ___sys_sendmsg+0xee/0x170
[  578.683800][   T73]      __sys_sendmsg+0xcd/0x170
[  578.683800][   T73]      do_syscall_64+0xc6/0x1e0
[  578.683800][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  578.683800][   T73] 
[  578.685848][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  578.685848][   T73]      netdev_get_by_index+0x5e/0x80
[  578.685848][   T73]      fib6_nh_init+0x3d8/0x1580
[  578.685848][   T73]      ip6_route_info_create+0xf18/0x17d0
[  578.685848][   T73]      addrconf_f6i_alloc+0x315/0x560
[  578.685848][   T73]      ipv6_add_addr+0x411/0x2000
[  578.685848][   T73]      inet6_addr_add+0x30e/0xa40
[  578.685848][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  578.685848][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  578.685848][   T73]      netlink_rcv_skb+0x130/0x360
[  578.685848][   T73]      netlink_unicast+0x449/0x710
[  578.685848][   T73]      netlink_sendmsg+0x723/0xbe0
[  578.685848][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  578.685848][   T73]      ___sys_sendmsg+0xee/0x170
[  578.685848][   T73]      __sys_sendmsg+0xcd/0x170
[  578.685848][   T73]      do_syscall_64+0xc6/0x1e0
[  578.685848][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  578.685848][   T73] 
[  578.687926][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  578.687926][   T73]      netdev_get_by_index+0x5e/0x80
[  578.687926][   T73]      fib6_nh_init+0x3d8/0x1580
[  578.687926][   T73]      ip6_route_info_create+0xf18/0x17d0
[  578.687926][   T73]      ip6_route_add+0x1c/0x140
[  578.687926][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  578.687926][   T73]      addrconf_add_dev+0xe2/0x170
[  578.687926][   T73]      inet6_addr_add+0x12f/0xa40
[  578.687926][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  578.687926][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  578.687926][   T73]      netlink_rcv_skb+0x130/0x360
[  578.687926][   T73]      netlink_unicast+0x449/0x710
[  578.687926][   T73]      netlink_sendmsg+0x723/0xbe0
[  578.687926][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  578.687926][   T73]      ___sys_sendmsg+0xee/0x170
[  578.687926][   T73]      __sys_sendmsg+0xcd/0x170
[  578.687926][   T73]      do_syscall_64+0xc6/0x1e0
[  578.687926][   T73] 
[  578.690043][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  578.690043][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  578.690043][   T73]      ipv6_find_idev+0x102/0x170
[  578.690043][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  578.690043][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  578.690043][   T73]      netlink_rcv_skb+0x130/0x360
[  578.690043][   T73]      netlink_unicast+0x449/0x710
[  578.690043][   T73]      netlink_sendmsg+0x723/0xbe0
[  578.690043][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  578.690043][   T73]      ___sys_sendmsg+0xee/0x170
[  578.690043][   T73]      __sys_sendmsg+0xcd/0x170
[  578.690043][   T73]      do_syscall_64+0xc6/0x1e0
[  578.690043][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  578.690043][   T73] 
[  578.691756][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  578.691756][   T73]      neigh_parms_alloc+0x1e5/0x510
[  578.691756][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  578.691756][   T73]      ipv6_find_idev+0x102/0x170
[  578.691756][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  578.691756][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  578.691756][   T73]      netlink_rcv_skb+0x130/0x360
[  578.691756][   T73]      netlink_unicast+0x449/0x710
[  578.691756][   T73]      netlink_sendmsg+0x723/0xbe0
[  578.691756][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  578.691756][   T73]      ___sys_sendmsg+0xee/0x170
[  578.691756][   T73]      __sys_sendmsg+0xcd/0x170
[  578.691756][   T73]      do_syscall_64+0xc6/0x1e0
[  578.691756][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  578.691756][   T73] 
[  578.693684][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  578.693986][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  578.693986][   T73]      netdev_get_by_index+0x5e/0x80
[  578.693986][   T73]      fib6_nh_init+0x3d8/0x1580
[  578.693986][   T73]      ip6_route_info_create+0xf18/0x17d0
[  578.693986][   T73]      addrconf_f6i_alloc+0x265/0x560
[  578.693986][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  578.693986][   T73]      addrconf_join_anycast+0x1c0/0x220
[  578.693986][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  578.693986][   T73]      addrconf_dad_completed+0x12b/0xe20
[  578.693986][   T73]      addrconf_dad_begin+0x310/0x670
[  578.693986][   T73]      addrconf_dad_work+0x10b/0xab0
[  578.693986][   T73]      process_one_work+0x84d/0x18a0
[  578.693986][   T73]      worker_thread+0x587/0xd30
[  578.693986][   T73]      kthread+0x28a/0x350
[  578.693986][   T73]      ret_from_fork+0x31/0x70
[  578.693986][   T73]      ret_from_fork_asm+0x1a/0x30
[  578.693986][   T73] 
[  578.695975][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  578.695975][   T73]      netdev_get_by_index+0x5e/0x80
[  578.695975][   T73]      fib6_nh_init+0x3d8/0x1580
[  578.695975][   T73]      ip6_route_info_create+0xf18/0x17d0
[  578.695975][   T73]      ip6_route_add+0x1c/0x140
[  578.695975][   T73]      addrconf_prefix_route+0x2a6/0x430
[  578.695975][   T73]      inet6_addr_add+0x4f8/0xa40
[  578.695975][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  578.695975][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  578.695975][   T73]      netlink_rcv_skb+0x130/0x360
[  578.695975][   T73]      netlink_unicast+0x449/0x710
[  578.695975][   T73]      netlink_sendmsg+0x723/0xbe0
[  578.695975][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  578.695975][   T73]      ___sys_sendmsg+0xee/0x170
[  578.695975][   T73]      __sys_sendmsg+0xcd/0x170
[  578.695975][   T73]      do_syscall_64+0xc6/0x1e0
[  578.695975][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  578.695975][   T73] 
[  578.698487][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  578.698487][   T73]      netdev_get_by_index+0x5e/0x80
[  578.698487][   T73]      fib6_nh_init+0x3d8/0x1580
[  578.698487][   T73]      ip6_route_info_create+0xf18/0x17d0
[  578.698487][   T73]      addrconf_f6i_alloc+0x315/0x560
[  578.698487][   T73]      ipv6_add_addr+0x411/0x2000
[  578.698487][   T73]      inet6_addr_add+0x30e/0xa40
[  578.698487][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  578.698487][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  578.698487][   T73]      netlink_rcv_skb+0x130/0x360
[  578.698487][   T73]      netlink_unicast+0x449/0x710
[  578.698487][   T73]      netlink_sendmsg+0x723/0xbe0
[  578.698487][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  578.698487][   T73]      ___sys_sendmsg+0xee/0x170
[  578.698487][   T73]      __sys_sendmsg+0xcd/0x170
[  578.698487][   T73]      do_syscall_64+0xc6/0x1e0
[  578.698487][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  578.698487][   T73] 
[  578.700513][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  578.700513][   T73]      netdev_get_by_index+0x5e/0x80
[  578.700513][   T73]      fib6_nh_init+0x3d8/0x1580
[  578.700513][   T73]      ip6_route_info_create+0xf18/0x17d0
[  578.700513][   T73]      ip6_route_add+0x1c/0x140
[  578.700513][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  578.700513][   T73]      addrconf_add_dev+0xe2/0x170
[  578.700513][   T73]      inet6_addr_add+0x12f/0xa40
[  578.700513][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  578.700513][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  578.700513][   T73]      netlink_rcv_skb+0x130/0x360
[  578.700513][   T73]      netlink_unicast+0x449/0x710
[  578.700513][   T73]      netlink_sendmsg+0x723/0xbe0
[  578.700513][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  578.700513][   T73]      ___sys_sendmsg+0xee/0x170
[  578.700513][   T73]      __sys_sendmsg+0xcd/0x170
[  578.700513][   T73]      do_syscall_64+0xc6/0x1e0
[  578.700513][   T73] 
[  578.702551][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  578.702551][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  578.702551][   T73]      ipv6_find_idev+0x102/0x170
[  578.702551][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  578.702551][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  578.702551][   T73]      netlink_rcv_skb+0x130/0x360
[  578.702551][   T73]      netlink_unicast+0x449/0x710
[  578.702551][   T73]      netlink_sendmsg+0x723/0xbe0
[  578.702551][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  578.702551][   T73]      ___sys_sendmsg+0xee/0x170
[  578.702551][   T73]      __sys_sendmsg+0xcd/0x170
[  578.702551][   T73]      do_syscall_64+0xc6/0x1e0
[  578.702551][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  578.702551][   T73] 
[  578.704126][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  578.704126][   T73]      neigh_parms_alloc+0x1e5/0x510
[  578.704126][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  578.704126][   T73]      ipv6_find_idev+0x102/0x170
[  578.704126][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  578.704126][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  578.704126][   T73]      netlink_rcv_skb+0x130/0x360
[  578.704126][   T73]      netlink_unicast+0x449/0x710
[  578.704126][   T73]      netlink_sendmsg+0x723/0xbe0
[  578.704126][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  578.704126][   T73]      ___sys_sendmsg+0xee/0x170
[  578.704126][   T73]      __sys_sendmsg+0xcd/0x170
[  578.704126][   T73]      do_syscall_64+0xc6/0x1e0
[  578.704126][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  578.704126][   T73] 
[  578.705894][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  578.706175][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  578.706175][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  578.706175][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  578.706175][   T73]      fib6_nh_init+0xa22/0x1580
[  578.706175][   T73]      ip6_route_info_create+0xf18/0x17d0
[  578.706175][   T73]      ip6_route_add+0x1c/0x140
[  578.706175][   T73]      inet6_rtm_newroute+0x104/0x110
[  578.706175][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  578.706175][   T73]      netlink_rcv_skb+0x130/0x360
[  578.706175][   T73]      netlink_unicast+0x449/0x710
[  578.706175][   T73]      netlink_sendmsg+0x723/0xbe0
[  578.706175][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  578.706175][   T73]      ___sys_sendmsg+0xee/0x170
[  578.706175][   T73]      __sys_sendmsg+0xcd/0x170
[  578.706175][   T73]      do_syscall_64+0xc6/0x1e0
[  578.706175][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  578.706175][   T73] 
[  578.708183][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  578.708183][   T73]      dst_init+0x84/0x4a0
[  578.708183][   T73]      dst_alloc+0x97/0x150
[  578.708183][   T73]      ip6_dst_alloc+0x23/0x90
[  578.708183][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  578.708183][   T73]      ip6_pol_route+0x56f/0x840
[  578.708183][   T73]      fib6_rule_lookup+0x456/0x630
[  578.708183][   T73]      ip6_route_input+0x59c/0xa50
[  578.708183][   T73]      ipv6_rcv+0x397/0x810
[  578.708183][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  578.708183][   T73]      process_backlog+0x101/0x620
[  578.708183][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  578.708183][   T73]      net_rx_action+0x495/0xbe0
[  578.708183][   T73]      __do_softirq+0x1b5/0x7f6
[  578.708183][   T73] 
[  578.710070][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  578.710070][   T73]      netdev_get_by_index+0x5e/0x80
[  578.710070][   T73]      fib6_nh_init+0x3d8/0x1580
[  578.710070][   T73]      ip6_route_info_create+0xf18/0x17d0
[  578.710070][   T73]      ip6_route_add+0x1c/0x140
[  578.710070][   T73]      addrconf_prefix_route+0x2a6/0x430
[  578.710070][   T73]      inet6_addr_add+0x4f8/0xa40
[  578.710070][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  578.710070][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  578.710070][   T73]      netlink_rcv_skb+0x130/0x360
[  578.710070][   T73]      netlink_unicast+0x449/0x710
[  578.710070][   T73]      netlink_sendmsg+0x723/0xbe0
[  578.710070][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  578.710070][   T73]      ___sys_sendmsg+0xee/0x170
[  578.710070][   T73]      __sys_sendmsg+0xcd/0x170
[  578.710070][   T73]      do_syscall_64+0xc6/0x1e0
[  578.710070][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  578.710070][   T73] 
[  578.712286][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  578.712286][   T73]      netdev_get_by_index+0x5e/0x80
[  578.712286][   T73]      fib6_nh_init+0x3d8/0x1580
[  578.712286][   T73]      ip6_route_info_create+0xf18/0x17d0
[  578.712286][   T73]      addrconf_f6i_alloc+0x315/0x560
[  578.712286][   T73]      ipv6_add_addr+0x411/0x2000
[  578.712286][   T73]      inet6_addr_add+0x30e/0xa40
[  578.712286][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  578.712286][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  578.712286][   T73]      netlink_rcv_skb+0x130/0x360
[  578.712286][   T73]      netlink_unicast+0x449/0x710
[  578.712286][   T73]      netlink_sendmsg+0x723/0xbe0
[  578.712286][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  578.712286][   T73]      ___sys_sendmsg+0xee/0x170
[  578.712286][   T73]      __sys_sendmsg+0xcd/0x170
[  578.712286][   T73]      do_syscall_64+0xc6/0x1e0
[  578.712286][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  578.712286][   T73] 
[  578.714675][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  578.714675][   T73]      netdev_get_by_index+0x5e/0x80
[  578.714675][   T73]      fib6_nh_init+0x3d8/0x1580
[  578.714675][   T73]      ip6_route_info_create+0xf18/0x17d0
[  578.714675][   T73]      ip6_route_add+0x1c/0x140
[  578.714675][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  578.714675][   T73]      addrconf_add_dev+0xe2/0x170
[  578.714675][   T73]      inet6_addr_add+0x12f/0xa40
[  578.714675][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  578.714675][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  578.714675][   T73]      netlink_rcv_skb+0x130/0x360
[  578.714675][   T73]      netlink_unicast+0x449/0x710
[  578.714675][   T73]      netlink_sendmsg+0x723/0xbe0
[  578.714675][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  578.714675][   T73]      ___sys_sendmsg+0xee/0x170
[  578.714675][   T73]      __sys_sendmsg+0xcd/0x170
[  578.714675][   T73]      do_syscall_64+0xc6/0x1e0
[  578.714675][   T73] 
[  578.716958][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  578.716958][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  578.716958][   T73]      ipv6_find_idev+0x102/0x170
[  578.716958][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  578.716958][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  578.716958][   T73]      netlink_rcv_skb+0x130/0x360
[  578.716958][   T73]      netlink_unicast+0x449/0x710
[  578.716958][   T73]      netlink_sendmsg+0x723/0xbe0
[  578.716958][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  578.716958][   T73]      ___sys_sendmsg+0xee/0x170
[  578.716958][   T73]      __sys_sendmsg+0xcd/0x170
[  578.716958][   T73]      do_syscall_64+0xc6/0x1e0
[  578.716958][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  578.716958][   T73] 
[  578.718707][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  578.718707][   T73]      neigh_parms_alloc+0x1e5/0x510
[  578.718707][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  578.718707][   T73]      ipv6_find_idev+0x102/0x170
[  578.718707][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  578.718707][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  578.718707][   T73]      netlink_rcv_skb+0x130/0x360
[  578.718707][   T73]      netlink_unicast+0x449/0x710
[  578.718707][   T73]      netlink_sendmsg+0x723/0xbe0
[  578.718707][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  578.718707][   T73]      ___sys_sendmsg+0xee/0x170
[  578.718707][   T73]      __sys_sendmsg+0xcd/0x170
[  578.718707][   T73]      do_syscall_64+0xc6/0x1e0
[  578.718707][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  578.718707][   T73] 
[  578.720629][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  578.721420][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  578.721420][   T73]      netdev_get_by_index+0x5e/0x80
[  578.721420][   T73]      fib6_nh_init+0x3d8/0x1580
[  578.721420][   T73]      ip6_route_info_create+0xf18/0x17d0
[  578.721420][   T73]      addrconf_f6i_alloc+0x265/0x560
[  578.721420][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  578.721420][   T73]      addrconf_join_anycast+0x1c0/0x220
[  578.721420][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  578.721420][   T73]      addrconf_dad_completed+0x12b/0xe20
[  578.721420][   T73]      addrconf_dad_begin+0x310/0x670
[  578.721420][   T73]      addrconf_dad_work+0x10b/0xab0
[  578.721420][   T73]      process_one_work+0x84d/0x18a0
[  578.721420][   T73]      worker_thread+0x587/0xd30
[  578.721420][   T73]      kthread+0x28a/0x350
[  578.721420][   T73]      ret_from_fork+0x31/0x70
[  578.721420][   T73]      ret_from_fork_asm+0x1a/0x30
[  578.721420][   T73] 
[  578.723452][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  578.723452][   T73]      netdev_get_by_index+0x5e/0x80
[  578.723452][   T73]      fib6_nh_init+0x3d8/0x1580
[  578.723452][   T73]      ip6_route_info_create+0xf18/0x17d0
[  578.723452][   T73]      ip6_route_add+0x1c/0x140
[  578.723452][   T73]      addrconf_prefix_route+0x2a6/0x430
[  578.723452][   T73]      inet6_addr_add+0x4f8/0xa40
[  578.723452][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  578.723452][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  578.723452][   T73]      netlink_rcv_skb+0x130/0x360
[  578.723452][   T73]      netlink_unicast+0x449/0x710
[  578.723452][   T73]      netlink_sendmsg+0x723/0xbe0
[  578.723452][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  578.723452][   T73]      ___sys_sendmsg+0xee/0x170
[  578.723452][   T73]      __sys_sendmsg+0xcd/0x170
[  578.723452][   T73]      do_syscall_64+0xc6/0x1e0
[  578.723452][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  578.723452][   T73] 
[  578.725572][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  578.725572][   T73]      netdev_get_by_index+0x5e/0x80
[  578.725572][   T73]      fib6_nh_init+0x3d8/0x1580
[  578.725572][   T73]      ip6_route_info_create+0xf18/0x17d0
[  578.725572][   T73]      addrconf_f6i_alloc+0x315/0x560
[  578.725572][   T73]      ipv6_add_addr+0x411/0x2000
[  578.725572][   T73]      inet6_addr_add+0x30e/0xa40
[  578.725572][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  578.725572][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  578.725572][   T73]      netlink_rcv_skb+0x130/0x360
[  578.725572][   T73]      netlink_unicast+0x449/0x710
[  578.725572][   T73]      netlink_sendmsg+0x723/0xbe0
[  578.725572][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  578.725572][   T73]      ___sys_sendmsg+0xee/0x170
[  578.725572][   T73]      __sys_sendmsg+0xcd/0x170
[  578.725572][   T73]      do_syscall_64+0xc6/0x1e0
[  578.725572][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  578.725572][   T73] 
[  578.727894][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  578.727894][   T73]      netdev_get_by_index+0x5e/0x80
[  578.727894][   T73]      fib6_nh_init+0x3d8/0x1580
[  578.727894][   T73]      ip6_route_info_create+0xf18/0x17d0
[  578.727894][   T73]      ip6_route_add+0x1c/0x140
[  578.727894][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  578.727894][   T73]      addrconf_add_dev+0xe2/0x170
[  578.727894][   T73]      inet6_addr_add+0x12f/0xa40
[  578.727894][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  578.727894][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  578.727894][   T73]      netlink_rcv_skb+0x130/0x360
[  578.727894][   T73]      netlink_unicast+0x449/0x710
[  578.727894][   T73]      netlink_sendmsg+0x723/0xbe0
[  578.727894][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  578.727894][   T73]      ___sys_sendmsg+0xee/0x170
[  578.727894][   T73]      __sys_sendmsg+0xcd/0x170
[  578.727894][   T73]      do_syscall_64+0xc6/0x1e0
[  578.727894][   T73] 
[  578.730121][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  578.730121][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  578.730121][   T73]      ipv6_find_idev+0x102/0x170
[  578.730121][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  578.730121][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  578.730121][   T73]      netlink_rcv_skb+0x130/0x360
[  578.730121][   T73]      netlink_unicast+0x449/0x710
[  578.730121][   T73]      netlink_sendmsg+0x723/0xbe0
[  578.730121][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  578.730121][   T73]      ___sys_sendmsg+0xee/0x170
[  578.730121][   T73]      __sys_sendmsg+0xcd/0x170
[  578.730121][   T73]      do_syscall_64+0xc6/0x1e0
[  578.730121][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  578.730121][   T73] 
[  578.731867][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  578.731867][   T73]      neigh_parms_alloc+0x1e5/0x510
[  578.731867][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  578.731867][   T73]      ipv6_find_idev+0x102/0x170
[  578.731867][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  578.731867][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  578.731867][   T73]      netlink_rcv_skb+0x130/0x360
[  578.731867][   T73]      netlink_unicast+0x449/0x710
[  578.731867][   T73]      netlink_sendmsg+0x723/0xbe0
[  578.731867][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  578.731867][   T73]      ___sys_sendmsg+0xee/0x170
[  578.731867][   T73]      __sys_sendmsg+0xcd/0x170
[  578.731867][   T73]      do_syscall_64+0xc6/0x1e0
[  578.731867][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  578.731867][   T73] 
[  588.847728][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  588.848207][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  588.848207][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  588.848207][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  588.848207][   T73]      fib6_nh_init+0xa22/0x1580
[  588.848207][   T73]      ip6_route_info_create+0xf18/0x17d0
[  588.848207][   T73]      ip6_route_add+0x1c/0x140
[  588.848207][   T73]      inet6_rtm_newroute+0x104/0x110
[  588.848207][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  588.848207][   T73]      netlink_rcv_skb+0x130/0x360
[  588.848207][   T73]      netlink_unicast+0x449/0x710
[  588.848207][   T73]      netlink_sendmsg+0x723/0xbe0
[  588.848207][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  588.848207][   T73]      ___sys_sendmsg+0xee/0x170
[  588.848207][   T73]      __sys_sendmsg+0xcd/0x170
[  588.848207][   T73]      do_syscall_64+0xc6/0x1e0
[  588.848207][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  588.848207][   T73] 
[  588.850267][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  588.850267][   T73]      dst_init+0x84/0x4a0
[  588.850267][   T73]      dst_alloc+0x97/0x150
[  588.850267][   T73]      ip6_dst_alloc+0x23/0x90
[  588.850267][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  588.850267][   T73]      ip6_pol_route+0x56f/0x840
[  588.850267][   T73]      fib6_rule_lookup+0x456/0x630
[  588.850267][   T73]      ip6_route_input+0x59c/0xa50
[  588.850267][   T73]      ipv6_rcv+0x397/0x810
[  588.850267][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  588.850267][   T73]      process_backlog+0x101/0x620
[  588.850267][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  588.850267][   T73]      net_rx_action+0x495/0xbe0
[  588.850267][   T73]      __do_softirq+0x1b5/0x7f6
[  588.850267][   T73] 
[  588.852054][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  588.852054][   T73]      netdev_get_by_index+0x5e/0x80
[  588.852054][   T73]      fib6_nh_init+0x3d8/0x1580
[  588.852054][   T73]      ip6_route_info_create+0xf18/0x17d0
[  588.852054][   T73]      ip6_route_add+0x1c/0x140
[  588.852054][   T73]      addrconf_prefix_route+0x2a6/0x430
[  588.852054][   T73]      inet6_addr_add+0x4f8/0xa40
[  588.852054][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  588.852054][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  588.852054][   T73]      netlink_rcv_skb+0x130/0x360
[  588.852054][   T73]      netlink_unicast+0x449/0x710
[  588.852054][   T73]      netlink_sendmsg+0x723/0xbe0
[  588.852054][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  588.852054][   T73]      ___sys_sendmsg+0xee/0x170
[  588.852054][   T73]      __sys_sendmsg+0xcd/0x170
[  588.852054][   T73]      do_syscall_64+0xc6/0x1e0
[  588.852054][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  588.852054][   T73] 
[  588.854244][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  588.854244][   T73]      netdev_get_by_index+0x5e/0x80
[  588.854244][   T73]      fib6_nh_init+0x3d8/0x1580
[  588.854244][   T73]      ip6_route_info_create+0xf18/0x17d0
[  588.854244][   T73]      addrconf_f6i_alloc+0x315/0x560
[  588.854244][   T73]      ipv6_add_addr+0x411/0x2000
[  588.854244][   T73]      inet6_addr_add+0x30e/0xa40
[  588.854244][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  588.854244][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  588.854244][   T73]      netlink_rcv_skb+0x130/0x360
[  588.854244][   T73]      netlink_unicast+0x449/0x710
[  588.854244][   T73]      netlink_sendmsg+0x723/0xbe0
[  588.854244][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  588.854244][   T73]      ___sys_sendmsg+0xee/0x170
[  588.854244][   T73]      __sys_sendmsg+0xcd/0x170
[  588.854244][   T73]      do_syscall_64+0xc6/0x1e0
[  588.854244][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  588.854244][   T73] 
[  588.856491][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  588.856491][   T73]      netdev_get_by_index+0x5e/0x80
[  588.856491][   T73]      fib6_nh_init+0x3d8/0x1580
[  588.856491][   T73]      ip6_route_info_create+0xf18/0x17d0
[  588.856491][   T73]      ip6_route_add+0x1c/0x140
[  588.856491][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  588.856491][   T73]      addrconf_add_dev+0xe2/0x170
[  588.856491][   T73]      inet6_addr_add+0x12f/0xa40
[  588.856491][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  588.856491][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  588.856491][   T73]      netlink_rcv_skb+0x130/0x360
[  588.856491][   T73]      netlink_unicast+0x449/0x710
[  588.856491][   T73]      netlink_sendmsg+0x723/0xbe0
[  588.856491][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  588.856491][   T73]      ___sys_sendmsg+0xee/0x170
[  588.856491][   T73]      __sys_sendmsg+0xcd/0x170
[  588.856491][   T73]      do_syscall_64+0xc6/0x1e0
[  588.856491][   T73] 
[  588.858652][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  588.858652][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  588.858652][   T73]      ipv6_find_idev+0x102/0x170
[  588.858652][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  588.858652][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  588.858652][   T73]      netlink_rcv_skb+0x130/0x360
[  588.858652][   T73]      netlink_unicast+0x449/0x710
[  588.858652][   T73]      netlink_sendmsg+0x723/0xbe0
[  588.858652][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  588.858652][   T73]      ___sys_sendmsg+0xee/0x170
[  588.858652][   T73]      __sys_sendmsg+0xcd/0x170
[  588.858652][   T73]      do_syscall_64+0xc6/0x1e0
[  588.858652][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  588.858652][   T73] 
[  588.860350][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  588.860350][   T73]      neigh_parms_alloc+0x1e5/0x510
[  588.860350][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  588.860350][   T73]      ipv6_find_idev+0x102/0x170
[  588.860350][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  588.860350][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  588.860350][   T73]      netlink_rcv_skb+0x130/0x360
[  588.860350][   T73]      netlink_unicast+0x449/0x710
[  588.860350][   T73]      netlink_sendmsg+0x723/0xbe0
[  588.860350][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  588.860350][   T73]      ___sys_sendmsg+0xee/0x170
[  588.860350][   T73]      __sys_sendmsg+0xcd/0x170
[  588.860350][   T73]      do_syscall_64+0xc6/0x1e0
[  588.860350][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  588.860350][   T73] 
[  588.862225][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  588.862546][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  588.862546][   T73]      netdev_get_by_index+0x5e/0x80
[  588.862546][   T73]      fib6_nh_init+0x3d8/0x1580
[  588.862546][   T73]      ip6_route_info_create+0xf18/0x17d0
[  588.862546][   T73]      addrconf_f6i_alloc+0x265/0x560
[  588.862546][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  588.862546][   T73]      addrconf_join_anycast+0x1c0/0x220
[  588.862546][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  588.862546][   T73]      addrconf_dad_completed+0x12b/0xe20
[  588.862546][   T73]      addrconf_dad_begin+0x310/0x670
[  588.862546][   T73]      addrconf_dad_work+0x10b/0xab0
[  588.862546][   T73]      process_one_work+0x84d/0x18a0
[  588.862546][   T73]      worker_thread+0x587/0xd30
[  588.862546][   T73]      kthread+0x28a/0x350
[  588.862546][   T73]      ret_from_fork+0x31/0x70
[  588.862546][   T73]      ret_from_fork_asm+0x1a/0x30
[  588.862546][   T73] 
[  588.864676][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  588.864676][   T73]      netdev_get_by_index+0x5e/0x80
[  588.864676][   T73]      fib6_nh_init+0x3d8/0x1580
[  588.864676][   T73]      ip6_route_info_create+0xf18/0x17d0
[  588.864676][   T73]      ip6_route_add+0x1c/0x140
[  588.864676][   T73]      addrconf_prefix_route+0x2a6/0x430
[  588.864676][   T73]      inet6_addr_add+0x4f8/0xa40
[  588.864676][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  588.864676][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  588.864676][   T73]      netlink_rcv_skb+0x130/0x360
[  588.864676][   T73]      netlink_unicast+0x449/0x710
[  588.864676][   T73]      netlink_sendmsg+0x723/0xbe0
[  588.864676][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  588.864676][   T73]      ___sys_sendmsg+0xee/0x170
[  588.864676][   T73]      __sys_sendmsg+0xcd/0x170
[  588.864676][   T73]      do_syscall_64+0xc6/0x1e0
[  588.864676][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  588.864676][   T73] 
[  588.866891][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  588.866891][   T73]      netdev_get_by_index+0x5e/0x80
[  588.866891][   T73]      fib6_nh_init+0x3d8/0x1580
[  588.866891][   T73]      ip6_route_info_create+0xf18/0x17d0
[  588.866891][   T73]      addrconf_f6i_alloc+0x315/0x560
[  588.866891][   T73]      ipv6_add_addr+0x411/0x2000
[  588.866891][   T73]      inet6_addr_add+0x30e/0xa40
[  588.866891][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  588.866891][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  588.866891][   T73]      netlink_rcv_skb+0x130/0x360
[  588.866891][   T73]      netlink_unicast+0x449/0x710
[  588.866891][   T73]      netlink_sendmsg+0x723/0xbe0
[  588.866891][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  588.866891][   T73]      ___sys_sendmsg+0xee/0x170
[  588.866891][   T73]      __sys_sendmsg+0xcd/0x170
[  588.866891][   T73]      do_syscall_64+0xc6/0x1e0
[  588.866891][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  588.866891][   T73] 
[  588.869096][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  588.869096][   T73]      netdev_get_by_index+0x5e/0x80
[  588.869096][   T73]      fib6_nh_init+0x3d8/0x1580
[  588.869096][   T73]      ip6_route_info_create+0xf18/0x17d0
[  588.869096][   T73]      ip6_route_add+0x1c/0x140
[  588.869096][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  588.869096][   T73]      addrconf_add_dev+0xe2/0x170
[  588.869096][   T73]      inet6_addr_add+0x12f/0xa40
[  588.869096][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  588.869096][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  588.869096][   T73]      netlink_rcv_skb+0x130/0x360
[  588.869096][   T73]      netlink_unicast+0x449/0x710
[  588.869096][   T73]      netlink_sendmsg+0x723/0xbe0
[  588.869096][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  588.869096][   T73]      ___sys_sendmsg+0xee/0x170
[  588.869096][   T73]      __sys_sendmsg+0xcd/0x170
[  588.869096][   T73]      do_syscall_64+0xc6/0x1e0
[  588.869096][   T73] 
[  588.871246][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  588.871246][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  588.871246][   T73]      ipv6_find_idev+0x102/0x170
[  588.871246][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  588.871246][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  588.871246][   T73]      netlink_rcv_skb+0x130/0x360
[  588.871246][   T73]      netlink_unicast+0x449/0x710
[  588.871246][   T73]      netlink_sendmsg+0x723/0xbe0
[  588.871246][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  588.871246][   T73]      ___sys_sendmsg+0xee/0x170
[  588.871246][   T73]      __sys_sendmsg+0xcd/0x170
[  588.871246][   T73]      do_syscall_64+0xc6/0x1e0
[  588.871246][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  588.871246][   T73] 
[  588.872953][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  588.872953][   T73]      neigh_parms_alloc+0x1e5/0x510
[  588.872953][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  588.872953][   T73]      ipv6_find_idev+0x102/0x170
[  588.872953][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  588.872953][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  588.872953][   T73]      netlink_rcv_skb+0x130/0x360
[  588.872953][   T73]      netlink_unicast+0x449/0x710
[  588.872953][   T73]      netlink_sendmsg+0x723/0xbe0
[  588.872953][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  588.872953][   T73]      ___sys_sendmsg+0xee/0x170
[  588.872953][   T73]      __sys_sendmsg+0xcd/0x170
[  588.872953][   T73]      do_syscall_64+0xc6/0x1e0
[  588.872953][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  588.872953][   T73] 
[  588.875026][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  588.875447][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  588.875447][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  588.875447][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  588.875447][   T73]      fib6_nh_init+0xa22/0x1580
[  588.875447][   T73]      ip6_route_info_create+0xf18/0x17d0
[  588.875447][   T73]      ip6_route_add+0x1c/0x140
[  588.875447][   T73]      inet6_rtm_newroute+0x104/0x110
[  588.875447][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  588.875447][   T73]      netlink_rcv_skb+0x130/0x360
[  588.875447][   T73]      netlink_unicast+0x449/0x710
[  588.875447][   T73]      netlink_sendmsg+0x723/0xbe0
[  588.875447][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  588.875447][   T73]      ___sys_sendmsg+0xee/0x170
[  588.875447][   T73]      __sys_sendmsg+0xcd/0x170
[  588.875447][   T73]      do_syscall_64+0xc6/0x1e0
[  588.875447][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  588.875447][   T73] 
[  588.878609][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  588.878609][   T73]      dst_init+0x84/0x4a0
[  588.878609][   T73]      dst_alloc+0x97/0x150
[  588.878609][   T73]      ip6_dst_alloc+0x23/0x90
[  588.878609][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  588.878609][   T73]      ip6_pol_route+0x56f/0x840
[  588.878609][   T73]      fib6_rule_lookup+0x456/0x630
[  588.878609][   T73]      ip6_route_input+0x59c/0xa50
[  588.878609][   T73]      ipv6_rcv+0x397/0x810
[  588.878609][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  588.878609][   T73]      process_backlog+0x101/0x620
[  588.878609][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  588.878609][   T73]      net_rx_action+0x495/0xbe0
[  588.878609][   T73]      __do_softirq+0x1b5/0x7f6
[  588.878609][   T73] 
[  588.881699][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  588.881699][   T73]      netdev_get_by_index+0x5e/0x80
[  588.881699][   T73]      fib6_nh_init+0x3d8/0x1580
[  588.881699][   T73]      ip6_route_info_create+0xf18/0x17d0
[  588.881699][   T73]      ip6_route_add+0x1c/0x140
[  588.881699][   T73]      addrconf_prefix_route+0x2a6/0x430
[  588.881699][   T73]      inet6_addr_add+0x4f8/0xa40
[  588.881699][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  588.881699][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  588.881699][   T73]      netlink_rcv_skb+0x130/0x360
[  588.881699][   T73]      netlink_unicast+0x449/0x710
[  588.881699][   T73]      netlink_sendmsg+0x723/0xbe0
[  588.881699][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  588.881699][   T73]      ___sys_sendmsg+0xee/0x170
[  588.881699][   T73]      __sys_sendmsg+0xcd/0x170
[  588.881699][   T73]      do_syscall_64+0xc6/0x1e0
[  588.881699][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  588.881699][   T73] 
[  588.885312][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  588.885312][   T73]      netdev_get_by_index+0x5e/0x80
[  588.885312][   T73]      fib6_nh_init+0x3d8/0x1580
[  588.885312][   T73]      ip6_route_info_create+0xf18/0x17d0
[  588.885312][   T73]      addrconf_f6i_alloc+0x315/0x560
[  588.885312][   T73]      ipv6_add_addr+0x411/0x2000
[  588.885312][   T73]      inet6_addr_add+0x30e/0xa40
[  588.885312][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  588.885312][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  588.885312][   T73]      netlink_rcv_skb+0x130/0x360
[  588.885312][   T73]      netlink_unicast+0x449/0x710
[  588.885312][   T73]      netlink_sendmsg+0x723/0xbe0
[  588.885312][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  588.885312][   T73]      ___sys_sendmsg+0xee/0x170
[  588.885312][   T73]      __sys_sendmsg+0xcd/0x170
[  588.885312][   T73]      do_syscall_64+0xc6/0x1e0
[  588.885312][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  588.885312][   T73] 
[  588.887838][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  588.887838][   T73]      netdev_get_by_index+0x5e/0x80
[  588.887838][   T73]      fib6_nh_init+0x3d8/0x1580
[  588.887838][   T73]      ip6_route_info_create+0xf18/0x17d0
[  588.887838][   T73]      ip6_route_add+0x1c/0x140
[  588.887838][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  588.887838][   T73]      addrconf_add_dev+0xe2/0x170
[  588.887838][   T73]      inet6_addr_add+0x12f/0xa40
[  588.887838][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  588.887838][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  588.887838][   T73]      netlink_rcv_skb+0x130/0x360
[  588.887838][   T73]      netlink_unicast+0x449/0x710
[  588.887838][   T73]      netlink_sendmsg+0x723/0xbe0
[  588.887838][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  588.887838][   T73]      ___sys_sendmsg+0xee/0x170
[  588.887838][   T73]      __sys_sendmsg+0xcd/0x170
[  588.887838][   T73]      do_syscall_64+0xc6/0x1e0
[  588.887838][   T73] 
[  588.890092][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  588.890092][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  588.890092][   T73]      ipv6_find_idev+0x102/0x170
[  588.890092][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  588.890092][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  588.890092][   T73]      netlink_rcv_skb+0x130/0x360
[  588.890092][   T73]      netlink_unicast+0x449/0x710
[  588.890092][   T73]      netlink_sendmsg+0x723/0xbe0
[  588.890092][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  588.890092][   T73]      ___sys_sendmsg+0xee/0x170
[  588.890092][   T73]      __sys_sendmsg+0xcd/0x170
[  588.890092][   T73]      do_syscall_64+0xc6/0x1e0
[  588.890092][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  588.890092][   T73] 
[  588.891857][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  588.891857][   T73]      neigh_parms_alloc+0x1e5/0x510
[  588.891857][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  588.891857][   T73]      ipv6_find_idev+0x102/0x170
[  588.891857][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  588.891857][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  588.891857][   T73]      netlink_rcv_skb+0x130/0x360
[  588.891857][   T73]      netlink_unicast+0x449/0x710
[  588.891857][   T73]      netlink_sendmsg+0x723/0xbe0
[  588.891857][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  588.891857][   T73]      ___sys_sendmsg+0xee/0x170
[  588.891857][   T73]      __sys_sendmsg+0xcd/0x170
[  588.891857][   T73]      do_syscall_64+0xc6/0x1e0
[  588.891857][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  588.891857][   T73] 
[  588.893833][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  588.894242][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  588.894242][   T73]      netdev_get_by_index+0x5e/0x80
[  588.894242][   T73]      fib6_nh_init+0x3d8/0x1580
[  588.894242][   T73]      ip6_route_info_create+0xf18/0x17d0
[  588.894242][   T73]      addrconf_f6i_alloc+0x265/0x560
[  588.894242][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  588.894242][   T73]      addrconf_join_anycast+0x1c0/0x220
[  588.894242][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  588.894242][   T73]      addrconf_dad_completed+0x12b/0xe20
[  588.894242][   T73]      addrconf_dad_begin+0x310/0x670
[  588.894242][   T73]      addrconf_dad_work+0x10b/0xab0
[  588.894242][   T73]      process_one_work+0x84d/0x18a0
[  588.894242][   T73]      worker_thread+0x587/0xd30
[  588.894242][   T73]      kthread+0x28a/0x350
[  588.894242][   T73]      ret_from_fork+0x31/0x70
[  588.894242][   T73]      ret_from_fork_asm+0x1a/0x30
[  588.894242][   T73] 
[  588.896440][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  588.896440][   T73]      netdev_get_by_index+0x5e/0x80
[  588.896440][   T73]      fib6_nh_init+0x3d8/0x1580
[  588.896440][   T73]      ip6_route_info_create+0xf18/0x17d0
[  588.896440][   T73]      ip6_route_add+0x1c/0x140
[  588.896440][   T73]      addrconf_prefix_route+0x2a6/0x430
[  588.896440][   T73]      inet6_addr_add+0x4f8/0xa40
[  588.896440][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  588.896440][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  588.896440][   T73]      netlink_rcv_skb+0x130/0x360
[  588.896440][   T73]      netlink_unicast+0x449/0x710
[  588.896440][   T73]      netlink_sendmsg+0x723/0xbe0
[  588.896440][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  588.896440][   T73]      ___sys_sendmsg+0xee/0x170
[  588.896440][   T73]      __sys_sendmsg+0xcd/0x170
[  588.896440][   T73]      do_syscall_64+0xc6/0x1e0
[  588.896440][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  588.896440][   T73] 
[  588.898712][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  588.898712][   T73]      netdev_get_by_index+0x5e/0x80
[  588.898712][   T73]      fib6_nh_init+0x3d8/0x1580
[  588.898712][   T73]      ip6_route_info_create+0xf18/0x17d0
[  588.898712][   T73]      addrconf_f6i_alloc+0x315/0x560
[  588.898712][   T73]      ipv6_add_addr+0x411/0x2000
[  588.898712][   T73]      inet6_addr_add+0x30e/0xa40
[  588.898712][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  588.898712][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  588.898712][   T73]      netlink_rcv_skb+0x130/0x360
[  588.898712][   T73]      netlink_unicast+0x449/0x710
[  588.898712][   T73]      netlink_sendmsg+0x723/0xbe0
[  588.898712][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  588.898712][   T73]      ___sys_sendmsg+0xee/0x170
[  588.898712][   T73]      __sys_sendmsg+0xcd/0x170
[  588.898712][   T73]      do_syscall_64+0xc6/0x1e0
[  588.898712][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  588.898712][   T73] 
[  588.901005][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  588.901005][   T73]      netdev_get_by_index+0x5e/0x80
[  588.901005][   T73]      fib6_nh_init+0x3d8/0x1580
[  588.901005][   T73]      ip6_route_info_create+0xf18/0x17d0
[  588.901005][   T73]      ip6_route_add+0x1c/0x140
[  588.901005][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  588.901005][   T73]      addrconf_add_dev+0xe2/0x170
[  588.901005][   T73]      inet6_addr_add+0x12f/0xa40
[  588.901005][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  588.901005][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  588.901005][   T73]      netlink_rcv_skb+0x130/0x360
[  588.901005][   T73]      netlink_unicast+0x449/0x710
[  588.901005][   T73]      netlink_sendmsg+0x723/0xbe0
[  588.901005][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  588.901005][   T73]      ___sys_sendmsg+0xee/0x170
[  588.901005][   T73]      __sys_sendmsg+0xcd/0x170
[  588.901005][   T73]      do_syscall_64+0xc6/0x1e0
[  588.901005][   T73] 
[  588.903270][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  588.903270][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  588.903270][   T73]      ipv6_find_idev+0x102/0x170
[  588.903270][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  588.903270][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  588.903270][   T73]      netlink_rcv_skb+0x130/0x360
[  588.903270][   T73]      netlink_unicast+0x449/0x710
[  588.903270][   T73]      netlink_sendmsg+0x723/0xbe0
[  588.903270][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  588.903270][   T73]      ___sys_sendmsg+0xee/0x170
[  588.903270][   T73]      __sys_sendmsg+0xcd/0x170
[  588.903270][   T73]      do_syscall_64+0xc6/0x1e0
[  588.903270][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  588.903270][   T73] 
[  588.905153][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  588.905153][   T73]      neigh_parms_alloc+0x1e5/0x510
[  588.905153][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  588.905153][   T73]      ipv6_find_idev+0x102/0x170
[  588.905153][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  588.905153][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  588.905153][   T73]      netlink_rcv_skb+0x130/0x360
[  588.905153][   T73]      netlink_unicast+0x449/0x710
[  588.905153][   T73]      netlink_sendmsg+0x723/0xbe0
[  588.905153][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  588.905153][   T73]      ___sys_sendmsg+0xee/0x170
[  588.905153][   T73]      __sys_sendmsg+0xcd/0x170
[  588.905153][   T73]      do_syscall_64+0xc6/0x1e0
[  588.905153][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  588.905153][   T73] 
[  598.991765][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  598.992221][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  598.992221][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  598.992221][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  598.992221][   T73]      fib6_nh_init+0xa22/0x1580
[  598.992221][   T73]      ip6_route_info_create+0xf18/0x17d0
[  598.992221][   T73]      ip6_route_add+0x1c/0x140
[  598.992221][   T73]      inet6_rtm_newroute+0x104/0x110
[  598.992221][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  598.992221][   T73]      netlink_rcv_skb+0x130/0x360
[  598.992221][   T73]      netlink_unicast+0x449/0x710
[  598.992221][   T73]      netlink_sendmsg+0x723/0xbe0
[  598.992221][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  598.992221][   T73]      ___sys_sendmsg+0xee/0x170
[  598.992221][   T73]      __sys_sendmsg+0xcd/0x170
[  598.992221][   T73]      do_syscall_64+0xc6/0x1e0
[  598.992221][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  598.992221][   T73] 
[  598.994271][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  598.994271][   T73]      dst_init+0x84/0x4a0
[  598.994271][   T73]      dst_alloc+0x97/0x150
[  598.994271][   T73]      ip6_dst_alloc+0x23/0x90
[  598.994271][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  598.994271][   T73]      ip6_pol_route+0x56f/0x840
[  598.994271][   T73]      fib6_rule_lookup+0x456/0x630
[  598.994271][   T73]      ip6_route_input+0x59c/0xa50
[  598.994271][   T73]      ipv6_rcv+0x397/0x810
[  598.994271][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  598.994271][   T73]      process_backlog+0x101/0x620
[  598.994271][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  598.994271][   T73]      net_rx_action+0x495/0xbe0
[  598.994271][   T73]      __do_softirq+0x1b5/0x7f6
[  598.994271][   T73] 
[  598.996021][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  598.996021][   T73]      netdev_get_by_index+0x5e/0x80
[  598.996021][   T73]      fib6_nh_init+0x3d8/0x1580
[  598.996021][   T73]      ip6_route_info_create+0xf18/0x17d0
[  598.996021][   T73]      ip6_route_add+0x1c/0x140
[  598.996021][   T73]      addrconf_prefix_route+0x2a6/0x430
[  598.996021][   T73]      inet6_addr_add+0x4f8/0xa40
[  598.996021][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  598.996021][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  598.996021][   T73]      netlink_rcv_skb+0x130/0x360
[  598.996021][   T73]      netlink_unicast+0x449/0x710
[  598.996021][   T73]      netlink_sendmsg+0x723/0xbe0
[  598.996021][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  598.996021][   T73]      ___sys_sendmsg+0xee/0x170
[  598.996021][   T73]      __sys_sendmsg+0xcd/0x170
[  598.996021][   T73]      do_syscall_64+0xc6/0x1e0
[  598.996021][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  598.996021][   T73] 
[  598.998137][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  598.998137][   T73]      netdev_get_by_index+0x5e/0x80
[  598.998137][   T73]      fib6_nh_init+0x3d8/0x1580
[  598.998137][   T73]      ip6_route_info_create+0xf18/0x17d0
[  598.998137][   T73]      addrconf_f6i_alloc+0x315/0x560
[  598.998137][   T73]      ipv6_add_addr+0x411/0x2000
[  598.998137][   T73]      inet6_addr_add+0x30e/0xa40
[  598.998137][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  598.998137][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  598.998137][   T73]      netlink_rcv_skb+0x130/0x360
[  598.998137][   T73]      netlink_unicast+0x449/0x710
[  598.998137][   T73]      netlink_sendmsg+0x723/0xbe0
[  598.998137][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  598.998137][   T73]      ___sys_sendmsg+0xee/0x170
[  598.998137][   T73]      __sys_sendmsg+0xcd/0x170
[  598.998137][   T73]      do_syscall_64+0xc6/0x1e0
[  598.998137][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  598.998137][   T73] 
[  599.000225][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  599.000225][   T73]      netdev_get_by_index+0x5e/0x80
[  599.000225][   T73]      fib6_nh_init+0x3d8/0x1580
[  599.000225][   T73]      ip6_route_info_create+0xf18/0x17d0
[  599.000225][   T73]      ip6_route_add+0x1c/0x140
[  599.000225][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  599.000225][   T73]      addrconf_add_dev+0xe2/0x170
[  599.000225][   T73]      inet6_addr_add+0x12f/0xa40
[  599.000225][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  599.000225][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  599.000225][   T73]      netlink_rcv_skb+0x130/0x360
[  599.000225][   T73]      netlink_unicast+0x449/0x710
[  599.000225][   T73]      netlink_sendmsg+0x723/0xbe0
[  599.000225][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  599.000225][   T73]      ___sys_sendmsg+0xee/0x170
[  599.000225][   T73]      __sys_sendmsg+0xcd/0x170
[  599.000225][   T73]      do_syscall_64+0xc6/0x1e0
[  599.000225][   T73] 
[  599.002219][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  599.002219][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  599.002219][   T73]      ipv6_find_idev+0x102/0x170
[  599.002219][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  599.002219][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  599.002219][   T73]      netlink_rcv_skb+0x130/0x360
[  599.002219][   T73]      netlink_unicast+0x449/0x710
[  599.002219][   T73]      netlink_sendmsg+0x723/0xbe0
[  599.002219][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  599.002219][   T73]      ___sys_sendmsg+0xee/0x170
[  599.002219][   T73]      __sys_sendmsg+0xcd/0x170
[  599.002219][   T73]      do_syscall_64+0xc6/0x1e0
[  599.002219][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  599.002219][   T73] 
[  599.003822][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  599.003822][   T73]      neigh_parms_alloc+0x1e5/0x510
[  599.003822][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  599.003822][   T73]      ipv6_find_idev+0x102/0x170
[  599.003822][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  599.003822][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  599.003822][   T73]      netlink_rcv_skb+0x130/0x360
[  599.003822][   T73]      netlink_unicast+0x449/0x710
[  599.003822][   T73]      netlink_sendmsg+0x723/0xbe0
[  599.003822][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  599.003822][   T73]      ___sys_sendmsg+0xee/0x170
[  599.003822][   T73]      __sys_sendmsg+0xcd/0x170
[  599.003822][   T73]      do_syscall_64+0xc6/0x1e0
[  599.003822][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  599.003822][   T73] 
[  599.005665][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  599.005976][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  599.005976][   T73]      netdev_get_by_index+0x5e/0x80
[  599.005976][   T73]      fib6_nh_init+0x3d8/0x1580
[  599.005976][   T73]      ip6_route_info_create+0xf18/0x17d0
[  599.005976][   T73]      addrconf_f6i_alloc+0x265/0x560
[  599.005976][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  599.005976][   T73]      addrconf_join_anycast+0x1c0/0x220
[  599.005976][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  599.005976][   T73]      addrconf_dad_completed+0x12b/0xe20
[  599.005976][   T73]      addrconf_dad_begin+0x310/0x670
[  599.005976][   T73]      addrconf_dad_work+0x10b/0xab0
[  599.005976][   T73]      process_one_work+0x84d/0x18a0
[  599.005976][   T73]      worker_thread+0x587/0xd30
[  599.005976][   T73]      kthread+0x28a/0x350
[  599.005976][   T73]      ret_from_fork+0x31/0x70
[  599.005976][   T73]      ret_from_fork_asm+0x1a/0x30
[  599.005976][   T73] 
[  599.007958][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  599.007958][   T73]      netdev_get_by_index+0x5e/0x80
[  599.007958][   T73]      fib6_nh_init+0x3d8/0x1580
[  599.007958][   T73]      ip6_route_info_create+0xf18/0x17d0
[  599.007958][   T73]      ip6_route_add+0x1c/0x140
[  599.007958][   T73]      addrconf_prefix_route+0x2a6/0x430
[  599.007958][   T73]      inet6_addr_add+0x4f8/0xa40
[  599.007958][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  599.007958][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  599.007958][   T73]      netlink_rcv_skb+0x130/0x360
[  599.007958][   T73]      netlink_unicast+0x449/0x710
[  599.007958][   T73]      netlink_sendmsg+0x723/0xbe0
[  599.007958][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  599.007958][   T73]      ___sys_sendmsg+0xee/0x170
[  599.007958][   T73]      __sys_sendmsg+0xcd/0x170
[  599.007958][   T73]      do_syscall_64+0xc6/0x1e0
[  599.007958][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  599.007958][   T73] 
[  599.010085][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  599.010085][   T73]      netdev_get_by_index+0x5e/0x80
[  599.010085][   T73]      fib6_nh_init+0x3d8/0x1580
[  599.010085][   T73]      ip6_route_info_create+0xf18/0x17d0
[  599.010085][   T73]      addrconf_f6i_alloc+0x315/0x560
[  599.010085][   T73]      ipv6_add_addr+0x411/0x2000
[  599.010085][   T73]      inet6_addr_add+0x30e/0xa40
[  599.010085][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  599.010085][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  599.010085][   T73]      netlink_rcv_skb+0x130/0x360
[  599.010085][   T73]      netlink_unicast+0x449/0x710
[  599.010085][   T73]      netlink_sendmsg+0x723/0xbe0
[  599.010085][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  599.010085][   T73]      ___sys_sendmsg+0xee/0x170
[  599.010085][   T73]      __sys_sendmsg+0xcd/0x170
[  599.010085][   T73]      do_syscall_64+0xc6/0x1e0
[  599.010085][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  599.010085][   T73] 
[  599.012172][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  599.012172][   T73]      netdev_get_by_index+0x5e/0x80
[  599.012172][   T73]      fib6_nh_init+0x3d8/0x1580
[  599.012172][   T73]      ip6_route_info_create+0xf18/0x17d0
[  599.012172][   T73]      ip6_route_add+0x1c/0x140
[  599.012172][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  599.012172][   T73]      addrconf_add_dev+0xe2/0x170
[  599.012172][   T73]      inet6_addr_add+0x12f/0xa40
[  599.012172][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  599.012172][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  599.012172][   T73]      netlink_rcv_skb+0x130/0x360
[  599.012172][   T73]      netlink_unicast+0x449/0x710
[  599.012172][   T73]      netlink_sendmsg+0x723/0xbe0
[  599.012172][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  599.012172][   T73]      ___sys_sendmsg+0xee/0x170
[  599.012172][   T73]      __sys_sendmsg+0xcd/0x170
[  599.012172][   T73]      do_syscall_64+0xc6/0x1e0
[  599.012172][   T73] 
[  599.014226][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  599.014226][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  599.014226][   T73]      ipv6_find_idev+0x102/0x170
[  599.014226][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  599.014226][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  599.014226][   T73]      netlink_rcv_skb+0x130/0x360
[  599.014226][   T73]      netlink_unicast+0x449/0x710
[  599.014226][   T73]      netlink_sendmsg+0x723/0xbe0
[  599.014226][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  599.014226][   T73]      ___sys_sendmsg+0xee/0x170
[  599.014226][   T73]      __sys_sendmsg+0xcd/0x170
[  599.014226][   T73]      do_syscall_64+0xc6/0x1e0
[  599.014226][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  599.014226][   T73] 
[  599.015898][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  599.015898][   T73]      neigh_parms_alloc+0x1e5/0x510
[  599.015898][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  599.015898][   T73]      ipv6_find_idev+0x102/0x170
[  599.015898][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  599.015898][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  599.015898][   T73]      netlink_rcv_skb+0x130/0x360
[  599.015898][   T73]      netlink_unicast+0x449/0x710
[  599.015898][   T73]      netlink_sendmsg+0x723/0xbe0
[  599.015898][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  599.015898][   T73]      ___sys_sendmsg+0xee/0x170
[  599.015898][   T73]      __sys_sendmsg+0xcd/0x170
[  599.015898][   T73]      do_syscall_64+0xc6/0x1e0
[  599.015898][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  599.015898][   T73] 
[  599.017608][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  599.017894][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  599.017894][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  599.017894][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  599.017894][   T73]      fib6_nh_init+0xa22/0x1580
[  599.017894][   T73]      ip6_route_info_create+0xf18/0x17d0
[  599.017894][   T73]      ip6_route_add+0x1c/0x140
[  599.017894][   T73]      inet6_rtm_newroute+0x104/0x110
[  599.017894][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  599.017894][   T73]      netlink_rcv_skb+0x130/0x360
[  599.017894][   T73]      netlink_unicast+0x449/0x710
[  599.017894][   T73]      netlink_sendmsg+0x723/0xbe0
[  599.017894][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  599.017894][   T73]      ___sys_sendmsg+0xee/0x170
[  599.017894][   T73]      __sys_sendmsg+0xcd/0x170
[  599.017894][   T73]      do_syscall_64+0xc6/0x1e0
[  599.017894][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  599.017894][   T73] 
[  599.019928][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  599.019928][   T73]      dst_init+0x84/0x4a0
[  599.019928][   T73]      dst_alloc+0x97/0x150
[  599.019928][   T73]      ip6_dst_alloc+0x23/0x90
[  599.019928][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  599.019928][   T73]      ip6_pol_route+0x56f/0x840
[  599.019928][   T73]      fib6_rule_lookup+0x456/0x630
[  599.019928][   T73]      ip6_route_input+0x59c/0xa50
[  599.019928][   T73]      ipv6_rcv+0x397/0x810
[  599.019928][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  599.019928][   T73]      process_backlog+0x101/0x620
[  599.019928][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  599.019928][   T73]      net_rx_action+0x495/0xbe0
[  599.019928][   T73]      __do_softirq+0x1b5/0x7f6
[  599.019928][   T73] 
[  599.021945][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  599.021945][   T73]      netdev_get_by_index+0x5e/0x80
[  599.021945][   T73]      fib6_nh_init+0x3d8/0x1580
[  599.021945][   T73]      ip6_route_info_create+0xf18/0x17d0
[  599.021945][   T73]      ip6_route_add+0x1c/0x140
[  599.021945][   T73]      addrconf_prefix_route+0x2a6/0x430
[  599.021945][   T73]      inet6_addr_add+0x4f8/0xa40
[  599.021945][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  599.021945][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  599.021945][   T73]      netlink_rcv_skb+0x130/0x360
[  599.021945][   T73]      netlink_unicast+0x449/0x710
[  599.021945][   T73]      netlink_sendmsg+0x723/0xbe0
[  599.021945][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  599.021945][   T73]      ___sys_sendmsg+0xee/0x170
[  599.021945][   T73]      __sys_sendmsg+0xcd/0x170
[  599.021945][   T73]      do_syscall_64+0xc6/0x1e0
[  599.021945][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  599.021945][   T73] 
[  599.024183][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  599.024183][   T73]      netdev_get_by_index+0x5e/0x80
[  599.024183][   T73]      fib6_nh_init+0x3d8/0x1580
[  599.024183][   T73]      ip6_route_info_create+0xf18/0x17d0
[  599.024183][   T73]      addrconf_f6i_alloc+0x315/0x560
[  599.024183][   T73]      ipv6_add_addr+0x411/0x2000
[  599.024183][   T73]      inet6_addr_add+0x30e/0xa40
[  599.024183][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  599.024183][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  599.024183][   T73]      netlink_rcv_skb+0x130/0x360
[  599.024183][   T73]      netlink_unicast+0x449/0x710
[  599.024183][   T73]      netlink_sendmsg+0x723/0xbe0
[  599.024183][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  599.024183][   T73]      ___sys_sendmsg+0xee/0x170
[  599.024183][   T73]      __sys_sendmsg+0xcd/0x170
[  599.024183][   T73]      do_syscall_64+0xc6/0x1e0
[  599.024183][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  599.024183][   T73] 
[  599.026910][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  599.026910][   T73]      netdev_get_by_index+0x5e/0x80
[  599.026910][   T73]      fib6_nh_init+0x3d8/0x1580
[  599.026910][   T73]      ip6_route_info_create+0xf18/0x17d0
[  599.026910][   T73]      ip6_route_add+0x1c/0x140
[  599.026910][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  599.026910][   T73]      addrconf_add_dev+0xe2/0x170
[  599.026910][   T73]      inet6_addr_add+0x12f/0xa40
[  599.026910][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  599.026910][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  599.026910][   T73]      netlink_rcv_skb+0x130/0x360
[  599.026910][   T73]      netlink_unicast+0x449/0x710
[  599.026910][   T73]      netlink_sendmsg+0x723/0xbe0
[  599.026910][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  599.026910][   T73]      ___sys_sendmsg+0xee/0x170
[  599.026910][   T73]      __sys_sendmsg+0xcd/0x170
[  599.026910][   T73]      do_syscall_64+0xc6/0x1e0
[  599.026910][   T73] 
[  599.030495][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  599.030495][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  599.030495][   T73]      ipv6_find_idev+0x102/0x170
[  599.030495][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  599.030495][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  599.030495][   T73]      netlink_rcv_skb+0x130/0x360
[  599.030495][   T73]      netlink_unicast+0x449/0x710
[  599.030495][   T73]      netlink_sendmsg+0x723/0xbe0
[  599.030495][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  599.030495][   T73]      ___sys_sendmsg+0xee/0x170
[  599.030495][   T73]      __sys_sendmsg+0xcd/0x170
[  599.030495][   T73]      do_syscall_64+0xc6/0x1e0
[  599.030495][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  599.030495][   T73] 
[  599.033095][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  599.033095][   T73]      neigh_parms_alloc+0x1e5/0x510
[  599.033095][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  599.033095][   T73]      ipv6_find_idev+0x102/0x170
[  599.033095][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  599.033095][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  599.033095][   T73]      netlink_rcv_skb+0x130/0x360
[  599.033095][   T73]      netlink_unicast+0x449/0x710
[  599.033095][   T73]      netlink_sendmsg+0x723/0xbe0
[  599.033095][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  599.033095][   T73]      ___sys_sendmsg+0xee/0x170
[  599.033095][   T73]      __sys_sendmsg+0xcd/0x170
[  599.033095][   T73]      do_syscall_64+0xc6/0x1e0
[  599.033095][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  599.033095][   T73] 
[  599.036035][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  599.036475][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  599.036475][   T73]      netdev_get_by_index+0x5e/0x80
[  599.036475][   T73]      fib6_nh_init+0x3d8/0x1580
[  599.036475][   T73]      ip6_route_info_create+0xf18/0x17d0
[  599.036475][   T73]      addrconf_f6i_alloc+0x265/0x560
[  599.036475][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  599.036475][   T73]      addrconf_join_anycast+0x1c0/0x220
[  599.036475][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  599.036475][   T73]      addrconf_dad_completed+0x12b/0xe20
[  599.036475][   T73]      addrconf_dad_begin+0x310/0x670
[  599.036475][   T73]      addrconf_dad_work+0x10b/0xab0
[  599.036475][   T73]      process_one_work+0x84d/0x18a0
[  599.036475][   T73]      worker_thread+0x587/0xd30
[  599.036475][   T73]      kthread+0x28a/0x350
[  599.036475][   T73]      ret_from_fork+0x31/0x70
[  599.036475][   T73]      ret_from_fork_asm+0x1a/0x30
[  599.036475][   T73] 
[  599.039578][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  599.039578][   T73]      netdev_get_by_index+0x5e/0x80
[  599.039578][   T73]      fib6_nh_init+0x3d8/0x1580
[  599.039578][   T73]      ip6_route_info_create+0xf18/0x17d0
[  599.039578][   T73]      ip6_route_add+0x1c/0x140
[  599.039578][   T73]      addrconf_prefix_route+0x2a6/0x430
[  599.039578][   T73]      inet6_addr_add+0x4f8/0xa40
[  599.039578][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  599.039578][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  599.039578][   T73]      netlink_rcv_skb+0x130/0x360
[  599.039578][   T73]      netlink_unicast+0x449/0x710
[  599.039578][   T73]      netlink_sendmsg+0x723/0xbe0
[  599.039578][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  599.039578][   T73]      ___sys_sendmsg+0xee/0x170
[  599.039578][   T73]      __sys_sendmsg+0xcd/0x170
[  599.039578][   T73]      do_syscall_64+0xc6/0x1e0
[  599.039578][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  599.039578][   T73] 
[  599.042759][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  599.042759][   T73]      netdev_get_by_index+0x5e/0x80
[  599.042759][   T73]      fib6_nh_init+0x3d8/0x1580
[  599.042759][   T73]      ip6_route_info_create+0xf18/0x17d0
[  599.042759][   T73]      addrconf_f6i_alloc+0x315/0x560
[  599.042759][   T73]      ipv6_add_addr+0x411/0x2000
[  599.042759][   T73]      inet6_addr_add+0x30e/0xa40
[  599.042759][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  599.042759][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  599.042759][   T73]      netlink_rcv_skb+0x130/0x360
[  599.042759][   T73]      netlink_unicast+0x449/0x710
[  599.042759][   T73]      netlink_sendmsg+0x723/0xbe0
[  599.042759][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  599.042759][   T73]      ___sys_sendmsg+0xee/0x170
[  599.042759][   T73]      __sys_sendmsg+0xcd/0x170
[  599.042759][   T73]      do_syscall_64+0xc6/0x1e0
[  599.042759][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  599.042759][   T73] 
[  599.046080][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  599.046080][   T73]      netdev_get_by_index+0x5e/0x80
[  599.046080][   T73]      fib6_nh_init+0x3d8/0x1580
[  599.046080][   T73]      ip6_route_info_create+0xf18/0x17d0
[  599.046080][   T73]      ip6_route_add+0x1c/0x140
[  599.046080][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  599.046080][   T73]      addrconf_add_dev+0xe2/0x170
[  599.046080][   T73]      inet6_addr_add+0x12f/0xa40
[  599.046080][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  599.046080][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  599.046080][   T73]      netlink_rcv_skb+0x130/0x360
[  599.046080][   T73]      netlink_unicast+0x449/0x710
[  599.046080][   T73]      netlink_sendmsg+0x723/0xbe0
[  599.046080][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  599.046080][   T73]      ___sys_sendmsg+0xee/0x170
[  599.046080][   T73]      __sys_sendmsg+0xcd/0x170
[  599.046080][   T73]      do_syscall_64+0xc6/0x1e0
[  599.046080][   T73] 
[  599.049229][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  599.049229][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  599.049229][   T73]      ipv6_find_idev+0x102/0x170
[  599.049229][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  599.049229][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  599.049229][   T73]      netlink_rcv_skb+0x130/0x360
[  599.049229][   T73]      netlink_unicast+0x449/0x710
[  599.049229][   T73]      netlink_sendmsg+0x723/0xbe0
[  599.049229][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  599.049229][   T73]      ___sys_sendmsg+0xee/0x170
[  599.049229][   T73]      __sys_sendmsg+0xcd/0x170
[  599.049229][   T73]      do_syscall_64+0xc6/0x1e0
[  599.049229][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  599.049229][   T73] 
[  599.051600][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  599.051600][   T73]      neigh_parms_alloc+0x1e5/0x510
[  599.051600][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  599.051600][   T73]      ipv6_find_idev+0x102/0x170
[  599.051600][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  599.051600][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  599.051600][   T73]      netlink_rcv_skb+0x130/0x360
[  599.051600][   T73]      netlink_unicast+0x449/0x710
[  599.051600][   T73]      netlink_sendmsg+0x723/0xbe0
[  599.051600][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  599.051600][   T73]      ___sys_sendmsg+0xee/0x170
[  599.051600][   T73]      __sys_sendmsg+0xcd/0x170
[  599.051600][   T73]      do_syscall_64+0xc6/0x1e0
[  599.051600][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  599.051600][   T73] 
[  609.335882][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  609.336516][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  609.336516][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  609.336516][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  609.336516][   T73]      fib6_nh_init+0xa22/0x1580
[  609.336516][   T73]      ip6_route_info_create+0xf18/0x17d0
[  609.336516][   T73]      ip6_route_add+0x1c/0x140
[  609.336516][   T73]      inet6_rtm_newroute+0x104/0x110
[  609.336516][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  609.336516][   T73]      netlink_rcv_skb+0x130/0x360
[  609.336516][   T73]      netlink_unicast+0x449/0x710
[  609.336516][   T73]      netlink_sendmsg+0x723/0xbe0
[  609.336516][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  609.336516][   T73]      ___sys_sendmsg+0xee/0x170
[  609.336516][   T73]      __sys_sendmsg+0xcd/0x170
[  609.336516][   T73]      do_syscall_64+0xc6/0x1e0
[  609.336516][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  609.336516][   T73] 
[  609.339676][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  609.339676][   T73]      dst_init+0x84/0x4a0
[  609.339676][   T73]      dst_alloc+0x97/0x150
[  609.339676][   T73]      ip6_dst_alloc+0x23/0x90
[  609.339676][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  609.339676][   T73]      ip6_pol_route+0x56f/0x840
[  609.339676][   T73]      fib6_rule_lookup+0x456/0x630
[  609.339676][   T73]      ip6_route_input+0x59c/0xa50
[  609.339676][   T73]      ipv6_rcv+0x397/0x810
[  609.339676][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  609.339676][   T73]      process_backlog+0x101/0x620
[  609.339676][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  609.339676][   T73]      net_rx_action+0x495/0xbe0
[  609.339676][   T73]      __do_softirq+0x1b5/0x7f6
[  609.339676][   T73] 
[  609.342585][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  609.342585][   T73]      netdev_get_by_index+0x5e/0x80
[  609.342585][   T73]      fib6_nh_init+0x3d8/0x1580
[  609.342585][   T73]      ip6_route_info_create+0xf18/0x17d0
[  609.342585][   T73]      ip6_route_add+0x1c/0x140
[  609.342585][   T73]      addrconf_prefix_route+0x2a6/0x430
[  609.342585][   T73]      inet6_addr_add+0x4f8/0xa40
[  609.342585][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  609.342585][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  609.342585][   T73]      netlink_rcv_skb+0x130/0x360
[  609.342585][   T73]      netlink_unicast+0x449/0x710
[  609.342585][   T73]      netlink_sendmsg+0x723/0xbe0
[  609.342585][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  609.342585][   T73]      ___sys_sendmsg+0xee/0x170
[  609.342585][   T73]      __sys_sendmsg+0xcd/0x170
[  609.342585][   T73]      do_syscall_64+0xc6/0x1e0
[  609.342585][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  609.342585][   T73] 
[  609.346124][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  609.346124][   T73]      netdev_get_by_index+0x5e/0x80
[  609.346124][   T73]      fib6_nh_init+0x3d8/0x1580
[  609.346124][   T73]      ip6_route_info_create+0xf18/0x17d0
[  609.346124][   T73]      addrconf_f6i_alloc+0x315/0x560
[  609.346124][   T73]      ipv6_add_addr+0x411/0x2000
[  609.346124][   T73]      inet6_addr_add+0x30e/0xa40
[  609.346124][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  609.346124][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  609.346124][   T73]      netlink_rcv_skb+0x130/0x360
[  609.346124][   T73]      netlink_unicast+0x449/0x710
[  609.346124][   T73]      netlink_sendmsg+0x723/0xbe0
[  609.346124][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  609.346124][   T73]      ___sys_sendmsg+0xee/0x170
[  609.346124][   T73]      __sys_sendmsg+0xcd/0x170
[  609.346124][   T73]      do_syscall_64+0xc6/0x1e0
[  609.346124][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  609.346124][   T73] 
[  609.349652][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  609.349652][   T73]      netdev_get_by_index+0x5e/0x80
[  609.349652][   T73]      fib6_nh_init+0x3d8/0x1580
[  609.349652][   T73]      ip6_route_info_create+0xf18/0x17d0
[  609.349652][   T73]      ip6_route_add+0x1c/0x140
[  609.349652][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  609.349652][   T73]      addrconf_add_dev+0xe2/0x170
[  609.349652][   T73]      inet6_addr_add+0x12f/0xa40
[  609.349652][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  609.349652][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  609.349652][   T73]      netlink_rcv_skb+0x130/0x360
[  609.349652][   T73]      netlink_unicast+0x449/0x710
[  609.349652][   T73]      netlink_sendmsg+0x723/0xbe0
[  609.349652][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  609.349652][   T73]      ___sys_sendmsg+0xee/0x170
[  609.349652][   T73]      __sys_sendmsg+0xcd/0x170
[  609.349652][   T73]      do_syscall_64+0xc6/0x1e0
[  609.349652][   T73] 
[  609.353196][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  609.353196][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  609.353196][   T73]      ipv6_find_idev+0x102/0x170
[  609.353196][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  609.353196][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  609.353196][   T73]      netlink_rcv_skb+0x130/0x360
[  609.353196][   T73]      netlink_unicast+0x449/0x710
[  609.353196][   T73]      netlink_sendmsg+0x723/0xbe0
[  609.353196][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  609.353196][   T73]      ___sys_sendmsg+0xee/0x170
[  609.353196][   T73]      __sys_sendmsg+0xcd/0x170
[  609.353196][   T73]      do_syscall_64+0xc6/0x1e0
[  609.353196][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  609.353196][   T73] 
[  609.355973][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  609.355973][   T73]      neigh_parms_alloc+0x1e5/0x510
[  609.355973][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  609.355973][   T73]      ipv6_find_idev+0x102/0x170
[  609.355973][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  609.355973][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  609.355973][   T73]      netlink_rcv_skb+0x130/0x360
[  609.355973][   T73]      netlink_unicast+0x449/0x710
[  609.355973][   T73]      netlink_sendmsg+0x723/0xbe0
[  609.355973][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  609.355973][   T73]      ___sys_sendmsg+0xee/0x170
[  609.355973][   T73]      __sys_sendmsg+0xcd/0x170
[  609.355973][   T73]      do_syscall_64+0xc6/0x1e0
[  609.355973][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  609.355973][   T73] 
[  609.359003][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  609.359482][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  609.359482][   T73]      netdev_get_by_index+0x5e/0x80
[  609.359482][   T73]      fib6_nh_init+0x3d8/0x1580
[  609.359482][   T73]      ip6_route_info_create+0xf18/0x17d0
[  609.359482][   T73]      addrconf_f6i_alloc+0x265/0x560
[  609.359482][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  609.359482][   T73]      addrconf_join_anycast+0x1c0/0x220
[  609.359482][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  609.359482][   T73]      addrconf_dad_completed+0x12b/0xe20
[  609.359482][   T73]      addrconf_dad_begin+0x310/0x670
[  609.359482][   T73]      addrconf_dad_work+0x10b/0xab0
[  609.359482][   T73]      process_one_work+0x84d/0x18a0
[  609.359482][   T73]      worker_thread+0x587/0xd30
[  609.359482][   T73]      kthread+0x28a/0x350
[  609.359482][   T73]      ret_from_fork+0x31/0x70
[  609.359482][   T73]      ret_from_fork_asm+0x1a/0x30
[  609.359482][   T73] 
[  609.362858][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  609.362858][   T73]      netdev_get_by_index+0x5e/0x80
[  609.362858][   T73]      fib6_nh_init+0x3d8/0x1580
[  609.362858][   T73]      ip6_route_info_create+0xf18/0x17d0
[  609.362858][   T73]      ip6_route_add+0x1c/0x140
[  609.362858][   T73]      addrconf_prefix_route+0x2a6/0x430
[  609.362858][   T73]      inet6_addr_add+0x4f8/0xa40
[  609.362858][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  609.362858][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  609.362858][   T73]      netlink_rcv_skb+0x130/0x360
[  609.362858][   T73]      netlink_unicast+0x449/0x710
[  609.362858][   T73]      netlink_sendmsg+0x723/0xbe0
[  609.362858][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  609.362858][   T73]      ___sys_sendmsg+0xee/0x170
[  609.362858][   T73]      __sys_sendmsg+0xcd/0x170
[  609.362858][   T73]      do_syscall_64+0xc6/0x1e0
[  609.362858][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  609.362858][   T73] 
[  609.366353][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  609.366353][   T73]      netdev_get_by_index+0x5e/0x80
[  609.366353][   T73]      fib6_nh_init+0x3d8/0x1580
[  609.366353][   T73]      ip6_route_info_create+0xf18/0x17d0
[  609.366353][   T73]      addrconf_f6i_alloc+0x315/0x560
[  609.366353][   T73]      ipv6_add_addr+0x411/0x2000
[  609.366353][   T73]      inet6_addr_add+0x30e/0xa40
[  609.366353][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  609.366353][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  609.366353][   T73]      netlink_rcv_skb+0x130/0x360
[  609.366353][   T73]      netlink_unicast+0x449/0x710
[  609.366353][   T73]      netlink_sendmsg+0x723/0xbe0
[  609.366353][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  609.366353][   T73]      ___sys_sendmsg+0xee/0x170
[  609.366353][   T73]      __sys_sendmsg+0xcd/0x170
[  609.366353][   T73]      do_syscall_64+0xc6/0x1e0
[  609.366353][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  609.366353][   T73] 
[  609.369853][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  609.369853][   T73]      netdev_get_by_index+0x5e/0x80
[  609.369853][   T73]      fib6_nh_init+0x3d8/0x1580
[  609.369853][   T73]      ip6_route_info_create+0xf18/0x17d0
[  609.369853][   T73]      ip6_route_add+0x1c/0x140
[  609.369853][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  609.369853][   T73]      addrconf_add_dev+0xe2/0x170
[  609.369853][   T73]      inet6_addr_add+0x12f/0xa40
[  609.369853][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  609.369853][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  609.369853][   T73]      netlink_rcv_skb+0x130/0x360
[  609.369853][   T73]      netlink_unicast+0x449/0x710
[  609.369853][   T73]      netlink_sendmsg+0x723/0xbe0
[  609.369853][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  609.369853][   T73]      ___sys_sendmsg+0xee/0x170
[  609.369853][   T73]      __sys_sendmsg+0xcd/0x170
[  609.369853][   T73]      do_syscall_64+0xc6/0x1e0
[  609.369853][   T73] 
[  609.373717][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  609.373717][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  609.373717][   T73]      ipv6_find_idev+0x102/0x170
[  609.373717][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  609.373717][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  609.373717][   T73]      netlink_rcv_skb+0x130/0x360
[  609.373717][   T73]      netlink_unicast+0x449/0x710
[  609.373717][   T73]      netlink_sendmsg+0x723/0xbe0
[  609.373717][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  609.373717][   T73]      ___sys_sendmsg+0xee/0x170
[  609.373717][   T73]      __sys_sendmsg+0xcd/0x170
[  609.373717][   T73]      do_syscall_64+0xc6/0x1e0
[  609.373717][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  609.373717][   T73] 
[  609.376422][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  609.376422][   T73]      neigh_parms_alloc+0x1e5/0x510
[  609.376422][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  609.376422][   T73]      ipv6_find_idev+0x102/0x170
[  609.376422][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  609.376422][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  609.376422][   T73]      netlink_rcv_skb+0x130/0x360
[  609.376422][   T73]      netlink_unicast+0x449/0x710
[  609.376422][   T73]      netlink_sendmsg+0x723/0xbe0
[  609.376422][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  609.376422][   T73]      ___sys_sendmsg+0xee/0x170
[  609.376422][   T73]      __sys_sendmsg+0xcd/0x170
[  609.376422][   T73]      do_syscall_64+0xc6/0x1e0
[  609.376422][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  609.376422][   T73] 
[  609.379575][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  609.380096][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  609.380096][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  609.380096][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  609.380096][   T73]      fib6_nh_init+0xa22/0x1580
[  609.380096][   T73]      ip6_route_info_create+0xf18/0x17d0
[  609.380096][   T73]      ip6_route_add+0x1c/0x140
[  609.380096][   T73]      inet6_rtm_newroute+0x104/0x110
[  609.380096][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  609.380096][   T73]      netlink_rcv_skb+0x130/0x360
[  609.380096][   T73]      netlink_unicast+0x449/0x710
[  609.380096][   T73]      netlink_sendmsg+0x723/0xbe0
[  609.380096][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  609.380096][   T73]      ___sys_sendmsg+0xee/0x170
[  609.380096][   T73]      __sys_sendmsg+0xcd/0x170
[  609.380096][   T73]      do_syscall_64+0xc6/0x1e0
[  609.380096][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  609.380096][   T73] 
[  609.383754][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  609.383754][   T73]      dst_init+0x84/0x4a0
[  609.383754][   T73]      dst_alloc+0x97/0x150
[  609.383754][   T73]      ip6_dst_alloc+0x23/0x90
[  609.383754][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  609.383754][   T73]      ip6_pol_route+0x56f/0x840
[  609.383754][   T73]      fib6_rule_lookup+0x456/0x630
[  609.383754][   T73]      ip6_route_input+0x59c/0xa50
[  609.383754][   T73]      ipv6_rcv+0x397/0x810
[  609.383754][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  609.383754][   T73]      process_backlog+0x101/0x620
[  609.383754][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  609.383754][   T73]      net_rx_action+0x495/0xbe0
[  609.383754][   T73]      __do_softirq+0x1b5/0x7f6
[  609.383754][   T73] 
[  609.387306][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  609.387306][   T73]      netdev_get_by_index+0x5e/0x80
[  609.387306][   T73]      fib6_nh_init+0x3d8/0x1580
[  609.387306][   T73]      ip6_route_info_create+0xf18/0x17d0
[  609.387306][   T73]      ip6_route_add+0x1c/0x140
[  609.387306][   T73]      addrconf_prefix_route+0x2a6/0x430
[  609.387306][   T73]      inet6_addr_add+0x4f8/0xa40
[  609.387306][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  609.387306][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  609.387306][   T73]      netlink_rcv_skb+0x130/0x360
[  609.387306][   T73]      netlink_unicast+0x449/0x710
[  609.387306][   T73]      netlink_sendmsg+0x723/0xbe0
[  609.387306][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  609.387306][   T73]      ___sys_sendmsg+0xee/0x170
[  609.387306][   T73]      __sys_sendmsg+0xcd/0x170
[  609.387306][   T73]      do_syscall_64+0xc6/0x1e0
[  609.387306][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  609.387306][   T73] 
[  609.391228][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  609.391228][   T73]      netdev_get_by_index+0x5e/0x80
[  609.391228][   T73]      fib6_nh_init+0x3d8/0x1580
[  609.391228][   T73]      ip6_route_info_create+0xf18/0x17d0
[  609.391228][   T73]      addrconf_f6i_alloc+0x315/0x560
[  609.391228][   T73]      ipv6_add_addr+0x411/0x2000
[  609.391228][   T73]      inet6_addr_add+0x30e/0xa40
[  609.391228][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  609.391228][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  609.391228][   T73]      netlink_rcv_skb+0x130/0x360
[  609.391228][   T73]      netlink_unicast+0x449/0x710
[  609.391228][   T73]      netlink_sendmsg+0x723/0xbe0
[  609.391228][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  609.391228][   T73]      ___sys_sendmsg+0xee/0x170
[  609.391228][   T73]      __sys_sendmsg+0xcd/0x170
[  609.391228][   T73]      do_syscall_64+0xc6/0x1e0
[  609.391228][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  609.391228][   T73] 
[  609.395663][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  609.395663][   T73]      netdev_get_by_index+0x5e/0x80
[  609.395663][   T73]      fib6_nh_init+0x3d8/0x1580
[  609.395663][   T73]      ip6_route_info_create+0xf18/0x17d0
[  609.395663][   T73]      ip6_route_add+0x1c/0x140
[  609.395663][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  609.395663][   T73]      addrconf_add_dev+0xe2/0x170
[  609.395663][   T73]      inet6_addr_add+0x12f/0xa40
[  609.395663][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  609.395663][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  609.395663][   T73]      netlink_rcv_skb+0x130/0x360
[  609.395663][   T73]      netlink_unicast+0x449/0x710
[  609.395663][   T73]      netlink_sendmsg+0x723/0xbe0
[  609.395663][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  609.395663][   T73]      ___sys_sendmsg+0xee/0x170
[  609.395663][   T73]      __sys_sendmsg+0xcd/0x170
[  609.395663][   T73]      do_syscall_64+0xc6/0x1e0
[  609.395663][   T73] 
[  609.400012][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  609.400012][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  609.400012][   T73]      ipv6_find_idev+0x102/0x170
[  609.400012][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  609.400012][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  609.400012][   T73]      netlink_rcv_skb+0x130/0x360
[  609.400012][   T73]      netlink_unicast+0x449/0x710
[  609.400012][   T73]      netlink_sendmsg+0x723/0xbe0
[  609.400012][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  609.400012][   T73]      ___sys_sendmsg+0xee/0x170
[  609.400012][   T73]      __sys_sendmsg+0xcd/0x170
[  609.400012][   T73]      do_syscall_64+0xc6/0x1e0
[  609.400012][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  609.400012][   T73] 
[  609.403214][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  609.403214][   T73]      neigh_parms_alloc+0x1e5/0x510
[  609.403214][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  609.403214][   T73]      ipv6_find_idev+0x102/0x170
[  609.403214][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  609.403214][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  609.403214][   T73]      netlink_rcv_skb+0x130/0x360
[  609.403214][   T73]      netlink_unicast+0x449/0x710
[  609.403214][   T73]      netlink_sendmsg+0x723/0xbe0
[  609.403214][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  609.403214][   T73]      ___sys_sendmsg+0xee/0x170
[  609.403214][   T73]      __sys_sendmsg+0xcd/0x170
[  609.403214][   T73]      do_syscall_64+0xc6/0x1e0
[  609.403214][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  609.403214][   T73] 
[  609.406601][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  609.407331][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  609.407331][   T73]      netdev_get_by_index+0x5e/0x80
[  609.407331][   T73]      fib6_nh_init+0x3d8/0x1580
[  609.407331][   T73]      ip6_route_info_create+0xf18/0x17d0
[  609.407331][   T73]      addrconf_f6i_alloc+0x265/0x560
[  609.407331][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  609.407331][   T73]      addrconf_join_anycast+0x1c0/0x220
[  609.407331][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  609.407331][   T73]      addrconf_dad_completed+0x12b/0xe20
[  609.407331][   T73]      addrconf_dad_begin+0x310/0x670
[  609.407331][   T73]      addrconf_dad_work+0x10b/0xab0
[  609.407331][   T73]      process_one_work+0x84d/0x18a0
[  609.407331][   T73]      worker_thread+0x587/0xd30
[  609.407331][   T73]      kthread+0x28a/0x350
[  609.407331][   T73]      ret_from_fork+0x31/0x70
[  609.407331][   T73]      ret_from_fork_asm+0x1a/0x30
[  609.407331][   T73] 
[  609.411015][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  609.411015][   T73]      netdev_get_by_index+0x5e/0x80
[  609.411015][   T73]      fib6_nh_init+0x3d8/0x1580
[  609.411015][   T73]      ip6_route_info_create+0xf18/0x17d0
[  609.411015][   T73]      ip6_route_add+0x1c/0x140
[  609.411015][   T73]      addrconf_prefix_route+0x2a6/0x430
[  609.411015][   T73]      inet6_addr_add+0x4f8/0xa40
[  609.411015][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  609.411015][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  609.411015][   T73]      netlink_rcv_skb+0x130/0x360
[  609.411015][   T73]      netlink_unicast+0x449/0x710
[  609.411015][   T73]      netlink_sendmsg+0x723/0xbe0
[  609.411015][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  609.411015][   T73]      ___sys_sendmsg+0xee/0x170
[  609.411015][   T73]      __sys_sendmsg+0xcd/0x170
[  609.411015][   T73]      do_syscall_64+0xc6/0x1e0
[  609.411015][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  609.411015][   T73] 
[  609.414847][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  609.414847][   T73]      netdev_get_by_index+0x5e/0x80
[  609.414847][   T73]      fib6_nh_init+0x3d8/0x1580
[  609.414847][   T73]      ip6_route_info_create+0xf18/0x17d0
[  609.414847][   T73]      addrconf_f6i_alloc+0x315/0x560
[  609.414847][   T73]      ipv6_add_addr+0x411/0x2000
[  609.414847][   T73]      inet6_addr_add+0x30e/0xa40
[  609.414847][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  609.414847][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  609.414847][   T73]      netlink_rcv_skb+0x130/0x360
[  609.414847][   T73]      netlink_unicast+0x449/0x710
[  609.414847][   T73]      netlink_sendmsg+0x723/0xbe0
[  609.414847][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  609.414847][   T73]      ___sys_sendmsg+0xee/0x170
[  609.414847][   T73]      __sys_sendmsg+0xcd/0x170
[  609.414847][   T73]      do_syscall_64+0xc6/0x1e0
[  609.414847][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  609.414847][   T73] 
[  609.419007][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  609.419007][   T73]      netdev_get_by_index+0x5e/0x80
[  609.419007][   T73]      fib6_nh_init+0x3d8/0x1580
[  609.419007][   T73]      ip6_route_info_create+0xf18/0x17d0
[  609.419007][   T73]      ip6_route_add+0x1c/0x140
[  609.419007][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  609.419007][   T73]      addrconf_add_dev+0xe2/0x170
[  609.419007][   T73]      inet6_addr_add+0x12f/0xa40
[  609.419007][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  609.419007][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  609.419007][   T73]      netlink_rcv_skb+0x130/0x360
[  609.419007][   T73]      netlink_unicast+0x449/0x710
[  609.419007][   T73]      netlink_sendmsg+0x723/0xbe0
[  609.419007][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  609.419007][   T73]      ___sys_sendmsg+0xee/0x170
[  609.419007][   T73]      __sys_sendmsg+0xcd/0x170
[  609.419007][   T73]      do_syscall_64+0xc6/0x1e0
[  609.419007][   T73] 
[  609.423206][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  609.423206][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  609.423206][   T73]      ipv6_find_idev+0x102/0x170
[  609.423206][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  609.423206][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  609.423206][   T73]      netlink_rcv_skb+0x130/0x360
[  609.423206][   T73]      netlink_unicast+0x449/0x710
[  609.423206][   T73]      netlink_sendmsg+0x723/0xbe0
[  609.423206][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  609.423206][   T73]      ___sys_sendmsg+0xee/0x170
[  609.423206][   T73]      __sys_sendmsg+0xcd/0x170
[  609.423206][   T73]      do_syscall_64+0xc6/0x1e0
[  609.423206][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  609.423206][   T73] 
[  609.426344][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  609.426344][   T73]      neigh_parms_alloc+0x1e5/0x510
[  609.426344][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  609.426344][   T73]      ipv6_find_idev+0x102/0x170
[  609.426344][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  609.426344][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  609.426344][   T73]      netlink_rcv_skb+0x130/0x360
[  609.426344][   T73]      netlink_unicast+0x449/0x710
[  609.426344][   T73]      netlink_sendmsg+0x723/0xbe0
[  609.426344][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  609.426344][   T73]      ___sys_sendmsg+0xee/0x170
[  609.426344][   T73]      __sys_sendmsg+0xcd/0x170
[  609.426344][   T73]      do_syscall_64+0xc6/0x1e0
[  609.426344][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  609.426344][   T73] 
[  615.719779][   T42] INFO: task modprobe:885 blocked for more than 368 seconds.
[  615.720123][   T42]       Not tainted 6.8.0-virtme #1
[  615.720262][   T42] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  615.720494][   T42] task:modprobe        state:D stack:25856 pid:885   tgid:885   ppid:39     flags:0x00004002
[  615.720842][   T42] Call Trace:
[  615.720951][   T42]  <TASK>
[  615.721034][   T42]  __schedule+0x705/0x1ac0
[  615.721204][   T42]  ? __pfx___schedule+0x10/0x10
[  615.721370][   T42]  ? schedule+0x1a5/0x210
[  615.721504][   T42]  ? __pfx_lock_acquire.part.0+0x10/0x10
[  615.721677][   T42]  ? mark_lock+0x38/0x3e0
[  615.721801][   T42]  ? do_raw_spin_lock+0x131/0x270
[  615.721959][   T42]  ? schedule+0x1a5/0x210
[  615.722080][   T42]  schedule+0xdf/0x210
[  615.722198][   T42]  schedule_preempt_disabled+0x15/0x30
[  615.722382][   T42]  rwsem_down_write_slowpath+0x3af/0xab0
[  615.722547][   T42]  ? __pfx_rwsem_down_write_slowpath+0x10/0x10
[  615.722754][   T42]  ? __pfx_lock_acquire.part.0+0x10/0x10
[  615.722918][   T42]  ? lock_acquire+0x1c1/0x220
[  615.723058][   T42]  ? register_pernet_subsys+0x1a/0x50
[  615.723236][   T42]  down_write+0x1c9/0x200
[  615.723346][   T42]  ? __pfx_down_write+0x10/0x10
[  615.723487][   T42]  ? __lock_release+0x103/0x460
[  615.723655][   T42]  ? __create_object+0x5e/0xb0
[  615.723796][   T42]  ? __pfx___lock_release+0x10/0x10
[  615.723956][   T42]  register_pernet_subsys+0x1a/0x50
[  615.724097][   T42]  tcf_register_action+0xa3/0x600
[  615.724252][   T42]  ? __pfx_pedit_init_module+0x10/0x10 [act_pedit]
[  615.724436][   T42]  do_one_initcall+0xc8/0x3f0
[  615.724583][   T42]  ? __pfx_do_one_initcall+0x10/0x10
[  615.724736][   T42]  ? __create_object+0x5e/0xb0
[  615.724890][   T42]  ? kasan_unpoison+0x27/0x60
[  615.725035][   T42]  do_init_module+0x233/0x740
[  615.725192][   T42]  load_module+0x16b5/0x2350
[  615.725374][   T42]  ? __pfx_load_module+0x10/0x10
[  615.725517][   T42]  ? kernel_read_file+0x3d2/0x520
[  615.725709][   T42]  ? kernel_read_file+0x300/0x520
[  615.725859][   T42]  ? __pfx_kernel_read_file+0x10/0x10
[  615.726018][   T42]  ? init_module_from_file+0xd2/0x130
[  615.726156][   T42]  init_module_from_file+0xd2/0x130
[  615.726332][   T42]  ? __pfx_init_module_from_file+0x10/0x10
[  615.726507][   T42]  ? __lock_release+0x103/0x460
[  615.726685][   T42]  ? idempotent_init_module+0x32a/0x620
[  615.726838][   T42]  ? idempotent_init_module+0x32a/0x620
[  615.726977][   T42]  ? do_raw_spin_unlock+0x58/0x220
[  615.727119][   T42]  idempotent_init_module+0x342/0x620
[  615.727275][   T42]  ? __pfx_idempotent_init_module+0x10/0x10
[  615.727469][   T42]  __x64_sys_finit_module+0xbe/0x130
[  615.727609][   T42]  do_syscall_64+0xc6/0x1e0
[  615.727767][   T42]  entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  615.727945][   T42] RIP: 0033:0x7f505b1e4e5d
[  615.728090][   T42] RSP: 002b:00007ffe4f186f28 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[  615.728306][   T42] RAX: ffffffffffffffda RBX: 000055ce7b6ccc80 RCX: 00007f505b1e4e5d
[  615.728514][   T42] RDX: 0000000000000000 RSI: 000055ce5e14da2a RDI: 0000000000000000
[  615.728724][   T42] RBP: 0000000000040000 R08: 0000000000000000 R09: 00007ffe4f187060
[  615.728928][   T42] R10: 0000000000000000 R11: 0000000000000246 R12: 000055ce5e14da2a
[  615.729137][   T42] R13: 000055ce7b6ccac0 R14: 000055ce7b6cd0b0 R15: 000055ce7b6cccf2
[  615.729358][   T42]  </TASK>
[  615.729466][   T42] 
[  615.729466][   T42] Showing all locks held in the system:
[  615.729706][   T42] 2 locks held by kworker/u20:0/39:
[  615.729846][   T42]  #0: ffff888001161d48 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0
[  615.730132][   T42]  #1: ffffc900002c7da0 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0
[  615.730447][   T42] 1 lock held by khungtaskd/42:
[  615.730579][   T42]  #0: ffffffffaf7591e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x350
[  615.730841][   T42] 3 locks held by kworker/u16:1/73:
[  615.730978][   T42]  #0: ffff88800190a948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0
[  615.731265][   T42]  #1: ffffc900004efda0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0
[  615.731508][   T42]  #2: ffffffffaff6a1d0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xbc/0xb60
[  615.731774][   T42] 1 lock held by modprobe/885:
[  615.731910][   T42]  #0: ffffffffaff6a1d0 (pernet_ops_rwsem){++++}-{3:3}, at: register_pernet_subsys+0x1a/0x50
[  615.732186][   T42] 
[  615.732268][   T42] =============================================
[  615.732268][   T42] 
[  619.455741][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  619.456262][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  619.456262][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  619.456262][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  619.456262][   T73]      fib6_nh_init+0xa22/0x1580
[  619.456262][   T73]      ip6_route_info_create+0xf18/0x17d0
[  619.456262][   T73]      ip6_route_add+0x1c/0x140
[  619.456262][   T73]      inet6_rtm_newroute+0x104/0x110
[  619.456262][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  619.456262][   T73]      netlink_rcv_skb+0x130/0x360
[  619.456262][   T73]      netlink_unicast+0x449/0x710
[  619.456262][   T73]      netlink_sendmsg+0x723/0xbe0
[  619.456262][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  619.456262][   T73]      ___sys_sendmsg+0xee/0x170
[  619.456262][   T73]      __sys_sendmsg+0xcd/0x170
[  619.456262][   T73]      do_syscall_64+0xc6/0x1e0
[  619.456262][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  619.456262][   T73] 
[  619.458395][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  619.458395][   T73]      dst_init+0x84/0x4a0
[  619.458395][   T73]      dst_alloc+0x97/0x150
[  619.458395][   T73]      ip6_dst_alloc+0x23/0x90
[  619.458395][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  619.458395][   T73]      ip6_pol_route+0x56f/0x840
[  619.458395][   T73]      fib6_rule_lookup+0x456/0x630
[  619.458395][   T73]      ip6_route_input+0x59c/0xa50
[  619.458395][   T73]      ipv6_rcv+0x397/0x810
[  619.458395][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  619.458395][   T73]      process_backlog+0x101/0x620
[  619.458395][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  619.458395][   T73]      net_rx_action+0x495/0xbe0
[  619.458395][   T73]      __do_softirq+0x1b5/0x7f6
[  619.458395][   T73] 
[  619.460226][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  619.460226][   T73]      netdev_get_by_index+0x5e/0x80
[  619.460226][   T73]      fib6_nh_init+0x3d8/0x1580
[  619.460226][   T73]      ip6_route_info_create+0xf18/0x17d0
[  619.460226][   T73]      ip6_route_add+0x1c/0x140
[  619.460226][   T73]      addrconf_prefix_route+0x2a6/0x430
[  619.460226][   T73]      inet6_addr_add+0x4f8/0xa40
[  619.460226][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  619.460226][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  619.460226][   T73]      netlink_rcv_skb+0x130/0x360
[  619.460226][   T73]      netlink_unicast+0x449/0x710
[  619.460226][   T73]      netlink_sendmsg+0x723/0xbe0
[  619.460226][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  619.460226][   T73]      ___sys_sendmsg+0xee/0x170
[  619.460226][   T73]      __sys_sendmsg+0xcd/0x170
[  619.460226][   T73]      do_syscall_64+0xc6/0x1e0
[  619.460226][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  619.460226][   T73] 
[  619.462472][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  619.462472][   T73]      netdev_get_by_index+0x5e/0x80
[  619.462472][   T73]      fib6_nh_init+0x3d8/0x1580
[  619.462472][   T73]      ip6_route_info_create+0xf18/0x17d0
[  619.462472][   T73]      addrconf_f6i_alloc+0x315/0x560
[  619.462472][   T73]      ipv6_add_addr+0x411/0x2000
[  619.462472][   T73]      inet6_addr_add+0x30e/0xa40
[  619.462472][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  619.462472][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  619.462472][   T73]      netlink_rcv_skb+0x130/0x360
[  619.462472][   T73]      netlink_unicast+0x449/0x710
[  619.462472][   T73]      netlink_sendmsg+0x723/0xbe0
[  619.462472][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  619.462472][   T73]      ___sys_sendmsg+0xee/0x170
[  619.462472][   T73]      __sys_sendmsg+0xcd/0x170
[  619.462472][   T73]      do_syscall_64+0xc6/0x1e0
[  619.462472][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  619.462472][   T73] 
[  619.464715][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  619.464715][   T73]      netdev_get_by_index+0x5e/0x80
[  619.464715][   T73]      fib6_nh_init+0x3d8/0x1580
[  619.464715][   T73]      ip6_route_info_create+0xf18/0x17d0
[  619.464715][   T73]      ip6_route_add+0x1c/0x140
[  619.464715][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  619.464715][   T73]      addrconf_add_dev+0xe2/0x170
[  619.464715][   T73]      inet6_addr_add+0x12f/0xa40
[  619.464715][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  619.464715][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  619.464715][   T73]      netlink_rcv_skb+0x130/0x360
[  619.464715][   T73]      netlink_unicast+0x449/0x710
[  619.464715][   T73]      netlink_sendmsg+0x723/0xbe0
[  619.464715][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  619.464715][   T73]      ___sys_sendmsg+0xee/0x170
[  619.464715][   T73]      __sys_sendmsg+0xcd/0x170
[  619.464715][   T73]      do_syscall_64+0xc6/0x1e0
[  619.464715][   T73] 
[  619.466914][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  619.466914][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  619.466914][   T73]      ipv6_find_idev+0x102/0x170
[  619.466914][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  619.466914][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  619.466914][   T73]      netlink_rcv_skb+0x130/0x360
[  619.466914][   T73]      netlink_unicast+0x449/0x710
[  619.466914][   T73]      netlink_sendmsg+0x723/0xbe0
[  619.466914][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  619.466914][   T73]      ___sys_sendmsg+0xee/0x170
[  619.466914][   T73]      __sys_sendmsg+0xcd/0x170
[  619.466914][   T73]      do_syscall_64+0xc6/0x1e0
[  619.466914][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  619.466914][   T73] 
[  619.468637][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  619.468637][   T73]      neigh_parms_alloc+0x1e5/0x510
[  619.468637][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  619.468637][   T73]      ipv6_find_idev+0x102/0x170
[  619.468637][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  619.468637][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  619.468637][   T73]      netlink_rcv_skb+0x130/0x360
[  619.468637][   T73]      netlink_unicast+0x449/0x710
[  619.468637][   T73]      netlink_sendmsg+0x723/0xbe0
[  619.468637][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  619.468637][   T73]      ___sys_sendmsg+0xee/0x170
[  619.468637][   T73]      __sys_sendmsg+0xcd/0x170
[  619.468637][   T73]      do_syscall_64+0xc6/0x1e0
[  619.468637][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  619.468637][   T73] 
[  619.470542][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  619.470862][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  619.470862][   T73]      netdev_get_by_index+0x5e/0x80
[  619.470862][   T73]      fib6_nh_init+0x3d8/0x1580
[  619.470862][   T73]      ip6_route_info_create+0xf18/0x17d0
[  619.470862][   T73]      addrconf_f6i_alloc+0x265/0x560
[  619.470862][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  619.470862][   T73]      addrconf_join_anycast+0x1c0/0x220
[  619.470862][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  619.470862][   T73]      addrconf_dad_completed+0x12b/0xe20
[  619.470862][   T73]      addrconf_dad_begin+0x310/0x670
[  619.470862][   T73]      addrconf_dad_work+0x10b/0xab0
[  619.470862][   T73]      process_one_work+0x84d/0x18a0
[  619.470862][   T73]      worker_thread+0x587/0xd30
[  619.470862][   T73]      kthread+0x28a/0x350
[  619.470862][   T73]      ret_from_fork+0x31/0x70
[  619.470862][   T73]      ret_from_fork_asm+0x1a/0x30
[  619.470862][   T73] 
[  619.473021][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  619.473021][   T73]      netdev_get_by_index+0x5e/0x80
[  619.473021][   T73]      fib6_nh_init+0x3d8/0x1580
[  619.473021][   T73]      ip6_route_info_create+0xf18/0x17d0
[  619.473021][   T73]      ip6_route_add+0x1c/0x140
[  619.473021][   T73]      addrconf_prefix_route+0x2a6/0x430
[  619.473021][   T73]      inet6_addr_add+0x4f8/0xa40
[  619.473021][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  619.473021][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  619.473021][   T73]      netlink_rcv_skb+0x130/0x360
[  619.473021][   T73]      netlink_unicast+0x449/0x710
[  619.473021][   T73]      netlink_sendmsg+0x723/0xbe0
[  619.473021][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  619.473021][   T73]      ___sys_sendmsg+0xee/0x170
[  619.473021][   T73]      __sys_sendmsg+0xcd/0x170
[  619.473021][   T73]      do_syscall_64+0xc6/0x1e0
[  619.473021][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  619.473021][   T73] 
[  619.475258][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  619.475258][   T73]      netdev_get_by_index+0x5e/0x80
[  619.475258][   T73]      fib6_nh_init+0x3d8/0x1580
[  619.475258][   T73]      ip6_route_info_create+0xf18/0x17d0
[  619.475258][   T73]      addrconf_f6i_alloc+0x315/0x560
[  619.475258][   T73]      ipv6_add_addr+0x411/0x2000
[  619.475258][   T73]      inet6_addr_add+0x30e/0xa40
[  619.475258][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  619.475258][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  619.475258][   T73]      netlink_rcv_skb+0x130/0x360
[  619.475258][   T73]      netlink_unicast+0x449/0x710
[  619.475258][   T73]      netlink_sendmsg+0x723/0xbe0
[  619.475258][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  619.475258][   T73]      ___sys_sendmsg+0xee/0x170
[  619.475258][   T73]      __sys_sendmsg+0xcd/0x170
[  619.475258][   T73]      do_syscall_64+0xc6/0x1e0
[  619.475258][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  619.475258][   T73] 
[  619.477527][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  619.477527][   T73]      netdev_get_by_index+0x5e/0x80
[  619.477527][   T73]      fib6_nh_init+0x3d8/0x1580
[  619.477527][   T73]      ip6_route_info_create+0xf18/0x17d0
[  619.477527][   T73]      ip6_route_add+0x1c/0x140
[  619.477527][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  619.477527][   T73]      addrconf_add_dev+0xe2/0x170
[  619.477527][   T73]      inet6_addr_add+0x12f/0xa40
[  619.477527][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  619.477527][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  619.477527][   T73]      netlink_rcv_skb+0x130/0x360
[  619.477527][   T73]      netlink_unicast+0x449/0x710
[  619.477527][   T73]      netlink_sendmsg+0x723/0xbe0
[  619.477527][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  619.477527][   T73]      ___sys_sendmsg+0xee/0x170
[  619.477527][   T73]      __sys_sendmsg+0xcd/0x170
[  619.477527][   T73]      do_syscall_64+0xc6/0x1e0
[  619.477527][   T73] 
[  619.479726][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  619.479726][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  619.479726][   T73]      ipv6_find_idev+0x102/0x170
[  619.479726][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  619.479726][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  619.479726][   T73]      netlink_rcv_skb+0x130/0x360
[  619.479726][   T73]      netlink_unicast+0x449/0x710
[  619.479726][   T73]      netlink_sendmsg+0x723/0xbe0
[  619.479726][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  619.479726][   T73]      ___sys_sendmsg+0xee/0x170
[  619.479726][   T73]      __sys_sendmsg+0xcd/0x170
[  619.479726][   T73]      do_syscall_64+0xc6/0x1e0
[  619.479726][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  619.479726][   T73] 
[  619.481455][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  619.481455][   T73]      neigh_parms_alloc+0x1e5/0x510
[  619.481455][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  619.481455][   T73]      ipv6_find_idev+0x102/0x170
[  619.481455][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  619.481455][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  619.481455][   T73]      netlink_rcv_skb+0x130/0x360
[  619.481455][   T73]      netlink_unicast+0x449/0x710
[  619.481455][   T73]      netlink_sendmsg+0x723/0xbe0
[  619.481455][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  619.481455][   T73]      ___sys_sendmsg+0xee/0x170
[  619.481455][   T73]      __sys_sendmsg+0xcd/0x170
[  619.481455][   T73]      do_syscall_64+0xc6/0x1e0
[  619.481455][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  619.481455][   T73] 
[  619.483369][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  619.483665][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  619.483665][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  619.483665][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  619.483665][   T73]      fib6_nh_init+0xa22/0x1580
[  619.483665][   T73]      ip6_route_info_create+0xf18/0x17d0
[  619.483665][   T73]      ip6_route_add+0x1c/0x140
[  619.483665][   T73]      inet6_rtm_newroute+0x104/0x110
[  619.483665][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  619.483665][   T73]      netlink_rcv_skb+0x130/0x360
[  619.483665][   T73]      netlink_unicast+0x449/0x710
[  619.483665][   T73]      netlink_sendmsg+0x723/0xbe0
[  619.483665][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  619.483665][   T73]      ___sys_sendmsg+0xee/0x170
[  619.483665][   T73]      __sys_sendmsg+0xcd/0x170
[  619.483665][   T73]      do_syscall_64+0xc6/0x1e0
[  619.483665][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  619.483665][   T73] 
[  619.485943][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  619.485943][   T73]      dst_init+0x84/0x4a0
[  619.485943][   T73]      dst_alloc+0x97/0x150
[  619.485943][   T73]      ip6_dst_alloc+0x23/0x90
[  619.485943][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  619.485943][   T73]      ip6_pol_route+0x56f/0x840
[  619.485943][   T73]      fib6_rule_lookup+0x456/0x630
[  619.485943][   T73]      ip6_route_input+0x59c/0xa50
[  619.485943][   T73]      ipv6_rcv+0x397/0x810
[  619.485943][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  619.485943][   T73]      process_backlog+0x101/0x620
[  619.485943][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  619.485943][   T73]      net_rx_action+0x495/0xbe0
[  619.485943][   T73]      __do_softirq+0x1b5/0x7f6
[  619.485943][   T73] 
[  619.488018][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  619.488018][   T73]      netdev_get_by_index+0x5e/0x80
[  619.488018][   T73]      fib6_nh_init+0x3d8/0x1580
[  619.488018][   T73]      ip6_route_info_create+0xf18/0x17d0
[  619.488018][   T73]      ip6_route_add+0x1c/0x140
[  619.488018][   T73]      addrconf_prefix_route+0x2a6/0x430
[  619.488018][   T73]      inet6_addr_add+0x4f8/0xa40
[  619.488018][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  619.488018][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  619.488018][   T73]      netlink_rcv_skb+0x130/0x360
[  619.488018][   T73]      netlink_unicast+0x449/0x710
[  619.488018][   T73]      netlink_sendmsg+0x723/0xbe0
[  619.488018][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  619.488018][   T73]      ___sys_sendmsg+0xee/0x170
[  619.488018][   T73]      __sys_sendmsg+0xcd/0x170
[  619.488018][   T73]      do_syscall_64+0xc6/0x1e0
[  619.488018][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  619.488018][   T73] 
[  619.490424][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  619.490424][   T73]      netdev_get_by_index+0x5e/0x80
[  619.490424][   T73]      fib6_nh_init+0x3d8/0x1580
[  619.490424][   T73]      ip6_route_info_create+0xf18/0x17d0
[  619.490424][   T73]      addrconf_f6i_alloc+0x315/0x560
[  619.490424][   T73]      ipv6_add_addr+0x411/0x2000
[  619.490424][   T73]      inet6_addr_add+0x30e/0xa40
[  619.490424][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  619.490424][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  619.490424][   T73]      netlink_rcv_skb+0x130/0x360
[  619.490424][   T73]      netlink_unicast+0x449/0x710
[  619.490424][   T73]      netlink_sendmsg+0x723/0xbe0
[  619.490424][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  619.490424][   T73]      ___sys_sendmsg+0xee/0x170
[  619.490424][   T73]      __sys_sendmsg+0xcd/0x170
[  619.490424][   T73]      do_syscall_64+0xc6/0x1e0
[  619.490424][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  619.490424][   T73] 
[  619.492908][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  619.492908][   T73]      netdev_get_by_index+0x5e/0x80
[  619.492908][   T73]      fib6_nh_init+0x3d8/0x1580
[  619.492908][   T73]      ip6_route_info_create+0xf18/0x17d0
[  619.492908][   T73]      ip6_route_add+0x1c/0x140
[  619.492908][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  619.492908][   T73]      addrconf_add_dev+0xe2/0x170
[  619.492908][   T73]      inet6_addr_add+0x12f/0xa40
[  619.492908][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  619.492908][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  619.492908][   T73]      netlink_rcv_skb+0x130/0x360
[  619.492908][   T73]      netlink_unicast+0x449/0x710
[  619.492908][   T73]      netlink_sendmsg+0x723/0xbe0
[  619.492908][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  619.492908][   T73]      ___sys_sendmsg+0xee/0x170
[  619.492908][   T73]      __sys_sendmsg+0xcd/0x170
[  619.492908][   T73]      do_syscall_64+0xc6/0x1e0
[  619.492908][   T73] 
[  619.495297][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  619.495297][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  619.495297][   T73]      ipv6_find_idev+0x102/0x170
[  619.495297][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  619.495297][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  619.495297][   T73]      netlink_rcv_skb+0x130/0x360
[  619.495297][   T73]      netlink_unicast+0x449/0x710
[  619.495297][   T73]      netlink_sendmsg+0x723/0xbe0
[  619.495297][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  619.495297][   T73]      ___sys_sendmsg+0xee/0x170
[  619.495297][   T73]      __sys_sendmsg+0xcd/0x170
[  619.495297][   T73]      do_syscall_64+0xc6/0x1e0
[  619.495297][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  619.495297][   T73] 
[  619.497272][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  619.497272][   T73]      neigh_parms_alloc+0x1e5/0x510
[  619.497272][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  619.497272][   T73]      ipv6_find_idev+0x102/0x170
[  619.497272][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  619.497272][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  619.497272][   T73]      netlink_rcv_skb+0x130/0x360
[  619.497272][   T73]      netlink_unicast+0x449/0x710
[  619.497272][   T73]      netlink_sendmsg+0x723/0xbe0
[  619.497272][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  619.497272][   T73]      ___sys_sendmsg+0xee/0x170
[  619.497272][   T73]      __sys_sendmsg+0xcd/0x170
[  619.497272][   T73]      do_syscall_64+0xc6/0x1e0
[  619.497272][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  619.497272][   T73] 
[  619.499373][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  619.500191][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  619.500191][   T73]      netdev_get_by_index+0x5e/0x80
[  619.500191][   T73]      fib6_nh_init+0x3d8/0x1580
[  619.500191][   T73]      ip6_route_info_create+0xf18/0x17d0
[  619.500191][   T73]      addrconf_f6i_alloc+0x265/0x560
[  619.500191][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  619.500191][   T73]      addrconf_join_anycast+0x1c0/0x220
[  619.500191][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  619.500191][   T73]      addrconf_dad_completed+0x12b/0xe20
[  619.500191][   T73]      addrconf_dad_begin+0x310/0x670
[  619.500191][   T73]      addrconf_dad_work+0x10b/0xab0
[  619.500191][   T73]      process_one_work+0x84d/0x18a0
[  619.500191][   T73]      worker_thread+0x587/0xd30
[  619.500191][   T73]      kthread+0x28a/0x350
[  619.500191][   T73]      ret_from_fork+0x31/0x70
[  619.500191][   T73]      ret_from_fork_asm+0x1a/0x30
[  619.500191][   T73] 
[  619.502340][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  619.502340][   T73]      netdev_get_by_index+0x5e/0x80
[  619.502340][   T73]      fib6_nh_init+0x3d8/0x1580
[  619.502340][   T73]      ip6_route_info_create+0xf18/0x17d0
[  619.502340][   T73]      ip6_route_add+0x1c/0x140
[  619.502340][   T73]      addrconf_prefix_route+0x2a6/0x430
[  619.502340][   T73]      inet6_addr_add+0x4f8/0xa40
[  619.502340][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  619.502340][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  619.502340][   T73]      netlink_rcv_skb+0x130/0x360
[  619.502340][   T73]      netlink_unicast+0x449/0x710
[  619.502340][   T73]      netlink_sendmsg+0x723/0xbe0
[  619.502340][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  619.502340][   T73]      ___sys_sendmsg+0xee/0x170
[  619.502340][   T73]      __sys_sendmsg+0xcd/0x170
[  619.502340][   T73]      do_syscall_64+0xc6/0x1e0
[  619.502340][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  619.502340][   T73] 
[  619.505585][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  619.505585][   T73]      netdev_get_by_index+0x5e/0x80
[  619.505585][   T73]      fib6_nh_init+0x3d8/0x1580
[  619.505585][   T73]      ip6_route_info_create+0xf18/0x17d0
[  619.505585][   T73]      addrconf_f6i_alloc+0x315/0x560
[  619.505585][   T73]      ipv6_add_addr+0x411/0x2000
[  619.505585][   T73]      inet6_addr_add+0x30e/0xa40
[  619.505585][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  619.505585][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  619.505585][   T73]      netlink_rcv_skb+0x130/0x360
[  619.505585][   T73]      netlink_unicast+0x449/0x710
[  619.505585][   T73]      netlink_sendmsg+0x723/0xbe0
[  619.505585][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  619.505585][   T73]      ___sys_sendmsg+0xee/0x170
[  619.505585][   T73]      __sys_sendmsg+0xcd/0x170
[  619.505585][   T73]      do_syscall_64+0xc6/0x1e0
[  619.505585][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  619.505585][   T73] 
[  619.509045][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  619.509045][   T73]      netdev_get_by_index+0x5e/0x80
[  619.509045][   T73]      fib6_nh_init+0x3d8/0x1580
[  619.509045][   T73]      ip6_route_info_create+0xf18/0x17d0
[  619.509045][   T73]      ip6_route_add+0x1c/0x140
[  619.509045][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  619.509045][   T73]      addrconf_add_dev+0xe2/0x170
[  619.509045][   T73]      inet6_addr_add+0x12f/0xa40
[  619.509045][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  619.509045][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  619.509045][   T73]      netlink_rcv_skb+0x130/0x360
[  619.509045][   T73]      netlink_unicast+0x449/0x710
[  619.509045][   T73]      netlink_sendmsg+0x723/0xbe0
[  619.509045][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  619.509045][   T73]      ___sys_sendmsg+0xee/0x170
[  619.509045][   T73]      __sys_sendmsg+0xcd/0x170
[  619.509045][   T73]      do_syscall_64+0xc6/0x1e0
[  619.509045][   T73] 
[  619.511524][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  619.511524][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  619.511524][   T73]      ipv6_find_idev+0x102/0x170
[  619.511524][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  619.511524][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  619.511524][   T73]      netlink_rcv_skb+0x130/0x360
[  619.511524][   T73]      netlink_unicast+0x449/0x710
[  619.511524][   T73]      netlink_sendmsg+0x723/0xbe0
[  619.511524][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  619.511524][   T73]      ___sys_sendmsg+0xee/0x170
[  619.511524][   T73]      __sys_sendmsg+0xcd/0x170
[  619.511524][   T73]      do_syscall_64+0xc6/0x1e0
[  619.511524][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  619.511524][   T73] 
[  619.513692][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  619.513692][   T73]      neigh_parms_alloc+0x1e5/0x510
[  619.513692][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  619.513692][   T73]      ipv6_find_idev+0x102/0x170
[  619.513692][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  619.513692][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  619.513692][   T73]      netlink_rcv_skb+0x130/0x360
[  619.513692][   T73]      netlink_unicast+0x449/0x710
[  619.513692][   T73]      netlink_sendmsg+0x723/0xbe0
[  619.513692][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  619.513692][   T73]      ___sys_sendmsg+0xee/0x170
[  619.513692][   T73]      __sys_sendmsg+0xcd/0x170
[  619.513692][   T73]      do_syscall_64+0xc6/0x1e0
[  619.513692][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  619.513692][   T73] 
[  629.655800][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  629.656357][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  629.656357][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  629.656357][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  629.656357][   T73]      fib6_nh_init+0xa22/0x1580
[  629.656357][   T73]      ip6_route_info_create+0xf18/0x17d0
[  629.656357][   T73]      ip6_route_add+0x1c/0x140
[  629.656357][   T73]      inet6_rtm_newroute+0x104/0x110
[  629.656357][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  629.656357][   T73]      netlink_rcv_skb+0x130/0x360
[  629.656357][   T73]      netlink_unicast+0x449/0x710
[  629.656357][   T73]      netlink_sendmsg+0x723/0xbe0
[  629.656357][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  629.656357][   T73]      ___sys_sendmsg+0xee/0x170
[  629.656357][   T73]      __sys_sendmsg+0xcd/0x170
[  629.656357][   T73]      do_syscall_64+0xc6/0x1e0
[  629.656357][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  629.656357][   T73] 
[  629.659385][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  629.659385][   T73]      dst_init+0x84/0x4a0
[  629.659385][   T73]      dst_alloc+0x97/0x150
[  629.659385][   T73]      ip6_dst_alloc+0x23/0x90
[  629.659385][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  629.659385][   T73]      ip6_pol_route+0x56f/0x840
[  629.659385][   T73]      fib6_rule_lookup+0x456/0x630
[  629.659385][   T73]      ip6_route_input+0x59c/0xa50
[  629.659385][   T73]      ipv6_rcv+0x397/0x810
[  629.659385][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  629.659385][   T73]      process_backlog+0x101/0x620
[  629.659385][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  629.659385][   T73]      net_rx_action+0x495/0xbe0
[  629.659385][   T73]      __do_softirq+0x1b5/0x7f6
[  629.659385][   T73] 
[  629.661948][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  629.661948][   T73]      netdev_get_by_index+0x5e/0x80
[  629.661948][   T73]      fib6_nh_init+0x3d8/0x1580
[  629.661948][   T73]      ip6_route_info_create+0xf18/0x17d0
[  629.661948][   T73]      ip6_route_add+0x1c/0x140
[  629.661948][   T73]      addrconf_prefix_route+0x2a6/0x430
[  629.661948][   T73]      inet6_addr_add+0x4f8/0xa40
[  629.661948][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  629.661948][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  629.661948][   T73]      netlink_rcv_skb+0x130/0x360
[  629.661948][   T73]      netlink_unicast+0x449/0x710
[  629.661948][   T73]      netlink_sendmsg+0x723/0xbe0
[  629.661948][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  629.661948][   T73]      ___sys_sendmsg+0xee/0x170
[  629.661948][   T73]      __sys_sendmsg+0xcd/0x170
[  629.661948][   T73]      do_syscall_64+0xc6/0x1e0
[  629.661948][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  629.661948][   T73] 
[  629.665055][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  629.665055][   T73]      netdev_get_by_index+0x5e/0x80
[  629.665055][   T73]      fib6_nh_init+0x3d8/0x1580
[  629.665055][   T73]      ip6_route_info_create+0xf18/0x17d0
[  629.665055][   T73]      addrconf_f6i_alloc+0x315/0x560
[  629.665055][   T73]      ipv6_add_addr+0x411/0x2000
[  629.665055][   T73]      inet6_addr_add+0x30e/0xa40
[  629.665055][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  629.665055][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  629.665055][   T73]      netlink_rcv_skb+0x130/0x360
[  629.665055][   T73]      netlink_unicast+0x449/0x710
[  629.665055][   T73]      netlink_sendmsg+0x723/0xbe0
[  629.665055][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  629.665055][   T73]      ___sys_sendmsg+0xee/0x170
[  629.665055][   T73]      __sys_sendmsg+0xcd/0x170
[  629.665055][   T73]      do_syscall_64+0xc6/0x1e0
[  629.665055][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  629.665055][   T73] 
[  629.668127][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  629.668127][   T73]      netdev_get_by_index+0x5e/0x80
[  629.668127][   T73]      fib6_nh_init+0x3d8/0x1580
[  629.668127][   T73]      ip6_route_info_create+0xf18/0x17d0
[  629.668127][   T73]      ip6_route_add+0x1c/0x140
[  629.668127][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  629.668127][   T73]      addrconf_add_dev+0xe2/0x170
[  629.668127][   T73]      inet6_addr_add+0x12f/0xa40
[  629.668127][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  629.668127][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  629.668127][   T73]      netlink_rcv_skb+0x130/0x360
[  629.668127][   T73]      netlink_unicast+0x449/0x710
[  629.668127][   T73]      netlink_sendmsg+0x723/0xbe0
[  629.668127][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  629.668127][   T73]      ___sys_sendmsg+0xee/0x170
[  629.668127][   T73]      __sys_sendmsg+0xcd/0x170
[  629.668127][   T73]      do_syscall_64+0xc6/0x1e0
[  629.668127][   T73] 
[  629.671195][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  629.671195][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  629.671195][   T73]      ipv6_find_idev+0x102/0x170
[  629.671195][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  629.671195][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  629.671195][   T73]      netlink_rcv_skb+0x130/0x360
[  629.671195][   T73]      netlink_unicast+0x449/0x710
[  629.671195][   T73]      netlink_sendmsg+0x723/0xbe0
[  629.671195][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  629.671195][   T73]      ___sys_sendmsg+0xee/0x170
[  629.671195][   T73]      __sys_sendmsg+0xcd/0x170
[  629.671195][   T73]      do_syscall_64+0xc6/0x1e0
[  629.671195][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  629.671195][   T73] 
[  629.674036][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  629.674036][   T73]      neigh_parms_alloc+0x1e5/0x510
[  629.674036][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  629.674036][   T73]      ipv6_find_idev+0x102/0x170
[  629.674036][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  629.674036][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  629.674036][   T73]      netlink_rcv_skb+0x130/0x360
[  629.674036][   T73]      netlink_unicast+0x449/0x710
[  629.674036][   T73]      netlink_sendmsg+0x723/0xbe0
[  629.674036][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  629.674036][   T73]      ___sys_sendmsg+0xee/0x170
[  629.674036][   T73]      __sys_sendmsg+0xcd/0x170
[  629.674036][   T73]      do_syscall_64+0xc6/0x1e0
[  629.674036][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  629.674036][   T73] 
[  629.676676][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  629.677110][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  629.677110][   T73]      netdev_get_by_index+0x5e/0x80
[  629.677110][   T73]      fib6_nh_init+0x3d8/0x1580
[  629.677110][   T73]      ip6_route_info_create+0xf18/0x17d0
[  629.677110][   T73]      addrconf_f6i_alloc+0x265/0x560
[  629.677110][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  629.677110][   T73]      addrconf_join_anycast+0x1c0/0x220
[  629.677110][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  629.677110][   T73]      addrconf_dad_completed+0x12b/0xe20
[  629.677110][   T73]      addrconf_dad_begin+0x310/0x670
[  629.677110][   T73]      addrconf_dad_work+0x10b/0xab0
[  629.677110][   T73]      process_one_work+0x84d/0x18a0
[  629.677110][   T73]      worker_thread+0x587/0xd30
[  629.677110][   T73]      kthread+0x28a/0x350
[  629.677110][   T73]      ret_from_fork+0x31/0x70
[  629.677110][   T73]      ret_from_fork_asm+0x1a/0x30
[  629.677110][   T73] 
[  629.680080][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  629.680080][   T73]      netdev_get_by_index+0x5e/0x80
[  629.680080][   T73]      fib6_nh_init+0x3d8/0x1580
[  629.680080][   T73]      ip6_route_info_create+0xf18/0x17d0
[  629.680080][   T73]      ip6_route_add+0x1c/0x140
[  629.680080][   T73]      addrconf_prefix_route+0x2a6/0x430
[  629.680080][   T73]      inet6_addr_add+0x4f8/0xa40
[  629.680080][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  629.680080][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  629.680080][   T73]      netlink_rcv_skb+0x130/0x360
[  629.680080][   T73]      netlink_unicast+0x449/0x710
[  629.680080][   T73]      netlink_sendmsg+0x723/0xbe0
[  629.680080][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  629.680080][   T73]      ___sys_sendmsg+0xee/0x170
[  629.680080][   T73]      __sys_sendmsg+0xcd/0x170
[  629.680080][   T73]      do_syscall_64+0xc6/0x1e0
[  629.680080][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  629.680080][   T73] 
[  629.683183][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  629.683183][   T73]      netdev_get_by_index+0x5e/0x80
[  629.683183][   T73]      fib6_nh_init+0x3d8/0x1580
[  629.683183][   T73]      ip6_route_info_create+0xf18/0x17d0
[  629.683183][   T73]      addrconf_f6i_alloc+0x315/0x560
[  629.683183][   T73]      ipv6_add_addr+0x411/0x2000
[  629.683183][   T73]      inet6_addr_add+0x30e/0xa40
[  629.683183][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  629.683183][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  629.683183][   T73]      netlink_rcv_skb+0x130/0x360
[  629.683183][   T73]      netlink_unicast+0x449/0x710
[  629.683183][   T73]      netlink_sendmsg+0x723/0xbe0
[  629.683183][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  629.683183][   T73]      ___sys_sendmsg+0xee/0x170
[  629.683183][   T73]      __sys_sendmsg+0xcd/0x170
[  629.683183][   T73]      do_syscall_64+0xc6/0x1e0
[  629.683183][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  629.683183][   T73] 
[  629.686260][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  629.686260][   T73]      netdev_get_by_index+0x5e/0x80
[  629.686260][   T73]      fib6_nh_init+0x3d8/0x1580
[  629.686260][   T73]      ip6_route_info_create+0xf18/0x17d0
[  629.686260][   T73]      ip6_route_add+0x1c/0x140
[  629.686260][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  629.686260][   T73]      addrconf_add_dev+0xe2/0x170
[  629.686260][   T73]      inet6_addr_add+0x12f/0xa40
[  629.686260][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  629.686260][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  629.686260][   T73]      netlink_rcv_skb+0x130/0x360
[  629.686260][   T73]      netlink_unicast+0x449/0x710
[  629.686260][   T73]      netlink_sendmsg+0x723/0xbe0
[  629.686260][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  629.686260][   T73]      ___sys_sendmsg+0xee/0x170
[  629.686260][   T73]      __sys_sendmsg+0xcd/0x170
[  629.686260][   T73]      do_syscall_64+0xc6/0x1e0
[  629.686260][   T73] 
[  629.689410][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  629.689410][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  629.689410][   T73]      ipv6_find_idev+0x102/0x170
[  629.689410][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  629.689410][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  629.689410][   T73]      netlink_rcv_skb+0x130/0x360
[  629.689410][   T73]      netlink_unicast+0x449/0x710
[  629.689410][   T73]      netlink_sendmsg+0x723/0xbe0
[  629.689410][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  629.689410][   T73]      ___sys_sendmsg+0xee/0x170
[  629.689410][   T73]      __sys_sendmsg+0xcd/0x170
[  629.689410][   T73]      do_syscall_64+0xc6/0x1e0
[  629.689410][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  629.689410][   T73] 
[  629.691802][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  629.691802][   T73]      neigh_parms_alloc+0x1e5/0x510
[  629.691802][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  629.691802][   T73]      ipv6_find_idev+0x102/0x170
[  629.691802][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  629.691802][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  629.691802][   T73]      netlink_rcv_skb+0x130/0x360
[  629.691802][   T73]      netlink_unicast+0x449/0x710
[  629.691802][   T73]      netlink_sendmsg+0x723/0xbe0
[  629.691802][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  629.691802][   T73]      ___sys_sendmsg+0xee/0x170
[  629.691802][   T73]      __sys_sendmsg+0xcd/0x170
[  629.691802][   T73]      do_syscall_64+0xc6/0x1e0
[  629.691802][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  629.691802][   T73] 
[  629.694333][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  629.694754][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  629.694754][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  629.694754][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  629.694754][   T73]      fib6_nh_init+0xa22/0x1580
[  629.694754][   T73]      ip6_route_info_create+0xf18/0x17d0
[  629.694754][   T73]      ip6_route_add+0x1c/0x140
[  629.694754][   T73]      inet6_rtm_newroute+0x104/0x110
[  629.694754][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  629.694754][   T73]      netlink_rcv_skb+0x130/0x360
[  629.694754][   T73]      netlink_unicast+0x449/0x710
[  629.694754][   T73]      netlink_sendmsg+0x723/0xbe0
[  629.694754][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  629.694754][   T73]      ___sys_sendmsg+0xee/0x170
[  629.694754][   T73]      __sys_sendmsg+0xcd/0x170
[  629.694754][   T73]      do_syscall_64+0xc6/0x1e0
[  629.694754][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  629.694754][   T73] 
[  629.697922][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  629.697922][   T73]      dst_init+0x84/0x4a0
[  629.697922][   T73]      dst_alloc+0x97/0x150
[  629.697922][   T73]      ip6_dst_alloc+0x23/0x90
[  629.697922][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  629.697922][   T73]      ip6_pol_route+0x56f/0x840
[  629.697922][   T73]      fib6_rule_lookup+0x456/0x630
[  629.697922][   T73]      ip6_route_input+0x59c/0xa50
[  629.697922][   T73]      ipv6_rcv+0x397/0x810
[  629.697922][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  629.697922][   T73]      process_backlog+0x101/0x620
[  629.697922][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  629.697922][   T73]      net_rx_action+0x495/0xbe0
[  629.697922][   T73]      __do_softirq+0x1b5/0x7f6
[  629.697922][   T73] 
[  629.700366][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  629.700366][   T73]      netdev_get_by_index+0x5e/0x80
[  629.700366][   T73]      fib6_nh_init+0x3d8/0x1580
[  629.700366][   T73]      ip6_route_info_create+0xf18/0x17d0
[  629.700366][   T73]      ip6_route_add+0x1c/0x140
[  629.700366][   T73]      addrconf_prefix_route+0x2a6/0x430
[  629.700366][   T73]      inet6_addr_add+0x4f8/0xa40
[  629.700366][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  629.700366][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  629.700366][   T73]      netlink_rcv_skb+0x130/0x360
[  629.700366][   T73]      netlink_unicast+0x449/0x710
[  629.700366][   T73]      netlink_sendmsg+0x723/0xbe0
[  629.700366][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  629.700366][   T73]      ___sys_sendmsg+0xee/0x170
[  629.700366][   T73]      __sys_sendmsg+0xcd/0x170
[  629.700366][   T73]      do_syscall_64+0xc6/0x1e0
[  629.700366][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  629.700366][   T73] 
[  629.702625][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  629.702625][   T73]      netdev_get_by_index+0x5e/0x80
[  629.702625][   T73]      fib6_nh_init+0x3d8/0x1580
[  629.702625][   T73]      ip6_route_info_create+0xf18/0x17d0
[  629.702625][   T73]      addrconf_f6i_alloc+0x315/0x560
[  629.702625][   T73]      ipv6_add_addr+0x411/0x2000
[  629.702625][   T73]      inet6_addr_add+0x30e/0xa40
[  629.702625][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  629.702625][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  629.702625][   T73]      netlink_rcv_skb+0x130/0x360
[  629.702625][   T73]      netlink_unicast+0x449/0x710
[  629.702625][   T73]      netlink_sendmsg+0x723/0xbe0
[  629.702625][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  629.702625][   T73]      ___sys_sendmsg+0xee/0x170
[  629.702625][   T73]      __sys_sendmsg+0xcd/0x170
[  629.702625][   T73]      do_syscall_64+0xc6/0x1e0
[  629.702625][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  629.702625][   T73] 
[  629.704934][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  629.704934][   T73]      netdev_get_by_index+0x5e/0x80
[  629.704934][   T73]      fib6_nh_init+0x3d8/0x1580
[  629.704934][   T73]      ip6_route_info_create+0xf18/0x17d0
[  629.704934][   T73]      ip6_route_add+0x1c/0x140
[  629.704934][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  629.704934][   T73]      addrconf_add_dev+0xe2/0x170
[  629.704934][   T73]      inet6_addr_add+0x12f/0xa40
[  629.704934][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  629.704934][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  629.704934][   T73]      netlink_rcv_skb+0x130/0x360
[  629.704934][   T73]      netlink_unicast+0x449/0x710
[  629.704934][   T73]      netlink_sendmsg+0x723/0xbe0
[  629.704934][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  629.704934][   T73]      ___sys_sendmsg+0xee/0x170
[  629.704934][   T73]      __sys_sendmsg+0xcd/0x170
[  629.704934][   T73]      do_syscall_64+0xc6/0x1e0
[  629.704934][   T73] 
[  629.707269][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  629.707269][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  629.707269][   T73]      ipv6_find_idev+0x102/0x170
[  629.707269][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  629.707269][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  629.707269][   T73]      netlink_rcv_skb+0x130/0x360
[  629.707269][   T73]      netlink_unicast+0x449/0x710
[  629.707269][   T73]      netlink_sendmsg+0x723/0xbe0
[  629.707269][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  629.707269][   T73]      ___sys_sendmsg+0xee/0x170
[  629.707269][   T73]      __sys_sendmsg+0xcd/0x170
[  629.707269][   T73]      do_syscall_64+0xc6/0x1e0
[  629.707269][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  629.707269][   T73] 
[  629.709642][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  629.709642][   T73]      neigh_parms_alloc+0x1e5/0x510
[  629.709642][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  629.709642][   T73]      ipv6_find_idev+0x102/0x170
[  629.709642][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  629.709642][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  629.709642][   T73]      netlink_rcv_skb+0x130/0x360
[  629.709642][   T73]      netlink_unicast+0x449/0x710
[  629.709642][   T73]      netlink_sendmsg+0x723/0xbe0
[  629.709642][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  629.709642][   T73]      ___sys_sendmsg+0xee/0x170
[  629.709642][   T73]      __sys_sendmsg+0xcd/0x170
[  629.709642][   T73]      do_syscall_64+0xc6/0x1e0
[  629.709642][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  629.709642][   T73] 
[  629.711578][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  629.711982][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  629.711982][   T73]      netdev_get_by_index+0x5e/0x80
[  629.711982][   T73]      fib6_nh_init+0x3d8/0x1580
[  629.711982][   T73]      ip6_route_info_create+0xf18/0x17d0
[  629.711982][   T73]      addrconf_f6i_alloc+0x265/0x560
[  629.711982][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  629.711982][   T73]      addrconf_join_anycast+0x1c0/0x220
[  629.711982][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  629.711982][   T73]      addrconf_dad_completed+0x12b/0xe20
[  629.711982][   T73]      addrconf_dad_begin+0x310/0x670
[  629.711982][   T73]      addrconf_dad_work+0x10b/0xab0
[  629.711982][   T73]      process_one_work+0x84d/0x18a0
[  629.711982][   T73]      worker_thread+0x587/0xd30
[  629.711982][   T73]      kthread+0x28a/0x350
[  629.711982][   T73]      ret_from_fork+0x31/0x70
[  629.711982][   T73]      ret_from_fork_asm+0x1a/0x30
[  629.711982][   T73] 
[  629.714163][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  629.714163][   T73]      netdev_get_by_index+0x5e/0x80
[  629.714163][   T73]      fib6_nh_init+0x3d8/0x1580
[  629.714163][   T73]      ip6_route_info_create+0xf18/0x17d0
[  629.714163][   T73]      ip6_route_add+0x1c/0x140
[  629.714163][   T73]      addrconf_prefix_route+0x2a6/0x430
[  629.714163][   T73]      inet6_addr_add+0x4f8/0xa40
[  629.714163][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  629.714163][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  629.714163][   T73]      netlink_rcv_skb+0x130/0x360
[  629.714163][   T73]      netlink_unicast+0x449/0x710
[  629.714163][   T73]      netlink_sendmsg+0x723/0xbe0
[  629.714163][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  629.714163][   T73]      ___sys_sendmsg+0xee/0x170
[  629.714163][   T73]      __sys_sendmsg+0xcd/0x170
[  629.714163][   T73]      do_syscall_64+0xc6/0x1e0
[  629.714163][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  629.714163][   T73] 
[  629.716482][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  629.716482][   T73]      netdev_get_by_index+0x5e/0x80
[  629.716482][   T73]      fib6_nh_init+0x3d8/0x1580
[  629.716482][   T73]      ip6_route_info_create+0xf18/0x17d0
[  629.716482][   T73]      addrconf_f6i_alloc+0x315/0x560
[  629.716482][   T73]      ipv6_add_addr+0x411/0x2000
[  629.716482][   T73]      inet6_addr_add+0x30e/0xa40
[  629.716482][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  629.716482][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  629.716482][   T73]      netlink_rcv_skb+0x130/0x360
[  629.716482][   T73]      netlink_unicast+0x449/0x710
[  629.716482][   T73]      netlink_sendmsg+0x723/0xbe0
[  629.716482][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  629.716482][   T73]      ___sys_sendmsg+0xee/0x170
[  629.716482][   T73]      __sys_sendmsg+0xcd/0x170
[  629.716482][   T73]      do_syscall_64+0xc6/0x1e0
[  629.716482][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  629.716482][   T73] 
[  629.718852][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  629.718852][   T73]      netdev_get_by_index+0x5e/0x80
[  629.718852][   T73]      fib6_nh_init+0x3d8/0x1580
[  629.718852][   T73]      ip6_route_info_create+0xf18/0x17d0
[  629.718852][   T73]      ip6_route_add+0x1c/0x140
[  629.718852][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  629.718852][   T73]      addrconf_add_dev+0xe2/0x170
[  629.718852][   T73]      inet6_addr_add+0x12f/0xa40
[  629.718852][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  629.718852][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  629.718852][   T73]      netlink_rcv_skb+0x130/0x360
[  629.718852][   T73]      netlink_unicast+0x449/0x710
[  629.718852][   T73]      netlink_sendmsg+0x723/0xbe0
[  629.718852][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  629.718852][   T73]      ___sys_sendmsg+0xee/0x170
[  629.718852][   T73]      __sys_sendmsg+0xcd/0x170
[  629.718852][   T73]      do_syscall_64+0xc6/0x1e0
[  629.718852][   T73] 
[  629.721095][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  629.721095][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  629.721095][   T73]      ipv6_find_idev+0x102/0x170
[  629.721095][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  629.721095][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  629.721095][   T73]      netlink_rcv_skb+0x130/0x360
[  629.721095][   T73]      netlink_unicast+0x449/0x710
[  629.721095][   T73]      netlink_sendmsg+0x723/0xbe0
[  629.721095][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  629.721095][   T73]      ___sys_sendmsg+0xee/0x170
[  629.721095][   T73]      __sys_sendmsg+0xcd/0x170
[  629.721095][   T73]      do_syscall_64+0xc6/0x1e0
[  629.721095][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  629.721095][   T73] 
[  629.722854][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  629.722854][   T73]      neigh_parms_alloc+0x1e5/0x510
[  629.722854][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  629.722854][   T73]      ipv6_find_idev+0x102/0x170
[  629.722854][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  629.722854][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  629.722854][   T73]      netlink_rcv_skb+0x130/0x360
[  629.722854][   T73]      netlink_unicast+0x449/0x710
[  629.722854][   T73]      netlink_sendmsg+0x723/0xbe0
[  629.722854][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  629.722854][   T73]      ___sys_sendmsg+0xee/0x170
[  629.722854][   T73]      __sys_sendmsg+0xcd/0x170
[  629.722854][   T73]      do_syscall_64+0xc6/0x1e0
[  629.722854][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  629.722854][   T73] 
[  639.967696][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  639.968116][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  639.968116][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  639.968116][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  639.968116][   T73]      fib6_nh_init+0xa22/0x1580
[  639.968116][   T73]      ip6_route_info_create+0xf18/0x17d0
[  639.968116][   T73]      ip6_route_add+0x1c/0x140
[  639.968116][   T73]      inet6_rtm_newroute+0x104/0x110
[  639.968116][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  639.968116][   T73]      netlink_rcv_skb+0x130/0x360
[  639.968116][   T73]      netlink_unicast+0x449/0x710
[  639.968116][   T73]      netlink_sendmsg+0x723/0xbe0
[  639.968116][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  639.968116][   T73]      ___sys_sendmsg+0xee/0x170
[  639.968116][   T73]      __sys_sendmsg+0xcd/0x170
[  639.968116][   T73]      do_syscall_64+0xc6/0x1e0
[  639.968116][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  639.968116][   T73] 
[  639.970085][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  639.970085][   T73]      dst_init+0x84/0x4a0
[  639.970085][   T73]      dst_alloc+0x97/0x150
[  639.970085][   T73]      ip6_dst_alloc+0x23/0x90
[  639.970085][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  639.970085][   T73]      ip6_pol_route+0x56f/0x840
[  639.970085][   T73]      fib6_rule_lookup+0x456/0x630
[  639.970085][   T73]      ip6_route_input+0x59c/0xa50
[  639.970085][   T73]      ipv6_rcv+0x397/0x810
[  639.970085][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  639.970085][   T73]      process_backlog+0x101/0x620
[  639.970085][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  639.970085][   T73]      net_rx_action+0x495/0xbe0
[  639.970085][   T73]      __do_softirq+0x1b5/0x7f6
[  639.970085][   T73] 
[  639.971785][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  639.971785][   T73]      netdev_get_by_index+0x5e/0x80
[  639.971785][   T73]      fib6_nh_init+0x3d8/0x1580
[  639.971785][   T73]      ip6_route_info_create+0xf18/0x17d0
[  639.971785][   T73]      ip6_route_add+0x1c/0x140
[  639.971785][   T73]      addrconf_prefix_route+0x2a6/0x430
[  639.971785][   T73]      inet6_addr_add+0x4f8/0xa40
[  639.971785][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  639.971785][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  639.971785][   T73]      netlink_rcv_skb+0x130/0x360
[  639.971785][   T73]      netlink_unicast+0x449/0x710
[  639.971785][   T73]      netlink_sendmsg+0x723/0xbe0
[  639.971785][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  639.971785][   T73]      ___sys_sendmsg+0xee/0x170
[  639.971785][   T73]      __sys_sendmsg+0xcd/0x170
[  639.971785][   T73]      do_syscall_64+0xc6/0x1e0
[  639.971785][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  639.971785][   T73] 
[  639.973896][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  639.973896][   T73]      netdev_get_by_index+0x5e/0x80
[  639.973896][   T73]      fib6_nh_init+0x3d8/0x1580
[  639.973896][   T73]      ip6_route_info_create+0xf18/0x17d0
[  639.973896][   T73]      addrconf_f6i_alloc+0x315/0x560
[  639.973896][   T73]      ipv6_add_addr+0x411/0x2000
[  639.973896][   T73]      inet6_addr_add+0x30e/0xa40
[  639.973896][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  639.973896][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  639.973896][   T73]      netlink_rcv_skb+0x130/0x360
[  639.973896][   T73]      netlink_unicast+0x449/0x710
[  639.973896][   T73]      netlink_sendmsg+0x723/0xbe0
[  639.973896][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  639.973896][   T73]      ___sys_sendmsg+0xee/0x170
[  639.973896][   T73]      __sys_sendmsg+0xcd/0x170
[  639.973896][   T73]      do_syscall_64+0xc6/0x1e0
[  639.973896][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  639.973896][   T73] 
[  639.975964][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  639.975964][   T73]      netdev_get_by_index+0x5e/0x80
[  639.975964][   T73]      fib6_nh_init+0x3d8/0x1580
[  639.975964][   T73]      ip6_route_info_create+0xf18/0x17d0
[  639.975964][   T73]      ip6_route_add+0x1c/0x140
[  639.975964][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  639.975964][   T73]      addrconf_add_dev+0xe2/0x170
[  639.975964][   T73]      inet6_addr_add+0x12f/0xa40
[  639.975964][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  639.975964][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  639.975964][   T73]      netlink_rcv_skb+0x130/0x360
[  639.975964][   T73]      netlink_unicast+0x449/0x710
[  639.975964][   T73]      netlink_sendmsg+0x723/0xbe0
[  639.975964][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  639.975964][   T73]      ___sys_sendmsg+0xee/0x170
[  639.975964][   T73]      __sys_sendmsg+0xcd/0x170
[  639.975964][   T73]      do_syscall_64+0xc6/0x1e0
[  639.975964][   T73] 
[  639.977980][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  639.977980][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  639.977980][   T73]      ipv6_find_idev+0x102/0x170
[  639.977980][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  639.977980][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  639.977980][   T73]      netlink_rcv_skb+0x130/0x360
[  639.977980][   T73]      netlink_unicast+0x449/0x710
[  639.977980][   T73]      netlink_sendmsg+0x723/0xbe0
[  639.977980][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  639.977980][   T73]      ___sys_sendmsg+0xee/0x170
[  639.977980][   T73]      __sys_sendmsg+0xcd/0x170
[  639.977980][   T73]      do_syscall_64+0xc6/0x1e0
[  639.977980][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  639.977980][   T73] 
[  639.979574][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  639.979574][   T73]      neigh_parms_alloc+0x1e5/0x510
[  639.979574][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  639.979574][   T73]      ipv6_find_idev+0x102/0x170
[  639.979574][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  639.979574][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  639.979574][   T73]      netlink_rcv_skb+0x130/0x360
[  639.979574][   T73]      netlink_unicast+0x449/0x710
[  639.979574][   T73]      netlink_sendmsg+0x723/0xbe0
[  639.979574][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  639.979574][   T73]      ___sys_sendmsg+0xee/0x170
[  639.979574][   T73]      __sys_sendmsg+0xcd/0x170
[  639.979574][   T73]      do_syscall_64+0xc6/0x1e0
[  639.979574][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  639.979574][   T73] 
[  639.981315][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  639.981600][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  639.981600][   T73]      netdev_get_by_index+0x5e/0x80
[  639.981600][   T73]      fib6_nh_init+0x3d8/0x1580
[  639.981600][   T73]      ip6_route_info_create+0xf18/0x17d0
[  639.981600][   T73]      addrconf_f6i_alloc+0x265/0x560
[  639.981600][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  639.981600][   T73]      addrconf_join_anycast+0x1c0/0x220
[  639.981600][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  639.981600][   T73]      addrconf_dad_completed+0x12b/0xe20
[  639.981600][   T73]      addrconf_dad_begin+0x310/0x670
[  639.981600][   T73]      addrconf_dad_work+0x10b/0xab0
[  639.981600][   T73]      process_one_work+0x84d/0x18a0
[  639.981600][   T73]      worker_thread+0x587/0xd30
[  639.981600][   T73]      kthread+0x28a/0x350
[  639.981600][   T73]      ret_from_fork+0x31/0x70
[  639.981600][   T73]      ret_from_fork_asm+0x1a/0x30
[  639.981600][   T73] 
[  639.983561][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  639.983561][   T73]      netdev_get_by_index+0x5e/0x80
[  639.983561][   T73]      fib6_nh_init+0x3d8/0x1580
[  639.983561][   T73]      ip6_route_info_create+0xf18/0x17d0
[  639.983561][   T73]      ip6_route_add+0x1c/0x140
[  639.983561][   T73]      addrconf_prefix_route+0x2a6/0x430
[  639.983561][   T73]      inet6_addr_add+0x4f8/0xa40
[  639.983561][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  639.983561][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  639.983561][   T73]      netlink_rcv_skb+0x130/0x360
[  639.983561][   T73]      netlink_unicast+0x449/0x710
[  639.983561][   T73]      netlink_sendmsg+0x723/0xbe0
[  639.983561][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  639.983561][   T73]      ___sys_sendmsg+0xee/0x170
[  639.983561][   T73]      __sys_sendmsg+0xcd/0x170
[  639.983561][   T73]      do_syscall_64+0xc6/0x1e0
[  639.983561][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  639.983561][   T73] 
[  639.985986][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  639.985986][   T73]      netdev_get_by_index+0x5e/0x80
[  639.985986][   T73]      fib6_nh_init+0x3d8/0x1580
[  639.985986][   T73]      ip6_route_info_create+0xf18/0x17d0
[  639.985986][   T73]      addrconf_f6i_alloc+0x315/0x560
[  639.985986][   T73]      ipv6_add_addr+0x411/0x2000
[  639.985986][   T73]      inet6_addr_add+0x30e/0xa40
[  639.985986][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  639.985986][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  639.985986][   T73]      netlink_rcv_skb+0x130/0x360
[  639.985986][   T73]      netlink_unicast+0x449/0x710
[  639.985986][   T73]      netlink_sendmsg+0x723/0xbe0
[  639.985986][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  639.985986][   T73]      ___sys_sendmsg+0xee/0x170
[  639.985986][   T73]      __sys_sendmsg+0xcd/0x170
[  639.985986][   T73]      do_syscall_64+0xc6/0x1e0
[  639.985986][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  639.985986][   T73] 
[  639.988026][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  639.988026][   T73]      netdev_get_by_index+0x5e/0x80
[  639.988026][   T73]      fib6_nh_init+0x3d8/0x1580
[  639.988026][   T73]      ip6_route_info_create+0xf18/0x17d0
[  639.988026][   T73]      ip6_route_add+0x1c/0x140
[  639.988026][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  639.988026][   T73]      addrconf_add_dev+0xe2/0x170
[  639.988026][   T73]      inet6_addr_add+0x12f/0xa40
[  639.988026][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  639.988026][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  639.988026][   T73]      netlink_rcv_skb+0x130/0x360
[  639.988026][   T73]      netlink_unicast+0x449/0x710
[  639.988026][   T73]      netlink_sendmsg+0x723/0xbe0
[  639.988026][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  639.988026][   T73]      ___sys_sendmsg+0xee/0x170
[  639.988026][   T73]      __sys_sendmsg+0xcd/0x170
[  639.988026][   T73]      do_syscall_64+0xc6/0x1e0
[  639.988026][   T73] 
[  639.990033][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  639.990033][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  639.990033][   T73]      ipv6_find_idev+0x102/0x170
[  639.990033][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  639.990033][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  639.990033][   T73]      netlink_rcv_skb+0x130/0x360
[  639.990033][   T73]      netlink_unicast+0x449/0x710
[  639.990033][   T73]      netlink_sendmsg+0x723/0xbe0
[  639.990033][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  639.990033][   T73]      ___sys_sendmsg+0xee/0x170
[  639.990033][   T73]      __sys_sendmsg+0xcd/0x170
[  639.990033][   T73]      do_syscall_64+0xc6/0x1e0
[  639.990033][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  639.990033][   T73] 
[  639.991600][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  639.991600][   T73]      neigh_parms_alloc+0x1e5/0x510
[  639.991600][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  639.991600][   T73]      ipv6_find_idev+0x102/0x170
[  639.991600][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  639.991600][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  639.991600][   T73]      netlink_rcv_skb+0x130/0x360
[  639.991600][   T73]      netlink_unicast+0x449/0x710
[  639.991600][   T73]      netlink_sendmsg+0x723/0xbe0
[  639.991600][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  639.991600][   T73]      ___sys_sendmsg+0xee/0x170
[  639.991600][   T73]      __sys_sendmsg+0xcd/0x170
[  639.991600][   T73]      do_syscall_64+0xc6/0x1e0
[  639.991600][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  639.991600][   T73] 
[  639.993331][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  639.993601][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  639.993601][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  639.993601][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  639.993601][   T73]      fib6_nh_init+0xa22/0x1580
[  639.993601][   T73]      ip6_route_info_create+0xf18/0x17d0
[  639.993601][   T73]      ip6_route_add+0x1c/0x140
[  639.993601][   T73]      inet6_rtm_newroute+0x104/0x110
[  639.993601][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  639.993601][   T73]      netlink_rcv_skb+0x130/0x360
[  639.993601][   T73]      netlink_unicast+0x449/0x710
[  639.993601][   T73]      netlink_sendmsg+0x723/0xbe0
[  639.993601][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  639.993601][   T73]      ___sys_sendmsg+0xee/0x170
[  639.993601][   T73]      __sys_sendmsg+0xcd/0x170
[  639.993601][   T73]      do_syscall_64+0xc6/0x1e0
[  639.993601][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  639.993601][   T73] 
[  639.995708][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  639.995708][   T73]      dst_init+0x84/0x4a0
[  639.995708][   T73]      dst_alloc+0x97/0x150
[  639.995708][   T73]      ip6_dst_alloc+0x23/0x90
[  639.995708][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  639.995708][   T73]      ip6_pol_route+0x56f/0x840
[  639.995708][   T73]      fib6_rule_lookup+0x456/0x630
[  639.995708][   T73]      ip6_route_input+0x59c/0xa50
[  639.995708][   T73]      ipv6_rcv+0x397/0x810
[  639.995708][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  639.995708][   T73]      process_backlog+0x101/0x620
[  639.995708][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  639.995708][   T73]      net_rx_action+0x495/0xbe0
[  639.995708][   T73]      __do_softirq+0x1b5/0x7f6
[  639.995708][   T73] 
[  639.997633][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  639.997633][   T73]      netdev_get_by_index+0x5e/0x80
[  639.997633][   T73]      fib6_nh_init+0x3d8/0x1580
[  639.997633][   T73]      ip6_route_info_create+0xf18/0x17d0
[  639.997633][   T73]      ip6_route_add+0x1c/0x140
[  639.997633][   T73]      addrconf_prefix_route+0x2a6/0x430
[  639.997633][   T73]      inet6_addr_add+0x4f8/0xa40
[  639.997633][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  639.997633][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  639.997633][   T73]      netlink_rcv_skb+0x130/0x360
[  639.997633][   T73]      netlink_unicast+0x449/0x710
[  639.997633][   T73]      netlink_sendmsg+0x723/0xbe0
[  639.997633][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  639.997633][   T73]      ___sys_sendmsg+0xee/0x170
[  639.997633][   T73]      __sys_sendmsg+0xcd/0x170
[  639.997633][   T73]      do_syscall_64+0xc6/0x1e0
[  639.997633][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  639.997633][   T73] 
[  639.999850][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  639.999850][   T73]      netdev_get_by_index+0x5e/0x80
[  639.999850][   T73]      fib6_nh_init+0x3d8/0x1580
[  639.999850][   T73]      ip6_route_info_create+0xf18/0x17d0
[  639.999850][   T73]      addrconf_f6i_alloc+0x315/0x560
[  639.999850][   T73]      ipv6_add_addr+0x411/0x2000
[  639.999850][   T73]      inet6_addr_add+0x30e/0xa40
[  639.999850][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  639.999850][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  639.999850][   T73]      netlink_rcv_skb+0x130/0x360
[  639.999850][   T73]      netlink_unicast+0x449/0x710
[  639.999850][   T73]      netlink_sendmsg+0x723/0xbe0
[  639.999850][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  639.999850][   T73]      ___sys_sendmsg+0xee/0x170
[  639.999850][   T73]      __sys_sendmsg+0xcd/0x170
[  639.999850][   T73]      do_syscall_64+0xc6/0x1e0
[  639.999850][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  639.999850][   T73] 
[  640.002166][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  640.002166][   T73]      netdev_get_by_index+0x5e/0x80
[  640.002166][   T73]      fib6_nh_init+0x3d8/0x1580
[  640.002166][   T73]      ip6_route_info_create+0xf18/0x17d0
[  640.002166][   T73]      ip6_route_add+0x1c/0x140
[  640.002166][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  640.002166][   T73]      addrconf_add_dev+0xe2/0x170
[  640.002166][   T73]      inet6_addr_add+0x12f/0xa40
[  640.002166][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  640.002166][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  640.002166][   T73]      netlink_rcv_skb+0x130/0x360
[  640.002166][   T73]      netlink_unicast+0x449/0x710
[  640.002166][   T73]      netlink_sendmsg+0x723/0xbe0
[  640.002166][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  640.002166][   T73]      ___sys_sendmsg+0xee/0x170
[  640.002166][   T73]      __sys_sendmsg+0xcd/0x170
[  640.002166][   T73]      do_syscall_64+0xc6/0x1e0
[  640.002166][   T73] 
[  640.004426][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  640.004426][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  640.004426][   T73]      ipv6_find_idev+0x102/0x170
[  640.004426][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  640.004426][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  640.004426][   T73]      netlink_rcv_skb+0x130/0x360
[  640.004426][   T73]      netlink_unicast+0x449/0x710
[  640.004426][   T73]      netlink_sendmsg+0x723/0xbe0
[  640.004426][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  640.004426][   T73]      ___sys_sendmsg+0xee/0x170
[  640.004426][   T73]      __sys_sendmsg+0xcd/0x170
[  640.004426][   T73]      do_syscall_64+0xc6/0x1e0
[  640.004426][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  640.004426][   T73] 
[  640.006233][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  640.006233][   T73]      neigh_parms_alloc+0x1e5/0x510
[  640.006233][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  640.006233][   T73]      ipv6_find_idev+0x102/0x170
[  640.006233][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  640.006233][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  640.006233][   T73]      netlink_rcv_skb+0x130/0x360
[  640.006233][   T73]      netlink_unicast+0x449/0x710
[  640.006233][   T73]      netlink_sendmsg+0x723/0xbe0
[  640.006233][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  640.006233][   T73]      ___sys_sendmsg+0xee/0x170
[  640.006233][   T73]      __sys_sendmsg+0xcd/0x170
[  640.006233][   T73]      do_syscall_64+0xc6/0x1e0
[  640.006233][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  640.006233][   T73] 
[  640.008131][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  640.008479][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  640.008479][   T73]      netdev_get_by_index+0x5e/0x80
[  640.008479][   T73]      fib6_nh_init+0x3d8/0x1580
[  640.008479][   T73]      ip6_route_info_create+0xf18/0x17d0
[  640.008479][   T73]      addrconf_f6i_alloc+0x265/0x560
[  640.008479][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  640.008479][   T73]      addrconf_join_anycast+0x1c0/0x220
[  640.008479][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  640.008479][   T73]      addrconf_dad_completed+0x12b/0xe20
[  640.008479][   T73]      addrconf_dad_begin+0x310/0x670
[  640.008479][   T73]      addrconf_dad_work+0x10b/0xab0
[  640.008479][   T73]      process_one_work+0x84d/0x18a0
[  640.008479][   T73]      worker_thread+0x587/0xd30
[  640.008479][   T73]      kthread+0x28a/0x350
[  640.008479][   T73]      ret_from_fork+0x31/0x70
[  640.008479][   T73]      ret_from_fork_asm+0x1a/0x30
[  640.008479][   T73] 
[  640.010576][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  640.010576][   T73]      netdev_get_by_index+0x5e/0x80
[  640.010576][   T73]      fib6_nh_init+0x3d8/0x1580
[  640.010576][   T73]      ip6_route_info_create+0xf18/0x17d0
[  640.010576][   T73]      ip6_route_add+0x1c/0x140
[  640.010576][   T73]      addrconf_prefix_route+0x2a6/0x430
[  640.010576][   T73]      inet6_addr_add+0x4f8/0xa40
[  640.010576][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  640.010576][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  640.010576][   T73]      netlink_rcv_skb+0x130/0x360
[  640.010576][   T73]      netlink_unicast+0x449/0x710
[  640.010576][   T73]      netlink_sendmsg+0x723/0xbe0
[  640.010576][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  640.010576][   T73]      ___sys_sendmsg+0xee/0x170
[  640.010576][   T73]      __sys_sendmsg+0xcd/0x170
[  640.010576][   T73]      do_syscall_64+0xc6/0x1e0
[  640.010576][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  640.010576][   T73] 
[  640.012874][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  640.012874][   T73]      netdev_get_by_index+0x5e/0x80
[  640.012874][   T73]      fib6_nh_init+0x3d8/0x1580
[  640.012874][   T73]      ip6_route_info_create+0xf18/0x17d0
[  640.012874][   T73]      addrconf_f6i_alloc+0x315/0x560
[  640.012874][   T73]      ipv6_add_addr+0x411/0x2000
[  640.012874][   T73]      inet6_addr_add+0x30e/0xa40
[  640.012874][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  640.012874][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  640.012874][   T73]      netlink_rcv_skb+0x130/0x360
[  640.012874][   T73]      netlink_unicast+0x449/0x710
[  640.012874][   T73]      netlink_sendmsg+0x723/0xbe0
[  640.012874][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  640.012874][   T73]      ___sys_sendmsg+0xee/0x170
[  640.012874][   T73]      __sys_sendmsg+0xcd/0x170
[  640.012874][   T73]      do_syscall_64+0xc6/0x1e0
[  640.012874][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  640.012874][   T73] 
[  640.015169][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  640.015169][   T73]      netdev_get_by_index+0x5e/0x80
[  640.015169][   T73]      fib6_nh_init+0x3d8/0x1580
[  640.015169][   T73]      ip6_route_info_create+0xf18/0x17d0
[  640.015169][   T73]      ip6_route_add+0x1c/0x140
[  640.015169][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  640.015169][   T73]      addrconf_add_dev+0xe2/0x170
[  640.015169][   T73]      inet6_addr_add+0x12f/0xa40
[  640.015169][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  640.015169][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  640.015169][   T73]      netlink_rcv_skb+0x130/0x360
[  640.015169][   T73]      netlink_unicast+0x449/0x710
[  640.015169][   T73]      netlink_sendmsg+0x723/0xbe0
[  640.015169][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  640.015169][   T73]      ___sys_sendmsg+0xee/0x170
[  640.015169][   T73]      __sys_sendmsg+0xcd/0x170
[  640.015169][   T73]      do_syscall_64+0xc6/0x1e0
[  640.015169][   T73] 
[  640.017498][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  640.017498][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  640.017498][   T73]      ipv6_find_idev+0x102/0x170
[  640.017498][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  640.017498][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  640.017498][   T73]      netlink_rcv_skb+0x130/0x360
[  640.017498][   T73]      netlink_unicast+0x449/0x710
[  640.017498][   T73]      netlink_sendmsg+0x723/0xbe0
[  640.017498][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  640.017498][   T73]      ___sys_sendmsg+0xee/0x170
[  640.017498][   T73]      __sys_sendmsg+0xcd/0x170
[  640.017498][   T73]      do_syscall_64+0xc6/0x1e0
[  640.017498][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  640.017498][   T73] 
[  640.019268][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  640.019268][   T73]      neigh_parms_alloc+0x1e5/0x510
[  640.019268][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  640.019268][   T73]      ipv6_find_idev+0x102/0x170
[  640.019268][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  640.019268][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  640.019268][   T73]      netlink_rcv_skb+0x130/0x360
[  640.019268][   T73]      netlink_unicast+0x449/0x710
[  640.019268][   T73]      netlink_sendmsg+0x723/0xbe0
[  640.019268][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  640.019268][   T73]      ___sys_sendmsg+0xee/0x170
[  640.019268][   T73]      __sys_sendmsg+0xcd/0x170
[  640.019268][   T73]      do_syscall_64+0xc6/0x1e0
[  640.019268][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  640.019268][   T73] 
[  650.263733][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  650.264145][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  650.264145][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  650.264145][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  650.264145][   T73]      fib6_nh_init+0xa22/0x1580
[  650.264145][   T73]      ip6_route_info_create+0xf18/0x17d0
[  650.264145][   T73]      ip6_route_add+0x1c/0x140
[  650.264145][   T73]      inet6_rtm_newroute+0x104/0x110
[  650.264145][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  650.264145][   T73]      netlink_rcv_skb+0x130/0x360
[  650.264145][   T73]      netlink_unicast+0x449/0x710
[  650.264145][   T73]      netlink_sendmsg+0x723/0xbe0
[  650.264145][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  650.264145][   T73]      ___sys_sendmsg+0xee/0x170
[  650.264145][   T73]      __sys_sendmsg+0xcd/0x170
[  650.264145][   T73]      do_syscall_64+0xc6/0x1e0
[  650.264145][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  650.264145][   T73] 
[  650.266158][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  650.266158][   T73]      dst_init+0x84/0x4a0
[  650.266158][   T73]      dst_alloc+0x97/0x150
[  650.266158][   T73]      ip6_dst_alloc+0x23/0x90
[  650.266158][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  650.266158][   T73]      ip6_pol_route+0x56f/0x840
[  650.266158][   T73]      fib6_rule_lookup+0x456/0x630
[  650.266158][   T73]      ip6_route_input+0x59c/0xa50
[  650.266158][   T73]      ipv6_rcv+0x397/0x810
[  650.266158][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  650.266158][   T73]      process_backlog+0x101/0x620
[  650.266158][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  650.266158][   T73]      net_rx_action+0x495/0xbe0
[  650.266158][   T73]      __do_softirq+0x1b5/0x7f6
[  650.266158][   T73] 
[  650.267820][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  650.267820][   T73]      netdev_get_by_index+0x5e/0x80
[  650.267820][   T73]      fib6_nh_init+0x3d8/0x1580
[  650.267820][   T73]      ip6_route_info_create+0xf18/0x17d0
[  650.267820][   T73]      ip6_route_add+0x1c/0x140
[  650.267820][   T73]      addrconf_prefix_route+0x2a6/0x430
[  650.267820][   T73]      inet6_addr_add+0x4f8/0xa40
[  650.267820][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  650.267820][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  650.267820][   T73]      netlink_rcv_skb+0x130/0x360
[  650.267820][   T73]      netlink_unicast+0x449/0x710
[  650.267820][   T73]      netlink_sendmsg+0x723/0xbe0
[  650.267820][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  650.267820][   T73]      ___sys_sendmsg+0xee/0x170
[  650.267820][   T73]      __sys_sendmsg+0xcd/0x170
[  650.267820][   T73]      do_syscall_64+0xc6/0x1e0
[  650.267820][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  650.267820][   T73] 
[  650.269868][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  650.269868][   T73]      netdev_get_by_index+0x5e/0x80
[  650.269868][   T73]      fib6_nh_init+0x3d8/0x1580
[  650.269868][   T73]      ip6_route_info_create+0xf18/0x17d0
[  650.269868][   T73]      addrconf_f6i_alloc+0x315/0x560
[  650.269868][   T73]      ipv6_add_addr+0x411/0x2000
[  650.269868][   T73]      inet6_addr_add+0x30e/0xa40
[  650.269868][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  650.269868][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  650.269868][   T73]      netlink_rcv_skb+0x130/0x360
[  650.269868][   T73]      netlink_unicast+0x449/0x710
[  650.269868][   T73]      netlink_sendmsg+0x723/0xbe0
[  650.269868][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  650.269868][   T73]      ___sys_sendmsg+0xee/0x170
[  650.269868][   T73]      __sys_sendmsg+0xcd/0x170
[  650.269868][   T73]      do_syscall_64+0xc6/0x1e0
[  650.269868][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  650.269868][   T73] 
[  650.271887][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  650.271887][   T73]      netdev_get_by_index+0x5e/0x80
[  650.271887][   T73]      fib6_nh_init+0x3d8/0x1580
[  650.271887][   T73]      ip6_route_info_create+0xf18/0x17d0
[  650.271887][   T73]      ip6_route_add+0x1c/0x140
[  650.271887][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  650.271887][   T73]      addrconf_add_dev+0xe2/0x170
[  650.271887][   T73]      inet6_addr_add+0x12f/0xa40
[  650.271887][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  650.271887][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  650.271887][   T73]      netlink_rcv_skb+0x130/0x360
[  650.271887][   T73]      netlink_unicast+0x449/0x710
[  650.271887][   T73]      netlink_sendmsg+0x723/0xbe0
[  650.271887][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  650.271887][   T73]      ___sys_sendmsg+0xee/0x170
[  650.271887][   T73]      __sys_sendmsg+0xcd/0x170
[  650.271887][   T73]      do_syscall_64+0xc6/0x1e0
[  650.271887][   T73] 
[  650.273897][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  650.273897][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  650.273897][   T73]      ipv6_find_idev+0x102/0x170
[  650.273897][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  650.273897][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  650.273897][   T73]      netlink_rcv_skb+0x130/0x360
[  650.273897][   T73]      netlink_unicast+0x449/0x710
[  650.273897][   T73]      netlink_sendmsg+0x723/0xbe0
[  650.273897][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  650.273897][   T73]      ___sys_sendmsg+0xee/0x170
[  650.273897][   T73]      __sys_sendmsg+0xcd/0x170
[  650.273897][   T73]      do_syscall_64+0xc6/0x1e0
[  650.273897][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  650.273897][   T73] 
[  650.275743][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  650.275743][   T73]      neigh_parms_alloc+0x1e5/0x510
[  650.275743][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  650.275743][   T73]      ipv6_find_idev+0x102/0x170
[  650.275743][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  650.275743][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  650.275743][   T73]      netlink_rcv_skb+0x130/0x360
[  650.275743][   T73]      netlink_unicast+0x449/0x710
[  650.275743][   T73]      netlink_sendmsg+0x723/0xbe0
[  650.275743][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  650.275743][   T73]      ___sys_sendmsg+0xee/0x170
[  650.275743][   T73]      __sys_sendmsg+0xcd/0x170
[  650.275743][   T73]      do_syscall_64+0xc6/0x1e0
[  650.275743][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  650.275743][   T73] 
[  650.278452][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  650.278897][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  650.278897][   T73]      netdev_get_by_index+0x5e/0x80
[  650.278897][   T73]      fib6_nh_init+0x3d8/0x1580
[  650.278897][   T73]      ip6_route_info_create+0xf18/0x17d0
[  650.278897][   T73]      addrconf_f6i_alloc+0x265/0x560
[  650.278897][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  650.278897][   T73]      addrconf_join_anycast+0x1c0/0x220
[  650.278897][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  650.278897][   T73]      addrconf_dad_completed+0x12b/0xe20
[  650.278897][   T73]      addrconf_dad_begin+0x310/0x670
[  650.278897][   T73]      addrconf_dad_work+0x10b/0xab0
[  650.278897][   T73]      process_one_work+0x84d/0x18a0
[  650.278897][   T73]      worker_thread+0x587/0xd30
[  650.278897][   T73]      kthread+0x28a/0x350
[  650.278897][   T73]      ret_from_fork+0x31/0x70
[  650.278897][   T73]      ret_from_fork_asm+0x1a/0x30
[  650.278897][   T73] 
[  650.281865][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  650.281865][   T73]      netdev_get_by_index+0x5e/0x80
[  650.281865][   T73]      fib6_nh_init+0x3d8/0x1580
[  650.281865][   T73]      ip6_route_info_create+0xf18/0x17d0
[  650.281865][   T73]      ip6_route_add+0x1c/0x140
[  650.281865][   T73]      addrconf_prefix_route+0x2a6/0x430
[  650.281865][   T73]      inet6_addr_add+0x4f8/0xa40
[  650.281865][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  650.281865][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  650.281865][   T73]      netlink_rcv_skb+0x130/0x360
[  650.281865][   T73]      netlink_unicast+0x449/0x710
[  650.281865][   T73]      netlink_sendmsg+0x723/0xbe0
[  650.281865][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  650.281865][   T73]      ___sys_sendmsg+0xee/0x170
[  650.281865][   T73]      __sys_sendmsg+0xcd/0x170
[  650.281865][   T73]      do_syscall_64+0xc6/0x1e0
[  650.281865][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  650.281865][   T73] 
[  650.285367][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  650.285367][   T73]      netdev_get_by_index+0x5e/0x80
[  650.285367][   T73]      fib6_nh_init+0x3d8/0x1580
[  650.285367][   T73]      ip6_route_info_create+0xf18/0x17d0
[  650.285367][   T73]      addrconf_f6i_alloc+0x315/0x560
[  650.285367][   T73]      ipv6_add_addr+0x411/0x2000
[  650.285367][   T73]      inet6_addr_add+0x30e/0xa40
[  650.285367][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  650.285367][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  650.285367][   T73]      netlink_rcv_skb+0x130/0x360
[  650.285367][   T73]      netlink_unicast+0x449/0x710
[  650.285367][   T73]      netlink_sendmsg+0x723/0xbe0
[  650.285367][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  650.285367][   T73]      ___sys_sendmsg+0xee/0x170
[  650.285367][   T73]      __sys_sendmsg+0xcd/0x170
[  650.285367][   T73]      do_syscall_64+0xc6/0x1e0
[  650.285367][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  650.285367][   T73] 
[  650.288392][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  650.288392][   T73]      netdev_get_by_index+0x5e/0x80
[  650.288392][   T73]      fib6_nh_init+0x3d8/0x1580
[  650.288392][   T73]      ip6_route_info_create+0xf18/0x17d0
[  650.288392][   T73]      ip6_route_add+0x1c/0x140
[  650.288392][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  650.288392][   T73]      addrconf_add_dev+0xe2/0x170
[  650.288392][   T73]      inet6_addr_add+0x12f/0xa40
[  650.288392][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  650.288392][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  650.288392][   T73]      netlink_rcv_skb+0x130/0x360
[  650.288392][   T73]      netlink_unicast+0x449/0x710
[  650.288392][   T73]      netlink_sendmsg+0x723/0xbe0
[  650.288392][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  650.288392][   T73]      ___sys_sendmsg+0xee/0x170
[  650.288392][   T73]      __sys_sendmsg+0xcd/0x170
[  650.288392][   T73]      do_syscall_64+0xc6/0x1e0
[  650.288392][   T73] 
[  650.291369][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  650.291369][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  650.291369][   T73]      ipv6_find_idev+0x102/0x170
[  650.291369][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  650.291369][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  650.291369][   T73]      netlink_rcv_skb+0x130/0x360
[  650.291369][   T73]      netlink_unicast+0x449/0x710
[  650.291369][   T73]      netlink_sendmsg+0x723/0xbe0
[  650.291369][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  650.291369][   T73]      ___sys_sendmsg+0xee/0x170
[  650.291369][   T73]      __sys_sendmsg+0xcd/0x170
[  650.291369][   T73]      do_syscall_64+0xc6/0x1e0
[  650.291369][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  650.291369][   T73] 
[  650.293187][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  650.293187][   T73]      neigh_parms_alloc+0x1e5/0x510
[  650.293187][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  650.293187][   T73]      ipv6_find_idev+0x102/0x170
[  650.293187][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  650.293187][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  650.293187][   T73]      netlink_rcv_skb+0x130/0x360
[  650.293187][   T73]      netlink_unicast+0x449/0x710
[  650.293187][   T73]      netlink_sendmsg+0x723/0xbe0
[  650.293187][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  650.293187][   T73]      ___sys_sendmsg+0xee/0x170
[  650.293187][   T73]      __sys_sendmsg+0xcd/0x170
[  650.293187][   T73]      do_syscall_64+0xc6/0x1e0
[  650.293187][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  650.293187][   T73] 
[  650.294913][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  650.295203][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  650.295203][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  650.295203][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  650.295203][   T73]      fib6_nh_init+0xa22/0x1580
[  650.295203][   T73]      ip6_route_info_create+0xf18/0x17d0
[  650.295203][   T73]      ip6_route_add+0x1c/0x140
[  650.295203][   T73]      inet6_rtm_newroute+0x104/0x110
[  650.295203][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  650.295203][   T73]      netlink_rcv_skb+0x130/0x360
[  650.295203][   T73]      netlink_unicast+0x449/0x710
[  650.295203][   T73]      netlink_sendmsg+0x723/0xbe0
[  650.295203][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  650.295203][   T73]      ___sys_sendmsg+0xee/0x170
[  650.295203][   T73]      __sys_sendmsg+0xcd/0x170
[  650.295203][   T73]      do_syscall_64+0xc6/0x1e0
[  650.295203][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  650.295203][   T73] 
[  650.297280][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  650.297280][   T73]      dst_init+0x84/0x4a0
[  650.297280][   T73]      dst_alloc+0x97/0x150
[  650.297280][   T73]      ip6_dst_alloc+0x23/0x90
[  650.297280][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  650.297280][   T73]      ip6_pol_route+0x56f/0x840
[  650.297280][   T73]      fib6_rule_lookup+0x456/0x630
[  650.297280][   T73]      ip6_route_input+0x59c/0xa50
[  650.297280][   T73]      ipv6_rcv+0x397/0x810
[  650.297280][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  650.297280][   T73]      process_backlog+0x101/0x620
[  650.297280][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  650.297280][   T73]      net_rx_action+0x495/0xbe0
[  650.297280][   T73]      __do_softirq+0x1b5/0x7f6
[  650.297280][   T73] 
[  650.299111][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  650.299111][   T73]      netdev_get_by_index+0x5e/0x80
[  650.299111][   T73]      fib6_nh_init+0x3d8/0x1580
[  650.299111][   T73]      ip6_route_info_create+0xf18/0x17d0
[  650.299111][   T73]      ip6_route_add+0x1c/0x140
[  650.299111][   T73]      addrconf_prefix_route+0x2a6/0x430
[  650.299111][   T73]      inet6_addr_add+0x4f8/0xa40
[  650.299111][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  650.299111][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  650.299111][   T73]      netlink_rcv_skb+0x130/0x360
[  650.299111][   T73]      netlink_unicast+0x449/0x710
[  650.299111][   T73]      netlink_sendmsg+0x723/0xbe0
[  650.299111][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  650.299111][   T73]      ___sys_sendmsg+0xee/0x170
[  650.299111][   T73]      __sys_sendmsg+0xcd/0x170
[  650.299111][   T73]      do_syscall_64+0xc6/0x1e0
[  650.299111][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  650.299111][   T73] 
[  650.301376][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  650.301376][   T73]      netdev_get_by_index+0x5e/0x80
[  650.301376][   T73]      fib6_nh_init+0x3d8/0x1580
[  650.301376][   T73]      ip6_route_info_create+0xf18/0x17d0
[  650.301376][   T73]      addrconf_f6i_alloc+0x315/0x560
[  650.301376][   T73]      ipv6_add_addr+0x411/0x2000
[  650.301376][   T73]      inet6_addr_add+0x30e/0xa40
[  650.301376][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  650.301376][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  650.301376][   T73]      netlink_rcv_skb+0x130/0x360
[  650.301376][   T73]      netlink_unicast+0x449/0x710
[  650.301376][   T73]      netlink_sendmsg+0x723/0xbe0
[  650.301376][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  650.301376][   T73]      ___sys_sendmsg+0xee/0x170
[  650.301376][   T73]      __sys_sendmsg+0xcd/0x170
[  650.301376][   T73]      do_syscall_64+0xc6/0x1e0
[  650.301376][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  650.301376][   T73] 
[  650.303708][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  650.303708][   T73]      netdev_get_by_index+0x5e/0x80
[  650.303708][   T73]      fib6_nh_init+0x3d8/0x1580
[  650.303708][   T73]      ip6_route_info_create+0xf18/0x17d0
[  650.303708][   T73]      ip6_route_add+0x1c/0x140
[  650.303708][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  650.303708][   T73]      addrconf_add_dev+0xe2/0x170
[  650.303708][   T73]      inet6_addr_add+0x12f/0xa40
[  650.303708][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  650.303708][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  650.303708][   T73]      netlink_rcv_skb+0x130/0x360
[  650.303708][   T73]      netlink_unicast+0x449/0x710
[  650.303708][   T73]      netlink_sendmsg+0x723/0xbe0
[  650.303708][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  650.303708][   T73]      ___sys_sendmsg+0xee/0x170
[  650.303708][   T73]      __sys_sendmsg+0xcd/0x170
[  650.303708][   T73]      do_syscall_64+0xc6/0x1e0
[  650.303708][   T73] 
[  650.306012][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  650.306012][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  650.306012][   T73]      ipv6_find_idev+0x102/0x170
[  650.306012][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  650.306012][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  650.306012][   T73]      netlink_rcv_skb+0x130/0x360
[  650.306012][   T73]      netlink_unicast+0x449/0x710
[  650.306012][   T73]      netlink_sendmsg+0x723/0xbe0
[  650.306012][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  650.306012][   T73]      ___sys_sendmsg+0xee/0x170
[  650.306012][   T73]      __sys_sendmsg+0xcd/0x170
[  650.306012][   T73]      do_syscall_64+0xc6/0x1e0
[  650.306012][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  650.306012][   T73] 
[  650.307811][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  650.307811][   T73]      neigh_parms_alloc+0x1e5/0x510
[  650.307811][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  650.307811][   T73]      ipv6_find_idev+0x102/0x170
[  650.307811][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  650.307811][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  650.307811][   T73]      netlink_rcv_skb+0x130/0x360
[  650.307811][   T73]      netlink_unicast+0x449/0x710
[  650.307811][   T73]      netlink_sendmsg+0x723/0xbe0
[  650.307811][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  650.307811][   T73]      ___sys_sendmsg+0xee/0x170
[  650.307811][   T73]      __sys_sendmsg+0xcd/0x170
[  650.307811][   T73]      do_syscall_64+0xc6/0x1e0
[  650.307811][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  650.307811][   T73] 
[  650.309792][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  650.310072][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  650.310072][   T73]      netdev_get_by_index+0x5e/0x80
[  650.310072][   T73]      fib6_nh_init+0x3d8/0x1580
[  650.310072][   T73]      ip6_route_info_create+0xf18/0x17d0
[  650.310072][   T73]      addrconf_f6i_alloc+0x265/0x560
[  650.310072][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  650.310072][   T73]      addrconf_join_anycast+0x1c0/0x220
[  650.310072][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  650.310072][   T73]      addrconf_dad_completed+0x12b/0xe20
[  650.310072][   T73]      addrconf_dad_begin+0x310/0x670
[  650.310072][   T73]      addrconf_dad_work+0x10b/0xab0
[  650.310072][   T73]      process_one_work+0x84d/0x18a0
[  650.310072][   T73]      worker_thread+0x587/0xd30
[  650.310072][   T73]      kthread+0x28a/0x350
[  650.310072][   T73]      ret_from_fork+0x31/0x70
[  650.310072][   T73]      ret_from_fork_asm+0x1a/0x30
[  650.310072][   T73] 
[  650.312247][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  650.312247][   T73]      netdev_get_by_index+0x5e/0x80
[  650.312247][   T73]      fib6_nh_init+0x3d8/0x1580
[  650.312247][   T73]      ip6_route_info_create+0xf18/0x17d0
[  650.312247][   T73]      ip6_route_add+0x1c/0x140
[  650.312247][   T73]      addrconf_prefix_route+0x2a6/0x430
[  650.312247][   T73]      inet6_addr_add+0x4f8/0xa40
[  650.312247][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  650.312247][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  650.312247][   T73]      netlink_rcv_skb+0x130/0x360
[  650.312247][   T73]      netlink_unicast+0x449/0x710
[  650.312247][   T73]      netlink_sendmsg+0x723/0xbe0
[  650.312247][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  650.312247][   T73]      ___sys_sendmsg+0xee/0x170
[  650.312247][   T73]      __sys_sendmsg+0xcd/0x170
[  650.312247][   T73]      do_syscall_64+0xc6/0x1e0
[  650.312247][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  650.312247][   T73] 
[  650.314503][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  650.314503][   T73]      netdev_get_by_index+0x5e/0x80
[  650.314503][   T73]      fib6_nh_init+0x3d8/0x1580
[  650.314503][   T73]      ip6_route_info_create+0xf18/0x17d0
[  650.314503][   T73]      addrconf_f6i_alloc+0x315/0x560
[  650.314503][   T73]      ipv6_add_addr+0x411/0x2000
[  650.314503][   T73]      inet6_addr_add+0x30e/0xa40
[  650.314503][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  650.314503][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  650.314503][   T73]      netlink_rcv_skb+0x130/0x360
[  650.314503][   T73]      netlink_unicast+0x449/0x710
[  650.314503][   T73]      netlink_sendmsg+0x723/0xbe0
[  650.314503][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  650.314503][   T73]      ___sys_sendmsg+0xee/0x170
[  650.314503][   T73]      __sys_sendmsg+0xcd/0x170
[  650.314503][   T73]      do_syscall_64+0xc6/0x1e0
[  650.314503][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  650.314503][   T73] 
[  650.316758][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  650.316758][   T73]      netdev_get_by_index+0x5e/0x80
[  650.316758][   T73]      fib6_nh_init+0x3d8/0x1580
[  650.316758][   T73]      ip6_route_info_create+0xf18/0x17d0
[  650.316758][   T73]      ip6_route_add+0x1c/0x140
[  650.316758][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  650.316758][   T73]      addrconf_add_dev+0xe2/0x170
[  650.316758][   T73]      inet6_addr_add+0x12f/0xa40
[  650.316758][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  650.316758][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  650.316758][   T73]      netlink_rcv_skb+0x130/0x360
[  650.316758][   T73]      netlink_unicast+0x449/0x710
[  650.316758][   T73]      netlink_sendmsg+0x723/0xbe0
[  650.316758][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  650.316758][   T73]      ___sys_sendmsg+0xee/0x170
[  650.316758][   T73]      __sys_sendmsg+0xcd/0x170
[  650.316758][   T73]      do_syscall_64+0xc6/0x1e0
[  650.316758][   T73] 
[  650.318978][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  650.318978][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  650.318978][   T73]      ipv6_find_idev+0x102/0x170
[  650.318978][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  650.318978][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  650.318978][   T73]      netlink_rcv_skb+0x130/0x360
[  650.318978][   T73]      netlink_unicast+0x449/0x710
[  650.318978][   T73]      netlink_sendmsg+0x723/0xbe0
[  650.318978][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  650.318978][   T73]      ___sys_sendmsg+0xee/0x170
[  650.318978][   T73]      __sys_sendmsg+0xcd/0x170
[  650.318978][   T73]      do_syscall_64+0xc6/0x1e0
[  650.318978][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  650.318978][   T73] 
[  650.320712][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  650.320712][   T73]      neigh_parms_alloc+0x1e5/0x510
[  650.320712][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  650.320712][   T73]      ipv6_find_idev+0x102/0x170
[  650.320712][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  650.320712][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  650.320712][   T73]      netlink_rcv_skb+0x130/0x360
[  650.320712][   T73]      netlink_unicast+0x449/0x710
[  650.320712][   T73]      netlink_sendmsg+0x723/0xbe0
[  650.320712][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  650.320712][   T73]      ___sys_sendmsg+0xee/0x170
[  650.320712][   T73]      __sys_sendmsg+0xcd/0x170
[  650.320712][   T73]      do_syscall_64+0xc6/0x1e0
[  650.320712][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  650.320712][   T73] 
[  660.335782][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  660.336180][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  660.336180][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  660.336180][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  660.336180][   T73]      fib6_nh_init+0xa22/0x1580
[  660.336180][   T73]      ip6_route_info_create+0xf18/0x17d0
[  660.336180][   T73]      ip6_route_add+0x1c/0x140
[  660.336180][   T73]      inet6_rtm_newroute+0x104/0x110
[  660.336180][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  660.336180][   T73]      netlink_rcv_skb+0x130/0x360
[  660.336180][   T73]      netlink_unicast+0x449/0x710
[  660.336180][   T73]      netlink_sendmsg+0x723/0xbe0
[  660.336180][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  660.336180][   T73]      ___sys_sendmsg+0xee/0x170
[  660.336180][   T73]      __sys_sendmsg+0xcd/0x170
[  660.336180][   T73]      do_syscall_64+0xc6/0x1e0
[  660.336180][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  660.336180][   T73] 
[  660.338171][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  660.338171][   T73]      dst_init+0x84/0x4a0
[  660.338171][   T73]      dst_alloc+0x97/0x150
[  660.338171][   T73]      ip6_dst_alloc+0x23/0x90
[  660.338171][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  660.338171][   T73]      ip6_pol_route+0x56f/0x840
[  660.338171][   T73]      fib6_rule_lookup+0x456/0x630
[  660.338171][   T73]      ip6_route_input+0x59c/0xa50
[  660.338171][   T73]      ipv6_rcv+0x397/0x810
[  660.338171][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  660.338171][   T73]      process_backlog+0x101/0x620
[  660.338171][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  660.338171][   T73]      net_rx_action+0x495/0xbe0
[  660.338171][   T73]      __do_softirq+0x1b5/0x7f6
[  660.338171][   T73] 
[  660.339918][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  660.339918][   T73]      netdev_get_by_index+0x5e/0x80
[  660.339918][   T73]      fib6_nh_init+0x3d8/0x1580
[  660.339918][   T73]      ip6_route_info_create+0xf18/0x17d0
[  660.339918][   T73]      ip6_route_add+0x1c/0x140
[  660.339918][   T73]      addrconf_prefix_route+0x2a6/0x430
[  660.339918][   T73]      inet6_addr_add+0x4f8/0xa40
[  660.339918][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  660.339918][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  660.339918][   T73]      netlink_rcv_skb+0x130/0x360
[  660.339918][   T73]      netlink_unicast+0x449/0x710
[  660.339918][   T73]      netlink_sendmsg+0x723/0xbe0
[  660.339918][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  660.339918][   T73]      ___sys_sendmsg+0xee/0x170
[  660.339918][   T73]      __sys_sendmsg+0xcd/0x170
[  660.339918][   T73]      do_syscall_64+0xc6/0x1e0
[  660.339918][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  660.339918][   T73] 
[  660.342020][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  660.342020][   T73]      netdev_get_by_index+0x5e/0x80
[  660.342020][   T73]      fib6_nh_init+0x3d8/0x1580
[  660.342020][   T73]      ip6_route_info_create+0xf18/0x17d0
[  660.342020][   T73]      addrconf_f6i_alloc+0x315/0x560
[  660.342020][   T73]      ipv6_add_addr+0x411/0x2000
[  660.342020][   T73]      inet6_addr_add+0x30e/0xa40
[  660.342020][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  660.342020][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  660.342020][   T73]      netlink_rcv_skb+0x130/0x360
[  660.342020][   T73]      netlink_unicast+0x449/0x710
[  660.342020][   T73]      netlink_sendmsg+0x723/0xbe0
[  660.342020][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  660.342020][   T73]      ___sys_sendmsg+0xee/0x170
[  660.342020][   T73]      __sys_sendmsg+0xcd/0x170
[  660.342020][   T73]      do_syscall_64+0xc6/0x1e0
[  660.342020][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  660.342020][   T73] 
[  660.344174][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  660.344174][   T73]      netdev_get_by_index+0x5e/0x80
[  660.344174][   T73]      fib6_nh_init+0x3d8/0x1580
[  660.344174][   T73]      ip6_route_info_create+0xf18/0x17d0
[  660.344174][   T73]      ip6_route_add+0x1c/0x140
[  660.344174][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  660.344174][   T73]      addrconf_add_dev+0xe2/0x170
[  660.344174][   T73]      inet6_addr_add+0x12f/0xa40
[  660.344174][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  660.344174][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  660.344174][   T73]      netlink_rcv_skb+0x130/0x360
[  660.344174][   T73]      netlink_unicast+0x449/0x710
[  660.344174][   T73]      netlink_sendmsg+0x723/0xbe0
[  660.344174][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  660.344174][   T73]      ___sys_sendmsg+0xee/0x170
[  660.344174][   T73]      __sys_sendmsg+0xcd/0x170
[  660.344174][   T73]      do_syscall_64+0xc6/0x1e0
[  660.344174][   T73] 
[  660.346265][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  660.346265][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  660.346265][   T73]      ipv6_find_idev+0x102/0x170
[  660.346265][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  660.346265][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  660.346265][   T73]      netlink_rcv_skb+0x130/0x360
[  660.346265][   T73]      netlink_unicast+0x449/0x710
[  660.346265][   T73]      netlink_sendmsg+0x723/0xbe0
[  660.346265][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  660.346265][   T73]      ___sys_sendmsg+0xee/0x170
[  660.346265][   T73]      __sys_sendmsg+0xcd/0x170
[  660.346265][   T73]      do_syscall_64+0xc6/0x1e0
[  660.346265][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  660.346265][   T73] 
[  660.347882][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  660.347882][   T73]      neigh_parms_alloc+0x1e5/0x510
[  660.347882][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  660.347882][   T73]      ipv6_find_idev+0x102/0x170
[  660.347882][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  660.347882][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  660.347882][   T73]      netlink_rcv_skb+0x130/0x360
[  660.347882][   T73]      netlink_unicast+0x449/0x710
[  660.347882][   T73]      netlink_sendmsg+0x723/0xbe0
[  660.347882][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  660.347882][   T73]      ___sys_sendmsg+0xee/0x170
[  660.347882][   T73]      __sys_sendmsg+0xcd/0x170
[  660.347882][   T73]      do_syscall_64+0xc6/0x1e0
[  660.347882][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  660.347882][   T73] 
[  660.349630][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  660.349930][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  660.349930][   T73]      netdev_get_by_index+0x5e/0x80
[  660.349930][   T73]      fib6_nh_init+0x3d8/0x1580
[  660.349930][   T73]      ip6_route_info_create+0xf18/0x17d0
[  660.349930][   T73]      addrconf_f6i_alloc+0x265/0x560
[  660.349930][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  660.349930][   T73]      addrconf_join_anycast+0x1c0/0x220
[  660.349930][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  660.349930][   T73]      addrconf_dad_completed+0x12b/0xe20
[  660.349930][   T73]      addrconf_dad_begin+0x310/0x670
[  660.349930][   T73]      addrconf_dad_work+0x10b/0xab0
[  660.349930][   T73]      process_one_work+0x84d/0x18a0
[  660.349930][   T73]      worker_thread+0x587/0xd30
[  660.349930][   T73]      kthread+0x28a/0x350
[  660.349930][   T73]      ret_from_fork+0x31/0x70
[  660.349930][   T73]      ret_from_fork_asm+0x1a/0x30
[  660.349930][   T73] 
[  660.351889][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  660.351889][   T73]      netdev_get_by_index+0x5e/0x80
[  660.351889][   T73]      fib6_nh_init+0x3d8/0x1580
[  660.351889][   T73]      ip6_route_info_create+0xf18/0x17d0
[  660.351889][   T73]      ip6_route_add+0x1c/0x140
[  660.351889][   T73]      addrconf_prefix_route+0x2a6/0x430
[  660.351889][   T73]      inet6_addr_add+0x4f8/0xa40
[  660.351889][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  660.351889][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  660.351889][   T73]      netlink_rcv_skb+0x130/0x360
[  660.351889][   T73]      netlink_unicast+0x449/0x710
[  660.351889][   T73]      netlink_sendmsg+0x723/0xbe0
[  660.351889][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  660.351889][   T73]      ___sys_sendmsg+0xee/0x170
[  660.351889][   T73]      __sys_sendmsg+0xcd/0x170
[  660.351889][   T73]      do_syscall_64+0xc6/0x1e0
[  660.351889][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  660.351889][   T73] 
[  660.353938][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  660.353938][   T73]      netdev_get_by_index+0x5e/0x80
[  660.353938][   T73]      fib6_nh_init+0x3d8/0x1580
[  660.353938][   T73]      ip6_route_info_create+0xf18/0x17d0
[  660.353938][   T73]      addrconf_f6i_alloc+0x315/0x560
[  660.353938][   T73]      ipv6_add_addr+0x411/0x2000
[  660.353938][   T73]      inet6_addr_add+0x30e/0xa40
[  660.353938][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  660.353938][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  660.353938][   T73]      netlink_rcv_skb+0x130/0x360
[  660.353938][   T73]      netlink_unicast+0x449/0x710
[  660.353938][   T73]      netlink_sendmsg+0x723/0xbe0
[  660.353938][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  660.353938][   T73]      ___sys_sendmsg+0xee/0x170
[  660.353938][   T73]      __sys_sendmsg+0xcd/0x170
[  660.353938][   T73]      do_syscall_64+0xc6/0x1e0
[  660.353938][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  660.353938][   T73] 
[  660.356033][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  660.356033][   T73]      netdev_get_by_index+0x5e/0x80
[  660.356033][   T73]      fib6_nh_init+0x3d8/0x1580
[  660.356033][   T73]      ip6_route_info_create+0xf18/0x17d0
[  660.356033][   T73]      ip6_route_add+0x1c/0x140
[  660.356033][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  660.356033][   T73]      addrconf_add_dev+0xe2/0x170
[  660.356033][   T73]      inet6_addr_add+0x12f/0xa40
[  660.356033][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  660.356033][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  660.356033][   T73]      netlink_rcv_skb+0x130/0x360
[  660.356033][   T73]      netlink_unicast+0x449/0x710
[  660.356033][   T73]      netlink_sendmsg+0x723/0xbe0
[  660.356033][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  660.356033][   T73]      ___sys_sendmsg+0xee/0x170
[  660.356033][   T73]      __sys_sendmsg+0xcd/0x170
[  660.356033][   T73]      do_syscall_64+0xc6/0x1e0
[  660.356033][   T73] 
[  660.358108][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  660.358108][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  660.358108][   T73]      ipv6_find_idev+0x102/0x170
[  660.358108][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  660.358108][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  660.358108][   T73]      netlink_rcv_skb+0x130/0x360
[  660.358108][   T73]      netlink_unicast+0x449/0x710
[  660.358108][   T73]      netlink_sendmsg+0x723/0xbe0
[  660.358108][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  660.358108][   T73]      ___sys_sendmsg+0xee/0x170
[  660.358108][   T73]      __sys_sendmsg+0xcd/0x170
[  660.358108][   T73]      do_syscall_64+0xc6/0x1e0
[  660.358108][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  660.358108][   T73] 
[  660.359712][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  660.359712][   T73]      neigh_parms_alloc+0x1e5/0x510
[  660.359712][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  660.359712][   T73]      ipv6_find_idev+0x102/0x170
[  660.359712][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  660.359712][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  660.359712][   T73]      netlink_rcv_skb+0x130/0x360
[  660.359712][   T73]      netlink_unicast+0x449/0x710
[  660.359712][   T73]      netlink_sendmsg+0x723/0xbe0
[  660.359712][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  660.359712][   T73]      ___sys_sendmsg+0xee/0x170
[  660.359712][   T73]      __sys_sendmsg+0xcd/0x170
[  660.359712][   T73]      do_syscall_64+0xc6/0x1e0
[  660.359712][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  660.359712][   T73] 
[  660.362506][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  660.362817][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  660.362817][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  660.362817][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  660.362817][   T73]      fib6_nh_init+0xa22/0x1580
[  660.362817][   T73]      ip6_route_info_create+0xf18/0x17d0
[  660.362817][   T73]      ip6_route_add+0x1c/0x140
[  660.362817][   T73]      inet6_rtm_newroute+0x104/0x110
[  660.362817][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  660.362817][   T73]      netlink_rcv_skb+0x130/0x360
[  660.362817][   T73]      netlink_unicast+0x449/0x710
[  660.362817][   T73]      netlink_sendmsg+0x723/0xbe0
[  660.362817][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  660.362817][   T73]      ___sys_sendmsg+0xee/0x170
[  660.362817][   T73]      __sys_sendmsg+0xcd/0x170
[  660.362817][   T73]      do_syscall_64+0xc6/0x1e0
[  660.362817][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  660.362817][   T73] 
[  660.364935][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  660.364935][   T73]      dst_init+0x84/0x4a0
[  660.364935][   T73]      dst_alloc+0x97/0x150
[  660.364935][   T73]      ip6_dst_alloc+0x23/0x90
[  660.364935][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  660.364935][   T73]      ip6_pol_route+0x56f/0x840
[  660.364935][   T73]      fib6_rule_lookup+0x456/0x630
[  660.364935][   T73]      ip6_route_input+0x59c/0xa50
[  660.364935][   T73]      ipv6_rcv+0x397/0x810
[  660.364935][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  660.364935][   T73]      process_backlog+0x101/0x620
[  660.364935][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  660.364935][   T73]      net_rx_action+0x495/0xbe0
[  660.364935][   T73]      __do_softirq+0x1b5/0x7f6
[  660.364935][   T73] 
[  660.366866][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  660.366866][   T73]      netdev_get_by_index+0x5e/0x80
[  660.366866][   T73]      fib6_nh_init+0x3d8/0x1580
[  660.366866][   T73]      ip6_route_info_create+0xf18/0x17d0
[  660.366866][   T73]      ip6_route_add+0x1c/0x140
[  660.366866][   T73]      addrconf_prefix_route+0x2a6/0x430
[  660.366866][   T73]      inet6_addr_add+0x4f8/0xa40
[  660.366866][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  660.366866][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  660.366866][   T73]      netlink_rcv_skb+0x130/0x360
[  660.366866][   T73]      netlink_unicast+0x449/0x710
[  660.366866][   T73]      netlink_sendmsg+0x723/0xbe0
[  660.366866][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  660.366866][   T73]      ___sys_sendmsg+0xee/0x170
[  660.366866][   T73]      __sys_sendmsg+0xcd/0x170
[  660.366866][   T73]      do_syscall_64+0xc6/0x1e0
[  660.366866][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  660.366866][   T73] 
[  660.369184][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  660.369184][   T73]      netdev_get_by_index+0x5e/0x80
[  660.369184][   T73]      fib6_nh_init+0x3d8/0x1580
[  660.369184][   T73]      ip6_route_info_create+0xf18/0x17d0
[  660.369184][   T73]      addrconf_f6i_alloc+0x315/0x560
[  660.369184][   T73]      ipv6_add_addr+0x411/0x2000
[  660.369184][   T73]      inet6_addr_add+0x30e/0xa40
[  660.369184][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  660.369184][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  660.369184][   T73]      netlink_rcv_skb+0x130/0x360
[  660.369184][   T73]      netlink_unicast+0x449/0x710
[  660.369184][   T73]      netlink_sendmsg+0x723/0xbe0
[  660.369184][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  660.369184][   T73]      ___sys_sendmsg+0xee/0x170
[  660.369184][   T73]      __sys_sendmsg+0xcd/0x170
[  660.369184][   T73]      do_syscall_64+0xc6/0x1e0
[  660.369184][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  660.369184][   T73] 
[  660.371362][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  660.371362][   T73]      netdev_get_by_index+0x5e/0x80
[  660.371362][   T73]      fib6_nh_init+0x3d8/0x1580
[  660.371362][   T73]      ip6_route_info_create+0xf18/0x17d0
[  660.371362][   T73]      ip6_route_add+0x1c/0x140
[  660.371362][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  660.371362][   T73]      addrconf_add_dev+0xe2/0x170
[  660.371362][   T73]      inet6_addr_add+0x12f/0xa40
[  660.371362][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  660.371362][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  660.371362][   T73]      netlink_rcv_skb+0x130/0x360
[  660.371362][   T73]      netlink_unicast+0x449/0x710
[  660.371362][   T73]      netlink_sendmsg+0x723/0xbe0
[  660.371362][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  660.371362][   T73]      ___sys_sendmsg+0xee/0x170
[  660.371362][   T73]      __sys_sendmsg+0xcd/0x170
[  660.371362][   T73]      do_syscall_64+0xc6/0x1e0
[  660.371362][   T73] 
[  660.373644][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  660.373644][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  660.373644][   T73]      ipv6_find_idev+0x102/0x170
[  660.373644][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  660.373644][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  660.373644][   T73]      netlink_rcv_skb+0x130/0x360
[  660.373644][   T73]      netlink_unicast+0x449/0x710
[  660.373644][   T73]      netlink_sendmsg+0x723/0xbe0
[  660.373644][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  660.373644][   T73]      ___sys_sendmsg+0xee/0x170
[  660.373644][   T73]      __sys_sendmsg+0xcd/0x170
[  660.373644][   T73]      do_syscall_64+0xc6/0x1e0
[  660.373644][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  660.373644][   T73] 
[  660.375517][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  660.375517][   T73]      neigh_parms_alloc+0x1e5/0x510
[  660.375517][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  660.375517][   T73]      ipv6_find_idev+0x102/0x170
[  660.375517][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  660.375517][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  660.375517][   T73]      netlink_rcv_skb+0x130/0x360
[  660.375517][   T73]      netlink_unicast+0x449/0x710
[  660.375517][   T73]      netlink_sendmsg+0x723/0xbe0
[  660.375517][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  660.375517][   T73]      ___sys_sendmsg+0xee/0x170
[  660.375517][   T73]      __sys_sendmsg+0xcd/0x170
[  660.375517][   T73]      do_syscall_64+0xc6/0x1e0
[  660.375517][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  660.375517][   T73] 
[  660.377487][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  660.378383][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  660.378383][   T73]      netdev_get_by_index+0x5e/0x80
[  660.378383][   T73]      fib6_nh_init+0x3d8/0x1580
[  660.378383][   T73]      ip6_route_info_create+0xf18/0x17d0
[  660.378383][   T73]      addrconf_f6i_alloc+0x265/0x560
[  660.378383][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  660.378383][   T73]      addrconf_join_anycast+0x1c0/0x220
[  660.378383][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  660.378383][   T73]      addrconf_dad_completed+0x12b/0xe20
[  660.378383][   T73]      addrconf_dad_begin+0x310/0x670
[  660.378383][   T73]      addrconf_dad_work+0x10b/0xab0
[  660.378383][   T73]      process_one_work+0x84d/0x18a0
[  660.378383][   T73]      worker_thread+0x587/0xd30
[  660.378383][   T73]      kthread+0x28a/0x350
[  660.378383][   T73]      ret_from_fork+0x31/0x70
[  660.378383][   T73]      ret_from_fork_asm+0x1a/0x30
[  660.378383][   T73] 
[  660.380397][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  660.380397][   T73]      netdev_get_by_index+0x5e/0x80
[  660.380397][   T73]      fib6_nh_init+0x3d8/0x1580
[  660.380397][   T73]      ip6_route_info_create+0xf18/0x17d0
[  660.380397][   T73]      ip6_route_add+0x1c/0x140
[  660.380397][   T73]      addrconf_prefix_route+0x2a6/0x430
[  660.380397][   T73]      inet6_addr_add+0x4f8/0xa40
[  660.380397][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  660.380397][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  660.380397][   T73]      netlink_rcv_skb+0x130/0x360
[  660.380397][   T73]      netlink_unicast+0x449/0x710
[  660.380397][   T73]      netlink_sendmsg+0x723/0xbe0
[  660.380397][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  660.380397][   T73]      ___sys_sendmsg+0xee/0x170
[  660.380397][   T73]      __sys_sendmsg+0xcd/0x170
[  660.380397][   T73]      do_syscall_64+0xc6/0x1e0
[  660.380397][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  660.380397][   T73] 
[  660.382624][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  660.382624][   T73]      netdev_get_by_index+0x5e/0x80
[  660.382624][   T73]      fib6_nh_init+0x3d8/0x1580
[  660.382624][   T73]      ip6_route_info_create+0xf18/0x17d0
[  660.382624][   T73]      addrconf_f6i_alloc+0x315/0x560
[  660.382624][   T73]      ipv6_add_addr+0x411/0x2000
[  660.382624][   T73]      inet6_addr_add+0x30e/0xa40
[  660.382624][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  660.382624][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  660.382624][   T73]      netlink_rcv_skb+0x130/0x360
[  660.382624][   T73]      netlink_unicast+0x449/0x710
[  660.382624][   T73]      netlink_sendmsg+0x723/0xbe0
[  660.382624][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  660.382624][   T73]      ___sys_sendmsg+0xee/0x170
[  660.382624][   T73]      __sys_sendmsg+0xcd/0x170
[  660.382624][   T73]      do_syscall_64+0xc6/0x1e0
[  660.382624][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  660.382624][   T73] 
[  660.385002][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  660.385002][   T73]      netdev_get_by_index+0x5e/0x80
[  660.385002][   T73]      fib6_nh_init+0x3d8/0x1580
[  660.385002][   T73]      ip6_route_info_create+0xf18/0x17d0
[  660.385002][   T73]      ip6_route_add+0x1c/0x140
[  660.385002][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  660.385002][   T73]      addrconf_add_dev+0xe2/0x170
[  660.385002][   T73]      inet6_addr_add+0x12f/0xa40
[  660.385002][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  660.385002][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  660.385002][   T73]      netlink_rcv_skb+0x130/0x360
[  660.385002][   T73]      netlink_unicast+0x449/0x710
[  660.385002][   T73]      netlink_sendmsg+0x723/0xbe0
[  660.385002][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  660.385002][   T73]      ___sys_sendmsg+0xee/0x170
[  660.385002][   T73]      __sys_sendmsg+0xcd/0x170
[  660.385002][   T73]      do_syscall_64+0xc6/0x1e0
[  660.385002][   T73] 
[  660.387278][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  660.387278][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  660.387278][   T73]      ipv6_find_idev+0x102/0x170
[  660.387278][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  660.387278][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  660.387278][   T73]      netlink_rcv_skb+0x130/0x360
[  660.387278][   T73]      netlink_unicast+0x449/0x710
[  660.387278][   T73]      netlink_sendmsg+0x723/0xbe0
[  660.387278][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  660.387278][   T73]      ___sys_sendmsg+0xee/0x170
[  660.387278][   T73]      __sys_sendmsg+0xcd/0x170
[  660.387278][   T73]      do_syscall_64+0xc6/0x1e0
[  660.387278][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  660.387278][   T73] 
[  660.389019][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  660.389019][   T73]      neigh_parms_alloc+0x1e5/0x510
[  660.389019][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  660.389019][   T73]      ipv6_find_idev+0x102/0x170
[  660.389019][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  660.389019][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  660.389019][   T73]      netlink_rcv_skb+0x130/0x360
[  660.389019][   T73]      netlink_unicast+0x449/0x710
[  660.389019][   T73]      netlink_sendmsg+0x723/0xbe0
[  660.389019][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  660.389019][   T73]      ___sys_sendmsg+0xee/0x170
[  660.389019][   T73]      __sys_sendmsg+0xcd/0x170
[  660.389019][   T73]      do_syscall_64+0xc6/0x1e0
[  660.389019][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  660.389019][   T73] 
[  670.551717][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  670.552305][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  670.552305][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  670.552305][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  670.552305][   T73]      fib6_nh_init+0xa22/0x1580
[  670.552305][   T73]      ip6_route_info_create+0xf18/0x17d0
[  670.552305][   T73]      ip6_route_add+0x1c/0x140
[  670.552305][   T73]      inet6_rtm_newroute+0x104/0x110
[  670.552305][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  670.552305][   T73]      netlink_rcv_skb+0x130/0x360
[  670.552305][   T73]      netlink_unicast+0x449/0x710
[  670.552305][   T73]      netlink_sendmsg+0x723/0xbe0
[  670.552305][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  670.552305][   T73]      ___sys_sendmsg+0xee/0x170
[  670.552305][   T73]      __sys_sendmsg+0xcd/0x170
[  670.552305][   T73]      do_syscall_64+0xc6/0x1e0
[  670.552305][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  670.552305][   T73] 
[  670.555444][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  670.555444][   T73]      dst_init+0x84/0x4a0
[  670.555444][   T73]      dst_alloc+0x97/0x150
[  670.555444][   T73]      ip6_dst_alloc+0x23/0x90
[  670.555444][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  670.555444][   T73]      ip6_pol_route+0x56f/0x840
[  670.555444][   T73]      fib6_rule_lookup+0x456/0x630
[  670.555444][   T73]      ip6_route_input+0x59c/0xa50
[  670.555444][   T73]      ipv6_rcv+0x397/0x810
[  670.555444][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  670.555444][   T73]      process_backlog+0x101/0x620
[  670.555444][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  670.555444][   T73]      net_rx_action+0x495/0xbe0
[  670.555444][   T73]      __do_softirq+0x1b5/0x7f6
[  670.555444][   T73] 
[  670.558061][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  670.558061][   T73]      netdev_get_by_index+0x5e/0x80
[  670.558061][   T73]      fib6_nh_init+0x3d8/0x1580
[  670.558061][   T73]      ip6_route_info_create+0xf18/0x17d0
[  670.558061][   T73]      ip6_route_add+0x1c/0x140
[  670.558061][   T73]      addrconf_prefix_route+0x2a6/0x430
[  670.558061][   T73]      inet6_addr_add+0x4f8/0xa40
[  670.558061][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  670.558061][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  670.558061][   T73]      netlink_rcv_skb+0x130/0x360
[  670.558061][   T73]      netlink_unicast+0x449/0x710
[  670.558061][   T73]      netlink_sendmsg+0x723/0xbe0
[  670.558061][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  670.558061][   T73]      ___sys_sendmsg+0xee/0x170
[  670.558061][   T73]      __sys_sendmsg+0xcd/0x170
[  670.558061][   T73]      do_syscall_64+0xc6/0x1e0
[  670.558061][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  670.558061][   T73] 
[  670.561137][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  670.561137][   T73]      netdev_get_by_index+0x5e/0x80
[  670.561137][   T73]      fib6_nh_init+0x3d8/0x1580
[  670.561137][   T73]      ip6_route_info_create+0xf18/0x17d0
[  670.561137][   T73]      addrconf_f6i_alloc+0x315/0x560
[  670.561137][   T73]      ipv6_add_addr+0x411/0x2000
[  670.561137][   T73]      inet6_addr_add+0x30e/0xa40
[  670.561137][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  670.561137][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  670.561137][   T73]      netlink_rcv_skb+0x130/0x360
[  670.561137][   T73]      netlink_unicast+0x449/0x710
[  670.561137][   T73]      netlink_sendmsg+0x723/0xbe0
[  670.561137][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  670.561137][   T73]      ___sys_sendmsg+0xee/0x170
[  670.561137][   T73]      __sys_sendmsg+0xcd/0x170
[  670.561137][   T73]      do_syscall_64+0xc6/0x1e0
[  670.561137][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  670.561137][   T73] 
[  670.564225][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  670.564225][   T73]      netdev_get_by_index+0x5e/0x80
[  670.564225][   T73]      fib6_nh_init+0x3d8/0x1580
[  670.564225][   T73]      ip6_route_info_create+0xf18/0x17d0
[  670.564225][   T73]      ip6_route_add+0x1c/0x140
[  670.564225][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  670.564225][   T73]      addrconf_add_dev+0xe2/0x170
[  670.564225][   T73]      inet6_addr_add+0x12f/0xa40
[  670.564225][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  670.564225][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  670.564225][   T73]      netlink_rcv_skb+0x130/0x360
[  670.564225][   T73]      netlink_unicast+0x449/0x710
[  670.564225][   T73]      netlink_sendmsg+0x723/0xbe0
[  670.564225][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  670.564225][   T73]      ___sys_sendmsg+0xee/0x170
[  670.564225][   T73]      __sys_sendmsg+0xcd/0x170
[  670.564225][   T73]      do_syscall_64+0xc6/0x1e0
[  670.564225][   T73] 
[  670.567094][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  670.567094][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  670.567094][   T73]      ipv6_find_idev+0x102/0x170
[  670.567094][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  670.567094][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  670.567094][   T73]      netlink_rcv_skb+0x130/0x360
[  670.567094][   T73]      netlink_unicast+0x449/0x710
[  670.567094][   T73]      netlink_sendmsg+0x723/0xbe0
[  670.567094][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  670.567094][   T73]      ___sys_sendmsg+0xee/0x170
[  670.567094][   T73]      __sys_sendmsg+0xcd/0x170
[  670.567094][   T73]      do_syscall_64+0xc6/0x1e0
[  670.567094][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  670.567094][   T73] 
[  670.568728][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  670.568728][   T73]      neigh_parms_alloc+0x1e5/0x510
[  670.568728][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  670.568728][   T73]      ipv6_find_idev+0x102/0x170
[  670.568728][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  670.568728][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  670.568728][   T73]      netlink_rcv_skb+0x130/0x360
[  670.568728][   T73]      netlink_unicast+0x449/0x710
[  670.568728][   T73]      netlink_sendmsg+0x723/0xbe0
[  670.568728][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  670.568728][   T73]      ___sys_sendmsg+0xee/0x170
[  670.568728][   T73]      __sys_sendmsg+0xcd/0x170
[  670.568728][   T73]      do_syscall_64+0xc6/0x1e0
[  670.568728][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  670.568728][   T73] 
[  670.570493][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  670.570816][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  670.570816][   T73]      netdev_get_by_index+0x5e/0x80
[  670.570816][   T73]      fib6_nh_init+0x3d8/0x1580
[  670.570816][   T73]      ip6_route_info_create+0xf18/0x17d0
[  670.570816][   T73]      addrconf_f6i_alloc+0x265/0x560
[  670.570816][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  670.570816][   T73]      addrconf_join_anycast+0x1c0/0x220
[  670.570816][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  670.570816][   T73]      addrconf_dad_completed+0x12b/0xe20
[  670.570816][   T73]      addrconf_dad_begin+0x310/0x670
[  670.570816][   T73]      addrconf_dad_work+0x10b/0xab0
[  670.570816][   T73]      process_one_work+0x84d/0x18a0
[  670.570816][   T73]      worker_thread+0x587/0xd30
[  670.570816][   T73]      kthread+0x28a/0x350
[  670.570816][   T73]      ret_from_fork+0x31/0x70
[  670.570816][   T73]      ret_from_fork_asm+0x1a/0x30
[  670.570816][   T73] 
[  670.572971][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  670.572971][   T73]      netdev_get_by_index+0x5e/0x80
[  670.572971][   T73]      fib6_nh_init+0x3d8/0x1580
[  670.572971][   T73]      ip6_route_info_create+0xf18/0x17d0
[  670.572971][   T73]      ip6_route_add+0x1c/0x140
[  670.572971][   T73]      addrconf_prefix_route+0x2a6/0x430
[  670.572971][   T73]      inet6_addr_add+0x4f8/0xa40
[  670.572971][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  670.572971][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  670.572971][   T73]      netlink_rcv_skb+0x130/0x360
[  670.572971][   T73]      netlink_unicast+0x449/0x710
[  670.572971][   T73]      netlink_sendmsg+0x723/0xbe0
[  670.572971][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  670.572971][   T73]      ___sys_sendmsg+0xee/0x170
[  670.572971][   T73]      __sys_sendmsg+0xcd/0x170
[  670.572971][   T73]      do_syscall_64+0xc6/0x1e0
[  670.572971][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  670.572971][   T73] 
[  670.575218][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  670.575218][   T73]      netdev_get_by_index+0x5e/0x80
[  670.575218][   T73]      fib6_nh_init+0x3d8/0x1580
[  670.575218][   T73]      ip6_route_info_create+0xf18/0x17d0
[  670.575218][   T73]      addrconf_f6i_alloc+0x315/0x560
[  670.575218][   T73]      ipv6_add_addr+0x411/0x2000
[  670.575218][   T73]      inet6_addr_add+0x30e/0xa40
[  670.575218][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  670.575218][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  670.575218][   T73]      netlink_rcv_skb+0x130/0x360
[  670.575218][   T73]      netlink_unicast+0x449/0x710
[  670.575218][   T73]      netlink_sendmsg+0x723/0xbe0
[  670.575218][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  670.575218][   T73]      ___sys_sendmsg+0xee/0x170
[  670.575218][   T73]      __sys_sendmsg+0xcd/0x170
[  670.575218][   T73]      do_syscall_64+0xc6/0x1e0
[  670.575218][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  670.575218][   T73] 
[  670.577255][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  670.577255][   T73]      netdev_get_by_index+0x5e/0x80
[  670.577255][   T73]      fib6_nh_init+0x3d8/0x1580
[  670.577255][   T73]      ip6_route_info_create+0xf18/0x17d0
[  670.577255][   T73]      ip6_route_add+0x1c/0x140
[  670.577255][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  670.577255][   T73]      addrconf_add_dev+0xe2/0x170
[  670.577255][   T73]      inet6_addr_add+0x12f/0xa40
[  670.577255][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  670.577255][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  670.577255][   T73]      netlink_rcv_skb+0x130/0x360
[  670.577255][   T73]      netlink_unicast+0x449/0x710
[  670.577255][   T73]      netlink_sendmsg+0x723/0xbe0
[  670.577255][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  670.577255][   T73]      ___sys_sendmsg+0xee/0x170
[  670.577255][   T73]      __sys_sendmsg+0xcd/0x170
[  670.577255][   T73]      do_syscall_64+0xc6/0x1e0
[  670.577255][   T73] 
[  670.579294][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  670.579294][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  670.579294][   T73]      ipv6_find_idev+0x102/0x170
[  670.579294][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  670.579294][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  670.579294][   T73]      netlink_rcv_skb+0x130/0x360
[  670.579294][   T73]      netlink_unicast+0x449/0x710
[  670.579294][   T73]      netlink_sendmsg+0x723/0xbe0
[  670.579294][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  670.579294][   T73]      ___sys_sendmsg+0xee/0x170
[  670.579294][   T73]      __sys_sendmsg+0xcd/0x170
[  670.579294][   T73]      do_syscall_64+0xc6/0x1e0
[  670.579294][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  670.579294][   T73] 
[  670.581128][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  670.581128][   T73]      neigh_parms_alloc+0x1e5/0x510
[  670.581128][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  670.581128][   T73]      ipv6_find_idev+0x102/0x170
[  670.581128][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  670.581128][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  670.581128][   T73]      netlink_rcv_skb+0x130/0x360
[  670.581128][   T73]      netlink_unicast+0x449/0x710
[  670.581128][   T73]      netlink_sendmsg+0x723/0xbe0
[  670.581128][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  670.581128][   T73]      ___sys_sendmsg+0xee/0x170
[  670.581128][   T73]      __sys_sendmsg+0xcd/0x170
[  670.581128][   T73]      do_syscall_64+0xc6/0x1e0
[  670.581128][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  670.581128][   T73] 
[  670.583062][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  670.583334][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  670.583334][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  670.583334][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  670.583334][   T73]      fib6_nh_init+0xa22/0x1580
[  670.583334][   T73]      ip6_route_info_create+0xf18/0x17d0
[  670.583334][   T73]      ip6_route_add+0x1c/0x140
[  670.583334][   T73]      inet6_rtm_newroute+0x104/0x110
[  670.583334][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  670.583334][   T73]      netlink_rcv_skb+0x130/0x360
[  670.583334][   T73]      netlink_unicast+0x449/0x710
[  670.583334][   T73]      netlink_sendmsg+0x723/0xbe0
[  670.583334][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  670.583334][   T73]      ___sys_sendmsg+0xee/0x170
[  670.583334][   T73]      __sys_sendmsg+0xcd/0x170
[  670.583334][   T73]      do_syscall_64+0xc6/0x1e0
[  670.583334][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  670.583334][   T73] 
[  670.585362][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  670.585362][   T73]      dst_init+0x84/0x4a0
[  670.585362][   T73]      dst_alloc+0x97/0x150
[  670.585362][   T73]      ip6_dst_alloc+0x23/0x90
[  670.585362][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  670.585362][   T73]      ip6_pol_route+0x56f/0x840
[  670.585362][   T73]      fib6_rule_lookup+0x456/0x630
[  670.585362][   T73]      ip6_route_input+0x59c/0xa50
[  670.585362][   T73]      ipv6_rcv+0x397/0x810
[  670.585362][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  670.585362][   T73]      process_backlog+0x101/0x620
[  670.585362][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  670.585362][   T73]      net_rx_action+0x495/0xbe0
[  670.585362][   T73]      __do_softirq+0x1b5/0x7f6
[  670.585362][   T73] 
[  670.587188][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  670.587188][   T73]      netdev_get_by_index+0x5e/0x80
[  670.587188][   T73]      fib6_nh_init+0x3d8/0x1580
[  670.587188][   T73]      ip6_route_info_create+0xf18/0x17d0
[  670.587188][   T73]      ip6_route_add+0x1c/0x140
[  670.587188][   T73]      addrconf_prefix_route+0x2a6/0x430
[  670.587188][   T73]      inet6_addr_add+0x4f8/0xa40
[  670.587188][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  670.587188][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  670.587188][   T73]      netlink_rcv_skb+0x130/0x360
[  670.587188][   T73]      netlink_unicast+0x449/0x710
[  670.587188][   T73]      netlink_sendmsg+0x723/0xbe0
[  670.587188][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  670.587188][   T73]      ___sys_sendmsg+0xee/0x170
[  670.587188][   T73]      __sys_sendmsg+0xcd/0x170
[  670.587188][   T73]      do_syscall_64+0xc6/0x1e0
[  670.587188][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  670.587188][   T73] 
[  670.589539][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  670.589539][   T73]      netdev_get_by_index+0x5e/0x80
[  670.589539][   T73]      fib6_nh_init+0x3d8/0x1580
[  670.589539][   T73]      ip6_route_info_create+0xf18/0x17d0
[  670.589539][   T73]      addrconf_f6i_alloc+0x315/0x560
[  670.589539][   T73]      ipv6_add_addr+0x411/0x2000
[  670.589539][   T73]      inet6_addr_add+0x30e/0xa40
[  670.589539][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  670.589539][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  670.589539][   T73]      netlink_rcv_skb+0x130/0x360
[  670.589539][   T73]      netlink_unicast+0x449/0x710
[  670.589539][   T73]      netlink_sendmsg+0x723/0xbe0
[  670.589539][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  670.589539][   T73]      ___sys_sendmsg+0xee/0x170
[  670.589539][   T73]      __sys_sendmsg+0xcd/0x170
[  670.589539][   T73]      do_syscall_64+0xc6/0x1e0
[  670.589539][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  670.589539][   T73] 
[  670.591739][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  670.591739][   T73]      netdev_get_by_index+0x5e/0x80
[  670.591739][   T73]      fib6_nh_init+0x3d8/0x1580
[  670.591739][   T73]      ip6_route_info_create+0xf18/0x17d0
[  670.591739][   T73]      ip6_route_add+0x1c/0x140
[  670.591739][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  670.591739][   T73]      addrconf_add_dev+0xe2/0x170
[  670.591739][   T73]      inet6_addr_add+0x12f/0xa40
[  670.591739][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  670.591739][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  670.591739][   T73]      netlink_rcv_skb+0x130/0x360
[  670.591739][   T73]      netlink_unicast+0x449/0x710
[  670.591739][   T73]      netlink_sendmsg+0x723/0xbe0
[  670.591739][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  670.591739][   T73]      ___sys_sendmsg+0xee/0x170
[  670.591739][   T73]      __sys_sendmsg+0xcd/0x170
[  670.591739][   T73]      do_syscall_64+0xc6/0x1e0
[  670.591739][   T73] 
[  670.594028][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  670.594028][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  670.594028][   T73]      ipv6_find_idev+0x102/0x170
[  670.594028][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  670.594028][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  670.594028][   T73]      netlink_rcv_skb+0x130/0x360
[  670.594028][   T73]      netlink_unicast+0x449/0x710
[  670.594028][   T73]      netlink_sendmsg+0x723/0xbe0
[  670.594028][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  670.594028][   T73]      ___sys_sendmsg+0xee/0x170
[  670.594028][   T73]      __sys_sendmsg+0xcd/0x170
[  670.594028][   T73]      do_syscall_64+0xc6/0x1e0
[  670.594028][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  670.594028][   T73] 
[  670.595767][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  670.595767][   T73]      neigh_parms_alloc+0x1e5/0x510
[  670.595767][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  670.595767][   T73]      ipv6_find_idev+0x102/0x170
[  670.595767][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  670.595767][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  670.595767][   T73]      netlink_rcv_skb+0x130/0x360
[  670.595767][   T73]      netlink_unicast+0x449/0x710
[  670.595767][   T73]      netlink_sendmsg+0x723/0xbe0
[  670.595767][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  670.595767][   T73]      ___sys_sendmsg+0xee/0x170
[  670.595767][   T73]      __sys_sendmsg+0xcd/0x170
[  670.595767][   T73]      do_syscall_64+0xc6/0x1e0
[  670.595767][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  670.595767][   T73] 
[  670.598134][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  670.598410][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  670.598410][   T73]      netdev_get_by_index+0x5e/0x80
[  670.598410][   T73]      fib6_nh_init+0x3d8/0x1580
[  670.598410][   T73]      ip6_route_info_create+0xf18/0x17d0
[  670.598410][   T73]      addrconf_f6i_alloc+0x265/0x560
[  670.598410][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  670.598410][   T73]      addrconf_join_anycast+0x1c0/0x220
[  670.598410][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  670.598410][   T73]      addrconf_dad_completed+0x12b/0xe20
[  670.598410][   T73]      addrconf_dad_begin+0x310/0x670
[  670.598410][   T73]      addrconf_dad_work+0x10b/0xab0
[  670.598410][   T73]      process_one_work+0x84d/0x18a0
[  670.598410][   T73]      worker_thread+0x587/0xd30
[  670.598410][   T73]      kthread+0x28a/0x350
[  670.598410][   T73]      ret_from_fork+0x31/0x70
[  670.598410][   T73]      ret_from_fork_asm+0x1a/0x30
[  670.598410][   T73] 
[  670.600391][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  670.600391][   T73]      netdev_get_by_index+0x5e/0x80
[  670.600391][   T73]      fib6_nh_init+0x3d8/0x1580
[  670.600391][   T73]      ip6_route_info_create+0xf18/0x17d0
[  670.600391][   T73]      ip6_route_add+0x1c/0x140
[  670.600391][   T73]      addrconf_prefix_route+0x2a6/0x430
[  670.600391][   T73]      inet6_addr_add+0x4f8/0xa40
[  670.600391][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  670.600391][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  670.600391][   T73]      netlink_rcv_skb+0x130/0x360
[  670.600391][   T73]      netlink_unicast+0x449/0x710
[  670.600391][   T73]      netlink_sendmsg+0x723/0xbe0
[  670.600391][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  670.600391][   T73]      ___sys_sendmsg+0xee/0x170
[  670.600391][   T73]      __sys_sendmsg+0xcd/0x170
[  670.600391][   T73]      do_syscall_64+0xc6/0x1e0
[  670.600391][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  670.600391][   T73] 
[  670.602608][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  670.602608][   T73]      netdev_get_by_index+0x5e/0x80
[  670.602608][   T73]      fib6_nh_init+0x3d8/0x1580
[  670.602608][   T73]      ip6_route_info_create+0xf18/0x17d0
[  670.602608][   T73]      addrconf_f6i_alloc+0x315/0x560
[  670.602608][   T73]      ipv6_add_addr+0x411/0x2000
[  670.602608][   T73]      inet6_addr_add+0x30e/0xa40
[  670.602608][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  670.602608][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  670.602608][   T73]      netlink_rcv_skb+0x130/0x360
[  670.602608][   T73]      netlink_unicast+0x449/0x710
[  670.602608][   T73]      netlink_sendmsg+0x723/0xbe0
[  670.602608][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  670.602608][   T73]      ___sys_sendmsg+0xee/0x170
[  670.602608][   T73]      __sys_sendmsg+0xcd/0x170
[  670.602608][   T73]      do_syscall_64+0xc6/0x1e0
[  670.602608][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  670.602608][   T73] 
[  670.605005][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  670.605005][   T73]      netdev_get_by_index+0x5e/0x80
[  670.605005][   T73]      fib6_nh_init+0x3d8/0x1580
[  670.605005][   T73]      ip6_route_info_create+0xf18/0x17d0
[  670.605005][   T73]      ip6_route_add+0x1c/0x140
[  670.605005][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  670.605005][   T73]      addrconf_add_dev+0xe2/0x170
[  670.605005][   T73]      inet6_addr_add+0x12f/0xa40
[  670.605005][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  670.605005][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  670.605005][   T73]      netlink_rcv_skb+0x130/0x360
[  670.605005][   T73]      netlink_unicast+0x449/0x710
[  670.605005][   T73]      netlink_sendmsg+0x723/0xbe0
[  670.605005][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  670.605005][   T73]      ___sys_sendmsg+0xee/0x170
[  670.605005][   T73]      __sys_sendmsg+0xcd/0x170
[  670.605005][   T73]      do_syscall_64+0xc6/0x1e0
[  670.605005][   T73] 
[  670.607339][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  670.607339][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  670.607339][   T73]      ipv6_find_idev+0x102/0x170
[  670.607339][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  670.607339][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  670.607339][   T73]      netlink_rcv_skb+0x130/0x360
[  670.607339][   T73]      netlink_unicast+0x449/0x710
[  670.607339][   T73]      netlink_sendmsg+0x723/0xbe0
[  670.607339][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  670.607339][   T73]      ___sys_sendmsg+0xee/0x170
[  670.607339][   T73]      __sys_sendmsg+0xcd/0x170
[  670.607339][   T73]      do_syscall_64+0xc6/0x1e0
[  670.607339][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  670.607339][   T73] 
[  670.609148][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  670.609148][   T73]      neigh_parms_alloc+0x1e5/0x510
[  670.609148][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  670.609148][   T73]      ipv6_find_idev+0x102/0x170
[  670.609148][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  670.609148][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  670.609148][   T73]      netlink_rcv_skb+0x130/0x360
[  670.609148][   T73]      netlink_unicast+0x449/0x710
[  670.609148][   T73]      netlink_sendmsg+0x723/0xbe0
[  670.609148][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  670.609148][   T73]      ___sys_sendmsg+0xee/0x170
[  670.609148][   T73]      __sys_sendmsg+0xcd/0x170
[  670.609148][   T73]      do_syscall_64+0xc6/0x1e0
[  670.609148][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  670.609148][   T73] 
[  680.639726][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  680.640145][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  680.640145][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  680.640145][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  680.640145][   T73]      fib6_nh_init+0xa22/0x1580
[  680.640145][   T73]      ip6_route_info_create+0xf18/0x17d0
[  680.640145][   T73]      ip6_route_add+0x1c/0x140
[  680.640145][   T73]      inet6_rtm_newroute+0x104/0x110
[  680.640145][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  680.640145][   T73]      netlink_rcv_skb+0x130/0x360
[  680.640145][   T73]      netlink_unicast+0x449/0x710
[  680.640145][   T73]      netlink_sendmsg+0x723/0xbe0
[  680.640145][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  680.640145][   T73]      ___sys_sendmsg+0xee/0x170
[  680.640145][   T73]      __sys_sendmsg+0xcd/0x170
[  680.640145][   T73]      do_syscall_64+0xc6/0x1e0
[  680.640145][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  680.640145][   T73] 
[  680.642196][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  680.642196][   T73]      dst_init+0x84/0x4a0
[  680.642196][   T73]      dst_alloc+0x97/0x150
[  680.642196][   T73]      ip6_dst_alloc+0x23/0x90
[  680.642196][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  680.642196][   T73]      ip6_pol_route+0x56f/0x840
[  680.642196][   T73]      fib6_rule_lookup+0x456/0x630
[  680.642196][   T73]      ip6_route_input+0x59c/0xa50
[  680.642196][   T73]      ipv6_rcv+0x397/0x810
[  680.642196][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  680.642196][   T73]      process_backlog+0x101/0x620
[  680.642196][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  680.642196][   T73]      net_rx_action+0x495/0xbe0
[  680.642196][   T73]      __do_softirq+0x1b5/0x7f6
[  680.642196][   T73] 
[  680.643916][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  680.643916][   T73]      netdev_get_by_index+0x5e/0x80
[  680.643916][   T73]      fib6_nh_init+0x3d8/0x1580
[  680.643916][   T73]      ip6_route_info_create+0xf18/0x17d0
[  680.643916][   T73]      ip6_route_add+0x1c/0x140
[  680.643916][   T73]      addrconf_prefix_route+0x2a6/0x430
[  680.643916][   T73]      inet6_addr_add+0x4f8/0xa40
[  680.643916][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  680.643916][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  680.643916][   T73]      netlink_rcv_skb+0x130/0x360
[  680.643916][   T73]      netlink_unicast+0x449/0x710
[  680.643916][   T73]      netlink_sendmsg+0x723/0xbe0
[  680.643916][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  680.643916][   T73]      ___sys_sendmsg+0xee/0x170
[  680.643916][   T73]      __sys_sendmsg+0xcd/0x170
[  680.643916][   T73]      do_syscall_64+0xc6/0x1e0
[  680.643916][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  680.643916][   T73] 
[  680.646058][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  680.646058][   T73]      netdev_get_by_index+0x5e/0x80
[  680.646058][   T73]      fib6_nh_init+0x3d8/0x1580
[  680.646058][   T73]      ip6_route_info_create+0xf18/0x17d0
[  680.646058][   T73]      addrconf_f6i_alloc+0x315/0x560
[  680.646058][   T73]      ipv6_add_addr+0x411/0x2000
[  680.646058][   T73]      inet6_addr_add+0x30e/0xa40
[  680.646058][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  680.646058][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  680.646058][   T73]      netlink_rcv_skb+0x130/0x360
[  680.646058][   T73]      netlink_unicast+0x449/0x710
[  680.646058][   T73]      netlink_sendmsg+0x723/0xbe0
[  680.646058][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  680.646058][   T73]      ___sys_sendmsg+0xee/0x170
[  680.646058][   T73]      __sys_sendmsg+0xcd/0x170
[  680.646058][   T73]      do_syscall_64+0xc6/0x1e0
[  680.646058][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  680.646058][   T73] 
[  680.648064][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  680.648064][   T73]      netdev_get_by_index+0x5e/0x80
[  680.648064][   T73]      fib6_nh_init+0x3d8/0x1580
[  680.648064][   T73]      ip6_route_info_create+0xf18/0x17d0
[  680.648064][   T73]      ip6_route_add+0x1c/0x140
[  680.648064][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  680.648064][   T73]      addrconf_add_dev+0xe2/0x170
[  680.648064][   T73]      inet6_addr_add+0x12f/0xa40
[  680.648064][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  680.648064][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  680.648064][   T73]      netlink_rcv_skb+0x130/0x360
[  680.648064][   T73]      netlink_unicast+0x449/0x710
[  680.648064][   T73]      netlink_sendmsg+0x723/0xbe0
[  680.648064][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  680.648064][   T73]      ___sys_sendmsg+0xee/0x170
[  680.648064][   T73]      __sys_sendmsg+0xcd/0x170
[  680.648064][   T73]      do_syscall_64+0xc6/0x1e0
[  680.648064][   T73] 
[  680.650031][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  680.650031][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  680.650031][   T73]      ipv6_find_idev+0x102/0x170
[  680.650031][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  680.650031][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  680.650031][   T73]      netlink_rcv_skb+0x130/0x360
[  680.650031][   T73]      netlink_unicast+0x449/0x710
[  680.650031][   T73]      netlink_sendmsg+0x723/0xbe0
[  680.650031][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  680.650031][   T73]      ___sys_sendmsg+0xee/0x170
[  680.650031][   T73]      __sys_sendmsg+0xcd/0x170
[  680.650031][   T73]      do_syscall_64+0xc6/0x1e0
[  680.650031][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  680.650031][   T73] 
[  680.651570][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  680.651570][   T73]      neigh_parms_alloc+0x1e5/0x510
[  680.651570][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  680.651570][   T73]      ipv6_find_idev+0x102/0x170
[  680.651570][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  680.651570][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  680.651570][   T73]      netlink_rcv_skb+0x130/0x360
[  680.651570][   T73]      netlink_unicast+0x449/0x710
[  680.651570][   T73]      netlink_sendmsg+0x723/0xbe0
[  680.651570][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  680.651570][   T73]      ___sys_sendmsg+0xee/0x170
[  680.651570][   T73]      __sys_sendmsg+0xcd/0x170
[  680.651570][   T73]      do_syscall_64+0xc6/0x1e0
[  680.651570][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  680.651570][   T73] 
[  680.653310][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  680.653588][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  680.653588][   T73]      netdev_get_by_index+0x5e/0x80
[  680.653588][   T73]      fib6_nh_init+0x3d8/0x1580
[  680.653588][   T73]      ip6_route_info_create+0xf18/0x17d0
[  680.653588][   T73]      addrconf_f6i_alloc+0x265/0x560
[  680.653588][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  680.653588][   T73]      addrconf_join_anycast+0x1c0/0x220
[  680.653588][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  680.653588][   T73]      addrconf_dad_completed+0x12b/0xe20
[  680.653588][   T73]      addrconf_dad_begin+0x310/0x670
[  680.653588][   T73]      addrconf_dad_work+0x10b/0xab0
[  680.653588][   T73]      process_one_work+0x84d/0x18a0
[  680.653588][   T73]      worker_thread+0x587/0xd30
[  680.653588][   T73]      kthread+0x28a/0x350
[  680.653588][   T73]      ret_from_fork+0x31/0x70
[  680.653588][   T73]      ret_from_fork_asm+0x1a/0x30
[  680.653588][   T73] 
[  680.655575][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  680.655575][   T73]      netdev_get_by_index+0x5e/0x80
[  680.655575][   T73]      fib6_nh_init+0x3d8/0x1580
[  680.655575][   T73]      ip6_route_info_create+0xf18/0x17d0
[  680.655575][   T73]      ip6_route_add+0x1c/0x140
[  680.655575][   T73]      addrconf_prefix_route+0x2a6/0x430
[  680.655575][   T73]      inet6_addr_add+0x4f8/0xa40
[  680.655575][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  680.655575][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  680.655575][   T73]      netlink_rcv_skb+0x130/0x360
[  680.655575][   T73]      netlink_unicast+0x449/0x710
[  680.655575][   T73]      netlink_sendmsg+0x723/0xbe0
[  680.655575][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  680.655575][   T73]      ___sys_sendmsg+0xee/0x170
[  680.655575][   T73]      __sys_sendmsg+0xcd/0x170
[  680.655575][   T73]      do_syscall_64+0xc6/0x1e0
[  680.655575][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  680.655575][   T73] 
[  680.657707][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  680.657707][   T73]      netdev_get_by_index+0x5e/0x80
[  680.657707][   T73]      fib6_nh_init+0x3d8/0x1580
[  680.657707][   T73]      ip6_route_info_create+0xf18/0x17d0
[  680.657707][   T73]      addrconf_f6i_alloc+0x315/0x560
[  680.657707][   T73]      ipv6_add_addr+0x411/0x2000
[  680.657707][   T73]      inet6_addr_add+0x30e/0xa40
[  680.657707][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  680.657707][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  680.657707][   T73]      netlink_rcv_skb+0x130/0x360
[  680.657707][   T73]      netlink_unicast+0x449/0x710
[  680.657707][   T73]      netlink_sendmsg+0x723/0xbe0
[  680.657707][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  680.657707][   T73]      ___sys_sendmsg+0xee/0x170
[  680.657707][   T73]      __sys_sendmsg+0xcd/0x170
[  680.657707][   T73]      do_syscall_64+0xc6/0x1e0
[  680.657707][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  680.657707][   T73] 
[  680.659796][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  680.659796][   T73]      netdev_get_by_index+0x5e/0x80
[  680.659796][   T73]      fib6_nh_init+0x3d8/0x1580
[  680.659796][   T73]      ip6_route_info_create+0xf18/0x17d0
[  680.659796][   T73]      ip6_route_add+0x1c/0x140
[  680.659796][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  680.659796][   T73]      addrconf_add_dev+0xe2/0x170
[  680.659796][   T73]      inet6_addr_add+0x12f/0xa40
[  680.659796][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  680.659796][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  680.659796][   T73]      netlink_rcv_skb+0x130/0x360
[  680.659796][   T73]      netlink_unicast+0x449/0x710
[  680.659796][   T73]      netlink_sendmsg+0x723/0xbe0
[  680.659796][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  680.659796][   T73]      ___sys_sendmsg+0xee/0x170
[  680.659796][   T73]      __sys_sendmsg+0xcd/0x170
[  680.659796][   T73]      do_syscall_64+0xc6/0x1e0
[  680.659796][   T73] 
[  680.661882][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  680.661882][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  680.661882][   T73]      ipv6_find_idev+0x102/0x170
[  680.661882][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  680.661882][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  680.661882][   T73]      netlink_rcv_skb+0x130/0x360
[  680.661882][   T73]      netlink_unicast+0x449/0x710
[  680.661882][   T73]      netlink_sendmsg+0x723/0xbe0
[  680.661882][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  680.661882][   T73]      ___sys_sendmsg+0xee/0x170
[  680.661882][   T73]      __sys_sendmsg+0xcd/0x170
[  680.661882][   T73]      do_syscall_64+0xc6/0x1e0
[  680.661882][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  680.661882][   T73] 
[  680.663495][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  680.663495][   T73]      neigh_parms_alloc+0x1e5/0x510
[  680.663495][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  680.663495][   T73]      ipv6_find_idev+0x102/0x170
[  680.663495][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  680.663495][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  680.663495][   T73]      netlink_rcv_skb+0x130/0x360
[  680.663495][   T73]      netlink_unicast+0x449/0x710
[  680.663495][   T73]      netlink_sendmsg+0x723/0xbe0
[  680.663495][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  680.663495][   T73]      ___sys_sendmsg+0xee/0x170
[  680.663495][   T73]      __sys_sendmsg+0xcd/0x170
[  680.663495][   T73]      do_syscall_64+0xc6/0x1e0
[  680.663495][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  680.663495][   T73] 
[  680.665304][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  680.665612][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  680.665612][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  680.665612][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  680.665612][   T73]      fib6_nh_init+0xa22/0x1580
[  680.665612][   T73]      ip6_route_info_create+0xf18/0x17d0
[  680.665612][   T73]      ip6_route_add+0x1c/0x140
[  680.665612][   T73]      inet6_rtm_newroute+0x104/0x110
[  680.665612][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  680.665612][   T73]      netlink_rcv_skb+0x130/0x360
[  680.665612][   T73]      netlink_unicast+0x449/0x710
[  680.665612][   T73]      netlink_sendmsg+0x723/0xbe0
[  680.665612][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  680.665612][   T73]      ___sys_sendmsg+0xee/0x170
[  680.665612][   T73]      __sys_sendmsg+0xcd/0x170
[  680.665612][   T73]      do_syscall_64+0xc6/0x1e0
[  680.665612][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  680.665612][   T73] 
[  680.667708][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  680.667708][   T73]      dst_init+0x84/0x4a0
[  680.667708][   T73]      dst_alloc+0x97/0x150
[  680.667708][   T73]      ip6_dst_alloc+0x23/0x90
[  680.667708][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  680.667708][   T73]      ip6_pol_route+0x56f/0x840
[  680.667708][   T73]      fib6_rule_lookup+0x456/0x630
[  680.667708][   T73]      ip6_route_input+0x59c/0xa50
[  680.667708][   T73]      ipv6_rcv+0x397/0x810
[  680.667708][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  680.667708][   T73]      process_backlog+0x101/0x620
[  680.667708][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  680.667708][   T73]      net_rx_action+0x495/0xbe0
[  680.667708][   T73]      __do_softirq+0x1b5/0x7f6
[  680.667708][   T73] 
[  680.669572][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  680.669572][   T73]      netdev_get_by_index+0x5e/0x80
[  680.669572][   T73]      fib6_nh_init+0x3d8/0x1580
[  680.669572][   T73]      ip6_route_info_create+0xf18/0x17d0
[  680.669572][   T73]      ip6_route_add+0x1c/0x140
[  680.669572][   T73]      addrconf_prefix_route+0x2a6/0x430
[  680.669572][   T73]      inet6_addr_add+0x4f8/0xa40
[  680.669572][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  680.669572][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  680.669572][   T73]      netlink_rcv_skb+0x130/0x360
[  680.669572][   T73]      netlink_unicast+0x449/0x710
[  680.669572][   T73]      netlink_sendmsg+0x723/0xbe0
[  680.669572][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  680.669572][   T73]      ___sys_sendmsg+0xee/0x170
[  680.669572][   T73]      __sys_sendmsg+0xcd/0x170
[  680.669572][   T73]      do_syscall_64+0xc6/0x1e0
[  680.669572][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  680.669572][   T73] 
[  680.671802][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  680.671802][   T73]      netdev_get_by_index+0x5e/0x80
[  680.671802][   T73]      fib6_nh_init+0x3d8/0x1580
[  680.671802][   T73]      ip6_route_info_create+0xf18/0x17d0
[  680.671802][   T73]      addrconf_f6i_alloc+0x315/0x560
[  680.671802][   T73]      ipv6_add_addr+0x411/0x2000
[  680.671802][   T73]      inet6_addr_add+0x30e/0xa40
[  680.671802][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  680.671802][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  680.671802][   T73]      netlink_rcv_skb+0x130/0x360
[  680.671802][   T73]      netlink_unicast+0x449/0x710
[  680.671802][   T73]      netlink_sendmsg+0x723/0xbe0
[  680.671802][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  680.671802][   T73]      ___sys_sendmsg+0xee/0x170
[  680.671802][   T73]      __sys_sendmsg+0xcd/0x170
[  680.671802][   T73]      do_syscall_64+0xc6/0x1e0
[  680.671802][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  680.671802][   T73] 
[  680.674131][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  680.674131][   T73]      netdev_get_by_index+0x5e/0x80
[  680.674131][   T73]      fib6_nh_init+0x3d8/0x1580
[  680.674131][   T73]      ip6_route_info_create+0xf18/0x17d0
[  680.674131][   T73]      ip6_route_add+0x1c/0x140
[  680.674131][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  680.674131][   T73]      addrconf_add_dev+0xe2/0x170
[  680.674131][   T73]      inet6_addr_add+0x12f/0xa40
[  680.674131][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  680.674131][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  680.674131][   T73]      netlink_rcv_skb+0x130/0x360
[  680.674131][   T73]      netlink_unicast+0x449/0x710
[  680.674131][   T73]      netlink_sendmsg+0x723/0xbe0
[  680.674131][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  680.674131][   T73]      ___sys_sendmsg+0xee/0x170
[  680.674131][   T73]      __sys_sendmsg+0xcd/0x170
[  680.674131][   T73]      do_syscall_64+0xc6/0x1e0
[  680.674131][   T73] 
[  680.676336][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  680.676336][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  680.676336][   T73]      ipv6_find_idev+0x102/0x170
[  680.676336][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  680.676336][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  680.676336][   T73]      netlink_rcv_skb+0x130/0x360
[  680.676336][   T73]      netlink_unicast+0x449/0x710
[  680.676336][   T73]      netlink_sendmsg+0x723/0xbe0
[  680.676336][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  680.676336][   T73]      ___sys_sendmsg+0xee/0x170
[  680.676336][   T73]      __sys_sendmsg+0xcd/0x170
[  680.676336][   T73]      do_syscall_64+0xc6/0x1e0
[  680.676336][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  680.676336][   T73] 
[  680.677997][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  680.677997][   T73]      neigh_parms_alloc+0x1e5/0x510
[  680.677997][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  680.677997][   T73]      ipv6_find_idev+0x102/0x170
[  680.677997][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  680.677997][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  680.677997][   T73]      netlink_rcv_skb+0x130/0x360
[  680.677997][   T73]      netlink_unicast+0x449/0x710
[  680.677997][   T73]      netlink_sendmsg+0x723/0xbe0
[  680.677997][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  680.677997][   T73]      ___sys_sendmsg+0xee/0x170
[  680.677997][   T73]      __sys_sendmsg+0xcd/0x170
[  680.677997][   T73]      do_syscall_64+0xc6/0x1e0
[  680.677997][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  680.677997][   T73] 
[  680.679885][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  680.680223][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  680.680223][   T73]      netdev_get_by_index+0x5e/0x80
[  680.680223][   T73]      fib6_nh_init+0x3d8/0x1580
[  680.680223][   T73]      ip6_route_info_create+0xf18/0x17d0
[  680.680223][   T73]      addrconf_f6i_alloc+0x265/0x560
[  680.680223][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  680.680223][   T73]      addrconf_join_anycast+0x1c0/0x220
[  680.680223][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  680.680223][   T73]      addrconf_dad_completed+0x12b/0xe20
[  680.680223][   T73]      addrconf_dad_begin+0x310/0x670
[  680.680223][   T73]      addrconf_dad_work+0x10b/0xab0
[  680.680223][   T73]      process_one_work+0x84d/0x18a0
[  680.680223][   T73]      worker_thread+0x587/0xd30
[  680.680223][   T73]      kthread+0x28a/0x350
[  680.680223][   T73]      ret_from_fork+0x31/0x70
[  680.680223][   T73]      ret_from_fork_asm+0x1a/0x30
[  680.680223][   T73] 
[  680.682350][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  680.682350][   T73]      netdev_get_by_index+0x5e/0x80
[  680.682350][   T73]      fib6_nh_init+0x3d8/0x1580
[  680.682350][   T73]      ip6_route_info_create+0xf18/0x17d0
[  680.682350][   T73]      ip6_route_add+0x1c/0x140
[  680.682350][   T73]      addrconf_prefix_route+0x2a6/0x430
[  680.682350][   T73]      inet6_addr_add+0x4f8/0xa40
[  680.682350][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  680.682350][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  680.682350][   T73]      netlink_rcv_skb+0x130/0x360
[  680.682350][   T73]      netlink_unicast+0x449/0x710
[  680.682350][   T73]      netlink_sendmsg+0x723/0xbe0
[  680.682350][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  680.682350][   T73]      ___sys_sendmsg+0xee/0x170
[  680.682350][   T73]      __sys_sendmsg+0xcd/0x170
[  680.682350][   T73]      do_syscall_64+0xc6/0x1e0
[  680.682350][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  680.682350][   T73] 
[  680.684699][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  680.684699][   T73]      netdev_get_by_index+0x5e/0x80
[  680.684699][   T73]      fib6_nh_init+0x3d8/0x1580
[  680.684699][   T73]      ip6_route_info_create+0xf18/0x17d0
[  680.684699][   T73]      addrconf_f6i_alloc+0x315/0x560
[  680.684699][   T73]      ipv6_add_addr+0x411/0x2000
[  680.684699][   T73]      inet6_addr_add+0x30e/0xa40
[  680.684699][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  680.684699][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  680.684699][   T73]      netlink_rcv_skb+0x130/0x360
[  680.684699][   T73]      netlink_unicast+0x449/0x710
[  680.684699][   T73]      netlink_sendmsg+0x723/0xbe0
[  680.684699][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  680.684699][   T73]      ___sys_sendmsg+0xee/0x170
[  680.684699][   T73]      __sys_sendmsg+0xcd/0x170
[  680.684699][   T73]      do_syscall_64+0xc6/0x1e0
[  680.684699][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  680.684699][   T73] 
[  680.686981][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  680.686981][   T73]      netdev_get_by_index+0x5e/0x80
[  680.686981][   T73]      fib6_nh_init+0x3d8/0x1580
[  680.686981][   T73]      ip6_route_info_create+0xf18/0x17d0
[  680.686981][   T73]      ip6_route_add+0x1c/0x140
[  680.686981][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  680.686981][   T73]      addrconf_add_dev+0xe2/0x170
[  680.686981][   T73]      inet6_addr_add+0x12f/0xa40
[  680.686981][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  680.686981][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  680.686981][   T73]      netlink_rcv_skb+0x130/0x360
[  680.686981][   T73]      netlink_unicast+0x449/0x710
[  680.686981][   T73]      netlink_sendmsg+0x723/0xbe0
[  680.686981][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  680.686981][   T73]      ___sys_sendmsg+0xee/0x170
[  680.686981][   T73]      __sys_sendmsg+0xcd/0x170
[  680.686981][   T73]      do_syscall_64+0xc6/0x1e0
[  680.686981][   T73] 
[  680.689207][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  680.689207][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  680.689207][   T73]      ipv6_find_idev+0x102/0x170
[  680.689207][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  680.689207][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  680.689207][   T73]      netlink_rcv_skb+0x130/0x360
[  680.689207][   T73]      netlink_unicast+0x449/0x710
[  680.689207][   T73]      netlink_sendmsg+0x723/0xbe0
[  680.689207][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  680.689207][   T73]      ___sys_sendmsg+0xee/0x170
[  680.689207][   T73]      __sys_sendmsg+0xcd/0x170
[  680.689207][   T73]      do_syscall_64+0xc6/0x1e0
[  680.689207][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  680.689207][   T73] 
[  680.690991][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  680.690991][   T73]      neigh_parms_alloc+0x1e5/0x510
[  680.690991][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  680.690991][   T73]      ipv6_find_idev+0x102/0x170
[  680.690991][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  680.690991][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  680.690991][   T73]      netlink_rcv_skb+0x130/0x360
[  680.690991][   T73]      netlink_unicast+0x449/0x710
[  680.690991][   T73]      netlink_sendmsg+0x723/0xbe0
[  680.690991][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  680.690991][   T73]      ___sys_sendmsg+0xee/0x170
[  680.690991][   T73]      __sys_sendmsg+0xcd/0x170
[  680.690991][   T73]      do_syscall_64+0xc6/0x1e0
[  680.690991][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  680.690991][   T73] 
[  690.871730][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  690.872228][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  690.872228][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  690.872228][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  690.872228][   T73]      fib6_nh_init+0xa22/0x1580
[  690.872228][   T73]      ip6_route_info_create+0xf18/0x17d0
[  690.872228][   T73]      ip6_route_add+0x1c/0x140
[  690.872228][   T73]      inet6_rtm_newroute+0x104/0x110
[  690.872228][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  690.872228][   T73]      netlink_rcv_skb+0x130/0x360
[  690.872228][   T73]      netlink_unicast+0x449/0x710
[  690.872228][   T73]      netlink_sendmsg+0x723/0xbe0
[  690.872228][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  690.872228][   T73]      ___sys_sendmsg+0xee/0x170
[  690.872228][   T73]      __sys_sendmsg+0xcd/0x170
[  690.872228][   T73]      do_syscall_64+0xc6/0x1e0
[  690.872228][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  690.872228][   T73] 
[  690.874110][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  690.874110][   T73]      dst_init+0x84/0x4a0
[  690.874110][   T73]      dst_alloc+0x97/0x150
[  690.874110][   T73]      ip6_dst_alloc+0x23/0x90
[  690.874110][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  690.874110][   T73]      ip6_pol_route+0x56f/0x840
[  690.874110][   T73]      fib6_rule_lookup+0x456/0x630
[  690.874110][   T73]      ip6_route_input+0x59c/0xa50
[  690.874110][   T73]      ipv6_rcv+0x397/0x810
[  690.874110][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  690.874110][   T73]      process_backlog+0x101/0x620
[  690.874110][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  690.874110][   T73]      net_rx_action+0x495/0xbe0
[  690.874110][   T73]      __do_softirq+0x1b5/0x7f6
[  690.874110][   T73] 
[  690.875881][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  690.875881][   T73]      netdev_get_by_index+0x5e/0x80
[  690.875881][   T73]      fib6_nh_init+0x3d8/0x1580
[  690.875881][   T73]      ip6_route_info_create+0xf18/0x17d0
[  690.875881][   T73]      ip6_route_add+0x1c/0x140
[  690.875881][   T73]      addrconf_prefix_route+0x2a6/0x430
[  690.875881][   T73]      inet6_addr_add+0x4f8/0xa40
[  690.875881][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  690.875881][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  690.875881][   T73]      netlink_rcv_skb+0x130/0x360
[  690.875881][   T73]      netlink_unicast+0x449/0x710
[  690.875881][   T73]      netlink_sendmsg+0x723/0xbe0
[  690.875881][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  690.875881][   T73]      ___sys_sendmsg+0xee/0x170
[  690.875881][   T73]      __sys_sendmsg+0xcd/0x170
[  690.875881][   T73]      do_syscall_64+0xc6/0x1e0
[  690.875881][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  690.875881][   T73] 
[  690.878097][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  690.878097][   T73]      netdev_get_by_index+0x5e/0x80
[  690.878097][   T73]      fib6_nh_init+0x3d8/0x1580
[  690.878097][   T73]      ip6_route_info_create+0xf18/0x17d0
[  690.878097][   T73]      addrconf_f6i_alloc+0x315/0x560
[  690.878097][   T73]      ipv6_add_addr+0x411/0x2000
[  690.878097][   T73]      inet6_addr_add+0x30e/0xa40
[  690.878097][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  690.878097][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  690.878097][   T73]      netlink_rcv_skb+0x130/0x360
[  690.878097][   T73]      netlink_unicast+0x449/0x710
[  690.878097][   T73]      netlink_sendmsg+0x723/0xbe0
[  690.878097][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  690.878097][   T73]      ___sys_sendmsg+0xee/0x170
[  690.878097][   T73]      __sys_sendmsg+0xcd/0x170
[  690.878097][   T73]      do_syscall_64+0xc6/0x1e0
[  690.878097][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  690.878097][   T73] 
[  690.880297][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  690.880297][   T73]      netdev_get_by_index+0x5e/0x80
[  690.880297][   T73]      fib6_nh_init+0x3d8/0x1580
[  690.880297][   T73]      ip6_route_info_create+0xf18/0x17d0
[  690.880297][   T73]      ip6_route_add+0x1c/0x140
[  690.880297][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  690.880297][   T73]      addrconf_add_dev+0xe2/0x170
[  690.880297][   T73]      inet6_addr_add+0x12f/0xa40
[  690.880297][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  690.880297][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  690.880297][   T73]      netlink_rcv_skb+0x130/0x360
[  690.880297][   T73]      netlink_unicast+0x449/0x710
[  690.880297][   T73]      netlink_sendmsg+0x723/0xbe0
[  690.880297][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  690.880297][   T73]      ___sys_sendmsg+0xee/0x170
[  690.880297][   T73]      __sys_sendmsg+0xcd/0x170
[  690.880297][   T73]      do_syscall_64+0xc6/0x1e0
[  690.880297][   T73] 
[  690.882403][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  690.882403][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  690.882403][   T73]      ipv6_find_idev+0x102/0x170
[  690.882403][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  690.882403][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  690.882403][   T73]      netlink_rcv_skb+0x130/0x360
[  690.882403][   T73]      netlink_unicast+0x449/0x710
[  690.882403][   T73]      netlink_sendmsg+0x723/0xbe0
[  690.882403][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  690.882403][   T73]      ___sys_sendmsg+0xee/0x170
[  690.882403][   T73]      __sys_sendmsg+0xcd/0x170
[  690.882403][   T73]      do_syscall_64+0xc6/0x1e0
[  690.882403][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  690.882403][   T73] 
[  690.884108][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  690.884108][   T73]      neigh_parms_alloc+0x1e5/0x510
[  690.884108][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  690.884108][   T73]      ipv6_find_idev+0x102/0x170
[  690.884108][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  690.884108][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  690.884108][   T73]      netlink_rcv_skb+0x130/0x360
[  690.884108][   T73]      netlink_unicast+0x449/0x710
[  690.884108][   T73]      netlink_sendmsg+0x723/0xbe0
[  690.884108][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  690.884108][   T73]      ___sys_sendmsg+0xee/0x170
[  690.884108][   T73]      __sys_sendmsg+0xcd/0x170
[  690.884108][   T73]      do_syscall_64+0xc6/0x1e0
[  690.884108][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  690.884108][   T73] 
[  690.885997][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  690.886297][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  690.886297][   T73]      netdev_get_by_index+0x5e/0x80
[  690.886297][   T73]      fib6_nh_init+0x3d8/0x1580
[  690.886297][   T73]      ip6_route_info_create+0xf18/0x17d0
[  690.886297][   T73]      addrconf_f6i_alloc+0x265/0x560
[  690.886297][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  690.886297][   T73]      addrconf_join_anycast+0x1c0/0x220
[  690.886297][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  690.886297][   T73]      addrconf_dad_completed+0x12b/0xe20
[  690.886297][   T73]      addrconf_dad_begin+0x310/0x670
[  690.886297][   T73]      addrconf_dad_work+0x10b/0xab0
[  690.886297][   T73]      process_one_work+0x84d/0x18a0
[  690.886297][   T73]      worker_thread+0x587/0xd30
[  690.886297][   T73]      kthread+0x28a/0x350
[  690.886297][   T73]      ret_from_fork+0x31/0x70
[  690.886297][   T73]      ret_from_fork_asm+0x1a/0x30
[  690.886297][   T73] 
[  690.888410][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  690.888410][   T73]      netdev_get_by_index+0x5e/0x80
[  690.888410][   T73]      fib6_nh_init+0x3d8/0x1580
[  690.888410][   T73]      ip6_route_info_create+0xf18/0x17d0
[  690.888410][   T73]      ip6_route_add+0x1c/0x140
[  690.888410][   T73]      addrconf_prefix_route+0x2a6/0x430
[  690.888410][   T73]      inet6_addr_add+0x4f8/0xa40
[  690.888410][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  690.888410][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  690.888410][   T73]      netlink_rcv_skb+0x130/0x360
[  690.888410][   T73]      netlink_unicast+0x449/0x710
[  690.888410][   T73]      netlink_sendmsg+0x723/0xbe0
[  690.888410][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  690.888410][   T73]      ___sys_sendmsg+0xee/0x170
[  690.888410][   T73]      __sys_sendmsg+0xcd/0x170
[  690.888410][   T73]      do_syscall_64+0xc6/0x1e0
[  690.888410][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  690.888410][   T73] 
[  690.890637][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  690.890637][   T73]      netdev_get_by_index+0x5e/0x80
[  690.890637][   T73]      fib6_nh_init+0x3d8/0x1580
[  690.890637][   T73]      ip6_route_info_create+0xf18/0x17d0
[  690.890637][   T73]      addrconf_f6i_alloc+0x315/0x560
[  690.890637][   T73]      ipv6_add_addr+0x411/0x2000
[  690.890637][   T73]      inet6_addr_add+0x30e/0xa40
[  690.890637][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  690.890637][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  690.890637][   T73]      netlink_rcv_skb+0x130/0x360
[  690.890637][   T73]      netlink_unicast+0x449/0x710
[  690.890637][   T73]      netlink_sendmsg+0x723/0xbe0
[  690.890637][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  690.890637][   T73]      ___sys_sendmsg+0xee/0x170
[  690.890637][   T73]      __sys_sendmsg+0xcd/0x170
[  690.890637][   T73]      do_syscall_64+0xc6/0x1e0
[  690.890637][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  690.890637][   T73] 
[  690.892899][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  690.892899][   T73]      netdev_get_by_index+0x5e/0x80
[  690.892899][   T73]      fib6_nh_init+0x3d8/0x1580
[  690.892899][   T73]      ip6_route_info_create+0xf18/0x17d0
[  690.892899][   T73]      ip6_route_add+0x1c/0x140
[  690.892899][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  690.892899][   T73]      addrconf_add_dev+0xe2/0x170
[  690.892899][   T73]      inet6_addr_add+0x12f/0xa40
[  690.892899][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  690.892899][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  690.892899][   T73]      netlink_rcv_skb+0x130/0x360
[  690.892899][   T73]      netlink_unicast+0x449/0x710
[  690.892899][   T73]      netlink_sendmsg+0x723/0xbe0
[  690.892899][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  690.892899][   T73]      ___sys_sendmsg+0xee/0x170
[  690.892899][   T73]      __sys_sendmsg+0xcd/0x170
[  690.892899][   T73]      do_syscall_64+0xc6/0x1e0
[  690.892899][   T73] 
[  690.895095][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  690.895095][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  690.895095][   T73]      ipv6_find_idev+0x102/0x170
[  690.895095][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  690.895095][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  690.895095][   T73]      netlink_rcv_skb+0x130/0x360
[  690.895095][   T73]      netlink_unicast+0x449/0x710
[  690.895095][   T73]      netlink_sendmsg+0x723/0xbe0
[  690.895095][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  690.895095][   T73]      ___sys_sendmsg+0xee/0x170
[  690.895095][   T73]      __sys_sendmsg+0xcd/0x170
[  690.895095][   T73]      do_syscall_64+0xc6/0x1e0
[  690.895095][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  690.895095][   T73] 
[  690.896827][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  690.896827][   T73]      neigh_parms_alloc+0x1e5/0x510
[  690.896827][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  690.896827][   T73]      ipv6_find_idev+0x102/0x170
[  690.896827][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  690.896827][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  690.896827][   T73]      netlink_rcv_skb+0x130/0x360
[  690.896827][   T73]      netlink_unicast+0x449/0x710
[  690.896827][   T73]      netlink_sendmsg+0x723/0xbe0
[  690.896827][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  690.896827][   T73]      ___sys_sendmsg+0xee/0x170
[  690.896827][   T73]      __sys_sendmsg+0xcd/0x170
[  690.896827][   T73]      do_syscall_64+0xc6/0x1e0
[  690.896827][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  690.896827][   T73] 
[  690.898702][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  690.898994][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  690.898994][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  690.898994][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  690.898994][   T73]      fib6_nh_init+0xa22/0x1580
[  690.898994][   T73]      ip6_route_info_create+0xf18/0x17d0
[  690.898994][   T73]      ip6_route_add+0x1c/0x140
[  690.898994][   T73]      inet6_rtm_newroute+0x104/0x110
[  690.898994][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  690.898994][   T73]      netlink_rcv_skb+0x130/0x360
[  690.898994][   T73]      netlink_unicast+0x449/0x710
[  690.898994][   T73]      netlink_sendmsg+0x723/0xbe0
[  690.898994][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  690.898994][   T73]      ___sys_sendmsg+0xee/0x170
[  690.898994][   T73]      __sys_sendmsg+0xcd/0x170
[  690.898994][   T73]      do_syscall_64+0xc6/0x1e0
[  690.898994][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  690.898994][   T73] 
[  690.901699][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  690.901699][   T73]      dst_init+0x84/0x4a0
[  690.901699][   T73]      dst_alloc+0x97/0x150
[  690.901699][   T73]      ip6_dst_alloc+0x23/0x90
[  690.901699][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  690.901699][   T73]      ip6_pol_route+0x56f/0x840
[  690.901699][   T73]      fib6_rule_lookup+0x456/0x630
[  690.901699][   T73]      ip6_route_input+0x59c/0xa50
[  690.901699][   T73]      ipv6_rcv+0x397/0x810
[  690.901699][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  690.901699][   T73]      process_backlog+0x101/0x620
[  690.901699][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  690.901699][   T73]      net_rx_action+0x495/0xbe0
[  690.901699][   T73]      __do_softirq+0x1b5/0x7f6
[  690.901699][   T73] 
[  690.903787][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  690.903787][   T73]      netdev_get_by_index+0x5e/0x80
[  690.903787][   T73]      fib6_nh_init+0x3d8/0x1580
[  690.903787][   T73]      ip6_route_info_create+0xf18/0x17d0
[  690.903787][   T73]      ip6_route_add+0x1c/0x140
[  690.903787][   T73]      addrconf_prefix_route+0x2a6/0x430
[  690.903787][   T73]      inet6_addr_add+0x4f8/0xa40
[  690.903787][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  690.903787][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  690.903787][   T73]      netlink_rcv_skb+0x130/0x360
[  690.903787][   T73]      netlink_unicast+0x449/0x710
[  690.903787][   T73]      netlink_sendmsg+0x723/0xbe0
[  690.903787][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  690.903787][   T73]      ___sys_sendmsg+0xee/0x170
[  690.903787][   T73]      __sys_sendmsg+0xcd/0x170
[  690.903787][   T73]      do_syscall_64+0xc6/0x1e0
[  690.903787][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  690.903787][   T73] 
[  690.906186][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  690.906186][   T73]      netdev_get_by_index+0x5e/0x80
[  690.906186][   T73]      fib6_nh_init+0x3d8/0x1580
[  690.906186][   T73]      ip6_route_info_create+0xf18/0x17d0
[  690.906186][   T73]      addrconf_f6i_alloc+0x315/0x560
[  690.906186][   T73]      ipv6_add_addr+0x411/0x2000
[  690.906186][   T73]      inet6_addr_add+0x30e/0xa40
[  690.906186][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  690.906186][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  690.906186][   T73]      netlink_rcv_skb+0x130/0x360
[  690.906186][   T73]      netlink_unicast+0x449/0x710
[  690.906186][   T73]      netlink_sendmsg+0x723/0xbe0
[  690.906186][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  690.906186][   T73]      ___sys_sendmsg+0xee/0x170
[  690.906186][   T73]      __sys_sendmsg+0xcd/0x170
[  690.906186][   T73]      do_syscall_64+0xc6/0x1e0
[  690.906186][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  690.906186][   T73] 
[  690.908519][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  690.908519][   T73]      netdev_get_by_index+0x5e/0x80
[  690.908519][   T73]      fib6_nh_init+0x3d8/0x1580
[  690.908519][   T73]      ip6_route_info_create+0xf18/0x17d0
[  690.908519][   T73]      ip6_route_add+0x1c/0x140
[  690.908519][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  690.908519][   T73]      addrconf_add_dev+0xe2/0x170
[  690.908519][   T73]      inet6_addr_add+0x12f/0xa40
[  690.908519][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  690.908519][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  690.908519][   T73]      netlink_rcv_skb+0x130/0x360
[  690.908519][   T73]      netlink_unicast+0x449/0x710
[  690.908519][   T73]      netlink_sendmsg+0x723/0xbe0
[  690.908519][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  690.908519][   T73]      ___sys_sendmsg+0xee/0x170
[  690.908519][   T73]      __sys_sendmsg+0xcd/0x170
[  690.908519][   T73]      do_syscall_64+0xc6/0x1e0
[  690.908519][   T73] 
[  690.910922][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  690.910922][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  690.910922][   T73]      ipv6_find_idev+0x102/0x170
[  690.910922][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  690.910922][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  690.910922][   T73]      netlink_rcv_skb+0x130/0x360
[  690.910922][   T73]      netlink_unicast+0x449/0x710
[  690.910922][   T73]      netlink_sendmsg+0x723/0xbe0
[  690.910922][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  690.910922][   T73]      ___sys_sendmsg+0xee/0x170
[  690.910922][   T73]      __sys_sendmsg+0xcd/0x170
[  690.910922][   T73]      do_syscall_64+0xc6/0x1e0
[  690.910922][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  690.910922][   T73] 
[  690.912753][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  690.912753][   T73]      neigh_parms_alloc+0x1e5/0x510
[  690.912753][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  690.912753][   T73]      ipv6_find_idev+0x102/0x170
[  690.912753][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  690.912753][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  690.912753][   T73]      netlink_rcv_skb+0x130/0x360
[  690.912753][   T73]      netlink_unicast+0x449/0x710
[  690.912753][   T73]      netlink_sendmsg+0x723/0xbe0
[  690.912753][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  690.912753][   T73]      ___sys_sendmsg+0xee/0x170
[  690.912753][   T73]      __sys_sendmsg+0xcd/0x170
[  690.912753][   T73]      do_syscall_64+0xc6/0x1e0
[  690.912753][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  690.912753][   T73] 
[  690.914889][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  690.915247][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  690.915247][   T73]      netdev_get_by_index+0x5e/0x80
[  690.915247][   T73]      fib6_nh_init+0x3d8/0x1580
[  690.915247][   T73]      ip6_route_info_create+0xf18/0x17d0
[  690.915247][   T73]      addrconf_f6i_alloc+0x265/0x560
[  690.915247][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  690.915247][   T73]      addrconf_join_anycast+0x1c0/0x220
[  690.915247][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  690.915247][   T73]      addrconf_dad_completed+0x12b/0xe20
[  690.915247][   T73]      addrconf_dad_begin+0x310/0x670
[  690.915247][   T73]      addrconf_dad_work+0x10b/0xab0
[  690.915247][   T73]      process_one_work+0x84d/0x18a0
[  690.915247][   T73]      worker_thread+0x587/0xd30
[  690.915247][   T73]      kthread+0x28a/0x350
[  690.915247][   T73]      ret_from_fork+0x31/0x70
[  690.915247][   T73]      ret_from_fork_asm+0x1a/0x30
[  690.915247][   T73] 
[  690.917512][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  690.917512][   T73]      netdev_get_by_index+0x5e/0x80
[  690.917512][   T73]      fib6_nh_init+0x3d8/0x1580
[  690.917512][   T73]      ip6_route_info_create+0xf18/0x17d0
[  690.917512][   T73]      ip6_route_add+0x1c/0x140
[  690.917512][   T73]      addrconf_prefix_route+0x2a6/0x430
[  690.917512][   T73]      inet6_addr_add+0x4f8/0xa40
[  690.917512][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  690.917512][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  690.917512][   T73]      netlink_rcv_skb+0x130/0x360
[  690.917512][   T73]      netlink_unicast+0x449/0x710
[  690.917512][   T73]      netlink_sendmsg+0x723/0xbe0
[  690.917512][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  690.917512][   T73]      ___sys_sendmsg+0xee/0x170
[  690.917512][   T73]      __sys_sendmsg+0xcd/0x170
[  690.917512][   T73]      do_syscall_64+0xc6/0x1e0
[  690.917512][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  690.917512][   T73] 
[  690.919843][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  690.919843][   T73]      netdev_get_by_index+0x5e/0x80
[  690.919843][   T73]      fib6_nh_init+0x3d8/0x1580
[  690.919843][   T73]      ip6_route_info_create+0xf18/0x17d0
[  690.919843][   T73]      addrconf_f6i_alloc+0x315/0x560
[  690.919843][   T73]      ipv6_add_addr+0x411/0x2000
[  690.919843][   T73]      inet6_addr_add+0x30e/0xa40
[  690.919843][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  690.919843][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  690.919843][   T73]      netlink_rcv_skb+0x130/0x360
[  690.919843][   T73]      netlink_unicast+0x449/0x710
[  690.919843][   T73]      netlink_sendmsg+0x723/0xbe0
[  690.919843][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  690.919843][   T73]      ___sys_sendmsg+0xee/0x170
[  690.919843][   T73]      __sys_sendmsg+0xcd/0x170
[  690.919843][   T73]      do_syscall_64+0xc6/0x1e0
[  690.919843][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  690.919843][   T73] 
[  690.922331][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  690.922331][   T73]      netdev_get_by_index+0x5e/0x80
[  690.922331][   T73]      fib6_nh_init+0x3d8/0x1580
[  690.922331][   T73]      ip6_route_info_create+0xf18/0x17d0
[  690.922331][   T73]      ip6_route_add+0x1c/0x140
[  690.922331][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  690.922331][   T73]      addrconf_add_dev+0xe2/0x170
[  690.922331][   T73]      inet6_addr_add+0x12f/0xa40
[  690.922331][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  690.922331][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  690.922331][   T73]      netlink_rcv_skb+0x130/0x360
[  690.922331][   T73]      netlink_unicast+0x449/0x710
[  690.922331][   T73]      netlink_sendmsg+0x723/0xbe0
[  690.922331][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  690.922331][   T73]      ___sys_sendmsg+0xee/0x170
[  690.922331][   T73]      __sys_sendmsg+0xcd/0x170
[  690.922331][   T73]      do_syscall_64+0xc6/0x1e0
[  690.922331][   T73] 
[  690.925237][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  690.925237][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  690.925237][   T73]      ipv6_find_idev+0x102/0x170
[  690.925237][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  690.925237][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  690.925237][   T73]      netlink_rcv_skb+0x130/0x360
[  690.925237][   T73]      netlink_unicast+0x449/0x710
[  690.925237][   T73]      netlink_sendmsg+0x723/0xbe0
[  690.925237][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  690.925237][   T73]      ___sys_sendmsg+0xee/0x170
[  690.925237][   T73]      __sys_sendmsg+0xcd/0x170
[  690.925237][   T73]      do_syscall_64+0xc6/0x1e0
[  690.925237][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  690.925237][   T73] 
[  690.927157][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  690.927157][   T73]      neigh_parms_alloc+0x1e5/0x510
[  690.927157][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  690.927157][   T73]      ipv6_find_idev+0x102/0x170
[  690.927157][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  690.927157][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  690.927157][   T73]      netlink_rcv_skb+0x130/0x360
[  690.927157][   T73]      netlink_unicast+0x449/0x710
[  690.927157][   T73]      netlink_sendmsg+0x723/0xbe0
[  690.927157][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  690.927157][   T73]      ___sys_sendmsg+0xee/0x170
[  690.927157][   T73]      __sys_sendmsg+0xcd/0x170
[  690.927157][   T73]      do_syscall_64+0xc6/0x1e0
[  690.927157][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  690.927157][   T73] 
[  701.167737][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  701.168224][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  701.168224][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  701.168224][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  701.168224][   T73]      fib6_nh_init+0xa22/0x1580
[  701.168224][   T73]      ip6_route_info_create+0xf18/0x17d0
[  701.168224][   T73]      ip6_route_add+0x1c/0x140
[  701.168224][   T73]      inet6_rtm_newroute+0x104/0x110
[  701.168224][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  701.168224][   T73]      netlink_rcv_skb+0x130/0x360
[  701.168224][   T73]      netlink_unicast+0x449/0x710
[  701.168224][   T73]      netlink_sendmsg+0x723/0xbe0
[  701.168224][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  701.168224][   T73]      ___sys_sendmsg+0xee/0x170
[  701.168224][   T73]      __sys_sendmsg+0xcd/0x170
[  701.168224][   T73]      do_syscall_64+0xc6/0x1e0
[  701.168224][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  701.168224][   T73] 
[  701.170246][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  701.170246][   T73]      dst_init+0x84/0x4a0
[  701.170246][   T73]      dst_alloc+0x97/0x150
[  701.170246][   T73]      ip6_dst_alloc+0x23/0x90
[  701.170246][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  701.170246][   T73]      ip6_pol_route+0x56f/0x840
[  701.170246][   T73]      fib6_rule_lookup+0x456/0x630
[  701.170246][   T73]      ip6_route_input+0x59c/0xa50
[  701.170246][   T73]      ipv6_rcv+0x397/0x810
[  701.170246][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  701.170246][   T73]      process_backlog+0x101/0x620
[  701.170246][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  701.170246][   T73]      net_rx_action+0x495/0xbe0
[  701.170246][   T73]      __do_softirq+0x1b5/0x7f6
[  701.170246][   T73] 
[  701.171965][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  701.171965][   T73]      netdev_get_by_index+0x5e/0x80
[  701.171965][   T73]      fib6_nh_init+0x3d8/0x1580
[  701.171965][   T73]      ip6_route_info_create+0xf18/0x17d0
[  701.171965][   T73]      ip6_route_add+0x1c/0x140
[  701.171965][   T73]      addrconf_prefix_route+0x2a6/0x430
[  701.171965][   T73]      inet6_addr_add+0x4f8/0xa40
[  701.171965][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  701.171965][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  701.171965][   T73]      netlink_rcv_skb+0x130/0x360
[  701.171965][   T73]      netlink_unicast+0x449/0x710
[  701.171965][   T73]      netlink_sendmsg+0x723/0xbe0
[  701.171965][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  701.171965][   T73]      ___sys_sendmsg+0xee/0x170
[  701.171965][   T73]      __sys_sendmsg+0xcd/0x170
[  701.171965][   T73]      do_syscall_64+0xc6/0x1e0
[  701.171965][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  701.171965][   T73] 
[  701.174069][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  701.174069][   T73]      netdev_get_by_index+0x5e/0x80
[  701.174069][   T73]      fib6_nh_init+0x3d8/0x1580
[  701.174069][   T73]      ip6_route_info_create+0xf18/0x17d0
[  701.174069][   T73]      addrconf_f6i_alloc+0x315/0x560
[  701.174069][   T73]      ipv6_add_addr+0x411/0x2000
[  701.174069][   T73]      inet6_addr_add+0x30e/0xa40
[  701.174069][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  701.174069][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  701.174069][   T73]      netlink_rcv_skb+0x130/0x360
[  701.174069][   T73]      netlink_unicast+0x449/0x710
[  701.174069][   T73]      netlink_sendmsg+0x723/0xbe0
[  701.174069][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  701.174069][   T73]      ___sys_sendmsg+0xee/0x170
[  701.174069][   T73]      __sys_sendmsg+0xcd/0x170
[  701.174069][   T73]      do_syscall_64+0xc6/0x1e0
[  701.174069][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  701.174069][   T73] 
[  701.176156][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  701.176156][   T73]      netdev_get_by_index+0x5e/0x80
[  701.176156][   T73]      fib6_nh_init+0x3d8/0x1580
[  701.176156][   T73]      ip6_route_info_create+0xf18/0x17d0
[  701.176156][   T73]      ip6_route_add+0x1c/0x140
[  701.176156][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  701.176156][   T73]      addrconf_add_dev+0xe2/0x170
[  701.176156][   T73]      inet6_addr_add+0x12f/0xa40
[  701.176156][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  701.176156][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  701.176156][   T73]      netlink_rcv_skb+0x130/0x360
[  701.176156][   T73]      netlink_unicast+0x449/0x710
[  701.176156][   T73]      netlink_sendmsg+0x723/0xbe0
[  701.176156][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  701.176156][   T73]      ___sys_sendmsg+0xee/0x170
[  701.176156][   T73]      __sys_sendmsg+0xcd/0x170
[  701.176156][   T73]      do_syscall_64+0xc6/0x1e0
[  701.176156][   T73] 
[  701.178256][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  701.178256][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  701.178256][   T73]      ipv6_find_idev+0x102/0x170
[  701.178256][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  701.178256][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  701.178256][   T73]      netlink_rcv_skb+0x130/0x360
[  701.178256][   T73]      netlink_unicast+0x449/0x710
[  701.178256][   T73]      netlink_sendmsg+0x723/0xbe0
[  701.178256][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  701.178256][   T73]      ___sys_sendmsg+0xee/0x170
[  701.178256][   T73]      __sys_sendmsg+0xcd/0x170
[  701.178256][   T73]      do_syscall_64+0xc6/0x1e0
[  701.178256][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  701.178256][   T73] 
[  701.179853][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  701.179853][   T73]      neigh_parms_alloc+0x1e5/0x510
[  701.179853][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  701.179853][   T73]      ipv6_find_idev+0x102/0x170
[  701.179853][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  701.179853][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  701.179853][   T73]      netlink_rcv_skb+0x130/0x360
[  701.179853][   T73]      netlink_unicast+0x449/0x710
[  701.179853][   T73]      netlink_sendmsg+0x723/0xbe0
[  701.179853][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  701.179853][   T73]      ___sys_sendmsg+0xee/0x170
[  701.179853][   T73]      __sys_sendmsg+0xcd/0x170
[  701.179853][   T73]      do_syscall_64+0xc6/0x1e0
[  701.179853][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  701.179853][   T73] 
[  701.181542][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  701.181842][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  701.181842][   T73]      netdev_get_by_index+0x5e/0x80
[  701.181842][   T73]      fib6_nh_init+0x3d8/0x1580
[  701.181842][   T73]      ip6_route_info_create+0xf18/0x17d0
[  701.181842][   T73]      addrconf_f6i_alloc+0x265/0x560
[  701.181842][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  701.181842][   T73]      addrconf_join_anycast+0x1c0/0x220
[  701.181842][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  701.181842][   T73]      addrconf_dad_completed+0x12b/0xe20
[  701.181842][   T73]      addrconf_dad_begin+0x310/0x670
[  701.181842][   T73]      addrconf_dad_work+0x10b/0xab0
[  701.181842][   T73]      process_one_work+0x84d/0x18a0
[  701.181842][   T73]      worker_thread+0x587/0xd30
[  701.181842][   T73]      kthread+0x28a/0x350
[  701.181842][   T73]      ret_from_fork+0x31/0x70
[  701.181842][   T73]      ret_from_fork_asm+0x1a/0x30
[  701.181842][   T73] 
[  701.183742][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  701.183742][   T73]      netdev_get_by_index+0x5e/0x80
[  701.183742][   T73]      fib6_nh_init+0x3d8/0x1580
[  701.183742][   T73]      ip6_route_info_create+0xf18/0x17d0
[  701.183742][   T73]      ip6_route_add+0x1c/0x140
[  701.183742][   T73]      addrconf_prefix_route+0x2a6/0x430
[  701.183742][   T73]      inet6_addr_add+0x4f8/0xa40
[  701.183742][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  701.183742][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  701.183742][   T73]      netlink_rcv_skb+0x130/0x360
[  701.183742][   T73]      netlink_unicast+0x449/0x710
[  701.183742][   T73]      netlink_sendmsg+0x723/0xbe0
[  701.183742][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  701.183742][   T73]      ___sys_sendmsg+0xee/0x170
[  701.183742][   T73]      __sys_sendmsg+0xcd/0x170
[  701.183742][   T73]      do_syscall_64+0xc6/0x1e0
[  701.183742][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  701.183742][   T73] 
[  701.185778][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  701.185778][   T73]      netdev_get_by_index+0x5e/0x80
[  701.185778][   T73]      fib6_nh_init+0x3d8/0x1580
[  701.185778][   T73]      ip6_route_info_create+0xf18/0x17d0
[  701.185778][   T73]      addrconf_f6i_alloc+0x315/0x560
[  701.185778][   T73]      ipv6_add_addr+0x411/0x2000
[  701.185778][   T73]      inet6_addr_add+0x30e/0xa40
[  701.185778][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  701.185778][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  701.185778][   T73]      netlink_rcv_skb+0x130/0x360
[  701.185778][   T73]      netlink_unicast+0x449/0x710
[  701.185778][   T73]      netlink_sendmsg+0x723/0xbe0
[  701.185778][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  701.185778][   T73]      ___sys_sendmsg+0xee/0x170
[  701.185778][   T73]      __sys_sendmsg+0xcd/0x170
[  701.185778][   T73]      do_syscall_64+0xc6/0x1e0
[  701.185778][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  701.185778][   T73] 
[  701.187916][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  701.187916][   T73]      netdev_get_by_index+0x5e/0x80
[  701.187916][   T73]      fib6_nh_init+0x3d8/0x1580
[  701.187916][   T73]      ip6_route_info_create+0xf18/0x17d0
[  701.187916][   T73]      ip6_route_add+0x1c/0x140
[  701.187916][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  701.187916][   T73]      addrconf_add_dev+0xe2/0x170
[  701.187916][   T73]      inet6_addr_add+0x12f/0xa40
[  701.187916][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  701.187916][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  701.187916][   T73]      netlink_rcv_skb+0x130/0x360
[  701.187916][   T73]      netlink_unicast+0x449/0x710
[  701.187916][   T73]      netlink_sendmsg+0x723/0xbe0
[  701.187916][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  701.187916][   T73]      ___sys_sendmsg+0xee/0x170
[  701.187916][   T73]      __sys_sendmsg+0xcd/0x170
[  701.187916][   T73]      do_syscall_64+0xc6/0x1e0
[  701.187916][   T73] 
[  701.189928][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  701.189928][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  701.189928][   T73]      ipv6_find_idev+0x102/0x170
[  701.189928][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  701.189928][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  701.189928][   T73]      netlink_rcv_skb+0x130/0x360
[  701.189928][   T73]      netlink_unicast+0x449/0x710
[  701.189928][   T73]      netlink_sendmsg+0x723/0xbe0
[  701.189928][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  701.189928][   T73]      ___sys_sendmsg+0xee/0x170
[  701.189928][   T73]      __sys_sendmsg+0xcd/0x170
[  701.189928][   T73]      do_syscall_64+0xc6/0x1e0
[  701.189928][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  701.189928][   T73] 
[  701.191522][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  701.191522][   T73]      neigh_parms_alloc+0x1e5/0x510
[  701.191522][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  701.191522][   T73]      ipv6_find_idev+0x102/0x170
[  701.191522][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  701.191522][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  701.191522][   T73]      netlink_rcv_skb+0x130/0x360
[  701.191522][   T73]      netlink_unicast+0x449/0x710
[  701.191522][   T73]      netlink_sendmsg+0x723/0xbe0
[  701.191522][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  701.191522][   T73]      ___sys_sendmsg+0xee/0x170
[  701.191522][   T73]      __sys_sendmsg+0xcd/0x170
[  701.191522][   T73]      do_syscall_64+0xc6/0x1e0
[  701.191522][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  701.191522][   T73] 
[  701.193351][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  701.193624][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  701.193624][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  701.193624][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  701.193624][   T73]      fib6_nh_init+0xa22/0x1580
[  701.193624][   T73]      ip6_route_info_create+0xf18/0x17d0
[  701.193624][   T73]      ip6_route_add+0x1c/0x140
[  701.193624][   T73]      inet6_rtm_newroute+0x104/0x110
[  701.193624][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  701.193624][   T73]      netlink_rcv_skb+0x130/0x360
[  701.193624][   T73]      netlink_unicast+0x449/0x710
[  701.193624][   T73]      netlink_sendmsg+0x723/0xbe0
[  701.193624][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  701.193624][   T73]      ___sys_sendmsg+0xee/0x170
[  701.193624][   T73]      __sys_sendmsg+0xcd/0x170
[  701.193624][   T73]      do_syscall_64+0xc6/0x1e0
[  701.193624][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  701.193624][   T73] 
[  701.195772][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  701.195772][   T73]      dst_init+0x84/0x4a0
[  701.195772][   T73]      dst_alloc+0x97/0x150
[  701.195772][   T73]      ip6_dst_alloc+0x23/0x90
[  701.195772][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  701.195772][   T73]      ip6_pol_route+0x56f/0x840
[  701.195772][   T73]      fib6_rule_lookup+0x456/0x630
[  701.195772][   T73]      ip6_route_input+0x59c/0xa50
[  701.195772][   T73]      ipv6_rcv+0x397/0x810
[  701.195772][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  701.195772][   T73]      process_backlog+0x101/0x620
[  701.195772][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  701.195772][   T73]      net_rx_action+0x495/0xbe0
[  701.195772][   T73]      __do_softirq+0x1b5/0x7f6
[  701.195772][   T73] 
[  701.197743][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  701.197743][   T73]      netdev_get_by_index+0x5e/0x80
[  701.197743][   T73]      fib6_nh_init+0x3d8/0x1580
[  701.197743][   T73]      ip6_route_info_create+0xf18/0x17d0
[  701.197743][   T73]      ip6_route_add+0x1c/0x140
[  701.197743][   T73]      addrconf_prefix_route+0x2a6/0x430
[  701.197743][   T73]      inet6_addr_add+0x4f8/0xa40
[  701.197743][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  701.197743][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  701.197743][   T73]      netlink_rcv_skb+0x130/0x360
[  701.197743][   T73]      netlink_unicast+0x449/0x710
[  701.197743][   T73]      netlink_sendmsg+0x723/0xbe0
[  701.197743][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  701.197743][   T73]      ___sys_sendmsg+0xee/0x170
[  701.197743][   T73]      __sys_sendmsg+0xcd/0x170
[  701.197743][   T73]      do_syscall_64+0xc6/0x1e0
[  701.197743][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  701.197743][   T73] 
[  701.200049][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  701.200049][   T73]      netdev_get_by_index+0x5e/0x80
[  701.200049][   T73]      fib6_nh_init+0x3d8/0x1580
[  701.200049][   T73]      ip6_route_info_create+0xf18/0x17d0
[  701.200049][   T73]      addrconf_f6i_alloc+0x315/0x560
[  701.200049][   T73]      ipv6_add_addr+0x411/0x2000
[  701.200049][   T73]      inet6_addr_add+0x30e/0xa40
[  701.200049][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  701.200049][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  701.200049][   T73]      netlink_rcv_skb+0x130/0x360
[  701.200049][   T73]      netlink_unicast+0x449/0x710
[  701.200049][   T73]      netlink_sendmsg+0x723/0xbe0
[  701.200049][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  701.200049][   T73]      ___sys_sendmsg+0xee/0x170
[  701.200049][   T73]      __sys_sendmsg+0xcd/0x170
[  701.200049][   T73]      do_syscall_64+0xc6/0x1e0
[  701.200049][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  701.200049][   T73] 
[  701.202527][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  701.202527][   T73]      netdev_get_by_index+0x5e/0x80
[  701.202527][   T73]      fib6_nh_init+0x3d8/0x1580
[  701.202527][   T73]      ip6_route_info_create+0xf18/0x17d0
[  701.202527][   T73]      ip6_route_add+0x1c/0x140
[  701.202527][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  701.202527][   T73]      addrconf_add_dev+0xe2/0x170
[  701.202527][   T73]      inet6_addr_add+0x12f/0xa40
[  701.202527][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  701.202527][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  701.202527][   T73]      netlink_rcv_skb+0x130/0x360
[  701.202527][   T73]      netlink_unicast+0x449/0x710
[  701.202527][   T73]      netlink_sendmsg+0x723/0xbe0
[  701.202527][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  701.202527][   T73]      ___sys_sendmsg+0xee/0x170
[  701.202527][   T73]      __sys_sendmsg+0xcd/0x170
[  701.202527][   T73]      do_syscall_64+0xc6/0x1e0
[  701.202527][   T73] 
[  701.204672][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  701.204672][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  701.204672][   T73]      ipv6_find_idev+0x102/0x170
[  701.204672][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  701.204672][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  701.204672][   T73]      netlink_rcv_skb+0x130/0x360
[  701.204672][   T73]      netlink_unicast+0x449/0x710
[  701.204672][   T73]      netlink_sendmsg+0x723/0xbe0
[  701.204672][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  701.204672][   T73]      ___sys_sendmsg+0xee/0x170
[  701.204672][   T73]      __sys_sendmsg+0xcd/0x170
[  701.204672][   T73]      do_syscall_64+0xc6/0x1e0
[  701.204672][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  701.204672][   T73] 
[  701.206383][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  701.206383][   T73]      neigh_parms_alloc+0x1e5/0x510
[  701.206383][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  701.206383][   T73]      ipv6_find_idev+0x102/0x170
[  701.206383][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  701.206383][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  701.206383][   T73]      netlink_rcv_skb+0x130/0x360
[  701.206383][   T73]      netlink_unicast+0x449/0x710
[  701.206383][   T73]      netlink_sendmsg+0x723/0xbe0
[  701.206383][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  701.206383][   T73]      ___sys_sendmsg+0xee/0x170
[  701.206383][   T73]      __sys_sendmsg+0xcd/0x170
[  701.206383][   T73]      do_syscall_64+0xc6/0x1e0
[  701.206383][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  701.206383][   T73] 
[  701.208744][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  701.209022][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  701.209022][   T73]      netdev_get_by_index+0x5e/0x80
[  701.209022][   T73]      fib6_nh_init+0x3d8/0x1580
[  701.209022][   T73]      ip6_route_info_create+0xf18/0x17d0
[  701.209022][   T73]      addrconf_f6i_alloc+0x265/0x560
[  701.209022][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  701.209022][   T73]      addrconf_join_anycast+0x1c0/0x220
[  701.209022][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  701.209022][   T73]      addrconf_dad_completed+0x12b/0xe20
[  701.209022][   T73]      addrconf_dad_begin+0x310/0x670
[  701.209022][   T73]      addrconf_dad_work+0x10b/0xab0
[  701.209022][   T73]      process_one_work+0x84d/0x18a0
[  701.209022][   T73]      worker_thread+0x587/0xd30
[  701.209022][   T73]      kthread+0x28a/0x350
[  701.209022][   T73]      ret_from_fork+0x31/0x70
[  701.209022][   T73]      ret_from_fork_asm+0x1a/0x30
[  701.209022][   T73] 
[  701.211082][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  701.211082][   T73]      netdev_get_by_index+0x5e/0x80
[  701.211082][   T73]      fib6_nh_init+0x3d8/0x1580
[  701.211082][   T73]      ip6_route_info_create+0xf18/0x17d0
[  701.211082][   T73]      ip6_route_add+0x1c/0x140
[  701.211082][   T73]      addrconf_prefix_route+0x2a6/0x430
[  701.211082][   T73]      inet6_addr_add+0x4f8/0xa40
[  701.211082][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  701.211082][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  701.211082][   T73]      netlink_rcv_skb+0x130/0x360
[  701.211082][   T73]      netlink_unicast+0x449/0x710
[  701.211082][   T73]      netlink_sendmsg+0x723/0xbe0
[  701.211082][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  701.211082][   T73]      ___sys_sendmsg+0xee/0x170
[  701.211082][   T73]      __sys_sendmsg+0xcd/0x170
[  701.211082][   T73]      do_syscall_64+0xc6/0x1e0
[  701.211082][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  701.211082][   T73] 
[  701.213293][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  701.213293][   T73]      netdev_get_by_index+0x5e/0x80
[  701.213293][   T73]      fib6_nh_init+0x3d8/0x1580
[  701.213293][   T73]      ip6_route_info_create+0xf18/0x17d0
[  701.213293][   T73]      addrconf_f6i_alloc+0x315/0x560
[  701.213293][   T73]      ipv6_add_addr+0x411/0x2000
[  701.213293][   T73]      inet6_addr_add+0x30e/0xa40
[  701.213293][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  701.213293][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  701.213293][   T73]      netlink_rcv_skb+0x130/0x360
[  701.213293][   T73]      netlink_unicast+0x449/0x710
[  701.213293][   T73]      netlink_sendmsg+0x723/0xbe0
[  701.213293][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  701.213293][   T73]      ___sys_sendmsg+0xee/0x170
[  701.213293][   T73]      __sys_sendmsg+0xcd/0x170
[  701.213293][   T73]      do_syscall_64+0xc6/0x1e0
[  701.213293][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  701.213293][   T73] 
[  701.216008][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  701.216008][   T73]      netdev_get_by_index+0x5e/0x80
[  701.216008][   T73]      fib6_nh_init+0x3d8/0x1580
[  701.216008][   T73]      ip6_route_info_create+0xf18/0x17d0
[  701.216008][   T73]      ip6_route_add+0x1c/0x140
[  701.216008][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  701.216008][   T73]      addrconf_add_dev+0xe2/0x170
[  701.216008][   T73]      inet6_addr_add+0x12f/0xa40
[  701.216008][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  701.216008][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  701.216008][   T73]      netlink_rcv_skb+0x130/0x360
[  701.216008][   T73]      netlink_unicast+0x449/0x710
[  701.216008][   T73]      netlink_sendmsg+0x723/0xbe0
[  701.216008][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  701.216008][   T73]      ___sys_sendmsg+0xee/0x170
[  701.216008][   T73]      __sys_sendmsg+0xcd/0x170
[  701.216008][   T73]      do_syscall_64+0xc6/0x1e0
[  701.216008][   T73] 
[  701.218382][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  701.218382][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  701.218382][   T73]      ipv6_find_idev+0x102/0x170
[  701.218382][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  701.218382][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  701.218382][   T73]      netlink_rcv_skb+0x130/0x360
[  701.218382][   T73]      netlink_unicast+0x449/0x710
[  701.218382][   T73]      netlink_sendmsg+0x723/0xbe0
[  701.218382][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  701.218382][   T73]      ___sys_sendmsg+0xee/0x170
[  701.218382][   T73]      __sys_sendmsg+0xcd/0x170
[  701.218382][   T73]      do_syscall_64+0xc6/0x1e0
[  701.218382][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  701.218382][   T73] 
[  701.220216][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  701.220216][   T73]      neigh_parms_alloc+0x1e5/0x510
[  701.220216][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  701.220216][   T73]      ipv6_find_idev+0x102/0x170
[  701.220216][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  701.220216][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  701.220216][   T73]      netlink_rcv_skb+0x130/0x360
[  701.220216][   T73]      netlink_unicast+0x449/0x710
[  701.220216][   T73]      netlink_sendmsg+0x723/0xbe0
[  701.220216][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  701.220216][   T73]      ___sys_sendmsg+0xee/0x170
[  701.220216][   T73]      __sys_sendmsg+0xcd/0x170
[  701.220216][   T73]      do_syscall_64+0xc6/0x1e0
[  701.220216][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  701.220216][   T73] 
[  711.463769][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  711.464216][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  711.464216][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  711.464216][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  711.464216][   T73]      fib6_nh_init+0xa22/0x1580
[  711.464216][   T73]      ip6_route_info_create+0xf18/0x17d0
[  711.464216][   T73]      ip6_route_add+0x1c/0x140
[  711.464216][   T73]      inet6_rtm_newroute+0x104/0x110
[  711.464216][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  711.464216][   T73]      netlink_rcv_skb+0x130/0x360
[  711.464216][   T73]      netlink_unicast+0x449/0x710
[  711.464216][   T73]      netlink_sendmsg+0x723/0xbe0
[  711.464216][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  711.464216][   T73]      ___sys_sendmsg+0xee/0x170
[  711.464216][   T73]      __sys_sendmsg+0xcd/0x170
[  711.464216][   T73]      do_syscall_64+0xc6/0x1e0
[  711.464216][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  711.464216][   T73] 
[  711.466119][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  711.466119][   T73]      dst_init+0x84/0x4a0
[  711.466119][   T73]      dst_alloc+0x97/0x150
[  711.466119][   T73]      ip6_dst_alloc+0x23/0x90
[  711.466119][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  711.466119][   T73]      ip6_pol_route+0x56f/0x840
[  711.466119][   T73]      fib6_rule_lookup+0x456/0x630
[  711.466119][   T73]      ip6_route_input+0x59c/0xa50
[  711.466119][   T73]      ipv6_rcv+0x397/0x810
[  711.466119][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  711.466119][   T73]      process_backlog+0x101/0x620
[  711.466119][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  711.466119][   T73]      net_rx_action+0x495/0xbe0
[  711.466119][   T73]      __do_softirq+0x1b5/0x7f6
[  711.466119][   T73] 
[  711.467747][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  711.467747][   T73]      netdev_get_by_index+0x5e/0x80
[  711.467747][   T73]      fib6_nh_init+0x3d8/0x1580
[  711.467747][   T73]      ip6_route_info_create+0xf18/0x17d0
[  711.467747][   T73]      ip6_route_add+0x1c/0x140
[  711.467747][   T73]      addrconf_prefix_route+0x2a6/0x430
[  711.467747][   T73]      inet6_addr_add+0x4f8/0xa40
[  711.467747][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  711.467747][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  711.467747][   T73]      netlink_rcv_skb+0x130/0x360
[  711.467747][   T73]      netlink_unicast+0x449/0x710
[  711.467747][   T73]      netlink_sendmsg+0x723/0xbe0
[  711.467747][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  711.467747][   T73]      ___sys_sendmsg+0xee/0x170
[  711.467747][   T73]      __sys_sendmsg+0xcd/0x170
[  711.467747][   T73]      do_syscall_64+0xc6/0x1e0
[  711.467747][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  711.467747][   T73] 
[  711.469733][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  711.469733][   T73]      netdev_get_by_index+0x5e/0x80
[  711.469733][   T73]      fib6_nh_init+0x3d8/0x1580
[  711.469733][   T73]      ip6_route_info_create+0xf18/0x17d0
[  711.469733][   T73]      addrconf_f6i_alloc+0x315/0x560
[  711.469733][   T73]      ipv6_add_addr+0x411/0x2000
[  711.469733][   T73]      inet6_addr_add+0x30e/0xa40
[  711.469733][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  711.469733][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  711.469733][   T73]      netlink_rcv_skb+0x130/0x360
[  711.469733][   T73]      netlink_unicast+0x449/0x710
[  711.469733][   T73]      netlink_sendmsg+0x723/0xbe0
[  711.469733][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  711.469733][   T73]      ___sys_sendmsg+0xee/0x170
[  711.469733][   T73]      __sys_sendmsg+0xcd/0x170
[  711.469733][   T73]      do_syscall_64+0xc6/0x1e0
[  711.469733][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  711.469733][   T73] 
[  711.471726][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  711.471726][   T73]      netdev_get_by_index+0x5e/0x80
[  711.471726][   T73]      fib6_nh_init+0x3d8/0x1580
[  711.471726][   T73]      ip6_route_info_create+0xf18/0x17d0
[  711.471726][   T73]      ip6_route_add+0x1c/0x140
[  711.471726][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  711.471726][   T73]      addrconf_add_dev+0xe2/0x170
[  711.471726][   T73]      inet6_addr_add+0x12f/0xa40
[  711.471726][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  711.471726][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  711.471726][   T73]      netlink_rcv_skb+0x130/0x360
[  711.471726][   T73]      netlink_unicast+0x449/0x710
[  711.471726][   T73]      netlink_sendmsg+0x723/0xbe0
[  711.471726][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  711.471726][   T73]      ___sys_sendmsg+0xee/0x170
[  711.471726][   T73]      __sys_sendmsg+0xcd/0x170
[  711.471726][   T73]      do_syscall_64+0xc6/0x1e0
[  711.471726][   T73] 
[  711.473687][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  711.473687][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  711.473687][   T73]      ipv6_find_idev+0x102/0x170
[  711.473687][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  711.473687][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  711.473687][   T73]      netlink_rcv_skb+0x130/0x360
[  711.473687][   T73]      netlink_unicast+0x449/0x710
[  711.473687][   T73]      netlink_sendmsg+0x723/0xbe0
[  711.473687][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  711.473687][   T73]      ___sys_sendmsg+0xee/0x170
[  711.473687][   T73]      __sys_sendmsg+0xcd/0x170
[  711.473687][   T73]      do_syscall_64+0xc6/0x1e0
[  711.473687][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  711.473687][   T73] 
[  711.475219][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  711.475219][   T73]      neigh_parms_alloc+0x1e5/0x510
[  711.475219][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  711.475219][   T73]      ipv6_find_idev+0x102/0x170
[  711.475219][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  711.475219][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  711.475219][   T73]      netlink_rcv_skb+0x130/0x360
[  711.475219][   T73]      netlink_unicast+0x449/0x710
[  711.475219][   T73]      netlink_sendmsg+0x723/0xbe0
[  711.475219][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  711.475219][   T73]      ___sys_sendmsg+0xee/0x170
[  711.475219][   T73]      __sys_sendmsg+0xcd/0x170
[  711.475219][   T73]      do_syscall_64+0xc6/0x1e0
[  711.475219][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  711.475219][   T73] 
[  711.477334][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  711.477810][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  711.477810][   T73]      netdev_get_by_index+0x5e/0x80
[  711.477810][   T73]      fib6_nh_init+0x3d8/0x1580
[  711.477810][   T73]      ip6_route_info_create+0xf18/0x17d0
[  711.477810][   T73]      addrconf_f6i_alloc+0x265/0x560
[  711.477810][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  711.477810][   T73]      addrconf_join_anycast+0x1c0/0x220
[  711.477810][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  711.477810][   T73]      addrconf_dad_completed+0x12b/0xe20
[  711.477810][   T73]      addrconf_dad_begin+0x310/0x670
[  711.477810][   T73]      addrconf_dad_work+0x10b/0xab0
[  711.477810][   T73]      process_one_work+0x84d/0x18a0
[  711.477810][   T73]      worker_thread+0x587/0xd30
[  711.477810][   T73]      kthread+0x28a/0x350
[  711.477810][   T73]      ret_from_fork+0x31/0x70
[  711.477810][   T73]      ret_from_fork_asm+0x1a/0x30
[  711.477810][   T73] 
[  711.480666][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  711.480666][   T73]      netdev_get_by_index+0x5e/0x80
[  711.480666][   T73]      fib6_nh_init+0x3d8/0x1580
[  711.480666][   T73]      ip6_route_info_create+0xf18/0x17d0
[  711.480666][   T73]      ip6_route_add+0x1c/0x140
[  711.480666][   T73]      addrconf_prefix_route+0x2a6/0x430
[  711.480666][   T73]      inet6_addr_add+0x4f8/0xa40
[  711.480666][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  711.480666][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  711.480666][   T73]      netlink_rcv_skb+0x130/0x360
[  711.480666][   T73]      netlink_unicast+0x449/0x710
[  711.480666][   T73]      netlink_sendmsg+0x723/0xbe0
[  711.480666][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  711.480666][   T73]      ___sys_sendmsg+0xee/0x170
[  711.480666][   T73]      __sys_sendmsg+0xcd/0x170
[  711.480666][   T73]      do_syscall_64+0xc6/0x1e0
[  711.480666][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  711.480666][   T73] 
[  711.483760][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  711.483760][   T73]      netdev_get_by_index+0x5e/0x80
[  711.483760][   T73]      fib6_nh_init+0x3d8/0x1580
[  711.483760][   T73]      ip6_route_info_create+0xf18/0x17d0
[  711.483760][   T73]      addrconf_f6i_alloc+0x315/0x560
[  711.483760][   T73]      ipv6_add_addr+0x411/0x2000
[  711.483760][   T73]      inet6_addr_add+0x30e/0xa40
[  711.483760][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  711.483760][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  711.483760][   T73]      netlink_rcv_skb+0x130/0x360
[  711.483760][   T73]      netlink_unicast+0x449/0x710
[  711.483760][   T73]      netlink_sendmsg+0x723/0xbe0
[  711.483760][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  711.483760][   T73]      ___sys_sendmsg+0xee/0x170
[  711.483760][   T73]      __sys_sendmsg+0xcd/0x170
[  711.483760][   T73]      do_syscall_64+0xc6/0x1e0
[  711.483760][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  711.483760][   T73] 
[  711.486803][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  711.486803][   T73]      netdev_get_by_index+0x5e/0x80
[  711.486803][   T73]      fib6_nh_init+0x3d8/0x1580
[  711.486803][   T73]      ip6_route_info_create+0xf18/0x17d0
[  711.486803][   T73]      ip6_route_add+0x1c/0x140
[  711.486803][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  711.486803][   T73]      addrconf_add_dev+0xe2/0x170
[  711.486803][   T73]      inet6_addr_add+0x12f/0xa40
[  711.486803][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  711.486803][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  711.486803][   T73]      netlink_rcv_skb+0x130/0x360
[  711.486803][   T73]      netlink_unicast+0x449/0x710
[  711.486803][   T73]      netlink_sendmsg+0x723/0xbe0
[  711.486803][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  711.486803][   T73]      ___sys_sendmsg+0xee/0x170
[  711.486803][   T73]      __sys_sendmsg+0xcd/0x170
[  711.486803][   T73]      do_syscall_64+0xc6/0x1e0
[  711.486803][   T73] 
[  711.489748][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  711.489748][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  711.489748][   T73]      ipv6_find_idev+0x102/0x170
[  711.489748][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  711.489748][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  711.489748][   T73]      netlink_rcv_skb+0x130/0x360
[  711.489748][   T73]      netlink_unicast+0x449/0x710
[  711.489748][   T73]      netlink_sendmsg+0x723/0xbe0
[  711.489748][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  711.489748][   T73]      ___sys_sendmsg+0xee/0x170
[  711.489748][   T73]      __sys_sendmsg+0xcd/0x170
[  711.489748][   T73]      do_syscall_64+0xc6/0x1e0
[  711.489748][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  711.489748][   T73] 
[  711.492070][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  711.492070][   T73]      neigh_parms_alloc+0x1e5/0x510
[  711.492070][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  711.492070][   T73]      ipv6_find_idev+0x102/0x170
[  711.492070][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  711.492070][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  711.492070][   T73]      netlink_rcv_skb+0x130/0x360
[  711.492070][   T73]      netlink_unicast+0x449/0x710
[  711.492070][   T73]      netlink_sendmsg+0x723/0xbe0
[  711.492070][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  711.492070][   T73]      ___sys_sendmsg+0xee/0x170
[  711.492070][   T73]      __sys_sendmsg+0xcd/0x170
[  711.492070][   T73]      do_syscall_64+0xc6/0x1e0
[  711.492070][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  711.492070][   T73] 
[  711.494594][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  711.495597][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  711.495597][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  711.495597][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  711.495597][   T73]      fib6_nh_init+0xa22/0x1580
[  711.495597][   T73]      ip6_route_info_create+0xf18/0x17d0
[  711.495597][   T73]      ip6_route_add+0x1c/0x140
[  711.495597][   T73]      inet6_rtm_newroute+0x104/0x110
[  711.495597][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  711.495597][   T73]      netlink_rcv_skb+0x130/0x360
[  711.495597][   T73]      netlink_unicast+0x449/0x710
[  711.495597][   T73]      netlink_sendmsg+0x723/0xbe0
[  711.495597][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  711.495597][   T73]      ___sys_sendmsg+0xee/0x170
[  711.495597][   T73]      __sys_sendmsg+0xcd/0x170
[  711.495597][   T73]      do_syscall_64+0xc6/0x1e0
[  711.495597][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  711.495597][   T73] 
[  711.497465][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  711.497465][   T73]      dst_init+0x84/0x4a0
[  711.497465][   T73]      dst_alloc+0x97/0x150
[  711.497465][   T73]      ip6_dst_alloc+0x23/0x90
[  711.497465][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  711.497465][   T73]      ip6_pol_route+0x56f/0x840
[  711.497465][   T73]      fib6_rule_lookup+0x456/0x630
[  711.497465][   T73]      ip6_route_input+0x59c/0xa50
[  711.497465][   T73]      ipv6_rcv+0x397/0x810
[  711.497465][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  711.497465][   T73]      process_backlog+0x101/0x620
[  711.497465][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  711.497465][   T73]      net_rx_action+0x495/0xbe0
[  711.497465][   T73]      __do_softirq+0x1b5/0x7f6
[  711.497465][   T73] 
[  711.499088][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  711.499088][   T73]      netdev_get_by_index+0x5e/0x80
[  711.499088][   T73]      fib6_nh_init+0x3d8/0x1580
[  711.499088][   T73]      ip6_route_info_create+0xf18/0x17d0
[  711.499088][   T73]      ip6_route_add+0x1c/0x140
[  711.499088][   T73]      addrconf_prefix_route+0x2a6/0x430
[  711.499088][   T73]      inet6_addr_add+0x4f8/0xa40
[  711.499088][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  711.499088][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  711.499088][   T73]      netlink_rcv_skb+0x130/0x360
[  711.499088][   T73]      netlink_unicast+0x449/0x710
[  711.499088][   T73]      netlink_sendmsg+0x723/0xbe0
[  711.499088][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  711.499088][   T73]      ___sys_sendmsg+0xee/0x170
[  711.499088][   T73]      __sys_sendmsg+0xcd/0x170
[  711.499088][   T73]      do_syscall_64+0xc6/0x1e0
[  711.499088][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  711.499088][   T73] 
[  711.501376][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  711.501376][   T73]      netdev_get_by_index+0x5e/0x80
[  711.501376][   T73]      fib6_nh_init+0x3d8/0x1580
[  711.501376][   T73]      ip6_route_info_create+0xf18/0x17d0
[  711.501376][   T73]      addrconf_f6i_alloc+0x315/0x560
[  711.501376][   T73]      ipv6_add_addr+0x411/0x2000
[  711.501376][   T73]      inet6_addr_add+0x30e/0xa40
[  711.501376][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  711.501376][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  711.501376][   T73]      netlink_rcv_skb+0x130/0x360
[  711.501376][   T73]      netlink_unicast+0x449/0x710
[  711.501376][   T73]      netlink_sendmsg+0x723/0xbe0
[  711.501376][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  711.501376][   T73]      ___sys_sendmsg+0xee/0x170
[  711.501376][   T73]      __sys_sendmsg+0xcd/0x170
[  711.501376][   T73]      do_syscall_64+0xc6/0x1e0
[  711.501376][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  711.501376][   T73] 
[  711.503587][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  711.503587][   T73]      netdev_get_by_index+0x5e/0x80
[  711.503587][   T73]      fib6_nh_init+0x3d8/0x1580
[  711.503587][   T73]      ip6_route_info_create+0xf18/0x17d0
[  711.503587][   T73]      ip6_route_add+0x1c/0x140
[  711.503587][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  711.503587][   T73]      addrconf_add_dev+0xe2/0x170
[  711.503587][   T73]      inet6_addr_add+0x12f/0xa40
[  711.503587][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  711.503587][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  711.503587][   T73]      netlink_rcv_skb+0x130/0x360
[  711.503587][   T73]      netlink_unicast+0x449/0x710
[  711.503587][   T73]      netlink_sendmsg+0x723/0xbe0
[  711.503587][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  711.503587][   T73]      ___sys_sendmsg+0xee/0x170
[  711.503587][   T73]      __sys_sendmsg+0xcd/0x170
[  711.503587][   T73]      do_syscall_64+0xc6/0x1e0
[  711.503587][   T73] 
[  711.505774][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  711.505774][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  711.505774][   T73]      ipv6_find_idev+0x102/0x170
[  711.505774][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  711.505774][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  711.505774][   T73]      netlink_rcv_skb+0x130/0x360
[  711.505774][   T73]      netlink_unicast+0x449/0x710
[  711.505774][   T73]      netlink_sendmsg+0x723/0xbe0
[  711.505774][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  711.505774][   T73]      ___sys_sendmsg+0xee/0x170
[  711.505774][   T73]      __sys_sendmsg+0xcd/0x170
[  711.505774][   T73]      do_syscall_64+0xc6/0x1e0
[  711.505774][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  711.505774][   T73] 
[  711.507382][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  711.507382][   T73]      neigh_parms_alloc+0x1e5/0x510
[  711.507382][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  711.507382][   T73]      ipv6_find_idev+0x102/0x170
[  711.507382][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  711.507382][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  711.507382][   T73]      netlink_rcv_skb+0x130/0x360
[  711.507382][   T73]      netlink_unicast+0x449/0x710
[  711.507382][   T73]      netlink_sendmsg+0x723/0xbe0
[  711.507382][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  711.507382][   T73]      ___sys_sendmsg+0xee/0x170
[  711.507382][   T73]      __sys_sendmsg+0xcd/0x170
[  711.507382][   T73]      do_syscall_64+0xc6/0x1e0
[  711.507382][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  711.507382][   T73] 
[  711.509362][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  711.509649][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  711.509649][   T73]      netdev_get_by_index+0x5e/0x80
[  711.509649][   T73]      fib6_nh_init+0x3d8/0x1580
[  711.509649][   T73]      ip6_route_info_create+0xf18/0x17d0
[  711.509649][   T73]      addrconf_f6i_alloc+0x265/0x560
[  711.509649][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  711.509649][   T73]      addrconf_join_anycast+0x1c0/0x220
[  711.509649][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  711.509649][   T73]      addrconf_dad_completed+0x12b/0xe20
[  711.509649][   T73]      addrconf_dad_begin+0x310/0x670
[  711.509649][   T73]      addrconf_dad_work+0x10b/0xab0
[  711.509649][   T73]      process_one_work+0x84d/0x18a0
[  711.509649][   T73]      worker_thread+0x587/0xd30
[  711.509649][   T73]      kthread+0x28a/0x350
[  711.509649][   T73]      ret_from_fork+0x31/0x70
[  711.509649][   T73]      ret_from_fork_asm+0x1a/0x30
[  711.509649][   T73] 
[  711.511795][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  711.511795][   T73]      netdev_get_by_index+0x5e/0x80
[  711.511795][   T73]      fib6_nh_init+0x3d8/0x1580
[  711.511795][   T73]      ip6_route_info_create+0xf18/0x17d0
[  711.511795][   T73]      ip6_route_add+0x1c/0x140
[  711.511795][   T73]      addrconf_prefix_route+0x2a6/0x430
[  711.511795][   T73]      inet6_addr_add+0x4f8/0xa40
[  711.511795][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  711.511795][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  711.511795][   T73]      netlink_rcv_skb+0x130/0x360
[  711.511795][   T73]      netlink_unicast+0x449/0x710
[  711.511795][   T73]      netlink_sendmsg+0x723/0xbe0
[  711.511795][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  711.511795][   T73]      ___sys_sendmsg+0xee/0x170
[  711.511795][   T73]      __sys_sendmsg+0xcd/0x170
[  711.511795][   T73]      do_syscall_64+0xc6/0x1e0
[  711.511795][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  711.511795][   T73] 
[  711.513913][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  711.513913][   T73]      netdev_get_by_index+0x5e/0x80
[  711.513913][   T73]      fib6_nh_init+0x3d8/0x1580
[  711.513913][   T73]      ip6_route_info_create+0xf18/0x17d0
[  711.513913][   T73]      addrconf_f6i_alloc+0x315/0x560
[  711.513913][   T73]      ipv6_add_addr+0x411/0x2000
[  711.513913][   T73]      inet6_addr_add+0x30e/0xa40
[  711.513913][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  711.513913][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  711.513913][   T73]      netlink_rcv_skb+0x130/0x360
[  711.513913][   T73]      netlink_unicast+0x449/0x710
[  711.513913][   T73]      netlink_sendmsg+0x723/0xbe0
[  711.513913][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  711.513913][   T73]      ___sys_sendmsg+0xee/0x170
[  711.513913][   T73]      __sys_sendmsg+0xcd/0x170
[  711.513913][   T73]      do_syscall_64+0xc6/0x1e0
[  711.513913][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  711.513913][   T73] 
[  711.516021][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  711.516021][   T73]      netdev_get_by_index+0x5e/0x80
[  711.516021][   T73]      fib6_nh_init+0x3d8/0x1580
[  711.516021][   T73]      ip6_route_info_create+0xf18/0x17d0
[  711.516021][   T73]      ip6_route_add+0x1c/0x140
[  711.516021][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  711.516021][   T73]      addrconf_add_dev+0xe2/0x170
[  711.516021][   T73]      inet6_addr_add+0x12f/0xa40
[  711.516021][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  711.516021][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  711.516021][   T73]      netlink_rcv_skb+0x130/0x360
[  711.516021][   T73]      netlink_unicast+0x449/0x710
[  711.516021][   T73]      netlink_sendmsg+0x723/0xbe0
[  711.516021][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  711.516021][   T73]      ___sys_sendmsg+0xee/0x170
[  711.516021][   T73]      __sys_sendmsg+0xcd/0x170
[  711.516021][   T73]      do_syscall_64+0xc6/0x1e0
[  711.516021][   T73] 
[  711.518096][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  711.518096][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  711.518096][   T73]      ipv6_find_idev+0x102/0x170
[  711.518096][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  711.518096][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  711.518096][   T73]      netlink_rcv_skb+0x130/0x360
[  711.518096][   T73]      netlink_unicast+0x449/0x710
[  711.518096][   T73]      netlink_sendmsg+0x723/0xbe0
[  711.518096][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  711.518096][   T73]      ___sys_sendmsg+0xee/0x170
[  711.518096][   T73]      __sys_sendmsg+0xcd/0x170
[  711.518096][   T73]      do_syscall_64+0xc6/0x1e0
[  711.518096][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  711.518096][   T73] 
[  711.519756][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  711.519756][   T73]      neigh_parms_alloc+0x1e5/0x510
[  711.519756][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  711.519756][   T73]      ipv6_find_idev+0x102/0x170
[  711.519756][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  711.519756][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  711.519756][   T73]      netlink_rcv_skb+0x130/0x360
[  711.519756][   T73]      netlink_unicast+0x449/0x710
[  711.519756][   T73]      netlink_sendmsg+0x723/0xbe0
[  711.519756][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  711.519756][   T73]      ___sys_sendmsg+0xee/0x170
[  711.519756][   T73]      __sys_sendmsg+0xcd/0x170
[  711.519756][   T73]      do_syscall_64+0xc6/0x1e0
[  711.519756][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  711.519756][   T73] 
[  721.543744][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  721.544151][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  721.544151][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  721.544151][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  721.544151][   T73]      fib6_nh_init+0xa22/0x1580
[  721.544151][   T73]      ip6_route_info_create+0xf18/0x17d0
[  721.544151][   T73]      ip6_route_add+0x1c/0x140
[  721.544151][   T73]      inet6_rtm_newroute+0x104/0x110
[  721.544151][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  721.544151][   T73]      netlink_rcv_skb+0x130/0x360
[  721.544151][   T73]      netlink_unicast+0x449/0x710
[  721.544151][   T73]      netlink_sendmsg+0x723/0xbe0
[  721.544151][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  721.544151][   T73]      ___sys_sendmsg+0xee/0x170
[  721.544151][   T73]      __sys_sendmsg+0xcd/0x170
[  721.544151][   T73]      do_syscall_64+0xc6/0x1e0
[  721.544151][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  721.544151][   T73] 
[  721.546049][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  721.546049][   T73]      dst_init+0x84/0x4a0
[  721.546049][   T73]      dst_alloc+0x97/0x150
[  721.546049][   T73]      ip6_dst_alloc+0x23/0x90
[  721.546049][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  721.546049][   T73]      ip6_pol_route+0x56f/0x840
[  721.546049][   T73]      fib6_rule_lookup+0x456/0x630
[  721.546049][   T73]      ip6_route_input+0x59c/0xa50
[  721.546049][   T73]      ipv6_rcv+0x397/0x810
[  721.546049][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  721.546049][   T73]      process_backlog+0x101/0x620
[  721.546049][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  721.546049][   T73]      net_rx_action+0x495/0xbe0
[  721.546049][   T73]      __do_softirq+0x1b5/0x7f6
[  721.546049][   T73] 
[  721.547677][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  721.547677][   T73]      netdev_get_by_index+0x5e/0x80
[  721.547677][   T73]      fib6_nh_init+0x3d8/0x1580
[  721.547677][   T73]      ip6_route_info_create+0xf18/0x17d0
[  721.547677][   T73]      ip6_route_add+0x1c/0x140
[  721.547677][   T73]      addrconf_prefix_route+0x2a6/0x430
[  721.547677][   T73]      inet6_addr_add+0x4f8/0xa40
[  721.547677][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  721.547677][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  721.547677][   T73]      netlink_rcv_skb+0x130/0x360
[  721.547677][   T73]      netlink_unicast+0x449/0x710
[  721.547677][   T73]      netlink_sendmsg+0x723/0xbe0
[  721.547677][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  721.547677][   T73]      ___sys_sendmsg+0xee/0x170
[  721.547677][   T73]      __sys_sendmsg+0xcd/0x170
[  721.547677][   T73]      do_syscall_64+0xc6/0x1e0
[  721.547677][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  721.547677][   T73] 
[  721.549681][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  721.549681][   T73]      netdev_get_by_index+0x5e/0x80
[  721.549681][   T73]      fib6_nh_init+0x3d8/0x1580
[  721.549681][   T73]      ip6_route_info_create+0xf18/0x17d0
[  721.549681][   T73]      addrconf_f6i_alloc+0x315/0x560
[  721.549681][   T73]      ipv6_add_addr+0x411/0x2000
[  721.549681][   T73]      inet6_addr_add+0x30e/0xa40
[  721.549681][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  721.549681][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  721.549681][   T73]      netlink_rcv_skb+0x130/0x360
[  721.549681][   T73]      netlink_unicast+0x449/0x710
[  721.549681][   T73]      netlink_sendmsg+0x723/0xbe0
[  721.549681][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  721.549681][   T73]      ___sys_sendmsg+0xee/0x170
[  721.549681][   T73]      __sys_sendmsg+0xcd/0x170
[  721.549681][   T73]      do_syscall_64+0xc6/0x1e0
[  721.549681][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  721.549681][   T73] 
[  721.551690][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  721.551690][   T73]      netdev_get_by_index+0x5e/0x80
[  721.551690][   T73]      fib6_nh_init+0x3d8/0x1580
[  721.551690][   T73]      ip6_route_info_create+0xf18/0x17d0
[  721.551690][   T73]      ip6_route_add+0x1c/0x140
[  721.551690][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  721.551690][   T73]      addrconf_add_dev+0xe2/0x170
[  721.551690][   T73]      inet6_addr_add+0x12f/0xa40
[  721.551690][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  721.551690][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  721.551690][   T73]      netlink_rcv_skb+0x130/0x360
[  721.551690][   T73]      netlink_unicast+0x449/0x710
[  721.551690][   T73]      netlink_sendmsg+0x723/0xbe0
[  721.551690][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  721.551690][   T73]      ___sys_sendmsg+0xee/0x170
[  721.551690][   T73]      __sys_sendmsg+0xcd/0x170
[  721.551690][   T73]      do_syscall_64+0xc6/0x1e0
[  721.551690][   T73] 
[  721.553704][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  721.553704][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  721.553704][   T73]      ipv6_find_idev+0x102/0x170
[  721.553704][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  721.553704][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  721.553704][   T73]      netlink_rcv_skb+0x130/0x360
[  721.553704][   T73]      netlink_unicast+0x449/0x710
[  721.553704][   T73]      netlink_sendmsg+0x723/0xbe0
[  721.553704][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  721.553704][   T73]      ___sys_sendmsg+0xee/0x170
[  721.553704][   T73]      __sys_sendmsg+0xcd/0x170
[  721.553704][   T73]      do_syscall_64+0xc6/0x1e0
[  721.553704][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  721.553704][   T73] 
[  721.555251][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  721.555251][   T73]      neigh_parms_alloc+0x1e5/0x510
[  721.555251][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  721.555251][   T73]      ipv6_find_idev+0x102/0x170
[  721.555251][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  721.555251][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  721.555251][   T73]      netlink_rcv_skb+0x130/0x360
[  721.555251][   T73]      netlink_unicast+0x449/0x710
[  721.555251][   T73]      netlink_sendmsg+0x723/0xbe0
[  721.555251][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  721.555251][   T73]      ___sys_sendmsg+0xee/0x170
[  721.555251][   T73]      __sys_sendmsg+0xcd/0x170
[  721.555251][   T73]      do_syscall_64+0xc6/0x1e0
[  721.555251][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  721.555251][   T73] 
[  721.556952][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  721.557267][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  721.557267][   T73]      netdev_get_by_index+0x5e/0x80
[  721.557267][   T73]      fib6_nh_init+0x3d8/0x1580
[  721.557267][   T73]      ip6_route_info_create+0xf18/0x17d0
[  721.557267][   T73]      addrconf_f6i_alloc+0x265/0x560
[  721.557267][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  721.557267][   T73]      addrconf_join_anycast+0x1c0/0x220
[  721.557267][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  721.557267][   T73]      addrconf_dad_completed+0x12b/0xe20
[  721.557267][   T73]      addrconf_dad_begin+0x310/0x670
[  721.557267][   T73]      addrconf_dad_work+0x10b/0xab0
[  721.557267][   T73]      process_one_work+0x84d/0x18a0
[  721.557267][   T73]      worker_thread+0x587/0xd30
[  721.557267][   T73]      kthread+0x28a/0x350
[  721.557267][   T73]      ret_from_fork+0x31/0x70
[  721.557267][   T73]      ret_from_fork_asm+0x1a/0x30
[  721.557267][   T73] 
[  721.559199][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  721.559199][   T73]      netdev_get_by_index+0x5e/0x80
[  721.559199][   T73]      fib6_nh_init+0x3d8/0x1580
[  721.559199][   T73]      ip6_route_info_create+0xf18/0x17d0
[  721.559199][   T73]      ip6_route_add+0x1c/0x140
[  721.559199][   T73]      addrconf_prefix_route+0x2a6/0x430
[  721.559199][   T73]      inet6_addr_add+0x4f8/0xa40
[  721.559199][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  721.559199][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  721.559199][   T73]      netlink_rcv_skb+0x130/0x360
[  721.559199][   T73]      netlink_unicast+0x449/0x710
[  721.559199][   T73]      netlink_sendmsg+0x723/0xbe0
[  721.559199][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  721.559199][   T73]      ___sys_sendmsg+0xee/0x170
[  721.559199][   T73]      __sys_sendmsg+0xcd/0x170
[  721.559199][   T73]      do_syscall_64+0xc6/0x1e0
[  721.559199][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  721.559199][   T73] 
[  721.561211][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  721.561211][   T73]      netdev_get_by_index+0x5e/0x80
[  721.561211][   T73]      fib6_nh_init+0x3d8/0x1580
[  721.561211][   T73]      ip6_route_info_create+0xf18/0x17d0
[  721.561211][   T73]      addrconf_f6i_alloc+0x315/0x560
[  721.561211][   T73]      ipv6_add_addr+0x411/0x2000
[  721.561211][   T73]      inet6_addr_add+0x30e/0xa40
[  721.561211][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  721.561211][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  721.561211][   T73]      netlink_rcv_skb+0x130/0x360
[  721.561211][   T73]      netlink_unicast+0x449/0x710
[  721.561211][   T73]      netlink_sendmsg+0x723/0xbe0
[  721.561211][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  721.561211][   T73]      ___sys_sendmsg+0xee/0x170
[  721.561211][   T73]      __sys_sendmsg+0xcd/0x170
[  721.561211][   T73]      do_syscall_64+0xc6/0x1e0
[  721.561211][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  721.561211][   T73] 
[  721.563231][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  721.563231][   T73]      netdev_get_by_index+0x5e/0x80
[  721.563231][   T73]      fib6_nh_init+0x3d8/0x1580
[  721.563231][   T73]      ip6_route_info_create+0xf18/0x17d0
[  721.563231][   T73]      ip6_route_add+0x1c/0x140
[  721.563231][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  721.563231][   T73]      addrconf_add_dev+0xe2/0x170
[  721.563231][   T73]      inet6_addr_add+0x12f/0xa40
[  721.563231][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  721.563231][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  721.563231][   T73]      netlink_rcv_skb+0x130/0x360
[  721.563231][   T73]      netlink_unicast+0x449/0x710
[  721.563231][   T73]      netlink_sendmsg+0x723/0xbe0
[  721.563231][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  721.563231][   T73]      ___sys_sendmsg+0xee/0x170
[  721.563231][   T73]      __sys_sendmsg+0xcd/0x170
[  721.563231][   T73]      do_syscall_64+0xc6/0x1e0
[  721.563231][   T73] 
[  721.565193][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  721.565193][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  721.565193][   T73]      ipv6_find_idev+0x102/0x170
[  721.565193][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  721.565193][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  721.565193][   T73]      netlink_rcv_skb+0x130/0x360
[  721.565193][   T73]      netlink_unicast+0x449/0x710
[  721.565193][   T73]      netlink_sendmsg+0x723/0xbe0
[  721.565193][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  721.565193][   T73]      ___sys_sendmsg+0xee/0x170
[  721.565193][   T73]      __sys_sendmsg+0xcd/0x170
[  721.565193][   T73]      do_syscall_64+0xc6/0x1e0
[  721.565193][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  721.565193][   T73] 
[  721.566727][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  721.566727][   T73]      neigh_parms_alloc+0x1e5/0x510
[  721.566727][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  721.566727][   T73]      ipv6_find_idev+0x102/0x170
[  721.566727][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  721.566727][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  721.566727][   T73]      netlink_rcv_skb+0x130/0x360
[  721.566727][   T73]      netlink_unicast+0x449/0x710
[  721.566727][   T73]      netlink_sendmsg+0x723/0xbe0
[  721.566727][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  721.566727][   T73]      ___sys_sendmsg+0xee/0x170
[  721.566727][   T73]      __sys_sendmsg+0xcd/0x170
[  721.566727][   T73]      do_syscall_64+0xc6/0x1e0
[  721.566727][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  721.566727][   T73] 
[  721.568411][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  721.568679][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  721.568679][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  721.568679][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  721.568679][   T73]      fib6_nh_init+0xa22/0x1580
[  721.568679][   T73]      ip6_route_info_create+0xf18/0x17d0
[  721.568679][   T73]      ip6_route_add+0x1c/0x140
[  721.568679][   T73]      inet6_rtm_newroute+0x104/0x110
[  721.568679][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  721.568679][   T73]      netlink_rcv_skb+0x130/0x360
[  721.568679][   T73]      netlink_unicast+0x449/0x710
[  721.568679][   T73]      netlink_sendmsg+0x723/0xbe0
[  721.568679][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  721.568679][   T73]      ___sys_sendmsg+0xee/0x170
[  721.568679][   T73]      __sys_sendmsg+0xcd/0x170
[  721.568679][   T73]      do_syscall_64+0xc6/0x1e0
[  721.568679][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  721.568679][   T73] 
[  721.570754][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  721.570754][   T73]      dst_init+0x84/0x4a0
[  721.570754][   T73]      dst_alloc+0x97/0x150
[  721.570754][   T73]      ip6_dst_alloc+0x23/0x90
[  721.570754][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  721.570754][   T73]      ip6_pol_route+0x56f/0x840
[  721.570754][   T73]      fib6_rule_lookup+0x456/0x630
[  721.570754][   T73]      ip6_route_input+0x59c/0xa50
[  721.570754][   T73]      ipv6_rcv+0x397/0x810
[  721.570754][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  721.570754][   T73]      process_backlog+0x101/0x620
[  721.570754][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  721.570754][   T73]      net_rx_action+0x495/0xbe0
[  721.570754][   T73]      __do_softirq+0x1b5/0x7f6
[  721.570754][   T73] 
[  721.572535][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  721.572535][   T73]      netdev_get_by_index+0x5e/0x80
[  721.572535][   T73]      fib6_nh_init+0x3d8/0x1580
[  721.572535][   T73]      ip6_route_info_create+0xf18/0x17d0
[  721.572535][   T73]      ip6_route_add+0x1c/0x140
[  721.572535][   T73]      addrconf_prefix_route+0x2a6/0x430
[  721.572535][   T73]      inet6_addr_add+0x4f8/0xa40
[  721.572535][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  721.572535][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  721.572535][   T73]      netlink_rcv_skb+0x130/0x360
[  721.572535][   T73]      netlink_unicast+0x449/0x710
[  721.572535][   T73]      netlink_sendmsg+0x723/0xbe0
[  721.572535][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  721.572535][   T73]      ___sys_sendmsg+0xee/0x170
[  721.572535][   T73]      __sys_sendmsg+0xcd/0x170
[  721.572535][   T73]      do_syscall_64+0xc6/0x1e0
[  721.572535][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  721.572535][   T73] 
[  721.575391][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  721.575391][   T73]      netdev_get_by_index+0x5e/0x80
[  721.575391][   T73]      fib6_nh_init+0x3d8/0x1580
[  721.575391][   T73]      ip6_route_info_create+0xf18/0x17d0
[  721.575391][   T73]      addrconf_f6i_alloc+0x315/0x560
[  721.575391][   T73]      ipv6_add_addr+0x411/0x2000
[  721.575391][   T73]      inet6_addr_add+0x30e/0xa40
[  721.575391][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  721.575391][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  721.575391][   T73]      netlink_rcv_skb+0x130/0x360
[  721.575391][   T73]      netlink_unicast+0x449/0x710
[  721.575391][   T73]      netlink_sendmsg+0x723/0xbe0
[  721.575391][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  721.575391][   T73]      ___sys_sendmsg+0xee/0x170
[  721.575391][   T73]      __sys_sendmsg+0xcd/0x170
[  721.575391][   T73]      do_syscall_64+0xc6/0x1e0
[  721.575391][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  721.575391][   T73] 
[  721.578931][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  721.578931][   T73]      netdev_get_by_index+0x5e/0x80
[  721.578931][   T73]      fib6_nh_init+0x3d8/0x1580
[  721.578931][   T73]      ip6_route_info_create+0xf18/0x17d0
[  721.578931][   T73]      ip6_route_add+0x1c/0x140
[  721.578931][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  721.578931][   T73]      addrconf_add_dev+0xe2/0x170
[  721.578931][   T73]      inet6_addr_add+0x12f/0xa40
[  721.578931][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  721.578931][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  721.578931][   T73]      netlink_rcv_skb+0x130/0x360
[  721.578931][   T73]      netlink_unicast+0x449/0x710
[  721.578931][   T73]      netlink_sendmsg+0x723/0xbe0
[  721.578931][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  721.578931][   T73]      ___sys_sendmsg+0xee/0x170
[  721.578931][   T73]      __sys_sendmsg+0xcd/0x170
[  721.578931][   T73]      do_syscall_64+0xc6/0x1e0
[  721.578931][   T73] 
[  721.582216][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  721.582216][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  721.582216][   T73]      ipv6_find_idev+0x102/0x170
[  721.582216][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  721.582216][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  721.582216][   T73]      netlink_rcv_skb+0x130/0x360
[  721.582216][   T73]      netlink_unicast+0x449/0x710
[  721.582216][   T73]      netlink_sendmsg+0x723/0xbe0
[  721.582216][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  721.582216][   T73]      ___sys_sendmsg+0xee/0x170
[  721.582216][   T73]      __sys_sendmsg+0xcd/0x170
[  721.582216][   T73]      do_syscall_64+0xc6/0x1e0
[  721.582216][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  721.582216][   T73] 
[  721.584910][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  721.584910][   T73]      neigh_parms_alloc+0x1e5/0x510
[  721.584910][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  721.584910][   T73]      ipv6_find_idev+0x102/0x170
[  721.584910][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  721.584910][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  721.584910][   T73]      netlink_rcv_skb+0x130/0x360
[  721.584910][   T73]      netlink_unicast+0x449/0x710
[  721.584910][   T73]      netlink_sendmsg+0x723/0xbe0
[  721.584910][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  721.584910][   T73]      ___sys_sendmsg+0xee/0x170
[  721.584910][   T73]      __sys_sendmsg+0xcd/0x170
[  721.584910][   T73]      do_syscall_64+0xc6/0x1e0
[  721.584910][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  721.584910][   T73] 
[  721.587892][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  721.588297][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  721.588297][   T73]      netdev_get_by_index+0x5e/0x80
[  721.588297][   T73]      fib6_nh_init+0x3d8/0x1580
[  721.588297][   T73]      ip6_route_info_create+0xf18/0x17d0
[  721.588297][   T73]      addrconf_f6i_alloc+0x265/0x560
[  721.588297][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  721.588297][   T73]      addrconf_join_anycast+0x1c0/0x220
[  721.588297][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  721.588297][   T73]      addrconf_dad_completed+0x12b/0xe20
[  721.588297][   T73]      addrconf_dad_begin+0x310/0x670
[  721.588297][   T73]      addrconf_dad_work+0x10b/0xab0
[  721.588297][   T73]      process_one_work+0x84d/0x18a0
[  721.588297][   T73]      worker_thread+0x587/0xd30
[  721.588297][   T73]      kthread+0x28a/0x350
[  721.588297][   T73]      ret_from_fork+0x31/0x70
[  721.588297][   T73]      ret_from_fork_asm+0x1a/0x30
[  721.588297][   T73] 
[  721.591581][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  721.591581][   T73]      netdev_get_by_index+0x5e/0x80
[  721.591581][   T73]      fib6_nh_init+0x3d8/0x1580
[  721.591581][   T73]      ip6_route_info_create+0xf18/0x17d0
[  721.591581][   T73]      ip6_route_add+0x1c/0x140
[  721.591581][   T73]      addrconf_prefix_route+0x2a6/0x430
[  721.591581][   T73]      inet6_addr_add+0x4f8/0xa40
[  721.591581][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  721.591581][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  721.591581][   T73]      netlink_rcv_skb+0x130/0x360
[  721.591581][   T73]      netlink_unicast+0x449/0x710
[  721.591581][   T73]      netlink_sendmsg+0x723/0xbe0
[  721.591581][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  721.591581][   T73]      ___sys_sendmsg+0xee/0x170
[  721.591581][   T73]      __sys_sendmsg+0xcd/0x170
[  721.591581][   T73]      do_syscall_64+0xc6/0x1e0
[  721.591581][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  721.591581][   T73] 
[  721.595154][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  721.595154][   T73]      netdev_get_by_index+0x5e/0x80
[  721.595154][   T73]      fib6_nh_init+0x3d8/0x1580
[  721.595154][   T73]      ip6_route_info_create+0xf18/0x17d0
[  721.595154][   T73]      addrconf_f6i_alloc+0x315/0x560
[  721.595154][   T73]      ipv6_add_addr+0x411/0x2000
[  721.595154][   T73]      inet6_addr_add+0x30e/0xa40
[  721.595154][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  721.595154][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  721.595154][   T73]      netlink_rcv_skb+0x130/0x360
[  721.595154][   T73]      netlink_unicast+0x449/0x710
[  721.595154][   T73]      netlink_sendmsg+0x723/0xbe0
[  721.595154][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  721.595154][   T73]      ___sys_sendmsg+0xee/0x170
[  721.595154][   T73]      __sys_sendmsg+0xcd/0x170
[  721.595154][   T73]      do_syscall_64+0xc6/0x1e0
[  721.595154][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  721.595154][   T73] 
[  721.598504][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  721.598504][   T73]      netdev_get_by_index+0x5e/0x80
[  721.598504][   T73]      fib6_nh_init+0x3d8/0x1580
[  721.598504][   T73]      ip6_route_info_create+0xf18/0x17d0
[  721.598504][   T73]      ip6_route_add+0x1c/0x140
[  721.598504][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  721.598504][   T73]      addrconf_add_dev+0xe2/0x170
[  721.598504][   T73]      inet6_addr_add+0x12f/0xa40
[  721.598504][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  721.598504][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  721.598504][   T73]      netlink_rcv_skb+0x130/0x360
[  721.598504][   T73]      netlink_unicast+0x449/0x710
[  721.598504][   T73]      netlink_sendmsg+0x723/0xbe0
[  721.598504][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  721.598504][   T73]      ___sys_sendmsg+0xee/0x170
[  721.598504][   T73]      __sys_sendmsg+0xcd/0x170
[  721.598504][   T73]      do_syscall_64+0xc6/0x1e0
[  721.598504][   T73] 
[  721.601837][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  721.601837][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  721.601837][   T73]      ipv6_find_idev+0x102/0x170
[  721.601837][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  721.601837][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  721.601837][   T73]      netlink_rcv_skb+0x130/0x360
[  721.601837][   T73]      netlink_unicast+0x449/0x710
[  721.601837][   T73]      netlink_sendmsg+0x723/0xbe0
[  721.601837][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  721.601837][   T73]      ___sys_sendmsg+0xee/0x170
[  721.601837][   T73]      __sys_sendmsg+0xcd/0x170
[  721.601837][   T73]      do_syscall_64+0xc6/0x1e0
[  721.601837][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  721.601837][   T73] 
[  721.604469][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  721.604469][   T73]      neigh_parms_alloc+0x1e5/0x510
[  721.604469][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  721.604469][   T73]      ipv6_find_idev+0x102/0x170
[  721.604469][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  721.604469][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  721.604469][   T73]      netlink_rcv_skb+0x130/0x360
[  721.604469][   T73]      netlink_unicast+0x449/0x710
[  721.604469][   T73]      netlink_sendmsg+0x723/0xbe0
[  721.604469][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  721.604469][   T73]      ___sys_sendmsg+0xee/0x170
[  721.604469][   T73]      __sys_sendmsg+0xcd/0x170
[  721.604469][   T73]      do_syscall_64+0xc6/0x1e0
[  721.604469][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  721.604469][   T73] 
[  731.847714][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  731.848105][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  731.848105][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  731.848105][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  731.848105][   T73]      fib6_nh_init+0xa22/0x1580
[  731.848105][   T73]      ip6_route_info_create+0xf18/0x17d0
[  731.848105][   T73]      ip6_route_add+0x1c/0x140
[  731.848105][   T73]      inet6_rtm_newroute+0x104/0x110
[  731.848105][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  731.848105][   T73]      netlink_rcv_skb+0x130/0x360
[  731.848105][   T73]      netlink_unicast+0x449/0x710
[  731.848105][   T73]      netlink_sendmsg+0x723/0xbe0
[  731.848105][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  731.848105][   T73]      ___sys_sendmsg+0xee/0x170
[  731.848105][   T73]      __sys_sendmsg+0xcd/0x170
[  731.848105][   T73]      do_syscall_64+0xc6/0x1e0
[  731.848105][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  731.848105][   T73] 
[  731.850014][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  731.850014][   T73]      dst_init+0x84/0x4a0
[  731.850014][   T73]      dst_alloc+0x97/0x150
[  731.850014][   T73]      ip6_dst_alloc+0x23/0x90
[  731.850014][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  731.850014][   T73]      ip6_pol_route+0x56f/0x840
[  731.850014][   T73]      fib6_rule_lookup+0x456/0x630
[  731.850014][   T73]      ip6_route_input+0x59c/0xa50
[  731.850014][   T73]      ipv6_rcv+0x397/0x810
[  731.850014][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  731.850014][   T73]      process_backlog+0x101/0x620
[  731.850014][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  731.850014][   T73]      net_rx_action+0x495/0xbe0
[  731.850014][   T73]      __do_softirq+0x1b5/0x7f6
[  731.850014][   T73] 
[  731.851655][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  731.851655][   T73]      netdev_get_by_index+0x5e/0x80
[  731.851655][   T73]      fib6_nh_init+0x3d8/0x1580
[  731.851655][   T73]      ip6_route_info_create+0xf18/0x17d0
[  731.851655][   T73]      ip6_route_add+0x1c/0x140
[  731.851655][   T73]      addrconf_prefix_route+0x2a6/0x430
[  731.851655][   T73]      inet6_addr_add+0x4f8/0xa40
[  731.851655][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  731.851655][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  731.851655][   T73]      netlink_rcv_skb+0x130/0x360
[  731.851655][   T73]      netlink_unicast+0x449/0x710
[  731.851655][   T73]      netlink_sendmsg+0x723/0xbe0
[  731.851655][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  731.851655][   T73]      ___sys_sendmsg+0xee/0x170
[  731.851655][   T73]      __sys_sendmsg+0xcd/0x170
[  731.851655][   T73]      do_syscall_64+0xc6/0x1e0
[  731.851655][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  731.851655][   T73] 
[  731.853685][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  731.853685][   T73]      netdev_get_by_index+0x5e/0x80
[  731.853685][   T73]      fib6_nh_init+0x3d8/0x1580
[  731.853685][   T73]      ip6_route_info_create+0xf18/0x17d0
[  731.853685][   T73]      addrconf_f6i_alloc+0x315/0x560
[  731.853685][   T73]      ipv6_add_addr+0x411/0x2000
[  731.853685][   T73]      inet6_addr_add+0x30e/0xa40
[  731.853685][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  731.853685][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  731.853685][   T73]      netlink_rcv_skb+0x130/0x360
[  731.853685][   T73]      netlink_unicast+0x449/0x710
[  731.853685][   T73]      netlink_sendmsg+0x723/0xbe0
[  731.853685][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  731.853685][   T73]      ___sys_sendmsg+0xee/0x170
[  731.853685][   T73]      __sys_sendmsg+0xcd/0x170
[  731.853685][   T73]      do_syscall_64+0xc6/0x1e0
[  731.853685][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  731.853685][   T73] 
[  731.855702][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  731.855702][   T73]      netdev_get_by_index+0x5e/0x80
[  731.855702][   T73]      fib6_nh_init+0x3d8/0x1580
[  731.855702][   T73]      ip6_route_info_create+0xf18/0x17d0
[  731.855702][   T73]      ip6_route_add+0x1c/0x140
[  731.855702][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  731.855702][   T73]      addrconf_add_dev+0xe2/0x170
[  731.855702][   T73]      inet6_addr_add+0x12f/0xa40
[  731.855702][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  731.855702][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  731.855702][   T73]      netlink_rcv_skb+0x130/0x360
[  731.855702][   T73]      netlink_unicast+0x449/0x710
[  731.855702][   T73]      netlink_sendmsg+0x723/0xbe0
[  731.855702][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  731.855702][   T73]      ___sys_sendmsg+0xee/0x170
[  731.855702][   T73]      __sys_sendmsg+0xcd/0x170
[  731.855702][   T73]      do_syscall_64+0xc6/0x1e0
[  731.855702][   T73] 
[  731.857673][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  731.857673][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  731.857673][   T73]      ipv6_find_idev+0x102/0x170
[  731.857673][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  731.857673][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  731.857673][   T73]      netlink_rcv_skb+0x130/0x360
[  731.857673][   T73]      netlink_unicast+0x449/0x710
[  731.857673][   T73]      netlink_sendmsg+0x723/0xbe0
[  731.857673][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  731.857673][   T73]      ___sys_sendmsg+0xee/0x170
[  731.857673][   T73]      __sys_sendmsg+0xcd/0x170
[  731.857673][   T73]      do_syscall_64+0xc6/0x1e0
[  731.857673][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  731.857673][   T73] 
[  731.859216][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  731.859216][   T73]      neigh_parms_alloc+0x1e5/0x510
[  731.859216][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  731.859216][   T73]      ipv6_find_idev+0x102/0x170
[  731.859216][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  731.859216][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  731.859216][   T73]      netlink_rcv_skb+0x130/0x360
[  731.859216][   T73]      netlink_unicast+0x449/0x710
[  731.859216][   T73]      netlink_sendmsg+0x723/0xbe0
[  731.859216][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  731.859216][   T73]      ___sys_sendmsg+0xee/0x170
[  731.859216][   T73]      __sys_sendmsg+0xcd/0x170
[  731.859216][   T73]      do_syscall_64+0xc6/0x1e0
[  731.859216][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  731.859216][   T73] 
[  731.860905][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  731.861187][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  731.861187][   T73]      netdev_get_by_index+0x5e/0x80
[  731.861187][   T73]      fib6_nh_init+0x3d8/0x1580
[  731.861187][   T73]      ip6_route_info_create+0xf18/0x17d0
[  731.861187][   T73]      addrconf_f6i_alloc+0x265/0x560
[  731.861187][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  731.861187][   T73]      addrconf_join_anycast+0x1c0/0x220
[  731.861187][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  731.861187][   T73]      addrconf_dad_completed+0x12b/0xe20
[  731.861187][   T73]      addrconf_dad_begin+0x310/0x670
[  731.861187][   T73]      addrconf_dad_work+0x10b/0xab0
[  731.861187][   T73]      process_one_work+0x84d/0x18a0
[  731.861187][   T73]      worker_thread+0x587/0xd30
[  731.861187][   T73]      kthread+0x28a/0x350
[  731.861187][   T73]      ret_from_fork+0x31/0x70
[  731.861187][   T73]      ret_from_fork_asm+0x1a/0x30
[  731.861187][   T73] 
[  731.863136][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  731.863136][   T73]      netdev_get_by_index+0x5e/0x80
[  731.863136][   T73]      fib6_nh_init+0x3d8/0x1580
[  731.863136][   T73]      ip6_route_info_create+0xf18/0x17d0
[  731.863136][   T73]      ip6_route_add+0x1c/0x140
[  731.863136][   T73]      addrconf_prefix_route+0x2a6/0x430
[  731.863136][   T73]      inet6_addr_add+0x4f8/0xa40
[  731.863136][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  731.863136][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  731.863136][   T73]      netlink_rcv_skb+0x130/0x360
[  731.863136][   T73]      netlink_unicast+0x449/0x710
[  731.863136][   T73]      netlink_sendmsg+0x723/0xbe0
[  731.863136][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  731.863136][   T73]      ___sys_sendmsg+0xee/0x170
[  731.863136][   T73]      __sys_sendmsg+0xcd/0x170
[  731.863136][   T73]      do_syscall_64+0xc6/0x1e0
[  731.863136][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  731.863136][   T73] 
[  731.865140][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  731.865140][   T73]      netdev_get_by_index+0x5e/0x80
[  731.865140][   T73]      fib6_nh_init+0x3d8/0x1580
[  731.865140][   T73]      ip6_route_info_create+0xf18/0x17d0
[  731.865140][   T73]      addrconf_f6i_alloc+0x315/0x560
[  731.865140][   T73]      ipv6_add_addr+0x411/0x2000
[  731.865140][   T73]      inet6_addr_add+0x30e/0xa40
[  731.865140][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  731.865140][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  731.865140][   T73]      netlink_rcv_skb+0x130/0x360
[  731.865140][   T73]      netlink_unicast+0x449/0x710
[  731.865140][   T73]      netlink_sendmsg+0x723/0xbe0
[  731.865140][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  731.865140][   T73]      ___sys_sendmsg+0xee/0x170
[  731.865140][   T73]      __sys_sendmsg+0xcd/0x170
[  731.865140][   T73]      do_syscall_64+0xc6/0x1e0
[  731.865140][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  731.865140][   T73] 
[  731.867146][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  731.867146][   T73]      netdev_get_by_index+0x5e/0x80
[  731.867146][   T73]      fib6_nh_init+0x3d8/0x1580
[  731.867146][   T73]      ip6_route_info_create+0xf18/0x17d0
[  731.867146][   T73]      ip6_route_add+0x1c/0x140
[  731.867146][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  731.867146][   T73]      addrconf_add_dev+0xe2/0x170
[  731.867146][   T73]      inet6_addr_add+0x12f/0xa40
[  731.867146][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  731.867146][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  731.867146][   T73]      netlink_rcv_skb+0x130/0x360
[  731.867146][   T73]      netlink_unicast+0x449/0x710
[  731.867146][   T73]      netlink_sendmsg+0x723/0xbe0
[  731.867146][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  731.867146][   T73]      ___sys_sendmsg+0xee/0x170
[  731.867146][   T73]      __sys_sendmsg+0xcd/0x170
[  731.867146][   T73]      do_syscall_64+0xc6/0x1e0
[  731.867146][   T73] 
[  731.869109][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  731.869109][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  731.869109][   T73]      ipv6_find_idev+0x102/0x170
[  731.869109][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  731.869109][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  731.869109][   T73]      netlink_rcv_skb+0x130/0x360
[  731.869109][   T73]      netlink_unicast+0x449/0x710
[  731.869109][   T73]      netlink_sendmsg+0x723/0xbe0
[  731.869109][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  731.869109][   T73]      ___sys_sendmsg+0xee/0x170
[  731.869109][   T73]      __sys_sendmsg+0xcd/0x170
[  731.869109][   T73]      do_syscall_64+0xc6/0x1e0
[  731.869109][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  731.869109][   T73] 
[  731.871019][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  731.871019][   T73]      neigh_parms_alloc+0x1e5/0x510
[  731.871019][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  731.871019][   T73]      ipv6_find_idev+0x102/0x170
[  731.871019][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  731.871019][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  731.871019][   T73]      netlink_rcv_skb+0x130/0x360
[  731.871019][   T73]      netlink_unicast+0x449/0x710
[  731.871019][   T73]      netlink_sendmsg+0x723/0xbe0
[  731.871019][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  731.871019][   T73]      ___sys_sendmsg+0xee/0x170
[  731.871019][   T73]      __sys_sendmsg+0xcd/0x170
[  731.871019][   T73]      do_syscall_64+0xc6/0x1e0
[  731.871019][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  731.871019][   T73] 
[  731.872706][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  731.872980][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  731.872980][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  731.872980][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  731.872980][   T73]      fib6_nh_init+0xa22/0x1580
[  731.872980][   T73]      ip6_route_info_create+0xf18/0x17d0
[  731.872980][   T73]      ip6_route_add+0x1c/0x140
[  731.872980][   T73]      inet6_rtm_newroute+0x104/0x110
[  731.872980][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  731.872980][   T73]      netlink_rcv_skb+0x130/0x360
[  731.872980][   T73]      netlink_unicast+0x449/0x710
[  731.872980][   T73]      netlink_sendmsg+0x723/0xbe0
[  731.872980][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  731.872980][   T73]      ___sys_sendmsg+0xee/0x170
[  731.872980][   T73]      __sys_sendmsg+0xcd/0x170
[  731.872980][   T73]      do_syscall_64+0xc6/0x1e0
[  731.872980][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  731.872980][   T73] 
[  731.875001][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  731.875001][   T73]      dst_init+0x84/0x4a0
[  731.875001][   T73]      dst_alloc+0x97/0x150
[  731.875001][   T73]      ip6_dst_alloc+0x23/0x90
[  731.875001][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  731.875001][   T73]      ip6_pol_route+0x56f/0x840
[  731.875001][   T73]      fib6_rule_lookup+0x456/0x630
[  731.875001][   T73]      ip6_route_input+0x59c/0xa50
[  731.875001][   T73]      ipv6_rcv+0x397/0x810
[  731.875001][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  731.875001][   T73]      process_backlog+0x101/0x620
[  731.875001][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  731.875001][   T73]      net_rx_action+0x495/0xbe0
[  731.875001][   T73]      __do_softirq+0x1b5/0x7f6
[  731.875001][   T73] 
[  731.876696][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  731.876696][   T73]      netdev_get_by_index+0x5e/0x80
[  731.876696][   T73]      fib6_nh_init+0x3d8/0x1580
[  731.876696][   T73]      ip6_route_info_create+0xf18/0x17d0
[  731.876696][   T73]      ip6_route_add+0x1c/0x140
[  731.876696][   T73]      addrconf_prefix_route+0x2a6/0x430
[  731.876696][   T73]      inet6_addr_add+0x4f8/0xa40
[  731.876696][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  731.876696][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  731.876696][   T73]      netlink_rcv_skb+0x130/0x360
[  731.876696][   T73]      netlink_unicast+0x449/0x710
[  731.876696][   T73]      netlink_sendmsg+0x723/0xbe0
[  731.876696][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  731.876696][   T73]      ___sys_sendmsg+0xee/0x170
[  731.876696][   T73]      __sys_sendmsg+0xcd/0x170
[  731.876696][   T73]      do_syscall_64+0xc6/0x1e0
[  731.876696][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  731.876696][   T73] 
[  731.878827][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  731.878827][   T73]      netdev_get_by_index+0x5e/0x80
[  731.878827][   T73]      fib6_nh_init+0x3d8/0x1580
[  731.878827][   T73]      ip6_route_info_create+0xf18/0x17d0
[  731.878827][   T73]      addrconf_f6i_alloc+0x315/0x560
[  731.878827][   T73]      ipv6_add_addr+0x411/0x2000
[  731.878827][   T73]      inet6_addr_add+0x30e/0xa40
[  731.878827][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  731.878827][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  731.878827][   T73]      netlink_rcv_skb+0x130/0x360
[  731.878827][   T73]      netlink_unicast+0x449/0x710
[  731.878827][   T73]      netlink_sendmsg+0x723/0xbe0
[  731.878827][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  731.878827][   T73]      ___sys_sendmsg+0xee/0x170
[  731.878827][   T73]      __sys_sendmsg+0xcd/0x170
[  731.878827][   T73]      do_syscall_64+0xc6/0x1e0
[  731.878827][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  731.878827][   T73] 
[  731.880944][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  731.880944][   T73]      netdev_get_by_index+0x5e/0x80
[  731.880944][   T73]      fib6_nh_init+0x3d8/0x1580
[  731.880944][   T73]      ip6_route_info_create+0xf18/0x17d0
[  731.880944][   T73]      ip6_route_add+0x1c/0x140
[  731.880944][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  731.880944][   T73]      addrconf_add_dev+0xe2/0x170
[  731.880944][   T73]      inet6_addr_add+0x12f/0xa40
[  731.880944][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  731.880944][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  731.880944][   T73]      netlink_rcv_skb+0x130/0x360
[  731.880944][   T73]      netlink_unicast+0x449/0x710
[  731.880944][   T73]      netlink_sendmsg+0x723/0xbe0
[  731.880944][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  731.880944][   T73]      ___sys_sendmsg+0xee/0x170
[  731.880944][   T73]      __sys_sendmsg+0xcd/0x170
[  731.880944][   T73]      do_syscall_64+0xc6/0x1e0
[  731.880944][   T73] 
[  731.883045][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  731.883045][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  731.883045][   T73]      ipv6_find_idev+0x102/0x170
[  731.883045][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  731.883045][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  731.883045][   T73]      netlink_rcv_skb+0x130/0x360
[  731.883045][   T73]      netlink_unicast+0x449/0x710
[  731.883045][   T73]      netlink_sendmsg+0x723/0xbe0
[  731.883045][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  731.883045][   T73]      ___sys_sendmsg+0xee/0x170
[  731.883045][   T73]      __sys_sendmsg+0xcd/0x170
[  731.883045][   T73]      do_syscall_64+0xc6/0x1e0
[  731.883045][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  731.883045][   T73] 
[  731.884654][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  731.884654][   T73]      neigh_parms_alloc+0x1e5/0x510
[  731.884654][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  731.884654][   T73]      ipv6_find_idev+0x102/0x170
[  731.884654][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  731.884654][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  731.884654][   T73]      netlink_rcv_skb+0x130/0x360
[  731.884654][   T73]      netlink_unicast+0x449/0x710
[  731.884654][   T73]      netlink_sendmsg+0x723/0xbe0
[  731.884654][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  731.884654][   T73]      ___sys_sendmsg+0xee/0x170
[  731.884654][   T73]      __sys_sendmsg+0xcd/0x170
[  731.884654][   T73]      do_syscall_64+0xc6/0x1e0
[  731.884654][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  731.884654][   T73] 
[  731.886482][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  731.887200][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  731.887200][   T73]      netdev_get_by_index+0x5e/0x80
[  731.887200][   T73]      fib6_nh_init+0x3d8/0x1580
[  731.887200][   T73]      ip6_route_info_create+0xf18/0x17d0
[  731.887200][   T73]      addrconf_f6i_alloc+0x265/0x560
[  731.887200][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  731.887200][   T73]      addrconf_join_anycast+0x1c0/0x220
[  731.887200][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  731.887200][   T73]      addrconf_dad_completed+0x12b/0xe20
[  731.887200][   T73]      addrconf_dad_begin+0x310/0x670
[  731.887200][   T73]      addrconf_dad_work+0x10b/0xab0
[  731.887200][   T73]      process_one_work+0x84d/0x18a0
[  731.887200][   T73]      worker_thread+0x587/0xd30
[  731.887200][   T73]      kthread+0x28a/0x350
[  731.887200][   T73]      ret_from_fork+0x31/0x70
[  731.887200][   T73]      ret_from_fork_asm+0x1a/0x30
[  731.887200][   T73] 
[  731.889112][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  731.889112][   T73]      netdev_get_by_index+0x5e/0x80
[  731.889112][   T73]      fib6_nh_init+0x3d8/0x1580
[  731.889112][   T73]      ip6_route_info_create+0xf18/0x17d0
[  731.889112][   T73]      ip6_route_add+0x1c/0x140
[  731.889112][   T73]      addrconf_prefix_route+0x2a6/0x430
[  731.889112][   T73]      inet6_addr_add+0x4f8/0xa40
[  731.889112][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  731.889112][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  731.889112][   T73]      netlink_rcv_skb+0x130/0x360
[  731.889112][   T73]      netlink_unicast+0x449/0x710
[  731.889112][   T73]      netlink_sendmsg+0x723/0xbe0
[  731.889112][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  731.889112][   T73]      ___sys_sendmsg+0xee/0x170
[  731.889112][   T73]      __sys_sendmsg+0xcd/0x170
[  731.889112][   T73]      do_syscall_64+0xc6/0x1e0
[  731.889112][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  731.889112][   T73] 
[  731.891165][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  731.891165][   T73]      netdev_get_by_index+0x5e/0x80
[  731.891165][   T73]      fib6_nh_init+0x3d8/0x1580
[  731.891165][   T73]      ip6_route_info_create+0xf18/0x17d0
[  731.891165][   T73]      addrconf_f6i_alloc+0x315/0x560
[  731.891165][   T73]      ipv6_add_addr+0x411/0x2000
[  731.891165][   T73]      inet6_addr_add+0x30e/0xa40
[  731.891165][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  731.891165][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  731.891165][   T73]      netlink_rcv_skb+0x130/0x360
[  731.891165][   T73]      netlink_unicast+0x449/0x710
[  731.891165][   T73]      netlink_sendmsg+0x723/0xbe0
[  731.891165][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  731.891165][   T73]      ___sys_sendmsg+0xee/0x170
[  731.891165][   T73]      __sys_sendmsg+0xcd/0x170
[  731.891165][   T73]      do_syscall_64+0xc6/0x1e0
[  731.891165][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  731.891165][   T73] 
[  731.893297][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  731.893297][   T73]      netdev_get_by_index+0x5e/0x80
[  731.893297][   T73]      fib6_nh_init+0x3d8/0x1580
[  731.893297][   T73]      ip6_route_info_create+0xf18/0x17d0
[  731.893297][   T73]      ip6_route_add+0x1c/0x140
[  731.893297][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  731.893297][   T73]      addrconf_add_dev+0xe2/0x170
[  731.893297][   T73]      inet6_addr_add+0x12f/0xa40
[  731.893297][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  731.893297][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  731.893297][   T73]      netlink_rcv_skb+0x130/0x360
[  731.893297][   T73]      netlink_unicast+0x449/0x710
[  731.893297][   T73]      netlink_sendmsg+0x723/0xbe0
[  731.893297][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  731.893297][   T73]      ___sys_sendmsg+0xee/0x170
[  731.893297][   T73]      __sys_sendmsg+0xcd/0x170
[  731.893297][   T73]      do_syscall_64+0xc6/0x1e0
[  731.893297][   T73] 
[  731.895381][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  731.895381][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  731.895381][   T73]      ipv6_find_idev+0x102/0x170
[  731.895381][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  731.895381][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  731.895381][   T73]      netlink_rcv_skb+0x130/0x360
[  731.895381][   T73]      netlink_unicast+0x449/0x710
[  731.895381][   T73]      netlink_sendmsg+0x723/0xbe0
[  731.895381][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  731.895381][   T73]      ___sys_sendmsg+0xee/0x170
[  731.895381][   T73]      __sys_sendmsg+0xcd/0x170
[  731.895381][   T73]      do_syscall_64+0xc6/0x1e0
[  731.895381][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  731.895381][   T73] 
[  731.896988][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  731.896988][   T73]      neigh_parms_alloc+0x1e5/0x510
[  731.896988][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  731.896988][   T73]      ipv6_find_idev+0x102/0x170
[  731.896988][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  731.896988][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  731.896988][   T73]      netlink_rcv_skb+0x130/0x360
[  731.896988][   T73]      netlink_unicast+0x449/0x710
[  731.896988][   T73]      netlink_sendmsg+0x723/0xbe0
[  731.896988][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  731.896988][   T73]      ___sys_sendmsg+0xee/0x170
[  731.896988][   T73]      __sys_sendmsg+0xcd/0x170
[  731.896988][   T73]      do_syscall_64+0xc6/0x1e0
[  731.896988][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  731.896988][   T73] 
[  738.599775][   T42] INFO: task modprobe:885 blocked for more than 491 seconds.
[  738.600148][   T42]       Not tainted 6.8.0-virtme #1
[  738.600295][   T42] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  738.600516][   T42] task:modprobe        state:D stack:25856 pid:885   tgid:885   ppid:39     flags:0x00004002
[  738.600822][   T42] Call Trace:
[  738.600928][   T42]  <TASK>
[  738.601005][   T42]  __schedule+0x705/0x1ac0
[  738.601156][   T42]  ? __pfx___schedule+0x10/0x10
[  738.601294][   T42]  ? schedule+0x1a5/0x210
[  738.601403][   T42]  ? __pfx_lock_acquire.part.0+0x10/0x10
[  738.601546][   T42]  ? mark_lock+0x38/0x3e0
[  738.601666][   T42]  ? do_raw_spin_lock+0x131/0x270
[  738.601813][   T42]  ? schedule+0x1a5/0x210
[  738.601921][   T42]  schedule+0xdf/0x210
[  738.602026][   T42]  schedule_preempt_disabled+0x15/0x30
[  738.602162][   T42]  rwsem_down_write_slowpath+0x3af/0xab0
[  738.602305][   T42]  ? __pfx_rwsem_down_write_slowpath+0x10/0x10
[  738.602481][   T42]  ? __pfx_lock_acquire.part.0+0x10/0x10
[  738.602628][   T42]  ? lock_acquire+0x1c1/0x220
[  738.602787][   T42]  ? register_pernet_subsys+0x1a/0x50
[  738.602931][   T42]  down_write+0x1c9/0x200
[  738.603038][   T42]  ? __pfx_down_write+0x10/0x10
[  738.603177][   T42]  ? __lock_release+0x103/0x460
[  738.603313][   T42]  ? __create_object+0x5e/0xb0
[  738.603451][   T42]  ? __pfx___lock_release+0x10/0x10
[  738.603596][   T42]  register_pernet_subsys+0x1a/0x50
[  738.603742][   T42]  tcf_register_action+0xa3/0x600
[  738.603880][   T42]  ? __pfx_pedit_init_module+0x10/0x10 [act_pedit]
[  738.604057][   T42]  do_one_initcall+0xc8/0x3f0
[  738.604195][   T42]  ? __pfx_do_one_initcall+0x10/0x10
[  738.604335][   T42]  ? __create_object+0x5e/0xb0
[  738.604478][   T42]  ? kasan_unpoison+0x27/0x60
[  738.604619][   T42]  do_init_module+0x233/0x740
[  738.604780][   T42]  load_module+0x16b5/0x2350
[  738.604930][   T42]  ? __pfx_load_module+0x10/0x10
[  738.605065][   T42]  ? kernel_read_file+0x3d2/0x520
[  738.605208][   T42]  ? kernel_read_file+0x300/0x520
[  738.605364][   T42]  ? __pfx_kernel_read_file+0x10/0x10
[  738.605509][   T42]  ? init_module_from_file+0xd2/0x130
[  738.605656][   T42]  init_module_from_file+0xd2/0x130
[  738.605794][   T42]  ? __pfx_init_module_from_file+0x10/0x10
[  738.605965][   T42]  ? __lock_release+0x103/0x460
[  738.606170][   T42]  ? idempotent_init_module+0x32a/0x620
[  738.606320][   T42]  ? idempotent_init_module+0x32a/0x620
[  738.606457][   T42]  ? do_raw_spin_unlock+0x58/0x220
[  738.606596][   T42]  idempotent_init_module+0x342/0x620
[  738.606745][   T42]  ? __pfx_idempotent_init_module+0x10/0x10
[  738.606933][   T42]  __x64_sys_finit_module+0xbe/0x130
[  738.607072][   T42]  do_syscall_64+0xc6/0x1e0
[  738.607216][   T42]  entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  738.607387][   T42] RIP: 0033:0x7f505b1e4e5d
[  738.607530][   T42] RSP: 002b:00007ffe4f186f28 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[  738.607747][   T42] RAX: ffffffffffffffda RBX: 000055ce7b6ccc80 RCX: 00007f505b1e4e5d
[  738.607952][   T42] RDX: 0000000000000000 RSI: 000055ce5e14da2a RDI: 0000000000000000
[  738.608155][   T42] RBP: 0000000000040000 R08: 0000000000000000 R09: 00007ffe4f187060
[  738.608357][   T42] R10: 0000000000000000 R11: 0000000000000246 R12: 000055ce5e14da2a
[  738.608557][   T42] R13: 000055ce7b6ccac0 R14: 000055ce7b6cd0b0 R15: 000055ce7b6cccf2
[  738.608781][   T42]  </TASK>
[  738.608886][   T42] 
[  738.608886][   T42] Showing all locks held in the system:
[  738.609084][   T42] 2 locks held by kworker/u20:0/39:
[  738.609220][   T42]  #0: ffff888001161d48 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0
[  738.609495][   T42]  #1: ffffc900002c7da0 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0
[  738.609810][   T42] 1 lock held by khungtaskd/42:
[  738.609943][   T42]  #0: ffffffffaf7591e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x350
[  738.610187][   T42] 3 locks held by kworker/u16:1/73:
[  738.610322][   T42]  #0: ffff88800190a948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0
[  738.610593][   T42]  #1: ffffc900004efda0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0
[  738.610842][   T42]  #2: ffffffffaff6a1d0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xbc/0xb60
[  738.611085][   T42] 1 lock held by modprobe/885:
[  738.611214][   T42]  #0: ffffffffaff6a1d0 (pernet_ops_rwsem){++++}-{3:3}, at: register_pernet_subsys+0x1a/0x50
[  738.611490][   T42] 
[  738.611557][   T42] =============================================
[  738.611557][   T42] 
[  741.991810][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  741.992232][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  741.992232][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  741.992232][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  741.992232][   T73]      fib6_nh_init+0xa22/0x1580
[  741.992232][   T73]      ip6_route_info_create+0xf18/0x17d0
[  741.992232][   T73]      ip6_route_add+0x1c/0x140
[  741.992232][   T73]      inet6_rtm_newroute+0x104/0x110
[  741.992232][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  741.992232][   T73]      netlink_rcv_skb+0x130/0x360
[  741.992232][   T73]      netlink_unicast+0x449/0x710
[  741.992232][   T73]      netlink_sendmsg+0x723/0xbe0
[  741.992232][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  741.992232][   T73]      ___sys_sendmsg+0xee/0x170
[  741.992232][   T73]      __sys_sendmsg+0xcd/0x170
[  741.992232][   T73]      do_syscall_64+0xc6/0x1e0
[  741.992232][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  741.992232][   T73] 
[  741.994317][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  741.994317][   T73]      dst_init+0x84/0x4a0
[  741.994317][   T73]      dst_alloc+0x97/0x150
[  741.994317][   T73]      ip6_dst_alloc+0x23/0x90
[  741.994317][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  741.994317][   T73]      ip6_pol_route+0x56f/0x840
[  741.994317][   T73]      fib6_rule_lookup+0x456/0x630
[  741.994317][   T73]      ip6_route_input+0x59c/0xa50
[  741.994317][   T73]      ipv6_rcv+0x397/0x810
[  741.994317][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  741.994317][   T73]      process_backlog+0x101/0x620
[  741.994317][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  741.994317][   T73]      net_rx_action+0x495/0xbe0
[  741.994317][   T73]      __do_softirq+0x1b5/0x7f6
[  741.994317][   T73] 
[  741.996131][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  741.996131][   T73]      netdev_get_by_index+0x5e/0x80
[  741.996131][   T73]      fib6_nh_init+0x3d8/0x1580
[  741.996131][   T73]      ip6_route_info_create+0xf18/0x17d0
[  741.996131][   T73]      ip6_route_add+0x1c/0x140
[  741.996131][   T73]      addrconf_prefix_route+0x2a6/0x430
[  741.996131][   T73]      inet6_addr_add+0x4f8/0xa40
[  741.996131][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  741.996131][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  741.996131][   T73]      netlink_rcv_skb+0x130/0x360
[  741.996131][   T73]      netlink_unicast+0x449/0x710
[  741.996131][   T73]      netlink_sendmsg+0x723/0xbe0
[  741.996131][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  741.996131][   T73]      ___sys_sendmsg+0xee/0x170
[  741.996131][   T73]      __sys_sendmsg+0xcd/0x170
[  741.996131][   T73]      do_syscall_64+0xc6/0x1e0
[  741.996131][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  741.996131][   T73] 
[  741.998348][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  741.998348][   T73]      netdev_get_by_index+0x5e/0x80
[  741.998348][   T73]      fib6_nh_init+0x3d8/0x1580
[  741.998348][   T73]      ip6_route_info_create+0xf18/0x17d0
[  741.998348][   T73]      addrconf_f6i_alloc+0x315/0x560
[  741.998348][   T73]      ipv6_add_addr+0x411/0x2000
[  741.998348][   T73]      inet6_addr_add+0x30e/0xa40
[  741.998348][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  741.998348][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  741.998348][   T73]      netlink_rcv_skb+0x130/0x360
[  741.998348][   T73]      netlink_unicast+0x449/0x710
[  741.998348][   T73]      netlink_sendmsg+0x723/0xbe0
[  741.998348][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  741.998348][   T73]      ___sys_sendmsg+0xee/0x170
[  741.998348][   T73]      __sys_sendmsg+0xcd/0x170
[  741.998348][   T73]      do_syscall_64+0xc6/0x1e0
[  741.998348][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  741.998348][   T73] 
[  742.000342][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  742.000342][   T73]      netdev_get_by_index+0x5e/0x80
[  742.000342][   T73]      fib6_nh_init+0x3d8/0x1580
[  742.000342][   T73]      ip6_route_info_create+0xf18/0x17d0
[  742.000342][   T73]      ip6_route_add+0x1c/0x140
[  742.000342][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  742.000342][   T73]      addrconf_add_dev+0xe2/0x170
[  742.000342][   T73]      inet6_addr_add+0x12f/0xa40
[  742.000342][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  742.000342][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  742.000342][   T73]      netlink_rcv_skb+0x130/0x360
[  742.000342][   T73]      netlink_unicast+0x449/0x710
[  742.000342][   T73]      netlink_sendmsg+0x723/0xbe0
[  742.000342][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  742.000342][   T73]      ___sys_sendmsg+0xee/0x170
[  742.000342][   T73]      __sys_sendmsg+0xcd/0x170
[  742.000342][   T73]      do_syscall_64+0xc6/0x1e0
[  742.000342][   T73] 
[  742.002322][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  742.002322][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  742.002322][   T73]      ipv6_find_idev+0x102/0x170
[  742.002322][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  742.002322][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  742.002322][   T73]      netlink_rcv_skb+0x130/0x360
[  742.002322][   T73]      netlink_unicast+0x449/0x710
[  742.002322][   T73]      netlink_sendmsg+0x723/0xbe0
[  742.002322][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  742.002322][   T73]      ___sys_sendmsg+0xee/0x170
[  742.002322][   T73]      __sys_sendmsg+0xcd/0x170
[  742.002322][   T73]      do_syscall_64+0xc6/0x1e0
[  742.002322][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  742.002322][   T73] 
[  742.003869][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  742.003869][   T73]      neigh_parms_alloc+0x1e5/0x510
[  742.003869][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  742.003869][   T73]      ipv6_find_idev+0x102/0x170
[  742.003869][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  742.003869][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  742.003869][   T73]      netlink_rcv_skb+0x130/0x360
[  742.003869][   T73]      netlink_unicast+0x449/0x710
[  742.003869][   T73]      netlink_sendmsg+0x723/0xbe0
[  742.003869][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  742.003869][   T73]      ___sys_sendmsg+0xee/0x170
[  742.003869][   T73]      __sys_sendmsg+0xcd/0x170
[  742.003869][   T73]      do_syscall_64+0xc6/0x1e0
[  742.003869][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  742.003869][   T73] 
[  742.005581][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  742.005876][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  742.005876][   T73]      netdev_get_by_index+0x5e/0x80
[  742.005876][   T73]      fib6_nh_init+0x3d8/0x1580
[  742.005876][   T73]      ip6_route_info_create+0xf18/0x17d0
[  742.005876][   T73]      addrconf_f6i_alloc+0x265/0x560
[  742.005876][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  742.005876][   T73]      addrconf_join_anycast+0x1c0/0x220
[  742.005876][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  742.005876][   T73]      addrconf_dad_completed+0x12b/0xe20
[  742.005876][   T73]      addrconf_dad_begin+0x310/0x670
[  742.005876][   T73]      addrconf_dad_work+0x10b/0xab0
[  742.005876][   T73]      process_one_work+0x84d/0x18a0
[  742.005876][   T73]      worker_thread+0x587/0xd30
[  742.005876][   T73]      kthread+0x28a/0x350
[  742.005876][   T73]      ret_from_fork+0x31/0x70
[  742.005876][   T73]      ret_from_fork_asm+0x1a/0x30
[  742.005876][   T73] 
[  742.007798][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  742.007798][   T73]      netdev_get_by_index+0x5e/0x80
[  742.007798][   T73]      fib6_nh_init+0x3d8/0x1580
[  742.007798][   T73]      ip6_route_info_create+0xf18/0x17d0
[  742.007798][   T73]      ip6_route_add+0x1c/0x140
[  742.007798][   T73]      addrconf_prefix_route+0x2a6/0x430
[  742.007798][   T73]      inet6_addr_add+0x4f8/0xa40
[  742.007798][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  742.007798][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  742.007798][   T73]      netlink_rcv_skb+0x130/0x360
[  742.007798][   T73]      netlink_unicast+0x449/0x710
[  742.007798][   T73]      netlink_sendmsg+0x723/0xbe0
[  742.007798][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  742.007798][   T73]      ___sys_sendmsg+0xee/0x170
[  742.007798][   T73]      __sys_sendmsg+0xcd/0x170
[  742.007798][   T73]      do_syscall_64+0xc6/0x1e0
[  742.007798][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  742.007798][   T73] 
[  742.009795][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  742.009795][   T73]      netdev_get_by_index+0x5e/0x80
[  742.009795][   T73]      fib6_nh_init+0x3d8/0x1580
[  742.009795][   T73]      ip6_route_info_create+0xf18/0x17d0
[  742.009795][   T73]      addrconf_f6i_alloc+0x315/0x560
[  742.009795][   T73]      ipv6_add_addr+0x411/0x2000
[  742.009795][   T73]      inet6_addr_add+0x30e/0xa40
[  742.009795][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  742.009795][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  742.009795][   T73]      netlink_rcv_skb+0x130/0x360
[  742.009795][   T73]      netlink_unicast+0x449/0x710
[  742.009795][   T73]      netlink_sendmsg+0x723/0xbe0
[  742.009795][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  742.009795][   T73]      ___sys_sendmsg+0xee/0x170
[  742.009795][   T73]      __sys_sendmsg+0xcd/0x170
[  742.009795][   T73]      do_syscall_64+0xc6/0x1e0
[  742.009795][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  742.009795][   T73] 
[  742.011796][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  742.011796][   T73]      netdev_get_by_index+0x5e/0x80
[  742.011796][   T73]      fib6_nh_init+0x3d8/0x1580
[  742.011796][   T73]      ip6_route_info_create+0xf18/0x17d0
[  742.011796][   T73]      ip6_route_add+0x1c/0x140
[  742.011796][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  742.011796][   T73]      addrconf_add_dev+0xe2/0x170
[  742.011796][   T73]      inet6_addr_add+0x12f/0xa40
[  742.011796][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  742.011796][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  742.011796][   T73]      netlink_rcv_skb+0x130/0x360
[  742.011796][   T73]      netlink_unicast+0x449/0x710
[  742.011796][   T73]      netlink_sendmsg+0x723/0xbe0
[  742.011796][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  742.011796][   T73]      ___sys_sendmsg+0xee/0x170
[  742.011796][   T73]      __sys_sendmsg+0xcd/0x170
[  742.011796][   T73]      do_syscall_64+0xc6/0x1e0
[  742.011796][   T73] 
[  742.013750][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  742.013750][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  742.013750][   T73]      ipv6_find_idev+0x102/0x170
[  742.013750][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  742.013750][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  742.013750][   T73]      netlink_rcv_skb+0x130/0x360
[  742.013750][   T73]      netlink_unicast+0x449/0x710
[  742.013750][   T73]      netlink_sendmsg+0x723/0xbe0
[  742.013750][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  742.013750][   T73]      ___sys_sendmsg+0xee/0x170
[  742.013750][   T73]      __sys_sendmsg+0xcd/0x170
[  742.013750][   T73]      do_syscall_64+0xc6/0x1e0
[  742.013750][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  742.013750][   T73] 
[  742.015292][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  742.015292][   T73]      neigh_parms_alloc+0x1e5/0x510
[  742.015292][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  742.015292][   T73]      ipv6_find_idev+0x102/0x170
[  742.015292][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  742.015292][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  742.015292][   T73]      netlink_rcv_skb+0x130/0x360
[  742.015292][   T73]      netlink_unicast+0x449/0x710
[  742.015292][   T73]      netlink_sendmsg+0x723/0xbe0
[  742.015292][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  742.015292][   T73]      ___sys_sendmsg+0xee/0x170
[  742.015292][   T73]      __sys_sendmsg+0xcd/0x170
[  742.015292][   T73]      do_syscall_64+0xc6/0x1e0
[  742.015292][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  742.015292][   T73] 
[  742.016970][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  742.017249][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  742.017249][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  742.017249][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  742.017249][   T73]      fib6_nh_init+0xa22/0x1580
[  742.017249][   T73]      ip6_route_info_create+0xf18/0x17d0
[  742.017249][   T73]      ip6_route_add+0x1c/0x140
[  742.017249][   T73]      inet6_rtm_newroute+0x104/0x110
[  742.017249][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  742.017249][   T73]      netlink_rcv_skb+0x130/0x360
[  742.017249][   T73]      netlink_unicast+0x449/0x710
[  742.017249][   T73]      netlink_sendmsg+0x723/0xbe0
[  742.017249][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  742.017249][   T73]      ___sys_sendmsg+0xee/0x170
[  742.017249][   T73]      __sys_sendmsg+0xcd/0x170
[  742.017249][   T73]      do_syscall_64+0xc6/0x1e0
[  742.017249][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  742.017249][   T73] 
[  742.019245][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  742.019245][   T73]      dst_init+0x84/0x4a0
[  742.019245][   T73]      dst_alloc+0x97/0x150
[  742.019245][   T73]      ip6_dst_alloc+0x23/0x90
[  742.019245][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  742.019245][   T73]      ip6_pol_route+0x56f/0x840
[  742.019245][   T73]      fib6_rule_lookup+0x456/0x630
[  742.019245][   T73]      ip6_route_input+0x59c/0xa50
[  742.019245][   T73]      ipv6_rcv+0x397/0x810
[  742.019245][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  742.019245][   T73]      process_backlog+0x101/0x620
[  742.019245][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  742.019245][   T73]      net_rx_action+0x495/0xbe0
[  742.019245][   T73]      __do_softirq+0x1b5/0x7f6
[  742.019245][   T73] 
[  742.021120][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  742.021120][   T73]      netdev_get_by_index+0x5e/0x80
[  742.021120][   T73]      fib6_nh_init+0x3d8/0x1580
[  742.021120][   T73]      ip6_route_info_create+0xf18/0x17d0
[  742.021120][   T73]      ip6_route_add+0x1c/0x140
[  742.021120][   T73]      addrconf_prefix_route+0x2a6/0x430
[  742.021120][   T73]      inet6_addr_add+0x4f8/0xa40
[  742.021120][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  742.021120][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  742.021120][   T73]      netlink_rcv_skb+0x130/0x360
[  742.021120][   T73]      netlink_unicast+0x449/0x710
[  742.021120][   T73]      netlink_sendmsg+0x723/0xbe0
[  742.021120][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  742.021120][   T73]      ___sys_sendmsg+0xee/0x170
[  742.021120][   T73]      __sys_sendmsg+0xcd/0x170
[  742.021120][   T73]      do_syscall_64+0xc6/0x1e0
[  742.021120][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  742.021120][   T73] 
[  742.023305][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  742.023305][   T73]      netdev_get_by_index+0x5e/0x80
[  742.023305][   T73]      fib6_nh_init+0x3d8/0x1580
[  742.023305][   T73]      ip6_route_info_create+0xf18/0x17d0
[  742.023305][   T73]      addrconf_f6i_alloc+0x315/0x560
[  742.023305][   T73]      ipv6_add_addr+0x411/0x2000
[  742.023305][   T73]      inet6_addr_add+0x30e/0xa40
[  742.023305][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  742.023305][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  742.023305][   T73]      netlink_rcv_skb+0x130/0x360
[  742.023305][   T73]      netlink_unicast+0x449/0x710
[  742.023305][   T73]      netlink_sendmsg+0x723/0xbe0
[  742.023305][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  742.023305][   T73]      ___sys_sendmsg+0xee/0x170
[  742.023305][   T73]      __sys_sendmsg+0xcd/0x170
[  742.023305][   T73]      do_syscall_64+0xc6/0x1e0
[  742.023305][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  742.023305][   T73] 
[  742.025549][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  742.025549][   T73]      netdev_get_by_index+0x5e/0x80
[  742.025549][   T73]      fib6_nh_init+0x3d8/0x1580
[  742.025549][   T73]      ip6_route_info_create+0xf18/0x17d0
[  742.025549][   T73]      ip6_route_add+0x1c/0x140
[  742.025549][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  742.025549][   T73]      addrconf_add_dev+0xe2/0x170
[  742.025549][   T73]      inet6_addr_add+0x12f/0xa40
[  742.025549][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  742.025549][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  742.025549][   T73]      netlink_rcv_skb+0x130/0x360
[  742.025549][   T73]      netlink_unicast+0x449/0x710
[  742.025549][   T73]      netlink_sendmsg+0x723/0xbe0
[  742.025549][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  742.025549][   T73]      ___sys_sendmsg+0xee/0x170
[  742.025549][   T73]      __sys_sendmsg+0xcd/0x170
[  742.025549][   T73]      do_syscall_64+0xc6/0x1e0
[  742.025549][   T73] 
[  742.027719][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  742.027719][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  742.027719][   T73]      ipv6_find_idev+0x102/0x170
[  742.027719][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  742.027719][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  742.027719][   T73]      netlink_rcv_skb+0x130/0x360
[  742.027719][   T73]      netlink_unicast+0x449/0x710
[  742.027719][   T73]      netlink_sendmsg+0x723/0xbe0
[  742.027719][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  742.027719][   T73]      ___sys_sendmsg+0xee/0x170
[  742.027719][   T73]      __sys_sendmsg+0xcd/0x170
[  742.027719][   T73]      do_syscall_64+0xc6/0x1e0
[  742.027719][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  742.027719][   T73] 
[  742.029449][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  742.029449][   T73]      neigh_parms_alloc+0x1e5/0x510
[  742.029449][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  742.029449][   T73]      ipv6_find_idev+0x102/0x170
[  742.029449][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  742.029449][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  742.029449][   T73]      netlink_rcv_skb+0x130/0x360
[  742.029449][   T73]      netlink_unicast+0x449/0x710
[  742.029449][   T73]      netlink_sendmsg+0x723/0xbe0
[  742.029449][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  742.029449][   T73]      ___sys_sendmsg+0xee/0x170
[  742.029449][   T73]      __sys_sendmsg+0xcd/0x170
[  742.029449][   T73]      do_syscall_64+0xc6/0x1e0
[  742.029449][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  742.029449][   T73] 
[  742.031790][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  742.032064][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  742.032064][   T73]      netdev_get_by_index+0x5e/0x80
[  742.032064][   T73]      fib6_nh_init+0x3d8/0x1580
[  742.032064][   T73]      ip6_route_info_create+0xf18/0x17d0
[  742.032064][   T73]      addrconf_f6i_alloc+0x265/0x560
[  742.032064][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  742.032064][   T73]      addrconf_join_anycast+0x1c0/0x220
[  742.032064][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  742.032064][   T73]      addrconf_dad_completed+0x12b/0xe20
[  742.032064][   T73]      addrconf_dad_begin+0x310/0x670
[  742.032064][   T73]      addrconf_dad_work+0x10b/0xab0
[  742.032064][   T73]      process_one_work+0x84d/0x18a0
[  742.032064][   T73]      worker_thread+0x587/0xd30
[  742.032064][   T73]      kthread+0x28a/0x350
[  742.032064][   T73]      ret_from_fork+0x31/0x70
[  742.032064][   T73]      ret_from_fork_asm+0x1a/0x30
[  742.032064][   T73] 
[  742.033973][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  742.033973][   T73]      netdev_get_by_index+0x5e/0x80
[  742.033973][   T73]      fib6_nh_init+0x3d8/0x1580
[  742.033973][   T73]      ip6_route_info_create+0xf18/0x17d0
[  742.033973][   T73]      ip6_route_add+0x1c/0x140
[  742.033973][   T73]      addrconf_prefix_route+0x2a6/0x430
[  742.033973][   T73]      inet6_addr_add+0x4f8/0xa40
[  742.033973][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  742.033973][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  742.033973][   T73]      netlink_rcv_skb+0x130/0x360
[  742.033973][   T73]      netlink_unicast+0x449/0x710
[  742.033973][   T73]      netlink_sendmsg+0x723/0xbe0
[  742.033973][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  742.033973][   T73]      ___sys_sendmsg+0xee/0x170
[  742.033973][   T73]      __sys_sendmsg+0xcd/0x170
[  742.033973][   T73]      do_syscall_64+0xc6/0x1e0
[  742.033973][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  742.033973][   T73] 
[  742.036190][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  742.036190][   T73]      netdev_get_by_index+0x5e/0x80
[  742.036190][   T73]      fib6_nh_init+0x3d8/0x1580
[  742.036190][   T73]      ip6_route_info_create+0xf18/0x17d0
[  742.036190][   T73]      addrconf_f6i_alloc+0x315/0x560
[  742.036190][   T73]      ipv6_add_addr+0x411/0x2000
[  742.036190][   T73]      inet6_addr_add+0x30e/0xa40
[  742.036190][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  742.036190][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  742.036190][   T73]      netlink_rcv_skb+0x130/0x360
[  742.036190][   T73]      netlink_unicast+0x449/0x710
[  742.036190][   T73]      netlink_sendmsg+0x723/0xbe0
[  742.036190][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  742.036190][   T73]      ___sys_sendmsg+0xee/0x170
[  742.036190][   T73]      __sys_sendmsg+0xcd/0x170
[  742.036190][   T73]      do_syscall_64+0xc6/0x1e0
[  742.036190][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  742.036190][   T73] 
[  742.038572][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  742.038572][   T73]      netdev_get_by_index+0x5e/0x80
[  742.038572][   T73]      fib6_nh_init+0x3d8/0x1580
[  742.038572][   T73]      ip6_route_info_create+0xf18/0x17d0
[  742.038572][   T73]      ip6_route_add+0x1c/0x140
[  742.038572][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  742.038572][   T73]      addrconf_add_dev+0xe2/0x170
[  742.038572][   T73]      inet6_addr_add+0x12f/0xa40
[  742.038572][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  742.038572][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  742.038572][   T73]      netlink_rcv_skb+0x130/0x360
[  742.038572][   T73]      netlink_unicast+0x449/0x710
[  742.038572][   T73]      netlink_sendmsg+0x723/0xbe0
[  742.038572][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  742.038572][   T73]      ___sys_sendmsg+0xee/0x170
[  742.038572][   T73]      __sys_sendmsg+0xcd/0x170
[  742.038572][   T73]      do_syscall_64+0xc6/0x1e0
[  742.038572][   T73] 
[  742.040859][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  742.040859][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  742.040859][   T73]      ipv6_find_idev+0x102/0x170
[  742.040859][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  742.040859][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  742.040859][   T73]      netlink_rcv_skb+0x130/0x360
[  742.040859][   T73]      netlink_unicast+0x449/0x710
[  742.040859][   T73]      netlink_sendmsg+0x723/0xbe0
[  742.040859][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  742.040859][   T73]      ___sys_sendmsg+0xee/0x170
[  742.040859][   T73]      __sys_sendmsg+0xcd/0x170
[  742.040859][   T73]      do_syscall_64+0xc6/0x1e0
[  742.040859][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  742.040859][   T73] 
[  742.042601][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  742.042601][   T73]      neigh_parms_alloc+0x1e5/0x510
[  742.042601][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  742.042601][   T73]      ipv6_find_idev+0x102/0x170
[  742.042601][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  742.042601][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  742.042601][   T73]      netlink_rcv_skb+0x130/0x360
[  742.042601][   T73]      netlink_unicast+0x449/0x710
[  742.042601][   T73]      netlink_sendmsg+0x723/0xbe0
[  742.042601][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  742.042601][   T73]      ___sys_sendmsg+0xee/0x170
[  742.042601][   T73]      __sys_sendmsg+0xcd/0x170
[  742.042601][   T73]      do_syscall_64+0xc6/0x1e0
[  742.042601][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  742.042601][   T73] 
[  752.295785][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  752.296343][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  752.296343][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  752.296343][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  752.296343][   T73]      fib6_nh_init+0xa22/0x1580
[  752.296343][   T73]      ip6_route_info_create+0xf18/0x17d0
[  752.296343][   T73]      ip6_route_add+0x1c/0x140
[  752.296343][   T73]      inet6_rtm_newroute+0x104/0x110
[  752.296343][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  752.296343][   T73]      netlink_rcv_skb+0x130/0x360
[  752.296343][   T73]      netlink_unicast+0x449/0x710
[  752.296343][   T73]      netlink_sendmsg+0x723/0xbe0
[  752.296343][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  752.296343][   T73]      ___sys_sendmsg+0xee/0x170
[  752.296343][   T73]      __sys_sendmsg+0xcd/0x170
[  752.296343][   T73]      do_syscall_64+0xc6/0x1e0
[  752.296343][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  752.296343][   T73] 
[  752.299165][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  752.299165][   T73]      dst_init+0x84/0x4a0
[  752.299165][   T73]      dst_alloc+0x97/0x150
[  752.299165][   T73]      ip6_dst_alloc+0x23/0x90
[  752.299165][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  752.299165][   T73]      ip6_pol_route+0x56f/0x840
[  752.299165][   T73]      fib6_rule_lookup+0x456/0x630
[  752.299165][   T73]      ip6_route_input+0x59c/0xa50
[  752.299165][   T73]      ipv6_rcv+0x397/0x810
[  752.299165][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  752.299165][   T73]      process_backlog+0x101/0x620
[  752.299165][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  752.299165][   T73]      net_rx_action+0x495/0xbe0
[  752.299165][   T73]      __do_softirq+0x1b5/0x7f6
[  752.299165][   T73] 
[  752.301726][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  752.301726][   T73]      netdev_get_by_index+0x5e/0x80
[  752.301726][   T73]      fib6_nh_init+0x3d8/0x1580
[  752.301726][   T73]      ip6_route_info_create+0xf18/0x17d0
[  752.301726][   T73]      ip6_route_add+0x1c/0x140
[  752.301726][   T73]      addrconf_prefix_route+0x2a6/0x430
[  752.301726][   T73]      inet6_addr_add+0x4f8/0xa40
[  752.301726][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  752.301726][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  752.301726][   T73]      netlink_rcv_skb+0x130/0x360
[  752.301726][   T73]      netlink_unicast+0x449/0x710
[  752.301726][   T73]      netlink_sendmsg+0x723/0xbe0
[  752.301726][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  752.301726][   T73]      ___sys_sendmsg+0xee/0x170
[  752.301726][   T73]      __sys_sendmsg+0xcd/0x170
[  752.301726][   T73]      do_syscall_64+0xc6/0x1e0
[  752.301726][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  752.301726][   T73] 
[  752.305177][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  752.305177][   T73]      netdev_get_by_index+0x5e/0x80
[  752.305177][   T73]      fib6_nh_init+0x3d8/0x1580
[  752.305177][   T73]      ip6_route_info_create+0xf18/0x17d0
[  752.305177][   T73]      addrconf_f6i_alloc+0x315/0x560
[  752.305177][   T73]      ipv6_add_addr+0x411/0x2000
[  752.305177][   T73]      inet6_addr_add+0x30e/0xa40
[  752.305177][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  752.305177][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  752.305177][   T73]      netlink_rcv_skb+0x130/0x360
[  752.305177][   T73]      netlink_unicast+0x449/0x710
[  752.305177][   T73]      netlink_sendmsg+0x723/0xbe0
[  752.305177][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  752.305177][   T73]      ___sys_sendmsg+0xee/0x170
[  752.305177][   T73]      __sys_sendmsg+0xcd/0x170
[  752.305177][   T73]      do_syscall_64+0xc6/0x1e0
[  752.305177][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  752.305177][   T73] 
[  752.307938][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  752.307938][   T73]      netdev_get_by_index+0x5e/0x80
[  752.307938][   T73]      fib6_nh_init+0x3d8/0x1580
[  752.307938][   T73]      ip6_route_info_create+0xf18/0x17d0
[  752.307938][   T73]      ip6_route_add+0x1c/0x140
[  752.307938][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  752.307938][   T73]      addrconf_add_dev+0xe2/0x170
[  752.307938][   T73]      inet6_addr_add+0x12f/0xa40
[  752.307938][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  752.307938][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  752.307938][   T73]      netlink_rcv_skb+0x130/0x360
[  752.307938][   T73]      netlink_unicast+0x449/0x710
[  752.307938][   T73]      netlink_sendmsg+0x723/0xbe0
[  752.307938][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  752.307938][   T73]      ___sys_sendmsg+0xee/0x170
[  752.307938][   T73]      __sys_sendmsg+0xcd/0x170
[  752.307938][   T73]      do_syscall_64+0xc6/0x1e0
[  752.307938][   T73] 
[  752.309948][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  752.309948][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  752.309948][   T73]      ipv6_find_idev+0x102/0x170
[  752.309948][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  752.309948][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  752.309948][   T73]      netlink_rcv_skb+0x130/0x360
[  752.309948][   T73]      netlink_unicast+0x449/0x710
[  752.309948][   T73]      netlink_sendmsg+0x723/0xbe0
[  752.309948][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  752.309948][   T73]      ___sys_sendmsg+0xee/0x170
[  752.309948][   T73]      __sys_sendmsg+0xcd/0x170
[  752.309948][   T73]      do_syscall_64+0xc6/0x1e0
[  752.309948][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  752.309948][   T73] 
[  752.311519][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  752.311519][   T73]      neigh_parms_alloc+0x1e5/0x510
[  752.311519][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  752.311519][   T73]      ipv6_find_idev+0x102/0x170
[  752.311519][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  752.311519][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  752.311519][   T73]      netlink_rcv_skb+0x130/0x360
[  752.311519][   T73]      netlink_unicast+0x449/0x710
[  752.311519][   T73]      netlink_sendmsg+0x723/0xbe0
[  752.311519][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  752.311519][   T73]      ___sys_sendmsg+0xee/0x170
[  752.311519][   T73]      __sys_sendmsg+0xcd/0x170
[  752.311519][   T73]      do_syscall_64+0xc6/0x1e0
[  752.311519][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  752.311519][   T73] 
[  752.313371][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  752.313673][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  752.313673][   T73]      netdev_get_by_index+0x5e/0x80
[  752.313673][   T73]      fib6_nh_init+0x3d8/0x1580
[  752.313673][   T73]      ip6_route_info_create+0xf18/0x17d0
[  752.313673][   T73]      addrconf_f6i_alloc+0x265/0x560
[  752.313673][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  752.313673][   T73]      addrconf_join_anycast+0x1c0/0x220
[  752.313673][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  752.313673][   T73]      addrconf_dad_completed+0x12b/0xe20
[  752.313673][   T73]      addrconf_dad_begin+0x310/0x670
[  752.313673][   T73]      addrconf_dad_work+0x10b/0xab0
[  752.313673][   T73]      process_one_work+0x84d/0x18a0
[  752.313673][   T73]      worker_thread+0x587/0xd30
[  752.313673][   T73]      kthread+0x28a/0x350
[  752.313673][   T73]      ret_from_fork+0x31/0x70
[  752.313673][   T73]      ret_from_fork_asm+0x1a/0x30
[  752.313673][   T73] 
[  752.315614][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  752.315614][   T73]      netdev_get_by_index+0x5e/0x80
[  752.315614][   T73]      fib6_nh_init+0x3d8/0x1580
[  752.315614][   T73]      ip6_route_info_create+0xf18/0x17d0
[  752.315614][   T73]      ip6_route_add+0x1c/0x140
[  752.315614][   T73]      addrconf_prefix_route+0x2a6/0x430
[  752.315614][   T73]      inet6_addr_add+0x4f8/0xa40
[  752.315614][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  752.315614][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  752.315614][   T73]      netlink_rcv_skb+0x130/0x360
[  752.315614][   T73]      netlink_unicast+0x449/0x710
[  752.315614][   T73]      netlink_sendmsg+0x723/0xbe0
[  752.315614][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  752.315614][   T73]      ___sys_sendmsg+0xee/0x170
[  752.315614][   T73]      __sys_sendmsg+0xcd/0x170
[  752.315614][   T73]      do_syscall_64+0xc6/0x1e0
[  752.315614][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  752.315614][   T73] 
[  752.317633][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  752.317633][   T73]      netdev_get_by_index+0x5e/0x80
[  752.317633][   T73]      fib6_nh_init+0x3d8/0x1580
[  752.317633][   T73]      ip6_route_info_create+0xf18/0x17d0
[  752.317633][   T73]      addrconf_f6i_alloc+0x315/0x560
[  752.317633][   T73]      ipv6_add_addr+0x411/0x2000
[  752.317633][   T73]      inet6_addr_add+0x30e/0xa40
[  752.317633][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  752.317633][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  752.317633][   T73]      netlink_rcv_skb+0x130/0x360
[  752.317633][   T73]      netlink_unicast+0x449/0x710
[  752.317633][   T73]      netlink_sendmsg+0x723/0xbe0
[  752.317633][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  752.317633][   T73]      ___sys_sendmsg+0xee/0x170
[  752.317633][   T73]      __sys_sendmsg+0xcd/0x170
[  752.317633][   T73]      do_syscall_64+0xc6/0x1e0
[  752.317633][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  752.317633][   T73] 
[  752.319663][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  752.319663][   T73]      netdev_get_by_index+0x5e/0x80
[  752.319663][   T73]      fib6_nh_init+0x3d8/0x1580
[  752.319663][   T73]      ip6_route_info_create+0xf18/0x17d0
[  752.319663][   T73]      ip6_route_add+0x1c/0x140
[  752.319663][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  752.319663][   T73]      addrconf_add_dev+0xe2/0x170
[  752.319663][   T73]      inet6_addr_add+0x12f/0xa40
[  752.319663][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  752.319663][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  752.319663][   T73]      netlink_rcv_skb+0x130/0x360
[  752.319663][   T73]      netlink_unicast+0x449/0x710
[  752.319663][   T73]      netlink_sendmsg+0x723/0xbe0
[  752.319663][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  752.319663][   T73]      ___sys_sendmsg+0xee/0x170
[  752.319663][   T73]      __sys_sendmsg+0xcd/0x170
[  752.319663][   T73]      do_syscall_64+0xc6/0x1e0
[  752.319663][   T73] 
[  752.321827][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  752.321827][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  752.321827][   T73]      ipv6_find_idev+0x102/0x170
[  752.321827][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  752.321827][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  752.321827][   T73]      netlink_rcv_skb+0x130/0x360
[  752.321827][   T73]      netlink_unicast+0x449/0x710
[  752.321827][   T73]      netlink_sendmsg+0x723/0xbe0
[  752.321827][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  752.321827][   T73]      ___sys_sendmsg+0xee/0x170
[  752.321827][   T73]      __sys_sendmsg+0xcd/0x170
[  752.321827][   T73]      do_syscall_64+0xc6/0x1e0
[  752.321827][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  752.321827][   T73] 
[  752.323388][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  752.323388][   T73]      neigh_parms_alloc+0x1e5/0x510
[  752.323388][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  752.323388][   T73]      ipv6_find_idev+0x102/0x170
[  752.323388][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  752.323388][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  752.323388][   T73]      netlink_rcv_skb+0x130/0x360
[  752.323388][   T73]      netlink_unicast+0x449/0x710
[  752.323388][   T73]      netlink_sendmsg+0x723/0xbe0
[  752.323388][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  752.323388][   T73]      ___sys_sendmsg+0xee/0x170
[  752.323388][   T73]      __sys_sendmsg+0xcd/0x170
[  752.323388][   T73]      do_syscall_64+0xc6/0x1e0
[  752.323388][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  752.323388][   T73] 
[  752.325084][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  752.325361][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  752.325361][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  752.325361][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  752.325361][   T73]      fib6_nh_init+0xa22/0x1580
[  752.325361][   T73]      ip6_route_info_create+0xf18/0x17d0
[  752.325361][   T73]      ip6_route_add+0x1c/0x140
[  752.325361][   T73]      inet6_rtm_newroute+0x104/0x110
[  752.325361][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  752.325361][   T73]      netlink_rcv_skb+0x130/0x360
[  752.325361][   T73]      netlink_unicast+0x449/0x710
[  752.325361][   T73]      netlink_sendmsg+0x723/0xbe0
[  752.325361][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  752.325361][   T73]      ___sys_sendmsg+0xee/0x170
[  752.325361][   T73]      __sys_sendmsg+0xcd/0x170
[  752.325361][   T73]      do_syscall_64+0xc6/0x1e0
[  752.325361][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  752.325361][   T73] 
[  752.327450][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  752.327450][   T73]      dst_init+0x84/0x4a0
[  752.327450][   T73]      dst_alloc+0x97/0x150
[  752.327450][   T73]      ip6_dst_alloc+0x23/0x90
[  752.327450][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  752.327450][   T73]      ip6_pol_route+0x56f/0x840
[  752.327450][   T73]      fib6_rule_lookup+0x456/0x630
[  752.327450][   T73]      ip6_route_input+0x59c/0xa50
[  752.327450][   T73]      ipv6_rcv+0x397/0x810
[  752.327450][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  752.327450][   T73]      process_backlog+0x101/0x620
[  752.327450][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  752.327450][   T73]      net_rx_action+0x495/0xbe0
[  752.327450][   T73]      __do_softirq+0x1b5/0x7f6
[  752.327450][   T73] 
[  752.329321][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  752.329321][   T73]      netdev_get_by_index+0x5e/0x80
[  752.329321][   T73]      fib6_nh_init+0x3d8/0x1580
[  752.329321][   T73]      ip6_route_info_create+0xf18/0x17d0
[  752.329321][   T73]      ip6_route_add+0x1c/0x140
[  752.329321][   T73]      addrconf_prefix_route+0x2a6/0x430
[  752.329321][   T73]      inet6_addr_add+0x4f8/0xa40
[  752.329321][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  752.329321][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  752.329321][   T73]      netlink_rcv_skb+0x130/0x360
[  752.329321][   T73]      netlink_unicast+0x449/0x710
[  752.329321][   T73]      netlink_sendmsg+0x723/0xbe0
[  752.329321][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  752.329321][   T73]      ___sys_sendmsg+0xee/0x170
[  752.329321][   T73]      __sys_sendmsg+0xcd/0x170
[  752.329321][   T73]      do_syscall_64+0xc6/0x1e0
[  752.329321][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  752.329321][   T73] 
[  752.331513][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  752.331513][   T73]      netdev_get_by_index+0x5e/0x80
[  752.331513][   T73]      fib6_nh_init+0x3d8/0x1580
[  752.331513][   T73]      ip6_route_info_create+0xf18/0x17d0
[  752.331513][   T73]      addrconf_f6i_alloc+0x315/0x560
[  752.331513][   T73]      ipv6_add_addr+0x411/0x2000
[  752.331513][   T73]      inet6_addr_add+0x30e/0xa40
[  752.331513][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  752.331513][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  752.331513][   T73]      netlink_rcv_skb+0x130/0x360
[  752.331513][   T73]      netlink_unicast+0x449/0x710
[  752.331513][   T73]      netlink_sendmsg+0x723/0xbe0
[  752.331513][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  752.331513][   T73]      ___sys_sendmsg+0xee/0x170
[  752.331513][   T73]      __sys_sendmsg+0xcd/0x170
[  752.331513][   T73]      do_syscall_64+0xc6/0x1e0
[  752.331513][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  752.331513][   T73] 
[  752.333799][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  752.333799][   T73]      netdev_get_by_index+0x5e/0x80
[  752.333799][   T73]      fib6_nh_init+0x3d8/0x1580
[  752.333799][   T73]      ip6_route_info_create+0xf18/0x17d0
[  752.333799][   T73]      ip6_route_add+0x1c/0x140
[  752.333799][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  752.333799][   T73]      addrconf_add_dev+0xe2/0x170
[  752.333799][   T73]      inet6_addr_add+0x12f/0xa40
[  752.333799][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  752.333799][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  752.333799][   T73]      netlink_rcv_skb+0x130/0x360
[  752.333799][   T73]      netlink_unicast+0x449/0x710
[  752.333799][   T73]      netlink_sendmsg+0x723/0xbe0
[  752.333799][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  752.333799][   T73]      ___sys_sendmsg+0xee/0x170
[  752.333799][   T73]      __sys_sendmsg+0xcd/0x170
[  752.333799][   T73]      do_syscall_64+0xc6/0x1e0
[  752.333799][   T73] 
[  752.336039][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  752.336039][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  752.336039][   T73]      ipv6_find_idev+0x102/0x170
[  752.336039][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  752.336039][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  752.336039][   T73]      netlink_rcv_skb+0x130/0x360
[  752.336039][   T73]      netlink_unicast+0x449/0x710
[  752.336039][   T73]      netlink_sendmsg+0x723/0xbe0
[  752.336039][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  752.336039][   T73]      ___sys_sendmsg+0xee/0x170
[  752.336039][   T73]      __sys_sendmsg+0xcd/0x170
[  752.336039][   T73]      do_syscall_64+0xc6/0x1e0
[  752.336039][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  752.336039][   T73] 
[  752.337727][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  752.337727][   T73]      neigh_parms_alloc+0x1e5/0x510
[  752.337727][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  752.337727][   T73]      ipv6_find_idev+0x102/0x170
[  752.337727][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  752.337727][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  752.337727][   T73]      netlink_rcv_skb+0x130/0x360
[  752.337727][   T73]      netlink_unicast+0x449/0x710
[  752.337727][   T73]      netlink_sendmsg+0x723/0xbe0
[  752.337727][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  752.337727][   T73]      ___sys_sendmsg+0xee/0x170
[  752.337727][   T73]      __sys_sendmsg+0xcd/0x170
[  752.337727][   T73]      do_syscall_64+0xc6/0x1e0
[  752.337727][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  752.337727][   T73] 
[  752.339620][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  752.340417][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  752.340417][   T73]      netdev_get_by_index+0x5e/0x80
[  752.340417][   T73]      fib6_nh_init+0x3d8/0x1580
[  752.340417][   T73]      ip6_route_info_create+0xf18/0x17d0
[  752.340417][   T73]      addrconf_f6i_alloc+0x265/0x560
[  752.340417][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  752.340417][   T73]      addrconf_join_anycast+0x1c0/0x220
[  752.340417][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  752.340417][   T73]      addrconf_dad_completed+0x12b/0xe20
[  752.340417][   T73]      addrconf_dad_begin+0x310/0x670
[  752.340417][   T73]      addrconf_dad_work+0x10b/0xab0
[  752.340417][   T73]      process_one_work+0x84d/0x18a0
[  752.340417][   T73]      worker_thread+0x587/0xd30
[  752.340417][   T73]      kthread+0x28a/0x350
[  752.340417][   T73]      ret_from_fork+0x31/0x70
[  752.340417][   T73]      ret_from_fork_asm+0x1a/0x30
[  752.340417][   T73] 
[  752.342365][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  752.342365][   T73]      netdev_get_by_index+0x5e/0x80
[  752.342365][   T73]      fib6_nh_init+0x3d8/0x1580
[  752.342365][   T73]      ip6_route_info_create+0xf18/0x17d0
[  752.342365][   T73]      ip6_route_add+0x1c/0x140
[  752.342365][   T73]      addrconf_prefix_route+0x2a6/0x430
[  752.342365][   T73]      inet6_addr_add+0x4f8/0xa40
[  752.342365][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  752.342365][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  752.342365][   T73]      netlink_rcv_skb+0x130/0x360
[  752.342365][   T73]      netlink_unicast+0x449/0x710
[  752.342365][   T73]      netlink_sendmsg+0x723/0xbe0
[  752.342365][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  752.342365][   T73]      ___sys_sendmsg+0xee/0x170
[  752.342365][   T73]      __sys_sendmsg+0xcd/0x170
[  752.342365][   T73]      do_syscall_64+0xc6/0x1e0
[  752.342365][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  752.342365][   T73] 
[  752.344508][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  752.344508][   T73]      netdev_get_by_index+0x5e/0x80
[  752.344508][   T73]      fib6_nh_init+0x3d8/0x1580
[  752.344508][   T73]      ip6_route_info_create+0xf18/0x17d0
[  752.344508][   T73]      addrconf_f6i_alloc+0x315/0x560
[  752.344508][   T73]      ipv6_add_addr+0x411/0x2000
[  752.344508][   T73]      inet6_addr_add+0x30e/0xa40
[  752.344508][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  752.344508][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  752.344508][   T73]      netlink_rcv_skb+0x130/0x360
[  752.344508][   T73]      netlink_unicast+0x449/0x710
[  752.344508][   T73]      netlink_sendmsg+0x723/0xbe0
[  752.344508][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  752.344508][   T73]      ___sys_sendmsg+0xee/0x170
[  752.344508][   T73]      __sys_sendmsg+0xcd/0x170
[  752.344508][   T73]      do_syscall_64+0xc6/0x1e0
[  752.344508][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  752.344508][   T73] 
[  752.346786][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  752.346786][   T73]      netdev_get_by_index+0x5e/0x80
[  752.346786][   T73]      fib6_nh_init+0x3d8/0x1580
[  752.346786][   T73]      ip6_route_info_create+0xf18/0x17d0
[  752.346786][   T73]      ip6_route_add+0x1c/0x140
[  752.346786][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  752.346786][   T73]      addrconf_add_dev+0xe2/0x170
[  752.346786][   T73]      inet6_addr_add+0x12f/0xa40
[  752.346786][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  752.346786][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  752.346786][   T73]      netlink_rcv_skb+0x130/0x360
[  752.346786][   T73]      netlink_unicast+0x449/0x710
[  752.346786][   T73]      netlink_sendmsg+0x723/0xbe0
[  752.346786][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  752.346786][   T73]      ___sys_sendmsg+0xee/0x170
[  752.346786][   T73]      __sys_sendmsg+0xcd/0x170
[  752.346786][   T73]      do_syscall_64+0xc6/0x1e0
[  752.346786][   T73] 
[  752.349086][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  752.349086][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  752.349086][   T73]      ipv6_find_idev+0x102/0x170
[  752.349086][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  752.349086][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  752.349086][   T73]      netlink_rcv_skb+0x130/0x360
[  752.349086][   T73]      netlink_unicast+0x449/0x710
[  752.349086][   T73]      netlink_sendmsg+0x723/0xbe0
[  752.349086][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  752.349086][   T73]      ___sys_sendmsg+0xee/0x170
[  752.349086][   T73]      __sys_sendmsg+0xcd/0x170
[  752.349086][   T73]      do_syscall_64+0xc6/0x1e0
[  752.349086][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  752.349086][   T73] 
[  752.350840][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  752.350840][   T73]      neigh_parms_alloc+0x1e5/0x510
[  752.350840][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  752.350840][   T73]      ipv6_find_idev+0x102/0x170
[  752.350840][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  752.350840][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  752.350840][   T73]      netlink_rcv_skb+0x130/0x360
[  752.350840][   T73]      netlink_unicast+0x449/0x710
[  752.350840][   T73]      netlink_sendmsg+0x723/0xbe0
[  752.350840][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  752.350840][   T73]      ___sys_sendmsg+0xee/0x170
[  752.350840][   T73]      __sys_sendmsg+0xcd/0x170
[  752.350840][   T73]      do_syscall_64+0xc6/0x1e0
[  752.350840][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  752.350840][   T73] 
[  762.591740][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  762.592164][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  762.592164][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  762.592164][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  762.592164][   T73]      fib6_nh_init+0xa22/0x1580
[  762.592164][   T73]      ip6_route_info_create+0xf18/0x17d0
[  762.592164][   T73]      ip6_route_add+0x1c/0x140
[  762.592164][   T73]      inet6_rtm_newroute+0x104/0x110
[  762.592164][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  762.592164][   T73]      netlink_rcv_skb+0x130/0x360
[  762.592164][   T73]      netlink_unicast+0x449/0x710
[  762.592164][   T73]      netlink_sendmsg+0x723/0xbe0
[  762.592164][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  762.592164][   T73]      ___sys_sendmsg+0xee/0x170
[  762.592164][   T73]      __sys_sendmsg+0xcd/0x170
[  762.592164][   T73]      do_syscall_64+0xc6/0x1e0
[  762.592164][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  762.592164][   T73] 
[  762.594233][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  762.594233][   T73]      dst_init+0x84/0x4a0
[  762.594233][   T73]      dst_alloc+0x97/0x150
[  762.594233][   T73]      ip6_dst_alloc+0x23/0x90
[  762.594233][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  762.594233][   T73]      ip6_pol_route+0x56f/0x840
[  762.594233][   T73]      fib6_rule_lookup+0x456/0x630
[  762.594233][   T73]      ip6_route_input+0x59c/0xa50
[  762.594233][   T73]      ipv6_rcv+0x397/0x810
[  762.594233][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  762.594233][   T73]      process_backlog+0x101/0x620
[  762.594233][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  762.594233][   T73]      net_rx_action+0x495/0xbe0
[  762.594233][   T73]      __do_softirq+0x1b5/0x7f6
[  762.594233][   T73] 
[  762.596024][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  762.596024][   T73]      netdev_get_by_index+0x5e/0x80
[  762.596024][   T73]      fib6_nh_init+0x3d8/0x1580
[  762.596024][   T73]      ip6_route_info_create+0xf18/0x17d0
[  762.596024][   T73]      ip6_route_add+0x1c/0x140
[  762.596024][   T73]      addrconf_prefix_route+0x2a6/0x430
[  762.596024][   T73]      inet6_addr_add+0x4f8/0xa40
[  762.596024][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  762.596024][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  762.596024][   T73]      netlink_rcv_skb+0x130/0x360
[  762.596024][   T73]      netlink_unicast+0x449/0x710
[  762.596024][   T73]      netlink_sendmsg+0x723/0xbe0
[  762.596024][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  762.596024][   T73]      ___sys_sendmsg+0xee/0x170
[  762.596024][   T73]      __sys_sendmsg+0xcd/0x170
[  762.596024][   T73]      do_syscall_64+0xc6/0x1e0
[  762.596024][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  762.596024][   T73] 
[  762.598186][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  762.598186][   T73]      netdev_get_by_index+0x5e/0x80
[  762.598186][   T73]      fib6_nh_init+0x3d8/0x1580
[  762.598186][   T73]      ip6_route_info_create+0xf18/0x17d0
[  762.598186][   T73]      addrconf_f6i_alloc+0x315/0x560
[  762.598186][   T73]      ipv6_add_addr+0x411/0x2000
[  762.598186][   T73]      inet6_addr_add+0x30e/0xa40
[  762.598186][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  762.598186][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  762.598186][   T73]      netlink_rcv_skb+0x130/0x360
[  762.598186][   T73]      netlink_unicast+0x449/0x710
[  762.598186][   T73]      netlink_sendmsg+0x723/0xbe0
[  762.598186][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  762.598186][   T73]      ___sys_sendmsg+0xee/0x170
[  762.598186][   T73]      __sys_sendmsg+0xcd/0x170
[  762.598186][   T73]      do_syscall_64+0xc6/0x1e0
[  762.598186][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  762.598186][   T73] 
[  762.600346][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  762.600346][   T73]      netdev_get_by_index+0x5e/0x80
[  762.600346][   T73]      fib6_nh_init+0x3d8/0x1580
[  762.600346][   T73]      ip6_route_info_create+0xf18/0x17d0
[  762.600346][   T73]      ip6_route_add+0x1c/0x140
[  762.600346][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  762.600346][   T73]      addrconf_add_dev+0xe2/0x170
[  762.600346][   T73]      inet6_addr_add+0x12f/0xa40
[  762.600346][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  762.600346][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  762.600346][   T73]      netlink_rcv_skb+0x130/0x360
[  762.600346][   T73]      netlink_unicast+0x449/0x710
[  762.600346][   T73]      netlink_sendmsg+0x723/0xbe0
[  762.600346][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  762.600346][   T73]      ___sys_sendmsg+0xee/0x170
[  762.600346][   T73]      __sys_sendmsg+0xcd/0x170
[  762.600346][   T73]      do_syscall_64+0xc6/0x1e0
[  762.600346][   T73] 
[  762.602481][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  762.602481][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  762.602481][   T73]      ipv6_find_idev+0x102/0x170
[  762.602481][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  762.602481][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  762.602481][   T73]      netlink_rcv_skb+0x130/0x360
[  762.602481][   T73]      netlink_unicast+0x449/0x710
[  762.602481][   T73]      netlink_sendmsg+0x723/0xbe0
[  762.602481][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  762.602481][   T73]      ___sys_sendmsg+0xee/0x170
[  762.602481][   T73]      __sys_sendmsg+0xcd/0x170
[  762.602481][   T73]      do_syscall_64+0xc6/0x1e0
[  762.602481][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  762.602481][   T73] 
[  762.604175][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  762.604175][   T73]      neigh_parms_alloc+0x1e5/0x510
[  762.604175][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  762.604175][   T73]      ipv6_find_idev+0x102/0x170
[  762.604175][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  762.604175][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  762.604175][   T73]      netlink_rcv_skb+0x130/0x360
[  762.604175][   T73]      netlink_unicast+0x449/0x710
[  762.604175][   T73]      netlink_sendmsg+0x723/0xbe0
[  762.604175][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  762.604175][   T73]      ___sys_sendmsg+0xee/0x170
[  762.604175][   T73]      __sys_sendmsg+0xcd/0x170
[  762.604175][   T73]      do_syscall_64+0xc6/0x1e0
[  762.604175][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  762.604175][   T73] 
[  762.606026][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  762.606317][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  762.606317][   T73]      netdev_get_by_index+0x5e/0x80
[  762.606317][   T73]      fib6_nh_init+0x3d8/0x1580
[  762.606317][   T73]      ip6_route_info_create+0xf18/0x17d0
[  762.606317][   T73]      addrconf_f6i_alloc+0x265/0x560
[  762.606317][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  762.606317][   T73]      addrconf_join_anycast+0x1c0/0x220
[  762.606317][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  762.606317][   T73]      addrconf_dad_completed+0x12b/0xe20
[  762.606317][   T73]      addrconf_dad_begin+0x310/0x670
[  762.606317][   T73]      addrconf_dad_work+0x10b/0xab0
[  762.606317][   T73]      process_one_work+0x84d/0x18a0
[  762.606317][   T73]      worker_thread+0x587/0xd30
[  762.606317][   T73]      kthread+0x28a/0x350
[  762.606317][   T73]      ret_from_fork+0x31/0x70
[  762.606317][   T73]      ret_from_fork_asm+0x1a/0x30
[  762.606317][   T73] 
[  762.608412][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  762.608412][   T73]      netdev_get_by_index+0x5e/0x80
[  762.608412][   T73]      fib6_nh_init+0x3d8/0x1580
[  762.608412][   T73]      ip6_route_info_create+0xf18/0x17d0
[  762.608412][   T73]      ip6_route_add+0x1c/0x140
[  762.608412][   T73]      addrconf_prefix_route+0x2a6/0x430
[  762.608412][   T73]      inet6_addr_add+0x4f8/0xa40
[  762.608412][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  762.608412][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  762.608412][   T73]      netlink_rcv_skb+0x130/0x360
[  762.608412][   T73]      netlink_unicast+0x449/0x710
[  762.608412][   T73]      netlink_sendmsg+0x723/0xbe0
[  762.608412][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  762.608412][   T73]      ___sys_sendmsg+0xee/0x170
[  762.608412][   T73]      __sys_sendmsg+0xcd/0x170
[  762.608412][   T73]      do_syscall_64+0xc6/0x1e0
[  762.608412][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  762.608412][   T73] 
[  762.610596][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  762.610596][   T73]      netdev_get_by_index+0x5e/0x80
[  762.610596][   T73]      fib6_nh_init+0x3d8/0x1580
[  762.610596][   T73]      ip6_route_info_create+0xf18/0x17d0
[  762.610596][   T73]      addrconf_f6i_alloc+0x315/0x560
[  762.610596][   T73]      ipv6_add_addr+0x411/0x2000
[  762.610596][   T73]      inet6_addr_add+0x30e/0xa40
[  762.610596][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  762.610596][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  762.610596][   T73]      netlink_rcv_skb+0x130/0x360
[  762.610596][   T73]      netlink_unicast+0x449/0x710
[  762.610596][   T73]      netlink_sendmsg+0x723/0xbe0
[  762.610596][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  762.610596][   T73]      ___sys_sendmsg+0xee/0x170
[  762.610596][   T73]      __sys_sendmsg+0xcd/0x170
[  762.610596][   T73]      do_syscall_64+0xc6/0x1e0
[  762.610596][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  762.610596][   T73] 
[  762.612781][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  762.612781][   T73]      netdev_get_by_index+0x5e/0x80
[  762.612781][   T73]      fib6_nh_init+0x3d8/0x1580
[  762.612781][   T73]      ip6_route_info_create+0xf18/0x17d0
[  762.612781][   T73]      ip6_route_add+0x1c/0x140
[  762.612781][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  762.612781][   T73]      addrconf_add_dev+0xe2/0x170
[  762.612781][   T73]      inet6_addr_add+0x12f/0xa40
[  762.612781][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  762.612781][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  762.612781][   T73]      netlink_rcv_skb+0x130/0x360
[  762.612781][   T73]      netlink_unicast+0x449/0x710
[  762.612781][   T73]      netlink_sendmsg+0x723/0xbe0
[  762.612781][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  762.612781][   T73]      ___sys_sendmsg+0xee/0x170
[  762.612781][   T73]      __sys_sendmsg+0xcd/0x170
[  762.612781][   T73]      do_syscall_64+0xc6/0x1e0
[  762.612781][   T73] 
[  762.614930][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  762.614930][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  762.614930][   T73]      ipv6_find_idev+0x102/0x170
[  762.614930][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  762.614930][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  762.614930][   T73]      netlink_rcv_skb+0x130/0x360
[  762.614930][   T73]      netlink_unicast+0x449/0x710
[  762.614930][   T73]      netlink_sendmsg+0x723/0xbe0
[  762.614930][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  762.614930][   T73]      ___sys_sendmsg+0xee/0x170
[  762.614930][   T73]      __sys_sendmsg+0xcd/0x170
[  762.614930][   T73]      do_syscall_64+0xc6/0x1e0
[  762.614930][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  762.614930][   T73] 
[  762.616613][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  762.616613][   T73]      neigh_parms_alloc+0x1e5/0x510
[  762.616613][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  762.616613][   T73]      ipv6_find_idev+0x102/0x170
[  762.616613][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  762.616613][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  762.616613][   T73]      netlink_rcv_skb+0x130/0x360
[  762.616613][   T73]      netlink_unicast+0x449/0x710
[  762.616613][   T73]      netlink_sendmsg+0x723/0xbe0
[  762.616613][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  762.616613][   T73]      ___sys_sendmsg+0xee/0x170
[  762.616613][   T73]      __sys_sendmsg+0xcd/0x170
[  762.616613][   T73]      do_syscall_64+0xc6/0x1e0
[  762.616613][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  762.616613][   T73] 
[  762.618442][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  762.618743][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  762.618743][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  762.618743][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  762.618743][   T73]      fib6_nh_init+0xa22/0x1580
[  762.618743][   T73]      ip6_route_info_create+0xf18/0x17d0
[  762.618743][   T73]      ip6_route_add+0x1c/0x140
[  762.618743][   T73]      inet6_rtm_newroute+0x104/0x110
[  762.618743][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  762.618743][   T73]      netlink_rcv_skb+0x130/0x360
[  762.618743][   T73]      netlink_unicast+0x449/0x710
[  762.618743][   T73]      netlink_sendmsg+0x723/0xbe0
[  762.618743][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  762.618743][   T73]      ___sys_sendmsg+0xee/0x170
[  762.618743][   T73]      __sys_sendmsg+0xcd/0x170
[  762.618743][   T73]      do_syscall_64+0xc6/0x1e0
[  762.618743][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  762.618743][   T73] 
[  762.620957][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  762.620957][   T73]      dst_init+0x84/0x4a0
[  762.620957][   T73]      dst_alloc+0x97/0x150
[  762.620957][   T73]      ip6_dst_alloc+0x23/0x90
[  762.620957][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  762.620957][   T73]      ip6_pol_route+0x56f/0x840
[  762.620957][   T73]      fib6_rule_lookup+0x456/0x630
[  762.620957][   T73]      ip6_route_input+0x59c/0xa50
[  762.620957][   T73]      ipv6_rcv+0x397/0x810
[  762.620957][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  762.620957][   T73]      process_backlog+0x101/0x620
[  762.620957][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  762.620957][   T73]      net_rx_action+0x495/0xbe0
[  762.620957][   T73]      __do_softirq+0x1b5/0x7f6
[  762.620957][   T73] 
[  762.622897][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  762.622897][   T73]      netdev_get_by_index+0x5e/0x80
[  762.622897][   T73]      fib6_nh_init+0x3d8/0x1580
[  762.622897][   T73]      ip6_route_info_create+0xf18/0x17d0
[  762.622897][   T73]      ip6_route_add+0x1c/0x140
[  762.622897][   T73]      addrconf_prefix_route+0x2a6/0x430
[  762.622897][   T73]      inet6_addr_add+0x4f8/0xa40
[  762.622897][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  762.622897][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  762.622897][   T73]      netlink_rcv_skb+0x130/0x360
[  762.622897][   T73]      netlink_unicast+0x449/0x710
[  762.622897][   T73]      netlink_sendmsg+0x723/0xbe0
[  762.622897][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  762.622897][   T73]      ___sys_sendmsg+0xee/0x170
[  762.622897][   T73]      __sys_sendmsg+0xcd/0x170
[  762.622897][   T73]      do_syscall_64+0xc6/0x1e0
[  762.622897][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  762.622897][   T73] 
[  762.625237][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  762.625237][   T73]      netdev_get_by_index+0x5e/0x80
[  762.625237][   T73]      fib6_nh_init+0x3d8/0x1580
[  762.625237][   T73]      ip6_route_info_create+0xf18/0x17d0
[  762.625237][   T73]      addrconf_f6i_alloc+0x315/0x560
[  762.625237][   T73]      ipv6_add_addr+0x411/0x2000
[  762.625237][   T73]      inet6_addr_add+0x30e/0xa40
[  762.625237][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  762.625237][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  762.625237][   T73]      netlink_rcv_skb+0x130/0x360
[  762.625237][   T73]      netlink_unicast+0x449/0x710
[  762.625237][   T73]      netlink_sendmsg+0x723/0xbe0
[  762.625237][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  762.625237][   T73]      ___sys_sendmsg+0xee/0x170
[  762.625237][   T73]      __sys_sendmsg+0xcd/0x170
[  762.625237][   T73]      do_syscall_64+0xc6/0x1e0
[  762.625237][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  762.625237][   T73] 
[  762.627735][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  762.627735][   T73]      netdev_get_by_index+0x5e/0x80
[  762.627735][   T73]      fib6_nh_init+0x3d8/0x1580
[  762.627735][   T73]      ip6_route_info_create+0xf18/0x17d0
[  762.627735][   T73]      ip6_route_add+0x1c/0x140
[  762.627735][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  762.627735][   T73]      addrconf_add_dev+0xe2/0x170
[  762.627735][   T73]      inet6_addr_add+0x12f/0xa40
[  762.627735][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  762.627735][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  762.627735][   T73]      netlink_rcv_skb+0x130/0x360
[  762.627735][   T73]      netlink_unicast+0x449/0x710
[  762.627735][   T73]      netlink_sendmsg+0x723/0xbe0
[  762.627735][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  762.627735][   T73]      ___sys_sendmsg+0xee/0x170
[  762.627735][   T73]      __sys_sendmsg+0xcd/0x170
[  762.627735][   T73]      do_syscall_64+0xc6/0x1e0
[  762.627735][   T73] 
[  762.630152][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  762.630152][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  762.630152][   T73]      ipv6_find_idev+0x102/0x170
[  762.630152][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  762.630152][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  762.630152][   T73]      netlink_rcv_skb+0x130/0x360
[  762.630152][   T73]      netlink_unicast+0x449/0x710
[  762.630152][   T73]      netlink_sendmsg+0x723/0xbe0
[  762.630152][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  762.630152][   T73]      ___sys_sendmsg+0xee/0x170
[  762.630152][   T73]      __sys_sendmsg+0xcd/0x170
[  762.630152][   T73]      do_syscall_64+0xc6/0x1e0
[  762.630152][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  762.630152][   T73] 
[  762.632025][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  762.632025][   T73]      neigh_parms_alloc+0x1e5/0x510
[  762.632025][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  762.632025][   T73]      ipv6_find_idev+0x102/0x170
[  762.632025][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  762.632025][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  762.632025][   T73]      netlink_rcv_skb+0x130/0x360
[  762.632025][   T73]      netlink_unicast+0x449/0x710
[  762.632025][   T73]      netlink_sendmsg+0x723/0xbe0
[  762.632025][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  762.632025][   T73]      ___sys_sendmsg+0xee/0x170
[  762.632025][   T73]      __sys_sendmsg+0xcd/0x170
[  762.632025][   T73]      do_syscall_64+0xc6/0x1e0
[  762.632025][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  762.632025][   T73] 
[  762.634040][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  762.634394][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  762.634394][   T73]      netdev_get_by_index+0x5e/0x80
[  762.634394][   T73]      fib6_nh_init+0x3d8/0x1580
[  762.634394][   T73]      ip6_route_info_create+0xf18/0x17d0
[  762.634394][   T73]      addrconf_f6i_alloc+0x265/0x560
[  762.634394][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  762.634394][   T73]      addrconf_join_anycast+0x1c0/0x220
[  762.634394][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  762.634394][   T73]      addrconf_dad_completed+0x12b/0xe20
[  762.634394][   T73]      addrconf_dad_begin+0x310/0x670
[  762.634394][   T73]      addrconf_dad_work+0x10b/0xab0
[  762.634394][   T73]      process_one_work+0x84d/0x18a0
[  762.634394][   T73]      worker_thread+0x587/0xd30
[  762.634394][   T73]      kthread+0x28a/0x350
[  762.634394][   T73]      ret_from_fork+0x31/0x70
[  762.634394][   T73]      ret_from_fork_asm+0x1a/0x30
[  762.634394][   T73] 
[  762.637216][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  762.637216][   T73]      netdev_get_by_index+0x5e/0x80
[  762.637216][   T73]      fib6_nh_init+0x3d8/0x1580
[  762.637216][   T73]      ip6_route_info_create+0xf18/0x17d0
[  762.637216][   T73]      ip6_route_add+0x1c/0x140
[  762.637216][   T73]      addrconf_prefix_route+0x2a6/0x430
[  762.637216][   T73]      inet6_addr_add+0x4f8/0xa40
[  762.637216][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  762.637216][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  762.637216][   T73]      netlink_rcv_skb+0x130/0x360
[  762.637216][   T73]      netlink_unicast+0x449/0x710
[  762.637216][   T73]      netlink_sendmsg+0x723/0xbe0
[  762.637216][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  762.637216][   T73]      ___sys_sendmsg+0xee/0x170
[  762.637216][   T73]      __sys_sendmsg+0xcd/0x170
[  762.637216][   T73]      do_syscall_64+0xc6/0x1e0
[  762.637216][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  762.637216][   T73] 
[  762.639664][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  762.639664][   T73]      netdev_get_by_index+0x5e/0x80
[  762.639664][   T73]      fib6_nh_init+0x3d8/0x1580
[  762.639664][   T73]      ip6_route_info_create+0xf18/0x17d0
[  762.639664][   T73]      addrconf_f6i_alloc+0x315/0x560
[  762.639664][   T73]      ipv6_add_addr+0x411/0x2000
[  762.639664][   T73]      inet6_addr_add+0x30e/0xa40
[  762.639664][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  762.639664][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  762.639664][   T73]      netlink_rcv_skb+0x130/0x360
[  762.639664][   T73]      netlink_unicast+0x449/0x710
[  762.639664][   T73]      netlink_sendmsg+0x723/0xbe0
[  762.639664][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  762.639664][   T73]      ___sys_sendmsg+0xee/0x170
[  762.639664][   T73]      __sys_sendmsg+0xcd/0x170
[  762.639664][   T73]      do_syscall_64+0xc6/0x1e0
[  762.639664][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  762.639664][   T73] 
[  762.642105][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  762.642105][   T73]      netdev_get_by_index+0x5e/0x80
[  762.642105][   T73]      fib6_nh_init+0x3d8/0x1580
[  762.642105][   T73]      ip6_route_info_create+0xf18/0x17d0
[  762.642105][   T73]      ip6_route_add+0x1c/0x140
[  762.642105][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  762.642105][   T73]      addrconf_add_dev+0xe2/0x170
[  762.642105][   T73]      inet6_addr_add+0x12f/0xa40
[  762.642105][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  762.642105][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  762.642105][   T73]      netlink_rcv_skb+0x130/0x360
[  762.642105][   T73]      netlink_unicast+0x449/0x710
[  762.642105][   T73]      netlink_sendmsg+0x723/0xbe0
[  762.642105][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  762.642105][   T73]      ___sys_sendmsg+0xee/0x170
[  762.642105][   T73]      __sys_sendmsg+0xcd/0x170
[  762.642105][   T73]      do_syscall_64+0xc6/0x1e0
[  762.642105][   T73] 
[  762.644481][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  762.644481][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  762.644481][   T73]      ipv6_find_idev+0x102/0x170
[  762.644481][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  762.644481][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  762.644481][   T73]      netlink_rcv_skb+0x130/0x360
[  762.644481][   T73]      netlink_unicast+0x449/0x710
[  762.644481][   T73]      netlink_sendmsg+0x723/0xbe0
[  762.644481][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  762.644481][   T73]      ___sys_sendmsg+0xee/0x170
[  762.644481][   T73]      __sys_sendmsg+0xcd/0x170
[  762.644481][   T73]      do_syscall_64+0xc6/0x1e0
[  762.644481][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  762.644481][   T73] 
[  762.646336][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  762.646336][   T73]      neigh_parms_alloc+0x1e5/0x510
[  762.646336][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  762.646336][   T73]      ipv6_find_idev+0x102/0x170
[  762.646336][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  762.646336][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  762.646336][   T73]      netlink_rcv_skb+0x130/0x360
[  762.646336][   T73]      netlink_unicast+0x449/0x710
[  762.646336][   T73]      netlink_sendmsg+0x723/0xbe0
[  762.646336][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  762.646336][   T73]      ___sys_sendmsg+0xee/0x170
[  762.646336][   T73]      __sys_sendmsg+0xcd/0x170
[  762.646336][   T73]      do_syscall_64+0xc6/0x1e0
[  762.646336][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  762.646336][   T73] 
[  772.887771][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  772.888202][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  772.888202][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  772.888202][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  772.888202][   T73]      fib6_nh_init+0xa22/0x1580
[  772.888202][   T73]      ip6_route_info_create+0xf18/0x17d0
[  772.888202][   T73]      ip6_route_add+0x1c/0x140
[  772.888202][   T73]      inet6_rtm_newroute+0x104/0x110
[  772.888202][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  772.888202][   T73]      netlink_rcv_skb+0x130/0x360
[  772.888202][   T73]      netlink_unicast+0x449/0x710
[  772.888202][   T73]      netlink_sendmsg+0x723/0xbe0
[  772.888202][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  772.888202][   T73]      ___sys_sendmsg+0xee/0x170
[  772.888202][   T73]      __sys_sendmsg+0xcd/0x170
[  772.888202][   T73]      do_syscall_64+0xc6/0x1e0
[  772.888202][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  772.888202][   T73] 
[  772.890250][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  772.890250][   T73]      dst_init+0x84/0x4a0
[  772.890250][   T73]      dst_alloc+0x97/0x150
[  772.890250][   T73]      ip6_dst_alloc+0x23/0x90
[  772.890250][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  772.890250][   T73]      ip6_pol_route+0x56f/0x840
[  772.890250][   T73]      fib6_rule_lookup+0x456/0x630
[  772.890250][   T73]      ip6_route_input+0x59c/0xa50
[  772.890250][   T73]      ipv6_rcv+0x397/0x810
[  772.890250][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  772.890250][   T73]      process_backlog+0x101/0x620
[  772.890250][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  772.890250][   T73]      net_rx_action+0x495/0xbe0
[  772.890250][   T73]      __do_softirq+0x1b5/0x7f6
[  772.890250][   T73] 
[  772.892021][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  772.892021][   T73]      netdev_get_by_index+0x5e/0x80
[  772.892021][   T73]      fib6_nh_init+0x3d8/0x1580
[  772.892021][   T73]      ip6_route_info_create+0xf18/0x17d0
[  772.892021][   T73]      ip6_route_add+0x1c/0x140
[  772.892021][   T73]      addrconf_prefix_route+0x2a6/0x430
[  772.892021][   T73]      inet6_addr_add+0x4f8/0xa40
[  772.892021][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  772.892021][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  772.892021][   T73]      netlink_rcv_skb+0x130/0x360
[  772.892021][   T73]      netlink_unicast+0x449/0x710
[  772.892021][   T73]      netlink_sendmsg+0x723/0xbe0
[  772.892021][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  772.892021][   T73]      ___sys_sendmsg+0xee/0x170
[  772.892021][   T73]      __sys_sendmsg+0xcd/0x170
[  772.892021][   T73]      do_syscall_64+0xc6/0x1e0
[  772.892021][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  772.892021][   T73] 
[  772.894219][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  772.894219][   T73]      netdev_get_by_index+0x5e/0x80
[  772.894219][   T73]      fib6_nh_init+0x3d8/0x1580
[  772.894219][   T73]      ip6_route_info_create+0xf18/0x17d0
[  772.894219][   T73]      addrconf_f6i_alloc+0x315/0x560
[  772.894219][   T73]      ipv6_add_addr+0x411/0x2000
[  772.894219][   T73]      inet6_addr_add+0x30e/0xa40
[  772.894219][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  772.894219][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  772.894219][   T73]      netlink_rcv_skb+0x130/0x360
[  772.894219][   T73]      netlink_unicast+0x449/0x710
[  772.894219][   T73]      netlink_sendmsg+0x723/0xbe0
[  772.894219][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  772.894219][   T73]      ___sys_sendmsg+0xee/0x170
[  772.894219][   T73]      __sys_sendmsg+0xcd/0x170
[  772.894219][   T73]      do_syscall_64+0xc6/0x1e0
[  772.894219][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  772.894219][   T73] 
[  772.896823][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  772.896823][   T73]      netdev_get_by_index+0x5e/0x80
[  772.896823][   T73]      fib6_nh_init+0x3d8/0x1580
[  772.896823][   T73]      ip6_route_info_create+0xf18/0x17d0
[  772.896823][   T73]      ip6_route_add+0x1c/0x140
[  772.896823][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  772.896823][   T73]      addrconf_add_dev+0xe2/0x170
[  772.896823][   T73]      inet6_addr_add+0x12f/0xa40
[  772.896823][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  772.896823][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  772.896823][   T73]      netlink_rcv_skb+0x130/0x360
[  772.896823][   T73]      netlink_unicast+0x449/0x710
[  772.896823][   T73]      netlink_sendmsg+0x723/0xbe0
[  772.896823][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  772.896823][   T73]      ___sys_sendmsg+0xee/0x170
[  772.896823][   T73]      __sys_sendmsg+0xcd/0x170
[  772.896823][   T73]      do_syscall_64+0xc6/0x1e0
[  772.896823][   T73] 
[  772.898985][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  772.898985][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  772.898985][   T73]      ipv6_find_idev+0x102/0x170
[  772.898985][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  772.898985][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  772.898985][   T73]      netlink_rcv_skb+0x130/0x360
[  772.898985][   T73]      netlink_unicast+0x449/0x710
[  772.898985][   T73]      netlink_sendmsg+0x723/0xbe0
[  772.898985][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  772.898985][   T73]      ___sys_sendmsg+0xee/0x170
[  772.898985][   T73]      __sys_sendmsg+0xcd/0x170
[  772.898985][   T73]      do_syscall_64+0xc6/0x1e0
[  772.898985][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  772.898985][   T73] 
[  772.900662][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  772.900662][   T73]      neigh_parms_alloc+0x1e5/0x510
[  772.900662][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  772.900662][   T73]      ipv6_find_idev+0x102/0x170
[  772.900662][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  772.900662][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  772.900662][   T73]      netlink_rcv_skb+0x130/0x360
[  772.900662][   T73]      netlink_unicast+0x449/0x710
[  772.900662][   T73]      netlink_sendmsg+0x723/0xbe0
[  772.900662][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  772.900662][   T73]      ___sys_sendmsg+0xee/0x170
[  772.900662][   T73]      __sys_sendmsg+0xcd/0x170
[  772.900662][   T73]      do_syscall_64+0xc6/0x1e0
[  772.900662][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  772.900662][   T73] 
[  772.902518][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  772.902825][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  772.902825][   T73]      netdev_get_by_index+0x5e/0x80
[  772.902825][   T73]      fib6_nh_init+0x3d8/0x1580
[  772.902825][   T73]      ip6_route_info_create+0xf18/0x17d0
[  772.902825][   T73]      addrconf_f6i_alloc+0x265/0x560
[  772.902825][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  772.902825][   T73]      addrconf_join_anycast+0x1c0/0x220
[  772.902825][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  772.902825][   T73]      addrconf_dad_completed+0x12b/0xe20
[  772.902825][   T73]      addrconf_dad_begin+0x310/0x670
[  772.902825][   T73]      addrconf_dad_work+0x10b/0xab0
[  772.902825][   T73]      process_one_work+0x84d/0x18a0
[  772.902825][   T73]      worker_thread+0x587/0xd30
[  772.902825][   T73]      kthread+0x28a/0x350
[  772.902825][   T73]      ret_from_fork+0x31/0x70
[  772.902825][   T73]      ret_from_fork_asm+0x1a/0x30
[  772.902825][   T73] 
[  772.904915][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  772.904915][   T73]      netdev_get_by_index+0x5e/0x80
[  772.904915][   T73]      fib6_nh_init+0x3d8/0x1580
[  772.904915][   T73]      ip6_route_info_create+0xf18/0x17d0
[  772.904915][   T73]      ip6_route_add+0x1c/0x140
[  772.904915][   T73]      addrconf_prefix_route+0x2a6/0x430
[  772.904915][   T73]      inet6_addr_add+0x4f8/0xa40
[  772.904915][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  772.904915][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  772.904915][   T73]      netlink_rcv_skb+0x130/0x360
[  772.904915][   T73]      netlink_unicast+0x449/0x710
[  772.904915][   T73]      netlink_sendmsg+0x723/0xbe0
[  772.904915][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  772.904915][   T73]      ___sys_sendmsg+0xee/0x170
[  772.904915][   T73]      __sys_sendmsg+0xcd/0x170
[  772.904915][   T73]      do_syscall_64+0xc6/0x1e0
[  772.904915][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  772.904915][   T73] 
[  772.907117][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  772.907117][   T73]      netdev_get_by_index+0x5e/0x80
[  772.907117][   T73]      fib6_nh_init+0x3d8/0x1580
[  772.907117][   T73]      ip6_route_info_create+0xf18/0x17d0
[  772.907117][   T73]      addrconf_f6i_alloc+0x315/0x560
[  772.907117][   T73]      ipv6_add_addr+0x411/0x2000
[  772.907117][   T73]      inet6_addr_add+0x30e/0xa40
[  772.907117][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  772.907117][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  772.907117][   T73]      netlink_rcv_skb+0x130/0x360
[  772.907117][   T73]      netlink_unicast+0x449/0x710
[  772.907117][   T73]      netlink_sendmsg+0x723/0xbe0
[  772.907117][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  772.907117][   T73]      ___sys_sendmsg+0xee/0x170
[  772.907117][   T73]      __sys_sendmsg+0xcd/0x170
[  772.907117][   T73]      do_syscall_64+0xc6/0x1e0
[  772.907117][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  772.907117][   T73] 
[  772.909296][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  772.909296][   T73]      netdev_get_by_index+0x5e/0x80
[  772.909296][   T73]      fib6_nh_init+0x3d8/0x1580
[  772.909296][   T73]      ip6_route_info_create+0xf18/0x17d0
[  772.909296][   T73]      ip6_route_add+0x1c/0x140
[  772.909296][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  772.909296][   T73]      addrconf_add_dev+0xe2/0x170
[  772.909296][   T73]      inet6_addr_add+0x12f/0xa40
[  772.909296][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  772.909296][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  772.909296][   T73]      netlink_rcv_skb+0x130/0x360
[  772.909296][   T73]      netlink_unicast+0x449/0x710
[  772.909296][   T73]      netlink_sendmsg+0x723/0xbe0
[  772.909296][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  772.909296][   T73]      ___sys_sendmsg+0xee/0x170
[  772.909296][   T73]      __sys_sendmsg+0xcd/0x170
[  772.909296][   T73]      do_syscall_64+0xc6/0x1e0
[  772.909296][   T73] 
[  772.911444][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  772.911444][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  772.911444][   T73]      ipv6_find_idev+0x102/0x170
[  772.911444][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  772.911444][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  772.911444][   T73]      netlink_rcv_skb+0x130/0x360
[  772.911444][   T73]      netlink_unicast+0x449/0x710
[  772.911444][   T73]      netlink_sendmsg+0x723/0xbe0
[  772.911444][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  772.911444][   T73]      ___sys_sendmsg+0xee/0x170
[  772.911444][   T73]      __sys_sendmsg+0xcd/0x170
[  772.911444][   T73]      do_syscall_64+0xc6/0x1e0
[  772.911444][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  772.911444][   T73] 
[  772.913133][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  772.913133][   T73]      neigh_parms_alloc+0x1e5/0x510
[  772.913133][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  772.913133][   T73]      ipv6_find_idev+0x102/0x170
[  772.913133][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  772.913133][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  772.913133][   T73]      netlink_rcv_skb+0x130/0x360
[  772.913133][   T73]      netlink_unicast+0x449/0x710
[  772.913133][   T73]      netlink_sendmsg+0x723/0xbe0
[  772.913133][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  772.913133][   T73]      ___sys_sendmsg+0xee/0x170
[  772.913133][   T73]      __sys_sendmsg+0xcd/0x170
[  772.913133][   T73]      do_syscall_64+0xc6/0x1e0
[  772.913133][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  772.913133][   T73] 
[  772.914967][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  772.915251][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  772.915251][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  772.915251][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  772.915251][   T73]      fib6_nh_init+0xa22/0x1580
[  772.915251][   T73]      ip6_route_info_create+0xf18/0x17d0
[  772.915251][   T73]      ip6_route_add+0x1c/0x140
[  772.915251][   T73]      inet6_rtm_newroute+0x104/0x110
[  772.915251][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  772.915251][   T73]      netlink_rcv_skb+0x130/0x360
[  772.915251][   T73]      netlink_unicast+0x449/0x710
[  772.915251][   T73]      netlink_sendmsg+0x723/0xbe0
[  772.915251][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  772.915251][   T73]      ___sys_sendmsg+0xee/0x170
[  772.915251][   T73]      __sys_sendmsg+0xcd/0x170
[  772.915251][   T73]      do_syscall_64+0xc6/0x1e0
[  772.915251][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  772.915251][   T73] 
[  772.917469][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  772.917469][   T73]      dst_init+0x84/0x4a0
[  772.917469][   T73]      dst_alloc+0x97/0x150
[  772.917469][   T73]      ip6_dst_alloc+0x23/0x90
[  772.917469][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  772.917469][   T73]      ip6_pol_route+0x56f/0x840
[  772.917469][   T73]      fib6_rule_lookup+0x456/0x630
[  772.917469][   T73]      ip6_route_input+0x59c/0xa50
[  772.917469][   T73]      ipv6_rcv+0x397/0x810
[  772.917469][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  772.917469][   T73]      process_backlog+0x101/0x620
[  772.917469][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  772.917469][   T73]      net_rx_action+0x495/0xbe0
[  772.917469][   T73]      __do_softirq+0x1b5/0x7f6
[  772.917469][   T73] 
[  772.919476][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  772.919476][   T73]      netdev_get_by_index+0x5e/0x80
[  772.919476][   T73]      fib6_nh_init+0x3d8/0x1580
[  772.919476][   T73]      ip6_route_info_create+0xf18/0x17d0
[  772.919476][   T73]      ip6_route_add+0x1c/0x140
[  772.919476][   T73]      addrconf_prefix_route+0x2a6/0x430
[  772.919476][   T73]      inet6_addr_add+0x4f8/0xa40
[  772.919476][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  772.919476][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  772.919476][   T73]      netlink_rcv_skb+0x130/0x360
[  772.919476][   T73]      netlink_unicast+0x449/0x710
[  772.919476][   T73]      netlink_sendmsg+0x723/0xbe0
[  772.919476][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  772.919476][   T73]      ___sys_sendmsg+0xee/0x170
[  772.919476][   T73]      __sys_sendmsg+0xcd/0x170
[  772.919476][   T73]      do_syscall_64+0xc6/0x1e0
[  772.919476][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  772.919476][   T73] 
[  772.921785][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  772.921785][   T73]      netdev_get_by_index+0x5e/0x80
[  772.921785][   T73]      fib6_nh_init+0x3d8/0x1580
[  772.921785][   T73]      ip6_route_info_create+0xf18/0x17d0
[  772.921785][   T73]      addrconf_f6i_alloc+0x315/0x560
[  772.921785][   T73]      ipv6_add_addr+0x411/0x2000
[  772.921785][   T73]      inet6_addr_add+0x30e/0xa40
[  772.921785][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  772.921785][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  772.921785][   T73]      netlink_rcv_skb+0x130/0x360
[  772.921785][   T73]      netlink_unicast+0x449/0x710
[  772.921785][   T73]      netlink_sendmsg+0x723/0xbe0
[  772.921785][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  772.921785][   T73]      ___sys_sendmsg+0xee/0x170
[  772.921785][   T73]      __sys_sendmsg+0xcd/0x170
[  772.921785][   T73]      do_syscall_64+0xc6/0x1e0
[  772.921785][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  772.921785][   T73] 
[  772.924454][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  772.924454][   T73]      netdev_get_by_index+0x5e/0x80
[  772.924454][   T73]      fib6_nh_init+0x3d8/0x1580
[  772.924454][   T73]      ip6_route_info_create+0xf18/0x17d0
[  772.924454][   T73]      ip6_route_add+0x1c/0x140
[  772.924454][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  772.924454][   T73]      addrconf_add_dev+0xe2/0x170
[  772.924454][   T73]      inet6_addr_add+0x12f/0xa40
[  772.924454][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  772.924454][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  772.924454][   T73]      netlink_rcv_skb+0x130/0x360
[  772.924454][   T73]      netlink_unicast+0x449/0x710
[  772.924454][   T73]      netlink_sendmsg+0x723/0xbe0
[  772.924454][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  772.924454][   T73]      ___sys_sendmsg+0xee/0x170
[  772.924454][   T73]      __sys_sendmsg+0xcd/0x170
[  772.924454][   T73]      do_syscall_64+0xc6/0x1e0
[  772.924454][   T73] 
[  772.926744][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  772.926744][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  772.926744][   T73]      ipv6_find_idev+0x102/0x170
[  772.926744][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  772.926744][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  772.926744][   T73]      netlink_rcv_skb+0x130/0x360
[  772.926744][   T73]      netlink_unicast+0x449/0x710
[  772.926744][   T73]      netlink_sendmsg+0x723/0xbe0
[  772.926744][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  772.926744][   T73]      ___sys_sendmsg+0xee/0x170
[  772.926744][   T73]      __sys_sendmsg+0xcd/0x170
[  772.926744][   T73]      do_syscall_64+0xc6/0x1e0
[  772.926744][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  772.926744][   T73] 
[  772.928567][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  772.928567][   T73]      neigh_parms_alloc+0x1e5/0x510
[  772.928567][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  772.928567][   T73]      ipv6_find_idev+0x102/0x170
[  772.928567][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  772.928567][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  772.928567][   T73]      netlink_rcv_skb+0x130/0x360
[  772.928567][   T73]      netlink_unicast+0x449/0x710
[  772.928567][   T73]      netlink_sendmsg+0x723/0xbe0
[  772.928567][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  772.928567][   T73]      ___sys_sendmsg+0xee/0x170
[  772.928567][   T73]      __sys_sendmsg+0xcd/0x170
[  772.928567][   T73]      do_syscall_64+0xc6/0x1e0
[  772.928567][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  772.928567][   T73] 
[  772.930894][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  772.931190][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  772.931190][   T73]      netdev_get_by_index+0x5e/0x80
[  772.931190][   T73]      fib6_nh_init+0x3d8/0x1580
[  772.931190][   T73]      ip6_route_info_create+0xf18/0x17d0
[  772.931190][   T73]      addrconf_f6i_alloc+0x265/0x560
[  772.931190][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  772.931190][   T73]      addrconf_join_anycast+0x1c0/0x220
[  772.931190][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  772.931190][   T73]      addrconf_dad_completed+0x12b/0xe20
[  772.931190][   T73]      addrconf_dad_begin+0x310/0x670
[  772.931190][   T73]      addrconf_dad_work+0x10b/0xab0
[  772.931190][   T73]      process_one_work+0x84d/0x18a0
[  772.931190][   T73]      worker_thread+0x587/0xd30
[  772.931190][   T73]      kthread+0x28a/0x350
[  772.931190][   T73]      ret_from_fork+0x31/0x70
[  772.931190][   T73]      ret_from_fork_asm+0x1a/0x30
[  772.931190][   T73] 
[  772.933287][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  772.933287][   T73]      netdev_get_by_index+0x5e/0x80
[  772.933287][   T73]      fib6_nh_init+0x3d8/0x1580
[  772.933287][   T73]      ip6_route_info_create+0xf18/0x17d0
[  772.933287][   T73]      ip6_route_add+0x1c/0x140
[  772.933287][   T73]      addrconf_prefix_route+0x2a6/0x430
[  772.933287][   T73]      inet6_addr_add+0x4f8/0xa40
[  772.933287][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  772.933287][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  772.933287][   T73]      netlink_rcv_skb+0x130/0x360
[  772.933287][   T73]      netlink_unicast+0x449/0x710
[  772.933287][   T73]      netlink_sendmsg+0x723/0xbe0
[  772.933287][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  772.933287][   T73]      ___sys_sendmsg+0xee/0x170
[  772.933287][   T73]      __sys_sendmsg+0xcd/0x170
[  772.933287][   T73]      do_syscall_64+0xc6/0x1e0
[  772.933287][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  772.933287][   T73] 
[  772.935538][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  772.935538][   T73]      netdev_get_by_index+0x5e/0x80
[  772.935538][   T73]      fib6_nh_init+0x3d8/0x1580
[  772.935538][   T73]      ip6_route_info_create+0xf18/0x17d0
[  772.935538][   T73]      addrconf_f6i_alloc+0x315/0x560
[  772.935538][   T73]      ipv6_add_addr+0x411/0x2000
[  772.935538][   T73]      inet6_addr_add+0x30e/0xa40
[  772.935538][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  772.935538][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  772.935538][   T73]      netlink_rcv_skb+0x130/0x360
[  772.935538][   T73]      netlink_unicast+0x449/0x710
[  772.935538][   T73]      netlink_sendmsg+0x723/0xbe0
[  772.935538][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  772.935538][   T73]      ___sys_sendmsg+0xee/0x170
[  772.935538][   T73]      __sys_sendmsg+0xcd/0x170
[  772.935538][   T73]      do_syscall_64+0xc6/0x1e0
[  772.935538][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  772.935538][   T73] 
[  772.937855][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  772.937855][   T73]      netdev_get_by_index+0x5e/0x80
[  772.937855][   T73]      fib6_nh_init+0x3d8/0x1580
[  772.937855][   T73]      ip6_route_info_create+0xf18/0x17d0
[  772.937855][   T73]      ip6_route_add+0x1c/0x140
[  772.937855][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  772.937855][   T73]      addrconf_add_dev+0xe2/0x170
[  772.937855][   T73]      inet6_addr_add+0x12f/0xa40
[  772.937855][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  772.937855][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  772.937855][   T73]      netlink_rcv_skb+0x130/0x360
[  772.937855][   T73]      netlink_unicast+0x449/0x710
[  772.937855][   T73]      netlink_sendmsg+0x723/0xbe0
[  772.937855][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  772.937855][   T73]      ___sys_sendmsg+0xee/0x170
[  772.937855][   T73]      __sys_sendmsg+0xcd/0x170
[  772.937855][   T73]      do_syscall_64+0xc6/0x1e0
[  772.937855][   T73] 
[  772.940117][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  772.940117][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  772.940117][   T73]      ipv6_find_idev+0x102/0x170
[  772.940117][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  772.940117][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  772.940117][   T73]      netlink_rcv_skb+0x130/0x360
[  772.940117][   T73]      netlink_unicast+0x449/0x710
[  772.940117][   T73]      netlink_sendmsg+0x723/0xbe0
[  772.940117][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  772.940117][   T73]      ___sys_sendmsg+0xee/0x170
[  772.940117][   T73]      __sys_sendmsg+0xcd/0x170
[  772.940117][   T73]      do_syscall_64+0xc6/0x1e0
[  772.940117][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  772.940117][   T73] 
[  772.941905][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  772.941905][   T73]      neigh_parms_alloc+0x1e5/0x510
[  772.941905][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  772.941905][   T73]      ipv6_find_idev+0x102/0x170
[  772.941905][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  772.941905][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  772.941905][   T73]      netlink_rcv_skb+0x130/0x360
[  772.941905][   T73]      netlink_unicast+0x449/0x710
[  772.941905][   T73]      netlink_sendmsg+0x723/0xbe0
[  772.941905][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  772.941905][   T73]      ___sys_sendmsg+0xee/0x170
[  772.941905][   T73]      __sys_sendmsg+0xcd/0x170
[  772.941905][   T73]      do_syscall_64+0xc6/0x1e0
[  772.941905][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  772.941905][   T73] 
[  783.151744][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  783.152130][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  783.152130][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  783.152130][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  783.152130][   T73]      fib6_nh_init+0xa22/0x1580
[  783.152130][   T73]      ip6_route_info_create+0xf18/0x17d0
[  783.152130][   T73]      ip6_route_add+0x1c/0x140
[  783.152130][   T73]      inet6_rtm_newroute+0x104/0x110
[  783.152130][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  783.152130][   T73]      netlink_rcv_skb+0x130/0x360
[  783.152130][   T73]      netlink_unicast+0x449/0x710
[  783.152130][   T73]      netlink_sendmsg+0x723/0xbe0
[  783.152130][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  783.152130][   T73]      ___sys_sendmsg+0xee/0x170
[  783.152130][   T73]      __sys_sendmsg+0xcd/0x170
[  783.152130][   T73]      do_syscall_64+0xc6/0x1e0
[  783.152130][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  783.152130][   T73] 
[  783.154120][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  783.154120][   T73]      dst_init+0x84/0x4a0
[  783.154120][   T73]      dst_alloc+0x97/0x150
[  783.154120][   T73]      ip6_dst_alloc+0x23/0x90
[  783.154120][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  783.154120][   T73]      ip6_pol_route+0x56f/0x840
[  783.154120][   T73]      fib6_rule_lookup+0x456/0x630
[  783.154120][   T73]      ip6_route_input+0x59c/0xa50
[  783.154120][   T73]      ipv6_rcv+0x397/0x810
[  783.154120][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  783.154120][   T73]      process_backlog+0x101/0x620
[  783.154120][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  783.154120][   T73]      net_rx_action+0x495/0xbe0
[  783.154120][   T73]      __do_softirq+0x1b5/0x7f6
[  783.154120][   T73] 
[  783.155753][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  783.155753][   T73]      netdev_get_by_index+0x5e/0x80
[  783.155753][   T73]      fib6_nh_init+0x3d8/0x1580
[  783.155753][   T73]      ip6_route_info_create+0xf18/0x17d0
[  783.155753][   T73]      ip6_route_add+0x1c/0x140
[  783.155753][   T73]      addrconf_prefix_route+0x2a6/0x430
[  783.155753][   T73]      inet6_addr_add+0x4f8/0xa40
[  783.155753][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  783.155753][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  783.155753][   T73]      netlink_rcv_skb+0x130/0x360
[  783.155753][   T73]      netlink_unicast+0x449/0x710
[  783.155753][   T73]      netlink_sendmsg+0x723/0xbe0
[  783.155753][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  783.155753][   T73]      ___sys_sendmsg+0xee/0x170
[  783.155753][   T73]      __sys_sendmsg+0xcd/0x170
[  783.155753][   T73]      do_syscall_64+0xc6/0x1e0
[  783.155753][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  783.155753][   T73] 
[  783.157740][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  783.157740][   T73]      netdev_get_by_index+0x5e/0x80
[  783.157740][   T73]      fib6_nh_init+0x3d8/0x1580
[  783.157740][   T73]      ip6_route_info_create+0xf18/0x17d0
[  783.157740][   T73]      addrconf_f6i_alloc+0x315/0x560
[  783.157740][   T73]      ipv6_add_addr+0x411/0x2000
[  783.157740][   T73]      inet6_addr_add+0x30e/0xa40
[  783.157740][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  783.157740][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  783.157740][   T73]      netlink_rcv_skb+0x130/0x360
[  783.157740][   T73]      netlink_unicast+0x449/0x710
[  783.157740][   T73]      netlink_sendmsg+0x723/0xbe0
[  783.157740][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  783.157740][   T73]      ___sys_sendmsg+0xee/0x170
[  783.157740][   T73]      __sys_sendmsg+0xcd/0x170
[  783.157740][   T73]      do_syscall_64+0xc6/0x1e0
[  783.157740][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  783.157740][   T73] 
[  783.159729][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  783.159729][   T73]      netdev_get_by_index+0x5e/0x80
[  783.159729][   T73]      fib6_nh_init+0x3d8/0x1580
[  783.159729][   T73]      ip6_route_info_create+0xf18/0x17d0
[  783.159729][   T73]      ip6_route_add+0x1c/0x140
[  783.159729][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  783.159729][   T73]      addrconf_add_dev+0xe2/0x170
[  783.159729][   T73]      inet6_addr_add+0x12f/0xa40
[  783.159729][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  783.159729][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  783.159729][   T73]      netlink_rcv_skb+0x130/0x360
[  783.159729][   T73]      netlink_unicast+0x449/0x710
[  783.159729][   T73]      netlink_sendmsg+0x723/0xbe0
[  783.159729][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  783.159729][   T73]      ___sys_sendmsg+0xee/0x170
[  783.159729][   T73]      __sys_sendmsg+0xcd/0x170
[  783.159729][   T73]      do_syscall_64+0xc6/0x1e0
[  783.159729][   T73] 
[  783.161712][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  783.161712][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  783.161712][   T73]      ipv6_find_idev+0x102/0x170
[  783.161712][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  783.161712][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  783.161712][   T73]      netlink_rcv_skb+0x130/0x360
[  783.161712][   T73]      netlink_unicast+0x449/0x710
[  783.161712][   T73]      netlink_sendmsg+0x723/0xbe0
[  783.161712][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  783.161712][   T73]      ___sys_sendmsg+0xee/0x170
[  783.161712][   T73]      __sys_sendmsg+0xcd/0x170
[  783.161712][   T73]      do_syscall_64+0xc6/0x1e0
[  783.161712][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  783.161712][   T73] 
[  783.163249][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  783.163249][   T73]      neigh_parms_alloc+0x1e5/0x510
[  783.163249][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  783.163249][   T73]      ipv6_find_idev+0x102/0x170
[  783.163249][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  783.163249][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  783.163249][   T73]      netlink_rcv_skb+0x130/0x360
[  783.163249][   T73]      netlink_unicast+0x449/0x710
[  783.163249][   T73]      netlink_sendmsg+0x723/0xbe0
[  783.163249][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  783.163249][   T73]      ___sys_sendmsg+0xee/0x170
[  783.163249][   T73]      __sys_sendmsg+0xcd/0x170
[  783.163249][   T73]      do_syscall_64+0xc6/0x1e0
[  783.163249][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  783.163249][   T73] 
[  783.164938][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  783.165218][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  783.165218][   T73]      netdev_get_by_index+0x5e/0x80
[  783.165218][   T73]      fib6_nh_init+0x3d8/0x1580
[  783.165218][   T73]      ip6_route_info_create+0xf18/0x17d0
[  783.165218][   T73]      addrconf_f6i_alloc+0x265/0x560
[  783.165218][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  783.165218][   T73]      addrconf_join_anycast+0x1c0/0x220
[  783.165218][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  783.165218][   T73]      addrconf_dad_completed+0x12b/0xe20
[  783.165218][   T73]      addrconf_dad_begin+0x310/0x670
[  783.165218][   T73]      addrconf_dad_work+0x10b/0xab0
[  783.165218][   T73]      process_one_work+0x84d/0x18a0
[  783.165218][   T73]      worker_thread+0x587/0xd30
[  783.165218][   T73]      kthread+0x28a/0x350
[  783.165218][   T73]      ret_from_fork+0x31/0x70
[  783.165218][   T73]      ret_from_fork_asm+0x1a/0x30
[  783.165218][   T73] 
[  783.167132][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  783.167132][   T73]      netdev_get_by_index+0x5e/0x80
[  783.167132][   T73]      fib6_nh_init+0x3d8/0x1580
[  783.167132][   T73]      ip6_route_info_create+0xf18/0x17d0
[  783.167132][   T73]      ip6_route_add+0x1c/0x140
[  783.167132][   T73]      addrconf_prefix_route+0x2a6/0x430
[  783.167132][   T73]      inet6_addr_add+0x4f8/0xa40
[  783.167132][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  783.167132][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  783.167132][   T73]      netlink_rcv_skb+0x130/0x360
[  783.167132][   T73]      netlink_unicast+0x449/0x710
[  783.167132][   T73]      netlink_sendmsg+0x723/0xbe0
[  783.167132][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  783.167132][   T73]      ___sys_sendmsg+0xee/0x170
[  783.167132][   T73]      __sys_sendmsg+0xcd/0x170
[  783.167132][   T73]      do_syscall_64+0xc6/0x1e0
[  783.167132][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  783.167132][   T73] 
[  783.169130][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  783.169130][   T73]      netdev_get_by_index+0x5e/0x80
[  783.169130][   T73]      fib6_nh_init+0x3d8/0x1580
[  783.169130][   T73]      ip6_route_info_create+0xf18/0x17d0
[  783.169130][   T73]      addrconf_f6i_alloc+0x315/0x560
[  783.169130][   T73]      ipv6_add_addr+0x411/0x2000
[  783.169130][   T73]      inet6_addr_add+0x30e/0xa40
[  783.169130][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  783.169130][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  783.169130][   T73]      netlink_rcv_skb+0x130/0x360
[  783.169130][   T73]      netlink_unicast+0x449/0x710
[  783.169130][   T73]      netlink_sendmsg+0x723/0xbe0
[  783.169130][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  783.169130][   T73]      ___sys_sendmsg+0xee/0x170
[  783.169130][   T73]      __sys_sendmsg+0xcd/0x170
[  783.169130][   T73]      do_syscall_64+0xc6/0x1e0
[  783.169130][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  783.169130][   T73] 
[  783.171135][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  783.171135][   T73]      netdev_get_by_index+0x5e/0x80
[  783.171135][   T73]      fib6_nh_init+0x3d8/0x1580
[  783.171135][   T73]      ip6_route_info_create+0xf18/0x17d0
[  783.171135][   T73]      ip6_route_add+0x1c/0x140
[  783.171135][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  783.171135][   T73]      addrconf_add_dev+0xe2/0x170
[  783.171135][   T73]      inet6_addr_add+0x12f/0xa40
[  783.171135][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  783.171135][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  783.171135][   T73]      netlink_rcv_skb+0x130/0x360
[  783.171135][   T73]      netlink_unicast+0x449/0x710
[  783.171135][   T73]      netlink_sendmsg+0x723/0xbe0
[  783.171135][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  783.171135][   T73]      ___sys_sendmsg+0xee/0x170
[  783.171135][   T73]      __sys_sendmsg+0xcd/0x170
[  783.171135][   T73]      do_syscall_64+0xc6/0x1e0
[  783.171135][   T73] 
[  783.173091][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  783.173091][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  783.173091][   T73]      ipv6_find_idev+0x102/0x170
[  783.173091][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  783.173091][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  783.173091][   T73]      netlink_rcv_skb+0x130/0x360
[  783.173091][   T73]      netlink_unicast+0x449/0x710
[  783.173091][   T73]      netlink_sendmsg+0x723/0xbe0
[  783.173091][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  783.173091][   T73]      ___sys_sendmsg+0xee/0x170
[  783.173091][   T73]      __sys_sendmsg+0xcd/0x170
[  783.173091][   T73]      do_syscall_64+0xc6/0x1e0
[  783.173091][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  783.173091][   T73] 
[  783.174749][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  783.174749][   T73]      neigh_parms_alloc+0x1e5/0x510
[  783.174749][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  783.174749][   T73]      ipv6_find_idev+0x102/0x170
[  783.174749][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  783.174749][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  783.174749][   T73]      netlink_rcv_skb+0x130/0x360
[  783.174749][   T73]      netlink_unicast+0x449/0x710
[  783.174749][   T73]      netlink_sendmsg+0x723/0xbe0
[  783.174749][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  783.174749][   T73]      ___sys_sendmsg+0xee/0x170
[  783.174749][   T73]      __sys_sendmsg+0xcd/0x170
[  783.174749][   T73]      do_syscall_64+0xc6/0x1e0
[  783.174749][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  783.174749][   T73] 
[  783.176598][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  783.176900][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  783.176900][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  783.176900][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  783.176900][   T73]      fib6_nh_init+0xa22/0x1580
[  783.176900][   T73]      ip6_route_info_create+0xf18/0x17d0
[  783.176900][   T73]      ip6_route_add+0x1c/0x140
[  783.176900][   T73]      inet6_rtm_newroute+0x104/0x110
[  783.176900][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  783.176900][   T73]      netlink_rcv_skb+0x130/0x360
[  783.176900][   T73]      netlink_unicast+0x449/0x710
[  783.176900][   T73]      netlink_sendmsg+0x723/0xbe0
[  783.176900][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  783.176900][   T73]      ___sys_sendmsg+0xee/0x170
[  783.176900][   T73]      __sys_sendmsg+0xcd/0x170
[  783.176900][   T73]      do_syscall_64+0xc6/0x1e0
[  783.176900][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  783.176900][   T73] 
[  783.179153][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  783.179153][   T73]      dst_init+0x84/0x4a0
[  783.179153][   T73]      dst_alloc+0x97/0x150
[  783.179153][   T73]      ip6_dst_alloc+0x23/0x90
[  783.179153][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  783.179153][   T73]      ip6_pol_route+0x56f/0x840
[  783.179153][   T73]      fib6_rule_lookup+0x456/0x630
[  783.179153][   T73]      ip6_route_input+0x59c/0xa50
[  783.179153][   T73]      ipv6_rcv+0x397/0x810
[  783.179153][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  783.179153][   T73]      process_backlog+0x101/0x620
[  783.179153][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  783.179153][   T73]      net_rx_action+0x495/0xbe0
[  783.179153][   T73]      __do_softirq+0x1b5/0x7f6
[  783.179153][   T73] 
[  783.181137][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  783.181137][   T73]      netdev_get_by_index+0x5e/0x80
[  783.181137][   T73]      fib6_nh_init+0x3d8/0x1580
[  783.181137][   T73]      ip6_route_info_create+0xf18/0x17d0
[  783.181137][   T73]      ip6_route_add+0x1c/0x140
[  783.181137][   T73]      addrconf_prefix_route+0x2a6/0x430
[  783.181137][   T73]      inet6_addr_add+0x4f8/0xa40
[  783.181137][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  783.181137][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  783.181137][   T73]      netlink_rcv_skb+0x130/0x360
[  783.181137][   T73]      netlink_unicast+0x449/0x710
[  783.181137][   T73]      netlink_sendmsg+0x723/0xbe0
[  783.181137][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  783.181137][   T73]      ___sys_sendmsg+0xee/0x170
[  783.181137][   T73]      __sys_sendmsg+0xcd/0x170
[  783.181137][   T73]      do_syscall_64+0xc6/0x1e0
[  783.181137][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  783.181137][   T73] 
[  783.183581][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  783.183581][   T73]      netdev_get_by_index+0x5e/0x80
[  783.183581][   T73]      fib6_nh_init+0x3d8/0x1580
[  783.183581][   T73]      ip6_route_info_create+0xf18/0x17d0
[  783.183581][   T73]      addrconf_f6i_alloc+0x315/0x560
[  783.183581][   T73]      ipv6_add_addr+0x411/0x2000
[  783.183581][   T73]      inet6_addr_add+0x30e/0xa40
[  783.183581][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  783.183581][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  783.183581][   T73]      netlink_rcv_skb+0x130/0x360
[  783.183581][   T73]      netlink_unicast+0x449/0x710
[  783.183581][   T73]      netlink_sendmsg+0x723/0xbe0
[  783.183581][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  783.183581][   T73]      ___sys_sendmsg+0xee/0x170
[  783.183581][   T73]      __sys_sendmsg+0xcd/0x170
[  783.183581][   T73]      do_syscall_64+0xc6/0x1e0
[  783.183581][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  783.183581][   T73] 
[  783.185965][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  783.185965][   T73]      netdev_get_by_index+0x5e/0x80
[  783.185965][   T73]      fib6_nh_init+0x3d8/0x1580
[  783.185965][   T73]      ip6_route_info_create+0xf18/0x17d0
[  783.185965][   T73]      ip6_route_add+0x1c/0x140
[  783.185965][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  783.185965][   T73]      addrconf_add_dev+0xe2/0x170
[  783.185965][   T73]      inet6_addr_add+0x12f/0xa40
[  783.185965][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  783.185965][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  783.185965][   T73]      netlink_rcv_skb+0x130/0x360
[  783.185965][   T73]      netlink_unicast+0x449/0x710
[  783.185965][   T73]      netlink_sendmsg+0x723/0xbe0
[  783.185965][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  783.185965][   T73]      ___sys_sendmsg+0xee/0x170
[  783.185965][   T73]      __sys_sendmsg+0xcd/0x170
[  783.185965][   T73]      do_syscall_64+0xc6/0x1e0
[  783.185965][   T73] 
[  783.188365][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  783.188365][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  783.188365][   T73]      ipv6_find_idev+0x102/0x170
[  783.188365][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  783.188365][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  783.188365][   T73]      netlink_rcv_skb+0x130/0x360
[  783.188365][   T73]      netlink_unicast+0x449/0x710
[  783.188365][   T73]      netlink_sendmsg+0x723/0xbe0
[  783.188365][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  783.188365][   T73]      ___sys_sendmsg+0xee/0x170
[  783.188365][   T73]      __sys_sendmsg+0xcd/0x170
[  783.188365][   T73]      do_syscall_64+0xc6/0x1e0
[  783.188365][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  783.188365][   T73] 
[  783.190252][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  783.190252][   T73]      neigh_parms_alloc+0x1e5/0x510
[  783.190252][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  783.190252][   T73]      ipv6_find_idev+0x102/0x170
[  783.190252][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  783.190252][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  783.190252][   T73]      netlink_rcv_skb+0x130/0x360
[  783.190252][   T73]      netlink_unicast+0x449/0x710
[  783.190252][   T73]      netlink_sendmsg+0x723/0xbe0
[  783.190252][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  783.190252][   T73]      ___sys_sendmsg+0xee/0x170
[  783.190252][   T73]      __sys_sendmsg+0xcd/0x170
[  783.190252][   T73]      do_syscall_64+0xc6/0x1e0
[  783.190252][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  783.190252][   T73] 
[  783.192358][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  783.192653][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  783.192653][   T73]      netdev_get_by_index+0x5e/0x80
[  783.192653][   T73]      fib6_nh_init+0x3d8/0x1580
[  783.192653][   T73]      ip6_route_info_create+0xf18/0x17d0
[  783.192653][   T73]      addrconf_f6i_alloc+0x265/0x560
[  783.192653][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  783.192653][   T73]      addrconf_join_anycast+0x1c0/0x220
[  783.192653][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  783.192653][   T73]      addrconf_dad_completed+0x12b/0xe20
[  783.192653][   T73]      addrconf_dad_begin+0x310/0x670
[  783.192653][   T73]      addrconf_dad_work+0x10b/0xab0
[  783.192653][   T73]      process_one_work+0x84d/0x18a0
[  783.192653][   T73]      worker_thread+0x587/0xd30
[  783.192653][   T73]      kthread+0x28a/0x350
[  783.192653][   T73]      ret_from_fork+0x31/0x70
[  783.192653][   T73]      ret_from_fork_asm+0x1a/0x30
[  783.192653][   T73] 
[  783.195004][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  783.195004][   T73]      netdev_get_by_index+0x5e/0x80
[  783.195004][   T73]      fib6_nh_init+0x3d8/0x1580
[  783.195004][   T73]      ip6_route_info_create+0xf18/0x17d0
[  783.195004][   T73]      ip6_route_add+0x1c/0x140
[  783.195004][   T73]      addrconf_prefix_route+0x2a6/0x430
[  783.195004][   T73]      inet6_addr_add+0x4f8/0xa40
[  783.195004][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  783.195004][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  783.195004][   T73]      netlink_rcv_skb+0x130/0x360
[  783.195004][   T73]      netlink_unicast+0x449/0x710
[  783.195004][   T73]      netlink_sendmsg+0x723/0xbe0
[  783.195004][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  783.195004][   T73]      ___sys_sendmsg+0xee/0x170
[  783.195004][   T73]      __sys_sendmsg+0xcd/0x170
[  783.195004][   T73]      do_syscall_64+0xc6/0x1e0
[  783.195004][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  783.195004][   T73] 
[  783.197502][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  783.197502][   T73]      netdev_get_by_index+0x5e/0x80
[  783.197502][   T73]      fib6_nh_init+0x3d8/0x1580
[  783.197502][   T73]      ip6_route_info_create+0xf18/0x17d0
[  783.197502][   T73]      addrconf_f6i_alloc+0x315/0x560
[  783.197502][   T73]      ipv6_add_addr+0x411/0x2000
[  783.197502][   T73]      inet6_addr_add+0x30e/0xa40
[  783.197502][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  783.197502][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  783.197502][   T73]      netlink_rcv_skb+0x130/0x360
[  783.197502][   T73]      netlink_unicast+0x449/0x710
[  783.197502][   T73]      netlink_sendmsg+0x723/0xbe0
[  783.197502][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  783.197502][   T73]      ___sys_sendmsg+0xee/0x170
[  783.197502][   T73]      __sys_sendmsg+0xcd/0x170
[  783.197502][   T73]      do_syscall_64+0xc6/0x1e0
[  783.197502][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  783.197502][   T73] 
[  783.199897][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  783.199897][   T73]      netdev_get_by_index+0x5e/0x80
[  783.199897][   T73]      fib6_nh_init+0x3d8/0x1580
[  783.199897][   T73]      ip6_route_info_create+0xf18/0x17d0
[  783.199897][   T73]      ip6_route_add+0x1c/0x140
[  783.199897][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  783.199897][   T73]      addrconf_add_dev+0xe2/0x170
[  783.199897][   T73]      inet6_addr_add+0x12f/0xa40
[  783.199897][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  783.199897][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  783.199897][   T73]      netlink_rcv_skb+0x130/0x360
[  783.199897][   T73]      netlink_unicast+0x449/0x710
[  783.199897][   T73]      netlink_sendmsg+0x723/0xbe0
[  783.199897][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  783.199897][   T73]      ___sys_sendmsg+0xee/0x170
[  783.199897][   T73]      __sys_sendmsg+0xcd/0x170
[  783.199897][   T73]      do_syscall_64+0xc6/0x1e0
[  783.199897][   T73] 
[  783.202306][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  783.202306][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  783.202306][   T73]      ipv6_find_idev+0x102/0x170
[  783.202306][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  783.202306][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  783.202306][   T73]      netlink_rcv_skb+0x130/0x360
[  783.202306][   T73]      netlink_unicast+0x449/0x710
[  783.202306][   T73]      netlink_sendmsg+0x723/0xbe0
[  783.202306][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  783.202306][   T73]      ___sys_sendmsg+0xee/0x170
[  783.202306][   T73]      __sys_sendmsg+0xcd/0x170
[  783.202306][   T73]      do_syscall_64+0xc6/0x1e0
[  783.202306][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  783.202306][   T73] 
[  783.204186][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  783.204186][   T73]      neigh_parms_alloc+0x1e5/0x510
[  783.204186][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  783.204186][   T73]      ipv6_find_idev+0x102/0x170
[  783.204186][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  783.204186][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  783.204186][   T73]      netlink_rcv_skb+0x130/0x360
[  783.204186][   T73]      netlink_unicast+0x449/0x710
[  783.204186][   T73]      netlink_sendmsg+0x723/0xbe0
[  783.204186][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  783.204186][   T73]      ___sys_sendmsg+0xee/0x170
[  783.204186][   T73]      __sys_sendmsg+0xcd/0x170
[  783.204186][   T73]      do_syscall_64+0xc6/0x1e0
[  783.204186][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  783.204186][   T73] 
[  793.263738][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  793.264219][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  793.264219][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  793.264219][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  793.264219][   T73]      fib6_nh_init+0xa22/0x1580
[  793.264219][   T73]      ip6_route_info_create+0xf18/0x17d0
[  793.264219][   T73]      ip6_route_add+0x1c/0x140
[  793.264219][   T73]      inet6_rtm_newroute+0x104/0x110
[  793.264219][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  793.264219][   T73]      netlink_rcv_skb+0x130/0x360
[  793.264219][   T73]      netlink_unicast+0x449/0x710
[  793.264219][   T73]      netlink_sendmsg+0x723/0xbe0
[  793.264219][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  793.264219][   T73]      ___sys_sendmsg+0xee/0x170
[  793.264219][   T73]      __sys_sendmsg+0xcd/0x170
[  793.264219][   T73]      do_syscall_64+0xc6/0x1e0
[  793.264219][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  793.264219][   T73] 
[  793.266543][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  793.266543][   T73]      dst_init+0x84/0x4a0
[  793.266543][   T73]      dst_alloc+0x97/0x150
[  793.266543][   T73]      ip6_dst_alloc+0x23/0x90
[  793.266543][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  793.266543][   T73]      ip6_pol_route+0x56f/0x840
[  793.266543][   T73]      fib6_rule_lookup+0x456/0x630
[  793.266543][   T73]      ip6_route_input+0x59c/0xa50
[  793.266543][   T73]      ipv6_rcv+0x397/0x810
[  793.266543][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  793.266543][   T73]      process_backlog+0x101/0x620
[  793.266543][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  793.266543][   T73]      net_rx_action+0x495/0xbe0
[  793.266543][   T73]      __do_softirq+0x1b5/0x7f6
[  793.266543][   T73] 
[  793.268554][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  793.268554][   T73]      netdev_get_by_index+0x5e/0x80
[  793.268554][   T73]      fib6_nh_init+0x3d8/0x1580
[  793.268554][   T73]      ip6_route_info_create+0xf18/0x17d0
[  793.268554][   T73]      ip6_route_add+0x1c/0x140
[  793.268554][   T73]      addrconf_prefix_route+0x2a6/0x430
[  793.268554][   T73]      inet6_addr_add+0x4f8/0xa40
[  793.268554][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  793.268554][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  793.268554][   T73]      netlink_rcv_skb+0x130/0x360
[  793.268554][   T73]      netlink_unicast+0x449/0x710
[  793.268554][   T73]      netlink_sendmsg+0x723/0xbe0
[  793.268554][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  793.268554][   T73]      ___sys_sendmsg+0xee/0x170
[  793.268554][   T73]      __sys_sendmsg+0xcd/0x170
[  793.268554][   T73]      do_syscall_64+0xc6/0x1e0
[  793.268554][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  793.268554][   T73] 
[  793.271018][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  793.271018][   T73]      netdev_get_by_index+0x5e/0x80
[  793.271018][   T73]      fib6_nh_init+0x3d8/0x1580
[  793.271018][   T73]      ip6_route_info_create+0xf18/0x17d0
[  793.271018][   T73]      addrconf_f6i_alloc+0x315/0x560
[  793.271018][   T73]      ipv6_add_addr+0x411/0x2000
[  793.271018][   T73]      inet6_addr_add+0x30e/0xa40
[  793.271018][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  793.271018][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  793.271018][   T73]      netlink_rcv_skb+0x130/0x360
[  793.271018][   T73]      netlink_unicast+0x449/0x710
[  793.271018][   T73]      netlink_sendmsg+0x723/0xbe0
[  793.271018][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  793.271018][   T73]      ___sys_sendmsg+0xee/0x170
[  793.271018][   T73]      __sys_sendmsg+0xcd/0x170
[  793.271018][   T73]      do_syscall_64+0xc6/0x1e0
[  793.271018][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  793.271018][   T73] 
[  793.273486][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  793.273486][   T73]      netdev_get_by_index+0x5e/0x80
[  793.273486][   T73]      fib6_nh_init+0x3d8/0x1580
[  793.273486][   T73]      ip6_route_info_create+0xf18/0x17d0
[  793.273486][   T73]      ip6_route_add+0x1c/0x140
[  793.273486][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  793.273486][   T73]      addrconf_add_dev+0xe2/0x170
[  793.273486][   T73]      inet6_addr_add+0x12f/0xa40
[  793.273486][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  793.273486][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  793.273486][   T73]      netlink_rcv_skb+0x130/0x360
[  793.273486][   T73]      netlink_unicast+0x449/0x710
[  793.273486][   T73]      netlink_sendmsg+0x723/0xbe0
[  793.273486][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  793.273486][   T73]      ___sys_sendmsg+0xee/0x170
[  793.273486][   T73]      __sys_sendmsg+0xcd/0x170
[  793.273486][   T73]      do_syscall_64+0xc6/0x1e0
[  793.273486][   T73] 
[  793.275902][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  793.275902][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  793.275902][   T73]      ipv6_find_idev+0x102/0x170
[  793.275902][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  793.275902][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  793.275902][   T73]      netlink_rcv_skb+0x130/0x360
[  793.275902][   T73]      netlink_unicast+0x449/0x710
[  793.275902][   T73]      netlink_sendmsg+0x723/0xbe0
[  793.275902][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  793.275902][   T73]      ___sys_sendmsg+0xee/0x170
[  793.275902][   T73]      __sys_sendmsg+0xcd/0x170
[  793.275902][   T73]      do_syscall_64+0xc6/0x1e0
[  793.275902][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  793.275902][   T73] 
[  793.277793][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  793.277793][   T73]      neigh_parms_alloc+0x1e5/0x510
[  793.277793][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  793.277793][   T73]      ipv6_find_idev+0x102/0x170
[  793.277793][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  793.277793][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  793.277793][   T73]      netlink_rcv_skb+0x130/0x360
[  793.277793][   T73]      netlink_unicast+0x449/0x710
[  793.277793][   T73]      netlink_sendmsg+0x723/0xbe0
[  793.277793][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  793.277793][   T73]      ___sys_sendmsg+0xee/0x170
[  793.277793][   T73]      __sys_sendmsg+0xcd/0x170
[  793.277793][   T73]      do_syscall_64+0xc6/0x1e0
[  793.277793][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  793.277793][   T73] 
[  793.279888][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  793.280230][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  793.280230][   T73]      netdev_get_by_index+0x5e/0x80
[  793.280230][   T73]      fib6_nh_init+0x3d8/0x1580
[  793.280230][   T73]      ip6_route_info_create+0xf18/0x17d0
[  793.280230][   T73]      addrconf_f6i_alloc+0x265/0x560
[  793.280230][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  793.280230][   T73]      addrconf_join_anycast+0x1c0/0x220
[  793.280230][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  793.280230][   T73]      addrconf_dad_completed+0x12b/0xe20
[  793.280230][   T73]      addrconf_dad_begin+0x310/0x670
[  793.280230][   T73]      addrconf_dad_work+0x10b/0xab0
[  793.280230][   T73]      process_one_work+0x84d/0x18a0
[  793.280230][   T73]      worker_thread+0x587/0xd30
[  793.280230][   T73]      kthread+0x28a/0x350
[  793.280230][   T73]      ret_from_fork+0x31/0x70
[  793.280230][   T73]      ret_from_fork_asm+0x1a/0x30
[  793.280230][   T73] 
[  793.282607][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  793.282607][   T73]      netdev_get_by_index+0x5e/0x80
[  793.282607][   T73]      fib6_nh_init+0x3d8/0x1580
[  793.282607][   T73]      ip6_route_info_create+0xf18/0x17d0
[  793.282607][   T73]      ip6_route_add+0x1c/0x140
[  793.282607][   T73]      addrconf_prefix_route+0x2a6/0x430
[  793.282607][   T73]      inet6_addr_add+0x4f8/0xa40
[  793.282607][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  793.282607][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  793.282607][   T73]      netlink_rcv_skb+0x130/0x360
[  793.282607][   T73]      netlink_unicast+0x449/0x710
[  793.282607][   T73]      netlink_sendmsg+0x723/0xbe0
[  793.282607][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  793.282607][   T73]      ___sys_sendmsg+0xee/0x170
[  793.282607][   T73]      __sys_sendmsg+0xcd/0x170
[  793.282607][   T73]      do_syscall_64+0xc6/0x1e0
[  793.282607][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  793.282607][   T73] 
[  793.285061][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  793.285061][   T73]      netdev_get_by_index+0x5e/0x80
[  793.285061][   T73]      fib6_nh_init+0x3d8/0x1580
[  793.285061][   T73]      ip6_route_info_create+0xf18/0x17d0
[  793.285061][   T73]      addrconf_f6i_alloc+0x315/0x560
[  793.285061][   T73]      ipv6_add_addr+0x411/0x2000
[  793.285061][   T73]      inet6_addr_add+0x30e/0xa40
[  793.285061][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  793.285061][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  793.285061][   T73]      netlink_rcv_skb+0x130/0x360
[  793.285061][   T73]      netlink_unicast+0x449/0x710
[  793.285061][   T73]      netlink_sendmsg+0x723/0xbe0
[  793.285061][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  793.285061][   T73]      ___sys_sendmsg+0xee/0x170
[  793.285061][   T73]      __sys_sendmsg+0xcd/0x170
[  793.285061][   T73]      do_syscall_64+0xc6/0x1e0
[  793.285061][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  793.285061][   T73] 
[  793.287516][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  793.287516][   T73]      netdev_get_by_index+0x5e/0x80
[  793.287516][   T73]      fib6_nh_init+0x3d8/0x1580
[  793.287516][   T73]      ip6_route_info_create+0xf18/0x17d0
[  793.287516][   T73]      ip6_route_add+0x1c/0x140
[  793.287516][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  793.287516][   T73]      addrconf_add_dev+0xe2/0x170
[  793.287516][   T73]      inet6_addr_add+0x12f/0xa40
[  793.287516][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  793.287516][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  793.287516][   T73]      netlink_rcv_skb+0x130/0x360
[  793.287516][   T73]      netlink_unicast+0x449/0x710
[  793.287516][   T73]      netlink_sendmsg+0x723/0xbe0
[  793.287516][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  793.287516][   T73]      ___sys_sendmsg+0xee/0x170
[  793.287516][   T73]      __sys_sendmsg+0xcd/0x170
[  793.287516][   T73]      do_syscall_64+0xc6/0x1e0
[  793.287516][   T73] 
[  793.289944][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  793.289944][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  793.289944][   T73]      ipv6_find_idev+0x102/0x170
[  793.289944][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  793.289944][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  793.289944][   T73]      netlink_rcv_skb+0x130/0x360
[  793.289944][   T73]      netlink_unicast+0x449/0x710
[  793.289944][   T73]      netlink_sendmsg+0x723/0xbe0
[  793.289944][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  793.289944][   T73]      ___sys_sendmsg+0xee/0x170
[  793.289944][   T73]      __sys_sendmsg+0xcd/0x170
[  793.289944][   T73]      do_syscall_64+0xc6/0x1e0
[  793.289944][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  793.289944][   T73] 
[  793.291850][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  793.291850][   T73]      neigh_parms_alloc+0x1e5/0x510
[  793.291850][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  793.291850][   T73]      ipv6_find_idev+0x102/0x170
[  793.291850][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  793.291850][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  793.291850][   T73]      netlink_rcv_skb+0x130/0x360
[  793.291850][   T73]      netlink_unicast+0x449/0x710
[  793.291850][   T73]      netlink_sendmsg+0x723/0xbe0
[  793.291850][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  793.291850][   T73]      ___sys_sendmsg+0xee/0x170
[  793.291850][   T73]      __sys_sendmsg+0xcd/0x170
[  793.291850][   T73]      do_syscall_64+0xc6/0x1e0
[  793.291850][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  793.291850][   T73] 
[  793.293933][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  793.294264][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  793.294264][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  793.294264][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  793.294264][   T73]      fib6_nh_init+0xa22/0x1580
[  793.294264][   T73]      ip6_route_info_create+0xf18/0x17d0
[  793.294264][   T73]      ip6_route_add+0x1c/0x140
[  793.294264][   T73]      inet6_rtm_newroute+0x104/0x110
[  793.294264][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  793.294264][   T73]      netlink_rcv_skb+0x130/0x360
[  793.294264][   T73]      netlink_unicast+0x449/0x710
[  793.294264][   T73]      netlink_sendmsg+0x723/0xbe0
[  793.294264][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  793.294264][   T73]      ___sys_sendmsg+0xee/0x170
[  793.294264][   T73]      __sys_sendmsg+0xcd/0x170
[  793.294264][   T73]      do_syscall_64+0xc6/0x1e0
[  793.294264][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  793.294264][   T73] 
[  793.296762][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  793.296762][   T73]      dst_init+0x84/0x4a0
[  793.296762][   T73]      dst_alloc+0x97/0x150
[  793.296762][   T73]      ip6_dst_alloc+0x23/0x90
[  793.296762][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  793.296762][   T73]      ip6_pol_route+0x56f/0x840
[  793.296762][   T73]      fib6_rule_lookup+0x456/0x630
[  793.296762][   T73]      ip6_route_input+0x59c/0xa50
[  793.296762][   T73]      ipv6_rcv+0x397/0x810
[  793.296762][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  793.296762][   T73]      process_backlog+0x101/0x620
[  793.296762][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  793.296762][   T73]      net_rx_action+0x495/0xbe0
[  793.296762][   T73]      __do_softirq+0x1b5/0x7f6
[  793.296762][   T73] 
[  793.298949][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  793.298949][   T73]      netdev_get_by_index+0x5e/0x80
[  793.298949][   T73]      fib6_nh_init+0x3d8/0x1580
[  793.298949][   T73]      ip6_route_info_create+0xf18/0x17d0
[  793.298949][   T73]      ip6_route_add+0x1c/0x140
[  793.298949][   T73]      addrconf_prefix_route+0x2a6/0x430
[  793.298949][   T73]      inet6_addr_add+0x4f8/0xa40
[  793.298949][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  793.298949][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  793.298949][   T73]      netlink_rcv_skb+0x130/0x360
[  793.298949][   T73]      netlink_unicast+0x449/0x710
[  793.298949][   T73]      netlink_sendmsg+0x723/0xbe0
[  793.298949][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  793.298949][   T73]      ___sys_sendmsg+0xee/0x170
[  793.298949][   T73]      __sys_sendmsg+0xcd/0x170
[  793.298949][   T73]      do_syscall_64+0xc6/0x1e0
[  793.298949][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  793.298949][   T73] 
[  793.301729][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  793.301729][   T73]      netdev_get_by_index+0x5e/0x80
[  793.301729][   T73]      fib6_nh_init+0x3d8/0x1580
[  793.301729][   T73]      ip6_route_info_create+0xf18/0x17d0
[  793.301729][   T73]      addrconf_f6i_alloc+0x315/0x560
[  793.301729][   T73]      ipv6_add_addr+0x411/0x2000
[  793.301729][   T73]      inet6_addr_add+0x30e/0xa40
[  793.301729][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  793.301729][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  793.301729][   T73]      netlink_rcv_skb+0x130/0x360
[  793.301729][   T73]      netlink_unicast+0x449/0x710
[  793.301729][   T73]      netlink_sendmsg+0x723/0xbe0
[  793.301729][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  793.301729][   T73]      ___sys_sendmsg+0xee/0x170
[  793.301729][   T73]      __sys_sendmsg+0xcd/0x170
[  793.301729][   T73]      do_syscall_64+0xc6/0x1e0
[  793.301729][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  793.301729][   T73] 
[  793.304416][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  793.304416][   T73]      netdev_get_by_index+0x5e/0x80
[  793.304416][   T73]      fib6_nh_init+0x3d8/0x1580
[  793.304416][   T73]      ip6_route_info_create+0xf18/0x17d0
[  793.304416][   T73]      ip6_route_add+0x1c/0x140
[  793.304416][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  793.304416][   T73]      addrconf_add_dev+0xe2/0x170
[  793.304416][   T73]      inet6_addr_add+0x12f/0xa40
[  793.304416][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  793.304416][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  793.304416][   T73]      netlink_rcv_skb+0x130/0x360
[  793.304416][   T73]      netlink_unicast+0x449/0x710
[  793.304416][   T73]      netlink_sendmsg+0x723/0xbe0
[  793.304416][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  793.304416][   T73]      ___sys_sendmsg+0xee/0x170
[  793.304416][   T73]      __sys_sendmsg+0xcd/0x170
[  793.304416][   T73]      do_syscall_64+0xc6/0x1e0
[  793.304416][   T73] 
[  793.306996][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  793.306996][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  793.306996][   T73]      ipv6_find_idev+0x102/0x170
[  793.306996][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  793.306996][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  793.306996][   T73]      netlink_rcv_skb+0x130/0x360
[  793.306996][   T73]      netlink_unicast+0x449/0x710
[  793.306996][   T73]      netlink_sendmsg+0x723/0xbe0
[  793.306996][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  793.306996][   T73]      ___sys_sendmsg+0xee/0x170
[  793.306996][   T73]      __sys_sendmsg+0xcd/0x170
[  793.306996][   T73]      do_syscall_64+0xc6/0x1e0
[  793.306996][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  793.306996][   T73] 
[  793.309062][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  793.309062][   T73]      neigh_parms_alloc+0x1e5/0x510
[  793.309062][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  793.309062][   T73]      ipv6_find_idev+0x102/0x170
[  793.309062][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  793.309062][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  793.309062][   T73]      netlink_rcv_skb+0x130/0x360
[  793.309062][   T73]      netlink_unicast+0x449/0x710
[  793.309062][   T73]      netlink_sendmsg+0x723/0xbe0
[  793.309062][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  793.309062][   T73]      ___sys_sendmsg+0xee/0x170
[  793.309062][   T73]      __sys_sendmsg+0xcd/0x170
[  793.309062][   T73]      do_syscall_64+0xc6/0x1e0
[  793.309062][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  793.309062][   T73] 
[  793.311387][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  793.311746][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  793.311746][   T73]      netdev_get_by_index+0x5e/0x80
[  793.311746][   T73]      fib6_nh_init+0x3d8/0x1580
[  793.311746][   T73]      ip6_route_info_create+0xf18/0x17d0
[  793.311746][   T73]      addrconf_f6i_alloc+0x265/0x560
[  793.311746][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  793.311746][   T73]      addrconf_join_anycast+0x1c0/0x220
[  793.311746][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  793.311746][   T73]      addrconf_dad_completed+0x12b/0xe20
[  793.311746][   T73]      addrconf_dad_begin+0x310/0x670
[  793.311746][   T73]      addrconf_dad_work+0x10b/0xab0
[  793.311746][   T73]      process_one_work+0x84d/0x18a0
[  793.311746][   T73]      worker_thread+0x587/0xd30
[  793.311746][   T73]      kthread+0x28a/0x350
[  793.311746][   T73]      ret_from_fork+0x31/0x70
[  793.311746][   T73]      ret_from_fork_asm+0x1a/0x30
[  793.311746][   T73] 
[  793.314406][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  793.314406][   T73]      netdev_get_by_index+0x5e/0x80
[  793.314406][   T73]      fib6_nh_init+0x3d8/0x1580
[  793.314406][   T73]      ip6_route_info_create+0xf18/0x17d0
[  793.314406][   T73]      ip6_route_add+0x1c/0x140
[  793.314406][   T73]      addrconf_prefix_route+0x2a6/0x430
[  793.314406][   T73]      inet6_addr_add+0x4f8/0xa40
[  793.314406][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  793.314406][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  793.314406][   T73]      netlink_rcv_skb+0x130/0x360
[  793.314406][   T73]      netlink_unicast+0x449/0x710
[  793.314406][   T73]      netlink_sendmsg+0x723/0xbe0
[  793.314406][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  793.314406][   T73]      ___sys_sendmsg+0xee/0x170
[  793.314406][   T73]      __sys_sendmsg+0xcd/0x170
[  793.314406][   T73]      do_syscall_64+0xc6/0x1e0
[  793.314406][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  793.314406][   T73] 
[  793.317049][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  793.317049][   T73]      netdev_get_by_index+0x5e/0x80
[  793.317049][   T73]      fib6_nh_init+0x3d8/0x1580
[  793.317049][   T73]      ip6_route_info_create+0xf18/0x17d0
[  793.317049][   T73]      addrconf_f6i_alloc+0x315/0x560
[  793.317049][   T73]      ipv6_add_addr+0x411/0x2000
[  793.317049][   T73]      inet6_addr_add+0x30e/0xa40
[  793.317049][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  793.317049][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  793.317049][   T73]      netlink_rcv_skb+0x130/0x360
[  793.317049][   T73]      netlink_unicast+0x449/0x710
[  793.317049][   T73]      netlink_sendmsg+0x723/0xbe0
[  793.317049][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  793.317049][   T73]      ___sys_sendmsg+0xee/0x170
[  793.317049][   T73]      __sys_sendmsg+0xcd/0x170
[  793.317049][   T73]      do_syscall_64+0xc6/0x1e0
[  793.317049][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  793.317049][   T73] 
[  793.319757][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  793.319757][   T73]      netdev_get_by_index+0x5e/0x80
[  793.319757][   T73]      fib6_nh_init+0x3d8/0x1580
[  793.319757][   T73]      ip6_route_info_create+0xf18/0x17d0
[  793.319757][   T73]      ip6_route_add+0x1c/0x140
[  793.319757][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  793.319757][   T73]      addrconf_add_dev+0xe2/0x170
[  793.319757][   T73]      inet6_addr_add+0x12f/0xa40
[  793.319757][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  793.319757][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  793.319757][   T73]      netlink_rcv_skb+0x130/0x360
[  793.319757][   T73]      netlink_unicast+0x449/0x710
[  793.319757][   T73]      netlink_sendmsg+0x723/0xbe0
[  793.319757][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  793.319757][   T73]      ___sys_sendmsg+0xee/0x170
[  793.319757][   T73]      __sys_sendmsg+0xcd/0x170
[  793.319757][   T73]      do_syscall_64+0xc6/0x1e0
[  793.319757][   T73] 
[  793.322430][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  793.322430][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  793.322430][   T73]      ipv6_find_idev+0x102/0x170
[  793.322430][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  793.322430][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  793.322430][   T73]      netlink_rcv_skb+0x130/0x360
[  793.322430][   T73]      netlink_unicast+0x449/0x710
[  793.322430][   T73]      netlink_sendmsg+0x723/0xbe0
[  793.322430][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  793.322430][   T73]      ___sys_sendmsg+0xee/0x170
[  793.322430][   T73]      __sys_sendmsg+0xcd/0x170
[  793.322430][   T73]      do_syscall_64+0xc6/0x1e0
[  793.322430][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  793.322430][   T73] 
[  793.324563][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  793.324563][   T73]      neigh_parms_alloc+0x1e5/0x510
[  793.324563][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  793.324563][   T73]      ipv6_find_idev+0x102/0x170
[  793.324563][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  793.324563][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  793.324563][   T73]      netlink_rcv_skb+0x130/0x360
[  793.324563][   T73]      netlink_unicast+0x449/0x710
[  793.324563][   T73]      netlink_sendmsg+0x723/0xbe0
[  793.324563][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  793.324563][   T73]      ___sys_sendmsg+0xee/0x170
[  793.324563][   T73]      __sys_sendmsg+0xcd/0x170
[  793.324563][   T73]      do_syscall_64+0xc6/0x1e0
[  793.324563][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  793.324563][   T73] 
[  803.567771][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  803.568183][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  803.568183][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  803.568183][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  803.568183][   T73]      fib6_nh_init+0xa22/0x1580
[  803.568183][   T73]      ip6_route_info_create+0xf18/0x17d0
[  803.568183][   T73]      ip6_route_add+0x1c/0x140
[  803.568183][   T73]      inet6_rtm_newroute+0x104/0x110
[  803.568183][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  803.568183][   T73]      netlink_rcv_skb+0x130/0x360
[  803.568183][   T73]      netlink_unicast+0x449/0x710
[  803.568183][   T73]      netlink_sendmsg+0x723/0xbe0
[  803.568183][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  803.568183][   T73]      ___sys_sendmsg+0xee/0x170
[  803.568183][   T73]      __sys_sendmsg+0xcd/0x170
[  803.568183][   T73]      do_syscall_64+0xc6/0x1e0
[  803.568183][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  803.568183][   T73] 
[  803.570078][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  803.570078][   T73]      dst_init+0x84/0x4a0
[  803.570078][   T73]      dst_alloc+0x97/0x150
[  803.570078][   T73]      ip6_dst_alloc+0x23/0x90
[  803.570078][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  803.570078][   T73]      ip6_pol_route+0x56f/0x840
[  803.570078][   T73]      fib6_rule_lookup+0x456/0x630
[  803.570078][   T73]      ip6_route_input+0x59c/0xa50
[  803.570078][   T73]      ipv6_rcv+0x397/0x810
[  803.570078][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  803.570078][   T73]      process_backlog+0x101/0x620
[  803.570078][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  803.570078][   T73]      net_rx_action+0x495/0xbe0
[  803.570078][   T73]      __do_softirq+0x1b5/0x7f6
[  803.570078][   T73] 
[  803.571725][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  803.571725][   T73]      netdev_get_by_index+0x5e/0x80
[  803.571725][   T73]      fib6_nh_init+0x3d8/0x1580
[  803.571725][   T73]      ip6_route_info_create+0xf18/0x17d0
[  803.571725][   T73]      ip6_route_add+0x1c/0x140
[  803.571725][   T73]      addrconf_prefix_route+0x2a6/0x430
[  803.571725][   T73]      inet6_addr_add+0x4f8/0xa40
[  803.571725][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  803.571725][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  803.571725][   T73]      netlink_rcv_skb+0x130/0x360
[  803.571725][   T73]      netlink_unicast+0x449/0x710
[  803.571725][   T73]      netlink_sendmsg+0x723/0xbe0
[  803.571725][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  803.571725][   T73]      ___sys_sendmsg+0xee/0x170
[  803.571725][   T73]      __sys_sendmsg+0xcd/0x170
[  803.571725][   T73]      do_syscall_64+0xc6/0x1e0
[  803.571725][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  803.571725][   T73] 
[  803.573726][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  803.573726][   T73]      netdev_get_by_index+0x5e/0x80
[  803.573726][   T73]      fib6_nh_init+0x3d8/0x1580
[  803.573726][   T73]      ip6_route_info_create+0xf18/0x17d0
[  803.573726][   T73]      addrconf_f6i_alloc+0x315/0x560
[  803.573726][   T73]      ipv6_add_addr+0x411/0x2000
[  803.573726][   T73]      inet6_addr_add+0x30e/0xa40
[  803.573726][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  803.573726][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  803.573726][   T73]      netlink_rcv_skb+0x130/0x360
[  803.573726][   T73]      netlink_unicast+0x449/0x710
[  803.573726][   T73]      netlink_sendmsg+0x723/0xbe0
[  803.573726][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  803.573726][   T73]      ___sys_sendmsg+0xee/0x170
[  803.573726][   T73]      __sys_sendmsg+0xcd/0x170
[  803.573726][   T73]      do_syscall_64+0xc6/0x1e0
[  803.573726][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  803.573726][   T73] 
[  803.575716][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  803.575716][   T73]      netdev_get_by_index+0x5e/0x80
[  803.575716][   T73]      fib6_nh_init+0x3d8/0x1580
[  803.575716][   T73]      ip6_route_info_create+0xf18/0x17d0
[  803.575716][   T73]      ip6_route_add+0x1c/0x140
[  803.575716][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  803.575716][   T73]      addrconf_add_dev+0xe2/0x170
[  803.575716][   T73]      inet6_addr_add+0x12f/0xa40
[  803.575716][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  803.575716][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  803.575716][   T73]      netlink_rcv_skb+0x130/0x360
[  803.575716][   T73]      netlink_unicast+0x449/0x710
[  803.575716][   T73]      netlink_sendmsg+0x723/0xbe0
[  803.575716][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  803.575716][   T73]      ___sys_sendmsg+0xee/0x170
[  803.575716][   T73]      __sys_sendmsg+0xcd/0x170
[  803.575716][   T73]      do_syscall_64+0xc6/0x1e0
[  803.575716][   T73] 
[  803.577672][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  803.577672][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  803.577672][   T73]      ipv6_find_idev+0x102/0x170
[  803.577672][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  803.577672][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  803.577672][   T73]      netlink_rcv_skb+0x130/0x360
[  803.577672][   T73]      netlink_unicast+0x449/0x710
[  803.577672][   T73]      netlink_sendmsg+0x723/0xbe0
[  803.577672][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  803.577672][   T73]      ___sys_sendmsg+0xee/0x170
[  803.577672][   T73]      __sys_sendmsg+0xcd/0x170
[  803.577672][   T73]      do_syscall_64+0xc6/0x1e0
[  803.577672][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  803.577672][   T73] 
[  803.579205][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  803.579205][   T73]      neigh_parms_alloc+0x1e5/0x510
[  803.579205][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  803.579205][   T73]      ipv6_find_idev+0x102/0x170
[  803.579205][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  803.579205][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  803.579205][   T73]      netlink_rcv_skb+0x130/0x360
[  803.579205][   T73]      netlink_unicast+0x449/0x710
[  803.579205][   T73]      netlink_sendmsg+0x723/0xbe0
[  803.579205][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  803.579205][   T73]      ___sys_sendmsg+0xee/0x170
[  803.579205][   T73]      __sys_sendmsg+0xcd/0x170
[  803.579205][   T73]      do_syscall_64+0xc6/0x1e0
[  803.579205][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  803.579205][   T73] 
[  803.580905][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  803.581187][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  803.581187][   T73]      netdev_get_by_index+0x5e/0x80
[  803.581187][   T73]      fib6_nh_init+0x3d8/0x1580
[  803.581187][   T73]      ip6_route_info_create+0xf18/0x17d0
[  803.581187][   T73]      addrconf_f6i_alloc+0x265/0x560
[  803.581187][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  803.581187][   T73]      addrconf_join_anycast+0x1c0/0x220
[  803.581187][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  803.581187][   T73]      addrconf_dad_completed+0x12b/0xe20
[  803.581187][   T73]      addrconf_dad_begin+0x310/0x670
[  803.581187][   T73]      addrconf_dad_work+0x10b/0xab0
[  803.581187][   T73]      process_one_work+0x84d/0x18a0
[  803.581187][   T73]      worker_thread+0x587/0xd30
[  803.581187][   T73]      kthread+0x28a/0x350
[  803.581187][   T73]      ret_from_fork+0x31/0x70
[  803.581187][   T73]      ret_from_fork_asm+0x1a/0x30
[  803.581187][   T73] 
[  803.583100][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  803.583100][   T73]      netdev_get_by_index+0x5e/0x80
[  803.583100][   T73]      fib6_nh_init+0x3d8/0x1580
[  803.583100][   T73]      ip6_route_info_create+0xf18/0x17d0
[  803.583100][   T73]      ip6_route_add+0x1c/0x140
[  803.583100][   T73]      addrconf_prefix_route+0x2a6/0x430
[  803.583100][   T73]      inet6_addr_add+0x4f8/0xa40
[  803.583100][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  803.583100][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  803.583100][   T73]      netlink_rcv_skb+0x130/0x360
[  803.583100][   T73]      netlink_unicast+0x449/0x710
[  803.583100][   T73]      netlink_sendmsg+0x723/0xbe0
[  803.583100][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  803.583100][   T73]      ___sys_sendmsg+0xee/0x170
[  803.583100][   T73]      __sys_sendmsg+0xcd/0x170
[  803.583100][   T73]      do_syscall_64+0xc6/0x1e0
[  803.583100][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  803.583100][   T73] 
[  803.585094][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  803.585094][   T73]      netdev_get_by_index+0x5e/0x80
[  803.585094][   T73]      fib6_nh_init+0x3d8/0x1580
[  803.585094][   T73]      ip6_route_info_create+0xf18/0x17d0
[  803.585094][   T73]      addrconf_f6i_alloc+0x315/0x560
[  803.585094][   T73]      ipv6_add_addr+0x411/0x2000
[  803.585094][   T73]      inet6_addr_add+0x30e/0xa40
[  803.585094][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  803.585094][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  803.585094][   T73]      netlink_rcv_skb+0x130/0x360
[  803.585094][   T73]      netlink_unicast+0x449/0x710
[  803.585094][   T73]      netlink_sendmsg+0x723/0xbe0
[  803.585094][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  803.585094][   T73]      ___sys_sendmsg+0xee/0x170
[  803.585094][   T73]      __sys_sendmsg+0xcd/0x170
[  803.585094][   T73]      do_syscall_64+0xc6/0x1e0
[  803.585094][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  803.585094][   T73] 
[  803.587072][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  803.587072][   T73]      netdev_get_by_index+0x5e/0x80
[  803.587072][   T73]      fib6_nh_init+0x3d8/0x1580
[  803.587072][   T73]      ip6_route_info_create+0xf18/0x17d0
[  803.587072][   T73]      ip6_route_add+0x1c/0x140
[  803.587072][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  803.587072][   T73]      addrconf_add_dev+0xe2/0x170
[  803.587072][   T73]      inet6_addr_add+0x12f/0xa40
[  803.587072][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  803.587072][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  803.587072][   T73]      netlink_rcv_skb+0x130/0x360
[  803.587072][   T73]      netlink_unicast+0x449/0x710
[  803.587072][   T73]      netlink_sendmsg+0x723/0xbe0
[  803.587072][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  803.587072][   T73]      ___sys_sendmsg+0xee/0x170
[  803.587072][   T73]      __sys_sendmsg+0xcd/0x170
[  803.587072][   T73]      do_syscall_64+0xc6/0x1e0
[  803.587072][   T73] 
[  803.589016][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  803.589016][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  803.589016][   T73]      ipv6_find_idev+0x102/0x170
[  803.589016][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  803.589016][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  803.589016][   T73]      netlink_rcv_skb+0x130/0x360
[  803.589016][   T73]      netlink_unicast+0x449/0x710
[  803.589016][   T73]      netlink_sendmsg+0x723/0xbe0
[  803.589016][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  803.589016][   T73]      ___sys_sendmsg+0xee/0x170
[  803.589016][   T73]      __sys_sendmsg+0xcd/0x170
[  803.589016][   T73]      do_syscall_64+0xc6/0x1e0
[  803.589016][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  803.589016][   T73] 
[  803.590545][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  803.590545][   T73]      neigh_parms_alloc+0x1e5/0x510
[  803.590545][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  803.590545][   T73]      ipv6_find_idev+0x102/0x170
[  803.590545][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  803.590545][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  803.590545][   T73]      netlink_rcv_skb+0x130/0x360
[  803.590545][   T73]      netlink_unicast+0x449/0x710
[  803.590545][   T73]      netlink_sendmsg+0x723/0xbe0
[  803.590545][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  803.590545][   T73]      ___sys_sendmsg+0xee/0x170
[  803.590545][   T73]      __sys_sendmsg+0xcd/0x170
[  803.590545][   T73]      do_syscall_64+0xc6/0x1e0
[  803.590545][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  803.590545][   T73] 
[  803.592252][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  803.592517][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  803.592517][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  803.592517][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  803.592517][   T73]      fib6_nh_init+0xa22/0x1580
[  803.592517][   T73]      ip6_route_info_create+0xf18/0x17d0
[  803.592517][   T73]      ip6_route_add+0x1c/0x140
[  803.592517][   T73]      inet6_rtm_newroute+0x104/0x110
[  803.592517][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  803.592517][   T73]      netlink_rcv_skb+0x130/0x360
[  803.592517][   T73]      netlink_unicast+0x449/0x710
[  803.592517][   T73]      netlink_sendmsg+0x723/0xbe0
[  803.592517][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  803.592517][   T73]      ___sys_sendmsg+0xee/0x170
[  803.592517][   T73]      __sys_sendmsg+0xcd/0x170
[  803.592517][   T73]      do_syscall_64+0xc6/0x1e0
[  803.592517][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  803.592517][   T73] 
[  803.594576][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  803.594576][   T73]      dst_init+0x84/0x4a0
[  803.594576][   T73]      dst_alloc+0x97/0x150
[  803.594576][   T73]      ip6_dst_alloc+0x23/0x90
[  803.594576][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  803.594576][   T73]      ip6_pol_route+0x56f/0x840
[  803.594576][   T73]      fib6_rule_lookup+0x456/0x630
[  803.594576][   T73]      ip6_route_input+0x59c/0xa50
[  803.594576][   T73]      ipv6_rcv+0x397/0x810
[  803.594576][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  803.594576][   T73]      process_backlog+0x101/0x620
[  803.594576][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  803.594576][   T73]      net_rx_action+0x495/0xbe0
[  803.594576][   T73]      __do_softirq+0x1b5/0x7f6
[  803.594576][   T73] 
[  803.596390][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  803.596390][   T73]      netdev_get_by_index+0x5e/0x80
[  803.596390][   T73]      fib6_nh_init+0x3d8/0x1580
[  803.596390][   T73]      ip6_route_info_create+0xf18/0x17d0
[  803.596390][   T73]      ip6_route_add+0x1c/0x140
[  803.596390][   T73]      addrconf_prefix_route+0x2a6/0x430
[  803.596390][   T73]      inet6_addr_add+0x4f8/0xa40
[  803.596390][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  803.596390][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  803.596390][   T73]      netlink_rcv_skb+0x130/0x360
[  803.596390][   T73]      netlink_unicast+0x449/0x710
[  803.596390][   T73]      netlink_sendmsg+0x723/0xbe0
[  803.596390][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  803.596390][   T73]      ___sys_sendmsg+0xee/0x170
[  803.596390][   T73]      __sys_sendmsg+0xcd/0x170
[  803.596390][   T73]      do_syscall_64+0xc6/0x1e0
[  803.596390][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  803.596390][   T73] 
[  803.598775][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  803.598775][   T73]      netdev_get_by_index+0x5e/0x80
[  803.598775][   T73]      fib6_nh_init+0x3d8/0x1580
[  803.598775][   T73]      ip6_route_info_create+0xf18/0x17d0
[  803.598775][   T73]      addrconf_f6i_alloc+0x315/0x560
[  803.598775][   T73]      ipv6_add_addr+0x411/0x2000
[  803.598775][   T73]      inet6_addr_add+0x30e/0xa40
[  803.598775][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  803.598775][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  803.598775][   T73]      netlink_rcv_skb+0x130/0x360
[  803.598775][   T73]      netlink_unicast+0x449/0x710
[  803.598775][   T73]      netlink_sendmsg+0x723/0xbe0
[  803.598775][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  803.598775][   T73]      ___sys_sendmsg+0xee/0x170
[  803.598775][   T73]      __sys_sendmsg+0xcd/0x170
[  803.598775][   T73]      do_syscall_64+0xc6/0x1e0
[  803.598775][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  803.598775][   T73] 
[  803.601285][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  803.601285][   T73]      netdev_get_by_index+0x5e/0x80
[  803.601285][   T73]      fib6_nh_init+0x3d8/0x1580
[  803.601285][   T73]      ip6_route_info_create+0xf18/0x17d0
[  803.601285][   T73]      ip6_route_add+0x1c/0x140
[  803.601285][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  803.601285][   T73]      addrconf_add_dev+0xe2/0x170
[  803.601285][   T73]      inet6_addr_add+0x12f/0xa40
[  803.601285][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  803.601285][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  803.601285][   T73]      netlink_rcv_skb+0x130/0x360
[  803.601285][   T73]      netlink_unicast+0x449/0x710
[  803.601285][   T73]      netlink_sendmsg+0x723/0xbe0
[  803.601285][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  803.601285][   T73]      ___sys_sendmsg+0xee/0x170
[  803.601285][   T73]      __sys_sendmsg+0xcd/0x170
[  803.601285][   T73]      do_syscall_64+0xc6/0x1e0
[  803.601285][   T73] 
[  803.603808][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  803.603808][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  803.603808][   T73]      ipv6_find_idev+0x102/0x170
[  803.603808][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  803.603808][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  803.603808][   T73]      netlink_rcv_skb+0x130/0x360
[  803.603808][   T73]      netlink_unicast+0x449/0x710
[  803.603808][   T73]      netlink_sendmsg+0x723/0xbe0
[  803.603808][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  803.603808][   T73]      ___sys_sendmsg+0xee/0x170
[  803.603808][   T73]      __sys_sendmsg+0xcd/0x170
[  803.603808][   T73]      do_syscall_64+0xc6/0x1e0
[  803.603808][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  803.603808][   T73] 
[  803.605845][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  803.605845][   T73]      neigh_parms_alloc+0x1e5/0x510
[  803.605845][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  803.605845][   T73]      ipv6_find_idev+0x102/0x170
[  803.605845][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  803.605845][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  803.605845][   T73]      netlink_rcv_skb+0x130/0x360
[  803.605845][   T73]      netlink_unicast+0x449/0x710
[  803.605845][   T73]      netlink_sendmsg+0x723/0xbe0
[  803.605845][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  803.605845][   T73]      ___sys_sendmsg+0xee/0x170
[  803.605845][   T73]      __sys_sendmsg+0xcd/0x170
[  803.605845][   T73]      do_syscall_64+0xc6/0x1e0
[  803.605845][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  803.605845][   T73] 
[  803.607963][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  803.608329][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  803.608329][   T73]      netdev_get_by_index+0x5e/0x80
[  803.608329][   T73]      fib6_nh_init+0x3d8/0x1580
[  803.608329][   T73]      ip6_route_info_create+0xf18/0x17d0
[  803.608329][   T73]      addrconf_f6i_alloc+0x265/0x560
[  803.608329][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  803.608329][   T73]      addrconf_join_anycast+0x1c0/0x220
[  803.608329][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  803.608329][   T73]      addrconf_dad_completed+0x12b/0xe20
[  803.608329][   T73]      addrconf_dad_begin+0x310/0x670
[  803.608329][   T73]      addrconf_dad_work+0x10b/0xab0
[  803.608329][   T73]      process_one_work+0x84d/0x18a0
[  803.608329][   T73]      worker_thread+0x587/0xd30
[  803.608329][   T73]      kthread+0x28a/0x350
[  803.608329][   T73]      ret_from_fork+0x31/0x70
[  803.608329][   T73]      ret_from_fork_asm+0x1a/0x30
[  803.608329][   T73] 
[  803.610754][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  803.610754][   T73]      netdev_get_by_index+0x5e/0x80
[  803.610754][   T73]      fib6_nh_init+0x3d8/0x1580
[  803.610754][   T73]      ip6_route_info_create+0xf18/0x17d0
[  803.610754][   T73]      ip6_route_add+0x1c/0x140
[  803.610754][   T73]      addrconf_prefix_route+0x2a6/0x430
[  803.610754][   T73]      inet6_addr_add+0x4f8/0xa40
[  803.610754][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  803.610754][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  803.610754][   T73]      netlink_rcv_skb+0x130/0x360
[  803.610754][   T73]      netlink_unicast+0x449/0x710
[  803.610754][   T73]      netlink_sendmsg+0x723/0xbe0
[  803.610754][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  803.610754][   T73]      ___sys_sendmsg+0xee/0x170
[  803.610754][   T73]      __sys_sendmsg+0xcd/0x170
[  803.610754][   T73]      do_syscall_64+0xc6/0x1e0
[  803.610754][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  803.610754][   T73] 
[  803.613302][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  803.613302][   T73]      netdev_get_by_index+0x5e/0x80
[  803.613302][   T73]      fib6_nh_init+0x3d8/0x1580
[  803.613302][   T73]      ip6_route_info_create+0xf18/0x17d0
[  803.613302][   T73]      addrconf_f6i_alloc+0x315/0x560
[  803.613302][   T73]      ipv6_add_addr+0x411/0x2000
[  803.613302][   T73]      inet6_addr_add+0x30e/0xa40
[  803.613302][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  803.613302][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  803.613302][   T73]      netlink_rcv_skb+0x130/0x360
[  803.613302][   T73]      netlink_unicast+0x449/0x710
[  803.613302][   T73]      netlink_sendmsg+0x723/0xbe0
[  803.613302][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  803.613302][   T73]      ___sys_sendmsg+0xee/0x170
[  803.613302][   T73]      __sys_sendmsg+0xcd/0x170
[  803.613302][   T73]      do_syscall_64+0xc6/0x1e0
[  803.613302][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  803.613302][   T73] 
[  803.615902][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  803.615902][   T73]      netdev_get_by_index+0x5e/0x80
[  803.615902][   T73]      fib6_nh_init+0x3d8/0x1580
[  803.615902][   T73]      ip6_route_info_create+0xf18/0x17d0
[  803.615902][   T73]      ip6_route_add+0x1c/0x140
[  803.615902][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  803.615902][   T73]      addrconf_add_dev+0xe2/0x170
[  803.615902][   T73]      inet6_addr_add+0x12f/0xa40
[  803.615902][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  803.615902][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  803.615902][   T73]      netlink_rcv_skb+0x130/0x360
[  803.615902][   T73]      netlink_unicast+0x449/0x710
[  803.615902][   T73]      netlink_sendmsg+0x723/0xbe0
[  803.615902][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  803.615902][   T73]      ___sys_sendmsg+0xee/0x170
[  803.615902][   T73]      __sys_sendmsg+0xcd/0x170
[  803.615902][   T73]      do_syscall_64+0xc6/0x1e0
[  803.615902][   T73] 
[  803.618382][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  803.618382][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  803.618382][   T73]      ipv6_find_idev+0x102/0x170
[  803.618382][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  803.618382][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  803.618382][   T73]      netlink_rcv_skb+0x130/0x360
[  803.618382][   T73]      netlink_unicast+0x449/0x710
[  803.618382][   T73]      netlink_sendmsg+0x723/0xbe0
[  803.618382][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  803.618382][   T73]      ___sys_sendmsg+0xee/0x170
[  803.618382][   T73]      __sys_sendmsg+0xcd/0x170
[  803.618382][   T73]      do_syscall_64+0xc6/0x1e0
[  803.618382][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  803.618382][   T73] 
[  803.620459][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  803.620459][   T73]      neigh_parms_alloc+0x1e5/0x510
[  803.620459][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  803.620459][   T73]      ipv6_find_idev+0x102/0x170
[  803.620459][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  803.620459][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  803.620459][   T73]      netlink_rcv_skb+0x130/0x360
[  803.620459][   T73]      netlink_unicast+0x449/0x710
[  803.620459][   T73]      netlink_sendmsg+0x723/0xbe0
[  803.620459][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  803.620459][   T73]      ___sys_sendmsg+0xee/0x170
[  803.620459][   T73]      __sys_sendmsg+0xcd/0x170
[  803.620459][   T73]      do_syscall_64+0xc6/0x1e0
[  803.620459][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  803.620459][   T73] 
[  813.807835][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  813.808264][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  813.808264][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  813.808264][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  813.808264][   T73]      fib6_nh_init+0xa22/0x1580
[  813.808264][   T73]      ip6_route_info_create+0xf18/0x17d0
[  813.808264][   T73]      ip6_route_add+0x1c/0x140
[  813.808264][   T73]      inet6_rtm_newroute+0x104/0x110
[  813.808264][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  813.808264][   T73]      netlink_rcv_skb+0x130/0x360
[  813.808264][   T73]      netlink_unicast+0x449/0x710
[  813.808264][   T73]      netlink_sendmsg+0x723/0xbe0
[  813.808264][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  813.808264][   T73]      ___sys_sendmsg+0xee/0x170
[  813.808264][   T73]      __sys_sendmsg+0xcd/0x170
[  813.808264][   T73]      do_syscall_64+0xc6/0x1e0
[  813.808264][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  813.808264][   T73] 
[  813.810287][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  813.810287][   T73]      dst_init+0x84/0x4a0
[  813.810287][   T73]      dst_alloc+0x97/0x150
[  813.810287][   T73]      ip6_dst_alloc+0x23/0x90
[  813.810287][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  813.810287][   T73]      ip6_pol_route+0x56f/0x840
[  813.810287][   T73]      fib6_rule_lookup+0x456/0x630
[  813.810287][   T73]      ip6_route_input+0x59c/0xa50
[  813.810287][   T73]      ipv6_rcv+0x397/0x810
[  813.810287][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  813.810287][   T73]      process_backlog+0x101/0x620
[  813.810287][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  813.810287][   T73]      net_rx_action+0x495/0xbe0
[  813.810287][   T73]      __do_softirq+0x1b5/0x7f6
[  813.810287][   T73] 
[  813.812077][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  813.812077][   T73]      netdev_get_by_index+0x5e/0x80
[  813.812077][   T73]      fib6_nh_init+0x3d8/0x1580
[  813.812077][   T73]      ip6_route_info_create+0xf18/0x17d0
[  813.812077][   T73]      ip6_route_add+0x1c/0x140
[  813.812077][   T73]      addrconf_prefix_route+0x2a6/0x430
[  813.812077][   T73]      inet6_addr_add+0x4f8/0xa40
[  813.812077][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  813.812077][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  813.812077][   T73]      netlink_rcv_skb+0x130/0x360
[  813.812077][   T73]      netlink_unicast+0x449/0x710
[  813.812077][   T73]      netlink_sendmsg+0x723/0xbe0
[  813.812077][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  813.812077][   T73]      ___sys_sendmsg+0xee/0x170
[  813.812077][   T73]      __sys_sendmsg+0xcd/0x170
[  813.812077][   T73]      do_syscall_64+0xc6/0x1e0
[  813.812077][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  813.812077][   T73] 
[  813.814260][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  813.814260][   T73]      netdev_get_by_index+0x5e/0x80
[  813.814260][   T73]      fib6_nh_init+0x3d8/0x1580
[  813.814260][   T73]      ip6_route_info_create+0xf18/0x17d0
[  813.814260][   T73]      addrconf_f6i_alloc+0x315/0x560
[  813.814260][   T73]      ipv6_add_addr+0x411/0x2000
[  813.814260][   T73]      inet6_addr_add+0x30e/0xa40
[  813.814260][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  813.814260][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  813.814260][   T73]      netlink_rcv_skb+0x130/0x360
[  813.814260][   T73]      netlink_unicast+0x449/0x710
[  813.814260][   T73]      netlink_sendmsg+0x723/0xbe0
[  813.814260][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  813.814260][   T73]      ___sys_sendmsg+0xee/0x170
[  813.814260][   T73]      __sys_sendmsg+0xcd/0x170
[  813.814260][   T73]      do_syscall_64+0xc6/0x1e0
[  813.814260][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  813.814260][   T73] 
[  813.816333][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  813.816333][   T73]      netdev_get_by_index+0x5e/0x80
[  813.816333][   T73]      fib6_nh_init+0x3d8/0x1580
[  813.816333][   T73]      ip6_route_info_create+0xf18/0x17d0
[  813.816333][   T73]      ip6_route_add+0x1c/0x140
[  813.816333][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  813.816333][   T73]      addrconf_add_dev+0xe2/0x170
[  813.816333][   T73]      inet6_addr_add+0x12f/0xa40
[  813.816333][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  813.816333][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  813.816333][   T73]      netlink_rcv_skb+0x130/0x360
[  813.816333][   T73]      netlink_unicast+0x449/0x710
[  813.816333][   T73]      netlink_sendmsg+0x723/0xbe0
[  813.816333][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  813.816333][   T73]      ___sys_sendmsg+0xee/0x170
[  813.816333][   T73]      __sys_sendmsg+0xcd/0x170
[  813.816333][   T73]      do_syscall_64+0xc6/0x1e0
[  813.816333][   T73] 
[  813.818291][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  813.818291][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  813.818291][   T73]      ipv6_find_idev+0x102/0x170
[  813.818291][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  813.818291][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  813.818291][   T73]      netlink_rcv_skb+0x130/0x360
[  813.818291][   T73]      netlink_unicast+0x449/0x710
[  813.818291][   T73]      netlink_sendmsg+0x723/0xbe0
[  813.818291][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  813.818291][   T73]      ___sys_sendmsg+0xee/0x170
[  813.818291][   T73]      __sys_sendmsg+0xcd/0x170
[  813.818291][   T73]      do_syscall_64+0xc6/0x1e0
[  813.818291][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  813.818291][   T73] 
[  813.819833][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  813.819833][   T73]      neigh_parms_alloc+0x1e5/0x510
[  813.819833][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  813.819833][   T73]      ipv6_find_idev+0x102/0x170
[  813.819833][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  813.819833][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  813.819833][   T73]      netlink_rcv_skb+0x130/0x360
[  813.819833][   T73]      netlink_unicast+0x449/0x710
[  813.819833][   T73]      netlink_sendmsg+0x723/0xbe0
[  813.819833][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  813.819833][   T73]      ___sys_sendmsg+0xee/0x170
[  813.819833][   T73]      __sys_sendmsg+0xcd/0x170
[  813.819833][   T73]      do_syscall_64+0xc6/0x1e0
[  813.819833][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  813.819833][   T73] 
[  813.821673][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  813.821968][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  813.821968][   T73]      netdev_get_by_index+0x5e/0x80
[  813.821968][   T73]      fib6_nh_init+0x3d8/0x1580
[  813.821968][   T73]      ip6_route_info_create+0xf18/0x17d0
[  813.821968][   T73]      addrconf_f6i_alloc+0x265/0x560
[  813.821968][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  813.821968][   T73]      addrconf_join_anycast+0x1c0/0x220
[  813.821968][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  813.821968][   T73]      addrconf_dad_completed+0x12b/0xe20
[  813.821968][   T73]      addrconf_dad_begin+0x310/0x670
[  813.821968][   T73]      addrconf_dad_work+0x10b/0xab0
[  813.821968][   T73]      process_one_work+0x84d/0x18a0
[  813.821968][   T73]      worker_thread+0x587/0xd30
[  813.821968][   T73]      kthread+0x28a/0x350
[  813.821968][   T73]      ret_from_fork+0x31/0x70
[  813.821968][   T73]      ret_from_fork_asm+0x1a/0x30
[  813.821968][   T73] 
[  813.823877][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  813.823877][   T73]      netdev_get_by_index+0x5e/0x80
[  813.823877][   T73]      fib6_nh_init+0x3d8/0x1580
[  813.823877][   T73]      ip6_route_info_create+0xf18/0x17d0
[  813.823877][   T73]      ip6_route_add+0x1c/0x140
[  813.823877][   T73]      addrconf_prefix_route+0x2a6/0x430
[  813.823877][   T73]      inet6_addr_add+0x4f8/0xa40
[  813.823877][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  813.823877][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  813.823877][   T73]      netlink_rcv_skb+0x130/0x360
[  813.823877][   T73]      netlink_unicast+0x449/0x710
[  813.823877][   T73]      netlink_sendmsg+0x723/0xbe0
[  813.823877][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  813.823877][   T73]      ___sys_sendmsg+0xee/0x170
[  813.823877][   T73]      __sys_sendmsg+0xcd/0x170
[  813.823877][   T73]      do_syscall_64+0xc6/0x1e0
[  813.823877][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  813.823877][   T73] 
[  813.825862][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  813.825862][   T73]      netdev_get_by_index+0x5e/0x80
[  813.825862][   T73]      fib6_nh_init+0x3d8/0x1580
[  813.825862][   T73]      ip6_route_info_create+0xf18/0x17d0
[  813.825862][   T73]      addrconf_f6i_alloc+0x315/0x560
[  813.825862][   T73]      ipv6_add_addr+0x411/0x2000
[  813.825862][   T73]      inet6_addr_add+0x30e/0xa40
[  813.825862][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  813.825862][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  813.825862][   T73]      netlink_rcv_skb+0x130/0x360
[  813.825862][   T73]      netlink_unicast+0x449/0x710
[  813.825862][   T73]      netlink_sendmsg+0x723/0xbe0
[  813.825862][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  813.825862][   T73]      ___sys_sendmsg+0xee/0x170
[  813.825862][   T73]      __sys_sendmsg+0xcd/0x170
[  813.825862][   T73]      do_syscall_64+0xc6/0x1e0
[  813.825862][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  813.825862][   T73] 
[  813.827842][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  813.827842][   T73]      netdev_get_by_index+0x5e/0x80
[  813.827842][   T73]      fib6_nh_init+0x3d8/0x1580
[  813.827842][   T73]      ip6_route_info_create+0xf18/0x17d0
[  813.827842][   T73]      ip6_route_add+0x1c/0x140
[  813.827842][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  813.827842][   T73]      addrconf_add_dev+0xe2/0x170
[  813.827842][   T73]      inet6_addr_add+0x12f/0xa40
[  813.827842][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  813.827842][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  813.827842][   T73]      netlink_rcv_skb+0x130/0x360
[  813.827842][   T73]      netlink_unicast+0x449/0x710
[  813.827842][   T73]      netlink_sendmsg+0x723/0xbe0
[  813.827842][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  813.827842][   T73]      ___sys_sendmsg+0xee/0x170
[  813.827842][   T73]      __sys_sendmsg+0xcd/0x170
[  813.827842][   T73]      do_syscall_64+0xc6/0x1e0
[  813.827842][   T73] 
[  813.829853][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  813.829853][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  813.829853][   T73]      ipv6_find_idev+0x102/0x170
[  813.829853][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  813.829853][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  813.829853][   T73]      netlink_rcv_skb+0x130/0x360
[  813.829853][   T73]      netlink_unicast+0x449/0x710
[  813.829853][   T73]      netlink_sendmsg+0x723/0xbe0
[  813.829853][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  813.829853][   T73]      ___sys_sendmsg+0xee/0x170
[  813.829853][   T73]      __sys_sendmsg+0xcd/0x170
[  813.829853][   T73]      do_syscall_64+0xc6/0x1e0
[  813.829853][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  813.829853][   T73] 
[  813.831394][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  813.831394][   T73]      neigh_parms_alloc+0x1e5/0x510
[  813.831394][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  813.831394][   T73]      ipv6_find_idev+0x102/0x170
[  813.831394][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  813.831394][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  813.831394][   T73]      netlink_rcv_skb+0x130/0x360
[  813.831394][   T73]      netlink_unicast+0x449/0x710
[  813.831394][   T73]      netlink_sendmsg+0x723/0xbe0
[  813.831394][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  813.831394][   T73]      ___sys_sendmsg+0xee/0x170
[  813.831394][   T73]      __sys_sendmsg+0xcd/0x170
[  813.831394][   T73]      do_syscall_64+0xc6/0x1e0
[  813.831394][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  813.831394][   T73] 
[  813.833076][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  813.833351][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  813.833351][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  813.833351][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  813.833351][   T73]      fib6_nh_init+0xa22/0x1580
[  813.833351][   T73]      ip6_route_info_create+0xf18/0x17d0
[  813.833351][   T73]      ip6_route_add+0x1c/0x140
[  813.833351][   T73]      inet6_rtm_newroute+0x104/0x110
[  813.833351][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  813.833351][   T73]      netlink_rcv_skb+0x130/0x360
[  813.833351][   T73]      netlink_unicast+0x449/0x710
[  813.833351][   T73]      netlink_sendmsg+0x723/0xbe0
[  813.833351][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  813.833351][   T73]      ___sys_sendmsg+0xee/0x170
[  813.833351][   T73]      __sys_sendmsg+0xcd/0x170
[  813.833351][   T73]      do_syscall_64+0xc6/0x1e0
[  813.833351][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  813.833351][   T73] 
[  813.835410][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  813.835410][   T73]      dst_init+0x84/0x4a0
[  813.835410][   T73]      dst_alloc+0x97/0x150
[  813.835410][   T73]      ip6_dst_alloc+0x23/0x90
[  813.835410][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  813.835410][   T73]      ip6_pol_route+0x56f/0x840
[  813.835410][   T73]      fib6_rule_lookup+0x456/0x630
[  813.835410][   T73]      ip6_route_input+0x59c/0xa50
[  813.835410][   T73]      ipv6_rcv+0x397/0x810
[  813.835410][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  813.835410][   T73]      process_backlog+0x101/0x620
[  813.835410][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  813.835410][   T73]      net_rx_action+0x495/0xbe0
[  813.835410][   T73]      __do_softirq+0x1b5/0x7f6
[  813.835410][   T73] 
[  813.837303][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  813.837303][   T73]      netdev_get_by_index+0x5e/0x80
[  813.837303][   T73]      fib6_nh_init+0x3d8/0x1580
[  813.837303][   T73]      ip6_route_info_create+0xf18/0x17d0
[  813.837303][   T73]      ip6_route_add+0x1c/0x140
[  813.837303][   T73]      addrconf_prefix_route+0x2a6/0x430
[  813.837303][   T73]      inet6_addr_add+0x4f8/0xa40
[  813.837303][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  813.837303][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  813.837303][   T73]      netlink_rcv_skb+0x130/0x360
[  813.837303][   T73]      netlink_unicast+0x449/0x710
[  813.837303][   T73]      netlink_sendmsg+0x723/0xbe0
[  813.837303][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  813.837303][   T73]      ___sys_sendmsg+0xee/0x170
[  813.837303][   T73]      __sys_sendmsg+0xcd/0x170
[  813.837303][   T73]      do_syscall_64+0xc6/0x1e0
[  813.837303][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  813.837303][   T73] 
[  813.839737][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  813.839737][   T73]      netdev_get_by_index+0x5e/0x80
[  813.839737][   T73]      fib6_nh_init+0x3d8/0x1580
[  813.839737][   T73]      ip6_route_info_create+0xf18/0x17d0
[  813.839737][   T73]      addrconf_f6i_alloc+0x315/0x560
[  813.839737][   T73]      ipv6_add_addr+0x411/0x2000
[  813.839737][   T73]      inet6_addr_add+0x30e/0xa40
[  813.839737][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  813.839737][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  813.839737][   T73]      netlink_rcv_skb+0x130/0x360
[  813.839737][   T73]      netlink_unicast+0x449/0x710
[  813.839737][   T73]      netlink_sendmsg+0x723/0xbe0
[  813.839737][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  813.839737][   T73]      ___sys_sendmsg+0xee/0x170
[  813.839737][   T73]      __sys_sendmsg+0xcd/0x170
[  813.839737][   T73]      do_syscall_64+0xc6/0x1e0
[  813.839737][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  813.839737][   T73] 
[  813.842201][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  813.842201][   T73]      netdev_get_by_index+0x5e/0x80
[  813.842201][   T73]      fib6_nh_init+0x3d8/0x1580
[  813.842201][   T73]      ip6_route_info_create+0xf18/0x17d0
[  813.842201][   T73]      ip6_route_add+0x1c/0x140
[  813.842201][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  813.842201][   T73]      addrconf_add_dev+0xe2/0x170
[  813.842201][   T73]      inet6_addr_add+0x12f/0xa40
[  813.842201][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  813.842201][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  813.842201][   T73]      netlink_rcv_skb+0x130/0x360
[  813.842201][   T73]      netlink_unicast+0x449/0x710
[  813.842201][   T73]      netlink_sendmsg+0x723/0xbe0
[  813.842201][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  813.842201][   T73]      ___sys_sendmsg+0xee/0x170
[  813.842201][   T73]      __sys_sendmsg+0xcd/0x170
[  813.842201][   T73]      do_syscall_64+0xc6/0x1e0
[  813.842201][   T73] 
[  813.844539][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  813.844539][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  813.844539][   T73]      ipv6_find_idev+0x102/0x170
[  813.844539][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  813.844539][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  813.844539][   T73]      netlink_rcv_skb+0x130/0x360
[  813.844539][   T73]      netlink_unicast+0x449/0x710
[  813.844539][   T73]      netlink_sendmsg+0x723/0xbe0
[  813.844539][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  813.844539][   T73]      ___sys_sendmsg+0xee/0x170
[  813.844539][   T73]      __sys_sendmsg+0xcd/0x170
[  813.844539][   T73]      do_syscall_64+0xc6/0x1e0
[  813.844539][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  813.844539][   T73] 
[  813.846406][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  813.846406][   T73]      neigh_parms_alloc+0x1e5/0x510
[  813.846406][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  813.846406][   T73]      ipv6_find_idev+0x102/0x170
[  813.846406][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  813.846406][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  813.846406][   T73]      netlink_rcv_skb+0x130/0x360
[  813.846406][   T73]      netlink_unicast+0x449/0x710
[  813.846406][   T73]      netlink_sendmsg+0x723/0xbe0
[  813.846406][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  813.846406][   T73]      ___sys_sendmsg+0xee/0x170
[  813.846406][   T73]      __sys_sendmsg+0xcd/0x170
[  813.846406][   T73]      do_syscall_64+0xc6/0x1e0
[  813.846406][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  813.846406][   T73] 
[  813.848439][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  813.849237][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  813.849237][   T73]      netdev_get_by_index+0x5e/0x80
[  813.849237][   T73]      fib6_nh_init+0x3d8/0x1580
[  813.849237][   T73]      ip6_route_info_create+0xf18/0x17d0
[  813.849237][   T73]      addrconf_f6i_alloc+0x265/0x560
[  813.849237][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  813.849237][   T73]      addrconf_join_anycast+0x1c0/0x220
[  813.849237][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  813.849237][   T73]      addrconf_dad_completed+0x12b/0xe20
[  813.849237][   T73]      addrconf_dad_begin+0x310/0x670
[  813.849237][   T73]      addrconf_dad_work+0x10b/0xab0
[  813.849237][   T73]      process_one_work+0x84d/0x18a0
[  813.849237][   T73]      worker_thread+0x587/0xd30
[  813.849237][   T73]      kthread+0x28a/0x350
[  813.849237][   T73]      ret_from_fork+0x31/0x70
[  813.849237][   T73]      ret_from_fork_asm+0x1a/0x30
[  813.849237][   T73] 
[  813.851344][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  813.851344][   T73]      netdev_get_by_index+0x5e/0x80
[  813.851344][   T73]      fib6_nh_init+0x3d8/0x1580
[  813.851344][   T73]      ip6_route_info_create+0xf18/0x17d0
[  813.851344][   T73]      ip6_route_add+0x1c/0x140
[  813.851344][   T73]      addrconf_prefix_route+0x2a6/0x430
[  813.851344][   T73]      inet6_addr_add+0x4f8/0xa40
[  813.851344][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  813.851344][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  813.851344][   T73]      netlink_rcv_skb+0x130/0x360
[  813.851344][   T73]      netlink_unicast+0x449/0x710
[  813.851344][   T73]      netlink_sendmsg+0x723/0xbe0
[  813.851344][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  813.851344][   T73]      ___sys_sendmsg+0xee/0x170
[  813.851344][   T73]      __sys_sendmsg+0xcd/0x170
[  813.851344][   T73]      do_syscall_64+0xc6/0x1e0
[  813.851344][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  813.851344][   T73] 
[  813.853599][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  813.853599][   T73]      netdev_get_by_index+0x5e/0x80
[  813.853599][   T73]      fib6_nh_init+0x3d8/0x1580
[  813.853599][   T73]      ip6_route_info_create+0xf18/0x17d0
[  813.853599][   T73]      addrconf_f6i_alloc+0x315/0x560
[  813.853599][   T73]      ipv6_add_addr+0x411/0x2000
[  813.853599][   T73]      inet6_addr_add+0x30e/0xa40
[  813.853599][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  813.853599][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  813.853599][   T73]      netlink_rcv_skb+0x130/0x360
[  813.853599][   T73]      netlink_unicast+0x449/0x710
[  813.853599][   T73]      netlink_sendmsg+0x723/0xbe0
[  813.853599][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  813.853599][   T73]      ___sys_sendmsg+0xee/0x170
[  813.853599][   T73]      __sys_sendmsg+0xcd/0x170
[  813.853599][   T73]      do_syscall_64+0xc6/0x1e0
[  813.853599][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  813.853599][   T73] 
[  813.856106][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  813.856106][   T73]      netdev_get_by_index+0x5e/0x80
[  813.856106][   T73]      fib6_nh_init+0x3d8/0x1580
[  813.856106][   T73]      ip6_route_info_create+0xf18/0x17d0
[  813.856106][   T73]      ip6_route_add+0x1c/0x140
[  813.856106][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  813.856106][   T73]      addrconf_add_dev+0xe2/0x170
[  813.856106][   T73]      inet6_addr_add+0x12f/0xa40
[  813.856106][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  813.856106][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  813.856106][   T73]      netlink_rcv_skb+0x130/0x360
[  813.856106][   T73]      netlink_unicast+0x449/0x710
[  813.856106][   T73]      netlink_sendmsg+0x723/0xbe0
[  813.856106][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  813.856106][   T73]      ___sys_sendmsg+0xee/0x170
[  813.856106][   T73]      __sys_sendmsg+0xcd/0x170
[  813.856106][   T73]      do_syscall_64+0xc6/0x1e0
[  813.856106][   T73] 
[  813.858445][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  813.858445][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  813.858445][   T73]      ipv6_find_idev+0x102/0x170
[  813.858445][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  813.858445][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  813.858445][   T73]      netlink_rcv_skb+0x130/0x360
[  813.858445][   T73]      netlink_unicast+0x449/0x710
[  813.858445][   T73]      netlink_sendmsg+0x723/0xbe0
[  813.858445][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  813.858445][   T73]      ___sys_sendmsg+0xee/0x170
[  813.858445][   T73]      __sys_sendmsg+0xcd/0x170
[  813.858445][   T73]      do_syscall_64+0xc6/0x1e0
[  813.858445][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  813.858445][   T73] 
[  813.860164][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  813.860164][   T73]      neigh_parms_alloc+0x1e5/0x510
[  813.860164][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  813.860164][   T73]      ipv6_find_idev+0x102/0x170
[  813.860164][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  813.860164][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  813.860164][   T73]      netlink_rcv_skb+0x130/0x360
[  813.860164][   T73]      netlink_unicast+0x449/0x710
[  813.860164][   T73]      netlink_sendmsg+0x723/0xbe0
[  813.860164][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  813.860164][   T73]      ___sys_sendmsg+0xee/0x170
[  813.860164][   T73]      __sys_sendmsg+0xcd/0x170
[  813.860164][   T73]      do_syscall_64+0xc6/0x1e0
[  813.860164][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  813.860164][   T73] 
[  824.007725][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  824.008182][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  824.008182][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  824.008182][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  824.008182][   T73]      fib6_nh_init+0xa22/0x1580
[  824.008182][   T73]      ip6_route_info_create+0xf18/0x17d0
[  824.008182][   T73]      ip6_route_add+0x1c/0x140
[  824.008182][   T73]      inet6_rtm_newroute+0x104/0x110
[  824.008182][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  824.008182][   T73]      netlink_rcv_skb+0x130/0x360
[  824.008182][   T73]      netlink_unicast+0x449/0x710
[  824.008182][   T73]      netlink_sendmsg+0x723/0xbe0
[  824.008182][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  824.008182][   T73]      ___sys_sendmsg+0xee/0x170
[  824.008182][   T73]      __sys_sendmsg+0xcd/0x170
[  824.008182][   T73]      do_syscall_64+0xc6/0x1e0
[  824.008182][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  824.008182][   T73] 
[  824.010063][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  824.010063][   T73]      dst_init+0x84/0x4a0
[  824.010063][   T73]      dst_alloc+0x97/0x150
[  824.010063][   T73]      ip6_dst_alloc+0x23/0x90
[  824.010063][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  824.010063][   T73]      ip6_pol_route+0x56f/0x840
[  824.010063][   T73]      fib6_rule_lookup+0x456/0x630
[  824.010063][   T73]      ip6_route_input+0x59c/0xa50
[  824.010063][   T73]      ipv6_rcv+0x397/0x810
[  824.010063][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  824.010063][   T73]      process_backlog+0x101/0x620
[  824.010063][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  824.010063][   T73]      net_rx_action+0x495/0xbe0
[  824.010063][   T73]      __do_softirq+0x1b5/0x7f6
[  824.010063][   T73] 
[  824.011707][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  824.011707][   T73]      netdev_get_by_index+0x5e/0x80
[  824.011707][   T73]      fib6_nh_init+0x3d8/0x1580
[  824.011707][   T73]      ip6_route_info_create+0xf18/0x17d0
[  824.011707][   T73]      ip6_route_add+0x1c/0x140
[  824.011707][   T73]      addrconf_prefix_route+0x2a6/0x430
[  824.011707][   T73]      inet6_addr_add+0x4f8/0xa40
[  824.011707][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  824.011707][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  824.011707][   T73]      netlink_rcv_skb+0x130/0x360
[  824.011707][   T73]      netlink_unicast+0x449/0x710
[  824.011707][   T73]      netlink_sendmsg+0x723/0xbe0
[  824.011707][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  824.011707][   T73]      ___sys_sendmsg+0xee/0x170
[  824.011707][   T73]      __sys_sendmsg+0xcd/0x170
[  824.011707][   T73]      do_syscall_64+0xc6/0x1e0
[  824.011707][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  824.011707][   T73] 
[  824.013691][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  824.013691][   T73]      netdev_get_by_index+0x5e/0x80
[  824.013691][   T73]      fib6_nh_init+0x3d8/0x1580
[  824.013691][   T73]      ip6_route_info_create+0xf18/0x17d0
[  824.013691][   T73]      addrconf_f6i_alloc+0x315/0x560
[  824.013691][   T73]      ipv6_add_addr+0x411/0x2000
[  824.013691][   T73]      inet6_addr_add+0x30e/0xa40
[  824.013691][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  824.013691][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  824.013691][   T73]      netlink_rcv_skb+0x130/0x360
[  824.013691][   T73]      netlink_unicast+0x449/0x710
[  824.013691][   T73]      netlink_sendmsg+0x723/0xbe0
[  824.013691][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  824.013691][   T73]      ___sys_sendmsg+0xee/0x170
[  824.013691][   T73]      __sys_sendmsg+0xcd/0x170
[  824.013691][   T73]      do_syscall_64+0xc6/0x1e0
[  824.013691][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  824.013691][   T73] 
[  824.015674][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  824.015674][   T73]      netdev_get_by_index+0x5e/0x80
[  824.015674][   T73]      fib6_nh_init+0x3d8/0x1580
[  824.015674][   T73]      ip6_route_info_create+0xf18/0x17d0
[  824.015674][   T73]      ip6_route_add+0x1c/0x140
[  824.015674][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  824.015674][   T73]      addrconf_add_dev+0xe2/0x170
[  824.015674][   T73]      inet6_addr_add+0x12f/0xa40
[  824.015674][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  824.015674][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  824.015674][   T73]      netlink_rcv_skb+0x130/0x360
[  824.015674][   T73]      netlink_unicast+0x449/0x710
[  824.015674][   T73]      netlink_sendmsg+0x723/0xbe0
[  824.015674][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  824.015674][   T73]      ___sys_sendmsg+0xee/0x170
[  824.015674][   T73]      __sys_sendmsg+0xcd/0x170
[  824.015674][   T73]      do_syscall_64+0xc6/0x1e0
[  824.015674][   T73] 
[  824.017624][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  824.017624][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  824.017624][   T73]      ipv6_find_idev+0x102/0x170
[  824.017624][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  824.017624][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  824.017624][   T73]      netlink_rcv_skb+0x130/0x360
[  824.017624][   T73]      netlink_unicast+0x449/0x710
[  824.017624][   T73]      netlink_sendmsg+0x723/0xbe0
[  824.017624][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  824.017624][   T73]      ___sys_sendmsg+0xee/0x170
[  824.017624][   T73]      __sys_sendmsg+0xcd/0x170
[  824.017624][   T73]      do_syscall_64+0xc6/0x1e0
[  824.017624][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  824.017624][   T73] 
[  824.019153][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  824.019153][   T73]      neigh_parms_alloc+0x1e5/0x510
[  824.019153][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  824.019153][   T73]      ipv6_find_idev+0x102/0x170
[  824.019153][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  824.019153][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  824.019153][   T73]      netlink_rcv_skb+0x130/0x360
[  824.019153][   T73]      netlink_unicast+0x449/0x710
[  824.019153][   T73]      netlink_sendmsg+0x723/0xbe0
[  824.019153][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  824.019153][   T73]      ___sys_sendmsg+0xee/0x170
[  824.019153][   T73]      __sys_sendmsg+0xcd/0x170
[  824.019153][   T73]      do_syscall_64+0xc6/0x1e0
[  824.019153][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  824.019153][   T73] 
[  824.020835][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  824.021111][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  824.021111][   T73]      netdev_get_by_index+0x5e/0x80
[  824.021111][   T73]      fib6_nh_init+0x3d8/0x1580
[  824.021111][   T73]      ip6_route_info_create+0xf18/0x17d0
[  824.021111][   T73]      addrconf_f6i_alloc+0x265/0x560
[  824.021111][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  824.021111][   T73]      addrconf_join_anycast+0x1c0/0x220
[  824.021111][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  824.021111][   T73]      addrconf_dad_completed+0x12b/0xe20
[  824.021111][   T73]      addrconf_dad_begin+0x310/0x670
[  824.021111][   T73]      addrconf_dad_work+0x10b/0xab0
[  824.021111][   T73]      process_one_work+0x84d/0x18a0
[  824.021111][   T73]      worker_thread+0x587/0xd30
[  824.021111][   T73]      kthread+0x28a/0x350
[  824.021111][   T73]      ret_from_fork+0x31/0x70
[  824.021111][   T73]      ret_from_fork_asm+0x1a/0x30
[  824.021111][   T73] 
[  824.023014][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  824.023014][   T73]      netdev_get_by_index+0x5e/0x80
[  824.023014][   T73]      fib6_nh_init+0x3d8/0x1580
[  824.023014][   T73]      ip6_route_info_create+0xf18/0x17d0
[  824.023014][   T73]      ip6_route_add+0x1c/0x140
[  824.023014][   T73]      addrconf_prefix_route+0x2a6/0x430
[  824.023014][   T73]      inet6_addr_add+0x4f8/0xa40
[  824.023014][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  824.023014][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  824.023014][   T73]      netlink_rcv_skb+0x130/0x360
[  824.023014][   T73]      netlink_unicast+0x449/0x710
[  824.023014][   T73]      netlink_sendmsg+0x723/0xbe0
[  824.023014][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  824.023014][   T73]      ___sys_sendmsg+0xee/0x170
[  824.023014][   T73]      __sys_sendmsg+0xcd/0x170
[  824.023014][   T73]      do_syscall_64+0xc6/0x1e0
[  824.023014][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  824.023014][   T73] 
[  824.025021][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  824.025021][   T73]      netdev_get_by_index+0x5e/0x80
[  824.025021][   T73]      fib6_nh_init+0x3d8/0x1580
[  824.025021][   T73]      ip6_route_info_create+0xf18/0x17d0
[  824.025021][   T73]      addrconf_f6i_alloc+0x315/0x560
[  824.025021][   T73]      ipv6_add_addr+0x411/0x2000
[  824.025021][   T73]      inet6_addr_add+0x30e/0xa40
[  824.025021][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  824.025021][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  824.025021][   T73]      netlink_rcv_skb+0x130/0x360
[  824.025021][   T73]      netlink_unicast+0x449/0x710
[  824.025021][   T73]      netlink_sendmsg+0x723/0xbe0
[  824.025021][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  824.025021][   T73]      ___sys_sendmsg+0xee/0x170
[  824.025021][   T73]      __sys_sendmsg+0xcd/0x170
[  824.025021][   T73]      do_syscall_64+0xc6/0x1e0
[  824.025021][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  824.025021][   T73] 
[  824.027015][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  824.027015][   T73]      netdev_get_by_index+0x5e/0x80
[  824.027015][   T73]      fib6_nh_init+0x3d8/0x1580
[  824.027015][   T73]      ip6_route_info_create+0xf18/0x17d0
[  824.027015][   T73]      ip6_route_add+0x1c/0x140
[  824.027015][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  824.027015][   T73]      addrconf_add_dev+0xe2/0x170
[  824.027015][   T73]      inet6_addr_add+0x12f/0xa40
[  824.027015][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  824.027015][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  824.027015][   T73]      netlink_rcv_skb+0x130/0x360
[  824.027015][   T73]      netlink_unicast+0x449/0x710
[  824.027015][   T73]      netlink_sendmsg+0x723/0xbe0
[  824.027015][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  824.027015][   T73]      ___sys_sendmsg+0xee/0x170
[  824.027015][   T73]      __sys_sendmsg+0xcd/0x170
[  824.027015][   T73]      do_syscall_64+0xc6/0x1e0
[  824.027015][   T73] 
[  824.028989][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  824.028989][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  824.028989][   T73]      ipv6_find_idev+0x102/0x170
[  824.028989][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  824.028989][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  824.028989][   T73]      netlink_rcv_skb+0x130/0x360
[  824.028989][   T73]      netlink_unicast+0x449/0x710
[  824.028989][   T73]      netlink_sendmsg+0x723/0xbe0
[  824.028989][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  824.028989][   T73]      ___sys_sendmsg+0xee/0x170
[  824.028989][   T73]      __sys_sendmsg+0xcd/0x170
[  824.028989][   T73]      do_syscall_64+0xc6/0x1e0
[  824.028989][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  824.028989][   T73] 
[  824.030524][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  824.030524][   T73]      neigh_parms_alloc+0x1e5/0x510
[  824.030524][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  824.030524][   T73]      ipv6_find_idev+0x102/0x170
[  824.030524][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  824.030524][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  824.030524][   T73]      netlink_rcv_skb+0x130/0x360
[  824.030524][   T73]      netlink_unicast+0x449/0x710
[  824.030524][   T73]      netlink_sendmsg+0x723/0xbe0
[  824.030524][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  824.030524][   T73]      ___sys_sendmsg+0xee/0x170
[  824.030524][   T73]      __sys_sendmsg+0xcd/0x170
[  824.030524][   T73]      do_syscall_64+0xc6/0x1e0
[  824.030524][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  824.030524][   T73] 
[  824.032250][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  824.032519][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  824.032519][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  824.032519][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  824.032519][   T73]      fib6_nh_init+0xa22/0x1580
[  824.032519][   T73]      ip6_route_info_create+0xf18/0x17d0
[  824.032519][   T73]      ip6_route_add+0x1c/0x140
[  824.032519][   T73]      inet6_rtm_newroute+0x104/0x110
[  824.032519][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  824.032519][   T73]      netlink_rcv_skb+0x130/0x360
[  824.032519][   T73]      netlink_unicast+0x449/0x710
[  824.032519][   T73]      netlink_sendmsg+0x723/0xbe0
[  824.032519][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  824.032519][   T73]      ___sys_sendmsg+0xee/0x170
[  824.032519][   T73]      __sys_sendmsg+0xcd/0x170
[  824.032519][   T73]      do_syscall_64+0xc6/0x1e0
[  824.032519][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  824.032519][   T73] 
[  824.034573][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  824.034573][   T73]      dst_init+0x84/0x4a0
[  824.034573][   T73]      dst_alloc+0x97/0x150
[  824.034573][   T73]      ip6_dst_alloc+0x23/0x90
[  824.034573][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  824.034573][   T73]      ip6_pol_route+0x56f/0x840
[  824.034573][   T73]      fib6_rule_lookup+0x456/0x630
[  824.034573][   T73]      ip6_route_input+0x59c/0xa50
[  824.034573][   T73]      ipv6_rcv+0x397/0x810
[  824.034573][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  824.034573][   T73]      process_backlog+0x101/0x620
[  824.034573][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  824.034573][   T73]      net_rx_action+0x495/0xbe0
[  824.034573][   T73]      __do_softirq+0x1b5/0x7f6
[  824.034573][   T73] 
[  824.036383][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  824.036383][   T73]      netdev_get_by_index+0x5e/0x80
[  824.036383][   T73]      fib6_nh_init+0x3d8/0x1580
[  824.036383][   T73]      ip6_route_info_create+0xf18/0x17d0
[  824.036383][   T73]      ip6_route_add+0x1c/0x140
[  824.036383][   T73]      addrconf_prefix_route+0x2a6/0x430
[  824.036383][   T73]      inet6_addr_add+0x4f8/0xa40
[  824.036383][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  824.036383][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  824.036383][   T73]      netlink_rcv_skb+0x130/0x360
[  824.036383][   T73]      netlink_unicast+0x449/0x710
[  824.036383][   T73]      netlink_sendmsg+0x723/0xbe0
[  824.036383][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  824.036383][   T73]      ___sys_sendmsg+0xee/0x170
[  824.036383][   T73]      __sys_sendmsg+0xcd/0x170
[  824.036383][   T73]      do_syscall_64+0xc6/0x1e0
[  824.036383][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  824.036383][   T73] 
[  824.038671][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  824.038671][   T73]      netdev_get_by_index+0x5e/0x80
[  824.038671][   T73]      fib6_nh_init+0x3d8/0x1580
[  824.038671][   T73]      ip6_route_info_create+0xf18/0x17d0
[  824.038671][   T73]      addrconf_f6i_alloc+0x315/0x560
[  824.038671][   T73]      ipv6_add_addr+0x411/0x2000
[  824.038671][   T73]      inet6_addr_add+0x30e/0xa40
[  824.038671][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  824.038671][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  824.038671][   T73]      netlink_rcv_skb+0x130/0x360
[  824.038671][   T73]      netlink_unicast+0x449/0x710
[  824.038671][   T73]      netlink_sendmsg+0x723/0xbe0
[  824.038671][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  824.038671][   T73]      ___sys_sendmsg+0xee/0x170
[  824.038671][   T73]      __sys_sendmsg+0xcd/0x170
[  824.038671][   T73]      do_syscall_64+0xc6/0x1e0
[  824.038671][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  824.038671][   T73] 
[  824.040832][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  824.040832][   T73]      netdev_get_by_index+0x5e/0x80
[  824.040832][   T73]      fib6_nh_init+0x3d8/0x1580
[  824.040832][   T73]      ip6_route_info_create+0xf18/0x17d0
[  824.040832][   T73]      ip6_route_add+0x1c/0x140
[  824.040832][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  824.040832][   T73]      addrconf_add_dev+0xe2/0x170
[  824.040832][   T73]      inet6_addr_add+0x12f/0xa40
[  824.040832][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  824.040832][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  824.040832][   T73]      netlink_rcv_skb+0x130/0x360
[  824.040832][   T73]      netlink_unicast+0x449/0x710
[  824.040832][   T73]      netlink_sendmsg+0x723/0xbe0
[  824.040832][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  824.040832][   T73]      ___sys_sendmsg+0xee/0x170
[  824.040832][   T73]      __sys_sendmsg+0xcd/0x170
[  824.040832][   T73]      do_syscall_64+0xc6/0x1e0
[  824.040832][   T73] 
[  824.043038][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  824.043038][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  824.043038][   T73]      ipv6_find_idev+0x102/0x170
[  824.043038][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  824.043038][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  824.043038][   T73]      netlink_rcv_skb+0x130/0x360
[  824.043038][   T73]      netlink_unicast+0x449/0x710
[  824.043038][   T73]      netlink_sendmsg+0x723/0xbe0
[  824.043038][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  824.043038][   T73]      ___sys_sendmsg+0xee/0x170
[  824.043038][   T73]      __sys_sendmsg+0xcd/0x170
[  824.043038][   T73]      do_syscall_64+0xc6/0x1e0
[  824.043038][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  824.043038][   T73] 
[  824.044751][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  824.044751][   T73]      neigh_parms_alloc+0x1e5/0x510
[  824.044751][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  824.044751][   T73]      ipv6_find_idev+0x102/0x170
[  824.044751][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  824.044751][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  824.044751][   T73]      netlink_rcv_skb+0x130/0x360
[  824.044751][   T73]      netlink_unicast+0x449/0x710
[  824.044751][   T73]      netlink_sendmsg+0x723/0xbe0
[  824.044751][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  824.044751][   T73]      ___sys_sendmsg+0xee/0x170
[  824.044751][   T73]      __sys_sendmsg+0xcd/0x170
[  824.044751][   T73]      do_syscall_64+0xc6/0x1e0
[  824.044751][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  824.044751][   T73] 
[  824.046668][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  824.046996][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  824.046996][   T73]      netdev_get_by_index+0x5e/0x80
[  824.046996][   T73]      fib6_nh_init+0x3d8/0x1580
[  824.046996][   T73]      ip6_route_info_create+0xf18/0x17d0
[  824.046996][   T73]      addrconf_f6i_alloc+0x265/0x560
[  824.046996][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  824.046996][   T73]      addrconf_join_anycast+0x1c0/0x220
[  824.046996][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  824.046996][   T73]      addrconf_dad_completed+0x12b/0xe20
[  824.046996][   T73]      addrconf_dad_begin+0x310/0x670
[  824.046996][   T73]      addrconf_dad_work+0x10b/0xab0
[  824.046996][   T73]      process_one_work+0x84d/0x18a0
[  824.046996][   T73]      worker_thread+0x587/0xd30
[  824.046996][   T73]      kthread+0x28a/0x350
[  824.046996][   T73]      ret_from_fork+0x31/0x70
[  824.046996][   T73]      ret_from_fork_asm+0x1a/0x30
[  824.046996][   T73] 
[  824.049073][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  824.049073][   T73]      netdev_get_by_index+0x5e/0x80
[  824.049073][   T73]      fib6_nh_init+0x3d8/0x1580
[  824.049073][   T73]      ip6_route_info_create+0xf18/0x17d0
[  824.049073][   T73]      ip6_route_add+0x1c/0x140
[  824.049073][   T73]      addrconf_prefix_route+0x2a6/0x430
[  824.049073][   T73]      inet6_addr_add+0x4f8/0xa40
[  824.049073][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  824.049073][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  824.049073][   T73]      netlink_rcv_skb+0x130/0x360
[  824.049073][   T73]      netlink_unicast+0x449/0x710
[  824.049073][   T73]      netlink_sendmsg+0x723/0xbe0
[  824.049073][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  824.049073][   T73]      ___sys_sendmsg+0xee/0x170
[  824.049073][   T73]      __sys_sendmsg+0xcd/0x170
[  824.049073][   T73]      do_syscall_64+0xc6/0x1e0
[  824.049073][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  824.049073][   T73] 
[  824.051298][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  824.051298][   T73]      netdev_get_by_index+0x5e/0x80
[  824.051298][   T73]      fib6_nh_init+0x3d8/0x1580
[  824.051298][   T73]      ip6_route_info_create+0xf18/0x17d0
[  824.051298][   T73]      addrconf_f6i_alloc+0x315/0x560
[  824.051298][   T73]      ipv6_add_addr+0x411/0x2000
[  824.051298][   T73]      inet6_addr_add+0x30e/0xa40
[  824.051298][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  824.051298][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  824.051298][   T73]      netlink_rcv_skb+0x130/0x360
[  824.051298][   T73]      netlink_unicast+0x449/0x710
[  824.051298][   T73]      netlink_sendmsg+0x723/0xbe0
[  824.051298][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  824.051298][   T73]      ___sys_sendmsg+0xee/0x170
[  824.051298][   T73]      __sys_sendmsg+0xcd/0x170
[  824.051298][   T73]      do_syscall_64+0xc6/0x1e0
[  824.051298][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  824.051298][   T73] 
[  824.053529][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  824.053529][   T73]      netdev_get_by_index+0x5e/0x80
[  824.053529][   T73]      fib6_nh_init+0x3d8/0x1580
[  824.053529][   T73]      ip6_route_info_create+0xf18/0x17d0
[  824.053529][   T73]      ip6_route_add+0x1c/0x140
[  824.053529][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  824.053529][   T73]      addrconf_add_dev+0xe2/0x170
[  824.053529][   T73]      inet6_addr_add+0x12f/0xa40
[  824.053529][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  824.053529][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  824.053529][   T73]      netlink_rcv_skb+0x130/0x360
[  824.053529][   T73]      netlink_unicast+0x449/0x710
[  824.053529][   T73]      netlink_sendmsg+0x723/0xbe0
[  824.053529][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  824.053529][   T73]      ___sys_sendmsg+0xee/0x170
[  824.053529][   T73]      __sys_sendmsg+0xcd/0x170
[  824.053529][   T73]      do_syscall_64+0xc6/0x1e0
[  824.053529][   T73] 
[  824.055787][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  824.055787][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  824.055787][   T73]      ipv6_find_idev+0x102/0x170
[  824.055787][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  824.055787][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  824.055787][   T73]      netlink_rcv_skb+0x130/0x360
[  824.055787][   T73]      netlink_unicast+0x449/0x710
[  824.055787][   T73]      netlink_sendmsg+0x723/0xbe0
[  824.055787][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  824.055787][   T73]      ___sys_sendmsg+0xee/0x170
[  824.055787][   T73]      __sys_sendmsg+0xcd/0x170
[  824.055787][   T73]      do_syscall_64+0xc6/0x1e0
[  824.055787][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  824.055787][   T73] 
[  824.057500][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  824.057500][   T73]      neigh_parms_alloc+0x1e5/0x510
[  824.057500][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  824.057500][   T73]      ipv6_find_idev+0x102/0x170
[  824.057500][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  824.057500][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  824.057500][   T73]      netlink_rcv_skb+0x130/0x360
[  824.057500][   T73]      netlink_unicast+0x449/0x710
[  824.057500][   T73]      netlink_sendmsg+0x723/0xbe0
[  824.057500][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  824.057500][   T73]      ___sys_sendmsg+0xee/0x170
[  824.057500][   T73]      __sys_sendmsg+0xcd/0x170
[  824.057500][   T73]      do_syscall_64+0xc6/0x1e0
[  824.057500][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  824.057500][   T73] 
[  834.311743][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  834.312235][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  834.312235][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  834.312235][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  834.312235][   T73]      fib6_nh_init+0xa22/0x1580
[  834.312235][   T73]      ip6_route_info_create+0xf18/0x17d0
[  834.312235][   T73]      ip6_route_add+0x1c/0x140
[  834.312235][   T73]      inet6_rtm_newroute+0x104/0x110
[  834.312235][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  834.312235][   T73]      netlink_rcv_skb+0x130/0x360
[  834.312235][   T73]      netlink_unicast+0x449/0x710
[  834.312235][   T73]      netlink_sendmsg+0x723/0xbe0
[  834.312235][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  834.312235][   T73]      ___sys_sendmsg+0xee/0x170
[  834.312235][   T73]      __sys_sendmsg+0xcd/0x170
[  834.312235][   T73]      do_syscall_64+0xc6/0x1e0
[  834.312235][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  834.312235][   T73] 
[  834.314282][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  834.314282][   T73]      dst_init+0x84/0x4a0
[  834.314282][   T73]      dst_alloc+0x97/0x150
[  834.314282][   T73]      ip6_dst_alloc+0x23/0x90
[  834.314282][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  834.314282][   T73]      ip6_pol_route+0x56f/0x840
[  834.314282][   T73]      fib6_rule_lookup+0x456/0x630
[  834.314282][   T73]      ip6_route_input+0x59c/0xa50
[  834.314282][   T73]      ipv6_rcv+0x397/0x810
[  834.314282][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  834.314282][   T73]      process_backlog+0x101/0x620
[  834.314282][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  834.314282][   T73]      net_rx_action+0x495/0xbe0
[  834.314282][   T73]      __do_softirq+0x1b5/0x7f6
[  834.314282][   T73] 
[  834.316189][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  834.316189][   T73]      netdev_get_by_index+0x5e/0x80
[  834.316189][   T73]      fib6_nh_init+0x3d8/0x1580
[  834.316189][   T73]      ip6_route_info_create+0xf18/0x17d0
[  834.316189][   T73]      ip6_route_add+0x1c/0x140
[  834.316189][   T73]      addrconf_prefix_route+0x2a6/0x430
[  834.316189][   T73]      inet6_addr_add+0x4f8/0xa40
[  834.316189][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  834.316189][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  834.316189][   T73]      netlink_rcv_skb+0x130/0x360
[  834.316189][   T73]      netlink_unicast+0x449/0x710
[  834.316189][   T73]      netlink_sendmsg+0x723/0xbe0
[  834.316189][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  834.316189][   T73]      ___sys_sendmsg+0xee/0x170
[  834.316189][   T73]      __sys_sendmsg+0xcd/0x170
[  834.316189][   T73]      do_syscall_64+0xc6/0x1e0
[  834.316189][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  834.316189][   T73] 
[  834.318327][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  834.318327][   T73]      netdev_get_by_index+0x5e/0x80
[  834.318327][   T73]      fib6_nh_init+0x3d8/0x1580
[  834.318327][   T73]      ip6_route_info_create+0xf18/0x17d0
[  834.318327][   T73]      addrconf_f6i_alloc+0x315/0x560
[  834.318327][   T73]      ipv6_add_addr+0x411/0x2000
[  834.318327][   T73]      inet6_addr_add+0x30e/0xa40
[  834.318327][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  834.318327][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  834.318327][   T73]      netlink_rcv_skb+0x130/0x360
[  834.318327][   T73]      netlink_unicast+0x449/0x710
[  834.318327][   T73]      netlink_sendmsg+0x723/0xbe0
[  834.318327][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  834.318327][   T73]      ___sys_sendmsg+0xee/0x170
[  834.318327][   T73]      __sys_sendmsg+0xcd/0x170
[  834.318327][   T73]      do_syscall_64+0xc6/0x1e0
[  834.318327][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  834.318327][   T73] 
[  834.320440][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  834.320440][   T73]      netdev_get_by_index+0x5e/0x80
[  834.320440][   T73]      fib6_nh_init+0x3d8/0x1580
[  834.320440][   T73]      ip6_route_info_create+0xf18/0x17d0
[  834.320440][   T73]      ip6_route_add+0x1c/0x140
[  834.320440][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  834.320440][   T73]      addrconf_add_dev+0xe2/0x170
[  834.320440][   T73]      inet6_addr_add+0x12f/0xa40
[  834.320440][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  834.320440][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  834.320440][   T73]      netlink_rcv_skb+0x130/0x360
[  834.320440][   T73]      netlink_unicast+0x449/0x710
[  834.320440][   T73]      netlink_sendmsg+0x723/0xbe0
[  834.320440][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  834.320440][   T73]      ___sys_sendmsg+0xee/0x170
[  834.320440][   T73]      __sys_sendmsg+0xcd/0x170
[  834.320440][   T73]      do_syscall_64+0xc6/0x1e0
[  834.320440][   T73] 
[  834.322521][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  834.322521][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  834.322521][   T73]      ipv6_find_idev+0x102/0x170
[  834.322521][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  834.322521][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  834.322521][   T73]      netlink_rcv_skb+0x130/0x360
[  834.322521][   T73]      netlink_unicast+0x449/0x710
[  834.322521][   T73]      netlink_sendmsg+0x723/0xbe0
[  834.322521][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  834.322521][   T73]      ___sys_sendmsg+0xee/0x170
[  834.322521][   T73]      __sys_sendmsg+0xcd/0x170
[  834.322521][   T73]      do_syscall_64+0xc6/0x1e0
[  834.322521][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  834.322521][   T73] 
[  834.324155][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  834.324155][   T73]      neigh_parms_alloc+0x1e5/0x510
[  834.324155][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  834.324155][   T73]      ipv6_find_idev+0x102/0x170
[  834.324155][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  834.324155][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  834.324155][   T73]      netlink_rcv_skb+0x130/0x360
[  834.324155][   T73]      netlink_unicast+0x449/0x710
[  834.324155][   T73]      netlink_sendmsg+0x723/0xbe0
[  834.324155][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  834.324155][   T73]      ___sys_sendmsg+0xee/0x170
[  834.324155][   T73]      __sys_sendmsg+0xcd/0x170
[  834.324155][   T73]      do_syscall_64+0xc6/0x1e0
[  834.324155][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  834.324155][   T73] 
[  834.326161][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  834.326451][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  834.326451][   T73]      netdev_get_by_index+0x5e/0x80
[  834.326451][   T73]      fib6_nh_init+0x3d8/0x1580
[  834.326451][   T73]      ip6_route_info_create+0xf18/0x17d0
[  834.326451][   T73]      addrconf_f6i_alloc+0x265/0x560
[  834.326451][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  834.326451][   T73]      addrconf_join_anycast+0x1c0/0x220
[  834.326451][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  834.326451][   T73]      addrconf_dad_completed+0x12b/0xe20
[  834.326451][   T73]      addrconf_dad_begin+0x310/0x670
[  834.326451][   T73]      addrconf_dad_work+0x10b/0xab0
[  834.326451][   T73]      process_one_work+0x84d/0x18a0
[  834.326451][   T73]      worker_thread+0x587/0xd30
[  834.326451][   T73]      kthread+0x28a/0x350
[  834.326451][   T73]      ret_from_fork+0x31/0x70
[  834.326451][   T73]      ret_from_fork_asm+0x1a/0x30
[  834.326451][   T73] 
[  834.328468][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  834.328468][   T73]      netdev_get_by_index+0x5e/0x80
[  834.328468][   T73]      fib6_nh_init+0x3d8/0x1580
[  834.328468][   T73]      ip6_route_info_create+0xf18/0x17d0
[  834.328468][   T73]      ip6_route_add+0x1c/0x140
[  834.328468][   T73]      addrconf_prefix_route+0x2a6/0x430
[  834.328468][   T73]      inet6_addr_add+0x4f8/0xa40
[  834.328468][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  834.328468][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  834.328468][   T73]      netlink_rcv_skb+0x130/0x360
[  834.328468][   T73]      netlink_unicast+0x449/0x710
[  834.328468][   T73]      netlink_sendmsg+0x723/0xbe0
[  834.328468][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  834.328468][   T73]      ___sys_sendmsg+0xee/0x170
[  834.328468][   T73]      __sys_sendmsg+0xcd/0x170
[  834.328468][   T73]      do_syscall_64+0xc6/0x1e0
[  834.328468][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  834.328468][   T73] 
[  834.330617][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  834.330617][   T73]      netdev_get_by_index+0x5e/0x80
[  834.330617][   T73]      fib6_nh_init+0x3d8/0x1580
[  834.330617][   T73]      ip6_route_info_create+0xf18/0x17d0
[  834.330617][   T73]      addrconf_f6i_alloc+0x315/0x560
[  834.330617][   T73]      ipv6_add_addr+0x411/0x2000
[  834.330617][   T73]      inet6_addr_add+0x30e/0xa40
[  834.330617][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  834.330617][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  834.330617][   T73]      netlink_rcv_skb+0x130/0x360
[  834.330617][   T73]      netlink_unicast+0x449/0x710
[  834.330617][   T73]      netlink_sendmsg+0x723/0xbe0
[  834.330617][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  834.330617][   T73]      ___sys_sendmsg+0xee/0x170
[  834.330617][   T73]      __sys_sendmsg+0xcd/0x170
[  834.330617][   T73]      do_syscall_64+0xc6/0x1e0
[  834.330617][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  834.330617][   T73] 
[  834.332723][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  834.332723][   T73]      netdev_get_by_index+0x5e/0x80
[  834.332723][   T73]      fib6_nh_init+0x3d8/0x1580
[  834.332723][   T73]      ip6_route_info_create+0xf18/0x17d0
[  834.332723][   T73]      ip6_route_add+0x1c/0x140
[  834.332723][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  834.332723][   T73]      addrconf_add_dev+0xe2/0x170
[  834.332723][   T73]      inet6_addr_add+0x12f/0xa40
[  834.332723][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  834.332723][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  834.332723][   T73]      netlink_rcv_skb+0x130/0x360
[  834.332723][   T73]      netlink_unicast+0x449/0x710
[  834.332723][   T73]      netlink_sendmsg+0x723/0xbe0
[  834.332723][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  834.332723][   T73]      ___sys_sendmsg+0xee/0x170
[  834.332723][   T73]      __sys_sendmsg+0xcd/0x170
[  834.332723][   T73]      do_syscall_64+0xc6/0x1e0
[  834.332723][   T73] 
[  834.334844][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  834.334844][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  834.334844][   T73]      ipv6_find_idev+0x102/0x170
[  834.334844][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  834.334844][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  834.334844][   T73]      netlink_rcv_skb+0x130/0x360
[  834.334844][   T73]      netlink_unicast+0x449/0x710
[  834.334844][   T73]      netlink_sendmsg+0x723/0xbe0
[  834.334844][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  834.334844][   T73]      ___sys_sendmsg+0xee/0x170
[  834.334844][   T73]      __sys_sendmsg+0xcd/0x170
[  834.334844][   T73]      do_syscall_64+0xc6/0x1e0
[  834.334844][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  834.334844][   T73] 
[  834.336468][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  834.336468][   T73]      neigh_parms_alloc+0x1e5/0x510
[  834.336468][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  834.336468][   T73]      ipv6_find_idev+0x102/0x170
[  834.336468][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  834.336468][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  834.336468][   T73]      netlink_rcv_skb+0x130/0x360
[  834.336468][   T73]      netlink_unicast+0x449/0x710
[  834.336468][   T73]      netlink_sendmsg+0x723/0xbe0
[  834.336468][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  834.336468][   T73]      ___sys_sendmsg+0xee/0x170
[  834.336468][   T73]      __sys_sendmsg+0xcd/0x170
[  834.336468][   T73]      do_syscall_64+0xc6/0x1e0
[  834.336468][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  834.336468][   T73] 
[  834.338315][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  834.338600][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  834.338600][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  834.338600][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  834.338600][   T73]      fib6_nh_init+0xa22/0x1580
[  834.338600][   T73]      ip6_route_info_create+0xf18/0x17d0
[  834.338600][   T73]      ip6_route_add+0x1c/0x140
[  834.338600][   T73]      inet6_rtm_newroute+0x104/0x110
[  834.338600][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  834.338600][   T73]      netlink_rcv_skb+0x130/0x360
[  834.338600][   T73]      netlink_unicast+0x449/0x710
[  834.338600][   T73]      netlink_sendmsg+0x723/0xbe0
[  834.338600][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  834.338600][   T73]      ___sys_sendmsg+0xee/0x170
[  834.338600][   T73]      __sys_sendmsg+0xcd/0x170
[  834.338600][   T73]      do_syscall_64+0xc6/0x1e0
[  834.338600][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  834.338600][   T73] 
[  834.340690][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  834.340690][   T73]      dst_init+0x84/0x4a0
[  834.340690][   T73]      dst_alloc+0x97/0x150
[  834.340690][   T73]      ip6_dst_alloc+0x23/0x90
[  834.340690][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  834.340690][   T73]      ip6_pol_route+0x56f/0x840
[  834.340690][   T73]      fib6_rule_lookup+0x456/0x630
[  834.340690][   T73]      ip6_route_input+0x59c/0xa50
[  834.340690][   T73]      ipv6_rcv+0x397/0x810
[  834.340690][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  834.340690][   T73]      process_backlog+0x101/0x620
[  834.340690][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  834.340690][   T73]      net_rx_action+0x495/0xbe0
[  834.340690][   T73]      __do_softirq+0x1b5/0x7f6
[  834.340690][   T73] 
[  834.342593][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  834.342593][   T73]      netdev_get_by_index+0x5e/0x80
[  834.342593][   T73]      fib6_nh_init+0x3d8/0x1580
[  834.342593][   T73]      ip6_route_info_create+0xf18/0x17d0
[  834.342593][   T73]      ip6_route_add+0x1c/0x140
[  834.342593][   T73]      addrconf_prefix_route+0x2a6/0x430
[  834.342593][   T73]      inet6_addr_add+0x4f8/0xa40
[  834.342593][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  834.342593][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  834.342593][   T73]      netlink_rcv_skb+0x130/0x360
[  834.342593][   T73]      netlink_unicast+0x449/0x710
[  834.342593][   T73]      netlink_sendmsg+0x723/0xbe0
[  834.342593][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  834.342593][   T73]      ___sys_sendmsg+0xee/0x170
[  834.342593][   T73]      __sys_sendmsg+0xcd/0x170
[  834.342593][   T73]      do_syscall_64+0xc6/0x1e0
[  834.342593][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  834.342593][   T73] 
[  834.344917][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  834.344917][   T73]      netdev_get_by_index+0x5e/0x80
[  834.344917][   T73]      fib6_nh_init+0x3d8/0x1580
[  834.344917][   T73]      ip6_route_info_create+0xf18/0x17d0
[  834.344917][   T73]      addrconf_f6i_alloc+0x315/0x560
[  834.344917][   T73]      ipv6_add_addr+0x411/0x2000
[  834.344917][   T73]      inet6_addr_add+0x30e/0xa40
[  834.344917][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  834.344917][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  834.344917][   T73]      netlink_rcv_skb+0x130/0x360
[  834.344917][   T73]      netlink_unicast+0x449/0x710
[  834.344917][   T73]      netlink_sendmsg+0x723/0xbe0
[  834.344917][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  834.344917][   T73]      ___sys_sendmsg+0xee/0x170
[  834.344917][   T73]      __sys_sendmsg+0xcd/0x170
[  834.344917][   T73]      do_syscall_64+0xc6/0x1e0
[  834.344917][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  834.344917][   T73] 
[  834.347235][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  834.347235][   T73]      netdev_get_by_index+0x5e/0x80
[  834.347235][   T73]      fib6_nh_init+0x3d8/0x1580
[  834.347235][   T73]      ip6_route_info_create+0xf18/0x17d0
[  834.347235][   T73]      ip6_route_add+0x1c/0x140
[  834.347235][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  834.347235][   T73]      addrconf_add_dev+0xe2/0x170
[  834.347235][   T73]      inet6_addr_add+0x12f/0xa40
[  834.347235][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  834.347235][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  834.347235][   T73]      netlink_rcv_skb+0x130/0x360
[  834.347235][   T73]      netlink_unicast+0x449/0x710
[  834.347235][   T73]      netlink_sendmsg+0x723/0xbe0
[  834.347235][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  834.347235][   T73]      ___sys_sendmsg+0xee/0x170
[  834.347235][   T73]      __sys_sendmsg+0xcd/0x170
[  834.347235][   T73]      do_syscall_64+0xc6/0x1e0
[  834.347235][   T73] 
[  834.349537][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  834.349537][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  834.349537][   T73]      ipv6_find_idev+0x102/0x170
[  834.349537][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  834.349537][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  834.349537][   T73]      netlink_rcv_skb+0x130/0x360
[  834.349537][   T73]      netlink_unicast+0x449/0x710
[  834.349537][   T73]      netlink_sendmsg+0x723/0xbe0
[  834.349537][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  834.349537][   T73]      ___sys_sendmsg+0xee/0x170
[  834.349537][   T73]      __sys_sendmsg+0xcd/0x170
[  834.349537][   T73]      do_syscall_64+0xc6/0x1e0
[  834.349537][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  834.349537][   T73] 
[  834.351337][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  834.351337][   T73]      neigh_parms_alloc+0x1e5/0x510
[  834.351337][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  834.351337][   T73]      ipv6_find_idev+0x102/0x170
[  834.351337][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  834.351337][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  834.351337][   T73]      netlink_rcv_skb+0x130/0x360
[  834.351337][   T73]      netlink_unicast+0x449/0x710
[  834.351337][   T73]      netlink_sendmsg+0x723/0xbe0
[  834.351337][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  834.351337][   T73]      ___sys_sendmsg+0xee/0x170
[  834.351337][   T73]      __sys_sendmsg+0xcd/0x170
[  834.351337][   T73]      do_syscall_64+0xc6/0x1e0
[  834.351337][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  834.351337][   T73] 
[  834.353285][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  834.353628][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  834.353628][   T73]      netdev_get_by_index+0x5e/0x80
[  834.353628][   T73]      fib6_nh_init+0x3d8/0x1580
[  834.353628][   T73]      ip6_route_info_create+0xf18/0x17d0
[  834.353628][   T73]      addrconf_f6i_alloc+0x265/0x560
[  834.353628][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  834.353628][   T73]      addrconf_join_anycast+0x1c0/0x220
[  834.353628][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  834.353628][   T73]      addrconf_dad_completed+0x12b/0xe20
[  834.353628][   T73]      addrconf_dad_begin+0x310/0x670
[  834.353628][   T73]      addrconf_dad_work+0x10b/0xab0
[  834.353628][   T73]      process_one_work+0x84d/0x18a0
[  834.353628][   T73]      worker_thread+0x587/0xd30
[  834.353628][   T73]      kthread+0x28a/0x350
[  834.353628][   T73]      ret_from_fork+0x31/0x70
[  834.353628][   T73]      ret_from_fork_asm+0x1a/0x30
[  834.353628][   T73] 
[  834.356321][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  834.356321][   T73]      netdev_get_by_index+0x5e/0x80
[  834.356321][   T73]      fib6_nh_init+0x3d8/0x1580
[  834.356321][   T73]      ip6_route_info_create+0xf18/0x17d0
[  834.356321][   T73]      ip6_route_add+0x1c/0x140
[  834.356321][   T73]      addrconf_prefix_route+0x2a6/0x430
[  834.356321][   T73]      inet6_addr_add+0x4f8/0xa40
[  834.356321][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  834.356321][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  834.356321][   T73]      netlink_rcv_skb+0x130/0x360
[  834.356321][   T73]      netlink_unicast+0x449/0x710
[  834.356321][   T73]      netlink_sendmsg+0x723/0xbe0
[  834.356321][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  834.356321][   T73]      ___sys_sendmsg+0xee/0x170
[  834.356321][   T73]      __sys_sendmsg+0xcd/0x170
[  834.356321][   T73]      do_syscall_64+0xc6/0x1e0
[  834.356321][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  834.356321][   T73] 
[  834.358644][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  834.358644][   T73]      netdev_get_by_index+0x5e/0x80
[  834.358644][   T73]      fib6_nh_init+0x3d8/0x1580
[  834.358644][   T73]      ip6_route_info_create+0xf18/0x17d0
[  834.358644][   T73]      addrconf_f6i_alloc+0x315/0x560
[  834.358644][   T73]      ipv6_add_addr+0x411/0x2000
[  834.358644][   T73]      inet6_addr_add+0x30e/0xa40
[  834.358644][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  834.358644][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  834.358644][   T73]      netlink_rcv_skb+0x130/0x360
[  834.358644][   T73]      netlink_unicast+0x449/0x710
[  834.358644][   T73]      netlink_sendmsg+0x723/0xbe0
[  834.358644][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  834.358644][   T73]      ___sys_sendmsg+0xee/0x170
[  834.358644][   T73]      __sys_sendmsg+0xcd/0x170
[  834.358644][   T73]      do_syscall_64+0xc6/0x1e0
[  834.358644][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  834.358644][   T73] 
[  834.361017][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  834.361017][   T73]      netdev_get_by_index+0x5e/0x80
[  834.361017][   T73]      fib6_nh_init+0x3d8/0x1580
[  834.361017][   T73]      ip6_route_info_create+0xf18/0x17d0
[  834.361017][   T73]      ip6_route_add+0x1c/0x140
[  834.361017][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  834.361017][   T73]      addrconf_add_dev+0xe2/0x170
[  834.361017][   T73]      inet6_addr_add+0x12f/0xa40
[  834.361017][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  834.361017][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  834.361017][   T73]      netlink_rcv_skb+0x130/0x360
[  834.361017][   T73]      netlink_unicast+0x449/0x710
[  834.361017][   T73]      netlink_sendmsg+0x723/0xbe0
[  834.361017][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  834.361017][   T73]      ___sys_sendmsg+0xee/0x170
[  834.361017][   T73]      __sys_sendmsg+0xcd/0x170
[  834.361017][   T73]      do_syscall_64+0xc6/0x1e0
[  834.361017][   T73] 
[  834.363691][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  834.363691][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  834.363691][   T73]      ipv6_find_idev+0x102/0x170
[  834.363691][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  834.363691][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  834.363691][   T73]      netlink_rcv_skb+0x130/0x360
[  834.363691][   T73]      netlink_unicast+0x449/0x710
[  834.363691][   T73]      netlink_sendmsg+0x723/0xbe0
[  834.363691][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  834.363691][   T73]      ___sys_sendmsg+0xee/0x170
[  834.363691][   T73]      __sys_sendmsg+0xcd/0x170
[  834.363691][   T73]      do_syscall_64+0xc6/0x1e0
[  834.363691][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  834.363691][   T73] 
[  834.365469][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  834.365469][   T73]      neigh_parms_alloc+0x1e5/0x510
[  834.365469][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  834.365469][   T73]      ipv6_find_idev+0x102/0x170
[  834.365469][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  834.365469][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  834.365469][   T73]      netlink_rcv_skb+0x130/0x360
[  834.365469][   T73]      netlink_unicast+0x449/0x710
[  834.365469][   T73]      netlink_sendmsg+0x723/0xbe0
[  834.365469][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  834.365469][   T73]      ___sys_sendmsg+0xee/0x170
[  834.365469][   T73]      __sys_sendmsg+0xcd/0x170
[  834.365469][   T73]      do_syscall_64+0xc6/0x1e0
[  834.365469][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  834.365469][   T73] 
[  844.623778][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  844.624303][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  844.624303][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  844.624303][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  844.624303][   T73]      fib6_nh_init+0xa22/0x1580
[  844.624303][   T73]      ip6_route_info_create+0xf18/0x17d0
[  844.624303][   T73]      ip6_route_add+0x1c/0x140
[  844.624303][   T73]      inet6_rtm_newroute+0x104/0x110
[  844.624303][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  844.624303][   T73]      netlink_rcv_skb+0x130/0x360
[  844.624303][   T73]      netlink_unicast+0x449/0x710
[  844.624303][   T73]      netlink_sendmsg+0x723/0xbe0
[  844.624303][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  844.624303][   T73]      ___sys_sendmsg+0xee/0x170
[  844.624303][   T73]      __sys_sendmsg+0xcd/0x170
[  844.624303][   T73]      do_syscall_64+0xc6/0x1e0
[  844.624303][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  844.624303][   T73] 
[  844.626281][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  844.626281][   T73]      dst_init+0x84/0x4a0
[  844.626281][   T73]      dst_alloc+0x97/0x150
[  844.626281][   T73]      ip6_dst_alloc+0x23/0x90
[  844.626281][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  844.626281][   T73]      ip6_pol_route+0x56f/0x840
[  844.626281][   T73]      fib6_rule_lookup+0x456/0x630
[  844.626281][   T73]      ip6_route_input+0x59c/0xa50
[  844.626281][   T73]      ipv6_rcv+0x397/0x810
[  844.626281][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  844.626281][   T73]      process_backlog+0x101/0x620
[  844.626281][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  844.626281][   T73]      net_rx_action+0x495/0xbe0
[  844.626281][   T73]      __do_softirq+0x1b5/0x7f6
[  844.626281][   T73] 
[  844.627983][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  844.627983][   T73]      netdev_get_by_index+0x5e/0x80
[  844.627983][   T73]      fib6_nh_init+0x3d8/0x1580
[  844.627983][   T73]      ip6_route_info_create+0xf18/0x17d0
[  844.627983][   T73]      ip6_route_add+0x1c/0x140
[  844.627983][   T73]      addrconf_prefix_route+0x2a6/0x430
[  844.627983][   T73]      inet6_addr_add+0x4f8/0xa40
[  844.627983][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  844.627983][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  844.627983][   T73]      netlink_rcv_skb+0x130/0x360
[  844.627983][   T73]      netlink_unicast+0x449/0x710
[  844.627983][   T73]      netlink_sendmsg+0x723/0xbe0
[  844.627983][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  844.627983][   T73]      ___sys_sendmsg+0xee/0x170
[  844.627983][   T73]      __sys_sendmsg+0xcd/0x170
[  844.627983][   T73]      do_syscall_64+0xc6/0x1e0
[  844.627983][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  844.627983][   T73] 
[  844.630068][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  844.630068][   T73]      netdev_get_by_index+0x5e/0x80
[  844.630068][   T73]      fib6_nh_init+0x3d8/0x1580
[  844.630068][   T73]      ip6_route_info_create+0xf18/0x17d0
[  844.630068][   T73]      addrconf_f6i_alloc+0x315/0x560
[  844.630068][   T73]      ipv6_add_addr+0x411/0x2000
[  844.630068][   T73]      inet6_addr_add+0x30e/0xa40
[  844.630068][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  844.630068][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  844.630068][   T73]      netlink_rcv_skb+0x130/0x360
[  844.630068][   T73]      netlink_unicast+0x449/0x710
[  844.630068][   T73]      netlink_sendmsg+0x723/0xbe0
[  844.630068][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  844.630068][   T73]      ___sys_sendmsg+0xee/0x170
[  844.630068][   T73]      __sys_sendmsg+0xcd/0x170
[  844.630068][   T73]      do_syscall_64+0xc6/0x1e0
[  844.630068][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  844.630068][   T73] 
[  844.632152][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  844.632152][   T73]      netdev_get_by_index+0x5e/0x80
[  844.632152][   T73]      fib6_nh_init+0x3d8/0x1580
[  844.632152][   T73]      ip6_route_info_create+0xf18/0x17d0
[  844.632152][   T73]      ip6_route_add+0x1c/0x140
[  844.632152][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  844.632152][   T73]      addrconf_add_dev+0xe2/0x170
[  844.632152][   T73]      inet6_addr_add+0x12f/0xa40
[  844.632152][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  844.632152][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  844.632152][   T73]      netlink_rcv_skb+0x130/0x360
[  844.632152][   T73]      netlink_unicast+0x449/0x710
[  844.632152][   T73]      netlink_sendmsg+0x723/0xbe0
[  844.632152][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  844.632152][   T73]      ___sys_sendmsg+0xee/0x170
[  844.632152][   T73]      __sys_sendmsg+0xcd/0x170
[  844.632152][   T73]      do_syscall_64+0xc6/0x1e0
[  844.632152][   T73] 
[  844.634202][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  844.634202][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  844.634202][   T73]      ipv6_find_idev+0x102/0x170
[  844.634202][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  844.634202][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  844.634202][   T73]      netlink_rcv_skb+0x130/0x360
[  844.634202][   T73]      netlink_unicast+0x449/0x710
[  844.634202][   T73]      netlink_sendmsg+0x723/0xbe0
[  844.634202][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  844.634202][   T73]      ___sys_sendmsg+0xee/0x170
[  844.634202][   T73]      __sys_sendmsg+0xcd/0x170
[  844.634202][   T73]      do_syscall_64+0xc6/0x1e0
[  844.634202][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  844.634202][   T73] 
[  844.635797][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  844.635797][   T73]      neigh_parms_alloc+0x1e5/0x510
[  844.635797][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  844.635797][   T73]      ipv6_find_idev+0x102/0x170
[  844.635797][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  844.635797][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  844.635797][   T73]      netlink_rcv_skb+0x130/0x360
[  844.635797][   T73]      netlink_unicast+0x449/0x710
[  844.635797][   T73]      netlink_sendmsg+0x723/0xbe0
[  844.635797][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  844.635797][   T73]      ___sys_sendmsg+0xee/0x170
[  844.635797][   T73]      __sys_sendmsg+0xcd/0x170
[  844.635797][   T73]      do_syscall_64+0xc6/0x1e0
[  844.635797][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  844.635797][   T73] 
[  844.637552][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  844.637842][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  844.637842][   T73]      netdev_get_by_index+0x5e/0x80
[  844.637842][   T73]      fib6_nh_init+0x3d8/0x1580
[  844.637842][   T73]      ip6_route_info_create+0xf18/0x17d0
[  844.637842][   T73]      addrconf_f6i_alloc+0x265/0x560
[  844.637842][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  844.637842][   T73]      addrconf_join_anycast+0x1c0/0x220
[  844.637842][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  844.637842][   T73]      addrconf_dad_completed+0x12b/0xe20
[  844.637842][   T73]      addrconf_dad_begin+0x310/0x670
[  844.637842][   T73]      addrconf_dad_work+0x10b/0xab0
[  844.637842][   T73]      process_one_work+0x84d/0x18a0
[  844.637842][   T73]      worker_thread+0x587/0xd30
[  844.637842][   T73]      kthread+0x28a/0x350
[  844.637842][   T73]      ret_from_fork+0x31/0x70
[  844.637842][   T73]      ret_from_fork_asm+0x1a/0x30
[  844.637842][   T73] 
[  844.639832][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  844.639832][   T73]      netdev_get_by_index+0x5e/0x80
[  844.639832][   T73]      fib6_nh_init+0x3d8/0x1580
[  844.639832][   T73]      ip6_route_info_create+0xf18/0x17d0
[  844.639832][   T73]      ip6_route_add+0x1c/0x140
[  844.639832][   T73]      addrconf_prefix_route+0x2a6/0x430
[  844.639832][   T73]      inet6_addr_add+0x4f8/0xa40
[  844.639832][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  844.639832][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  844.639832][   T73]      netlink_rcv_skb+0x130/0x360
[  844.639832][   T73]      netlink_unicast+0x449/0x710
[  844.639832][   T73]      netlink_sendmsg+0x723/0xbe0
[  844.639832][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  844.639832][   T73]      ___sys_sendmsg+0xee/0x170
[  844.639832][   T73]      __sys_sendmsg+0xcd/0x170
[  844.639832][   T73]      do_syscall_64+0xc6/0x1e0
[  844.639832][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  844.639832][   T73] 
[  844.641931][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  844.641931][   T73]      netdev_get_by_index+0x5e/0x80
[  844.641931][   T73]      fib6_nh_init+0x3d8/0x1580
[  844.641931][   T73]      ip6_route_info_create+0xf18/0x17d0
[  844.641931][   T73]      addrconf_f6i_alloc+0x315/0x560
[  844.641931][   T73]      ipv6_add_addr+0x411/0x2000
[  844.641931][   T73]      inet6_addr_add+0x30e/0xa40
[  844.641931][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  844.641931][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  844.641931][   T73]      netlink_rcv_skb+0x130/0x360
[  844.641931][   T73]      netlink_unicast+0x449/0x710
[  844.641931][   T73]      netlink_sendmsg+0x723/0xbe0
[  844.641931][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  844.641931][   T73]      ___sys_sendmsg+0xee/0x170
[  844.641931][   T73]      __sys_sendmsg+0xcd/0x170
[  844.641931][   T73]      do_syscall_64+0xc6/0x1e0
[  844.641931][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  844.641931][   T73] 
[  844.644032][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  844.644032][   T73]      netdev_get_by_index+0x5e/0x80
[  844.644032][   T73]      fib6_nh_init+0x3d8/0x1580
[  844.644032][   T73]      ip6_route_info_create+0xf18/0x17d0
[  844.644032][   T73]      ip6_route_add+0x1c/0x140
[  844.644032][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  844.644032][   T73]      addrconf_add_dev+0xe2/0x170
[  844.644032][   T73]      inet6_addr_add+0x12f/0xa40
[  844.644032][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  844.644032][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  844.644032][   T73]      netlink_rcv_skb+0x130/0x360
[  844.644032][   T73]      netlink_unicast+0x449/0x710
[  844.644032][   T73]      netlink_sendmsg+0x723/0xbe0
[  844.644032][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  844.644032][   T73]      ___sys_sendmsg+0xee/0x170
[  844.644032][   T73]      __sys_sendmsg+0xcd/0x170
[  844.644032][   T73]      do_syscall_64+0xc6/0x1e0
[  844.644032][   T73] 
[  844.646081][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  844.646081][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  844.646081][   T73]      ipv6_find_idev+0x102/0x170
[  844.646081][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  844.646081][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  844.646081][   T73]      netlink_rcv_skb+0x130/0x360
[  844.646081][   T73]      netlink_unicast+0x449/0x710
[  844.646081][   T73]      netlink_sendmsg+0x723/0xbe0
[  844.646081][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  844.646081][   T73]      ___sys_sendmsg+0xee/0x170
[  844.646081][   T73]      __sys_sendmsg+0xcd/0x170
[  844.646081][   T73]      do_syscall_64+0xc6/0x1e0
[  844.646081][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  844.646081][   T73] 
[  844.647680][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  844.647680][   T73]      neigh_parms_alloc+0x1e5/0x510
[  844.647680][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  844.647680][   T73]      ipv6_find_idev+0x102/0x170
[  844.647680][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  844.647680][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  844.647680][   T73]      netlink_rcv_skb+0x130/0x360
[  844.647680][   T73]      netlink_unicast+0x449/0x710
[  844.647680][   T73]      netlink_sendmsg+0x723/0xbe0
[  844.647680][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  844.647680][   T73]      ___sys_sendmsg+0xee/0x170
[  844.647680][   T73]      __sys_sendmsg+0xcd/0x170
[  844.647680][   T73]      do_syscall_64+0xc6/0x1e0
[  844.647680][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  844.647680][   T73] 
[  844.649439][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  844.649726][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  844.649726][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  844.649726][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  844.649726][   T73]      fib6_nh_init+0xa22/0x1580
[  844.649726][   T73]      ip6_route_info_create+0xf18/0x17d0
[  844.649726][   T73]      ip6_route_add+0x1c/0x140
[  844.649726][   T73]      inet6_rtm_newroute+0x104/0x110
[  844.649726][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  844.649726][   T73]      netlink_rcv_skb+0x130/0x360
[  844.649726][   T73]      netlink_unicast+0x449/0x710
[  844.649726][   T73]      netlink_sendmsg+0x723/0xbe0
[  844.649726][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  844.649726][   T73]      ___sys_sendmsg+0xee/0x170
[  844.649726][   T73]      __sys_sendmsg+0xcd/0x170
[  844.649726][   T73]      do_syscall_64+0xc6/0x1e0
[  844.649726][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  844.649726][   T73] 
[  844.651810][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  844.651810][   T73]      dst_init+0x84/0x4a0
[  844.651810][   T73]      dst_alloc+0x97/0x150
[  844.651810][   T73]      ip6_dst_alloc+0x23/0x90
[  844.651810][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  844.651810][   T73]      ip6_pol_route+0x56f/0x840
[  844.651810][   T73]      fib6_rule_lookup+0x456/0x630
[  844.651810][   T73]      ip6_route_input+0x59c/0xa50
[  844.651810][   T73]      ipv6_rcv+0x397/0x810
[  844.651810][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  844.651810][   T73]      process_backlog+0x101/0x620
[  844.651810][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  844.651810][   T73]      net_rx_action+0x495/0xbe0
[  844.651810][   T73]      __do_softirq+0x1b5/0x7f6
[  844.651810][   T73] 
[  844.653691][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  844.653691][   T73]      netdev_get_by_index+0x5e/0x80
[  844.653691][   T73]      fib6_nh_init+0x3d8/0x1580
[  844.653691][   T73]      ip6_route_info_create+0xf18/0x17d0
[  844.653691][   T73]      ip6_route_add+0x1c/0x140
[  844.653691][   T73]      addrconf_prefix_route+0x2a6/0x430
[  844.653691][   T73]      inet6_addr_add+0x4f8/0xa40
[  844.653691][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  844.653691][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  844.653691][   T73]      netlink_rcv_skb+0x130/0x360
[  844.653691][   T73]      netlink_unicast+0x449/0x710
[  844.653691][   T73]      netlink_sendmsg+0x723/0xbe0
[  844.653691][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  844.653691][   T73]      ___sys_sendmsg+0xee/0x170
[  844.653691][   T73]      __sys_sendmsg+0xcd/0x170
[  844.653691][   T73]      do_syscall_64+0xc6/0x1e0
[  844.653691][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  844.653691][   T73] 
[  844.656076][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  844.656076][   T73]      netdev_get_by_index+0x5e/0x80
[  844.656076][   T73]      fib6_nh_init+0x3d8/0x1580
[  844.656076][   T73]      ip6_route_info_create+0xf18/0x17d0
[  844.656076][   T73]      addrconf_f6i_alloc+0x315/0x560
[  844.656076][   T73]      ipv6_add_addr+0x411/0x2000
[  844.656076][   T73]      inet6_addr_add+0x30e/0xa40
[  844.656076][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  844.656076][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  844.656076][   T73]      netlink_rcv_skb+0x130/0x360
[  844.656076][   T73]      netlink_unicast+0x449/0x710
[  844.656076][   T73]      netlink_sendmsg+0x723/0xbe0
[  844.656076][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  844.656076][   T73]      ___sys_sendmsg+0xee/0x170
[  844.656076][   T73]      __sys_sendmsg+0xcd/0x170
[  844.656076][   T73]      do_syscall_64+0xc6/0x1e0
[  844.656076][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  844.656076][   T73] 
[  844.658402][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  844.658402][   T73]      netdev_get_by_index+0x5e/0x80
[  844.658402][   T73]      fib6_nh_init+0x3d8/0x1580
[  844.658402][   T73]      ip6_route_info_create+0xf18/0x17d0
[  844.658402][   T73]      ip6_route_add+0x1c/0x140
[  844.658402][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  844.658402][   T73]      addrconf_add_dev+0xe2/0x170
[  844.658402][   T73]      inet6_addr_add+0x12f/0xa40
[  844.658402][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  844.658402][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  844.658402][   T73]      netlink_rcv_skb+0x130/0x360
[  844.658402][   T73]      netlink_unicast+0x449/0x710
[  844.658402][   T73]      netlink_sendmsg+0x723/0xbe0
[  844.658402][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  844.658402][   T73]      ___sys_sendmsg+0xee/0x170
[  844.658402][   T73]      __sys_sendmsg+0xcd/0x170
[  844.658402][   T73]      do_syscall_64+0xc6/0x1e0
[  844.658402][   T73] 
[  844.660628][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  844.660628][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  844.660628][   T73]      ipv6_find_idev+0x102/0x170
[  844.660628][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  844.660628][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  844.660628][   T73]      netlink_rcv_skb+0x130/0x360
[  844.660628][   T73]      netlink_unicast+0x449/0x710
[  844.660628][   T73]      netlink_sendmsg+0x723/0xbe0
[  844.660628][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  844.660628][   T73]      ___sys_sendmsg+0xee/0x170
[  844.660628][   T73]      __sys_sendmsg+0xcd/0x170
[  844.660628][   T73]      do_syscall_64+0xc6/0x1e0
[  844.660628][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  844.660628][   T73] 
[  844.662549][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  844.662549][   T73]      neigh_parms_alloc+0x1e5/0x510
[  844.662549][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  844.662549][   T73]      ipv6_find_idev+0x102/0x170
[  844.662549][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  844.662549][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  844.662549][   T73]      netlink_rcv_skb+0x130/0x360
[  844.662549][   T73]      netlink_unicast+0x449/0x710
[  844.662549][   T73]      netlink_sendmsg+0x723/0xbe0
[  844.662549][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  844.662549][   T73]      ___sys_sendmsg+0xee/0x170
[  844.662549][   T73]      __sys_sendmsg+0xcd/0x170
[  844.662549][   T73]      do_syscall_64+0xc6/0x1e0
[  844.662549][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  844.662549][   T73] 
[  844.664450][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  844.665213][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  844.665213][   T73]      netdev_get_by_index+0x5e/0x80
[  844.665213][   T73]      fib6_nh_init+0x3d8/0x1580
[  844.665213][   T73]      ip6_route_info_create+0xf18/0x17d0
[  844.665213][   T73]      addrconf_f6i_alloc+0x265/0x560
[  844.665213][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  844.665213][   T73]      addrconf_join_anycast+0x1c0/0x220
[  844.665213][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  844.665213][   T73]      addrconf_dad_completed+0x12b/0xe20
[  844.665213][   T73]      addrconf_dad_begin+0x310/0x670
[  844.665213][   T73]      addrconf_dad_work+0x10b/0xab0
[  844.665213][   T73]      process_one_work+0x84d/0x18a0
[  844.665213][   T73]      worker_thread+0x587/0xd30
[  844.665213][   T73]      kthread+0x28a/0x350
[  844.665213][   T73]      ret_from_fork+0x31/0x70
[  844.665213][   T73]      ret_from_fork_asm+0x1a/0x30
[  844.665213][   T73] 
[  844.667115][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  844.667115][   T73]      netdev_get_by_index+0x5e/0x80
[  844.667115][   T73]      fib6_nh_init+0x3d8/0x1580
[  844.667115][   T73]      ip6_route_info_create+0xf18/0x17d0
[  844.667115][   T73]      ip6_route_add+0x1c/0x140
[  844.667115][   T73]      addrconf_prefix_route+0x2a6/0x430
[  844.667115][   T73]      inet6_addr_add+0x4f8/0xa40
[  844.667115][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  844.667115][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  844.667115][   T73]      netlink_rcv_skb+0x130/0x360
[  844.667115][   T73]      netlink_unicast+0x449/0x710
[  844.667115][   T73]      netlink_sendmsg+0x723/0xbe0
[  844.667115][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  844.667115][   T73]      ___sys_sendmsg+0xee/0x170
[  844.667115][   T73]      __sys_sendmsg+0xcd/0x170
[  844.667115][   T73]      do_syscall_64+0xc6/0x1e0
[  844.667115][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  844.667115][   T73] 
[  844.669300][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  844.669300][   T73]      netdev_get_by_index+0x5e/0x80
[  844.669300][   T73]      fib6_nh_init+0x3d8/0x1580
[  844.669300][   T73]      ip6_route_info_create+0xf18/0x17d0
[  844.669300][   T73]      addrconf_f6i_alloc+0x315/0x560
[  844.669300][   T73]      ipv6_add_addr+0x411/0x2000
[  844.669300][   T73]      inet6_addr_add+0x30e/0xa40
[  844.669300][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  844.669300][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  844.669300][   T73]      netlink_rcv_skb+0x130/0x360
[  844.669300][   T73]      netlink_unicast+0x449/0x710
[  844.669300][   T73]      netlink_sendmsg+0x723/0xbe0
[  844.669300][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  844.669300][   T73]      ___sys_sendmsg+0xee/0x170
[  844.669300][   T73]      __sys_sendmsg+0xcd/0x170
[  844.669300][   T73]      do_syscall_64+0xc6/0x1e0
[  844.669300][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  844.669300][   T73] 
[  844.671646][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  844.671646][   T73]      netdev_get_by_index+0x5e/0x80
[  844.671646][   T73]      fib6_nh_init+0x3d8/0x1580
[  844.671646][   T73]      ip6_route_info_create+0xf18/0x17d0
[  844.671646][   T73]      ip6_route_add+0x1c/0x140
[  844.671646][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  844.671646][   T73]      addrconf_add_dev+0xe2/0x170
[  844.671646][   T73]      inet6_addr_add+0x12f/0xa40
[  844.671646][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  844.671646][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  844.671646][   T73]      netlink_rcv_skb+0x130/0x360
[  844.671646][   T73]      netlink_unicast+0x449/0x710
[  844.671646][   T73]      netlink_sendmsg+0x723/0xbe0
[  844.671646][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  844.671646][   T73]      ___sys_sendmsg+0xee/0x170
[  844.671646][   T73]      __sys_sendmsg+0xcd/0x170
[  844.671646][   T73]      do_syscall_64+0xc6/0x1e0
[  844.671646][   T73] 
[  844.673952][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  844.673952][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  844.673952][   T73]      ipv6_find_idev+0x102/0x170
[  844.673952][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  844.673952][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  844.673952][   T73]      netlink_rcv_skb+0x130/0x360
[  844.673952][   T73]      netlink_unicast+0x449/0x710
[  844.673952][   T73]      netlink_sendmsg+0x723/0xbe0
[  844.673952][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  844.673952][   T73]      ___sys_sendmsg+0xee/0x170
[  844.673952][   T73]      __sys_sendmsg+0xcd/0x170
[  844.673952][   T73]      do_syscall_64+0xc6/0x1e0
[  844.673952][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  844.673952][   T73] 
[  844.675741][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  844.675741][   T73]      neigh_parms_alloc+0x1e5/0x510
[  844.675741][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  844.675741][   T73]      ipv6_find_idev+0x102/0x170
[  844.675741][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  844.675741][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  844.675741][   T73]      netlink_rcv_skb+0x130/0x360
[  844.675741][   T73]      netlink_unicast+0x449/0x710
[  844.675741][   T73]      netlink_sendmsg+0x723/0xbe0
[  844.675741][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  844.675741][   T73]      ___sys_sendmsg+0xee/0x170
[  844.675741][   T73]      __sys_sendmsg+0xcd/0x170
[  844.675741][   T73]      do_syscall_64+0xc6/0x1e0
[  844.675741][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  844.675741][   T73] 
[  854.799807][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  854.800222][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  854.800222][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  854.800222][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  854.800222][   T73]      fib6_nh_init+0xa22/0x1580
[  854.800222][   T73]      ip6_route_info_create+0xf18/0x17d0
[  854.800222][   T73]      ip6_route_add+0x1c/0x140
[  854.800222][   T73]      inet6_rtm_newroute+0x104/0x110
[  854.800222][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  854.800222][   T73]      netlink_rcv_skb+0x130/0x360
[  854.800222][   T73]      netlink_unicast+0x449/0x710
[  854.800222][   T73]      netlink_sendmsg+0x723/0xbe0
[  854.800222][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  854.800222][   T73]      ___sys_sendmsg+0xee/0x170
[  854.800222][   T73]      __sys_sendmsg+0xcd/0x170
[  854.800222][   T73]      do_syscall_64+0xc6/0x1e0
[  854.800222][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  854.800222][   T73] 
[  854.802219][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  854.802219][   T73]      dst_init+0x84/0x4a0
[  854.802219][   T73]      dst_alloc+0x97/0x150
[  854.802219][   T73]      ip6_dst_alloc+0x23/0x90
[  854.802219][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  854.802219][   T73]      ip6_pol_route+0x56f/0x840
[  854.802219][   T73]      fib6_rule_lookup+0x456/0x630
[  854.802219][   T73]      ip6_route_input+0x59c/0xa50
[  854.802219][   T73]      ipv6_rcv+0x397/0x810
[  854.802219][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  854.802219][   T73]      process_backlog+0x101/0x620
[  854.802219][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  854.802219][   T73]      net_rx_action+0x495/0xbe0
[  854.802219][   T73]      __do_softirq+0x1b5/0x7f6
[  854.802219][   T73] 
[  854.803922][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  854.803922][   T73]      netdev_get_by_index+0x5e/0x80
[  854.803922][   T73]      fib6_nh_init+0x3d8/0x1580
[  854.803922][   T73]      ip6_route_info_create+0xf18/0x17d0
[  854.803922][   T73]      ip6_route_add+0x1c/0x140
[  854.803922][   T73]      addrconf_prefix_route+0x2a6/0x430
[  854.803922][   T73]      inet6_addr_add+0x4f8/0xa40
[  854.803922][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  854.803922][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  854.803922][   T73]      netlink_rcv_skb+0x130/0x360
[  854.803922][   T73]      netlink_unicast+0x449/0x710
[  854.803922][   T73]      netlink_sendmsg+0x723/0xbe0
[  854.803922][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  854.803922][   T73]      ___sys_sendmsg+0xee/0x170
[  854.803922][   T73]      __sys_sendmsg+0xcd/0x170
[  854.803922][   T73]      do_syscall_64+0xc6/0x1e0
[  854.803922][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  854.803922][   T73] 
[  854.805995][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  854.805995][   T73]      netdev_get_by_index+0x5e/0x80
[  854.805995][   T73]      fib6_nh_init+0x3d8/0x1580
[  854.805995][   T73]      ip6_route_info_create+0xf18/0x17d0
[  854.805995][   T73]      addrconf_f6i_alloc+0x315/0x560
[  854.805995][   T73]      ipv6_add_addr+0x411/0x2000
[  854.805995][   T73]      inet6_addr_add+0x30e/0xa40
[  854.805995][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  854.805995][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  854.805995][   T73]      netlink_rcv_skb+0x130/0x360
[  854.805995][   T73]      netlink_unicast+0x449/0x710
[  854.805995][   T73]      netlink_sendmsg+0x723/0xbe0
[  854.805995][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  854.805995][   T73]      ___sys_sendmsg+0xee/0x170
[  854.805995][   T73]      __sys_sendmsg+0xcd/0x170
[  854.805995][   T73]      do_syscall_64+0xc6/0x1e0
[  854.805995][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  854.805995][   T73] 
[  854.807994][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  854.807994][   T73]      netdev_get_by_index+0x5e/0x80
[  854.807994][   T73]      fib6_nh_init+0x3d8/0x1580
[  854.807994][   T73]      ip6_route_info_create+0xf18/0x17d0
[  854.807994][   T73]      ip6_route_add+0x1c/0x140
[  854.807994][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  854.807994][   T73]      addrconf_add_dev+0xe2/0x170
[  854.807994][   T73]      inet6_addr_add+0x12f/0xa40
[  854.807994][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  854.807994][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  854.807994][   T73]      netlink_rcv_skb+0x130/0x360
[  854.807994][   T73]      netlink_unicast+0x449/0x710
[  854.807994][   T73]      netlink_sendmsg+0x723/0xbe0
[  854.807994][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  854.807994][   T73]      ___sys_sendmsg+0xee/0x170
[  854.807994][   T73]      __sys_sendmsg+0xcd/0x170
[  854.807994][   T73]      do_syscall_64+0xc6/0x1e0
[  854.807994][   T73] 
[  854.809965][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  854.809965][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  854.809965][   T73]      ipv6_find_idev+0x102/0x170
[  854.809965][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  854.809965][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  854.809965][   T73]      netlink_rcv_skb+0x130/0x360
[  854.809965][   T73]      netlink_unicast+0x449/0x710
[  854.809965][   T73]      netlink_sendmsg+0x723/0xbe0
[  854.809965][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  854.809965][   T73]      ___sys_sendmsg+0xee/0x170
[  854.809965][   T73]      __sys_sendmsg+0xcd/0x170
[  854.809965][   T73]      do_syscall_64+0xc6/0x1e0
[  854.809965][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  854.809965][   T73] 
[  854.811517][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  854.811517][   T73]      neigh_parms_alloc+0x1e5/0x510
[  854.811517][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  854.811517][   T73]      ipv6_find_idev+0x102/0x170
[  854.811517][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  854.811517][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  854.811517][   T73]      netlink_rcv_skb+0x130/0x360
[  854.811517][   T73]      netlink_unicast+0x449/0x710
[  854.811517][   T73]      netlink_sendmsg+0x723/0xbe0
[  854.811517][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  854.811517][   T73]      ___sys_sendmsg+0xee/0x170
[  854.811517][   T73]      __sys_sendmsg+0xcd/0x170
[  854.811517][   T73]      do_syscall_64+0xc6/0x1e0
[  854.811517][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  854.811517][   T73] 
[  854.813738][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  854.814011][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  854.814011][   T73]      netdev_get_by_index+0x5e/0x80
[  854.814011][   T73]      fib6_nh_init+0x3d8/0x1580
[  854.814011][   T73]      ip6_route_info_create+0xf18/0x17d0
[  854.814011][   T73]      addrconf_f6i_alloc+0x265/0x560
[  854.814011][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  854.814011][   T73]      addrconf_join_anycast+0x1c0/0x220
[  854.814011][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  854.814011][   T73]      addrconf_dad_completed+0x12b/0xe20
[  854.814011][   T73]      addrconf_dad_begin+0x310/0x670
[  854.814011][   T73]      addrconf_dad_work+0x10b/0xab0
[  854.814011][   T73]      process_one_work+0x84d/0x18a0
[  854.814011][   T73]      worker_thread+0x587/0xd30
[  854.814011][   T73]      kthread+0x28a/0x350
[  854.814011][   T73]      ret_from_fork+0x31/0x70
[  854.814011][   T73]      ret_from_fork_asm+0x1a/0x30
[  854.814011][   T73] 
[  854.815957][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  854.815957][   T73]      netdev_get_by_index+0x5e/0x80
[  854.815957][   T73]      fib6_nh_init+0x3d8/0x1580
[  854.815957][   T73]      ip6_route_info_create+0xf18/0x17d0
[  854.815957][   T73]      ip6_route_add+0x1c/0x140
[  854.815957][   T73]      addrconf_prefix_route+0x2a6/0x430
[  854.815957][   T73]      inet6_addr_add+0x4f8/0xa40
[  854.815957][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  854.815957][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  854.815957][   T73]      netlink_rcv_skb+0x130/0x360
[  854.815957][   T73]      netlink_unicast+0x449/0x710
[  854.815957][   T73]      netlink_sendmsg+0x723/0xbe0
[  854.815957][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  854.815957][   T73]      ___sys_sendmsg+0xee/0x170
[  854.815957][   T73]      __sys_sendmsg+0xcd/0x170
[  854.815957][   T73]      do_syscall_64+0xc6/0x1e0
[  854.815957][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  854.815957][   T73] 
[  854.817961][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  854.817961][   T73]      netdev_get_by_index+0x5e/0x80
[  854.817961][   T73]      fib6_nh_init+0x3d8/0x1580
[  854.817961][   T73]      ip6_route_info_create+0xf18/0x17d0
[  854.817961][   T73]      addrconf_f6i_alloc+0x315/0x560
[  854.817961][   T73]      ipv6_add_addr+0x411/0x2000
[  854.817961][   T73]      inet6_addr_add+0x30e/0xa40
[  854.817961][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  854.817961][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  854.817961][   T73]      netlink_rcv_skb+0x130/0x360
[  854.817961][   T73]      netlink_unicast+0x449/0x710
[  854.817961][   T73]      netlink_sendmsg+0x723/0xbe0
[  854.817961][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  854.817961][   T73]      ___sys_sendmsg+0xee/0x170
[  854.817961][   T73]      __sys_sendmsg+0xcd/0x170
[  854.817961][   T73]      do_syscall_64+0xc6/0x1e0
[  854.817961][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  854.817961][   T73] 
[  854.819978][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  854.819978][   T73]      netdev_get_by_index+0x5e/0x80
[  854.819978][   T73]      fib6_nh_init+0x3d8/0x1580
[  854.819978][   T73]      ip6_route_info_create+0xf18/0x17d0
[  854.819978][   T73]      ip6_route_add+0x1c/0x140
[  854.819978][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  854.819978][   T73]      addrconf_add_dev+0xe2/0x170
[  854.819978][   T73]      inet6_addr_add+0x12f/0xa40
[  854.819978][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  854.819978][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  854.819978][   T73]      netlink_rcv_skb+0x130/0x360
[  854.819978][   T73]      netlink_unicast+0x449/0x710
[  854.819978][   T73]      netlink_sendmsg+0x723/0xbe0
[  854.819978][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  854.819978][   T73]      ___sys_sendmsg+0xee/0x170
[  854.819978][   T73]      __sys_sendmsg+0xcd/0x170
[  854.819978][   T73]      do_syscall_64+0xc6/0x1e0
[  854.819978][   T73] 
[  854.821946][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  854.821946][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  854.821946][   T73]      ipv6_find_idev+0x102/0x170
[  854.821946][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  854.821946][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  854.821946][   T73]      netlink_rcv_skb+0x130/0x360
[  854.821946][   T73]      netlink_unicast+0x449/0x710
[  854.821946][   T73]      netlink_sendmsg+0x723/0xbe0
[  854.821946][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  854.821946][   T73]      ___sys_sendmsg+0xee/0x170
[  854.821946][   T73]      __sys_sendmsg+0xcd/0x170
[  854.821946][   T73]      do_syscall_64+0xc6/0x1e0
[  854.821946][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  854.821946][   T73] 
[  854.823519][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  854.823519][   T73]      neigh_parms_alloc+0x1e5/0x510
[  854.823519][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  854.823519][   T73]      ipv6_find_idev+0x102/0x170
[  854.823519][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  854.823519][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  854.823519][   T73]      netlink_rcv_skb+0x130/0x360
[  854.823519][   T73]      netlink_unicast+0x449/0x710
[  854.823519][   T73]      netlink_sendmsg+0x723/0xbe0
[  854.823519][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  854.823519][   T73]      ___sys_sendmsg+0xee/0x170
[  854.823519][   T73]      __sys_sendmsg+0xcd/0x170
[  854.823519][   T73]      do_syscall_64+0xc6/0x1e0
[  854.823519][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  854.823519][   T73] 
[  854.825223][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  854.825501][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  854.825501][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  854.825501][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  854.825501][   T73]      fib6_nh_init+0xa22/0x1580
[  854.825501][   T73]      ip6_route_info_create+0xf18/0x17d0
[  854.825501][   T73]      ip6_route_add+0x1c/0x140
[  854.825501][   T73]      inet6_rtm_newroute+0x104/0x110
[  854.825501][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  854.825501][   T73]      netlink_rcv_skb+0x130/0x360
[  854.825501][   T73]      netlink_unicast+0x449/0x710
[  854.825501][   T73]      netlink_sendmsg+0x723/0xbe0
[  854.825501][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  854.825501][   T73]      ___sys_sendmsg+0xee/0x170
[  854.825501][   T73]      __sys_sendmsg+0xcd/0x170
[  854.825501][   T73]      do_syscall_64+0xc6/0x1e0
[  854.825501][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  854.825501][   T73] 
[  854.827954][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  854.827954][   T73]      dst_init+0x84/0x4a0
[  854.827954][   T73]      dst_alloc+0x97/0x150
[  854.827954][   T73]      ip6_dst_alloc+0x23/0x90
[  854.827954][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  854.827954][   T73]      ip6_pol_route+0x56f/0x840
[  854.827954][   T73]      fib6_rule_lookup+0x456/0x630
[  854.827954][   T73]      ip6_route_input+0x59c/0xa50
[  854.827954][   T73]      ipv6_rcv+0x397/0x810
[  854.827954][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  854.827954][   T73]      process_backlog+0x101/0x620
[  854.827954][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  854.827954][   T73]      net_rx_action+0x495/0xbe0
[  854.827954][   T73]      __do_softirq+0x1b5/0x7f6
[  854.827954][   T73] 
[  854.829828][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  854.829828][   T73]      netdev_get_by_index+0x5e/0x80
[  854.829828][   T73]      fib6_nh_init+0x3d8/0x1580
[  854.829828][   T73]      ip6_route_info_create+0xf18/0x17d0
[  854.829828][   T73]      ip6_route_add+0x1c/0x140
[  854.829828][   T73]      addrconf_prefix_route+0x2a6/0x430
[  854.829828][   T73]      inet6_addr_add+0x4f8/0xa40
[  854.829828][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  854.829828][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  854.829828][   T73]      netlink_rcv_skb+0x130/0x360
[  854.829828][   T73]      netlink_unicast+0x449/0x710
[  854.829828][   T73]      netlink_sendmsg+0x723/0xbe0
[  854.829828][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  854.829828][   T73]      ___sys_sendmsg+0xee/0x170
[  854.829828][   T73]      __sys_sendmsg+0xcd/0x170
[  854.829828][   T73]      do_syscall_64+0xc6/0x1e0
[  854.829828][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  854.829828][   T73] 
[  854.832074][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  854.832074][   T73]      netdev_get_by_index+0x5e/0x80
[  854.832074][   T73]      fib6_nh_init+0x3d8/0x1580
[  854.832074][   T73]      ip6_route_info_create+0xf18/0x17d0
[  854.832074][   T73]      addrconf_f6i_alloc+0x315/0x560
[  854.832074][   T73]      ipv6_add_addr+0x411/0x2000
[  854.832074][   T73]      inet6_addr_add+0x30e/0xa40
[  854.832074][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  854.832074][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  854.832074][   T73]      netlink_rcv_skb+0x130/0x360
[  854.832074][   T73]      netlink_unicast+0x449/0x710
[  854.832074][   T73]      netlink_sendmsg+0x723/0xbe0
[  854.832074][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  854.832074][   T73]      ___sys_sendmsg+0xee/0x170
[  854.832074][   T73]      __sys_sendmsg+0xcd/0x170
[  854.832074][   T73]      do_syscall_64+0xc6/0x1e0
[  854.832074][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  854.832074][   T73] 
[  854.834253][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  854.834253][   T73]      netdev_get_by_index+0x5e/0x80
[  854.834253][   T73]      fib6_nh_init+0x3d8/0x1580
[  854.834253][   T73]      ip6_route_info_create+0xf18/0x17d0
[  854.834253][   T73]      ip6_route_add+0x1c/0x140
[  854.834253][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  854.834253][   T73]      addrconf_add_dev+0xe2/0x170
[  854.834253][   T73]      inet6_addr_add+0x12f/0xa40
[  854.834253][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  854.834253][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  854.834253][   T73]      netlink_rcv_skb+0x130/0x360
[  854.834253][   T73]      netlink_unicast+0x449/0x710
[  854.834253][   T73]      netlink_sendmsg+0x723/0xbe0
[  854.834253][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  854.834253][   T73]      ___sys_sendmsg+0xee/0x170
[  854.834253][   T73]      __sys_sendmsg+0xcd/0x170
[  854.834253][   T73]      do_syscall_64+0xc6/0x1e0
[  854.834253][   T73] 
[  854.836417][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  854.836417][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  854.836417][   T73]      ipv6_find_idev+0x102/0x170
[  854.836417][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  854.836417][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  854.836417][   T73]      netlink_rcv_skb+0x130/0x360
[  854.836417][   T73]      netlink_unicast+0x449/0x710
[  854.836417][   T73]      netlink_sendmsg+0x723/0xbe0
[  854.836417][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  854.836417][   T73]      ___sys_sendmsg+0xee/0x170
[  854.836417][   T73]      __sys_sendmsg+0xcd/0x170
[  854.836417][   T73]      do_syscall_64+0xc6/0x1e0
[  854.836417][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  854.836417][   T73] 
[  854.838145][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  854.838145][   T73]      neigh_parms_alloc+0x1e5/0x510
[  854.838145][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  854.838145][   T73]      ipv6_find_idev+0x102/0x170
[  854.838145][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  854.838145][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  854.838145][   T73]      netlink_rcv_skb+0x130/0x360
[  854.838145][   T73]      netlink_unicast+0x449/0x710
[  854.838145][   T73]      netlink_sendmsg+0x723/0xbe0
[  854.838145][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  854.838145][   T73]      ___sys_sendmsg+0xee/0x170
[  854.838145][   T73]      __sys_sendmsg+0xcd/0x170
[  854.838145][   T73]      do_syscall_64+0xc6/0x1e0
[  854.838145][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  854.838145][   T73] 
[  854.840063][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  854.840401][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  854.840401][   T73]      netdev_get_by_index+0x5e/0x80
[  854.840401][   T73]      fib6_nh_init+0x3d8/0x1580
[  854.840401][   T73]      ip6_route_info_create+0xf18/0x17d0
[  854.840401][   T73]      addrconf_f6i_alloc+0x265/0x560
[  854.840401][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  854.840401][   T73]      addrconf_join_anycast+0x1c0/0x220
[  854.840401][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  854.840401][   T73]      addrconf_dad_completed+0x12b/0xe20
[  854.840401][   T73]      addrconf_dad_begin+0x310/0x670
[  854.840401][   T73]      addrconf_dad_work+0x10b/0xab0
[  854.840401][   T73]      process_one_work+0x84d/0x18a0
[  854.840401][   T73]      worker_thread+0x587/0xd30
[  854.840401][   T73]      kthread+0x28a/0x350
[  854.840401][   T73]      ret_from_fork+0x31/0x70
[  854.840401][   T73]      ret_from_fork_asm+0x1a/0x30
[  854.840401][   T73] 
[  854.842506][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  854.842506][   T73]      netdev_get_by_index+0x5e/0x80
[  854.842506][   T73]      fib6_nh_init+0x3d8/0x1580
[  854.842506][   T73]      ip6_route_info_create+0xf18/0x17d0
[  854.842506][   T73]      ip6_route_add+0x1c/0x140
[  854.842506][   T73]      addrconf_prefix_route+0x2a6/0x430
[  854.842506][   T73]      inet6_addr_add+0x4f8/0xa40
[  854.842506][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  854.842506][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  854.842506][   T73]      netlink_rcv_skb+0x130/0x360
[  854.842506][   T73]      netlink_unicast+0x449/0x710
[  854.842506][   T73]      netlink_sendmsg+0x723/0xbe0
[  854.842506][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  854.842506][   T73]      ___sys_sendmsg+0xee/0x170
[  854.842506][   T73]      __sys_sendmsg+0xcd/0x170
[  854.842506][   T73]      do_syscall_64+0xc6/0x1e0
[  854.842506][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  854.842506][   T73] 
[  854.844740][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  854.844740][   T73]      netdev_get_by_index+0x5e/0x80
[  854.844740][   T73]      fib6_nh_init+0x3d8/0x1580
[  854.844740][   T73]      ip6_route_info_create+0xf18/0x17d0
[  854.844740][   T73]      addrconf_f6i_alloc+0x315/0x560
[  854.844740][   T73]      ipv6_add_addr+0x411/0x2000
[  854.844740][   T73]      inet6_addr_add+0x30e/0xa40
[  854.844740][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  854.844740][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  854.844740][   T73]      netlink_rcv_skb+0x130/0x360
[  854.844740][   T73]      netlink_unicast+0x449/0x710
[  854.844740][   T73]      netlink_sendmsg+0x723/0xbe0
[  854.844740][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  854.844740][   T73]      ___sys_sendmsg+0xee/0x170
[  854.844740][   T73]      __sys_sendmsg+0xcd/0x170
[  854.844740][   T73]      do_syscall_64+0xc6/0x1e0
[  854.844740][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  854.844740][   T73] 
[  854.846976][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  854.846976][   T73]      netdev_get_by_index+0x5e/0x80
[  854.846976][   T73]      fib6_nh_init+0x3d8/0x1580
[  854.846976][   T73]      ip6_route_info_create+0xf18/0x17d0
[  854.846976][   T73]      ip6_route_add+0x1c/0x140
[  854.846976][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  854.846976][   T73]      addrconf_add_dev+0xe2/0x170
[  854.846976][   T73]      inet6_addr_add+0x12f/0xa40
[  854.846976][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  854.846976][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  854.846976][   T73]      netlink_rcv_skb+0x130/0x360
[  854.846976][   T73]      netlink_unicast+0x449/0x710
[  854.846976][   T73]      netlink_sendmsg+0x723/0xbe0
[  854.846976][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  854.846976][   T73]      ___sys_sendmsg+0xee/0x170
[  854.846976][   T73]      __sys_sendmsg+0xcd/0x170
[  854.846976][   T73]      do_syscall_64+0xc6/0x1e0
[  854.846976][   T73] 
[  854.849246][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  854.849246][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  854.849246][   T73]      ipv6_find_idev+0x102/0x170
[  854.849246][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  854.849246][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  854.849246][   T73]      netlink_rcv_skb+0x130/0x360
[  854.849246][   T73]      netlink_unicast+0x449/0x710
[  854.849246][   T73]      netlink_sendmsg+0x723/0xbe0
[  854.849246][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  854.849246][   T73]      ___sys_sendmsg+0xee/0x170
[  854.849246][   T73]      __sys_sendmsg+0xcd/0x170
[  854.849246][   T73]      do_syscall_64+0xc6/0x1e0
[  854.849246][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  854.849246][   T73] 
[  854.850967][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  854.850967][   T73]      neigh_parms_alloc+0x1e5/0x510
[  854.850967][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  854.850967][   T73]      ipv6_find_idev+0x102/0x170
[  854.850967][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  854.850967][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  854.850967][   T73]      netlink_rcv_skb+0x130/0x360
[  854.850967][   T73]      netlink_unicast+0x449/0x710
[  854.850967][   T73]      netlink_sendmsg+0x723/0xbe0
[  854.850967][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  854.850967][   T73]      ___sys_sendmsg+0xee/0x170
[  854.850967][   T73]      __sys_sendmsg+0xcd/0x170
[  854.850967][   T73]      do_syscall_64+0xc6/0x1e0
[  854.850967][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  854.850967][   T73] 
[  861.479783][   T42] INFO: task modprobe:885 blocked for more than 614 seconds.
[  861.480054][   T42]       Not tainted 6.8.0-virtme #1
[  861.480186][   T42] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  861.480383][   T42] task:modprobe        state:D stack:25856 pid:885   tgid:885   ppid:39     flags:0x00004002
[  861.480627][   T42] Call Trace:
[  861.480762][   T42]  <TASK>
[  861.480833][   T42]  __schedule+0x705/0x1ac0
[  861.480976][   T42]  ? __pfx___schedule+0x10/0x10
[  861.481111][   T42]  ? schedule+0x1a5/0x210
[  861.481207][   T42]  ? __pfx_lock_acquire.part.0+0x10/0x10
[  861.481335][   T42]  ? mark_lock+0x38/0x3e0
[  861.481429][   T42]  ? do_raw_spin_lock+0x131/0x270
[  861.481556][   T42]  ? schedule+0x1a5/0x210
[  861.481666][   T42]  schedule+0xdf/0x210
[  861.481765][   T42]  schedule_preempt_disabled+0x15/0x30
[  861.481889][   T42]  rwsem_down_write_slowpath+0x3af/0xab0
[  861.482018][   T42]  ? __pfx_rwsem_down_write_slowpath+0x10/0x10
[  861.482175][   T42]  ? __pfx_lock_acquire.part.0+0x10/0x10
[  861.482341][   T42]  ? lock_acquire+0x1c1/0x220
[  861.482462][   T42]  ? register_pernet_subsys+0x1a/0x50
[  861.482596][   T42]  down_write+0x1c9/0x200
[  861.482701][   T42]  ? __pfx_down_write+0x10/0x10
[  861.482828][   T42]  ? __lock_release+0x103/0x460
[  861.482957][   T42]  ? __create_object+0x5e/0xb0
[  861.483089][   T42]  ? __pfx___lock_release+0x10/0x10
[  861.483216][   T42]  register_pernet_subsys+0x1a/0x50
[  861.483340][   T42]  tcf_register_action+0xa3/0x600
[  861.483470][   T42]  ? __pfx_pedit_init_module+0x10/0x10 [act_pedit]
[  861.483630][   T42]  do_one_initcall+0xc8/0x3f0
[  861.483764][   T42]  ? __pfx_do_one_initcall+0x10/0x10
[  861.483892][   T42]  ? __create_object+0x5e/0xb0
[  861.484021][   T42]  ? kasan_unpoison+0x27/0x60
[  861.484153][   T42]  do_init_module+0x233/0x740
[  861.484289][   T42]  load_module+0x16b5/0x2350
[  861.484423][   T42]  ? __pfx_load_module+0x10/0x10
[  861.484546][   T42]  ? kernel_read_file+0x3d2/0x520
[  861.484691][   T42]  ? kernel_read_file+0x300/0x520
[  861.484818][   T42]  ? __pfx_kernel_read_file+0x10/0x10
[  861.484949][   T42]  ? init_module_from_file+0xd2/0x130
[  861.485074][   T42]  init_module_from_file+0xd2/0x130
[  861.485199][   T42]  ? __pfx_init_module_from_file+0x10/0x10
[  861.485351][   T42]  ? __lock_release+0x103/0x460
[  861.485474][   T42]  ? idempotent_init_module+0x32a/0x620
[  861.485608][   T42]  ? idempotent_init_module+0x32a/0x620
[  861.485745][   T42]  ? do_raw_spin_unlock+0x58/0x220
[  861.485875][   T42]  idempotent_init_module+0x342/0x620
[  861.486001][   T42]  ? __pfx_idempotent_init_module+0x10/0x10
[  861.486176][   T42]  __x64_sys_finit_module+0xbe/0x130
[  861.486301][   T42]  do_syscall_64+0xc6/0x1e0
[  861.486426][   T42]  entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  861.486581][   T42] RIP: 0033:0x7f505b1e4e5d
[  861.486722][   T42] RSP: 002b:00007ffe4f186f28 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[  861.486907][   T42] RAX: ffffffffffffffda RBX: 000055ce7b6ccc80 RCX: 00007f505b1e4e5d
[  861.487091][   T42] RDX: 0000000000000000 RSI: 000055ce5e14da2a RDI: 0000000000000000
[  861.487275][   T42] RBP: 0000000000040000 R08: 0000000000000000 R09: 00007ffe4f187060
[  861.487462][   T42] R10: 0000000000000000 R11: 0000000000000246 R12: 000055ce5e14da2a
[  861.487654][   T42] R13: 000055ce7b6ccac0 R14: 000055ce7b6cd0b0 R15: 000055ce7b6cccf2
[  861.487849][   T42]  </TASK>
[  861.487944][   T42] 
[  861.487944][   T42] Showing all locks held in the system:
[  861.488124][   T42] 2 locks held by kworker/u20:0/39:
[  861.488253][   T42]  #0: ffff888001161d48 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0
[  861.488503][   T42]  #1: ffffc900002c7da0 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0
[  861.488787][   T42] 1 lock held by khungtaskd/42:
[  861.489032][   T42]  #0: ffffffffaf7591e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x350
[  861.489271][   T42] 3 locks held by kworker/u16:1/73:
[  861.489395][   T42]  #0: ffff88800190a948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0
[  861.489668][   T42]  #1: ffffc900004efda0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0
[  861.489894][   T42]  #2: ffffffffaff6a1d0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xbc/0xb60
[  861.490130][   T42] 1 lock held by modprobe/885:
[  861.490253][   T42]  #0: ffffffffaff6a1d0 (pernet_ops_rwsem){++++}-{3:3}, at: register_pernet_subsys+0x1a/0x50
[  861.490516][   T42] 
[  861.490580][   T42] =============================================
[  861.490580][   T42] 
[  864.935726][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  864.936201][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  864.936201][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  864.936201][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  864.936201][   T73]      fib6_nh_init+0xa22/0x1580
[  864.936201][   T73]      ip6_route_info_create+0xf18/0x17d0
[  864.936201][   T73]      ip6_route_add+0x1c/0x140
[  864.936201][   T73]      inet6_rtm_newroute+0x104/0x110
[  864.936201][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  864.936201][   T73]      netlink_rcv_skb+0x130/0x360
[  864.936201][   T73]      netlink_unicast+0x449/0x710
[  864.936201][   T73]      netlink_sendmsg+0x723/0xbe0
[  864.936201][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  864.936201][   T73]      ___sys_sendmsg+0xee/0x170
[  864.936201][   T73]      __sys_sendmsg+0xcd/0x170
[  864.936201][   T73]      do_syscall_64+0xc6/0x1e0
[  864.936201][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  864.936201][   T73] 
[  864.938203][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  864.938203][   T73]      dst_init+0x84/0x4a0
[  864.938203][   T73]      dst_alloc+0x97/0x150
[  864.938203][   T73]      ip6_dst_alloc+0x23/0x90
[  864.938203][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  864.938203][   T73]      ip6_pol_route+0x56f/0x840
[  864.938203][   T73]      fib6_rule_lookup+0x456/0x630
[  864.938203][   T73]      ip6_route_input+0x59c/0xa50
[  864.938203][   T73]      ipv6_rcv+0x397/0x810
[  864.938203][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  864.938203][   T73]      process_backlog+0x101/0x620
[  864.938203][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  864.938203][   T73]      net_rx_action+0x495/0xbe0
[  864.938203][   T73]      __do_softirq+0x1b5/0x7f6
[  864.938203][   T73] 
[  864.939913][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  864.939913][   T73]      netdev_get_by_index+0x5e/0x80
[  864.939913][   T73]      fib6_nh_init+0x3d8/0x1580
[  864.939913][   T73]      ip6_route_info_create+0xf18/0x17d0
[  864.939913][   T73]      ip6_route_add+0x1c/0x140
[  864.939913][   T73]      addrconf_prefix_route+0x2a6/0x430
[  864.939913][   T73]      inet6_addr_add+0x4f8/0xa40
[  864.939913][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  864.939913][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  864.939913][   T73]      netlink_rcv_skb+0x130/0x360
[  864.939913][   T73]      netlink_unicast+0x449/0x710
[  864.939913][   T73]      netlink_sendmsg+0x723/0xbe0
[  864.939913][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  864.939913][   T73]      ___sys_sendmsg+0xee/0x170
[  864.939913][   T73]      __sys_sendmsg+0xcd/0x170
[  864.939913][   T73]      do_syscall_64+0xc6/0x1e0
[  864.939913][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  864.939913][   T73] 
[  864.942019][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  864.942019][   T73]      netdev_get_by_index+0x5e/0x80
[  864.942019][   T73]      fib6_nh_init+0x3d8/0x1580
[  864.942019][   T73]      ip6_route_info_create+0xf18/0x17d0
[  864.942019][   T73]      addrconf_f6i_alloc+0x315/0x560
[  864.942019][   T73]      ipv6_add_addr+0x411/0x2000
[  864.942019][   T73]      inet6_addr_add+0x30e/0xa40
[  864.942019][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  864.942019][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  864.942019][   T73]      netlink_rcv_skb+0x130/0x360
[  864.942019][   T73]      netlink_unicast+0x449/0x710
[  864.942019][   T73]      netlink_sendmsg+0x723/0xbe0
[  864.942019][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  864.942019][   T73]      ___sys_sendmsg+0xee/0x170
[  864.942019][   T73]      __sys_sendmsg+0xcd/0x170
[  864.942019][   T73]      do_syscall_64+0xc6/0x1e0
[  864.942019][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  864.942019][   T73] 
[  864.944140][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  864.944140][   T73]      netdev_get_by_index+0x5e/0x80
[  864.944140][   T73]      fib6_nh_init+0x3d8/0x1580
[  864.944140][   T73]      ip6_route_info_create+0xf18/0x17d0
[  864.944140][   T73]      ip6_route_add+0x1c/0x140
[  864.944140][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  864.944140][   T73]      addrconf_add_dev+0xe2/0x170
[  864.944140][   T73]      inet6_addr_add+0x12f/0xa40
[  864.944140][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  864.944140][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  864.944140][   T73]      netlink_rcv_skb+0x130/0x360
[  864.944140][   T73]      netlink_unicast+0x449/0x710
[  864.944140][   T73]      netlink_sendmsg+0x723/0xbe0
[  864.944140][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  864.944140][   T73]      ___sys_sendmsg+0xee/0x170
[  864.944140][   T73]      __sys_sendmsg+0xcd/0x170
[  864.944140][   T73]      do_syscall_64+0xc6/0x1e0
[  864.944140][   T73] 
[  864.946209][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  864.946209][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  864.946209][   T73]      ipv6_find_idev+0x102/0x170
[  864.946209][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  864.946209][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  864.946209][   T73]      netlink_rcv_skb+0x130/0x360
[  864.946209][   T73]      netlink_unicast+0x449/0x710
[  864.946209][   T73]      netlink_sendmsg+0x723/0xbe0
[  864.946209][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  864.946209][   T73]      ___sys_sendmsg+0xee/0x170
[  864.946209][   T73]      __sys_sendmsg+0xcd/0x170
[  864.946209][   T73]      do_syscall_64+0xc6/0x1e0
[  864.946209][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  864.946209][   T73] 
[  864.947818][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  864.947818][   T73]      neigh_parms_alloc+0x1e5/0x510
[  864.947818][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  864.947818][   T73]      ipv6_find_idev+0x102/0x170
[  864.947818][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  864.947818][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  864.947818][   T73]      netlink_rcv_skb+0x130/0x360
[  864.947818][   T73]      netlink_unicast+0x449/0x710
[  864.947818][   T73]      netlink_sendmsg+0x723/0xbe0
[  864.947818][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  864.947818][   T73]      ___sys_sendmsg+0xee/0x170
[  864.947818][   T73]      __sys_sendmsg+0xcd/0x170
[  864.947818][   T73]      do_syscall_64+0xc6/0x1e0
[  864.947818][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  864.947818][   T73] 
[  864.949616][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  864.949924][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  864.949924][   T73]      netdev_get_by_index+0x5e/0x80
[  864.949924][   T73]      fib6_nh_init+0x3d8/0x1580
[  864.949924][   T73]      ip6_route_info_create+0xf18/0x17d0
[  864.949924][   T73]      addrconf_f6i_alloc+0x265/0x560
[  864.949924][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  864.949924][   T73]      addrconf_join_anycast+0x1c0/0x220
[  864.949924][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  864.949924][   T73]      addrconf_dad_completed+0x12b/0xe20
[  864.949924][   T73]      addrconf_dad_begin+0x310/0x670
[  864.949924][   T73]      addrconf_dad_work+0x10b/0xab0
[  864.949924][   T73]      process_one_work+0x84d/0x18a0
[  864.949924][   T73]      worker_thread+0x587/0xd30
[  864.949924][   T73]      kthread+0x28a/0x350
[  864.949924][   T73]      ret_from_fork+0x31/0x70
[  864.949924][   T73]      ret_from_fork_asm+0x1a/0x30
[  864.949924][   T73] 
[  864.951937][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  864.951937][   T73]      netdev_get_by_index+0x5e/0x80
[  864.951937][   T73]      fib6_nh_init+0x3d8/0x1580
[  864.951937][   T73]      ip6_route_info_create+0xf18/0x17d0
[  864.951937][   T73]      ip6_route_add+0x1c/0x140
[  864.951937][   T73]      addrconf_prefix_route+0x2a6/0x430
[  864.951937][   T73]      inet6_addr_add+0x4f8/0xa40
[  864.951937][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  864.951937][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  864.951937][   T73]      netlink_rcv_skb+0x130/0x360
[  864.951937][   T73]      netlink_unicast+0x449/0x710
[  864.951937][   T73]      netlink_sendmsg+0x723/0xbe0
[  864.951937][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  864.951937][   T73]      ___sys_sendmsg+0xee/0x170
[  864.951937][   T73]      __sys_sendmsg+0xcd/0x170
[  864.951937][   T73]      do_syscall_64+0xc6/0x1e0
[  864.951937][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  864.951937][   T73] 
[  864.954035][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  864.954035][   T73]      netdev_get_by_index+0x5e/0x80
[  864.954035][   T73]      fib6_nh_init+0x3d8/0x1580
[  864.954035][   T73]      ip6_route_info_create+0xf18/0x17d0
[  864.954035][   T73]      addrconf_f6i_alloc+0x315/0x560
[  864.954035][   T73]      ipv6_add_addr+0x411/0x2000
[  864.954035][   T73]      inet6_addr_add+0x30e/0xa40
[  864.954035][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  864.954035][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  864.954035][   T73]      netlink_rcv_skb+0x130/0x360
[  864.954035][   T73]      netlink_unicast+0x449/0x710
[  864.954035][   T73]      netlink_sendmsg+0x723/0xbe0
[  864.954035][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  864.954035][   T73]      ___sys_sendmsg+0xee/0x170
[  864.954035][   T73]      __sys_sendmsg+0xcd/0x170
[  864.954035][   T73]      do_syscall_64+0xc6/0x1e0
[  864.954035][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  864.954035][   T73] 
[  864.956131][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  864.956131][   T73]      netdev_get_by_index+0x5e/0x80
[  864.956131][   T73]      fib6_nh_init+0x3d8/0x1580
[  864.956131][   T73]      ip6_route_info_create+0xf18/0x17d0
[  864.956131][   T73]      ip6_route_add+0x1c/0x140
[  864.956131][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  864.956131][   T73]      addrconf_add_dev+0xe2/0x170
[  864.956131][   T73]      inet6_addr_add+0x12f/0xa40
[  864.956131][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  864.956131][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  864.956131][   T73]      netlink_rcv_skb+0x130/0x360
[  864.956131][   T73]      netlink_unicast+0x449/0x710
[  864.956131][   T73]      netlink_sendmsg+0x723/0xbe0
[  864.956131][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  864.956131][   T73]      ___sys_sendmsg+0xee/0x170
[  864.956131][   T73]      __sys_sendmsg+0xcd/0x170
[  864.956131][   T73]      do_syscall_64+0xc6/0x1e0
[  864.956131][   T73] 
[  864.958191][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  864.958191][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  864.958191][   T73]      ipv6_find_idev+0x102/0x170
[  864.958191][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  864.958191][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  864.958191][   T73]      netlink_rcv_skb+0x130/0x360
[  864.958191][   T73]      netlink_unicast+0x449/0x710
[  864.958191][   T73]      netlink_sendmsg+0x723/0xbe0
[  864.958191][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  864.958191][   T73]      ___sys_sendmsg+0xee/0x170
[  864.958191][   T73]      __sys_sendmsg+0xcd/0x170
[  864.958191][   T73]      do_syscall_64+0xc6/0x1e0
[  864.958191][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  864.958191][   T73] 
[  864.959794][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  864.959794][   T73]      neigh_parms_alloc+0x1e5/0x510
[  864.959794][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  864.959794][   T73]      ipv6_find_idev+0x102/0x170
[  864.959794][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  864.959794][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  864.959794][   T73]      netlink_rcv_skb+0x130/0x360
[  864.959794][   T73]      netlink_unicast+0x449/0x710
[  864.959794][   T73]      netlink_sendmsg+0x723/0xbe0
[  864.959794][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  864.959794][   T73]      ___sys_sendmsg+0xee/0x170
[  864.959794][   T73]      __sys_sendmsg+0xcd/0x170
[  864.959794][   T73]      do_syscall_64+0xc6/0x1e0
[  864.959794][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  864.959794][   T73] 
[  864.961575][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  864.962293][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  864.962293][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  864.962293][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  864.962293][   T73]      fib6_nh_init+0xa22/0x1580
[  864.962293][   T73]      ip6_route_info_create+0xf18/0x17d0
[  864.962293][   T73]      ip6_route_add+0x1c/0x140
[  864.962293][   T73]      inet6_rtm_newroute+0x104/0x110
[  864.962293][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  864.962293][   T73]      netlink_rcv_skb+0x130/0x360
[  864.962293][   T73]      netlink_unicast+0x449/0x710
[  864.962293][   T73]      netlink_sendmsg+0x723/0xbe0
[  864.962293][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  864.962293][   T73]      ___sys_sendmsg+0xee/0x170
[  864.962293][   T73]      __sys_sendmsg+0xcd/0x170
[  864.962293][   T73]      do_syscall_64+0xc6/0x1e0
[  864.962293][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  864.962293][   T73] 
[  864.964175][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  864.964175][   T73]      dst_init+0x84/0x4a0
[  864.964175][   T73]      dst_alloc+0x97/0x150
[  864.964175][   T73]      ip6_dst_alloc+0x23/0x90
[  864.964175][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  864.964175][   T73]      ip6_pol_route+0x56f/0x840
[  864.964175][   T73]      fib6_rule_lookup+0x456/0x630
[  864.964175][   T73]      ip6_route_input+0x59c/0xa50
[  864.964175][   T73]      ipv6_rcv+0x397/0x810
[  864.964175][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  864.964175][   T73]      process_backlog+0x101/0x620
[  864.964175][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  864.964175][   T73]      net_rx_action+0x495/0xbe0
[  864.964175][   T73]      __do_softirq+0x1b5/0x7f6
[  864.964175][   T73] 
[  864.965826][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  864.965826][   T73]      netdev_get_by_index+0x5e/0x80
[  864.965826][   T73]      fib6_nh_init+0x3d8/0x1580
[  864.965826][   T73]      ip6_route_info_create+0xf18/0x17d0
[  864.965826][   T73]      ip6_route_add+0x1c/0x140
[  864.965826][   T73]      addrconf_prefix_route+0x2a6/0x430
[  864.965826][   T73]      inet6_addr_add+0x4f8/0xa40
[  864.965826][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  864.965826][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  864.965826][   T73]      netlink_rcv_skb+0x130/0x360
[  864.965826][   T73]      netlink_unicast+0x449/0x710
[  864.965826][   T73]      netlink_sendmsg+0x723/0xbe0
[  864.965826][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  864.965826][   T73]      ___sys_sendmsg+0xee/0x170
[  864.965826][   T73]      __sys_sendmsg+0xcd/0x170
[  864.965826][   T73]      do_syscall_64+0xc6/0x1e0
[  864.965826][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  864.965826][   T73] 
[  864.968084][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  864.968084][   T73]      netdev_get_by_index+0x5e/0x80
[  864.968084][   T73]      fib6_nh_init+0x3d8/0x1580
[  864.968084][   T73]      ip6_route_info_create+0xf18/0x17d0
[  864.968084][   T73]      addrconf_f6i_alloc+0x315/0x560
[  864.968084][   T73]      ipv6_add_addr+0x411/0x2000
[  864.968084][   T73]      inet6_addr_add+0x30e/0xa40
[  864.968084][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  864.968084][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  864.968084][   T73]      netlink_rcv_skb+0x130/0x360
[  864.968084][   T73]      netlink_unicast+0x449/0x710
[  864.968084][   T73]      netlink_sendmsg+0x723/0xbe0
[  864.968084][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  864.968084][   T73]      ___sys_sendmsg+0xee/0x170
[  864.968084][   T73]      __sys_sendmsg+0xcd/0x170
[  864.968084][   T73]      do_syscall_64+0xc6/0x1e0
[  864.968084][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  864.968084][   T73] 
[  864.970346][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  864.970346][   T73]      netdev_get_by_index+0x5e/0x80
[  864.970346][   T73]      fib6_nh_init+0x3d8/0x1580
[  864.970346][   T73]      ip6_route_info_create+0xf18/0x17d0
[  864.970346][   T73]      ip6_route_add+0x1c/0x140
[  864.970346][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  864.970346][   T73]      addrconf_add_dev+0xe2/0x170
[  864.970346][   T73]      inet6_addr_add+0x12f/0xa40
[  864.970346][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  864.970346][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  864.970346][   T73]      netlink_rcv_skb+0x130/0x360
[  864.970346][   T73]      netlink_unicast+0x449/0x710
[  864.970346][   T73]      netlink_sendmsg+0x723/0xbe0
[  864.970346][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  864.970346][   T73]      ___sys_sendmsg+0xee/0x170
[  864.970346][   T73]      __sys_sendmsg+0xcd/0x170
[  864.970346][   T73]      do_syscall_64+0xc6/0x1e0
[  864.970346][   T73] 
[  864.972512][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  864.972512][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  864.972512][   T73]      ipv6_find_idev+0x102/0x170
[  864.972512][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  864.972512][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  864.972512][   T73]      netlink_rcv_skb+0x130/0x360
[  864.972512][   T73]      netlink_unicast+0x449/0x710
[  864.972512][   T73]      netlink_sendmsg+0x723/0xbe0
[  864.972512][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  864.972512][   T73]      ___sys_sendmsg+0xee/0x170
[  864.972512][   T73]      __sys_sendmsg+0xcd/0x170
[  864.972512][   T73]      do_syscall_64+0xc6/0x1e0
[  864.972512][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  864.972512][   T73] 
[  864.974308][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  864.974308][   T73]      neigh_parms_alloc+0x1e5/0x510
[  864.974308][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  864.974308][   T73]      ipv6_find_idev+0x102/0x170
[  864.974308][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  864.974308][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  864.974308][   T73]      netlink_rcv_skb+0x130/0x360
[  864.974308][   T73]      netlink_unicast+0x449/0x710
[  864.974308][   T73]      netlink_sendmsg+0x723/0xbe0
[  864.974308][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  864.974308][   T73]      ___sys_sendmsg+0xee/0x170
[  864.974308][   T73]      __sys_sendmsg+0xcd/0x170
[  864.974308][   T73]      do_syscall_64+0xc6/0x1e0
[  864.974308][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  864.974308][   T73] 
[  864.976313][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  864.976586][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  864.976586][   T73]      netdev_get_by_index+0x5e/0x80
[  864.976586][   T73]      fib6_nh_init+0x3d8/0x1580
[  864.976586][   T73]      ip6_route_info_create+0xf18/0x17d0
[  864.976586][   T73]      addrconf_f6i_alloc+0x265/0x560
[  864.976586][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  864.976586][   T73]      addrconf_join_anycast+0x1c0/0x220
[  864.976586][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  864.976586][   T73]      addrconf_dad_completed+0x12b/0xe20
[  864.976586][   T73]      addrconf_dad_begin+0x310/0x670
[  864.976586][   T73]      addrconf_dad_work+0x10b/0xab0
[  864.976586][   T73]      process_one_work+0x84d/0x18a0
[  864.976586][   T73]      worker_thread+0x587/0xd30
[  864.976586][   T73]      kthread+0x28a/0x350
[  864.976586][   T73]      ret_from_fork+0x31/0x70
[  864.976586][   T73]      ret_from_fork_asm+0x1a/0x30
[  864.976586][   T73] 
[  864.978691][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  864.978691][   T73]      netdev_get_by_index+0x5e/0x80
[  864.978691][   T73]      fib6_nh_init+0x3d8/0x1580
[  864.978691][   T73]      ip6_route_info_create+0xf18/0x17d0
[  864.978691][   T73]      ip6_route_add+0x1c/0x140
[  864.978691][   T73]      addrconf_prefix_route+0x2a6/0x430
[  864.978691][   T73]      inet6_addr_add+0x4f8/0xa40
[  864.978691][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  864.978691][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  864.978691][   T73]      netlink_rcv_skb+0x130/0x360
[  864.978691][   T73]      netlink_unicast+0x449/0x710
[  864.978691][   T73]      netlink_sendmsg+0x723/0xbe0
[  864.978691][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  864.978691][   T73]      ___sys_sendmsg+0xee/0x170
[  864.978691][   T73]      __sys_sendmsg+0xcd/0x170
[  864.978691][   T73]      do_syscall_64+0xc6/0x1e0
[  864.978691][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  864.978691][   T73] 
[  864.980920][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  864.980920][   T73]      netdev_get_by_index+0x5e/0x80
[  864.980920][   T73]      fib6_nh_init+0x3d8/0x1580
[  864.980920][   T73]      ip6_route_info_create+0xf18/0x17d0
[  864.980920][   T73]      addrconf_f6i_alloc+0x315/0x560
[  864.980920][   T73]      ipv6_add_addr+0x411/0x2000
[  864.980920][   T73]      inet6_addr_add+0x30e/0xa40
[  864.980920][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  864.980920][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  864.980920][   T73]      netlink_rcv_skb+0x130/0x360
[  864.980920][   T73]      netlink_unicast+0x449/0x710
[  864.980920][   T73]      netlink_sendmsg+0x723/0xbe0
[  864.980920][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  864.980920][   T73]      ___sys_sendmsg+0xee/0x170
[  864.980920][   T73]      __sys_sendmsg+0xcd/0x170
[  864.980920][   T73]      do_syscall_64+0xc6/0x1e0
[  864.980920][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  864.980920][   T73] 
[  864.983303][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  864.983303][   T73]      netdev_get_by_index+0x5e/0x80
[  864.983303][   T73]      fib6_nh_init+0x3d8/0x1580
[  864.983303][   T73]      ip6_route_info_create+0xf18/0x17d0
[  864.983303][   T73]      ip6_route_add+0x1c/0x140
[  864.983303][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  864.983303][   T73]      addrconf_add_dev+0xe2/0x170
[  864.983303][   T73]      inet6_addr_add+0x12f/0xa40
[  864.983303][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  864.983303][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  864.983303][   T73]      netlink_rcv_skb+0x130/0x360
[  864.983303][   T73]      netlink_unicast+0x449/0x710
[  864.983303][   T73]      netlink_sendmsg+0x723/0xbe0
[  864.983303][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  864.983303][   T73]      ___sys_sendmsg+0xee/0x170
[  864.983303][   T73]      __sys_sendmsg+0xcd/0x170
[  864.983303][   T73]      do_syscall_64+0xc6/0x1e0
[  864.983303][   T73] 
[  864.985437][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  864.985437][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  864.985437][   T73]      ipv6_find_idev+0x102/0x170
[  864.985437][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  864.985437][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  864.985437][   T73]      netlink_rcv_skb+0x130/0x360
[  864.985437][   T73]      netlink_unicast+0x449/0x710
[  864.985437][   T73]      netlink_sendmsg+0x723/0xbe0
[  864.985437][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  864.985437][   T73]      ___sys_sendmsg+0xee/0x170
[  864.985437][   T73]      __sys_sendmsg+0xcd/0x170
[  864.985437][   T73]      do_syscall_64+0xc6/0x1e0
[  864.985437][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  864.985437][   T73] 
[  864.987171][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  864.987171][   T73]      neigh_parms_alloc+0x1e5/0x510
[  864.987171][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  864.987171][   T73]      ipv6_find_idev+0x102/0x170
[  864.987171][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  864.987171][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  864.987171][   T73]      netlink_rcv_skb+0x130/0x360
[  864.987171][   T73]      netlink_unicast+0x449/0x710
[  864.987171][   T73]      netlink_sendmsg+0x723/0xbe0
[  864.987171][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  864.987171][   T73]      ___sys_sendmsg+0xee/0x170
[  864.987171][   T73]      __sys_sendmsg+0xcd/0x170
[  864.987171][   T73]      do_syscall_64+0xc6/0x1e0
[  864.987171][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  864.987171][   T73] 
[  875.335768][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  875.336157][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  875.336157][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  875.336157][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  875.336157][   T73]      fib6_nh_init+0xa22/0x1580
[  875.336157][   T73]      ip6_route_info_create+0xf18/0x17d0
[  875.336157][   T73]      ip6_route_add+0x1c/0x140
[  875.336157][   T73]      inet6_rtm_newroute+0x104/0x110
[  875.336157][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  875.336157][   T73]      netlink_rcv_skb+0x130/0x360
[  875.336157][   T73]      netlink_unicast+0x449/0x710
[  875.336157][   T73]      netlink_sendmsg+0x723/0xbe0
[  875.336157][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  875.336157][   T73]      ___sys_sendmsg+0xee/0x170
[  875.336157][   T73]      __sys_sendmsg+0xcd/0x170
[  875.336157][   T73]      do_syscall_64+0xc6/0x1e0
[  875.336157][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  875.336157][   T73] 
[  875.338052][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  875.338052][   T73]      dst_init+0x84/0x4a0
[  875.338052][   T73]      dst_alloc+0x97/0x150
[  875.338052][   T73]      ip6_dst_alloc+0x23/0x90
[  875.338052][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  875.338052][   T73]      ip6_pol_route+0x56f/0x840
[  875.338052][   T73]      fib6_rule_lookup+0x456/0x630
[  875.338052][   T73]      ip6_route_input+0x59c/0xa50
[  875.338052][   T73]      ipv6_rcv+0x397/0x810
[  875.338052][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  875.338052][   T73]      process_backlog+0x101/0x620
[  875.338052][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  875.338052][   T73]      net_rx_action+0x495/0xbe0
[  875.338052][   T73]      __do_softirq+0x1b5/0x7f6
[  875.338052][   T73] 
[  875.339684][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  875.339684][   T73]      netdev_get_by_index+0x5e/0x80
[  875.339684][   T73]      fib6_nh_init+0x3d8/0x1580
[  875.339684][   T73]      ip6_route_info_create+0xf18/0x17d0
[  875.339684][   T73]      ip6_route_add+0x1c/0x140
[  875.339684][   T73]      addrconf_prefix_route+0x2a6/0x430
[  875.339684][   T73]      inet6_addr_add+0x4f8/0xa40
[  875.339684][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  875.339684][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  875.339684][   T73]      netlink_rcv_skb+0x130/0x360
[  875.339684][   T73]      netlink_unicast+0x449/0x710
[  875.339684][   T73]      netlink_sendmsg+0x723/0xbe0
[  875.339684][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  875.339684][   T73]      ___sys_sendmsg+0xee/0x170
[  875.339684][   T73]      __sys_sendmsg+0xcd/0x170
[  875.339684][   T73]      do_syscall_64+0xc6/0x1e0
[  875.339684][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  875.339684][   T73] 
[  875.341685][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  875.341685][   T73]      netdev_get_by_index+0x5e/0x80
[  875.341685][   T73]      fib6_nh_init+0x3d8/0x1580
[  875.341685][   T73]      ip6_route_info_create+0xf18/0x17d0
[  875.341685][   T73]      addrconf_f6i_alloc+0x315/0x560
[  875.341685][   T73]      ipv6_add_addr+0x411/0x2000
[  875.341685][   T73]      inet6_addr_add+0x30e/0xa40
[  875.341685][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  875.341685][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  875.341685][   T73]      netlink_rcv_skb+0x130/0x360
[  875.341685][   T73]      netlink_unicast+0x449/0x710
[  875.341685][   T73]      netlink_sendmsg+0x723/0xbe0
[  875.341685][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  875.341685][   T73]      ___sys_sendmsg+0xee/0x170
[  875.341685][   T73]      __sys_sendmsg+0xcd/0x170
[  875.341685][   T73]      do_syscall_64+0xc6/0x1e0
[  875.341685][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  875.341685][   T73] 
[  875.343684][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  875.343684][   T73]      netdev_get_by_index+0x5e/0x80
[  875.343684][   T73]      fib6_nh_init+0x3d8/0x1580
[  875.343684][   T73]      ip6_route_info_create+0xf18/0x17d0
[  875.343684][   T73]      ip6_route_add+0x1c/0x140
[  875.343684][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  875.343684][   T73]      addrconf_add_dev+0xe2/0x170
[  875.343684][   T73]      inet6_addr_add+0x12f/0xa40
[  875.343684][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  875.343684][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  875.343684][   T73]      netlink_rcv_skb+0x130/0x360
[  875.343684][   T73]      netlink_unicast+0x449/0x710
[  875.343684][   T73]      netlink_sendmsg+0x723/0xbe0
[  875.343684][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  875.343684][   T73]      ___sys_sendmsg+0xee/0x170
[  875.343684][   T73]      __sys_sendmsg+0xcd/0x170
[  875.343684][   T73]      do_syscall_64+0xc6/0x1e0
[  875.343684][   T73] 
[  875.345648][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  875.345648][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  875.345648][   T73]      ipv6_find_idev+0x102/0x170
[  875.345648][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  875.345648][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  875.345648][   T73]      netlink_rcv_skb+0x130/0x360
[  875.345648][   T73]      netlink_unicast+0x449/0x710
[  875.345648][   T73]      netlink_sendmsg+0x723/0xbe0
[  875.345648][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  875.345648][   T73]      ___sys_sendmsg+0xee/0x170
[  875.345648][   T73]      __sys_sendmsg+0xcd/0x170
[  875.345648][   T73]      do_syscall_64+0xc6/0x1e0
[  875.345648][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  875.345648][   T73] 
[  875.347188][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  875.347188][   T73]      neigh_parms_alloc+0x1e5/0x510
[  875.347188][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  875.347188][   T73]      ipv6_find_idev+0x102/0x170
[  875.347188][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  875.347188][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  875.347188][   T73]      netlink_rcv_skb+0x130/0x360
[  875.347188][   T73]      netlink_unicast+0x449/0x710
[  875.347188][   T73]      netlink_sendmsg+0x723/0xbe0
[  875.347188][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  875.347188][   T73]      ___sys_sendmsg+0xee/0x170
[  875.347188][   T73]      __sys_sendmsg+0xcd/0x170
[  875.347188][   T73]      do_syscall_64+0xc6/0x1e0
[  875.347188][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  875.347188][   T73] 
[  875.348887][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  875.349161][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  875.349161][   T73]      netdev_get_by_index+0x5e/0x80
[  875.349161][   T73]      fib6_nh_init+0x3d8/0x1580
[  875.349161][   T73]      ip6_route_info_create+0xf18/0x17d0
[  875.349161][   T73]      addrconf_f6i_alloc+0x265/0x560
[  875.349161][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  875.349161][   T73]      addrconf_join_anycast+0x1c0/0x220
[  875.349161][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  875.349161][   T73]      addrconf_dad_completed+0x12b/0xe20
[  875.349161][   T73]      addrconf_dad_begin+0x310/0x670
[  875.349161][   T73]      addrconf_dad_work+0x10b/0xab0
[  875.349161][   T73]      process_one_work+0x84d/0x18a0
[  875.349161][   T73]      worker_thread+0x587/0xd30
[  875.349161][   T73]      kthread+0x28a/0x350
[  875.349161][   T73]      ret_from_fork+0x31/0x70
[  875.349161][   T73]      ret_from_fork_asm+0x1a/0x30
[  875.349161][   T73] 
[  875.351062][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  875.351062][   T73]      netdev_get_by_index+0x5e/0x80
[  875.351062][   T73]      fib6_nh_init+0x3d8/0x1580
[  875.351062][   T73]      ip6_route_info_create+0xf18/0x17d0
[  875.351062][   T73]      ip6_route_add+0x1c/0x140
[  875.351062][   T73]      addrconf_prefix_route+0x2a6/0x430
[  875.351062][   T73]      inet6_addr_add+0x4f8/0xa40
[  875.351062][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  875.351062][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  875.351062][   T73]      netlink_rcv_skb+0x130/0x360
[  875.351062][   T73]      netlink_unicast+0x449/0x710
[  875.351062][   T73]      netlink_sendmsg+0x723/0xbe0
[  875.351062][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  875.351062][   T73]      ___sys_sendmsg+0xee/0x170
[  875.351062][   T73]      __sys_sendmsg+0xcd/0x170
[  875.351062][   T73]      do_syscall_64+0xc6/0x1e0
[  875.351062][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  875.351062][   T73] 
[  875.353053][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  875.353053][   T73]      netdev_get_by_index+0x5e/0x80
[  875.353053][   T73]      fib6_nh_init+0x3d8/0x1580
[  875.353053][   T73]      ip6_route_info_create+0xf18/0x17d0
[  875.353053][   T73]      addrconf_f6i_alloc+0x315/0x560
[  875.353053][   T73]      ipv6_add_addr+0x411/0x2000
[  875.353053][   T73]      inet6_addr_add+0x30e/0xa40
[  875.353053][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  875.353053][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  875.353053][   T73]      netlink_rcv_skb+0x130/0x360
[  875.353053][   T73]      netlink_unicast+0x449/0x710
[  875.353053][   T73]      netlink_sendmsg+0x723/0xbe0
[  875.353053][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  875.353053][   T73]      ___sys_sendmsg+0xee/0x170
[  875.353053][   T73]      __sys_sendmsg+0xcd/0x170
[  875.353053][   T73]      do_syscall_64+0xc6/0x1e0
[  875.353053][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  875.353053][   T73] 
[  875.355041][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  875.355041][   T73]      netdev_get_by_index+0x5e/0x80
[  875.355041][   T73]      fib6_nh_init+0x3d8/0x1580
[  875.355041][   T73]      ip6_route_info_create+0xf18/0x17d0
[  875.355041][   T73]      ip6_route_add+0x1c/0x140
[  875.355041][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  875.355041][   T73]      addrconf_add_dev+0xe2/0x170
[  875.355041][   T73]      inet6_addr_add+0x12f/0xa40
[  875.355041][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  875.355041][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  875.355041][   T73]      netlink_rcv_skb+0x130/0x360
[  875.355041][   T73]      netlink_unicast+0x449/0x710
[  875.355041][   T73]      netlink_sendmsg+0x723/0xbe0
[  875.355041][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  875.355041][   T73]      ___sys_sendmsg+0xee/0x170
[  875.355041][   T73]      __sys_sendmsg+0xcd/0x170
[  875.355041][   T73]      do_syscall_64+0xc6/0x1e0
[  875.355041][   T73] 
[  875.356997][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  875.356997][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  875.356997][   T73]      ipv6_find_idev+0x102/0x170
[  875.356997][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  875.356997][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  875.356997][   T73]      netlink_rcv_skb+0x130/0x360
[  875.356997][   T73]      netlink_unicast+0x449/0x710
[  875.356997][   T73]      netlink_sendmsg+0x723/0xbe0
[  875.356997][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  875.356997][   T73]      ___sys_sendmsg+0xee/0x170
[  875.356997][   T73]      __sys_sendmsg+0xcd/0x170
[  875.356997][   T73]      do_syscall_64+0xc6/0x1e0
[  875.356997][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  875.356997][   T73] 
[  875.358528][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  875.358528][   T73]      neigh_parms_alloc+0x1e5/0x510
[  875.358528][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  875.358528][   T73]      ipv6_find_idev+0x102/0x170
[  875.358528][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  875.358528][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  875.358528][   T73]      netlink_rcv_skb+0x130/0x360
[  875.358528][   T73]      netlink_unicast+0x449/0x710
[  875.358528][   T73]      netlink_sendmsg+0x723/0xbe0
[  875.358528][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  875.358528][   T73]      ___sys_sendmsg+0xee/0x170
[  875.358528][   T73]      __sys_sendmsg+0xcd/0x170
[  875.358528][   T73]      do_syscall_64+0xc6/0x1e0
[  875.358528][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  875.358528][   T73] 
[  875.360196][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  875.360461][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  875.360461][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  875.360461][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  875.360461][   T73]      fib6_nh_init+0xa22/0x1580
[  875.360461][   T73]      ip6_route_info_create+0xf18/0x17d0
[  875.360461][   T73]      ip6_route_add+0x1c/0x140
[  875.360461][   T73]      inet6_rtm_newroute+0x104/0x110
[  875.360461][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  875.360461][   T73]      netlink_rcv_skb+0x130/0x360
[  875.360461][   T73]      netlink_unicast+0x449/0x710
[  875.360461][   T73]      netlink_sendmsg+0x723/0xbe0
[  875.360461][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  875.360461][   T73]      ___sys_sendmsg+0xee/0x170
[  875.360461][   T73]      __sys_sendmsg+0xcd/0x170
[  875.360461][   T73]      do_syscall_64+0xc6/0x1e0
[  875.360461][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  875.360461][   T73] 
[  875.362549][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  875.362549][   T73]      dst_init+0x84/0x4a0
[  875.362549][   T73]      dst_alloc+0x97/0x150
[  875.362549][   T73]      ip6_dst_alloc+0x23/0x90
[  875.362549][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  875.362549][   T73]      ip6_pol_route+0x56f/0x840
[  875.362549][   T73]      fib6_rule_lookup+0x456/0x630
[  875.362549][   T73]      ip6_route_input+0x59c/0xa50
[  875.362549][   T73]      ipv6_rcv+0x397/0x810
[  875.362549][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  875.362549][   T73]      process_backlog+0x101/0x620
[  875.362549][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  875.362549][   T73]      net_rx_action+0x495/0xbe0
[  875.362549][   T73]      __do_softirq+0x1b5/0x7f6
[  875.362549][   T73] 
[  875.364356][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  875.364356][   T73]      netdev_get_by_index+0x5e/0x80
[  875.364356][   T73]      fib6_nh_init+0x3d8/0x1580
[  875.364356][   T73]      ip6_route_info_create+0xf18/0x17d0
[  875.364356][   T73]      ip6_route_add+0x1c/0x140
[  875.364356][   T73]      addrconf_prefix_route+0x2a6/0x430
[  875.364356][   T73]      inet6_addr_add+0x4f8/0xa40
[  875.364356][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  875.364356][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  875.364356][   T73]      netlink_rcv_skb+0x130/0x360
[  875.364356][   T73]      netlink_unicast+0x449/0x710
[  875.364356][   T73]      netlink_sendmsg+0x723/0xbe0
[  875.364356][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  875.364356][   T73]      ___sys_sendmsg+0xee/0x170
[  875.364356][   T73]      __sys_sendmsg+0xcd/0x170
[  875.364356][   T73]      do_syscall_64+0xc6/0x1e0
[  875.364356][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  875.364356][   T73] 
[  875.366602][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  875.366602][   T73]      netdev_get_by_index+0x5e/0x80
[  875.366602][   T73]      fib6_nh_init+0x3d8/0x1580
[  875.366602][   T73]      ip6_route_info_create+0xf18/0x17d0
[  875.366602][   T73]      addrconf_f6i_alloc+0x315/0x560
[  875.366602][   T73]      ipv6_add_addr+0x411/0x2000
[  875.366602][   T73]      inet6_addr_add+0x30e/0xa40
[  875.366602][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  875.366602][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  875.366602][   T73]      netlink_rcv_skb+0x130/0x360
[  875.366602][   T73]      netlink_unicast+0x449/0x710
[  875.366602][   T73]      netlink_sendmsg+0x723/0xbe0
[  875.366602][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  875.366602][   T73]      ___sys_sendmsg+0xee/0x170
[  875.366602][   T73]      __sys_sendmsg+0xcd/0x170
[  875.366602][   T73]      do_syscall_64+0xc6/0x1e0
[  875.366602][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  875.366602][   T73] 
[  875.368836][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  875.368836][   T73]      netdev_get_by_index+0x5e/0x80
[  875.368836][   T73]      fib6_nh_init+0x3d8/0x1580
[  875.368836][   T73]      ip6_route_info_create+0xf18/0x17d0
[  875.368836][   T73]      ip6_route_add+0x1c/0x140
[  875.368836][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  875.368836][   T73]      addrconf_add_dev+0xe2/0x170
[  875.368836][   T73]      inet6_addr_add+0x12f/0xa40
[  875.368836][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  875.368836][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  875.368836][   T73]      netlink_rcv_skb+0x130/0x360
[  875.368836][   T73]      netlink_unicast+0x449/0x710
[  875.368836][   T73]      netlink_sendmsg+0x723/0xbe0
[  875.368836][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  875.368836][   T73]      ___sys_sendmsg+0xee/0x170
[  875.368836][   T73]      __sys_sendmsg+0xcd/0x170
[  875.368836][   T73]      do_syscall_64+0xc6/0x1e0
[  875.368836][   T73] 
[  875.370987][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  875.370987][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  875.370987][   T73]      ipv6_find_idev+0x102/0x170
[  875.370987][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  875.370987][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  875.370987][   T73]      netlink_rcv_skb+0x130/0x360
[  875.370987][   T73]      netlink_unicast+0x449/0x710
[  875.370987][   T73]      netlink_sendmsg+0x723/0xbe0
[  875.370987][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  875.370987][   T73]      ___sys_sendmsg+0xee/0x170
[  875.370987][   T73]      __sys_sendmsg+0xcd/0x170
[  875.370987][   T73]      do_syscall_64+0xc6/0x1e0
[  875.370987][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  875.370987][   T73] 
[  875.372645][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  875.372645][   T73]      neigh_parms_alloc+0x1e5/0x510
[  875.372645][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  875.372645][   T73]      ipv6_find_idev+0x102/0x170
[  875.372645][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  875.372645][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  875.372645][   T73]      netlink_rcv_skb+0x130/0x360
[  875.372645][   T73]      netlink_unicast+0x449/0x710
[  875.372645][   T73]      netlink_sendmsg+0x723/0xbe0
[  875.372645][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  875.372645][   T73]      ___sys_sendmsg+0xee/0x170
[  875.372645][   T73]      __sys_sendmsg+0xcd/0x170
[  875.372645][   T73]      do_syscall_64+0xc6/0x1e0
[  875.372645][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  875.372645][   T73] 
[  875.374559][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  875.374902][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  875.374902][   T73]      netdev_get_by_index+0x5e/0x80
[  875.374902][   T73]      fib6_nh_init+0x3d8/0x1580
[  875.374902][   T73]      ip6_route_info_create+0xf18/0x17d0
[  875.374902][   T73]      addrconf_f6i_alloc+0x265/0x560
[  875.374902][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  875.374902][   T73]      addrconf_join_anycast+0x1c0/0x220
[  875.374902][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  875.374902][   T73]      addrconf_dad_completed+0x12b/0xe20
[  875.374902][   T73]      addrconf_dad_begin+0x310/0x670
[  875.374902][   T73]      addrconf_dad_work+0x10b/0xab0
[  875.374902][   T73]      process_one_work+0x84d/0x18a0
[  875.374902][   T73]      worker_thread+0x587/0xd30
[  875.374902][   T73]      kthread+0x28a/0x350
[  875.374902][   T73]      ret_from_fork+0x31/0x70
[  875.374902][   T73]      ret_from_fork_asm+0x1a/0x30
[  875.374902][   T73] 
[  875.377057][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  875.377057][   T73]      netdev_get_by_index+0x5e/0x80
[  875.377057][   T73]      fib6_nh_init+0x3d8/0x1580
[  875.377057][   T73]      ip6_route_info_create+0xf18/0x17d0
[  875.377057][   T73]      ip6_route_add+0x1c/0x140
[  875.377057][   T73]      addrconf_prefix_route+0x2a6/0x430
[  875.377057][   T73]      inet6_addr_add+0x4f8/0xa40
[  875.377057][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  875.377057][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  875.377057][   T73]      netlink_rcv_skb+0x130/0x360
[  875.377057][   T73]      netlink_unicast+0x449/0x710
[  875.377057][   T73]      netlink_sendmsg+0x723/0xbe0
[  875.377057][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  875.377057][   T73]      ___sys_sendmsg+0xee/0x170
[  875.377057][   T73]      __sys_sendmsg+0xcd/0x170
[  875.377057][   T73]      do_syscall_64+0xc6/0x1e0
[  875.377057][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  875.377057][   T73] 
[  875.379228][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  875.379228][   T73]      netdev_get_by_index+0x5e/0x80
[  875.379228][   T73]      fib6_nh_init+0x3d8/0x1580
[  875.379228][   T73]      ip6_route_info_create+0xf18/0x17d0
[  875.379228][   T73]      addrconf_f6i_alloc+0x315/0x560
[  875.379228][   T73]      ipv6_add_addr+0x411/0x2000
[  875.379228][   T73]      inet6_addr_add+0x30e/0xa40
[  875.379228][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  875.379228][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  875.379228][   T73]      netlink_rcv_skb+0x130/0x360
[  875.379228][   T73]      netlink_unicast+0x449/0x710
[  875.379228][   T73]      netlink_sendmsg+0x723/0xbe0
[  875.379228][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  875.379228][   T73]      ___sys_sendmsg+0xee/0x170
[  875.379228][   T73]      __sys_sendmsg+0xcd/0x170
[  875.379228][   T73]      do_syscall_64+0xc6/0x1e0
[  875.379228][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  875.379228][   T73] 
[  875.381475][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  875.381475][   T73]      netdev_get_by_index+0x5e/0x80
[  875.381475][   T73]      fib6_nh_init+0x3d8/0x1580
[  875.381475][   T73]      ip6_route_info_create+0xf18/0x17d0
[  875.381475][   T73]      ip6_route_add+0x1c/0x140
[  875.381475][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  875.381475][   T73]      addrconf_add_dev+0xe2/0x170
[  875.381475][   T73]      inet6_addr_add+0x12f/0xa40
[  875.381475][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  875.381475][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  875.381475][   T73]      netlink_rcv_skb+0x130/0x360
[  875.381475][   T73]      netlink_unicast+0x449/0x710
[  875.381475][   T73]      netlink_sendmsg+0x723/0xbe0
[  875.381475][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  875.381475][   T73]      ___sys_sendmsg+0xee/0x170
[  875.381475][   T73]      __sys_sendmsg+0xcd/0x170
[  875.381475][   T73]      do_syscall_64+0xc6/0x1e0
[  875.381475][   T73] 
[  875.383621][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  875.383621][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  875.383621][   T73]      ipv6_find_idev+0x102/0x170
[  875.383621][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  875.383621][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  875.383621][   T73]      netlink_rcv_skb+0x130/0x360
[  875.383621][   T73]      netlink_unicast+0x449/0x710
[  875.383621][   T73]      netlink_sendmsg+0x723/0xbe0
[  875.383621][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  875.383621][   T73]      ___sys_sendmsg+0xee/0x170
[  875.383621][   T73]      __sys_sendmsg+0xcd/0x170
[  875.383621][   T73]      do_syscall_64+0xc6/0x1e0
[  875.383621][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  875.383621][   T73] 
[  875.385382][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  875.385382][   T73]      neigh_parms_alloc+0x1e5/0x510
[  875.385382][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  875.385382][   T73]      ipv6_find_idev+0x102/0x170
[  875.385382][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  875.385382][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  875.385382][   T73]      netlink_rcv_skb+0x130/0x360
[  875.385382][   T73]      netlink_unicast+0x449/0x710
[  875.385382][   T73]      netlink_sendmsg+0x723/0xbe0
[  875.385382][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  875.385382][   T73]      ___sys_sendmsg+0xee/0x170
[  875.385382][   T73]      __sys_sendmsg+0xcd/0x170
[  875.385382][   T73]      do_syscall_64+0xc6/0x1e0
[  875.385382][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  875.385382][   T73] 
[  885.839764][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  885.840247][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  885.840247][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  885.840247][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  885.840247][   T73]      fib6_nh_init+0xa22/0x1580
[  885.840247][   T73]      ip6_route_info_create+0xf18/0x17d0
[  885.840247][   T73]      ip6_route_add+0x1c/0x140
[  885.840247][   T73]      inet6_rtm_newroute+0x104/0x110
[  885.840247][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  885.840247][   T73]      netlink_rcv_skb+0x130/0x360
[  885.840247][   T73]      netlink_unicast+0x449/0x710
[  885.840247][   T73]      netlink_sendmsg+0x723/0xbe0
[  885.840247][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  885.840247][   T73]      ___sys_sendmsg+0xee/0x170
[  885.840247][   T73]      __sys_sendmsg+0xcd/0x170
[  885.840247][   T73]      do_syscall_64+0xc6/0x1e0
[  885.840247][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  885.840247][   T73] 
[  885.842190][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  885.842190][   T73]      dst_init+0x84/0x4a0
[  885.842190][   T73]      dst_alloc+0x97/0x150
[  885.842190][   T73]      ip6_dst_alloc+0x23/0x90
[  885.842190][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  885.842190][   T73]      ip6_pol_route+0x56f/0x840
[  885.842190][   T73]      fib6_rule_lookup+0x456/0x630
[  885.842190][   T73]      ip6_route_input+0x59c/0xa50
[  885.842190][   T73]      ipv6_rcv+0x397/0x810
[  885.842190][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  885.842190][   T73]      process_backlog+0x101/0x620
[  885.842190][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  885.842190][   T73]      net_rx_action+0x495/0xbe0
[  885.842190][   T73]      __do_softirq+0x1b5/0x7f6
[  885.842190][   T73] 
[  885.843852][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  885.843852][   T73]      netdev_get_by_index+0x5e/0x80
[  885.843852][   T73]      fib6_nh_init+0x3d8/0x1580
[  885.843852][   T73]      ip6_route_info_create+0xf18/0x17d0
[  885.843852][   T73]      ip6_route_add+0x1c/0x140
[  885.843852][   T73]      addrconf_prefix_route+0x2a6/0x430
[  885.843852][   T73]      inet6_addr_add+0x4f8/0xa40
[  885.843852][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  885.843852][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  885.843852][   T73]      netlink_rcv_skb+0x130/0x360
[  885.843852][   T73]      netlink_unicast+0x449/0x710
[  885.843852][   T73]      netlink_sendmsg+0x723/0xbe0
[  885.843852][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  885.843852][   T73]      ___sys_sendmsg+0xee/0x170
[  885.843852][   T73]      __sys_sendmsg+0xcd/0x170
[  885.843852][   T73]      do_syscall_64+0xc6/0x1e0
[  885.843852][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  885.843852][   T73] 
[  885.845937][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  885.845937][   T73]      netdev_get_by_index+0x5e/0x80
[  885.845937][   T73]      fib6_nh_init+0x3d8/0x1580
[  885.845937][   T73]      ip6_route_info_create+0xf18/0x17d0
[  885.845937][   T73]      addrconf_f6i_alloc+0x315/0x560
[  885.845937][   T73]      ipv6_add_addr+0x411/0x2000
[  885.845937][   T73]      inet6_addr_add+0x30e/0xa40
[  885.845937][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  885.845937][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  885.845937][   T73]      netlink_rcv_skb+0x130/0x360
[  885.845937][   T73]      netlink_unicast+0x449/0x710
[  885.845937][   T73]      netlink_sendmsg+0x723/0xbe0
[  885.845937][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  885.845937][   T73]      ___sys_sendmsg+0xee/0x170
[  885.845937][   T73]      __sys_sendmsg+0xcd/0x170
[  885.845937][   T73]      do_syscall_64+0xc6/0x1e0
[  885.845937][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  885.845937][   T73] 
[  885.847968][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  885.847968][   T73]      netdev_get_by_index+0x5e/0x80
[  885.847968][   T73]      fib6_nh_init+0x3d8/0x1580
[  885.847968][   T73]      ip6_route_info_create+0xf18/0x17d0
[  885.847968][   T73]      ip6_route_add+0x1c/0x140
[  885.847968][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  885.847968][   T73]      addrconf_add_dev+0xe2/0x170
[  885.847968][   T73]      inet6_addr_add+0x12f/0xa40
[  885.847968][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  885.847968][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  885.847968][   T73]      netlink_rcv_skb+0x130/0x360
[  885.847968][   T73]      netlink_unicast+0x449/0x710
[  885.847968][   T73]      netlink_sendmsg+0x723/0xbe0
[  885.847968][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  885.847968][   T73]      ___sys_sendmsg+0xee/0x170
[  885.847968][   T73]      __sys_sendmsg+0xcd/0x170
[  885.847968][   T73]      do_syscall_64+0xc6/0x1e0
[  885.847968][   T73] 
[  885.849975][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  885.849975][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  885.849975][   T73]      ipv6_find_idev+0x102/0x170
[  885.849975][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  885.849975][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  885.849975][   T73]      netlink_rcv_skb+0x130/0x360
[  885.849975][   T73]      netlink_unicast+0x449/0x710
[  885.849975][   T73]      netlink_sendmsg+0x723/0xbe0
[  885.849975][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  885.849975][   T73]      ___sys_sendmsg+0xee/0x170
[  885.849975][   T73]      __sys_sendmsg+0xcd/0x170
[  885.849975][   T73]      do_syscall_64+0xc6/0x1e0
[  885.849975][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  885.849975][   T73] 
[  885.851536][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  885.851536][   T73]      neigh_parms_alloc+0x1e5/0x510
[  885.851536][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  885.851536][   T73]      ipv6_find_idev+0x102/0x170
[  885.851536][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  885.851536][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  885.851536][   T73]      netlink_rcv_skb+0x130/0x360
[  885.851536][   T73]      netlink_unicast+0x449/0x710
[  885.851536][   T73]      netlink_sendmsg+0x723/0xbe0
[  885.851536][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  885.851536][   T73]      ___sys_sendmsg+0xee/0x170
[  885.851536][   T73]      __sys_sendmsg+0xcd/0x170
[  885.851536][   T73]      do_syscall_64+0xc6/0x1e0
[  885.851536][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  885.851536][   T73] 
[  885.853318][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  885.853605][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  885.853605][   T73]      netdev_get_by_index+0x5e/0x80
[  885.853605][   T73]      fib6_nh_init+0x3d8/0x1580
[  885.853605][   T73]      ip6_route_info_create+0xf18/0x17d0
[  885.853605][   T73]      addrconf_f6i_alloc+0x265/0x560
[  885.853605][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  885.853605][   T73]      addrconf_join_anycast+0x1c0/0x220
[  885.853605][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  885.853605][   T73]      addrconf_dad_completed+0x12b/0xe20
[  885.853605][   T73]      addrconf_dad_begin+0x310/0x670
[  885.853605][   T73]      addrconf_dad_work+0x10b/0xab0
[  885.853605][   T73]      process_one_work+0x84d/0x18a0
[  885.853605][   T73]      worker_thread+0x587/0xd30
[  885.853605][   T73]      kthread+0x28a/0x350
[  885.853605][   T73]      ret_from_fork+0x31/0x70
[  885.853605][   T73]      ret_from_fork_asm+0x1a/0x30
[  885.853605][   T73] 
[  885.855558][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  885.855558][   T73]      netdev_get_by_index+0x5e/0x80
[  885.855558][   T73]      fib6_nh_init+0x3d8/0x1580
[  885.855558][   T73]      ip6_route_info_create+0xf18/0x17d0
[  885.855558][   T73]      ip6_route_add+0x1c/0x140
[  885.855558][   T73]      addrconf_prefix_route+0x2a6/0x430
[  885.855558][   T73]      inet6_addr_add+0x4f8/0xa40
[  885.855558][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  885.855558][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  885.855558][   T73]      netlink_rcv_skb+0x130/0x360
[  885.855558][   T73]      netlink_unicast+0x449/0x710
[  885.855558][   T73]      netlink_sendmsg+0x723/0xbe0
[  885.855558][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  885.855558][   T73]      ___sys_sendmsg+0xee/0x170
[  885.855558][   T73]      __sys_sendmsg+0xcd/0x170
[  885.855558][   T73]      do_syscall_64+0xc6/0x1e0
[  885.855558][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  885.855558][   T73] 
[  885.857580][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  885.857580][   T73]      netdev_get_by_index+0x5e/0x80
[  885.857580][   T73]      fib6_nh_init+0x3d8/0x1580
[  885.857580][   T73]      ip6_route_info_create+0xf18/0x17d0
[  885.857580][   T73]      addrconf_f6i_alloc+0x315/0x560
[  885.857580][   T73]      ipv6_add_addr+0x411/0x2000
[  885.857580][   T73]      inet6_addr_add+0x30e/0xa40
[  885.857580][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  885.857580][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  885.857580][   T73]      netlink_rcv_skb+0x130/0x360
[  885.857580][   T73]      netlink_unicast+0x449/0x710
[  885.857580][   T73]      netlink_sendmsg+0x723/0xbe0
[  885.857580][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  885.857580][   T73]      ___sys_sendmsg+0xee/0x170
[  885.857580][   T73]      __sys_sendmsg+0xcd/0x170
[  885.857580][   T73]      do_syscall_64+0xc6/0x1e0
[  885.857580][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  885.857580][   T73] 
[  885.859633][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  885.859633][   T73]      netdev_get_by_index+0x5e/0x80
[  885.859633][   T73]      fib6_nh_init+0x3d8/0x1580
[  885.859633][   T73]      ip6_route_info_create+0xf18/0x17d0
[  885.859633][   T73]      ip6_route_add+0x1c/0x140
[  885.859633][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  885.859633][   T73]      addrconf_add_dev+0xe2/0x170
[  885.859633][   T73]      inet6_addr_add+0x12f/0xa40
[  885.859633][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  885.859633][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  885.859633][   T73]      netlink_rcv_skb+0x130/0x360
[  885.859633][   T73]      netlink_unicast+0x449/0x710
[  885.859633][   T73]      netlink_sendmsg+0x723/0xbe0
[  885.859633][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  885.859633][   T73]      ___sys_sendmsg+0xee/0x170
[  885.859633][   T73]      __sys_sendmsg+0xcd/0x170
[  885.859633][   T73]      do_syscall_64+0xc6/0x1e0
[  885.859633][   T73] 
[  885.861626][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  885.861626][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  885.861626][   T73]      ipv6_find_idev+0x102/0x170
[  885.861626][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  885.861626][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  885.861626][   T73]      netlink_rcv_skb+0x130/0x360
[  885.861626][   T73]      netlink_unicast+0x449/0x710
[  885.861626][   T73]      netlink_sendmsg+0x723/0xbe0
[  885.861626][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  885.861626][   T73]      ___sys_sendmsg+0xee/0x170
[  885.861626][   T73]      __sys_sendmsg+0xcd/0x170
[  885.861626][   T73]      do_syscall_64+0xc6/0x1e0
[  885.861626][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  885.861626][   T73] 
[  885.863197][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  885.863197][   T73]      neigh_parms_alloc+0x1e5/0x510
[  885.863197][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  885.863197][   T73]      ipv6_find_idev+0x102/0x170
[  885.863197][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  885.863197][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  885.863197][   T73]      netlink_rcv_skb+0x130/0x360
[  885.863197][   T73]      netlink_unicast+0x449/0x710
[  885.863197][   T73]      netlink_sendmsg+0x723/0xbe0
[  885.863197][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  885.863197][   T73]      ___sys_sendmsg+0xee/0x170
[  885.863197][   T73]      __sys_sendmsg+0xcd/0x170
[  885.863197][   T73]      do_syscall_64+0xc6/0x1e0
[  885.863197][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  885.863197][   T73] 
[  885.864957][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  885.865257][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  885.865257][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  885.865257][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  885.865257][   T73]      fib6_nh_init+0xa22/0x1580
[  885.865257][   T73]      ip6_route_info_create+0xf18/0x17d0
[  885.865257][   T73]      ip6_route_add+0x1c/0x140
[  885.865257][   T73]      inet6_rtm_newroute+0x104/0x110
[  885.865257][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  885.865257][   T73]      netlink_rcv_skb+0x130/0x360
[  885.865257][   T73]      netlink_unicast+0x449/0x710
[  885.865257][   T73]      netlink_sendmsg+0x723/0xbe0
[  885.865257][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  885.865257][   T73]      ___sys_sendmsg+0xee/0x170
[  885.865257][   T73]      __sys_sendmsg+0xcd/0x170
[  885.865257][   T73]      do_syscall_64+0xc6/0x1e0
[  885.865257][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  885.865257][   T73] 
[  885.867357][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  885.867357][   T73]      dst_init+0x84/0x4a0
[  885.867357][   T73]      dst_alloc+0x97/0x150
[  885.867357][   T73]      ip6_dst_alloc+0x23/0x90
[  885.867357][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  885.867357][   T73]      ip6_pol_route+0x56f/0x840
[  885.867357][   T73]      fib6_rule_lookup+0x456/0x630
[  885.867357][   T73]      ip6_route_input+0x59c/0xa50
[  885.867357][   T73]      ipv6_rcv+0x397/0x810
[  885.867357][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  885.867357][   T73]      process_backlog+0x101/0x620
[  885.867357][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  885.867357][   T73]      net_rx_action+0x495/0xbe0
[  885.867357][   T73]      __do_softirq+0x1b5/0x7f6
[  885.867357][   T73] 
[  885.869245][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  885.869245][   T73]      netdev_get_by_index+0x5e/0x80
[  885.869245][   T73]      fib6_nh_init+0x3d8/0x1580
[  885.869245][   T73]      ip6_route_info_create+0xf18/0x17d0
[  885.869245][   T73]      ip6_route_add+0x1c/0x140
[  885.869245][   T73]      addrconf_prefix_route+0x2a6/0x430
[  885.869245][   T73]      inet6_addr_add+0x4f8/0xa40
[  885.869245][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  885.869245][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  885.869245][   T73]      netlink_rcv_skb+0x130/0x360
[  885.869245][   T73]      netlink_unicast+0x449/0x710
[  885.869245][   T73]      netlink_sendmsg+0x723/0xbe0
[  885.869245][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  885.869245][   T73]      ___sys_sendmsg+0xee/0x170
[  885.869245][   T73]      __sys_sendmsg+0xcd/0x170
[  885.869245][   T73]      do_syscall_64+0xc6/0x1e0
[  885.869245][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  885.869245][   T73] 
[  885.871555][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  885.871555][   T73]      netdev_get_by_index+0x5e/0x80
[  885.871555][   T73]      fib6_nh_init+0x3d8/0x1580
[  885.871555][   T73]      ip6_route_info_create+0xf18/0x17d0
[  885.871555][   T73]      addrconf_f6i_alloc+0x315/0x560
[  885.871555][   T73]      ipv6_add_addr+0x411/0x2000
[  885.871555][   T73]      inet6_addr_add+0x30e/0xa40
[  885.871555][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  885.871555][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  885.871555][   T73]      netlink_rcv_skb+0x130/0x360
[  885.871555][   T73]      netlink_unicast+0x449/0x710
[  885.871555][   T73]      netlink_sendmsg+0x723/0xbe0
[  885.871555][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  885.871555][   T73]      ___sys_sendmsg+0xee/0x170
[  885.871555][   T73]      __sys_sendmsg+0xcd/0x170
[  885.871555][   T73]      do_syscall_64+0xc6/0x1e0
[  885.871555][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  885.871555][   T73] 
[  885.873850][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  885.873850][   T73]      netdev_get_by_index+0x5e/0x80
[  885.873850][   T73]      fib6_nh_init+0x3d8/0x1580
[  885.873850][   T73]      ip6_route_info_create+0xf18/0x17d0
[  885.873850][   T73]      ip6_route_add+0x1c/0x140
[  885.873850][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  885.873850][   T73]      addrconf_add_dev+0xe2/0x170
[  885.873850][   T73]      inet6_addr_add+0x12f/0xa40
[  885.873850][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  885.873850][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  885.873850][   T73]      netlink_rcv_skb+0x130/0x360
[  885.873850][   T73]      netlink_unicast+0x449/0x710
[  885.873850][   T73]      netlink_sendmsg+0x723/0xbe0
[  885.873850][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  885.873850][   T73]      ___sys_sendmsg+0xee/0x170
[  885.873850][   T73]      __sys_sendmsg+0xcd/0x170
[  885.873850][   T73]      do_syscall_64+0xc6/0x1e0
[  885.873850][   T73] 
[  885.876074][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  885.876074][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  885.876074][   T73]      ipv6_find_idev+0x102/0x170
[  885.876074][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  885.876074][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  885.876074][   T73]      netlink_rcv_skb+0x130/0x360
[  885.876074][   T73]      netlink_unicast+0x449/0x710
[  885.876074][   T73]      netlink_sendmsg+0x723/0xbe0
[  885.876074][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  885.876074][   T73]      ___sys_sendmsg+0xee/0x170
[  885.876074][   T73]      __sys_sendmsg+0xcd/0x170
[  885.876074][   T73]      do_syscall_64+0xc6/0x1e0
[  885.876074][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  885.876074][   T73] 
[  885.877889][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  885.877889][   T73]      neigh_parms_alloc+0x1e5/0x510
[  885.877889][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  885.877889][   T73]      ipv6_find_idev+0x102/0x170
[  885.877889][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  885.877889][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  885.877889][   T73]      netlink_rcv_skb+0x130/0x360
[  885.877889][   T73]      netlink_unicast+0x449/0x710
[  885.877889][   T73]      netlink_sendmsg+0x723/0xbe0
[  885.877889][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  885.877889][   T73]      ___sys_sendmsg+0xee/0x170
[  885.877889][   T73]      __sys_sendmsg+0xcd/0x170
[  885.877889][   T73]      do_syscall_64+0xc6/0x1e0
[  885.877889][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  885.877889][   T73] 
[  885.879883][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  885.880213][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  885.880213][   T73]      netdev_get_by_index+0x5e/0x80
[  885.880213][   T73]      fib6_nh_init+0x3d8/0x1580
[  885.880213][   T73]      ip6_route_info_create+0xf18/0x17d0
[  885.880213][   T73]      addrconf_f6i_alloc+0x265/0x560
[  885.880213][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  885.880213][   T73]      addrconf_join_anycast+0x1c0/0x220
[  885.880213][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  885.880213][   T73]      addrconf_dad_completed+0x12b/0xe20
[  885.880213][   T73]      addrconf_dad_begin+0x310/0x670
[  885.880213][   T73]      addrconf_dad_work+0x10b/0xab0
[  885.880213][   T73]      process_one_work+0x84d/0x18a0
[  885.880213][   T73]      worker_thread+0x587/0xd30
[  885.880213][   T73]      kthread+0x28a/0x350
[  885.880213][   T73]      ret_from_fork+0x31/0x70
[  885.880213][   T73]      ret_from_fork_asm+0x1a/0x30
[  885.880213][   T73] 
[  885.882450][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  885.882450][   T73]      netdev_get_by_index+0x5e/0x80
[  885.882450][   T73]      fib6_nh_init+0x3d8/0x1580
[  885.882450][   T73]      ip6_route_info_create+0xf18/0x17d0
[  885.882450][   T73]      ip6_route_add+0x1c/0x140
[  885.882450][   T73]      addrconf_prefix_route+0x2a6/0x430
[  885.882450][   T73]      inet6_addr_add+0x4f8/0xa40
[  885.882450][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  885.882450][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  885.882450][   T73]      netlink_rcv_skb+0x130/0x360
[  885.882450][   T73]      netlink_unicast+0x449/0x710
[  885.882450][   T73]      netlink_sendmsg+0x723/0xbe0
[  885.882450][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  885.882450][   T73]      ___sys_sendmsg+0xee/0x170
[  885.882450][   T73]      __sys_sendmsg+0xcd/0x170
[  885.882450][   T73]      do_syscall_64+0xc6/0x1e0
[  885.882450][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  885.882450][   T73] 
[  885.884666][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  885.884666][   T73]      netdev_get_by_index+0x5e/0x80
[  885.884666][   T73]      fib6_nh_init+0x3d8/0x1580
[  885.884666][   T73]      ip6_route_info_create+0xf18/0x17d0
[  885.884666][   T73]      addrconf_f6i_alloc+0x315/0x560
[  885.884666][   T73]      ipv6_add_addr+0x411/0x2000
[  885.884666][   T73]      inet6_addr_add+0x30e/0xa40
[  885.884666][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  885.884666][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  885.884666][   T73]      netlink_rcv_skb+0x130/0x360
[  885.884666][   T73]      netlink_unicast+0x449/0x710
[  885.884666][   T73]      netlink_sendmsg+0x723/0xbe0
[  885.884666][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  885.884666][   T73]      ___sys_sendmsg+0xee/0x170
[  885.884666][   T73]      __sys_sendmsg+0xcd/0x170
[  885.884666][   T73]      do_syscall_64+0xc6/0x1e0
[  885.884666][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  885.884666][   T73] 
[  885.887000][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  885.887000][   T73]      netdev_get_by_index+0x5e/0x80
[  885.887000][   T73]      fib6_nh_init+0x3d8/0x1580
[  885.887000][   T73]      ip6_route_info_create+0xf18/0x17d0
[  885.887000][   T73]      ip6_route_add+0x1c/0x140
[  885.887000][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  885.887000][   T73]      addrconf_add_dev+0xe2/0x170
[  885.887000][   T73]      inet6_addr_add+0x12f/0xa40
[  885.887000][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  885.887000][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  885.887000][   T73]      netlink_rcv_skb+0x130/0x360
[  885.887000][   T73]      netlink_unicast+0x449/0x710
[  885.887000][   T73]      netlink_sendmsg+0x723/0xbe0
[  885.887000][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  885.887000][   T73]      ___sys_sendmsg+0xee/0x170
[  885.887000][   T73]      __sys_sendmsg+0xcd/0x170
[  885.887000][   T73]      do_syscall_64+0xc6/0x1e0
[  885.887000][   T73] 
[  885.889273][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  885.889273][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  885.889273][   T73]      ipv6_find_idev+0x102/0x170
[  885.889273][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  885.889273][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  885.889273][   T73]      netlink_rcv_skb+0x130/0x360
[  885.889273][   T73]      netlink_unicast+0x449/0x710
[  885.889273][   T73]      netlink_sendmsg+0x723/0xbe0
[  885.889273][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  885.889273][   T73]      ___sys_sendmsg+0xee/0x170
[  885.889273][   T73]      __sys_sendmsg+0xcd/0x170
[  885.889273][   T73]      do_syscall_64+0xc6/0x1e0
[  885.889273][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  885.889273][   T73] 
[  885.891047][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  885.891047][   T73]      neigh_parms_alloc+0x1e5/0x510
[  885.891047][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  885.891047][   T73]      ipv6_find_idev+0x102/0x170
[  885.891047][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  885.891047][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  885.891047][   T73]      netlink_rcv_skb+0x130/0x360
[  885.891047][   T73]      netlink_unicast+0x449/0x710
[  885.891047][   T73]      netlink_sendmsg+0x723/0xbe0
[  885.891047][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  885.891047][   T73]      ___sys_sendmsg+0xee/0x170
[  885.891047][   T73]      __sys_sendmsg+0xcd/0x170
[  885.891047][   T73]      do_syscall_64+0xc6/0x1e0
[  885.891047][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  885.891047][   T73] 
[  895.959736][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  895.960144][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  895.960144][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  895.960144][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  895.960144][   T73]      fib6_nh_init+0xa22/0x1580
[  895.960144][   T73]      ip6_route_info_create+0xf18/0x17d0
[  895.960144][   T73]      ip6_route_add+0x1c/0x140
[  895.960144][   T73]      inet6_rtm_newroute+0x104/0x110
[  895.960144][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  895.960144][   T73]      netlink_rcv_skb+0x130/0x360
[  895.960144][   T73]      netlink_unicast+0x449/0x710
[  895.960144][   T73]      netlink_sendmsg+0x723/0xbe0
[  895.960144][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  895.960144][   T73]      ___sys_sendmsg+0xee/0x170
[  895.960144][   T73]      __sys_sendmsg+0xcd/0x170
[  895.960144][   T73]      do_syscall_64+0xc6/0x1e0
[  895.960144][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  895.960144][   T73] 
[  895.962055][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  895.962055][   T73]      dst_init+0x84/0x4a0
[  895.962055][   T73]      dst_alloc+0x97/0x150
[  895.962055][   T73]      ip6_dst_alloc+0x23/0x90
[  895.962055][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  895.962055][   T73]      ip6_pol_route+0x56f/0x840
[  895.962055][   T73]      fib6_rule_lookup+0x456/0x630
[  895.962055][   T73]      ip6_route_input+0x59c/0xa50
[  895.962055][   T73]      ipv6_rcv+0x397/0x810
[  895.962055][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  895.962055][   T73]      process_backlog+0x101/0x620
[  895.962055][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  895.962055][   T73]      net_rx_action+0x495/0xbe0
[  895.962055][   T73]      __do_softirq+0x1b5/0x7f6
[  895.962055][   T73] 
[  895.963775][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  895.963775][   T73]      netdev_get_by_index+0x5e/0x80
[  895.963775][   T73]      fib6_nh_init+0x3d8/0x1580
[  895.963775][   T73]      ip6_route_info_create+0xf18/0x17d0
[  895.963775][   T73]      ip6_route_add+0x1c/0x140
[  895.963775][   T73]      addrconf_prefix_route+0x2a6/0x430
[  895.963775][   T73]      inet6_addr_add+0x4f8/0xa40
[  895.963775][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  895.963775][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  895.963775][   T73]      netlink_rcv_skb+0x130/0x360
[  895.963775][   T73]      netlink_unicast+0x449/0x710
[  895.963775][   T73]      netlink_sendmsg+0x723/0xbe0
[  895.963775][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  895.963775][   T73]      ___sys_sendmsg+0xee/0x170
[  895.963775][   T73]      __sys_sendmsg+0xcd/0x170
[  895.963775][   T73]      do_syscall_64+0xc6/0x1e0
[  895.963775][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  895.963775][   T73] 
[  895.965777][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  895.965777][   T73]      netdev_get_by_index+0x5e/0x80
[  895.965777][   T73]      fib6_nh_init+0x3d8/0x1580
[  895.965777][   T73]      ip6_route_info_create+0xf18/0x17d0
[  895.965777][   T73]      addrconf_f6i_alloc+0x315/0x560
[  895.965777][   T73]      ipv6_add_addr+0x411/0x2000
[  895.965777][   T73]      inet6_addr_add+0x30e/0xa40
[  895.965777][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  895.965777][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  895.965777][   T73]      netlink_rcv_skb+0x130/0x360
[  895.965777][   T73]      netlink_unicast+0x449/0x710
[  895.965777][   T73]      netlink_sendmsg+0x723/0xbe0
[  895.965777][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  895.965777][   T73]      ___sys_sendmsg+0xee/0x170
[  895.965777][   T73]      __sys_sendmsg+0xcd/0x170
[  895.965777][   T73]      do_syscall_64+0xc6/0x1e0
[  895.965777][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  895.965777][   T73] 
[  895.967764][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  895.967764][   T73]      netdev_get_by_index+0x5e/0x80
[  895.967764][   T73]      fib6_nh_init+0x3d8/0x1580
[  895.967764][   T73]      ip6_route_info_create+0xf18/0x17d0
[  895.967764][   T73]      ip6_route_add+0x1c/0x140
[  895.967764][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  895.967764][   T73]      addrconf_add_dev+0xe2/0x170
[  895.967764][   T73]      inet6_addr_add+0x12f/0xa40
[  895.967764][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  895.967764][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  895.967764][   T73]      netlink_rcv_skb+0x130/0x360
[  895.967764][   T73]      netlink_unicast+0x449/0x710
[  895.967764][   T73]      netlink_sendmsg+0x723/0xbe0
[  895.967764][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  895.967764][   T73]      ___sys_sendmsg+0xee/0x170
[  895.967764][   T73]      __sys_sendmsg+0xcd/0x170
[  895.967764][   T73]      do_syscall_64+0xc6/0x1e0
[  895.967764][   T73] 
[  895.969741][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  895.969741][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  895.969741][   T73]      ipv6_find_idev+0x102/0x170
[  895.969741][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  895.969741][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  895.969741][   T73]      netlink_rcv_skb+0x130/0x360
[  895.969741][   T73]      netlink_unicast+0x449/0x710
[  895.969741][   T73]      netlink_sendmsg+0x723/0xbe0
[  895.969741][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  895.969741][   T73]      ___sys_sendmsg+0xee/0x170
[  895.969741][   T73]      __sys_sendmsg+0xcd/0x170
[  895.969741][   T73]      do_syscall_64+0xc6/0x1e0
[  895.969741][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  895.969741][   T73] 
[  895.971299][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  895.971299][   T73]      neigh_parms_alloc+0x1e5/0x510
[  895.971299][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  895.971299][   T73]      ipv6_find_idev+0x102/0x170
[  895.971299][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  895.971299][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  895.971299][   T73]      netlink_rcv_skb+0x130/0x360
[  895.971299][   T73]      netlink_unicast+0x449/0x710
[  895.971299][   T73]      netlink_sendmsg+0x723/0xbe0
[  895.971299][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  895.971299][   T73]      ___sys_sendmsg+0xee/0x170
[  895.971299][   T73]      __sys_sendmsg+0xcd/0x170
[  895.971299][   T73]      do_syscall_64+0xc6/0x1e0
[  895.971299][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  895.971299][   T73] 
[  895.973002][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  895.973280][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  895.973280][   T73]      netdev_get_by_index+0x5e/0x80
[  895.973280][   T73]      fib6_nh_init+0x3d8/0x1580
[  895.973280][   T73]      ip6_route_info_create+0xf18/0x17d0
[  895.973280][   T73]      addrconf_f6i_alloc+0x265/0x560
[  895.973280][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  895.973280][   T73]      addrconf_join_anycast+0x1c0/0x220
[  895.973280][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  895.973280][   T73]      addrconf_dad_completed+0x12b/0xe20
[  895.973280][   T73]      addrconf_dad_begin+0x310/0x670
[  895.973280][   T73]      addrconf_dad_work+0x10b/0xab0
[  895.973280][   T73]      process_one_work+0x84d/0x18a0
[  895.973280][   T73]      worker_thread+0x587/0xd30
[  895.973280][   T73]      kthread+0x28a/0x350
[  895.973280][   T73]      ret_from_fork+0x31/0x70
[  895.973280][   T73]      ret_from_fork_asm+0x1a/0x30
[  895.973280][   T73] 
[  895.975206][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  895.975206][   T73]      netdev_get_by_index+0x5e/0x80
[  895.975206][   T73]      fib6_nh_init+0x3d8/0x1580
[  895.975206][   T73]      ip6_route_info_create+0xf18/0x17d0
[  895.975206][   T73]      ip6_route_add+0x1c/0x140
[  895.975206][   T73]      addrconf_prefix_route+0x2a6/0x430
[  895.975206][   T73]      inet6_addr_add+0x4f8/0xa40
[  895.975206][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  895.975206][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  895.975206][   T73]      netlink_rcv_skb+0x130/0x360
[  895.975206][   T73]      netlink_unicast+0x449/0x710
[  895.975206][   T73]      netlink_sendmsg+0x723/0xbe0
[  895.975206][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  895.975206][   T73]      ___sys_sendmsg+0xee/0x170
[  895.975206][   T73]      __sys_sendmsg+0xcd/0x170
[  895.975206][   T73]      do_syscall_64+0xc6/0x1e0
[  895.975206][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  895.975206][   T73] 
[  895.977209][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  895.977209][   T73]      netdev_get_by_index+0x5e/0x80
[  895.977209][   T73]      fib6_nh_init+0x3d8/0x1580
[  895.977209][   T73]      ip6_route_info_create+0xf18/0x17d0
[  895.977209][   T73]      addrconf_f6i_alloc+0x315/0x560
[  895.977209][   T73]      ipv6_add_addr+0x411/0x2000
[  895.977209][   T73]      inet6_addr_add+0x30e/0xa40
[  895.977209][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  895.977209][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  895.977209][   T73]      netlink_rcv_skb+0x130/0x360
[  895.977209][   T73]      netlink_unicast+0x449/0x710
[  895.977209][   T73]      netlink_sendmsg+0x723/0xbe0
[  895.977209][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  895.977209][   T73]      ___sys_sendmsg+0xee/0x170
[  895.977209][   T73]      __sys_sendmsg+0xcd/0x170
[  895.977209][   T73]      do_syscall_64+0xc6/0x1e0
[  895.977209][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  895.977209][   T73] 
[  895.979201][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  895.979201][   T73]      netdev_get_by_index+0x5e/0x80
[  895.979201][   T73]      fib6_nh_init+0x3d8/0x1580
[  895.979201][   T73]      ip6_route_info_create+0xf18/0x17d0
[  895.979201][   T73]      ip6_route_add+0x1c/0x140
[  895.979201][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  895.979201][   T73]      addrconf_add_dev+0xe2/0x170
[  895.979201][   T73]      inet6_addr_add+0x12f/0xa40
[  895.979201][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  895.979201][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  895.979201][   T73]      netlink_rcv_skb+0x130/0x360
[  895.979201][   T73]      netlink_unicast+0x449/0x710
[  895.979201][   T73]      netlink_sendmsg+0x723/0xbe0
[  895.979201][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  895.979201][   T73]      ___sys_sendmsg+0xee/0x170
[  895.979201][   T73]      __sys_sendmsg+0xcd/0x170
[  895.979201][   T73]      do_syscall_64+0xc6/0x1e0
[  895.979201][   T73] 
[  895.981191][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  895.981191][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  895.981191][   T73]      ipv6_find_idev+0x102/0x170
[  895.981191][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  895.981191][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  895.981191][   T73]      netlink_rcv_skb+0x130/0x360
[  895.981191][   T73]      netlink_unicast+0x449/0x710
[  895.981191][   T73]      netlink_sendmsg+0x723/0xbe0
[  895.981191][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  895.981191][   T73]      ___sys_sendmsg+0xee/0x170
[  895.981191][   T73]      __sys_sendmsg+0xcd/0x170
[  895.981191][   T73]      do_syscall_64+0xc6/0x1e0
[  895.981191][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  895.981191][   T73] 
[  895.982737][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  895.982737][   T73]      neigh_parms_alloc+0x1e5/0x510
[  895.982737][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  895.982737][   T73]      ipv6_find_idev+0x102/0x170
[  895.982737][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  895.982737][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  895.982737][   T73]      netlink_rcv_skb+0x130/0x360
[  895.982737][   T73]      netlink_unicast+0x449/0x710
[  895.982737][   T73]      netlink_sendmsg+0x723/0xbe0
[  895.982737][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  895.982737][   T73]      ___sys_sendmsg+0xee/0x170
[  895.982737][   T73]      __sys_sendmsg+0xcd/0x170
[  895.982737][   T73]      do_syscall_64+0xc6/0x1e0
[  895.982737][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  895.982737][   T73] 
[  895.984423][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  895.984736][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  895.984736][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  895.984736][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  895.984736][   T73]      fib6_nh_init+0xa22/0x1580
[  895.984736][   T73]      ip6_route_info_create+0xf18/0x17d0
[  895.984736][   T73]      ip6_route_add+0x1c/0x140
[  895.984736][   T73]      inet6_rtm_newroute+0x104/0x110
[  895.984736][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  895.984736][   T73]      netlink_rcv_skb+0x130/0x360
[  895.984736][   T73]      netlink_unicast+0x449/0x710
[  895.984736][   T73]      netlink_sendmsg+0x723/0xbe0
[  895.984736][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  895.984736][   T73]      ___sys_sendmsg+0xee/0x170
[  895.984736][   T73]      __sys_sendmsg+0xcd/0x170
[  895.984736][   T73]      do_syscall_64+0xc6/0x1e0
[  895.984736][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  895.984736][   T73] 
[  895.986806][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  895.986806][   T73]      dst_init+0x84/0x4a0
[  895.986806][   T73]      dst_alloc+0x97/0x150
[  895.986806][   T73]      ip6_dst_alloc+0x23/0x90
[  895.986806][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  895.986806][   T73]      ip6_pol_route+0x56f/0x840
[  895.986806][   T73]      fib6_rule_lookup+0x456/0x630
[  895.986806][   T73]      ip6_route_input+0x59c/0xa50
[  895.986806][   T73]      ipv6_rcv+0x397/0x810
[  895.986806][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  895.986806][   T73]      process_backlog+0x101/0x620
[  895.986806][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  895.986806][   T73]      net_rx_action+0x495/0xbe0
[  895.986806][   T73]      __do_softirq+0x1b5/0x7f6
[  895.986806][   T73] 
[  895.988622][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  895.988622][   T73]      netdev_get_by_index+0x5e/0x80
[  895.988622][   T73]      fib6_nh_init+0x3d8/0x1580
[  895.988622][   T73]      ip6_route_info_create+0xf18/0x17d0
[  895.988622][   T73]      ip6_route_add+0x1c/0x140
[  895.988622][   T73]      addrconf_prefix_route+0x2a6/0x430
[  895.988622][   T73]      inet6_addr_add+0x4f8/0xa40
[  895.988622][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  895.988622][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  895.988622][   T73]      netlink_rcv_skb+0x130/0x360
[  895.988622][   T73]      netlink_unicast+0x449/0x710
[  895.988622][   T73]      netlink_sendmsg+0x723/0xbe0
[  895.988622][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  895.988622][   T73]      ___sys_sendmsg+0xee/0x170
[  895.988622][   T73]      __sys_sendmsg+0xcd/0x170
[  895.988622][   T73]      do_syscall_64+0xc6/0x1e0
[  895.988622][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  895.988622][   T73] 
[  895.990891][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  895.990891][   T73]      netdev_get_by_index+0x5e/0x80
[  895.990891][   T73]      fib6_nh_init+0x3d8/0x1580
[  895.990891][   T73]      ip6_route_info_create+0xf18/0x17d0
[  895.990891][   T73]      addrconf_f6i_alloc+0x315/0x560
[  895.990891][   T73]      ipv6_add_addr+0x411/0x2000
[  895.990891][   T73]      inet6_addr_add+0x30e/0xa40
[  895.990891][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  895.990891][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  895.990891][   T73]      netlink_rcv_skb+0x130/0x360
[  895.990891][   T73]      netlink_unicast+0x449/0x710
[  895.990891][   T73]      netlink_sendmsg+0x723/0xbe0
[  895.990891][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  895.990891][   T73]      ___sys_sendmsg+0xee/0x170
[  895.990891][   T73]      __sys_sendmsg+0xcd/0x170
[  895.990891][   T73]      do_syscall_64+0xc6/0x1e0
[  895.990891][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  895.990891][   T73] 
[  895.993209][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  895.993209][   T73]      netdev_get_by_index+0x5e/0x80
[  895.993209][   T73]      fib6_nh_init+0x3d8/0x1580
[  895.993209][   T73]      ip6_route_info_create+0xf18/0x17d0
[  895.993209][   T73]      ip6_route_add+0x1c/0x140
[  895.993209][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  895.993209][   T73]      addrconf_add_dev+0xe2/0x170
[  895.993209][   T73]      inet6_addr_add+0x12f/0xa40
[  895.993209][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  895.993209][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  895.993209][   T73]      netlink_rcv_skb+0x130/0x360
[  895.993209][   T73]      netlink_unicast+0x449/0x710
[  895.993209][   T73]      netlink_sendmsg+0x723/0xbe0
[  895.993209][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  895.993209][   T73]      ___sys_sendmsg+0xee/0x170
[  895.993209][   T73]      __sys_sendmsg+0xcd/0x170
[  895.993209][   T73]      do_syscall_64+0xc6/0x1e0
[  895.993209][   T73] 
[  895.995354][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  895.995354][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  895.995354][   T73]      ipv6_find_idev+0x102/0x170
[  895.995354][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  895.995354][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  895.995354][   T73]      netlink_rcv_skb+0x130/0x360
[  895.995354][   T73]      netlink_unicast+0x449/0x710
[  895.995354][   T73]      netlink_sendmsg+0x723/0xbe0
[  895.995354][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  895.995354][   T73]      ___sys_sendmsg+0xee/0x170
[  895.995354][   T73]      __sys_sendmsg+0xcd/0x170
[  895.995354][   T73]      do_syscall_64+0xc6/0x1e0
[  895.995354][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  895.995354][   T73] 
[  895.997097][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  895.997097][   T73]      neigh_parms_alloc+0x1e5/0x510
[  895.997097][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  895.997097][   T73]      ipv6_find_idev+0x102/0x170
[  895.997097][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  895.997097][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  895.997097][   T73]      netlink_rcv_skb+0x130/0x360
[  895.997097][   T73]      netlink_unicast+0x449/0x710
[  895.997097][   T73]      netlink_sendmsg+0x723/0xbe0
[  895.997097][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  895.997097][   T73]      ___sys_sendmsg+0xee/0x170
[  895.997097][   T73]      __sys_sendmsg+0xcd/0x170
[  895.997097][   T73]      do_syscall_64+0xc6/0x1e0
[  895.997097][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  895.997097][   T73] 
[  895.999030][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  895.999330][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  895.999330][   T73]      netdev_get_by_index+0x5e/0x80
[  895.999330][   T73]      fib6_nh_init+0x3d8/0x1580
[  895.999330][   T73]      ip6_route_info_create+0xf18/0x17d0
[  895.999330][   T73]      addrconf_f6i_alloc+0x265/0x560
[  895.999330][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  895.999330][   T73]      addrconf_join_anycast+0x1c0/0x220
[  895.999330][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  895.999330][   T73]      addrconf_dad_completed+0x12b/0xe20
[  895.999330][   T73]      addrconf_dad_begin+0x310/0x670
[  895.999330][   T73]      addrconf_dad_work+0x10b/0xab0
[  895.999330][   T73]      process_one_work+0x84d/0x18a0
[  895.999330][   T73]      worker_thread+0x587/0xd30
[  895.999330][   T73]      kthread+0x28a/0x350
[  895.999330][   T73]      ret_from_fork+0x31/0x70
[  895.999330][   T73]      ret_from_fork_asm+0x1a/0x30
[  895.999330][   T73] 
[  896.001580][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  896.001580][   T73]      netdev_get_by_index+0x5e/0x80
[  896.001580][   T73]      fib6_nh_init+0x3d8/0x1580
[  896.001580][   T73]      ip6_route_info_create+0xf18/0x17d0
[  896.001580][   T73]      ip6_route_add+0x1c/0x140
[  896.001580][   T73]      addrconf_prefix_route+0x2a6/0x430
[  896.001580][   T73]      inet6_addr_add+0x4f8/0xa40
[  896.001580][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  896.001580][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  896.001580][   T73]      netlink_rcv_skb+0x130/0x360
[  896.001580][   T73]      netlink_unicast+0x449/0x710
[  896.001580][   T73]      netlink_sendmsg+0x723/0xbe0
[  896.001580][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  896.001580][   T73]      ___sys_sendmsg+0xee/0x170
[  896.001580][   T73]      __sys_sendmsg+0xcd/0x170
[  896.001580][   T73]      do_syscall_64+0xc6/0x1e0
[  896.001580][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  896.001580][   T73] 
[  896.003777][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  896.003777][   T73]      netdev_get_by_index+0x5e/0x80
[  896.003777][   T73]      fib6_nh_init+0x3d8/0x1580
[  896.003777][   T73]      ip6_route_info_create+0xf18/0x17d0
[  896.003777][   T73]      addrconf_f6i_alloc+0x315/0x560
[  896.003777][   T73]      ipv6_add_addr+0x411/0x2000
[  896.003777][   T73]      inet6_addr_add+0x30e/0xa40
[  896.003777][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  896.003777][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  896.003777][   T73]      netlink_rcv_skb+0x130/0x360
[  896.003777][   T73]      netlink_unicast+0x449/0x710
[  896.003777][   T73]      netlink_sendmsg+0x723/0xbe0
[  896.003777][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  896.003777][   T73]      ___sys_sendmsg+0xee/0x170
[  896.003777][   T73]      __sys_sendmsg+0xcd/0x170
[  896.003777][   T73]      do_syscall_64+0xc6/0x1e0
[  896.003777][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  896.003777][   T73] 
[  896.006033][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  896.006033][   T73]      netdev_get_by_index+0x5e/0x80
[  896.006033][   T73]      fib6_nh_init+0x3d8/0x1580
[  896.006033][   T73]      ip6_route_info_create+0xf18/0x17d0
[  896.006033][   T73]      ip6_route_add+0x1c/0x140
[  896.006033][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  896.006033][   T73]      addrconf_add_dev+0xe2/0x170
[  896.006033][   T73]      inet6_addr_add+0x12f/0xa40
[  896.006033][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  896.006033][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  896.006033][   T73]      netlink_rcv_skb+0x130/0x360
[  896.006033][   T73]      netlink_unicast+0x449/0x710
[  896.006033][   T73]      netlink_sendmsg+0x723/0xbe0
[  896.006033][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  896.006033][   T73]      ___sys_sendmsg+0xee/0x170
[  896.006033][   T73]      __sys_sendmsg+0xcd/0x170
[  896.006033][   T73]      do_syscall_64+0xc6/0x1e0
[  896.006033][   T73] 
[  896.008239][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  896.008239][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  896.008239][   T73]      ipv6_find_idev+0x102/0x170
[  896.008239][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  896.008239][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  896.008239][   T73]      netlink_rcv_skb+0x130/0x360
[  896.008239][   T73]      netlink_unicast+0x449/0x710
[  896.008239][   T73]      netlink_sendmsg+0x723/0xbe0
[  896.008239][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  896.008239][   T73]      ___sys_sendmsg+0xee/0x170
[  896.008239][   T73]      __sys_sendmsg+0xcd/0x170
[  896.008239][   T73]      do_syscall_64+0xc6/0x1e0
[  896.008239][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  896.008239][   T73] 
[  896.009960][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  896.009960][   T73]      neigh_parms_alloc+0x1e5/0x510
[  896.009960][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  896.009960][   T73]      ipv6_find_idev+0x102/0x170
[  896.009960][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  896.009960][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  896.009960][   T73]      netlink_rcv_skb+0x130/0x360
[  896.009960][   T73]      netlink_unicast+0x449/0x710
[  896.009960][   T73]      netlink_sendmsg+0x723/0xbe0
[  896.009960][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  896.009960][   T73]      ___sys_sendmsg+0xee/0x170
[  896.009960][   T73]      __sys_sendmsg+0xcd/0x170
[  896.009960][   T73]      do_syscall_64+0xc6/0x1e0
[  896.009960][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  896.009960][   T73] 
[  906.247741][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  906.248154][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  906.248154][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  906.248154][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  906.248154][   T73]      fib6_nh_init+0xa22/0x1580
[  906.248154][   T73]      ip6_route_info_create+0xf18/0x17d0
[  906.248154][   T73]      ip6_route_add+0x1c/0x140
[  906.248154][   T73]      inet6_rtm_newroute+0x104/0x110
[  906.248154][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  906.248154][   T73]      netlink_rcv_skb+0x130/0x360
[  906.248154][   T73]      netlink_unicast+0x449/0x710
[  906.248154][   T73]      netlink_sendmsg+0x723/0xbe0
[  906.248154][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  906.248154][   T73]      ___sys_sendmsg+0xee/0x170
[  906.248154][   T73]      __sys_sendmsg+0xcd/0x170
[  906.248154][   T73]      do_syscall_64+0xc6/0x1e0
[  906.248154][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  906.248154][   T73] 
[  906.250090][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  906.250090][   T73]      dst_init+0x84/0x4a0
[  906.250090][   T73]      dst_alloc+0x97/0x150
[  906.250090][   T73]      ip6_dst_alloc+0x23/0x90
[  906.250090][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  906.250090][   T73]      ip6_pol_route+0x56f/0x840
[  906.250090][   T73]      fib6_rule_lookup+0x456/0x630
[  906.250090][   T73]      ip6_route_input+0x59c/0xa50
[  906.250090][   T73]      ipv6_rcv+0x397/0x810
[  906.250090][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  906.250090][   T73]      process_backlog+0x101/0x620
[  906.250090][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  906.250090][   T73]      net_rx_action+0x495/0xbe0
[  906.250090][   T73]      __do_softirq+0x1b5/0x7f6
[  906.250090][   T73] 
[  906.251774][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  906.251774][   T73]      netdev_get_by_index+0x5e/0x80
[  906.251774][   T73]      fib6_nh_init+0x3d8/0x1580
[  906.251774][   T73]      ip6_route_info_create+0xf18/0x17d0
[  906.251774][   T73]      ip6_route_add+0x1c/0x140
[  906.251774][   T73]      addrconf_prefix_route+0x2a6/0x430
[  906.251774][   T73]      inet6_addr_add+0x4f8/0xa40
[  906.251774][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  906.251774][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  906.251774][   T73]      netlink_rcv_skb+0x130/0x360
[  906.251774][   T73]      netlink_unicast+0x449/0x710
[  906.251774][   T73]      netlink_sendmsg+0x723/0xbe0
[  906.251774][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  906.251774][   T73]      ___sys_sendmsg+0xee/0x170
[  906.251774][   T73]      __sys_sendmsg+0xcd/0x170
[  906.251774][   T73]      do_syscall_64+0xc6/0x1e0
[  906.251774][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  906.251774][   T73] 
[  906.253788][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  906.253788][   T73]      netdev_get_by_index+0x5e/0x80
[  906.253788][   T73]      fib6_nh_init+0x3d8/0x1580
[  906.253788][   T73]      ip6_route_info_create+0xf18/0x17d0
[  906.253788][   T73]      addrconf_f6i_alloc+0x315/0x560
[  906.253788][   T73]      ipv6_add_addr+0x411/0x2000
[  906.253788][   T73]      inet6_addr_add+0x30e/0xa40
[  906.253788][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  906.253788][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  906.253788][   T73]      netlink_rcv_skb+0x130/0x360
[  906.253788][   T73]      netlink_unicast+0x449/0x710
[  906.253788][   T73]      netlink_sendmsg+0x723/0xbe0
[  906.253788][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  906.253788][   T73]      ___sys_sendmsg+0xee/0x170
[  906.253788][   T73]      __sys_sendmsg+0xcd/0x170
[  906.253788][   T73]      do_syscall_64+0xc6/0x1e0
[  906.253788][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  906.253788][   T73] 
[  906.255806][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  906.255806][   T73]      netdev_get_by_index+0x5e/0x80
[  906.255806][   T73]      fib6_nh_init+0x3d8/0x1580
[  906.255806][   T73]      ip6_route_info_create+0xf18/0x17d0
[  906.255806][   T73]      ip6_route_add+0x1c/0x140
[  906.255806][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  906.255806][   T73]      addrconf_add_dev+0xe2/0x170
[  906.255806][   T73]      inet6_addr_add+0x12f/0xa40
[  906.255806][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  906.255806][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  906.255806][   T73]      netlink_rcv_skb+0x130/0x360
[  906.255806][   T73]      netlink_unicast+0x449/0x710
[  906.255806][   T73]      netlink_sendmsg+0x723/0xbe0
[  906.255806][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  906.255806][   T73]      ___sys_sendmsg+0xee/0x170
[  906.255806][   T73]      __sys_sendmsg+0xcd/0x170
[  906.255806][   T73]      do_syscall_64+0xc6/0x1e0
[  906.255806][   T73] 
[  906.257779][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  906.257779][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  906.257779][   T73]      ipv6_find_idev+0x102/0x170
[  906.257779][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  906.257779][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  906.257779][   T73]      netlink_rcv_skb+0x130/0x360
[  906.257779][   T73]      netlink_unicast+0x449/0x710
[  906.257779][   T73]      netlink_sendmsg+0x723/0xbe0
[  906.257779][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  906.257779][   T73]      ___sys_sendmsg+0xee/0x170
[  906.257779][   T73]      __sys_sendmsg+0xcd/0x170
[  906.257779][   T73]      do_syscall_64+0xc6/0x1e0
[  906.257779][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  906.257779][   T73] 
[  906.259352][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  906.259352][   T73]      neigh_parms_alloc+0x1e5/0x510
[  906.259352][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  906.259352][   T73]      ipv6_find_idev+0x102/0x170
[  906.259352][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  906.259352][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  906.259352][   T73]      netlink_rcv_skb+0x130/0x360
[  906.259352][   T73]      netlink_unicast+0x449/0x710
[  906.259352][   T73]      netlink_sendmsg+0x723/0xbe0
[  906.259352][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  906.259352][   T73]      ___sys_sendmsg+0xee/0x170
[  906.259352][   T73]      __sys_sendmsg+0xcd/0x170
[  906.259352][   T73]      do_syscall_64+0xc6/0x1e0
[  906.259352][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  906.259352][   T73] 
[  906.261093][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  906.261381][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  906.261381][   T73]      netdev_get_by_index+0x5e/0x80
[  906.261381][   T73]      fib6_nh_init+0x3d8/0x1580
[  906.261381][   T73]      ip6_route_info_create+0xf18/0x17d0
[  906.261381][   T73]      addrconf_f6i_alloc+0x265/0x560
[  906.261381][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  906.261381][   T73]      addrconf_join_anycast+0x1c0/0x220
[  906.261381][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  906.261381][   T73]      addrconf_dad_completed+0x12b/0xe20
[  906.261381][   T73]      addrconf_dad_begin+0x310/0x670
[  906.261381][   T73]      addrconf_dad_work+0x10b/0xab0
[  906.261381][   T73]      process_one_work+0x84d/0x18a0
[  906.261381][   T73]      worker_thread+0x587/0xd30
[  906.261381][   T73]      kthread+0x28a/0x350
[  906.261381][   T73]      ret_from_fork+0x31/0x70
[  906.261381][   T73]      ret_from_fork_asm+0x1a/0x30
[  906.261381][   T73] 
[  906.263310][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  906.263310][   T73]      netdev_get_by_index+0x5e/0x80
[  906.263310][   T73]      fib6_nh_init+0x3d8/0x1580
[  906.263310][   T73]      ip6_route_info_create+0xf18/0x17d0
[  906.263310][   T73]      ip6_route_add+0x1c/0x140
[  906.263310][   T73]      addrconf_prefix_route+0x2a6/0x430
[  906.263310][   T73]      inet6_addr_add+0x4f8/0xa40
[  906.263310][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  906.263310][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  906.263310][   T73]      netlink_rcv_skb+0x130/0x360
[  906.263310][   T73]      netlink_unicast+0x449/0x710
[  906.263310][   T73]      netlink_sendmsg+0x723/0xbe0
[  906.263310][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  906.263310][   T73]      ___sys_sendmsg+0xee/0x170
[  906.263310][   T73]      __sys_sendmsg+0xcd/0x170
[  906.263310][   T73]      do_syscall_64+0xc6/0x1e0
[  906.263310][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  906.263310][   T73] 
[  906.265328][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  906.265328][   T73]      netdev_get_by_index+0x5e/0x80
[  906.265328][   T73]      fib6_nh_init+0x3d8/0x1580
[  906.265328][   T73]      ip6_route_info_create+0xf18/0x17d0
[  906.265328][   T73]      addrconf_f6i_alloc+0x315/0x560
[  906.265328][   T73]      ipv6_add_addr+0x411/0x2000
[  906.265328][   T73]      inet6_addr_add+0x30e/0xa40
[  906.265328][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  906.265328][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  906.265328][   T73]      netlink_rcv_skb+0x130/0x360
[  906.265328][   T73]      netlink_unicast+0x449/0x710
[  906.265328][   T73]      netlink_sendmsg+0x723/0xbe0
[  906.265328][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  906.265328][   T73]      ___sys_sendmsg+0xee/0x170
[  906.265328][   T73]      __sys_sendmsg+0xcd/0x170
[  906.265328][   T73]      do_syscall_64+0xc6/0x1e0
[  906.265328][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  906.265328][   T73] 
[  906.267339][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  906.267339][   T73]      netdev_get_by_index+0x5e/0x80
[  906.267339][   T73]      fib6_nh_init+0x3d8/0x1580
[  906.267339][   T73]      ip6_route_info_create+0xf18/0x17d0
[  906.267339][   T73]      ip6_route_add+0x1c/0x140
[  906.267339][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  906.267339][   T73]      addrconf_add_dev+0xe2/0x170
[  906.267339][   T73]      inet6_addr_add+0x12f/0xa40
[  906.267339][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  906.267339][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  906.267339][   T73]      netlink_rcv_skb+0x130/0x360
[  906.267339][   T73]      netlink_unicast+0x449/0x710
[  906.267339][   T73]      netlink_sendmsg+0x723/0xbe0
[  906.267339][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  906.267339][   T73]      ___sys_sendmsg+0xee/0x170
[  906.267339][   T73]      __sys_sendmsg+0xcd/0x170
[  906.267339][   T73]      do_syscall_64+0xc6/0x1e0
[  906.267339][   T73] 
[  906.269315][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  906.269315][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  906.269315][   T73]      ipv6_find_idev+0x102/0x170
[  906.269315][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  906.269315][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  906.269315][   T73]      netlink_rcv_skb+0x130/0x360
[  906.269315][   T73]      netlink_unicast+0x449/0x710
[  906.269315][   T73]      netlink_sendmsg+0x723/0xbe0
[  906.269315][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  906.269315][   T73]      ___sys_sendmsg+0xee/0x170
[  906.269315][   T73]      __sys_sendmsg+0xcd/0x170
[  906.269315][   T73]      do_syscall_64+0xc6/0x1e0
[  906.269315][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  906.269315][   T73] 
[  906.270881][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  906.270881][   T73]      neigh_parms_alloc+0x1e5/0x510
[  906.270881][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  906.270881][   T73]      ipv6_find_idev+0x102/0x170
[  906.270881][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  906.270881][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  906.270881][   T73]      netlink_rcv_skb+0x130/0x360
[  906.270881][   T73]      netlink_unicast+0x449/0x710
[  906.270881][   T73]      netlink_sendmsg+0x723/0xbe0
[  906.270881][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  906.270881][   T73]      ___sys_sendmsg+0xee/0x170
[  906.270881][   T73]      __sys_sendmsg+0xcd/0x170
[  906.270881][   T73]      do_syscall_64+0xc6/0x1e0
[  906.270881][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  906.270881][   T73] 
[  906.272600][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  906.272879][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  906.272879][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  906.272879][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  906.272879][   T73]      fib6_nh_init+0xa22/0x1580
[  906.272879][   T73]      ip6_route_info_create+0xf18/0x17d0
[  906.272879][   T73]      ip6_route_add+0x1c/0x140
[  906.272879][   T73]      inet6_rtm_newroute+0x104/0x110
[  906.272879][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  906.272879][   T73]      netlink_rcv_skb+0x130/0x360
[  906.272879][   T73]      netlink_unicast+0x449/0x710
[  906.272879][   T73]      netlink_sendmsg+0x723/0xbe0
[  906.272879][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  906.272879][   T73]      ___sys_sendmsg+0xee/0x170
[  906.272879][   T73]      __sys_sendmsg+0xcd/0x170
[  906.272879][   T73]      do_syscall_64+0xc6/0x1e0
[  906.272879][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  906.272879][   T73] 
[  906.274896][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  906.274896][   T73]      dst_init+0x84/0x4a0
[  906.274896][   T73]      dst_alloc+0x97/0x150
[  906.274896][   T73]      ip6_dst_alloc+0x23/0x90
[  906.274896][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  906.274896][   T73]      ip6_pol_route+0x56f/0x840
[  906.274896][   T73]      fib6_rule_lookup+0x456/0x630
[  906.274896][   T73]      ip6_route_input+0x59c/0xa50
[  906.274896][   T73]      ipv6_rcv+0x397/0x810
[  906.274896][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  906.274896][   T73]      process_backlog+0x101/0x620
[  906.274896][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  906.274896][   T73]      net_rx_action+0x495/0xbe0
[  906.274896][   T73]      __do_softirq+0x1b5/0x7f6
[  906.274896][   T73] 
[  906.276777][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  906.276777][   T73]      netdev_get_by_index+0x5e/0x80
[  906.276777][   T73]      fib6_nh_init+0x3d8/0x1580
[  906.276777][   T73]      ip6_route_info_create+0xf18/0x17d0
[  906.276777][   T73]      ip6_route_add+0x1c/0x140
[  906.276777][   T73]      addrconf_prefix_route+0x2a6/0x430
[  906.276777][   T73]      inet6_addr_add+0x4f8/0xa40
[  906.276777][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  906.276777][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  906.276777][   T73]      netlink_rcv_skb+0x130/0x360
[  906.276777][   T73]      netlink_unicast+0x449/0x710
[  906.276777][   T73]      netlink_sendmsg+0x723/0xbe0
[  906.276777][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  906.276777][   T73]      ___sys_sendmsg+0xee/0x170
[  906.276777][   T73]      __sys_sendmsg+0xcd/0x170
[  906.276777][   T73]      do_syscall_64+0xc6/0x1e0
[  906.276777][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  906.276777][   T73] 
[  906.279035][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  906.279035][   T73]      netdev_get_by_index+0x5e/0x80
[  906.279035][   T73]      fib6_nh_init+0x3d8/0x1580
[  906.279035][   T73]      ip6_route_info_create+0xf18/0x17d0
[  906.279035][   T73]      addrconf_f6i_alloc+0x315/0x560
[  906.279035][   T73]      ipv6_add_addr+0x411/0x2000
[  906.279035][   T73]      inet6_addr_add+0x30e/0xa40
[  906.279035][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  906.279035][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  906.279035][   T73]      netlink_rcv_skb+0x130/0x360
[  906.279035][   T73]      netlink_unicast+0x449/0x710
[  906.279035][   T73]      netlink_sendmsg+0x723/0xbe0
[  906.279035][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  906.279035][   T73]      ___sys_sendmsg+0xee/0x170
[  906.279035][   T73]      __sys_sendmsg+0xcd/0x170
[  906.279035][   T73]      do_syscall_64+0xc6/0x1e0
[  906.279035][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  906.279035][   T73] 
[  906.281296][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  906.281296][   T73]      netdev_get_by_index+0x5e/0x80
[  906.281296][   T73]      fib6_nh_init+0x3d8/0x1580
[  906.281296][   T73]      ip6_route_info_create+0xf18/0x17d0
[  906.281296][   T73]      ip6_route_add+0x1c/0x140
[  906.281296][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  906.281296][   T73]      addrconf_add_dev+0xe2/0x170
[  906.281296][   T73]      inet6_addr_add+0x12f/0xa40
[  906.281296][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  906.281296][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  906.281296][   T73]      netlink_rcv_skb+0x130/0x360
[  906.281296][   T73]      netlink_unicast+0x449/0x710
[  906.281296][   T73]      netlink_sendmsg+0x723/0xbe0
[  906.281296][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  906.281296][   T73]      ___sys_sendmsg+0xee/0x170
[  906.281296][   T73]      __sys_sendmsg+0xcd/0x170
[  906.281296][   T73]      do_syscall_64+0xc6/0x1e0
[  906.281296][   T73] 
[  906.283575][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  906.283575][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  906.283575][   T73]      ipv6_find_idev+0x102/0x170
[  906.283575][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  906.283575][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  906.283575][   T73]      netlink_rcv_skb+0x130/0x360
[  906.283575][   T73]      netlink_unicast+0x449/0x710
[  906.283575][   T73]      netlink_sendmsg+0x723/0xbe0
[  906.283575][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  906.283575][   T73]      ___sys_sendmsg+0xee/0x170
[  906.283575][   T73]      __sys_sendmsg+0xcd/0x170
[  906.283575][   T73]      do_syscall_64+0xc6/0x1e0
[  906.283575][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  906.283575][   T73] 
[  906.285420][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  906.285420][   T73]      neigh_parms_alloc+0x1e5/0x510
[  906.285420][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  906.285420][   T73]      ipv6_find_idev+0x102/0x170
[  906.285420][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  906.285420][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  906.285420][   T73]      netlink_rcv_skb+0x130/0x360
[  906.285420][   T73]      netlink_unicast+0x449/0x710
[  906.285420][   T73]      netlink_sendmsg+0x723/0xbe0
[  906.285420][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  906.285420][   T73]      ___sys_sendmsg+0xee/0x170
[  906.285420][   T73]      __sys_sendmsg+0xcd/0x170
[  906.285420][   T73]      do_syscall_64+0xc6/0x1e0
[  906.285420][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  906.285420][   T73] 
[  906.287454][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  906.288177][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  906.288177][   T73]      netdev_get_by_index+0x5e/0x80
[  906.288177][   T73]      fib6_nh_init+0x3d8/0x1580
[  906.288177][   T73]      ip6_route_info_create+0xf18/0x17d0
[  906.288177][   T73]      addrconf_f6i_alloc+0x265/0x560
[  906.288177][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  906.288177][   T73]      addrconf_join_anycast+0x1c0/0x220
[  906.288177][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  906.288177][   T73]      addrconf_dad_completed+0x12b/0xe20
[  906.288177][   T73]      addrconf_dad_begin+0x310/0x670
[  906.288177][   T73]      addrconf_dad_work+0x10b/0xab0
[  906.288177][   T73]      process_one_work+0x84d/0x18a0
[  906.288177][   T73]      worker_thread+0x587/0xd30
[  906.288177][   T73]      kthread+0x28a/0x350
[  906.288177][   T73]      ret_from_fork+0x31/0x70
[  906.288177][   T73]      ret_from_fork_asm+0x1a/0x30
[  906.288177][   T73] 
[  906.290119][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  906.290119][   T73]      netdev_get_by_index+0x5e/0x80
[  906.290119][   T73]      fib6_nh_init+0x3d8/0x1580
[  906.290119][   T73]      ip6_route_info_create+0xf18/0x17d0
[  906.290119][   T73]      ip6_route_add+0x1c/0x140
[  906.290119][   T73]      addrconf_prefix_route+0x2a6/0x430
[  906.290119][   T73]      inet6_addr_add+0x4f8/0xa40
[  906.290119][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  906.290119][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  906.290119][   T73]      netlink_rcv_skb+0x130/0x360
[  906.290119][   T73]      netlink_unicast+0x449/0x710
[  906.290119][   T73]      netlink_sendmsg+0x723/0xbe0
[  906.290119][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  906.290119][   T73]      ___sys_sendmsg+0xee/0x170
[  906.290119][   T73]      __sys_sendmsg+0xcd/0x170
[  906.290119][   T73]      do_syscall_64+0xc6/0x1e0
[  906.290119][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  906.290119][   T73] 
[  906.292263][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  906.292263][   T73]      netdev_get_by_index+0x5e/0x80
[  906.292263][   T73]      fib6_nh_init+0x3d8/0x1580
[  906.292263][   T73]      ip6_route_info_create+0xf18/0x17d0
[  906.292263][   T73]      addrconf_f6i_alloc+0x315/0x560
[  906.292263][   T73]      ipv6_add_addr+0x411/0x2000
[  906.292263][   T73]      inet6_addr_add+0x30e/0xa40
[  906.292263][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  906.292263][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  906.292263][   T73]      netlink_rcv_skb+0x130/0x360
[  906.292263][   T73]      netlink_unicast+0x449/0x710
[  906.292263][   T73]      netlink_sendmsg+0x723/0xbe0
[  906.292263][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  906.292263][   T73]      ___sys_sendmsg+0xee/0x170
[  906.292263][   T73]      __sys_sendmsg+0xcd/0x170
[  906.292263][   T73]      do_syscall_64+0xc6/0x1e0
[  906.292263][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  906.292263][   T73] 
[  906.294552][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  906.294552][   T73]      netdev_get_by_index+0x5e/0x80
[  906.294552][   T73]      fib6_nh_init+0x3d8/0x1580
[  906.294552][   T73]      ip6_route_info_create+0xf18/0x17d0
[  906.294552][   T73]      ip6_route_add+0x1c/0x140
[  906.294552][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  906.294552][   T73]      addrconf_add_dev+0xe2/0x170
[  906.294552][   T73]      inet6_addr_add+0x12f/0xa40
[  906.294552][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  906.294552][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  906.294552][   T73]      netlink_rcv_skb+0x130/0x360
[  906.294552][   T73]      netlink_unicast+0x449/0x710
[  906.294552][   T73]      netlink_sendmsg+0x723/0xbe0
[  906.294552][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  906.294552][   T73]      ___sys_sendmsg+0xee/0x170
[  906.294552][   T73]      __sys_sendmsg+0xcd/0x170
[  906.294552][   T73]      do_syscall_64+0xc6/0x1e0
[  906.294552][   T73] 
[  906.296781][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  906.296781][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  906.296781][   T73]      ipv6_find_idev+0x102/0x170
[  906.296781][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  906.296781][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  906.296781][   T73]      netlink_rcv_skb+0x130/0x360
[  906.296781][   T73]      netlink_unicast+0x449/0x710
[  906.296781][   T73]      netlink_sendmsg+0x723/0xbe0
[  906.296781][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  906.296781][   T73]      ___sys_sendmsg+0xee/0x170
[  906.296781][   T73]      __sys_sendmsg+0xcd/0x170
[  906.296781][   T73]      do_syscall_64+0xc6/0x1e0
[  906.296781][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  906.296781][   T73] 
[  906.298528][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  906.298528][   T73]      neigh_parms_alloc+0x1e5/0x510
[  906.298528][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  906.298528][   T73]      ipv6_find_idev+0x102/0x170
[  906.298528][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  906.298528][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  906.298528][   T73]      netlink_rcv_skb+0x130/0x360
[  906.298528][   T73]      netlink_unicast+0x449/0x710
[  906.298528][   T73]      netlink_sendmsg+0x723/0xbe0
[  906.298528][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  906.298528][   T73]      ___sys_sendmsg+0xee/0x170
[  906.298528][   T73]      __sys_sendmsg+0xcd/0x170
[  906.298528][   T73]      do_syscall_64+0xc6/0x1e0
[  906.298528][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  906.298528][   T73] 
[  916.535720][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  916.536111][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  916.536111][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  916.536111][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  916.536111][   T73]      fib6_nh_init+0xa22/0x1580
[  916.536111][   T73]      ip6_route_info_create+0xf18/0x17d0
[  916.536111][   T73]      ip6_route_add+0x1c/0x140
[  916.536111][   T73]      inet6_rtm_newroute+0x104/0x110
[  916.536111][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  916.536111][   T73]      netlink_rcv_skb+0x130/0x360
[  916.536111][   T73]      netlink_unicast+0x449/0x710
[  916.536111][   T73]      netlink_sendmsg+0x723/0xbe0
[  916.536111][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  916.536111][   T73]      ___sys_sendmsg+0xee/0x170
[  916.536111][   T73]      __sys_sendmsg+0xcd/0x170
[  916.536111][   T73]      do_syscall_64+0xc6/0x1e0
[  916.536111][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  916.536111][   T73] 
[  916.537996][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  916.537996][   T73]      dst_init+0x84/0x4a0
[  916.537996][   T73]      dst_alloc+0x97/0x150
[  916.537996][   T73]      ip6_dst_alloc+0x23/0x90
[  916.537996][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  916.537996][   T73]      ip6_pol_route+0x56f/0x840
[  916.537996][   T73]      fib6_rule_lookup+0x456/0x630
[  916.537996][   T73]      ip6_route_input+0x59c/0xa50
[  916.537996][   T73]      ipv6_rcv+0x397/0x810
[  916.537996][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  916.537996][   T73]      process_backlog+0x101/0x620
[  916.537996][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  916.537996][   T73]      net_rx_action+0x495/0xbe0
[  916.537996][   T73]      __do_softirq+0x1b5/0x7f6
[  916.537996][   T73] 
[  916.539625][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  916.539625][   T73]      netdev_get_by_index+0x5e/0x80
[  916.539625][   T73]      fib6_nh_init+0x3d8/0x1580
[  916.539625][   T73]      ip6_route_info_create+0xf18/0x17d0
[  916.539625][   T73]      ip6_route_add+0x1c/0x140
[  916.539625][   T73]      addrconf_prefix_route+0x2a6/0x430
[  916.539625][   T73]      inet6_addr_add+0x4f8/0xa40
[  916.539625][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  916.539625][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  916.539625][   T73]      netlink_rcv_skb+0x130/0x360
[  916.539625][   T73]      netlink_unicast+0x449/0x710
[  916.539625][   T73]      netlink_sendmsg+0x723/0xbe0
[  916.539625][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  916.539625][   T73]      ___sys_sendmsg+0xee/0x170
[  916.539625][   T73]      __sys_sendmsg+0xcd/0x170
[  916.539625][   T73]      do_syscall_64+0xc6/0x1e0
[  916.539625][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  916.539625][   T73] 
[  916.541620][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  916.541620][   T73]      netdev_get_by_index+0x5e/0x80
[  916.541620][   T73]      fib6_nh_init+0x3d8/0x1580
[  916.541620][   T73]      ip6_route_info_create+0xf18/0x17d0
[  916.541620][   T73]      addrconf_f6i_alloc+0x315/0x560
[  916.541620][   T73]      ipv6_add_addr+0x411/0x2000
[  916.541620][   T73]      inet6_addr_add+0x30e/0xa40
[  916.541620][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  916.541620][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  916.541620][   T73]      netlink_rcv_skb+0x130/0x360
[  916.541620][   T73]      netlink_unicast+0x449/0x710
[  916.541620][   T73]      netlink_sendmsg+0x723/0xbe0
[  916.541620][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  916.541620][   T73]      ___sys_sendmsg+0xee/0x170
[  916.541620][   T73]      __sys_sendmsg+0xcd/0x170
[  916.541620][   T73]      do_syscall_64+0xc6/0x1e0
[  916.541620][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  916.541620][   T73] 
[  916.543610][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  916.543610][   T73]      netdev_get_by_index+0x5e/0x80
[  916.543610][   T73]      fib6_nh_init+0x3d8/0x1580
[  916.543610][   T73]      ip6_route_info_create+0xf18/0x17d0
[  916.543610][   T73]      ip6_route_add+0x1c/0x140
[  916.543610][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  916.543610][   T73]      addrconf_add_dev+0xe2/0x170
[  916.543610][   T73]      inet6_addr_add+0x12f/0xa40
[  916.543610][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  916.543610][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  916.543610][   T73]      netlink_rcv_skb+0x130/0x360
[  916.543610][   T73]      netlink_unicast+0x449/0x710
[  916.543610][   T73]      netlink_sendmsg+0x723/0xbe0
[  916.543610][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  916.543610][   T73]      ___sys_sendmsg+0xee/0x170
[  916.543610][   T73]      __sys_sendmsg+0xcd/0x170
[  916.543610][   T73]      do_syscall_64+0xc6/0x1e0
[  916.543610][   T73] 
[  916.545558][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  916.545558][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  916.545558][   T73]      ipv6_find_idev+0x102/0x170
[  916.545558][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  916.545558][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  916.545558][   T73]      netlink_rcv_skb+0x130/0x360
[  916.545558][   T73]      netlink_unicast+0x449/0x710
[  916.545558][   T73]      netlink_sendmsg+0x723/0xbe0
[  916.545558][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  916.545558][   T73]      ___sys_sendmsg+0xee/0x170
[  916.545558][   T73]      __sys_sendmsg+0xcd/0x170
[  916.545558][   T73]      do_syscall_64+0xc6/0x1e0
[  916.545558][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  916.545558][   T73] 
[  916.547082][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  916.547082][   T73]      neigh_parms_alloc+0x1e5/0x510
[  916.547082][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  916.547082][   T73]      ipv6_find_idev+0x102/0x170
[  916.547082][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  916.547082][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  916.547082][   T73]      netlink_rcv_skb+0x130/0x360
[  916.547082][   T73]      netlink_unicast+0x449/0x710
[  916.547082][   T73]      netlink_sendmsg+0x723/0xbe0
[  916.547082][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  916.547082][   T73]      ___sys_sendmsg+0xee/0x170
[  916.547082][   T73]      __sys_sendmsg+0xcd/0x170
[  916.547082][   T73]      do_syscall_64+0xc6/0x1e0
[  916.547082][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  916.547082][   T73] 
[  916.548782][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  916.549055][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  916.549055][   T73]      netdev_get_by_index+0x5e/0x80
[  916.549055][   T73]      fib6_nh_init+0x3d8/0x1580
[  916.549055][   T73]      ip6_route_info_create+0xf18/0x17d0
[  916.549055][   T73]      addrconf_f6i_alloc+0x265/0x560
[  916.549055][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  916.549055][   T73]      addrconf_join_anycast+0x1c0/0x220
[  916.549055][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  916.549055][   T73]      addrconf_dad_completed+0x12b/0xe20
[  916.549055][   T73]      addrconf_dad_begin+0x310/0x670
[  916.549055][   T73]      addrconf_dad_work+0x10b/0xab0
[  916.549055][   T73]      process_one_work+0x84d/0x18a0
[  916.549055][   T73]      worker_thread+0x587/0xd30
[  916.549055][   T73]      kthread+0x28a/0x350
[  916.549055][   T73]      ret_from_fork+0x31/0x70
[  916.549055][   T73]      ret_from_fork_asm+0x1a/0x30
[  916.549055][   T73] 
[  916.550963][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  916.550963][   T73]      netdev_get_by_index+0x5e/0x80
[  916.550963][   T73]      fib6_nh_init+0x3d8/0x1580
[  916.550963][   T73]      ip6_route_info_create+0xf18/0x17d0
[  916.550963][   T73]      ip6_route_add+0x1c/0x140
[  916.550963][   T73]      addrconf_prefix_route+0x2a6/0x430
[  916.550963][   T73]      inet6_addr_add+0x4f8/0xa40
[  916.550963][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  916.550963][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  916.550963][   T73]      netlink_rcv_skb+0x130/0x360
[  916.550963][   T73]      netlink_unicast+0x449/0x710
[  916.550963][   T73]      netlink_sendmsg+0x723/0xbe0
[  916.550963][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  916.550963][   T73]      ___sys_sendmsg+0xee/0x170
[  916.550963][   T73]      __sys_sendmsg+0xcd/0x170
[  916.550963][   T73]      do_syscall_64+0xc6/0x1e0
[  916.550963][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  916.550963][   T73] 
[  916.552980][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  916.552980][   T73]      netdev_get_by_index+0x5e/0x80
[  916.552980][   T73]      fib6_nh_init+0x3d8/0x1580
[  916.552980][   T73]      ip6_route_info_create+0xf18/0x17d0
[  916.552980][   T73]      addrconf_f6i_alloc+0x315/0x560
[  916.552980][   T73]      ipv6_add_addr+0x411/0x2000
[  916.552980][   T73]      inet6_addr_add+0x30e/0xa40
[  916.552980][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  916.552980][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  916.552980][   T73]      netlink_rcv_skb+0x130/0x360
[  916.552980][   T73]      netlink_unicast+0x449/0x710
[  916.552980][   T73]      netlink_sendmsg+0x723/0xbe0
[  916.552980][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  916.552980][   T73]      ___sys_sendmsg+0xee/0x170
[  916.552980][   T73]      __sys_sendmsg+0xcd/0x170
[  916.552980][   T73]      do_syscall_64+0xc6/0x1e0
[  916.552980][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  916.552980][   T73] 
[  916.554974][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  916.554974][   T73]      netdev_get_by_index+0x5e/0x80
[  916.554974][   T73]      fib6_nh_init+0x3d8/0x1580
[  916.554974][   T73]      ip6_route_info_create+0xf18/0x17d0
[  916.554974][   T73]      ip6_route_add+0x1c/0x140
[  916.554974][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  916.554974][   T73]      addrconf_add_dev+0xe2/0x170
[  916.554974][   T73]      inet6_addr_add+0x12f/0xa40
[  916.554974][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  916.554974][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  916.554974][   T73]      netlink_rcv_skb+0x130/0x360
[  916.554974][   T73]      netlink_unicast+0x449/0x710
[  916.554974][   T73]      netlink_sendmsg+0x723/0xbe0
[  916.554974][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  916.554974][   T73]      ___sys_sendmsg+0xee/0x170
[  916.554974][   T73]      __sys_sendmsg+0xcd/0x170
[  916.554974][   T73]      do_syscall_64+0xc6/0x1e0
[  916.554974][   T73] 
[  916.556924][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  916.556924][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  916.556924][   T73]      ipv6_find_idev+0x102/0x170
[  916.556924][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  916.556924][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  916.556924][   T73]      netlink_rcv_skb+0x130/0x360
[  916.556924][   T73]      netlink_unicast+0x449/0x710
[  916.556924][   T73]      netlink_sendmsg+0x723/0xbe0
[  916.556924][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  916.556924][   T73]      ___sys_sendmsg+0xee/0x170
[  916.556924][   T73]      __sys_sendmsg+0xcd/0x170
[  916.556924][   T73]      do_syscall_64+0xc6/0x1e0
[  916.556924][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  916.556924][   T73] 
[  916.558450][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  916.558450][   T73]      neigh_parms_alloc+0x1e5/0x510
[  916.558450][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  916.558450][   T73]      ipv6_find_idev+0x102/0x170
[  916.558450][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  916.558450][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  916.558450][   T73]      netlink_rcv_skb+0x130/0x360
[  916.558450][   T73]      netlink_unicast+0x449/0x710
[  916.558450][   T73]      netlink_sendmsg+0x723/0xbe0
[  916.558450][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  916.558450][   T73]      ___sys_sendmsg+0xee/0x170
[  916.558450][   T73]      __sys_sendmsg+0xcd/0x170
[  916.558450][   T73]      do_syscall_64+0xc6/0x1e0
[  916.558450][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  916.558450][   T73] 
[  916.560135][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  916.560414][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  916.560414][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  916.560414][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  916.560414][   T73]      fib6_nh_init+0xa22/0x1580
[  916.560414][   T73]      ip6_route_info_create+0xf18/0x17d0
[  916.560414][   T73]      ip6_route_add+0x1c/0x140
[  916.560414][   T73]      inet6_rtm_newroute+0x104/0x110
[  916.560414][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  916.560414][   T73]      netlink_rcv_skb+0x130/0x360
[  916.560414][   T73]      netlink_unicast+0x449/0x710
[  916.560414][   T73]      netlink_sendmsg+0x723/0xbe0
[  916.560414][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  916.560414][   T73]      ___sys_sendmsg+0xee/0x170
[  916.560414][   T73]      __sys_sendmsg+0xcd/0x170
[  916.560414][   T73]      do_syscall_64+0xc6/0x1e0
[  916.560414][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  916.560414][   T73] 
[  916.562347][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  916.562347][   T73]      dst_init+0x84/0x4a0
[  916.562347][   T73]      dst_alloc+0x97/0x150
[  916.562347][   T73]      ip6_dst_alloc+0x23/0x90
[  916.562347][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  916.562347][   T73]      ip6_pol_route+0x56f/0x840
[  916.562347][   T73]      fib6_rule_lookup+0x456/0x630
[  916.562347][   T73]      ip6_route_input+0x59c/0xa50
[  916.562347][   T73]      ipv6_rcv+0x397/0x810
[  916.562347][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  916.562347][   T73]      process_backlog+0x101/0x620
[  916.562347][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  916.562347][   T73]      net_rx_action+0x495/0xbe0
[  916.562347][   T73]      __do_softirq+0x1b5/0x7f6
[  916.562347][   T73] 
[  916.564096][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  916.564096][   T73]      netdev_get_by_index+0x5e/0x80
[  916.564096][   T73]      fib6_nh_init+0x3d8/0x1580
[  916.564096][   T73]      ip6_route_info_create+0xf18/0x17d0
[  916.564096][   T73]      ip6_route_add+0x1c/0x140
[  916.564096][   T73]      addrconf_prefix_route+0x2a6/0x430
[  916.564096][   T73]      inet6_addr_add+0x4f8/0xa40
[  916.564096][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  916.564096][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  916.564096][   T73]      netlink_rcv_skb+0x130/0x360
[  916.564096][   T73]      netlink_unicast+0x449/0x710
[  916.564096][   T73]      netlink_sendmsg+0x723/0xbe0
[  916.564096][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  916.564096][   T73]      ___sys_sendmsg+0xee/0x170
[  916.564096][   T73]      __sys_sendmsg+0xcd/0x170
[  916.564096][   T73]      do_syscall_64+0xc6/0x1e0
[  916.564096][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  916.564096][   T73] 
[  916.566214][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  916.566214][   T73]      netdev_get_by_index+0x5e/0x80
[  916.566214][   T73]      fib6_nh_init+0x3d8/0x1580
[  916.566214][   T73]      ip6_route_info_create+0xf18/0x17d0
[  916.566214][   T73]      addrconf_f6i_alloc+0x315/0x560
[  916.566214][   T73]      ipv6_add_addr+0x411/0x2000
[  916.566214][   T73]      inet6_addr_add+0x30e/0xa40
[  916.566214][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  916.566214][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  916.566214][   T73]      netlink_rcv_skb+0x130/0x360
[  916.566214][   T73]      netlink_unicast+0x449/0x710
[  916.566214][   T73]      netlink_sendmsg+0x723/0xbe0
[  916.566214][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  916.566214][   T73]      ___sys_sendmsg+0xee/0x170
[  916.566214][   T73]      __sys_sendmsg+0xcd/0x170
[  916.566214][   T73]      do_syscall_64+0xc6/0x1e0
[  916.566214][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  916.566214][   T73] 
[  916.568337][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  916.568337][   T73]      netdev_get_by_index+0x5e/0x80
[  916.568337][   T73]      fib6_nh_init+0x3d8/0x1580
[  916.568337][   T73]      ip6_route_info_create+0xf18/0x17d0
[  916.568337][   T73]      ip6_route_add+0x1c/0x140
[  916.568337][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  916.568337][   T73]      addrconf_add_dev+0xe2/0x170
[  916.568337][   T73]      inet6_addr_add+0x12f/0xa40
[  916.568337][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  916.568337][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  916.568337][   T73]      netlink_rcv_skb+0x130/0x360
[  916.568337][   T73]      netlink_unicast+0x449/0x710
[  916.568337][   T73]      netlink_sendmsg+0x723/0xbe0
[  916.568337][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  916.568337][   T73]      ___sys_sendmsg+0xee/0x170
[  916.568337][   T73]      __sys_sendmsg+0xcd/0x170
[  916.568337][   T73]      do_syscall_64+0xc6/0x1e0
[  916.568337][   T73] 
[  916.570480][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  916.570480][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  916.570480][   T73]      ipv6_find_idev+0x102/0x170
[  916.570480][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  916.570480][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  916.570480][   T73]      netlink_rcv_skb+0x130/0x360
[  916.570480][   T73]      netlink_unicast+0x449/0x710
[  916.570480][   T73]      netlink_sendmsg+0x723/0xbe0
[  916.570480][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  916.570480][   T73]      ___sys_sendmsg+0xee/0x170
[  916.570480][   T73]      __sys_sendmsg+0xcd/0x170
[  916.570480][   T73]      do_syscall_64+0xc6/0x1e0
[  916.570480][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  916.570480][   T73] 
[  916.572082][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  916.572082][   T73]      neigh_parms_alloc+0x1e5/0x510
[  916.572082][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  916.572082][   T73]      ipv6_find_idev+0x102/0x170
[  916.572082][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  916.572082][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  916.572082][   T73]      netlink_rcv_skb+0x130/0x360
[  916.572082][   T73]      netlink_unicast+0x449/0x710
[  916.572082][   T73]      netlink_sendmsg+0x723/0xbe0
[  916.572082][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  916.572082][   T73]      ___sys_sendmsg+0xee/0x170
[  916.572082][   T73]      __sys_sendmsg+0xcd/0x170
[  916.572082][   T73]      do_syscall_64+0xc6/0x1e0
[  916.572082][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  916.572082][   T73] 
[  916.573885][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  916.574154][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  916.574154][   T73]      netdev_get_by_index+0x5e/0x80
[  916.574154][   T73]      fib6_nh_init+0x3d8/0x1580
[  916.574154][   T73]      ip6_route_info_create+0xf18/0x17d0
[  916.574154][   T73]      addrconf_f6i_alloc+0x265/0x560
[  916.574154][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  916.574154][   T73]      addrconf_join_anycast+0x1c0/0x220
[  916.574154][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  916.574154][   T73]      addrconf_dad_completed+0x12b/0xe20
[  916.574154][   T73]      addrconf_dad_begin+0x310/0x670
[  916.574154][   T73]      addrconf_dad_work+0x10b/0xab0
[  916.574154][   T73]      process_one_work+0x84d/0x18a0
[  916.574154][   T73]      worker_thread+0x587/0xd30
[  916.574154][   T73]      kthread+0x28a/0x350
[  916.574154][   T73]      ret_from_fork+0x31/0x70
[  916.574154][   T73]      ret_from_fork_asm+0x1a/0x30
[  916.574154][   T73] 
[  916.576180][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  916.576180][   T73]      netdev_get_by_index+0x5e/0x80
[  916.576180][   T73]      fib6_nh_init+0x3d8/0x1580
[  916.576180][   T73]      ip6_route_info_create+0xf18/0x17d0
[  916.576180][   T73]      ip6_route_add+0x1c/0x140
[  916.576180][   T73]      addrconf_prefix_route+0x2a6/0x430
[  916.576180][   T73]      inet6_addr_add+0x4f8/0xa40
[  916.576180][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  916.576180][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  916.576180][   T73]      netlink_rcv_skb+0x130/0x360
[  916.576180][   T73]      netlink_unicast+0x449/0x710
[  916.576180][   T73]      netlink_sendmsg+0x723/0xbe0
[  916.576180][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  916.576180][   T73]      ___sys_sendmsg+0xee/0x170
[  916.576180][   T73]      __sys_sendmsg+0xcd/0x170
[  916.576180][   T73]      do_syscall_64+0xc6/0x1e0
[  916.576180][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  916.576180][   T73] 
[  916.578289][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  916.578289][   T73]      netdev_get_by_index+0x5e/0x80
[  916.578289][   T73]      fib6_nh_init+0x3d8/0x1580
[  916.578289][   T73]      ip6_route_info_create+0xf18/0x17d0
[  916.578289][   T73]      addrconf_f6i_alloc+0x315/0x560
[  916.578289][   T73]      ipv6_add_addr+0x411/0x2000
[  916.578289][   T73]      inet6_addr_add+0x30e/0xa40
[  916.578289][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  916.578289][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  916.578289][   T73]      netlink_rcv_skb+0x130/0x360
[  916.578289][   T73]      netlink_unicast+0x449/0x710
[  916.578289][   T73]      netlink_sendmsg+0x723/0xbe0
[  916.578289][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  916.578289][   T73]      ___sys_sendmsg+0xee/0x170
[  916.578289][   T73]      __sys_sendmsg+0xcd/0x170
[  916.578289][   T73]      do_syscall_64+0xc6/0x1e0
[  916.578289][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  916.578289][   T73] 
[  916.580424][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  916.580424][   T73]      netdev_get_by_index+0x5e/0x80
[  916.580424][   T73]      fib6_nh_init+0x3d8/0x1580
[  916.580424][   T73]      ip6_route_info_create+0xf18/0x17d0
[  916.580424][   T73]      ip6_route_add+0x1c/0x140
[  916.580424][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  916.580424][   T73]      addrconf_add_dev+0xe2/0x170
[  916.580424][   T73]      inet6_addr_add+0x12f/0xa40
[  916.580424][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  916.580424][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  916.580424][   T73]      netlink_rcv_skb+0x130/0x360
[  916.580424][   T73]      netlink_unicast+0x449/0x710
[  916.580424][   T73]      netlink_sendmsg+0x723/0xbe0
[  916.580424][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  916.580424][   T73]      ___sys_sendmsg+0xee/0x170
[  916.580424][   T73]      __sys_sendmsg+0xcd/0x170
[  916.580424][   T73]      do_syscall_64+0xc6/0x1e0
[  916.580424][   T73] 
[  916.582512][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  916.582512][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  916.582512][   T73]      ipv6_find_idev+0x102/0x170
[  916.582512][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  916.582512][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  916.582512][   T73]      netlink_rcv_skb+0x130/0x360
[  916.582512][   T73]      netlink_unicast+0x449/0x710
[  916.582512][   T73]      netlink_sendmsg+0x723/0xbe0
[  916.582512][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  916.582512][   T73]      ___sys_sendmsg+0xee/0x170
[  916.582512][   T73]      __sys_sendmsg+0xcd/0x170
[  916.582512][   T73]      do_syscall_64+0xc6/0x1e0
[  916.582512][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  916.582512][   T73] 
[  916.584104][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  916.584104][   T73]      neigh_parms_alloc+0x1e5/0x510
[  916.584104][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  916.584104][   T73]      ipv6_find_idev+0x102/0x170
[  916.584104][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  916.584104][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  916.584104][   T73]      netlink_rcv_skb+0x130/0x360
[  916.584104][   T73]      netlink_unicast+0x449/0x710
[  916.584104][   T73]      netlink_sendmsg+0x723/0xbe0
[  916.584104][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  916.584104][   T73]      ___sys_sendmsg+0xee/0x170
[  916.584104][   T73]      __sys_sendmsg+0xcd/0x170
[  916.584104][   T73]      do_syscall_64+0xc6/0x1e0
[  916.584104][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  916.584104][   T73] 
[  926.631782][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  926.632283][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  926.632283][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  926.632283][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  926.632283][   T73]      fib6_nh_init+0xa22/0x1580
[  926.632283][   T73]      ip6_route_info_create+0xf18/0x17d0
[  926.632283][   T73]      ip6_route_add+0x1c/0x140
[  926.632283][   T73]      inet6_rtm_newroute+0x104/0x110
[  926.632283][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  926.632283][   T73]      netlink_rcv_skb+0x130/0x360
[  926.632283][   T73]      netlink_unicast+0x449/0x710
[  926.632283][   T73]      netlink_sendmsg+0x723/0xbe0
[  926.632283][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  926.632283][   T73]      ___sys_sendmsg+0xee/0x170
[  926.632283][   T73]      __sys_sendmsg+0xcd/0x170
[  926.632283][   T73]      do_syscall_64+0xc6/0x1e0
[  926.632283][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  926.632283][   T73] 
[  926.634225][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  926.634225][   T73]      dst_init+0x84/0x4a0
[  926.634225][   T73]      dst_alloc+0x97/0x150
[  926.634225][   T73]      ip6_dst_alloc+0x23/0x90
[  926.634225][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  926.634225][   T73]      ip6_pol_route+0x56f/0x840
[  926.634225][   T73]      fib6_rule_lookup+0x456/0x630
[  926.634225][   T73]      ip6_route_input+0x59c/0xa50
[  926.634225][   T73]      ipv6_rcv+0x397/0x810
[  926.634225][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  926.634225][   T73]      process_backlog+0x101/0x620
[  926.634225][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  926.634225][   T73]      net_rx_action+0x495/0xbe0
[  926.634225][   T73]      __do_softirq+0x1b5/0x7f6
[  926.634225][   T73] 
[  926.635882][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  926.635882][   T73]      netdev_get_by_index+0x5e/0x80
[  926.635882][   T73]      fib6_nh_init+0x3d8/0x1580
[  926.635882][   T73]      ip6_route_info_create+0xf18/0x17d0
[  926.635882][   T73]      ip6_route_add+0x1c/0x140
[  926.635882][   T73]      addrconf_prefix_route+0x2a6/0x430
[  926.635882][   T73]      inet6_addr_add+0x4f8/0xa40
[  926.635882][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  926.635882][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  926.635882][   T73]      netlink_rcv_skb+0x130/0x360
[  926.635882][   T73]      netlink_unicast+0x449/0x710
[  926.635882][   T73]      netlink_sendmsg+0x723/0xbe0
[  926.635882][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  926.635882][   T73]      ___sys_sendmsg+0xee/0x170
[  926.635882][   T73]      __sys_sendmsg+0xcd/0x170
[  926.635882][   T73]      do_syscall_64+0xc6/0x1e0
[  926.635882][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  926.635882][   T73] 
[  926.637908][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  926.637908][   T73]      netdev_get_by_index+0x5e/0x80
[  926.637908][   T73]      fib6_nh_init+0x3d8/0x1580
[  926.637908][   T73]      ip6_route_info_create+0xf18/0x17d0
[  926.637908][   T73]      addrconf_f6i_alloc+0x315/0x560
[  926.637908][   T73]      ipv6_add_addr+0x411/0x2000
[  926.637908][   T73]      inet6_addr_add+0x30e/0xa40
[  926.637908][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  926.637908][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  926.637908][   T73]      netlink_rcv_skb+0x130/0x360
[  926.637908][   T73]      netlink_unicast+0x449/0x710
[  926.637908][   T73]      netlink_sendmsg+0x723/0xbe0
[  926.637908][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  926.637908][   T73]      ___sys_sendmsg+0xee/0x170
[  926.637908][   T73]      __sys_sendmsg+0xcd/0x170
[  926.637908][   T73]      do_syscall_64+0xc6/0x1e0
[  926.637908][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  926.637908][   T73] 
[  926.640043][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  926.640043][   T73]      netdev_get_by_index+0x5e/0x80
[  926.640043][   T73]      fib6_nh_init+0x3d8/0x1580
[  926.640043][   T73]      ip6_route_info_create+0xf18/0x17d0
[  926.640043][   T73]      ip6_route_add+0x1c/0x140
[  926.640043][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  926.640043][   T73]      addrconf_add_dev+0xe2/0x170
[  926.640043][   T73]      inet6_addr_add+0x12f/0xa40
[  926.640043][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  926.640043][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  926.640043][   T73]      netlink_rcv_skb+0x130/0x360
[  926.640043][   T73]      netlink_unicast+0x449/0x710
[  926.640043][   T73]      netlink_sendmsg+0x723/0xbe0
[  926.640043][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  926.640043][   T73]      ___sys_sendmsg+0xee/0x170
[  926.640043][   T73]      __sys_sendmsg+0xcd/0x170
[  926.640043][   T73]      do_syscall_64+0xc6/0x1e0
[  926.640043][   T73] 
[  926.642062][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  926.642062][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  926.642062][   T73]      ipv6_find_idev+0x102/0x170
[  926.642062][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  926.642062][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  926.642062][   T73]      netlink_rcv_skb+0x130/0x360
[  926.642062][   T73]      netlink_unicast+0x449/0x710
[  926.642062][   T73]      netlink_sendmsg+0x723/0xbe0
[  926.642062][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  926.642062][   T73]      ___sys_sendmsg+0xee/0x170
[  926.642062][   T73]      __sys_sendmsg+0xcd/0x170
[  926.642062][   T73]      do_syscall_64+0xc6/0x1e0
[  926.642062][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  926.642062][   T73] 
[  926.643706][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  926.643706][   T73]      neigh_parms_alloc+0x1e5/0x510
[  926.643706][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  926.643706][   T73]      ipv6_find_idev+0x102/0x170
[  926.643706][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  926.643706][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  926.643706][   T73]      netlink_rcv_skb+0x130/0x360
[  926.643706][   T73]      netlink_unicast+0x449/0x710
[  926.643706][   T73]      netlink_sendmsg+0x723/0xbe0
[  926.643706][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  926.643706][   T73]      ___sys_sendmsg+0xee/0x170
[  926.643706][   T73]      __sys_sendmsg+0xcd/0x170
[  926.643706][   T73]      do_syscall_64+0xc6/0x1e0
[  926.643706][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  926.643706][   T73] 
[  926.645444][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  926.645745][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  926.645745][   T73]      netdev_get_by_index+0x5e/0x80
[  926.645745][   T73]      fib6_nh_init+0x3d8/0x1580
[  926.645745][   T73]      ip6_route_info_create+0xf18/0x17d0
[  926.645745][   T73]      addrconf_f6i_alloc+0x265/0x560
[  926.645745][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  926.645745][   T73]      addrconf_join_anycast+0x1c0/0x220
[  926.645745][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  926.645745][   T73]      addrconf_dad_completed+0x12b/0xe20
[  926.645745][   T73]      addrconf_dad_begin+0x310/0x670
[  926.645745][   T73]      addrconf_dad_work+0x10b/0xab0
[  926.645745][   T73]      process_one_work+0x84d/0x18a0
[  926.645745][   T73]      worker_thread+0x587/0xd30
[  926.645745][   T73]      kthread+0x28a/0x350
[  926.645745][   T73]      ret_from_fork+0x31/0x70
[  926.645745][   T73]      ret_from_fork_asm+0x1a/0x30
[  926.645745][   T73] 
[  926.647665][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  926.647665][   T73]      netdev_get_by_index+0x5e/0x80
[  926.647665][   T73]      fib6_nh_init+0x3d8/0x1580
[  926.647665][   T73]      ip6_route_info_create+0xf18/0x17d0
[  926.647665][   T73]      ip6_route_add+0x1c/0x140
[  926.647665][   T73]      addrconf_prefix_route+0x2a6/0x430
[  926.647665][   T73]      inet6_addr_add+0x4f8/0xa40
[  926.647665][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  926.647665][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  926.647665][   T73]      netlink_rcv_skb+0x130/0x360
[  926.647665][   T73]      netlink_unicast+0x449/0x710
[  926.647665][   T73]      netlink_sendmsg+0x723/0xbe0
[  926.647665][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  926.647665][   T73]      ___sys_sendmsg+0xee/0x170
[  926.647665][   T73]      __sys_sendmsg+0xcd/0x170
[  926.647665][   T73]      do_syscall_64+0xc6/0x1e0
[  926.647665][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  926.647665][   T73] 
[  926.649668][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  926.649668][   T73]      netdev_get_by_index+0x5e/0x80
[  926.649668][   T73]      fib6_nh_init+0x3d8/0x1580
[  926.649668][   T73]      ip6_route_info_create+0xf18/0x17d0
[  926.649668][   T73]      addrconf_f6i_alloc+0x315/0x560
[  926.649668][   T73]      ipv6_add_addr+0x411/0x2000
[  926.649668][   T73]      inet6_addr_add+0x30e/0xa40
[  926.649668][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  926.649668][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  926.649668][   T73]      netlink_rcv_skb+0x130/0x360
[  926.649668][   T73]      netlink_unicast+0x449/0x710
[  926.649668][   T73]      netlink_sendmsg+0x723/0xbe0
[  926.649668][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  926.649668][   T73]      ___sys_sendmsg+0xee/0x170
[  926.649668][   T73]      __sys_sendmsg+0xcd/0x170
[  926.649668][   T73]      do_syscall_64+0xc6/0x1e0
[  926.649668][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  926.649668][   T73] 
[  926.651687][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  926.651687][   T73]      netdev_get_by_index+0x5e/0x80
[  926.651687][   T73]      fib6_nh_init+0x3d8/0x1580
[  926.651687][   T73]      ip6_route_info_create+0xf18/0x17d0
[  926.651687][   T73]      ip6_route_add+0x1c/0x140
[  926.651687][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  926.651687][   T73]      addrconf_add_dev+0xe2/0x170
[  926.651687][   T73]      inet6_addr_add+0x12f/0xa40
[  926.651687][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  926.651687][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  926.651687][   T73]      netlink_rcv_skb+0x130/0x360
[  926.651687][   T73]      netlink_unicast+0x449/0x710
[  926.651687][   T73]      netlink_sendmsg+0x723/0xbe0
[  926.651687][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  926.651687][   T73]      ___sys_sendmsg+0xee/0x170
[  926.651687][   T73]      __sys_sendmsg+0xcd/0x170
[  926.651687][   T73]      do_syscall_64+0xc6/0x1e0
[  926.651687][   T73] 
[  926.653674][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  926.653674][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  926.653674][   T73]      ipv6_find_idev+0x102/0x170
[  926.653674][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  926.653674][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  926.653674][   T73]      netlink_rcv_skb+0x130/0x360
[  926.653674][   T73]      netlink_unicast+0x449/0x710
[  926.653674][   T73]      netlink_sendmsg+0x723/0xbe0
[  926.653674][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  926.653674][   T73]      ___sys_sendmsg+0xee/0x170
[  926.653674][   T73]      __sys_sendmsg+0xcd/0x170
[  926.653674][   T73]      do_syscall_64+0xc6/0x1e0
[  926.653674][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  926.653674][   T73] 
[  926.655219][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  926.655219][   T73]      neigh_parms_alloc+0x1e5/0x510
[  926.655219][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  926.655219][   T73]      ipv6_find_idev+0x102/0x170
[  926.655219][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  926.655219][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  926.655219][   T73]      netlink_rcv_skb+0x130/0x360
[  926.655219][   T73]      netlink_unicast+0x449/0x710
[  926.655219][   T73]      netlink_sendmsg+0x723/0xbe0
[  926.655219][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  926.655219][   T73]      ___sys_sendmsg+0xee/0x170
[  926.655219][   T73]      __sys_sendmsg+0xcd/0x170
[  926.655219][   T73]      do_syscall_64+0xc6/0x1e0
[  926.655219][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  926.655219][   T73] 
[  926.656929][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  926.657205][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  926.657205][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  926.657205][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  926.657205][   T73]      fib6_nh_init+0xa22/0x1580
[  926.657205][   T73]      ip6_route_info_create+0xf18/0x17d0
[  926.657205][   T73]      ip6_route_add+0x1c/0x140
[  926.657205][   T73]      inet6_rtm_newroute+0x104/0x110
[  926.657205][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  926.657205][   T73]      netlink_rcv_skb+0x130/0x360
[  926.657205][   T73]      netlink_unicast+0x449/0x710
[  926.657205][   T73]      netlink_sendmsg+0x723/0xbe0
[  926.657205][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  926.657205][   T73]      ___sys_sendmsg+0xee/0x170
[  926.657205][   T73]      __sys_sendmsg+0xcd/0x170
[  926.657205][   T73]      do_syscall_64+0xc6/0x1e0
[  926.657205][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  926.657205][   T73] 
[  926.659275][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  926.659275][   T73]      dst_init+0x84/0x4a0
[  926.659275][   T73]      dst_alloc+0x97/0x150
[  926.659275][   T73]      ip6_dst_alloc+0x23/0x90
[  926.659275][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  926.659275][   T73]      ip6_pol_route+0x56f/0x840
[  926.659275][   T73]      fib6_rule_lookup+0x456/0x630
[  926.659275][   T73]      ip6_route_input+0x59c/0xa50
[  926.659275][   T73]      ipv6_rcv+0x397/0x810
[  926.659275][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  926.659275][   T73]      process_backlog+0x101/0x620
[  926.659275][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  926.659275][   T73]      net_rx_action+0x495/0xbe0
[  926.659275][   T73]      __do_softirq+0x1b5/0x7f6
[  926.659275][   T73] 
[  926.661269][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  926.661269][   T73]      netdev_get_by_index+0x5e/0x80
[  926.661269][   T73]      fib6_nh_init+0x3d8/0x1580
[  926.661269][   T73]      ip6_route_info_create+0xf18/0x17d0
[  926.661269][   T73]      ip6_route_add+0x1c/0x140
[  926.661269][   T73]      addrconf_prefix_route+0x2a6/0x430
[  926.661269][   T73]      inet6_addr_add+0x4f8/0xa40
[  926.661269][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  926.661269][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  926.661269][   T73]      netlink_rcv_skb+0x130/0x360
[  926.661269][   T73]      netlink_unicast+0x449/0x710
[  926.661269][   T73]      netlink_sendmsg+0x723/0xbe0
[  926.661269][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  926.661269][   T73]      ___sys_sendmsg+0xee/0x170
[  926.661269][   T73]      __sys_sendmsg+0xcd/0x170
[  926.661269][   T73]      do_syscall_64+0xc6/0x1e0
[  926.661269][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  926.661269][   T73] 
[  926.663520][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  926.663520][   T73]      netdev_get_by_index+0x5e/0x80
[  926.663520][   T73]      fib6_nh_init+0x3d8/0x1580
[  926.663520][   T73]      ip6_route_info_create+0xf18/0x17d0
[  926.663520][   T73]      addrconf_f6i_alloc+0x315/0x560
[  926.663520][   T73]      ipv6_add_addr+0x411/0x2000
[  926.663520][   T73]      inet6_addr_add+0x30e/0xa40
[  926.663520][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  926.663520][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  926.663520][   T73]      netlink_rcv_skb+0x130/0x360
[  926.663520][   T73]      netlink_unicast+0x449/0x710
[  926.663520][   T73]      netlink_sendmsg+0x723/0xbe0
[  926.663520][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  926.663520][   T73]      ___sys_sendmsg+0xee/0x170
[  926.663520][   T73]      __sys_sendmsg+0xcd/0x170
[  926.663520][   T73]      do_syscall_64+0xc6/0x1e0
[  926.663520][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  926.663520][   T73] 
[  926.665819][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  926.665819][   T73]      netdev_get_by_index+0x5e/0x80
[  926.665819][   T73]      fib6_nh_init+0x3d8/0x1580
[  926.665819][   T73]      ip6_route_info_create+0xf18/0x17d0
[  926.665819][   T73]      ip6_route_add+0x1c/0x140
[  926.665819][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  926.665819][   T73]      addrconf_add_dev+0xe2/0x170
[  926.665819][   T73]      inet6_addr_add+0x12f/0xa40
[  926.665819][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  926.665819][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  926.665819][   T73]      netlink_rcv_skb+0x130/0x360
[  926.665819][   T73]      netlink_unicast+0x449/0x710
[  926.665819][   T73]      netlink_sendmsg+0x723/0xbe0
[  926.665819][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  926.665819][   T73]      ___sys_sendmsg+0xee/0x170
[  926.665819][   T73]      __sys_sendmsg+0xcd/0x170
[  926.665819][   T73]      do_syscall_64+0xc6/0x1e0
[  926.665819][   T73] 
[  926.668154][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  926.668154][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  926.668154][   T73]      ipv6_find_idev+0x102/0x170
[  926.668154][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  926.668154][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  926.668154][   T73]      netlink_rcv_skb+0x130/0x360
[  926.668154][   T73]      netlink_unicast+0x449/0x710
[  926.668154][   T73]      netlink_sendmsg+0x723/0xbe0
[  926.668154][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  926.668154][   T73]      ___sys_sendmsg+0xee/0x170
[  926.668154][   T73]      __sys_sendmsg+0xcd/0x170
[  926.668154][   T73]      do_syscall_64+0xc6/0x1e0
[  926.668154][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  926.668154][   T73] 
[  926.670093][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  926.670093][   T73]      neigh_parms_alloc+0x1e5/0x510
[  926.670093][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  926.670093][   T73]      ipv6_find_idev+0x102/0x170
[  926.670093][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  926.670093][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  926.670093][   T73]      netlink_rcv_skb+0x130/0x360
[  926.670093][   T73]      netlink_unicast+0x449/0x710
[  926.670093][   T73]      netlink_sendmsg+0x723/0xbe0
[  926.670093][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  926.670093][   T73]      ___sys_sendmsg+0xee/0x170
[  926.670093][   T73]      __sys_sendmsg+0xcd/0x170
[  926.670093][   T73]      do_syscall_64+0xc6/0x1e0
[  926.670093][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  926.670093][   T73] 
[  926.672208][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  926.672509][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  926.672509][   T73]      netdev_get_by_index+0x5e/0x80
[  926.672509][   T73]      fib6_nh_init+0x3d8/0x1580
[  926.672509][   T73]      ip6_route_info_create+0xf18/0x17d0
[  926.672509][   T73]      addrconf_f6i_alloc+0x265/0x560
[  926.672509][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  926.672509][   T73]      addrconf_join_anycast+0x1c0/0x220
[  926.672509][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  926.672509][   T73]      addrconf_dad_completed+0x12b/0xe20
[  926.672509][   T73]      addrconf_dad_begin+0x310/0x670
[  926.672509][   T73]      addrconf_dad_work+0x10b/0xab0
[  926.672509][   T73]      process_one_work+0x84d/0x18a0
[  926.672509][   T73]      worker_thread+0x587/0xd30
[  926.672509][   T73]      kthread+0x28a/0x350
[  926.672509][   T73]      ret_from_fork+0x31/0x70
[  926.672509][   T73]      ret_from_fork_asm+0x1a/0x30
[  926.672509][   T73] 
[  926.674854][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  926.674854][   T73]      netdev_get_by_index+0x5e/0x80
[  926.674854][   T73]      fib6_nh_init+0x3d8/0x1580
[  926.674854][   T73]      ip6_route_info_create+0xf18/0x17d0
[  926.674854][   T73]      ip6_route_add+0x1c/0x140
[  926.674854][   T73]      addrconf_prefix_route+0x2a6/0x430
[  926.674854][   T73]      inet6_addr_add+0x4f8/0xa40
[  926.674854][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  926.674854][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  926.674854][   T73]      netlink_rcv_skb+0x130/0x360
[  926.674854][   T73]      netlink_unicast+0x449/0x710
[  926.674854][   T73]      netlink_sendmsg+0x723/0xbe0
[  926.674854][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  926.674854][   T73]      ___sys_sendmsg+0xee/0x170
[  926.674854][   T73]      __sys_sendmsg+0xcd/0x170
[  926.674854][   T73]      do_syscall_64+0xc6/0x1e0
[  926.674854][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  926.674854][   T73] 
[  926.677207][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  926.677207][   T73]      netdev_get_by_index+0x5e/0x80
[  926.677207][   T73]      fib6_nh_init+0x3d8/0x1580
[  926.677207][   T73]      ip6_route_info_create+0xf18/0x17d0
[  926.677207][   T73]      addrconf_f6i_alloc+0x315/0x560
[  926.677207][   T73]      ipv6_add_addr+0x411/0x2000
[  926.677207][   T73]      inet6_addr_add+0x30e/0xa40
[  926.677207][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  926.677207][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  926.677207][   T73]      netlink_rcv_skb+0x130/0x360
[  926.677207][   T73]      netlink_unicast+0x449/0x710
[  926.677207][   T73]      netlink_sendmsg+0x723/0xbe0
[  926.677207][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  926.677207][   T73]      ___sys_sendmsg+0xee/0x170
[  926.677207][   T73]      __sys_sendmsg+0xcd/0x170
[  926.677207][   T73]      do_syscall_64+0xc6/0x1e0
[  926.677207][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  926.677207][   T73] 
[  926.679615][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  926.679615][   T73]      netdev_get_by_index+0x5e/0x80
[  926.679615][   T73]      fib6_nh_init+0x3d8/0x1580
[  926.679615][   T73]      ip6_route_info_create+0xf18/0x17d0
[  926.679615][   T73]      ip6_route_add+0x1c/0x140
[  926.679615][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  926.679615][   T73]      addrconf_add_dev+0xe2/0x170
[  926.679615][   T73]      inet6_addr_add+0x12f/0xa40
[  926.679615][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  926.679615][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  926.679615][   T73]      netlink_rcv_skb+0x130/0x360
[  926.679615][   T73]      netlink_unicast+0x449/0x710
[  926.679615][   T73]      netlink_sendmsg+0x723/0xbe0
[  926.679615][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  926.679615][   T73]      ___sys_sendmsg+0xee/0x170
[  926.679615][   T73]      __sys_sendmsg+0xcd/0x170
[  926.679615][   T73]      do_syscall_64+0xc6/0x1e0
[  926.679615][   T73] 
[  926.682072][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  926.682072][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  926.682072][   T73]      ipv6_find_idev+0x102/0x170
[  926.682072][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  926.682072][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  926.682072][   T73]      netlink_rcv_skb+0x130/0x360
[  926.682072][   T73]      netlink_unicast+0x449/0x710
[  926.682072][   T73]      netlink_sendmsg+0x723/0xbe0
[  926.682072][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  926.682072][   T73]      ___sys_sendmsg+0xee/0x170
[  926.682072][   T73]      __sys_sendmsg+0xcd/0x170
[  926.682072][   T73]      do_syscall_64+0xc6/0x1e0
[  926.682072][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  926.682072][   T73] 
[  926.683953][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  926.683953][   T73]      neigh_parms_alloc+0x1e5/0x510
[  926.683953][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  926.683953][   T73]      ipv6_find_idev+0x102/0x170
[  926.683953][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  926.683953][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  926.683953][   T73]      netlink_rcv_skb+0x130/0x360
[  926.683953][   T73]      netlink_unicast+0x449/0x710
[  926.683953][   T73]      netlink_sendmsg+0x723/0xbe0
[  926.683953][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  926.683953][   T73]      ___sys_sendmsg+0xee/0x170
[  926.683953][   T73]      __sys_sendmsg+0xcd/0x170
[  926.683953][   T73]      do_syscall_64+0xc6/0x1e0
[  926.683953][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  926.683953][   T73] 
[  936.807850][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  936.808300][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  936.808300][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  936.808300][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  936.808300][   T73]      fib6_nh_init+0xa22/0x1580
[  936.808300][   T73]      ip6_route_info_create+0xf18/0x17d0
[  936.808300][   T73]      ip6_route_add+0x1c/0x140
[  936.808300][   T73]      inet6_rtm_newroute+0x104/0x110
[  936.808300][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  936.808300][   T73]      netlink_rcv_skb+0x130/0x360
[  936.808300][   T73]      netlink_unicast+0x449/0x710
[  936.808300][   T73]      netlink_sendmsg+0x723/0xbe0
[  936.808300][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  936.808300][   T73]      ___sys_sendmsg+0xee/0x170
[  936.808300][   T73]      __sys_sendmsg+0xcd/0x170
[  936.808300][   T73]      do_syscall_64+0xc6/0x1e0
[  936.808300][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  936.808300][   T73] 
[  936.810391][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  936.810391][   T73]      dst_init+0x84/0x4a0
[  936.810391][   T73]      dst_alloc+0x97/0x150
[  936.810391][   T73]      ip6_dst_alloc+0x23/0x90
[  936.810391][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  936.810391][   T73]      ip6_pol_route+0x56f/0x840
[  936.810391][   T73]      fib6_rule_lookup+0x456/0x630
[  936.810391][   T73]      ip6_route_input+0x59c/0xa50
[  936.810391][   T73]      ipv6_rcv+0x397/0x810
[  936.810391][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  936.810391][   T73]      process_backlog+0x101/0x620
[  936.810391][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  936.810391][   T73]      net_rx_action+0x495/0xbe0
[  936.810391][   T73]      __do_softirq+0x1b5/0x7f6
[  936.810391][   T73] 
[  936.812209][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  936.812209][   T73]      netdev_get_by_index+0x5e/0x80
[  936.812209][   T73]      fib6_nh_init+0x3d8/0x1580
[  936.812209][   T73]      ip6_route_info_create+0xf18/0x17d0
[  936.812209][   T73]      ip6_route_add+0x1c/0x140
[  936.812209][   T73]      addrconf_prefix_route+0x2a6/0x430
[  936.812209][   T73]      inet6_addr_add+0x4f8/0xa40
[  936.812209][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  936.812209][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  936.812209][   T73]      netlink_rcv_skb+0x130/0x360
[  936.812209][   T73]      netlink_unicast+0x449/0x710
[  936.812209][   T73]      netlink_sendmsg+0x723/0xbe0
[  936.812209][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  936.812209][   T73]      ___sys_sendmsg+0xee/0x170
[  936.812209][   T73]      __sys_sendmsg+0xcd/0x170
[  936.812209][   T73]      do_syscall_64+0xc6/0x1e0
[  936.812209][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  936.812209][   T73] 
[  936.814408][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  936.814408][   T73]      netdev_get_by_index+0x5e/0x80
[  936.814408][   T73]      fib6_nh_init+0x3d8/0x1580
[  936.814408][   T73]      ip6_route_info_create+0xf18/0x17d0
[  936.814408][   T73]      addrconf_f6i_alloc+0x315/0x560
[  936.814408][   T73]      ipv6_add_addr+0x411/0x2000
[  936.814408][   T73]      inet6_addr_add+0x30e/0xa40
[  936.814408][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  936.814408][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  936.814408][   T73]      netlink_rcv_skb+0x130/0x360
[  936.814408][   T73]      netlink_unicast+0x449/0x710
[  936.814408][   T73]      netlink_sendmsg+0x723/0xbe0
[  936.814408][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  936.814408][   T73]      ___sys_sendmsg+0xee/0x170
[  936.814408][   T73]      __sys_sendmsg+0xcd/0x170
[  936.814408][   T73]      do_syscall_64+0xc6/0x1e0
[  936.814408][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  936.814408][   T73] 
[  936.816430][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  936.816430][   T73]      netdev_get_by_index+0x5e/0x80
[  936.816430][   T73]      fib6_nh_init+0x3d8/0x1580
[  936.816430][   T73]      ip6_route_info_create+0xf18/0x17d0
[  936.816430][   T73]      ip6_route_add+0x1c/0x140
[  936.816430][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  936.816430][   T73]      addrconf_add_dev+0xe2/0x170
[  936.816430][   T73]      inet6_addr_add+0x12f/0xa40
[  936.816430][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  936.816430][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  936.816430][   T73]      netlink_rcv_skb+0x130/0x360
[  936.816430][   T73]      netlink_unicast+0x449/0x710
[  936.816430][   T73]      netlink_sendmsg+0x723/0xbe0
[  936.816430][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  936.816430][   T73]      ___sys_sendmsg+0xee/0x170
[  936.816430][   T73]      __sys_sendmsg+0xcd/0x170
[  936.816430][   T73]      do_syscall_64+0xc6/0x1e0
[  936.816430][   T73] 
[  936.818449][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  936.818449][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  936.818449][   T73]      ipv6_find_idev+0x102/0x170
[  936.818449][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  936.818449][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  936.818449][   T73]      netlink_rcv_skb+0x130/0x360
[  936.818449][   T73]      netlink_unicast+0x449/0x710
[  936.818449][   T73]      netlink_sendmsg+0x723/0xbe0
[  936.818449][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  936.818449][   T73]      ___sys_sendmsg+0xee/0x170
[  936.818449][   T73]      __sys_sendmsg+0xcd/0x170
[  936.818449][   T73]      do_syscall_64+0xc6/0x1e0
[  936.818449][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  936.818449][   T73] 
[  936.820010][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  936.820010][   T73]      neigh_parms_alloc+0x1e5/0x510
[  936.820010][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  936.820010][   T73]      ipv6_find_idev+0x102/0x170
[  936.820010][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  936.820010][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  936.820010][   T73]      netlink_rcv_skb+0x130/0x360
[  936.820010][   T73]      netlink_unicast+0x449/0x710
[  936.820010][   T73]      netlink_sendmsg+0x723/0xbe0
[  936.820010][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  936.820010][   T73]      ___sys_sendmsg+0xee/0x170
[  936.820010][   T73]      __sys_sendmsg+0xcd/0x170
[  936.820010][   T73]      do_syscall_64+0xc6/0x1e0
[  936.820010][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  936.820010][   T73] 
[  936.821757][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  936.822038][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  936.822038][   T73]      netdev_get_by_index+0x5e/0x80
[  936.822038][   T73]      fib6_nh_init+0x3d8/0x1580
[  936.822038][   T73]      ip6_route_info_create+0xf18/0x17d0
[  936.822038][   T73]      addrconf_f6i_alloc+0x265/0x560
[  936.822038][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  936.822038][   T73]      addrconf_join_anycast+0x1c0/0x220
[  936.822038][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  936.822038][   T73]      addrconf_dad_completed+0x12b/0xe20
[  936.822038][   T73]      addrconf_dad_begin+0x310/0x670
[  936.822038][   T73]      addrconf_dad_work+0x10b/0xab0
[  936.822038][   T73]      process_one_work+0x84d/0x18a0
[  936.822038][   T73]      worker_thread+0x587/0xd30
[  936.822038][   T73]      kthread+0x28a/0x350
[  936.822038][   T73]      ret_from_fork+0x31/0x70
[  936.822038][   T73]      ret_from_fork_asm+0x1a/0x30
[  936.822038][   T73] 
[  936.824023][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  936.824023][   T73]      netdev_get_by_index+0x5e/0x80
[  936.824023][   T73]      fib6_nh_init+0x3d8/0x1580
[  936.824023][   T73]      ip6_route_info_create+0xf18/0x17d0
[  936.824023][   T73]      ip6_route_add+0x1c/0x140
[  936.824023][   T73]      addrconf_prefix_route+0x2a6/0x430
[  936.824023][   T73]      inet6_addr_add+0x4f8/0xa40
[  936.824023][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  936.824023][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  936.824023][   T73]      netlink_rcv_skb+0x130/0x360
[  936.824023][   T73]      netlink_unicast+0x449/0x710
[  936.824023][   T73]      netlink_sendmsg+0x723/0xbe0
[  936.824023][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  936.824023][   T73]      ___sys_sendmsg+0xee/0x170
[  936.824023][   T73]      __sys_sendmsg+0xcd/0x170
[  936.824023][   T73]      do_syscall_64+0xc6/0x1e0
[  936.824023][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  936.824023][   T73] 
[  936.826054][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  936.826054][   T73]      netdev_get_by_index+0x5e/0x80
[  936.826054][   T73]      fib6_nh_init+0x3d8/0x1580
[  936.826054][   T73]      ip6_route_info_create+0xf18/0x17d0
[  936.826054][   T73]      addrconf_f6i_alloc+0x315/0x560
[  936.826054][   T73]      ipv6_add_addr+0x411/0x2000
[  936.826054][   T73]      inet6_addr_add+0x30e/0xa40
[  936.826054][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  936.826054][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  936.826054][   T73]      netlink_rcv_skb+0x130/0x360
[  936.826054][   T73]      netlink_unicast+0x449/0x710
[  936.826054][   T73]      netlink_sendmsg+0x723/0xbe0
[  936.826054][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  936.826054][   T73]      ___sys_sendmsg+0xee/0x170
[  936.826054][   T73]      __sys_sendmsg+0xcd/0x170
[  936.826054][   T73]      do_syscall_64+0xc6/0x1e0
[  936.826054][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  936.826054][   T73] 
[  936.828085][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  936.828085][   T73]      netdev_get_by_index+0x5e/0x80
[  936.828085][   T73]      fib6_nh_init+0x3d8/0x1580
[  936.828085][   T73]      ip6_route_info_create+0xf18/0x17d0
[  936.828085][   T73]      ip6_route_add+0x1c/0x140
[  936.828085][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  936.828085][   T73]      addrconf_add_dev+0xe2/0x170
[  936.828085][   T73]      inet6_addr_add+0x12f/0xa40
[  936.828085][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  936.828085][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  936.828085][   T73]      netlink_rcv_skb+0x130/0x360
[  936.828085][   T73]      netlink_unicast+0x449/0x710
[  936.828085][   T73]      netlink_sendmsg+0x723/0xbe0
[  936.828085][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  936.828085][   T73]      ___sys_sendmsg+0xee/0x170
[  936.828085][   T73]      __sys_sendmsg+0xcd/0x170
[  936.828085][   T73]      do_syscall_64+0xc6/0x1e0
[  936.828085][   T73] 
[  936.830078][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  936.830078][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  936.830078][   T73]      ipv6_find_idev+0x102/0x170
[  936.830078][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  936.830078][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  936.830078][   T73]      netlink_rcv_skb+0x130/0x360
[  936.830078][   T73]      netlink_unicast+0x449/0x710
[  936.830078][   T73]      netlink_sendmsg+0x723/0xbe0
[  936.830078][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  936.830078][   T73]      ___sys_sendmsg+0xee/0x170
[  936.830078][   T73]      __sys_sendmsg+0xcd/0x170
[  936.830078][   T73]      do_syscall_64+0xc6/0x1e0
[  936.830078][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  936.830078][   T73] 
[  936.831765][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  936.831765][   T73]      neigh_parms_alloc+0x1e5/0x510
[  936.831765][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  936.831765][   T73]      ipv6_find_idev+0x102/0x170
[  936.831765][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  936.831765][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  936.831765][   T73]      netlink_rcv_skb+0x130/0x360
[  936.831765][   T73]      netlink_unicast+0x449/0x710
[  936.831765][   T73]      netlink_sendmsg+0x723/0xbe0
[  936.831765][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  936.831765][   T73]      ___sys_sendmsg+0xee/0x170
[  936.831765][   T73]      __sys_sendmsg+0xcd/0x170
[  936.831765][   T73]      do_syscall_64+0xc6/0x1e0
[  936.831765][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  936.831765][   T73] 
[  936.833621][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  936.833924][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  936.833924][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  936.833924][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  936.833924][   T73]      fib6_nh_init+0xa22/0x1580
[  936.833924][   T73]      ip6_route_info_create+0xf18/0x17d0
[  936.833924][   T73]      ip6_route_add+0x1c/0x140
[  936.833924][   T73]      inet6_rtm_newroute+0x104/0x110
[  936.833924][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  936.833924][   T73]      netlink_rcv_skb+0x130/0x360
[  936.833924][   T73]      netlink_unicast+0x449/0x710
[  936.833924][   T73]      netlink_sendmsg+0x723/0xbe0
[  936.833924][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  936.833924][   T73]      ___sys_sendmsg+0xee/0x170
[  936.833924][   T73]      __sys_sendmsg+0xcd/0x170
[  936.833924][   T73]      do_syscall_64+0xc6/0x1e0
[  936.833924][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  936.833924][   T73] 
[  936.836204][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  936.836204][   T73]      dst_init+0x84/0x4a0
[  936.836204][   T73]      dst_alloc+0x97/0x150
[  936.836204][   T73]      ip6_dst_alloc+0x23/0x90
[  936.836204][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  936.836204][   T73]      ip6_pol_route+0x56f/0x840
[  936.836204][   T73]      fib6_rule_lookup+0x456/0x630
[  936.836204][   T73]      ip6_route_input+0x59c/0xa50
[  936.836204][   T73]      ipv6_rcv+0x397/0x810
[  936.836204][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  936.836204][   T73]      process_backlog+0x101/0x620
[  936.836204][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  936.836204][   T73]      net_rx_action+0x495/0xbe0
[  936.836204][   T73]      __do_softirq+0x1b5/0x7f6
[  936.836204][   T73] 
[  936.838155][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  936.838155][   T73]      netdev_get_by_index+0x5e/0x80
[  936.838155][   T73]      fib6_nh_init+0x3d8/0x1580
[  936.838155][   T73]      ip6_route_info_create+0xf18/0x17d0
[  936.838155][   T73]      ip6_route_add+0x1c/0x140
[  936.838155][   T73]      addrconf_prefix_route+0x2a6/0x430
[  936.838155][   T73]      inet6_addr_add+0x4f8/0xa40
[  936.838155][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  936.838155][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  936.838155][   T73]      netlink_rcv_skb+0x130/0x360
[  936.838155][   T73]      netlink_unicast+0x449/0x710
[  936.838155][   T73]      netlink_sendmsg+0x723/0xbe0
[  936.838155][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  936.838155][   T73]      ___sys_sendmsg+0xee/0x170
[  936.838155][   T73]      __sys_sendmsg+0xcd/0x170
[  936.838155][   T73]      do_syscall_64+0xc6/0x1e0
[  936.838155][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  936.838155][   T73] 
[  936.840528][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  936.840528][   T73]      netdev_get_by_index+0x5e/0x80
[  936.840528][   T73]      fib6_nh_init+0x3d8/0x1580
[  936.840528][   T73]      ip6_route_info_create+0xf18/0x17d0
[  936.840528][   T73]      addrconf_f6i_alloc+0x315/0x560
[  936.840528][   T73]      ipv6_add_addr+0x411/0x2000
[  936.840528][   T73]      inet6_addr_add+0x30e/0xa40
[  936.840528][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  936.840528][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  936.840528][   T73]      netlink_rcv_skb+0x130/0x360
[  936.840528][   T73]      netlink_unicast+0x449/0x710
[  936.840528][   T73]      netlink_sendmsg+0x723/0xbe0
[  936.840528][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  936.840528][   T73]      ___sys_sendmsg+0xee/0x170
[  936.840528][   T73]      __sys_sendmsg+0xcd/0x170
[  936.840528][   T73]      do_syscall_64+0xc6/0x1e0
[  936.840528][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  936.840528][   T73] 
[  936.843023][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  936.843023][   T73]      netdev_get_by_index+0x5e/0x80
[  936.843023][   T73]      fib6_nh_init+0x3d8/0x1580
[  936.843023][   T73]      ip6_route_info_create+0xf18/0x17d0
[  936.843023][   T73]      ip6_route_add+0x1c/0x140
[  936.843023][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  936.843023][   T73]      addrconf_add_dev+0xe2/0x170
[  936.843023][   T73]      inet6_addr_add+0x12f/0xa40
[  936.843023][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  936.843023][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  936.843023][   T73]      netlink_rcv_skb+0x130/0x360
[  936.843023][   T73]      netlink_unicast+0x449/0x710
[  936.843023][   T73]      netlink_sendmsg+0x723/0xbe0
[  936.843023][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  936.843023][   T73]      ___sys_sendmsg+0xee/0x170
[  936.843023][   T73]      __sys_sendmsg+0xcd/0x170
[  936.843023][   T73]      do_syscall_64+0xc6/0x1e0
[  936.843023][   T73] 
[  936.845380][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  936.845380][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  936.845380][   T73]      ipv6_find_idev+0x102/0x170
[  936.845380][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  936.845380][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  936.845380][   T73]      netlink_rcv_skb+0x130/0x360
[  936.845380][   T73]      netlink_unicast+0x449/0x710
[  936.845380][   T73]      netlink_sendmsg+0x723/0xbe0
[  936.845380][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  936.845380][   T73]      ___sys_sendmsg+0xee/0x170
[  936.845380][   T73]      __sys_sendmsg+0xcd/0x170
[  936.845380][   T73]      do_syscall_64+0xc6/0x1e0
[  936.845380][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  936.845380][   T73] 
[  936.847110][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  936.847110][   T73]      neigh_parms_alloc+0x1e5/0x510
[  936.847110][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  936.847110][   T73]      ipv6_find_idev+0x102/0x170
[  936.847110][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  936.847110][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  936.847110][   T73]      netlink_rcv_skb+0x130/0x360
[  936.847110][   T73]      netlink_unicast+0x449/0x710
[  936.847110][   T73]      netlink_sendmsg+0x723/0xbe0
[  936.847110][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  936.847110][   T73]      ___sys_sendmsg+0xee/0x170
[  936.847110][   T73]      __sys_sendmsg+0xcd/0x170
[  936.847110][   T73]      do_syscall_64+0xc6/0x1e0
[  936.847110][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  936.847110][   T73] 
[  936.849115][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  936.849413][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  936.849413][   T73]      netdev_get_by_index+0x5e/0x80
[  936.849413][   T73]      fib6_nh_init+0x3d8/0x1580
[  936.849413][   T73]      ip6_route_info_create+0xf18/0x17d0
[  936.849413][   T73]      addrconf_f6i_alloc+0x265/0x560
[  936.849413][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  936.849413][   T73]      addrconf_join_anycast+0x1c0/0x220
[  936.849413][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  936.849413][   T73]      addrconf_dad_completed+0x12b/0xe20
[  936.849413][   T73]      addrconf_dad_begin+0x310/0x670
[  936.849413][   T73]      addrconf_dad_work+0x10b/0xab0
[  936.849413][   T73]      process_one_work+0x84d/0x18a0
[  936.849413][   T73]      worker_thread+0x587/0xd30
[  936.849413][   T73]      kthread+0x28a/0x350
[  936.849413][   T73]      ret_from_fork+0x31/0x70
[  936.849413][   T73]      ret_from_fork_asm+0x1a/0x30
[  936.849413][   T73] 
[  936.851766][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  936.851766][   T73]      netdev_get_by_index+0x5e/0x80
[  936.851766][   T73]      fib6_nh_init+0x3d8/0x1580
[  936.851766][   T73]      ip6_route_info_create+0xf18/0x17d0
[  936.851766][   T73]      ip6_route_add+0x1c/0x140
[  936.851766][   T73]      addrconf_prefix_route+0x2a6/0x430
[  936.851766][   T73]      inet6_addr_add+0x4f8/0xa40
[  936.851766][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  936.851766][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  936.851766][   T73]      netlink_rcv_skb+0x130/0x360
[  936.851766][   T73]      netlink_unicast+0x449/0x710
[  936.851766][   T73]      netlink_sendmsg+0x723/0xbe0
[  936.851766][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  936.851766][   T73]      ___sys_sendmsg+0xee/0x170
[  936.851766][   T73]      __sys_sendmsg+0xcd/0x170
[  936.851766][   T73]      do_syscall_64+0xc6/0x1e0
[  936.851766][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  936.851766][   T73] 
[  936.854224][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  936.854224][   T73]      netdev_get_by_index+0x5e/0x80
[  936.854224][   T73]      fib6_nh_init+0x3d8/0x1580
[  936.854224][   T73]      ip6_route_info_create+0xf18/0x17d0
[  936.854224][   T73]      addrconf_f6i_alloc+0x315/0x560
[  936.854224][   T73]      ipv6_add_addr+0x411/0x2000
[  936.854224][   T73]      inet6_addr_add+0x30e/0xa40
[  936.854224][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  936.854224][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  936.854224][   T73]      netlink_rcv_skb+0x130/0x360
[  936.854224][   T73]      netlink_unicast+0x449/0x710
[  936.854224][   T73]      netlink_sendmsg+0x723/0xbe0
[  936.854224][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  936.854224][   T73]      ___sys_sendmsg+0xee/0x170
[  936.854224][   T73]      __sys_sendmsg+0xcd/0x170
[  936.854224][   T73]      do_syscall_64+0xc6/0x1e0
[  936.854224][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  936.854224][   T73] 
[  936.856663][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  936.856663][   T73]      netdev_get_by_index+0x5e/0x80
[  936.856663][   T73]      fib6_nh_init+0x3d8/0x1580
[  936.856663][   T73]      ip6_route_info_create+0xf18/0x17d0
[  936.856663][   T73]      ip6_route_add+0x1c/0x140
[  936.856663][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  936.856663][   T73]      addrconf_add_dev+0xe2/0x170
[  936.856663][   T73]      inet6_addr_add+0x12f/0xa40
[  936.856663][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  936.856663][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  936.856663][   T73]      netlink_rcv_skb+0x130/0x360
[  936.856663][   T73]      netlink_unicast+0x449/0x710
[  936.856663][   T73]      netlink_sendmsg+0x723/0xbe0
[  936.856663][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  936.856663][   T73]      ___sys_sendmsg+0xee/0x170
[  936.856663][   T73]      __sys_sendmsg+0xcd/0x170
[  936.856663][   T73]      do_syscall_64+0xc6/0x1e0
[  936.856663][   T73] 
[  936.859059][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  936.859059][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  936.859059][   T73]      ipv6_find_idev+0x102/0x170
[  936.859059][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  936.859059][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  936.859059][   T73]      netlink_rcv_skb+0x130/0x360
[  936.859059][   T73]      netlink_unicast+0x449/0x710
[  936.859059][   T73]      netlink_sendmsg+0x723/0xbe0
[  936.859059][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  936.859059][   T73]      ___sys_sendmsg+0xee/0x170
[  936.859059][   T73]      __sys_sendmsg+0xcd/0x170
[  936.859059][   T73]      do_syscall_64+0xc6/0x1e0
[  936.859059][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  936.859059][   T73] 
[  936.860811][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  936.860811][   T73]      neigh_parms_alloc+0x1e5/0x510
[  936.860811][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  936.860811][   T73]      ipv6_find_idev+0x102/0x170
[  936.860811][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  936.860811][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  936.860811][   T73]      netlink_rcv_skb+0x130/0x360
[  936.860811][   T73]      netlink_unicast+0x449/0x710
[  936.860811][   T73]      netlink_sendmsg+0x723/0xbe0
[  936.860811][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  936.860811][   T73]      ___sys_sendmsg+0xee/0x170
[  936.860811][   T73]      __sys_sendmsg+0xcd/0x170
[  936.860811][   T73]      do_syscall_64+0xc6/0x1e0
[  936.860811][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  936.860811][   T73] 
[  947.103775][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  947.104352][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  947.104352][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  947.104352][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  947.104352][   T73]      fib6_nh_init+0xa22/0x1580
[  947.104352][   T73]      ip6_route_info_create+0xf18/0x17d0
[  947.104352][   T73]      ip6_route_add+0x1c/0x140
[  947.104352][   T73]      inet6_rtm_newroute+0x104/0x110
[  947.104352][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  947.104352][   T73]      netlink_rcv_skb+0x130/0x360
[  947.104352][   T73]      netlink_unicast+0x449/0x710
[  947.104352][   T73]      netlink_sendmsg+0x723/0xbe0
[  947.104352][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  947.104352][   T73]      ___sys_sendmsg+0xee/0x170
[  947.104352][   T73]      __sys_sendmsg+0xcd/0x170
[  947.104352][   T73]      do_syscall_64+0xc6/0x1e0
[  947.104352][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  947.104352][   T73] 
[  947.107288][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  947.107288][   T73]      dst_init+0x84/0x4a0
[  947.107288][   T73]      dst_alloc+0x97/0x150
[  947.107288][   T73]      ip6_dst_alloc+0x23/0x90
[  947.107288][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  947.107288][   T73]      ip6_pol_route+0x56f/0x840
[  947.107288][   T73]      fib6_rule_lookup+0x456/0x630
[  947.107288][   T73]      ip6_route_input+0x59c/0xa50
[  947.107288][   T73]      ipv6_rcv+0x397/0x810
[  947.107288][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  947.107288][   T73]      process_backlog+0x101/0x620
[  947.107288][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  947.107288][   T73]      net_rx_action+0x495/0xbe0
[  947.107288][   T73]      __do_softirq+0x1b5/0x7f6
[  947.107288][   T73] 
[  947.109872][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  947.109872][   T73]      netdev_get_by_index+0x5e/0x80
[  947.109872][   T73]      fib6_nh_init+0x3d8/0x1580
[  947.109872][   T73]      ip6_route_info_create+0xf18/0x17d0
[  947.109872][   T73]      ip6_route_add+0x1c/0x140
[  947.109872][   T73]      addrconf_prefix_route+0x2a6/0x430
[  947.109872][   T73]      inet6_addr_add+0x4f8/0xa40
[  947.109872][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  947.109872][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  947.109872][   T73]      netlink_rcv_skb+0x130/0x360
[  947.109872][   T73]      netlink_unicast+0x449/0x710
[  947.109872][   T73]      netlink_sendmsg+0x723/0xbe0
[  947.109872][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  947.109872][   T73]      ___sys_sendmsg+0xee/0x170
[  947.109872][   T73]      __sys_sendmsg+0xcd/0x170
[  947.109872][   T73]      do_syscall_64+0xc6/0x1e0
[  947.109872][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  947.109872][   T73] 
[  947.112457][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  947.112457][   T73]      netdev_get_by_index+0x5e/0x80
[  947.112457][   T73]      fib6_nh_init+0x3d8/0x1580
[  947.112457][   T73]      ip6_route_info_create+0xf18/0x17d0
[  947.112457][   T73]      addrconf_f6i_alloc+0x315/0x560
[  947.112457][   T73]      ipv6_add_addr+0x411/0x2000
[  947.112457][   T73]      inet6_addr_add+0x30e/0xa40
[  947.112457][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  947.112457][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  947.112457][   T73]      netlink_rcv_skb+0x130/0x360
[  947.112457][   T73]      netlink_unicast+0x449/0x710
[  947.112457][   T73]      netlink_sendmsg+0x723/0xbe0
[  947.112457][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  947.112457][   T73]      ___sys_sendmsg+0xee/0x170
[  947.112457][   T73]      __sys_sendmsg+0xcd/0x170
[  947.112457][   T73]      do_syscall_64+0xc6/0x1e0
[  947.112457][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  947.112457][   T73] 
[  947.114947][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  947.114947][   T73]      netdev_get_by_index+0x5e/0x80
[  947.114947][   T73]      fib6_nh_init+0x3d8/0x1580
[  947.114947][   T73]      ip6_route_info_create+0xf18/0x17d0
[  947.114947][   T73]      ip6_route_add+0x1c/0x140
[  947.114947][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  947.114947][   T73]      addrconf_add_dev+0xe2/0x170
[  947.114947][   T73]      inet6_addr_add+0x12f/0xa40
[  947.114947][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  947.114947][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  947.114947][   T73]      netlink_rcv_skb+0x130/0x360
[  947.114947][   T73]      netlink_unicast+0x449/0x710
[  947.114947][   T73]      netlink_sendmsg+0x723/0xbe0
[  947.114947][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  947.114947][   T73]      ___sys_sendmsg+0xee/0x170
[  947.114947][   T73]      __sys_sendmsg+0xcd/0x170
[  947.114947][   T73]      do_syscall_64+0xc6/0x1e0
[  947.114947][   T73] 
[  947.116965][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  947.116965][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  947.116965][   T73]      ipv6_find_idev+0x102/0x170
[  947.116965][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  947.116965][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  947.116965][   T73]      netlink_rcv_skb+0x130/0x360
[  947.116965][   T73]      netlink_unicast+0x449/0x710
[  947.116965][   T73]      netlink_sendmsg+0x723/0xbe0
[  947.116965][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  947.116965][   T73]      ___sys_sendmsg+0xee/0x170
[  947.116965][   T73]      __sys_sendmsg+0xcd/0x170
[  947.116965][   T73]      do_syscall_64+0xc6/0x1e0
[  947.116965][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  947.116965][   T73] 
[  947.118831][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  947.118831][   T73]      neigh_parms_alloc+0x1e5/0x510
[  947.118831][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  947.118831][   T73]      ipv6_find_idev+0x102/0x170
[  947.118831][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  947.118831][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  947.118831][   T73]      netlink_rcv_skb+0x130/0x360
[  947.118831][   T73]      netlink_unicast+0x449/0x710
[  947.118831][   T73]      netlink_sendmsg+0x723/0xbe0
[  947.118831][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  947.118831][   T73]      ___sys_sendmsg+0xee/0x170
[  947.118831][   T73]      __sys_sendmsg+0xcd/0x170
[  947.118831][   T73]      do_syscall_64+0xc6/0x1e0
[  947.118831][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  947.118831][   T73] 
[  947.120631][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  947.120940][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  947.120940][   T73]      netdev_get_by_index+0x5e/0x80
[  947.120940][   T73]      fib6_nh_init+0x3d8/0x1580
[  947.120940][   T73]      ip6_route_info_create+0xf18/0x17d0
[  947.120940][   T73]      addrconf_f6i_alloc+0x265/0x560
[  947.120940][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  947.120940][   T73]      addrconf_join_anycast+0x1c0/0x220
[  947.120940][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  947.120940][   T73]      addrconf_dad_completed+0x12b/0xe20
[  947.120940][   T73]      addrconf_dad_begin+0x310/0x670
[  947.120940][   T73]      addrconf_dad_work+0x10b/0xab0
[  947.120940][   T73]      process_one_work+0x84d/0x18a0
[  947.120940][   T73]      worker_thread+0x587/0xd30
[  947.120940][   T73]      kthread+0x28a/0x350
[  947.120940][   T73]      ret_from_fork+0x31/0x70
[  947.120940][   T73]      ret_from_fork_asm+0x1a/0x30
[  947.120940][   T73] 
[  947.122951][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  947.122951][   T73]      netdev_get_by_index+0x5e/0x80
[  947.122951][   T73]      fib6_nh_init+0x3d8/0x1580
[  947.122951][   T73]      ip6_route_info_create+0xf18/0x17d0
[  947.122951][   T73]      ip6_route_add+0x1c/0x140
[  947.122951][   T73]      addrconf_prefix_route+0x2a6/0x430
[  947.122951][   T73]      inet6_addr_add+0x4f8/0xa40
[  947.122951][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  947.122951][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  947.122951][   T73]      netlink_rcv_skb+0x130/0x360
[  947.122951][   T73]      netlink_unicast+0x449/0x710
[  947.122951][   T73]      netlink_sendmsg+0x723/0xbe0
[  947.122951][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  947.122951][   T73]      ___sys_sendmsg+0xee/0x170
[  947.122951][   T73]      __sys_sendmsg+0xcd/0x170
[  947.122951][   T73]      do_syscall_64+0xc6/0x1e0
[  947.122951][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  947.122951][   T73] 
[  947.125261][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  947.125261][   T73]      netdev_get_by_index+0x5e/0x80
[  947.125261][   T73]      fib6_nh_init+0x3d8/0x1580
[  947.125261][   T73]      ip6_route_info_create+0xf18/0x17d0
[  947.125261][   T73]      addrconf_f6i_alloc+0x315/0x560
[  947.125261][   T73]      ipv6_add_addr+0x411/0x2000
[  947.125261][   T73]      inet6_addr_add+0x30e/0xa40
[  947.125261][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  947.125261][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  947.125261][   T73]      netlink_rcv_skb+0x130/0x360
[  947.125261][   T73]      netlink_unicast+0x449/0x710
[  947.125261][   T73]      netlink_sendmsg+0x723/0xbe0
[  947.125261][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  947.125261][   T73]      ___sys_sendmsg+0xee/0x170
[  947.125261][   T73]      __sys_sendmsg+0xcd/0x170
[  947.125261][   T73]      do_syscall_64+0xc6/0x1e0
[  947.125261][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  947.125261][   T73] 
[  947.127821][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  947.127821][   T73]      netdev_get_by_index+0x5e/0x80
[  947.127821][   T73]      fib6_nh_init+0x3d8/0x1580
[  947.127821][   T73]      ip6_route_info_create+0xf18/0x17d0
[  947.127821][   T73]      ip6_route_add+0x1c/0x140
[  947.127821][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  947.127821][   T73]      addrconf_add_dev+0xe2/0x170
[  947.127821][   T73]      inet6_addr_add+0x12f/0xa40
[  947.127821][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  947.127821][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  947.127821][   T73]      netlink_rcv_skb+0x130/0x360
[  947.127821][   T73]      netlink_unicast+0x449/0x710
[  947.127821][   T73]      netlink_sendmsg+0x723/0xbe0
[  947.127821][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  947.127821][   T73]      ___sys_sendmsg+0xee/0x170
[  947.127821][   T73]      __sys_sendmsg+0xcd/0x170
[  947.127821][   T73]      do_syscall_64+0xc6/0x1e0
[  947.127821][   T73] 
[  947.129823][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  947.129823][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  947.129823][   T73]      ipv6_find_idev+0x102/0x170
[  947.129823][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  947.129823][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  947.129823][   T73]      netlink_rcv_skb+0x130/0x360
[  947.129823][   T73]      netlink_unicast+0x449/0x710
[  947.129823][   T73]      netlink_sendmsg+0x723/0xbe0
[  947.129823][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  947.129823][   T73]      ___sys_sendmsg+0xee/0x170
[  947.129823][   T73]      __sys_sendmsg+0xcd/0x170
[  947.129823][   T73]      do_syscall_64+0xc6/0x1e0
[  947.129823][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  947.129823][   T73] 
[  947.131378][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  947.131378][   T73]      neigh_parms_alloc+0x1e5/0x510
[  947.131378][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  947.131378][   T73]      ipv6_find_idev+0x102/0x170
[  947.131378][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  947.131378][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  947.131378][   T73]      netlink_rcv_skb+0x130/0x360
[  947.131378][   T73]      netlink_unicast+0x449/0x710
[  947.131378][   T73]      netlink_sendmsg+0x723/0xbe0
[  947.131378][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  947.131378][   T73]      ___sys_sendmsg+0xee/0x170
[  947.131378][   T73]      __sys_sendmsg+0xcd/0x170
[  947.131378][   T73]      do_syscall_64+0xc6/0x1e0
[  947.131378][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  947.131378][   T73] 
[  947.133116][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  947.133389][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  947.133389][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  947.133389][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  947.133389][   T73]      fib6_nh_init+0xa22/0x1580
[  947.133389][   T73]      ip6_route_info_create+0xf18/0x17d0
[  947.133389][   T73]      ip6_route_add+0x1c/0x140
[  947.133389][   T73]      inet6_rtm_newroute+0x104/0x110
[  947.133389][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  947.133389][   T73]      netlink_rcv_skb+0x130/0x360
[  947.133389][   T73]      netlink_unicast+0x449/0x710
[  947.133389][   T73]      netlink_sendmsg+0x723/0xbe0
[  947.133389][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  947.133389][   T73]      ___sys_sendmsg+0xee/0x170
[  947.133389][   T73]      __sys_sendmsg+0xcd/0x170
[  947.133389][   T73]      do_syscall_64+0xc6/0x1e0
[  947.133389][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  947.133389][   T73] 
[  947.135479][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  947.135479][   T73]      dst_init+0x84/0x4a0
[  947.135479][   T73]      dst_alloc+0x97/0x150
[  947.135479][   T73]      ip6_dst_alloc+0x23/0x90
[  947.135479][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  947.135479][   T73]      ip6_pol_route+0x56f/0x840
[  947.135479][   T73]      fib6_rule_lookup+0x456/0x630
[  947.135479][   T73]      ip6_route_input+0x59c/0xa50
[  947.135479][   T73]      ipv6_rcv+0x397/0x810
[  947.135479][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  947.135479][   T73]      process_backlog+0x101/0x620
[  947.135479][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  947.135479][   T73]      net_rx_action+0x495/0xbe0
[  947.135479][   T73]      __do_softirq+0x1b5/0x7f6
[  947.135479][   T73] 
[  947.137388][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  947.137388][   T73]      netdev_get_by_index+0x5e/0x80
[  947.137388][   T73]      fib6_nh_init+0x3d8/0x1580
[  947.137388][   T73]      ip6_route_info_create+0xf18/0x17d0
[  947.137388][   T73]      ip6_route_add+0x1c/0x140
[  947.137388][   T73]      addrconf_prefix_route+0x2a6/0x430
[  947.137388][   T73]      inet6_addr_add+0x4f8/0xa40
[  947.137388][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  947.137388][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  947.137388][   T73]      netlink_rcv_skb+0x130/0x360
[  947.137388][   T73]      netlink_unicast+0x449/0x710
[  947.137388][   T73]      netlink_sendmsg+0x723/0xbe0
[  947.137388][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  947.137388][   T73]      ___sys_sendmsg+0xee/0x170
[  947.137388][   T73]      __sys_sendmsg+0xcd/0x170
[  947.137388][   T73]      do_syscall_64+0xc6/0x1e0
[  947.137388][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  947.137388][   T73] 
[  947.139647][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  947.139647][   T73]      netdev_get_by_index+0x5e/0x80
[  947.139647][   T73]      fib6_nh_init+0x3d8/0x1580
[  947.139647][   T73]      ip6_route_info_create+0xf18/0x17d0
[  947.139647][   T73]      addrconf_f6i_alloc+0x315/0x560
[  947.139647][   T73]      ipv6_add_addr+0x411/0x2000
[  947.139647][   T73]      inet6_addr_add+0x30e/0xa40
[  947.139647][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  947.139647][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  947.139647][   T73]      netlink_rcv_skb+0x130/0x360
[  947.139647][   T73]      netlink_unicast+0x449/0x710
[  947.139647][   T73]      netlink_sendmsg+0x723/0xbe0
[  947.139647][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  947.139647][   T73]      ___sys_sendmsg+0xee/0x170
[  947.139647][   T73]      __sys_sendmsg+0xcd/0x170
[  947.139647][   T73]      do_syscall_64+0xc6/0x1e0
[  947.139647][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  947.139647][   T73] 
[  947.141932][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  947.141932][   T73]      netdev_get_by_index+0x5e/0x80
[  947.141932][   T73]      fib6_nh_init+0x3d8/0x1580
[  947.141932][   T73]      ip6_route_info_create+0xf18/0x17d0
[  947.141932][   T73]      ip6_route_add+0x1c/0x140
[  947.141932][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  947.141932][   T73]      addrconf_add_dev+0xe2/0x170
[  947.141932][   T73]      inet6_addr_add+0x12f/0xa40
[  947.141932][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  947.141932][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  947.141932][   T73]      netlink_rcv_skb+0x130/0x360
[  947.141932][   T73]      netlink_unicast+0x449/0x710
[  947.141932][   T73]      netlink_sendmsg+0x723/0xbe0
[  947.141932][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  947.141932][   T73]      ___sys_sendmsg+0xee/0x170
[  947.141932][   T73]      __sys_sendmsg+0xcd/0x170
[  947.141932][   T73]      do_syscall_64+0xc6/0x1e0
[  947.141932][   T73] 
[  947.144097][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  947.144097][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  947.144097][   T73]      ipv6_find_idev+0x102/0x170
[  947.144097][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  947.144097][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  947.144097][   T73]      netlink_rcv_skb+0x130/0x360
[  947.144097][   T73]      netlink_unicast+0x449/0x710
[  947.144097][   T73]      netlink_sendmsg+0x723/0xbe0
[  947.144097][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  947.144097][   T73]      ___sys_sendmsg+0xee/0x170
[  947.144097][   T73]      __sys_sendmsg+0xcd/0x170
[  947.144097][   T73]      do_syscall_64+0xc6/0x1e0
[  947.144097][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  947.144097][   T73] 
[  947.145911][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  947.145911][   T73]      neigh_parms_alloc+0x1e5/0x510
[  947.145911][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  947.145911][   T73]      ipv6_find_idev+0x102/0x170
[  947.145911][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  947.145911][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  947.145911][   T73]      netlink_rcv_skb+0x130/0x360
[  947.145911][   T73]      netlink_unicast+0x449/0x710
[  947.145911][   T73]      netlink_sendmsg+0x723/0xbe0
[  947.145911][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  947.145911][   T73]      ___sys_sendmsg+0xee/0x170
[  947.145911][   T73]      __sys_sendmsg+0xcd/0x170
[  947.145911][   T73]      do_syscall_64+0xc6/0x1e0
[  947.145911][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  947.145911][   T73] 
[  947.147868][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  947.148144][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  947.148144][   T73]      netdev_get_by_index+0x5e/0x80
[  947.148144][   T73]      fib6_nh_init+0x3d8/0x1580
[  947.148144][   T73]      ip6_route_info_create+0xf18/0x17d0
[  947.148144][   T73]      addrconf_f6i_alloc+0x265/0x560
[  947.148144][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  947.148144][   T73]      addrconf_join_anycast+0x1c0/0x220
[  947.148144][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  947.148144][   T73]      addrconf_dad_completed+0x12b/0xe20
[  947.148144][   T73]      addrconf_dad_begin+0x310/0x670
[  947.148144][   T73]      addrconf_dad_work+0x10b/0xab0
[  947.148144][   T73]      process_one_work+0x84d/0x18a0
[  947.148144][   T73]      worker_thread+0x587/0xd30
[  947.148144][   T73]      kthread+0x28a/0x350
[  947.148144][   T73]      ret_from_fork+0x31/0x70
[  947.148144][   T73]      ret_from_fork_asm+0x1a/0x30
[  947.148144][   T73] 
[  947.150333][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  947.150333][   T73]      netdev_get_by_index+0x5e/0x80
[  947.150333][   T73]      fib6_nh_init+0x3d8/0x1580
[  947.150333][   T73]      ip6_route_info_create+0xf18/0x17d0
[  947.150333][   T73]      ip6_route_add+0x1c/0x140
[  947.150333][   T73]      addrconf_prefix_route+0x2a6/0x430
[  947.150333][   T73]      inet6_addr_add+0x4f8/0xa40
[  947.150333][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  947.150333][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  947.150333][   T73]      netlink_rcv_skb+0x130/0x360
[  947.150333][   T73]      netlink_unicast+0x449/0x710
[  947.150333][   T73]      netlink_sendmsg+0x723/0xbe0
[  947.150333][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  947.150333][   T73]      ___sys_sendmsg+0xee/0x170
[  947.150333][   T73]      __sys_sendmsg+0xcd/0x170
[  947.150333][   T73]      do_syscall_64+0xc6/0x1e0
[  947.150333][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  947.150333][   T73] 
[  947.152548][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  947.152548][   T73]      netdev_get_by_index+0x5e/0x80
[  947.152548][   T73]      fib6_nh_init+0x3d8/0x1580
[  947.152548][   T73]      ip6_route_info_create+0xf18/0x17d0
[  947.152548][   T73]      addrconf_f6i_alloc+0x315/0x560
[  947.152548][   T73]      ipv6_add_addr+0x411/0x2000
[  947.152548][   T73]      inet6_addr_add+0x30e/0xa40
[  947.152548][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  947.152548][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  947.152548][   T73]      netlink_rcv_skb+0x130/0x360
[  947.152548][   T73]      netlink_unicast+0x449/0x710
[  947.152548][   T73]      netlink_sendmsg+0x723/0xbe0
[  947.152548][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  947.152548][   T73]      ___sys_sendmsg+0xee/0x170
[  947.152548][   T73]      __sys_sendmsg+0xcd/0x170
[  947.152548][   T73]      do_syscall_64+0xc6/0x1e0
[  947.152548][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  947.152548][   T73] 
[  947.154834][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  947.154834][   T73]      netdev_get_by_index+0x5e/0x80
[  947.154834][   T73]      fib6_nh_init+0x3d8/0x1580
[  947.154834][   T73]      ip6_route_info_create+0xf18/0x17d0
[  947.154834][   T73]      ip6_route_add+0x1c/0x140
[  947.154834][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  947.154834][   T73]      addrconf_add_dev+0xe2/0x170
[  947.154834][   T73]      inet6_addr_add+0x12f/0xa40
[  947.154834][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  947.154834][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  947.154834][   T73]      netlink_rcv_skb+0x130/0x360
[  947.154834][   T73]      netlink_unicast+0x449/0x710
[  947.154834][   T73]      netlink_sendmsg+0x723/0xbe0
[  947.154834][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  947.154834][   T73]      ___sys_sendmsg+0xee/0x170
[  947.154834][   T73]      __sys_sendmsg+0xcd/0x170
[  947.154834][   T73]      do_syscall_64+0xc6/0x1e0
[  947.154834][   T73] 
[  947.157131][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  947.157131][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  947.157131][   T73]      ipv6_find_idev+0x102/0x170
[  947.157131][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  947.157131][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  947.157131][   T73]      netlink_rcv_skb+0x130/0x360
[  947.157131][   T73]      netlink_unicast+0x449/0x710
[  947.157131][   T73]      netlink_sendmsg+0x723/0xbe0
[  947.157131][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  947.157131][   T73]      ___sys_sendmsg+0xee/0x170
[  947.157131][   T73]      __sys_sendmsg+0xcd/0x170
[  947.157131][   T73]      do_syscall_64+0xc6/0x1e0
[  947.157131][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  947.157131][   T73] 
[  947.158853][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  947.158853][   T73]      neigh_parms_alloc+0x1e5/0x510
[  947.158853][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  947.158853][   T73]      ipv6_find_idev+0x102/0x170
[  947.158853][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  947.158853][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  947.158853][   T73]      netlink_rcv_skb+0x130/0x360
[  947.158853][   T73]      netlink_unicast+0x449/0x710
[  947.158853][   T73]      netlink_sendmsg+0x723/0xbe0
[  947.158853][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  947.158853][   T73]      ___sys_sendmsg+0xee/0x170
[  947.158853][   T73]      __sys_sendmsg+0xcd/0x170
[  947.158853][   T73]      do_syscall_64+0xc6/0x1e0
[  947.158853][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  947.158853][   T73] 
[  957.399768][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  957.400191][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  957.400191][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  957.400191][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  957.400191][   T73]      fib6_nh_init+0xa22/0x1580
[  957.400191][   T73]      ip6_route_info_create+0xf18/0x17d0
[  957.400191][   T73]      ip6_route_add+0x1c/0x140
[  957.400191][   T73]      inet6_rtm_newroute+0x104/0x110
[  957.400191][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  957.400191][   T73]      netlink_rcv_skb+0x130/0x360
[  957.400191][   T73]      netlink_unicast+0x449/0x710
[  957.400191][   T73]      netlink_sendmsg+0x723/0xbe0
[  957.400191][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  957.400191][   T73]      ___sys_sendmsg+0xee/0x170
[  957.400191][   T73]      __sys_sendmsg+0xcd/0x170
[  957.400191][   T73]      do_syscall_64+0xc6/0x1e0
[  957.400191][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  957.400191][   T73] 
[  957.402101][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  957.402101][   T73]      dst_init+0x84/0x4a0
[  957.402101][   T73]      dst_alloc+0x97/0x150
[  957.402101][   T73]      ip6_dst_alloc+0x23/0x90
[  957.402101][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  957.402101][   T73]      ip6_pol_route+0x56f/0x840
[  957.402101][   T73]      fib6_rule_lookup+0x456/0x630
[  957.402101][   T73]      ip6_route_input+0x59c/0xa50
[  957.402101][   T73]      ipv6_rcv+0x397/0x810
[  957.402101][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  957.402101][   T73]      process_backlog+0x101/0x620
[  957.402101][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  957.402101][   T73]      net_rx_action+0x495/0xbe0
[  957.402101][   T73]      __do_softirq+0x1b5/0x7f6
[  957.402101][   T73] 
[  957.403762][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  957.403762][   T73]      netdev_get_by_index+0x5e/0x80
[  957.403762][   T73]      fib6_nh_init+0x3d8/0x1580
[  957.403762][   T73]      ip6_route_info_create+0xf18/0x17d0
[  957.403762][   T73]      ip6_route_add+0x1c/0x140
[  957.403762][   T73]      addrconf_prefix_route+0x2a6/0x430
[  957.403762][   T73]      inet6_addr_add+0x4f8/0xa40
[  957.403762][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  957.403762][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  957.403762][   T73]      netlink_rcv_skb+0x130/0x360
[  957.403762][   T73]      netlink_unicast+0x449/0x710
[  957.403762][   T73]      netlink_sendmsg+0x723/0xbe0
[  957.403762][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  957.403762][   T73]      ___sys_sendmsg+0xee/0x170
[  957.403762][   T73]      __sys_sendmsg+0xcd/0x170
[  957.403762][   T73]      do_syscall_64+0xc6/0x1e0
[  957.403762][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  957.403762][   T73] 
[  957.405772][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  957.405772][   T73]      netdev_get_by_index+0x5e/0x80
[  957.405772][   T73]      fib6_nh_init+0x3d8/0x1580
[  957.405772][   T73]      ip6_route_info_create+0xf18/0x17d0
[  957.405772][   T73]      addrconf_f6i_alloc+0x315/0x560
[  957.405772][   T73]      ipv6_add_addr+0x411/0x2000
[  957.405772][   T73]      inet6_addr_add+0x30e/0xa40
[  957.405772][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  957.405772][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  957.405772][   T73]      netlink_rcv_skb+0x130/0x360
[  957.405772][   T73]      netlink_unicast+0x449/0x710
[  957.405772][   T73]      netlink_sendmsg+0x723/0xbe0
[  957.405772][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  957.405772][   T73]      ___sys_sendmsg+0xee/0x170
[  957.405772][   T73]      __sys_sendmsg+0xcd/0x170
[  957.405772][   T73]      do_syscall_64+0xc6/0x1e0
[  957.405772][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  957.405772][   T73] 
[  957.407787][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  957.407787][   T73]      netdev_get_by_index+0x5e/0x80
[  957.407787][   T73]      fib6_nh_init+0x3d8/0x1580
[  957.407787][   T73]      ip6_route_info_create+0xf18/0x17d0
[  957.407787][   T73]      ip6_route_add+0x1c/0x140
[  957.407787][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  957.407787][   T73]      addrconf_add_dev+0xe2/0x170
[  957.407787][   T73]      inet6_addr_add+0x12f/0xa40
[  957.407787][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  957.407787][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  957.407787][   T73]      netlink_rcv_skb+0x130/0x360
[  957.407787][   T73]      netlink_unicast+0x449/0x710
[  957.407787][   T73]      netlink_sendmsg+0x723/0xbe0
[  957.407787][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  957.407787][   T73]      ___sys_sendmsg+0xee/0x170
[  957.407787][   T73]      __sys_sendmsg+0xcd/0x170
[  957.407787][   T73]      do_syscall_64+0xc6/0x1e0
[  957.407787][   T73] 
[  957.409783][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  957.409783][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  957.409783][   T73]      ipv6_find_idev+0x102/0x170
[  957.409783][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  957.409783][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  957.409783][   T73]      netlink_rcv_skb+0x130/0x360
[  957.409783][   T73]      netlink_unicast+0x449/0x710
[  957.409783][   T73]      netlink_sendmsg+0x723/0xbe0
[  957.409783][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  957.409783][   T73]      ___sys_sendmsg+0xee/0x170
[  957.409783][   T73]      __sys_sendmsg+0xcd/0x170
[  957.409783][   T73]      do_syscall_64+0xc6/0x1e0
[  957.409783][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  957.409783][   T73] 
[  957.411338][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  957.411338][   T73]      neigh_parms_alloc+0x1e5/0x510
[  957.411338][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  957.411338][   T73]      ipv6_find_idev+0x102/0x170
[  957.411338][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  957.411338][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  957.411338][   T73]      netlink_rcv_skb+0x130/0x360
[  957.411338][   T73]      netlink_unicast+0x449/0x710
[  957.411338][   T73]      netlink_sendmsg+0x723/0xbe0
[  957.411338][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  957.411338][   T73]      ___sys_sendmsg+0xee/0x170
[  957.411338][   T73]      __sys_sendmsg+0xcd/0x170
[  957.411338][   T73]      do_syscall_64+0xc6/0x1e0
[  957.411338][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  957.411338][   T73] 
[  957.413060][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  957.413343][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  957.413343][   T73]      netdev_get_by_index+0x5e/0x80
[  957.413343][   T73]      fib6_nh_init+0x3d8/0x1580
[  957.413343][   T73]      ip6_route_info_create+0xf18/0x17d0
[  957.413343][   T73]      addrconf_f6i_alloc+0x265/0x560
[  957.413343][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  957.413343][   T73]      addrconf_join_anycast+0x1c0/0x220
[  957.413343][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  957.413343][   T73]      addrconf_dad_completed+0x12b/0xe20
[  957.413343][   T73]      addrconf_dad_begin+0x310/0x670
[  957.413343][   T73]      addrconf_dad_work+0x10b/0xab0
[  957.413343][   T73]      process_one_work+0x84d/0x18a0
[  957.413343][   T73]      worker_thread+0x587/0xd30
[  957.413343][   T73]      kthread+0x28a/0x350
[  957.413343][   T73]      ret_from_fork+0x31/0x70
[  957.413343][   T73]      ret_from_fork_asm+0x1a/0x30
[  957.413343][   T73] 
[  957.415272][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  957.415272][   T73]      netdev_get_by_index+0x5e/0x80
[  957.415272][   T73]      fib6_nh_init+0x3d8/0x1580
[  957.415272][   T73]      ip6_route_info_create+0xf18/0x17d0
[  957.415272][   T73]      ip6_route_add+0x1c/0x140
[  957.415272][   T73]      addrconf_prefix_route+0x2a6/0x430
[  957.415272][   T73]      inet6_addr_add+0x4f8/0xa40
[  957.415272][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  957.415272][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  957.415272][   T73]      netlink_rcv_skb+0x130/0x360
[  957.415272][   T73]      netlink_unicast+0x449/0x710
[  957.415272][   T73]      netlink_sendmsg+0x723/0xbe0
[  957.415272][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  957.415272][   T73]      ___sys_sendmsg+0xee/0x170
[  957.415272][   T73]      __sys_sendmsg+0xcd/0x170
[  957.415272][   T73]      do_syscall_64+0xc6/0x1e0
[  957.415272][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  957.415272][   T73] 
[  957.417296][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  957.417296][   T73]      netdev_get_by_index+0x5e/0x80
[  957.417296][   T73]      fib6_nh_init+0x3d8/0x1580
[  957.417296][   T73]      ip6_route_info_create+0xf18/0x17d0
[  957.417296][   T73]      addrconf_f6i_alloc+0x315/0x560
[  957.417296][   T73]      ipv6_add_addr+0x411/0x2000
[  957.417296][   T73]      inet6_addr_add+0x30e/0xa40
[  957.417296][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  957.417296][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  957.417296][   T73]      netlink_rcv_skb+0x130/0x360
[  957.417296][   T73]      netlink_unicast+0x449/0x710
[  957.417296][   T73]      netlink_sendmsg+0x723/0xbe0
[  957.417296][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  957.417296][   T73]      ___sys_sendmsg+0xee/0x170
[  957.417296][   T73]      __sys_sendmsg+0xcd/0x170
[  957.417296][   T73]      do_syscall_64+0xc6/0x1e0
[  957.417296][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  957.417296][   T73] 
[  957.419329][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  957.419329][   T73]      netdev_get_by_index+0x5e/0x80
[  957.419329][   T73]      fib6_nh_init+0x3d8/0x1580
[  957.419329][   T73]      ip6_route_info_create+0xf18/0x17d0
[  957.419329][   T73]      ip6_route_add+0x1c/0x140
[  957.419329][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  957.419329][   T73]      addrconf_add_dev+0xe2/0x170
[  957.419329][   T73]      inet6_addr_add+0x12f/0xa40
[  957.419329][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  957.419329][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  957.419329][   T73]      netlink_rcv_skb+0x130/0x360
[  957.419329][   T73]      netlink_unicast+0x449/0x710
[  957.419329][   T73]      netlink_sendmsg+0x723/0xbe0
[  957.419329][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  957.419329][   T73]      ___sys_sendmsg+0xee/0x170
[  957.419329][   T73]      __sys_sendmsg+0xcd/0x170
[  957.419329][   T73]      do_syscall_64+0xc6/0x1e0
[  957.419329][   T73] 
[  957.422059][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  957.422059][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  957.422059][   T73]      ipv6_find_idev+0x102/0x170
[  957.422059][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  957.422059][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  957.422059][   T73]      netlink_rcv_skb+0x130/0x360
[  957.422059][   T73]      netlink_unicast+0x449/0x710
[  957.422059][   T73]      netlink_sendmsg+0x723/0xbe0
[  957.422059][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  957.422059][   T73]      ___sys_sendmsg+0xee/0x170
[  957.422059][   T73]      __sys_sendmsg+0xcd/0x170
[  957.422059][   T73]      do_syscall_64+0xc6/0x1e0
[  957.422059][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  957.422059][   T73] 
[  957.424344][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  957.424344][   T73]      neigh_parms_alloc+0x1e5/0x510
[  957.424344][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  957.424344][   T73]      ipv6_find_idev+0x102/0x170
[  957.424344][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  957.424344][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  957.424344][   T73]      netlink_rcv_skb+0x130/0x360
[  957.424344][   T73]      netlink_unicast+0x449/0x710
[  957.424344][   T73]      netlink_sendmsg+0x723/0xbe0
[  957.424344][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  957.424344][   T73]      ___sys_sendmsg+0xee/0x170
[  957.424344][   T73]      __sys_sendmsg+0xcd/0x170
[  957.424344][   T73]      do_syscall_64+0xc6/0x1e0
[  957.424344][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  957.424344][   T73] 
[  957.426962][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  957.427394][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  957.427394][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  957.427394][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  957.427394][   T73]      fib6_nh_init+0xa22/0x1580
[  957.427394][   T73]      ip6_route_info_create+0xf18/0x17d0
[  957.427394][   T73]      ip6_route_add+0x1c/0x140
[  957.427394][   T73]      inet6_rtm_newroute+0x104/0x110
[  957.427394][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  957.427394][   T73]      netlink_rcv_skb+0x130/0x360
[  957.427394][   T73]      netlink_unicast+0x449/0x710
[  957.427394][   T73]      netlink_sendmsg+0x723/0xbe0
[  957.427394][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  957.427394][   T73]      ___sys_sendmsg+0xee/0x170
[  957.427394][   T73]      __sys_sendmsg+0xcd/0x170
[  957.427394][   T73]      do_syscall_64+0xc6/0x1e0
[  957.427394][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  957.427394][   T73] 
[  957.430644][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  957.430644][   T73]      dst_init+0x84/0x4a0
[  957.430644][   T73]      dst_alloc+0x97/0x150
[  957.430644][   T73]      ip6_dst_alloc+0x23/0x90
[  957.430644][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  957.430644][   T73]      ip6_pol_route+0x56f/0x840
[  957.430644][   T73]      fib6_rule_lookup+0x456/0x630
[  957.430644][   T73]      ip6_route_input+0x59c/0xa50
[  957.430644][   T73]      ipv6_rcv+0x397/0x810
[  957.430644][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  957.430644][   T73]      process_backlog+0x101/0x620
[  957.430644][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  957.430644][   T73]      net_rx_action+0x495/0xbe0
[  957.430644][   T73]      __do_softirq+0x1b5/0x7f6
[  957.430644][   T73] 
[  957.433510][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  957.433510][   T73]      netdev_get_by_index+0x5e/0x80
[  957.433510][   T73]      fib6_nh_init+0x3d8/0x1580
[  957.433510][   T73]      ip6_route_info_create+0xf18/0x17d0
[  957.433510][   T73]      ip6_route_add+0x1c/0x140
[  957.433510][   T73]      addrconf_prefix_route+0x2a6/0x430
[  957.433510][   T73]      inet6_addr_add+0x4f8/0xa40
[  957.433510][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  957.433510][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  957.433510][   T73]      netlink_rcv_skb+0x130/0x360
[  957.433510][   T73]      netlink_unicast+0x449/0x710
[  957.433510][   T73]      netlink_sendmsg+0x723/0xbe0
[  957.433510][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  957.433510][   T73]      ___sys_sendmsg+0xee/0x170
[  957.433510][   T73]      __sys_sendmsg+0xcd/0x170
[  957.433510][   T73]      do_syscall_64+0xc6/0x1e0
[  957.433510][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  957.433510][   T73] 
[  957.436874][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  957.436874][   T73]      netdev_get_by_index+0x5e/0x80
[  957.436874][   T73]      fib6_nh_init+0x3d8/0x1580
[  957.436874][   T73]      ip6_route_info_create+0xf18/0x17d0
[  957.436874][   T73]      addrconf_f6i_alloc+0x315/0x560
[  957.436874][   T73]      ipv6_add_addr+0x411/0x2000
[  957.436874][   T73]      inet6_addr_add+0x30e/0xa40
[  957.436874][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  957.436874][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  957.436874][   T73]      netlink_rcv_skb+0x130/0x360
[  957.436874][   T73]      netlink_unicast+0x449/0x710
[  957.436874][   T73]      netlink_sendmsg+0x723/0xbe0
[  957.436874][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  957.436874][   T73]      ___sys_sendmsg+0xee/0x170
[  957.436874][   T73]      __sys_sendmsg+0xcd/0x170
[  957.436874][   T73]      do_syscall_64+0xc6/0x1e0
[  957.436874][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  957.436874][   T73] 
[  957.440562][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  957.440562][   T73]      netdev_get_by_index+0x5e/0x80
[  957.440562][   T73]      fib6_nh_init+0x3d8/0x1580
[  957.440562][   T73]      ip6_route_info_create+0xf18/0x17d0
[  957.440562][   T73]      ip6_route_add+0x1c/0x140
[  957.440562][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  957.440562][   T73]      addrconf_add_dev+0xe2/0x170
[  957.440562][   T73]      inet6_addr_add+0x12f/0xa40
[  957.440562][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  957.440562][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  957.440562][   T73]      netlink_rcv_skb+0x130/0x360
[  957.440562][   T73]      netlink_unicast+0x449/0x710
[  957.440562][   T73]      netlink_sendmsg+0x723/0xbe0
[  957.440562][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  957.440562][   T73]      ___sys_sendmsg+0xee/0x170
[  957.440562][   T73]      __sys_sendmsg+0xcd/0x170
[  957.440562][   T73]      do_syscall_64+0xc6/0x1e0
[  957.440562][   T73] 
[  957.443934][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  957.443934][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  957.443934][   T73]      ipv6_find_idev+0x102/0x170
[  957.443934][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  957.443934][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  957.443934][   T73]      netlink_rcv_skb+0x130/0x360
[  957.443934][   T73]      netlink_unicast+0x449/0x710
[  957.443934][   T73]      netlink_sendmsg+0x723/0xbe0
[  957.443934][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  957.443934][   T73]      ___sys_sendmsg+0xee/0x170
[  957.443934][   T73]      __sys_sendmsg+0xcd/0x170
[  957.443934][   T73]      do_syscall_64+0xc6/0x1e0
[  957.443934][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  957.443934][   T73] 
[  957.446696][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  957.446696][   T73]      neigh_parms_alloc+0x1e5/0x510
[  957.446696][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  957.446696][   T73]      ipv6_find_idev+0x102/0x170
[  957.446696][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  957.446696][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  957.446696][   T73]      netlink_rcv_skb+0x130/0x360
[  957.446696][   T73]      netlink_unicast+0x449/0x710
[  957.446696][   T73]      netlink_sendmsg+0x723/0xbe0
[  957.446696][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  957.446696][   T73]      ___sys_sendmsg+0xee/0x170
[  957.446696][   T73]      __sys_sendmsg+0xcd/0x170
[  957.446696][   T73]      do_syscall_64+0xc6/0x1e0
[  957.446696][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  957.446696][   T73] 
[  957.449782][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  957.450208][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  957.450208][   T73]      netdev_get_by_index+0x5e/0x80
[  957.450208][   T73]      fib6_nh_init+0x3d8/0x1580
[  957.450208][   T73]      ip6_route_info_create+0xf18/0x17d0
[  957.450208][   T73]      addrconf_f6i_alloc+0x265/0x560
[  957.450208][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  957.450208][   T73]      addrconf_join_anycast+0x1c0/0x220
[  957.450208][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  957.450208][   T73]      addrconf_dad_completed+0x12b/0xe20
[  957.450208][   T73]      addrconf_dad_begin+0x310/0x670
[  957.450208][   T73]      addrconf_dad_work+0x10b/0xab0
[  957.450208][   T73]      process_one_work+0x84d/0x18a0
[  957.450208][   T73]      worker_thread+0x587/0xd30
[  957.450208][   T73]      kthread+0x28a/0x350
[  957.450208][   T73]      ret_from_fork+0x31/0x70
[  957.450208][   T73]      ret_from_fork_asm+0x1a/0x30
[  957.450208][   T73] 
[  957.453667][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  957.453667][   T73]      netdev_get_by_index+0x5e/0x80
[  957.453667][   T73]      fib6_nh_init+0x3d8/0x1580
[  957.453667][   T73]      ip6_route_info_create+0xf18/0x17d0
[  957.453667][   T73]      ip6_route_add+0x1c/0x140
[  957.453667][   T73]      addrconf_prefix_route+0x2a6/0x430
[  957.453667][   T73]      inet6_addr_add+0x4f8/0xa40
[  957.453667][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  957.453667][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  957.453667][   T73]      netlink_rcv_skb+0x130/0x360
[  957.453667][   T73]      netlink_unicast+0x449/0x710
[  957.453667][   T73]      netlink_sendmsg+0x723/0xbe0
[  957.453667][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  957.453667][   T73]      ___sys_sendmsg+0xee/0x170
[  957.453667][   T73]      __sys_sendmsg+0xcd/0x170
[  957.453667][   T73]      do_syscall_64+0xc6/0x1e0
[  957.453667][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  957.453667][   T73] 
[  957.457289][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  957.457289][   T73]      netdev_get_by_index+0x5e/0x80
[  957.457289][   T73]      fib6_nh_init+0x3d8/0x1580
[  957.457289][   T73]      ip6_route_info_create+0xf18/0x17d0
[  957.457289][   T73]      addrconf_f6i_alloc+0x315/0x560
[  957.457289][   T73]      ipv6_add_addr+0x411/0x2000
[  957.457289][   T73]      inet6_addr_add+0x30e/0xa40
[  957.457289][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  957.457289][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  957.457289][   T73]      netlink_rcv_skb+0x130/0x360
[  957.457289][   T73]      netlink_unicast+0x449/0x710
[  957.457289][   T73]      netlink_sendmsg+0x723/0xbe0
[  957.457289][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  957.457289][   T73]      ___sys_sendmsg+0xee/0x170
[  957.457289][   T73]      __sys_sendmsg+0xcd/0x170
[  957.457289][   T73]      do_syscall_64+0xc6/0x1e0
[  957.457289][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  957.457289][   T73] 
[  957.460775][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  957.460775][   T73]      netdev_get_by_index+0x5e/0x80
[  957.460775][   T73]      fib6_nh_init+0x3d8/0x1580
[  957.460775][   T73]      ip6_route_info_create+0xf18/0x17d0
[  957.460775][   T73]      ip6_route_add+0x1c/0x140
[  957.460775][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  957.460775][   T73]      addrconf_add_dev+0xe2/0x170
[  957.460775][   T73]      inet6_addr_add+0x12f/0xa40
[  957.460775][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  957.460775][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  957.460775][   T73]      netlink_rcv_skb+0x130/0x360
[  957.460775][   T73]      netlink_unicast+0x449/0x710
[  957.460775][   T73]      netlink_sendmsg+0x723/0xbe0
[  957.460775][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  957.460775][   T73]      ___sys_sendmsg+0xee/0x170
[  957.460775][   T73]      __sys_sendmsg+0xcd/0x170
[  957.460775][   T73]      do_syscall_64+0xc6/0x1e0
[  957.460775][   T73] 
[  957.464212][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  957.464212][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  957.464212][   T73]      ipv6_find_idev+0x102/0x170
[  957.464212][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  957.464212][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  957.464212][   T73]      netlink_rcv_skb+0x130/0x360
[  957.464212][   T73]      netlink_unicast+0x449/0x710
[  957.464212][   T73]      netlink_sendmsg+0x723/0xbe0
[  957.464212][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  957.464212][   T73]      ___sys_sendmsg+0xee/0x170
[  957.464212][   T73]      __sys_sendmsg+0xcd/0x170
[  957.464212][   T73]      do_syscall_64+0xc6/0x1e0
[  957.464212][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  957.464212][   T73] 
[  957.466178][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  957.466178][   T73]      neigh_parms_alloc+0x1e5/0x510
[  957.466178][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  957.466178][   T73]      ipv6_find_idev+0x102/0x170
[  957.466178][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  957.466178][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  957.466178][   T73]      netlink_rcv_skb+0x130/0x360
[  957.466178][   T73]      netlink_unicast+0x449/0x710
[  957.466178][   T73]      netlink_sendmsg+0x723/0xbe0
[  957.466178][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  957.466178][   T73]      ___sys_sendmsg+0xee/0x170
[  957.466178][   T73]      __sys_sendmsg+0xcd/0x170
[  957.466178][   T73]      do_syscall_64+0xc6/0x1e0
[  957.466178][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  957.466178][   T73] 
[  967.711743][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  967.712331][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  967.712331][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  967.712331][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  967.712331][   T73]      fib6_nh_init+0xa22/0x1580
[  967.712331][   T73]      ip6_route_info_create+0xf18/0x17d0
[  967.712331][   T73]      ip6_route_add+0x1c/0x140
[  967.712331][   T73]      inet6_rtm_newroute+0x104/0x110
[  967.712331][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  967.712331][   T73]      netlink_rcv_skb+0x130/0x360
[  967.712331][   T73]      netlink_unicast+0x449/0x710
[  967.712331][   T73]      netlink_sendmsg+0x723/0xbe0
[  967.712331][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  967.712331][   T73]      ___sys_sendmsg+0xee/0x170
[  967.712331][   T73]      __sys_sendmsg+0xcd/0x170
[  967.712331][   T73]      do_syscall_64+0xc6/0x1e0
[  967.712331][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  967.712331][   T73] 
[  967.715371][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  967.715371][   T73]      dst_init+0x84/0x4a0
[  967.715371][   T73]      dst_alloc+0x97/0x150
[  967.715371][   T73]      ip6_dst_alloc+0x23/0x90
[  967.715371][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  967.715371][   T73]      ip6_pol_route+0x56f/0x840
[  967.715371][   T73]      fib6_rule_lookup+0x456/0x630
[  967.715371][   T73]      ip6_route_input+0x59c/0xa50
[  967.715371][   T73]      ipv6_rcv+0x397/0x810
[  967.715371][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  967.715371][   T73]      process_backlog+0x101/0x620
[  967.715371][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  967.715371][   T73]      net_rx_action+0x495/0xbe0
[  967.715371][   T73]      __do_softirq+0x1b5/0x7f6
[  967.715371][   T73] 
[  967.718124][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  967.718124][   T73]      netdev_get_by_index+0x5e/0x80
[  967.718124][   T73]      fib6_nh_init+0x3d8/0x1580
[  967.718124][   T73]      ip6_route_info_create+0xf18/0x17d0
[  967.718124][   T73]      ip6_route_add+0x1c/0x140
[  967.718124][   T73]      addrconf_prefix_route+0x2a6/0x430
[  967.718124][   T73]      inet6_addr_add+0x4f8/0xa40
[  967.718124][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  967.718124][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  967.718124][   T73]      netlink_rcv_skb+0x130/0x360
[  967.718124][   T73]      netlink_unicast+0x449/0x710
[  967.718124][   T73]      netlink_sendmsg+0x723/0xbe0
[  967.718124][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  967.718124][   T73]      ___sys_sendmsg+0xee/0x170
[  967.718124][   T73]      __sys_sendmsg+0xcd/0x170
[  967.718124][   T73]      do_syscall_64+0xc6/0x1e0
[  967.718124][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  967.718124][   T73] 
[  967.721456][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  967.721456][   T73]      netdev_get_by_index+0x5e/0x80
[  967.721456][   T73]      fib6_nh_init+0x3d8/0x1580
[  967.721456][   T73]      ip6_route_info_create+0xf18/0x17d0
[  967.721456][   T73]      addrconf_f6i_alloc+0x315/0x560
[  967.721456][   T73]      ipv6_add_addr+0x411/0x2000
[  967.721456][   T73]      inet6_addr_add+0x30e/0xa40
[  967.721456][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  967.721456][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  967.721456][   T73]      netlink_rcv_skb+0x130/0x360
[  967.721456][   T73]      netlink_unicast+0x449/0x710
[  967.721456][   T73]      netlink_sendmsg+0x723/0xbe0
[  967.721456][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  967.721456][   T73]      ___sys_sendmsg+0xee/0x170
[  967.721456][   T73]      __sys_sendmsg+0xcd/0x170
[  967.721456][   T73]      do_syscall_64+0xc6/0x1e0
[  967.721456][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  967.721456][   T73] 
[  967.724768][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  967.724768][   T73]      netdev_get_by_index+0x5e/0x80
[  967.724768][   T73]      fib6_nh_init+0x3d8/0x1580
[  967.724768][   T73]      ip6_route_info_create+0xf18/0x17d0
[  967.724768][   T73]      ip6_route_add+0x1c/0x140
[  967.724768][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  967.724768][   T73]      addrconf_add_dev+0xe2/0x170
[  967.724768][   T73]      inet6_addr_add+0x12f/0xa40
[  967.724768][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  967.724768][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  967.724768][   T73]      netlink_rcv_skb+0x130/0x360
[  967.724768][   T73]      netlink_unicast+0x449/0x710
[  967.724768][   T73]      netlink_sendmsg+0x723/0xbe0
[  967.724768][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  967.724768][   T73]      ___sys_sendmsg+0xee/0x170
[  967.724768][   T73]      __sys_sendmsg+0xcd/0x170
[  967.724768][   T73]      do_syscall_64+0xc6/0x1e0
[  967.724768][   T73] 
[  967.728010][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  967.728010][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  967.728010][   T73]      ipv6_find_idev+0x102/0x170
[  967.728010][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  967.728010][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  967.728010][   T73]      netlink_rcv_skb+0x130/0x360
[  967.728010][   T73]      netlink_unicast+0x449/0x710
[  967.728010][   T73]      netlink_sendmsg+0x723/0xbe0
[  967.728010][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  967.728010][   T73]      ___sys_sendmsg+0xee/0x170
[  967.728010][   T73]      __sys_sendmsg+0xcd/0x170
[  967.728010][   T73]      do_syscall_64+0xc6/0x1e0
[  967.728010][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  967.728010][   T73] 
[  967.730562][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  967.730562][   T73]      neigh_parms_alloc+0x1e5/0x510
[  967.730562][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  967.730562][   T73]      ipv6_find_idev+0x102/0x170
[  967.730562][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  967.730562][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  967.730562][   T73]      netlink_rcv_skb+0x130/0x360
[  967.730562][   T73]      netlink_unicast+0x449/0x710
[  967.730562][   T73]      netlink_sendmsg+0x723/0xbe0
[  967.730562][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  967.730562][   T73]      ___sys_sendmsg+0xee/0x170
[  967.730562][   T73]      __sys_sendmsg+0xcd/0x170
[  967.730562][   T73]      do_syscall_64+0xc6/0x1e0
[  967.730562][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  967.730562][   T73] 
[  967.733384][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  967.733873][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  967.733873][   T73]      netdev_get_by_index+0x5e/0x80
[  967.733873][   T73]      fib6_nh_init+0x3d8/0x1580
[  967.733873][   T73]      ip6_route_info_create+0xf18/0x17d0
[  967.733873][   T73]      addrconf_f6i_alloc+0x265/0x560
[  967.733873][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  967.733873][   T73]      addrconf_join_anycast+0x1c0/0x220
[  967.733873][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  967.733873][   T73]      addrconf_dad_completed+0x12b/0xe20
[  967.733873][   T73]      addrconf_dad_begin+0x310/0x670
[  967.733873][   T73]      addrconf_dad_work+0x10b/0xab0
[  967.733873][   T73]      process_one_work+0x84d/0x18a0
[  967.733873][   T73]      worker_thread+0x587/0xd30
[  967.733873][   T73]      kthread+0x28a/0x350
[  967.733873][   T73]      ret_from_fork+0x31/0x70
[  967.733873][   T73]      ret_from_fork_asm+0x1a/0x30
[  967.733873][   T73] 
[  967.736935][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  967.736935][   T73]      netdev_get_by_index+0x5e/0x80
[  967.736935][   T73]      fib6_nh_init+0x3d8/0x1580
[  967.736935][   T73]      ip6_route_info_create+0xf18/0x17d0
[  967.736935][   T73]      ip6_route_add+0x1c/0x140
[  967.736935][   T73]      addrconf_prefix_route+0x2a6/0x430
[  967.736935][   T73]      inet6_addr_add+0x4f8/0xa40
[  967.736935][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  967.736935][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  967.736935][   T73]      netlink_rcv_skb+0x130/0x360
[  967.736935][   T73]      netlink_unicast+0x449/0x710
[  967.736935][   T73]      netlink_sendmsg+0x723/0xbe0
[  967.736935][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  967.736935][   T73]      ___sys_sendmsg+0xee/0x170
[  967.736935][   T73]      __sys_sendmsg+0xcd/0x170
[  967.736935][   T73]      do_syscall_64+0xc6/0x1e0
[  967.736935][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  967.736935][   T73] 
[  967.740140][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  967.740140][   T73]      netdev_get_by_index+0x5e/0x80
[  967.740140][   T73]      fib6_nh_init+0x3d8/0x1580
[  967.740140][   T73]      ip6_route_info_create+0xf18/0x17d0
[  967.740140][   T73]      addrconf_f6i_alloc+0x315/0x560
[  967.740140][   T73]      ipv6_add_addr+0x411/0x2000
[  967.740140][   T73]      inet6_addr_add+0x30e/0xa40
[  967.740140][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  967.740140][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  967.740140][   T73]      netlink_rcv_skb+0x130/0x360
[  967.740140][   T73]      netlink_unicast+0x449/0x710
[  967.740140][   T73]      netlink_sendmsg+0x723/0xbe0
[  967.740140][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  967.740140][   T73]      ___sys_sendmsg+0xee/0x170
[  967.740140][   T73]      __sys_sendmsg+0xcd/0x170
[  967.740140][   T73]      do_syscall_64+0xc6/0x1e0
[  967.740140][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  967.740140][   T73] 
[  967.743392][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  967.743392][   T73]      netdev_get_by_index+0x5e/0x80
[  967.743392][   T73]      fib6_nh_init+0x3d8/0x1580
[  967.743392][   T73]      ip6_route_info_create+0xf18/0x17d0
[  967.743392][   T73]      ip6_route_add+0x1c/0x140
[  967.743392][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  967.743392][   T73]      addrconf_add_dev+0xe2/0x170
[  967.743392][   T73]      inet6_addr_add+0x12f/0xa40
[  967.743392][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  967.743392][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  967.743392][   T73]      netlink_rcv_skb+0x130/0x360
[  967.743392][   T73]      netlink_unicast+0x449/0x710
[  967.743392][   T73]      netlink_sendmsg+0x723/0xbe0
[  967.743392][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  967.743392][   T73]      ___sys_sendmsg+0xee/0x170
[  967.743392][   T73]      __sys_sendmsg+0xcd/0x170
[  967.743392][   T73]      do_syscall_64+0xc6/0x1e0
[  967.743392][   T73] 
[  967.746671][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  967.746671][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  967.746671][   T73]      ipv6_find_idev+0x102/0x170
[  967.746671][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  967.746671][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  967.746671][   T73]      netlink_rcv_skb+0x130/0x360
[  967.746671][   T73]      netlink_unicast+0x449/0x710
[  967.746671][   T73]      netlink_sendmsg+0x723/0xbe0
[  967.746671][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  967.746671][   T73]      ___sys_sendmsg+0xee/0x170
[  967.746671][   T73]      __sys_sendmsg+0xcd/0x170
[  967.746671][   T73]      do_syscall_64+0xc6/0x1e0
[  967.746671][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  967.746671][   T73] 
[  967.749229][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  967.749229][   T73]      neigh_parms_alloc+0x1e5/0x510
[  967.749229][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  967.749229][   T73]      ipv6_find_idev+0x102/0x170
[  967.749229][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  967.749229][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  967.749229][   T73]      netlink_rcv_skb+0x130/0x360
[  967.749229][   T73]      netlink_unicast+0x449/0x710
[  967.749229][   T73]      netlink_sendmsg+0x723/0xbe0
[  967.749229][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  967.749229][   T73]      ___sys_sendmsg+0xee/0x170
[  967.749229][   T73]      __sys_sendmsg+0xcd/0x170
[  967.749229][   T73]      do_syscall_64+0xc6/0x1e0
[  967.749229][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  967.749229][   T73] 
[  967.752056][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  967.752510][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  967.752510][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  967.752510][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  967.752510][   T73]      fib6_nh_init+0xa22/0x1580
[  967.752510][   T73]      ip6_route_info_create+0xf18/0x17d0
[  967.752510][   T73]      ip6_route_add+0x1c/0x140
[  967.752510][   T73]      inet6_rtm_newroute+0x104/0x110
[  967.752510][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  967.752510][   T73]      netlink_rcv_skb+0x130/0x360
[  967.752510][   T73]      netlink_unicast+0x449/0x710
[  967.752510][   T73]      netlink_sendmsg+0x723/0xbe0
[  967.752510][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  967.752510][   T73]      ___sys_sendmsg+0xee/0x170
[  967.752510][   T73]      __sys_sendmsg+0xcd/0x170
[  967.752510][   T73]      do_syscall_64+0xc6/0x1e0
[  967.752510][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  967.752510][   T73] 
[  967.755949][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  967.755949][   T73]      dst_init+0x84/0x4a0
[  967.755949][   T73]      dst_alloc+0x97/0x150
[  967.755949][   T73]      ip6_dst_alloc+0x23/0x90
[  967.755949][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  967.755949][   T73]      ip6_pol_route+0x56f/0x840
[  967.755949][   T73]      fib6_rule_lookup+0x456/0x630
[  967.755949][   T73]      ip6_route_input+0x59c/0xa50
[  967.755949][   T73]      ipv6_rcv+0x397/0x810
[  967.755949][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  967.755949][   T73]      process_backlog+0x101/0x620
[  967.755949][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  967.755949][   T73]      net_rx_action+0x495/0xbe0
[  967.755949][   T73]      __do_softirq+0x1b5/0x7f6
[  967.755949][   T73] 
[  967.759115][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  967.759115][   T73]      netdev_get_by_index+0x5e/0x80
[  967.759115][   T73]      fib6_nh_init+0x3d8/0x1580
[  967.759115][   T73]      ip6_route_info_create+0xf18/0x17d0
[  967.759115][   T73]      ip6_route_add+0x1c/0x140
[  967.759115][   T73]      addrconf_prefix_route+0x2a6/0x430
[  967.759115][   T73]      inet6_addr_add+0x4f8/0xa40
[  967.759115][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  967.759115][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  967.759115][   T73]      netlink_rcv_skb+0x130/0x360
[  967.759115][   T73]      netlink_unicast+0x449/0x710
[  967.759115][   T73]      netlink_sendmsg+0x723/0xbe0
[  967.759115][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  967.759115][   T73]      ___sys_sendmsg+0xee/0x170
[  967.759115][   T73]      __sys_sendmsg+0xcd/0x170
[  967.759115][   T73]      do_syscall_64+0xc6/0x1e0
[  967.759115][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  967.759115][   T73] 
[  967.762785][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  967.762785][   T73]      netdev_get_by_index+0x5e/0x80
[  967.762785][   T73]      fib6_nh_init+0x3d8/0x1580
[  967.762785][   T73]      ip6_route_info_create+0xf18/0x17d0
[  967.762785][   T73]      addrconf_f6i_alloc+0x315/0x560
[  967.762785][   T73]      ipv6_add_addr+0x411/0x2000
[  967.762785][   T73]      inet6_addr_add+0x30e/0xa40
[  967.762785][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  967.762785][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  967.762785][   T73]      netlink_rcv_skb+0x130/0x360
[  967.762785][   T73]      netlink_unicast+0x449/0x710
[  967.762785][   T73]      netlink_sendmsg+0x723/0xbe0
[  967.762785][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  967.762785][   T73]      ___sys_sendmsg+0xee/0x170
[  967.762785][   T73]      __sys_sendmsg+0xcd/0x170
[  967.762785][   T73]      do_syscall_64+0xc6/0x1e0
[  967.762785][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  967.762785][   T73] 
[  967.766374][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  967.766374][   T73]      netdev_get_by_index+0x5e/0x80
[  967.766374][   T73]      fib6_nh_init+0x3d8/0x1580
[  967.766374][   T73]      ip6_route_info_create+0xf18/0x17d0
[  967.766374][   T73]      ip6_route_add+0x1c/0x140
[  967.766374][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  967.766374][   T73]      addrconf_add_dev+0xe2/0x170
[  967.766374][   T73]      inet6_addr_add+0x12f/0xa40
[  967.766374][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  967.766374][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  967.766374][   T73]      netlink_rcv_skb+0x130/0x360
[  967.766374][   T73]      netlink_unicast+0x449/0x710
[  967.766374][   T73]      netlink_sendmsg+0x723/0xbe0
[  967.766374][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  967.766374][   T73]      ___sys_sendmsg+0xee/0x170
[  967.766374][   T73]      __sys_sendmsg+0xcd/0x170
[  967.766374][   T73]      do_syscall_64+0xc6/0x1e0
[  967.766374][   T73] 
[  967.769835][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  967.769835][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  967.769835][   T73]      ipv6_find_idev+0x102/0x170
[  967.769835][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  967.769835][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  967.769835][   T73]      netlink_rcv_skb+0x130/0x360
[  967.769835][   T73]      netlink_unicast+0x449/0x710
[  967.769835][   T73]      netlink_sendmsg+0x723/0xbe0
[  967.769835][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  967.769835][   T73]      ___sys_sendmsg+0xee/0x170
[  967.769835][   T73]      __sys_sendmsg+0xcd/0x170
[  967.769835][   T73]      do_syscall_64+0xc6/0x1e0
[  967.769835][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  967.769835][   T73] 
[  967.772719][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  967.772719][   T73]      neigh_parms_alloc+0x1e5/0x510
[  967.772719][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  967.772719][   T73]      ipv6_find_idev+0x102/0x170
[  967.772719][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  967.772719][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  967.772719][   T73]      netlink_rcv_skb+0x130/0x360
[  967.772719][   T73]      netlink_unicast+0x449/0x710
[  967.772719][   T73]      netlink_sendmsg+0x723/0xbe0
[  967.772719][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  967.772719][   T73]      ___sys_sendmsg+0xee/0x170
[  967.772719][   T73]      __sys_sendmsg+0xcd/0x170
[  967.772719][   T73]      do_syscall_64+0xc6/0x1e0
[  967.772719][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  967.772719][   T73] 
[  967.775801][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  967.776241][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  967.776241][   T73]      netdev_get_by_index+0x5e/0x80
[  967.776241][   T73]      fib6_nh_init+0x3d8/0x1580
[  967.776241][   T73]      ip6_route_info_create+0xf18/0x17d0
[  967.776241][   T73]      addrconf_f6i_alloc+0x265/0x560
[  967.776241][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  967.776241][   T73]      addrconf_join_anycast+0x1c0/0x220
[  967.776241][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  967.776241][   T73]      addrconf_dad_completed+0x12b/0xe20
[  967.776241][   T73]      addrconf_dad_begin+0x310/0x670
[  967.776241][   T73]      addrconf_dad_work+0x10b/0xab0
[  967.776241][   T73]      process_one_work+0x84d/0x18a0
[  967.776241][   T73]      worker_thread+0x587/0xd30
[  967.776241][   T73]      kthread+0x28a/0x350
[  967.776241][   T73]      ret_from_fork+0x31/0x70
[  967.776241][   T73]      ret_from_fork_asm+0x1a/0x30
[  967.776241][   T73] 
[  967.779688][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  967.779688][   T73]      netdev_get_by_index+0x5e/0x80
[  967.779688][   T73]      fib6_nh_init+0x3d8/0x1580
[  967.779688][   T73]      ip6_route_info_create+0xf18/0x17d0
[  967.779688][   T73]      ip6_route_add+0x1c/0x140
[  967.779688][   T73]      addrconf_prefix_route+0x2a6/0x430
[  967.779688][   T73]      inet6_addr_add+0x4f8/0xa40
[  967.779688][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  967.779688][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  967.779688][   T73]      netlink_rcv_skb+0x130/0x360
[  967.779688][   T73]      netlink_unicast+0x449/0x710
[  967.779688][   T73]      netlink_sendmsg+0x723/0xbe0
[  967.779688][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  967.779688][   T73]      ___sys_sendmsg+0xee/0x170
[  967.779688][   T73]      __sys_sendmsg+0xcd/0x170
[  967.779688][   T73]      do_syscall_64+0xc6/0x1e0
[  967.779688][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  967.779688][   T73] 
[  967.783185][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  967.783185][   T73]      netdev_get_by_index+0x5e/0x80
[  967.783185][   T73]      fib6_nh_init+0x3d8/0x1580
[  967.783185][   T73]      ip6_route_info_create+0xf18/0x17d0
[  967.783185][   T73]      addrconf_f6i_alloc+0x315/0x560
[  967.783185][   T73]      ipv6_add_addr+0x411/0x2000
[  967.783185][   T73]      inet6_addr_add+0x30e/0xa40
[  967.783185][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  967.783185][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  967.783185][   T73]      netlink_rcv_skb+0x130/0x360
[  967.783185][   T73]      netlink_unicast+0x449/0x710
[  967.783185][   T73]      netlink_sendmsg+0x723/0xbe0
[  967.783185][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  967.783185][   T73]      ___sys_sendmsg+0xee/0x170
[  967.783185][   T73]      __sys_sendmsg+0xcd/0x170
[  967.783185][   T73]      do_syscall_64+0xc6/0x1e0
[  967.783185][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  967.783185][   T73] 
[  967.786767][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  967.786767][   T73]      netdev_get_by_index+0x5e/0x80
[  967.786767][   T73]      fib6_nh_init+0x3d8/0x1580
[  967.786767][   T73]      ip6_route_info_create+0xf18/0x17d0
[  967.786767][   T73]      ip6_route_add+0x1c/0x140
[  967.786767][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  967.786767][   T73]      addrconf_add_dev+0xe2/0x170
[  967.786767][   T73]      inet6_addr_add+0x12f/0xa40
[  967.786767][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  967.786767][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  967.786767][   T73]      netlink_rcv_skb+0x130/0x360
[  967.786767][   T73]      netlink_unicast+0x449/0x710
[  967.786767][   T73]      netlink_sendmsg+0x723/0xbe0
[  967.786767][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  967.786767][   T73]      ___sys_sendmsg+0xee/0x170
[  967.786767][   T73]      __sys_sendmsg+0xcd/0x170
[  967.786767][   T73]      do_syscall_64+0xc6/0x1e0
[  967.786767][   T73] 
[  967.790369][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  967.790369][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  967.790369][   T73]      ipv6_find_idev+0x102/0x170
[  967.790369][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  967.790369][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  967.790369][   T73]      netlink_rcv_skb+0x130/0x360
[  967.790369][   T73]      netlink_unicast+0x449/0x710
[  967.790369][   T73]      netlink_sendmsg+0x723/0xbe0
[  967.790369][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  967.790369][   T73]      ___sys_sendmsg+0xee/0x170
[  967.790369][   T73]      __sys_sendmsg+0xcd/0x170
[  967.790369][   T73]      do_syscall_64+0xc6/0x1e0
[  967.790369][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  967.790369][   T73] 
[  967.793021][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  967.793021][   T73]      neigh_parms_alloc+0x1e5/0x510
[  967.793021][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  967.793021][   T73]      ipv6_find_idev+0x102/0x170
[  967.793021][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  967.793021][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  967.793021][   T73]      netlink_rcv_skb+0x130/0x360
[  967.793021][   T73]      netlink_unicast+0x449/0x710
[  967.793021][   T73]      netlink_sendmsg+0x723/0xbe0
[  967.793021][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  967.793021][   T73]      ___sys_sendmsg+0xee/0x170
[  967.793021][   T73]      __sys_sendmsg+0xcd/0x170
[  967.793021][   T73]      do_syscall_64+0xc6/0x1e0
[  967.793021][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  967.793021][   T73] 
[  978.031774][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  978.032335][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  978.032335][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  978.032335][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  978.032335][   T73]      fib6_nh_init+0xa22/0x1580
[  978.032335][   T73]      ip6_route_info_create+0xf18/0x17d0
[  978.032335][   T73]      ip6_route_add+0x1c/0x140
[  978.032335][   T73]      inet6_rtm_newroute+0x104/0x110
[  978.032335][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  978.032335][   T73]      netlink_rcv_skb+0x130/0x360
[  978.032335][   T73]      netlink_unicast+0x449/0x710
[  978.032335][   T73]      netlink_sendmsg+0x723/0xbe0
[  978.032335][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  978.032335][   T73]      ___sys_sendmsg+0xee/0x170
[  978.032335][   T73]      __sys_sendmsg+0xcd/0x170
[  978.032335][   T73]      do_syscall_64+0xc6/0x1e0
[  978.032335][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  978.032335][   T73] 
[  978.035167][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  978.035167][   T73]      dst_init+0x84/0x4a0
[  978.035167][   T73]      dst_alloc+0x97/0x150
[  978.035167][   T73]      ip6_dst_alloc+0x23/0x90
[  978.035167][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  978.035167][   T73]      ip6_pol_route+0x56f/0x840
[  978.035167][   T73]      fib6_rule_lookup+0x456/0x630
[  978.035167][   T73]      ip6_route_input+0x59c/0xa50
[  978.035167][   T73]      ipv6_rcv+0x397/0x810
[  978.035167][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  978.035167][   T73]      process_backlog+0x101/0x620
[  978.035167][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  978.035167][   T73]      net_rx_action+0x495/0xbe0
[  978.035167][   T73]      __do_softirq+0x1b5/0x7f6
[  978.035167][   T73] 
[  978.037601][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  978.037601][   T73]      netdev_get_by_index+0x5e/0x80
[  978.037601][   T73]      fib6_nh_init+0x3d8/0x1580
[  978.037601][   T73]      ip6_route_info_create+0xf18/0x17d0
[  978.037601][   T73]      ip6_route_add+0x1c/0x140
[  978.037601][   T73]      addrconf_prefix_route+0x2a6/0x430
[  978.037601][   T73]      inet6_addr_add+0x4f8/0xa40
[  978.037601][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  978.037601][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  978.037601][   T73]      netlink_rcv_skb+0x130/0x360
[  978.037601][   T73]      netlink_unicast+0x449/0x710
[  978.037601][   T73]      netlink_sendmsg+0x723/0xbe0
[  978.037601][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  978.037601][   T73]      ___sys_sendmsg+0xee/0x170
[  978.037601][   T73]      __sys_sendmsg+0xcd/0x170
[  978.037601][   T73]      do_syscall_64+0xc6/0x1e0
[  978.037601][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  978.037601][   T73] 
[  978.040763][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  978.040763][   T73]      netdev_get_by_index+0x5e/0x80
[  978.040763][   T73]      fib6_nh_init+0x3d8/0x1580
[  978.040763][   T73]      ip6_route_info_create+0xf18/0x17d0
[  978.040763][   T73]      addrconf_f6i_alloc+0x315/0x560
[  978.040763][   T73]      ipv6_add_addr+0x411/0x2000
[  978.040763][   T73]      inet6_addr_add+0x30e/0xa40
[  978.040763][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  978.040763][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  978.040763][   T73]      netlink_rcv_skb+0x130/0x360
[  978.040763][   T73]      netlink_unicast+0x449/0x710
[  978.040763][   T73]      netlink_sendmsg+0x723/0xbe0
[  978.040763][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  978.040763][   T73]      ___sys_sendmsg+0xee/0x170
[  978.040763][   T73]      __sys_sendmsg+0xcd/0x170
[  978.040763][   T73]      do_syscall_64+0xc6/0x1e0
[  978.040763][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  978.040763][   T73] 
[  978.043914][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  978.043914][   T73]      netdev_get_by_index+0x5e/0x80
[  978.043914][   T73]      fib6_nh_init+0x3d8/0x1580
[  978.043914][   T73]      ip6_route_info_create+0xf18/0x17d0
[  978.043914][   T73]      ip6_route_add+0x1c/0x140
[  978.043914][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  978.043914][   T73]      addrconf_add_dev+0xe2/0x170
[  978.043914][   T73]      inet6_addr_add+0x12f/0xa40
[  978.043914][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  978.043914][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  978.043914][   T73]      netlink_rcv_skb+0x130/0x360
[  978.043914][   T73]      netlink_unicast+0x449/0x710
[  978.043914][   T73]      netlink_sendmsg+0x723/0xbe0
[  978.043914][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  978.043914][   T73]      ___sys_sendmsg+0xee/0x170
[  978.043914][   T73]      __sys_sendmsg+0xcd/0x170
[  978.043914][   T73]      do_syscall_64+0xc6/0x1e0
[  978.043914][   T73] 
[  978.047005][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  978.047005][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  978.047005][   T73]      ipv6_find_idev+0x102/0x170
[  978.047005][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  978.047005][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  978.047005][   T73]      netlink_rcv_skb+0x130/0x360
[  978.047005][   T73]      netlink_unicast+0x449/0x710
[  978.047005][   T73]      netlink_sendmsg+0x723/0xbe0
[  978.047005][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  978.047005][   T73]      ___sys_sendmsg+0xee/0x170
[  978.047005][   T73]      __sys_sendmsg+0xcd/0x170
[  978.047005][   T73]      do_syscall_64+0xc6/0x1e0
[  978.047005][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  978.047005][   T73] 
[  978.049435][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  978.049435][   T73]      neigh_parms_alloc+0x1e5/0x510
[  978.049435][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  978.049435][   T73]      ipv6_find_idev+0x102/0x170
[  978.049435][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  978.049435][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  978.049435][   T73]      netlink_rcv_skb+0x130/0x360
[  978.049435][   T73]      netlink_unicast+0x449/0x710
[  978.049435][   T73]      netlink_sendmsg+0x723/0xbe0
[  978.049435][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  978.049435][   T73]      ___sys_sendmsg+0xee/0x170
[  978.049435][   T73]      __sys_sendmsg+0xcd/0x170
[  978.049435][   T73]      do_syscall_64+0xc6/0x1e0
[  978.049435][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  978.049435][   T73] 
[  978.052185][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  978.052617][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  978.052617][   T73]      netdev_get_by_index+0x5e/0x80
[  978.052617][   T73]      fib6_nh_init+0x3d8/0x1580
[  978.052617][   T73]      ip6_route_info_create+0xf18/0x17d0
[  978.052617][   T73]      addrconf_f6i_alloc+0x265/0x560
[  978.052617][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  978.052617][   T73]      addrconf_join_anycast+0x1c0/0x220
[  978.052617][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  978.052617][   T73]      addrconf_dad_completed+0x12b/0xe20
[  978.052617][   T73]      addrconf_dad_begin+0x310/0x670
[  978.052617][   T73]      addrconf_dad_work+0x10b/0xab0
[  978.052617][   T73]      process_one_work+0x84d/0x18a0
[  978.052617][   T73]      worker_thread+0x587/0xd30
[  978.052617][   T73]      kthread+0x28a/0x350
[  978.052617][   T73]      ret_from_fork+0x31/0x70
[  978.052617][   T73]      ret_from_fork_asm+0x1a/0x30
[  978.052617][   T73] 
[  978.055609][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  978.055609][   T73]      netdev_get_by_index+0x5e/0x80
[  978.055609][   T73]      fib6_nh_init+0x3d8/0x1580
[  978.055609][   T73]      ip6_route_info_create+0xf18/0x17d0
[  978.055609][   T73]      ip6_route_add+0x1c/0x140
[  978.055609][   T73]      addrconf_prefix_route+0x2a6/0x430
[  978.055609][   T73]      inet6_addr_add+0x4f8/0xa40
[  978.055609][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  978.055609][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  978.055609][   T73]      netlink_rcv_skb+0x130/0x360
[  978.055609][   T73]      netlink_unicast+0x449/0x710
[  978.055609][   T73]      netlink_sendmsg+0x723/0xbe0
[  978.055609][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  978.055609][   T73]      ___sys_sendmsg+0xee/0x170
[  978.055609][   T73]      __sys_sendmsg+0xcd/0x170
[  978.055609][   T73]      do_syscall_64+0xc6/0x1e0
[  978.055609][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  978.055609][   T73] 
[  978.058747][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  978.058747][   T73]      netdev_get_by_index+0x5e/0x80
[  978.058747][   T73]      fib6_nh_init+0x3d8/0x1580
[  978.058747][   T73]      ip6_route_info_create+0xf18/0x17d0
[  978.058747][   T73]      addrconf_f6i_alloc+0x315/0x560
[  978.058747][   T73]      ipv6_add_addr+0x411/0x2000
[  978.058747][   T73]      inet6_addr_add+0x30e/0xa40
[  978.058747][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  978.058747][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  978.058747][   T73]      netlink_rcv_skb+0x130/0x360
[  978.058747][   T73]      netlink_unicast+0x449/0x710
[  978.058747][   T73]      netlink_sendmsg+0x723/0xbe0
[  978.058747][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  978.058747][   T73]      ___sys_sendmsg+0xee/0x170
[  978.058747][   T73]      __sys_sendmsg+0xcd/0x170
[  978.058747][   T73]      do_syscall_64+0xc6/0x1e0
[  978.058747][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  978.058747][   T73] 
[  978.061778][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  978.061778][   T73]      netdev_get_by_index+0x5e/0x80
[  978.061778][   T73]      fib6_nh_init+0x3d8/0x1580
[  978.061778][   T73]      ip6_route_info_create+0xf18/0x17d0
[  978.061778][   T73]      ip6_route_add+0x1c/0x140
[  978.061778][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  978.061778][   T73]      addrconf_add_dev+0xe2/0x170
[  978.061778][   T73]      inet6_addr_add+0x12f/0xa40
[  978.061778][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  978.061778][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  978.061778][   T73]      netlink_rcv_skb+0x130/0x360
[  978.061778][   T73]      netlink_unicast+0x449/0x710
[  978.061778][   T73]      netlink_sendmsg+0x723/0xbe0
[  978.061778][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  978.061778][   T73]      ___sys_sendmsg+0xee/0x170
[  978.061778][   T73]      __sys_sendmsg+0xcd/0x170
[  978.061778][   T73]      do_syscall_64+0xc6/0x1e0
[  978.061778][   T73] 
[  978.064698][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  978.064698][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  978.064698][   T73]      ipv6_find_idev+0x102/0x170
[  978.064698][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  978.064698][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  978.064698][   T73]      netlink_rcv_skb+0x130/0x360
[  978.064698][   T73]      netlink_unicast+0x449/0x710
[  978.064698][   T73]      netlink_sendmsg+0x723/0xbe0
[  978.064698][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  978.064698][   T73]      ___sys_sendmsg+0xee/0x170
[  978.064698][   T73]      __sys_sendmsg+0xcd/0x170
[  978.064698][   T73]      do_syscall_64+0xc6/0x1e0
[  978.064698][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  978.064698][   T73] 
[  978.067004][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  978.067004][   T73]      neigh_parms_alloc+0x1e5/0x510
[  978.067004][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  978.067004][   T73]      ipv6_find_idev+0x102/0x170
[  978.067004][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  978.067004][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  978.067004][   T73]      netlink_rcv_skb+0x130/0x360
[  978.067004][   T73]      netlink_unicast+0x449/0x710
[  978.067004][   T73]      netlink_sendmsg+0x723/0xbe0
[  978.067004][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  978.067004][   T73]      ___sys_sendmsg+0xee/0x170
[  978.067004][   T73]      __sys_sendmsg+0xcd/0x170
[  978.067004][   T73]      do_syscall_64+0xc6/0x1e0
[  978.067004][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  978.067004][   T73] 
[  978.069631][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  978.070056][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  978.070056][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  978.070056][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  978.070056][   T73]      fib6_nh_init+0xa22/0x1580
[  978.070056][   T73]      ip6_route_info_create+0xf18/0x17d0
[  978.070056][   T73]      ip6_route_add+0x1c/0x140
[  978.070056][   T73]      inet6_rtm_newroute+0x104/0x110
[  978.070056][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  978.070056][   T73]      netlink_rcv_skb+0x130/0x360
[  978.070056][   T73]      netlink_unicast+0x449/0x710
[  978.070056][   T73]      netlink_sendmsg+0x723/0xbe0
[  978.070056][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  978.070056][   T73]      ___sys_sendmsg+0xee/0x170
[  978.070056][   T73]      __sys_sendmsg+0xcd/0x170
[  978.070056][   T73]      do_syscall_64+0xc6/0x1e0
[  978.070056][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  978.070056][   T73] 
[  978.073172][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  978.073172][   T73]      dst_init+0x84/0x4a0
[  978.073172][   T73]      dst_alloc+0x97/0x150
[  978.073172][   T73]      ip6_dst_alloc+0x23/0x90
[  978.073172][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  978.073172][   T73]      ip6_pol_route+0x56f/0x840
[  978.073172][   T73]      fib6_rule_lookup+0x456/0x630
[  978.073172][   T73]      ip6_route_input+0x59c/0xa50
[  978.073172][   T73]      ipv6_rcv+0x397/0x810
[  978.073172][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  978.073172][   T73]      process_backlog+0x101/0x620
[  978.073172][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  978.073172][   T73]      net_rx_action+0x495/0xbe0
[  978.073172][   T73]      __do_softirq+0x1b5/0x7f6
[  978.073172][   T73] 
[  978.076009][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  978.076009][   T73]      netdev_get_by_index+0x5e/0x80
[  978.076009][   T73]      fib6_nh_init+0x3d8/0x1580
[  978.076009][   T73]      ip6_route_info_create+0xf18/0x17d0
[  978.076009][   T73]      ip6_route_add+0x1c/0x140
[  978.076009][   T73]      addrconf_prefix_route+0x2a6/0x430
[  978.076009][   T73]      inet6_addr_add+0x4f8/0xa40
[  978.076009][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  978.076009][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  978.076009][   T73]      netlink_rcv_skb+0x130/0x360
[  978.076009][   T73]      netlink_unicast+0x449/0x710
[  978.076009][   T73]      netlink_sendmsg+0x723/0xbe0
[  978.076009][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  978.076009][   T73]      ___sys_sendmsg+0xee/0x170
[  978.076009][   T73]      __sys_sendmsg+0xcd/0x170
[  978.076009][   T73]      do_syscall_64+0xc6/0x1e0
[  978.076009][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  978.076009][   T73] 
[  978.079378][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  978.079378][   T73]      netdev_get_by_index+0x5e/0x80
[  978.079378][   T73]      fib6_nh_init+0x3d8/0x1580
[  978.079378][   T73]      ip6_route_info_create+0xf18/0x17d0
[  978.079378][   T73]      addrconf_f6i_alloc+0x315/0x560
[  978.079378][   T73]      ipv6_add_addr+0x411/0x2000
[  978.079378][   T73]      inet6_addr_add+0x30e/0xa40
[  978.079378][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  978.079378][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  978.079378][   T73]      netlink_rcv_skb+0x130/0x360
[  978.079378][   T73]      netlink_unicast+0x449/0x710
[  978.079378][   T73]      netlink_sendmsg+0x723/0xbe0
[  978.079378][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  978.079378][   T73]      ___sys_sendmsg+0xee/0x170
[  978.079378][   T73]      __sys_sendmsg+0xcd/0x170
[  978.079378][   T73]      do_syscall_64+0xc6/0x1e0
[  978.079378][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  978.079378][   T73] 
[  978.082984][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  978.082984][   T73]      netdev_get_by_index+0x5e/0x80
[  978.082984][   T73]      fib6_nh_init+0x3d8/0x1580
[  978.082984][   T73]      ip6_route_info_create+0xf18/0x17d0
[  978.082984][   T73]      ip6_route_add+0x1c/0x140
[  978.082984][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  978.082984][   T73]      addrconf_add_dev+0xe2/0x170
[  978.082984][   T73]      inet6_addr_add+0x12f/0xa40
[  978.082984][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  978.082984][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  978.082984][   T73]      netlink_rcv_skb+0x130/0x360
[  978.082984][   T73]      netlink_unicast+0x449/0x710
[  978.082984][   T73]      netlink_sendmsg+0x723/0xbe0
[  978.082984][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  978.082984][   T73]      ___sys_sendmsg+0xee/0x170
[  978.082984][   T73]      __sys_sendmsg+0xcd/0x170
[  978.082984][   T73]      do_syscall_64+0xc6/0x1e0
[  978.082984][   T73] 
[  978.086412][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  978.086412][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  978.086412][   T73]      ipv6_find_idev+0x102/0x170
[  978.086412][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  978.086412][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  978.086412][   T73]      netlink_rcv_skb+0x130/0x360
[  978.086412][   T73]      netlink_unicast+0x449/0x710
[  978.086412][   T73]      netlink_sendmsg+0x723/0xbe0
[  978.086412][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  978.086412][   T73]      ___sys_sendmsg+0xee/0x170
[  978.086412][   T73]      __sys_sendmsg+0xcd/0x170
[  978.086412][   T73]      do_syscall_64+0xc6/0x1e0
[  978.086412][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  978.086412][   T73] 
[  978.089163][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  978.089163][   T73]      neigh_parms_alloc+0x1e5/0x510
[  978.089163][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  978.089163][   T73]      ipv6_find_idev+0x102/0x170
[  978.089163][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  978.089163][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  978.089163][   T73]      netlink_rcv_skb+0x130/0x360
[  978.089163][   T73]      netlink_unicast+0x449/0x710
[  978.089163][   T73]      netlink_sendmsg+0x723/0xbe0
[  978.089163][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  978.089163][   T73]      ___sys_sendmsg+0xee/0x170
[  978.089163][   T73]      __sys_sendmsg+0xcd/0x170
[  978.089163][   T73]      do_syscall_64+0xc6/0x1e0
[  978.089163][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  978.089163][   T73] 
[  978.092263][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  978.092704][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  978.092704][   T73]      netdev_get_by_index+0x5e/0x80
[  978.092704][   T73]      fib6_nh_init+0x3d8/0x1580
[  978.092704][   T73]      ip6_route_info_create+0xf18/0x17d0
[  978.092704][   T73]      addrconf_f6i_alloc+0x265/0x560
[  978.092704][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  978.092704][   T73]      addrconf_join_anycast+0x1c0/0x220
[  978.092704][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  978.092704][   T73]      addrconf_dad_completed+0x12b/0xe20
[  978.092704][   T73]      addrconf_dad_begin+0x310/0x670
[  978.092704][   T73]      addrconf_dad_work+0x10b/0xab0
[  978.092704][   T73]      process_one_work+0x84d/0x18a0
[  978.092704][   T73]      worker_thread+0x587/0xd30
[  978.092704][   T73]      kthread+0x28a/0x350
[  978.092704][   T73]      ret_from_fork+0x31/0x70
[  978.092704][   T73]      ret_from_fork_asm+0x1a/0x30
[  978.092704][   T73] 
[  978.096143][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  978.096143][   T73]      netdev_get_by_index+0x5e/0x80
[  978.096143][   T73]      fib6_nh_init+0x3d8/0x1580
[  978.096143][   T73]      ip6_route_info_create+0xf18/0x17d0
[  978.096143][   T73]      ip6_route_add+0x1c/0x140
[  978.096143][   T73]      addrconf_prefix_route+0x2a6/0x430
[  978.096143][   T73]      inet6_addr_add+0x4f8/0xa40
[  978.096143][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  978.096143][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  978.096143][   T73]      netlink_rcv_skb+0x130/0x360
[  978.096143][   T73]      netlink_unicast+0x449/0x710
[  978.096143][   T73]      netlink_sendmsg+0x723/0xbe0
[  978.096143][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  978.096143][   T73]      ___sys_sendmsg+0xee/0x170
[  978.096143][   T73]      __sys_sendmsg+0xcd/0x170
[  978.096143][   T73]      do_syscall_64+0xc6/0x1e0
[  978.096143][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  978.096143][   T73] 
[  978.099768][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  978.099768][   T73]      netdev_get_by_index+0x5e/0x80
[  978.099768][   T73]      fib6_nh_init+0x3d8/0x1580
[  978.099768][   T73]      ip6_route_info_create+0xf18/0x17d0
[  978.099768][   T73]      addrconf_f6i_alloc+0x315/0x560
[  978.099768][   T73]      ipv6_add_addr+0x411/0x2000
[  978.099768][   T73]      inet6_addr_add+0x30e/0xa40
[  978.099768][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  978.099768][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  978.099768][   T73]      netlink_rcv_skb+0x130/0x360
[  978.099768][   T73]      netlink_unicast+0x449/0x710
[  978.099768][   T73]      netlink_sendmsg+0x723/0xbe0
[  978.099768][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  978.099768][   T73]      ___sys_sendmsg+0xee/0x170
[  978.099768][   T73]      __sys_sendmsg+0xcd/0x170
[  978.099768][   T73]      do_syscall_64+0xc6/0x1e0
[  978.099768][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  978.099768][   T73] 
[  978.103361][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  978.103361][   T73]      netdev_get_by_index+0x5e/0x80
[  978.103361][   T73]      fib6_nh_init+0x3d8/0x1580
[  978.103361][   T73]      ip6_route_info_create+0xf18/0x17d0
[  978.103361][   T73]      ip6_route_add+0x1c/0x140
[  978.103361][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  978.103361][   T73]      addrconf_add_dev+0xe2/0x170
[  978.103361][   T73]      inet6_addr_add+0x12f/0xa40
[  978.103361][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  978.103361][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  978.103361][   T73]      netlink_rcv_skb+0x130/0x360
[  978.103361][   T73]      netlink_unicast+0x449/0x710
[  978.103361][   T73]      netlink_sendmsg+0x723/0xbe0
[  978.103361][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  978.103361][   T73]      ___sys_sendmsg+0xee/0x170
[  978.103361][   T73]      __sys_sendmsg+0xcd/0x170
[  978.103361][   T73]      do_syscall_64+0xc6/0x1e0
[  978.103361][   T73] 
[  978.106745][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  978.106745][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  978.106745][   T73]      ipv6_find_idev+0x102/0x170
[  978.106745][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  978.106745][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  978.106745][   T73]      netlink_rcv_skb+0x130/0x360
[  978.106745][   T73]      netlink_unicast+0x449/0x710
[  978.106745][   T73]      netlink_sendmsg+0x723/0xbe0
[  978.106745][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  978.106745][   T73]      ___sys_sendmsg+0xee/0x170
[  978.106745][   T73]      __sys_sendmsg+0xcd/0x170
[  978.106745][   T73]      do_syscall_64+0xc6/0x1e0
[  978.106745][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  978.106745][   T73] 
[  978.109314][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  978.109314][   T73]      neigh_parms_alloc+0x1e5/0x510
[  978.109314][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  978.109314][   T73]      ipv6_find_idev+0x102/0x170
[  978.109314][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  978.109314][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  978.109314][   T73]      netlink_rcv_skb+0x130/0x360
[  978.109314][   T73]      netlink_unicast+0x449/0x710
[  978.109314][   T73]      netlink_sendmsg+0x723/0xbe0
[  978.109314][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  978.109314][   T73]      ___sys_sendmsg+0xee/0x170
[  978.109314][   T73]      __sys_sendmsg+0xcd/0x170
[  978.109314][   T73]      do_syscall_64+0xc6/0x1e0
[  978.109314][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  978.109314][   T73] 
[  984.359855][   T42] INFO: task modprobe:885 blocked for more than 737 seconds.
[  984.360142][   T42]       Not tainted 6.8.0-virtme #1
[  984.360257][   T42] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  984.360483][   T42] task:modprobe        state:D stack:25856 pid:885   tgid:885   ppid:39     flags:0x00004002
[  984.360783][   T42] Call Trace:
[  984.360902][   T42]  <TASK>
[  984.360973][   T42]  __schedule+0x705/0x1ac0
[  984.361105][   T42]  ? __pfx___schedule+0x10/0x10
[  984.361228][   T42]  ? schedule+0x1a5/0x210
[  984.361328][   T42]  ? __pfx_lock_acquire.part.0+0x10/0x10
[  984.361458][   T42]  ? mark_lock+0x38/0x3e0
[  984.361552][   T42]  ? do_raw_spin_lock+0x131/0x270
[  984.361693][   T42]  ? schedule+0x1a5/0x210
[  984.361797][   T42]  schedule+0xdf/0x210
[  984.361893][   T42]  schedule_preempt_disabled+0x15/0x30
[  984.362015][   T42]  rwsem_down_write_slowpath+0x3af/0xab0
[  984.362147][   T42]  ? __pfx_rwsem_down_write_slowpath+0x10/0x10
[  984.362304][   T42]  ? __pfx_lock_acquire.part.0+0x10/0x10
[  984.362437][   T42]  ? lock_acquire+0x1c1/0x220
[  984.362558][   T42]  ? register_pernet_subsys+0x1a/0x50
[  984.362695][   T42]  down_write+0x1c9/0x200
[  984.362793][   T42]  ? __pfx_down_write+0x10/0x10
[  984.362922][   T42]  ? __lock_release+0x103/0x460
[  984.363043][   T42]  ? __create_object+0x5e/0xb0
[  984.363171][   T42]  ? __pfx___lock_release+0x10/0x10
[  984.363297][   T42]  register_pernet_subsys+0x1a/0x50
[  984.363421][   T42]  tcf_register_action+0xa3/0x600
[  984.363546][   T42]  ? __pfx_pedit_init_module+0x10/0x10 [act_pedit]
[  984.363717][   T42]  do_one_initcall+0xc8/0x3f0
[  984.363845][   T42]  ? __pfx_do_one_initcall+0x10/0x10
[  984.363972][   T42]  ? __create_object+0x5e/0xb0
[  984.364098][   T42]  ? kasan_unpoison+0x27/0x60
[  984.364225][   T42]  do_init_module+0x233/0x740
[  984.364356][   T42]  load_module+0x16b5/0x2350
[  984.364504][   T42]  ? __pfx_load_module+0x10/0x10
[  984.364626][   T42]  ? kernel_read_file+0x3d2/0x520
[  984.364782][   T42]  ? kernel_read_file+0x300/0x520
[  984.364925][   T42]  ? __pfx_kernel_read_file+0x10/0x10
[  984.365058][   T42]  ? init_module_from_file+0xd2/0x130
[  984.365194][   T42]  init_module_from_file+0xd2/0x130
[  984.365318][   T42]  ? __pfx_init_module_from_file+0x10/0x10
[  984.365472][   T42]  ? __lock_release+0x103/0x460
[  984.365594][   T42]  ? idempotent_init_module+0x32a/0x620
[  984.365743][   T42]  ? idempotent_init_module+0x32a/0x620
[  984.365866][   T42]  ? do_raw_spin_unlock+0x58/0x220
[  984.365994][   T42]  idempotent_init_module+0x342/0x620
[  984.366120][   T42]  ? __pfx_idempotent_init_module+0x10/0x10
[  984.366296][   T42]  __x64_sys_finit_module+0xbe/0x130
[  984.366424][   T42]  do_syscall_64+0xc6/0x1e0
[  984.366551][   T42]  entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  984.366711][   T42] RIP: 0033:0x7f505b1e4e5d
[  984.366843][   T42] RSP: 002b:00007ffe4f186f28 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[  984.367033][   T42] RAX: ffffffffffffffda RBX: 000055ce7b6ccc80 RCX: 00007f505b1e4e5d
[  984.367214][   T42] RDX: 0000000000000000 RSI: 000055ce5e14da2a RDI: 0000000000000000
[  984.367396][   T42] RBP: 0000000000040000 R08: 0000000000000000 R09: 00007ffe4f187060
[  984.367576][   T42] R10: 0000000000000000 R11: 0000000000000246 R12: 000055ce5e14da2a
[  984.367769][   T42] R13: 000055ce7b6ccac0 R14: 000055ce7b6cd0b0 R15: 000055ce7b6cccf2
[  984.367968][   T42]  </TASK>
[  984.368062][   T42] 
[  984.368062][   T42] Showing all locks held in the system:
[  984.368236][   T42] 2 locks held by kworker/u20:0/39:
[  984.368356][   T42]  #0: ffff888001161d48 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0
[  984.368608][   T42]  #1: ffffc900002c7da0 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0
[  984.368905][   T42] 1 lock held by khungtaskd/42:
[  984.369044][   T42]  #0: ffffffffaf7591e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x350
[  984.369267][   T42] 3 locks held by kworker/u16:1/73:
[  984.369386][   T42]  #0: ffff88800190a948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0
[  984.369632][   T42]  #1: ffffc900004efda0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0
[  984.369867][   T42]  #2: ffffffffaff6a1d0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xbc/0xb60
[  984.370087][   T42] 1 lock held by modprobe/885:
[  984.370206][   T42]  #0: ffffffffaff6a1d0 (pernet_ops_rwsem){++++}-{3:3}, at: register_pernet_subsys+0x1a/0x50
[  984.370462][   T42] 
[  984.370525][   T42] =============================================
[  984.370525][   T42] 
[  988.351705][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  988.352127][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  988.352127][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  988.352127][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  988.352127][   T73]      fib6_nh_init+0xa22/0x1580
[  988.352127][   T73]      ip6_route_info_create+0xf18/0x17d0
[  988.352127][   T73]      ip6_route_add+0x1c/0x140
[  988.352127][   T73]      inet6_rtm_newroute+0x104/0x110
[  988.352127][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  988.352127][   T73]      netlink_rcv_skb+0x130/0x360
[  988.352127][   T73]      netlink_unicast+0x449/0x710
[  988.352127][   T73]      netlink_sendmsg+0x723/0xbe0
[  988.352127][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  988.352127][   T73]      ___sys_sendmsg+0xee/0x170
[  988.352127][   T73]      __sys_sendmsg+0xcd/0x170
[  988.352127][   T73]      do_syscall_64+0xc6/0x1e0
[  988.352127][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  988.352127][   T73] 
[  988.354083][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  988.354083][   T73]      dst_init+0x84/0x4a0
[  988.354083][   T73]      dst_alloc+0x97/0x150
[  988.354083][   T73]      ip6_dst_alloc+0x23/0x90
[  988.354083][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  988.354083][   T73]      ip6_pol_route+0x56f/0x840
[  988.354083][   T73]      fib6_rule_lookup+0x456/0x630
[  988.354083][   T73]      ip6_route_input+0x59c/0xa50
[  988.354083][   T73]      ipv6_rcv+0x397/0x810
[  988.354083][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  988.354083][   T73]      process_backlog+0x101/0x620
[  988.354083][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  988.354083][   T73]      net_rx_action+0x495/0xbe0
[  988.354083][   T73]      __do_softirq+0x1b5/0x7f6
[  988.354083][   T73] 
[  988.355734][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  988.355734][   T73]      netdev_get_by_index+0x5e/0x80
[  988.355734][   T73]      fib6_nh_init+0x3d8/0x1580
[  988.355734][   T73]      ip6_route_info_create+0xf18/0x17d0
[  988.355734][   T73]      ip6_route_add+0x1c/0x140
[  988.355734][   T73]      addrconf_prefix_route+0x2a6/0x430
[  988.355734][   T73]      inet6_addr_add+0x4f8/0xa40
[  988.355734][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  988.355734][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  988.355734][   T73]      netlink_rcv_skb+0x130/0x360
[  988.355734][   T73]      netlink_unicast+0x449/0x710
[  988.355734][   T73]      netlink_sendmsg+0x723/0xbe0
[  988.355734][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  988.355734][   T73]      ___sys_sendmsg+0xee/0x170
[  988.355734][   T73]      __sys_sendmsg+0xcd/0x170
[  988.355734][   T73]      do_syscall_64+0xc6/0x1e0
[  988.355734][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  988.355734][   T73] 
[  988.357759][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  988.357759][   T73]      netdev_get_by_index+0x5e/0x80
[  988.357759][   T73]      fib6_nh_init+0x3d8/0x1580
[  988.357759][   T73]      ip6_route_info_create+0xf18/0x17d0
[  988.357759][   T73]      addrconf_f6i_alloc+0x315/0x560
[  988.357759][   T73]      ipv6_add_addr+0x411/0x2000
[  988.357759][   T73]      inet6_addr_add+0x30e/0xa40
[  988.357759][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  988.357759][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  988.357759][   T73]      netlink_rcv_skb+0x130/0x360
[  988.357759][   T73]      netlink_unicast+0x449/0x710
[  988.357759][   T73]      netlink_sendmsg+0x723/0xbe0
[  988.357759][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  988.357759][   T73]      ___sys_sendmsg+0xee/0x170
[  988.357759][   T73]      __sys_sendmsg+0xcd/0x170
[  988.357759][   T73]      do_syscall_64+0xc6/0x1e0
[  988.357759][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  988.357759][   T73] 
[  988.359767][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  988.359767][   T73]      netdev_get_by_index+0x5e/0x80
[  988.359767][   T73]      fib6_nh_init+0x3d8/0x1580
[  988.359767][   T73]      ip6_route_info_create+0xf18/0x17d0
[  988.359767][   T73]      ip6_route_add+0x1c/0x140
[  988.359767][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  988.359767][   T73]      addrconf_add_dev+0xe2/0x170
[  988.359767][   T73]      inet6_addr_add+0x12f/0xa40
[  988.359767][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  988.359767][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  988.359767][   T73]      netlink_rcv_skb+0x130/0x360
[  988.359767][   T73]      netlink_unicast+0x449/0x710
[  988.359767][   T73]      netlink_sendmsg+0x723/0xbe0
[  988.359767][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  988.359767][   T73]      ___sys_sendmsg+0xee/0x170
[  988.359767][   T73]      __sys_sendmsg+0xcd/0x170
[  988.359767][   T73]      do_syscall_64+0xc6/0x1e0
[  988.359767][   T73] 
[  988.361761][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  988.361761][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  988.361761][   T73]      ipv6_find_idev+0x102/0x170
[  988.361761][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  988.361761][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  988.361761][   T73]      netlink_rcv_skb+0x130/0x360
[  988.361761][   T73]      netlink_unicast+0x449/0x710
[  988.361761][   T73]      netlink_sendmsg+0x723/0xbe0
[  988.361761][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  988.361761][   T73]      ___sys_sendmsg+0xee/0x170
[  988.361761][   T73]      __sys_sendmsg+0xcd/0x170
[  988.361761][   T73]      do_syscall_64+0xc6/0x1e0
[  988.361761][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  988.361761][   T73] 
[  988.363321][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  988.363321][   T73]      neigh_parms_alloc+0x1e5/0x510
[  988.363321][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  988.363321][   T73]      ipv6_find_idev+0x102/0x170
[  988.363321][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  988.363321][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  988.363321][   T73]      netlink_rcv_skb+0x130/0x360
[  988.363321][   T73]      netlink_unicast+0x449/0x710
[  988.363321][   T73]      netlink_sendmsg+0x723/0xbe0
[  988.363321][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  988.363321][   T73]      ___sys_sendmsg+0xee/0x170
[  988.363321][   T73]      __sys_sendmsg+0xcd/0x170
[  988.363321][   T73]      do_syscall_64+0xc6/0x1e0
[  988.363321][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  988.363321][   T73] 
[  988.365055][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  988.365355][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  988.365355][   T73]      netdev_get_by_index+0x5e/0x80
[  988.365355][   T73]      fib6_nh_init+0x3d8/0x1580
[  988.365355][   T73]      ip6_route_info_create+0xf18/0x17d0
[  988.365355][   T73]      addrconf_f6i_alloc+0x265/0x560
[  988.365355][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  988.365355][   T73]      addrconf_join_anycast+0x1c0/0x220
[  988.365355][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  988.365355][   T73]      addrconf_dad_completed+0x12b/0xe20
[  988.365355][   T73]      addrconf_dad_begin+0x310/0x670
[  988.365355][   T73]      addrconf_dad_work+0x10b/0xab0
[  988.365355][   T73]      process_one_work+0x84d/0x18a0
[  988.365355][   T73]      worker_thread+0x587/0xd30
[  988.365355][   T73]      kthread+0x28a/0x350
[  988.365355][   T73]      ret_from_fork+0x31/0x70
[  988.365355][   T73]      ret_from_fork_asm+0x1a/0x30
[  988.365355][   T73] 
[  988.367295][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  988.367295][   T73]      netdev_get_by_index+0x5e/0x80
[  988.367295][   T73]      fib6_nh_init+0x3d8/0x1580
[  988.367295][   T73]      ip6_route_info_create+0xf18/0x17d0
[  988.367295][   T73]      ip6_route_add+0x1c/0x140
[  988.367295][   T73]      addrconf_prefix_route+0x2a6/0x430
[  988.367295][   T73]      inet6_addr_add+0x4f8/0xa40
[  988.367295][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  988.367295][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  988.367295][   T73]      netlink_rcv_skb+0x130/0x360
[  988.367295][   T73]      netlink_unicast+0x449/0x710
[  988.367295][   T73]      netlink_sendmsg+0x723/0xbe0
[  988.367295][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  988.367295][   T73]      ___sys_sendmsg+0xee/0x170
[  988.367295][   T73]      __sys_sendmsg+0xcd/0x170
[  988.367295][   T73]      do_syscall_64+0xc6/0x1e0
[  988.367295][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  988.367295][   T73] 
[  988.369308][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  988.369308][   T73]      netdev_get_by_index+0x5e/0x80
[  988.369308][   T73]      fib6_nh_init+0x3d8/0x1580
[  988.369308][   T73]      ip6_route_info_create+0xf18/0x17d0
[  988.369308][   T73]      addrconf_f6i_alloc+0x315/0x560
[  988.369308][   T73]      ipv6_add_addr+0x411/0x2000
[  988.369308][   T73]      inet6_addr_add+0x30e/0xa40
[  988.369308][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  988.369308][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  988.369308][   T73]      netlink_rcv_skb+0x130/0x360
[  988.369308][   T73]      netlink_unicast+0x449/0x710
[  988.369308][   T73]      netlink_sendmsg+0x723/0xbe0
[  988.369308][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  988.369308][   T73]      ___sys_sendmsg+0xee/0x170
[  988.369308][   T73]      __sys_sendmsg+0xcd/0x170
[  988.369308][   T73]      do_syscall_64+0xc6/0x1e0
[  988.369308][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  988.369308][   T73] 
[  988.371334][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  988.371334][   T73]      netdev_get_by_index+0x5e/0x80
[  988.371334][   T73]      fib6_nh_init+0x3d8/0x1580
[  988.371334][   T73]      ip6_route_info_create+0xf18/0x17d0
[  988.371334][   T73]      ip6_route_add+0x1c/0x140
[  988.371334][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  988.371334][   T73]      addrconf_add_dev+0xe2/0x170
[  988.371334][   T73]      inet6_addr_add+0x12f/0xa40
[  988.371334][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  988.371334][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  988.371334][   T73]      netlink_rcv_skb+0x130/0x360
[  988.371334][   T73]      netlink_unicast+0x449/0x710
[  988.371334][   T73]      netlink_sendmsg+0x723/0xbe0
[  988.371334][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  988.371334][   T73]      ___sys_sendmsg+0xee/0x170
[  988.371334][   T73]      __sys_sendmsg+0xcd/0x170
[  988.371334][   T73]      do_syscall_64+0xc6/0x1e0
[  988.371334][   T73] 
[  988.373313][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  988.373313][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  988.373313][   T73]      ipv6_find_idev+0x102/0x170
[  988.373313][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  988.373313][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  988.373313][   T73]      netlink_rcv_skb+0x130/0x360
[  988.373313][   T73]      netlink_unicast+0x449/0x710
[  988.373313][   T73]      netlink_sendmsg+0x723/0xbe0
[  988.373313][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  988.373313][   T73]      ___sys_sendmsg+0xee/0x170
[  988.373313][   T73]      __sys_sendmsg+0xcd/0x170
[  988.373313][   T73]      do_syscall_64+0xc6/0x1e0
[  988.373313][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  988.373313][   T73] 
[  988.374860][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  988.374860][   T73]      neigh_parms_alloc+0x1e5/0x510
[  988.374860][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  988.374860][   T73]      ipv6_find_idev+0x102/0x170
[  988.374860][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  988.374860][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  988.374860][   T73]      netlink_rcv_skb+0x130/0x360
[  988.374860][   T73]      netlink_unicast+0x449/0x710
[  988.374860][   T73]      netlink_sendmsg+0x723/0xbe0
[  988.374860][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  988.374860][   T73]      ___sys_sendmsg+0xee/0x170
[  988.374860][   T73]      __sys_sendmsg+0xcd/0x170
[  988.374860][   T73]      do_syscall_64+0xc6/0x1e0
[  988.374860][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  988.374860][   T73] 
[  988.376565][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  988.376846][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  988.376846][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  988.376846][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  988.376846][   T73]      fib6_nh_init+0xa22/0x1580
[  988.376846][   T73]      ip6_route_info_create+0xf18/0x17d0
[  988.376846][   T73]      ip6_route_add+0x1c/0x140
[  988.376846][   T73]      inet6_rtm_newroute+0x104/0x110
[  988.376846][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  988.376846][   T73]      netlink_rcv_skb+0x130/0x360
[  988.376846][   T73]      netlink_unicast+0x449/0x710
[  988.376846][   T73]      netlink_sendmsg+0x723/0xbe0
[  988.376846][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  988.376846][   T73]      ___sys_sendmsg+0xee/0x170
[  988.376846][   T73]      __sys_sendmsg+0xcd/0x170
[  988.376846][   T73]      do_syscall_64+0xc6/0x1e0
[  988.376846][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  988.376846][   T73] 
[  988.378917][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  988.378917][   T73]      dst_init+0x84/0x4a0
[  988.378917][   T73]      dst_alloc+0x97/0x150
[  988.378917][   T73]      ip6_dst_alloc+0x23/0x90
[  988.378917][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  988.378917][   T73]      ip6_pol_route+0x56f/0x840
[  988.378917][   T73]      fib6_rule_lookup+0x456/0x630
[  988.378917][   T73]      ip6_route_input+0x59c/0xa50
[  988.378917][   T73]      ipv6_rcv+0x397/0x810
[  988.378917][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  988.378917][   T73]      process_backlog+0x101/0x620
[  988.378917][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  988.378917][   T73]      net_rx_action+0x495/0xbe0
[  988.378917][   T73]      __do_softirq+0x1b5/0x7f6
[  988.378917][   T73] 
[  988.380830][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  988.380830][   T73]      netdev_get_by_index+0x5e/0x80
[  988.380830][   T73]      fib6_nh_init+0x3d8/0x1580
[  988.380830][   T73]      ip6_route_info_create+0xf18/0x17d0
[  988.380830][   T73]      ip6_route_add+0x1c/0x140
[  988.380830][   T73]      addrconf_prefix_route+0x2a6/0x430
[  988.380830][   T73]      inet6_addr_add+0x4f8/0xa40
[  988.380830][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  988.380830][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  988.380830][   T73]      netlink_rcv_skb+0x130/0x360
[  988.380830][   T73]      netlink_unicast+0x449/0x710
[  988.380830][   T73]      netlink_sendmsg+0x723/0xbe0
[  988.380830][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  988.380830][   T73]      ___sys_sendmsg+0xee/0x170
[  988.380830][   T73]      __sys_sendmsg+0xcd/0x170
[  988.380830][   T73]      do_syscall_64+0xc6/0x1e0
[  988.380830][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  988.380830][   T73] 
[  988.383226][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  988.383226][   T73]      netdev_get_by_index+0x5e/0x80
[  988.383226][   T73]      fib6_nh_init+0x3d8/0x1580
[  988.383226][   T73]      ip6_route_info_create+0xf18/0x17d0
[  988.383226][   T73]      addrconf_f6i_alloc+0x315/0x560
[  988.383226][   T73]      ipv6_add_addr+0x411/0x2000
[  988.383226][   T73]      inet6_addr_add+0x30e/0xa40
[  988.383226][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  988.383226][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  988.383226][   T73]      netlink_rcv_skb+0x130/0x360
[  988.383226][   T73]      netlink_unicast+0x449/0x710
[  988.383226][   T73]      netlink_sendmsg+0x723/0xbe0
[  988.383226][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  988.383226][   T73]      ___sys_sendmsg+0xee/0x170
[  988.383226][   T73]      __sys_sendmsg+0xcd/0x170
[  988.383226][   T73]      do_syscall_64+0xc6/0x1e0
[  988.383226][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  988.383226][   T73] 
[  988.386035][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  988.386035][   T73]      netdev_get_by_index+0x5e/0x80
[  988.386035][   T73]      fib6_nh_init+0x3d8/0x1580
[  988.386035][   T73]      ip6_route_info_create+0xf18/0x17d0
[  988.386035][   T73]      ip6_route_add+0x1c/0x140
[  988.386035][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  988.386035][   T73]      addrconf_add_dev+0xe2/0x170
[  988.386035][   T73]      inet6_addr_add+0x12f/0xa40
[  988.386035][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  988.386035][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  988.386035][   T73]      netlink_rcv_skb+0x130/0x360
[  988.386035][   T73]      netlink_unicast+0x449/0x710
[  988.386035][   T73]      netlink_sendmsg+0x723/0xbe0
[  988.386035][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  988.386035][   T73]      ___sys_sendmsg+0xee/0x170
[  988.386035][   T73]      __sys_sendmsg+0xcd/0x170
[  988.386035][   T73]      do_syscall_64+0xc6/0x1e0
[  988.386035][   T73] 
[  988.388225][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  988.388225][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  988.388225][   T73]      ipv6_find_idev+0x102/0x170
[  988.388225][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  988.388225][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  988.388225][   T73]      netlink_rcv_skb+0x130/0x360
[  988.388225][   T73]      netlink_unicast+0x449/0x710
[  988.388225][   T73]      netlink_sendmsg+0x723/0xbe0
[  988.388225][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  988.388225][   T73]      ___sys_sendmsg+0xee/0x170
[  988.388225][   T73]      __sys_sendmsg+0xcd/0x170
[  988.388225][   T73]      do_syscall_64+0xc6/0x1e0
[  988.388225][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  988.388225][   T73] 
[  988.390043][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  988.390043][   T73]      neigh_parms_alloc+0x1e5/0x510
[  988.390043][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  988.390043][   T73]      ipv6_find_idev+0x102/0x170
[  988.390043][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  988.390043][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  988.390043][   T73]      netlink_rcv_skb+0x130/0x360
[  988.390043][   T73]      netlink_unicast+0x449/0x710
[  988.390043][   T73]      netlink_sendmsg+0x723/0xbe0
[  988.390043][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  988.390043][   T73]      ___sys_sendmsg+0xee/0x170
[  988.390043][   T73]      __sys_sendmsg+0xcd/0x170
[  988.390043][   T73]      do_syscall_64+0xc6/0x1e0
[  988.390043][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  988.390043][   T73] 
[  988.392022][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  988.392304][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  988.392304][   T73]      netdev_get_by_index+0x5e/0x80
[  988.392304][   T73]      fib6_nh_init+0x3d8/0x1580
[  988.392304][   T73]      ip6_route_info_create+0xf18/0x17d0
[  988.392304][   T73]      addrconf_f6i_alloc+0x265/0x560
[  988.392304][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  988.392304][   T73]      addrconf_join_anycast+0x1c0/0x220
[  988.392304][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  988.392304][   T73]      addrconf_dad_completed+0x12b/0xe20
[  988.392304][   T73]      addrconf_dad_begin+0x310/0x670
[  988.392304][   T73]      addrconf_dad_work+0x10b/0xab0
[  988.392304][   T73]      process_one_work+0x84d/0x18a0
[  988.392304][   T73]      worker_thread+0x587/0xd30
[  988.392304][   T73]      kthread+0x28a/0x350
[  988.392304][   T73]      ret_from_fork+0x31/0x70
[  988.392304][   T73]      ret_from_fork_asm+0x1a/0x30
[  988.392304][   T73] 
[  988.394908][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  988.394908][   T73]      netdev_get_by_index+0x5e/0x80
[  988.394908][   T73]      fib6_nh_init+0x3d8/0x1580
[  988.394908][   T73]      ip6_route_info_create+0xf18/0x17d0
[  988.394908][   T73]      ip6_route_add+0x1c/0x140
[  988.394908][   T73]      addrconf_prefix_route+0x2a6/0x430
[  988.394908][   T73]      inet6_addr_add+0x4f8/0xa40
[  988.394908][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  988.394908][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  988.394908][   T73]      netlink_rcv_skb+0x130/0x360
[  988.394908][   T73]      netlink_unicast+0x449/0x710
[  988.394908][   T73]      netlink_sendmsg+0x723/0xbe0
[  988.394908][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  988.394908][   T73]      ___sys_sendmsg+0xee/0x170
[  988.394908][   T73]      __sys_sendmsg+0xcd/0x170
[  988.394908][   T73]      do_syscall_64+0xc6/0x1e0
[  988.394908][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  988.394908][   T73] 
[  988.397137][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  988.397137][   T73]      netdev_get_by_index+0x5e/0x80
[  988.397137][   T73]      fib6_nh_init+0x3d8/0x1580
[  988.397137][   T73]      ip6_route_info_create+0xf18/0x17d0
[  988.397137][   T73]      addrconf_f6i_alloc+0x315/0x560
[  988.397137][   T73]      ipv6_add_addr+0x411/0x2000
[  988.397137][   T73]      inet6_addr_add+0x30e/0xa40
[  988.397137][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  988.397137][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  988.397137][   T73]      netlink_rcv_skb+0x130/0x360
[  988.397137][   T73]      netlink_unicast+0x449/0x710
[  988.397137][   T73]      netlink_sendmsg+0x723/0xbe0
[  988.397137][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  988.397137][   T73]      ___sys_sendmsg+0xee/0x170
[  988.397137][   T73]      __sys_sendmsg+0xcd/0x170
[  988.397137][   T73]      do_syscall_64+0xc6/0x1e0
[  988.397137][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  988.397137][   T73] 
[  988.399386][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  988.399386][   T73]      netdev_get_by_index+0x5e/0x80
[  988.399386][   T73]      fib6_nh_init+0x3d8/0x1580
[  988.399386][   T73]      ip6_route_info_create+0xf18/0x17d0
[  988.399386][   T73]      ip6_route_add+0x1c/0x140
[  988.399386][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  988.399386][   T73]      addrconf_add_dev+0xe2/0x170
[  988.399386][   T73]      inet6_addr_add+0x12f/0xa40
[  988.399386][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  988.399386][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  988.399386][   T73]      netlink_rcv_skb+0x130/0x360
[  988.399386][   T73]      netlink_unicast+0x449/0x710
[  988.399386][   T73]      netlink_sendmsg+0x723/0xbe0
[  988.399386][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  988.399386][   T73]      ___sys_sendmsg+0xee/0x170
[  988.399386][   T73]      __sys_sendmsg+0xcd/0x170
[  988.399386][   T73]      do_syscall_64+0xc6/0x1e0
[  988.399386][   T73] 
[  988.401682][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  988.401682][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  988.401682][   T73]      ipv6_find_idev+0x102/0x170
[  988.401682][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  988.401682][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  988.401682][   T73]      netlink_rcv_skb+0x130/0x360
[  988.401682][   T73]      netlink_unicast+0x449/0x710
[  988.401682][   T73]      netlink_sendmsg+0x723/0xbe0
[  988.401682][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  988.401682][   T73]      ___sys_sendmsg+0xee/0x170
[  988.401682][   T73]      __sys_sendmsg+0xcd/0x170
[  988.401682][   T73]      do_syscall_64+0xc6/0x1e0
[  988.401682][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  988.401682][   T73] 
[  988.403425][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  988.403425][   T73]      neigh_parms_alloc+0x1e5/0x510
[  988.403425][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  988.403425][   T73]      ipv6_find_idev+0x102/0x170
[  988.403425][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  988.403425][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  988.403425][   T73]      netlink_rcv_skb+0x130/0x360
[  988.403425][   T73]      netlink_unicast+0x449/0x710
[  988.403425][   T73]      netlink_sendmsg+0x723/0xbe0
[  988.403425][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  988.403425][   T73]      ___sys_sendmsg+0xee/0x170
[  988.403425][   T73]      __sys_sendmsg+0xcd/0x170
[  988.403425][   T73]      do_syscall_64+0xc6/0x1e0
[  988.403425][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  988.403425][   T73] 
[  998.647740][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[  998.648156][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  998.648156][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  998.648156][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  998.648156][   T73]      fib6_nh_init+0xa22/0x1580
[  998.648156][   T73]      ip6_route_info_create+0xf18/0x17d0
[  998.648156][   T73]      ip6_route_add+0x1c/0x140
[  998.648156][   T73]      inet6_rtm_newroute+0x104/0x110
[  998.648156][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  998.648156][   T73]      netlink_rcv_skb+0x130/0x360
[  998.648156][   T73]      netlink_unicast+0x449/0x710
[  998.648156][   T73]      netlink_sendmsg+0x723/0xbe0
[  998.648156][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  998.648156][   T73]      ___sys_sendmsg+0xee/0x170
[  998.648156][   T73]      __sys_sendmsg+0xcd/0x170
[  998.648156][   T73]      do_syscall_64+0xc6/0x1e0
[  998.648156][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  998.648156][   T73] 
[  998.650035][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[  998.650035][   T73]      dst_init+0x84/0x4a0
[  998.650035][   T73]      dst_alloc+0x97/0x150
[  998.650035][   T73]      ip6_dst_alloc+0x23/0x90
[  998.650035][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  998.650035][   T73]      ip6_pol_route+0x56f/0x840
[  998.650035][   T73]      fib6_rule_lookup+0x456/0x630
[  998.650035][   T73]      ip6_route_input+0x59c/0xa50
[  998.650035][   T73]      ipv6_rcv+0x397/0x810
[  998.650035][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  998.650035][   T73]      process_backlog+0x101/0x620
[  998.650035][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  998.650035][   T73]      net_rx_action+0x495/0xbe0
[  998.650035][   T73]      __do_softirq+0x1b5/0x7f6
[  998.650035][   T73] 
[  998.651740][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  998.651740][   T73]      netdev_get_by_index+0x5e/0x80
[  998.651740][   T73]      fib6_nh_init+0x3d8/0x1580
[  998.651740][   T73]      ip6_route_info_create+0xf18/0x17d0
[  998.651740][   T73]      ip6_route_add+0x1c/0x140
[  998.651740][   T73]      addrconf_prefix_route+0x2a6/0x430
[  998.651740][   T73]      inet6_addr_add+0x4f8/0xa40
[  998.651740][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  998.651740][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  998.651740][   T73]      netlink_rcv_skb+0x130/0x360
[  998.651740][   T73]      netlink_unicast+0x449/0x710
[  998.651740][   T73]      netlink_sendmsg+0x723/0xbe0
[  998.651740][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  998.651740][   T73]      ___sys_sendmsg+0xee/0x170
[  998.651740][   T73]      __sys_sendmsg+0xcd/0x170
[  998.651740][   T73]      do_syscall_64+0xc6/0x1e0
[  998.651740][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  998.651740][   T73] 
[  998.653727][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  998.653727][   T73]      netdev_get_by_index+0x5e/0x80
[  998.653727][   T73]      fib6_nh_init+0x3d8/0x1580
[  998.653727][   T73]      ip6_route_info_create+0xf18/0x17d0
[  998.653727][   T73]      addrconf_f6i_alloc+0x315/0x560
[  998.653727][   T73]      ipv6_add_addr+0x411/0x2000
[  998.653727][   T73]      inet6_addr_add+0x30e/0xa40
[  998.653727][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  998.653727][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  998.653727][   T73]      netlink_rcv_skb+0x130/0x360
[  998.653727][   T73]      netlink_unicast+0x449/0x710
[  998.653727][   T73]      netlink_sendmsg+0x723/0xbe0
[  998.653727][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  998.653727][   T73]      ___sys_sendmsg+0xee/0x170
[  998.653727][   T73]      __sys_sendmsg+0xcd/0x170
[  998.653727][   T73]      do_syscall_64+0xc6/0x1e0
[  998.653727][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  998.653727][   T73] 
[  998.655719][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  998.655719][   T73]      netdev_get_by_index+0x5e/0x80
[  998.655719][   T73]      fib6_nh_init+0x3d8/0x1580
[  998.655719][   T73]      ip6_route_info_create+0xf18/0x17d0
[  998.655719][   T73]      ip6_route_add+0x1c/0x140
[  998.655719][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  998.655719][   T73]      addrconf_add_dev+0xe2/0x170
[  998.655719][   T73]      inet6_addr_add+0x12f/0xa40
[  998.655719][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  998.655719][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  998.655719][   T73]      netlink_rcv_skb+0x130/0x360
[  998.655719][   T73]      netlink_unicast+0x449/0x710
[  998.655719][   T73]      netlink_sendmsg+0x723/0xbe0
[  998.655719][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  998.655719][   T73]      ___sys_sendmsg+0xee/0x170
[  998.655719][   T73]      __sys_sendmsg+0xcd/0x170
[  998.655719][   T73]      do_syscall_64+0xc6/0x1e0
[  998.655719][   T73] 
[  998.657675][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  998.657675][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  998.657675][   T73]      ipv6_find_idev+0x102/0x170
[  998.657675][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  998.657675][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  998.657675][   T73]      netlink_rcv_skb+0x130/0x360
[  998.657675][   T73]      netlink_unicast+0x449/0x710
[  998.657675][   T73]      netlink_sendmsg+0x723/0xbe0
[  998.657675][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  998.657675][   T73]      ___sys_sendmsg+0xee/0x170
[  998.657675][   T73]      __sys_sendmsg+0xcd/0x170
[  998.657675][   T73]      do_syscall_64+0xc6/0x1e0
[  998.657675][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  998.657675][   T73] 
[  998.659212][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[  998.659212][   T73]      neigh_parms_alloc+0x1e5/0x510
[  998.659212][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  998.659212][   T73]      ipv6_find_idev+0x102/0x170
[  998.659212][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  998.659212][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  998.659212][   T73]      netlink_rcv_skb+0x130/0x360
[  998.659212][   T73]      netlink_unicast+0x449/0x710
[  998.659212][   T73]      netlink_sendmsg+0x723/0xbe0
[  998.659212][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  998.659212][   T73]      ___sys_sendmsg+0xee/0x170
[  998.659212][   T73]      __sys_sendmsg+0xcd/0x170
[  998.659212][   T73]      do_syscall_64+0xc6/0x1e0
[  998.659212][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  998.659212][   T73] 
[  998.660922][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[  998.661202][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  998.661202][   T73]      netdev_get_by_index+0x5e/0x80
[  998.661202][   T73]      fib6_nh_init+0x3d8/0x1580
[  998.661202][   T73]      ip6_route_info_create+0xf18/0x17d0
[  998.661202][   T73]      addrconf_f6i_alloc+0x265/0x560
[  998.661202][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  998.661202][   T73]      addrconf_join_anycast+0x1c0/0x220
[  998.661202][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  998.661202][   T73]      addrconf_dad_completed+0x12b/0xe20
[  998.661202][   T73]      addrconf_dad_begin+0x310/0x670
[  998.661202][   T73]      addrconf_dad_work+0x10b/0xab0
[  998.661202][   T73]      process_one_work+0x84d/0x18a0
[  998.661202][   T73]      worker_thread+0x587/0xd30
[  998.661202][   T73]      kthread+0x28a/0x350
[  998.661202][   T73]      ret_from_fork+0x31/0x70
[  998.661202][   T73]      ret_from_fork_asm+0x1a/0x30
[  998.661202][   T73] 
[  998.663110][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  998.663110][   T73]      netdev_get_by_index+0x5e/0x80
[  998.663110][   T73]      fib6_nh_init+0x3d8/0x1580
[  998.663110][   T73]      ip6_route_info_create+0xf18/0x17d0
[  998.663110][   T73]      ip6_route_add+0x1c/0x140
[  998.663110][   T73]      addrconf_prefix_route+0x2a6/0x430
[  998.663110][   T73]      inet6_addr_add+0x4f8/0xa40
[  998.663110][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  998.663110][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  998.663110][   T73]      netlink_rcv_skb+0x130/0x360
[  998.663110][   T73]      netlink_unicast+0x449/0x710
[  998.663110][   T73]      netlink_sendmsg+0x723/0xbe0
[  998.663110][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  998.663110][   T73]      ___sys_sendmsg+0xee/0x170
[  998.663110][   T73]      __sys_sendmsg+0xcd/0x170
[  998.663110][   T73]      do_syscall_64+0xc6/0x1e0
[  998.663110][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  998.663110][   T73] 
[  998.665502][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  998.665502][   T73]      netdev_get_by_index+0x5e/0x80
[  998.665502][   T73]      fib6_nh_init+0x3d8/0x1580
[  998.665502][   T73]      ip6_route_info_create+0xf18/0x17d0
[  998.665502][   T73]      addrconf_f6i_alloc+0x315/0x560
[  998.665502][   T73]      ipv6_add_addr+0x411/0x2000
[  998.665502][   T73]      inet6_addr_add+0x30e/0xa40
[  998.665502][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  998.665502][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  998.665502][   T73]      netlink_rcv_skb+0x130/0x360
[  998.665502][   T73]      netlink_unicast+0x449/0x710
[  998.665502][   T73]      netlink_sendmsg+0x723/0xbe0
[  998.665502][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  998.665502][   T73]      ___sys_sendmsg+0xee/0x170
[  998.665502][   T73]      __sys_sendmsg+0xcd/0x170
[  998.665502][   T73]      do_syscall_64+0xc6/0x1e0
[  998.665502][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  998.665502][   T73] 
[  998.667488][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  998.667488][   T73]      netdev_get_by_index+0x5e/0x80
[  998.667488][   T73]      fib6_nh_init+0x3d8/0x1580
[  998.667488][   T73]      ip6_route_info_create+0xf18/0x17d0
[  998.667488][   T73]      ip6_route_add+0x1c/0x140
[  998.667488][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  998.667488][   T73]      addrconf_add_dev+0xe2/0x170
[  998.667488][   T73]      inet6_addr_add+0x12f/0xa40
[  998.667488][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  998.667488][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  998.667488][   T73]      netlink_rcv_skb+0x130/0x360
[  998.667488][   T73]      netlink_unicast+0x449/0x710
[  998.667488][   T73]      netlink_sendmsg+0x723/0xbe0
[  998.667488][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  998.667488][   T73]      ___sys_sendmsg+0xee/0x170
[  998.667488][   T73]      __sys_sendmsg+0xcd/0x170
[  998.667488][   T73]      do_syscall_64+0xc6/0x1e0
[  998.667488][   T73] 
[  998.669446][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  998.669446][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  998.669446][   T73]      ipv6_find_idev+0x102/0x170
[  998.669446][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  998.669446][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  998.669446][   T73]      netlink_rcv_skb+0x130/0x360
[  998.669446][   T73]      netlink_unicast+0x449/0x710
[  998.669446][   T73]      netlink_sendmsg+0x723/0xbe0
[  998.669446][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  998.669446][   T73]      ___sys_sendmsg+0xee/0x170
[  998.669446][   T73]      __sys_sendmsg+0xcd/0x170
[  998.669446][   T73]      do_syscall_64+0xc6/0x1e0
[  998.669446][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  998.669446][   T73] 
[  998.670986][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[  998.670986][   T73]      neigh_parms_alloc+0x1e5/0x510
[  998.670986][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  998.670986][   T73]      ipv6_find_idev+0x102/0x170
[  998.670986][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  998.670986][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  998.670986][   T73]      netlink_rcv_skb+0x130/0x360
[  998.670986][   T73]      netlink_unicast+0x449/0x710
[  998.670986][   T73]      netlink_sendmsg+0x723/0xbe0
[  998.670986][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  998.670986][   T73]      ___sys_sendmsg+0xee/0x170
[  998.670986][   T73]      __sys_sendmsg+0xcd/0x170
[  998.670986][   T73]      do_syscall_64+0xc6/0x1e0
[  998.670986][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  998.670986][   T73] 
[  998.672676][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[  998.672944][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  998.672944][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[  998.672944][   T73]      ip6_validate_gw+0x3f7/0x7b0
[  998.672944][   T73]      fib6_nh_init+0xa22/0x1580
[  998.672944][   T73]      ip6_route_info_create+0xf18/0x17d0
[  998.672944][   T73]      ip6_route_add+0x1c/0x140
[  998.672944][   T73]      inet6_rtm_newroute+0x104/0x110
[  998.672944][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  998.672944][   T73]      netlink_rcv_skb+0x130/0x360
[  998.672944][   T73]      netlink_unicast+0x449/0x710
[  998.672944][   T73]      netlink_sendmsg+0x723/0xbe0
[  998.672944][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  998.672944][   T73]      ___sys_sendmsg+0xee/0x170
[  998.672944][   T73]      __sys_sendmsg+0xcd/0x170
[  998.672944][   T73]      do_syscall_64+0xc6/0x1e0
[  998.672944][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  998.672944][   T73] 
[  998.674887][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[  998.674887][   T73]      dst_init+0x84/0x4a0
[  998.674887][   T73]      dst_alloc+0x97/0x150
[  998.674887][   T73]      ip6_dst_alloc+0x23/0x90
[  998.674887][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[  998.674887][   T73]      ip6_pol_route+0x56f/0x840
[  998.674887][   T73]      fib6_rule_lookup+0x456/0x630
[  998.674887][   T73]      ip6_route_input+0x59c/0xa50
[  998.674887][   T73]      ipv6_rcv+0x397/0x810
[  998.674887][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[  998.674887][   T73]      process_backlog+0x101/0x620
[  998.674887][   T73]      __napi_poll.constprop.0+0xa2/0x460
[  998.674887][   T73]      net_rx_action+0x495/0xbe0
[  998.674887][   T73]      __do_softirq+0x1b5/0x7f6
[  998.674887][   T73] 
[  998.676645][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  998.676645][   T73]      netdev_get_by_index+0x5e/0x80
[  998.676645][   T73]      fib6_nh_init+0x3d8/0x1580
[  998.676645][   T73]      ip6_route_info_create+0xf18/0x17d0
[  998.676645][   T73]      ip6_route_add+0x1c/0x140
[  998.676645][   T73]      addrconf_prefix_route+0x2a6/0x430
[  998.676645][   T73]      inet6_addr_add+0x4f8/0xa40
[  998.676645][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  998.676645][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  998.676645][   T73]      netlink_rcv_skb+0x130/0x360
[  998.676645][   T73]      netlink_unicast+0x449/0x710
[  998.676645][   T73]      netlink_sendmsg+0x723/0xbe0
[  998.676645][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  998.676645][   T73]      ___sys_sendmsg+0xee/0x170
[  998.676645][   T73]      __sys_sendmsg+0xcd/0x170
[  998.676645][   T73]      do_syscall_64+0xc6/0x1e0
[  998.676645][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  998.676645][   T73] 
[  998.678877][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  998.678877][   T73]      netdev_get_by_index+0x5e/0x80
[  998.678877][   T73]      fib6_nh_init+0x3d8/0x1580
[  998.678877][   T73]      ip6_route_info_create+0xf18/0x17d0
[  998.678877][   T73]      addrconf_f6i_alloc+0x315/0x560
[  998.678877][   T73]      ipv6_add_addr+0x411/0x2000
[  998.678877][   T73]      inet6_addr_add+0x30e/0xa40
[  998.678877][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  998.678877][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  998.678877][   T73]      netlink_rcv_skb+0x130/0x360
[  998.678877][   T73]      netlink_unicast+0x449/0x710
[  998.678877][   T73]      netlink_sendmsg+0x723/0xbe0
[  998.678877][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  998.678877][   T73]      ___sys_sendmsg+0xee/0x170
[  998.678877][   T73]      __sys_sendmsg+0xcd/0x170
[  998.678877][   T73]      do_syscall_64+0xc6/0x1e0
[  998.678877][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  998.678877][   T73] 
[  998.681058][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  998.681058][   T73]      netdev_get_by_index+0x5e/0x80
[  998.681058][   T73]      fib6_nh_init+0x3d8/0x1580
[  998.681058][   T73]      ip6_route_info_create+0xf18/0x17d0
[  998.681058][   T73]      ip6_route_add+0x1c/0x140
[  998.681058][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  998.681058][   T73]      addrconf_add_dev+0xe2/0x170
[  998.681058][   T73]      inet6_addr_add+0x12f/0xa40
[  998.681058][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  998.681058][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  998.681058][   T73]      netlink_rcv_skb+0x130/0x360
[  998.681058][   T73]      netlink_unicast+0x449/0x710
[  998.681058][   T73]      netlink_sendmsg+0x723/0xbe0
[  998.681058][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  998.681058][   T73]      ___sys_sendmsg+0xee/0x170
[  998.681058][   T73]      __sys_sendmsg+0xcd/0x170
[  998.681058][   T73]      do_syscall_64+0xc6/0x1e0
[  998.681058][   T73] 
[  998.683221][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  998.683221][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  998.683221][   T73]      ipv6_find_idev+0x102/0x170
[  998.683221][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  998.683221][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  998.683221][   T73]      netlink_rcv_skb+0x130/0x360
[  998.683221][   T73]      netlink_unicast+0x449/0x710
[  998.683221][   T73]      netlink_sendmsg+0x723/0xbe0
[  998.683221][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  998.683221][   T73]      ___sys_sendmsg+0xee/0x170
[  998.683221][   T73]      __sys_sendmsg+0xcd/0x170
[  998.683221][   T73]      do_syscall_64+0xc6/0x1e0
[  998.683221][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  998.683221][   T73] 
[  998.684850][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[  998.684850][   T73]      neigh_parms_alloc+0x1e5/0x510
[  998.684850][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  998.684850][   T73]      ipv6_find_idev+0x102/0x170
[  998.684850][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  998.684850][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  998.684850][   T73]      netlink_rcv_skb+0x130/0x360
[  998.684850][   T73]      netlink_unicast+0x449/0x710
[  998.684850][   T73]      netlink_sendmsg+0x723/0xbe0
[  998.684850][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  998.684850][   T73]      ___sys_sendmsg+0xee/0x170
[  998.684850][   T73]      __sys_sendmsg+0xcd/0x170
[  998.684850][   T73]      do_syscall_64+0xc6/0x1e0
[  998.684850][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  998.684850][   T73] 
[  998.686672][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[  998.686941][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  998.686941][   T73]      netdev_get_by_index+0x5e/0x80
[  998.686941][   T73]      fib6_nh_init+0x3d8/0x1580
[  998.686941][   T73]      ip6_route_info_create+0xf18/0x17d0
[  998.686941][   T73]      addrconf_f6i_alloc+0x265/0x560
[  998.686941][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[  998.686941][   T73]      addrconf_join_anycast+0x1c0/0x220
[  998.686941][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[  998.686941][   T73]      addrconf_dad_completed+0x12b/0xe20
[  998.686941][   T73]      addrconf_dad_begin+0x310/0x670
[  998.686941][   T73]      addrconf_dad_work+0x10b/0xab0
[  998.686941][   T73]      process_one_work+0x84d/0x18a0
[  998.686941][   T73]      worker_thread+0x587/0xd30
[  998.686941][   T73]      kthread+0x28a/0x350
[  998.686941][   T73]      ret_from_fork+0x31/0x70
[  998.686941][   T73]      ret_from_fork_asm+0x1a/0x30
[  998.686941][   T73] 
[  998.688970][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  998.688970][   T73]      netdev_get_by_index+0x5e/0x80
[  998.688970][   T73]      fib6_nh_init+0x3d8/0x1580
[  998.688970][   T73]      ip6_route_info_create+0xf18/0x17d0
[  998.688970][   T73]      ip6_route_add+0x1c/0x140
[  998.688970][   T73]      addrconf_prefix_route+0x2a6/0x430
[  998.688970][   T73]      inet6_addr_add+0x4f8/0xa40
[  998.688970][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  998.688970][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  998.688970][   T73]      netlink_rcv_skb+0x130/0x360
[  998.688970][   T73]      netlink_unicast+0x449/0x710
[  998.688970][   T73]      netlink_sendmsg+0x723/0xbe0
[  998.688970][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  998.688970][   T73]      ___sys_sendmsg+0xee/0x170
[  998.688970][   T73]      __sys_sendmsg+0xcd/0x170
[  998.688970][   T73]      do_syscall_64+0xc6/0x1e0
[  998.688970][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  998.688970][   T73] 
[  998.691137][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  998.691137][   T73]      netdev_get_by_index+0x5e/0x80
[  998.691137][   T73]      fib6_nh_init+0x3d8/0x1580
[  998.691137][   T73]      ip6_route_info_create+0xf18/0x17d0
[  998.691137][   T73]      addrconf_f6i_alloc+0x315/0x560
[  998.691137][   T73]      ipv6_add_addr+0x411/0x2000
[  998.691137][   T73]      inet6_addr_add+0x30e/0xa40
[  998.691137][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  998.691137][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  998.691137][   T73]      netlink_rcv_skb+0x130/0x360
[  998.691137][   T73]      netlink_unicast+0x449/0x710
[  998.691137][   T73]      netlink_sendmsg+0x723/0xbe0
[  998.691137][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  998.691137][   T73]      ___sys_sendmsg+0xee/0x170
[  998.691137][   T73]      __sys_sendmsg+0xcd/0x170
[  998.691137][   T73]      do_syscall_64+0xc6/0x1e0
[  998.691137][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  998.691137][   T73] 
[  998.693294][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  998.693294][   T73]      netdev_get_by_index+0x5e/0x80
[  998.693294][   T73]      fib6_nh_init+0x3d8/0x1580
[  998.693294][   T73]      ip6_route_info_create+0xf18/0x17d0
[  998.693294][   T73]      ip6_route_add+0x1c/0x140
[  998.693294][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[  998.693294][   T73]      addrconf_add_dev+0xe2/0x170
[  998.693294][   T73]      inet6_addr_add+0x12f/0xa40
[  998.693294][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[  998.693294][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  998.693294][   T73]      netlink_rcv_skb+0x130/0x360
[  998.693294][   T73]      netlink_unicast+0x449/0x710
[  998.693294][   T73]      netlink_sendmsg+0x723/0xbe0
[  998.693294][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  998.693294][   T73]      ___sys_sendmsg+0xee/0x170
[  998.693294][   T73]      __sys_sendmsg+0xcd/0x170
[  998.693294][   T73]      do_syscall_64+0xc6/0x1e0
[  998.693294][   T73] 
[  998.695413][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  998.695413][   T73]      ipv6_add_dev+0x3ba/0x11c0
[  998.695413][   T73]      ipv6_find_idev+0x102/0x170
[  998.695413][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  998.695413][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  998.695413][   T73]      netlink_rcv_skb+0x130/0x360
[  998.695413][   T73]      netlink_unicast+0x449/0x710
[  998.695413][   T73]      netlink_sendmsg+0x723/0xbe0
[  998.695413][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  998.695413][   T73]      ___sys_sendmsg+0xee/0x170
[  998.695413][   T73]      __sys_sendmsg+0xcd/0x170
[  998.695413][   T73]      do_syscall_64+0xc6/0x1e0
[  998.695413][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  998.695413][   T73] 
[  998.697067][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[  998.697067][   T73]      neigh_parms_alloc+0x1e5/0x510
[  998.697067][   T73]      ipv6_add_dev+0x2fe/0x11c0
[  998.697067][   T73]      ipv6_find_idev+0x102/0x170
[  998.697067][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[  998.697067][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[  998.697067][   T73]      netlink_rcv_skb+0x130/0x360
[  998.697067][   T73]      netlink_unicast+0x449/0x710
[  998.697067][   T73]      netlink_sendmsg+0x723/0xbe0
[  998.697067][   T73]      ____sys_sendmsg+0x7b2/0xa10
[  998.697067][   T73]      ___sys_sendmsg+0xee/0x170
[  998.697067][   T73]      __sys_sendmsg+0xcd/0x170
[  998.697067][   T73]      do_syscall_64+0xc6/0x1e0
[  998.697067][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[  998.697067][   T73] 
[ 1008.711744][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1008.712147][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1008.712147][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1008.712147][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1008.712147][   T73]      fib6_nh_init+0xa22/0x1580
[ 1008.712147][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1008.712147][   T73]      ip6_route_add+0x1c/0x140
[ 1008.712147][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1008.712147][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1008.712147][   T73]      netlink_rcv_skb+0x130/0x360
[ 1008.712147][   T73]      netlink_unicast+0x449/0x710
[ 1008.712147][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1008.712147][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1008.712147][   T73]      ___sys_sendmsg+0xee/0x170
[ 1008.712147][   T73]      __sys_sendmsg+0xcd/0x170
[ 1008.712147][   T73]      do_syscall_64+0xc6/0x1e0
[ 1008.712147][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1008.712147][   T73] 
[ 1008.714073][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1008.714073][   T73]      dst_init+0x84/0x4a0
[ 1008.714073][   T73]      dst_alloc+0x97/0x150
[ 1008.714073][   T73]      ip6_dst_alloc+0x23/0x90
[ 1008.714073][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1008.714073][   T73]      ip6_pol_route+0x56f/0x840
[ 1008.714073][   T73]      fib6_rule_lookup+0x456/0x630
[ 1008.714073][   T73]      ip6_route_input+0x59c/0xa50
[ 1008.714073][   T73]      ipv6_rcv+0x397/0x810
[ 1008.714073][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1008.714073][   T73]      process_backlog+0x101/0x620
[ 1008.714073][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1008.714073][   T73]      net_rx_action+0x495/0xbe0
[ 1008.714073][   T73]      __do_softirq+0x1b5/0x7f6
[ 1008.714073][   T73] 
[ 1008.715704][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1008.715704][   T73]      netdev_get_by_index+0x5e/0x80
[ 1008.715704][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1008.715704][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1008.715704][   T73]      ip6_route_add+0x1c/0x140
[ 1008.715704][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1008.715704][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1008.715704][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1008.715704][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1008.715704][   T73]      netlink_rcv_skb+0x130/0x360
[ 1008.715704][   T73]      netlink_unicast+0x449/0x710
[ 1008.715704][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1008.715704][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1008.715704][   T73]      ___sys_sendmsg+0xee/0x170
[ 1008.715704][   T73]      __sys_sendmsg+0xcd/0x170
[ 1008.715704][   T73]      do_syscall_64+0xc6/0x1e0
[ 1008.715704][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1008.715704][   T73] 
[ 1008.717691][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1008.717691][   T73]      netdev_get_by_index+0x5e/0x80
[ 1008.717691][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1008.717691][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1008.717691][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1008.717691][   T73]      ipv6_add_addr+0x411/0x2000
[ 1008.717691][   T73]      inet6_addr_add+0x30e/0xa40
[ 1008.717691][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1008.717691][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1008.717691][   T73]      netlink_rcv_skb+0x130/0x360
[ 1008.717691][   T73]      netlink_unicast+0x449/0x710
[ 1008.717691][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1008.717691][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1008.717691][   T73]      ___sys_sendmsg+0xee/0x170
[ 1008.717691][   T73]      __sys_sendmsg+0xcd/0x170
[ 1008.717691][   T73]      do_syscall_64+0xc6/0x1e0
[ 1008.717691][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1008.717691][   T73] 
[ 1008.720220][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1008.720220][   T73]      netdev_get_by_index+0x5e/0x80
[ 1008.720220][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1008.720220][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1008.720220][   T73]      ip6_route_add+0x1c/0x140
[ 1008.720220][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1008.720220][   T73]      addrconf_add_dev+0xe2/0x170
[ 1008.720220][   T73]      inet6_addr_add+0x12f/0xa40
[ 1008.720220][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1008.720220][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1008.720220][   T73]      netlink_rcv_skb+0x130/0x360
[ 1008.720220][   T73]      netlink_unicast+0x449/0x710
[ 1008.720220][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1008.720220][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1008.720220][   T73]      ___sys_sendmsg+0xee/0x170
[ 1008.720220][   T73]      __sys_sendmsg+0xcd/0x170
[ 1008.720220][   T73]      do_syscall_64+0xc6/0x1e0
[ 1008.720220][   T73] 
[ 1008.722220][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1008.722220][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1008.722220][   T73]      ipv6_find_idev+0x102/0x170
[ 1008.722220][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1008.722220][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1008.722220][   T73]      netlink_rcv_skb+0x130/0x360
[ 1008.722220][   T73]      netlink_unicast+0x449/0x710
[ 1008.722220][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1008.722220][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1008.722220][   T73]      ___sys_sendmsg+0xee/0x170
[ 1008.722220][   T73]      __sys_sendmsg+0xcd/0x170
[ 1008.722220][   T73]      do_syscall_64+0xc6/0x1e0
[ 1008.722220][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1008.722220][   T73] 
[ 1008.723778][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1008.723778][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1008.723778][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1008.723778][   T73]      ipv6_find_idev+0x102/0x170
[ 1008.723778][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1008.723778][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1008.723778][   T73]      netlink_rcv_skb+0x130/0x360
[ 1008.723778][   T73]      netlink_unicast+0x449/0x710
[ 1008.723778][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1008.723778][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1008.723778][   T73]      ___sys_sendmsg+0xee/0x170
[ 1008.723778][   T73]      __sys_sendmsg+0xcd/0x170
[ 1008.723778][   T73]      do_syscall_64+0xc6/0x1e0
[ 1008.723778][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1008.723778][   T73] 
[ 1008.725499][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1008.725785][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1008.725785][   T73]      netdev_get_by_index+0x5e/0x80
[ 1008.725785][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1008.725785][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1008.725785][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1008.725785][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1008.725785][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1008.725785][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1008.725785][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1008.725785][   T73]      addrconf_dad_begin+0x310/0x670
[ 1008.725785][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1008.725785][   T73]      process_one_work+0x84d/0x18a0
[ 1008.725785][   T73]      worker_thread+0x587/0xd30
[ 1008.725785][   T73]      kthread+0x28a/0x350
[ 1008.725785][   T73]      ret_from_fork+0x31/0x70
[ 1008.725785][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1008.725785][   T73] 
[ 1008.727710][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1008.727710][   T73]      netdev_get_by_index+0x5e/0x80
[ 1008.727710][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1008.727710][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1008.727710][   T73]      ip6_route_add+0x1c/0x140
[ 1008.727710][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1008.727710][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1008.727710][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1008.727710][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1008.727710][   T73]      netlink_rcv_skb+0x130/0x360
[ 1008.727710][   T73]      netlink_unicast+0x449/0x710
[ 1008.727710][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1008.727710][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1008.727710][   T73]      ___sys_sendmsg+0xee/0x170
[ 1008.727710][   T73]      __sys_sendmsg+0xcd/0x170
[ 1008.727710][   T73]      do_syscall_64+0xc6/0x1e0
[ 1008.727710][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1008.727710][   T73] 
[ 1008.730123][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1008.730123][   T73]      netdev_get_by_index+0x5e/0x80
[ 1008.730123][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1008.730123][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1008.730123][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1008.730123][   T73]      ipv6_add_addr+0x411/0x2000
[ 1008.730123][   T73]      inet6_addr_add+0x30e/0xa40
[ 1008.730123][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1008.730123][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1008.730123][   T73]      netlink_rcv_skb+0x130/0x360
[ 1008.730123][   T73]      netlink_unicast+0x449/0x710
[ 1008.730123][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1008.730123][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1008.730123][   T73]      ___sys_sendmsg+0xee/0x170
[ 1008.730123][   T73]      __sys_sendmsg+0xcd/0x170
[ 1008.730123][   T73]      do_syscall_64+0xc6/0x1e0
[ 1008.730123][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1008.730123][   T73] 
[ 1008.732149][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1008.732149][   T73]      netdev_get_by_index+0x5e/0x80
[ 1008.732149][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1008.732149][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1008.732149][   T73]      ip6_route_add+0x1c/0x140
[ 1008.732149][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1008.732149][   T73]      addrconf_add_dev+0xe2/0x170
[ 1008.732149][   T73]      inet6_addr_add+0x12f/0xa40
[ 1008.732149][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1008.732149][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1008.732149][   T73]      netlink_rcv_skb+0x130/0x360
[ 1008.732149][   T73]      netlink_unicast+0x449/0x710
[ 1008.732149][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1008.732149][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1008.732149][   T73]      ___sys_sendmsg+0xee/0x170
[ 1008.732149][   T73]      __sys_sendmsg+0xcd/0x170
[ 1008.732149][   T73]      do_syscall_64+0xc6/0x1e0
[ 1008.732149][   T73] 
[ 1008.734100][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1008.734100][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1008.734100][   T73]      ipv6_find_idev+0x102/0x170
[ 1008.734100][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1008.734100][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1008.734100][   T73]      netlink_rcv_skb+0x130/0x360
[ 1008.734100][   T73]      netlink_unicast+0x449/0x710
[ 1008.734100][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1008.734100][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1008.734100][   T73]      ___sys_sendmsg+0xee/0x170
[ 1008.734100][   T73]      __sys_sendmsg+0xcd/0x170
[ 1008.734100][   T73]      do_syscall_64+0xc6/0x1e0
[ 1008.734100][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1008.734100][   T73] 
[ 1008.735630][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1008.735630][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1008.735630][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1008.735630][   T73]      ipv6_find_idev+0x102/0x170
[ 1008.735630][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1008.735630][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1008.735630][   T73]      netlink_rcv_skb+0x130/0x360
[ 1008.735630][   T73]      netlink_unicast+0x449/0x710
[ 1008.735630][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1008.735630][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1008.735630][   T73]      ___sys_sendmsg+0xee/0x170
[ 1008.735630][   T73]      __sys_sendmsg+0xcd/0x170
[ 1008.735630][   T73]      do_syscall_64+0xc6/0x1e0
[ 1008.735630][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1008.735630][   T73] 
[ 1008.737310][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1008.737596][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1008.737596][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1008.737596][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1008.737596][   T73]      fib6_nh_init+0xa22/0x1580
[ 1008.737596][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1008.737596][   T73]      ip6_route_add+0x1c/0x140
[ 1008.737596][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1008.737596][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1008.737596][   T73]      netlink_rcv_skb+0x130/0x360
[ 1008.737596][   T73]      netlink_unicast+0x449/0x710
[ 1008.737596][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1008.737596][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1008.737596][   T73]      ___sys_sendmsg+0xee/0x170
[ 1008.737596][   T73]      __sys_sendmsg+0xcd/0x170
[ 1008.737596][   T73]      do_syscall_64+0xc6/0x1e0
[ 1008.737596][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1008.737596][   T73] 
[ 1008.739609][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1008.739609][   T73]      dst_init+0x84/0x4a0
[ 1008.739609][   T73]      dst_alloc+0x97/0x150
[ 1008.739609][   T73]      ip6_dst_alloc+0x23/0x90
[ 1008.739609][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1008.739609][   T73]      ip6_pol_route+0x56f/0x840
[ 1008.739609][   T73]      fib6_rule_lookup+0x456/0x630
[ 1008.739609][   T73]      ip6_route_input+0x59c/0xa50
[ 1008.739609][   T73]      ipv6_rcv+0x397/0x810
[ 1008.739609][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1008.739609][   T73]      process_backlog+0x101/0x620
[ 1008.739609][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1008.739609][   T73]      net_rx_action+0x495/0xbe0
[ 1008.739609][   T73]      __do_softirq+0x1b5/0x7f6
[ 1008.739609][   T73] 
[ 1008.741507][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1008.741507][   T73]      netdev_get_by_index+0x5e/0x80
[ 1008.741507][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1008.741507][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1008.741507][   T73]      ip6_route_add+0x1c/0x140
[ 1008.741507][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1008.741507][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1008.741507][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1008.741507][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1008.741507][   T73]      netlink_rcv_skb+0x130/0x360
[ 1008.741507][   T73]      netlink_unicast+0x449/0x710
[ 1008.741507][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1008.741507][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1008.741507][   T73]      ___sys_sendmsg+0xee/0x170
[ 1008.741507][   T73]      __sys_sendmsg+0xcd/0x170
[ 1008.741507][   T73]      do_syscall_64+0xc6/0x1e0
[ 1008.741507][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1008.741507][   T73] 
[ 1008.743765][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1008.743765][   T73]      netdev_get_by_index+0x5e/0x80
[ 1008.743765][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1008.743765][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1008.743765][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1008.743765][   T73]      ipv6_add_addr+0x411/0x2000
[ 1008.743765][   T73]      inet6_addr_add+0x30e/0xa40
[ 1008.743765][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1008.743765][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1008.743765][   T73]      netlink_rcv_skb+0x130/0x360
[ 1008.743765][   T73]      netlink_unicast+0x449/0x710
[ 1008.743765][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1008.743765][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1008.743765][   T73]      ___sys_sendmsg+0xee/0x170
[ 1008.743765][   T73]      __sys_sendmsg+0xcd/0x170
[ 1008.743765][   T73]      do_syscall_64+0xc6/0x1e0
[ 1008.743765][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1008.743765][   T73] 
[ 1008.746037][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1008.746037][   T73]      netdev_get_by_index+0x5e/0x80
[ 1008.746037][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1008.746037][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1008.746037][   T73]      ip6_route_add+0x1c/0x140
[ 1008.746037][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1008.746037][   T73]      addrconf_add_dev+0xe2/0x170
[ 1008.746037][   T73]      inet6_addr_add+0x12f/0xa40
[ 1008.746037][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1008.746037][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1008.746037][   T73]      netlink_rcv_skb+0x130/0x360
[ 1008.746037][   T73]      netlink_unicast+0x449/0x710
[ 1008.746037][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1008.746037][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1008.746037][   T73]      ___sys_sendmsg+0xee/0x170
[ 1008.746037][   T73]      __sys_sendmsg+0xcd/0x170
[ 1008.746037][   T73]      do_syscall_64+0xc6/0x1e0
[ 1008.746037][   T73] 
[ 1008.748254][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1008.748254][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1008.748254][   T73]      ipv6_find_idev+0x102/0x170
[ 1008.748254][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1008.748254][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1008.748254][   T73]      netlink_rcv_skb+0x130/0x360
[ 1008.748254][   T73]      netlink_unicast+0x449/0x710
[ 1008.748254][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1008.748254][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1008.748254][   T73]      ___sys_sendmsg+0xee/0x170
[ 1008.748254][   T73]      __sys_sendmsg+0xcd/0x170
[ 1008.748254][   T73]      do_syscall_64+0xc6/0x1e0
[ 1008.748254][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1008.748254][   T73] 
[ 1008.749996][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1008.749996][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1008.749996][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1008.749996][   T73]      ipv6_find_idev+0x102/0x170
[ 1008.749996][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1008.749996][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1008.749996][   T73]      netlink_rcv_skb+0x130/0x360
[ 1008.749996][   T73]      netlink_unicast+0x449/0x710
[ 1008.749996][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1008.749996][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1008.749996][   T73]      ___sys_sendmsg+0xee/0x170
[ 1008.749996][   T73]      __sys_sendmsg+0xcd/0x170
[ 1008.749996][   T73]      do_syscall_64+0xc6/0x1e0
[ 1008.749996][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1008.749996][   T73] 
[ 1008.751915][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1008.752238][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1008.752238][   T73]      netdev_get_by_index+0x5e/0x80
[ 1008.752238][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1008.752238][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1008.752238][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1008.752238][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1008.752238][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1008.752238][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1008.752238][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1008.752238][   T73]      addrconf_dad_begin+0x310/0x670
[ 1008.752238][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1008.752238][   T73]      process_one_work+0x84d/0x18a0
[ 1008.752238][   T73]      worker_thread+0x587/0xd30
[ 1008.752238][   T73]      kthread+0x28a/0x350
[ 1008.752238][   T73]      ret_from_fork+0x31/0x70
[ 1008.752238][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1008.752238][   T73] 
[ 1008.754309][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1008.754309][   T73]      netdev_get_by_index+0x5e/0x80
[ 1008.754309][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1008.754309][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1008.754309][   T73]      ip6_route_add+0x1c/0x140
[ 1008.754309][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1008.754309][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1008.754309][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1008.754309][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1008.754309][   T73]      netlink_rcv_skb+0x130/0x360
[ 1008.754309][   T73]      netlink_unicast+0x449/0x710
[ 1008.754309][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1008.754309][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1008.754309][   T73]      ___sys_sendmsg+0xee/0x170
[ 1008.754309][   T73]      __sys_sendmsg+0xcd/0x170
[ 1008.754309][   T73]      do_syscall_64+0xc6/0x1e0
[ 1008.754309][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1008.754309][   T73] 
[ 1008.756567][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1008.756567][   T73]      netdev_get_by_index+0x5e/0x80
[ 1008.756567][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1008.756567][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1008.756567][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1008.756567][   T73]      ipv6_add_addr+0x411/0x2000
[ 1008.756567][   T73]      inet6_addr_add+0x30e/0xa40
[ 1008.756567][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1008.756567][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1008.756567][   T73]      netlink_rcv_skb+0x130/0x360
[ 1008.756567][   T73]      netlink_unicast+0x449/0x710
[ 1008.756567][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1008.756567][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1008.756567][   T73]      ___sys_sendmsg+0xee/0x170
[ 1008.756567][   T73]      __sys_sendmsg+0xcd/0x170
[ 1008.756567][   T73]      do_syscall_64+0xc6/0x1e0
[ 1008.756567][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1008.756567][   T73] 
[ 1008.758826][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1008.758826][   T73]      netdev_get_by_index+0x5e/0x80
[ 1008.758826][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1008.758826][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1008.758826][   T73]      ip6_route_add+0x1c/0x140
[ 1008.758826][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1008.758826][   T73]      addrconf_add_dev+0xe2/0x170
[ 1008.758826][   T73]      inet6_addr_add+0x12f/0xa40
[ 1008.758826][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1008.758826][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1008.758826][   T73]      netlink_rcv_skb+0x130/0x360
[ 1008.758826][   T73]      netlink_unicast+0x449/0x710
[ 1008.758826][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1008.758826][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1008.758826][   T73]      ___sys_sendmsg+0xee/0x170
[ 1008.758826][   T73]      __sys_sendmsg+0xcd/0x170
[ 1008.758826][   T73]      do_syscall_64+0xc6/0x1e0
[ 1008.758826][   T73] 
[ 1008.761121][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1008.761121][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1008.761121][   T73]      ipv6_find_idev+0x102/0x170
[ 1008.761121][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1008.761121][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1008.761121][   T73]      netlink_rcv_skb+0x130/0x360
[ 1008.761121][   T73]      netlink_unicast+0x449/0x710
[ 1008.761121][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1008.761121][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1008.761121][   T73]      ___sys_sendmsg+0xee/0x170
[ 1008.761121][   T73]      __sys_sendmsg+0xcd/0x170
[ 1008.761121][   T73]      do_syscall_64+0xc6/0x1e0
[ 1008.761121][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1008.761121][   T73] 
[ 1008.762835][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1008.762835][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1008.762835][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1008.762835][   T73]      ipv6_find_idev+0x102/0x170
[ 1008.762835][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1008.762835][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1008.762835][   T73]      netlink_rcv_skb+0x130/0x360
[ 1008.762835][   T73]      netlink_unicast+0x449/0x710
[ 1008.762835][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1008.762835][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1008.762835][   T73]      ___sys_sendmsg+0xee/0x170
[ 1008.762835][   T73]      __sys_sendmsg+0xcd/0x170
[ 1008.762835][   T73]      do_syscall_64+0xc6/0x1e0
[ 1008.762835][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1008.762835][   T73] 
[ 1018.863705][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1018.864104][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1018.864104][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1018.864104][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1018.864104][   T73]      fib6_nh_init+0xa22/0x1580
[ 1018.864104][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1018.864104][   T73]      ip6_route_add+0x1c/0x140
[ 1018.864104][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1018.864104][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1018.864104][   T73]      netlink_rcv_skb+0x130/0x360
[ 1018.864104][   T73]      netlink_unicast+0x449/0x710
[ 1018.864104][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1018.864104][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1018.864104][   T73]      ___sys_sendmsg+0xee/0x170
[ 1018.864104][   T73]      __sys_sendmsg+0xcd/0x170
[ 1018.864104][   T73]      do_syscall_64+0xc6/0x1e0
[ 1018.864104][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1018.864104][   T73] 
[ 1018.866035][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1018.866035][   T73]      dst_init+0x84/0x4a0
[ 1018.866035][   T73]      dst_alloc+0x97/0x150
[ 1018.866035][   T73]      ip6_dst_alloc+0x23/0x90
[ 1018.866035][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1018.866035][   T73]      ip6_pol_route+0x56f/0x840
[ 1018.866035][   T73]      fib6_rule_lookup+0x456/0x630
[ 1018.866035][   T73]      ip6_route_input+0x59c/0xa50
[ 1018.866035][   T73]      ipv6_rcv+0x397/0x810
[ 1018.866035][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1018.866035][   T73]      process_backlog+0x101/0x620
[ 1018.866035][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1018.866035][   T73]      net_rx_action+0x495/0xbe0
[ 1018.866035][   T73]      __do_softirq+0x1b5/0x7f6
[ 1018.866035][   T73] 
[ 1018.867664][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1018.867664][   T73]      netdev_get_by_index+0x5e/0x80
[ 1018.867664][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1018.867664][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1018.867664][   T73]      ip6_route_add+0x1c/0x140
[ 1018.867664][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1018.867664][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1018.867664][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1018.867664][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1018.867664][   T73]      netlink_rcv_skb+0x130/0x360
[ 1018.867664][   T73]      netlink_unicast+0x449/0x710
[ 1018.867664][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1018.867664][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1018.867664][   T73]      ___sys_sendmsg+0xee/0x170
[ 1018.867664][   T73]      __sys_sendmsg+0xcd/0x170
[ 1018.867664][   T73]      do_syscall_64+0xc6/0x1e0
[ 1018.867664][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1018.867664][   T73] 
[ 1018.869648][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1018.869648][   T73]      netdev_get_by_index+0x5e/0x80
[ 1018.869648][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1018.869648][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1018.869648][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1018.869648][   T73]      ipv6_add_addr+0x411/0x2000
[ 1018.869648][   T73]      inet6_addr_add+0x30e/0xa40
[ 1018.869648][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1018.869648][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1018.869648][   T73]      netlink_rcv_skb+0x130/0x360
[ 1018.869648][   T73]      netlink_unicast+0x449/0x710
[ 1018.869648][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1018.869648][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1018.869648][   T73]      ___sys_sendmsg+0xee/0x170
[ 1018.869648][   T73]      __sys_sendmsg+0xcd/0x170
[ 1018.869648][   T73]      do_syscall_64+0xc6/0x1e0
[ 1018.869648][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1018.869648][   T73] 
[ 1018.871649][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1018.871649][   T73]      netdev_get_by_index+0x5e/0x80
[ 1018.871649][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1018.871649][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1018.871649][   T73]      ip6_route_add+0x1c/0x140
[ 1018.871649][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1018.871649][   T73]      addrconf_add_dev+0xe2/0x170
[ 1018.871649][   T73]      inet6_addr_add+0x12f/0xa40
[ 1018.871649][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1018.871649][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1018.871649][   T73]      netlink_rcv_skb+0x130/0x360
[ 1018.871649][   T73]      netlink_unicast+0x449/0x710
[ 1018.871649][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1018.871649][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1018.871649][   T73]      ___sys_sendmsg+0xee/0x170
[ 1018.871649][   T73]      __sys_sendmsg+0xcd/0x170
[ 1018.871649][   T73]      do_syscall_64+0xc6/0x1e0
[ 1018.871649][   T73] 
[ 1018.873591][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1018.873591][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1018.873591][   T73]      ipv6_find_idev+0x102/0x170
[ 1018.873591][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1018.873591][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1018.873591][   T73]      netlink_rcv_skb+0x130/0x360
[ 1018.873591][   T73]      netlink_unicast+0x449/0x710
[ 1018.873591][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1018.873591][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1018.873591][   T73]      ___sys_sendmsg+0xee/0x170
[ 1018.873591][   T73]      __sys_sendmsg+0xcd/0x170
[ 1018.873591][   T73]      do_syscall_64+0xc6/0x1e0
[ 1018.873591][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1018.873591][   T73] 
[ 1018.875124][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1018.875124][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1018.875124][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1018.875124][   T73]      ipv6_find_idev+0x102/0x170
[ 1018.875124][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1018.875124][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1018.875124][   T73]      netlink_rcv_skb+0x130/0x360
[ 1018.875124][   T73]      netlink_unicast+0x449/0x710
[ 1018.875124][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1018.875124][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1018.875124][   T73]      ___sys_sendmsg+0xee/0x170
[ 1018.875124][   T73]      __sys_sendmsg+0xcd/0x170
[ 1018.875124][   T73]      do_syscall_64+0xc6/0x1e0
[ 1018.875124][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1018.875124][   T73] 
[ 1018.876841][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1018.877117][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1018.877117][   T73]      netdev_get_by_index+0x5e/0x80
[ 1018.877117][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1018.877117][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1018.877117][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1018.877117][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1018.877117][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1018.877117][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1018.877117][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1018.877117][   T73]      addrconf_dad_begin+0x310/0x670
[ 1018.877117][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1018.877117][   T73]      process_one_work+0x84d/0x18a0
[ 1018.877117][   T73]      worker_thread+0x587/0xd30
[ 1018.877117][   T73]      kthread+0x28a/0x350
[ 1018.877117][   T73]      ret_from_fork+0x31/0x70
[ 1018.877117][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1018.877117][   T73] 
[ 1018.879031][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1018.879031][   T73]      netdev_get_by_index+0x5e/0x80
[ 1018.879031][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1018.879031][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1018.879031][   T73]      ip6_route_add+0x1c/0x140
[ 1018.879031][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1018.879031][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1018.879031][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1018.879031][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1018.879031][   T73]      netlink_rcv_skb+0x130/0x360
[ 1018.879031][   T73]      netlink_unicast+0x449/0x710
[ 1018.879031][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1018.879031][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1018.879031][   T73]      ___sys_sendmsg+0xee/0x170
[ 1018.879031][   T73]      __sys_sendmsg+0xcd/0x170
[ 1018.879031][   T73]      do_syscall_64+0xc6/0x1e0
[ 1018.879031][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1018.879031][   T73] 
[ 1018.881030][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1018.881030][   T73]      netdev_get_by_index+0x5e/0x80
[ 1018.881030][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1018.881030][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1018.881030][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1018.881030][   T73]      ipv6_add_addr+0x411/0x2000
[ 1018.881030][   T73]      inet6_addr_add+0x30e/0xa40
[ 1018.881030][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1018.881030][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1018.881030][   T73]      netlink_rcv_skb+0x130/0x360
[ 1018.881030][   T73]      netlink_unicast+0x449/0x710
[ 1018.881030][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1018.881030][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1018.881030][   T73]      ___sys_sendmsg+0xee/0x170
[ 1018.881030][   T73]      __sys_sendmsg+0xcd/0x170
[ 1018.881030][   T73]      do_syscall_64+0xc6/0x1e0
[ 1018.881030][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1018.881030][   T73] 
[ 1018.883037][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1018.883037][   T73]      netdev_get_by_index+0x5e/0x80
[ 1018.883037][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1018.883037][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1018.883037][   T73]      ip6_route_add+0x1c/0x140
[ 1018.883037][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1018.883037][   T73]      addrconf_add_dev+0xe2/0x170
[ 1018.883037][   T73]      inet6_addr_add+0x12f/0xa40
[ 1018.883037][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1018.883037][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1018.883037][   T73]      netlink_rcv_skb+0x130/0x360
[ 1018.883037][   T73]      netlink_unicast+0x449/0x710
[ 1018.883037][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1018.883037][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1018.883037][   T73]      ___sys_sendmsg+0xee/0x170
[ 1018.883037][   T73]      __sys_sendmsg+0xcd/0x170
[ 1018.883037][   T73]      do_syscall_64+0xc6/0x1e0
[ 1018.883037][   T73] 
[ 1018.884988][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1018.884988][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1018.884988][   T73]      ipv6_find_idev+0x102/0x170
[ 1018.884988][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1018.884988][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1018.884988][   T73]      netlink_rcv_skb+0x130/0x360
[ 1018.884988][   T73]      netlink_unicast+0x449/0x710
[ 1018.884988][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1018.884988][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1018.884988][   T73]      ___sys_sendmsg+0xee/0x170
[ 1018.884988][   T73]      __sys_sendmsg+0xcd/0x170
[ 1018.884988][   T73]      do_syscall_64+0xc6/0x1e0
[ 1018.884988][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1018.884988][   T73] 
[ 1018.886550][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1018.886550][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1018.886550][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1018.886550][   T73]      ipv6_find_idev+0x102/0x170
[ 1018.886550][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1018.886550][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1018.886550][   T73]      netlink_rcv_skb+0x130/0x360
[ 1018.886550][   T73]      netlink_unicast+0x449/0x710
[ 1018.886550][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1018.886550][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1018.886550][   T73]      ___sys_sendmsg+0xee/0x170
[ 1018.886550][   T73]      __sys_sendmsg+0xcd/0x170
[ 1018.886550][   T73]      do_syscall_64+0xc6/0x1e0
[ 1018.886550][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1018.886550][   T73] 
[ 1018.888225][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1018.888503][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1018.888503][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1018.888503][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1018.888503][   T73]      fib6_nh_init+0xa22/0x1580
[ 1018.888503][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1018.888503][   T73]      ip6_route_add+0x1c/0x140
[ 1018.888503][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1018.888503][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1018.888503][   T73]      netlink_rcv_skb+0x130/0x360
[ 1018.888503][   T73]      netlink_unicast+0x449/0x710
[ 1018.888503][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1018.888503][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1018.888503][   T73]      ___sys_sendmsg+0xee/0x170
[ 1018.888503][   T73]      __sys_sendmsg+0xcd/0x170
[ 1018.888503][   T73]      do_syscall_64+0xc6/0x1e0
[ 1018.888503][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1018.888503][   T73] 
[ 1018.890524][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1018.890524][   T73]      dst_init+0x84/0x4a0
[ 1018.890524][   T73]      dst_alloc+0x97/0x150
[ 1018.890524][   T73]      ip6_dst_alloc+0x23/0x90
[ 1018.890524][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1018.890524][   T73]      ip6_pol_route+0x56f/0x840
[ 1018.890524][   T73]      fib6_rule_lookup+0x456/0x630
[ 1018.890524][   T73]      ip6_route_input+0x59c/0xa50
[ 1018.890524][   T73]      ipv6_rcv+0x397/0x810
[ 1018.890524][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1018.890524][   T73]      process_backlog+0x101/0x620
[ 1018.890524][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1018.890524][   T73]      net_rx_action+0x495/0xbe0
[ 1018.890524][   T73]      __do_softirq+0x1b5/0x7f6
[ 1018.890524][   T73] 
[ 1018.892355][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1018.892355][   T73]      netdev_get_by_index+0x5e/0x80
[ 1018.892355][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1018.892355][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1018.892355][   T73]      ip6_route_add+0x1c/0x140
[ 1018.892355][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1018.892355][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1018.892355][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1018.892355][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1018.892355][   T73]      netlink_rcv_skb+0x130/0x360
[ 1018.892355][   T73]      netlink_unicast+0x449/0x710
[ 1018.892355][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1018.892355][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1018.892355][   T73]      ___sys_sendmsg+0xee/0x170
[ 1018.892355][   T73]      __sys_sendmsg+0xcd/0x170
[ 1018.892355][   T73]      do_syscall_64+0xc6/0x1e0
[ 1018.892355][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1018.892355][   T73] 
[ 1018.894617][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1018.894617][   T73]      netdev_get_by_index+0x5e/0x80
[ 1018.894617][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1018.894617][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1018.894617][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1018.894617][   T73]      ipv6_add_addr+0x411/0x2000
[ 1018.894617][   T73]      inet6_addr_add+0x30e/0xa40
[ 1018.894617][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1018.894617][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1018.894617][   T73]      netlink_rcv_skb+0x130/0x360
[ 1018.894617][   T73]      netlink_unicast+0x449/0x710
[ 1018.894617][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1018.894617][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1018.894617][   T73]      ___sys_sendmsg+0xee/0x170
[ 1018.894617][   T73]      __sys_sendmsg+0xcd/0x170
[ 1018.894617][   T73]      do_syscall_64+0xc6/0x1e0
[ 1018.894617][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1018.894617][   T73] 
[ 1018.896873][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1018.896873][   T73]      netdev_get_by_index+0x5e/0x80
[ 1018.896873][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1018.896873][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1018.896873][   T73]      ip6_route_add+0x1c/0x140
[ 1018.896873][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1018.896873][   T73]      addrconf_add_dev+0xe2/0x170
[ 1018.896873][   T73]      inet6_addr_add+0x12f/0xa40
[ 1018.896873][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1018.896873][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1018.896873][   T73]      netlink_rcv_skb+0x130/0x360
[ 1018.896873][   T73]      netlink_unicast+0x449/0x710
[ 1018.896873][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1018.896873][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1018.896873][   T73]      ___sys_sendmsg+0xee/0x170
[ 1018.896873][   T73]      __sys_sendmsg+0xcd/0x170
[ 1018.896873][   T73]      do_syscall_64+0xc6/0x1e0
[ 1018.896873][   T73] 
[ 1018.899178][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1018.899178][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1018.899178][   T73]      ipv6_find_idev+0x102/0x170
[ 1018.899178][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1018.899178][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1018.899178][   T73]      netlink_rcv_skb+0x130/0x360
[ 1018.899178][   T73]      netlink_unicast+0x449/0x710
[ 1018.899178][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1018.899178][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1018.899178][   T73]      ___sys_sendmsg+0xee/0x170
[ 1018.899178][   T73]      __sys_sendmsg+0xcd/0x170
[ 1018.899178][   T73]      do_syscall_64+0xc6/0x1e0
[ 1018.899178][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1018.899178][   T73] 
[ 1018.900927][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1018.900927][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1018.900927][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1018.900927][   T73]      ipv6_find_idev+0x102/0x170
[ 1018.900927][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1018.900927][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1018.900927][   T73]      netlink_rcv_skb+0x130/0x360
[ 1018.900927][   T73]      netlink_unicast+0x449/0x710
[ 1018.900927][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1018.900927][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1018.900927][   T73]      ___sys_sendmsg+0xee/0x170
[ 1018.900927][   T73]      __sys_sendmsg+0xcd/0x170
[ 1018.900927][   T73]      do_syscall_64+0xc6/0x1e0
[ 1018.900927][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1018.900927][   T73] 
[ 1018.902859][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1018.903200][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1018.903200][   T73]      netdev_get_by_index+0x5e/0x80
[ 1018.903200][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1018.903200][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1018.903200][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1018.903200][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1018.903200][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1018.903200][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1018.903200][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1018.903200][   T73]      addrconf_dad_begin+0x310/0x670
[ 1018.903200][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1018.903200][   T73]      process_one_work+0x84d/0x18a0
[ 1018.903200][   T73]      worker_thread+0x587/0xd30
[ 1018.903200][   T73]      kthread+0x28a/0x350
[ 1018.903200][   T73]      ret_from_fork+0x31/0x70
[ 1018.903200][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1018.903200][   T73] 
[ 1018.905293][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1018.905293][   T73]      netdev_get_by_index+0x5e/0x80
[ 1018.905293][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1018.905293][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1018.905293][   T73]      ip6_route_add+0x1c/0x140
[ 1018.905293][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1018.905293][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1018.905293][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1018.905293][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1018.905293][   T73]      netlink_rcv_skb+0x130/0x360
[ 1018.905293][   T73]      netlink_unicast+0x449/0x710
[ 1018.905293][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1018.905293][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1018.905293][   T73]      ___sys_sendmsg+0xee/0x170
[ 1018.905293][   T73]      __sys_sendmsg+0xcd/0x170
[ 1018.905293][   T73]      do_syscall_64+0xc6/0x1e0
[ 1018.905293][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1018.905293][   T73] 
[ 1018.907605][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1018.907605][   T73]      netdev_get_by_index+0x5e/0x80
[ 1018.907605][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1018.907605][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1018.907605][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1018.907605][   T73]      ipv6_add_addr+0x411/0x2000
[ 1018.907605][   T73]      inet6_addr_add+0x30e/0xa40
[ 1018.907605][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1018.907605][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1018.907605][   T73]      netlink_rcv_skb+0x130/0x360
[ 1018.907605][   T73]      netlink_unicast+0x449/0x710
[ 1018.907605][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1018.907605][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1018.907605][   T73]      ___sys_sendmsg+0xee/0x170
[ 1018.907605][   T73]      __sys_sendmsg+0xcd/0x170
[ 1018.907605][   T73]      do_syscall_64+0xc6/0x1e0
[ 1018.907605][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1018.907605][   T73] 
[ 1018.909899][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1018.909899][   T73]      netdev_get_by_index+0x5e/0x80
[ 1018.909899][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1018.909899][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1018.909899][   T73]      ip6_route_add+0x1c/0x140
[ 1018.909899][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1018.909899][   T73]      addrconf_add_dev+0xe2/0x170
[ 1018.909899][   T73]      inet6_addr_add+0x12f/0xa40
[ 1018.909899][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1018.909899][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1018.909899][   T73]      netlink_rcv_skb+0x130/0x360
[ 1018.909899][   T73]      netlink_unicast+0x449/0x710
[ 1018.909899][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1018.909899][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1018.909899][   T73]      ___sys_sendmsg+0xee/0x170
[ 1018.909899][   T73]      __sys_sendmsg+0xcd/0x170
[ 1018.909899][   T73]      do_syscall_64+0xc6/0x1e0
[ 1018.909899][   T73] 
[ 1018.912116][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1018.912116][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1018.912116][   T73]      ipv6_find_idev+0x102/0x170
[ 1018.912116][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1018.912116][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1018.912116][   T73]      netlink_rcv_skb+0x130/0x360
[ 1018.912116][   T73]      netlink_unicast+0x449/0x710
[ 1018.912116][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1018.912116][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1018.912116][   T73]      ___sys_sendmsg+0xee/0x170
[ 1018.912116][   T73]      __sys_sendmsg+0xcd/0x170
[ 1018.912116][   T73]      do_syscall_64+0xc6/0x1e0
[ 1018.912116][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1018.912116][   T73] 
[ 1018.913858][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1018.913858][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1018.913858][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1018.913858][   T73]      ipv6_find_idev+0x102/0x170
[ 1018.913858][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1018.913858][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1018.913858][   T73]      netlink_rcv_skb+0x130/0x360
[ 1018.913858][   T73]      netlink_unicast+0x449/0x710
[ 1018.913858][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1018.913858][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1018.913858][   T73]      ___sys_sendmsg+0xee/0x170
[ 1018.913858][   T73]      __sys_sendmsg+0xcd/0x170
[ 1018.913858][   T73]      do_syscall_64+0xc6/0x1e0
[ 1018.913858][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1018.913858][   T73] 
[ 1029.127814][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1029.128217][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1029.128217][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1029.128217][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1029.128217][   T73]      fib6_nh_init+0xa22/0x1580
[ 1029.128217][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1029.128217][   T73]      ip6_route_add+0x1c/0x140
[ 1029.128217][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1029.128217][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1029.128217][   T73]      netlink_rcv_skb+0x130/0x360
[ 1029.128217][   T73]      netlink_unicast+0x449/0x710
[ 1029.128217][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1029.128217][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1029.128217][   T73]      ___sys_sendmsg+0xee/0x170
[ 1029.128217][   T73]      __sys_sendmsg+0xcd/0x170
[ 1029.128217][   T73]      do_syscall_64+0xc6/0x1e0
[ 1029.128217][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1029.128217][   T73] 
[ 1029.130139][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1029.130139][   T73]      dst_init+0x84/0x4a0
[ 1029.130139][   T73]      dst_alloc+0x97/0x150
[ 1029.130139][   T73]      ip6_dst_alloc+0x23/0x90
[ 1029.130139][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1029.130139][   T73]      ip6_pol_route+0x56f/0x840
[ 1029.130139][   T73]      fib6_rule_lookup+0x456/0x630
[ 1029.130139][   T73]      ip6_route_input+0x59c/0xa50
[ 1029.130139][   T73]      ipv6_rcv+0x397/0x810
[ 1029.130139][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1029.130139][   T73]      process_backlog+0x101/0x620
[ 1029.130139][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1029.130139][   T73]      net_rx_action+0x495/0xbe0
[ 1029.130139][   T73]      __do_softirq+0x1b5/0x7f6
[ 1029.130139][   T73] 
[ 1029.131818][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1029.131818][   T73]      netdev_get_by_index+0x5e/0x80
[ 1029.131818][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1029.131818][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1029.131818][   T73]      ip6_route_add+0x1c/0x140
[ 1029.131818][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1029.131818][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1029.131818][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1029.131818][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1029.131818][   T73]      netlink_rcv_skb+0x130/0x360
[ 1029.131818][   T73]      netlink_unicast+0x449/0x710
[ 1029.131818][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1029.131818][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1029.131818][   T73]      ___sys_sendmsg+0xee/0x170
[ 1029.131818][   T73]      __sys_sendmsg+0xcd/0x170
[ 1029.131818][   T73]      do_syscall_64+0xc6/0x1e0
[ 1029.131818][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1029.131818][   T73] 
[ 1029.133808][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1029.133808][   T73]      netdev_get_by_index+0x5e/0x80
[ 1029.133808][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1029.133808][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1029.133808][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1029.133808][   T73]      ipv6_add_addr+0x411/0x2000
[ 1029.133808][   T73]      inet6_addr_add+0x30e/0xa40
[ 1029.133808][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1029.133808][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1029.133808][   T73]      netlink_rcv_skb+0x130/0x360
[ 1029.133808][   T73]      netlink_unicast+0x449/0x710
[ 1029.133808][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1029.133808][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1029.133808][   T73]      ___sys_sendmsg+0xee/0x170
[ 1029.133808][   T73]      __sys_sendmsg+0xcd/0x170
[ 1029.133808][   T73]      do_syscall_64+0xc6/0x1e0
[ 1029.133808][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1029.133808][   T73] 
[ 1029.135836][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1029.135836][   T73]      netdev_get_by_index+0x5e/0x80
[ 1029.135836][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1029.135836][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1029.135836][   T73]      ip6_route_add+0x1c/0x140
[ 1029.135836][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1029.135836][   T73]      addrconf_add_dev+0xe2/0x170
[ 1029.135836][   T73]      inet6_addr_add+0x12f/0xa40
[ 1029.135836][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1029.135836][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1029.135836][   T73]      netlink_rcv_skb+0x130/0x360
[ 1029.135836][   T73]      netlink_unicast+0x449/0x710
[ 1029.135836][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1029.135836][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1029.135836][   T73]      ___sys_sendmsg+0xee/0x170
[ 1029.135836][   T73]      __sys_sendmsg+0xcd/0x170
[ 1029.135836][   T73]      do_syscall_64+0xc6/0x1e0
[ 1029.135836][   T73] 
[ 1029.137832][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1029.137832][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1029.137832][   T73]      ipv6_find_idev+0x102/0x170
[ 1029.137832][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1029.137832][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1029.137832][   T73]      netlink_rcv_skb+0x130/0x360
[ 1029.137832][   T73]      netlink_unicast+0x449/0x710
[ 1029.137832][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1029.137832][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1029.137832][   T73]      ___sys_sendmsg+0xee/0x170
[ 1029.137832][   T73]      __sys_sendmsg+0xcd/0x170
[ 1029.137832][   T73]      do_syscall_64+0xc6/0x1e0
[ 1029.137832][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1029.137832][   T73] 
[ 1029.139396][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1029.139396][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1029.139396][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1029.139396][   T73]      ipv6_find_idev+0x102/0x170
[ 1029.139396][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1029.139396][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1029.139396][   T73]      netlink_rcv_skb+0x130/0x360
[ 1029.139396][   T73]      netlink_unicast+0x449/0x710
[ 1029.139396][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1029.139396][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1029.139396][   T73]      ___sys_sendmsg+0xee/0x170
[ 1029.139396][   T73]      __sys_sendmsg+0xcd/0x170
[ 1029.139396][   T73]      do_syscall_64+0xc6/0x1e0
[ 1029.139396][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1029.139396][   T73] 
[ 1029.141116][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1029.141389][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1029.141389][   T73]      netdev_get_by_index+0x5e/0x80
[ 1029.141389][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1029.141389][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1029.141389][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1029.141389][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1029.141389][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1029.141389][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1029.141389][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1029.141389][   T73]      addrconf_dad_begin+0x310/0x670
[ 1029.141389][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1029.141389][   T73]      process_one_work+0x84d/0x18a0
[ 1029.141389][   T73]      worker_thread+0x587/0xd30
[ 1029.141389][   T73]      kthread+0x28a/0x350
[ 1029.141389][   T73]      ret_from_fork+0x31/0x70
[ 1029.141389][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1029.141389][   T73] 
[ 1029.143307][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1029.143307][   T73]      netdev_get_by_index+0x5e/0x80
[ 1029.143307][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1029.143307][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1029.143307][   T73]      ip6_route_add+0x1c/0x140
[ 1029.143307][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1029.143307][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1029.143307][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1029.143307][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1029.143307][   T73]      netlink_rcv_skb+0x130/0x360
[ 1029.143307][   T73]      netlink_unicast+0x449/0x710
[ 1029.143307][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1029.143307][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1029.143307][   T73]      ___sys_sendmsg+0xee/0x170
[ 1029.143307][   T73]      __sys_sendmsg+0xcd/0x170
[ 1029.143307][   T73]      do_syscall_64+0xc6/0x1e0
[ 1029.143307][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1029.143307][   T73] 
[ 1029.145284][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1029.145284][   T73]      netdev_get_by_index+0x5e/0x80
[ 1029.145284][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1029.145284][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1029.145284][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1029.145284][   T73]      ipv6_add_addr+0x411/0x2000
[ 1029.145284][   T73]      inet6_addr_add+0x30e/0xa40
[ 1029.145284][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1029.145284][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1029.145284][   T73]      netlink_rcv_skb+0x130/0x360
[ 1029.145284][   T73]      netlink_unicast+0x449/0x710
[ 1029.145284][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1029.145284][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1029.145284][   T73]      ___sys_sendmsg+0xee/0x170
[ 1029.145284][   T73]      __sys_sendmsg+0xcd/0x170
[ 1029.145284][   T73]      do_syscall_64+0xc6/0x1e0
[ 1029.145284][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1029.145284][   T73] 
[ 1029.147292][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1029.147292][   T73]      netdev_get_by_index+0x5e/0x80
[ 1029.147292][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1029.147292][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1029.147292][   T73]      ip6_route_add+0x1c/0x140
[ 1029.147292][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1029.147292][   T73]      addrconf_add_dev+0xe2/0x170
[ 1029.147292][   T73]      inet6_addr_add+0x12f/0xa40
[ 1029.147292][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1029.147292][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1029.147292][   T73]      netlink_rcv_skb+0x130/0x360
[ 1029.147292][   T73]      netlink_unicast+0x449/0x710
[ 1029.147292][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1029.147292][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1029.147292][   T73]      ___sys_sendmsg+0xee/0x170
[ 1029.147292][   T73]      __sys_sendmsg+0xcd/0x170
[ 1029.147292][   T73]      do_syscall_64+0xc6/0x1e0
[ 1029.147292][   T73] 
[ 1029.149280][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1029.149280][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1029.149280][   T73]      ipv6_find_idev+0x102/0x170
[ 1029.149280][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1029.149280][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1029.149280][   T73]      netlink_rcv_skb+0x130/0x360
[ 1029.149280][   T73]      netlink_unicast+0x449/0x710
[ 1029.149280][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1029.149280][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1029.149280][   T73]      ___sys_sendmsg+0xee/0x170
[ 1029.149280][   T73]      __sys_sendmsg+0xcd/0x170
[ 1029.149280][   T73]      do_syscall_64+0xc6/0x1e0
[ 1029.149280][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1029.149280][   T73] 
[ 1029.150842][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1029.150842][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1029.150842][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1029.150842][   T73]      ipv6_find_idev+0x102/0x170
[ 1029.150842][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1029.150842][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1029.150842][   T73]      netlink_rcv_skb+0x130/0x360
[ 1029.150842][   T73]      netlink_unicast+0x449/0x710
[ 1029.150842][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1029.150842][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1029.150842][   T73]      ___sys_sendmsg+0xee/0x170
[ 1029.150842][   T73]      __sys_sendmsg+0xcd/0x170
[ 1029.150842][   T73]      do_syscall_64+0xc6/0x1e0
[ 1029.150842][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1029.150842][   T73] 
[ 1029.152530][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1029.152812][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1029.152812][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1029.152812][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1029.152812][   T73]      fib6_nh_init+0xa22/0x1580
[ 1029.152812][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1029.152812][   T73]      ip6_route_add+0x1c/0x140
[ 1029.152812][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1029.152812][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1029.152812][   T73]      netlink_rcv_skb+0x130/0x360
[ 1029.152812][   T73]      netlink_unicast+0x449/0x710
[ 1029.152812][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1029.152812][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1029.152812][   T73]      ___sys_sendmsg+0xee/0x170
[ 1029.152812][   T73]      __sys_sendmsg+0xcd/0x170
[ 1029.152812][   T73]      do_syscall_64+0xc6/0x1e0
[ 1029.152812][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1029.152812][   T73] 
[ 1029.154896][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1029.154896][   T73]      dst_init+0x84/0x4a0
[ 1029.154896][   T73]      dst_alloc+0x97/0x150
[ 1029.154896][   T73]      ip6_dst_alloc+0x23/0x90
[ 1029.154896][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1029.154896][   T73]      ip6_pol_route+0x56f/0x840
[ 1029.154896][   T73]      fib6_rule_lookup+0x456/0x630
[ 1029.154896][   T73]      ip6_route_input+0x59c/0xa50
[ 1029.154896][   T73]      ipv6_rcv+0x397/0x810
[ 1029.154896][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1029.154896][   T73]      process_backlog+0x101/0x620
[ 1029.154896][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1029.154896][   T73]      net_rx_action+0x495/0xbe0
[ 1029.154896][   T73]      __do_softirq+0x1b5/0x7f6
[ 1029.154896][   T73] 
[ 1029.156765][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1029.156765][   T73]      netdev_get_by_index+0x5e/0x80
[ 1029.156765][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1029.156765][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1029.156765][   T73]      ip6_route_add+0x1c/0x140
[ 1029.156765][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1029.156765][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1029.156765][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1029.156765][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1029.156765][   T73]      netlink_rcv_skb+0x130/0x360
[ 1029.156765][   T73]      netlink_unicast+0x449/0x710
[ 1029.156765][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1029.156765][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1029.156765][   T73]      ___sys_sendmsg+0xee/0x170
[ 1029.156765][   T73]      __sys_sendmsg+0xcd/0x170
[ 1029.156765][   T73]      do_syscall_64+0xc6/0x1e0
[ 1029.156765][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1029.156765][   T73] 
[ 1029.159152][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1029.159152][   T73]      netdev_get_by_index+0x5e/0x80
[ 1029.159152][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1029.159152][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1029.159152][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1029.159152][   T73]      ipv6_add_addr+0x411/0x2000
[ 1029.159152][   T73]      inet6_addr_add+0x30e/0xa40
[ 1029.159152][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1029.159152][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1029.159152][   T73]      netlink_rcv_skb+0x130/0x360
[ 1029.159152][   T73]      netlink_unicast+0x449/0x710
[ 1029.159152][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1029.159152][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1029.159152][   T73]      ___sys_sendmsg+0xee/0x170
[ 1029.159152][   T73]      __sys_sendmsg+0xcd/0x170
[ 1029.159152][   T73]      do_syscall_64+0xc6/0x1e0
[ 1029.159152][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1029.159152][   T73] 
[ 1029.161436][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1029.161436][   T73]      netdev_get_by_index+0x5e/0x80
[ 1029.161436][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1029.161436][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1029.161436][   T73]      ip6_route_add+0x1c/0x140
[ 1029.161436][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1029.161436][   T73]      addrconf_add_dev+0xe2/0x170
[ 1029.161436][   T73]      inet6_addr_add+0x12f/0xa40
[ 1029.161436][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1029.161436][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1029.161436][   T73]      netlink_rcv_skb+0x130/0x360
[ 1029.161436][   T73]      netlink_unicast+0x449/0x710
[ 1029.161436][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1029.161436][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1029.161436][   T73]      ___sys_sendmsg+0xee/0x170
[ 1029.161436][   T73]      __sys_sendmsg+0xcd/0x170
[ 1029.161436][   T73]      do_syscall_64+0xc6/0x1e0
[ 1029.161436][   T73] 
[ 1029.163623][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1029.163623][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1029.163623][   T73]      ipv6_find_idev+0x102/0x170
[ 1029.163623][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1029.163623][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1029.163623][   T73]      netlink_rcv_skb+0x130/0x360
[ 1029.163623][   T73]      netlink_unicast+0x449/0x710
[ 1029.163623][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1029.163623][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1029.163623][   T73]      ___sys_sendmsg+0xee/0x170
[ 1029.163623][   T73]      __sys_sendmsg+0xcd/0x170
[ 1029.163623][   T73]      do_syscall_64+0xc6/0x1e0
[ 1029.163623][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1029.163623][   T73] 
[ 1029.165335][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1029.165335][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1029.165335][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1029.165335][   T73]      ipv6_find_idev+0x102/0x170
[ 1029.165335][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1029.165335][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1029.165335][   T73]      netlink_rcv_skb+0x130/0x360
[ 1029.165335][   T73]      netlink_unicast+0x449/0x710
[ 1029.165335][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1029.165335][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1029.165335][   T73]      ___sys_sendmsg+0xee/0x170
[ 1029.165335][   T73]      __sys_sendmsg+0xcd/0x170
[ 1029.165335][   T73]      do_syscall_64+0xc6/0x1e0
[ 1029.165335][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1029.165335][   T73] 
[ 1029.167308][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1029.167643][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1029.167643][   T73]      netdev_get_by_index+0x5e/0x80
[ 1029.167643][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1029.167643][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1029.167643][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1029.167643][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1029.167643][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1029.167643][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1029.167643][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1029.167643][   T73]      addrconf_dad_begin+0x310/0x670
[ 1029.167643][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1029.167643][   T73]      process_one_work+0x84d/0x18a0
[ 1029.167643][   T73]      worker_thread+0x587/0xd30
[ 1029.167643][   T73]      kthread+0x28a/0x350
[ 1029.167643][   T73]      ret_from_fork+0x31/0x70
[ 1029.167643][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1029.167643][   T73] 
[ 1029.169773][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1029.169773][   T73]      netdev_get_by_index+0x5e/0x80
[ 1029.169773][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1029.169773][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1029.169773][   T73]      ip6_route_add+0x1c/0x140
[ 1029.169773][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1029.169773][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1029.169773][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1029.169773][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1029.169773][   T73]      netlink_rcv_skb+0x130/0x360
[ 1029.169773][   T73]      netlink_unicast+0x449/0x710
[ 1029.169773][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1029.169773][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1029.169773][   T73]      ___sys_sendmsg+0xee/0x170
[ 1029.169773][   T73]      __sys_sendmsg+0xcd/0x170
[ 1029.169773][   T73]      do_syscall_64+0xc6/0x1e0
[ 1029.169773][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1029.169773][   T73] 
[ 1029.172042][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1029.172042][   T73]      netdev_get_by_index+0x5e/0x80
[ 1029.172042][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1029.172042][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1029.172042][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1029.172042][   T73]      ipv6_add_addr+0x411/0x2000
[ 1029.172042][   T73]      inet6_addr_add+0x30e/0xa40
[ 1029.172042][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1029.172042][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1029.172042][   T73]      netlink_rcv_skb+0x130/0x360
[ 1029.172042][   T73]      netlink_unicast+0x449/0x710
[ 1029.172042][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1029.172042][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1029.172042][   T73]      ___sys_sendmsg+0xee/0x170
[ 1029.172042][   T73]      __sys_sendmsg+0xcd/0x170
[ 1029.172042][   T73]      do_syscall_64+0xc6/0x1e0
[ 1029.172042][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1029.172042][   T73] 
[ 1029.174301][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1029.174301][   T73]      netdev_get_by_index+0x5e/0x80
[ 1029.174301][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1029.174301][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1029.174301][   T73]      ip6_route_add+0x1c/0x140
[ 1029.174301][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1029.174301][   T73]      addrconf_add_dev+0xe2/0x170
[ 1029.174301][   T73]      inet6_addr_add+0x12f/0xa40
[ 1029.174301][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1029.174301][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1029.174301][   T73]      netlink_rcv_skb+0x130/0x360
[ 1029.174301][   T73]      netlink_unicast+0x449/0x710
[ 1029.174301][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1029.174301][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1029.174301][   T73]      ___sys_sendmsg+0xee/0x170
[ 1029.174301][   T73]      __sys_sendmsg+0xcd/0x170
[ 1029.174301][   T73]      do_syscall_64+0xc6/0x1e0
[ 1029.174301][   T73] 
[ 1029.176596][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1029.176596][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1029.176596][   T73]      ipv6_find_idev+0x102/0x170
[ 1029.176596][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1029.176596][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1029.176596][   T73]      netlink_rcv_skb+0x130/0x360
[ 1029.176596][   T73]      netlink_unicast+0x449/0x710
[ 1029.176596][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1029.176596][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1029.176596][   T73]      ___sys_sendmsg+0xee/0x170
[ 1029.176596][   T73]      __sys_sendmsg+0xcd/0x170
[ 1029.176596][   T73]      do_syscall_64+0xc6/0x1e0
[ 1029.176596][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1029.176596][   T73] 
[ 1029.178331][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1029.178331][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1029.178331][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1029.178331][   T73]      ipv6_find_idev+0x102/0x170
[ 1029.178331][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1029.178331][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1029.178331][   T73]      netlink_rcv_skb+0x130/0x360
[ 1029.178331][   T73]      netlink_unicast+0x449/0x710
[ 1029.178331][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1029.178331][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1029.178331][   T73]      ___sys_sendmsg+0xee/0x170
[ 1029.178331][   T73]      __sys_sendmsg+0xcd/0x170
[ 1029.178331][   T73]      do_syscall_64+0xc6/0x1e0
[ 1029.178331][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1029.178331][   T73] 
[ 1039.335846][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1039.336248][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1039.336248][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1039.336248][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1039.336248][   T73]      fib6_nh_init+0xa22/0x1580
[ 1039.336248][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1039.336248][   T73]      ip6_route_add+0x1c/0x140
[ 1039.336248][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1039.336248][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1039.336248][   T73]      netlink_rcv_skb+0x130/0x360
[ 1039.336248][   T73]      netlink_unicast+0x449/0x710
[ 1039.336248][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1039.336248][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1039.336248][   T73]      ___sys_sendmsg+0xee/0x170
[ 1039.336248][   T73]      __sys_sendmsg+0xcd/0x170
[ 1039.336248][   T73]      do_syscall_64+0xc6/0x1e0
[ 1039.336248][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1039.336248][   T73] 
[ 1039.338248][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1039.338248][   T73]      dst_init+0x84/0x4a0
[ 1039.338248][   T73]      dst_alloc+0x97/0x150
[ 1039.338248][   T73]      ip6_dst_alloc+0x23/0x90
[ 1039.338248][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1039.338248][   T73]      ip6_pol_route+0x56f/0x840
[ 1039.338248][   T73]      fib6_rule_lookup+0x456/0x630
[ 1039.338248][   T73]      ip6_route_input+0x59c/0xa50
[ 1039.338248][   T73]      ipv6_rcv+0x397/0x810
[ 1039.338248][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1039.338248][   T73]      process_backlog+0x101/0x620
[ 1039.338248][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1039.338248][   T73]      net_rx_action+0x495/0xbe0
[ 1039.338248][   T73]      __do_softirq+0x1b5/0x7f6
[ 1039.338248][   T73] 
[ 1039.339883][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1039.339883][   T73]      netdev_get_by_index+0x5e/0x80
[ 1039.339883][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1039.339883][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1039.339883][   T73]      ip6_route_add+0x1c/0x140
[ 1039.339883][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1039.339883][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1039.339883][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1039.339883][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1039.339883][   T73]      netlink_rcv_skb+0x130/0x360
[ 1039.339883][   T73]      netlink_unicast+0x449/0x710
[ 1039.339883][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1039.339883][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1039.339883][   T73]      ___sys_sendmsg+0xee/0x170
[ 1039.339883][   T73]      __sys_sendmsg+0xcd/0x170
[ 1039.339883][   T73]      do_syscall_64+0xc6/0x1e0
[ 1039.339883][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1039.339883][   T73] 
[ 1039.341900][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1039.341900][   T73]      netdev_get_by_index+0x5e/0x80
[ 1039.341900][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1039.341900][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1039.341900][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1039.341900][   T73]      ipv6_add_addr+0x411/0x2000
[ 1039.341900][   T73]      inet6_addr_add+0x30e/0xa40
[ 1039.341900][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1039.341900][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1039.341900][   T73]      netlink_rcv_skb+0x130/0x360
[ 1039.341900][   T73]      netlink_unicast+0x449/0x710
[ 1039.341900][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1039.341900][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1039.341900][   T73]      ___sys_sendmsg+0xee/0x170
[ 1039.341900][   T73]      __sys_sendmsg+0xcd/0x170
[ 1039.341900][   T73]      do_syscall_64+0xc6/0x1e0
[ 1039.341900][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1039.341900][   T73] 
[ 1039.343914][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1039.343914][   T73]      netdev_get_by_index+0x5e/0x80
[ 1039.343914][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1039.343914][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1039.343914][   T73]      ip6_route_add+0x1c/0x140
[ 1039.343914][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1039.343914][   T73]      addrconf_add_dev+0xe2/0x170
[ 1039.343914][   T73]      inet6_addr_add+0x12f/0xa40
[ 1039.343914][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1039.343914][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1039.343914][   T73]      netlink_rcv_skb+0x130/0x360
[ 1039.343914][   T73]      netlink_unicast+0x449/0x710
[ 1039.343914][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1039.343914][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1039.343914][   T73]      ___sys_sendmsg+0xee/0x170
[ 1039.343914][   T73]      __sys_sendmsg+0xcd/0x170
[ 1039.343914][   T73]      do_syscall_64+0xc6/0x1e0
[ 1039.343914][   T73] 
[ 1039.345879][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1039.345879][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1039.345879][   T73]      ipv6_find_idev+0x102/0x170
[ 1039.345879][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1039.345879][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1039.345879][   T73]      netlink_rcv_skb+0x130/0x360
[ 1039.345879][   T73]      netlink_unicast+0x449/0x710
[ 1039.345879][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1039.345879][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1039.345879][   T73]      ___sys_sendmsg+0xee/0x170
[ 1039.345879][   T73]      __sys_sendmsg+0xcd/0x170
[ 1039.345879][   T73]      do_syscall_64+0xc6/0x1e0
[ 1039.345879][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1039.345879][   T73] 
[ 1039.347422][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1039.347422][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1039.347422][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1039.347422][   T73]      ipv6_find_idev+0x102/0x170
[ 1039.347422][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1039.347422][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1039.347422][   T73]      netlink_rcv_skb+0x130/0x360
[ 1039.347422][   T73]      netlink_unicast+0x449/0x710
[ 1039.347422][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1039.347422][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1039.347422][   T73]      ___sys_sendmsg+0xee/0x170
[ 1039.347422][   T73]      __sys_sendmsg+0xcd/0x170
[ 1039.347422][   T73]      do_syscall_64+0xc6/0x1e0
[ 1039.347422][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1039.347422][   T73] 
[ 1039.349141][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1039.349416][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1039.349416][   T73]      netdev_get_by_index+0x5e/0x80
[ 1039.349416][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1039.349416][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1039.349416][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1039.349416][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1039.349416][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1039.349416][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1039.349416][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1039.349416][   T73]      addrconf_dad_begin+0x310/0x670
[ 1039.349416][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1039.349416][   T73]      process_one_work+0x84d/0x18a0
[ 1039.349416][   T73]      worker_thread+0x587/0xd30
[ 1039.349416][   T73]      kthread+0x28a/0x350
[ 1039.349416][   T73]      ret_from_fork+0x31/0x70
[ 1039.349416][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1039.349416][   T73] 
[ 1039.351341][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1039.351341][   T73]      netdev_get_by_index+0x5e/0x80
[ 1039.351341][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1039.351341][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1039.351341][   T73]      ip6_route_add+0x1c/0x140
[ 1039.351341][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1039.351341][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1039.351341][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1039.351341][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1039.351341][   T73]      netlink_rcv_skb+0x130/0x360
[ 1039.351341][   T73]      netlink_unicast+0x449/0x710
[ 1039.351341][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1039.351341][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1039.351341][   T73]      ___sys_sendmsg+0xee/0x170
[ 1039.351341][   T73]      __sys_sendmsg+0xcd/0x170
[ 1039.351341][   T73]      do_syscall_64+0xc6/0x1e0
[ 1039.351341][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1039.351341][   T73] 
[ 1039.353341][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1039.353341][   T73]      netdev_get_by_index+0x5e/0x80
[ 1039.353341][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1039.353341][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1039.353341][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1039.353341][   T73]      ipv6_add_addr+0x411/0x2000
[ 1039.353341][   T73]      inet6_addr_add+0x30e/0xa40
[ 1039.353341][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1039.353341][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1039.353341][   T73]      netlink_rcv_skb+0x130/0x360
[ 1039.353341][   T73]      netlink_unicast+0x449/0x710
[ 1039.353341][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1039.353341][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1039.353341][   T73]      ___sys_sendmsg+0xee/0x170
[ 1039.353341][   T73]      __sys_sendmsg+0xcd/0x170
[ 1039.353341][   T73]      do_syscall_64+0xc6/0x1e0
[ 1039.353341][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1039.353341][   T73] 
[ 1039.355326][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1039.355326][   T73]      netdev_get_by_index+0x5e/0x80
[ 1039.355326][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1039.355326][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1039.355326][   T73]      ip6_route_add+0x1c/0x140
[ 1039.355326][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1039.355326][   T73]      addrconf_add_dev+0xe2/0x170
[ 1039.355326][   T73]      inet6_addr_add+0x12f/0xa40
[ 1039.355326][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1039.355326][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1039.355326][   T73]      netlink_rcv_skb+0x130/0x360
[ 1039.355326][   T73]      netlink_unicast+0x449/0x710
[ 1039.355326][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1039.355326][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1039.355326][   T73]      ___sys_sendmsg+0xee/0x170
[ 1039.355326][   T73]      __sys_sendmsg+0xcd/0x170
[ 1039.355326][   T73]      do_syscall_64+0xc6/0x1e0
[ 1039.355326][   T73] 
[ 1039.357286][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1039.357286][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1039.357286][   T73]      ipv6_find_idev+0x102/0x170
[ 1039.357286][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1039.357286][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1039.357286][   T73]      netlink_rcv_skb+0x130/0x360
[ 1039.357286][   T73]      netlink_unicast+0x449/0x710
[ 1039.357286][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1039.357286][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1039.357286][   T73]      ___sys_sendmsg+0xee/0x170
[ 1039.357286][   T73]      __sys_sendmsg+0xcd/0x170
[ 1039.357286][   T73]      do_syscall_64+0xc6/0x1e0
[ 1039.357286][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1039.357286][   T73] 
[ 1039.358825][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1039.358825][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1039.358825][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1039.358825][   T73]      ipv6_find_idev+0x102/0x170
[ 1039.358825][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1039.358825][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1039.358825][   T73]      netlink_rcv_skb+0x130/0x360
[ 1039.358825][   T73]      netlink_unicast+0x449/0x710
[ 1039.358825][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1039.358825][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1039.358825][   T73]      ___sys_sendmsg+0xee/0x170
[ 1039.358825][   T73]      __sys_sendmsg+0xcd/0x170
[ 1039.358825][   T73]      do_syscall_64+0xc6/0x1e0
[ 1039.358825][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1039.358825][   T73] 
[ 1039.360556][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1039.360833][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1039.360833][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1039.360833][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1039.360833][   T73]      fib6_nh_init+0xa22/0x1580
[ 1039.360833][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1039.360833][   T73]      ip6_route_add+0x1c/0x140
[ 1039.360833][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1039.360833][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1039.360833][   T73]      netlink_rcv_skb+0x130/0x360
[ 1039.360833][   T73]      netlink_unicast+0x449/0x710
[ 1039.360833][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1039.360833][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1039.360833][   T73]      ___sys_sendmsg+0xee/0x170
[ 1039.360833][   T73]      __sys_sendmsg+0xcd/0x170
[ 1039.360833][   T73]      do_syscall_64+0xc6/0x1e0
[ 1039.360833][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1039.360833][   T73] 
[ 1039.362867][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1039.362867][   T73]      dst_init+0x84/0x4a0
[ 1039.362867][   T73]      dst_alloc+0x97/0x150
[ 1039.362867][   T73]      ip6_dst_alloc+0x23/0x90
[ 1039.362867][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1039.362867][   T73]      ip6_pol_route+0x56f/0x840
[ 1039.362867][   T73]      fib6_rule_lookup+0x456/0x630
[ 1039.362867][   T73]      ip6_route_input+0x59c/0xa50
[ 1039.362867][   T73]      ipv6_rcv+0x397/0x810
[ 1039.362867][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1039.362867][   T73]      process_backlog+0x101/0x620
[ 1039.362867][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1039.362867][   T73]      net_rx_action+0x495/0xbe0
[ 1039.362867][   T73]      __do_softirq+0x1b5/0x7f6
[ 1039.362867][   T73] 
[ 1039.364695][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1039.364695][   T73]      netdev_get_by_index+0x5e/0x80
[ 1039.364695][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1039.364695][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1039.364695][   T73]      ip6_route_add+0x1c/0x140
[ 1039.364695][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1039.364695][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1039.364695][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1039.364695][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1039.364695][   T73]      netlink_rcv_skb+0x130/0x360
[ 1039.364695][   T73]      netlink_unicast+0x449/0x710
[ 1039.364695][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1039.364695][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1039.364695][   T73]      ___sys_sendmsg+0xee/0x170
[ 1039.364695][   T73]      __sys_sendmsg+0xcd/0x170
[ 1039.364695][   T73]      do_syscall_64+0xc6/0x1e0
[ 1039.364695][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1039.364695][   T73] 
[ 1039.366958][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1039.366958][   T73]      netdev_get_by_index+0x5e/0x80
[ 1039.366958][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1039.366958][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1039.366958][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1039.366958][   T73]      ipv6_add_addr+0x411/0x2000
[ 1039.366958][   T73]      inet6_addr_add+0x30e/0xa40
[ 1039.366958][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1039.366958][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1039.366958][   T73]      netlink_rcv_skb+0x130/0x360
[ 1039.366958][   T73]      netlink_unicast+0x449/0x710
[ 1039.366958][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1039.366958][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1039.366958][   T73]      ___sys_sendmsg+0xee/0x170
[ 1039.366958][   T73]      __sys_sendmsg+0xcd/0x170
[ 1039.366958][   T73]      do_syscall_64+0xc6/0x1e0
[ 1039.366958][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1039.366958][   T73] 
[ 1039.369233][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1039.369233][   T73]      netdev_get_by_index+0x5e/0x80
[ 1039.369233][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1039.369233][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1039.369233][   T73]      ip6_route_add+0x1c/0x140
[ 1039.369233][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1039.369233][   T73]      addrconf_add_dev+0xe2/0x170
[ 1039.369233][   T73]      inet6_addr_add+0x12f/0xa40
[ 1039.369233][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1039.369233][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1039.369233][   T73]      netlink_rcv_skb+0x130/0x360
[ 1039.369233][   T73]      netlink_unicast+0x449/0x710
[ 1039.369233][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1039.369233][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1039.369233][   T73]      ___sys_sendmsg+0xee/0x170
[ 1039.369233][   T73]      __sys_sendmsg+0xcd/0x170
[ 1039.369233][   T73]      do_syscall_64+0xc6/0x1e0
[ 1039.369233][   T73] 
[ 1039.371467][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1039.371467][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1039.371467][   T73]      ipv6_find_idev+0x102/0x170
[ 1039.371467][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1039.371467][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1039.371467][   T73]      netlink_rcv_skb+0x130/0x360
[ 1039.371467][   T73]      netlink_unicast+0x449/0x710
[ 1039.371467][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1039.371467][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1039.371467][   T73]      ___sys_sendmsg+0xee/0x170
[ 1039.371467][   T73]      __sys_sendmsg+0xcd/0x170
[ 1039.371467][   T73]      do_syscall_64+0xc6/0x1e0
[ 1039.371467][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1039.371467][   T73] 
[ 1039.373184][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1039.373184][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1039.373184][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1039.373184][   T73]      ipv6_find_idev+0x102/0x170
[ 1039.373184][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1039.373184][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1039.373184][   T73]      netlink_rcv_skb+0x130/0x360
[ 1039.373184][   T73]      netlink_unicast+0x449/0x710
[ 1039.373184][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1039.373184][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1039.373184][   T73]      ___sys_sendmsg+0xee/0x170
[ 1039.373184][   T73]      __sys_sendmsg+0xcd/0x170
[ 1039.373184][   T73]      do_syscall_64+0xc6/0x1e0
[ 1039.373184][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1039.373184][   T73] 
[ 1039.375055][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1039.375385][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1039.375385][   T73]      netdev_get_by_index+0x5e/0x80
[ 1039.375385][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1039.375385][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1039.375385][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1039.375385][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1039.375385][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1039.375385][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1039.375385][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1039.375385][   T73]      addrconf_dad_begin+0x310/0x670
[ 1039.375385][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1039.375385][   T73]      process_one_work+0x84d/0x18a0
[ 1039.375385][   T73]      worker_thread+0x587/0xd30
[ 1039.375385][   T73]      kthread+0x28a/0x350
[ 1039.375385][   T73]      ret_from_fork+0x31/0x70
[ 1039.375385][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1039.375385][   T73] 
[ 1039.378014][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1039.378014][   T73]      netdev_get_by_index+0x5e/0x80
[ 1039.378014][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1039.378014][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1039.378014][   T73]      ip6_route_add+0x1c/0x140
[ 1039.378014][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1039.378014][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1039.378014][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1039.378014][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1039.378014][   T73]      netlink_rcv_skb+0x130/0x360
[ 1039.378014][   T73]      netlink_unicast+0x449/0x710
[ 1039.378014][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1039.378014][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1039.378014][   T73]      ___sys_sendmsg+0xee/0x170
[ 1039.378014][   T73]      __sys_sendmsg+0xcd/0x170
[ 1039.378014][   T73]      do_syscall_64+0xc6/0x1e0
[ 1039.378014][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1039.378014][   T73] 
[ 1039.380250][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1039.380250][   T73]      netdev_get_by_index+0x5e/0x80
[ 1039.380250][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1039.380250][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1039.380250][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1039.380250][   T73]      ipv6_add_addr+0x411/0x2000
[ 1039.380250][   T73]      inet6_addr_add+0x30e/0xa40
[ 1039.380250][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1039.380250][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1039.380250][   T73]      netlink_rcv_skb+0x130/0x360
[ 1039.380250][   T73]      netlink_unicast+0x449/0x710
[ 1039.380250][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1039.380250][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1039.380250][   T73]      ___sys_sendmsg+0xee/0x170
[ 1039.380250][   T73]      __sys_sendmsg+0xcd/0x170
[ 1039.380250][   T73]      do_syscall_64+0xc6/0x1e0
[ 1039.380250][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1039.380250][   T73] 
[ 1039.382552][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1039.382552][   T73]      netdev_get_by_index+0x5e/0x80
[ 1039.382552][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1039.382552][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1039.382552][   T73]      ip6_route_add+0x1c/0x140
[ 1039.382552][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1039.382552][   T73]      addrconf_add_dev+0xe2/0x170
[ 1039.382552][   T73]      inet6_addr_add+0x12f/0xa40
[ 1039.382552][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1039.382552][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1039.382552][   T73]      netlink_rcv_skb+0x130/0x360
[ 1039.382552][   T73]      netlink_unicast+0x449/0x710
[ 1039.382552][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1039.382552][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1039.382552][   T73]      ___sys_sendmsg+0xee/0x170
[ 1039.382552][   T73]      __sys_sendmsg+0xcd/0x170
[ 1039.382552][   T73]      do_syscall_64+0xc6/0x1e0
[ 1039.382552][   T73] 
[ 1039.384789][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1039.384789][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1039.384789][   T73]      ipv6_find_idev+0x102/0x170
[ 1039.384789][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1039.384789][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1039.384789][   T73]      netlink_rcv_skb+0x130/0x360
[ 1039.384789][   T73]      netlink_unicast+0x449/0x710
[ 1039.384789][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1039.384789][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1039.384789][   T73]      ___sys_sendmsg+0xee/0x170
[ 1039.384789][   T73]      __sys_sendmsg+0xcd/0x170
[ 1039.384789][   T73]      do_syscall_64+0xc6/0x1e0
[ 1039.384789][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1039.384789][   T73] 
[ 1039.386528][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1039.386528][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1039.386528][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1039.386528][   T73]      ipv6_find_idev+0x102/0x170
[ 1039.386528][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1039.386528][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1039.386528][   T73]      netlink_rcv_skb+0x130/0x360
[ 1039.386528][   T73]      netlink_unicast+0x449/0x710
[ 1039.386528][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1039.386528][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1039.386528][   T73]      ___sys_sendmsg+0xee/0x170
[ 1039.386528][   T73]      __sys_sendmsg+0xcd/0x170
[ 1039.386528][   T73]      do_syscall_64+0xc6/0x1e0
[ 1039.386528][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1039.386528][   T73] 
[ 1049.439769][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1049.440202][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1049.440202][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1049.440202][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1049.440202][   T73]      fib6_nh_init+0xa22/0x1580
[ 1049.440202][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1049.440202][   T73]      ip6_route_add+0x1c/0x140
[ 1049.440202][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1049.440202][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1049.440202][   T73]      netlink_rcv_skb+0x130/0x360
[ 1049.440202][   T73]      netlink_unicast+0x449/0x710
[ 1049.440202][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1049.440202][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1049.440202][   T73]      ___sys_sendmsg+0xee/0x170
[ 1049.440202][   T73]      __sys_sendmsg+0xcd/0x170
[ 1049.440202][   T73]      do_syscall_64+0xc6/0x1e0
[ 1049.440202][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1049.440202][   T73] 
[ 1049.442115][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1049.442115][   T73]      dst_init+0x84/0x4a0
[ 1049.442115][   T73]      dst_alloc+0x97/0x150
[ 1049.442115][   T73]      ip6_dst_alloc+0x23/0x90
[ 1049.442115][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1049.442115][   T73]      ip6_pol_route+0x56f/0x840
[ 1049.442115][   T73]      fib6_rule_lookup+0x456/0x630
[ 1049.442115][   T73]      ip6_route_input+0x59c/0xa50
[ 1049.442115][   T73]      ipv6_rcv+0x397/0x810
[ 1049.442115][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1049.442115][   T73]      process_backlog+0x101/0x620
[ 1049.442115][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1049.442115][   T73]      net_rx_action+0x495/0xbe0
[ 1049.442115][   T73]      __do_softirq+0x1b5/0x7f6
[ 1049.442115][   T73] 
[ 1049.443776][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1049.443776][   T73]      netdev_get_by_index+0x5e/0x80
[ 1049.443776][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1049.443776][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1049.443776][   T73]      ip6_route_add+0x1c/0x140
[ 1049.443776][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1049.443776][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1049.443776][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1049.443776][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1049.443776][   T73]      netlink_rcv_skb+0x130/0x360
[ 1049.443776][   T73]      netlink_unicast+0x449/0x710
[ 1049.443776][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1049.443776][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1049.443776][   T73]      ___sys_sendmsg+0xee/0x170
[ 1049.443776][   T73]      __sys_sendmsg+0xcd/0x170
[ 1049.443776][   T73]      do_syscall_64+0xc6/0x1e0
[ 1049.443776][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1049.443776][   T73] 
[ 1049.445812][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1049.445812][   T73]      netdev_get_by_index+0x5e/0x80
[ 1049.445812][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1049.445812][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1049.445812][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1049.445812][   T73]      ipv6_add_addr+0x411/0x2000
[ 1049.445812][   T73]      inet6_addr_add+0x30e/0xa40
[ 1049.445812][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1049.445812][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1049.445812][   T73]      netlink_rcv_skb+0x130/0x360
[ 1049.445812][   T73]      netlink_unicast+0x449/0x710
[ 1049.445812][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1049.445812][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1049.445812][   T73]      ___sys_sendmsg+0xee/0x170
[ 1049.445812][   T73]      __sys_sendmsg+0xcd/0x170
[ 1049.445812][   T73]      do_syscall_64+0xc6/0x1e0
[ 1049.445812][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1049.445812][   T73] 
[ 1049.447847][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1049.447847][   T73]      netdev_get_by_index+0x5e/0x80
[ 1049.447847][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1049.447847][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1049.447847][   T73]      ip6_route_add+0x1c/0x140
[ 1049.447847][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1049.447847][   T73]      addrconf_add_dev+0xe2/0x170
[ 1049.447847][   T73]      inet6_addr_add+0x12f/0xa40
[ 1049.447847][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1049.447847][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1049.447847][   T73]      netlink_rcv_skb+0x130/0x360
[ 1049.447847][   T73]      netlink_unicast+0x449/0x710
[ 1049.447847][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1049.447847][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1049.447847][   T73]      ___sys_sendmsg+0xee/0x170
[ 1049.447847][   T73]      __sys_sendmsg+0xcd/0x170
[ 1049.447847][   T73]      do_syscall_64+0xc6/0x1e0
[ 1049.447847][   T73] 
[ 1049.449833][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1049.449833][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1049.449833][   T73]      ipv6_find_idev+0x102/0x170
[ 1049.449833][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1049.449833][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1049.449833][   T73]      netlink_rcv_skb+0x130/0x360
[ 1049.449833][   T73]      netlink_unicast+0x449/0x710
[ 1049.449833][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1049.449833][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1049.449833][   T73]      ___sys_sendmsg+0xee/0x170
[ 1049.449833][   T73]      __sys_sendmsg+0xcd/0x170
[ 1049.449833][   T73]      do_syscall_64+0xc6/0x1e0
[ 1049.449833][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1049.449833][   T73] 
[ 1049.451390][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1049.451390][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1049.451390][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1049.451390][   T73]      ipv6_find_idev+0x102/0x170
[ 1049.451390][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1049.451390][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1049.451390][   T73]      netlink_rcv_skb+0x130/0x360
[ 1049.451390][   T73]      netlink_unicast+0x449/0x710
[ 1049.451390][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1049.451390][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1049.451390][   T73]      ___sys_sendmsg+0xee/0x170
[ 1049.451390][   T73]      __sys_sendmsg+0xcd/0x170
[ 1049.451390][   T73]      do_syscall_64+0xc6/0x1e0
[ 1049.451390][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1049.451390][   T73] 
[ 1049.453102][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1049.453388][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1049.453388][   T73]      netdev_get_by_index+0x5e/0x80
[ 1049.453388][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1049.453388][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1049.453388][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1049.453388][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1049.453388][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1049.453388][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1049.453388][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1049.453388][   T73]      addrconf_dad_begin+0x310/0x670
[ 1049.453388][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1049.453388][   T73]      process_one_work+0x84d/0x18a0
[ 1049.453388][   T73]      worker_thread+0x587/0xd30
[ 1049.453388][   T73]      kthread+0x28a/0x350
[ 1049.453388][   T73]      ret_from_fork+0x31/0x70
[ 1049.453388][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1049.453388][   T73] 
[ 1049.455705][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1049.455705][   T73]      netdev_get_by_index+0x5e/0x80
[ 1049.455705][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1049.455705][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1049.455705][   T73]      ip6_route_add+0x1c/0x140
[ 1049.455705][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1049.455705][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1049.455705][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1049.455705][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1049.455705][   T73]      netlink_rcv_skb+0x130/0x360
[ 1049.455705][   T73]      netlink_unicast+0x449/0x710
[ 1049.455705][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1049.455705][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1049.455705][   T73]      ___sys_sendmsg+0xee/0x170
[ 1049.455705][   T73]      __sys_sendmsg+0xcd/0x170
[ 1049.455705][   T73]      do_syscall_64+0xc6/0x1e0
[ 1049.455705][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1049.455705][   T73] 
[ 1049.457725][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1049.457725][   T73]      netdev_get_by_index+0x5e/0x80
[ 1049.457725][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1049.457725][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1049.457725][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1049.457725][   T73]      ipv6_add_addr+0x411/0x2000
[ 1049.457725][   T73]      inet6_addr_add+0x30e/0xa40
[ 1049.457725][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1049.457725][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1049.457725][   T73]      netlink_rcv_skb+0x130/0x360
[ 1049.457725][   T73]      netlink_unicast+0x449/0x710
[ 1049.457725][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1049.457725][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1049.457725][   T73]      ___sys_sendmsg+0xee/0x170
[ 1049.457725][   T73]      __sys_sendmsg+0xcd/0x170
[ 1049.457725][   T73]      do_syscall_64+0xc6/0x1e0
[ 1049.457725][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1049.457725][   T73] 
[ 1049.459734][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1049.459734][   T73]      netdev_get_by_index+0x5e/0x80
[ 1049.459734][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1049.459734][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1049.459734][   T73]      ip6_route_add+0x1c/0x140
[ 1049.459734][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1049.459734][   T73]      addrconf_add_dev+0xe2/0x170
[ 1049.459734][   T73]      inet6_addr_add+0x12f/0xa40
[ 1049.459734][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1049.459734][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1049.459734][   T73]      netlink_rcv_skb+0x130/0x360
[ 1049.459734][   T73]      netlink_unicast+0x449/0x710
[ 1049.459734][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1049.459734][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1049.459734][   T73]      ___sys_sendmsg+0xee/0x170
[ 1049.459734][   T73]      __sys_sendmsg+0xcd/0x170
[ 1049.459734][   T73]      do_syscall_64+0xc6/0x1e0
[ 1049.459734][   T73] 
[ 1049.461721][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1049.461721][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1049.461721][   T73]      ipv6_find_idev+0x102/0x170
[ 1049.461721][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1049.461721][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1049.461721][   T73]      netlink_rcv_skb+0x130/0x360
[ 1049.461721][   T73]      netlink_unicast+0x449/0x710
[ 1049.461721][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1049.461721][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1049.461721][   T73]      ___sys_sendmsg+0xee/0x170
[ 1049.461721][   T73]      __sys_sendmsg+0xcd/0x170
[ 1049.461721][   T73]      do_syscall_64+0xc6/0x1e0
[ 1049.461721][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1049.461721][   T73] 
[ 1049.463274][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1049.463274][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1049.463274][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1049.463274][   T73]      ipv6_find_idev+0x102/0x170
[ 1049.463274][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1049.463274][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1049.463274][   T73]      netlink_rcv_skb+0x130/0x360
[ 1049.463274][   T73]      netlink_unicast+0x449/0x710
[ 1049.463274][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1049.463274][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1049.463274][   T73]      ___sys_sendmsg+0xee/0x170
[ 1049.463274][   T73]      __sys_sendmsg+0xcd/0x170
[ 1049.463274][   T73]      do_syscall_64+0xc6/0x1e0
[ 1049.463274][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1049.463274][   T73] 
[ 1049.464990][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1049.465260][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1049.465260][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1049.465260][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1049.465260][   T73]      fib6_nh_init+0xa22/0x1580
[ 1049.465260][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1049.465260][   T73]      ip6_route_add+0x1c/0x140
[ 1049.465260][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1049.465260][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1049.465260][   T73]      netlink_rcv_skb+0x130/0x360
[ 1049.465260][   T73]      netlink_unicast+0x449/0x710
[ 1049.465260][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1049.465260][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1049.465260][   T73]      ___sys_sendmsg+0xee/0x170
[ 1049.465260][   T73]      __sys_sendmsg+0xcd/0x170
[ 1049.465260][   T73]      do_syscall_64+0xc6/0x1e0
[ 1049.465260][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1049.465260][   T73] 
[ 1049.467346][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1049.467346][   T73]      dst_init+0x84/0x4a0
[ 1049.467346][   T73]      dst_alloc+0x97/0x150
[ 1049.467346][   T73]      ip6_dst_alloc+0x23/0x90
[ 1049.467346][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1049.467346][   T73]      ip6_pol_route+0x56f/0x840
[ 1049.467346][   T73]      fib6_rule_lookup+0x456/0x630
[ 1049.467346][   T73]      ip6_route_input+0x59c/0xa50
[ 1049.467346][   T73]      ipv6_rcv+0x397/0x810
[ 1049.467346][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1049.467346][   T73]      process_backlog+0x101/0x620
[ 1049.467346][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1049.467346][   T73]      net_rx_action+0x495/0xbe0
[ 1049.467346][   T73]      __do_softirq+0x1b5/0x7f6
[ 1049.467346][   T73] 
[ 1049.469178][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1049.469178][   T73]      netdev_get_by_index+0x5e/0x80
[ 1049.469178][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1049.469178][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1049.469178][   T73]      ip6_route_add+0x1c/0x140
[ 1049.469178][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1049.469178][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1049.469178][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1049.469178][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1049.469178][   T73]      netlink_rcv_skb+0x130/0x360
[ 1049.469178][   T73]      netlink_unicast+0x449/0x710
[ 1049.469178][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1049.469178][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1049.469178][   T73]      ___sys_sendmsg+0xee/0x170
[ 1049.469178][   T73]      __sys_sendmsg+0xcd/0x170
[ 1049.469178][   T73]      do_syscall_64+0xc6/0x1e0
[ 1049.469178][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1049.469178][   T73] 
[ 1049.471508][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1049.471508][   T73]      netdev_get_by_index+0x5e/0x80
[ 1049.471508][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1049.471508][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1049.471508][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1049.471508][   T73]      ipv6_add_addr+0x411/0x2000
[ 1049.471508][   T73]      inet6_addr_add+0x30e/0xa40
[ 1049.471508][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1049.471508][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1049.471508][   T73]      netlink_rcv_skb+0x130/0x360
[ 1049.471508][   T73]      netlink_unicast+0x449/0x710
[ 1049.471508][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1049.471508][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1049.471508][   T73]      ___sys_sendmsg+0xee/0x170
[ 1049.471508][   T73]      __sys_sendmsg+0xcd/0x170
[ 1049.471508][   T73]      do_syscall_64+0xc6/0x1e0
[ 1049.471508][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1049.471508][   T73] 
[ 1049.473765][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1049.473765][   T73]      netdev_get_by_index+0x5e/0x80
[ 1049.473765][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1049.473765][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1049.473765][   T73]      ip6_route_add+0x1c/0x140
[ 1049.473765][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1049.473765][   T73]      addrconf_add_dev+0xe2/0x170
[ 1049.473765][   T73]      inet6_addr_add+0x12f/0xa40
[ 1049.473765][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1049.473765][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1049.473765][   T73]      netlink_rcv_skb+0x130/0x360
[ 1049.473765][   T73]      netlink_unicast+0x449/0x710
[ 1049.473765][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1049.473765][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1049.473765][   T73]      ___sys_sendmsg+0xee/0x170
[ 1049.473765][   T73]      __sys_sendmsg+0xcd/0x170
[ 1049.473765][   T73]      do_syscall_64+0xc6/0x1e0
[ 1049.473765][   T73] 
[ 1049.475934][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1049.475934][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1049.475934][   T73]      ipv6_find_idev+0x102/0x170
[ 1049.475934][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1049.475934][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1049.475934][   T73]      netlink_rcv_skb+0x130/0x360
[ 1049.475934][   T73]      netlink_unicast+0x449/0x710
[ 1049.475934][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1049.475934][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1049.475934][   T73]      ___sys_sendmsg+0xee/0x170
[ 1049.475934][   T73]      __sys_sendmsg+0xcd/0x170
[ 1049.475934][   T73]      do_syscall_64+0xc6/0x1e0
[ 1049.475934][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1049.475934][   T73] 
[ 1049.477670][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1049.477670][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1049.477670][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1049.477670][   T73]      ipv6_find_idev+0x102/0x170
[ 1049.477670][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1049.477670][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1049.477670][   T73]      netlink_rcv_skb+0x130/0x360
[ 1049.477670][   T73]      netlink_unicast+0x449/0x710
[ 1049.477670][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1049.477670][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1049.477670][   T73]      ___sys_sendmsg+0xee/0x170
[ 1049.477670][   T73]      __sys_sendmsg+0xcd/0x170
[ 1049.477670][   T73]      do_syscall_64+0xc6/0x1e0
[ 1049.477670][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1049.477670][   T73] 
[ 1049.479622][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1049.480348][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1049.480348][   T73]      netdev_get_by_index+0x5e/0x80
[ 1049.480348][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1049.480348][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1049.480348][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1049.480348][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1049.480348][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1049.480348][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1049.480348][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1049.480348][   T73]      addrconf_dad_begin+0x310/0x670
[ 1049.480348][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1049.480348][   T73]      process_one_work+0x84d/0x18a0
[ 1049.480348][   T73]      worker_thread+0x587/0xd30
[ 1049.480348][   T73]      kthread+0x28a/0x350
[ 1049.480348][   T73]      ret_from_fork+0x31/0x70
[ 1049.480348][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1049.480348][   T73] 
[ 1049.482285][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1049.482285][   T73]      netdev_get_by_index+0x5e/0x80
[ 1049.482285][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1049.482285][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1049.482285][   T73]      ip6_route_add+0x1c/0x140
[ 1049.482285][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1049.482285][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1049.482285][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1049.482285][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1049.482285][   T73]      netlink_rcv_skb+0x130/0x360
[ 1049.482285][   T73]      netlink_unicast+0x449/0x710
[ 1049.482285][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1049.482285][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1049.482285][   T73]      ___sys_sendmsg+0xee/0x170
[ 1049.482285][   T73]      __sys_sendmsg+0xcd/0x170
[ 1049.482285][   T73]      do_syscall_64+0xc6/0x1e0
[ 1049.482285][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1049.482285][   T73] 
[ 1049.484485][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1049.484485][   T73]      netdev_get_by_index+0x5e/0x80
[ 1049.484485][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1049.484485][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1049.484485][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1049.484485][   T73]      ipv6_add_addr+0x411/0x2000
[ 1049.484485][   T73]      inet6_addr_add+0x30e/0xa40
[ 1049.484485][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1049.484485][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1049.484485][   T73]      netlink_rcv_skb+0x130/0x360
[ 1049.484485][   T73]      netlink_unicast+0x449/0x710
[ 1049.484485][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1049.484485][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1049.484485][   T73]      ___sys_sendmsg+0xee/0x170
[ 1049.484485][   T73]      __sys_sendmsg+0xcd/0x170
[ 1049.484485][   T73]      do_syscall_64+0xc6/0x1e0
[ 1049.484485][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1049.484485][   T73] 
[ 1049.486678][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1049.486678][   T73]      netdev_get_by_index+0x5e/0x80
[ 1049.486678][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1049.486678][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1049.486678][   T73]      ip6_route_add+0x1c/0x140
[ 1049.486678][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1049.486678][   T73]      addrconf_add_dev+0xe2/0x170
[ 1049.486678][   T73]      inet6_addr_add+0x12f/0xa40
[ 1049.486678][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1049.486678][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1049.486678][   T73]      netlink_rcv_skb+0x130/0x360
[ 1049.486678][   T73]      netlink_unicast+0x449/0x710
[ 1049.486678][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1049.486678][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1049.486678][   T73]      ___sys_sendmsg+0xee/0x170
[ 1049.486678][   T73]      __sys_sendmsg+0xcd/0x170
[ 1049.486678][   T73]      do_syscall_64+0xc6/0x1e0
[ 1049.486678][   T73] 
[ 1049.488907][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1049.488907][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1049.488907][   T73]      ipv6_find_idev+0x102/0x170
[ 1049.488907][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1049.488907][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1049.488907][   T73]      netlink_rcv_skb+0x130/0x360
[ 1049.488907][   T73]      netlink_unicast+0x449/0x710
[ 1049.488907][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1049.488907][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1049.488907][   T73]      ___sys_sendmsg+0xee/0x170
[ 1049.488907][   T73]      __sys_sendmsg+0xcd/0x170
[ 1049.488907][   T73]      do_syscall_64+0xc6/0x1e0
[ 1049.488907][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1049.488907][   T73] 
[ 1049.490642][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1049.490642][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1049.490642][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1049.490642][   T73]      ipv6_find_idev+0x102/0x170
[ 1049.490642][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1049.490642][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1049.490642][   T73]      netlink_rcv_skb+0x130/0x360
[ 1049.490642][   T73]      netlink_unicast+0x449/0x710
[ 1049.490642][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1049.490642][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1049.490642][   T73]      ___sys_sendmsg+0xee/0x170
[ 1049.490642][   T73]      __sys_sendmsg+0xcd/0x170
[ 1049.490642][   T73]      do_syscall_64+0xc6/0x1e0
[ 1049.490642][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1049.490642][   T73] 
[ 1059.591776][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1059.592411][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1059.592411][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1059.592411][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1059.592411][   T73]      fib6_nh_init+0xa22/0x1580
[ 1059.592411][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1059.592411][   T73]      ip6_route_add+0x1c/0x140
[ 1059.592411][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1059.592411][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1059.592411][   T73]      netlink_rcv_skb+0x130/0x360
[ 1059.592411][   T73]      netlink_unicast+0x449/0x710
[ 1059.592411][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1059.592411][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1059.592411][   T73]      ___sys_sendmsg+0xee/0x170
[ 1059.592411][   T73]      __sys_sendmsg+0xcd/0x170
[ 1059.592411][   T73]      do_syscall_64+0xc6/0x1e0
[ 1059.592411][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1059.592411][   T73] 
[ 1059.595328][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1059.595328][   T73]      dst_init+0x84/0x4a0
[ 1059.595328][   T73]      dst_alloc+0x97/0x150
[ 1059.595328][   T73]      ip6_dst_alloc+0x23/0x90
[ 1059.595328][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1059.595328][   T73]      ip6_pol_route+0x56f/0x840
[ 1059.595328][   T73]      fib6_rule_lookup+0x456/0x630
[ 1059.595328][   T73]      ip6_route_input+0x59c/0xa50
[ 1059.595328][   T73]      ipv6_rcv+0x397/0x810
[ 1059.595328][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1059.595328][   T73]      process_backlog+0x101/0x620
[ 1059.595328][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1059.595328][   T73]      net_rx_action+0x495/0xbe0
[ 1059.595328][   T73]      __do_softirq+0x1b5/0x7f6
[ 1059.595328][   T73] 
[ 1059.597931][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1059.597931][   T73]      netdev_get_by_index+0x5e/0x80
[ 1059.597931][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1059.597931][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1059.597931][   T73]      ip6_route_add+0x1c/0x140
[ 1059.597931][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1059.597931][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1059.597931][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1059.597931][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1059.597931][   T73]      netlink_rcv_skb+0x130/0x360
[ 1059.597931][   T73]      netlink_unicast+0x449/0x710
[ 1059.597931][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1059.597931][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1059.597931][   T73]      ___sys_sendmsg+0xee/0x170
[ 1059.597931][   T73]      __sys_sendmsg+0xcd/0x170
[ 1059.597931][   T73]      do_syscall_64+0xc6/0x1e0
[ 1059.597931][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1059.597931][   T73] 
[ 1059.601052][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1059.601052][   T73]      netdev_get_by_index+0x5e/0x80
[ 1059.601052][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1059.601052][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1059.601052][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1059.601052][   T73]      ipv6_add_addr+0x411/0x2000
[ 1059.601052][   T73]      inet6_addr_add+0x30e/0xa40
[ 1059.601052][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1059.601052][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1059.601052][   T73]      netlink_rcv_skb+0x130/0x360
[ 1059.601052][   T73]      netlink_unicast+0x449/0x710
[ 1059.601052][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1059.601052][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1059.601052][   T73]      ___sys_sendmsg+0xee/0x170
[ 1059.601052][   T73]      __sys_sendmsg+0xcd/0x170
[ 1059.601052][   T73]      do_syscall_64+0xc6/0x1e0
[ 1059.601052][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1059.601052][   T73] 
[ 1059.604127][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1059.604127][   T73]      netdev_get_by_index+0x5e/0x80
[ 1059.604127][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1059.604127][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1059.604127][   T73]      ip6_route_add+0x1c/0x140
[ 1059.604127][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1059.604127][   T73]      addrconf_add_dev+0xe2/0x170
[ 1059.604127][   T73]      inet6_addr_add+0x12f/0xa40
[ 1059.604127][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1059.604127][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1059.604127][   T73]      netlink_rcv_skb+0x130/0x360
[ 1059.604127][   T73]      netlink_unicast+0x449/0x710
[ 1059.604127][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1059.604127][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1059.604127][   T73]      ___sys_sendmsg+0xee/0x170
[ 1059.604127][   T73]      __sys_sendmsg+0xcd/0x170
[ 1059.604127][   T73]      do_syscall_64+0xc6/0x1e0
[ 1059.604127][   T73] 
[ 1059.607123][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1059.607123][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1059.607123][   T73]      ipv6_find_idev+0x102/0x170
[ 1059.607123][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1059.607123][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1059.607123][   T73]      netlink_rcv_skb+0x130/0x360
[ 1059.607123][   T73]      netlink_unicast+0x449/0x710
[ 1059.607123][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1059.607123][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1059.607123][   T73]      ___sys_sendmsg+0xee/0x170
[ 1059.607123][   T73]      __sys_sendmsg+0xcd/0x170
[ 1059.607123][   T73]      do_syscall_64+0xc6/0x1e0
[ 1059.607123][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1059.607123][   T73] 
[ 1059.609422][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1059.609422][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1059.609422][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1059.609422][   T73]      ipv6_find_idev+0x102/0x170
[ 1059.609422][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1059.609422][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1059.609422][   T73]      netlink_rcv_skb+0x130/0x360
[ 1059.609422][   T73]      netlink_unicast+0x449/0x710
[ 1059.609422][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1059.609422][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1059.609422][   T73]      ___sys_sendmsg+0xee/0x170
[ 1059.609422][   T73]      __sys_sendmsg+0xcd/0x170
[ 1059.609422][   T73]      do_syscall_64+0xc6/0x1e0
[ 1059.609422][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1059.609422][   T73] 
[ 1059.612049][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1059.612492][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1059.612492][   T73]      netdev_get_by_index+0x5e/0x80
[ 1059.612492][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1059.612492][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1059.612492][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1059.612492][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1059.612492][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1059.612492][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1059.612492][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1059.612492][   T73]      addrconf_dad_begin+0x310/0x670
[ 1059.612492][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1059.612492][   T73]      process_one_work+0x84d/0x18a0
[ 1059.612492][   T73]      worker_thread+0x587/0xd30
[ 1059.612492][   T73]      kthread+0x28a/0x350
[ 1059.612492][   T73]      ret_from_fork+0x31/0x70
[ 1059.612492][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1059.612492][   T73] 
[ 1059.615330][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1059.615330][   T73]      netdev_get_by_index+0x5e/0x80
[ 1059.615330][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1059.615330][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1059.615330][   T73]      ip6_route_add+0x1c/0x140
[ 1059.615330][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1059.615330][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1059.615330][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1059.615330][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1059.615330][   T73]      netlink_rcv_skb+0x130/0x360
[ 1059.615330][   T73]      netlink_unicast+0x449/0x710
[ 1059.615330][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1059.615330][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1059.615330][   T73]      ___sys_sendmsg+0xee/0x170
[ 1059.615330][   T73]      __sys_sendmsg+0xcd/0x170
[ 1059.615330][   T73]      do_syscall_64+0xc6/0x1e0
[ 1059.615330][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1059.615330][   T73] 
[ 1059.617460][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1059.617460][   T73]      netdev_get_by_index+0x5e/0x80
[ 1059.617460][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1059.617460][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1059.617460][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1059.617460][   T73]      ipv6_add_addr+0x411/0x2000
[ 1059.617460][   T73]      inet6_addr_add+0x30e/0xa40
[ 1059.617460][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1059.617460][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1059.617460][   T73]      netlink_rcv_skb+0x130/0x360
[ 1059.617460][   T73]      netlink_unicast+0x449/0x710
[ 1059.617460][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1059.617460][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1059.617460][   T73]      ___sys_sendmsg+0xee/0x170
[ 1059.617460][   T73]      __sys_sendmsg+0xcd/0x170
[ 1059.617460][   T73]      do_syscall_64+0xc6/0x1e0
[ 1059.617460][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1059.617460][   T73] 
[ 1059.619574][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1059.619574][   T73]      netdev_get_by_index+0x5e/0x80
[ 1059.619574][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1059.619574][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1059.619574][   T73]      ip6_route_add+0x1c/0x140
[ 1059.619574][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1059.619574][   T73]      addrconf_add_dev+0xe2/0x170
[ 1059.619574][   T73]      inet6_addr_add+0x12f/0xa40
[ 1059.619574][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1059.619574][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1059.619574][   T73]      netlink_rcv_skb+0x130/0x360
[ 1059.619574][   T73]      netlink_unicast+0x449/0x710
[ 1059.619574][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1059.619574][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1059.619574][   T73]      ___sys_sendmsg+0xee/0x170
[ 1059.619574][   T73]      __sys_sendmsg+0xcd/0x170
[ 1059.619574][   T73]      do_syscall_64+0xc6/0x1e0
[ 1059.619574][   T73] 
[ 1059.621710][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1059.621710][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1059.621710][   T73]      ipv6_find_idev+0x102/0x170
[ 1059.621710][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1059.621710][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1059.621710][   T73]      netlink_rcv_skb+0x130/0x360
[ 1059.621710][   T73]      netlink_unicast+0x449/0x710
[ 1059.621710][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1059.621710][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1059.621710][   T73]      ___sys_sendmsg+0xee/0x170
[ 1059.621710][   T73]      __sys_sendmsg+0xcd/0x170
[ 1059.621710][   T73]      do_syscall_64+0xc6/0x1e0
[ 1059.621710][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1059.621710][   T73] 
[ 1059.623285][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1059.623285][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1059.623285][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1059.623285][   T73]      ipv6_find_idev+0x102/0x170
[ 1059.623285][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1059.623285][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1059.623285][   T73]      netlink_rcv_skb+0x130/0x360
[ 1059.623285][   T73]      netlink_unicast+0x449/0x710
[ 1059.623285][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1059.623285][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1059.623285][   T73]      ___sys_sendmsg+0xee/0x170
[ 1059.623285][   T73]      __sys_sendmsg+0xcd/0x170
[ 1059.623285][   T73]      do_syscall_64+0xc6/0x1e0
[ 1059.623285][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1059.623285][   T73] 
[ 1059.625018][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1059.625311][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1059.625311][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1059.625311][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1059.625311][   T73]      fib6_nh_init+0xa22/0x1580
[ 1059.625311][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1059.625311][   T73]      ip6_route_add+0x1c/0x140
[ 1059.625311][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1059.625311][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1059.625311][   T73]      netlink_rcv_skb+0x130/0x360
[ 1059.625311][   T73]      netlink_unicast+0x449/0x710
[ 1059.625311][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1059.625311][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1059.625311][   T73]      ___sys_sendmsg+0xee/0x170
[ 1059.625311][   T73]      __sys_sendmsg+0xcd/0x170
[ 1059.625311][   T73]      do_syscall_64+0xc6/0x1e0
[ 1059.625311][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1059.625311][   T73] 
[ 1059.627351][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1059.627351][   T73]      dst_init+0x84/0x4a0
[ 1059.627351][   T73]      dst_alloc+0x97/0x150
[ 1059.627351][   T73]      ip6_dst_alloc+0x23/0x90
[ 1059.627351][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1059.627351][   T73]      ip6_pol_route+0x56f/0x840
[ 1059.627351][   T73]      fib6_rule_lookup+0x456/0x630
[ 1059.627351][   T73]      ip6_route_input+0x59c/0xa50
[ 1059.627351][   T73]      ipv6_rcv+0x397/0x810
[ 1059.627351][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1059.627351][   T73]      process_backlog+0x101/0x620
[ 1059.627351][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1059.627351][   T73]      net_rx_action+0x495/0xbe0
[ 1059.627351][   T73]      __do_softirq+0x1b5/0x7f6
[ 1059.627351][   T73] 
[ 1059.629315][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1059.629315][   T73]      netdev_get_by_index+0x5e/0x80
[ 1059.629315][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1059.629315][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1059.629315][   T73]      ip6_route_add+0x1c/0x140
[ 1059.629315][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1059.629315][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1059.629315][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1059.629315][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1059.629315][   T73]      netlink_rcv_skb+0x130/0x360
[ 1059.629315][   T73]      netlink_unicast+0x449/0x710
[ 1059.629315][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1059.629315][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1059.629315][   T73]      ___sys_sendmsg+0xee/0x170
[ 1059.629315][   T73]      __sys_sendmsg+0xcd/0x170
[ 1059.629315][   T73]      do_syscall_64+0xc6/0x1e0
[ 1059.629315][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1059.629315][   T73] 
[ 1059.631874][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1059.631874][   T73]      netdev_get_by_index+0x5e/0x80
[ 1059.631874][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1059.631874][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1059.631874][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1059.631874][   T73]      ipv6_add_addr+0x411/0x2000
[ 1059.631874][   T73]      inet6_addr_add+0x30e/0xa40
[ 1059.631874][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1059.631874][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1059.631874][   T73]      netlink_rcv_skb+0x130/0x360
[ 1059.631874][   T73]      netlink_unicast+0x449/0x710
[ 1059.631874][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1059.631874][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1059.631874][   T73]      ___sys_sendmsg+0xee/0x170
[ 1059.631874][   T73]      __sys_sendmsg+0xcd/0x170
[ 1059.631874][   T73]      do_syscall_64+0xc6/0x1e0
[ 1059.631874][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1059.631874][   T73] 
[ 1059.634261][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1059.634261][   T73]      netdev_get_by_index+0x5e/0x80
[ 1059.634261][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1059.634261][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1059.634261][   T73]      ip6_route_add+0x1c/0x140
[ 1059.634261][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1059.634261][   T73]      addrconf_add_dev+0xe2/0x170
[ 1059.634261][   T73]      inet6_addr_add+0x12f/0xa40
[ 1059.634261][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1059.634261][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1059.634261][   T73]      netlink_rcv_skb+0x130/0x360
[ 1059.634261][   T73]      netlink_unicast+0x449/0x710
[ 1059.634261][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1059.634261][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1059.634261][   T73]      ___sys_sendmsg+0xee/0x170
[ 1059.634261][   T73]      __sys_sendmsg+0xcd/0x170
[ 1059.634261][   T73]      do_syscall_64+0xc6/0x1e0
[ 1059.634261][   T73] 
[ 1059.636541][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1059.636541][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1059.636541][   T73]      ipv6_find_idev+0x102/0x170
[ 1059.636541][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1059.636541][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1059.636541][   T73]      netlink_rcv_skb+0x130/0x360
[ 1059.636541][   T73]      netlink_unicast+0x449/0x710
[ 1059.636541][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1059.636541][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1059.636541][   T73]      ___sys_sendmsg+0xee/0x170
[ 1059.636541][   T73]      __sys_sendmsg+0xcd/0x170
[ 1059.636541][   T73]      do_syscall_64+0xc6/0x1e0
[ 1059.636541][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1059.636541][   T73] 
[ 1059.638378][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1059.638378][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1059.638378][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1059.638378][   T73]      ipv6_find_idev+0x102/0x170
[ 1059.638378][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1059.638378][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1059.638378][   T73]      netlink_rcv_skb+0x130/0x360
[ 1059.638378][   T73]      netlink_unicast+0x449/0x710
[ 1059.638378][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1059.638378][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1059.638378][   T73]      ___sys_sendmsg+0xee/0x170
[ 1059.638378][   T73]      __sys_sendmsg+0xcd/0x170
[ 1059.638378][   T73]      do_syscall_64+0xc6/0x1e0
[ 1059.638378][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1059.638378][   T73] 
[ 1059.640555][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1059.641322][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1059.641322][   T73]      netdev_get_by_index+0x5e/0x80
[ 1059.641322][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1059.641322][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1059.641322][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1059.641322][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1059.641322][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1059.641322][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1059.641322][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1059.641322][   T73]      addrconf_dad_begin+0x310/0x670
[ 1059.641322][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1059.641322][   T73]      process_one_work+0x84d/0x18a0
[ 1059.641322][   T73]      worker_thread+0x587/0xd30
[ 1059.641322][   T73]      kthread+0x28a/0x350
[ 1059.641322][   T73]      ret_from_fork+0x31/0x70
[ 1059.641322][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1059.641322][   T73] 
[ 1059.643319][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1059.643319][   T73]      netdev_get_by_index+0x5e/0x80
[ 1059.643319][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1059.643319][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1059.643319][   T73]      ip6_route_add+0x1c/0x140
[ 1059.643319][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1059.643319][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1059.643319][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1059.643319][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1059.643319][   T73]      netlink_rcv_skb+0x130/0x360
[ 1059.643319][   T73]      netlink_unicast+0x449/0x710
[ 1059.643319][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1059.643319][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1059.643319][   T73]      ___sys_sendmsg+0xee/0x170
[ 1059.643319][   T73]      __sys_sendmsg+0xcd/0x170
[ 1059.643319][   T73]      do_syscall_64+0xc6/0x1e0
[ 1059.643319][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1059.643319][   T73] 
[ 1059.645587][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1059.645587][   T73]      netdev_get_by_index+0x5e/0x80
[ 1059.645587][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1059.645587][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1059.645587][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1059.645587][   T73]      ipv6_add_addr+0x411/0x2000
[ 1059.645587][   T73]      inet6_addr_add+0x30e/0xa40
[ 1059.645587][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1059.645587][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1059.645587][   T73]      netlink_rcv_skb+0x130/0x360
[ 1059.645587][   T73]      netlink_unicast+0x449/0x710
[ 1059.645587][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1059.645587][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1059.645587][   T73]      ___sys_sendmsg+0xee/0x170
[ 1059.645587][   T73]      __sys_sendmsg+0xcd/0x170
[ 1059.645587][   T73]      do_syscall_64+0xc6/0x1e0
[ 1059.645587][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1059.645587][   T73] 
[ 1059.647839][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1059.647839][   T73]      netdev_get_by_index+0x5e/0x80
[ 1059.647839][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1059.647839][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1059.647839][   T73]      ip6_route_add+0x1c/0x140
[ 1059.647839][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1059.647839][   T73]      addrconf_add_dev+0xe2/0x170
[ 1059.647839][   T73]      inet6_addr_add+0x12f/0xa40
[ 1059.647839][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1059.647839][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1059.647839][   T73]      netlink_rcv_skb+0x130/0x360
[ 1059.647839][   T73]      netlink_unicast+0x449/0x710
[ 1059.647839][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1059.647839][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1059.647839][   T73]      ___sys_sendmsg+0xee/0x170
[ 1059.647839][   T73]      __sys_sendmsg+0xcd/0x170
[ 1059.647839][   T73]      do_syscall_64+0xc6/0x1e0
[ 1059.647839][   T73] 
[ 1059.650201][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1059.650201][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1059.650201][   T73]      ipv6_find_idev+0x102/0x170
[ 1059.650201][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1059.650201][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1059.650201][   T73]      netlink_rcv_skb+0x130/0x360
[ 1059.650201][   T73]      netlink_unicast+0x449/0x710
[ 1059.650201][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1059.650201][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1059.650201][   T73]      ___sys_sendmsg+0xee/0x170
[ 1059.650201][   T73]      __sys_sendmsg+0xcd/0x170
[ 1059.650201][   T73]      do_syscall_64+0xc6/0x1e0
[ 1059.650201][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1059.650201][   T73] 
[ 1059.652031][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1059.652031][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1059.652031][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1059.652031][   T73]      ipv6_find_idev+0x102/0x170
[ 1059.652031][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1059.652031][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1059.652031][   T73]      netlink_rcv_skb+0x130/0x360
[ 1059.652031][   T73]      netlink_unicast+0x449/0x710
[ 1059.652031][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1059.652031][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1059.652031][   T73]      ___sys_sendmsg+0xee/0x170
[ 1059.652031][   T73]      __sys_sendmsg+0xcd/0x170
[ 1059.652031][   T73]      do_syscall_64+0xc6/0x1e0
[ 1059.652031][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1059.652031][   T73] 
[ 1069.791743][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1069.792294][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1069.792294][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1069.792294][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1069.792294][   T73]      fib6_nh_init+0xa22/0x1580
[ 1069.792294][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1069.792294][   T73]      ip6_route_add+0x1c/0x140
[ 1069.792294][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1069.792294][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1069.792294][   T73]      netlink_rcv_skb+0x130/0x360
[ 1069.792294][   T73]      netlink_unicast+0x449/0x710
[ 1069.792294][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1069.792294][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1069.792294][   T73]      ___sys_sendmsg+0xee/0x170
[ 1069.792294][   T73]      __sys_sendmsg+0xcd/0x170
[ 1069.792294][   T73]      do_syscall_64+0xc6/0x1e0
[ 1069.792294][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1069.792294][   T73] 
[ 1069.795208][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1069.795208][   T73]      dst_init+0x84/0x4a0
[ 1069.795208][   T73]      dst_alloc+0x97/0x150
[ 1069.795208][   T73]      ip6_dst_alloc+0x23/0x90
[ 1069.795208][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1069.795208][   T73]      ip6_pol_route+0x56f/0x840
[ 1069.795208][   T73]      fib6_rule_lookup+0x456/0x630
[ 1069.795208][   T73]      ip6_route_input+0x59c/0xa50
[ 1069.795208][   T73]      ipv6_rcv+0x397/0x810
[ 1069.795208][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1069.795208][   T73]      process_backlog+0x101/0x620
[ 1069.795208][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1069.795208][   T73]      net_rx_action+0x495/0xbe0
[ 1069.795208][   T73]      __do_softirq+0x1b5/0x7f6
[ 1069.795208][   T73] 
[ 1069.797746][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1069.797746][   T73]      netdev_get_by_index+0x5e/0x80
[ 1069.797746][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1069.797746][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1069.797746][   T73]      ip6_route_add+0x1c/0x140
[ 1069.797746][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1069.797746][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1069.797746][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1069.797746][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1069.797746][   T73]      netlink_rcv_skb+0x130/0x360
[ 1069.797746][   T73]      netlink_unicast+0x449/0x710
[ 1069.797746][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1069.797746][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1069.797746][   T73]      ___sys_sendmsg+0xee/0x170
[ 1069.797746][   T73]      __sys_sendmsg+0xcd/0x170
[ 1069.797746][   T73]      do_syscall_64+0xc6/0x1e0
[ 1069.797746][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1069.797746][   T73] 
[ 1069.800783][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1069.800783][   T73]      netdev_get_by_index+0x5e/0x80
[ 1069.800783][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1069.800783][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1069.800783][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1069.800783][   T73]      ipv6_add_addr+0x411/0x2000
[ 1069.800783][   T73]      inet6_addr_add+0x30e/0xa40
[ 1069.800783][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1069.800783][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1069.800783][   T73]      netlink_rcv_skb+0x130/0x360
[ 1069.800783][   T73]      netlink_unicast+0x449/0x710
[ 1069.800783][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1069.800783][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1069.800783][   T73]      ___sys_sendmsg+0xee/0x170
[ 1069.800783][   T73]      __sys_sendmsg+0xcd/0x170
[ 1069.800783][   T73]      do_syscall_64+0xc6/0x1e0
[ 1069.800783][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1069.800783][   T73] 
[ 1069.803831][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1069.803831][   T73]      netdev_get_by_index+0x5e/0x80
[ 1069.803831][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1069.803831][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1069.803831][   T73]      ip6_route_add+0x1c/0x140
[ 1069.803831][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1069.803831][   T73]      addrconf_add_dev+0xe2/0x170
[ 1069.803831][   T73]      inet6_addr_add+0x12f/0xa40
[ 1069.803831][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1069.803831][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1069.803831][   T73]      netlink_rcv_skb+0x130/0x360
[ 1069.803831][   T73]      netlink_unicast+0x449/0x710
[ 1069.803831][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1069.803831][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1069.803831][   T73]      ___sys_sendmsg+0xee/0x170
[ 1069.803831][   T73]      __sys_sendmsg+0xcd/0x170
[ 1069.803831][   T73]      do_syscall_64+0xc6/0x1e0
[ 1069.803831][   T73] 
[ 1069.806874][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1069.806874][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1069.806874][   T73]      ipv6_find_idev+0x102/0x170
[ 1069.806874][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1069.806874][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1069.806874][   T73]      netlink_rcv_skb+0x130/0x360
[ 1069.806874][   T73]      netlink_unicast+0x449/0x710
[ 1069.806874][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1069.806874][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1069.806874][   T73]      ___sys_sendmsg+0xee/0x170
[ 1069.806874][   T73]      __sys_sendmsg+0xcd/0x170
[ 1069.806874][   T73]      do_syscall_64+0xc6/0x1e0
[ 1069.806874][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1069.806874][   T73] 
[ 1069.809279][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1069.809279][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1069.809279][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1069.809279][   T73]      ipv6_find_idev+0x102/0x170
[ 1069.809279][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1069.809279][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1069.809279][   T73]      netlink_rcv_skb+0x130/0x360
[ 1069.809279][   T73]      netlink_unicast+0x449/0x710
[ 1069.809279][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1069.809279][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1069.809279][   T73]      ___sys_sendmsg+0xee/0x170
[ 1069.809279][   T73]      __sys_sendmsg+0xcd/0x170
[ 1069.809279][   T73]      do_syscall_64+0xc6/0x1e0
[ 1069.809279][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1069.809279][   T73] 
[ 1069.812007][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1069.812532][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1069.812532][   T73]      netdev_get_by_index+0x5e/0x80
[ 1069.812532][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1069.812532][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1069.812532][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1069.812532][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1069.812532][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1069.812532][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1069.812532][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1069.812532][   T73]      addrconf_dad_begin+0x310/0x670
[ 1069.812532][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1069.812532][   T73]      process_one_work+0x84d/0x18a0
[ 1069.812532][   T73]      worker_thread+0x587/0xd30
[ 1069.812532][   T73]      kthread+0x28a/0x350
[ 1069.812532][   T73]      ret_from_fork+0x31/0x70
[ 1069.812532][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1069.812532][   T73] 
[ 1069.815520][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1069.815520][   T73]      netdev_get_by_index+0x5e/0x80
[ 1069.815520][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1069.815520][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1069.815520][   T73]      ip6_route_add+0x1c/0x140
[ 1069.815520][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1069.815520][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1069.815520][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1069.815520][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1069.815520][   T73]      netlink_rcv_skb+0x130/0x360
[ 1069.815520][   T73]      netlink_unicast+0x449/0x710
[ 1069.815520][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1069.815520][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1069.815520][   T73]      ___sys_sendmsg+0xee/0x170
[ 1069.815520][   T73]      __sys_sendmsg+0xcd/0x170
[ 1069.815520][   T73]      do_syscall_64+0xc6/0x1e0
[ 1069.815520][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1069.815520][   T73] 
[ 1069.818613][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1069.818613][   T73]      netdev_get_by_index+0x5e/0x80
[ 1069.818613][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1069.818613][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1069.818613][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1069.818613][   T73]      ipv6_add_addr+0x411/0x2000
[ 1069.818613][   T73]      inet6_addr_add+0x30e/0xa40
[ 1069.818613][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1069.818613][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1069.818613][   T73]      netlink_rcv_skb+0x130/0x360
[ 1069.818613][   T73]      netlink_unicast+0x449/0x710
[ 1069.818613][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1069.818613][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1069.818613][   T73]      ___sys_sendmsg+0xee/0x170
[ 1069.818613][   T73]      __sys_sendmsg+0xcd/0x170
[ 1069.818613][   T73]      do_syscall_64+0xc6/0x1e0
[ 1069.818613][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1069.818613][   T73] 
[ 1069.821605][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1069.821605][   T73]      netdev_get_by_index+0x5e/0x80
[ 1069.821605][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1069.821605][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1069.821605][   T73]      ip6_route_add+0x1c/0x140
[ 1069.821605][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1069.821605][   T73]      addrconf_add_dev+0xe2/0x170
[ 1069.821605][   T73]      inet6_addr_add+0x12f/0xa40
[ 1069.821605][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1069.821605][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1069.821605][   T73]      netlink_rcv_skb+0x130/0x360
[ 1069.821605][   T73]      netlink_unicast+0x449/0x710
[ 1069.821605][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1069.821605][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1069.821605][   T73]      ___sys_sendmsg+0xee/0x170
[ 1069.821605][   T73]      __sys_sendmsg+0xcd/0x170
[ 1069.821605][   T73]      do_syscall_64+0xc6/0x1e0
[ 1069.821605][   T73] 
[ 1069.824516][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1069.824516][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1069.824516][   T73]      ipv6_find_idev+0x102/0x170
[ 1069.824516][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1069.824516][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1069.824516][   T73]      netlink_rcv_skb+0x130/0x360
[ 1069.824516][   T73]      netlink_unicast+0x449/0x710
[ 1069.824516][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1069.824516][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1069.824516][   T73]      ___sys_sendmsg+0xee/0x170
[ 1069.824516][   T73]      __sys_sendmsg+0xcd/0x170
[ 1069.824516][   T73]      do_syscall_64+0xc6/0x1e0
[ 1069.824516][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1069.824516][   T73] 
[ 1069.826859][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1069.826859][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1069.826859][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1069.826859][   T73]      ipv6_find_idev+0x102/0x170
[ 1069.826859][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1069.826859][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1069.826859][   T73]      netlink_rcv_skb+0x130/0x360
[ 1069.826859][   T73]      netlink_unicast+0x449/0x710
[ 1069.826859][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1069.826859][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1069.826859][   T73]      ___sys_sendmsg+0xee/0x170
[ 1069.826859][   T73]      __sys_sendmsg+0xcd/0x170
[ 1069.826859][   T73]      do_syscall_64+0xc6/0x1e0
[ 1069.826859][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1069.826859][   T73] 
[ 1069.829376][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1069.829819][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1069.829819][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1069.829819][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1069.829819][   T73]      fib6_nh_init+0xa22/0x1580
[ 1069.829819][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1069.829819][   T73]      ip6_route_add+0x1c/0x140
[ 1069.829819][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1069.829819][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1069.829819][   T73]      netlink_rcv_skb+0x130/0x360
[ 1069.829819][   T73]      netlink_unicast+0x449/0x710
[ 1069.829819][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1069.829819][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1069.829819][   T73]      ___sys_sendmsg+0xee/0x170
[ 1069.829819][   T73]      __sys_sendmsg+0xcd/0x170
[ 1069.829819][   T73]      do_syscall_64+0xc6/0x1e0
[ 1069.829819][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1069.829819][   T73] 
[ 1069.832277][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1069.832277][   T73]      dst_init+0x84/0x4a0
[ 1069.832277][   T73]      dst_alloc+0x97/0x150
[ 1069.832277][   T73]      ip6_dst_alloc+0x23/0x90
[ 1069.832277][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1069.832277][   T73]      ip6_pol_route+0x56f/0x840
[ 1069.832277][   T73]      fib6_rule_lookup+0x456/0x630
[ 1069.832277][   T73]      ip6_route_input+0x59c/0xa50
[ 1069.832277][   T73]      ipv6_rcv+0x397/0x810
[ 1069.832277][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1069.832277][   T73]      process_backlog+0x101/0x620
[ 1069.832277][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1069.832277][   T73]      net_rx_action+0x495/0xbe0
[ 1069.832277][   T73]      __do_softirq+0x1b5/0x7f6
[ 1069.832277][   T73] 
[ 1069.834403][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1069.834403][   T73]      netdev_get_by_index+0x5e/0x80
[ 1069.834403][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1069.834403][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1069.834403][   T73]      ip6_route_add+0x1c/0x140
[ 1069.834403][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1069.834403][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1069.834403][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1069.834403][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1069.834403][   T73]      netlink_rcv_skb+0x130/0x360
[ 1069.834403][   T73]      netlink_unicast+0x449/0x710
[ 1069.834403][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1069.834403][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1069.834403][   T73]      ___sys_sendmsg+0xee/0x170
[ 1069.834403][   T73]      __sys_sendmsg+0xcd/0x170
[ 1069.834403][   T73]      do_syscall_64+0xc6/0x1e0
[ 1069.834403][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1069.834403][   T73] 
[ 1069.836794][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1069.836794][   T73]      netdev_get_by_index+0x5e/0x80
[ 1069.836794][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1069.836794][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1069.836794][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1069.836794][   T73]      ipv6_add_addr+0x411/0x2000
[ 1069.836794][   T73]      inet6_addr_add+0x30e/0xa40
[ 1069.836794][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1069.836794][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1069.836794][   T73]      netlink_rcv_skb+0x130/0x360
[ 1069.836794][   T73]      netlink_unicast+0x449/0x710
[ 1069.836794][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1069.836794][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1069.836794][   T73]      ___sys_sendmsg+0xee/0x170
[ 1069.836794][   T73]      __sys_sendmsg+0xcd/0x170
[ 1069.836794][   T73]      do_syscall_64+0xc6/0x1e0
[ 1069.836794][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1069.836794][   T73] 
[ 1069.839110][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1069.839110][   T73]      netdev_get_by_index+0x5e/0x80
[ 1069.839110][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1069.839110][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1069.839110][   T73]      ip6_route_add+0x1c/0x140
[ 1069.839110][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1069.839110][   T73]      addrconf_add_dev+0xe2/0x170
[ 1069.839110][   T73]      inet6_addr_add+0x12f/0xa40
[ 1069.839110][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1069.839110][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1069.839110][   T73]      netlink_rcv_skb+0x130/0x360
[ 1069.839110][   T73]      netlink_unicast+0x449/0x710
[ 1069.839110][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1069.839110][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1069.839110][   T73]      ___sys_sendmsg+0xee/0x170
[ 1069.839110][   T73]      __sys_sendmsg+0xcd/0x170
[ 1069.839110][   T73]      do_syscall_64+0xc6/0x1e0
[ 1069.839110][   T73] 
[ 1069.841327][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1069.841327][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1069.841327][   T73]      ipv6_find_idev+0x102/0x170
[ 1069.841327][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1069.841327][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1069.841327][   T73]      netlink_rcv_skb+0x130/0x360
[ 1069.841327][   T73]      netlink_unicast+0x449/0x710
[ 1069.841327][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1069.841327][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1069.841327][   T73]      ___sys_sendmsg+0xee/0x170
[ 1069.841327][   T73]      __sys_sendmsg+0xcd/0x170
[ 1069.841327][   T73]      do_syscall_64+0xc6/0x1e0
[ 1069.841327][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1069.841327][   T73] 
[ 1069.843175][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1069.843175][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1069.843175][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1069.843175][   T73]      ipv6_find_idev+0x102/0x170
[ 1069.843175][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1069.843175][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1069.843175][   T73]      netlink_rcv_skb+0x130/0x360
[ 1069.843175][   T73]      netlink_unicast+0x449/0x710
[ 1069.843175][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1069.843175][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1069.843175][   T73]      ___sys_sendmsg+0xee/0x170
[ 1069.843175][   T73]      __sys_sendmsg+0xcd/0x170
[ 1069.843175][   T73]      do_syscall_64+0xc6/0x1e0
[ 1069.843175][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1069.843175][   T73] 
[ 1069.845286][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1069.845593][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1069.845593][   T73]      netdev_get_by_index+0x5e/0x80
[ 1069.845593][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1069.845593][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1069.845593][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1069.845593][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1069.845593][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1069.845593][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1069.845593][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1069.845593][   T73]      addrconf_dad_begin+0x310/0x670
[ 1069.845593][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1069.845593][   T73]      process_one_work+0x84d/0x18a0
[ 1069.845593][   T73]      worker_thread+0x587/0xd30
[ 1069.845593][   T73]      kthread+0x28a/0x350
[ 1069.845593][   T73]      ret_from_fork+0x31/0x70
[ 1069.845593][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1069.845593][   T73] 
[ 1069.847918][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1069.847918][   T73]      netdev_get_by_index+0x5e/0x80
[ 1069.847918][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1069.847918][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1069.847918][   T73]      ip6_route_add+0x1c/0x140
[ 1069.847918][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1069.847918][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1069.847918][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1069.847918][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1069.847918][   T73]      netlink_rcv_skb+0x130/0x360
[ 1069.847918][   T73]      netlink_unicast+0x449/0x710
[ 1069.847918][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1069.847918][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1069.847918][   T73]      ___sys_sendmsg+0xee/0x170
[ 1069.847918][   T73]      __sys_sendmsg+0xcd/0x170
[ 1069.847918][   T73]      do_syscall_64+0xc6/0x1e0
[ 1069.847918][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1069.847918][   T73] 
[ 1069.850957][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1069.850957][   T73]      netdev_get_by_index+0x5e/0x80
[ 1069.850957][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1069.850957][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1069.850957][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1069.850957][   T73]      ipv6_add_addr+0x411/0x2000
[ 1069.850957][   T73]      inet6_addr_add+0x30e/0xa40
[ 1069.850957][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1069.850957][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1069.850957][   T73]      netlink_rcv_skb+0x130/0x360
[ 1069.850957][   T73]      netlink_unicast+0x449/0x710
[ 1069.850957][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1069.850957][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1069.850957][   T73]      ___sys_sendmsg+0xee/0x170
[ 1069.850957][   T73]      __sys_sendmsg+0xcd/0x170
[ 1069.850957][   T73]      do_syscall_64+0xc6/0x1e0
[ 1069.850957][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1069.850957][   T73] 
[ 1069.853284][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1069.853284][   T73]      netdev_get_by_index+0x5e/0x80
[ 1069.853284][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1069.853284][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1069.853284][   T73]      ip6_route_add+0x1c/0x140
[ 1069.853284][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1069.853284][   T73]      addrconf_add_dev+0xe2/0x170
[ 1069.853284][   T73]      inet6_addr_add+0x12f/0xa40
[ 1069.853284][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1069.853284][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1069.853284][   T73]      netlink_rcv_skb+0x130/0x360
[ 1069.853284][   T73]      netlink_unicast+0x449/0x710
[ 1069.853284][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1069.853284][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1069.853284][   T73]      ___sys_sendmsg+0xee/0x170
[ 1069.853284][   T73]      __sys_sendmsg+0xcd/0x170
[ 1069.853284][   T73]      do_syscall_64+0xc6/0x1e0
[ 1069.853284][   T73] 
[ 1069.855702][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1069.855702][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1069.855702][   T73]      ipv6_find_idev+0x102/0x170
[ 1069.855702][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1069.855702][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1069.855702][   T73]      netlink_rcv_skb+0x130/0x360
[ 1069.855702][   T73]      netlink_unicast+0x449/0x710
[ 1069.855702][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1069.855702][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1069.855702][   T73]      ___sys_sendmsg+0xee/0x170
[ 1069.855702][   T73]      __sys_sendmsg+0xcd/0x170
[ 1069.855702][   T73]      do_syscall_64+0xc6/0x1e0
[ 1069.855702][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1069.855702][   T73] 
[ 1069.857544][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1069.857544][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1069.857544][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1069.857544][   T73]      ipv6_find_idev+0x102/0x170
[ 1069.857544][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1069.857544][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1069.857544][   T73]      netlink_rcv_skb+0x130/0x360
[ 1069.857544][   T73]      netlink_unicast+0x449/0x710
[ 1069.857544][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1069.857544][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1069.857544][   T73]      ___sys_sendmsg+0xee/0x170
[ 1069.857544][   T73]      __sys_sendmsg+0xcd/0x170
[ 1069.857544][   T73]      do_syscall_64+0xc6/0x1e0
[ 1069.857544][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1069.857544][   T73] 
[ 1079.863774][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1079.864184][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1079.864184][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1079.864184][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1079.864184][   T73]      fib6_nh_init+0xa22/0x1580
[ 1079.864184][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1079.864184][   T73]      ip6_route_add+0x1c/0x140
[ 1079.864184][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1079.864184][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1079.864184][   T73]      netlink_rcv_skb+0x130/0x360
[ 1079.864184][   T73]      netlink_unicast+0x449/0x710
[ 1079.864184][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1079.864184][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1079.864184][   T73]      ___sys_sendmsg+0xee/0x170
[ 1079.864184][   T73]      __sys_sendmsg+0xcd/0x170
[ 1079.864184][   T73]      do_syscall_64+0xc6/0x1e0
[ 1079.864184][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1079.864184][   T73] 
[ 1079.866292][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1079.866292][   T73]      dst_init+0x84/0x4a0
[ 1079.866292][   T73]      dst_alloc+0x97/0x150
[ 1079.866292][   T73]      ip6_dst_alloc+0x23/0x90
[ 1079.866292][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1079.866292][   T73]      ip6_pol_route+0x56f/0x840
[ 1079.866292][   T73]      fib6_rule_lookup+0x456/0x630
[ 1079.866292][   T73]      ip6_route_input+0x59c/0xa50
[ 1079.866292][   T73]      ipv6_rcv+0x397/0x810
[ 1079.866292][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1079.866292][   T73]      process_backlog+0x101/0x620
[ 1079.866292][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1079.866292][   T73]      net_rx_action+0x495/0xbe0
[ 1079.866292][   T73]      __do_softirq+0x1b5/0x7f6
[ 1079.866292][   T73] 
[ 1079.868091][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1079.868091][   T73]      netdev_get_by_index+0x5e/0x80
[ 1079.868091][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1079.868091][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1079.868091][   T73]      ip6_route_add+0x1c/0x140
[ 1079.868091][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1079.868091][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1079.868091][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1079.868091][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1079.868091][   T73]      netlink_rcv_skb+0x130/0x360
[ 1079.868091][   T73]      netlink_unicast+0x449/0x710
[ 1079.868091][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1079.868091][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1079.868091][   T73]      ___sys_sendmsg+0xee/0x170
[ 1079.868091][   T73]      __sys_sendmsg+0xcd/0x170
[ 1079.868091][   T73]      do_syscall_64+0xc6/0x1e0
[ 1079.868091][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1079.868091][   T73] 
[ 1079.870301][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1079.870301][   T73]      netdev_get_by_index+0x5e/0x80
[ 1079.870301][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1079.870301][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1079.870301][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1079.870301][   T73]      ipv6_add_addr+0x411/0x2000
[ 1079.870301][   T73]      inet6_addr_add+0x30e/0xa40
[ 1079.870301][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1079.870301][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1079.870301][   T73]      netlink_rcv_skb+0x130/0x360
[ 1079.870301][   T73]      netlink_unicast+0x449/0x710
[ 1079.870301][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1079.870301][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1079.870301][   T73]      ___sys_sendmsg+0xee/0x170
[ 1079.870301][   T73]      __sys_sendmsg+0xcd/0x170
[ 1079.870301][   T73]      do_syscall_64+0xc6/0x1e0
[ 1079.870301][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1079.870301][   T73] 
[ 1079.872495][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1079.872495][   T73]      netdev_get_by_index+0x5e/0x80
[ 1079.872495][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1079.872495][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1079.872495][   T73]      ip6_route_add+0x1c/0x140
[ 1079.872495][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1079.872495][   T73]      addrconf_add_dev+0xe2/0x170
[ 1079.872495][   T73]      inet6_addr_add+0x12f/0xa40
[ 1079.872495][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1079.872495][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1079.872495][   T73]      netlink_rcv_skb+0x130/0x360
[ 1079.872495][   T73]      netlink_unicast+0x449/0x710
[ 1079.872495][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1079.872495][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1079.872495][   T73]      ___sys_sendmsg+0xee/0x170
[ 1079.872495][   T73]      __sys_sendmsg+0xcd/0x170
[ 1079.872495][   T73]      do_syscall_64+0xc6/0x1e0
[ 1079.872495][   T73] 
[ 1079.874662][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1079.874662][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1079.874662][   T73]      ipv6_find_idev+0x102/0x170
[ 1079.874662][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1079.874662][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1079.874662][   T73]      netlink_rcv_skb+0x130/0x360
[ 1079.874662][   T73]      netlink_unicast+0x449/0x710
[ 1079.874662][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1079.874662][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1079.874662][   T73]      ___sys_sendmsg+0xee/0x170
[ 1079.874662][   T73]      __sys_sendmsg+0xcd/0x170
[ 1079.874662][   T73]      do_syscall_64+0xc6/0x1e0
[ 1079.874662][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1079.874662][   T73] 
[ 1079.876354][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1079.876354][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1079.876354][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1079.876354][   T73]      ipv6_find_idev+0x102/0x170
[ 1079.876354][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1079.876354][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1079.876354][   T73]      netlink_rcv_skb+0x130/0x360
[ 1079.876354][   T73]      netlink_unicast+0x449/0x710
[ 1079.876354][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1079.876354][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1079.876354][   T73]      ___sys_sendmsg+0xee/0x170
[ 1079.876354][   T73]      __sys_sendmsg+0xcd/0x170
[ 1079.876354][   T73]      do_syscall_64+0xc6/0x1e0
[ 1079.876354][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1079.876354][   T73] 
[ 1079.878218][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1079.878512][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1079.878512][   T73]      netdev_get_by_index+0x5e/0x80
[ 1079.878512][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1079.878512][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1079.878512][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1079.878512][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1079.878512][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1079.878512][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1079.878512][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1079.878512][   T73]      addrconf_dad_begin+0x310/0x670
[ 1079.878512][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1079.878512][   T73]      process_one_work+0x84d/0x18a0
[ 1079.878512][   T73]      worker_thread+0x587/0xd30
[ 1079.878512][   T73]      kthread+0x28a/0x350
[ 1079.878512][   T73]      ret_from_fork+0x31/0x70
[ 1079.878512][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1079.878512][   T73] 
[ 1079.880629][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1079.880629][   T73]      netdev_get_by_index+0x5e/0x80
[ 1079.880629][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1079.880629][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1079.880629][   T73]      ip6_route_add+0x1c/0x140
[ 1079.880629][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1079.880629][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1079.880629][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1079.880629][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1079.880629][   T73]      netlink_rcv_skb+0x130/0x360
[ 1079.880629][   T73]      netlink_unicast+0x449/0x710
[ 1079.880629][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1079.880629][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1079.880629][   T73]      ___sys_sendmsg+0xee/0x170
[ 1079.880629][   T73]      __sys_sendmsg+0xcd/0x170
[ 1079.880629][   T73]      do_syscall_64+0xc6/0x1e0
[ 1079.880629][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1079.880629][   T73] 
[ 1079.882830][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1079.882830][   T73]      netdev_get_by_index+0x5e/0x80
[ 1079.882830][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1079.882830][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1079.882830][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1079.882830][   T73]      ipv6_add_addr+0x411/0x2000
[ 1079.882830][   T73]      inet6_addr_add+0x30e/0xa40
[ 1079.882830][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1079.882830][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1079.882830][   T73]      netlink_rcv_skb+0x130/0x360
[ 1079.882830][   T73]      netlink_unicast+0x449/0x710
[ 1079.882830][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1079.882830][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1079.882830][   T73]      ___sys_sendmsg+0xee/0x170
[ 1079.882830][   T73]      __sys_sendmsg+0xcd/0x170
[ 1079.882830][   T73]      do_syscall_64+0xc6/0x1e0
[ 1079.882830][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1079.882830][   T73] 
[ 1079.885031][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1079.885031][   T73]      netdev_get_by_index+0x5e/0x80
[ 1079.885031][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1079.885031][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1079.885031][   T73]      ip6_route_add+0x1c/0x140
[ 1079.885031][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1079.885031][   T73]      addrconf_add_dev+0xe2/0x170
[ 1079.885031][   T73]      inet6_addr_add+0x12f/0xa40
[ 1079.885031][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1079.885031][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1079.885031][   T73]      netlink_rcv_skb+0x130/0x360
[ 1079.885031][   T73]      netlink_unicast+0x449/0x710
[ 1079.885031][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1079.885031][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1079.885031][   T73]      ___sys_sendmsg+0xee/0x170
[ 1079.885031][   T73]      __sys_sendmsg+0xcd/0x170
[ 1079.885031][   T73]      do_syscall_64+0xc6/0x1e0
[ 1079.885031][   T73] 
[ 1079.887198][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1079.887198][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1079.887198][   T73]      ipv6_find_idev+0x102/0x170
[ 1079.887198][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1079.887198][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1079.887198][   T73]      netlink_rcv_skb+0x130/0x360
[ 1079.887198][   T73]      netlink_unicast+0x449/0x710
[ 1079.887198][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1079.887198][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1079.887198][   T73]      ___sys_sendmsg+0xee/0x170
[ 1079.887198][   T73]      __sys_sendmsg+0xcd/0x170
[ 1079.887198][   T73]      do_syscall_64+0xc6/0x1e0
[ 1079.887198][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1079.887198][   T73] 
[ 1079.888894][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1079.888894][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1079.888894][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1079.888894][   T73]      ipv6_find_idev+0x102/0x170
[ 1079.888894][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1079.888894][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1079.888894][   T73]      netlink_rcv_skb+0x130/0x360
[ 1079.888894][   T73]      netlink_unicast+0x449/0x710
[ 1079.888894][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1079.888894][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1079.888894][   T73]      ___sys_sendmsg+0xee/0x170
[ 1079.888894][   T73]      __sys_sendmsg+0xcd/0x170
[ 1079.888894][   T73]      do_syscall_64+0xc6/0x1e0
[ 1079.888894][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1079.888894][   T73] 
[ 1079.890739][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1079.891023][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1079.891023][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1079.891023][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1079.891023][   T73]      fib6_nh_init+0xa22/0x1580
[ 1079.891023][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1079.891023][   T73]      ip6_route_add+0x1c/0x140
[ 1079.891023][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1079.891023][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1079.891023][   T73]      netlink_rcv_skb+0x130/0x360
[ 1079.891023][   T73]      netlink_unicast+0x449/0x710
[ 1079.891023][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1079.891023][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1079.891023][   T73]      ___sys_sendmsg+0xee/0x170
[ 1079.891023][   T73]      __sys_sendmsg+0xcd/0x170
[ 1079.891023][   T73]      do_syscall_64+0xc6/0x1e0
[ 1079.891023][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1079.891023][   T73] 
[ 1079.893303][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1079.893303][   T73]      dst_init+0x84/0x4a0
[ 1079.893303][   T73]      dst_alloc+0x97/0x150
[ 1079.893303][   T73]      ip6_dst_alloc+0x23/0x90
[ 1079.893303][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1079.893303][   T73]      ip6_pol_route+0x56f/0x840
[ 1079.893303][   T73]      fib6_rule_lookup+0x456/0x630
[ 1079.893303][   T73]      ip6_route_input+0x59c/0xa50
[ 1079.893303][   T73]      ipv6_rcv+0x397/0x810
[ 1079.893303][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1079.893303][   T73]      process_backlog+0x101/0x620
[ 1079.893303][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1079.893303][   T73]      net_rx_action+0x495/0xbe0
[ 1079.893303][   T73]      __do_softirq+0x1b5/0x7f6
[ 1079.893303][   T73] 
[ 1079.895289][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1079.895289][   T73]      netdev_get_by_index+0x5e/0x80
[ 1079.895289][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1079.895289][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1079.895289][   T73]      ip6_route_add+0x1c/0x140
[ 1079.895289][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1079.895289][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1079.895289][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1079.895289][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1079.895289][   T73]      netlink_rcv_skb+0x130/0x360
[ 1079.895289][   T73]      netlink_unicast+0x449/0x710
[ 1079.895289][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1079.895289][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1079.895289][   T73]      ___sys_sendmsg+0xee/0x170
[ 1079.895289][   T73]      __sys_sendmsg+0xcd/0x170
[ 1079.895289][   T73]      do_syscall_64+0xc6/0x1e0
[ 1079.895289][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1079.895289][   T73] 
[ 1079.897726][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1079.897726][   T73]      netdev_get_by_index+0x5e/0x80
[ 1079.897726][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1079.897726][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1079.897726][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1079.897726][   T73]      ipv6_add_addr+0x411/0x2000
[ 1079.897726][   T73]      inet6_addr_add+0x30e/0xa40
[ 1079.897726][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1079.897726][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1079.897726][   T73]      netlink_rcv_skb+0x130/0x360
[ 1079.897726][   T73]      netlink_unicast+0x449/0x710
[ 1079.897726][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1079.897726][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1079.897726][   T73]      ___sys_sendmsg+0xee/0x170
[ 1079.897726][   T73]      __sys_sendmsg+0xcd/0x170
[ 1079.897726][   T73]      do_syscall_64+0xc6/0x1e0
[ 1079.897726][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1079.897726][   T73] 
[ 1079.900175][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1079.900175][   T73]      netdev_get_by_index+0x5e/0x80
[ 1079.900175][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1079.900175][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1079.900175][   T73]      ip6_route_add+0x1c/0x140
[ 1079.900175][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1079.900175][   T73]      addrconf_add_dev+0xe2/0x170
[ 1079.900175][   T73]      inet6_addr_add+0x12f/0xa40
[ 1079.900175][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1079.900175][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1079.900175][   T73]      netlink_rcv_skb+0x130/0x360
[ 1079.900175][   T73]      netlink_unicast+0x449/0x710
[ 1079.900175][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1079.900175][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1079.900175][   T73]      ___sys_sendmsg+0xee/0x170
[ 1079.900175][   T73]      __sys_sendmsg+0xcd/0x170
[ 1079.900175][   T73]      do_syscall_64+0xc6/0x1e0
[ 1079.900175][   T73] 
[ 1079.902571][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1079.902571][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1079.902571][   T73]      ipv6_find_idev+0x102/0x170
[ 1079.902571][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1079.902571][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1079.902571][   T73]      netlink_rcv_skb+0x130/0x360
[ 1079.902571][   T73]      netlink_unicast+0x449/0x710
[ 1079.902571][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1079.902571][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1079.902571][   T73]      ___sys_sendmsg+0xee/0x170
[ 1079.902571][   T73]      __sys_sendmsg+0xcd/0x170
[ 1079.902571][   T73]      do_syscall_64+0xc6/0x1e0
[ 1079.902571][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1079.902571][   T73] 
[ 1079.904449][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1079.904449][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1079.904449][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1079.904449][   T73]      ipv6_find_idev+0x102/0x170
[ 1079.904449][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1079.904449][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1079.904449][   T73]      netlink_rcv_skb+0x130/0x360
[ 1079.904449][   T73]      netlink_unicast+0x449/0x710
[ 1079.904449][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1079.904449][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1079.904449][   T73]      ___sys_sendmsg+0xee/0x170
[ 1079.904449][   T73]      __sys_sendmsg+0xcd/0x170
[ 1079.904449][   T73]      do_syscall_64+0xc6/0x1e0
[ 1079.904449][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1079.904449][   T73] 
[ 1079.906491][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1079.906862][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1079.906862][   T73]      netdev_get_by_index+0x5e/0x80
[ 1079.906862][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1079.906862][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1079.906862][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1079.906862][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1079.906862][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1079.906862][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1079.906862][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1079.906862][   T73]      addrconf_dad_begin+0x310/0x670
[ 1079.906862][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1079.906862][   T73]      process_one_work+0x84d/0x18a0
[ 1079.906862][   T73]      worker_thread+0x587/0xd30
[ 1079.906862][   T73]      kthread+0x28a/0x350
[ 1079.906862][   T73]      ret_from_fork+0x31/0x70
[ 1079.906862][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1079.906862][   T73] 
[ 1079.909083][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1079.909083][   T73]      netdev_get_by_index+0x5e/0x80
[ 1079.909083][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1079.909083][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1079.909083][   T73]      ip6_route_add+0x1c/0x140
[ 1079.909083][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1079.909083][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1079.909083][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1079.909083][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1079.909083][   T73]      netlink_rcv_skb+0x130/0x360
[ 1079.909083][   T73]      netlink_unicast+0x449/0x710
[ 1079.909083][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1079.909083][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1079.909083][   T73]      ___sys_sendmsg+0xee/0x170
[ 1079.909083][   T73]      __sys_sendmsg+0xcd/0x170
[ 1079.909083][   T73]      do_syscall_64+0xc6/0x1e0
[ 1079.909083][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1079.909083][   T73] 
[ 1079.911601][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1079.911601][   T73]      netdev_get_by_index+0x5e/0x80
[ 1079.911601][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1079.911601][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1079.911601][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1079.911601][   T73]      ipv6_add_addr+0x411/0x2000
[ 1079.911601][   T73]      inet6_addr_add+0x30e/0xa40
[ 1079.911601][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1079.911601][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1079.911601][   T73]      netlink_rcv_skb+0x130/0x360
[ 1079.911601][   T73]      netlink_unicast+0x449/0x710
[ 1079.911601][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1079.911601][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1079.911601][   T73]      ___sys_sendmsg+0xee/0x170
[ 1079.911601][   T73]      __sys_sendmsg+0xcd/0x170
[ 1079.911601][   T73]      do_syscall_64+0xc6/0x1e0
[ 1079.911601][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1079.911601][   T73] 
[ 1079.914044][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1079.914044][   T73]      netdev_get_by_index+0x5e/0x80
[ 1079.914044][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1079.914044][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1079.914044][   T73]      ip6_route_add+0x1c/0x140
[ 1079.914044][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1079.914044][   T73]      addrconf_add_dev+0xe2/0x170
[ 1079.914044][   T73]      inet6_addr_add+0x12f/0xa40
[ 1079.914044][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1079.914044][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1079.914044][   T73]      netlink_rcv_skb+0x130/0x360
[ 1079.914044][   T73]      netlink_unicast+0x449/0x710
[ 1079.914044][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1079.914044][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1079.914044][   T73]      ___sys_sendmsg+0xee/0x170
[ 1079.914044][   T73]      __sys_sendmsg+0xcd/0x170
[ 1079.914044][   T73]      do_syscall_64+0xc6/0x1e0
[ 1079.914044][   T73] 
[ 1079.916464][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1079.916464][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1079.916464][   T73]      ipv6_find_idev+0x102/0x170
[ 1079.916464][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1079.916464][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1079.916464][   T73]      netlink_rcv_skb+0x130/0x360
[ 1079.916464][   T73]      netlink_unicast+0x449/0x710
[ 1079.916464][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1079.916464][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1079.916464][   T73]      ___sys_sendmsg+0xee/0x170
[ 1079.916464][   T73]      __sys_sendmsg+0xcd/0x170
[ 1079.916464][   T73]      do_syscall_64+0xc6/0x1e0
[ 1079.916464][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1079.916464][   T73] 
[ 1079.918339][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1079.918339][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1079.918339][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1079.918339][   T73]      ipv6_find_idev+0x102/0x170
[ 1079.918339][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1079.918339][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1079.918339][   T73]      netlink_rcv_skb+0x130/0x360
[ 1079.918339][   T73]      netlink_unicast+0x449/0x710
[ 1079.918339][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1079.918339][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1079.918339][   T73]      ___sys_sendmsg+0xee/0x170
[ 1079.918339][   T73]      __sys_sendmsg+0xcd/0x170
[ 1079.918339][   T73]      do_syscall_64+0xc6/0x1e0
[ 1079.918339][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1079.918339][   T73] 
[ 1089.927886][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1089.928435][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1089.928435][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1089.928435][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1089.928435][   T73]      fib6_nh_init+0xa22/0x1580
[ 1089.928435][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1089.928435][   T73]      ip6_route_add+0x1c/0x140
[ 1089.928435][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1089.928435][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1089.928435][   T73]      netlink_rcv_skb+0x130/0x360
[ 1089.928435][   T73]      netlink_unicast+0x449/0x710
[ 1089.928435][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1089.928435][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1089.928435][   T73]      ___sys_sendmsg+0xee/0x170
[ 1089.928435][   T73]      __sys_sendmsg+0xcd/0x170
[ 1089.928435][   T73]      do_syscall_64+0xc6/0x1e0
[ 1089.928435][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1089.928435][   T73] 
[ 1089.930562][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1089.930562][   T73]      dst_init+0x84/0x4a0
[ 1089.930562][   T73]      dst_alloc+0x97/0x150
[ 1089.930562][   T73]      ip6_dst_alloc+0x23/0x90
[ 1089.930562][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1089.930562][   T73]      ip6_pol_route+0x56f/0x840
[ 1089.930562][   T73]      fib6_rule_lookup+0x456/0x630
[ 1089.930562][   T73]      ip6_route_input+0x59c/0xa50
[ 1089.930562][   T73]      ipv6_rcv+0x397/0x810
[ 1089.930562][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1089.930562][   T73]      process_backlog+0x101/0x620
[ 1089.930562][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1089.930562][   T73]      net_rx_action+0x495/0xbe0
[ 1089.930562][   T73]      __do_softirq+0x1b5/0x7f6
[ 1089.930562][   T73] 
[ 1089.932404][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1089.932404][   T73]      netdev_get_by_index+0x5e/0x80
[ 1089.932404][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1089.932404][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1089.932404][   T73]      ip6_route_add+0x1c/0x140
[ 1089.932404][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1089.932404][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1089.932404][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1089.932404][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1089.932404][   T73]      netlink_rcv_skb+0x130/0x360
[ 1089.932404][   T73]      netlink_unicast+0x449/0x710
[ 1089.932404][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1089.932404][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1089.932404][   T73]      ___sys_sendmsg+0xee/0x170
[ 1089.932404][   T73]      __sys_sendmsg+0xcd/0x170
[ 1089.932404][   T73]      do_syscall_64+0xc6/0x1e0
[ 1089.932404][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1089.932404][   T73] 
[ 1089.934645][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1089.934645][   T73]      netdev_get_by_index+0x5e/0x80
[ 1089.934645][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1089.934645][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1089.934645][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1089.934645][   T73]      ipv6_add_addr+0x411/0x2000
[ 1089.934645][   T73]      inet6_addr_add+0x30e/0xa40
[ 1089.934645][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1089.934645][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1089.934645][   T73]      netlink_rcv_skb+0x130/0x360
[ 1089.934645][   T73]      netlink_unicast+0x449/0x710
[ 1089.934645][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1089.934645][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1089.934645][   T73]      ___sys_sendmsg+0xee/0x170
[ 1089.934645][   T73]      __sys_sendmsg+0xcd/0x170
[ 1089.934645][   T73]      do_syscall_64+0xc6/0x1e0
[ 1089.934645][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1089.934645][   T73] 
[ 1089.936879][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1089.936879][   T73]      netdev_get_by_index+0x5e/0x80
[ 1089.936879][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1089.936879][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1089.936879][   T73]      ip6_route_add+0x1c/0x140
[ 1089.936879][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1089.936879][   T73]      addrconf_add_dev+0xe2/0x170
[ 1089.936879][   T73]      inet6_addr_add+0x12f/0xa40
[ 1089.936879][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1089.936879][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1089.936879][   T73]      netlink_rcv_skb+0x130/0x360
[ 1089.936879][   T73]      netlink_unicast+0x449/0x710
[ 1089.936879][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1089.936879][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1089.936879][   T73]      ___sys_sendmsg+0xee/0x170
[ 1089.936879][   T73]      __sys_sendmsg+0xcd/0x170
[ 1089.936879][   T73]      do_syscall_64+0xc6/0x1e0
[ 1089.936879][   T73] 
[ 1089.939103][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1089.939103][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1089.939103][   T73]      ipv6_find_idev+0x102/0x170
[ 1089.939103][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1089.939103][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1089.939103][   T73]      netlink_rcv_skb+0x130/0x360
[ 1089.939103][   T73]      netlink_unicast+0x449/0x710
[ 1089.939103][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1089.939103][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1089.939103][   T73]      ___sys_sendmsg+0xee/0x170
[ 1089.939103][   T73]      __sys_sendmsg+0xcd/0x170
[ 1089.939103][   T73]      do_syscall_64+0xc6/0x1e0
[ 1089.939103][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1089.939103][   T73] 
[ 1089.940928][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1089.940928][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1089.940928][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1089.940928][   T73]      ipv6_find_idev+0x102/0x170
[ 1089.940928][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1089.940928][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1089.940928][   T73]      netlink_rcv_skb+0x130/0x360
[ 1089.940928][   T73]      netlink_unicast+0x449/0x710
[ 1089.940928][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1089.940928][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1089.940928][   T73]      ___sys_sendmsg+0xee/0x170
[ 1089.940928][   T73]      __sys_sendmsg+0xcd/0x170
[ 1089.940928][   T73]      do_syscall_64+0xc6/0x1e0
[ 1089.940928][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1089.940928][   T73] 
[ 1089.942823][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1089.943133][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1089.943133][   T73]      netdev_get_by_index+0x5e/0x80
[ 1089.943133][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1089.943133][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1089.943133][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1089.943133][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1089.943133][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1089.943133][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1089.943133][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1089.943133][   T73]      addrconf_dad_begin+0x310/0x670
[ 1089.943133][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1089.943133][   T73]      process_one_work+0x84d/0x18a0
[ 1089.943133][   T73]      worker_thread+0x587/0xd30
[ 1089.943133][   T73]      kthread+0x28a/0x350
[ 1089.943133][   T73]      ret_from_fork+0x31/0x70
[ 1089.943133][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1089.943133][   T73] 
[ 1089.945268][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1089.945268][   T73]      netdev_get_by_index+0x5e/0x80
[ 1089.945268][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1089.945268][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1089.945268][   T73]      ip6_route_add+0x1c/0x140
[ 1089.945268][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1089.945268][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1089.945268][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1089.945268][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1089.945268][   T73]      netlink_rcv_skb+0x130/0x360
[ 1089.945268][   T73]      netlink_unicast+0x449/0x710
[ 1089.945268][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1089.945268][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1089.945268][   T73]      ___sys_sendmsg+0xee/0x170
[ 1089.945268][   T73]      __sys_sendmsg+0xcd/0x170
[ 1089.945268][   T73]      do_syscall_64+0xc6/0x1e0
[ 1089.945268][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1089.945268][   T73] 
[ 1089.947498][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1089.947498][   T73]      netdev_get_by_index+0x5e/0x80
[ 1089.947498][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1089.947498][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1089.947498][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1089.947498][   T73]      ipv6_add_addr+0x411/0x2000
[ 1089.947498][   T73]      inet6_addr_add+0x30e/0xa40
[ 1089.947498][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1089.947498][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1089.947498][   T73]      netlink_rcv_skb+0x130/0x360
[ 1089.947498][   T73]      netlink_unicast+0x449/0x710
[ 1089.947498][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1089.947498][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1089.947498][   T73]      ___sys_sendmsg+0xee/0x170
[ 1089.947498][   T73]      __sys_sendmsg+0xcd/0x170
[ 1089.947498][   T73]      do_syscall_64+0xc6/0x1e0
[ 1089.947498][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1089.947498][   T73] 
[ 1089.949723][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1089.949723][   T73]      netdev_get_by_index+0x5e/0x80
[ 1089.949723][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1089.949723][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1089.949723][   T73]      ip6_route_add+0x1c/0x140
[ 1089.949723][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1089.949723][   T73]      addrconf_add_dev+0xe2/0x170
[ 1089.949723][   T73]      inet6_addr_add+0x12f/0xa40
[ 1089.949723][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1089.949723][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1089.949723][   T73]      netlink_rcv_skb+0x130/0x360
[ 1089.949723][   T73]      netlink_unicast+0x449/0x710
[ 1089.949723][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1089.949723][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1089.949723][   T73]      ___sys_sendmsg+0xee/0x170
[ 1089.949723][   T73]      __sys_sendmsg+0xcd/0x170
[ 1089.949723][   T73]      do_syscall_64+0xc6/0x1e0
[ 1089.949723][   T73] 
[ 1089.951934][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1089.951934][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1089.951934][   T73]      ipv6_find_idev+0x102/0x170
[ 1089.951934][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1089.951934][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1089.951934][   T73]      netlink_rcv_skb+0x130/0x360
[ 1089.951934][   T73]      netlink_unicast+0x449/0x710
[ 1089.951934][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1089.951934][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1089.951934][   T73]      ___sys_sendmsg+0xee/0x170
[ 1089.951934][   T73]      __sys_sendmsg+0xcd/0x170
[ 1089.951934][   T73]      do_syscall_64+0xc6/0x1e0
[ 1089.951934][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1089.951934][   T73] 
[ 1089.953644][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1089.953644][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1089.953644][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1089.953644][   T73]      ipv6_find_idev+0x102/0x170
[ 1089.953644][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1089.953644][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1089.953644][   T73]      netlink_rcv_skb+0x130/0x360
[ 1089.953644][   T73]      netlink_unicast+0x449/0x710
[ 1089.953644][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1089.953644][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1089.953644][   T73]      ___sys_sendmsg+0xee/0x170
[ 1089.953644][   T73]      __sys_sendmsg+0xcd/0x170
[ 1089.953644][   T73]      do_syscall_64+0xc6/0x1e0
[ 1089.953644][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1089.953644][   T73] 
[ 1089.955542][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1089.955842][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1089.955842][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1089.955842][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1089.955842][   T73]      fib6_nh_init+0xa22/0x1580
[ 1089.955842][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1089.955842][   T73]      ip6_route_add+0x1c/0x140
[ 1089.955842][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1089.955842][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1089.955842][   T73]      netlink_rcv_skb+0x130/0x360
[ 1089.955842][   T73]      netlink_unicast+0x449/0x710
[ 1089.955842][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1089.955842][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1089.955842][   T73]      ___sys_sendmsg+0xee/0x170
[ 1089.955842][   T73]      __sys_sendmsg+0xcd/0x170
[ 1089.955842][   T73]      do_syscall_64+0xc6/0x1e0
[ 1089.955842][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1089.955842][   T73] 
[ 1089.958115][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1089.958115][   T73]      dst_init+0x84/0x4a0
[ 1089.958115][   T73]      dst_alloc+0x97/0x150
[ 1089.958115][   T73]      ip6_dst_alloc+0x23/0x90
[ 1089.958115][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1089.958115][   T73]      ip6_pol_route+0x56f/0x840
[ 1089.958115][   T73]      fib6_rule_lookup+0x456/0x630
[ 1089.958115][   T73]      ip6_route_input+0x59c/0xa50
[ 1089.958115][   T73]      ipv6_rcv+0x397/0x810
[ 1089.958115][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1089.958115][   T73]      process_backlog+0x101/0x620
[ 1089.958115][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1089.958115][   T73]      net_rx_action+0x495/0xbe0
[ 1089.958115][   T73]      __do_softirq+0x1b5/0x7f6
[ 1089.958115][   T73] 
[ 1089.960190][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1089.960190][   T73]      netdev_get_by_index+0x5e/0x80
[ 1089.960190][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1089.960190][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1089.960190][   T73]      ip6_route_add+0x1c/0x140
[ 1089.960190][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1089.960190][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1089.960190][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1089.960190][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1089.960190][   T73]      netlink_rcv_skb+0x130/0x360
[ 1089.960190][   T73]      netlink_unicast+0x449/0x710
[ 1089.960190][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1089.960190][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1089.960190][   T73]      ___sys_sendmsg+0xee/0x170
[ 1089.960190][   T73]      __sys_sendmsg+0xcd/0x170
[ 1089.960190][   T73]      do_syscall_64+0xc6/0x1e0
[ 1089.960190][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1089.960190][   T73] 
[ 1089.962669][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1089.962669][   T73]      netdev_get_by_index+0x5e/0x80
[ 1089.962669][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1089.962669][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1089.962669][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1089.962669][   T73]      ipv6_add_addr+0x411/0x2000
[ 1089.962669][   T73]      inet6_addr_add+0x30e/0xa40
[ 1089.962669][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1089.962669][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1089.962669][   T73]      netlink_rcv_skb+0x130/0x360
[ 1089.962669][   T73]      netlink_unicast+0x449/0x710
[ 1089.962669][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1089.962669][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1089.962669][   T73]      ___sys_sendmsg+0xee/0x170
[ 1089.962669][   T73]      __sys_sendmsg+0xcd/0x170
[ 1089.962669][   T73]      do_syscall_64+0xc6/0x1e0
[ 1089.962669][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1089.962669][   T73] 
[ 1089.965101][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1089.965101][   T73]      netdev_get_by_index+0x5e/0x80
[ 1089.965101][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1089.965101][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1089.965101][   T73]      ip6_route_add+0x1c/0x140
[ 1089.965101][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1089.965101][   T73]      addrconf_add_dev+0xe2/0x170
[ 1089.965101][   T73]      inet6_addr_add+0x12f/0xa40
[ 1089.965101][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1089.965101][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1089.965101][   T73]      netlink_rcv_skb+0x130/0x360
[ 1089.965101][   T73]      netlink_unicast+0x449/0x710
[ 1089.965101][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1089.965101][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1089.965101][   T73]      ___sys_sendmsg+0xee/0x170
[ 1089.965101][   T73]      __sys_sendmsg+0xcd/0x170
[ 1089.965101][   T73]      do_syscall_64+0xc6/0x1e0
[ 1089.965101][   T73] 
[ 1089.967535][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1089.967535][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1089.967535][   T73]      ipv6_find_idev+0x102/0x170
[ 1089.967535][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1089.967535][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1089.967535][   T73]      netlink_rcv_skb+0x130/0x360
[ 1089.967535][   T73]      netlink_unicast+0x449/0x710
[ 1089.967535][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1089.967535][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1089.967535][   T73]      ___sys_sendmsg+0xee/0x170
[ 1089.967535][   T73]      __sys_sendmsg+0xcd/0x170
[ 1089.967535][   T73]      do_syscall_64+0xc6/0x1e0
[ 1089.967535][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1089.967535][   T73] 
[ 1089.969482][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1089.969482][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1089.969482][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1089.969482][   T73]      ipv6_find_idev+0x102/0x170
[ 1089.969482][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1089.969482][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1089.969482][   T73]      netlink_rcv_skb+0x130/0x360
[ 1089.969482][   T73]      netlink_unicast+0x449/0x710
[ 1089.969482][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1089.969482][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1089.969482][   T73]      ___sys_sendmsg+0xee/0x170
[ 1089.969482][   T73]      __sys_sendmsg+0xcd/0x170
[ 1089.969482][   T73]      do_syscall_64+0xc6/0x1e0
[ 1089.969482][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1089.969482][   T73] 
[ 1089.971569][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1089.972391][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1089.972391][   T73]      netdev_get_by_index+0x5e/0x80
[ 1089.972391][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1089.972391][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1089.972391][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1089.972391][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1089.972391][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1089.972391][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1089.972391][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1089.972391][   T73]      addrconf_dad_begin+0x310/0x670
[ 1089.972391][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1089.972391][   T73]      process_one_work+0x84d/0x18a0
[ 1089.972391][   T73]      worker_thread+0x587/0xd30
[ 1089.972391][   T73]      kthread+0x28a/0x350
[ 1089.972391][   T73]      ret_from_fork+0x31/0x70
[ 1089.972391][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1089.972391][   T73] 
[ 1089.974523][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1089.974523][   T73]      netdev_get_by_index+0x5e/0x80
[ 1089.974523][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1089.974523][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1089.974523][   T73]      ip6_route_add+0x1c/0x140
[ 1089.974523][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1089.974523][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1089.974523][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1089.974523][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1089.974523][   T73]      netlink_rcv_skb+0x130/0x360
[ 1089.974523][   T73]      netlink_unicast+0x449/0x710
[ 1089.974523][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1089.974523][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1089.974523][   T73]      ___sys_sendmsg+0xee/0x170
[ 1089.974523][   T73]      __sys_sendmsg+0xcd/0x170
[ 1089.974523][   T73]      do_syscall_64+0xc6/0x1e0
[ 1089.974523][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1089.974523][   T73] 
[ 1089.976761][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1089.976761][   T73]      netdev_get_by_index+0x5e/0x80
[ 1089.976761][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1089.976761][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1089.976761][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1089.976761][   T73]      ipv6_add_addr+0x411/0x2000
[ 1089.976761][   T73]      inet6_addr_add+0x30e/0xa40
[ 1089.976761][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1089.976761][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1089.976761][   T73]      netlink_rcv_skb+0x130/0x360
[ 1089.976761][   T73]      netlink_unicast+0x449/0x710
[ 1089.976761][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1089.976761][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1089.976761][   T73]      ___sys_sendmsg+0xee/0x170
[ 1089.976761][   T73]      __sys_sendmsg+0xcd/0x170
[ 1089.976761][   T73]      do_syscall_64+0xc6/0x1e0
[ 1089.976761][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1089.976761][   T73] 
[ 1089.979253][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1089.979253][   T73]      netdev_get_by_index+0x5e/0x80
[ 1089.979253][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1089.979253][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1089.979253][   T73]      ip6_route_add+0x1c/0x140
[ 1089.979253][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1089.979253][   T73]      addrconf_add_dev+0xe2/0x170
[ 1089.979253][   T73]      inet6_addr_add+0x12f/0xa40
[ 1089.979253][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1089.979253][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1089.979253][   T73]      netlink_rcv_skb+0x130/0x360
[ 1089.979253][   T73]      netlink_unicast+0x449/0x710
[ 1089.979253][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1089.979253][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1089.979253][   T73]      ___sys_sendmsg+0xee/0x170
[ 1089.979253][   T73]      __sys_sendmsg+0xcd/0x170
[ 1089.979253][   T73]      do_syscall_64+0xc6/0x1e0
[ 1089.979253][   T73] 
[ 1089.981706][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1089.981706][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1089.981706][   T73]      ipv6_find_idev+0x102/0x170
[ 1089.981706][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1089.981706][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1089.981706][   T73]      netlink_rcv_skb+0x130/0x360
[ 1089.981706][   T73]      netlink_unicast+0x449/0x710
[ 1089.981706][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1089.981706][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1089.981706][   T73]      ___sys_sendmsg+0xee/0x170
[ 1089.981706][   T73]      __sys_sendmsg+0xcd/0x170
[ 1089.981706][   T73]      do_syscall_64+0xc6/0x1e0
[ 1089.981706][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1089.981706][   T73] 
[ 1089.983664][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1089.983664][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1089.983664][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1089.983664][   T73]      ipv6_find_idev+0x102/0x170
[ 1089.983664][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1089.983664][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1089.983664][   T73]      netlink_rcv_skb+0x130/0x360
[ 1089.983664][   T73]      netlink_unicast+0x449/0x710
[ 1089.983664][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1089.983664][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1089.983664][   T73]      ___sys_sendmsg+0xee/0x170
[ 1089.983664][   T73]      __sys_sendmsg+0xcd/0x170
[ 1089.983664][   T73]      do_syscall_64+0xc6/0x1e0
[ 1089.983664][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1089.983664][   T73] 
[ 1100.071789][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1100.072242][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1100.072242][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1100.072242][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1100.072242][   T73]      fib6_nh_init+0xa22/0x1580
[ 1100.072242][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1100.072242][   T73]      ip6_route_add+0x1c/0x140
[ 1100.072242][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1100.072242][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1100.072242][   T73]      netlink_rcv_skb+0x130/0x360
[ 1100.072242][   T73]      netlink_unicast+0x449/0x710
[ 1100.072242][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1100.072242][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1100.072242][   T73]      ___sys_sendmsg+0xee/0x170
[ 1100.072242][   T73]      __sys_sendmsg+0xcd/0x170
[ 1100.072242][   T73]      do_syscall_64+0xc6/0x1e0
[ 1100.072242][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1100.072242][   T73] 
[ 1100.074326][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1100.074326][   T73]      dst_init+0x84/0x4a0
[ 1100.074326][   T73]      dst_alloc+0x97/0x150
[ 1100.074326][   T73]      ip6_dst_alloc+0x23/0x90
[ 1100.074326][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1100.074326][   T73]      ip6_pol_route+0x56f/0x840
[ 1100.074326][   T73]      fib6_rule_lookup+0x456/0x630
[ 1100.074326][   T73]      ip6_route_input+0x59c/0xa50
[ 1100.074326][   T73]      ipv6_rcv+0x397/0x810
[ 1100.074326][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1100.074326][   T73]      process_backlog+0x101/0x620
[ 1100.074326][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1100.074326][   T73]      net_rx_action+0x495/0xbe0
[ 1100.074326][   T73]      __do_softirq+0x1b5/0x7f6
[ 1100.074326][   T73] 
[ 1100.076132][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1100.076132][   T73]      netdev_get_by_index+0x5e/0x80
[ 1100.076132][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1100.076132][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1100.076132][   T73]      ip6_route_add+0x1c/0x140
[ 1100.076132][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1100.076132][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1100.076132][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1100.076132][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1100.076132][   T73]      netlink_rcv_skb+0x130/0x360
[ 1100.076132][   T73]      netlink_unicast+0x449/0x710
[ 1100.076132][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1100.076132][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1100.076132][   T73]      ___sys_sendmsg+0xee/0x170
[ 1100.076132][   T73]      __sys_sendmsg+0xcd/0x170
[ 1100.076132][   T73]      do_syscall_64+0xc6/0x1e0
[ 1100.076132][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1100.076132][   T73] 
[ 1100.078335][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1100.078335][   T73]      netdev_get_by_index+0x5e/0x80
[ 1100.078335][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1100.078335][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1100.078335][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1100.078335][   T73]      ipv6_add_addr+0x411/0x2000
[ 1100.078335][   T73]      inet6_addr_add+0x30e/0xa40
[ 1100.078335][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1100.078335][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1100.078335][   T73]      netlink_rcv_skb+0x130/0x360
[ 1100.078335][   T73]      netlink_unicast+0x449/0x710
[ 1100.078335][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1100.078335][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1100.078335][   T73]      ___sys_sendmsg+0xee/0x170
[ 1100.078335][   T73]      __sys_sendmsg+0xcd/0x170
[ 1100.078335][   T73]      do_syscall_64+0xc6/0x1e0
[ 1100.078335][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1100.078335][   T73] 
[ 1100.080561][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1100.080561][   T73]      netdev_get_by_index+0x5e/0x80
[ 1100.080561][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1100.080561][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1100.080561][   T73]      ip6_route_add+0x1c/0x140
[ 1100.080561][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1100.080561][   T73]      addrconf_add_dev+0xe2/0x170
[ 1100.080561][   T73]      inet6_addr_add+0x12f/0xa40
[ 1100.080561][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1100.080561][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1100.080561][   T73]      netlink_rcv_skb+0x130/0x360
[ 1100.080561][   T73]      netlink_unicast+0x449/0x710
[ 1100.080561][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1100.080561][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1100.080561][   T73]      ___sys_sendmsg+0xee/0x170
[ 1100.080561][   T73]      __sys_sendmsg+0xcd/0x170
[ 1100.080561][   T73]      do_syscall_64+0xc6/0x1e0
[ 1100.080561][   T73] 
[ 1100.082719][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1100.082719][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1100.082719][   T73]      ipv6_find_idev+0x102/0x170
[ 1100.082719][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1100.082719][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1100.082719][   T73]      netlink_rcv_skb+0x130/0x360
[ 1100.082719][   T73]      netlink_unicast+0x449/0x710
[ 1100.082719][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1100.082719][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1100.082719][   T73]      ___sys_sendmsg+0xee/0x170
[ 1100.082719][   T73]      __sys_sendmsg+0xcd/0x170
[ 1100.082719][   T73]      do_syscall_64+0xc6/0x1e0
[ 1100.082719][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1100.082719][   T73] 
[ 1100.084427][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1100.084427][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1100.084427][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1100.084427][   T73]      ipv6_find_idev+0x102/0x170
[ 1100.084427][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1100.084427][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1100.084427][   T73]      netlink_rcv_skb+0x130/0x360
[ 1100.084427][   T73]      netlink_unicast+0x449/0x710
[ 1100.084427][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1100.084427][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1100.084427][   T73]      ___sys_sendmsg+0xee/0x170
[ 1100.084427][   T73]      __sys_sendmsg+0xcd/0x170
[ 1100.084427][   T73]      do_syscall_64+0xc6/0x1e0
[ 1100.084427][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1100.084427][   T73] 
[ 1100.086293][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1100.086599][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1100.086599][   T73]      netdev_get_by_index+0x5e/0x80
[ 1100.086599][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1100.086599][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1100.086599][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1100.086599][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1100.086599][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1100.086599][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1100.086599][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1100.086599][   T73]      addrconf_dad_begin+0x310/0x670
[ 1100.086599][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1100.086599][   T73]      process_one_work+0x84d/0x18a0
[ 1100.086599][   T73]      worker_thread+0x587/0xd30
[ 1100.086599][   T73]      kthread+0x28a/0x350
[ 1100.086599][   T73]      ret_from_fork+0x31/0x70
[ 1100.086599][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1100.086599][   T73] 
[ 1100.088706][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1100.088706][   T73]      netdev_get_by_index+0x5e/0x80
[ 1100.088706][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1100.088706][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1100.088706][   T73]      ip6_route_add+0x1c/0x140
[ 1100.088706][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1100.088706][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1100.088706][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1100.088706][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1100.088706][   T73]      netlink_rcv_skb+0x130/0x360
[ 1100.088706][   T73]      netlink_unicast+0x449/0x710
[ 1100.088706][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1100.088706][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1100.088706][   T73]      ___sys_sendmsg+0xee/0x170
[ 1100.088706][   T73]      __sys_sendmsg+0xcd/0x170
[ 1100.088706][   T73]      do_syscall_64+0xc6/0x1e0
[ 1100.088706][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1100.088706][   T73] 
[ 1100.090844][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1100.090844][   T73]      netdev_get_by_index+0x5e/0x80
[ 1100.090844][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1100.090844][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1100.090844][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1100.090844][   T73]      ipv6_add_addr+0x411/0x2000
[ 1100.090844][   T73]      inet6_addr_add+0x30e/0xa40
[ 1100.090844][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1100.090844][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1100.090844][   T73]      netlink_rcv_skb+0x130/0x360
[ 1100.090844][   T73]      netlink_unicast+0x449/0x710
[ 1100.090844][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1100.090844][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1100.090844][   T73]      ___sys_sendmsg+0xee/0x170
[ 1100.090844][   T73]      __sys_sendmsg+0xcd/0x170
[ 1100.090844][   T73]      do_syscall_64+0xc6/0x1e0
[ 1100.090844][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1100.090844][   T73] 
[ 1100.092838][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1100.092838][   T73]      netdev_get_by_index+0x5e/0x80
[ 1100.092838][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1100.092838][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1100.092838][   T73]      ip6_route_add+0x1c/0x140
[ 1100.092838][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1100.092838][   T73]      addrconf_add_dev+0xe2/0x170
[ 1100.092838][   T73]      inet6_addr_add+0x12f/0xa40
[ 1100.092838][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1100.092838][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1100.092838][   T73]      netlink_rcv_skb+0x130/0x360
[ 1100.092838][   T73]      netlink_unicast+0x449/0x710
[ 1100.092838][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1100.092838][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1100.092838][   T73]      ___sys_sendmsg+0xee/0x170
[ 1100.092838][   T73]      __sys_sendmsg+0xcd/0x170
[ 1100.092838][   T73]      do_syscall_64+0xc6/0x1e0
[ 1100.092838][   T73] 
[ 1100.094815][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1100.094815][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1100.094815][   T73]      ipv6_find_idev+0x102/0x170
[ 1100.094815][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1100.094815][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1100.094815][   T73]      netlink_rcv_skb+0x130/0x360
[ 1100.094815][   T73]      netlink_unicast+0x449/0x710
[ 1100.094815][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1100.094815][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1100.094815][   T73]      ___sys_sendmsg+0xee/0x170
[ 1100.094815][   T73]      __sys_sendmsg+0xcd/0x170
[ 1100.094815][   T73]      do_syscall_64+0xc6/0x1e0
[ 1100.094815][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1100.094815][   T73] 
[ 1100.096353][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1100.096353][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1100.096353][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1100.096353][   T73]      ipv6_find_idev+0x102/0x170
[ 1100.096353][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1100.096353][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1100.096353][   T73]      netlink_rcv_skb+0x130/0x360
[ 1100.096353][   T73]      netlink_unicast+0x449/0x710
[ 1100.096353][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1100.096353][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1100.096353][   T73]      ___sys_sendmsg+0xee/0x170
[ 1100.096353][   T73]      __sys_sendmsg+0xcd/0x170
[ 1100.096353][   T73]      do_syscall_64+0xc6/0x1e0
[ 1100.096353][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1100.096353][   T73] 
[ 1100.098045][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1100.098347][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1100.098347][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1100.098347][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1100.098347][   T73]      fib6_nh_init+0xa22/0x1580
[ 1100.098347][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1100.098347][   T73]      ip6_route_add+0x1c/0x140
[ 1100.098347][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1100.098347][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1100.098347][   T73]      netlink_rcv_skb+0x130/0x360
[ 1100.098347][   T73]      netlink_unicast+0x449/0x710
[ 1100.098347][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1100.098347][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1100.098347][   T73]      ___sys_sendmsg+0xee/0x170
[ 1100.098347][   T73]      __sys_sendmsg+0xcd/0x170
[ 1100.098347][   T73]      do_syscall_64+0xc6/0x1e0
[ 1100.098347][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1100.098347][   T73] 
[ 1100.100392][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1100.100392][   T73]      dst_init+0x84/0x4a0
[ 1100.100392][   T73]      dst_alloc+0x97/0x150
[ 1100.100392][   T73]      ip6_dst_alloc+0x23/0x90
[ 1100.100392][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1100.100392][   T73]      ip6_pol_route+0x56f/0x840
[ 1100.100392][   T73]      fib6_rule_lookup+0x456/0x630
[ 1100.100392][   T73]      ip6_route_input+0x59c/0xa50
[ 1100.100392][   T73]      ipv6_rcv+0x397/0x810
[ 1100.100392][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1100.100392][   T73]      process_backlog+0x101/0x620
[ 1100.100392][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1100.100392][   T73]      net_rx_action+0x495/0xbe0
[ 1100.100392][   T73]      __do_softirq+0x1b5/0x7f6
[ 1100.100392][   T73] 
[ 1100.102210][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1100.102210][   T73]      netdev_get_by_index+0x5e/0x80
[ 1100.102210][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1100.102210][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1100.102210][   T73]      ip6_route_add+0x1c/0x140
[ 1100.102210][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1100.102210][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1100.102210][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1100.102210][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1100.102210][   T73]      netlink_rcv_skb+0x130/0x360
[ 1100.102210][   T73]      netlink_unicast+0x449/0x710
[ 1100.102210][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1100.102210][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1100.102210][   T73]      ___sys_sendmsg+0xee/0x170
[ 1100.102210][   T73]      __sys_sendmsg+0xcd/0x170
[ 1100.102210][   T73]      do_syscall_64+0xc6/0x1e0
[ 1100.102210][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1100.102210][   T73] 
[ 1100.104450][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1100.104450][   T73]      netdev_get_by_index+0x5e/0x80
[ 1100.104450][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1100.104450][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1100.104450][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1100.104450][   T73]      ipv6_add_addr+0x411/0x2000
[ 1100.104450][   T73]      inet6_addr_add+0x30e/0xa40
[ 1100.104450][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1100.104450][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1100.104450][   T73]      netlink_rcv_skb+0x130/0x360
[ 1100.104450][   T73]      netlink_unicast+0x449/0x710
[ 1100.104450][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1100.104450][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1100.104450][   T73]      ___sys_sendmsg+0xee/0x170
[ 1100.104450][   T73]      __sys_sendmsg+0xcd/0x170
[ 1100.104450][   T73]      do_syscall_64+0xc6/0x1e0
[ 1100.104450][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1100.104450][   T73] 
[ 1100.106689][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1100.106689][   T73]      netdev_get_by_index+0x5e/0x80
[ 1100.106689][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1100.106689][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1100.106689][   T73]      ip6_route_add+0x1c/0x140
[ 1100.106689][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1100.106689][   T73]      addrconf_add_dev+0xe2/0x170
[ 1100.106689][   T73]      inet6_addr_add+0x12f/0xa40
[ 1100.106689][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1100.106689][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1100.106689][   T73]      netlink_rcv_skb+0x130/0x360
[ 1100.106689][   T73]      netlink_unicast+0x449/0x710
[ 1100.106689][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1100.106689][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1100.106689][   T73]      ___sys_sendmsg+0xee/0x170
[ 1100.106689][   T73]      __sys_sendmsg+0xcd/0x170
[ 1100.106689][   T73]      do_syscall_64+0xc6/0x1e0
[ 1100.106689][   T73] 
[ 1100.108959][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1100.108959][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1100.108959][   T73]      ipv6_find_idev+0x102/0x170
[ 1100.108959][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1100.108959][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1100.108959][   T73]      netlink_rcv_skb+0x130/0x360
[ 1100.108959][   T73]      netlink_unicast+0x449/0x710
[ 1100.108959][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1100.108959][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1100.108959][   T73]      ___sys_sendmsg+0xee/0x170
[ 1100.108959][   T73]      __sys_sendmsg+0xcd/0x170
[ 1100.108959][   T73]      do_syscall_64+0xc6/0x1e0
[ 1100.108959][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1100.108959][   T73] 
[ 1100.110714][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1100.110714][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1100.110714][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1100.110714][   T73]      ipv6_find_idev+0x102/0x170
[ 1100.110714][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1100.110714][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1100.110714][   T73]      netlink_rcv_skb+0x130/0x360
[ 1100.110714][   T73]      netlink_unicast+0x449/0x710
[ 1100.110714][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1100.110714][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1100.110714][   T73]      ___sys_sendmsg+0xee/0x170
[ 1100.110714][   T73]      __sys_sendmsg+0xcd/0x170
[ 1100.110714][   T73]      do_syscall_64+0xc6/0x1e0
[ 1100.110714][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1100.110714][   T73] 
[ 1100.112601][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1100.113014][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1100.113014][   T73]      netdev_get_by_index+0x5e/0x80
[ 1100.113014][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1100.113014][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1100.113014][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1100.113014][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1100.113014][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1100.113014][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1100.113014][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1100.113014][   T73]      addrconf_dad_begin+0x310/0x670
[ 1100.113014][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1100.113014][   T73]      process_one_work+0x84d/0x18a0
[ 1100.113014][   T73]      worker_thread+0x587/0xd30
[ 1100.113014][   T73]      kthread+0x28a/0x350
[ 1100.113014][   T73]      ret_from_fork+0x31/0x70
[ 1100.113014][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1100.113014][   T73] 
[ 1100.115120][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1100.115120][   T73]      netdev_get_by_index+0x5e/0x80
[ 1100.115120][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1100.115120][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1100.115120][   T73]      ip6_route_add+0x1c/0x140
[ 1100.115120][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1100.115120][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1100.115120][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1100.115120][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1100.115120][   T73]      netlink_rcv_skb+0x130/0x360
[ 1100.115120][   T73]      netlink_unicast+0x449/0x710
[ 1100.115120][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1100.115120][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1100.115120][   T73]      ___sys_sendmsg+0xee/0x170
[ 1100.115120][   T73]      __sys_sendmsg+0xcd/0x170
[ 1100.115120][   T73]      do_syscall_64+0xc6/0x1e0
[ 1100.115120][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1100.115120][   T73] 
[ 1100.117303][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1100.117303][   T73]      netdev_get_by_index+0x5e/0x80
[ 1100.117303][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1100.117303][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1100.117303][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1100.117303][   T73]      ipv6_add_addr+0x411/0x2000
[ 1100.117303][   T73]      inet6_addr_add+0x30e/0xa40
[ 1100.117303][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1100.117303][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1100.117303][   T73]      netlink_rcv_skb+0x130/0x360
[ 1100.117303][   T73]      netlink_unicast+0x449/0x710
[ 1100.117303][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1100.117303][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1100.117303][   T73]      ___sys_sendmsg+0xee/0x170
[ 1100.117303][   T73]      __sys_sendmsg+0xcd/0x170
[ 1100.117303][   T73]      do_syscall_64+0xc6/0x1e0
[ 1100.117303][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1100.117303][   T73] 
[ 1100.119609][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1100.119609][   T73]      netdev_get_by_index+0x5e/0x80
[ 1100.119609][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1100.119609][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1100.119609][   T73]      ip6_route_add+0x1c/0x140
[ 1100.119609][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1100.119609][   T73]      addrconf_add_dev+0xe2/0x170
[ 1100.119609][   T73]      inet6_addr_add+0x12f/0xa40
[ 1100.119609][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1100.119609][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1100.119609][   T73]      netlink_rcv_skb+0x130/0x360
[ 1100.119609][   T73]      netlink_unicast+0x449/0x710
[ 1100.119609][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1100.119609][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1100.119609][   T73]      ___sys_sendmsg+0xee/0x170
[ 1100.119609][   T73]      __sys_sendmsg+0xcd/0x170
[ 1100.119609][   T73]      do_syscall_64+0xc6/0x1e0
[ 1100.119609][   T73] 
[ 1100.121817][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1100.121817][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1100.121817][   T73]      ipv6_find_idev+0x102/0x170
[ 1100.121817][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1100.121817][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1100.121817][   T73]      netlink_rcv_skb+0x130/0x360
[ 1100.121817][   T73]      netlink_unicast+0x449/0x710
[ 1100.121817][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1100.121817][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1100.121817][   T73]      ___sys_sendmsg+0xee/0x170
[ 1100.121817][   T73]      __sys_sendmsg+0xcd/0x170
[ 1100.121817][   T73]      do_syscall_64+0xc6/0x1e0
[ 1100.121817][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1100.121817][   T73] 
[ 1100.123548][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1100.123548][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1100.123548][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1100.123548][   T73]      ipv6_find_idev+0x102/0x170
[ 1100.123548][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1100.123548][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1100.123548][   T73]      netlink_rcv_skb+0x130/0x360
[ 1100.123548][   T73]      netlink_unicast+0x449/0x710
[ 1100.123548][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1100.123548][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1100.123548][   T73]      ___sys_sendmsg+0xee/0x170
[ 1100.123548][   T73]      __sys_sendmsg+0xcd/0x170
[ 1100.123548][   T73]      do_syscall_64+0xc6/0x1e0
[ 1100.123548][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1100.123548][   T73] 
[ 1107.239756][   T42] INFO: task modprobe:885 blocked for more than 860 seconds.
[ 1107.240056][   T42]       Not tainted 6.8.0-virtme #1
[ 1107.240175][   T42] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1107.240378][   T42] task:modprobe        state:D stack:25856 pid:885   tgid:885   ppid:39     flags:0x00004002
[ 1107.240625][   T42] Call Trace:
[ 1107.240750][   T42]  <TASK>
[ 1107.240822][   T42]  __schedule+0x705/0x1ac0
[ 1107.240956][   T42]  ? __pfx___schedule+0x10/0x10
[ 1107.241079][   T42]  ? schedule+0x1a5/0x210
[ 1107.241186][   T42]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1107.241316][   T42]  ? mark_lock+0x38/0x3e0
[ 1107.241416][   T42]  ? do_raw_spin_lock+0x131/0x270
[ 1107.241543][   T42]  ? schedule+0x1a5/0x210
[ 1107.241656][   T42]  schedule+0xdf/0x210
[ 1107.241753][   T42]  schedule_preempt_disabled+0x15/0x30
[ 1107.241874][   T42]  rwsem_down_write_slowpath+0x3af/0xab0
[ 1107.242003][   T42]  ? __pfx_rwsem_down_write_slowpath+0x10/0x10
[ 1107.242171][   T42]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1107.242301][   T42]  ? lock_acquire+0x1c1/0x220
[ 1107.242426][   T42]  ? register_pernet_subsys+0x1a/0x50
[ 1107.242556][   T42]  down_write+0x1c9/0x200
[ 1107.242663][   T42]  ? __pfx_down_write+0x10/0x10
[ 1107.242794][   T42]  ? __lock_release+0x103/0x460
[ 1107.242916][   T42]  ? __create_object+0x5e/0xb0
[ 1107.243046][   T42]  ? __pfx___lock_release+0x10/0x10
[ 1107.243172][   T42]  register_pernet_subsys+0x1a/0x50
[ 1107.243297][   T42]  tcf_register_action+0xa3/0x600
[ 1107.243424][   T42]  ? __pfx_pedit_init_module+0x10/0x10 [act_pedit]
[ 1107.243584][   T42]  do_one_initcall+0xc8/0x3f0
[ 1107.243721][   T42]  ? __pfx_do_one_initcall+0x10/0x10
[ 1107.243851][   T42]  ? __create_object+0x5e/0xb0
[ 1107.243976][   T42]  ? kasan_unpoison+0x27/0x60
[ 1107.244105][   T42]  do_init_module+0x233/0x740
[ 1107.244237][   T42]  load_module+0x16b5/0x2350
[ 1107.244374][   T42]  ? __pfx_load_module+0x10/0x10
[ 1107.244496][   T42]  ? kernel_read_file+0x3d2/0x520
[ 1107.244629][   T42]  ? kernel_read_file+0x300/0x520
[ 1107.244766][   T42]  ? __pfx_kernel_read_file+0x10/0x10
[ 1107.244902][   T42]  ? init_module_from_file+0xd2/0x130
[ 1107.245028][   T42]  init_module_from_file+0xd2/0x130
[ 1107.245150][   T42]  ? __pfx_init_module_from_file+0x10/0x10
[ 1107.245304][   T42]  ? __lock_release+0x103/0x460
[ 1107.245429][   T42]  ? idempotent_init_module+0x32a/0x620
[ 1107.245567][   T42]  ? idempotent_init_module+0x32a/0x620
[ 1107.245700][   T42]  ? do_raw_spin_unlock+0x58/0x220
[ 1107.245833][   T42]  idempotent_init_module+0x342/0x620
[ 1107.245958][   T42]  ? __pfx_idempotent_init_module+0x10/0x10
[ 1107.246132][   T42]  __x64_sys_finit_module+0xbe/0x130
[ 1107.246261][   T42]  do_syscall_64+0xc6/0x1e0
[ 1107.246388][   T42]  entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1107.246546][   T42] RIP: 0033:0x7f505b1e4e5d
[ 1107.246687][   T42] RSP: 002b:00007ffe4f186f28 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[ 1107.246872][   T42] RAX: ffffffffffffffda RBX: 000055ce7b6ccc80 RCX: 00007f505b1e4e5d
[ 1107.247056][   T42] RDX: 0000000000000000 RSI: 000055ce5e14da2a RDI: 0000000000000000
[ 1107.247237][   T42] RBP: 0000000000040000 R08: 0000000000000000 R09: 00007ffe4f187060
[ 1107.247422][   T42] R10: 0000000000000000 R11: 0000000000000246 R12: 000055ce5e14da2a
[ 1107.247604][   T42] R13: 000055ce7b6ccac0 R14: 000055ce7b6cd0b0 R15: 000055ce7b6cccf2
[ 1107.247819][   T42]  </TASK>
[ 1107.247917][   T42] 
[ 1107.247917][   T42] Showing all locks held in the system:
[ 1107.248092][   T42] 2 locks held by kworker/u20:0/39:
[ 1107.248212][   T42]  #0: ffff888001161d48 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0
[ 1107.248462][   T42]  #1: ffffc900002c7da0 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0
[ 1107.248758][   T42] 1 lock held by khungtaskd/42:
[ 1107.248876][   T42]  #0: ffffffffaf7591e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x350
[ 1107.249099][   T42] 3 locks held by kworker/u16:1/73:
[ 1107.249217][   T42]  #0: ffff88800190a948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0
[ 1107.249468][   T42]  #1: ffffc900004efda0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0
[ 1107.249690][   T42]  #2: ffffffffaff6a1d0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xbc/0xb60
[ 1107.249922][   T42] 1 lock held by modprobe/885:
[ 1107.250039][   T42]  #0: ffffffffaff6a1d0 (pernet_ops_rwsem){++++}-{3:3}, at: register_pernet_subsys+0x1a/0x50
[ 1107.250284][   T42] 
[ 1107.250350][   T42] =============================================
[ 1107.250350][   T42] 
[ 1110.343807][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1110.344266][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1110.344266][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1110.344266][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1110.344266][   T73]      fib6_nh_init+0xa22/0x1580
[ 1110.344266][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1110.344266][   T73]      ip6_route_add+0x1c/0x140
[ 1110.344266][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1110.344266][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1110.344266][   T73]      netlink_rcv_skb+0x130/0x360
[ 1110.344266][   T73]      netlink_unicast+0x449/0x710
[ 1110.344266][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1110.344266][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1110.344266][   T73]      ___sys_sendmsg+0xee/0x170
[ 1110.344266][   T73]      __sys_sendmsg+0xcd/0x170
[ 1110.344266][   T73]      do_syscall_64+0xc6/0x1e0
[ 1110.344266][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1110.344266][   T73] 
[ 1110.346396][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1110.346396][   T73]      dst_init+0x84/0x4a0
[ 1110.346396][   T73]      dst_alloc+0x97/0x150
[ 1110.346396][   T73]      ip6_dst_alloc+0x23/0x90
[ 1110.346396][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1110.346396][   T73]      ip6_pol_route+0x56f/0x840
[ 1110.346396][   T73]      fib6_rule_lookup+0x456/0x630
[ 1110.346396][   T73]      ip6_route_input+0x59c/0xa50
[ 1110.346396][   T73]      ipv6_rcv+0x397/0x810
[ 1110.346396][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1110.346396][   T73]      process_backlog+0x101/0x620
[ 1110.346396][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1110.346396][   T73]      net_rx_action+0x495/0xbe0
[ 1110.346396][   T73]      __do_softirq+0x1b5/0x7f6
[ 1110.346396][   T73] 
[ 1110.348232][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1110.348232][   T73]      netdev_get_by_index+0x5e/0x80
[ 1110.348232][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1110.348232][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1110.348232][   T73]      ip6_route_add+0x1c/0x140
[ 1110.348232][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1110.348232][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1110.348232][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1110.348232][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1110.348232][   T73]      netlink_rcv_skb+0x130/0x360
[ 1110.348232][   T73]      netlink_unicast+0x449/0x710
[ 1110.348232][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1110.348232][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1110.348232][   T73]      ___sys_sendmsg+0xee/0x170
[ 1110.348232][   T73]      __sys_sendmsg+0xcd/0x170
[ 1110.348232][   T73]      do_syscall_64+0xc6/0x1e0
[ 1110.348232][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1110.348232][   T73] 
[ 1110.350481][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1110.350481][   T73]      netdev_get_by_index+0x5e/0x80
[ 1110.350481][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1110.350481][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1110.350481][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1110.350481][   T73]      ipv6_add_addr+0x411/0x2000
[ 1110.350481][   T73]      inet6_addr_add+0x30e/0xa40
[ 1110.350481][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1110.350481][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1110.350481][   T73]      netlink_rcv_skb+0x130/0x360
[ 1110.350481][   T73]      netlink_unicast+0x449/0x710
[ 1110.350481][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1110.350481][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1110.350481][   T73]      ___sys_sendmsg+0xee/0x170
[ 1110.350481][   T73]      __sys_sendmsg+0xcd/0x170
[ 1110.350481][   T73]      do_syscall_64+0xc6/0x1e0
[ 1110.350481][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1110.350481][   T73] 
[ 1110.352728][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1110.352728][   T73]      netdev_get_by_index+0x5e/0x80
[ 1110.352728][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1110.352728][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1110.352728][   T73]      ip6_route_add+0x1c/0x140
[ 1110.352728][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1110.352728][   T73]      addrconf_add_dev+0xe2/0x170
[ 1110.352728][   T73]      inet6_addr_add+0x12f/0xa40
[ 1110.352728][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1110.352728][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1110.352728][   T73]      netlink_rcv_skb+0x130/0x360
[ 1110.352728][   T73]      netlink_unicast+0x449/0x710
[ 1110.352728][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1110.352728][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1110.352728][   T73]      ___sys_sendmsg+0xee/0x170
[ 1110.352728][   T73]      __sys_sendmsg+0xcd/0x170
[ 1110.352728][   T73]      do_syscall_64+0xc6/0x1e0
[ 1110.352728][   T73] 
[ 1110.354932][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1110.354932][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1110.354932][   T73]      ipv6_find_idev+0x102/0x170
[ 1110.354932][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1110.354932][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1110.354932][   T73]      netlink_rcv_skb+0x130/0x360
[ 1110.354932][   T73]      netlink_unicast+0x449/0x710
[ 1110.354932][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1110.354932][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1110.354932][   T73]      ___sys_sendmsg+0xee/0x170
[ 1110.354932][   T73]      __sys_sendmsg+0xcd/0x170
[ 1110.354932][   T73]      do_syscall_64+0xc6/0x1e0
[ 1110.354932][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1110.354932][   T73] 
[ 1110.356663][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1110.356663][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1110.356663][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1110.356663][   T73]      ipv6_find_idev+0x102/0x170
[ 1110.356663][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1110.356663][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1110.356663][   T73]      netlink_rcv_skb+0x130/0x360
[ 1110.356663][   T73]      netlink_unicast+0x449/0x710
[ 1110.356663][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1110.356663][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1110.356663][   T73]      ___sys_sendmsg+0xee/0x170
[ 1110.356663][   T73]      __sys_sendmsg+0xcd/0x170
[ 1110.356663][   T73]      do_syscall_64+0xc6/0x1e0
[ 1110.356663][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1110.356663][   T73] 
[ 1110.358551][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1110.358867][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1110.358867][   T73]      netdev_get_by_index+0x5e/0x80
[ 1110.358867][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1110.358867][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1110.358867][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1110.358867][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1110.358867][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1110.358867][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1110.358867][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1110.358867][   T73]      addrconf_dad_begin+0x310/0x670
[ 1110.358867][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1110.358867][   T73]      process_one_work+0x84d/0x18a0
[ 1110.358867][   T73]      worker_thread+0x587/0xd30
[ 1110.358867][   T73]      kthread+0x28a/0x350
[ 1110.358867][   T73]      ret_from_fork+0x31/0x70
[ 1110.358867][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1110.358867][   T73] 
[ 1110.361012][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1110.361012][   T73]      netdev_get_by_index+0x5e/0x80
[ 1110.361012][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1110.361012][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1110.361012][   T73]      ip6_route_add+0x1c/0x140
[ 1110.361012][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1110.361012][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1110.361012][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1110.361012][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1110.361012][   T73]      netlink_rcv_skb+0x130/0x360
[ 1110.361012][   T73]      netlink_unicast+0x449/0x710
[ 1110.361012][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1110.361012][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1110.361012][   T73]      ___sys_sendmsg+0xee/0x170
[ 1110.361012][   T73]      __sys_sendmsg+0xcd/0x170
[ 1110.361012][   T73]      do_syscall_64+0xc6/0x1e0
[ 1110.361012][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1110.361012][   T73] 
[ 1110.363247][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1110.363247][   T73]      netdev_get_by_index+0x5e/0x80
[ 1110.363247][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1110.363247][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1110.363247][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1110.363247][   T73]      ipv6_add_addr+0x411/0x2000
[ 1110.363247][   T73]      inet6_addr_add+0x30e/0xa40
[ 1110.363247][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1110.363247][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1110.363247][   T73]      netlink_rcv_skb+0x130/0x360
[ 1110.363247][   T73]      netlink_unicast+0x449/0x710
[ 1110.363247][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1110.363247][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1110.363247][   T73]      ___sys_sendmsg+0xee/0x170
[ 1110.363247][   T73]      __sys_sendmsg+0xcd/0x170
[ 1110.363247][   T73]      do_syscall_64+0xc6/0x1e0
[ 1110.363247][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1110.363247][   T73] 
[ 1110.365484][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1110.365484][   T73]      netdev_get_by_index+0x5e/0x80
[ 1110.365484][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1110.365484][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1110.365484][   T73]      ip6_route_add+0x1c/0x140
[ 1110.365484][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1110.365484][   T73]      addrconf_add_dev+0xe2/0x170
[ 1110.365484][   T73]      inet6_addr_add+0x12f/0xa40
[ 1110.365484][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1110.365484][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1110.365484][   T73]      netlink_rcv_skb+0x130/0x360
[ 1110.365484][   T73]      netlink_unicast+0x449/0x710
[ 1110.365484][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1110.365484][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1110.365484][   T73]      ___sys_sendmsg+0xee/0x170
[ 1110.365484][   T73]      __sys_sendmsg+0xcd/0x170
[ 1110.365484][   T73]      do_syscall_64+0xc6/0x1e0
[ 1110.365484][   T73] 
[ 1110.367666][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1110.367666][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1110.367666][   T73]      ipv6_find_idev+0x102/0x170
[ 1110.367666][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1110.367666][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1110.367666][   T73]      netlink_rcv_skb+0x130/0x360
[ 1110.367666][   T73]      netlink_unicast+0x449/0x710
[ 1110.367666][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1110.367666][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1110.367666][   T73]      ___sys_sendmsg+0xee/0x170
[ 1110.367666][   T73]      __sys_sendmsg+0xcd/0x170
[ 1110.367666][   T73]      do_syscall_64+0xc6/0x1e0
[ 1110.367666][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1110.367666][   T73] 
[ 1110.369386][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1110.369386][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1110.369386][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1110.369386][   T73]      ipv6_find_idev+0x102/0x170
[ 1110.369386][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1110.369386][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1110.369386][   T73]      netlink_rcv_skb+0x130/0x360
[ 1110.369386][   T73]      netlink_unicast+0x449/0x710
[ 1110.369386][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1110.369386][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1110.369386][   T73]      ___sys_sendmsg+0xee/0x170
[ 1110.369386][   T73]      __sys_sendmsg+0xcd/0x170
[ 1110.369386][   T73]      do_syscall_64+0xc6/0x1e0
[ 1110.369386][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1110.369386][   T73] 
[ 1110.371279][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1110.371569][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1110.371569][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1110.371569][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1110.371569][   T73]      fib6_nh_init+0xa22/0x1580
[ 1110.371569][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1110.371569][   T73]      ip6_route_add+0x1c/0x140
[ 1110.371569][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1110.371569][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1110.371569][   T73]      netlink_rcv_skb+0x130/0x360
[ 1110.371569][   T73]      netlink_unicast+0x449/0x710
[ 1110.371569][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1110.371569][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1110.371569][   T73]      ___sys_sendmsg+0xee/0x170
[ 1110.371569][   T73]      __sys_sendmsg+0xcd/0x170
[ 1110.371569][   T73]      do_syscall_64+0xc6/0x1e0
[ 1110.371569][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1110.371569][   T73] 
[ 1110.373851][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1110.373851][   T73]      dst_init+0x84/0x4a0
[ 1110.373851][   T73]      dst_alloc+0x97/0x150
[ 1110.373851][   T73]      ip6_dst_alloc+0x23/0x90
[ 1110.373851][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1110.373851][   T73]      ip6_pol_route+0x56f/0x840
[ 1110.373851][   T73]      fib6_rule_lookup+0x456/0x630
[ 1110.373851][   T73]      ip6_route_input+0x59c/0xa50
[ 1110.373851][   T73]      ipv6_rcv+0x397/0x810
[ 1110.373851][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1110.373851][   T73]      process_backlog+0x101/0x620
[ 1110.373851][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1110.373851][   T73]      net_rx_action+0x495/0xbe0
[ 1110.373851][   T73]      __do_softirq+0x1b5/0x7f6
[ 1110.373851][   T73] 
[ 1110.375977][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1110.375977][   T73]      netdev_get_by_index+0x5e/0x80
[ 1110.375977][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1110.375977][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1110.375977][   T73]      ip6_route_add+0x1c/0x140
[ 1110.375977][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1110.375977][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1110.375977][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1110.375977][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1110.375977][   T73]      netlink_rcv_skb+0x130/0x360
[ 1110.375977][   T73]      netlink_unicast+0x449/0x710
[ 1110.375977][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1110.375977][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1110.375977][   T73]      ___sys_sendmsg+0xee/0x170
[ 1110.375977][   T73]      __sys_sendmsg+0xcd/0x170
[ 1110.375977][   T73]      do_syscall_64+0xc6/0x1e0
[ 1110.375977][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1110.375977][   T73] 
[ 1110.378967][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1110.378967][   T73]      netdev_get_by_index+0x5e/0x80
[ 1110.378967][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1110.378967][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1110.378967][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1110.378967][   T73]      ipv6_add_addr+0x411/0x2000
[ 1110.378967][   T73]      inet6_addr_add+0x30e/0xa40
[ 1110.378967][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1110.378967][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1110.378967][   T73]      netlink_rcv_skb+0x130/0x360
[ 1110.378967][   T73]      netlink_unicast+0x449/0x710
[ 1110.378967][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1110.378967][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1110.378967][   T73]      ___sys_sendmsg+0xee/0x170
[ 1110.378967][   T73]      __sys_sendmsg+0xcd/0x170
[ 1110.378967][   T73]      do_syscall_64+0xc6/0x1e0
[ 1110.378967][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1110.378967][   T73] 
[ 1110.382572][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1110.382572][   T73]      netdev_get_by_index+0x5e/0x80
[ 1110.382572][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1110.382572][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1110.382572][   T73]      ip6_route_add+0x1c/0x140
[ 1110.382572][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1110.382572][   T73]      addrconf_add_dev+0xe2/0x170
[ 1110.382572][   T73]      inet6_addr_add+0x12f/0xa40
[ 1110.382572][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1110.382572][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1110.382572][   T73]      netlink_rcv_skb+0x130/0x360
[ 1110.382572][   T73]      netlink_unicast+0x449/0x710
[ 1110.382572][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1110.382572][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1110.382572][   T73]      ___sys_sendmsg+0xee/0x170
[ 1110.382572][   T73]      __sys_sendmsg+0xcd/0x170
[ 1110.382572][   T73]      do_syscall_64+0xc6/0x1e0
[ 1110.382572][   T73] 
[ 1110.386152][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1110.386152][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1110.386152][   T73]      ipv6_find_idev+0x102/0x170
[ 1110.386152][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1110.386152][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1110.386152][   T73]      netlink_rcv_skb+0x130/0x360
[ 1110.386152][   T73]      netlink_unicast+0x449/0x710
[ 1110.386152][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1110.386152][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1110.386152][   T73]      ___sys_sendmsg+0xee/0x170
[ 1110.386152][   T73]      __sys_sendmsg+0xcd/0x170
[ 1110.386152][   T73]      do_syscall_64+0xc6/0x1e0
[ 1110.386152][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1110.386152][   T73] 
[ 1110.389199][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1110.389199][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1110.389199][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1110.389199][   T73]      ipv6_find_idev+0x102/0x170
[ 1110.389199][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1110.389199][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1110.389199][   T73]      netlink_rcv_skb+0x130/0x360
[ 1110.389199][   T73]      netlink_unicast+0x449/0x710
[ 1110.389199][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1110.389199][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1110.389199][   T73]      ___sys_sendmsg+0xee/0x170
[ 1110.389199][   T73]      __sys_sendmsg+0xcd/0x170
[ 1110.389199][   T73]      do_syscall_64+0xc6/0x1e0
[ 1110.389199][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1110.389199][   T73] 
[ 1110.392303][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1110.393725][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1110.393725][   T73]      netdev_get_by_index+0x5e/0x80
[ 1110.393725][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1110.393725][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1110.393725][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1110.393725][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1110.393725][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1110.393725][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1110.393725][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1110.393725][   T73]      addrconf_dad_begin+0x310/0x670
[ 1110.393725][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1110.393725][   T73]      process_one_work+0x84d/0x18a0
[ 1110.393725][   T73]      worker_thread+0x587/0xd30
[ 1110.393725][   T73]      kthread+0x28a/0x350
[ 1110.393725][   T73]      ret_from_fork+0x31/0x70
[ 1110.393725][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1110.393725][   T73] 
[ 1110.396964][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1110.396964][   T73]      netdev_get_by_index+0x5e/0x80
[ 1110.396964][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1110.396964][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1110.396964][   T73]      ip6_route_add+0x1c/0x140
[ 1110.396964][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1110.396964][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1110.396964][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1110.396964][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1110.396964][   T73]      netlink_rcv_skb+0x130/0x360
[ 1110.396964][   T73]      netlink_unicast+0x449/0x710
[ 1110.396964][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1110.396964][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1110.396964][   T73]      ___sys_sendmsg+0xee/0x170
[ 1110.396964][   T73]      __sys_sendmsg+0xcd/0x170
[ 1110.396964][   T73]      do_syscall_64+0xc6/0x1e0
[ 1110.396964][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1110.396964][   T73] 
[ 1110.400369][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1110.400369][   T73]      netdev_get_by_index+0x5e/0x80
[ 1110.400369][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1110.400369][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1110.400369][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1110.400369][   T73]      ipv6_add_addr+0x411/0x2000
[ 1110.400369][   T73]      inet6_addr_add+0x30e/0xa40
[ 1110.400369][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1110.400369][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1110.400369][   T73]      netlink_rcv_skb+0x130/0x360
[ 1110.400369][   T73]      netlink_unicast+0x449/0x710
[ 1110.400369][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1110.400369][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1110.400369][   T73]      ___sys_sendmsg+0xee/0x170
[ 1110.400369][   T73]      __sys_sendmsg+0xcd/0x170
[ 1110.400369][   T73]      do_syscall_64+0xc6/0x1e0
[ 1110.400369][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1110.400369][   T73] 
[ 1110.404307][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1110.404307][   T73]      netdev_get_by_index+0x5e/0x80
[ 1110.404307][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1110.404307][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1110.404307][   T73]      ip6_route_add+0x1c/0x140
[ 1110.404307][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1110.404307][   T73]      addrconf_add_dev+0xe2/0x170
[ 1110.404307][   T73]      inet6_addr_add+0x12f/0xa40
[ 1110.404307][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1110.404307][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1110.404307][   T73]      netlink_rcv_skb+0x130/0x360
[ 1110.404307][   T73]      netlink_unicast+0x449/0x710
[ 1110.404307][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1110.404307][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1110.404307][   T73]      ___sys_sendmsg+0xee/0x170
[ 1110.404307][   T73]      __sys_sendmsg+0xcd/0x170
[ 1110.404307][   T73]      do_syscall_64+0xc6/0x1e0
[ 1110.404307][   T73] 
[ 1110.408099][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1110.408099][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1110.408099][   T73]      ipv6_find_idev+0x102/0x170
[ 1110.408099][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1110.408099][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1110.408099][   T73]      netlink_rcv_skb+0x130/0x360
[ 1110.408099][   T73]      netlink_unicast+0x449/0x710
[ 1110.408099][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1110.408099][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1110.408099][   T73]      ___sys_sendmsg+0xee/0x170
[ 1110.408099][   T73]      __sys_sendmsg+0xcd/0x170
[ 1110.408099][   T73]      do_syscall_64+0xc6/0x1e0
[ 1110.408099][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1110.408099][   T73] 
[ 1110.411180][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1110.411180][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1110.411180][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1110.411180][   T73]      ipv6_find_idev+0x102/0x170
[ 1110.411180][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1110.411180][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1110.411180][   T73]      netlink_rcv_skb+0x130/0x360
[ 1110.411180][   T73]      netlink_unicast+0x449/0x710
[ 1110.411180][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1110.411180][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1110.411180][   T73]      ___sys_sendmsg+0xee/0x170
[ 1110.411180][   T73]      __sys_sendmsg+0xcd/0x170
[ 1110.411180][   T73]      do_syscall_64+0xc6/0x1e0
[ 1110.411180][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1110.411180][   T73] 
[ 1120.551730][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1120.552157][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1120.552157][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1120.552157][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1120.552157][   T73]      fib6_nh_init+0xa22/0x1580
[ 1120.552157][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1120.552157][   T73]      ip6_route_add+0x1c/0x140
[ 1120.552157][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1120.552157][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1120.552157][   T73]      netlink_rcv_skb+0x130/0x360
[ 1120.552157][   T73]      netlink_unicast+0x449/0x710
[ 1120.552157][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1120.552157][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1120.552157][   T73]      ___sys_sendmsg+0xee/0x170
[ 1120.552157][   T73]      __sys_sendmsg+0xcd/0x170
[ 1120.552157][   T73]      do_syscall_64+0xc6/0x1e0
[ 1120.552157][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1120.552157][   T73] 
[ 1120.554072][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1120.554072][   T73]      dst_init+0x84/0x4a0
[ 1120.554072][   T73]      dst_alloc+0x97/0x150
[ 1120.554072][   T73]      ip6_dst_alloc+0x23/0x90
[ 1120.554072][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1120.554072][   T73]      ip6_pol_route+0x56f/0x840
[ 1120.554072][   T73]      fib6_rule_lookup+0x456/0x630
[ 1120.554072][   T73]      ip6_route_input+0x59c/0xa50
[ 1120.554072][   T73]      ipv6_rcv+0x397/0x810
[ 1120.554072][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1120.554072][   T73]      process_backlog+0x101/0x620
[ 1120.554072][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1120.554072][   T73]      net_rx_action+0x495/0xbe0
[ 1120.554072][   T73]      __do_softirq+0x1b5/0x7f6
[ 1120.554072][   T73] 
[ 1120.555705][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1120.555705][   T73]      netdev_get_by_index+0x5e/0x80
[ 1120.555705][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1120.555705][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1120.555705][   T73]      ip6_route_add+0x1c/0x140
[ 1120.555705][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1120.555705][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1120.555705][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1120.555705][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1120.555705][   T73]      netlink_rcv_skb+0x130/0x360
[ 1120.555705][   T73]      netlink_unicast+0x449/0x710
[ 1120.555705][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1120.555705][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1120.555705][   T73]      ___sys_sendmsg+0xee/0x170
[ 1120.555705][   T73]      __sys_sendmsg+0xcd/0x170
[ 1120.555705][   T73]      do_syscall_64+0xc6/0x1e0
[ 1120.555705][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1120.555705][   T73] 
[ 1120.557700][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1120.557700][   T73]      netdev_get_by_index+0x5e/0x80
[ 1120.557700][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1120.557700][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1120.557700][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1120.557700][   T73]      ipv6_add_addr+0x411/0x2000
[ 1120.557700][   T73]      inet6_addr_add+0x30e/0xa40
[ 1120.557700][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1120.557700][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1120.557700][   T73]      netlink_rcv_skb+0x130/0x360
[ 1120.557700][   T73]      netlink_unicast+0x449/0x710
[ 1120.557700][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1120.557700][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1120.557700][   T73]      ___sys_sendmsg+0xee/0x170
[ 1120.557700][   T73]      __sys_sendmsg+0xcd/0x170
[ 1120.557700][   T73]      do_syscall_64+0xc6/0x1e0
[ 1120.557700][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1120.557700][   T73] 
[ 1120.559691][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1120.559691][   T73]      netdev_get_by_index+0x5e/0x80
[ 1120.559691][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1120.559691][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1120.559691][   T73]      ip6_route_add+0x1c/0x140
[ 1120.559691][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1120.559691][   T73]      addrconf_add_dev+0xe2/0x170
[ 1120.559691][   T73]      inet6_addr_add+0x12f/0xa40
[ 1120.559691][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1120.559691][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1120.559691][   T73]      netlink_rcv_skb+0x130/0x360
[ 1120.559691][   T73]      netlink_unicast+0x449/0x710
[ 1120.559691][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1120.559691][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1120.559691][   T73]      ___sys_sendmsg+0xee/0x170
[ 1120.559691][   T73]      __sys_sendmsg+0xcd/0x170
[ 1120.559691][   T73]      do_syscall_64+0xc6/0x1e0
[ 1120.559691][   T73] 
[ 1120.561666][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1120.561666][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1120.561666][   T73]      ipv6_find_idev+0x102/0x170
[ 1120.561666][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1120.561666][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1120.561666][   T73]      netlink_rcv_skb+0x130/0x360
[ 1120.561666][   T73]      netlink_unicast+0x449/0x710
[ 1120.561666][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1120.561666][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1120.561666][   T73]      ___sys_sendmsg+0xee/0x170
[ 1120.561666][   T73]      __sys_sendmsg+0xcd/0x170
[ 1120.561666][   T73]      do_syscall_64+0xc6/0x1e0
[ 1120.561666][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1120.561666][   T73] 
[ 1120.563217][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1120.563217][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1120.563217][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1120.563217][   T73]      ipv6_find_idev+0x102/0x170
[ 1120.563217][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1120.563217][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1120.563217][   T73]      netlink_rcv_skb+0x130/0x360
[ 1120.563217][   T73]      netlink_unicast+0x449/0x710
[ 1120.563217][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1120.563217][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1120.563217][   T73]      ___sys_sendmsg+0xee/0x170
[ 1120.563217][   T73]      __sys_sendmsg+0xcd/0x170
[ 1120.563217][   T73]      do_syscall_64+0xc6/0x1e0
[ 1120.563217][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1120.563217][   T73] 
[ 1120.564914][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1120.565205][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1120.565205][   T73]      netdev_get_by_index+0x5e/0x80
[ 1120.565205][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1120.565205][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1120.565205][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1120.565205][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1120.565205][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1120.565205][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1120.565205][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1120.565205][   T73]      addrconf_dad_begin+0x310/0x670
[ 1120.565205][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1120.565205][   T73]      process_one_work+0x84d/0x18a0
[ 1120.565205][   T73]      worker_thread+0x587/0xd30
[ 1120.565205][   T73]      kthread+0x28a/0x350
[ 1120.565205][   T73]      ret_from_fork+0x31/0x70
[ 1120.565205][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1120.565205][   T73] 
[ 1120.567122][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1120.567122][   T73]      netdev_get_by_index+0x5e/0x80
[ 1120.567122][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1120.567122][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1120.567122][   T73]      ip6_route_add+0x1c/0x140
[ 1120.567122][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1120.567122][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1120.567122][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1120.567122][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1120.567122][   T73]      netlink_rcv_skb+0x130/0x360
[ 1120.567122][   T73]      netlink_unicast+0x449/0x710
[ 1120.567122][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1120.567122][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1120.567122][   T73]      ___sys_sendmsg+0xee/0x170
[ 1120.567122][   T73]      __sys_sendmsg+0xcd/0x170
[ 1120.567122][   T73]      do_syscall_64+0xc6/0x1e0
[ 1120.567122][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1120.567122][   T73] 
[ 1120.569114][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1120.569114][   T73]      netdev_get_by_index+0x5e/0x80
[ 1120.569114][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1120.569114][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1120.569114][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1120.569114][   T73]      ipv6_add_addr+0x411/0x2000
[ 1120.569114][   T73]      inet6_addr_add+0x30e/0xa40
[ 1120.569114][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1120.569114][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1120.569114][   T73]      netlink_rcv_skb+0x130/0x360
[ 1120.569114][   T73]      netlink_unicast+0x449/0x710
[ 1120.569114][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1120.569114][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1120.569114][   T73]      ___sys_sendmsg+0xee/0x170
[ 1120.569114][   T73]      __sys_sendmsg+0xcd/0x170
[ 1120.569114][   T73]      do_syscall_64+0xc6/0x1e0
[ 1120.569114][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1120.569114][   T73] 
[ 1120.571130][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1120.571130][   T73]      netdev_get_by_index+0x5e/0x80
[ 1120.571130][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1120.571130][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1120.571130][   T73]      ip6_route_add+0x1c/0x140
[ 1120.571130][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1120.571130][   T73]      addrconf_add_dev+0xe2/0x170
[ 1120.571130][   T73]      inet6_addr_add+0x12f/0xa40
[ 1120.571130][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1120.571130][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1120.571130][   T73]      netlink_rcv_skb+0x130/0x360
[ 1120.571130][   T73]      netlink_unicast+0x449/0x710
[ 1120.571130][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1120.571130][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1120.571130][   T73]      ___sys_sendmsg+0xee/0x170
[ 1120.571130][   T73]      __sys_sendmsg+0xcd/0x170
[ 1120.571130][   T73]      do_syscall_64+0xc6/0x1e0
[ 1120.571130][   T73] 
[ 1120.573472][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1120.573472][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1120.573472][   T73]      ipv6_find_idev+0x102/0x170
[ 1120.573472][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1120.573472][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1120.573472][   T73]      netlink_rcv_skb+0x130/0x360
[ 1120.573472][   T73]      netlink_unicast+0x449/0x710
[ 1120.573472][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1120.573472][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1120.573472][   T73]      ___sys_sendmsg+0xee/0x170
[ 1120.573472][   T73]      __sys_sendmsg+0xcd/0x170
[ 1120.573472][   T73]      do_syscall_64+0xc6/0x1e0
[ 1120.573472][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1120.573472][   T73] 
[ 1120.575013][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1120.575013][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1120.575013][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1120.575013][   T73]      ipv6_find_idev+0x102/0x170
[ 1120.575013][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1120.575013][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1120.575013][   T73]      netlink_rcv_skb+0x130/0x360
[ 1120.575013][   T73]      netlink_unicast+0x449/0x710
[ 1120.575013][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1120.575013][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1120.575013][   T73]      ___sys_sendmsg+0xee/0x170
[ 1120.575013][   T73]      __sys_sendmsg+0xcd/0x170
[ 1120.575013][   T73]      do_syscall_64+0xc6/0x1e0
[ 1120.575013][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1120.575013][   T73] 
[ 1120.576709][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1120.577520][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1120.577520][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1120.577520][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1120.577520][   T73]      fib6_nh_init+0xa22/0x1580
[ 1120.577520][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1120.577520][   T73]      ip6_route_add+0x1c/0x140
[ 1120.577520][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1120.577520][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1120.577520][   T73]      netlink_rcv_skb+0x130/0x360
[ 1120.577520][   T73]      netlink_unicast+0x449/0x710
[ 1120.577520][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1120.577520][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1120.577520][   T73]      ___sys_sendmsg+0xee/0x170
[ 1120.577520][   T73]      __sys_sendmsg+0xcd/0x170
[ 1120.577520][   T73]      do_syscall_64+0xc6/0x1e0
[ 1120.577520][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1120.577520][   T73] 
[ 1120.579520][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1120.579520][   T73]      dst_init+0x84/0x4a0
[ 1120.579520][   T73]      dst_alloc+0x97/0x150
[ 1120.579520][   T73]      ip6_dst_alloc+0x23/0x90
[ 1120.579520][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1120.579520][   T73]      ip6_pol_route+0x56f/0x840
[ 1120.579520][   T73]      fib6_rule_lookup+0x456/0x630
[ 1120.579520][   T73]      ip6_route_input+0x59c/0xa50
[ 1120.579520][   T73]      ipv6_rcv+0x397/0x810
[ 1120.579520][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1120.579520][   T73]      process_backlog+0x101/0x620
[ 1120.579520][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1120.579520][   T73]      net_rx_action+0x495/0xbe0
[ 1120.579520][   T73]      __do_softirq+0x1b5/0x7f6
[ 1120.579520][   T73] 
[ 1120.581342][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1120.581342][   T73]      netdev_get_by_index+0x5e/0x80
[ 1120.581342][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1120.581342][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1120.581342][   T73]      ip6_route_add+0x1c/0x140
[ 1120.581342][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1120.581342][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1120.581342][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1120.581342][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1120.581342][   T73]      netlink_rcv_skb+0x130/0x360
[ 1120.581342][   T73]      netlink_unicast+0x449/0x710
[ 1120.581342][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1120.581342][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1120.581342][   T73]      ___sys_sendmsg+0xee/0x170
[ 1120.581342][   T73]      __sys_sendmsg+0xcd/0x170
[ 1120.581342][   T73]      do_syscall_64+0xc6/0x1e0
[ 1120.581342][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1120.581342][   T73] 
[ 1120.583577][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1120.583577][   T73]      netdev_get_by_index+0x5e/0x80
[ 1120.583577][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1120.583577][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1120.583577][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1120.583577][   T73]      ipv6_add_addr+0x411/0x2000
[ 1120.583577][   T73]      inet6_addr_add+0x30e/0xa40
[ 1120.583577][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1120.583577][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1120.583577][   T73]      netlink_rcv_skb+0x130/0x360
[ 1120.583577][   T73]      netlink_unicast+0x449/0x710
[ 1120.583577][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1120.583577][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1120.583577][   T73]      ___sys_sendmsg+0xee/0x170
[ 1120.583577][   T73]      __sys_sendmsg+0xcd/0x170
[ 1120.583577][   T73]      do_syscall_64+0xc6/0x1e0
[ 1120.583577][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1120.583577][   T73] 
[ 1120.585825][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1120.585825][   T73]      netdev_get_by_index+0x5e/0x80
[ 1120.585825][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1120.585825][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1120.585825][   T73]      ip6_route_add+0x1c/0x140
[ 1120.585825][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1120.585825][   T73]      addrconf_add_dev+0xe2/0x170
[ 1120.585825][   T73]      inet6_addr_add+0x12f/0xa40
[ 1120.585825][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1120.585825][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1120.585825][   T73]      netlink_rcv_skb+0x130/0x360
[ 1120.585825][   T73]      netlink_unicast+0x449/0x710
[ 1120.585825][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1120.585825][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1120.585825][   T73]      ___sys_sendmsg+0xee/0x170
[ 1120.585825][   T73]      __sys_sendmsg+0xcd/0x170
[ 1120.585825][   T73]      do_syscall_64+0xc6/0x1e0
[ 1120.585825][   T73] 
[ 1120.588031][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1120.588031][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1120.588031][   T73]      ipv6_find_idev+0x102/0x170
[ 1120.588031][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1120.588031][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1120.588031][   T73]      netlink_rcv_skb+0x130/0x360
[ 1120.588031][   T73]      netlink_unicast+0x449/0x710
[ 1120.588031][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1120.588031][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1120.588031][   T73]      ___sys_sendmsg+0xee/0x170
[ 1120.588031][   T73]      __sys_sendmsg+0xcd/0x170
[ 1120.588031][   T73]      do_syscall_64+0xc6/0x1e0
[ 1120.588031][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1120.588031][   T73] 
[ 1120.590131][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1120.590131][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1120.590131][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1120.590131][   T73]      ipv6_find_idev+0x102/0x170
[ 1120.590131][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1120.590131][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1120.590131][   T73]      netlink_rcv_skb+0x130/0x360
[ 1120.590131][   T73]      netlink_unicast+0x449/0x710
[ 1120.590131][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1120.590131][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1120.590131][   T73]      ___sys_sendmsg+0xee/0x170
[ 1120.590131][   T73]      __sys_sendmsg+0xcd/0x170
[ 1120.590131][   T73]      do_syscall_64+0xc6/0x1e0
[ 1120.590131][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1120.590131][   T73] 
[ 1120.592001][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1120.592362][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1120.592362][   T73]      netdev_get_by_index+0x5e/0x80
[ 1120.592362][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1120.592362][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1120.592362][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1120.592362][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1120.592362][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1120.592362][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1120.592362][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1120.592362][   T73]      addrconf_dad_begin+0x310/0x670
[ 1120.592362][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1120.592362][   T73]      process_one_work+0x84d/0x18a0
[ 1120.592362][   T73]      worker_thread+0x587/0xd30
[ 1120.592362][   T73]      kthread+0x28a/0x350
[ 1120.592362][   T73]      ret_from_fork+0x31/0x70
[ 1120.592362][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1120.592362][   T73] 
[ 1120.594614][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1120.594614][   T73]      netdev_get_by_index+0x5e/0x80
[ 1120.594614][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1120.594614][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1120.594614][   T73]      ip6_route_add+0x1c/0x140
[ 1120.594614][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1120.594614][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1120.594614][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1120.594614][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1120.594614][   T73]      netlink_rcv_skb+0x130/0x360
[ 1120.594614][   T73]      netlink_unicast+0x449/0x710
[ 1120.594614][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1120.594614][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1120.594614][   T73]      ___sys_sendmsg+0xee/0x170
[ 1120.594614][   T73]      __sys_sendmsg+0xcd/0x170
[ 1120.594614][   T73]      do_syscall_64+0xc6/0x1e0
[ 1120.594614][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1120.594614][   T73] 
[ 1120.596844][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1120.596844][   T73]      netdev_get_by_index+0x5e/0x80
[ 1120.596844][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1120.596844][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1120.596844][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1120.596844][   T73]      ipv6_add_addr+0x411/0x2000
[ 1120.596844][   T73]      inet6_addr_add+0x30e/0xa40
[ 1120.596844][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1120.596844][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1120.596844][   T73]      netlink_rcv_skb+0x130/0x360
[ 1120.596844][   T73]      netlink_unicast+0x449/0x710
[ 1120.596844][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1120.596844][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1120.596844][   T73]      ___sys_sendmsg+0xee/0x170
[ 1120.596844][   T73]      __sys_sendmsg+0xcd/0x170
[ 1120.596844][   T73]      do_syscall_64+0xc6/0x1e0
[ 1120.596844][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1120.596844][   T73] 
[ 1120.599132][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1120.599132][   T73]      netdev_get_by_index+0x5e/0x80
[ 1120.599132][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1120.599132][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1120.599132][   T73]      ip6_route_add+0x1c/0x140
[ 1120.599132][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1120.599132][   T73]      addrconf_add_dev+0xe2/0x170
[ 1120.599132][   T73]      inet6_addr_add+0x12f/0xa40
[ 1120.599132][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1120.599132][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1120.599132][   T73]      netlink_rcv_skb+0x130/0x360
[ 1120.599132][   T73]      netlink_unicast+0x449/0x710
[ 1120.599132][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1120.599132][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1120.599132][   T73]      ___sys_sendmsg+0xee/0x170
[ 1120.599132][   T73]      __sys_sendmsg+0xcd/0x170
[ 1120.599132][   T73]      do_syscall_64+0xc6/0x1e0
[ 1120.599132][   T73] 
[ 1120.601347][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1120.601347][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1120.601347][   T73]      ipv6_find_idev+0x102/0x170
[ 1120.601347][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1120.601347][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1120.601347][   T73]      netlink_rcv_skb+0x130/0x360
[ 1120.601347][   T73]      netlink_unicast+0x449/0x710
[ 1120.601347][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1120.601347][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1120.601347][   T73]      ___sys_sendmsg+0xee/0x170
[ 1120.601347][   T73]      __sys_sendmsg+0xcd/0x170
[ 1120.601347][   T73]      do_syscall_64+0xc6/0x1e0
[ 1120.601347][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1120.601347][   T73] 
[ 1120.603001][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1120.603001][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1120.603001][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1120.603001][   T73]      ipv6_find_idev+0x102/0x170
[ 1120.603001][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1120.603001][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1120.603001][   T73]      netlink_rcv_skb+0x130/0x360
[ 1120.603001][   T73]      netlink_unicast+0x449/0x710
[ 1120.603001][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1120.603001][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1120.603001][   T73]      ___sys_sendmsg+0xee/0x170
[ 1120.603001][   T73]      __sys_sendmsg+0xcd/0x170
[ 1120.603001][   T73]      do_syscall_64+0xc6/0x1e0
[ 1120.603001][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1120.603001][   T73] 
[ 1130.847698][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1130.848165][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1130.848165][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1130.848165][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1130.848165][   T73]      fib6_nh_init+0xa22/0x1580
[ 1130.848165][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1130.848165][   T73]      ip6_route_add+0x1c/0x140
[ 1130.848165][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1130.848165][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1130.848165][   T73]      netlink_rcv_skb+0x130/0x360
[ 1130.848165][   T73]      netlink_unicast+0x449/0x710
[ 1130.848165][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1130.848165][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1130.848165][   T73]      ___sys_sendmsg+0xee/0x170
[ 1130.848165][   T73]      __sys_sendmsg+0xcd/0x170
[ 1130.848165][   T73]      do_syscall_64+0xc6/0x1e0
[ 1130.848165][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1130.848165][   T73] 
[ 1130.850506][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1130.850506][   T73]      dst_init+0x84/0x4a0
[ 1130.850506][   T73]      dst_alloc+0x97/0x150
[ 1130.850506][   T73]      ip6_dst_alloc+0x23/0x90
[ 1130.850506][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1130.850506][   T73]      ip6_pol_route+0x56f/0x840
[ 1130.850506][   T73]      fib6_rule_lookup+0x456/0x630
[ 1130.850506][   T73]      ip6_route_input+0x59c/0xa50
[ 1130.850506][   T73]      ipv6_rcv+0x397/0x810
[ 1130.850506][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1130.850506][   T73]      process_backlog+0x101/0x620
[ 1130.850506][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1130.850506][   T73]      net_rx_action+0x495/0xbe0
[ 1130.850506][   T73]      __do_softirq+0x1b5/0x7f6
[ 1130.850506][   T73] 
[ 1130.852522][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1130.852522][   T73]      netdev_get_by_index+0x5e/0x80
[ 1130.852522][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1130.852522][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1130.852522][   T73]      ip6_route_add+0x1c/0x140
[ 1130.852522][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1130.852522][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1130.852522][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1130.852522][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1130.852522][   T73]      netlink_rcv_skb+0x130/0x360
[ 1130.852522][   T73]      netlink_unicast+0x449/0x710
[ 1130.852522][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1130.852522][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1130.852522][   T73]      ___sys_sendmsg+0xee/0x170
[ 1130.852522][   T73]      __sys_sendmsg+0xcd/0x170
[ 1130.852522][   T73]      do_syscall_64+0xc6/0x1e0
[ 1130.852522][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1130.852522][   T73] 
[ 1130.854986][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1130.854986][   T73]      netdev_get_by_index+0x5e/0x80
[ 1130.854986][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1130.854986][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1130.854986][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1130.854986][   T73]      ipv6_add_addr+0x411/0x2000
[ 1130.854986][   T73]      inet6_addr_add+0x30e/0xa40
[ 1130.854986][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1130.854986][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1130.854986][   T73]      netlink_rcv_skb+0x130/0x360
[ 1130.854986][   T73]      netlink_unicast+0x449/0x710
[ 1130.854986][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1130.854986][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1130.854986][   T73]      ___sys_sendmsg+0xee/0x170
[ 1130.854986][   T73]      __sys_sendmsg+0xcd/0x170
[ 1130.854986][   T73]      do_syscall_64+0xc6/0x1e0
[ 1130.854986][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1130.854986][   T73] 
[ 1130.857445][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1130.857445][   T73]      netdev_get_by_index+0x5e/0x80
[ 1130.857445][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1130.857445][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1130.857445][   T73]      ip6_route_add+0x1c/0x140
[ 1130.857445][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1130.857445][   T73]      addrconf_add_dev+0xe2/0x170
[ 1130.857445][   T73]      inet6_addr_add+0x12f/0xa40
[ 1130.857445][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1130.857445][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1130.857445][   T73]      netlink_rcv_skb+0x130/0x360
[ 1130.857445][   T73]      netlink_unicast+0x449/0x710
[ 1130.857445][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1130.857445][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1130.857445][   T73]      ___sys_sendmsg+0xee/0x170
[ 1130.857445][   T73]      __sys_sendmsg+0xcd/0x170
[ 1130.857445][   T73]      do_syscall_64+0xc6/0x1e0
[ 1130.857445][   T73] 
[ 1130.859864][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1130.859864][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1130.859864][   T73]      ipv6_find_idev+0x102/0x170
[ 1130.859864][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1130.859864][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1130.859864][   T73]      netlink_rcv_skb+0x130/0x360
[ 1130.859864][   T73]      netlink_unicast+0x449/0x710
[ 1130.859864][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1130.859864][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1130.859864][   T73]      ___sys_sendmsg+0xee/0x170
[ 1130.859864][   T73]      __sys_sendmsg+0xcd/0x170
[ 1130.859864][   T73]      do_syscall_64+0xc6/0x1e0
[ 1130.859864][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1130.859864][   T73] 
[ 1130.862158][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1130.862158][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1130.862158][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1130.862158][   T73]      ipv6_find_idev+0x102/0x170
[ 1130.862158][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1130.862158][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1130.862158][   T73]      netlink_rcv_skb+0x130/0x360
[ 1130.862158][   T73]      netlink_unicast+0x449/0x710
[ 1130.862158][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1130.862158][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1130.862158][   T73]      ___sys_sendmsg+0xee/0x170
[ 1130.862158][   T73]      __sys_sendmsg+0xcd/0x170
[ 1130.862158][   T73]      do_syscall_64+0xc6/0x1e0
[ 1130.862158][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1130.862158][   T73] 
[ 1130.864257][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1130.864582][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1130.864582][   T73]      netdev_get_by_index+0x5e/0x80
[ 1130.864582][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1130.864582][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1130.864582][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1130.864582][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1130.864582][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1130.864582][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1130.864582][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1130.864582][   T73]      addrconf_dad_begin+0x310/0x670
[ 1130.864582][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1130.864582][   T73]      process_one_work+0x84d/0x18a0
[ 1130.864582][   T73]      worker_thread+0x587/0xd30
[ 1130.864582][   T73]      kthread+0x28a/0x350
[ 1130.864582][   T73]      ret_from_fork+0x31/0x70
[ 1130.864582][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1130.864582][   T73] 
[ 1130.866497][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1130.866497][   T73]      netdev_get_by_index+0x5e/0x80
[ 1130.866497][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1130.866497][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1130.866497][   T73]      ip6_route_add+0x1c/0x140
[ 1130.866497][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1130.866497][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1130.866497][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1130.866497][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1130.866497][   T73]      netlink_rcv_skb+0x130/0x360
[ 1130.866497][   T73]      netlink_unicast+0x449/0x710
[ 1130.866497][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1130.866497][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1130.866497][   T73]      ___sys_sendmsg+0xee/0x170
[ 1130.866497][   T73]      __sys_sendmsg+0xcd/0x170
[ 1130.866497][   T73]      do_syscall_64+0xc6/0x1e0
[ 1130.866497][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1130.866497][   T73] 
[ 1130.868492][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1130.868492][   T73]      netdev_get_by_index+0x5e/0x80
[ 1130.868492][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1130.868492][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1130.868492][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1130.868492][   T73]      ipv6_add_addr+0x411/0x2000
[ 1130.868492][   T73]      inet6_addr_add+0x30e/0xa40
[ 1130.868492][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1130.868492][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1130.868492][   T73]      netlink_rcv_skb+0x130/0x360
[ 1130.868492][   T73]      netlink_unicast+0x449/0x710
[ 1130.868492][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1130.868492][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1130.868492][   T73]      ___sys_sendmsg+0xee/0x170
[ 1130.868492][   T73]      __sys_sendmsg+0xcd/0x170
[ 1130.868492][   T73]      do_syscall_64+0xc6/0x1e0
[ 1130.868492][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1130.868492][   T73] 
[ 1130.870491][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1130.870491][   T73]      netdev_get_by_index+0x5e/0x80
[ 1130.870491][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1130.870491][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1130.870491][   T73]      ip6_route_add+0x1c/0x140
[ 1130.870491][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1130.870491][   T73]      addrconf_add_dev+0xe2/0x170
[ 1130.870491][   T73]      inet6_addr_add+0x12f/0xa40
[ 1130.870491][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1130.870491][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1130.870491][   T73]      netlink_rcv_skb+0x130/0x360
[ 1130.870491][   T73]      netlink_unicast+0x449/0x710
[ 1130.870491][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1130.870491][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1130.870491][   T73]      ___sys_sendmsg+0xee/0x170
[ 1130.870491][   T73]      __sys_sendmsg+0xcd/0x170
[ 1130.870491][   T73]      do_syscall_64+0xc6/0x1e0
[ 1130.870491][   T73] 
[ 1130.872454][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1130.872454][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1130.872454][   T73]      ipv6_find_idev+0x102/0x170
[ 1130.872454][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1130.872454][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1130.872454][   T73]      netlink_rcv_skb+0x130/0x360
[ 1130.872454][   T73]      netlink_unicast+0x449/0x710
[ 1130.872454][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1130.872454][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1130.872454][   T73]      ___sys_sendmsg+0xee/0x170
[ 1130.872454][   T73]      __sys_sendmsg+0xcd/0x170
[ 1130.872454][   T73]      do_syscall_64+0xc6/0x1e0
[ 1130.872454][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1130.872454][   T73] 
[ 1130.873998][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1130.873998][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1130.873998][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1130.873998][   T73]      ipv6_find_idev+0x102/0x170
[ 1130.873998][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1130.873998][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1130.873998][   T73]      netlink_rcv_skb+0x130/0x360
[ 1130.873998][   T73]      netlink_unicast+0x449/0x710
[ 1130.873998][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1130.873998][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1130.873998][   T73]      ___sys_sendmsg+0xee/0x170
[ 1130.873998][   T73]      __sys_sendmsg+0xcd/0x170
[ 1130.873998][   T73]      do_syscall_64+0xc6/0x1e0
[ 1130.873998][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1130.873998][   T73] 
[ 1130.875706][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1130.876002][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1130.876002][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1130.876002][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1130.876002][   T73]      fib6_nh_init+0xa22/0x1580
[ 1130.876002][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1130.876002][   T73]      ip6_route_add+0x1c/0x140
[ 1130.876002][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1130.876002][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1130.876002][   T73]      netlink_rcv_skb+0x130/0x360
[ 1130.876002][   T73]      netlink_unicast+0x449/0x710
[ 1130.876002][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1130.876002][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1130.876002][   T73]      ___sys_sendmsg+0xee/0x170
[ 1130.876002][   T73]      __sys_sendmsg+0xcd/0x170
[ 1130.876002][   T73]      do_syscall_64+0xc6/0x1e0
[ 1130.876002][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1130.876002][   T73] 
[ 1130.878020][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1130.878020][   T73]      dst_init+0x84/0x4a0
[ 1130.878020][   T73]      dst_alloc+0x97/0x150
[ 1130.878020][   T73]      ip6_dst_alloc+0x23/0x90
[ 1130.878020][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1130.878020][   T73]      ip6_pol_route+0x56f/0x840
[ 1130.878020][   T73]      fib6_rule_lookup+0x456/0x630
[ 1130.878020][   T73]      ip6_route_input+0x59c/0xa50
[ 1130.878020][   T73]      ipv6_rcv+0x397/0x810
[ 1130.878020][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1130.878020][   T73]      process_backlog+0x101/0x620
[ 1130.878020][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1130.878020][   T73]      net_rx_action+0x495/0xbe0
[ 1130.878020][   T73]      __do_softirq+0x1b5/0x7f6
[ 1130.878020][   T73] 
[ 1130.879862][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1130.879862][   T73]      netdev_get_by_index+0x5e/0x80
[ 1130.879862][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1130.879862][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1130.879862][   T73]      ip6_route_add+0x1c/0x140
[ 1130.879862][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1130.879862][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1130.879862][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1130.879862][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1130.879862][   T73]      netlink_rcv_skb+0x130/0x360
[ 1130.879862][   T73]      netlink_unicast+0x449/0x710
[ 1130.879862][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1130.879862][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1130.879862][   T73]      ___sys_sendmsg+0xee/0x170
[ 1130.879862][   T73]      __sys_sendmsg+0xcd/0x170
[ 1130.879862][   T73]      do_syscall_64+0xc6/0x1e0
[ 1130.879862][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1130.879862][   T73] 
[ 1130.882177][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1130.882177][   T73]      netdev_get_by_index+0x5e/0x80
[ 1130.882177][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1130.882177][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1130.882177][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1130.882177][   T73]      ipv6_add_addr+0x411/0x2000
[ 1130.882177][   T73]      inet6_addr_add+0x30e/0xa40
[ 1130.882177][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1130.882177][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1130.882177][   T73]      netlink_rcv_skb+0x130/0x360
[ 1130.882177][   T73]      netlink_unicast+0x449/0x710
[ 1130.882177][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1130.882177][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1130.882177][   T73]      ___sys_sendmsg+0xee/0x170
[ 1130.882177][   T73]      __sys_sendmsg+0xcd/0x170
[ 1130.882177][   T73]      do_syscall_64+0xc6/0x1e0
[ 1130.882177][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1130.882177][   T73] 
[ 1130.884434][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1130.884434][   T73]      netdev_get_by_index+0x5e/0x80
[ 1130.884434][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1130.884434][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1130.884434][   T73]      ip6_route_add+0x1c/0x140
[ 1130.884434][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1130.884434][   T73]      addrconf_add_dev+0xe2/0x170
[ 1130.884434][   T73]      inet6_addr_add+0x12f/0xa40
[ 1130.884434][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1130.884434][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1130.884434][   T73]      netlink_rcv_skb+0x130/0x360
[ 1130.884434][   T73]      netlink_unicast+0x449/0x710
[ 1130.884434][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1130.884434][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1130.884434][   T73]      ___sys_sendmsg+0xee/0x170
[ 1130.884434][   T73]      __sys_sendmsg+0xcd/0x170
[ 1130.884434][   T73]      do_syscall_64+0xc6/0x1e0
[ 1130.884434][   T73] 
[ 1130.886659][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1130.886659][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1130.886659][   T73]      ipv6_find_idev+0x102/0x170
[ 1130.886659][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1130.886659][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1130.886659][   T73]      netlink_rcv_skb+0x130/0x360
[ 1130.886659][   T73]      netlink_unicast+0x449/0x710
[ 1130.886659][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1130.886659][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1130.886659][   T73]      ___sys_sendmsg+0xee/0x170
[ 1130.886659][   T73]      __sys_sendmsg+0xcd/0x170
[ 1130.886659][   T73]      do_syscall_64+0xc6/0x1e0
[ 1130.886659][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1130.886659][   T73] 
[ 1130.888398][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1130.888398][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1130.888398][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1130.888398][   T73]      ipv6_find_idev+0x102/0x170
[ 1130.888398][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1130.888398][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1130.888398][   T73]      netlink_rcv_skb+0x130/0x360
[ 1130.888398][   T73]      netlink_unicast+0x449/0x710
[ 1130.888398][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1130.888398][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1130.888398][   T73]      ___sys_sendmsg+0xee/0x170
[ 1130.888398][   T73]      __sys_sendmsg+0xcd/0x170
[ 1130.888398][   T73]      do_syscall_64+0xc6/0x1e0
[ 1130.888398][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1130.888398][   T73] 
[ 1130.890308][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1130.890609][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1130.890609][   T73]      netdev_get_by_index+0x5e/0x80
[ 1130.890609][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1130.890609][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1130.890609][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1130.890609][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1130.890609][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1130.890609][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1130.890609][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1130.890609][   T73]      addrconf_dad_begin+0x310/0x670
[ 1130.890609][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1130.890609][   T73]      process_one_work+0x84d/0x18a0
[ 1130.890609][   T73]      worker_thread+0x587/0xd30
[ 1130.890609][   T73]      kthread+0x28a/0x350
[ 1130.890609][   T73]      ret_from_fork+0x31/0x70
[ 1130.890609][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1130.890609][   T73] 
[ 1130.892836][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1130.892836][   T73]      netdev_get_by_index+0x5e/0x80
[ 1130.892836][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1130.892836][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1130.892836][   T73]      ip6_route_add+0x1c/0x140
[ 1130.892836][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1130.892836][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1130.892836][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1130.892836][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1130.892836][   T73]      netlink_rcv_skb+0x130/0x360
[ 1130.892836][   T73]      netlink_unicast+0x449/0x710
[ 1130.892836][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1130.892836][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1130.892836][   T73]      ___sys_sendmsg+0xee/0x170
[ 1130.892836][   T73]      __sys_sendmsg+0xcd/0x170
[ 1130.892836][   T73]      do_syscall_64+0xc6/0x1e0
[ 1130.892836][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1130.892836][   T73] 
[ 1130.895089][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1130.895089][   T73]      netdev_get_by_index+0x5e/0x80
[ 1130.895089][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1130.895089][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1130.895089][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1130.895089][   T73]      ipv6_add_addr+0x411/0x2000
[ 1130.895089][   T73]      inet6_addr_add+0x30e/0xa40
[ 1130.895089][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1130.895089][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1130.895089][   T73]      netlink_rcv_skb+0x130/0x360
[ 1130.895089][   T73]      netlink_unicast+0x449/0x710
[ 1130.895089][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1130.895089][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1130.895089][   T73]      ___sys_sendmsg+0xee/0x170
[ 1130.895089][   T73]      __sys_sendmsg+0xcd/0x170
[ 1130.895089][   T73]      do_syscall_64+0xc6/0x1e0
[ 1130.895089][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1130.895089][   T73] 
[ 1130.897354][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1130.897354][   T73]      netdev_get_by_index+0x5e/0x80
[ 1130.897354][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1130.897354][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1130.897354][   T73]      ip6_route_add+0x1c/0x140
[ 1130.897354][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1130.897354][   T73]      addrconf_add_dev+0xe2/0x170
[ 1130.897354][   T73]      inet6_addr_add+0x12f/0xa40
[ 1130.897354][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1130.897354][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1130.897354][   T73]      netlink_rcv_skb+0x130/0x360
[ 1130.897354][   T73]      netlink_unicast+0x449/0x710
[ 1130.897354][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1130.897354][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1130.897354][   T73]      ___sys_sendmsg+0xee/0x170
[ 1130.897354][   T73]      __sys_sendmsg+0xcd/0x170
[ 1130.897354][   T73]      do_syscall_64+0xc6/0x1e0
[ 1130.897354][   T73] 
[ 1130.899564][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1130.899564][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1130.899564][   T73]      ipv6_find_idev+0x102/0x170
[ 1130.899564][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1130.899564][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1130.899564][   T73]      netlink_rcv_skb+0x130/0x360
[ 1130.899564][   T73]      netlink_unicast+0x449/0x710
[ 1130.899564][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1130.899564][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1130.899564][   T73]      ___sys_sendmsg+0xee/0x170
[ 1130.899564][   T73]      __sys_sendmsg+0xcd/0x170
[ 1130.899564][   T73]      do_syscall_64+0xc6/0x1e0
[ 1130.899564][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1130.899564][   T73] 
[ 1130.901298][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1130.901298][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1130.901298][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1130.901298][   T73]      ipv6_find_idev+0x102/0x170
[ 1130.901298][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1130.901298][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1130.901298][   T73]      netlink_rcv_skb+0x130/0x360
[ 1130.901298][   T73]      netlink_unicast+0x449/0x710
[ 1130.901298][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1130.901298][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1130.901298][   T73]      ___sys_sendmsg+0xee/0x170
[ 1130.901298][   T73]      __sys_sendmsg+0xcd/0x170
[ 1130.901298][   T73]      do_syscall_64+0xc6/0x1e0
[ 1130.901298][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1130.901298][   T73] 
[ 1140.935762][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1140.936217][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1140.936217][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1140.936217][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1140.936217][   T73]      fib6_nh_init+0xa22/0x1580
[ 1140.936217][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1140.936217][   T73]      ip6_route_add+0x1c/0x140
[ 1140.936217][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1140.936217][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1140.936217][   T73]      netlink_rcv_skb+0x130/0x360
[ 1140.936217][   T73]      netlink_unicast+0x449/0x710
[ 1140.936217][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1140.936217][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1140.936217][   T73]      ___sys_sendmsg+0xee/0x170
[ 1140.936217][   T73]      __sys_sendmsg+0xcd/0x170
[ 1140.936217][   T73]      do_syscall_64+0xc6/0x1e0
[ 1140.936217][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1140.936217][   T73] 
[ 1140.938320][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1140.938320][   T73]      dst_init+0x84/0x4a0
[ 1140.938320][   T73]      dst_alloc+0x97/0x150
[ 1140.938320][   T73]      ip6_dst_alloc+0x23/0x90
[ 1140.938320][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1140.938320][   T73]      ip6_pol_route+0x56f/0x840
[ 1140.938320][   T73]      fib6_rule_lookup+0x456/0x630
[ 1140.938320][   T73]      ip6_route_input+0x59c/0xa50
[ 1140.938320][   T73]      ipv6_rcv+0x397/0x810
[ 1140.938320][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1140.938320][   T73]      process_backlog+0x101/0x620
[ 1140.938320][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1140.938320][   T73]      net_rx_action+0x495/0xbe0
[ 1140.938320][   T73]      __do_softirq+0x1b5/0x7f6
[ 1140.938320][   T73] 
[ 1140.940151][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1140.940151][   T73]      netdev_get_by_index+0x5e/0x80
[ 1140.940151][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1140.940151][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1140.940151][   T73]      ip6_route_add+0x1c/0x140
[ 1140.940151][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1140.940151][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1140.940151][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1140.940151][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1140.940151][   T73]      netlink_rcv_skb+0x130/0x360
[ 1140.940151][   T73]      netlink_unicast+0x449/0x710
[ 1140.940151][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1140.940151][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1140.940151][   T73]      ___sys_sendmsg+0xee/0x170
[ 1140.940151][   T73]      __sys_sendmsg+0xcd/0x170
[ 1140.940151][   T73]      do_syscall_64+0xc6/0x1e0
[ 1140.940151][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1140.940151][   T73] 
[ 1140.942368][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1140.942368][   T73]      netdev_get_by_index+0x5e/0x80
[ 1140.942368][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1140.942368][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1140.942368][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1140.942368][   T73]      ipv6_add_addr+0x411/0x2000
[ 1140.942368][   T73]      inet6_addr_add+0x30e/0xa40
[ 1140.942368][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1140.942368][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1140.942368][   T73]      netlink_rcv_skb+0x130/0x360
[ 1140.942368][   T73]      netlink_unicast+0x449/0x710
[ 1140.942368][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1140.942368][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1140.942368][   T73]      ___sys_sendmsg+0xee/0x170
[ 1140.942368][   T73]      __sys_sendmsg+0xcd/0x170
[ 1140.942368][   T73]      do_syscall_64+0xc6/0x1e0
[ 1140.942368][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1140.942368][   T73] 
[ 1140.944595][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1140.944595][   T73]      netdev_get_by_index+0x5e/0x80
[ 1140.944595][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1140.944595][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1140.944595][   T73]      ip6_route_add+0x1c/0x140
[ 1140.944595][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1140.944595][   T73]      addrconf_add_dev+0xe2/0x170
[ 1140.944595][   T73]      inet6_addr_add+0x12f/0xa40
[ 1140.944595][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1140.944595][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1140.944595][   T73]      netlink_rcv_skb+0x130/0x360
[ 1140.944595][   T73]      netlink_unicast+0x449/0x710
[ 1140.944595][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1140.944595][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1140.944595][   T73]      ___sys_sendmsg+0xee/0x170
[ 1140.944595][   T73]      __sys_sendmsg+0xcd/0x170
[ 1140.944595][   T73]      do_syscall_64+0xc6/0x1e0
[ 1140.944595][   T73] 
[ 1140.946773][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1140.946773][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1140.946773][   T73]      ipv6_find_idev+0x102/0x170
[ 1140.946773][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1140.946773][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1140.946773][   T73]      netlink_rcv_skb+0x130/0x360
[ 1140.946773][   T73]      netlink_unicast+0x449/0x710
[ 1140.946773][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1140.946773][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1140.946773][   T73]      ___sys_sendmsg+0xee/0x170
[ 1140.946773][   T73]      __sys_sendmsg+0xcd/0x170
[ 1140.946773][   T73]      do_syscall_64+0xc6/0x1e0
[ 1140.946773][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1140.946773][   T73] 
[ 1140.948479][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1140.948479][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1140.948479][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1140.948479][   T73]      ipv6_find_idev+0x102/0x170
[ 1140.948479][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1140.948479][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1140.948479][   T73]      netlink_rcv_skb+0x130/0x360
[ 1140.948479][   T73]      netlink_unicast+0x449/0x710
[ 1140.948479][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1140.948479][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1140.948479][   T73]      ___sys_sendmsg+0xee/0x170
[ 1140.948479][   T73]      __sys_sendmsg+0xcd/0x170
[ 1140.948479][   T73]      do_syscall_64+0xc6/0x1e0
[ 1140.948479][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1140.948479][   T73] 
[ 1140.950380][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1140.950690][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1140.950690][   T73]      netdev_get_by_index+0x5e/0x80
[ 1140.950690][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1140.950690][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1140.950690][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1140.950690][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1140.950690][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1140.950690][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1140.950690][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1140.950690][   T73]      addrconf_dad_begin+0x310/0x670
[ 1140.950690][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1140.950690][   T73]      process_one_work+0x84d/0x18a0
[ 1140.950690][   T73]      worker_thread+0x587/0xd30
[ 1140.950690][   T73]      kthread+0x28a/0x350
[ 1140.950690][   T73]      ret_from_fork+0x31/0x70
[ 1140.950690][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1140.950690][   T73] 
[ 1140.952828][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1140.952828][   T73]      netdev_get_by_index+0x5e/0x80
[ 1140.952828][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1140.952828][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1140.952828][   T73]      ip6_route_add+0x1c/0x140
[ 1140.952828][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1140.952828][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1140.952828][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1140.952828][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1140.952828][   T73]      netlink_rcv_skb+0x130/0x360
[ 1140.952828][   T73]      netlink_unicast+0x449/0x710
[ 1140.952828][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1140.952828][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1140.952828][   T73]      ___sys_sendmsg+0xee/0x170
[ 1140.952828][   T73]      __sys_sendmsg+0xcd/0x170
[ 1140.952828][   T73]      do_syscall_64+0xc6/0x1e0
[ 1140.952828][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1140.952828][   T73] 
[ 1140.955064][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1140.955064][   T73]      netdev_get_by_index+0x5e/0x80
[ 1140.955064][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1140.955064][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1140.955064][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1140.955064][   T73]      ipv6_add_addr+0x411/0x2000
[ 1140.955064][   T73]      inet6_addr_add+0x30e/0xa40
[ 1140.955064][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1140.955064][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1140.955064][   T73]      netlink_rcv_skb+0x130/0x360
[ 1140.955064][   T73]      netlink_unicast+0x449/0x710
[ 1140.955064][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1140.955064][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1140.955064][   T73]      ___sys_sendmsg+0xee/0x170
[ 1140.955064][   T73]      __sys_sendmsg+0xcd/0x170
[ 1140.955064][   T73]      do_syscall_64+0xc6/0x1e0
[ 1140.955064][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1140.955064][   T73] 
[ 1140.957294][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1140.957294][   T73]      netdev_get_by_index+0x5e/0x80
[ 1140.957294][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1140.957294][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1140.957294][   T73]      ip6_route_add+0x1c/0x140
[ 1140.957294][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1140.957294][   T73]      addrconf_add_dev+0xe2/0x170
[ 1140.957294][   T73]      inet6_addr_add+0x12f/0xa40
[ 1140.957294][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1140.957294][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1140.957294][   T73]      netlink_rcv_skb+0x130/0x360
[ 1140.957294][   T73]      netlink_unicast+0x449/0x710
[ 1140.957294][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1140.957294][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1140.957294][   T73]      ___sys_sendmsg+0xee/0x170
[ 1140.957294][   T73]      __sys_sendmsg+0xcd/0x170
[ 1140.957294][   T73]      do_syscall_64+0xc6/0x1e0
[ 1140.957294][   T73] 
[ 1140.959489][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1140.959489][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1140.959489][   T73]      ipv6_find_idev+0x102/0x170
[ 1140.959489][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1140.959489][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1140.959489][   T73]      netlink_rcv_skb+0x130/0x360
[ 1140.959489][   T73]      netlink_unicast+0x449/0x710
[ 1140.959489][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1140.959489][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1140.959489][   T73]      ___sys_sendmsg+0xee/0x170
[ 1140.959489][   T73]      __sys_sendmsg+0xcd/0x170
[ 1140.959489][   T73]      do_syscall_64+0xc6/0x1e0
[ 1140.959489][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1140.959489][   T73] 
[ 1140.961214][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1140.961214][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1140.961214][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1140.961214][   T73]      ipv6_find_idev+0x102/0x170
[ 1140.961214][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1140.961214][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1140.961214][   T73]      netlink_rcv_skb+0x130/0x360
[ 1140.961214][   T73]      netlink_unicast+0x449/0x710
[ 1140.961214][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1140.961214][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1140.961214][   T73]      ___sys_sendmsg+0xee/0x170
[ 1140.961214][   T73]      __sys_sendmsg+0xcd/0x170
[ 1140.961214][   T73]      do_syscall_64+0xc6/0x1e0
[ 1140.961214][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1140.961214][   T73] 
[ 1140.963115][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1140.963411][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1140.963411][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1140.963411][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1140.963411][   T73]      fib6_nh_init+0xa22/0x1580
[ 1140.963411][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1140.963411][   T73]      ip6_route_add+0x1c/0x140
[ 1140.963411][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1140.963411][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1140.963411][   T73]      netlink_rcv_skb+0x130/0x360
[ 1140.963411][   T73]      netlink_unicast+0x449/0x710
[ 1140.963411][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1140.963411][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1140.963411][   T73]      ___sys_sendmsg+0xee/0x170
[ 1140.963411][   T73]      __sys_sendmsg+0xcd/0x170
[ 1140.963411][   T73]      do_syscall_64+0xc6/0x1e0
[ 1140.963411][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1140.963411][   T73] 
[ 1140.965704][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1140.965704][   T73]      dst_init+0x84/0x4a0
[ 1140.965704][   T73]      dst_alloc+0x97/0x150
[ 1140.965704][   T73]      ip6_dst_alloc+0x23/0x90
[ 1140.965704][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1140.965704][   T73]      ip6_pol_route+0x56f/0x840
[ 1140.965704][   T73]      fib6_rule_lookup+0x456/0x630
[ 1140.965704][   T73]      ip6_route_input+0x59c/0xa50
[ 1140.965704][   T73]      ipv6_rcv+0x397/0x810
[ 1140.965704][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1140.965704][   T73]      process_backlog+0x101/0x620
[ 1140.965704][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1140.965704][   T73]      net_rx_action+0x495/0xbe0
[ 1140.965704][   T73]      __do_softirq+0x1b5/0x7f6
[ 1140.965704][   T73] 
[ 1140.967711][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1140.967711][   T73]      netdev_get_by_index+0x5e/0x80
[ 1140.967711][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1140.967711][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1140.967711][   T73]      ip6_route_add+0x1c/0x140
[ 1140.967711][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1140.967711][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1140.967711][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1140.967711][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1140.967711][   T73]      netlink_rcv_skb+0x130/0x360
[ 1140.967711][   T73]      netlink_unicast+0x449/0x710
[ 1140.967711][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1140.967711][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1140.967711][   T73]      ___sys_sendmsg+0xee/0x170
[ 1140.967711][   T73]      __sys_sendmsg+0xcd/0x170
[ 1140.967711][   T73]      do_syscall_64+0xc6/0x1e0
[ 1140.967711][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1140.967711][   T73] 
[ 1140.970736][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1140.970736][   T73]      netdev_get_by_index+0x5e/0x80
[ 1140.970736][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1140.970736][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1140.970736][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1140.970736][   T73]      ipv6_add_addr+0x411/0x2000
[ 1140.970736][   T73]      inet6_addr_add+0x30e/0xa40
[ 1140.970736][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1140.970736][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1140.970736][   T73]      netlink_rcv_skb+0x130/0x360
[ 1140.970736][   T73]      netlink_unicast+0x449/0x710
[ 1140.970736][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1140.970736][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1140.970736][   T73]      ___sys_sendmsg+0xee/0x170
[ 1140.970736][   T73]      __sys_sendmsg+0xcd/0x170
[ 1140.970736][   T73]      do_syscall_64+0xc6/0x1e0
[ 1140.970736][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1140.970736][   T73] 
[ 1140.973159][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1140.973159][   T73]      netdev_get_by_index+0x5e/0x80
[ 1140.973159][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1140.973159][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1140.973159][   T73]      ip6_route_add+0x1c/0x140
[ 1140.973159][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1140.973159][   T73]      addrconf_add_dev+0xe2/0x170
[ 1140.973159][   T73]      inet6_addr_add+0x12f/0xa40
[ 1140.973159][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1140.973159][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1140.973159][   T73]      netlink_rcv_skb+0x130/0x360
[ 1140.973159][   T73]      netlink_unicast+0x449/0x710
[ 1140.973159][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1140.973159][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1140.973159][   T73]      ___sys_sendmsg+0xee/0x170
[ 1140.973159][   T73]      __sys_sendmsg+0xcd/0x170
[ 1140.973159][   T73]      do_syscall_64+0xc6/0x1e0
[ 1140.973159][   T73] 
[ 1140.976726][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1140.976726][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1140.976726][   T73]      ipv6_find_idev+0x102/0x170
[ 1140.976726][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1140.976726][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1140.976726][   T73]      netlink_rcv_skb+0x130/0x360
[ 1140.976726][   T73]      netlink_unicast+0x449/0x710
[ 1140.976726][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1140.976726][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1140.976726][   T73]      ___sys_sendmsg+0xee/0x170
[ 1140.976726][   T73]      __sys_sendmsg+0xcd/0x170
[ 1140.976726][   T73]      do_syscall_64+0xc6/0x1e0
[ 1140.976726][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1140.976726][   T73] 
[ 1140.979700][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1140.979700][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1140.979700][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1140.979700][   T73]      ipv6_find_idev+0x102/0x170
[ 1140.979700][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1140.979700][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1140.979700][   T73]      netlink_rcv_skb+0x130/0x360
[ 1140.979700][   T73]      netlink_unicast+0x449/0x710
[ 1140.979700][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1140.979700][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1140.979700][   T73]      ___sys_sendmsg+0xee/0x170
[ 1140.979700][   T73]      __sys_sendmsg+0xcd/0x170
[ 1140.979700][   T73]      do_syscall_64+0xc6/0x1e0
[ 1140.979700][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1140.979700][   T73] 
[ 1140.981804][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1140.982183][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1140.982183][   T73]      netdev_get_by_index+0x5e/0x80
[ 1140.982183][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1140.982183][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1140.982183][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1140.982183][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1140.982183][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1140.982183][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1140.982183][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1140.982183][   T73]      addrconf_dad_begin+0x310/0x670
[ 1140.982183][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1140.982183][   T73]      process_one_work+0x84d/0x18a0
[ 1140.982183][   T73]      worker_thread+0x587/0xd30
[ 1140.982183][   T73]      kthread+0x28a/0x350
[ 1140.982183][   T73]      ret_from_fork+0x31/0x70
[ 1140.982183][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1140.982183][   T73] 
[ 1140.984443][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1140.984443][   T73]      netdev_get_by_index+0x5e/0x80
[ 1140.984443][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1140.984443][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1140.984443][   T73]      ip6_route_add+0x1c/0x140
[ 1140.984443][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1140.984443][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1140.984443][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1140.984443][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1140.984443][   T73]      netlink_rcv_skb+0x130/0x360
[ 1140.984443][   T73]      netlink_unicast+0x449/0x710
[ 1140.984443][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1140.984443][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1140.984443][   T73]      ___sys_sendmsg+0xee/0x170
[ 1140.984443][   T73]      __sys_sendmsg+0xcd/0x170
[ 1140.984443][   T73]      do_syscall_64+0xc6/0x1e0
[ 1140.984443][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1140.984443][   T73] 
[ 1140.986990][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1140.986990][   T73]      netdev_get_by_index+0x5e/0x80
[ 1140.986990][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1140.986990][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1140.986990][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1140.986990][   T73]      ipv6_add_addr+0x411/0x2000
[ 1140.986990][   T73]      inet6_addr_add+0x30e/0xa40
[ 1140.986990][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1140.986990][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1140.986990][   T73]      netlink_rcv_skb+0x130/0x360
[ 1140.986990][   T73]      netlink_unicast+0x449/0x710
[ 1140.986990][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1140.986990][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1140.986990][   T73]      ___sys_sendmsg+0xee/0x170
[ 1140.986990][   T73]      __sys_sendmsg+0xcd/0x170
[ 1140.986990][   T73]      do_syscall_64+0xc6/0x1e0
[ 1140.986990][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1140.986990][   T73] 
[ 1140.989544][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1140.989544][   T73]      netdev_get_by_index+0x5e/0x80
[ 1140.989544][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1140.989544][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1140.989544][   T73]      ip6_route_add+0x1c/0x140
[ 1140.989544][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1140.989544][   T73]      addrconf_add_dev+0xe2/0x170
[ 1140.989544][   T73]      inet6_addr_add+0x12f/0xa40
[ 1140.989544][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1140.989544][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1140.989544][   T73]      netlink_rcv_skb+0x130/0x360
[ 1140.989544][   T73]      netlink_unicast+0x449/0x710
[ 1140.989544][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1140.989544][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1140.989544][   T73]      ___sys_sendmsg+0xee/0x170
[ 1140.989544][   T73]      __sys_sendmsg+0xcd/0x170
[ 1140.989544][   T73]      do_syscall_64+0xc6/0x1e0
[ 1140.989544][   T73] 
[ 1140.991989][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1140.991989][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1140.991989][   T73]      ipv6_find_idev+0x102/0x170
[ 1140.991989][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1140.991989][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1140.991989][   T73]      netlink_rcv_skb+0x130/0x360
[ 1140.991989][   T73]      netlink_unicast+0x449/0x710
[ 1140.991989][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1140.991989][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1140.991989][   T73]      ___sys_sendmsg+0xee/0x170
[ 1140.991989][   T73]      __sys_sendmsg+0xcd/0x170
[ 1140.991989][   T73]      do_syscall_64+0xc6/0x1e0
[ 1140.991989][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1140.991989][   T73] 
[ 1140.994309][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1140.994309][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1140.994309][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1140.994309][   T73]      ipv6_find_idev+0x102/0x170
[ 1140.994309][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1140.994309][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1140.994309][   T73]      netlink_rcv_skb+0x130/0x360
[ 1140.994309][   T73]      netlink_unicast+0x449/0x710
[ 1140.994309][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1140.994309][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1140.994309][   T73]      ___sys_sendmsg+0xee/0x170
[ 1140.994309][   T73]      __sys_sendmsg+0xcd/0x170
[ 1140.994309][   T73]      do_syscall_64+0xc6/0x1e0
[ 1140.994309][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1140.994309][   T73] 
[ 1151.239812][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1151.240301][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1151.240301][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1151.240301][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1151.240301][   T73]      fib6_nh_init+0xa22/0x1580
[ 1151.240301][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1151.240301][   T73]      ip6_route_add+0x1c/0x140
[ 1151.240301][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1151.240301][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1151.240301][   T73]      netlink_rcv_skb+0x130/0x360
[ 1151.240301][   T73]      netlink_unicast+0x449/0x710
[ 1151.240301][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1151.240301][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1151.240301][   T73]      ___sys_sendmsg+0xee/0x170
[ 1151.240301][   T73]      __sys_sendmsg+0xcd/0x170
[ 1151.240301][   T73]      do_syscall_64+0xc6/0x1e0
[ 1151.240301][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1151.240301][   T73] 
[ 1151.242418][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1151.242418][   T73]      dst_init+0x84/0x4a0
[ 1151.242418][   T73]      dst_alloc+0x97/0x150
[ 1151.242418][   T73]      ip6_dst_alloc+0x23/0x90
[ 1151.242418][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1151.242418][   T73]      ip6_pol_route+0x56f/0x840
[ 1151.242418][   T73]      fib6_rule_lookup+0x456/0x630
[ 1151.242418][   T73]      ip6_route_input+0x59c/0xa50
[ 1151.242418][   T73]      ipv6_rcv+0x397/0x810
[ 1151.242418][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1151.242418][   T73]      process_backlog+0x101/0x620
[ 1151.242418][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1151.242418][   T73]      net_rx_action+0x495/0xbe0
[ 1151.242418][   T73]      __do_softirq+0x1b5/0x7f6
[ 1151.242418][   T73] 
[ 1151.244257][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1151.244257][   T73]      netdev_get_by_index+0x5e/0x80
[ 1151.244257][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1151.244257][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1151.244257][   T73]      ip6_route_add+0x1c/0x140
[ 1151.244257][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1151.244257][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1151.244257][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1151.244257][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1151.244257][   T73]      netlink_rcv_skb+0x130/0x360
[ 1151.244257][   T73]      netlink_unicast+0x449/0x710
[ 1151.244257][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1151.244257][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1151.244257][   T73]      ___sys_sendmsg+0xee/0x170
[ 1151.244257][   T73]      __sys_sendmsg+0xcd/0x170
[ 1151.244257][   T73]      do_syscall_64+0xc6/0x1e0
[ 1151.244257][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1151.244257][   T73] 
[ 1151.246498][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1151.246498][   T73]      netdev_get_by_index+0x5e/0x80
[ 1151.246498][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1151.246498][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1151.246498][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1151.246498][   T73]      ipv6_add_addr+0x411/0x2000
[ 1151.246498][   T73]      inet6_addr_add+0x30e/0xa40
[ 1151.246498][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1151.246498][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1151.246498][   T73]      netlink_rcv_skb+0x130/0x360
[ 1151.246498][   T73]      netlink_unicast+0x449/0x710
[ 1151.246498][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1151.246498][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1151.246498][   T73]      ___sys_sendmsg+0xee/0x170
[ 1151.246498][   T73]      __sys_sendmsg+0xcd/0x170
[ 1151.246498][   T73]      do_syscall_64+0xc6/0x1e0
[ 1151.246498][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1151.246498][   T73] 
[ 1151.248734][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1151.248734][   T73]      netdev_get_by_index+0x5e/0x80
[ 1151.248734][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1151.248734][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1151.248734][   T73]      ip6_route_add+0x1c/0x140
[ 1151.248734][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1151.248734][   T73]      addrconf_add_dev+0xe2/0x170
[ 1151.248734][   T73]      inet6_addr_add+0x12f/0xa40
[ 1151.248734][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1151.248734][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1151.248734][   T73]      netlink_rcv_skb+0x130/0x360
[ 1151.248734][   T73]      netlink_unicast+0x449/0x710
[ 1151.248734][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1151.248734][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1151.248734][   T73]      ___sys_sendmsg+0xee/0x170
[ 1151.248734][   T73]      __sys_sendmsg+0xcd/0x170
[ 1151.248734][   T73]      do_syscall_64+0xc6/0x1e0
[ 1151.248734][   T73] 
[ 1151.250926][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1151.250926][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1151.250926][   T73]      ipv6_find_idev+0x102/0x170
[ 1151.250926][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1151.250926][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1151.250926][   T73]      netlink_rcv_skb+0x130/0x360
[ 1151.250926][   T73]      netlink_unicast+0x449/0x710
[ 1151.250926][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1151.250926][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1151.250926][   T73]      ___sys_sendmsg+0xee/0x170
[ 1151.250926][   T73]      __sys_sendmsg+0xcd/0x170
[ 1151.250926][   T73]      do_syscall_64+0xc6/0x1e0
[ 1151.250926][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1151.250926][   T73] 
[ 1151.252657][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1151.252657][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1151.252657][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1151.252657][   T73]      ipv6_find_idev+0x102/0x170
[ 1151.252657][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1151.252657][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1151.252657][   T73]      netlink_rcv_skb+0x130/0x360
[ 1151.252657][   T73]      netlink_unicast+0x449/0x710
[ 1151.252657][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1151.252657][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1151.252657][   T73]      ___sys_sendmsg+0xee/0x170
[ 1151.252657][   T73]      __sys_sendmsg+0xcd/0x170
[ 1151.252657][   T73]      do_syscall_64+0xc6/0x1e0
[ 1151.252657][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1151.252657][   T73] 
[ 1151.254558][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1151.254882][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1151.254882][   T73]      netdev_get_by_index+0x5e/0x80
[ 1151.254882][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1151.254882][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1151.254882][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1151.254882][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1151.254882][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1151.254882][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1151.254882][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1151.254882][   T73]      addrconf_dad_begin+0x310/0x670
[ 1151.254882][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1151.254882][   T73]      process_one_work+0x84d/0x18a0
[ 1151.254882][   T73]      worker_thread+0x587/0xd30
[ 1151.254882][   T73]      kthread+0x28a/0x350
[ 1151.254882][   T73]      ret_from_fork+0x31/0x70
[ 1151.254882][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1151.254882][   T73] 
[ 1151.257005][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1151.257005][   T73]      netdev_get_by_index+0x5e/0x80
[ 1151.257005][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1151.257005][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1151.257005][   T73]      ip6_route_add+0x1c/0x140
[ 1151.257005][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1151.257005][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1151.257005][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1151.257005][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1151.257005][   T73]      netlink_rcv_skb+0x130/0x360
[ 1151.257005][   T73]      netlink_unicast+0x449/0x710
[ 1151.257005][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1151.257005][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1151.257005][   T73]      ___sys_sendmsg+0xee/0x170
[ 1151.257005][   T73]      __sys_sendmsg+0xcd/0x170
[ 1151.257005][   T73]      do_syscall_64+0xc6/0x1e0
[ 1151.257005][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1151.257005][   T73] 
[ 1151.259237][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1151.259237][   T73]      netdev_get_by_index+0x5e/0x80
[ 1151.259237][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1151.259237][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1151.259237][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1151.259237][   T73]      ipv6_add_addr+0x411/0x2000
[ 1151.259237][   T73]      inet6_addr_add+0x30e/0xa40
[ 1151.259237][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1151.259237][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1151.259237][   T73]      netlink_rcv_skb+0x130/0x360
[ 1151.259237][   T73]      netlink_unicast+0x449/0x710
[ 1151.259237][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1151.259237][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1151.259237][   T73]      ___sys_sendmsg+0xee/0x170
[ 1151.259237][   T73]      __sys_sendmsg+0xcd/0x170
[ 1151.259237][   T73]      do_syscall_64+0xc6/0x1e0
[ 1151.259237][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1151.259237][   T73] 
[ 1151.261464][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1151.261464][   T73]      netdev_get_by_index+0x5e/0x80
[ 1151.261464][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1151.261464][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1151.261464][   T73]      ip6_route_add+0x1c/0x140
[ 1151.261464][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1151.261464][   T73]      addrconf_add_dev+0xe2/0x170
[ 1151.261464][   T73]      inet6_addr_add+0x12f/0xa40
[ 1151.261464][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1151.261464][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1151.261464][   T73]      netlink_rcv_skb+0x130/0x360
[ 1151.261464][   T73]      netlink_unicast+0x449/0x710
[ 1151.261464][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1151.261464][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1151.261464][   T73]      ___sys_sendmsg+0xee/0x170
[ 1151.261464][   T73]      __sys_sendmsg+0xcd/0x170
[ 1151.261464][   T73]      do_syscall_64+0xc6/0x1e0
[ 1151.261464][   T73] 
[ 1151.263641][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1151.263641][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1151.263641][   T73]      ipv6_find_idev+0x102/0x170
[ 1151.263641][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1151.263641][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1151.263641][   T73]      netlink_rcv_skb+0x130/0x360
[ 1151.263641][   T73]      netlink_unicast+0x449/0x710
[ 1151.263641][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1151.263641][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1151.263641][   T73]      ___sys_sendmsg+0xee/0x170
[ 1151.263641][   T73]      __sys_sendmsg+0xcd/0x170
[ 1151.263641][   T73]      do_syscall_64+0xc6/0x1e0
[ 1151.263641][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1151.263641][   T73] 
[ 1151.265364][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1151.265364][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1151.265364][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1151.265364][   T73]      ipv6_find_idev+0x102/0x170
[ 1151.265364][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1151.265364][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1151.265364][   T73]      netlink_rcv_skb+0x130/0x360
[ 1151.265364][   T73]      netlink_unicast+0x449/0x710
[ 1151.265364][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1151.265364][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1151.265364][   T73]      ___sys_sendmsg+0xee/0x170
[ 1151.265364][   T73]      __sys_sendmsg+0xcd/0x170
[ 1151.265364][   T73]      do_syscall_64+0xc6/0x1e0
[ 1151.265364][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1151.265364][   T73] 
[ 1151.267245][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1151.267539][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1151.267539][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1151.267539][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1151.267539][   T73]      fib6_nh_init+0xa22/0x1580
[ 1151.267539][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1151.267539][   T73]      ip6_route_add+0x1c/0x140
[ 1151.267539][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1151.267539][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1151.267539][   T73]      netlink_rcv_skb+0x130/0x360
[ 1151.267539][   T73]      netlink_unicast+0x449/0x710
[ 1151.267539][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1151.267539][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1151.267539][   T73]      ___sys_sendmsg+0xee/0x170
[ 1151.267539][   T73]      __sys_sendmsg+0xcd/0x170
[ 1151.267539][   T73]      do_syscall_64+0xc6/0x1e0
[ 1151.267539][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1151.267539][   T73] 
[ 1151.269811][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1151.269811][   T73]      dst_init+0x84/0x4a0
[ 1151.269811][   T73]      dst_alloc+0x97/0x150
[ 1151.269811][   T73]      ip6_dst_alloc+0x23/0x90
[ 1151.269811][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1151.269811][   T73]      ip6_pol_route+0x56f/0x840
[ 1151.269811][   T73]      fib6_rule_lookup+0x456/0x630
[ 1151.269811][   T73]      ip6_route_input+0x59c/0xa50
[ 1151.269811][   T73]      ipv6_rcv+0x397/0x810
[ 1151.269811][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1151.269811][   T73]      process_backlog+0x101/0x620
[ 1151.269811][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1151.269811][   T73]      net_rx_action+0x495/0xbe0
[ 1151.269811][   T73]      __do_softirq+0x1b5/0x7f6
[ 1151.269811][   T73] 
[ 1151.271810][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1151.271810][   T73]      netdev_get_by_index+0x5e/0x80
[ 1151.271810][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1151.271810][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1151.271810][   T73]      ip6_route_add+0x1c/0x140
[ 1151.271810][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1151.271810][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1151.271810][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1151.271810][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1151.271810][   T73]      netlink_rcv_skb+0x130/0x360
[ 1151.271810][   T73]      netlink_unicast+0x449/0x710
[ 1151.271810][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1151.271810][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1151.271810][   T73]      ___sys_sendmsg+0xee/0x170
[ 1151.271810][   T73]      __sys_sendmsg+0xcd/0x170
[ 1151.271810][   T73]      do_syscall_64+0xc6/0x1e0
[ 1151.271810][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1151.271810][   T73] 
[ 1151.274272][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1151.274272][   T73]      netdev_get_by_index+0x5e/0x80
[ 1151.274272][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1151.274272][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1151.274272][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1151.274272][   T73]      ipv6_add_addr+0x411/0x2000
[ 1151.274272][   T73]      inet6_addr_add+0x30e/0xa40
[ 1151.274272][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1151.274272][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1151.274272][   T73]      netlink_rcv_skb+0x130/0x360
[ 1151.274272][   T73]      netlink_unicast+0x449/0x710
[ 1151.274272][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1151.274272][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1151.274272][   T73]      ___sys_sendmsg+0xee/0x170
[ 1151.274272][   T73]      __sys_sendmsg+0xcd/0x170
[ 1151.274272][   T73]      do_syscall_64+0xc6/0x1e0
[ 1151.274272][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1151.274272][   T73] 
[ 1151.276742][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1151.276742][   T73]      netdev_get_by_index+0x5e/0x80
[ 1151.276742][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1151.276742][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1151.276742][   T73]      ip6_route_add+0x1c/0x140
[ 1151.276742][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1151.276742][   T73]      addrconf_add_dev+0xe2/0x170
[ 1151.276742][   T73]      inet6_addr_add+0x12f/0xa40
[ 1151.276742][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1151.276742][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1151.276742][   T73]      netlink_rcv_skb+0x130/0x360
[ 1151.276742][   T73]      netlink_unicast+0x449/0x710
[ 1151.276742][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1151.276742][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1151.276742][   T73]      ___sys_sendmsg+0xee/0x170
[ 1151.276742][   T73]      __sys_sendmsg+0xcd/0x170
[ 1151.276742][   T73]      do_syscall_64+0xc6/0x1e0
[ 1151.276742][   T73] 
[ 1151.279165][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1151.279165][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1151.279165][   T73]      ipv6_find_idev+0x102/0x170
[ 1151.279165][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1151.279165][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1151.279165][   T73]      netlink_rcv_skb+0x130/0x360
[ 1151.279165][   T73]      netlink_unicast+0x449/0x710
[ 1151.279165][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1151.279165][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1151.279165][   T73]      ___sys_sendmsg+0xee/0x170
[ 1151.279165][   T73]      __sys_sendmsg+0xcd/0x170
[ 1151.279165][   T73]      do_syscall_64+0xc6/0x1e0
[ 1151.279165][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1151.279165][   T73] 
[ 1151.281053][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1151.281053][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1151.281053][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1151.281053][   T73]      ipv6_find_idev+0x102/0x170
[ 1151.281053][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1151.281053][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1151.281053][   T73]      netlink_rcv_skb+0x130/0x360
[ 1151.281053][   T73]      netlink_unicast+0x449/0x710
[ 1151.281053][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1151.281053][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1151.281053][   T73]      ___sys_sendmsg+0xee/0x170
[ 1151.281053][   T73]      __sys_sendmsg+0xcd/0x170
[ 1151.281053][   T73]      do_syscall_64+0xc6/0x1e0
[ 1151.281053][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1151.281053][   T73] 
[ 1151.283100][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1151.283460][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1151.283460][   T73]      netdev_get_by_index+0x5e/0x80
[ 1151.283460][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1151.283460][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1151.283460][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1151.283460][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1151.283460][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1151.283460][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1151.283460][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1151.283460][   T73]      addrconf_dad_begin+0x310/0x670
[ 1151.283460][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1151.283460][   T73]      process_one_work+0x84d/0x18a0
[ 1151.283460][   T73]      worker_thread+0x587/0xd30
[ 1151.283460][   T73]      kthread+0x28a/0x350
[ 1151.283460][   T73]      ret_from_fork+0x31/0x70
[ 1151.283460][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1151.283460][   T73] 
[ 1151.285829][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1151.285829][   T73]      netdev_get_by_index+0x5e/0x80
[ 1151.285829][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1151.285829][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1151.285829][   T73]      ip6_route_add+0x1c/0x140
[ 1151.285829][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1151.285829][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1151.285829][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1151.285829][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1151.285829][   T73]      netlink_rcv_skb+0x130/0x360
[ 1151.285829][   T73]      netlink_unicast+0x449/0x710
[ 1151.285829][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1151.285829][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1151.285829][   T73]      ___sys_sendmsg+0xee/0x170
[ 1151.285829][   T73]      __sys_sendmsg+0xcd/0x170
[ 1151.285829][   T73]      do_syscall_64+0xc6/0x1e0
[ 1151.285829][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1151.285829][   T73] 
[ 1151.288275][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1151.288275][   T73]      netdev_get_by_index+0x5e/0x80
[ 1151.288275][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1151.288275][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1151.288275][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1151.288275][   T73]      ipv6_add_addr+0x411/0x2000
[ 1151.288275][   T73]      inet6_addr_add+0x30e/0xa40
[ 1151.288275][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1151.288275][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1151.288275][   T73]      netlink_rcv_skb+0x130/0x360
[ 1151.288275][   T73]      netlink_unicast+0x449/0x710
[ 1151.288275][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1151.288275][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1151.288275][   T73]      ___sys_sendmsg+0xee/0x170
[ 1151.288275][   T73]      __sys_sendmsg+0xcd/0x170
[ 1151.288275][   T73]      do_syscall_64+0xc6/0x1e0
[ 1151.288275][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1151.288275][   T73] 
[ 1151.290738][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1151.290738][   T73]      netdev_get_by_index+0x5e/0x80
[ 1151.290738][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1151.290738][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1151.290738][   T73]      ip6_route_add+0x1c/0x140
[ 1151.290738][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1151.290738][   T73]      addrconf_add_dev+0xe2/0x170
[ 1151.290738][   T73]      inet6_addr_add+0x12f/0xa40
[ 1151.290738][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1151.290738][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1151.290738][   T73]      netlink_rcv_skb+0x130/0x360
[ 1151.290738][   T73]      netlink_unicast+0x449/0x710
[ 1151.290738][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1151.290738][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1151.290738][   T73]      ___sys_sendmsg+0xee/0x170
[ 1151.290738][   T73]      __sys_sendmsg+0xcd/0x170
[ 1151.290738][   T73]      do_syscall_64+0xc6/0x1e0
[ 1151.290738][   T73] 
[ 1151.293169][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1151.293169][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1151.293169][   T73]      ipv6_find_idev+0x102/0x170
[ 1151.293169][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1151.293169][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1151.293169][   T73]      netlink_rcv_skb+0x130/0x360
[ 1151.293169][   T73]      netlink_unicast+0x449/0x710
[ 1151.293169][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1151.293169][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1151.293169][   T73]      ___sys_sendmsg+0xee/0x170
[ 1151.293169][   T73]      __sys_sendmsg+0xcd/0x170
[ 1151.293169][   T73]      do_syscall_64+0xc6/0x1e0
[ 1151.293169][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1151.293169][   T73] 
[ 1151.295063][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1151.295063][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1151.295063][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1151.295063][   T73]      ipv6_find_idev+0x102/0x170
[ 1151.295063][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1151.295063][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1151.295063][   T73]      netlink_rcv_skb+0x130/0x360
[ 1151.295063][   T73]      netlink_unicast+0x449/0x710
[ 1151.295063][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1151.295063][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1151.295063][   T73]      ___sys_sendmsg+0xee/0x170
[ 1151.295063][   T73]      __sys_sendmsg+0xcd/0x170
[ 1151.295063][   T73]      do_syscall_64+0xc6/0x1e0
[ 1151.295063][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1151.295063][   T73] 
[ 1161.535741][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1161.536244][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1161.536244][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1161.536244][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1161.536244][   T73]      fib6_nh_init+0xa22/0x1580
[ 1161.536244][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1161.536244][   T73]      ip6_route_add+0x1c/0x140
[ 1161.536244][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1161.536244][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1161.536244][   T73]      netlink_rcv_skb+0x130/0x360
[ 1161.536244][   T73]      netlink_unicast+0x449/0x710
[ 1161.536244][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1161.536244][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1161.536244][   T73]      ___sys_sendmsg+0xee/0x170
[ 1161.536244][   T73]      __sys_sendmsg+0xcd/0x170
[ 1161.536244][   T73]      do_syscall_64+0xc6/0x1e0
[ 1161.536244][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1161.536244][   T73] 
[ 1161.538163][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1161.538163][   T73]      dst_init+0x84/0x4a0
[ 1161.538163][   T73]      dst_alloc+0x97/0x150
[ 1161.538163][   T73]      ip6_dst_alloc+0x23/0x90
[ 1161.538163][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1161.538163][   T73]      ip6_pol_route+0x56f/0x840
[ 1161.538163][   T73]      fib6_rule_lookup+0x456/0x630
[ 1161.538163][   T73]      ip6_route_input+0x59c/0xa50
[ 1161.538163][   T73]      ipv6_rcv+0x397/0x810
[ 1161.538163][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1161.538163][   T73]      process_backlog+0x101/0x620
[ 1161.538163][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1161.538163][   T73]      net_rx_action+0x495/0xbe0
[ 1161.538163][   T73]      __do_softirq+0x1b5/0x7f6
[ 1161.538163][   T73] 
[ 1161.539924][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1161.539924][   T73]      netdev_get_by_index+0x5e/0x80
[ 1161.539924][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1161.539924][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1161.539924][   T73]      ip6_route_add+0x1c/0x140
[ 1161.539924][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1161.539924][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1161.539924][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1161.539924][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1161.539924][   T73]      netlink_rcv_skb+0x130/0x360
[ 1161.539924][   T73]      netlink_unicast+0x449/0x710
[ 1161.539924][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1161.539924][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1161.539924][   T73]      ___sys_sendmsg+0xee/0x170
[ 1161.539924][   T73]      __sys_sendmsg+0xcd/0x170
[ 1161.539924][   T73]      do_syscall_64+0xc6/0x1e0
[ 1161.539924][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1161.539924][   T73] 
[ 1161.541947][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1161.541947][   T73]      netdev_get_by_index+0x5e/0x80
[ 1161.541947][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1161.541947][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1161.541947][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1161.541947][   T73]      ipv6_add_addr+0x411/0x2000
[ 1161.541947][   T73]      inet6_addr_add+0x30e/0xa40
[ 1161.541947][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1161.541947][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1161.541947][   T73]      netlink_rcv_skb+0x130/0x360
[ 1161.541947][   T73]      netlink_unicast+0x449/0x710
[ 1161.541947][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1161.541947][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1161.541947][   T73]      ___sys_sendmsg+0xee/0x170
[ 1161.541947][   T73]      __sys_sendmsg+0xcd/0x170
[ 1161.541947][   T73]      do_syscall_64+0xc6/0x1e0
[ 1161.541947][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1161.541947][   T73] 
[ 1161.543955][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1161.543955][   T73]      netdev_get_by_index+0x5e/0x80
[ 1161.543955][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1161.543955][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1161.543955][   T73]      ip6_route_add+0x1c/0x140
[ 1161.543955][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1161.543955][   T73]      addrconf_add_dev+0xe2/0x170
[ 1161.543955][   T73]      inet6_addr_add+0x12f/0xa40
[ 1161.543955][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1161.543955][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1161.543955][   T73]      netlink_rcv_skb+0x130/0x360
[ 1161.543955][   T73]      netlink_unicast+0x449/0x710
[ 1161.543955][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1161.543955][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1161.543955][   T73]      ___sys_sendmsg+0xee/0x170
[ 1161.543955][   T73]      __sys_sendmsg+0xcd/0x170
[ 1161.543955][   T73]      do_syscall_64+0xc6/0x1e0
[ 1161.543955][   T73] 
[ 1161.545926][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1161.545926][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1161.545926][   T73]      ipv6_find_idev+0x102/0x170
[ 1161.545926][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1161.545926][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1161.545926][   T73]      netlink_rcv_skb+0x130/0x360
[ 1161.545926][   T73]      netlink_unicast+0x449/0x710
[ 1161.545926][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1161.545926][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1161.545926][   T73]      ___sys_sendmsg+0xee/0x170
[ 1161.545926][   T73]      __sys_sendmsg+0xcd/0x170
[ 1161.545926][   T73]      do_syscall_64+0xc6/0x1e0
[ 1161.545926][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1161.545926][   T73] 
[ 1161.547487][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1161.547487][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1161.547487][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1161.547487][   T73]      ipv6_find_idev+0x102/0x170
[ 1161.547487][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1161.547487][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1161.547487][   T73]      netlink_rcv_skb+0x130/0x360
[ 1161.547487][   T73]      netlink_unicast+0x449/0x710
[ 1161.547487][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1161.547487][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1161.547487][   T73]      ___sys_sendmsg+0xee/0x170
[ 1161.547487][   T73]      __sys_sendmsg+0xcd/0x170
[ 1161.547487][   T73]      do_syscall_64+0xc6/0x1e0
[ 1161.547487][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1161.547487][   T73] 
[ 1161.549229][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1161.549527][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1161.549527][   T73]      netdev_get_by_index+0x5e/0x80
[ 1161.549527][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1161.549527][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1161.549527][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1161.549527][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1161.549527][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1161.549527][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1161.549527][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1161.549527][   T73]      addrconf_dad_begin+0x310/0x670
[ 1161.549527][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1161.549527][   T73]      process_one_work+0x84d/0x18a0
[ 1161.549527][   T73]      worker_thread+0x587/0xd30
[ 1161.549527][   T73]      kthread+0x28a/0x350
[ 1161.549527][   T73]      ret_from_fork+0x31/0x70
[ 1161.549527][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1161.549527][   T73] 
[ 1161.551467][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1161.551467][   T73]      netdev_get_by_index+0x5e/0x80
[ 1161.551467][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1161.551467][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1161.551467][   T73]      ip6_route_add+0x1c/0x140
[ 1161.551467][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1161.551467][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1161.551467][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1161.551467][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1161.551467][   T73]      netlink_rcv_skb+0x130/0x360
[ 1161.551467][   T73]      netlink_unicast+0x449/0x710
[ 1161.551467][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1161.551467][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1161.551467][   T73]      ___sys_sendmsg+0xee/0x170
[ 1161.551467][   T73]      __sys_sendmsg+0xcd/0x170
[ 1161.551467][   T73]      do_syscall_64+0xc6/0x1e0
[ 1161.551467][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1161.551467][   T73] 
[ 1161.553491][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1161.553491][   T73]      netdev_get_by_index+0x5e/0x80
[ 1161.553491][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1161.553491][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1161.553491][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1161.553491][   T73]      ipv6_add_addr+0x411/0x2000
[ 1161.553491][   T73]      inet6_addr_add+0x30e/0xa40
[ 1161.553491][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1161.553491][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1161.553491][   T73]      netlink_rcv_skb+0x130/0x360
[ 1161.553491][   T73]      netlink_unicast+0x449/0x710
[ 1161.553491][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1161.553491][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1161.553491][   T73]      ___sys_sendmsg+0xee/0x170
[ 1161.553491][   T73]      __sys_sendmsg+0xcd/0x170
[ 1161.553491][   T73]      do_syscall_64+0xc6/0x1e0
[ 1161.553491][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1161.553491][   T73] 
[ 1161.555503][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1161.555503][   T73]      netdev_get_by_index+0x5e/0x80
[ 1161.555503][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1161.555503][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1161.555503][   T73]      ip6_route_add+0x1c/0x140
[ 1161.555503][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1161.555503][   T73]      addrconf_add_dev+0xe2/0x170
[ 1161.555503][   T73]      inet6_addr_add+0x12f/0xa40
[ 1161.555503][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1161.555503][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1161.555503][   T73]      netlink_rcv_skb+0x130/0x360
[ 1161.555503][   T73]      netlink_unicast+0x449/0x710
[ 1161.555503][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1161.555503][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1161.555503][   T73]      ___sys_sendmsg+0xee/0x170
[ 1161.555503][   T73]      __sys_sendmsg+0xcd/0x170
[ 1161.555503][   T73]      do_syscall_64+0xc6/0x1e0
[ 1161.555503][   T73] 
[ 1161.557490][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1161.557490][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1161.557490][   T73]      ipv6_find_idev+0x102/0x170
[ 1161.557490][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1161.557490][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1161.557490][   T73]      netlink_rcv_skb+0x130/0x360
[ 1161.557490][   T73]      netlink_unicast+0x449/0x710
[ 1161.557490][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1161.557490][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1161.557490][   T73]      ___sys_sendmsg+0xee/0x170
[ 1161.557490][   T73]      __sys_sendmsg+0xcd/0x170
[ 1161.557490][   T73]      do_syscall_64+0xc6/0x1e0
[ 1161.557490][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1161.557490][   T73] 
[ 1161.559046][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1161.559046][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1161.559046][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1161.559046][   T73]      ipv6_find_idev+0x102/0x170
[ 1161.559046][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1161.559046][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1161.559046][   T73]      netlink_rcv_skb+0x130/0x360
[ 1161.559046][   T73]      netlink_unicast+0x449/0x710
[ 1161.559046][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1161.559046][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1161.559046][   T73]      ___sys_sendmsg+0xee/0x170
[ 1161.559046][   T73]      __sys_sendmsg+0xcd/0x170
[ 1161.559046][   T73]      do_syscall_64+0xc6/0x1e0
[ 1161.559046][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1161.559046][   T73] 
[ 1161.560822][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1161.561096][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1161.561096][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1161.561096][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1161.561096][   T73]      fib6_nh_init+0xa22/0x1580
[ 1161.561096][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1161.561096][   T73]      ip6_route_add+0x1c/0x140
[ 1161.561096][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1161.561096][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1161.561096][   T73]      netlink_rcv_skb+0x130/0x360
[ 1161.561096][   T73]      netlink_unicast+0x449/0x710
[ 1161.561096][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1161.561096][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1161.561096][   T73]      ___sys_sendmsg+0xee/0x170
[ 1161.561096][   T73]      __sys_sendmsg+0xcd/0x170
[ 1161.561096][   T73]      do_syscall_64+0xc6/0x1e0
[ 1161.561096][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1161.561096][   T73] 
[ 1161.563112][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1161.563112][   T73]      dst_init+0x84/0x4a0
[ 1161.563112][   T73]      dst_alloc+0x97/0x150
[ 1161.563112][   T73]      ip6_dst_alloc+0x23/0x90
[ 1161.563112][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1161.563112][   T73]      ip6_pol_route+0x56f/0x840
[ 1161.563112][   T73]      fib6_rule_lookup+0x456/0x630
[ 1161.563112][   T73]      ip6_route_input+0x59c/0xa50
[ 1161.563112][   T73]      ipv6_rcv+0x397/0x810
[ 1161.563112][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1161.563112][   T73]      process_backlog+0x101/0x620
[ 1161.563112][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1161.563112][   T73]      net_rx_action+0x495/0xbe0
[ 1161.563112][   T73]      __do_softirq+0x1b5/0x7f6
[ 1161.563112][   T73] 
[ 1161.564998][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1161.564998][   T73]      netdev_get_by_index+0x5e/0x80
[ 1161.564998][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1161.564998][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1161.564998][   T73]      ip6_route_add+0x1c/0x140
[ 1161.564998][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1161.564998][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1161.564998][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1161.564998][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1161.564998][   T73]      netlink_rcv_skb+0x130/0x360
[ 1161.564998][   T73]      netlink_unicast+0x449/0x710
[ 1161.564998][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1161.564998][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1161.564998][   T73]      ___sys_sendmsg+0xee/0x170
[ 1161.564998][   T73]      __sys_sendmsg+0xcd/0x170
[ 1161.564998][   T73]      do_syscall_64+0xc6/0x1e0
[ 1161.564998][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1161.564998][   T73] 
[ 1161.567264][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1161.567264][   T73]      netdev_get_by_index+0x5e/0x80
[ 1161.567264][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1161.567264][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1161.567264][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1161.567264][   T73]      ipv6_add_addr+0x411/0x2000
[ 1161.567264][   T73]      inet6_addr_add+0x30e/0xa40
[ 1161.567264][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1161.567264][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1161.567264][   T73]      netlink_rcv_skb+0x130/0x360
[ 1161.567264][   T73]      netlink_unicast+0x449/0x710
[ 1161.567264][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1161.567264][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1161.567264][   T73]      ___sys_sendmsg+0xee/0x170
[ 1161.567264][   T73]      __sys_sendmsg+0xcd/0x170
[ 1161.567264][   T73]      do_syscall_64+0xc6/0x1e0
[ 1161.567264][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1161.567264][   T73] 
[ 1161.569543][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1161.569543][   T73]      netdev_get_by_index+0x5e/0x80
[ 1161.569543][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1161.569543][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1161.569543][   T73]      ip6_route_add+0x1c/0x140
[ 1161.569543][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1161.569543][   T73]      addrconf_add_dev+0xe2/0x170
[ 1161.569543][   T73]      inet6_addr_add+0x12f/0xa40
[ 1161.569543][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1161.569543][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1161.569543][   T73]      netlink_rcv_skb+0x130/0x360
[ 1161.569543][   T73]      netlink_unicast+0x449/0x710
[ 1161.569543][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1161.569543][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1161.569543][   T73]      ___sys_sendmsg+0xee/0x170
[ 1161.569543][   T73]      __sys_sendmsg+0xcd/0x170
[ 1161.569543][   T73]      do_syscall_64+0xc6/0x1e0
[ 1161.569543][   T73] 
[ 1161.571691][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1161.571691][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1161.571691][   T73]      ipv6_find_idev+0x102/0x170
[ 1161.571691][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1161.571691][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1161.571691][   T73]      netlink_rcv_skb+0x130/0x360
[ 1161.571691][   T73]      netlink_unicast+0x449/0x710
[ 1161.571691][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1161.571691][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1161.571691][   T73]      ___sys_sendmsg+0xee/0x170
[ 1161.571691][   T73]      __sys_sendmsg+0xcd/0x170
[ 1161.571691][   T73]      do_syscall_64+0xc6/0x1e0
[ 1161.571691][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1161.571691][   T73] 
[ 1161.573490][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1161.573490][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1161.573490][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1161.573490][   T73]      ipv6_find_idev+0x102/0x170
[ 1161.573490][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1161.573490][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1161.573490][   T73]      netlink_rcv_skb+0x130/0x360
[ 1161.573490][   T73]      netlink_unicast+0x449/0x710
[ 1161.573490][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1161.573490][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1161.573490][   T73]      ___sys_sendmsg+0xee/0x170
[ 1161.573490][   T73]      __sys_sendmsg+0xcd/0x170
[ 1161.573490][   T73]      do_syscall_64+0xc6/0x1e0
[ 1161.573490][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1161.573490][   T73] 
[ 1161.575439][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1161.576154][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1161.576154][   T73]      netdev_get_by_index+0x5e/0x80
[ 1161.576154][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1161.576154][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1161.576154][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1161.576154][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1161.576154][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1161.576154][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1161.576154][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1161.576154][   T73]      addrconf_dad_begin+0x310/0x670
[ 1161.576154][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1161.576154][   T73]      process_one_work+0x84d/0x18a0
[ 1161.576154][   T73]      worker_thread+0x587/0xd30
[ 1161.576154][   T73]      kthread+0x28a/0x350
[ 1161.576154][   T73]      ret_from_fork+0x31/0x70
[ 1161.576154][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1161.576154][   T73] 
[ 1161.578071][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1161.578071][   T73]      netdev_get_by_index+0x5e/0x80
[ 1161.578071][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1161.578071][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1161.578071][   T73]      ip6_route_add+0x1c/0x140
[ 1161.578071][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1161.578071][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1161.578071][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1161.578071][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1161.578071][   T73]      netlink_rcv_skb+0x130/0x360
[ 1161.578071][   T73]      netlink_unicast+0x449/0x710
[ 1161.578071][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1161.578071][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1161.578071][   T73]      ___sys_sendmsg+0xee/0x170
[ 1161.578071][   T73]      __sys_sendmsg+0xcd/0x170
[ 1161.578071][   T73]      do_syscall_64+0xc6/0x1e0
[ 1161.578071][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1161.578071][   T73] 
[ 1161.580211][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1161.580211][   T73]      netdev_get_by_index+0x5e/0x80
[ 1161.580211][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1161.580211][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1161.580211][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1161.580211][   T73]      ipv6_add_addr+0x411/0x2000
[ 1161.580211][   T73]      inet6_addr_add+0x30e/0xa40
[ 1161.580211][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1161.580211][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1161.580211][   T73]      netlink_rcv_skb+0x130/0x360
[ 1161.580211][   T73]      netlink_unicast+0x449/0x710
[ 1161.580211][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1161.580211][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1161.580211][   T73]      ___sys_sendmsg+0xee/0x170
[ 1161.580211][   T73]      __sys_sendmsg+0xcd/0x170
[ 1161.580211][   T73]      do_syscall_64+0xc6/0x1e0
[ 1161.580211][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1161.580211][   T73] 
[ 1161.582533][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1161.582533][   T73]      netdev_get_by_index+0x5e/0x80
[ 1161.582533][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1161.582533][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1161.582533][   T73]      ip6_route_add+0x1c/0x140
[ 1161.582533][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1161.582533][   T73]      addrconf_add_dev+0xe2/0x170
[ 1161.582533][   T73]      inet6_addr_add+0x12f/0xa40
[ 1161.582533][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1161.582533][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1161.582533][   T73]      netlink_rcv_skb+0x130/0x360
[ 1161.582533][   T73]      netlink_unicast+0x449/0x710
[ 1161.582533][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1161.582533][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1161.582533][   T73]      ___sys_sendmsg+0xee/0x170
[ 1161.582533][   T73]      __sys_sendmsg+0xcd/0x170
[ 1161.582533][   T73]      do_syscall_64+0xc6/0x1e0
[ 1161.582533][   T73] 
[ 1161.584755][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1161.584755][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1161.584755][   T73]      ipv6_find_idev+0x102/0x170
[ 1161.584755][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1161.584755][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1161.584755][   T73]      netlink_rcv_skb+0x130/0x360
[ 1161.584755][   T73]      netlink_unicast+0x449/0x710
[ 1161.584755][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1161.584755][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1161.584755][   T73]      ___sys_sendmsg+0xee/0x170
[ 1161.584755][   T73]      __sys_sendmsg+0xcd/0x170
[ 1161.584755][   T73]      do_syscall_64+0xc6/0x1e0
[ 1161.584755][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1161.584755][   T73] 
[ 1161.586549][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1161.586549][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1161.586549][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1161.586549][   T73]      ipv6_find_idev+0x102/0x170
[ 1161.586549][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1161.586549][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1161.586549][   T73]      netlink_rcv_skb+0x130/0x360
[ 1161.586549][   T73]      netlink_unicast+0x449/0x710
[ 1161.586549][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1161.586549][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1161.586549][   T73]      ___sys_sendmsg+0xee/0x170
[ 1161.586549][   T73]      __sys_sendmsg+0xcd/0x170
[ 1161.586549][   T73]      do_syscall_64+0xc6/0x1e0
[ 1161.586549][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1161.586549][   T73] 
[ 1171.823833][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1171.824252][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1171.824252][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1171.824252][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1171.824252][   T73]      fib6_nh_init+0xa22/0x1580
[ 1171.824252][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1171.824252][   T73]      ip6_route_add+0x1c/0x140
[ 1171.824252][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1171.824252][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1171.824252][   T73]      netlink_rcv_skb+0x130/0x360
[ 1171.824252][   T73]      netlink_unicast+0x449/0x710
[ 1171.824252][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1171.824252][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1171.824252][   T73]      ___sys_sendmsg+0xee/0x170
[ 1171.824252][   T73]      __sys_sendmsg+0xcd/0x170
[ 1171.824252][   T73]      do_syscall_64+0xc6/0x1e0
[ 1171.824252][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1171.824252][   T73] 
[ 1171.826159][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1171.826159][   T73]      dst_init+0x84/0x4a0
[ 1171.826159][   T73]      dst_alloc+0x97/0x150
[ 1171.826159][   T73]      ip6_dst_alloc+0x23/0x90
[ 1171.826159][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1171.826159][   T73]      ip6_pol_route+0x56f/0x840
[ 1171.826159][   T73]      fib6_rule_lookup+0x456/0x630
[ 1171.826159][   T73]      ip6_route_input+0x59c/0xa50
[ 1171.826159][   T73]      ipv6_rcv+0x397/0x810
[ 1171.826159][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1171.826159][   T73]      process_backlog+0x101/0x620
[ 1171.826159][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1171.826159][   T73]      net_rx_action+0x495/0xbe0
[ 1171.826159][   T73]      __do_softirq+0x1b5/0x7f6
[ 1171.826159][   T73] 
[ 1171.827836][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1171.827836][   T73]      netdev_get_by_index+0x5e/0x80
[ 1171.827836][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1171.827836][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1171.827836][   T73]      ip6_route_add+0x1c/0x140
[ 1171.827836][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1171.827836][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1171.827836][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1171.827836][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1171.827836][   T73]      netlink_rcv_skb+0x130/0x360
[ 1171.827836][   T73]      netlink_unicast+0x449/0x710
[ 1171.827836][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1171.827836][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1171.827836][   T73]      ___sys_sendmsg+0xee/0x170
[ 1171.827836][   T73]      __sys_sendmsg+0xcd/0x170
[ 1171.827836][   T73]      do_syscall_64+0xc6/0x1e0
[ 1171.827836][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1171.827836][   T73] 
[ 1171.829886][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1171.829886][   T73]      netdev_get_by_index+0x5e/0x80
[ 1171.829886][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1171.829886][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1171.829886][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1171.829886][   T73]      ipv6_add_addr+0x411/0x2000
[ 1171.829886][   T73]      inet6_addr_add+0x30e/0xa40
[ 1171.829886][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1171.829886][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1171.829886][   T73]      netlink_rcv_skb+0x130/0x360
[ 1171.829886][   T73]      netlink_unicast+0x449/0x710
[ 1171.829886][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1171.829886][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1171.829886][   T73]      ___sys_sendmsg+0xee/0x170
[ 1171.829886][   T73]      __sys_sendmsg+0xcd/0x170
[ 1171.829886][   T73]      do_syscall_64+0xc6/0x1e0
[ 1171.829886][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1171.829886][   T73] 
[ 1171.831913][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1171.831913][   T73]      netdev_get_by_index+0x5e/0x80
[ 1171.831913][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1171.831913][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1171.831913][   T73]      ip6_route_add+0x1c/0x140
[ 1171.831913][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1171.831913][   T73]      addrconf_add_dev+0xe2/0x170
[ 1171.831913][   T73]      inet6_addr_add+0x12f/0xa40
[ 1171.831913][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1171.831913][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1171.831913][   T73]      netlink_rcv_skb+0x130/0x360
[ 1171.831913][   T73]      netlink_unicast+0x449/0x710
[ 1171.831913][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1171.831913][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1171.831913][   T73]      ___sys_sendmsg+0xee/0x170
[ 1171.831913][   T73]      __sys_sendmsg+0xcd/0x170
[ 1171.831913][   T73]      do_syscall_64+0xc6/0x1e0
[ 1171.831913][   T73] 
[ 1171.833897][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1171.833897][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1171.833897][   T73]      ipv6_find_idev+0x102/0x170
[ 1171.833897][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1171.833897][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1171.833897][   T73]      netlink_rcv_skb+0x130/0x360
[ 1171.833897][   T73]      netlink_unicast+0x449/0x710
[ 1171.833897][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1171.833897][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1171.833897][   T73]      ___sys_sendmsg+0xee/0x170
[ 1171.833897][   T73]      __sys_sendmsg+0xcd/0x170
[ 1171.833897][   T73]      do_syscall_64+0xc6/0x1e0
[ 1171.833897][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1171.833897][   T73] 
[ 1171.835466][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1171.835466][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1171.835466][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1171.835466][   T73]      ipv6_find_idev+0x102/0x170
[ 1171.835466][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1171.835466][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1171.835466][   T73]      netlink_rcv_skb+0x130/0x360
[ 1171.835466][   T73]      netlink_unicast+0x449/0x710
[ 1171.835466][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1171.835466][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1171.835466][   T73]      ___sys_sendmsg+0xee/0x170
[ 1171.835466][   T73]      __sys_sendmsg+0xcd/0x170
[ 1171.835466][   T73]      do_syscall_64+0xc6/0x1e0
[ 1171.835466][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1171.835466][   T73] 
[ 1171.837210][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1171.837496][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1171.837496][   T73]      netdev_get_by_index+0x5e/0x80
[ 1171.837496][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1171.837496][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1171.837496][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1171.837496][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1171.837496][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1171.837496][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1171.837496][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1171.837496][   T73]      addrconf_dad_begin+0x310/0x670
[ 1171.837496][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1171.837496][   T73]      process_one_work+0x84d/0x18a0
[ 1171.837496][   T73]      worker_thread+0x587/0xd30
[ 1171.837496][   T73]      kthread+0x28a/0x350
[ 1171.837496][   T73]      ret_from_fork+0x31/0x70
[ 1171.837496][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1171.837496][   T73] 
[ 1171.839434][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1171.839434][   T73]      netdev_get_by_index+0x5e/0x80
[ 1171.839434][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1171.839434][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1171.839434][   T73]      ip6_route_add+0x1c/0x140
[ 1171.839434][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1171.839434][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1171.839434][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1171.839434][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1171.839434][   T73]      netlink_rcv_skb+0x130/0x360
[ 1171.839434][   T73]      netlink_unicast+0x449/0x710
[ 1171.839434][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1171.839434][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1171.839434][   T73]      ___sys_sendmsg+0xee/0x170
[ 1171.839434][   T73]      __sys_sendmsg+0xcd/0x170
[ 1171.839434][   T73]      do_syscall_64+0xc6/0x1e0
[ 1171.839434][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1171.839434][   T73] 
[ 1171.841593][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1171.841593][   T73]      netdev_get_by_index+0x5e/0x80
[ 1171.841593][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1171.841593][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1171.841593][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1171.841593][   T73]      ipv6_add_addr+0x411/0x2000
[ 1171.841593][   T73]      inet6_addr_add+0x30e/0xa40
[ 1171.841593][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1171.841593][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1171.841593][   T73]      netlink_rcv_skb+0x130/0x360
[ 1171.841593][   T73]      netlink_unicast+0x449/0x710
[ 1171.841593][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1171.841593][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1171.841593][   T73]      ___sys_sendmsg+0xee/0x170
[ 1171.841593][   T73]      __sys_sendmsg+0xcd/0x170
[ 1171.841593][   T73]      do_syscall_64+0xc6/0x1e0
[ 1171.841593][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1171.841593][   T73] 
[ 1171.843632][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1171.843632][   T73]      netdev_get_by_index+0x5e/0x80
[ 1171.843632][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1171.843632][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1171.843632][   T73]      ip6_route_add+0x1c/0x140
[ 1171.843632][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1171.843632][   T73]      addrconf_add_dev+0xe2/0x170
[ 1171.843632][   T73]      inet6_addr_add+0x12f/0xa40
[ 1171.843632][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1171.843632][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1171.843632][   T73]      netlink_rcv_skb+0x130/0x360
[ 1171.843632][   T73]      netlink_unicast+0x449/0x710
[ 1171.843632][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1171.843632][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1171.843632][   T73]      ___sys_sendmsg+0xee/0x170
[ 1171.843632][   T73]      __sys_sendmsg+0xcd/0x170
[ 1171.843632][   T73]      do_syscall_64+0xc6/0x1e0
[ 1171.843632][   T73] 
[ 1171.845625][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1171.845625][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1171.845625][   T73]      ipv6_find_idev+0x102/0x170
[ 1171.845625][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1171.845625][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1171.845625][   T73]      netlink_rcv_skb+0x130/0x360
[ 1171.845625][   T73]      netlink_unicast+0x449/0x710
[ 1171.845625][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1171.845625][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1171.845625][   T73]      ___sys_sendmsg+0xee/0x170
[ 1171.845625][   T73]      __sys_sendmsg+0xcd/0x170
[ 1171.845625][   T73]      do_syscall_64+0xc6/0x1e0
[ 1171.845625][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1171.845625][   T73] 
[ 1171.847181][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1171.847181][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1171.847181][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1171.847181][   T73]      ipv6_find_idev+0x102/0x170
[ 1171.847181][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1171.847181][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1171.847181][   T73]      netlink_rcv_skb+0x130/0x360
[ 1171.847181][   T73]      netlink_unicast+0x449/0x710
[ 1171.847181][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1171.847181][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1171.847181][   T73]      ___sys_sendmsg+0xee/0x170
[ 1171.847181][   T73]      __sys_sendmsg+0xcd/0x170
[ 1171.847181][   T73]      do_syscall_64+0xc6/0x1e0
[ 1171.847181][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1171.847181][   T73] 
[ 1171.848936][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1171.849220][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1171.849220][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1171.849220][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1171.849220][   T73]      fib6_nh_init+0xa22/0x1580
[ 1171.849220][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1171.849220][   T73]      ip6_route_add+0x1c/0x140
[ 1171.849220][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1171.849220][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1171.849220][   T73]      netlink_rcv_skb+0x130/0x360
[ 1171.849220][   T73]      netlink_unicast+0x449/0x710
[ 1171.849220][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1171.849220][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1171.849220][   T73]      ___sys_sendmsg+0xee/0x170
[ 1171.849220][   T73]      __sys_sendmsg+0xcd/0x170
[ 1171.849220][   T73]      do_syscall_64+0xc6/0x1e0
[ 1171.849220][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1171.849220][   T73] 
[ 1171.851320][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1171.851320][   T73]      dst_init+0x84/0x4a0
[ 1171.851320][   T73]      dst_alloc+0x97/0x150
[ 1171.851320][   T73]      ip6_dst_alloc+0x23/0x90
[ 1171.851320][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1171.851320][   T73]      ip6_pol_route+0x56f/0x840
[ 1171.851320][   T73]      fib6_rule_lookup+0x456/0x630
[ 1171.851320][   T73]      ip6_route_input+0x59c/0xa50
[ 1171.851320][   T73]      ipv6_rcv+0x397/0x810
[ 1171.851320][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1171.851320][   T73]      process_backlog+0x101/0x620
[ 1171.851320][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1171.851320][   T73]      net_rx_action+0x495/0xbe0
[ 1171.851320][   T73]      __do_softirq+0x1b5/0x7f6
[ 1171.851320][   T73] 
[ 1171.853226][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1171.853226][   T73]      netdev_get_by_index+0x5e/0x80
[ 1171.853226][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1171.853226][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1171.853226][   T73]      ip6_route_add+0x1c/0x140
[ 1171.853226][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1171.853226][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1171.853226][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1171.853226][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1171.853226][   T73]      netlink_rcv_skb+0x130/0x360
[ 1171.853226][   T73]      netlink_unicast+0x449/0x710
[ 1171.853226][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1171.853226][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1171.853226][   T73]      ___sys_sendmsg+0xee/0x170
[ 1171.853226][   T73]      __sys_sendmsg+0xcd/0x170
[ 1171.853226][   T73]      do_syscall_64+0xc6/0x1e0
[ 1171.853226][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1171.853226][   T73] 
[ 1171.855490][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1171.855490][   T73]      netdev_get_by_index+0x5e/0x80
[ 1171.855490][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1171.855490][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1171.855490][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1171.855490][   T73]      ipv6_add_addr+0x411/0x2000
[ 1171.855490][   T73]      inet6_addr_add+0x30e/0xa40
[ 1171.855490][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1171.855490][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1171.855490][   T73]      netlink_rcv_skb+0x130/0x360
[ 1171.855490][   T73]      netlink_unicast+0x449/0x710
[ 1171.855490][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1171.855490][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1171.855490][   T73]      ___sys_sendmsg+0xee/0x170
[ 1171.855490][   T73]      __sys_sendmsg+0xcd/0x170
[ 1171.855490][   T73]      do_syscall_64+0xc6/0x1e0
[ 1171.855490][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1171.855490][   T73] 
[ 1171.857759][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1171.857759][   T73]      netdev_get_by_index+0x5e/0x80
[ 1171.857759][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1171.857759][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1171.857759][   T73]      ip6_route_add+0x1c/0x140
[ 1171.857759][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1171.857759][   T73]      addrconf_add_dev+0xe2/0x170
[ 1171.857759][   T73]      inet6_addr_add+0x12f/0xa40
[ 1171.857759][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1171.857759][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1171.857759][   T73]      netlink_rcv_skb+0x130/0x360
[ 1171.857759][   T73]      netlink_unicast+0x449/0x710
[ 1171.857759][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1171.857759][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1171.857759][   T73]      ___sys_sendmsg+0xee/0x170
[ 1171.857759][   T73]      __sys_sendmsg+0xcd/0x170
[ 1171.857759][   T73]      do_syscall_64+0xc6/0x1e0
[ 1171.857759][   T73] 
[ 1171.859922][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1171.859922][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1171.859922][   T73]      ipv6_find_idev+0x102/0x170
[ 1171.859922][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1171.859922][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1171.859922][   T73]      netlink_rcv_skb+0x130/0x360
[ 1171.859922][   T73]      netlink_unicast+0x449/0x710
[ 1171.859922][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1171.859922][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1171.859922][   T73]      ___sys_sendmsg+0xee/0x170
[ 1171.859922][   T73]      __sys_sendmsg+0xcd/0x170
[ 1171.859922][   T73]      do_syscall_64+0xc6/0x1e0
[ 1171.859922][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1171.859922][   T73] 
[ 1171.861737][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1171.861737][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1171.861737][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1171.861737][   T73]      ipv6_find_idev+0x102/0x170
[ 1171.861737][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1171.861737][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1171.861737][   T73]      netlink_rcv_skb+0x130/0x360
[ 1171.861737][   T73]      netlink_unicast+0x449/0x710
[ 1171.861737][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1171.861737][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1171.861737][   T73]      ___sys_sendmsg+0xee/0x170
[ 1171.861737][   T73]      __sys_sendmsg+0xcd/0x170
[ 1171.861737][   T73]      do_syscall_64+0xc6/0x1e0
[ 1171.861737][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1171.861737][   T73] 
[ 1171.863711][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1171.863988][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1171.863988][   T73]      netdev_get_by_index+0x5e/0x80
[ 1171.863988][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1171.863988][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1171.863988][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1171.863988][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1171.863988][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1171.863988][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1171.863988][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1171.863988][   T73]      addrconf_dad_begin+0x310/0x670
[ 1171.863988][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1171.863988][   T73]      process_one_work+0x84d/0x18a0
[ 1171.863988][   T73]      worker_thread+0x587/0xd30
[ 1171.863988][   T73]      kthread+0x28a/0x350
[ 1171.863988][   T73]      ret_from_fork+0x31/0x70
[ 1171.863988][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1171.863988][   T73] 
[ 1171.866205][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1171.866205][   T73]      netdev_get_by_index+0x5e/0x80
[ 1171.866205][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1171.866205][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1171.866205][   T73]      ip6_route_add+0x1c/0x140
[ 1171.866205][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1171.866205][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1171.866205][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1171.866205][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1171.866205][   T73]      netlink_rcv_skb+0x130/0x360
[ 1171.866205][   T73]      netlink_unicast+0x449/0x710
[ 1171.866205][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1171.866205][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1171.866205][   T73]      ___sys_sendmsg+0xee/0x170
[ 1171.866205][   T73]      __sys_sendmsg+0xcd/0x170
[ 1171.866205][   T73]      do_syscall_64+0xc6/0x1e0
[ 1171.866205][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1171.866205][   T73] 
[ 1171.868527][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1171.868527][   T73]      netdev_get_by_index+0x5e/0x80
[ 1171.868527][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1171.868527][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1171.868527][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1171.868527][   T73]      ipv6_add_addr+0x411/0x2000
[ 1171.868527][   T73]      inet6_addr_add+0x30e/0xa40
[ 1171.868527][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1171.868527][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1171.868527][   T73]      netlink_rcv_skb+0x130/0x360
[ 1171.868527][   T73]      netlink_unicast+0x449/0x710
[ 1171.868527][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1171.868527][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1171.868527][   T73]      ___sys_sendmsg+0xee/0x170
[ 1171.868527][   T73]      __sys_sendmsg+0xcd/0x170
[ 1171.868527][   T73]      do_syscall_64+0xc6/0x1e0
[ 1171.868527][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1171.868527][   T73] 
[ 1171.870786][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1171.870786][   T73]      netdev_get_by_index+0x5e/0x80
[ 1171.870786][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1171.870786][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1171.870786][   T73]      ip6_route_add+0x1c/0x140
[ 1171.870786][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1171.870786][   T73]      addrconf_add_dev+0xe2/0x170
[ 1171.870786][   T73]      inet6_addr_add+0x12f/0xa40
[ 1171.870786][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1171.870786][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1171.870786][   T73]      netlink_rcv_skb+0x130/0x360
[ 1171.870786][   T73]      netlink_unicast+0x449/0x710
[ 1171.870786][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1171.870786][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1171.870786][   T73]      ___sys_sendmsg+0xee/0x170
[ 1171.870786][   T73]      __sys_sendmsg+0xcd/0x170
[ 1171.870786][   T73]      do_syscall_64+0xc6/0x1e0
[ 1171.870786][   T73] 
[ 1171.873116][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1171.873116][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1171.873116][   T73]      ipv6_find_idev+0x102/0x170
[ 1171.873116][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1171.873116][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1171.873116][   T73]      netlink_rcv_skb+0x130/0x360
[ 1171.873116][   T73]      netlink_unicast+0x449/0x710
[ 1171.873116][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1171.873116][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1171.873116][   T73]      ___sys_sendmsg+0xee/0x170
[ 1171.873116][   T73]      __sys_sendmsg+0xcd/0x170
[ 1171.873116][   T73]      do_syscall_64+0xc6/0x1e0
[ 1171.873116][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1171.873116][   T73] 
[ 1171.874882][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1171.874882][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1171.874882][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1171.874882][   T73]      ipv6_find_idev+0x102/0x170
[ 1171.874882][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1171.874882][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1171.874882][   T73]      netlink_rcv_skb+0x130/0x360
[ 1171.874882][   T73]      netlink_unicast+0x449/0x710
[ 1171.874882][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1171.874882][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1171.874882][   T73]      ___sys_sendmsg+0xee/0x170
[ 1171.874882][   T73]      __sys_sendmsg+0xcd/0x170
[ 1171.874882][   T73]      do_syscall_64+0xc6/0x1e0
[ 1171.874882][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1171.874882][   T73] 
[ 1182.119760][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1182.120248][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1182.120248][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1182.120248][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1182.120248][   T73]      fib6_nh_init+0xa22/0x1580
[ 1182.120248][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1182.120248][   T73]      ip6_route_add+0x1c/0x140
[ 1182.120248][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1182.120248][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1182.120248][   T73]      netlink_rcv_skb+0x130/0x360
[ 1182.120248][   T73]      netlink_unicast+0x449/0x710
[ 1182.120248][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1182.120248][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1182.120248][   T73]      ___sys_sendmsg+0xee/0x170
[ 1182.120248][   T73]      __sys_sendmsg+0xcd/0x170
[ 1182.120248][   T73]      do_syscall_64+0xc6/0x1e0
[ 1182.120248][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1182.120248][   T73] 
[ 1182.122443][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1182.122443][   T73]      dst_init+0x84/0x4a0
[ 1182.122443][   T73]      dst_alloc+0x97/0x150
[ 1182.122443][   T73]      ip6_dst_alloc+0x23/0x90
[ 1182.122443][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1182.122443][   T73]      ip6_pol_route+0x56f/0x840
[ 1182.122443][   T73]      fib6_rule_lookup+0x456/0x630
[ 1182.122443][   T73]      ip6_route_input+0x59c/0xa50
[ 1182.122443][   T73]      ipv6_rcv+0x397/0x810
[ 1182.122443][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1182.122443][   T73]      process_backlog+0x101/0x620
[ 1182.122443][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1182.122443][   T73]      net_rx_action+0x495/0xbe0
[ 1182.122443][   T73]      __do_softirq+0x1b5/0x7f6
[ 1182.122443][   T73] 
[ 1182.124174][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1182.124174][   T73]      netdev_get_by_index+0x5e/0x80
[ 1182.124174][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1182.124174][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1182.124174][   T73]      ip6_route_add+0x1c/0x140
[ 1182.124174][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1182.124174][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1182.124174][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1182.124174][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1182.124174][   T73]      netlink_rcv_skb+0x130/0x360
[ 1182.124174][   T73]      netlink_unicast+0x449/0x710
[ 1182.124174][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1182.124174][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1182.124174][   T73]      ___sys_sendmsg+0xee/0x170
[ 1182.124174][   T73]      __sys_sendmsg+0xcd/0x170
[ 1182.124174][   T73]      do_syscall_64+0xc6/0x1e0
[ 1182.124174][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1182.124174][   T73] 
[ 1182.126200][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1182.126200][   T73]      netdev_get_by_index+0x5e/0x80
[ 1182.126200][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1182.126200][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1182.126200][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1182.126200][   T73]      ipv6_add_addr+0x411/0x2000
[ 1182.126200][   T73]      inet6_addr_add+0x30e/0xa40
[ 1182.126200][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1182.126200][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1182.126200][   T73]      netlink_rcv_skb+0x130/0x360
[ 1182.126200][   T73]      netlink_unicast+0x449/0x710
[ 1182.126200][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1182.126200][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1182.126200][   T73]      ___sys_sendmsg+0xee/0x170
[ 1182.126200][   T73]      __sys_sendmsg+0xcd/0x170
[ 1182.126200][   T73]      do_syscall_64+0xc6/0x1e0
[ 1182.126200][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1182.126200][   T73] 
[ 1182.128222][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1182.128222][   T73]      netdev_get_by_index+0x5e/0x80
[ 1182.128222][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1182.128222][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1182.128222][   T73]      ip6_route_add+0x1c/0x140
[ 1182.128222][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1182.128222][   T73]      addrconf_add_dev+0xe2/0x170
[ 1182.128222][   T73]      inet6_addr_add+0x12f/0xa40
[ 1182.128222][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1182.128222][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1182.128222][   T73]      netlink_rcv_skb+0x130/0x360
[ 1182.128222][   T73]      netlink_unicast+0x449/0x710
[ 1182.128222][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1182.128222][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1182.128222][   T73]      ___sys_sendmsg+0xee/0x170
[ 1182.128222][   T73]      __sys_sendmsg+0xcd/0x170
[ 1182.128222][   T73]      do_syscall_64+0xc6/0x1e0
[ 1182.128222][   T73] 
[ 1182.130229][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1182.130229][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1182.130229][   T73]      ipv6_find_idev+0x102/0x170
[ 1182.130229][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1182.130229][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1182.130229][   T73]      netlink_rcv_skb+0x130/0x360
[ 1182.130229][   T73]      netlink_unicast+0x449/0x710
[ 1182.130229][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1182.130229][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1182.130229][   T73]      ___sys_sendmsg+0xee/0x170
[ 1182.130229][   T73]      __sys_sendmsg+0xcd/0x170
[ 1182.130229][   T73]      do_syscall_64+0xc6/0x1e0
[ 1182.130229][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1182.130229][   T73] 
[ 1182.131784][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1182.131784][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1182.131784][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1182.131784][   T73]      ipv6_find_idev+0x102/0x170
[ 1182.131784][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1182.131784][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1182.131784][   T73]      netlink_rcv_skb+0x130/0x360
[ 1182.131784][   T73]      netlink_unicast+0x449/0x710
[ 1182.131784][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1182.131784][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1182.131784][   T73]      ___sys_sendmsg+0xee/0x170
[ 1182.131784][   T73]      __sys_sendmsg+0xcd/0x170
[ 1182.131784][   T73]      do_syscall_64+0xc6/0x1e0
[ 1182.131784][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1182.131784][   T73] 
[ 1182.133543][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1182.133936][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1182.133936][   T73]      netdev_get_by_index+0x5e/0x80
[ 1182.133936][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1182.133936][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1182.133936][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1182.133936][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1182.133936][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1182.133936][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1182.133936][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1182.133936][   T73]      addrconf_dad_begin+0x310/0x670
[ 1182.133936][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1182.133936][   T73]      process_one_work+0x84d/0x18a0
[ 1182.133936][   T73]      worker_thread+0x587/0xd30
[ 1182.133936][   T73]      kthread+0x28a/0x350
[ 1182.133936][   T73]      ret_from_fork+0x31/0x70
[ 1182.133936][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1182.133936][   T73] 
[ 1182.135866][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1182.135866][   T73]      netdev_get_by_index+0x5e/0x80
[ 1182.135866][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1182.135866][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1182.135866][   T73]      ip6_route_add+0x1c/0x140
[ 1182.135866][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1182.135866][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1182.135866][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1182.135866][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1182.135866][   T73]      netlink_rcv_skb+0x130/0x360
[ 1182.135866][   T73]      netlink_unicast+0x449/0x710
[ 1182.135866][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1182.135866][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1182.135866][   T73]      ___sys_sendmsg+0xee/0x170
[ 1182.135866][   T73]      __sys_sendmsg+0xcd/0x170
[ 1182.135866][   T73]      do_syscall_64+0xc6/0x1e0
[ 1182.135866][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1182.135866][   T73] 
[ 1182.137880][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1182.137880][   T73]      netdev_get_by_index+0x5e/0x80
[ 1182.137880][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1182.137880][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1182.137880][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1182.137880][   T73]      ipv6_add_addr+0x411/0x2000
[ 1182.137880][   T73]      inet6_addr_add+0x30e/0xa40
[ 1182.137880][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1182.137880][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1182.137880][   T73]      netlink_rcv_skb+0x130/0x360
[ 1182.137880][   T73]      netlink_unicast+0x449/0x710
[ 1182.137880][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1182.137880][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1182.137880][   T73]      ___sys_sendmsg+0xee/0x170
[ 1182.137880][   T73]      __sys_sendmsg+0xcd/0x170
[ 1182.137880][   T73]      do_syscall_64+0xc6/0x1e0
[ 1182.137880][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1182.137880][   T73] 
[ 1182.139902][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1182.139902][   T73]      netdev_get_by_index+0x5e/0x80
[ 1182.139902][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1182.139902][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1182.139902][   T73]      ip6_route_add+0x1c/0x140
[ 1182.139902][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1182.139902][   T73]      addrconf_add_dev+0xe2/0x170
[ 1182.139902][   T73]      inet6_addr_add+0x12f/0xa40
[ 1182.139902][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1182.139902][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1182.139902][   T73]      netlink_rcv_skb+0x130/0x360
[ 1182.139902][   T73]      netlink_unicast+0x449/0x710
[ 1182.139902][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1182.139902][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1182.139902][   T73]      ___sys_sendmsg+0xee/0x170
[ 1182.139902][   T73]      __sys_sendmsg+0xcd/0x170
[ 1182.139902][   T73]      do_syscall_64+0xc6/0x1e0
[ 1182.139902][   T73] 
[ 1182.141892][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1182.141892][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1182.141892][   T73]      ipv6_find_idev+0x102/0x170
[ 1182.141892][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1182.141892][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1182.141892][   T73]      netlink_rcv_skb+0x130/0x360
[ 1182.141892][   T73]      netlink_unicast+0x449/0x710
[ 1182.141892][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1182.141892][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1182.141892][   T73]      ___sys_sendmsg+0xee/0x170
[ 1182.141892][   T73]      __sys_sendmsg+0xcd/0x170
[ 1182.141892][   T73]      do_syscall_64+0xc6/0x1e0
[ 1182.141892][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1182.141892][   T73] 
[ 1182.143464][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1182.143464][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1182.143464][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1182.143464][   T73]      ipv6_find_idev+0x102/0x170
[ 1182.143464][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1182.143464][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1182.143464][   T73]      netlink_rcv_skb+0x130/0x360
[ 1182.143464][   T73]      netlink_unicast+0x449/0x710
[ 1182.143464][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1182.143464][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1182.143464][   T73]      ___sys_sendmsg+0xee/0x170
[ 1182.143464][   T73]      __sys_sendmsg+0xcd/0x170
[ 1182.143464][   T73]      do_syscall_64+0xc6/0x1e0
[ 1182.143464][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1182.143464][   T73] 
[ 1182.145170][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1182.145453][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1182.145453][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1182.145453][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1182.145453][   T73]      fib6_nh_init+0xa22/0x1580
[ 1182.145453][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1182.145453][   T73]      ip6_route_add+0x1c/0x140
[ 1182.145453][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1182.145453][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1182.145453][   T73]      netlink_rcv_skb+0x130/0x360
[ 1182.145453][   T73]      netlink_unicast+0x449/0x710
[ 1182.145453][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1182.145453][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1182.145453][   T73]      ___sys_sendmsg+0xee/0x170
[ 1182.145453][   T73]      __sys_sendmsg+0xcd/0x170
[ 1182.145453][   T73]      do_syscall_64+0xc6/0x1e0
[ 1182.145453][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1182.145453][   T73] 
[ 1182.147549][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1182.147549][   T73]      dst_init+0x84/0x4a0
[ 1182.147549][   T73]      dst_alloc+0x97/0x150
[ 1182.147549][   T73]      ip6_dst_alloc+0x23/0x90
[ 1182.147549][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1182.147549][   T73]      ip6_pol_route+0x56f/0x840
[ 1182.147549][   T73]      fib6_rule_lookup+0x456/0x630
[ 1182.147549][   T73]      ip6_route_input+0x59c/0xa50
[ 1182.147549][   T73]      ipv6_rcv+0x397/0x810
[ 1182.147549][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1182.147549][   T73]      process_backlog+0x101/0x620
[ 1182.147549][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1182.147549][   T73]      net_rx_action+0x495/0xbe0
[ 1182.147549][   T73]      __do_softirq+0x1b5/0x7f6
[ 1182.147549][   T73] 
[ 1182.149383][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1182.149383][   T73]      netdev_get_by_index+0x5e/0x80
[ 1182.149383][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1182.149383][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1182.149383][   T73]      ip6_route_add+0x1c/0x140
[ 1182.149383][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1182.149383][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1182.149383][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1182.149383][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1182.149383][   T73]      netlink_rcv_skb+0x130/0x360
[ 1182.149383][   T73]      netlink_unicast+0x449/0x710
[ 1182.149383][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1182.149383][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1182.149383][   T73]      ___sys_sendmsg+0xee/0x170
[ 1182.149383][   T73]      __sys_sendmsg+0xcd/0x170
[ 1182.149383][   T73]      do_syscall_64+0xc6/0x1e0
[ 1182.149383][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1182.149383][   T73] 
[ 1182.151658][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1182.151658][   T73]      netdev_get_by_index+0x5e/0x80
[ 1182.151658][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1182.151658][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1182.151658][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1182.151658][   T73]      ipv6_add_addr+0x411/0x2000
[ 1182.151658][   T73]      inet6_addr_add+0x30e/0xa40
[ 1182.151658][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1182.151658][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1182.151658][   T73]      netlink_rcv_skb+0x130/0x360
[ 1182.151658][   T73]      netlink_unicast+0x449/0x710
[ 1182.151658][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1182.151658][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1182.151658][   T73]      ___sys_sendmsg+0xee/0x170
[ 1182.151658][   T73]      __sys_sendmsg+0xcd/0x170
[ 1182.151658][   T73]      do_syscall_64+0xc6/0x1e0
[ 1182.151658][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1182.151658][   T73] 
[ 1182.153971][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1182.153971][   T73]      netdev_get_by_index+0x5e/0x80
[ 1182.153971][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1182.153971][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1182.153971][   T73]      ip6_route_add+0x1c/0x140
[ 1182.153971][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1182.153971][   T73]      addrconf_add_dev+0xe2/0x170
[ 1182.153971][   T73]      inet6_addr_add+0x12f/0xa40
[ 1182.153971][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1182.153971][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1182.153971][   T73]      netlink_rcv_skb+0x130/0x360
[ 1182.153971][   T73]      netlink_unicast+0x449/0x710
[ 1182.153971][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1182.153971][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1182.153971][   T73]      ___sys_sendmsg+0xee/0x170
[ 1182.153971][   T73]      __sys_sendmsg+0xcd/0x170
[ 1182.153971][   T73]      do_syscall_64+0xc6/0x1e0
[ 1182.153971][   T73] 
[ 1182.156145][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1182.156145][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1182.156145][   T73]      ipv6_find_idev+0x102/0x170
[ 1182.156145][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1182.156145][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1182.156145][   T73]      netlink_rcv_skb+0x130/0x360
[ 1182.156145][   T73]      netlink_unicast+0x449/0x710
[ 1182.156145][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1182.156145][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1182.156145][   T73]      ___sys_sendmsg+0xee/0x170
[ 1182.156145][   T73]      __sys_sendmsg+0xcd/0x170
[ 1182.156145][   T73]      do_syscall_64+0xc6/0x1e0
[ 1182.156145][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1182.156145][   T73] 
[ 1182.157875][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1182.157875][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1182.157875][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1182.157875][   T73]      ipv6_find_idev+0x102/0x170
[ 1182.157875][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1182.157875][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1182.157875][   T73]      netlink_rcv_skb+0x130/0x360
[ 1182.157875][   T73]      netlink_unicast+0x449/0x710
[ 1182.157875][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1182.157875][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1182.157875][   T73]      ___sys_sendmsg+0xee/0x170
[ 1182.157875][   T73]      __sys_sendmsg+0xcd/0x170
[ 1182.157875][   T73]      do_syscall_64+0xc6/0x1e0
[ 1182.157875][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1182.157875][   T73] 
[ 1182.159825][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1182.160101][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1182.160101][   T73]      netdev_get_by_index+0x5e/0x80
[ 1182.160101][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1182.160101][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1182.160101][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1182.160101][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1182.160101][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1182.160101][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1182.160101][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1182.160101][   T73]      addrconf_dad_begin+0x310/0x670
[ 1182.160101][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1182.160101][   T73]      process_one_work+0x84d/0x18a0
[ 1182.160101][   T73]      worker_thread+0x587/0xd30
[ 1182.160101][   T73]      kthread+0x28a/0x350
[ 1182.160101][   T73]      ret_from_fork+0x31/0x70
[ 1182.160101][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1182.160101][   T73] 
[ 1182.162267][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1182.162267][   T73]      netdev_get_by_index+0x5e/0x80
[ 1182.162267][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1182.162267][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1182.162267][   T73]      ip6_route_add+0x1c/0x140
[ 1182.162267][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1182.162267][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1182.162267][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1182.162267][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1182.162267][   T73]      netlink_rcv_skb+0x130/0x360
[ 1182.162267][   T73]      netlink_unicast+0x449/0x710
[ 1182.162267][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1182.162267][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1182.162267][   T73]      ___sys_sendmsg+0xee/0x170
[ 1182.162267][   T73]      __sys_sendmsg+0xcd/0x170
[ 1182.162267][   T73]      do_syscall_64+0xc6/0x1e0
[ 1182.162267][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1182.162267][   T73] 
[ 1182.164577][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1182.164577][   T73]      netdev_get_by_index+0x5e/0x80
[ 1182.164577][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1182.164577][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1182.164577][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1182.164577][   T73]      ipv6_add_addr+0x411/0x2000
[ 1182.164577][   T73]      inet6_addr_add+0x30e/0xa40
[ 1182.164577][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1182.164577][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1182.164577][   T73]      netlink_rcv_skb+0x130/0x360
[ 1182.164577][   T73]      netlink_unicast+0x449/0x710
[ 1182.164577][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1182.164577][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1182.164577][   T73]      ___sys_sendmsg+0xee/0x170
[ 1182.164577][   T73]      __sys_sendmsg+0xcd/0x170
[ 1182.164577][   T73]      do_syscall_64+0xc6/0x1e0
[ 1182.164577][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1182.164577][   T73] 
[ 1182.166770][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1182.166770][   T73]      netdev_get_by_index+0x5e/0x80
[ 1182.166770][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1182.166770][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1182.166770][   T73]      ip6_route_add+0x1c/0x140
[ 1182.166770][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1182.166770][   T73]      addrconf_add_dev+0xe2/0x170
[ 1182.166770][   T73]      inet6_addr_add+0x12f/0xa40
[ 1182.166770][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1182.166770][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1182.166770][   T73]      netlink_rcv_skb+0x130/0x360
[ 1182.166770][   T73]      netlink_unicast+0x449/0x710
[ 1182.166770][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1182.166770][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1182.166770][   T73]      ___sys_sendmsg+0xee/0x170
[ 1182.166770][   T73]      __sys_sendmsg+0xcd/0x170
[ 1182.166770][   T73]      do_syscall_64+0xc6/0x1e0
[ 1182.166770][   T73] 
[ 1182.168993][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1182.168993][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1182.168993][   T73]      ipv6_find_idev+0x102/0x170
[ 1182.168993][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1182.168993][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1182.168993][   T73]      netlink_rcv_skb+0x130/0x360
[ 1182.168993][   T73]      netlink_unicast+0x449/0x710
[ 1182.168993][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1182.168993][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1182.168993][   T73]      ___sys_sendmsg+0xee/0x170
[ 1182.168993][   T73]      __sys_sendmsg+0xcd/0x170
[ 1182.168993][   T73]      do_syscall_64+0xc6/0x1e0
[ 1182.168993][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1182.168993][   T73] 
[ 1182.170728][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1182.170728][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1182.170728][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1182.170728][   T73]      ipv6_find_idev+0x102/0x170
[ 1182.170728][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1182.170728][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1182.170728][   T73]      netlink_rcv_skb+0x130/0x360
[ 1182.170728][   T73]      netlink_unicast+0x449/0x710
[ 1182.170728][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1182.170728][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1182.170728][   T73]      ___sys_sendmsg+0xee/0x170
[ 1182.170728][   T73]      __sys_sendmsg+0xcd/0x170
[ 1182.170728][   T73]      do_syscall_64+0xc6/0x1e0
[ 1182.170728][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1182.170728][   T73] 
[ 1192.415760][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1192.416452][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1192.416452][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1192.416452][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1192.416452][   T73]      fib6_nh_init+0xa22/0x1580
[ 1192.416452][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1192.416452][   T73]      ip6_route_add+0x1c/0x140
[ 1192.416452][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1192.416452][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1192.416452][   T73]      netlink_rcv_skb+0x130/0x360
[ 1192.416452][   T73]      netlink_unicast+0x449/0x710
[ 1192.416452][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1192.416452][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1192.416452][   T73]      ___sys_sendmsg+0xee/0x170
[ 1192.416452][   T73]      __sys_sendmsg+0xcd/0x170
[ 1192.416452][   T73]      do_syscall_64+0xc6/0x1e0
[ 1192.416452][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1192.416452][   T73] 
[ 1192.418810][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1192.418810][   T73]      dst_init+0x84/0x4a0
[ 1192.418810][   T73]      dst_alloc+0x97/0x150
[ 1192.418810][   T73]      ip6_dst_alloc+0x23/0x90
[ 1192.418810][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1192.418810][   T73]      ip6_pol_route+0x56f/0x840
[ 1192.418810][   T73]      fib6_rule_lookup+0x456/0x630
[ 1192.418810][   T73]      ip6_route_input+0x59c/0xa50
[ 1192.418810][   T73]      ipv6_rcv+0x397/0x810
[ 1192.418810][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1192.418810][   T73]      process_backlog+0x101/0x620
[ 1192.418810][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1192.418810][   T73]      net_rx_action+0x495/0xbe0
[ 1192.418810][   T73]      __do_softirq+0x1b5/0x7f6
[ 1192.418810][   T73] 
[ 1192.421050][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1192.421050][   T73]      netdev_get_by_index+0x5e/0x80
[ 1192.421050][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1192.421050][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1192.421050][   T73]      ip6_route_add+0x1c/0x140
[ 1192.421050][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1192.421050][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1192.421050][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1192.421050][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1192.421050][   T73]      netlink_rcv_skb+0x130/0x360
[ 1192.421050][   T73]      netlink_unicast+0x449/0x710
[ 1192.421050][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1192.421050][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1192.421050][   T73]      ___sys_sendmsg+0xee/0x170
[ 1192.421050][   T73]      __sys_sendmsg+0xcd/0x170
[ 1192.421050][   T73]      do_syscall_64+0xc6/0x1e0
[ 1192.421050][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1192.421050][   T73] 
[ 1192.423077][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1192.423077][   T73]      netdev_get_by_index+0x5e/0x80
[ 1192.423077][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1192.423077][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1192.423077][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1192.423077][   T73]      ipv6_add_addr+0x411/0x2000
[ 1192.423077][   T73]      inet6_addr_add+0x30e/0xa40
[ 1192.423077][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1192.423077][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1192.423077][   T73]      netlink_rcv_skb+0x130/0x360
[ 1192.423077][   T73]      netlink_unicast+0x449/0x710
[ 1192.423077][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1192.423077][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1192.423077][   T73]      ___sys_sendmsg+0xee/0x170
[ 1192.423077][   T73]      __sys_sendmsg+0xcd/0x170
[ 1192.423077][   T73]      do_syscall_64+0xc6/0x1e0
[ 1192.423077][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1192.423077][   T73] 
[ 1192.425119][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1192.425119][   T73]      netdev_get_by_index+0x5e/0x80
[ 1192.425119][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1192.425119][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1192.425119][   T73]      ip6_route_add+0x1c/0x140
[ 1192.425119][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1192.425119][   T73]      addrconf_add_dev+0xe2/0x170
[ 1192.425119][   T73]      inet6_addr_add+0x12f/0xa40
[ 1192.425119][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1192.425119][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1192.425119][   T73]      netlink_rcv_skb+0x130/0x360
[ 1192.425119][   T73]      netlink_unicast+0x449/0x710
[ 1192.425119][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1192.425119][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1192.425119][   T73]      ___sys_sendmsg+0xee/0x170
[ 1192.425119][   T73]      __sys_sendmsg+0xcd/0x170
[ 1192.425119][   T73]      do_syscall_64+0xc6/0x1e0
[ 1192.425119][   T73] 
[ 1192.427910][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1192.427910][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1192.427910][   T73]      ipv6_find_idev+0x102/0x170
[ 1192.427910][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1192.427910][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1192.427910][   T73]      netlink_rcv_skb+0x130/0x360
[ 1192.427910][   T73]      netlink_unicast+0x449/0x710
[ 1192.427910][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1192.427910][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1192.427910][   T73]      ___sys_sendmsg+0xee/0x170
[ 1192.427910][   T73]      __sys_sendmsg+0xcd/0x170
[ 1192.427910][   T73]      do_syscall_64+0xc6/0x1e0
[ 1192.427910][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1192.427910][   T73] 
[ 1192.430385][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1192.430385][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1192.430385][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1192.430385][   T73]      ipv6_find_idev+0x102/0x170
[ 1192.430385][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1192.430385][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1192.430385][   T73]      netlink_rcv_skb+0x130/0x360
[ 1192.430385][   T73]      netlink_unicast+0x449/0x710
[ 1192.430385][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1192.430385][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1192.430385][   T73]      ___sys_sendmsg+0xee/0x170
[ 1192.430385][   T73]      __sys_sendmsg+0xcd/0x170
[ 1192.430385][   T73]      do_syscall_64+0xc6/0x1e0
[ 1192.430385][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1192.430385][   T73] 
[ 1192.433032][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1192.433375][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1192.433375][   T73]      netdev_get_by_index+0x5e/0x80
[ 1192.433375][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1192.433375][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1192.433375][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1192.433375][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1192.433375][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1192.433375][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1192.433375][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1192.433375][   T73]      addrconf_dad_begin+0x310/0x670
[ 1192.433375][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1192.433375][   T73]      process_one_work+0x84d/0x18a0
[ 1192.433375][   T73]      worker_thread+0x587/0xd30
[ 1192.433375][   T73]      kthread+0x28a/0x350
[ 1192.433375][   T73]      ret_from_fork+0x31/0x70
[ 1192.433375][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1192.433375][   T73] 
[ 1192.435324][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1192.435324][   T73]      netdev_get_by_index+0x5e/0x80
[ 1192.435324][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1192.435324][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1192.435324][   T73]      ip6_route_add+0x1c/0x140
[ 1192.435324][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1192.435324][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1192.435324][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1192.435324][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1192.435324][   T73]      netlink_rcv_skb+0x130/0x360
[ 1192.435324][   T73]      netlink_unicast+0x449/0x710
[ 1192.435324][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1192.435324][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1192.435324][   T73]      ___sys_sendmsg+0xee/0x170
[ 1192.435324][   T73]      __sys_sendmsg+0xcd/0x170
[ 1192.435324][   T73]      do_syscall_64+0xc6/0x1e0
[ 1192.435324][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1192.435324][   T73] 
[ 1192.437374][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1192.437374][   T73]      netdev_get_by_index+0x5e/0x80
[ 1192.437374][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1192.437374][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1192.437374][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1192.437374][   T73]      ipv6_add_addr+0x411/0x2000
[ 1192.437374][   T73]      inet6_addr_add+0x30e/0xa40
[ 1192.437374][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1192.437374][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1192.437374][   T73]      netlink_rcv_skb+0x130/0x360
[ 1192.437374][   T73]      netlink_unicast+0x449/0x710
[ 1192.437374][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1192.437374][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1192.437374][   T73]      ___sys_sendmsg+0xee/0x170
[ 1192.437374][   T73]      __sys_sendmsg+0xcd/0x170
[ 1192.437374][   T73]      do_syscall_64+0xc6/0x1e0
[ 1192.437374][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1192.437374][   T73] 
[ 1192.439417][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1192.439417][   T73]      netdev_get_by_index+0x5e/0x80
[ 1192.439417][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1192.439417][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1192.439417][   T73]      ip6_route_add+0x1c/0x140
[ 1192.439417][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1192.439417][   T73]      addrconf_add_dev+0xe2/0x170
[ 1192.439417][   T73]      inet6_addr_add+0x12f/0xa40
[ 1192.439417][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1192.439417][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1192.439417][   T73]      netlink_rcv_skb+0x130/0x360
[ 1192.439417][   T73]      netlink_unicast+0x449/0x710
[ 1192.439417][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1192.439417][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1192.439417][   T73]      ___sys_sendmsg+0xee/0x170
[ 1192.439417][   T73]      __sys_sendmsg+0xcd/0x170
[ 1192.439417][   T73]      do_syscall_64+0xc6/0x1e0
[ 1192.439417][   T73] 
[ 1192.441607][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1192.441607][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1192.441607][   T73]      ipv6_find_idev+0x102/0x170
[ 1192.441607][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1192.441607][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1192.441607][   T73]      netlink_rcv_skb+0x130/0x360
[ 1192.441607][   T73]      netlink_unicast+0x449/0x710
[ 1192.441607][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1192.441607][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1192.441607][   T73]      ___sys_sendmsg+0xee/0x170
[ 1192.441607][   T73]      __sys_sendmsg+0xcd/0x170
[ 1192.441607][   T73]      do_syscall_64+0xc6/0x1e0
[ 1192.441607][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1192.441607][   T73] 
[ 1192.443543][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1192.443543][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1192.443543][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1192.443543][   T73]      ipv6_find_idev+0x102/0x170
[ 1192.443543][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1192.443543][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1192.443543][   T73]      netlink_rcv_skb+0x130/0x360
[ 1192.443543][   T73]      netlink_unicast+0x449/0x710
[ 1192.443543][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1192.443543][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1192.443543][   T73]      ___sys_sendmsg+0xee/0x170
[ 1192.443543][   T73]      __sys_sendmsg+0xcd/0x170
[ 1192.443543][   T73]      do_syscall_64+0xc6/0x1e0
[ 1192.443543][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1192.443543][   T73] 
[ 1192.445282][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1192.445564][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1192.445564][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1192.445564][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1192.445564][   T73]      fib6_nh_init+0xa22/0x1580
[ 1192.445564][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1192.445564][   T73]      ip6_route_add+0x1c/0x140
[ 1192.445564][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1192.445564][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1192.445564][   T73]      netlink_rcv_skb+0x130/0x360
[ 1192.445564][   T73]      netlink_unicast+0x449/0x710
[ 1192.445564][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1192.445564][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1192.445564][   T73]      ___sys_sendmsg+0xee/0x170
[ 1192.445564][   T73]      __sys_sendmsg+0xcd/0x170
[ 1192.445564][   T73]      do_syscall_64+0xc6/0x1e0
[ 1192.445564][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1192.445564][   T73] 
[ 1192.447669][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1192.447669][   T73]      dst_init+0x84/0x4a0
[ 1192.447669][   T73]      dst_alloc+0x97/0x150
[ 1192.447669][   T73]      ip6_dst_alloc+0x23/0x90
[ 1192.447669][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1192.447669][   T73]      ip6_pol_route+0x56f/0x840
[ 1192.447669][   T73]      fib6_rule_lookup+0x456/0x630
[ 1192.447669][   T73]      ip6_route_input+0x59c/0xa50
[ 1192.447669][   T73]      ipv6_rcv+0x397/0x810
[ 1192.447669][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1192.447669][   T73]      process_backlog+0x101/0x620
[ 1192.447669][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1192.447669][   T73]      net_rx_action+0x495/0xbe0
[ 1192.447669][   T73]      __do_softirq+0x1b5/0x7f6
[ 1192.447669][   T73] 
[ 1192.449604][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1192.449604][   T73]      netdev_get_by_index+0x5e/0x80
[ 1192.449604][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1192.449604][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1192.449604][   T73]      ip6_route_add+0x1c/0x140
[ 1192.449604][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1192.449604][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1192.449604][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1192.449604][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1192.449604][   T73]      netlink_rcv_skb+0x130/0x360
[ 1192.449604][   T73]      netlink_unicast+0x449/0x710
[ 1192.449604][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1192.449604][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1192.449604][   T73]      ___sys_sendmsg+0xee/0x170
[ 1192.449604][   T73]      __sys_sendmsg+0xcd/0x170
[ 1192.449604][   T73]      do_syscall_64+0xc6/0x1e0
[ 1192.449604][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1192.449604][   T73] 
[ 1192.451888][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1192.451888][   T73]      netdev_get_by_index+0x5e/0x80
[ 1192.451888][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1192.451888][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1192.451888][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1192.451888][   T73]      ipv6_add_addr+0x411/0x2000
[ 1192.451888][   T73]      inet6_addr_add+0x30e/0xa40
[ 1192.451888][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1192.451888][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1192.451888][   T73]      netlink_rcv_skb+0x130/0x360
[ 1192.451888][   T73]      netlink_unicast+0x449/0x710
[ 1192.451888][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1192.451888][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1192.451888][   T73]      ___sys_sendmsg+0xee/0x170
[ 1192.451888][   T73]      __sys_sendmsg+0xcd/0x170
[ 1192.451888][   T73]      do_syscall_64+0xc6/0x1e0
[ 1192.451888][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1192.451888][   T73] 
[ 1192.454198][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1192.454198][   T73]      netdev_get_by_index+0x5e/0x80
[ 1192.454198][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1192.454198][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1192.454198][   T73]      ip6_route_add+0x1c/0x140
[ 1192.454198][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1192.454198][   T73]      addrconf_add_dev+0xe2/0x170
[ 1192.454198][   T73]      inet6_addr_add+0x12f/0xa40
[ 1192.454198][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1192.454198][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1192.454198][   T73]      netlink_rcv_skb+0x130/0x360
[ 1192.454198][   T73]      netlink_unicast+0x449/0x710
[ 1192.454198][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1192.454198][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1192.454198][   T73]      ___sys_sendmsg+0xee/0x170
[ 1192.454198][   T73]      __sys_sendmsg+0xcd/0x170
[ 1192.454198][   T73]      do_syscall_64+0xc6/0x1e0
[ 1192.454198][   T73] 
[ 1192.456381][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1192.456381][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1192.456381][   T73]      ipv6_find_idev+0x102/0x170
[ 1192.456381][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1192.456381][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1192.456381][   T73]      netlink_rcv_skb+0x130/0x360
[ 1192.456381][   T73]      netlink_unicast+0x449/0x710
[ 1192.456381][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1192.456381][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1192.456381][   T73]      ___sys_sendmsg+0xee/0x170
[ 1192.456381][   T73]      __sys_sendmsg+0xcd/0x170
[ 1192.456381][   T73]      do_syscall_64+0xc6/0x1e0
[ 1192.456381][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1192.456381][   T73] 
[ 1192.458175][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1192.458175][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1192.458175][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1192.458175][   T73]      ipv6_find_idev+0x102/0x170
[ 1192.458175][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1192.458175][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1192.458175][   T73]      netlink_rcv_skb+0x130/0x360
[ 1192.458175][   T73]      netlink_unicast+0x449/0x710
[ 1192.458175][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1192.458175][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1192.458175][   T73]      ___sys_sendmsg+0xee/0x170
[ 1192.458175][   T73]      __sys_sendmsg+0xcd/0x170
[ 1192.458175][   T73]      do_syscall_64+0xc6/0x1e0
[ 1192.458175][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1192.458175][   T73] 
[ 1192.460128][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1192.460405][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1192.460405][   T73]      netdev_get_by_index+0x5e/0x80
[ 1192.460405][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1192.460405][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1192.460405][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1192.460405][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1192.460405][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1192.460405][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1192.460405][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1192.460405][   T73]      addrconf_dad_begin+0x310/0x670
[ 1192.460405][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1192.460405][   T73]      process_one_work+0x84d/0x18a0
[ 1192.460405][   T73]      worker_thread+0x587/0xd30
[ 1192.460405][   T73]      kthread+0x28a/0x350
[ 1192.460405][   T73]      ret_from_fork+0x31/0x70
[ 1192.460405][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1192.460405][   T73] 
[ 1192.463089][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1192.463089][   T73]      netdev_get_by_index+0x5e/0x80
[ 1192.463089][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1192.463089][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1192.463089][   T73]      ip6_route_add+0x1c/0x140
[ 1192.463089][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1192.463089][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1192.463089][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1192.463089][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1192.463089][   T73]      netlink_rcv_skb+0x130/0x360
[ 1192.463089][   T73]      netlink_unicast+0x449/0x710
[ 1192.463089][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1192.463089][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1192.463089][   T73]      ___sys_sendmsg+0xee/0x170
[ 1192.463089][   T73]      __sys_sendmsg+0xcd/0x170
[ 1192.463089][   T73]      do_syscall_64+0xc6/0x1e0
[ 1192.463089][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1192.463089][   T73] 
[ 1192.466542][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1192.466542][   T73]      netdev_get_by_index+0x5e/0x80
[ 1192.466542][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1192.466542][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1192.466542][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1192.466542][   T73]      ipv6_add_addr+0x411/0x2000
[ 1192.466542][   T73]      inet6_addr_add+0x30e/0xa40
[ 1192.466542][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1192.466542][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1192.466542][   T73]      netlink_rcv_skb+0x130/0x360
[ 1192.466542][   T73]      netlink_unicast+0x449/0x710
[ 1192.466542][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1192.466542][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1192.466542][   T73]      ___sys_sendmsg+0xee/0x170
[ 1192.466542][   T73]      __sys_sendmsg+0xcd/0x170
[ 1192.466542][   T73]      do_syscall_64+0xc6/0x1e0
[ 1192.466542][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1192.466542][   T73] 
[ 1192.468768][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1192.468768][   T73]      netdev_get_by_index+0x5e/0x80
[ 1192.468768][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1192.468768][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1192.468768][   T73]      ip6_route_add+0x1c/0x140
[ 1192.468768][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1192.468768][   T73]      addrconf_add_dev+0xe2/0x170
[ 1192.468768][   T73]      inet6_addr_add+0x12f/0xa40
[ 1192.468768][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1192.468768][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1192.468768][   T73]      netlink_rcv_skb+0x130/0x360
[ 1192.468768][   T73]      netlink_unicast+0x449/0x710
[ 1192.468768][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1192.468768][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1192.468768][   T73]      ___sys_sendmsg+0xee/0x170
[ 1192.468768][   T73]      __sys_sendmsg+0xcd/0x170
[ 1192.468768][   T73]      do_syscall_64+0xc6/0x1e0
[ 1192.468768][   T73] 
[ 1192.472171][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1192.472171][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1192.472171][   T73]      ipv6_find_idev+0x102/0x170
[ 1192.472171][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1192.472171][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1192.472171][   T73]      netlink_rcv_skb+0x130/0x360
[ 1192.472171][   T73]      netlink_unicast+0x449/0x710
[ 1192.472171][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1192.472171][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1192.472171][   T73]      ___sys_sendmsg+0xee/0x170
[ 1192.472171][   T73]      __sys_sendmsg+0xcd/0x170
[ 1192.472171][   T73]      do_syscall_64+0xc6/0x1e0
[ 1192.472171][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1192.472171][   T73] 
[ 1192.474928][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1192.474928][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1192.474928][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1192.474928][   T73]      ipv6_find_idev+0x102/0x170
[ 1192.474928][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1192.474928][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1192.474928][   T73]      netlink_rcv_skb+0x130/0x360
[ 1192.474928][   T73]      netlink_unicast+0x449/0x710
[ 1192.474928][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1192.474928][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1192.474928][   T73]      ___sys_sendmsg+0xee/0x170
[ 1192.474928][   T73]      __sys_sendmsg+0xcd/0x170
[ 1192.474928][   T73]      do_syscall_64+0xc6/0x1e0
[ 1192.474928][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1192.474928][   T73] 
[ 1202.727782][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1202.728211][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1202.728211][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1202.728211][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1202.728211][   T73]      fib6_nh_init+0xa22/0x1580
[ 1202.728211][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1202.728211][   T73]      ip6_route_add+0x1c/0x140
[ 1202.728211][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1202.728211][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1202.728211][   T73]      netlink_rcv_skb+0x130/0x360
[ 1202.728211][   T73]      netlink_unicast+0x449/0x710
[ 1202.728211][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1202.728211][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1202.728211][   T73]      ___sys_sendmsg+0xee/0x170
[ 1202.728211][   T73]      __sys_sendmsg+0xcd/0x170
[ 1202.728211][   T73]      do_syscall_64+0xc6/0x1e0
[ 1202.728211][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1202.728211][   T73] 
[ 1202.730122][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1202.730122][   T73]      dst_init+0x84/0x4a0
[ 1202.730122][   T73]      dst_alloc+0x97/0x150
[ 1202.730122][   T73]      ip6_dst_alloc+0x23/0x90
[ 1202.730122][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1202.730122][   T73]      ip6_pol_route+0x56f/0x840
[ 1202.730122][   T73]      fib6_rule_lookup+0x456/0x630
[ 1202.730122][   T73]      ip6_route_input+0x59c/0xa50
[ 1202.730122][   T73]      ipv6_rcv+0x397/0x810
[ 1202.730122][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1202.730122][   T73]      process_backlog+0x101/0x620
[ 1202.730122][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1202.730122][   T73]      net_rx_action+0x495/0xbe0
[ 1202.730122][   T73]      __do_softirq+0x1b5/0x7f6
[ 1202.730122][   T73] 
[ 1202.731764][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1202.731764][   T73]      netdev_get_by_index+0x5e/0x80
[ 1202.731764][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1202.731764][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1202.731764][   T73]      ip6_route_add+0x1c/0x140
[ 1202.731764][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1202.731764][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1202.731764][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1202.731764][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1202.731764][   T73]      netlink_rcv_skb+0x130/0x360
[ 1202.731764][   T73]      netlink_unicast+0x449/0x710
[ 1202.731764][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1202.731764][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1202.731764][   T73]      ___sys_sendmsg+0xee/0x170
[ 1202.731764][   T73]      __sys_sendmsg+0xcd/0x170
[ 1202.731764][   T73]      do_syscall_64+0xc6/0x1e0
[ 1202.731764][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1202.731764][   T73] 
[ 1202.733753][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1202.733753][   T73]      netdev_get_by_index+0x5e/0x80
[ 1202.733753][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1202.733753][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1202.733753][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1202.733753][   T73]      ipv6_add_addr+0x411/0x2000
[ 1202.733753][   T73]      inet6_addr_add+0x30e/0xa40
[ 1202.733753][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1202.733753][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1202.733753][   T73]      netlink_rcv_skb+0x130/0x360
[ 1202.733753][   T73]      netlink_unicast+0x449/0x710
[ 1202.733753][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1202.733753][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1202.733753][   T73]      ___sys_sendmsg+0xee/0x170
[ 1202.733753][   T73]      __sys_sendmsg+0xcd/0x170
[ 1202.733753][   T73]      do_syscall_64+0xc6/0x1e0
[ 1202.733753][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1202.733753][   T73] 
[ 1202.735742][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1202.735742][   T73]      netdev_get_by_index+0x5e/0x80
[ 1202.735742][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1202.735742][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1202.735742][   T73]      ip6_route_add+0x1c/0x140
[ 1202.735742][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1202.735742][   T73]      addrconf_add_dev+0xe2/0x170
[ 1202.735742][   T73]      inet6_addr_add+0x12f/0xa40
[ 1202.735742][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1202.735742][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1202.735742][   T73]      netlink_rcv_skb+0x130/0x360
[ 1202.735742][   T73]      netlink_unicast+0x449/0x710
[ 1202.735742][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1202.735742][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1202.735742][   T73]      ___sys_sendmsg+0xee/0x170
[ 1202.735742][   T73]      __sys_sendmsg+0xcd/0x170
[ 1202.735742][   T73]      do_syscall_64+0xc6/0x1e0
[ 1202.735742][   T73] 
[ 1202.737696][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1202.737696][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1202.737696][   T73]      ipv6_find_idev+0x102/0x170
[ 1202.737696][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1202.737696][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1202.737696][   T73]      netlink_rcv_skb+0x130/0x360
[ 1202.737696][   T73]      netlink_unicast+0x449/0x710
[ 1202.737696][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1202.737696][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1202.737696][   T73]      ___sys_sendmsg+0xee/0x170
[ 1202.737696][   T73]      __sys_sendmsg+0xcd/0x170
[ 1202.737696][   T73]      do_syscall_64+0xc6/0x1e0
[ 1202.737696][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1202.737696][   T73] 
[ 1202.739237][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1202.739237][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1202.739237][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1202.739237][   T73]      ipv6_find_idev+0x102/0x170
[ 1202.739237][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1202.739237][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1202.739237][   T73]      netlink_rcv_skb+0x130/0x360
[ 1202.739237][   T73]      netlink_unicast+0x449/0x710
[ 1202.739237][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1202.739237][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1202.739237][   T73]      ___sys_sendmsg+0xee/0x170
[ 1202.739237][   T73]      __sys_sendmsg+0xcd/0x170
[ 1202.739237][   T73]      do_syscall_64+0xc6/0x1e0
[ 1202.739237][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1202.739237][   T73] 
[ 1202.740932][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1202.741208][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1202.741208][   T73]      netdev_get_by_index+0x5e/0x80
[ 1202.741208][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1202.741208][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1202.741208][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1202.741208][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1202.741208][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1202.741208][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1202.741208][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1202.741208][   T73]      addrconf_dad_begin+0x310/0x670
[ 1202.741208][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1202.741208][   T73]      process_one_work+0x84d/0x18a0
[ 1202.741208][   T73]      worker_thread+0x587/0xd30
[ 1202.741208][   T73]      kthread+0x28a/0x350
[ 1202.741208][   T73]      ret_from_fork+0x31/0x70
[ 1202.741208][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1202.741208][   T73] 
[ 1202.743104][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1202.743104][   T73]      netdev_get_by_index+0x5e/0x80
[ 1202.743104][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1202.743104][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1202.743104][   T73]      ip6_route_add+0x1c/0x140
[ 1202.743104][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1202.743104][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1202.743104][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1202.743104][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1202.743104][   T73]      netlink_rcv_skb+0x130/0x360
[ 1202.743104][   T73]      netlink_unicast+0x449/0x710
[ 1202.743104][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1202.743104][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1202.743104][   T73]      ___sys_sendmsg+0xee/0x170
[ 1202.743104][   T73]      __sys_sendmsg+0xcd/0x170
[ 1202.743104][   T73]      do_syscall_64+0xc6/0x1e0
[ 1202.743104][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1202.743104][   T73] 
[ 1202.745100][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1202.745100][   T73]      netdev_get_by_index+0x5e/0x80
[ 1202.745100][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1202.745100][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1202.745100][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1202.745100][   T73]      ipv6_add_addr+0x411/0x2000
[ 1202.745100][   T73]      inet6_addr_add+0x30e/0xa40
[ 1202.745100][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1202.745100][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1202.745100][   T73]      netlink_rcv_skb+0x130/0x360
[ 1202.745100][   T73]      netlink_unicast+0x449/0x710
[ 1202.745100][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1202.745100][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1202.745100][   T73]      ___sys_sendmsg+0xee/0x170
[ 1202.745100][   T73]      __sys_sendmsg+0xcd/0x170
[ 1202.745100][   T73]      do_syscall_64+0xc6/0x1e0
[ 1202.745100][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1202.745100][   T73] 
[ 1202.747101][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1202.747101][   T73]      netdev_get_by_index+0x5e/0x80
[ 1202.747101][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1202.747101][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1202.747101][   T73]      ip6_route_add+0x1c/0x140
[ 1202.747101][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1202.747101][   T73]      addrconf_add_dev+0xe2/0x170
[ 1202.747101][   T73]      inet6_addr_add+0x12f/0xa40
[ 1202.747101][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1202.747101][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1202.747101][   T73]      netlink_rcv_skb+0x130/0x360
[ 1202.747101][   T73]      netlink_unicast+0x449/0x710
[ 1202.747101][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1202.747101][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1202.747101][   T73]      ___sys_sendmsg+0xee/0x170
[ 1202.747101][   T73]      __sys_sendmsg+0xcd/0x170
[ 1202.747101][   T73]      do_syscall_64+0xc6/0x1e0
[ 1202.747101][   T73] 
[ 1202.749050][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1202.749050][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1202.749050][   T73]      ipv6_find_idev+0x102/0x170
[ 1202.749050][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1202.749050][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1202.749050][   T73]      netlink_rcv_skb+0x130/0x360
[ 1202.749050][   T73]      netlink_unicast+0x449/0x710
[ 1202.749050][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1202.749050][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1202.749050][   T73]      ___sys_sendmsg+0xee/0x170
[ 1202.749050][   T73]      __sys_sendmsg+0xcd/0x170
[ 1202.749050][   T73]      do_syscall_64+0xc6/0x1e0
[ 1202.749050][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1202.749050][   T73] 
[ 1202.750986][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1202.750986][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1202.750986][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1202.750986][   T73]      ipv6_find_idev+0x102/0x170
[ 1202.750986][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1202.750986][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1202.750986][   T73]      netlink_rcv_skb+0x130/0x360
[ 1202.750986][   T73]      netlink_unicast+0x449/0x710
[ 1202.750986][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1202.750986][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1202.750986][   T73]      ___sys_sendmsg+0xee/0x170
[ 1202.750986][   T73]      __sys_sendmsg+0xcd/0x170
[ 1202.750986][   T73]      do_syscall_64+0xc6/0x1e0
[ 1202.750986][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1202.750986][   T73] 
[ 1202.752671][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1202.752938][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1202.752938][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1202.752938][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1202.752938][   T73]      fib6_nh_init+0xa22/0x1580
[ 1202.752938][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1202.752938][   T73]      ip6_route_add+0x1c/0x140
[ 1202.752938][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1202.752938][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1202.752938][   T73]      netlink_rcv_skb+0x130/0x360
[ 1202.752938][   T73]      netlink_unicast+0x449/0x710
[ 1202.752938][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1202.752938][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1202.752938][   T73]      ___sys_sendmsg+0xee/0x170
[ 1202.752938][   T73]      __sys_sendmsg+0xcd/0x170
[ 1202.752938][   T73]      do_syscall_64+0xc6/0x1e0
[ 1202.752938][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1202.752938][   T73] 
[ 1202.754990][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1202.754990][   T73]      dst_init+0x84/0x4a0
[ 1202.754990][   T73]      dst_alloc+0x97/0x150
[ 1202.754990][   T73]      ip6_dst_alloc+0x23/0x90
[ 1202.754990][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1202.754990][   T73]      ip6_pol_route+0x56f/0x840
[ 1202.754990][   T73]      fib6_rule_lookup+0x456/0x630
[ 1202.754990][   T73]      ip6_route_input+0x59c/0xa50
[ 1202.754990][   T73]      ipv6_rcv+0x397/0x810
[ 1202.754990][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1202.754990][   T73]      process_backlog+0x101/0x620
[ 1202.754990][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1202.754990][   T73]      net_rx_action+0x495/0xbe0
[ 1202.754990][   T73]      __do_softirq+0x1b5/0x7f6
[ 1202.754990][   T73] 
[ 1202.756789][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1202.756789][   T73]      netdev_get_by_index+0x5e/0x80
[ 1202.756789][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1202.756789][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1202.756789][   T73]      ip6_route_add+0x1c/0x140
[ 1202.756789][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1202.756789][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1202.756789][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1202.756789][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1202.756789][   T73]      netlink_rcv_skb+0x130/0x360
[ 1202.756789][   T73]      netlink_unicast+0x449/0x710
[ 1202.756789][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1202.756789][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1202.756789][   T73]      ___sys_sendmsg+0xee/0x170
[ 1202.756789][   T73]      __sys_sendmsg+0xcd/0x170
[ 1202.756789][   T73]      do_syscall_64+0xc6/0x1e0
[ 1202.756789][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1202.756789][   T73] 
[ 1202.759026][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1202.759026][   T73]      netdev_get_by_index+0x5e/0x80
[ 1202.759026][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1202.759026][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1202.759026][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1202.759026][   T73]      ipv6_add_addr+0x411/0x2000
[ 1202.759026][   T73]      inet6_addr_add+0x30e/0xa40
[ 1202.759026][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1202.759026][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1202.759026][   T73]      netlink_rcv_skb+0x130/0x360
[ 1202.759026][   T73]      netlink_unicast+0x449/0x710
[ 1202.759026][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1202.759026][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1202.759026][   T73]      ___sys_sendmsg+0xee/0x170
[ 1202.759026][   T73]      __sys_sendmsg+0xcd/0x170
[ 1202.759026][   T73]      do_syscall_64+0xc6/0x1e0
[ 1202.759026][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1202.759026][   T73] 
[ 1202.761261][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1202.761261][   T73]      netdev_get_by_index+0x5e/0x80
[ 1202.761261][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1202.761261][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1202.761261][   T73]      ip6_route_add+0x1c/0x140
[ 1202.761261][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1202.761261][   T73]      addrconf_add_dev+0xe2/0x170
[ 1202.761261][   T73]      inet6_addr_add+0x12f/0xa40
[ 1202.761261][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1202.761261][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1202.761261][   T73]      netlink_rcv_skb+0x130/0x360
[ 1202.761261][   T73]      netlink_unicast+0x449/0x710
[ 1202.761261][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1202.761261][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1202.761261][   T73]      ___sys_sendmsg+0xee/0x170
[ 1202.761261][   T73]      __sys_sendmsg+0xcd/0x170
[ 1202.761261][   T73]      do_syscall_64+0xc6/0x1e0
[ 1202.761261][   T73] 
[ 1202.763446][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1202.763446][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1202.763446][   T73]      ipv6_find_idev+0x102/0x170
[ 1202.763446][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1202.763446][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1202.763446][   T73]      netlink_rcv_skb+0x130/0x360
[ 1202.763446][   T73]      netlink_unicast+0x449/0x710
[ 1202.763446][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1202.763446][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1202.763446][   T73]      ___sys_sendmsg+0xee/0x170
[ 1202.763446][   T73]      __sys_sendmsg+0xcd/0x170
[ 1202.763446][   T73]      do_syscall_64+0xc6/0x1e0
[ 1202.763446][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1202.763446][   T73] 
[ 1202.765159][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1202.765159][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1202.765159][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1202.765159][   T73]      ipv6_find_idev+0x102/0x170
[ 1202.765159][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1202.765159][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1202.765159][   T73]      netlink_rcv_skb+0x130/0x360
[ 1202.765159][   T73]      netlink_unicast+0x449/0x710
[ 1202.765159][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1202.765159][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1202.765159][   T73]      ___sys_sendmsg+0xee/0x170
[ 1202.765159][   T73]      __sys_sendmsg+0xcd/0x170
[ 1202.765159][   T73]      do_syscall_64+0xc6/0x1e0
[ 1202.765159][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1202.765159][   T73] 
[ 1202.767009][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1202.767340][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1202.767340][   T73]      netdev_get_by_index+0x5e/0x80
[ 1202.767340][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1202.767340][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1202.767340][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1202.767340][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1202.767340][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1202.767340][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1202.767340][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1202.767340][   T73]      addrconf_dad_begin+0x310/0x670
[ 1202.767340][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1202.767340][   T73]      process_one_work+0x84d/0x18a0
[ 1202.767340][   T73]      worker_thread+0x587/0xd30
[ 1202.767340][   T73]      kthread+0x28a/0x350
[ 1202.767340][   T73]      ret_from_fork+0x31/0x70
[ 1202.767340][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1202.767340][   T73] 
[ 1202.769423][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1202.769423][   T73]      netdev_get_by_index+0x5e/0x80
[ 1202.769423][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1202.769423][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1202.769423][   T73]      ip6_route_add+0x1c/0x140
[ 1202.769423][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1202.769423][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1202.769423][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1202.769423][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1202.769423][   T73]      netlink_rcv_skb+0x130/0x360
[ 1202.769423][   T73]      netlink_unicast+0x449/0x710
[ 1202.769423][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1202.769423][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1202.769423][   T73]      ___sys_sendmsg+0xee/0x170
[ 1202.769423][   T73]      __sys_sendmsg+0xcd/0x170
[ 1202.769423][   T73]      do_syscall_64+0xc6/0x1e0
[ 1202.769423][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1202.769423][   T73] 
[ 1202.771717][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1202.771717][   T73]      netdev_get_by_index+0x5e/0x80
[ 1202.771717][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1202.771717][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1202.771717][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1202.771717][   T73]      ipv6_add_addr+0x411/0x2000
[ 1202.771717][   T73]      inet6_addr_add+0x30e/0xa40
[ 1202.771717][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1202.771717][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1202.771717][   T73]      netlink_rcv_skb+0x130/0x360
[ 1202.771717][   T73]      netlink_unicast+0x449/0x710
[ 1202.771717][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1202.771717][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1202.771717][   T73]      ___sys_sendmsg+0xee/0x170
[ 1202.771717][   T73]      __sys_sendmsg+0xcd/0x170
[ 1202.771717][   T73]      do_syscall_64+0xc6/0x1e0
[ 1202.771717][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1202.771717][   T73] 
[ 1202.773943][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1202.773943][   T73]      netdev_get_by_index+0x5e/0x80
[ 1202.773943][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1202.773943][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1202.773943][   T73]      ip6_route_add+0x1c/0x140
[ 1202.773943][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1202.773943][   T73]      addrconf_add_dev+0xe2/0x170
[ 1202.773943][   T73]      inet6_addr_add+0x12f/0xa40
[ 1202.773943][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1202.773943][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1202.773943][   T73]      netlink_rcv_skb+0x130/0x360
[ 1202.773943][   T73]      netlink_unicast+0x449/0x710
[ 1202.773943][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1202.773943][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1202.773943][   T73]      ___sys_sendmsg+0xee/0x170
[ 1202.773943][   T73]      __sys_sendmsg+0xcd/0x170
[ 1202.773943][   T73]      do_syscall_64+0xc6/0x1e0
[ 1202.773943][   T73] 
[ 1202.776148][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1202.776148][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1202.776148][   T73]      ipv6_find_idev+0x102/0x170
[ 1202.776148][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1202.776148][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1202.776148][   T73]      netlink_rcv_skb+0x130/0x360
[ 1202.776148][   T73]      netlink_unicast+0x449/0x710
[ 1202.776148][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1202.776148][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1202.776148][   T73]      ___sys_sendmsg+0xee/0x170
[ 1202.776148][   T73]      __sys_sendmsg+0xcd/0x170
[ 1202.776148][   T73]      do_syscall_64+0xc6/0x1e0
[ 1202.776148][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1202.776148][   T73] 
[ 1202.777856][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1202.777856][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1202.777856][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1202.777856][   T73]      ipv6_find_idev+0x102/0x170
[ 1202.777856][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1202.777856][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1202.777856][   T73]      netlink_rcv_skb+0x130/0x360
[ 1202.777856][   T73]      netlink_unicast+0x449/0x710
[ 1202.777856][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1202.777856][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1202.777856][   T73]      ___sys_sendmsg+0xee/0x170
[ 1202.777856][   T73]      __sys_sendmsg+0xcd/0x170
[ 1202.777856][   T73]      do_syscall_64+0xc6/0x1e0
[ 1202.777856][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1202.777856][   T73] 
[ 1212.871702][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1212.872134][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1212.872134][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1212.872134][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1212.872134][   T73]      fib6_nh_init+0xa22/0x1580
[ 1212.872134][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1212.872134][   T73]      ip6_route_add+0x1c/0x140
[ 1212.872134][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1212.872134][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1212.872134][   T73]      netlink_rcv_skb+0x130/0x360
[ 1212.872134][   T73]      netlink_unicast+0x449/0x710
[ 1212.872134][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1212.872134][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1212.872134][   T73]      ___sys_sendmsg+0xee/0x170
[ 1212.872134][   T73]      __sys_sendmsg+0xcd/0x170
[ 1212.872134][   T73]      do_syscall_64+0xc6/0x1e0
[ 1212.872134][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1212.872134][   T73] 
[ 1212.874135][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1212.874135][   T73]      dst_init+0x84/0x4a0
[ 1212.874135][   T73]      dst_alloc+0x97/0x150
[ 1212.874135][   T73]      ip6_dst_alloc+0x23/0x90
[ 1212.874135][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1212.874135][   T73]      ip6_pol_route+0x56f/0x840
[ 1212.874135][   T73]      fib6_rule_lookup+0x456/0x630
[ 1212.874135][   T73]      ip6_route_input+0x59c/0xa50
[ 1212.874135][   T73]      ipv6_rcv+0x397/0x810
[ 1212.874135][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1212.874135][   T73]      process_backlog+0x101/0x620
[ 1212.874135][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1212.874135][   T73]      net_rx_action+0x495/0xbe0
[ 1212.874135][   T73]      __do_softirq+0x1b5/0x7f6
[ 1212.874135][   T73] 
[ 1212.875778][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1212.875778][   T73]      netdev_get_by_index+0x5e/0x80
[ 1212.875778][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1212.875778][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1212.875778][   T73]      ip6_route_add+0x1c/0x140
[ 1212.875778][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1212.875778][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1212.875778][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1212.875778][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1212.875778][   T73]      netlink_rcv_skb+0x130/0x360
[ 1212.875778][   T73]      netlink_unicast+0x449/0x710
[ 1212.875778][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1212.875778][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1212.875778][   T73]      ___sys_sendmsg+0xee/0x170
[ 1212.875778][   T73]      __sys_sendmsg+0xcd/0x170
[ 1212.875778][   T73]      do_syscall_64+0xc6/0x1e0
[ 1212.875778][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1212.875778][   T73] 
[ 1212.877781][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1212.877781][   T73]      netdev_get_by_index+0x5e/0x80
[ 1212.877781][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1212.877781][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1212.877781][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1212.877781][   T73]      ipv6_add_addr+0x411/0x2000
[ 1212.877781][   T73]      inet6_addr_add+0x30e/0xa40
[ 1212.877781][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1212.877781][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1212.877781][   T73]      netlink_rcv_skb+0x130/0x360
[ 1212.877781][   T73]      netlink_unicast+0x449/0x710
[ 1212.877781][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1212.877781][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1212.877781][   T73]      ___sys_sendmsg+0xee/0x170
[ 1212.877781][   T73]      __sys_sendmsg+0xcd/0x170
[ 1212.877781][   T73]      do_syscall_64+0xc6/0x1e0
[ 1212.877781][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1212.877781][   T73] 
[ 1212.879778][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1212.879778][   T73]      netdev_get_by_index+0x5e/0x80
[ 1212.879778][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1212.879778][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1212.879778][   T73]      ip6_route_add+0x1c/0x140
[ 1212.879778][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1212.879778][   T73]      addrconf_add_dev+0xe2/0x170
[ 1212.879778][   T73]      inet6_addr_add+0x12f/0xa40
[ 1212.879778][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1212.879778][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1212.879778][   T73]      netlink_rcv_skb+0x130/0x360
[ 1212.879778][   T73]      netlink_unicast+0x449/0x710
[ 1212.879778][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1212.879778][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1212.879778][   T73]      ___sys_sendmsg+0xee/0x170
[ 1212.879778][   T73]      __sys_sendmsg+0xcd/0x170
[ 1212.879778][   T73]      do_syscall_64+0xc6/0x1e0
[ 1212.879778][   T73] 
[ 1212.881734][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1212.881734][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1212.881734][   T73]      ipv6_find_idev+0x102/0x170
[ 1212.881734][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1212.881734][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1212.881734][   T73]      netlink_rcv_skb+0x130/0x360
[ 1212.881734][   T73]      netlink_unicast+0x449/0x710
[ 1212.881734][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1212.881734][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1212.881734][   T73]      ___sys_sendmsg+0xee/0x170
[ 1212.881734][   T73]      __sys_sendmsg+0xcd/0x170
[ 1212.881734][   T73]      do_syscall_64+0xc6/0x1e0
[ 1212.881734][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1212.881734][   T73] 
[ 1212.883266][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1212.883266][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1212.883266][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1212.883266][   T73]      ipv6_find_idev+0x102/0x170
[ 1212.883266][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1212.883266][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1212.883266][   T73]      netlink_rcv_skb+0x130/0x360
[ 1212.883266][   T73]      netlink_unicast+0x449/0x710
[ 1212.883266][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1212.883266][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1212.883266][   T73]      ___sys_sendmsg+0xee/0x170
[ 1212.883266][   T73]      __sys_sendmsg+0xcd/0x170
[ 1212.883266][   T73]      do_syscall_64+0xc6/0x1e0
[ 1212.883266][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1212.883266][   T73] 
[ 1212.884947][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1212.885226][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1212.885226][   T73]      netdev_get_by_index+0x5e/0x80
[ 1212.885226][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1212.885226][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1212.885226][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1212.885226][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1212.885226][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1212.885226][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1212.885226][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1212.885226][   T73]      addrconf_dad_begin+0x310/0x670
[ 1212.885226][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1212.885226][   T73]      process_one_work+0x84d/0x18a0
[ 1212.885226][   T73]      worker_thread+0x587/0xd30
[ 1212.885226][   T73]      kthread+0x28a/0x350
[ 1212.885226][   T73]      ret_from_fork+0x31/0x70
[ 1212.885226][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1212.885226][   T73] 
[ 1212.887218][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1212.887218][   T73]      netdev_get_by_index+0x5e/0x80
[ 1212.887218][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1212.887218][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1212.887218][   T73]      ip6_route_add+0x1c/0x140
[ 1212.887218][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1212.887218][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1212.887218][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1212.887218][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1212.887218][   T73]      netlink_rcv_skb+0x130/0x360
[ 1212.887218][   T73]      netlink_unicast+0x449/0x710
[ 1212.887218][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1212.887218][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1212.887218][   T73]      ___sys_sendmsg+0xee/0x170
[ 1212.887218][   T73]      __sys_sendmsg+0xcd/0x170
[ 1212.887218][   T73]      do_syscall_64+0xc6/0x1e0
[ 1212.887218][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1212.887218][   T73] 
[ 1212.889361][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1212.889361][   T73]      netdev_get_by_index+0x5e/0x80
[ 1212.889361][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1212.889361][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1212.889361][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1212.889361][   T73]      ipv6_add_addr+0x411/0x2000
[ 1212.889361][   T73]      inet6_addr_add+0x30e/0xa40
[ 1212.889361][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1212.889361][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1212.889361][   T73]      netlink_rcv_skb+0x130/0x360
[ 1212.889361][   T73]      netlink_unicast+0x449/0x710
[ 1212.889361][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1212.889361][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1212.889361][   T73]      ___sys_sendmsg+0xee/0x170
[ 1212.889361][   T73]      __sys_sendmsg+0xcd/0x170
[ 1212.889361][   T73]      do_syscall_64+0xc6/0x1e0
[ 1212.889361][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1212.889361][   T73] 
[ 1212.891486][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1212.891486][   T73]      netdev_get_by_index+0x5e/0x80
[ 1212.891486][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1212.891486][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1212.891486][   T73]      ip6_route_add+0x1c/0x140
[ 1212.891486][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1212.891486][   T73]      addrconf_add_dev+0xe2/0x170
[ 1212.891486][   T73]      inet6_addr_add+0x12f/0xa40
[ 1212.891486][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1212.891486][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1212.891486][   T73]      netlink_rcv_skb+0x130/0x360
[ 1212.891486][   T73]      netlink_unicast+0x449/0x710
[ 1212.891486][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1212.891486][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1212.891486][   T73]      ___sys_sendmsg+0xee/0x170
[ 1212.891486][   T73]      __sys_sendmsg+0xcd/0x170
[ 1212.891486][   T73]      do_syscall_64+0xc6/0x1e0
[ 1212.891486][   T73] 
[ 1212.893556][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1212.893556][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1212.893556][   T73]      ipv6_find_idev+0x102/0x170
[ 1212.893556][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1212.893556][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1212.893556][   T73]      netlink_rcv_skb+0x130/0x360
[ 1212.893556][   T73]      netlink_unicast+0x449/0x710
[ 1212.893556][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1212.893556][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1212.893556][   T73]      ___sys_sendmsg+0xee/0x170
[ 1212.893556][   T73]      __sys_sendmsg+0xcd/0x170
[ 1212.893556][   T73]      do_syscall_64+0xc6/0x1e0
[ 1212.893556][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1212.893556][   T73] 
[ 1212.895173][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1212.895173][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1212.895173][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1212.895173][   T73]      ipv6_find_idev+0x102/0x170
[ 1212.895173][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1212.895173][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1212.895173][   T73]      netlink_rcv_skb+0x130/0x360
[ 1212.895173][   T73]      netlink_unicast+0x449/0x710
[ 1212.895173][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1212.895173][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1212.895173][   T73]      ___sys_sendmsg+0xee/0x170
[ 1212.895173][   T73]      __sys_sendmsg+0xcd/0x170
[ 1212.895173][   T73]      do_syscall_64+0xc6/0x1e0
[ 1212.895173][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1212.895173][   T73] 
[ 1212.896927][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1212.897216][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1212.897216][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1212.897216][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1212.897216][   T73]      fib6_nh_init+0xa22/0x1580
[ 1212.897216][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1212.897216][   T73]      ip6_route_add+0x1c/0x140
[ 1212.897216][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1212.897216][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1212.897216][   T73]      netlink_rcv_skb+0x130/0x360
[ 1212.897216][   T73]      netlink_unicast+0x449/0x710
[ 1212.897216][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1212.897216][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1212.897216][   T73]      ___sys_sendmsg+0xee/0x170
[ 1212.897216][   T73]      __sys_sendmsg+0xcd/0x170
[ 1212.897216][   T73]      do_syscall_64+0xc6/0x1e0
[ 1212.897216][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1212.897216][   T73] 
[ 1212.899434][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1212.899434][   T73]      dst_init+0x84/0x4a0
[ 1212.899434][   T73]      dst_alloc+0x97/0x150
[ 1212.899434][   T73]      ip6_dst_alloc+0x23/0x90
[ 1212.899434][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1212.899434][   T73]      ip6_pol_route+0x56f/0x840
[ 1212.899434][   T73]      fib6_rule_lookup+0x456/0x630
[ 1212.899434][   T73]      ip6_route_input+0x59c/0xa50
[ 1212.899434][   T73]      ipv6_rcv+0x397/0x810
[ 1212.899434][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1212.899434][   T73]      process_backlog+0x101/0x620
[ 1212.899434][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1212.899434][   T73]      net_rx_action+0x495/0xbe0
[ 1212.899434][   T73]      __do_softirq+0x1b5/0x7f6
[ 1212.899434][   T73] 
[ 1212.901317][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1212.901317][   T73]      netdev_get_by_index+0x5e/0x80
[ 1212.901317][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1212.901317][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1212.901317][   T73]      ip6_route_add+0x1c/0x140
[ 1212.901317][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1212.901317][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1212.901317][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1212.901317][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1212.901317][   T73]      netlink_rcv_skb+0x130/0x360
[ 1212.901317][   T73]      netlink_unicast+0x449/0x710
[ 1212.901317][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1212.901317][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1212.901317][   T73]      ___sys_sendmsg+0xee/0x170
[ 1212.901317][   T73]      __sys_sendmsg+0xcd/0x170
[ 1212.901317][   T73]      do_syscall_64+0xc6/0x1e0
[ 1212.901317][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1212.901317][   T73] 
[ 1212.903536][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1212.903536][   T73]      netdev_get_by_index+0x5e/0x80
[ 1212.903536][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1212.903536][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1212.903536][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1212.903536][   T73]      ipv6_add_addr+0x411/0x2000
[ 1212.903536][   T73]      inet6_addr_add+0x30e/0xa40
[ 1212.903536][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1212.903536][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1212.903536][   T73]      netlink_rcv_skb+0x130/0x360
[ 1212.903536][   T73]      netlink_unicast+0x449/0x710
[ 1212.903536][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1212.903536][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1212.903536][   T73]      ___sys_sendmsg+0xee/0x170
[ 1212.903536][   T73]      __sys_sendmsg+0xcd/0x170
[ 1212.903536][   T73]      do_syscall_64+0xc6/0x1e0
[ 1212.903536][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1212.903536][   T73] 
[ 1212.905702][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1212.905702][   T73]      netdev_get_by_index+0x5e/0x80
[ 1212.905702][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1212.905702][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1212.905702][   T73]      ip6_route_add+0x1c/0x140
[ 1212.905702][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1212.905702][   T73]      addrconf_add_dev+0xe2/0x170
[ 1212.905702][   T73]      inet6_addr_add+0x12f/0xa40
[ 1212.905702][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1212.905702][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1212.905702][   T73]      netlink_rcv_skb+0x130/0x360
[ 1212.905702][   T73]      netlink_unicast+0x449/0x710
[ 1212.905702][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1212.905702][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1212.905702][   T73]      ___sys_sendmsg+0xee/0x170
[ 1212.905702][   T73]      __sys_sendmsg+0xcd/0x170
[ 1212.905702][   T73]      do_syscall_64+0xc6/0x1e0
[ 1212.905702][   T73] 
[ 1212.907902][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1212.907902][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1212.907902][   T73]      ipv6_find_idev+0x102/0x170
[ 1212.907902][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1212.907902][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1212.907902][   T73]      netlink_rcv_skb+0x130/0x360
[ 1212.907902][   T73]      netlink_unicast+0x449/0x710
[ 1212.907902][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1212.907902][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1212.907902][   T73]      ___sys_sendmsg+0xee/0x170
[ 1212.907902][   T73]      __sys_sendmsg+0xcd/0x170
[ 1212.907902][   T73]      do_syscall_64+0xc6/0x1e0
[ 1212.907902][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1212.907902][   T73] 
[ 1212.909679][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1212.909679][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1212.909679][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1212.909679][   T73]      ipv6_find_idev+0x102/0x170
[ 1212.909679][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1212.909679][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1212.909679][   T73]      netlink_rcv_skb+0x130/0x360
[ 1212.909679][   T73]      netlink_unicast+0x449/0x710
[ 1212.909679][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1212.909679][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1212.909679][   T73]      ___sys_sendmsg+0xee/0x170
[ 1212.909679][   T73]      __sys_sendmsg+0xcd/0x170
[ 1212.909679][   T73]      do_syscall_64+0xc6/0x1e0
[ 1212.909679][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1212.909679][   T73] 
[ 1212.911543][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1212.912381][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1212.912381][   T73]      netdev_get_by_index+0x5e/0x80
[ 1212.912381][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1212.912381][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1212.912381][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1212.912381][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1212.912381][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1212.912381][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1212.912381][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1212.912381][   T73]      addrconf_dad_begin+0x310/0x670
[ 1212.912381][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1212.912381][   T73]      process_one_work+0x84d/0x18a0
[ 1212.912381][   T73]      worker_thread+0x587/0xd30
[ 1212.912381][   T73]      kthread+0x28a/0x350
[ 1212.912381][   T73]      ret_from_fork+0x31/0x70
[ 1212.912381][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1212.912381][   T73] 
[ 1212.914427][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1212.914427][   T73]      netdev_get_by_index+0x5e/0x80
[ 1212.914427][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1212.914427][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1212.914427][   T73]      ip6_route_add+0x1c/0x140
[ 1212.914427][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1212.914427][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1212.914427][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1212.914427][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1212.914427][   T73]      netlink_rcv_skb+0x130/0x360
[ 1212.914427][   T73]      netlink_unicast+0x449/0x710
[ 1212.914427][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1212.914427][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1212.914427][   T73]      ___sys_sendmsg+0xee/0x170
[ 1212.914427][   T73]      __sys_sendmsg+0xcd/0x170
[ 1212.914427][   T73]      do_syscall_64+0xc6/0x1e0
[ 1212.914427][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1212.914427][   T73] 
[ 1212.916509][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1212.916509][   T73]      netdev_get_by_index+0x5e/0x80
[ 1212.916509][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1212.916509][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1212.916509][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1212.916509][   T73]      ipv6_add_addr+0x411/0x2000
[ 1212.916509][   T73]      inet6_addr_add+0x30e/0xa40
[ 1212.916509][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1212.916509][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1212.916509][   T73]      netlink_rcv_skb+0x130/0x360
[ 1212.916509][   T73]      netlink_unicast+0x449/0x710
[ 1212.916509][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1212.916509][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1212.916509][   T73]      ___sys_sendmsg+0xee/0x170
[ 1212.916509][   T73]      __sys_sendmsg+0xcd/0x170
[ 1212.916509][   T73]      do_syscall_64+0xc6/0x1e0
[ 1212.916509][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1212.916509][   T73] 
[ 1212.918825][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1212.918825][   T73]      netdev_get_by_index+0x5e/0x80
[ 1212.918825][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1212.918825][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1212.918825][   T73]      ip6_route_add+0x1c/0x140
[ 1212.918825][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1212.918825][   T73]      addrconf_add_dev+0xe2/0x170
[ 1212.918825][   T73]      inet6_addr_add+0x12f/0xa40
[ 1212.918825][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1212.918825][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1212.918825][   T73]      netlink_rcv_skb+0x130/0x360
[ 1212.918825][   T73]      netlink_unicast+0x449/0x710
[ 1212.918825][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1212.918825][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1212.918825][   T73]      ___sys_sendmsg+0xee/0x170
[ 1212.918825][   T73]      __sys_sendmsg+0xcd/0x170
[ 1212.918825][   T73]      do_syscall_64+0xc6/0x1e0
[ 1212.918825][   T73] 
[ 1212.921110][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1212.921110][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1212.921110][   T73]      ipv6_find_idev+0x102/0x170
[ 1212.921110][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1212.921110][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1212.921110][   T73]      netlink_rcv_skb+0x130/0x360
[ 1212.921110][   T73]      netlink_unicast+0x449/0x710
[ 1212.921110][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1212.921110][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1212.921110][   T73]      ___sys_sendmsg+0xee/0x170
[ 1212.921110][   T73]      __sys_sendmsg+0xcd/0x170
[ 1212.921110][   T73]      do_syscall_64+0xc6/0x1e0
[ 1212.921110][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1212.921110][   T73] 
[ 1212.922884][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1212.922884][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1212.922884][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1212.922884][   T73]      ipv6_find_idev+0x102/0x170
[ 1212.922884][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1212.922884][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1212.922884][   T73]      netlink_rcv_skb+0x130/0x360
[ 1212.922884][   T73]      netlink_unicast+0x449/0x710
[ 1212.922884][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1212.922884][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1212.922884][   T73]      ___sys_sendmsg+0xee/0x170
[ 1212.922884][   T73]      __sys_sendmsg+0xcd/0x170
[ 1212.922884][   T73]      do_syscall_64+0xc6/0x1e0
[ 1212.922884][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1212.922884][   T73] 
[ 1223.175858][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1223.176359][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1223.176359][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1223.176359][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1223.176359][   T73]      fib6_nh_init+0xa22/0x1580
[ 1223.176359][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1223.176359][   T73]      ip6_route_add+0x1c/0x140
[ 1223.176359][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1223.176359][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1223.176359][   T73]      netlink_rcv_skb+0x130/0x360
[ 1223.176359][   T73]      netlink_unicast+0x449/0x710
[ 1223.176359][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1223.176359][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1223.176359][   T73]      ___sys_sendmsg+0xee/0x170
[ 1223.176359][   T73]      __sys_sendmsg+0xcd/0x170
[ 1223.176359][   T73]      do_syscall_64+0xc6/0x1e0
[ 1223.176359][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1223.176359][   T73] 
[ 1223.178254][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1223.178254][   T73]      dst_init+0x84/0x4a0
[ 1223.178254][   T73]      dst_alloc+0x97/0x150
[ 1223.178254][   T73]      ip6_dst_alloc+0x23/0x90
[ 1223.178254][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1223.178254][   T73]      ip6_pol_route+0x56f/0x840
[ 1223.178254][   T73]      fib6_rule_lookup+0x456/0x630
[ 1223.178254][   T73]      ip6_route_input+0x59c/0xa50
[ 1223.178254][   T73]      ipv6_rcv+0x397/0x810
[ 1223.178254][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1223.178254][   T73]      process_backlog+0x101/0x620
[ 1223.178254][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1223.178254][   T73]      net_rx_action+0x495/0xbe0
[ 1223.178254][   T73]      __do_softirq+0x1b5/0x7f6
[ 1223.178254][   T73] 
[ 1223.179902][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1223.179902][   T73]      netdev_get_by_index+0x5e/0x80
[ 1223.179902][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1223.179902][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1223.179902][   T73]      ip6_route_add+0x1c/0x140
[ 1223.179902][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1223.179902][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1223.179902][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1223.179902][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1223.179902][   T73]      netlink_rcv_skb+0x130/0x360
[ 1223.179902][   T73]      netlink_unicast+0x449/0x710
[ 1223.179902][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1223.179902][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1223.179902][   T73]      ___sys_sendmsg+0xee/0x170
[ 1223.179902][   T73]      __sys_sendmsg+0xcd/0x170
[ 1223.179902][   T73]      do_syscall_64+0xc6/0x1e0
[ 1223.179902][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1223.179902][   T73] 
[ 1223.181914][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1223.181914][   T73]      netdev_get_by_index+0x5e/0x80
[ 1223.181914][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1223.181914][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1223.181914][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1223.181914][   T73]      ipv6_add_addr+0x411/0x2000
[ 1223.181914][   T73]      inet6_addr_add+0x30e/0xa40
[ 1223.181914][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1223.181914][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1223.181914][   T73]      netlink_rcv_skb+0x130/0x360
[ 1223.181914][   T73]      netlink_unicast+0x449/0x710
[ 1223.181914][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1223.181914][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1223.181914][   T73]      ___sys_sendmsg+0xee/0x170
[ 1223.181914][   T73]      __sys_sendmsg+0xcd/0x170
[ 1223.181914][   T73]      do_syscall_64+0xc6/0x1e0
[ 1223.181914][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1223.181914][   T73] 
[ 1223.183907][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1223.183907][   T73]      netdev_get_by_index+0x5e/0x80
[ 1223.183907][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1223.183907][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1223.183907][   T73]      ip6_route_add+0x1c/0x140
[ 1223.183907][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1223.183907][   T73]      addrconf_add_dev+0xe2/0x170
[ 1223.183907][   T73]      inet6_addr_add+0x12f/0xa40
[ 1223.183907][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1223.183907][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1223.183907][   T73]      netlink_rcv_skb+0x130/0x360
[ 1223.183907][   T73]      netlink_unicast+0x449/0x710
[ 1223.183907][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1223.183907][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1223.183907][   T73]      ___sys_sendmsg+0xee/0x170
[ 1223.183907][   T73]      __sys_sendmsg+0xcd/0x170
[ 1223.183907][   T73]      do_syscall_64+0xc6/0x1e0
[ 1223.183907][   T73] 
[ 1223.185868][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1223.185868][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1223.185868][   T73]      ipv6_find_idev+0x102/0x170
[ 1223.185868][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1223.185868][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1223.185868][   T73]      netlink_rcv_skb+0x130/0x360
[ 1223.185868][   T73]      netlink_unicast+0x449/0x710
[ 1223.185868][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1223.185868][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1223.185868][   T73]      ___sys_sendmsg+0xee/0x170
[ 1223.185868][   T73]      __sys_sendmsg+0xcd/0x170
[ 1223.185868][   T73]      do_syscall_64+0xc6/0x1e0
[ 1223.185868][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1223.185868][   T73] 
[ 1223.187410][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1223.187410][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1223.187410][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1223.187410][   T73]      ipv6_find_idev+0x102/0x170
[ 1223.187410][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1223.187410][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1223.187410][   T73]      netlink_rcv_skb+0x130/0x360
[ 1223.187410][   T73]      netlink_unicast+0x449/0x710
[ 1223.187410][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1223.187410][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1223.187410][   T73]      ___sys_sendmsg+0xee/0x170
[ 1223.187410][   T73]      __sys_sendmsg+0xcd/0x170
[ 1223.187410][   T73]      do_syscall_64+0xc6/0x1e0
[ 1223.187410][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1223.187410][   T73] 
[ 1223.189110][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1223.189415][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1223.189415][   T73]      netdev_get_by_index+0x5e/0x80
[ 1223.189415][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1223.189415][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1223.189415][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1223.189415][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1223.189415][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1223.189415][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1223.189415][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1223.189415][   T73]      addrconf_dad_begin+0x310/0x670
[ 1223.189415][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1223.189415][   T73]      process_one_work+0x84d/0x18a0
[ 1223.189415][   T73]      worker_thread+0x587/0xd30
[ 1223.189415][   T73]      kthread+0x28a/0x350
[ 1223.189415][   T73]      ret_from_fork+0x31/0x70
[ 1223.189415][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1223.189415][   T73] 
[ 1223.191334][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1223.191334][   T73]      netdev_get_by_index+0x5e/0x80
[ 1223.191334][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1223.191334][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1223.191334][   T73]      ip6_route_add+0x1c/0x140
[ 1223.191334][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1223.191334][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1223.191334][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1223.191334][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1223.191334][   T73]      netlink_rcv_skb+0x130/0x360
[ 1223.191334][   T73]      netlink_unicast+0x449/0x710
[ 1223.191334][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1223.191334][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1223.191334][   T73]      ___sys_sendmsg+0xee/0x170
[ 1223.191334][   T73]      __sys_sendmsg+0xcd/0x170
[ 1223.191334][   T73]      do_syscall_64+0xc6/0x1e0
[ 1223.191334][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1223.191334][   T73] 
[ 1223.193324][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1223.193324][   T73]      netdev_get_by_index+0x5e/0x80
[ 1223.193324][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1223.193324][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1223.193324][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1223.193324][   T73]      ipv6_add_addr+0x411/0x2000
[ 1223.193324][   T73]      inet6_addr_add+0x30e/0xa40
[ 1223.193324][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1223.193324][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1223.193324][   T73]      netlink_rcv_skb+0x130/0x360
[ 1223.193324][   T73]      netlink_unicast+0x449/0x710
[ 1223.193324][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1223.193324][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1223.193324][   T73]      ___sys_sendmsg+0xee/0x170
[ 1223.193324][   T73]      __sys_sendmsg+0xcd/0x170
[ 1223.193324][   T73]      do_syscall_64+0xc6/0x1e0
[ 1223.193324][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1223.193324][   T73] 
[ 1223.195312][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1223.195312][   T73]      netdev_get_by_index+0x5e/0x80
[ 1223.195312][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1223.195312][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1223.195312][   T73]      ip6_route_add+0x1c/0x140
[ 1223.195312][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1223.195312][   T73]      addrconf_add_dev+0xe2/0x170
[ 1223.195312][   T73]      inet6_addr_add+0x12f/0xa40
[ 1223.195312][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1223.195312][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1223.195312][   T73]      netlink_rcv_skb+0x130/0x360
[ 1223.195312][   T73]      netlink_unicast+0x449/0x710
[ 1223.195312][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1223.195312][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1223.195312][   T73]      ___sys_sendmsg+0xee/0x170
[ 1223.195312][   T73]      __sys_sendmsg+0xcd/0x170
[ 1223.195312][   T73]      do_syscall_64+0xc6/0x1e0
[ 1223.195312][   T73] 
[ 1223.197286][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1223.197286][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1223.197286][   T73]      ipv6_find_idev+0x102/0x170
[ 1223.197286][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1223.197286][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1223.197286][   T73]      netlink_rcv_skb+0x130/0x360
[ 1223.197286][   T73]      netlink_unicast+0x449/0x710
[ 1223.197286][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1223.197286][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1223.197286][   T73]      ___sys_sendmsg+0xee/0x170
[ 1223.197286][   T73]      __sys_sendmsg+0xcd/0x170
[ 1223.197286][   T73]      do_syscall_64+0xc6/0x1e0
[ 1223.197286][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1223.197286][   T73] 
[ 1223.198825][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1223.198825][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1223.198825][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1223.198825][   T73]      ipv6_find_idev+0x102/0x170
[ 1223.198825][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1223.198825][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1223.198825][   T73]      netlink_rcv_skb+0x130/0x360
[ 1223.198825][   T73]      netlink_unicast+0x449/0x710
[ 1223.198825][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1223.198825][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1223.198825][   T73]      ___sys_sendmsg+0xee/0x170
[ 1223.198825][   T73]      __sys_sendmsg+0xcd/0x170
[ 1223.198825][   T73]      do_syscall_64+0xc6/0x1e0
[ 1223.198825][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1223.198825][   T73] 
[ 1223.200526][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1223.200811][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1223.200811][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1223.200811][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1223.200811][   T73]      fib6_nh_init+0xa22/0x1580
[ 1223.200811][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1223.200811][   T73]      ip6_route_add+0x1c/0x140
[ 1223.200811][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1223.200811][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1223.200811][   T73]      netlink_rcv_skb+0x130/0x360
[ 1223.200811][   T73]      netlink_unicast+0x449/0x710
[ 1223.200811][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1223.200811][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1223.200811][   T73]      ___sys_sendmsg+0xee/0x170
[ 1223.200811][   T73]      __sys_sendmsg+0xcd/0x170
[ 1223.200811][   T73]      do_syscall_64+0xc6/0x1e0
[ 1223.200811][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1223.200811][   T73] 
[ 1223.202879][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1223.202879][   T73]      dst_init+0x84/0x4a0
[ 1223.202879][   T73]      dst_alloc+0x97/0x150
[ 1223.202879][   T73]      ip6_dst_alloc+0x23/0x90
[ 1223.202879][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1223.202879][   T73]      ip6_pol_route+0x56f/0x840
[ 1223.202879][   T73]      fib6_rule_lookup+0x456/0x630
[ 1223.202879][   T73]      ip6_route_input+0x59c/0xa50
[ 1223.202879][   T73]      ipv6_rcv+0x397/0x810
[ 1223.202879][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1223.202879][   T73]      process_backlog+0x101/0x620
[ 1223.202879][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1223.202879][   T73]      net_rx_action+0x495/0xbe0
[ 1223.202879][   T73]      __do_softirq+0x1b5/0x7f6
[ 1223.202879][   T73] 
[ 1223.204693][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1223.204693][   T73]      netdev_get_by_index+0x5e/0x80
[ 1223.204693][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1223.204693][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1223.204693][   T73]      ip6_route_add+0x1c/0x140
[ 1223.204693][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1223.204693][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1223.204693][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1223.204693][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1223.204693][   T73]      netlink_rcv_skb+0x130/0x360
[ 1223.204693][   T73]      netlink_unicast+0x449/0x710
[ 1223.204693][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1223.204693][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1223.204693][   T73]      ___sys_sendmsg+0xee/0x170
[ 1223.204693][   T73]      __sys_sendmsg+0xcd/0x170
[ 1223.204693][   T73]      do_syscall_64+0xc6/0x1e0
[ 1223.204693][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1223.204693][   T73] 
[ 1223.206926][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1223.206926][   T73]      netdev_get_by_index+0x5e/0x80
[ 1223.206926][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1223.206926][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1223.206926][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1223.206926][   T73]      ipv6_add_addr+0x411/0x2000
[ 1223.206926][   T73]      inet6_addr_add+0x30e/0xa40
[ 1223.206926][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1223.206926][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1223.206926][   T73]      netlink_rcv_skb+0x130/0x360
[ 1223.206926][   T73]      netlink_unicast+0x449/0x710
[ 1223.206926][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1223.206926][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1223.206926][   T73]      ___sys_sendmsg+0xee/0x170
[ 1223.206926][   T73]      __sys_sendmsg+0xcd/0x170
[ 1223.206926][   T73]      do_syscall_64+0xc6/0x1e0
[ 1223.206926][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1223.206926][   T73] 
[ 1223.209099][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1223.209099][   T73]      netdev_get_by_index+0x5e/0x80
[ 1223.209099][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1223.209099][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1223.209099][   T73]      ip6_route_add+0x1c/0x140
[ 1223.209099][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1223.209099][   T73]      addrconf_add_dev+0xe2/0x170
[ 1223.209099][   T73]      inet6_addr_add+0x12f/0xa40
[ 1223.209099][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1223.209099][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1223.209099][   T73]      netlink_rcv_skb+0x130/0x360
[ 1223.209099][   T73]      netlink_unicast+0x449/0x710
[ 1223.209099][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1223.209099][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1223.209099][   T73]      ___sys_sendmsg+0xee/0x170
[ 1223.209099][   T73]      __sys_sendmsg+0xcd/0x170
[ 1223.209099][   T73]      do_syscall_64+0xc6/0x1e0
[ 1223.209099][   T73] 
[ 1223.211377][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1223.211377][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1223.211377][   T73]      ipv6_find_idev+0x102/0x170
[ 1223.211377][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1223.211377][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1223.211377][   T73]      netlink_rcv_skb+0x130/0x360
[ 1223.211377][   T73]      netlink_unicast+0x449/0x710
[ 1223.211377][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1223.211377][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1223.211377][   T73]      ___sys_sendmsg+0xee/0x170
[ 1223.211377][   T73]      __sys_sendmsg+0xcd/0x170
[ 1223.211377][   T73]      do_syscall_64+0xc6/0x1e0
[ 1223.211377][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1223.211377][   T73] 
[ 1223.213103][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1223.213103][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1223.213103][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1223.213103][   T73]      ipv6_find_idev+0x102/0x170
[ 1223.213103][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1223.213103][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1223.213103][   T73]      netlink_rcv_skb+0x130/0x360
[ 1223.213103][   T73]      netlink_unicast+0x449/0x710
[ 1223.213103][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1223.213103][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1223.213103][   T73]      ___sys_sendmsg+0xee/0x170
[ 1223.213103][   T73]      __sys_sendmsg+0xcd/0x170
[ 1223.213103][   T73]      do_syscall_64+0xc6/0x1e0
[ 1223.213103][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1223.213103][   T73] 
[ 1223.214984][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1223.215333][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1223.215333][   T73]      netdev_get_by_index+0x5e/0x80
[ 1223.215333][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1223.215333][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1223.215333][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1223.215333][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1223.215333][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1223.215333][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1223.215333][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1223.215333][   T73]      addrconf_dad_begin+0x310/0x670
[ 1223.215333][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1223.215333][   T73]      process_one_work+0x84d/0x18a0
[ 1223.215333][   T73]      worker_thread+0x587/0xd30
[ 1223.215333][   T73]      kthread+0x28a/0x350
[ 1223.215333][   T73]      ret_from_fork+0x31/0x70
[ 1223.215333][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1223.215333][   T73] 
[ 1223.217355][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1223.217355][   T73]      netdev_get_by_index+0x5e/0x80
[ 1223.217355][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1223.217355][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1223.217355][   T73]      ip6_route_add+0x1c/0x140
[ 1223.217355][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1223.217355][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1223.217355][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1223.217355][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1223.217355][   T73]      netlink_rcv_skb+0x130/0x360
[ 1223.217355][   T73]      netlink_unicast+0x449/0x710
[ 1223.217355][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1223.217355][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1223.217355][   T73]      ___sys_sendmsg+0xee/0x170
[ 1223.217355][   T73]      __sys_sendmsg+0xcd/0x170
[ 1223.217355][   T73]      do_syscall_64+0xc6/0x1e0
[ 1223.217355][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1223.217355][   T73] 
[ 1223.219653][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1223.219653][   T73]      netdev_get_by_index+0x5e/0x80
[ 1223.219653][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1223.219653][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1223.219653][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1223.219653][   T73]      ipv6_add_addr+0x411/0x2000
[ 1223.219653][   T73]      inet6_addr_add+0x30e/0xa40
[ 1223.219653][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1223.219653][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1223.219653][   T73]      netlink_rcv_skb+0x130/0x360
[ 1223.219653][   T73]      netlink_unicast+0x449/0x710
[ 1223.219653][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1223.219653][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1223.219653][   T73]      ___sys_sendmsg+0xee/0x170
[ 1223.219653][   T73]      __sys_sendmsg+0xcd/0x170
[ 1223.219653][   T73]      do_syscall_64+0xc6/0x1e0
[ 1223.219653][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1223.219653][   T73] 
[ 1223.222900][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1223.222900][   T73]      netdev_get_by_index+0x5e/0x80
[ 1223.222900][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1223.222900][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1223.222900][   T73]      ip6_route_add+0x1c/0x140
[ 1223.222900][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1223.222900][   T73]      addrconf_add_dev+0xe2/0x170
[ 1223.222900][   T73]      inet6_addr_add+0x12f/0xa40
[ 1223.222900][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1223.222900][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1223.222900][   T73]      netlink_rcv_skb+0x130/0x360
[ 1223.222900][   T73]      netlink_unicast+0x449/0x710
[ 1223.222900][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1223.222900][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1223.222900][   T73]      ___sys_sendmsg+0xee/0x170
[ 1223.222900][   T73]      __sys_sendmsg+0xcd/0x170
[ 1223.222900][   T73]      do_syscall_64+0xc6/0x1e0
[ 1223.222900][   T73] 
[ 1223.225130][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1223.225130][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1223.225130][   T73]      ipv6_find_idev+0x102/0x170
[ 1223.225130][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1223.225130][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1223.225130][   T73]      netlink_rcv_skb+0x130/0x360
[ 1223.225130][   T73]      netlink_unicast+0x449/0x710
[ 1223.225130][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1223.225130][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1223.225130][   T73]      ___sys_sendmsg+0xee/0x170
[ 1223.225130][   T73]      __sys_sendmsg+0xcd/0x170
[ 1223.225130][   T73]      do_syscall_64+0xc6/0x1e0
[ 1223.225130][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1223.225130][   T73] 
[ 1223.226874][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1223.226874][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1223.226874][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1223.226874][   T73]      ipv6_find_idev+0x102/0x170
[ 1223.226874][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1223.226874][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1223.226874][   T73]      netlink_rcv_skb+0x130/0x360
[ 1223.226874][   T73]      netlink_unicast+0x449/0x710
[ 1223.226874][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1223.226874][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1223.226874][   T73]      ___sys_sendmsg+0xee/0x170
[ 1223.226874][   T73]      __sys_sendmsg+0xcd/0x170
[ 1223.226874][   T73]      do_syscall_64+0xc6/0x1e0
[ 1223.226874][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1223.226874][   T73] 
[ 1230.119800][   T42] INFO: task modprobe:885 blocked for more than 983 seconds.
[ 1230.120109][   T42]       Not tainted 6.8.0-virtme #1
[ 1230.120231][   T42] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1230.120428][   T42] task:modprobe        state:D stack:25856 pid:885   tgid:885   ppid:39     flags:0x00004002
[ 1230.120714][   T42] Call Trace:
[ 1230.120816][   T42]  <TASK>
[ 1230.120887][   T42]  __schedule+0x705/0x1ac0
[ 1230.121023][   T42]  ? __pfx___schedule+0x10/0x10
[ 1230.121148][   T42]  ? schedule+0x1a5/0x210
[ 1230.121248][   T42]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1230.121378][   T42]  ? mark_lock+0x38/0x3e0
[ 1230.121472][   T42]  ? do_raw_spin_lock+0x131/0x270
[ 1230.121598][   T42]  ? schedule+0x1a5/0x210
[ 1230.121716][   T42]  schedule+0xdf/0x210
[ 1230.121812][   T42]  schedule_preempt_disabled+0x15/0x30
[ 1230.121935][   T42]  rwsem_down_write_slowpath+0x3af/0xab0
[ 1230.122065][   T42]  ? __pfx_rwsem_down_write_slowpath+0x10/0x10
[ 1230.122227][   T42]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1230.122355][   T42]  ? lock_acquire+0x1c1/0x220
[ 1230.122480][   T42]  ? register_pernet_subsys+0x1a/0x50
[ 1230.122611][   T42]  down_write+0x1c9/0x200
[ 1230.122715][   T42]  ? __pfx_down_write+0x10/0x10
[ 1230.122842][   T42]  ? __lock_release+0x103/0x460
[ 1230.122967][   T42]  ? __create_object+0x5e/0xb0
[ 1230.123094][   T42]  ? __pfx___lock_release+0x10/0x10
[ 1230.123223][   T42]  register_pernet_subsys+0x1a/0x50
[ 1230.123353][   T42]  tcf_register_action+0xa3/0x600
[ 1230.123479][   T42]  ? __pfx_pedit_init_module+0x10/0x10 [act_pedit]
[ 1230.123654][   T42]  do_one_initcall+0xc8/0x3f0
[ 1230.123781][   T42]  ? __pfx_do_one_initcall+0x10/0x10
[ 1230.123910][   T42]  ? __create_object+0x5e/0xb0
[ 1230.124036][   T42]  ? kasan_unpoison+0x27/0x60
[ 1230.124168][   T42]  do_init_module+0x233/0x740
[ 1230.124303][   T42]  load_module+0x16b5/0x2350
[ 1230.124439][   T42]  ? __pfx_load_module+0x10/0x10
[ 1230.124562][   T42]  ? kernel_read_file+0x3d2/0x520
[ 1230.124701][   T42]  ? kernel_read_file+0x300/0x520
[ 1230.124827][   T42]  ? __pfx_kernel_read_file+0x10/0x10
[ 1230.124961][   T42]  ? init_module_from_file+0xd2/0x130
[ 1230.125085][   T42]  init_module_from_file+0xd2/0x130
[ 1230.125208][   T42]  ? __pfx_init_module_from_file+0x10/0x10
[ 1230.125362][   T42]  ? __lock_release+0x103/0x460
[ 1230.125484][   T42]  ? idempotent_init_module+0x32a/0x620
[ 1230.125619][   T42]  ? idempotent_init_module+0x32a/0x620
[ 1230.125752][   T42]  ? do_raw_spin_unlock+0x58/0x220
[ 1230.125879][   T42]  idempotent_init_module+0x342/0x620
[ 1230.126004][   T42]  ? __pfx_idempotent_init_module+0x10/0x10
[ 1230.126177][   T42]  __x64_sys_finit_module+0xbe/0x130
[ 1230.126301][   T42]  do_syscall_64+0xc6/0x1e0
[ 1230.126433][   T42]  entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1230.126592][   T42] RIP: 0033:0x7f505b1e4e5d
[ 1230.126728][   T42] RSP: 002b:00007ffe4f186f28 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[ 1230.126915][   T42] RAX: ffffffffffffffda RBX: 000055ce7b6ccc80 RCX: 00007f505b1e4e5d
[ 1230.127096][   T42] RDX: 0000000000000000 RSI: 000055ce5e14da2a RDI: 0000000000000000
[ 1230.127282][   T42] RBP: 0000000000040000 R08: 0000000000000000 R09: 00007ffe4f187060
[ 1230.127466][   T42] R10: 0000000000000000 R11: 0000000000000246 R12: 000055ce5e14da2a
[ 1230.127660][   T42] R13: 000055ce7b6ccac0 R14: 000055ce7b6cd0b0 R15: 000055ce7b6cccf2
[ 1230.127857][   T42]  </TASK>
[ 1230.127952][   T42] 
[ 1230.127952][   T42] Showing all locks held in the system:
[ 1230.128876][   T42] 2 locks held by kworker/u20:0/39:
[ 1230.129005][   T42]  #0: ffff888001161d48 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0
[ 1230.129267][   T42]  #1: ffffc900002c7da0 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0
[ 1230.129551][   T42] 1 lock held by khungtaskd/42:
[ 1230.129680][   T42]  #0: ffffffffaf7591e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x350
[ 1230.129916][   T42] 3 locks held by kworker/u16:1/73:
[ 1230.130036][   T42]  #0: ffff88800190a948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0
[ 1230.130281][   T42]  #1: ffffc900004efda0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0
[ 1230.130498][   T42]  #2: ffffffffaff6a1d0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xbc/0xb60
[ 1230.130728][   T42] 1 lock held by modprobe/885:
[ 1230.130846][   T42]  #0: ffffffffaff6a1d0 (pernet_ops_rwsem){++++}-{3:3}, at: register_pernet_subsys+0x1a/0x50
[ 1230.131092][   T42] 
[ 1230.131156][   T42] =============================================
[ 1230.131156][   T42] 
[ 1233.295776][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1233.296257][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1233.296257][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1233.296257][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1233.296257][   T73]      fib6_nh_init+0xa22/0x1580
[ 1233.296257][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1233.296257][   T73]      ip6_route_add+0x1c/0x140
[ 1233.296257][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1233.296257][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1233.296257][   T73]      netlink_rcv_skb+0x130/0x360
[ 1233.296257][   T73]      netlink_unicast+0x449/0x710
[ 1233.296257][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1233.296257][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1233.296257][   T73]      ___sys_sendmsg+0xee/0x170
[ 1233.296257][   T73]      __sys_sendmsg+0xcd/0x170
[ 1233.296257][   T73]      do_syscall_64+0xc6/0x1e0
[ 1233.296257][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1233.296257][   T73] 
[ 1233.298162][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1233.298162][   T73]      dst_init+0x84/0x4a0
[ 1233.298162][   T73]      dst_alloc+0x97/0x150
[ 1233.298162][   T73]      ip6_dst_alloc+0x23/0x90
[ 1233.298162][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1233.298162][   T73]      ip6_pol_route+0x56f/0x840
[ 1233.298162][   T73]      fib6_rule_lookup+0x456/0x630
[ 1233.298162][   T73]      ip6_route_input+0x59c/0xa50
[ 1233.298162][   T73]      ipv6_rcv+0x397/0x810
[ 1233.298162][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1233.298162][   T73]      process_backlog+0x101/0x620
[ 1233.298162][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1233.298162][   T73]      net_rx_action+0x495/0xbe0
[ 1233.298162][   T73]      __do_softirq+0x1b5/0x7f6
[ 1233.298162][   T73] 
[ 1233.299803][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1233.299803][   T73]      netdev_get_by_index+0x5e/0x80
[ 1233.299803][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1233.299803][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1233.299803][   T73]      ip6_route_add+0x1c/0x140
[ 1233.299803][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1233.299803][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1233.299803][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1233.299803][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1233.299803][   T73]      netlink_rcv_skb+0x130/0x360
[ 1233.299803][   T73]      netlink_unicast+0x449/0x710
[ 1233.299803][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1233.299803][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1233.299803][   T73]      ___sys_sendmsg+0xee/0x170
[ 1233.299803][   T73]      __sys_sendmsg+0xcd/0x170
[ 1233.299803][   T73]      do_syscall_64+0xc6/0x1e0
[ 1233.299803][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1233.299803][   T73] 
[ 1233.301798][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1233.301798][   T73]      netdev_get_by_index+0x5e/0x80
[ 1233.301798][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1233.301798][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1233.301798][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1233.301798][   T73]      ipv6_add_addr+0x411/0x2000
[ 1233.301798][   T73]      inet6_addr_add+0x30e/0xa40
[ 1233.301798][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1233.301798][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1233.301798][   T73]      netlink_rcv_skb+0x130/0x360
[ 1233.301798][   T73]      netlink_unicast+0x449/0x710
[ 1233.301798][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1233.301798][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1233.301798][   T73]      ___sys_sendmsg+0xee/0x170
[ 1233.301798][   T73]      __sys_sendmsg+0xcd/0x170
[ 1233.301798][   T73]      do_syscall_64+0xc6/0x1e0
[ 1233.301798][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1233.301798][   T73] 
[ 1233.303789][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1233.303789][   T73]      netdev_get_by_index+0x5e/0x80
[ 1233.303789][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1233.303789][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1233.303789][   T73]      ip6_route_add+0x1c/0x140
[ 1233.303789][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1233.303789][   T73]      addrconf_add_dev+0xe2/0x170
[ 1233.303789][   T73]      inet6_addr_add+0x12f/0xa40
[ 1233.303789][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1233.303789][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1233.303789][   T73]      netlink_rcv_skb+0x130/0x360
[ 1233.303789][   T73]      netlink_unicast+0x449/0x710
[ 1233.303789][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1233.303789][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1233.303789][   T73]      ___sys_sendmsg+0xee/0x170
[ 1233.303789][   T73]      __sys_sendmsg+0xcd/0x170
[ 1233.303789][   T73]      do_syscall_64+0xc6/0x1e0
[ 1233.303789][   T73] 
[ 1233.305758][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1233.305758][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1233.305758][   T73]      ipv6_find_idev+0x102/0x170
[ 1233.305758][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1233.305758][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1233.305758][   T73]      netlink_rcv_skb+0x130/0x360
[ 1233.305758][   T73]      netlink_unicast+0x449/0x710
[ 1233.305758][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1233.305758][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1233.305758][   T73]      ___sys_sendmsg+0xee/0x170
[ 1233.305758][   T73]      __sys_sendmsg+0xcd/0x170
[ 1233.305758][   T73]      do_syscall_64+0xc6/0x1e0
[ 1233.305758][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1233.305758][   T73] 
[ 1233.307322][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1233.307322][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1233.307322][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1233.307322][   T73]      ipv6_find_idev+0x102/0x170
[ 1233.307322][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1233.307322][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1233.307322][   T73]      netlink_rcv_skb+0x130/0x360
[ 1233.307322][   T73]      netlink_unicast+0x449/0x710
[ 1233.307322][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1233.307322][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1233.307322][   T73]      ___sys_sendmsg+0xee/0x170
[ 1233.307322][   T73]      __sys_sendmsg+0xcd/0x170
[ 1233.307322][   T73]      do_syscall_64+0xc6/0x1e0
[ 1233.307322][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1233.307322][   T73] 
[ 1233.309042][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1233.309344][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1233.309344][   T73]      netdev_get_by_index+0x5e/0x80
[ 1233.309344][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1233.309344][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1233.309344][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1233.309344][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1233.309344][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1233.309344][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1233.309344][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1233.309344][   T73]      addrconf_dad_begin+0x310/0x670
[ 1233.309344][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1233.309344][   T73]      process_one_work+0x84d/0x18a0
[ 1233.309344][   T73]      worker_thread+0x587/0xd30
[ 1233.309344][   T73]      kthread+0x28a/0x350
[ 1233.309344][   T73]      ret_from_fork+0x31/0x70
[ 1233.309344][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1233.309344][   T73] 
[ 1233.311290][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1233.311290][   T73]      netdev_get_by_index+0x5e/0x80
[ 1233.311290][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1233.311290][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1233.311290][   T73]      ip6_route_add+0x1c/0x140
[ 1233.311290][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1233.311290][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1233.311290][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1233.311290][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1233.311290][   T73]      netlink_rcv_skb+0x130/0x360
[ 1233.311290][   T73]      netlink_unicast+0x449/0x710
[ 1233.311290][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1233.311290][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1233.311290][   T73]      ___sys_sendmsg+0xee/0x170
[ 1233.311290][   T73]      __sys_sendmsg+0xcd/0x170
[ 1233.311290][   T73]      do_syscall_64+0xc6/0x1e0
[ 1233.311290][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1233.311290][   T73] 
[ 1233.313344][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1233.313344][   T73]      netdev_get_by_index+0x5e/0x80
[ 1233.313344][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1233.313344][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1233.313344][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1233.313344][   T73]      ipv6_add_addr+0x411/0x2000
[ 1233.313344][   T73]      inet6_addr_add+0x30e/0xa40
[ 1233.313344][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1233.313344][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1233.313344][   T73]      netlink_rcv_skb+0x130/0x360
[ 1233.313344][   T73]      netlink_unicast+0x449/0x710
[ 1233.313344][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1233.313344][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1233.313344][   T73]      ___sys_sendmsg+0xee/0x170
[ 1233.313344][   T73]      __sys_sendmsg+0xcd/0x170
[ 1233.313344][   T73]      do_syscall_64+0xc6/0x1e0
[ 1233.313344][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1233.313344][   T73] 
[ 1233.315365][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1233.315365][   T73]      netdev_get_by_index+0x5e/0x80
[ 1233.315365][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1233.315365][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1233.315365][   T73]      ip6_route_add+0x1c/0x140
[ 1233.315365][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1233.315365][   T73]      addrconf_add_dev+0xe2/0x170
[ 1233.315365][   T73]      inet6_addr_add+0x12f/0xa40
[ 1233.315365][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1233.315365][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1233.315365][   T73]      netlink_rcv_skb+0x130/0x360
[ 1233.315365][   T73]      netlink_unicast+0x449/0x710
[ 1233.315365][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1233.315365][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1233.315365][   T73]      ___sys_sendmsg+0xee/0x170
[ 1233.315365][   T73]      __sys_sendmsg+0xcd/0x170
[ 1233.315365][   T73]      do_syscall_64+0xc6/0x1e0
[ 1233.315365][   T73] 
[ 1233.317345][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1233.317345][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1233.317345][   T73]      ipv6_find_idev+0x102/0x170
[ 1233.317345][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1233.317345][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1233.317345][   T73]      netlink_rcv_skb+0x130/0x360
[ 1233.317345][   T73]      netlink_unicast+0x449/0x710
[ 1233.317345][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1233.317345][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1233.317345][   T73]      ___sys_sendmsg+0xee/0x170
[ 1233.317345][   T73]      __sys_sendmsg+0xcd/0x170
[ 1233.317345][   T73]      do_syscall_64+0xc6/0x1e0
[ 1233.317345][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1233.317345][   T73] 
[ 1233.318896][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1233.318896][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1233.318896][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1233.318896][   T73]      ipv6_find_idev+0x102/0x170
[ 1233.318896][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1233.318896][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1233.318896][   T73]      netlink_rcv_skb+0x130/0x360
[ 1233.318896][   T73]      netlink_unicast+0x449/0x710
[ 1233.318896][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1233.318896][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1233.318896][   T73]      ___sys_sendmsg+0xee/0x170
[ 1233.318896][   T73]      __sys_sendmsg+0xcd/0x170
[ 1233.318896][   T73]      do_syscall_64+0xc6/0x1e0
[ 1233.318896][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1233.318896][   T73] 
[ 1233.320581][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1233.320862][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1233.320862][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1233.320862][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1233.320862][   T73]      fib6_nh_init+0xa22/0x1580
[ 1233.320862][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1233.320862][   T73]      ip6_route_add+0x1c/0x140
[ 1233.320862][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1233.320862][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1233.320862][   T73]      netlink_rcv_skb+0x130/0x360
[ 1233.320862][   T73]      netlink_unicast+0x449/0x710
[ 1233.320862][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1233.320862][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1233.320862][   T73]      ___sys_sendmsg+0xee/0x170
[ 1233.320862][   T73]      __sys_sendmsg+0xcd/0x170
[ 1233.320862][   T73]      do_syscall_64+0xc6/0x1e0
[ 1233.320862][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1233.320862][   T73] 
[ 1233.322860][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1233.322860][   T73]      dst_init+0x84/0x4a0
[ 1233.322860][   T73]      dst_alloc+0x97/0x150
[ 1233.322860][   T73]      ip6_dst_alloc+0x23/0x90
[ 1233.322860][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1233.322860][   T73]      ip6_pol_route+0x56f/0x840
[ 1233.322860][   T73]      fib6_rule_lookup+0x456/0x630
[ 1233.322860][   T73]      ip6_route_input+0x59c/0xa50
[ 1233.322860][   T73]      ipv6_rcv+0x397/0x810
[ 1233.322860][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1233.322860][   T73]      process_backlog+0x101/0x620
[ 1233.322860][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1233.322860][   T73]      net_rx_action+0x495/0xbe0
[ 1233.322860][   T73]      __do_softirq+0x1b5/0x7f6
[ 1233.322860][   T73] 
[ 1233.324664][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1233.324664][   T73]      netdev_get_by_index+0x5e/0x80
[ 1233.324664][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1233.324664][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1233.324664][   T73]      ip6_route_add+0x1c/0x140
[ 1233.324664][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1233.324664][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1233.324664][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1233.324664][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1233.324664][   T73]      netlink_rcv_skb+0x130/0x360
[ 1233.324664][   T73]      netlink_unicast+0x449/0x710
[ 1233.324664][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1233.324664][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1233.324664][   T73]      ___sys_sendmsg+0xee/0x170
[ 1233.324664][   T73]      __sys_sendmsg+0xcd/0x170
[ 1233.324664][   T73]      do_syscall_64+0xc6/0x1e0
[ 1233.324664][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1233.324664][   T73] 
[ 1233.326954][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1233.326954][   T73]      netdev_get_by_index+0x5e/0x80
[ 1233.326954][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1233.326954][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1233.326954][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1233.326954][   T73]      ipv6_add_addr+0x411/0x2000
[ 1233.326954][   T73]      inet6_addr_add+0x30e/0xa40
[ 1233.326954][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1233.326954][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1233.326954][   T73]      netlink_rcv_skb+0x130/0x360
[ 1233.326954][   T73]      netlink_unicast+0x449/0x710
[ 1233.326954][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1233.326954][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1233.326954][   T73]      ___sys_sendmsg+0xee/0x170
[ 1233.326954][   T73]      __sys_sendmsg+0xcd/0x170
[ 1233.326954][   T73]      do_syscall_64+0xc6/0x1e0
[ 1233.326954][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1233.326954][   T73] 
[ 1233.329124][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1233.329124][   T73]      netdev_get_by_index+0x5e/0x80
[ 1233.329124][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1233.329124][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1233.329124][   T73]      ip6_route_add+0x1c/0x140
[ 1233.329124][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1233.329124][   T73]      addrconf_add_dev+0xe2/0x170
[ 1233.329124][   T73]      inet6_addr_add+0x12f/0xa40
[ 1233.329124][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1233.329124][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1233.329124][   T73]      netlink_rcv_skb+0x130/0x360
[ 1233.329124][   T73]      netlink_unicast+0x449/0x710
[ 1233.329124][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1233.329124][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1233.329124][   T73]      ___sys_sendmsg+0xee/0x170
[ 1233.329124][   T73]      __sys_sendmsg+0xcd/0x170
[ 1233.329124][   T73]      do_syscall_64+0xc6/0x1e0
[ 1233.329124][   T73] 
[ 1233.331345][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1233.331345][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1233.331345][   T73]      ipv6_find_idev+0x102/0x170
[ 1233.331345][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1233.331345][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1233.331345][   T73]      netlink_rcv_skb+0x130/0x360
[ 1233.331345][   T73]      netlink_unicast+0x449/0x710
[ 1233.331345][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1233.331345][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1233.331345][   T73]      ___sys_sendmsg+0xee/0x170
[ 1233.331345][   T73]      __sys_sendmsg+0xcd/0x170
[ 1233.331345][   T73]      do_syscall_64+0xc6/0x1e0
[ 1233.331345][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1233.331345][   T73] 
[ 1233.333088][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1233.333088][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1233.333088][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1233.333088][   T73]      ipv6_find_idev+0x102/0x170
[ 1233.333088][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1233.333088][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1233.333088][   T73]      netlink_rcv_skb+0x130/0x360
[ 1233.333088][   T73]      netlink_unicast+0x449/0x710
[ 1233.333088][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1233.333088][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1233.333088][   T73]      ___sys_sendmsg+0xee/0x170
[ 1233.333088][   T73]      __sys_sendmsg+0xcd/0x170
[ 1233.333088][   T73]      do_syscall_64+0xc6/0x1e0
[ 1233.333088][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1233.333088][   T73] 
[ 1233.334988][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1233.335271][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1233.335271][   T73]      netdev_get_by_index+0x5e/0x80
[ 1233.335271][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1233.335271][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1233.335271][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1233.335271][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1233.335271][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1233.335271][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1233.335271][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1233.335271][   T73]      addrconf_dad_begin+0x310/0x670
[ 1233.335271][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1233.335271][   T73]      process_one_work+0x84d/0x18a0
[ 1233.335271][   T73]      worker_thread+0x587/0xd30
[ 1233.335271][   T73]      kthread+0x28a/0x350
[ 1233.335271][   T73]      ret_from_fork+0x31/0x70
[ 1233.335271][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1233.335271][   T73] 
[ 1233.337504][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1233.337504][   T73]      netdev_get_by_index+0x5e/0x80
[ 1233.337504][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1233.337504][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1233.337504][   T73]      ip6_route_add+0x1c/0x140
[ 1233.337504][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1233.337504][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1233.337504][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1233.337504][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1233.337504][   T73]      netlink_rcv_skb+0x130/0x360
[ 1233.337504][   T73]      netlink_unicast+0x449/0x710
[ 1233.337504][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1233.337504][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1233.337504][   T73]      ___sys_sendmsg+0xee/0x170
[ 1233.337504][   T73]      __sys_sendmsg+0xcd/0x170
[ 1233.337504][   T73]      do_syscall_64+0xc6/0x1e0
[ 1233.337504][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1233.337504][   T73] 
[ 1233.339744][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1233.339744][   T73]      netdev_get_by_index+0x5e/0x80
[ 1233.339744][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1233.339744][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1233.339744][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1233.339744][   T73]      ipv6_add_addr+0x411/0x2000
[ 1233.339744][   T73]      inet6_addr_add+0x30e/0xa40
[ 1233.339744][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1233.339744][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1233.339744][   T73]      netlink_rcv_skb+0x130/0x360
[ 1233.339744][   T73]      netlink_unicast+0x449/0x710
[ 1233.339744][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1233.339744][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1233.339744][   T73]      ___sys_sendmsg+0xee/0x170
[ 1233.339744][   T73]      __sys_sendmsg+0xcd/0x170
[ 1233.339744][   T73]      do_syscall_64+0xc6/0x1e0
[ 1233.339744][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1233.339744][   T73] 
[ 1233.341986][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1233.341986][   T73]      netdev_get_by_index+0x5e/0x80
[ 1233.341986][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1233.341986][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1233.341986][   T73]      ip6_route_add+0x1c/0x140
[ 1233.341986][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1233.341986][   T73]      addrconf_add_dev+0xe2/0x170
[ 1233.341986][   T73]      inet6_addr_add+0x12f/0xa40
[ 1233.341986][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1233.341986][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1233.341986][   T73]      netlink_rcv_skb+0x130/0x360
[ 1233.341986][   T73]      netlink_unicast+0x449/0x710
[ 1233.341986][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1233.341986][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1233.341986][   T73]      ___sys_sendmsg+0xee/0x170
[ 1233.341986][   T73]      __sys_sendmsg+0xcd/0x170
[ 1233.341986][   T73]      do_syscall_64+0xc6/0x1e0
[ 1233.341986][   T73] 
[ 1233.344184][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1233.344184][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1233.344184][   T73]      ipv6_find_idev+0x102/0x170
[ 1233.344184][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1233.344184][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1233.344184][   T73]      netlink_rcv_skb+0x130/0x360
[ 1233.344184][   T73]      netlink_unicast+0x449/0x710
[ 1233.344184][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1233.344184][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1233.344184][   T73]      ___sys_sendmsg+0xee/0x170
[ 1233.344184][   T73]      __sys_sendmsg+0xcd/0x170
[ 1233.344184][   T73]      do_syscall_64+0xc6/0x1e0
[ 1233.344184][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1233.344184][   T73] 
[ 1233.345893][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1233.345893][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1233.345893][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1233.345893][   T73]      ipv6_find_idev+0x102/0x170
[ 1233.345893][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1233.345893][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1233.345893][   T73]      netlink_rcv_skb+0x130/0x360
[ 1233.345893][   T73]      netlink_unicast+0x449/0x710
[ 1233.345893][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1233.345893][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1233.345893][   T73]      ___sys_sendmsg+0xee/0x170
[ 1233.345893][   T73]      __sys_sendmsg+0xcd/0x170
[ 1233.345893][   T73]      do_syscall_64+0xc6/0x1e0
[ 1233.345893][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1233.345893][   T73] 
[ 1243.471795][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1243.472284][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1243.472284][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1243.472284][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1243.472284][   T73]      fib6_nh_init+0xa22/0x1580
[ 1243.472284][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1243.472284][   T73]      ip6_route_add+0x1c/0x140
[ 1243.472284][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1243.472284][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1243.472284][   T73]      netlink_rcv_skb+0x130/0x360
[ 1243.472284][   T73]      netlink_unicast+0x449/0x710
[ 1243.472284][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1243.472284][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1243.472284][   T73]      ___sys_sendmsg+0xee/0x170
[ 1243.472284][   T73]      __sys_sendmsg+0xcd/0x170
[ 1243.472284][   T73]      do_syscall_64+0xc6/0x1e0
[ 1243.472284][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1243.472284][   T73] 
[ 1243.474184][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1243.474184][   T73]      dst_init+0x84/0x4a0
[ 1243.474184][   T73]      dst_alloc+0x97/0x150
[ 1243.474184][   T73]      ip6_dst_alloc+0x23/0x90
[ 1243.474184][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1243.474184][   T73]      ip6_pol_route+0x56f/0x840
[ 1243.474184][   T73]      fib6_rule_lookup+0x456/0x630
[ 1243.474184][   T73]      ip6_route_input+0x59c/0xa50
[ 1243.474184][   T73]      ipv6_rcv+0x397/0x810
[ 1243.474184][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1243.474184][   T73]      process_backlog+0x101/0x620
[ 1243.474184][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1243.474184][   T73]      net_rx_action+0x495/0xbe0
[ 1243.474184][   T73]      __do_softirq+0x1b5/0x7f6
[ 1243.474184][   T73] 
[ 1243.475814][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1243.475814][   T73]      netdev_get_by_index+0x5e/0x80
[ 1243.475814][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1243.475814][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1243.475814][   T73]      ip6_route_add+0x1c/0x140
[ 1243.475814][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1243.475814][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1243.475814][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1243.475814][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1243.475814][   T73]      netlink_rcv_skb+0x130/0x360
[ 1243.475814][   T73]      netlink_unicast+0x449/0x710
[ 1243.475814][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1243.475814][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1243.475814][   T73]      ___sys_sendmsg+0xee/0x170
[ 1243.475814][   T73]      __sys_sendmsg+0xcd/0x170
[ 1243.475814][   T73]      do_syscall_64+0xc6/0x1e0
[ 1243.475814][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1243.475814][   T73] 
[ 1243.477827][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1243.477827][   T73]      netdev_get_by_index+0x5e/0x80
[ 1243.477827][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1243.477827][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1243.477827][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1243.477827][   T73]      ipv6_add_addr+0x411/0x2000
[ 1243.477827][   T73]      inet6_addr_add+0x30e/0xa40
[ 1243.477827][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1243.477827][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1243.477827][   T73]      netlink_rcv_skb+0x130/0x360
[ 1243.477827][   T73]      netlink_unicast+0x449/0x710
[ 1243.477827][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1243.477827][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1243.477827][   T73]      ___sys_sendmsg+0xee/0x170
[ 1243.477827][   T73]      __sys_sendmsg+0xcd/0x170
[ 1243.477827][   T73]      do_syscall_64+0xc6/0x1e0
[ 1243.477827][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1243.477827][   T73] 
[ 1243.479860][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1243.479860][   T73]      netdev_get_by_index+0x5e/0x80
[ 1243.479860][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1243.479860][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1243.479860][   T73]      ip6_route_add+0x1c/0x140
[ 1243.479860][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1243.479860][   T73]      addrconf_add_dev+0xe2/0x170
[ 1243.479860][   T73]      inet6_addr_add+0x12f/0xa40
[ 1243.479860][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1243.479860][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1243.479860][   T73]      netlink_rcv_skb+0x130/0x360
[ 1243.479860][   T73]      netlink_unicast+0x449/0x710
[ 1243.479860][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1243.479860][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1243.479860][   T73]      ___sys_sendmsg+0xee/0x170
[ 1243.479860][   T73]      __sys_sendmsg+0xcd/0x170
[ 1243.479860][   T73]      do_syscall_64+0xc6/0x1e0
[ 1243.479860][   T73] 
[ 1243.481842][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1243.481842][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1243.481842][   T73]      ipv6_find_idev+0x102/0x170
[ 1243.481842][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1243.481842][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1243.481842][   T73]      netlink_rcv_skb+0x130/0x360
[ 1243.481842][   T73]      netlink_unicast+0x449/0x710
[ 1243.481842][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1243.481842][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1243.481842][   T73]      ___sys_sendmsg+0xee/0x170
[ 1243.481842][   T73]      __sys_sendmsg+0xcd/0x170
[ 1243.481842][   T73]      do_syscall_64+0xc6/0x1e0
[ 1243.481842][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1243.481842][   T73] 
[ 1243.483405][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1243.483405][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1243.483405][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1243.483405][   T73]      ipv6_find_idev+0x102/0x170
[ 1243.483405][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1243.483405][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1243.483405][   T73]      netlink_rcv_skb+0x130/0x360
[ 1243.483405][   T73]      netlink_unicast+0x449/0x710
[ 1243.483405][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1243.483405][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1243.483405][   T73]      ___sys_sendmsg+0xee/0x170
[ 1243.483405][   T73]      __sys_sendmsg+0xcd/0x170
[ 1243.483405][   T73]      do_syscall_64+0xc6/0x1e0
[ 1243.483405][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1243.483405][   T73] 
[ 1243.485125][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1243.485408][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1243.485408][   T73]      netdev_get_by_index+0x5e/0x80
[ 1243.485408][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1243.485408][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1243.485408][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1243.485408][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1243.485408][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1243.485408][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1243.485408][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1243.485408][   T73]      addrconf_dad_begin+0x310/0x670
[ 1243.485408][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1243.485408][   T73]      process_one_work+0x84d/0x18a0
[ 1243.485408][   T73]      worker_thread+0x587/0xd30
[ 1243.485408][   T73]      kthread+0x28a/0x350
[ 1243.485408][   T73]      ret_from_fork+0x31/0x70
[ 1243.485408][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1243.485408][   T73] 
[ 1243.487319][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1243.487319][   T73]      netdev_get_by_index+0x5e/0x80
[ 1243.487319][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1243.487319][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1243.487319][   T73]      ip6_route_add+0x1c/0x140
[ 1243.487319][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1243.487319][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1243.487319][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1243.487319][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1243.487319][   T73]      netlink_rcv_skb+0x130/0x360
[ 1243.487319][   T73]      netlink_unicast+0x449/0x710
[ 1243.487319][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1243.487319][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1243.487319][   T73]      ___sys_sendmsg+0xee/0x170
[ 1243.487319][   T73]      __sys_sendmsg+0xcd/0x170
[ 1243.487319][   T73]      do_syscall_64+0xc6/0x1e0
[ 1243.487319][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1243.487319][   T73] 
[ 1243.489351][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1243.489351][   T73]      netdev_get_by_index+0x5e/0x80
[ 1243.489351][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1243.489351][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1243.489351][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1243.489351][   T73]      ipv6_add_addr+0x411/0x2000
[ 1243.489351][   T73]      inet6_addr_add+0x30e/0xa40
[ 1243.489351][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1243.489351][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1243.489351][   T73]      netlink_rcv_skb+0x130/0x360
[ 1243.489351][   T73]      netlink_unicast+0x449/0x710
[ 1243.489351][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1243.489351][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1243.489351][   T73]      ___sys_sendmsg+0xee/0x170
[ 1243.489351][   T73]      __sys_sendmsg+0xcd/0x170
[ 1243.489351][   T73]      do_syscall_64+0xc6/0x1e0
[ 1243.489351][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1243.489351][   T73] 
[ 1243.491346][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1243.491346][   T73]      netdev_get_by_index+0x5e/0x80
[ 1243.491346][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1243.491346][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1243.491346][   T73]      ip6_route_add+0x1c/0x140
[ 1243.491346][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1243.491346][   T73]      addrconf_add_dev+0xe2/0x170
[ 1243.491346][   T73]      inet6_addr_add+0x12f/0xa40
[ 1243.491346][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1243.491346][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1243.491346][   T73]      netlink_rcv_skb+0x130/0x360
[ 1243.491346][   T73]      netlink_unicast+0x449/0x710
[ 1243.491346][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1243.491346][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1243.491346][   T73]      ___sys_sendmsg+0xee/0x170
[ 1243.491346][   T73]      __sys_sendmsg+0xcd/0x170
[ 1243.491346][   T73]      do_syscall_64+0xc6/0x1e0
[ 1243.491346][   T73] 
[ 1243.493304][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1243.493304][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1243.493304][   T73]      ipv6_find_idev+0x102/0x170
[ 1243.493304][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1243.493304][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1243.493304][   T73]      netlink_rcv_skb+0x130/0x360
[ 1243.493304][   T73]      netlink_unicast+0x449/0x710
[ 1243.493304][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1243.493304][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1243.493304][   T73]      ___sys_sendmsg+0xee/0x170
[ 1243.493304][   T73]      __sys_sendmsg+0xcd/0x170
[ 1243.493304][   T73]      do_syscall_64+0xc6/0x1e0
[ 1243.493304][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1243.493304][   T73] 
[ 1243.494838][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1243.494838][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1243.494838][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1243.494838][   T73]      ipv6_find_idev+0x102/0x170
[ 1243.494838][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1243.494838][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1243.494838][   T73]      netlink_rcv_skb+0x130/0x360
[ 1243.494838][   T73]      netlink_unicast+0x449/0x710
[ 1243.494838][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1243.494838][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1243.494838][   T73]      ___sys_sendmsg+0xee/0x170
[ 1243.494838][   T73]      __sys_sendmsg+0xcd/0x170
[ 1243.494838][   T73]      do_syscall_64+0xc6/0x1e0
[ 1243.494838][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1243.494838][   T73] 
[ 1243.496513][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1243.496790][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1243.496790][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1243.496790][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1243.496790][   T73]      fib6_nh_init+0xa22/0x1580
[ 1243.496790][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1243.496790][   T73]      ip6_route_add+0x1c/0x140
[ 1243.496790][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1243.496790][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1243.496790][   T73]      netlink_rcv_skb+0x130/0x360
[ 1243.496790][   T73]      netlink_unicast+0x449/0x710
[ 1243.496790][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1243.496790][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1243.496790][   T73]      ___sys_sendmsg+0xee/0x170
[ 1243.496790][   T73]      __sys_sendmsg+0xcd/0x170
[ 1243.496790][   T73]      do_syscall_64+0xc6/0x1e0
[ 1243.496790][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1243.496790][   T73] 
[ 1243.498787][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1243.498787][   T73]      dst_init+0x84/0x4a0
[ 1243.498787][   T73]      dst_alloc+0x97/0x150
[ 1243.498787][   T73]      ip6_dst_alloc+0x23/0x90
[ 1243.498787][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1243.498787][   T73]      ip6_pol_route+0x56f/0x840
[ 1243.498787][   T73]      fib6_rule_lookup+0x456/0x630
[ 1243.498787][   T73]      ip6_route_input+0x59c/0xa50
[ 1243.498787][   T73]      ipv6_rcv+0x397/0x810
[ 1243.498787][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1243.498787][   T73]      process_backlog+0x101/0x620
[ 1243.498787][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1243.498787][   T73]      net_rx_action+0x495/0xbe0
[ 1243.498787][   T73]      __do_softirq+0x1b5/0x7f6
[ 1243.498787][   T73] 
[ 1243.500603][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1243.500603][   T73]      netdev_get_by_index+0x5e/0x80
[ 1243.500603][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1243.500603][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1243.500603][   T73]      ip6_route_add+0x1c/0x140
[ 1243.500603][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1243.500603][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1243.500603][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1243.500603][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1243.500603][   T73]      netlink_rcv_skb+0x130/0x360
[ 1243.500603][   T73]      netlink_unicast+0x449/0x710
[ 1243.500603][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1243.500603][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1243.500603][   T73]      ___sys_sendmsg+0xee/0x170
[ 1243.500603][   T73]      __sys_sendmsg+0xcd/0x170
[ 1243.500603][   T73]      do_syscall_64+0xc6/0x1e0
[ 1243.500603][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1243.500603][   T73] 
[ 1243.502777][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1243.502777][   T73]      netdev_get_by_index+0x5e/0x80
[ 1243.502777][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1243.502777][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1243.502777][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1243.502777][   T73]      ipv6_add_addr+0x411/0x2000
[ 1243.502777][   T73]      inet6_addr_add+0x30e/0xa40
[ 1243.502777][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1243.502777][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1243.502777][   T73]      netlink_rcv_skb+0x130/0x360
[ 1243.502777][   T73]      netlink_unicast+0x449/0x710
[ 1243.502777][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1243.502777][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1243.502777][   T73]      ___sys_sendmsg+0xee/0x170
[ 1243.502777][   T73]      __sys_sendmsg+0xcd/0x170
[ 1243.502777][   T73]      do_syscall_64+0xc6/0x1e0
[ 1243.502777][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1243.502777][   T73] 
[ 1243.505025][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1243.505025][   T73]      netdev_get_by_index+0x5e/0x80
[ 1243.505025][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1243.505025][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1243.505025][   T73]      ip6_route_add+0x1c/0x140
[ 1243.505025][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1243.505025][   T73]      addrconf_add_dev+0xe2/0x170
[ 1243.505025][   T73]      inet6_addr_add+0x12f/0xa40
[ 1243.505025][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1243.505025][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1243.505025][   T73]      netlink_rcv_skb+0x130/0x360
[ 1243.505025][   T73]      netlink_unicast+0x449/0x710
[ 1243.505025][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1243.505025][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1243.505025][   T73]      ___sys_sendmsg+0xee/0x170
[ 1243.505025][   T73]      __sys_sendmsg+0xcd/0x170
[ 1243.505025][   T73]      do_syscall_64+0xc6/0x1e0
[ 1243.505025][   T73] 
[ 1243.507163][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1243.507163][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1243.507163][   T73]      ipv6_find_idev+0x102/0x170
[ 1243.507163][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1243.507163][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1243.507163][   T73]      netlink_rcv_skb+0x130/0x360
[ 1243.507163][   T73]      netlink_unicast+0x449/0x710
[ 1243.507163][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1243.507163][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1243.507163][   T73]      ___sys_sendmsg+0xee/0x170
[ 1243.507163][   T73]      __sys_sendmsg+0xcd/0x170
[ 1243.507163][   T73]      do_syscall_64+0xc6/0x1e0
[ 1243.507163][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1243.507163][   T73] 
[ 1243.508945][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1243.508945][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1243.508945][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1243.508945][   T73]      ipv6_find_idev+0x102/0x170
[ 1243.508945][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1243.508945][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1243.508945][   T73]      netlink_rcv_skb+0x130/0x360
[ 1243.508945][   T73]      netlink_unicast+0x449/0x710
[ 1243.508945][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1243.508945][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1243.508945][   T73]      ___sys_sendmsg+0xee/0x170
[ 1243.508945][   T73]      __sys_sendmsg+0xcd/0x170
[ 1243.508945][   T73]      do_syscall_64+0xc6/0x1e0
[ 1243.508945][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1243.508945][   T73] 
[ 1243.510813][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1243.511092][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1243.511092][   T73]      netdev_get_by_index+0x5e/0x80
[ 1243.511092][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1243.511092][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1243.511092][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1243.511092][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1243.511092][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1243.511092][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1243.511092][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1243.511092][   T73]      addrconf_dad_begin+0x310/0x670
[ 1243.511092][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1243.511092][   T73]      process_one_work+0x84d/0x18a0
[ 1243.511092][   T73]      worker_thread+0x587/0xd30
[ 1243.511092][   T73]      kthread+0x28a/0x350
[ 1243.511092][   T73]      ret_from_fork+0x31/0x70
[ 1243.511092][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1243.511092][   T73] 
[ 1243.513244][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1243.513244][   T73]      netdev_get_by_index+0x5e/0x80
[ 1243.513244][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1243.513244][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1243.513244][   T73]      ip6_route_add+0x1c/0x140
[ 1243.513244][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1243.513244][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1243.513244][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1243.513244][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1243.513244][   T73]      netlink_rcv_skb+0x130/0x360
[ 1243.513244][   T73]      netlink_unicast+0x449/0x710
[ 1243.513244][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1243.513244][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1243.513244][   T73]      ___sys_sendmsg+0xee/0x170
[ 1243.513244][   T73]      __sys_sendmsg+0xcd/0x170
[ 1243.513244][   T73]      do_syscall_64+0xc6/0x1e0
[ 1243.513244][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1243.513244][   T73] 
[ 1243.516002][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1243.516002][   T73]      netdev_get_by_index+0x5e/0x80
[ 1243.516002][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1243.516002][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1243.516002][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1243.516002][   T73]      ipv6_add_addr+0x411/0x2000
[ 1243.516002][   T73]      inet6_addr_add+0x30e/0xa40
[ 1243.516002][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1243.516002][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1243.516002][   T73]      netlink_rcv_skb+0x130/0x360
[ 1243.516002][   T73]      netlink_unicast+0x449/0x710
[ 1243.516002][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1243.516002][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1243.516002][   T73]      ___sys_sendmsg+0xee/0x170
[ 1243.516002][   T73]      __sys_sendmsg+0xcd/0x170
[ 1243.516002][   T73]      do_syscall_64+0xc6/0x1e0
[ 1243.516002][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1243.516002][   T73] 
[ 1243.518327][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1243.518327][   T73]      netdev_get_by_index+0x5e/0x80
[ 1243.518327][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1243.518327][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1243.518327][   T73]      ip6_route_add+0x1c/0x140
[ 1243.518327][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1243.518327][   T73]      addrconf_add_dev+0xe2/0x170
[ 1243.518327][   T73]      inet6_addr_add+0x12f/0xa40
[ 1243.518327][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1243.518327][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1243.518327][   T73]      netlink_rcv_skb+0x130/0x360
[ 1243.518327][   T73]      netlink_unicast+0x449/0x710
[ 1243.518327][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1243.518327][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1243.518327][   T73]      ___sys_sendmsg+0xee/0x170
[ 1243.518327][   T73]      __sys_sendmsg+0xcd/0x170
[ 1243.518327][   T73]      do_syscall_64+0xc6/0x1e0
[ 1243.518327][   T73] 
[ 1243.520557][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1243.520557][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1243.520557][   T73]      ipv6_find_idev+0x102/0x170
[ 1243.520557][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1243.520557][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1243.520557][   T73]      netlink_rcv_skb+0x130/0x360
[ 1243.520557][   T73]      netlink_unicast+0x449/0x710
[ 1243.520557][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1243.520557][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1243.520557][   T73]      ___sys_sendmsg+0xee/0x170
[ 1243.520557][   T73]      __sys_sendmsg+0xcd/0x170
[ 1243.520557][   T73]      do_syscall_64+0xc6/0x1e0
[ 1243.520557][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1243.520557][   T73] 
[ 1243.522226][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1243.522226][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1243.522226][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1243.522226][   T73]      ipv6_find_idev+0x102/0x170
[ 1243.522226][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1243.522226][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1243.522226][   T73]      netlink_rcv_skb+0x130/0x360
[ 1243.522226][   T73]      netlink_unicast+0x449/0x710
[ 1243.522226][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1243.522226][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1243.522226][   T73]      ___sys_sendmsg+0xee/0x170
[ 1243.522226][   T73]      __sys_sendmsg+0xcd/0x170
[ 1243.522226][   T73]      do_syscall_64+0xc6/0x1e0
[ 1243.522226][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1243.522226][   T73] 
[ 1253.631693][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1253.632193][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1253.632193][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1253.632193][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1253.632193][   T73]      fib6_nh_init+0xa22/0x1580
[ 1253.632193][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1253.632193][   T73]      ip6_route_add+0x1c/0x140
[ 1253.632193][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1253.632193][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1253.632193][   T73]      netlink_rcv_skb+0x130/0x360
[ 1253.632193][   T73]      netlink_unicast+0x449/0x710
[ 1253.632193][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1253.632193][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1253.632193][   T73]      ___sys_sendmsg+0xee/0x170
[ 1253.632193][   T73]      __sys_sendmsg+0xcd/0x170
[ 1253.632193][   T73]      do_syscall_64+0xc6/0x1e0
[ 1253.632193][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1253.632193][   T73] 
[ 1253.634101][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1253.634101][   T73]      dst_init+0x84/0x4a0
[ 1253.634101][   T73]      dst_alloc+0x97/0x150
[ 1253.634101][   T73]      ip6_dst_alloc+0x23/0x90
[ 1253.634101][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1253.634101][   T73]      ip6_pol_route+0x56f/0x840
[ 1253.634101][   T73]      fib6_rule_lookup+0x456/0x630
[ 1253.634101][   T73]      ip6_route_input+0x59c/0xa50
[ 1253.634101][   T73]      ipv6_rcv+0x397/0x810
[ 1253.634101][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1253.634101][   T73]      process_backlog+0x101/0x620
[ 1253.634101][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1253.634101][   T73]      net_rx_action+0x495/0xbe0
[ 1253.634101][   T73]      __do_softirq+0x1b5/0x7f6
[ 1253.634101][   T73] 
[ 1253.635764][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1253.635764][   T73]      netdev_get_by_index+0x5e/0x80
[ 1253.635764][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1253.635764][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1253.635764][   T73]      ip6_route_add+0x1c/0x140
[ 1253.635764][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1253.635764][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1253.635764][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1253.635764][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1253.635764][   T73]      netlink_rcv_skb+0x130/0x360
[ 1253.635764][   T73]      netlink_unicast+0x449/0x710
[ 1253.635764][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1253.635764][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1253.635764][   T73]      ___sys_sendmsg+0xee/0x170
[ 1253.635764][   T73]      __sys_sendmsg+0xcd/0x170
[ 1253.635764][   T73]      do_syscall_64+0xc6/0x1e0
[ 1253.635764][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1253.635764][   T73] 
[ 1253.637772][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1253.637772][   T73]      netdev_get_by_index+0x5e/0x80
[ 1253.637772][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1253.637772][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1253.637772][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1253.637772][   T73]      ipv6_add_addr+0x411/0x2000
[ 1253.637772][   T73]      inet6_addr_add+0x30e/0xa40
[ 1253.637772][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1253.637772][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1253.637772][   T73]      netlink_rcv_skb+0x130/0x360
[ 1253.637772][   T73]      netlink_unicast+0x449/0x710
[ 1253.637772][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1253.637772][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1253.637772][   T73]      ___sys_sendmsg+0xee/0x170
[ 1253.637772][   T73]      __sys_sendmsg+0xcd/0x170
[ 1253.637772][   T73]      do_syscall_64+0xc6/0x1e0
[ 1253.637772][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1253.637772][   T73] 
[ 1253.639784][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1253.639784][   T73]      netdev_get_by_index+0x5e/0x80
[ 1253.639784][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1253.639784][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1253.639784][   T73]      ip6_route_add+0x1c/0x140
[ 1253.639784][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1253.639784][   T73]      addrconf_add_dev+0xe2/0x170
[ 1253.639784][   T73]      inet6_addr_add+0x12f/0xa40
[ 1253.639784][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1253.639784][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1253.639784][   T73]      netlink_rcv_skb+0x130/0x360
[ 1253.639784][   T73]      netlink_unicast+0x449/0x710
[ 1253.639784][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1253.639784][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1253.639784][   T73]      ___sys_sendmsg+0xee/0x170
[ 1253.639784][   T73]      __sys_sendmsg+0xcd/0x170
[ 1253.639784][   T73]      do_syscall_64+0xc6/0x1e0
[ 1253.639784][   T73] 
[ 1253.641743][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1253.641743][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1253.641743][   T73]      ipv6_find_idev+0x102/0x170
[ 1253.641743][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1253.641743][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1253.641743][   T73]      netlink_rcv_skb+0x130/0x360
[ 1253.641743][   T73]      netlink_unicast+0x449/0x710
[ 1253.641743][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1253.641743][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1253.641743][   T73]      ___sys_sendmsg+0xee/0x170
[ 1253.641743][   T73]      __sys_sendmsg+0xcd/0x170
[ 1253.641743][   T73]      do_syscall_64+0xc6/0x1e0
[ 1253.641743][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1253.641743][   T73] 
[ 1253.643275][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1253.643275][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1253.643275][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1253.643275][   T73]      ipv6_find_idev+0x102/0x170
[ 1253.643275][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1253.643275][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1253.643275][   T73]      netlink_rcv_skb+0x130/0x360
[ 1253.643275][   T73]      netlink_unicast+0x449/0x710
[ 1253.643275][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1253.643275][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1253.643275][   T73]      ___sys_sendmsg+0xee/0x170
[ 1253.643275][   T73]      __sys_sendmsg+0xcd/0x170
[ 1253.643275][   T73]      do_syscall_64+0xc6/0x1e0
[ 1253.643275][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1253.643275][   T73] 
[ 1253.644968][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1253.645247][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1253.645247][   T73]      netdev_get_by_index+0x5e/0x80
[ 1253.645247][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1253.645247][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1253.645247][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1253.645247][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1253.645247][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1253.645247][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1253.645247][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1253.645247][   T73]      addrconf_dad_begin+0x310/0x670
[ 1253.645247][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1253.645247][   T73]      process_one_work+0x84d/0x18a0
[ 1253.645247][   T73]      worker_thread+0x587/0xd30
[ 1253.645247][   T73]      kthread+0x28a/0x350
[ 1253.645247][   T73]      ret_from_fork+0x31/0x70
[ 1253.645247][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1253.645247][   T73] 
[ 1253.647154][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1253.647154][   T73]      netdev_get_by_index+0x5e/0x80
[ 1253.647154][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1253.647154][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1253.647154][   T73]      ip6_route_add+0x1c/0x140
[ 1253.647154][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1253.647154][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1253.647154][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1253.647154][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1253.647154][   T73]      netlink_rcv_skb+0x130/0x360
[ 1253.647154][   T73]      netlink_unicast+0x449/0x710
[ 1253.647154][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1253.647154][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1253.647154][   T73]      ___sys_sendmsg+0xee/0x170
[ 1253.647154][   T73]      __sys_sendmsg+0xcd/0x170
[ 1253.647154][   T73]      do_syscall_64+0xc6/0x1e0
[ 1253.647154][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1253.647154][   T73] 
[ 1253.649158][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1253.649158][   T73]      netdev_get_by_index+0x5e/0x80
[ 1253.649158][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1253.649158][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1253.649158][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1253.649158][   T73]      ipv6_add_addr+0x411/0x2000
[ 1253.649158][   T73]      inet6_addr_add+0x30e/0xa40
[ 1253.649158][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1253.649158][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1253.649158][   T73]      netlink_rcv_skb+0x130/0x360
[ 1253.649158][   T73]      netlink_unicast+0x449/0x710
[ 1253.649158][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1253.649158][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1253.649158][   T73]      ___sys_sendmsg+0xee/0x170
[ 1253.649158][   T73]      __sys_sendmsg+0xcd/0x170
[ 1253.649158][   T73]      do_syscall_64+0xc6/0x1e0
[ 1253.649158][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1253.649158][   T73] 
[ 1253.651163][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1253.651163][   T73]      netdev_get_by_index+0x5e/0x80
[ 1253.651163][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1253.651163][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1253.651163][   T73]      ip6_route_add+0x1c/0x140
[ 1253.651163][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1253.651163][   T73]      addrconf_add_dev+0xe2/0x170
[ 1253.651163][   T73]      inet6_addr_add+0x12f/0xa40
[ 1253.651163][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1253.651163][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1253.651163][   T73]      netlink_rcv_skb+0x130/0x360
[ 1253.651163][   T73]      netlink_unicast+0x449/0x710
[ 1253.651163][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1253.651163][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1253.651163][   T73]      ___sys_sendmsg+0xee/0x170
[ 1253.651163][   T73]      __sys_sendmsg+0xcd/0x170
[ 1253.651163][   T73]      do_syscall_64+0xc6/0x1e0
[ 1253.651163][   T73] 
[ 1253.653135][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1253.653135][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1253.653135][   T73]      ipv6_find_idev+0x102/0x170
[ 1253.653135][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1253.653135][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1253.653135][   T73]      netlink_rcv_skb+0x130/0x360
[ 1253.653135][   T73]      netlink_unicast+0x449/0x710
[ 1253.653135][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1253.653135][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1253.653135][   T73]      ___sys_sendmsg+0xee/0x170
[ 1253.653135][   T73]      __sys_sendmsg+0xcd/0x170
[ 1253.653135][   T73]      do_syscall_64+0xc6/0x1e0
[ 1253.653135][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1253.653135][   T73] 
[ 1253.654679][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1253.654679][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1253.654679][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1253.654679][   T73]      ipv6_find_idev+0x102/0x170
[ 1253.654679][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1253.654679][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1253.654679][   T73]      netlink_rcv_skb+0x130/0x360
[ 1253.654679][   T73]      netlink_unicast+0x449/0x710
[ 1253.654679][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1253.654679][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1253.654679][   T73]      ___sys_sendmsg+0xee/0x170
[ 1253.654679][   T73]      __sys_sendmsg+0xcd/0x170
[ 1253.654679][   T73]      do_syscall_64+0xc6/0x1e0
[ 1253.654679][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1253.654679][   T73] 
[ 1253.656360][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1253.656628][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1253.656628][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1253.656628][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1253.656628][   T73]      fib6_nh_init+0xa22/0x1580
[ 1253.656628][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1253.656628][   T73]      ip6_route_add+0x1c/0x140
[ 1253.656628][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1253.656628][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1253.656628][   T73]      netlink_rcv_skb+0x130/0x360
[ 1253.656628][   T73]      netlink_unicast+0x449/0x710
[ 1253.656628][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1253.656628][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1253.656628][   T73]      ___sys_sendmsg+0xee/0x170
[ 1253.656628][   T73]      __sys_sendmsg+0xcd/0x170
[ 1253.656628][   T73]      do_syscall_64+0xc6/0x1e0
[ 1253.656628][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1253.656628][   T73] 
[ 1253.658645][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1253.658645][   T73]      dst_init+0x84/0x4a0
[ 1253.658645][   T73]      dst_alloc+0x97/0x150
[ 1253.658645][   T73]      ip6_dst_alloc+0x23/0x90
[ 1253.658645][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1253.658645][   T73]      ip6_pol_route+0x56f/0x840
[ 1253.658645][   T73]      fib6_rule_lookup+0x456/0x630
[ 1253.658645][   T73]      ip6_route_input+0x59c/0xa50
[ 1253.658645][   T73]      ipv6_rcv+0x397/0x810
[ 1253.658645][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1253.658645][   T73]      process_backlog+0x101/0x620
[ 1253.658645][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1253.658645][   T73]      net_rx_action+0x495/0xbe0
[ 1253.658645][   T73]      __do_softirq+0x1b5/0x7f6
[ 1253.658645][   T73] 
[ 1253.660477][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1253.660477][   T73]      netdev_get_by_index+0x5e/0x80
[ 1253.660477][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1253.660477][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1253.660477][   T73]      ip6_route_add+0x1c/0x140
[ 1253.660477][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1253.660477][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1253.660477][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1253.660477][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1253.660477][   T73]      netlink_rcv_skb+0x130/0x360
[ 1253.660477][   T73]      netlink_unicast+0x449/0x710
[ 1253.660477][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1253.660477][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1253.660477][   T73]      ___sys_sendmsg+0xee/0x170
[ 1253.660477][   T73]      __sys_sendmsg+0xcd/0x170
[ 1253.660477][   T73]      do_syscall_64+0xc6/0x1e0
[ 1253.660477][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1253.660477][   T73] 
[ 1253.662708][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1253.662708][   T73]      netdev_get_by_index+0x5e/0x80
[ 1253.662708][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1253.662708][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1253.662708][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1253.662708][   T73]      ipv6_add_addr+0x411/0x2000
[ 1253.662708][   T73]      inet6_addr_add+0x30e/0xa40
[ 1253.662708][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1253.662708][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1253.662708][   T73]      netlink_rcv_skb+0x130/0x360
[ 1253.662708][   T73]      netlink_unicast+0x449/0x710
[ 1253.662708][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1253.662708][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1253.662708][   T73]      ___sys_sendmsg+0xee/0x170
[ 1253.662708][   T73]      __sys_sendmsg+0xcd/0x170
[ 1253.662708][   T73]      do_syscall_64+0xc6/0x1e0
[ 1253.662708][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1253.662708][   T73] 
[ 1253.665020][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1253.665020][   T73]      netdev_get_by_index+0x5e/0x80
[ 1253.665020][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1253.665020][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1253.665020][   T73]      ip6_route_add+0x1c/0x140
[ 1253.665020][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1253.665020][   T73]      addrconf_add_dev+0xe2/0x170
[ 1253.665020][   T73]      inet6_addr_add+0x12f/0xa40
[ 1253.665020][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1253.665020][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1253.665020][   T73]      netlink_rcv_skb+0x130/0x360
[ 1253.665020][   T73]      netlink_unicast+0x449/0x710
[ 1253.665020][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1253.665020][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1253.665020][   T73]      ___sys_sendmsg+0xee/0x170
[ 1253.665020][   T73]      __sys_sendmsg+0xcd/0x170
[ 1253.665020][   T73]      do_syscall_64+0xc6/0x1e0
[ 1253.665020][   T73] 
[ 1253.667151][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1253.667151][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1253.667151][   T73]      ipv6_find_idev+0x102/0x170
[ 1253.667151][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1253.667151][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1253.667151][   T73]      netlink_rcv_skb+0x130/0x360
[ 1253.667151][   T73]      netlink_unicast+0x449/0x710
[ 1253.667151][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1253.667151][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1253.667151][   T73]      ___sys_sendmsg+0xee/0x170
[ 1253.667151][   T73]      __sys_sendmsg+0xcd/0x170
[ 1253.667151][   T73]      do_syscall_64+0xc6/0x1e0
[ 1253.667151][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1253.667151][   T73] 
[ 1253.668871][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1253.668871][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1253.668871][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1253.668871][   T73]      ipv6_find_idev+0x102/0x170
[ 1253.668871][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1253.668871][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1253.668871][   T73]      netlink_rcv_skb+0x130/0x360
[ 1253.668871][   T73]      netlink_unicast+0x449/0x710
[ 1253.668871][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1253.668871][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1253.668871][   T73]      ___sys_sendmsg+0xee/0x170
[ 1253.668871][   T73]      __sys_sendmsg+0xcd/0x170
[ 1253.668871][   T73]      do_syscall_64+0xc6/0x1e0
[ 1253.668871][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1253.668871][   T73] 
[ 1253.670690][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1253.670966][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1253.670966][   T73]      netdev_get_by_index+0x5e/0x80
[ 1253.670966][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1253.670966][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1253.670966][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1253.670966][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1253.670966][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1253.670966][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1253.670966][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1253.670966][   T73]      addrconf_dad_begin+0x310/0x670
[ 1253.670966][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1253.670966][   T73]      process_one_work+0x84d/0x18a0
[ 1253.670966][   T73]      worker_thread+0x587/0xd30
[ 1253.670966][   T73]      kthread+0x28a/0x350
[ 1253.670966][   T73]      ret_from_fork+0x31/0x70
[ 1253.670966][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1253.670966][   T73] 
[ 1253.673210][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1253.673210][   T73]      netdev_get_by_index+0x5e/0x80
[ 1253.673210][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1253.673210][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1253.673210][   T73]      ip6_route_add+0x1c/0x140
[ 1253.673210][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1253.673210][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1253.673210][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1253.673210][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1253.673210][   T73]      netlink_rcv_skb+0x130/0x360
[ 1253.673210][   T73]      netlink_unicast+0x449/0x710
[ 1253.673210][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1253.673210][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1253.673210][   T73]      ___sys_sendmsg+0xee/0x170
[ 1253.673210][   T73]      __sys_sendmsg+0xcd/0x170
[ 1253.673210][   T73]      do_syscall_64+0xc6/0x1e0
[ 1253.673210][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1253.673210][   T73] 
[ 1253.675456][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1253.675456][   T73]      netdev_get_by_index+0x5e/0x80
[ 1253.675456][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1253.675456][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1253.675456][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1253.675456][   T73]      ipv6_add_addr+0x411/0x2000
[ 1253.675456][   T73]      inet6_addr_add+0x30e/0xa40
[ 1253.675456][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1253.675456][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1253.675456][   T73]      netlink_rcv_skb+0x130/0x360
[ 1253.675456][   T73]      netlink_unicast+0x449/0x710
[ 1253.675456][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1253.675456][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1253.675456][   T73]      ___sys_sendmsg+0xee/0x170
[ 1253.675456][   T73]      __sys_sendmsg+0xcd/0x170
[ 1253.675456][   T73]      do_syscall_64+0xc6/0x1e0
[ 1253.675456][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1253.675456][   T73] 
[ 1253.677693][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1253.677693][   T73]      netdev_get_by_index+0x5e/0x80
[ 1253.677693][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1253.677693][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1253.677693][   T73]      ip6_route_add+0x1c/0x140
[ 1253.677693][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1253.677693][   T73]      addrconf_add_dev+0xe2/0x170
[ 1253.677693][   T73]      inet6_addr_add+0x12f/0xa40
[ 1253.677693][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1253.677693][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1253.677693][   T73]      netlink_rcv_skb+0x130/0x360
[ 1253.677693][   T73]      netlink_unicast+0x449/0x710
[ 1253.677693][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1253.677693][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1253.677693][   T73]      ___sys_sendmsg+0xee/0x170
[ 1253.677693][   T73]      __sys_sendmsg+0xcd/0x170
[ 1253.677693][   T73]      do_syscall_64+0xc6/0x1e0
[ 1253.677693][   T73] 
[ 1253.679869][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1253.679869][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1253.679869][   T73]      ipv6_find_idev+0x102/0x170
[ 1253.679869][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1253.679869][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1253.679869][   T73]      netlink_rcv_skb+0x130/0x360
[ 1253.679869][   T73]      netlink_unicast+0x449/0x710
[ 1253.679869][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1253.679869][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1253.679869][   T73]      ___sys_sendmsg+0xee/0x170
[ 1253.679869][   T73]      __sys_sendmsg+0xcd/0x170
[ 1253.679869][   T73]      do_syscall_64+0xc6/0x1e0
[ 1253.679869][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1253.679869][   T73] 
[ 1253.681530][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1253.681530][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1253.681530][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1253.681530][   T73]      ipv6_find_idev+0x102/0x170
[ 1253.681530][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1253.681530][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1253.681530][   T73]      netlink_rcv_skb+0x130/0x360
[ 1253.681530][   T73]      netlink_unicast+0x449/0x710
[ 1253.681530][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1253.681530][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1253.681530][   T73]      ___sys_sendmsg+0xee/0x170
[ 1253.681530][   T73]      __sys_sendmsg+0xcd/0x170
[ 1253.681530][   T73]      do_syscall_64+0xc6/0x1e0
[ 1253.681530][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1253.681530][   T73] 
[ 1263.919863][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1263.920308][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1263.920308][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1263.920308][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1263.920308][   T73]      fib6_nh_init+0xa22/0x1580
[ 1263.920308][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1263.920308][   T73]      ip6_route_add+0x1c/0x140
[ 1263.920308][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1263.920308][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1263.920308][   T73]      netlink_rcv_skb+0x130/0x360
[ 1263.920308][   T73]      netlink_unicast+0x449/0x710
[ 1263.920308][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1263.920308][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1263.920308][   T73]      ___sys_sendmsg+0xee/0x170
[ 1263.920308][   T73]      __sys_sendmsg+0xcd/0x170
[ 1263.920308][   T73]      do_syscall_64+0xc6/0x1e0
[ 1263.920308][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1263.920308][   T73] 
[ 1263.922215][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1263.922215][   T73]      dst_init+0x84/0x4a0
[ 1263.922215][   T73]      dst_alloc+0x97/0x150
[ 1263.922215][   T73]      ip6_dst_alloc+0x23/0x90
[ 1263.922215][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1263.922215][   T73]      ip6_pol_route+0x56f/0x840
[ 1263.922215][   T73]      fib6_rule_lookup+0x456/0x630
[ 1263.922215][   T73]      ip6_route_input+0x59c/0xa50
[ 1263.922215][   T73]      ipv6_rcv+0x397/0x810
[ 1263.922215][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1263.922215][   T73]      process_backlog+0x101/0x620
[ 1263.922215][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1263.922215][   T73]      net_rx_action+0x495/0xbe0
[ 1263.922215][   T73]      __do_softirq+0x1b5/0x7f6
[ 1263.922215][   T73] 
[ 1263.923849][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1263.923849][   T73]      netdev_get_by_index+0x5e/0x80
[ 1263.923849][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1263.923849][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1263.923849][   T73]      ip6_route_add+0x1c/0x140
[ 1263.923849][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1263.923849][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1263.923849][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1263.923849][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1263.923849][   T73]      netlink_rcv_skb+0x130/0x360
[ 1263.923849][   T73]      netlink_unicast+0x449/0x710
[ 1263.923849][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1263.923849][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1263.923849][   T73]      ___sys_sendmsg+0xee/0x170
[ 1263.923849][   T73]      __sys_sendmsg+0xcd/0x170
[ 1263.923849][   T73]      do_syscall_64+0xc6/0x1e0
[ 1263.923849][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1263.923849][   T73] 
[ 1263.925857][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1263.925857][   T73]      netdev_get_by_index+0x5e/0x80
[ 1263.925857][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1263.925857][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1263.925857][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1263.925857][   T73]      ipv6_add_addr+0x411/0x2000
[ 1263.925857][   T73]      inet6_addr_add+0x30e/0xa40
[ 1263.925857][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1263.925857][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1263.925857][   T73]      netlink_rcv_skb+0x130/0x360
[ 1263.925857][   T73]      netlink_unicast+0x449/0x710
[ 1263.925857][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1263.925857][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1263.925857][   T73]      ___sys_sendmsg+0xee/0x170
[ 1263.925857][   T73]      __sys_sendmsg+0xcd/0x170
[ 1263.925857][   T73]      do_syscall_64+0xc6/0x1e0
[ 1263.925857][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1263.925857][   T73] 
[ 1263.927856][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1263.927856][   T73]      netdev_get_by_index+0x5e/0x80
[ 1263.927856][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1263.927856][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1263.927856][   T73]      ip6_route_add+0x1c/0x140
[ 1263.927856][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1263.927856][   T73]      addrconf_add_dev+0xe2/0x170
[ 1263.927856][   T73]      inet6_addr_add+0x12f/0xa40
[ 1263.927856][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1263.927856][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1263.927856][   T73]      netlink_rcv_skb+0x130/0x360
[ 1263.927856][   T73]      netlink_unicast+0x449/0x710
[ 1263.927856][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1263.927856][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1263.927856][   T73]      ___sys_sendmsg+0xee/0x170
[ 1263.927856][   T73]      __sys_sendmsg+0xcd/0x170
[ 1263.927856][   T73]      do_syscall_64+0xc6/0x1e0
[ 1263.927856][   T73] 
[ 1263.929858][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1263.929858][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1263.929858][   T73]      ipv6_find_idev+0x102/0x170
[ 1263.929858][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1263.929858][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1263.929858][   T73]      netlink_rcv_skb+0x130/0x360
[ 1263.929858][   T73]      netlink_unicast+0x449/0x710
[ 1263.929858][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1263.929858][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1263.929858][   T73]      ___sys_sendmsg+0xee/0x170
[ 1263.929858][   T73]      __sys_sendmsg+0xcd/0x170
[ 1263.929858][   T73]      do_syscall_64+0xc6/0x1e0
[ 1263.929858][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1263.929858][   T73] 
[ 1263.931423][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1263.931423][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1263.931423][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1263.931423][   T73]      ipv6_find_idev+0x102/0x170
[ 1263.931423][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1263.931423][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1263.931423][   T73]      netlink_rcv_skb+0x130/0x360
[ 1263.931423][   T73]      netlink_unicast+0x449/0x710
[ 1263.931423][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1263.931423][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1263.931423][   T73]      ___sys_sendmsg+0xee/0x170
[ 1263.931423][   T73]      __sys_sendmsg+0xcd/0x170
[ 1263.931423][   T73]      do_syscall_64+0xc6/0x1e0
[ 1263.931423][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1263.931423][   T73] 
[ 1263.933142][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1263.933431][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1263.933431][   T73]      netdev_get_by_index+0x5e/0x80
[ 1263.933431][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1263.933431][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1263.933431][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1263.933431][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1263.933431][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1263.933431][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1263.933431][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1263.933431][   T73]      addrconf_dad_begin+0x310/0x670
[ 1263.933431][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1263.933431][   T73]      process_one_work+0x84d/0x18a0
[ 1263.933431][   T73]      worker_thread+0x587/0xd30
[ 1263.933431][   T73]      kthread+0x28a/0x350
[ 1263.933431][   T73]      ret_from_fork+0x31/0x70
[ 1263.933431][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1263.933431][   T73] 
[ 1263.935337][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1263.935337][   T73]      netdev_get_by_index+0x5e/0x80
[ 1263.935337][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1263.935337][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1263.935337][   T73]      ip6_route_add+0x1c/0x140
[ 1263.935337][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1263.935337][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1263.935337][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1263.935337][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1263.935337][   T73]      netlink_rcv_skb+0x130/0x360
[ 1263.935337][   T73]      netlink_unicast+0x449/0x710
[ 1263.935337][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1263.935337][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1263.935337][   T73]      ___sys_sendmsg+0xee/0x170
[ 1263.935337][   T73]      __sys_sendmsg+0xcd/0x170
[ 1263.935337][   T73]      do_syscall_64+0xc6/0x1e0
[ 1263.935337][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1263.935337][   T73] 
[ 1263.937329][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1263.937329][   T73]      netdev_get_by_index+0x5e/0x80
[ 1263.937329][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1263.937329][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1263.937329][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1263.937329][   T73]      ipv6_add_addr+0x411/0x2000
[ 1263.937329][   T73]      inet6_addr_add+0x30e/0xa40
[ 1263.937329][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1263.937329][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1263.937329][   T73]      netlink_rcv_skb+0x130/0x360
[ 1263.937329][   T73]      netlink_unicast+0x449/0x710
[ 1263.937329][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1263.937329][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1263.937329][   T73]      ___sys_sendmsg+0xee/0x170
[ 1263.937329][   T73]      __sys_sendmsg+0xcd/0x170
[ 1263.937329][   T73]      do_syscall_64+0xc6/0x1e0
[ 1263.937329][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1263.937329][   T73] 
[ 1263.939340][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1263.939340][   T73]      netdev_get_by_index+0x5e/0x80
[ 1263.939340][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1263.939340][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1263.939340][   T73]      ip6_route_add+0x1c/0x140
[ 1263.939340][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1263.939340][   T73]      addrconf_add_dev+0xe2/0x170
[ 1263.939340][   T73]      inet6_addr_add+0x12f/0xa40
[ 1263.939340][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1263.939340][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1263.939340][   T73]      netlink_rcv_skb+0x130/0x360
[ 1263.939340][   T73]      netlink_unicast+0x449/0x710
[ 1263.939340][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1263.939340][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1263.939340][   T73]      ___sys_sendmsg+0xee/0x170
[ 1263.939340][   T73]      __sys_sendmsg+0xcd/0x170
[ 1263.939340][   T73]      do_syscall_64+0xc6/0x1e0
[ 1263.939340][   T73] 
[ 1263.941308][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1263.941308][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1263.941308][   T73]      ipv6_find_idev+0x102/0x170
[ 1263.941308][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1263.941308][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1263.941308][   T73]      netlink_rcv_skb+0x130/0x360
[ 1263.941308][   T73]      netlink_unicast+0x449/0x710
[ 1263.941308][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1263.941308][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1263.941308][   T73]      ___sys_sendmsg+0xee/0x170
[ 1263.941308][   T73]      __sys_sendmsg+0xcd/0x170
[ 1263.941308][   T73]      do_syscall_64+0xc6/0x1e0
[ 1263.941308][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1263.941308][   T73] 
[ 1263.942848][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1263.942848][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1263.942848][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1263.942848][   T73]      ipv6_find_idev+0x102/0x170
[ 1263.942848][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1263.942848][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1263.942848][   T73]      netlink_rcv_skb+0x130/0x360
[ 1263.942848][   T73]      netlink_unicast+0x449/0x710
[ 1263.942848][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1263.942848][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1263.942848][   T73]      ___sys_sendmsg+0xee/0x170
[ 1263.942848][   T73]      __sys_sendmsg+0xcd/0x170
[ 1263.942848][   T73]      do_syscall_64+0xc6/0x1e0
[ 1263.942848][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1263.942848][   T73] 
[ 1263.944559][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1263.944835][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1263.944835][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1263.944835][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1263.944835][   T73]      fib6_nh_init+0xa22/0x1580
[ 1263.944835][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1263.944835][   T73]      ip6_route_add+0x1c/0x140
[ 1263.944835][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1263.944835][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1263.944835][   T73]      netlink_rcv_skb+0x130/0x360
[ 1263.944835][   T73]      netlink_unicast+0x449/0x710
[ 1263.944835][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1263.944835][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1263.944835][   T73]      ___sys_sendmsg+0xee/0x170
[ 1263.944835][   T73]      __sys_sendmsg+0xcd/0x170
[ 1263.944835][   T73]      do_syscall_64+0xc6/0x1e0
[ 1263.944835][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1263.944835][   T73] 
[ 1263.946841][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1263.946841][   T73]      dst_init+0x84/0x4a0
[ 1263.946841][   T73]      dst_alloc+0x97/0x150
[ 1263.946841][   T73]      ip6_dst_alloc+0x23/0x90
[ 1263.946841][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1263.946841][   T73]      ip6_pol_route+0x56f/0x840
[ 1263.946841][   T73]      fib6_rule_lookup+0x456/0x630
[ 1263.946841][   T73]      ip6_route_input+0x59c/0xa50
[ 1263.946841][   T73]      ipv6_rcv+0x397/0x810
[ 1263.946841][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1263.946841][   T73]      process_backlog+0x101/0x620
[ 1263.946841][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1263.946841][   T73]      net_rx_action+0x495/0xbe0
[ 1263.946841][   T73]      __do_softirq+0x1b5/0x7f6
[ 1263.946841][   T73] 
[ 1263.948723][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1263.948723][   T73]      netdev_get_by_index+0x5e/0x80
[ 1263.948723][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1263.948723][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1263.948723][   T73]      ip6_route_add+0x1c/0x140
[ 1263.948723][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1263.948723][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1263.948723][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1263.948723][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1263.948723][   T73]      netlink_rcv_skb+0x130/0x360
[ 1263.948723][   T73]      netlink_unicast+0x449/0x710
[ 1263.948723][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1263.948723][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1263.948723][   T73]      ___sys_sendmsg+0xee/0x170
[ 1263.948723][   T73]      __sys_sendmsg+0xcd/0x170
[ 1263.948723][   T73]      do_syscall_64+0xc6/0x1e0
[ 1263.948723][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1263.948723][   T73] 
[ 1263.950971][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1263.950971][   T73]      netdev_get_by_index+0x5e/0x80
[ 1263.950971][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1263.950971][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1263.950971][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1263.950971][   T73]      ipv6_add_addr+0x411/0x2000
[ 1263.950971][   T73]      inet6_addr_add+0x30e/0xa40
[ 1263.950971][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1263.950971][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1263.950971][   T73]      netlink_rcv_skb+0x130/0x360
[ 1263.950971][   T73]      netlink_unicast+0x449/0x710
[ 1263.950971][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1263.950971][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1263.950971][   T73]      ___sys_sendmsg+0xee/0x170
[ 1263.950971][   T73]      __sys_sendmsg+0xcd/0x170
[ 1263.950971][   T73]      do_syscall_64+0xc6/0x1e0
[ 1263.950971][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1263.950971][   T73] 
[ 1263.953153][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1263.953153][   T73]      netdev_get_by_index+0x5e/0x80
[ 1263.953153][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1263.953153][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1263.953153][   T73]      ip6_route_add+0x1c/0x140
[ 1263.953153][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1263.953153][   T73]      addrconf_add_dev+0xe2/0x170
[ 1263.953153][   T73]      inet6_addr_add+0x12f/0xa40
[ 1263.953153][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1263.953153][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1263.953153][   T73]      netlink_rcv_skb+0x130/0x360
[ 1263.953153][   T73]      netlink_unicast+0x449/0x710
[ 1263.953153][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1263.953153][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1263.953153][   T73]      ___sys_sendmsg+0xee/0x170
[ 1263.953153][   T73]      __sys_sendmsg+0xcd/0x170
[ 1263.953153][   T73]      do_syscall_64+0xc6/0x1e0
[ 1263.953153][   T73] 
[ 1263.955314][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1263.955314][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1263.955314][   T73]      ipv6_find_idev+0x102/0x170
[ 1263.955314][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1263.955314][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1263.955314][   T73]      netlink_rcv_skb+0x130/0x360
[ 1263.955314][   T73]      netlink_unicast+0x449/0x710
[ 1263.955314][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1263.955314][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1263.955314][   T73]      ___sys_sendmsg+0xee/0x170
[ 1263.955314][   T73]      __sys_sendmsg+0xcd/0x170
[ 1263.955314][   T73]      do_syscall_64+0xc6/0x1e0
[ 1263.955314][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1263.955314][   T73] 
[ 1263.957061][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1263.957061][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1263.957061][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1263.957061][   T73]      ipv6_find_idev+0x102/0x170
[ 1263.957061][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1263.957061][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1263.957061][   T73]      netlink_rcv_skb+0x130/0x360
[ 1263.957061][   T73]      netlink_unicast+0x449/0x710
[ 1263.957061][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1263.957061][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1263.957061][   T73]      ___sys_sendmsg+0xee/0x170
[ 1263.957061][   T73]      __sys_sendmsg+0xcd/0x170
[ 1263.957061][   T73]      do_syscall_64+0xc6/0x1e0
[ 1263.957061][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1263.957061][   T73] 
[ 1263.958880][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1263.959224][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1263.959224][   T73]      netdev_get_by_index+0x5e/0x80
[ 1263.959224][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1263.959224][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1263.959224][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1263.959224][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1263.959224][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1263.959224][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1263.959224][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1263.959224][   T73]      addrconf_dad_begin+0x310/0x670
[ 1263.959224][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1263.959224][   T73]      process_one_work+0x84d/0x18a0
[ 1263.959224][   T73]      worker_thread+0x587/0xd30
[ 1263.959224][   T73]      kthread+0x28a/0x350
[ 1263.959224][   T73]      ret_from_fork+0x31/0x70
[ 1263.959224][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1263.959224][   T73] 
[ 1263.961345][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1263.961345][   T73]      netdev_get_by_index+0x5e/0x80
[ 1263.961345][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1263.961345][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1263.961345][   T73]      ip6_route_add+0x1c/0x140
[ 1263.961345][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1263.961345][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1263.961345][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1263.961345][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1263.961345][   T73]      netlink_rcv_skb+0x130/0x360
[ 1263.961345][   T73]      netlink_unicast+0x449/0x710
[ 1263.961345][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1263.961345][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1263.961345][   T73]      ___sys_sendmsg+0xee/0x170
[ 1263.961345][   T73]      __sys_sendmsg+0xcd/0x170
[ 1263.961345][   T73]      do_syscall_64+0xc6/0x1e0
[ 1263.961345][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1263.961345][   T73] 
[ 1263.963603][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1263.963603][   T73]      netdev_get_by_index+0x5e/0x80
[ 1263.963603][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1263.963603][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1263.963603][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1263.963603][   T73]      ipv6_add_addr+0x411/0x2000
[ 1263.963603][   T73]      inet6_addr_add+0x30e/0xa40
[ 1263.963603][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1263.963603][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1263.963603][   T73]      netlink_rcv_skb+0x130/0x360
[ 1263.963603][   T73]      netlink_unicast+0x449/0x710
[ 1263.963603][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1263.963603][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1263.963603][   T73]      ___sys_sendmsg+0xee/0x170
[ 1263.963603][   T73]      __sys_sendmsg+0xcd/0x170
[ 1263.963603][   T73]      do_syscall_64+0xc6/0x1e0
[ 1263.963603][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1263.963603][   T73] 
[ 1263.965864][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1263.965864][   T73]      netdev_get_by_index+0x5e/0x80
[ 1263.965864][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1263.965864][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1263.965864][   T73]      ip6_route_add+0x1c/0x140
[ 1263.965864][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1263.965864][   T73]      addrconf_add_dev+0xe2/0x170
[ 1263.965864][   T73]      inet6_addr_add+0x12f/0xa40
[ 1263.965864][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1263.965864][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1263.965864][   T73]      netlink_rcv_skb+0x130/0x360
[ 1263.965864][   T73]      netlink_unicast+0x449/0x710
[ 1263.965864][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1263.965864][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1263.965864][   T73]      ___sys_sendmsg+0xee/0x170
[ 1263.965864][   T73]      __sys_sendmsg+0xcd/0x170
[ 1263.965864][   T73]      do_syscall_64+0xc6/0x1e0
[ 1263.965864][   T73] 
[ 1263.968145][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1263.968145][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1263.968145][   T73]      ipv6_find_idev+0x102/0x170
[ 1263.968145][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1263.968145][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1263.968145][   T73]      netlink_rcv_skb+0x130/0x360
[ 1263.968145][   T73]      netlink_unicast+0x449/0x710
[ 1263.968145][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1263.968145][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1263.968145][   T73]      ___sys_sendmsg+0xee/0x170
[ 1263.968145][   T73]      __sys_sendmsg+0xcd/0x170
[ 1263.968145][   T73]      do_syscall_64+0xc6/0x1e0
[ 1263.968145][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1263.968145][   T73] 
[ 1263.969885][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1263.969885][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1263.969885][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1263.969885][   T73]      ipv6_find_idev+0x102/0x170
[ 1263.969885][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1263.969885][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1263.969885][   T73]      netlink_rcv_skb+0x130/0x360
[ 1263.969885][   T73]      netlink_unicast+0x449/0x710
[ 1263.969885][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1263.969885][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1263.969885][   T73]      ___sys_sendmsg+0xee/0x170
[ 1263.969885][   T73]      __sys_sendmsg+0xcd/0x170
[ 1263.969885][   T73]      do_syscall_64+0xc6/0x1e0
[ 1263.969885][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1263.969885][   T73] 
[ 1274.223780][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1274.224203][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1274.224203][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1274.224203][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1274.224203][   T73]      fib6_nh_init+0xa22/0x1580
[ 1274.224203][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1274.224203][   T73]      ip6_route_add+0x1c/0x140
[ 1274.224203][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1274.224203][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1274.224203][   T73]      netlink_rcv_skb+0x130/0x360
[ 1274.224203][   T73]      netlink_unicast+0x449/0x710
[ 1274.224203][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1274.224203][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1274.224203][   T73]      ___sys_sendmsg+0xee/0x170
[ 1274.224203][   T73]      __sys_sendmsg+0xcd/0x170
[ 1274.224203][   T73]      do_syscall_64+0xc6/0x1e0
[ 1274.224203][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1274.224203][   T73] 
[ 1274.226102][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1274.226102][   T73]      dst_init+0x84/0x4a0
[ 1274.226102][   T73]      dst_alloc+0x97/0x150
[ 1274.226102][   T73]      ip6_dst_alloc+0x23/0x90
[ 1274.226102][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1274.226102][   T73]      ip6_pol_route+0x56f/0x840
[ 1274.226102][   T73]      fib6_rule_lookup+0x456/0x630
[ 1274.226102][   T73]      ip6_route_input+0x59c/0xa50
[ 1274.226102][   T73]      ipv6_rcv+0x397/0x810
[ 1274.226102][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1274.226102][   T73]      process_backlog+0x101/0x620
[ 1274.226102][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1274.226102][   T73]      net_rx_action+0x495/0xbe0
[ 1274.226102][   T73]      __do_softirq+0x1b5/0x7f6
[ 1274.226102][   T73] 
[ 1274.227740][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1274.227740][   T73]      netdev_get_by_index+0x5e/0x80
[ 1274.227740][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1274.227740][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1274.227740][   T73]      ip6_route_add+0x1c/0x140
[ 1274.227740][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1274.227740][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1274.227740][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1274.227740][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1274.227740][   T73]      netlink_rcv_skb+0x130/0x360
[ 1274.227740][   T73]      netlink_unicast+0x449/0x710
[ 1274.227740][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1274.227740][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1274.227740][   T73]      ___sys_sendmsg+0xee/0x170
[ 1274.227740][   T73]      __sys_sendmsg+0xcd/0x170
[ 1274.227740][   T73]      do_syscall_64+0xc6/0x1e0
[ 1274.227740][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1274.227740][   T73] 
[ 1274.229742][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1274.229742][   T73]      netdev_get_by_index+0x5e/0x80
[ 1274.229742][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1274.229742][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1274.229742][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1274.229742][   T73]      ipv6_add_addr+0x411/0x2000
[ 1274.229742][   T73]      inet6_addr_add+0x30e/0xa40
[ 1274.229742][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1274.229742][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1274.229742][   T73]      netlink_rcv_skb+0x130/0x360
[ 1274.229742][   T73]      netlink_unicast+0x449/0x710
[ 1274.229742][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1274.229742][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1274.229742][   T73]      ___sys_sendmsg+0xee/0x170
[ 1274.229742][   T73]      __sys_sendmsg+0xcd/0x170
[ 1274.229742][   T73]      do_syscall_64+0xc6/0x1e0
[ 1274.229742][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1274.229742][   T73] 
[ 1274.231743][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1274.231743][   T73]      netdev_get_by_index+0x5e/0x80
[ 1274.231743][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1274.231743][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1274.231743][   T73]      ip6_route_add+0x1c/0x140
[ 1274.231743][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1274.231743][   T73]      addrconf_add_dev+0xe2/0x170
[ 1274.231743][   T73]      inet6_addr_add+0x12f/0xa40
[ 1274.231743][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1274.231743][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1274.231743][   T73]      netlink_rcv_skb+0x130/0x360
[ 1274.231743][   T73]      netlink_unicast+0x449/0x710
[ 1274.231743][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1274.231743][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1274.231743][   T73]      ___sys_sendmsg+0xee/0x170
[ 1274.231743][   T73]      __sys_sendmsg+0xcd/0x170
[ 1274.231743][   T73]      do_syscall_64+0xc6/0x1e0
[ 1274.231743][   T73] 
[ 1274.233700][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1274.233700][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1274.233700][   T73]      ipv6_find_idev+0x102/0x170
[ 1274.233700][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1274.233700][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1274.233700][   T73]      netlink_rcv_skb+0x130/0x360
[ 1274.233700][   T73]      netlink_unicast+0x449/0x710
[ 1274.233700][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1274.233700][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1274.233700][   T73]      ___sys_sendmsg+0xee/0x170
[ 1274.233700][   T73]      __sys_sendmsg+0xcd/0x170
[ 1274.233700][   T73]      do_syscall_64+0xc6/0x1e0
[ 1274.233700][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1274.233700][   T73] 
[ 1274.235242][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1274.235242][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1274.235242][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1274.235242][   T73]      ipv6_find_idev+0x102/0x170
[ 1274.235242][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1274.235242][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1274.235242][   T73]      netlink_rcv_skb+0x130/0x360
[ 1274.235242][   T73]      netlink_unicast+0x449/0x710
[ 1274.235242][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1274.235242][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1274.235242][   T73]      ___sys_sendmsg+0xee/0x170
[ 1274.235242][   T73]      __sys_sendmsg+0xcd/0x170
[ 1274.235242][   T73]      do_syscall_64+0xc6/0x1e0
[ 1274.235242][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1274.235242][   T73] 
[ 1274.236943][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1274.237229][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1274.237229][   T73]      netdev_get_by_index+0x5e/0x80
[ 1274.237229][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1274.237229][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1274.237229][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1274.237229][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1274.237229][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1274.237229][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1274.237229][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1274.237229][   T73]      addrconf_dad_begin+0x310/0x670
[ 1274.237229][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1274.237229][   T73]      process_one_work+0x84d/0x18a0
[ 1274.237229][   T73]      worker_thread+0x587/0xd30
[ 1274.237229][   T73]      kthread+0x28a/0x350
[ 1274.237229][   T73]      ret_from_fork+0x31/0x70
[ 1274.237229][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1274.237229][   T73] 
[ 1274.239156][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1274.239156][   T73]      netdev_get_by_index+0x5e/0x80
[ 1274.239156][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1274.239156][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1274.239156][   T73]      ip6_route_add+0x1c/0x140
[ 1274.239156][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1274.239156][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1274.239156][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1274.239156][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1274.239156][   T73]      netlink_rcv_skb+0x130/0x360
[ 1274.239156][   T73]      netlink_unicast+0x449/0x710
[ 1274.239156][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1274.239156][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1274.239156][   T73]      ___sys_sendmsg+0xee/0x170
[ 1274.239156][   T73]      __sys_sendmsg+0xcd/0x170
[ 1274.239156][   T73]      do_syscall_64+0xc6/0x1e0
[ 1274.239156][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1274.239156][   T73] 
[ 1274.241162][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1274.241162][   T73]      netdev_get_by_index+0x5e/0x80
[ 1274.241162][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1274.241162][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1274.241162][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1274.241162][   T73]      ipv6_add_addr+0x411/0x2000
[ 1274.241162][   T73]      inet6_addr_add+0x30e/0xa40
[ 1274.241162][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1274.241162][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1274.241162][   T73]      netlink_rcv_skb+0x130/0x360
[ 1274.241162][   T73]      netlink_unicast+0x449/0x710
[ 1274.241162][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1274.241162][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1274.241162][   T73]      ___sys_sendmsg+0xee/0x170
[ 1274.241162][   T73]      __sys_sendmsg+0xcd/0x170
[ 1274.241162][   T73]      do_syscall_64+0xc6/0x1e0
[ 1274.241162][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1274.241162][   T73] 
[ 1274.243166][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1274.243166][   T73]      netdev_get_by_index+0x5e/0x80
[ 1274.243166][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1274.243166][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1274.243166][   T73]      ip6_route_add+0x1c/0x140
[ 1274.243166][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1274.243166][   T73]      addrconf_add_dev+0xe2/0x170
[ 1274.243166][   T73]      inet6_addr_add+0x12f/0xa40
[ 1274.243166][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1274.243166][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1274.243166][   T73]      netlink_rcv_skb+0x130/0x360
[ 1274.243166][   T73]      netlink_unicast+0x449/0x710
[ 1274.243166][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1274.243166][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1274.243166][   T73]      ___sys_sendmsg+0xee/0x170
[ 1274.243166][   T73]      __sys_sendmsg+0xcd/0x170
[ 1274.243166][   T73]      do_syscall_64+0xc6/0x1e0
[ 1274.243166][   T73] 
[ 1274.245123][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1274.245123][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1274.245123][   T73]      ipv6_find_idev+0x102/0x170
[ 1274.245123][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1274.245123][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1274.245123][   T73]      netlink_rcv_skb+0x130/0x360
[ 1274.245123][   T73]      netlink_unicast+0x449/0x710
[ 1274.245123][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1274.245123][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1274.245123][   T73]      ___sys_sendmsg+0xee/0x170
[ 1274.245123][   T73]      __sys_sendmsg+0xcd/0x170
[ 1274.245123][   T73]      do_syscall_64+0xc6/0x1e0
[ 1274.245123][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1274.245123][   T73] 
[ 1274.246693][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1274.246693][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1274.246693][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1274.246693][   T73]      ipv6_find_idev+0x102/0x170
[ 1274.246693][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1274.246693][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1274.246693][   T73]      netlink_rcv_skb+0x130/0x360
[ 1274.246693][   T73]      netlink_unicast+0x449/0x710
[ 1274.246693][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1274.246693][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1274.246693][   T73]      ___sys_sendmsg+0xee/0x170
[ 1274.246693][   T73]      __sys_sendmsg+0xcd/0x170
[ 1274.246693][   T73]      do_syscall_64+0xc6/0x1e0
[ 1274.246693][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1274.246693][   T73] 
[ 1274.248419][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1274.248701][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1274.248701][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1274.248701][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1274.248701][   T73]      fib6_nh_init+0xa22/0x1580
[ 1274.248701][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1274.248701][   T73]      ip6_route_add+0x1c/0x140
[ 1274.248701][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1274.248701][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1274.248701][   T73]      netlink_rcv_skb+0x130/0x360
[ 1274.248701][   T73]      netlink_unicast+0x449/0x710
[ 1274.248701][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1274.248701][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1274.248701][   T73]      ___sys_sendmsg+0xee/0x170
[ 1274.248701][   T73]      __sys_sendmsg+0xcd/0x170
[ 1274.248701][   T73]      do_syscall_64+0xc6/0x1e0
[ 1274.248701][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1274.248701][   T73] 
[ 1274.250782][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1274.250782][   T73]      dst_init+0x84/0x4a0
[ 1274.250782][   T73]      dst_alloc+0x97/0x150
[ 1274.250782][   T73]      ip6_dst_alloc+0x23/0x90
[ 1274.250782][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1274.250782][   T73]      ip6_pol_route+0x56f/0x840
[ 1274.250782][   T73]      fib6_rule_lookup+0x456/0x630
[ 1274.250782][   T73]      ip6_route_input+0x59c/0xa50
[ 1274.250782][   T73]      ipv6_rcv+0x397/0x810
[ 1274.250782][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1274.250782][   T73]      process_backlog+0x101/0x620
[ 1274.250782][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1274.250782][   T73]      net_rx_action+0x495/0xbe0
[ 1274.250782][   T73]      __do_softirq+0x1b5/0x7f6
[ 1274.250782][   T73] 
[ 1274.252603][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1274.252603][   T73]      netdev_get_by_index+0x5e/0x80
[ 1274.252603][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1274.252603][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1274.252603][   T73]      ip6_route_add+0x1c/0x140
[ 1274.252603][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1274.252603][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1274.252603][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1274.252603][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1274.252603][   T73]      netlink_rcv_skb+0x130/0x360
[ 1274.252603][   T73]      netlink_unicast+0x449/0x710
[ 1274.252603][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1274.252603][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1274.252603][   T73]      ___sys_sendmsg+0xee/0x170
[ 1274.252603][   T73]      __sys_sendmsg+0xcd/0x170
[ 1274.252603][   T73]      do_syscall_64+0xc6/0x1e0
[ 1274.252603][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1274.252603][   T73] 
[ 1274.254783][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1274.254783][   T73]      netdev_get_by_index+0x5e/0x80
[ 1274.254783][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1274.254783][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1274.254783][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1274.254783][   T73]      ipv6_add_addr+0x411/0x2000
[ 1274.254783][   T73]      inet6_addr_add+0x30e/0xa40
[ 1274.254783][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1274.254783][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1274.254783][   T73]      netlink_rcv_skb+0x130/0x360
[ 1274.254783][   T73]      netlink_unicast+0x449/0x710
[ 1274.254783][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1274.254783][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1274.254783][   T73]      ___sys_sendmsg+0xee/0x170
[ 1274.254783][   T73]      __sys_sendmsg+0xcd/0x170
[ 1274.254783][   T73]      do_syscall_64+0xc6/0x1e0
[ 1274.254783][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1274.254783][   T73] 
[ 1274.257089][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1274.257089][   T73]      netdev_get_by_index+0x5e/0x80
[ 1274.257089][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1274.257089][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1274.257089][   T73]      ip6_route_add+0x1c/0x140
[ 1274.257089][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1274.257089][   T73]      addrconf_add_dev+0xe2/0x170
[ 1274.257089][   T73]      inet6_addr_add+0x12f/0xa40
[ 1274.257089][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1274.257089][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1274.257089][   T73]      netlink_rcv_skb+0x130/0x360
[ 1274.257089][   T73]      netlink_unicast+0x449/0x710
[ 1274.257089][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1274.257089][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1274.257089][   T73]      ___sys_sendmsg+0xee/0x170
[ 1274.257089][   T73]      __sys_sendmsg+0xcd/0x170
[ 1274.257089][   T73]      do_syscall_64+0xc6/0x1e0
[ 1274.257089][   T73] 
[ 1274.259261][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1274.259261][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1274.259261][   T73]      ipv6_find_idev+0x102/0x170
[ 1274.259261][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1274.259261][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1274.259261][   T73]      netlink_rcv_skb+0x130/0x360
[ 1274.259261][   T73]      netlink_unicast+0x449/0x710
[ 1274.259261][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1274.259261][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1274.259261][   T73]      ___sys_sendmsg+0xee/0x170
[ 1274.259261][   T73]      __sys_sendmsg+0xcd/0x170
[ 1274.259261][   T73]      do_syscall_64+0xc6/0x1e0
[ 1274.259261][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1274.259261][   T73] 
[ 1274.260989][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1274.260989][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1274.260989][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1274.260989][   T73]      ipv6_find_idev+0x102/0x170
[ 1274.260989][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1274.260989][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1274.260989][   T73]      netlink_rcv_skb+0x130/0x360
[ 1274.260989][   T73]      netlink_unicast+0x449/0x710
[ 1274.260989][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1274.260989][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1274.260989][   T73]      ___sys_sendmsg+0xee/0x170
[ 1274.260989][   T73]      __sys_sendmsg+0xcd/0x170
[ 1274.260989][   T73]      do_syscall_64+0xc6/0x1e0
[ 1274.260989][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1274.260989][   T73] 
[ 1274.262810][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1274.263144][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1274.263144][   T73]      netdev_get_by_index+0x5e/0x80
[ 1274.263144][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1274.263144][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1274.263144][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1274.263144][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1274.263144][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1274.263144][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1274.263144][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1274.263144][   T73]      addrconf_dad_begin+0x310/0x670
[ 1274.263144][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1274.263144][   T73]      process_one_work+0x84d/0x18a0
[ 1274.263144][   T73]      worker_thread+0x587/0xd30
[ 1274.263144][   T73]      kthread+0x28a/0x350
[ 1274.263144][   T73]      ret_from_fork+0x31/0x70
[ 1274.263144][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1274.263144][   T73] 
[ 1274.265245][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1274.265245][   T73]      netdev_get_by_index+0x5e/0x80
[ 1274.265245][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1274.265245][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1274.265245][   T73]      ip6_route_add+0x1c/0x140
[ 1274.265245][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1274.265245][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1274.265245][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1274.265245][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1274.265245][   T73]      netlink_rcv_skb+0x130/0x360
[ 1274.265245][   T73]      netlink_unicast+0x449/0x710
[ 1274.265245][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1274.265245][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1274.265245][   T73]      ___sys_sendmsg+0xee/0x170
[ 1274.265245][   T73]      __sys_sendmsg+0xcd/0x170
[ 1274.265245][   T73]      do_syscall_64+0xc6/0x1e0
[ 1274.265245][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1274.265245][   T73] 
[ 1274.267545][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1274.267545][   T73]      netdev_get_by_index+0x5e/0x80
[ 1274.267545][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1274.267545][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1274.267545][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1274.267545][   T73]      ipv6_add_addr+0x411/0x2000
[ 1274.267545][   T73]      inet6_addr_add+0x30e/0xa40
[ 1274.267545][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1274.267545][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1274.267545][   T73]      netlink_rcv_skb+0x130/0x360
[ 1274.267545][   T73]      netlink_unicast+0x449/0x710
[ 1274.267545][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1274.267545][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1274.267545][   T73]      ___sys_sendmsg+0xee/0x170
[ 1274.267545][   T73]      __sys_sendmsg+0xcd/0x170
[ 1274.267545][   T73]      do_syscall_64+0xc6/0x1e0
[ 1274.267545][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1274.267545][   T73] 
[ 1274.269812][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1274.269812][   T73]      netdev_get_by_index+0x5e/0x80
[ 1274.269812][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1274.269812][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1274.269812][   T73]      ip6_route_add+0x1c/0x140
[ 1274.269812][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1274.269812][   T73]      addrconf_add_dev+0xe2/0x170
[ 1274.269812][   T73]      inet6_addr_add+0x12f/0xa40
[ 1274.269812][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1274.269812][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1274.269812][   T73]      netlink_rcv_skb+0x130/0x360
[ 1274.269812][   T73]      netlink_unicast+0x449/0x710
[ 1274.269812][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1274.269812][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1274.269812][   T73]      ___sys_sendmsg+0xee/0x170
[ 1274.269812][   T73]      __sys_sendmsg+0xcd/0x170
[ 1274.269812][   T73]      do_syscall_64+0xc6/0x1e0
[ 1274.269812][   T73] 
[ 1274.271966][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1274.271966][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1274.271966][   T73]      ipv6_find_idev+0x102/0x170
[ 1274.271966][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1274.271966][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1274.271966][   T73]      netlink_rcv_skb+0x130/0x360
[ 1274.271966][   T73]      netlink_unicast+0x449/0x710
[ 1274.271966][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1274.271966][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1274.271966][   T73]      ___sys_sendmsg+0xee/0x170
[ 1274.271966][   T73]      __sys_sendmsg+0xcd/0x170
[ 1274.271966][   T73]      do_syscall_64+0xc6/0x1e0
[ 1274.271966][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1274.271966][   T73] 
[ 1274.273697][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1274.273697][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1274.273697][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1274.273697][   T73]      ipv6_find_idev+0x102/0x170
[ 1274.273697][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1274.273697][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1274.273697][   T73]      netlink_rcv_skb+0x130/0x360
[ 1274.273697][   T73]      netlink_unicast+0x449/0x710
[ 1274.273697][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1274.273697][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1274.273697][   T73]      ___sys_sendmsg+0xee/0x170
[ 1274.273697][   T73]      __sys_sendmsg+0xcd/0x170
[ 1274.273697][   T73]      do_syscall_64+0xc6/0x1e0
[ 1274.273697][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1274.273697][   T73] 
[ 1284.343813][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1284.344241][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1284.344241][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1284.344241][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1284.344241][   T73]      fib6_nh_init+0xa22/0x1580
[ 1284.344241][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1284.344241][   T73]      ip6_route_add+0x1c/0x140
[ 1284.344241][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1284.344241][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1284.344241][   T73]      netlink_rcv_skb+0x130/0x360
[ 1284.344241][   T73]      netlink_unicast+0x449/0x710
[ 1284.344241][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1284.344241][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1284.344241][   T73]      ___sys_sendmsg+0xee/0x170
[ 1284.344241][   T73]      __sys_sendmsg+0xcd/0x170
[ 1284.344241][   T73]      do_syscall_64+0xc6/0x1e0
[ 1284.344241][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1284.344241][   T73] 
[ 1284.346148][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1284.346148][   T73]      dst_init+0x84/0x4a0
[ 1284.346148][   T73]      dst_alloc+0x97/0x150
[ 1284.346148][   T73]      ip6_dst_alloc+0x23/0x90
[ 1284.346148][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1284.346148][   T73]      ip6_pol_route+0x56f/0x840
[ 1284.346148][   T73]      fib6_rule_lookup+0x456/0x630
[ 1284.346148][   T73]      ip6_route_input+0x59c/0xa50
[ 1284.346148][   T73]      ipv6_rcv+0x397/0x810
[ 1284.346148][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1284.346148][   T73]      process_backlog+0x101/0x620
[ 1284.346148][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1284.346148][   T73]      net_rx_action+0x495/0xbe0
[ 1284.346148][   T73]      __do_softirq+0x1b5/0x7f6
[ 1284.346148][   T73] 
[ 1284.347785][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1284.347785][   T73]      netdev_get_by_index+0x5e/0x80
[ 1284.347785][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1284.347785][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1284.347785][   T73]      ip6_route_add+0x1c/0x140
[ 1284.347785][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1284.347785][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1284.347785][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1284.347785][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1284.347785][   T73]      netlink_rcv_skb+0x130/0x360
[ 1284.347785][   T73]      netlink_unicast+0x449/0x710
[ 1284.347785][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1284.347785][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1284.347785][   T73]      ___sys_sendmsg+0xee/0x170
[ 1284.347785][   T73]      __sys_sendmsg+0xcd/0x170
[ 1284.347785][   T73]      do_syscall_64+0xc6/0x1e0
[ 1284.347785][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1284.347785][   T73] 
[ 1284.349776][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1284.349776][   T73]      netdev_get_by_index+0x5e/0x80
[ 1284.349776][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1284.349776][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1284.349776][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1284.349776][   T73]      ipv6_add_addr+0x411/0x2000
[ 1284.349776][   T73]      inet6_addr_add+0x30e/0xa40
[ 1284.349776][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1284.349776][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1284.349776][   T73]      netlink_rcv_skb+0x130/0x360
[ 1284.349776][   T73]      netlink_unicast+0x449/0x710
[ 1284.349776][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1284.349776][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1284.349776][   T73]      ___sys_sendmsg+0xee/0x170
[ 1284.349776][   T73]      __sys_sendmsg+0xcd/0x170
[ 1284.349776][   T73]      do_syscall_64+0xc6/0x1e0
[ 1284.349776][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1284.349776][   T73] 
[ 1284.351768][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1284.351768][   T73]      netdev_get_by_index+0x5e/0x80
[ 1284.351768][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1284.351768][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1284.351768][   T73]      ip6_route_add+0x1c/0x140
[ 1284.351768][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1284.351768][   T73]      addrconf_add_dev+0xe2/0x170
[ 1284.351768][   T73]      inet6_addr_add+0x12f/0xa40
[ 1284.351768][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1284.351768][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1284.351768][   T73]      netlink_rcv_skb+0x130/0x360
[ 1284.351768][   T73]      netlink_unicast+0x449/0x710
[ 1284.351768][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1284.351768][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1284.351768][   T73]      ___sys_sendmsg+0xee/0x170
[ 1284.351768][   T73]      __sys_sendmsg+0xcd/0x170
[ 1284.351768][   T73]      do_syscall_64+0xc6/0x1e0
[ 1284.351768][   T73] 
[ 1284.353721][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1284.353721][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1284.353721][   T73]      ipv6_find_idev+0x102/0x170
[ 1284.353721][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1284.353721][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1284.353721][   T73]      netlink_rcv_skb+0x130/0x360
[ 1284.353721][   T73]      netlink_unicast+0x449/0x710
[ 1284.353721][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1284.353721][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1284.353721][   T73]      ___sys_sendmsg+0xee/0x170
[ 1284.353721][   T73]      __sys_sendmsg+0xcd/0x170
[ 1284.353721][   T73]      do_syscall_64+0xc6/0x1e0
[ 1284.353721][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1284.353721][   T73] 
[ 1284.355288][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1284.355288][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1284.355288][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1284.355288][   T73]      ipv6_find_idev+0x102/0x170
[ 1284.355288][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1284.355288][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1284.355288][   T73]      netlink_rcv_skb+0x130/0x360
[ 1284.355288][   T73]      netlink_unicast+0x449/0x710
[ 1284.355288][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1284.355288][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1284.355288][   T73]      ___sys_sendmsg+0xee/0x170
[ 1284.355288][   T73]      __sys_sendmsg+0xcd/0x170
[ 1284.355288][   T73]      do_syscall_64+0xc6/0x1e0
[ 1284.355288][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1284.355288][   T73] 
[ 1284.356978][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1284.357259][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1284.357259][   T73]      netdev_get_by_index+0x5e/0x80
[ 1284.357259][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1284.357259][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1284.357259][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1284.357259][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1284.357259][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1284.357259][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1284.357259][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1284.357259][   T73]      addrconf_dad_begin+0x310/0x670
[ 1284.357259][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1284.357259][   T73]      process_one_work+0x84d/0x18a0
[ 1284.357259][   T73]      worker_thread+0x587/0xd30
[ 1284.357259][   T73]      kthread+0x28a/0x350
[ 1284.357259][   T73]      ret_from_fork+0x31/0x70
[ 1284.357259][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1284.357259][   T73] 
[ 1284.359187][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1284.359187][   T73]      netdev_get_by_index+0x5e/0x80
[ 1284.359187][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1284.359187][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1284.359187][   T73]      ip6_route_add+0x1c/0x140
[ 1284.359187][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1284.359187][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1284.359187][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1284.359187][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1284.359187][   T73]      netlink_rcv_skb+0x130/0x360
[ 1284.359187][   T73]      netlink_unicast+0x449/0x710
[ 1284.359187][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1284.359187][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1284.359187][   T73]      ___sys_sendmsg+0xee/0x170
[ 1284.359187][   T73]      __sys_sendmsg+0xcd/0x170
[ 1284.359187][   T73]      do_syscall_64+0xc6/0x1e0
[ 1284.359187][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1284.359187][   T73] 
[ 1284.361191][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1284.361191][   T73]      netdev_get_by_index+0x5e/0x80
[ 1284.361191][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1284.361191][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1284.361191][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1284.361191][   T73]      ipv6_add_addr+0x411/0x2000
[ 1284.361191][   T73]      inet6_addr_add+0x30e/0xa40
[ 1284.361191][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1284.361191][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1284.361191][   T73]      netlink_rcv_skb+0x130/0x360
[ 1284.361191][   T73]      netlink_unicast+0x449/0x710
[ 1284.361191][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1284.361191][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1284.361191][   T73]      ___sys_sendmsg+0xee/0x170
[ 1284.361191][   T73]      __sys_sendmsg+0xcd/0x170
[ 1284.361191][   T73]      do_syscall_64+0xc6/0x1e0
[ 1284.361191][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1284.361191][   T73] 
[ 1284.363374][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1284.363374][   T73]      netdev_get_by_index+0x5e/0x80
[ 1284.363374][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1284.363374][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1284.363374][   T73]      ip6_route_add+0x1c/0x140
[ 1284.363374][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1284.363374][   T73]      addrconf_add_dev+0xe2/0x170
[ 1284.363374][   T73]      inet6_addr_add+0x12f/0xa40
[ 1284.363374][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1284.363374][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1284.363374][   T73]      netlink_rcv_skb+0x130/0x360
[ 1284.363374][   T73]      netlink_unicast+0x449/0x710
[ 1284.363374][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1284.363374][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1284.363374][   T73]      ___sys_sendmsg+0xee/0x170
[ 1284.363374][   T73]      __sys_sendmsg+0xcd/0x170
[ 1284.363374][   T73]      do_syscall_64+0xc6/0x1e0
[ 1284.363374][   T73] 
[ 1284.365363][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1284.365363][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1284.365363][   T73]      ipv6_find_idev+0x102/0x170
[ 1284.365363][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1284.365363][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1284.365363][   T73]      netlink_rcv_skb+0x130/0x360
[ 1284.365363][   T73]      netlink_unicast+0x449/0x710
[ 1284.365363][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1284.365363][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1284.365363][   T73]      ___sys_sendmsg+0xee/0x170
[ 1284.365363][   T73]      __sys_sendmsg+0xcd/0x170
[ 1284.365363][   T73]      do_syscall_64+0xc6/0x1e0
[ 1284.365363][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1284.365363][   T73] 
[ 1284.366912][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1284.366912][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1284.366912][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1284.366912][   T73]      ipv6_find_idev+0x102/0x170
[ 1284.366912][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1284.366912][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1284.366912][   T73]      netlink_rcv_skb+0x130/0x360
[ 1284.366912][   T73]      netlink_unicast+0x449/0x710
[ 1284.366912][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1284.366912][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1284.366912][   T73]      ___sys_sendmsg+0xee/0x170
[ 1284.366912][   T73]      __sys_sendmsg+0xcd/0x170
[ 1284.366912][   T73]      do_syscall_64+0xc6/0x1e0
[ 1284.366912][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1284.366912][   T73] 
[ 1284.369132][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1284.369408][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1284.369408][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1284.369408][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1284.369408][   T73]      fib6_nh_init+0xa22/0x1580
[ 1284.369408][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1284.369408][   T73]      ip6_route_add+0x1c/0x140
[ 1284.369408][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1284.369408][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1284.369408][   T73]      netlink_rcv_skb+0x130/0x360
[ 1284.369408][   T73]      netlink_unicast+0x449/0x710
[ 1284.369408][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1284.369408][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1284.369408][   T73]      ___sys_sendmsg+0xee/0x170
[ 1284.369408][   T73]      __sys_sendmsg+0xcd/0x170
[ 1284.369408][   T73]      do_syscall_64+0xc6/0x1e0
[ 1284.369408][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1284.369408][   T73] 
[ 1284.371464][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1284.371464][   T73]      dst_init+0x84/0x4a0
[ 1284.371464][   T73]      dst_alloc+0x97/0x150
[ 1284.371464][   T73]      ip6_dst_alloc+0x23/0x90
[ 1284.371464][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1284.371464][   T73]      ip6_pol_route+0x56f/0x840
[ 1284.371464][   T73]      fib6_rule_lookup+0x456/0x630
[ 1284.371464][   T73]      ip6_route_input+0x59c/0xa50
[ 1284.371464][   T73]      ipv6_rcv+0x397/0x810
[ 1284.371464][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1284.371464][   T73]      process_backlog+0x101/0x620
[ 1284.371464][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1284.371464][   T73]      net_rx_action+0x495/0xbe0
[ 1284.371464][   T73]      __do_softirq+0x1b5/0x7f6
[ 1284.371464][   T73] 
[ 1284.373270][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1284.373270][   T73]      netdev_get_by_index+0x5e/0x80
[ 1284.373270][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1284.373270][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1284.373270][   T73]      ip6_route_add+0x1c/0x140
[ 1284.373270][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1284.373270][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1284.373270][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1284.373270][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1284.373270][   T73]      netlink_rcv_skb+0x130/0x360
[ 1284.373270][   T73]      netlink_unicast+0x449/0x710
[ 1284.373270][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1284.373270][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1284.373270][   T73]      ___sys_sendmsg+0xee/0x170
[ 1284.373270][   T73]      __sys_sendmsg+0xcd/0x170
[ 1284.373270][   T73]      do_syscall_64+0xc6/0x1e0
[ 1284.373270][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1284.373270][   T73] 
[ 1284.375434][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1284.375434][   T73]      netdev_get_by_index+0x5e/0x80
[ 1284.375434][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1284.375434][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1284.375434][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1284.375434][   T73]      ipv6_add_addr+0x411/0x2000
[ 1284.375434][   T73]      inet6_addr_add+0x30e/0xa40
[ 1284.375434][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1284.375434][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1284.375434][   T73]      netlink_rcv_skb+0x130/0x360
[ 1284.375434][   T73]      netlink_unicast+0x449/0x710
[ 1284.375434][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1284.375434][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1284.375434][   T73]      ___sys_sendmsg+0xee/0x170
[ 1284.375434][   T73]      __sys_sendmsg+0xcd/0x170
[ 1284.375434][   T73]      do_syscall_64+0xc6/0x1e0
[ 1284.375434][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1284.375434][   T73] 
[ 1284.377619][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1284.377619][   T73]      netdev_get_by_index+0x5e/0x80
[ 1284.377619][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1284.377619][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1284.377619][   T73]      ip6_route_add+0x1c/0x140
[ 1284.377619][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1284.377619][   T73]      addrconf_add_dev+0xe2/0x170
[ 1284.377619][   T73]      inet6_addr_add+0x12f/0xa40
[ 1284.377619][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1284.377619][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1284.377619][   T73]      netlink_rcv_skb+0x130/0x360
[ 1284.377619][   T73]      netlink_unicast+0x449/0x710
[ 1284.377619][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1284.377619][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1284.377619][   T73]      ___sys_sendmsg+0xee/0x170
[ 1284.377619][   T73]      __sys_sendmsg+0xcd/0x170
[ 1284.377619][   T73]      do_syscall_64+0xc6/0x1e0
[ 1284.377619][   T73] 
[ 1284.379844][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1284.379844][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1284.379844][   T73]      ipv6_find_idev+0x102/0x170
[ 1284.379844][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1284.379844][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1284.379844][   T73]      netlink_rcv_skb+0x130/0x360
[ 1284.379844][   T73]      netlink_unicast+0x449/0x710
[ 1284.379844][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1284.379844][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1284.379844][   T73]      ___sys_sendmsg+0xee/0x170
[ 1284.379844][   T73]      __sys_sendmsg+0xcd/0x170
[ 1284.379844][   T73]      do_syscall_64+0xc6/0x1e0
[ 1284.379844][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1284.379844][   T73] 
[ 1284.381589][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1284.381589][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1284.381589][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1284.381589][   T73]      ipv6_find_idev+0x102/0x170
[ 1284.381589][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1284.381589][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1284.381589][   T73]      netlink_rcv_skb+0x130/0x360
[ 1284.381589][   T73]      netlink_unicast+0x449/0x710
[ 1284.381589][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1284.381589][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1284.381589][   T73]      ___sys_sendmsg+0xee/0x170
[ 1284.381589][   T73]      __sys_sendmsg+0xcd/0x170
[ 1284.381589][   T73]      do_syscall_64+0xc6/0x1e0
[ 1284.381589][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1284.381589][   T73] 
[ 1284.383564][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1284.384377][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1284.384377][   T73]      netdev_get_by_index+0x5e/0x80
[ 1284.384377][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1284.384377][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1284.384377][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1284.384377][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1284.384377][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1284.384377][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1284.384377][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1284.384377][   T73]      addrconf_dad_begin+0x310/0x670
[ 1284.384377][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1284.384377][   T73]      process_one_work+0x84d/0x18a0
[ 1284.384377][   T73]      worker_thread+0x587/0xd30
[ 1284.384377][   T73]      kthread+0x28a/0x350
[ 1284.384377][   T73]      ret_from_fork+0x31/0x70
[ 1284.384377][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1284.384377][   T73] 
[ 1284.386316][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1284.386316][   T73]      netdev_get_by_index+0x5e/0x80
[ 1284.386316][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1284.386316][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1284.386316][   T73]      ip6_route_add+0x1c/0x140
[ 1284.386316][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1284.386316][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1284.386316][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1284.386316][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1284.386316][   T73]      netlink_rcv_skb+0x130/0x360
[ 1284.386316][   T73]      netlink_unicast+0x449/0x710
[ 1284.386316][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1284.386316][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1284.386316][   T73]      ___sys_sendmsg+0xee/0x170
[ 1284.386316][   T73]      __sys_sendmsg+0xcd/0x170
[ 1284.386316][   T73]      do_syscall_64+0xc6/0x1e0
[ 1284.386316][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1284.386316][   T73] 
[ 1284.388801][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1284.388801][   T73]      netdev_get_by_index+0x5e/0x80
[ 1284.388801][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1284.388801][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1284.388801][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1284.388801][   T73]      ipv6_add_addr+0x411/0x2000
[ 1284.388801][   T73]      inet6_addr_add+0x30e/0xa40
[ 1284.388801][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1284.388801][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1284.388801][   T73]      netlink_rcv_skb+0x130/0x360
[ 1284.388801][   T73]      netlink_unicast+0x449/0x710
[ 1284.388801][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1284.388801][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1284.388801][   T73]      ___sys_sendmsg+0xee/0x170
[ 1284.388801][   T73]      __sys_sendmsg+0xcd/0x170
[ 1284.388801][   T73]      do_syscall_64+0xc6/0x1e0
[ 1284.388801][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1284.388801][   T73] 
[ 1284.391069][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1284.391069][   T73]      netdev_get_by_index+0x5e/0x80
[ 1284.391069][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1284.391069][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1284.391069][   T73]      ip6_route_add+0x1c/0x140
[ 1284.391069][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1284.391069][   T73]      addrconf_add_dev+0xe2/0x170
[ 1284.391069][   T73]      inet6_addr_add+0x12f/0xa40
[ 1284.391069][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1284.391069][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1284.391069][   T73]      netlink_rcv_skb+0x130/0x360
[ 1284.391069][   T73]      netlink_unicast+0x449/0x710
[ 1284.391069][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1284.391069][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1284.391069][   T73]      ___sys_sendmsg+0xee/0x170
[ 1284.391069][   T73]      __sys_sendmsg+0xcd/0x170
[ 1284.391069][   T73]      do_syscall_64+0xc6/0x1e0
[ 1284.391069][   T73] 
[ 1284.393246][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1284.393246][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1284.393246][   T73]      ipv6_find_idev+0x102/0x170
[ 1284.393246][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1284.393246][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1284.393246][   T73]      netlink_rcv_skb+0x130/0x360
[ 1284.393246][   T73]      netlink_unicast+0x449/0x710
[ 1284.393246][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1284.393246][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1284.393246][   T73]      ___sys_sendmsg+0xee/0x170
[ 1284.393246][   T73]      __sys_sendmsg+0xcd/0x170
[ 1284.393246][   T73]      do_syscall_64+0xc6/0x1e0
[ 1284.393246][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1284.393246][   T73] 
[ 1284.395047][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1284.395047][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1284.395047][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1284.395047][   T73]      ipv6_find_idev+0x102/0x170
[ 1284.395047][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1284.395047][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1284.395047][   T73]      netlink_rcv_skb+0x130/0x360
[ 1284.395047][   T73]      netlink_unicast+0x449/0x710
[ 1284.395047][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1284.395047][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1284.395047][   T73]      ___sys_sendmsg+0xee/0x170
[ 1284.395047][   T73]      __sys_sendmsg+0xcd/0x170
[ 1284.395047][   T73]      do_syscall_64+0xc6/0x1e0
[ 1284.395047][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1284.395047][   T73] 
[ 1294.839866][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1294.840307][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1294.840307][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1294.840307][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1294.840307][   T73]      fib6_nh_init+0xa22/0x1580
[ 1294.840307][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1294.840307][   T73]      ip6_route_add+0x1c/0x140
[ 1294.840307][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1294.840307][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1294.840307][   T73]      netlink_rcv_skb+0x130/0x360
[ 1294.840307][   T73]      netlink_unicast+0x449/0x710
[ 1294.840307][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1294.840307][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1294.840307][   T73]      ___sys_sendmsg+0xee/0x170
[ 1294.840307][   T73]      __sys_sendmsg+0xcd/0x170
[ 1294.840307][   T73]      do_syscall_64+0xc6/0x1e0
[ 1294.840307][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1294.840307][   T73] 
[ 1294.842235][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1294.842235][   T73]      dst_init+0x84/0x4a0
[ 1294.842235][   T73]      dst_alloc+0x97/0x150
[ 1294.842235][   T73]      ip6_dst_alloc+0x23/0x90
[ 1294.842235][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1294.842235][   T73]      ip6_pol_route+0x56f/0x840
[ 1294.842235][   T73]      fib6_rule_lookup+0x456/0x630
[ 1294.842235][   T73]      ip6_route_input+0x59c/0xa50
[ 1294.842235][   T73]      ipv6_rcv+0x397/0x810
[ 1294.842235][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1294.842235][   T73]      process_backlog+0x101/0x620
[ 1294.842235][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1294.842235][   T73]      net_rx_action+0x495/0xbe0
[ 1294.842235][   T73]      __do_softirq+0x1b5/0x7f6
[ 1294.842235][   T73] 
[ 1294.843894][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1294.843894][   T73]      netdev_get_by_index+0x5e/0x80
[ 1294.843894][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1294.843894][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1294.843894][   T73]      ip6_route_add+0x1c/0x140
[ 1294.843894][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1294.843894][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1294.843894][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1294.843894][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1294.843894][   T73]      netlink_rcv_skb+0x130/0x360
[ 1294.843894][   T73]      netlink_unicast+0x449/0x710
[ 1294.843894][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1294.843894][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1294.843894][   T73]      ___sys_sendmsg+0xee/0x170
[ 1294.843894][   T73]      __sys_sendmsg+0xcd/0x170
[ 1294.843894][   T73]      do_syscall_64+0xc6/0x1e0
[ 1294.843894][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1294.843894][   T73] 
[ 1294.845906][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1294.845906][   T73]      netdev_get_by_index+0x5e/0x80
[ 1294.845906][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1294.845906][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1294.845906][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1294.845906][   T73]      ipv6_add_addr+0x411/0x2000
[ 1294.845906][   T73]      inet6_addr_add+0x30e/0xa40
[ 1294.845906][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1294.845906][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1294.845906][   T73]      netlink_rcv_skb+0x130/0x360
[ 1294.845906][   T73]      netlink_unicast+0x449/0x710
[ 1294.845906][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1294.845906][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1294.845906][   T73]      ___sys_sendmsg+0xee/0x170
[ 1294.845906][   T73]      __sys_sendmsg+0xcd/0x170
[ 1294.845906][   T73]      do_syscall_64+0xc6/0x1e0
[ 1294.845906][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1294.845906][   T73] 
[ 1294.848331][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1294.848331][   T73]      netdev_get_by_index+0x5e/0x80
[ 1294.848331][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1294.848331][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1294.848331][   T73]      ip6_route_add+0x1c/0x140
[ 1294.848331][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1294.848331][   T73]      addrconf_add_dev+0xe2/0x170
[ 1294.848331][   T73]      inet6_addr_add+0x12f/0xa40
[ 1294.848331][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1294.848331][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1294.848331][   T73]      netlink_rcv_skb+0x130/0x360
[ 1294.848331][   T73]      netlink_unicast+0x449/0x710
[ 1294.848331][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1294.848331][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1294.848331][   T73]      ___sys_sendmsg+0xee/0x170
[ 1294.848331][   T73]      __sys_sendmsg+0xcd/0x170
[ 1294.848331][   T73]      do_syscall_64+0xc6/0x1e0
[ 1294.848331][   T73] 
[ 1294.850328][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1294.850328][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1294.850328][   T73]      ipv6_find_idev+0x102/0x170
[ 1294.850328][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1294.850328][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1294.850328][   T73]      netlink_rcv_skb+0x130/0x360
[ 1294.850328][   T73]      netlink_unicast+0x449/0x710
[ 1294.850328][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1294.850328][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1294.850328][   T73]      ___sys_sendmsg+0xee/0x170
[ 1294.850328][   T73]      __sys_sendmsg+0xcd/0x170
[ 1294.850328][   T73]      do_syscall_64+0xc6/0x1e0
[ 1294.850328][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1294.850328][   T73] 
[ 1294.851875][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1294.851875][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1294.851875][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1294.851875][   T73]      ipv6_find_idev+0x102/0x170
[ 1294.851875][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1294.851875][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1294.851875][   T73]      netlink_rcv_skb+0x130/0x360
[ 1294.851875][   T73]      netlink_unicast+0x449/0x710
[ 1294.851875][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1294.851875][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1294.851875][   T73]      ___sys_sendmsg+0xee/0x170
[ 1294.851875][   T73]      __sys_sendmsg+0xcd/0x170
[ 1294.851875][   T73]      do_syscall_64+0xc6/0x1e0
[ 1294.851875][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1294.851875][   T73] 
[ 1294.853615][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1294.853919][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1294.853919][   T73]      netdev_get_by_index+0x5e/0x80
[ 1294.853919][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1294.853919][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1294.853919][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1294.853919][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1294.853919][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1294.853919][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1294.853919][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1294.853919][   T73]      addrconf_dad_begin+0x310/0x670
[ 1294.853919][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1294.853919][   T73]      process_one_work+0x84d/0x18a0
[ 1294.853919][   T73]      worker_thread+0x587/0xd30
[ 1294.853919][   T73]      kthread+0x28a/0x350
[ 1294.853919][   T73]      ret_from_fork+0x31/0x70
[ 1294.853919][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1294.853919][   T73] 
[ 1294.855848][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1294.855848][   T73]      netdev_get_by_index+0x5e/0x80
[ 1294.855848][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1294.855848][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1294.855848][   T73]      ip6_route_add+0x1c/0x140
[ 1294.855848][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1294.855848][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1294.855848][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1294.855848][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1294.855848][   T73]      netlink_rcv_skb+0x130/0x360
[ 1294.855848][   T73]      netlink_unicast+0x449/0x710
[ 1294.855848][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1294.855848][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1294.855848][   T73]      ___sys_sendmsg+0xee/0x170
[ 1294.855848][   T73]      __sys_sendmsg+0xcd/0x170
[ 1294.855848][   T73]      do_syscall_64+0xc6/0x1e0
[ 1294.855848][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1294.855848][   T73] 
[ 1294.857860][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1294.857860][   T73]      netdev_get_by_index+0x5e/0x80
[ 1294.857860][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1294.857860][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1294.857860][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1294.857860][   T73]      ipv6_add_addr+0x411/0x2000
[ 1294.857860][   T73]      inet6_addr_add+0x30e/0xa40
[ 1294.857860][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1294.857860][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1294.857860][   T73]      netlink_rcv_skb+0x130/0x360
[ 1294.857860][   T73]      netlink_unicast+0x449/0x710
[ 1294.857860][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1294.857860][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1294.857860][   T73]      ___sys_sendmsg+0xee/0x170
[ 1294.857860][   T73]      __sys_sendmsg+0xcd/0x170
[ 1294.857860][   T73]      do_syscall_64+0xc6/0x1e0
[ 1294.857860][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1294.857860][   T73] 
[ 1294.859884][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1294.859884][   T73]      netdev_get_by_index+0x5e/0x80
[ 1294.859884][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1294.859884][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1294.859884][   T73]      ip6_route_add+0x1c/0x140
[ 1294.859884][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1294.859884][   T73]      addrconf_add_dev+0xe2/0x170
[ 1294.859884][   T73]      inet6_addr_add+0x12f/0xa40
[ 1294.859884][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1294.859884][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1294.859884][   T73]      netlink_rcv_skb+0x130/0x360
[ 1294.859884][   T73]      netlink_unicast+0x449/0x710
[ 1294.859884][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1294.859884][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1294.859884][   T73]      ___sys_sendmsg+0xee/0x170
[ 1294.859884][   T73]      __sys_sendmsg+0xcd/0x170
[ 1294.859884][   T73]      do_syscall_64+0xc6/0x1e0
[ 1294.859884][   T73] 
[ 1294.861855][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1294.861855][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1294.861855][   T73]      ipv6_find_idev+0x102/0x170
[ 1294.861855][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1294.861855][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1294.861855][   T73]      netlink_rcv_skb+0x130/0x360
[ 1294.861855][   T73]      netlink_unicast+0x449/0x710
[ 1294.861855][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1294.861855][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1294.861855][   T73]      ___sys_sendmsg+0xee/0x170
[ 1294.861855][   T73]      __sys_sendmsg+0xcd/0x170
[ 1294.861855][   T73]      do_syscall_64+0xc6/0x1e0
[ 1294.861855][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1294.861855][   T73] 
[ 1294.863404][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1294.863404][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1294.863404][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1294.863404][   T73]      ipv6_find_idev+0x102/0x170
[ 1294.863404][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1294.863404][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1294.863404][   T73]      netlink_rcv_skb+0x130/0x360
[ 1294.863404][   T73]      netlink_unicast+0x449/0x710
[ 1294.863404][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1294.863404][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1294.863404][   T73]      ___sys_sendmsg+0xee/0x170
[ 1294.863404][   T73]      __sys_sendmsg+0xcd/0x170
[ 1294.863404][   T73]      do_syscall_64+0xc6/0x1e0
[ 1294.863404][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1294.863404][   T73] 
[ 1294.865123][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1294.865391][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1294.865391][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1294.865391][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1294.865391][   T73]      fib6_nh_init+0xa22/0x1580
[ 1294.865391][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1294.865391][   T73]      ip6_route_add+0x1c/0x140
[ 1294.865391][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1294.865391][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1294.865391][   T73]      netlink_rcv_skb+0x130/0x360
[ 1294.865391][   T73]      netlink_unicast+0x449/0x710
[ 1294.865391][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1294.865391][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1294.865391][   T73]      ___sys_sendmsg+0xee/0x170
[ 1294.865391][   T73]      __sys_sendmsg+0xcd/0x170
[ 1294.865391][   T73]      do_syscall_64+0xc6/0x1e0
[ 1294.865391][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1294.865391][   T73] 
[ 1294.867472][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1294.867472][   T73]      dst_init+0x84/0x4a0
[ 1294.867472][   T73]      dst_alloc+0x97/0x150
[ 1294.867472][   T73]      ip6_dst_alloc+0x23/0x90
[ 1294.867472][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1294.867472][   T73]      ip6_pol_route+0x56f/0x840
[ 1294.867472][   T73]      fib6_rule_lookup+0x456/0x630
[ 1294.867472][   T73]      ip6_route_input+0x59c/0xa50
[ 1294.867472][   T73]      ipv6_rcv+0x397/0x810
[ 1294.867472][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1294.867472][   T73]      process_backlog+0x101/0x620
[ 1294.867472][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1294.867472][   T73]      net_rx_action+0x495/0xbe0
[ 1294.867472][   T73]      __do_softirq+0x1b5/0x7f6
[ 1294.867472][   T73] 
[ 1294.869325][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1294.869325][   T73]      netdev_get_by_index+0x5e/0x80
[ 1294.869325][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1294.869325][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1294.869325][   T73]      ip6_route_add+0x1c/0x140
[ 1294.869325][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1294.869325][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1294.869325][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1294.869325][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1294.869325][   T73]      netlink_rcv_skb+0x130/0x360
[ 1294.869325][   T73]      netlink_unicast+0x449/0x710
[ 1294.869325][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1294.869325][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1294.869325][   T73]      ___sys_sendmsg+0xee/0x170
[ 1294.869325][   T73]      __sys_sendmsg+0xcd/0x170
[ 1294.869325][   T73]      do_syscall_64+0xc6/0x1e0
[ 1294.869325][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1294.869325][   T73] 
[ 1294.871695][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1294.871695][   T73]      netdev_get_by_index+0x5e/0x80
[ 1294.871695][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1294.871695][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1294.871695][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1294.871695][   T73]      ipv6_add_addr+0x411/0x2000
[ 1294.871695][   T73]      inet6_addr_add+0x30e/0xa40
[ 1294.871695][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1294.871695][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1294.871695][   T73]      netlink_rcv_skb+0x130/0x360
[ 1294.871695][   T73]      netlink_unicast+0x449/0x710
[ 1294.871695][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1294.871695][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1294.871695][   T73]      ___sys_sendmsg+0xee/0x170
[ 1294.871695][   T73]      __sys_sendmsg+0xcd/0x170
[ 1294.871695][   T73]      do_syscall_64+0xc6/0x1e0
[ 1294.871695][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1294.871695][   T73] 
[ 1294.873964][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1294.873964][   T73]      netdev_get_by_index+0x5e/0x80
[ 1294.873964][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1294.873964][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1294.873964][   T73]      ip6_route_add+0x1c/0x140
[ 1294.873964][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1294.873964][   T73]      addrconf_add_dev+0xe2/0x170
[ 1294.873964][   T73]      inet6_addr_add+0x12f/0xa40
[ 1294.873964][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1294.873964][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1294.873964][   T73]      netlink_rcv_skb+0x130/0x360
[ 1294.873964][   T73]      netlink_unicast+0x449/0x710
[ 1294.873964][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1294.873964][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1294.873964][   T73]      ___sys_sendmsg+0xee/0x170
[ 1294.873964][   T73]      __sys_sendmsg+0xcd/0x170
[ 1294.873964][   T73]      do_syscall_64+0xc6/0x1e0
[ 1294.873964][   T73] 
[ 1294.876179][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1294.876179][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1294.876179][   T73]      ipv6_find_idev+0x102/0x170
[ 1294.876179][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1294.876179][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1294.876179][   T73]      netlink_rcv_skb+0x130/0x360
[ 1294.876179][   T73]      netlink_unicast+0x449/0x710
[ 1294.876179][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1294.876179][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1294.876179][   T73]      ___sys_sendmsg+0xee/0x170
[ 1294.876179][   T73]      __sys_sendmsg+0xcd/0x170
[ 1294.876179][   T73]      do_syscall_64+0xc6/0x1e0
[ 1294.876179][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1294.876179][   T73] 
[ 1294.877912][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1294.877912][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1294.877912][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1294.877912][   T73]      ipv6_find_idev+0x102/0x170
[ 1294.877912][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1294.877912][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1294.877912][   T73]      netlink_rcv_skb+0x130/0x360
[ 1294.877912][   T73]      netlink_unicast+0x449/0x710
[ 1294.877912][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1294.877912][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1294.877912][   T73]      ___sys_sendmsg+0xee/0x170
[ 1294.877912][   T73]      __sys_sendmsg+0xcd/0x170
[ 1294.877912][   T73]      do_syscall_64+0xc6/0x1e0
[ 1294.877912][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1294.877912][   T73] 
[ 1294.879881][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1294.880167][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1294.880167][   T73]      netdev_get_by_index+0x5e/0x80
[ 1294.880167][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1294.880167][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1294.880167][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1294.880167][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1294.880167][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1294.880167][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1294.880167][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1294.880167][   T73]      addrconf_dad_begin+0x310/0x670
[ 1294.880167][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1294.880167][   T73]      process_one_work+0x84d/0x18a0
[ 1294.880167][   T73]      worker_thread+0x587/0xd30
[ 1294.880167][   T73]      kthread+0x28a/0x350
[ 1294.880167][   T73]      ret_from_fork+0x31/0x70
[ 1294.880167][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1294.880167][   T73] 
[ 1294.882330][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1294.882330][   T73]      netdev_get_by_index+0x5e/0x80
[ 1294.882330][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1294.882330][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1294.882330][   T73]      ip6_route_add+0x1c/0x140
[ 1294.882330][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1294.882330][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1294.882330][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1294.882330][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1294.882330][   T73]      netlink_rcv_skb+0x130/0x360
[ 1294.882330][   T73]      netlink_unicast+0x449/0x710
[ 1294.882330][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1294.882330][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1294.882330][   T73]      ___sys_sendmsg+0xee/0x170
[ 1294.882330][   T73]      __sys_sendmsg+0xcd/0x170
[ 1294.882330][   T73]      do_syscall_64+0xc6/0x1e0
[ 1294.882330][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1294.882330][   T73] 
[ 1294.884647][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1294.884647][   T73]      netdev_get_by_index+0x5e/0x80
[ 1294.884647][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1294.884647][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1294.884647][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1294.884647][   T73]      ipv6_add_addr+0x411/0x2000
[ 1294.884647][   T73]      inet6_addr_add+0x30e/0xa40
[ 1294.884647][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1294.884647][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1294.884647][   T73]      netlink_rcv_skb+0x130/0x360
[ 1294.884647][   T73]      netlink_unicast+0x449/0x710
[ 1294.884647][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1294.884647][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1294.884647][   T73]      ___sys_sendmsg+0xee/0x170
[ 1294.884647][   T73]      __sys_sendmsg+0xcd/0x170
[ 1294.884647][   T73]      do_syscall_64+0xc6/0x1e0
[ 1294.884647][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1294.884647][   T73] 
[ 1294.886853][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1294.886853][   T73]      netdev_get_by_index+0x5e/0x80
[ 1294.886853][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1294.886853][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1294.886853][   T73]      ip6_route_add+0x1c/0x140
[ 1294.886853][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1294.886853][   T73]      addrconf_add_dev+0xe2/0x170
[ 1294.886853][   T73]      inet6_addr_add+0x12f/0xa40
[ 1294.886853][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1294.886853][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1294.886853][   T73]      netlink_rcv_skb+0x130/0x360
[ 1294.886853][   T73]      netlink_unicast+0x449/0x710
[ 1294.886853][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1294.886853][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1294.886853][   T73]      ___sys_sendmsg+0xee/0x170
[ 1294.886853][   T73]      __sys_sendmsg+0xcd/0x170
[ 1294.886853][   T73]      do_syscall_64+0xc6/0x1e0
[ 1294.886853][   T73] 
[ 1294.889092][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1294.889092][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1294.889092][   T73]      ipv6_find_idev+0x102/0x170
[ 1294.889092][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1294.889092][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1294.889092][   T73]      netlink_rcv_skb+0x130/0x360
[ 1294.889092][   T73]      netlink_unicast+0x449/0x710
[ 1294.889092][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1294.889092][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1294.889092][   T73]      ___sys_sendmsg+0xee/0x170
[ 1294.889092][   T73]      __sys_sendmsg+0xcd/0x170
[ 1294.889092][   T73]      do_syscall_64+0xc6/0x1e0
[ 1294.889092][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1294.889092][   T73] 
[ 1294.890821][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1294.890821][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1294.890821][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1294.890821][   T73]      ipv6_find_idev+0x102/0x170
[ 1294.890821][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1294.890821][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1294.890821][   T73]      netlink_rcv_skb+0x130/0x360
[ 1294.890821][   T73]      netlink_unicast+0x449/0x710
[ 1294.890821][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1294.890821][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1294.890821][   T73]      ___sys_sendmsg+0xee/0x170
[ 1294.890821][   T73]      __sys_sendmsg+0xcd/0x170
[ 1294.890821][   T73]      do_syscall_64+0xc6/0x1e0
[ 1294.890821][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1294.890821][   T73] 
[ 1304.935763][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1304.936257][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1304.936257][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1304.936257][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1304.936257][   T73]      fib6_nh_init+0xa22/0x1580
[ 1304.936257][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1304.936257][   T73]      ip6_route_add+0x1c/0x140
[ 1304.936257][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1304.936257][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1304.936257][   T73]      netlink_rcv_skb+0x130/0x360
[ 1304.936257][   T73]      netlink_unicast+0x449/0x710
[ 1304.936257][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1304.936257][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1304.936257][   T73]      ___sys_sendmsg+0xee/0x170
[ 1304.936257][   T73]      __sys_sendmsg+0xcd/0x170
[ 1304.936257][   T73]      do_syscall_64+0xc6/0x1e0
[ 1304.936257][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1304.936257][   T73] 
[ 1304.938168][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1304.938168][   T73]      dst_init+0x84/0x4a0
[ 1304.938168][   T73]      dst_alloc+0x97/0x150
[ 1304.938168][   T73]      ip6_dst_alloc+0x23/0x90
[ 1304.938168][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1304.938168][   T73]      ip6_pol_route+0x56f/0x840
[ 1304.938168][   T73]      fib6_rule_lookup+0x456/0x630
[ 1304.938168][   T73]      ip6_route_input+0x59c/0xa50
[ 1304.938168][   T73]      ipv6_rcv+0x397/0x810
[ 1304.938168][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1304.938168][   T73]      process_backlog+0x101/0x620
[ 1304.938168][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1304.938168][   T73]      net_rx_action+0x495/0xbe0
[ 1304.938168][   T73]      __do_softirq+0x1b5/0x7f6
[ 1304.938168][   T73] 
[ 1304.939825][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1304.939825][   T73]      netdev_get_by_index+0x5e/0x80
[ 1304.939825][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1304.939825][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1304.939825][   T73]      ip6_route_add+0x1c/0x140
[ 1304.939825][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1304.939825][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1304.939825][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1304.939825][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1304.939825][   T73]      netlink_rcv_skb+0x130/0x360
[ 1304.939825][   T73]      netlink_unicast+0x449/0x710
[ 1304.939825][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1304.939825][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1304.939825][   T73]      ___sys_sendmsg+0xee/0x170
[ 1304.939825][   T73]      __sys_sendmsg+0xcd/0x170
[ 1304.939825][   T73]      do_syscall_64+0xc6/0x1e0
[ 1304.939825][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1304.939825][   T73] 
[ 1304.941832][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1304.941832][   T73]      netdev_get_by_index+0x5e/0x80
[ 1304.941832][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1304.941832][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1304.941832][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1304.941832][   T73]      ipv6_add_addr+0x411/0x2000
[ 1304.941832][   T73]      inet6_addr_add+0x30e/0xa40
[ 1304.941832][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1304.941832][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1304.941832][   T73]      netlink_rcv_skb+0x130/0x360
[ 1304.941832][   T73]      netlink_unicast+0x449/0x710
[ 1304.941832][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1304.941832][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1304.941832][   T73]      ___sys_sendmsg+0xee/0x170
[ 1304.941832][   T73]      __sys_sendmsg+0xcd/0x170
[ 1304.941832][   T73]      do_syscall_64+0xc6/0x1e0
[ 1304.941832][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1304.941832][   T73] 
[ 1304.943829][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1304.943829][   T73]      netdev_get_by_index+0x5e/0x80
[ 1304.943829][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1304.943829][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1304.943829][   T73]      ip6_route_add+0x1c/0x140
[ 1304.943829][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1304.943829][   T73]      addrconf_add_dev+0xe2/0x170
[ 1304.943829][   T73]      inet6_addr_add+0x12f/0xa40
[ 1304.943829][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1304.943829][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1304.943829][   T73]      netlink_rcv_skb+0x130/0x360
[ 1304.943829][   T73]      netlink_unicast+0x449/0x710
[ 1304.943829][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1304.943829][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1304.943829][   T73]      ___sys_sendmsg+0xee/0x170
[ 1304.943829][   T73]      __sys_sendmsg+0xcd/0x170
[ 1304.943829][   T73]      do_syscall_64+0xc6/0x1e0
[ 1304.943829][   T73] 
[ 1304.945789][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1304.945789][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1304.945789][   T73]      ipv6_find_idev+0x102/0x170
[ 1304.945789][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1304.945789][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1304.945789][   T73]      netlink_rcv_skb+0x130/0x360
[ 1304.945789][   T73]      netlink_unicast+0x449/0x710
[ 1304.945789][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1304.945789][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1304.945789][   T73]      ___sys_sendmsg+0xee/0x170
[ 1304.945789][   T73]      __sys_sendmsg+0xcd/0x170
[ 1304.945789][   T73]      do_syscall_64+0xc6/0x1e0
[ 1304.945789][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1304.945789][   T73] 
[ 1304.947332][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1304.947332][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1304.947332][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1304.947332][   T73]      ipv6_find_idev+0x102/0x170
[ 1304.947332][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1304.947332][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1304.947332][   T73]      netlink_rcv_skb+0x130/0x360
[ 1304.947332][   T73]      netlink_unicast+0x449/0x710
[ 1304.947332][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1304.947332][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1304.947332][   T73]      ___sys_sendmsg+0xee/0x170
[ 1304.947332][   T73]      __sys_sendmsg+0xcd/0x170
[ 1304.947332][   T73]      do_syscall_64+0xc6/0x1e0
[ 1304.947332][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1304.947332][   T73] 
[ 1304.949029][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1304.949314][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1304.949314][   T73]      netdev_get_by_index+0x5e/0x80
[ 1304.949314][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1304.949314][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1304.949314][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1304.949314][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1304.949314][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1304.949314][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1304.949314][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1304.949314][   T73]      addrconf_dad_begin+0x310/0x670
[ 1304.949314][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1304.949314][   T73]      process_one_work+0x84d/0x18a0
[ 1304.949314][   T73]      worker_thread+0x587/0xd30
[ 1304.949314][   T73]      kthread+0x28a/0x350
[ 1304.949314][   T73]      ret_from_fork+0x31/0x70
[ 1304.949314][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1304.949314][   T73] 
[ 1304.951230][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1304.951230][   T73]      netdev_get_by_index+0x5e/0x80
[ 1304.951230][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1304.951230][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1304.951230][   T73]      ip6_route_add+0x1c/0x140
[ 1304.951230][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1304.951230][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1304.951230][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1304.951230][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1304.951230][   T73]      netlink_rcv_skb+0x130/0x360
[ 1304.951230][   T73]      netlink_unicast+0x449/0x710
[ 1304.951230][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1304.951230][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1304.951230][   T73]      ___sys_sendmsg+0xee/0x170
[ 1304.951230][   T73]      __sys_sendmsg+0xcd/0x170
[ 1304.951230][   T73]      do_syscall_64+0xc6/0x1e0
[ 1304.951230][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1304.951230][   T73] 
[ 1304.953244][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1304.953244][   T73]      netdev_get_by_index+0x5e/0x80
[ 1304.953244][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1304.953244][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1304.953244][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1304.953244][   T73]      ipv6_add_addr+0x411/0x2000
[ 1304.953244][   T73]      inet6_addr_add+0x30e/0xa40
[ 1304.953244][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1304.953244][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1304.953244][   T73]      netlink_rcv_skb+0x130/0x360
[ 1304.953244][   T73]      netlink_unicast+0x449/0x710
[ 1304.953244][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1304.953244][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1304.953244][   T73]      ___sys_sendmsg+0xee/0x170
[ 1304.953244][   T73]      __sys_sendmsg+0xcd/0x170
[ 1304.953244][   T73]      do_syscall_64+0xc6/0x1e0
[ 1304.953244][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1304.953244][   T73] 
[ 1304.955238][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1304.955238][   T73]      netdev_get_by_index+0x5e/0x80
[ 1304.955238][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1304.955238][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1304.955238][   T73]      ip6_route_add+0x1c/0x140
[ 1304.955238][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1304.955238][   T73]      addrconf_add_dev+0xe2/0x170
[ 1304.955238][   T73]      inet6_addr_add+0x12f/0xa40
[ 1304.955238][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1304.955238][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1304.955238][   T73]      netlink_rcv_skb+0x130/0x360
[ 1304.955238][   T73]      netlink_unicast+0x449/0x710
[ 1304.955238][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1304.955238][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1304.955238][   T73]      ___sys_sendmsg+0xee/0x170
[ 1304.955238][   T73]      __sys_sendmsg+0xcd/0x170
[ 1304.955238][   T73]      do_syscall_64+0xc6/0x1e0
[ 1304.955238][   T73] 
[ 1304.957197][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1304.957197][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1304.957197][   T73]      ipv6_find_idev+0x102/0x170
[ 1304.957197][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1304.957197][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1304.957197][   T73]      netlink_rcv_skb+0x130/0x360
[ 1304.957197][   T73]      netlink_unicast+0x449/0x710
[ 1304.957197][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1304.957197][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1304.957197][   T73]      ___sys_sendmsg+0xee/0x170
[ 1304.957197][   T73]      __sys_sendmsg+0xcd/0x170
[ 1304.957197][   T73]      do_syscall_64+0xc6/0x1e0
[ 1304.957197][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1304.957197][   T73] 
[ 1304.958738][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1304.958738][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1304.958738][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1304.958738][   T73]      ipv6_find_idev+0x102/0x170
[ 1304.958738][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1304.958738][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1304.958738][   T73]      netlink_rcv_skb+0x130/0x360
[ 1304.958738][   T73]      netlink_unicast+0x449/0x710
[ 1304.958738][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1304.958738][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1304.958738][   T73]      ___sys_sendmsg+0xee/0x170
[ 1304.958738][   T73]      __sys_sendmsg+0xcd/0x170
[ 1304.958738][   T73]      do_syscall_64+0xc6/0x1e0
[ 1304.958738][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1304.958738][   T73] 
[ 1304.960426][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1304.960704][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1304.960704][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1304.960704][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1304.960704][   T73]      fib6_nh_init+0xa22/0x1580
[ 1304.960704][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1304.960704][   T73]      ip6_route_add+0x1c/0x140
[ 1304.960704][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1304.960704][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1304.960704][   T73]      netlink_rcv_skb+0x130/0x360
[ 1304.960704][   T73]      netlink_unicast+0x449/0x710
[ 1304.960704][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1304.960704][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1304.960704][   T73]      ___sys_sendmsg+0xee/0x170
[ 1304.960704][   T73]      __sys_sendmsg+0xcd/0x170
[ 1304.960704][   T73]      do_syscall_64+0xc6/0x1e0
[ 1304.960704][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1304.960704][   T73] 
[ 1304.962766][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1304.962766][   T73]      dst_init+0x84/0x4a0
[ 1304.962766][   T73]      dst_alloc+0x97/0x150
[ 1304.962766][   T73]      ip6_dst_alloc+0x23/0x90
[ 1304.962766][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1304.962766][   T73]      ip6_pol_route+0x56f/0x840
[ 1304.962766][   T73]      fib6_rule_lookup+0x456/0x630
[ 1304.962766][   T73]      ip6_route_input+0x59c/0xa50
[ 1304.962766][   T73]      ipv6_rcv+0x397/0x810
[ 1304.962766][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1304.962766][   T73]      process_backlog+0x101/0x620
[ 1304.962766][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1304.962766][   T73]      net_rx_action+0x495/0xbe0
[ 1304.962766][   T73]      __do_softirq+0x1b5/0x7f6
[ 1304.962766][   T73] 
[ 1304.964582][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1304.964582][   T73]      netdev_get_by_index+0x5e/0x80
[ 1304.964582][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1304.964582][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1304.964582][   T73]      ip6_route_add+0x1c/0x140
[ 1304.964582][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1304.964582][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1304.964582][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1304.964582][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1304.964582][   T73]      netlink_rcv_skb+0x130/0x360
[ 1304.964582][   T73]      netlink_unicast+0x449/0x710
[ 1304.964582][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1304.964582][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1304.964582][   T73]      ___sys_sendmsg+0xee/0x170
[ 1304.964582][   T73]      __sys_sendmsg+0xcd/0x170
[ 1304.964582][   T73]      do_syscall_64+0xc6/0x1e0
[ 1304.964582][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1304.964582][   T73] 
[ 1304.966817][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1304.966817][   T73]      netdev_get_by_index+0x5e/0x80
[ 1304.966817][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1304.966817][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1304.966817][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1304.966817][   T73]      ipv6_add_addr+0x411/0x2000
[ 1304.966817][   T73]      inet6_addr_add+0x30e/0xa40
[ 1304.966817][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1304.966817][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1304.966817][   T73]      netlink_rcv_skb+0x130/0x360
[ 1304.966817][   T73]      netlink_unicast+0x449/0x710
[ 1304.966817][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1304.966817][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1304.966817][   T73]      ___sys_sendmsg+0xee/0x170
[ 1304.966817][   T73]      __sys_sendmsg+0xcd/0x170
[ 1304.966817][   T73]      do_syscall_64+0xc6/0x1e0
[ 1304.966817][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1304.966817][   T73] 
[ 1304.969065][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1304.969065][   T73]      netdev_get_by_index+0x5e/0x80
[ 1304.969065][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1304.969065][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1304.969065][   T73]      ip6_route_add+0x1c/0x140
[ 1304.969065][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1304.969065][   T73]      addrconf_add_dev+0xe2/0x170
[ 1304.969065][   T73]      inet6_addr_add+0x12f/0xa40
[ 1304.969065][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1304.969065][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1304.969065][   T73]      netlink_rcv_skb+0x130/0x360
[ 1304.969065][   T73]      netlink_unicast+0x449/0x710
[ 1304.969065][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1304.969065][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1304.969065][   T73]      ___sys_sendmsg+0xee/0x170
[ 1304.969065][   T73]      __sys_sendmsg+0xcd/0x170
[ 1304.969065][   T73]      do_syscall_64+0xc6/0x1e0
[ 1304.969065][   T73] 
[ 1304.971272][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1304.971272][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1304.971272][   T73]      ipv6_find_idev+0x102/0x170
[ 1304.971272][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1304.971272][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1304.971272][   T73]      netlink_rcv_skb+0x130/0x360
[ 1304.971272][   T73]      netlink_unicast+0x449/0x710
[ 1304.971272][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1304.971272][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1304.971272][   T73]      ___sys_sendmsg+0xee/0x170
[ 1304.971272][   T73]      __sys_sendmsg+0xcd/0x170
[ 1304.971272][   T73]      do_syscall_64+0xc6/0x1e0
[ 1304.971272][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1304.971272][   T73] 
[ 1304.972993][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1304.972993][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1304.972993][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1304.972993][   T73]      ipv6_find_idev+0x102/0x170
[ 1304.972993][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1304.972993][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1304.972993][   T73]      netlink_rcv_skb+0x130/0x360
[ 1304.972993][   T73]      netlink_unicast+0x449/0x710
[ 1304.972993][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1304.972993][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1304.972993][   T73]      ___sys_sendmsg+0xee/0x170
[ 1304.972993][   T73]      __sys_sendmsg+0xcd/0x170
[ 1304.972993][   T73]      do_syscall_64+0xc6/0x1e0
[ 1304.972993][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1304.972993][   T73] 
[ 1304.974859][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1304.975197][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1304.975197][   T73]      netdev_get_by_index+0x5e/0x80
[ 1304.975197][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1304.975197][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1304.975197][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1304.975197][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1304.975197][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1304.975197][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1304.975197][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1304.975197][   T73]      addrconf_dad_begin+0x310/0x670
[ 1304.975197][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1304.975197][   T73]      process_one_work+0x84d/0x18a0
[ 1304.975197][   T73]      worker_thread+0x587/0xd30
[ 1304.975197][   T73]      kthread+0x28a/0x350
[ 1304.975197][   T73]      ret_from_fork+0x31/0x70
[ 1304.975197][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1304.975197][   T73] 
[ 1304.977282][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1304.977282][   T73]      netdev_get_by_index+0x5e/0x80
[ 1304.977282][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1304.977282][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1304.977282][   T73]      ip6_route_add+0x1c/0x140
[ 1304.977282][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1304.977282][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1304.977282][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1304.977282][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1304.977282][   T73]      netlink_rcv_skb+0x130/0x360
[ 1304.977282][   T73]      netlink_unicast+0x449/0x710
[ 1304.977282][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1304.977282][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1304.977282][   T73]      ___sys_sendmsg+0xee/0x170
[ 1304.977282][   T73]      __sys_sendmsg+0xcd/0x170
[ 1304.977282][   T73]      do_syscall_64+0xc6/0x1e0
[ 1304.977282][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1304.977282][   T73] 
[ 1304.979545][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1304.979545][   T73]      netdev_get_by_index+0x5e/0x80
[ 1304.979545][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1304.979545][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1304.979545][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1304.979545][   T73]      ipv6_add_addr+0x411/0x2000
[ 1304.979545][   T73]      inet6_addr_add+0x30e/0xa40
[ 1304.979545][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1304.979545][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1304.979545][   T73]      netlink_rcv_skb+0x130/0x360
[ 1304.979545][   T73]      netlink_unicast+0x449/0x710
[ 1304.979545][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1304.979545][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1304.979545][   T73]      ___sys_sendmsg+0xee/0x170
[ 1304.979545][   T73]      __sys_sendmsg+0xcd/0x170
[ 1304.979545][   T73]      do_syscall_64+0xc6/0x1e0
[ 1304.979545][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1304.979545][   T73] 
[ 1304.981777][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1304.981777][   T73]      netdev_get_by_index+0x5e/0x80
[ 1304.981777][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1304.981777][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1304.981777][   T73]      ip6_route_add+0x1c/0x140
[ 1304.981777][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1304.981777][   T73]      addrconf_add_dev+0xe2/0x170
[ 1304.981777][   T73]      inet6_addr_add+0x12f/0xa40
[ 1304.981777][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1304.981777][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1304.981777][   T73]      netlink_rcv_skb+0x130/0x360
[ 1304.981777][   T73]      netlink_unicast+0x449/0x710
[ 1304.981777][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1304.981777][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1304.981777][   T73]      ___sys_sendmsg+0xee/0x170
[ 1304.981777][   T73]      __sys_sendmsg+0xcd/0x170
[ 1304.981777][   T73]      do_syscall_64+0xc6/0x1e0
[ 1304.981777][   T73] 
[ 1304.983976][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1304.983976][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1304.983976][   T73]      ipv6_find_idev+0x102/0x170
[ 1304.983976][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1304.983976][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1304.983976][   T73]      netlink_rcv_skb+0x130/0x360
[ 1304.983976][   T73]      netlink_unicast+0x449/0x710
[ 1304.983976][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1304.983976][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1304.983976][   T73]      ___sys_sendmsg+0xee/0x170
[ 1304.983976][   T73]      __sys_sendmsg+0xcd/0x170
[ 1304.983976][   T73]      do_syscall_64+0xc6/0x1e0
[ 1304.983976][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1304.983976][   T73] 
[ 1304.985752][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1304.985752][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1304.985752][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1304.985752][   T73]      ipv6_find_idev+0x102/0x170
[ 1304.985752][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1304.985752][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1304.985752][   T73]      netlink_rcv_skb+0x130/0x360
[ 1304.985752][   T73]      netlink_unicast+0x449/0x710
[ 1304.985752][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1304.985752][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1304.985752][   T73]      ___sys_sendmsg+0xee/0x170
[ 1304.985752][   T73]      __sys_sendmsg+0xcd/0x170
[ 1304.985752][   T73]      do_syscall_64+0xc6/0x1e0
[ 1304.985752][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1304.985752][   T73] 
[ 1315.239882][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1315.240399][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1315.240399][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1315.240399][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1315.240399][   T73]      fib6_nh_init+0xa22/0x1580
[ 1315.240399][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1315.240399][   T73]      ip6_route_add+0x1c/0x140
[ 1315.240399][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1315.240399][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1315.240399][   T73]      netlink_rcv_skb+0x130/0x360
[ 1315.240399][   T73]      netlink_unicast+0x449/0x710
[ 1315.240399][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1315.240399][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1315.240399][   T73]      ___sys_sendmsg+0xee/0x170
[ 1315.240399][   T73]      __sys_sendmsg+0xcd/0x170
[ 1315.240399][   T73]      do_syscall_64+0xc6/0x1e0
[ 1315.240399][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1315.240399][   T73] 
[ 1315.242300][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1315.242300][   T73]      dst_init+0x84/0x4a0
[ 1315.242300][   T73]      dst_alloc+0x97/0x150
[ 1315.242300][   T73]      ip6_dst_alloc+0x23/0x90
[ 1315.242300][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1315.242300][   T73]      ip6_pol_route+0x56f/0x840
[ 1315.242300][   T73]      fib6_rule_lookup+0x456/0x630
[ 1315.242300][   T73]      ip6_route_input+0x59c/0xa50
[ 1315.242300][   T73]      ipv6_rcv+0x397/0x810
[ 1315.242300][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1315.242300][   T73]      process_backlog+0x101/0x620
[ 1315.242300][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1315.242300][   T73]      net_rx_action+0x495/0xbe0
[ 1315.242300][   T73]      __do_softirq+0x1b5/0x7f6
[ 1315.242300][   T73] 
[ 1315.243937][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1315.243937][   T73]      netdev_get_by_index+0x5e/0x80
[ 1315.243937][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1315.243937][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1315.243937][   T73]      ip6_route_add+0x1c/0x140
[ 1315.243937][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1315.243937][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1315.243937][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1315.243937][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1315.243937][   T73]      netlink_rcv_skb+0x130/0x360
[ 1315.243937][   T73]      netlink_unicast+0x449/0x710
[ 1315.243937][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1315.243937][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1315.243937][   T73]      ___sys_sendmsg+0xee/0x170
[ 1315.243937][   T73]      __sys_sendmsg+0xcd/0x170
[ 1315.243937][   T73]      do_syscall_64+0xc6/0x1e0
[ 1315.243937][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1315.243937][   T73] 
[ 1315.245933][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1315.245933][   T73]      netdev_get_by_index+0x5e/0x80
[ 1315.245933][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1315.245933][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1315.245933][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1315.245933][   T73]      ipv6_add_addr+0x411/0x2000
[ 1315.245933][   T73]      inet6_addr_add+0x30e/0xa40
[ 1315.245933][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1315.245933][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1315.245933][   T73]      netlink_rcv_skb+0x130/0x360
[ 1315.245933][   T73]      netlink_unicast+0x449/0x710
[ 1315.245933][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1315.245933][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1315.245933][   T73]      ___sys_sendmsg+0xee/0x170
[ 1315.245933][   T73]      __sys_sendmsg+0xcd/0x170
[ 1315.245933][   T73]      do_syscall_64+0xc6/0x1e0
[ 1315.245933][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1315.245933][   T73] 
[ 1315.247931][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1315.247931][   T73]      netdev_get_by_index+0x5e/0x80
[ 1315.247931][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1315.247931][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1315.247931][   T73]      ip6_route_add+0x1c/0x140
[ 1315.247931][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1315.247931][   T73]      addrconf_add_dev+0xe2/0x170
[ 1315.247931][   T73]      inet6_addr_add+0x12f/0xa40
[ 1315.247931][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1315.247931][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1315.247931][   T73]      netlink_rcv_skb+0x130/0x360
[ 1315.247931][   T73]      netlink_unicast+0x449/0x710
[ 1315.247931][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1315.247931][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1315.247931][   T73]      ___sys_sendmsg+0xee/0x170
[ 1315.247931][   T73]      __sys_sendmsg+0xcd/0x170
[ 1315.247931][   T73]      do_syscall_64+0xc6/0x1e0
[ 1315.247931][   T73] 
[ 1315.249914][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1315.249914][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1315.249914][   T73]      ipv6_find_idev+0x102/0x170
[ 1315.249914][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1315.249914][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1315.249914][   T73]      netlink_rcv_skb+0x130/0x360
[ 1315.249914][   T73]      netlink_unicast+0x449/0x710
[ 1315.249914][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1315.249914][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1315.249914][   T73]      ___sys_sendmsg+0xee/0x170
[ 1315.249914][   T73]      __sys_sendmsg+0xcd/0x170
[ 1315.249914][   T73]      do_syscall_64+0xc6/0x1e0
[ 1315.249914][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1315.249914][   T73] 
[ 1315.251455][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1315.251455][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1315.251455][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1315.251455][   T73]      ipv6_find_idev+0x102/0x170
[ 1315.251455][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1315.251455][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1315.251455][   T73]      netlink_rcv_skb+0x130/0x360
[ 1315.251455][   T73]      netlink_unicast+0x449/0x710
[ 1315.251455][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1315.251455][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1315.251455][   T73]      ___sys_sendmsg+0xee/0x170
[ 1315.251455][   T73]      __sys_sendmsg+0xcd/0x170
[ 1315.251455][   T73]      do_syscall_64+0xc6/0x1e0
[ 1315.251455][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1315.251455][   T73] 
[ 1315.253151][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1315.253438][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1315.253438][   T73]      netdev_get_by_index+0x5e/0x80
[ 1315.253438][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1315.253438][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1315.253438][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1315.253438][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1315.253438][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1315.253438][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1315.253438][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1315.253438][   T73]      addrconf_dad_begin+0x310/0x670
[ 1315.253438][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1315.253438][   T73]      process_one_work+0x84d/0x18a0
[ 1315.253438][   T73]      worker_thread+0x587/0xd30
[ 1315.253438][   T73]      kthread+0x28a/0x350
[ 1315.253438][   T73]      ret_from_fork+0x31/0x70
[ 1315.253438][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1315.253438][   T73] 
[ 1315.255370][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1315.255370][   T73]      netdev_get_by_index+0x5e/0x80
[ 1315.255370][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1315.255370][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1315.255370][   T73]      ip6_route_add+0x1c/0x140
[ 1315.255370][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1315.255370][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1315.255370][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1315.255370][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1315.255370][   T73]      netlink_rcv_skb+0x130/0x360
[ 1315.255370][   T73]      netlink_unicast+0x449/0x710
[ 1315.255370][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1315.255370][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1315.255370][   T73]      ___sys_sendmsg+0xee/0x170
[ 1315.255370][   T73]      __sys_sendmsg+0xcd/0x170
[ 1315.255370][   T73]      do_syscall_64+0xc6/0x1e0
[ 1315.255370][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1315.255370][   T73] 
[ 1315.257365][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1315.257365][   T73]      netdev_get_by_index+0x5e/0x80
[ 1315.257365][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1315.257365][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1315.257365][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1315.257365][   T73]      ipv6_add_addr+0x411/0x2000
[ 1315.257365][   T73]      inet6_addr_add+0x30e/0xa40
[ 1315.257365][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1315.257365][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1315.257365][   T73]      netlink_rcv_skb+0x130/0x360
[ 1315.257365][   T73]      netlink_unicast+0x449/0x710
[ 1315.257365][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1315.257365][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1315.257365][   T73]      ___sys_sendmsg+0xee/0x170
[ 1315.257365][   T73]      __sys_sendmsg+0xcd/0x170
[ 1315.257365][   T73]      do_syscall_64+0xc6/0x1e0
[ 1315.257365][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1315.257365][   T73] 
[ 1315.259365][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1315.259365][   T73]      netdev_get_by_index+0x5e/0x80
[ 1315.259365][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1315.259365][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1315.259365][   T73]      ip6_route_add+0x1c/0x140
[ 1315.259365][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1315.259365][   T73]      addrconf_add_dev+0xe2/0x170
[ 1315.259365][   T73]      inet6_addr_add+0x12f/0xa40
[ 1315.259365][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1315.259365][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1315.259365][   T73]      netlink_rcv_skb+0x130/0x360
[ 1315.259365][   T73]      netlink_unicast+0x449/0x710
[ 1315.259365][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1315.259365][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1315.259365][   T73]      ___sys_sendmsg+0xee/0x170
[ 1315.259365][   T73]      __sys_sendmsg+0xcd/0x170
[ 1315.259365][   T73]      do_syscall_64+0xc6/0x1e0
[ 1315.259365][   T73] 
[ 1315.261317][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1315.261317][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1315.261317][   T73]      ipv6_find_idev+0x102/0x170
[ 1315.261317][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1315.261317][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1315.261317][   T73]      netlink_rcv_skb+0x130/0x360
[ 1315.261317][   T73]      netlink_unicast+0x449/0x710
[ 1315.261317][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1315.261317][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1315.261317][   T73]      ___sys_sendmsg+0xee/0x170
[ 1315.261317][   T73]      __sys_sendmsg+0xcd/0x170
[ 1315.261317][   T73]      do_syscall_64+0xc6/0x1e0
[ 1315.261317][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1315.261317][   T73] 
[ 1315.262854][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1315.262854][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1315.262854][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1315.262854][   T73]      ipv6_find_idev+0x102/0x170
[ 1315.262854][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1315.262854][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1315.262854][   T73]      netlink_rcv_skb+0x130/0x360
[ 1315.262854][   T73]      netlink_unicast+0x449/0x710
[ 1315.262854][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1315.262854][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1315.262854][   T73]      ___sys_sendmsg+0xee/0x170
[ 1315.262854][   T73]      __sys_sendmsg+0xcd/0x170
[ 1315.262854][   T73]      do_syscall_64+0xc6/0x1e0
[ 1315.262854][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1315.262854][   T73] 
[ 1315.264561][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1315.264859][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1315.264859][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1315.264859][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1315.264859][   T73]      fib6_nh_init+0xa22/0x1580
[ 1315.264859][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1315.264859][   T73]      ip6_route_add+0x1c/0x140
[ 1315.264859][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1315.264859][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1315.264859][   T73]      netlink_rcv_skb+0x130/0x360
[ 1315.264859][   T73]      netlink_unicast+0x449/0x710
[ 1315.264859][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1315.264859][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1315.264859][   T73]      ___sys_sendmsg+0xee/0x170
[ 1315.264859][   T73]      __sys_sendmsg+0xcd/0x170
[ 1315.264859][   T73]      do_syscall_64+0xc6/0x1e0
[ 1315.264859][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1315.264859][   T73] 
[ 1315.266931][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1315.266931][   T73]      dst_init+0x84/0x4a0
[ 1315.266931][   T73]      dst_alloc+0x97/0x150
[ 1315.266931][   T73]      ip6_dst_alloc+0x23/0x90
[ 1315.266931][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1315.266931][   T73]      ip6_pol_route+0x56f/0x840
[ 1315.266931][   T73]      fib6_rule_lookup+0x456/0x630
[ 1315.266931][   T73]      ip6_route_input+0x59c/0xa50
[ 1315.266931][   T73]      ipv6_rcv+0x397/0x810
[ 1315.266931][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1315.266931][   T73]      process_backlog+0x101/0x620
[ 1315.266931][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1315.266931][   T73]      net_rx_action+0x495/0xbe0
[ 1315.266931][   T73]      __do_softirq+0x1b5/0x7f6
[ 1315.266931][   T73] 
[ 1315.268749][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1315.268749][   T73]      netdev_get_by_index+0x5e/0x80
[ 1315.268749][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1315.268749][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1315.268749][   T73]      ip6_route_add+0x1c/0x140
[ 1315.268749][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1315.268749][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1315.268749][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1315.268749][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1315.268749][   T73]      netlink_rcv_skb+0x130/0x360
[ 1315.268749][   T73]      netlink_unicast+0x449/0x710
[ 1315.268749][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1315.268749][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1315.268749][   T73]      ___sys_sendmsg+0xee/0x170
[ 1315.268749][   T73]      __sys_sendmsg+0xcd/0x170
[ 1315.268749][   T73]      do_syscall_64+0xc6/0x1e0
[ 1315.268749][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1315.268749][   T73] 
[ 1315.270931][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1315.270931][   T73]      netdev_get_by_index+0x5e/0x80
[ 1315.270931][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1315.270931][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1315.270931][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1315.270931][   T73]      ipv6_add_addr+0x411/0x2000
[ 1315.270931][   T73]      inet6_addr_add+0x30e/0xa40
[ 1315.270931][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1315.270931][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1315.270931][   T73]      netlink_rcv_skb+0x130/0x360
[ 1315.270931][   T73]      netlink_unicast+0x449/0x710
[ 1315.270931][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1315.270931][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1315.270931][   T73]      ___sys_sendmsg+0xee/0x170
[ 1315.270931][   T73]      __sys_sendmsg+0xcd/0x170
[ 1315.270931][   T73]      do_syscall_64+0xc6/0x1e0
[ 1315.270931][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1315.270931][   T73] 
[ 1315.273171][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1315.273171][   T73]      netdev_get_by_index+0x5e/0x80
[ 1315.273171][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1315.273171][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1315.273171][   T73]      ip6_route_add+0x1c/0x140
[ 1315.273171][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1315.273171][   T73]      addrconf_add_dev+0xe2/0x170
[ 1315.273171][   T73]      inet6_addr_add+0x12f/0xa40
[ 1315.273171][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1315.273171][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1315.273171][   T73]      netlink_rcv_skb+0x130/0x360
[ 1315.273171][   T73]      netlink_unicast+0x449/0x710
[ 1315.273171][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1315.273171][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1315.273171][   T73]      ___sys_sendmsg+0xee/0x170
[ 1315.273171][   T73]      __sys_sendmsg+0xcd/0x170
[ 1315.273171][   T73]      do_syscall_64+0xc6/0x1e0
[ 1315.273171][   T73] 
[ 1315.275324][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1315.275324][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1315.275324][   T73]      ipv6_find_idev+0x102/0x170
[ 1315.275324][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1315.275324][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1315.275324][   T73]      netlink_rcv_skb+0x130/0x360
[ 1315.275324][   T73]      netlink_unicast+0x449/0x710
[ 1315.275324][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1315.275324][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1315.275324][   T73]      ___sys_sendmsg+0xee/0x170
[ 1315.275324][   T73]      __sys_sendmsg+0xcd/0x170
[ 1315.275324][   T73]      do_syscall_64+0xc6/0x1e0
[ 1315.275324][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1315.275324][   T73] 
[ 1315.277106][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1315.277106][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1315.277106][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1315.277106][   T73]      ipv6_find_idev+0x102/0x170
[ 1315.277106][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1315.277106][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1315.277106][   T73]      netlink_rcv_skb+0x130/0x360
[ 1315.277106][   T73]      netlink_unicast+0x449/0x710
[ 1315.277106][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1315.277106][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1315.277106][   T73]      ___sys_sendmsg+0xee/0x170
[ 1315.277106][   T73]      __sys_sendmsg+0xcd/0x170
[ 1315.277106][   T73]      do_syscall_64+0xc6/0x1e0
[ 1315.277106][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1315.277106][   T73] 
[ 1315.278981][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1315.279327][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1315.279327][   T73]      netdev_get_by_index+0x5e/0x80
[ 1315.279327][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1315.279327][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1315.279327][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1315.279327][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1315.279327][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1315.279327][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1315.279327][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1315.279327][   T73]      addrconf_dad_begin+0x310/0x670
[ 1315.279327][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1315.279327][   T73]      process_one_work+0x84d/0x18a0
[ 1315.279327][   T73]      worker_thread+0x587/0xd30
[ 1315.279327][   T73]      kthread+0x28a/0x350
[ 1315.279327][   T73]      ret_from_fork+0x31/0x70
[ 1315.279327][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1315.279327][   T73] 
[ 1315.281364][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1315.281364][   T73]      netdev_get_by_index+0x5e/0x80
[ 1315.281364][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1315.281364][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1315.281364][   T73]      ip6_route_add+0x1c/0x140
[ 1315.281364][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1315.281364][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1315.281364][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1315.281364][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1315.281364][   T73]      netlink_rcv_skb+0x130/0x360
[ 1315.281364][   T73]      netlink_unicast+0x449/0x710
[ 1315.281364][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1315.281364][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1315.281364][   T73]      ___sys_sendmsg+0xee/0x170
[ 1315.281364][   T73]      __sys_sendmsg+0xcd/0x170
[ 1315.281364][   T73]      do_syscall_64+0xc6/0x1e0
[ 1315.281364][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1315.281364][   T73] 
[ 1315.283610][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1315.283610][   T73]      netdev_get_by_index+0x5e/0x80
[ 1315.283610][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1315.283610][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1315.283610][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1315.283610][   T73]      ipv6_add_addr+0x411/0x2000
[ 1315.283610][   T73]      inet6_addr_add+0x30e/0xa40
[ 1315.283610][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1315.283610][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1315.283610][   T73]      netlink_rcv_skb+0x130/0x360
[ 1315.283610][   T73]      netlink_unicast+0x449/0x710
[ 1315.283610][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1315.283610][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1315.283610][   T73]      ___sys_sendmsg+0xee/0x170
[ 1315.283610][   T73]      __sys_sendmsg+0xcd/0x170
[ 1315.283610][   T73]      do_syscall_64+0xc6/0x1e0
[ 1315.283610][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1315.283610][   T73] 
[ 1315.285914][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1315.285914][   T73]      netdev_get_by_index+0x5e/0x80
[ 1315.285914][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1315.285914][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1315.285914][   T73]      ip6_route_add+0x1c/0x140
[ 1315.285914][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1315.285914][   T73]      addrconf_add_dev+0xe2/0x170
[ 1315.285914][   T73]      inet6_addr_add+0x12f/0xa40
[ 1315.285914][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1315.285914][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1315.285914][   T73]      netlink_rcv_skb+0x130/0x360
[ 1315.285914][   T73]      netlink_unicast+0x449/0x710
[ 1315.285914][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1315.285914][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1315.285914][   T73]      ___sys_sendmsg+0xee/0x170
[ 1315.285914][   T73]      __sys_sendmsg+0xcd/0x170
[ 1315.285914][   T73]      do_syscall_64+0xc6/0x1e0
[ 1315.285914][   T73] 
[ 1315.288119][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1315.288119][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1315.288119][   T73]      ipv6_find_idev+0x102/0x170
[ 1315.288119][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1315.288119][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1315.288119][   T73]      netlink_rcv_skb+0x130/0x360
[ 1315.288119][   T73]      netlink_unicast+0x449/0x710
[ 1315.288119][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1315.288119][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1315.288119][   T73]      ___sys_sendmsg+0xee/0x170
[ 1315.288119][   T73]      __sys_sendmsg+0xcd/0x170
[ 1315.288119][   T73]      do_syscall_64+0xc6/0x1e0
[ 1315.288119][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1315.288119][   T73] 
[ 1315.289846][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1315.289846][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1315.289846][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1315.289846][   T73]      ipv6_find_idev+0x102/0x170
[ 1315.289846][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1315.289846][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1315.289846][   T73]      netlink_rcv_skb+0x130/0x360
[ 1315.289846][   T73]      netlink_unicast+0x449/0x710
[ 1315.289846][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1315.289846][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1315.289846][   T73]      ___sys_sendmsg+0xee/0x170
[ 1315.289846][   T73]      __sys_sendmsg+0xcd/0x170
[ 1315.289846][   T73]      do_syscall_64+0xc6/0x1e0
[ 1315.289846][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1315.289846][   T73] 
[ 1325.311844][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1325.312354][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1325.312354][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1325.312354][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1325.312354][   T73]      fib6_nh_init+0xa22/0x1580
[ 1325.312354][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1325.312354][   T73]      ip6_route_add+0x1c/0x140
[ 1325.312354][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1325.312354][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1325.312354][   T73]      netlink_rcv_skb+0x130/0x360
[ 1325.312354][   T73]      netlink_unicast+0x449/0x710
[ 1325.312354][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1325.312354][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1325.312354][   T73]      ___sys_sendmsg+0xee/0x170
[ 1325.312354][   T73]      __sys_sendmsg+0xcd/0x170
[ 1325.312354][   T73]      do_syscall_64+0xc6/0x1e0
[ 1325.312354][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1325.312354][   T73] 
[ 1325.314245][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1325.314245][   T73]      dst_init+0x84/0x4a0
[ 1325.314245][   T73]      dst_alloc+0x97/0x150
[ 1325.314245][   T73]      ip6_dst_alloc+0x23/0x90
[ 1325.314245][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1325.314245][   T73]      ip6_pol_route+0x56f/0x840
[ 1325.314245][   T73]      fib6_rule_lookup+0x456/0x630
[ 1325.314245][   T73]      ip6_route_input+0x59c/0xa50
[ 1325.314245][   T73]      ipv6_rcv+0x397/0x810
[ 1325.314245][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1325.314245][   T73]      process_backlog+0x101/0x620
[ 1325.314245][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1325.314245][   T73]      net_rx_action+0x495/0xbe0
[ 1325.314245][   T73]      __do_softirq+0x1b5/0x7f6
[ 1325.314245][   T73] 
[ 1325.315882][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1325.315882][   T73]      netdev_get_by_index+0x5e/0x80
[ 1325.315882][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1325.315882][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1325.315882][   T73]      ip6_route_add+0x1c/0x140
[ 1325.315882][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1325.315882][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1325.315882][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1325.315882][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1325.315882][   T73]      netlink_rcv_skb+0x130/0x360
[ 1325.315882][   T73]      netlink_unicast+0x449/0x710
[ 1325.315882][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1325.315882][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1325.315882][   T73]      ___sys_sendmsg+0xee/0x170
[ 1325.315882][   T73]      __sys_sendmsg+0xcd/0x170
[ 1325.315882][   T73]      do_syscall_64+0xc6/0x1e0
[ 1325.315882][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1325.315882][   T73] 
[ 1325.317876][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1325.317876][   T73]      netdev_get_by_index+0x5e/0x80
[ 1325.317876][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1325.317876][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1325.317876][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1325.317876][   T73]      ipv6_add_addr+0x411/0x2000
[ 1325.317876][   T73]      inet6_addr_add+0x30e/0xa40
[ 1325.317876][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1325.317876][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1325.317876][   T73]      netlink_rcv_skb+0x130/0x360
[ 1325.317876][   T73]      netlink_unicast+0x449/0x710
[ 1325.317876][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1325.317876][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1325.317876][   T73]      ___sys_sendmsg+0xee/0x170
[ 1325.317876][   T73]      __sys_sendmsg+0xcd/0x170
[ 1325.317876][   T73]      do_syscall_64+0xc6/0x1e0
[ 1325.317876][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1325.317876][   T73] 
[ 1325.319882][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1325.319882][   T73]      netdev_get_by_index+0x5e/0x80
[ 1325.319882][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1325.319882][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1325.319882][   T73]      ip6_route_add+0x1c/0x140
[ 1325.319882][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1325.319882][   T73]      addrconf_add_dev+0xe2/0x170
[ 1325.319882][   T73]      inet6_addr_add+0x12f/0xa40
[ 1325.319882][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1325.319882][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1325.319882][   T73]      netlink_rcv_skb+0x130/0x360
[ 1325.319882][   T73]      netlink_unicast+0x449/0x710
[ 1325.319882][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1325.319882][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1325.319882][   T73]      ___sys_sendmsg+0xee/0x170
[ 1325.319882][   T73]      __sys_sendmsg+0xcd/0x170
[ 1325.319882][   T73]      do_syscall_64+0xc6/0x1e0
[ 1325.319882][   T73] 
[ 1325.321845][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1325.321845][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1325.321845][   T73]      ipv6_find_idev+0x102/0x170
[ 1325.321845][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1325.321845][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1325.321845][   T73]      netlink_rcv_skb+0x130/0x360
[ 1325.321845][   T73]      netlink_unicast+0x449/0x710
[ 1325.321845][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1325.321845][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1325.321845][   T73]      ___sys_sendmsg+0xee/0x170
[ 1325.321845][   T73]      __sys_sendmsg+0xcd/0x170
[ 1325.321845][   T73]      do_syscall_64+0xc6/0x1e0
[ 1325.321845][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1325.321845][   T73] 
[ 1325.323380][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1325.323380][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1325.323380][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1325.323380][   T73]      ipv6_find_idev+0x102/0x170
[ 1325.323380][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1325.323380][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1325.323380][   T73]      netlink_rcv_skb+0x130/0x360
[ 1325.323380][   T73]      netlink_unicast+0x449/0x710
[ 1325.323380][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1325.323380][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1325.323380][   T73]      ___sys_sendmsg+0xee/0x170
[ 1325.323380][   T73]      __sys_sendmsg+0xcd/0x170
[ 1325.323380][   T73]      do_syscall_64+0xc6/0x1e0
[ 1325.323380][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1325.323380][   T73] 
[ 1325.325078][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1325.325359][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1325.325359][   T73]      netdev_get_by_index+0x5e/0x80
[ 1325.325359][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1325.325359][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1325.325359][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1325.325359][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1325.325359][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1325.325359][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1325.325359][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1325.325359][   T73]      addrconf_dad_begin+0x310/0x670
[ 1325.325359][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1325.325359][   T73]      process_one_work+0x84d/0x18a0
[ 1325.325359][   T73]      worker_thread+0x587/0xd30
[ 1325.325359][   T73]      kthread+0x28a/0x350
[ 1325.325359][   T73]      ret_from_fork+0x31/0x70
[ 1325.325359][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1325.325359][   T73] 
[ 1325.327284][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1325.327284][   T73]      netdev_get_by_index+0x5e/0x80
[ 1325.327284][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1325.327284][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1325.327284][   T73]      ip6_route_add+0x1c/0x140
[ 1325.327284][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1325.327284][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1325.327284][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1325.327284][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1325.327284][   T73]      netlink_rcv_skb+0x130/0x360
[ 1325.327284][   T73]      netlink_unicast+0x449/0x710
[ 1325.327284][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1325.327284][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1325.327284][   T73]      ___sys_sendmsg+0xee/0x170
[ 1325.327284][   T73]      __sys_sendmsg+0xcd/0x170
[ 1325.327284][   T73]      do_syscall_64+0xc6/0x1e0
[ 1325.327284][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1325.327284][   T73] 
[ 1325.329286][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1325.329286][   T73]      netdev_get_by_index+0x5e/0x80
[ 1325.329286][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1325.329286][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1325.329286][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1325.329286][   T73]      ipv6_add_addr+0x411/0x2000
[ 1325.329286][   T73]      inet6_addr_add+0x30e/0xa40
[ 1325.329286][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1325.329286][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1325.329286][   T73]      netlink_rcv_skb+0x130/0x360
[ 1325.329286][   T73]      netlink_unicast+0x449/0x710
[ 1325.329286][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1325.329286][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1325.329286][   T73]      ___sys_sendmsg+0xee/0x170
[ 1325.329286][   T73]      __sys_sendmsg+0xcd/0x170
[ 1325.329286][   T73]      do_syscall_64+0xc6/0x1e0
[ 1325.329286][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1325.329286][   T73] 
[ 1325.331276][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1325.331276][   T73]      netdev_get_by_index+0x5e/0x80
[ 1325.331276][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1325.331276][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1325.331276][   T73]      ip6_route_add+0x1c/0x140
[ 1325.331276][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1325.331276][   T73]      addrconf_add_dev+0xe2/0x170
[ 1325.331276][   T73]      inet6_addr_add+0x12f/0xa40
[ 1325.331276][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1325.331276][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1325.331276][   T73]      netlink_rcv_skb+0x130/0x360
[ 1325.331276][   T73]      netlink_unicast+0x449/0x710
[ 1325.331276][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1325.331276][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1325.331276][   T73]      ___sys_sendmsg+0xee/0x170
[ 1325.331276][   T73]      __sys_sendmsg+0xcd/0x170
[ 1325.331276][   T73]      do_syscall_64+0xc6/0x1e0
[ 1325.331276][   T73] 
[ 1325.333233][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1325.333233][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1325.333233][   T73]      ipv6_find_idev+0x102/0x170
[ 1325.333233][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1325.333233][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1325.333233][   T73]      netlink_rcv_skb+0x130/0x360
[ 1325.333233][   T73]      netlink_unicast+0x449/0x710
[ 1325.333233][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1325.333233][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1325.333233][   T73]      ___sys_sendmsg+0xee/0x170
[ 1325.333233][   T73]      __sys_sendmsg+0xcd/0x170
[ 1325.333233][   T73]      do_syscall_64+0xc6/0x1e0
[ 1325.333233][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1325.333233][   T73] 
[ 1325.334779][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1325.334779][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1325.334779][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1325.334779][   T73]      ipv6_find_idev+0x102/0x170
[ 1325.334779][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1325.334779][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1325.334779][   T73]      netlink_rcv_skb+0x130/0x360
[ 1325.334779][   T73]      netlink_unicast+0x449/0x710
[ 1325.334779][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1325.334779][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1325.334779][   T73]      ___sys_sendmsg+0xee/0x170
[ 1325.334779][   T73]      __sys_sendmsg+0xcd/0x170
[ 1325.334779][   T73]      do_syscall_64+0xc6/0x1e0
[ 1325.334779][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1325.334779][   T73] 
[ 1325.336482][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1325.336765][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1325.336765][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1325.336765][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1325.336765][   T73]      fib6_nh_init+0xa22/0x1580
[ 1325.336765][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1325.336765][   T73]      ip6_route_add+0x1c/0x140
[ 1325.336765][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1325.336765][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1325.336765][   T73]      netlink_rcv_skb+0x130/0x360
[ 1325.336765][   T73]      netlink_unicast+0x449/0x710
[ 1325.336765][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1325.336765][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1325.336765][   T73]      ___sys_sendmsg+0xee/0x170
[ 1325.336765][   T73]      __sys_sendmsg+0xcd/0x170
[ 1325.336765][   T73]      do_syscall_64+0xc6/0x1e0
[ 1325.336765][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1325.336765][   T73] 
[ 1325.338834][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1325.338834][   T73]      dst_init+0x84/0x4a0
[ 1325.338834][   T73]      dst_alloc+0x97/0x150
[ 1325.338834][   T73]      ip6_dst_alloc+0x23/0x90
[ 1325.338834][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1325.338834][   T73]      ip6_pol_route+0x56f/0x840
[ 1325.338834][   T73]      fib6_rule_lookup+0x456/0x630
[ 1325.338834][   T73]      ip6_route_input+0x59c/0xa50
[ 1325.338834][   T73]      ipv6_rcv+0x397/0x810
[ 1325.338834][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1325.338834][   T73]      process_backlog+0x101/0x620
[ 1325.338834][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1325.338834][   T73]      net_rx_action+0x495/0xbe0
[ 1325.338834][   T73]      __do_softirq+0x1b5/0x7f6
[ 1325.338834][   T73] 
[ 1325.340645][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1325.340645][   T73]      netdev_get_by_index+0x5e/0x80
[ 1325.340645][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1325.340645][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1325.340645][   T73]      ip6_route_add+0x1c/0x140
[ 1325.340645][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1325.340645][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1325.340645][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1325.340645][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1325.340645][   T73]      netlink_rcv_skb+0x130/0x360
[ 1325.340645][   T73]      netlink_unicast+0x449/0x710
[ 1325.340645][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1325.340645][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1325.340645][   T73]      ___sys_sendmsg+0xee/0x170
[ 1325.340645][   T73]      __sys_sendmsg+0xcd/0x170
[ 1325.340645][   T73]      do_syscall_64+0xc6/0x1e0
[ 1325.340645][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1325.340645][   T73] 
[ 1325.342820][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1325.342820][   T73]      netdev_get_by_index+0x5e/0x80
[ 1325.342820][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1325.342820][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1325.342820][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1325.342820][   T73]      ipv6_add_addr+0x411/0x2000
[ 1325.342820][   T73]      inet6_addr_add+0x30e/0xa40
[ 1325.342820][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1325.342820][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1325.342820][   T73]      netlink_rcv_skb+0x130/0x360
[ 1325.342820][   T73]      netlink_unicast+0x449/0x710
[ 1325.342820][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1325.342820][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1325.342820][   T73]      ___sys_sendmsg+0xee/0x170
[ 1325.342820][   T73]      __sys_sendmsg+0xcd/0x170
[ 1325.342820][   T73]      do_syscall_64+0xc6/0x1e0
[ 1325.342820][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1325.342820][   T73] 
[ 1325.345114][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1325.345114][   T73]      netdev_get_by_index+0x5e/0x80
[ 1325.345114][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1325.345114][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1325.345114][   T73]      ip6_route_add+0x1c/0x140
[ 1325.345114][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1325.345114][   T73]      addrconf_add_dev+0xe2/0x170
[ 1325.345114][   T73]      inet6_addr_add+0x12f/0xa40
[ 1325.345114][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1325.345114][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1325.345114][   T73]      netlink_rcv_skb+0x130/0x360
[ 1325.345114][   T73]      netlink_unicast+0x449/0x710
[ 1325.345114][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1325.345114][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1325.345114][   T73]      ___sys_sendmsg+0xee/0x170
[ 1325.345114][   T73]      __sys_sendmsg+0xcd/0x170
[ 1325.345114][   T73]      do_syscall_64+0xc6/0x1e0
[ 1325.345114][   T73] 
[ 1325.347256][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1325.347256][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1325.347256][   T73]      ipv6_find_idev+0x102/0x170
[ 1325.347256][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1325.347256][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1325.347256][   T73]      netlink_rcv_skb+0x130/0x360
[ 1325.347256][   T73]      netlink_unicast+0x449/0x710
[ 1325.347256][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1325.347256][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1325.347256][   T73]      ___sys_sendmsg+0xee/0x170
[ 1325.347256][   T73]      __sys_sendmsg+0xcd/0x170
[ 1325.347256][   T73]      do_syscall_64+0xc6/0x1e0
[ 1325.347256][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1325.347256][   T73] 
[ 1325.348981][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1325.348981][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1325.348981][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1325.348981][   T73]      ipv6_find_idev+0x102/0x170
[ 1325.348981][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1325.348981][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1325.348981][   T73]      netlink_rcv_skb+0x130/0x360
[ 1325.348981][   T73]      netlink_unicast+0x449/0x710
[ 1325.348981][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1325.348981][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1325.348981][   T73]      ___sys_sendmsg+0xee/0x170
[ 1325.348981][   T73]      __sys_sendmsg+0xcd/0x170
[ 1325.348981][   T73]      do_syscall_64+0xc6/0x1e0
[ 1325.348981][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1325.348981][   T73] 
[ 1325.350844][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1325.351176][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1325.351176][   T73]      netdev_get_by_index+0x5e/0x80
[ 1325.351176][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1325.351176][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1325.351176][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1325.351176][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1325.351176][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1325.351176][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1325.351176][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1325.351176][   T73]      addrconf_dad_begin+0x310/0x670
[ 1325.351176][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1325.351176][   T73]      process_one_work+0x84d/0x18a0
[ 1325.351176][   T73]      worker_thread+0x587/0xd30
[ 1325.351176][   T73]      kthread+0x28a/0x350
[ 1325.351176][   T73]      ret_from_fork+0x31/0x70
[ 1325.351176][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1325.351176][   T73] 
[ 1325.353277][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1325.353277][   T73]      netdev_get_by_index+0x5e/0x80
[ 1325.353277][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1325.353277][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1325.353277][   T73]      ip6_route_add+0x1c/0x140
[ 1325.353277][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1325.353277][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1325.353277][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1325.353277][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1325.353277][   T73]      netlink_rcv_skb+0x130/0x360
[ 1325.353277][   T73]      netlink_unicast+0x449/0x710
[ 1325.353277][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1325.353277][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1325.353277][   T73]      ___sys_sendmsg+0xee/0x170
[ 1325.353277][   T73]      __sys_sendmsg+0xcd/0x170
[ 1325.353277][   T73]      do_syscall_64+0xc6/0x1e0
[ 1325.353277][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1325.353277][   T73] 
[ 1325.355512][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1325.355512][   T73]      netdev_get_by_index+0x5e/0x80
[ 1325.355512][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1325.355512][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1325.355512][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1325.355512][   T73]      ipv6_add_addr+0x411/0x2000
[ 1325.355512][   T73]      inet6_addr_add+0x30e/0xa40
[ 1325.355512][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1325.355512][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1325.355512][   T73]      netlink_rcv_skb+0x130/0x360
[ 1325.355512][   T73]      netlink_unicast+0x449/0x710
[ 1325.355512][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1325.355512][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1325.355512][   T73]      ___sys_sendmsg+0xee/0x170
[ 1325.355512][   T73]      __sys_sendmsg+0xcd/0x170
[ 1325.355512][   T73]      do_syscall_64+0xc6/0x1e0
[ 1325.355512][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1325.355512][   T73] 
[ 1325.357758][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1325.357758][   T73]      netdev_get_by_index+0x5e/0x80
[ 1325.357758][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1325.357758][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1325.357758][   T73]      ip6_route_add+0x1c/0x140
[ 1325.357758][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1325.357758][   T73]      addrconf_add_dev+0xe2/0x170
[ 1325.357758][   T73]      inet6_addr_add+0x12f/0xa40
[ 1325.357758][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1325.357758][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1325.357758][   T73]      netlink_rcv_skb+0x130/0x360
[ 1325.357758][   T73]      netlink_unicast+0x449/0x710
[ 1325.357758][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1325.357758][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1325.357758][   T73]      ___sys_sendmsg+0xee/0x170
[ 1325.357758][   T73]      __sys_sendmsg+0xcd/0x170
[ 1325.357758][   T73]      do_syscall_64+0xc6/0x1e0
[ 1325.357758][   T73] 
[ 1325.359967][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1325.359967][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1325.359967][   T73]      ipv6_find_idev+0x102/0x170
[ 1325.359967][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1325.359967][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1325.359967][   T73]      netlink_rcv_skb+0x130/0x360
[ 1325.359967][   T73]      netlink_unicast+0x449/0x710
[ 1325.359967][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1325.359967][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1325.359967][   T73]      ___sys_sendmsg+0xee/0x170
[ 1325.359967][   T73]      __sys_sendmsg+0xcd/0x170
[ 1325.359967][   T73]      do_syscall_64+0xc6/0x1e0
[ 1325.359967][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1325.359967][   T73] 
[ 1325.361683][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1325.361683][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1325.361683][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1325.361683][   T73]      ipv6_find_idev+0x102/0x170
[ 1325.361683][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1325.361683][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1325.361683][   T73]      netlink_rcv_skb+0x130/0x360
[ 1325.361683][   T73]      netlink_unicast+0x449/0x710
[ 1325.361683][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1325.361683][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1325.361683][   T73]      ___sys_sendmsg+0xee/0x170
[ 1325.361683][   T73]      __sys_sendmsg+0xcd/0x170
[ 1325.361683][   T73]      do_syscall_64+0xc6/0x1e0
[ 1325.361683][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1325.361683][   T73] 
[ 1335.599811][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1335.600245][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1335.600245][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1335.600245][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1335.600245][   T73]      fib6_nh_init+0xa22/0x1580
[ 1335.600245][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1335.600245][   T73]      ip6_route_add+0x1c/0x140
[ 1335.600245][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1335.600245][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1335.600245][   T73]      netlink_rcv_skb+0x130/0x360
[ 1335.600245][   T73]      netlink_unicast+0x449/0x710
[ 1335.600245][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1335.600245][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1335.600245][   T73]      ___sys_sendmsg+0xee/0x170
[ 1335.600245][   T73]      __sys_sendmsg+0xcd/0x170
[ 1335.600245][   T73]      do_syscall_64+0xc6/0x1e0
[ 1335.600245][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1335.600245][   T73] 
[ 1335.602181][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1335.602181][   T73]      dst_init+0x84/0x4a0
[ 1335.602181][   T73]      dst_alloc+0x97/0x150
[ 1335.602181][   T73]      ip6_dst_alloc+0x23/0x90
[ 1335.602181][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1335.602181][   T73]      ip6_pol_route+0x56f/0x840
[ 1335.602181][   T73]      fib6_rule_lookup+0x456/0x630
[ 1335.602181][   T73]      ip6_route_input+0x59c/0xa50
[ 1335.602181][   T73]      ipv6_rcv+0x397/0x810
[ 1335.602181][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1335.602181][   T73]      process_backlog+0x101/0x620
[ 1335.602181][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1335.602181][   T73]      net_rx_action+0x495/0xbe0
[ 1335.602181][   T73]      __do_softirq+0x1b5/0x7f6
[ 1335.602181][   T73] 
[ 1335.603983][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1335.603983][   T73]      netdev_get_by_index+0x5e/0x80
[ 1335.603983][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1335.603983][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1335.603983][   T73]      ip6_route_add+0x1c/0x140
[ 1335.603983][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1335.603983][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1335.603983][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1335.603983][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1335.603983][   T73]      netlink_rcv_skb+0x130/0x360
[ 1335.603983][   T73]      netlink_unicast+0x449/0x710
[ 1335.603983][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1335.603983][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1335.603983][   T73]      ___sys_sendmsg+0xee/0x170
[ 1335.603983][   T73]      __sys_sendmsg+0xcd/0x170
[ 1335.603983][   T73]      do_syscall_64+0xc6/0x1e0
[ 1335.603983][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1335.603983][   T73] 
[ 1335.606186][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1335.606186][   T73]      netdev_get_by_index+0x5e/0x80
[ 1335.606186][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1335.606186][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1335.606186][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1335.606186][   T73]      ipv6_add_addr+0x411/0x2000
[ 1335.606186][   T73]      inet6_addr_add+0x30e/0xa40
[ 1335.606186][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1335.606186][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1335.606186][   T73]      netlink_rcv_skb+0x130/0x360
[ 1335.606186][   T73]      netlink_unicast+0x449/0x710
[ 1335.606186][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1335.606186][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1335.606186][   T73]      ___sys_sendmsg+0xee/0x170
[ 1335.606186][   T73]      __sys_sendmsg+0xcd/0x170
[ 1335.606186][   T73]      do_syscall_64+0xc6/0x1e0
[ 1335.606186][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1335.606186][   T73] 
[ 1335.608261][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1335.608261][   T73]      netdev_get_by_index+0x5e/0x80
[ 1335.608261][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1335.608261][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1335.608261][   T73]      ip6_route_add+0x1c/0x140
[ 1335.608261][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1335.608261][   T73]      addrconf_add_dev+0xe2/0x170
[ 1335.608261][   T73]      inet6_addr_add+0x12f/0xa40
[ 1335.608261][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1335.608261][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1335.608261][   T73]      netlink_rcv_skb+0x130/0x360
[ 1335.608261][   T73]      netlink_unicast+0x449/0x710
[ 1335.608261][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1335.608261][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1335.608261][   T73]      ___sys_sendmsg+0xee/0x170
[ 1335.608261][   T73]      __sys_sendmsg+0xcd/0x170
[ 1335.608261][   T73]      do_syscall_64+0xc6/0x1e0
[ 1335.608261][   T73] 
[ 1335.610329][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1335.610329][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1335.610329][   T73]      ipv6_find_idev+0x102/0x170
[ 1335.610329][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1335.610329][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1335.610329][   T73]      netlink_rcv_skb+0x130/0x360
[ 1335.610329][   T73]      netlink_unicast+0x449/0x710
[ 1335.610329][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1335.610329][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1335.610329][   T73]      ___sys_sendmsg+0xee/0x170
[ 1335.610329][   T73]      __sys_sendmsg+0xcd/0x170
[ 1335.610329][   T73]      do_syscall_64+0xc6/0x1e0
[ 1335.610329][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1335.610329][   T73] 
[ 1335.612020][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1335.612020][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1335.612020][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1335.612020][   T73]      ipv6_find_idev+0x102/0x170
[ 1335.612020][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1335.612020][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1335.612020][   T73]      netlink_rcv_skb+0x130/0x360
[ 1335.612020][   T73]      netlink_unicast+0x449/0x710
[ 1335.612020][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1335.612020][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1335.612020][   T73]      ___sys_sendmsg+0xee/0x170
[ 1335.612020][   T73]      __sys_sendmsg+0xcd/0x170
[ 1335.612020][   T73]      do_syscall_64+0xc6/0x1e0
[ 1335.612020][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1335.612020][   T73] 
[ 1335.613896][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1335.614197][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1335.614197][   T73]      netdev_get_by_index+0x5e/0x80
[ 1335.614197][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1335.614197][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1335.614197][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1335.614197][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1335.614197][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1335.614197][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1335.614197][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1335.614197][   T73]      addrconf_dad_begin+0x310/0x670
[ 1335.614197][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1335.614197][   T73]      process_one_work+0x84d/0x18a0
[ 1335.614197][   T73]      worker_thread+0x587/0xd30
[ 1335.614197][   T73]      kthread+0x28a/0x350
[ 1335.614197][   T73]      ret_from_fork+0x31/0x70
[ 1335.614197][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1335.614197][   T73] 
[ 1335.616143][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1335.616143][   T73]      netdev_get_by_index+0x5e/0x80
[ 1335.616143][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1335.616143][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1335.616143][   T73]      ip6_route_add+0x1c/0x140
[ 1335.616143][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1335.616143][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1335.616143][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1335.616143][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1335.616143][   T73]      netlink_rcv_skb+0x130/0x360
[ 1335.616143][   T73]      netlink_unicast+0x449/0x710
[ 1335.616143][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1335.616143][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1335.616143][   T73]      ___sys_sendmsg+0xee/0x170
[ 1335.616143][   T73]      __sys_sendmsg+0xcd/0x170
[ 1335.616143][   T73]      do_syscall_64+0xc6/0x1e0
[ 1335.616143][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1335.616143][   T73] 
[ 1335.618280][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1335.618280][   T73]      netdev_get_by_index+0x5e/0x80
[ 1335.618280][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1335.618280][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1335.618280][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1335.618280][   T73]      ipv6_add_addr+0x411/0x2000
[ 1335.618280][   T73]      inet6_addr_add+0x30e/0xa40
[ 1335.618280][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1335.618280][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1335.618280][   T73]      netlink_rcv_skb+0x130/0x360
[ 1335.618280][   T73]      netlink_unicast+0x449/0x710
[ 1335.618280][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1335.618280][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1335.618280][   T73]      ___sys_sendmsg+0xee/0x170
[ 1335.618280][   T73]      __sys_sendmsg+0xcd/0x170
[ 1335.618280][   T73]      do_syscall_64+0xc6/0x1e0
[ 1335.618280][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1335.618280][   T73] 
[ 1335.620485][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1335.620485][   T73]      netdev_get_by_index+0x5e/0x80
[ 1335.620485][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1335.620485][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1335.620485][   T73]      ip6_route_add+0x1c/0x140
[ 1335.620485][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1335.620485][   T73]      addrconf_add_dev+0xe2/0x170
[ 1335.620485][   T73]      inet6_addr_add+0x12f/0xa40
[ 1335.620485][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1335.620485][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1335.620485][   T73]      netlink_rcv_skb+0x130/0x360
[ 1335.620485][   T73]      netlink_unicast+0x449/0x710
[ 1335.620485][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1335.620485][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1335.620485][   T73]      ___sys_sendmsg+0xee/0x170
[ 1335.620485][   T73]      __sys_sendmsg+0xcd/0x170
[ 1335.620485][   T73]      do_syscall_64+0xc6/0x1e0
[ 1335.620485][   T73] 
[ 1335.622570][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1335.622570][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1335.622570][   T73]      ipv6_find_idev+0x102/0x170
[ 1335.622570][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1335.622570][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1335.622570][   T73]      netlink_rcv_skb+0x130/0x360
[ 1335.622570][   T73]      netlink_unicast+0x449/0x710
[ 1335.622570][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1335.622570][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1335.622570][   T73]      ___sys_sendmsg+0xee/0x170
[ 1335.622570][   T73]      __sys_sendmsg+0xcd/0x170
[ 1335.622570][   T73]      do_syscall_64+0xc6/0x1e0
[ 1335.622570][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1335.622570][   T73] 
[ 1335.624116][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1335.624116][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1335.624116][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1335.624116][   T73]      ipv6_find_idev+0x102/0x170
[ 1335.624116][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1335.624116][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1335.624116][   T73]      netlink_rcv_skb+0x130/0x360
[ 1335.624116][   T73]      netlink_unicast+0x449/0x710
[ 1335.624116][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1335.624116][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1335.624116][   T73]      ___sys_sendmsg+0xee/0x170
[ 1335.624116][   T73]      __sys_sendmsg+0xcd/0x170
[ 1335.624116][   T73]      do_syscall_64+0xc6/0x1e0
[ 1335.624116][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1335.624116][   T73] 
[ 1335.625957][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1335.626251][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1335.626251][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1335.626251][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1335.626251][   T73]      fib6_nh_init+0xa22/0x1580
[ 1335.626251][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1335.626251][   T73]      ip6_route_add+0x1c/0x140
[ 1335.626251][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1335.626251][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1335.626251][   T73]      netlink_rcv_skb+0x130/0x360
[ 1335.626251][   T73]      netlink_unicast+0x449/0x710
[ 1335.626251][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1335.626251][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1335.626251][   T73]      ___sys_sendmsg+0xee/0x170
[ 1335.626251][   T73]      __sys_sendmsg+0xcd/0x170
[ 1335.626251][   T73]      do_syscall_64+0xc6/0x1e0
[ 1335.626251][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1335.626251][   T73] 
[ 1335.628437][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1335.628437][   T73]      dst_init+0x84/0x4a0
[ 1335.628437][   T73]      dst_alloc+0x97/0x150
[ 1335.628437][   T73]      ip6_dst_alloc+0x23/0x90
[ 1335.628437][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1335.628437][   T73]      ip6_pol_route+0x56f/0x840
[ 1335.628437][   T73]      fib6_rule_lookup+0x456/0x630
[ 1335.628437][   T73]      ip6_route_input+0x59c/0xa50
[ 1335.628437][   T73]      ipv6_rcv+0x397/0x810
[ 1335.628437][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1335.628437][   T73]      process_backlog+0x101/0x620
[ 1335.628437][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1335.628437][   T73]      net_rx_action+0x495/0xbe0
[ 1335.628437][   T73]      __do_softirq+0x1b5/0x7f6
[ 1335.628437][   T73] 
[ 1335.630407][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1335.630407][   T73]      netdev_get_by_index+0x5e/0x80
[ 1335.630407][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1335.630407][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1335.630407][   T73]      ip6_route_add+0x1c/0x140
[ 1335.630407][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1335.630407][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1335.630407][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1335.630407][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1335.630407][   T73]      netlink_rcv_skb+0x130/0x360
[ 1335.630407][   T73]      netlink_unicast+0x449/0x710
[ 1335.630407][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1335.630407][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1335.630407][   T73]      ___sys_sendmsg+0xee/0x170
[ 1335.630407][   T73]      __sys_sendmsg+0xcd/0x170
[ 1335.630407][   T73]      do_syscall_64+0xc6/0x1e0
[ 1335.630407][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1335.630407][   T73] 
[ 1335.632631][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1335.632631][   T73]      netdev_get_by_index+0x5e/0x80
[ 1335.632631][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1335.632631][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1335.632631][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1335.632631][   T73]      ipv6_add_addr+0x411/0x2000
[ 1335.632631][   T73]      inet6_addr_add+0x30e/0xa40
[ 1335.632631][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1335.632631][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1335.632631][   T73]      netlink_rcv_skb+0x130/0x360
[ 1335.632631][   T73]      netlink_unicast+0x449/0x710
[ 1335.632631][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1335.632631][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1335.632631][   T73]      ___sys_sendmsg+0xee/0x170
[ 1335.632631][   T73]      __sys_sendmsg+0xcd/0x170
[ 1335.632631][   T73]      do_syscall_64+0xc6/0x1e0
[ 1335.632631][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1335.632631][   T73] 
[ 1335.635070][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1335.635070][   T73]      netdev_get_by_index+0x5e/0x80
[ 1335.635070][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1335.635070][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1335.635070][   T73]      ip6_route_add+0x1c/0x140
[ 1335.635070][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1335.635070][   T73]      addrconf_add_dev+0xe2/0x170
[ 1335.635070][   T73]      inet6_addr_add+0x12f/0xa40
[ 1335.635070][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1335.635070][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1335.635070][   T73]      netlink_rcv_skb+0x130/0x360
[ 1335.635070][   T73]      netlink_unicast+0x449/0x710
[ 1335.635070][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1335.635070][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1335.635070][   T73]      ___sys_sendmsg+0xee/0x170
[ 1335.635070][   T73]      __sys_sendmsg+0xcd/0x170
[ 1335.635070][   T73]      do_syscall_64+0xc6/0x1e0
[ 1335.635070][   T73] 
[ 1335.637447][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1335.637447][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1335.637447][   T73]      ipv6_find_idev+0x102/0x170
[ 1335.637447][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1335.637447][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1335.637447][   T73]      netlink_rcv_skb+0x130/0x360
[ 1335.637447][   T73]      netlink_unicast+0x449/0x710
[ 1335.637447][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1335.637447][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1335.637447][   T73]      ___sys_sendmsg+0xee/0x170
[ 1335.637447][   T73]      __sys_sendmsg+0xcd/0x170
[ 1335.637447][   T73]      do_syscall_64+0xc6/0x1e0
[ 1335.637447][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1335.637447][   T73] 
[ 1335.639242][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1335.639242][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1335.639242][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1335.639242][   T73]      ipv6_find_idev+0x102/0x170
[ 1335.639242][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1335.639242][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1335.639242][   T73]      netlink_rcv_skb+0x130/0x360
[ 1335.639242][   T73]      netlink_unicast+0x449/0x710
[ 1335.639242][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1335.639242][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1335.639242][   T73]      ___sys_sendmsg+0xee/0x170
[ 1335.639242][   T73]      __sys_sendmsg+0xcd/0x170
[ 1335.639242][   T73]      do_syscall_64+0xc6/0x1e0
[ 1335.639242][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1335.639242][   T73] 
[ 1335.641256][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1335.641627][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1335.641627][   T73]      netdev_get_by_index+0x5e/0x80
[ 1335.641627][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1335.641627][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1335.641627][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1335.641627][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1335.641627][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1335.641627][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1335.641627][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1335.641627][   T73]      addrconf_dad_begin+0x310/0x670
[ 1335.641627][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1335.641627][   T73]      process_one_work+0x84d/0x18a0
[ 1335.641627][   T73]      worker_thread+0x587/0xd30
[ 1335.641627][   T73]      kthread+0x28a/0x350
[ 1335.641627][   T73]      ret_from_fork+0x31/0x70
[ 1335.641627][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1335.641627][   T73] 
[ 1335.644372][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1335.644372][   T73]      netdev_get_by_index+0x5e/0x80
[ 1335.644372][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1335.644372][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1335.644372][   T73]      ip6_route_add+0x1c/0x140
[ 1335.644372][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1335.644372][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1335.644372][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1335.644372][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1335.644372][   T73]      netlink_rcv_skb+0x130/0x360
[ 1335.644372][   T73]      netlink_unicast+0x449/0x710
[ 1335.644372][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1335.644372][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1335.644372][   T73]      ___sys_sendmsg+0xee/0x170
[ 1335.644372][   T73]      __sys_sendmsg+0xcd/0x170
[ 1335.644372][   T73]      do_syscall_64+0xc6/0x1e0
[ 1335.644372][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1335.644372][   T73] 
[ 1335.646623][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1335.646623][   T73]      netdev_get_by_index+0x5e/0x80
[ 1335.646623][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1335.646623][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1335.646623][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1335.646623][   T73]      ipv6_add_addr+0x411/0x2000
[ 1335.646623][   T73]      inet6_addr_add+0x30e/0xa40
[ 1335.646623][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1335.646623][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1335.646623][   T73]      netlink_rcv_skb+0x130/0x360
[ 1335.646623][   T73]      netlink_unicast+0x449/0x710
[ 1335.646623][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1335.646623][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1335.646623][   T73]      ___sys_sendmsg+0xee/0x170
[ 1335.646623][   T73]      __sys_sendmsg+0xcd/0x170
[ 1335.646623][   T73]      do_syscall_64+0xc6/0x1e0
[ 1335.646623][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1335.646623][   T73] 
[ 1335.649043][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1335.649043][   T73]      netdev_get_by_index+0x5e/0x80
[ 1335.649043][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1335.649043][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1335.649043][   T73]      ip6_route_add+0x1c/0x140
[ 1335.649043][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1335.649043][   T73]      addrconf_add_dev+0xe2/0x170
[ 1335.649043][   T73]      inet6_addr_add+0x12f/0xa40
[ 1335.649043][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1335.649043][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1335.649043][   T73]      netlink_rcv_skb+0x130/0x360
[ 1335.649043][   T73]      netlink_unicast+0x449/0x710
[ 1335.649043][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1335.649043][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1335.649043][   T73]      ___sys_sendmsg+0xee/0x170
[ 1335.649043][   T73]      __sys_sendmsg+0xcd/0x170
[ 1335.649043][   T73]      do_syscall_64+0xc6/0x1e0
[ 1335.649043][   T73] 
[ 1335.651505][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1335.651505][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1335.651505][   T73]      ipv6_find_idev+0x102/0x170
[ 1335.651505][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1335.651505][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1335.651505][   T73]      netlink_rcv_skb+0x130/0x360
[ 1335.651505][   T73]      netlink_unicast+0x449/0x710
[ 1335.651505][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1335.651505][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1335.651505][   T73]      ___sys_sendmsg+0xee/0x170
[ 1335.651505][   T73]      __sys_sendmsg+0xcd/0x170
[ 1335.651505][   T73]      do_syscall_64+0xc6/0x1e0
[ 1335.651505][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1335.651505][   T73] 
[ 1335.653239][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1335.653239][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1335.653239][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1335.653239][   T73]      ipv6_find_idev+0x102/0x170
[ 1335.653239][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1335.653239][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1335.653239][   T73]      netlink_rcv_skb+0x130/0x360
[ 1335.653239][   T73]      netlink_unicast+0x449/0x710
[ 1335.653239][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1335.653239][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1335.653239][   T73]      ___sys_sendmsg+0xee/0x170
[ 1335.653239][   T73]      __sys_sendmsg+0xcd/0x170
[ 1335.653239][   T73]      do_syscall_64+0xc6/0x1e0
[ 1335.653239][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1335.653239][   T73] 
[ 1345.895789][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1345.896290][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1345.896290][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1345.896290][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1345.896290][   T73]      fib6_nh_init+0xa22/0x1580
[ 1345.896290][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1345.896290][   T73]      ip6_route_add+0x1c/0x140
[ 1345.896290][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1345.896290][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1345.896290][   T73]      netlink_rcv_skb+0x130/0x360
[ 1345.896290][   T73]      netlink_unicast+0x449/0x710
[ 1345.896290][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1345.896290][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1345.896290][   T73]      ___sys_sendmsg+0xee/0x170
[ 1345.896290][   T73]      __sys_sendmsg+0xcd/0x170
[ 1345.896290][   T73]      do_syscall_64+0xc6/0x1e0
[ 1345.896290][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1345.896290][   T73] 
[ 1345.898218][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1345.898218][   T73]      dst_init+0x84/0x4a0
[ 1345.898218][   T73]      dst_alloc+0x97/0x150
[ 1345.898218][   T73]      ip6_dst_alloc+0x23/0x90
[ 1345.898218][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1345.898218][   T73]      ip6_pol_route+0x56f/0x840
[ 1345.898218][   T73]      fib6_rule_lookup+0x456/0x630
[ 1345.898218][   T73]      ip6_route_input+0x59c/0xa50
[ 1345.898218][   T73]      ipv6_rcv+0x397/0x810
[ 1345.898218][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1345.898218][   T73]      process_backlog+0x101/0x620
[ 1345.898218][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1345.898218][   T73]      net_rx_action+0x495/0xbe0
[ 1345.898218][   T73]      __do_softirq+0x1b5/0x7f6
[ 1345.898218][   T73] 
[ 1345.899899][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1345.899899][   T73]      netdev_get_by_index+0x5e/0x80
[ 1345.899899][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1345.899899][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1345.899899][   T73]      ip6_route_add+0x1c/0x140
[ 1345.899899][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1345.899899][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1345.899899][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1345.899899][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1345.899899][   T73]      netlink_rcv_skb+0x130/0x360
[ 1345.899899][   T73]      netlink_unicast+0x449/0x710
[ 1345.899899][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1345.899899][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1345.899899][   T73]      ___sys_sendmsg+0xee/0x170
[ 1345.899899][   T73]      __sys_sendmsg+0xcd/0x170
[ 1345.899899][   T73]      do_syscall_64+0xc6/0x1e0
[ 1345.899899][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1345.899899][   T73] 
[ 1345.901923][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1345.901923][   T73]      netdev_get_by_index+0x5e/0x80
[ 1345.901923][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1345.901923][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1345.901923][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1345.901923][   T73]      ipv6_add_addr+0x411/0x2000
[ 1345.901923][   T73]      inet6_addr_add+0x30e/0xa40
[ 1345.901923][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1345.901923][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1345.901923][   T73]      netlink_rcv_skb+0x130/0x360
[ 1345.901923][   T73]      netlink_unicast+0x449/0x710
[ 1345.901923][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1345.901923][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1345.901923][   T73]      ___sys_sendmsg+0xee/0x170
[ 1345.901923][   T73]      __sys_sendmsg+0xcd/0x170
[ 1345.901923][   T73]      do_syscall_64+0xc6/0x1e0
[ 1345.901923][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1345.901923][   T73] 
[ 1345.904323][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1345.904323][   T73]      netdev_get_by_index+0x5e/0x80
[ 1345.904323][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1345.904323][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1345.904323][   T73]      ip6_route_add+0x1c/0x140
[ 1345.904323][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1345.904323][   T73]      addrconf_add_dev+0xe2/0x170
[ 1345.904323][   T73]      inet6_addr_add+0x12f/0xa40
[ 1345.904323][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1345.904323][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1345.904323][   T73]      netlink_rcv_skb+0x130/0x360
[ 1345.904323][   T73]      netlink_unicast+0x449/0x710
[ 1345.904323][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1345.904323][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1345.904323][   T73]      ___sys_sendmsg+0xee/0x170
[ 1345.904323][   T73]      __sys_sendmsg+0xcd/0x170
[ 1345.904323][   T73]      do_syscall_64+0xc6/0x1e0
[ 1345.904323][   T73] 
[ 1345.906305][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1345.906305][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1345.906305][   T73]      ipv6_find_idev+0x102/0x170
[ 1345.906305][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1345.906305][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1345.906305][   T73]      netlink_rcv_skb+0x130/0x360
[ 1345.906305][   T73]      netlink_unicast+0x449/0x710
[ 1345.906305][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1345.906305][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1345.906305][   T73]      ___sys_sendmsg+0xee/0x170
[ 1345.906305][   T73]      __sys_sendmsg+0xcd/0x170
[ 1345.906305][   T73]      do_syscall_64+0xc6/0x1e0
[ 1345.906305][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1345.906305][   T73] 
[ 1345.907858][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1345.907858][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1345.907858][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1345.907858][   T73]      ipv6_find_idev+0x102/0x170
[ 1345.907858][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1345.907858][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1345.907858][   T73]      netlink_rcv_skb+0x130/0x360
[ 1345.907858][   T73]      netlink_unicast+0x449/0x710
[ 1345.907858][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1345.907858][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1345.907858][   T73]      ___sys_sendmsg+0xee/0x170
[ 1345.907858][   T73]      __sys_sendmsg+0xcd/0x170
[ 1345.907858][   T73]      do_syscall_64+0xc6/0x1e0
[ 1345.907858][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1345.907858][   T73] 
[ 1345.909598][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1345.909896][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1345.909896][   T73]      netdev_get_by_index+0x5e/0x80
[ 1345.909896][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1345.909896][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1345.909896][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1345.909896][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1345.909896][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1345.909896][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1345.909896][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1345.909896][   T73]      addrconf_dad_begin+0x310/0x670
[ 1345.909896][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1345.909896][   T73]      process_one_work+0x84d/0x18a0
[ 1345.909896][   T73]      worker_thread+0x587/0xd30
[ 1345.909896][   T73]      kthread+0x28a/0x350
[ 1345.909896][   T73]      ret_from_fork+0x31/0x70
[ 1345.909896][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1345.909896][   T73] 
[ 1345.911818][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1345.911818][   T73]      netdev_get_by_index+0x5e/0x80
[ 1345.911818][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1345.911818][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1345.911818][   T73]      ip6_route_add+0x1c/0x140
[ 1345.911818][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1345.911818][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1345.911818][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1345.911818][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1345.911818][   T73]      netlink_rcv_skb+0x130/0x360
[ 1345.911818][   T73]      netlink_unicast+0x449/0x710
[ 1345.911818][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1345.911818][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1345.911818][   T73]      ___sys_sendmsg+0xee/0x170
[ 1345.911818][   T73]      __sys_sendmsg+0xcd/0x170
[ 1345.911818][   T73]      do_syscall_64+0xc6/0x1e0
[ 1345.911818][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1345.911818][   T73] 
[ 1345.913826][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1345.913826][   T73]      netdev_get_by_index+0x5e/0x80
[ 1345.913826][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1345.913826][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1345.913826][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1345.913826][   T73]      ipv6_add_addr+0x411/0x2000
[ 1345.913826][   T73]      inet6_addr_add+0x30e/0xa40
[ 1345.913826][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1345.913826][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1345.913826][   T73]      netlink_rcv_skb+0x130/0x360
[ 1345.913826][   T73]      netlink_unicast+0x449/0x710
[ 1345.913826][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1345.913826][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1345.913826][   T73]      ___sys_sendmsg+0xee/0x170
[ 1345.913826][   T73]      __sys_sendmsg+0xcd/0x170
[ 1345.913826][   T73]      do_syscall_64+0xc6/0x1e0
[ 1345.913826][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1345.913826][   T73] 
[ 1345.915834][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1345.915834][   T73]      netdev_get_by_index+0x5e/0x80
[ 1345.915834][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1345.915834][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1345.915834][   T73]      ip6_route_add+0x1c/0x140
[ 1345.915834][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1345.915834][   T73]      addrconf_add_dev+0xe2/0x170
[ 1345.915834][   T73]      inet6_addr_add+0x12f/0xa40
[ 1345.915834][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1345.915834][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1345.915834][   T73]      netlink_rcv_skb+0x130/0x360
[ 1345.915834][   T73]      netlink_unicast+0x449/0x710
[ 1345.915834][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1345.915834][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1345.915834][   T73]      ___sys_sendmsg+0xee/0x170
[ 1345.915834][   T73]      __sys_sendmsg+0xcd/0x170
[ 1345.915834][   T73]      do_syscall_64+0xc6/0x1e0
[ 1345.915834][   T73] 
[ 1345.917810][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1345.917810][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1345.917810][   T73]      ipv6_find_idev+0x102/0x170
[ 1345.917810][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1345.917810][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1345.917810][   T73]      netlink_rcv_skb+0x130/0x360
[ 1345.917810][   T73]      netlink_unicast+0x449/0x710
[ 1345.917810][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1345.917810][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1345.917810][   T73]      ___sys_sendmsg+0xee/0x170
[ 1345.917810][   T73]      __sys_sendmsg+0xcd/0x170
[ 1345.917810][   T73]      do_syscall_64+0xc6/0x1e0
[ 1345.917810][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1345.917810][   T73] 
[ 1345.919364][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1345.919364][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1345.919364][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1345.919364][   T73]      ipv6_find_idev+0x102/0x170
[ 1345.919364][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1345.919364][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1345.919364][   T73]      netlink_rcv_skb+0x130/0x360
[ 1345.919364][   T73]      netlink_unicast+0x449/0x710
[ 1345.919364][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1345.919364][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1345.919364][   T73]      ___sys_sendmsg+0xee/0x170
[ 1345.919364][   T73]      __sys_sendmsg+0xcd/0x170
[ 1345.919364][   T73]      do_syscall_64+0xc6/0x1e0
[ 1345.919364][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1345.919364][   T73] 
[ 1345.921068][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1345.921338][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1345.921338][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1345.921338][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1345.921338][   T73]      fib6_nh_init+0xa22/0x1580
[ 1345.921338][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1345.921338][   T73]      ip6_route_add+0x1c/0x140
[ 1345.921338][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1345.921338][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1345.921338][   T73]      netlink_rcv_skb+0x130/0x360
[ 1345.921338][   T73]      netlink_unicast+0x449/0x710
[ 1345.921338][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1345.921338][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1345.921338][   T73]      ___sys_sendmsg+0xee/0x170
[ 1345.921338][   T73]      __sys_sendmsg+0xcd/0x170
[ 1345.921338][   T73]      do_syscall_64+0xc6/0x1e0
[ 1345.921338][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1345.921338][   T73] 
[ 1345.923412][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1345.923412][   T73]      dst_init+0x84/0x4a0
[ 1345.923412][   T73]      dst_alloc+0x97/0x150
[ 1345.923412][   T73]      ip6_dst_alloc+0x23/0x90
[ 1345.923412][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1345.923412][   T73]      ip6_pol_route+0x56f/0x840
[ 1345.923412][   T73]      fib6_rule_lookup+0x456/0x630
[ 1345.923412][   T73]      ip6_route_input+0x59c/0xa50
[ 1345.923412][   T73]      ipv6_rcv+0x397/0x810
[ 1345.923412][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1345.923412][   T73]      process_backlog+0x101/0x620
[ 1345.923412][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1345.923412][   T73]      net_rx_action+0x495/0xbe0
[ 1345.923412][   T73]      __do_softirq+0x1b5/0x7f6
[ 1345.923412][   T73] 
[ 1345.925233][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1345.925233][   T73]      netdev_get_by_index+0x5e/0x80
[ 1345.925233][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1345.925233][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1345.925233][   T73]      ip6_route_add+0x1c/0x140
[ 1345.925233][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1345.925233][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1345.925233][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1345.925233][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1345.925233][   T73]      netlink_rcv_skb+0x130/0x360
[ 1345.925233][   T73]      netlink_unicast+0x449/0x710
[ 1345.925233][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1345.925233][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1345.925233][   T73]      ___sys_sendmsg+0xee/0x170
[ 1345.925233][   T73]      __sys_sendmsg+0xcd/0x170
[ 1345.925233][   T73]      do_syscall_64+0xc6/0x1e0
[ 1345.925233][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1345.925233][   T73] 
[ 1345.927499][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1345.927499][   T73]      netdev_get_by_index+0x5e/0x80
[ 1345.927499][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1345.927499][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1345.927499][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1345.927499][   T73]      ipv6_add_addr+0x411/0x2000
[ 1345.927499][   T73]      inet6_addr_add+0x30e/0xa40
[ 1345.927499][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1345.927499][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1345.927499][   T73]      netlink_rcv_skb+0x130/0x360
[ 1345.927499][   T73]      netlink_unicast+0x449/0x710
[ 1345.927499][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1345.927499][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1345.927499][   T73]      ___sys_sendmsg+0xee/0x170
[ 1345.927499][   T73]      __sys_sendmsg+0xcd/0x170
[ 1345.927499][   T73]      do_syscall_64+0xc6/0x1e0
[ 1345.927499][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1345.927499][   T73] 
[ 1345.929835][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1345.929835][   T73]      netdev_get_by_index+0x5e/0x80
[ 1345.929835][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1345.929835][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1345.929835][   T73]      ip6_route_add+0x1c/0x140
[ 1345.929835][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1345.929835][   T73]      addrconf_add_dev+0xe2/0x170
[ 1345.929835][   T73]      inet6_addr_add+0x12f/0xa40
[ 1345.929835][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1345.929835][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1345.929835][   T73]      netlink_rcv_skb+0x130/0x360
[ 1345.929835][   T73]      netlink_unicast+0x449/0x710
[ 1345.929835][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1345.929835][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1345.929835][   T73]      ___sys_sendmsg+0xee/0x170
[ 1345.929835][   T73]      __sys_sendmsg+0xcd/0x170
[ 1345.929835][   T73]      do_syscall_64+0xc6/0x1e0
[ 1345.929835][   T73] 
[ 1345.931990][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1345.931990][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1345.931990][   T73]      ipv6_find_idev+0x102/0x170
[ 1345.931990][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1345.931990][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1345.931990][   T73]      netlink_rcv_skb+0x130/0x360
[ 1345.931990][   T73]      netlink_unicast+0x449/0x710
[ 1345.931990][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1345.931990][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1345.931990][   T73]      ___sys_sendmsg+0xee/0x170
[ 1345.931990][   T73]      __sys_sendmsg+0xcd/0x170
[ 1345.931990][   T73]      do_syscall_64+0xc6/0x1e0
[ 1345.931990][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1345.931990][   T73] 
[ 1345.933721][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1345.933721][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1345.933721][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1345.933721][   T73]      ipv6_find_idev+0x102/0x170
[ 1345.933721][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1345.933721][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1345.933721][   T73]      netlink_rcv_skb+0x130/0x360
[ 1345.933721][   T73]      netlink_unicast+0x449/0x710
[ 1345.933721][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1345.933721][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1345.933721][   T73]      ___sys_sendmsg+0xee/0x170
[ 1345.933721][   T73]      __sys_sendmsg+0xcd/0x170
[ 1345.933721][   T73]      do_syscall_64+0xc6/0x1e0
[ 1345.933721][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1345.933721][   T73] 
[ 1345.935662][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1345.935939][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1345.935939][   T73]      netdev_get_by_index+0x5e/0x80
[ 1345.935939][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1345.935939][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1345.935939][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1345.935939][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1345.935939][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1345.935939][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1345.935939][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1345.935939][   T73]      addrconf_dad_begin+0x310/0x670
[ 1345.935939][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1345.935939][   T73]      process_one_work+0x84d/0x18a0
[ 1345.935939][   T73]      worker_thread+0x587/0xd30
[ 1345.935939][   T73]      kthread+0x28a/0x350
[ 1345.935939][   T73]      ret_from_fork+0x31/0x70
[ 1345.935939][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1345.935939][   T73] 
[ 1345.938098][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1345.938098][   T73]      netdev_get_by_index+0x5e/0x80
[ 1345.938098][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1345.938098][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1345.938098][   T73]      ip6_route_add+0x1c/0x140
[ 1345.938098][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1345.938098][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1345.938098][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1345.938098][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1345.938098][   T73]      netlink_rcv_skb+0x130/0x360
[ 1345.938098][   T73]      netlink_unicast+0x449/0x710
[ 1345.938098][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1345.938098][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1345.938098][   T73]      ___sys_sendmsg+0xee/0x170
[ 1345.938098][   T73]      __sys_sendmsg+0xcd/0x170
[ 1345.938098][   T73]      do_syscall_64+0xc6/0x1e0
[ 1345.938098][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1345.938098][   T73] 
[ 1345.940424][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1345.940424][   T73]      netdev_get_by_index+0x5e/0x80
[ 1345.940424][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1345.940424][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1345.940424][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1345.940424][   T73]      ipv6_add_addr+0x411/0x2000
[ 1345.940424][   T73]      inet6_addr_add+0x30e/0xa40
[ 1345.940424][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1345.940424][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1345.940424][   T73]      netlink_rcv_skb+0x130/0x360
[ 1345.940424][   T73]      netlink_unicast+0x449/0x710
[ 1345.940424][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1345.940424][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1345.940424][   T73]      ___sys_sendmsg+0xee/0x170
[ 1345.940424][   T73]      __sys_sendmsg+0xcd/0x170
[ 1345.940424][   T73]      do_syscall_64+0xc6/0x1e0
[ 1345.940424][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1345.940424][   T73] 
[ 1345.942622][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1345.942622][   T73]      netdev_get_by_index+0x5e/0x80
[ 1345.942622][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1345.942622][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1345.942622][   T73]      ip6_route_add+0x1c/0x140
[ 1345.942622][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1345.942622][   T73]      addrconf_add_dev+0xe2/0x170
[ 1345.942622][   T73]      inet6_addr_add+0x12f/0xa40
[ 1345.942622][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1345.942622][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1345.942622][   T73]      netlink_rcv_skb+0x130/0x360
[ 1345.942622][   T73]      netlink_unicast+0x449/0x710
[ 1345.942622][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1345.942622][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1345.942622][   T73]      ___sys_sendmsg+0xee/0x170
[ 1345.942622][   T73]      __sys_sendmsg+0xcd/0x170
[ 1345.942622][   T73]      do_syscall_64+0xc6/0x1e0
[ 1345.942622][   T73] 
[ 1345.944838][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1345.944838][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1345.944838][   T73]      ipv6_find_idev+0x102/0x170
[ 1345.944838][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1345.944838][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1345.944838][   T73]      netlink_rcv_skb+0x130/0x360
[ 1345.944838][   T73]      netlink_unicast+0x449/0x710
[ 1345.944838][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1345.944838][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1345.944838][   T73]      ___sys_sendmsg+0xee/0x170
[ 1345.944838][   T73]      __sys_sendmsg+0xcd/0x170
[ 1345.944838][   T73]      do_syscall_64+0xc6/0x1e0
[ 1345.944838][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1345.944838][   T73] 
[ 1345.946567][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1345.946567][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1345.946567][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1345.946567][   T73]      ipv6_find_idev+0x102/0x170
[ 1345.946567][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1345.946567][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1345.946567][   T73]      netlink_rcv_skb+0x130/0x360
[ 1345.946567][   T73]      netlink_unicast+0x449/0x710
[ 1345.946567][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1345.946567][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1345.946567][   T73]      ___sys_sendmsg+0xee/0x170
[ 1345.946567][   T73]      __sys_sendmsg+0xcd/0x170
[ 1345.946567][   T73]      do_syscall_64+0xc6/0x1e0
[ 1345.946567][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1345.946567][   T73] 
[ 1352.999808][   T42] INFO: task modprobe:885 blocked for more than 1105 seconds.
[ 1353.000151][   T42]       Not tainted 6.8.0-virtme #1
[ 1353.000274][   T42] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1353.000472][   T42] task:modprobe        state:D stack:25856 pid:885   tgid:885   ppid:39     flags:0x00004002
[ 1353.000747][   T42] Call Trace:
[ 1353.000851][   T42]  <TASK>
[ 1353.000923][   T42]  __schedule+0x705/0x1ac0
[ 1353.001062][   T42]  ? __pfx___schedule+0x10/0x10
[ 1353.001189][   T42]  ? schedule+0x1a5/0x210
[ 1353.001286][   T42]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1353.001415][   T42]  ? mark_lock+0x38/0x3e0
[ 1353.001509][   T42]  ? do_raw_spin_lock+0x131/0x270
[ 1353.001653][   T42]  ? schedule+0x1a5/0x210
[ 1353.001751][   T42]  schedule+0xdf/0x210
[ 1353.001848][   T42]  schedule_preempt_disabled+0x15/0x30
[ 1353.001975][   T42]  rwsem_down_write_slowpath+0x3af/0xab0
[ 1353.002104][   T42]  ? __pfx_rwsem_down_write_slowpath+0x10/0x10
[ 1353.002260][   T42]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1353.002392][   T42]  ? lock_acquire+0x1c1/0x220
[ 1353.002513][   T42]  ? register_pernet_subsys+0x1a/0x50
[ 1353.002655][   T42]  down_write+0x1c9/0x200
[ 1353.002753][   T42]  ? __pfx_down_write+0x10/0x10
[ 1353.002876][   T42]  ? __lock_release+0x103/0x460
[ 1353.003003][   T42]  ? __create_object+0x5e/0xb0
[ 1353.003128][   T42]  ? __pfx___lock_release+0x10/0x10
[ 1353.003253][   T42]  register_pernet_subsys+0x1a/0x50
[ 1353.003376][   T42]  tcf_register_action+0xa3/0x600
[ 1353.003505][   T42]  ? __pfx_pedit_init_module+0x10/0x10 [act_pedit]
[ 1353.003675][   T42]  do_one_initcall+0xc8/0x3f0
[ 1353.003802][   T42]  ? __pfx_do_one_initcall+0x10/0x10
[ 1353.003928][   T42]  ? __create_object+0x5e/0xb0
[ 1353.004059][   T42]  ? kasan_unpoison+0x27/0x60
[ 1353.004189][   T42]  do_init_module+0x233/0x740
[ 1353.004325][   T42]  load_module+0x16b5/0x2350
[ 1353.004461][   T42]  ? __pfx_load_module+0x10/0x10
[ 1353.004585][   T42]  ? kernel_read_file+0x3d2/0x520
[ 1353.004732][   T42]  ? kernel_read_file+0x300/0x520
[ 1353.004866][   T42]  ? __pfx_kernel_read_file+0x10/0x10
[ 1353.004996][   T42]  ? init_module_from_file+0xd2/0x130
[ 1353.005118][   T42]  init_module_from_file+0xd2/0x130
[ 1353.005248][   T42]  ? __pfx_init_module_from_file+0x10/0x10
[ 1353.005399][   T42]  ? __lock_release+0x103/0x460
[ 1353.005521][   T42]  ? idempotent_init_module+0x32a/0x620
[ 1353.005666][   T42]  ? idempotent_init_module+0x32a/0x620
[ 1353.005792][   T42]  ? do_raw_spin_unlock+0x58/0x220
[ 1353.005918][   T42]  idempotent_init_module+0x342/0x620
[ 1353.006048][   T42]  ? __pfx_idempotent_init_module+0x10/0x10
[ 1353.006221][   T42]  __x64_sys_finit_module+0xbe/0x130
[ 1353.006348][   T42]  do_syscall_64+0xc6/0x1e0
[ 1353.006477][   T42]  entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1353.006630][   T42] RIP: 0033:0x7f505b1e4e5d
[ 1353.006770][   T42] RSP: 002b:00007ffe4f186f28 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[ 1353.006958][   T42] RAX: ffffffffffffffda RBX: 000055ce7b6ccc80 RCX: 00007f505b1e4e5d
[ 1353.007143][   T42] RDX: 0000000000000000 RSI: 000055ce5e14da2a RDI: 0000000000000000
[ 1353.007325][   T42] RBP: 0000000000040000 R08: 0000000000000000 R09: 00007ffe4f187060
[ 1353.007507][   T42] R10: 0000000000000000 R11: 0000000000000246 R12: 000055ce5e14da2a
[ 1353.007698][   T42] R13: 000055ce7b6ccac0 R14: 000055ce7b6cd0b0 R15: 000055ce7b6cccf2
[ 1353.007896][   T42]  </TASK>
[ 1353.007991][   T42] 
[ 1353.007991][   T42] Showing all locks held in the system:
[ 1353.008174][   T42] 2 locks held by kworker/u20:0/39:
[ 1353.008295][   T42]  #0: ffff888001161d48 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0
[ 1353.008564][   T42]  #1: ffffc900002c7da0 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0
[ 1353.008860][   T42] 1 lock held by khungtaskd/42:
[ 1353.008980][   T42]  #0: ffffffffaf7591e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x350
[ 1353.009209][   T42] 3 locks held by kworker/u16:1/73:
[ 1353.009326][   T42]  #0: ffff88800190a948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0
[ 1353.009572][   T42]  #1: ffffc900004efda0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0
[ 1353.009796][   T42]  #2: ffffffffaff6a1d0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xbc/0xb60
[ 1353.010022][   T42] 1 lock held by modprobe/885:
[ 1353.010139][   T42]  #0: ffffffffaff6a1d0 (pernet_ops_rwsem){++++}-{3:3}, at: register_pernet_subsys+0x1a/0x50
[ 1353.010382][   T42] 
[ 1353.010443][   T42] =============================================
[ 1353.010443][   T42] 
[ 1356.191760][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1356.192278][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1356.192278][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1356.192278][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1356.192278][   T73]      fib6_nh_init+0xa22/0x1580
[ 1356.192278][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1356.192278][   T73]      ip6_route_add+0x1c/0x140
[ 1356.192278][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1356.192278][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1356.192278][   T73]      netlink_rcv_skb+0x130/0x360
[ 1356.192278][   T73]      netlink_unicast+0x449/0x710
[ 1356.192278][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1356.192278][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1356.192278][   T73]      ___sys_sendmsg+0xee/0x170
[ 1356.192278][   T73]      __sys_sendmsg+0xcd/0x170
[ 1356.192278][   T73]      do_syscall_64+0xc6/0x1e0
[ 1356.192278][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1356.192278][   T73] 
[ 1356.194204][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1356.194204][   T73]      dst_init+0x84/0x4a0
[ 1356.194204][   T73]      dst_alloc+0x97/0x150
[ 1356.194204][   T73]      ip6_dst_alloc+0x23/0x90
[ 1356.194204][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1356.194204][   T73]      ip6_pol_route+0x56f/0x840
[ 1356.194204][   T73]      fib6_rule_lookup+0x456/0x630
[ 1356.194204][   T73]      ip6_route_input+0x59c/0xa50
[ 1356.194204][   T73]      ipv6_rcv+0x397/0x810
[ 1356.194204][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1356.194204][   T73]      process_backlog+0x101/0x620
[ 1356.194204][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1356.194204][   T73]      net_rx_action+0x495/0xbe0
[ 1356.194204][   T73]      __do_softirq+0x1b5/0x7f6
[ 1356.194204][   T73] 
[ 1356.195864][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1356.195864][   T73]      netdev_get_by_index+0x5e/0x80
[ 1356.195864][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1356.195864][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1356.195864][   T73]      ip6_route_add+0x1c/0x140
[ 1356.195864][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1356.195864][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1356.195864][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1356.195864][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1356.195864][   T73]      netlink_rcv_skb+0x130/0x360
[ 1356.195864][   T73]      netlink_unicast+0x449/0x710
[ 1356.195864][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1356.195864][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1356.195864][   T73]      ___sys_sendmsg+0xee/0x170
[ 1356.195864][   T73]      __sys_sendmsg+0xcd/0x170
[ 1356.195864][   T73]      do_syscall_64+0xc6/0x1e0
[ 1356.195864][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1356.195864][   T73] 
[ 1356.197900][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1356.197900][   T73]      netdev_get_by_index+0x5e/0x80
[ 1356.197900][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1356.197900][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1356.197900][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1356.197900][   T73]      ipv6_add_addr+0x411/0x2000
[ 1356.197900][   T73]      inet6_addr_add+0x30e/0xa40
[ 1356.197900][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1356.197900][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1356.197900][   T73]      netlink_rcv_skb+0x130/0x360
[ 1356.197900][   T73]      netlink_unicast+0x449/0x710
[ 1356.197900][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1356.197900][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1356.197900][   T73]      ___sys_sendmsg+0xee/0x170
[ 1356.197900][   T73]      __sys_sendmsg+0xcd/0x170
[ 1356.197900][   T73]      do_syscall_64+0xc6/0x1e0
[ 1356.197900][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1356.197900][   T73] 
[ 1356.200006][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1356.200006][   T73]      netdev_get_by_index+0x5e/0x80
[ 1356.200006][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1356.200006][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1356.200006][   T73]      ip6_route_add+0x1c/0x140
[ 1356.200006][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1356.200006][   T73]      addrconf_add_dev+0xe2/0x170
[ 1356.200006][   T73]      inet6_addr_add+0x12f/0xa40
[ 1356.200006][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1356.200006][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1356.200006][   T73]      netlink_rcv_skb+0x130/0x360
[ 1356.200006][   T73]      netlink_unicast+0x449/0x710
[ 1356.200006][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1356.200006][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1356.200006][   T73]      ___sys_sendmsg+0xee/0x170
[ 1356.200006][   T73]      __sys_sendmsg+0xcd/0x170
[ 1356.200006][   T73]      do_syscall_64+0xc6/0x1e0
[ 1356.200006][   T73] 
[ 1356.201981][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1356.201981][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1356.201981][   T73]      ipv6_find_idev+0x102/0x170
[ 1356.201981][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1356.201981][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1356.201981][   T73]      netlink_rcv_skb+0x130/0x360
[ 1356.201981][   T73]      netlink_unicast+0x449/0x710
[ 1356.201981][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1356.201981][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1356.201981][   T73]      ___sys_sendmsg+0xee/0x170
[ 1356.201981][   T73]      __sys_sendmsg+0xcd/0x170
[ 1356.201981][   T73]      do_syscall_64+0xc6/0x1e0
[ 1356.201981][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1356.201981][   T73] 
[ 1356.203532][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1356.203532][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1356.203532][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1356.203532][   T73]      ipv6_find_idev+0x102/0x170
[ 1356.203532][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1356.203532][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1356.203532][   T73]      netlink_rcv_skb+0x130/0x360
[ 1356.203532][   T73]      netlink_unicast+0x449/0x710
[ 1356.203532][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1356.203532][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1356.203532][   T73]      ___sys_sendmsg+0xee/0x170
[ 1356.203532][   T73]      __sys_sendmsg+0xcd/0x170
[ 1356.203532][   T73]      do_syscall_64+0xc6/0x1e0
[ 1356.203532][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1356.203532][   T73] 
[ 1356.205251][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1356.205541][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1356.205541][   T73]      netdev_get_by_index+0x5e/0x80
[ 1356.205541][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1356.205541][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1356.205541][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1356.205541][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1356.205541][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1356.205541][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1356.205541][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1356.205541][   T73]      addrconf_dad_begin+0x310/0x670
[ 1356.205541][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1356.205541][   T73]      process_one_work+0x84d/0x18a0
[ 1356.205541][   T73]      worker_thread+0x587/0xd30
[ 1356.205541][   T73]      kthread+0x28a/0x350
[ 1356.205541][   T73]      ret_from_fork+0x31/0x70
[ 1356.205541][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1356.205541][   T73] 
[ 1356.207479][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1356.207479][   T73]      netdev_get_by_index+0x5e/0x80
[ 1356.207479][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1356.207479][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1356.207479][   T73]      ip6_route_add+0x1c/0x140
[ 1356.207479][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1356.207479][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1356.207479][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1356.207479][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1356.207479][   T73]      netlink_rcv_skb+0x130/0x360
[ 1356.207479][   T73]      netlink_unicast+0x449/0x710
[ 1356.207479][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1356.207479][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1356.207479][   T73]      ___sys_sendmsg+0xee/0x170
[ 1356.207479][   T73]      __sys_sendmsg+0xcd/0x170
[ 1356.207479][   T73]      do_syscall_64+0xc6/0x1e0
[ 1356.207479][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1356.207479][   T73] 
[ 1356.209505][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1356.209505][   T73]      netdev_get_by_index+0x5e/0x80
[ 1356.209505][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1356.209505][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1356.209505][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1356.209505][   T73]      ipv6_add_addr+0x411/0x2000
[ 1356.209505][   T73]      inet6_addr_add+0x30e/0xa40
[ 1356.209505][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1356.209505][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1356.209505][   T73]      netlink_rcv_skb+0x130/0x360
[ 1356.209505][   T73]      netlink_unicast+0x449/0x710
[ 1356.209505][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1356.209505][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1356.209505][   T73]      ___sys_sendmsg+0xee/0x170
[ 1356.209505][   T73]      __sys_sendmsg+0xcd/0x170
[ 1356.209505][   T73]      do_syscall_64+0xc6/0x1e0
[ 1356.209505][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1356.209505][   T73] 
[ 1356.211516][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1356.211516][   T73]      netdev_get_by_index+0x5e/0x80
[ 1356.211516][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1356.211516][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1356.211516][   T73]      ip6_route_add+0x1c/0x140
[ 1356.211516][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1356.211516][   T73]      addrconf_add_dev+0xe2/0x170
[ 1356.211516][   T73]      inet6_addr_add+0x12f/0xa40
[ 1356.211516][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1356.211516][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1356.211516][   T73]      netlink_rcv_skb+0x130/0x360
[ 1356.211516][   T73]      netlink_unicast+0x449/0x710
[ 1356.211516][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1356.211516][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1356.211516][   T73]      ___sys_sendmsg+0xee/0x170
[ 1356.211516][   T73]      __sys_sendmsg+0xcd/0x170
[ 1356.211516][   T73]      do_syscall_64+0xc6/0x1e0
[ 1356.211516][   T73] 
[ 1356.213498][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1356.213498][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1356.213498][   T73]      ipv6_find_idev+0x102/0x170
[ 1356.213498][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1356.213498][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1356.213498][   T73]      netlink_rcv_skb+0x130/0x360
[ 1356.213498][   T73]      netlink_unicast+0x449/0x710
[ 1356.213498][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1356.213498][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1356.213498][   T73]      ___sys_sendmsg+0xee/0x170
[ 1356.213498][   T73]      __sys_sendmsg+0xcd/0x170
[ 1356.213498][   T73]      do_syscall_64+0xc6/0x1e0
[ 1356.213498][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1356.213498][   T73] 
[ 1356.215049][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1356.215049][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1356.215049][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1356.215049][   T73]      ipv6_find_idev+0x102/0x170
[ 1356.215049][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1356.215049][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1356.215049][   T73]      netlink_rcv_skb+0x130/0x360
[ 1356.215049][   T73]      netlink_unicast+0x449/0x710
[ 1356.215049][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1356.215049][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1356.215049][   T73]      ___sys_sendmsg+0xee/0x170
[ 1356.215049][   T73]      __sys_sendmsg+0xcd/0x170
[ 1356.215049][   T73]      do_syscall_64+0xc6/0x1e0
[ 1356.215049][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1356.215049][   T73] 
[ 1356.216757][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1356.217027][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1356.217027][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1356.217027][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1356.217027][   T73]      fib6_nh_init+0xa22/0x1580
[ 1356.217027][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1356.217027][   T73]      ip6_route_add+0x1c/0x140
[ 1356.217027][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1356.217027][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1356.217027][   T73]      netlink_rcv_skb+0x130/0x360
[ 1356.217027][   T73]      netlink_unicast+0x449/0x710
[ 1356.217027][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1356.217027][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1356.217027][   T73]      ___sys_sendmsg+0xee/0x170
[ 1356.217027][   T73]      __sys_sendmsg+0xcd/0x170
[ 1356.217027][   T73]      do_syscall_64+0xc6/0x1e0
[ 1356.217027][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1356.217027][   T73] 
[ 1356.219116][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1356.219116][   T73]      dst_init+0x84/0x4a0
[ 1356.219116][   T73]      dst_alloc+0x97/0x150
[ 1356.219116][   T73]      ip6_dst_alloc+0x23/0x90
[ 1356.219116][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1356.219116][   T73]      ip6_pol_route+0x56f/0x840
[ 1356.219116][   T73]      fib6_rule_lookup+0x456/0x630
[ 1356.219116][   T73]      ip6_route_input+0x59c/0xa50
[ 1356.219116][   T73]      ipv6_rcv+0x397/0x810
[ 1356.219116][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1356.219116][   T73]      process_backlog+0x101/0x620
[ 1356.219116][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1356.219116][   T73]      net_rx_action+0x495/0xbe0
[ 1356.219116][   T73]      __do_softirq+0x1b5/0x7f6
[ 1356.219116][   T73] 
[ 1356.221012][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1356.221012][   T73]      netdev_get_by_index+0x5e/0x80
[ 1356.221012][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1356.221012][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1356.221012][   T73]      ip6_route_add+0x1c/0x140
[ 1356.221012][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1356.221012][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1356.221012][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1356.221012][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1356.221012][   T73]      netlink_rcv_skb+0x130/0x360
[ 1356.221012][   T73]      netlink_unicast+0x449/0x710
[ 1356.221012][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1356.221012][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1356.221012][   T73]      ___sys_sendmsg+0xee/0x170
[ 1356.221012][   T73]      __sys_sendmsg+0xcd/0x170
[ 1356.221012][   T73]      do_syscall_64+0xc6/0x1e0
[ 1356.221012][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1356.221012][   T73] 
[ 1356.223287][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1356.223287][   T73]      netdev_get_by_index+0x5e/0x80
[ 1356.223287][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1356.223287][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1356.223287][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1356.223287][   T73]      ipv6_add_addr+0x411/0x2000
[ 1356.223287][   T73]      inet6_addr_add+0x30e/0xa40
[ 1356.223287][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1356.223287][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1356.223287][   T73]      netlink_rcv_skb+0x130/0x360
[ 1356.223287][   T73]      netlink_unicast+0x449/0x710
[ 1356.223287][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1356.223287][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1356.223287][   T73]      ___sys_sendmsg+0xee/0x170
[ 1356.223287][   T73]      __sys_sendmsg+0xcd/0x170
[ 1356.223287][   T73]      do_syscall_64+0xc6/0x1e0
[ 1356.223287][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1356.223287][   T73] 
[ 1356.225544][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1356.225544][   T73]      netdev_get_by_index+0x5e/0x80
[ 1356.225544][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1356.225544][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1356.225544][   T73]      ip6_route_add+0x1c/0x140
[ 1356.225544][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1356.225544][   T73]      addrconf_add_dev+0xe2/0x170
[ 1356.225544][   T73]      inet6_addr_add+0x12f/0xa40
[ 1356.225544][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1356.225544][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1356.225544][   T73]      netlink_rcv_skb+0x130/0x360
[ 1356.225544][   T73]      netlink_unicast+0x449/0x710
[ 1356.225544][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1356.225544][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1356.225544][   T73]      ___sys_sendmsg+0xee/0x170
[ 1356.225544][   T73]      __sys_sendmsg+0xcd/0x170
[ 1356.225544][   T73]      do_syscall_64+0xc6/0x1e0
[ 1356.225544][   T73] 
[ 1356.227705][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1356.227705][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1356.227705][   T73]      ipv6_find_idev+0x102/0x170
[ 1356.227705][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1356.227705][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1356.227705][   T73]      netlink_rcv_skb+0x130/0x360
[ 1356.227705][   T73]      netlink_unicast+0x449/0x710
[ 1356.227705][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1356.227705][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1356.227705][   T73]      ___sys_sendmsg+0xee/0x170
[ 1356.227705][   T73]      __sys_sendmsg+0xcd/0x170
[ 1356.227705][   T73]      do_syscall_64+0xc6/0x1e0
[ 1356.227705][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1356.227705][   T73] 
[ 1356.229504][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1356.229504][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1356.229504][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1356.229504][   T73]      ipv6_find_idev+0x102/0x170
[ 1356.229504][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1356.229504][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1356.229504][   T73]      netlink_rcv_skb+0x130/0x360
[ 1356.229504][   T73]      netlink_unicast+0x449/0x710
[ 1356.229504][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1356.229504][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1356.229504][   T73]      ___sys_sendmsg+0xee/0x170
[ 1356.229504][   T73]      __sys_sendmsg+0xcd/0x170
[ 1356.229504][   T73]      do_syscall_64+0xc6/0x1e0
[ 1356.229504][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1356.229504][   T73] 
[ 1356.231452][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1356.232168][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1356.232168][   T73]      netdev_get_by_index+0x5e/0x80
[ 1356.232168][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1356.232168][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1356.232168][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1356.232168][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1356.232168][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1356.232168][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1356.232168][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1356.232168][   T73]      addrconf_dad_begin+0x310/0x670
[ 1356.232168][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1356.232168][   T73]      process_one_work+0x84d/0x18a0
[ 1356.232168][   T73]      worker_thread+0x587/0xd30
[ 1356.232168][   T73]      kthread+0x28a/0x350
[ 1356.232168][   T73]      ret_from_fork+0x31/0x70
[ 1356.232168][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1356.232168][   T73] 
[ 1356.234098][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1356.234098][   T73]      netdev_get_by_index+0x5e/0x80
[ 1356.234098][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1356.234098][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1356.234098][   T73]      ip6_route_add+0x1c/0x140
[ 1356.234098][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1356.234098][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1356.234098][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1356.234098][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1356.234098][   T73]      netlink_rcv_skb+0x130/0x360
[ 1356.234098][   T73]      netlink_unicast+0x449/0x710
[ 1356.234098][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1356.234098][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1356.234098][   T73]      ___sys_sendmsg+0xee/0x170
[ 1356.234098][   T73]      __sys_sendmsg+0xcd/0x170
[ 1356.234098][   T73]      do_syscall_64+0xc6/0x1e0
[ 1356.234098][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1356.234098][   T73] 
[ 1356.236241][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1356.236241][   T73]      netdev_get_by_index+0x5e/0x80
[ 1356.236241][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1356.236241][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1356.236241][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1356.236241][   T73]      ipv6_add_addr+0x411/0x2000
[ 1356.236241][   T73]      inet6_addr_add+0x30e/0xa40
[ 1356.236241][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1356.236241][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1356.236241][   T73]      netlink_rcv_skb+0x130/0x360
[ 1356.236241][   T73]      netlink_unicast+0x449/0x710
[ 1356.236241][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1356.236241][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1356.236241][   T73]      ___sys_sendmsg+0xee/0x170
[ 1356.236241][   T73]      __sys_sendmsg+0xcd/0x170
[ 1356.236241][   T73]      do_syscall_64+0xc6/0x1e0
[ 1356.236241][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1356.236241][   T73] 
[ 1356.238466][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1356.238466][   T73]      netdev_get_by_index+0x5e/0x80
[ 1356.238466][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1356.238466][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1356.238466][   T73]      ip6_route_add+0x1c/0x140
[ 1356.238466][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1356.238466][   T73]      addrconf_add_dev+0xe2/0x170
[ 1356.238466][   T73]      inet6_addr_add+0x12f/0xa40
[ 1356.238466][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1356.238466][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1356.238466][   T73]      netlink_rcv_skb+0x130/0x360
[ 1356.238466][   T73]      netlink_unicast+0x449/0x710
[ 1356.238466][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1356.238466][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1356.238466][   T73]      ___sys_sendmsg+0xee/0x170
[ 1356.238466][   T73]      __sys_sendmsg+0xcd/0x170
[ 1356.238466][   T73]      do_syscall_64+0xc6/0x1e0
[ 1356.238466][   T73] 
[ 1356.240693][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1356.240693][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1356.240693][   T73]      ipv6_find_idev+0x102/0x170
[ 1356.240693][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1356.240693][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1356.240693][   T73]      netlink_rcv_skb+0x130/0x360
[ 1356.240693][   T73]      netlink_unicast+0x449/0x710
[ 1356.240693][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1356.240693][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1356.240693][   T73]      ___sys_sendmsg+0xee/0x170
[ 1356.240693][   T73]      __sys_sendmsg+0xcd/0x170
[ 1356.240693][   T73]      do_syscall_64+0xc6/0x1e0
[ 1356.240693][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1356.240693][   T73] 
[ 1356.242488][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1356.242488][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1356.242488][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1356.242488][   T73]      ipv6_find_idev+0x102/0x170
[ 1356.242488][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1356.242488][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1356.242488][   T73]      netlink_rcv_skb+0x130/0x360
[ 1356.242488][   T73]      netlink_unicast+0x449/0x710
[ 1356.242488][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1356.242488][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1356.242488][   T73]      ___sys_sendmsg+0xee/0x170
[ 1356.242488][   T73]      __sys_sendmsg+0xcd/0x170
[ 1356.242488][   T73]      do_syscall_64+0xc6/0x1e0
[ 1356.242488][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1356.242488][   T73] 
[ 1366.295744][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1366.296196][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1366.296196][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1366.296196][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1366.296196][   T73]      fib6_nh_init+0xa22/0x1580
[ 1366.296196][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1366.296196][   T73]      ip6_route_add+0x1c/0x140
[ 1366.296196][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1366.296196][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1366.296196][   T73]      netlink_rcv_skb+0x130/0x360
[ 1366.296196][   T73]      netlink_unicast+0x449/0x710
[ 1366.296196][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1366.296196][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1366.296196][   T73]      ___sys_sendmsg+0xee/0x170
[ 1366.296196][   T73]      __sys_sendmsg+0xcd/0x170
[ 1366.296196][   T73]      do_syscall_64+0xc6/0x1e0
[ 1366.296196][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1366.296196][   T73] 
[ 1366.298159][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1366.298159][   T73]      dst_init+0x84/0x4a0
[ 1366.298159][   T73]      dst_alloc+0x97/0x150
[ 1366.298159][   T73]      ip6_dst_alloc+0x23/0x90
[ 1366.298159][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1366.298159][   T73]      ip6_pol_route+0x56f/0x840
[ 1366.298159][   T73]      fib6_rule_lookup+0x456/0x630
[ 1366.298159][   T73]      ip6_route_input+0x59c/0xa50
[ 1366.298159][   T73]      ipv6_rcv+0x397/0x810
[ 1366.298159][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1366.298159][   T73]      process_backlog+0x101/0x620
[ 1366.298159][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1366.298159][   T73]      net_rx_action+0x495/0xbe0
[ 1366.298159][   T73]      __do_softirq+0x1b5/0x7f6
[ 1366.298159][   T73] 
[ 1366.299855][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1366.299855][   T73]      netdev_get_by_index+0x5e/0x80
[ 1366.299855][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1366.299855][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1366.299855][   T73]      ip6_route_add+0x1c/0x140
[ 1366.299855][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1366.299855][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1366.299855][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1366.299855][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1366.299855][   T73]      netlink_rcv_skb+0x130/0x360
[ 1366.299855][   T73]      netlink_unicast+0x449/0x710
[ 1366.299855][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1366.299855][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1366.299855][   T73]      ___sys_sendmsg+0xee/0x170
[ 1366.299855][   T73]      __sys_sendmsg+0xcd/0x170
[ 1366.299855][   T73]      do_syscall_64+0xc6/0x1e0
[ 1366.299855][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1366.299855][   T73] 
[ 1366.301915][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1366.301915][   T73]      netdev_get_by_index+0x5e/0x80
[ 1366.301915][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1366.301915][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1366.301915][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1366.301915][   T73]      ipv6_add_addr+0x411/0x2000
[ 1366.301915][   T73]      inet6_addr_add+0x30e/0xa40
[ 1366.301915][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1366.301915][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1366.301915][   T73]      netlink_rcv_skb+0x130/0x360
[ 1366.301915][   T73]      netlink_unicast+0x449/0x710
[ 1366.301915][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1366.301915][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1366.301915][   T73]      ___sys_sendmsg+0xee/0x170
[ 1366.301915][   T73]      __sys_sendmsg+0xcd/0x170
[ 1366.301915][   T73]      do_syscall_64+0xc6/0x1e0
[ 1366.301915][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1366.301915][   T73] 
[ 1366.303984][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1366.303984][   T73]      netdev_get_by_index+0x5e/0x80
[ 1366.303984][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1366.303984][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1366.303984][   T73]      ip6_route_add+0x1c/0x140
[ 1366.303984][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1366.303984][   T73]      addrconf_add_dev+0xe2/0x170
[ 1366.303984][   T73]      inet6_addr_add+0x12f/0xa40
[ 1366.303984][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1366.303984][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1366.303984][   T73]      netlink_rcv_skb+0x130/0x360
[ 1366.303984][   T73]      netlink_unicast+0x449/0x710
[ 1366.303984][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1366.303984][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1366.303984][   T73]      ___sys_sendmsg+0xee/0x170
[ 1366.303984][   T73]      __sys_sendmsg+0xcd/0x170
[ 1366.303984][   T73]      do_syscall_64+0xc6/0x1e0
[ 1366.303984][   T73] 
[ 1366.305989][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1366.305989][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1366.305989][   T73]      ipv6_find_idev+0x102/0x170
[ 1366.305989][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1366.305989][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1366.305989][   T73]      netlink_rcv_skb+0x130/0x360
[ 1366.305989][   T73]      netlink_unicast+0x449/0x710
[ 1366.305989][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1366.305989][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1366.305989][   T73]      ___sys_sendmsg+0xee/0x170
[ 1366.305989][   T73]      __sys_sendmsg+0xcd/0x170
[ 1366.305989][   T73]      do_syscall_64+0xc6/0x1e0
[ 1366.305989][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1366.305989][   T73] 
[ 1366.308085][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1366.308085][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1366.308085][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1366.308085][   T73]      ipv6_find_idev+0x102/0x170
[ 1366.308085][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1366.308085][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1366.308085][   T73]      netlink_rcv_skb+0x130/0x360
[ 1366.308085][   T73]      netlink_unicast+0x449/0x710
[ 1366.308085][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1366.308085][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1366.308085][   T73]      ___sys_sendmsg+0xee/0x170
[ 1366.308085][   T73]      __sys_sendmsg+0xcd/0x170
[ 1366.308085][   T73]      do_syscall_64+0xc6/0x1e0
[ 1366.308085][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1366.308085][   T73] 
[ 1366.309836][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1366.310137][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1366.310137][   T73]      netdev_get_by_index+0x5e/0x80
[ 1366.310137][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1366.310137][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1366.310137][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1366.310137][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1366.310137][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1366.310137][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1366.310137][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1366.310137][   T73]      addrconf_dad_begin+0x310/0x670
[ 1366.310137][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1366.310137][   T73]      process_one_work+0x84d/0x18a0
[ 1366.310137][   T73]      worker_thread+0x587/0xd30
[ 1366.310137][   T73]      kthread+0x28a/0x350
[ 1366.310137][   T73]      ret_from_fork+0x31/0x70
[ 1366.310137][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1366.310137][   T73] 
[ 1366.312240][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1366.312240][   T73]      netdev_get_by_index+0x5e/0x80
[ 1366.312240][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1366.312240][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1366.312240][   T73]      ip6_route_add+0x1c/0x140
[ 1366.312240][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1366.312240][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1366.312240][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1366.312240][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1366.312240][   T73]      netlink_rcv_skb+0x130/0x360
[ 1366.312240][   T73]      netlink_unicast+0x449/0x710
[ 1366.312240][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1366.312240][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1366.312240][   T73]      ___sys_sendmsg+0xee/0x170
[ 1366.312240][   T73]      __sys_sendmsg+0xcd/0x170
[ 1366.312240][   T73]      do_syscall_64+0xc6/0x1e0
[ 1366.312240][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1366.312240][   T73] 
[ 1366.315639][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1366.315639][   T73]      netdev_get_by_index+0x5e/0x80
[ 1366.315639][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1366.315639][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1366.315639][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1366.315639][   T73]      ipv6_add_addr+0x411/0x2000
[ 1366.315639][   T73]      inet6_addr_add+0x30e/0xa40
[ 1366.315639][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1366.315639][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1366.315639][   T73]      netlink_rcv_skb+0x130/0x360
[ 1366.315639][   T73]      netlink_unicast+0x449/0x710
[ 1366.315639][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1366.315639][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1366.315639][   T73]      ___sys_sendmsg+0xee/0x170
[ 1366.315639][   T73]      __sys_sendmsg+0xcd/0x170
[ 1366.315639][   T73]      do_syscall_64+0xc6/0x1e0
[ 1366.315639][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1366.315639][   T73] 
[ 1366.318951][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1366.318951][   T73]      netdev_get_by_index+0x5e/0x80
[ 1366.318951][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1366.318951][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1366.318951][   T73]      ip6_route_add+0x1c/0x140
[ 1366.318951][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1366.318951][   T73]      addrconf_add_dev+0xe2/0x170
[ 1366.318951][   T73]      inet6_addr_add+0x12f/0xa40
[ 1366.318951][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1366.318951][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1366.318951][   T73]      netlink_rcv_skb+0x130/0x360
[ 1366.318951][   T73]      netlink_unicast+0x449/0x710
[ 1366.318951][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1366.318951][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1366.318951][   T73]      ___sys_sendmsg+0xee/0x170
[ 1366.318951][   T73]      __sys_sendmsg+0xcd/0x170
[ 1366.318951][   T73]      do_syscall_64+0xc6/0x1e0
[ 1366.318951][   T73] 
[ 1366.322160][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1366.322160][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1366.322160][   T73]      ipv6_find_idev+0x102/0x170
[ 1366.322160][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1366.322160][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1366.322160][   T73]      netlink_rcv_skb+0x130/0x360
[ 1366.322160][   T73]      netlink_unicast+0x449/0x710
[ 1366.322160][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1366.322160][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1366.322160][   T73]      ___sys_sendmsg+0xee/0x170
[ 1366.322160][   T73]      __sys_sendmsg+0xcd/0x170
[ 1366.322160][   T73]      do_syscall_64+0xc6/0x1e0
[ 1366.322160][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1366.322160][   T73] 
[ 1366.324692][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1366.324692][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1366.324692][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1366.324692][   T73]      ipv6_find_idev+0x102/0x170
[ 1366.324692][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1366.324692][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1366.324692][   T73]      netlink_rcv_skb+0x130/0x360
[ 1366.324692][   T73]      netlink_unicast+0x449/0x710
[ 1366.324692][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1366.324692][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1366.324692][   T73]      ___sys_sendmsg+0xee/0x170
[ 1366.324692][   T73]      __sys_sendmsg+0xcd/0x170
[ 1366.324692][   T73]      do_syscall_64+0xc6/0x1e0
[ 1366.324692][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1366.324692][   T73] 
[ 1366.327511][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1366.328004][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1366.328004][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1366.328004][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1366.328004][   T73]      fib6_nh_init+0xa22/0x1580
[ 1366.328004][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1366.328004][   T73]      ip6_route_add+0x1c/0x140
[ 1366.328004][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1366.328004][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1366.328004][   T73]      netlink_rcv_skb+0x130/0x360
[ 1366.328004][   T73]      netlink_unicast+0x449/0x710
[ 1366.328004][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1366.328004][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1366.328004][   T73]      ___sys_sendmsg+0xee/0x170
[ 1366.328004][   T73]      __sys_sendmsg+0xcd/0x170
[ 1366.328004][   T73]      do_syscall_64+0xc6/0x1e0
[ 1366.328004][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1366.328004][   T73] 
[ 1366.331446][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1366.331446][   T73]      dst_init+0x84/0x4a0
[ 1366.331446][   T73]      dst_alloc+0x97/0x150
[ 1366.331446][   T73]      ip6_dst_alloc+0x23/0x90
[ 1366.331446][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1366.331446][   T73]      ip6_pol_route+0x56f/0x840
[ 1366.331446][   T73]      fib6_rule_lookup+0x456/0x630
[ 1366.331446][   T73]      ip6_route_input+0x59c/0xa50
[ 1366.331446][   T73]      ipv6_rcv+0x397/0x810
[ 1366.331446][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1366.331446][   T73]      process_backlog+0x101/0x620
[ 1366.331446][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1366.331446][   T73]      net_rx_action+0x495/0xbe0
[ 1366.331446][   T73]      __do_softirq+0x1b5/0x7f6
[ 1366.331446][   T73] 
[ 1366.334571][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1366.334571][   T73]      netdev_get_by_index+0x5e/0x80
[ 1366.334571][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1366.334571][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1366.334571][   T73]      ip6_route_add+0x1c/0x140
[ 1366.334571][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1366.334571][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1366.334571][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1366.334571][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1366.334571][   T73]      netlink_rcv_skb+0x130/0x360
[ 1366.334571][   T73]      netlink_unicast+0x449/0x710
[ 1366.334571][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1366.334571][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1366.334571][   T73]      ___sys_sendmsg+0xee/0x170
[ 1366.334571][   T73]      __sys_sendmsg+0xcd/0x170
[ 1366.334571][   T73]      do_syscall_64+0xc6/0x1e0
[ 1366.334571][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1366.334571][   T73] 
[ 1366.338959][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1366.338959][   T73]      netdev_get_by_index+0x5e/0x80
[ 1366.338959][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1366.338959][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1366.338959][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1366.338959][   T73]      ipv6_add_addr+0x411/0x2000
[ 1366.338959][   T73]      inet6_addr_add+0x30e/0xa40
[ 1366.338959][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1366.338959][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1366.338959][   T73]      netlink_rcv_skb+0x130/0x360
[ 1366.338959][   T73]      netlink_unicast+0x449/0x710
[ 1366.338959][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1366.338959][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1366.338959][   T73]      ___sys_sendmsg+0xee/0x170
[ 1366.338959][   T73]      __sys_sendmsg+0xcd/0x170
[ 1366.338959][   T73]      do_syscall_64+0xc6/0x1e0
[ 1366.338959][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1366.338959][   T73] 
[ 1366.342687][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1366.342687][   T73]      netdev_get_by_index+0x5e/0x80
[ 1366.342687][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1366.342687][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1366.342687][   T73]      ip6_route_add+0x1c/0x140
[ 1366.342687][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1366.342687][   T73]      addrconf_add_dev+0xe2/0x170
[ 1366.342687][   T73]      inet6_addr_add+0x12f/0xa40
[ 1366.342687][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1366.342687][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1366.342687][   T73]      netlink_rcv_skb+0x130/0x360
[ 1366.342687][   T73]      netlink_unicast+0x449/0x710
[ 1366.342687][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1366.342687][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1366.342687][   T73]      ___sys_sendmsg+0xee/0x170
[ 1366.342687][   T73]      __sys_sendmsg+0xcd/0x170
[ 1366.342687][   T73]      do_syscall_64+0xc6/0x1e0
[ 1366.342687][   T73] 
[ 1366.346208][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1366.346208][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1366.346208][   T73]      ipv6_find_idev+0x102/0x170
[ 1366.346208][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1366.346208][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1366.346208][   T73]      netlink_rcv_skb+0x130/0x360
[ 1366.346208][   T73]      netlink_unicast+0x449/0x710
[ 1366.346208][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1366.346208][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1366.346208][   T73]      ___sys_sendmsg+0xee/0x170
[ 1366.346208][   T73]      __sys_sendmsg+0xcd/0x170
[ 1366.346208][   T73]      do_syscall_64+0xc6/0x1e0
[ 1366.346208][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1366.346208][   T73] 
[ 1366.349206][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1366.349206][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1366.349206][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1366.349206][   T73]      ipv6_find_idev+0x102/0x170
[ 1366.349206][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1366.349206][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1366.349206][   T73]      netlink_rcv_skb+0x130/0x360
[ 1366.349206][   T73]      netlink_unicast+0x449/0x710
[ 1366.349206][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1366.349206][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1366.349206][   T73]      ___sys_sendmsg+0xee/0x170
[ 1366.349206][   T73]      __sys_sendmsg+0xcd/0x170
[ 1366.349206][   T73]      do_syscall_64+0xc6/0x1e0
[ 1366.349206][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1366.349206][   T73] 
[ 1366.352389][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1366.353553][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1366.353553][   T73]      netdev_get_by_index+0x5e/0x80
[ 1366.353553][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1366.353553][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1366.353553][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1366.353553][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1366.353553][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1366.353553][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1366.353553][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1366.353553][   T73]      addrconf_dad_begin+0x310/0x670
[ 1366.353553][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1366.353553][   T73]      process_one_work+0x84d/0x18a0
[ 1366.353553][   T73]      worker_thread+0x587/0xd30
[ 1366.353553][   T73]      kthread+0x28a/0x350
[ 1366.353553][   T73]      ret_from_fork+0x31/0x70
[ 1366.353553][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1366.353553][   T73] 
[ 1366.356561][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1366.356561][   T73]      netdev_get_by_index+0x5e/0x80
[ 1366.356561][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1366.356561][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1366.356561][   T73]      ip6_route_add+0x1c/0x140
[ 1366.356561][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1366.356561][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1366.356561][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1366.356561][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1366.356561][   T73]      netlink_rcv_skb+0x130/0x360
[ 1366.356561][   T73]      netlink_unicast+0x449/0x710
[ 1366.356561][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1366.356561][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1366.356561][   T73]      ___sys_sendmsg+0xee/0x170
[ 1366.356561][   T73]      __sys_sendmsg+0xcd/0x170
[ 1366.356561][   T73]      do_syscall_64+0xc6/0x1e0
[ 1366.356561][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1366.356561][   T73] 
[ 1366.360042][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1366.360042][   T73]      netdev_get_by_index+0x5e/0x80
[ 1366.360042][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1366.360042][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1366.360042][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1366.360042][   T73]      ipv6_add_addr+0x411/0x2000
[ 1366.360042][   T73]      inet6_addr_add+0x30e/0xa40
[ 1366.360042][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1366.360042][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1366.360042][   T73]      netlink_rcv_skb+0x130/0x360
[ 1366.360042][   T73]      netlink_unicast+0x449/0x710
[ 1366.360042][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1366.360042][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1366.360042][   T73]      ___sys_sendmsg+0xee/0x170
[ 1366.360042][   T73]      __sys_sendmsg+0xcd/0x170
[ 1366.360042][   T73]      do_syscall_64+0xc6/0x1e0
[ 1366.360042][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1366.360042][   T73] 
[ 1366.363504][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1366.363504][   T73]      netdev_get_by_index+0x5e/0x80
[ 1366.363504][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1366.363504][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1366.363504][   T73]      ip6_route_add+0x1c/0x140
[ 1366.363504][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1366.363504][   T73]      addrconf_add_dev+0xe2/0x170
[ 1366.363504][   T73]      inet6_addr_add+0x12f/0xa40
[ 1366.363504][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1366.363504][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1366.363504][   T73]      netlink_rcv_skb+0x130/0x360
[ 1366.363504][   T73]      netlink_unicast+0x449/0x710
[ 1366.363504][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1366.363504][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1366.363504][   T73]      ___sys_sendmsg+0xee/0x170
[ 1366.363504][   T73]      __sys_sendmsg+0xcd/0x170
[ 1366.363504][   T73]      do_syscall_64+0xc6/0x1e0
[ 1366.363504][   T73] 
[ 1366.367033][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1366.367033][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1366.367033][   T73]      ipv6_find_idev+0x102/0x170
[ 1366.367033][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1366.367033][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1366.367033][   T73]      netlink_rcv_skb+0x130/0x360
[ 1366.367033][   T73]      netlink_unicast+0x449/0x710
[ 1366.367033][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1366.367033][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1366.367033][   T73]      ___sys_sendmsg+0xee/0x170
[ 1366.367033][   T73]      __sys_sendmsg+0xcd/0x170
[ 1366.367033][   T73]      do_syscall_64+0xc6/0x1e0
[ 1366.367033][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1366.367033][   T73] 
[ 1366.369933][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1366.369933][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1366.369933][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1366.369933][   T73]      ipv6_find_idev+0x102/0x170
[ 1366.369933][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1366.369933][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1366.369933][   T73]      netlink_rcv_skb+0x130/0x360
[ 1366.369933][   T73]      netlink_unicast+0x449/0x710
[ 1366.369933][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1366.369933][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1366.369933][   T73]      ___sys_sendmsg+0xee/0x170
[ 1366.369933][   T73]      __sys_sendmsg+0xcd/0x170
[ 1366.369933][   T73]      do_syscall_64+0xc6/0x1e0
[ 1366.369933][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1366.369933][   T73] 
[ 1376.615768][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1376.616183][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1376.616183][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1376.616183][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1376.616183][   T73]      fib6_nh_init+0xa22/0x1580
[ 1376.616183][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1376.616183][   T73]      ip6_route_add+0x1c/0x140
[ 1376.616183][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1376.616183][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1376.616183][   T73]      netlink_rcv_skb+0x130/0x360
[ 1376.616183][   T73]      netlink_unicast+0x449/0x710
[ 1376.616183][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1376.616183][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1376.616183][   T73]      ___sys_sendmsg+0xee/0x170
[ 1376.616183][   T73]      __sys_sendmsg+0xcd/0x170
[ 1376.616183][   T73]      do_syscall_64+0xc6/0x1e0
[ 1376.616183][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1376.616183][   T73] 
[ 1376.618164][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1376.618164][   T73]      dst_init+0x84/0x4a0
[ 1376.618164][   T73]      dst_alloc+0x97/0x150
[ 1376.618164][   T73]      ip6_dst_alloc+0x23/0x90
[ 1376.618164][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1376.618164][   T73]      ip6_pol_route+0x56f/0x840
[ 1376.618164][   T73]      fib6_rule_lookup+0x456/0x630
[ 1376.618164][   T73]      ip6_route_input+0x59c/0xa50
[ 1376.618164][   T73]      ipv6_rcv+0x397/0x810
[ 1376.618164][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1376.618164][   T73]      process_backlog+0x101/0x620
[ 1376.618164][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1376.618164][   T73]      net_rx_action+0x495/0xbe0
[ 1376.618164][   T73]      __do_softirq+0x1b5/0x7f6
[ 1376.618164][   T73] 
[ 1376.620314][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1376.620314][   T73]      netdev_get_by_index+0x5e/0x80
[ 1376.620314][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1376.620314][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1376.620314][   T73]      ip6_route_add+0x1c/0x140
[ 1376.620314][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1376.620314][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1376.620314][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1376.620314][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1376.620314][   T73]      netlink_rcv_skb+0x130/0x360
[ 1376.620314][   T73]      netlink_unicast+0x449/0x710
[ 1376.620314][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1376.620314][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1376.620314][   T73]      ___sys_sendmsg+0xee/0x170
[ 1376.620314][   T73]      __sys_sendmsg+0xcd/0x170
[ 1376.620314][   T73]      do_syscall_64+0xc6/0x1e0
[ 1376.620314][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1376.620314][   T73] 
[ 1376.622508][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1376.622508][   T73]      netdev_get_by_index+0x5e/0x80
[ 1376.622508][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1376.622508][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1376.622508][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1376.622508][   T73]      ipv6_add_addr+0x411/0x2000
[ 1376.622508][   T73]      inet6_addr_add+0x30e/0xa40
[ 1376.622508][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1376.622508][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1376.622508][   T73]      netlink_rcv_skb+0x130/0x360
[ 1376.622508][   T73]      netlink_unicast+0x449/0x710
[ 1376.622508][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1376.622508][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1376.622508][   T73]      ___sys_sendmsg+0xee/0x170
[ 1376.622508][   T73]      __sys_sendmsg+0xcd/0x170
[ 1376.622508][   T73]      do_syscall_64+0xc6/0x1e0
[ 1376.622508][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1376.622508][   T73] 
[ 1376.624663][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1376.624663][   T73]      netdev_get_by_index+0x5e/0x80
[ 1376.624663][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1376.624663][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1376.624663][   T73]      ip6_route_add+0x1c/0x140
[ 1376.624663][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1376.624663][   T73]      addrconf_add_dev+0xe2/0x170
[ 1376.624663][   T73]      inet6_addr_add+0x12f/0xa40
[ 1376.624663][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1376.624663][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1376.624663][   T73]      netlink_rcv_skb+0x130/0x360
[ 1376.624663][   T73]      netlink_unicast+0x449/0x710
[ 1376.624663][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1376.624663][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1376.624663][   T73]      ___sys_sendmsg+0xee/0x170
[ 1376.624663][   T73]      __sys_sendmsg+0xcd/0x170
[ 1376.624663][   T73]      do_syscall_64+0xc6/0x1e0
[ 1376.624663][   T73] 
[ 1376.626766][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1376.626766][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1376.626766][   T73]      ipv6_find_idev+0x102/0x170
[ 1376.626766][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1376.626766][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1376.626766][   T73]      netlink_rcv_skb+0x130/0x360
[ 1376.626766][   T73]      netlink_unicast+0x449/0x710
[ 1376.626766][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1376.626766][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1376.626766][   T73]      ___sys_sendmsg+0xee/0x170
[ 1376.626766][   T73]      __sys_sendmsg+0xcd/0x170
[ 1376.626766][   T73]      do_syscall_64+0xc6/0x1e0
[ 1376.626766][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1376.626766][   T73] 
[ 1376.628468][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1376.628468][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1376.628468][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1376.628468][   T73]      ipv6_find_idev+0x102/0x170
[ 1376.628468][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1376.628468][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1376.628468][   T73]      netlink_rcv_skb+0x130/0x360
[ 1376.628468][   T73]      netlink_unicast+0x449/0x710
[ 1376.628468][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1376.628468][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1376.628468][   T73]      ___sys_sendmsg+0xee/0x170
[ 1376.628468][   T73]      __sys_sendmsg+0xcd/0x170
[ 1376.628468][   T73]      do_syscall_64+0xc6/0x1e0
[ 1376.628468][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1376.628468][   T73] 
[ 1376.630386][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1376.630686][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1376.630686][   T73]      netdev_get_by_index+0x5e/0x80
[ 1376.630686][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1376.630686][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1376.630686][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1376.630686][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1376.630686][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1376.630686][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1376.630686][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1376.630686][   T73]      addrconf_dad_begin+0x310/0x670
[ 1376.630686][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1376.630686][   T73]      process_one_work+0x84d/0x18a0
[ 1376.630686][   T73]      worker_thread+0x587/0xd30
[ 1376.630686][   T73]      kthread+0x28a/0x350
[ 1376.630686][   T73]      ret_from_fork+0x31/0x70
[ 1376.630686][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1376.630686][   T73] 
[ 1376.632752][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1376.632752][   T73]      netdev_get_by_index+0x5e/0x80
[ 1376.632752][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1376.632752][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1376.632752][   T73]      ip6_route_add+0x1c/0x140
[ 1376.632752][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1376.632752][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1376.632752][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1376.632752][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1376.632752][   T73]      netlink_rcv_skb+0x130/0x360
[ 1376.632752][   T73]      netlink_unicast+0x449/0x710
[ 1376.632752][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1376.632752][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1376.632752][   T73]      ___sys_sendmsg+0xee/0x170
[ 1376.632752][   T73]      __sys_sendmsg+0xcd/0x170
[ 1376.632752][   T73]      do_syscall_64+0xc6/0x1e0
[ 1376.632752][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1376.632752][   T73] 
[ 1376.634898][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1376.634898][   T73]      netdev_get_by_index+0x5e/0x80
[ 1376.634898][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1376.634898][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1376.634898][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1376.634898][   T73]      ipv6_add_addr+0x411/0x2000
[ 1376.634898][   T73]      inet6_addr_add+0x30e/0xa40
[ 1376.634898][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1376.634898][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1376.634898][   T73]      netlink_rcv_skb+0x130/0x360
[ 1376.634898][   T73]      netlink_unicast+0x449/0x710
[ 1376.634898][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1376.634898][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1376.634898][   T73]      ___sys_sendmsg+0xee/0x170
[ 1376.634898][   T73]      __sys_sendmsg+0xcd/0x170
[ 1376.634898][   T73]      do_syscall_64+0xc6/0x1e0
[ 1376.634898][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1376.634898][   T73] 
[ 1376.636990][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1376.636990][   T73]      netdev_get_by_index+0x5e/0x80
[ 1376.636990][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1376.636990][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1376.636990][   T73]      ip6_route_add+0x1c/0x140
[ 1376.636990][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1376.636990][   T73]      addrconf_add_dev+0xe2/0x170
[ 1376.636990][   T73]      inet6_addr_add+0x12f/0xa40
[ 1376.636990][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1376.636990][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1376.636990][   T73]      netlink_rcv_skb+0x130/0x360
[ 1376.636990][   T73]      netlink_unicast+0x449/0x710
[ 1376.636990][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1376.636990][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1376.636990][   T73]      ___sys_sendmsg+0xee/0x170
[ 1376.636990][   T73]      __sys_sendmsg+0xcd/0x170
[ 1376.636990][   T73]      do_syscall_64+0xc6/0x1e0
[ 1376.636990][   T73] 
[ 1376.639122][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1376.639122][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1376.639122][   T73]      ipv6_find_idev+0x102/0x170
[ 1376.639122][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1376.639122][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1376.639122][   T73]      netlink_rcv_skb+0x130/0x360
[ 1376.639122][   T73]      netlink_unicast+0x449/0x710
[ 1376.639122][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1376.639122][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1376.639122][   T73]      ___sys_sendmsg+0xee/0x170
[ 1376.639122][   T73]      __sys_sendmsg+0xcd/0x170
[ 1376.639122][   T73]      do_syscall_64+0xc6/0x1e0
[ 1376.639122][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1376.639122][   T73] 
[ 1376.640725][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1376.640725][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1376.640725][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1376.640725][   T73]      ipv6_find_idev+0x102/0x170
[ 1376.640725][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1376.640725][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1376.640725][   T73]      netlink_rcv_skb+0x130/0x360
[ 1376.640725][   T73]      netlink_unicast+0x449/0x710
[ 1376.640725][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1376.640725][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1376.640725][   T73]      ___sys_sendmsg+0xee/0x170
[ 1376.640725][   T73]      __sys_sendmsg+0xcd/0x170
[ 1376.640725][   T73]      do_syscall_64+0xc6/0x1e0
[ 1376.640725][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1376.640725][   T73] 
[ 1376.642451][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1376.642751][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1376.642751][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1376.642751][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1376.642751][   T73]      fib6_nh_init+0xa22/0x1580
[ 1376.642751][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1376.642751][   T73]      ip6_route_add+0x1c/0x140
[ 1376.642751][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1376.642751][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1376.642751][   T73]      netlink_rcv_skb+0x130/0x360
[ 1376.642751][   T73]      netlink_unicast+0x449/0x710
[ 1376.642751][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1376.642751][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1376.642751][   T73]      ___sys_sendmsg+0xee/0x170
[ 1376.642751][   T73]      __sys_sendmsg+0xcd/0x170
[ 1376.642751][   T73]      do_syscall_64+0xc6/0x1e0
[ 1376.642751][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1376.642751][   T73] 
[ 1376.644867][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1376.644867][   T73]      dst_init+0x84/0x4a0
[ 1376.644867][   T73]      dst_alloc+0x97/0x150
[ 1376.644867][   T73]      ip6_dst_alloc+0x23/0x90
[ 1376.644867][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1376.644867][   T73]      ip6_pol_route+0x56f/0x840
[ 1376.644867][   T73]      fib6_rule_lookup+0x456/0x630
[ 1376.644867][   T73]      ip6_route_input+0x59c/0xa50
[ 1376.644867][   T73]      ipv6_rcv+0x397/0x810
[ 1376.644867][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1376.644867][   T73]      process_backlog+0x101/0x620
[ 1376.644867][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1376.644867][   T73]      net_rx_action+0x495/0xbe0
[ 1376.644867][   T73]      __do_softirq+0x1b5/0x7f6
[ 1376.644867][   T73] 
[ 1376.646762][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1376.646762][   T73]      netdev_get_by_index+0x5e/0x80
[ 1376.646762][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1376.646762][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1376.646762][   T73]      ip6_route_add+0x1c/0x140
[ 1376.646762][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1376.646762][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1376.646762][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1376.646762][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1376.646762][   T73]      netlink_rcv_skb+0x130/0x360
[ 1376.646762][   T73]      netlink_unicast+0x449/0x710
[ 1376.646762][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1376.646762][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1376.646762][   T73]      ___sys_sendmsg+0xee/0x170
[ 1376.646762][   T73]      __sys_sendmsg+0xcd/0x170
[ 1376.646762][   T73]      do_syscall_64+0xc6/0x1e0
[ 1376.646762][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1376.646762][   T73] 
[ 1376.648977][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1376.648977][   T73]      netdev_get_by_index+0x5e/0x80
[ 1376.648977][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1376.648977][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1376.648977][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1376.648977][   T73]      ipv6_add_addr+0x411/0x2000
[ 1376.648977][   T73]      inet6_addr_add+0x30e/0xa40
[ 1376.648977][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1376.648977][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1376.648977][   T73]      netlink_rcv_skb+0x130/0x360
[ 1376.648977][   T73]      netlink_unicast+0x449/0x710
[ 1376.648977][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1376.648977][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1376.648977][   T73]      ___sys_sendmsg+0xee/0x170
[ 1376.648977][   T73]      __sys_sendmsg+0xcd/0x170
[ 1376.648977][   T73]      do_syscall_64+0xc6/0x1e0
[ 1376.648977][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1376.648977][   T73] 
[ 1376.651238][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1376.651238][   T73]      netdev_get_by_index+0x5e/0x80
[ 1376.651238][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1376.651238][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1376.651238][   T73]      ip6_route_add+0x1c/0x140
[ 1376.651238][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1376.651238][   T73]      addrconf_add_dev+0xe2/0x170
[ 1376.651238][   T73]      inet6_addr_add+0x12f/0xa40
[ 1376.651238][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1376.651238][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1376.651238][   T73]      netlink_rcv_skb+0x130/0x360
[ 1376.651238][   T73]      netlink_unicast+0x449/0x710
[ 1376.651238][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1376.651238][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1376.651238][   T73]      ___sys_sendmsg+0xee/0x170
[ 1376.651238][   T73]      __sys_sendmsg+0xcd/0x170
[ 1376.651238][   T73]      do_syscall_64+0xc6/0x1e0
[ 1376.651238][   T73] 
[ 1376.653575][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1376.653575][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1376.653575][   T73]      ipv6_find_idev+0x102/0x170
[ 1376.653575][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1376.653575][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1376.653575][   T73]      netlink_rcv_skb+0x130/0x360
[ 1376.653575][   T73]      netlink_unicast+0x449/0x710
[ 1376.653575][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1376.653575][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1376.653575][   T73]      ___sys_sendmsg+0xee/0x170
[ 1376.653575][   T73]      __sys_sendmsg+0xcd/0x170
[ 1376.653575][   T73]      do_syscall_64+0xc6/0x1e0
[ 1376.653575][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1376.653575][   T73] 
[ 1376.655442][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1376.655442][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1376.655442][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1376.655442][   T73]      ipv6_find_idev+0x102/0x170
[ 1376.655442][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1376.655442][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1376.655442][   T73]      netlink_rcv_skb+0x130/0x360
[ 1376.655442][   T73]      netlink_unicast+0x449/0x710
[ 1376.655442][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1376.655442][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1376.655442][   T73]      ___sys_sendmsg+0xee/0x170
[ 1376.655442][   T73]      __sys_sendmsg+0xcd/0x170
[ 1376.655442][   T73]      do_syscall_64+0xc6/0x1e0
[ 1376.655442][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1376.655442][   T73] 
[ 1376.657343][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1376.657688][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1376.657688][   T73]      netdev_get_by_index+0x5e/0x80
[ 1376.657688][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1376.657688][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1376.657688][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1376.657688][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1376.657688][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1376.657688][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1376.657688][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1376.657688][   T73]      addrconf_dad_begin+0x310/0x670
[ 1376.657688][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1376.657688][   T73]      process_one_work+0x84d/0x18a0
[ 1376.657688][   T73]      worker_thread+0x587/0xd30
[ 1376.657688][   T73]      kthread+0x28a/0x350
[ 1376.657688][   T73]      ret_from_fork+0x31/0x70
[ 1376.657688][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1376.657688][   T73] 
[ 1376.659951][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1376.659951][   T73]      netdev_get_by_index+0x5e/0x80
[ 1376.659951][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1376.659951][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1376.659951][   T73]      ip6_route_add+0x1c/0x140
[ 1376.659951][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1376.659951][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1376.659951][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1376.659951][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1376.659951][   T73]      netlink_rcv_skb+0x130/0x360
[ 1376.659951][   T73]      netlink_unicast+0x449/0x710
[ 1376.659951][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1376.659951][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1376.659951][   T73]      ___sys_sendmsg+0xee/0x170
[ 1376.659951][   T73]      __sys_sendmsg+0xcd/0x170
[ 1376.659951][   T73]      do_syscall_64+0xc6/0x1e0
[ 1376.659951][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1376.659951][   T73] 
[ 1376.662322][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1376.662322][   T73]      netdev_get_by_index+0x5e/0x80
[ 1376.662322][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1376.662322][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1376.662322][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1376.662322][   T73]      ipv6_add_addr+0x411/0x2000
[ 1376.662322][   T73]      inet6_addr_add+0x30e/0xa40
[ 1376.662322][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1376.662322][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1376.662322][   T73]      netlink_rcv_skb+0x130/0x360
[ 1376.662322][   T73]      netlink_unicast+0x449/0x710
[ 1376.662322][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1376.662322][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1376.662322][   T73]      ___sys_sendmsg+0xee/0x170
[ 1376.662322][   T73]      __sys_sendmsg+0xcd/0x170
[ 1376.662322][   T73]      do_syscall_64+0xc6/0x1e0
[ 1376.662322][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1376.662322][   T73] 
[ 1376.664720][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1376.664720][   T73]      netdev_get_by_index+0x5e/0x80
[ 1376.664720][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1376.664720][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1376.664720][   T73]      ip6_route_add+0x1c/0x140
[ 1376.664720][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1376.664720][   T73]      addrconf_add_dev+0xe2/0x170
[ 1376.664720][   T73]      inet6_addr_add+0x12f/0xa40
[ 1376.664720][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1376.664720][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1376.664720][   T73]      netlink_rcv_skb+0x130/0x360
[ 1376.664720][   T73]      netlink_unicast+0x449/0x710
[ 1376.664720][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1376.664720][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1376.664720][   T73]      ___sys_sendmsg+0xee/0x170
[ 1376.664720][   T73]      __sys_sendmsg+0xcd/0x170
[ 1376.664720][   T73]      do_syscall_64+0xc6/0x1e0
[ 1376.664720][   T73] 
[ 1376.667175][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1376.667175][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1376.667175][   T73]      ipv6_find_idev+0x102/0x170
[ 1376.667175][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1376.667175][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1376.667175][   T73]      netlink_rcv_skb+0x130/0x360
[ 1376.667175][   T73]      netlink_unicast+0x449/0x710
[ 1376.667175][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1376.667175][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1376.667175][   T73]      ___sys_sendmsg+0xee/0x170
[ 1376.667175][   T73]      __sys_sendmsg+0xcd/0x170
[ 1376.667175][   T73]      do_syscall_64+0xc6/0x1e0
[ 1376.667175][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1376.667175][   T73] 
[ 1376.669023][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1376.669023][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1376.669023][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1376.669023][   T73]      ipv6_find_idev+0x102/0x170
[ 1376.669023][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1376.669023][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1376.669023][   T73]      netlink_rcv_skb+0x130/0x360
[ 1376.669023][   T73]      netlink_unicast+0x449/0x710
[ 1376.669023][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1376.669023][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1376.669023][   T73]      ___sys_sendmsg+0xee/0x170
[ 1376.669023][   T73]      __sys_sendmsg+0xcd/0x170
[ 1376.669023][   T73]      do_syscall_64+0xc6/0x1e0
[ 1376.669023][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1376.669023][   T73] 
[ 1386.687824][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1386.688343][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1386.688343][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1386.688343][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1386.688343][   T73]      fib6_nh_init+0xa22/0x1580
[ 1386.688343][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1386.688343][   T73]      ip6_route_add+0x1c/0x140
[ 1386.688343][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1386.688343][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1386.688343][   T73]      netlink_rcv_skb+0x130/0x360
[ 1386.688343][   T73]      netlink_unicast+0x449/0x710
[ 1386.688343][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1386.688343][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1386.688343][   T73]      ___sys_sendmsg+0xee/0x170
[ 1386.688343][   T73]      __sys_sendmsg+0xcd/0x170
[ 1386.688343][   T73]      do_syscall_64+0xc6/0x1e0
[ 1386.688343][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1386.688343][   T73] 
[ 1386.690317][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1386.690317][   T73]      dst_init+0x84/0x4a0
[ 1386.690317][   T73]      dst_alloc+0x97/0x150
[ 1386.690317][   T73]      ip6_dst_alloc+0x23/0x90
[ 1386.690317][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1386.690317][   T73]      ip6_pol_route+0x56f/0x840
[ 1386.690317][   T73]      fib6_rule_lookup+0x456/0x630
[ 1386.690317][   T73]      ip6_route_input+0x59c/0xa50
[ 1386.690317][   T73]      ipv6_rcv+0x397/0x810
[ 1386.690317][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1386.690317][   T73]      process_backlog+0x101/0x620
[ 1386.690317][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1386.690317][   T73]      net_rx_action+0x495/0xbe0
[ 1386.690317][   T73]      __do_softirq+0x1b5/0x7f6
[ 1386.690317][   T73] 
[ 1386.692019][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1386.692019][   T73]      netdev_get_by_index+0x5e/0x80
[ 1386.692019][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1386.692019][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1386.692019][   T73]      ip6_route_add+0x1c/0x140
[ 1386.692019][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1386.692019][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1386.692019][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1386.692019][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1386.692019][   T73]      netlink_rcv_skb+0x130/0x360
[ 1386.692019][   T73]      netlink_unicast+0x449/0x710
[ 1386.692019][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1386.692019][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1386.692019][   T73]      ___sys_sendmsg+0xee/0x170
[ 1386.692019][   T73]      __sys_sendmsg+0xcd/0x170
[ 1386.692019][   T73]      do_syscall_64+0xc6/0x1e0
[ 1386.692019][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1386.692019][   T73] 
[ 1386.694089][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1386.694089][   T73]      netdev_get_by_index+0x5e/0x80
[ 1386.694089][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1386.694089][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1386.694089][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1386.694089][   T73]      ipv6_add_addr+0x411/0x2000
[ 1386.694089][   T73]      inet6_addr_add+0x30e/0xa40
[ 1386.694089][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1386.694089][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1386.694089][   T73]      netlink_rcv_skb+0x130/0x360
[ 1386.694089][   T73]      netlink_unicast+0x449/0x710
[ 1386.694089][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1386.694089][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1386.694089][   T73]      ___sys_sendmsg+0xee/0x170
[ 1386.694089][   T73]      __sys_sendmsg+0xcd/0x170
[ 1386.694089][   T73]      do_syscall_64+0xc6/0x1e0
[ 1386.694089][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1386.694089][   T73] 
[ 1386.696139][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1386.696139][   T73]      netdev_get_by_index+0x5e/0x80
[ 1386.696139][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1386.696139][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1386.696139][   T73]      ip6_route_add+0x1c/0x140
[ 1386.696139][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1386.696139][   T73]      addrconf_add_dev+0xe2/0x170
[ 1386.696139][   T73]      inet6_addr_add+0x12f/0xa40
[ 1386.696139][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1386.696139][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1386.696139][   T73]      netlink_rcv_skb+0x130/0x360
[ 1386.696139][   T73]      netlink_unicast+0x449/0x710
[ 1386.696139][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1386.696139][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1386.696139][   T73]      ___sys_sendmsg+0xee/0x170
[ 1386.696139][   T73]      __sys_sendmsg+0xcd/0x170
[ 1386.696139][   T73]      do_syscall_64+0xc6/0x1e0
[ 1386.696139][   T73] 
[ 1386.698155][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1386.698155][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1386.698155][   T73]      ipv6_find_idev+0x102/0x170
[ 1386.698155][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1386.698155][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1386.698155][   T73]      netlink_rcv_skb+0x130/0x360
[ 1386.698155][   T73]      netlink_unicast+0x449/0x710
[ 1386.698155][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1386.698155][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1386.698155][   T73]      ___sys_sendmsg+0xee/0x170
[ 1386.698155][   T73]      __sys_sendmsg+0xcd/0x170
[ 1386.698155][   T73]      do_syscall_64+0xc6/0x1e0
[ 1386.698155][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1386.698155][   T73] 
[ 1386.699741][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1386.699741][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1386.699741][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1386.699741][   T73]      ipv6_find_idev+0x102/0x170
[ 1386.699741][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1386.699741][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1386.699741][   T73]      netlink_rcv_skb+0x130/0x360
[ 1386.699741][   T73]      netlink_unicast+0x449/0x710
[ 1386.699741][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1386.699741][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1386.699741][   T73]      ___sys_sendmsg+0xee/0x170
[ 1386.699741][   T73]      __sys_sendmsg+0xcd/0x170
[ 1386.699741][   T73]      do_syscall_64+0xc6/0x1e0
[ 1386.699741][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1386.699741][   T73] 
[ 1386.701517][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1386.701820][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1386.701820][   T73]      netdev_get_by_index+0x5e/0x80
[ 1386.701820][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1386.701820][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1386.701820][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1386.701820][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1386.701820][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1386.701820][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1386.701820][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1386.701820][   T73]      addrconf_dad_begin+0x310/0x670
[ 1386.701820][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1386.701820][   T73]      process_one_work+0x84d/0x18a0
[ 1386.701820][   T73]      worker_thread+0x587/0xd30
[ 1386.701820][   T73]      kthread+0x28a/0x350
[ 1386.701820][   T73]      ret_from_fork+0x31/0x70
[ 1386.701820][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1386.701820][   T73] 
[ 1386.703744][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1386.703744][   T73]      netdev_get_by_index+0x5e/0x80
[ 1386.703744][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1386.703744][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1386.703744][   T73]      ip6_route_add+0x1c/0x140
[ 1386.703744][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1386.703744][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1386.703744][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1386.703744][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1386.703744][   T73]      netlink_rcv_skb+0x130/0x360
[ 1386.703744][   T73]      netlink_unicast+0x449/0x710
[ 1386.703744][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1386.703744][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1386.703744][   T73]      ___sys_sendmsg+0xee/0x170
[ 1386.703744][   T73]      __sys_sendmsg+0xcd/0x170
[ 1386.703744][   T73]      do_syscall_64+0xc6/0x1e0
[ 1386.703744][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1386.703744][   T73] 
[ 1386.705756][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1386.705756][   T73]      netdev_get_by_index+0x5e/0x80
[ 1386.705756][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1386.705756][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1386.705756][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1386.705756][   T73]      ipv6_add_addr+0x411/0x2000
[ 1386.705756][   T73]      inet6_addr_add+0x30e/0xa40
[ 1386.705756][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1386.705756][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1386.705756][   T73]      netlink_rcv_skb+0x130/0x360
[ 1386.705756][   T73]      netlink_unicast+0x449/0x710
[ 1386.705756][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1386.705756][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1386.705756][   T73]      ___sys_sendmsg+0xee/0x170
[ 1386.705756][   T73]      __sys_sendmsg+0xcd/0x170
[ 1386.705756][   T73]      do_syscall_64+0xc6/0x1e0
[ 1386.705756][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1386.705756][   T73] 
[ 1386.707809][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1386.707809][   T73]      netdev_get_by_index+0x5e/0x80
[ 1386.707809][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1386.707809][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1386.707809][   T73]      ip6_route_add+0x1c/0x140
[ 1386.707809][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1386.707809][   T73]      addrconf_add_dev+0xe2/0x170
[ 1386.707809][   T73]      inet6_addr_add+0x12f/0xa40
[ 1386.707809][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1386.707809][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1386.707809][   T73]      netlink_rcv_skb+0x130/0x360
[ 1386.707809][   T73]      netlink_unicast+0x449/0x710
[ 1386.707809][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1386.707809][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1386.707809][   T73]      ___sys_sendmsg+0xee/0x170
[ 1386.707809][   T73]      __sys_sendmsg+0xcd/0x170
[ 1386.707809][   T73]      do_syscall_64+0xc6/0x1e0
[ 1386.707809][   T73] 
[ 1386.709828][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1386.709828][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1386.709828][   T73]      ipv6_find_idev+0x102/0x170
[ 1386.709828][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1386.709828][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1386.709828][   T73]      netlink_rcv_skb+0x130/0x360
[ 1386.709828][   T73]      netlink_unicast+0x449/0x710
[ 1386.709828][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1386.709828][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1386.709828][   T73]      ___sys_sendmsg+0xee/0x170
[ 1386.709828][   T73]      __sys_sendmsg+0xcd/0x170
[ 1386.709828][   T73]      do_syscall_64+0xc6/0x1e0
[ 1386.709828][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1386.709828][   T73] 
[ 1386.711422][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1386.711422][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1386.711422][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1386.711422][   T73]      ipv6_find_idev+0x102/0x170
[ 1386.711422][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1386.711422][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1386.711422][   T73]      netlink_rcv_skb+0x130/0x360
[ 1386.711422][   T73]      netlink_unicast+0x449/0x710
[ 1386.711422][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1386.711422][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1386.711422][   T73]      ___sys_sendmsg+0xee/0x170
[ 1386.711422][   T73]      __sys_sendmsg+0xcd/0x170
[ 1386.711422][   T73]      do_syscall_64+0xc6/0x1e0
[ 1386.711422][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1386.711422][   T73] 
[ 1386.713164][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1386.713431][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1386.713431][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1386.713431][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1386.713431][   T73]      fib6_nh_init+0xa22/0x1580
[ 1386.713431][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1386.713431][   T73]      ip6_route_add+0x1c/0x140
[ 1386.713431][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1386.713431][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1386.713431][   T73]      netlink_rcv_skb+0x130/0x360
[ 1386.713431][   T73]      netlink_unicast+0x449/0x710
[ 1386.713431][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1386.713431][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1386.713431][   T73]      ___sys_sendmsg+0xee/0x170
[ 1386.713431][   T73]      __sys_sendmsg+0xcd/0x170
[ 1386.713431][   T73]      do_syscall_64+0xc6/0x1e0
[ 1386.713431][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1386.713431][   T73] 
[ 1386.715557][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1386.715557][   T73]      dst_init+0x84/0x4a0
[ 1386.715557][   T73]      dst_alloc+0x97/0x150
[ 1386.715557][   T73]      ip6_dst_alloc+0x23/0x90
[ 1386.715557][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1386.715557][   T73]      ip6_pol_route+0x56f/0x840
[ 1386.715557][   T73]      fib6_rule_lookup+0x456/0x630
[ 1386.715557][   T73]      ip6_route_input+0x59c/0xa50
[ 1386.715557][   T73]      ipv6_rcv+0x397/0x810
[ 1386.715557][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1386.715557][   T73]      process_backlog+0x101/0x620
[ 1386.715557][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1386.715557][   T73]      net_rx_action+0x495/0xbe0
[ 1386.715557][   T73]      __do_softirq+0x1b5/0x7f6
[ 1386.715557][   T73] 
[ 1386.717429][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1386.717429][   T73]      netdev_get_by_index+0x5e/0x80
[ 1386.717429][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1386.717429][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1386.717429][   T73]      ip6_route_add+0x1c/0x140
[ 1386.717429][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1386.717429][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1386.717429][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1386.717429][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1386.717429][   T73]      netlink_rcv_skb+0x130/0x360
[ 1386.717429][   T73]      netlink_unicast+0x449/0x710
[ 1386.717429][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1386.717429][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1386.717429][   T73]      ___sys_sendmsg+0xee/0x170
[ 1386.717429][   T73]      __sys_sendmsg+0xcd/0x170
[ 1386.717429][   T73]      do_syscall_64+0xc6/0x1e0
[ 1386.717429][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1386.717429][   T73] 
[ 1386.719736][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1386.719736][   T73]      netdev_get_by_index+0x5e/0x80
[ 1386.719736][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1386.719736][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1386.719736][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1386.719736][   T73]      ipv6_add_addr+0x411/0x2000
[ 1386.719736][   T73]      inet6_addr_add+0x30e/0xa40
[ 1386.719736][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1386.719736][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1386.719736][   T73]      netlink_rcv_skb+0x130/0x360
[ 1386.719736][   T73]      netlink_unicast+0x449/0x710
[ 1386.719736][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1386.719736][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1386.719736][   T73]      ___sys_sendmsg+0xee/0x170
[ 1386.719736][   T73]      __sys_sendmsg+0xcd/0x170
[ 1386.719736][   T73]      do_syscall_64+0xc6/0x1e0
[ 1386.719736][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1386.719736][   T73] 
[ 1386.722055][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1386.722055][   T73]      netdev_get_by_index+0x5e/0x80
[ 1386.722055][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1386.722055][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1386.722055][   T73]      ip6_route_add+0x1c/0x140
[ 1386.722055][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1386.722055][   T73]      addrconf_add_dev+0xe2/0x170
[ 1386.722055][   T73]      inet6_addr_add+0x12f/0xa40
[ 1386.722055][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1386.722055][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1386.722055][   T73]      netlink_rcv_skb+0x130/0x360
[ 1386.722055][   T73]      netlink_unicast+0x449/0x710
[ 1386.722055][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1386.722055][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1386.722055][   T73]      ___sys_sendmsg+0xee/0x170
[ 1386.722055][   T73]      __sys_sendmsg+0xcd/0x170
[ 1386.722055][   T73]      do_syscall_64+0xc6/0x1e0
[ 1386.722055][   T73] 
[ 1386.724215][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1386.724215][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1386.724215][   T73]      ipv6_find_idev+0x102/0x170
[ 1386.724215][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1386.724215][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1386.724215][   T73]      netlink_rcv_skb+0x130/0x360
[ 1386.724215][   T73]      netlink_unicast+0x449/0x710
[ 1386.724215][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1386.724215][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1386.724215][   T73]      ___sys_sendmsg+0xee/0x170
[ 1386.724215][   T73]      __sys_sendmsg+0xcd/0x170
[ 1386.724215][   T73]      do_syscall_64+0xc6/0x1e0
[ 1386.724215][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1386.724215][   T73] 
[ 1386.725992][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1386.725992][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1386.725992][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1386.725992][   T73]      ipv6_find_idev+0x102/0x170
[ 1386.725992][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1386.725992][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1386.725992][   T73]      netlink_rcv_skb+0x130/0x360
[ 1386.725992][   T73]      netlink_unicast+0x449/0x710
[ 1386.725992][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1386.725992][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1386.725992][   T73]      ___sys_sendmsg+0xee/0x170
[ 1386.725992][   T73]      __sys_sendmsg+0xcd/0x170
[ 1386.725992][   T73]      do_syscall_64+0xc6/0x1e0
[ 1386.725992][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1386.725992][   T73] 
[ 1386.728353][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1386.729073][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1386.729073][   T73]      netdev_get_by_index+0x5e/0x80
[ 1386.729073][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1386.729073][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1386.729073][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1386.729073][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1386.729073][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1386.729073][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1386.729073][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1386.729073][   T73]      addrconf_dad_begin+0x310/0x670
[ 1386.729073][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1386.729073][   T73]      process_one_work+0x84d/0x18a0
[ 1386.729073][   T73]      worker_thread+0x587/0xd30
[ 1386.729073][   T73]      kthread+0x28a/0x350
[ 1386.729073][   T73]      ret_from_fork+0x31/0x70
[ 1386.729073][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1386.729073][   T73] 
[ 1386.731036][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1386.731036][   T73]      netdev_get_by_index+0x5e/0x80
[ 1386.731036][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1386.731036][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1386.731036][   T73]      ip6_route_add+0x1c/0x140
[ 1386.731036][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1386.731036][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1386.731036][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1386.731036][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1386.731036][   T73]      netlink_rcv_skb+0x130/0x360
[ 1386.731036][   T73]      netlink_unicast+0x449/0x710
[ 1386.731036][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1386.731036][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1386.731036][   T73]      ___sys_sendmsg+0xee/0x170
[ 1386.731036][   T73]      __sys_sendmsg+0xcd/0x170
[ 1386.731036][   T73]      do_syscall_64+0xc6/0x1e0
[ 1386.731036][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1386.731036][   T73] 
[ 1386.733091][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1386.733091][   T73]      netdev_get_by_index+0x5e/0x80
[ 1386.733091][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1386.733091][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1386.733091][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1386.733091][   T73]      ipv6_add_addr+0x411/0x2000
[ 1386.733091][   T73]      inet6_addr_add+0x30e/0xa40
[ 1386.733091][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1386.733091][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1386.733091][   T73]      netlink_rcv_skb+0x130/0x360
[ 1386.733091][   T73]      netlink_unicast+0x449/0x710
[ 1386.733091][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1386.733091][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1386.733091][   T73]      ___sys_sendmsg+0xee/0x170
[ 1386.733091][   T73]      __sys_sendmsg+0xcd/0x170
[ 1386.733091][   T73]      do_syscall_64+0xc6/0x1e0
[ 1386.733091][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1386.733091][   T73] 
[ 1386.735143][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1386.735143][   T73]      netdev_get_by_index+0x5e/0x80
[ 1386.735143][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1386.735143][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1386.735143][   T73]      ip6_route_add+0x1c/0x140
[ 1386.735143][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1386.735143][   T73]      addrconf_add_dev+0xe2/0x170
[ 1386.735143][   T73]      inet6_addr_add+0x12f/0xa40
[ 1386.735143][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1386.735143][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1386.735143][   T73]      netlink_rcv_skb+0x130/0x360
[ 1386.735143][   T73]      netlink_unicast+0x449/0x710
[ 1386.735143][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1386.735143][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1386.735143][   T73]      ___sys_sendmsg+0xee/0x170
[ 1386.735143][   T73]      __sys_sendmsg+0xcd/0x170
[ 1386.735143][   T73]      do_syscall_64+0xc6/0x1e0
[ 1386.735143][   T73] 
[ 1386.737337][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1386.737337][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1386.737337][   T73]      ipv6_find_idev+0x102/0x170
[ 1386.737337][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1386.737337][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1386.737337][   T73]      netlink_rcv_skb+0x130/0x360
[ 1386.737337][   T73]      netlink_unicast+0x449/0x710
[ 1386.737337][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1386.737337][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1386.737337][   T73]      ___sys_sendmsg+0xee/0x170
[ 1386.737337][   T73]      __sys_sendmsg+0xcd/0x170
[ 1386.737337][   T73]      do_syscall_64+0xc6/0x1e0
[ 1386.737337][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1386.737337][   T73] 
[ 1386.739152][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1386.739152][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1386.739152][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1386.739152][   T73]      ipv6_find_idev+0x102/0x170
[ 1386.739152][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1386.739152][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1386.739152][   T73]      netlink_rcv_skb+0x130/0x360
[ 1386.739152][   T73]      netlink_unicast+0x449/0x710
[ 1386.739152][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1386.739152][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1386.739152][   T73]      ___sys_sendmsg+0xee/0x170
[ 1386.739152][   T73]      __sys_sendmsg+0xcd/0x170
[ 1386.739152][   T73]      do_syscall_64+0xc6/0x1e0
[ 1386.739152][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1386.739152][   T73] 
[ 1396.983757][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1396.984350][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1396.984350][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1396.984350][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1396.984350][   T73]      fib6_nh_init+0xa22/0x1580
[ 1396.984350][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1396.984350][   T73]      ip6_route_add+0x1c/0x140
[ 1396.984350][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1396.984350][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1396.984350][   T73]      netlink_rcv_skb+0x130/0x360
[ 1396.984350][   T73]      netlink_unicast+0x449/0x710
[ 1396.984350][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1396.984350][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1396.984350][   T73]      ___sys_sendmsg+0xee/0x170
[ 1396.984350][   T73]      __sys_sendmsg+0xcd/0x170
[ 1396.984350][   T73]      do_syscall_64+0xc6/0x1e0
[ 1396.984350][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1396.984350][   T73] 
[ 1396.986456][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1396.986456][   T73]      dst_init+0x84/0x4a0
[ 1396.986456][   T73]      dst_alloc+0x97/0x150
[ 1396.986456][   T73]      ip6_dst_alloc+0x23/0x90
[ 1396.986456][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1396.986456][   T73]      ip6_pol_route+0x56f/0x840
[ 1396.986456][   T73]      fib6_rule_lookup+0x456/0x630
[ 1396.986456][   T73]      ip6_route_input+0x59c/0xa50
[ 1396.986456][   T73]      ipv6_rcv+0x397/0x810
[ 1396.986456][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1396.986456][   T73]      process_backlog+0x101/0x620
[ 1396.986456][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1396.986456][   T73]      net_rx_action+0x495/0xbe0
[ 1396.986456][   T73]      __do_softirq+0x1b5/0x7f6
[ 1396.986456][   T73] 
[ 1396.988151][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1396.988151][   T73]      netdev_get_by_index+0x5e/0x80
[ 1396.988151][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1396.988151][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1396.988151][   T73]      ip6_route_add+0x1c/0x140
[ 1396.988151][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1396.988151][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1396.988151][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1396.988151][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1396.988151][   T73]      netlink_rcv_skb+0x130/0x360
[ 1396.988151][   T73]      netlink_unicast+0x449/0x710
[ 1396.988151][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1396.988151][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1396.988151][   T73]      ___sys_sendmsg+0xee/0x170
[ 1396.988151][   T73]      __sys_sendmsg+0xcd/0x170
[ 1396.988151][   T73]      do_syscall_64+0xc6/0x1e0
[ 1396.988151][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1396.988151][   T73] 
[ 1396.990213][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1396.990213][   T73]      netdev_get_by_index+0x5e/0x80
[ 1396.990213][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1396.990213][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1396.990213][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1396.990213][   T73]      ipv6_add_addr+0x411/0x2000
[ 1396.990213][   T73]      inet6_addr_add+0x30e/0xa40
[ 1396.990213][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1396.990213][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1396.990213][   T73]      netlink_rcv_skb+0x130/0x360
[ 1396.990213][   T73]      netlink_unicast+0x449/0x710
[ 1396.990213][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1396.990213][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1396.990213][   T73]      ___sys_sendmsg+0xee/0x170
[ 1396.990213][   T73]      __sys_sendmsg+0xcd/0x170
[ 1396.990213][   T73]      do_syscall_64+0xc6/0x1e0
[ 1396.990213][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1396.990213][   T73] 
[ 1396.992251][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1396.992251][   T73]      netdev_get_by_index+0x5e/0x80
[ 1396.992251][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1396.992251][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1396.992251][   T73]      ip6_route_add+0x1c/0x140
[ 1396.992251][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1396.992251][   T73]      addrconf_add_dev+0xe2/0x170
[ 1396.992251][   T73]      inet6_addr_add+0x12f/0xa40
[ 1396.992251][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1396.992251][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1396.992251][   T73]      netlink_rcv_skb+0x130/0x360
[ 1396.992251][   T73]      netlink_unicast+0x449/0x710
[ 1396.992251][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1396.992251][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1396.992251][   T73]      ___sys_sendmsg+0xee/0x170
[ 1396.992251][   T73]      __sys_sendmsg+0xcd/0x170
[ 1396.992251][   T73]      do_syscall_64+0xc6/0x1e0
[ 1396.992251][   T73] 
[ 1396.994644][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1396.994644][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1396.994644][   T73]      ipv6_find_idev+0x102/0x170
[ 1396.994644][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1396.994644][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1396.994644][   T73]      netlink_rcv_skb+0x130/0x360
[ 1396.994644][   T73]      netlink_unicast+0x449/0x710
[ 1396.994644][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1396.994644][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1396.994644][   T73]      ___sys_sendmsg+0xee/0x170
[ 1396.994644][   T73]      __sys_sendmsg+0xcd/0x170
[ 1396.994644][   T73]      do_syscall_64+0xc6/0x1e0
[ 1396.994644][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1396.994644][   T73] 
[ 1396.996239][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1396.996239][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1396.996239][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1396.996239][   T73]      ipv6_find_idev+0x102/0x170
[ 1396.996239][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1396.996239][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1396.996239][   T73]      netlink_rcv_skb+0x130/0x360
[ 1396.996239][   T73]      netlink_unicast+0x449/0x710
[ 1396.996239][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1396.996239][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1396.996239][   T73]      ___sys_sendmsg+0xee/0x170
[ 1396.996239][   T73]      __sys_sendmsg+0xcd/0x170
[ 1396.996239][   T73]      do_syscall_64+0xc6/0x1e0
[ 1396.996239][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1396.996239][   T73] 
[ 1396.998228][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1396.998532][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1396.998532][   T73]      netdev_get_by_index+0x5e/0x80
[ 1396.998532][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1396.998532][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1396.998532][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1396.998532][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1396.998532][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1396.998532][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1396.998532][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1396.998532][   T73]      addrconf_dad_begin+0x310/0x670
[ 1396.998532][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1396.998532][   T73]      process_one_work+0x84d/0x18a0
[ 1396.998532][   T73]      worker_thread+0x587/0xd30
[ 1396.998532][   T73]      kthread+0x28a/0x350
[ 1396.998532][   T73]      ret_from_fork+0x31/0x70
[ 1396.998532][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1396.998532][   T73] 
[ 1397.000491][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1397.000491][   T73]      netdev_get_by_index+0x5e/0x80
[ 1397.000491][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1397.000491][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1397.000491][   T73]      ip6_route_add+0x1c/0x140
[ 1397.000491][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1397.000491][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1397.000491][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1397.000491][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1397.000491][   T73]      netlink_rcv_skb+0x130/0x360
[ 1397.000491][   T73]      netlink_unicast+0x449/0x710
[ 1397.000491][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1397.000491][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1397.000491][   T73]      ___sys_sendmsg+0xee/0x170
[ 1397.000491][   T73]      __sys_sendmsg+0xcd/0x170
[ 1397.000491][   T73]      do_syscall_64+0xc6/0x1e0
[ 1397.000491][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1397.000491][   T73] 
[ 1397.002535][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1397.002535][   T73]      netdev_get_by_index+0x5e/0x80
[ 1397.002535][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1397.002535][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1397.002535][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1397.002535][   T73]      ipv6_add_addr+0x411/0x2000
[ 1397.002535][   T73]      inet6_addr_add+0x30e/0xa40
[ 1397.002535][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1397.002535][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1397.002535][   T73]      netlink_rcv_skb+0x130/0x360
[ 1397.002535][   T73]      netlink_unicast+0x449/0x710
[ 1397.002535][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1397.002535][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1397.002535][   T73]      ___sys_sendmsg+0xee/0x170
[ 1397.002535][   T73]      __sys_sendmsg+0xcd/0x170
[ 1397.002535][   T73]      do_syscall_64+0xc6/0x1e0
[ 1397.002535][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1397.002535][   T73] 
[ 1397.004581][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1397.004581][   T73]      netdev_get_by_index+0x5e/0x80
[ 1397.004581][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1397.004581][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1397.004581][   T73]      ip6_route_add+0x1c/0x140
[ 1397.004581][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1397.004581][   T73]      addrconf_add_dev+0xe2/0x170
[ 1397.004581][   T73]      inet6_addr_add+0x12f/0xa40
[ 1397.004581][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1397.004581][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1397.004581][   T73]      netlink_rcv_skb+0x130/0x360
[ 1397.004581][   T73]      netlink_unicast+0x449/0x710
[ 1397.004581][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1397.004581][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1397.004581][   T73]      ___sys_sendmsg+0xee/0x170
[ 1397.004581][   T73]      __sys_sendmsg+0xcd/0x170
[ 1397.004581][   T73]      do_syscall_64+0xc6/0x1e0
[ 1397.004581][   T73] 
[ 1397.006596][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1397.006596][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1397.006596][   T73]      ipv6_find_idev+0x102/0x170
[ 1397.006596][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1397.006596][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1397.006596][   T73]      netlink_rcv_skb+0x130/0x360
[ 1397.006596][   T73]      netlink_unicast+0x449/0x710
[ 1397.006596][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1397.006596][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1397.006596][   T73]      ___sys_sendmsg+0xee/0x170
[ 1397.006596][   T73]      __sys_sendmsg+0xcd/0x170
[ 1397.006596][   T73]      do_syscall_64+0xc6/0x1e0
[ 1397.006596][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1397.006596][   T73] 
[ 1397.008182][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1397.008182][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1397.008182][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1397.008182][   T73]      ipv6_find_idev+0x102/0x170
[ 1397.008182][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1397.008182][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1397.008182][   T73]      netlink_rcv_skb+0x130/0x360
[ 1397.008182][   T73]      netlink_unicast+0x449/0x710
[ 1397.008182][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1397.008182][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1397.008182][   T73]      ___sys_sendmsg+0xee/0x170
[ 1397.008182][   T73]      __sys_sendmsg+0xcd/0x170
[ 1397.008182][   T73]      do_syscall_64+0xc6/0x1e0
[ 1397.008182][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1397.008182][   T73] 
[ 1397.009926][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1397.010213][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1397.010213][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1397.010213][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1397.010213][   T73]      fib6_nh_init+0xa22/0x1580
[ 1397.010213][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1397.010213][   T73]      ip6_route_add+0x1c/0x140
[ 1397.010213][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1397.010213][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1397.010213][   T73]      netlink_rcv_skb+0x130/0x360
[ 1397.010213][   T73]      netlink_unicast+0x449/0x710
[ 1397.010213][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1397.010213][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1397.010213][   T73]      ___sys_sendmsg+0xee/0x170
[ 1397.010213][   T73]      __sys_sendmsg+0xcd/0x170
[ 1397.010213][   T73]      do_syscall_64+0xc6/0x1e0
[ 1397.010213][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1397.010213][   T73] 
[ 1397.012360][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1397.012360][   T73]      dst_init+0x84/0x4a0
[ 1397.012360][   T73]      dst_alloc+0x97/0x150
[ 1397.012360][   T73]      ip6_dst_alloc+0x23/0x90
[ 1397.012360][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1397.012360][   T73]      ip6_pol_route+0x56f/0x840
[ 1397.012360][   T73]      fib6_rule_lookup+0x456/0x630
[ 1397.012360][   T73]      ip6_route_input+0x59c/0xa50
[ 1397.012360][   T73]      ipv6_rcv+0x397/0x810
[ 1397.012360][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1397.012360][   T73]      process_backlog+0x101/0x620
[ 1397.012360][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1397.012360][   T73]      net_rx_action+0x495/0xbe0
[ 1397.012360][   T73]      __do_softirq+0x1b5/0x7f6
[ 1397.012360][   T73] 
[ 1397.014272][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1397.014272][   T73]      netdev_get_by_index+0x5e/0x80
[ 1397.014272][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1397.014272][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1397.014272][   T73]      ip6_route_add+0x1c/0x140
[ 1397.014272][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1397.014272][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1397.014272][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1397.014272][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1397.014272][   T73]      netlink_rcv_skb+0x130/0x360
[ 1397.014272][   T73]      netlink_unicast+0x449/0x710
[ 1397.014272][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1397.014272][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1397.014272][   T73]      ___sys_sendmsg+0xee/0x170
[ 1397.014272][   T73]      __sys_sendmsg+0xcd/0x170
[ 1397.014272][   T73]      do_syscall_64+0xc6/0x1e0
[ 1397.014272][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1397.014272][   T73] 
[ 1397.016532][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1397.016532][   T73]      netdev_get_by_index+0x5e/0x80
[ 1397.016532][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1397.016532][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1397.016532][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1397.016532][   T73]      ipv6_add_addr+0x411/0x2000
[ 1397.016532][   T73]      inet6_addr_add+0x30e/0xa40
[ 1397.016532][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1397.016532][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1397.016532][   T73]      netlink_rcv_skb+0x130/0x360
[ 1397.016532][   T73]      netlink_unicast+0x449/0x710
[ 1397.016532][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1397.016532][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1397.016532][   T73]      ___sys_sendmsg+0xee/0x170
[ 1397.016532][   T73]      __sys_sendmsg+0xcd/0x170
[ 1397.016532][   T73]      do_syscall_64+0xc6/0x1e0
[ 1397.016532][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1397.016532][   T73] 
[ 1397.018812][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1397.018812][   T73]      netdev_get_by_index+0x5e/0x80
[ 1397.018812][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1397.018812][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1397.018812][   T73]      ip6_route_add+0x1c/0x140
[ 1397.018812][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1397.018812][   T73]      addrconf_add_dev+0xe2/0x170
[ 1397.018812][   T73]      inet6_addr_add+0x12f/0xa40
[ 1397.018812][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1397.018812][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1397.018812][   T73]      netlink_rcv_skb+0x130/0x360
[ 1397.018812][   T73]      netlink_unicast+0x449/0x710
[ 1397.018812][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1397.018812][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1397.018812][   T73]      ___sys_sendmsg+0xee/0x170
[ 1397.018812][   T73]      __sys_sendmsg+0xcd/0x170
[ 1397.018812][   T73]      do_syscall_64+0xc6/0x1e0
[ 1397.018812][   T73] 
[ 1397.020981][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1397.020981][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1397.020981][   T73]      ipv6_find_idev+0x102/0x170
[ 1397.020981][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1397.020981][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1397.020981][   T73]      netlink_rcv_skb+0x130/0x360
[ 1397.020981][   T73]      netlink_unicast+0x449/0x710
[ 1397.020981][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1397.020981][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1397.020981][   T73]      ___sys_sendmsg+0xee/0x170
[ 1397.020981][   T73]      __sys_sendmsg+0xcd/0x170
[ 1397.020981][   T73]      do_syscall_64+0xc6/0x1e0
[ 1397.020981][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1397.020981][   T73] 
[ 1397.022785][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1397.022785][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1397.022785][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1397.022785][   T73]      ipv6_find_idev+0x102/0x170
[ 1397.022785][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1397.022785][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1397.022785][   T73]      netlink_rcv_skb+0x130/0x360
[ 1397.022785][   T73]      netlink_unicast+0x449/0x710
[ 1397.022785][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1397.022785][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1397.022785][   T73]      ___sys_sendmsg+0xee/0x170
[ 1397.022785][   T73]      __sys_sendmsg+0xcd/0x170
[ 1397.022785][   T73]      do_syscall_64+0xc6/0x1e0
[ 1397.022785][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1397.022785][   T73] 
[ 1397.024745][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1397.025027][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1397.025027][   T73]      netdev_get_by_index+0x5e/0x80
[ 1397.025027][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1397.025027][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1397.025027][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1397.025027][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1397.025027][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1397.025027][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1397.025027][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1397.025027][   T73]      addrconf_dad_begin+0x310/0x670
[ 1397.025027][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1397.025027][   T73]      process_one_work+0x84d/0x18a0
[ 1397.025027][   T73]      worker_thread+0x587/0xd30
[ 1397.025027][   T73]      kthread+0x28a/0x350
[ 1397.025027][   T73]      ret_from_fork+0x31/0x70
[ 1397.025027][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1397.025027][   T73] 
[ 1397.027204][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1397.027204][   T73]      netdev_get_by_index+0x5e/0x80
[ 1397.027204][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1397.027204][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1397.027204][   T73]      ip6_route_add+0x1c/0x140
[ 1397.027204][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1397.027204][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1397.027204][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1397.027204][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1397.027204][   T73]      netlink_rcv_skb+0x130/0x360
[ 1397.027204][   T73]      netlink_unicast+0x449/0x710
[ 1397.027204][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1397.027204][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1397.027204][   T73]      ___sys_sendmsg+0xee/0x170
[ 1397.027204][   T73]      __sys_sendmsg+0xcd/0x170
[ 1397.027204][   T73]      do_syscall_64+0xc6/0x1e0
[ 1397.027204][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1397.027204][   T73] 
[ 1397.029466][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1397.029466][   T73]      netdev_get_by_index+0x5e/0x80
[ 1397.029466][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1397.029466][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1397.029466][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1397.029466][   T73]      ipv6_add_addr+0x411/0x2000
[ 1397.029466][   T73]      inet6_addr_add+0x30e/0xa40
[ 1397.029466][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1397.029466][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1397.029466][   T73]      netlink_rcv_skb+0x130/0x360
[ 1397.029466][   T73]      netlink_unicast+0x449/0x710
[ 1397.029466][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1397.029466][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1397.029466][   T73]      ___sys_sendmsg+0xee/0x170
[ 1397.029466][   T73]      __sys_sendmsg+0xcd/0x170
[ 1397.029466][   T73]      do_syscall_64+0xc6/0x1e0
[ 1397.029466][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1397.029466][   T73] 
[ 1397.031680][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1397.031680][   T73]      netdev_get_by_index+0x5e/0x80
[ 1397.031680][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1397.031680][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1397.031680][   T73]      ip6_route_add+0x1c/0x140
[ 1397.031680][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1397.031680][   T73]      addrconf_add_dev+0xe2/0x170
[ 1397.031680][   T73]      inet6_addr_add+0x12f/0xa40
[ 1397.031680][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1397.031680][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1397.031680][   T73]      netlink_rcv_skb+0x130/0x360
[ 1397.031680][   T73]      netlink_unicast+0x449/0x710
[ 1397.031680][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1397.031680][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1397.031680][   T73]      ___sys_sendmsg+0xee/0x170
[ 1397.031680][   T73]      __sys_sendmsg+0xcd/0x170
[ 1397.031680][   T73]      do_syscall_64+0xc6/0x1e0
[ 1397.031680][   T73] 
[ 1397.033966][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1397.033966][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1397.033966][   T73]      ipv6_find_idev+0x102/0x170
[ 1397.033966][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1397.033966][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1397.033966][   T73]      netlink_rcv_skb+0x130/0x360
[ 1397.033966][   T73]      netlink_unicast+0x449/0x710
[ 1397.033966][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1397.033966][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1397.033966][   T73]      ___sys_sendmsg+0xee/0x170
[ 1397.033966][   T73]      __sys_sendmsg+0xcd/0x170
[ 1397.033966][   T73]      do_syscall_64+0xc6/0x1e0
[ 1397.033966][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1397.033966][   T73] 
[ 1397.035704][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1397.035704][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1397.035704][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1397.035704][   T73]      ipv6_find_idev+0x102/0x170
[ 1397.035704][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1397.035704][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1397.035704][   T73]      netlink_rcv_skb+0x130/0x360
[ 1397.035704][   T73]      netlink_unicast+0x449/0x710
[ 1397.035704][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1397.035704][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1397.035704][   T73]      ___sys_sendmsg+0xee/0x170
[ 1397.035704][   T73]      __sys_sendmsg+0xcd/0x170
[ 1397.035704][   T73]      do_syscall_64+0xc6/0x1e0
[ 1397.035704][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1397.035704][   T73] 
[ 1407.279763][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1407.280306][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1407.280306][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1407.280306][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1407.280306][   T73]      fib6_nh_init+0xa22/0x1580
[ 1407.280306][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1407.280306][   T73]      ip6_route_add+0x1c/0x140
[ 1407.280306][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1407.280306][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1407.280306][   T73]      netlink_rcv_skb+0x130/0x360
[ 1407.280306][   T73]      netlink_unicast+0x449/0x710
[ 1407.280306][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1407.280306][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1407.280306][   T73]      ___sys_sendmsg+0xee/0x170
[ 1407.280306][   T73]      __sys_sendmsg+0xcd/0x170
[ 1407.280306][   T73]      do_syscall_64+0xc6/0x1e0
[ 1407.280306][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1407.280306][   T73] 
[ 1407.282271][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1407.282271][   T73]      dst_init+0x84/0x4a0
[ 1407.282271][   T73]      dst_alloc+0x97/0x150
[ 1407.282271][   T73]      ip6_dst_alloc+0x23/0x90
[ 1407.282271][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1407.282271][   T73]      ip6_pol_route+0x56f/0x840
[ 1407.282271][   T73]      fib6_rule_lookup+0x456/0x630
[ 1407.282271][   T73]      ip6_route_input+0x59c/0xa50
[ 1407.282271][   T73]      ipv6_rcv+0x397/0x810
[ 1407.282271][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1407.282271][   T73]      process_backlog+0x101/0x620
[ 1407.282271][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1407.282271][   T73]      net_rx_action+0x495/0xbe0
[ 1407.282271][   T73]      __do_softirq+0x1b5/0x7f6
[ 1407.282271][   T73] 
[ 1407.283955][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1407.283955][   T73]      netdev_get_by_index+0x5e/0x80
[ 1407.283955][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1407.283955][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1407.283955][   T73]      ip6_route_add+0x1c/0x140
[ 1407.283955][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1407.283955][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1407.283955][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1407.283955][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1407.283955][   T73]      netlink_rcv_skb+0x130/0x360
[ 1407.283955][   T73]      netlink_unicast+0x449/0x710
[ 1407.283955][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1407.283955][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1407.283955][   T73]      ___sys_sendmsg+0xee/0x170
[ 1407.283955][   T73]      __sys_sendmsg+0xcd/0x170
[ 1407.283955][   T73]      do_syscall_64+0xc6/0x1e0
[ 1407.283955][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1407.283955][   T73] 
[ 1407.286016][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1407.286016][   T73]      netdev_get_by_index+0x5e/0x80
[ 1407.286016][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1407.286016][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1407.286016][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1407.286016][   T73]      ipv6_add_addr+0x411/0x2000
[ 1407.286016][   T73]      inet6_addr_add+0x30e/0xa40
[ 1407.286016][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1407.286016][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1407.286016][   T73]      netlink_rcv_skb+0x130/0x360
[ 1407.286016][   T73]      netlink_unicast+0x449/0x710
[ 1407.286016][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1407.286016][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1407.286016][   T73]      ___sys_sendmsg+0xee/0x170
[ 1407.286016][   T73]      __sys_sendmsg+0xcd/0x170
[ 1407.286016][   T73]      do_syscall_64+0xc6/0x1e0
[ 1407.286016][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1407.286016][   T73] 
[ 1407.288552][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1407.288552][   T73]      netdev_get_by_index+0x5e/0x80
[ 1407.288552][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1407.288552][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1407.288552][   T73]      ip6_route_add+0x1c/0x140
[ 1407.288552][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1407.288552][   T73]      addrconf_add_dev+0xe2/0x170
[ 1407.288552][   T73]      inet6_addr_add+0x12f/0xa40
[ 1407.288552][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1407.288552][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1407.288552][   T73]      netlink_rcv_skb+0x130/0x360
[ 1407.288552][   T73]      netlink_unicast+0x449/0x710
[ 1407.288552][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1407.288552][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1407.288552][   T73]      ___sys_sendmsg+0xee/0x170
[ 1407.288552][   T73]      __sys_sendmsg+0xcd/0x170
[ 1407.288552][   T73]      do_syscall_64+0xc6/0x1e0
[ 1407.288552][   T73] 
[ 1407.290564][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1407.290564][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1407.290564][   T73]      ipv6_find_idev+0x102/0x170
[ 1407.290564][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1407.290564][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1407.290564][   T73]      netlink_rcv_skb+0x130/0x360
[ 1407.290564][   T73]      netlink_unicast+0x449/0x710
[ 1407.290564][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1407.290564][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1407.290564][   T73]      ___sys_sendmsg+0xee/0x170
[ 1407.290564][   T73]      __sys_sendmsg+0xcd/0x170
[ 1407.290564][   T73]      do_syscall_64+0xc6/0x1e0
[ 1407.290564][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1407.290564][   T73] 
[ 1407.292159][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1407.292159][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1407.292159][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1407.292159][   T73]      ipv6_find_idev+0x102/0x170
[ 1407.292159][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1407.292159][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1407.292159][   T73]      netlink_rcv_skb+0x130/0x360
[ 1407.292159][   T73]      netlink_unicast+0x449/0x710
[ 1407.292159][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1407.292159][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1407.292159][   T73]      ___sys_sendmsg+0xee/0x170
[ 1407.292159][   T73]      __sys_sendmsg+0xcd/0x170
[ 1407.292159][   T73]      do_syscall_64+0xc6/0x1e0
[ 1407.292159][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1407.292159][   T73] 
[ 1407.293924][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1407.294229][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1407.294229][   T73]      netdev_get_by_index+0x5e/0x80
[ 1407.294229][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1407.294229][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1407.294229][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1407.294229][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1407.294229][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1407.294229][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1407.294229][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1407.294229][   T73]      addrconf_dad_begin+0x310/0x670
[ 1407.294229][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1407.294229][   T73]      process_one_work+0x84d/0x18a0
[ 1407.294229][   T73]      worker_thread+0x587/0xd30
[ 1407.294229][   T73]      kthread+0x28a/0x350
[ 1407.294229][   T73]      ret_from_fork+0x31/0x70
[ 1407.294229][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1407.294229][   T73] 
[ 1407.296202][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1407.296202][   T73]      netdev_get_by_index+0x5e/0x80
[ 1407.296202][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1407.296202][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1407.296202][   T73]      ip6_route_add+0x1c/0x140
[ 1407.296202][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1407.296202][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1407.296202][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1407.296202][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1407.296202][   T73]      netlink_rcv_skb+0x130/0x360
[ 1407.296202][   T73]      netlink_unicast+0x449/0x710
[ 1407.296202][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1407.296202][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1407.296202][   T73]      ___sys_sendmsg+0xee/0x170
[ 1407.296202][   T73]      __sys_sendmsg+0xcd/0x170
[ 1407.296202][   T73]      do_syscall_64+0xc6/0x1e0
[ 1407.296202][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1407.296202][   T73] 
[ 1407.298267][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1407.298267][   T73]      netdev_get_by_index+0x5e/0x80
[ 1407.298267][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1407.298267][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1407.298267][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1407.298267][   T73]      ipv6_add_addr+0x411/0x2000
[ 1407.298267][   T73]      inet6_addr_add+0x30e/0xa40
[ 1407.298267][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1407.298267][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1407.298267][   T73]      netlink_rcv_skb+0x130/0x360
[ 1407.298267][   T73]      netlink_unicast+0x449/0x710
[ 1407.298267][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1407.298267][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1407.298267][   T73]      ___sys_sendmsg+0xee/0x170
[ 1407.298267][   T73]      __sys_sendmsg+0xcd/0x170
[ 1407.298267][   T73]      do_syscall_64+0xc6/0x1e0
[ 1407.298267][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1407.298267][   T73] 
[ 1407.300321][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1407.300321][   T73]      netdev_get_by_index+0x5e/0x80
[ 1407.300321][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1407.300321][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1407.300321][   T73]      ip6_route_add+0x1c/0x140
[ 1407.300321][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1407.300321][   T73]      addrconf_add_dev+0xe2/0x170
[ 1407.300321][   T73]      inet6_addr_add+0x12f/0xa40
[ 1407.300321][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1407.300321][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1407.300321][   T73]      netlink_rcv_skb+0x130/0x360
[ 1407.300321][   T73]      netlink_unicast+0x449/0x710
[ 1407.300321][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1407.300321][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1407.300321][   T73]      ___sys_sendmsg+0xee/0x170
[ 1407.300321][   T73]      __sys_sendmsg+0xcd/0x170
[ 1407.300321][   T73]      do_syscall_64+0xc6/0x1e0
[ 1407.300321][   T73] 
[ 1407.302333][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1407.302333][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1407.302333][   T73]      ipv6_find_idev+0x102/0x170
[ 1407.302333][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1407.302333][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1407.302333][   T73]      netlink_rcv_skb+0x130/0x360
[ 1407.302333][   T73]      netlink_unicast+0x449/0x710
[ 1407.302333][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1407.302333][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1407.302333][   T73]      ___sys_sendmsg+0xee/0x170
[ 1407.302333][   T73]      __sys_sendmsg+0xcd/0x170
[ 1407.302333][   T73]      do_syscall_64+0xc6/0x1e0
[ 1407.302333][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1407.302333][   T73] 
[ 1407.303892][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1407.303892][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1407.303892][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1407.303892][   T73]      ipv6_find_idev+0x102/0x170
[ 1407.303892][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1407.303892][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1407.303892][   T73]      netlink_rcv_skb+0x130/0x360
[ 1407.303892][   T73]      netlink_unicast+0x449/0x710
[ 1407.303892][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1407.303892][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1407.303892][   T73]      ___sys_sendmsg+0xee/0x170
[ 1407.303892][   T73]      __sys_sendmsg+0xcd/0x170
[ 1407.303892][   T73]      do_syscall_64+0xc6/0x1e0
[ 1407.303892][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1407.303892][   T73] 
[ 1407.305626][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1407.305917][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1407.305917][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1407.305917][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1407.305917][   T73]      fib6_nh_init+0xa22/0x1580
[ 1407.305917][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1407.305917][   T73]      ip6_route_add+0x1c/0x140
[ 1407.305917][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1407.305917][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1407.305917][   T73]      netlink_rcv_skb+0x130/0x360
[ 1407.305917][   T73]      netlink_unicast+0x449/0x710
[ 1407.305917][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1407.305917][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1407.305917][   T73]      ___sys_sendmsg+0xee/0x170
[ 1407.305917][   T73]      __sys_sendmsg+0xcd/0x170
[ 1407.305917][   T73]      do_syscall_64+0xc6/0x1e0
[ 1407.305917][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1407.305917][   T73] 
[ 1407.308065][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1407.308065][   T73]      dst_init+0x84/0x4a0
[ 1407.308065][   T73]      dst_alloc+0x97/0x150
[ 1407.308065][   T73]      ip6_dst_alloc+0x23/0x90
[ 1407.308065][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1407.308065][   T73]      ip6_pol_route+0x56f/0x840
[ 1407.308065][   T73]      fib6_rule_lookup+0x456/0x630
[ 1407.308065][   T73]      ip6_route_input+0x59c/0xa50
[ 1407.308065][   T73]      ipv6_rcv+0x397/0x810
[ 1407.308065][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1407.308065][   T73]      process_backlog+0x101/0x620
[ 1407.308065][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1407.308065][   T73]      net_rx_action+0x495/0xbe0
[ 1407.308065][   T73]      __do_softirq+0x1b5/0x7f6
[ 1407.308065][   T73] 
[ 1407.309931][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1407.309931][   T73]      netdev_get_by_index+0x5e/0x80
[ 1407.309931][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1407.309931][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1407.309931][   T73]      ip6_route_add+0x1c/0x140
[ 1407.309931][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1407.309931][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1407.309931][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1407.309931][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1407.309931][   T73]      netlink_rcv_skb+0x130/0x360
[ 1407.309931][   T73]      netlink_unicast+0x449/0x710
[ 1407.309931][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1407.309931][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1407.309931][   T73]      ___sys_sendmsg+0xee/0x170
[ 1407.309931][   T73]      __sys_sendmsg+0xcd/0x170
[ 1407.309931][   T73]      do_syscall_64+0xc6/0x1e0
[ 1407.309931][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1407.309931][   T73] 
[ 1407.312246][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1407.312246][   T73]      netdev_get_by_index+0x5e/0x80
[ 1407.312246][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1407.312246][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1407.312246][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1407.312246][   T73]      ipv6_add_addr+0x411/0x2000
[ 1407.312246][   T73]      inet6_addr_add+0x30e/0xa40
[ 1407.312246][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1407.312246][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1407.312246][   T73]      netlink_rcv_skb+0x130/0x360
[ 1407.312246][   T73]      netlink_unicast+0x449/0x710
[ 1407.312246][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1407.312246][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1407.312246][   T73]      ___sys_sendmsg+0xee/0x170
[ 1407.312246][   T73]      __sys_sendmsg+0xcd/0x170
[ 1407.312246][   T73]      do_syscall_64+0xc6/0x1e0
[ 1407.312246][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1407.312246][   T73] 
[ 1407.314576][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1407.314576][   T73]      netdev_get_by_index+0x5e/0x80
[ 1407.314576][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1407.314576][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1407.314576][   T73]      ip6_route_add+0x1c/0x140
[ 1407.314576][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1407.314576][   T73]      addrconf_add_dev+0xe2/0x170
[ 1407.314576][   T73]      inet6_addr_add+0x12f/0xa40
[ 1407.314576][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1407.314576][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1407.314576][   T73]      netlink_rcv_skb+0x130/0x360
[ 1407.314576][   T73]      netlink_unicast+0x449/0x710
[ 1407.314576][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1407.314576][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1407.314576][   T73]      ___sys_sendmsg+0xee/0x170
[ 1407.314576][   T73]      __sys_sendmsg+0xcd/0x170
[ 1407.314576][   T73]      do_syscall_64+0xc6/0x1e0
[ 1407.314576][   T73] 
[ 1407.316762][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1407.316762][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1407.316762][   T73]      ipv6_find_idev+0x102/0x170
[ 1407.316762][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1407.316762][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1407.316762][   T73]      netlink_rcv_skb+0x130/0x360
[ 1407.316762][   T73]      netlink_unicast+0x449/0x710
[ 1407.316762][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1407.316762][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1407.316762][   T73]      ___sys_sendmsg+0xee/0x170
[ 1407.316762][   T73]      __sys_sendmsg+0xcd/0x170
[ 1407.316762][   T73]      do_syscall_64+0xc6/0x1e0
[ 1407.316762][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1407.316762][   T73] 
[ 1407.318510][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1407.318510][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1407.318510][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1407.318510][   T73]      ipv6_find_idev+0x102/0x170
[ 1407.318510][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1407.318510][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1407.318510][   T73]      netlink_rcv_skb+0x130/0x360
[ 1407.318510][   T73]      netlink_unicast+0x449/0x710
[ 1407.318510][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1407.318510][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1407.318510][   T73]      ___sys_sendmsg+0xee/0x170
[ 1407.318510][   T73]      __sys_sendmsg+0xcd/0x170
[ 1407.318510][   T73]      do_syscall_64+0xc6/0x1e0
[ 1407.318510][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1407.318510][   T73] 
[ 1407.320501][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1407.321231][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1407.321231][   T73]      netdev_get_by_index+0x5e/0x80
[ 1407.321231][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1407.321231][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1407.321231][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1407.321231][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1407.321231][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1407.321231][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1407.321231][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1407.321231][   T73]      addrconf_dad_begin+0x310/0x670
[ 1407.321231][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1407.321231][   T73]      process_one_work+0x84d/0x18a0
[ 1407.321231][   T73]      worker_thread+0x587/0xd30
[ 1407.321231][   T73]      kthread+0x28a/0x350
[ 1407.321231][   T73]      ret_from_fork+0x31/0x70
[ 1407.321231][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1407.321231][   T73] 
[ 1407.323190][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1407.323190][   T73]      netdev_get_by_index+0x5e/0x80
[ 1407.323190][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1407.323190][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1407.323190][   T73]      ip6_route_add+0x1c/0x140
[ 1407.323190][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1407.323190][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1407.323190][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1407.323190][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1407.323190][   T73]      netlink_rcv_skb+0x130/0x360
[ 1407.323190][   T73]      netlink_unicast+0x449/0x710
[ 1407.323190][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1407.323190][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1407.323190][   T73]      ___sys_sendmsg+0xee/0x170
[ 1407.323190][   T73]      __sys_sendmsg+0xcd/0x170
[ 1407.323190][   T73]      do_syscall_64+0xc6/0x1e0
[ 1407.323190][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1407.323190][   T73] 
[ 1407.326253][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1407.326253][   T73]      netdev_get_by_index+0x5e/0x80
[ 1407.326253][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1407.326253][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1407.326253][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1407.326253][   T73]      ipv6_add_addr+0x411/0x2000
[ 1407.326253][   T73]      inet6_addr_add+0x30e/0xa40
[ 1407.326253][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1407.326253][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1407.326253][   T73]      netlink_rcv_skb+0x130/0x360
[ 1407.326253][   T73]      netlink_unicast+0x449/0x710
[ 1407.326253][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1407.326253][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1407.326253][   T73]      ___sys_sendmsg+0xee/0x170
[ 1407.326253][   T73]      __sys_sendmsg+0xcd/0x170
[ 1407.326253][   T73]      do_syscall_64+0xc6/0x1e0
[ 1407.326253][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1407.326253][   T73] 
[ 1407.329384][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1407.329384][   T73]      netdev_get_by_index+0x5e/0x80
[ 1407.329384][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1407.329384][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1407.329384][   T73]      ip6_route_add+0x1c/0x140
[ 1407.329384][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1407.329384][   T73]      addrconf_add_dev+0xe2/0x170
[ 1407.329384][   T73]      inet6_addr_add+0x12f/0xa40
[ 1407.329384][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1407.329384][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1407.329384][   T73]      netlink_rcv_skb+0x130/0x360
[ 1407.329384][   T73]      netlink_unicast+0x449/0x710
[ 1407.329384][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1407.329384][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1407.329384][   T73]      ___sys_sendmsg+0xee/0x170
[ 1407.329384][   T73]      __sys_sendmsg+0xcd/0x170
[ 1407.329384][   T73]      do_syscall_64+0xc6/0x1e0
[ 1407.329384][   T73] 
[ 1407.331625][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1407.331625][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1407.331625][   T73]      ipv6_find_idev+0x102/0x170
[ 1407.331625][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1407.331625][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1407.331625][   T73]      netlink_rcv_skb+0x130/0x360
[ 1407.331625][   T73]      netlink_unicast+0x449/0x710
[ 1407.331625][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1407.331625][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1407.331625][   T73]      ___sys_sendmsg+0xee/0x170
[ 1407.331625][   T73]      __sys_sendmsg+0xcd/0x170
[ 1407.331625][   T73]      do_syscall_64+0xc6/0x1e0
[ 1407.331625][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1407.331625][   T73] 
[ 1407.334117][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1407.334117][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1407.334117][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1407.334117][   T73]      ipv6_find_idev+0x102/0x170
[ 1407.334117][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1407.334117][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1407.334117][   T73]      netlink_rcv_skb+0x130/0x360
[ 1407.334117][   T73]      netlink_unicast+0x449/0x710
[ 1407.334117][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1407.334117][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1407.334117][   T73]      ___sys_sendmsg+0xee/0x170
[ 1407.334117][   T73]      __sys_sendmsg+0xcd/0x170
[ 1407.334117][   T73]      do_syscall_64+0xc6/0x1e0
[ 1407.334117][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1407.334117][   T73] 
[ 1417.575790][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1417.576394][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1417.576394][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1417.576394][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1417.576394][   T73]      fib6_nh_init+0xa22/0x1580
[ 1417.576394][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1417.576394][   T73]      ip6_route_add+0x1c/0x140
[ 1417.576394][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1417.576394][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1417.576394][   T73]      netlink_rcv_skb+0x130/0x360
[ 1417.576394][   T73]      netlink_unicast+0x449/0x710
[ 1417.576394][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1417.576394][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1417.576394][   T73]      ___sys_sendmsg+0xee/0x170
[ 1417.576394][   T73]      __sys_sendmsg+0xcd/0x170
[ 1417.576394][   T73]      do_syscall_64+0xc6/0x1e0
[ 1417.576394][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1417.576394][   T73] 
[ 1417.578378][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1417.578378][   T73]      dst_init+0x84/0x4a0
[ 1417.578378][   T73]      dst_alloc+0x97/0x150
[ 1417.578378][   T73]      ip6_dst_alloc+0x23/0x90
[ 1417.578378][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1417.578378][   T73]      ip6_pol_route+0x56f/0x840
[ 1417.578378][   T73]      fib6_rule_lookup+0x456/0x630
[ 1417.578378][   T73]      ip6_route_input+0x59c/0xa50
[ 1417.578378][   T73]      ipv6_rcv+0x397/0x810
[ 1417.578378][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1417.578378][   T73]      process_backlog+0x101/0x620
[ 1417.578378][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1417.578378][   T73]      net_rx_action+0x495/0xbe0
[ 1417.578378][   T73]      __do_softirq+0x1b5/0x7f6
[ 1417.578378][   T73] 
[ 1417.580058][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1417.580058][   T73]      netdev_get_by_index+0x5e/0x80
[ 1417.580058][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1417.580058][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1417.580058][   T73]      ip6_route_add+0x1c/0x140
[ 1417.580058][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1417.580058][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1417.580058][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1417.580058][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1417.580058][   T73]      netlink_rcv_skb+0x130/0x360
[ 1417.580058][   T73]      netlink_unicast+0x449/0x710
[ 1417.580058][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1417.580058][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1417.580058][   T73]      ___sys_sendmsg+0xee/0x170
[ 1417.580058][   T73]      __sys_sendmsg+0xcd/0x170
[ 1417.580058][   T73]      do_syscall_64+0xc6/0x1e0
[ 1417.580058][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1417.580058][   T73] 
[ 1417.582095][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1417.582095][   T73]      netdev_get_by_index+0x5e/0x80
[ 1417.582095][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1417.582095][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1417.582095][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1417.582095][   T73]      ipv6_add_addr+0x411/0x2000
[ 1417.582095][   T73]      inet6_addr_add+0x30e/0xa40
[ 1417.582095][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1417.582095][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1417.582095][   T73]      netlink_rcv_skb+0x130/0x360
[ 1417.582095][   T73]      netlink_unicast+0x449/0x710
[ 1417.582095][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1417.582095][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1417.582095][   T73]      ___sys_sendmsg+0xee/0x170
[ 1417.582095][   T73]      __sys_sendmsg+0xcd/0x170
[ 1417.582095][   T73]      do_syscall_64+0xc6/0x1e0
[ 1417.582095][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1417.582095][   T73] 
[ 1417.584322][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1417.584322][   T73]      netdev_get_by_index+0x5e/0x80
[ 1417.584322][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1417.584322][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1417.584322][   T73]      ip6_route_add+0x1c/0x140
[ 1417.584322][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1417.584322][   T73]      addrconf_add_dev+0xe2/0x170
[ 1417.584322][   T73]      inet6_addr_add+0x12f/0xa40
[ 1417.584322][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1417.584322][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1417.584322][   T73]      netlink_rcv_skb+0x130/0x360
[ 1417.584322][   T73]      netlink_unicast+0x449/0x710
[ 1417.584322][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1417.584322][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1417.584322][   T73]      ___sys_sendmsg+0xee/0x170
[ 1417.584322][   T73]      __sys_sendmsg+0xcd/0x170
[ 1417.584322][   T73]      do_syscall_64+0xc6/0x1e0
[ 1417.584322][   T73] 
[ 1417.586657][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1417.586657][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1417.586657][   T73]      ipv6_find_idev+0x102/0x170
[ 1417.586657][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1417.586657][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1417.586657][   T73]      netlink_rcv_skb+0x130/0x360
[ 1417.586657][   T73]      netlink_unicast+0x449/0x710
[ 1417.586657][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1417.586657][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1417.586657][   T73]      ___sys_sendmsg+0xee/0x170
[ 1417.586657][   T73]      __sys_sendmsg+0xcd/0x170
[ 1417.586657][   T73]      do_syscall_64+0xc6/0x1e0
[ 1417.586657][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1417.586657][   T73] 
[ 1417.589101][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1417.589101][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1417.589101][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1417.589101][   T73]      ipv6_find_idev+0x102/0x170
[ 1417.589101][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1417.589101][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1417.589101][   T73]      netlink_rcv_skb+0x130/0x360
[ 1417.589101][   T73]      netlink_unicast+0x449/0x710
[ 1417.589101][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1417.589101][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1417.589101][   T73]      ___sys_sendmsg+0xee/0x170
[ 1417.589101][   T73]      __sys_sendmsg+0xcd/0x170
[ 1417.589101][   T73]      do_syscall_64+0xc6/0x1e0
[ 1417.589101][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1417.589101][   T73] 
[ 1417.591780][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1417.592092][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1417.592092][   T73]      netdev_get_by_index+0x5e/0x80
[ 1417.592092][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1417.592092][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1417.592092][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1417.592092][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1417.592092][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1417.592092][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1417.592092][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1417.592092][   T73]      addrconf_dad_begin+0x310/0x670
[ 1417.592092][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1417.592092][   T73]      process_one_work+0x84d/0x18a0
[ 1417.592092][   T73]      worker_thread+0x587/0xd30
[ 1417.592092][   T73]      kthread+0x28a/0x350
[ 1417.592092][   T73]      ret_from_fork+0x31/0x70
[ 1417.592092][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1417.592092][   T73] 
[ 1417.594063][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1417.594063][   T73]      netdev_get_by_index+0x5e/0x80
[ 1417.594063][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1417.594063][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1417.594063][   T73]      ip6_route_add+0x1c/0x140
[ 1417.594063][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1417.594063][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1417.594063][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1417.594063][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1417.594063][   T73]      netlink_rcv_skb+0x130/0x360
[ 1417.594063][   T73]      netlink_unicast+0x449/0x710
[ 1417.594063][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1417.594063][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1417.594063][   T73]      ___sys_sendmsg+0xee/0x170
[ 1417.594063][   T73]      __sys_sendmsg+0xcd/0x170
[ 1417.594063][   T73]      do_syscall_64+0xc6/0x1e0
[ 1417.594063][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1417.594063][   T73] 
[ 1417.596157][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1417.596157][   T73]      netdev_get_by_index+0x5e/0x80
[ 1417.596157][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1417.596157][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1417.596157][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1417.596157][   T73]      ipv6_add_addr+0x411/0x2000
[ 1417.596157][   T73]      inet6_addr_add+0x30e/0xa40
[ 1417.596157][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1417.596157][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1417.596157][   T73]      netlink_rcv_skb+0x130/0x360
[ 1417.596157][   T73]      netlink_unicast+0x449/0x710
[ 1417.596157][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1417.596157][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1417.596157][   T73]      ___sys_sendmsg+0xee/0x170
[ 1417.596157][   T73]      __sys_sendmsg+0xcd/0x170
[ 1417.596157][   T73]      do_syscall_64+0xc6/0x1e0
[ 1417.596157][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1417.596157][   T73] 
[ 1417.598217][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1417.598217][   T73]      netdev_get_by_index+0x5e/0x80
[ 1417.598217][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1417.598217][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1417.598217][   T73]      ip6_route_add+0x1c/0x140
[ 1417.598217][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1417.598217][   T73]      addrconf_add_dev+0xe2/0x170
[ 1417.598217][   T73]      inet6_addr_add+0x12f/0xa40
[ 1417.598217][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1417.598217][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1417.598217][   T73]      netlink_rcv_skb+0x130/0x360
[ 1417.598217][   T73]      netlink_unicast+0x449/0x710
[ 1417.598217][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1417.598217][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1417.598217][   T73]      ___sys_sendmsg+0xee/0x170
[ 1417.598217][   T73]      __sys_sendmsg+0xcd/0x170
[ 1417.598217][   T73]      do_syscall_64+0xc6/0x1e0
[ 1417.598217][   T73] 
[ 1417.600278][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1417.600278][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1417.600278][   T73]      ipv6_find_idev+0x102/0x170
[ 1417.600278][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1417.600278][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1417.600278][   T73]      netlink_rcv_skb+0x130/0x360
[ 1417.600278][   T73]      netlink_unicast+0x449/0x710
[ 1417.600278][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1417.600278][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1417.600278][   T73]      ___sys_sendmsg+0xee/0x170
[ 1417.600278][   T73]      __sys_sendmsg+0xcd/0x170
[ 1417.600278][   T73]      do_syscall_64+0xc6/0x1e0
[ 1417.600278][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1417.600278][   T73] 
[ 1417.601863][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1417.601863][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1417.601863][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1417.601863][   T73]      ipv6_find_idev+0x102/0x170
[ 1417.601863][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1417.601863][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1417.601863][   T73]      netlink_rcv_skb+0x130/0x360
[ 1417.601863][   T73]      netlink_unicast+0x449/0x710
[ 1417.601863][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1417.601863][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1417.601863][   T73]      ___sys_sendmsg+0xee/0x170
[ 1417.601863][   T73]      __sys_sendmsg+0xcd/0x170
[ 1417.601863][   T73]      do_syscall_64+0xc6/0x1e0
[ 1417.601863][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1417.601863][   T73] 
[ 1417.603630][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1417.603937][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1417.603937][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1417.603937][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1417.603937][   T73]      fib6_nh_init+0xa22/0x1580
[ 1417.603937][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1417.603937][   T73]      ip6_route_add+0x1c/0x140
[ 1417.603937][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1417.603937][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1417.603937][   T73]      netlink_rcv_skb+0x130/0x360
[ 1417.603937][   T73]      netlink_unicast+0x449/0x710
[ 1417.603937][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1417.603937][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1417.603937][   T73]      ___sys_sendmsg+0xee/0x170
[ 1417.603937][   T73]      __sys_sendmsg+0xcd/0x170
[ 1417.603937][   T73]      do_syscall_64+0xc6/0x1e0
[ 1417.603937][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1417.603937][   T73] 
[ 1417.606071][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1417.606071][   T73]      dst_init+0x84/0x4a0
[ 1417.606071][   T73]      dst_alloc+0x97/0x150
[ 1417.606071][   T73]      ip6_dst_alloc+0x23/0x90
[ 1417.606071][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1417.606071][   T73]      ip6_pol_route+0x56f/0x840
[ 1417.606071][   T73]      fib6_rule_lookup+0x456/0x630
[ 1417.606071][   T73]      ip6_route_input+0x59c/0xa50
[ 1417.606071][   T73]      ipv6_rcv+0x397/0x810
[ 1417.606071][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1417.606071][   T73]      process_backlog+0x101/0x620
[ 1417.606071][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1417.606071][   T73]      net_rx_action+0x495/0xbe0
[ 1417.606071][   T73]      __do_softirq+0x1b5/0x7f6
[ 1417.606071][   T73] 
[ 1417.608496][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1417.608496][   T73]      netdev_get_by_index+0x5e/0x80
[ 1417.608496][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1417.608496][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1417.608496][   T73]      ip6_route_add+0x1c/0x140
[ 1417.608496][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1417.608496][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1417.608496][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1417.608496][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1417.608496][   T73]      netlink_rcv_skb+0x130/0x360
[ 1417.608496][   T73]      netlink_unicast+0x449/0x710
[ 1417.608496][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1417.608496][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1417.608496][   T73]      ___sys_sendmsg+0xee/0x170
[ 1417.608496][   T73]      __sys_sendmsg+0xcd/0x170
[ 1417.608496][   T73]      do_syscall_64+0xc6/0x1e0
[ 1417.608496][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1417.608496][   T73] 
[ 1417.610799][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1417.610799][   T73]      netdev_get_by_index+0x5e/0x80
[ 1417.610799][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1417.610799][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1417.610799][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1417.610799][   T73]      ipv6_add_addr+0x411/0x2000
[ 1417.610799][   T73]      inet6_addr_add+0x30e/0xa40
[ 1417.610799][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1417.610799][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1417.610799][   T73]      netlink_rcv_skb+0x130/0x360
[ 1417.610799][   T73]      netlink_unicast+0x449/0x710
[ 1417.610799][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1417.610799][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1417.610799][   T73]      ___sys_sendmsg+0xee/0x170
[ 1417.610799][   T73]      __sys_sendmsg+0xcd/0x170
[ 1417.610799][   T73]      do_syscall_64+0xc6/0x1e0
[ 1417.610799][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1417.610799][   T73] 
[ 1417.613100][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1417.613100][   T73]      netdev_get_by_index+0x5e/0x80
[ 1417.613100][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1417.613100][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1417.613100][   T73]      ip6_route_add+0x1c/0x140
[ 1417.613100][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1417.613100][   T73]      addrconf_add_dev+0xe2/0x170
[ 1417.613100][   T73]      inet6_addr_add+0x12f/0xa40
[ 1417.613100][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1417.613100][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1417.613100][   T73]      netlink_rcv_skb+0x130/0x360
[ 1417.613100][   T73]      netlink_unicast+0x449/0x710
[ 1417.613100][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1417.613100][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1417.613100][   T73]      ___sys_sendmsg+0xee/0x170
[ 1417.613100][   T73]      __sys_sendmsg+0xcd/0x170
[ 1417.613100][   T73]      do_syscall_64+0xc6/0x1e0
[ 1417.613100][   T73] 
[ 1417.615310][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1417.615310][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1417.615310][   T73]      ipv6_find_idev+0x102/0x170
[ 1417.615310][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1417.615310][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1417.615310][   T73]      netlink_rcv_skb+0x130/0x360
[ 1417.615310][   T73]      netlink_unicast+0x449/0x710
[ 1417.615310][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1417.615310][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1417.615310][   T73]      ___sys_sendmsg+0xee/0x170
[ 1417.615310][   T73]      __sys_sendmsg+0xcd/0x170
[ 1417.615310][   T73]      do_syscall_64+0xc6/0x1e0
[ 1417.615310][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1417.615310][   T73] 
[ 1417.617116][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1417.617116][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1417.617116][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1417.617116][   T73]      ipv6_find_idev+0x102/0x170
[ 1417.617116][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1417.617116][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1417.617116][   T73]      netlink_rcv_skb+0x130/0x360
[ 1417.617116][   T73]      netlink_unicast+0x449/0x710
[ 1417.617116][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1417.617116][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1417.617116][   T73]      ___sys_sendmsg+0xee/0x170
[ 1417.617116][   T73]      __sys_sendmsg+0xcd/0x170
[ 1417.617116][   T73]      do_syscall_64+0xc6/0x1e0
[ 1417.617116][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1417.617116][   T73] 
[ 1417.619107][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1417.619417][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1417.619417][   T73]      netdev_get_by_index+0x5e/0x80
[ 1417.619417][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1417.619417][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1417.619417][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1417.619417][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1417.619417][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1417.619417][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1417.619417][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1417.619417][   T73]      addrconf_dad_begin+0x310/0x670
[ 1417.619417][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1417.619417][   T73]      process_one_work+0x84d/0x18a0
[ 1417.619417][   T73]      worker_thread+0x587/0xd30
[ 1417.619417][   T73]      kthread+0x28a/0x350
[ 1417.619417][   T73]      ret_from_fork+0x31/0x70
[ 1417.619417][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1417.619417][   T73] 
[ 1417.621625][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1417.621625][   T73]      netdev_get_by_index+0x5e/0x80
[ 1417.621625][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1417.621625][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1417.621625][   T73]      ip6_route_add+0x1c/0x140
[ 1417.621625][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1417.621625][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1417.621625][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1417.621625][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1417.621625][   T73]      netlink_rcv_skb+0x130/0x360
[ 1417.621625][   T73]      netlink_unicast+0x449/0x710
[ 1417.621625][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1417.621625][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1417.621625][   T73]      ___sys_sendmsg+0xee/0x170
[ 1417.621625][   T73]      __sys_sendmsg+0xcd/0x170
[ 1417.621625][   T73]      do_syscall_64+0xc6/0x1e0
[ 1417.621625][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1417.621625][   T73] 
[ 1417.623894][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1417.623894][   T73]      netdev_get_by_index+0x5e/0x80
[ 1417.623894][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1417.623894][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1417.623894][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1417.623894][   T73]      ipv6_add_addr+0x411/0x2000
[ 1417.623894][   T73]      inet6_addr_add+0x30e/0xa40
[ 1417.623894][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1417.623894][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1417.623894][   T73]      netlink_rcv_skb+0x130/0x360
[ 1417.623894][   T73]      netlink_unicast+0x449/0x710
[ 1417.623894][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1417.623894][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1417.623894][   T73]      ___sys_sendmsg+0xee/0x170
[ 1417.623894][   T73]      __sys_sendmsg+0xcd/0x170
[ 1417.623894][   T73]      do_syscall_64+0xc6/0x1e0
[ 1417.623894][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1417.623894][   T73] 
[ 1417.626129][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1417.626129][   T73]      netdev_get_by_index+0x5e/0x80
[ 1417.626129][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1417.626129][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1417.626129][   T73]      ip6_route_add+0x1c/0x140
[ 1417.626129][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1417.626129][   T73]      addrconf_add_dev+0xe2/0x170
[ 1417.626129][   T73]      inet6_addr_add+0x12f/0xa40
[ 1417.626129][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1417.626129][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1417.626129][   T73]      netlink_rcv_skb+0x130/0x360
[ 1417.626129][   T73]      netlink_unicast+0x449/0x710
[ 1417.626129][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1417.626129][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1417.626129][   T73]      ___sys_sendmsg+0xee/0x170
[ 1417.626129][   T73]      __sys_sendmsg+0xcd/0x170
[ 1417.626129][   T73]      do_syscall_64+0xc6/0x1e0
[ 1417.626129][   T73] 
[ 1417.628454][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1417.628454][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1417.628454][   T73]      ipv6_find_idev+0x102/0x170
[ 1417.628454][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1417.628454][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1417.628454][   T73]      netlink_rcv_skb+0x130/0x360
[ 1417.628454][   T73]      netlink_unicast+0x449/0x710
[ 1417.628454][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1417.628454][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1417.628454][   T73]      ___sys_sendmsg+0xee/0x170
[ 1417.628454][   T73]      __sys_sendmsg+0xcd/0x170
[ 1417.628454][   T73]      do_syscall_64+0xc6/0x1e0
[ 1417.628454][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1417.628454][   T73] 
[ 1417.630190][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1417.630190][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1417.630190][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1417.630190][   T73]      ipv6_find_idev+0x102/0x170
[ 1417.630190][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1417.630190][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1417.630190][   T73]      netlink_rcv_skb+0x130/0x360
[ 1417.630190][   T73]      netlink_unicast+0x449/0x710
[ 1417.630190][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1417.630190][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1417.630190][   T73]      ___sys_sendmsg+0xee/0x170
[ 1417.630190][   T73]      __sys_sendmsg+0xcd/0x170
[ 1417.630190][   T73]      do_syscall_64+0xc6/0x1e0
[ 1417.630190][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1417.630190][   T73] 
[ 1427.871865][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1427.872287][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1427.872287][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1427.872287][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1427.872287][   T73]      fib6_nh_init+0xa22/0x1580
[ 1427.872287][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1427.872287][   T73]      ip6_route_add+0x1c/0x140
[ 1427.872287][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1427.872287][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1427.872287][   T73]      netlink_rcv_skb+0x130/0x360
[ 1427.872287][   T73]      netlink_unicast+0x449/0x710
[ 1427.872287][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1427.872287][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1427.872287][   T73]      ___sys_sendmsg+0xee/0x170
[ 1427.872287][   T73]      __sys_sendmsg+0xcd/0x170
[ 1427.872287][   T73]      do_syscall_64+0xc6/0x1e0
[ 1427.872287][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1427.872287][   T73] 
[ 1427.874215][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1427.874215][   T73]      dst_init+0x84/0x4a0
[ 1427.874215][   T73]      dst_alloc+0x97/0x150
[ 1427.874215][   T73]      ip6_dst_alloc+0x23/0x90
[ 1427.874215][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1427.874215][   T73]      ip6_pol_route+0x56f/0x840
[ 1427.874215][   T73]      fib6_rule_lookup+0x456/0x630
[ 1427.874215][   T73]      ip6_route_input+0x59c/0xa50
[ 1427.874215][   T73]      ipv6_rcv+0x397/0x810
[ 1427.874215][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1427.874215][   T73]      process_backlog+0x101/0x620
[ 1427.874215][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1427.874215][   T73]      net_rx_action+0x495/0xbe0
[ 1427.874215][   T73]      __do_softirq+0x1b5/0x7f6
[ 1427.874215][   T73] 
[ 1427.875873][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1427.875873][   T73]      netdev_get_by_index+0x5e/0x80
[ 1427.875873][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1427.875873][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1427.875873][   T73]      ip6_route_add+0x1c/0x140
[ 1427.875873][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1427.875873][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1427.875873][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1427.875873][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1427.875873][   T73]      netlink_rcv_skb+0x130/0x360
[ 1427.875873][   T73]      netlink_unicast+0x449/0x710
[ 1427.875873][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1427.875873][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1427.875873][   T73]      ___sys_sendmsg+0xee/0x170
[ 1427.875873][   T73]      __sys_sendmsg+0xcd/0x170
[ 1427.875873][   T73]      do_syscall_64+0xc6/0x1e0
[ 1427.875873][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1427.875873][   T73] 
[ 1427.877904][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1427.877904][   T73]      netdev_get_by_index+0x5e/0x80
[ 1427.877904][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1427.877904][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1427.877904][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1427.877904][   T73]      ipv6_add_addr+0x411/0x2000
[ 1427.877904][   T73]      inet6_addr_add+0x30e/0xa40
[ 1427.877904][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1427.877904][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1427.877904][   T73]      netlink_rcv_skb+0x130/0x360
[ 1427.877904][   T73]      netlink_unicast+0x449/0x710
[ 1427.877904][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1427.877904][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1427.877904][   T73]      ___sys_sendmsg+0xee/0x170
[ 1427.877904][   T73]      __sys_sendmsg+0xcd/0x170
[ 1427.877904][   T73]      do_syscall_64+0xc6/0x1e0
[ 1427.877904][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1427.877904][   T73] 
[ 1427.879945][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1427.879945][   T73]      netdev_get_by_index+0x5e/0x80
[ 1427.879945][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1427.879945][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1427.879945][   T73]      ip6_route_add+0x1c/0x140
[ 1427.879945][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1427.879945][   T73]      addrconf_add_dev+0xe2/0x170
[ 1427.879945][   T73]      inet6_addr_add+0x12f/0xa40
[ 1427.879945][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1427.879945][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1427.879945][   T73]      netlink_rcv_skb+0x130/0x360
[ 1427.879945][   T73]      netlink_unicast+0x449/0x710
[ 1427.879945][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1427.879945][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1427.879945][   T73]      ___sys_sendmsg+0xee/0x170
[ 1427.879945][   T73]      __sys_sendmsg+0xcd/0x170
[ 1427.879945][   T73]      do_syscall_64+0xc6/0x1e0
[ 1427.879945][   T73] 
[ 1427.881911][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1427.881911][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1427.881911][   T73]      ipv6_find_idev+0x102/0x170
[ 1427.881911][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1427.881911][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1427.881911][   T73]      netlink_rcv_skb+0x130/0x360
[ 1427.881911][   T73]      netlink_unicast+0x449/0x710
[ 1427.881911][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1427.881911][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1427.881911][   T73]      ___sys_sendmsg+0xee/0x170
[ 1427.881911][   T73]      __sys_sendmsg+0xcd/0x170
[ 1427.881911][   T73]      do_syscall_64+0xc6/0x1e0
[ 1427.881911][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1427.881911][   T73] 
[ 1427.883466][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1427.883466][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1427.883466][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1427.883466][   T73]      ipv6_find_idev+0x102/0x170
[ 1427.883466][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1427.883466][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1427.883466][   T73]      netlink_rcv_skb+0x130/0x360
[ 1427.883466][   T73]      netlink_unicast+0x449/0x710
[ 1427.883466][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1427.883466][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1427.883466][   T73]      ___sys_sendmsg+0xee/0x170
[ 1427.883466][   T73]      __sys_sendmsg+0xcd/0x170
[ 1427.883466][   T73]      do_syscall_64+0xc6/0x1e0
[ 1427.883466][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1427.883466][   T73] 
[ 1427.885155][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1427.885440][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1427.885440][   T73]      netdev_get_by_index+0x5e/0x80
[ 1427.885440][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1427.885440][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1427.885440][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1427.885440][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1427.885440][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1427.885440][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1427.885440][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1427.885440][   T73]      addrconf_dad_begin+0x310/0x670
[ 1427.885440][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1427.885440][   T73]      process_one_work+0x84d/0x18a0
[ 1427.885440][   T73]      worker_thread+0x587/0xd30
[ 1427.885440][   T73]      kthread+0x28a/0x350
[ 1427.885440][   T73]      ret_from_fork+0x31/0x70
[ 1427.885440][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1427.885440][   T73] 
[ 1427.887350][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1427.887350][   T73]      netdev_get_by_index+0x5e/0x80
[ 1427.887350][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1427.887350][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1427.887350][   T73]      ip6_route_add+0x1c/0x140
[ 1427.887350][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1427.887350][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1427.887350][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1427.887350][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1427.887350][   T73]      netlink_rcv_skb+0x130/0x360
[ 1427.887350][   T73]      netlink_unicast+0x449/0x710
[ 1427.887350][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1427.887350][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1427.887350][   T73]      ___sys_sendmsg+0xee/0x170
[ 1427.887350][   T73]      __sys_sendmsg+0xcd/0x170
[ 1427.887350][   T73]      do_syscall_64+0xc6/0x1e0
[ 1427.887350][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1427.887350][   T73] 
[ 1427.889497][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1427.889497][   T73]      netdev_get_by_index+0x5e/0x80
[ 1427.889497][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1427.889497][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1427.889497][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1427.889497][   T73]      ipv6_add_addr+0x411/0x2000
[ 1427.889497][   T73]      inet6_addr_add+0x30e/0xa40
[ 1427.889497][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1427.889497][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1427.889497][   T73]      netlink_rcv_skb+0x130/0x360
[ 1427.889497][   T73]      netlink_unicast+0x449/0x710
[ 1427.889497][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1427.889497][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1427.889497][   T73]      ___sys_sendmsg+0xee/0x170
[ 1427.889497][   T73]      __sys_sendmsg+0xcd/0x170
[ 1427.889497][   T73]      do_syscall_64+0xc6/0x1e0
[ 1427.889497][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1427.889497][   T73] 
[ 1427.891498][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1427.891498][   T73]      netdev_get_by_index+0x5e/0x80
[ 1427.891498][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1427.891498][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1427.891498][   T73]      ip6_route_add+0x1c/0x140
[ 1427.891498][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1427.891498][   T73]      addrconf_add_dev+0xe2/0x170
[ 1427.891498][   T73]      inet6_addr_add+0x12f/0xa40
[ 1427.891498][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1427.891498][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1427.891498][   T73]      netlink_rcv_skb+0x130/0x360
[ 1427.891498][   T73]      netlink_unicast+0x449/0x710
[ 1427.891498][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1427.891498][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1427.891498][   T73]      ___sys_sendmsg+0xee/0x170
[ 1427.891498][   T73]      __sys_sendmsg+0xcd/0x170
[ 1427.891498][   T73]      do_syscall_64+0xc6/0x1e0
[ 1427.891498][   T73] 
[ 1427.893450][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1427.893450][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1427.893450][   T73]      ipv6_find_idev+0x102/0x170
[ 1427.893450][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1427.893450][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1427.893450][   T73]      netlink_rcv_skb+0x130/0x360
[ 1427.893450][   T73]      netlink_unicast+0x449/0x710
[ 1427.893450][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1427.893450][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1427.893450][   T73]      ___sys_sendmsg+0xee/0x170
[ 1427.893450][   T73]      __sys_sendmsg+0xcd/0x170
[ 1427.893450][   T73]      do_syscall_64+0xc6/0x1e0
[ 1427.893450][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1427.893450][   T73] 
[ 1427.895018][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1427.895018][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1427.895018][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1427.895018][   T73]      ipv6_find_idev+0x102/0x170
[ 1427.895018][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1427.895018][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1427.895018][   T73]      netlink_rcv_skb+0x130/0x360
[ 1427.895018][   T73]      netlink_unicast+0x449/0x710
[ 1427.895018][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1427.895018][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1427.895018][   T73]      ___sys_sendmsg+0xee/0x170
[ 1427.895018][   T73]      __sys_sendmsg+0xcd/0x170
[ 1427.895018][   T73]      do_syscall_64+0xc6/0x1e0
[ 1427.895018][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1427.895018][   T73] 
[ 1427.896701][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1427.896978][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1427.896978][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1427.896978][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1427.896978][   T73]      fib6_nh_init+0xa22/0x1580
[ 1427.896978][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1427.896978][   T73]      ip6_route_add+0x1c/0x140
[ 1427.896978][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1427.896978][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1427.896978][   T73]      netlink_rcv_skb+0x130/0x360
[ 1427.896978][   T73]      netlink_unicast+0x449/0x710
[ 1427.896978][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1427.896978][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1427.896978][   T73]      ___sys_sendmsg+0xee/0x170
[ 1427.896978][   T73]      __sys_sendmsg+0xcd/0x170
[ 1427.896978][   T73]      do_syscall_64+0xc6/0x1e0
[ 1427.896978][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1427.896978][   T73] 
[ 1427.899063][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1427.899063][   T73]      dst_init+0x84/0x4a0
[ 1427.899063][   T73]      dst_alloc+0x97/0x150
[ 1427.899063][   T73]      ip6_dst_alloc+0x23/0x90
[ 1427.899063][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1427.899063][   T73]      ip6_pol_route+0x56f/0x840
[ 1427.899063][   T73]      fib6_rule_lookup+0x456/0x630
[ 1427.899063][   T73]      ip6_route_input+0x59c/0xa50
[ 1427.899063][   T73]      ipv6_rcv+0x397/0x810
[ 1427.899063][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1427.899063][   T73]      process_backlog+0x101/0x620
[ 1427.899063][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1427.899063][   T73]      net_rx_action+0x495/0xbe0
[ 1427.899063][   T73]      __do_softirq+0x1b5/0x7f6
[ 1427.899063][   T73] 
[ 1427.900884][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1427.900884][   T73]      netdev_get_by_index+0x5e/0x80
[ 1427.900884][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1427.900884][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1427.900884][   T73]      ip6_route_add+0x1c/0x140
[ 1427.900884][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1427.900884][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1427.900884][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1427.900884][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1427.900884][   T73]      netlink_rcv_skb+0x130/0x360
[ 1427.900884][   T73]      netlink_unicast+0x449/0x710
[ 1427.900884][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1427.900884][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1427.900884][   T73]      ___sys_sendmsg+0xee/0x170
[ 1427.900884][   T73]      __sys_sendmsg+0xcd/0x170
[ 1427.900884][   T73]      do_syscall_64+0xc6/0x1e0
[ 1427.900884][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1427.900884][   T73] 
[ 1427.903063][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1427.903063][   T73]      netdev_get_by_index+0x5e/0x80
[ 1427.903063][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1427.903063][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1427.903063][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1427.903063][   T73]      ipv6_add_addr+0x411/0x2000
[ 1427.903063][   T73]      inet6_addr_add+0x30e/0xa40
[ 1427.903063][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1427.903063][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1427.903063][   T73]      netlink_rcv_skb+0x130/0x360
[ 1427.903063][   T73]      netlink_unicast+0x449/0x710
[ 1427.903063][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1427.903063][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1427.903063][   T73]      ___sys_sendmsg+0xee/0x170
[ 1427.903063][   T73]      __sys_sendmsg+0xcd/0x170
[ 1427.903063][   T73]      do_syscall_64+0xc6/0x1e0
[ 1427.903063][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1427.903063][   T73] 
[ 1427.905361][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1427.905361][   T73]      netdev_get_by_index+0x5e/0x80
[ 1427.905361][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1427.905361][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1427.905361][   T73]      ip6_route_add+0x1c/0x140
[ 1427.905361][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1427.905361][   T73]      addrconf_add_dev+0xe2/0x170
[ 1427.905361][   T73]      inet6_addr_add+0x12f/0xa40
[ 1427.905361][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1427.905361][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1427.905361][   T73]      netlink_rcv_skb+0x130/0x360
[ 1427.905361][   T73]      netlink_unicast+0x449/0x710
[ 1427.905361][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1427.905361][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1427.905361][   T73]      ___sys_sendmsg+0xee/0x170
[ 1427.905361][   T73]      __sys_sendmsg+0xcd/0x170
[ 1427.905361][   T73]      do_syscall_64+0xc6/0x1e0
[ 1427.905361][   T73] 
[ 1427.907504][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1427.907504][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1427.907504][   T73]      ipv6_find_idev+0x102/0x170
[ 1427.907504][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1427.907504][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1427.907504][   T73]      netlink_rcv_skb+0x130/0x360
[ 1427.907504][   T73]      netlink_unicast+0x449/0x710
[ 1427.907504][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1427.907504][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1427.907504][   T73]      ___sys_sendmsg+0xee/0x170
[ 1427.907504][   T73]      __sys_sendmsg+0xcd/0x170
[ 1427.907504][   T73]      do_syscall_64+0xc6/0x1e0
[ 1427.907504][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1427.907504][   T73] 
[ 1427.909227][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1427.909227][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1427.909227][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1427.909227][   T73]      ipv6_find_idev+0x102/0x170
[ 1427.909227][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1427.909227][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1427.909227][   T73]      netlink_rcv_skb+0x130/0x360
[ 1427.909227][   T73]      netlink_unicast+0x449/0x710
[ 1427.909227][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1427.909227][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1427.909227][   T73]      ___sys_sendmsg+0xee/0x170
[ 1427.909227][   T73]      __sys_sendmsg+0xcd/0x170
[ 1427.909227][   T73]      do_syscall_64+0xc6/0x1e0
[ 1427.909227][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1427.909227][   T73] 
[ 1427.911090][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1427.911422][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1427.911422][   T73]      netdev_get_by_index+0x5e/0x80
[ 1427.911422][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1427.911422][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1427.911422][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1427.911422][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1427.911422][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1427.911422][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1427.911422][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1427.911422][   T73]      addrconf_dad_begin+0x310/0x670
[ 1427.911422][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1427.911422][   T73]      process_one_work+0x84d/0x18a0
[ 1427.911422][   T73]      worker_thread+0x587/0xd30
[ 1427.911422][   T73]      kthread+0x28a/0x350
[ 1427.911422][   T73]      ret_from_fork+0x31/0x70
[ 1427.911422][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1427.911422][   T73] 
[ 1427.913513][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1427.913513][   T73]      netdev_get_by_index+0x5e/0x80
[ 1427.913513][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1427.913513][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1427.913513][   T73]      ip6_route_add+0x1c/0x140
[ 1427.913513][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1427.913513][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1427.913513][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1427.913513][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1427.913513][   T73]      netlink_rcv_skb+0x130/0x360
[ 1427.913513][   T73]      netlink_unicast+0x449/0x710
[ 1427.913513][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1427.913513][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1427.913513][   T73]      ___sys_sendmsg+0xee/0x170
[ 1427.913513][   T73]      __sys_sendmsg+0xcd/0x170
[ 1427.913513][   T73]      do_syscall_64+0xc6/0x1e0
[ 1427.913513][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1427.913513][   T73] 
[ 1427.915811][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1427.915811][   T73]      netdev_get_by_index+0x5e/0x80
[ 1427.915811][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1427.915811][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1427.915811][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1427.915811][   T73]      ipv6_add_addr+0x411/0x2000
[ 1427.915811][   T73]      inet6_addr_add+0x30e/0xa40
[ 1427.915811][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1427.915811][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1427.915811][   T73]      netlink_rcv_skb+0x130/0x360
[ 1427.915811][   T73]      netlink_unicast+0x449/0x710
[ 1427.915811][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1427.915811][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1427.915811][   T73]      ___sys_sendmsg+0xee/0x170
[ 1427.915811][   T73]      __sys_sendmsg+0xcd/0x170
[ 1427.915811][   T73]      do_syscall_64+0xc6/0x1e0
[ 1427.915811][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1427.915811][   T73] 
[ 1427.918043][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1427.918043][   T73]      netdev_get_by_index+0x5e/0x80
[ 1427.918043][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1427.918043][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1427.918043][   T73]      ip6_route_add+0x1c/0x140
[ 1427.918043][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1427.918043][   T73]      addrconf_add_dev+0xe2/0x170
[ 1427.918043][   T73]      inet6_addr_add+0x12f/0xa40
[ 1427.918043][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1427.918043][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1427.918043][   T73]      netlink_rcv_skb+0x130/0x360
[ 1427.918043][   T73]      netlink_unicast+0x449/0x710
[ 1427.918043][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1427.918043][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1427.918043][   T73]      ___sys_sendmsg+0xee/0x170
[ 1427.918043][   T73]      __sys_sendmsg+0xcd/0x170
[ 1427.918043][   T73]      do_syscall_64+0xc6/0x1e0
[ 1427.918043][   T73] 
[ 1427.920253][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1427.920253][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1427.920253][   T73]      ipv6_find_idev+0x102/0x170
[ 1427.920253][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1427.920253][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1427.920253][   T73]      netlink_rcv_skb+0x130/0x360
[ 1427.920253][   T73]      netlink_unicast+0x449/0x710
[ 1427.920253][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1427.920253][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1427.920253][   T73]      ___sys_sendmsg+0xee/0x170
[ 1427.920253][   T73]      __sys_sendmsg+0xcd/0x170
[ 1427.920253][   T73]      do_syscall_64+0xc6/0x1e0
[ 1427.920253][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1427.920253][   T73] 
[ 1427.921978][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1427.921978][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1427.921978][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1427.921978][   T73]      ipv6_find_idev+0x102/0x170
[ 1427.921978][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1427.921978][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1427.921978][   T73]      netlink_rcv_skb+0x130/0x360
[ 1427.921978][   T73]      netlink_unicast+0x449/0x710
[ 1427.921978][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1427.921978][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1427.921978][   T73]      ___sys_sendmsg+0xee/0x170
[ 1427.921978][   T73]      __sys_sendmsg+0xcd/0x170
[ 1427.921978][   T73]      do_syscall_64+0xc6/0x1e0
[ 1427.921978][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1427.921978][   T73] 
[ 1437.975770][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1437.976263][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1437.976263][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1437.976263][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1437.976263][   T73]      fib6_nh_init+0xa22/0x1580
[ 1437.976263][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1437.976263][   T73]      ip6_route_add+0x1c/0x140
[ 1437.976263][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1437.976263][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1437.976263][   T73]      netlink_rcv_skb+0x130/0x360
[ 1437.976263][   T73]      netlink_unicast+0x449/0x710
[ 1437.976263][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1437.976263][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1437.976263][   T73]      ___sys_sendmsg+0xee/0x170
[ 1437.976263][   T73]      __sys_sendmsg+0xcd/0x170
[ 1437.976263][   T73]      do_syscall_64+0xc6/0x1e0
[ 1437.976263][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1437.976263][   T73] 
[ 1437.978185][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1437.978185][   T73]      dst_init+0x84/0x4a0
[ 1437.978185][   T73]      dst_alloc+0x97/0x150
[ 1437.978185][   T73]      ip6_dst_alloc+0x23/0x90
[ 1437.978185][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1437.978185][   T73]      ip6_pol_route+0x56f/0x840
[ 1437.978185][   T73]      fib6_rule_lookup+0x456/0x630
[ 1437.978185][   T73]      ip6_route_input+0x59c/0xa50
[ 1437.978185][   T73]      ipv6_rcv+0x397/0x810
[ 1437.978185][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1437.978185][   T73]      process_backlog+0x101/0x620
[ 1437.978185][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1437.978185][   T73]      net_rx_action+0x495/0xbe0
[ 1437.978185][   T73]      __do_softirq+0x1b5/0x7f6
[ 1437.978185][   T73] 
[ 1437.979880][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1437.979880][   T73]      netdev_get_by_index+0x5e/0x80
[ 1437.979880][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1437.979880][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1437.979880][   T73]      ip6_route_add+0x1c/0x140
[ 1437.979880][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1437.979880][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1437.979880][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1437.979880][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1437.979880][   T73]      netlink_rcv_skb+0x130/0x360
[ 1437.979880][   T73]      netlink_unicast+0x449/0x710
[ 1437.979880][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1437.979880][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1437.979880][   T73]      ___sys_sendmsg+0xee/0x170
[ 1437.979880][   T73]      __sys_sendmsg+0xcd/0x170
[ 1437.979880][   T73]      do_syscall_64+0xc6/0x1e0
[ 1437.979880][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1437.979880][   T73] 
[ 1437.982027][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1437.982027][   T73]      netdev_get_by_index+0x5e/0x80
[ 1437.982027][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1437.982027][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1437.982027][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1437.982027][   T73]      ipv6_add_addr+0x411/0x2000
[ 1437.982027][   T73]      inet6_addr_add+0x30e/0xa40
[ 1437.982027][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1437.982027][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1437.982027][   T73]      netlink_rcv_skb+0x130/0x360
[ 1437.982027][   T73]      netlink_unicast+0x449/0x710
[ 1437.982027][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1437.982027][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1437.982027][   T73]      ___sys_sendmsg+0xee/0x170
[ 1437.982027][   T73]      __sys_sendmsg+0xcd/0x170
[ 1437.982027][   T73]      do_syscall_64+0xc6/0x1e0
[ 1437.982027][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1437.982027][   T73] 
[ 1437.984124][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1437.984124][   T73]      netdev_get_by_index+0x5e/0x80
[ 1437.984124][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1437.984124][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1437.984124][   T73]      ip6_route_add+0x1c/0x140
[ 1437.984124][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1437.984124][   T73]      addrconf_add_dev+0xe2/0x170
[ 1437.984124][   T73]      inet6_addr_add+0x12f/0xa40
[ 1437.984124][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1437.984124][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1437.984124][   T73]      netlink_rcv_skb+0x130/0x360
[ 1437.984124][   T73]      netlink_unicast+0x449/0x710
[ 1437.984124][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1437.984124][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1437.984124][   T73]      ___sys_sendmsg+0xee/0x170
[ 1437.984124][   T73]      __sys_sendmsg+0xcd/0x170
[ 1437.984124][   T73]      do_syscall_64+0xc6/0x1e0
[ 1437.984124][   T73] 
[ 1437.986211][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1437.986211][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1437.986211][   T73]      ipv6_find_idev+0x102/0x170
[ 1437.986211][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1437.986211][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1437.986211][   T73]      netlink_rcv_skb+0x130/0x360
[ 1437.986211][   T73]      netlink_unicast+0x449/0x710
[ 1437.986211][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1437.986211][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1437.986211][   T73]      ___sys_sendmsg+0xee/0x170
[ 1437.986211][   T73]      __sys_sendmsg+0xcd/0x170
[ 1437.986211][   T73]      do_syscall_64+0xc6/0x1e0
[ 1437.986211][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1437.986211][   T73] 
[ 1437.987845][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1437.987845][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1437.987845][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1437.987845][   T73]      ipv6_find_idev+0x102/0x170
[ 1437.987845][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1437.987845][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1437.987845][   T73]      netlink_rcv_skb+0x130/0x360
[ 1437.987845][   T73]      netlink_unicast+0x449/0x710
[ 1437.987845][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1437.987845][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1437.987845][   T73]      ___sys_sendmsg+0xee/0x170
[ 1437.987845][   T73]      __sys_sendmsg+0xcd/0x170
[ 1437.987845][   T73]      do_syscall_64+0xc6/0x1e0
[ 1437.987845][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1437.987845][   T73] 
[ 1437.989619][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1437.989935][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1437.989935][   T73]      netdev_get_by_index+0x5e/0x80
[ 1437.989935][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1437.989935][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1437.989935][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1437.989935][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1437.989935][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1437.989935][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1437.989935][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1437.989935][   T73]      addrconf_dad_begin+0x310/0x670
[ 1437.989935][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1437.989935][   T73]      process_one_work+0x84d/0x18a0
[ 1437.989935][   T73]      worker_thread+0x587/0xd30
[ 1437.989935][   T73]      kthread+0x28a/0x350
[ 1437.989935][   T73]      ret_from_fork+0x31/0x70
[ 1437.989935][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1437.989935][   T73] 
[ 1437.991911][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1437.991911][   T73]      netdev_get_by_index+0x5e/0x80
[ 1437.991911][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1437.991911][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1437.991911][   T73]      ip6_route_add+0x1c/0x140
[ 1437.991911][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1437.991911][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1437.991911][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1437.991911][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1437.991911][   T73]      netlink_rcv_skb+0x130/0x360
[ 1437.991911][   T73]      netlink_unicast+0x449/0x710
[ 1437.991911][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1437.991911][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1437.991911][   T73]      ___sys_sendmsg+0xee/0x170
[ 1437.991911][   T73]      __sys_sendmsg+0xcd/0x170
[ 1437.991911][   T73]      do_syscall_64+0xc6/0x1e0
[ 1437.991911][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1437.991911][   T73] 
[ 1437.993905][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1437.993905][   T73]      netdev_get_by_index+0x5e/0x80
[ 1437.993905][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1437.993905][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1437.993905][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1437.993905][   T73]      ipv6_add_addr+0x411/0x2000
[ 1437.993905][   T73]      inet6_addr_add+0x30e/0xa40
[ 1437.993905][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1437.993905][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1437.993905][   T73]      netlink_rcv_skb+0x130/0x360
[ 1437.993905][   T73]      netlink_unicast+0x449/0x710
[ 1437.993905][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1437.993905][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1437.993905][   T73]      ___sys_sendmsg+0xee/0x170
[ 1437.993905][   T73]      __sys_sendmsg+0xcd/0x170
[ 1437.993905][   T73]      do_syscall_64+0xc6/0x1e0
[ 1437.993905][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1437.993905][   T73] 
[ 1437.995966][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1437.995966][   T73]      netdev_get_by_index+0x5e/0x80
[ 1437.995966][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1437.995966][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1437.995966][   T73]      ip6_route_add+0x1c/0x140
[ 1437.995966][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1437.995966][   T73]      addrconf_add_dev+0xe2/0x170
[ 1437.995966][   T73]      inet6_addr_add+0x12f/0xa40
[ 1437.995966][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1437.995966][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1437.995966][   T73]      netlink_rcv_skb+0x130/0x360
[ 1437.995966][   T73]      netlink_unicast+0x449/0x710
[ 1437.995966][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1437.995966][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1437.995966][   T73]      ___sys_sendmsg+0xee/0x170
[ 1437.995966][   T73]      __sys_sendmsg+0xcd/0x170
[ 1437.995966][   T73]      do_syscall_64+0xc6/0x1e0
[ 1437.995966][   T73] 
[ 1437.998070][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1437.998070][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1437.998070][   T73]      ipv6_find_idev+0x102/0x170
[ 1437.998070][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1437.998070][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1437.998070][   T73]      netlink_rcv_skb+0x130/0x360
[ 1437.998070][   T73]      netlink_unicast+0x449/0x710
[ 1437.998070][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1437.998070][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1437.998070][   T73]      ___sys_sendmsg+0xee/0x170
[ 1437.998070][   T73]      __sys_sendmsg+0xcd/0x170
[ 1437.998070][   T73]      do_syscall_64+0xc6/0x1e0
[ 1437.998070][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1437.998070][   T73] 
[ 1437.999670][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1437.999670][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1437.999670][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1437.999670][   T73]      ipv6_find_idev+0x102/0x170
[ 1437.999670][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1437.999670][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1437.999670][   T73]      netlink_rcv_skb+0x130/0x360
[ 1437.999670][   T73]      netlink_unicast+0x449/0x710
[ 1437.999670][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1437.999670][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1437.999670][   T73]      ___sys_sendmsg+0xee/0x170
[ 1437.999670][   T73]      __sys_sendmsg+0xcd/0x170
[ 1437.999670][   T73]      do_syscall_64+0xc6/0x1e0
[ 1437.999670][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1437.999670][   T73] 
[ 1438.001458][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1438.001765][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1438.001765][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1438.001765][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1438.001765][   T73]      fib6_nh_init+0xa22/0x1580
[ 1438.001765][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1438.001765][   T73]      ip6_route_add+0x1c/0x140
[ 1438.001765][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1438.001765][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1438.001765][   T73]      netlink_rcv_skb+0x130/0x360
[ 1438.001765][   T73]      netlink_unicast+0x449/0x710
[ 1438.001765][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1438.001765][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1438.001765][   T73]      ___sys_sendmsg+0xee/0x170
[ 1438.001765][   T73]      __sys_sendmsg+0xcd/0x170
[ 1438.001765][   T73]      do_syscall_64+0xc6/0x1e0
[ 1438.001765][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1438.001765][   T73] 
[ 1438.003886][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1438.003886][   T73]      dst_init+0x84/0x4a0
[ 1438.003886][   T73]      dst_alloc+0x97/0x150
[ 1438.003886][   T73]      ip6_dst_alloc+0x23/0x90
[ 1438.003886][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1438.003886][   T73]      ip6_pol_route+0x56f/0x840
[ 1438.003886][   T73]      fib6_rule_lookup+0x456/0x630
[ 1438.003886][   T73]      ip6_route_input+0x59c/0xa50
[ 1438.003886][   T73]      ipv6_rcv+0x397/0x810
[ 1438.003886][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1438.003886][   T73]      process_backlog+0x101/0x620
[ 1438.003886][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1438.003886][   T73]      net_rx_action+0x495/0xbe0
[ 1438.003886][   T73]      __do_softirq+0x1b5/0x7f6
[ 1438.003886][   T73] 
[ 1438.005887][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1438.005887][   T73]      netdev_get_by_index+0x5e/0x80
[ 1438.005887][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1438.005887][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1438.005887][   T73]      ip6_route_add+0x1c/0x140
[ 1438.005887][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1438.005887][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1438.005887][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1438.005887][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1438.005887][   T73]      netlink_rcv_skb+0x130/0x360
[ 1438.005887][   T73]      netlink_unicast+0x449/0x710
[ 1438.005887][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1438.005887][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1438.005887][   T73]      ___sys_sendmsg+0xee/0x170
[ 1438.005887][   T73]      __sys_sendmsg+0xcd/0x170
[ 1438.005887][   T73]      do_syscall_64+0xc6/0x1e0
[ 1438.005887][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1438.005887][   T73] 
[ 1438.008268][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1438.008268][   T73]      netdev_get_by_index+0x5e/0x80
[ 1438.008268][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1438.008268][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1438.008268][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1438.008268][   T73]      ipv6_add_addr+0x411/0x2000
[ 1438.008268][   T73]      inet6_addr_add+0x30e/0xa40
[ 1438.008268][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1438.008268][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1438.008268][   T73]      netlink_rcv_skb+0x130/0x360
[ 1438.008268][   T73]      netlink_unicast+0x449/0x710
[ 1438.008268][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1438.008268][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1438.008268][   T73]      ___sys_sendmsg+0xee/0x170
[ 1438.008268][   T73]      __sys_sendmsg+0xcd/0x170
[ 1438.008268][   T73]      do_syscall_64+0xc6/0x1e0
[ 1438.008268][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1438.008268][   T73] 
[ 1438.010617][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1438.010617][   T73]      netdev_get_by_index+0x5e/0x80
[ 1438.010617][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1438.010617][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1438.010617][   T73]      ip6_route_add+0x1c/0x140
[ 1438.010617][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1438.010617][   T73]      addrconf_add_dev+0xe2/0x170
[ 1438.010617][   T73]      inet6_addr_add+0x12f/0xa40
[ 1438.010617][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1438.010617][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1438.010617][   T73]      netlink_rcv_skb+0x130/0x360
[ 1438.010617][   T73]      netlink_unicast+0x449/0x710
[ 1438.010617][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1438.010617][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1438.010617][   T73]      ___sys_sendmsg+0xee/0x170
[ 1438.010617][   T73]      __sys_sendmsg+0xcd/0x170
[ 1438.010617][   T73]      do_syscall_64+0xc6/0x1e0
[ 1438.010617][   T73] 
[ 1438.012811][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1438.012811][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1438.012811][   T73]      ipv6_find_idev+0x102/0x170
[ 1438.012811][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1438.012811][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1438.012811][   T73]      netlink_rcv_skb+0x130/0x360
[ 1438.012811][   T73]      netlink_unicast+0x449/0x710
[ 1438.012811][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1438.012811][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1438.012811][   T73]      ___sys_sendmsg+0xee/0x170
[ 1438.012811][   T73]      __sys_sendmsg+0xcd/0x170
[ 1438.012811][   T73]      do_syscall_64+0xc6/0x1e0
[ 1438.012811][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1438.012811][   T73] 
[ 1438.014591][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1438.014591][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1438.014591][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1438.014591][   T73]      ipv6_find_idev+0x102/0x170
[ 1438.014591][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1438.014591][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1438.014591][   T73]      netlink_rcv_skb+0x130/0x360
[ 1438.014591][   T73]      netlink_unicast+0x449/0x710
[ 1438.014591][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1438.014591][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1438.014591][   T73]      ___sys_sendmsg+0xee/0x170
[ 1438.014591][   T73]      __sys_sendmsg+0xcd/0x170
[ 1438.014591][   T73]      do_syscall_64+0xc6/0x1e0
[ 1438.014591][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1438.014591][   T73] 
[ 1438.016510][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1438.017343][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1438.017343][   T73]      netdev_get_by_index+0x5e/0x80
[ 1438.017343][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1438.017343][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1438.017343][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1438.017343][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1438.017343][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1438.017343][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1438.017343][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1438.017343][   T73]      addrconf_dad_begin+0x310/0x670
[ 1438.017343][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1438.017343][   T73]      process_one_work+0x84d/0x18a0
[ 1438.017343][   T73]      worker_thread+0x587/0xd30
[ 1438.017343][   T73]      kthread+0x28a/0x350
[ 1438.017343][   T73]      ret_from_fork+0x31/0x70
[ 1438.017343][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1438.017343][   T73] 
[ 1438.019367][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1438.019367][   T73]      netdev_get_by_index+0x5e/0x80
[ 1438.019367][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1438.019367][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1438.019367][   T73]      ip6_route_add+0x1c/0x140
[ 1438.019367][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1438.019367][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1438.019367][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1438.019367][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1438.019367][   T73]      netlink_rcv_skb+0x130/0x360
[ 1438.019367][   T73]      netlink_unicast+0x449/0x710
[ 1438.019367][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1438.019367][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1438.019367][   T73]      ___sys_sendmsg+0xee/0x170
[ 1438.019367][   T73]      __sys_sendmsg+0xcd/0x170
[ 1438.019367][   T73]      do_syscall_64+0xc6/0x1e0
[ 1438.019367][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1438.019367][   T73] 
[ 1438.021542][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1438.021542][   T73]      netdev_get_by_index+0x5e/0x80
[ 1438.021542][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1438.021542][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1438.021542][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1438.021542][   T73]      ipv6_add_addr+0x411/0x2000
[ 1438.021542][   T73]      inet6_addr_add+0x30e/0xa40
[ 1438.021542][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1438.021542][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1438.021542][   T73]      netlink_rcv_skb+0x130/0x360
[ 1438.021542][   T73]      netlink_unicast+0x449/0x710
[ 1438.021542][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1438.021542][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1438.021542][   T73]      ___sys_sendmsg+0xee/0x170
[ 1438.021542][   T73]      __sys_sendmsg+0xcd/0x170
[ 1438.021542][   T73]      do_syscall_64+0xc6/0x1e0
[ 1438.021542][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1438.021542][   T73] 
[ 1438.023867][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1438.023867][   T73]      netdev_get_by_index+0x5e/0x80
[ 1438.023867][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1438.023867][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1438.023867][   T73]      ip6_route_add+0x1c/0x140
[ 1438.023867][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1438.023867][   T73]      addrconf_add_dev+0xe2/0x170
[ 1438.023867][   T73]      inet6_addr_add+0x12f/0xa40
[ 1438.023867][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1438.023867][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1438.023867][   T73]      netlink_rcv_skb+0x130/0x360
[ 1438.023867][   T73]      netlink_unicast+0x449/0x710
[ 1438.023867][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1438.023867][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1438.023867][   T73]      ___sys_sendmsg+0xee/0x170
[ 1438.023867][   T73]      __sys_sendmsg+0xcd/0x170
[ 1438.023867][   T73]      do_syscall_64+0xc6/0x1e0
[ 1438.023867][   T73] 
[ 1438.026332][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1438.026332][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1438.026332][   T73]      ipv6_find_idev+0x102/0x170
[ 1438.026332][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1438.026332][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1438.026332][   T73]      netlink_rcv_skb+0x130/0x360
[ 1438.026332][   T73]      netlink_unicast+0x449/0x710
[ 1438.026332][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1438.026332][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1438.026332][   T73]      ___sys_sendmsg+0xee/0x170
[ 1438.026332][   T73]      __sys_sendmsg+0xcd/0x170
[ 1438.026332][   T73]      do_syscall_64+0xc6/0x1e0
[ 1438.026332][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1438.026332][   T73] 
[ 1438.028355][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1438.028355][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1438.028355][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1438.028355][   T73]      ipv6_find_idev+0x102/0x170
[ 1438.028355][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1438.028355][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1438.028355][   T73]      netlink_rcv_skb+0x130/0x360
[ 1438.028355][   T73]      netlink_unicast+0x449/0x710
[ 1438.028355][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1438.028355][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1438.028355][   T73]      ___sys_sendmsg+0xee/0x170
[ 1438.028355][   T73]      __sys_sendmsg+0xcd/0x170
[ 1438.028355][   T73]      do_syscall_64+0xc6/0x1e0
[ 1438.028355][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1438.028355][   T73] 
[ 1448.119834][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1448.120322][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1448.120322][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1448.120322][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1448.120322][   T73]      fib6_nh_init+0xa22/0x1580
[ 1448.120322][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1448.120322][   T73]      ip6_route_add+0x1c/0x140
[ 1448.120322][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1448.120322][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1448.120322][   T73]      netlink_rcv_skb+0x130/0x360
[ 1448.120322][   T73]      netlink_unicast+0x449/0x710
[ 1448.120322][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1448.120322][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1448.120322][   T73]      ___sys_sendmsg+0xee/0x170
[ 1448.120322][   T73]      __sys_sendmsg+0xcd/0x170
[ 1448.120322][   T73]      do_syscall_64+0xc6/0x1e0
[ 1448.120322][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1448.120322][   T73] 
[ 1448.122239][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1448.122239][   T73]      dst_init+0x84/0x4a0
[ 1448.122239][   T73]      dst_alloc+0x97/0x150
[ 1448.122239][   T73]      ip6_dst_alloc+0x23/0x90
[ 1448.122239][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1448.122239][   T73]      ip6_pol_route+0x56f/0x840
[ 1448.122239][   T73]      fib6_rule_lookup+0x456/0x630
[ 1448.122239][   T73]      ip6_route_input+0x59c/0xa50
[ 1448.122239][   T73]      ipv6_rcv+0x397/0x810
[ 1448.122239][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1448.122239][   T73]      process_backlog+0x101/0x620
[ 1448.122239][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1448.122239][   T73]      net_rx_action+0x495/0xbe0
[ 1448.122239][   T73]      __do_softirq+0x1b5/0x7f6
[ 1448.122239][   T73] 
[ 1448.123894][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1448.123894][   T73]      netdev_get_by_index+0x5e/0x80
[ 1448.123894][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1448.123894][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1448.123894][   T73]      ip6_route_add+0x1c/0x140
[ 1448.123894][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1448.123894][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1448.123894][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1448.123894][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1448.123894][   T73]      netlink_rcv_skb+0x130/0x360
[ 1448.123894][   T73]      netlink_unicast+0x449/0x710
[ 1448.123894][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1448.123894][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1448.123894][   T73]      ___sys_sendmsg+0xee/0x170
[ 1448.123894][   T73]      __sys_sendmsg+0xcd/0x170
[ 1448.123894][   T73]      do_syscall_64+0xc6/0x1e0
[ 1448.123894][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1448.123894][   T73] 
[ 1448.125946][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1448.125946][   T73]      netdev_get_by_index+0x5e/0x80
[ 1448.125946][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1448.125946][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1448.125946][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1448.125946][   T73]      ipv6_add_addr+0x411/0x2000
[ 1448.125946][   T73]      inet6_addr_add+0x30e/0xa40
[ 1448.125946][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1448.125946][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1448.125946][   T73]      netlink_rcv_skb+0x130/0x360
[ 1448.125946][   T73]      netlink_unicast+0x449/0x710
[ 1448.125946][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1448.125946][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1448.125946][   T73]      ___sys_sendmsg+0xee/0x170
[ 1448.125946][   T73]      __sys_sendmsg+0xcd/0x170
[ 1448.125946][   T73]      do_syscall_64+0xc6/0x1e0
[ 1448.125946][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1448.125946][   T73] 
[ 1448.127973][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1448.127973][   T73]      netdev_get_by_index+0x5e/0x80
[ 1448.127973][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1448.127973][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1448.127973][   T73]      ip6_route_add+0x1c/0x140
[ 1448.127973][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1448.127973][   T73]      addrconf_add_dev+0xe2/0x170
[ 1448.127973][   T73]      inet6_addr_add+0x12f/0xa40
[ 1448.127973][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1448.127973][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1448.127973][   T73]      netlink_rcv_skb+0x130/0x360
[ 1448.127973][   T73]      netlink_unicast+0x449/0x710
[ 1448.127973][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1448.127973][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1448.127973][   T73]      ___sys_sendmsg+0xee/0x170
[ 1448.127973][   T73]      __sys_sendmsg+0xcd/0x170
[ 1448.127973][   T73]      do_syscall_64+0xc6/0x1e0
[ 1448.127973][   T73] 
[ 1448.129999][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1448.129999][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1448.129999][   T73]      ipv6_find_idev+0x102/0x170
[ 1448.129999][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1448.129999][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1448.129999][   T73]      netlink_rcv_skb+0x130/0x360
[ 1448.129999][   T73]      netlink_unicast+0x449/0x710
[ 1448.129999][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1448.129999][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1448.129999][   T73]      ___sys_sendmsg+0xee/0x170
[ 1448.129999][   T73]      __sys_sendmsg+0xcd/0x170
[ 1448.129999][   T73]      do_syscall_64+0xc6/0x1e0
[ 1448.129999][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1448.129999][   T73] 
[ 1448.131565][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1448.131565][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1448.131565][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1448.131565][   T73]      ipv6_find_idev+0x102/0x170
[ 1448.131565][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1448.131565][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1448.131565][   T73]      netlink_rcv_skb+0x130/0x360
[ 1448.131565][   T73]      netlink_unicast+0x449/0x710
[ 1448.131565][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1448.131565][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1448.131565][   T73]      ___sys_sendmsg+0xee/0x170
[ 1448.131565][   T73]      __sys_sendmsg+0xcd/0x170
[ 1448.131565][   T73]      do_syscall_64+0xc6/0x1e0
[ 1448.131565][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1448.131565][   T73] 
[ 1448.133318][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1448.133608][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1448.133608][   T73]      netdev_get_by_index+0x5e/0x80
[ 1448.133608][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1448.133608][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1448.133608][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1448.133608][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1448.133608][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1448.133608][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1448.133608][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1448.133608][   T73]      addrconf_dad_begin+0x310/0x670
[ 1448.133608][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1448.133608][   T73]      process_one_work+0x84d/0x18a0
[ 1448.133608][   T73]      worker_thread+0x587/0xd30
[ 1448.133608][   T73]      kthread+0x28a/0x350
[ 1448.133608][   T73]      ret_from_fork+0x31/0x70
[ 1448.133608][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1448.133608][   T73] 
[ 1448.135541][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1448.135541][   T73]      netdev_get_by_index+0x5e/0x80
[ 1448.135541][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1448.135541][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1448.135541][   T73]      ip6_route_add+0x1c/0x140
[ 1448.135541][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1448.135541][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1448.135541][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1448.135541][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1448.135541][   T73]      netlink_rcv_skb+0x130/0x360
[ 1448.135541][   T73]      netlink_unicast+0x449/0x710
[ 1448.135541][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1448.135541][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1448.135541][   T73]      ___sys_sendmsg+0xee/0x170
[ 1448.135541][   T73]      __sys_sendmsg+0xcd/0x170
[ 1448.135541][   T73]      do_syscall_64+0xc6/0x1e0
[ 1448.135541][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1448.135541][   T73] 
[ 1448.137600][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1448.137600][   T73]      netdev_get_by_index+0x5e/0x80
[ 1448.137600][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1448.137600][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1448.137600][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1448.137600][   T73]      ipv6_add_addr+0x411/0x2000
[ 1448.137600][   T73]      inet6_addr_add+0x30e/0xa40
[ 1448.137600][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1448.137600][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1448.137600][   T73]      netlink_rcv_skb+0x130/0x360
[ 1448.137600][   T73]      netlink_unicast+0x449/0x710
[ 1448.137600][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1448.137600][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1448.137600][   T73]      ___sys_sendmsg+0xee/0x170
[ 1448.137600][   T73]      __sys_sendmsg+0xcd/0x170
[ 1448.137600][   T73]      do_syscall_64+0xc6/0x1e0
[ 1448.137600][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1448.137600][   T73] 
[ 1448.139644][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1448.139644][   T73]      netdev_get_by_index+0x5e/0x80
[ 1448.139644][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1448.139644][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1448.139644][   T73]      ip6_route_add+0x1c/0x140
[ 1448.139644][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1448.139644][   T73]      addrconf_add_dev+0xe2/0x170
[ 1448.139644][   T73]      inet6_addr_add+0x12f/0xa40
[ 1448.139644][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1448.139644][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1448.139644][   T73]      netlink_rcv_skb+0x130/0x360
[ 1448.139644][   T73]      netlink_unicast+0x449/0x710
[ 1448.139644][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1448.139644][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1448.139644][   T73]      ___sys_sendmsg+0xee/0x170
[ 1448.139644][   T73]      __sys_sendmsg+0xcd/0x170
[ 1448.139644][   T73]      do_syscall_64+0xc6/0x1e0
[ 1448.139644][   T73] 
[ 1448.141656][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1448.141656][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1448.141656][   T73]      ipv6_find_idev+0x102/0x170
[ 1448.141656][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1448.141656][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1448.141656][   T73]      netlink_rcv_skb+0x130/0x360
[ 1448.141656][   T73]      netlink_unicast+0x449/0x710
[ 1448.141656][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1448.141656][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1448.141656][   T73]      ___sys_sendmsg+0xee/0x170
[ 1448.141656][   T73]      __sys_sendmsg+0xcd/0x170
[ 1448.141656][   T73]      do_syscall_64+0xc6/0x1e0
[ 1448.141656][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1448.141656][   T73] 
[ 1448.143207][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1448.143207][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1448.143207][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1448.143207][   T73]      ipv6_find_idev+0x102/0x170
[ 1448.143207][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1448.143207][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1448.143207][   T73]      netlink_rcv_skb+0x130/0x360
[ 1448.143207][   T73]      netlink_unicast+0x449/0x710
[ 1448.143207][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1448.143207][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1448.143207][   T73]      ___sys_sendmsg+0xee/0x170
[ 1448.143207][   T73]      __sys_sendmsg+0xcd/0x170
[ 1448.143207][   T73]      do_syscall_64+0xc6/0x1e0
[ 1448.143207][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1448.143207][   T73] 
[ 1448.144961][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1448.145237][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1448.145237][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1448.145237][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1448.145237][   T73]      fib6_nh_init+0xa22/0x1580
[ 1448.145237][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1448.145237][   T73]      ip6_route_add+0x1c/0x140
[ 1448.145237][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1448.145237][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1448.145237][   T73]      netlink_rcv_skb+0x130/0x360
[ 1448.145237][   T73]      netlink_unicast+0x449/0x710
[ 1448.145237][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1448.145237][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1448.145237][   T73]      ___sys_sendmsg+0xee/0x170
[ 1448.145237][   T73]      __sys_sendmsg+0xcd/0x170
[ 1448.145237][   T73]      do_syscall_64+0xc6/0x1e0
[ 1448.145237][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1448.145237][   T73] 
[ 1448.147325][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1448.147325][   T73]      dst_init+0x84/0x4a0
[ 1448.147325][   T73]      dst_alloc+0x97/0x150
[ 1448.147325][   T73]      ip6_dst_alloc+0x23/0x90
[ 1448.147325][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1448.147325][   T73]      ip6_pol_route+0x56f/0x840
[ 1448.147325][   T73]      fib6_rule_lookup+0x456/0x630
[ 1448.147325][   T73]      ip6_route_input+0x59c/0xa50
[ 1448.147325][   T73]      ipv6_rcv+0x397/0x810
[ 1448.147325][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1448.147325][   T73]      process_backlog+0x101/0x620
[ 1448.147325][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1448.147325][   T73]      net_rx_action+0x495/0xbe0
[ 1448.147325][   T73]      __do_softirq+0x1b5/0x7f6
[ 1448.147325][   T73] 
[ 1448.149197][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1448.149197][   T73]      netdev_get_by_index+0x5e/0x80
[ 1448.149197][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1448.149197][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1448.149197][   T73]      ip6_route_add+0x1c/0x140
[ 1448.149197][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1448.149197][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1448.149197][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1448.149197][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1448.149197][   T73]      netlink_rcv_skb+0x130/0x360
[ 1448.149197][   T73]      netlink_unicast+0x449/0x710
[ 1448.149197][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1448.149197][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1448.149197][   T73]      ___sys_sendmsg+0xee/0x170
[ 1448.149197][   T73]      __sys_sendmsg+0xcd/0x170
[ 1448.149197][   T73]      do_syscall_64+0xc6/0x1e0
[ 1448.149197][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1448.149197][   T73] 
[ 1448.151454][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1448.151454][   T73]      netdev_get_by_index+0x5e/0x80
[ 1448.151454][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1448.151454][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1448.151454][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1448.151454][   T73]      ipv6_add_addr+0x411/0x2000
[ 1448.151454][   T73]      inet6_addr_add+0x30e/0xa40
[ 1448.151454][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1448.151454][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1448.151454][   T73]      netlink_rcv_skb+0x130/0x360
[ 1448.151454][   T73]      netlink_unicast+0x449/0x710
[ 1448.151454][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1448.151454][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1448.151454][   T73]      ___sys_sendmsg+0xee/0x170
[ 1448.151454][   T73]      __sys_sendmsg+0xcd/0x170
[ 1448.151454][   T73]      do_syscall_64+0xc6/0x1e0
[ 1448.151454][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1448.151454][   T73] 
[ 1448.153729][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1448.153729][   T73]      netdev_get_by_index+0x5e/0x80
[ 1448.153729][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1448.153729][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1448.153729][   T73]      ip6_route_add+0x1c/0x140
[ 1448.153729][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1448.153729][   T73]      addrconf_add_dev+0xe2/0x170
[ 1448.153729][   T73]      inet6_addr_add+0x12f/0xa40
[ 1448.153729][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1448.153729][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1448.153729][   T73]      netlink_rcv_skb+0x130/0x360
[ 1448.153729][   T73]      netlink_unicast+0x449/0x710
[ 1448.153729][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1448.153729][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1448.153729][   T73]      ___sys_sendmsg+0xee/0x170
[ 1448.153729][   T73]      __sys_sendmsg+0xcd/0x170
[ 1448.153729][   T73]      do_syscall_64+0xc6/0x1e0
[ 1448.153729][   T73] 
[ 1448.156514][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1448.156514][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1448.156514][   T73]      ipv6_find_idev+0x102/0x170
[ 1448.156514][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1448.156514][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1448.156514][   T73]      netlink_rcv_skb+0x130/0x360
[ 1448.156514][   T73]      netlink_unicast+0x449/0x710
[ 1448.156514][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1448.156514][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1448.156514][   T73]      ___sys_sendmsg+0xee/0x170
[ 1448.156514][   T73]      __sys_sendmsg+0xcd/0x170
[ 1448.156514][   T73]      do_syscall_64+0xc6/0x1e0
[ 1448.156514][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1448.156514][   T73] 
[ 1448.158256][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1448.158256][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1448.158256][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1448.158256][   T73]      ipv6_find_idev+0x102/0x170
[ 1448.158256][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1448.158256][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1448.158256][   T73]      netlink_rcv_skb+0x130/0x360
[ 1448.158256][   T73]      netlink_unicast+0x449/0x710
[ 1448.158256][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1448.158256][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1448.158256][   T73]      ___sys_sendmsg+0xee/0x170
[ 1448.158256][   T73]      __sys_sendmsg+0xcd/0x170
[ 1448.158256][   T73]      do_syscall_64+0xc6/0x1e0
[ 1448.158256][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1448.158256][   T73] 
[ 1448.160229][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1448.160518][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1448.160518][   T73]      netdev_get_by_index+0x5e/0x80
[ 1448.160518][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1448.160518][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1448.160518][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1448.160518][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1448.160518][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1448.160518][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1448.160518][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1448.160518][   T73]      addrconf_dad_begin+0x310/0x670
[ 1448.160518][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1448.160518][   T73]      process_one_work+0x84d/0x18a0
[ 1448.160518][   T73]      worker_thread+0x587/0xd30
[ 1448.160518][   T73]      kthread+0x28a/0x350
[ 1448.160518][   T73]      ret_from_fork+0x31/0x70
[ 1448.160518][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1448.160518][   T73] 
[ 1448.162690][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1448.162690][   T73]      netdev_get_by_index+0x5e/0x80
[ 1448.162690][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1448.162690][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1448.162690][   T73]      ip6_route_add+0x1c/0x140
[ 1448.162690][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1448.162690][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1448.162690][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1448.162690][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1448.162690][   T73]      netlink_rcv_skb+0x130/0x360
[ 1448.162690][   T73]      netlink_unicast+0x449/0x710
[ 1448.162690][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1448.162690][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1448.162690][   T73]      ___sys_sendmsg+0xee/0x170
[ 1448.162690][   T73]      __sys_sendmsg+0xcd/0x170
[ 1448.162690][   T73]      do_syscall_64+0xc6/0x1e0
[ 1448.162690][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1448.162690][   T73] 
[ 1448.165031][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1448.165031][   T73]      netdev_get_by_index+0x5e/0x80
[ 1448.165031][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1448.165031][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1448.165031][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1448.165031][   T73]      ipv6_add_addr+0x411/0x2000
[ 1448.165031][   T73]      inet6_addr_add+0x30e/0xa40
[ 1448.165031][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1448.165031][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1448.165031][   T73]      netlink_rcv_skb+0x130/0x360
[ 1448.165031][   T73]      netlink_unicast+0x449/0x710
[ 1448.165031][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1448.165031][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1448.165031][   T73]      ___sys_sendmsg+0xee/0x170
[ 1448.165031][   T73]      __sys_sendmsg+0xcd/0x170
[ 1448.165031][   T73]      do_syscall_64+0xc6/0x1e0
[ 1448.165031][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1448.165031][   T73] 
[ 1448.167226][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1448.167226][   T73]      netdev_get_by_index+0x5e/0x80
[ 1448.167226][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1448.167226][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1448.167226][   T73]      ip6_route_add+0x1c/0x140
[ 1448.167226][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1448.167226][   T73]      addrconf_add_dev+0xe2/0x170
[ 1448.167226][   T73]      inet6_addr_add+0x12f/0xa40
[ 1448.167226][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1448.167226][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1448.167226][   T73]      netlink_rcv_skb+0x130/0x360
[ 1448.167226][   T73]      netlink_unicast+0x449/0x710
[ 1448.167226][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1448.167226][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1448.167226][   T73]      ___sys_sendmsg+0xee/0x170
[ 1448.167226][   T73]      __sys_sendmsg+0xcd/0x170
[ 1448.167226][   T73]      do_syscall_64+0xc6/0x1e0
[ 1448.167226][   T73] 
[ 1448.169552][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1448.169552][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1448.169552][   T73]      ipv6_find_idev+0x102/0x170
[ 1448.169552][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1448.169552][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1448.169552][   T73]      netlink_rcv_skb+0x130/0x360
[ 1448.169552][   T73]      netlink_unicast+0x449/0x710
[ 1448.169552][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1448.169552][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1448.169552][   T73]      ___sys_sendmsg+0xee/0x170
[ 1448.169552][   T73]      __sys_sendmsg+0xcd/0x170
[ 1448.169552][   T73]      do_syscall_64+0xc6/0x1e0
[ 1448.169552][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1448.169552][   T73] 
[ 1448.171286][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1448.171286][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1448.171286][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1448.171286][   T73]      ipv6_find_idev+0x102/0x170
[ 1448.171286][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1448.171286][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1448.171286][   T73]      netlink_rcv_skb+0x130/0x360
[ 1448.171286][   T73]      netlink_unicast+0x449/0x710
[ 1448.171286][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1448.171286][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1448.171286][   T73]      ___sys_sendmsg+0xee/0x170
[ 1448.171286][   T73]      __sys_sendmsg+0xcd/0x170
[ 1448.171286][   T73]      do_syscall_64+0xc6/0x1e0
[ 1448.171286][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1448.171286][   T73] 
[ 1458.207791][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1458.208303][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1458.208303][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1458.208303][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1458.208303][   T73]      fib6_nh_init+0xa22/0x1580
[ 1458.208303][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1458.208303][   T73]      ip6_route_add+0x1c/0x140
[ 1458.208303][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1458.208303][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1458.208303][   T73]      netlink_rcv_skb+0x130/0x360
[ 1458.208303][   T73]      netlink_unicast+0x449/0x710
[ 1458.208303][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1458.208303][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1458.208303][   T73]      ___sys_sendmsg+0xee/0x170
[ 1458.208303][   T73]      __sys_sendmsg+0xcd/0x170
[ 1458.208303][   T73]      do_syscall_64+0xc6/0x1e0
[ 1458.208303][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1458.208303][   T73] 
[ 1458.210217][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1458.210217][   T73]      dst_init+0x84/0x4a0
[ 1458.210217][   T73]      dst_alloc+0x97/0x150
[ 1458.210217][   T73]      ip6_dst_alloc+0x23/0x90
[ 1458.210217][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1458.210217][   T73]      ip6_pol_route+0x56f/0x840
[ 1458.210217][   T73]      fib6_rule_lookup+0x456/0x630
[ 1458.210217][   T73]      ip6_route_input+0x59c/0xa50
[ 1458.210217][   T73]      ipv6_rcv+0x397/0x810
[ 1458.210217][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1458.210217][   T73]      process_backlog+0x101/0x620
[ 1458.210217][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1458.210217][   T73]      net_rx_action+0x495/0xbe0
[ 1458.210217][   T73]      __do_softirq+0x1b5/0x7f6
[ 1458.210217][   T73] 
[ 1458.211874][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1458.211874][   T73]      netdev_get_by_index+0x5e/0x80
[ 1458.211874][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1458.211874][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1458.211874][   T73]      ip6_route_add+0x1c/0x140
[ 1458.211874][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1458.211874][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1458.211874][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1458.211874][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1458.211874][   T73]      netlink_rcv_skb+0x130/0x360
[ 1458.211874][   T73]      netlink_unicast+0x449/0x710
[ 1458.211874][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1458.211874][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1458.211874][   T73]      ___sys_sendmsg+0xee/0x170
[ 1458.211874][   T73]      __sys_sendmsg+0xcd/0x170
[ 1458.211874][   T73]      do_syscall_64+0xc6/0x1e0
[ 1458.211874][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1458.211874][   T73] 
[ 1458.213902][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1458.213902][   T73]      netdev_get_by_index+0x5e/0x80
[ 1458.213902][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1458.213902][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1458.213902][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1458.213902][   T73]      ipv6_add_addr+0x411/0x2000
[ 1458.213902][   T73]      inet6_addr_add+0x30e/0xa40
[ 1458.213902][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1458.213902][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1458.213902][   T73]      netlink_rcv_skb+0x130/0x360
[ 1458.213902][   T73]      netlink_unicast+0x449/0x710
[ 1458.213902][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1458.213902][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1458.213902][   T73]      ___sys_sendmsg+0xee/0x170
[ 1458.213902][   T73]      __sys_sendmsg+0xcd/0x170
[ 1458.213902][   T73]      do_syscall_64+0xc6/0x1e0
[ 1458.213902][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1458.213902][   T73] 
[ 1458.216078][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1458.216078][   T73]      netdev_get_by_index+0x5e/0x80
[ 1458.216078][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1458.216078][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1458.216078][   T73]      ip6_route_add+0x1c/0x140
[ 1458.216078][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1458.216078][   T73]      addrconf_add_dev+0xe2/0x170
[ 1458.216078][   T73]      inet6_addr_add+0x12f/0xa40
[ 1458.216078][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1458.216078][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1458.216078][   T73]      netlink_rcv_skb+0x130/0x360
[ 1458.216078][   T73]      netlink_unicast+0x449/0x710
[ 1458.216078][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1458.216078][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1458.216078][   T73]      ___sys_sendmsg+0xee/0x170
[ 1458.216078][   T73]      __sys_sendmsg+0xcd/0x170
[ 1458.216078][   T73]      do_syscall_64+0xc6/0x1e0
[ 1458.216078][   T73] 
[ 1458.218221][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1458.218221][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1458.218221][   T73]      ipv6_find_idev+0x102/0x170
[ 1458.218221][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1458.218221][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1458.218221][   T73]      netlink_rcv_skb+0x130/0x360
[ 1458.218221][   T73]      netlink_unicast+0x449/0x710
[ 1458.218221][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1458.218221][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1458.218221][   T73]      ___sys_sendmsg+0xee/0x170
[ 1458.218221][   T73]      __sys_sendmsg+0xcd/0x170
[ 1458.218221][   T73]      do_syscall_64+0xc6/0x1e0
[ 1458.218221][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1458.218221][   T73] 
[ 1458.219813][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1458.219813][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1458.219813][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1458.219813][   T73]      ipv6_find_idev+0x102/0x170
[ 1458.219813][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1458.219813][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1458.219813][   T73]      netlink_rcv_skb+0x130/0x360
[ 1458.219813][   T73]      netlink_unicast+0x449/0x710
[ 1458.219813][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1458.219813][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1458.219813][   T73]      ___sys_sendmsg+0xee/0x170
[ 1458.219813][   T73]      __sys_sendmsg+0xcd/0x170
[ 1458.219813][   T73]      do_syscall_64+0xc6/0x1e0
[ 1458.219813][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1458.219813][   T73] 
[ 1458.221531][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1458.221834][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1458.221834][   T73]      netdev_get_by_index+0x5e/0x80
[ 1458.221834][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1458.221834][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1458.221834][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1458.221834][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1458.221834][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1458.221834][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1458.221834][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1458.221834][   T73]      addrconf_dad_begin+0x310/0x670
[ 1458.221834][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1458.221834][   T73]      process_one_work+0x84d/0x18a0
[ 1458.221834][   T73]      worker_thread+0x587/0xd30
[ 1458.221834][   T73]      kthread+0x28a/0x350
[ 1458.221834][   T73]      ret_from_fork+0x31/0x70
[ 1458.221834][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1458.221834][   T73] 
[ 1458.223808][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1458.223808][   T73]      netdev_get_by_index+0x5e/0x80
[ 1458.223808][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1458.223808][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1458.223808][   T73]      ip6_route_add+0x1c/0x140
[ 1458.223808][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1458.223808][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1458.223808][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1458.223808][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1458.223808][   T73]      netlink_rcv_skb+0x130/0x360
[ 1458.223808][   T73]      netlink_unicast+0x449/0x710
[ 1458.223808][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1458.223808][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1458.223808][   T73]      ___sys_sendmsg+0xee/0x170
[ 1458.223808][   T73]      __sys_sendmsg+0xcd/0x170
[ 1458.223808][   T73]      do_syscall_64+0xc6/0x1e0
[ 1458.223808][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1458.223808][   T73] 
[ 1458.225828][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1458.225828][   T73]      netdev_get_by_index+0x5e/0x80
[ 1458.225828][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1458.225828][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1458.225828][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1458.225828][   T73]      ipv6_add_addr+0x411/0x2000
[ 1458.225828][   T73]      inet6_addr_add+0x30e/0xa40
[ 1458.225828][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1458.225828][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1458.225828][   T73]      netlink_rcv_skb+0x130/0x360
[ 1458.225828][   T73]      netlink_unicast+0x449/0x710
[ 1458.225828][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1458.225828][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1458.225828][   T73]      ___sys_sendmsg+0xee/0x170
[ 1458.225828][   T73]      __sys_sendmsg+0xcd/0x170
[ 1458.225828][   T73]      do_syscall_64+0xc6/0x1e0
[ 1458.225828][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1458.225828][   T73] 
[ 1458.228298][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1458.228298][   T73]      netdev_get_by_index+0x5e/0x80
[ 1458.228298][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1458.228298][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1458.228298][   T73]      ip6_route_add+0x1c/0x140
[ 1458.228298][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1458.228298][   T73]      addrconf_add_dev+0xe2/0x170
[ 1458.228298][   T73]      inet6_addr_add+0x12f/0xa40
[ 1458.228298][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1458.228298][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1458.228298][   T73]      netlink_rcv_skb+0x130/0x360
[ 1458.228298][   T73]      netlink_unicast+0x449/0x710
[ 1458.228298][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1458.228298][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1458.228298][   T73]      ___sys_sendmsg+0xee/0x170
[ 1458.228298][   T73]      __sys_sendmsg+0xcd/0x170
[ 1458.228298][   T73]      do_syscall_64+0xc6/0x1e0
[ 1458.228298][   T73] 
[ 1458.230396][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1458.230396][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1458.230396][   T73]      ipv6_find_idev+0x102/0x170
[ 1458.230396][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1458.230396][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1458.230396][   T73]      netlink_rcv_skb+0x130/0x360
[ 1458.230396][   T73]      netlink_unicast+0x449/0x710
[ 1458.230396][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1458.230396][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1458.230396][   T73]      ___sys_sendmsg+0xee/0x170
[ 1458.230396][   T73]      __sys_sendmsg+0xcd/0x170
[ 1458.230396][   T73]      do_syscall_64+0xc6/0x1e0
[ 1458.230396][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1458.230396][   T73] 
[ 1458.232054][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1458.232054][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1458.232054][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1458.232054][   T73]      ipv6_find_idev+0x102/0x170
[ 1458.232054][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1458.232054][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1458.232054][   T73]      netlink_rcv_skb+0x130/0x360
[ 1458.232054][   T73]      netlink_unicast+0x449/0x710
[ 1458.232054][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1458.232054][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1458.232054][   T73]      ___sys_sendmsg+0xee/0x170
[ 1458.232054][   T73]      __sys_sendmsg+0xcd/0x170
[ 1458.232054][   T73]      do_syscall_64+0xc6/0x1e0
[ 1458.232054][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1458.232054][   T73] 
[ 1458.233821][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1458.234095][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1458.234095][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1458.234095][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1458.234095][   T73]      fib6_nh_init+0xa22/0x1580
[ 1458.234095][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1458.234095][   T73]      ip6_route_add+0x1c/0x140
[ 1458.234095][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1458.234095][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1458.234095][   T73]      netlink_rcv_skb+0x130/0x360
[ 1458.234095][   T73]      netlink_unicast+0x449/0x710
[ 1458.234095][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1458.234095][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1458.234095][   T73]      ___sys_sendmsg+0xee/0x170
[ 1458.234095][   T73]      __sys_sendmsg+0xcd/0x170
[ 1458.234095][   T73]      do_syscall_64+0xc6/0x1e0
[ 1458.234095][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1458.234095][   T73] 
[ 1458.236246][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1458.236246][   T73]      dst_init+0x84/0x4a0
[ 1458.236246][   T73]      dst_alloc+0x97/0x150
[ 1458.236246][   T73]      ip6_dst_alloc+0x23/0x90
[ 1458.236246][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1458.236246][   T73]      ip6_pol_route+0x56f/0x840
[ 1458.236246][   T73]      fib6_rule_lookup+0x456/0x630
[ 1458.236246][   T73]      ip6_route_input+0x59c/0xa50
[ 1458.236246][   T73]      ipv6_rcv+0x397/0x810
[ 1458.236246][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1458.236246][   T73]      process_backlog+0x101/0x620
[ 1458.236246][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1458.236246][   T73]      net_rx_action+0x495/0xbe0
[ 1458.236246][   T73]      __do_softirq+0x1b5/0x7f6
[ 1458.236246][   T73] 
[ 1458.238212][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1458.238212][   T73]      netdev_get_by_index+0x5e/0x80
[ 1458.238212][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1458.238212][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1458.238212][   T73]      ip6_route_add+0x1c/0x140
[ 1458.238212][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1458.238212][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1458.238212][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1458.238212][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1458.238212][   T73]      netlink_rcv_skb+0x130/0x360
[ 1458.238212][   T73]      netlink_unicast+0x449/0x710
[ 1458.238212][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1458.238212][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1458.238212][   T73]      ___sys_sendmsg+0xee/0x170
[ 1458.238212][   T73]      __sys_sendmsg+0xcd/0x170
[ 1458.238212][   T73]      do_syscall_64+0xc6/0x1e0
[ 1458.238212][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1458.238212][   T73] 
[ 1458.240682][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1458.240682][   T73]      netdev_get_by_index+0x5e/0x80
[ 1458.240682][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1458.240682][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1458.240682][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1458.240682][   T73]      ipv6_add_addr+0x411/0x2000
[ 1458.240682][   T73]      inet6_addr_add+0x30e/0xa40
[ 1458.240682][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1458.240682][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1458.240682][   T73]      netlink_rcv_skb+0x130/0x360
[ 1458.240682][   T73]      netlink_unicast+0x449/0x710
[ 1458.240682][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1458.240682][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1458.240682][   T73]      ___sys_sendmsg+0xee/0x170
[ 1458.240682][   T73]      __sys_sendmsg+0xcd/0x170
[ 1458.240682][   T73]      do_syscall_64+0xc6/0x1e0
[ 1458.240682][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1458.240682][   T73] 
[ 1458.243022][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1458.243022][   T73]      netdev_get_by_index+0x5e/0x80
[ 1458.243022][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1458.243022][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1458.243022][   T73]      ip6_route_add+0x1c/0x140
[ 1458.243022][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1458.243022][   T73]      addrconf_add_dev+0xe2/0x170
[ 1458.243022][   T73]      inet6_addr_add+0x12f/0xa40
[ 1458.243022][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1458.243022][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1458.243022][   T73]      netlink_rcv_skb+0x130/0x360
[ 1458.243022][   T73]      netlink_unicast+0x449/0x710
[ 1458.243022][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1458.243022][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1458.243022][   T73]      ___sys_sendmsg+0xee/0x170
[ 1458.243022][   T73]      __sys_sendmsg+0xcd/0x170
[ 1458.243022][   T73]      do_syscall_64+0xc6/0x1e0
[ 1458.243022][   T73] 
[ 1458.245248][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1458.245248][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1458.245248][   T73]      ipv6_find_idev+0x102/0x170
[ 1458.245248][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1458.245248][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1458.245248][   T73]      netlink_rcv_skb+0x130/0x360
[ 1458.245248][   T73]      netlink_unicast+0x449/0x710
[ 1458.245248][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1458.245248][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1458.245248][   T73]      ___sys_sendmsg+0xee/0x170
[ 1458.245248][   T73]      __sys_sendmsg+0xcd/0x170
[ 1458.245248][   T73]      do_syscall_64+0xc6/0x1e0
[ 1458.245248][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1458.245248][   T73] 
[ 1458.246985][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1458.246985][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1458.246985][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1458.246985][   T73]      ipv6_find_idev+0x102/0x170
[ 1458.246985][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1458.246985][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1458.246985][   T73]      netlink_rcv_skb+0x130/0x360
[ 1458.246985][   T73]      netlink_unicast+0x449/0x710
[ 1458.246985][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1458.246985][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1458.246985][   T73]      ___sys_sendmsg+0xee/0x170
[ 1458.246985][   T73]      __sys_sendmsg+0xcd/0x170
[ 1458.246985][   T73]      do_syscall_64+0xc6/0x1e0
[ 1458.246985][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1458.246985][   T73] 
[ 1458.248877][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1458.249180][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1458.249180][   T73]      netdev_get_by_index+0x5e/0x80
[ 1458.249180][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1458.249180][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1458.249180][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1458.249180][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1458.249180][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1458.249180][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1458.249180][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1458.249180][   T73]      addrconf_dad_begin+0x310/0x670
[ 1458.249180][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1458.249180][   T73]      process_one_work+0x84d/0x18a0
[ 1458.249180][   T73]      worker_thread+0x587/0xd30
[ 1458.249180][   T73]      kthread+0x28a/0x350
[ 1458.249180][   T73]      ret_from_fork+0x31/0x70
[ 1458.249180][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1458.249180][   T73] 
[ 1458.251558][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1458.251558][   T73]      netdev_get_by_index+0x5e/0x80
[ 1458.251558][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1458.251558][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1458.251558][   T73]      ip6_route_add+0x1c/0x140
[ 1458.251558][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1458.251558][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1458.251558][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1458.251558][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1458.251558][   T73]      netlink_rcv_skb+0x130/0x360
[ 1458.251558][   T73]      netlink_unicast+0x449/0x710
[ 1458.251558][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1458.251558][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1458.251558][   T73]      ___sys_sendmsg+0xee/0x170
[ 1458.251558][   T73]      __sys_sendmsg+0xcd/0x170
[ 1458.251558][   T73]      do_syscall_64+0xc6/0x1e0
[ 1458.251558][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1458.251558][   T73] 
[ 1458.253958][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1458.253958][   T73]      netdev_get_by_index+0x5e/0x80
[ 1458.253958][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1458.253958][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1458.253958][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1458.253958][   T73]      ipv6_add_addr+0x411/0x2000
[ 1458.253958][   T73]      inet6_addr_add+0x30e/0xa40
[ 1458.253958][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1458.253958][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1458.253958][   T73]      netlink_rcv_skb+0x130/0x360
[ 1458.253958][   T73]      netlink_unicast+0x449/0x710
[ 1458.253958][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1458.253958][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1458.253958][   T73]      ___sys_sendmsg+0xee/0x170
[ 1458.253958][   T73]      __sys_sendmsg+0xcd/0x170
[ 1458.253958][   T73]      do_syscall_64+0xc6/0x1e0
[ 1458.253958][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1458.253958][   T73] 
[ 1458.256379][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1458.256379][   T73]      netdev_get_by_index+0x5e/0x80
[ 1458.256379][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1458.256379][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1458.256379][   T73]      ip6_route_add+0x1c/0x140
[ 1458.256379][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1458.256379][   T73]      addrconf_add_dev+0xe2/0x170
[ 1458.256379][   T73]      inet6_addr_add+0x12f/0xa40
[ 1458.256379][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1458.256379][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1458.256379][   T73]      netlink_rcv_skb+0x130/0x360
[ 1458.256379][   T73]      netlink_unicast+0x449/0x710
[ 1458.256379][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1458.256379][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1458.256379][   T73]      ___sys_sendmsg+0xee/0x170
[ 1458.256379][   T73]      __sys_sendmsg+0xcd/0x170
[ 1458.256379][   T73]      do_syscall_64+0xc6/0x1e0
[ 1458.256379][   T73] 
[ 1458.258760][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1458.258760][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1458.258760][   T73]      ipv6_find_idev+0x102/0x170
[ 1458.258760][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1458.258760][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1458.258760][   T73]      netlink_rcv_skb+0x130/0x360
[ 1458.258760][   T73]      netlink_unicast+0x449/0x710
[ 1458.258760][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1458.258760][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1458.258760][   T73]      ___sys_sendmsg+0xee/0x170
[ 1458.258760][   T73]      __sys_sendmsg+0xcd/0x170
[ 1458.258760][   T73]      do_syscall_64+0xc6/0x1e0
[ 1458.258760][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1458.258760][   T73] 
[ 1458.260588][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1458.260588][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1458.260588][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1458.260588][   T73]      ipv6_find_idev+0x102/0x170
[ 1458.260588][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1458.260588][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1458.260588][   T73]      netlink_rcv_skb+0x130/0x360
[ 1458.260588][   T73]      netlink_unicast+0x449/0x710
[ 1458.260588][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1458.260588][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1458.260588][   T73]      ___sys_sendmsg+0xee/0x170
[ 1458.260588][   T73]      __sys_sendmsg+0xcd/0x170
[ 1458.260588][   T73]      do_syscall_64+0xc6/0x1e0
[ 1458.260588][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1458.260588][   T73] 
[ 1468.511936][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1468.512430][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1468.512430][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1468.512430][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1468.512430][   T73]      fib6_nh_init+0xa22/0x1580
[ 1468.512430][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1468.512430][   T73]      ip6_route_add+0x1c/0x140
[ 1468.512430][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1468.512430][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1468.512430][   T73]      netlink_rcv_skb+0x130/0x360
[ 1468.512430][   T73]      netlink_unicast+0x449/0x710
[ 1468.512430][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1468.512430][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1468.512430][   T73]      ___sys_sendmsg+0xee/0x170
[ 1468.512430][   T73]      __sys_sendmsg+0xcd/0x170
[ 1468.512430][   T73]      do_syscall_64+0xc6/0x1e0
[ 1468.512430][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1468.512430][   T73] 
[ 1468.514362][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1468.514362][   T73]      dst_init+0x84/0x4a0
[ 1468.514362][   T73]      dst_alloc+0x97/0x150
[ 1468.514362][   T73]      ip6_dst_alloc+0x23/0x90
[ 1468.514362][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1468.514362][   T73]      ip6_pol_route+0x56f/0x840
[ 1468.514362][   T73]      fib6_rule_lookup+0x456/0x630
[ 1468.514362][   T73]      ip6_route_input+0x59c/0xa50
[ 1468.514362][   T73]      ipv6_rcv+0x397/0x810
[ 1468.514362][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1468.514362][   T73]      process_backlog+0x101/0x620
[ 1468.514362][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1468.514362][   T73]      net_rx_action+0x495/0xbe0
[ 1468.514362][   T73]      __do_softirq+0x1b5/0x7f6
[ 1468.514362][   T73] 
[ 1468.516406][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1468.516406][   T73]      netdev_get_by_index+0x5e/0x80
[ 1468.516406][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1468.516406][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1468.516406][   T73]      ip6_route_add+0x1c/0x140
[ 1468.516406][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1468.516406][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1468.516406][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1468.516406][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1468.516406][   T73]      netlink_rcv_skb+0x130/0x360
[ 1468.516406][   T73]      netlink_unicast+0x449/0x710
[ 1468.516406][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1468.516406][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1468.516406][   T73]      ___sys_sendmsg+0xee/0x170
[ 1468.516406][   T73]      __sys_sendmsg+0xcd/0x170
[ 1468.516406][   T73]      do_syscall_64+0xc6/0x1e0
[ 1468.516406][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1468.516406][   T73] 
[ 1468.518448][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1468.518448][   T73]      netdev_get_by_index+0x5e/0x80
[ 1468.518448][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1468.518448][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1468.518448][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1468.518448][   T73]      ipv6_add_addr+0x411/0x2000
[ 1468.518448][   T73]      inet6_addr_add+0x30e/0xa40
[ 1468.518448][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1468.518448][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1468.518448][   T73]      netlink_rcv_skb+0x130/0x360
[ 1468.518448][   T73]      netlink_unicast+0x449/0x710
[ 1468.518448][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1468.518448][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1468.518448][   T73]      ___sys_sendmsg+0xee/0x170
[ 1468.518448][   T73]      __sys_sendmsg+0xcd/0x170
[ 1468.518448][   T73]      do_syscall_64+0xc6/0x1e0
[ 1468.518448][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1468.518448][   T73] 
[ 1468.520465][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1468.520465][   T73]      netdev_get_by_index+0x5e/0x80
[ 1468.520465][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1468.520465][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1468.520465][   T73]      ip6_route_add+0x1c/0x140
[ 1468.520465][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1468.520465][   T73]      addrconf_add_dev+0xe2/0x170
[ 1468.520465][   T73]      inet6_addr_add+0x12f/0xa40
[ 1468.520465][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1468.520465][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1468.520465][   T73]      netlink_rcv_skb+0x130/0x360
[ 1468.520465][   T73]      netlink_unicast+0x449/0x710
[ 1468.520465][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1468.520465][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1468.520465][   T73]      ___sys_sendmsg+0xee/0x170
[ 1468.520465][   T73]      __sys_sendmsg+0xcd/0x170
[ 1468.520465][   T73]      do_syscall_64+0xc6/0x1e0
[ 1468.520465][   T73] 
[ 1468.522452][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1468.522452][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1468.522452][   T73]      ipv6_find_idev+0x102/0x170
[ 1468.522452][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1468.522452][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1468.522452][   T73]      netlink_rcv_skb+0x130/0x360
[ 1468.522452][   T73]      netlink_unicast+0x449/0x710
[ 1468.522452][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1468.522452][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1468.522452][   T73]      ___sys_sendmsg+0xee/0x170
[ 1468.522452][   T73]      __sys_sendmsg+0xcd/0x170
[ 1468.522452][   T73]      do_syscall_64+0xc6/0x1e0
[ 1468.522452][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1468.522452][   T73] 
[ 1468.524015][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1468.524015][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1468.524015][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1468.524015][   T73]      ipv6_find_idev+0x102/0x170
[ 1468.524015][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1468.524015][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1468.524015][   T73]      netlink_rcv_skb+0x130/0x360
[ 1468.524015][   T73]      netlink_unicast+0x449/0x710
[ 1468.524015][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1468.524015][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1468.524015][   T73]      ___sys_sendmsg+0xee/0x170
[ 1468.524015][   T73]      __sys_sendmsg+0xcd/0x170
[ 1468.524015][   T73]      do_syscall_64+0xc6/0x1e0
[ 1468.524015][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1468.524015][   T73] 
[ 1468.525755][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1468.526040][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1468.526040][   T73]      netdev_get_by_index+0x5e/0x80
[ 1468.526040][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1468.526040][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1468.526040][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1468.526040][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1468.526040][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1468.526040][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1468.526040][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1468.526040][   T73]      addrconf_dad_begin+0x310/0x670
[ 1468.526040][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1468.526040][   T73]      process_one_work+0x84d/0x18a0
[ 1468.526040][   T73]      worker_thread+0x587/0xd30
[ 1468.526040][   T73]      kthread+0x28a/0x350
[ 1468.526040][   T73]      ret_from_fork+0x31/0x70
[ 1468.526040][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1468.526040][   T73] 
[ 1468.527970][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1468.527970][   T73]      netdev_get_by_index+0x5e/0x80
[ 1468.527970][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1468.527970][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1468.527970][   T73]      ip6_route_add+0x1c/0x140
[ 1468.527970][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1468.527970][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1468.527970][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1468.527970][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1468.527970][   T73]      netlink_rcv_skb+0x130/0x360
[ 1468.527970][   T73]      netlink_unicast+0x449/0x710
[ 1468.527970][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1468.527970][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1468.527970][   T73]      ___sys_sendmsg+0xee/0x170
[ 1468.527970][   T73]      __sys_sendmsg+0xcd/0x170
[ 1468.527970][   T73]      do_syscall_64+0xc6/0x1e0
[ 1468.527970][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1468.527970][   T73] 
[ 1468.529990][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1468.529990][   T73]      netdev_get_by_index+0x5e/0x80
[ 1468.529990][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1468.529990][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1468.529990][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1468.529990][   T73]      ipv6_add_addr+0x411/0x2000
[ 1468.529990][   T73]      inet6_addr_add+0x30e/0xa40
[ 1468.529990][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1468.529990][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1468.529990][   T73]      netlink_rcv_skb+0x130/0x360
[ 1468.529990][   T73]      netlink_unicast+0x449/0x710
[ 1468.529990][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1468.529990][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1468.529990][   T73]      ___sys_sendmsg+0xee/0x170
[ 1468.529990][   T73]      __sys_sendmsg+0xcd/0x170
[ 1468.529990][   T73]      do_syscall_64+0xc6/0x1e0
[ 1468.529990][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1468.529990][   T73] 
[ 1468.532006][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1468.532006][   T73]      netdev_get_by_index+0x5e/0x80
[ 1468.532006][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1468.532006][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1468.532006][   T73]      ip6_route_add+0x1c/0x140
[ 1468.532006][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1468.532006][   T73]      addrconf_add_dev+0xe2/0x170
[ 1468.532006][   T73]      inet6_addr_add+0x12f/0xa40
[ 1468.532006][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1468.532006][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1468.532006][   T73]      netlink_rcv_skb+0x130/0x360
[ 1468.532006][   T73]      netlink_unicast+0x449/0x710
[ 1468.532006][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1468.532006][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1468.532006][   T73]      ___sys_sendmsg+0xee/0x170
[ 1468.532006][   T73]      __sys_sendmsg+0xcd/0x170
[ 1468.532006][   T73]      do_syscall_64+0xc6/0x1e0
[ 1468.532006][   T73] 
[ 1468.533978][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1468.533978][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1468.533978][   T73]      ipv6_find_idev+0x102/0x170
[ 1468.533978][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1468.533978][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1468.533978][   T73]      netlink_rcv_skb+0x130/0x360
[ 1468.533978][   T73]      netlink_unicast+0x449/0x710
[ 1468.533978][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1468.533978][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1468.533978][   T73]      ___sys_sendmsg+0xee/0x170
[ 1468.533978][   T73]      __sys_sendmsg+0xcd/0x170
[ 1468.533978][   T73]      do_syscall_64+0xc6/0x1e0
[ 1468.533978][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1468.533978][   T73] 
[ 1468.535534][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1468.535534][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1468.535534][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1468.535534][   T73]      ipv6_find_idev+0x102/0x170
[ 1468.535534][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1468.535534][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1468.535534][   T73]      netlink_rcv_skb+0x130/0x360
[ 1468.535534][   T73]      netlink_unicast+0x449/0x710
[ 1468.535534][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1468.535534][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1468.535534][   T73]      ___sys_sendmsg+0xee/0x170
[ 1468.535534][   T73]      __sys_sendmsg+0xcd/0x170
[ 1468.535534][   T73]      do_syscall_64+0xc6/0x1e0
[ 1468.535534][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1468.535534][   T73] 
[ 1468.537225][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1468.537509][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1468.537509][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1468.537509][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1468.537509][   T73]      fib6_nh_init+0xa22/0x1580
[ 1468.537509][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1468.537509][   T73]      ip6_route_add+0x1c/0x140
[ 1468.537509][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1468.537509][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1468.537509][   T73]      netlink_rcv_skb+0x130/0x360
[ 1468.537509][   T73]      netlink_unicast+0x449/0x710
[ 1468.537509][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1468.537509][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1468.537509][   T73]      ___sys_sendmsg+0xee/0x170
[ 1468.537509][   T73]      __sys_sendmsg+0xcd/0x170
[ 1468.537509][   T73]      do_syscall_64+0xc6/0x1e0
[ 1468.537509][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1468.537509][   T73] 
[ 1468.539598][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1468.539598][   T73]      dst_init+0x84/0x4a0
[ 1468.539598][   T73]      dst_alloc+0x97/0x150
[ 1468.539598][   T73]      ip6_dst_alloc+0x23/0x90
[ 1468.539598][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1468.539598][   T73]      ip6_pol_route+0x56f/0x840
[ 1468.539598][   T73]      fib6_rule_lookup+0x456/0x630
[ 1468.539598][   T73]      ip6_route_input+0x59c/0xa50
[ 1468.539598][   T73]      ipv6_rcv+0x397/0x810
[ 1468.539598][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1468.539598][   T73]      process_backlog+0x101/0x620
[ 1468.539598][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1468.539598][   T73]      net_rx_action+0x495/0xbe0
[ 1468.539598][   T73]      __do_softirq+0x1b5/0x7f6
[ 1468.539598][   T73] 
[ 1468.541420][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1468.541420][   T73]      netdev_get_by_index+0x5e/0x80
[ 1468.541420][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1468.541420][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1468.541420][   T73]      ip6_route_add+0x1c/0x140
[ 1468.541420][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1468.541420][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1468.541420][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1468.541420][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1468.541420][   T73]      netlink_rcv_skb+0x130/0x360
[ 1468.541420][   T73]      netlink_unicast+0x449/0x710
[ 1468.541420][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1468.541420][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1468.541420][   T73]      ___sys_sendmsg+0xee/0x170
[ 1468.541420][   T73]      __sys_sendmsg+0xcd/0x170
[ 1468.541420][   T73]      do_syscall_64+0xc6/0x1e0
[ 1468.541420][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1468.541420][   T73] 
[ 1468.543678][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1468.543678][   T73]      netdev_get_by_index+0x5e/0x80
[ 1468.543678][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1468.543678][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1468.543678][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1468.543678][   T73]      ipv6_add_addr+0x411/0x2000
[ 1468.543678][   T73]      inet6_addr_add+0x30e/0xa40
[ 1468.543678][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1468.543678][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1468.543678][   T73]      netlink_rcv_skb+0x130/0x360
[ 1468.543678][   T73]      netlink_unicast+0x449/0x710
[ 1468.543678][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1468.543678][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1468.543678][   T73]      ___sys_sendmsg+0xee/0x170
[ 1468.543678][   T73]      __sys_sendmsg+0xcd/0x170
[ 1468.543678][   T73]      do_syscall_64+0xc6/0x1e0
[ 1468.543678][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1468.543678][   T73] 
[ 1468.545930][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1468.545930][   T73]      netdev_get_by_index+0x5e/0x80
[ 1468.545930][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1468.545930][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1468.545930][   T73]      ip6_route_add+0x1c/0x140
[ 1468.545930][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1468.545930][   T73]      addrconf_add_dev+0xe2/0x170
[ 1468.545930][   T73]      inet6_addr_add+0x12f/0xa40
[ 1468.545930][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1468.545930][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1468.545930][   T73]      netlink_rcv_skb+0x130/0x360
[ 1468.545930][   T73]      netlink_unicast+0x449/0x710
[ 1468.545930][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1468.545930][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1468.545930][   T73]      ___sys_sendmsg+0xee/0x170
[ 1468.545930][   T73]      __sys_sendmsg+0xcd/0x170
[ 1468.545930][   T73]      do_syscall_64+0xc6/0x1e0
[ 1468.545930][   T73] 
[ 1468.548123][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1468.548123][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1468.548123][   T73]      ipv6_find_idev+0x102/0x170
[ 1468.548123][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1468.548123][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1468.548123][   T73]      netlink_rcv_skb+0x130/0x360
[ 1468.548123][   T73]      netlink_unicast+0x449/0x710
[ 1468.548123][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1468.548123][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1468.548123][   T73]      ___sys_sendmsg+0xee/0x170
[ 1468.548123][   T73]      __sys_sendmsg+0xcd/0x170
[ 1468.548123][   T73]      do_syscall_64+0xc6/0x1e0
[ 1468.548123][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1468.548123][   T73] 
[ 1468.549912][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1468.549912][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1468.549912][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1468.549912][   T73]      ipv6_find_idev+0x102/0x170
[ 1468.549912][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1468.549912][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1468.549912][   T73]      netlink_rcv_skb+0x130/0x360
[ 1468.549912][   T73]      netlink_unicast+0x449/0x710
[ 1468.549912][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1468.549912][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1468.549912][   T73]      ___sys_sendmsg+0xee/0x170
[ 1468.549912][   T73]      __sys_sendmsg+0xcd/0x170
[ 1468.549912][   T73]      do_syscall_64+0xc6/0x1e0
[ 1468.549912][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1468.549912][   T73] 
[ 1468.551797][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1468.552134][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1468.552134][   T73]      netdev_get_by_index+0x5e/0x80
[ 1468.552134][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1468.552134][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1468.552134][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1468.552134][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1468.552134][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1468.552134][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1468.552134][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1468.552134][   T73]      addrconf_dad_begin+0x310/0x670
[ 1468.552134][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1468.552134][   T73]      process_one_work+0x84d/0x18a0
[ 1468.552134][   T73]      worker_thread+0x587/0xd30
[ 1468.552134][   T73]      kthread+0x28a/0x350
[ 1468.552134][   T73]      ret_from_fork+0x31/0x70
[ 1468.552134][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1468.552134][   T73] 
[ 1468.554241][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1468.554241][   T73]      netdev_get_by_index+0x5e/0x80
[ 1468.554241][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1468.554241][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1468.554241][   T73]      ip6_route_add+0x1c/0x140
[ 1468.554241][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1468.554241][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1468.554241][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1468.554241][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1468.554241][   T73]      netlink_rcv_skb+0x130/0x360
[ 1468.554241][   T73]      netlink_unicast+0x449/0x710
[ 1468.554241][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1468.554241][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1468.554241][   T73]      ___sys_sendmsg+0xee/0x170
[ 1468.554241][   T73]      __sys_sendmsg+0xcd/0x170
[ 1468.554241][   T73]      do_syscall_64+0xc6/0x1e0
[ 1468.554241][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1468.554241][   T73] 
[ 1468.556497][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1468.556497][   T73]      netdev_get_by_index+0x5e/0x80
[ 1468.556497][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1468.556497][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1468.556497][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1468.556497][   T73]      ipv6_add_addr+0x411/0x2000
[ 1468.556497][   T73]      inet6_addr_add+0x30e/0xa40
[ 1468.556497][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1468.556497][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1468.556497][   T73]      netlink_rcv_skb+0x130/0x360
[ 1468.556497][   T73]      netlink_unicast+0x449/0x710
[ 1468.556497][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1468.556497][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1468.556497][   T73]      ___sys_sendmsg+0xee/0x170
[ 1468.556497][   T73]      __sys_sendmsg+0xcd/0x170
[ 1468.556497][   T73]      do_syscall_64+0xc6/0x1e0
[ 1468.556497][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1468.556497][   T73] 
[ 1468.558818][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1468.558818][   T73]      netdev_get_by_index+0x5e/0x80
[ 1468.558818][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1468.558818][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1468.558818][   T73]      ip6_route_add+0x1c/0x140
[ 1468.558818][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1468.558818][   T73]      addrconf_add_dev+0xe2/0x170
[ 1468.558818][   T73]      inet6_addr_add+0x12f/0xa40
[ 1468.558818][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1468.558818][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1468.558818][   T73]      netlink_rcv_skb+0x130/0x360
[ 1468.558818][   T73]      netlink_unicast+0x449/0x710
[ 1468.558818][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1468.558818][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1468.558818][   T73]      ___sys_sendmsg+0xee/0x170
[ 1468.558818][   T73]      __sys_sendmsg+0xcd/0x170
[ 1468.558818][   T73]      do_syscall_64+0xc6/0x1e0
[ 1468.558818][   T73] 
[ 1468.561030][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1468.561030][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1468.561030][   T73]      ipv6_find_idev+0x102/0x170
[ 1468.561030][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1468.561030][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1468.561030][   T73]      netlink_rcv_skb+0x130/0x360
[ 1468.561030][   T73]      netlink_unicast+0x449/0x710
[ 1468.561030][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1468.561030][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1468.561030][   T73]      ___sys_sendmsg+0xee/0x170
[ 1468.561030][   T73]      __sys_sendmsg+0xcd/0x170
[ 1468.561030][   T73]      do_syscall_64+0xc6/0x1e0
[ 1468.561030][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1468.561030][   T73] 
[ 1468.562758][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1468.562758][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1468.562758][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1468.562758][   T73]      ipv6_find_idev+0x102/0x170
[ 1468.562758][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1468.562758][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1468.562758][   T73]      netlink_rcv_skb+0x130/0x360
[ 1468.562758][   T73]      netlink_unicast+0x449/0x710
[ 1468.562758][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1468.562758][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1468.562758][   T73]      ___sys_sendmsg+0xee/0x170
[ 1468.562758][   T73]      __sys_sendmsg+0xcd/0x170
[ 1468.562758][   T73]      do_syscall_64+0xc6/0x1e0
[ 1468.562758][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1468.562758][   T73] 
[ 1475.879805][   T42] INFO: task modprobe:885 blocked for more than 1228 seconds.
[ 1475.880128][   T42]       Not tainted 6.8.0-virtme #1
[ 1475.880301][   T42] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1475.880538][   T42] task:modprobe        state:D stack:25856 pid:885   tgid:885   ppid:39     flags:0x00004002
[ 1475.880870][   T42] Call Trace:
[ 1475.880980][   T42]  <TASK>
[ 1475.881066][   T42]  __schedule+0x705/0x1ac0
[ 1475.881256][   T42]  ? __pfx___schedule+0x10/0x10
[ 1475.881401][   T42]  ? schedule+0x1a5/0x210
[ 1475.881514][   T42]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1475.881724][   T42]  ? mark_lock+0x38/0x3e0
[ 1475.881833][   T42]  ? do_raw_spin_lock+0x131/0x270
[ 1475.881993][   T42]  ? schedule+0x1a5/0x210
[ 1475.882117][   T42]  schedule+0xdf/0x210
[ 1475.882226][   T42]  schedule_preempt_disabled+0x15/0x30
[ 1475.882376][   T42]  rwsem_down_write_slowpath+0x3af/0xab0
[ 1475.882527][   T42]  ? __pfx_rwsem_down_write_slowpath+0x10/0x10
[ 1475.882753][   T42]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1475.882902][   T42]  ? lock_acquire+0x1c1/0x220
[ 1475.883064][   T42]  ? register_pernet_subsys+0x1a/0x50
[ 1475.883226][   T42]  down_write+0x1c9/0x200
[ 1475.883380][   T42]  ? __pfx_down_write+0x10/0x10
[ 1475.883542][   T42]  ? __lock_release+0x103/0x460
[ 1475.883697][   T42]  ? __create_object+0x5e/0xb0
[ 1475.883860][   T42]  ? __pfx___lock_release+0x10/0x10
[ 1475.884006][   T42]  register_pernet_subsys+0x1a/0x50
[ 1475.884172][   T42]  tcf_register_action+0xa3/0x600
[ 1475.884320][   T42]  ? __pfx_pedit_init_module+0x10/0x10 [act_pedit]
[ 1475.884526][   T42]  do_one_initcall+0xc8/0x3f0
[ 1475.884722][   T42]  ? __pfx_do_one_initcall+0x10/0x10
[ 1475.884874][   T42]  ? __create_object+0x5e/0xb0
[ 1475.885019][   T42]  ? kasan_unpoison+0x27/0x60
[ 1475.885167][   T42]  do_init_module+0x233/0x740
[ 1475.885318][   T42]  load_module+0x16b5/0x2350
[ 1475.885475][   T42]  ? __pfx_load_module+0x10/0x10
[ 1475.885662][   T42]  ? kernel_read_file+0x3d2/0x520
[ 1475.885809][   T42]  ? kernel_read_file+0x300/0x520
[ 1475.885952][   T42]  ? __pfx_kernel_read_file+0x10/0x10
[ 1475.886130][   T42]  ? init_module_from_file+0xd2/0x130
[ 1475.886271][   T42]  init_module_from_file+0xd2/0x130
[ 1475.886426][   T42]  ? __pfx_init_module_from_file+0x10/0x10
[ 1475.886627][   T42]  ? __lock_release+0x103/0x460
[ 1475.886785][   T42]  ? idempotent_init_module+0x32a/0x620
[ 1475.886961][   T42]  ? idempotent_init_module+0x32a/0x620
[ 1475.887104][   T42]  ? do_raw_spin_unlock+0x58/0x220
[ 1475.887261][   T42]  idempotent_init_module+0x342/0x620
[ 1475.887450][   T42]  ? __pfx_idempotent_init_module+0x10/0x10
[ 1475.887691][   T42]  __x64_sys_finit_module+0xbe/0x130
[ 1475.887821][   T42]  do_syscall_64+0xc6/0x1e0
[ 1475.887953][   T42]  entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1475.888126][   T42] RIP: 0033:0x7f505b1e4e5d
[ 1475.888257][   T42] RSP: 002b:00007ffe4f186f28 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[ 1475.888450][   T42] RAX: ffffffffffffffda RBX: 000055ce7b6ccc80 RCX: 00007f505b1e4e5d
[ 1475.888667][   T42] RDX: 0000000000000000 RSI: 000055ce5e14da2a RDI: 0000000000000000
[ 1475.888854][   T42] RBP: 0000000000040000 R08: 0000000000000000 R09: 00007ffe4f187060
[ 1475.889039][   T42] R10: 0000000000000000 R11: 0000000000000246 R12: 000055ce5e14da2a
[ 1475.889225][   T42] R13: 000055ce7b6ccac0 R14: 000055ce7b6cd0b0 R15: 000055ce7b6cccf2
[ 1475.889429][   T42]  </TASK>
[ 1475.889530][   T42] Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings
[ 1475.889747][   T42] 
[ 1475.889747][   T42] Showing all locks held in the system:
[ 1475.889927][   T42] 2 locks held by kworker/u20:0/39:
[ 1475.890050][   T42]  #0: ffff888001161d48 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0
[ 1475.890312][   T42]  #1: ffffc900002c7da0 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0
[ 1475.890589][   T42] 1 lock held by khungtaskd/42:
[ 1475.890718][   T42]  #0: ffffffffaf7591e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x350
[ 1475.890948][   T42] 3 locks held by kworker/u16:1/73:
[ 1475.891068][   T42]  #0: ffff88800190a948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0xfae/0x18a0
[ 1475.891319][   T42]  #1: ffffc900004efda0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x7cd/0x18a0
[ 1475.891541][   T42]  #2: ffffffffaff6a1d0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xbc/0xb60
[ 1475.891778][   T42] 1 lock held by modprobe/885:
[ 1475.891900][   T42]  #0: ffffffffaff6a1d0 (pernet_ops_rwsem){++++}-{3:3}, at: register_pernet_subsys+0x1a/0x50
[ 1475.892148][   T42] 
[ 1475.892212][   T42] =============================================
[ 1475.892212][   T42] 
[ 1478.639759][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1478.640272][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1478.640272][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1478.640272][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1478.640272][   T73]      fib6_nh_init+0xa22/0x1580
[ 1478.640272][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1478.640272][   T73]      ip6_route_add+0x1c/0x140
[ 1478.640272][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1478.640272][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1478.640272][   T73]      netlink_rcv_skb+0x130/0x360
[ 1478.640272][   T73]      netlink_unicast+0x449/0x710
[ 1478.640272][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1478.640272][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1478.640272][   T73]      ___sys_sendmsg+0xee/0x170
[ 1478.640272][   T73]      __sys_sendmsg+0xcd/0x170
[ 1478.640272][   T73]      do_syscall_64+0xc6/0x1e0
[ 1478.640272][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1478.640272][   T73] 
[ 1478.642370][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1478.642370][   T73]      dst_init+0x84/0x4a0
[ 1478.642370][   T73]      dst_alloc+0x97/0x150
[ 1478.642370][   T73]      ip6_dst_alloc+0x23/0x90
[ 1478.642370][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1478.642370][   T73]      ip6_pol_route+0x56f/0x840
[ 1478.642370][   T73]      fib6_rule_lookup+0x456/0x630
[ 1478.642370][   T73]      ip6_route_input+0x59c/0xa50
[ 1478.642370][   T73]      ipv6_rcv+0x397/0x810
[ 1478.642370][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1478.642370][   T73]      process_backlog+0x101/0x620
[ 1478.642370][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1478.642370][   T73]      net_rx_action+0x495/0xbe0
[ 1478.642370][   T73]      __do_softirq+0x1b5/0x7f6
[ 1478.642370][   T73] 
[ 1478.644184][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1478.644184][   T73]      netdev_get_by_index+0x5e/0x80
[ 1478.644184][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1478.644184][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1478.644184][   T73]      ip6_route_add+0x1c/0x140
[ 1478.644184][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1478.644184][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1478.644184][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1478.644184][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1478.644184][   T73]      netlink_rcv_skb+0x130/0x360
[ 1478.644184][   T73]      netlink_unicast+0x449/0x710
[ 1478.644184][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1478.644184][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1478.644184][   T73]      ___sys_sendmsg+0xee/0x170
[ 1478.644184][   T73]      __sys_sendmsg+0xcd/0x170
[ 1478.644184][   T73]      do_syscall_64+0xc6/0x1e0
[ 1478.644184][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1478.644184][   T73] 
[ 1478.646458][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1478.646458][   T73]      netdev_get_by_index+0x5e/0x80
[ 1478.646458][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1478.646458][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1478.646458][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1478.646458][   T73]      ipv6_add_addr+0x411/0x2000
[ 1478.646458][   T73]      inet6_addr_add+0x30e/0xa40
[ 1478.646458][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1478.646458][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1478.646458][   T73]      netlink_rcv_skb+0x130/0x360
[ 1478.646458][   T73]      netlink_unicast+0x449/0x710
[ 1478.646458][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1478.646458][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1478.646458][   T73]      ___sys_sendmsg+0xee/0x170
[ 1478.646458][   T73]      __sys_sendmsg+0xcd/0x170
[ 1478.646458][   T73]      do_syscall_64+0xc6/0x1e0
[ 1478.646458][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1478.646458][   T73] 
[ 1478.648489][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1478.648489][   T73]      netdev_get_by_index+0x5e/0x80
[ 1478.648489][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1478.648489][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1478.648489][   T73]      ip6_route_add+0x1c/0x140
[ 1478.648489][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1478.648489][   T73]      addrconf_add_dev+0xe2/0x170
[ 1478.648489][   T73]      inet6_addr_add+0x12f/0xa40
[ 1478.648489][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1478.648489][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1478.648489][   T73]      netlink_rcv_skb+0x130/0x360
[ 1478.648489][   T73]      netlink_unicast+0x449/0x710
[ 1478.648489][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1478.648489][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1478.648489][   T73]      ___sys_sendmsg+0xee/0x170
[ 1478.648489][   T73]      __sys_sendmsg+0xcd/0x170
[ 1478.648489][   T73]      do_syscall_64+0xc6/0x1e0
[ 1478.648489][   T73] 
[ 1478.650468][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1478.650468][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1478.650468][   T73]      ipv6_find_idev+0x102/0x170
[ 1478.650468][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1478.650468][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1478.650468][   T73]      netlink_rcv_skb+0x130/0x360
[ 1478.650468][   T73]      netlink_unicast+0x449/0x710
[ 1478.650468][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1478.650468][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1478.650468][   T73]      ___sys_sendmsg+0xee/0x170
[ 1478.650468][   T73]      __sys_sendmsg+0xcd/0x170
[ 1478.650468][   T73]      do_syscall_64+0xc6/0x1e0
[ 1478.650468][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1478.650468][   T73] 
[ 1478.652023][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1478.652023][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1478.652023][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1478.652023][   T73]      ipv6_find_idev+0x102/0x170
[ 1478.652023][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1478.652023][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1478.652023][   T73]      netlink_rcv_skb+0x130/0x360
[ 1478.652023][   T73]      netlink_unicast+0x449/0x710
[ 1478.652023][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1478.652023][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1478.652023][   T73]      ___sys_sendmsg+0xee/0x170
[ 1478.652023][   T73]      __sys_sendmsg+0xcd/0x170
[ 1478.652023][   T73]      do_syscall_64+0xc6/0x1e0
[ 1478.652023][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1478.652023][   T73] 
[ 1478.653738][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1478.654021][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1478.654021][   T73]      netdev_get_by_index+0x5e/0x80
[ 1478.654021][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1478.654021][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1478.654021][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1478.654021][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1478.654021][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1478.654021][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1478.654021][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1478.654021][   T73]      addrconf_dad_begin+0x310/0x670
[ 1478.654021][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1478.654021][   T73]      process_one_work+0x84d/0x18a0
[ 1478.654021][   T73]      worker_thread+0x587/0xd30
[ 1478.654021][   T73]      kthread+0x28a/0x350
[ 1478.654021][   T73]      ret_from_fork+0x31/0x70
[ 1478.654021][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1478.654021][   T73] 
[ 1478.655951][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1478.655951][   T73]      netdev_get_by_index+0x5e/0x80
[ 1478.655951][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1478.655951][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1478.655951][   T73]      ip6_route_add+0x1c/0x140
[ 1478.655951][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1478.655951][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1478.655951][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1478.655951][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1478.655951][   T73]      netlink_rcv_skb+0x130/0x360
[ 1478.655951][   T73]      netlink_unicast+0x449/0x710
[ 1478.655951][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1478.655951][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1478.655951][   T73]      ___sys_sendmsg+0xee/0x170
[ 1478.655951][   T73]      __sys_sendmsg+0xcd/0x170
[ 1478.655951][   T73]      do_syscall_64+0xc6/0x1e0
[ 1478.655951][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1478.655951][   T73] 
[ 1478.657971][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1478.657971][   T73]      netdev_get_by_index+0x5e/0x80
[ 1478.657971][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1478.657971][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1478.657971][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1478.657971][   T73]      ipv6_add_addr+0x411/0x2000
[ 1478.657971][   T73]      inet6_addr_add+0x30e/0xa40
[ 1478.657971][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1478.657971][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1478.657971][   T73]      netlink_rcv_skb+0x130/0x360
[ 1478.657971][   T73]      netlink_unicast+0x449/0x710
[ 1478.657971][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1478.657971][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1478.657971][   T73]      ___sys_sendmsg+0xee/0x170
[ 1478.657971][   T73]      __sys_sendmsg+0xcd/0x170
[ 1478.657971][   T73]      do_syscall_64+0xc6/0x1e0
[ 1478.657971][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1478.657971][   T73] 
[ 1478.660528][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1478.660528][   T73]      netdev_get_by_index+0x5e/0x80
[ 1478.660528][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1478.660528][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1478.660528][   T73]      ip6_route_add+0x1c/0x140
[ 1478.660528][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1478.660528][   T73]      addrconf_add_dev+0xe2/0x170
[ 1478.660528][   T73]      inet6_addr_add+0x12f/0xa40
[ 1478.660528][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1478.660528][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1478.660528][   T73]      netlink_rcv_skb+0x130/0x360
[ 1478.660528][   T73]      netlink_unicast+0x449/0x710
[ 1478.660528][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1478.660528][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1478.660528][   T73]      ___sys_sendmsg+0xee/0x170
[ 1478.660528][   T73]      __sys_sendmsg+0xcd/0x170
[ 1478.660528][   T73]      do_syscall_64+0xc6/0x1e0
[ 1478.660528][   T73] 
[ 1478.662510][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1478.662510][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1478.662510][   T73]      ipv6_find_idev+0x102/0x170
[ 1478.662510][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1478.662510][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1478.662510][   T73]      netlink_rcv_skb+0x130/0x360
[ 1478.662510][   T73]      netlink_unicast+0x449/0x710
[ 1478.662510][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1478.662510][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1478.662510][   T73]      ___sys_sendmsg+0xee/0x170
[ 1478.662510][   T73]      __sys_sendmsg+0xcd/0x170
[ 1478.662510][   T73]      do_syscall_64+0xc6/0x1e0
[ 1478.662510][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1478.662510][   T73] 
[ 1478.664066][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1478.664066][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1478.664066][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1478.664066][   T73]      ipv6_find_idev+0x102/0x170
[ 1478.664066][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1478.664066][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1478.664066][   T73]      netlink_rcv_skb+0x130/0x360
[ 1478.664066][   T73]      netlink_unicast+0x449/0x710
[ 1478.664066][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1478.664066][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1478.664066][   T73]      ___sys_sendmsg+0xee/0x170
[ 1478.664066][   T73]      __sys_sendmsg+0xcd/0x170
[ 1478.664066][   T73]      do_syscall_64+0xc6/0x1e0
[ 1478.664066][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1478.664066][   T73] 
[ 1478.666147][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1478.666423][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1478.666423][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1478.666423][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1478.666423][   T73]      fib6_nh_init+0xa22/0x1580
[ 1478.666423][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1478.666423][   T73]      ip6_route_add+0x1c/0x140
[ 1478.666423][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1478.666423][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1478.666423][   T73]      netlink_rcv_skb+0x130/0x360
[ 1478.666423][   T73]      netlink_unicast+0x449/0x710
[ 1478.666423][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1478.666423][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1478.666423][   T73]      ___sys_sendmsg+0xee/0x170
[ 1478.666423][   T73]      __sys_sendmsg+0xcd/0x170
[ 1478.666423][   T73]      do_syscall_64+0xc6/0x1e0
[ 1478.666423][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1478.666423][   T73] 
[ 1478.668511][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1478.668511][   T73]      dst_init+0x84/0x4a0
[ 1478.668511][   T73]      dst_alloc+0x97/0x150
[ 1478.668511][   T73]      ip6_dst_alloc+0x23/0x90
[ 1478.668511][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1478.668511][   T73]      ip6_pol_route+0x56f/0x840
[ 1478.668511][   T73]      fib6_rule_lookup+0x456/0x630
[ 1478.668511][   T73]      ip6_route_input+0x59c/0xa50
[ 1478.668511][   T73]      ipv6_rcv+0x397/0x810
[ 1478.668511][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1478.668511][   T73]      process_backlog+0x101/0x620
[ 1478.668511][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1478.668511][   T73]      net_rx_action+0x495/0xbe0
[ 1478.668511][   T73]      __do_softirq+0x1b5/0x7f6
[ 1478.668511][   T73] 
[ 1478.670348][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1478.670348][   T73]      netdev_get_by_index+0x5e/0x80
[ 1478.670348][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1478.670348][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1478.670348][   T73]      ip6_route_add+0x1c/0x140
[ 1478.670348][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1478.670348][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1478.670348][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1478.670348][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1478.670348][   T73]      netlink_rcv_skb+0x130/0x360
[ 1478.670348][   T73]      netlink_unicast+0x449/0x710
[ 1478.670348][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1478.670348][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1478.670348][   T73]      ___sys_sendmsg+0xee/0x170
[ 1478.670348][   T73]      __sys_sendmsg+0xcd/0x170
[ 1478.670348][   T73]      do_syscall_64+0xc6/0x1e0
[ 1478.670348][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1478.670348][   T73] 
[ 1478.672543][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1478.672543][   T73]      netdev_get_by_index+0x5e/0x80
[ 1478.672543][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1478.672543][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1478.672543][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1478.672543][   T73]      ipv6_add_addr+0x411/0x2000
[ 1478.672543][   T73]      inet6_addr_add+0x30e/0xa40
[ 1478.672543][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1478.672543][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1478.672543][   T73]      netlink_rcv_skb+0x130/0x360
[ 1478.672543][   T73]      netlink_unicast+0x449/0x710
[ 1478.672543][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1478.672543][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1478.672543][   T73]      ___sys_sendmsg+0xee/0x170
[ 1478.672543][   T73]      __sys_sendmsg+0xcd/0x170
[ 1478.672543][   T73]      do_syscall_64+0xc6/0x1e0
[ 1478.672543][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1478.672543][   T73] 
[ 1478.674876][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1478.674876][   T73]      netdev_get_by_index+0x5e/0x80
[ 1478.674876][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1478.674876][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1478.674876][   T73]      ip6_route_add+0x1c/0x140
[ 1478.674876][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1478.674876][   T73]      addrconf_add_dev+0xe2/0x170
[ 1478.674876][   T73]      inet6_addr_add+0x12f/0xa40
[ 1478.674876][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1478.674876][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1478.674876][   T73]      netlink_rcv_skb+0x130/0x360
[ 1478.674876][   T73]      netlink_unicast+0x449/0x710
[ 1478.674876][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1478.674876][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1478.674876][   T73]      ___sys_sendmsg+0xee/0x170
[ 1478.674876][   T73]      __sys_sendmsg+0xcd/0x170
[ 1478.674876][   T73]      do_syscall_64+0xc6/0x1e0
[ 1478.674876][   T73] 
[ 1478.677100][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1478.677100][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1478.677100][   T73]      ipv6_find_idev+0x102/0x170
[ 1478.677100][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1478.677100][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1478.677100][   T73]      netlink_rcv_skb+0x130/0x360
[ 1478.677100][   T73]      netlink_unicast+0x449/0x710
[ 1478.677100][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1478.677100][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1478.677100][   T73]      ___sys_sendmsg+0xee/0x170
[ 1478.677100][   T73]      __sys_sendmsg+0xcd/0x170
[ 1478.677100][   T73]      do_syscall_64+0xc6/0x1e0
[ 1478.677100][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1478.677100][   T73] 
[ 1478.678839][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1478.678839][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1478.678839][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1478.678839][   T73]      ipv6_find_idev+0x102/0x170
[ 1478.678839][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1478.678839][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1478.678839][   T73]      netlink_rcv_skb+0x130/0x360
[ 1478.678839][   T73]      netlink_unicast+0x449/0x710
[ 1478.678839][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1478.678839][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1478.678839][   T73]      ___sys_sendmsg+0xee/0x170
[ 1478.678839][   T73]      __sys_sendmsg+0xcd/0x170
[ 1478.678839][   T73]      do_syscall_64+0xc6/0x1e0
[ 1478.678839][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1478.678839][   T73] 
[ 1478.680716][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1478.681051][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1478.681051][   T73]      netdev_get_by_index+0x5e/0x80
[ 1478.681051][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1478.681051][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1478.681051][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1478.681051][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1478.681051][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1478.681051][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1478.681051][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1478.681051][   T73]      addrconf_dad_begin+0x310/0x670
[ 1478.681051][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1478.681051][   T73]      process_one_work+0x84d/0x18a0
[ 1478.681051][   T73]      worker_thread+0x587/0xd30
[ 1478.681051][   T73]      kthread+0x28a/0x350
[ 1478.681051][   T73]      ret_from_fork+0x31/0x70
[ 1478.681051][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1478.681051][   T73] 
[ 1478.683228][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1478.683228][   T73]      netdev_get_by_index+0x5e/0x80
[ 1478.683228][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1478.683228][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1478.683228][   T73]      ip6_route_add+0x1c/0x140
[ 1478.683228][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1478.683228][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1478.683228][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1478.683228][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1478.683228][   T73]      netlink_rcv_skb+0x130/0x360
[ 1478.683228][   T73]      netlink_unicast+0x449/0x710
[ 1478.683228][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1478.683228][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1478.683228][   T73]      ___sys_sendmsg+0xee/0x170
[ 1478.683228][   T73]      __sys_sendmsg+0xcd/0x170
[ 1478.683228][   T73]      do_syscall_64+0xc6/0x1e0
[ 1478.683228][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1478.683228][   T73] 
[ 1478.685482][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1478.685482][   T73]      netdev_get_by_index+0x5e/0x80
[ 1478.685482][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1478.685482][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1478.685482][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1478.685482][   T73]      ipv6_add_addr+0x411/0x2000
[ 1478.685482][   T73]      inet6_addr_add+0x30e/0xa40
[ 1478.685482][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1478.685482][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1478.685482][   T73]      netlink_rcv_skb+0x130/0x360
[ 1478.685482][   T73]      netlink_unicast+0x449/0x710
[ 1478.685482][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1478.685482][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1478.685482][   T73]      ___sys_sendmsg+0xee/0x170
[ 1478.685482][   T73]      __sys_sendmsg+0xcd/0x170
[ 1478.685482][   T73]      do_syscall_64+0xc6/0x1e0
[ 1478.685482][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1478.685482][   T73] 
[ 1478.687741][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1478.687741][   T73]      netdev_get_by_index+0x5e/0x80
[ 1478.687741][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1478.687741][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1478.687741][   T73]      ip6_route_add+0x1c/0x140
[ 1478.687741][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1478.687741][   T73]      addrconf_add_dev+0xe2/0x170
[ 1478.687741][   T73]      inet6_addr_add+0x12f/0xa40
[ 1478.687741][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1478.687741][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1478.687741][   T73]      netlink_rcv_skb+0x130/0x360
[ 1478.687741][   T73]      netlink_unicast+0x449/0x710
[ 1478.687741][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1478.687741][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1478.687741][   T73]      ___sys_sendmsg+0xee/0x170
[ 1478.687741][   T73]      __sys_sendmsg+0xcd/0x170
[ 1478.687741][   T73]      do_syscall_64+0xc6/0x1e0
[ 1478.687741][   T73] 
[ 1478.689964][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1478.689964][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1478.689964][   T73]      ipv6_find_idev+0x102/0x170
[ 1478.689964][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1478.689964][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1478.689964][   T73]      netlink_rcv_skb+0x130/0x360
[ 1478.689964][   T73]      netlink_unicast+0x449/0x710
[ 1478.689964][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1478.689964][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1478.689964][   T73]      ___sys_sendmsg+0xee/0x170
[ 1478.689964][   T73]      __sys_sendmsg+0xcd/0x170
[ 1478.689964][   T73]      do_syscall_64+0xc6/0x1e0
[ 1478.689964][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1478.689964][   T73] 
[ 1478.691701][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1478.691701][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1478.691701][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1478.691701][   T73]      ipv6_find_idev+0x102/0x170
[ 1478.691701][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1478.691701][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1478.691701][   T73]      netlink_rcv_skb+0x130/0x360
[ 1478.691701][   T73]      netlink_unicast+0x449/0x710
[ 1478.691701][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1478.691701][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1478.691701][   T73]      ___sys_sendmsg+0xee/0x170
[ 1478.691701][   T73]      __sys_sendmsg+0xcd/0x170
[ 1478.691701][   T73]      do_syscall_64+0xc6/0x1e0
[ 1478.691701][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1478.691701][   T73] 
[ 1488.943762][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1488.944255][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1488.944255][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1488.944255][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1488.944255][   T73]      fib6_nh_init+0xa22/0x1580
[ 1488.944255][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1488.944255][   T73]      ip6_route_add+0x1c/0x140
[ 1488.944255][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1488.944255][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1488.944255][   T73]      netlink_rcv_skb+0x130/0x360
[ 1488.944255][   T73]      netlink_unicast+0x449/0x710
[ 1488.944255][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1488.944255][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1488.944255][   T73]      ___sys_sendmsg+0xee/0x170
[ 1488.944255][   T73]      __sys_sendmsg+0xcd/0x170
[ 1488.944255][   T73]      do_syscall_64+0xc6/0x1e0
[ 1488.944255][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1488.944255][   T73] 
[ 1488.946280][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1488.946280][   T73]      dst_init+0x84/0x4a0
[ 1488.946280][   T73]      dst_alloc+0x97/0x150
[ 1488.946280][   T73]      ip6_dst_alloc+0x23/0x90
[ 1488.946280][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1488.946280][   T73]      ip6_pol_route+0x56f/0x840
[ 1488.946280][   T73]      fib6_rule_lookup+0x456/0x630
[ 1488.946280][   T73]      ip6_route_input+0x59c/0xa50
[ 1488.946280][   T73]      ipv6_rcv+0x397/0x810
[ 1488.946280][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1488.946280][   T73]      process_backlog+0x101/0x620
[ 1488.946280][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1488.946280][   T73]      net_rx_action+0x495/0xbe0
[ 1488.946280][   T73]      __do_softirq+0x1b5/0x7f6
[ 1488.946280][   T73] 
[ 1488.948004][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1488.948004][   T73]      netdev_get_by_index+0x5e/0x80
[ 1488.948004][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1488.948004][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1488.948004][   T73]      ip6_route_add+0x1c/0x140
[ 1488.948004][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1488.948004][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1488.948004][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1488.948004][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1488.948004][   T73]      netlink_rcv_skb+0x130/0x360
[ 1488.948004][   T73]      netlink_unicast+0x449/0x710
[ 1488.948004][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1488.948004][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1488.948004][   T73]      ___sys_sendmsg+0xee/0x170
[ 1488.948004][   T73]      __sys_sendmsg+0xcd/0x170
[ 1488.948004][   T73]      do_syscall_64+0xc6/0x1e0
[ 1488.948004][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1488.948004][   T73] 
[ 1488.950037][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1488.950037][   T73]      netdev_get_by_index+0x5e/0x80
[ 1488.950037][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1488.950037][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1488.950037][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1488.950037][   T73]      ipv6_add_addr+0x411/0x2000
[ 1488.950037][   T73]      inet6_addr_add+0x30e/0xa40
[ 1488.950037][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1488.950037][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1488.950037][   T73]      netlink_rcv_skb+0x130/0x360
[ 1488.950037][   T73]      netlink_unicast+0x449/0x710
[ 1488.950037][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1488.950037][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1488.950037][   T73]      ___sys_sendmsg+0xee/0x170
[ 1488.950037][   T73]      __sys_sendmsg+0xcd/0x170
[ 1488.950037][   T73]      do_syscall_64+0xc6/0x1e0
[ 1488.950037][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1488.950037][   T73] 
[ 1488.952150][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1488.952150][   T73]      netdev_get_by_index+0x5e/0x80
[ 1488.952150][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1488.952150][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1488.952150][   T73]      ip6_route_add+0x1c/0x140
[ 1488.952150][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1488.952150][   T73]      addrconf_add_dev+0xe2/0x170
[ 1488.952150][   T73]      inet6_addr_add+0x12f/0xa40
[ 1488.952150][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1488.952150][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1488.952150][   T73]      netlink_rcv_skb+0x130/0x360
[ 1488.952150][   T73]      netlink_unicast+0x449/0x710
[ 1488.952150][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1488.952150][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1488.952150][   T73]      ___sys_sendmsg+0xee/0x170
[ 1488.952150][   T73]      __sys_sendmsg+0xcd/0x170
[ 1488.952150][   T73]      do_syscall_64+0xc6/0x1e0
[ 1488.952150][   T73] 
[ 1488.954248][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1488.954248][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1488.954248][   T73]      ipv6_find_idev+0x102/0x170
[ 1488.954248][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1488.954248][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1488.954248][   T73]      netlink_rcv_skb+0x130/0x360
[ 1488.954248][   T73]      netlink_unicast+0x449/0x710
[ 1488.954248][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1488.954248][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1488.954248][   T73]      ___sys_sendmsg+0xee/0x170
[ 1488.954248][   T73]      __sys_sendmsg+0xcd/0x170
[ 1488.954248][   T73]      do_syscall_64+0xc6/0x1e0
[ 1488.954248][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1488.954248][   T73] 
[ 1488.955960][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1488.955960][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1488.955960][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1488.955960][   T73]      ipv6_find_idev+0x102/0x170
[ 1488.955960][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1488.955960][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1488.955960][   T73]      netlink_rcv_skb+0x130/0x360
[ 1488.955960][   T73]      netlink_unicast+0x449/0x710
[ 1488.955960][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1488.955960][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1488.955960][   T73]      ___sys_sendmsg+0xee/0x170
[ 1488.955960][   T73]      __sys_sendmsg+0xcd/0x170
[ 1488.955960][   T73]      do_syscall_64+0xc6/0x1e0
[ 1488.955960][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1488.955960][   T73] 
[ 1488.957689][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1488.957985][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1488.957985][   T73]      netdev_get_by_index+0x5e/0x80
[ 1488.957985][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1488.957985][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1488.957985][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1488.957985][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1488.957985][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1488.957985][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1488.957985][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1488.957985][   T73]      addrconf_dad_begin+0x310/0x670
[ 1488.957985][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1488.957985][   T73]      process_one_work+0x84d/0x18a0
[ 1488.957985][   T73]      worker_thread+0x587/0xd30
[ 1488.957985][   T73]      kthread+0x28a/0x350
[ 1488.957985][   T73]      ret_from_fork+0x31/0x70
[ 1488.957985][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1488.957985][   T73] 
[ 1488.960006][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1488.960006][   T73]      netdev_get_by_index+0x5e/0x80
[ 1488.960006][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1488.960006][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1488.960006][   T73]      ip6_route_add+0x1c/0x140
[ 1488.960006][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1488.960006][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1488.960006][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1488.960006][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1488.960006][   T73]      netlink_rcv_skb+0x130/0x360
[ 1488.960006][   T73]      netlink_unicast+0x449/0x710
[ 1488.960006][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1488.960006][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1488.960006][   T73]      ___sys_sendmsg+0xee/0x170
[ 1488.960006][   T73]      __sys_sendmsg+0xcd/0x170
[ 1488.960006][   T73]      do_syscall_64+0xc6/0x1e0
[ 1488.960006][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1488.960006][   T73] 
[ 1488.962128][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1488.962128][   T73]      netdev_get_by_index+0x5e/0x80
[ 1488.962128][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1488.962128][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1488.962128][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1488.962128][   T73]      ipv6_add_addr+0x411/0x2000
[ 1488.962128][   T73]      inet6_addr_add+0x30e/0xa40
[ 1488.962128][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1488.962128][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1488.962128][   T73]      netlink_rcv_skb+0x130/0x360
[ 1488.962128][   T73]      netlink_unicast+0x449/0x710
[ 1488.962128][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1488.962128][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1488.962128][   T73]      ___sys_sendmsg+0xee/0x170
[ 1488.962128][   T73]      __sys_sendmsg+0xcd/0x170
[ 1488.962128][   T73]      do_syscall_64+0xc6/0x1e0
[ 1488.962128][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1488.962128][   T73] 
[ 1488.964244][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1488.964244][   T73]      netdev_get_by_index+0x5e/0x80
[ 1488.964244][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1488.964244][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1488.964244][   T73]      ip6_route_add+0x1c/0x140
[ 1488.964244][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1488.964244][   T73]      addrconf_add_dev+0xe2/0x170
[ 1488.964244][   T73]      inet6_addr_add+0x12f/0xa40
[ 1488.964244][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1488.964244][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1488.964244][   T73]      netlink_rcv_skb+0x130/0x360
[ 1488.964244][   T73]      netlink_unicast+0x449/0x710
[ 1488.964244][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1488.964244][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1488.964244][   T73]      ___sys_sendmsg+0xee/0x170
[ 1488.964244][   T73]      __sys_sendmsg+0xcd/0x170
[ 1488.964244][   T73]      do_syscall_64+0xc6/0x1e0
[ 1488.964244][   T73] 
[ 1488.966371][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1488.966371][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1488.966371][   T73]      ipv6_find_idev+0x102/0x170
[ 1488.966371][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1488.966371][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1488.966371][   T73]      netlink_rcv_skb+0x130/0x360
[ 1488.966371][   T73]      netlink_unicast+0x449/0x710
[ 1488.966371][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1488.966371][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1488.966371][   T73]      ___sys_sendmsg+0xee/0x170
[ 1488.966371][   T73]      __sys_sendmsg+0xcd/0x170
[ 1488.966371][   T73]      do_syscall_64+0xc6/0x1e0
[ 1488.966371][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1488.966371][   T73] 
[ 1488.968000][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1488.968000][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1488.968000][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1488.968000][   T73]      ipv6_find_idev+0x102/0x170
[ 1488.968000][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1488.968000][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1488.968000][   T73]      netlink_rcv_skb+0x130/0x360
[ 1488.968000][   T73]      netlink_unicast+0x449/0x710
[ 1488.968000][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1488.968000][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1488.968000][   T73]      ___sys_sendmsg+0xee/0x170
[ 1488.968000][   T73]      __sys_sendmsg+0xcd/0x170
[ 1488.968000][   T73]      do_syscall_64+0xc6/0x1e0
[ 1488.968000][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1488.968000][   T73] 
[ 1488.969730][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1488.970014][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1488.970014][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1488.970014][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1488.970014][   T73]      fib6_nh_init+0xa22/0x1580
[ 1488.970014][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1488.970014][   T73]      ip6_route_add+0x1c/0x140
[ 1488.970014][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1488.970014][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1488.970014][   T73]      netlink_rcv_skb+0x130/0x360
[ 1488.970014][   T73]      netlink_unicast+0x449/0x710
[ 1488.970014][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1488.970014][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1488.970014][   T73]      ___sys_sendmsg+0xee/0x170
[ 1488.970014][   T73]      __sys_sendmsg+0xcd/0x170
[ 1488.970014][   T73]      do_syscall_64+0xc6/0x1e0
[ 1488.970014][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1488.970014][   T73] 
[ 1488.971975][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1488.971975][   T73]      dst_init+0x84/0x4a0
[ 1488.971975][   T73]      dst_alloc+0x97/0x150
[ 1488.971975][   T73]      ip6_dst_alloc+0x23/0x90
[ 1488.971975][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1488.971975][   T73]      ip6_pol_route+0x56f/0x840
[ 1488.971975][   T73]      fib6_rule_lookup+0x456/0x630
[ 1488.971975][   T73]      ip6_route_input+0x59c/0xa50
[ 1488.971975][   T73]      ipv6_rcv+0x397/0x810
[ 1488.971975][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1488.971975][   T73]      process_backlog+0x101/0x620
[ 1488.971975][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1488.971975][   T73]      net_rx_action+0x495/0xbe0
[ 1488.971975][   T73]      __do_softirq+0x1b5/0x7f6
[ 1488.971975][   T73] 
[ 1488.973905][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1488.973905][   T73]      netdev_get_by_index+0x5e/0x80
[ 1488.973905][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1488.973905][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1488.973905][   T73]      ip6_route_add+0x1c/0x140
[ 1488.973905][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1488.973905][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1488.973905][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1488.973905][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1488.973905][   T73]      netlink_rcv_skb+0x130/0x360
[ 1488.973905][   T73]      netlink_unicast+0x449/0x710
[ 1488.973905][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1488.973905][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1488.973905][   T73]      ___sys_sendmsg+0xee/0x170
[ 1488.973905][   T73]      __sys_sendmsg+0xcd/0x170
[ 1488.973905][   T73]      do_syscall_64+0xc6/0x1e0
[ 1488.973905][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1488.973905][   T73] 
[ 1488.976295][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1488.976295][   T73]      netdev_get_by_index+0x5e/0x80
[ 1488.976295][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1488.976295][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1488.976295][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1488.976295][   T73]      ipv6_add_addr+0x411/0x2000
[ 1488.976295][   T73]      inet6_addr_add+0x30e/0xa40
[ 1488.976295][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1488.976295][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1488.976295][   T73]      netlink_rcv_skb+0x130/0x360
[ 1488.976295][   T73]      netlink_unicast+0x449/0x710
[ 1488.976295][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1488.976295][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1488.976295][   T73]      ___sys_sendmsg+0xee/0x170
[ 1488.976295][   T73]      __sys_sendmsg+0xcd/0x170
[ 1488.976295][   T73]      do_syscall_64+0xc6/0x1e0
[ 1488.976295][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1488.976295][   T73] 
[ 1488.978715][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1488.978715][   T73]      netdev_get_by_index+0x5e/0x80
[ 1488.978715][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1488.978715][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1488.978715][   T73]      ip6_route_add+0x1c/0x140
[ 1488.978715][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1488.978715][   T73]      addrconf_add_dev+0xe2/0x170
[ 1488.978715][   T73]      inet6_addr_add+0x12f/0xa40
[ 1488.978715][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1488.978715][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1488.978715][   T73]      netlink_rcv_skb+0x130/0x360
[ 1488.978715][   T73]      netlink_unicast+0x449/0x710
[ 1488.978715][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1488.978715][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1488.978715][   T73]      ___sys_sendmsg+0xee/0x170
[ 1488.978715][   T73]      __sys_sendmsg+0xcd/0x170
[ 1488.978715][   T73]      do_syscall_64+0xc6/0x1e0
[ 1488.978715][   T73] 
[ 1488.981046][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1488.981046][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1488.981046][   T73]      ipv6_find_idev+0x102/0x170
[ 1488.981046][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1488.981046][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1488.981046][   T73]      netlink_rcv_skb+0x130/0x360
[ 1488.981046][   T73]      netlink_unicast+0x449/0x710
[ 1488.981046][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1488.981046][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1488.981046][   T73]      ___sys_sendmsg+0xee/0x170
[ 1488.981046][   T73]      __sys_sendmsg+0xcd/0x170
[ 1488.981046][   T73]      do_syscall_64+0xc6/0x1e0
[ 1488.981046][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1488.981046][   T73] 
[ 1488.982954][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1488.982954][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1488.982954][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1488.982954][   T73]      ipv6_find_idev+0x102/0x170
[ 1488.982954][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1488.982954][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1488.982954][   T73]      netlink_rcv_skb+0x130/0x360
[ 1488.982954][   T73]      netlink_unicast+0x449/0x710
[ 1488.982954][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1488.982954][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1488.982954][   T73]      ___sys_sendmsg+0xee/0x170
[ 1488.982954][   T73]      __sys_sendmsg+0xcd/0x170
[ 1488.982954][   T73]      do_syscall_64+0xc6/0x1e0
[ 1488.982954][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1488.982954][   T73] 
[ 1488.984958][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1488.985254][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1488.985254][   T73]      netdev_get_by_index+0x5e/0x80
[ 1488.985254][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1488.985254][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1488.985254][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1488.985254][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1488.985254][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1488.985254][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1488.985254][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1488.985254][   T73]      addrconf_dad_begin+0x310/0x670
[ 1488.985254][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1488.985254][   T73]      process_one_work+0x84d/0x18a0
[ 1488.985254][   T73]      worker_thread+0x587/0xd30
[ 1488.985254][   T73]      kthread+0x28a/0x350
[ 1488.985254][   T73]      ret_from_fork+0x31/0x70
[ 1488.985254][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1488.985254][   T73] 
[ 1488.987540][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1488.987540][   T73]      netdev_get_by_index+0x5e/0x80
[ 1488.987540][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1488.987540][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1488.987540][   T73]      ip6_route_add+0x1c/0x140
[ 1488.987540][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1488.987540][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1488.987540][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1488.987540][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1488.987540][   T73]      netlink_rcv_skb+0x130/0x360
[ 1488.987540][   T73]      netlink_unicast+0x449/0x710
[ 1488.987540][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1488.987540][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1488.987540][   T73]      ___sys_sendmsg+0xee/0x170
[ 1488.987540][   T73]      __sys_sendmsg+0xcd/0x170
[ 1488.987540][   T73]      do_syscall_64+0xc6/0x1e0
[ 1488.987540][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1488.987540][   T73] 
[ 1488.989802][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1488.989802][   T73]      netdev_get_by_index+0x5e/0x80
[ 1488.989802][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1488.989802][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1488.989802][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1488.989802][   T73]      ipv6_add_addr+0x411/0x2000
[ 1488.989802][   T73]      inet6_addr_add+0x30e/0xa40
[ 1488.989802][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1488.989802][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1488.989802][   T73]      netlink_rcv_skb+0x130/0x360
[ 1488.989802][   T73]      netlink_unicast+0x449/0x710
[ 1488.989802][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1488.989802][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1488.989802][   T73]      ___sys_sendmsg+0xee/0x170
[ 1488.989802][   T73]      __sys_sendmsg+0xcd/0x170
[ 1488.989802][   T73]      do_syscall_64+0xc6/0x1e0
[ 1488.989802][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1488.989802][   T73] 
[ 1488.992066][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1488.992066][   T73]      netdev_get_by_index+0x5e/0x80
[ 1488.992066][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1488.992066][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1488.992066][   T73]      ip6_route_add+0x1c/0x140
[ 1488.992066][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1488.992066][   T73]      addrconf_add_dev+0xe2/0x170
[ 1488.992066][   T73]      inet6_addr_add+0x12f/0xa40
[ 1488.992066][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1488.992066][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1488.992066][   T73]      netlink_rcv_skb+0x130/0x360
[ 1488.992066][   T73]      netlink_unicast+0x449/0x710
[ 1488.992066][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1488.992066][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1488.992066][   T73]      ___sys_sendmsg+0xee/0x170
[ 1488.992066][   T73]      __sys_sendmsg+0xcd/0x170
[ 1488.992066][   T73]      do_syscall_64+0xc6/0x1e0
[ 1488.992066][   T73] 
[ 1488.994385][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1488.994385][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1488.994385][   T73]      ipv6_find_idev+0x102/0x170
[ 1488.994385][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1488.994385][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1488.994385][   T73]      netlink_rcv_skb+0x130/0x360
[ 1488.994385][   T73]      netlink_unicast+0x449/0x710
[ 1488.994385][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1488.994385][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1488.994385][   T73]      ___sys_sendmsg+0xee/0x170
[ 1488.994385][   T73]      __sys_sendmsg+0xcd/0x170
[ 1488.994385][   T73]      do_syscall_64+0xc6/0x1e0
[ 1488.994385][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1488.994385][   T73] 
[ 1488.996115][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1488.996115][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1488.996115][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1488.996115][   T73]      ipv6_find_idev+0x102/0x170
[ 1488.996115][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1488.996115][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1488.996115][   T73]      netlink_rcv_skb+0x130/0x360
[ 1488.996115][   T73]      netlink_unicast+0x449/0x710
[ 1488.996115][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1488.996115][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1488.996115][   T73]      ___sys_sendmsg+0xee/0x170
[ 1488.996115][   T73]      __sys_sendmsg+0xcd/0x170
[ 1488.996115][   T73]      do_syscall_64+0xc6/0x1e0
[ 1488.996115][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1488.996115][   T73] 
[ 1499.167818][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1499.168381][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1499.168381][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1499.168381][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1499.168381][   T73]      fib6_nh_init+0xa22/0x1580
[ 1499.168381][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1499.168381][   T73]      ip6_route_add+0x1c/0x140
[ 1499.168381][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1499.168381][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1499.168381][   T73]      netlink_rcv_skb+0x130/0x360
[ 1499.168381][   T73]      netlink_unicast+0x449/0x710
[ 1499.168381][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1499.168381][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1499.168381][   T73]      ___sys_sendmsg+0xee/0x170
[ 1499.168381][   T73]      __sys_sendmsg+0xcd/0x170
[ 1499.168381][   T73]      do_syscall_64+0xc6/0x1e0
[ 1499.168381][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1499.168381][   T73] 
[ 1499.170557][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1499.170557][   T73]      dst_init+0x84/0x4a0
[ 1499.170557][   T73]      dst_alloc+0x97/0x150
[ 1499.170557][   T73]      ip6_dst_alloc+0x23/0x90
[ 1499.170557][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1499.170557][   T73]      ip6_pol_route+0x56f/0x840
[ 1499.170557][   T73]      fib6_rule_lookup+0x456/0x630
[ 1499.170557][   T73]      ip6_route_input+0x59c/0xa50
[ 1499.170557][   T73]      ipv6_rcv+0x397/0x810
[ 1499.170557][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1499.170557][   T73]      process_backlog+0x101/0x620
[ 1499.170557][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1499.170557][   T73]      net_rx_action+0x495/0xbe0
[ 1499.170557][   T73]      __do_softirq+0x1b5/0x7f6
[ 1499.170557][   T73] 
[ 1499.172425][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1499.172425][   T73]      netdev_get_by_index+0x5e/0x80
[ 1499.172425][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1499.172425][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1499.172425][   T73]      ip6_route_add+0x1c/0x140
[ 1499.172425][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1499.172425][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1499.172425][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1499.172425][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1499.172425][   T73]      netlink_rcv_skb+0x130/0x360
[ 1499.172425][   T73]      netlink_unicast+0x449/0x710
[ 1499.172425][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1499.172425][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1499.172425][   T73]      ___sys_sendmsg+0xee/0x170
[ 1499.172425][   T73]      __sys_sendmsg+0xcd/0x170
[ 1499.172425][   T73]      do_syscall_64+0xc6/0x1e0
[ 1499.172425][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1499.172425][   T73] 
[ 1499.174708][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1499.174708][   T73]      netdev_get_by_index+0x5e/0x80
[ 1499.174708][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1499.174708][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1499.174708][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1499.174708][   T73]      ipv6_add_addr+0x411/0x2000
[ 1499.174708][   T73]      inet6_addr_add+0x30e/0xa40
[ 1499.174708][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1499.174708][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1499.174708][   T73]      netlink_rcv_skb+0x130/0x360
[ 1499.174708][   T73]      netlink_unicast+0x449/0x710
[ 1499.174708][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1499.174708][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1499.174708][   T73]      ___sys_sendmsg+0xee/0x170
[ 1499.174708][   T73]      __sys_sendmsg+0xcd/0x170
[ 1499.174708][   T73]      do_syscall_64+0xc6/0x1e0
[ 1499.174708][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1499.174708][   T73] 
[ 1499.176979][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1499.176979][   T73]      netdev_get_by_index+0x5e/0x80
[ 1499.176979][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1499.176979][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1499.176979][   T73]      ip6_route_add+0x1c/0x140
[ 1499.176979][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1499.176979][   T73]      addrconf_add_dev+0xe2/0x170
[ 1499.176979][   T73]      inet6_addr_add+0x12f/0xa40
[ 1499.176979][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1499.176979][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1499.176979][   T73]      netlink_rcv_skb+0x130/0x360
[ 1499.176979][   T73]      netlink_unicast+0x449/0x710
[ 1499.176979][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1499.176979][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1499.176979][   T73]      ___sys_sendmsg+0xee/0x170
[ 1499.176979][   T73]      __sys_sendmsg+0xcd/0x170
[ 1499.176979][   T73]      do_syscall_64+0xc6/0x1e0
[ 1499.176979][   T73] 
[ 1499.179223][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1499.179223][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1499.179223][   T73]      ipv6_find_idev+0x102/0x170
[ 1499.179223][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1499.179223][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1499.179223][   T73]      netlink_rcv_skb+0x130/0x360
[ 1499.179223][   T73]      netlink_unicast+0x449/0x710
[ 1499.179223][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1499.179223][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1499.179223][   T73]      ___sys_sendmsg+0xee/0x170
[ 1499.179223][   T73]      __sys_sendmsg+0xcd/0x170
[ 1499.179223][   T73]      do_syscall_64+0xc6/0x1e0
[ 1499.179223][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1499.179223][   T73] 
[ 1499.181001][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1499.181001][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1499.181001][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1499.181001][   T73]      ipv6_find_idev+0x102/0x170
[ 1499.181001][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1499.181001][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1499.181001][   T73]      netlink_rcv_skb+0x130/0x360
[ 1499.181001][   T73]      netlink_unicast+0x449/0x710
[ 1499.181001][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1499.181001][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1499.181001][   T73]      ___sys_sendmsg+0xee/0x170
[ 1499.181001][   T73]      __sys_sendmsg+0xcd/0x170
[ 1499.181001][   T73]      do_syscall_64+0xc6/0x1e0
[ 1499.181001][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1499.181001][   T73] 
[ 1499.182959][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1499.183280][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1499.183280][   T73]      netdev_get_by_index+0x5e/0x80
[ 1499.183280][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1499.183280][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1499.183280][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1499.183280][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1499.183280][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1499.183280][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1499.183280][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1499.183280][   T73]      addrconf_dad_begin+0x310/0x670
[ 1499.183280][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1499.183280][   T73]      process_one_work+0x84d/0x18a0
[ 1499.183280][   T73]      worker_thread+0x587/0xd30
[ 1499.183280][   T73]      kthread+0x28a/0x350
[ 1499.183280][   T73]      ret_from_fork+0x31/0x70
[ 1499.183280][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1499.183280][   T73] 
[ 1499.185447][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1499.185447][   T73]      netdev_get_by_index+0x5e/0x80
[ 1499.185447][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1499.185447][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1499.185447][   T73]      ip6_route_add+0x1c/0x140
[ 1499.185447][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1499.185447][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1499.185447][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1499.185447][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1499.185447][   T73]      netlink_rcv_skb+0x130/0x360
[ 1499.185447][   T73]      netlink_unicast+0x449/0x710
[ 1499.185447][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1499.185447][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1499.185447][   T73]      ___sys_sendmsg+0xee/0x170
[ 1499.185447][   T73]      __sys_sendmsg+0xcd/0x170
[ 1499.185447][   T73]      do_syscall_64+0xc6/0x1e0
[ 1499.185447][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1499.185447][   T73] 
[ 1499.187727][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1499.187727][   T73]      netdev_get_by_index+0x5e/0x80
[ 1499.187727][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1499.187727][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1499.187727][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1499.187727][   T73]      ipv6_add_addr+0x411/0x2000
[ 1499.187727][   T73]      inet6_addr_add+0x30e/0xa40
[ 1499.187727][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1499.187727][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1499.187727][   T73]      netlink_rcv_skb+0x130/0x360
[ 1499.187727][   T73]      netlink_unicast+0x449/0x710
[ 1499.187727][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1499.187727][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1499.187727][   T73]      ___sys_sendmsg+0xee/0x170
[ 1499.187727][   T73]      __sys_sendmsg+0xcd/0x170
[ 1499.187727][   T73]      do_syscall_64+0xc6/0x1e0
[ 1499.187727][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1499.187727][   T73] 
[ 1499.190007][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1499.190007][   T73]      netdev_get_by_index+0x5e/0x80
[ 1499.190007][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1499.190007][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1499.190007][   T73]      ip6_route_add+0x1c/0x140
[ 1499.190007][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1499.190007][   T73]      addrconf_add_dev+0xe2/0x170
[ 1499.190007][   T73]      inet6_addr_add+0x12f/0xa40
[ 1499.190007][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1499.190007][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1499.190007][   T73]      netlink_rcv_skb+0x130/0x360
[ 1499.190007][   T73]      netlink_unicast+0x449/0x710
[ 1499.190007][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1499.190007][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1499.190007][   T73]      ___sys_sendmsg+0xee/0x170
[ 1499.190007][   T73]      __sys_sendmsg+0xcd/0x170
[ 1499.190007][   T73]      do_syscall_64+0xc6/0x1e0
[ 1499.190007][   T73] 
[ 1499.192244][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1499.192244][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1499.192244][   T73]      ipv6_find_idev+0x102/0x170
[ 1499.192244][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1499.192244][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1499.192244][   T73]      netlink_rcv_skb+0x130/0x360
[ 1499.192244][   T73]      netlink_unicast+0x449/0x710
[ 1499.192244][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1499.192244][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1499.192244][   T73]      ___sys_sendmsg+0xee/0x170
[ 1499.192244][   T73]      __sys_sendmsg+0xcd/0x170
[ 1499.192244][   T73]      do_syscall_64+0xc6/0x1e0
[ 1499.192244][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1499.192244][   T73] 
[ 1499.193992][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1499.193992][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1499.193992][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1499.193992][   T73]      ipv6_find_idev+0x102/0x170
[ 1499.193992][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1499.193992][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1499.193992][   T73]      netlink_rcv_skb+0x130/0x360
[ 1499.193992][   T73]      netlink_unicast+0x449/0x710
[ 1499.193992][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1499.193992][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1499.193992][   T73]      ___sys_sendmsg+0xee/0x170
[ 1499.193992][   T73]      __sys_sendmsg+0xcd/0x170
[ 1499.193992][   T73]      do_syscall_64+0xc6/0x1e0
[ 1499.193992][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1499.193992][   T73] 
[ 1499.195923][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1499.196226][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1499.196226][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1499.196226][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1499.196226][   T73]      fib6_nh_init+0xa22/0x1580
[ 1499.196226][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1499.196226][   T73]      ip6_route_add+0x1c/0x140
[ 1499.196226][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1499.196226][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1499.196226][   T73]      netlink_rcv_skb+0x130/0x360
[ 1499.196226][   T73]      netlink_unicast+0x449/0x710
[ 1499.196226][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1499.196226][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1499.196226][   T73]      ___sys_sendmsg+0xee/0x170
[ 1499.196226][   T73]      __sys_sendmsg+0xcd/0x170
[ 1499.196226][   T73]      do_syscall_64+0xc6/0x1e0
[ 1499.196226][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1499.196226][   T73] 
[ 1499.198549][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1499.198549][   T73]      dst_init+0x84/0x4a0
[ 1499.198549][   T73]      dst_alloc+0x97/0x150
[ 1499.198549][   T73]      ip6_dst_alloc+0x23/0x90
[ 1499.198549][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1499.198549][   T73]      ip6_pol_route+0x56f/0x840
[ 1499.198549][   T73]      fib6_rule_lookup+0x456/0x630
[ 1499.198549][   T73]      ip6_route_input+0x59c/0xa50
[ 1499.198549][   T73]      ipv6_rcv+0x397/0x810
[ 1499.198549][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1499.198549][   T73]      process_backlog+0x101/0x620
[ 1499.198549][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1499.198549][   T73]      net_rx_action+0x495/0xbe0
[ 1499.198549][   T73]      __do_softirq+0x1b5/0x7f6
[ 1499.198549][   T73] 
[ 1499.200591][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1499.200591][   T73]      netdev_get_by_index+0x5e/0x80
[ 1499.200591][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1499.200591][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1499.200591][   T73]      ip6_route_add+0x1c/0x140
[ 1499.200591][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1499.200591][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1499.200591][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1499.200591][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1499.200591][   T73]      netlink_rcv_skb+0x130/0x360
[ 1499.200591][   T73]      netlink_unicast+0x449/0x710
[ 1499.200591][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1499.200591][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1499.200591][   T73]      ___sys_sendmsg+0xee/0x170
[ 1499.200591][   T73]      __sys_sendmsg+0xcd/0x170
[ 1499.200591][   T73]      do_syscall_64+0xc6/0x1e0
[ 1499.200591][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1499.200591][   T73] 
[ 1499.203119][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1499.203119][   T73]      netdev_get_by_index+0x5e/0x80
[ 1499.203119][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1499.203119][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1499.203119][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1499.203119][   T73]      ipv6_add_addr+0x411/0x2000
[ 1499.203119][   T73]      inet6_addr_add+0x30e/0xa40
[ 1499.203119][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1499.203119][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1499.203119][   T73]      netlink_rcv_skb+0x130/0x360
[ 1499.203119][   T73]      netlink_unicast+0x449/0x710
[ 1499.203119][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1499.203119][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1499.203119][   T73]      ___sys_sendmsg+0xee/0x170
[ 1499.203119][   T73]      __sys_sendmsg+0xcd/0x170
[ 1499.203119][   T73]      do_syscall_64+0xc6/0x1e0
[ 1499.203119][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1499.203119][   T73] 
[ 1499.205706][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1499.205706][   T73]      netdev_get_by_index+0x5e/0x80
[ 1499.205706][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1499.205706][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1499.205706][   T73]      ip6_route_add+0x1c/0x140
[ 1499.205706][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1499.205706][   T73]      addrconf_add_dev+0xe2/0x170
[ 1499.205706][   T73]      inet6_addr_add+0x12f/0xa40
[ 1499.205706][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1499.205706][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1499.205706][   T73]      netlink_rcv_skb+0x130/0x360
[ 1499.205706][   T73]      netlink_unicast+0x449/0x710
[ 1499.205706][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1499.205706][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1499.205706][   T73]      ___sys_sendmsg+0xee/0x170
[ 1499.205706][   T73]      __sys_sendmsg+0xcd/0x170
[ 1499.205706][   T73]      do_syscall_64+0xc6/0x1e0
[ 1499.205706][   T73] 
[ 1499.208122][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1499.208122][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1499.208122][   T73]      ipv6_find_idev+0x102/0x170
[ 1499.208122][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1499.208122][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1499.208122][   T73]      netlink_rcv_skb+0x130/0x360
[ 1499.208122][   T73]      netlink_unicast+0x449/0x710
[ 1499.208122][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1499.208122][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1499.208122][   T73]      ___sys_sendmsg+0xee/0x170
[ 1499.208122][   T73]      __sys_sendmsg+0xcd/0x170
[ 1499.208122][   T73]      do_syscall_64+0xc6/0x1e0
[ 1499.208122][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1499.208122][   T73] 
[ 1499.210060][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1499.210060][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1499.210060][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1499.210060][   T73]      ipv6_find_idev+0x102/0x170
[ 1499.210060][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1499.210060][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1499.210060][   T73]      netlink_rcv_skb+0x130/0x360
[ 1499.210060][   T73]      netlink_unicast+0x449/0x710
[ 1499.210060][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1499.210060][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1499.210060][   T73]      ___sys_sendmsg+0xee/0x170
[ 1499.210060][   T73]      __sys_sendmsg+0xcd/0x170
[ 1499.210060][   T73]      do_syscall_64+0xc6/0x1e0
[ 1499.210060][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1499.210060][   T73] 
[ 1499.212239][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1499.212547][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1499.212547][   T73]      netdev_get_by_index+0x5e/0x80
[ 1499.212547][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1499.212547][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1499.212547][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1499.212547][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1499.212547][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1499.212547][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1499.212547][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1499.212547][   T73]      addrconf_dad_begin+0x310/0x670
[ 1499.212547][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1499.212547][   T73]      process_one_work+0x84d/0x18a0
[ 1499.212547][   T73]      worker_thread+0x587/0xd30
[ 1499.212547][   T73]      kthread+0x28a/0x350
[ 1499.212547][   T73]      ret_from_fork+0x31/0x70
[ 1499.212547][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1499.212547][   T73] 
[ 1499.214963][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1499.214963][   T73]      netdev_get_by_index+0x5e/0x80
[ 1499.214963][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1499.214963][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1499.214963][   T73]      ip6_route_add+0x1c/0x140
[ 1499.214963][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1499.214963][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1499.214963][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1499.214963][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1499.214963][   T73]      netlink_rcv_skb+0x130/0x360
[ 1499.214963][   T73]      netlink_unicast+0x449/0x710
[ 1499.214963][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1499.214963][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1499.214963][   T73]      ___sys_sendmsg+0xee/0x170
[ 1499.214963][   T73]      __sys_sendmsg+0xcd/0x170
[ 1499.214963][   T73]      do_syscall_64+0xc6/0x1e0
[ 1499.214963][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1499.214963][   T73] 
[ 1499.217555][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1499.217555][   T73]      netdev_get_by_index+0x5e/0x80
[ 1499.217555][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1499.217555][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1499.217555][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1499.217555][   T73]      ipv6_add_addr+0x411/0x2000
[ 1499.217555][   T73]      inet6_addr_add+0x30e/0xa40
[ 1499.217555][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1499.217555][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1499.217555][   T73]      netlink_rcv_skb+0x130/0x360
[ 1499.217555][   T73]      netlink_unicast+0x449/0x710
[ 1499.217555][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1499.217555][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1499.217555][   T73]      ___sys_sendmsg+0xee/0x170
[ 1499.217555][   T73]      __sys_sendmsg+0xcd/0x170
[ 1499.217555][   T73]      do_syscall_64+0xc6/0x1e0
[ 1499.217555][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1499.217555][   T73] 
[ 1499.220016][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1499.220016][   T73]      netdev_get_by_index+0x5e/0x80
[ 1499.220016][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1499.220016][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1499.220016][   T73]      ip6_route_add+0x1c/0x140
[ 1499.220016][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1499.220016][   T73]      addrconf_add_dev+0xe2/0x170
[ 1499.220016][   T73]      inet6_addr_add+0x12f/0xa40
[ 1499.220016][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1499.220016][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1499.220016][   T73]      netlink_rcv_skb+0x130/0x360
[ 1499.220016][   T73]      netlink_unicast+0x449/0x710
[ 1499.220016][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1499.220016][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1499.220016][   T73]      ___sys_sendmsg+0xee/0x170
[ 1499.220016][   T73]      __sys_sendmsg+0xcd/0x170
[ 1499.220016][   T73]      do_syscall_64+0xc6/0x1e0
[ 1499.220016][   T73] 
[ 1499.222488][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1499.222488][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1499.222488][   T73]      ipv6_find_idev+0x102/0x170
[ 1499.222488][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1499.222488][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1499.222488][   T73]      netlink_rcv_skb+0x130/0x360
[ 1499.222488][   T73]      netlink_unicast+0x449/0x710
[ 1499.222488][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1499.222488][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1499.222488][   T73]      ___sys_sendmsg+0xee/0x170
[ 1499.222488][   T73]      __sys_sendmsg+0xcd/0x170
[ 1499.222488][   T73]      do_syscall_64+0xc6/0x1e0
[ 1499.222488][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1499.222488][   T73] 
[ 1499.224426][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1499.224426][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1499.224426][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1499.224426][   T73]      ipv6_find_idev+0x102/0x170
[ 1499.224426][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1499.224426][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1499.224426][   T73]      netlink_rcv_skb+0x130/0x360
[ 1499.224426][   T73]      netlink_unicast+0x449/0x710
[ 1499.224426][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1499.224426][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1499.224426][   T73]      ___sys_sendmsg+0xee/0x170
[ 1499.224426][   T73]      __sys_sendmsg+0xcd/0x170
[ 1499.224426][   T73]      do_syscall_64+0xc6/0x1e0
[ 1499.224426][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1499.224426][   T73] 
[ 1509.351769][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1509.352268][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1509.352268][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1509.352268][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1509.352268][   T73]      fib6_nh_init+0xa22/0x1580
[ 1509.352268][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1509.352268][   T73]      ip6_route_add+0x1c/0x140
[ 1509.352268][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1509.352268][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1509.352268][   T73]      netlink_rcv_skb+0x130/0x360
[ 1509.352268][   T73]      netlink_unicast+0x449/0x710
[ 1509.352268][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1509.352268][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1509.352268][   T73]      ___sys_sendmsg+0xee/0x170
[ 1509.352268][   T73]      __sys_sendmsg+0xcd/0x170
[ 1509.352268][   T73]      do_syscall_64+0xc6/0x1e0
[ 1509.352268][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1509.352268][   T73] 
[ 1509.354191][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1509.354191][   T73]      dst_init+0x84/0x4a0
[ 1509.354191][   T73]      dst_alloc+0x97/0x150
[ 1509.354191][   T73]      ip6_dst_alloc+0x23/0x90
[ 1509.354191][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1509.354191][   T73]      ip6_pol_route+0x56f/0x840
[ 1509.354191][   T73]      fib6_rule_lookup+0x456/0x630
[ 1509.354191][   T73]      ip6_route_input+0x59c/0xa50
[ 1509.354191][   T73]      ipv6_rcv+0x397/0x810
[ 1509.354191][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1509.354191][   T73]      process_backlog+0x101/0x620
[ 1509.354191][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1509.354191][   T73]      net_rx_action+0x495/0xbe0
[ 1509.354191][   T73]      __do_softirq+0x1b5/0x7f6
[ 1509.354191][   T73] 
[ 1509.355861][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1509.355861][   T73]      netdev_get_by_index+0x5e/0x80
[ 1509.355861][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1509.355861][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1509.355861][   T73]      ip6_route_add+0x1c/0x140
[ 1509.355861][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1509.355861][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1509.355861][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1509.355861][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1509.355861][   T73]      netlink_rcv_skb+0x130/0x360
[ 1509.355861][   T73]      netlink_unicast+0x449/0x710
[ 1509.355861][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1509.355861][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1509.355861][   T73]      ___sys_sendmsg+0xee/0x170
[ 1509.355861][   T73]      __sys_sendmsg+0xcd/0x170
[ 1509.355861][   T73]      do_syscall_64+0xc6/0x1e0
[ 1509.355861][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1509.355861][   T73] 
[ 1509.357918][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1509.357918][   T73]      netdev_get_by_index+0x5e/0x80
[ 1509.357918][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1509.357918][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1509.357918][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1509.357918][   T73]      ipv6_add_addr+0x411/0x2000
[ 1509.357918][   T73]      inet6_addr_add+0x30e/0xa40
[ 1509.357918][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1509.357918][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1509.357918][   T73]      netlink_rcv_skb+0x130/0x360
[ 1509.357918][   T73]      netlink_unicast+0x449/0x710
[ 1509.357918][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1509.357918][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1509.357918][   T73]      ___sys_sendmsg+0xee/0x170
[ 1509.357918][   T73]      __sys_sendmsg+0xcd/0x170
[ 1509.357918][   T73]      do_syscall_64+0xc6/0x1e0
[ 1509.357918][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1509.357918][   T73] 
[ 1509.359940][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1509.359940][   T73]      netdev_get_by_index+0x5e/0x80
[ 1509.359940][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1509.359940][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1509.359940][   T73]      ip6_route_add+0x1c/0x140
[ 1509.359940][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1509.359940][   T73]      addrconf_add_dev+0xe2/0x170
[ 1509.359940][   T73]      inet6_addr_add+0x12f/0xa40
[ 1509.359940][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1509.359940][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1509.359940][   T73]      netlink_rcv_skb+0x130/0x360
[ 1509.359940][   T73]      netlink_unicast+0x449/0x710
[ 1509.359940][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1509.359940][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1509.359940][   T73]      ___sys_sendmsg+0xee/0x170
[ 1509.359940][   T73]      __sys_sendmsg+0xcd/0x170
[ 1509.359940][   T73]      do_syscall_64+0xc6/0x1e0
[ 1509.359940][   T73] 
[ 1509.361920][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1509.361920][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1509.361920][   T73]      ipv6_find_idev+0x102/0x170
[ 1509.361920][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1509.361920][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1509.361920][   T73]      netlink_rcv_skb+0x130/0x360
[ 1509.361920][   T73]      netlink_unicast+0x449/0x710
[ 1509.361920][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1509.361920][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1509.361920][   T73]      ___sys_sendmsg+0xee/0x170
[ 1509.361920][   T73]      __sys_sendmsg+0xcd/0x170
[ 1509.361920][   T73]      do_syscall_64+0xc6/0x1e0
[ 1509.361920][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1509.361920][   T73] 
[ 1509.363479][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1509.363479][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1509.363479][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1509.363479][   T73]      ipv6_find_idev+0x102/0x170
[ 1509.363479][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1509.363479][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1509.363479][   T73]      netlink_rcv_skb+0x130/0x360
[ 1509.363479][   T73]      netlink_unicast+0x449/0x710
[ 1509.363479][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1509.363479][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1509.363479][   T73]      ___sys_sendmsg+0xee/0x170
[ 1509.363479][   T73]      __sys_sendmsg+0xcd/0x170
[ 1509.363479][   T73]      do_syscall_64+0xc6/0x1e0
[ 1509.363479][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1509.363479][   T73] 
[ 1509.365185][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1509.365468][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1509.365468][   T73]      netdev_get_by_index+0x5e/0x80
[ 1509.365468][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1509.365468][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1509.365468][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1509.365468][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1509.365468][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1509.365468][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1509.365468][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1509.365468][   T73]      addrconf_dad_begin+0x310/0x670
[ 1509.365468][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1509.365468][   T73]      process_one_work+0x84d/0x18a0
[ 1509.365468][   T73]      worker_thread+0x587/0xd30
[ 1509.365468][   T73]      kthread+0x28a/0x350
[ 1509.365468][   T73]      ret_from_fork+0x31/0x70
[ 1509.365468][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1509.365468][   T73] 
[ 1509.367398][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1509.367398][   T73]      netdev_get_by_index+0x5e/0x80
[ 1509.367398][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1509.367398][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1509.367398][   T73]      ip6_route_add+0x1c/0x140
[ 1509.367398][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1509.367398][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1509.367398][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1509.367398][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1509.367398][   T73]      netlink_rcv_skb+0x130/0x360
[ 1509.367398][   T73]      netlink_unicast+0x449/0x710
[ 1509.367398][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1509.367398][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1509.367398][   T73]      ___sys_sendmsg+0xee/0x170
[ 1509.367398][   T73]      __sys_sendmsg+0xcd/0x170
[ 1509.367398][   T73]      do_syscall_64+0xc6/0x1e0
[ 1509.367398][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1509.367398][   T73] 
[ 1509.369421][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1509.369421][   T73]      netdev_get_by_index+0x5e/0x80
[ 1509.369421][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1509.369421][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1509.369421][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1509.369421][   T73]      ipv6_add_addr+0x411/0x2000
[ 1509.369421][   T73]      inet6_addr_add+0x30e/0xa40
[ 1509.369421][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1509.369421][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1509.369421][   T73]      netlink_rcv_skb+0x130/0x360
[ 1509.369421][   T73]      netlink_unicast+0x449/0x710
[ 1509.369421][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1509.369421][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1509.369421][   T73]      ___sys_sendmsg+0xee/0x170
[ 1509.369421][   T73]      __sys_sendmsg+0xcd/0x170
[ 1509.369421][   T73]      do_syscall_64+0xc6/0x1e0
[ 1509.369421][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1509.369421][   T73] 
[ 1509.371434][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1509.371434][   T73]      netdev_get_by_index+0x5e/0x80
[ 1509.371434][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1509.371434][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1509.371434][   T73]      ip6_route_add+0x1c/0x140
[ 1509.371434][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1509.371434][   T73]      addrconf_add_dev+0xe2/0x170
[ 1509.371434][   T73]      inet6_addr_add+0x12f/0xa40
[ 1509.371434][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1509.371434][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1509.371434][   T73]      netlink_rcv_skb+0x130/0x360
[ 1509.371434][   T73]      netlink_unicast+0x449/0x710
[ 1509.371434][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1509.371434][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1509.371434][   T73]      ___sys_sendmsg+0xee/0x170
[ 1509.371434][   T73]      __sys_sendmsg+0xcd/0x170
[ 1509.371434][   T73]      do_syscall_64+0xc6/0x1e0
[ 1509.371434][   T73] 
[ 1509.373407][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1509.373407][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1509.373407][   T73]      ipv6_find_idev+0x102/0x170
[ 1509.373407][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1509.373407][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1509.373407][   T73]      netlink_rcv_skb+0x130/0x360
[ 1509.373407][   T73]      netlink_unicast+0x449/0x710
[ 1509.373407][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1509.373407][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1509.373407][   T73]      ___sys_sendmsg+0xee/0x170
[ 1509.373407][   T73]      __sys_sendmsg+0xcd/0x170
[ 1509.373407][   T73]      do_syscall_64+0xc6/0x1e0
[ 1509.373407][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1509.373407][   T73] 
[ 1509.374963][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1509.374963][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1509.374963][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1509.374963][   T73]      ipv6_find_idev+0x102/0x170
[ 1509.374963][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1509.374963][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1509.374963][   T73]      netlink_rcv_skb+0x130/0x360
[ 1509.374963][   T73]      netlink_unicast+0x449/0x710
[ 1509.374963][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1509.374963][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1509.374963][   T73]      ___sys_sendmsg+0xee/0x170
[ 1509.374963][   T73]      __sys_sendmsg+0xcd/0x170
[ 1509.374963][   T73]      do_syscall_64+0xc6/0x1e0
[ 1509.374963][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1509.374963][   T73] 
[ 1509.376667][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1509.376934][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1509.376934][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1509.376934][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1509.376934][   T73]      fib6_nh_init+0xa22/0x1580
[ 1509.376934][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1509.376934][   T73]      ip6_route_add+0x1c/0x140
[ 1509.376934][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1509.376934][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1509.376934][   T73]      netlink_rcv_skb+0x130/0x360
[ 1509.376934][   T73]      netlink_unicast+0x449/0x710
[ 1509.376934][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1509.376934][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1509.376934][   T73]      ___sys_sendmsg+0xee/0x170
[ 1509.376934][   T73]      __sys_sendmsg+0xcd/0x170
[ 1509.376934][   T73]      do_syscall_64+0xc6/0x1e0
[ 1509.376934][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1509.376934][   T73] 
[ 1509.379009][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1509.379009][   T73]      dst_init+0x84/0x4a0
[ 1509.379009][   T73]      dst_alloc+0x97/0x150
[ 1509.379009][   T73]      ip6_dst_alloc+0x23/0x90
[ 1509.379009][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1509.379009][   T73]      ip6_pol_route+0x56f/0x840
[ 1509.379009][   T73]      fib6_rule_lookup+0x456/0x630
[ 1509.379009][   T73]      ip6_route_input+0x59c/0xa50
[ 1509.379009][   T73]      ipv6_rcv+0x397/0x810
[ 1509.379009][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1509.379009][   T73]      process_backlog+0x101/0x620
[ 1509.379009][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1509.379009][   T73]      net_rx_action+0x495/0xbe0
[ 1509.379009][   T73]      __do_softirq+0x1b5/0x7f6
[ 1509.379009][   T73] 
[ 1509.380896][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1509.380896][   T73]      netdev_get_by_index+0x5e/0x80
[ 1509.380896][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1509.380896][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1509.380896][   T73]      ip6_route_add+0x1c/0x140
[ 1509.380896][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1509.380896][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1509.380896][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1509.380896][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1509.380896][   T73]      netlink_rcv_skb+0x130/0x360
[ 1509.380896][   T73]      netlink_unicast+0x449/0x710
[ 1509.380896][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1509.380896][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1509.380896][   T73]      ___sys_sendmsg+0xee/0x170
[ 1509.380896][   T73]      __sys_sendmsg+0xcd/0x170
[ 1509.380896][   T73]      do_syscall_64+0xc6/0x1e0
[ 1509.380896][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1509.380896][   T73] 
[ 1509.383085][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1509.383085][   T73]      netdev_get_by_index+0x5e/0x80
[ 1509.383085][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1509.383085][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1509.383085][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1509.383085][   T73]      ipv6_add_addr+0x411/0x2000
[ 1509.383085][   T73]      inet6_addr_add+0x30e/0xa40
[ 1509.383085][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1509.383085][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1509.383085][   T73]      netlink_rcv_skb+0x130/0x360
[ 1509.383085][   T73]      netlink_unicast+0x449/0x710
[ 1509.383085][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1509.383085][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1509.383085][   T73]      ___sys_sendmsg+0xee/0x170
[ 1509.383085][   T73]      __sys_sendmsg+0xcd/0x170
[ 1509.383085][   T73]      do_syscall_64+0xc6/0x1e0
[ 1509.383085][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1509.383085][   T73] 
[ 1509.385382][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1509.385382][   T73]      netdev_get_by_index+0x5e/0x80
[ 1509.385382][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1509.385382][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1509.385382][   T73]      ip6_route_add+0x1c/0x140
[ 1509.385382][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1509.385382][   T73]      addrconf_add_dev+0xe2/0x170
[ 1509.385382][   T73]      inet6_addr_add+0x12f/0xa40
[ 1509.385382][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1509.385382][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1509.385382][   T73]      netlink_rcv_skb+0x130/0x360
[ 1509.385382][   T73]      netlink_unicast+0x449/0x710
[ 1509.385382][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1509.385382][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1509.385382][   T73]      ___sys_sendmsg+0xee/0x170
[ 1509.385382][   T73]      __sys_sendmsg+0xcd/0x170
[ 1509.385382][   T73]      do_syscall_64+0xc6/0x1e0
[ 1509.385382][   T73] 
[ 1509.387608][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1509.387608][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1509.387608][   T73]      ipv6_find_idev+0x102/0x170
[ 1509.387608][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1509.387608][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1509.387608][   T73]      netlink_rcv_skb+0x130/0x360
[ 1509.387608][   T73]      netlink_unicast+0x449/0x710
[ 1509.387608][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1509.387608][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1509.387608][   T73]      ___sys_sendmsg+0xee/0x170
[ 1509.387608][   T73]      __sys_sendmsg+0xcd/0x170
[ 1509.387608][   T73]      do_syscall_64+0xc6/0x1e0
[ 1509.387608][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1509.387608][   T73] 
[ 1509.389407][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1509.389407][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1509.389407][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1509.389407][   T73]      ipv6_find_idev+0x102/0x170
[ 1509.389407][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1509.389407][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1509.389407][   T73]      netlink_rcv_skb+0x130/0x360
[ 1509.389407][   T73]      netlink_unicast+0x449/0x710
[ 1509.389407][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1509.389407][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1509.389407][   T73]      ___sys_sendmsg+0xee/0x170
[ 1509.389407][   T73]      __sys_sendmsg+0xcd/0x170
[ 1509.389407][   T73]      do_syscall_64+0xc6/0x1e0
[ 1509.389407][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1509.389407][   T73] 
[ 1509.391284][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1509.391622][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1509.391622][   T73]      netdev_get_by_index+0x5e/0x80
[ 1509.391622][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1509.391622][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1509.391622][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1509.391622][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1509.391622][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1509.391622][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1509.391622][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1509.391622][   T73]      addrconf_dad_begin+0x310/0x670
[ 1509.391622][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1509.391622][   T73]      process_one_work+0x84d/0x18a0
[ 1509.391622][   T73]      worker_thread+0x587/0xd30
[ 1509.391622][   T73]      kthread+0x28a/0x350
[ 1509.391622][   T73]      ret_from_fork+0x31/0x70
[ 1509.391622][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1509.391622][   T73] 
[ 1509.393725][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1509.393725][   T73]      netdev_get_by_index+0x5e/0x80
[ 1509.393725][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1509.393725][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1509.393725][   T73]      ip6_route_add+0x1c/0x140
[ 1509.393725][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1509.393725][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1509.393725][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1509.393725][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1509.393725][   T73]      netlink_rcv_skb+0x130/0x360
[ 1509.393725][   T73]      netlink_unicast+0x449/0x710
[ 1509.393725][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1509.393725][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1509.393725][   T73]      ___sys_sendmsg+0xee/0x170
[ 1509.393725][   T73]      __sys_sendmsg+0xcd/0x170
[ 1509.393725][   T73]      do_syscall_64+0xc6/0x1e0
[ 1509.393725][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1509.393725][   T73] 
[ 1509.395971][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1509.395971][   T73]      netdev_get_by_index+0x5e/0x80
[ 1509.395971][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1509.395971][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1509.395971][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1509.395971][   T73]      ipv6_add_addr+0x411/0x2000
[ 1509.395971][   T73]      inet6_addr_add+0x30e/0xa40
[ 1509.395971][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1509.395971][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1509.395971][   T73]      netlink_rcv_skb+0x130/0x360
[ 1509.395971][   T73]      netlink_unicast+0x449/0x710
[ 1509.395971][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1509.395971][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1509.395971][   T73]      ___sys_sendmsg+0xee/0x170
[ 1509.395971][   T73]      __sys_sendmsg+0xcd/0x170
[ 1509.395971][   T73]      do_syscall_64+0xc6/0x1e0
[ 1509.395971][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1509.395971][   T73] 
[ 1509.398227][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1509.398227][   T73]      netdev_get_by_index+0x5e/0x80
[ 1509.398227][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1509.398227][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1509.398227][   T73]      ip6_route_add+0x1c/0x140
[ 1509.398227][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1509.398227][   T73]      addrconf_add_dev+0xe2/0x170
[ 1509.398227][   T73]      inet6_addr_add+0x12f/0xa40
[ 1509.398227][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1509.398227][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1509.398227][   T73]      netlink_rcv_skb+0x130/0x360
[ 1509.398227][   T73]      netlink_unicast+0x449/0x710
[ 1509.398227][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1509.398227][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1509.398227][   T73]      ___sys_sendmsg+0xee/0x170
[ 1509.398227][   T73]      __sys_sendmsg+0xcd/0x170
[ 1509.398227][   T73]      do_syscall_64+0xc6/0x1e0
[ 1509.398227][   T73] 
[ 1509.400523][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1509.400523][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1509.400523][   T73]      ipv6_find_idev+0x102/0x170
[ 1509.400523][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1509.400523][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1509.400523][   T73]      netlink_rcv_skb+0x130/0x360
[ 1509.400523][   T73]      netlink_unicast+0x449/0x710
[ 1509.400523][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1509.400523][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1509.400523][   T73]      ___sys_sendmsg+0xee/0x170
[ 1509.400523][   T73]      __sys_sendmsg+0xcd/0x170
[ 1509.400523][   T73]      do_syscall_64+0xc6/0x1e0
[ 1509.400523][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1509.400523][   T73] 
[ 1509.402261][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1509.402261][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1509.402261][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1509.402261][   T73]      ipv6_find_idev+0x102/0x170
[ 1509.402261][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1509.402261][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1509.402261][   T73]      netlink_rcv_skb+0x130/0x360
[ 1509.402261][   T73]      netlink_unicast+0x449/0x710
[ 1509.402261][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1509.402261][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1509.402261][   T73]      ___sys_sendmsg+0xee/0x170
[ 1509.402261][   T73]      __sys_sendmsg+0xcd/0x170
[ 1509.402261][   T73]      do_syscall_64+0xc6/0x1e0
[ 1509.402261][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1509.402261][   T73] 
[ 1519.639797][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1519.640327][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1519.640327][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1519.640327][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1519.640327][   T73]      fib6_nh_init+0xa22/0x1580
[ 1519.640327][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1519.640327][   T73]      ip6_route_add+0x1c/0x140
[ 1519.640327][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1519.640327][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1519.640327][   T73]      netlink_rcv_skb+0x130/0x360
[ 1519.640327][   T73]      netlink_unicast+0x449/0x710
[ 1519.640327][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1519.640327][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1519.640327][   T73]      ___sys_sendmsg+0xee/0x170
[ 1519.640327][   T73]      __sys_sendmsg+0xcd/0x170
[ 1519.640327][   T73]      do_syscall_64+0xc6/0x1e0
[ 1519.640327][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1519.640327][   T73] 
[ 1519.642488][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1519.642488][   T73]      dst_init+0x84/0x4a0
[ 1519.642488][   T73]      dst_alloc+0x97/0x150
[ 1519.642488][   T73]      ip6_dst_alloc+0x23/0x90
[ 1519.642488][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1519.642488][   T73]      ip6_pol_route+0x56f/0x840
[ 1519.642488][   T73]      fib6_rule_lookup+0x456/0x630
[ 1519.642488][   T73]      ip6_route_input+0x59c/0xa50
[ 1519.642488][   T73]      ipv6_rcv+0x397/0x810
[ 1519.642488][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1519.642488][   T73]      process_backlog+0x101/0x620
[ 1519.642488][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1519.642488][   T73]      net_rx_action+0x495/0xbe0
[ 1519.642488][   T73]      __do_softirq+0x1b5/0x7f6
[ 1519.642488][   T73] 
[ 1519.644371][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1519.644371][   T73]      netdev_get_by_index+0x5e/0x80
[ 1519.644371][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1519.644371][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1519.644371][   T73]      ip6_route_add+0x1c/0x140
[ 1519.644371][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1519.644371][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1519.644371][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1519.644371][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1519.644371][   T73]      netlink_rcv_skb+0x130/0x360
[ 1519.644371][   T73]      netlink_unicast+0x449/0x710
[ 1519.644371][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1519.644371][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1519.644371][   T73]      ___sys_sendmsg+0xee/0x170
[ 1519.644371][   T73]      __sys_sendmsg+0xcd/0x170
[ 1519.644371][   T73]      do_syscall_64+0xc6/0x1e0
[ 1519.644371][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1519.644371][   T73] 
[ 1519.646636][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1519.646636][   T73]      netdev_get_by_index+0x5e/0x80
[ 1519.646636][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1519.646636][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1519.646636][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1519.646636][   T73]      ipv6_add_addr+0x411/0x2000
[ 1519.646636][   T73]      inet6_addr_add+0x30e/0xa40
[ 1519.646636][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1519.646636][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1519.646636][   T73]      netlink_rcv_skb+0x130/0x360
[ 1519.646636][   T73]      netlink_unicast+0x449/0x710
[ 1519.646636][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1519.646636][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1519.646636][   T73]      ___sys_sendmsg+0xee/0x170
[ 1519.646636][   T73]      __sys_sendmsg+0xcd/0x170
[ 1519.646636][   T73]      do_syscall_64+0xc6/0x1e0
[ 1519.646636][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1519.646636][   T73] 
[ 1519.648924][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1519.648924][   T73]      netdev_get_by_index+0x5e/0x80
[ 1519.648924][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1519.648924][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1519.648924][   T73]      ip6_route_add+0x1c/0x140
[ 1519.648924][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1519.648924][   T73]      addrconf_add_dev+0xe2/0x170
[ 1519.648924][   T73]      inet6_addr_add+0x12f/0xa40
[ 1519.648924][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1519.648924][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1519.648924][   T73]      netlink_rcv_skb+0x130/0x360
[ 1519.648924][   T73]      netlink_unicast+0x449/0x710
[ 1519.648924][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1519.648924][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1519.648924][   T73]      ___sys_sendmsg+0xee/0x170
[ 1519.648924][   T73]      __sys_sendmsg+0xcd/0x170
[ 1519.648924][   T73]      do_syscall_64+0xc6/0x1e0
[ 1519.648924][   T73] 
[ 1519.651151][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1519.651151][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1519.651151][   T73]      ipv6_find_idev+0x102/0x170
[ 1519.651151][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1519.651151][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1519.651151][   T73]      netlink_rcv_skb+0x130/0x360
[ 1519.651151][   T73]      netlink_unicast+0x449/0x710
[ 1519.651151][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1519.651151][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1519.651151][   T73]      ___sys_sendmsg+0xee/0x170
[ 1519.651151][   T73]      __sys_sendmsg+0xcd/0x170
[ 1519.651151][   T73]      do_syscall_64+0xc6/0x1e0
[ 1519.651151][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1519.651151][   T73] 
[ 1519.652888][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1519.652888][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1519.652888][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1519.652888][   T73]      ipv6_find_idev+0x102/0x170
[ 1519.652888][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1519.652888][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1519.652888][   T73]      netlink_rcv_skb+0x130/0x360
[ 1519.652888][   T73]      netlink_unicast+0x449/0x710
[ 1519.652888][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1519.652888][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1519.652888][   T73]      ___sys_sendmsg+0xee/0x170
[ 1519.652888][   T73]      __sys_sendmsg+0xcd/0x170
[ 1519.652888][   T73]      do_syscall_64+0xc6/0x1e0
[ 1519.652888][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1519.652888][   T73] 
[ 1519.654838][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1519.655154][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1519.655154][   T73]      netdev_get_by_index+0x5e/0x80
[ 1519.655154][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1519.655154][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1519.655154][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1519.655154][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1519.655154][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1519.655154][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1519.655154][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1519.655154][   T73]      addrconf_dad_begin+0x310/0x670
[ 1519.655154][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1519.655154][   T73]      process_one_work+0x84d/0x18a0
[ 1519.655154][   T73]      worker_thread+0x587/0xd30
[ 1519.655154][   T73]      kthread+0x28a/0x350
[ 1519.655154][   T73]      ret_from_fork+0x31/0x70
[ 1519.655154][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1519.655154][   T73] 
[ 1519.657329][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1519.657329][   T73]      netdev_get_by_index+0x5e/0x80
[ 1519.657329][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1519.657329][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1519.657329][   T73]      ip6_route_add+0x1c/0x140
[ 1519.657329][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1519.657329][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1519.657329][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1519.657329][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1519.657329][   T73]      netlink_rcv_skb+0x130/0x360
[ 1519.657329][   T73]      netlink_unicast+0x449/0x710
[ 1519.657329][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1519.657329][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1519.657329][   T73]      ___sys_sendmsg+0xee/0x170
[ 1519.657329][   T73]      __sys_sendmsg+0xcd/0x170
[ 1519.657329][   T73]      do_syscall_64+0xc6/0x1e0
[ 1519.657329][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1519.657329][   T73] 
[ 1519.659615][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1519.659615][   T73]      netdev_get_by_index+0x5e/0x80
[ 1519.659615][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1519.659615][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1519.659615][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1519.659615][   T73]      ipv6_add_addr+0x411/0x2000
[ 1519.659615][   T73]      inet6_addr_add+0x30e/0xa40
[ 1519.659615][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1519.659615][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1519.659615][   T73]      netlink_rcv_skb+0x130/0x360
[ 1519.659615][   T73]      netlink_unicast+0x449/0x710
[ 1519.659615][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1519.659615][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1519.659615][   T73]      ___sys_sendmsg+0xee/0x170
[ 1519.659615][   T73]      __sys_sendmsg+0xcd/0x170
[ 1519.659615][   T73]      do_syscall_64+0xc6/0x1e0
[ 1519.659615][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1519.659615][   T73] 
[ 1519.661886][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1519.661886][   T73]      netdev_get_by_index+0x5e/0x80
[ 1519.661886][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1519.661886][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1519.661886][   T73]      ip6_route_add+0x1c/0x140
[ 1519.661886][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1519.661886][   T73]      addrconf_add_dev+0xe2/0x170
[ 1519.661886][   T73]      inet6_addr_add+0x12f/0xa40
[ 1519.661886][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1519.661886][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1519.661886][   T73]      netlink_rcv_skb+0x130/0x360
[ 1519.661886][   T73]      netlink_unicast+0x449/0x710
[ 1519.661886][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1519.661886][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1519.661886][   T73]      ___sys_sendmsg+0xee/0x170
[ 1519.661886][   T73]      __sys_sendmsg+0xcd/0x170
[ 1519.661886][   T73]      do_syscall_64+0xc6/0x1e0
[ 1519.661886][   T73] 
[ 1519.664128][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1519.664128][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1519.664128][   T73]      ipv6_find_idev+0x102/0x170
[ 1519.664128][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1519.664128][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1519.664128][   T73]      netlink_rcv_skb+0x130/0x360
[ 1519.664128][   T73]      netlink_unicast+0x449/0x710
[ 1519.664128][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1519.664128][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1519.664128][   T73]      ___sys_sendmsg+0xee/0x170
[ 1519.664128][   T73]      __sys_sendmsg+0xcd/0x170
[ 1519.664128][   T73]      do_syscall_64+0xc6/0x1e0
[ 1519.664128][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1519.664128][   T73] 
[ 1519.665883][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1519.665883][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1519.665883][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1519.665883][   T73]      ipv6_find_idev+0x102/0x170
[ 1519.665883][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1519.665883][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1519.665883][   T73]      netlink_rcv_skb+0x130/0x360
[ 1519.665883][   T73]      netlink_unicast+0x449/0x710
[ 1519.665883][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1519.665883][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1519.665883][   T73]      ___sys_sendmsg+0xee/0x170
[ 1519.665883][   T73]      __sys_sendmsg+0xcd/0x170
[ 1519.665883][   T73]      do_syscall_64+0xc6/0x1e0
[ 1519.665883][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1519.665883][   T73] 
[ 1519.667813][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1519.668114][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1519.668114][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1519.668114][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1519.668114][   T73]      fib6_nh_init+0xa22/0x1580
[ 1519.668114][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1519.668114][   T73]      ip6_route_add+0x1c/0x140
[ 1519.668114][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1519.668114][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1519.668114][   T73]      netlink_rcv_skb+0x130/0x360
[ 1519.668114][   T73]      netlink_unicast+0x449/0x710
[ 1519.668114][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1519.668114][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1519.668114][   T73]      ___sys_sendmsg+0xee/0x170
[ 1519.668114][   T73]      __sys_sendmsg+0xcd/0x170
[ 1519.668114][   T73]      do_syscall_64+0xc6/0x1e0
[ 1519.668114][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1519.668114][   T73] 
[ 1519.670444][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1519.670444][   T73]      dst_init+0x84/0x4a0
[ 1519.670444][   T73]      dst_alloc+0x97/0x150
[ 1519.670444][   T73]      ip6_dst_alloc+0x23/0x90
[ 1519.670444][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1519.670444][   T73]      ip6_pol_route+0x56f/0x840
[ 1519.670444][   T73]      fib6_rule_lookup+0x456/0x630
[ 1519.670444][   T73]      ip6_route_input+0x59c/0xa50
[ 1519.670444][   T73]      ipv6_rcv+0x397/0x810
[ 1519.670444][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1519.670444][   T73]      process_backlog+0x101/0x620
[ 1519.670444][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1519.670444][   T73]      net_rx_action+0x495/0xbe0
[ 1519.670444][   T73]      __do_softirq+0x1b5/0x7f6
[ 1519.670444][   T73] 
[ 1519.672489][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1519.672489][   T73]      netdev_get_by_index+0x5e/0x80
[ 1519.672489][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1519.672489][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1519.672489][   T73]      ip6_route_add+0x1c/0x140
[ 1519.672489][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1519.672489][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1519.672489][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1519.672489][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1519.672489][   T73]      netlink_rcv_skb+0x130/0x360
[ 1519.672489][   T73]      netlink_unicast+0x449/0x710
[ 1519.672489][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1519.672489][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1519.672489][   T73]      ___sys_sendmsg+0xee/0x170
[ 1519.672489][   T73]      __sys_sendmsg+0xcd/0x170
[ 1519.672489][   T73]      do_syscall_64+0xc6/0x1e0
[ 1519.672489][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1519.672489][   T73] 
[ 1519.675020][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1519.675020][   T73]      netdev_get_by_index+0x5e/0x80
[ 1519.675020][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1519.675020][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1519.675020][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1519.675020][   T73]      ipv6_add_addr+0x411/0x2000
[ 1519.675020][   T73]      inet6_addr_add+0x30e/0xa40
[ 1519.675020][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1519.675020][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1519.675020][   T73]      netlink_rcv_skb+0x130/0x360
[ 1519.675020][   T73]      netlink_unicast+0x449/0x710
[ 1519.675020][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1519.675020][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1519.675020][   T73]      ___sys_sendmsg+0xee/0x170
[ 1519.675020][   T73]      __sys_sendmsg+0xcd/0x170
[ 1519.675020][   T73]      do_syscall_64+0xc6/0x1e0
[ 1519.675020][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1519.675020][   T73] 
[ 1519.677599][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1519.677599][   T73]      netdev_get_by_index+0x5e/0x80
[ 1519.677599][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1519.677599][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1519.677599][   T73]      ip6_route_add+0x1c/0x140
[ 1519.677599][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1519.677599][   T73]      addrconf_add_dev+0xe2/0x170
[ 1519.677599][   T73]      inet6_addr_add+0x12f/0xa40
[ 1519.677599][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1519.677599][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1519.677599][   T73]      netlink_rcv_skb+0x130/0x360
[ 1519.677599][   T73]      netlink_unicast+0x449/0x710
[ 1519.677599][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1519.677599][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1519.677599][   T73]      ___sys_sendmsg+0xee/0x170
[ 1519.677599][   T73]      __sys_sendmsg+0xcd/0x170
[ 1519.677599][   T73]      do_syscall_64+0xc6/0x1e0
[ 1519.677599][   T73] 
[ 1519.680030][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1519.680030][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1519.680030][   T73]      ipv6_find_idev+0x102/0x170
[ 1519.680030][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1519.680030][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1519.680030][   T73]      netlink_rcv_skb+0x130/0x360
[ 1519.680030][   T73]      netlink_unicast+0x449/0x710
[ 1519.680030][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1519.680030][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1519.680030][   T73]      ___sys_sendmsg+0xee/0x170
[ 1519.680030][   T73]      __sys_sendmsg+0xcd/0x170
[ 1519.680030][   T73]      do_syscall_64+0xc6/0x1e0
[ 1519.680030][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1519.680030][   T73] 
[ 1519.681973][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1519.681973][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1519.681973][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1519.681973][   T73]      ipv6_find_idev+0x102/0x170
[ 1519.681973][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1519.681973][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1519.681973][   T73]      netlink_rcv_skb+0x130/0x360
[ 1519.681973][   T73]      netlink_unicast+0x449/0x710
[ 1519.681973][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1519.681973][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1519.681973][   T73]      ___sys_sendmsg+0xee/0x170
[ 1519.681973][   T73]      __sys_sendmsg+0xcd/0x170
[ 1519.681973][   T73]      do_syscall_64+0xc6/0x1e0
[ 1519.681973][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1519.681973][   T73] 
[ 1519.684132][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1519.684442][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1519.684442][   T73]      netdev_get_by_index+0x5e/0x80
[ 1519.684442][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1519.684442][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1519.684442][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1519.684442][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1519.684442][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1519.684442][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1519.684442][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1519.684442][   T73]      addrconf_dad_begin+0x310/0x670
[ 1519.684442][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1519.684442][   T73]      process_one_work+0x84d/0x18a0
[ 1519.684442][   T73]      worker_thread+0x587/0xd30
[ 1519.684442][   T73]      kthread+0x28a/0x350
[ 1519.684442][   T73]      ret_from_fork+0x31/0x70
[ 1519.684442][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1519.684442][   T73] 
[ 1519.686867][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1519.686867][   T73]      netdev_get_by_index+0x5e/0x80
[ 1519.686867][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1519.686867][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1519.686867][   T73]      ip6_route_add+0x1c/0x140
[ 1519.686867][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1519.686867][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1519.686867][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1519.686867][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1519.686867][   T73]      netlink_rcv_skb+0x130/0x360
[ 1519.686867][   T73]      netlink_unicast+0x449/0x710
[ 1519.686867][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1519.686867][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1519.686867][   T73]      ___sys_sendmsg+0xee/0x170
[ 1519.686867][   T73]      __sys_sendmsg+0xcd/0x170
[ 1519.686867][   T73]      do_syscall_64+0xc6/0x1e0
[ 1519.686867][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1519.686867][   T73] 
[ 1519.689452][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1519.689452][   T73]      netdev_get_by_index+0x5e/0x80
[ 1519.689452][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1519.689452][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1519.689452][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1519.689452][   T73]      ipv6_add_addr+0x411/0x2000
[ 1519.689452][   T73]      inet6_addr_add+0x30e/0xa40
[ 1519.689452][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1519.689452][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1519.689452][   T73]      netlink_rcv_skb+0x130/0x360
[ 1519.689452][   T73]      netlink_unicast+0x449/0x710
[ 1519.689452][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1519.689452][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1519.689452][   T73]      ___sys_sendmsg+0xee/0x170
[ 1519.689452][   T73]      __sys_sendmsg+0xcd/0x170
[ 1519.689452][   T73]      do_syscall_64+0xc6/0x1e0
[ 1519.689452][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1519.689452][   T73] 
[ 1519.691925][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1519.691925][   T73]      netdev_get_by_index+0x5e/0x80
[ 1519.691925][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1519.691925][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1519.691925][   T73]      ip6_route_add+0x1c/0x140
[ 1519.691925][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1519.691925][   T73]      addrconf_add_dev+0xe2/0x170
[ 1519.691925][   T73]      inet6_addr_add+0x12f/0xa40
[ 1519.691925][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1519.691925][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1519.691925][   T73]      netlink_rcv_skb+0x130/0x360
[ 1519.691925][   T73]      netlink_unicast+0x449/0x710
[ 1519.691925][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1519.691925][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1519.691925][   T73]      ___sys_sendmsg+0xee/0x170
[ 1519.691925][   T73]      __sys_sendmsg+0xcd/0x170
[ 1519.691925][   T73]      do_syscall_64+0xc6/0x1e0
[ 1519.691925][   T73] 
[ 1519.694417][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1519.694417][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1519.694417][   T73]      ipv6_find_idev+0x102/0x170
[ 1519.694417][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1519.694417][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1519.694417][   T73]      netlink_rcv_skb+0x130/0x360
[ 1519.694417][   T73]      netlink_unicast+0x449/0x710
[ 1519.694417][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1519.694417][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1519.694417][   T73]      ___sys_sendmsg+0xee/0x170
[ 1519.694417][   T73]      __sys_sendmsg+0xcd/0x170
[ 1519.694417][   T73]      do_syscall_64+0xc6/0x1e0
[ 1519.694417][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1519.694417][   T73] 
[ 1519.696348][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1519.696348][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1519.696348][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1519.696348][   T73]      ipv6_find_idev+0x102/0x170
[ 1519.696348][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1519.696348][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1519.696348][   T73]      netlink_rcv_skb+0x130/0x360
[ 1519.696348][   T73]      netlink_unicast+0x449/0x710
[ 1519.696348][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1519.696348][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1519.696348][   T73]      ___sys_sendmsg+0xee/0x170
[ 1519.696348][   T73]      __sys_sendmsg+0xcd/0x170
[ 1519.696348][   T73]      do_syscall_64+0xc6/0x1e0
[ 1519.696348][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1519.696348][   T73] 
[ 1529.935813][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1529.936317][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1529.936317][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1529.936317][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1529.936317][   T73]      fib6_nh_init+0xa22/0x1580
[ 1529.936317][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1529.936317][   T73]      ip6_route_add+0x1c/0x140
[ 1529.936317][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1529.936317][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1529.936317][   T73]      netlink_rcv_skb+0x130/0x360
[ 1529.936317][   T73]      netlink_unicast+0x449/0x710
[ 1529.936317][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1529.936317][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1529.936317][   T73]      ___sys_sendmsg+0xee/0x170
[ 1529.936317][   T73]      __sys_sendmsg+0xcd/0x170
[ 1529.936317][   T73]      do_syscall_64+0xc6/0x1e0
[ 1529.936317][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1529.936317][   T73] 
[ 1529.939011][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1529.939011][   T73]      dst_init+0x84/0x4a0
[ 1529.939011][   T73]      dst_alloc+0x97/0x150
[ 1529.939011][   T73]      ip6_dst_alloc+0x23/0x90
[ 1529.939011][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1529.939011][   T73]      ip6_pol_route+0x56f/0x840
[ 1529.939011][   T73]      fib6_rule_lookup+0x456/0x630
[ 1529.939011][   T73]      ip6_route_input+0x59c/0xa50
[ 1529.939011][   T73]      ipv6_rcv+0x397/0x810
[ 1529.939011][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1529.939011][   T73]      process_backlog+0x101/0x620
[ 1529.939011][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1529.939011][   T73]      net_rx_action+0x495/0xbe0
[ 1529.939011][   T73]      __do_softirq+0x1b5/0x7f6
[ 1529.939011][   T73] 
[ 1529.940910][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1529.940910][   T73]      netdev_get_by_index+0x5e/0x80
[ 1529.940910][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1529.940910][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1529.940910][   T73]      ip6_route_add+0x1c/0x140
[ 1529.940910][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1529.940910][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1529.940910][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1529.940910][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1529.940910][   T73]      netlink_rcv_skb+0x130/0x360
[ 1529.940910][   T73]      netlink_unicast+0x449/0x710
[ 1529.940910][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1529.940910][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1529.940910][   T73]      ___sys_sendmsg+0xee/0x170
[ 1529.940910][   T73]      __sys_sendmsg+0xcd/0x170
[ 1529.940910][   T73]      do_syscall_64+0xc6/0x1e0
[ 1529.940910][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1529.940910][   T73] 
[ 1529.943194][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1529.943194][   T73]      netdev_get_by_index+0x5e/0x80
[ 1529.943194][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1529.943194][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1529.943194][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1529.943194][   T73]      ipv6_add_addr+0x411/0x2000
[ 1529.943194][   T73]      inet6_addr_add+0x30e/0xa40
[ 1529.943194][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1529.943194][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1529.943194][   T73]      netlink_rcv_skb+0x130/0x360
[ 1529.943194][   T73]      netlink_unicast+0x449/0x710
[ 1529.943194][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1529.943194][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1529.943194][   T73]      ___sys_sendmsg+0xee/0x170
[ 1529.943194][   T73]      __sys_sendmsg+0xcd/0x170
[ 1529.943194][   T73]      do_syscall_64+0xc6/0x1e0
[ 1529.943194][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1529.943194][   T73] 
[ 1529.945478][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1529.945478][   T73]      netdev_get_by_index+0x5e/0x80
[ 1529.945478][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1529.945478][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1529.945478][   T73]      ip6_route_add+0x1c/0x140
[ 1529.945478][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1529.945478][   T73]      addrconf_add_dev+0xe2/0x170
[ 1529.945478][   T73]      inet6_addr_add+0x12f/0xa40
[ 1529.945478][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1529.945478][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1529.945478][   T73]      netlink_rcv_skb+0x130/0x360
[ 1529.945478][   T73]      netlink_unicast+0x449/0x710
[ 1529.945478][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1529.945478][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1529.945478][   T73]      ___sys_sendmsg+0xee/0x170
[ 1529.945478][   T73]      __sys_sendmsg+0xcd/0x170
[ 1529.945478][   T73]      do_syscall_64+0xc6/0x1e0
[ 1529.945478][   T73] 
[ 1529.947726][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1529.947726][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1529.947726][   T73]      ipv6_find_idev+0x102/0x170
[ 1529.947726][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1529.947726][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1529.947726][   T73]      netlink_rcv_skb+0x130/0x360
[ 1529.947726][   T73]      netlink_unicast+0x449/0x710
[ 1529.947726][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1529.947726][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1529.947726][   T73]      ___sys_sendmsg+0xee/0x170
[ 1529.947726][   T73]      __sys_sendmsg+0xcd/0x170
[ 1529.947726][   T73]      do_syscall_64+0xc6/0x1e0
[ 1529.947726][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1529.947726][   T73] 
[ 1529.949874][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1529.949874][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1529.949874][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1529.949874][   T73]      ipv6_find_idev+0x102/0x170
[ 1529.949874][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1529.949874][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1529.949874][   T73]      netlink_rcv_skb+0x130/0x360
[ 1529.949874][   T73]      netlink_unicast+0x449/0x710
[ 1529.949874][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1529.949874][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1529.949874][   T73]      ___sys_sendmsg+0xee/0x170
[ 1529.949874][   T73]      __sys_sendmsg+0xcd/0x170
[ 1529.949874][   T73]      do_syscall_64+0xc6/0x1e0
[ 1529.949874][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1529.949874][   T73] 
[ 1529.951824][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1529.952135][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1529.952135][   T73]      netdev_get_by_index+0x5e/0x80
[ 1529.952135][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1529.952135][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1529.952135][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1529.952135][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1529.952135][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1529.952135][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1529.952135][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1529.952135][   T73]      addrconf_dad_begin+0x310/0x670
[ 1529.952135][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1529.952135][   T73]      process_one_work+0x84d/0x18a0
[ 1529.952135][   T73]      worker_thread+0x587/0xd30
[ 1529.952135][   T73]      kthread+0x28a/0x350
[ 1529.952135][   T73]      ret_from_fork+0x31/0x70
[ 1529.952135][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1529.952135][   T73] 
[ 1529.954310][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1529.954310][   T73]      netdev_get_by_index+0x5e/0x80
[ 1529.954310][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1529.954310][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1529.954310][   T73]      ip6_route_add+0x1c/0x140
[ 1529.954310][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1529.954310][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1529.954310][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1529.954310][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1529.954310][   T73]      netlink_rcv_skb+0x130/0x360
[ 1529.954310][   T73]      netlink_unicast+0x449/0x710
[ 1529.954310][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1529.954310][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1529.954310][   T73]      ___sys_sendmsg+0xee/0x170
[ 1529.954310][   T73]      __sys_sendmsg+0xcd/0x170
[ 1529.954310][   T73]      do_syscall_64+0xc6/0x1e0
[ 1529.954310][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1529.954310][   T73] 
[ 1529.956580][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1529.956580][   T73]      netdev_get_by_index+0x5e/0x80
[ 1529.956580][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1529.956580][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1529.956580][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1529.956580][   T73]      ipv6_add_addr+0x411/0x2000
[ 1529.956580][   T73]      inet6_addr_add+0x30e/0xa40
[ 1529.956580][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1529.956580][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1529.956580][   T73]      netlink_rcv_skb+0x130/0x360
[ 1529.956580][   T73]      netlink_unicast+0x449/0x710
[ 1529.956580][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1529.956580][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1529.956580][   T73]      ___sys_sendmsg+0xee/0x170
[ 1529.956580][   T73]      __sys_sendmsg+0xcd/0x170
[ 1529.956580][   T73]      do_syscall_64+0xc6/0x1e0
[ 1529.956580][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1529.956580][   T73] 
[ 1529.958860][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1529.958860][   T73]      netdev_get_by_index+0x5e/0x80
[ 1529.958860][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1529.958860][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1529.958860][   T73]      ip6_route_add+0x1c/0x140
[ 1529.958860][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1529.958860][   T73]      addrconf_add_dev+0xe2/0x170
[ 1529.958860][   T73]      inet6_addr_add+0x12f/0xa40
[ 1529.958860][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1529.958860][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1529.958860][   T73]      netlink_rcv_skb+0x130/0x360
[ 1529.958860][   T73]      netlink_unicast+0x449/0x710
[ 1529.958860][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1529.958860][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1529.958860][   T73]      ___sys_sendmsg+0xee/0x170
[ 1529.958860][   T73]      __sys_sendmsg+0xcd/0x170
[ 1529.958860][   T73]      do_syscall_64+0xc6/0x1e0
[ 1529.958860][   T73] 
[ 1529.961108][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1529.961108][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1529.961108][   T73]      ipv6_find_idev+0x102/0x170
[ 1529.961108][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1529.961108][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1529.961108][   T73]      netlink_rcv_skb+0x130/0x360
[ 1529.961108][   T73]      netlink_unicast+0x449/0x710
[ 1529.961108][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1529.961108][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1529.961108][   T73]      ___sys_sendmsg+0xee/0x170
[ 1529.961108][   T73]      __sys_sendmsg+0xcd/0x170
[ 1529.961108][   T73]      do_syscall_64+0xc6/0x1e0
[ 1529.961108][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1529.961108][   T73] 
[ 1529.962862][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1529.962862][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1529.962862][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1529.962862][   T73]      ipv6_find_idev+0x102/0x170
[ 1529.962862][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1529.962862][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1529.962862][   T73]      netlink_rcv_skb+0x130/0x360
[ 1529.962862][   T73]      netlink_unicast+0x449/0x710
[ 1529.962862][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1529.962862][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1529.962862][   T73]      ___sys_sendmsg+0xee/0x170
[ 1529.962862][   T73]      __sys_sendmsg+0xcd/0x170
[ 1529.962862][   T73]      do_syscall_64+0xc6/0x1e0
[ 1529.962862][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1529.962862][   T73] 
[ 1529.964793][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1529.965100][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1529.965100][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1529.965100][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1529.965100][   T73]      fib6_nh_init+0xa22/0x1580
[ 1529.965100][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1529.965100][   T73]      ip6_route_add+0x1c/0x140
[ 1529.965100][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1529.965100][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1529.965100][   T73]      netlink_rcv_skb+0x130/0x360
[ 1529.965100][   T73]      netlink_unicast+0x449/0x710
[ 1529.965100][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1529.965100][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1529.965100][   T73]      ___sys_sendmsg+0xee/0x170
[ 1529.965100][   T73]      __sys_sendmsg+0xcd/0x170
[ 1529.965100][   T73]      do_syscall_64+0xc6/0x1e0
[ 1529.965100][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1529.965100][   T73] 
[ 1529.967425][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1529.967425][   T73]      dst_init+0x84/0x4a0
[ 1529.967425][   T73]      dst_alloc+0x97/0x150
[ 1529.967425][   T73]      ip6_dst_alloc+0x23/0x90
[ 1529.967425][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1529.967425][   T73]      ip6_pol_route+0x56f/0x840
[ 1529.967425][   T73]      fib6_rule_lookup+0x456/0x630
[ 1529.967425][   T73]      ip6_route_input+0x59c/0xa50
[ 1529.967425][   T73]      ipv6_rcv+0x397/0x810
[ 1529.967425][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1529.967425][   T73]      process_backlog+0x101/0x620
[ 1529.967425][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1529.967425][   T73]      net_rx_action+0x495/0xbe0
[ 1529.967425][   T73]      __do_softirq+0x1b5/0x7f6
[ 1529.967425][   T73] 
[ 1529.969525][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1529.969525][   T73]      netdev_get_by_index+0x5e/0x80
[ 1529.969525][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1529.969525][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1529.969525][   T73]      ip6_route_add+0x1c/0x140
[ 1529.969525][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1529.969525][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1529.969525][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1529.969525][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1529.969525][   T73]      netlink_rcv_skb+0x130/0x360
[ 1529.969525][   T73]      netlink_unicast+0x449/0x710
[ 1529.969525][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1529.969525][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1529.969525][   T73]      ___sys_sendmsg+0xee/0x170
[ 1529.969525][   T73]      __sys_sendmsg+0xcd/0x170
[ 1529.969525][   T73]      do_syscall_64+0xc6/0x1e0
[ 1529.969525][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1529.969525][   T73] 
[ 1529.972052][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1529.972052][   T73]      netdev_get_by_index+0x5e/0x80
[ 1529.972052][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1529.972052][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1529.972052][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1529.972052][   T73]      ipv6_add_addr+0x411/0x2000
[ 1529.972052][   T73]      inet6_addr_add+0x30e/0xa40
[ 1529.972052][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1529.972052][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1529.972052][   T73]      netlink_rcv_skb+0x130/0x360
[ 1529.972052][   T73]      netlink_unicast+0x449/0x710
[ 1529.972052][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1529.972052][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1529.972052][   T73]      ___sys_sendmsg+0xee/0x170
[ 1529.972052][   T73]      __sys_sendmsg+0xcd/0x170
[ 1529.972052][   T73]      do_syscall_64+0xc6/0x1e0
[ 1529.972052][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1529.972052][   T73] 
[ 1529.974573][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1529.974573][   T73]      netdev_get_by_index+0x5e/0x80
[ 1529.974573][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1529.974573][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1529.974573][   T73]      ip6_route_add+0x1c/0x140
[ 1529.974573][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1529.974573][   T73]      addrconf_add_dev+0xe2/0x170
[ 1529.974573][   T73]      inet6_addr_add+0x12f/0xa40
[ 1529.974573][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1529.974573][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1529.974573][   T73]      netlink_rcv_skb+0x130/0x360
[ 1529.974573][   T73]      netlink_unicast+0x449/0x710
[ 1529.974573][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1529.974573][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1529.974573][   T73]      ___sys_sendmsg+0xee/0x170
[ 1529.974573][   T73]      __sys_sendmsg+0xcd/0x170
[ 1529.974573][   T73]      do_syscall_64+0xc6/0x1e0
[ 1529.974573][   T73] 
[ 1529.977006][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1529.977006][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1529.977006][   T73]      ipv6_find_idev+0x102/0x170
[ 1529.977006][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1529.977006][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1529.977006][   T73]      netlink_rcv_skb+0x130/0x360
[ 1529.977006][   T73]      netlink_unicast+0x449/0x710
[ 1529.977006][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1529.977006][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1529.977006][   T73]      ___sys_sendmsg+0xee/0x170
[ 1529.977006][   T73]      __sys_sendmsg+0xcd/0x170
[ 1529.977006][   T73]      do_syscall_64+0xc6/0x1e0
[ 1529.977006][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1529.977006][   T73] 
[ 1529.979021][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1529.979021][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1529.979021][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1529.979021][   T73]      ipv6_find_idev+0x102/0x170
[ 1529.979021][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1529.979021][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1529.979021][   T73]      netlink_rcv_skb+0x130/0x360
[ 1529.979021][   T73]      netlink_unicast+0x449/0x710
[ 1529.979021][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1529.979021][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1529.979021][   T73]      ___sys_sendmsg+0xee/0x170
[ 1529.979021][   T73]      __sys_sendmsg+0xcd/0x170
[ 1529.979021][   T73]      do_syscall_64+0xc6/0x1e0
[ 1529.979021][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1529.979021][   T73] 
[ 1529.981196][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1529.981503][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1529.981503][   T73]      netdev_get_by_index+0x5e/0x80
[ 1529.981503][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1529.981503][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1529.981503][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1529.981503][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1529.981503][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1529.981503][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1529.981503][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1529.981503][   T73]      addrconf_dad_begin+0x310/0x670
[ 1529.981503][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1529.981503][   T73]      process_one_work+0x84d/0x18a0
[ 1529.981503][   T73]      worker_thread+0x587/0xd30
[ 1529.981503][   T73]      kthread+0x28a/0x350
[ 1529.981503][   T73]      ret_from_fork+0x31/0x70
[ 1529.981503][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1529.981503][   T73] 
[ 1529.983923][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1529.983923][   T73]      netdev_get_by_index+0x5e/0x80
[ 1529.983923][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1529.983923][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1529.983923][   T73]      ip6_route_add+0x1c/0x140
[ 1529.983923][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1529.983923][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1529.983923][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1529.983923][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1529.983923][   T73]      netlink_rcv_skb+0x130/0x360
[ 1529.983923][   T73]      netlink_unicast+0x449/0x710
[ 1529.983923][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1529.983923][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1529.983923][   T73]      ___sys_sendmsg+0xee/0x170
[ 1529.983923][   T73]      __sys_sendmsg+0xcd/0x170
[ 1529.983923][   T73]      do_syscall_64+0xc6/0x1e0
[ 1529.983923][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1529.983923][   T73] 
[ 1529.986456][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1529.986456][   T73]      netdev_get_by_index+0x5e/0x80
[ 1529.986456][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1529.986456][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1529.986456][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1529.986456][   T73]      ipv6_add_addr+0x411/0x2000
[ 1529.986456][   T73]      inet6_addr_add+0x30e/0xa40
[ 1529.986456][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1529.986456][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1529.986456][   T73]      netlink_rcv_skb+0x130/0x360
[ 1529.986456][   T73]      netlink_unicast+0x449/0x710
[ 1529.986456][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1529.986456][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1529.986456][   T73]      ___sys_sendmsg+0xee/0x170
[ 1529.986456][   T73]      __sys_sendmsg+0xcd/0x170
[ 1529.986456][   T73]      do_syscall_64+0xc6/0x1e0
[ 1529.986456][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1529.986456][   T73] 
[ 1529.989276][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1529.989276][   T73]      netdev_get_by_index+0x5e/0x80
[ 1529.989276][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1529.989276][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1529.989276][   T73]      ip6_route_add+0x1c/0x140
[ 1529.989276][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1529.989276][   T73]      addrconf_add_dev+0xe2/0x170
[ 1529.989276][   T73]      inet6_addr_add+0x12f/0xa40
[ 1529.989276][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1529.989276][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1529.989276][   T73]      netlink_rcv_skb+0x130/0x360
[ 1529.989276][   T73]      netlink_unicast+0x449/0x710
[ 1529.989276][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1529.989276][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1529.989276][   T73]      ___sys_sendmsg+0xee/0x170
[ 1529.989276][   T73]      __sys_sendmsg+0xcd/0x170
[ 1529.989276][   T73]      do_syscall_64+0xc6/0x1e0
[ 1529.989276][   T73] 
[ 1529.991870][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1529.991870][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1529.991870][   T73]      ipv6_find_idev+0x102/0x170
[ 1529.991870][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1529.991870][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1529.991870][   T73]      netlink_rcv_skb+0x130/0x360
[ 1529.991870][   T73]      netlink_unicast+0x449/0x710
[ 1529.991870][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1529.991870][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1529.991870][   T73]      ___sys_sendmsg+0xee/0x170
[ 1529.991870][   T73]      __sys_sendmsg+0xcd/0x170
[ 1529.991870][   T73]      do_syscall_64+0xc6/0x1e0
[ 1529.991870][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1529.991870][   T73] 
[ 1529.993800][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1529.993800][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1529.993800][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1529.993800][   T73]      ipv6_find_idev+0x102/0x170
[ 1529.993800][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1529.993800][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1529.993800][   T73]      netlink_rcv_skb+0x130/0x360
[ 1529.993800][   T73]      netlink_unicast+0x449/0x710
[ 1529.993800][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1529.993800][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1529.993800][   T73]      ___sys_sendmsg+0xee/0x170
[ 1529.993800][   T73]      __sys_sendmsg+0xcd/0x170
[ 1529.993800][   T73]      do_syscall_64+0xc6/0x1e0
[ 1529.993800][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1529.993800][   T73] 
[ 1539.999823][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1540.000314][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1540.000314][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1540.000314][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1540.000314][   T73]      fib6_nh_init+0xa22/0x1580
[ 1540.000314][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1540.000314][   T73]      ip6_route_add+0x1c/0x140
[ 1540.000314][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1540.000314][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1540.000314][   T73]      netlink_rcv_skb+0x130/0x360
[ 1540.000314][   T73]      netlink_unicast+0x449/0x710
[ 1540.000314][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1540.000314][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1540.000314][   T73]      ___sys_sendmsg+0xee/0x170
[ 1540.000314][   T73]      __sys_sendmsg+0xcd/0x170
[ 1540.000314][   T73]      do_syscall_64+0xc6/0x1e0
[ 1540.000314][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1540.000314][   T73] 
[ 1540.002230][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1540.002230][   T73]      dst_init+0x84/0x4a0
[ 1540.002230][   T73]      dst_alloc+0x97/0x150
[ 1540.002230][   T73]      ip6_dst_alloc+0x23/0x90
[ 1540.002230][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1540.002230][   T73]      ip6_pol_route+0x56f/0x840
[ 1540.002230][   T73]      fib6_rule_lookup+0x456/0x630
[ 1540.002230][   T73]      ip6_route_input+0x59c/0xa50
[ 1540.002230][   T73]      ipv6_rcv+0x397/0x810
[ 1540.002230][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1540.002230][   T73]      process_backlog+0x101/0x620
[ 1540.002230][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1540.002230][   T73]      net_rx_action+0x495/0xbe0
[ 1540.002230][   T73]      __do_softirq+0x1b5/0x7f6
[ 1540.002230][   T73] 
[ 1540.003893][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1540.003893][   T73]      netdev_get_by_index+0x5e/0x80
[ 1540.003893][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1540.003893][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1540.003893][   T73]      ip6_route_add+0x1c/0x140
[ 1540.003893][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1540.003893][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1540.003893][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1540.003893][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1540.003893][   T73]      netlink_rcv_skb+0x130/0x360
[ 1540.003893][   T73]      netlink_unicast+0x449/0x710
[ 1540.003893][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1540.003893][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1540.003893][   T73]      ___sys_sendmsg+0xee/0x170
[ 1540.003893][   T73]      __sys_sendmsg+0xcd/0x170
[ 1540.003893][   T73]      do_syscall_64+0xc6/0x1e0
[ 1540.003893][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1540.003893][   T73] 
[ 1540.005917][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1540.005917][   T73]      netdev_get_by_index+0x5e/0x80
[ 1540.005917][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1540.005917][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1540.005917][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1540.005917][   T73]      ipv6_add_addr+0x411/0x2000
[ 1540.005917][   T73]      inet6_addr_add+0x30e/0xa40
[ 1540.005917][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1540.005917][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1540.005917][   T73]      netlink_rcv_skb+0x130/0x360
[ 1540.005917][   T73]      netlink_unicast+0x449/0x710
[ 1540.005917][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1540.005917][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1540.005917][   T73]      ___sys_sendmsg+0xee/0x170
[ 1540.005917][   T73]      __sys_sendmsg+0xcd/0x170
[ 1540.005917][   T73]      do_syscall_64+0xc6/0x1e0
[ 1540.005917][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1540.005917][   T73] 
[ 1540.007967][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1540.007967][   T73]      netdev_get_by_index+0x5e/0x80
[ 1540.007967][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1540.007967][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1540.007967][   T73]      ip6_route_add+0x1c/0x140
[ 1540.007967][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1540.007967][   T73]      addrconf_add_dev+0xe2/0x170
[ 1540.007967][   T73]      inet6_addr_add+0x12f/0xa40
[ 1540.007967][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1540.007967][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1540.007967][   T73]      netlink_rcv_skb+0x130/0x360
[ 1540.007967][   T73]      netlink_unicast+0x449/0x710
[ 1540.007967][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1540.007967][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1540.007967][   T73]      ___sys_sendmsg+0xee/0x170
[ 1540.007967][   T73]      __sys_sendmsg+0xcd/0x170
[ 1540.007967][   T73]      do_syscall_64+0xc6/0x1e0
[ 1540.007967][   T73] 
[ 1540.009946][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1540.009946][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1540.009946][   T73]      ipv6_find_idev+0x102/0x170
[ 1540.009946][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1540.009946][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1540.009946][   T73]      netlink_rcv_skb+0x130/0x360
[ 1540.009946][   T73]      netlink_unicast+0x449/0x710
[ 1540.009946][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1540.009946][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1540.009946][   T73]      ___sys_sendmsg+0xee/0x170
[ 1540.009946][   T73]      __sys_sendmsg+0xcd/0x170
[ 1540.009946][   T73]      do_syscall_64+0xc6/0x1e0
[ 1540.009946][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1540.009946][   T73] 
[ 1540.011497][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1540.011497][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1540.011497][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1540.011497][   T73]      ipv6_find_idev+0x102/0x170
[ 1540.011497][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1540.011497][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1540.011497][   T73]      netlink_rcv_skb+0x130/0x360
[ 1540.011497][   T73]      netlink_unicast+0x449/0x710
[ 1540.011497][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1540.011497][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1540.011497][   T73]      ___sys_sendmsg+0xee/0x170
[ 1540.011497][   T73]      __sys_sendmsg+0xcd/0x170
[ 1540.011497][   T73]      do_syscall_64+0xc6/0x1e0
[ 1540.011497][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1540.011497][   T73] 
[ 1540.013211][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1540.013531][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1540.013531][   T73]      netdev_get_by_index+0x5e/0x80
[ 1540.013531][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1540.013531][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1540.013531][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1540.013531][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1540.013531][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1540.013531][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1540.013531][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1540.013531][   T73]      addrconf_dad_begin+0x310/0x670
[ 1540.013531][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1540.013531][   T73]      process_one_work+0x84d/0x18a0
[ 1540.013531][   T73]      worker_thread+0x587/0xd30
[ 1540.013531][   T73]      kthread+0x28a/0x350
[ 1540.013531][   T73]      ret_from_fork+0x31/0x70
[ 1540.013531][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1540.013531][   T73] 
[ 1540.016753][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1540.016753][   T73]      netdev_get_by_index+0x5e/0x80
[ 1540.016753][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1540.016753][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1540.016753][   T73]      ip6_route_add+0x1c/0x140
[ 1540.016753][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1540.016753][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1540.016753][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1540.016753][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1540.016753][   T73]      netlink_rcv_skb+0x130/0x360
[ 1540.016753][   T73]      netlink_unicast+0x449/0x710
[ 1540.016753][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1540.016753][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1540.016753][   T73]      ___sys_sendmsg+0xee/0x170
[ 1540.016753][   T73]      __sys_sendmsg+0xcd/0x170
[ 1540.016753][   T73]      do_syscall_64+0xc6/0x1e0
[ 1540.016753][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1540.016753][   T73] 
[ 1540.020114][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1540.020114][   T73]      netdev_get_by_index+0x5e/0x80
[ 1540.020114][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1540.020114][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1540.020114][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1540.020114][   T73]      ipv6_add_addr+0x411/0x2000
[ 1540.020114][   T73]      inet6_addr_add+0x30e/0xa40
[ 1540.020114][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1540.020114][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1540.020114][   T73]      netlink_rcv_skb+0x130/0x360
[ 1540.020114][   T73]      netlink_unicast+0x449/0x710
[ 1540.020114][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1540.020114][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1540.020114][   T73]      ___sys_sendmsg+0xee/0x170
[ 1540.020114][   T73]      __sys_sendmsg+0xcd/0x170
[ 1540.020114][   T73]      do_syscall_64+0xc6/0x1e0
[ 1540.020114][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1540.020114][   T73] 
[ 1540.023418][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1540.023418][   T73]      netdev_get_by_index+0x5e/0x80
[ 1540.023418][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1540.023418][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1540.023418][   T73]      ip6_route_add+0x1c/0x140
[ 1540.023418][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1540.023418][   T73]      addrconf_add_dev+0xe2/0x170
[ 1540.023418][   T73]      inet6_addr_add+0x12f/0xa40
[ 1540.023418][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1540.023418][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1540.023418][   T73]      netlink_rcv_skb+0x130/0x360
[ 1540.023418][   T73]      netlink_unicast+0x449/0x710
[ 1540.023418][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1540.023418][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1540.023418][   T73]      ___sys_sendmsg+0xee/0x170
[ 1540.023418][   T73]      __sys_sendmsg+0xcd/0x170
[ 1540.023418][   T73]      do_syscall_64+0xc6/0x1e0
[ 1540.023418][   T73] 
[ 1540.026685][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1540.026685][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1540.026685][   T73]      ipv6_find_idev+0x102/0x170
[ 1540.026685][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1540.026685][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1540.026685][   T73]      netlink_rcv_skb+0x130/0x360
[ 1540.026685][   T73]      netlink_unicast+0x449/0x710
[ 1540.026685][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1540.026685][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1540.026685][   T73]      ___sys_sendmsg+0xee/0x170
[ 1540.026685][   T73]      __sys_sendmsg+0xcd/0x170
[ 1540.026685][   T73]      do_syscall_64+0xc6/0x1e0
[ 1540.026685][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1540.026685][   T73] 
[ 1540.029823][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1540.029823][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1540.029823][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1540.029823][   T73]      ipv6_find_idev+0x102/0x170
[ 1540.029823][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1540.029823][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1540.029823][   T73]      netlink_rcv_skb+0x130/0x360
[ 1540.029823][   T73]      netlink_unicast+0x449/0x710
[ 1540.029823][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1540.029823][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1540.029823][   T73]      ___sys_sendmsg+0xee/0x170
[ 1540.029823][   T73]      __sys_sendmsg+0xcd/0x170
[ 1540.029823][   T73]      do_syscall_64+0xc6/0x1e0
[ 1540.029823][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1540.029823][   T73] 
[ 1540.032602][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1540.033079][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1540.033079][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1540.033079][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1540.033079][   T73]      fib6_nh_init+0xa22/0x1580
[ 1540.033079][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1540.033079][   T73]      ip6_route_add+0x1c/0x140
[ 1540.033079][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1540.033079][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1540.033079][   T73]      netlink_rcv_skb+0x130/0x360
[ 1540.033079][   T73]      netlink_unicast+0x449/0x710
[ 1540.033079][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1540.033079][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1540.033079][   T73]      ___sys_sendmsg+0xee/0x170
[ 1540.033079][   T73]      __sys_sendmsg+0xcd/0x170
[ 1540.033079][   T73]      do_syscall_64+0xc6/0x1e0
[ 1540.033079][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1540.033079][   T73] 
[ 1540.036511][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1540.036511][   T73]      dst_init+0x84/0x4a0
[ 1540.036511][   T73]      dst_alloc+0x97/0x150
[ 1540.036511][   T73]      ip6_dst_alloc+0x23/0x90
[ 1540.036511][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1540.036511][   T73]      ip6_pol_route+0x56f/0x840
[ 1540.036511][   T73]      fib6_rule_lookup+0x456/0x630
[ 1540.036511][   T73]      ip6_route_input+0x59c/0xa50
[ 1540.036511][   T73]      ipv6_rcv+0x397/0x810
[ 1540.036511][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1540.036511][   T73]      process_backlog+0x101/0x620
[ 1540.036511][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1540.036511][   T73]      net_rx_action+0x495/0xbe0
[ 1540.036511][   T73]      __do_softirq+0x1b5/0x7f6
[ 1540.036511][   T73] 
[ 1540.039509][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1540.039509][   T73]      netdev_get_by_index+0x5e/0x80
[ 1540.039509][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1540.039509][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1540.039509][   T73]      ip6_route_add+0x1c/0x140
[ 1540.039509][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1540.039509][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1540.039509][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1540.039509][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1540.039509][   T73]      netlink_rcv_skb+0x130/0x360
[ 1540.039509][   T73]      netlink_unicast+0x449/0x710
[ 1540.039509][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1540.039509][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1540.039509][   T73]      ___sys_sendmsg+0xee/0x170
[ 1540.039509][   T73]      __sys_sendmsg+0xcd/0x170
[ 1540.039509][   T73]      do_syscall_64+0xc6/0x1e0
[ 1540.039509][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1540.039509][   T73] 
[ 1540.043092][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1540.043092][   T73]      netdev_get_by_index+0x5e/0x80
[ 1540.043092][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1540.043092][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1540.043092][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1540.043092][   T73]      ipv6_add_addr+0x411/0x2000
[ 1540.043092][   T73]      inet6_addr_add+0x30e/0xa40
[ 1540.043092][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1540.043092][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1540.043092][   T73]      netlink_rcv_skb+0x130/0x360
[ 1540.043092][   T73]      netlink_unicast+0x449/0x710
[ 1540.043092][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1540.043092][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1540.043092][   T73]      ___sys_sendmsg+0xee/0x170
[ 1540.043092][   T73]      __sys_sendmsg+0xcd/0x170
[ 1540.043092][   T73]      do_syscall_64+0xc6/0x1e0
[ 1540.043092][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1540.043092][   T73] 
[ 1540.046786][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1540.046786][   T73]      netdev_get_by_index+0x5e/0x80
[ 1540.046786][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1540.046786][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1540.046786][   T73]      ip6_route_add+0x1c/0x140
[ 1540.046786][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1540.046786][   T73]      addrconf_add_dev+0xe2/0x170
[ 1540.046786][   T73]      inet6_addr_add+0x12f/0xa40
[ 1540.046786][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1540.046786][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1540.046786][   T73]      netlink_rcv_skb+0x130/0x360
[ 1540.046786][   T73]      netlink_unicast+0x449/0x710
[ 1540.046786][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1540.046786][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1540.046786][   T73]      ___sys_sendmsg+0xee/0x170
[ 1540.046786][   T73]      __sys_sendmsg+0xcd/0x170
[ 1540.046786][   T73]      do_syscall_64+0xc6/0x1e0
[ 1540.046786][   T73] 
[ 1540.050314][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1540.050314][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1540.050314][   T73]      ipv6_find_idev+0x102/0x170
[ 1540.050314][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1540.050314][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1540.050314][   T73]      netlink_rcv_skb+0x130/0x360
[ 1540.050314][   T73]      netlink_unicast+0x449/0x710
[ 1540.050314][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1540.050314][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1540.050314][   T73]      ___sys_sendmsg+0xee/0x170
[ 1540.050314][   T73]      __sys_sendmsg+0xcd/0x170
[ 1540.050314][   T73]      do_syscall_64+0xc6/0x1e0
[ 1540.050314][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1540.050314][   T73] 
[ 1540.053132][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1540.053132][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1540.053132][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1540.053132][   T73]      ipv6_find_idev+0x102/0x170
[ 1540.053132][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1540.053132][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1540.053132][   T73]      netlink_rcv_skb+0x130/0x360
[ 1540.053132][   T73]      netlink_unicast+0x449/0x710
[ 1540.053132][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1540.053132][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1540.053132][   T73]      ___sys_sendmsg+0xee/0x170
[ 1540.053132][   T73]      __sys_sendmsg+0xcd/0x170
[ 1540.053132][   T73]      do_syscall_64+0xc6/0x1e0
[ 1540.053132][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1540.053132][   T73] 
[ 1540.056213][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1540.057539][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1540.057539][   T73]      netdev_get_by_index+0x5e/0x80
[ 1540.057539][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1540.057539][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1540.057539][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1540.057539][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1540.057539][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1540.057539][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1540.057539][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1540.057539][   T73]      addrconf_dad_begin+0x310/0x670
[ 1540.057539][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1540.057539][   T73]      process_one_work+0x84d/0x18a0
[ 1540.057539][   T73]      worker_thread+0x587/0xd30
[ 1540.057539][   T73]      kthread+0x28a/0x350
[ 1540.057539][   T73]      ret_from_fork+0x31/0x70
[ 1540.057539][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1540.057539][   T73] 
[ 1540.060636][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1540.060636][   T73]      netdev_get_by_index+0x5e/0x80
[ 1540.060636][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1540.060636][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1540.060636][   T73]      ip6_route_add+0x1c/0x140
[ 1540.060636][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1540.060636][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1540.060636][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1540.060636][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1540.060636][   T73]      netlink_rcv_skb+0x130/0x360
[ 1540.060636][   T73]      netlink_unicast+0x449/0x710
[ 1540.060636][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1540.060636][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1540.060636][   T73]      ___sys_sendmsg+0xee/0x170
[ 1540.060636][   T73]      __sys_sendmsg+0xcd/0x170
[ 1540.060636][   T73]      do_syscall_64+0xc6/0x1e0
[ 1540.060636][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1540.060636][   T73] 
[ 1540.063983][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1540.063983][   T73]      netdev_get_by_index+0x5e/0x80
[ 1540.063983][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1540.063983][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1540.063983][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1540.063983][   T73]      ipv6_add_addr+0x411/0x2000
[ 1540.063983][   T73]      inet6_addr_add+0x30e/0xa40
[ 1540.063983][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1540.063983][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1540.063983][   T73]      netlink_rcv_skb+0x130/0x360
[ 1540.063983][   T73]      netlink_unicast+0x449/0x710
[ 1540.063983][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1540.063983][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1540.063983][   T73]      ___sys_sendmsg+0xee/0x170
[ 1540.063983][   T73]      __sys_sendmsg+0xcd/0x170
[ 1540.063983][   T73]      do_syscall_64+0xc6/0x1e0
[ 1540.063983][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1540.063983][   T73] 
[ 1540.067744][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1540.067744][   T73]      netdev_get_by_index+0x5e/0x80
[ 1540.067744][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1540.067744][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1540.067744][   T73]      ip6_route_add+0x1c/0x140
[ 1540.067744][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1540.067744][   T73]      addrconf_add_dev+0xe2/0x170
[ 1540.067744][   T73]      inet6_addr_add+0x12f/0xa40
[ 1540.067744][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1540.067744][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1540.067744][   T73]      netlink_rcv_skb+0x130/0x360
[ 1540.067744][   T73]      netlink_unicast+0x449/0x710
[ 1540.067744][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1540.067744][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1540.067744][   T73]      ___sys_sendmsg+0xee/0x170
[ 1540.067744][   T73]      __sys_sendmsg+0xcd/0x170
[ 1540.067744][   T73]      do_syscall_64+0xc6/0x1e0
[ 1540.067744][   T73] 
[ 1540.071366][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1540.071366][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1540.071366][   T73]      ipv6_find_idev+0x102/0x170
[ 1540.071366][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1540.071366][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1540.071366][   T73]      netlink_rcv_skb+0x130/0x360
[ 1540.071366][   T73]      netlink_unicast+0x449/0x710
[ 1540.071366][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1540.071366][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1540.071366][   T73]      ___sys_sendmsg+0xee/0x170
[ 1540.071366][   T73]      __sys_sendmsg+0xcd/0x170
[ 1540.071366][   T73]      do_syscall_64+0xc6/0x1e0
[ 1540.071366][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1540.071366][   T73] 
[ 1540.074165][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1540.074165][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1540.074165][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1540.074165][   T73]      ipv6_find_idev+0x102/0x170
[ 1540.074165][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1540.074165][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1540.074165][   T73]      netlink_rcv_skb+0x130/0x360
[ 1540.074165][   T73]      netlink_unicast+0x449/0x710
[ 1540.074165][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1540.074165][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1540.074165][   T73]      ___sys_sendmsg+0xee/0x170
[ 1540.074165][   T73]      __sys_sendmsg+0xcd/0x170
[ 1540.074165][   T73]      do_syscall_64+0xc6/0x1e0
[ 1540.074165][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1540.074165][   T73] 
[ 1550.319716][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1550.320223][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1550.320223][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1550.320223][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1550.320223][   T73]      fib6_nh_init+0xa22/0x1580
[ 1550.320223][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1550.320223][   T73]      ip6_route_add+0x1c/0x140
[ 1550.320223][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1550.320223][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1550.320223][   T73]      netlink_rcv_skb+0x130/0x360
[ 1550.320223][   T73]      netlink_unicast+0x449/0x710
[ 1550.320223][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1550.320223][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1550.320223][   T73]      ___sys_sendmsg+0xee/0x170
[ 1550.320223][   T73]      __sys_sendmsg+0xcd/0x170
[ 1550.320223][   T73]      do_syscall_64+0xc6/0x1e0
[ 1550.320223][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1550.320223][   T73] 
[ 1550.322347][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1550.322347][   T73]      dst_init+0x84/0x4a0
[ 1550.322347][   T73]      dst_alloc+0x97/0x150
[ 1550.322347][   T73]      ip6_dst_alloc+0x23/0x90
[ 1550.322347][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1550.322347][   T73]      ip6_pol_route+0x56f/0x840
[ 1550.322347][   T73]      fib6_rule_lookup+0x456/0x630
[ 1550.322347][   T73]      ip6_route_input+0x59c/0xa50
[ 1550.322347][   T73]      ipv6_rcv+0x397/0x810
[ 1550.322347][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1550.322347][   T73]      process_backlog+0x101/0x620
[ 1550.322347][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1550.322347][   T73]      net_rx_action+0x495/0xbe0
[ 1550.322347][   T73]      __do_softirq+0x1b5/0x7f6
[ 1550.322347][   T73] 
[ 1550.324186][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1550.324186][   T73]      netdev_get_by_index+0x5e/0x80
[ 1550.324186][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1550.324186][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1550.324186][   T73]      ip6_route_add+0x1c/0x140
[ 1550.324186][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1550.324186][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1550.324186][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1550.324186][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1550.324186][   T73]      netlink_rcv_skb+0x130/0x360
[ 1550.324186][   T73]      netlink_unicast+0x449/0x710
[ 1550.324186][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1550.324186][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1550.324186][   T73]      ___sys_sendmsg+0xee/0x170
[ 1550.324186][   T73]      __sys_sendmsg+0xcd/0x170
[ 1550.324186][   T73]      do_syscall_64+0xc6/0x1e0
[ 1550.324186][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1550.324186][   T73] 
[ 1550.326422][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1550.326422][   T73]      netdev_get_by_index+0x5e/0x80
[ 1550.326422][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1550.326422][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1550.326422][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1550.326422][   T73]      ipv6_add_addr+0x411/0x2000
[ 1550.326422][   T73]      inet6_addr_add+0x30e/0xa40
[ 1550.326422][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1550.326422][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1550.326422][   T73]      netlink_rcv_skb+0x130/0x360
[ 1550.326422][   T73]      netlink_unicast+0x449/0x710
[ 1550.326422][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1550.326422][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1550.326422][   T73]      ___sys_sendmsg+0xee/0x170
[ 1550.326422][   T73]      __sys_sendmsg+0xcd/0x170
[ 1550.326422][   T73]      do_syscall_64+0xc6/0x1e0
[ 1550.326422][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1550.326422][   T73] 
[ 1550.328666][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1550.328666][   T73]      netdev_get_by_index+0x5e/0x80
[ 1550.328666][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1550.328666][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1550.328666][   T73]      ip6_route_add+0x1c/0x140
[ 1550.328666][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1550.328666][   T73]      addrconf_add_dev+0xe2/0x170
[ 1550.328666][   T73]      inet6_addr_add+0x12f/0xa40
[ 1550.328666][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1550.328666][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1550.328666][   T73]      netlink_rcv_skb+0x130/0x360
[ 1550.328666][   T73]      netlink_unicast+0x449/0x710
[ 1550.328666][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1550.328666][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1550.328666][   T73]      ___sys_sendmsg+0xee/0x170
[ 1550.328666][   T73]      __sys_sendmsg+0xcd/0x170
[ 1550.328666][   T73]      do_syscall_64+0xc6/0x1e0
[ 1550.328666][   T73] 
[ 1550.330856][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1550.330856][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1550.330856][   T73]      ipv6_find_idev+0x102/0x170
[ 1550.330856][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1550.330856][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1550.330856][   T73]      netlink_rcv_skb+0x130/0x360
[ 1550.330856][   T73]      netlink_unicast+0x449/0x710
[ 1550.330856][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1550.330856][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1550.330856][   T73]      ___sys_sendmsg+0xee/0x170
[ 1550.330856][   T73]      __sys_sendmsg+0xcd/0x170
[ 1550.330856][   T73]      do_syscall_64+0xc6/0x1e0
[ 1550.330856][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1550.330856][   T73] 
[ 1550.332585][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1550.332585][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1550.332585][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1550.332585][   T73]      ipv6_find_idev+0x102/0x170
[ 1550.332585][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1550.332585][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1550.332585][   T73]      netlink_rcv_skb+0x130/0x360
[ 1550.332585][   T73]      netlink_unicast+0x449/0x710
[ 1550.332585][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1550.332585][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1550.332585][   T73]      ___sys_sendmsg+0xee/0x170
[ 1550.332585][   T73]      __sys_sendmsg+0xcd/0x170
[ 1550.332585][   T73]      do_syscall_64+0xc6/0x1e0
[ 1550.332585][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1550.332585][   T73] 
[ 1550.334489][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1550.334816][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1550.334816][   T73]      netdev_get_by_index+0x5e/0x80
[ 1550.334816][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1550.334816][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1550.334816][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1550.334816][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1550.334816][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1550.334816][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1550.334816][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1550.334816][   T73]      addrconf_dad_begin+0x310/0x670
[ 1550.334816][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1550.334816][   T73]      process_one_work+0x84d/0x18a0
[ 1550.334816][   T73]      worker_thread+0x587/0xd30
[ 1550.334816][   T73]      kthread+0x28a/0x350
[ 1550.334816][   T73]      ret_from_fork+0x31/0x70
[ 1550.334816][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1550.334816][   T73] 
[ 1550.336971][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1550.336971][   T73]      netdev_get_by_index+0x5e/0x80
[ 1550.336971][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1550.336971][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1550.336971][   T73]      ip6_route_add+0x1c/0x140
[ 1550.336971][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1550.336971][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1550.336971][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1550.336971][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1550.336971][   T73]      netlink_rcv_skb+0x130/0x360
[ 1550.336971][   T73]      netlink_unicast+0x449/0x710
[ 1550.336971][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1550.336971][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1550.336971][   T73]      ___sys_sendmsg+0xee/0x170
[ 1550.336971][   T73]      __sys_sendmsg+0xcd/0x170
[ 1550.336971][   T73]      do_syscall_64+0xc6/0x1e0
[ 1550.336971][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1550.336971][   T73] 
[ 1550.339229][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1550.339229][   T73]      netdev_get_by_index+0x5e/0x80
[ 1550.339229][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1550.339229][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1550.339229][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1550.339229][   T73]      ipv6_add_addr+0x411/0x2000
[ 1550.339229][   T73]      inet6_addr_add+0x30e/0xa40
[ 1550.339229][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1550.339229][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1550.339229][   T73]      netlink_rcv_skb+0x130/0x360
[ 1550.339229][   T73]      netlink_unicast+0x449/0x710
[ 1550.339229][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1550.339229][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1550.339229][   T73]      ___sys_sendmsg+0xee/0x170
[ 1550.339229][   T73]      __sys_sendmsg+0xcd/0x170
[ 1550.339229][   T73]      do_syscall_64+0xc6/0x1e0
[ 1550.339229][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1550.339229][   T73] 
[ 1550.341464][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1550.341464][   T73]      netdev_get_by_index+0x5e/0x80
[ 1550.341464][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1550.341464][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1550.341464][   T73]      ip6_route_add+0x1c/0x140
[ 1550.341464][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1550.341464][   T73]      addrconf_add_dev+0xe2/0x170
[ 1550.341464][   T73]      inet6_addr_add+0x12f/0xa40
[ 1550.341464][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1550.341464][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1550.341464][   T73]      netlink_rcv_skb+0x130/0x360
[ 1550.341464][   T73]      netlink_unicast+0x449/0x710
[ 1550.341464][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1550.341464][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1550.341464][   T73]      ___sys_sendmsg+0xee/0x170
[ 1550.341464][   T73]      __sys_sendmsg+0xcd/0x170
[ 1550.341464][   T73]      do_syscall_64+0xc6/0x1e0
[ 1550.341464][   T73] 
[ 1550.343672][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1550.343672][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1550.343672][   T73]      ipv6_find_idev+0x102/0x170
[ 1550.343672][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1550.343672][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1550.343672][   T73]      netlink_rcv_skb+0x130/0x360
[ 1550.343672][   T73]      netlink_unicast+0x449/0x710
[ 1550.343672][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1550.343672][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1550.343672][   T73]      ___sys_sendmsg+0xee/0x170
[ 1550.343672][   T73]      __sys_sendmsg+0xcd/0x170
[ 1550.343672][   T73]      do_syscall_64+0xc6/0x1e0
[ 1550.343672][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1550.343672][   T73] 
[ 1550.345384][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1550.345384][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1550.345384][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1550.345384][   T73]      ipv6_find_idev+0x102/0x170
[ 1550.345384][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1550.345384][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1550.345384][   T73]      netlink_rcv_skb+0x130/0x360
[ 1550.345384][   T73]      netlink_unicast+0x449/0x710
[ 1550.345384][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1550.345384][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1550.345384][   T73]      ___sys_sendmsg+0xee/0x170
[ 1550.345384][   T73]      __sys_sendmsg+0xcd/0x170
[ 1550.345384][   T73]      do_syscall_64+0xc6/0x1e0
[ 1550.345384][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1550.345384][   T73] 
[ 1550.347271][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1550.347575][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1550.347575][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1550.347575][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1550.347575][   T73]      fib6_nh_init+0xa22/0x1580
[ 1550.347575][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1550.347575][   T73]      ip6_route_add+0x1c/0x140
[ 1550.347575][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1550.347575][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1550.347575][   T73]      netlink_rcv_skb+0x130/0x360
[ 1550.347575][   T73]      netlink_unicast+0x449/0x710
[ 1550.347575][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1550.347575][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1550.347575][   T73]      ___sys_sendmsg+0xee/0x170
[ 1550.347575][   T73]      __sys_sendmsg+0xcd/0x170
[ 1550.347575][   T73]      do_syscall_64+0xc6/0x1e0
[ 1550.347575][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1550.347575][   T73] 
[ 1550.349810][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1550.349810][   T73]      dst_init+0x84/0x4a0
[ 1550.349810][   T73]      dst_alloc+0x97/0x150
[ 1550.349810][   T73]      ip6_dst_alloc+0x23/0x90
[ 1550.349810][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1550.349810][   T73]      ip6_pol_route+0x56f/0x840
[ 1550.349810][   T73]      fib6_rule_lookup+0x456/0x630
[ 1550.349810][   T73]      ip6_route_input+0x59c/0xa50
[ 1550.349810][   T73]      ipv6_rcv+0x397/0x810
[ 1550.349810][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1550.349810][   T73]      process_backlog+0x101/0x620
[ 1550.349810][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1550.349810][   T73]      net_rx_action+0x495/0xbe0
[ 1550.349810][   T73]      __do_softirq+0x1b5/0x7f6
[ 1550.349810][   T73] 
[ 1550.351827][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1550.351827][   T73]      netdev_get_by_index+0x5e/0x80
[ 1550.351827][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1550.351827][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1550.351827][   T73]      ip6_route_add+0x1c/0x140
[ 1550.351827][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1550.351827][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1550.351827][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1550.351827][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1550.351827][   T73]      netlink_rcv_skb+0x130/0x360
[ 1550.351827][   T73]      netlink_unicast+0x449/0x710
[ 1550.351827][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1550.351827][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1550.351827][   T73]      ___sys_sendmsg+0xee/0x170
[ 1550.351827][   T73]      __sys_sendmsg+0xcd/0x170
[ 1550.351827][   T73]      do_syscall_64+0xc6/0x1e0
[ 1550.351827][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1550.351827][   T73] 
[ 1550.354376][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1550.354376][   T73]      netdev_get_by_index+0x5e/0x80
[ 1550.354376][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1550.354376][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1550.354376][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1550.354376][   T73]      ipv6_add_addr+0x411/0x2000
[ 1550.354376][   T73]      inet6_addr_add+0x30e/0xa40
[ 1550.354376][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1550.354376][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1550.354376][   T73]      netlink_rcv_skb+0x130/0x360
[ 1550.354376][   T73]      netlink_unicast+0x449/0x710
[ 1550.354376][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1550.354376][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1550.354376][   T73]      ___sys_sendmsg+0xee/0x170
[ 1550.354376][   T73]      __sys_sendmsg+0xcd/0x170
[ 1550.354376][   T73]      do_syscall_64+0xc6/0x1e0
[ 1550.354376][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1550.354376][   T73] 
[ 1550.356857][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1550.356857][   T73]      netdev_get_by_index+0x5e/0x80
[ 1550.356857][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1550.356857][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1550.356857][   T73]      ip6_route_add+0x1c/0x140
[ 1550.356857][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1550.356857][   T73]      addrconf_add_dev+0xe2/0x170
[ 1550.356857][   T73]      inet6_addr_add+0x12f/0xa40
[ 1550.356857][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1550.356857][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1550.356857][   T73]      netlink_rcv_skb+0x130/0x360
[ 1550.356857][   T73]      netlink_unicast+0x449/0x710
[ 1550.356857][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1550.356857][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1550.356857][   T73]      ___sys_sendmsg+0xee/0x170
[ 1550.356857][   T73]      __sys_sendmsg+0xcd/0x170
[ 1550.356857][   T73]      do_syscall_64+0xc6/0x1e0
[ 1550.356857][   T73] 
[ 1550.359307][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1550.359307][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1550.359307][   T73]      ipv6_find_idev+0x102/0x170
[ 1550.359307][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1550.359307][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1550.359307][   T73]      netlink_rcv_skb+0x130/0x360
[ 1550.359307][   T73]      netlink_unicast+0x449/0x710
[ 1550.359307][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1550.359307][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1550.359307][   T73]      ___sys_sendmsg+0xee/0x170
[ 1550.359307][   T73]      __sys_sendmsg+0xcd/0x170
[ 1550.359307][   T73]      do_syscall_64+0xc6/0x1e0
[ 1550.359307][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1550.359307][   T73] 
[ 1550.361228][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1550.361228][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1550.361228][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1550.361228][   T73]      ipv6_find_idev+0x102/0x170
[ 1550.361228][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1550.361228][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1550.361228][   T73]      netlink_rcv_skb+0x130/0x360
[ 1550.361228][   T73]      netlink_unicast+0x449/0x710
[ 1550.361228][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1550.361228][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1550.361228][   T73]      ___sys_sendmsg+0xee/0x170
[ 1550.361228][   T73]      __sys_sendmsg+0xcd/0x170
[ 1550.361228][   T73]      do_syscall_64+0xc6/0x1e0
[ 1550.361228][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1550.361228][   T73] 
[ 1550.363295][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1550.363596][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1550.363596][   T73]      netdev_get_by_index+0x5e/0x80
[ 1550.363596][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1550.363596][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1550.363596][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1550.363596][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1550.363596][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1550.363596][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1550.363596][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1550.363596][   T73]      addrconf_dad_begin+0x310/0x670
[ 1550.363596][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1550.363596][   T73]      process_one_work+0x84d/0x18a0
[ 1550.363596][   T73]      worker_thread+0x587/0xd30
[ 1550.363596][   T73]      kthread+0x28a/0x350
[ 1550.363596][   T73]      ret_from_fork+0x31/0x70
[ 1550.363596][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1550.363596][   T73] 
[ 1550.366053][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1550.366053][   T73]      netdev_get_by_index+0x5e/0x80
[ 1550.366053][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1550.366053][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1550.366053][   T73]      ip6_route_add+0x1c/0x140
[ 1550.366053][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1550.366053][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1550.366053][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1550.366053][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1550.366053][   T73]      netlink_rcv_skb+0x130/0x360
[ 1550.366053][   T73]      netlink_unicast+0x449/0x710
[ 1550.366053][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1550.366053][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1550.366053][   T73]      ___sys_sendmsg+0xee/0x170
[ 1550.366053][   T73]      __sys_sendmsg+0xcd/0x170
[ 1550.366053][   T73]      do_syscall_64+0xc6/0x1e0
[ 1550.366053][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1550.366053][   T73] 
[ 1550.368550][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1550.368550][   T73]      netdev_get_by_index+0x5e/0x80
[ 1550.368550][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1550.368550][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1550.368550][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1550.368550][   T73]      ipv6_add_addr+0x411/0x2000
[ 1550.368550][   T73]      inet6_addr_add+0x30e/0xa40
[ 1550.368550][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1550.368550][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1550.368550][   T73]      netlink_rcv_skb+0x130/0x360
[ 1550.368550][   T73]      netlink_unicast+0x449/0x710
[ 1550.368550][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1550.368550][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1550.368550][   T73]      ___sys_sendmsg+0xee/0x170
[ 1550.368550][   T73]      __sys_sendmsg+0xcd/0x170
[ 1550.368550][   T73]      do_syscall_64+0xc6/0x1e0
[ 1550.368550][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1550.368550][   T73] 
[ 1550.371049][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1550.371049][   T73]      netdev_get_by_index+0x5e/0x80
[ 1550.371049][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1550.371049][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1550.371049][   T73]      ip6_route_add+0x1c/0x140
[ 1550.371049][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1550.371049][   T73]      addrconf_add_dev+0xe2/0x170
[ 1550.371049][   T73]      inet6_addr_add+0x12f/0xa40
[ 1550.371049][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1550.371049][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1550.371049][   T73]      netlink_rcv_skb+0x130/0x360
[ 1550.371049][   T73]      netlink_unicast+0x449/0x710
[ 1550.371049][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1550.371049][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1550.371049][   T73]      ___sys_sendmsg+0xee/0x170
[ 1550.371049][   T73]      __sys_sendmsg+0xcd/0x170
[ 1550.371049][   T73]      do_syscall_64+0xc6/0x1e0
[ 1550.371049][   T73] 
[ 1550.373504][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1550.373504][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1550.373504][   T73]      ipv6_find_idev+0x102/0x170
[ 1550.373504][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1550.373504][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1550.373504][   T73]      netlink_rcv_skb+0x130/0x360
[ 1550.373504][   T73]      netlink_unicast+0x449/0x710
[ 1550.373504][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1550.373504][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1550.373504][   T73]      ___sys_sendmsg+0xee/0x170
[ 1550.373504][   T73]      __sys_sendmsg+0xcd/0x170
[ 1550.373504][   T73]      do_syscall_64+0xc6/0x1e0
[ 1550.373504][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1550.373504][   T73] 
[ 1550.375416][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1550.375416][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1550.375416][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1550.375416][   T73]      ipv6_find_idev+0x102/0x170
[ 1550.375416][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1550.375416][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1550.375416][   T73]      netlink_rcv_skb+0x130/0x360
[ 1550.375416][   T73]      netlink_unicast+0x449/0x710
[ 1550.375416][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1550.375416][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1550.375416][   T73]      ___sys_sendmsg+0xee/0x170
[ 1550.375416][   T73]      __sys_sendmsg+0xcd/0x170
[ 1550.375416][   T73]      do_syscall_64+0xc6/0x1e0
[ 1550.375416][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1550.375416][   T73] 
[ 1560.415807][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1560.416410][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1560.416410][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1560.416410][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1560.416410][   T73]      fib6_nh_init+0xa22/0x1580
[ 1560.416410][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1560.416410][   T73]      ip6_route_add+0x1c/0x140
[ 1560.416410][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1560.416410][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1560.416410][   T73]      netlink_rcv_skb+0x130/0x360
[ 1560.416410][   T73]      netlink_unicast+0x449/0x710
[ 1560.416410][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1560.416410][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1560.416410][   T73]      ___sys_sendmsg+0xee/0x170
[ 1560.416410][   T73]      __sys_sendmsg+0xcd/0x170
[ 1560.416410][   T73]      do_syscall_64+0xc6/0x1e0
[ 1560.416410][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1560.416410][   T73] 
[ 1560.418528][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1560.418528][   T73]      dst_init+0x84/0x4a0
[ 1560.418528][   T73]      dst_alloc+0x97/0x150
[ 1560.418528][   T73]      ip6_dst_alloc+0x23/0x90
[ 1560.418528][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1560.418528][   T73]      ip6_pol_route+0x56f/0x840
[ 1560.418528][   T73]      fib6_rule_lookup+0x456/0x630
[ 1560.418528][   T73]      ip6_route_input+0x59c/0xa50
[ 1560.418528][   T73]      ipv6_rcv+0x397/0x810
[ 1560.418528][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1560.418528][   T73]      process_backlog+0x101/0x620
[ 1560.418528][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1560.418528][   T73]      net_rx_action+0x495/0xbe0
[ 1560.418528][   T73]      __do_softirq+0x1b5/0x7f6
[ 1560.418528][   T73] 
[ 1560.420364][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1560.420364][   T73]      netdev_get_by_index+0x5e/0x80
[ 1560.420364][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1560.420364][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1560.420364][   T73]      ip6_route_add+0x1c/0x140
[ 1560.420364][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1560.420364][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1560.420364][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1560.420364][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1560.420364][   T73]      netlink_rcv_skb+0x130/0x360
[ 1560.420364][   T73]      netlink_unicast+0x449/0x710
[ 1560.420364][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1560.420364][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1560.420364][   T73]      ___sys_sendmsg+0xee/0x170
[ 1560.420364][   T73]      __sys_sendmsg+0xcd/0x170
[ 1560.420364][   T73]      do_syscall_64+0xc6/0x1e0
[ 1560.420364][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1560.420364][   T73] 
[ 1560.422573][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1560.422573][   T73]      netdev_get_by_index+0x5e/0x80
[ 1560.422573][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1560.422573][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1560.422573][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1560.422573][   T73]      ipv6_add_addr+0x411/0x2000
[ 1560.422573][   T73]      inet6_addr_add+0x30e/0xa40
[ 1560.422573][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1560.422573][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1560.422573][   T73]      netlink_rcv_skb+0x130/0x360
[ 1560.422573][   T73]      netlink_unicast+0x449/0x710
[ 1560.422573][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1560.422573][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1560.422573][   T73]      ___sys_sendmsg+0xee/0x170
[ 1560.422573][   T73]      __sys_sendmsg+0xcd/0x170
[ 1560.422573][   T73]      do_syscall_64+0xc6/0x1e0
[ 1560.422573][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1560.422573][   T73] 
[ 1560.424798][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1560.424798][   T73]      netdev_get_by_index+0x5e/0x80
[ 1560.424798][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1560.424798][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1560.424798][   T73]      ip6_route_add+0x1c/0x140
[ 1560.424798][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1560.424798][   T73]      addrconf_add_dev+0xe2/0x170
[ 1560.424798][   T73]      inet6_addr_add+0x12f/0xa40
[ 1560.424798][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1560.424798][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1560.424798][   T73]      netlink_rcv_skb+0x130/0x360
[ 1560.424798][   T73]      netlink_unicast+0x449/0x710
[ 1560.424798][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1560.424798][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1560.424798][   T73]      ___sys_sendmsg+0xee/0x170
[ 1560.424798][   T73]      __sys_sendmsg+0xcd/0x170
[ 1560.424798][   T73]      do_syscall_64+0xc6/0x1e0
[ 1560.424798][   T73] 
[ 1560.427528][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1560.427528][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1560.427528][   T73]      ipv6_find_idev+0x102/0x170
[ 1560.427528][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1560.427528][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1560.427528][   T73]      netlink_rcv_skb+0x130/0x360
[ 1560.427528][   T73]      netlink_unicast+0x449/0x710
[ 1560.427528][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1560.427528][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1560.427528][   T73]      ___sys_sendmsg+0xee/0x170
[ 1560.427528][   T73]      __sys_sendmsg+0xcd/0x170
[ 1560.427528][   T73]      do_syscall_64+0xc6/0x1e0
[ 1560.427528][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1560.427528][   T73] 
[ 1560.429244][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1560.429244][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1560.429244][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1560.429244][   T73]      ipv6_find_idev+0x102/0x170
[ 1560.429244][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1560.429244][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1560.429244][   T73]      netlink_rcv_skb+0x130/0x360
[ 1560.429244][   T73]      netlink_unicast+0x449/0x710
[ 1560.429244][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1560.429244][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1560.429244][   T73]      ___sys_sendmsg+0xee/0x170
[ 1560.429244][   T73]      __sys_sendmsg+0xcd/0x170
[ 1560.429244][   T73]      do_syscall_64+0xc6/0x1e0
[ 1560.429244][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1560.429244][   T73] 
[ 1560.431122][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1560.431421][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1560.431421][   T73]      netdev_get_by_index+0x5e/0x80
[ 1560.431421][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1560.431421][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1560.431421][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1560.431421][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1560.431421][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1560.431421][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1560.431421][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1560.431421][   T73]      addrconf_dad_begin+0x310/0x670
[ 1560.431421][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1560.431421][   T73]      process_one_work+0x84d/0x18a0
[ 1560.431421][   T73]      worker_thread+0x587/0xd30
[ 1560.431421][   T73]      kthread+0x28a/0x350
[ 1560.431421][   T73]      ret_from_fork+0x31/0x70
[ 1560.431421][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1560.431421][   T73] 
[ 1560.433560][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1560.433560][   T73]      netdev_get_by_index+0x5e/0x80
[ 1560.433560][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1560.433560][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1560.433560][   T73]      ip6_route_add+0x1c/0x140
[ 1560.433560][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1560.433560][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1560.433560][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1560.433560][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1560.433560][   T73]      netlink_rcv_skb+0x130/0x360
[ 1560.433560][   T73]      netlink_unicast+0x449/0x710
[ 1560.433560][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1560.433560][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1560.433560][   T73]      ___sys_sendmsg+0xee/0x170
[ 1560.433560][   T73]      __sys_sendmsg+0xcd/0x170
[ 1560.433560][   T73]      do_syscall_64+0xc6/0x1e0
[ 1560.433560][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1560.433560][   T73] 
[ 1560.435793][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1560.435793][   T73]      netdev_get_by_index+0x5e/0x80
[ 1560.435793][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1560.435793][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1560.435793][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1560.435793][   T73]      ipv6_add_addr+0x411/0x2000
[ 1560.435793][   T73]      inet6_addr_add+0x30e/0xa40
[ 1560.435793][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1560.435793][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1560.435793][   T73]      netlink_rcv_skb+0x130/0x360
[ 1560.435793][   T73]      netlink_unicast+0x449/0x710
[ 1560.435793][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1560.435793][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1560.435793][   T73]      ___sys_sendmsg+0xee/0x170
[ 1560.435793][   T73]      __sys_sendmsg+0xcd/0x170
[ 1560.435793][   T73]      do_syscall_64+0xc6/0x1e0
[ 1560.435793][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1560.435793][   T73] 
[ 1560.438067][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1560.438067][   T73]      netdev_get_by_index+0x5e/0x80
[ 1560.438067][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1560.438067][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1560.438067][   T73]      ip6_route_add+0x1c/0x140
[ 1560.438067][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1560.438067][   T73]      addrconf_add_dev+0xe2/0x170
[ 1560.438067][   T73]      inet6_addr_add+0x12f/0xa40
[ 1560.438067][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1560.438067][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1560.438067][   T73]      netlink_rcv_skb+0x130/0x360
[ 1560.438067][   T73]      netlink_unicast+0x449/0x710
[ 1560.438067][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1560.438067][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1560.438067][   T73]      ___sys_sendmsg+0xee/0x170
[ 1560.438067][   T73]      __sys_sendmsg+0xcd/0x170
[ 1560.438067][   T73]      do_syscall_64+0xc6/0x1e0
[ 1560.438067][   T73] 
[ 1560.440260][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1560.440260][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1560.440260][   T73]      ipv6_find_idev+0x102/0x170
[ 1560.440260][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1560.440260][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1560.440260][   T73]      netlink_rcv_skb+0x130/0x360
[ 1560.440260][   T73]      netlink_unicast+0x449/0x710
[ 1560.440260][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1560.440260][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1560.440260][   T73]      ___sys_sendmsg+0xee/0x170
[ 1560.440260][   T73]      __sys_sendmsg+0xcd/0x170
[ 1560.440260][   T73]      do_syscall_64+0xc6/0x1e0
[ 1560.440260][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1560.440260][   T73] 
[ 1560.441959][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1560.441959][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1560.441959][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1560.441959][   T73]      ipv6_find_idev+0x102/0x170
[ 1560.441959][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1560.441959][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1560.441959][   T73]      netlink_rcv_skb+0x130/0x360
[ 1560.441959][   T73]      netlink_unicast+0x449/0x710
[ 1560.441959][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1560.441959][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1560.441959][   T73]      ___sys_sendmsg+0xee/0x170
[ 1560.441959][   T73]      __sys_sendmsg+0xcd/0x170
[ 1560.441959][   T73]      do_syscall_64+0xc6/0x1e0
[ 1560.441959][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1560.441959][   T73] 
[ 1560.443833][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1560.444126][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1560.444126][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1560.444126][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1560.444126][   T73]      fib6_nh_init+0xa22/0x1580
[ 1560.444126][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1560.444126][   T73]      ip6_route_add+0x1c/0x140
[ 1560.444126][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1560.444126][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1560.444126][   T73]      netlink_rcv_skb+0x130/0x360
[ 1560.444126][   T73]      netlink_unicast+0x449/0x710
[ 1560.444126][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1560.444126][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1560.444126][   T73]      ___sys_sendmsg+0xee/0x170
[ 1560.444126][   T73]      __sys_sendmsg+0xcd/0x170
[ 1560.444126][   T73]      do_syscall_64+0xc6/0x1e0
[ 1560.444126][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1560.444126][   T73] 
[ 1560.446353][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1560.446353][   T73]      dst_init+0x84/0x4a0
[ 1560.446353][   T73]      dst_alloc+0x97/0x150
[ 1560.446353][   T73]      ip6_dst_alloc+0x23/0x90
[ 1560.446353][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1560.446353][   T73]      ip6_pol_route+0x56f/0x840
[ 1560.446353][   T73]      fib6_rule_lookup+0x456/0x630
[ 1560.446353][   T73]      ip6_route_input+0x59c/0xa50
[ 1560.446353][   T73]      ipv6_rcv+0x397/0x810
[ 1560.446353][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1560.446353][   T73]      process_backlog+0x101/0x620
[ 1560.446353][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1560.446353][   T73]      net_rx_action+0x495/0xbe0
[ 1560.446353][   T73]      __do_softirq+0x1b5/0x7f6
[ 1560.446353][   T73] 
[ 1560.448751][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1560.448751][   T73]      netdev_get_by_index+0x5e/0x80
[ 1560.448751][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1560.448751][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1560.448751][   T73]      ip6_route_add+0x1c/0x140
[ 1560.448751][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1560.448751][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1560.448751][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1560.448751][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1560.448751][   T73]      netlink_rcv_skb+0x130/0x360
[ 1560.448751][   T73]      netlink_unicast+0x449/0x710
[ 1560.448751][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1560.448751][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1560.448751][   T73]      ___sys_sendmsg+0xee/0x170
[ 1560.448751][   T73]      __sys_sendmsg+0xcd/0x170
[ 1560.448751][   T73]      do_syscall_64+0xc6/0x1e0
[ 1560.448751][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1560.448751][   T73] 
[ 1560.451217][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1560.451217][   T73]      netdev_get_by_index+0x5e/0x80
[ 1560.451217][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1560.451217][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1560.451217][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1560.451217][   T73]      ipv6_add_addr+0x411/0x2000
[ 1560.451217][   T73]      inet6_addr_add+0x30e/0xa40
[ 1560.451217][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1560.451217][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1560.451217][   T73]      netlink_rcv_skb+0x130/0x360
[ 1560.451217][   T73]      netlink_unicast+0x449/0x710
[ 1560.451217][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1560.451217][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1560.451217][   T73]      ___sys_sendmsg+0xee/0x170
[ 1560.451217][   T73]      __sys_sendmsg+0xcd/0x170
[ 1560.451217][   T73]      do_syscall_64+0xc6/0x1e0
[ 1560.451217][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1560.451217][   T73] 
[ 1560.453673][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1560.453673][   T73]      netdev_get_by_index+0x5e/0x80
[ 1560.453673][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1560.453673][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1560.453673][   T73]      ip6_route_add+0x1c/0x140
[ 1560.453673][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1560.453673][   T73]      addrconf_add_dev+0xe2/0x170
[ 1560.453673][   T73]      inet6_addr_add+0x12f/0xa40
[ 1560.453673][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1560.453673][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1560.453673][   T73]      netlink_rcv_skb+0x130/0x360
[ 1560.453673][   T73]      netlink_unicast+0x449/0x710
[ 1560.453673][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1560.453673][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1560.453673][   T73]      ___sys_sendmsg+0xee/0x170
[ 1560.453673][   T73]      __sys_sendmsg+0xcd/0x170
[ 1560.453673][   T73]      do_syscall_64+0xc6/0x1e0
[ 1560.453673][   T73] 
[ 1560.456110][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1560.456110][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1560.456110][   T73]      ipv6_find_idev+0x102/0x170
[ 1560.456110][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1560.456110][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1560.456110][   T73]      netlink_rcv_skb+0x130/0x360
[ 1560.456110][   T73]      netlink_unicast+0x449/0x710
[ 1560.456110][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1560.456110][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1560.456110][   T73]      ___sys_sendmsg+0xee/0x170
[ 1560.456110][   T73]      __sys_sendmsg+0xcd/0x170
[ 1560.456110][   T73]      do_syscall_64+0xc6/0x1e0
[ 1560.456110][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1560.456110][   T73] 
[ 1560.458072][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1560.458072][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1560.458072][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1560.458072][   T73]      ipv6_find_idev+0x102/0x170
[ 1560.458072][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1560.458072][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1560.458072][   T73]      netlink_rcv_skb+0x130/0x360
[ 1560.458072][   T73]      netlink_unicast+0x449/0x710
[ 1560.458072][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1560.458072][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1560.458072][   T73]      ___sys_sendmsg+0xee/0x170
[ 1560.458072][   T73]      __sys_sendmsg+0xcd/0x170
[ 1560.458072][   T73]      do_syscall_64+0xc6/0x1e0
[ 1560.458072][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1560.458072][   T73] 
[ 1560.460149][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1560.460450][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1560.460450][   T73]      netdev_get_by_index+0x5e/0x80
[ 1560.460450][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1560.460450][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1560.460450][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1560.460450][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1560.460450][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1560.460450][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1560.460450][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1560.460450][   T73]      addrconf_dad_begin+0x310/0x670
[ 1560.460450][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1560.460450][   T73]      process_one_work+0x84d/0x18a0
[ 1560.460450][   T73]      worker_thread+0x587/0xd30
[ 1560.460450][   T73]      kthread+0x28a/0x350
[ 1560.460450][   T73]      ret_from_fork+0x31/0x70
[ 1560.460450][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1560.460450][   T73] 
[ 1560.462834][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1560.462834][   T73]      netdev_get_by_index+0x5e/0x80
[ 1560.462834][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1560.462834][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1560.462834][   T73]      ip6_route_add+0x1c/0x140
[ 1560.462834][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1560.462834][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1560.462834][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1560.462834][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1560.462834][   T73]      netlink_rcv_skb+0x130/0x360
[ 1560.462834][   T73]      netlink_unicast+0x449/0x710
[ 1560.462834][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1560.462834][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1560.462834][   T73]      ___sys_sendmsg+0xee/0x170
[ 1560.462834][   T73]      __sys_sendmsg+0xcd/0x170
[ 1560.462834][   T73]      do_syscall_64+0xc6/0x1e0
[ 1560.462834][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1560.462834][   T73] 
[ 1560.465323][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1560.465323][   T73]      netdev_get_by_index+0x5e/0x80
[ 1560.465323][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1560.465323][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1560.465323][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1560.465323][   T73]      ipv6_add_addr+0x411/0x2000
[ 1560.465323][   T73]      inet6_addr_add+0x30e/0xa40
[ 1560.465323][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1560.465323][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1560.465323][   T73]      netlink_rcv_skb+0x130/0x360
[ 1560.465323][   T73]      netlink_unicast+0x449/0x710
[ 1560.465323][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1560.465323][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1560.465323][   T73]      ___sys_sendmsg+0xee/0x170
[ 1560.465323][   T73]      __sys_sendmsg+0xcd/0x170
[ 1560.465323][   T73]      do_syscall_64+0xc6/0x1e0
[ 1560.465323][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1560.465323][   T73] 
[ 1560.467881][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1560.467881][   T73]      netdev_get_by_index+0x5e/0x80
[ 1560.467881][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1560.467881][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1560.467881][   T73]      ip6_route_add+0x1c/0x140
[ 1560.467881][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1560.467881][   T73]      addrconf_add_dev+0xe2/0x170
[ 1560.467881][   T73]      inet6_addr_add+0x12f/0xa40
[ 1560.467881][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1560.467881][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1560.467881][   T73]      netlink_rcv_skb+0x130/0x360
[ 1560.467881][   T73]      netlink_unicast+0x449/0x710
[ 1560.467881][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1560.467881][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1560.467881][   T73]      ___sys_sendmsg+0xee/0x170
[ 1560.467881][   T73]      __sys_sendmsg+0xcd/0x170
[ 1560.467881][   T73]      do_syscall_64+0xc6/0x1e0
[ 1560.467881][   T73] 
[ 1560.470303][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1560.470303][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1560.470303][   T73]      ipv6_find_idev+0x102/0x170
[ 1560.470303][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1560.470303][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1560.470303][   T73]      netlink_rcv_skb+0x130/0x360
[ 1560.470303][   T73]      netlink_unicast+0x449/0x710
[ 1560.470303][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1560.470303][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1560.470303][   T73]      ___sys_sendmsg+0xee/0x170
[ 1560.470303][   T73]      __sys_sendmsg+0xcd/0x170
[ 1560.470303][   T73]      do_syscall_64+0xc6/0x1e0
[ 1560.470303][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1560.470303][   T73] 
[ 1560.472157][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1560.472157][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1560.472157][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1560.472157][   T73]      ipv6_find_idev+0x102/0x170
[ 1560.472157][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1560.472157][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1560.472157][   T73]      netlink_rcv_skb+0x130/0x360
[ 1560.472157][   T73]      netlink_unicast+0x449/0x710
[ 1560.472157][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1560.472157][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1560.472157][   T73]      ___sys_sendmsg+0xee/0x170
[ 1560.472157][   T73]      __sys_sendmsg+0xcd/0x170
[ 1560.472157][   T73]      do_syscall_64+0xc6/0x1e0
[ 1560.472157][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1560.472157][   T73] 
[ 1570.695738][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1570.696281][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1570.696281][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1570.696281][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1570.696281][   T73]      fib6_nh_init+0xa22/0x1580
[ 1570.696281][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1570.696281][   T73]      ip6_route_add+0x1c/0x140
[ 1570.696281][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1570.696281][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1570.696281][   T73]      netlink_rcv_skb+0x130/0x360
[ 1570.696281][   T73]      netlink_unicast+0x449/0x710
[ 1570.696281][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1570.696281][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1570.696281][   T73]      ___sys_sendmsg+0xee/0x170
[ 1570.696281][   T73]      __sys_sendmsg+0xcd/0x170
[ 1570.696281][   T73]      do_syscall_64+0xc6/0x1e0
[ 1570.696281][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1570.696281][   T73] 
[ 1570.698411][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1570.698411][   T73]      dst_init+0x84/0x4a0
[ 1570.698411][   T73]      dst_alloc+0x97/0x150
[ 1570.698411][   T73]      ip6_dst_alloc+0x23/0x90
[ 1570.698411][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1570.698411][   T73]      ip6_pol_route+0x56f/0x840
[ 1570.698411][   T73]      fib6_rule_lookup+0x456/0x630
[ 1570.698411][   T73]      ip6_route_input+0x59c/0xa50
[ 1570.698411][   T73]      ipv6_rcv+0x397/0x810
[ 1570.698411][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1570.698411][   T73]      process_backlog+0x101/0x620
[ 1570.698411][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1570.698411][   T73]      net_rx_action+0x495/0xbe0
[ 1570.698411][   T73]      __do_softirq+0x1b5/0x7f6
[ 1570.698411][   T73] 
[ 1570.700251][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1570.700251][   T73]      netdev_get_by_index+0x5e/0x80
[ 1570.700251][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1570.700251][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1570.700251][   T73]      ip6_route_add+0x1c/0x140
[ 1570.700251][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1570.700251][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1570.700251][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1570.700251][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1570.700251][   T73]      netlink_rcv_skb+0x130/0x360
[ 1570.700251][   T73]      netlink_unicast+0x449/0x710
[ 1570.700251][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1570.700251][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1570.700251][   T73]      ___sys_sendmsg+0xee/0x170
[ 1570.700251][   T73]      __sys_sendmsg+0xcd/0x170
[ 1570.700251][   T73]      do_syscall_64+0xc6/0x1e0
[ 1570.700251][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1570.700251][   T73] 
[ 1570.702495][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1570.702495][   T73]      netdev_get_by_index+0x5e/0x80
[ 1570.702495][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1570.702495][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1570.702495][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1570.702495][   T73]      ipv6_add_addr+0x411/0x2000
[ 1570.702495][   T73]      inet6_addr_add+0x30e/0xa40
[ 1570.702495][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1570.702495][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1570.702495][   T73]      netlink_rcv_skb+0x130/0x360
[ 1570.702495][   T73]      netlink_unicast+0x449/0x710
[ 1570.702495][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1570.702495][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1570.702495][   T73]      ___sys_sendmsg+0xee/0x170
[ 1570.702495][   T73]      __sys_sendmsg+0xcd/0x170
[ 1570.702495][   T73]      do_syscall_64+0xc6/0x1e0
[ 1570.702495][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1570.702495][   T73] 
[ 1570.704728][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1570.704728][   T73]      netdev_get_by_index+0x5e/0x80
[ 1570.704728][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1570.704728][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1570.704728][   T73]      ip6_route_add+0x1c/0x140
[ 1570.704728][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1570.704728][   T73]      addrconf_add_dev+0xe2/0x170
[ 1570.704728][   T73]      inet6_addr_add+0x12f/0xa40
[ 1570.704728][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1570.704728][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1570.704728][   T73]      netlink_rcv_skb+0x130/0x360
[ 1570.704728][   T73]      netlink_unicast+0x449/0x710
[ 1570.704728][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1570.704728][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1570.704728][   T73]      ___sys_sendmsg+0xee/0x170
[ 1570.704728][   T73]      __sys_sendmsg+0xcd/0x170
[ 1570.704728][   T73]      do_syscall_64+0xc6/0x1e0
[ 1570.704728][   T73] 
[ 1570.706933][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1570.706933][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1570.706933][   T73]      ipv6_find_idev+0x102/0x170
[ 1570.706933][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1570.706933][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1570.706933][   T73]      netlink_rcv_skb+0x130/0x360
[ 1570.706933][   T73]      netlink_unicast+0x449/0x710
[ 1570.706933][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1570.706933][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1570.706933][   T73]      ___sys_sendmsg+0xee/0x170
[ 1570.706933][   T73]      __sys_sendmsg+0xcd/0x170
[ 1570.706933][   T73]      do_syscall_64+0xc6/0x1e0
[ 1570.706933][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1570.706933][   T73] 
[ 1570.708663][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1570.708663][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1570.708663][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1570.708663][   T73]      ipv6_find_idev+0x102/0x170
[ 1570.708663][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1570.708663][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1570.708663][   T73]      netlink_rcv_skb+0x130/0x360
[ 1570.708663][   T73]      netlink_unicast+0x449/0x710
[ 1570.708663][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1570.708663][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1570.708663][   T73]      ___sys_sendmsg+0xee/0x170
[ 1570.708663][   T73]      __sys_sendmsg+0xcd/0x170
[ 1570.708663][   T73]      do_syscall_64+0xc6/0x1e0
[ 1570.708663][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1570.708663][   T73] 
[ 1570.710553][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1570.710878][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1570.710878][   T73]      netdev_get_by_index+0x5e/0x80
[ 1570.710878][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1570.710878][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1570.710878][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1570.710878][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1570.710878][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1570.710878][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1570.710878][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1570.710878][   T73]      addrconf_dad_begin+0x310/0x670
[ 1570.710878][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1570.710878][   T73]      process_one_work+0x84d/0x18a0
[ 1570.710878][   T73]      worker_thread+0x587/0xd30
[ 1570.710878][   T73]      kthread+0x28a/0x350
[ 1570.710878][   T73]      ret_from_fork+0x31/0x70
[ 1570.710878][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1570.710878][   T73] 
[ 1570.713047][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1570.713047][   T73]      netdev_get_by_index+0x5e/0x80
[ 1570.713047][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1570.713047][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1570.713047][   T73]      ip6_route_add+0x1c/0x140
[ 1570.713047][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1570.713047][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1570.713047][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1570.713047][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1570.713047][   T73]      netlink_rcv_skb+0x130/0x360
[ 1570.713047][   T73]      netlink_unicast+0x449/0x710
[ 1570.713047][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1570.713047][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1570.713047][   T73]      ___sys_sendmsg+0xee/0x170
[ 1570.713047][   T73]      __sys_sendmsg+0xcd/0x170
[ 1570.713047][   T73]      do_syscall_64+0xc6/0x1e0
[ 1570.713047][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1570.713047][   T73] 
[ 1570.715291][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1570.715291][   T73]      netdev_get_by_index+0x5e/0x80
[ 1570.715291][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1570.715291][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1570.715291][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1570.715291][   T73]      ipv6_add_addr+0x411/0x2000
[ 1570.715291][   T73]      inet6_addr_add+0x30e/0xa40
[ 1570.715291][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1570.715291][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1570.715291][   T73]      netlink_rcv_skb+0x130/0x360
[ 1570.715291][   T73]      netlink_unicast+0x449/0x710
[ 1570.715291][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1570.715291][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1570.715291][   T73]      ___sys_sendmsg+0xee/0x170
[ 1570.715291][   T73]      __sys_sendmsg+0xcd/0x170
[ 1570.715291][   T73]      do_syscall_64+0xc6/0x1e0
[ 1570.715291][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1570.715291][   T73] 
[ 1570.717529][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1570.717529][   T73]      netdev_get_by_index+0x5e/0x80
[ 1570.717529][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1570.717529][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1570.717529][   T73]      ip6_route_add+0x1c/0x140
[ 1570.717529][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1570.717529][   T73]      addrconf_add_dev+0xe2/0x170
[ 1570.717529][   T73]      inet6_addr_add+0x12f/0xa40
[ 1570.717529][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1570.717529][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1570.717529][   T73]      netlink_rcv_skb+0x130/0x360
[ 1570.717529][   T73]      netlink_unicast+0x449/0x710
[ 1570.717529][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1570.717529][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1570.717529][   T73]      ___sys_sendmsg+0xee/0x170
[ 1570.717529][   T73]      __sys_sendmsg+0xcd/0x170
[ 1570.717529][   T73]      do_syscall_64+0xc6/0x1e0
[ 1570.717529][   T73] 
[ 1570.719761][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1570.719761][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1570.719761][   T73]      ipv6_find_idev+0x102/0x170
[ 1570.719761][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1570.719761][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1570.719761][   T73]      netlink_rcv_skb+0x130/0x360
[ 1570.719761][   T73]      netlink_unicast+0x449/0x710
[ 1570.719761][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1570.719761][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1570.719761][   T73]      ___sys_sendmsg+0xee/0x170
[ 1570.719761][   T73]      __sys_sendmsg+0xcd/0x170
[ 1570.719761][   T73]      do_syscall_64+0xc6/0x1e0
[ 1570.719761][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1570.719761][   T73] 
[ 1570.721500][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1570.721500][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1570.721500][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1570.721500][   T73]      ipv6_find_idev+0x102/0x170
[ 1570.721500][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1570.721500][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1570.721500][   T73]      netlink_rcv_skb+0x130/0x360
[ 1570.721500][   T73]      netlink_unicast+0x449/0x710
[ 1570.721500][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1570.721500][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1570.721500][   T73]      ___sys_sendmsg+0xee/0x170
[ 1570.721500][   T73]      __sys_sendmsg+0xcd/0x170
[ 1570.721500][   T73]      do_syscall_64+0xc6/0x1e0
[ 1570.721500][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1570.721500][   T73] 
[ 1570.723378][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1570.723678][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1570.723678][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1570.723678][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1570.723678][   T73]      fib6_nh_init+0xa22/0x1580
[ 1570.723678][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1570.723678][   T73]      ip6_route_add+0x1c/0x140
[ 1570.723678][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1570.723678][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1570.723678][   T73]      netlink_rcv_skb+0x130/0x360
[ 1570.723678][   T73]      netlink_unicast+0x449/0x710
[ 1570.723678][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1570.723678][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1570.723678][   T73]      ___sys_sendmsg+0xee/0x170
[ 1570.723678][   T73]      __sys_sendmsg+0xcd/0x170
[ 1570.723678][   T73]      do_syscall_64+0xc6/0x1e0
[ 1570.723678][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1570.723678][   T73] 
[ 1570.725972][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1570.725972][   T73]      dst_init+0x84/0x4a0
[ 1570.725972][   T73]      dst_alloc+0x97/0x150
[ 1570.725972][   T73]      ip6_dst_alloc+0x23/0x90
[ 1570.725972][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1570.725972][   T73]      ip6_pol_route+0x56f/0x840
[ 1570.725972][   T73]      fib6_rule_lookup+0x456/0x630
[ 1570.725972][   T73]      ip6_route_input+0x59c/0xa50
[ 1570.725972][   T73]      ipv6_rcv+0x397/0x810
[ 1570.725972][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1570.725972][   T73]      process_backlog+0x101/0x620
[ 1570.725972][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1570.725972][   T73]      net_rx_action+0x495/0xbe0
[ 1570.725972][   T73]      __do_softirq+0x1b5/0x7f6
[ 1570.725972][   T73] 
[ 1570.727995][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1570.727995][   T73]      netdev_get_by_index+0x5e/0x80
[ 1570.727995][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1570.727995][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1570.727995][   T73]      ip6_route_add+0x1c/0x140
[ 1570.727995][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1570.727995][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1570.727995][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1570.727995][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1570.727995][   T73]      netlink_rcv_skb+0x130/0x360
[ 1570.727995][   T73]      netlink_unicast+0x449/0x710
[ 1570.727995][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1570.727995][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1570.727995][   T73]      ___sys_sendmsg+0xee/0x170
[ 1570.727995][   T73]      __sys_sendmsg+0xcd/0x170
[ 1570.727995][   T73]      do_syscall_64+0xc6/0x1e0
[ 1570.727995][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1570.727995][   T73] 
[ 1570.730417][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1570.730417][   T73]      netdev_get_by_index+0x5e/0x80
[ 1570.730417][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1570.730417][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1570.730417][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1570.730417][   T73]      ipv6_add_addr+0x411/0x2000
[ 1570.730417][   T73]      inet6_addr_add+0x30e/0xa40
[ 1570.730417][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1570.730417][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1570.730417][   T73]      netlink_rcv_skb+0x130/0x360
[ 1570.730417][   T73]      netlink_unicast+0x449/0x710
[ 1570.730417][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1570.730417][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1570.730417][   T73]      ___sys_sendmsg+0xee/0x170
[ 1570.730417][   T73]      __sys_sendmsg+0xcd/0x170
[ 1570.730417][   T73]      do_syscall_64+0xc6/0x1e0
[ 1570.730417][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1570.730417][   T73] 
[ 1570.732967][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1570.732967][   T73]      netdev_get_by_index+0x5e/0x80
[ 1570.732967][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1570.732967][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1570.732967][   T73]      ip6_route_add+0x1c/0x140
[ 1570.732967][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1570.732967][   T73]      addrconf_add_dev+0xe2/0x170
[ 1570.732967][   T73]      inet6_addr_add+0x12f/0xa40
[ 1570.732967][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1570.732967][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1570.732967][   T73]      netlink_rcv_skb+0x130/0x360
[ 1570.732967][   T73]      netlink_unicast+0x449/0x710
[ 1570.732967][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1570.732967][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1570.732967][   T73]      ___sys_sendmsg+0xee/0x170
[ 1570.732967][   T73]      __sys_sendmsg+0xcd/0x170
[ 1570.732967][   T73]      do_syscall_64+0xc6/0x1e0
[ 1570.732967][   T73] 
[ 1570.735358][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1570.735358][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1570.735358][   T73]      ipv6_find_idev+0x102/0x170
[ 1570.735358][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1570.735358][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1570.735358][   T73]      netlink_rcv_skb+0x130/0x360
[ 1570.735358][   T73]      netlink_unicast+0x449/0x710
[ 1570.735358][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1570.735358][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1570.735358][   T73]      ___sys_sendmsg+0xee/0x170
[ 1570.735358][   T73]      __sys_sendmsg+0xcd/0x170
[ 1570.735358][   T73]      do_syscall_64+0xc6/0x1e0
[ 1570.735358][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1570.735358][   T73] 
[ 1570.737270][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1570.737270][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1570.737270][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1570.737270][   T73]      ipv6_find_idev+0x102/0x170
[ 1570.737270][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1570.737270][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1570.737270][   T73]      netlink_rcv_skb+0x130/0x360
[ 1570.737270][   T73]      netlink_unicast+0x449/0x710
[ 1570.737270][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1570.737270][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1570.737270][   T73]      ___sys_sendmsg+0xee/0x170
[ 1570.737270][   T73]      __sys_sendmsg+0xcd/0x170
[ 1570.737270][   T73]      do_syscall_64+0xc6/0x1e0
[ 1570.737270][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1570.737270][   T73] 
[ 1570.739351][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1570.740177][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1570.740177][   T73]      netdev_get_by_index+0x5e/0x80
[ 1570.740177][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1570.740177][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1570.740177][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1570.740177][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1570.740177][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1570.740177][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1570.740177][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1570.740177][   T73]      addrconf_dad_begin+0x310/0x670
[ 1570.740177][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1570.740177][   T73]      process_one_work+0x84d/0x18a0
[ 1570.740177][   T73]      worker_thread+0x587/0xd30
[ 1570.740177][   T73]      kthread+0x28a/0x350
[ 1570.740177][   T73]      ret_from_fork+0x31/0x70
[ 1570.740177][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1570.740177][   T73] 
[ 1570.742324][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1570.742324][   T73]      netdev_get_by_index+0x5e/0x80
[ 1570.742324][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1570.742324][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1570.742324][   T73]      ip6_route_add+0x1c/0x140
[ 1570.742324][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1570.742324][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1570.742324][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1570.742324][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1570.742324][   T73]      netlink_rcv_skb+0x130/0x360
[ 1570.742324][   T73]      netlink_unicast+0x449/0x710
[ 1570.742324][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1570.742324][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1570.742324][   T73]      ___sys_sendmsg+0xee/0x170
[ 1570.742324][   T73]      __sys_sendmsg+0xcd/0x170
[ 1570.742324][   T73]      do_syscall_64+0xc6/0x1e0
[ 1570.742324][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1570.742324][   T73] 
[ 1570.744572][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1570.744572][   T73]      netdev_get_by_index+0x5e/0x80
[ 1570.744572][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1570.744572][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1570.744572][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1570.744572][   T73]      ipv6_add_addr+0x411/0x2000
[ 1570.744572][   T73]      inet6_addr_add+0x30e/0xa40
[ 1570.744572][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1570.744572][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1570.744572][   T73]      netlink_rcv_skb+0x130/0x360
[ 1570.744572][   T73]      netlink_unicast+0x449/0x710
[ 1570.744572][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1570.744572][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1570.744572][   T73]      ___sys_sendmsg+0xee/0x170
[ 1570.744572][   T73]      __sys_sendmsg+0xcd/0x170
[ 1570.744572][   T73]      do_syscall_64+0xc6/0x1e0
[ 1570.744572][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1570.744572][   T73] 
[ 1570.747096][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1570.747096][   T73]      netdev_get_by_index+0x5e/0x80
[ 1570.747096][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1570.747096][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1570.747096][   T73]      ip6_route_add+0x1c/0x140
[ 1570.747096][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1570.747096][   T73]      addrconf_add_dev+0xe2/0x170
[ 1570.747096][   T73]      inet6_addr_add+0x12f/0xa40
[ 1570.747096][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1570.747096][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1570.747096][   T73]      netlink_rcv_skb+0x130/0x360
[ 1570.747096][   T73]      netlink_unicast+0x449/0x710
[ 1570.747096][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1570.747096][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1570.747096][   T73]      ___sys_sendmsg+0xee/0x170
[ 1570.747096][   T73]      __sys_sendmsg+0xcd/0x170
[ 1570.747096][   T73]      do_syscall_64+0xc6/0x1e0
[ 1570.747096][   T73] 
[ 1570.749552][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1570.749552][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1570.749552][   T73]      ipv6_find_idev+0x102/0x170
[ 1570.749552][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1570.749552][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1570.749552][   T73]      netlink_rcv_skb+0x130/0x360
[ 1570.749552][   T73]      netlink_unicast+0x449/0x710
[ 1570.749552][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1570.749552][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1570.749552][   T73]      ___sys_sendmsg+0xee/0x170
[ 1570.749552][   T73]      __sys_sendmsg+0xcd/0x170
[ 1570.749552][   T73]      do_syscall_64+0xc6/0x1e0
[ 1570.749552][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1570.749552][   T73] 
[ 1570.751464][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1570.751464][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1570.751464][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1570.751464][   T73]      ipv6_find_idev+0x102/0x170
[ 1570.751464][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1570.751464][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1570.751464][   T73]      netlink_rcv_skb+0x130/0x360
[ 1570.751464][   T73]      netlink_unicast+0x449/0x710
[ 1570.751464][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1570.751464][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1570.751464][   T73]      ___sys_sendmsg+0xee/0x170
[ 1570.751464][   T73]      __sys_sendmsg+0xcd/0x170
[ 1570.751464][   T73]      do_syscall_64+0xc6/0x1e0
[ 1570.751464][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1570.751464][   T73] 
[ 1580.895828][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1580.896688][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1580.896688][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1580.896688][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1580.896688][   T73]      fib6_nh_init+0xa22/0x1580
[ 1580.896688][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1580.896688][   T73]      ip6_route_add+0x1c/0x140
[ 1580.896688][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1580.896688][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1580.896688][   T73]      netlink_rcv_skb+0x130/0x360
[ 1580.896688][   T73]      netlink_unicast+0x449/0x710
[ 1580.896688][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1580.896688][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1580.896688][   T73]      ___sys_sendmsg+0xee/0x170
[ 1580.896688][   T73]      __sys_sendmsg+0xcd/0x170
[ 1580.896688][   T73]      do_syscall_64+0xc6/0x1e0
[ 1580.896688][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1580.896688][   T73] 
[ 1580.899781][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1580.899781][   T73]      dst_init+0x84/0x4a0
[ 1580.899781][   T73]      dst_alloc+0x97/0x150
[ 1580.899781][   T73]      ip6_dst_alloc+0x23/0x90
[ 1580.899781][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1580.899781][   T73]      ip6_pol_route+0x56f/0x840
[ 1580.899781][   T73]      fib6_rule_lookup+0x456/0x630
[ 1580.899781][   T73]      ip6_route_input+0x59c/0xa50
[ 1580.899781][   T73]      ipv6_rcv+0x397/0x810
[ 1580.899781][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1580.899781][   T73]      process_backlog+0x101/0x620
[ 1580.899781][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1580.899781][   T73]      net_rx_action+0x495/0xbe0
[ 1580.899781][   T73]      __do_softirq+0x1b5/0x7f6
[ 1580.899781][   T73] 
[ 1580.902543][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1580.902543][   T73]      netdev_get_by_index+0x5e/0x80
[ 1580.902543][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1580.902543][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1580.902543][   T73]      ip6_route_add+0x1c/0x140
[ 1580.902543][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1580.902543][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1580.902543][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1580.902543][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1580.902543][   T73]      netlink_rcv_skb+0x130/0x360
[ 1580.902543][   T73]      netlink_unicast+0x449/0x710
[ 1580.902543][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1580.902543][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1580.902543][   T73]      ___sys_sendmsg+0xee/0x170
[ 1580.902543][   T73]      __sys_sendmsg+0xcd/0x170
[ 1580.902543][   T73]      do_syscall_64+0xc6/0x1e0
[ 1580.902543][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1580.902543][   T73] 
[ 1580.905661][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1580.905661][   T73]      netdev_get_by_index+0x5e/0x80
[ 1580.905661][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1580.905661][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1580.905661][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1580.905661][   T73]      ipv6_add_addr+0x411/0x2000
[ 1580.905661][   T73]      inet6_addr_add+0x30e/0xa40
[ 1580.905661][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1580.905661][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1580.905661][   T73]      netlink_rcv_skb+0x130/0x360
[ 1580.905661][   T73]      netlink_unicast+0x449/0x710
[ 1580.905661][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1580.905661][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1580.905661][   T73]      ___sys_sendmsg+0xee/0x170
[ 1580.905661][   T73]      __sys_sendmsg+0xcd/0x170
[ 1580.905661][   T73]      do_syscall_64+0xc6/0x1e0
[ 1580.905661][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1580.905661][   T73] 
[ 1580.909396][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1580.909396][   T73]      netdev_get_by_index+0x5e/0x80
[ 1580.909396][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1580.909396][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1580.909396][   T73]      ip6_route_add+0x1c/0x140
[ 1580.909396][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1580.909396][   T73]      addrconf_add_dev+0xe2/0x170
[ 1580.909396][   T73]      inet6_addr_add+0x12f/0xa40
[ 1580.909396][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1580.909396][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1580.909396][   T73]      netlink_rcv_skb+0x130/0x360
[ 1580.909396][   T73]      netlink_unicast+0x449/0x710
[ 1580.909396][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1580.909396][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1580.909396][   T73]      ___sys_sendmsg+0xee/0x170
[ 1580.909396][   T73]      __sys_sendmsg+0xcd/0x170
[ 1580.909396][   T73]      do_syscall_64+0xc6/0x1e0
[ 1580.909396][   T73] 
[ 1580.913365][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1580.913365][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1580.913365][   T73]      ipv6_find_idev+0x102/0x170
[ 1580.913365][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1580.913365][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1580.913365][   T73]      netlink_rcv_skb+0x130/0x360
[ 1580.913365][   T73]      netlink_unicast+0x449/0x710
[ 1580.913365][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1580.913365][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1580.913365][   T73]      ___sys_sendmsg+0xee/0x170
[ 1580.913365][   T73]      __sys_sendmsg+0xcd/0x170
[ 1580.913365][   T73]      do_syscall_64+0xc6/0x1e0
[ 1580.913365][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1580.913365][   T73] 
[ 1580.916365][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1580.916365][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1580.916365][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1580.916365][   T73]      ipv6_find_idev+0x102/0x170
[ 1580.916365][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1580.916365][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1580.916365][   T73]      netlink_rcv_skb+0x130/0x360
[ 1580.916365][   T73]      netlink_unicast+0x449/0x710
[ 1580.916365][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1580.916365][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1580.916365][   T73]      ___sys_sendmsg+0xee/0x170
[ 1580.916365][   T73]      __sys_sendmsg+0xcd/0x170
[ 1580.916365][   T73]      do_syscall_64+0xc6/0x1e0
[ 1580.916365][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1580.916365][   T73] 
[ 1580.919787][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1580.920328][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1580.920328][   T73]      netdev_get_by_index+0x5e/0x80
[ 1580.920328][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1580.920328][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1580.920328][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1580.920328][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1580.920328][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1580.920328][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1580.920328][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1580.920328][   T73]      addrconf_dad_begin+0x310/0x670
[ 1580.920328][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1580.920328][   T73]      process_one_work+0x84d/0x18a0
[ 1580.920328][   T73]      worker_thread+0x587/0xd30
[ 1580.920328][   T73]      kthread+0x28a/0x350
[ 1580.920328][   T73]      ret_from_fork+0x31/0x70
[ 1580.920328][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1580.920328][   T73] 
[ 1580.924003][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1580.924003][   T73]      netdev_get_by_index+0x5e/0x80
[ 1580.924003][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1580.924003][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1580.924003][   T73]      ip6_route_add+0x1c/0x140
[ 1580.924003][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1580.924003][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1580.924003][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1580.924003][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1580.924003][   T73]      netlink_rcv_skb+0x130/0x360
[ 1580.924003][   T73]      netlink_unicast+0x449/0x710
[ 1580.924003][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1580.924003][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1580.924003][   T73]      ___sys_sendmsg+0xee/0x170
[ 1580.924003][   T73]      __sys_sendmsg+0xcd/0x170
[ 1580.924003][   T73]      do_syscall_64+0xc6/0x1e0
[ 1580.924003][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1580.924003][   T73] 
[ 1580.928095][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1580.928095][   T73]      netdev_get_by_index+0x5e/0x80
[ 1580.928095][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1580.928095][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1580.928095][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1580.928095][   T73]      ipv6_add_addr+0x411/0x2000
[ 1580.928095][   T73]      inet6_addr_add+0x30e/0xa40
[ 1580.928095][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1580.928095][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1580.928095][   T73]      netlink_rcv_skb+0x130/0x360
[ 1580.928095][   T73]      netlink_unicast+0x449/0x710
[ 1580.928095][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1580.928095][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1580.928095][   T73]      ___sys_sendmsg+0xee/0x170
[ 1580.928095][   T73]      __sys_sendmsg+0xcd/0x170
[ 1580.928095][   T73]      do_syscall_64+0xc6/0x1e0
[ 1580.928095][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1580.928095][   T73] 
[ 1580.932450][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1580.932450][   T73]      netdev_get_by_index+0x5e/0x80
[ 1580.932450][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1580.932450][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1580.932450][   T73]      ip6_route_add+0x1c/0x140
[ 1580.932450][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1580.932450][   T73]      addrconf_add_dev+0xe2/0x170
[ 1580.932450][   T73]      inet6_addr_add+0x12f/0xa40
[ 1580.932450][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1580.932450][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1580.932450][   T73]      netlink_rcv_skb+0x130/0x360
[ 1580.932450][   T73]      netlink_unicast+0x449/0x710
[ 1580.932450][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1580.932450][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1580.932450][   T73]      ___sys_sendmsg+0xee/0x170
[ 1580.932450][   T73]      __sys_sendmsg+0xcd/0x170
[ 1580.932450][   T73]      do_syscall_64+0xc6/0x1e0
[ 1580.932450][   T73] 
[ 1580.937642][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1580.937642][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1580.937642][   T73]      ipv6_find_idev+0x102/0x170
[ 1580.937642][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1580.937642][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1580.937642][   T73]      netlink_rcv_skb+0x130/0x360
[ 1580.937642][   T73]      netlink_unicast+0x449/0x710
[ 1580.937642][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1580.937642][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1580.937642][   T73]      ___sys_sendmsg+0xee/0x170
[ 1580.937642][   T73]      __sys_sendmsg+0xcd/0x170
[ 1580.937642][   T73]      do_syscall_64+0xc6/0x1e0
[ 1580.937642][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1580.937642][   T73] 
[ 1580.941009][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1580.941009][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1580.941009][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1580.941009][   T73]      ipv6_find_idev+0x102/0x170
[ 1580.941009][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1580.941009][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1580.941009][   T73]      netlink_rcv_skb+0x130/0x360
[ 1580.941009][   T73]      netlink_unicast+0x449/0x710
[ 1580.941009][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1580.941009][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1580.941009][   T73]      ___sys_sendmsg+0xee/0x170
[ 1580.941009][   T73]      __sys_sendmsg+0xcd/0x170
[ 1580.941009][   T73]      do_syscall_64+0xc6/0x1e0
[ 1580.941009][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1580.941009][   T73] 
[ 1580.944528][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1580.945088][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1580.945088][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1580.945088][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1580.945088][   T73]      fib6_nh_init+0xa22/0x1580
[ 1580.945088][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1580.945088][   T73]      ip6_route_add+0x1c/0x140
[ 1580.945088][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1580.945088][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1580.945088][   T73]      netlink_rcv_skb+0x130/0x360
[ 1580.945088][   T73]      netlink_unicast+0x449/0x710
[ 1580.945088][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1580.945088][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1580.945088][   T73]      ___sys_sendmsg+0xee/0x170
[ 1580.945088][   T73]      __sys_sendmsg+0xcd/0x170
[ 1580.945088][   T73]      do_syscall_64+0xc6/0x1e0
[ 1580.945088][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1580.945088][   T73] 
[ 1580.949025][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1580.949025][   T73]      dst_init+0x84/0x4a0
[ 1580.949025][   T73]      dst_alloc+0x97/0x150
[ 1580.949025][   T73]      ip6_dst_alloc+0x23/0x90
[ 1580.949025][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1580.949025][   T73]      ip6_pol_route+0x56f/0x840
[ 1580.949025][   T73]      fib6_rule_lookup+0x456/0x630
[ 1580.949025][   T73]      ip6_route_input+0x59c/0xa50
[ 1580.949025][   T73]      ipv6_rcv+0x397/0x810
[ 1580.949025][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1580.949025][   T73]      process_backlog+0x101/0x620
[ 1580.949025][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1580.949025][   T73]      net_rx_action+0x495/0xbe0
[ 1580.949025][   T73]      __do_softirq+0x1b5/0x7f6
[ 1580.949025][   T73] 
[ 1580.952608][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1580.952608][   T73]      netdev_get_by_index+0x5e/0x80
[ 1580.952608][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1580.952608][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1580.952608][   T73]      ip6_route_add+0x1c/0x140
[ 1580.952608][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1580.952608][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1580.952608][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1580.952608][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1580.952608][   T73]      netlink_rcv_skb+0x130/0x360
[ 1580.952608][   T73]      netlink_unicast+0x449/0x710
[ 1580.952608][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1580.952608][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1580.952608][   T73]      ___sys_sendmsg+0xee/0x170
[ 1580.952608][   T73]      __sys_sendmsg+0xcd/0x170
[ 1580.952608][   T73]      do_syscall_64+0xc6/0x1e0
[ 1580.952608][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1580.952608][   T73] 
[ 1580.957061][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1580.957061][   T73]      netdev_get_by_index+0x5e/0x80
[ 1580.957061][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1580.957061][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1580.957061][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1580.957061][   T73]      ipv6_add_addr+0x411/0x2000
[ 1580.957061][   T73]      inet6_addr_add+0x30e/0xa40
[ 1580.957061][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1580.957061][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1580.957061][   T73]      netlink_rcv_skb+0x130/0x360
[ 1580.957061][   T73]      netlink_unicast+0x449/0x710
[ 1580.957061][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1580.957061][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1580.957061][   T73]      ___sys_sendmsg+0xee/0x170
[ 1580.957061][   T73]      __sys_sendmsg+0xcd/0x170
[ 1580.957061][   T73]      do_syscall_64+0xc6/0x1e0
[ 1580.957061][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1580.957061][   T73] 
[ 1580.961602][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1580.961602][   T73]      netdev_get_by_index+0x5e/0x80
[ 1580.961602][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1580.961602][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1580.961602][   T73]      ip6_route_add+0x1c/0x140
[ 1580.961602][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1580.961602][   T73]      addrconf_add_dev+0xe2/0x170
[ 1580.961602][   T73]      inet6_addr_add+0x12f/0xa40
[ 1580.961602][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1580.961602][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1580.961602][   T73]      netlink_rcv_skb+0x130/0x360
[ 1580.961602][   T73]      netlink_unicast+0x449/0x710
[ 1580.961602][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1580.961602][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1580.961602][   T73]      ___sys_sendmsg+0xee/0x170
[ 1580.961602][   T73]      __sys_sendmsg+0xcd/0x170
[ 1580.961602][   T73]      do_syscall_64+0xc6/0x1e0
[ 1580.961602][   T73] 
[ 1580.966527][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1580.966527][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1580.966527][   T73]      ipv6_find_idev+0x102/0x170
[ 1580.966527][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1580.966527][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1580.966527][   T73]      netlink_rcv_skb+0x130/0x360
[ 1580.966527][   T73]      netlink_unicast+0x449/0x710
[ 1580.966527][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1580.966527][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1580.966527][   T73]      ___sys_sendmsg+0xee/0x170
[ 1580.966527][   T73]      __sys_sendmsg+0xcd/0x170
[ 1580.966527][   T73]      do_syscall_64+0xc6/0x1e0
[ 1580.966527][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1580.966527][   T73] 
[ 1580.969820][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1580.969820][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1580.969820][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1580.969820][   T73]      ipv6_find_idev+0x102/0x170
[ 1580.969820][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1580.969820][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1580.969820][   T73]      netlink_rcv_skb+0x130/0x360
[ 1580.969820][   T73]      netlink_unicast+0x449/0x710
[ 1580.969820][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1580.969820][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1580.969820][   T73]      ___sys_sendmsg+0xee/0x170
[ 1580.969820][   T73]      __sys_sendmsg+0xcd/0x170
[ 1580.969820][   T73]      do_syscall_64+0xc6/0x1e0
[ 1580.969820][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1580.969820][   T73] 
[ 1580.972955][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1580.973497][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1580.973497][   T73]      netdev_get_by_index+0x5e/0x80
[ 1580.973497][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1580.973497][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1580.973497][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1580.973497][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1580.973497][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1580.973497][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1580.973497][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1580.973497][   T73]      addrconf_dad_begin+0x310/0x670
[ 1580.973497][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1580.973497][   T73]      process_one_work+0x84d/0x18a0
[ 1580.973497][   T73]      worker_thread+0x587/0xd30
[ 1580.973497][   T73]      kthread+0x28a/0x350
[ 1580.973497][   T73]      ret_from_fork+0x31/0x70
[ 1580.973497][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1580.973497][   T73] 
[ 1580.976584][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1580.976584][   T73]      netdev_get_by_index+0x5e/0x80
[ 1580.976584][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1580.976584][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1580.976584][   T73]      ip6_route_add+0x1c/0x140
[ 1580.976584][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1580.976584][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1580.976584][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1580.976584][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1580.976584][   T73]      netlink_rcv_skb+0x130/0x360
[ 1580.976584][   T73]      netlink_unicast+0x449/0x710
[ 1580.976584][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1580.976584][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1580.976584][   T73]      ___sys_sendmsg+0xee/0x170
[ 1580.976584][   T73]      __sys_sendmsg+0xcd/0x170
[ 1580.976584][   T73]      do_syscall_64+0xc6/0x1e0
[ 1580.976584][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1580.976584][   T73] 
[ 1580.980005][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1580.980005][   T73]      netdev_get_by_index+0x5e/0x80
[ 1580.980005][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1580.980005][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1580.980005][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1580.980005][   T73]      ipv6_add_addr+0x411/0x2000
[ 1580.980005][   T73]      inet6_addr_add+0x30e/0xa40
[ 1580.980005][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1580.980005][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1580.980005][   T73]      netlink_rcv_skb+0x130/0x360
[ 1580.980005][   T73]      netlink_unicast+0x449/0x710
[ 1580.980005][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1580.980005][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1580.980005][   T73]      ___sys_sendmsg+0xee/0x170
[ 1580.980005][   T73]      __sys_sendmsg+0xcd/0x170
[ 1580.980005][   T73]      do_syscall_64+0xc6/0x1e0
[ 1580.980005][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1580.980005][   T73] 
[ 1580.983497][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1580.983497][   T73]      netdev_get_by_index+0x5e/0x80
[ 1580.983497][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1580.983497][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1580.983497][   T73]      ip6_route_add+0x1c/0x140
[ 1580.983497][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1580.983497][   T73]      addrconf_add_dev+0xe2/0x170
[ 1580.983497][   T73]      inet6_addr_add+0x12f/0xa40
[ 1580.983497][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1580.983497][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1580.983497][   T73]      netlink_rcv_skb+0x130/0x360
[ 1580.983497][   T73]      netlink_unicast+0x449/0x710
[ 1580.983497][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1580.983497][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1580.983497][   T73]      ___sys_sendmsg+0xee/0x170
[ 1580.983497][   T73]      __sys_sendmsg+0xcd/0x170
[ 1580.983497][   T73]      do_syscall_64+0xc6/0x1e0
[ 1580.983497][   T73] 
[ 1580.986952][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1580.986952][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1580.986952][   T73]      ipv6_find_idev+0x102/0x170
[ 1580.986952][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1580.986952][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1580.986952][   T73]      netlink_rcv_skb+0x130/0x360
[ 1580.986952][   T73]      netlink_unicast+0x449/0x710
[ 1580.986952][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1580.986952][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1580.986952][   T73]      ___sys_sendmsg+0xee/0x170
[ 1580.986952][   T73]      __sys_sendmsg+0xcd/0x170
[ 1580.986952][   T73]      do_syscall_64+0xc6/0x1e0
[ 1580.986952][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1580.986952][   T73] 
[ 1580.989630][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1580.989630][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1580.989630][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1580.989630][   T73]      ipv6_find_idev+0x102/0x170
[ 1580.989630][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1580.989630][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1580.989630][   T73]      netlink_rcv_skb+0x130/0x360
[ 1580.989630][   T73]      netlink_unicast+0x449/0x710
[ 1580.989630][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1580.989630][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1580.989630][   T73]      ___sys_sendmsg+0xee/0x170
[ 1580.989630][   T73]      __sys_sendmsg+0xcd/0x170
[ 1580.989630][   T73]      do_syscall_64+0xc6/0x1e0
[ 1580.989630][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1580.989630][   T73] 
[ 1591.151730][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1591.152215][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1591.152215][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1591.152215][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1591.152215][   T73]      fib6_nh_init+0xa22/0x1580
[ 1591.152215][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1591.152215][   T73]      ip6_route_add+0x1c/0x140
[ 1591.152215][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1591.152215][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1591.152215][   T73]      netlink_rcv_skb+0x130/0x360
[ 1591.152215][   T73]      netlink_unicast+0x449/0x710
[ 1591.152215][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1591.152215][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1591.152215][   T73]      ___sys_sendmsg+0xee/0x170
[ 1591.152215][   T73]      __sys_sendmsg+0xcd/0x170
[ 1591.152215][   T73]      do_syscall_64+0xc6/0x1e0
[ 1591.152215][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1591.152215][   T73] 
[ 1591.154507][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1591.154507][   T73]      dst_init+0x84/0x4a0
[ 1591.154507][   T73]      dst_alloc+0x97/0x150
[ 1591.154507][   T73]      ip6_dst_alloc+0x23/0x90
[ 1591.154507][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1591.154507][   T73]      ip6_pol_route+0x56f/0x840
[ 1591.154507][   T73]      fib6_rule_lookup+0x456/0x630
[ 1591.154507][   T73]      ip6_route_input+0x59c/0xa50
[ 1591.154507][   T73]      ipv6_rcv+0x397/0x810
[ 1591.154507][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1591.154507][   T73]      process_backlog+0x101/0x620
[ 1591.154507][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1591.154507][   T73]      net_rx_action+0x495/0xbe0
[ 1591.154507][   T73]      __do_softirq+0x1b5/0x7f6
[ 1591.154507][   T73] 
[ 1591.156512][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1591.156512][   T73]      netdev_get_by_index+0x5e/0x80
[ 1591.156512][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1591.156512][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1591.156512][   T73]      ip6_route_add+0x1c/0x140
[ 1591.156512][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1591.156512][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1591.156512][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1591.156512][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1591.156512][   T73]      netlink_rcv_skb+0x130/0x360
[ 1591.156512][   T73]      netlink_unicast+0x449/0x710
[ 1591.156512][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1591.156512][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1591.156512][   T73]      ___sys_sendmsg+0xee/0x170
[ 1591.156512][   T73]      __sys_sendmsg+0xcd/0x170
[ 1591.156512][   T73]      do_syscall_64+0xc6/0x1e0
[ 1591.156512][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1591.156512][   T73] 
[ 1591.158910][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1591.158910][   T73]      netdev_get_by_index+0x5e/0x80
[ 1591.158910][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1591.158910][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1591.158910][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1591.158910][   T73]      ipv6_add_addr+0x411/0x2000
[ 1591.158910][   T73]      inet6_addr_add+0x30e/0xa40
[ 1591.158910][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1591.158910][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1591.158910][   T73]      netlink_rcv_skb+0x130/0x360
[ 1591.158910][   T73]      netlink_unicast+0x449/0x710
[ 1591.158910][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1591.158910][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1591.158910][   T73]      ___sys_sendmsg+0xee/0x170
[ 1591.158910][   T73]      __sys_sendmsg+0xcd/0x170
[ 1591.158910][   T73]      do_syscall_64+0xc6/0x1e0
[ 1591.158910][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1591.158910][   T73] 
[ 1591.161290][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1591.161290][   T73]      netdev_get_by_index+0x5e/0x80
[ 1591.161290][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1591.161290][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1591.161290][   T73]      ip6_route_add+0x1c/0x140
[ 1591.161290][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1591.161290][   T73]      addrconf_add_dev+0xe2/0x170
[ 1591.161290][   T73]      inet6_addr_add+0x12f/0xa40
[ 1591.161290][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1591.161290][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1591.161290][   T73]      netlink_rcv_skb+0x130/0x360
[ 1591.161290][   T73]      netlink_unicast+0x449/0x710
[ 1591.161290][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1591.161290][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1591.161290][   T73]      ___sys_sendmsg+0xee/0x170
[ 1591.161290][   T73]      __sys_sendmsg+0xcd/0x170
[ 1591.161290][   T73]      do_syscall_64+0xc6/0x1e0
[ 1591.161290][   T73] 
[ 1591.163664][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1591.163664][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1591.163664][   T73]      ipv6_find_idev+0x102/0x170
[ 1591.163664][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1591.163664][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1591.163664][   T73]      netlink_rcv_skb+0x130/0x360
[ 1591.163664][   T73]      netlink_unicast+0x449/0x710
[ 1591.163664][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1591.163664][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1591.163664][   T73]      ___sys_sendmsg+0xee/0x170
[ 1591.163664][   T73]      __sys_sendmsg+0xcd/0x170
[ 1591.163664][   T73]      do_syscall_64+0xc6/0x1e0
[ 1591.163664][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1591.163664][   T73] 
[ 1591.165531][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1591.165531][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1591.165531][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1591.165531][   T73]      ipv6_find_idev+0x102/0x170
[ 1591.165531][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1591.165531][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1591.165531][   T73]      netlink_rcv_skb+0x130/0x360
[ 1591.165531][   T73]      netlink_unicast+0x449/0x710
[ 1591.165531][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1591.165531][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1591.165531][   T73]      ___sys_sendmsg+0xee/0x170
[ 1591.165531][   T73]      __sys_sendmsg+0xcd/0x170
[ 1591.165531][   T73]      do_syscall_64+0xc6/0x1e0
[ 1591.165531][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1591.165531][   T73] 
[ 1591.167561][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1591.167915][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1591.167915][   T73]      netdev_get_by_index+0x5e/0x80
[ 1591.167915][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1591.167915][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1591.167915][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1591.167915][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1591.167915][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1591.167915][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1591.167915][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1591.167915][   T73]      addrconf_dad_begin+0x310/0x670
[ 1591.167915][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1591.167915][   T73]      process_one_work+0x84d/0x18a0
[ 1591.167915][   T73]      worker_thread+0x587/0xd30
[ 1591.167915][   T73]      kthread+0x28a/0x350
[ 1591.167915][   T73]      ret_from_fork+0x31/0x70
[ 1591.167915][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1591.167915][   T73] 
[ 1591.170205][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1591.170205][   T73]      netdev_get_by_index+0x5e/0x80
[ 1591.170205][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1591.170205][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1591.170205][   T73]      ip6_route_add+0x1c/0x140
[ 1591.170205][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1591.170205][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1591.170205][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1591.170205][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1591.170205][   T73]      netlink_rcv_skb+0x130/0x360
[ 1591.170205][   T73]      netlink_unicast+0x449/0x710
[ 1591.170205][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1591.170205][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1591.170205][   T73]      ___sys_sendmsg+0xee/0x170
[ 1591.170205][   T73]      __sys_sendmsg+0xcd/0x170
[ 1591.170205][   T73]      do_syscall_64+0xc6/0x1e0
[ 1591.170205][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1591.170205][   T73] 
[ 1591.172605][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1591.172605][   T73]      netdev_get_by_index+0x5e/0x80
[ 1591.172605][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1591.172605][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1591.172605][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1591.172605][   T73]      ipv6_add_addr+0x411/0x2000
[ 1591.172605][   T73]      inet6_addr_add+0x30e/0xa40
[ 1591.172605][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1591.172605][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1591.172605][   T73]      netlink_rcv_skb+0x130/0x360
[ 1591.172605][   T73]      netlink_unicast+0x449/0x710
[ 1591.172605][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1591.172605][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1591.172605][   T73]      ___sys_sendmsg+0xee/0x170
[ 1591.172605][   T73]      __sys_sendmsg+0xcd/0x170
[ 1591.172605][   T73]      do_syscall_64+0xc6/0x1e0
[ 1591.172605][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1591.172605][   T73] 
[ 1591.175159][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1591.175159][   T73]      netdev_get_by_index+0x5e/0x80
[ 1591.175159][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1591.175159][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1591.175159][   T73]      ip6_route_add+0x1c/0x140
[ 1591.175159][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1591.175159][   T73]      addrconf_add_dev+0xe2/0x170
[ 1591.175159][   T73]      inet6_addr_add+0x12f/0xa40
[ 1591.175159][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1591.175159][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1591.175159][   T73]      netlink_rcv_skb+0x130/0x360
[ 1591.175159][   T73]      netlink_unicast+0x449/0x710
[ 1591.175159][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1591.175159][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1591.175159][   T73]      ___sys_sendmsg+0xee/0x170
[ 1591.175159][   T73]      __sys_sendmsg+0xcd/0x170
[ 1591.175159][   T73]      do_syscall_64+0xc6/0x1e0
[ 1591.175159][   T73] 
[ 1591.177359][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1591.177359][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1591.177359][   T73]      ipv6_find_idev+0x102/0x170
[ 1591.177359][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1591.177359][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1591.177359][   T73]      netlink_rcv_skb+0x130/0x360
[ 1591.177359][   T73]      netlink_unicast+0x449/0x710
[ 1591.177359][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1591.177359][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1591.177359][   T73]      ___sys_sendmsg+0xee/0x170
[ 1591.177359][   T73]      __sys_sendmsg+0xcd/0x170
[ 1591.177359][   T73]      do_syscall_64+0xc6/0x1e0
[ 1591.177359][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1591.177359][   T73] 
[ 1591.179112][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1591.179112][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1591.179112][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1591.179112][   T73]      ipv6_find_idev+0x102/0x170
[ 1591.179112][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1591.179112][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1591.179112][   T73]      netlink_rcv_skb+0x130/0x360
[ 1591.179112][   T73]      netlink_unicast+0x449/0x710
[ 1591.179112][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1591.179112][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1591.179112][   T73]      ___sys_sendmsg+0xee/0x170
[ 1591.179112][   T73]      __sys_sendmsg+0xcd/0x170
[ 1591.179112][   T73]      do_syscall_64+0xc6/0x1e0
[ 1591.179112][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1591.179112][   T73] 
[ 1591.180989][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1591.181288][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1591.181288][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1591.181288][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1591.181288][   T73]      fib6_nh_init+0xa22/0x1580
[ 1591.181288][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1591.181288][   T73]      ip6_route_add+0x1c/0x140
[ 1591.181288][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1591.181288][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1591.181288][   T73]      netlink_rcv_skb+0x130/0x360
[ 1591.181288][   T73]      netlink_unicast+0x449/0x710
[ 1591.181288][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1591.181288][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1591.181288][   T73]      ___sys_sendmsg+0xee/0x170
[ 1591.181288][   T73]      __sys_sendmsg+0xcd/0x170
[ 1591.181288][   T73]      do_syscall_64+0xc6/0x1e0
[ 1591.181288][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1591.181288][   T73] 
[ 1591.183531][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1591.183531][   T73]      dst_init+0x84/0x4a0
[ 1591.183531][   T73]      dst_alloc+0x97/0x150
[ 1591.183531][   T73]      ip6_dst_alloc+0x23/0x90
[ 1591.183531][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1591.183531][   T73]      ip6_pol_route+0x56f/0x840
[ 1591.183531][   T73]      fib6_rule_lookup+0x456/0x630
[ 1591.183531][   T73]      ip6_route_input+0x59c/0xa50
[ 1591.183531][   T73]      ipv6_rcv+0x397/0x810
[ 1591.183531][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1591.183531][   T73]      process_backlog+0x101/0x620
[ 1591.183531][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1591.183531][   T73]      net_rx_action+0x495/0xbe0
[ 1591.183531][   T73]      __do_softirq+0x1b5/0x7f6
[ 1591.183531][   T73] 
[ 1591.185557][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1591.185557][   T73]      netdev_get_by_index+0x5e/0x80
[ 1591.185557][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1591.185557][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1591.185557][   T73]      ip6_route_add+0x1c/0x140
[ 1591.185557][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1591.185557][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1591.185557][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1591.185557][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1591.185557][   T73]      netlink_rcv_skb+0x130/0x360
[ 1591.185557][   T73]      netlink_unicast+0x449/0x710
[ 1591.185557][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1591.185557][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1591.185557][   T73]      ___sys_sendmsg+0xee/0x170
[ 1591.185557][   T73]      __sys_sendmsg+0xcd/0x170
[ 1591.185557][   T73]      do_syscall_64+0xc6/0x1e0
[ 1591.185557][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1591.185557][   T73] 
[ 1591.188055][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1591.188055][   T73]      netdev_get_by_index+0x5e/0x80
[ 1591.188055][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1591.188055][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1591.188055][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1591.188055][   T73]      ipv6_add_addr+0x411/0x2000
[ 1591.188055][   T73]      inet6_addr_add+0x30e/0xa40
[ 1591.188055][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1591.188055][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1591.188055][   T73]      netlink_rcv_skb+0x130/0x360
[ 1591.188055][   T73]      netlink_unicast+0x449/0x710
[ 1591.188055][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1591.188055][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1591.188055][   T73]      ___sys_sendmsg+0xee/0x170
[ 1591.188055][   T73]      __sys_sendmsg+0xcd/0x170
[ 1591.188055][   T73]      do_syscall_64+0xc6/0x1e0
[ 1591.188055][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1591.188055][   T73] 
[ 1591.190517][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1591.190517][   T73]      netdev_get_by_index+0x5e/0x80
[ 1591.190517][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1591.190517][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1591.190517][   T73]      ip6_route_add+0x1c/0x140
[ 1591.190517][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1591.190517][   T73]      addrconf_add_dev+0xe2/0x170
[ 1591.190517][   T73]      inet6_addr_add+0x12f/0xa40
[ 1591.190517][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1591.190517][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1591.190517][   T73]      netlink_rcv_skb+0x130/0x360
[ 1591.190517][   T73]      netlink_unicast+0x449/0x710
[ 1591.190517][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1591.190517][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1591.190517][   T73]      ___sys_sendmsg+0xee/0x170
[ 1591.190517][   T73]      __sys_sendmsg+0xcd/0x170
[ 1591.190517][   T73]      do_syscall_64+0xc6/0x1e0
[ 1591.190517][   T73] 
[ 1591.193022][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1591.193022][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1591.193022][   T73]      ipv6_find_idev+0x102/0x170
[ 1591.193022][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1591.193022][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1591.193022][   T73]      netlink_rcv_skb+0x130/0x360
[ 1591.193022][   T73]      netlink_unicast+0x449/0x710
[ 1591.193022][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1591.193022][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1591.193022][   T73]      ___sys_sendmsg+0xee/0x170
[ 1591.193022][   T73]      __sys_sendmsg+0xcd/0x170
[ 1591.193022][   T73]      do_syscall_64+0xc6/0x1e0
[ 1591.193022][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1591.193022][   T73] 
[ 1591.194912][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1591.194912][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1591.194912][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1591.194912][   T73]      ipv6_find_idev+0x102/0x170
[ 1591.194912][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1591.194912][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1591.194912][   T73]      netlink_rcv_skb+0x130/0x360
[ 1591.194912][   T73]      netlink_unicast+0x449/0x710
[ 1591.194912][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1591.194912][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1591.194912][   T73]      ___sys_sendmsg+0xee/0x170
[ 1591.194912][   T73]      __sys_sendmsg+0xcd/0x170
[ 1591.194912][   T73]      do_syscall_64+0xc6/0x1e0
[ 1591.194912][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1591.194912][   T73] 
[ 1591.196962][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1591.197259][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1591.197259][   T73]      netdev_get_by_index+0x5e/0x80
[ 1591.197259][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1591.197259][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1591.197259][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1591.197259][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1591.197259][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1591.197259][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1591.197259][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1591.197259][   T73]      addrconf_dad_begin+0x310/0x670
[ 1591.197259][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1591.197259][   T73]      process_one_work+0x84d/0x18a0
[ 1591.197259][   T73]      worker_thread+0x587/0xd30
[ 1591.197259][   T73]      kthread+0x28a/0x350
[ 1591.197259][   T73]      ret_from_fork+0x31/0x70
[ 1591.197259][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1591.197259][   T73] 
[ 1591.199691][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1591.199691][   T73]      netdev_get_by_index+0x5e/0x80
[ 1591.199691][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1591.199691][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1591.199691][   T73]      ip6_route_add+0x1c/0x140
[ 1591.199691][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1591.199691][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1591.199691][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1591.199691][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1591.199691][   T73]      netlink_rcv_skb+0x130/0x360
[ 1591.199691][   T73]      netlink_unicast+0x449/0x710
[ 1591.199691][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1591.199691][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1591.199691][   T73]      ___sys_sendmsg+0xee/0x170
[ 1591.199691][   T73]      __sys_sendmsg+0xcd/0x170
[ 1591.199691][   T73]      do_syscall_64+0xc6/0x1e0
[ 1591.199691][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1591.199691][   T73] 
[ 1591.202193][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1591.202193][   T73]      netdev_get_by_index+0x5e/0x80
[ 1591.202193][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1591.202193][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1591.202193][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1591.202193][   T73]      ipv6_add_addr+0x411/0x2000
[ 1591.202193][   T73]      inet6_addr_add+0x30e/0xa40
[ 1591.202193][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1591.202193][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1591.202193][   T73]      netlink_rcv_skb+0x130/0x360
[ 1591.202193][   T73]      netlink_unicast+0x449/0x710
[ 1591.202193][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1591.202193][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1591.202193][   T73]      ___sys_sendmsg+0xee/0x170
[ 1591.202193][   T73]      __sys_sendmsg+0xcd/0x170
[ 1591.202193][   T73]      do_syscall_64+0xc6/0x1e0
[ 1591.202193][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1591.202193][   T73] 
[ 1591.204753][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1591.204753][   T73]      netdev_get_by_index+0x5e/0x80
[ 1591.204753][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1591.204753][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1591.204753][   T73]      ip6_route_add+0x1c/0x140
[ 1591.204753][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1591.204753][   T73]      addrconf_add_dev+0xe2/0x170
[ 1591.204753][   T73]      inet6_addr_add+0x12f/0xa40
[ 1591.204753][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1591.204753][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1591.204753][   T73]      netlink_rcv_skb+0x130/0x360
[ 1591.204753][   T73]      netlink_unicast+0x449/0x710
[ 1591.204753][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1591.204753][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1591.204753][   T73]      ___sys_sendmsg+0xee/0x170
[ 1591.204753][   T73]      __sys_sendmsg+0xcd/0x170
[ 1591.204753][   T73]      do_syscall_64+0xc6/0x1e0
[ 1591.204753][   T73] 
[ 1591.207173][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1591.207173][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1591.207173][   T73]      ipv6_find_idev+0x102/0x170
[ 1591.207173][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1591.207173][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1591.207173][   T73]      netlink_rcv_skb+0x130/0x360
[ 1591.207173][   T73]      netlink_unicast+0x449/0x710
[ 1591.207173][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1591.207173][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1591.207173][   T73]      ___sys_sendmsg+0xee/0x170
[ 1591.207173][   T73]      __sys_sendmsg+0xcd/0x170
[ 1591.207173][   T73]      do_syscall_64+0xc6/0x1e0
[ 1591.207173][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1591.207173][   T73] 
[ 1591.209041][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1591.209041][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1591.209041][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1591.209041][   T73]      ipv6_find_idev+0x102/0x170
[ 1591.209041][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1591.209041][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1591.209041][   T73]      netlink_rcv_skb+0x130/0x360
[ 1591.209041][   T73]      netlink_unicast+0x449/0x710
[ 1591.209041][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1591.209041][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1591.209041][   T73]      ___sys_sendmsg+0xee/0x170
[ 1591.209041][   T73]      __sys_sendmsg+0xcd/0x170
[ 1591.209041][   T73]      do_syscall_64+0xc6/0x1e0
[ 1591.209041][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1591.209041][   T73] 
[ 1601.447740][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1601.448172][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1601.448172][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1601.448172][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1601.448172][   T73]      fib6_nh_init+0xa22/0x1580
[ 1601.448172][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1601.448172][   T73]      ip6_route_add+0x1c/0x140
[ 1601.448172][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1601.448172][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1601.448172][   T73]      netlink_rcv_skb+0x130/0x360
[ 1601.448172][   T73]      netlink_unicast+0x449/0x710
[ 1601.448172][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1601.448172][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1601.448172][   T73]      ___sys_sendmsg+0xee/0x170
[ 1601.448172][   T73]      __sys_sendmsg+0xcd/0x170
[ 1601.448172][   T73]      do_syscall_64+0xc6/0x1e0
[ 1601.448172][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1601.448172][   T73] 
[ 1601.450550][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1601.450550][   T73]      dst_init+0x84/0x4a0
[ 1601.450550][   T73]      dst_alloc+0x97/0x150
[ 1601.450550][   T73]      ip6_dst_alloc+0x23/0x90
[ 1601.450550][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1601.450550][   T73]      ip6_pol_route+0x56f/0x840
[ 1601.450550][   T73]      fib6_rule_lookup+0x456/0x630
[ 1601.450550][   T73]      ip6_route_input+0x59c/0xa50
[ 1601.450550][   T73]      ipv6_rcv+0x397/0x810
[ 1601.450550][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1601.450550][   T73]      process_backlog+0x101/0x620
[ 1601.450550][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1601.450550][   T73]      net_rx_action+0x495/0xbe0
[ 1601.450550][   T73]      __do_softirq+0x1b5/0x7f6
[ 1601.450550][   T73] 
[ 1601.452307][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1601.452307][   T73]      netdev_get_by_index+0x5e/0x80
[ 1601.452307][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1601.452307][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1601.452307][   T73]      ip6_route_add+0x1c/0x140
[ 1601.452307][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1601.452307][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1601.452307][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1601.452307][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1601.452307][   T73]      netlink_rcv_skb+0x130/0x360
[ 1601.452307][   T73]      netlink_unicast+0x449/0x710
[ 1601.452307][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1601.452307][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1601.452307][   T73]      ___sys_sendmsg+0xee/0x170
[ 1601.452307][   T73]      __sys_sendmsg+0xcd/0x170
[ 1601.452307][   T73]      do_syscall_64+0xc6/0x1e0
[ 1601.452307][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1601.452307][   T73] 
[ 1601.454415][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1601.454415][   T73]      netdev_get_by_index+0x5e/0x80
[ 1601.454415][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1601.454415][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1601.454415][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1601.454415][   T73]      ipv6_add_addr+0x411/0x2000
[ 1601.454415][   T73]      inet6_addr_add+0x30e/0xa40
[ 1601.454415][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1601.454415][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1601.454415][   T73]      netlink_rcv_skb+0x130/0x360
[ 1601.454415][   T73]      netlink_unicast+0x449/0x710
[ 1601.454415][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1601.454415][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1601.454415][   T73]      ___sys_sendmsg+0xee/0x170
[ 1601.454415][   T73]      __sys_sendmsg+0xcd/0x170
[ 1601.454415][   T73]      do_syscall_64+0xc6/0x1e0
[ 1601.454415][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1601.454415][   T73] 
[ 1601.456522][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1601.456522][   T73]      netdev_get_by_index+0x5e/0x80
[ 1601.456522][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1601.456522][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1601.456522][   T73]      ip6_route_add+0x1c/0x140
[ 1601.456522][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1601.456522][   T73]      addrconf_add_dev+0xe2/0x170
[ 1601.456522][   T73]      inet6_addr_add+0x12f/0xa40
[ 1601.456522][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1601.456522][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1601.456522][   T73]      netlink_rcv_skb+0x130/0x360
[ 1601.456522][   T73]      netlink_unicast+0x449/0x710
[ 1601.456522][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1601.456522][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1601.456522][   T73]      ___sys_sendmsg+0xee/0x170
[ 1601.456522][   T73]      __sys_sendmsg+0xcd/0x170
[ 1601.456522][   T73]      do_syscall_64+0xc6/0x1e0
[ 1601.456522][   T73] 
[ 1601.458603][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1601.458603][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1601.458603][   T73]      ipv6_find_idev+0x102/0x170
[ 1601.458603][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1601.458603][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1601.458603][   T73]      netlink_rcv_skb+0x130/0x360
[ 1601.458603][   T73]      netlink_unicast+0x449/0x710
[ 1601.458603][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1601.458603][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1601.458603][   T73]      ___sys_sendmsg+0xee/0x170
[ 1601.458603][   T73]      __sys_sendmsg+0xcd/0x170
[ 1601.458603][   T73]      do_syscall_64+0xc6/0x1e0
[ 1601.458603][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1601.458603][   T73] 
[ 1601.460215][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1601.460215][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1601.460215][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1601.460215][   T73]      ipv6_find_idev+0x102/0x170
[ 1601.460215][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1601.460215][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1601.460215][   T73]      netlink_rcv_skb+0x130/0x360
[ 1601.460215][   T73]      netlink_unicast+0x449/0x710
[ 1601.460215][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1601.460215][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1601.460215][   T73]      ___sys_sendmsg+0xee/0x170
[ 1601.460215][   T73]      __sys_sendmsg+0xcd/0x170
[ 1601.460215][   T73]      do_syscall_64+0xc6/0x1e0
[ 1601.460215][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1601.460215][   T73] 
[ 1601.462004][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1601.462298][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1601.462298][   T73]      netdev_get_by_index+0x5e/0x80
[ 1601.462298][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1601.462298][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1601.462298][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1601.462298][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1601.462298][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1601.462298][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1601.462298][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1601.462298][   T73]      addrconf_dad_begin+0x310/0x670
[ 1601.462298][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1601.462298][   T73]      process_one_work+0x84d/0x18a0
[ 1601.462298][   T73]      worker_thread+0x587/0xd30
[ 1601.462298][   T73]      kthread+0x28a/0x350
[ 1601.462298][   T73]      ret_from_fork+0x31/0x70
[ 1601.462298][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1601.462298][   T73] 
[ 1601.464356][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1601.464356][   T73]      netdev_get_by_index+0x5e/0x80
[ 1601.464356][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1601.464356][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1601.464356][   T73]      ip6_route_add+0x1c/0x140
[ 1601.464356][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1601.464356][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1601.464356][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1601.464356][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1601.464356][   T73]      netlink_rcv_skb+0x130/0x360
[ 1601.464356][   T73]      netlink_unicast+0x449/0x710
[ 1601.464356][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1601.464356][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1601.464356][   T73]      ___sys_sendmsg+0xee/0x170
[ 1601.464356][   T73]      __sys_sendmsg+0xcd/0x170
[ 1601.464356][   T73]      do_syscall_64+0xc6/0x1e0
[ 1601.464356][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1601.464356][   T73] 
[ 1601.466459][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1601.466459][   T73]      netdev_get_by_index+0x5e/0x80
[ 1601.466459][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1601.466459][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1601.466459][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1601.466459][   T73]      ipv6_add_addr+0x411/0x2000
[ 1601.466459][   T73]      inet6_addr_add+0x30e/0xa40
[ 1601.466459][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1601.466459][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1601.466459][   T73]      netlink_rcv_skb+0x130/0x360
[ 1601.466459][   T73]      netlink_unicast+0x449/0x710
[ 1601.466459][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1601.466459][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1601.466459][   T73]      ___sys_sendmsg+0xee/0x170
[ 1601.466459][   T73]      __sys_sendmsg+0xcd/0x170
[ 1601.466459][   T73]      do_syscall_64+0xc6/0x1e0
[ 1601.466459][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1601.466459][   T73] 
[ 1601.468569][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1601.468569][   T73]      netdev_get_by_index+0x5e/0x80
[ 1601.468569][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1601.468569][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1601.468569][   T73]      ip6_route_add+0x1c/0x140
[ 1601.468569][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1601.468569][   T73]      addrconf_add_dev+0xe2/0x170
[ 1601.468569][   T73]      inet6_addr_add+0x12f/0xa40
[ 1601.468569][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1601.468569][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1601.468569][   T73]      netlink_rcv_skb+0x130/0x360
[ 1601.468569][   T73]      netlink_unicast+0x449/0x710
[ 1601.468569][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1601.468569][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1601.468569][   T73]      ___sys_sendmsg+0xee/0x170
[ 1601.468569][   T73]      __sys_sendmsg+0xcd/0x170
[ 1601.468569][   T73]      do_syscall_64+0xc6/0x1e0
[ 1601.468569][   T73] 
[ 1601.470643][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1601.470643][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1601.470643][   T73]      ipv6_find_idev+0x102/0x170
[ 1601.470643][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1601.470643][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1601.470643][   T73]      netlink_rcv_skb+0x130/0x360
[ 1601.470643][   T73]      netlink_unicast+0x449/0x710
[ 1601.470643][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1601.470643][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1601.470643][   T73]      ___sys_sendmsg+0xee/0x170
[ 1601.470643][   T73]      __sys_sendmsg+0xcd/0x170
[ 1601.470643][   T73]      do_syscall_64+0xc6/0x1e0
[ 1601.470643][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1601.470643][   T73] 
[ 1601.472294][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1601.472294][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1601.472294][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1601.472294][   T73]      ipv6_find_idev+0x102/0x170
[ 1601.472294][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1601.472294][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1601.472294][   T73]      netlink_rcv_skb+0x130/0x360
[ 1601.472294][   T73]      netlink_unicast+0x449/0x710
[ 1601.472294][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1601.472294][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1601.472294][   T73]      ___sys_sendmsg+0xee/0x170
[ 1601.472294][   T73]      __sys_sendmsg+0xcd/0x170
[ 1601.472294][   T73]      do_syscall_64+0xc6/0x1e0
[ 1601.472294][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1601.472294][   T73] 
[ 1601.474092][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1601.474380][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1601.474380][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1601.474380][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1601.474380][   T73]      fib6_nh_init+0xa22/0x1580
[ 1601.474380][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1601.474380][   T73]      ip6_route_add+0x1c/0x140
[ 1601.474380][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1601.474380][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1601.474380][   T73]      netlink_rcv_skb+0x130/0x360
[ 1601.474380][   T73]      netlink_unicast+0x449/0x710
[ 1601.474380][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1601.474380][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1601.474380][   T73]      ___sys_sendmsg+0xee/0x170
[ 1601.474380][   T73]      __sys_sendmsg+0xcd/0x170
[ 1601.474380][   T73]      do_syscall_64+0xc6/0x1e0
[ 1601.474380][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1601.474380][   T73] 
[ 1601.476496][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1601.476496][   T73]      dst_init+0x84/0x4a0
[ 1601.476496][   T73]      dst_alloc+0x97/0x150
[ 1601.476496][   T73]      ip6_dst_alloc+0x23/0x90
[ 1601.476496][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1601.476496][   T73]      ip6_pol_route+0x56f/0x840
[ 1601.476496][   T73]      fib6_rule_lookup+0x456/0x630
[ 1601.476496][   T73]      ip6_route_input+0x59c/0xa50
[ 1601.476496][   T73]      ipv6_rcv+0x397/0x810
[ 1601.476496][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1601.476496][   T73]      process_backlog+0x101/0x620
[ 1601.476496][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1601.476496][   T73]      net_rx_action+0x495/0xbe0
[ 1601.476496][   T73]      __do_softirq+0x1b5/0x7f6
[ 1601.476496][   T73] 
[ 1601.478489][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1601.478489][   T73]      netdev_get_by_index+0x5e/0x80
[ 1601.478489][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1601.478489][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1601.478489][   T73]      ip6_route_add+0x1c/0x140
[ 1601.478489][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1601.478489][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1601.478489][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1601.478489][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1601.478489][   T73]      netlink_rcv_skb+0x130/0x360
[ 1601.478489][   T73]      netlink_unicast+0x449/0x710
[ 1601.478489][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1601.478489][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1601.478489][   T73]      ___sys_sendmsg+0xee/0x170
[ 1601.478489][   T73]      __sys_sendmsg+0xcd/0x170
[ 1601.478489][   T73]      do_syscall_64+0xc6/0x1e0
[ 1601.478489][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1601.478489][   T73] 
[ 1601.480893][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1601.480893][   T73]      netdev_get_by_index+0x5e/0x80
[ 1601.480893][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1601.480893][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1601.480893][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1601.480893][   T73]      ipv6_add_addr+0x411/0x2000
[ 1601.480893][   T73]      inet6_addr_add+0x30e/0xa40
[ 1601.480893][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1601.480893][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1601.480893][   T73]      netlink_rcv_skb+0x130/0x360
[ 1601.480893][   T73]      netlink_unicast+0x449/0x710
[ 1601.480893][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1601.480893][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1601.480893][   T73]      ___sys_sendmsg+0xee/0x170
[ 1601.480893][   T73]      __sys_sendmsg+0xcd/0x170
[ 1601.480893][   T73]      do_syscall_64+0xc6/0x1e0
[ 1601.480893][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1601.480893][   T73] 
[ 1601.483225][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1601.483225][   T73]      netdev_get_by_index+0x5e/0x80
[ 1601.483225][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1601.483225][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1601.483225][   T73]      ip6_route_add+0x1c/0x140
[ 1601.483225][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1601.483225][   T73]      addrconf_add_dev+0xe2/0x170
[ 1601.483225][   T73]      inet6_addr_add+0x12f/0xa40
[ 1601.483225][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1601.483225][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1601.483225][   T73]      netlink_rcv_skb+0x130/0x360
[ 1601.483225][   T73]      netlink_unicast+0x449/0x710
[ 1601.483225][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1601.483225][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1601.483225][   T73]      ___sys_sendmsg+0xee/0x170
[ 1601.483225][   T73]      __sys_sendmsg+0xcd/0x170
[ 1601.483225][   T73]      do_syscall_64+0xc6/0x1e0
[ 1601.483225][   T73] 
[ 1601.485465][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1601.485465][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1601.485465][   T73]      ipv6_find_idev+0x102/0x170
[ 1601.485465][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1601.485465][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1601.485465][   T73]      netlink_rcv_skb+0x130/0x360
[ 1601.485465][   T73]      netlink_unicast+0x449/0x710
[ 1601.485465][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1601.485465][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1601.485465][   T73]      ___sys_sendmsg+0xee/0x170
[ 1601.485465][   T73]      __sys_sendmsg+0xcd/0x170
[ 1601.485465][   T73]      do_syscall_64+0xc6/0x1e0
[ 1601.485465][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1601.485465][   T73] 
[ 1601.487264][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1601.487264][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1601.487264][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1601.487264][   T73]      ipv6_find_idev+0x102/0x170
[ 1601.487264][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1601.487264][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1601.487264][   T73]      netlink_rcv_skb+0x130/0x360
[ 1601.487264][   T73]      netlink_unicast+0x449/0x710
[ 1601.487264][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1601.487264][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1601.487264][   T73]      ___sys_sendmsg+0xee/0x170
[ 1601.487264][   T73]      __sys_sendmsg+0xcd/0x170
[ 1601.487264][   T73]      do_syscall_64+0xc6/0x1e0
[ 1601.487264][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1601.487264][   T73] 
[ 1601.489223][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1601.489509][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1601.489509][   T73]      netdev_get_by_index+0x5e/0x80
[ 1601.489509][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1601.489509][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1601.489509][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1601.489509][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1601.489509][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1601.489509][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1601.489509][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1601.489509][   T73]      addrconf_dad_begin+0x310/0x670
[ 1601.489509][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1601.489509][   T73]      process_one_work+0x84d/0x18a0
[ 1601.489509][   T73]      worker_thread+0x587/0xd30
[ 1601.489509][   T73]      kthread+0x28a/0x350
[ 1601.489509][   T73]      ret_from_fork+0x31/0x70
[ 1601.489509][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1601.489509][   T73] 
[ 1601.491791][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1601.491791][   T73]      netdev_get_by_index+0x5e/0x80
[ 1601.491791][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1601.491791][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1601.491791][   T73]      ip6_route_add+0x1c/0x140
[ 1601.491791][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1601.491791][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1601.491791][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1601.491791][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1601.491791][   T73]      netlink_rcv_skb+0x130/0x360
[ 1601.491791][   T73]      netlink_unicast+0x449/0x710
[ 1601.491791][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1601.491791][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1601.491791][   T73]      ___sys_sendmsg+0xee/0x170
[ 1601.491791][   T73]      __sys_sendmsg+0xcd/0x170
[ 1601.491791][   T73]      do_syscall_64+0xc6/0x1e0
[ 1601.491791][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1601.491791][   T73] 
[ 1601.494033][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1601.494033][   T73]      netdev_get_by_index+0x5e/0x80
[ 1601.494033][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1601.494033][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1601.494033][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1601.494033][   T73]      ipv6_add_addr+0x411/0x2000
[ 1601.494033][   T73]      inet6_addr_add+0x30e/0xa40
[ 1601.494033][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1601.494033][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1601.494033][   T73]      netlink_rcv_skb+0x130/0x360
[ 1601.494033][   T73]      netlink_unicast+0x449/0x710
[ 1601.494033][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1601.494033][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1601.494033][   T73]      ___sys_sendmsg+0xee/0x170
[ 1601.494033][   T73]      __sys_sendmsg+0xcd/0x170
[ 1601.494033][   T73]      do_syscall_64+0xc6/0x1e0
[ 1601.494033][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1601.494033][   T73] 
[ 1601.496276][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1601.496276][   T73]      netdev_get_by_index+0x5e/0x80
[ 1601.496276][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1601.496276][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1601.496276][   T73]      ip6_route_add+0x1c/0x140
[ 1601.496276][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1601.496276][   T73]      addrconf_add_dev+0xe2/0x170
[ 1601.496276][   T73]      inet6_addr_add+0x12f/0xa40
[ 1601.496276][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1601.496276][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1601.496276][   T73]      netlink_rcv_skb+0x130/0x360
[ 1601.496276][   T73]      netlink_unicast+0x449/0x710
[ 1601.496276][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1601.496276][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1601.496276][   T73]      ___sys_sendmsg+0xee/0x170
[ 1601.496276][   T73]      __sys_sendmsg+0xcd/0x170
[ 1601.496276][   T73]      do_syscall_64+0xc6/0x1e0
[ 1601.496276][   T73] 
[ 1601.498494][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1601.498494][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1601.498494][   T73]      ipv6_find_idev+0x102/0x170
[ 1601.498494][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1601.498494][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1601.498494][   T73]      netlink_rcv_skb+0x130/0x360
[ 1601.498494][   T73]      netlink_unicast+0x449/0x710
[ 1601.498494][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1601.498494][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1601.498494][   T73]      ___sys_sendmsg+0xee/0x170
[ 1601.498494][   T73]      __sys_sendmsg+0xcd/0x170
[ 1601.498494][   T73]      do_syscall_64+0xc6/0x1e0
[ 1601.498494][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1601.498494][   T73] 
[ 1601.500272][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1601.500272][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1601.500272][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1601.500272][   T73]      ipv6_find_idev+0x102/0x170
[ 1601.500272][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1601.500272][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1601.500272][   T73]      netlink_rcv_skb+0x130/0x360
[ 1601.500272][   T73]      netlink_unicast+0x449/0x710
[ 1601.500272][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1601.500272][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1601.500272][   T73]      ___sys_sendmsg+0xee/0x170
[ 1601.500272][   T73]      __sys_sendmsg+0xcd/0x170
[ 1601.500272][   T73]      do_syscall_64+0xc6/0x1e0
[ 1601.500272][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1601.500272][   T73] 
[ 1611.527732][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1611.528207][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1611.528207][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1611.528207][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1611.528207][   T73]      fib6_nh_init+0xa22/0x1580
[ 1611.528207][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1611.528207][   T73]      ip6_route_add+0x1c/0x140
[ 1611.528207][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1611.528207][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1611.528207][   T73]      netlink_rcv_skb+0x130/0x360
[ 1611.528207][   T73]      netlink_unicast+0x449/0x710
[ 1611.528207][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1611.528207][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1611.528207][   T73]      ___sys_sendmsg+0xee/0x170
[ 1611.528207][   T73]      __sys_sendmsg+0xcd/0x170
[ 1611.528207][   T73]      do_syscall_64+0xc6/0x1e0
[ 1611.528207][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1611.528207][   T73] 
[ 1611.530179][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1611.530179][   T73]      dst_init+0x84/0x4a0
[ 1611.530179][   T73]      dst_alloc+0x97/0x150
[ 1611.530179][   T73]      ip6_dst_alloc+0x23/0x90
[ 1611.530179][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1611.530179][   T73]      ip6_pol_route+0x56f/0x840
[ 1611.530179][   T73]      fib6_rule_lookup+0x456/0x630
[ 1611.530179][   T73]      ip6_route_input+0x59c/0xa50
[ 1611.530179][   T73]      ipv6_rcv+0x397/0x810
[ 1611.530179][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1611.530179][   T73]      process_backlog+0x101/0x620
[ 1611.530179][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1611.530179][   T73]      net_rx_action+0x495/0xbe0
[ 1611.530179][   T73]      __do_softirq+0x1b5/0x7f6
[ 1611.530179][   T73] 
[ 1611.531891][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1611.531891][   T73]      netdev_get_by_index+0x5e/0x80
[ 1611.531891][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1611.531891][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1611.531891][   T73]      ip6_route_add+0x1c/0x140
[ 1611.531891][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1611.531891][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1611.531891][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1611.531891][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1611.531891][   T73]      netlink_rcv_skb+0x130/0x360
[ 1611.531891][   T73]      netlink_unicast+0x449/0x710
[ 1611.531891][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1611.531891][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1611.531891][   T73]      ___sys_sendmsg+0xee/0x170
[ 1611.531891][   T73]      __sys_sendmsg+0xcd/0x170
[ 1611.531891][   T73]      do_syscall_64+0xc6/0x1e0
[ 1611.531891][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1611.531891][   T73] 
[ 1611.533995][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1611.533995][   T73]      netdev_get_by_index+0x5e/0x80
[ 1611.533995][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1611.533995][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1611.533995][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1611.533995][   T73]      ipv6_add_addr+0x411/0x2000
[ 1611.533995][   T73]      inet6_addr_add+0x30e/0xa40
[ 1611.533995][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1611.533995][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1611.533995][   T73]      netlink_rcv_skb+0x130/0x360
[ 1611.533995][   T73]      netlink_unicast+0x449/0x710
[ 1611.533995][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1611.533995][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1611.533995][   T73]      ___sys_sendmsg+0xee/0x170
[ 1611.533995][   T73]      __sys_sendmsg+0xcd/0x170
[ 1611.533995][   T73]      do_syscall_64+0xc6/0x1e0
[ 1611.533995][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1611.533995][   T73] 
[ 1611.536189][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1611.536189][   T73]      netdev_get_by_index+0x5e/0x80
[ 1611.536189][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1611.536189][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1611.536189][   T73]      ip6_route_add+0x1c/0x140
[ 1611.536189][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1611.536189][   T73]      addrconf_add_dev+0xe2/0x170
[ 1611.536189][   T73]      inet6_addr_add+0x12f/0xa40
[ 1611.536189][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1611.536189][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1611.536189][   T73]      netlink_rcv_skb+0x130/0x360
[ 1611.536189][   T73]      netlink_unicast+0x449/0x710
[ 1611.536189][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1611.536189][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1611.536189][   T73]      ___sys_sendmsg+0xee/0x170
[ 1611.536189][   T73]      __sys_sendmsg+0xcd/0x170
[ 1611.536189][   T73]      do_syscall_64+0xc6/0x1e0
[ 1611.536189][   T73] 
[ 1611.538153][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1611.538153][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1611.538153][   T73]      ipv6_find_idev+0x102/0x170
[ 1611.538153][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1611.538153][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1611.538153][   T73]      netlink_rcv_skb+0x130/0x360
[ 1611.538153][   T73]      netlink_unicast+0x449/0x710
[ 1611.538153][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1611.538153][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1611.538153][   T73]      ___sys_sendmsg+0xee/0x170
[ 1611.538153][   T73]      __sys_sendmsg+0xcd/0x170
[ 1611.538153][   T73]      do_syscall_64+0xc6/0x1e0
[ 1611.538153][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1611.538153][   T73] 
[ 1611.539689][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1611.539689][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1611.539689][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1611.539689][   T73]      ipv6_find_idev+0x102/0x170
[ 1611.539689][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1611.539689][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1611.539689][   T73]      netlink_rcv_skb+0x130/0x360
[ 1611.539689][   T73]      netlink_unicast+0x449/0x710
[ 1611.539689][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1611.539689][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1611.539689][   T73]      ___sys_sendmsg+0xee/0x170
[ 1611.539689][   T73]      __sys_sendmsg+0xcd/0x170
[ 1611.539689][   T73]      do_syscall_64+0xc6/0x1e0
[ 1611.539689][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1611.539689][   T73] 
[ 1611.541385][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1611.541719][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1611.541719][   T73]      netdev_get_by_index+0x5e/0x80
[ 1611.541719][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1611.541719][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1611.541719][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1611.541719][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1611.541719][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1611.541719][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1611.541719][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1611.541719][   T73]      addrconf_dad_begin+0x310/0x670
[ 1611.541719][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1611.541719][   T73]      process_one_work+0x84d/0x18a0
[ 1611.541719][   T73]      worker_thread+0x587/0xd30
[ 1611.541719][   T73]      kthread+0x28a/0x350
[ 1611.541719][   T73]      ret_from_fork+0x31/0x70
[ 1611.541719][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1611.541719][   T73] 
[ 1611.543722][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1611.543722][   T73]      netdev_get_by_index+0x5e/0x80
[ 1611.543722][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1611.543722][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1611.543722][   T73]      ip6_route_add+0x1c/0x140
[ 1611.543722][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1611.543722][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1611.543722][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1611.543722][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1611.543722][   T73]      netlink_rcv_skb+0x130/0x360
[ 1611.543722][   T73]      netlink_unicast+0x449/0x710
[ 1611.543722][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1611.543722][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1611.543722][   T73]      ___sys_sendmsg+0xee/0x170
[ 1611.543722][   T73]      __sys_sendmsg+0xcd/0x170
[ 1611.543722][   T73]      do_syscall_64+0xc6/0x1e0
[ 1611.543722][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1611.543722][   T73] 
[ 1611.545816][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1611.545816][   T73]      netdev_get_by_index+0x5e/0x80
[ 1611.545816][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1611.545816][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1611.545816][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1611.545816][   T73]      ipv6_add_addr+0x411/0x2000
[ 1611.545816][   T73]      inet6_addr_add+0x30e/0xa40
[ 1611.545816][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1611.545816][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1611.545816][   T73]      netlink_rcv_skb+0x130/0x360
[ 1611.545816][   T73]      netlink_unicast+0x449/0x710
[ 1611.545816][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1611.545816][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1611.545816][   T73]      ___sys_sendmsg+0xee/0x170
[ 1611.545816][   T73]      __sys_sendmsg+0xcd/0x170
[ 1611.545816][   T73]      do_syscall_64+0xc6/0x1e0
[ 1611.545816][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1611.545816][   T73] 
[ 1611.547877][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1611.547877][   T73]      netdev_get_by_index+0x5e/0x80
[ 1611.547877][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1611.547877][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1611.547877][   T73]      ip6_route_add+0x1c/0x140
[ 1611.547877][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1611.547877][   T73]      addrconf_add_dev+0xe2/0x170
[ 1611.547877][   T73]      inet6_addr_add+0x12f/0xa40
[ 1611.547877][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1611.547877][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1611.547877][   T73]      netlink_rcv_skb+0x130/0x360
[ 1611.547877][   T73]      netlink_unicast+0x449/0x710
[ 1611.547877][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1611.547877][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1611.547877][   T73]      ___sys_sendmsg+0xee/0x170
[ 1611.547877][   T73]      __sys_sendmsg+0xcd/0x170
[ 1611.547877][   T73]      do_syscall_64+0xc6/0x1e0
[ 1611.547877][   T73] 
[ 1611.549830][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1611.549830][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1611.549830][   T73]      ipv6_find_idev+0x102/0x170
[ 1611.549830][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1611.549830][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1611.549830][   T73]      netlink_rcv_skb+0x130/0x360
[ 1611.549830][   T73]      netlink_unicast+0x449/0x710
[ 1611.549830][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1611.549830][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1611.549830][   T73]      ___sys_sendmsg+0xee/0x170
[ 1611.549830][   T73]      __sys_sendmsg+0xcd/0x170
[ 1611.549830][   T73]      do_syscall_64+0xc6/0x1e0
[ 1611.549830][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1611.549830][   T73] 
[ 1611.551367][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1611.551367][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1611.551367][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1611.551367][   T73]      ipv6_find_idev+0x102/0x170
[ 1611.551367][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1611.551367][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1611.551367][   T73]      netlink_rcv_skb+0x130/0x360
[ 1611.551367][   T73]      netlink_unicast+0x449/0x710
[ 1611.551367][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1611.551367][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1611.551367][   T73]      ___sys_sendmsg+0xee/0x170
[ 1611.551367][   T73]      __sys_sendmsg+0xcd/0x170
[ 1611.551367][   T73]      do_syscall_64+0xc6/0x1e0
[ 1611.551367][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1611.551367][   T73] 
[ 1611.553058][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1611.553359][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1611.553359][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1611.553359][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1611.553359][   T73]      fib6_nh_init+0xa22/0x1580
[ 1611.553359][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1611.553359][   T73]      ip6_route_add+0x1c/0x140
[ 1611.553359][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1611.553359][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1611.553359][   T73]      netlink_rcv_skb+0x130/0x360
[ 1611.553359][   T73]      netlink_unicast+0x449/0x710
[ 1611.553359][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1611.553359][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1611.553359][   T73]      ___sys_sendmsg+0xee/0x170
[ 1611.553359][   T73]      __sys_sendmsg+0xcd/0x170
[ 1611.553359][   T73]      do_syscall_64+0xc6/0x1e0
[ 1611.553359][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1611.553359][   T73] 
[ 1611.555507][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1611.555507][   T73]      dst_init+0x84/0x4a0
[ 1611.555507][   T73]      dst_alloc+0x97/0x150
[ 1611.555507][   T73]      ip6_dst_alloc+0x23/0x90
[ 1611.555507][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1611.555507][   T73]      ip6_pol_route+0x56f/0x840
[ 1611.555507][   T73]      fib6_rule_lookup+0x456/0x630
[ 1611.555507][   T73]      ip6_route_input+0x59c/0xa50
[ 1611.555507][   T73]      ipv6_rcv+0x397/0x810
[ 1611.555507][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1611.555507][   T73]      process_backlog+0x101/0x620
[ 1611.555507][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1611.555507][   T73]      net_rx_action+0x495/0xbe0
[ 1611.555507][   T73]      __do_softirq+0x1b5/0x7f6
[ 1611.555507][   T73] 
[ 1611.557385][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1611.557385][   T73]      netdev_get_by_index+0x5e/0x80
[ 1611.557385][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1611.557385][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1611.557385][   T73]      ip6_route_add+0x1c/0x140
[ 1611.557385][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1611.557385][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1611.557385][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1611.557385][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1611.557385][   T73]      netlink_rcv_skb+0x130/0x360
[ 1611.557385][   T73]      netlink_unicast+0x449/0x710
[ 1611.557385][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1611.557385][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1611.557385][   T73]      ___sys_sendmsg+0xee/0x170
[ 1611.557385][   T73]      __sys_sendmsg+0xcd/0x170
[ 1611.557385][   T73]      do_syscall_64+0xc6/0x1e0
[ 1611.557385][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1611.557385][   T73] 
[ 1611.559571][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1611.559571][   T73]      netdev_get_by_index+0x5e/0x80
[ 1611.559571][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1611.559571][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1611.559571][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1611.559571][   T73]      ipv6_add_addr+0x411/0x2000
[ 1611.559571][   T73]      inet6_addr_add+0x30e/0xa40
[ 1611.559571][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1611.559571][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1611.559571][   T73]      netlink_rcv_skb+0x130/0x360
[ 1611.559571][   T73]      netlink_unicast+0x449/0x710
[ 1611.559571][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1611.559571][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1611.559571][   T73]      ___sys_sendmsg+0xee/0x170
[ 1611.559571][   T73]      __sys_sendmsg+0xcd/0x170
[ 1611.559571][   T73]      do_syscall_64+0xc6/0x1e0
[ 1611.559571][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1611.559571][   T73] 
[ 1611.561897][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1611.561897][   T73]      netdev_get_by_index+0x5e/0x80
[ 1611.561897][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1611.561897][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1611.561897][   T73]      ip6_route_add+0x1c/0x140
[ 1611.561897][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1611.561897][   T73]      addrconf_add_dev+0xe2/0x170
[ 1611.561897][   T73]      inet6_addr_add+0x12f/0xa40
[ 1611.561897][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1611.561897][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1611.561897][   T73]      netlink_rcv_skb+0x130/0x360
[ 1611.561897][   T73]      netlink_unicast+0x449/0x710
[ 1611.561897][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1611.561897][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1611.561897][   T73]      ___sys_sendmsg+0xee/0x170
[ 1611.561897][   T73]      __sys_sendmsg+0xcd/0x170
[ 1611.561897][   T73]      do_syscall_64+0xc6/0x1e0
[ 1611.561897][   T73] 
[ 1611.564194][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1611.564194][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1611.564194][   T73]      ipv6_find_idev+0x102/0x170
[ 1611.564194][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1611.564194][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1611.564194][   T73]      netlink_rcv_skb+0x130/0x360
[ 1611.564194][   T73]      netlink_unicast+0x449/0x710
[ 1611.564194][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1611.564194][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1611.564194][   T73]      ___sys_sendmsg+0xee/0x170
[ 1611.564194][   T73]      __sys_sendmsg+0xcd/0x170
[ 1611.564194][   T73]      do_syscall_64+0xc6/0x1e0
[ 1611.564194][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1611.564194][   T73] 
[ 1611.566052][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1611.566052][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1611.566052][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1611.566052][   T73]      ipv6_find_idev+0x102/0x170
[ 1611.566052][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1611.566052][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1611.566052][   T73]      netlink_rcv_skb+0x130/0x360
[ 1611.566052][   T73]      netlink_unicast+0x449/0x710
[ 1611.566052][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1611.566052][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1611.566052][   T73]      ___sys_sendmsg+0xee/0x170
[ 1611.566052][   T73]      __sys_sendmsg+0xcd/0x170
[ 1611.566052][   T73]      do_syscall_64+0xc6/0x1e0
[ 1611.566052][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1611.566052][   T73] 
[ 1611.568010][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1611.568355][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1611.568355][   T73]      netdev_get_by_index+0x5e/0x80
[ 1611.568355][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1611.568355][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1611.568355][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1611.568355][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1611.568355][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1611.568355][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1611.568355][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1611.568355][   T73]      addrconf_dad_begin+0x310/0x670
[ 1611.568355][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1611.568355][   T73]      process_one_work+0x84d/0x18a0
[ 1611.568355][   T73]      worker_thread+0x587/0xd30
[ 1611.568355][   T73]      kthread+0x28a/0x350
[ 1611.568355][   T73]      ret_from_fork+0x31/0x70
[ 1611.568355][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1611.568355][   T73] 
[ 1611.570534][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1611.570534][   T73]      netdev_get_by_index+0x5e/0x80
[ 1611.570534][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1611.570534][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1611.570534][   T73]      ip6_route_add+0x1c/0x140
[ 1611.570534][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1611.570534][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1611.570534][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1611.570534][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1611.570534][   T73]      netlink_rcv_skb+0x130/0x360
[ 1611.570534][   T73]      netlink_unicast+0x449/0x710
[ 1611.570534][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1611.570534][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1611.570534][   T73]      ___sys_sendmsg+0xee/0x170
[ 1611.570534][   T73]      __sys_sendmsg+0xcd/0x170
[ 1611.570534][   T73]      do_syscall_64+0xc6/0x1e0
[ 1611.570534][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1611.570534][   T73] 
[ 1611.572883][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1611.572883][   T73]      netdev_get_by_index+0x5e/0x80
[ 1611.572883][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1611.572883][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1611.572883][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1611.572883][   T73]      ipv6_add_addr+0x411/0x2000
[ 1611.572883][   T73]      inet6_addr_add+0x30e/0xa40
[ 1611.572883][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1611.572883][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1611.572883][   T73]      netlink_rcv_skb+0x130/0x360
[ 1611.572883][   T73]      netlink_unicast+0x449/0x710
[ 1611.572883][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1611.572883][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1611.572883][   T73]      ___sys_sendmsg+0xee/0x170
[ 1611.572883][   T73]      __sys_sendmsg+0xcd/0x170
[ 1611.572883][   T73]      do_syscall_64+0xc6/0x1e0
[ 1611.572883][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1611.572883][   T73] 
[ 1611.575291][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1611.575291][   T73]      netdev_get_by_index+0x5e/0x80
[ 1611.575291][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1611.575291][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1611.575291][   T73]      ip6_route_add+0x1c/0x140
[ 1611.575291][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1611.575291][   T73]      addrconf_add_dev+0xe2/0x170
[ 1611.575291][   T73]      inet6_addr_add+0x12f/0xa40
[ 1611.575291][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1611.575291][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1611.575291][   T73]      netlink_rcv_skb+0x130/0x360
[ 1611.575291][   T73]      netlink_unicast+0x449/0x710
[ 1611.575291][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1611.575291][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1611.575291][   T73]      ___sys_sendmsg+0xee/0x170
[ 1611.575291][   T73]      __sys_sendmsg+0xcd/0x170
[ 1611.575291][   T73]      do_syscall_64+0xc6/0x1e0
[ 1611.575291][   T73] 
[ 1611.577590][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1611.577590][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1611.577590][   T73]      ipv6_find_idev+0x102/0x170
[ 1611.577590][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1611.577590][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1611.577590][   T73]      netlink_rcv_skb+0x130/0x360
[ 1611.577590][   T73]      netlink_unicast+0x449/0x710
[ 1611.577590][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1611.577590][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1611.577590][   T73]      ___sys_sendmsg+0xee/0x170
[ 1611.577590][   T73]      __sys_sendmsg+0xcd/0x170
[ 1611.577590][   T73]      do_syscall_64+0xc6/0x1e0
[ 1611.577590][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1611.577590][   T73] 
[ 1611.579387][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1611.579387][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1611.579387][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1611.579387][   T73]      ipv6_find_idev+0x102/0x170
[ 1611.579387][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1611.579387][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1611.579387][   T73]      netlink_rcv_skb+0x130/0x360
[ 1611.579387][   T73]      netlink_unicast+0x449/0x710
[ 1611.579387][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1611.579387][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1611.579387][   T73]      ___sys_sendmsg+0xee/0x170
[ 1611.579387][   T73]      __sys_sendmsg+0xcd/0x170
[ 1611.579387][   T73]      do_syscall_64+0xc6/0x1e0
[ 1611.579387][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1611.579387][   T73] 
[ 1621.631747][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1621.632173][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1621.632173][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1621.632173][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1621.632173][   T73]      fib6_nh_init+0xa22/0x1580
[ 1621.632173][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1621.632173][   T73]      ip6_route_add+0x1c/0x140
[ 1621.632173][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1621.632173][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1621.632173][   T73]      netlink_rcv_skb+0x130/0x360
[ 1621.632173][   T73]      netlink_unicast+0x449/0x710
[ 1621.632173][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1621.632173][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1621.632173][   T73]      ___sys_sendmsg+0xee/0x170
[ 1621.632173][   T73]      __sys_sendmsg+0xcd/0x170
[ 1621.632173][   T73]      do_syscall_64+0xc6/0x1e0
[ 1621.632173][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1621.632173][   T73] 
[ 1621.634262][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1621.634262][   T73]      dst_init+0x84/0x4a0
[ 1621.634262][   T73]      dst_alloc+0x97/0x150
[ 1621.634262][   T73]      ip6_dst_alloc+0x23/0x90
[ 1621.634262][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1621.634262][   T73]      ip6_pol_route+0x56f/0x840
[ 1621.634262][   T73]      fib6_rule_lookup+0x456/0x630
[ 1621.634262][   T73]      ip6_route_input+0x59c/0xa50
[ 1621.634262][   T73]      ipv6_rcv+0x397/0x810
[ 1621.634262][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1621.634262][   T73]      process_backlog+0x101/0x620
[ 1621.634262][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1621.634262][   T73]      net_rx_action+0x495/0xbe0
[ 1621.634262][   T73]      __do_softirq+0x1b5/0x7f6
[ 1621.634262][   T73] 
[ 1621.636046][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1621.636046][   T73]      netdev_get_by_index+0x5e/0x80
[ 1621.636046][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1621.636046][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1621.636046][   T73]      ip6_route_add+0x1c/0x140
[ 1621.636046][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1621.636046][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1621.636046][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1621.636046][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1621.636046][   T73]      netlink_rcv_skb+0x130/0x360
[ 1621.636046][   T73]      netlink_unicast+0x449/0x710
[ 1621.636046][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1621.636046][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1621.636046][   T73]      ___sys_sendmsg+0xee/0x170
[ 1621.636046][   T73]      __sys_sendmsg+0xcd/0x170
[ 1621.636046][   T73]      do_syscall_64+0xc6/0x1e0
[ 1621.636046][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1621.636046][   T73] 
[ 1621.638238][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1621.638238][   T73]      netdev_get_by_index+0x5e/0x80
[ 1621.638238][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1621.638238][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1621.638238][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1621.638238][   T73]      ipv6_add_addr+0x411/0x2000
[ 1621.638238][   T73]      inet6_addr_add+0x30e/0xa40
[ 1621.638238][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1621.638238][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1621.638238][   T73]      netlink_rcv_skb+0x130/0x360
[ 1621.638238][   T73]      netlink_unicast+0x449/0x710
[ 1621.638238][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1621.638238][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1621.638238][   T73]      ___sys_sendmsg+0xee/0x170
[ 1621.638238][   T73]      __sys_sendmsg+0xcd/0x170
[ 1621.638238][   T73]      do_syscall_64+0xc6/0x1e0
[ 1621.638238][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1621.638238][   T73] 
[ 1621.640419][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1621.640419][   T73]      netdev_get_by_index+0x5e/0x80
[ 1621.640419][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1621.640419][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1621.640419][   T73]      ip6_route_add+0x1c/0x140
[ 1621.640419][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1621.640419][   T73]      addrconf_add_dev+0xe2/0x170
[ 1621.640419][   T73]      inet6_addr_add+0x12f/0xa40
[ 1621.640419][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1621.640419][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1621.640419][   T73]      netlink_rcv_skb+0x130/0x360
[ 1621.640419][   T73]      netlink_unicast+0x449/0x710
[ 1621.640419][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1621.640419][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1621.640419][   T73]      ___sys_sendmsg+0xee/0x170
[ 1621.640419][   T73]      __sys_sendmsg+0xcd/0x170
[ 1621.640419][   T73]      do_syscall_64+0xc6/0x1e0
[ 1621.640419][   T73] 
[ 1621.642527][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1621.642527][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1621.642527][   T73]      ipv6_find_idev+0x102/0x170
[ 1621.642527][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1621.642527][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1621.642527][   T73]      netlink_rcv_skb+0x130/0x360
[ 1621.642527][   T73]      netlink_unicast+0x449/0x710
[ 1621.642527][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1621.642527][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1621.642527][   T73]      ___sys_sendmsg+0xee/0x170
[ 1621.642527][   T73]      __sys_sendmsg+0xcd/0x170
[ 1621.642527][   T73]      do_syscall_64+0xc6/0x1e0
[ 1621.642527][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1621.642527][   T73] 
[ 1621.644064][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1621.644064][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1621.644064][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1621.644064][   T73]      ipv6_find_idev+0x102/0x170
[ 1621.644064][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1621.644064][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1621.644064][   T73]      netlink_rcv_skb+0x130/0x360
[ 1621.644064][   T73]      netlink_unicast+0x449/0x710
[ 1621.644064][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1621.644064][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1621.644064][   T73]      ___sys_sendmsg+0xee/0x170
[ 1621.644064][   T73]      __sys_sendmsg+0xcd/0x170
[ 1621.644064][   T73]      do_syscall_64+0xc6/0x1e0
[ 1621.644064][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1621.644064][   T73] 
[ 1621.645760][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1621.646042][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1621.646042][   T73]      netdev_get_by_index+0x5e/0x80
[ 1621.646042][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1621.646042][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1621.646042][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1621.646042][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1621.646042][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1621.646042][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1621.646042][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1621.646042][   T73]      addrconf_dad_begin+0x310/0x670
[ 1621.646042][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1621.646042][   T73]      process_one_work+0x84d/0x18a0
[ 1621.646042][   T73]      worker_thread+0x587/0xd30
[ 1621.646042][   T73]      kthread+0x28a/0x350
[ 1621.646042][   T73]      ret_from_fork+0x31/0x70
[ 1621.646042][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1621.646042][   T73] 
[ 1621.648050][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1621.648050][   T73]      netdev_get_by_index+0x5e/0x80
[ 1621.648050][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1621.648050][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1621.648050][   T73]      ip6_route_add+0x1c/0x140
[ 1621.648050][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1621.648050][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1621.648050][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1621.648050][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1621.648050][   T73]      netlink_rcv_skb+0x130/0x360
[ 1621.648050][   T73]      netlink_unicast+0x449/0x710
[ 1621.648050][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1621.648050][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1621.648050][   T73]      ___sys_sendmsg+0xee/0x170
[ 1621.648050][   T73]      __sys_sendmsg+0xcd/0x170
[ 1621.648050][   T73]      do_syscall_64+0xc6/0x1e0
[ 1621.648050][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1621.648050][   T73] 
[ 1621.650050][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1621.650050][   T73]      netdev_get_by_index+0x5e/0x80
[ 1621.650050][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1621.650050][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1621.650050][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1621.650050][   T73]      ipv6_add_addr+0x411/0x2000
[ 1621.650050][   T73]      inet6_addr_add+0x30e/0xa40
[ 1621.650050][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1621.650050][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1621.650050][   T73]      netlink_rcv_skb+0x130/0x360
[ 1621.650050][   T73]      netlink_unicast+0x449/0x710
[ 1621.650050][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1621.650050][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1621.650050][   T73]      ___sys_sendmsg+0xee/0x170
[ 1621.650050][   T73]      __sys_sendmsg+0xcd/0x170
[ 1621.650050][   T73]      do_syscall_64+0xc6/0x1e0
[ 1621.650050][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1621.650050][   T73] 
[ 1621.652043][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1621.652043][   T73]      netdev_get_by_index+0x5e/0x80
[ 1621.652043][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1621.652043][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1621.652043][   T73]      ip6_route_add+0x1c/0x140
[ 1621.652043][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1621.652043][   T73]      addrconf_add_dev+0xe2/0x170
[ 1621.652043][   T73]      inet6_addr_add+0x12f/0xa40
[ 1621.652043][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1621.652043][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1621.652043][   T73]      netlink_rcv_skb+0x130/0x360
[ 1621.652043][   T73]      netlink_unicast+0x449/0x710
[ 1621.652043][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1621.652043][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1621.652043][   T73]      ___sys_sendmsg+0xee/0x170
[ 1621.652043][   T73]      __sys_sendmsg+0xcd/0x170
[ 1621.652043][   T73]      do_syscall_64+0xc6/0x1e0
[ 1621.652043][   T73] 
[ 1621.654041][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1621.654041][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1621.654041][   T73]      ipv6_find_idev+0x102/0x170
[ 1621.654041][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1621.654041][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1621.654041][   T73]      netlink_rcv_skb+0x130/0x360
[ 1621.654041][   T73]      netlink_unicast+0x449/0x710
[ 1621.654041][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1621.654041][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1621.654041][   T73]      ___sys_sendmsg+0xee/0x170
[ 1621.654041][   T73]      __sys_sendmsg+0xcd/0x170
[ 1621.654041][   T73]      do_syscall_64+0xc6/0x1e0
[ 1621.654041][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1621.654041][   T73] 
[ 1621.655638][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1621.655638][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1621.655638][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1621.655638][   T73]      ipv6_find_idev+0x102/0x170
[ 1621.655638][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1621.655638][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1621.655638][   T73]      netlink_rcv_skb+0x130/0x360
[ 1621.655638][   T73]      netlink_unicast+0x449/0x710
[ 1621.655638][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1621.655638][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1621.655638][   T73]      ___sys_sendmsg+0xee/0x170
[ 1621.655638][   T73]      __sys_sendmsg+0xcd/0x170
[ 1621.655638][   T73]      do_syscall_64+0xc6/0x1e0
[ 1621.655638][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1621.655638][   T73] 
[ 1621.657465][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1621.657748][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1621.657748][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1621.657748][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1621.657748][   T73]      fib6_nh_init+0xa22/0x1580
[ 1621.657748][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1621.657748][   T73]      ip6_route_add+0x1c/0x140
[ 1621.657748][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1621.657748][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1621.657748][   T73]      netlink_rcv_skb+0x130/0x360
[ 1621.657748][   T73]      netlink_unicast+0x449/0x710
[ 1621.657748][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1621.657748][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1621.657748][   T73]      ___sys_sendmsg+0xee/0x170
[ 1621.657748][   T73]      __sys_sendmsg+0xcd/0x170
[ 1621.657748][   T73]      do_syscall_64+0xc6/0x1e0
[ 1621.657748][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1621.657748][   T73] 
[ 1621.659984][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1621.659984][   T73]      dst_init+0x84/0x4a0
[ 1621.659984][   T73]      dst_alloc+0x97/0x150
[ 1621.659984][   T73]      ip6_dst_alloc+0x23/0x90
[ 1621.659984][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1621.659984][   T73]      ip6_pol_route+0x56f/0x840
[ 1621.659984][   T73]      fib6_rule_lookup+0x456/0x630
[ 1621.659984][   T73]      ip6_route_input+0x59c/0xa50
[ 1621.659984][   T73]      ipv6_rcv+0x397/0x810
[ 1621.659984][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1621.659984][   T73]      process_backlog+0x101/0x620
[ 1621.659984][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1621.659984][   T73]      net_rx_action+0x495/0xbe0
[ 1621.659984][   T73]      __do_softirq+0x1b5/0x7f6
[ 1621.659984][   T73] 
[ 1621.661926][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1621.661926][   T73]      netdev_get_by_index+0x5e/0x80
[ 1621.661926][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1621.661926][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1621.661926][   T73]      ip6_route_add+0x1c/0x140
[ 1621.661926][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1621.661926][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1621.661926][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1621.661926][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1621.661926][   T73]      netlink_rcv_skb+0x130/0x360
[ 1621.661926][   T73]      netlink_unicast+0x449/0x710
[ 1621.661926][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1621.661926][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1621.661926][   T73]      ___sys_sendmsg+0xee/0x170
[ 1621.661926][   T73]      __sys_sendmsg+0xcd/0x170
[ 1621.661926][   T73]      do_syscall_64+0xc6/0x1e0
[ 1621.661926][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1621.661926][   T73] 
[ 1621.664255][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1621.664255][   T73]      netdev_get_by_index+0x5e/0x80
[ 1621.664255][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1621.664255][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1621.664255][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1621.664255][   T73]      ipv6_add_addr+0x411/0x2000
[ 1621.664255][   T73]      inet6_addr_add+0x30e/0xa40
[ 1621.664255][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1621.664255][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1621.664255][   T73]      netlink_rcv_skb+0x130/0x360
[ 1621.664255][   T73]      netlink_unicast+0x449/0x710
[ 1621.664255][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1621.664255][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1621.664255][   T73]      ___sys_sendmsg+0xee/0x170
[ 1621.664255][   T73]      __sys_sendmsg+0xcd/0x170
[ 1621.664255][   T73]      do_syscall_64+0xc6/0x1e0
[ 1621.664255][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1621.664255][   T73] 
[ 1621.666745][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1621.666745][   T73]      netdev_get_by_index+0x5e/0x80
[ 1621.666745][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1621.666745][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1621.666745][   T73]      ip6_route_add+0x1c/0x140
[ 1621.666745][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1621.666745][   T73]      addrconf_add_dev+0xe2/0x170
[ 1621.666745][   T73]      inet6_addr_add+0x12f/0xa40
[ 1621.666745][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1621.666745][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1621.666745][   T73]      netlink_rcv_skb+0x130/0x360
[ 1621.666745][   T73]      netlink_unicast+0x449/0x710
[ 1621.666745][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1621.666745][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1621.666745][   T73]      ___sys_sendmsg+0xee/0x170
[ 1621.666745][   T73]      __sys_sendmsg+0xcd/0x170
[ 1621.666745][   T73]      do_syscall_64+0xc6/0x1e0
[ 1621.666745][   T73] 
[ 1621.669061][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1621.669061][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1621.669061][   T73]      ipv6_find_idev+0x102/0x170
[ 1621.669061][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1621.669061][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1621.669061][   T73]      netlink_rcv_skb+0x130/0x360
[ 1621.669061][   T73]      netlink_unicast+0x449/0x710
[ 1621.669061][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1621.669061][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1621.669061][   T73]      ___sys_sendmsg+0xee/0x170
[ 1621.669061][   T73]      __sys_sendmsg+0xcd/0x170
[ 1621.669061][   T73]      do_syscall_64+0xc6/0x1e0
[ 1621.669061][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1621.669061][   T73] 
[ 1621.670775][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1621.670775][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1621.670775][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1621.670775][   T73]      ipv6_find_idev+0x102/0x170
[ 1621.670775][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1621.670775][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1621.670775][   T73]      netlink_rcv_skb+0x130/0x360
[ 1621.670775][   T73]      netlink_unicast+0x449/0x710
[ 1621.670775][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1621.670775][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1621.670775][   T73]      ___sys_sendmsg+0xee/0x170
[ 1621.670775][   T73]      __sys_sendmsg+0xcd/0x170
[ 1621.670775][   T73]      do_syscall_64+0xc6/0x1e0
[ 1621.670775][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1621.670775][   T73] 
[ 1621.672635][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1621.672978][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1621.672978][   T73]      netdev_get_by_index+0x5e/0x80
[ 1621.672978][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1621.672978][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1621.672978][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1621.672978][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1621.672978][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1621.672978][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1621.672978][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1621.672978][   T73]      addrconf_dad_begin+0x310/0x670
[ 1621.672978][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1621.672978][   T73]      process_one_work+0x84d/0x18a0
[ 1621.672978][   T73]      worker_thread+0x587/0xd30
[ 1621.672978][   T73]      kthread+0x28a/0x350
[ 1621.672978][   T73]      ret_from_fork+0x31/0x70
[ 1621.672978][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1621.672978][   T73] 
[ 1621.675119][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1621.675119][   T73]      netdev_get_by_index+0x5e/0x80
[ 1621.675119][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1621.675119][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1621.675119][   T73]      ip6_route_add+0x1c/0x140
[ 1621.675119][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1621.675119][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1621.675119][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1621.675119][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1621.675119][   T73]      netlink_rcv_skb+0x130/0x360
[ 1621.675119][   T73]      netlink_unicast+0x449/0x710
[ 1621.675119][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1621.675119][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1621.675119][   T73]      ___sys_sendmsg+0xee/0x170
[ 1621.675119][   T73]      __sys_sendmsg+0xcd/0x170
[ 1621.675119][   T73]      do_syscall_64+0xc6/0x1e0
[ 1621.675119][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1621.675119][   T73] 
[ 1621.677372][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1621.677372][   T73]      netdev_get_by_index+0x5e/0x80
[ 1621.677372][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1621.677372][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1621.677372][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1621.677372][   T73]      ipv6_add_addr+0x411/0x2000
[ 1621.677372][   T73]      inet6_addr_add+0x30e/0xa40
[ 1621.677372][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1621.677372][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1621.677372][   T73]      netlink_rcv_skb+0x130/0x360
[ 1621.677372][   T73]      netlink_unicast+0x449/0x710
[ 1621.677372][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1621.677372][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1621.677372][   T73]      ___sys_sendmsg+0xee/0x170
[ 1621.677372][   T73]      __sys_sendmsg+0xcd/0x170
[ 1621.677372][   T73]      do_syscall_64+0xc6/0x1e0
[ 1621.677372][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1621.677372][   T73] 
[ 1621.679604][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1621.679604][   T73]      netdev_get_by_index+0x5e/0x80
[ 1621.679604][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1621.679604][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1621.679604][   T73]      ip6_route_add+0x1c/0x140
[ 1621.679604][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1621.679604][   T73]      addrconf_add_dev+0xe2/0x170
[ 1621.679604][   T73]      inet6_addr_add+0x12f/0xa40
[ 1621.679604][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1621.679604][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1621.679604][   T73]      netlink_rcv_skb+0x130/0x360
[ 1621.679604][   T73]      netlink_unicast+0x449/0x710
[ 1621.679604][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1621.679604][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1621.679604][   T73]      ___sys_sendmsg+0xee/0x170
[ 1621.679604][   T73]      __sys_sendmsg+0xcd/0x170
[ 1621.679604][   T73]      do_syscall_64+0xc6/0x1e0
[ 1621.679604][   T73] 
[ 1621.681795][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1621.681795][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1621.681795][   T73]      ipv6_find_idev+0x102/0x170
[ 1621.681795][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1621.681795][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1621.681795][   T73]      netlink_rcv_skb+0x130/0x360
[ 1621.681795][   T73]      netlink_unicast+0x449/0x710
[ 1621.681795][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1621.681795][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1621.681795][   T73]      ___sys_sendmsg+0xee/0x170
[ 1621.681795][   T73]      __sys_sendmsg+0xcd/0x170
[ 1621.681795][   T73]      do_syscall_64+0xc6/0x1e0
[ 1621.681795][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1621.681795][   T73] 
[ 1621.683504][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1621.683504][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1621.683504][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1621.683504][   T73]      ipv6_find_idev+0x102/0x170
[ 1621.683504][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1621.683504][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1621.683504][   T73]      netlink_rcv_skb+0x130/0x360
[ 1621.683504][   T73]      netlink_unicast+0x449/0x710
[ 1621.683504][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1621.683504][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1621.683504][   T73]      ___sys_sendmsg+0xee/0x170
[ 1621.683504][   T73]      __sys_sendmsg+0xcd/0x170
[ 1621.683504][   T73]      do_syscall_64+0xc6/0x1e0
[ 1621.683504][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1621.683504][   T73] 
[ 1631.695804][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1631.696284][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1631.696284][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1631.696284][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1631.696284][   T73]      fib6_nh_init+0xa22/0x1580
[ 1631.696284][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1631.696284][   T73]      ip6_route_add+0x1c/0x140
[ 1631.696284][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1631.696284][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1631.696284][   T73]      netlink_rcv_skb+0x130/0x360
[ 1631.696284][   T73]      netlink_unicast+0x449/0x710
[ 1631.696284][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1631.696284][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1631.696284][   T73]      ___sys_sendmsg+0xee/0x170
[ 1631.696284][   T73]      __sys_sendmsg+0xcd/0x170
[ 1631.696284][   T73]      do_syscall_64+0xc6/0x1e0
[ 1631.696284][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1631.696284][   T73] 
[ 1631.698173][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1631.698173][   T73]      dst_init+0x84/0x4a0
[ 1631.698173][   T73]      dst_alloc+0x97/0x150
[ 1631.698173][   T73]      ip6_dst_alloc+0x23/0x90
[ 1631.698173][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1631.698173][   T73]      ip6_pol_route+0x56f/0x840
[ 1631.698173][   T73]      fib6_rule_lookup+0x456/0x630
[ 1631.698173][   T73]      ip6_route_input+0x59c/0xa50
[ 1631.698173][   T73]      ipv6_rcv+0x397/0x810
[ 1631.698173][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1631.698173][   T73]      process_backlog+0x101/0x620
[ 1631.698173][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1631.698173][   T73]      net_rx_action+0x495/0xbe0
[ 1631.698173][   T73]      __do_softirq+0x1b5/0x7f6
[ 1631.698173][   T73] 
[ 1631.699815][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1631.699815][   T73]      netdev_get_by_index+0x5e/0x80
[ 1631.699815][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1631.699815][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1631.699815][   T73]      ip6_route_add+0x1c/0x140
[ 1631.699815][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1631.699815][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1631.699815][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1631.699815][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1631.699815][   T73]      netlink_rcv_skb+0x130/0x360
[ 1631.699815][   T73]      netlink_unicast+0x449/0x710
[ 1631.699815][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1631.699815][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1631.699815][   T73]      ___sys_sendmsg+0xee/0x170
[ 1631.699815][   T73]      __sys_sendmsg+0xcd/0x170
[ 1631.699815][   T73]      do_syscall_64+0xc6/0x1e0
[ 1631.699815][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1631.699815][   T73] 
[ 1631.701816][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1631.701816][   T73]      netdev_get_by_index+0x5e/0x80
[ 1631.701816][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1631.701816][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1631.701816][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1631.701816][   T73]      ipv6_add_addr+0x411/0x2000
[ 1631.701816][   T73]      inet6_addr_add+0x30e/0xa40
[ 1631.701816][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1631.701816][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1631.701816][   T73]      netlink_rcv_skb+0x130/0x360
[ 1631.701816][   T73]      netlink_unicast+0x449/0x710
[ 1631.701816][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1631.701816][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1631.701816][   T73]      ___sys_sendmsg+0xee/0x170
[ 1631.701816][   T73]      __sys_sendmsg+0xcd/0x170
[ 1631.701816][   T73]      do_syscall_64+0xc6/0x1e0
[ 1631.701816][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1631.701816][   T73] 
[ 1631.703818][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1631.703818][   T73]      netdev_get_by_index+0x5e/0x80
[ 1631.703818][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1631.703818][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1631.703818][   T73]      ip6_route_add+0x1c/0x140
[ 1631.703818][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1631.703818][   T73]      addrconf_add_dev+0xe2/0x170
[ 1631.703818][   T73]      inet6_addr_add+0x12f/0xa40
[ 1631.703818][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1631.703818][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1631.703818][   T73]      netlink_rcv_skb+0x130/0x360
[ 1631.703818][   T73]      netlink_unicast+0x449/0x710
[ 1631.703818][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1631.703818][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1631.703818][   T73]      ___sys_sendmsg+0xee/0x170
[ 1631.703818][   T73]      __sys_sendmsg+0xcd/0x170
[ 1631.703818][   T73]      do_syscall_64+0xc6/0x1e0
[ 1631.703818][   T73] 
[ 1631.705774][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1631.705774][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1631.705774][   T73]      ipv6_find_idev+0x102/0x170
[ 1631.705774][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1631.705774][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1631.705774][   T73]      netlink_rcv_skb+0x130/0x360
[ 1631.705774][   T73]      netlink_unicast+0x449/0x710
[ 1631.705774][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1631.705774][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1631.705774][   T73]      ___sys_sendmsg+0xee/0x170
[ 1631.705774][   T73]      __sys_sendmsg+0xcd/0x170
[ 1631.705774][   T73]      do_syscall_64+0xc6/0x1e0
[ 1631.705774][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1631.705774][   T73] 
[ 1631.707338][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1631.707338][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1631.707338][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1631.707338][   T73]      ipv6_find_idev+0x102/0x170
[ 1631.707338][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1631.707338][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1631.707338][   T73]      netlink_rcv_skb+0x130/0x360
[ 1631.707338][   T73]      netlink_unicast+0x449/0x710
[ 1631.707338][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1631.707338][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1631.707338][   T73]      ___sys_sendmsg+0xee/0x170
[ 1631.707338][   T73]      __sys_sendmsg+0xcd/0x170
[ 1631.707338][   T73]      do_syscall_64+0xc6/0x1e0
[ 1631.707338][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1631.707338][   T73] 
[ 1631.709044][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1631.709319][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1631.709319][   T73]      netdev_get_by_index+0x5e/0x80
[ 1631.709319][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1631.709319][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1631.709319][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1631.709319][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1631.709319][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1631.709319][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1631.709319][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1631.709319][   T73]      addrconf_dad_begin+0x310/0x670
[ 1631.709319][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1631.709319][   T73]      process_one_work+0x84d/0x18a0
[ 1631.709319][   T73]      worker_thread+0x587/0xd30
[ 1631.709319][   T73]      kthread+0x28a/0x350
[ 1631.709319][   T73]      ret_from_fork+0x31/0x70
[ 1631.709319][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1631.709319][   T73] 
[ 1631.711228][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1631.711228][   T73]      netdev_get_by_index+0x5e/0x80
[ 1631.711228][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1631.711228][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1631.711228][   T73]      ip6_route_add+0x1c/0x140
[ 1631.711228][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1631.711228][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1631.711228][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1631.711228][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1631.711228][   T73]      netlink_rcv_skb+0x130/0x360
[ 1631.711228][   T73]      netlink_unicast+0x449/0x710
[ 1631.711228][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1631.711228][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1631.711228][   T73]      ___sys_sendmsg+0xee/0x170
[ 1631.711228][   T73]      __sys_sendmsg+0xcd/0x170
[ 1631.711228][   T73]      do_syscall_64+0xc6/0x1e0
[ 1631.711228][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1631.711228][   T73] 
[ 1631.713225][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1631.713225][   T73]      netdev_get_by_index+0x5e/0x80
[ 1631.713225][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1631.713225][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1631.713225][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1631.713225][   T73]      ipv6_add_addr+0x411/0x2000
[ 1631.713225][   T73]      inet6_addr_add+0x30e/0xa40
[ 1631.713225][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1631.713225][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1631.713225][   T73]      netlink_rcv_skb+0x130/0x360
[ 1631.713225][   T73]      netlink_unicast+0x449/0x710
[ 1631.713225][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1631.713225][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1631.713225][   T73]      ___sys_sendmsg+0xee/0x170
[ 1631.713225][   T73]      __sys_sendmsg+0xcd/0x170
[ 1631.713225][   T73]      do_syscall_64+0xc6/0x1e0
[ 1631.713225][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1631.713225][   T73] 
[ 1631.715212][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1631.715212][   T73]      netdev_get_by_index+0x5e/0x80
[ 1631.715212][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1631.715212][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1631.715212][   T73]      ip6_route_add+0x1c/0x140
[ 1631.715212][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1631.715212][   T73]      addrconf_add_dev+0xe2/0x170
[ 1631.715212][   T73]      inet6_addr_add+0x12f/0xa40
[ 1631.715212][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1631.715212][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1631.715212][   T73]      netlink_rcv_skb+0x130/0x360
[ 1631.715212][   T73]      netlink_unicast+0x449/0x710
[ 1631.715212][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1631.715212][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1631.715212][   T73]      ___sys_sendmsg+0xee/0x170
[ 1631.715212][   T73]      __sys_sendmsg+0xcd/0x170
[ 1631.715212][   T73]      do_syscall_64+0xc6/0x1e0
[ 1631.715212][   T73] 
[ 1631.717170][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1631.717170][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1631.717170][   T73]      ipv6_find_idev+0x102/0x170
[ 1631.717170][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1631.717170][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1631.717170][   T73]      netlink_rcv_skb+0x130/0x360
[ 1631.717170][   T73]      netlink_unicast+0x449/0x710
[ 1631.717170][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1631.717170][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1631.717170][   T73]      ___sys_sendmsg+0xee/0x170
[ 1631.717170][   T73]      __sys_sendmsg+0xcd/0x170
[ 1631.717170][   T73]      do_syscall_64+0xc6/0x1e0
[ 1631.717170][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1631.717170][   T73] 
[ 1631.718711][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1631.718711][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1631.718711][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1631.718711][   T73]      ipv6_find_idev+0x102/0x170
[ 1631.718711][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1631.718711][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1631.718711][   T73]      netlink_rcv_skb+0x130/0x360
[ 1631.718711][   T73]      netlink_unicast+0x449/0x710
[ 1631.718711][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1631.718711][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1631.718711][   T73]      ___sys_sendmsg+0xee/0x170
[ 1631.718711][   T73]      __sys_sendmsg+0xcd/0x170
[ 1631.718711][   T73]      do_syscall_64+0xc6/0x1e0
[ 1631.718711][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1631.718711][   T73] 
[ 1631.720388][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1631.720662][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1631.720662][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1631.720662][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1631.720662][   T73]      fib6_nh_init+0xa22/0x1580
[ 1631.720662][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1631.720662][   T73]      ip6_route_add+0x1c/0x140
[ 1631.720662][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1631.720662][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1631.720662][   T73]      netlink_rcv_skb+0x130/0x360
[ 1631.720662][   T73]      netlink_unicast+0x449/0x710
[ 1631.720662][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1631.720662][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1631.720662][   T73]      ___sys_sendmsg+0xee/0x170
[ 1631.720662][   T73]      __sys_sendmsg+0xcd/0x170
[ 1631.720662][   T73]      do_syscall_64+0xc6/0x1e0
[ 1631.720662][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1631.720662][   T73] 
[ 1631.722664][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1631.722664][   T73]      dst_init+0x84/0x4a0
[ 1631.722664][   T73]      dst_alloc+0x97/0x150
[ 1631.722664][   T73]      ip6_dst_alloc+0x23/0x90
[ 1631.722664][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1631.722664][   T73]      ip6_pol_route+0x56f/0x840
[ 1631.722664][   T73]      fib6_rule_lookup+0x456/0x630
[ 1631.722664][   T73]      ip6_route_input+0x59c/0xa50
[ 1631.722664][   T73]      ipv6_rcv+0x397/0x810
[ 1631.722664][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1631.722664][   T73]      process_backlog+0x101/0x620
[ 1631.722664][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1631.722664][   T73]      net_rx_action+0x495/0xbe0
[ 1631.722664][   T73]      __do_softirq+0x1b5/0x7f6
[ 1631.722664][   T73] 
[ 1631.724537][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1631.724537][   T73]      netdev_get_by_index+0x5e/0x80
[ 1631.724537][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1631.724537][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1631.724537][   T73]      ip6_route_add+0x1c/0x140
[ 1631.724537][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1631.724537][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1631.724537][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1631.724537][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1631.724537][   T73]      netlink_rcv_skb+0x130/0x360
[ 1631.724537][   T73]      netlink_unicast+0x449/0x710
[ 1631.724537][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1631.724537][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1631.724537][   T73]      ___sys_sendmsg+0xee/0x170
[ 1631.724537][   T73]      __sys_sendmsg+0xcd/0x170
[ 1631.724537][   T73]      do_syscall_64+0xc6/0x1e0
[ 1631.724537][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1631.724537][   T73] 
[ 1631.727244][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1631.727244][   T73]      netdev_get_by_index+0x5e/0x80
[ 1631.727244][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1631.727244][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1631.727244][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1631.727244][   T73]      ipv6_add_addr+0x411/0x2000
[ 1631.727244][   T73]      inet6_addr_add+0x30e/0xa40
[ 1631.727244][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1631.727244][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1631.727244][   T73]      netlink_rcv_skb+0x130/0x360
[ 1631.727244][   T73]      netlink_unicast+0x449/0x710
[ 1631.727244][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1631.727244][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1631.727244][   T73]      ___sys_sendmsg+0xee/0x170
[ 1631.727244][   T73]      __sys_sendmsg+0xcd/0x170
[ 1631.727244][   T73]      do_syscall_64+0xc6/0x1e0
[ 1631.727244][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1631.727244][   T73] 
[ 1631.729476][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1631.729476][   T73]      netdev_get_by_index+0x5e/0x80
[ 1631.729476][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1631.729476][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1631.729476][   T73]      ip6_route_add+0x1c/0x140
[ 1631.729476][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1631.729476][   T73]      addrconf_add_dev+0xe2/0x170
[ 1631.729476][   T73]      inet6_addr_add+0x12f/0xa40
[ 1631.729476][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1631.729476][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1631.729476][   T73]      netlink_rcv_skb+0x130/0x360
[ 1631.729476][   T73]      netlink_unicast+0x449/0x710
[ 1631.729476][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1631.729476][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1631.729476][   T73]      ___sys_sendmsg+0xee/0x170
[ 1631.729476][   T73]      __sys_sendmsg+0xcd/0x170
[ 1631.729476][   T73]      do_syscall_64+0xc6/0x1e0
[ 1631.729476][   T73] 
[ 1631.731674][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1631.731674][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1631.731674][   T73]      ipv6_find_idev+0x102/0x170
[ 1631.731674][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1631.731674][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1631.731674][   T73]      netlink_rcv_skb+0x130/0x360
[ 1631.731674][   T73]      netlink_unicast+0x449/0x710
[ 1631.731674][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1631.731674][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1631.731674][   T73]      ___sys_sendmsg+0xee/0x170
[ 1631.731674][   T73]      __sys_sendmsg+0xcd/0x170
[ 1631.731674][   T73]      do_syscall_64+0xc6/0x1e0
[ 1631.731674][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1631.731674][   T73] 
[ 1631.733453][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1631.733453][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1631.733453][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1631.733453][   T73]      ipv6_find_idev+0x102/0x170
[ 1631.733453][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1631.733453][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1631.733453][   T73]      netlink_rcv_skb+0x130/0x360
[ 1631.733453][   T73]      netlink_unicast+0x449/0x710
[ 1631.733453][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1631.733453][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1631.733453][   T73]      ___sys_sendmsg+0xee/0x170
[ 1631.733453][   T73]      __sys_sendmsg+0xcd/0x170
[ 1631.733453][   T73]      do_syscall_64+0xc6/0x1e0
[ 1631.733453][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1631.733453][   T73] 
[ 1631.735312][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1631.735641][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1631.735641][   T73]      netdev_get_by_index+0x5e/0x80
[ 1631.735641][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1631.735641][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1631.735641][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1631.735641][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1631.735641][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1631.735641][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1631.735641][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1631.735641][   T73]      addrconf_dad_begin+0x310/0x670
[ 1631.735641][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1631.735641][   T73]      process_one_work+0x84d/0x18a0
[ 1631.735641][   T73]      worker_thread+0x587/0xd30
[ 1631.735641][   T73]      kthread+0x28a/0x350
[ 1631.735641][   T73]      ret_from_fork+0x31/0x70
[ 1631.735641][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1631.735641][   T73] 
[ 1631.737730][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1631.737730][   T73]      netdev_get_by_index+0x5e/0x80
[ 1631.737730][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1631.737730][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1631.737730][   T73]      ip6_route_add+0x1c/0x140
[ 1631.737730][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1631.737730][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1631.737730][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1631.737730][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1631.737730][   T73]      netlink_rcv_skb+0x130/0x360
[ 1631.737730][   T73]      netlink_unicast+0x449/0x710
[ 1631.737730][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1631.737730][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1631.737730][   T73]      ___sys_sendmsg+0xee/0x170
[ 1631.737730][   T73]      __sys_sendmsg+0xcd/0x170
[ 1631.737730][   T73]      do_syscall_64+0xc6/0x1e0
[ 1631.737730][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1631.737730][   T73] 
[ 1631.740347][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1631.740347][   T73]      netdev_get_by_index+0x5e/0x80
[ 1631.740347][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1631.740347][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1631.740347][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1631.740347][   T73]      ipv6_add_addr+0x411/0x2000
[ 1631.740347][   T73]      inet6_addr_add+0x30e/0xa40
[ 1631.740347][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1631.740347][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1631.740347][   T73]      netlink_rcv_skb+0x130/0x360
[ 1631.740347][   T73]      netlink_unicast+0x449/0x710
[ 1631.740347][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1631.740347][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1631.740347][   T73]      ___sys_sendmsg+0xee/0x170
[ 1631.740347][   T73]      __sys_sendmsg+0xcd/0x170
[ 1631.740347][   T73]      do_syscall_64+0xc6/0x1e0
[ 1631.740347][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1631.740347][   T73] 
[ 1631.742601][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1631.742601][   T73]      netdev_get_by_index+0x5e/0x80
[ 1631.742601][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1631.742601][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1631.742601][   T73]      ip6_route_add+0x1c/0x140
[ 1631.742601][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1631.742601][   T73]      addrconf_add_dev+0xe2/0x170
[ 1631.742601][   T73]      inet6_addr_add+0x12f/0xa40
[ 1631.742601][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1631.742601][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1631.742601][   T73]      netlink_rcv_skb+0x130/0x360
[ 1631.742601][   T73]      netlink_unicast+0x449/0x710
[ 1631.742601][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1631.742601][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1631.742601][   T73]      ___sys_sendmsg+0xee/0x170
[ 1631.742601][   T73]      __sys_sendmsg+0xcd/0x170
[ 1631.742601][   T73]      do_syscall_64+0xc6/0x1e0
[ 1631.742601][   T73] 
[ 1631.744845][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1631.744845][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1631.744845][   T73]      ipv6_find_idev+0x102/0x170
[ 1631.744845][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1631.744845][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1631.744845][   T73]      netlink_rcv_skb+0x130/0x360
[ 1631.744845][   T73]      netlink_unicast+0x449/0x710
[ 1631.744845][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1631.744845][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1631.744845][   T73]      ___sys_sendmsg+0xee/0x170
[ 1631.744845][   T73]      __sys_sendmsg+0xcd/0x170
[ 1631.744845][   T73]      do_syscall_64+0xc6/0x1e0
[ 1631.744845][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1631.744845][   T73] 
[ 1631.746560][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1631.746560][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1631.746560][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1631.746560][   T73]      ipv6_find_idev+0x102/0x170
[ 1631.746560][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1631.746560][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1631.746560][   T73]      netlink_rcv_skb+0x130/0x360
[ 1631.746560][   T73]      netlink_unicast+0x449/0x710
[ 1631.746560][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1631.746560][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1631.746560][   T73]      ___sys_sendmsg+0xee/0x170
[ 1631.746560][   T73]      __sys_sendmsg+0xcd/0x170
[ 1631.746560][   T73]      do_syscall_64+0xc6/0x1e0
[ 1631.746560][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1631.746560][   T73] 
[ 1641.935737][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1641.936285][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1641.936285][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1641.936285][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1641.936285][   T73]      fib6_nh_init+0xa22/0x1580
[ 1641.936285][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1641.936285][   T73]      ip6_route_add+0x1c/0x140
[ 1641.936285][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1641.936285][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1641.936285][   T73]      netlink_rcv_skb+0x130/0x360
[ 1641.936285][   T73]      netlink_unicast+0x449/0x710
[ 1641.936285][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1641.936285][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1641.936285][   T73]      ___sys_sendmsg+0xee/0x170
[ 1641.936285][   T73]      __sys_sendmsg+0xcd/0x170
[ 1641.936285][   T73]      do_syscall_64+0xc6/0x1e0
[ 1641.936285][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1641.936285][   T73] 
[ 1641.939219][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1641.939219][   T73]      dst_init+0x84/0x4a0
[ 1641.939219][   T73]      dst_alloc+0x97/0x150
[ 1641.939219][   T73]      ip6_dst_alloc+0x23/0x90
[ 1641.939219][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1641.939219][   T73]      ip6_pol_route+0x56f/0x840
[ 1641.939219][   T73]      fib6_rule_lookup+0x456/0x630
[ 1641.939219][   T73]      ip6_route_input+0x59c/0xa50
[ 1641.939219][   T73]      ipv6_rcv+0x397/0x810
[ 1641.939219][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1641.939219][   T73]      process_backlog+0x101/0x620
[ 1641.939219][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1641.939219][   T73]      net_rx_action+0x495/0xbe0
[ 1641.939219][   T73]      __do_softirq+0x1b5/0x7f6
[ 1641.939219][   T73] 
[ 1641.941740][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1641.941740][   T73]      netdev_get_by_index+0x5e/0x80
[ 1641.941740][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1641.941740][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1641.941740][   T73]      ip6_route_add+0x1c/0x140
[ 1641.941740][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1641.941740][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1641.941740][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1641.941740][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1641.941740][   T73]      netlink_rcv_skb+0x130/0x360
[ 1641.941740][   T73]      netlink_unicast+0x449/0x710
[ 1641.941740][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1641.941740][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1641.941740][   T73]      ___sys_sendmsg+0xee/0x170
[ 1641.941740][   T73]      __sys_sendmsg+0xcd/0x170
[ 1641.941740][   T73]      do_syscall_64+0xc6/0x1e0
[ 1641.941740][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1641.941740][   T73] 
[ 1641.944271][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1641.944271][   T73]      netdev_get_by_index+0x5e/0x80
[ 1641.944271][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1641.944271][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1641.944271][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1641.944271][   T73]      ipv6_add_addr+0x411/0x2000
[ 1641.944271][   T73]      inet6_addr_add+0x30e/0xa40
[ 1641.944271][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1641.944271][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1641.944271][   T73]      netlink_rcv_skb+0x130/0x360
[ 1641.944271][   T73]      netlink_unicast+0x449/0x710
[ 1641.944271][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1641.944271][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1641.944271][   T73]      ___sys_sendmsg+0xee/0x170
[ 1641.944271][   T73]      __sys_sendmsg+0xcd/0x170
[ 1641.944271][   T73]      do_syscall_64+0xc6/0x1e0
[ 1641.944271][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1641.944271][   T73] 
[ 1641.946277][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1641.946277][   T73]      netdev_get_by_index+0x5e/0x80
[ 1641.946277][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1641.946277][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1641.946277][   T73]      ip6_route_add+0x1c/0x140
[ 1641.946277][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1641.946277][   T73]      addrconf_add_dev+0xe2/0x170
[ 1641.946277][   T73]      inet6_addr_add+0x12f/0xa40
[ 1641.946277][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1641.946277][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1641.946277][   T73]      netlink_rcv_skb+0x130/0x360
[ 1641.946277][   T73]      netlink_unicast+0x449/0x710
[ 1641.946277][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1641.946277][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1641.946277][   T73]      ___sys_sendmsg+0xee/0x170
[ 1641.946277][   T73]      __sys_sendmsg+0xcd/0x170
[ 1641.946277][   T73]      do_syscall_64+0xc6/0x1e0
[ 1641.946277][   T73] 
[ 1641.948426][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1641.948426][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1641.948426][   T73]      ipv6_find_idev+0x102/0x170
[ 1641.948426][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1641.948426][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1641.948426][   T73]      netlink_rcv_skb+0x130/0x360
[ 1641.948426][   T73]      netlink_unicast+0x449/0x710
[ 1641.948426][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1641.948426][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1641.948426][   T73]      ___sys_sendmsg+0xee/0x170
[ 1641.948426][   T73]      __sys_sendmsg+0xcd/0x170
[ 1641.948426][   T73]      do_syscall_64+0xc6/0x1e0
[ 1641.948426][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1641.948426][   T73] 
[ 1641.950141][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1641.950141][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1641.950141][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1641.950141][   T73]      ipv6_find_idev+0x102/0x170
[ 1641.950141][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1641.950141][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1641.950141][   T73]      netlink_rcv_skb+0x130/0x360
[ 1641.950141][   T73]      netlink_unicast+0x449/0x710
[ 1641.950141][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1641.950141][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1641.950141][   T73]      ___sys_sendmsg+0xee/0x170
[ 1641.950141][   T73]      __sys_sendmsg+0xcd/0x170
[ 1641.950141][   T73]      do_syscall_64+0xc6/0x1e0
[ 1641.950141][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1641.950141][   T73] 
[ 1641.952598][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1641.953044][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1641.953044][   T73]      netdev_get_by_index+0x5e/0x80
[ 1641.953044][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1641.953044][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1641.953044][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1641.953044][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1641.953044][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1641.953044][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1641.953044][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1641.953044][   T73]      addrconf_dad_begin+0x310/0x670
[ 1641.953044][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1641.953044][   T73]      process_one_work+0x84d/0x18a0
[ 1641.953044][   T73]      worker_thread+0x587/0xd30
[ 1641.953044][   T73]      kthread+0x28a/0x350
[ 1641.953044][   T73]      ret_from_fork+0x31/0x70
[ 1641.953044][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1641.953044][   T73] 
[ 1641.955308][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1641.955308][   T73]      netdev_get_by_index+0x5e/0x80
[ 1641.955308][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1641.955308][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1641.955308][   T73]      ip6_route_add+0x1c/0x140
[ 1641.955308][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1641.955308][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1641.955308][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1641.955308][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1641.955308][   T73]      netlink_rcv_skb+0x130/0x360
[ 1641.955308][   T73]      netlink_unicast+0x449/0x710
[ 1641.955308][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1641.955308][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1641.955308][   T73]      ___sys_sendmsg+0xee/0x170
[ 1641.955308][   T73]      __sys_sendmsg+0xcd/0x170
[ 1641.955308][   T73]      do_syscall_64+0xc6/0x1e0
[ 1641.955308][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1641.955308][   T73] 
[ 1641.957819][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1641.957819][   T73]      netdev_get_by_index+0x5e/0x80
[ 1641.957819][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1641.957819][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1641.957819][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1641.957819][   T73]      ipv6_add_addr+0x411/0x2000
[ 1641.957819][   T73]      inet6_addr_add+0x30e/0xa40
[ 1641.957819][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1641.957819][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1641.957819][   T73]      netlink_rcv_skb+0x130/0x360
[ 1641.957819][   T73]      netlink_unicast+0x449/0x710
[ 1641.957819][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1641.957819][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1641.957819][   T73]      ___sys_sendmsg+0xee/0x170
[ 1641.957819][   T73]      __sys_sendmsg+0xcd/0x170
[ 1641.957819][   T73]      do_syscall_64+0xc6/0x1e0
[ 1641.957819][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1641.957819][   T73] 
[ 1641.960166][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1641.960166][   T73]      netdev_get_by_index+0x5e/0x80
[ 1641.960166][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1641.960166][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1641.960166][   T73]      ip6_route_add+0x1c/0x140
[ 1641.960166][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1641.960166][   T73]      addrconf_add_dev+0xe2/0x170
[ 1641.960166][   T73]      inet6_addr_add+0x12f/0xa40
[ 1641.960166][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1641.960166][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1641.960166][   T73]      netlink_rcv_skb+0x130/0x360
[ 1641.960166][   T73]      netlink_unicast+0x449/0x710
[ 1641.960166][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1641.960166][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1641.960166][   T73]      ___sys_sendmsg+0xee/0x170
[ 1641.960166][   T73]      __sys_sendmsg+0xcd/0x170
[ 1641.960166][   T73]      do_syscall_64+0xc6/0x1e0
[ 1641.960166][   T73] 
[ 1641.962341][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1641.962341][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1641.962341][   T73]      ipv6_find_idev+0x102/0x170
[ 1641.962341][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1641.962341][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1641.962341][   T73]      netlink_rcv_skb+0x130/0x360
[ 1641.962341][   T73]      netlink_unicast+0x449/0x710
[ 1641.962341][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1641.962341][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1641.962341][   T73]      ___sys_sendmsg+0xee/0x170
[ 1641.962341][   T73]      __sys_sendmsg+0xcd/0x170
[ 1641.962341][   T73]      do_syscall_64+0xc6/0x1e0
[ 1641.962341][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1641.962341][   T73] 
[ 1641.964119][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1641.964119][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1641.964119][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1641.964119][   T73]      ipv6_find_idev+0x102/0x170
[ 1641.964119][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1641.964119][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1641.964119][   T73]      netlink_rcv_skb+0x130/0x360
[ 1641.964119][   T73]      netlink_unicast+0x449/0x710
[ 1641.964119][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1641.964119][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1641.964119][   T73]      ___sys_sendmsg+0xee/0x170
[ 1641.964119][   T73]      __sys_sendmsg+0xcd/0x170
[ 1641.964119][   T73]      do_syscall_64+0xc6/0x1e0
[ 1641.964119][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1641.964119][   T73] 
[ 1641.966077][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1641.966384][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1641.966384][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1641.966384][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1641.966384][   T73]      fib6_nh_init+0xa22/0x1580
[ 1641.966384][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1641.966384][   T73]      ip6_route_add+0x1c/0x140
[ 1641.966384][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1641.966384][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1641.966384][   T73]      netlink_rcv_skb+0x130/0x360
[ 1641.966384][   T73]      netlink_unicast+0x449/0x710
[ 1641.966384][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1641.966384][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1641.966384][   T73]      ___sys_sendmsg+0xee/0x170
[ 1641.966384][   T73]      __sys_sendmsg+0xcd/0x170
[ 1641.966384][   T73]      do_syscall_64+0xc6/0x1e0
[ 1641.966384][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1641.966384][   T73] 
[ 1641.968515][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1641.968515][   T73]      dst_init+0x84/0x4a0
[ 1641.968515][   T73]      dst_alloc+0x97/0x150
[ 1641.968515][   T73]      ip6_dst_alloc+0x23/0x90
[ 1641.968515][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1641.968515][   T73]      ip6_pol_route+0x56f/0x840
[ 1641.968515][   T73]      fib6_rule_lookup+0x456/0x630
[ 1641.968515][   T73]      ip6_route_input+0x59c/0xa50
[ 1641.968515][   T73]      ipv6_rcv+0x397/0x810
[ 1641.968515][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1641.968515][   T73]      process_backlog+0x101/0x620
[ 1641.968515][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1641.968515][   T73]      net_rx_action+0x495/0xbe0
[ 1641.968515][   T73]      __do_softirq+0x1b5/0x7f6
[ 1641.968515][   T73] 
[ 1641.970409][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1641.970409][   T73]      netdev_get_by_index+0x5e/0x80
[ 1641.970409][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1641.970409][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1641.970409][   T73]      ip6_route_add+0x1c/0x140
[ 1641.970409][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1641.970409][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1641.970409][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1641.970409][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1641.970409][   T73]      netlink_rcv_skb+0x130/0x360
[ 1641.970409][   T73]      netlink_unicast+0x449/0x710
[ 1641.970409][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1641.970409][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1641.970409][   T73]      ___sys_sendmsg+0xee/0x170
[ 1641.970409][   T73]      __sys_sendmsg+0xcd/0x170
[ 1641.970409][   T73]      do_syscall_64+0xc6/0x1e0
[ 1641.970409][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1641.970409][   T73] 
[ 1641.972653][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1641.972653][   T73]      netdev_get_by_index+0x5e/0x80
[ 1641.972653][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1641.972653][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1641.972653][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1641.972653][   T73]      ipv6_add_addr+0x411/0x2000
[ 1641.972653][   T73]      inet6_addr_add+0x30e/0xa40
[ 1641.972653][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1641.972653][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1641.972653][   T73]      netlink_rcv_skb+0x130/0x360
[ 1641.972653][   T73]      netlink_unicast+0x449/0x710
[ 1641.972653][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1641.972653][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1641.972653][   T73]      ___sys_sendmsg+0xee/0x170
[ 1641.972653][   T73]      __sys_sendmsg+0xcd/0x170
[ 1641.972653][   T73]      do_syscall_64+0xc6/0x1e0
[ 1641.972653][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1641.972653][   T73] 
[ 1641.974973][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1641.974973][   T73]      netdev_get_by_index+0x5e/0x80
[ 1641.974973][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1641.974973][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1641.974973][   T73]      ip6_route_add+0x1c/0x140
[ 1641.974973][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1641.974973][   T73]      addrconf_add_dev+0xe2/0x170
[ 1641.974973][   T73]      inet6_addr_add+0x12f/0xa40
[ 1641.974973][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1641.974973][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1641.974973][   T73]      netlink_rcv_skb+0x130/0x360
[ 1641.974973][   T73]      netlink_unicast+0x449/0x710
[ 1641.974973][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1641.974973][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1641.974973][   T73]      ___sys_sendmsg+0xee/0x170
[ 1641.974973][   T73]      __sys_sendmsg+0xcd/0x170
[ 1641.974973][   T73]      do_syscall_64+0xc6/0x1e0
[ 1641.974973][   T73] 
[ 1641.977195][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1641.977195][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1641.977195][   T73]      ipv6_find_idev+0x102/0x170
[ 1641.977195][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1641.977195][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1641.977195][   T73]      netlink_rcv_skb+0x130/0x360
[ 1641.977195][   T73]      netlink_unicast+0x449/0x710
[ 1641.977195][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1641.977195][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1641.977195][   T73]      ___sys_sendmsg+0xee/0x170
[ 1641.977195][   T73]      __sys_sendmsg+0xcd/0x170
[ 1641.977195][   T73]      do_syscall_64+0xc6/0x1e0
[ 1641.977195][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1641.977195][   T73] 
[ 1641.978918][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1641.978918][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1641.978918][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1641.978918][   T73]      ipv6_find_idev+0x102/0x170
[ 1641.978918][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1641.978918][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1641.978918][   T73]      netlink_rcv_skb+0x130/0x360
[ 1641.978918][   T73]      netlink_unicast+0x449/0x710
[ 1641.978918][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1641.978918][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1641.978918][   T73]      ___sys_sendmsg+0xee/0x170
[ 1641.978918][   T73]      __sys_sendmsg+0xcd/0x170
[ 1641.978918][   T73]      do_syscall_64+0xc6/0x1e0
[ 1641.978918][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1641.978918][   T73] 
[ 1641.980789][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1641.981076][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1641.981076][   T73]      netdev_get_by_index+0x5e/0x80
[ 1641.981076][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1641.981076][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1641.981076][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1641.981076][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1641.981076][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1641.981076][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1641.981076][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1641.981076][   T73]      addrconf_dad_begin+0x310/0x670
[ 1641.981076][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1641.981076][   T73]      process_one_work+0x84d/0x18a0
[ 1641.981076][   T73]      worker_thread+0x587/0xd30
[ 1641.981076][   T73]      kthread+0x28a/0x350
[ 1641.981076][   T73]      ret_from_fork+0x31/0x70
[ 1641.981076][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1641.981076][   T73] 
[ 1641.983238][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1641.983238][   T73]      netdev_get_by_index+0x5e/0x80
[ 1641.983238][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1641.983238][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1641.983238][   T73]      ip6_route_add+0x1c/0x140
[ 1641.983238][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1641.983238][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1641.983238][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1641.983238][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1641.983238][   T73]      netlink_rcv_skb+0x130/0x360
[ 1641.983238][   T73]      netlink_unicast+0x449/0x710
[ 1641.983238][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1641.983238][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1641.983238][   T73]      ___sys_sendmsg+0xee/0x170
[ 1641.983238][   T73]      __sys_sendmsg+0xcd/0x170
[ 1641.983238][   T73]      do_syscall_64+0xc6/0x1e0
[ 1641.983238][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1641.983238][   T73] 
[ 1641.985713][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1641.985713][   T73]      netdev_get_by_index+0x5e/0x80
[ 1641.985713][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1641.985713][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1641.985713][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1641.985713][   T73]      ipv6_add_addr+0x411/0x2000
[ 1641.985713][   T73]      inet6_addr_add+0x30e/0xa40
[ 1641.985713][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1641.985713][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1641.985713][   T73]      netlink_rcv_skb+0x130/0x360
[ 1641.985713][   T73]      netlink_unicast+0x449/0x710
[ 1641.985713][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1641.985713][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1641.985713][   T73]      ___sys_sendmsg+0xee/0x170
[ 1641.985713][   T73]      __sys_sendmsg+0xcd/0x170
[ 1641.985713][   T73]      do_syscall_64+0xc6/0x1e0
[ 1641.985713][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1641.985713][   T73] 
[ 1641.988173][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1641.988173][   T73]      netdev_get_by_index+0x5e/0x80
[ 1641.988173][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1641.988173][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1641.988173][   T73]      ip6_route_add+0x1c/0x140
[ 1641.988173][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1641.988173][   T73]      addrconf_add_dev+0xe2/0x170
[ 1641.988173][   T73]      inet6_addr_add+0x12f/0xa40
[ 1641.988173][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1641.988173][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1641.988173][   T73]      netlink_rcv_skb+0x130/0x360
[ 1641.988173][   T73]      netlink_unicast+0x449/0x710
[ 1641.988173][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1641.988173][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1641.988173][   T73]      ___sys_sendmsg+0xee/0x170
[ 1641.988173][   T73]      __sys_sendmsg+0xcd/0x170
[ 1641.988173][   T73]      do_syscall_64+0xc6/0x1e0
[ 1641.988173][   T73] 
[ 1641.990601][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1641.990601][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1641.990601][   T73]      ipv6_find_idev+0x102/0x170
[ 1641.990601][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1641.990601][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1641.990601][   T73]      netlink_rcv_skb+0x130/0x360
[ 1641.990601][   T73]      netlink_unicast+0x449/0x710
[ 1641.990601][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1641.990601][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1641.990601][   T73]      ___sys_sendmsg+0xee/0x170
[ 1641.990601][   T73]      __sys_sendmsg+0xcd/0x170
[ 1641.990601][   T73]      do_syscall_64+0xc6/0x1e0
[ 1641.990601][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1641.990601][   T73] 
[ 1641.992404][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1641.992404][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1641.992404][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1641.992404][   T73]      ipv6_find_idev+0x102/0x170
[ 1641.992404][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1641.992404][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1641.992404][   T73]      netlink_rcv_skb+0x130/0x360
[ 1641.992404][   T73]      netlink_unicast+0x449/0x710
[ 1641.992404][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1641.992404][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1641.992404][   T73]      ___sys_sendmsg+0xee/0x170
[ 1641.992404][   T73]      __sys_sendmsg+0xcd/0x170
[ 1641.992404][   T73]      do_syscall_64+0xc6/0x1e0
[ 1641.992404][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1641.992404][   T73] 
[ 1652.231762][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1652.232300][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1652.232300][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1652.232300][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1652.232300][   T73]      fib6_nh_init+0xa22/0x1580
[ 1652.232300][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1652.232300][   T73]      ip6_route_add+0x1c/0x140
[ 1652.232300][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1652.232300][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1652.232300][   T73]      netlink_rcv_skb+0x130/0x360
[ 1652.232300][   T73]      netlink_unicast+0x449/0x710
[ 1652.232300][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1652.232300][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1652.232300][   T73]      ___sys_sendmsg+0xee/0x170
[ 1652.232300][   T73]      __sys_sendmsg+0xcd/0x170
[ 1652.232300][   T73]      do_syscall_64+0xc6/0x1e0
[ 1652.232300][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1652.232300][   T73] 
[ 1652.235315][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1652.235315][   T73]      dst_init+0x84/0x4a0
[ 1652.235315][   T73]      dst_alloc+0x97/0x150
[ 1652.235315][   T73]      ip6_dst_alloc+0x23/0x90
[ 1652.235315][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1652.235315][   T73]      ip6_pol_route+0x56f/0x840
[ 1652.235315][   T73]      fib6_rule_lookup+0x456/0x630
[ 1652.235315][   T73]      ip6_route_input+0x59c/0xa50
[ 1652.235315][   T73]      ipv6_rcv+0x397/0x810
[ 1652.235315][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1652.235315][   T73]      process_backlog+0x101/0x620
[ 1652.235315][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1652.235315][   T73]      net_rx_action+0x495/0xbe0
[ 1652.235315][   T73]      __do_softirq+0x1b5/0x7f6
[ 1652.235315][   T73] 
[ 1652.237251][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1652.237251][   T73]      netdev_get_by_index+0x5e/0x80
[ 1652.237251][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1652.237251][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1652.237251][   T73]      ip6_route_add+0x1c/0x140
[ 1652.237251][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1652.237251][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1652.237251][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1652.237251][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1652.237251][   T73]      netlink_rcv_skb+0x130/0x360
[ 1652.237251][   T73]      netlink_unicast+0x449/0x710
[ 1652.237251][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1652.237251][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1652.237251][   T73]      ___sys_sendmsg+0xee/0x170
[ 1652.237251][   T73]      __sys_sendmsg+0xcd/0x170
[ 1652.237251][   T73]      do_syscall_64+0xc6/0x1e0
[ 1652.237251][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1652.237251][   T73] 
[ 1652.239632][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1652.239632][   T73]      netdev_get_by_index+0x5e/0x80
[ 1652.239632][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1652.239632][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1652.239632][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1652.239632][   T73]      ipv6_add_addr+0x411/0x2000
[ 1652.239632][   T73]      inet6_addr_add+0x30e/0xa40
[ 1652.239632][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1652.239632][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1652.239632][   T73]      netlink_rcv_skb+0x130/0x360
[ 1652.239632][   T73]      netlink_unicast+0x449/0x710
[ 1652.239632][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1652.239632][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1652.239632][   T73]      ___sys_sendmsg+0xee/0x170
[ 1652.239632][   T73]      __sys_sendmsg+0xcd/0x170
[ 1652.239632][   T73]      do_syscall_64+0xc6/0x1e0
[ 1652.239632][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1652.239632][   T73] 
[ 1652.241850][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1652.241850][   T73]      netdev_get_by_index+0x5e/0x80
[ 1652.241850][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1652.241850][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1652.241850][   T73]      ip6_route_add+0x1c/0x140
[ 1652.241850][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1652.241850][   T73]      addrconf_add_dev+0xe2/0x170
[ 1652.241850][   T73]      inet6_addr_add+0x12f/0xa40
[ 1652.241850][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1652.241850][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1652.241850][   T73]      netlink_rcv_skb+0x130/0x360
[ 1652.241850][   T73]      netlink_unicast+0x449/0x710
[ 1652.241850][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1652.241850][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1652.241850][   T73]      ___sys_sendmsg+0xee/0x170
[ 1652.241850][   T73]      __sys_sendmsg+0xcd/0x170
[ 1652.241850][   T73]      do_syscall_64+0xc6/0x1e0
[ 1652.241850][   T73] 
[ 1652.244034][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1652.244034][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1652.244034][   T73]      ipv6_find_idev+0x102/0x170
[ 1652.244034][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1652.244034][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1652.244034][   T73]      netlink_rcv_skb+0x130/0x360
[ 1652.244034][   T73]      netlink_unicast+0x449/0x710
[ 1652.244034][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1652.244034][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1652.244034][   T73]      ___sys_sendmsg+0xee/0x170
[ 1652.244034][   T73]      __sys_sendmsg+0xcd/0x170
[ 1652.244034][   T73]      do_syscall_64+0xc6/0x1e0
[ 1652.244034][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1652.244034][   T73] 
[ 1652.245734][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1652.245734][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1652.245734][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1652.245734][   T73]      ipv6_find_idev+0x102/0x170
[ 1652.245734][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1652.245734][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1652.245734][   T73]      netlink_rcv_skb+0x130/0x360
[ 1652.245734][   T73]      netlink_unicast+0x449/0x710
[ 1652.245734][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1652.245734][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1652.245734][   T73]      ___sys_sendmsg+0xee/0x170
[ 1652.245734][   T73]      __sys_sendmsg+0xcd/0x170
[ 1652.245734][   T73]      do_syscall_64+0xc6/0x1e0
[ 1652.245734][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1652.245734][   T73] 
[ 1652.247615][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1652.247935][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1652.247935][   T73]      netdev_get_by_index+0x5e/0x80
[ 1652.247935][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1652.247935][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1652.247935][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1652.247935][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1652.247935][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1652.247935][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1652.247935][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1652.247935][   T73]      addrconf_dad_begin+0x310/0x670
[ 1652.247935][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1652.247935][   T73]      process_one_work+0x84d/0x18a0
[ 1652.247935][   T73]      worker_thread+0x587/0xd30
[ 1652.247935][   T73]      kthread+0x28a/0x350
[ 1652.247935][   T73]      ret_from_fork+0x31/0x70
[ 1652.247935][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1652.247935][   T73] 
[ 1652.250093][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1652.250093][   T73]      netdev_get_by_index+0x5e/0x80
[ 1652.250093][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1652.250093][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1652.250093][   T73]      ip6_route_add+0x1c/0x140
[ 1652.250093][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1652.250093][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1652.250093][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1652.250093][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1652.250093][   T73]      netlink_rcv_skb+0x130/0x360
[ 1652.250093][   T73]      netlink_unicast+0x449/0x710
[ 1652.250093][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1652.250093][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1652.250093][   T73]      ___sys_sendmsg+0xee/0x170
[ 1652.250093][   T73]      __sys_sendmsg+0xcd/0x170
[ 1652.250093][   T73]      do_syscall_64+0xc6/0x1e0
[ 1652.250093][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1652.250093][   T73] 
[ 1652.252308][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1652.252308][   T73]      netdev_get_by_index+0x5e/0x80
[ 1652.252308][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1652.252308][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1652.252308][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1652.252308][   T73]      ipv6_add_addr+0x411/0x2000
[ 1652.252308][   T73]      inet6_addr_add+0x30e/0xa40
[ 1652.252308][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1652.252308][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1652.252308][   T73]      netlink_rcv_skb+0x130/0x360
[ 1652.252308][   T73]      netlink_unicast+0x449/0x710
[ 1652.252308][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1652.252308][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1652.252308][   T73]      ___sys_sendmsg+0xee/0x170
[ 1652.252308][   T73]      __sys_sendmsg+0xcd/0x170
[ 1652.252308][   T73]      do_syscall_64+0xc6/0x1e0
[ 1652.252308][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1652.252308][   T73] 
[ 1652.254617][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1652.254617][   T73]      netdev_get_by_index+0x5e/0x80
[ 1652.254617][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1652.254617][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1652.254617][   T73]      ip6_route_add+0x1c/0x140
[ 1652.254617][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1652.254617][   T73]      addrconf_add_dev+0xe2/0x170
[ 1652.254617][   T73]      inet6_addr_add+0x12f/0xa40
[ 1652.254617][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1652.254617][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1652.254617][   T73]      netlink_rcv_skb+0x130/0x360
[ 1652.254617][   T73]      netlink_unicast+0x449/0x710
[ 1652.254617][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1652.254617][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1652.254617][   T73]      ___sys_sendmsg+0xee/0x170
[ 1652.254617][   T73]      __sys_sendmsg+0xcd/0x170
[ 1652.254617][   T73]      do_syscall_64+0xc6/0x1e0
[ 1652.254617][   T73] 
[ 1652.256784][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1652.256784][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1652.256784][   T73]      ipv6_find_idev+0x102/0x170
[ 1652.256784][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1652.256784][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1652.256784][   T73]      netlink_rcv_skb+0x130/0x360
[ 1652.256784][   T73]      netlink_unicast+0x449/0x710
[ 1652.256784][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1652.256784][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1652.256784][   T73]      ___sys_sendmsg+0xee/0x170
[ 1652.256784][   T73]      __sys_sendmsg+0xcd/0x170
[ 1652.256784][   T73]      do_syscall_64+0xc6/0x1e0
[ 1652.256784][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1652.256784][   T73] 
[ 1652.258519][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1652.258519][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1652.258519][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1652.258519][   T73]      ipv6_find_idev+0x102/0x170
[ 1652.258519][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1652.258519][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1652.258519][   T73]      netlink_rcv_skb+0x130/0x360
[ 1652.258519][   T73]      netlink_unicast+0x449/0x710
[ 1652.258519][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1652.258519][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1652.258519][   T73]      ___sys_sendmsg+0xee/0x170
[ 1652.258519][   T73]      __sys_sendmsg+0xcd/0x170
[ 1652.258519][   T73]      do_syscall_64+0xc6/0x1e0
[ 1652.258519][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1652.258519][   T73] 
[ 1652.260380][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1652.260682][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1652.260682][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1652.260682][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1652.260682][   T73]      fib6_nh_init+0xa22/0x1580
[ 1652.260682][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1652.260682][   T73]      ip6_route_add+0x1c/0x140
[ 1652.260682][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1652.260682][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1652.260682][   T73]      netlink_rcv_skb+0x130/0x360
[ 1652.260682][   T73]      netlink_unicast+0x449/0x710
[ 1652.260682][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1652.260682][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1652.260682][   T73]      ___sys_sendmsg+0xee/0x170
[ 1652.260682][   T73]      __sys_sendmsg+0xcd/0x170
[ 1652.260682][   T73]      do_syscall_64+0xc6/0x1e0
[ 1652.260682][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1652.260682][   T73] 
[ 1652.262920][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1652.262920][   T73]      dst_init+0x84/0x4a0
[ 1652.262920][   T73]      dst_alloc+0x97/0x150
[ 1652.262920][   T73]      ip6_dst_alloc+0x23/0x90
[ 1652.262920][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1652.262920][   T73]      ip6_pol_route+0x56f/0x840
[ 1652.262920][   T73]      fib6_rule_lookup+0x456/0x630
[ 1652.262920][   T73]      ip6_route_input+0x59c/0xa50
[ 1652.262920][   T73]      ipv6_rcv+0x397/0x810
[ 1652.262920][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1652.262920][   T73]      process_backlog+0x101/0x620
[ 1652.262920][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1652.262920][   T73]      net_rx_action+0x495/0xbe0
[ 1652.262920][   T73]      __do_softirq+0x1b5/0x7f6
[ 1652.262920][   T73] 
[ 1652.264961][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1652.264961][   T73]      netdev_get_by_index+0x5e/0x80
[ 1652.264961][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1652.264961][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1652.264961][   T73]      ip6_route_add+0x1c/0x140
[ 1652.264961][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1652.264961][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1652.264961][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1652.264961][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1652.264961][   T73]      netlink_rcv_skb+0x130/0x360
[ 1652.264961][   T73]      netlink_unicast+0x449/0x710
[ 1652.264961][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1652.264961][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1652.264961][   T73]      ___sys_sendmsg+0xee/0x170
[ 1652.264961][   T73]      __sys_sendmsg+0xcd/0x170
[ 1652.264961][   T73]      do_syscall_64+0xc6/0x1e0
[ 1652.264961][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1652.264961][   T73] 
[ 1652.267356][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1652.267356][   T73]      netdev_get_by_index+0x5e/0x80
[ 1652.267356][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1652.267356][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1652.267356][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1652.267356][   T73]      ipv6_add_addr+0x411/0x2000
[ 1652.267356][   T73]      inet6_addr_add+0x30e/0xa40
[ 1652.267356][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1652.267356][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1652.267356][   T73]      netlink_rcv_skb+0x130/0x360
[ 1652.267356][   T73]      netlink_unicast+0x449/0x710
[ 1652.267356][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1652.267356][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1652.267356][   T73]      ___sys_sendmsg+0xee/0x170
[ 1652.267356][   T73]      __sys_sendmsg+0xcd/0x170
[ 1652.267356][   T73]      do_syscall_64+0xc6/0x1e0
[ 1652.267356][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1652.267356][   T73] 
[ 1652.269729][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1652.269729][   T73]      netdev_get_by_index+0x5e/0x80
[ 1652.269729][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1652.269729][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1652.269729][   T73]      ip6_route_add+0x1c/0x140
[ 1652.269729][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1652.269729][   T73]      addrconf_add_dev+0xe2/0x170
[ 1652.269729][   T73]      inet6_addr_add+0x12f/0xa40
[ 1652.269729][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1652.269729][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1652.269729][   T73]      netlink_rcv_skb+0x130/0x360
[ 1652.269729][   T73]      netlink_unicast+0x449/0x710
[ 1652.269729][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1652.269729][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1652.269729][   T73]      ___sys_sendmsg+0xee/0x170
[ 1652.269729][   T73]      __sys_sendmsg+0xcd/0x170
[ 1652.269729][   T73]      do_syscall_64+0xc6/0x1e0
[ 1652.269729][   T73] 
[ 1652.272119][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1652.272119][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1652.272119][   T73]      ipv6_find_idev+0x102/0x170
[ 1652.272119][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1652.272119][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1652.272119][   T73]      netlink_rcv_skb+0x130/0x360
[ 1652.272119][   T73]      netlink_unicast+0x449/0x710
[ 1652.272119][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1652.272119][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1652.272119][   T73]      ___sys_sendmsg+0xee/0x170
[ 1652.272119][   T73]      __sys_sendmsg+0xcd/0x170
[ 1652.272119][   T73]      do_syscall_64+0xc6/0x1e0
[ 1652.272119][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1652.272119][   T73] 
[ 1652.274047][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1652.274047][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1652.274047][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1652.274047][   T73]      ipv6_find_idev+0x102/0x170
[ 1652.274047][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1652.274047][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1652.274047][   T73]      netlink_rcv_skb+0x130/0x360
[ 1652.274047][   T73]      netlink_unicast+0x449/0x710
[ 1652.274047][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1652.274047][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1652.274047][   T73]      ___sys_sendmsg+0xee/0x170
[ 1652.274047][   T73]      __sys_sendmsg+0xcd/0x170
[ 1652.274047][   T73]      do_syscall_64+0xc6/0x1e0
[ 1652.274047][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1652.274047][   T73] 
[ 1652.275920][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1652.276280][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1652.276280][   T73]      netdev_get_by_index+0x5e/0x80
[ 1652.276280][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1652.276280][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1652.276280][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1652.276280][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1652.276280][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1652.276280][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1652.276280][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1652.276280][   T73]      addrconf_dad_begin+0x310/0x670
[ 1652.276280][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1652.276280][   T73]      process_one_work+0x84d/0x18a0
[ 1652.276280][   T73]      worker_thread+0x587/0xd30
[ 1652.276280][   T73]      kthread+0x28a/0x350
[ 1652.276280][   T73]      ret_from_fork+0x31/0x70
[ 1652.276280][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1652.276280][   T73] 
[ 1652.278443][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1652.278443][   T73]      netdev_get_by_index+0x5e/0x80
[ 1652.278443][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1652.278443][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1652.278443][   T73]      ip6_route_add+0x1c/0x140
[ 1652.278443][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1652.278443][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1652.278443][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1652.278443][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1652.278443][   T73]      netlink_rcv_skb+0x130/0x360
[ 1652.278443][   T73]      netlink_unicast+0x449/0x710
[ 1652.278443][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1652.278443][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1652.278443][   T73]      ___sys_sendmsg+0xee/0x170
[ 1652.278443][   T73]      __sys_sendmsg+0xcd/0x170
[ 1652.278443][   T73]      do_syscall_64+0xc6/0x1e0
[ 1652.278443][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1652.278443][   T73] 
[ 1652.280684][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1652.280684][   T73]      netdev_get_by_index+0x5e/0x80
[ 1652.280684][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1652.280684][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1652.280684][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1652.280684][   T73]      ipv6_add_addr+0x411/0x2000
[ 1652.280684][   T73]      inet6_addr_add+0x30e/0xa40
[ 1652.280684][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1652.280684][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1652.280684][   T73]      netlink_rcv_skb+0x130/0x360
[ 1652.280684][   T73]      netlink_unicast+0x449/0x710
[ 1652.280684][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1652.280684][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1652.280684][   T73]      ___sys_sendmsg+0xee/0x170
[ 1652.280684][   T73]      __sys_sendmsg+0xcd/0x170
[ 1652.280684][   T73]      do_syscall_64+0xc6/0x1e0
[ 1652.280684][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1652.280684][   T73] 
[ 1652.282917][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1652.282917][   T73]      netdev_get_by_index+0x5e/0x80
[ 1652.282917][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1652.282917][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1652.282917][   T73]      ip6_route_add+0x1c/0x140
[ 1652.282917][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1652.282917][   T73]      addrconf_add_dev+0xe2/0x170
[ 1652.282917][   T73]      inet6_addr_add+0x12f/0xa40
[ 1652.282917][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1652.282917][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1652.282917][   T73]      netlink_rcv_skb+0x130/0x360
[ 1652.282917][   T73]      netlink_unicast+0x449/0x710
[ 1652.282917][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1652.282917][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1652.282917][   T73]      ___sys_sendmsg+0xee/0x170
[ 1652.282917][   T73]      __sys_sendmsg+0xcd/0x170
[ 1652.282917][   T73]      do_syscall_64+0xc6/0x1e0
[ 1652.282917][   T73] 
[ 1652.285173][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1652.285173][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1652.285173][   T73]      ipv6_find_idev+0x102/0x170
[ 1652.285173][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1652.285173][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1652.285173][   T73]      netlink_rcv_skb+0x130/0x360
[ 1652.285173][   T73]      netlink_unicast+0x449/0x710
[ 1652.285173][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1652.285173][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1652.285173][   T73]      ___sys_sendmsg+0xee/0x170
[ 1652.285173][   T73]      __sys_sendmsg+0xcd/0x170
[ 1652.285173][   T73]      do_syscall_64+0xc6/0x1e0
[ 1652.285173][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1652.285173][   T73] 
[ 1652.286889][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1652.286889][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1652.286889][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1652.286889][   T73]      ipv6_find_idev+0x102/0x170
[ 1652.286889][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1652.286889][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1652.286889][   T73]      netlink_rcv_skb+0x130/0x360
[ 1652.286889][   T73]      netlink_unicast+0x449/0x710
[ 1652.286889][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1652.286889][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1652.286889][   T73]      ___sys_sendmsg+0xee/0x170
[ 1652.286889][   T73]      __sys_sendmsg+0xcd/0x170
[ 1652.286889][   T73]      do_syscall_64+0xc6/0x1e0
[ 1652.286889][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1652.286889][   T73] 
[ 1662.351791][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1662.352182][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1662.352182][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1662.352182][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1662.352182][   T73]      fib6_nh_init+0xa22/0x1580
[ 1662.352182][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1662.352182][   T73]      ip6_route_add+0x1c/0x140
[ 1662.352182][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1662.352182][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1662.352182][   T73]      netlink_rcv_skb+0x130/0x360
[ 1662.352182][   T73]      netlink_unicast+0x449/0x710
[ 1662.352182][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1662.352182][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1662.352182][   T73]      ___sys_sendmsg+0xee/0x170
[ 1662.352182][   T73]      __sys_sendmsg+0xcd/0x170
[ 1662.352182][   T73]      do_syscall_64+0xc6/0x1e0
[ 1662.352182][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1662.352182][   T73] 
[ 1662.354070][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1662.354070][   T73]      dst_init+0x84/0x4a0
[ 1662.354070][   T73]      dst_alloc+0x97/0x150
[ 1662.354070][   T73]      ip6_dst_alloc+0x23/0x90
[ 1662.354070][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1662.354070][   T73]      ip6_pol_route+0x56f/0x840
[ 1662.354070][   T73]      fib6_rule_lookup+0x456/0x630
[ 1662.354070][   T73]      ip6_route_input+0x59c/0xa50
[ 1662.354070][   T73]      ipv6_rcv+0x397/0x810
[ 1662.354070][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1662.354070][   T73]      process_backlog+0x101/0x620
[ 1662.354070][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1662.354070][   T73]      net_rx_action+0x495/0xbe0
[ 1662.354070][   T73]      __do_softirq+0x1b5/0x7f6
[ 1662.354070][   T73] 
[ 1662.355702][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1662.355702][   T73]      netdev_get_by_index+0x5e/0x80
[ 1662.355702][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1662.355702][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1662.355702][   T73]      ip6_route_add+0x1c/0x140
[ 1662.355702][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1662.355702][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1662.355702][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1662.355702][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1662.355702][   T73]      netlink_rcv_skb+0x130/0x360
[ 1662.355702][   T73]      netlink_unicast+0x449/0x710
[ 1662.355702][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1662.355702][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1662.355702][   T73]      ___sys_sendmsg+0xee/0x170
[ 1662.355702][   T73]      __sys_sendmsg+0xcd/0x170
[ 1662.355702][   T73]      do_syscall_64+0xc6/0x1e0
[ 1662.355702][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1662.355702][   T73] 
[ 1662.357715][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1662.357715][   T73]      netdev_get_by_index+0x5e/0x80
[ 1662.357715][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1662.357715][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1662.357715][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1662.357715][   T73]      ipv6_add_addr+0x411/0x2000
[ 1662.357715][   T73]      inet6_addr_add+0x30e/0xa40
[ 1662.357715][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1662.357715][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1662.357715][   T73]      netlink_rcv_skb+0x130/0x360
[ 1662.357715][   T73]      netlink_unicast+0x449/0x710
[ 1662.357715][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1662.357715][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1662.357715][   T73]      ___sys_sendmsg+0xee/0x170
[ 1662.357715][   T73]      __sys_sendmsg+0xcd/0x170
[ 1662.357715][   T73]      do_syscall_64+0xc6/0x1e0
[ 1662.357715][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1662.357715][   T73] 
[ 1662.359703][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1662.359703][   T73]      netdev_get_by_index+0x5e/0x80
[ 1662.359703][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1662.359703][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1662.359703][   T73]      ip6_route_add+0x1c/0x140
[ 1662.359703][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1662.359703][   T73]      addrconf_add_dev+0xe2/0x170
[ 1662.359703][   T73]      inet6_addr_add+0x12f/0xa40
[ 1662.359703][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1662.359703][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1662.359703][   T73]      netlink_rcv_skb+0x130/0x360
[ 1662.359703][   T73]      netlink_unicast+0x449/0x710
[ 1662.359703][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1662.359703][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1662.359703][   T73]      ___sys_sendmsg+0xee/0x170
[ 1662.359703][   T73]      __sys_sendmsg+0xcd/0x170
[ 1662.359703][   T73]      do_syscall_64+0xc6/0x1e0
[ 1662.359703][   T73] 
[ 1662.361657][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1662.361657][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1662.361657][   T73]      ipv6_find_idev+0x102/0x170
[ 1662.361657][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1662.361657][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1662.361657][   T73]      netlink_rcv_skb+0x130/0x360
[ 1662.361657][   T73]      netlink_unicast+0x449/0x710
[ 1662.361657][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1662.361657][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1662.361657][   T73]      ___sys_sendmsg+0xee/0x170
[ 1662.361657][   T73]      __sys_sendmsg+0xcd/0x170
[ 1662.361657][   T73]      do_syscall_64+0xc6/0x1e0
[ 1662.361657][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1662.361657][   T73] 
[ 1662.363186][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1662.363186][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1662.363186][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1662.363186][   T73]      ipv6_find_idev+0x102/0x170
[ 1662.363186][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1662.363186][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1662.363186][   T73]      netlink_rcv_skb+0x130/0x360
[ 1662.363186][   T73]      netlink_unicast+0x449/0x710
[ 1662.363186][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1662.363186][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1662.363186][   T73]      ___sys_sendmsg+0xee/0x170
[ 1662.363186][   T73]      __sys_sendmsg+0xcd/0x170
[ 1662.363186][   T73]      do_syscall_64+0xc6/0x1e0
[ 1662.363186][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1662.363186][   T73] 
[ 1662.364855][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1662.365127][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1662.365127][   T73]      netdev_get_by_index+0x5e/0x80
[ 1662.365127][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1662.365127][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1662.365127][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1662.365127][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1662.365127][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1662.365127][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1662.365127][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1662.365127][   T73]      addrconf_dad_begin+0x310/0x670
[ 1662.365127][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1662.365127][   T73]      process_one_work+0x84d/0x18a0
[ 1662.365127][   T73]      worker_thread+0x587/0xd30
[ 1662.365127][   T73]      kthread+0x28a/0x350
[ 1662.365127][   T73]      ret_from_fork+0x31/0x70
[ 1662.365127][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1662.365127][   T73] 
[ 1662.367035][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1662.367035][   T73]      netdev_get_by_index+0x5e/0x80
[ 1662.367035][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1662.367035][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1662.367035][   T73]      ip6_route_add+0x1c/0x140
[ 1662.367035][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1662.367035][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1662.367035][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1662.367035][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1662.367035][   T73]      netlink_rcv_skb+0x130/0x360
[ 1662.367035][   T73]      netlink_unicast+0x449/0x710
[ 1662.367035][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1662.367035][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1662.367035][   T73]      ___sys_sendmsg+0xee/0x170
[ 1662.367035][   T73]      __sys_sendmsg+0xcd/0x170
[ 1662.367035][   T73]      do_syscall_64+0xc6/0x1e0
[ 1662.367035][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1662.367035][   T73] 
[ 1662.369037][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1662.369037][   T73]      netdev_get_by_index+0x5e/0x80
[ 1662.369037][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1662.369037][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1662.369037][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1662.369037][   T73]      ipv6_add_addr+0x411/0x2000
[ 1662.369037][   T73]      inet6_addr_add+0x30e/0xa40
[ 1662.369037][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1662.369037][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1662.369037][   T73]      netlink_rcv_skb+0x130/0x360
[ 1662.369037][   T73]      netlink_unicast+0x449/0x710
[ 1662.369037][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1662.369037][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1662.369037][   T73]      ___sys_sendmsg+0xee/0x170
[ 1662.369037][   T73]      __sys_sendmsg+0xcd/0x170
[ 1662.369037][   T73]      do_syscall_64+0xc6/0x1e0
[ 1662.369037][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1662.369037][   T73] 
[ 1662.371016][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1662.371016][   T73]      netdev_get_by_index+0x5e/0x80
[ 1662.371016][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1662.371016][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1662.371016][   T73]      ip6_route_add+0x1c/0x140
[ 1662.371016][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1662.371016][   T73]      addrconf_add_dev+0xe2/0x170
[ 1662.371016][   T73]      inet6_addr_add+0x12f/0xa40
[ 1662.371016][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1662.371016][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1662.371016][   T73]      netlink_rcv_skb+0x130/0x360
[ 1662.371016][   T73]      netlink_unicast+0x449/0x710
[ 1662.371016][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1662.371016][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1662.371016][   T73]      ___sys_sendmsg+0xee/0x170
[ 1662.371016][   T73]      __sys_sendmsg+0xcd/0x170
[ 1662.371016][   T73]      do_syscall_64+0xc6/0x1e0
[ 1662.371016][   T73] 
[ 1662.372967][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1662.372967][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1662.372967][   T73]      ipv6_find_idev+0x102/0x170
[ 1662.372967][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1662.372967][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1662.372967][   T73]      netlink_rcv_skb+0x130/0x360
[ 1662.372967][   T73]      netlink_unicast+0x449/0x710
[ 1662.372967][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1662.372967][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1662.372967][   T73]      ___sys_sendmsg+0xee/0x170
[ 1662.372967][   T73]      __sys_sendmsg+0xcd/0x170
[ 1662.372967][   T73]      do_syscall_64+0xc6/0x1e0
[ 1662.372967][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1662.372967][   T73] 
[ 1662.374588][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1662.374588][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1662.374588][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1662.374588][   T73]      ipv6_find_idev+0x102/0x170
[ 1662.374588][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1662.374588][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1662.374588][   T73]      netlink_rcv_skb+0x130/0x360
[ 1662.374588][   T73]      netlink_unicast+0x449/0x710
[ 1662.374588][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1662.374588][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1662.374588][   T73]      ___sys_sendmsg+0xee/0x170
[ 1662.374588][   T73]      __sys_sendmsg+0xcd/0x170
[ 1662.374588][   T73]      do_syscall_64+0xc6/0x1e0
[ 1662.374588][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1662.374588][   T73] 
[ 1662.376269][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1662.376535][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1662.376535][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1662.376535][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1662.376535][   T73]      fib6_nh_init+0xa22/0x1580
[ 1662.376535][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1662.376535][   T73]      ip6_route_add+0x1c/0x140
[ 1662.376535][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1662.376535][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1662.376535][   T73]      netlink_rcv_skb+0x130/0x360
[ 1662.376535][   T73]      netlink_unicast+0x449/0x710
[ 1662.376535][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1662.376535][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1662.376535][   T73]      ___sys_sendmsg+0xee/0x170
[ 1662.376535][   T73]      __sys_sendmsg+0xcd/0x170
[ 1662.376535][   T73]      do_syscall_64+0xc6/0x1e0
[ 1662.376535][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1662.376535][   T73] 
[ 1662.378594][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1662.378594][   T73]      dst_init+0x84/0x4a0
[ 1662.378594][   T73]      dst_alloc+0x97/0x150
[ 1662.378594][   T73]      ip6_dst_alloc+0x23/0x90
[ 1662.378594][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1662.378594][   T73]      ip6_pol_route+0x56f/0x840
[ 1662.378594][   T73]      fib6_rule_lookup+0x456/0x630
[ 1662.378594][   T73]      ip6_route_input+0x59c/0xa50
[ 1662.378594][   T73]      ipv6_rcv+0x397/0x810
[ 1662.378594][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1662.378594][   T73]      process_backlog+0x101/0x620
[ 1662.378594][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1662.378594][   T73]      net_rx_action+0x495/0xbe0
[ 1662.378594][   T73]      __do_softirq+0x1b5/0x7f6
[ 1662.378594][   T73] 
[ 1662.380412][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1662.380412][   T73]      netdev_get_by_index+0x5e/0x80
[ 1662.380412][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1662.380412][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1662.380412][   T73]      ip6_route_add+0x1c/0x140
[ 1662.380412][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1662.380412][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1662.380412][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1662.380412][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1662.380412][   T73]      netlink_rcv_skb+0x130/0x360
[ 1662.380412][   T73]      netlink_unicast+0x449/0x710
[ 1662.380412][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1662.380412][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1662.380412][   T73]      ___sys_sendmsg+0xee/0x170
[ 1662.380412][   T73]      __sys_sendmsg+0xcd/0x170
[ 1662.380412][   T73]      do_syscall_64+0xc6/0x1e0
[ 1662.380412][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1662.380412][   T73] 
[ 1662.382589][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1662.382589][   T73]      netdev_get_by_index+0x5e/0x80
[ 1662.382589][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1662.382589][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1662.382589][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1662.382589][   T73]      ipv6_add_addr+0x411/0x2000
[ 1662.382589][   T73]      inet6_addr_add+0x30e/0xa40
[ 1662.382589][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1662.382589][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1662.382589][   T73]      netlink_rcv_skb+0x130/0x360
[ 1662.382589][   T73]      netlink_unicast+0x449/0x710
[ 1662.382589][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1662.382589][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1662.382589][   T73]      ___sys_sendmsg+0xee/0x170
[ 1662.382589][   T73]      __sys_sendmsg+0xcd/0x170
[ 1662.382589][   T73]      do_syscall_64+0xc6/0x1e0
[ 1662.382589][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1662.382589][   T73] 
[ 1662.384883][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1662.384883][   T73]      netdev_get_by_index+0x5e/0x80
[ 1662.384883][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1662.384883][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1662.384883][   T73]      ip6_route_add+0x1c/0x140
[ 1662.384883][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1662.384883][   T73]      addrconf_add_dev+0xe2/0x170
[ 1662.384883][   T73]      inet6_addr_add+0x12f/0xa40
[ 1662.384883][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1662.384883][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1662.384883][   T73]      netlink_rcv_skb+0x130/0x360
[ 1662.384883][   T73]      netlink_unicast+0x449/0x710
[ 1662.384883][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1662.384883][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1662.384883][   T73]      ___sys_sendmsg+0xee/0x170
[ 1662.384883][   T73]      __sys_sendmsg+0xcd/0x170
[ 1662.384883][   T73]      do_syscall_64+0xc6/0x1e0
[ 1662.384883][   T73] 
[ 1662.387088][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1662.387088][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1662.387088][   T73]      ipv6_find_idev+0x102/0x170
[ 1662.387088][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1662.387088][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1662.387088][   T73]      netlink_rcv_skb+0x130/0x360
[ 1662.387088][   T73]      netlink_unicast+0x449/0x710
[ 1662.387088][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1662.387088][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1662.387088][   T73]      ___sys_sendmsg+0xee/0x170
[ 1662.387088][   T73]      __sys_sendmsg+0xcd/0x170
[ 1662.387088][   T73]      do_syscall_64+0xc6/0x1e0
[ 1662.387088][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1662.387088][   T73] 
[ 1662.388974][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1662.388974][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1662.388974][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1662.388974][   T73]      ipv6_find_idev+0x102/0x170
[ 1662.388974][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1662.388974][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1662.388974][   T73]      netlink_rcv_skb+0x130/0x360
[ 1662.388974][   T73]      netlink_unicast+0x449/0x710
[ 1662.388974][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1662.388974][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1662.388974][   T73]      ___sys_sendmsg+0xee/0x170
[ 1662.388974][   T73]      __sys_sendmsg+0xcd/0x170
[ 1662.388974][   T73]      do_syscall_64+0xc6/0x1e0
[ 1662.388974][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1662.388974][   T73] 
[ 1662.390997][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1662.391352][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1662.391352][   T73]      netdev_get_by_index+0x5e/0x80
[ 1662.391352][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1662.391352][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1662.391352][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1662.391352][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1662.391352][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1662.391352][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1662.391352][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1662.391352][   T73]      addrconf_dad_begin+0x310/0x670
[ 1662.391352][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1662.391352][   T73]      process_one_work+0x84d/0x18a0
[ 1662.391352][   T73]      worker_thread+0x587/0xd30
[ 1662.391352][   T73]      kthread+0x28a/0x350
[ 1662.391352][   T73]      ret_from_fork+0x31/0x70
[ 1662.391352][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1662.391352][   T73] 
[ 1662.393649][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1662.393649][   T73]      netdev_get_by_index+0x5e/0x80
[ 1662.393649][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1662.393649][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1662.393649][   T73]      ip6_route_add+0x1c/0x140
[ 1662.393649][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1662.393649][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1662.393649][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1662.393649][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1662.393649][   T73]      netlink_rcv_skb+0x130/0x360
[ 1662.393649][   T73]      netlink_unicast+0x449/0x710
[ 1662.393649][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1662.393649][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1662.393649][   T73]      ___sys_sendmsg+0xee/0x170
[ 1662.393649][   T73]      __sys_sendmsg+0xcd/0x170
[ 1662.393649][   T73]      do_syscall_64+0xc6/0x1e0
[ 1662.393649][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1662.393649][   T73] 
[ 1662.396147][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1662.396147][   T73]      netdev_get_by_index+0x5e/0x80
[ 1662.396147][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1662.396147][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1662.396147][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1662.396147][   T73]      ipv6_add_addr+0x411/0x2000
[ 1662.396147][   T73]      inet6_addr_add+0x30e/0xa40
[ 1662.396147][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1662.396147][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1662.396147][   T73]      netlink_rcv_skb+0x130/0x360
[ 1662.396147][   T73]      netlink_unicast+0x449/0x710
[ 1662.396147][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1662.396147][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1662.396147][   T73]      ___sys_sendmsg+0xee/0x170
[ 1662.396147][   T73]      __sys_sendmsg+0xcd/0x170
[ 1662.396147][   T73]      do_syscall_64+0xc6/0x1e0
[ 1662.396147][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1662.396147][   T73] 
[ 1662.398595][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1662.398595][   T73]      netdev_get_by_index+0x5e/0x80
[ 1662.398595][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1662.398595][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1662.398595][   T73]      ip6_route_add+0x1c/0x140
[ 1662.398595][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1662.398595][   T73]      addrconf_add_dev+0xe2/0x170
[ 1662.398595][   T73]      inet6_addr_add+0x12f/0xa40
[ 1662.398595][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1662.398595][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1662.398595][   T73]      netlink_rcv_skb+0x130/0x360
[ 1662.398595][   T73]      netlink_unicast+0x449/0x710
[ 1662.398595][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1662.398595][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1662.398595][   T73]      ___sys_sendmsg+0xee/0x170
[ 1662.398595][   T73]      __sys_sendmsg+0xcd/0x170
[ 1662.398595][   T73]      do_syscall_64+0xc6/0x1e0
[ 1662.398595][   T73] 
[ 1662.400989][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1662.400989][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1662.400989][   T73]      ipv6_find_idev+0x102/0x170
[ 1662.400989][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1662.400989][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1662.400989][   T73]      netlink_rcv_skb+0x130/0x360
[ 1662.400989][   T73]      netlink_unicast+0x449/0x710
[ 1662.400989][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1662.400989][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1662.400989][   T73]      ___sys_sendmsg+0xee/0x170
[ 1662.400989][   T73]      __sys_sendmsg+0xcd/0x170
[ 1662.400989][   T73]      do_syscall_64+0xc6/0x1e0
[ 1662.400989][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1662.400989][   T73] 
[ 1662.402857][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1662.402857][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1662.402857][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1662.402857][   T73]      ipv6_find_idev+0x102/0x170
[ 1662.402857][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1662.402857][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1662.402857][   T73]      netlink_rcv_skb+0x130/0x360
[ 1662.402857][   T73]      netlink_unicast+0x449/0x710
[ 1662.402857][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1662.402857][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1662.402857][   T73]      ___sys_sendmsg+0xee/0x170
[ 1662.402857][   T73]      __sys_sendmsg+0xcd/0x170
[ 1662.402857][   T73]      do_syscall_64+0xc6/0x1e0
[ 1662.402857][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1662.402857][   T73] 
[ 1672.431725][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1672.432346][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1672.432346][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1672.432346][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1672.432346][   T73]      fib6_nh_init+0xa22/0x1580
[ 1672.432346][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1672.432346][   T73]      ip6_route_add+0x1c/0x140
[ 1672.432346][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1672.432346][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1672.432346][   T73]      netlink_rcv_skb+0x130/0x360
[ 1672.432346][   T73]      netlink_unicast+0x449/0x710
[ 1672.432346][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1672.432346][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1672.432346][   T73]      ___sys_sendmsg+0xee/0x170
[ 1672.432346][   T73]      __sys_sendmsg+0xcd/0x170
[ 1672.432346][   T73]      do_syscall_64+0xc6/0x1e0
[ 1672.432346][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1672.432346][   T73] 
[ 1672.435380][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1672.435380][   T73]      dst_init+0x84/0x4a0
[ 1672.435380][   T73]      dst_alloc+0x97/0x150
[ 1672.435380][   T73]      ip6_dst_alloc+0x23/0x90
[ 1672.435380][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1672.435380][   T73]      ip6_pol_route+0x56f/0x840
[ 1672.435380][   T73]      fib6_rule_lookup+0x456/0x630
[ 1672.435380][   T73]      ip6_route_input+0x59c/0xa50
[ 1672.435380][   T73]      ipv6_rcv+0x397/0x810
[ 1672.435380][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1672.435380][   T73]      process_backlog+0x101/0x620
[ 1672.435380][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1672.435380][   T73]      net_rx_action+0x495/0xbe0
[ 1672.435380][   T73]      __do_softirq+0x1b5/0x7f6
[ 1672.435380][   T73] 
[ 1672.438094][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1672.438094][   T73]      netdev_get_by_index+0x5e/0x80
[ 1672.438094][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1672.438094][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1672.438094][   T73]      ip6_route_add+0x1c/0x140
[ 1672.438094][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1672.438094][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1672.438094][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1672.438094][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1672.438094][   T73]      netlink_rcv_skb+0x130/0x360
[ 1672.438094][   T73]      netlink_unicast+0x449/0x710
[ 1672.438094][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1672.438094][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1672.438094][   T73]      ___sys_sendmsg+0xee/0x170
[ 1672.438094][   T73]      __sys_sendmsg+0xcd/0x170
[ 1672.438094][   T73]      do_syscall_64+0xc6/0x1e0
[ 1672.438094][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1672.438094][   T73] 
[ 1672.441411][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1672.441411][   T73]      netdev_get_by_index+0x5e/0x80
[ 1672.441411][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1672.441411][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1672.441411][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1672.441411][   T73]      ipv6_add_addr+0x411/0x2000
[ 1672.441411][   T73]      inet6_addr_add+0x30e/0xa40
[ 1672.441411][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1672.441411][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1672.441411][   T73]      netlink_rcv_skb+0x130/0x360
[ 1672.441411][   T73]      netlink_unicast+0x449/0x710
[ 1672.441411][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1672.441411][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1672.441411][   T73]      ___sys_sendmsg+0xee/0x170
[ 1672.441411][   T73]      __sys_sendmsg+0xcd/0x170
[ 1672.441411][   T73]      do_syscall_64+0xc6/0x1e0
[ 1672.441411][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1672.441411][   T73] 
[ 1672.444700][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1672.444700][   T73]      netdev_get_by_index+0x5e/0x80
[ 1672.444700][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1672.444700][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1672.444700][   T73]      ip6_route_add+0x1c/0x140
[ 1672.444700][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1672.444700][   T73]      addrconf_add_dev+0xe2/0x170
[ 1672.444700][   T73]      inet6_addr_add+0x12f/0xa40
[ 1672.444700][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1672.444700][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1672.444700][   T73]      netlink_rcv_skb+0x130/0x360
[ 1672.444700][   T73]      netlink_unicast+0x449/0x710
[ 1672.444700][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1672.444700][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1672.444700][   T73]      ___sys_sendmsg+0xee/0x170
[ 1672.444700][   T73]      __sys_sendmsg+0xcd/0x170
[ 1672.444700][   T73]      do_syscall_64+0xc6/0x1e0
[ 1672.444700][   T73] 
[ 1672.447961][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1672.447961][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1672.447961][   T73]      ipv6_find_idev+0x102/0x170
[ 1672.447961][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1672.447961][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1672.447961][   T73]      netlink_rcv_skb+0x130/0x360
[ 1672.447961][   T73]      netlink_unicast+0x449/0x710
[ 1672.447961][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1672.447961][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1672.447961][   T73]      ___sys_sendmsg+0xee/0x170
[ 1672.447961][   T73]      __sys_sendmsg+0xcd/0x170
[ 1672.447961][   T73]      do_syscall_64+0xc6/0x1e0
[ 1672.447961][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1672.447961][   T73] 
[ 1672.450515][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1672.450515][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1672.450515][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1672.450515][   T73]      ipv6_find_idev+0x102/0x170
[ 1672.450515][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1672.450515][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1672.450515][   T73]      netlink_rcv_skb+0x130/0x360
[ 1672.450515][   T73]      netlink_unicast+0x449/0x710
[ 1672.450515][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1672.450515][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1672.450515][   T73]      ___sys_sendmsg+0xee/0x170
[ 1672.450515][   T73]      __sys_sendmsg+0xcd/0x170
[ 1672.450515][   T73]      do_syscall_64+0xc6/0x1e0
[ 1672.450515][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1672.450515][   T73] 
[ 1672.453275][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1672.453695][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1672.453695][   T73]      netdev_get_by_index+0x5e/0x80
[ 1672.453695][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1672.453695][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1672.453695][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1672.453695][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1672.453695][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1672.453695][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1672.453695][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1672.453695][   T73]      addrconf_dad_begin+0x310/0x670
[ 1672.453695][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1672.453695][   T73]      process_one_work+0x84d/0x18a0
[ 1672.453695][   T73]      worker_thread+0x587/0xd30
[ 1672.453695][   T73]      kthread+0x28a/0x350
[ 1672.453695][   T73]      ret_from_fork+0x31/0x70
[ 1672.453695][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1672.453695][   T73] 
[ 1672.456686][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1672.456686][   T73]      netdev_get_by_index+0x5e/0x80
[ 1672.456686][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1672.456686][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1672.456686][   T73]      ip6_route_add+0x1c/0x140
[ 1672.456686][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1672.456686][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1672.456686][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1672.456686][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1672.456686][   T73]      netlink_rcv_skb+0x130/0x360
[ 1672.456686][   T73]      netlink_unicast+0x449/0x710
[ 1672.456686][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1672.456686][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1672.456686][   T73]      ___sys_sendmsg+0xee/0x170
[ 1672.456686][   T73]      __sys_sendmsg+0xcd/0x170
[ 1672.456686][   T73]      do_syscall_64+0xc6/0x1e0
[ 1672.456686][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1672.456686][   T73] 
[ 1672.459926][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1672.459926][   T73]      netdev_get_by_index+0x5e/0x80
[ 1672.459926][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1672.459926][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1672.459926][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1672.459926][   T73]      ipv6_add_addr+0x411/0x2000
[ 1672.459926][   T73]      inet6_addr_add+0x30e/0xa40
[ 1672.459926][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1672.459926][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1672.459926][   T73]      netlink_rcv_skb+0x130/0x360
[ 1672.459926][   T73]      netlink_unicast+0x449/0x710
[ 1672.459926][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1672.459926][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1672.459926][   T73]      ___sys_sendmsg+0xee/0x170
[ 1672.459926][   T73]      __sys_sendmsg+0xcd/0x170
[ 1672.459926][   T73]      do_syscall_64+0xc6/0x1e0
[ 1672.459926][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1672.459926][   T73] 
[ 1672.463206][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1672.463206][   T73]      netdev_get_by_index+0x5e/0x80
[ 1672.463206][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1672.463206][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1672.463206][   T73]      ip6_route_add+0x1c/0x140
[ 1672.463206][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1672.463206][   T73]      addrconf_add_dev+0xe2/0x170
[ 1672.463206][   T73]      inet6_addr_add+0x12f/0xa40
[ 1672.463206][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1672.463206][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1672.463206][   T73]      netlink_rcv_skb+0x130/0x360
[ 1672.463206][   T73]      netlink_unicast+0x449/0x710
[ 1672.463206][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1672.463206][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1672.463206][   T73]      ___sys_sendmsg+0xee/0x170
[ 1672.463206][   T73]      __sys_sendmsg+0xcd/0x170
[ 1672.463206][   T73]      do_syscall_64+0xc6/0x1e0
[ 1672.463206][   T73] 
[ 1672.466448][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1672.466448][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1672.466448][   T73]      ipv6_find_idev+0x102/0x170
[ 1672.466448][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1672.466448][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1672.466448][   T73]      netlink_rcv_skb+0x130/0x360
[ 1672.466448][   T73]      netlink_unicast+0x449/0x710
[ 1672.466448][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1672.466448][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1672.466448][   T73]      ___sys_sendmsg+0xee/0x170
[ 1672.466448][   T73]      __sys_sendmsg+0xcd/0x170
[ 1672.466448][   T73]      do_syscall_64+0xc6/0x1e0
[ 1672.466448][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1672.466448][   T73] 
[ 1672.468983][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1672.468983][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1672.468983][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1672.468983][   T73]      ipv6_find_idev+0x102/0x170
[ 1672.468983][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1672.468983][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1672.468983][   T73]      netlink_rcv_skb+0x130/0x360
[ 1672.468983][   T73]      netlink_unicast+0x449/0x710
[ 1672.468983][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1672.468983][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1672.468983][   T73]      ___sys_sendmsg+0xee/0x170
[ 1672.468983][   T73]      __sys_sendmsg+0xcd/0x170
[ 1672.468983][   T73]      do_syscall_64+0xc6/0x1e0
[ 1672.468983][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1672.468983][   T73] 
[ 1672.471800][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1672.472235][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1672.472235][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1672.472235][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1672.472235][   T73]      fib6_nh_init+0xa22/0x1580
[ 1672.472235][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1672.472235][   T73]      ip6_route_add+0x1c/0x140
[ 1672.472235][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1672.472235][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1672.472235][   T73]      netlink_rcv_skb+0x130/0x360
[ 1672.472235][   T73]      netlink_unicast+0x449/0x710
[ 1672.472235][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1672.472235][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1672.472235][   T73]      ___sys_sendmsg+0xee/0x170
[ 1672.472235][   T73]      __sys_sendmsg+0xcd/0x170
[ 1672.472235][   T73]      do_syscall_64+0xc6/0x1e0
[ 1672.472235][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1672.472235][   T73] 
[ 1672.475667][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1672.475667][   T73]      dst_init+0x84/0x4a0
[ 1672.475667][   T73]      dst_alloc+0x97/0x150
[ 1672.475667][   T73]      ip6_dst_alloc+0x23/0x90
[ 1672.475667][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1672.475667][   T73]      ip6_pol_route+0x56f/0x840
[ 1672.475667][   T73]      fib6_rule_lookup+0x456/0x630
[ 1672.475667][   T73]      ip6_route_input+0x59c/0xa50
[ 1672.475667][   T73]      ipv6_rcv+0x397/0x810
[ 1672.475667][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1672.475667][   T73]      process_backlog+0x101/0x620
[ 1672.475667][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1672.475667][   T73]      net_rx_action+0x495/0xbe0
[ 1672.475667][   T73]      __do_softirq+0x1b5/0x7f6
[ 1672.475667][   T73] 
[ 1672.478780][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1672.478780][   T73]      netdev_get_by_index+0x5e/0x80
[ 1672.478780][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1672.478780][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1672.478780][   T73]      ip6_route_add+0x1c/0x140
[ 1672.478780][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1672.478780][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1672.478780][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1672.478780][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1672.478780][   T73]      netlink_rcv_skb+0x130/0x360
[ 1672.478780][   T73]      netlink_unicast+0x449/0x710
[ 1672.478780][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1672.478780][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1672.478780][   T73]      ___sys_sendmsg+0xee/0x170
[ 1672.478780][   T73]      __sys_sendmsg+0xcd/0x170
[ 1672.478780][   T73]      do_syscall_64+0xc6/0x1e0
[ 1672.478780][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1672.478780][   T73] 
[ 1672.482266][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1672.482266][   T73]      netdev_get_by_index+0x5e/0x80
[ 1672.482266][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1672.482266][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1672.482266][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1672.482266][   T73]      ipv6_add_addr+0x411/0x2000
[ 1672.482266][   T73]      inet6_addr_add+0x30e/0xa40
[ 1672.482266][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1672.482266][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1672.482266][   T73]      netlink_rcv_skb+0x130/0x360
[ 1672.482266][   T73]      netlink_unicast+0x449/0x710
[ 1672.482266][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1672.482266][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1672.482266][   T73]      ___sys_sendmsg+0xee/0x170
[ 1672.482266][   T73]      __sys_sendmsg+0xcd/0x170
[ 1672.482266][   T73]      do_syscall_64+0xc6/0x1e0
[ 1672.482266][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1672.482266][   T73] 
[ 1672.485842][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1672.485842][   T73]      netdev_get_by_index+0x5e/0x80
[ 1672.485842][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1672.485842][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1672.485842][   T73]      ip6_route_add+0x1c/0x140
[ 1672.485842][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1672.485842][   T73]      addrconf_add_dev+0xe2/0x170
[ 1672.485842][   T73]      inet6_addr_add+0x12f/0xa40
[ 1672.485842][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1672.485842][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1672.485842][   T73]      netlink_rcv_skb+0x130/0x360
[ 1672.485842][   T73]      netlink_unicast+0x449/0x710
[ 1672.485842][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1672.485842][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1672.485842][   T73]      ___sys_sendmsg+0xee/0x170
[ 1672.485842][   T73]      __sys_sendmsg+0xcd/0x170
[ 1672.485842][   T73]      do_syscall_64+0xc6/0x1e0
[ 1672.485842][   T73] 
[ 1672.489359][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1672.489359][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1672.489359][   T73]      ipv6_find_idev+0x102/0x170
[ 1672.489359][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1672.489359][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1672.489359][   T73]      netlink_rcv_skb+0x130/0x360
[ 1672.489359][   T73]      netlink_unicast+0x449/0x710
[ 1672.489359][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1672.489359][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1672.489359][   T73]      ___sys_sendmsg+0xee/0x170
[ 1672.489359][   T73]      __sys_sendmsg+0xcd/0x170
[ 1672.489359][   T73]      do_syscall_64+0xc6/0x1e0
[ 1672.489359][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1672.489359][   T73] 
[ 1672.492280][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1672.492280][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1672.492280][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1672.492280][   T73]      ipv6_find_idev+0x102/0x170
[ 1672.492280][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1672.492280][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1672.492280][   T73]      netlink_rcv_skb+0x130/0x360
[ 1672.492280][   T73]      netlink_unicast+0x449/0x710
[ 1672.492280][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1672.492280][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1672.492280][   T73]      ___sys_sendmsg+0xee/0x170
[ 1672.492280][   T73]      __sys_sendmsg+0xcd/0x170
[ 1672.492280][   T73]      do_syscall_64+0xc6/0x1e0
[ 1672.492280][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1672.492280][   T73] 
[ 1672.495274][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1672.496626][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1672.496626][   T73]      netdev_get_by_index+0x5e/0x80
[ 1672.496626][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1672.496626][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1672.496626][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1672.496626][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1672.496626][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1672.496626][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1672.496626][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1672.496626][   T73]      addrconf_dad_begin+0x310/0x670
[ 1672.496626][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1672.496626][   T73]      process_one_work+0x84d/0x18a0
[ 1672.496626][   T73]      worker_thread+0x587/0xd30
[ 1672.496626][   T73]      kthread+0x28a/0x350
[ 1672.496626][   T73]      ret_from_fork+0x31/0x70
[ 1672.496626][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1672.496626][   T73] 
[ 1672.499753][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1672.499753][   T73]      netdev_get_by_index+0x5e/0x80
[ 1672.499753][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1672.499753][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1672.499753][   T73]      ip6_route_add+0x1c/0x140
[ 1672.499753][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1672.499753][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1672.499753][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1672.499753][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1672.499753][   T73]      netlink_rcv_skb+0x130/0x360
[ 1672.499753][   T73]      netlink_unicast+0x449/0x710
[ 1672.499753][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1672.499753][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1672.499753][   T73]      ___sys_sendmsg+0xee/0x170
[ 1672.499753][   T73]      __sys_sendmsg+0xcd/0x170
[ 1672.499753][   T73]      do_syscall_64+0xc6/0x1e0
[ 1672.499753][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1672.499753][   T73] 
[ 1672.503135][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1672.503135][   T73]      netdev_get_by_index+0x5e/0x80
[ 1672.503135][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1672.503135][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1672.503135][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1672.503135][   T73]      ipv6_add_addr+0x411/0x2000
[ 1672.503135][   T73]      inet6_addr_add+0x30e/0xa40
[ 1672.503135][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1672.503135][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1672.503135][   T73]      netlink_rcv_skb+0x130/0x360
[ 1672.503135][   T73]      netlink_unicast+0x449/0x710
[ 1672.503135][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1672.503135][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1672.503135][   T73]      ___sys_sendmsg+0xee/0x170
[ 1672.503135][   T73]      __sys_sendmsg+0xcd/0x170
[ 1672.503135][   T73]      do_syscall_64+0xc6/0x1e0
[ 1672.503135][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1672.503135][   T73] 
[ 1672.506838][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1672.506838][   T73]      netdev_get_by_index+0x5e/0x80
[ 1672.506838][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1672.506838][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1672.506838][   T73]      ip6_route_add+0x1c/0x140
[ 1672.506838][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1672.506838][   T73]      addrconf_add_dev+0xe2/0x170
[ 1672.506838][   T73]      inet6_addr_add+0x12f/0xa40
[ 1672.506838][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1672.506838][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1672.506838][   T73]      netlink_rcv_skb+0x130/0x360
[ 1672.506838][   T73]      netlink_unicast+0x449/0x710
[ 1672.506838][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1672.506838][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1672.506838][   T73]      ___sys_sendmsg+0xee/0x170
[ 1672.506838][   T73]      __sys_sendmsg+0xcd/0x170
[ 1672.506838][   T73]      do_syscall_64+0xc6/0x1e0
[ 1672.506838][   T73] 
[ 1672.510533][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1672.510533][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1672.510533][   T73]      ipv6_find_idev+0x102/0x170
[ 1672.510533][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1672.510533][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1672.510533][   T73]      netlink_rcv_skb+0x130/0x360
[ 1672.510533][   T73]      netlink_unicast+0x449/0x710
[ 1672.510533][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1672.510533][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1672.510533][   T73]      ___sys_sendmsg+0xee/0x170
[ 1672.510533][   T73]      __sys_sendmsg+0xcd/0x170
[ 1672.510533][   T73]      do_syscall_64+0xc6/0x1e0
[ 1672.510533][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1672.510533][   T73] 
[ 1672.513501][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1672.513501][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1672.513501][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1672.513501][   T73]      ipv6_find_idev+0x102/0x170
[ 1672.513501][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1672.513501][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1672.513501][   T73]      netlink_rcv_skb+0x130/0x360
[ 1672.513501][   T73]      netlink_unicast+0x449/0x710
[ 1672.513501][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1672.513501][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1672.513501][   T73]      ___sys_sendmsg+0xee/0x170
[ 1672.513501][   T73]      __sys_sendmsg+0xcd/0x170
[ 1672.513501][   T73]      do_syscall_64+0xc6/0x1e0
[ 1672.513501][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1672.513501][   T73] 
[ 1682.687753][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1682.688146][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1682.688146][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1682.688146][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1682.688146][   T73]      fib6_nh_init+0xa22/0x1580
[ 1682.688146][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1682.688146][   T73]      ip6_route_add+0x1c/0x140
[ 1682.688146][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1682.688146][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1682.688146][   T73]      netlink_rcv_skb+0x130/0x360
[ 1682.688146][   T73]      netlink_unicast+0x449/0x710
[ 1682.688146][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1682.688146][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1682.688146][   T73]      ___sys_sendmsg+0xee/0x170
[ 1682.688146][   T73]      __sys_sendmsg+0xcd/0x170
[ 1682.688146][   T73]      do_syscall_64+0xc6/0x1e0
[ 1682.688146][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1682.688146][   T73] 
[ 1682.690123][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1682.690123][   T73]      dst_init+0x84/0x4a0
[ 1682.690123][   T73]      dst_alloc+0x97/0x150
[ 1682.690123][   T73]      ip6_dst_alloc+0x23/0x90
[ 1682.690123][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1682.690123][   T73]      ip6_pol_route+0x56f/0x840
[ 1682.690123][   T73]      fib6_rule_lookup+0x456/0x630
[ 1682.690123][   T73]      ip6_route_input+0x59c/0xa50
[ 1682.690123][   T73]      ipv6_rcv+0x397/0x810
[ 1682.690123][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1682.690123][   T73]      process_backlog+0x101/0x620
[ 1682.690123][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1682.690123][   T73]      net_rx_action+0x495/0xbe0
[ 1682.690123][   T73]      __do_softirq+0x1b5/0x7f6
[ 1682.690123][   T73] 
[ 1682.691762][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1682.691762][   T73]      netdev_get_by_index+0x5e/0x80
[ 1682.691762][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1682.691762][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1682.691762][   T73]      ip6_route_add+0x1c/0x140
[ 1682.691762][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1682.691762][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1682.691762][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1682.691762][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1682.691762][   T73]      netlink_rcv_skb+0x130/0x360
[ 1682.691762][   T73]      netlink_unicast+0x449/0x710
[ 1682.691762][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1682.691762][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1682.691762][   T73]      ___sys_sendmsg+0xee/0x170
[ 1682.691762][   T73]      __sys_sendmsg+0xcd/0x170
[ 1682.691762][   T73]      do_syscall_64+0xc6/0x1e0
[ 1682.691762][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1682.691762][   T73] 
[ 1682.693748][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1682.693748][   T73]      netdev_get_by_index+0x5e/0x80
[ 1682.693748][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1682.693748][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1682.693748][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1682.693748][   T73]      ipv6_add_addr+0x411/0x2000
[ 1682.693748][   T73]      inet6_addr_add+0x30e/0xa40
[ 1682.693748][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1682.693748][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1682.693748][   T73]      netlink_rcv_skb+0x130/0x360
[ 1682.693748][   T73]      netlink_unicast+0x449/0x710
[ 1682.693748][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1682.693748][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1682.693748][   T73]      ___sys_sendmsg+0xee/0x170
[ 1682.693748][   T73]      __sys_sendmsg+0xcd/0x170
[ 1682.693748][   T73]      do_syscall_64+0xc6/0x1e0
[ 1682.693748][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1682.693748][   T73] 
[ 1682.695741][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1682.695741][   T73]      netdev_get_by_index+0x5e/0x80
[ 1682.695741][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1682.695741][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1682.695741][   T73]      ip6_route_add+0x1c/0x140
[ 1682.695741][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1682.695741][   T73]      addrconf_add_dev+0xe2/0x170
[ 1682.695741][   T73]      inet6_addr_add+0x12f/0xa40
[ 1682.695741][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1682.695741][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1682.695741][   T73]      netlink_rcv_skb+0x130/0x360
[ 1682.695741][   T73]      netlink_unicast+0x449/0x710
[ 1682.695741][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1682.695741][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1682.695741][   T73]      ___sys_sendmsg+0xee/0x170
[ 1682.695741][   T73]      __sys_sendmsg+0xcd/0x170
[ 1682.695741][   T73]      do_syscall_64+0xc6/0x1e0
[ 1682.695741][   T73] 
[ 1682.698251][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1682.698251][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1682.698251][   T73]      ipv6_find_idev+0x102/0x170
[ 1682.698251][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1682.698251][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1682.698251][   T73]      netlink_rcv_skb+0x130/0x360
[ 1682.698251][   T73]      netlink_unicast+0x449/0x710
[ 1682.698251][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1682.698251][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1682.698251][   T73]      ___sys_sendmsg+0xee/0x170
[ 1682.698251][   T73]      __sys_sendmsg+0xcd/0x170
[ 1682.698251][   T73]      do_syscall_64+0xc6/0x1e0
[ 1682.698251][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1682.698251][   T73] 
[ 1682.699814][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1682.699814][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1682.699814][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1682.699814][   T73]      ipv6_find_idev+0x102/0x170
[ 1682.699814][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1682.699814][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1682.699814][   T73]      netlink_rcv_skb+0x130/0x360
[ 1682.699814][   T73]      netlink_unicast+0x449/0x710
[ 1682.699814][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1682.699814][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1682.699814][   T73]      ___sys_sendmsg+0xee/0x170
[ 1682.699814][   T73]      __sys_sendmsg+0xcd/0x170
[ 1682.699814][   T73]      do_syscall_64+0xc6/0x1e0
[ 1682.699814][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1682.699814][   T73] 
[ 1682.701907][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1682.702201][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1682.702201][   T73]      netdev_get_by_index+0x5e/0x80
[ 1682.702201][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1682.702201][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1682.702201][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1682.702201][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1682.702201][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1682.702201][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1682.702201][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1682.702201][   T73]      addrconf_dad_begin+0x310/0x670
[ 1682.702201][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1682.702201][   T73]      process_one_work+0x84d/0x18a0
[ 1682.702201][   T73]      worker_thread+0x587/0xd30
[ 1682.702201][   T73]      kthread+0x28a/0x350
[ 1682.702201][   T73]      ret_from_fork+0x31/0x70
[ 1682.702201][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1682.702201][   T73] 
[ 1682.704106][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1682.704106][   T73]      netdev_get_by_index+0x5e/0x80
[ 1682.704106][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1682.704106][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1682.704106][   T73]      ip6_route_add+0x1c/0x140
[ 1682.704106][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1682.704106][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1682.704106][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1682.704106][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1682.704106][   T73]      netlink_rcv_skb+0x130/0x360
[ 1682.704106][   T73]      netlink_unicast+0x449/0x710
[ 1682.704106][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1682.704106][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1682.704106][   T73]      ___sys_sendmsg+0xee/0x170
[ 1682.704106][   T73]      __sys_sendmsg+0xcd/0x170
[ 1682.704106][   T73]      do_syscall_64+0xc6/0x1e0
[ 1682.704106][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1682.704106][   T73] 
[ 1682.706093][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1682.706093][   T73]      netdev_get_by_index+0x5e/0x80
[ 1682.706093][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1682.706093][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1682.706093][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1682.706093][   T73]      ipv6_add_addr+0x411/0x2000
[ 1682.706093][   T73]      inet6_addr_add+0x30e/0xa40
[ 1682.706093][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1682.706093][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1682.706093][   T73]      netlink_rcv_skb+0x130/0x360
[ 1682.706093][   T73]      netlink_unicast+0x449/0x710
[ 1682.706093][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1682.706093][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1682.706093][   T73]      ___sys_sendmsg+0xee/0x170
[ 1682.706093][   T73]      __sys_sendmsg+0xcd/0x170
[ 1682.706093][   T73]      do_syscall_64+0xc6/0x1e0
[ 1682.706093][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1682.706093][   T73] 
[ 1682.708141][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1682.708141][   T73]      netdev_get_by_index+0x5e/0x80
[ 1682.708141][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1682.708141][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1682.708141][   T73]      ip6_route_add+0x1c/0x140
[ 1682.708141][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1682.708141][   T73]      addrconf_add_dev+0xe2/0x170
[ 1682.708141][   T73]      inet6_addr_add+0x12f/0xa40
[ 1682.708141][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1682.708141][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1682.708141][   T73]      netlink_rcv_skb+0x130/0x360
[ 1682.708141][   T73]      netlink_unicast+0x449/0x710
[ 1682.708141][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1682.708141][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1682.708141][   T73]      ___sys_sendmsg+0xee/0x170
[ 1682.708141][   T73]      __sys_sendmsg+0xcd/0x170
[ 1682.708141][   T73]      do_syscall_64+0xc6/0x1e0
[ 1682.708141][   T73] 
[ 1682.710259][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1682.710259][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1682.710259][   T73]      ipv6_find_idev+0x102/0x170
[ 1682.710259][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1682.710259][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1682.710259][   T73]      netlink_rcv_skb+0x130/0x360
[ 1682.710259][   T73]      netlink_unicast+0x449/0x710
[ 1682.710259][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1682.710259][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1682.710259][   T73]      ___sys_sendmsg+0xee/0x170
[ 1682.710259][   T73]      __sys_sendmsg+0xcd/0x170
[ 1682.710259][   T73]      do_syscall_64+0xc6/0x1e0
[ 1682.710259][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1682.710259][   T73] 
[ 1682.711923][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1682.711923][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1682.711923][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1682.711923][   T73]      ipv6_find_idev+0x102/0x170
[ 1682.711923][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1682.711923][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1682.711923][   T73]      netlink_rcv_skb+0x130/0x360
[ 1682.711923][   T73]      netlink_unicast+0x449/0x710
[ 1682.711923][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1682.711923][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1682.711923][   T73]      ___sys_sendmsg+0xee/0x170
[ 1682.711923][   T73]      __sys_sendmsg+0xcd/0x170
[ 1682.711923][   T73]      do_syscall_64+0xc6/0x1e0
[ 1682.711923][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1682.711923][   T73] 
[ 1682.713745][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1682.714032][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1682.714032][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1682.714032][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1682.714032][   T73]      fib6_nh_init+0xa22/0x1580
[ 1682.714032][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1682.714032][   T73]      ip6_route_add+0x1c/0x140
[ 1682.714032][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1682.714032][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1682.714032][   T73]      netlink_rcv_skb+0x130/0x360
[ 1682.714032][   T73]      netlink_unicast+0x449/0x710
[ 1682.714032][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1682.714032][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1682.714032][   T73]      ___sys_sendmsg+0xee/0x170
[ 1682.714032][   T73]      __sys_sendmsg+0xcd/0x170
[ 1682.714032][   T73]      do_syscall_64+0xc6/0x1e0
[ 1682.714032][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1682.714032][   T73] 
[ 1682.716083][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1682.716083][   T73]      dst_init+0x84/0x4a0
[ 1682.716083][   T73]      dst_alloc+0x97/0x150
[ 1682.716083][   T73]      ip6_dst_alloc+0x23/0x90
[ 1682.716083][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1682.716083][   T73]      ip6_pol_route+0x56f/0x840
[ 1682.716083][   T73]      fib6_rule_lookup+0x456/0x630
[ 1682.716083][   T73]      ip6_route_input+0x59c/0xa50
[ 1682.716083][   T73]      ipv6_rcv+0x397/0x810
[ 1682.716083][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1682.716083][   T73]      process_backlog+0x101/0x620
[ 1682.716083][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1682.716083][   T73]      net_rx_action+0x495/0xbe0
[ 1682.716083][   T73]      __do_softirq+0x1b5/0x7f6
[ 1682.716083][   T73] 
[ 1682.717897][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1682.717897][   T73]      netdev_get_by_index+0x5e/0x80
[ 1682.717897][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1682.717897][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1682.717897][   T73]      ip6_route_add+0x1c/0x140
[ 1682.717897][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1682.717897][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1682.717897][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1682.717897][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1682.717897][   T73]      netlink_rcv_skb+0x130/0x360
[ 1682.717897][   T73]      netlink_unicast+0x449/0x710
[ 1682.717897][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1682.717897][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1682.717897][   T73]      ___sys_sendmsg+0xee/0x170
[ 1682.717897][   T73]      __sys_sendmsg+0xcd/0x170
[ 1682.717897][   T73]      do_syscall_64+0xc6/0x1e0
[ 1682.717897][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1682.717897][   T73] 
[ 1682.720056][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1682.720056][   T73]      netdev_get_by_index+0x5e/0x80
[ 1682.720056][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1682.720056][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1682.720056][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1682.720056][   T73]      ipv6_add_addr+0x411/0x2000
[ 1682.720056][   T73]      inet6_addr_add+0x30e/0xa40
[ 1682.720056][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1682.720056][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1682.720056][   T73]      netlink_rcv_skb+0x130/0x360
[ 1682.720056][   T73]      netlink_unicast+0x449/0x710
[ 1682.720056][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1682.720056][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1682.720056][   T73]      ___sys_sendmsg+0xee/0x170
[ 1682.720056][   T73]      __sys_sendmsg+0xcd/0x170
[ 1682.720056][   T73]      do_syscall_64+0xc6/0x1e0
[ 1682.720056][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1682.720056][   T73] 
[ 1682.722292][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1682.722292][   T73]      netdev_get_by_index+0x5e/0x80
[ 1682.722292][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1682.722292][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1682.722292][   T73]      ip6_route_add+0x1c/0x140
[ 1682.722292][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1682.722292][   T73]      addrconf_add_dev+0xe2/0x170
[ 1682.722292][   T73]      inet6_addr_add+0x12f/0xa40
[ 1682.722292][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1682.722292][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1682.722292][   T73]      netlink_rcv_skb+0x130/0x360
[ 1682.722292][   T73]      netlink_unicast+0x449/0x710
[ 1682.722292][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1682.722292][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1682.722292][   T73]      ___sys_sendmsg+0xee/0x170
[ 1682.722292][   T73]      __sys_sendmsg+0xcd/0x170
[ 1682.722292][   T73]      do_syscall_64+0xc6/0x1e0
[ 1682.722292][   T73] 
[ 1682.724847][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1682.724847][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1682.724847][   T73]      ipv6_find_idev+0x102/0x170
[ 1682.724847][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1682.724847][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1682.724847][   T73]      netlink_rcv_skb+0x130/0x360
[ 1682.724847][   T73]      netlink_unicast+0x449/0x710
[ 1682.724847][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1682.724847][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1682.724847][   T73]      ___sys_sendmsg+0xee/0x170
[ 1682.724847][   T73]      __sys_sendmsg+0xcd/0x170
[ 1682.724847][   T73]      do_syscall_64+0xc6/0x1e0
[ 1682.724847][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1682.724847][   T73] 
[ 1682.726574][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1682.726574][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1682.726574][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1682.726574][   T73]      ipv6_find_idev+0x102/0x170
[ 1682.726574][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1682.726574][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1682.726574][   T73]      netlink_rcv_skb+0x130/0x360
[ 1682.726574][   T73]      netlink_unicast+0x449/0x710
[ 1682.726574][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1682.726574][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1682.726574][   T73]      ___sys_sendmsg+0xee/0x170
[ 1682.726574][   T73]      __sys_sendmsg+0xcd/0x170
[ 1682.726574][   T73]      do_syscall_64+0xc6/0x1e0
[ 1682.726574][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1682.726574][   T73] 
[ 1682.728446][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1682.729216][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1682.729216][   T73]      netdev_get_by_index+0x5e/0x80
[ 1682.729216][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1682.729216][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1682.729216][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1682.729216][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1682.729216][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1682.729216][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1682.729216][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1682.729216][   T73]      addrconf_dad_begin+0x310/0x670
[ 1682.729216][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1682.729216][   T73]      process_one_work+0x84d/0x18a0
[ 1682.729216][   T73]      worker_thread+0x587/0xd30
[ 1682.729216][   T73]      kthread+0x28a/0x350
[ 1682.729216][   T73]      ret_from_fork+0x31/0x70
[ 1682.729216][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1682.729216][   T73] 
[ 1682.731106][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1682.731106][   T73]      netdev_get_by_index+0x5e/0x80
[ 1682.731106][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1682.731106][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1682.731106][   T73]      ip6_route_add+0x1c/0x140
[ 1682.731106][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1682.731106][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1682.731106][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1682.731106][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1682.731106][   T73]      netlink_rcv_skb+0x130/0x360
[ 1682.731106][   T73]      netlink_unicast+0x449/0x710
[ 1682.731106][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1682.731106][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1682.731106][   T73]      ___sys_sendmsg+0xee/0x170
[ 1682.731106][   T73]      __sys_sendmsg+0xcd/0x170
[ 1682.731106][   T73]      do_syscall_64+0xc6/0x1e0
[ 1682.731106][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1682.731106][   T73] 
[ 1682.733147][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1682.733147][   T73]      netdev_get_by_index+0x5e/0x80
[ 1682.733147][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1682.733147][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1682.733147][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1682.733147][   T73]      ipv6_add_addr+0x411/0x2000
[ 1682.733147][   T73]      inet6_addr_add+0x30e/0xa40
[ 1682.733147][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1682.733147][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1682.733147][   T73]      netlink_rcv_skb+0x130/0x360
[ 1682.733147][   T73]      netlink_unicast+0x449/0x710
[ 1682.733147][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1682.733147][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1682.733147][   T73]      ___sys_sendmsg+0xee/0x170
[ 1682.733147][   T73]      __sys_sendmsg+0xcd/0x170
[ 1682.733147][   T73]      do_syscall_64+0xc6/0x1e0
[ 1682.733147][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1682.733147][   T73] 
[ 1682.735373][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1682.735373][   T73]      netdev_get_by_index+0x5e/0x80
[ 1682.735373][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1682.735373][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1682.735373][   T73]      ip6_route_add+0x1c/0x140
[ 1682.735373][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1682.735373][   T73]      addrconf_add_dev+0xe2/0x170
[ 1682.735373][   T73]      inet6_addr_add+0x12f/0xa40
[ 1682.735373][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1682.735373][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1682.735373][   T73]      netlink_rcv_skb+0x130/0x360
[ 1682.735373][   T73]      netlink_unicast+0x449/0x710
[ 1682.735373][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1682.735373][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1682.735373][   T73]      ___sys_sendmsg+0xee/0x170
[ 1682.735373][   T73]      __sys_sendmsg+0xcd/0x170
[ 1682.735373][   T73]      do_syscall_64+0xc6/0x1e0
[ 1682.735373][   T73] 
[ 1682.737630][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1682.737630][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1682.737630][   T73]      ipv6_find_idev+0x102/0x170
[ 1682.737630][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1682.737630][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1682.737630][   T73]      netlink_rcv_skb+0x130/0x360
[ 1682.737630][   T73]      netlink_unicast+0x449/0x710
[ 1682.737630][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1682.737630][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1682.737630][   T73]      ___sys_sendmsg+0xee/0x170
[ 1682.737630][   T73]      __sys_sendmsg+0xcd/0x170
[ 1682.737630][   T73]      do_syscall_64+0xc6/0x1e0
[ 1682.737630][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1682.737630][   T73] 
[ 1682.739334][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1682.739334][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1682.739334][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1682.739334][   T73]      ipv6_find_idev+0x102/0x170
[ 1682.739334][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1682.739334][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1682.739334][   T73]      netlink_rcv_skb+0x130/0x360
[ 1682.739334][   T73]      netlink_unicast+0x449/0x710
[ 1682.739334][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1682.739334][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1682.739334][   T73]      ___sys_sendmsg+0xee/0x170
[ 1682.739334][   T73]      __sys_sendmsg+0xcd/0x170
[ 1682.739334][   T73]      do_syscall_64+0xc6/0x1e0
[ 1682.739334][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1682.739334][   T73] 
[ 1692.863676][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1692.864160][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1692.864160][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1692.864160][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1692.864160][   T73]      fib6_nh_init+0xa22/0x1580
[ 1692.864160][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1692.864160][   T73]      ip6_route_add+0x1c/0x140
[ 1692.864160][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1692.864160][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1692.864160][   T73]      netlink_rcv_skb+0x130/0x360
[ 1692.864160][   T73]      netlink_unicast+0x449/0x710
[ 1692.864160][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1692.864160][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1692.864160][   T73]      ___sys_sendmsg+0xee/0x170
[ 1692.864160][   T73]      __sys_sendmsg+0xcd/0x170
[ 1692.864160][   T73]      do_syscall_64+0xc6/0x1e0
[ 1692.864160][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1692.864160][   T73] 
[ 1692.866184][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1692.866184][   T73]      dst_init+0x84/0x4a0
[ 1692.866184][   T73]      dst_alloc+0x97/0x150
[ 1692.866184][   T73]      ip6_dst_alloc+0x23/0x90
[ 1692.866184][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1692.866184][   T73]      ip6_pol_route+0x56f/0x840
[ 1692.866184][   T73]      fib6_rule_lookup+0x456/0x630
[ 1692.866184][   T73]      ip6_route_input+0x59c/0xa50
[ 1692.866184][   T73]      ipv6_rcv+0x397/0x810
[ 1692.866184][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1692.866184][   T73]      process_backlog+0x101/0x620
[ 1692.866184][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1692.866184][   T73]      net_rx_action+0x495/0xbe0
[ 1692.866184][   T73]      __do_softirq+0x1b5/0x7f6
[ 1692.866184][   T73] 
[ 1692.867925][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1692.867925][   T73]      netdev_get_by_index+0x5e/0x80
[ 1692.867925][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1692.867925][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1692.867925][   T73]      ip6_route_add+0x1c/0x140
[ 1692.867925][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1692.867925][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1692.867925][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1692.867925][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1692.867925][   T73]      netlink_rcv_skb+0x130/0x360
[ 1692.867925][   T73]      netlink_unicast+0x449/0x710
[ 1692.867925][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1692.867925][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1692.867925][   T73]      ___sys_sendmsg+0xee/0x170
[ 1692.867925][   T73]      __sys_sendmsg+0xcd/0x170
[ 1692.867925][   T73]      do_syscall_64+0xc6/0x1e0
[ 1692.867925][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1692.867925][   T73] 
[ 1692.870018][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1692.870018][   T73]      netdev_get_by_index+0x5e/0x80
[ 1692.870018][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1692.870018][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1692.870018][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1692.870018][   T73]      ipv6_add_addr+0x411/0x2000
[ 1692.870018][   T73]      inet6_addr_add+0x30e/0xa40
[ 1692.870018][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1692.870018][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1692.870018][   T73]      netlink_rcv_skb+0x130/0x360
[ 1692.870018][   T73]      netlink_unicast+0x449/0x710
[ 1692.870018][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1692.870018][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1692.870018][   T73]      ___sys_sendmsg+0xee/0x170
[ 1692.870018][   T73]      __sys_sendmsg+0xcd/0x170
[ 1692.870018][   T73]      do_syscall_64+0xc6/0x1e0
[ 1692.870018][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1692.870018][   T73] 
[ 1692.872115][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1692.872115][   T73]      netdev_get_by_index+0x5e/0x80
[ 1692.872115][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1692.872115][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1692.872115][   T73]      ip6_route_add+0x1c/0x140
[ 1692.872115][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1692.872115][   T73]      addrconf_add_dev+0xe2/0x170
[ 1692.872115][   T73]      inet6_addr_add+0x12f/0xa40
[ 1692.872115][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1692.872115][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1692.872115][   T73]      netlink_rcv_skb+0x130/0x360
[ 1692.872115][   T73]      netlink_unicast+0x449/0x710
[ 1692.872115][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1692.872115][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1692.872115][   T73]      ___sys_sendmsg+0xee/0x170
[ 1692.872115][   T73]      __sys_sendmsg+0xcd/0x170
[ 1692.872115][   T73]      do_syscall_64+0xc6/0x1e0
[ 1692.872115][   T73] 
[ 1692.874171][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1692.874171][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1692.874171][   T73]      ipv6_find_idev+0x102/0x170
[ 1692.874171][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1692.874171][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1692.874171][   T73]      netlink_rcv_skb+0x130/0x360
[ 1692.874171][   T73]      netlink_unicast+0x449/0x710
[ 1692.874171][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1692.874171][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1692.874171][   T73]      ___sys_sendmsg+0xee/0x170
[ 1692.874171][   T73]      __sys_sendmsg+0xcd/0x170
[ 1692.874171][   T73]      do_syscall_64+0xc6/0x1e0
[ 1692.874171][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1692.874171][   T73] 
[ 1692.875776][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1692.875776][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1692.875776][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1692.875776][   T73]      ipv6_find_idev+0x102/0x170
[ 1692.875776][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1692.875776][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1692.875776][   T73]      netlink_rcv_skb+0x130/0x360
[ 1692.875776][   T73]      netlink_unicast+0x449/0x710
[ 1692.875776][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1692.875776][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1692.875776][   T73]      ___sys_sendmsg+0xee/0x170
[ 1692.875776][   T73]      __sys_sendmsg+0xcd/0x170
[ 1692.875776][   T73]      do_syscall_64+0xc6/0x1e0
[ 1692.875776][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1692.875776][   T73] 
[ 1692.877557][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1692.877870][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1692.877870][   T73]      netdev_get_by_index+0x5e/0x80
[ 1692.877870][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1692.877870][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1692.877870][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1692.877870][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1692.877870][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1692.877870][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1692.877870][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1692.877870][   T73]      addrconf_dad_begin+0x310/0x670
[ 1692.877870][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1692.877870][   T73]      process_one_work+0x84d/0x18a0
[ 1692.877870][   T73]      worker_thread+0x587/0xd30
[ 1692.877870][   T73]      kthread+0x28a/0x350
[ 1692.877870][   T73]      ret_from_fork+0x31/0x70
[ 1692.877870][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1692.877870][   T73] 
[ 1692.879880][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1692.879880][   T73]      netdev_get_by_index+0x5e/0x80
[ 1692.879880][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1692.879880][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1692.879880][   T73]      ip6_route_add+0x1c/0x140
[ 1692.879880][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1692.879880][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1692.879880][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1692.879880][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1692.879880][   T73]      netlink_rcv_skb+0x130/0x360
[ 1692.879880][   T73]      netlink_unicast+0x449/0x710
[ 1692.879880][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1692.879880][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1692.879880][   T73]      ___sys_sendmsg+0xee/0x170
[ 1692.879880][   T73]      __sys_sendmsg+0xcd/0x170
[ 1692.879880][   T73]      do_syscall_64+0xc6/0x1e0
[ 1692.879880][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1692.879880][   T73] 
[ 1692.881986][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1692.881986][   T73]      netdev_get_by_index+0x5e/0x80
[ 1692.881986][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1692.881986][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1692.881986][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1692.881986][   T73]      ipv6_add_addr+0x411/0x2000
[ 1692.881986][   T73]      inet6_addr_add+0x30e/0xa40
[ 1692.881986][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1692.881986][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1692.881986][   T73]      netlink_rcv_skb+0x130/0x360
[ 1692.881986][   T73]      netlink_unicast+0x449/0x710
[ 1692.881986][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1692.881986][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1692.881986][   T73]      ___sys_sendmsg+0xee/0x170
[ 1692.881986][   T73]      __sys_sendmsg+0xcd/0x170
[ 1692.881986][   T73]      do_syscall_64+0xc6/0x1e0
[ 1692.881986][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1692.881986][   T73] 
[ 1692.884073][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1692.884073][   T73]      netdev_get_by_index+0x5e/0x80
[ 1692.884073][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1692.884073][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1692.884073][   T73]      ip6_route_add+0x1c/0x140
[ 1692.884073][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1692.884073][   T73]      addrconf_add_dev+0xe2/0x170
[ 1692.884073][   T73]      inet6_addr_add+0x12f/0xa40
[ 1692.884073][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1692.884073][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1692.884073][   T73]      netlink_rcv_skb+0x130/0x360
[ 1692.884073][   T73]      netlink_unicast+0x449/0x710
[ 1692.884073][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1692.884073][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1692.884073][   T73]      ___sys_sendmsg+0xee/0x170
[ 1692.884073][   T73]      __sys_sendmsg+0xcd/0x170
[ 1692.884073][   T73]      do_syscall_64+0xc6/0x1e0
[ 1692.884073][   T73] 
[ 1692.886036][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1692.886036][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1692.886036][   T73]      ipv6_find_idev+0x102/0x170
[ 1692.886036][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1692.886036][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1692.886036][   T73]      netlink_rcv_skb+0x130/0x360
[ 1692.886036][   T73]      netlink_unicast+0x449/0x710
[ 1692.886036][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1692.886036][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1692.886036][   T73]      ___sys_sendmsg+0xee/0x170
[ 1692.886036][   T73]      __sys_sendmsg+0xcd/0x170
[ 1692.886036][   T73]      do_syscall_64+0xc6/0x1e0
[ 1692.886036][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1692.886036][   T73] 
[ 1692.887985][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1692.887985][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1692.887985][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1692.887985][   T73]      ipv6_find_idev+0x102/0x170
[ 1692.887985][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1692.887985][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1692.887985][   T73]      netlink_rcv_skb+0x130/0x360
[ 1692.887985][   T73]      netlink_unicast+0x449/0x710
[ 1692.887985][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1692.887985][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1692.887985][   T73]      ___sys_sendmsg+0xee/0x170
[ 1692.887985][   T73]      __sys_sendmsg+0xcd/0x170
[ 1692.887985][   T73]      do_syscall_64+0xc6/0x1e0
[ 1692.887985][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1692.887985][   T73] 
[ 1692.889662][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1692.889935][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1692.889935][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1692.889935][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1692.889935][   T73]      fib6_nh_init+0xa22/0x1580
[ 1692.889935][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1692.889935][   T73]      ip6_route_add+0x1c/0x140
[ 1692.889935][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1692.889935][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1692.889935][   T73]      netlink_rcv_skb+0x130/0x360
[ 1692.889935][   T73]      netlink_unicast+0x449/0x710
[ 1692.889935][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1692.889935][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1692.889935][   T73]      ___sys_sendmsg+0xee/0x170
[ 1692.889935][   T73]      __sys_sendmsg+0xcd/0x170
[ 1692.889935][   T73]      do_syscall_64+0xc6/0x1e0
[ 1692.889935][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1692.889935][   T73] 
[ 1692.891945][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1692.891945][   T73]      dst_init+0x84/0x4a0
[ 1692.891945][   T73]      dst_alloc+0x97/0x150
[ 1692.891945][   T73]      ip6_dst_alloc+0x23/0x90
[ 1692.891945][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1692.891945][   T73]      ip6_pol_route+0x56f/0x840
[ 1692.891945][   T73]      fib6_rule_lookup+0x456/0x630
[ 1692.891945][   T73]      ip6_route_input+0x59c/0xa50
[ 1692.891945][   T73]      ipv6_rcv+0x397/0x810
[ 1692.891945][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1692.891945][   T73]      process_backlog+0x101/0x620
[ 1692.891945][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1692.891945][   T73]      net_rx_action+0x495/0xbe0
[ 1692.891945][   T73]      __do_softirq+0x1b5/0x7f6
[ 1692.891945][   T73] 
[ 1692.893645][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1692.893645][   T73]      netdev_get_by_index+0x5e/0x80
[ 1692.893645][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1692.893645][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1692.893645][   T73]      ip6_route_add+0x1c/0x140
[ 1692.893645][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1692.893645][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1692.893645][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1692.893645][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1692.893645][   T73]      netlink_rcv_skb+0x130/0x360
[ 1692.893645][   T73]      netlink_unicast+0x449/0x710
[ 1692.893645][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1692.893645][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1692.893645][   T73]      ___sys_sendmsg+0xee/0x170
[ 1692.893645][   T73]      __sys_sendmsg+0xcd/0x170
[ 1692.893645][   T73]      do_syscall_64+0xc6/0x1e0
[ 1692.893645][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1692.893645][   T73] 
[ 1692.895780][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1692.895780][   T73]      netdev_get_by_index+0x5e/0x80
[ 1692.895780][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1692.895780][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1692.895780][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1692.895780][   T73]      ipv6_add_addr+0x411/0x2000
[ 1692.895780][   T73]      inet6_addr_add+0x30e/0xa40
[ 1692.895780][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1692.895780][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1692.895780][   T73]      netlink_rcv_skb+0x130/0x360
[ 1692.895780][   T73]      netlink_unicast+0x449/0x710
[ 1692.895780][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1692.895780][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1692.895780][   T73]      ___sys_sendmsg+0xee/0x170
[ 1692.895780][   T73]      __sys_sendmsg+0xcd/0x170
[ 1692.895780][   T73]      do_syscall_64+0xc6/0x1e0
[ 1692.895780][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1692.895780][   T73] 
[ 1692.897984][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1692.897984][   T73]      netdev_get_by_index+0x5e/0x80
[ 1692.897984][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1692.897984][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1692.897984][   T73]      ip6_route_add+0x1c/0x140
[ 1692.897984][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1692.897984][   T73]      addrconf_add_dev+0xe2/0x170
[ 1692.897984][   T73]      inet6_addr_add+0x12f/0xa40
[ 1692.897984][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1692.897984][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1692.897984][   T73]      netlink_rcv_skb+0x130/0x360
[ 1692.897984][   T73]      netlink_unicast+0x449/0x710
[ 1692.897984][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1692.897984][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1692.897984][   T73]      ___sys_sendmsg+0xee/0x170
[ 1692.897984][   T73]      __sys_sendmsg+0xcd/0x170
[ 1692.897984][   T73]      do_syscall_64+0xc6/0x1e0
[ 1692.897984][   T73] 
[ 1692.900274][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1692.900274][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1692.900274][   T73]      ipv6_find_idev+0x102/0x170
[ 1692.900274][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1692.900274][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1692.900274][   T73]      netlink_rcv_skb+0x130/0x360
[ 1692.900274][   T73]      netlink_unicast+0x449/0x710
[ 1692.900274][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1692.900274][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1692.900274][   T73]      ___sys_sendmsg+0xee/0x170
[ 1692.900274][   T73]      __sys_sendmsg+0xcd/0x170
[ 1692.900274][   T73]      do_syscall_64+0xc6/0x1e0
[ 1692.900274][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1692.900274][   T73] 
[ 1692.901942][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1692.901942][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1692.901942][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1692.901942][   T73]      ipv6_find_idev+0x102/0x170
[ 1692.901942][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1692.901942][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1692.901942][   T73]      netlink_rcv_skb+0x130/0x360
[ 1692.901942][   T73]      netlink_unicast+0x449/0x710
[ 1692.901942][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1692.901942][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1692.901942][   T73]      ___sys_sendmsg+0xee/0x170
[ 1692.901942][   T73]      __sys_sendmsg+0xcd/0x170
[ 1692.901942][   T73]      do_syscall_64+0xc6/0x1e0
[ 1692.901942][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1692.901942][   T73] 
[ 1692.903732][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1692.904012][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1692.904012][   T73]      netdev_get_by_index+0x5e/0x80
[ 1692.904012][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1692.904012][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1692.904012][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1692.904012][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1692.904012][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1692.904012][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1692.904012][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1692.904012][   T73]      addrconf_dad_begin+0x310/0x670
[ 1692.904012][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1692.904012][   T73]      process_one_work+0x84d/0x18a0
[ 1692.904012][   T73]      worker_thread+0x587/0xd30
[ 1692.904012][   T73]      kthread+0x28a/0x350
[ 1692.904012][   T73]      ret_from_fork+0x31/0x70
[ 1692.904012][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1692.904012][   T73] 
[ 1692.906058][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1692.906058][   T73]      netdev_get_by_index+0x5e/0x80
[ 1692.906058][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1692.906058][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1692.906058][   T73]      ip6_route_add+0x1c/0x140
[ 1692.906058][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1692.906058][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1692.906058][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1692.906058][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1692.906058][   T73]      netlink_rcv_skb+0x130/0x360
[ 1692.906058][   T73]      netlink_unicast+0x449/0x710
[ 1692.906058][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1692.906058][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1692.906058][   T73]      ___sys_sendmsg+0xee/0x170
[ 1692.906058][   T73]      __sys_sendmsg+0xcd/0x170
[ 1692.906058][   T73]      do_syscall_64+0xc6/0x1e0
[ 1692.906058][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1692.906058][   T73] 
[ 1692.908131][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1692.908131][   T73]      netdev_get_by_index+0x5e/0x80
[ 1692.908131][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1692.908131][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1692.908131][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1692.908131][   T73]      ipv6_add_addr+0x411/0x2000
[ 1692.908131][   T73]      inet6_addr_add+0x30e/0xa40
[ 1692.908131][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1692.908131][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1692.908131][   T73]      netlink_rcv_skb+0x130/0x360
[ 1692.908131][   T73]      netlink_unicast+0x449/0x710
[ 1692.908131][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1692.908131][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1692.908131][   T73]      ___sys_sendmsg+0xee/0x170
[ 1692.908131][   T73]      __sys_sendmsg+0xcd/0x170
[ 1692.908131][   T73]      do_syscall_64+0xc6/0x1e0
[ 1692.908131][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1692.908131][   T73] 
[ 1692.910257][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1692.910257][   T73]      netdev_get_by_index+0x5e/0x80
[ 1692.910257][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1692.910257][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1692.910257][   T73]      ip6_route_add+0x1c/0x140
[ 1692.910257][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1692.910257][   T73]      addrconf_add_dev+0xe2/0x170
[ 1692.910257][   T73]      inet6_addr_add+0x12f/0xa40
[ 1692.910257][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1692.910257][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1692.910257][   T73]      netlink_rcv_skb+0x130/0x360
[ 1692.910257][   T73]      netlink_unicast+0x449/0x710
[ 1692.910257][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1692.910257][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1692.910257][   T73]      ___sys_sendmsg+0xee/0x170
[ 1692.910257][   T73]      __sys_sendmsg+0xcd/0x170
[ 1692.910257][   T73]      do_syscall_64+0xc6/0x1e0
[ 1692.910257][   T73] 
[ 1692.912358][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1692.912358][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1692.912358][   T73]      ipv6_find_idev+0x102/0x170
[ 1692.912358][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1692.912358][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1692.912358][   T73]      netlink_rcv_skb+0x130/0x360
[ 1692.912358][   T73]      netlink_unicast+0x449/0x710
[ 1692.912358][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1692.912358][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1692.912358][   T73]      ___sys_sendmsg+0xee/0x170
[ 1692.912358][   T73]      __sys_sendmsg+0xcd/0x170
[ 1692.912358][   T73]      do_syscall_64+0xc6/0x1e0
[ 1692.912358][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1692.912358][   T73] 
[ 1692.913963][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1692.913963][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1692.913963][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1692.913963][   T73]      ipv6_find_idev+0x102/0x170
[ 1692.913963][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1692.913963][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1692.913963][   T73]      netlink_rcv_skb+0x130/0x360
[ 1692.913963][   T73]      netlink_unicast+0x449/0x710
[ 1692.913963][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1692.913963][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1692.913963][   T73]      ___sys_sendmsg+0xee/0x170
[ 1692.913963][   T73]      __sys_sendmsg+0xcd/0x170
[ 1692.913963][   T73]      do_syscall_64+0xc6/0x1e0
[ 1692.913963][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1692.913963][   T73] 
[ 1703.119746][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1703.120207][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1703.120207][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1703.120207][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1703.120207][   T73]      fib6_nh_init+0xa22/0x1580
[ 1703.120207][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1703.120207][   T73]      ip6_route_add+0x1c/0x140
[ 1703.120207][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1703.120207][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1703.120207][   T73]      netlink_rcv_skb+0x130/0x360
[ 1703.120207][   T73]      netlink_unicast+0x449/0x710
[ 1703.120207][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1703.120207][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1703.120207][   T73]      ___sys_sendmsg+0xee/0x170
[ 1703.120207][   T73]      __sys_sendmsg+0xcd/0x170
[ 1703.120207][   T73]      do_syscall_64+0xc6/0x1e0
[ 1703.120207][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1703.120207][   T73] 
[ 1703.122262][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1703.122262][   T73]      dst_init+0x84/0x4a0
[ 1703.122262][   T73]      dst_alloc+0x97/0x150
[ 1703.122262][   T73]      ip6_dst_alloc+0x23/0x90
[ 1703.122262][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1703.122262][   T73]      ip6_pol_route+0x56f/0x840
[ 1703.122262][   T73]      fib6_rule_lookup+0x456/0x630
[ 1703.122262][   T73]      ip6_route_input+0x59c/0xa50
[ 1703.122262][   T73]      ipv6_rcv+0x397/0x810
[ 1703.122262][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1703.122262][   T73]      process_backlog+0x101/0x620
[ 1703.122262][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1703.122262][   T73]      net_rx_action+0x495/0xbe0
[ 1703.122262][   T73]      __do_softirq+0x1b5/0x7f6
[ 1703.122262][   T73] 
[ 1703.124064][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1703.124064][   T73]      netdev_get_by_index+0x5e/0x80
[ 1703.124064][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1703.124064][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1703.124064][   T73]      ip6_route_add+0x1c/0x140
[ 1703.124064][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1703.124064][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1703.124064][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1703.124064][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1703.124064][   T73]      netlink_rcv_skb+0x130/0x360
[ 1703.124064][   T73]      netlink_unicast+0x449/0x710
[ 1703.124064][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1703.124064][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1703.124064][   T73]      ___sys_sendmsg+0xee/0x170
[ 1703.124064][   T73]      __sys_sendmsg+0xcd/0x170
[ 1703.124064][   T73]      do_syscall_64+0xc6/0x1e0
[ 1703.124064][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1703.124064][   T73] 
[ 1703.126229][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1703.126229][   T73]      netdev_get_by_index+0x5e/0x80
[ 1703.126229][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1703.126229][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1703.126229][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1703.126229][   T73]      ipv6_add_addr+0x411/0x2000
[ 1703.126229][   T73]      inet6_addr_add+0x30e/0xa40
[ 1703.126229][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1703.126229][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1703.126229][   T73]      netlink_rcv_skb+0x130/0x360
[ 1703.126229][   T73]      netlink_unicast+0x449/0x710
[ 1703.126229][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1703.126229][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1703.126229][   T73]      ___sys_sendmsg+0xee/0x170
[ 1703.126229][   T73]      __sys_sendmsg+0xcd/0x170
[ 1703.126229][   T73]      do_syscall_64+0xc6/0x1e0
[ 1703.126229][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1703.126229][   T73] 
[ 1703.128441][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1703.128441][   T73]      netdev_get_by_index+0x5e/0x80
[ 1703.128441][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1703.128441][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1703.128441][   T73]      ip6_route_add+0x1c/0x140
[ 1703.128441][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1703.128441][   T73]      addrconf_add_dev+0xe2/0x170
[ 1703.128441][   T73]      inet6_addr_add+0x12f/0xa40
[ 1703.128441][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1703.128441][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1703.128441][   T73]      netlink_rcv_skb+0x130/0x360
[ 1703.128441][   T73]      netlink_unicast+0x449/0x710
[ 1703.128441][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1703.128441][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1703.128441][   T73]      ___sys_sendmsg+0xee/0x170
[ 1703.128441][   T73]      __sys_sendmsg+0xcd/0x170
[ 1703.128441][   T73]      do_syscall_64+0xc6/0x1e0
[ 1703.128441][   T73] 
[ 1703.130606][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1703.130606][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1703.130606][   T73]      ipv6_find_idev+0x102/0x170
[ 1703.130606][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1703.130606][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1703.130606][   T73]      netlink_rcv_skb+0x130/0x360
[ 1703.130606][   T73]      netlink_unicast+0x449/0x710
[ 1703.130606][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1703.130606][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1703.130606][   T73]      ___sys_sendmsg+0xee/0x170
[ 1703.130606][   T73]      __sys_sendmsg+0xcd/0x170
[ 1703.130606][   T73]      do_syscall_64+0xc6/0x1e0
[ 1703.130606][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1703.130606][   T73] 
[ 1703.132272][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1703.132272][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1703.132272][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1703.132272][   T73]      ipv6_find_idev+0x102/0x170
[ 1703.132272][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1703.132272][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1703.132272][   T73]      netlink_rcv_skb+0x130/0x360
[ 1703.132272][   T73]      netlink_unicast+0x449/0x710
[ 1703.132272][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1703.132272][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1703.132272][   T73]      ___sys_sendmsg+0xee/0x170
[ 1703.132272][   T73]      __sys_sendmsg+0xcd/0x170
[ 1703.132272][   T73]      do_syscall_64+0xc6/0x1e0
[ 1703.132272][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1703.132272][   T73] 
[ 1703.134110][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1703.134408][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1703.134408][   T73]      netdev_get_by_index+0x5e/0x80
[ 1703.134408][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1703.134408][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1703.134408][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1703.134408][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1703.134408][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1703.134408][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1703.134408][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1703.134408][   T73]      addrconf_dad_begin+0x310/0x670
[ 1703.134408][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1703.134408][   T73]      process_one_work+0x84d/0x18a0
[ 1703.134408][   T73]      worker_thread+0x587/0xd30
[ 1703.134408][   T73]      kthread+0x28a/0x350
[ 1703.134408][   T73]      ret_from_fork+0x31/0x70
[ 1703.134408][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1703.134408][   T73] 
[ 1703.136492][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1703.136492][   T73]      netdev_get_by_index+0x5e/0x80
[ 1703.136492][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1703.136492][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1703.136492][   T73]      ip6_route_add+0x1c/0x140
[ 1703.136492][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1703.136492][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1703.136492][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1703.136492][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1703.136492][   T73]      netlink_rcv_skb+0x130/0x360
[ 1703.136492][   T73]      netlink_unicast+0x449/0x710
[ 1703.136492][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1703.136492][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1703.136492][   T73]      ___sys_sendmsg+0xee/0x170
[ 1703.136492][   T73]      __sys_sendmsg+0xcd/0x170
[ 1703.136492][   T73]      do_syscall_64+0xc6/0x1e0
[ 1703.136492][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1703.136492][   T73] 
[ 1703.138676][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1703.138676][   T73]      netdev_get_by_index+0x5e/0x80
[ 1703.138676][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1703.138676][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1703.138676][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1703.138676][   T73]      ipv6_add_addr+0x411/0x2000
[ 1703.138676][   T73]      inet6_addr_add+0x30e/0xa40
[ 1703.138676][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1703.138676][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1703.138676][   T73]      netlink_rcv_skb+0x130/0x360
[ 1703.138676][   T73]      netlink_unicast+0x449/0x710
[ 1703.138676][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1703.138676][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1703.138676][   T73]      ___sys_sendmsg+0xee/0x170
[ 1703.138676][   T73]      __sys_sendmsg+0xcd/0x170
[ 1703.138676][   T73]      do_syscall_64+0xc6/0x1e0
[ 1703.138676][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1703.138676][   T73] 
[ 1703.140821][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1703.140821][   T73]      netdev_get_by_index+0x5e/0x80
[ 1703.140821][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1703.140821][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1703.140821][   T73]      ip6_route_add+0x1c/0x140
[ 1703.140821][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1703.140821][   T73]      addrconf_add_dev+0xe2/0x170
[ 1703.140821][   T73]      inet6_addr_add+0x12f/0xa40
[ 1703.140821][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1703.140821][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1703.140821][   T73]      netlink_rcv_skb+0x130/0x360
[ 1703.140821][   T73]      netlink_unicast+0x449/0x710
[ 1703.140821][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1703.140821][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1703.140821][   T73]      ___sys_sendmsg+0xee/0x170
[ 1703.140821][   T73]      __sys_sendmsg+0xcd/0x170
[ 1703.140821][   T73]      do_syscall_64+0xc6/0x1e0
[ 1703.140821][   T73] 
[ 1703.142954][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1703.142954][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1703.142954][   T73]      ipv6_find_idev+0x102/0x170
[ 1703.142954][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1703.142954][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1703.142954][   T73]      netlink_rcv_skb+0x130/0x360
[ 1703.142954][   T73]      netlink_unicast+0x449/0x710
[ 1703.142954][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1703.142954][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1703.142954][   T73]      ___sys_sendmsg+0xee/0x170
[ 1703.142954][   T73]      __sys_sendmsg+0xcd/0x170
[ 1703.142954][   T73]      do_syscall_64+0xc6/0x1e0
[ 1703.142954][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1703.142954][   T73] 
[ 1703.144622][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1703.144622][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1703.144622][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1703.144622][   T73]      ipv6_find_idev+0x102/0x170
[ 1703.144622][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1703.144622][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1703.144622][   T73]      netlink_rcv_skb+0x130/0x360
[ 1703.144622][   T73]      netlink_unicast+0x449/0x710
[ 1703.144622][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1703.144622][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1703.144622][   T73]      ___sys_sendmsg+0xee/0x170
[ 1703.144622][   T73]      __sys_sendmsg+0xcd/0x170
[ 1703.144622][   T73]      do_syscall_64+0xc6/0x1e0
[ 1703.144622][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1703.144622][   T73] 
[ 1703.146424][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1703.146719][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1703.146719][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1703.146719][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1703.146719][   T73]      fib6_nh_init+0xa22/0x1580
[ 1703.146719][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1703.146719][   T73]      ip6_route_add+0x1c/0x140
[ 1703.146719][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1703.146719][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1703.146719][   T73]      netlink_rcv_skb+0x130/0x360
[ 1703.146719][   T73]      netlink_unicast+0x449/0x710
[ 1703.146719][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1703.146719][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1703.146719][   T73]      ___sys_sendmsg+0xee/0x170
[ 1703.146719][   T73]      __sys_sendmsg+0xcd/0x170
[ 1703.146719][   T73]      do_syscall_64+0xc6/0x1e0
[ 1703.146719][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1703.146719][   T73] 
[ 1703.148925][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1703.148925][   T73]      dst_init+0x84/0x4a0
[ 1703.148925][   T73]      dst_alloc+0x97/0x150
[ 1703.148925][   T73]      ip6_dst_alloc+0x23/0x90
[ 1703.148925][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1703.148925][   T73]      ip6_pol_route+0x56f/0x840
[ 1703.148925][   T73]      fib6_rule_lookup+0x456/0x630
[ 1703.148925][   T73]      ip6_route_input+0x59c/0xa50
[ 1703.148925][   T73]      ipv6_rcv+0x397/0x810
[ 1703.148925][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1703.148925][   T73]      process_backlog+0x101/0x620
[ 1703.148925][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1703.148925][   T73]      net_rx_action+0x495/0xbe0
[ 1703.148925][   T73]      __do_softirq+0x1b5/0x7f6
[ 1703.148925][   T73] 
[ 1703.150898][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1703.150898][   T73]      netdev_get_by_index+0x5e/0x80
[ 1703.150898][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1703.150898][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1703.150898][   T73]      ip6_route_add+0x1c/0x140
[ 1703.150898][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1703.150898][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1703.150898][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1703.150898][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1703.150898][   T73]      netlink_rcv_skb+0x130/0x360
[ 1703.150898][   T73]      netlink_unicast+0x449/0x710
[ 1703.150898][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1703.150898][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1703.150898][   T73]      ___sys_sendmsg+0xee/0x170
[ 1703.150898][   T73]      __sys_sendmsg+0xcd/0x170
[ 1703.150898][   T73]      do_syscall_64+0xc6/0x1e0
[ 1703.150898][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1703.150898][   T73] 
[ 1703.153306][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1703.153306][   T73]      netdev_get_by_index+0x5e/0x80
[ 1703.153306][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1703.153306][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1703.153306][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1703.153306][   T73]      ipv6_add_addr+0x411/0x2000
[ 1703.153306][   T73]      inet6_addr_add+0x30e/0xa40
[ 1703.153306][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1703.153306][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1703.153306][   T73]      netlink_rcv_skb+0x130/0x360
[ 1703.153306][   T73]      netlink_unicast+0x449/0x710
[ 1703.153306][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1703.153306][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1703.153306][   T73]      ___sys_sendmsg+0xee/0x170
[ 1703.153306][   T73]      __sys_sendmsg+0xcd/0x170
[ 1703.153306][   T73]      do_syscall_64+0xc6/0x1e0
[ 1703.153306][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1703.153306][   T73] 
[ 1703.155736][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1703.155736][   T73]      netdev_get_by_index+0x5e/0x80
[ 1703.155736][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1703.155736][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1703.155736][   T73]      ip6_route_add+0x1c/0x140
[ 1703.155736][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1703.155736][   T73]      addrconf_add_dev+0xe2/0x170
[ 1703.155736][   T73]      inet6_addr_add+0x12f/0xa40
[ 1703.155736][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1703.155736][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1703.155736][   T73]      netlink_rcv_skb+0x130/0x360
[ 1703.155736][   T73]      netlink_unicast+0x449/0x710
[ 1703.155736][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1703.155736][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1703.155736][   T73]      ___sys_sendmsg+0xee/0x170
[ 1703.155736][   T73]      __sys_sendmsg+0xcd/0x170
[ 1703.155736][   T73]      do_syscall_64+0xc6/0x1e0
[ 1703.155736][   T73] 
[ 1703.158071][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1703.158071][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1703.158071][   T73]      ipv6_find_idev+0x102/0x170
[ 1703.158071][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1703.158071][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1703.158071][   T73]      netlink_rcv_skb+0x130/0x360
[ 1703.158071][   T73]      netlink_unicast+0x449/0x710
[ 1703.158071][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1703.158071][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1703.158071][   T73]      ___sys_sendmsg+0xee/0x170
[ 1703.158071][   T73]      __sys_sendmsg+0xcd/0x170
[ 1703.158071][   T73]      do_syscall_64+0xc6/0x1e0
[ 1703.158071][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1703.158071][   T73] 
[ 1703.159958][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1703.159958][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1703.159958][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1703.159958][   T73]      ipv6_find_idev+0x102/0x170
[ 1703.159958][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1703.159958][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1703.159958][   T73]      netlink_rcv_skb+0x130/0x360
[ 1703.159958][   T73]      netlink_unicast+0x449/0x710
[ 1703.159958][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1703.159958][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1703.159958][   T73]      ___sys_sendmsg+0xee/0x170
[ 1703.159958][   T73]      __sys_sendmsg+0xcd/0x170
[ 1703.159958][   T73]      do_syscall_64+0xc6/0x1e0
[ 1703.159958][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1703.159958][   T73] 
[ 1703.162095][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1703.162394][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1703.162394][   T73]      netdev_get_by_index+0x5e/0x80
[ 1703.162394][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1703.162394][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1703.162394][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1703.162394][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1703.162394][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1703.162394][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1703.162394][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1703.162394][   T73]      addrconf_dad_begin+0x310/0x670
[ 1703.162394][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1703.162394][   T73]      process_one_work+0x84d/0x18a0
[ 1703.162394][   T73]      worker_thread+0x587/0xd30
[ 1703.162394][   T73]      kthread+0x28a/0x350
[ 1703.162394][   T73]      ret_from_fork+0x31/0x70
[ 1703.162394][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1703.162394][   T73] 
[ 1703.164719][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1703.164719][   T73]      netdev_get_by_index+0x5e/0x80
[ 1703.164719][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1703.164719][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1703.164719][   T73]      ip6_route_add+0x1c/0x140
[ 1703.164719][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1703.164719][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1703.164719][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1703.164719][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1703.164719][   T73]      netlink_rcv_skb+0x130/0x360
[ 1703.164719][   T73]      netlink_unicast+0x449/0x710
[ 1703.164719][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1703.164719][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1703.164719][   T73]      ___sys_sendmsg+0xee/0x170
[ 1703.164719][   T73]      __sys_sendmsg+0xcd/0x170
[ 1703.164719][   T73]      do_syscall_64+0xc6/0x1e0
[ 1703.164719][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1703.164719][   T73] 
[ 1703.167084][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1703.167084][   T73]      netdev_get_by_index+0x5e/0x80
[ 1703.167084][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1703.167084][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1703.167084][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1703.167084][   T73]      ipv6_add_addr+0x411/0x2000
[ 1703.167084][   T73]      inet6_addr_add+0x30e/0xa40
[ 1703.167084][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1703.167084][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1703.167084][   T73]      netlink_rcv_skb+0x130/0x360
[ 1703.167084][   T73]      netlink_unicast+0x449/0x710
[ 1703.167084][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1703.167084][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1703.167084][   T73]      ___sys_sendmsg+0xee/0x170
[ 1703.167084][   T73]      __sys_sendmsg+0xcd/0x170
[ 1703.167084][   T73]      do_syscall_64+0xc6/0x1e0
[ 1703.167084][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1703.167084][   T73] 
[ 1703.169471][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1703.169471][   T73]      netdev_get_by_index+0x5e/0x80
[ 1703.169471][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1703.169471][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1703.169471][   T73]      ip6_route_add+0x1c/0x140
[ 1703.169471][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1703.169471][   T73]      addrconf_add_dev+0xe2/0x170
[ 1703.169471][   T73]      inet6_addr_add+0x12f/0xa40
[ 1703.169471][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1703.169471][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1703.169471][   T73]      netlink_rcv_skb+0x130/0x360
[ 1703.169471][   T73]      netlink_unicast+0x449/0x710
[ 1703.169471][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1703.169471][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1703.169471][   T73]      ___sys_sendmsg+0xee/0x170
[ 1703.169471][   T73]      __sys_sendmsg+0xcd/0x170
[ 1703.169471][   T73]      do_syscall_64+0xc6/0x1e0
[ 1703.169471][   T73] 
[ 1703.171874][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1703.171874][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1703.171874][   T73]      ipv6_find_idev+0x102/0x170
[ 1703.171874][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1703.171874][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1703.171874][   T73]      netlink_rcv_skb+0x130/0x360
[ 1703.171874][   T73]      netlink_unicast+0x449/0x710
[ 1703.171874][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1703.171874][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1703.171874][   T73]      ___sys_sendmsg+0xee/0x170
[ 1703.171874][   T73]      __sys_sendmsg+0xcd/0x170
[ 1703.171874][   T73]      do_syscall_64+0xc6/0x1e0
[ 1703.171874][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1703.171874][   T73] 
[ 1703.173747][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1703.173747][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1703.173747][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1703.173747][   T73]      ipv6_find_idev+0x102/0x170
[ 1703.173747][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1703.173747][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1703.173747][   T73]      netlink_rcv_skb+0x130/0x360
[ 1703.173747][   T73]      netlink_unicast+0x449/0x710
[ 1703.173747][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1703.173747][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1703.173747][   T73]      ___sys_sendmsg+0xee/0x170
[ 1703.173747][   T73]      __sys_sendmsg+0xcd/0x170
[ 1703.173747][   T73]      do_syscall_64+0xc6/0x1e0
[ 1703.173747][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1703.173747][   T73] 
[ 1713.423788][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1713.424197][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1713.424197][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1713.424197][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1713.424197][   T73]      fib6_nh_init+0xa22/0x1580
[ 1713.424197][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1713.424197][   T73]      ip6_route_add+0x1c/0x140
[ 1713.424197][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1713.424197][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1713.424197][   T73]      netlink_rcv_skb+0x130/0x360
[ 1713.424197][   T73]      netlink_unicast+0x449/0x710
[ 1713.424197][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1713.424197][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1713.424197][   T73]      ___sys_sendmsg+0xee/0x170
[ 1713.424197][   T73]      __sys_sendmsg+0xcd/0x170
[ 1713.424197][   T73]      do_syscall_64+0xc6/0x1e0
[ 1713.424197][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1713.424197][   T73] 
[ 1713.426090][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1713.426090][   T73]      dst_init+0x84/0x4a0
[ 1713.426090][   T73]      dst_alloc+0x97/0x150
[ 1713.426090][   T73]      ip6_dst_alloc+0x23/0x90
[ 1713.426090][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1713.426090][   T73]      ip6_pol_route+0x56f/0x840
[ 1713.426090][   T73]      fib6_rule_lookup+0x456/0x630
[ 1713.426090][   T73]      ip6_route_input+0x59c/0xa50
[ 1713.426090][   T73]      ipv6_rcv+0x397/0x810
[ 1713.426090][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1713.426090][   T73]      process_backlog+0x101/0x620
[ 1713.426090][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1713.426090][   T73]      net_rx_action+0x495/0xbe0
[ 1713.426090][   T73]      __do_softirq+0x1b5/0x7f6
[ 1713.426090][   T73] 
[ 1713.427728][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1713.427728][   T73]      netdev_get_by_index+0x5e/0x80
[ 1713.427728][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1713.427728][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1713.427728][   T73]      ip6_route_add+0x1c/0x140
[ 1713.427728][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1713.427728][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1713.427728][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1713.427728][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1713.427728][   T73]      netlink_rcv_skb+0x130/0x360
[ 1713.427728][   T73]      netlink_unicast+0x449/0x710
[ 1713.427728][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1713.427728][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1713.427728][   T73]      ___sys_sendmsg+0xee/0x170
[ 1713.427728][   T73]      __sys_sendmsg+0xcd/0x170
[ 1713.427728][   T73]      do_syscall_64+0xc6/0x1e0
[ 1713.427728][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1713.427728][   T73] 
[ 1713.429735][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1713.429735][   T73]      netdev_get_by_index+0x5e/0x80
[ 1713.429735][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1713.429735][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1713.429735][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1713.429735][   T73]      ipv6_add_addr+0x411/0x2000
[ 1713.429735][   T73]      inet6_addr_add+0x30e/0xa40
[ 1713.429735][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1713.429735][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1713.429735][   T73]      netlink_rcv_skb+0x130/0x360
[ 1713.429735][   T73]      netlink_unicast+0x449/0x710
[ 1713.429735][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1713.429735][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1713.429735][   T73]      ___sys_sendmsg+0xee/0x170
[ 1713.429735][   T73]      __sys_sendmsg+0xcd/0x170
[ 1713.429735][   T73]      do_syscall_64+0xc6/0x1e0
[ 1713.429735][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1713.429735][   T73] 
[ 1713.431724][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1713.431724][   T73]      netdev_get_by_index+0x5e/0x80
[ 1713.431724][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1713.431724][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1713.431724][   T73]      ip6_route_add+0x1c/0x140
[ 1713.431724][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1713.431724][   T73]      addrconf_add_dev+0xe2/0x170
[ 1713.431724][   T73]      inet6_addr_add+0x12f/0xa40
[ 1713.431724][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1713.431724][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1713.431724][   T73]      netlink_rcv_skb+0x130/0x360
[ 1713.431724][   T73]      netlink_unicast+0x449/0x710
[ 1713.431724][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1713.431724][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1713.431724][   T73]      ___sys_sendmsg+0xee/0x170
[ 1713.431724][   T73]      __sys_sendmsg+0xcd/0x170
[ 1713.431724][   T73]      do_syscall_64+0xc6/0x1e0
[ 1713.431724][   T73] 
[ 1713.433686][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1713.433686][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1713.433686][   T73]      ipv6_find_idev+0x102/0x170
[ 1713.433686][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1713.433686][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1713.433686][   T73]      netlink_rcv_skb+0x130/0x360
[ 1713.433686][   T73]      netlink_unicast+0x449/0x710
[ 1713.433686][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1713.433686][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1713.433686][   T73]      ___sys_sendmsg+0xee/0x170
[ 1713.433686][   T73]      __sys_sendmsg+0xcd/0x170
[ 1713.433686][   T73]      do_syscall_64+0xc6/0x1e0
[ 1713.433686][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1713.433686][   T73] 
[ 1713.435222][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1713.435222][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1713.435222][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1713.435222][   T73]      ipv6_find_idev+0x102/0x170
[ 1713.435222][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1713.435222][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1713.435222][   T73]      netlink_rcv_skb+0x130/0x360
[ 1713.435222][   T73]      netlink_unicast+0x449/0x710
[ 1713.435222][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1713.435222][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1713.435222][   T73]      ___sys_sendmsg+0xee/0x170
[ 1713.435222][   T73]      __sys_sendmsg+0xcd/0x170
[ 1713.435222][   T73]      do_syscall_64+0xc6/0x1e0
[ 1713.435222][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1713.435222][   T73] 
[ 1713.436917][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1713.437196][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1713.437196][   T73]      netdev_get_by_index+0x5e/0x80
[ 1713.437196][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1713.437196][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1713.437196][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1713.437196][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1713.437196][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1713.437196][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1713.437196][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1713.437196][   T73]      addrconf_dad_begin+0x310/0x670
[ 1713.437196][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1713.437196][   T73]      process_one_work+0x84d/0x18a0
[ 1713.437196][   T73]      worker_thread+0x587/0xd30
[ 1713.437196][   T73]      kthread+0x28a/0x350
[ 1713.437196][   T73]      ret_from_fork+0x31/0x70
[ 1713.437196][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1713.437196][   T73] 
[ 1713.439100][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1713.439100][   T73]      netdev_get_by_index+0x5e/0x80
[ 1713.439100][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1713.439100][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1713.439100][   T73]      ip6_route_add+0x1c/0x140
[ 1713.439100][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1713.439100][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1713.439100][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1713.439100][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1713.439100][   T73]      netlink_rcv_skb+0x130/0x360
[ 1713.439100][   T73]      netlink_unicast+0x449/0x710
[ 1713.439100][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1713.439100][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1713.439100][   T73]      ___sys_sendmsg+0xee/0x170
[ 1713.439100][   T73]      __sys_sendmsg+0xcd/0x170
[ 1713.439100][   T73]      do_syscall_64+0xc6/0x1e0
[ 1713.439100][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1713.439100][   T73] 
[ 1713.441091][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1713.441091][   T73]      netdev_get_by_index+0x5e/0x80
[ 1713.441091][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1713.441091][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1713.441091][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1713.441091][   T73]      ipv6_add_addr+0x411/0x2000
[ 1713.441091][   T73]      inet6_addr_add+0x30e/0xa40
[ 1713.441091][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1713.441091][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1713.441091][   T73]      netlink_rcv_skb+0x130/0x360
[ 1713.441091][   T73]      netlink_unicast+0x449/0x710
[ 1713.441091][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1713.441091][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1713.441091][   T73]      ___sys_sendmsg+0xee/0x170
[ 1713.441091][   T73]      __sys_sendmsg+0xcd/0x170
[ 1713.441091][   T73]      do_syscall_64+0xc6/0x1e0
[ 1713.441091][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1713.441091][   T73] 
[ 1713.443077][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1713.443077][   T73]      netdev_get_by_index+0x5e/0x80
[ 1713.443077][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1713.443077][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1713.443077][   T73]      ip6_route_add+0x1c/0x140
[ 1713.443077][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1713.443077][   T73]      addrconf_add_dev+0xe2/0x170
[ 1713.443077][   T73]      inet6_addr_add+0x12f/0xa40
[ 1713.443077][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1713.443077][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1713.443077][   T73]      netlink_rcv_skb+0x130/0x360
[ 1713.443077][   T73]      netlink_unicast+0x449/0x710
[ 1713.443077][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1713.443077][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1713.443077][   T73]      ___sys_sendmsg+0xee/0x170
[ 1713.443077][   T73]      __sys_sendmsg+0xcd/0x170
[ 1713.443077][   T73]      do_syscall_64+0xc6/0x1e0
[ 1713.443077][   T73] 
[ 1713.445035][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1713.445035][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1713.445035][   T73]      ipv6_find_idev+0x102/0x170
[ 1713.445035][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1713.445035][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1713.445035][   T73]      netlink_rcv_skb+0x130/0x360
[ 1713.445035][   T73]      netlink_unicast+0x449/0x710
[ 1713.445035][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1713.445035][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1713.445035][   T73]      ___sys_sendmsg+0xee/0x170
[ 1713.445035][   T73]      __sys_sendmsg+0xcd/0x170
[ 1713.445035][   T73]      do_syscall_64+0xc6/0x1e0
[ 1713.445035][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1713.445035][   T73] 
[ 1713.446559][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1713.446559][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1713.446559][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1713.446559][   T73]      ipv6_find_idev+0x102/0x170
[ 1713.446559][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1713.446559][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1713.446559][   T73]      netlink_rcv_skb+0x130/0x360
[ 1713.446559][   T73]      netlink_unicast+0x449/0x710
[ 1713.446559][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1713.446559][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1713.446559][   T73]      ___sys_sendmsg+0xee/0x170
[ 1713.446559][   T73]      __sys_sendmsg+0xcd/0x170
[ 1713.446559][   T73]      do_syscall_64+0xc6/0x1e0
[ 1713.446559][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1713.446559][   T73] 
[ 1713.448237][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1713.448498][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1713.448498][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1713.448498][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1713.448498][   T73]      fib6_nh_init+0xa22/0x1580
[ 1713.448498][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1713.448498][   T73]      ip6_route_add+0x1c/0x140
[ 1713.448498][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1713.448498][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1713.448498][   T73]      netlink_rcv_skb+0x130/0x360
[ 1713.448498][   T73]      netlink_unicast+0x449/0x710
[ 1713.448498][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1713.448498][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1713.448498][   T73]      ___sys_sendmsg+0xee/0x170
[ 1713.448498][   T73]      __sys_sendmsg+0xcd/0x170
[ 1713.448498][   T73]      do_syscall_64+0xc6/0x1e0
[ 1713.448498][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1713.448498][   T73] 
[ 1713.450560][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1713.450560][   T73]      dst_init+0x84/0x4a0
[ 1713.450560][   T73]      dst_alloc+0x97/0x150
[ 1713.450560][   T73]      ip6_dst_alloc+0x23/0x90
[ 1713.450560][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1713.450560][   T73]      ip6_pol_route+0x56f/0x840
[ 1713.450560][   T73]      fib6_rule_lookup+0x456/0x630
[ 1713.450560][   T73]      ip6_route_input+0x59c/0xa50
[ 1713.450560][   T73]      ipv6_rcv+0x397/0x810
[ 1713.450560][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1713.450560][   T73]      process_backlog+0x101/0x620
[ 1713.450560][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1713.450560][   T73]      net_rx_action+0x495/0xbe0
[ 1713.450560][   T73]      __do_softirq+0x1b5/0x7f6
[ 1713.450560][   T73] 
[ 1713.452367][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1713.452367][   T73]      netdev_get_by_index+0x5e/0x80
[ 1713.452367][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1713.452367][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1713.452367][   T73]      ip6_route_add+0x1c/0x140
[ 1713.452367][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1713.452367][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1713.452367][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1713.452367][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1713.452367][   T73]      netlink_rcv_skb+0x130/0x360
[ 1713.452367][   T73]      netlink_unicast+0x449/0x710
[ 1713.452367][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1713.452367][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1713.452367][   T73]      ___sys_sendmsg+0xee/0x170
[ 1713.452367][   T73]      __sys_sendmsg+0xcd/0x170
[ 1713.452367][   T73]      do_syscall_64+0xc6/0x1e0
[ 1713.452367][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1713.452367][   T73] 
[ 1713.454540][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1713.454540][   T73]      netdev_get_by_index+0x5e/0x80
[ 1713.454540][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1713.454540][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1713.454540][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1713.454540][   T73]      ipv6_add_addr+0x411/0x2000
[ 1713.454540][   T73]      inet6_addr_add+0x30e/0xa40
[ 1713.454540][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1713.454540][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1713.454540][   T73]      netlink_rcv_skb+0x130/0x360
[ 1713.454540][   T73]      netlink_unicast+0x449/0x710
[ 1713.454540][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1713.454540][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1713.454540][   T73]      ___sys_sendmsg+0xee/0x170
[ 1713.454540][   T73]      __sys_sendmsg+0xcd/0x170
[ 1713.454540][   T73]      do_syscall_64+0xc6/0x1e0
[ 1713.454540][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1713.454540][   T73] 
[ 1713.456842][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1713.456842][   T73]      netdev_get_by_index+0x5e/0x80
[ 1713.456842][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1713.456842][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1713.456842][   T73]      ip6_route_add+0x1c/0x140
[ 1713.456842][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1713.456842][   T73]      addrconf_add_dev+0xe2/0x170
[ 1713.456842][   T73]      inet6_addr_add+0x12f/0xa40
[ 1713.456842][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1713.456842][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1713.456842][   T73]      netlink_rcv_skb+0x130/0x360
[ 1713.456842][   T73]      netlink_unicast+0x449/0x710
[ 1713.456842][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1713.456842][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1713.456842][   T73]      ___sys_sendmsg+0xee/0x170
[ 1713.456842][   T73]      __sys_sendmsg+0xcd/0x170
[ 1713.456842][   T73]      do_syscall_64+0xc6/0x1e0
[ 1713.456842][   T73] 
[ 1713.458933][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1713.458933][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1713.458933][   T73]      ipv6_find_idev+0x102/0x170
[ 1713.458933][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1713.458933][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1713.458933][   T73]      netlink_rcv_skb+0x130/0x360
[ 1713.458933][   T73]      netlink_unicast+0x449/0x710
[ 1713.458933][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1713.458933][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1713.458933][   T73]      ___sys_sendmsg+0xee/0x170
[ 1713.458933][   T73]      __sys_sendmsg+0xcd/0x170
[ 1713.458933][   T73]      do_syscall_64+0xc6/0x1e0
[ 1713.458933][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1713.458933][   T73] 
[ 1713.460649][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1713.460649][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1713.460649][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1713.460649][   T73]      ipv6_find_idev+0x102/0x170
[ 1713.460649][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1713.460649][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1713.460649][   T73]      netlink_rcv_skb+0x130/0x360
[ 1713.460649][   T73]      netlink_unicast+0x449/0x710
[ 1713.460649][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1713.460649][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1713.460649][   T73]      ___sys_sendmsg+0xee/0x170
[ 1713.460649][   T73]      __sys_sendmsg+0xcd/0x170
[ 1713.460649][   T73]      do_syscall_64+0xc6/0x1e0
[ 1713.460649][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1713.460649][   T73] 
[ 1713.462564][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1713.463272][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1713.463272][   T73]      netdev_get_by_index+0x5e/0x80
[ 1713.463272][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1713.463272][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1713.463272][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1713.463272][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1713.463272][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1713.463272][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1713.463272][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1713.463272][   T73]      addrconf_dad_begin+0x310/0x670
[ 1713.463272][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1713.463272][   T73]      process_one_work+0x84d/0x18a0
[ 1713.463272][   T73]      worker_thread+0x587/0xd30
[ 1713.463272][   T73]      kthread+0x28a/0x350
[ 1713.463272][   T73]      ret_from_fork+0x31/0x70
[ 1713.463272][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1713.463272][   T73] 
[ 1713.465181][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1713.465181][   T73]      netdev_get_by_index+0x5e/0x80
[ 1713.465181][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1713.465181][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1713.465181][   T73]      ip6_route_add+0x1c/0x140
[ 1713.465181][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1713.465181][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1713.465181][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1713.465181][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1713.465181][   T73]      netlink_rcv_skb+0x130/0x360
[ 1713.465181][   T73]      netlink_unicast+0x449/0x710
[ 1713.465181][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1713.465181][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1713.465181][   T73]      ___sys_sendmsg+0xee/0x170
[ 1713.465181][   T73]      __sys_sendmsg+0xcd/0x170
[ 1713.465181][   T73]      do_syscall_64+0xc6/0x1e0
[ 1713.465181][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1713.465181][   T73] 
[ 1713.467318][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1713.467318][   T73]      netdev_get_by_index+0x5e/0x80
[ 1713.467318][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1713.467318][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1713.467318][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1713.467318][   T73]      ipv6_add_addr+0x411/0x2000
[ 1713.467318][   T73]      inet6_addr_add+0x30e/0xa40
[ 1713.467318][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1713.467318][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1713.467318][   T73]      netlink_rcv_skb+0x130/0x360
[ 1713.467318][   T73]      netlink_unicast+0x449/0x710
[ 1713.467318][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1713.467318][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1713.467318][   T73]      ___sys_sendmsg+0xee/0x170
[ 1713.467318][   T73]      __sys_sendmsg+0xcd/0x170
[ 1713.467318][   T73]      do_syscall_64+0xc6/0x1e0
[ 1713.467318][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1713.467318][   T73] 
[ 1713.469508][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1713.469508][   T73]      netdev_get_by_index+0x5e/0x80
[ 1713.469508][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1713.469508][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1713.469508][   T73]      ip6_route_add+0x1c/0x140
[ 1713.469508][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1713.469508][   T73]      addrconf_add_dev+0xe2/0x170
[ 1713.469508][   T73]      inet6_addr_add+0x12f/0xa40
[ 1713.469508][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1713.469508][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1713.469508][   T73]      netlink_rcv_skb+0x130/0x360
[ 1713.469508][   T73]      netlink_unicast+0x449/0x710
[ 1713.469508][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1713.469508][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1713.469508][   T73]      ___sys_sendmsg+0xee/0x170
[ 1713.469508][   T73]      __sys_sendmsg+0xcd/0x170
[ 1713.469508][   T73]      do_syscall_64+0xc6/0x1e0
[ 1713.469508][   T73] 
[ 1713.471711][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1713.471711][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1713.471711][   T73]      ipv6_find_idev+0x102/0x170
[ 1713.471711][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1713.471711][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1713.471711][   T73]      netlink_rcv_skb+0x130/0x360
[ 1713.471711][   T73]      netlink_unicast+0x449/0x710
[ 1713.471711][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1713.471711][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1713.471711][   T73]      ___sys_sendmsg+0xee/0x170
[ 1713.471711][   T73]      __sys_sendmsg+0xcd/0x170
[ 1713.471711][   T73]      do_syscall_64+0xc6/0x1e0
[ 1713.471711][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1713.471711][   T73] 
[ 1713.473430][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1713.473430][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1713.473430][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1713.473430][   T73]      ipv6_find_idev+0x102/0x170
[ 1713.473430][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1713.473430][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1713.473430][   T73]      netlink_rcv_skb+0x130/0x360
[ 1713.473430][   T73]      netlink_unicast+0x449/0x710
[ 1713.473430][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1713.473430][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1713.473430][   T73]      ___sys_sendmsg+0xee/0x170
[ 1713.473430][   T73]      __sys_sendmsg+0xcd/0x170
[ 1713.473430][   T73]      do_syscall_64+0xc6/0x1e0
[ 1713.473430][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1713.473430][   T73] 
[ 1723.719823][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1723.720237][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1723.720237][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1723.720237][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1723.720237][   T73]      fib6_nh_init+0xa22/0x1580
[ 1723.720237][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1723.720237][   T73]      ip6_route_add+0x1c/0x140
[ 1723.720237][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1723.720237][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1723.720237][   T73]      netlink_rcv_skb+0x130/0x360
[ 1723.720237][   T73]      netlink_unicast+0x449/0x710
[ 1723.720237][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1723.720237][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1723.720237][   T73]      ___sys_sendmsg+0xee/0x170
[ 1723.720237][   T73]      __sys_sendmsg+0xcd/0x170
[ 1723.720237][   T73]      do_syscall_64+0xc6/0x1e0
[ 1723.720237][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1723.720237][   T73] 
[ 1723.722147][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1723.722147][   T73]      dst_init+0x84/0x4a0
[ 1723.722147][   T73]      dst_alloc+0x97/0x150
[ 1723.722147][   T73]      ip6_dst_alloc+0x23/0x90
[ 1723.722147][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1723.722147][   T73]      ip6_pol_route+0x56f/0x840
[ 1723.722147][   T73]      fib6_rule_lookup+0x456/0x630
[ 1723.722147][   T73]      ip6_route_input+0x59c/0xa50
[ 1723.722147][   T73]      ipv6_rcv+0x397/0x810
[ 1723.722147][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1723.722147][   T73]      process_backlog+0x101/0x620
[ 1723.722147][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1723.722147][   T73]      net_rx_action+0x495/0xbe0
[ 1723.722147][   T73]      __do_softirq+0x1b5/0x7f6
[ 1723.722147][   T73] 
[ 1723.723799][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1723.723799][   T73]      netdev_get_by_index+0x5e/0x80
[ 1723.723799][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1723.723799][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1723.723799][   T73]      ip6_route_add+0x1c/0x140
[ 1723.723799][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1723.723799][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1723.723799][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1723.723799][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1723.723799][   T73]      netlink_rcv_skb+0x130/0x360
[ 1723.723799][   T73]      netlink_unicast+0x449/0x710
[ 1723.723799][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1723.723799][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1723.723799][   T73]      ___sys_sendmsg+0xee/0x170
[ 1723.723799][   T73]      __sys_sendmsg+0xcd/0x170
[ 1723.723799][   T73]      do_syscall_64+0xc6/0x1e0
[ 1723.723799][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1723.723799][   T73] 
[ 1723.725814][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1723.725814][   T73]      netdev_get_by_index+0x5e/0x80
[ 1723.725814][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1723.725814][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1723.725814][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1723.725814][   T73]      ipv6_add_addr+0x411/0x2000
[ 1723.725814][   T73]      inet6_addr_add+0x30e/0xa40
[ 1723.725814][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1723.725814][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1723.725814][   T73]      netlink_rcv_skb+0x130/0x360
[ 1723.725814][   T73]      netlink_unicast+0x449/0x710
[ 1723.725814][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1723.725814][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1723.725814][   T73]      ___sys_sendmsg+0xee/0x170
[ 1723.725814][   T73]      __sys_sendmsg+0xcd/0x170
[ 1723.725814][   T73]      do_syscall_64+0xc6/0x1e0
[ 1723.725814][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1723.725814][   T73] 
[ 1723.727850][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1723.727850][   T73]      netdev_get_by_index+0x5e/0x80
[ 1723.727850][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1723.727850][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1723.727850][   T73]      ip6_route_add+0x1c/0x140
[ 1723.727850][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1723.727850][   T73]      addrconf_add_dev+0xe2/0x170
[ 1723.727850][   T73]      inet6_addr_add+0x12f/0xa40
[ 1723.727850][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1723.727850][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1723.727850][   T73]      netlink_rcv_skb+0x130/0x360
[ 1723.727850][   T73]      netlink_unicast+0x449/0x710
[ 1723.727850][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1723.727850][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1723.727850][   T73]      ___sys_sendmsg+0xee/0x170
[ 1723.727850][   T73]      __sys_sendmsg+0xcd/0x170
[ 1723.727850][   T73]      do_syscall_64+0xc6/0x1e0
[ 1723.727850][   T73] 
[ 1723.729831][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1723.729831][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1723.729831][   T73]      ipv6_find_idev+0x102/0x170
[ 1723.729831][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1723.729831][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1723.729831][   T73]      netlink_rcv_skb+0x130/0x360
[ 1723.729831][   T73]      netlink_unicast+0x449/0x710
[ 1723.729831][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1723.729831][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1723.729831][   T73]      ___sys_sendmsg+0xee/0x170
[ 1723.729831][   T73]      __sys_sendmsg+0xcd/0x170
[ 1723.729831][   T73]      do_syscall_64+0xc6/0x1e0
[ 1723.729831][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1723.729831][   T73] 
[ 1723.731386][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1723.731386][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1723.731386][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1723.731386][   T73]      ipv6_find_idev+0x102/0x170
[ 1723.731386][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1723.731386][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1723.731386][   T73]      netlink_rcv_skb+0x130/0x360
[ 1723.731386][   T73]      netlink_unicast+0x449/0x710
[ 1723.731386][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1723.731386][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1723.731386][   T73]      ___sys_sendmsg+0xee/0x170
[ 1723.731386][   T73]      __sys_sendmsg+0xcd/0x170
[ 1723.731386][   T73]      do_syscall_64+0xc6/0x1e0
[ 1723.731386][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1723.731386][   T73] 
[ 1723.733100][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1723.733403][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1723.733403][   T73]      netdev_get_by_index+0x5e/0x80
[ 1723.733403][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1723.733403][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1723.733403][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1723.733403][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1723.733403][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1723.733403][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1723.733403][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1723.733403][   T73]      addrconf_dad_begin+0x310/0x670
[ 1723.733403][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1723.733403][   T73]      process_one_work+0x84d/0x18a0
[ 1723.733403][   T73]      worker_thread+0x587/0xd30
[ 1723.733403][   T73]      kthread+0x28a/0x350
[ 1723.733403][   T73]      ret_from_fork+0x31/0x70
[ 1723.733403][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1723.733403][   T73] 
[ 1723.735335][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1723.735335][   T73]      netdev_get_by_index+0x5e/0x80
[ 1723.735335][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1723.735335][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1723.735335][   T73]      ip6_route_add+0x1c/0x140
[ 1723.735335][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1723.735335][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1723.735335][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1723.735335][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1723.735335][   T73]      netlink_rcv_skb+0x130/0x360
[ 1723.735335][   T73]      netlink_unicast+0x449/0x710
[ 1723.735335][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1723.735335][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1723.735335][   T73]      ___sys_sendmsg+0xee/0x170
[ 1723.735335][   T73]      __sys_sendmsg+0xcd/0x170
[ 1723.735335][   T73]      do_syscall_64+0xc6/0x1e0
[ 1723.735335][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1723.735335][   T73] 
[ 1723.737354][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1723.737354][   T73]      netdev_get_by_index+0x5e/0x80
[ 1723.737354][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1723.737354][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1723.737354][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1723.737354][   T73]      ipv6_add_addr+0x411/0x2000
[ 1723.737354][   T73]      inet6_addr_add+0x30e/0xa40
[ 1723.737354][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1723.737354][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1723.737354][   T73]      netlink_rcv_skb+0x130/0x360
[ 1723.737354][   T73]      netlink_unicast+0x449/0x710
[ 1723.737354][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1723.737354][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1723.737354][   T73]      ___sys_sendmsg+0xee/0x170
[ 1723.737354][   T73]      __sys_sendmsg+0xcd/0x170
[ 1723.737354][   T73]      do_syscall_64+0xc6/0x1e0
[ 1723.737354][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1723.737354][   T73] 
[ 1723.739367][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1723.739367][   T73]      netdev_get_by_index+0x5e/0x80
[ 1723.739367][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1723.739367][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1723.739367][   T73]      ip6_route_add+0x1c/0x140
[ 1723.739367][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1723.739367][   T73]      addrconf_add_dev+0xe2/0x170
[ 1723.739367][   T73]      inet6_addr_add+0x12f/0xa40
[ 1723.739367][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1723.739367][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1723.739367][   T73]      netlink_rcv_skb+0x130/0x360
[ 1723.739367][   T73]      netlink_unicast+0x449/0x710
[ 1723.739367][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1723.739367][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1723.739367][   T73]      ___sys_sendmsg+0xee/0x170
[ 1723.739367][   T73]      __sys_sendmsg+0xcd/0x170
[ 1723.739367][   T73]      do_syscall_64+0xc6/0x1e0
[ 1723.739367][   T73] 
[ 1723.741345][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1723.741345][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1723.741345][   T73]      ipv6_find_idev+0x102/0x170
[ 1723.741345][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1723.741345][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1723.741345][   T73]      netlink_rcv_skb+0x130/0x360
[ 1723.741345][   T73]      netlink_unicast+0x449/0x710
[ 1723.741345][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1723.741345][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1723.741345][   T73]      ___sys_sendmsg+0xee/0x170
[ 1723.741345][   T73]      __sys_sendmsg+0xcd/0x170
[ 1723.741345][   T73]      do_syscall_64+0xc6/0x1e0
[ 1723.741345][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1723.741345][   T73] 
[ 1723.742895][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1723.742895][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1723.742895][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1723.742895][   T73]      ipv6_find_idev+0x102/0x170
[ 1723.742895][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1723.742895][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1723.742895][   T73]      netlink_rcv_skb+0x130/0x360
[ 1723.742895][   T73]      netlink_unicast+0x449/0x710
[ 1723.742895][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1723.742895][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1723.742895][   T73]      ___sys_sendmsg+0xee/0x170
[ 1723.742895][   T73]      __sys_sendmsg+0xcd/0x170
[ 1723.742895][   T73]      do_syscall_64+0xc6/0x1e0
[ 1723.742895][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1723.742895][   T73] 
[ 1723.744596][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1723.744889][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1723.744889][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1723.744889][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1723.744889][   T73]      fib6_nh_init+0xa22/0x1580
[ 1723.744889][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1723.744889][   T73]      ip6_route_add+0x1c/0x140
[ 1723.744889][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1723.744889][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1723.744889][   T73]      netlink_rcv_skb+0x130/0x360
[ 1723.744889][   T73]      netlink_unicast+0x449/0x710
[ 1723.744889][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1723.744889][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1723.744889][   T73]      ___sys_sendmsg+0xee/0x170
[ 1723.744889][   T73]      __sys_sendmsg+0xcd/0x170
[ 1723.744889][   T73]      do_syscall_64+0xc6/0x1e0
[ 1723.744889][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1723.744889][   T73] 
[ 1723.746981][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1723.746981][   T73]      dst_init+0x84/0x4a0
[ 1723.746981][   T73]      dst_alloc+0x97/0x150
[ 1723.746981][   T73]      ip6_dst_alloc+0x23/0x90
[ 1723.746981][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1723.746981][   T73]      ip6_pol_route+0x56f/0x840
[ 1723.746981][   T73]      fib6_rule_lookup+0x456/0x630
[ 1723.746981][   T73]      ip6_route_input+0x59c/0xa50
[ 1723.746981][   T73]      ipv6_rcv+0x397/0x810
[ 1723.746981][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1723.746981][   T73]      process_backlog+0x101/0x620
[ 1723.746981][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1723.746981][   T73]      net_rx_action+0x495/0xbe0
[ 1723.746981][   T73]      __do_softirq+0x1b5/0x7f6
[ 1723.746981][   T73] 
[ 1723.748814][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1723.748814][   T73]      netdev_get_by_index+0x5e/0x80
[ 1723.748814][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1723.748814][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1723.748814][   T73]      ip6_route_add+0x1c/0x140
[ 1723.748814][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1723.748814][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1723.748814][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1723.748814][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1723.748814][   T73]      netlink_rcv_skb+0x130/0x360
[ 1723.748814][   T73]      netlink_unicast+0x449/0x710
[ 1723.748814][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1723.748814][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1723.748814][   T73]      ___sys_sendmsg+0xee/0x170
[ 1723.748814][   T73]      __sys_sendmsg+0xcd/0x170
[ 1723.748814][   T73]      do_syscall_64+0xc6/0x1e0
[ 1723.748814][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1723.748814][   T73] 
[ 1723.751121][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1723.751121][   T73]      netdev_get_by_index+0x5e/0x80
[ 1723.751121][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1723.751121][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1723.751121][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1723.751121][   T73]      ipv6_add_addr+0x411/0x2000
[ 1723.751121][   T73]      inet6_addr_add+0x30e/0xa40
[ 1723.751121][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1723.751121][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1723.751121][   T73]      netlink_rcv_skb+0x130/0x360
[ 1723.751121][   T73]      netlink_unicast+0x449/0x710
[ 1723.751121][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1723.751121][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1723.751121][   T73]      ___sys_sendmsg+0xee/0x170
[ 1723.751121][   T73]      __sys_sendmsg+0xcd/0x170
[ 1723.751121][   T73]      do_syscall_64+0xc6/0x1e0
[ 1723.751121][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1723.751121][   T73] 
[ 1723.753368][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1723.753368][   T73]      netdev_get_by_index+0x5e/0x80
[ 1723.753368][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1723.753368][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1723.753368][   T73]      ip6_route_add+0x1c/0x140
[ 1723.753368][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1723.753368][   T73]      addrconf_add_dev+0xe2/0x170
[ 1723.753368][   T73]      inet6_addr_add+0x12f/0xa40
[ 1723.753368][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1723.753368][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1723.753368][   T73]      netlink_rcv_skb+0x130/0x360
[ 1723.753368][   T73]      netlink_unicast+0x449/0x710
[ 1723.753368][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1723.753368][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1723.753368][   T73]      ___sys_sendmsg+0xee/0x170
[ 1723.753368][   T73]      __sys_sendmsg+0xcd/0x170
[ 1723.753368][   T73]      do_syscall_64+0xc6/0x1e0
[ 1723.753368][   T73] 
[ 1723.755536][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1723.755536][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1723.755536][   T73]      ipv6_find_idev+0x102/0x170
[ 1723.755536][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1723.755536][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1723.755536][   T73]      netlink_rcv_skb+0x130/0x360
[ 1723.755536][   T73]      netlink_unicast+0x449/0x710
[ 1723.755536][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1723.755536][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1723.755536][   T73]      ___sys_sendmsg+0xee/0x170
[ 1723.755536][   T73]      __sys_sendmsg+0xcd/0x170
[ 1723.755536][   T73]      do_syscall_64+0xc6/0x1e0
[ 1723.755536][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1723.755536][   T73] 
[ 1723.757266][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1723.757266][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1723.757266][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1723.757266][   T73]      ipv6_find_idev+0x102/0x170
[ 1723.757266][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1723.757266][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1723.757266][   T73]      netlink_rcv_skb+0x130/0x360
[ 1723.757266][   T73]      netlink_unicast+0x449/0x710
[ 1723.757266][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1723.757266][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1723.757266][   T73]      ___sys_sendmsg+0xee/0x170
[ 1723.757266][   T73]      __sys_sendmsg+0xcd/0x170
[ 1723.757266][   T73]      do_syscall_64+0xc6/0x1e0
[ 1723.757266][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1723.757266][   T73] 
[ 1723.759210][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1723.759578][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1723.759578][   T73]      netdev_get_by_index+0x5e/0x80
[ 1723.759578][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1723.759578][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1723.759578][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1723.759578][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1723.759578][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1723.759578][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1723.759578][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1723.759578][   T73]      addrconf_dad_begin+0x310/0x670
[ 1723.759578][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1723.759578][   T73]      process_one_work+0x84d/0x18a0
[ 1723.759578][   T73]      worker_thread+0x587/0xd30
[ 1723.759578][   T73]      kthread+0x28a/0x350
[ 1723.759578][   T73]      ret_from_fork+0x31/0x70
[ 1723.759578][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1723.759578][   T73] 
[ 1723.761805][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1723.761805][   T73]      netdev_get_by_index+0x5e/0x80
[ 1723.761805][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1723.761805][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1723.761805][   T73]      ip6_route_add+0x1c/0x140
[ 1723.761805][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1723.761805][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1723.761805][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1723.761805][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1723.761805][   T73]      netlink_rcv_skb+0x130/0x360
[ 1723.761805][   T73]      netlink_unicast+0x449/0x710
[ 1723.761805][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1723.761805][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1723.761805][   T73]      ___sys_sendmsg+0xee/0x170
[ 1723.761805][   T73]      __sys_sendmsg+0xcd/0x170
[ 1723.761805][   T73]      do_syscall_64+0xc6/0x1e0
[ 1723.761805][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1723.761805][   T73] 
[ 1723.764060][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1723.764060][   T73]      netdev_get_by_index+0x5e/0x80
[ 1723.764060][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1723.764060][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1723.764060][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1723.764060][   T73]      ipv6_add_addr+0x411/0x2000
[ 1723.764060][   T73]      inet6_addr_add+0x30e/0xa40
[ 1723.764060][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1723.764060][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1723.764060][   T73]      netlink_rcv_skb+0x130/0x360
[ 1723.764060][   T73]      netlink_unicast+0x449/0x710
[ 1723.764060][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1723.764060][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1723.764060][   T73]      ___sys_sendmsg+0xee/0x170
[ 1723.764060][   T73]      __sys_sendmsg+0xcd/0x170
[ 1723.764060][   T73]      do_syscall_64+0xc6/0x1e0
[ 1723.764060][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1723.764060][   T73] 
[ 1723.766254][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1723.766254][   T73]      netdev_get_by_index+0x5e/0x80
[ 1723.766254][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1723.766254][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1723.766254][   T73]      ip6_route_add+0x1c/0x140
[ 1723.766254][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1723.766254][   T73]      addrconf_add_dev+0xe2/0x170
[ 1723.766254][   T73]      inet6_addr_add+0x12f/0xa40
[ 1723.766254][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1723.766254][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1723.766254][   T73]      netlink_rcv_skb+0x130/0x360
[ 1723.766254][   T73]      netlink_unicast+0x449/0x710
[ 1723.766254][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1723.766254][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1723.766254][   T73]      ___sys_sendmsg+0xee/0x170
[ 1723.766254][   T73]      __sys_sendmsg+0xcd/0x170
[ 1723.766254][   T73]      do_syscall_64+0xc6/0x1e0
[ 1723.766254][   T73] 
[ 1723.768485][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1723.768485][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1723.768485][   T73]      ipv6_find_idev+0x102/0x170
[ 1723.768485][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1723.768485][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1723.768485][   T73]      netlink_rcv_skb+0x130/0x360
[ 1723.768485][   T73]      netlink_unicast+0x449/0x710
[ 1723.768485][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1723.768485][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1723.768485][   T73]      ___sys_sendmsg+0xee/0x170
[ 1723.768485][   T73]      __sys_sendmsg+0xcd/0x170
[ 1723.768485][   T73]      do_syscall_64+0xc6/0x1e0
[ 1723.768485][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1723.768485][   T73] 
[ 1723.770307][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1723.770307][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1723.770307][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1723.770307][   T73]      ipv6_find_idev+0x102/0x170
[ 1723.770307][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1723.770307][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1723.770307][   T73]      netlink_rcv_skb+0x130/0x360
[ 1723.770307][   T73]      netlink_unicast+0x449/0x710
[ 1723.770307][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1723.770307][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1723.770307][   T73]      ___sys_sendmsg+0xee/0x170
[ 1723.770307][   T73]      __sys_sendmsg+0xcd/0x170
[ 1723.770307][   T73]      do_syscall_64+0xc6/0x1e0
[ 1723.770307][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1723.770307][   T73] 
[ 1733.775722][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1733.776133][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1733.776133][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1733.776133][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1733.776133][   T73]      fib6_nh_init+0xa22/0x1580
[ 1733.776133][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1733.776133][   T73]      ip6_route_add+0x1c/0x140
[ 1733.776133][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1733.776133][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1733.776133][   T73]      netlink_rcv_skb+0x130/0x360
[ 1733.776133][   T73]      netlink_unicast+0x449/0x710
[ 1733.776133][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1733.776133][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1733.776133][   T73]      ___sys_sendmsg+0xee/0x170
[ 1733.776133][   T73]      __sys_sendmsg+0xcd/0x170
[ 1733.776133][   T73]      do_syscall_64+0xc6/0x1e0
[ 1733.776133][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1733.776133][   T73] 
[ 1733.778046][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1733.778046][   T73]      dst_init+0x84/0x4a0
[ 1733.778046][   T73]      dst_alloc+0x97/0x150
[ 1733.778046][   T73]      ip6_dst_alloc+0x23/0x90
[ 1733.778046][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1733.778046][   T73]      ip6_pol_route+0x56f/0x840
[ 1733.778046][   T73]      fib6_rule_lookup+0x456/0x630
[ 1733.778046][   T73]      ip6_route_input+0x59c/0xa50
[ 1733.778046][   T73]      ipv6_rcv+0x397/0x810
[ 1733.778046][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1733.778046][   T73]      process_backlog+0x101/0x620
[ 1733.778046][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1733.778046][   T73]      net_rx_action+0x495/0xbe0
[ 1733.778046][   T73]      __do_softirq+0x1b5/0x7f6
[ 1733.778046][   T73] 
[ 1733.779698][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1733.779698][   T73]      netdev_get_by_index+0x5e/0x80
[ 1733.779698][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1733.779698][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1733.779698][   T73]      ip6_route_add+0x1c/0x140
[ 1733.779698][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1733.779698][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1733.779698][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1733.779698][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1733.779698][   T73]      netlink_rcv_skb+0x130/0x360
[ 1733.779698][   T73]      netlink_unicast+0x449/0x710
[ 1733.779698][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1733.779698][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1733.779698][   T73]      ___sys_sendmsg+0xee/0x170
[ 1733.779698][   T73]      __sys_sendmsg+0xcd/0x170
[ 1733.779698][   T73]      do_syscall_64+0xc6/0x1e0
[ 1733.779698][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1733.779698][   T73] 
[ 1733.781733][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1733.781733][   T73]      netdev_get_by_index+0x5e/0x80
[ 1733.781733][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1733.781733][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1733.781733][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1733.781733][   T73]      ipv6_add_addr+0x411/0x2000
[ 1733.781733][   T73]      inet6_addr_add+0x30e/0xa40
[ 1733.781733][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1733.781733][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1733.781733][   T73]      netlink_rcv_skb+0x130/0x360
[ 1733.781733][   T73]      netlink_unicast+0x449/0x710
[ 1733.781733][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1733.781733][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1733.781733][   T73]      ___sys_sendmsg+0xee/0x170
[ 1733.781733][   T73]      __sys_sendmsg+0xcd/0x170
[ 1733.781733][   T73]      do_syscall_64+0xc6/0x1e0
[ 1733.781733][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1733.781733][   T73] 
[ 1733.783754][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1733.783754][   T73]      netdev_get_by_index+0x5e/0x80
[ 1733.783754][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1733.783754][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1733.783754][   T73]      ip6_route_add+0x1c/0x140
[ 1733.783754][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1733.783754][   T73]      addrconf_add_dev+0xe2/0x170
[ 1733.783754][   T73]      inet6_addr_add+0x12f/0xa40
[ 1733.783754][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1733.783754][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1733.783754][   T73]      netlink_rcv_skb+0x130/0x360
[ 1733.783754][   T73]      netlink_unicast+0x449/0x710
[ 1733.783754][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1733.783754][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1733.783754][   T73]      ___sys_sendmsg+0xee/0x170
[ 1733.783754][   T73]      __sys_sendmsg+0xcd/0x170
[ 1733.783754][   T73]      do_syscall_64+0xc6/0x1e0
[ 1733.783754][   T73] 
[ 1733.785773][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1733.785773][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1733.785773][   T73]      ipv6_find_idev+0x102/0x170
[ 1733.785773][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1733.785773][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1733.785773][   T73]      netlink_rcv_skb+0x130/0x360
[ 1733.785773][   T73]      netlink_unicast+0x449/0x710
[ 1733.785773][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1733.785773][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1733.785773][   T73]      ___sys_sendmsg+0xee/0x170
[ 1733.785773][   T73]      __sys_sendmsg+0xcd/0x170
[ 1733.785773][   T73]      do_syscall_64+0xc6/0x1e0
[ 1733.785773][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1733.785773][   T73] 
[ 1733.787336][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1733.787336][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1733.787336][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1733.787336][   T73]      ipv6_find_idev+0x102/0x170
[ 1733.787336][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1733.787336][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1733.787336][   T73]      netlink_rcv_skb+0x130/0x360
[ 1733.787336][   T73]      netlink_unicast+0x449/0x710
[ 1733.787336][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1733.787336][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1733.787336][   T73]      ___sys_sendmsg+0xee/0x170
[ 1733.787336][   T73]      __sys_sendmsg+0xcd/0x170
[ 1733.787336][   T73]      do_syscall_64+0xc6/0x1e0
[ 1733.787336][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1733.787336][   T73] 
[ 1733.789064][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1733.789355][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1733.789355][   T73]      netdev_get_by_index+0x5e/0x80
[ 1733.789355][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1733.789355][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1733.789355][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1733.789355][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1733.789355][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1733.789355][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1733.789355][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1733.789355][   T73]      addrconf_dad_begin+0x310/0x670
[ 1733.789355][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1733.789355][   T73]      process_one_work+0x84d/0x18a0
[ 1733.789355][   T73]      worker_thread+0x587/0xd30
[ 1733.789355][   T73]      kthread+0x28a/0x350
[ 1733.789355][   T73]      ret_from_fork+0x31/0x70
[ 1733.789355][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1733.789355][   T73] 
[ 1733.791294][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1733.791294][   T73]      netdev_get_by_index+0x5e/0x80
[ 1733.791294][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1733.791294][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1733.791294][   T73]      ip6_route_add+0x1c/0x140
[ 1733.791294][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1733.791294][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1733.791294][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1733.791294][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1733.791294][   T73]      netlink_rcv_skb+0x130/0x360
[ 1733.791294][   T73]      netlink_unicast+0x449/0x710
[ 1733.791294][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1733.791294][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1733.791294][   T73]      ___sys_sendmsg+0xee/0x170
[ 1733.791294][   T73]      __sys_sendmsg+0xcd/0x170
[ 1733.791294][   T73]      do_syscall_64+0xc6/0x1e0
[ 1733.791294][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1733.791294][   T73] 
[ 1733.793316][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1733.793316][   T73]      netdev_get_by_index+0x5e/0x80
[ 1733.793316][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1733.793316][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1733.793316][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1733.793316][   T73]      ipv6_add_addr+0x411/0x2000
[ 1733.793316][   T73]      inet6_addr_add+0x30e/0xa40
[ 1733.793316][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1733.793316][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1733.793316][   T73]      netlink_rcv_skb+0x130/0x360
[ 1733.793316][   T73]      netlink_unicast+0x449/0x710
[ 1733.793316][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1733.793316][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1733.793316][   T73]      ___sys_sendmsg+0xee/0x170
[ 1733.793316][   T73]      __sys_sendmsg+0xcd/0x170
[ 1733.793316][   T73]      do_syscall_64+0xc6/0x1e0
[ 1733.793316][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1733.793316][   T73] 
[ 1733.795339][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1733.795339][   T73]      netdev_get_by_index+0x5e/0x80
[ 1733.795339][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1733.795339][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1733.795339][   T73]      ip6_route_add+0x1c/0x140
[ 1733.795339][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1733.795339][   T73]      addrconf_add_dev+0xe2/0x170
[ 1733.795339][   T73]      inet6_addr_add+0x12f/0xa40
[ 1733.795339][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1733.795339][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1733.795339][   T73]      netlink_rcv_skb+0x130/0x360
[ 1733.795339][   T73]      netlink_unicast+0x449/0x710
[ 1733.795339][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1733.795339][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1733.795339][   T73]      ___sys_sendmsg+0xee/0x170
[ 1733.795339][   T73]      __sys_sendmsg+0xcd/0x170
[ 1733.795339][   T73]      do_syscall_64+0xc6/0x1e0
[ 1733.795339][   T73] 
[ 1733.797339][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1733.797339][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1733.797339][   T73]      ipv6_find_idev+0x102/0x170
[ 1733.797339][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1733.797339][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1733.797339][   T73]      netlink_rcv_skb+0x130/0x360
[ 1733.797339][   T73]      netlink_unicast+0x449/0x710
[ 1733.797339][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1733.797339][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1733.797339][   T73]      ___sys_sendmsg+0xee/0x170
[ 1733.797339][   T73]      __sys_sendmsg+0xcd/0x170
[ 1733.797339][   T73]      do_syscall_64+0xc6/0x1e0
[ 1733.797339][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1733.797339][   T73] 
[ 1733.798890][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1733.798890][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1733.798890][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1733.798890][   T73]      ipv6_find_idev+0x102/0x170
[ 1733.798890][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1733.798890][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1733.798890][   T73]      netlink_rcv_skb+0x130/0x360
[ 1733.798890][   T73]      netlink_unicast+0x449/0x710
[ 1733.798890][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1733.798890][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1733.798890][   T73]      ___sys_sendmsg+0xee/0x170
[ 1733.798890][   T73]      __sys_sendmsg+0xcd/0x170
[ 1733.798890][   T73]      do_syscall_64+0xc6/0x1e0
[ 1733.798890][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1733.798890][   T73] 
[ 1733.800592][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1733.800899][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1733.800899][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1733.800899][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1733.800899][   T73]      fib6_nh_init+0xa22/0x1580
[ 1733.800899][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1733.800899][   T73]      ip6_route_add+0x1c/0x140
[ 1733.800899][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1733.800899][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1733.800899][   T73]      netlink_rcv_skb+0x130/0x360
[ 1733.800899][   T73]      netlink_unicast+0x449/0x710
[ 1733.800899][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1733.800899][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1733.800899][   T73]      ___sys_sendmsg+0xee/0x170
[ 1733.800899][   T73]      __sys_sendmsg+0xcd/0x170
[ 1733.800899][   T73]      do_syscall_64+0xc6/0x1e0
[ 1733.800899][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1733.800899][   T73] 
[ 1733.802979][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1733.802979][   T73]      dst_init+0x84/0x4a0
[ 1733.802979][   T73]      dst_alloc+0x97/0x150
[ 1733.802979][   T73]      ip6_dst_alloc+0x23/0x90
[ 1733.802979][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1733.802979][   T73]      ip6_pol_route+0x56f/0x840
[ 1733.802979][   T73]      fib6_rule_lookup+0x456/0x630
[ 1733.802979][   T73]      ip6_route_input+0x59c/0xa50
[ 1733.802979][   T73]      ipv6_rcv+0x397/0x810
[ 1733.802979][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1733.802979][   T73]      process_backlog+0x101/0x620
[ 1733.802979][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1733.802979][   T73]      net_rx_action+0x495/0xbe0
[ 1733.802979][   T73]      __do_softirq+0x1b5/0x7f6
[ 1733.802979][   T73] 
[ 1733.804809][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1733.804809][   T73]      netdev_get_by_index+0x5e/0x80
[ 1733.804809][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1733.804809][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1733.804809][   T73]      ip6_route_add+0x1c/0x140
[ 1733.804809][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1733.804809][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1733.804809][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1733.804809][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1733.804809][   T73]      netlink_rcv_skb+0x130/0x360
[ 1733.804809][   T73]      netlink_unicast+0x449/0x710
[ 1733.804809][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1733.804809][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1733.804809][   T73]      ___sys_sendmsg+0xee/0x170
[ 1733.804809][   T73]      __sys_sendmsg+0xcd/0x170
[ 1733.804809][   T73]      do_syscall_64+0xc6/0x1e0
[ 1733.804809][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1733.804809][   T73] 
[ 1733.807075][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1733.807075][   T73]      netdev_get_by_index+0x5e/0x80
[ 1733.807075][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1733.807075][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1733.807075][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1733.807075][   T73]      ipv6_add_addr+0x411/0x2000
[ 1733.807075][   T73]      inet6_addr_add+0x30e/0xa40
[ 1733.807075][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1733.807075][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1733.807075][   T73]      netlink_rcv_skb+0x130/0x360
[ 1733.807075][   T73]      netlink_unicast+0x449/0x710
[ 1733.807075][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1733.807075][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1733.807075][   T73]      ___sys_sendmsg+0xee/0x170
[ 1733.807075][   T73]      __sys_sendmsg+0xcd/0x170
[ 1733.807075][   T73]      do_syscall_64+0xc6/0x1e0
[ 1733.807075][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1733.807075][   T73] 
[ 1733.809331][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1733.809331][   T73]      netdev_get_by_index+0x5e/0x80
[ 1733.809331][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1733.809331][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1733.809331][   T73]      ip6_route_add+0x1c/0x140
[ 1733.809331][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1733.809331][   T73]      addrconf_add_dev+0xe2/0x170
[ 1733.809331][   T73]      inet6_addr_add+0x12f/0xa40
[ 1733.809331][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1733.809331][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1733.809331][   T73]      netlink_rcv_skb+0x130/0x360
[ 1733.809331][   T73]      netlink_unicast+0x449/0x710
[ 1733.809331][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1733.809331][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1733.809331][   T73]      ___sys_sendmsg+0xee/0x170
[ 1733.809331][   T73]      __sys_sendmsg+0xcd/0x170
[ 1733.809331][   T73]      do_syscall_64+0xc6/0x1e0
[ 1733.809331][   T73] 
[ 1733.811502][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1733.811502][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1733.811502][   T73]      ipv6_find_idev+0x102/0x170
[ 1733.811502][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1733.811502][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1733.811502][   T73]      netlink_rcv_skb+0x130/0x360
[ 1733.811502][   T73]      netlink_unicast+0x449/0x710
[ 1733.811502][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1733.811502][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1733.811502][   T73]      ___sys_sendmsg+0xee/0x170
[ 1733.811502][   T73]      __sys_sendmsg+0xcd/0x170
[ 1733.811502][   T73]      do_syscall_64+0xc6/0x1e0
[ 1733.811502][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1733.811502][   T73] 
[ 1733.813292][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1733.813292][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1733.813292][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1733.813292][   T73]      ipv6_find_idev+0x102/0x170
[ 1733.813292][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1733.813292][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1733.813292][   T73]      netlink_rcv_skb+0x130/0x360
[ 1733.813292][   T73]      netlink_unicast+0x449/0x710
[ 1733.813292][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1733.813292][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1733.813292][   T73]      ___sys_sendmsg+0xee/0x170
[ 1733.813292][   T73]      __sys_sendmsg+0xcd/0x170
[ 1733.813292][   T73]      do_syscall_64+0xc6/0x1e0
[ 1733.813292][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1733.813292][   T73] 
[ 1733.815239][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1733.815512][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1733.815512][   T73]      netdev_get_by_index+0x5e/0x80
[ 1733.815512][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1733.815512][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1733.815512][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1733.815512][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1733.815512][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1733.815512][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1733.815512][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1733.815512][   T73]      addrconf_dad_begin+0x310/0x670
[ 1733.815512][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1733.815512][   T73]      process_one_work+0x84d/0x18a0
[ 1733.815512][   T73]      worker_thread+0x587/0xd30
[ 1733.815512][   T73]      kthread+0x28a/0x350
[ 1733.815512][   T73]      ret_from_fork+0x31/0x70
[ 1733.815512][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1733.815512][   T73] 
[ 1733.817691][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1733.817691][   T73]      netdev_get_by_index+0x5e/0x80
[ 1733.817691][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1733.817691][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1733.817691][   T73]      ip6_route_add+0x1c/0x140
[ 1733.817691][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1733.817691][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1733.817691][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1733.817691][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1733.817691][   T73]      netlink_rcv_skb+0x130/0x360
[ 1733.817691][   T73]      netlink_unicast+0x449/0x710
[ 1733.817691][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1733.817691][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1733.817691][   T73]      ___sys_sendmsg+0xee/0x170
[ 1733.817691][   T73]      __sys_sendmsg+0xcd/0x170
[ 1733.817691][   T73]      do_syscall_64+0xc6/0x1e0
[ 1733.817691][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1733.817691][   T73] 
[ 1733.819950][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1733.819950][   T73]      netdev_get_by_index+0x5e/0x80
[ 1733.819950][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1733.819950][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1733.819950][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1733.819950][   T73]      ipv6_add_addr+0x411/0x2000
[ 1733.819950][   T73]      inet6_addr_add+0x30e/0xa40
[ 1733.819950][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1733.819950][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1733.819950][   T73]      netlink_rcv_skb+0x130/0x360
[ 1733.819950][   T73]      netlink_unicast+0x449/0x710
[ 1733.819950][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1733.819950][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1733.819950][   T73]      ___sys_sendmsg+0xee/0x170
[ 1733.819950][   T73]      __sys_sendmsg+0xcd/0x170
[ 1733.819950][   T73]      do_syscall_64+0xc6/0x1e0
[ 1733.819950][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1733.819950][   T73] 
[ 1733.822205][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1733.822205][   T73]      netdev_get_by_index+0x5e/0x80
[ 1733.822205][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1733.822205][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1733.822205][   T73]      ip6_route_add+0x1c/0x140
[ 1733.822205][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1733.822205][   T73]      addrconf_add_dev+0xe2/0x170
[ 1733.822205][   T73]      inet6_addr_add+0x12f/0xa40
[ 1733.822205][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1733.822205][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1733.822205][   T73]      netlink_rcv_skb+0x130/0x360
[ 1733.822205][   T73]      netlink_unicast+0x449/0x710
[ 1733.822205][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1733.822205][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1733.822205][   T73]      ___sys_sendmsg+0xee/0x170
[ 1733.822205][   T73]      __sys_sendmsg+0xcd/0x170
[ 1733.822205][   T73]      do_syscall_64+0xc6/0x1e0
[ 1733.822205][   T73] 
[ 1733.824428][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1733.824428][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1733.824428][   T73]      ipv6_find_idev+0x102/0x170
[ 1733.824428][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1733.824428][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1733.824428][   T73]      netlink_rcv_skb+0x130/0x360
[ 1733.824428][   T73]      netlink_unicast+0x449/0x710
[ 1733.824428][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1733.824428][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1733.824428][   T73]      ___sys_sendmsg+0xee/0x170
[ 1733.824428][   T73]      __sys_sendmsg+0xcd/0x170
[ 1733.824428][   T73]      do_syscall_64+0xc6/0x1e0
[ 1733.824428][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1733.824428][   T73] 
[ 1733.826159][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1733.826159][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1733.826159][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1733.826159][   T73]      ipv6_find_idev+0x102/0x170
[ 1733.826159][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1733.826159][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1733.826159][   T73]      netlink_rcv_skb+0x130/0x360
[ 1733.826159][   T73]      netlink_unicast+0x449/0x710
[ 1733.826159][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1733.826159][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1733.826159][   T73]      ___sys_sendmsg+0xee/0x170
[ 1733.826159][   T73]      __sys_sendmsg+0xcd/0x170
[ 1733.826159][   T73]      do_syscall_64+0xc6/0x1e0
[ 1733.826159][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1733.826159][   T73] 
[ 1744.063734][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1744.064147][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1744.064147][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1744.064147][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1744.064147][   T73]      fib6_nh_init+0xa22/0x1580
[ 1744.064147][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1744.064147][   T73]      ip6_route_add+0x1c/0x140
[ 1744.064147][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1744.064147][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1744.064147][   T73]      netlink_rcv_skb+0x130/0x360
[ 1744.064147][   T73]      netlink_unicast+0x449/0x710
[ 1744.064147][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1744.064147][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1744.064147][   T73]      ___sys_sendmsg+0xee/0x170
[ 1744.064147][   T73]      __sys_sendmsg+0xcd/0x170
[ 1744.064147][   T73]      do_syscall_64+0xc6/0x1e0
[ 1744.064147][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1744.064147][   T73] 
[ 1744.066168][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1744.066168][   T73]      dst_init+0x84/0x4a0
[ 1744.066168][   T73]      dst_alloc+0x97/0x150
[ 1744.066168][   T73]      ip6_dst_alloc+0x23/0x90
[ 1744.066168][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1744.066168][   T73]      ip6_pol_route+0x56f/0x840
[ 1744.066168][   T73]      fib6_rule_lookup+0x456/0x630
[ 1744.066168][   T73]      ip6_route_input+0x59c/0xa50
[ 1744.066168][   T73]      ipv6_rcv+0x397/0x810
[ 1744.066168][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1744.066168][   T73]      process_backlog+0x101/0x620
[ 1744.066168][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1744.066168][   T73]      net_rx_action+0x495/0xbe0
[ 1744.066168][   T73]      __do_softirq+0x1b5/0x7f6
[ 1744.066168][   T73] 
[ 1744.067829][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1744.067829][   T73]      netdev_get_by_index+0x5e/0x80
[ 1744.067829][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1744.067829][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1744.067829][   T73]      ip6_route_add+0x1c/0x140
[ 1744.067829][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1744.067829][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1744.067829][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1744.067829][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1744.067829][   T73]      netlink_rcv_skb+0x130/0x360
[ 1744.067829][   T73]      netlink_unicast+0x449/0x710
[ 1744.067829][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1744.067829][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1744.067829][   T73]      ___sys_sendmsg+0xee/0x170
[ 1744.067829][   T73]      __sys_sendmsg+0xcd/0x170
[ 1744.067829][   T73]      do_syscall_64+0xc6/0x1e0
[ 1744.067829][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1744.067829][   T73] 
[ 1744.069838][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1744.069838][   T73]      netdev_get_by_index+0x5e/0x80
[ 1744.069838][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1744.069838][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1744.069838][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1744.069838][   T73]      ipv6_add_addr+0x411/0x2000
[ 1744.069838][   T73]      inet6_addr_add+0x30e/0xa40
[ 1744.069838][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1744.069838][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1744.069838][   T73]      netlink_rcv_skb+0x130/0x360
[ 1744.069838][   T73]      netlink_unicast+0x449/0x710
[ 1744.069838][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1744.069838][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1744.069838][   T73]      ___sys_sendmsg+0xee/0x170
[ 1744.069838][   T73]      __sys_sendmsg+0xcd/0x170
[ 1744.069838][   T73]      do_syscall_64+0xc6/0x1e0
[ 1744.069838][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1744.069838][   T73] 
[ 1744.071918][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1744.071918][   T73]      netdev_get_by_index+0x5e/0x80
[ 1744.071918][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1744.071918][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1744.071918][   T73]      ip6_route_add+0x1c/0x140
[ 1744.071918][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1744.071918][   T73]      addrconf_add_dev+0xe2/0x170
[ 1744.071918][   T73]      inet6_addr_add+0x12f/0xa40
[ 1744.071918][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1744.071918][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1744.071918][   T73]      netlink_rcv_skb+0x130/0x360
[ 1744.071918][   T73]      netlink_unicast+0x449/0x710
[ 1744.071918][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1744.071918][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1744.071918][   T73]      ___sys_sendmsg+0xee/0x170
[ 1744.071918][   T73]      __sys_sendmsg+0xcd/0x170
[ 1744.071918][   T73]      do_syscall_64+0xc6/0x1e0
[ 1744.071918][   T73] 
[ 1744.073899][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1744.073899][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1744.073899][   T73]      ipv6_find_idev+0x102/0x170
[ 1744.073899][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1744.073899][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1744.073899][   T73]      netlink_rcv_skb+0x130/0x360
[ 1744.073899][   T73]      netlink_unicast+0x449/0x710
[ 1744.073899][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1744.073899][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1744.073899][   T73]      ___sys_sendmsg+0xee/0x170
[ 1744.073899][   T73]      __sys_sendmsg+0xcd/0x170
[ 1744.073899][   T73]      do_syscall_64+0xc6/0x1e0
[ 1744.073899][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1744.073899][   T73] 
[ 1744.075458][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1744.075458][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1744.075458][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1744.075458][   T73]      ipv6_find_idev+0x102/0x170
[ 1744.075458][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1744.075458][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1744.075458][   T73]      netlink_rcv_skb+0x130/0x360
[ 1744.075458][   T73]      netlink_unicast+0x449/0x710
[ 1744.075458][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1744.075458][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1744.075458][   T73]      ___sys_sendmsg+0xee/0x170
[ 1744.075458][   T73]      __sys_sendmsg+0xcd/0x170
[ 1744.075458][   T73]      do_syscall_64+0xc6/0x1e0
[ 1744.075458][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1744.075458][   T73] 
[ 1744.077188][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1744.077471][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1744.077471][   T73]      netdev_get_by_index+0x5e/0x80
[ 1744.077471][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1744.077471][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1744.077471][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1744.077471][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1744.077471][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1744.077471][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1744.077471][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1744.077471][   T73]      addrconf_dad_begin+0x310/0x670
[ 1744.077471][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1744.077471][   T73]      process_one_work+0x84d/0x18a0
[ 1744.077471][   T73]      worker_thread+0x587/0xd30
[ 1744.077471][   T73]      kthread+0x28a/0x350
[ 1744.077471][   T73]      ret_from_fork+0x31/0x70
[ 1744.077471][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1744.077471][   T73] 
[ 1744.079398][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1744.079398][   T73]      netdev_get_by_index+0x5e/0x80
[ 1744.079398][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1744.079398][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1744.079398][   T73]      ip6_route_add+0x1c/0x140
[ 1744.079398][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1744.079398][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1744.079398][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1744.079398][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1744.079398][   T73]      netlink_rcv_skb+0x130/0x360
[ 1744.079398][   T73]      netlink_unicast+0x449/0x710
[ 1744.079398][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1744.079398][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1744.079398][   T73]      ___sys_sendmsg+0xee/0x170
[ 1744.079398][   T73]      __sys_sendmsg+0xcd/0x170
[ 1744.079398][   T73]      do_syscall_64+0xc6/0x1e0
[ 1744.079398][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1744.079398][   T73] 
[ 1744.081411][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1744.081411][   T73]      netdev_get_by_index+0x5e/0x80
[ 1744.081411][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1744.081411][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1744.081411][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1744.081411][   T73]      ipv6_add_addr+0x411/0x2000
[ 1744.081411][   T73]      inet6_addr_add+0x30e/0xa40
[ 1744.081411][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1744.081411][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1744.081411][   T73]      netlink_rcv_skb+0x130/0x360
[ 1744.081411][   T73]      netlink_unicast+0x449/0x710
[ 1744.081411][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1744.081411][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1744.081411][   T73]      ___sys_sendmsg+0xee/0x170
[ 1744.081411][   T73]      __sys_sendmsg+0xcd/0x170
[ 1744.081411][   T73]      do_syscall_64+0xc6/0x1e0
[ 1744.081411][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1744.081411][   T73] 
[ 1744.083425][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1744.083425][   T73]      netdev_get_by_index+0x5e/0x80
[ 1744.083425][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1744.083425][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1744.083425][   T73]      ip6_route_add+0x1c/0x140
[ 1744.083425][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1744.083425][   T73]      addrconf_add_dev+0xe2/0x170
[ 1744.083425][   T73]      inet6_addr_add+0x12f/0xa40
[ 1744.083425][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1744.083425][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1744.083425][   T73]      netlink_rcv_skb+0x130/0x360
[ 1744.083425][   T73]      netlink_unicast+0x449/0x710
[ 1744.083425][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1744.083425][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1744.083425][   T73]      ___sys_sendmsg+0xee/0x170
[ 1744.083425][   T73]      __sys_sendmsg+0xcd/0x170
[ 1744.083425][   T73]      do_syscall_64+0xc6/0x1e0
[ 1744.083425][   T73] 
[ 1744.085404][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1744.085404][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1744.085404][   T73]      ipv6_find_idev+0x102/0x170
[ 1744.085404][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1744.085404][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1744.085404][   T73]      netlink_rcv_skb+0x130/0x360
[ 1744.085404][   T73]      netlink_unicast+0x449/0x710
[ 1744.085404][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1744.085404][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1744.085404][   T73]      ___sys_sendmsg+0xee/0x170
[ 1744.085404][   T73]      __sys_sendmsg+0xcd/0x170
[ 1744.085404][   T73]      do_syscall_64+0xc6/0x1e0
[ 1744.085404][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1744.085404][   T73] 
[ 1744.086962][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1744.086962][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1744.086962][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1744.086962][   T73]      ipv6_find_idev+0x102/0x170
[ 1744.086962][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1744.086962][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1744.086962][   T73]      netlink_rcv_skb+0x130/0x360
[ 1744.086962][   T73]      netlink_unicast+0x449/0x710
[ 1744.086962][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1744.086962][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1744.086962][   T73]      ___sys_sendmsg+0xee/0x170
[ 1744.086962][   T73]      __sys_sendmsg+0xcd/0x170
[ 1744.086962][   T73]      do_syscall_64+0xc6/0x1e0
[ 1744.086962][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1744.086962][   T73] 
[ 1744.088672][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1744.088946][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1744.088946][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1744.088946][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1744.088946][   T73]      fib6_nh_init+0xa22/0x1580
[ 1744.088946][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1744.088946][   T73]      ip6_route_add+0x1c/0x140
[ 1744.088946][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1744.088946][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1744.088946][   T73]      netlink_rcv_skb+0x130/0x360
[ 1744.088946][   T73]      netlink_unicast+0x449/0x710
[ 1744.088946][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1744.088946][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1744.088946][   T73]      ___sys_sendmsg+0xee/0x170
[ 1744.088946][   T73]      __sys_sendmsg+0xcd/0x170
[ 1744.088946][   T73]      do_syscall_64+0xc6/0x1e0
[ 1744.088946][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1744.088946][   T73] 
[ 1744.090978][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1744.090978][   T73]      dst_init+0x84/0x4a0
[ 1744.090978][   T73]      dst_alloc+0x97/0x150
[ 1744.090978][   T73]      ip6_dst_alloc+0x23/0x90
[ 1744.090978][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1744.090978][   T73]      ip6_pol_route+0x56f/0x840
[ 1744.090978][   T73]      fib6_rule_lookup+0x456/0x630
[ 1744.090978][   T73]      ip6_route_input+0x59c/0xa50
[ 1744.090978][   T73]      ipv6_rcv+0x397/0x810
[ 1744.090978][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1744.090978][   T73]      process_backlog+0x101/0x620
[ 1744.090978][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1744.090978][   T73]      net_rx_action+0x495/0xbe0
[ 1744.090978][   T73]      __do_softirq+0x1b5/0x7f6
[ 1744.090978][   T73] 
[ 1744.092688][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1744.092688][   T73]      netdev_get_by_index+0x5e/0x80
[ 1744.092688][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1744.092688][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1744.092688][   T73]      ip6_route_add+0x1c/0x140
[ 1744.092688][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1744.092688][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1744.092688][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1744.092688][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1744.092688][   T73]      netlink_rcv_skb+0x130/0x360
[ 1744.092688][   T73]      netlink_unicast+0x449/0x710
[ 1744.092688][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1744.092688][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1744.092688][   T73]      ___sys_sendmsg+0xee/0x170
[ 1744.092688][   T73]      __sys_sendmsg+0xcd/0x170
[ 1744.092688][   T73]      do_syscall_64+0xc6/0x1e0
[ 1744.092688][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1744.092688][   T73] 
[ 1744.094829][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1744.094829][   T73]      netdev_get_by_index+0x5e/0x80
[ 1744.094829][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1744.094829][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1744.094829][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1744.094829][   T73]      ipv6_add_addr+0x411/0x2000
[ 1744.094829][   T73]      inet6_addr_add+0x30e/0xa40
[ 1744.094829][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1744.094829][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1744.094829][   T73]      netlink_rcv_skb+0x130/0x360
[ 1744.094829][   T73]      netlink_unicast+0x449/0x710
[ 1744.094829][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1744.094829][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1744.094829][   T73]      ___sys_sendmsg+0xee/0x170
[ 1744.094829][   T73]      __sys_sendmsg+0xcd/0x170
[ 1744.094829][   T73]      do_syscall_64+0xc6/0x1e0
[ 1744.094829][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1744.094829][   T73] 
[ 1744.097046][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1744.097046][   T73]      netdev_get_by_index+0x5e/0x80
[ 1744.097046][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1744.097046][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1744.097046][   T73]      ip6_route_add+0x1c/0x140
[ 1744.097046][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1744.097046][   T73]      addrconf_add_dev+0xe2/0x170
[ 1744.097046][   T73]      inet6_addr_add+0x12f/0xa40
[ 1744.097046][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1744.097046][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1744.097046][   T73]      netlink_rcv_skb+0x130/0x360
[ 1744.097046][   T73]      netlink_unicast+0x449/0x710
[ 1744.097046][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1744.097046][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1744.097046][   T73]      ___sys_sendmsg+0xee/0x170
[ 1744.097046][   T73]      __sys_sendmsg+0xcd/0x170
[ 1744.097046][   T73]      do_syscall_64+0xc6/0x1e0
[ 1744.097046][   T73] 
[ 1744.099091][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1744.099091][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1744.099091][   T73]      ipv6_find_idev+0x102/0x170
[ 1744.099091][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1744.099091][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1744.099091][   T73]      netlink_rcv_skb+0x130/0x360
[ 1744.099091][   T73]      netlink_unicast+0x449/0x710
[ 1744.099091][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1744.099091][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1744.099091][   T73]      ___sys_sendmsg+0xee/0x170
[ 1744.099091][   T73]      __sys_sendmsg+0xcd/0x170
[ 1744.099091][   T73]      do_syscall_64+0xc6/0x1e0
[ 1744.099091][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1744.099091][   T73] 
[ 1744.100770][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1744.100770][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1744.100770][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1744.100770][   T73]      ipv6_find_idev+0x102/0x170
[ 1744.100770][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1744.100770][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1744.100770][   T73]      netlink_rcv_skb+0x130/0x360
[ 1744.100770][   T73]      netlink_unicast+0x449/0x710
[ 1744.100770][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1744.100770][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1744.100770][   T73]      ___sys_sendmsg+0xee/0x170
[ 1744.100770][   T73]      __sys_sendmsg+0xcd/0x170
[ 1744.100770][   T73]      do_syscall_64+0xc6/0x1e0
[ 1744.100770][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1744.100770][   T73] 
[ 1744.102604][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1744.103312][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1744.103312][   T73]      netdev_get_by_index+0x5e/0x80
[ 1744.103312][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1744.103312][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1744.103312][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1744.103312][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1744.103312][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1744.103312][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1744.103312][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1744.103312][   T73]      addrconf_dad_begin+0x310/0x670
[ 1744.103312][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1744.103312][   T73]      process_one_work+0x84d/0x18a0
[ 1744.103312][   T73]      worker_thread+0x587/0xd30
[ 1744.103312][   T73]      kthread+0x28a/0x350
[ 1744.103312][   T73]      ret_from_fork+0x31/0x70
[ 1744.103312][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1744.103312][   T73] 
[ 1744.105244][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1744.105244][   T73]      netdev_get_by_index+0x5e/0x80
[ 1744.105244][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1744.105244][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1744.105244][   T73]      ip6_route_add+0x1c/0x140
[ 1744.105244][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1744.105244][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1744.105244][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1744.105244][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1744.105244][   T73]      netlink_rcv_skb+0x130/0x360
[ 1744.105244][   T73]      netlink_unicast+0x449/0x710
[ 1744.105244][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1744.105244][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1744.105244][   T73]      ___sys_sendmsg+0xee/0x170
[ 1744.105244][   T73]      __sys_sendmsg+0xcd/0x170
[ 1744.105244][   T73]      do_syscall_64+0xc6/0x1e0
[ 1744.105244][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1744.105244][   T73] 
[ 1744.107860][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1744.107860][   T73]      netdev_get_by_index+0x5e/0x80
[ 1744.107860][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1744.107860][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1744.107860][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1744.107860][   T73]      ipv6_add_addr+0x411/0x2000
[ 1744.107860][   T73]      inet6_addr_add+0x30e/0xa40
[ 1744.107860][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1744.107860][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1744.107860][   T73]      netlink_rcv_skb+0x130/0x360
[ 1744.107860][   T73]      netlink_unicast+0x449/0x710
[ 1744.107860][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1744.107860][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1744.107860][   T73]      ___sys_sendmsg+0xee/0x170
[ 1744.107860][   T73]      __sys_sendmsg+0xcd/0x170
[ 1744.107860][   T73]      do_syscall_64+0xc6/0x1e0
[ 1744.107860][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1744.107860][   T73] 
[ 1744.109998][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1744.109998][   T73]      netdev_get_by_index+0x5e/0x80
[ 1744.109998][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1744.109998][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1744.109998][   T73]      ip6_route_add+0x1c/0x140
[ 1744.109998][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1744.109998][   T73]      addrconf_add_dev+0xe2/0x170
[ 1744.109998][   T73]      inet6_addr_add+0x12f/0xa40
[ 1744.109998][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1744.109998][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1744.109998][   T73]      netlink_rcv_skb+0x130/0x360
[ 1744.109998][   T73]      netlink_unicast+0x449/0x710
[ 1744.109998][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1744.109998][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1744.109998][   T73]      ___sys_sendmsg+0xee/0x170
[ 1744.109998][   T73]      __sys_sendmsg+0xcd/0x170
[ 1744.109998][   T73]      do_syscall_64+0xc6/0x1e0
[ 1744.109998][   T73] 
[ 1744.112039][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1744.112039][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1744.112039][   T73]      ipv6_find_idev+0x102/0x170
[ 1744.112039][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1744.112039][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1744.112039][   T73]      netlink_rcv_skb+0x130/0x360
[ 1744.112039][   T73]      netlink_unicast+0x449/0x710
[ 1744.112039][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1744.112039][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1744.112039][   T73]      ___sys_sendmsg+0xee/0x170
[ 1744.112039][   T73]      __sys_sendmsg+0xcd/0x170
[ 1744.112039][   T73]      do_syscall_64+0xc6/0x1e0
[ 1744.112039][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1744.112039][   T73] 
[ 1744.113778][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1744.113778][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1744.113778][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1744.113778][   T73]      ipv6_find_idev+0x102/0x170
[ 1744.113778][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1744.113778][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1744.113778][   T73]      netlink_rcv_skb+0x130/0x360
[ 1744.113778][   T73]      netlink_unicast+0x449/0x710
[ 1744.113778][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1744.113778][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1744.113778][   T73]      ___sys_sendmsg+0xee/0x170
[ 1744.113778][   T73]      __sys_sendmsg+0xcd/0x170
[ 1744.113778][   T73]      do_syscall_64+0xc6/0x1e0
[ 1744.113778][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1744.113778][   T73] 
[ 1754.311768][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1754.312169][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1754.312169][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1754.312169][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1754.312169][   T73]      fib6_nh_init+0xa22/0x1580
[ 1754.312169][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1754.312169][   T73]      ip6_route_add+0x1c/0x140
[ 1754.312169][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1754.312169][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1754.312169][   T73]      netlink_rcv_skb+0x130/0x360
[ 1754.312169][   T73]      netlink_unicast+0x449/0x710
[ 1754.312169][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1754.312169][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1754.312169][   T73]      ___sys_sendmsg+0xee/0x170
[ 1754.312169][   T73]      __sys_sendmsg+0xcd/0x170
[ 1754.312169][   T73]      do_syscall_64+0xc6/0x1e0
[ 1754.312169][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1754.312169][   T73] 
[ 1754.314137][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1754.314137][   T73]      dst_init+0x84/0x4a0
[ 1754.314137][   T73]      dst_alloc+0x97/0x150
[ 1754.314137][   T73]      ip6_dst_alloc+0x23/0x90
[ 1754.314137][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1754.314137][   T73]      ip6_pol_route+0x56f/0x840
[ 1754.314137][   T73]      fib6_rule_lookup+0x456/0x630
[ 1754.314137][   T73]      ip6_route_input+0x59c/0xa50
[ 1754.314137][   T73]      ipv6_rcv+0x397/0x810
[ 1754.314137][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1754.314137][   T73]      process_backlog+0x101/0x620
[ 1754.314137][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1754.314137][   T73]      net_rx_action+0x495/0xbe0
[ 1754.314137][   T73]      __do_softirq+0x1b5/0x7f6
[ 1754.314137][   T73] 
[ 1754.315815][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1754.315815][   T73]      netdev_get_by_index+0x5e/0x80
[ 1754.315815][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1754.315815][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1754.315815][   T73]      ip6_route_add+0x1c/0x140
[ 1754.315815][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1754.315815][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1754.315815][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1754.315815][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1754.315815][   T73]      netlink_rcv_skb+0x130/0x360
[ 1754.315815][   T73]      netlink_unicast+0x449/0x710
[ 1754.315815][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1754.315815][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1754.315815][   T73]      ___sys_sendmsg+0xee/0x170
[ 1754.315815][   T73]      __sys_sendmsg+0xcd/0x170
[ 1754.315815][   T73]      do_syscall_64+0xc6/0x1e0
[ 1754.315815][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1754.315815][   T73] 
[ 1754.317876][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1754.317876][   T73]      netdev_get_by_index+0x5e/0x80
[ 1754.317876][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1754.317876][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1754.317876][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1754.317876][   T73]      ipv6_add_addr+0x411/0x2000
[ 1754.317876][   T73]      inet6_addr_add+0x30e/0xa40
[ 1754.317876][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1754.317876][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1754.317876][   T73]      netlink_rcv_skb+0x130/0x360
[ 1754.317876][   T73]      netlink_unicast+0x449/0x710
[ 1754.317876][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1754.317876][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1754.317876][   T73]      ___sys_sendmsg+0xee/0x170
[ 1754.317876][   T73]      __sys_sendmsg+0xcd/0x170
[ 1754.317876][   T73]      do_syscall_64+0xc6/0x1e0
[ 1754.317876][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1754.317876][   T73] 
[ 1754.319907][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1754.319907][   T73]      netdev_get_by_index+0x5e/0x80
[ 1754.319907][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1754.319907][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1754.319907][   T73]      ip6_route_add+0x1c/0x140
[ 1754.319907][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1754.319907][   T73]      addrconf_add_dev+0xe2/0x170
[ 1754.319907][   T73]      inet6_addr_add+0x12f/0xa40
[ 1754.319907][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1754.319907][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1754.319907][   T73]      netlink_rcv_skb+0x130/0x360
[ 1754.319907][   T73]      netlink_unicast+0x449/0x710
[ 1754.319907][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1754.319907][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1754.319907][   T73]      ___sys_sendmsg+0xee/0x170
[ 1754.319907][   T73]      __sys_sendmsg+0xcd/0x170
[ 1754.319907][   T73]      do_syscall_64+0xc6/0x1e0
[ 1754.319907][   T73] 
[ 1754.321888][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1754.321888][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1754.321888][   T73]      ipv6_find_idev+0x102/0x170
[ 1754.321888][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1754.321888][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1754.321888][   T73]      netlink_rcv_skb+0x130/0x360
[ 1754.321888][   T73]      netlink_unicast+0x449/0x710
[ 1754.321888][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1754.321888][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1754.321888][   T73]      ___sys_sendmsg+0xee/0x170
[ 1754.321888][   T73]      __sys_sendmsg+0xcd/0x170
[ 1754.321888][   T73]      do_syscall_64+0xc6/0x1e0
[ 1754.321888][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1754.321888][   T73] 
[ 1754.323502][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1754.323502][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1754.323502][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1754.323502][   T73]      ipv6_find_idev+0x102/0x170
[ 1754.323502][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1754.323502][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1754.323502][   T73]      netlink_rcv_skb+0x130/0x360
[ 1754.323502][   T73]      netlink_unicast+0x449/0x710
[ 1754.323502][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1754.323502][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1754.323502][   T73]      ___sys_sendmsg+0xee/0x170
[ 1754.323502][   T73]      __sys_sendmsg+0xcd/0x170
[ 1754.323502][   T73]      do_syscall_64+0xc6/0x1e0
[ 1754.323502][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1754.323502][   T73] 
[ 1754.325276][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1754.325565][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1754.325565][   T73]      netdev_get_by_index+0x5e/0x80
[ 1754.325565][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1754.325565][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1754.325565][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1754.325565][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1754.325565][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1754.325565][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1754.325565][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1754.325565][   T73]      addrconf_dad_begin+0x310/0x670
[ 1754.325565][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1754.325565][   T73]      process_one_work+0x84d/0x18a0
[ 1754.325565][   T73]      worker_thread+0x587/0xd30
[ 1754.325565][   T73]      kthread+0x28a/0x350
[ 1754.325565][   T73]      ret_from_fork+0x31/0x70
[ 1754.325565][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1754.325565][   T73] 
[ 1754.327554][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1754.327554][   T73]      netdev_get_by_index+0x5e/0x80
[ 1754.327554][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1754.327554][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1754.327554][   T73]      ip6_route_add+0x1c/0x140
[ 1754.327554][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1754.327554][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1754.327554][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1754.327554][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1754.327554][   T73]      netlink_rcv_skb+0x130/0x360
[ 1754.327554][   T73]      netlink_unicast+0x449/0x710
[ 1754.327554][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1754.327554][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1754.327554][   T73]      ___sys_sendmsg+0xee/0x170
[ 1754.327554][   T73]      __sys_sendmsg+0xcd/0x170
[ 1754.327554][   T73]      do_syscall_64+0xc6/0x1e0
[ 1754.327554][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1754.327554][   T73] 
[ 1754.329644][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1754.329644][   T73]      netdev_get_by_index+0x5e/0x80
[ 1754.329644][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1754.329644][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1754.329644][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1754.329644][   T73]      ipv6_add_addr+0x411/0x2000
[ 1754.329644][   T73]      inet6_addr_add+0x30e/0xa40
[ 1754.329644][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1754.329644][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1754.329644][   T73]      netlink_rcv_skb+0x130/0x360
[ 1754.329644][   T73]      netlink_unicast+0x449/0x710
[ 1754.329644][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1754.329644][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1754.329644][   T73]      ___sys_sendmsg+0xee/0x170
[ 1754.329644][   T73]      __sys_sendmsg+0xcd/0x170
[ 1754.329644][   T73]      do_syscall_64+0xc6/0x1e0
[ 1754.329644][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1754.329644][   T73] 
[ 1754.331697][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1754.331697][   T73]      netdev_get_by_index+0x5e/0x80
[ 1754.331697][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1754.331697][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1754.331697][   T73]      ip6_route_add+0x1c/0x140
[ 1754.331697][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1754.331697][   T73]      addrconf_add_dev+0xe2/0x170
[ 1754.331697][   T73]      inet6_addr_add+0x12f/0xa40
[ 1754.331697][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1754.331697][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1754.331697][   T73]      netlink_rcv_skb+0x130/0x360
[ 1754.331697][   T73]      netlink_unicast+0x449/0x710
[ 1754.331697][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1754.331697][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1754.331697][   T73]      ___sys_sendmsg+0xee/0x170
[ 1754.331697][   T73]      __sys_sendmsg+0xcd/0x170
[ 1754.331697][   T73]      do_syscall_64+0xc6/0x1e0
[ 1754.331697][   T73] 
[ 1754.333739][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1754.333739][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1754.333739][   T73]      ipv6_find_idev+0x102/0x170
[ 1754.333739][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1754.333739][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1754.333739][   T73]      netlink_rcv_skb+0x130/0x360
[ 1754.333739][   T73]      netlink_unicast+0x449/0x710
[ 1754.333739][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1754.333739][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1754.333739][   T73]      ___sys_sendmsg+0xee/0x170
[ 1754.333739][   T73]      __sys_sendmsg+0xcd/0x170
[ 1754.333739][   T73]      do_syscall_64+0xc6/0x1e0
[ 1754.333739][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1754.333739][   T73] 
[ 1754.335322][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1754.335322][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1754.335322][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1754.335322][   T73]      ipv6_find_idev+0x102/0x170
[ 1754.335322][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1754.335322][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1754.335322][   T73]      netlink_rcv_skb+0x130/0x360
[ 1754.335322][   T73]      netlink_unicast+0x449/0x710
[ 1754.335322][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1754.335322][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1754.335322][   T73]      ___sys_sendmsg+0xee/0x170
[ 1754.335322][   T73]      __sys_sendmsg+0xcd/0x170
[ 1754.335322][   T73]      do_syscall_64+0xc6/0x1e0
[ 1754.335322][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1754.335322][   T73] 
[ 1754.337081][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1754.337371][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1754.337371][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1754.337371][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1754.337371][   T73]      fib6_nh_init+0xa22/0x1580
[ 1754.337371][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1754.337371][   T73]      ip6_route_add+0x1c/0x140
[ 1754.337371][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1754.337371][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1754.337371][   T73]      netlink_rcv_skb+0x130/0x360
[ 1754.337371][   T73]      netlink_unicast+0x449/0x710
[ 1754.337371][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1754.337371][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1754.337371][   T73]      ___sys_sendmsg+0xee/0x170
[ 1754.337371][   T73]      __sys_sendmsg+0xcd/0x170
[ 1754.337371][   T73]      do_syscall_64+0xc6/0x1e0
[ 1754.337371][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1754.337371][   T73] 
[ 1754.339504][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1754.339504][   T73]      dst_init+0x84/0x4a0
[ 1754.339504][   T73]      dst_alloc+0x97/0x150
[ 1754.339504][   T73]      ip6_dst_alloc+0x23/0x90
[ 1754.339504][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1754.339504][   T73]      ip6_pol_route+0x56f/0x840
[ 1754.339504][   T73]      fib6_rule_lookup+0x456/0x630
[ 1754.339504][   T73]      ip6_route_input+0x59c/0xa50
[ 1754.339504][   T73]      ipv6_rcv+0x397/0x810
[ 1754.339504][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1754.339504][   T73]      process_backlog+0x101/0x620
[ 1754.339504][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1754.339504][   T73]      net_rx_action+0x495/0xbe0
[ 1754.339504][   T73]      __do_softirq+0x1b5/0x7f6
[ 1754.339504][   T73] 
[ 1754.341426][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1754.341426][   T73]      netdev_get_by_index+0x5e/0x80
[ 1754.341426][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1754.341426][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1754.341426][   T73]      ip6_route_add+0x1c/0x140
[ 1754.341426][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1754.341426][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1754.341426][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1754.341426][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1754.341426][   T73]      netlink_rcv_skb+0x130/0x360
[ 1754.341426][   T73]      netlink_unicast+0x449/0x710
[ 1754.341426][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1754.341426][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1754.341426][   T73]      ___sys_sendmsg+0xee/0x170
[ 1754.341426][   T73]      __sys_sendmsg+0xcd/0x170
[ 1754.341426][   T73]      do_syscall_64+0xc6/0x1e0
[ 1754.341426][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1754.341426][   T73] 
[ 1754.343681][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1754.343681][   T73]      netdev_get_by_index+0x5e/0x80
[ 1754.343681][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1754.343681][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1754.343681][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1754.343681][   T73]      ipv6_add_addr+0x411/0x2000
[ 1754.343681][   T73]      inet6_addr_add+0x30e/0xa40
[ 1754.343681][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1754.343681][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1754.343681][   T73]      netlink_rcv_skb+0x130/0x360
[ 1754.343681][   T73]      netlink_unicast+0x449/0x710
[ 1754.343681][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1754.343681][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1754.343681][   T73]      ___sys_sendmsg+0xee/0x170
[ 1754.343681][   T73]      __sys_sendmsg+0xcd/0x170
[ 1754.343681][   T73]      do_syscall_64+0xc6/0x1e0
[ 1754.343681][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1754.343681][   T73] 
[ 1754.345964][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1754.345964][   T73]      netdev_get_by_index+0x5e/0x80
[ 1754.345964][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1754.345964][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1754.345964][   T73]      ip6_route_add+0x1c/0x140
[ 1754.345964][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1754.345964][   T73]      addrconf_add_dev+0xe2/0x170
[ 1754.345964][   T73]      inet6_addr_add+0x12f/0xa40
[ 1754.345964][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1754.345964][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1754.345964][   T73]      netlink_rcv_skb+0x130/0x360
[ 1754.345964][   T73]      netlink_unicast+0x449/0x710
[ 1754.345964][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1754.345964][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1754.345964][   T73]      ___sys_sendmsg+0xee/0x170
[ 1754.345964][   T73]      __sys_sendmsg+0xcd/0x170
[ 1754.345964][   T73]      do_syscall_64+0xc6/0x1e0
[ 1754.345964][   T73] 
[ 1754.348143][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1754.348143][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1754.348143][   T73]      ipv6_find_idev+0x102/0x170
[ 1754.348143][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1754.348143][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1754.348143][   T73]      netlink_rcv_skb+0x130/0x360
[ 1754.348143][   T73]      netlink_unicast+0x449/0x710
[ 1754.348143][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1754.348143][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1754.348143][   T73]      ___sys_sendmsg+0xee/0x170
[ 1754.348143][   T73]      __sys_sendmsg+0xcd/0x170
[ 1754.348143][   T73]      do_syscall_64+0xc6/0x1e0
[ 1754.348143][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1754.348143][   T73] 
[ 1754.349950][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1754.349950][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1754.349950][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1754.349950][   T73]      ipv6_find_idev+0x102/0x170
[ 1754.349950][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1754.349950][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1754.349950][   T73]      netlink_rcv_skb+0x130/0x360
[ 1754.349950][   T73]      netlink_unicast+0x449/0x710
[ 1754.349950][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1754.349950][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1754.349950][   T73]      ___sys_sendmsg+0xee/0x170
[ 1754.349950][   T73]      __sys_sendmsg+0xcd/0x170
[ 1754.349950][   T73]      do_syscall_64+0xc6/0x1e0
[ 1754.349950][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1754.349950][   T73] 
[ 1754.351907][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1754.352186][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1754.352186][   T73]      netdev_get_by_index+0x5e/0x80
[ 1754.352186][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1754.352186][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1754.352186][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1754.352186][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1754.352186][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1754.352186][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1754.352186][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1754.352186][   T73]      addrconf_dad_begin+0x310/0x670
[ 1754.352186][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1754.352186][   T73]      process_one_work+0x84d/0x18a0
[ 1754.352186][   T73]      worker_thread+0x587/0xd30
[ 1754.352186][   T73]      kthread+0x28a/0x350
[ 1754.352186][   T73]      ret_from_fork+0x31/0x70
[ 1754.352186][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1754.352186][   T73] 
[ 1754.354399][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1754.354399][   T73]      netdev_get_by_index+0x5e/0x80
[ 1754.354399][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1754.354399][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1754.354399][   T73]      ip6_route_add+0x1c/0x140
[ 1754.354399][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1754.354399][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1754.354399][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1754.354399][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1754.354399][   T73]      netlink_rcv_skb+0x130/0x360
[ 1754.354399][   T73]      netlink_unicast+0x449/0x710
[ 1754.354399][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1754.354399][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1754.354399][   T73]      ___sys_sendmsg+0xee/0x170
[ 1754.354399][   T73]      __sys_sendmsg+0xcd/0x170
[ 1754.354399][   T73]      do_syscall_64+0xc6/0x1e0
[ 1754.354399][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1754.354399][   T73] 
[ 1754.356677][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1754.356677][   T73]      netdev_get_by_index+0x5e/0x80
[ 1754.356677][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1754.356677][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1754.356677][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1754.356677][   T73]      ipv6_add_addr+0x411/0x2000
[ 1754.356677][   T73]      inet6_addr_add+0x30e/0xa40
[ 1754.356677][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1754.356677][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1754.356677][   T73]      netlink_rcv_skb+0x130/0x360
[ 1754.356677][   T73]      netlink_unicast+0x449/0x710
[ 1754.356677][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1754.356677][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1754.356677][   T73]      ___sys_sendmsg+0xee/0x170
[ 1754.356677][   T73]      __sys_sendmsg+0xcd/0x170
[ 1754.356677][   T73]      do_syscall_64+0xc6/0x1e0
[ 1754.356677][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1754.356677][   T73] 
[ 1754.358904][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1754.358904][   T73]      netdev_get_by_index+0x5e/0x80
[ 1754.358904][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1754.358904][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1754.358904][   T73]      ip6_route_add+0x1c/0x140
[ 1754.358904][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1754.358904][   T73]      addrconf_add_dev+0xe2/0x170
[ 1754.358904][   T73]      inet6_addr_add+0x12f/0xa40
[ 1754.358904][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1754.358904][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1754.358904][   T73]      netlink_rcv_skb+0x130/0x360
[ 1754.358904][   T73]      netlink_unicast+0x449/0x710
[ 1754.358904][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1754.358904][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1754.358904][   T73]      ___sys_sendmsg+0xee/0x170
[ 1754.358904][   T73]      __sys_sendmsg+0xcd/0x170
[ 1754.358904][   T73]      do_syscall_64+0xc6/0x1e0
[ 1754.358904][   T73] 
[ 1754.361210][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1754.361210][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1754.361210][   T73]      ipv6_find_idev+0x102/0x170
[ 1754.361210][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1754.361210][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1754.361210][   T73]      netlink_rcv_skb+0x130/0x360
[ 1754.361210][   T73]      netlink_unicast+0x449/0x710
[ 1754.361210][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1754.361210][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1754.361210][   T73]      ___sys_sendmsg+0xee/0x170
[ 1754.361210][   T73]      __sys_sendmsg+0xcd/0x170
[ 1754.361210][   T73]      do_syscall_64+0xc6/0x1e0
[ 1754.361210][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1754.361210][   T73] 
[ 1754.362962][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1754.362962][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1754.362962][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1754.362962][   T73]      ipv6_find_idev+0x102/0x170
[ 1754.362962][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1754.362962][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1754.362962][   T73]      netlink_rcv_skb+0x130/0x360
[ 1754.362962][   T73]      netlink_unicast+0x449/0x710
[ 1754.362962][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1754.362962][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1754.362962][   T73]      ___sys_sendmsg+0xee/0x170
[ 1754.362962][   T73]      __sys_sendmsg+0xcd/0x170
[ 1754.362962][   T73]      do_syscall_64+0xc6/0x1e0
[ 1754.362962][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1754.362962][   T73] 
[ 1764.527822][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1764.528214][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1764.528214][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1764.528214][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1764.528214][   T73]      fib6_nh_init+0xa22/0x1580
[ 1764.528214][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1764.528214][   T73]      ip6_route_add+0x1c/0x140
[ 1764.528214][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1764.528214][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1764.528214][   T73]      netlink_rcv_skb+0x130/0x360
[ 1764.528214][   T73]      netlink_unicast+0x449/0x710
[ 1764.528214][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1764.528214][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1764.528214][   T73]      ___sys_sendmsg+0xee/0x170
[ 1764.528214][   T73]      __sys_sendmsg+0xcd/0x170
[ 1764.528214][   T73]      do_syscall_64+0xc6/0x1e0
[ 1764.528214][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1764.528214][   T73] 
[ 1764.530096][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1764.530096][   T73]      dst_init+0x84/0x4a0
[ 1764.530096][   T73]      dst_alloc+0x97/0x150
[ 1764.530096][   T73]      ip6_dst_alloc+0x23/0x90
[ 1764.530096][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1764.530096][   T73]      ip6_pol_route+0x56f/0x840
[ 1764.530096][   T73]      fib6_rule_lookup+0x456/0x630
[ 1764.530096][   T73]      ip6_route_input+0x59c/0xa50
[ 1764.530096][   T73]      ipv6_rcv+0x397/0x810
[ 1764.530096][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1764.530096][   T73]      process_backlog+0x101/0x620
[ 1764.530096][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1764.530096][   T73]      net_rx_action+0x495/0xbe0
[ 1764.530096][   T73]      __do_softirq+0x1b5/0x7f6
[ 1764.530096][   T73] 
[ 1764.531725][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1764.531725][   T73]      netdev_get_by_index+0x5e/0x80
[ 1764.531725][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1764.531725][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1764.531725][   T73]      ip6_route_add+0x1c/0x140
[ 1764.531725][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1764.531725][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1764.531725][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1764.531725][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1764.531725][   T73]      netlink_rcv_skb+0x130/0x360
[ 1764.531725][   T73]      netlink_unicast+0x449/0x710
[ 1764.531725][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1764.531725][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1764.531725][   T73]      ___sys_sendmsg+0xee/0x170
[ 1764.531725][   T73]      __sys_sendmsg+0xcd/0x170
[ 1764.531725][   T73]      do_syscall_64+0xc6/0x1e0
[ 1764.531725][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1764.531725][   T73] 
[ 1764.533728][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1764.533728][   T73]      netdev_get_by_index+0x5e/0x80
[ 1764.533728][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1764.533728][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1764.533728][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1764.533728][   T73]      ipv6_add_addr+0x411/0x2000
[ 1764.533728][   T73]      inet6_addr_add+0x30e/0xa40
[ 1764.533728][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1764.533728][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1764.533728][   T73]      netlink_rcv_skb+0x130/0x360
[ 1764.533728][   T73]      netlink_unicast+0x449/0x710
[ 1764.533728][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1764.533728][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1764.533728][   T73]      ___sys_sendmsg+0xee/0x170
[ 1764.533728][   T73]      __sys_sendmsg+0xcd/0x170
[ 1764.533728][   T73]      do_syscall_64+0xc6/0x1e0
[ 1764.533728][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1764.533728][   T73] 
[ 1764.535718][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1764.535718][   T73]      netdev_get_by_index+0x5e/0x80
[ 1764.535718][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1764.535718][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1764.535718][   T73]      ip6_route_add+0x1c/0x140
[ 1764.535718][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1764.535718][   T73]      addrconf_add_dev+0xe2/0x170
[ 1764.535718][   T73]      inet6_addr_add+0x12f/0xa40
[ 1764.535718][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1764.535718][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1764.535718][   T73]      netlink_rcv_skb+0x130/0x360
[ 1764.535718][   T73]      netlink_unicast+0x449/0x710
[ 1764.535718][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1764.535718][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1764.535718][   T73]      ___sys_sendmsg+0xee/0x170
[ 1764.535718][   T73]      __sys_sendmsg+0xcd/0x170
[ 1764.535718][   T73]      do_syscall_64+0xc6/0x1e0
[ 1764.535718][   T73] 
[ 1764.537684][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1764.537684][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1764.537684][   T73]      ipv6_find_idev+0x102/0x170
[ 1764.537684][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1764.537684][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1764.537684][   T73]      netlink_rcv_skb+0x130/0x360
[ 1764.537684][   T73]      netlink_unicast+0x449/0x710
[ 1764.537684][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1764.537684][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1764.537684][   T73]      ___sys_sendmsg+0xee/0x170
[ 1764.537684][   T73]      __sys_sendmsg+0xcd/0x170
[ 1764.537684][   T73]      do_syscall_64+0xc6/0x1e0
[ 1764.537684][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1764.537684][   T73] 
[ 1764.539250][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1764.539250][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1764.539250][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1764.539250][   T73]      ipv6_find_idev+0x102/0x170
[ 1764.539250][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1764.539250][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1764.539250][   T73]      netlink_rcv_skb+0x130/0x360
[ 1764.539250][   T73]      netlink_unicast+0x449/0x710
[ 1764.539250][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1764.539250][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1764.539250][   T73]      ___sys_sendmsg+0xee/0x170
[ 1764.539250][   T73]      __sys_sendmsg+0xcd/0x170
[ 1764.539250][   T73]      do_syscall_64+0xc6/0x1e0
[ 1764.539250][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1764.539250][   T73] 
[ 1764.540924][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1764.541194][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1764.541194][   T73]      netdev_get_by_index+0x5e/0x80
[ 1764.541194][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1764.541194][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1764.541194][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1764.541194][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1764.541194][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1764.541194][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1764.541194][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1764.541194][   T73]      addrconf_dad_begin+0x310/0x670
[ 1764.541194][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1764.541194][   T73]      process_one_work+0x84d/0x18a0
[ 1764.541194][   T73]      worker_thread+0x587/0xd30
[ 1764.541194][   T73]      kthread+0x28a/0x350
[ 1764.541194][   T73]      ret_from_fork+0x31/0x70
[ 1764.541194][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1764.541194][   T73] 
[ 1764.543101][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1764.543101][   T73]      netdev_get_by_index+0x5e/0x80
[ 1764.543101][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1764.543101][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1764.543101][   T73]      ip6_route_add+0x1c/0x140
[ 1764.543101][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1764.543101][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1764.543101][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1764.543101][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1764.543101][   T73]      netlink_rcv_skb+0x130/0x360
[ 1764.543101][   T73]      netlink_unicast+0x449/0x710
[ 1764.543101][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1764.543101][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1764.543101][   T73]      ___sys_sendmsg+0xee/0x170
[ 1764.543101][   T73]      __sys_sendmsg+0xcd/0x170
[ 1764.543101][   T73]      do_syscall_64+0xc6/0x1e0
[ 1764.543101][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1764.543101][   T73] 
[ 1764.545082][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1764.545082][   T73]      netdev_get_by_index+0x5e/0x80
[ 1764.545082][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1764.545082][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1764.545082][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1764.545082][   T73]      ipv6_add_addr+0x411/0x2000
[ 1764.545082][   T73]      inet6_addr_add+0x30e/0xa40
[ 1764.545082][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1764.545082][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1764.545082][   T73]      netlink_rcv_skb+0x130/0x360
[ 1764.545082][   T73]      netlink_unicast+0x449/0x710
[ 1764.545082][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1764.545082][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1764.545082][   T73]      ___sys_sendmsg+0xee/0x170
[ 1764.545082][   T73]      __sys_sendmsg+0xcd/0x170
[ 1764.545082][   T73]      do_syscall_64+0xc6/0x1e0
[ 1764.545082][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1764.545082][   T73] 
[ 1764.547087][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1764.547087][   T73]      netdev_get_by_index+0x5e/0x80
[ 1764.547087][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1764.547087][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1764.547087][   T73]      ip6_route_add+0x1c/0x140
[ 1764.547087][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1764.547087][   T73]      addrconf_add_dev+0xe2/0x170
[ 1764.547087][   T73]      inet6_addr_add+0x12f/0xa40
[ 1764.547087][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1764.547087][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1764.547087][   T73]      netlink_rcv_skb+0x130/0x360
[ 1764.547087][   T73]      netlink_unicast+0x449/0x710
[ 1764.547087][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1764.547087][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1764.547087][   T73]      ___sys_sendmsg+0xee/0x170
[ 1764.547087][   T73]      __sys_sendmsg+0xcd/0x170
[ 1764.547087][   T73]      do_syscall_64+0xc6/0x1e0
[ 1764.547087][   T73] 
[ 1764.549039][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1764.549039][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1764.549039][   T73]      ipv6_find_idev+0x102/0x170
[ 1764.549039][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1764.549039][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1764.549039][   T73]      netlink_rcv_skb+0x130/0x360
[ 1764.549039][   T73]      netlink_unicast+0x449/0x710
[ 1764.549039][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1764.549039][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1764.549039][   T73]      ___sys_sendmsg+0xee/0x170
[ 1764.549039][   T73]      __sys_sendmsg+0xcd/0x170
[ 1764.549039][   T73]      do_syscall_64+0xc6/0x1e0
[ 1764.549039][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1764.549039][   T73] 
[ 1764.550567][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1764.550567][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1764.550567][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1764.550567][   T73]      ipv6_find_idev+0x102/0x170
[ 1764.550567][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1764.550567][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1764.550567][   T73]      netlink_rcv_skb+0x130/0x360
[ 1764.550567][   T73]      netlink_unicast+0x449/0x710
[ 1764.550567][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1764.550567][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1764.550567][   T73]      ___sys_sendmsg+0xee/0x170
[ 1764.550567][   T73]      __sys_sendmsg+0xcd/0x170
[ 1764.550567][   T73]      do_syscall_64+0xc6/0x1e0
[ 1764.550567][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1764.550567][   T73] 
[ 1764.552246][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1764.552514][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1764.552514][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1764.552514][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1764.552514][   T73]      fib6_nh_init+0xa22/0x1580
[ 1764.552514][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1764.552514][   T73]      ip6_route_add+0x1c/0x140
[ 1764.552514][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1764.552514][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1764.552514][   T73]      netlink_rcv_skb+0x130/0x360
[ 1764.552514][   T73]      netlink_unicast+0x449/0x710
[ 1764.552514][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1764.552514][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1764.552514][   T73]      ___sys_sendmsg+0xee/0x170
[ 1764.552514][   T73]      __sys_sendmsg+0xcd/0x170
[ 1764.552514][   T73]      do_syscall_64+0xc6/0x1e0
[ 1764.552514][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1764.552514][   T73] 
[ 1764.554566][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1764.554566][   T73]      dst_init+0x84/0x4a0
[ 1764.554566][   T73]      dst_alloc+0x97/0x150
[ 1764.554566][   T73]      ip6_dst_alloc+0x23/0x90
[ 1764.554566][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1764.554566][   T73]      ip6_pol_route+0x56f/0x840
[ 1764.554566][   T73]      fib6_rule_lookup+0x456/0x630
[ 1764.554566][   T73]      ip6_route_input+0x59c/0xa50
[ 1764.554566][   T73]      ipv6_rcv+0x397/0x810
[ 1764.554566][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1764.554566][   T73]      process_backlog+0x101/0x620
[ 1764.554566][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1764.554566][   T73]      net_rx_action+0x495/0xbe0
[ 1764.554566][   T73]      __do_softirq+0x1b5/0x7f6
[ 1764.554566][   T73] 
[ 1764.556376][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1764.556376][   T73]      netdev_get_by_index+0x5e/0x80
[ 1764.556376][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1764.556376][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1764.556376][   T73]      ip6_route_add+0x1c/0x140
[ 1764.556376][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1764.556376][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1764.556376][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1764.556376][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1764.556376][   T73]      netlink_rcv_skb+0x130/0x360
[ 1764.556376][   T73]      netlink_unicast+0x449/0x710
[ 1764.556376][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1764.556376][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1764.556376][   T73]      ___sys_sendmsg+0xee/0x170
[ 1764.556376][   T73]      __sys_sendmsg+0xcd/0x170
[ 1764.556376][   T73]      do_syscall_64+0xc6/0x1e0
[ 1764.556376][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1764.556376][   T73] 
[ 1764.558549][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1764.558549][   T73]      netdev_get_by_index+0x5e/0x80
[ 1764.558549][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1764.558549][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1764.558549][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1764.558549][   T73]      ipv6_add_addr+0x411/0x2000
[ 1764.558549][   T73]      inet6_addr_add+0x30e/0xa40
[ 1764.558549][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1764.558549][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1764.558549][   T73]      netlink_rcv_skb+0x130/0x360
[ 1764.558549][   T73]      netlink_unicast+0x449/0x710
[ 1764.558549][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1764.558549][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1764.558549][   T73]      ___sys_sendmsg+0xee/0x170
[ 1764.558549][   T73]      __sys_sendmsg+0xcd/0x170
[ 1764.558549][   T73]      do_syscall_64+0xc6/0x1e0
[ 1764.558549][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1764.558549][   T73] 
[ 1764.560844][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1764.560844][   T73]      netdev_get_by_index+0x5e/0x80
[ 1764.560844][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1764.560844][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1764.560844][   T73]      ip6_route_add+0x1c/0x140
[ 1764.560844][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1764.560844][   T73]      addrconf_add_dev+0xe2/0x170
[ 1764.560844][   T73]      inet6_addr_add+0x12f/0xa40
[ 1764.560844][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1764.560844][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1764.560844][   T73]      netlink_rcv_skb+0x130/0x360
[ 1764.560844][   T73]      netlink_unicast+0x449/0x710
[ 1764.560844][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1764.560844][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1764.560844][   T73]      ___sys_sendmsg+0xee/0x170
[ 1764.560844][   T73]      __sys_sendmsg+0xcd/0x170
[ 1764.560844][   T73]      do_syscall_64+0xc6/0x1e0
[ 1764.560844][   T73] 
[ 1764.563048][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1764.563048][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1764.563048][   T73]      ipv6_find_idev+0x102/0x170
[ 1764.563048][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1764.563048][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1764.563048][   T73]      netlink_rcv_skb+0x130/0x360
[ 1764.563048][   T73]      netlink_unicast+0x449/0x710
[ 1764.563048][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1764.563048][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1764.563048][   T73]      ___sys_sendmsg+0xee/0x170
[ 1764.563048][   T73]      __sys_sendmsg+0xcd/0x170
[ 1764.563048][   T73]      do_syscall_64+0xc6/0x1e0
[ 1764.563048][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1764.563048][   T73] 
[ 1764.564773][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1764.564773][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1764.564773][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1764.564773][   T73]      ipv6_find_idev+0x102/0x170
[ 1764.564773][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1764.564773][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1764.564773][   T73]      netlink_rcv_skb+0x130/0x360
[ 1764.564773][   T73]      netlink_unicast+0x449/0x710
[ 1764.564773][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1764.564773][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1764.564773][   T73]      ___sys_sendmsg+0xee/0x170
[ 1764.564773][   T73]      __sys_sendmsg+0xcd/0x170
[ 1764.564773][   T73]      do_syscall_64+0xc6/0x1e0
[ 1764.564773][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1764.564773][   T73] 
[ 1764.566663][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1764.567000][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1764.567000][   T73]      netdev_get_by_index+0x5e/0x80
[ 1764.567000][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1764.567000][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1764.567000][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1764.567000][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1764.567000][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1764.567000][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1764.567000][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1764.567000][   T73]      addrconf_dad_begin+0x310/0x670
[ 1764.567000][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1764.567000][   T73]      process_one_work+0x84d/0x18a0
[ 1764.567000][   T73]      worker_thread+0x587/0xd30
[ 1764.567000][   T73]      kthread+0x28a/0x350
[ 1764.567000][   T73]      ret_from_fork+0x31/0x70
[ 1764.567000][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1764.567000][   T73] 
[ 1764.569078][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1764.569078][   T73]      netdev_get_by_index+0x5e/0x80
[ 1764.569078][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1764.569078][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1764.569078][   T73]      ip6_route_add+0x1c/0x140
[ 1764.569078][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1764.569078][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1764.569078][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1764.569078][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1764.569078][   T73]      netlink_rcv_skb+0x130/0x360
[ 1764.569078][   T73]      netlink_unicast+0x449/0x710
[ 1764.569078][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1764.569078][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1764.569078][   T73]      ___sys_sendmsg+0xee/0x170
[ 1764.569078][   T73]      __sys_sendmsg+0xcd/0x170
[ 1764.569078][   T73]      do_syscall_64+0xc6/0x1e0
[ 1764.569078][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1764.569078][   T73] 
[ 1764.571374][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1764.571374][   T73]      netdev_get_by_index+0x5e/0x80
[ 1764.571374][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1764.571374][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1764.571374][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1764.571374][   T73]      ipv6_add_addr+0x411/0x2000
[ 1764.571374][   T73]      inet6_addr_add+0x30e/0xa40
[ 1764.571374][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1764.571374][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1764.571374][   T73]      netlink_rcv_skb+0x130/0x360
[ 1764.571374][   T73]      netlink_unicast+0x449/0x710
[ 1764.571374][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1764.571374][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1764.571374][   T73]      ___sys_sendmsg+0xee/0x170
[ 1764.571374][   T73]      __sys_sendmsg+0xcd/0x170
[ 1764.571374][   T73]      do_syscall_64+0xc6/0x1e0
[ 1764.571374][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1764.571374][   T73] 
[ 1764.573615][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1764.573615][   T73]      netdev_get_by_index+0x5e/0x80
[ 1764.573615][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1764.573615][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1764.573615][   T73]      ip6_route_add+0x1c/0x140
[ 1764.573615][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1764.573615][   T73]      addrconf_add_dev+0xe2/0x170
[ 1764.573615][   T73]      inet6_addr_add+0x12f/0xa40
[ 1764.573615][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1764.573615][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1764.573615][   T73]      netlink_rcv_skb+0x130/0x360
[ 1764.573615][   T73]      netlink_unicast+0x449/0x710
[ 1764.573615][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1764.573615][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1764.573615][   T73]      ___sys_sendmsg+0xee/0x170
[ 1764.573615][   T73]      __sys_sendmsg+0xcd/0x170
[ 1764.573615][   T73]      do_syscall_64+0xc6/0x1e0
[ 1764.573615][   T73] 
[ 1764.575813][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1764.575813][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1764.575813][   T73]      ipv6_find_idev+0x102/0x170
[ 1764.575813][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1764.575813][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1764.575813][   T73]      netlink_rcv_skb+0x130/0x360
[ 1764.575813][   T73]      netlink_unicast+0x449/0x710
[ 1764.575813][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1764.575813][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1764.575813][   T73]      ___sys_sendmsg+0xee/0x170
[ 1764.575813][   T73]      __sys_sendmsg+0xcd/0x170
[ 1764.575813][   T73]      do_syscall_64+0xc6/0x1e0
[ 1764.575813][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1764.575813][   T73] 
[ 1764.577545][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1764.577545][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1764.577545][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1764.577545][   T73]      ipv6_find_idev+0x102/0x170
[ 1764.577545][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1764.577545][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1764.577545][   T73]      netlink_rcv_skb+0x130/0x360
[ 1764.577545][   T73]      netlink_unicast+0x449/0x710
[ 1764.577545][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1764.577545][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1764.577545][   T73]      ___sys_sendmsg+0xee/0x170
[ 1764.577545][   T73]      __sys_sendmsg+0xcd/0x170
[ 1764.577545][   T73]      do_syscall_64+0xc6/0x1e0
[ 1764.577545][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1764.577545][   T73] 
[ 1774.831837][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1774.832243][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1774.832243][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1774.832243][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1774.832243][   T73]      fib6_nh_init+0xa22/0x1580
[ 1774.832243][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1774.832243][   T73]      ip6_route_add+0x1c/0x140
[ 1774.832243][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1774.832243][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1774.832243][   T73]      netlink_rcv_skb+0x130/0x360
[ 1774.832243][   T73]      netlink_unicast+0x449/0x710
[ 1774.832243][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1774.832243][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1774.832243][   T73]      ___sys_sendmsg+0xee/0x170
[ 1774.832243][   T73]      __sys_sendmsg+0xcd/0x170
[ 1774.832243][   T73]      do_syscall_64+0xc6/0x1e0
[ 1774.832243][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1774.832243][   T73] 
[ 1774.834124][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1774.834124][   T73]      dst_init+0x84/0x4a0
[ 1774.834124][   T73]      dst_alloc+0x97/0x150
[ 1774.834124][   T73]      ip6_dst_alloc+0x23/0x90
[ 1774.834124][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1774.834124][   T73]      ip6_pol_route+0x56f/0x840
[ 1774.834124][   T73]      fib6_rule_lookup+0x456/0x630
[ 1774.834124][   T73]      ip6_route_input+0x59c/0xa50
[ 1774.834124][   T73]      ipv6_rcv+0x397/0x810
[ 1774.834124][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1774.834124][   T73]      process_backlog+0x101/0x620
[ 1774.834124][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1774.834124][   T73]      net_rx_action+0x495/0xbe0
[ 1774.834124][   T73]      __do_softirq+0x1b5/0x7f6
[ 1774.834124][   T73] 
[ 1774.835770][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1774.835770][   T73]      netdev_get_by_index+0x5e/0x80
[ 1774.835770][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1774.835770][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1774.835770][   T73]      ip6_route_add+0x1c/0x140
[ 1774.835770][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1774.835770][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1774.835770][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1774.835770][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1774.835770][   T73]      netlink_rcv_skb+0x130/0x360
[ 1774.835770][   T73]      netlink_unicast+0x449/0x710
[ 1774.835770][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1774.835770][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1774.835770][   T73]      ___sys_sendmsg+0xee/0x170
[ 1774.835770][   T73]      __sys_sendmsg+0xcd/0x170
[ 1774.835770][   T73]      do_syscall_64+0xc6/0x1e0
[ 1774.835770][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1774.835770][   T73] 
[ 1774.837788][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1774.837788][   T73]      netdev_get_by_index+0x5e/0x80
[ 1774.837788][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1774.837788][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1774.837788][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1774.837788][   T73]      ipv6_add_addr+0x411/0x2000
[ 1774.837788][   T73]      inet6_addr_add+0x30e/0xa40
[ 1774.837788][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1774.837788][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1774.837788][   T73]      netlink_rcv_skb+0x130/0x360
[ 1774.837788][   T73]      netlink_unicast+0x449/0x710
[ 1774.837788][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1774.837788][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1774.837788][   T73]      ___sys_sendmsg+0xee/0x170
[ 1774.837788][   T73]      __sys_sendmsg+0xcd/0x170
[ 1774.837788][   T73]      do_syscall_64+0xc6/0x1e0
[ 1774.837788][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1774.837788][   T73] 
[ 1774.839918][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1774.839918][   T73]      netdev_get_by_index+0x5e/0x80
[ 1774.839918][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1774.839918][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1774.839918][   T73]      ip6_route_add+0x1c/0x140
[ 1774.839918][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1774.839918][   T73]      addrconf_add_dev+0xe2/0x170
[ 1774.839918][   T73]      inet6_addr_add+0x12f/0xa40
[ 1774.839918][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1774.839918][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1774.839918][   T73]      netlink_rcv_skb+0x130/0x360
[ 1774.839918][   T73]      netlink_unicast+0x449/0x710
[ 1774.839918][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1774.839918][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1774.839918][   T73]      ___sys_sendmsg+0xee/0x170
[ 1774.839918][   T73]      __sys_sendmsg+0xcd/0x170
[ 1774.839918][   T73]      do_syscall_64+0xc6/0x1e0
[ 1774.839918][   T73] 
[ 1774.841907][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1774.841907][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1774.841907][   T73]      ipv6_find_idev+0x102/0x170
[ 1774.841907][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1774.841907][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1774.841907][   T73]      netlink_rcv_skb+0x130/0x360
[ 1774.841907][   T73]      netlink_unicast+0x449/0x710
[ 1774.841907][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1774.841907][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1774.841907][   T73]      ___sys_sendmsg+0xee/0x170
[ 1774.841907][   T73]      __sys_sendmsg+0xcd/0x170
[ 1774.841907][   T73]      do_syscall_64+0xc6/0x1e0
[ 1774.841907][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1774.841907][   T73] 
[ 1774.843458][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1774.843458][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1774.843458][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1774.843458][   T73]      ipv6_find_idev+0x102/0x170
[ 1774.843458][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1774.843458][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1774.843458][   T73]      netlink_rcv_skb+0x130/0x360
[ 1774.843458][   T73]      netlink_unicast+0x449/0x710
[ 1774.843458][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1774.843458][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1774.843458][   T73]      ___sys_sendmsg+0xee/0x170
[ 1774.843458][   T73]      __sys_sendmsg+0xcd/0x170
[ 1774.843458][   T73]      do_syscall_64+0xc6/0x1e0
[ 1774.843458][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1774.843458][   T73] 
[ 1774.845142][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1774.845413][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1774.845413][   T73]      netdev_get_by_index+0x5e/0x80
[ 1774.845413][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1774.845413][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1774.845413][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1774.845413][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1774.845413][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1774.845413][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1774.845413][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1774.845413][   T73]      addrconf_dad_begin+0x310/0x670
[ 1774.845413][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1774.845413][   T73]      process_one_work+0x84d/0x18a0
[ 1774.845413][   T73]      worker_thread+0x587/0xd30
[ 1774.845413][   T73]      kthread+0x28a/0x350
[ 1774.845413][   T73]      ret_from_fork+0x31/0x70
[ 1774.845413][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1774.845413][   T73] 
[ 1774.847341][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1774.847341][   T73]      netdev_get_by_index+0x5e/0x80
[ 1774.847341][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1774.847341][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1774.847341][   T73]      ip6_route_add+0x1c/0x140
[ 1774.847341][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1774.847341][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1774.847341][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1774.847341][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1774.847341][   T73]      netlink_rcv_skb+0x130/0x360
[ 1774.847341][   T73]      netlink_unicast+0x449/0x710
[ 1774.847341][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1774.847341][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1774.847341][   T73]      ___sys_sendmsg+0xee/0x170
[ 1774.847341][   T73]      __sys_sendmsg+0xcd/0x170
[ 1774.847341][   T73]      do_syscall_64+0xc6/0x1e0
[ 1774.847341][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1774.847341][   T73] 
[ 1774.849328][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1774.849328][   T73]      netdev_get_by_index+0x5e/0x80
[ 1774.849328][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1774.849328][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1774.849328][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1774.849328][   T73]      ipv6_add_addr+0x411/0x2000
[ 1774.849328][   T73]      inet6_addr_add+0x30e/0xa40
[ 1774.849328][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1774.849328][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1774.849328][   T73]      netlink_rcv_skb+0x130/0x360
[ 1774.849328][   T73]      netlink_unicast+0x449/0x710
[ 1774.849328][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1774.849328][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1774.849328][   T73]      ___sys_sendmsg+0xee/0x170
[ 1774.849328][   T73]      __sys_sendmsg+0xcd/0x170
[ 1774.849328][   T73]      do_syscall_64+0xc6/0x1e0
[ 1774.849328][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1774.849328][   T73] 
[ 1774.851312][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1774.851312][   T73]      netdev_get_by_index+0x5e/0x80
[ 1774.851312][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1774.851312][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1774.851312][   T73]      ip6_route_add+0x1c/0x140
[ 1774.851312][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1774.851312][   T73]      addrconf_add_dev+0xe2/0x170
[ 1774.851312][   T73]      inet6_addr_add+0x12f/0xa40
[ 1774.851312][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1774.851312][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1774.851312][   T73]      netlink_rcv_skb+0x130/0x360
[ 1774.851312][   T73]      netlink_unicast+0x449/0x710
[ 1774.851312][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1774.851312][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1774.851312][   T73]      ___sys_sendmsg+0xee/0x170
[ 1774.851312][   T73]      __sys_sendmsg+0xcd/0x170
[ 1774.851312][   T73]      do_syscall_64+0xc6/0x1e0
[ 1774.851312][   T73] 
[ 1774.853268][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1774.853268][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1774.853268][   T73]      ipv6_find_idev+0x102/0x170
[ 1774.853268][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1774.853268][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1774.853268][   T73]      netlink_rcv_skb+0x130/0x360
[ 1774.853268][   T73]      netlink_unicast+0x449/0x710
[ 1774.853268][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1774.853268][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1774.853268][   T73]      ___sys_sendmsg+0xee/0x170
[ 1774.853268][   T73]      __sys_sendmsg+0xcd/0x170
[ 1774.853268][   T73]      do_syscall_64+0xc6/0x1e0
[ 1774.853268][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1774.853268][   T73] 
[ 1774.854797][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1774.854797][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1774.854797][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1774.854797][   T73]      ipv6_find_idev+0x102/0x170
[ 1774.854797][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1774.854797][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1774.854797][   T73]      netlink_rcv_skb+0x130/0x360
[ 1774.854797][   T73]      netlink_unicast+0x449/0x710
[ 1774.854797][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1774.854797][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1774.854797][   T73]      ___sys_sendmsg+0xee/0x170
[ 1774.854797][   T73]      __sys_sendmsg+0xcd/0x170
[ 1774.854797][   T73]      do_syscall_64+0xc6/0x1e0
[ 1774.854797][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1774.854797][   T73] 
[ 1774.856472][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1774.856757][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1774.856757][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1774.856757][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1774.856757][   T73]      fib6_nh_init+0xa22/0x1580
[ 1774.856757][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1774.856757][   T73]      ip6_route_add+0x1c/0x140
[ 1774.856757][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1774.856757][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1774.856757][   T73]      netlink_rcv_skb+0x130/0x360
[ 1774.856757][   T73]      netlink_unicast+0x449/0x710
[ 1774.856757][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1774.856757][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1774.856757][   T73]      ___sys_sendmsg+0xee/0x170
[ 1774.856757][   T73]      __sys_sendmsg+0xcd/0x170
[ 1774.856757][   T73]      do_syscall_64+0xc6/0x1e0
[ 1774.856757][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1774.856757][   T73] 
[ 1774.858831][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1774.858831][   T73]      dst_init+0x84/0x4a0
[ 1774.858831][   T73]      dst_alloc+0x97/0x150
[ 1774.858831][   T73]      ip6_dst_alloc+0x23/0x90
[ 1774.858831][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1774.858831][   T73]      ip6_pol_route+0x56f/0x840
[ 1774.858831][   T73]      fib6_rule_lookup+0x456/0x630
[ 1774.858831][   T73]      ip6_route_input+0x59c/0xa50
[ 1774.858831][   T73]      ipv6_rcv+0x397/0x810
[ 1774.858831][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1774.858831][   T73]      process_backlog+0x101/0x620
[ 1774.858831][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1774.858831][   T73]      net_rx_action+0x495/0xbe0
[ 1774.858831][   T73]      __do_softirq+0x1b5/0x7f6
[ 1774.858831][   T73] 
[ 1774.860696][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1774.860696][   T73]      netdev_get_by_index+0x5e/0x80
[ 1774.860696][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1774.860696][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1774.860696][   T73]      ip6_route_add+0x1c/0x140
[ 1774.860696][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1774.860696][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1774.860696][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1774.860696][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1774.860696][   T73]      netlink_rcv_skb+0x130/0x360
[ 1774.860696][   T73]      netlink_unicast+0x449/0x710
[ 1774.860696][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1774.860696][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1774.860696][   T73]      ___sys_sendmsg+0xee/0x170
[ 1774.860696][   T73]      __sys_sendmsg+0xcd/0x170
[ 1774.860696][   T73]      do_syscall_64+0xc6/0x1e0
[ 1774.860696][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1774.860696][   T73] 
[ 1774.862859][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1774.862859][   T73]      netdev_get_by_index+0x5e/0x80
[ 1774.862859][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1774.862859][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1774.862859][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1774.862859][   T73]      ipv6_add_addr+0x411/0x2000
[ 1774.862859][   T73]      inet6_addr_add+0x30e/0xa40
[ 1774.862859][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1774.862859][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1774.862859][   T73]      netlink_rcv_skb+0x130/0x360
[ 1774.862859][   T73]      netlink_unicast+0x449/0x710
[ 1774.862859][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1774.862859][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1774.862859][   T73]      ___sys_sendmsg+0xee/0x170
[ 1774.862859][   T73]      __sys_sendmsg+0xcd/0x170
[ 1774.862859][   T73]      do_syscall_64+0xc6/0x1e0
[ 1774.862859][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1774.862859][   T73] 
[ 1774.865094][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1774.865094][   T73]      netdev_get_by_index+0x5e/0x80
[ 1774.865094][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1774.865094][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1774.865094][   T73]      ip6_route_add+0x1c/0x140
[ 1774.865094][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1774.865094][   T73]      addrconf_add_dev+0xe2/0x170
[ 1774.865094][   T73]      inet6_addr_add+0x12f/0xa40
[ 1774.865094][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1774.865094][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1774.865094][   T73]      netlink_rcv_skb+0x130/0x360
[ 1774.865094][   T73]      netlink_unicast+0x449/0x710
[ 1774.865094][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1774.865094][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1774.865094][   T73]      ___sys_sendmsg+0xee/0x170
[ 1774.865094][   T73]      __sys_sendmsg+0xcd/0x170
[ 1774.865094][   T73]      do_syscall_64+0xc6/0x1e0
[ 1774.865094][   T73] 
[ 1774.867311][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1774.867311][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1774.867311][   T73]      ipv6_find_idev+0x102/0x170
[ 1774.867311][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1774.867311][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1774.867311][   T73]      netlink_rcv_skb+0x130/0x360
[ 1774.867311][   T73]      netlink_unicast+0x449/0x710
[ 1774.867311][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1774.867311][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1774.867311][   T73]      ___sys_sendmsg+0xee/0x170
[ 1774.867311][   T73]      __sys_sendmsg+0xcd/0x170
[ 1774.867311][   T73]      do_syscall_64+0xc6/0x1e0
[ 1774.867311][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1774.867311][   T73] 
[ 1774.869084][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1774.869084][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1774.869084][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1774.869084][   T73]      ipv6_find_idev+0x102/0x170
[ 1774.869084][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1774.869084][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1774.869084][   T73]      netlink_rcv_skb+0x130/0x360
[ 1774.869084][   T73]      netlink_unicast+0x449/0x710
[ 1774.869084][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1774.869084][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1774.869084][   T73]      ___sys_sendmsg+0xee/0x170
[ 1774.869084][   T73]      __sys_sendmsg+0xcd/0x170
[ 1774.869084][   T73]      do_syscall_64+0xc6/0x1e0
[ 1774.869084][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1774.869084][   T73] 
[ 1774.870940][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1774.871271][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1774.871271][   T73]      netdev_get_by_index+0x5e/0x80
[ 1774.871271][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1774.871271][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1774.871271][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1774.871271][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1774.871271][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1774.871271][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1774.871271][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1774.871271][   T73]      addrconf_dad_begin+0x310/0x670
[ 1774.871271][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1774.871271][   T73]      process_one_work+0x84d/0x18a0
[ 1774.871271][   T73]      worker_thread+0x587/0xd30
[ 1774.871271][   T73]      kthread+0x28a/0x350
[ 1774.871271][   T73]      ret_from_fork+0x31/0x70
[ 1774.871271][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1774.871271][   T73] 
[ 1774.873359][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1774.873359][   T73]      netdev_get_by_index+0x5e/0x80
[ 1774.873359][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1774.873359][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1774.873359][   T73]      ip6_route_add+0x1c/0x140
[ 1774.873359][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1774.873359][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1774.873359][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1774.873359][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1774.873359][   T73]      netlink_rcv_skb+0x130/0x360
[ 1774.873359][   T73]      netlink_unicast+0x449/0x710
[ 1774.873359][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1774.873359][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1774.873359][   T73]      ___sys_sendmsg+0xee/0x170
[ 1774.873359][   T73]      __sys_sendmsg+0xcd/0x170
[ 1774.873359][   T73]      do_syscall_64+0xc6/0x1e0
[ 1774.873359][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1774.873359][   T73] 
[ 1774.875588][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1774.875588][   T73]      netdev_get_by_index+0x5e/0x80
[ 1774.875588][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1774.875588][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1774.875588][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1774.875588][   T73]      ipv6_add_addr+0x411/0x2000
[ 1774.875588][   T73]      inet6_addr_add+0x30e/0xa40
[ 1774.875588][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1774.875588][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1774.875588][   T73]      netlink_rcv_skb+0x130/0x360
[ 1774.875588][   T73]      netlink_unicast+0x449/0x710
[ 1774.875588][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1774.875588][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1774.875588][   T73]      ___sys_sendmsg+0xee/0x170
[ 1774.875588][   T73]      __sys_sendmsg+0xcd/0x170
[ 1774.875588][   T73]      do_syscall_64+0xc6/0x1e0
[ 1774.875588][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1774.875588][   T73] 
[ 1774.877842][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1774.877842][   T73]      netdev_get_by_index+0x5e/0x80
[ 1774.877842][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1774.877842][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1774.877842][   T73]      ip6_route_add+0x1c/0x140
[ 1774.877842][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1774.877842][   T73]      addrconf_add_dev+0xe2/0x170
[ 1774.877842][   T73]      inet6_addr_add+0x12f/0xa40
[ 1774.877842][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1774.877842][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1774.877842][   T73]      netlink_rcv_skb+0x130/0x360
[ 1774.877842][   T73]      netlink_unicast+0x449/0x710
[ 1774.877842][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1774.877842][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1774.877842][   T73]      ___sys_sendmsg+0xee/0x170
[ 1774.877842][   T73]      __sys_sendmsg+0xcd/0x170
[ 1774.877842][   T73]      do_syscall_64+0xc6/0x1e0
[ 1774.877842][   T73] 
[ 1774.880122][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1774.880122][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1774.880122][   T73]      ipv6_find_idev+0x102/0x170
[ 1774.880122][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1774.880122][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1774.880122][   T73]      netlink_rcv_skb+0x130/0x360
[ 1774.880122][   T73]      netlink_unicast+0x449/0x710
[ 1774.880122][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1774.880122][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1774.880122][   T73]      ___sys_sendmsg+0xee/0x170
[ 1774.880122][   T73]      __sys_sendmsg+0xcd/0x170
[ 1774.880122][   T73]      do_syscall_64+0xc6/0x1e0
[ 1774.880122][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1774.880122][   T73] 
[ 1774.881832][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1774.881832][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1774.881832][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1774.881832][   T73]      ipv6_find_idev+0x102/0x170
[ 1774.881832][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1774.881832][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1774.881832][   T73]      netlink_rcv_skb+0x130/0x360
[ 1774.881832][   T73]      netlink_unicast+0x449/0x710
[ 1774.881832][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1774.881832][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1774.881832][   T73]      ___sys_sendmsg+0xee/0x170
[ 1774.881832][   T73]      __sys_sendmsg+0xcd/0x170
[ 1774.881832][   T73]      do_syscall_64+0xc6/0x1e0
[ 1774.881832][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1774.881832][   T73] 
[ 1785.135744][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1785.136129][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1785.136129][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1785.136129][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1785.136129][   T73]      fib6_nh_init+0xa22/0x1580
[ 1785.136129][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1785.136129][   T73]      ip6_route_add+0x1c/0x140
[ 1785.136129][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1785.136129][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1785.136129][   T73]      netlink_rcv_skb+0x130/0x360
[ 1785.136129][   T73]      netlink_unicast+0x449/0x710
[ 1785.136129][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1785.136129][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1785.136129][   T73]      ___sys_sendmsg+0xee/0x170
[ 1785.136129][   T73]      __sys_sendmsg+0xcd/0x170
[ 1785.136129][   T73]      do_syscall_64+0xc6/0x1e0
[ 1785.136129][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1785.136129][   T73] 
[ 1785.138205][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1785.138205][   T73]      dst_init+0x84/0x4a0
[ 1785.138205][   T73]      dst_alloc+0x97/0x150
[ 1785.138205][   T73]      ip6_dst_alloc+0x23/0x90
[ 1785.138205][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1785.138205][   T73]      ip6_pol_route+0x56f/0x840
[ 1785.138205][   T73]      fib6_rule_lookup+0x456/0x630
[ 1785.138205][   T73]      ip6_route_input+0x59c/0xa50
[ 1785.138205][   T73]      ipv6_rcv+0x397/0x810
[ 1785.138205][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1785.138205][   T73]      process_backlog+0x101/0x620
[ 1785.138205][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1785.138205][   T73]      net_rx_action+0x495/0xbe0
[ 1785.138205][   T73]      __do_softirq+0x1b5/0x7f6
[ 1785.138205][   T73] 
[ 1785.139908][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1785.139908][   T73]      netdev_get_by_index+0x5e/0x80
[ 1785.139908][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1785.139908][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1785.139908][   T73]      ip6_route_add+0x1c/0x140
[ 1785.139908][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1785.139908][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1785.139908][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1785.139908][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1785.139908][   T73]      netlink_rcv_skb+0x130/0x360
[ 1785.139908][   T73]      netlink_unicast+0x449/0x710
[ 1785.139908][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1785.139908][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1785.139908][   T73]      ___sys_sendmsg+0xee/0x170
[ 1785.139908][   T73]      __sys_sendmsg+0xcd/0x170
[ 1785.139908][   T73]      do_syscall_64+0xc6/0x1e0
[ 1785.139908][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1785.139908][   T73] 
[ 1785.141990][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1785.141990][   T73]      netdev_get_by_index+0x5e/0x80
[ 1785.141990][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1785.141990][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1785.141990][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1785.141990][   T73]      ipv6_add_addr+0x411/0x2000
[ 1785.141990][   T73]      inet6_addr_add+0x30e/0xa40
[ 1785.141990][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1785.141990][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1785.141990][   T73]      netlink_rcv_skb+0x130/0x360
[ 1785.141990][   T73]      netlink_unicast+0x449/0x710
[ 1785.141990][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1785.141990][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1785.141990][   T73]      ___sys_sendmsg+0xee/0x170
[ 1785.141990][   T73]      __sys_sendmsg+0xcd/0x170
[ 1785.141990][   T73]      do_syscall_64+0xc6/0x1e0
[ 1785.141990][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1785.141990][   T73] 
[ 1785.144067][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1785.144067][   T73]      netdev_get_by_index+0x5e/0x80
[ 1785.144067][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1785.144067][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1785.144067][   T73]      ip6_route_add+0x1c/0x140
[ 1785.144067][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1785.144067][   T73]      addrconf_add_dev+0xe2/0x170
[ 1785.144067][   T73]      inet6_addr_add+0x12f/0xa40
[ 1785.144067][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1785.144067][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1785.144067][   T73]      netlink_rcv_skb+0x130/0x360
[ 1785.144067][   T73]      netlink_unicast+0x449/0x710
[ 1785.144067][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1785.144067][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1785.144067][   T73]      ___sys_sendmsg+0xee/0x170
[ 1785.144067][   T73]      __sys_sendmsg+0xcd/0x170
[ 1785.144067][   T73]      do_syscall_64+0xc6/0x1e0
[ 1785.144067][   T73] 
[ 1785.146121][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1785.146121][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1785.146121][   T73]      ipv6_find_idev+0x102/0x170
[ 1785.146121][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1785.146121][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1785.146121][   T73]      netlink_rcv_skb+0x130/0x360
[ 1785.146121][   T73]      netlink_unicast+0x449/0x710
[ 1785.146121][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1785.146121][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1785.146121][   T73]      ___sys_sendmsg+0xee/0x170
[ 1785.146121][   T73]      __sys_sendmsg+0xcd/0x170
[ 1785.146121][   T73]      do_syscall_64+0xc6/0x1e0
[ 1785.146121][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1785.146121][   T73] 
[ 1785.147728][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1785.147728][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1785.147728][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1785.147728][   T73]      ipv6_find_idev+0x102/0x170
[ 1785.147728][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1785.147728][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1785.147728][   T73]      netlink_rcv_skb+0x130/0x360
[ 1785.147728][   T73]      netlink_unicast+0x449/0x710
[ 1785.147728][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1785.147728][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1785.147728][   T73]      ___sys_sendmsg+0xee/0x170
[ 1785.147728][   T73]      __sys_sendmsg+0xcd/0x170
[ 1785.147728][   T73]      do_syscall_64+0xc6/0x1e0
[ 1785.147728][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1785.147728][   T73] 
[ 1785.149490][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1785.149790][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1785.149790][   T73]      netdev_get_by_index+0x5e/0x80
[ 1785.149790][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1785.149790][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1785.149790][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1785.149790][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1785.149790][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1785.149790][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1785.149790][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1785.149790][   T73]      addrconf_dad_begin+0x310/0x670
[ 1785.149790][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1785.149790][   T73]      process_one_work+0x84d/0x18a0
[ 1785.149790][   T73]      worker_thread+0x587/0xd30
[ 1785.149790][   T73]      kthread+0x28a/0x350
[ 1785.149790][   T73]      ret_from_fork+0x31/0x70
[ 1785.149790][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1785.149790][   T73] 
[ 1785.151780][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1785.151780][   T73]      netdev_get_by_index+0x5e/0x80
[ 1785.151780][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1785.151780][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1785.151780][   T73]      ip6_route_add+0x1c/0x140
[ 1785.151780][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1785.151780][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1785.151780][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1785.151780][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1785.151780][   T73]      netlink_rcv_skb+0x130/0x360
[ 1785.151780][   T73]      netlink_unicast+0x449/0x710
[ 1785.151780][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1785.151780][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1785.151780][   T73]      ___sys_sendmsg+0xee/0x170
[ 1785.151780][   T73]      __sys_sendmsg+0xcd/0x170
[ 1785.151780][   T73]      do_syscall_64+0xc6/0x1e0
[ 1785.151780][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1785.151780][   T73] 
[ 1785.153860][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1785.153860][   T73]      netdev_get_by_index+0x5e/0x80
[ 1785.153860][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1785.153860][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1785.153860][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1785.153860][   T73]      ipv6_add_addr+0x411/0x2000
[ 1785.153860][   T73]      inet6_addr_add+0x30e/0xa40
[ 1785.153860][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1785.153860][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1785.153860][   T73]      netlink_rcv_skb+0x130/0x360
[ 1785.153860][   T73]      netlink_unicast+0x449/0x710
[ 1785.153860][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1785.153860][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1785.153860][   T73]      ___sys_sendmsg+0xee/0x170
[ 1785.153860][   T73]      __sys_sendmsg+0xcd/0x170
[ 1785.153860][   T73]      do_syscall_64+0xc6/0x1e0
[ 1785.153860][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1785.153860][   T73] 
[ 1785.155937][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1785.155937][   T73]      netdev_get_by_index+0x5e/0x80
[ 1785.155937][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1785.155937][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1785.155937][   T73]      ip6_route_add+0x1c/0x140
[ 1785.155937][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1785.155937][   T73]      addrconf_add_dev+0xe2/0x170
[ 1785.155937][   T73]      inet6_addr_add+0x12f/0xa40
[ 1785.155937][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1785.155937][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1785.155937][   T73]      netlink_rcv_skb+0x130/0x360
[ 1785.155937][   T73]      netlink_unicast+0x449/0x710
[ 1785.155937][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1785.155937][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1785.155937][   T73]      ___sys_sendmsg+0xee/0x170
[ 1785.155937][   T73]      __sys_sendmsg+0xcd/0x170
[ 1785.155937][   T73]      do_syscall_64+0xc6/0x1e0
[ 1785.155937][   T73] 
[ 1785.157984][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1785.157984][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1785.157984][   T73]      ipv6_find_idev+0x102/0x170
[ 1785.157984][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1785.157984][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1785.157984][   T73]      netlink_rcv_skb+0x130/0x360
[ 1785.157984][   T73]      netlink_unicast+0x449/0x710
[ 1785.157984][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1785.157984][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1785.157984][   T73]      ___sys_sendmsg+0xee/0x170
[ 1785.157984][   T73]      __sys_sendmsg+0xcd/0x170
[ 1785.157984][   T73]      do_syscall_64+0xc6/0x1e0
[ 1785.157984][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1785.157984][   T73] 
[ 1785.159581][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1785.159581][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1785.159581][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1785.159581][   T73]      ipv6_find_idev+0x102/0x170
[ 1785.159581][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1785.159581][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1785.159581][   T73]      netlink_rcv_skb+0x130/0x360
[ 1785.159581][   T73]      netlink_unicast+0x449/0x710
[ 1785.159581][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1785.159581][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1785.159581][   T73]      ___sys_sendmsg+0xee/0x170
[ 1785.159581][   T73]      __sys_sendmsg+0xcd/0x170
[ 1785.159581][   T73]      do_syscall_64+0xc6/0x1e0
[ 1785.159581][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1785.159581][   T73] 
[ 1785.161345][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1785.161629][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1785.161629][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1785.161629][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1785.161629][   T73]      fib6_nh_init+0xa22/0x1580
[ 1785.161629][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1785.161629][   T73]      ip6_route_add+0x1c/0x140
[ 1785.161629][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1785.161629][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1785.161629][   T73]      netlink_rcv_skb+0x130/0x360
[ 1785.161629][   T73]      netlink_unicast+0x449/0x710
[ 1785.161629][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1785.161629][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1785.161629][   T73]      ___sys_sendmsg+0xee/0x170
[ 1785.161629][   T73]      __sys_sendmsg+0xcd/0x170
[ 1785.161629][   T73]      do_syscall_64+0xc6/0x1e0
[ 1785.161629][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1785.161629][   T73] 
[ 1785.163770][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1785.163770][   T73]      dst_init+0x84/0x4a0
[ 1785.163770][   T73]      dst_alloc+0x97/0x150
[ 1785.163770][   T73]      ip6_dst_alloc+0x23/0x90
[ 1785.163770][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1785.163770][   T73]      ip6_pol_route+0x56f/0x840
[ 1785.163770][   T73]      fib6_rule_lookup+0x456/0x630
[ 1785.163770][   T73]      ip6_route_input+0x59c/0xa50
[ 1785.163770][   T73]      ipv6_rcv+0x397/0x810
[ 1785.163770][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1785.163770][   T73]      process_backlog+0x101/0x620
[ 1785.163770][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1785.163770][   T73]      net_rx_action+0x495/0xbe0
[ 1785.163770][   T73]      __do_softirq+0x1b5/0x7f6
[ 1785.163770][   T73] 
[ 1785.165658][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1785.165658][   T73]      netdev_get_by_index+0x5e/0x80
[ 1785.165658][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1785.165658][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1785.165658][   T73]      ip6_route_add+0x1c/0x140
[ 1785.165658][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1785.165658][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1785.165658][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1785.165658][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1785.165658][   T73]      netlink_rcv_skb+0x130/0x360
[ 1785.165658][   T73]      netlink_unicast+0x449/0x710
[ 1785.165658][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1785.165658][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1785.165658][   T73]      ___sys_sendmsg+0xee/0x170
[ 1785.165658][   T73]      __sys_sendmsg+0xcd/0x170
[ 1785.165658][   T73]      do_syscall_64+0xc6/0x1e0
[ 1785.165658][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1785.165658][   T73] 
[ 1785.167929][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1785.167929][   T73]      netdev_get_by_index+0x5e/0x80
[ 1785.167929][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1785.167929][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1785.167929][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1785.167929][   T73]      ipv6_add_addr+0x411/0x2000
[ 1785.167929][   T73]      inet6_addr_add+0x30e/0xa40
[ 1785.167929][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1785.167929][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1785.167929][   T73]      netlink_rcv_skb+0x130/0x360
[ 1785.167929][   T73]      netlink_unicast+0x449/0x710
[ 1785.167929][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1785.167929][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1785.167929][   T73]      ___sys_sendmsg+0xee/0x170
[ 1785.167929][   T73]      __sys_sendmsg+0xcd/0x170
[ 1785.167929][   T73]      do_syscall_64+0xc6/0x1e0
[ 1785.167929][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1785.167929][   T73] 
[ 1785.170331][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1785.170331][   T73]      netdev_get_by_index+0x5e/0x80
[ 1785.170331][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1785.170331][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1785.170331][   T73]      ip6_route_add+0x1c/0x140
[ 1785.170331][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1785.170331][   T73]      addrconf_add_dev+0xe2/0x170
[ 1785.170331][   T73]      inet6_addr_add+0x12f/0xa40
[ 1785.170331][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1785.170331][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1785.170331][   T73]      netlink_rcv_skb+0x130/0x360
[ 1785.170331][   T73]      netlink_unicast+0x449/0x710
[ 1785.170331][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1785.170331][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1785.170331][   T73]      ___sys_sendmsg+0xee/0x170
[ 1785.170331][   T73]      __sys_sendmsg+0xcd/0x170
[ 1785.170331][   T73]      do_syscall_64+0xc6/0x1e0
[ 1785.170331][   T73] 
[ 1785.172575][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1785.172575][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1785.172575][   T73]      ipv6_find_idev+0x102/0x170
[ 1785.172575][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1785.172575][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1785.172575][   T73]      netlink_rcv_skb+0x130/0x360
[ 1785.172575][   T73]      netlink_unicast+0x449/0x710
[ 1785.172575][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1785.172575][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1785.172575][   T73]      ___sys_sendmsg+0xee/0x170
[ 1785.172575][   T73]      __sys_sendmsg+0xcd/0x170
[ 1785.172575][   T73]      do_syscall_64+0xc6/0x1e0
[ 1785.172575][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1785.172575][   T73] 
[ 1785.174363][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1785.174363][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1785.174363][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1785.174363][   T73]      ipv6_find_idev+0x102/0x170
[ 1785.174363][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1785.174363][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1785.174363][   T73]      netlink_rcv_skb+0x130/0x360
[ 1785.174363][   T73]      netlink_unicast+0x449/0x710
[ 1785.174363][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1785.174363][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1785.174363][   T73]      ___sys_sendmsg+0xee/0x170
[ 1785.174363][   T73]      __sys_sendmsg+0xcd/0x170
[ 1785.174363][   T73]      do_syscall_64+0xc6/0x1e0
[ 1785.174363][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1785.174363][   T73] 
[ 1785.176369][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1785.176660][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1785.176660][   T73]      netdev_get_by_index+0x5e/0x80
[ 1785.176660][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1785.176660][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1785.176660][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1785.176660][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1785.176660][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1785.176660][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1785.176660][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1785.176660][   T73]      addrconf_dad_begin+0x310/0x670
[ 1785.176660][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1785.176660][   T73]      process_one_work+0x84d/0x18a0
[ 1785.176660][   T73]      worker_thread+0x587/0xd30
[ 1785.176660][   T73]      kthread+0x28a/0x350
[ 1785.176660][   T73]      ret_from_fork+0x31/0x70
[ 1785.176660][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1785.176660][   T73] 
[ 1785.178893][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1785.178893][   T73]      netdev_get_by_index+0x5e/0x80
[ 1785.178893][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1785.178893][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1785.178893][   T73]      ip6_route_add+0x1c/0x140
[ 1785.178893][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1785.178893][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1785.178893][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1785.178893][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1785.178893][   T73]      netlink_rcv_skb+0x130/0x360
[ 1785.178893][   T73]      netlink_unicast+0x449/0x710
[ 1785.178893][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1785.178893][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1785.178893][   T73]      ___sys_sendmsg+0xee/0x170
[ 1785.178893][   T73]      __sys_sendmsg+0xcd/0x170
[ 1785.178893][   T73]      do_syscall_64+0xc6/0x1e0
[ 1785.178893][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1785.178893][   T73] 
[ 1785.181280][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1785.181280][   T73]      netdev_get_by_index+0x5e/0x80
[ 1785.181280][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1785.181280][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1785.181280][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1785.181280][   T73]      ipv6_add_addr+0x411/0x2000
[ 1785.181280][   T73]      inet6_addr_add+0x30e/0xa40
[ 1785.181280][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1785.181280][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1785.181280][   T73]      netlink_rcv_skb+0x130/0x360
[ 1785.181280][   T73]      netlink_unicast+0x449/0x710
[ 1785.181280][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1785.181280][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1785.181280][   T73]      ___sys_sendmsg+0xee/0x170
[ 1785.181280][   T73]      __sys_sendmsg+0xcd/0x170
[ 1785.181280][   T73]      do_syscall_64+0xc6/0x1e0
[ 1785.181280][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1785.181280][   T73] 
[ 1785.183539][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1785.183539][   T73]      netdev_get_by_index+0x5e/0x80
[ 1785.183539][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1785.183539][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1785.183539][   T73]      ip6_route_add+0x1c/0x140
[ 1785.183539][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1785.183539][   T73]      addrconf_add_dev+0xe2/0x170
[ 1785.183539][   T73]      inet6_addr_add+0x12f/0xa40
[ 1785.183539][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1785.183539][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1785.183539][   T73]      netlink_rcv_skb+0x130/0x360
[ 1785.183539][   T73]      netlink_unicast+0x449/0x710
[ 1785.183539][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1785.183539][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1785.183539][   T73]      ___sys_sendmsg+0xee/0x170
[ 1785.183539][   T73]      __sys_sendmsg+0xcd/0x170
[ 1785.183539][   T73]      do_syscall_64+0xc6/0x1e0
[ 1785.183539][   T73] 
[ 1785.185824][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1785.185824][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1785.185824][   T73]      ipv6_find_idev+0x102/0x170
[ 1785.185824][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1785.185824][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1785.185824][   T73]      netlink_rcv_skb+0x130/0x360
[ 1785.185824][   T73]      netlink_unicast+0x449/0x710
[ 1785.185824][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1785.185824][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1785.185824][   T73]      ___sys_sendmsg+0xee/0x170
[ 1785.185824][   T73]      __sys_sendmsg+0xcd/0x170
[ 1785.185824][   T73]      do_syscall_64+0xc6/0x1e0
[ 1785.185824][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1785.185824][   T73] 
[ 1785.187616][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1785.187616][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1785.187616][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1785.187616][   T73]      ipv6_find_idev+0x102/0x170
[ 1785.187616][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1785.187616][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1785.187616][   T73]      netlink_rcv_skb+0x130/0x360
[ 1785.187616][   T73]      netlink_unicast+0x449/0x710
[ 1785.187616][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1785.187616][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1785.187616][   T73]      ___sys_sendmsg+0xee/0x170
[ 1785.187616][   T73]      __sys_sendmsg+0xcd/0x170
[ 1785.187616][   T73]      do_syscall_64+0xc6/0x1e0
[ 1785.187616][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1785.187616][   T73] 
[ 1795.231714][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1795.232119][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1795.232119][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1795.232119][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1795.232119][   T73]      fib6_nh_init+0xa22/0x1580
[ 1795.232119][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1795.232119][   T73]      ip6_route_add+0x1c/0x140
[ 1795.232119][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1795.232119][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1795.232119][   T73]      netlink_rcv_skb+0x130/0x360
[ 1795.232119][   T73]      netlink_unicast+0x449/0x710
[ 1795.232119][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1795.232119][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1795.232119][   T73]      ___sys_sendmsg+0xee/0x170
[ 1795.232119][   T73]      __sys_sendmsg+0xcd/0x170
[ 1795.232119][   T73]      do_syscall_64+0xc6/0x1e0
[ 1795.232119][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1795.232119][   T73] 
[ 1795.234150][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1795.234150][   T73]      dst_init+0x84/0x4a0
[ 1795.234150][   T73]      dst_alloc+0x97/0x150
[ 1795.234150][   T73]      ip6_dst_alloc+0x23/0x90
[ 1795.234150][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1795.234150][   T73]      ip6_pol_route+0x56f/0x840
[ 1795.234150][   T73]      fib6_rule_lookup+0x456/0x630
[ 1795.234150][   T73]      ip6_route_input+0x59c/0xa50
[ 1795.234150][   T73]      ipv6_rcv+0x397/0x810
[ 1795.234150][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1795.234150][   T73]      process_backlog+0x101/0x620
[ 1795.234150][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1795.234150][   T73]      net_rx_action+0x495/0xbe0
[ 1795.234150][   T73]      __do_softirq+0x1b5/0x7f6
[ 1795.234150][   T73] 
[ 1795.235813][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1795.235813][   T73]      netdev_get_by_index+0x5e/0x80
[ 1795.235813][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1795.235813][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1795.235813][   T73]      ip6_route_add+0x1c/0x140
[ 1795.235813][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1795.235813][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1795.235813][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1795.235813][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1795.235813][   T73]      netlink_rcv_skb+0x130/0x360
[ 1795.235813][   T73]      netlink_unicast+0x449/0x710
[ 1795.235813][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1795.235813][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1795.235813][   T73]      ___sys_sendmsg+0xee/0x170
[ 1795.235813][   T73]      __sys_sendmsg+0xcd/0x170
[ 1795.235813][   T73]      do_syscall_64+0xc6/0x1e0
[ 1795.235813][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1795.235813][   T73] 
[ 1795.237862][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1795.237862][   T73]      netdev_get_by_index+0x5e/0x80
[ 1795.237862][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1795.237862][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1795.237862][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1795.237862][   T73]      ipv6_add_addr+0x411/0x2000
[ 1795.237862][   T73]      inet6_addr_add+0x30e/0xa40
[ 1795.237862][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1795.237862][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1795.237862][   T73]      netlink_rcv_skb+0x130/0x360
[ 1795.237862][   T73]      netlink_unicast+0x449/0x710
[ 1795.237862][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1795.237862][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1795.237862][   T73]      ___sys_sendmsg+0xee/0x170
[ 1795.237862][   T73]      __sys_sendmsg+0xcd/0x170
[ 1795.237862][   T73]      do_syscall_64+0xc6/0x1e0
[ 1795.237862][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1795.237862][   T73] 
[ 1795.239899][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1795.239899][   T73]      netdev_get_by_index+0x5e/0x80
[ 1795.239899][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1795.239899][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1795.239899][   T73]      ip6_route_add+0x1c/0x140
[ 1795.239899][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1795.239899][   T73]      addrconf_add_dev+0xe2/0x170
[ 1795.239899][   T73]      inet6_addr_add+0x12f/0xa40
[ 1795.239899][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1795.239899][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1795.239899][   T73]      netlink_rcv_skb+0x130/0x360
[ 1795.239899][   T73]      netlink_unicast+0x449/0x710
[ 1795.239899][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1795.239899][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1795.239899][   T73]      ___sys_sendmsg+0xee/0x170
[ 1795.239899][   T73]      __sys_sendmsg+0xcd/0x170
[ 1795.239899][   T73]      do_syscall_64+0xc6/0x1e0
[ 1795.239899][   T73] 
[ 1795.241895][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1795.241895][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1795.241895][   T73]      ipv6_find_idev+0x102/0x170
[ 1795.241895][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1795.241895][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1795.241895][   T73]      netlink_rcv_skb+0x130/0x360
[ 1795.241895][   T73]      netlink_unicast+0x449/0x710
[ 1795.241895][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1795.241895][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1795.241895][   T73]      ___sys_sendmsg+0xee/0x170
[ 1795.241895][   T73]      __sys_sendmsg+0xcd/0x170
[ 1795.241895][   T73]      do_syscall_64+0xc6/0x1e0
[ 1795.241895][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1795.241895][   T73] 
[ 1795.243466][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1795.243466][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1795.243466][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1795.243466][   T73]      ipv6_find_idev+0x102/0x170
[ 1795.243466][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1795.243466][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1795.243466][   T73]      netlink_rcv_skb+0x130/0x360
[ 1795.243466][   T73]      netlink_unicast+0x449/0x710
[ 1795.243466][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1795.243466][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1795.243466][   T73]      ___sys_sendmsg+0xee/0x170
[ 1795.243466][   T73]      __sys_sendmsg+0xcd/0x170
[ 1795.243466][   T73]      do_syscall_64+0xc6/0x1e0
[ 1795.243466][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1795.243466][   T73] 
[ 1795.245225][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1795.245521][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1795.245521][   T73]      netdev_get_by_index+0x5e/0x80
[ 1795.245521][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1795.245521][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1795.245521][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1795.245521][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1795.245521][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1795.245521][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1795.245521][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1795.245521][   T73]      addrconf_dad_begin+0x310/0x670
[ 1795.245521][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1795.245521][   T73]      process_one_work+0x84d/0x18a0
[ 1795.245521][   T73]      worker_thread+0x587/0xd30
[ 1795.245521][   T73]      kthread+0x28a/0x350
[ 1795.245521][   T73]      ret_from_fork+0x31/0x70
[ 1795.245521][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1795.245521][   T73] 
[ 1795.247473][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1795.247473][   T73]      netdev_get_by_index+0x5e/0x80
[ 1795.247473][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1795.247473][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1795.247473][   T73]      ip6_route_add+0x1c/0x140
[ 1795.247473][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1795.247473][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1795.247473][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1795.247473][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1795.247473][   T73]      netlink_rcv_skb+0x130/0x360
[ 1795.247473][   T73]      netlink_unicast+0x449/0x710
[ 1795.247473][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1795.247473][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1795.247473][   T73]      ___sys_sendmsg+0xee/0x170
[ 1795.247473][   T73]      __sys_sendmsg+0xcd/0x170
[ 1795.247473][   T73]      do_syscall_64+0xc6/0x1e0
[ 1795.247473][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1795.247473][   T73] 
[ 1795.249495][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1795.249495][   T73]      netdev_get_by_index+0x5e/0x80
[ 1795.249495][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1795.249495][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1795.249495][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1795.249495][   T73]      ipv6_add_addr+0x411/0x2000
[ 1795.249495][   T73]      inet6_addr_add+0x30e/0xa40
[ 1795.249495][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1795.249495][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1795.249495][   T73]      netlink_rcv_skb+0x130/0x360
[ 1795.249495][   T73]      netlink_unicast+0x449/0x710
[ 1795.249495][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1795.249495][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1795.249495][   T73]      ___sys_sendmsg+0xee/0x170
[ 1795.249495][   T73]      __sys_sendmsg+0xcd/0x170
[ 1795.249495][   T73]      do_syscall_64+0xc6/0x1e0
[ 1795.249495][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1795.249495][   T73] 
[ 1795.251519][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1795.251519][   T73]      netdev_get_by_index+0x5e/0x80
[ 1795.251519][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1795.251519][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1795.251519][   T73]      ip6_route_add+0x1c/0x140
[ 1795.251519][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1795.251519][   T73]      addrconf_add_dev+0xe2/0x170
[ 1795.251519][   T73]      inet6_addr_add+0x12f/0xa40
[ 1795.251519][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1795.251519][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1795.251519][   T73]      netlink_rcv_skb+0x130/0x360
[ 1795.251519][   T73]      netlink_unicast+0x449/0x710
[ 1795.251519][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1795.251519][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1795.251519][   T73]      ___sys_sendmsg+0xee/0x170
[ 1795.251519][   T73]      __sys_sendmsg+0xcd/0x170
[ 1795.251519][   T73]      do_syscall_64+0xc6/0x1e0
[ 1795.251519][   T73] 
[ 1795.253512][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1795.253512][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1795.253512][   T73]      ipv6_find_idev+0x102/0x170
[ 1795.253512][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1795.253512][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1795.253512][   T73]      netlink_rcv_skb+0x130/0x360
[ 1795.253512][   T73]      netlink_unicast+0x449/0x710
[ 1795.253512][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1795.253512][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1795.253512][   T73]      ___sys_sendmsg+0xee/0x170
[ 1795.253512][   T73]      __sys_sendmsg+0xcd/0x170
[ 1795.253512][   T73]      do_syscall_64+0xc6/0x1e0
[ 1795.253512][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1795.253512][   T73] 
[ 1795.255067][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1795.255067][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1795.255067][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1795.255067][   T73]      ipv6_find_idev+0x102/0x170
[ 1795.255067][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1795.255067][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1795.255067][   T73]      netlink_rcv_skb+0x130/0x360
[ 1795.255067][   T73]      netlink_unicast+0x449/0x710
[ 1795.255067][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1795.255067][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1795.255067][   T73]      ___sys_sendmsg+0xee/0x170
[ 1795.255067][   T73]      __sys_sendmsg+0xcd/0x170
[ 1795.255067][   T73]      do_syscall_64+0xc6/0x1e0
[ 1795.255067][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1795.255067][   T73] 
[ 1795.256791][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1795.257074][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1795.257074][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1795.257074][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1795.257074][   T73]      fib6_nh_init+0xa22/0x1580
[ 1795.257074][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1795.257074][   T73]      ip6_route_add+0x1c/0x140
[ 1795.257074][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1795.257074][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1795.257074][   T73]      netlink_rcv_skb+0x130/0x360
[ 1795.257074][   T73]      netlink_unicast+0x449/0x710
[ 1795.257074][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1795.257074][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1795.257074][   T73]      ___sys_sendmsg+0xee/0x170
[ 1795.257074][   T73]      __sys_sendmsg+0xcd/0x170
[ 1795.257074][   T73]      do_syscall_64+0xc6/0x1e0
[ 1795.257074][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1795.257074][   T73] 
[ 1795.259117][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1795.259117][   T73]      dst_init+0x84/0x4a0
[ 1795.259117][   T73]      dst_alloc+0x97/0x150
[ 1795.259117][   T73]      ip6_dst_alloc+0x23/0x90
[ 1795.259117][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1795.259117][   T73]      ip6_pol_route+0x56f/0x840
[ 1795.259117][   T73]      fib6_rule_lookup+0x456/0x630
[ 1795.259117][   T73]      ip6_route_input+0x59c/0xa50
[ 1795.259117][   T73]      ipv6_rcv+0x397/0x810
[ 1795.259117][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1795.259117][   T73]      process_backlog+0x101/0x620
[ 1795.259117][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1795.259117][   T73]      net_rx_action+0x495/0xbe0
[ 1795.259117][   T73]      __do_softirq+0x1b5/0x7f6
[ 1795.259117][   T73] 
[ 1795.260906][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1795.260906][   T73]      netdev_get_by_index+0x5e/0x80
[ 1795.260906][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1795.260906][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1795.260906][   T73]      ip6_route_add+0x1c/0x140
[ 1795.260906][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1795.260906][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1795.260906][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1795.260906][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1795.260906][   T73]      netlink_rcv_skb+0x130/0x360
[ 1795.260906][   T73]      netlink_unicast+0x449/0x710
[ 1795.260906][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1795.260906][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1795.260906][   T73]      ___sys_sendmsg+0xee/0x170
[ 1795.260906][   T73]      __sys_sendmsg+0xcd/0x170
[ 1795.260906][   T73]      do_syscall_64+0xc6/0x1e0
[ 1795.260906][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1795.260906][   T73] 
[ 1795.263072][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1795.263072][   T73]      netdev_get_by_index+0x5e/0x80
[ 1795.263072][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1795.263072][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1795.263072][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1795.263072][   T73]      ipv6_add_addr+0x411/0x2000
[ 1795.263072][   T73]      inet6_addr_add+0x30e/0xa40
[ 1795.263072][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1795.263072][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1795.263072][   T73]      netlink_rcv_skb+0x130/0x360
[ 1795.263072][   T73]      netlink_unicast+0x449/0x710
[ 1795.263072][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1795.263072][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1795.263072][   T73]      ___sys_sendmsg+0xee/0x170
[ 1795.263072][   T73]      __sys_sendmsg+0xcd/0x170
[ 1795.263072][   T73]      do_syscall_64+0xc6/0x1e0
[ 1795.263072][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1795.263072][   T73] 
[ 1795.265224][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1795.265224][   T73]      netdev_get_by_index+0x5e/0x80
[ 1795.265224][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1795.265224][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1795.265224][   T73]      ip6_route_add+0x1c/0x140
[ 1795.265224][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1795.265224][   T73]      addrconf_add_dev+0xe2/0x170
[ 1795.265224][   T73]      inet6_addr_add+0x12f/0xa40
[ 1795.265224][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1795.265224][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1795.265224][   T73]      netlink_rcv_skb+0x130/0x360
[ 1795.265224][   T73]      netlink_unicast+0x449/0x710
[ 1795.265224][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1795.265224][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1795.265224][   T73]      ___sys_sendmsg+0xee/0x170
[ 1795.265224][   T73]      __sys_sendmsg+0xcd/0x170
[ 1795.265224][   T73]      do_syscall_64+0xc6/0x1e0
[ 1795.265224][   T73] 
[ 1795.267341][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1795.267341][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1795.267341][   T73]      ipv6_find_idev+0x102/0x170
[ 1795.267341][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1795.267341][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1795.267341][   T73]      netlink_rcv_skb+0x130/0x360
[ 1795.267341][   T73]      netlink_unicast+0x449/0x710
[ 1795.267341][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1795.267341][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1795.267341][   T73]      ___sys_sendmsg+0xee/0x170
[ 1795.267341][   T73]      __sys_sendmsg+0xcd/0x170
[ 1795.267341][   T73]      do_syscall_64+0xc6/0x1e0
[ 1795.267341][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1795.267341][   T73] 
[ 1795.269022][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1795.269022][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1795.269022][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1795.269022][   T73]      ipv6_find_idev+0x102/0x170
[ 1795.269022][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1795.269022][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1795.269022][   T73]      netlink_rcv_skb+0x130/0x360
[ 1795.269022][   T73]      netlink_unicast+0x449/0x710
[ 1795.269022][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1795.269022][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1795.269022][   T73]      ___sys_sendmsg+0xee/0x170
[ 1795.269022][   T73]      __sys_sendmsg+0xcd/0x170
[ 1795.269022][   T73]      do_syscall_64+0xc6/0x1e0
[ 1795.269022][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1795.269022][   T73] 
[ 1795.270871][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1795.271150][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1795.271150][   T73]      netdev_get_by_index+0x5e/0x80
[ 1795.271150][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1795.271150][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1795.271150][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1795.271150][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1795.271150][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1795.271150][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1795.271150][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1795.271150][   T73]      addrconf_dad_begin+0x310/0x670
[ 1795.271150][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1795.271150][   T73]      process_one_work+0x84d/0x18a0
[ 1795.271150][   T73]      worker_thread+0x587/0xd30
[ 1795.271150][   T73]      kthread+0x28a/0x350
[ 1795.271150][   T73]      ret_from_fork+0x31/0x70
[ 1795.271150][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1795.271150][   T73] 
[ 1795.273210][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1795.273210][   T73]      netdev_get_by_index+0x5e/0x80
[ 1795.273210][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1795.273210][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1795.273210][   T73]      ip6_route_add+0x1c/0x140
[ 1795.273210][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1795.273210][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1795.273210][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1795.273210][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1795.273210][   T73]      netlink_rcv_skb+0x130/0x360
[ 1795.273210][   T73]      netlink_unicast+0x449/0x710
[ 1795.273210][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1795.273210][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1795.273210][   T73]      ___sys_sendmsg+0xee/0x170
[ 1795.273210][   T73]      __sys_sendmsg+0xcd/0x170
[ 1795.273210][   T73]      do_syscall_64+0xc6/0x1e0
[ 1795.273210][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1795.273210][   T73] 
[ 1795.275406][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1795.275406][   T73]      netdev_get_by_index+0x5e/0x80
[ 1795.275406][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1795.275406][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1795.275406][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1795.275406][   T73]      ipv6_add_addr+0x411/0x2000
[ 1795.275406][   T73]      inet6_addr_add+0x30e/0xa40
[ 1795.275406][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1795.275406][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1795.275406][   T73]      netlink_rcv_skb+0x130/0x360
[ 1795.275406][   T73]      netlink_unicast+0x449/0x710
[ 1795.275406][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1795.275406][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1795.275406][   T73]      ___sys_sendmsg+0xee/0x170
[ 1795.275406][   T73]      __sys_sendmsg+0xcd/0x170
[ 1795.275406][   T73]      do_syscall_64+0xc6/0x1e0
[ 1795.275406][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1795.275406][   T73] 
[ 1795.277494][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1795.277494][   T73]      netdev_get_by_index+0x5e/0x80
[ 1795.277494][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1795.277494][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1795.277494][   T73]      ip6_route_add+0x1c/0x140
[ 1795.277494][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1795.277494][   T73]      addrconf_add_dev+0xe2/0x170
[ 1795.277494][   T73]      inet6_addr_add+0x12f/0xa40
[ 1795.277494][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1795.277494][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1795.277494][   T73]      netlink_rcv_skb+0x130/0x360
[ 1795.277494][   T73]      netlink_unicast+0x449/0x710
[ 1795.277494][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1795.277494][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1795.277494][   T73]      ___sys_sendmsg+0xee/0x170
[ 1795.277494][   T73]      __sys_sendmsg+0xcd/0x170
[ 1795.277494][   T73]      do_syscall_64+0xc6/0x1e0
[ 1795.277494][   T73] 
[ 1795.279648][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1795.279648][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1795.279648][   T73]      ipv6_find_idev+0x102/0x170
[ 1795.279648][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1795.279648][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1795.279648][   T73]      netlink_rcv_skb+0x130/0x360
[ 1795.279648][   T73]      netlink_unicast+0x449/0x710
[ 1795.279648][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1795.279648][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1795.279648][   T73]      ___sys_sendmsg+0xee/0x170
[ 1795.279648][   T73]      __sys_sendmsg+0xcd/0x170
[ 1795.279648][   T73]      do_syscall_64+0xc6/0x1e0
[ 1795.279648][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1795.279648][   T73] 
[ 1795.281334][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1795.281334][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1795.281334][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1795.281334][   T73]      ipv6_find_idev+0x102/0x170
[ 1795.281334][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1795.281334][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1795.281334][   T73]      netlink_rcv_skb+0x130/0x360
[ 1795.281334][   T73]      netlink_unicast+0x449/0x710
[ 1795.281334][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1795.281334][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1795.281334][   T73]      ___sys_sendmsg+0xee/0x170
[ 1795.281334][   T73]      __sys_sendmsg+0xcd/0x170
[ 1795.281334][   T73]      do_syscall_64+0xc6/0x1e0
[ 1795.281334][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1795.281334][   T73] 
[ 1805.519840][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1805.520247][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1805.520247][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1805.520247][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1805.520247][   T73]      fib6_nh_init+0xa22/0x1580
[ 1805.520247][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1805.520247][   T73]      ip6_route_add+0x1c/0x140
[ 1805.520247][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1805.520247][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1805.520247][   T73]      netlink_rcv_skb+0x130/0x360
[ 1805.520247][   T73]      netlink_unicast+0x449/0x710
[ 1805.520247][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1805.520247][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1805.520247][   T73]      ___sys_sendmsg+0xee/0x170
[ 1805.520247][   T73]      __sys_sendmsg+0xcd/0x170
[ 1805.520247][   T73]      do_syscall_64+0xc6/0x1e0
[ 1805.520247][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1805.520247][   T73] 
[ 1805.522171][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1805.522171][   T73]      dst_init+0x84/0x4a0
[ 1805.522171][   T73]      dst_alloc+0x97/0x150
[ 1805.522171][   T73]      ip6_dst_alloc+0x23/0x90
[ 1805.522171][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1805.522171][   T73]      ip6_pol_route+0x56f/0x840
[ 1805.522171][   T73]      fib6_rule_lookup+0x456/0x630
[ 1805.522171][   T73]      ip6_route_input+0x59c/0xa50
[ 1805.522171][   T73]      ipv6_rcv+0x397/0x810
[ 1805.522171][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1805.522171][   T73]      process_backlog+0x101/0x620
[ 1805.522171][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1805.522171][   T73]      net_rx_action+0x495/0xbe0
[ 1805.522171][   T73]      __do_softirq+0x1b5/0x7f6
[ 1805.522171][   T73] 
[ 1805.523829][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1805.523829][   T73]      netdev_get_by_index+0x5e/0x80
[ 1805.523829][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1805.523829][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1805.523829][   T73]      ip6_route_add+0x1c/0x140
[ 1805.523829][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1805.523829][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1805.523829][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1805.523829][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1805.523829][   T73]      netlink_rcv_skb+0x130/0x360
[ 1805.523829][   T73]      netlink_unicast+0x449/0x710
[ 1805.523829][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1805.523829][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1805.523829][   T73]      ___sys_sendmsg+0xee/0x170
[ 1805.523829][   T73]      __sys_sendmsg+0xcd/0x170
[ 1805.523829][   T73]      do_syscall_64+0xc6/0x1e0
[ 1805.523829][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1805.523829][   T73] 
[ 1805.525910][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1805.525910][   T73]      netdev_get_by_index+0x5e/0x80
[ 1805.525910][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1805.525910][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1805.525910][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1805.525910][   T73]      ipv6_add_addr+0x411/0x2000
[ 1805.525910][   T73]      inet6_addr_add+0x30e/0xa40
[ 1805.525910][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1805.525910][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1805.525910][   T73]      netlink_rcv_skb+0x130/0x360
[ 1805.525910][   T73]      netlink_unicast+0x449/0x710
[ 1805.525910][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1805.525910][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1805.525910][   T73]      ___sys_sendmsg+0xee/0x170
[ 1805.525910][   T73]      __sys_sendmsg+0xcd/0x170
[ 1805.525910][   T73]      do_syscall_64+0xc6/0x1e0
[ 1805.525910][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1805.525910][   T73] 
[ 1805.527936][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1805.527936][   T73]      netdev_get_by_index+0x5e/0x80
[ 1805.527936][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1805.527936][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1805.527936][   T73]      ip6_route_add+0x1c/0x140
[ 1805.527936][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1805.527936][   T73]      addrconf_add_dev+0xe2/0x170
[ 1805.527936][   T73]      inet6_addr_add+0x12f/0xa40
[ 1805.527936][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1805.527936][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1805.527936][   T73]      netlink_rcv_skb+0x130/0x360
[ 1805.527936][   T73]      netlink_unicast+0x449/0x710
[ 1805.527936][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1805.527936][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1805.527936][   T73]      ___sys_sendmsg+0xee/0x170
[ 1805.527936][   T73]      __sys_sendmsg+0xcd/0x170
[ 1805.527936][   T73]      do_syscall_64+0xc6/0x1e0
[ 1805.527936][   T73] 
[ 1805.529918][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1805.529918][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1805.529918][   T73]      ipv6_find_idev+0x102/0x170
[ 1805.529918][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1805.529918][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1805.529918][   T73]      netlink_rcv_skb+0x130/0x360
[ 1805.529918][   T73]      netlink_unicast+0x449/0x710
[ 1805.529918][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1805.529918][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1805.529918][   T73]      ___sys_sendmsg+0xee/0x170
[ 1805.529918][   T73]      __sys_sendmsg+0xcd/0x170
[ 1805.529918][   T73]      do_syscall_64+0xc6/0x1e0
[ 1805.529918][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1805.529918][   T73] 
[ 1805.531465][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1805.531465][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1805.531465][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1805.531465][   T73]      ipv6_find_idev+0x102/0x170
[ 1805.531465][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1805.531465][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1805.531465][   T73]      netlink_rcv_skb+0x130/0x360
[ 1805.531465][   T73]      netlink_unicast+0x449/0x710
[ 1805.531465][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1805.531465][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1805.531465][   T73]      ___sys_sendmsg+0xee/0x170
[ 1805.531465][   T73]      __sys_sendmsg+0xcd/0x170
[ 1805.531465][   T73]      do_syscall_64+0xc6/0x1e0
[ 1805.531465][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1805.531465][   T73] 
[ 1805.533182][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1805.533464][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1805.533464][   T73]      netdev_get_by_index+0x5e/0x80
[ 1805.533464][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1805.533464][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1805.533464][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1805.533464][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1805.533464][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1805.533464][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1805.533464][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1805.533464][   T73]      addrconf_dad_begin+0x310/0x670
[ 1805.533464][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1805.533464][   T73]      process_one_work+0x84d/0x18a0
[ 1805.533464][   T73]      worker_thread+0x587/0xd30
[ 1805.533464][   T73]      kthread+0x28a/0x350
[ 1805.533464][   T73]      ret_from_fork+0x31/0x70
[ 1805.533464][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1805.533464][   T73] 
[ 1805.535396][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1805.535396][   T73]      netdev_get_by_index+0x5e/0x80
[ 1805.535396][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1805.535396][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1805.535396][   T73]      ip6_route_add+0x1c/0x140
[ 1805.535396][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1805.535396][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1805.535396][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1805.535396][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1805.535396][   T73]      netlink_rcv_skb+0x130/0x360
[ 1805.535396][   T73]      netlink_unicast+0x449/0x710
[ 1805.535396][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1805.535396][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1805.535396][   T73]      ___sys_sendmsg+0xee/0x170
[ 1805.535396][   T73]      __sys_sendmsg+0xcd/0x170
[ 1805.535396][   T73]      do_syscall_64+0xc6/0x1e0
[ 1805.535396][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1805.535396][   T73] 
[ 1805.537445][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1805.537445][   T73]      netdev_get_by_index+0x5e/0x80
[ 1805.537445][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1805.537445][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1805.537445][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1805.537445][   T73]      ipv6_add_addr+0x411/0x2000
[ 1805.537445][   T73]      inet6_addr_add+0x30e/0xa40
[ 1805.537445][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1805.537445][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1805.537445][   T73]      netlink_rcv_skb+0x130/0x360
[ 1805.537445][   T73]      netlink_unicast+0x449/0x710
[ 1805.537445][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1805.537445][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1805.537445][   T73]      ___sys_sendmsg+0xee/0x170
[ 1805.537445][   T73]      __sys_sendmsg+0xcd/0x170
[ 1805.537445][   T73]      do_syscall_64+0xc6/0x1e0
[ 1805.537445][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1805.537445][   T73] 
[ 1805.539457][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1805.539457][   T73]      netdev_get_by_index+0x5e/0x80
[ 1805.539457][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1805.539457][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1805.539457][   T73]      ip6_route_add+0x1c/0x140
[ 1805.539457][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1805.539457][   T73]      addrconf_add_dev+0xe2/0x170
[ 1805.539457][   T73]      inet6_addr_add+0x12f/0xa40
[ 1805.539457][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1805.539457][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1805.539457][   T73]      netlink_rcv_skb+0x130/0x360
[ 1805.539457][   T73]      netlink_unicast+0x449/0x710
[ 1805.539457][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1805.539457][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1805.539457][   T73]      ___sys_sendmsg+0xee/0x170
[ 1805.539457][   T73]      __sys_sendmsg+0xcd/0x170
[ 1805.539457][   T73]      do_syscall_64+0xc6/0x1e0
[ 1805.539457][   T73] 
[ 1805.541440][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1805.541440][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1805.541440][   T73]      ipv6_find_idev+0x102/0x170
[ 1805.541440][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1805.541440][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1805.541440][   T73]      netlink_rcv_skb+0x130/0x360
[ 1805.541440][   T73]      netlink_unicast+0x449/0x710
[ 1805.541440][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1805.541440][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1805.541440][   T73]      ___sys_sendmsg+0xee/0x170
[ 1805.541440][   T73]      __sys_sendmsg+0xcd/0x170
[ 1805.541440][   T73]      do_syscall_64+0xc6/0x1e0
[ 1805.541440][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1805.541440][   T73] 
[ 1805.542988][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1805.542988][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1805.542988][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1805.542988][   T73]      ipv6_find_idev+0x102/0x170
[ 1805.542988][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1805.542988][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1805.542988][   T73]      netlink_rcv_skb+0x130/0x360
[ 1805.542988][   T73]      netlink_unicast+0x449/0x710
[ 1805.542988][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1805.542988][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1805.542988][   T73]      ___sys_sendmsg+0xee/0x170
[ 1805.542988][   T73]      __sys_sendmsg+0xcd/0x170
[ 1805.542988][   T73]      do_syscall_64+0xc6/0x1e0
[ 1805.542988][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1805.542988][   T73] 
[ 1805.544705][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1805.544988][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1805.544988][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1805.544988][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1805.544988][   T73]      fib6_nh_init+0xa22/0x1580
[ 1805.544988][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1805.544988][   T73]      ip6_route_add+0x1c/0x140
[ 1805.544988][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1805.544988][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1805.544988][   T73]      netlink_rcv_skb+0x130/0x360
[ 1805.544988][   T73]      netlink_unicast+0x449/0x710
[ 1805.544988][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1805.544988][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1805.544988][   T73]      ___sys_sendmsg+0xee/0x170
[ 1805.544988][   T73]      __sys_sendmsg+0xcd/0x170
[ 1805.544988][   T73]      do_syscall_64+0xc6/0x1e0
[ 1805.544988][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1805.544988][   T73] 
[ 1805.547071][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1805.547071][   T73]      dst_init+0x84/0x4a0
[ 1805.547071][   T73]      dst_alloc+0x97/0x150
[ 1805.547071][   T73]      ip6_dst_alloc+0x23/0x90
[ 1805.547071][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1805.547071][   T73]      ip6_pol_route+0x56f/0x840
[ 1805.547071][   T73]      fib6_rule_lookup+0x456/0x630
[ 1805.547071][   T73]      ip6_route_input+0x59c/0xa50
[ 1805.547071][   T73]      ipv6_rcv+0x397/0x810
[ 1805.547071][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1805.547071][   T73]      process_backlog+0x101/0x620
[ 1805.547071][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1805.547071][   T73]      net_rx_action+0x495/0xbe0
[ 1805.547071][   T73]      __do_softirq+0x1b5/0x7f6
[ 1805.547071][   T73] 
[ 1805.548903][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1805.548903][   T73]      netdev_get_by_index+0x5e/0x80
[ 1805.548903][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1805.548903][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1805.548903][   T73]      ip6_route_add+0x1c/0x140
[ 1805.548903][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1805.548903][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1805.548903][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1805.548903][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1805.548903][   T73]      netlink_rcv_skb+0x130/0x360
[ 1805.548903][   T73]      netlink_unicast+0x449/0x710
[ 1805.548903][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1805.548903][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1805.548903][   T73]      ___sys_sendmsg+0xee/0x170
[ 1805.548903][   T73]      __sys_sendmsg+0xcd/0x170
[ 1805.548903][   T73]      do_syscall_64+0xc6/0x1e0
[ 1805.548903][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1805.548903][   T73] 
[ 1805.551169][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1805.551169][   T73]      netdev_get_by_index+0x5e/0x80
[ 1805.551169][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1805.551169][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1805.551169][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1805.551169][   T73]      ipv6_add_addr+0x411/0x2000
[ 1805.551169][   T73]      inet6_addr_add+0x30e/0xa40
[ 1805.551169][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1805.551169][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1805.551169][   T73]      netlink_rcv_skb+0x130/0x360
[ 1805.551169][   T73]      netlink_unicast+0x449/0x710
[ 1805.551169][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1805.551169][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1805.551169][   T73]      ___sys_sendmsg+0xee/0x170
[ 1805.551169][   T73]      __sys_sendmsg+0xcd/0x170
[ 1805.551169][   T73]      do_syscall_64+0xc6/0x1e0
[ 1805.551169][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1805.551169][   T73] 
[ 1805.553491][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1805.553491][   T73]      netdev_get_by_index+0x5e/0x80
[ 1805.553491][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1805.553491][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1805.553491][   T73]      ip6_route_add+0x1c/0x140
[ 1805.553491][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1805.553491][   T73]      addrconf_add_dev+0xe2/0x170
[ 1805.553491][   T73]      inet6_addr_add+0x12f/0xa40
[ 1805.553491][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1805.553491][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1805.553491][   T73]      netlink_rcv_skb+0x130/0x360
[ 1805.553491][   T73]      netlink_unicast+0x449/0x710
[ 1805.553491][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1805.553491][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1805.553491][   T73]      ___sys_sendmsg+0xee/0x170
[ 1805.553491][   T73]      __sys_sendmsg+0xcd/0x170
[ 1805.553491][   T73]      do_syscall_64+0xc6/0x1e0
[ 1805.553491][   T73] 
[ 1805.555716][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1805.555716][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1805.555716][   T73]      ipv6_find_idev+0x102/0x170
[ 1805.555716][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1805.555716][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1805.555716][   T73]      netlink_rcv_skb+0x130/0x360
[ 1805.555716][   T73]      netlink_unicast+0x449/0x710
[ 1805.555716][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1805.555716][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1805.555716][   T73]      ___sys_sendmsg+0xee/0x170
[ 1805.555716][   T73]      __sys_sendmsg+0xcd/0x170
[ 1805.555716][   T73]      do_syscall_64+0xc6/0x1e0
[ 1805.555716][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1805.555716][   T73] 
[ 1805.557396][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1805.557396][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1805.557396][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1805.557396][   T73]      ipv6_find_idev+0x102/0x170
[ 1805.557396][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1805.557396][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1805.557396][   T73]      netlink_rcv_skb+0x130/0x360
[ 1805.557396][   T73]      netlink_unicast+0x449/0x710
[ 1805.557396][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1805.557396][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1805.557396][   T73]      ___sys_sendmsg+0xee/0x170
[ 1805.557396][   T73]      __sys_sendmsg+0xcd/0x170
[ 1805.557396][   T73]      do_syscall_64+0xc6/0x1e0
[ 1805.557396][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1805.557396][   T73] 
[ 1805.559356][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1805.559634][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1805.559634][   T73]      netdev_get_by_index+0x5e/0x80
[ 1805.559634][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1805.559634][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1805.559634][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1805.559634][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1805.559634][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1805.559634][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1805.559634][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1805.559634][   T73]      addrconf_dad_begin+0x310/0x670
[ 1805.559634][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1805.559634][   T73]      process_one_work+0x84d/0x18a0
[ 1805.559634][   T73]      worker_thread+0x587/0xd30
[ 1805.559634][   T73]      kthread+0x28a/0x350
[ 1805.559634][   T73]      ret_from_fork+0x31/0x70
[ 1805.559634][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1805.559634][   T73] 
[ 1805.561866][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1805.561866][   T73]      netdev_get_by_index+0x5e/0x80
[ 1805.561866][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1805.561866][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1805.561866][   T73]      ip6_route_add+0x1c/0x140
[ 1805.561866][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1805.561866][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1805.561866][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1805.561866][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1805.561866][   T73]      netlink_rcv_skb+0x130/0x360
[ 1805.561866][   T73]      netlink_unicast+0x449/0x710
[ 1805.561866][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1805.561866][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1805.561866][   T73]      ___sys_sendmsg+0xee/0x170
[ 1805.561866][   T73]      __sys_sendmsg+0xcd/0x170
[ 1805.561866][   T73]      do_syscall_64+0xc6/0x1e0
[ 1805.561866][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1805.561866][   T73] 
[ 1805.564116][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1805.564116][   T73]      netdev_get_by_index+0x5e/0x80
[ 1805.564116][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1805.564116][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1805.564116][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1805.564116][   T73]      ipv6_add_addr+0x411/0x2000
[ 1805.564116][   T73]      inet6_addr_add+0x30e/0xa40
[ 1805.564116][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1805.564116][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1805.564116][   T73]      netlink_rcv_skb+0x130/0x360
[ 1805.564116][   T73]      netlink_unicast+0x449/0x710
[ 1805.564116][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1805.564116][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1805.564116][   T73]      ___sys_sendmsg+0xee/0x170
[ 1805.564116][   T73]      __sys_sendmsg+0xcd/0x170
[ 1805.564116][   T73]      do_syscall_64+0xc6/0x1e0
[ 1805.564116][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1805.564116][   T73] 
[ 1805.566318][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1805.566318][   T73]      netdev_get_by_index+0x5e/0x80
[ 1805.566318][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1805.566318][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1805.566318][   T73]      ip6_route_add+0x1c/0x140
[ 1805.566318][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1805.566318][   T73]      addrconf_add_dev+0xe2/0x170
[ 1805.566318][   T73]      inet6_addr_add+0x12f/0xa40
[ 1805.566318][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1805.566318][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1805.566318][   T73]      netlink_rcv_skb+0x130/0x360
[ 1805.566318][   T73]      netlink_unicast+0x449/0x710
[ 1805.566318][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1805.566318][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1805.566318][   T73]      ___sys_sendmsg+0xee/0x170
[ 1805.566318][   T73]      __sys_sendmsg+0xcd/0x170
[ 1805.566318][   T73]      do_syscall_64+0xc6/0x1e0
[ 1805.566318][   T73] 
[ 1805.568563][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1805.568563][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1805.568563][   T73]      ipv6_find_idev+0x102/0x170
[ 1805.568563][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1805.568563][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1805.568563][   T73]      netlink_rcv_skb+0x130/0x360
[ 1805.568563][   T73]      netlink_unicast+0x449/0x710
[ 1805.568563][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1805.568563][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1805.568563][   T73]      ___sys_sendmsg+0xee/0x170
[ 1805.568563][   T73]      __sys_sendmsg+0xcd/0x170
[ 1805.568563][   T73]      do_syscall_64+0xc6/0x1e0
[ 1805.568563][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1805.568563][   T73] 
[ 1805.570349][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1805.570349][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1805.570349][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1805.570349][   T73]      ipv6_find_idev+0x102/0x170
[ 1805.570349][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1805.570349][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1805.570349][   T73]      netlink_rcv_skb+0x130/0x360
[ 1805.570349][   T73]      netlink_unicast+0x449/0x710
[ 1805.570349][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1805.570349][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1805.570349][   T73]      ___sys_sendmsg+0xee/0x170
[ 1805.570349][   T73]      __sys_sendmsg+0xcd/0x170
[ 1805.570349][   T73]      do_syscall_64+0xc6/0x1e0
[ 1805.570349][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1805.570349][   T73] 
[ 1815.815778][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1815.816246][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1815.816246][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1815.816246][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1815.816246][   T73]      fib6_nh_init+0xa22/0x1580
[ 1815.816246][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1815.816246][   T73]      ip6_route_add+0x1c/0x140
[ 1815.816246][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1815.816246][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1815.816246][   T73]      netlink_rcv_skb+0x130/0x360
[ 1815.816246][   T73]      netlink_unicast+0x449/0x710
[ 1815.816246][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1815.816246][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1815.816246][   T73]      ___sys_sendmsg+0xee/0x170
[ 1815.816246][   T73]      __sys_sendmsg+0xcd/0x170
[ 1815.816246][   T73]      do_syscall_64+0xc6/0x1e0
[ 1815.816246][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1815.816246][   T73] 
[ 1815.818173][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1815.818173][   T73]      dst_init+0x84/0x4a0
[ 1815.818173][   T73]      dst_alloc+0x97/0x150
[ 1815.818173][   T73]      ip6_dst_alloc+0x23/0x90
[ 1815.818173][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1815.818173][   T73]      ip6_pol_route+0x56f/0x840
[ 1815.818173][   T73]      fib6_rule_lookup+0x456/0x630
[ 1815.818173][   T73]      ip6_route_input+0x59c/0xa50
[ 1815.818173][   T73]      ipv6_rcv+0x397/0x810
[ 1815.818173][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1815.818173][   T73]      process_backlog+0x101/0x620
[ 1815.818173][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1815.818173][   T73]      net_rx_action+0x495/0xbe0
[ 1815.818173][   T73]      __do_softirq+0x1b5/0x7f6
[ 1815.818173][   T73] 
[ 1815.819830][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1815.819830][   T73]      netdev_get_by_index+0x5e/0x80
[ 1815.819830][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1815.819830][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1815.819830][   T73]      ip6_route_add+0x1c/0x140
[ 1815.819830][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1815.819830][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1815.819830][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1815.819830][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1815.819830][   T73]      netlink_rcv_skb+0x130/0x360
[ 1815.819830][   T73]      netlink_unicast+0x449/0x710
[ 1815.819830][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1815.819830][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1815.819830][   T73]      ___sys_sendmsg+0xee/0x170
[ 1815.819830][   T73]      __sys_sendmsg+0xcd/0x170
[ 1815.819830][   T73]      do_syscall_64+0xc6/0x1e0
[ 1815.819830][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1815.819830][   T73] 
[ 1815.821854][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1815.821854][   T73]      netdev_get_by_index+0x5e/0x80
[ 1815.821854][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1815.821854][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1815.821854][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1815.821854][   T73]      ipv6_add_addr+0x411/0x2000
[ 1815.821854][   T73]      inet6_addr_add+0x30e/0xa40
[ 1815.821854][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1815.821854][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1815.821854][   T73]      netlink_rcv_skb+0x130/0x360
[ 1815.821854][   T73]      netlink_unicast+0x449/0x710
[ 1815.821854][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1815.821854][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1815.821854][   T73]      ___sys_sendmsg+0xee/0x170
[ 1815.821854][   T73]      __sys_sendmsg+0xcd/0x170
[ 1815.821854][   T73]      do_syscall_64+0xc6/0x1e0
[ 1815.821854][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1815.821854][   T73] 
[ 1815.823865][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1815.823865][   T73]      netdev_get_by_index+0x5e/0x80
[ 1815.823865][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1815.823865][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1815.823865][   T73]      ip6_route_add+0x1c/0x140
[ 1815.823865][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1815.823865][   T73]      addrconf_add_dev+0xe2/0x170
[ 1815.823865][   T73]      inet6_addr_add+0x12f/0xa40
[ 1815.823865][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1815.823865][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1815.823865][   T73]      netlink_rcv_skb+0x130/0x360
[ 1815.823865][   T73]      netlink_unicast+0x449/0x710
[ 1815.823865][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1815.823865][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1815.823865][   T73]      ___sys_sendmsg+0xee/0x170
[ 1815.823865][   T73]      __sys_sendmsg+0xcd/0x170
[ 1815.823865][   T73]      do_syscall_64+0xc6/0x1e0
[ 1815.823865][   T73] 
[ 1815.825846][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1815.825846][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1815.825846][   T73]      ipv6_find_idev+0x102/0x170
[ 1815.825846][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1815.825846][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1815.825846][   T73]      netlink_rcv_skb+0x130/0x360
[ 1815.825846][   T73]      netlink_unicast+0x449/0x710
[ 1815.825846][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1815.825846][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1815.825846][   T73]      ___sys_sendmsg+0xee/0x170
[ 1815.825846][   T73]      __sys_sendmsg+0xcd/0x170
[ 1815.825846][   T73]      do_syscall_64+0xc6/0x1e0
[ 1815.825846][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1815.825846][   T73] 
[ 1815.827403][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1815.827403][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1815.827403][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1815.827403][   T73]      ipv6_find_idev+0x102/0x170
[ 1815.827403][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1815.827403][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1815.827403][   T73]      netlink_rcv_skb+0x130/0x360
[ 1815.827403][   T73]      netlink_unicast+0x449/0x710
[ 1815.827403][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1815.827403][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1815.827403][   T73]      ___sys_sendmsg+0xee/0x170
[ 1815.827403][   T73]      __sys_sendmsg+0xcd/0x170
[ 1815.827403][   T73]      do_syscall_64+0xc6/0x1e0
[ 1815.827403][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1815.827403][   T73] 
[ 1815.829123][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1815.829532][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1815.829532][   T73]      netdev_get_by_index+0x5e/0x80
[ 1815.829532][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1815.829532][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1815.829532][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1815.829532][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1815.829532][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1815.829532][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1815.829532][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1815.829532][   T73]      addrconf_dad_begin+0x310/0x670
[ 1815.829532][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1815.829532][   T73]      process_one_work+0x84d/0x18a0
[ 1815.829532][   T73]      worker_thread+0x587/0xd30
[ 1815.829532][   T73]      kthread+0x28a/0x350
[ 1815.829532][   T73]      ret_from_fork+0x31/0x70
[ 1815.829532][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1815.829532][   T73] 
[ 1815.832286][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1815.832286][   T73]      netdev_get_by_index+0x5e/0x80
[ 1815.832286][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1815.832286][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1815.832286][   T73]      ip6_route_add+0x1c/0x140
[ 1815.832286][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1815.832286][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1815.832286][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1815.832286][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1815.832286][   T73]      netlink_rcv_skb+0x130/0x360
[ 1815.832286][   T73]      netlink_unicast+0x449/0x710
[ 1815.832286][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1815.832286][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1815.832286][   T73]      ___sys_sendmsg+0xee/0x170
[ 1815.832286][   T73]      __sys_sendmsg+0xcd/0x170
[ 1815.832286][   T73]      do_syscall_64+0xc6/0x1e0
[ 1815.832286][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1815.832286][   T73] 
[ 1815.835363][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1815.835363][   T73]      netdev_get_by_index+0x5e/0x80
[ 1815.835363][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1815.835363][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1815.835363][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1815.835363][   T73]      ipv6_add_addr+0x411/0x2000
[ 1815.835363][   T73]      inet6_addr_add+0x30e/0xa40
[ 1815.835363][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1815.835363][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1815.835363][   T73]      netlink_rcv_skb+0x130/0x360
[ 1815.835363][   T73]      netlink_unicast+0x449/0x710
[ 1815.835363][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1815.835363][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1815.835363][   T73]      ___sys_sendmsg+0xee/0x170
[ 1815.835363][   T73]      __sys_sendmsg+0xcd/0x170
[ 1815.835363][   T73]      do_syscall_64+0xc6/0x1e0
[ 1815.835363][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1815.835363][   T73] 
[ 1815.838406][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1815.838406][   T73]      netdev_get_by_index+0x5e/0x80
[ 1815.838406][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1815.838406][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1815.838406][   T73]      ip6_route_add+0x1c/0x140
[ 1815.838406][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1815.838406][   T73]      addrconf_add_dev+0xe2/0x170
[ 1815.838406][   T73]      inet6_addr_add+0x12f/0xa40
[ 1815.838406][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1815.838406][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1815.838406][   T73]      netlink_rcv_skb+0x130/0x360
[ 1815.838406][   T73]      netlink_unicast+0x449/0x710
[ 1815.838406][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1815.838406][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1815.838406][   T73]      ___sys_sendmsg+0xee/0x170
[ 1815.838406][   T73]      __sys_sendmsg+0xcd/0x170
[ 1815.838406][   T73]      do_syscall_64+0xc6/0x1e0
[ 1815.838406][   T73] 
[ 1815.841559][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1815.841559][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1815.841559][   T73]      ipv6_find_idev+0x102/0x170
[ 1815.841559][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1815.841559][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1815.841559][   T73]      netlink_rcv_skb+0x130/0x360
[ 1815.841559][   T73]      netlink_unicast+0x449/0x710
[ 1815.841559][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1815.841559][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1815.841559][   T73]      ___sys_sendmsg+0xee/0x170
[ 1815.841559][   T73]      __sys_sendmsg+0xcd/0x170
[ 1815.841559][   T73]      do_syscall_64+0xc6/0x1e0
[ 1815.841559][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1815.841559][   T73] 
[ 1815.843920][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1815.843920][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1815.843920][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1815.843920][   T73]      ipv6_find_idev+0x102/0x170
[ 1815.843920][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1815.843920][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1815.843920][   T73]      netlink_rcv_skb+0x130/0x360
[ 1815.843920][   T73]      netlink_unicast+0x449/0x710
[ 1815.843920][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1815.843920][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1815.843920][   T73]      ___sys_sendmsg+0xee/0x170
[ 1815.843920][   T73]      __sys_sendmsg+0xcd/0x170
[ 1815.843920][   T73]      do_syscall_64+0xc6/0x1e0
[ 1815.843920][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1815.843920][   T73] 
[ 1815.846489][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1815.846899][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1815.846899][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1815.846899][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1815.846899][   T73]      fib6_nh_init+0xa22/0x1580
[ 1815.846899][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1815.846899][   T73]      ip6_route_add+0x1c/0x140
[ 1815.846899][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1815.846899][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1815.846899][   T73]      netlink_rcv_skb+0x130/0x360
[ 1815.846899][   T73]      netlink_unicast+0x449/0x710
[ 1815.846899][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1815.846899][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1815.846899][   T73]      ___sys_sendmsg+0xee/0x170
[ 1815.846899][   T73]      __sys_sendmsg+0xcd/0x170
[ 1815.846899][   T73]      do_syscall_64+0xc6/0x1e0
[ 1815.846899][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1815.846899][   T73] 
[ 1815.850089][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1815.850089][   T73]      dst_init+0x84/0x4a0
[ 1815.850089][   T73]      dst_alloc+0x97/0x150
[ 1815.850089][   T73]      ip6_dst_alloc+0x23/0x90
[ 1815.850089][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1815.850089][   T73]      ip6_pol_route+0x56f/0x840
[ 1815.850089][   T73]      fib6_rule_lookup+0x456/0x630
[ 1815.850089][   T73]      ip6_route_input+0x59c/0xa50
[ 1815.850089][   T73]      ipv6_rcv+0x397/0x810
[ 1815.850089][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1815.850089][   T73]      process_backlog+0x101/0x620
[ 1815.850089][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1815.850089][   T73]      net_rx_action+0x495/0xbe0
[ 1815.850089][   T73]      __do_softirq+0x1b5/0x7f6
[ 1815.850089][   T73] 
[ 1815.852947][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1815.852947][   T73]      netdev_get_by_index+0x5e/0x80
[ 1815.852947][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1815.852947][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1815.852947][   T73]      ip6_route_add+0x1c/0x140
[ 1815.852947][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1815.852947][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1815.852947][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1815.852947][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1815.852947][   T73]      netlink_rcv_skb+0x130/0x360
[ 1815.852947][   T73]      netlink_unicast+0x449/0x710
[ 1815.852947][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1815.852947][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1815.852947][   T73]      ___sys_sendmsg+0xee/0x170
[ 1815.852947][   T73]      __sys_sendmsg+0xcd/0x170
[ 1815.852947][   T73]      do_syscall_64+0xc6/0x1e0
[ 1815.852947][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1815.852947][   T73] 
[ 1815.856526][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1815.856526][   T73]      netdev_get_by_index+0x5e/0x80
[ 1815.856526][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1815.856526][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1815.856526][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1815.856526][   T73]      ipv6_add_addr+0x411/0x2000
[ 1815.856526][   T73]      inet6_addr_add+0x30e/0xa40
[ 1815.856526][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1815.856526][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1815.856526][   T73]      netlink_rcv_skb+0x130/0x360
[ 1815.856526][   T73]      netlink_unicast+0x449/0x710
[ 1815.856526][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1815.856526][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1815.856526][   T73]      ___sys_sendmsg+0xee/0x170
[ 1815.856526][   T73]      __sys_sendmsg+0xcd/0x170
[ 1815.856526][   T73]      do_syscall_64+0xc6/0x1e0
[ 1815.856526][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1815.856526][   T73] 
[ 1815.860085][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1815.860085][   T73]      netdev_get_by_index+0x5e/0x80
[ 1815.860085][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1815.860085][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1815.860085][   T73]      ip6_route_add+0x1c/0x140
[ 1815.860085][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1815.860085][   T73]      addrconf_add_dev+0xe2/0x170
[ 1815.860085][   T73]      inet6_addr_add+0x12f/0xa40
[ 1815.860085][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1815.860085][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1815.860085][   T73]      netlink_rcv_skb+0x130/0x360
[ 1815.860085][   T73]      netlink_unicast+0x449/0x710
[ 1815.860085][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1815.860085][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1815.860085][   T73]      ___sys_sendmsg+0xee/0x170
[ 1815.860085][   T73]      __sys_sendmsg+0xcd/0x170
[ 1815.860085][   T73]      do_syscall_64+0xc6/0x1e0
[ 1815.860085][   T73] 
[ 1815.863994][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1815.863994][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1815.863994][   T73]      ipv6_find_idev+0x102/0x170
[ 1815.863994][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1815.863994][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1815.863994][   T73]      netlink_rcv_skb+0x130/0x360
[ 1815.863994][   T73]      netlink_unicast+0x449/0x710
[ 1815.863994][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1815.863994][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1815.863994][   T73]      ___sys_sendmsg+0xee/0x170
[ 1815.863994][   T73]      __sys_sendmsg+0xcd/0x170
[ 1815.863994][   T73]      do_syscall_64+0xc6/0x1e0
[ 1815.863994][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1815.863994][   T73] 
[ 1815.866722][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1815.866722][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1815.866722][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1815.866722][   T73]      ipv6_find_idev+0x102/0x170
[ 1815.866722][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1815.866722][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1815.866722][   T73]      netlink_rcv_skb+0x130/0x360
[ 1815.866722][   T73]      netlink_unicast+0x449/0x710
[ 1815.866722][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1815.866722][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1815.866722][   T73]      ___sys_sendmsg+0xee/0x170
[ 1815.866722][   T73]      __sys_sendmsg+0xcd/0x170
[ 1815.866722][   T73]      do_syscall_64+0xc6/0x1e0
[ 1815.866722][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1815.866722][   T73] 
[ 1815.869807][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1815.870245][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1815.870245][   T73]      netdev_get_by_index+0x5e/0x80
[ 1815.870245][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1815.870245][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1815.870245][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1815.870245][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1815.870245][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1815.870245][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1815.870245][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1815.870245][   T73]      addrconf_dad_begin+0x310/0x670
[ 1815.870245][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1815.870245][   T73]      process_one_work+0x84d/0x18a0
[ 1815.870245][   T73]      worker_thread+0x587/0xd30
[ 1815.870245][   T73]      kthread+0x28a/0x350
[ 1815.870245][   T73]      ret_from_fork+0x31/0x70
[ 1815.870245][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1815.870245][   T73] 
[ 1815.873650][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1815.873650][   T73]      netdev_get_by_index+0x5e/0x80
[ 1815.873650][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1815.873650][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1815.873650][   T73]      ip6_route_add+0x1c/0x140
[ 1815.873650][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1815.873650][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1815.873650][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1815.873650][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1815.873650][   T73]      netlink_rcv_skb+0x130/0x360
[ 1815.873650][   T73]      netlink_unicast+0x449/0x710
[ 1815.873650][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1815.873650][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1815.873650][   T73]      ___sys_sendmsg+0xee/0x170
[ 1815.873650][   T73]      __sys_sendmsg+0xcd/0x170
[ 1815.873650][   T73]      do_syscall_64+0xc6/0x1e0
[ 1815.873650][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1815.873650][   T73] 
[ 1815.877193][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1815.877193][   T73]      netdev_get_by_index+0x5e/0x80
[ 1815.877193][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1815.877193][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1815.877193][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1815.877193][   T73]      ipv6_add_addr+0x411/0x2000
[ 1815.877193][   T73]      inet6_addr_add+0x30e/0xa40
[ 1815.877193][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1815.877193][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1815.877193][   T73]      netlink_rcv_skb+0x130/0x360
[ 1815.877193][   T73]      netlink_unicast+0x449/0x710
[ 1815.877193][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1815.877193][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1815.877193][   T73]      ___sys_sendmsg+0xee/0x170
[ 1815.877193][   T73]      __sys_sendmsg+0xcd/0x170
[ 1815.877193][   T73]      do_syscall_64+0xc6/0x1e0
[ 1815.877193][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1815.877193][   T73] 
[ 1815.880646][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1815.880646][   T73]      netdev_get_by_index+0x5e/0x80
[ 1815.880646][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1815.880646][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1815.880646][   T73]      ip6_route_add+0x1c/0x140
[ 1815.880646][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1815.880646][   T73]      addrconf_add_dev+0xe2/0x170
[ 1815.880646][   T73]      inet6_addr_add+0x12f/0xa40
[ 1815.880646][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1815.880646][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1815.880646][   T73]      netlink_rcv_skb+0x130/0x360
[ 1815.880646][   T73]      netlink_unicast+0x449/0x710
[ 1815.880646][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1815.880646][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1815.880646][   T73]      ___sys_sendmsg+0xee/0x170
[ 1815.880646][   T73]      __sys_sendmsg+0xcd/0x170
[ 1815.880646][   T73]      do_syscall_64+0xc6/0x1e0
[ 1815.880646][   T73] 
[ 1815.884049][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1815.884049][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1815.884049][   T73]      ipv6_find_idev+0x102/0x170
[ 1815.884049][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1815.884049][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1815.884049][   T73]      netlink_rcv_skb+0x130/0x360
[ 1815.884049][   T73]      netlink_unicast+0x449/0x710
[ 1815.884049][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1815.884049][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1815.884049][   T73]      ___sys_sendmsg+0xee/0x170
[ 1815.884049][   T73]      __sys_sendmsg+0xcd/0x170
[ 1815.884049][   T73]      do_syscall_64+0xc6/0x1e0
[ 1815.884049][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1815.884049][   T73] 
[ 1815.887760][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1815.887760][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1815.887760][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1815.887760][   T73]      ipv6_find_idev+0x102/0x170
[ 1815.887760][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1815.887760][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1815.887760][   T73]      netlink_rcv_skb+0x130/0x360
[ 1815.887760][   T73]      netlink_unicast+0x449/0x710
[ 1815.887760][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1815.887760][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1815.887760][   T73]      ___sys_sendmsg+0xee/0x170
[ 1815.887760][   T73]      __sys_sendmsg+0xcd/0x170
[ 1815.887760][   T73]      do_syscall_64+0xc6/0x1e0
[ 1815.887760][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1815.887760][   T73] 
[ 1826.127754][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1826.128160][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1826.128160][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1826.128160][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1826.128160][   T73]      fib6_nh_init+0xa22/0x1580
[ 1826.128160][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1826.128160][   T73]      ip6_route_add+0x1c/0x140
[ 1826.128160][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1826.128160][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1826.128160][   T73]      netlink_rcv_skb+0x130/0x360
[ 1826.128160][   T73]      netlink_unicast+0x449/0x710
[ 1826.128160][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1826.128160][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1826.128160][   T73]      ___sys_sendmsg+0xee/0x170
[ 1826.128160][   T73]      __sys_sendmsg+0xcd/0x170
[ 1826.128160][   T73]      do_syscall_64+0xc6/0x1e0
[ 1826.128160][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1826.128160][   T73] 
[ 1826.130073][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1826.130073][   T73]      dst_init+0x84/0x4a0
[ 1826.130073][   T73]      dst_alloc+0x97/0x150
[ 1826.130073][   T73]      ip6_dst_alloc+0x23/0x90
[ 1826.130073][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1826.130073][   T73]      ip6_pol_route+0x56f/0x840
[ 1826.130073][   T73]      fib6_rule_lookup+0x456/0x630
[ 1826.130073][   T73]      ip6_route_input+0x59c/0xa50
[ 1826.130073][   T73]      ipv6_rcv+0x397/0x810
[ 1826.130073][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1826.130073][   T73]      process_backlog+0x101/0x620
[ 1826.130073][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1826.130073][   T73]      net_rx_action+0x495/0xbe0
[ 1826.130073][   T73]      __do_softirq+0x1b5/0x7f6
[ 1826.130073][   T73] 
[ 1826.132129][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1826.132129][   T73]      netdev_get_by_index+0x5e/0x80
[ 1826.132129][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1826.132129][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1826.132129][   T73]      ip6_route_add+0x1c/0x140
[ 1826.132129][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1826.132129][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1826.132129][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1826.132129][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1826.132129][   T73]      netlink_rcv_skb+0x130/0x360
[ 1826.132129][   T73]      netlink_unicast+0x449/0x710
[ 1826.132129][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1826.132129][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1826.132129][   T73]      ___sys_sendmsg+0xee/0x170
[ 1826.132129][   T73]      __sys_sendmsg+0xcd/0x170
[ 1826.132129][   T73]      do_syscall_64+0xc6/0x1e0
[ 1826.132129][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1826.132129][   T73] 
[ 1826.134148][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1826.134148][   T73]      netdev_get_by_index+0x5e/0x80
[ 1826.134148][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1826.134148][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1826.134148][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1826.134148][   T73]      ipv6_add_addr+0x411/0x2000
[ 1826.134148][   T73]      inet6_addr_add+0x30e/0xa40
[ 1826.134148][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1826.134148][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1826.134148][   T73]      netlink_rcv_skb+0x130/0x360
[ 1826.134148][   T73]      netlink_unicast+0x449/0x710
[ 1826.134148][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1826.134148][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1826.134148][   T73]      ___sys_sendmsg+0xee/0x170
[ 1826.134148][   T73]      __sys_sendmsg+0xcd/0x170
[ 1826.134148][   T73]      do_syscall_64+0xc6/0x1e0
[ 1826.134148][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1826.134148][   T73] 
[ 1826.136160][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1826.136160][   T73]      netdev_get_by_index+0x5e/0x80
[ 1826.136160][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1826.136160][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1826.136160][   T73]      ip6_route_add+0x1c/0x140
[ 1826.136160][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1826.136160][   T73]      addrconf_add_dev+0xe2/0x170
[ 1826.136160][   T73]      inet6_addr_add+0x12f/0xa40
[ 1826.136160][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1826.136160][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1826.136160][   T73]      netlink_rcv_skb+0x130/0x360
[ 1826.136160][   T73]      netlink_unicast+0x449/0x710
[ 1826.136160][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1826.136160][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1826.136160][   T73]      ___sys_sendmsg+0xee/0x170
[ 1826.136160][   T73]      __sys_sendmsg+0xcd/0x170
[ 1826.136160][   T73]      do_syscall_64+0xc6/0x1e0
[ 1826.136160][   T73] 
[ 1826.138147][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1826.138147][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1826.138147][   T73]      ipv6_find_idev+0x102/0x170
[ 1826.138147][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1826.138147][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1826.138147][   T73]      netlink_rcv_skb+0x130/0x360
[ 1826.138147][   T73]      netlink_unicast+0x449/0x710
[ 1826.138147][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1826.138147][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1826.138147][   T73]      ___sys_sendmsg+0xee/0x170
[ 1826.138147][   T73]      __sys_sendmsg+0xcd/0x170
[ 1826.138147][   T73]      do_syscall_64+0xc6/0x1e0
[ 1826.138147][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1826.138147][   T73] 
[ 1826.139694][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1826.139694][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1826.139694][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1826.139694][   T73]      ipv6_find_idev+0x102/0x170
[ 1826.139694][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1826.139694][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1826.139694][   T73]      netlink_rcv_skb+0x130/0x360
[ 1826.139694][   T73]      netlink_unicast+0x449/0x710
[ 1826.139694][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1826.139694][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1826.139694][   T73]      ___sys_sendmsg+0xee/0x170
[ 1826.139694][   T73]      __sys_sendmsg+0xcd/0x170
[ 1826.139694][   T73]      do_syscall_64+0xc6/0x1e0
[ 1826.139694][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1826.139694][   T73] 
[ 1826.141408][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1826.141692][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1826.141692][   T73]      netdev_get_by_index+0x5e/0x80
[ 1826.141692][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1826.141692][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1826.141692][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1826.141692][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1826.141692][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1826.141692][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1826.141692][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1826.141692][   T73]      addrconf_dad_begin+0x310/0x670
[ 1826.141692][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1826.141692][   T73]      process_one_work+0x84d/0x18a0
[ 1826.141692][   T73]      worker_thread+0x587/0xd30
[ 1826.141692][   T73]      kthread+0x28a/0x350
[ 1826.141692][   T73]      ret_from_fork+0x31/0x70
[ 1826.141692][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1826.141692][   T73] 
[ 1826.143615][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1826.143615][   T73]      netdev_get_by_index+0x5e/0x80
[ 1826.143615][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1826.143615][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1826.143615][   T73]      ip6_route_add+0x1c/0x140
[ 1826.143615][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1826.143615][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1826.143615][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1826.143615][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1826.143615][   T73]      netlink_rcv_skb+0x130/0x360
[ 1826.143615][   T73]      netlink_unicast+0x449/0x710
[ 1826.143615][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1826.143615][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1826.143615][   T73]      ___sys_sendmsg+0xee/0x170
[ 1826.143615][   T73]      __sys_sendmsg+0xcd/0x170
[ 1826.143615][   T73]      do_syscall_64+0xc6/0x1e0
[ 1826.143615][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1826.143615][   T73] 
[ 1826.145692][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1826.145692][   T73]      netdev_get_by_index+0x5e/0x80
[ 1826.145692][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1826.145692][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1826.145692][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1826.145692][   T73]      ipv6_add_addr+0x411/0x2000
[ 1826.145692][   T73]      inet6_addr_add+0x30e/0xa40
[ 1826.145692][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1826.145692][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1826.145692][   T73]      netlink_rcv_skb+0x130/0x360
[ 1826.145692][   T73]      netlink_unicast+0x449/0x710
[ 1826.145692][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1826.145692][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1826.145692][   T73]      ___sys_sendmsg+0xee/0x170
[ 1826.145692][   T73]      __sys_sendmsg+0xcd/0x170
[ 1826.145692][   T73]      do_syscall_64+0xc6/0x1e0
[ 1826.145692][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1826.145692][   T73] 
[ 1826.147777][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1826.147777][   T73]      netdev_get_by_index+0x5e/0x80
[ 1826.147777][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1826.147777][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1826.147777][   T73]      ip6_route_add+0x1c/0x140
[ 1826.147777][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1826.147777][   T73]      addrconf_add_dev+0xe2/0x170
[ 1826.147777][   T73]      inet6_addr_add+0x12f/0xa40
[ 1826.147777][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1826.147777][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1826.147777][   T73]      netlink_rcv_skb+0x130/0x360
[ 1826.147777][   T73]      netlink_unicast+0x449/0x710
[ 1826.147777][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1826.147777][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1826.147777][   T73]      ___sys_sendmsg+0xee/0x170
[ 1826.147777][   T73]      __sys_sendmsg+0xcd/0x170
[ 1826.147777][   T73]      do_syscall_64+0xc6/0x1e0
[ 1826.147777][   T73] 
[ 1826.149806][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1826.149806][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1826.149806][   T73]      ipv6_find_idev+0x102/0x170
[ 1826.149806][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1826.149806][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1826.149806][   T73]      netlink_rcv_skb+0x130/0x360
[ 1826.149806][   T73]      netlink_unicast+0x449/0x710
[ 1826.149806][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1826.149806][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1826.149806][   T73]      ___sys_sendmsg+0xee/0x170
[ 1826.149806][   T73]      __sys_sendmsg+0xcd/0x170
[ 1826.149806][   T73]      do_syscall_64+0xc6/0x1e0
[ 1826.149806][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1826.149806][   T73] 
[ 1826.151360][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1826.151360][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1826.151360][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1826.151360][   T73]      ipv6_find_idev+0x102/0x170
[ 1826.151360][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1826.151360][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1826.151360][   T73]      netlink_rcv_skb+0x130/0x360
[ 1826.151360][   T73]      netlink_unicast+0x449/0x710
[ 1826.151360][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1826.151360][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1826.151360][   T73]      ___sys_sendmsg+0xee/0x170
[ 1826.151360][   T73]      __sys_sendmsg+0xcd/0x170
[ 1826.151360][   T73]      do_syscall_64+0xc6/0x1e0
[ 1826.151360][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1826.151360][   T73] 
[ 1826.153104][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1826.153387][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1826.153387][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1826.153387][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1826.153387][   T73]      fib6_nh_init+0xa22/0x1580
[ 1826.153387][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1826.153387][   T73]      ip6_route_add+0x1c/0x140
[ 1826.153387][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1826.153387][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1826.153387][   T73]      netlink_rcv_skb+0x130/0x360
[ 1826.153387][   T73]      netlink_unicast+0x449/0x710
[ 1826.153387][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1826.153387][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1826.153387][   T73]      ___sys_sendmsg+0xee/0x170
[ 1826.153387][   T73]      __sys_sendmsg+0xcd/0x170
[ 1826.153387][   T73]      do_syscall_64+0xc6/0x1e0
[ 1826.153387][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1826.153387][   T73] 
[ 1826.155528][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1826.155528][   T73]      dst_init+0x84/0x4a0
[ 1826.155528][   T73]      dst_alloc+0x97/0x150
[ 1826.155528][   T73]      ip6_dst_alloc+0x23/0x90
[ 1826.155528][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1826.155528][   T73]      ip6_pol_route+0x56f/0x840
[ 1826.155528][   T73]      fib6_rule_lookup+0x456/0x630
[ 1826.155528][   T73]      ip6_route_input+0x59c/0xa50
[ 1826.155528][   T73]      ipv6_rcv+0x397/0x810
[ 1826.155528][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1826.155528][   T73]      process_backlog+0x101/0x620
[ 1826.155528][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1826.155528][   T73]      net_rx_action+0x495/0xbe0
[ 1826.155528][   T73]      __do_softirq+0x1b5/0x7f6
[ 1826.155528][   T73] 
[ 1826.157341][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1826.157341][   T73]      netdev_get_by_index+0x5e/0x80
[ 1826.157341][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1826.157341][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1826.157341][   T73]      ip6_route_add+0x1c/0x140
[ 1826.157341][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1826.157341][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1826.157341][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1826.157341][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1826.157341][   T73]      netlink_rcv_skb+0x130/0x360
[ 1826.157341][   T73]      netlink_unicast+0x449/0x710
[ 1826.157341][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1826.157341][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1826.157341][   T73]      ___sys_sendmsg+0xee/0x170
[ 1826.157341][   T73]      __sys_sendmsg+0xcd/0x170
[ 1826.157341][   T73]      do_syscall_64+0xc6/0x1e0
[ 1826.157341][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1826.157341][   T73] 
[ 1826.159497][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1826.159497][   T73]      netdev_get_by_index+0x5e/0x80
[ 1826.159497][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1826.159497][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1826.159497][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1826.159497][   T73]      ipv6_add_addr+0x411/0x2000
[ 1826.159497][   T73]      inet6_addr_add+0x30e/0xa40
[ 1826.159497][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1826.159497][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1826.159497][   T73]      netlink_rcv_skb+0x130/0x360
[ 1826.159497][   T73]      netlink_unicast+0x449/0x710
[ 1826.159497][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1826.159497][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1826.159497][   T73]      ___sys_sendmsg+0xee/0x170
[ 1826.159497][   T73]      __sys_sendmsg+0xcd/0x170
[ 1826.159497][   T73]      do_syscall_64+0xc6/0x1e0
[ 1826.159497][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1826.159497][   T73] 
[ 1826.161656][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1826.161656][   T73]      netdev_get_by_index+0x5e/0x80
[ 1826.161656][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1826.161656][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1826.161656][   T73]      ip6_route_add+0x1c/0x140
[ 1826.161656][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1826.161656][   T73]      addrconf_add_dev+0xe2/0x170
[ 1826.161656][   T73]      inet6_addr_add+0x12f/0xa40
[ 1826.161656][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1826.161656][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1826.161656][   T73]      netlink_rcv_skb+0x130/0x360
[ 1826.161656][   T73]      netlink_unicast+0x449/0x710
[ 1826.161656][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1826.161656][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1826.161656][   T73]      ___sys_sendmsg+0xee/0x170
[ 1826.161656][   T73]      __sys_sendmsg+0xcd/0x170
[ 1826.161656][   T73]      do_syscall_64+0xc6/0x1e0
[ 1826.161656][   T73] 
[ 1826.163773][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1826.163773][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1826.163773][   T73]      ipv6_find_idev+0x102/0x170
[ 1826.163773][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1826.163773][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1826.163773][   T73]      netlink_rcv_skb+0x130/0x360
[ 1826.163773][   T73]      netlink_unicast+0x449/0x710
[ 1826.163773][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1826.163773][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1826.163773][   T73]      ___sys_sendmsg+0xee/0x170
[ 1826.163773][   T73]      __sys_sendmsg+0xcd/0x170
[ 1826.163773][   T73]      do_syscall_64+0xc6/0x1e0
[ 1826.163773][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1826.163773][   T73] 
[ 1826.165404][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1826.165404][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1826.165404][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1826.165404][   T73]      ipv6_find_idev+0x102/0x170
[ 1826.165404][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1826.165404][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1826.165404][   T73]      netlink_rcv_skb+0x130/0x360
[ 1826.165404][   T73]      netlink_unicast+0x449/0x710
[ 1826.165404][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1826.165404][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1826.165404][   T73]      ___sys_sendmsg+0xee/0x170
[ 1826.165404][   T73]      __sys_sendmsg+0xcd/0x170
[ 1826.165404][   T73]      do_syscall_64+0xc6/0x1e0
[ 1826.165404][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1826.165404][   T73] 
[ 1826.167262][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1826.167539][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1826.167539][   T73]      netdev_get_by_index+0x5e/0x80
[ 1826.167539][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1826.167539][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1826.167539][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1826.167539][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1826.167539][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1826.167539][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1826.167539][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1826.167539][   T73]      addrconf_dad_begin+0x310/0x670
[ 1826.167539][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1826.167539][   T73]      process_one_work+0x84d/0x18a0
[ 1826.167539][   T73]      worker_thread+0x587/0xd30
[ 1826.167539][   T73]      kthread+0x28a/0x350
[ 1826.167539][   T73]      ret_from_fork+0x31/0x70
[ 1826.167539][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1826.167539][   T73] 
[ 1826.169596][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1826.169596][   T73]      netdev_get_by_index+0x5e/0x80
[ 1826.169596][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1826.169596][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1826.169596][   T73]      ip6_route_add+0x1c/0x140
[ 1826.169596][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1826.169596][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1826.169596][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1826.169596][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1826.169596][   T73]      netlink_rcv_skb+0x130/0x360
[ 1826.169596][   T73]      netlink_unicast+0x449/0x710
[ 1826.169596][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1826.169596][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1826.169596][   T73]      ___sys_sendmsg+0xee/0x170
[ 1826.169596][   T73]      __sys_sendmsg+0xcd/0x170
[ 1826.169596][   T73]      do_syscall_64+0xc6/0x1e0
[ 1826.169596][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1826.169596][   T73] 
[ 1826.171737][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1826.171737][   T73]      netdev_get_by_index+0x5e/0x80
[ 1826.171737][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1826.171737][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1826.171737][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1826.171737][   T73]      ipv6_add_addr+0x411/0x2000
[ 1826.171737][   T73]      inet6_addr_add+0x30e/0xa40
[ 1826.171737][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1826.171737][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1826.171737][   T73]      netlink_rcv_skb+0x130/0x360
[ 1826.171737][   T73]      netlink_unicast+0x449/0x710
[ 1826.171737][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1826.171737][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1826.171737][   T73]      ___sys_sendmsg+0xee/0x170
[ 1826.171737][   T73]      __sys_sendmsg+0xcd/0x170
[ 1826.171737][   T73]      do_syscall_64+0xc6/0x1e0
[ 1826.171737][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1826.171737][   T73] 
[ 1826.173828][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1826.173828][   T73]      netdev_get_by_index+0x5e/0x80
[ 1826.173828][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1826.173828][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1826.173828][   T73]      ip6_route_add+0x1c/0x140
[ 1826.173828][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1826.173828][   T73]      addrconf_add_dev+0xe2/0x170
[ 1826.173828][   T73]      inet6_addr_add+0x12f/0xa40
[ 1826.173828][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1826.173828][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1826.173828][   T73]      netlink_rcv_skb+0x130/0x360
[ 1826.173828][   T73]      netlink_unicast+0x449/0x710
[ 1826.173828][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1826.173828][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1826.173828][   T73]      ___sys_sendmsg+0xee/0x170
[ 1826.173828][   T73]      __sys_sendmsg+0xcd/0x170
[ 1826.173828][   T73]      do_syscall_64+0xc6/0x1e0
[ 1826.173828][   T73] 
[ 1826.175945][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1826.175945][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1826.175945][   T73]      ipv6_find_idev+0x102/0x170
[ 1826.175945][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1826.175945][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1826.175945][   T73]      netlink_rcv_skb+0x130/0x360
[ 1826.175945][   T73]      netlink_unicast+0x449/0x710
[ 1826.175945][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1826.175945][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1826.175945][   T73]      ___sys_sendmsg+0xee/0x170
[ 1826.175945][   T73]      __sys_sendmsg+0xcd/0x170
[ 1826.175945][   T73]      do_syscall_64+0xc6/0x1e0
[ 1826.175945][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1826.175945][   T73] 
[ 1826.177662][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1826.177662][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1826.177662][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1826.177662][   T73]      ipv6_find_idev+0x102/0x170
[ 1826.177662][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1826.177662][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1826.177662][   T73]      netlink_rcv_skb+0x130/0x360
[ 1826.177662][   T73]      netlink_unicast+0x449/0x710
[ 1826.177662][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1826.177662][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1826.177662][   T73]      ___sys_sendmsg+0xee/0x170
[ 1826.177662][   T73]      __sys_sendmsg+0xcd/0x170
[ 1826.177662][   T73]      do_syscall_64+0xc6/0x1e0
[ 1826.177662][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1826.177662][   T73] 
[ 1836.375754][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1836.376158][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1836.376158][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1836.376158][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1836.376158][   T73]      fib6_nh_init+0xa22/0x1580
[ 1836.376158][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1836.376158][   T73]      ip6_route_add+0x1c/0x140
[ 1836.376158][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1836.376158][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1836.376158][   T73]      netlink_rcv_skb+0x130/0x360
[ 1836.376158][   T73]      netlink_unicast+0x449/0x710
[ 1836.376158][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1836.376158][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1836.376158][   T73]      ___sys_sendmsg+0xee/0x170
[ 1836.376158][   T73]      __sys_sendmsg+0xcd/0x170
[ 1836.376158][   T73]      do_syscall_64+0xc6/0x1e0
[ 1836.376158][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1836.376158][   T73] 
[ 1836.378122][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1836.378122][   T73]      dst_init+0x84/0x4a0
[ 1836.378122][   T73]      dst_alloc+0x97/0x150
[ 1836.378122][   T73]      ip6_dst_alloc+0x23/0x90
[ 1836.378122][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1836.378122][   T73]      ip6_pol_route+0x56f/0x840
[ 1836.378122][   T73]      fib6_rule_lookup+0x456/0x630
[ 1836.378122][   T73]      ip6_route_input+0x59c/0xa50
[ 1836.378122][   T73]      ipv6_rcv+0x397/0x810
[ 1836.378122][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1836.378122][   T73]      process_backlog+0x101/0x620
[ 1836.378122][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1836.378122][   T73]      net_rx_action+0x495/0xbe0
[ 1836.378122][   T73]      __do_softirq+0x1b5/0x7f6
[ 1836.378122][   T73] 
[ 1836.379791][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1836.379791][   T73]      netdev_get_by_index+0x5e/0x80
[ 1836.379791][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1836.379791][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1836.379791][   T73]      ip6_route_add+0x1c/0x140
[ 1836.379791][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1836.379791][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1836.379791][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1836.379791][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1836.379791][   T73]      netlink_rcv_skb+0x130/0x360
[ 1836.379791][   T73]      netlink_unicast+0x449/0x710
[ 1836.379791][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1836.379791][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1836.379791][   T73]      ___sys_sendmsg+0xee/0x170
[ 1836.379791][   T73]      __sys_sendmsg+0xcd/0x170
[ 1836.379791][   T73]      do_syscall_64+0xc6/0x1e0
[ 1836.379791][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1836.379791][   T73] 
[ 1836.382180][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1836.382180][   T73]      netdev_get_by_index+0x5e/0x80
[ 1836.382180][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1836.382180][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1836.382180][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1836.382180][   T73]      ipv6_add_addr+0x411/0x2000
[ 1836.382180][   T73]      inet6_addr_add+0x30e/0xa40
[ 1836.382180][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1836.382180][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1836.382180][   T73]      netlink_rcv_skb+0x130/0x360
[ 1836.382180][   T73]      netlink_unicast+0x449/0x710
[ 1836.382180][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1836.382180][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1836.382180][   T73]      ___sys_sendmsg+0xee/0x170
[ 1836.382180][   T73]      __sys_sendmsg+0xcd/0x170
[ 1836.382180][   T73]      do_syscall_64+0xc6/0x1e0
[ 1836.382180][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1836.382180][   T73] 
[ 1836.384195][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1836.384195][   T73]      netdev_get_by_index+0x5e/0x80
[ 1836.384195][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1836.384195][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1836.384195][   T73]      ip6_route_add+0x1c/0x140
[ 1836.384195][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1836.384195][   T73]      addrconf_add_dev+0xe2/0x170
[ 1836.384195][   T73]      inet6_addr_add+0x12f/0xa40
[ 1836.384195][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1836.384195][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1836.384195][   T73]      netlink_rcv_skb+0x130/0x360
[ 1836.384195][   T73]      netlink_unicast+0x449/0x710
[ 1836.384195][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1836.384195][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1836.384195][   T73]      ___sys_sendmsg+0xee/0x170
[ 1836.384195][   T73]      __sys_sendmsg+0xcd/0x170
[ 1836.384195][   T73]      do_syscall_64+0xc6/0x1e0
[ 1836.384195][   T73] 
[ 1836.386178][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1836.386178][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1836.386178][   T73]      ipv6_find_idev+0x102/0x170
[ 1836.386178][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1836.386178][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1836.386178][   T73]      netlink_rcv_skb+0x130/0x360
[ 1836.386178][   T73]      netlink_unicast+0x449/0x710
[ 1836.386178][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1836.386178][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1836.386178][   T73]      ___sys_sendmsg+0xee/0x170
[ 1836.386178][   T73]      __sys_sendmsg+0xcd/0x170
[ 1836.386178][   T73]      do_syscall_64+0xc6/0x1e0
[ 1836.386178][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1836.386178][   T73] 
[ 1836.387744][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1836.387744][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1836.387744][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1836.387744][   T73]      ipv6_find_idev+0x102/0x170
[ 1836.387744][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1836.387744][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1836.387744][   T73]      netlink_rcv_skb+0x130/0x360
[ 1836.387744][   T73]      netlink_unicast+0x449/0x710
[ 1836.387744][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1836.387744][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1836.387744][   T73]      ___sys_sendmsg+0xee/0x170
[ 1836.387744][   T73]      __sys_sendmsg+0xcd/0x170
[ 1836.387744][   T73]      do_syscall_64+0xc6/0x1e0
[ 1836.387744][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1836.387744][   T73] 
[ 1836.389479][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1836.389778][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1836.389778][   T73]      netdev_get_by_index+0x5e/0x80
[ 1836.389778][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1836.389778][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1836.389778][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1836.389778][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1836.389778][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1836.389778][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1836.389778][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1836.389778][   T73]      addrconf_dad_begin+0x310/0x670
[ 1836.389778][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1836.389778][   T73]      process_one_work+0x84d/0x18a0
[ 1836.389778][   T73]      worker_thread+0x587/0xd30
[ 1836.389778][   T73]      kthread+0x28a/0x350
[ 1836.389778][   T73]      ret_from_fork+0x31/0x70
[ 1836.389778][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1836.389778][   T73] 
[ 1836.391715][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1836.391715][   T73]      netdev_get_by_index+0x5e/0x80
[ 1836.391715][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1836.391715][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1836.391715][   T73]      ip6_route_add+0x1c/0x140
[ 1836.391715][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1836.391715][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1836.391715][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1836.391715][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1836.391715][   T73]      netlink_rcv_skb+0x130/0x360
[ 1836.391715][   T73]      netlink_unicast+0x449/0x710
[ 1836.391715][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1836.391715][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1836.391715][   T73]      ___sys_sendmsg+0xee/0x170
[ 1836.391715][   T73]      __sys_sendmsg+0xcd/0x170
[ 1836.391715][   T73]      do_syscall_64+0xc6/0x1e0
[ 1836.391715][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1836.391715][   T73] 
[ 1836.393737][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1836.393737][   T73]      netdev_get_by_index+0x5e/0x80
[ 1836.393737][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1836.393737][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1836.393737][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1836.393737][   T73]      ipv6_add_addr+0x411/0x2000
[ 1836.393737][   T73]      inet6_addr_add+0x30e/0xa40
[ 1836.393737][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1836.393737][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1836.393737][   T73]      netlink_rcv_skb+0x130/0x360
[ 1836.393737][   T73]      netlink_unicast+0x449/0x710
[ 1836.393737][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1836.393737][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1836.393737][   T73]      ___sys_sendmsg+0xee/0x170
[ 1836.393737][   T73]      __sys_sendmsg+0xcd/0x170
[ 1836.393737][   T73]      do_syscall_64+0xc6/0x1e0
[ 1836.393737][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1836.393737][   T73] 
[ 1836.395764][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1836.395764][   T73]      netdev_get_by_index+0x5e/0x80
[ 1836.395764][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1836.395764][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1836.395764][   T73]      ip6_route_add+0x1c/0x140
[ 1836.395764][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1836.395764][   T73]      addrconf_add_dev+0xe2/0x170
[ 1836.395764][   T73]      inet6_addr_add+0x12f/0xa40
[ 1836.395764][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1836.395764][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1836.395764][   T73]      netlink_rcv_skb+0x130/0x360
[ 1836.395764][   T73]      netlink_unicast+0x449/0x710
[ 1836.395764][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1836.395764][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1836.395764][   T73]      ___sys_sendmsg+0xee/0x170
[ 1836.395764][   T73]      __sys_sendmsg+0xcd/0x170
[ 1836.395764][   T73]      do_syscall_64+0xc6/0x1e0
[ 1836.395764][   T73] 
[ 1836.397765][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1836.397765][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1836.397765][   T73]      ipv6_find_idev+0x102/0x170
[ 1836.397765][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1836.397765][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1836.397765][   T73]      netlink_rcv_skb+0x130/0x360
[ 1836.397765][   T73]      netlink_unicast+0x449/0x710
[ 1836.397765][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1836.397765][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1836.397765][   T73]      ___sys_sendmsg+0xee/0x170
[ 1836.397765][   T73]      __sys_sendmsg+0xcd/0x170
[ 1836.397765][   T73]      do_syscall_64+0xc6/0x1e0
[ 1836.397765][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1836.397765][   T73] 
[ 1836.399320][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1836.399320][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1836.399320][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1836.399320][   T73]      ipv6_find_idev+0x102/0x170
[ 1836.399320][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1836.399320][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1836.399320][   T73]      netlink_rcv_skb+0x130/0x360
[ 1836.399320][   T73]      netlink_unicast+0x449/0x710
[ 1836.399320][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1836.399320][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1836.399320][   T73]      ___sys_sendmsg+0xee/0x170
[ 1836.399320][   T73]      __sys_sendmsg+0xcd/0x170
[ 1836.399320][   T73]      do_syscall_64+0xc6/0x1e0
[ 1836.399320][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1836.399320][   T73] 
[ 1836.401026][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1836.401306][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1836.401306][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1836.401306][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1836.401306][   T73]      fib6_nh_init+0xa22/0x1580
[ 1836.401306][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1836.401306][   T73]      ip6_route_add+0x1c/0x140
[ 1836.401306][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1836.401306][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1836.401306][   T73]      netlink_rcv_skb+0x130/0x360
[ 1836.401306][   T73]      netlink_unicast+0x449/0x710
[ 1836.401306][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1836.401306][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1836.401306][   T73]      ___sys_sendmsg+0xee/0x170
[ 1836.401306][   T73]      __sys_sendmsg+0xcd/0x170
[ 1836.401306][   T73]      do_syscall_64+0xc6/0x1e0
[ 1836.401306][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1836.401306][   T73] 
[ 1836.403403][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1836.403403][   T73]      dst_init+0x84/0x4a0
[ 1836.403403][   T73]      dst_alloc+0x97/0x150
[ 1836.403403][   T73]      ip6_dst_alloc+0x23/0x90
[ 1836.403403][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1836.403403][   T73]      ip6_pol_route+0x56f/0x840
[ 1836.403403][   T73]      fib6_rule_lookup+0x456/0x630
[ 1836.403403][   T73]      ip6_route_input+0x59c/0xa50
[ 1836.403403][   T73]      ipv6_rcv+0x397/0x810
[ 1836.403403][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1836.403403][   T73]      process_backlog+0x101/0x620
[ 1836.403403][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1836.403403][   T73]      net_rx_action+0x495/0xbe0
[ 1836.403403][   T73]      __do_softirq+0x1b5/0x7f6
[ 1836.403403][   T73] 
[ 1836.405264][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1836.405264][   T73]      netdev_get_by_index+0x5e/0x80
[ 1836.405264][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1836.405264][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1836.405264][   T73]      ip6_route_add+0x1c/0x140
[ 1836.405264][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1836.405264][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1836.405264][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1836.405264][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1836.405264][   T73]      netlink_rcv_skb+0x130/0x360
[ 1836.405264][   T73]      netlink_unicast+0x449/0x710
[ 1836.405264][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1836.405264][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1836.405264][   T73]      ___sys_sendmsg+0xee/0x170
[ 1836.405264][   T73]      __sys_sendmsg+0xcd/0x170
[ 1836.405264][   T73]      do_syscall_64+0xc6/0x1e0
[ 1836.405264][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1836.405264][   T73] 
[ 1836.407544][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1836.407544][   T73]      netdev_get_by_index+0x5e/0x80
[ 1836.407544][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1836.407544][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1836.407544][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1836.407544][   T73]      ipv6_add_addr+0x411/0x2000
[ 1836.407544][   T73]      inet6_addr_add+0x30e/0xa40
[ 1836.407544][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1836.407544][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1836.407544][   T73]      netlink_rcv_skb+0x130/0x360
[ 1836.407544][   T73]      netlink_unicast+0x449/0x710
[ 1836.407544][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1836.407544][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1836.407544][   T73]      ___sys_sendmsg+0xee/0x170
[ 1836.407544][   T73]      __sys_sendmsg+0xcd/0x170
[ 1836.407544][   T73]      do_syscall_64+0xc6/0x1e0
[ 1836.407544][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1836.407544][   T73] 
[ 1836.409879][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1836.409879][   T73]      netdev_get_by_index+0x5e/0x80
[ 1836.409879][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1836.409879][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1836.409879][   T73]      ip6_route_add+0x1c/0x140
[ 1836.409879][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1836.409879][   T73]      addrconf_add_dev+0xe2/0x170
[ 1836.409879][   T73]      inet6_addr_add+0x12f/0xa40
[ 1836.409879][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1836.409879][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1836.409879][   T73]      netlink_rcv_skb+0x130/0x360
[ 1836.409879][   T73]      netlink_unicast+0x449/0x710
[ 1836.409879][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1836.409879][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1836.409879][   T73]      ___sys_sendmsg+0xee/0x170
[ 1836.409879][   T73]      __sys_sendmsg+0xcd/0x170
[ 1836.409879][   T73]      do_syscall_64+0xc6/0x1e0
[ 1836.409879][   T73] 
[ 1836.412111][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1836.412111][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1836.412111][   T73]      ipv6_find_idev+0x102/0x170
[ 1836.412111][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1836.412111][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1836.412111][   T73]      netlink_rcv_skb+0x130/0x360
[ 1836.412111][   T73]      netlink_unicast+0x449/0x710
[ 1836.412111][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1836.412111][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1836.412111][   T73]      ___sys_sendmsg+0xee/0x170
[ 1836.412111][   T73]      __sys_sendmsg+0xcd/0x170
[ 1836.412111][   T73]      do_syscall_64+0xc6/0x1e0
[ 1836.412111][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1836.412111][   T73] 
[ 1836.413788][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1836.413788][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1836.413788][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1836.413788][   T73]      ipv6_find_idev+0x102/0x170
[ 1836.413788][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1836.413788][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1836.413788][   T73]      netlink_rcv_skb+0x130/0x360
[ 1836.413788][   T73]      netlink_unicast+0x449/0x710
[ 1836.413788][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1836.413788][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1836.413788][   T73]      ___sys_sendmsg+0xee/0x170
[ 1836.413788][   T73]      __sys_sendmsg+0xcd/0x170
[ 1836.413788][   T73]      do_syscall_64+0xc6/0x1e0
[ 1836.413788][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1836.413788][   T73] 
[ 1836.415745][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1836.416025][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1836.416025][   T73]      netdev_get_by_index+0x5e/0x80
[ 1836.416025][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1836.416025][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1836.416025][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1836.416025][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1836.416025][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1836.416025][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1836.416025][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1836.416025][   T73]      addrconf_dad_begin+0x310/0x670
[ 1836.416025][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1836.416025][   T73]      process_one_work+0x84d/0x18a0
[ 1836.416025][   T73]      worker_thread+0x587/0xd30
[ 1836.416025][   T73]      kthread+0x28a/0x350
[ 1836.416025][   T73]      ret_from_fork+0x31/0x70
[ 1836.416025][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1836.416025][   T73] 
[ 1836.418281][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1836.418281][   T73]      netdev_get_by_index+0x5e/0x80
[ 1836.418281][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1836.418281][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1836.418281][   T73]      ip6_route_add+0x1c/0x140
[ 1836.418281][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1836.418281][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1836.418281][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1836.418281][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1836.418281][   T73]      netlink_rcv_skb+0x130/0x360
[ 1836.418281][   T73]      netlink_unicast+0x449/0x710
[ 1836.418281][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1836.418281][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1836.418281][   T73]      ___sys_sendmsg+0xee/0x170
[ 1836.418281][   T73]      __sys_sendmsg+0xcd/0x170
[ 1836.418281][   T73]      do_syscall_64+0xc6/0x1e0
[ 1836.418281][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1836.418281][   T73] 
[ 1836.420540][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1836.420540][   T73]      netdev_get_by_index+0x5e/0x80
[ 1836.420540][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1836.420540][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1836.420540][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1836.420540][   T73]      ipv6_add_addr+0x411/0x2000
[ 1836.420540][   T73]      inet6_addr_add+0x30e/0xa40
[ 1836.420540][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1836.420540][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1836.420540][   T73]      netlink_rcv_skb+0x130/0x360
[ 1836.420540][   T73]      netlink_unicast+0x449/0x710
[ 1836.420540][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1836.420540][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1836.420540][   T73]      ___sys_sendmsg+0xee/0x170
[ 1836.420540][   T73]      __sys_sendmsg+0xcd/0x170
[ 1836.420540][   T73]      do_syscall_64+0xc6/0x1e0
[ 1836.420540][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1836.420540][   T73] 
[ 1836.422745][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1836.422745][   T73]      netdev_get_by_index+0x5e/0x80
[ 1836.422745][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1836.422745][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1836.422745][   T73]      ip6_route_add+0x1c/0x140
[ 1836.422745][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1836.422745][   T73]      addrconf_add_dev+0xe2/0x170
[ 1836.422745][   T73]      inet6_addr_add+0x12f/0xa40
[ 1836.422745][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1836.422745][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1836.422745][   T73]      netlink_rcv_skb+0x130/0x360
[ 1836.422745][   T73]      netlink_unicast+0x449/0x710
[ 1836.422745][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1836.422745][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1836.422745][   T73]      ___sys_sendmsg+0xee/0x170
[ 1836.422745][   T73]      __sys_sendmsg+0xcd/0x170
[ 1836.422745][   T73]      do_syscall_64+0xc6/0x1e0
[ 1836.422745][   T73] 
[ 1836.424969][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1836.424969][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1836.424969][   T73]      ipv6_find_idev+0x102/0x170
[ 1836.424969][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1836.424969][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1836.424969][   T73]      netlink_rcv_skb+0x130/0x360
[ 1836.424969][   T73]      netlink_unicast+0x449/0x710
[ 1836.424969][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1836.424969][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1836.424969][   T73]      ___sys_sendmsg+0xee/0x170
[ 1836.424969][   T73]      __sys_sendmsg+0xcd/0x170
[ 1836.424969][   T73]      do_syscall_64+0xc6/0x1e0
[ 1836.424969][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1836.424969][   T73] 
[ 1836.426717][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1836.426717][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1836.426717][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1836.426717][   T73]      ipv6_find_idev+0x102/0x170
[ 1836.426717][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1836.426717][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1836.426717][   T73]      netlink_rcv_skb+0x130/0x360
[ 1836.426717][   T73]      netlink_unicast+0x449/0x710
[ 1836.426717][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1836.426717][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1836.426717][   T73]      ___sys_sendmsg+0xee/0x170
[ 1836.426717][   T73]      __sys_sendmsg+0xcd/0x170
[ 1836.426717][   T73]      do_syscall_64+0xc6/0x1e0
[ 1836.426717][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1836.426717][   T73] 
[ 1846.671772][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1846.672167][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1846.672167][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1846.672167][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1846.672167][   T73]      fib6_nh_init+0xa22/0x1580
[ 1846.672167][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1846.672167][   T73]      ip6_route_add+0x1c/0x140
[ 1846.672167][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1846.672167][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1846.672167][   T73]      netlink_rcv_skb+0x130/0x360
[ 1846.672167][   T73]      netlink_unicast+0x449/0x710
[ 1846.672167][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1846.672167][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1846.672167][   T73]      ___sys_sendmsg+0xee/0x170
[ 1846.672167][   T73]      __sys_sendmsg+0xcd/0x170
[ 1846.672167][   T73]      do_syscall_64+0xc6/0x1e0
[ 1846.672167][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1846.672167][   T73] 
[ 1846.674048][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1846.674048][   T73]      dst_init+0x84/0x4a0
[ 1846.674048][   T73]      dst_alloc+0x97/0x150
[ 1846.674048][   T73]      ip6_dst_alloc+0x23/0x90
[ 1846.674048][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1846.674048][   T73]      ip6_pol_route+0x56f/0x840
[ 1846.674048][   T73]      fib6_rule_lookup+0x456/0x630
[ 1846.674048][   T73]      ip6_route_input+0x59c/0xa50
[ 1846.674048][   T73]      ipv6_rcv+0x397/0x810
[ 1846.674048][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1846.674048][   T73]      process_backlog+0x101/0x620
[ 1846.674048][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1846.674048][   T73]      net_rx_action+0x495/0xbe0
[ 1846.674048][   T73]      __do_softirq+0x1b5/0x7f6
[ 1846.674048][   T73] 
[ 1846.675706][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1846.675706][   T73]      netdev_get_by_index+0x5e/0x80
[ 1846.675706][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1846.675706][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1846.675706][   T73]      ip6_route_add+0x1c/0x140
[ 1846.675706][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1846.675706][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1846.675706][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1846.675706][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1846.675706][   T73]      netlink_rcv_skb+0x130/0x360
[ 1846.675706][   T73]      netlink_unicast+0x449/0x710
[ 1846.675706][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1846.675706][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1846.675706][   T73]      ___sys_sendmsg+0xee/0x170
[ 1846.675706][   T73]      __sys_sendmsg+0xcd/0x170
[ 1846.675706][   T73]      do_syscall_64+0xc6/0x1e0
[ 1846.675706][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1846.675706][   T73] 
[ 1846.677717][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1846.677717][   T73]      netdev_get_by_index+0x5e/0x80
[ 1846.677717][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1846.677717][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1846.677717][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1846.677717][   T73]      ipv6_add_addr+0x411/0x2000
[ 1846.677717][   T73]      inet6_addr_add+0x30e/0xa40
[ 1846.677717][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1846.677717][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1846.677717][   T73]      netlink_rcv_skb+0x130/0x360
[ 1846.677717][   T73]      netlink_unicast+0x449/0x710
[ 1846.677717][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1846.677717][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1846.677717][   T73]      ___sys_sendmsg+0xee/0x170
[ 1846.677717][   T73]      __sys_sendmsg+0xcd/0x170
[ 1846.677717][   T73]      do_syscall_64+0xc6/0x1e0
[ 1846.677717][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1846.677717][   T73] 
[ 1846.679795][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1846.679795][   T73]      netdev_get_by_index+0x5e/0x80
[ 1846.679795][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1846.679795][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1846.679795][   T73]      ip6_route_add+0x1c/0x140
[ 1846.679795][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1846.679795][   T73]      addrconf_add_dev+0xe2/0x170
[ 1846.679795][   T73]      inet6_addr_add+0x12f/0xa40
[ 1846.679795][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1846.679795][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1846.679795][   T73]      netlink_rcv_skb+0x130/0x360
[ 1846.679795][   T73]      netlink_unicast+0x449/0x710
[ 1846.679795][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1846.679795][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1846.679795][   T73]      ___sys_sendmsg+0xee/0x170
[ 1846.679795][   T73]      __sys_sendmsg+0xcd/0x170
[ 1846.679795][   T73]      do_syscall_64+0xc6/0x1e0
[ 1846.679795][   T73] 
[ 1846.681743][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1846.681743][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1846.681743][   T73]      ipv6_find_idev+0x102/0x170
[ 1846.681743][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1846.681743][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1846.681743][   T73]      netlink_rcv_skb+0x130/0x360
[ 1846.681743][   T73]      netlink_unicast+0x449/0x710
[ 1846.681743][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1846.681743][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1846.681743][   T73]      ___sys_sendmsg+0xee/0x170
[ 1846.681743][   T73]      __sys_sendmsg+0xcd/0x170
[ 1846.681743][   T73]      do_syscall_64+0xc6/0x1e0
[ 1846.681743][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1846.681743][   T73] 
[ 1846.683279][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1846.683279][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1846.683279][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1846.683279][   T73]      ipv6_find_idev+0x102/0x170
[ 1846.683279][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1846.683279][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1846.683279][   T73]      netlink_rcv_skb+0x130/0x360
[ 1846.683279][   T73]      netlink_unicast+0x449/0x710
[ 1846.683279][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1846.683279][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1846.683279][   T73]      ___sys_sendmsg+0xee/0x170
[ 1846.683279][   T73]      __sys_sendmsg+0xcd/0x170
[ 1846.683279][   T73]      do_syscall_64+0xc6/0x1e0
[ 1846.683279][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1846.683279][   T73] 
[ 1846.684964][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1846.685241][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1846.685241][   T73]      netdev_get_by_index+0x5e/0x80
[ 1846.685241][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1846.685241][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1846.685241][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1846.685241][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1846.685241][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1846.685241][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1846.685241][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1846.685241][   T73]      addrconf_dad_begin+0x310/0x670
[ 1846.685241][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1846.685241][   T73]      process_one_work+0x84d/0x18a0
[ 1846.685241][   T73]      worker_thread+0x587/0xd30
[ 1846.685241][   T73]      kthread+0x28a/0x350
[ 1846.685241][   T73]      ret_from_fork+0x31/0x70
[ 1846.685241][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1846.685241][   T73] 
[ 1846.687212][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1846.687212][   T73]      netdev_get_by_index+0x5e/0x80
[ 1846.687212][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1846.687212][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1846.687212][   T73]      ip6_route_add+0x1c/0x140
[ 1846.687212][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1846.687212][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1846.687212][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1846.687212][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1846.687212][   T73]      netlink_rcv_skb+0x130/0x360
[ 1846.687212][   T73]      netlink_unicast+0x449/0x710
[ 1846.687212][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1846.687212][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1846.687212][   T73]      ___sys_sendmsg+0xee/0x170
[ 1846.687212][   T73]      __sys_sendmsg+0xcd/0x170
[ 1846.687212][   T73]      do_syscall_64+0xc6/0x1e0
[ 1846.687212][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1846.687212][   T73] 
[ 1846.689222][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1846.689222][   T73]      netdev_get_by_index+0x5e/0x80
[ 1846.689222][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1846.689222][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1846.689222][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1846.689222][   T73]      ipv6_add_addr+0x411/0x2000
[ 1846.689222][   T73]      inet6_addr_add+0x30e/0xa40
[ 1846.689222][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1846.689222][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1846.689222][   T73]      netlink_rcv_skb+0x130/0x360
[ 1846.689222][   T73]      netlink_unicast+0x449/0x710
[ 1846.689222][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1846.689222][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1846.689222][   T73]      ___sys_sendmsg+0xee/0x170
[ 1846.689222][   T73]      __sys_sendmsg+0xcd/0x170
[ 1846.689222][   T73]      do_syscall_64+0xc6/0x1e0
[ 1846.689222][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1846.689222][   T73] 
[ 1846.691221][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1846.691221][   T73]      netdev_get_by_index+0x5e/0x80
[ 1846.691221][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1846.691221][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1846.691221][   T73]      ip6_route_add+0x1c/0x140
[ 1846.691221][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1846.691221][   T73]      addrconf_add_dev+0xe2/0x170
[ 1846.691221][   T73]      inet6_addr_add+0x12f/0xa40
[ 1846.691221][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1846.691221][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1846.691221][   T73]      netlink_rcv_skb+0x130/0x360
[ 1846.691221][   T73]      netlink_unicast+0x449/0x710
[ 1846.691221][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1846.691221][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1846.691221][   T73]      ___sys_sendmsg+0xee/0x170
[ 1846.691221][   T73]      __sys_sendmsg+0xcd/0x170
[ 1846.691221][   T73]      do_syscall_64+0xc6/0x1e0
[ 1846.691221][   T73] 
[ 1846.693190][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1846.693190][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1846.693190][   T73]      ipv6_find_idev+0x102/0x170
[ 1846.693190][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1846.693190][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1846.693190][   T73]      netlink_rcv_skb+0x130/0x360
[ 1846.693190][   T73]      netlink_unicast+0x449/0x710
[ 1846.693190][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1846.693190][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1846.693190][   T73]      ___sys_sendmsg+0xee/0x170
[ 1846.693190][   T73]      __sys_sendmsg+0xcd/0x170
[ 1846.693190][   T73]      do_syscall_64+0xc6/0x1e0
[ 1846.693190][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1846.693190][   T73] 
[ 1846.694733][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1846.694733][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1846.694733][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1846.694733][   T73]      ipv6_find_idev+0x102/0x170
[ 1846.694733][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1846.694733][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1846.694733][   T73]      netlink_rcv_skb+0x130/0x360
[ 1846.694733][   T73]      netlink_unicast+0x449/0x710
[ 1846.694733][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1846.694733][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1846.694733][   T73]      ___sys_sendmsg+0xee/0x170
[ 1846.694733][   T73]      __sys_sendmsg+0xcd/0x170
[ 1846.694733][   T73]      do_syscall_64+0xc6/0x1e0
[ 1846.694733][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1846.694733][   T73] 
[ 1846.696443][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1846.696745][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1846.696745][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1846.696745][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1846.696745][   T73]      fib6_nh_init+0xa22/0x1580
[ 1846.696745][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1846.696745][   T73]      ip6_route_add+0x1c/0x140
[ 1846.696745][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1846.696745][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1846.696745][   T73]      netlink_rcv_skb+0x130/0x360
[ 1846.696745][   T73]      netlink_unicast+0x449/0x710
[ 1846.696745][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1846.696745][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1846.696745][   T73]      ___sys_sendmsg+0xee/0x170
[ 1846.696745][   T73]      __sys_sendmsg+0xcd/0x170
[ 1846.696745][   T73]      do_syscall_64+0xc6/0x1e0
[ 1846.696745][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1846.696745][   T73] 
[ 1846.698739][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1846.698739][   T73]      dst_init+0x84/0x4a0
[ 1846.698739][   T73]      dst_alloc+0x97/0x150
[ 1846.698739][   T73]      ip6_dst_alloc+0x23/0x90
[ 1846.698739][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1846.698739][   T73]      ip6_pol_route+0x56f/0x840
[ 1846.698739][   T73]      fib6_rule_lookup+0x456/0x630
[ 1846.698739][   T73]      ip6_route_input+0x59c/0xa50
[ 1846.698739][   T73]      ipv6_rcv+0x397/0x810
[ 1846.698739][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1846.698739][   T73]      process_backlog+0x101/0x620
[ 1846.698739][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1846.698739][   T73]      net_rx_action+0x495/0xbe0
[ 1846.698739][   T73]      __do_softirq+0x1b5/0x7f6
[ 1846.698739][   T73] 
[ 1846.700604][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1846.700604][   T73]      netdev_get_by_index+0x5e/0x80
[ 1846.700604][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1846.700604][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1846.700604][   T73]      ip6_route_add+0x1c/0x140
[ 1846.700604][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1846.700604][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1846.700604][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1846.700604][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1846.700604][   T73]      netlink_rcv_skb+0x130/0x360
[ 1846.700604][   T73]      netlink_unicast+0x449/0x710
[ 1846.700604][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1846.700604][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1846.700604][   T73]      ___sys_sendmsg+0xee/0x170
[ 1846.700604][   T73]      __sys_sendmsg+0xcd/0x170
[ 1846.700604][   T73]      do_syscall_64+0xc6/0x1e0
[ 1846.700604][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1846.700604][   T73] 
[ 1846.702846][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1846.702846][   T73]      netdev_get_by_index+0x5e/0x80
[ 1846.702846][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1846.702846][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1846.702846][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1846.702846][   T73]      ipv6_add_addr+0x411/0x2000
[ 1846.702846][   T73]      inet6_addr_add+0x30e/0xa40
[ 1846.702846][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1846.702846][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1846.702846][   T73]      netlink_rcv_skb+0x130/0x360
[ 1846.702846][   T73]      netlink_unicast+0x449/0x710
[ 1846.702846][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1846.702846][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1846.702846][   T73]      ___sys_sendmsg+0xee/0x170
[ 1846.702846][   T73]      __sys_sendmsg+0xcd/0x170
[ 1846.702846][   T73]      do_syscall_64+0xc6/0x1e0
[ 1846.702846][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1846.702846][   T73] 
[ 1846.705070][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1846.705070][   T73]      netdev_get_by_index+0x5e/0x80
[ 1846.705070][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1846.705070][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1846.705070][   T73]      ip6_route_add+0x1c/0x140
[ 1846.705070][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1846.705070][   T73]      addrconf_add_dev+0xe2/0x170
[ 1846.705070][   T73]      inet6_addr_add+0x12f/0xa40
[ 1846.705070][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1846.705070][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1846.705070][   T73]      netlink_rcv_skb+0x130/0x360
[ 1846.705070][   T73]      netlink_unicast+0x449/0x710
[ 1846.705070][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1846.705070][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1846.705070][   T73]      ___sys_sendmsg+0xee/0x170
[ 1846.705070][   T73]      __sys_sendmsg+0xcd/0x170
[ 1846.705070][   T73]      do_syscall_64+0xc6/0x1e0
[ 1846.705070][   T73] 
[ 1846.707353][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1846.707353][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1846.707353][   T73]      ipv6_find_idev+0x102/0x170
[ 1846.707353][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1846.707353][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1846.707353][   T73]      netlink_rcv_skb+0x130/0x360
[ 1846.707353][   T73]      netlink_unicast+0x449/0x710
[ 1846.707353][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1846.707353][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1846.707353][   T73]      ___sys_sendmsg+0xee/0x170
[ 1846.707353][   T73]      __sys_sendmsg+0xcd/0x170
[ 1846.707353][   T73]      do_syscall_64+0xc6/0x1e0
[ 1846.707353][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1846.707353][   T73] 
[ 1846.709123][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1846.709123][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1846.709123][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1846.709123][   T73]      ipv6_find_idev+0x102/0x170
[ 1846.709123][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1846.709123][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1846.709123][   T73]      netlink_rcv_skb+0x130/0x360
[ 1846.709123][   T73]      netlink_unicast+0x449/0x710
[ 1846.709123][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1846.709123][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1846.709123][   T73]      ___sys_sendmsg+0xee/0x170
[ 1846.709123][   T73]      __sys_sendmsg+0xcd/0x170
[ 1846.709123][   T73]      do_syscall_64+0xc6/0x1e0
[ 1846.709123][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1846.709123][   T73] 
[ 1846.710979][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1846.711248][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1846.711248][   T73]      netdev_get_by_index+0x5e/0x80
[ 1846.711248][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1846.711248][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1846.711248][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1846.711248][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1846.711248][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1846.711248][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1846.711248][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1846.711248][   T73]      addrconf_dad_begin+0x310/0x670
[ 1846.711248][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1846.711248][   T73]      process_one_work+0x84d/0x18a0
[ 1846.711248][   T73]      worker_thread+0x587/0xd30
[ 1846.711248][   T73]      kthread+0x28a/0x350
[ 1846.711248][   T73]      ret_from_fork+0x31/0x70
[ 1846.711248][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1846.711248][   T73] 
[ 1846.713400][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1846.713400][   T73]      netdev_get_by_index+0x5e/0x80
[ 1846.713400][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1846.713400][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1846.713400][   T73]      ip6_route_add+0x1c/0x140
[ 1846.713400][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1846.713400][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1846.713400][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1846.713400][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1846.713400][   T73]      netlink_rcv_skb+0x130/0x360
[ 1846.713400][   T73]      netlink_unicast+0x449/0x710
[ 1846.713400][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1846.713400][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1846.713400][   T73]      ___sys_sendmsg+0xee/0x170
[ 1846.713400][   T73]      __sys_sendmsg+0xcd/0x170
[ 1846.713400][   T73]      do_syscall_64+0xc6/0x1e0
[ 1846.713400][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1846.713400][   T73] 
[ 1846.715632][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1846.715632][   T73]      netdev_get_by_index+0x5e/0x80
[ 1846.715632][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1846.715632][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1846.715632][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1846.715632][   T73]      ipv6_add_addr+0x411/0x2000
[ 1846.715632][   T73]      inet6_addr_add+0x30e/0xa40
[ 1846.715632][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1846.715632][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1846.715632][   T73]      netlink_rcv_skb+0x130/0x360
[ 1846.715632][   T73]      netlink_unicast+0x449/0x710
[ 1846.715632][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1846.715632][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1846.715632][   T73]      ___sys_sendmsg+0xee/0x170
[ 1846.715632][   T73]      __sys_sendmsg+0xcd/0x170
[ 1846.715632][   T73]      do_syscall_64+0xc6/0x1e0
[ 1846.715632][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1846.715632][   T73] 
[ 1846.718292][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1846.718292][   T73]      netdev_get_by_index+0x5e/0x80
[ 1846.718292][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1846.718292][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1846.718292][   T73]      ip6_route_add+0x1c/0x140
[ 1846.718292][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1846.718292][   T73]      addrconf_add_dev+0xe2/0x170
[ 1846.718292][   T73]      inet6_addr_add+0x12f/0xa40
[ 1846.718292][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1846.718292][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1846.718292][   T73]      netlink_rcv_skb+0x130/0x360
[ 1846.718292][   T73]      netlink_unicast+0x449/0x710
[ 1846.718292][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1846.718292][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1846.718292][   T73]      ___sys_sendmsg+0xee/0x170
[ 1846.718292][   T73]      __sys_sendmsg+0xcd/0x170
[ 1846.718292][   T73]      do_syscall_64+0xc6/0x1e0
[ 1846.718292][   T73] 
[ 1846.720556][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1846.720556][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1846.720556][   T73]      ipv6_find_idev+0x102/0x170
[ 1846.720556][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1846.720556][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1846.720556][   T73]      netlink_rcv_skb+0x130/0x360
[ 1846.720556][   T73]      netlink_unicast+0x449/0x710
[ 1846.720556][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1846.720556][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1846.720556][   T73]      ___sys_sendmsg+0xee/0x170
[ 1846.720556][   T73]      __sys_sendmsg+0xcd/0x170
[ 1846.720556][   T73]      do_syscall_64+0xc6/0x1e0
[ 1846.720556][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1846.720556][   T73] 
[ 1846.722216][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1846.722216][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1846.722216][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1846.722216][   T73]      ipv6_find_idev+0x102/0x170
[ 1846.722216][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1846.722216][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1846.722216][   T73]      netlink_rcv_skb+0x130/0x360
[ 1846.722216][   T73]      netlink_unicast+0x449/0x710
[ 1846.722216][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1846.722216][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1846.722216][   T73]      ___sys_sendmsg+0xee/0x170
[ 1846.722216][   T73]      __sys_sendmsg+0xcd/0x170
[ 1846.722216][   T73]      do_syscall_64+0xc6/0x1e0
[ 1846.722216][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1846.722216][   T73] 
[ 1856.959851][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1856.960359][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1856.960359][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1856.960359][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1856.960359][   T73]      fib6_nh_init+0xa22/0x1580
[ 1856.960359][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1856.960359][   T73]      ip6_route_add+0x1c/0x140
[ 1856.960359][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1856.960359][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1856.960359][   T73]      netlink_rcv_skb+0x130/0x360
[ 1856.960359][   T73]      netlink_unicast+0x449/0x710
[ 1856.960359][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1856.960359][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1856.960359][   T73]      ___sys_sendmsg+0xee/0x170
[ 1856.960359][   T73]      __sys_sendmsg+0xcd/0x170
[ 1856.960359][   T73]      do_syscall_64+0xc6/0x1e0
[ 1856.960359][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1856.960359][   T73] 
[ 1856.962290][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1856.962290][   T73]      dst_init+0x84/0x4a0
[ 1856.962290][   T73]      dst_alloc+0x97/0x150
[ 1856.962290][   T73]      ip6_dst_alloc+0x23/0x90
[ 1856.962290][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1856.962290][   T73]      ip6_pol_route+0x56f/0x840
[ 1856.962290][   T73]      fib6_rule_lookup+0x456/0x630
[ 1856.962290][   T73]      ip6_route_input+0x59c/0xa50
[ 1856.962290][   T73]      ipv6_rcv+0x397/0x810
[ 1856.962290][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1856.962290][   T73]      process_backlog+0x101/0x620
[ 1856.962290][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1856.962290][   T73]      net_rx_action+0x495/0xbe0
[ 1856.962290][   T73]      __do_softirq+0x1b5/0x7f6
[ 1856.962290][   T73] 
[ 1856.963949][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1856.963949][   T73]      netdev_get_by_index+0x5e/0x80
[ 1856.963949][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1856.963949][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1856.963949][   T73]      ip6_route_add+0x1c/0x140
[ 1856.963949][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1856.963949][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1856.963949][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1856.963949][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1856.963949][   T73]      netlink_rcv_skb+0x130/0x360
[ 1856.963949][   T73]      netlink_unicast+0x449/0x710
[ 1856.963949][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1856.963949][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1856.963949][   T73]      ___sys_sendmsg+0xee/0x170
[ 1856.963949][   T73]      __sys_sendmsg+0xcd/0x170
[ 1856.963949][   T73]      do_syscall_64+0xc6/0x1e0
[ 1856.963949][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1856.963949][   T73] 
[ 1856.965984][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1856.965984][   T73]      netdev_get_by_index+0x5e/0x80
[ 1856.965984][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1856.965984][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1856.965984][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1856.965984][   T73]      ipv6_add_addr+0x411/0x2000
[ 1856.965984][   T73]      inet6_addr_add+0x30e/0xa40
[ 1856.965984][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1856.965984][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1856.965984][   T73]      netlink_rcv_skb+0x130/0x360
[ 1856.965984][   T73]      netlink_unicast+0x449/0x710
[ 1856.965984][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1856.965984][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1856.965984][   T73]      ___sys_sendmsg+0xee/0x170
[ 1856.965984][   T73]      __sys_sendmsg+0xcd/0x170
[ 1856.965984][   T73]      do_syscall_64+0xc6/0x1e0
[ 1856.965984][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1856.965984][   T73] 
[ 1856.968026][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1856.968026][   T73]      netdev_get_by_index+0x5e/0x80
[ 1856.968026][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1856.968026][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1856.968026][   T73]      ip6_route_add+0x1c/0x140
[ 1856.968026][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1856.968026][   T73]      addrconf_add_dev+0xe2/0x170
[ 1856.968026][   T73]      inet6_addr_add+0x12f/0xa40
[ 1856.968026][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1856.968026][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1856.968026][   T73]      netlink_rcv_skb+0x130/0x360
[ 1856.968026][   T73]      netlink_unicast+0x449/0x710
[ 1856.968026][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1856.968026][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1856.968026][   T73]      ___sys_sendmsg+0xee/0x170
[ 1856.968026][   T73]      __sys_sendmsg+0xcd/0x170
[ 1856.968026][   T73]      do_syscall_64+0xc6/0x1e0
[ 1856.968026][   T73] 
[ 1856.970014][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1856.970014][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1856.970014][   T73]      ipv6_find_idev+0x102/0x170
[ 1856.970014][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1856.970014][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1856.970014][   T73]      netlink_rcv_skb+0x130/0x360
[ 1856.970014][   T73]      netlink_unicast+0x449/0x710
[ 1856.970014][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1856.970014][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1856.970014][   T73]      ___sys_sendmsg+0xee/0x170
[ 1856.970014][   T73]      __sys_sendmsg+0xcd/0x170
[ 1856.970014][   T73]      do_syscall_64+0xc6/0x1e0
[ 1856.970014][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1856.970014][   T73] 
[ 1856.971569][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1856.971569][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1856.971569][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1856.971569][   T73]      ipv6_find_idev+0x102/0x170
[ 1856.971569][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1856.971569][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1856.971569][   T73]      netlink_rcv_skb+0x130/0x360
[ 1856.971569][   T73]      netlink_unicast+0x449/0x710
[ 1856.971569][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1856.971569][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1856.971569][   T73]      ___sys_sendmsg+0xee/0x170
[ 1856.971569][   T73]      __sys_sendmsg+0xcd/0x170
[ 1856.971569][   T73]      do_syscall_64+0xc6/0x1e0
[ 1856.971569][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1856.971569][   T73] 
[ 1856.973306][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1856.973592][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1856.973592][   T73]      netdev_get_by_index+0x5e/0x80
[ 1856.973592][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1856.973592][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1856.973592][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1856.973592][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1856.973592][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1856.973592][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1856.973592][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1856.973592][   T73]      addrconf_dad_begin+0x310/0x670
[ 1856.973592][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1856.973592][   T73]      process_one_work+0x84d/0x18a0
[ 1856.973592][   T73]      worker_thread+0x587/0xd30
[ 1856.973592][   T73]      kthread+0x28a/0x350
[ 1856.973592][   T73]      ret_from_fork+0x31/0x70
[ 1856.973592][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1856.973592][   T73] 
[ 1856.975520][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1856.975520][   T73]      netdev_get_by_index+0x5e/0x80
[ 1856.975520][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1856.975520][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1856.975520][   T73]      ip6_route_add+0x1c/0x140
[ 1856.975520][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1856.975520][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1856.975520][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1856.975520][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1856.975520][   T73]      netlink_rcv_skb+0x130/0x360
[ 1856.975520][   T73]      netlink_unicast+0x449/0x710
[ 1856.975520][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1856.975520][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1856.975520][   T73]      ___sys_sendmsg+0xee/0x170
[ 1856.975520][   T73]      __sys_sendmsg+0xcd/0x170
[ 1856.975520][   T73]      do_syscall_64+0xc6/0x1e0
[ 1856.975520][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1856.975520][   T73] 
[ 1856.977543][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1856.977543][   T73]      netdev_get_by_index+0x5e/0x80
[ 1856.977543][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1856.977543][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1856.977543][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1856.977543][   T73]      ipv6_add_addr+0x411/0x2000
[ 1856.977543][   T73]      inet6_addr_add+0x30e/0xa40
[ 1856.977543][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1856.977543][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1856.977543][   T73]      netlink_rcv_skb+0x130/0x360
[ 1856.977543][   T73]      netlink_unicast+0x449/0x710
[ 1856.977543][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1856.977543][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1856.977543][   T73]      ___sys_sendmsg+0xee/0x170
[ 1856.977543][   T73]      __sys_sendmsg+0xcd/0x170
[ 1856.977543][   T73]      do_syscall_64+0xc6/0x1e0
[ 1856.977543][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1856.977543][   T73] 
[ 1856.979571][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1856.979571][   T73]      netdev_get_by_index+0x5e/0x80
[ 1856.979571][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1856.979571][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1856.979571][   T73]      ip6_route_add+0x1c/0x140
[ 1856.979571][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1856.979571][   T73]      addrconf_add_dev+0xe2/0x170
[ 1856.979571][   T73]      inet6_addr_add+0x12f/0xa40
[ 1856.979571][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1856.979571][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1856.979571][   T73]      netlink_rcv_skb+0x130/0x360
[ 1856.979571][   T73]      netlink_unicast+0x449/0x710
[ 1856.979571][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1856.979571][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1856.979571][   T73]      ___sys_sendmsg+0xee/0x170
[ 1856.979571][   T73]      __sys_sendmsg+0xcd/0x170
[ 1856.979571][   T73]      do_syscall_64+0xc6/0x1e0
[ 1856.979571][   T73] 
[ 1856.981554][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1856.981554][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1856.981554][   T73]      ipv6_find_idev+0x102/0x170
[ 1856.981554][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1856.981554][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1856.981554][   T73]      netlink_rcv_skb+0x130/0x360
[ 1856.981554][   T73]      netlink_unicast+0x449/0x710
[ 1856.981554][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1856.981554][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1856.981554][   T73]      ___sys_sendmsg+0xee/0x170
[ 1856.981554][   T73]      __sys_sendmsg+0xcd/0x170
[ 1856.981554][   T73]      do_syscall_64+0xc6/0x1e0
[ 1856.981554][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1856.981554][   T73] 
[ 1856.983109][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1856.983109][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1856.983109][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1856.983109][   T73]      ipv6_find_idev+0x102/0x170
[ 1856.983109][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1856.983109][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1856.983109][   T73]      netlink_rcv_skb+0x130/0x360
[ 1856.983109][   T73]      netlink_unicast+0x449/0x710
[ 1856.983109][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1856.983109][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1856.983109][   T73]      ___sys_sendmsg+0xee/0x170
[ 1856.983109][   T73]      __sys_sendmsg+0xcd/0x170
[ 1856.983109][   T73]      do_syscall_64+0xc6/0x1e0
[ 1856.983109][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1856.983109][   T73] 
[ 1856.984821][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1856.985097][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1856.985097][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1856.985097][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1856.985097][   T73]      fib6_nh_init+0xa22/0x1580
[ 1856.985097][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1856.985097][   T73]      ip6_route_add+0x1c/0x140
[ 1856.985097][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1856.985097][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1856.985097][   T73]      netlink_rcv_skb+0x130/0x360
[ 1856.985097][   T73]      netlink_unicast+0x449/0x710
[ 1856.985097][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1856.985097][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1856.985097][   T73]      ___sys_sendmsg+0xee/0x170
[ 1856.985097][   T73]      __sys_sendmsg+0xcd/0x170
[ 1856.985097][   T73]      do_syscall_64+0xc6/0x1e0
[ 1856.985097][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1856.985097][   T73] 
[ 1856.987190][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1856.987190][   T73]      dst_init+0x84/0x4a0
[ 1856.987190][   T73]      dst_alloc+0x97/0x150
[ 1856.987190][   T73]      ip6_dst_alloc+0x23/0x90
[ 1856.987190][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1856.987190][   T73]      ip6_pol_route+0x56f/0x840
[ 1856.987190][   T73]      fib6_rule_lookup+0x456/0x630
[ 1856.987190][   T73]      ip6_route_input+0x59c/0xa50
[ 1856.987190][   T73]      ipv6_rcv+0x397/0x810
[ 1856.987190][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1856.987190][   T73]      process_backlog+0x101/0x620
[ 1856.987190][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1856.987190][   T73]      net_rx_action+0x495/0xbe0
[ 1856.987190][   T73]      __do_softirq+0x1b5/0x7f6
[ 1856.987190][   T73] 
[ 1856.989019][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1856.989019][   T73]      netdev_get_by_index+0x5e/0x80
[ 1856.989019][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1856.989019][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1856.989019][   T73]      ip6_route_add+0x1c/0x140
[ 1856.989019][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1856.989019][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1856.989019][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1856.989019][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1856.989019][   T73]      netlink_rcv_skb+0x130/0x360
[ 1856.989019][   T73]      netlink_unicast+0x449/0x710
[ 1856.989019][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1856.989019][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1856.989019][   T73]      ___sys_sendmsg+0xee/0x170
[ 1856.989019][   T73]      __sys_sendmsg+0xcd/0x170
[ 1856.989019][   T73]      do_syscall_64+0xc6/0x1e0
[ 1856.989019][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1856.989019][   T73] 
[ 1856.991280][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1856.991280][   T73]      netdev_get_by_index+0x5e/0x80
[ 1856.991280][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1856.991280][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1856.991280][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1856.991280][   T73]      ipv6_add_addr+0x411/0x2000
[ 1856.991280][   T73]      inet6_addr_add+0x30e/0xa40
[ 1856.991280][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1856.991280][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1856.991280][   T73]      netlink_rcv_skb+0x130/0x360
[ 1856.991280][   T73]      netlink_unicast+0x449/0x710
[ 1856.991280][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1856.991280][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1856.991280][   T73]      ___sys_sendmsg+0xee/0x170
[ 1856.991280][   T73]      __sys_sendmsg+0xcd/0x170
[ 1856.991280][   T73]      do_syscall_64+0xc6/0x1e0
[ 1856.991280][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1856.991280][   T73] 
[ 1856.993599][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1856.993599][   T73]      netdev_get_by_index+0x5e/0x80
[ 1856.993599][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1856.993599][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1856.993599][   T73]      ip6_route_add+0x1c/0x140
[ 1856.993599][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1856.993599][   T73]      addrconf_add_dev+0xe2/0x170
[ 1856.993599][   T73]      inet6_addr_add+0x12f/0xa40
[ 1856.993599][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1856.993599][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1856.993599][   T73]      netlink_rcv_skb+0x130/0x360
[ 1856.993599][   T73]      netlink_unicast+0x449/0x710
[ 1856.993599][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1856.993599][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1856.993599][   T73]      ___sys_sendmsg+0xee/0x170
[ 1856.993599][   T73]      __sys_sendmsg+0xcd/0x170
[ 1856.993599][   T73]      do_syscall_64+0xc6/0x1e0
[ 1856.993599][   T73] 
[ 1856.995764][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1856.995764][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1856.995764][   T73]      ipv6_find_idev+0x102/0x170
[ 1856.995764][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1856.995764][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1856.995764][   T73]      netlink_rcv_skb+0x130/0x360
[ 1856.995764][   T73]      netlink_unicast+0x449/0x710
[ 1856.995764][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1856.995764][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1856.995764][   T73]      ___sys_sendmsg+0xee/0x170
[ 1856.995764][   T73]      __sys_sendmsg+0xcd/0x170
[ 1856.995764][   T73]      do_syscall_64+0xc6/0x1e0
[ 1856.995764][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1856.995764][   T73] 
[ 1856.997528][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1856.997528][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1856.997528][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1856.997528][   T73]      ipv6_find_idev+0x102/0x170
[ 1856.997528][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1856.997528][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1856.997528][   T73]      netlink_rcv_skb+0x130/0x360
[ 1856.997528][   T73]      netlink_unicast+0x449/0x710
[ 1856.997528][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1856.997528][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1856.997528][   T73]      ___sys_sendmsg+0xee/0x170
[ 1856.997528][   T73]      __sys_sendmsg+0xcd/0x170
[ 1856.997528][   T73]      do_syscall_64+0xc6/0x1e0
[ 1856.997528][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1856.997528][   T73] 
[ 1856.999482][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1856.999771][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1856.999771][   T73]      netdev_get_by_index+0x5e/0x80
[ 1856.999771][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1856.999771][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1856.999771][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1856.999771][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1856.999771][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1856.999771][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1856.999771][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1856.999771][   T73]      addrconf_dad_begin+0x310/0x670
[ 1856.999771][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1856.999771][   T73]      process_one_work+0x84d/0x18a0
[ 1856.999771][   T73]      worker_thread+0x587/0xd30
[ 1856.999771][   T73]      kthread+0x28a/0x350
[ 1856.999771][   T73]      ret_from_fork+0x31/0x70
[ 1856.999771][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1856.999771][   T73] 
[ 1857.001940][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1857.001940][   T73]      netdev_get_by_index+0x5e/0x80
[ 1857.001940][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1857.001940][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1857.001940][   T73]      ip6_route_add+0x1c/0x140
[ 1857.001940][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1857.001940][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1857.001940][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1857.001940][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1857.001940][   T73]      netlink_rcv_skb+0x130/0x360
[ 1857.001940][   T73]      netlink_unicast+0x449/0x710
[ 1857.001940][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1857.001940][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1857.001940][   T73]      ___sys_sendmsg+0xee/0x170
[ 1857.001940][   T73]      __sys_sendmsg+0xcd/0x170
[ 1857.001940][   T73]      do_syscall_64+0xc6/0x1e0
[ 1857.001940][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1857.001940][   T73] 
[ 1857.004198][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1857.004198][   T73]      netdev_get_by_index+0x5e/0x80
[ 1857.004198][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1857.004198][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1857.004198][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1857.004198][   T73]      ipv6_add_addr+0x411/0x2000
[ 1857.004198][   T73]      inet6_addr_add+0x30e/0xa40
[ 1857.004198][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1857.004198][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1857.004198][   T73]      netlink_rcv_skb+0x130/0x360
[ 1857.004198][   T73]      netlink_unicast+0x449/0x710
[ 1857.004198][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1857.004198][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1857.004198][   T73]      ___sys_sendmsg+0xee/0x170
[ 1857.004198][   T73]      __sys_sendmsg+0xcd/0x170
[ 1857.004198][   T73]      do_syscall_64+0xc6/0x1e0
[ 1857.004198][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1857.004198][   T73] 
[ 1857.006473][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1857.006473][   T73]      netdev_get_by_index+0x5e/0x80
[ 1857.006473][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1857.006473][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1857.006473][   T73]      ip6_route_add+0x1c/0x140
[ 1857.006473][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1857.006473][   T73]      addrconf_add_dev+0xe2/0x170
[ 1857.006473][   T73]      inet6_addr_add+0x12f/0xa40
[ 1857.006473][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1857.006473][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1857.006473][   T73]      netlink_rcv_skb+0x130/0x360
[ 1857.006473][   T73]      netlink_unicast+0x449/0x710
[ 1857.006473][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1857.006473][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1857.006473][   T73]      ___sys_sendmsg+0xee/0x170
[ 1857.006473][   T73]      __sys_sendmsg+0xcd/0x170
[ 1857.006473][   T73]      do_syscall_64+0xc6/0x1e0
[ 1857.006473][   T73] 
[ 1857.008698][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1857.008698][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1857.008698][   T73]      ipv6_find_idev+0x102/0x170
[ 1857.008698][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1857.008698][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1857.008698][   T73]      netlink_rcv_skb+0x130/0x360
[ 1857.008698][   T73]      netlink_unicast+0x449/0x710
[ 1857.008698][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1857.008698][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1857.008698][   T73]      ___sys_sendmsg+0xee/0x170
[ 1857.008698][   T73]      __sys_sendmsg+0xcd/0x170
[ 1857.008698][   T73]      do_syscall_64+0xc6/0x1e0
[ 1857.008698][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1857.008698][   T73] 
[ 1857.010432][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1857.010432][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1857.010432][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1857.010432][   T73]      ipv6_find_idev+0x102/0x170
[ 1857.010432][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1857.010432][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1857.010432][   T73]      netlink_rcv_skb+0x130/0x360
[ 1857.010432][   T73]      netlink_unicast+0x449/0x710
[ 1857.010432][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1857.010432][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1857.010432][   T73]      ___sys_sendmsg+0xee/0x170
[ 1857.010432][   T73]      __sys_sendmsg+0xcd/0x170
[ 1857.010432][   T73]      do_syscall_64+0xc6/0x1e0
[ 1857.010432][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1857.010432][   T73] 
[ 1867.127704][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1867.128299][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1867.128299][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1867.128299][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1867.128299][   T73]      fib6_nh_init+0xa22/0x1580
[ 1867.128299][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1867.128299][   T73]      ip6_route_add+0x1c/0x140
[ 1867.128299][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1867.128299][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1867.128299][   T73]      netlink_rcv_skb+0x130/0x360
[ 1867.128299][   T73]      netlink_unicast+0x449/0x710
[ 1867.128299][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1867.128299][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1867.128299][   T73]      ___sys_sendmsg+0xee/0x170
[ 1867.128299][   T73]      __sys_sendmsg+0xcd/0x170
[ 1867.128299][   T73]      do_syscall_64+0xc6/0x1e0
[ 1867.128299][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1867.128299][   T73] 
[ 1867.130998][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1867.130998][   T73]      dst_init+0x84/0x4a0
[ 1867.130998][   T73]      dst_alloc+0x97/0x150
[ 1867.130998][   T73]      ip6_dst_alloc+0x23/0x90
[ 1867.130998][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1867.130998][   T73]      ip6_pol_route+0x56f/0x840
[ 1867.130998][   T73]      fib6_rule_lookup+0x456/0x630
[ 1867.130998][   T73]      ip6_route_input+0x59c/0xa50
[ 1867.130998][   T73]      ipv6_rcv+0x397/0x810
[ 1867.130998][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1867.130998][   T73]      process_backlog+0x101/0x620
[ 1867.130998][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1867.130998][   T73]      net_rx_action+0x495/0xbe0
[ 1867.130998][   T73]      __do_softirq+0x1b5/0x7f6
[ 1867.130998][   T73] 
[ 1867.133853][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1867.133853][   T73]      netdev_get_by_index+0x5e/0x80
[ 1867.133853][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1867.133853][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1867.133853][   T73]      ip6_route_add+0x1c/0x140
[ 1867.133853][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1867.133853][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1867.133853][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1867.133853][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1867.133853][   T73]      netlink_rcv_skb+0x130/0x360
[ 1867.133853][   T73]      netlink_unicast+0x449/0x710
[ 1867.133853][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1867.133853][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1867.133853][   T73]      ___sys_sendmsg+0xee/0x170
[ 1867.133853][   T73]      __sys_sendmsg+0xcd/0x170
[ 1867.133853][   T73]      do_syscall_64+0xc6/0x1e0
[ 1867.133853][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1867.133853][   T73] 
[ 1867.137336][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1867.137336][   T73]      netdev_get_by_index+0x5e/0x80
[ 1867.137336][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1867.137336][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1867.137336][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1867.137336][   T73]      ipv6_add_addr+0x411/0x2000
[ 1867.137336][   T73]      inet6_addr_add+0x30e/0xa40
[ 1867.137336][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1867.137336][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1867.137336][   T73]      netlink_rcv_skb+0x130/0x360
[ 1867.137336][   T73]      netlink_unicast+0x449/0x710
[ 1867.137336][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1867.137336][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1867.137336][   T73]      ___sys_sendmsg+0xee/0x170
[ 1867.137336][   T73]      __sys_sendmsg+0xcd/0x170
[ 1867.137336][   T73]      do_syscall_64+0xc6/0x1e0
[ 1867.137336][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1867.137336][   T73] 
[ 1867.140813][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1867.140813][   T73]      netdev_get_by_index+0x5e/0x80
[ 1867.140813][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1867.140813][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1867.140813][   T73]      ip6_route_add+0x1c/0x140
[ 1867.140813][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1867.140813][   T73]      addrconf_add_dev+0xe2/0x170
[ 1867.140813][   T73]      inet6_addr_add+0x12f/0xa40
[ 1867.140813][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1867.140813][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1867.140813][   T73]      netlink_rcv_skb+0x130/0x360
[ 1867.140813][   T73]      netlink_unicast+0x449/0x710
[ 1867.140813][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1867.140813][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1867.140813][   T73]      ___sys_sendmsg+0xee/0x170
[ 1867.140813][   T73]      __sys_sendmsg+0xcd/0x170
[ 1867.140813][   T73]      do_syscall_64+0xc6/0x1e0
[ 1867.140813][   T73] 
[ 1867.144218][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1867.144218][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1867.144218][   T73]      ipv6_find_idev+0x102/0x170
[ 1867.144218][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1867.144218][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1867.144218][   T73]      netlink_rcv_skb+0x130/0x360
[ 1867.144218][   T73]      netlink_unicast+0x449/0x710
[ 1867.144218][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1867.144218][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1867.144218][   T73]      ___sys_sendmsg+0xee/0x170
[ 1867.144218][   T73]      __sys_sendmsg+0xcd/0x170
[ 1867.144218][   T73]      do_syscall_64+0xc6/0x1e0
[ 1867.144218][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1867.144218][   T73] 
[ 1867.147942][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1867.147942][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1867.147942][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1867.147942][   T73]      ipv6_find_idev+0x102/0x170
[ 1867.147942][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1867.147942][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1867.147942][   T73]      netlink_rcv_skb+0x130/0x360
[ 1867.147942][   T73]      netlink_unicast+0x449/0x710
[ 1867.147942][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1867.147942][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1867.147942][   T73]      ___sys_sendmsg+0xee/0x170
[ 1867.147942][   T73]      __sys_sendmsg+0xcd/0x170
[ 1867.147942][   T73]      do_syscall_64+0xc6/0x1e0
[ 1867.147942][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1867.147942][   T73] 
[ 1867.150880][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1867.151358][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1867.151358][   T73]      netdev_get_by_index+0x5e/0x80
[ 1867.151358][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1867.151358][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1867.151358][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1867.151358][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1867.151358][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1867.151358][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1867.151358][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1867.151358][   T73]      addrconf_dad_begin+0x310/0x670
[ 1867.151358][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1867.151358][   T73]      process_one_work+0x84d/0x18a0
[ 1867.151358][   T73]      worker_thread+0x587/0xd30
[ 1867.151358][   T73]      kthread+0x28a/0x350
[ 1867.151358][   T73]      ret_from_fork+0x31/0x70
[ 1867.151358][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1867.151358][   T73] 
[ 1867.154672][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1867.154672][   T73]      netdev_get_by_index+0x5e/0x80
[ 1867.154672][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1867.154672][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1867.154672][   T73]      ip6_route_add+0x1c/0x140
[ 1867.154672][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1867.154672][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1867.154672][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1867.154672][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1867.154672][   T73]      netlink_rcv_skb+0x130/0x360
[ 1867.154672][   T73]      netlink_unicast+0x449/0x710
[ 1867.154672][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1867.154672][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1867.154672][   T73]      ___sys_sendmsg+0xee/0x170
[ 1867.154672][   T73]      __sys_sendmsg+0xcd/0x170
[ 1867.154672][   T73]      do_syscall_64+0xc6/0x1e0
[ 1867.154672][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1867.154672][   T73] 
[ 1867.158142][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1867.158142][   T73]      netdev_get_by_index+0x5e/0x80
[ 1867.158142][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1867.158142][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1867.158142][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1867.158142][   T73]      ipv6_add_addr+0x411/0x2000
[ 1867.158142][   T73]      inet6_addr_add+0x30e/0xa40
[ 1867.158142][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1867.158142][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1867.158142][   T73]      netlink_rcv_skb+0x130/0x360
[ 1867.158142][   T73]      netlink_unicast+0x449/0x710
[ 1867.158142][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1867.158142][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1867.158142][   T73]      ___sys_sendmsg+0xee/0x170
[ 1867.158142][   T73]      __sys_sendmsg+0xcd/0x170
[ 1867.158142][   T73]      do_syscall_64+0xc6/0x1e0
[ 1867.158142][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1867.158142][   T73] 
[ 1867.162052][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1867.162052][   T73]      netdev_get_by_index+0x5e/0x80
[ 1867.162052][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1867.162052][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1867.162052][   T73]      ip6_route_add+0x1c/0x140
[ 1867.162052][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1867.162052][   T73]      addrconf_add_dev+0xe2/0x170
[ 1867.162052][   T73]      inet6_addr_add+0x12f/0xa40
[ 1867.162052][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1867.162052][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1867.162052][   T73]      netlink_rcv_skb+0x130/0x360
[ 1867.162052][   T73]      netlink_unicast+0x449/0x710
[ 1867.162052][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1867.162052][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1867.162052][   T73]      ___sys_sendmsg+0xee/0x170
[ 1867.162052][   T73]      __sys_sendmsg+0xcd/0x170
[ 1867.162052][   T73]      do_syscall_64+0xc6/0x1e0
[ 1867.162052][   T73] 
[ 1867.165453][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1867.165453][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1867.165453][   T73]      ipv6_find_idev+0x102/0x170
[ 1867.165453][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1867.165453][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1867.165453][   T73]      netlink_rcv_skb+0x130/0x360
[ 1867.165453][   T73]      netlink_unicast+0x449/0x710
[ 1867.165453][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1867.165453][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1867.165453][   T73]      ___sys_sendmsg+0xee/0x170
[ 1867.165453][   T73]      __sys_sendmsg+0xcd/0x170
[ 1867.165453][   T73]      do_syscall_64+0xc6/0x1e0
[ 1867.165453][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1867.165453][   T73] 
[ 1867.168124][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1867.168124][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1867.168124][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1867.168124][   T73]      ipv6_find_idev+0x102/0x170
[ 1867.168124][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1867.168124][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1867.168124][   T73]      netlink_rcv_skb+0x130/0x360
[ 1867.168124][   T73]      netlink_unicast+0x449/0x710
[ 1867.168124][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1867.168124][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1867.168124][   T73]      ___sys_sendmsg+0xee/0x170
[ 1867.168124][   T73]      __sys_sendmsg+0xcd/0x170
[ 1867.168124][   T73]      do_syscall_64+0xc6/0x1e0
[ 1867.168124][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1867.168124][   T73] 
[ 1867.171091][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1867.171551][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1867.171551][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1867.171551][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1867.171551][   T73]      fib6_nh_init+0xa22/0x1580
[ 1867.171551][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1867.171551][   T73]      ip6_route_add+0x1c/0x140
[ 1867.171551][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1867.171551][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1867.171551][   T73]      netlink_rcv_skb+0x130/0x360
[ 1867.171551][   T73]      netlink_unicast+0x449/0x710
[ 1867.171551][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1867.171551][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1867.171551][   T73]      ___sys_sendmsg+0xee/0x170
[ 1867.171551][   T73]      __sys_sendmsg+0xcd/0x170
[ 1867.171551][   T73]      do_syscall_64+0xc6/0x1e0
[ 1867.171551][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1867.171551][   T73] 
[ 1867.175156][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1867.175156][   T73]      dst_init+0x84/0x4a0
[ 1867.175156][   T73]      dst_alloc+0x97/0x150
[ 1867.175156][   T73]      ip6_dst_alloc+0x23/0x90
[ 1867.175156][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1867.175156][   T73]      ip6_pol_route+0x56f/0x840
[ 1867.175156][   T73]      fib6_rule_lookup+0x456/0x630
[ 1867.175156][   T73]      ip6_route_input+0x59c/0xa50
[ 1867.175156][   T73]      ipv6_rcv+0x397/0x810
[ 1867.175156][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1867.175156][   T73]      process_backlog+0x101/0x620
[ 1867.175156][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1867.175156][   T73]      net_rx_action+0x495/0xbe0
[ 1867.175156][   T73]      __do_softirq+0x1b5/0x7f6
[ 1867.175156][   T73] 
[ 1867.178463][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1867.178463][   T73]      netdev_get_by_index+0x5e/0x80
[ 1867.178463][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1867.178463][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1867.178463][   T73]      ip6_route_add+0x1c/0x140
[ 1867.178463][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1867.178463][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1867.178463][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1867.178463][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1867.178463][   T73]      netlink_rcv_skb+0x130/0x360
[ 1867.178463][   T73]      netlink_unicast+0x449/0x710
[ 1867.178463][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1867.178463][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1867.178463][   T73]      ___sys_sendmsg+0xee/0x170
[ 1867.178463][   T73]      __sys_sendmsg+0xcd/0x170
[ 1867.178463][   T73]      do_syscall_64+0xc6/0x1e0
[ 1867.178463][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1867.178463][   T73] 
[ 1867.182377][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1867.182377][   T73]      netdev_get_by_index+0x5e/0x80
[ 1867.182377][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1867.182377][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1867.182377][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1867.182377][   T73]      ipv6_add_addr+0x411/0x2000
[ 1867.182377][   T73]      inet6_addr_add+0x30e/0xa40
[ 1867.182377][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1867.182377][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1867.182377][   T73]      netlink_rcv_skb+0x130/0x360
[ 1867.182377][   T73]      netlink_unicast+0x449/0x710
[ 1867.182377][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1867.182377][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1867.182377][   T73]      ___sys_sendmsg+0xee/0x170
[ 1867.182377][   T73]      __sys_sendmsg+0xcd/0x170
[ 1867.182377][   T73]      do_syscall_64+0xc6/0x1e0
[ 1867.182377][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1867.182377][   T73] 
[ 1867.186306][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1867.186306][   T73]      netdev_get_by_index+0x5e/0x80
[ 1867.186306][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1867.186306][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1867.186306][   T73]      ip6_route_add+0x1c/0x140
[ 1867.186306][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1867.186306][   T73]      addrconf_add_dev+0xe2/0x170
[ 1867.186306][   T73]      inet6_addr_add+0x12f/0xa40
[ 1867.186306][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1867.186306][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1867.186306][   T73]      netlink_rcv_skb+0x130/0x360
[ 1867.186306][   T73]      netlink_unicast+0x449/0x710
[ 1867.186306][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1867.186306][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1867.186306][   T73]      ___sys_sendmsg+0xee/0x170
[ 1867.186306][   T73]      __sys_sendmsg+0xcd/0x170
[ 1867.186306][   T73]      do_syscall_64+0xc6/0x1e0
[ 1867.186306][   T73] 
[ 1867.190046][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1867.190046][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1867.190046][   T73]      ipv6_find_idev+0x102/0x170
[ 1867.190046][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1867.190046][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1867.190046][   T73]      netlink_rcv_skb+0x130/0x360
[ 1867.190046][   T73]      netlink_unicast+0x449/0x710
[ 1867.190046][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1867.190046][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1867.190046][   T73]      ___sys_sendmsg+0xee/0x170
[ 1867.190046][   T73]      __sys_sendmsg+0xcd/0x170
[ 1867.190046][   T73]      do_syscall_64+0xc6/0x1e0
[ 1867.190046][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1867.190046][   T73] 
[ 1867.193173][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1867.193173][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1867.193173][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1867.193173][   T73]      ipv6_find_idev+0x102/0x170
[ 1867.193173][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1867.193173][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1867.193173][   T73]      netlink_rcv_skb+0x130/0x360
[ 1867.193173][   T73]      netlink_unicast+0x449/0x710
[ 1867.193173][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1867.193173][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1867.193173][   T73]      ___sys_sendmsg+0xee/0x170
[ 1867.193173][   T73]      __sys_sendmsg+0xcd/0x170
[ 1867.193173][   T73]      do_syscall_64+0xc6/0x1e0
[ 1867.193173][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1867.193173][   T73] 
[ 1867.196578][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1867.197939][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1867.197939][   T73]      netdev_get_by_index+0x5e/0x80
[ 1867.197939][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1867.197939][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1867.197939][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1867.197939][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1867.197939][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1867.197939][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1867.197939][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1867.197939][   T73]      addrconf_dad_begin+0x310/0x670
[ 1867.197939][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1867.197939][   T73]      process_one_work+0x84d/0x18a0
[ 1867.197939][   T73]      worker_thread+0x587/0xd30
[ 1867.197939][   T73]      kthread+0x28a/0x350
[ 1867.197939][   T73]      ret_from_fork+0x31/0x70
[ 1867.197939][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1867.197939][   T73] 
[ 1867.201237][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1867.201237][   T73]      netdev_get_by_index+0x5e/0x80
[ 1867.201237][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1867.201237][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1867.201237][   T73]      ip6_route_add+0x1c/0x140
[ 1867.201237][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1867.201237][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1867.201237][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1867.201237][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1867.201237][   T73]      netlink_rcv_skb+0x130/0x360
[ 1867.201237][   T73]      netlink_unicast+0x449/0x710
[ 1867.201237][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1867.201237][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1867.201237][   T73]      ___sys_sendmsg+0xee/0x170
[ 1867.201237][   T73]      __sys_sendmsg+0xcd/0x170
[ 1867.201237][   T73]      do_syscall_64+0xc6/0x1e0
[ 1867.201237][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1867.201237][   T73] 
[ 1867.204925][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1867.204925][   T73]      netdev_get_by_index+0x5e/0x80
[ 1867.204925][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1867.204925][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1867.204925][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1867.204925][   T73]      ipv6_add_addr+0x411/0x2000
[ 1867.204925][   T73]      inet6_addr_add+0x30e/0xa40
[ 1867.204925][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1867.204925][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1867.204925][   T73]      netlink_rcv_skb+0x130/0x360
[ 1867.204925][   T73]      netlink_unicast+0x449/0x710
[ 1867.204925][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1867.204925][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1867.204925][   T73]      ___sys_sendmsg+0xee/0x170
[ 1867.204925][   T73]      __sys_sendmsg+0xcd/0x170
[ 1867.204925][   T73]      do_syscall_64+0xc6/0x1e0
[ 1867.204925][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1867.204925][   T73] 
[ 1867.208758][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1867.208758][   T73]      netdev_get_by_index+0x5e/0x80
[ 1867.208758][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1867.208758][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1867.208758][   T73]      ip6_route_add+0x1c/0x140
[ 1867.208758][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1867.208758][   T73]      addrconf_add_dev+0xe2/0x170
[ 1867.208758][   T73]      inet6_addr_add+0x12f/0xa40
[ 1867.208758][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1867.208758][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1867.208758][   T73]      netlink_rcv_skb+0x130/0x360
[ 1867.208758][   T73]      netlink_unicast+0x449/0x710
[ 1867.208758][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1867.208758][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1867.208758][   T73]      ___sys_sendmsg+0xee/0x170
[ 1867.208758][   T73]      __sys_sendmsg+0xcd/0x170
[ 1867.208758][   T73]      do_syscall_64+0xc6/0x1e0
[ 1867.208758][   T73] 
[ 1867.212621][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1867.212621][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1867.212621][   T73]      ipv6_find_idev+0x102/0x170
[ 1867.212621][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1867.212621][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1867.212621][   T73]      netlink_rcv_skb+0x130/0x360
[ 1867.212621][   T73]      netlink_unicast+0x449/0x710
[ 1867.212621][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1867.212621][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1867.212621][   T73]      ___sys_sendmsg+0xee/0x170
[ 1867.212621][   T73]      __sys_sendmsg+0xcd/0x170
[ 1867.212621][   T73]      do_syscall_64+0xc6/0x1e0
[ 1867.212621][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1867.212621][   T73] 
[ 1867.215748][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1867.215748][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1867.215748][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1867.215748][   T73]      ipv6_find_idev+0x102/0x170
[ 1867.215748][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1867.215748][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1867.215748][   T73]      netlink_rcv_skb+0x130/0x360
[ 1867.215748][   T73]      netlink_unicast+0x449/0x710
[ 1867.215748][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1867.215748][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1867.215748][   T73]      ___sys_sendmsg+0xee/0x170
[ 1867.215748][   T73]      __sys_sendmsg+0xcd/0x170
[ 1867.215748][   T73]      do_syscall_64+0xc6/0x1e0
[ 1867.215748][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1867.215748][   T73] 
[ 1877.471747][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1877.472222][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1877.472222][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1877.472222][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1877.472222][   T73]      fib6_nh_init+0xa22/0x1580
[ 1877.472222][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1877.472222][   T73]      ip6_route_add+0x1c/0x140
[ 1877.472222][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1877.472222][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1877.472222][   T73]      netlink_rcv_skb+0x130/0x360
[ 1877.472222][   T73]      netlink_unicast+0x449/0x710
[ 1877.472222][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1877.472222][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1877.472222][   T73]      ___sys_sendmsg+0xee/0x170
[ 1877.472222][   T73]      __sys_sendmsg+0xcd/0x170
[ 1877.472222][   T73]      do_syscall_64+0xc6/0x1e0
[ 1877.472222][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1877.472222][   T73] 
[ 1877.474525][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1877.474525][   T73]      dst_init+0x84/0x4a0
[ 1877.474525][   T73]      dst_alloc+0x97/0x150
[ 1877.474525][   T73]      ip6_dst_alloc+0x23/0x90
[ 1877.474525][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1877.474525][   T73]      ip6_pol_route+0x56f/0x840
[ 1877.474525][   T73]      fib6_rule_lookup+0x456/0x630
[ 1877.474525][   T73]      ip6_route_input+0x59c/0xa50
[ 1877.474525][   T73]      ipv6_rcv+0x397/0x810
[ 1877.474525][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1877.474525][   T73]      process_backlog+0x101/0x620
[ 1877.474525][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1877.474525][   T73]      net_rx_action+0x495/0xbe0
[ 1877.474525][   T73]      __do_softirq+0x1b5/0x7f6
[ 1877.474525][   T73] 
[ 1877.476524][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1877.476524][   T73]      netdev_get_by_index+0x5e/0x80
[ 1877.476524][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1877.476524][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1877.476524][   T73]      ip6_route_add+0x1c/0x140
[ 1877.476524][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1877.476524][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1877.476524][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1877.476524][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1877.476524][   T73]      netlink_rcv_skb+0x130/0x360
[ 1877.476524][   T73]      netlink_unicast+0x449/0x710
[ 1877.476524][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1877.476524][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1877.476524][   T73]      ___sys_sendmsg+0xee/0x170
[ 1877.476524][   T73]      __sys_sendmsg+0xcd/0x170
[ 1877.476524][   T73]      do_syscall_64+0xc6/0x1e0
[ 1877.476524][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1877.476524][   T73] 
[ 1877.478939][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1877.478939][   T73]      netdev_get_by_index+0x5e/0x80
[ 1877.478939][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1877.478939][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1877.478939][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1877.478939][   T73]      ipv6_add_addr+0x411/0x2000
[ 1877.478939][   T73]      inet6_addr_add+0x30e/0xa40
[ 1877.478939][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1877.478939][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1877.478939][   T73]      netlink_rcv_skb+0x130/0x360
[ 1877.478939][   T73]      netlink_unicast+0x449/0x710
[ 1877.478939][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1877.478939][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1877.478939][   T73]      ___sys_sendmsg+0xee/0x170
[ 1877.478939][   T73]      __sys_sendmsg+0xcd/0x170
[ 1877.478939][   T73]      do_syscall_64+0xc6/0x1e0
[ 1877.478939][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1877.478939][   T73] 
[ 1877.481348][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1877.481348][   T73]      netdev_get_by_index+0x5e/0x80
[ 1877.481348][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1877.481348][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1877.481348][   T73]      ip6_route_add+0x1c/0x140
[ 1877.481348][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1877.481348][   T73]      addrconf_add_dev+0xe2/0x170
[ 1877.481348][   T73]      inet6_addr_add+0x12f/0xa40
[ 1877.481348][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1877.481348][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1877.481348][   T73]      netlink_rcv_skb+0x130/0x360
[ 1877.481348][   T73]      netlink_unicast+0x449/0x710
[ 1877.481348][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1877.481348][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1877.481348][   T73]      ___sys_sendmsg+0xee/0x170
[ 1877.481348][   T73]      __sys_sendmsg+0xcd/0x170
[ 1877.481348][   T73]      do_syscall_64+0xc6/0x1e0
[ 1877.481348][   T73] 
[ 1877.483740][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1877.483740][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1877.483740][   T73]      ipv6_find_idev+0x102/0x170
[ 1877.483740][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1877.483740][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1877.483740][   T73]      netlink_rcv_skb+0x130/0x360
[ 1877.483740][   T73]      netlink_unicast+0x449/0x710
[ 1877.483740][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1877.483740][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1877.483740][   T73]      ___sys_sendmsg+0xee/0x170
[ 1877.483740][   T73]      __sys_sendmsg+0xcd/0x170
[ 1877.483740][   T73]      do_syscall_64+0xc6/0x1e0
[ 1877.483740][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1877.483740][   T73] 
[ 1877.485596][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1877.485596][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1877.485596][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1877.485596][   T73]      ipv6_find_idev+0x102/0x170
[ 1877.485596][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1877.485596][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1877.485596][   T73]      netlink_rcv_skb+0x130/0x360
[ 1877.485596][   T73]      netlink_unicast+0x449/0x710
[ 1877.485596][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1877.485596][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1877.485596][   T73]      ___sys_sendmsg+0xee/0x170
[ 1877.485596][   T73]      __sys_sendmsg+0xcd/0x170
[ 1877.485596][   T73]      do_syscall_64+0xc6/0x1e0
[ 1877.485596][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1877.485596][   T73] 
[ 1877.487665][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1877.488000][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1877.488000][   T73]      netdev_get_by_index+0x5e/0x80
[ 1877.488000][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1877.488000][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1877.488000][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1877.488000][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1877.488000][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1877.488000][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1877.488000][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1877.488000][   T73]      addrconf_dad_begin+0x310/0x670
[ 1877.488000][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1877.488000][   T73]      process_one_work+0x84d/0x18a0
[ 1877.488000][   T73]      worker_thread+0x587/0xd30
[ 1877.488000][   T73]      kthread+0x28a/0x350
[ 1877.488000][   T73]      ret_from_fork+0x31/0x70
[ 1877.488000][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1877.488000][   T73] 
[ 1877.490305][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1877.490305][   T73]      netdev_get_by_index+0x5e/0x80
[ 1877.490305][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1877.490305][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1877.490305][   T73]      ip6_route_add+0x1c/0x140
[ 1877.490305][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1877.490305][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1877.490305][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1877.490305][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1877.490305][   T73]      netlink_rcv_skb+0x130/0x360
[ 1877.490305][   T73]      netlink_unicast+0x449/0x710
[ 1877.490305][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1877.490305][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1877.490305][   T73]      ___sys_sendmsg+0xee/0x170
[ 1877.490305][   T73]      __sys_sendmsg+0xcd/0x170
[ 1877.490305][   T73]      do_syscall_64+0xc6/0x1e0
[ 1877.490305][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1877.490305][   T73] 
[ 1877.492730][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1877.492730][   T73]      netdev_get_by_index+0x5e/0x80
[ 1877.492730][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1877.492730][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1877.492730][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1877.492730][   T73]      ipv6_add_addr+0x411/0x2000
[ 1877.492730][   T73]      inet6_addr_add+0x30e/0xa40
[ 1877.492730][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1877.492730][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1877.492730][   T73]      netlink_rcv_skb+0x130/0x360
[ 1877.492730][   T73]      netlink_unicast+0x449/0x710
[ 1877.492730][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1877.492730][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1877.492730][   T73]      ___sys_sendmsg+0xee/0x170
[ 1877.492730][   T73]      __sys_sendmsg+0xcd/0x170
[ 1877.492730][   T73]      do_syscall_64+0xc6/0x1e0
[ 1877.492730][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1877.492730][   T73] 
[ 1877.495110][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1877.495110][   T73]      netdev_get_by_index+0x5e/0x80
[ 1877.495110][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1877.495110][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1877.495110][   T73]      ip6_route_add+0x1c/0x140
[ 1877.495110][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1877.495110][   T73]      addrconf_add_dev+0xe2/0x170
[ 1877.495110][   T73]      inet6_addr_add+0x12f/0xa40
[ 1877.495110][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1877.495110][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1877.495110][   T73]      netlink_rcv_skb+0x130/0x360
[ 1877.495110][   T73]      netlink_unicast+0x449/0x710
[ 1877.495110][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1877.495110][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1877.495110][   T73]      ___sys_sendmsg+0xee/0x170
[ 1877.495110][   T73]      __sys_sendmsg+0xcd/0x170
[ 1877.495110][   T73]      do_syscall_64+0xc6/0x1e0
[ 1877.495110][   T73] 
[ 1877.497499][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1877.497499][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1877.497499][   T73]      ipv6_find_idev+0x102/0x170
[ 1877.497499][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1877.497499][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1877.497499][   T73]      netlink_rcv_skb+0x130/0x360
[ 1877.497499][   T73]      netlink_unicast+0x449/0x710
[ 1877.497499][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1877.497499][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1877.497499][   T73]      ___sys_sendmsg+0xee/0x170
[ 1877.497499][   T73]      __sys_sendmsg+0xcd/0x170
[ 1877.497499][   T73]      do_syscall_64+0xc6/0x1e0
[ 1877.497499][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1877.497499][   T73] 
[ 1877.499361][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1877.499361][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1877.499361][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1877.499361][   T73]      ipv6_find_idev+0x102/0x170
[ 1877.499361][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1877.499361][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1877.499361][   T73]      netlink_rcv_skb+0x130/0x360
[ 1877.499361][   T73]      netlink_unicast+0x449/0x710
[ 1877.499361][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1877.499361][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1877.499361][   T73]      ___sys_sendmsg+0xee/0x170
[ 1877.499361][   T73]      __sys_sendmsg+0xcd/0x170
[ 1877.499361][   T73]      do_syscall_64+0xc6/0x1e0
[ 1877.499361][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1877.499361][   T73] 
[ 1877.501408][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1877.501734][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1877.501734][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1877.501734][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1877.501734][   T73]      fib6_nh_init+0xa22/0x1580
[ 1877.501734][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1877.501734][   T73]      ip6_route_add+0x1c/0x140
[ 1877.501734][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1877.501734][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1877.501734][   T73]      netlink_rcv_skb+0x130/0x360
[ 1877.501734][   T73]      netlink_unicast+0x449/0x710
[ 1877.501734][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1877.501734][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1877.501734][   T73]      ___sys_sendmsg+0xee/0x170
[ 1877.501734][   T73]      __sys_sendmsg+0xcd/0x170
[ 1877.501734][   T73]      do_syscall_64+0xc6/0x1e0
[ 1877.501734][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1877.501734][   T73] 
[ 1877.504073][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1877.504073][   T73]      dst_init+0x84/0x4a0
[ 1877.504073][   T73]      dst_alloc+0x97/0x150
[ 1877.504073][   T73]      ip6_dst_alloc+0x23/0x90
[ 1877.504073][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1877.504073][   T73]      ip6_pol_route+0x56f/0x840
[ 1877.504073][   T73]      fib6_rule_lookup+0x456/0x630
[ 1877.504073][   T73]      ip6_route_input+0x59c/0xa50
[ 1877.504073][   T73]      ipv6_rcv+0x397/0x810
[ 1877.504073][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1877.504073][   T73]      process_backlog+0x101/0x620
[ 1877.504073][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1877.504073][   T73]      net_rx_action+0x495/0xbe0
[ 1877.504073][   T73]      __do_softirq+0x1b5/0x7f6
[ 1877.504073][   T73] 
[ 1877.506204][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1877.506204][   T73]      netdev_get_by_index+0x5e/0x80
[ 1877.506204][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1877.506204][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1877.506204][   T73]      ip6_route_add+0x1c/0x140
[ 1877.506204][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1877.506204][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1877.506204][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1877.506204][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1877.506204][   T73]      netlink_rcv_skb+0x130/0x360
[ 1877.506204][   T73]      netlink_unicast+0x449/0x710
[ 1877.506204][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1877.506204][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1877.506204][   T73]      ___sys_sendmsg+0xee/0x170
[ 1877.506204][   T73]      __sys_sendmsg+0xcd/0x170
[ 1877.506204][   T73]      do_syscall_64+0xc6/0x1e0
[ 1877.506204][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1877.506204][   T73] 
[ 1877.508674][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1877.508674][   T73]      netdev_get_by_index+0x5e/0x80
[ 1877.508674][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1877.508674][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1877.508674][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1877.508674][   T73]      ipv6_add_addr+0x411/0x2000
[ 1877.508674][   T73]      inet6_addr_add+0x30e/0xa40
[ 1877.508674][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1877.508674][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1877.508674][   T73]      netlink_rcv_skb+0x130/0x360
[ 1877.508674][   T73]      netlink_unicast+0x449/0x710
[ 1877.508674][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1877.508674][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1877.508674][   T73]      ___sys_sendmsg+0xee/0x170
[ 1877.508674][   T73]      __sys_sendmsg+0xcd/0x170
[ 1877.508674][   T73]      do_syscall_64+0xc6/0x1e0
[ 1877.508674][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1877.508674][   T73] 
[ 1877.511226][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1877.511226][   T73]      netdev_get_by_index+0x5e/0x80
[ 1877.511226][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1877.511226][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1877.511226][   T73]      ip6_route_add+0x1c/0x140
[ 1877.511226][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1877.511226][   T73]      addrconf_add_dev+0xe2/0x170
[ 1877.511226][   T73]      inet6_addr_add+0x12f/0xa40
[ 1877.511226][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1877.511226][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1877.511226][   T73]      netlink_rcv_skb+0x130/0x360
[ 1877.511226][   T73]      netlink_unicast+0x449/0x710
[ 1877.511226][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1877.511226][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1877.511226][   T73]      ___sys_sendmsg+0xee/0x170
[ 1877.511226][   T73]      __sys_sendmsg+0xcd/0x170
[ 1877.511226][   T73]      do_syscall_64+0xc6/0x1e0
[ 1877.511226][   T73] 
[ 1877.513721][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1877.513721][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1877.513721][   T73]      ipv6_find_idev+0x102/0x170
[ 1877.513721][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1877.513721][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1877.513721][   T73]      netlink_rcv_skb+0x130/0x360
[ 1877.513721][   T73]      netlink_unicast+0x449/0x710
[ 1877.513721][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1877.513721][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1877.513721][   T73]      ___sys_sendmsg+0xee/0x170
[ 1877.513721][   T73]      __sys_sendmsg+0xcd/0x170
[ 1877.513721][   T73]      do_syscall_64+0xc6/0x1e0
[ 1877.513721][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1877.513721][   T73] 
[ 1877.515702][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1877.515702][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1877.515702][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1877.515702][   T73]      ipv6_find_idev+0x102/0x170
[ 1877.515702][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1877.515702][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1877.515702][   T73]      netlink_rcv_skb+0x130/0x360
[ 1877.515702][   T73]      netlink_unicast+0x449/0x710
[ 1877.515702][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1877.515702][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1877.515702][   T73]      ___sys_sendmsg+0xee/0x170
[ 1877.515702][   T73]      __sys_sendmsg+0xcd/0x170
[ 1877.515702][   T73]      do_syscall_64+0xc6/0x1e0
[ 1877.515702][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1877.515702][   T73] 
[ 1877.517800][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1877.518179][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1877.518179][   T73]      netdev_get_by_index+0x5e/0x80
[ 1877.518179][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1877.518179][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1877.518179][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1877.518179][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1877.518179][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1877.518179][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1877.518179][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1877.518179][   T73]      addrconf_dad_begin+0x310/0x670
[ 1877.518179][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1877.518179][   T73]      process_one_work+0x84d/0x18a0
[ 1877.518179][   T73]      worker_thread+0x587/0xd30
[ 1877.518179][   T73]      kthread+0x28a/0x350
[ 1877.518179][   T73]      ret_from_fork+0x31/0x70
[ 1877.518179][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1877.518179][   T73] 
[ 1877.520541][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1877.520541][   T73]      netdev_get_by_index+0x5e/0x80
[ 1877.520541][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1877.520541][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1877.520541][   T73]      ip6_route_add+0x1c/0x140
[ 1877.520541][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1877.520541][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1877.520541][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1877.520541][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1877.520541][   T73]      netlink_rcv_skb+0x130/0x360
[ 1877.520541][   T73]      netlink_unicast+0x449/0x710
[ 1877.520541][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1877.520541][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1877.520541][   T73]      ___sys_sendmsg+0xee/0x170
[ 1877.520541][   T73]      __sys_sendmsg+0xcd/0x170
[ 1877.520541][   T73]      do_syscall_64+0xc6/0x1e0
[ 1877.520541][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1877.520541][   T73] 
[ 1877.523062][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1877.523062][   T73]      netdev_get_by_index+0x5e/0x80
[ 1877.523062][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1877.523062][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1877.523062][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1877.523062][   T73]      ipv6_add_addr+0x411/0x2000
[ 1877.523062][   T73]      inet6_addr_add+0x30e/0xa40
[ 1877.523062][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1877.523062][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1877.523062][   T73]      netlink_rcv_skb+0x130/0x360
[ 1877.523062][   T73]      netlink_unicast+0x449/0x710
[ 1877.523062][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1877.523062][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1877.523062][   T73]      ___sys_sendmsg+0xee/0x170
[ 1877.523062][   T73]      __sys_sendmsg+0xcd/0x170
[ 1877.523062][   T73]      do_syscall_64+0xc6/0x1e0
[ 1877.523062][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1877.523062][   T73] 
[ 1877.525613][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1877.525613][   T73]      netdev_get_by_index+0x5e/0x80
[ 1877.525613][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1877.525613][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1877.525613][   T73]      ip6_route_add+0x1c/0x140
[ 1877.525613][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1877.525613][   T73]      addrconf_add_dev+0xe2/0x170
[ 1877.525613][   T73]      inet6_addr_add+0x12f/0xa40
[ 1877.525613][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1877.525613][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1877.525613][   T73]      netlink_rcv_skb+0x130/0x360
[ 1877.525613][   T73]      netlink_unicast+0x449/0x710
[ 1877.525613][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1877.525613][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1877.525613][   T73]      ___sys_sendmsg+0xee/0x170
[ 1877.525613][   T73]      __sys_sendmsg+0xcd/0x170
[ 1877.525613][   T73]      do_syscall_64+0xc6/0x1e0
[ 1877.525613][   T73] 
[ 1877.528126][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1877.528126][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1877.528126][   T73]      ipv6_find_idev+0x102/0x170
[ 1877.528126][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1877.528126][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1877.528126][   T73]      netlink_rcv_skb+0x130/0x360
[ 1877.528126][   T73]      netlink_unicast+0x449/0x710
[ 1877.528126][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1877.528126][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1877.528126][   T73]      ___sys_sendmsg+0xee/0x170
[ 1877.528126][   T73]      __sys_sendmsg+0xcd/0x170
[ 1877.528126][   T73]      do_syscall_64+0xc6/0x1e0
[ 1877.528126][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1877.528126][   T73] 
[ 1877.530108][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1877.530108][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1877.530108][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1877.530108][   T73]      ipv6_find_idev+0x102/0x170
[ 1877.530108][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1877.530108][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1877.530108][   T73]      netlink_rcv_skb+0x130/0x360
[ 1877.530108][   T73]      netlink_unicast+0x449/0x710
[ 1877.530108][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1877.530108][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1877.530108][   T73]      ___sys_sendmsg+0xee/0x170
[ 1877.530108][   T73]      __sys_sendmsg+0xcd/0x170
[ 1877.530108][   T73]      do_syscall_64+0xc6/0x1e0
[ 1877.530108][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1877.530108][   T73] 
[ 1887.703735][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1887.704147][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1887.704147][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1887.704147][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1887.704147][   T73]      fib6_nh_init+0xa22/0x1580
[ 1887.704147][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1887.704147][   T73]      ip6_route_add+0x1c/0x140
[ 1887.704147][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1887.704147][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1887.704147][   T73]      netlink_rcv_skb+0x130/0x360
[ 1887.704147][   T73]      netlink_unicast+0x449/0x710
[ 1887.704147][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1887.704147][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1887.704147][   T73]      ___sys_sendmsg+0xee/0x170
[ 1887.704147][   T73]      __sys_sendmsg+0xcd/0x170
[ 1887.704147][   T73]      do_syscall_64+0xc6/0x1e0
[ 1887.704147][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1887.704147][   T73] 
[ 1887.706375][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1887.706375][   T73]      dst_init+0x84/0x4a0
[ 1887.706375][   T73]      dst_alloc+0x97/0x150
[ 1887.706375][   T73]      ip6_dst_alloc+0x23/0x90
[ 1887.706375][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1887.706375][   T73]      ip6_pol_route+0x56f/0x840
[ 1887.706375][   T73]      fib6_rule_lookup+0x456/0x630
[ 1887.706375][   T73]      ip6_route_input+0x59c/0xa50
[ 1887.706375][   T73]      ipv6_rcv+0x397/0x810
[ 1887.706375][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1887.706375][   T73]      process_backlog+0x101/0x620
[ 1887.706375][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1887.706375][   T73]      net_rx_action+0x495/0xbe0
[ 1887.706375][   T73]      __do_softirq+0x1b5/0x7f6
[ 1887.706375][   T73] 
[ 1887.708166][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1887.708166][   T73]      netdev_get_by_index+0x5e/0x80
[ 1887.708166][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1887.708166][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1887.708166][   T73]      ip6_route_add+0x1c/0x140
[ 1887.708166][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1887.708166][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1887.708166][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1887.708166][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1887.708166][   T73]      netlink_rcv_skb+0x130/0x360
[ 1887.708166][   T73]      netlink_unicast+0x449/0x710
[ 1887.708166][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1887.708166][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1887.708166][   T73]      ___sys_sendmsg+0xee/0x170
[ 1887.708166][   T73]      __sys_sendmsg+0xcd/0x170
[ 1887.708166][   T73]      do_syscall_64+0xc6/0x1e0
[ 1887.708166][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1887.708166][   T73] 
[ 1887.710425][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1887.710425][   T73]      netdev_get_by_index+0x5e/0x80
[ 1887.710425][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1887.710425][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1887.710425][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1887.710425][   T73]      ipv6_add_addr+0x411/0x2000
[ 1887.710425][   T73]      inet6_addr_add+0x30e/0xa40
[ 1887.710425][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1887.710425][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1887.710425][   T73]      netlink_rcv_skb+0x130/0x360
[ 1887.710425][   T73]      netlink_unicast+0x449/0x710
[ 1887.710425][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1887.710425][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1887.710425][   T73]      ___sys_sendmsg+0xee/0x170
[ 1887.710425][   T73]      __sys_sendmsg+0xcd/0x170
[ 1887.710425][   T73]      do_syscall_64+0xc6/0x1e0
[ 1887.710425][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1887.710425][   T73] 
[ 1887.712619][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1887.712619][   T73]      netdev_get_by_index+0x5e/0x80
[ 1887.712619][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1887.712619][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1887.712619][   T73]      ip6_route_add+0x1c/0x140
[ 1887.712619][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1887.712619][   T73]      addrconf_add_dev+0xe2/0x170
[ 1887.712619][   T73]      inet6_addr_add+0x12f/0xa40
[ 1887.712619][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1887.712619][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1887.712619][   T73]      netlink_rcv_skb+0x130/0x360
[ 1887.712619][   T73]      netlink_unicast+0x449/0x710
[ 1887.712619][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1887.712619][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1887.712619][   T73]      ___sys_sendmsg+0xee/0x170
[ 1887.712619][   T73]      __sys_sendmsg+0xcd/0x170
[ 1887.712619][   T73]      do_syscall_64+0xc6/0x1e0
[ 1887.712619][   T73] 
[ 1887.714766][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1887.714766][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1887.714766][   T73]      ipv6_find_idev+0x102/0x170
[ 1887.714766][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1887.714766][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1887.714766][   T73]      netlink_rcv_skb+0x130/0x360
[ 1887.714766][   T73]      netlink_unicast+0x449/0x710
[ 1887.714766][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1887.714766][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1887.714766][   T73]      ___sys_sendmsg+0xee/0x170
[ 1887.714766][   T73]      __sys_sendmsg+0xcd/0x170
[ 1887.714766][   T73]      do_syscall_64+0xc6/0x1e0
[ 1887.714766][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1887.714766][   T73] 
[ 1887.716400][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1887.716400][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1887.716400][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1887.716400][   T73]      ipv6_find_idev+0x102/0x170
[ 1887.716400][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1887.716400][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1887.716400][   T73]      netlink_rcv_skb+0x130/0x360
[ 1887.716400][   T73]      netlink_unicast+0x449/0x710
[ 1887.716400][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1887.716400][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1887.716400][   T73]      ___sys_sendmsg+0xee/0x170
[ 1887.716400][   T73]      __sys_sendmsg+0xcd/0x170
[ 1887.716400][   T73]      do_syscall_64+0xc6/0x1e0
[ 1887.716400][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1887.716400][   T73] 
[ 1887.718168][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1887.718467][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1887.718467][   T73]      netdev_get_by_index+0x5e/0x80
[ 1887.718467][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1887.718467][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1887.718467][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1887.718467][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1887.718467][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1887.718467][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1887.718467][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1887.718467][   T73]      addrconf_dad_begin+0x310/0x670
[ 1887.718467][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1887.718467][   T73]      process_one_work+0x84d/0x18a0
[ 1887.718467][   T73]      worker_thread+0x587/0xd30
[ 1887.718467][   T73]      kthread+0x28a/0x350
[ 1887.718467][   T73]      ret_from_fork+0x31/0x70
[ 1887.718467][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1887.718467][   T73] 
[ 1887.720487][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1887.720487][   T73]      netdev_get_by_index+0x5e/0x80
[ 1887.720487][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1887.720487][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1887.720487][   T73]      ip6_route_add+0x1c/0x140
[ 1887.720487][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1887.720487][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1887.720487][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1887.720487][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1887.720487][   T73]      netlink_rcv_skb+0x130/0x360
[ 1887.720487][   T73]      netlink_unicast+0x449/0x710
[ 1887.720487][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1887.720487][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1887.720487][   T73]      ___sys_sendmsg+0xee/0x170
[ 1887.720487][   T73]      __sys_sendmsg+0xcd/0x170
[ 1887.720487][   T73]      do_syscall_64+0xc6/0x1e0
[ 1887.720487][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1887.720487][   T73] 
[ 1887.722712][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1887.722712][   T73]      netdev_get_by_index+0x5e/0x80
[ 1887.722712][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1887.722712][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1887.722712][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1887.722712][   T73]      ipv6_add_addr+0x411/0x2000
[ 1887.722712][   T73]      inet6_addr_add+0x30e/0xa40
[ 1887.722712][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1887.722712][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1887.722712][   T73]      netlink_rcv_skb+0x130/0x360
[ 1887.722712][   T73]      netlink_unicast+0x449/0x710
[ 1887.722712][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1887.722712][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1887.722712][   T73]      ___sys_sendmsg+0xee/0x170
[ 1887.722712][   T73]      __sys_sendmsg+0xcd/0x170
[ 1887.722712][   T73]      do_syscall_64+0xc6/0x1e0
[ 1887.722712][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1887.722712][   T73] 
[ 1887.724903][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1887.724903][   T73]      netdev_get_by_index+0x5e/0x80
[ 1887.724903][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1887.724903][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1887.724903][   T73]      ip6_route_add+0x1c/0x140
[ 1887.724903][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1887.724903][   T73]      addrconf_add_dev+0xe2/0x170
[ 1887.724903][   T73]      inet6_addr_add+0x12f/0xa40
[ 1887.724903][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1887.724903][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1887.724903][   T73]      netlink_rcv_skb+0x130/0x360
[ 1887.724903][   T73]      netlink_unicast+0x449/0x710
[ 1887.724903][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1887.724903][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1887.724903][   T73]      ___sys_sendmsg+0xee/0x170
[ 1887.724903][   T73]      __sys_sendmsg+0xcd/0x170
[ 1887.724903][   T73]      do_syscall_64+0xc6/0x1e0
[ 1887.724903][   T73] 
[ 1887.727073][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1887.727073][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1887.727073][   T73]      ipv6_find_idev+0x102/0x170
[ 1887.727073][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1887.727073][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1887.727073][   T73]      netlink_rcv_skb+0x130/0x360
[ 1887.727073][   T73]      netlink_unicast+0x449/0x710
[ 1887.727073][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1887.727073][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1887.727073][   T73]      ___sys_sendmsg+0xee/0x170
[ 1887.727073][   T73]      __sys_sendmsg+0xcd/0x170
[ 1887.727073][   T73]      do_syscall_64+0xc6/0x1e0
[ 1887.727073][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1887.727073][   T73] 
[ 1887.728789][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1887.728789][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1887.728789][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1887.728789][   T73]      ipv6_find_idev+0x102/0x170
[ 1887.728789][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1887.728789][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1887.728789][   T73]      netlink_rcv_skb+0x130/0x360
[ 1887.728789][   T73]      netlink_unicast+0x449/0x710
[ 1887.728789][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1887.728789][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1887.728789][   T73]      ___sys_sendmsg+0xee/0x170
[ 1887.728789][   T73]      __sys_sendmsg+0xcd/0x170
[ 1887.728789][   T73]      do_syscall_64+0xc6/0x1e0
[ 1887.728789][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1887.728789][   T73] 
[ 1887.730661][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1887.730958][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1887.730958][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1887.730958][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1887.730958][   T73]      fib6_nh_init+0xa22/0x1580
[ 1887.730958][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1887.730958][   T73]      ip6_route_add+0x1c/0x140
[ 1887.730958][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1887.730958][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1887.730958][   T73]      netlink_rcv_skb+0x130/0x360
[ 1887.730958][   T73]      netlink_unicast+0x449/0x710
[ 1887.730958][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1887.730958][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1887.730958][   T73]      ___sys_sendmsg+0xee/0x170
[ 1887.730958][   T73]      __sys_sendmsg+0xcd/0x170
[ 1887.730958][   T73]      do_syscall_64+0xc6/0x1e0
[ 1887.730958][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1887.730958][   T73] 
[ 1887.733071][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1887.733071][   T73]      dst_init+0x84/0x4a0
[ 1887.733071][   T73]      dst_alloc+0x97/0x150
[ 1887.733071][   T73]      ip6_dst_alloc+0x23/0x90
[ 1887.733071][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1887.733071][   T73]      ip6_pol_route+0x56f/0x840
[ 1887.733071][   T73]      fib6_rule_lookup+0x456/0x630
[ 1887.733071][   T73]      ip6_route_input+0x59c/0xa50
[ 1887.733071][   T73]      ipv6_rcv+0x397/0x810
[ 1887.733071][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1887.733071][   T73]      process_backlog+0x101/0x620
[ 1887.733071][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1887.733071][   T73]      net_rx_action+0x495/0xbe0
[ 1887.733071][   T73]      __do_softirq+0x1b5/0x7f6
[ 1887.733071][   T73] 
[ 1887.734965][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1887.734965][   T73]      netdev_get_by_index+0x5e/0x80
[ 1887.734965][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1887.734965][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1887.734965][   T73]      ip6_route_add+0x1c/0x140
[ 1887.734965][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1887.734965][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1887.734965][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1887.734965][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1887.734965][   T73]      netlink_rcv_skb+0x130/0x360
[ 1887.734965][   T73]      netlink_unicast+0x449/0x710
[ 1887.734965][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1887.734965][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1887.734965][   T73]      ___sys_sendmsg+0xee/0x170
[ 1887.734965][   T73]      __sys_sendmsg+0xcd/0x170
[ 1887.734965][   T73]      do_syscall_64+0xc6/0x1e0
[ 1887.734965][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1887.734965][   T73] 
[ 1887.737118][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1887.737118][   T73]      netdev_get_by_index+0x5e/0x80
[ 1887.737118][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1887.737118][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1887.737118][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1887.737118][   T73]      ipv6_add_addr+0x411/0x2000
[ 1887.737118][   T73]      inet6_addr_add+0x30e/0xa40
[ 1887.737118][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1887.737118][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1887.737118][   T73]      netlink_rcv_skb+0x130/0x360
[ 1887.737118][   T73]      netlink_unicast+0x449/0x710
[ 1887.737118][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1887.737118][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1887.737118][   T73]      ___sys_sendmsg+0xee/0x170
[ 1887.737118][   T73]      __sys_sendmsg+0xcd/0x170
[ 1887.737118][   T73]      do_syscall_64+0xc6/0x1e0
[ 1887.737118][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1887.737118][   T73] 
[ 1887.739302][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1887.739302][   T73]      netdev_get_by_index+0x5e/0x80
[ 1887.739302][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1887.739302][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1887.739302][   T73]      ip6_route_add+0x1c/0x140
[ 1887.739302][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1887.739302][   T73]      addrconf_add_dev+0xe2/0x170
[ 1887.739302][   T73]      inet6_addr_add+0x12f/0xa40
[ 1887.739302][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1887.739302][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1887.739302][   T73]      netlink_rcv_skb+0x130/0x360
[ 1887.739302][   T73]      netlink_unicast+0x449/0x710
[ 1887.739302][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1887.739302][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1887.739302][   T73]      ___sys_sendmsg+0xee/0x170
[ 1887.739302][   T73]      __sys_sendmsg+0xcd/0x170
[ 1887.739302][   T73]      do_syscall_64+0xc6/0x1e0
[ 1887.739302][   T73] 
[ 1887.741518][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1887.741518][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1887.741518][   T73]      ipv6_find_idev+0x102/0x170
[ 1887.741518][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1887.741518][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1887.741518][   T73]      netlink_rcv_skb+0x130/0x360
[ 1887.741518][   T73]      netlink_unicast+0x449/0x710
[ 1887.741518][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1887.741518][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1887.741518][   T73]      ___sys_sendmsg+0xee/0x170
[ 1887.741518][   T73]      __sys_sendmsg+0xcd/0x170
[ 1887.741518][   T73]      do_syscall_64+0xc6/0x1e0
[ 1887.741518][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1887.741518][   T73] 
[ 1887.743240][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1887.743240][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1887.743240][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1887.743240][   T73]      ipv6_find_idev+0x102/0x170
[ 1887.743240][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1887.743240][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1887.743240][   T73]      netlink_rcv_skb+0x130/0x360
[ 1887.743240][   T73]      netlink_unicast+0x449/0x710
[ 1887.743240][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1887.743240][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1887.743240][   T73]      ___sys_sendmsg+0xee/0x170
[ 1887.743240][   T73]      __sys_sendmsg+0xcd/0x170
[ 1887.743240][   T73]      do_syscall_64+0xc6/0x1e0
[ 1887.743240][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1887.743240][   T73] 
[ 1887.745228][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1887.745564][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1887.745564][   T73]      netdev_get_by_index+0x5e/0x80
[ 1887.745564][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1887.745564][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1887.745564][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1887.745564][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1887.745564][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1887.745564][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1887.745564][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1887.745564][   T73]      addrconf_dad_begin+0x310/0x670
[ 1887.745564][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1887.745564][   T73]      process_one_work+0x84d/0x18a0
[ 1887.745564][   T73]      worker_thread+0x587/0xd30
[ 1887.745564][   T73]      kthread+0x28a/0x350
[ 1887.745564][   T73]      ret_from_fork+0x31/0x70
[ 1887.745564][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1887.745564][   T73] 
[ 1887.747774][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1887.747774][   T73]      netdev_get_by_index+0x5e/0x80
[ 1887.747774][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1887.747774][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1887.747774][   T73]      ip6_route_add+0x1c/0x140
[ 1887.747774][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1887.747774][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1887.747774][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1887.747774][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1887.747774][   T73]      netlink_rcv_skb+0x130/0x360
[ 1887.747774][   T73]      netlink_unicast+0x449/0x710
[ 1887.747774][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1887.747774][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1887.747774][   T73]      ___sys_sendmsg+0xee/0x170
[ 1887.747774][   T73]      __sys_sendmsg+0xcd/0x170
[ 1887.747774][   T73]      do_syscall_64+0xc6/0x1e0
[ 1887.747774][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1887.747774][   T73] 
[ 1887.750070][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1887.750070][   T73]      netdev_get_by_index+0x5e/0x80
[ 1887.750070][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1887.750070][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1887.750070][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1887.750070][   T73]      ipv6_add_addr+0x411/0x2000
[ 1887.750070][   T73]      inet6_addr_add+0x30e/0xa40
[ 1887.750070][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1887.750070][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1887.750070][   T73]      netlink_rcv_skb+0x130/0x360
[ 1887.750070][   T73]      netlink_unicast+0x449/0x710
[ 1887.750070][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1887.750070][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1887.750070][   T73]      ___sys_sendmsg+0xee/0x170
[ 1887.750070][   T73]      __sys_sendmsg+0xcd/0x170
[ 1887.750070][   T73]      do_syscall_64+0xc6/0x1e0
[ 1887.750070][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1887.750070][   T73] 
[ 1887.752371][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1887.752371][   T73]      netdev_get_by_index+0x5e/0x80
[ 1887.752371][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1887.752371][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1887.752371][   T73]      ip6_route_add+0x1c/0x140
[ 1887.752371][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1887.752371][   T73]      addrconf_add_dev+0xe2/0x170
[ 1887.752371][   T73]      inet6_addr_add+0x12f/0xa40
[ 1887.752371][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1887.752371][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1887.752371][   T73]      netlink_rcv_skb+0x130/0x360
[ 1887.752371][   T73]      netlink_unicast+0x449/0x710
[ 1887.752371][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1887.752371][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1887.752371][   T73]      ___sys_sendmsg+0xee/0x170
[ 1887.752371][   T73]      __sys_sendmsg+0xcd/0x170
[ 1887.752371][   T73]      do_syscall_64+0xc6/0x1e0
[ 1887.752371][   T73] 
[ 1887.754673][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1887.754673][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1887.754673][   T73]      ipv6_find_idev+0x102/0x170
[ 1887.754673][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1887.754673][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1887.754673][   T73]      netlink_rcv_skb+0x130/0x360
[ 1887.754673][   T73]      netlink_unicast+0x449/0x710
[ 1887.754673][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1887.754673][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1887.754673][   T73]      ___sys_sendmsg+0xee/0x170
[ 1887.754673][   T73]      __sys_sendmsg+0xcd/0x170
[ 1887.754673][   T73]      do_syscall_64+0xc6/0x1e0
[ 1887.754673][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1887.754673][   T73] 
[ 1887.756399][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1887.756399][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1887.756399][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1887.756399][   T73]      ipv6_find_idev+0x102/0x170
[ 1887.756399][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1887.756399][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1887.756399][   T73]      netlink_rcv_skb+0x130/0x360
[ 1887.756399][   T73]      netlink_unicast+0x449/0x710
[ 1887.756399][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1887.756399][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1887.756399][   T73]      ___sys_sendmsg+0xee/0x170
[ 1887.756399][   T73]      __sys_sendmsg+0xcd/0x170
[ 1887.756399][   T73]      do_syscall_64+0xc6/0x1e0
[ 1887.756399][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1887.756399][   T73] 
[ 1898.007760][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1898.008221][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1898.008221][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1898.008221][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1898.008221][   T73]      fib6_nh_init+0xa22/0x1580
[ 1898.008221][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1898.008221][   T73]      ip6_route_add+0x1c/0x140
[ 1898.008221][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1898.008221][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1898.008221][   T73]      netlink_rcv_skb+0x130/0x360
[ 1898.008221][   T73]      netlink_unicast+0x449/0x710
[ 1898.008221][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1898.008221][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1898.008221][   T73]      ___sys_sendmsg+0xee/0x170
[ 1898.008221][   T73]      __sys_sendmsg+0xcd/0x170
[ 1898.008221][   T73]      do_syscall_64+0xc6/0x1e0
[ 1898.008221][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1898.008221][   T73] 
[ 1898.010190][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1898.010190][   T73]      dst_init+0x84/0x4a0
[ 1898.010190][   T73]      dst_alloc+0x97/0x150
[ 1898.010190][   T73]      ip6_dst_alloc+0x23/0x90
[ 1898.010190][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1898.010190][   T73]      ip6_pol_route+0x56f/0x840
[ 1898.010190][   T73]      fib6_rule_lookup+0x456/0x630
[ 1898.010190][   T73]      ip6_route_input+0x59c/0xa50
[ 1898.010190][   T73]      ipv6_rcv+0x397/0x810
[ 1898.010190][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1898.010190][   T73]      process_backlog+0x101/0x620
[ 1898.010190][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1898.010190][   T73]      net_rx_action+0x495/0xbe0
[ 1898.010190][   T73]      __do_softirq+0x1b5/0x7f6
[ 1898.010190][   T73] 
[ 1898.011901][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1898.011901][   T73]      netdev_get_by_index+0x5e/0x80
[ 1898.011901][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1898.011901][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1898.011901][   T73]      ip6_route_add+0x1c/0x140
[ 1898.011901][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1898.011901][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1898.011901][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1898.011901][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1898.011901][   T73]      netlink_rcv_skb+0x130/0x360
[ 1898.011901][   T73]      netlink_unicast+0x449/0x710
[ 1898.011901][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1898.011901][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1898.011901][   T73]      ___sys_sendmsg+0xee/0x170
[ 1898.011901][   T73]      __sys_sendmsg+0xcd/0x170
[ 1898.011901][   T73]      do_syscall_64+0xc6/0x1e0
[ 1898.011901][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1898.011901][   T73] 
[ 1898.014006][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1898.014006][   T73]      netdev_get_by_index+0x5e/0x80
[ 1898.014006][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1898.014006][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1898.014006][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1898.014006][   T73]      ipv6_add_addr+0x411/0x2000
[ 1898.014006][   T73]      inet6_addr_add+0x30e/0xa40
[ 1898.014006][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1898.014006][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1898.014006][   T73]      netlink_rcv_skb+0x130/0x360
[ 1898.014006][   T73]      netlink_unicast+0x449/0x710
[ 1898.014006][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1898.014006][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1898.014006][   T73]      ___sys_sendmsg+0xee/0x170
[ 1898.014006][   T73]      __sys_sendmsg+0xcd/0x170
[ 1898.014006][   T73]      do_syscall_64+0xc6/0x1e0
[ 1898.014006][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1898.014006][   T73] 
[ 1898.016096][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1898.016096][   T73]      netdev_get_by_index+0x5e/0x80
[ 1898.016096][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1898.016096][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1898.016096][   T73]      ip6_route_add+0x1c/0x140
[ 1898.016096][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1898.016096][   T73]      addrconf_add_dev+0xe2/0x170
[ 1898.016096][   T73]      inet6_addr_add+0x12f/0xa40
[ 1898.016096][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1898.016096][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1898.016096][   T73]      netlink_rcv_skb+0x130/0x360
[ 1898.016096][   T73]      netlink_unicast+0x449/0x710
[ 1898.016096][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1898.016096][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1898.016096][   T73]      ___sys_sendmsg+0xee/0x170
[ 1898.016096][   T73]      __sys_sendmsg+0xcd/0x170
[ 1898.016096][   T73]      do_syscall_64+0xc6/0x1e0
[ 1898.016096][   T73] 
[ 1898.018140][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1898.018140][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1898.018140][   T73]      ipv6_find_idev+0x102/0x170
[ 1898.018140][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1898.018140][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1898.018140][   T73]      netlink_rcv_skb+0x130/0x360
[ 1898.018140][   T73]      netlink_unicast+0x449/0x710
[ 1898.018140][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1898.018140][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1898.018140][   T73]      ___sys_sendmsg+0xee/0x170
[ 1898.018140][   T73]      __sys_sendmsg+0xcd/0x170
[ 1898.018140][   T73]      do_syscall_64+0xc6/0x1e0
[ 1898.018140][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1898.018140][   T73] 
[ 1898.019743][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1898.019743][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1898.019743][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1898.019743][   T73]      ipv6_find_idev+0x102/0x170
[ 1898.019743][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1898.019743][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1898.019743][   T73]      netlink_rcv_skb+0x130/0x360
[ 1898.019743][   T73]      netlink_unicast+0x449/0x710
[ 1898.019743][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1898.019743][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1898.019743][   T73]      ___sys_sendmsg+0xee/0x170
[ 1898.019743][   T73]      __sys_sendmsg+0xcd/0x170
[ 1898.019743][   T73]      do_syscall_64+0xc6/0x1e0
[ 1898.019743][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1898.019743][   T73] 
[ 1898.021498][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1898.021797][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1898.021797][   T73]      netdev_get_by_index+0x5e/0x80
[ 1898.021797][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1898.021797][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1898.021797][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1898.021797][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1898.021797][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1898.021797][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1898.021797][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1898.021797][   T73]      addrconf_dad_begin+0x310/0x670
[ 1898.021797][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1898.021797][   T73]      process_one_work+0x84d/0x18a0
[ 1898.021797][   T73]      worker_thread+0x587/0xd30
[ 1898.021797][   T73]      kthread+0x28a/0x350
[ 1898.021797][   T73]      ret_from_fork+0x31/0x70
[ 1898.021797][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1898.021797][   T73] 
[ 1898.023809][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1898.023809][   T73]      netdev_get_by_index+0x5e/0x80
[ 1898.023809][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1898.023809][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1898.023809][   T73]      ip6_route_add+0x1c/0x140
[ 1898.023809][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1898.023809][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1898.023809][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1898.023809][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1898.023809][   T73]      netlink_rcv_skb+0x130/0x360
[ 1898.023809][   T73]      netlink_unicast+0x449/0x710
[ 1898.023809][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1898.023809][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1898.023809][   T73]      ___sys_sendmsg+0xee/0x170
[ 1898.023809][   T73]      __sys_sendmsg+0xcd/0x170
[ 1898.023809][   T73]      do_syscall_64+0xc6/0x1e0
[ 1898.023809][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1898.023809][   T73] 
[ 1898.025913][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1898.025913][   T73]      netdev_get_by_index+0x5e/0x80
[ 1898.025913][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1898.025913][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1898.025913][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1898.025913][   T73]      ipv6_add_addr+0x411/0x2000
[ 1898.025913][   T73]      inet6_addr_add+0x30e/0xa40
[ 1898.025913][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1898.025913][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1898.025913][   T73]      netlink_rcv_skb+0x130/0x360
[ 1898.025913][   T73]      netlink_unicast+0x449/0x710
[ 1898.025913][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1898.025913][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1898.025913][   T73]      ___sys_sendmsg+0xee/0x170
[ 1898.025913][   T73]      __sys_sendmsg+0xcd/0x170
[ 1898.025913][   T73]      do_syscall_64+0xc6/0x1e0
[ 1898.025913][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1898.025913][   T73] 
[ 1898.028008][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1898.028008][   T73]      netdev_get_by_index+0x5e/0x80
[ 1898.028008][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1898.028008][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1898.028008][   T73]      ip6_route_add+0x1c/0x140
[ 1898.028008][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1898.028008][   T73]      addrconf_add_dev+0xe2/0x170
[ 1898.028008][   T73]      inet6_addr_add+0x12f/0xa40
[ 1898.028008][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1898.028008][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1898.028008][   T73]      netlink_rcv_skb+0x130/0x360
[ 1898.028008][   T73]      netlink_unicast+0x449/0x710
[ 1898.028008][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1898.028008][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1898.028008][   T73]      ___sys_sendmsg+0xee/0x170
[ 1898.028008][   T73]      __sys_sendmsg+0xcd/0x170
[ 1898.028008][   T73]      do_syscall_64+0xc6/0x1e0
[ 1898.028008][   T73] 
[ 1898.030050][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1898.030050][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1898.030050][   T73]      ipv6_find_idev+0x102/0x170
[ 1898.030050][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1898.030050][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1898.030050][   T73]      netlink_rcv_skb+0x130/0x360
[ 1898.030050][   T73]      netlink_unicast+0x449/0x710
[ 1898.030050][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1898.030050][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1898.030050][   T73]      ___sys_sendmsg+0xee/0x170
[ 1898.030050][   T73]      __sys_sendmsg+0xcd/0x170
[ 1898.030050][   T73]      do_syscall_64+0xc6/0x1e0
[ 1898.030050][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1898.030050][   T73] 
[ 1898.031669][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1898.031669][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1898.031669][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1898.031669][   T73]      ipv6_find_idev+0x102/0x170
[ 1898.031669][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1898.031669][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1898.031669][   T73]      netlink_rcv_skb+0x130/0x360
[ 1898.031669][   T73]      netlink_unicast+0x449/0x710
[ 1898.031669][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1898.031669][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1898.031669][   T73]      ___sys_sendmsg+0xee/0x170
[ 1898.031669][   T73]      __sys_sendmsg+0xcd/0x170
[ 1898.031669][   T73]      do_syscall_64+0xc6/0x1e0
[ 1898.031669][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1898.031669][   T73] 
[ 1898.033427][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1898.033713][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1898.033713][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1898.033713][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1898.033713][   T73]      fib6_nh_init+0xa22/0x1580
[ 1898.033713][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1898.033713][   T73]      ip6_route_add+0x1c/0x140
[ 1898.033713][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1898.033713][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1898.033713][   T73]      netlink_rcv_skb+0x130/0x360
[ 1898.033713][   T73]      netlink_unicast+0x449/0x710
[ 1898.033713][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1898.033713][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1898.033713][   T73]      ___sys_sendmsg+0xee/0x170
[ 1898.033713][   T73]      __sys_sendmsg+0xcd/0x170
[ 1898.033713][   T73]      do_syscall_64+0xc6/0x1e0
[ 1898.033713][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1898.033713][   T73] 
[ 1898.035860][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1898.035860][   T73]      dst_init+0x84/0x4a0
[ 1898.035860][   T73]      dst_alloc+0x97/0x150
[ 1898.035860][   T73]      ip6_dst_alloc+0x23/0x90
[ 1898.035860][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1898.035860][   T73]      ip6_pol_route+0x56f/0x840
[ 1898.035860][   T73]      fib6_rule_lookup+0x456/0x630
[ 1898.035860][   T73]      ip6_route_input+0x59c/0xa50
[ 1898.035860][   T73]      ipv6_rcv+0x397/0x810
[ 1898.035860][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1898.035860][   T73]      process_backlog+0x101/0x620
[ 1898.035860][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1898.035860][   T73]      net_rx_action+0x495/0xbe0
[ 1898.035860][   T73]      __do_softirq+0x1b5/0x7f6
[ 1898.035860][   T73] 
[ 1898.037809][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1898.037809][   T73]      netdev_get_by_index+0x5e/0x80
[ 1898.037809][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1898.037809][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1898.037809][   T73]      ip6_route_add+0x1c/0x140
[ 1898.037809][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1898.037809][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1898.037809][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1898.037809][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1898.037809][   T73]      netlink_rcv_skb+0x130/0x360
[ 1898.037809][   T73]      netlink_unicast+0x449/0x710
[ 1898.037809][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1898.037809][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1898.037809][   T73]      ___sys_sendmsg+0xee/0x170
[ 1898.037809][   T73]      __sys_sendmsg+0xcd/0x170
[ 1898.037809][   T73]      do_syscall_64+0xc6/0x1e0
[ 1898.037809][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1898.037809][   T73] 
[ 1898.040128][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1898.040128][   T73]      netdev_get_by_index+0x5e/0x80
[ 1898.040128][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1898.040128][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1898.040128][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1898.040128][   T73]      ipv6_add_addr+0x411/0x2000
[ 1898.040128][   T73]      inet6_addr_add+0x30e/0xa40
[ 1898.040128][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1898.040128][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1898.040128][   T73]      netlink_rcv_skb+0x130/0x360
[ 1898.040128][   T73]      netlink_unicast+0x449/0x710
[ 1898.040128][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1898.040128][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1898.040128][   T73]      ___sys_sendmsg+0xee/0x170
[ 1898.040128][   T73]      __sys_sendmsg+0xcd/0x170
[ 1898.040128][   T73]      do_syscall_64+0xc6/0x1e0
[ 1898.040128][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1898.040128][   T73] 
[ 1898.042443][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1898.042443][   T73]      netdev_get_by_index+0x5e/0x80
[ 1898.042443][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1898.042443][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1898.042443][   T73]      ip6_route_add+0x1c/0x140
[ 1898.042443][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1898.042443][   T73]      addrconf_add_dev+0xe2/0x170
[ 1898.042443][   T73]      inet6_addr_add+0x12f/0xa40
[ 1898.042443][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1898.042443][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1898.042443][   T73]      netlink_rcv_skb+0x130/0x360
[ 1898.042443][   T73]      netlink_unicast+0x449/0x710
[ 1898.042443][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1898.042443][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1898.042443][   T73]      ___sys_sendmsg+0xee/0x170
[ 1898.042443][   T73]      __sys_sendmsg+0xcd/0x170
[ 1898.042443][   T73]      do_syscall_64+0xc6/0x1e0
[ 1898.042443][   T73] 
[ 1898.044663][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1898.044663][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1898.044663][   T73]      ipv6_find_idev+0x102/0x170
[ 1898.044663][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1898.044663][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1898.044663][   T73]      netlink_rcv_skb+0x130/0x360
[ 1898.044663][   T73]      netlink_unicast+0x449/0x710
[ 1898.044663][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1898.044663][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1898.044663][   T73]      ___sys_sendmsg+0xee/0x170
[ 1898.044663][   T73]      __sys_sendmsg+0xcd/0x170
[ 1898.044663][   T73]      do_syscall_64+0xc6/0x1e0
[ 1898.044663][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1898.044663][   T73] 
[ 1898.046513][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1898.046513][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1898.046513][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1898.046513][   T73]      ipv6_find_idev+0x102/0x170
[ 1898.046513][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1898.046513][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1898.046513][   T73]      netlink_rcv_skb+0x130/0x360
[ 1898.046513][   T73]      netlink_unicast+0x449/0x710
[ 1898.046513][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1898.046513][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1898.046513][   T73]      ___sys_sendmsg+0xee/0x170
[ 1898.046513][   T73]      __sys_sendmsg+0xcd/0x170
[ 1898.046513][   T73]      do_syscall_64+0xc6/0x1e0
[ 1898.046513][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1898.046513][   T73] 
[ 1898.048504][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1898.049231][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1898.049231][   T73]      netdev_get_by_index+0x5e/0x80
[ 1898.049231][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1898.049231][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1898.049231][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1898.049231][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1898.049231][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1898.049231][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1898.049231][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1898.049231][   T73]      addrconf_dad_begin+0x310/0x670
[ 1898.049231][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1898.049231][   T73]      process_one_work+0x84d/0x18a0
[ 1898.049231][   T73]      worker_thread+0x587/0xd30
[ 1898.049231][   T73]      kthread+0x28a/0x350
[ 1898.049231][   T73]      ret_from_fork+0x31/0x70
[ 1898.049231][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1898.049231][   T73] 
[ 1898.051214][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1898.051214][   T73]      netdev_get_by_index+0x5e/0x80
[ 1898.051214][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1898.051214][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1898.051214][   T73]      ip6_route_add+0x1c/0x140
[ 1898.051214][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1898.051214][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1898.051214][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1898.051214][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1898.051214][   T73]      netlink_rcv_skb+0x130/0x360
[ 1898.051214][   T73]      netlink_unicast+0x449/0x710
[ 1898.051214][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1898.051214][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1898.051214][   T73]      ___sys_sendmsg+0xee/0x170
[ 1898.051214][   T73]      __sys_sendmsg+0xcd/0x170
[ 1898.051214][   T73]      do_syscall_64+0xc6/0x1e0
[ 1898.051214][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1898.051214][   T73] 
[ 1898.053413][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1898.053413][   T73]      netdev_get_by_index+0x5e/0x80
[ 1898.053413][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1898.053413][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1898.053413][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1898.053413][   T73]      ipv6_add_addr+0x411/0x2000
[ 1898.053413][   T73]      inet6_addr_add+0x30e/0xa40
[ 1898.053413][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1898.053413][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1898.053413][   T73]      netlink_rcv_skb+0x130/0x360
[ 1898.053413][   T73]      netlink_unicast+0x449/0x710
[ 1898.053413][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1898.053413][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1898.053413][   T73]      ___sys_sendmsg+0xee/0x170
[ 1898.053413][   T73]      __sys_sendmsg+0xcd/0x170
[ 1898.053413][   T73]      do_syscall_64+0xc6/0x1e0
[ 1898.053413][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1898.053413][   T73] 
[ 1898.055680][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1898.055680][   T73]      netdev_get_by_index+0x5e/0x80
[ 1898.055680][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1898.055680][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1898.055680][   T73]      ip6_route_add+0x1c/0x140
[ 1898.055680][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1898.055680][   T73]      addrconf_add_dev+0xe2/0x170
[ 1898.055680][   T73]      inet6_addr_add+0x12f/0xa40
[ 1898.055680][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1898.055680][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1898.055680][   T73]      netlink_rcv_skb+0x130/0x360
[ 1898.055680][   T73]      netlink_unicast+0x449/0x710
[ 1898.055680][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1898.055680][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1898.055680][   T73]      ___sys_sendmsg+0xee/0x170
[ 1898.055680][   T73]      __sys_sendmsg+0xcd/0x170
[ 1898.055680][   T73]      do_syscall_64+0xc6/0x1e0
[ 1898.055680][   T73] 
[ 1898.057970][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1898.057970][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1898.057970][   T73]      ipv6_find_idev+0x102/0x170
[ 1898.057970][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1898.057970][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1898.057970][   T73]      netlink_rcv_skb+0x130/0x360
[ 1898.057970][   T73]      netlink_unicast+0x449/0x710
[ 1898.057970][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1898.057970][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1898.057970][   T73]      ___sys_sendmsg+0xee/0x170
[ 1898.057970][   T73]      __sys_sendmsg+0xcd/0x170
[ 1898.057970][   T73]      do_syscall_64+0xc6/0x1e0
[ 1898.057970][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1898.057970][   T73] 
[ 1898.059813][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1898.059813][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1898.059813][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1898.059813][   T73]      ipv6_find_idev+0x102/0x170
[ 1898.059813][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1898.059813][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1898.059813][   T73]      netlink_rcv_skb+0x130/0x360
[ 1898.059813][   T73]      netlink_unicast+0x449/0x710
[ 1898.059813][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1898.059813][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1898.059813][   T73]      ___sys_sendmsg+0xee/0x170
[ 1898.059813][   T73]      __sys_sendmsg+0xcd/0x170
[ 1898.059813][   T73]      do_syscall_64+0xc6/0x1e0
[ 1898.059813][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1898.059813][   T73] 
[ 1908.063692][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1908.064100][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1908.064100][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1908.064100][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1908.064100][   T73]      fib6_nh_init+0xa22/0x1580
[ 1908.064100][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1908.064100][   T73]      ip6_route_add+0x1c/0x140
[ 1908.064100][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1908.064100][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1908.064100][   T73]      netlink_rcv_skb+0x130/0x360
[ 1908.064100][   T73]      netlink_unicast+0x449/0x710
[ 1908.064100][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1908.064100][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1908.064100][   T73]      ___sys_sendmsg+0xee/0x170
[ 1908.064100][   T73]      __sys_sendmsg+0xcd/0x170
[ 1908.064100][   T73]      do_syscall_64+0xc6/0x1e0
[ 1908.064100][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1908.064100][   T73] 
[ 1908.066131][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1908.066131][   T73]      dst_init+0x84/0x4a0
[ 1908.066131][   T73]      dst_alloc+0x97/0x150
[ 1908.066131][   T73]      ip6_dst_alloc+0x23/0x90
[ 1908.066131][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1908.066131][   T73]      ip6_pol_route+0x56f/0x840
[ 1908.066131][   T73]      fib6_rule_lookup+0x456/0x630
[ 1908.066131][   T73]      ip6_route_input+0x59c/0xa50
[ 1908.066131][   T73]      ipv6_rcv+0x397/0x810
[ 1908.066131][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1908.066131][   T73]      process_backlog+0x101/0x620
[ 1908.066131][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1908.066131][   T73]      net_rx_action+0x495/0xbe0
[ 1908.066131][   T73]      __do_softirq+0x1b5/0x7f6
[ 1908.066131][   T73] 
[ 1908.067858][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1908.067858][   T73]      netdev_get_by_index+0x5e/0x80
[ 1908.067858][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1908.067858][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1908.067858][   T73]      ip6_route_add+0x1c/0x140
[ 1908.067858][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1908.067858][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1908.067858][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1908.067858][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1908.067858][   T73]      netlink_rcv_skb+0x130/0x360
[ 1908.067858][   T73]      netlink_unicast+0x449/0x710
[ 1908.067858][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1908.067858][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1908.067858][   T73]      ___sys_sendmsg+0xee/0x170
[ 1908.067858][   T73]      __sys_sendmsg+0xcd/0x170
[ 1908.067858][   T73]      do_syscall_64+0xc6/0x1e0
[ 1908.067858][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1908.067858][   T73] 
[ 1908.069955][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1908.069955][   T73]      netdev_get_by_index+0x5e/0x80
[ 1908.069955][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1908.069955][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1908.069955][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1908.069955][   T73]      ipv6_add_addr+0x411/0x2000
[ 1908.069955][   T73]      inet6_addr_add+0x30e/0xa40
[ 1908.069955][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1908.069955][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1908.069955][   T73]      netlink_rcv_skb+0x130/0x360
[ 1908.069955][   T73]      netlink_unicast+0x449/0x710
[ 1908.069955][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1908.069955][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1908.069955][   T73]      ___sys_sendmsg+0xee/0x170
[ 1908.069955][   T73]      __sys_sendmsg+0xcd/0x170
[ 1908.069955][   T73]      do_syscall_64+0xc6/0x1e0
[ 1908.069955][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1908.069955][   T73] 
[ 1908.072069][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1908.072069][   T73]      netdev_get_by_index+0x5e/0x80
[ 1908.072069][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1908.072069][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1908.072069][   T73]      ip6_route_add+0x1c/0x140
[ 1908.072069][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1908.072069][   T73]      addrconf_add_dev+0xe2/0x170
[ 1908.072069][   T73]      inet6_addr_add+0x12f/0xa40
[ 1908.072069][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1908.072069][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1908.072069][   T73]      netlink_rcv_skb+0x130/0x360
[ 1908.072069][   T73]      netlink_unicast+0x449/0x710
[ 1908.072069][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1908.072069][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1908.072069][   T73]      ___sys_sendmsg+0xee/0x170
[ 1908.072069][   T73]      __sys_sendmsg+0xcd/0x170
[ 1908.072069][   T73]      do_syscall_64+0xc6/0x1e0
[ 1908.072069][   T73] 
[ 1908.074186][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1908.074186][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1908.074186][   T73]      ipv6_find_idev+0x102/0x170
[ 1908.074186][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1908.074186][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1908.074186][   T73]      netlink_rcv_skb+0x130/0x360
[ 1908.074186][   T73]      netlink_unicast+0x449/0x710
[ 1908.074186][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1908.074186][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1908.074186][   T73]      ___sys_sendmsg+0xee/0x170
[ 1908.074186][   T73]      __sys_sendmsg+0xcd/0x170
[ 1908.074186][   T73]      do_syscall_64+0xc6/0x1e0
[ 1908.074186][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1908.074186][   T73] 
[ 1908.075800][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1908.075800][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1908.075800][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1908.075800][   T73]      ipv6_find_idev+0x102/0x170
[ 1908.075800][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1908.075800][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1908.075800][   T73]      netlink_rcv_skb+0x130/0x360
[ 1908.075800][   T73]      netlink_unicast+0x449/0x710
[ 1908.075800][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1908.075800][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1908.075800][   T73]      ___sys_sendmsg+0xee/0x170
[ 1908.075800][   T73]      __sys_sendmsg+0xcd/0x170
[ 1908.075800][   T73]      do_syscall_64+0xc6/0x1e0
[ 1908.075800][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1908.075800][   T73] 
[ 1908.077595][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1908.077905][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1908.077905][   T73]      netdev_get_by_index+0x5e/0x80
[ 1908.077905][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1908.077905][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1908.077905][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1908.077905][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1908.077905][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1908.077905][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1908.077905][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1908.077905][   T73]      addrconf_dad_begin+0x310/0x670
[ 1908.077905][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1908.077905][   T73]      process_one_work+0x84d/0x18a0
[ 1908.077905][   T73]      worker_thread+0x587/0xd30
[ 1908.077905][   T73]      kthread+0x28a/0x350
[ 1908.077905][   T73]      ret_from_fork+0x31/0x70
[ 1908.077905][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1908.077905][   T73] 
[ 1908.079918][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1908.079918][   T73]      netdev_get_by_index+0x5e/0x80
[ 1908.079918][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1908.079918][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1908.079918][   T73]      ip6_route_add+0x1c/0x140
[ 1908.079918][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1908.079918][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1908.079918][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1908.079918][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1908.079918][   T73]      netlink_rcv_skb+0x130/0x360
[ 1908.079918][   T73]      netlink_unicast+0x449/0x710
[ 1908.079918][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1908.079918][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1908.079918][   T73]      ___sys_sendmsg+0xee/0x170
[ 1908.079918][   T73]      __sys_sendmsg+0xcd/0x170
[ 1908.079918][   T73]      do_syscall_64+0xc6/0x1e0
[ 1908.079918][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1908.079918][   T73] 
[ 1908.082019][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1908.082019][   T73]      netdev_get_by_index+0x5e/0x80
[ 1908.082019][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1908.082019][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1908.082019][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1908.082019][   T73]      ipv6_add_addr+0x411/0x2000
[ 1908.082019][   T73]      inet6_addr_add+0x30e/0xa40
[ 1908.082019][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1908.082019][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1908.082019][   T73]      netlink_rcv_skb+0x130/0x360
[ 1908.082019][   T73]      netlink_unicast+0x449/0x710
[ 1908.082019][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1908.082019][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1908.082019][   T73]      ___sys_sendmsg+0xee/0x170
[ 1908.082019][   T73]      __sys_sendmsg+0xcd/0x170
[ 1908.082019][   T73]      do_syscall_64+0xc6/0x1e0
[ 1908.082019][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1908.082019][   T73] 
[ 1908.084128][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1908.084128][   T73]      netdev_get_by_index+0x5e/0x80
[ 1908.084128][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1908.084128][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1908.084128][   T73]      ip6_route_add+0x1c/0x140
[ 1908.084128][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1908.084128][   T73]      addrconf_add_dev+0xe2/0x170
[ 1908.084128][   T73]      inet6_addr_add+0x12f/0xa40
[ 1908.084128][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1908.084128][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1908.084128][   T73]      netlink_rcv_skb+0x130/0x360
[ 1908.084128][   T73]      netlink_unicast+0x449/0x710
[ 1908.084128][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1908.084128][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1908.084128][   T73]      ___sys_sendmsg+0xee/0x170
[ 1908.084128][   T73]      __sys_sendmsg+0xcd/0x170
[ 1908.084128][   T73]      do_syscall_64+0xc6/0x1e0
[ 1908.084128][   T73] 
[ 1908.086208][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1908.086208][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1908.086208][   T73]      ipv6_find_idev+0x102/0x170
[ 1908.086208][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1908.086208][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1908.086208][   T73]      netlink_rcv_skb+0x130/0x360
[ 1908.086208][   T73]      netlink_unicast+0x449/0x710
[ 1908.086208][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1908.086208][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1908.086208][   T73]      ___sys_sendmsg+0xee/0x170
[ 1908.086208][   T73]      __sys_sendmsg+0xcd/0x170
[ 1908.086208][   T73]      do_syscall_64+0xc6/0x1e0
[ 1908.086208][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1908.086208][   T73] 
[ 1908.087830][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1908.087830][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1908.087830][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1908.087830][   T73]      ipv6_find_idev+0x102/0x170
[ 1908.087830][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1908.087830][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1908.087830][   T73]      netlink_rcv_skb+0x130/0x360
[ 1908.087830][   T73]      netlink_unicast+0x449/0x710
[ 1908.087830][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1908.087830][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1908.087830][   T73]      ___sys_sendmsg+0xee/0x170
[ 1908.087830][   T73]      __sys_sendmsg+0xcd/0x170
[ 1908.087830][   T73]      do_syscall_64+0xc6/0x1e0
[ 1908.087830][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1908.087830][   T73] 
[ 1908.089609][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1908.089904][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1908.089904][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1908.089904][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1908.089904][   T73]      fib6_nh_init+0xa22/0x1580
[ 1908.089904][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1908.089904][   T73]      ip6_route_add+0x1c/0x140
[ 1908.089904][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1908.089904][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1908.089904][   T73]      netlink_rcv_skb+0x130/0x360
[ 1908.089904][   T73]      netlink_unicast+0x449/0x710
[ 1908.089904][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1908.089904][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1908.089904][   T73]      ___sys_sendmsg+0xee/0x170
[ 1908.089904][   T73]      __sys_sendmsg+0xcd/0x170
[ 1908.089904][   T73]      do_syscall_64+0xc6/0x1e0
[ 1908.089904][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1908.089904][   T73] 
[ 1908.092022][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1908.092022][   T73]      dst_init+0x84/0x4a0
[ 1908.092022][   T73]      dst_alloc+0x97/0x150
[ 1908.092022][   T73]      ip6_dst_alloc+0x23/0x90
[ 1908.092022][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1908.092022][   T73]      ip6_pol_route+0x56f/0x840
[ 1908.092022][   T73]      fib6_rule_lookup+0x456/0x630
[ 1908.092022][   T73]      ip6_route_input+0x59c/0xa50
[ 1908.092022][   T73]      ipv6_rcv+0x397/0x810
[ 1908.092022][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1908.092022][   T73]      process_backlog+0x101/0x620
[ 1908.092022][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1908.092022][   T73]      net_rx_action+0x495/0xbe0
[ 1908.092022][   T73]      __do_softirq+0x1b5/0x7f6
[ 1908.092022][   T73] 
[ 1908.093804][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1908.093804][   T73]      netdev_get_by_index+0x5e/0x80
[ 1908.093804][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1908.093804][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1908.093804][   T73]      ip6_route_add+0x1c/0x140
[ 1908.093804][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1908.093804][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1908.093804][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1908.093804][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1908.093804][   T73]      netlink_rcv_skb+0x130/0x360
[ 1908.093804][   T73]      netlink_unicast+0x449/0x710
[ 1908.093804][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1908.093804][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1908.093804][   T73]      ___sys_sendmsg+0xee/0x170
[ 1908.093804][   T73]      __sys_sendmsg+0xcd/0x170
[ 1908.093804][   T73]      do_syscall_64+0xc6/0x1e0
[ 1908.093804][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1908.093804][   T73] 
[ 1908.096130][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1908.096130][   T73]      netdev_get_by_index+0x5e/0x80
[ 1908.096130][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1908.096130][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1908.096130][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1908.096130][   T73]      ipv6_add_addr+0x411/0x2000
[ 1908.096130][   T73]      inet6_addr_add+0x30e/0xa40
[ 1908.096130][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1908.096130][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1908.096130][   T73]      netlink_rcv_skb+0x130/0x360
[ 1908.096130][   T73]      netlink_unicast+0x449/0x710
[ 1908.096130][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1908.096130][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1908.096130][   T73]      ___sys_sendmsg+0xee/0x170
[ 1908.096130][   T73]      __sys_sendmsg+0xcd/0x170
[ 1908.096130][   T73]      do_syscall_64+0xc6/0x1e0
[ 1908.096130][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1908.096130][   T73] 
[ 1908.098415][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1908.098415][   T73]      netdev_get_by_index+0x5e/0x80
[ 1908.098415][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1908.098415][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1908.098415][   T73]      ip6_route_add+0x1c/0x140
[ 1908.098415][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1908.098415][   T73]      addrconf_add_dev+0xe2/0x170
[ 1908.098415][   T73]      inet6_addr_add+0x12f/0xa40
[ 1908.098415][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1908.098415][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1908.098415][   T73]      netlink_rcv_skb+0x130/0x360
[ 1908.098415][   T73]      netlink_unicast+0x449/0x710
[ 1908.098415][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1908.098415][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1908.098415][   T73]      ___sys_sendmsg+0xee/0x170
[ 1908.098415][   T73]      __sys_sendmsg+0xcd/0x170
[ 1908.098415][   T73]      do_syscall_64+0xc6/0x1e0
[ 1908.098415][   T73] 
[ 1908.100708][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1908.100708][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1908.100708][   T73]      ipv6_find_idev+0x102/0x170
[ 1908.100708][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1908.100708][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1908.100708][   T73]      netlink_rcv_skb+0x130/0x360
[ 1908.100708][   T73]      netlink_unicast+0x449/0x710
[ 1908.100708][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1908.100708][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1908.100708][   T73]      ___sys_sendmsg+0xee/0x170
[ 1908.100708][   T73]      __sys_sendmsg+0xcd/0x170
[ 1908.100708][   T73]      do_syscall_64+0xc6/0x1e0
[ 1908.100708][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1908.100708][   T73] 
[ 1908.102517][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1908.102517][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1908.102517][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1908.102517][   T73]      ipv6_find_idev+0x102/0x170
[ 1908.102517][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1908.102517][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1908.102517][   T73]      netlink_rcv_skb+0x130/0x360
[ 1908.102517][   T73]      netlink_unicast+0x449/0x710
[ 1908.102517][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1908.102517][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1908.102517][   T73]      ___sys_sendmsg+0xee/0x170
[ 1908.102517][   T73]      __sys_sendmsg+0xcd/0x170
[ 1908.102517][   T73]      do_syscall_64+0xc6/0x1e0
[ 1908.102517][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1908.102517][   T73] 
[ 1908.104424][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1908.105235][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1908.105235][   T73]      netdev_get_by_index+0x5e/0x80
[ 1908.105235][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1908.105235][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1908.105235][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1908.105235][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1908.105235][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1908.105235][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1908.105235][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1908.105235][   T73]      addrconf_dad_begin+0x310/0x670
[ 1908.105235][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1908.105235][   T73]      process_one_work+0x84d/0x18a0
[ 1908.105235][   T73]      worker_thread+0x587/0xd30
[ 1908.105235][   T73]      kthread+0x28a/0x350
[ 1908.105235][   T73]      ret_from_fork+0x31/0x70
[ 1908.105235][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1908.105235][   T73] 
[ 1908.107333][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1908.107333][   T73]      netdev_get_by_index+0x5e/0x80
[ 1908.107333][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1908.107333][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1908.107333][   T73]      ip6_route_add+0x1c/0x140
[ 1908.107333][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1908.107333][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1908.107333][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1908.107333][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1908.107333][   T73]      netlink_rcv_skb+0x130/0x360
[ 1908.107333][   T73]      netlink_unicast+0x449/0x710
[ 1908.107333][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1908.107333][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1908.107333][   T73]      ___sys_sendmsg+0xee/0x170
[ 1908.107333][   T73]      __sys_sendmsg+0xcd/0x170
[ 1908.107333][   T73]      do_syscall_64+0xc6/0x1e0
[ 1908.107333][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1908.107333][   T73] 
[ 1908.109520][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1908.109520][   T73]      netdev_get_by_index+0x5e/0x80
[ 1908.109520][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1908.109520][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1908.109520][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1908.109520][   T73]      ipv6_add_addr+0x411/0x2000
[ 1908.109520][   T73]      inet6_addr_add+0x30e/0xa40
[ 1908.109520][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1908.109520][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1908.109520][   T73]      netlink_rcv_skb+0x130/0x360
[ 1908.109520][   T73]      netlink_unicast+0x449/0x710
[ 1908.109520][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1908.109520][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1908.109520][   T73]      ___sys_sendmsg+0xee/0x170
[ 1908.109520][   T73]      __sys_sendmsg+0xcd/0x170
[ 1908.109520][   T73]      do_syscall_64+0xc6/0x1e0
[ 1908.109520][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1908.109520][   T73] 
[ 1908.111821][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1908.111821][   T73]      netdev_get_by_index+0x5e/0x80
[ 1908.111821][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1908.111821][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1908.111821][   T73]      ip6_route_add+0x1c/0x140
[ 1908.111821][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1908.111821][   T73]      addrconf_add_dev+0xe2/0x170
[ 1908.111821][   T73]      inet6_addr_add+0x12f/0xa40
[ 1908.111821][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1908.111821][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1908.111821][   T73]      netlink_rcv_skb+0x130/0x360
[ 1908.111821][   T73]      netlink_unicast+0x449/0x710
[ 1908.111821][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1908.111821][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1908.111821][   T73]      ___sys_sendmsg+0xee/0x170
[ 1908.111821][   T73]      __sys_sendmsg+0xcd/0x170
[ 1908.111821][   T73]      do_syscall_64+0xc6/0x1e0
[ 1908.111821][   T73] 
[ 1908.114076][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1908.114076][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1908.114076][   T73]      ipv6_find_idev+0x102/0x170
[ 1908.114076][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1908.114076][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1908.114076][   T73]      netlink_rcv_skb+0x130/0x360
[ 1908.114076][   T73]      netlink_unicast+0x449/0x710
[ 1908.114076][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1908.114076][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1908.114076][   T73]      ___sys_sendmsg+0xee/0x170
[ 1908.114076][   T73]      __sys_sendmsg+0xcd/0x170
[ 1908.114076][   T73]      do_syscall_64+0xc6/0x1e0
[ 1908.114076][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1908.114076][   T73] 
[ 1908.115900][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1908.115900][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1908.115900][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1908.115900][   T73]      ipv6_find_idev+0x102/0x170
[ 1908.115900][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1908.115900][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1908.115900][   T73]      netlink_rcv_skb+0x130/0x360
[ 1908.115900][   T73]      netlink_unicast+0x449/0x710
[ 1908.115900][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1908.115900][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1908.115900][   T73]      ___sys_sendmsg+0xee/0x170
[ 1908.115900][   T73]      __sys_sendmsg+0xcd/0x170
[ 1908.115900][   T73]      do_syscall_64+0xc6/0x1e0
[ 1908.115900][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1908.115900][   T73] 
[ 1918.359783][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1918.360208][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1918.360208][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1918.360208][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1918.360208][   T73]      fib6_nh_init+0xa22/0x1580
[ 1918.360208][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1918.360208][   T73]      ip6_route_add+0x1c/0x140
[ 1918.360208][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1918.360208][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1918.360208][   T73]      netlink_rcv_skb+0x130/0x360
[ 1918.360208][   T73]      netlink_unicast+0x449/0x710
[ 1918.360208][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1918.360208][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1918.360208][   T73]      ___sys_sendmsg+0xee/0x170
[ 1918.360208][   T73]      __sys_sendmsg+0xcd/0x170
[ 1918.360208][   T73]      do_syscall_64+0xc6/0x1e0
[ 1918.360208][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1918.360208][   T73] 
[ 1918.362235][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1918.362235][   T73]      dst_init+0x84/0x4a0
[ 1918.362235][   T73]      dst_alloc+0x97/0x150
[ 1918.362235][   T73]      ip6_dst_alloc+0x23/0x90
[ 1918.362235][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1918.362235][   T73]      ip6_pol_route+0x56f/0x840
[ 1918.362235][   T73]      fib6_rule_lookup+0x456/0x630
[ 1918.362235][   T73]      ip6_route_input+0x59c/0xa50
[ 1918.362235][   T73]      ipv6_rcv+0x397/0x810
[ 1918.362235][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1918.362235][   T73]      process_backlog+0x101/0x620
[ 1918.362235][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1918.362235][   T73]      net_rx_action+0x495/0xbe0
[ 1918.362235][   T73]      __do_softirq+0x1b5/0x7f6
[ 1918.362235][   T73] 
[ 1918.363978][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1918.363978][   T73]      netdev_get_by_index+0x5e/0x80
[ 1918.363978][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1918.363978][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1918.363978][   T73]      ip6_route_add+0x1c/0x140
[ 1918.363978][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1918.363978][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1918.363978][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1918.363978][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1918.363978][   T73]      netlink_rcv_skb+0x130/0x360
[ 1918.363978][   T73]      netlink_unicast+0x449/0x710
[ 1918.363978][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1918.363978][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1918.363978][   T73]      ___sys_sendmsg+0xee/0x170
[ 1918.363978][   T73]      __sys_sendmsg+0xcd/0x170
[ 1918.363978][   T73]      do_syscall_64+0xc6/0x1e0
[ 1918.363978][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1918.363978][   T73] 
[ 1918.366151][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1918.366151][   T73]      netdev_get_by_index+0x5e/0x80
[ 1918.366151][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1918.366151][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1918.366151][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1918.366151][   T73]      ipv6_add_addr+0x411/0x2000
[ 1918.366151][   T73]      inet6_addr_add+0x30e/0xa40
[ 1918.366151][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1918.366151][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1918.366151][   T73]      netlink_rcv_skb+0x130/0x360
[ 1918.366151][   T73]      netlink_unicast+0x449/0x710
[ 1918.366151][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1918.366151][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1918.366151][   T73]      ___sys_sendmsg+0xee/0x170
[ 1918.366151][   T73]      __sys_sendmsg+0xcd/0x170
[ 1918.366151][   T73]      do_syscall_64+0xc6/0x1e0
[ 1918.366151][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1918.366151][   T73] 
[ 1918.368887][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1918.368887][   T73]      netdev_get_by_index+0x5e/0x80
[ 1918.368887][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1918.368887][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1918.368887][   T73]      ip6_route_add+0x1c/0x140
[ 1918.368887][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1918.368887][   T73]      addrconf_add_dev+0xe2/0x170
[ 1918.368887][   T73]      inet6_addr_add+0x12f/0xa40
[ 1918.368887][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1918.368887][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1918.368887][   T73]      netlink_rcv_skb+0x130/0x360
[ 1918.368887][   T73]      netlink_unicast+0x449/0x710
[ 1918.368887][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1918.368887][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1918.368887][   T73]      ___sys_sendmsg+0xee/0x170
[ 1918.368887][   T73]      __sys_sendmsg+0xcd/0x170
[ 1918.368887][   T73]      do_syscall_64+0xc6/0x1e0
[ 1918.368887][   T73] 
[ 1918.371029][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1918.371029][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1918.371029][   T73]      ipv6_find_idev+0x102/0x170
[ 1918.371029][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1918.371029][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1918.371029][   T73]      netlink_rcv_skb+0x130/0x360
[ 1918.371029][   T73]      netlink_unicast+0x449/0x710
[ 1918.371029][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1918.371029][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1918.371029][   T73]      ___sys_sendmsg+0xee/0x170
[ 1918.371029][   T73]      __sys_sendmsg+0xcd/0x170
[ 1918.371029][   T73]      do_syscall_64+0xc6/0x1e0
[ 1918.371029][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1918.371029][   T73] 
[ 1918.372706][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1918.372706][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1918.372706][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1918.372706][   T73]      ipv6_find_idev+0x102/0x170
[ 1918.372706][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1918.372706][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1918.372706][   T73]      netlink_rcv_skb+0x130/0x360
[ 1918.372706][   T73]      netlink_unicast+0x449/0x710
[ 1918.372706][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1918.372706][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1918.372706][   T73]      ___sys_sendmsg+0xee/0x170
[ 1918.372706][   T73]      __sys_sendmsg+0xcd/0x170
[ 1918.372706][   T73]      do_syscall_64+0xc6/0x1e0
[ 1918.372706][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1918.372706][   T73] 
[ 1918.374544][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1918.374861][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1918.374861][   T73]      netdev_get_by_index+0x5e/0x80
[ 1918.374861][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1918.374861][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1918.374861][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1918.374861][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1918.374861][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1918.374861][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1918.374861][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1918.374861][   T73]      addrconf_dad_begin+0x310/0x670
[ 1918.374861][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1918.374861][   T73]      process_one_work+0x84d/0x18a0
[ 1918.374861][   T73]      worker_thread+0x587/0xd30
[ 1918.374861][   T73]      kthread+0x28a/0x350
[ 1918.374861][   T73]      ret_from_fork+0x31/0x70
[ 1918.374861][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1918.374861][   T73] 
[ 1918.376962][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1918.376962][   T73]      netdev_get_by_index+0x5e/0x80
[ 1918.376962][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1918.376962][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1918.376962][   T73]      ip6_route_add+0x1c/0x140
[ 1918.376962][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1918.376962][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1918.376962][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1918.376962][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1918.376962][   T73]      netlink_rcv_skb+0x130/0x360
[ 1918.376962][   T73]      netlink_unicast+0x449/0x710
[ 1918.376962][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1918.376962][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1918.376962][   T73]      ___sys_sendmsg+0xee/0x170
[ 1918.376962][   T73]      __sys_sendmsg+0xcd/0x170
[ 1918.376962][   T73]      do_syscall_64+0xc6/0x1e0
[ 1918.376962][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1918.376962][   T73] 
[ 1918.379127][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1918.379127][   T73]      netdev_get_by_index+0x5e/0x80
[ 1918.379127][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1918.379127][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1918.379127][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1918.379127][   T73]      ipv6_add_addr+0x411/0x2000
[ 1918.379127][   T73]      inet6_addr_add+0x30e/0xa40
[ 1918.379127][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1918.379127][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1918.379127][   T73]      netlink_rcv_skb+0x130/0x360
[ 1918.379127][   T73]      netlink_unicast+0x449/0x710
[ 1918.379127][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1918.379127][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1918.379127][   T73]      ___sys_sendmsg+0xee/0x170
[ 1918.379127][   T73]      __sys_sendmsg+0xcd/0x170
[ 1918.379127][   T73]      do_syscall_64+0xc6/0x1e0
[ 1918.379127][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1918.379127][   T73] 
[ 1918.381213][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1918.381213][   T73]      netdev_get_by_index+0x5e/0x80
[ 1918.381213][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1918.381213][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1918.381213][   T73]      ip6_route_add+0x1c/0x140
[ 1918.381213][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1918.381213][   T73]      addrconf_add_dev+0xe2/0x170
[ 1918.381213][   T73]      inet6_addr_add+0x12f/0xa40
[ 1918.381213][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1918.381213][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1918.381213][   T73]      netlink_rcv_skb+0x130/0x360
[ 1918.381213][   T73]      netlink_unicast+0x449/0x710
[ 1918.381213][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1918.381213][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1918.381213][   T73]      ___sys_sendmsg+0xee/0x170
[ 1918.381213][   T73]      __sys_sendmsg+0xcd/0x170
[ 1918.381213][   T73]      do_syscall_64+0xc6/0x1e0
[ 1918.381213][   T73] 
[ 1918.383279][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1918.383279][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1918.383279][   T73]      ipv6_find_idev+0x102/0x170
[ 1918.383279][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1918.383279][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1918.383279][   T73]      netlink_rcv_skb+0x130/0x360
[ 1918.383279][   T73]      netlink_unicast+0x449/0x710
[ 1918.383279][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1918.383279][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1918.383279][   T73]      ___sys_sendmsg+0xee/0x170
[ 1918.383279][   T73]      __sys_sendmsg+0xcd/0x170
[ 1918.383279][   T73]      do_syscall_64+0xc6/0x1e0
[ 1918.383279][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1918.383279][   T73] 
[ 1918.384882][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1918.384882][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1918.384882][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1918.384882][   T73]      ipv6_find_idev+0x102/0x170
[ 1918.384882][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1918.384882][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1918.384882][   T73]      netlink_rcv_skb+0x130/0x360
[ 1918.384882][   T73]      netlink_unicast+0x449/0x710
[ 1918.384882][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1918.384882][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1918.384882][   T73]      ___sys_sendmsg+0xee/0x170
[ 1918.384882][   T73]      __sys_sendmsg+0xcd/0x170
[ 1918.384882][   T73]      do_syscall_64+0xc6/0x1e0
[ 1918.384882][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1918.384882][   T73] 
[ 1918.386657][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1918.386933][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1918.386933][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1918.386933][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1918.386933][   T73]      fib6_nh_init+0xa22/0x1580
[ 1918.386933][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1918.386933][   T73]      ip6_route_add+0x1c/0x140
[ 1918.386933][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1918.386933][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1918.386933][   T73]      netlink_rcv_skb+0x130/0x360
[ 1918.386933][   T73]      netlink_unicast+0x449/0x710
[ 1918.386933][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1918.386933][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1918.386933][   T73]      ___sys_sendmsg+0xee/0x170
[ 1918.386933][   T73]      __sys_sendmsg+0xcd/0x170
[ 1918.386933][   T73]      do_syscall_64+0xc6/0x1e0
[ 1918.386933][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1918.386933][   T73] 
[ 1918.389081][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1918.389081][   T73]      dst_init+0x84/0x4a0
[ 1918.389081][   T73]      dst_alloc+0x97/0x150
[ 1918.389081][   T73]      ip6_dst_alloc+0x23/0x90
[ 1918.389081][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1918.389081][   T73]      ip6_pol_route+0x56f/0x840
[ 1918.389081][   T73]      fib6_rule_lookup+0x456/0x630
[ 1918.389081][   T73]      ip6_route_input+0x59c/0xa50
[ 1918.389081][   T73]      ipv6_rcv+0x397/0x810
[ 1918.389081][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1918.389081][   T73]      process_backlog+0x101/0x620
[ 1918.389081][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1918.389081][   T73]      net_rx_action+0x495/0xbe0
[ 1918.389081][   T73]      __do_softirq+0x1b5/0x7f6
[ 1918.389081][   T73] 
[ 1918.390965][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1918.390965][   T73]      netdev_get_by_index+0x5e/0x80
[ 1918.390965][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1918.390965][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1918.390965][   T73]      ip6_route_add+0x1c/0x140
[ 1918.390965][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1918.390965][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1918.390965][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1918.390965][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1918.390965][   T73]      netlink_rcv_skb+0x130/0x360
[ 1918.390965][   T73]      netlink_unicast+0x449/0x710
[ 1918.390965][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1918.390965][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1918.390965][   T73]      ___sys_sendmsg+0xee/0x170
[ 1918.390965][   T73]      __sys_sendmsg+0xcd/0x170
[ 1918.390965][   T73]      do_syscall_64+0xc6/0x1e0
[ 1918.390965][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1918.390965][   T73] 
[ 1918.393631][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1918.393631][   T73]      netdev_get_by_index+0x5e/0x80
[ 1918.393631][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1918.393631][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1918.393631][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1918.393631][   T73]      ipv6_add_addr+0x411/0x2000
[ 1918.393631][   T73]      inet6_addr_add+0x30e/0xa40
[ 1918.393631][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1918.393631][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1918.393631][   T73]      netlink_rcv_skb+0x130/0x360
[ 1918.393631][   T73]      netlink_unicast+0x449/0x710
[ 1918.393631][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1918.393631][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1918.393631][   T73]      ___sys_sendmsg+0xee/0x170
[ 1918.393631][   T73]      __sys_sendmsg+0xcd/0x170
[ 1918.393631][   T73]      do_syscall_64+0xc6/0x1e0
[ 1918.393631][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1918.393631][   T73] 
[ 1918.396038][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1918.396038][   T73]      netdev_get_by_index+0x5e/0x80
[ 1918.396038][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1918.396038][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1918.396038][   T73]      ip6_route_add+0x1c/0x140
[ 1918.396038][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1918.396038][   T73]      addrconf_add_dev+0xe2/0x170
[ 1918.396038][   T73]      inet6_addr_add+0x12f/0xa40
[ 1918.396038][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1918.396038][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1918.396038][   T73]      netlink_rcv_skb+0x130/0x360
[ 1918.396038][   T73]      netlink_unicast+0x449/0x710
[ 1918.396038][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1918.396038][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1918.396038][   T73]      ___sys_sendmsg+0xee/0x170
[ 1918.396038][   T73]      __sys_sendmsg+0xcd/0x170
[ 1918.396038][   T73]      do_syscall_64+0xc6/0x1e0
[ 1918.396038][   T73] 
[ 1918.398325][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1918.398325][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1918.398325][   T73]      ipv6_find_idev+0x102/0x170
[ 1918.398325][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1918.398325][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1918.398325][   T73]      netlink_rcv_skb+0x130/0x360
[ 1918.398325][   T73]      netlink_unicast+0x449/0x710
[ 1918.398325][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1918.398325][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1918.398325][   T73]      ___sys_sendmsg+0xee/0x170
[ 1918.398325][   T73]      __sys_sendmsg+0xcd/0x170
[ 1918.398325][   T73]      do_syscall_64+0xc6/0x1e0
[ 1918.398325][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1918.398325][   T73] 
[ 1918.400111][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1918.400111][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1918.400111][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1918.400111][   T73]      ipv6_find_idev+0x102/0x170
[ 1918.400111][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1918.400111][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1918.400111][   T73]      netlink_rcv_skb+0x130/0x360
[ 1918.400111][   T73]      netlink_unicast+0x449/0x710
[ 1918.400111][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1918.400111][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1918.400111][   T73]      ___sys_sendmsg+0xee/0x170
[ 1918.400111][   T73]      __sys_sendmsg+0xcd/0x170
[ 1918.400111][   T73]      do_syscall_64+0xc6/0x1e0
[ 1918.400111][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1918.400111][   T73] 
[ 1918.402448][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1918.403167][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1918.403167][   T73]      netdev_get_by_index+0x5e/0x80
[ 1918.403167][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1918.403167][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1918.403167][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1918.403167][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1918.403167][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1918.403167][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1918.403167][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1918.403167][   T73]      addrconf_dad_begin+0x310/0x670
[ 1918.403167][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1918.403167][   T73]      process_one_work+0x84d/0x18a0
[ 1918.403167][   T73]      worker_thread+0x587/0xd30
[ 1918.403167][   T73]      kthread+0x28a/0x350
[ 1918.403167][   T73]      ret_from_fork+0x31/0x70
[ 1918.403167][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1918.403167][   T73] 
[ 1918.405159][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1918.405159][   T73]      netdev_get_by_index+0x5e/0x80
[ 1918.405159][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1918.405159][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1918.405159][   T73]      ip6_route_add+0x1c/0x140
[ 1918.405159][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1918.405159][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1918.405159][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1918.405159][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1918.405159][   T73]      netlink_rcv_skb+0x130/0x360
[ 1918.405159][   T73]      netlink_unicast+0x449/0x710
[ 1918.405159][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1918.405159][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1918.405159][   T73]      ___sys_sendmsg+0xee/0x170
[ 1918.405159][   T73]      __sys_sendmsg+0xcd/0x170
[ 1918.405159][   T73]      do_syscall_64+0xc6/0x1e0
[ 1918.405159][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1918.405159][   T73] 
[ 1918.407241][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1918.407241][   T73]      netdev_get_by_index+0x5e/0x80
[ 1918.407241][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1918.407241][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1918.407241][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1918.407241][   T73]      ipv6_add_addr+0x411/0x2000
[ 1918.407241][   T73]      inet6_addr_add+0x30e/0xa40
[ 1918.407241][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1918.407241][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1918.407241][   T73]      netlink_rcv_skb+0x130/0x360
[ 1918.407241][   T73]      netlink_unicast+0x449/0x710
[ 1918.407241][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1918.407241][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1918.407241][   T73]      ___sys_sendmsg+0xee/0x170
[ 1918.407241][   T73]      __sys_sendmsg+0xcd/0x170
[ 1918.407241][   T73]      do_syscall_64+0xc6/0x1e0
[ 1918.407241][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1918.407241][   T73] 
[ 1918.409312][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1918.409312][   T73]      netdev_get_by_index+0x5e/0x80
[ 1918.409312][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1918.409312][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1918.409312][   T73]      ip6_route_add+0x1c/0x140
[ 1918.409312][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1918.409312][   T73]      addrconf_add_dev+0xe2/0x170
[ 1918.409312][   T73]      inet6_addr_add+0x12f/0xa40
[ 1918.409312][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1918.409312][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1918.409312][   T73]      netlink_rcv_skb+0x130/0x360
[ 1918.409312][   T73]      netlink_unicast+0x449/0x710
[ 1918.409312][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1918.409312][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1918.409312][   T73]      ___sys_sendmsg+0xee/0x170
[ 1918.409312][   T73]      __sys_sendmsg+0xcd/0x170
[ 1918.409312][   T73]      do_syscall_64+0xc6/0x1e0
[ 1918.409312][   T73] 
[ 1918.411598][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1918.411598][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1918.411598][   T73]      ipv6_find_idev+0x102/0x170
[ 1918.411598][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1918.411598][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1918.411598][   T73]      netlink_rcv_skb+0x130/0x360
[ 1918.411598][   T73]      netlink_unicast+0x449/0x710
[ 1918.411598][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1918.411598][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1918.411598][   T73]      ___sys_sendmsg+0xee/0x170
[ 1918.411598][   T73]      __sys_sendmsg+0xcd/0x170
[ 1918.411598][   T73]      do_syscall_64+0xc6/0x1e0
[ 1918.411598][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1918.411598][   T73] 
[ 1918.413457][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1918.413457][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1918.413457][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1918.413457][   T73]      ipv6_find_idev+0x102/0x170
[ 1918.413457][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1918.413457][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1918.413457][   T73]      netlink_rcv_skb+0x130/0x360
[ 1918.413457][   T73]      netlink_unicast+0x449/0x710
[ 1918.413457][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1918.413457][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1918.413457][   T73]      ___sys_sendmsg+0xee/0x170
[ 1918.413457][   T73]      __sys_sendmsg+0xcd/0x170
[ 1918.413457][   T73]      do_syscall_64+0xc6/0x1e0
[ 1918.413457][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1918.413457][   T73] 
[ 1928.479774][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1928.480244][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1928.480244][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1928.480244][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1928.480244][   T73]      fib6_nh_init+0xa22/0x1580
[ 1928.480244][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1928.480244][   T73]      ip6_route_add+0x1c/0x140
[ 1928.480244][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1928.480244][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1928.480244][   T73]      netlink_rcv_skb+0x130/0x360
[ 1928.480244][   T73]      netlink_unicast+0x449/0x710
[ 1928.480244][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1928.480244][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1928.480244][   T73]      ___sys_sendmsg+0xee/0x170
[ 1928.480244][   T73]      __sys_sendmsg+0xcd/0x170
[ 1928.480244][   T73]      do_syscall_64+0xc6/0x1e0
[ 1928.480244][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1928.480244][   T73] 
[ 1928.482226][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1928.482226][   T73]      dst_init+0x84/0x4a0
[ 1928.482226][   T73]      dst_alloc+0x97/0x150
[ 1928.482226][   T73]      ip6_dst_alloc+0x23/0x90
[ 1928.482226][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1928.482226][   T73]      ip6_pol_route+0x56f/0x840
[ 1928.482226][   T73]      fib6_rule_lookup+0x456/0x630
[ 1928.482226][   T73]      ip6_route_input+0x59c/0xa50
[ 1928.482226][   T73]      ipv6_rcv+0x397/0x810
[ 1928.482226][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1928.482226][   T73]      process_backlog+0x101/0x620
[ 1928.482226][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1928.482226][   T73]      net_rx_action+0x495/0xbe0
[ 1928.482226][   T73]      __do_softirq+0x1b5/0x7f6
[ 1928.482226][   T73] 
[ 1928.483924][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1928.483924][   T73]      netdev_get_by_index+0x5e/0x80
[ 1928.483924][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1928.483924][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1928.483924][   T73]      ip6_route_add+0x1c/0x140
[ 1928.483924][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1928.483924][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1928.483924][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1928.483924][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1928.483924][   T73]      netlink_rcv_skb+0x130/0x360
[ 1928.483924][   T73]      netlink_unicast+0x449/0x710
[ 1928.483924][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1928.483924][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1928.483924][   T73]      ___sys_sendmsg+0xee/0x170
[ 1928.483924][   T73]      __sys_sendmsg+0xcd/0x170
[ 1928.483924][   T73]      do_syscall_64+0xc6/0x1e0
[ 1928.483924][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1928.483924][   T73] 
[ 1928.486106][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1928.486106][   T73]      netdev_get_by_index+0x5e/0x80
[ 1928.486106][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1928.486106][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1928.486106][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1928.486106][   T73]      ipv6_add_addr+0x411/0x2000
[ 1928.486106][   T73]      inet6_addr_add+0x30e/0xa40
[ 1928.486106][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1928.486106][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1928.486106][   T73]      netlink_rcv_skb+0x130/0x360
[ 1928.486106][   T73]      netlink_unicast+0x449/0x710
[ 1928.486106][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1928.486106][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1928.486106][   T73]      ___sys_sendmsg+0xee/0x170
[ 1928.486106][   T73]      __sys_sendmsg+0xcd/0x170
[ 1928.486106][   T73]      do_syscall_64+0xc6/0x1e0
[ 1928.486106][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1928.486106][   T73] 
[ 1928.488186][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1928.488186][   T73]      netdev_get_by_index+0x5e/0x80
[ 1928.488186][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1928.488186][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1928.488186][   T73]      ip6_route_add+0x1c/0x140
[ 1928.488186][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1928.488186][   T73]      addrconf_add_dev+0xe2/0x170
[ 1928.488186][   T73]      inet6_addr_add+0x12f/0xa40
[ 1928.488186][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1928.488186][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1928.488186][   T73]      netlink_rcv_skb+0x130/0x360
[ 1928.488186][   T73]      netlink_unicast+0x449/0x710
[ 1928.488186][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1928.488186][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1928.488186][   T73]      ___sys_sendmsg+0xee/0x170
[ 1928.488186][   T73]      __sys_sendmsg+0xcd/0x170
[ 1928.488186][   T73]      do_syscall_64+0xc6/0x1e0
[ 1928.488186][   T73] 
[ 1928.490146][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1928.490146][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1928.490146][   T73]      ipv6_find_idev+0x102/0x170
[ 1928.490146][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1928.490146][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1928.490146][   T73]      netlink_rcv_skb+0x130/0x360
[ 1928.490146][   T73]      netlink_unicast+0x449/0x710
[ 1928.490146][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1928.490146][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1928.490146][   T73]      ___sys_sendmsg+0xee/0x170
[ 1928.490146][   T73]      __sys_sendmsg+0xcd/0x170
[ 1928.490146][   T73]      do_syscall_64+0xc6/0x1e0
[ 1928.490146][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1928.490146][   T73] 
[ 1928.491677][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1928.491677][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1928.491677][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1928.491677][   T73]      ipv6_find_idev+0x102/0x170
[ 1928.491677][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1928.491677][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1928.491677][   T73]      netlink_rcv_skb+0x130/0x360
[ 1928.491677][   T73]      netlink_unicast+0x449/0x710
[ 1928.491677][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1928.491677][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1928.491677][   T73]      ___sys_sendmsg+0xee/0x170
[ 1928.491677][   T73]      __sys_sendmsg+0xcd/0x170
[ 1928.491677][   T73]      do_syscall_64+0xc6/0x1e0
[ 1928.491677][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1928.491677][   T73] 
[ 1928.493348][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1928.493620][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1928.493620][   T73]      netdev_get_by_index+0x5e/0x80
[ 1928.493620][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1928.493620][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1928.493620][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1928.493620][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1928.493620][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1928.493620][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1928.493620][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1928.493620][   T73]      addrconf_dad_begin+0x310/0x670
[ 1928.493620][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1928.493620][   T73]      process_one_work+0x84d/0x18a0
[ 1928.493620][   T73]      worker_thread+0x587/0xd30
[ 1928.493620][   T73]      kthread+0x28a/0x350
[ 1928.493620][   T73]      ret_from_fork+0x31/0x70
[ 1928.493620][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1928.493620][   T73] 
[ 1928.495944][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1928.495944][   T73]      netdev_get_by_index+0x5e/0x80
[ 1928.495944][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1928.495944][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1928.495944][   T73]      ip6_route_add+0x1c/0x140
[ 1928.495944][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1928.495944][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1928.495944][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1928.495944][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1928.495944][   T73]      netlink_rcv_skb+0x130/0x360
[ 1928.495944][   T73]      netlink_unicast+0x449/0x710
[ 1928.495944][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1928.495944][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1928.495944][   T73]      ___sys_sendmsg+0xee/0x170
[ 1928.495944][   T73]      __sys_sendmsg+0xcd/0x170
[ 1928.495944][   T73]      do_syscall_64+0xc6/0x1e0
[ 1928.495944][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1928.495944][   T73] 
[ 1928.497955][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1928.497955][   T73]      netdev_get_by_index+0x5e/0x80
[ 1928.497955][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1928.497955][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1928.497955][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1928.497955][   T73]      ipv6_add_addr+0x411/0x2000
[ 1928.497955][   T73]      inet6_addr_add+0x30e/0xa40
[ 1928.497955][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1928.497955][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1928.497955][   T73]      netlink_rcv_skb+0x130/0x360
[ 1928.497955][   T73]      netlink_unicast+0x449/0x710
[ 1928.497955][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1928.497955][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1928.497955][   T73]      ___sys_sendmsg+0xee/0x170
[ 1928.497955][   T73]      __sys_sendmsg+0xcd/0x170
[ 1928.497955][   T73]      do_syscall_64+0xc6/0x1e0
[ 1928.497955][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1928.497955][   T73] 
[ 1928.499942][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1928.499942][   T73]      netdev_get_by_index+0x5e/0x80
[ 1928.499942][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1928.499942][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1928.499942][   T73]      ip6_route_add+0x1c/0x140
[ 1928.499942][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1928.499942][   T73]      addrconf_add_dev+0xe2/0x170
[ 1928.499942][   T73]      inet6_addr_add+0x12f/0xa40
[ 1928.499942][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1928.499942][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1928.499942][   T73]      netlink_rcv_skb+0x130/0x360
[ 1928.499942][   T73]      netlink_unicast+0x449/0x710
[ 1928.499942][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1928.499942][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1928.499942][   T73]      ___sys_sendmsg+0xee/0x170
[ 1928.499942][   T73]      __sys_sendmsg+0xcd/0x170
[ 1928.499942][   T73]      do_syscall_64+0xc6/0x1e0
[ 1928.499942][   T73] 
[ 1928.501906][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1928.501906][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1928.501906][   T73]      ipv6_find_idev+0x102/0x170
[ 1928.501906][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1928.501906][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1928.501906][   T73]      netlink_rcv_skb+0x130/0x360
[ 1928.501906][   T73]      netlink_unicast+0x449/0x710
[ 1928.501906][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1928.501906][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1928.501906][   T73]      ___sys_sendmsg+0xee/0x170
[ 1928.501906][   T73]      __sys_sendmsg+0xcd/0x170
[ 1928.501906][   T73]      do_syscall_64+0xc6/0x1e0
[ 1928.501906][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1928.501906][   T73] 
[ 1928.503439][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1928.503439][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1928.503439][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1928.503439][   T73]      ipv6_find_idev+0x102/0x170
[ 1928.503439][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1928.503439][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1928.503439][   T73]      netlink_rcv_skb+0x130/0x360
[ 1928.503439][   T73]      netlink_unicast+0x449/0x710
[ 1928.503439][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1928.503439][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1928.503439][   T73]      ___sys_sendmsg+0xee/0x170
[ 1928.503439][   T73]      __sys_sendmsg+0xcd/0x170
[ 1928.503439][   T73]      do_syscall_64+0xc6/0x1e0
[ 1928.503439][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1928.503439][   T73] 
[ 1928.505126][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1928.505392][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1928.505392][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1928.505392][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1928.505392][   T73]      fib6_nh_init+0xa22/0x1580
[ 1928.505392][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1928.505392][   T73]      ip6_route_add+0x1c/0x140
[ 1928.505392][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1928.505392][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1928.505392][   T73]      netlink_rcv_skb+0x130/0x360
[ 1928.505392][   T73]      netlink_unicast+0x449/0x710
[ 1928.505392][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1928.505392][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1928.505392][   T73]      ___sys_sendmsg+0xee/0x170
[ 1928.505392][   T73]      __sys_sendmsg+0xcd/0x170
[ 1928.505392][   T73]      do_syscall_64+0xc6/0x1e0
[ 1928.505392][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1928.505392][   T73] 
[ 1928.507453][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1928.507453][   T73]      dst_init+0x84/0x4a0
[ 1928.507453][   T73]      dst_alloc+0x97/0x150
[ 1928.507453][   T73]      ip6_dst_alloc+0x23/0x90
[ 1928.507453][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1928.507453][   T73]      ip6_pol_route+0x56f/0x840
[ 1928.507453][   T73]      fib6_rule_lookup+0x456/0x630
[ 1928.507453][   T73]      ip6_route_input+0x59c/0xa50
[ 1928.507453][   T73]      ipv6_rcv+0x397/0x810
[ 1928.507453][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1928.507453][   T73]      process_backlog+0x101/0x620
[ 1928.507453][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1928.507453][   T73]      net_rx_action+0x495/0xbe0
[ 1928.507453][   T73]      __do_softirq+0x1b5/0x7f6
[ 1928.507453][   T73] 
[ 1928.509268][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1928.509268][   T73]      netdev_get_by_index+0x5e/0x80
[ 1928.509268][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1928.509268][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1928.509268][   T73]      ip6_route_add+0x1c/0x140
[ 1928.509268][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1928.509268][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1928.509268][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1928.509268][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1928.509268][   T73]      netlink_rcv_skb+0x130/0x360
[ 1928.509268][   T73]      netlink_unicast+0x449/0x710
[ 1928.509268][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1928.509268][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1928.509268][   T73]      ___sys_sendmsg+0xee/0x170
[ 1928.509268][   T73]      __sys_sendmsg+0xcd/0x170
[ 1928.509268][   T73]      do_syscall_64+0xc6/0x1e0
[ 1928.509268][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1928.509268][   T73] 
[ 1928.511437][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1928.511437][   T73]      netdev_get_by_index+0x5e/0x80
[ 1928.511437][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1928.511437][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1928.511437][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1928.511437][   T73]      ipv6_add_addr+0x411/0x2000
[ 1928.511437][   T73]      inet6_addr_add+0x30e/0xa40
[ 1928.511437][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1928.511437][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1928.511437][   T73]      netlink_rcv_skb+0x130/0x360
[ 1928.511437][   T73]      netlink_unicast+0x449/0x710
[ 1928.511437][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1928.511437][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1928.511437][   T73]      ___sys_sendmsg+0xee/0x170
[ 1928.511437][   T73]      __sys_sendmsg+0xcd/0x170
[ 1928.511437][   T73]      do_syscall_64+0xc6/0x1e0
[ 1928.511437][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1928.511437][   T73] 
[ 1928.513725][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1928.513725][   T73]      netdev_get_by_index+0x5e/0x80
[ 1928.513725][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1928.513725][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1928.513725][   T73]      ip6_route_add+0x1c/0x140
[ 1928.513725][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1928.513725][   T73]      addrconf_add_dev+0xe2/0x170
[ 1928.513725][   T73]      inet6_addr_add+0x12f/0xa40
[ 1928.513725][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1928.513725][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1928.513725][   T73]      netlink_rcv_skb+0x130/0x360
[ 1928.513725][   T73]      netlink_unicast+0x449/0x710
[ 1928.513725][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1928.513725][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1928.513725][   T73]      ___sys_sendmsg+0xee/0x170
[ 1928.513725][   T73]      __sys_sendmsg+0xcd/0x170
[ 1928.513725][   T73]      do_syscall_64+0xc6/0x1e0
[ 1928.513725][   T73] 
[ 1928.515939][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1928.515939][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1928.515939][   T73]      ipv6_find_idev+0x102/0x170
[ 1928.515939][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1928.515939][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1928.515939][   T73]      netlink_rcv_skb+0x130/0x360
[ 1928.515939][   T73]      netlink_unicast+0x449/0x710
[ 1928.515939][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1928.515939][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1928.515939][   T73]      ___sys_sendmsg+0xee/0x170
[ 1928.515939][   T73]      __sys_sendmsg+0xcd/0x170
[ 1928.515939][   T73]      do_syscall_64+0xc6/0x1e0
[ 1928.515939][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1928.515939][   T73] 
[ 1928.517644][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1928.517644][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1928.517644][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1928.517644][   T73]      ipv6_find_idev+0x102/0x170
[ 1928.517644][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1928.517644][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1928.517644][   T73]      netlink_rcv_skb+0x130/0x360
[ 1928.517644][   T73]      netlink_unicast+0x449/0x710
[ 1928.517644][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1928.517644][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1928.517644][   T73]      ___sys_sendmsg+0xee/0x170
[ 1928.517644][   T73]      __sys_sendmsg+0xcd/0x170
[ 1928.517644][   T73]      do_syscall_64+0xc6/0x1e0
[ 1928.517644][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1928.517644][   T73] 
[ 1928.519499][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1928.520276][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1928.520276][   T73]      netdev_get_by_index+0x5e/0x80
[ 1928.520276][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1928.520276][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1928.520276][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1928.520276][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1928.520276][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1928.520276][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1928.520276][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1928.520276][   T73]      addrconf_dad_begin+0x310/0x670
[ 1928.520276][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1928.520276][   T73]      process_one_work+0x84d/0x18a0
[ 1928.520276][   T73]      worker_thread+0x587/0xd30
[ 1928.520276][   T73]      kthread+0x28a/0x350
[ 1928.520276][   T73]      ret_from_fork+0x31/0x70
[ 1928.520276][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1928.520276][   T73] 
[ 1928.522172][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1928.522172][   T73]      netdev_get_by_index+0x5e/0x80
[ 1928.522172][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1928.522172][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1928.522172][   T73]      ip6_route_add+0x1c/0x140
[ 1928.522172][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1928.522172][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1928.522172][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1928.522172][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1928.522172][   T73]      netlink_rcv_skb+0x130/0x360
[ 1928.522172][   T73]      netlink_unicast+0x449/0x710
[ 1928.522172][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1928.522172][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1928.522172][   T73]      ___sys_sendmsg+0xee/0x170
[ 1928.522172][   T73]      __sys_sendmsg+0xcd/0x170
[ 1928.522172][   T73]      do_syscall_64+0xc6/0x1e0
[ 1928.522172][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1928.522172][   T73] 
[ 1928.524152][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1928.524152][   T73]      netdev_get_by_index+0x5e/0x80
[ 1928.524152][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1928.524152][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1928.524152][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1928.524152][   T73]      ipv6_add_addr+0x411/0x2000
[ 1928.524152][   T73]      inet6_addr_add+0x30e/0xa40
[ 1928.524152][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1928.524152][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1928.524152][   T73]      netlink_rcv_skb+0x130/0x360
[ 1928.524152][   T73]      netlink_unicast+0x449/0x710
[ 1928.524152][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1928.524152][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1928.524152][   T73]      ___sys_sendmsg+0xee/0x170
[ 1928.524152][   T73]      __sys_sendmsg+0xcd/0x170
[ 1928.524152][   T73]      do_syscall_64+0xc6/0x1e0
[ 1928.524152][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1928.524152][   T73] 
[ 1928.526451][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1928.526451][   T73]      netdev_get_by_index+0x5e/0x80
[ 1928.526451][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1928.526451][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1928.526451][   T73]      ip6_route_add+0x1c/0x140
[ 1928.526451][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1928.526451][   T73]      addrconf_add_dev+0xe2/0x170
[ 1928.526451][   T73]      inet6_addr_add+0x12f/0xa40
[ 1928.526451][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1928.526451][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1928.526451][   T73]      netlink_rcv_skb+0x130/0x360
[ 1928.526451][   T73]      netlink_unicast+0x449/0x710
[ 1928.526451][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1928.526451][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1928.526451][   T73]      ___sys_sendmsg+0xee/0x170
[ 1928.526451][   T73]      __sys_sendmsg+0xcd/0x170
[ 1928.526451][   T73]      do_syscall_64+0xc6/0x1e0
[ 1928.526451][   T73] 
[ 1928.528647][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1928.528647][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1928.528647][   T73]      ipv6_find_idev+0x102/0x170
[ 1928.528647][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1928.528647][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1928.528647][   T73]      netlink_rcv_skb+0x130/0x360
[ 1928.528647][   T73]      netlink_unicast+0x449/0x710
[ 1928.528647][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1928.528647][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1928.528647][   T73]      ___sys_sendmsg+0xee/0x170
[ 1928.528647][   T73]      __sys_sendmsg+0xcd/0x170
[ 1928.528647][   T73]      do_syscall_64+0xc6/0x1e0
[ 1928.528647][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1928.528647][   T73] 
[ 1928.530358][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1928.530358][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1928.530358][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1928.530358][   T73]      ipv6_find_idev+0x102/0x170
[ 1928.530358][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1928.530358][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1928.530358][   T73]      netlink_rcv_skb+0x130/0x360
[ 1928.530358][   T73]      netlink_unicast+0x449/0x710
[ 1928.530358][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1928.530358][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1928.530358][   T73]      ___sys_sendmsg+0xee/0x170
[ 1928.530358][   T73]      __sys_sendmsg+0xcd/0x170
[ 1928.530358][   T73]      do_syscall_64+0xc6/0x1e0
[ 1928.530358][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1928.530358][   T73] 
[ 1938.767698][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1938.768126][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1938.768126][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1938.768126][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1938.768126][   T73]      fib6_nh_init+0xa22/0x1580
[ 1938.768126][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1938.768126][   T73]      ip6_route_add+0x1c/0x140
[ 1938.768126][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1938.768126][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1938.768126][   T73]      netlink_rcv_skb+0x130/0x360
[ 1938.768126][   T73]      netlink_unicast+0x449/0x710
[ 1938.768126][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1938.768126][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1938.768126][   T73]      ___sys_sendmsg+0xee/0x170
[ 1938.768126][   T73]      __sys_sendmsg+0xcd/0x170
[ 1938.768126][   T73]      do_syscall_64+0xc6/0x1e0
[ 1938.768126][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1938.768126][   T73] 
[ 1938.770319][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1938.770319][   T73]      dst_init+0x84/0x4a0
[ 1938.770319][   T73]      dst_alloc+0x97/0x150
[ 1938.770319][   T73]      ip6_dst_alloc+0x23/0x90
[ 1938.770319][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1938.770319][   T73]      ip6_pol_route+0x56f/0x840
[ 1938.770319][   T73]      fib6_rule_lookup+0x456/0x630
[ 1938.770319][   T73]      ip6_route_input+0x59c/0xa50
[ 1938.770319][   T73]      ipv6_rcv+0x397/0x810
[ 1938.770319][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1938.770319][   T73]      process_backlog+0x101/0x620
[ 1938.770319][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1938.770319][   T73]      net_rx_action+0x495/0xbe0
[ 1938.770319][   T73]      __do_softirq+0x1b5/0x7f6
[ 1938.770319][   T73] 
[ 1938.772956][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1938.772956][   T73]      netdev_get_by_index+0x5e/0x80
[ 1938.772956][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1938.772956][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1938.772956][   T73]      ip6_route_add+0x1c/0x140
[ 1938.772956][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1938.772956][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1938.772956][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1938.772956][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1938.772956][   T73]      netlink_rcv_skb+0x130/0x360
[ 1938.772956][   T73]      netlink_unicast+0x449/0x710
[ 1938.772956][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1938.772956][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1938.772956][   T73]      ___sys_sendmsg+0xee/0x170
[ 1938.772956][   T73]      __sys_sendmsg+0xcd/0x170
[ 1938.772956][   T73]      do_syscall_64+0xc6/0x1e0
[ 1938.772956][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1938.772956][   T73] 
[ 1938.775004][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1938.775004][   T73]      netdev_get_by_index+0x5e/0x80
[ 1938.775004][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1938.775004][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1938.775004][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1938.775004][   T73]      ipv6_add_addr+0x411/0x2000
[ 1938.775004][   T73]      inet6_addr_add+0x30e/0xa40
[ 1938.775004][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1938.775004][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1938.775004][   T73]      netlink_rcv_skb+0x130/0x360
[ 1938.775004][   T73]      netlink_unicast+0x449/0x710
[ 1938.775004][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1938.775004][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1938.775004][   T73]      ___sys_sendmsg+0xee/0x170
[ 1938.775004][   T73]      __sys_sendmsg+0xcd/0x170
[ 1938.775004][   T73]      do_syscall_64+0xc6/0x1e0
[ 1938.775004][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1938.775004][   T73] 
[ 1938.777117][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1938.777117][   T73]      netdev_get_by_index+0x5e/0x80
[ 1938.777117][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1938.777117][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1938.777117][   T73]      ip6_route_add+0x1c/0x140
[ 1938.777117][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1938.777117][   T73]      addrconf_add_dev+0xe2/0x170
[ 1938.777117][   T73]      inet6_addr_add+0x12f/0xa40
[ 1938.777117][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1938.777117][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1938.777117][   T73]      netlink_rcv_skb+0x130/0x360
[ 1938.777117][   T73]      netlink_unicast+0x449/0x710
[ 1938.777117][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1938.777117][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1938.777117][   T73]      ___sys_sendmsg+0xee/0x170
[ 1938.777117][   T73]      __sys_sendmsg+0xcd/0x170
[ 1938.777117][   T73]      do_syscall_64+0xc6/0x1e0
[ 1938.777117][   T73] 
[ 1938.779128][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1938.779128][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1938.779128][   T73]      ipv6_find_idev+0x102/0x170
[ 1938.779128][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1938.779128][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1938.779128][   T73]      netlink_rcv_skb+0x130/0x360
[ 1938.779128][   T73]      netlink_unicast+0x449/0x710
[ 1938.779128][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1938.779128][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1938.779128][   T73]      ___sys_sendmsg+0xee/0x170
[ 1938.779128][   T73]      __sys_sendmsg+0xcd/0x170
[ 1938.779128][   T73]      do_syscall_64+0xc6/0x1e0
[ 1938.779128][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1938.779128][   T73] 
[ 1938.780757][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1938.780757][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1938.780757][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1938.780757][   T73]      ipv6_find_idev+0x102/0x170
[ 1938.780757][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1938.780757][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1938.780757][   T73]      netlink_rcv_skb+0x130/0x360
[ 1938.780757][   T73]      netlink_unicast+0x449/0x710
[ 1938.780757][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1938.780757][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1938.780757][   T73]      ___sys_sendmsg+0xee/0x170
[ 1938.780757][   T73]      __sys_sendmsg+0xcd/0x170
[ 1938.780757][   T73]      do_syscall_64+0xc6/0x1e0
[ 1938.780757][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1938.780757][   T73] 
[ 1938.782475][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1938.782772][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1938.782772][   T73]      netdev_get_by_index+0x5e/0x80
[ 1938.782772][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1938.782772][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1938.782772][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1938.782772][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1938.782772][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1938.782772][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1938.782772][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1938.782772][   T73]      addrconf_dad_begin+0x310/0x670
[ 1938.782772][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1938.782772][   T73]      process_one_work+0x84d/0x18a0
[ 1938.782772][   T73]      worker_thread+0x587/0xd30
[ 1938.782772][   T73]      kthread+0x28a/0x350
[ 1938.782772][   T73]      ret_from_fork+0x31/0x70
[ 1938.782772][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1938.782772][   T73] 
[ 1938.784717][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1938.784717][   T73]      netdev_get_by_index+0x5e/0x80
[ 1938.784717][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1938.784717][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1938.784717][   T73]      ip6_route_add+0x1c/0x140
[ 1938.784717][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1938.784717][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1938.784717][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1938.784717][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1938.784717][   T73]      netlink_rcv_skb+0x130/0x360
[ 1938.784717][   T73]      netlink_unicast+0x449/0x710
[ 1938.784717][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1938.784717][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1938.784717][   T73]      ___sys_sendmsg+0xee/0x170
[ 1938.784717][   T73]      __sys_sendmsg+0xcd/0x170
[ 1938.784717][   T73]      do_syscall_64+0xc6/0x1e0
[ 1938.784717][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1938.784717][   T73] 
[ 1938.786768][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1938.786768][   T73]      netdev_get_by_index+0x5e/0x80
[ 1938.786768][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1938.786768][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1938.786768][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1938.786768][   T73]      ipv6_add_addr+0x411/0x2000
[ 1938.786768][   T73]      inet6_addr_add+0x30e/0xa40
[ 1938.786768][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1938.786768][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1938.786768][   T73]      netlink_rcv_skb+0x130/0x360
[ 1938.786768][   T73]      netlink_unicast+0x449/0x710
[ 1938.786768][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1938.786768][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1938.786768][   T73]      ___sys_sendmsg+0xee/0x170
[ 1938.786768][   T73]      __sys_sendmsg+0xcd/0x170
[ 1938.786768][   T73]      do_syscall_64+0xc6/0x1e0
[ 1938.786768][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1938.786768][   T73] 
[ 1938.788844][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1938.788844][   T73]      netdev_get_by_index+0x5e/0x80
[ 1938.788844][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1938.788844][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1938.788844][   T73]      ip6_route_add+0x1c/0x140
[ 1938.788844][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1938.788844][   T73]      addrconf_add_dev+0xe2/0x170
[ 1938.788844][   T73]      inet6_addr_add+0x12f/0xa40
[ 1938.788844][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1938.788844][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1938.788844][   T73]      netlink_rcv_skb+0x130/0x360
[ 1938.788844][   T73]      netlink_unicast+0x449/0x710
[ 1938.788844][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1938.788844][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1938.788844][   T73]      ___sys_sendmsg+0xee/0x170
[ 1938.788844][   T73]      __sys_sendmsg+0xcd/0x170
[ 1938.788844][   T73]      do_syscall_64+0xc6/0x1e0
[ 1938.788844][   T73] 
[ 1938.790863][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1938.790863][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1938.790863][   T73]      ipv6_find_idev+0x102/0x170
[ 1938.790863][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1938.790863][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1938.790863][   T73]      netlink_rcv_skb+0x130/0x360
[ 1938.790863][   T73]      netlink_unicast+0x449/0x710
[ 1938.790863][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1938.790863][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1938.790863][   T73]      ___sys_sendmsg+0xee/0x170
[ 1938.790863][   T73]      __sys_sendmsg+0xcd/0x170
[ 1938.790863][   T73]      do_syscall_64+0xc6/0x1e0
[ 1938.790863][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1938.790863][   T73] 
[ 1938.792431][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1938.792431][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1938.792431][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1938.792431][   T73]      ipv6_find_idev+0x102/0x170
[ 1938.792431][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1938.792431][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1938.792431][   T73]      netlink_rcv_skb+0x130/0x360
[ 1938.792431][   T73]      netlink_unicast+0x449/0x710
[ 1938.792431][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1938.792431][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1938.792431][   T73]      ___sys_sendmsg+0xee/0x170
[ 1938.792431][   T73]      __sys_sendmsg+0xcd/0x170
[ 1938.792431][   T73]      do_syscall_64+0xc6/0x1e0
[ 1938.792431][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1938.792431][   T73] 
[ 1938.794134][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1938.794413][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1938.794413][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1938.794413][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1938.794413][   T73]      fib6_nh_init+0xa22/0x1580
[ 1938.794413][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1938.794413][   T73]      ip6_route_add+0x1c/0x140
[ 1938.794413][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1938.794413][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1938.794413][   T73]      netlink_rcv_skb+0x130/0x360
[ 1938.794413][   T73]      netlink_unicast+0x449/0x710
[ 1938.794413][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1938.794413][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1938.794413][   T73]      ___sys_sendmsg+0xee/0x170
[ 1938.794413][   T73]      __sys_sendmsg+0xcd/0x170
[ 1938.794413][   T73]      do_syscall_64+0xc6/0x1e0
[ 1938.794413][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1938.794413][   T73] 
[ 1938.796585][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1938.796585][   T73]      dst_init+0x84/0x4a0
[ 1938.796585][   T73]      dst_alloc+0x97/0x150
[ 1938.796585][   T73]      ip6_dst_alloc+0x23/0x90
[ 1938.796585][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1938.796585][   T73]      ip6_pol_route+0x56f/0x840
[ 1938.796585][   T73]      fib6_rule_lookup+0x456/0x630
[ 1938.796585][   T73]      ip6_route_input+0x59c/0xa50
[ 1938.796585][   T73]      ipv6_rcv+0x397/0x810
[ 1938.796585][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1938.796585][   T73]      process_backlog+0x101/0x620
[ 1938.796585][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1938.796585][   T73]      net_rx_action+0x495/0xbe0
[ 1938.796585][   T73]      __do_softirq+0x1b5/0x7f6
[ 1938.796585][   T73] 
[ 1938.798514][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1938.798514][   T73]      netdev_get_by_index+0x5e/0x80
[ 1938.798514][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1938.798514][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1938.798514][   T73]      ip6_route_add+0x1c/0x140
[ 1938.798514][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1938.798514][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1938.798514][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1938.798514][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1938.798514][   T73]      netlink_rcv_skb+0x130/0x360
[ 1938.798514][   T73]      netlink_unicast+0x449/0x710
[ 1938.798514][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1938.798514][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1938.798514][   T73]      ___sys_sendmsg+0xee/0x170
[ 1938.798514][   T73]      __sys_sendmsg+0xcd/0x170
[ 1938.798514][   T73]      do_syscall_64+0xc6/0x1e0
[ 1938.798514][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1938.798514][   T73] 
[ 1938.801167][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1938.801167][   T73]      netdev_get_by_index+0x5e/0x80
[ 1938.801167][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1938.801167][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1938.801167][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1938.801167][   T73]      ipv6_add_addr+0x411/0x2000
[ 1938.801167][   T73]      inet6_addr_add+0x30e/0xa40
[ 1938.801167][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1938.801167][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1938.801167][   T73]      netlink_rcv_skb+0x130/0x360
[ 1938.801167][   T73]      netlink_unicast+0x449/0x710
[ 1938.801167][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1938.801167][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1938.801167][   T73]      ___sys_sendmsg+0xee/0x170
[ 1938.801167][   T73]      __sys_sendmsg+0xcd/0x170
[ 1938.801167][   T73]      do_syscall_64+0xc6/0x1e0
[ 1938.801167][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1938.801167][   T73] 
[ 1938.803448][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1938.803448][   T73]      netdev_get_by_index+0x5e/0x80
[ 1938.803448][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1938.803448][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1938.803448][   T73]      ip6_route_add+0x1c/0x140
[ 1938.803448][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1938.803448][   T73]      addrconf_add_dev+0xe2/0x170
[ 1938.803448][   T73]      inet6_addr_add+0x12f/0xa40
[ 1938.803448][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1938.803448][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1938.803448][   T73]      netlink_rcv_skb+0x130/0x360
[ 1938.803448][   T73]      netlink_unicast+0x449/0x710
[ 1938.803448][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1938.803448][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1938.803448][   T73]      ___sys_sendmsg+0xee/0x170
[ 1938.803448][   T73]      __sys_sendmsg+0xcd/0x170
[ 1938.803448][   T73]      do_syscall_64+0xc6/0x1e0
[ 1938.803448][   T73] 
[ 1938.805711][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1938.805711][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1938.805711][   T73]      ipv6_find_idev+0x102/0x170
[ 1938.805711][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1938.805711][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1938.805711][   T73]      netlink_rcv_skb+0x130/0x360
[ 1938.805711][   T73]      netlink_unicast+0x449/0x710
[ 1938.805711][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1938.805711][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1938.805711][   T73]      ___sys_sendmsg+0xee/0x170
[ 1938.805711][   T73]      __sys_sendmsg+0xcd/0x170
[ 1938.805711][   T73]      do_syscall_64+0xc6/0x1e0
[ 1938.805711][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1938.805711][   T73] 
[ 1938.807481][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1938.807481][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1938.807481][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1938.807481][   T73]      ipv6_find_idev+0x102/0x170
[ 1938.807481][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1938.807481][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1938.807481][   T73]      netlink_rcv_skb+0x130/0x360
[ 1938.807481][   T73]      netlink_unicast+0x449/0x710
[ 1938.807481][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1938.807481][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1938.807481][   T73]      ___sys_sendmsg+0xee/0x170
[ 1938.807481][   T73]      __sys_sendmsg+0xcd/0x170
[ 1938.807481][   T73]      do_syscall_64+0xc6/0x1e0
[ 1938.807481][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1938.807481][   T73] 
[ 1938.809845][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1938.810120][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1938.810120][   T73]      netdev_get_by_index+0x5e/0x80
[ 1938.810120][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1938.810120][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1938.810120][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1938.810120][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1938.810120][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1938.810120][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1938.810120][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1938.810120][   T73]      addrconf_dad_begin+0x310/0x670
[ 1938.810120][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1938.810120][   T73]      process_one_work+0x84d/0x18a0
[ 1938.810120][   T73]      worker_thread+0x587/0xd30
[ 1938.810120][   T73]      kthread+0x28a/0x350
[ 1938.810120][   T73]      ret_from_fork+0x31/0x70
[ 1938.810120][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1938.810120][   T73] 
[ 1938.812057][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1938.812057][   T73]      netdev_get_by_index+0x5e/0x80
[ 1938.812057][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1938.812057][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1938.812057][   T73]      ip6_route_add+0x1c/0x140
[ 1938.812057][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1938.812057][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1938.812057][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1938.812057][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1938.812057][   T73]      netlink_rcv_skb+0x130/0x360
[ 1938.812057][   T73]      netlink_unicast+0x449/0x710
[ 1938.812057][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1938.812057][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1938.812057][   T73]      ___sys_sendmsg+0xee/0x170
[ 1938.812057][   T73]      __sys_sendmsg+0xcd/0x170
[ 1938.812057][   T73]      do_syscall_64+0xc6/0x1e0
[ 1938.812057][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1938.812057][   T73] 
[ 1938.814216][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1938.814216][   T73]      netdev_get_by_index+0x5e/0x80
[ 1938.814216][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1938.814216][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1938.814216][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1938.814216][   T73]      ipv6_add_addr+0x411/0x2000
[ 1938.814216][   T73]      inet6_addr_add+0x30e/0xa40
[ 1938.814216][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1938.814216][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1938.814216][   T73]      netlink_rcv_skb+0x130/0x360
[ 1938.814216][   T73]      netlink_unicast+0x449/0x710
[ 1938.814216][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1938.814216][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1938.814216][   T73]      ___sys_sendmsg+0xee/0x170
[ 1938.814216][   T73]      __sys_sendmsg+0xcd/0x170
[ 1938.814216][   T73]      do_syscall_64+0xc6/0x1e0
[ 1938.814216][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1938.814216][   T73] 
[ 1938.816499][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1938.816499][   T73]      netdev_get_by_index+0x5e/0x80
[ 1938.816499][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1938.816499][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1938.816499][   T73]      ip6_route_add+0x1c/0x140
[ 1938.816499][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1938.816499][   T73]      addrconf_add_dev+0xe2/0x170
[ 1938.816499][   T73]      inet6_addr_add+0x12f/0xa40
[ 1938.816499][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1938.816499][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1938.816499][   T73]      netlink_rcv_skb+0x130/0x360
[ 1938.816499][   T73]      netlink_unicast+0x449/0x710
[ 1938.816499][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1938.816499][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1938.816499][   T73]      ___sys_sendmsg+0xee/0x170
[ 1938.816499][   T73]      __sys_sendmsg+0xcd/0x170
[ 1938.816499][   T73]      do_syscall_64+0xc6/0x1e0
[ 1938.816499][   T73] 
[ 1938.818795][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1938.818795][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1938.818795][   T73]      ipv6_find_idev+0x102/0x170
[ 1938.818795][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1938.818795][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1938.818795][   T73]      netlink_rcv_skb+0x130/0x360
[ 1938.818795][   T73]      netlink_unicast+0x449/0x710
[ 1938.818795][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1938.818795][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1938.818795][   T73]      ___sys_sendmsg+0xee/0x170
[ 1938.818795][   T73]      __sys_sendmsg+0xcd/0x170
[ 1938.818795][   T73]      do_syscall_64+0xc6/0x1e0
[ 1938.818795][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1938.818795][   T73] 
[ 1938.820624][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1938.820624][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1938.820624][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1938.820624][   T73]      ipv6_find_idev+0x102/0x170
[ 1938.820624][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1938.820624][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1938.820624][   T73]      netlink_rcv_skb+0x130/0x360
[ 1938.820624][   T73]      netlink_unicast+0x449/0x710
[ 1938.820624][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1938.820624][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1938.820624][   T73]      ___sys_sendmsg+0xee/0x170
[ 1938.820624][   T73]      __sys_sendmsg+0xcd/0x170
[ 1938.820624][   T73]      do_syscall_64+0xc6/0x1e0
[ 1938.820624][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1938.820624][   T73] 
[ 1949.039727][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1949.040159][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1949.040159][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1949.040159][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1949.040159][   T73]      fib6_nh_init+0xa22/0x1580
[ 1949.040159][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1949.040159][   T73]      ip6_route_add+0x1c/0x140
[ 1949.040159][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1949.040159][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1949.040159][   T73]      netlink_rcv_skb+0x130/0x360
[ 1949.040159][   T73]      netlink_unicast+0x449/0x710
[ 1949.040159][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1949.040159][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1949.040159][   T73]      ___sys_sendmsg+0xee/0x170
[ 1949.040159][   T73]      __sys_sendmsg+0xcd/0x170
[ 1949.040159][   T73]      do_syscall_64+0xc6/0x1e0
[ 1949.040159][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1949.040159][   T73] 
[ 1949.042130][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1949.042130][   T73]      dst_init+0x84/0x4a0
[ 1949.042130][   T73]      dst_alloc+0x97/0x150
[ 1949.042130][   T73]      ip6_dst_alloc+0x23/0x90
[ 1949.042130][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1949.042130][   T73]      ip6_pol_route+0x56f/0x840
[ 1949.042130][   T73]      fib6_rule_lookup+0x456/0x630
[ 1949.042130][   T73]      ip6_route_input+0x59c/0xa50
[ 1949.042130][   T73]      ipv6_rcv+0x397/0x810
[ 1949.042130][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1949.042130][   T73]      process_backlog+0x101/0x620
[ 1949.042130][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1949.042130][   T73]      net_rx_action+0x495/0xbe0
[ 1949.042130][   T73]      __do_softirq+0x1b5/0x7f6
[ 1949.042130][   T73] 
[ 1949.043801][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1949.043801][   T73]      netdev_get_by_index+0x5e/0x80
[ 1949.043801][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1949.043801][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1949.043801][   T73]      ip6_route_add+0x1c/0x140
[ 1949.043801][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1949.043801][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1949.043801][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1949.043801][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1949.043801][   T73]      netlink_rcv_skb+0x130/0x360
[ 1949.043801][   T73]      netlink_unicast+0x449/0x710
[ 1949.043801][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1949.043801][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1949.043801][   T73]      ___sys_sendmsg+0xee/0x170
[ 1949.043801][   T73]      __sys_sendmsg+0xcd/0x170
[ 1949.043801][   T73]      do_syscall_64+0xc6/0x1e0
[ 1949.043801][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1949.043801][   T73] 
[ 1949.045880][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1949.045880][   T73]      netdev_get_by_index+0x5e/0x80
[ 1949.045880][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1949.045880][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1949.045880][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1949.045880][   T73]      ipv6_add_addr+0x411/0x2000
[ 1949.045880][   T73]      inet6_addr_add+0x30e/0xa40
[ 1949.045880][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1949.045880][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1949.045880][   T73]      netlink_rcv_skb+0x130/0x360
[ 1949.045880][   T73]      netlink_unicast+0x449/0x710
[ 1949.045880][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1949.045880][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1949.045880][   T73]      ___sys_sendmsg+0xee/0x170
[ 1949.045880][   T73]      __sys_sendmsg+0xcd/0x170
[ 1949.045880][   T73]      do_syscall_64+0xc6/0x1e0
[ 1949.045880][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1949.045880][   T73] 
[ 1949.047987][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1949.047987][   T73]      netdev_get_by_index+0x5e/0x80
[ 1949.047987][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1949.047987][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1949.047987][   T73]      ip6_route_add+0x1c/0x140
[ 1949.047987][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1949.047987][   T73]      addrconf_add_dev+0xe2/0x170
[ 1949.047987][   T73]      inet6_addr_add+0x12f/0xa40
[ 1949.047987][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1949.047987][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1949.047987][   T73]      netlink_rcv_skb+0x130/0x360
[ 1949.047987][   T73]      netlink_unicast+0x449/0x710
[ 1949.047987][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1949.047987][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1949.047987][   T73]      ___sys_sendmsg+0xee/0x170
[ 1949.047987][   T73]      __sys_sendmsg+0xcd/0x170
[ 1949.047987][   T73]      do_syscall_64+0xc6/0x1e0
[ 1949.047987][   T73] 
[ 1949.050050][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1949.050050][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1949.050050][   T73]      ipv6_find_idev+0x102/0x170
[ 1949.050050][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1949.050050][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1949.050050][   T73]      netlink_rcv_skb+0x130/0x360
[ 1949.050050][   T73]      netlink_unicast+0x449/0x710
[ 1949.050050][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1949.050050][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1949.050050][   T73]      ___sys_sendmsg+0xee/0x170
[ 1949.050050][   T73]      __sys_sendmsg+0xcd/0x170
[ 1949.050050][   T73]      do_syscall_64+0xc6/0x1e0
[ 1949.050050][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1949.050050][   T73] 
[ 1949.051645][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1949.051645][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1949.051645][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1949.051645][   T73]      ipv6_find_idev+0x102/0x170
[ 1949.051645][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1949.051645][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1949.051645][   T73]      netlink_rcv_skb+0x130/0x360
[ 1949.051645][   T73]      netlink_unicast+0x449/0x710
[ 1949.051645][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1949.051645][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1949.051645][   T73]      ___sys_sendmsg+0xee/0x170
[ 1949.051645][   T73]      __sys_sendmsg+0xcd/0x170
[ 1949.051645][   T73]      do_syscall_64+0xc6/0x1e0
[ 1949.051645][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1949.051645][   T73] 
[ 1949.053388][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1949.053680][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1949.053680][   T73]      netdev_get_by_index+0x5e/0x80
[ 1949.053680][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1949.053680][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1949.053680][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1949.053680][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1949.053680][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1949.053680][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1949.053680][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1949.053680][   T73]      addrconf_dad_begin+0x310/0x670
[ 1949.053680][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1949.053680][   T73]      process_one_work+0x84d/0x18a0
[ 1949.053680][   T73]      worker_thread+0x587/0xd30
[ 1949.053680][   T73]      kthread+0x28a/0x350
[ 1949.053680][   T73]      ret_from_fork+0x31/0x70
[ 1949.053680][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1949.053680][   T73] 
[ 1949.055704][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1949.055704][   T73]      netdev_get_by_index+0x5e/0x80
[ 1949.055704][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1949.055704][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1949.055704][   T73]      ip6_route_add+0x1c/0x140
[ 1949.055704][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1949.055704][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1949.055704][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1949.055704][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1949.055704][   T73]      netlink_rcv_skb+0x130/0x360
[ 1949.055704][   T73]      netlink_unicast+0x449/0x710
[ 1949.055704][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1949.055704][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1949.055704][   T73]      ___sys_sendmsg+0xee/0x170
[ 1949.055704][   T73]      __sys_sendmsg+0xcd/0x170
[ 1949.055704][   T73]      do_syscall_64+0xc6/0x1e0
[ 1949.055704][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1949.055704][   T73] 
[ 1949.057855][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1949.057855][   T73]      netdev_get_by_index+0x5e/0x80
[ 1949.057855][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1949.057855][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1949.057855][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1949.057855][   T73]      ipv6_add_addr+0x411/0x2000
[ 1949.057855][   T73]      inet6_addr_add+0x30e/0xa40
[ 1949.057855][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1949.057855][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1949.057855][   T73]      netlink_rcv_skb+0x130/0x360
[ 1949.057855][   T73]      netlink_unicast+0x449/0x710
[ 1949.057855][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1949.057855][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1949.057855][   T73]      ___sys_sendmsg+0xee/0x170
[ 1949.057855][   T73]      __sys_sendmsg+0xcd/0x170
[ 1949.057855][   T73]      do_syscall_64+0xc6/0x1e0
[ 1949.057855][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1949.057855][   T73] 
[ 1949.059998][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1949.059998][   T73]      netdev_get_by_index+0x5e/0x80
[ 1949.059998][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1949.059998][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1949.059998][   T73]      ip6_route_add+0x1c/0x140
[ 1949.059998][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1949.059998][   T73]      addrconf_add_dev+0xe2/0x170
[ 1949.059998][   T73]      inet6_addr_add+0x12f/0xa40
[ 1949.059998][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1949.059998][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1949.059998][   T73]      netlink_rcv_skb+0x130/0x360
[ 1949.059998][   T73]      netlink_unicast+0x449/0x710
[ 1949.059998][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1949.059998][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1949.059998][   T73]      ___sys_sendmsg+0xee/0x170
[ 1949.059998][   T73]      __sys_sendmsg+0xcd/0x170
[ 1949.059998][   T73]      do_syscall_64+0xc6/0x1e0
[ 1949.059998][   T73] 
[ 1949.062122][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1949.062122][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1949.062122][   T73]      ipv6_find_idev+0x102/0x170
[ 1949.062122][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1949.062122][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1949.062122][   T73]      netlink_rcv_skb+0x130/0x360
[ 1949.062122][   T73]      netlink_unicast+0x449/0x710
[ 1949.062122][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1949.062122][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1949.062122][   T73]      ___sys_sendmsg+0xee/0x170
[ 1949.062122][   T73]      __sys_sendmsg+0xcd/0x170
[ 1949.062122][   T73]      do_syscall_64+0xc6/0x1e0
[ 1949.062122][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1949.062122][   T73] 
[ 1949.063767][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1949.063767][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1949.063767][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1949.063767][   T73]      ipv6_find_idev+0x102/0x170
[ 1949.063767][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1949.063767][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1949.063767][   T73]      netlink_rcv_skb+0x130/0x360
[ 1949.063767][   T73]      netlink_unicast+0x449/0x710
[ 1949.063767][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1949.063767][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1949.063767][   T73]      ___sys_sendmsg+0xee/0x170
[ 1949.063767][   T73]      __sys_sendmsg+0xcd/0x170
[ 1949.063767][   T73]      do_syscall_64+0xc6/0x1e0
[ 1949.063767][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1949.063767][   T73] 
[ 1949.065530][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1949.065842][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1949.065842][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1949.065842][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1949.065842][   T73]      fib6_nh_init+0xa22/0x1580
[ 1949.065842][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1949.065842][   T73]      ip6_route_add+0x1c/0x140
[ 1949.065842][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1949.065842][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1949.065842][   T73]      netlink_rcv_skb+0x130/0x360
[ 1949.065842][   T73]      netlink_unicast+0x449/0x710
[ 1949.065842][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1949.065842][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1949.065842][   T73]      ___sys_sendmsg+0xee/0x170
[ 1949.065842][   T73]      __sys_sendmsg+0xcd/0x170
[ 1949.065842][   T73]      do_syscall_64+0xc6/0x1e0
[ 1949.065842][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1949.065842][   T73] 
[ 1949.067952][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1949.067952][   T73]      dst_init+0x84/0x4a0
[ 1949.067952][   T73]      dst_alloc+0x97/0x150
[ 1949.067952][   T73]      ip6_dst_alloc+0x23/0x90
[ 1949.067952][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1949.067952][   T73]      ip6_pol_route+0x56f/0x840
[ 1949.067952][   T73]      fib6_rule_lookup+0x456/0x630
[ 1949.067952][   T73]      ip6_route_input+0x59c/0xa50
[ 1949.067952][   T73]      ipv6_rcv+0x397/0x810
[ 1949.067952][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1949.067952][   T73]      process_backlog+0x101/0x620
[ 1949.067952][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1949.067952][   T73]      net_rx_action+0x495/0xbe0
[ 1949.067952][   T73]      __do_softirq+0x1b5/0x7f6
[ 1949.067952][   T73] 
[ 1949.069889][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1949.069889][   T73]      netdev_get_by_index+0x5e/0x80
[ 1949.069889][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1949.069889][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1949.069889][   T73]      ip6_route_add+0x1c/0x140
[ 1949.069889][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1949.069889][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1949.069889][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1949.069889][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1949.069889][   T73]      netlink_rcv_skb+0x130/0x360
[ 1949.069889][   T73]      netlink_unicast+0x449/0x710
[ 1949.069889][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1949.069889][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1949.069889][   T73]      ___sys_sendmsg+0xee/0x170
[ 1949.069889][   T73]      __sys_sendmsg+0xcd/0x170
[ 1949.069889][   T73]      do_syscall_64+0xc6/0x1e0
[ 1949.069889][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1949.069889][   T73] 
[ 1949.072415][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1949.072415][   T73]      netdev_get_by_index+0x5e/0x80
[ 1949.072415][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1949.072415][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1949.072415][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1949.072415][   T73]      ipv6_add_addr+0x411/0x2000
[ 1949.072415][   T73]      inet6_addr_add+0x30e/0xa40
[ 1949.072415][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1949.072415][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1949.072415][   T73]      netlink_rcv_skb+0x130/0x360
[ 1949.072415][   T73]      netlink_unicast+0x449/0x710
[ 1949.072415][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1949.072415][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1949.072415][   T73]      ___sys_sendmsg+0xee/0x170
[ 1949.072415][   T73]      __sys_sendmsg+0xcd/0x170
[ 1949.072415][   T73]      do_syscall_64+0xc6/0x1e0
[ 1949.072415][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1949.072415][   T73] 
[ 1949.074824][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1949.074824][   T73]      netdev_get_by_index+0x5e/0x80
[ 1949.074824][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1949.074824][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1949.074824][   T73]      ip6_route_add+0x1c/0x140
[ 1949.074824][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1949.074824][   T73]      addrconf_add_dev+0xe2/0x170
[ 1949.074824][   T73]      inet6_addr_add+0x12f/0xa40
[ 1949.074824][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1949.074824][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1949.074824][   T73]      netlink_rcv_skb+0x130/0x360
[ 1949.074824][   T73]      netlink_unicast+0x449/0x710
[ 1949.074824][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1949.074824][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1949.074824][   T73]      ___sys_sendmsg+0xee/0x170
[ 1949.074824][   T73]      __sys_sendmsg+0xcd/0x170
[ 1949.074824][   T73]      do_syscall_64+0xc6/0x1e0
[ 1949.074824][   T73] 
[ 1949.077226][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1949.077226][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1949.077226][   T73]      ipv6_find_idev+0x102/0x170
[ 1949.077226][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1949.077226][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1949.077226][   T73]      netlink_rcv_skb+0x130/0x360
[ 1949.077226][   T73]      netlink_unicast+0x449/0x710
[ 1949.077226][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1949.077226][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1949.077226][   T73]      ___sys_sendmsg+0xee/0x170
[ 1949.077226][   T73]      __sys_sendmsg+0xcd/0x170
[ 1949.077226][   T73]      do_syscall_64+0xc6/0x1e0
[ 1949.077226][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1949.077226][   T73] 
[ 1949.079106][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1949.079106][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1949.079106][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1949.079106][   T73]      ipv6_find_idev+0x102/0x170
[ 1949.079106][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1949.079106][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1949.079106][   T73]      netlink_rcv_skb+0x130/0x360
[ 1949.079106][   T73]      netlink_unicast+0x449/0x710
[ 1949.079106][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1949.079106][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1949.079106][   T73]      ___sys_sendmsg+0xee/0x170
[ 1949.079106][   T73]      __sys_sendmsg+0xcd/0x170
[ 1949.079106][   T73]      do_syscall_64+0xc6/0x1e0
[ 1949.079106][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1949.079106][   T73] 
[ 1949.081333][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1949.081645][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1949.081645][   T73]      netdev_get_by_index+0x5e/0x80
[ 1949.081645][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1949.081645][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1949.081645][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1949.081645][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1949.081645][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1949.081645][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1949.081645][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1949.081645][   T73]      addrconf_dad_begin+0x310/0x670
[ 1949.081645][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1949.081645][   T73]      process_one_work+0x84d/0x18a0
[ 1949.081645][   T73]      worker_thread+0x587/0xd30
[ 1949.081645][   T73]      kthread+0x28a/0x350
[ 1949.081645][   T73]      ret_from_fork+0x31/0x70
[ 1949.081645][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1949.081645][   T73] 
[ 1949.084071][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1949.084071][   T73]      netdev_get_by_index+0x5e/0x80
[ 1949.084071][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1949.084071][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1949.084071][   T73]      ip6_route_add+0x1c/0x140
[ 1949.084071][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1949.084071][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1949.084071][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1949.084071][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1949.084071][   T73]      netlink_rcv_skb+0x130/0x360
[ 1949.084071][   T73]      netlink_unicast+0x449/0x710
[ 1949.084071][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1949.084071][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1949.084071][   T73]      ___sys_sendmsg+0xee/0x170
[ 1949.084071][   T73]      __sys_sendmsg+0xcd/0x170
[ 1949.084071][   T73]      do_syscall_64+0xc6/0x1e0
[ 1949.084071][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1949.084071][   T73] 
[ 1949.086620][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1949.086620][   T73]      netdev_get_by_index+0x5e/0x80
[ 1949.086620][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1949.086620][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1949.086620][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1949.086620][   T73]      ipv6_add_addr+0x411/0x2000
[ 1949.086620][   T73]      inet6_addr_add+0x30e/0xa40
[ 1949.086620][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1949.086620][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1949.086620][   T73]      netlink_rcv_skb+0x130/0x360
[ 1949.086620][   T73]      netlink_unicast+0x449/0x710
[ 1949.086620][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1949.086620][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1949.086620][   T73]      ___sys_sendmsg+0xee/0x170
[ 1949.086620][   T73]      __sys_sendmsg+0xcd/0x170
[ 1949.086620][   T73]      do_syscall_64+0xc6/0x1e0
[ 1949.086620][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1949.086620][   T73] 
[ 1949.089168][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1949.089168][   T73]      netdev_get_by_index+0x5e/0x80
[ 1949.089168][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1949.089168][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1949.089168][   T73]      ip6_route_add+0x1c/0x140
[ 1949.089168][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1949.089168][   T73]      addrconf_add_dev+0xe2/0x170
[ 1949.089168][   T73]      inet6_addr_add+0x12f/0xa40
[ 1949.089168][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1949.089168][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1949.089168][   T73]      netlink_rcv_skb+0x130/0x360
[ 1949.089168][   T73]      netlink_unicast+0x449/0x710
[ 1949.089168][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1949.089168][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1949.089168][   T73]      ___sys_sendmsg+0xee/0x170
[ 1949.089168][   T73]      __sys_sendmsg+0xcd/0x170
[ 1949.089168][   T73]      do_syscall_64+0xc6/0x1e0
[ 1949.089168][   T73] 
[ 1949.091636][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1949.091636][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1949.091636][   T73]      ipv6_find_idev+0x102/0x170
[ 1949.091636][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1949.091636][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1949.091636][   T73]      netlink_rcv_skb+0x130/0x360
[ 1949.091636][   T73]      netlink_unicast+0x449/0x710
[ 1949.091636][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1949.091636][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1949.091636][   T73]      ___sys_sendmsg+0xee/0x170
[ 1949.091636][   T73]      __sys_sendmsg+0xcd/0x170
[ 1949.091636][   T73]      do_syscall_64+0xc6/0x1e0
[ 1949.091636][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1949.091636][   T73] 
[ 1949.093578][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1949.093578][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1949.093578][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1949.093578][   T73]      ipv6_find_idev+0x102/0x170
[ 1949.093578][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1949.093578][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1949.093578][   T73]      netlink_rcv_skb+0x130/0x360
[ 1949.093578][   T73]      netlink_unicast+0x449/0x710
[ 1949.093578][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1949.093578][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1949.093578][   T73]      ___sys_sendmsg+0xee/0x170
[ 1949.093578][   T73]      __sys_sendmsg+0xcd/0x170
[ 1949.093578][   T73]      do_syscall_64+0xc6/0x1e0
[ 1949.093578][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1949.093578][   T73] 
[ 1959.335735][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1959.336191][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1959.336191][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1959.336191][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1959.336191][   T73]      fib6_nh_init+0xa22/0x1580
[ 1959.336191][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1959.336191][   T73]      ip6_route_add+0x1c/0x140
[ 1959.336191][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1959.336191][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1959.336191][   T73]      netlink_rcv_skb+0x130/0x360
[ 1959.336191][   T73]      netlink_unicast+0x449/0x710
[ 1959.336191][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1959.336191][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1959.336191][   T73]      ___sys_sendmsg+0xee/0x170
[ 1959.336191][   T73]      __sys_sendmsg+0xcd/0x170
[ 1959.336191][   T73]      do_syscall_64+0xc6/0x1e0
[ 1959.336191][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1959.336191][   T73] 
[ 1959.338417][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1959.338417][   T73]      dst_init+0x84/0x4a0
[ 1959.338417][   T73]      dst_alloc+0x97/0x150
[ 1959.338417][   T73]      ip6_dst_alloc+0x23/0x90
[ 1959.338417][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1959.338417][   T73]      ip6_pol_route+0x56f/0x840
[ 1959.338417][   T73]      fib6_rule_lookup+0x456/0x630
[ 1959.338417][   T73]      ip6_route_input+0x59c/0xa50
[ 1959.338417][   T73]      ipv6_rcv+0x397/0x810
[ 1959.338417][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1959.338417][   T73]      process_backlog+0x101/0x620
[ 1959.338417][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1959.338417][   T73]      net_rx_action+0x495/0xbe0
[ 1959.338417][   T73]      __do_softirq+0x1b5/0x7f6
[ 1959.338417][   T73] 
[ 1959.340323][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1959.340323][   T73]      netdev_get_by_index+0x5e/0x80
[ 1959.340323][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1959.340323][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1959.340323][   T73]      ip6_route_add+0x1c/0x140
[ 1959.340323][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1959.340323][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1959.340323][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1959.340323][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1959.340323][   T73]      netlink_rcv_skb+0x130/0x360
[ 1959.340323][   T73]      netlink_unicast+0x449/0x710
[ 1959.340323][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1959.340323][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1959.340323][   T73]      ___sys_sendmsg+0xee/0x170
[ 1959.340323][   T73]      __sys_sendmsg+0xcd/0x170
[ 1959.340323][   T73]      do_syscall_64+0xc6/0x1e0
[ 1959.340323][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1959.340323][   T73] 
[ 1959.342632][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1959.342632][   T73]      netdev_get_by_index+0x5e/0x80
[ 1959.342632][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1959.342632][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1959.342632][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1959.342632][   T73]      ipv6_add_addr+0x411/0x2000
[ 1959.342632][   T73]      inet6_addr_add+0x30e/0xa40
[ 1959.342632][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1959.342632][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1959.342632][   T73]      netlink_rcv_skb+0x130/0x360
[ 1959.342632][   T73]      netlink_unicast+0x449/0x710
[ 1959.342632][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1959.342632][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1959.342632][   T73]      ___sys_sendmsg+0xee/0x170
[ 1959.342632][   T73]      __sys_sendmsg+0xcd/0x170
[ 1959.342632][   T73]      do_syscall_64+0xc6/0x1e0
[ 1959.342632][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1959.342632][   T73] 
[ 1959.344862][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1959.344862][   T73]      netdev_get_by_index+0x5e/0x80
[ 1959.344862][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1959.344862][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1959.344862][   T73]      ip6_route_add+0x1c/0x140
[ 1959.344862][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1959.344862][   T73]      addrconf_add_dev+0xe2/0x170
[ 1959.344862][   T73]      inet6_addr_add+0x12f/0xa40
[ 1959.344862][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1959.344862][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1959.344862][   T73]      netlink_rcv_skb+0x130/0x360
[ 1959.344862][   T73]      netlink_unicast+0x449/0x710
[ 1959.344862][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1959.344862][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1959.344862][   T73]      ___sys_sendmsg+0xee/0x170
[ 1959.344862][   T73]      __sys_sendmsg+0xcd/0x170
[ 1959.344862][   T73]      do_syscall_64+0xc6/0x1e0
[ 1959.344862][   T73] 
[ 1959.347159][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1959.347159][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1959.347159][   T73]      ipv6_find_idev+0x102/0x170
[ 1959.347159][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1959.347159][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1959.347159][   T73]      netlink_rcv_skb+0x130/0x360
[ 1959.347159][   T73]      netlink_unicast+0x449/0x710
[ 1959.347159][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1959.347159][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1959.347159][   T73]      ___sys_sendmsg+0xee/0x170
[ 1959.347159][   T73]      __sys_sendmsg+0xcd/0x170
[ 1959.347159][   T73]      do_syscall_64+0xc6/0x1e0
[ 1959.347159][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1959.347159][   T73] 
[ 1959.348897][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1959.348897][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1959.348897][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1959.348897][   T73]      ipv6_find_idev+0x102/0x170
[ 1959.348897][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1959.348897][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1959.348897][   T73]      netlink_rcv_skb+0x130/0x360
[ 1959.348897][   T73]      netlink_unicast+0x449/0x710
[ 1959.348897][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1959.348897][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1959.348897][   T73]      ___sys_sendmsg+0xee/0x170
[ 1959.348897][   T73]      __sys_sendmsg+0xcd/0x170
[ 1959.348897][   T73]      do_syscall_64+0xc6/0x1e0
[ 1959.348897][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1959.348897][   T73] 
[ 1959.350868][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1959.351181][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1959.351181][   T73]      netdev_get_by_index+0x5e/0x80
[ 1959.351181][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1959.351181][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1959.351181][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1959.351181][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1959.351181][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1959.351181][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1959.351181][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1959.351181][   T73]      addrconf_dad_begin+0x310/0x670
[ 1959.351181][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1959.351181][   T73]      process_one_work+0x84d/0x18a0
[ 1959.351181][   T73]      worker_thread+0x587/0xd30
[ 1959.351181][   T73]      kthread+0x28a/0x350
[ 1959.351181][   T73]      ret_from_fork+0x31/0x70
[ 1959.351181][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1959.351181][   T73] 
[ 1959.353286][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1959.353286][   T73]      netdev_get_by_index+0x5e/0x80
[ 1959.353286][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1959.353286][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1959.353286][   T73]      ip6_route_add+0x1c/0x140
[ 1959.353286][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1959.353286][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1959.353286][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1959.353286][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1959.353286][   T73]      netlink_rcv_skb+0x130/0x360
[ 1959.353286][   T73]      netlink_unicast+0x449/0x710
[ 1959.353286][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1959.353286][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1959.353286][   T73]      ___sys_sendmsg+0xee/0x170
[ 1959.353286][   T73]      __sys_sendmsg+0xcd/0x170
[ 1959.353286][   T73]      do_syscall_64+0xc6/0x1e0
[ 1959.353286][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1959.353286][   T73] 
[ 1959.355469][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1959.355469][   T73]      netdev_get_by_index+0x5e/0x80
[ 1959.355469][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1959.355469][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1959.355469][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1959.355469][   T73]      ipv6_add_addr+0x411/0x2000
[ 1959.355469][   T73]      inet6_addr_add+0x30e/0xa40
[ 1959.355469][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1959.355469][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1959.355469][   T73]      netlink_rcv_skb+0x130/0x360
[ 1959.355469][   T73]      netlink_unicast+0x449/0x710
[ 1959.355469][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1959.355469][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1959.355469][   T73]      ___sys_sendmsg+0xee/0x170
[ 1959.355469][   T73]      __sys_sendmsg+0xcd/0x170
[ 1959.355469][   T73]      do_syscall_64+0xc6/0x1e0
[ 1959.355469][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1959.355469][   T73] 
[ 1959.357644][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1959.357644][   T73]      netdev_get_by_index+0x5e/0x80
[ 1959.357644][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1959.357644][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1959.357644][   T73]      ip6_route_add+0x1c/0x140
[ 1959.357644][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1959.357644][   T73]      addrconf_add_dev+0xe2/0x170
[ 1959.357644][   T73]      inet6_addr_add+0x12f/0xa40
[ 1959.357644][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1959.357644][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1959.357644][   T73]      netlink_rcv_skb+0x130/0x360
[ 1959.357644][   T73]      netlink_unicast+0x449/0x710
[ 1959.357644][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1959.357644][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1959.357644][   T73]      ___sys_sendmsg+0xee/0x170
[ 1959.357644][   T73]      __sys_sendmsg+0xcd/0x170
[ 1959.357644][   T73]      do_syscall_64+0xc6/0x1e0
[ 1959.357644][   T73] 
[ 1959.359714][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1959.359714][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1959.359714][   T73]      ipv6_find_idev+0x102/0x170
[ 1959.359714][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1959.359714][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1959.359714][   T73]      netlink_rcv_skb+0x130/0x360
[ 1959.359714][   T73]      netlink_unicast+0x449/0x710
[ 1959.359714][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1959.359714][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1959.359714][   T73]      ___sys_sendmsg+0xee/0x170
[ 1959.359714][   T73]      __sys_sendmsg+0xcd/0x170
[ 1959.359714][   T73]      do_syscall_64+0xc6/0x1e0
[ 1959.359714][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1959.359714][   T73] 
[ 1959.361334][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1959.361334][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1959.361334][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1959.361334][   T73]      ipv6_find_idev+0x102/0x170
[ 1959.361334][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1959.361334][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1959.361334][   T73]      netlink_rcv_skb+0x130/0x360
[ 1959.361334][   T73]      netlink_unicast+0x449/0x710
[ 1959.361334][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1959.361334][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1959.361334][   T73]      ___sys_sendmsg+0xee/0x170
[ 1959.361334][   T73]      __sys_sendmsg+0xcd/0x170
[ 1959.361334][   T73]      do_syscall_64+0xc6/0x1e0
[ 1959.361334][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1959.361334][   T73] 
[ 1959.363143][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1959.363445][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1959.363445][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1959.363445][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1959.363445][   T73]      fib6_nh_init+0xa22/0x1580
[ 1959.363445][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1959.363445][   T73]      ip6_route_add+0x1c/0x140
[ 1959.363445][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1959.363445][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1959.363445][   T73]      netlink_rcv_skb+0x130/0x360
[ 1959.363445][   T73]      netlink_unicast+0x449/0x710
[ 1959.363445][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1959.363445][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1959.363445][   T73]      ___sys_sendmsg+0xee/0x170
[ 1959.363445][   T73]      __sys_sendmsg+0xcd/0x170
[ 1959.363445][   T73]      do_syscall_64+0xc6/0x1e0
[ 1959.363445][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1959.363445][   T73] 
[ 1959.365579][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1959.365579][   T73]      dst_init+0x84/0x4a0
[ 1959.365579][   T73]      dst_alloc+0x97/0x150
[ 1959.365579][   T73]      ip6_dst_alloc+0x23/0x90
[ 1959.365579][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1959.365579][   T73]      ip6_pol_route+0x56f/0x840
[ 1959.365579][   T73]      fib6_rule_lookup+0x456/0x630
[ 1959.365579][   T73]      ip6_route_input+0x59c/0xa50
[ 1959.365579][   T73]      ipv6_rcv+0x397/0x810
[ 1959.365579][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1959.365579][   T73]      process_backlog+0x101/0x620
[ 1959.365579][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1959.365579][   T73]      net_rx_action+0x495/0xbe0
[ 1959.365579][   T73]      __do_softirq+0x1b5/0x7f6
[ 1959.365579][   T73] 
[ 1959.367569][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1959.367569][   T73]      netdev_get_by_index+0x5e/0x80
[ 1959.367569][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1959.367569][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1959.367569][   T73]      ip6_route_add+0x1c/0x140
[ 1959.367569][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1959.367569][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1959.367569][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1959.367569][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1959.367569][   T73]      netlink_rcv_skb+0x130/0x360
[ 1959.367569][   T73]      netlink_unicast+0x449/0x710
[ 1959.367569][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1959.367569][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1959.367569][   T73]      ___sys_sendmsg+0xee/0x170
[ 1959.367569][   T73]      __sys_sendmsg+0xcd/0x170
[ 1959.367569][   T73]      do_syscall_64+0xc6/0x1e0
[ 1959.367569][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1959.367569][   T73] 
[ 1959.369955][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1959.369955][   T73]      netdev_get_by_index+0x5e/0x80
[ 1959.369955][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1959.369955][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1959.369955][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1959.369955][   T73]      ipv6_add_addr+0x411/0x2000
[ 1959.369955][   T73]      inet6_addr_add+0x30e/0xa40
[ 1959.369955][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1959.369955][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1959.369955][   T73]      netlink_rcv_skb+0x130/0x360
[ 1959.369955][   T73]      netlink_unicast+0x449/0x710
[ 1959.369955][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1959.369955][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1959.369955][   T73]      ___sys_sendmsg+0xee/0x170
[ 1959.369955][   T73]      __sys_sendmsg+0xcd/0x170
[ 1959.369955][   T73]      do_syscall_64+0xc6/0x1e0
[ 1959.369955][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1959.369955][   T73] 
[ 1959.372255][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1959.372255][   T73]      netdev_get_by_index+0x5e/0x80
[ 1959.372255][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1959.372255][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1959.372255][   T73]      ip6_route_add+0x1c/0x140
[ 1959.372255][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1959.372255][   T73]      addrconf_add_dev+0xe2/0x170
[ 1959.372255][   T73]      inet6_addr_add+0x12f/0xa40
[ 1959.372255][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1959.372255][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1959.372255][   T73]      netlink_rcv_skb+0x130/0x360
[ 1959.372255][   T73]      netlink_unicast+0x449/0x710
[ 1959.372255][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1959.372255][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1959.372255][   T73]      ___sys_sendmsg+0xee/0x170
[ 1959.372255][   T73]      __sys_sendmsg+0xcd/0x170
[ 1959.372255][   T73]      do_syscall_64+0xc6/0x1e0
[ 1959.372255][   T73] 
[ 1959.374520][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1959.374520][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1959.374520][   T73]      ipv6_find_idev+0x102/0x170
[ 1959.374520][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1959.374520][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1959.374520][   T73]      netlink_rcv_skb+0x130/0x360
[ 1959.374520][   T73]      netlink_unicast+0x449/0x710
[ 1959.374520][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1959.374520][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1959.374520][   T73]      ___sys_sendmsg+0xee/0x170
[ 1959.374520][   T73]      __sys_sendmsg+0xcd/0x170
[ 1959.374520][   T73]      do_syscall_64+0xc6/0x1e0
[ 1959.374520][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1959.374520][   T73] 
[ 1959.376306][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1959.376306][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1959.376306][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1959.376306][   T73]      ipv6_find_idev+0x102/0x170
[ 1959.376306][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1959.376306][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1959.376306][   T73]      netlink_rcv_skb+0x130/0x360
[ 1959.376306][   T73]      netlink_unicast+0x449/0x710
[ 1959.376306][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1959.376306][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1959.376306][   T73]      ___sys_sendmsg+0xee/0x170
[ 1959.376306][   T73]      __sys_sendmsg+0xcd/0x170
[ 1959.376306][   T73]      do_syscall_64+0xc6/0x1e0
[ 1959.376306][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1959.376306][   T73] 
[ 1959.378286][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1959.378570][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1959.378570][   T73]      netdev_get_by_index+0x5e/0x80
[ 1959.378570][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1959.378570][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1959.378570][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1959.378570][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1959.378570][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1959.378570][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1959.378570][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1959.378570][   T73]      addrconf_dad_begin+0x310/0x670
[ 1959.378570][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1959.378570][   T73]      process_one_work+0x84d/0x18a0
[ 1959.378570][   T73]      worker_thread+0x587/0xd30
[ 1959.378570][   T73]      kthread+0x28a/0x350
[ 1959.378570][   T73]      ret_from_fork+0x31/0x70
[ 1959.378570][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1959.378570][   T73] 
[ 1959.381653][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1959.381653][   T73]      netdev_get_by_index+0x5e/0x80
[ 1959.381653][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1959.381653][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1959.381653][   T73]      ip6_route_add+0x1c/0x140
[ 1959.381653][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1959.381653][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1959.381653][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1959.381653][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1959.381653][   T73]      netlink_rcv_skb+0x130/0x360
[ 1959.381653][   T73]      netlink_unicast+0x449/0x710
[ 1959.381653][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1959.381653][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1959.381653][   T73]      ___sys_sendmsg+0xee/0x170
[ 1959.381653][   T73]      __sys_sendmsg+0xcd/0x170
[ 1959.381653][   T73]      do_syscall_64+0xc6/0x1e0
[ 1959.381653][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1959.381653][   T73] 
[ 1959.385194][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1959.385194][   T73]      netdev_get_by_index+0x5e/0x80
[ 1959.385194][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1959.385194][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1959.385194][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1959.385194][   T73]      ipv6_add_addr+0x411/0x2000
[ 1959.385194][   T73]      inet6_addr_add+0x30e/0xa40
[ 1959.385194][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1959.385194][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1959.385194][   T73]      netlink_rcv_skb+0x130/0x360
[ 1959.385194][   T73]      netlink_unicast+0x449/0x710
[ 1959.385194][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1959.385194][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1959.385194][   T73]      ___sys_sendmsg+0xee/0x170
[ 1959.385194][   T73]      __sys_sendmsg+0xcd/0x170
[ 1959.385194][   T73]      do_syscall_64+0xc6/0x1e0
[ 1959.385194][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1959.385194][   T73] 
[ 1959.388645][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1959.388645][   T73]      netdev_get_by_index+0x5e/0x80
[ 1959.388645][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1959.388645][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1959.388645][   T73]      ip6_route_add+0x1c/0x140
[ 1959.388645][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1959.388645][   T73]      addrconf_add_dev+0xe2/0x170
[ 1959.388645][   T73]      inet6_addr_add+0x12f/0xa40
[ 1959.388645][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1959.388645][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1959.388645][   T73]      netlink_rcv_skb+0x130/0x360
[ 1959.388645][   T73]      netlink_unicast+0x449/0x710
[ 1959.388645][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1959.388645][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1959.388645][   T73]      ___sys_sendmsg+0xee/0x170
[ 1959.388645][   T73]      __sys_sendmsg+0xcd/0x170
[ 1959.388645][   T73]      do_syscall_64+0xc6/0x1e0
[ 1959.388645][   T73] 
[ 1959.392306][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1959.392306][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1959.392306][   T73]      ipv6_find_idev+0x102/0x170
[ 1959.392306][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1959.392306][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1959.392306][   T73]      netlink_rcv_skb+0x130/0x360
[ 1959.392306][   T73]      netlink_unicast+0x449/0x710
[ 1959.392306][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1959.392306][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1959.392306][   T73]      ___sys_sendmsg+0xee/0x170
[ 1959.392306][   T73]      __sys_sendmsg+0xcd/0x170
[ 1959.392306][   T73]      do_syscall_64+0xc6/0x1e0
[ 1959.392306][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1959.392306][   T73] 
[ 1959.394983][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1959.394983][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1959.394983][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1959.394983][   T73]      ipv6_find_idev+0x102/0x170
[ 1959.394983][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1959.394983][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1959.394983][   T73]      netlink_rcv_skb+0x130/0x360
[ 1959.394983][   T73]      netlink_unicast+0x449/0x710
[ 1959.394983][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1959.394983][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1959.394983][   T73]      ___sys_sendmsg+0xee/0x170
[ 1959.394983][   T73]      __sys_sendmsg+0xcd/0x170
[ 1959.394983][   T73]      do_syscall_64+0xc6/0x1e0
[ 1959.394983][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1959.394983][   T73] 
[ 1969.455746][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1969.456182][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1969.456182][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1969.456182][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1969.456182][   T73]      fib6_nh_init+0xa22/0x1580
[ 1969.456182][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1969.456182][   T73]      ip6_route_add+0x1c/0x140
[ 1969.456182][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1969.456182][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1969.456182][   T73]      netlink_rcv_skb+0x130/0x360
[ 1969.456182][   T73]      netlink_unicast+0x449/0x710
[ 1969.456182][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1969.456182][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1969.456182][   T73]      ___sys_sendmsg+0xee/0x170
[ 1969.456182][   T73]      __sys_sendmsg+0xcd/0x170
[ 1969.456182][   T73]      do_syscall_64+0xc6/0x1e0
[ 1969.456182][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1969.456182][   T73] 
[ 1969.458102][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1969.458102][   T73]      dst_init+0x84/0x4a0
[ 1969.458102][   T73]      dst_alloc+0x97/0x150
[ 1969.458102][   T73]      ip6_dst_alloc+0x23/0x90
[ 1969.458102][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1969.458102][   T73]      ip6_pol_route+0x56f/0x840
[ 1969.458102][   T73]      fib6_rule_lookup+0x456/0x630
[ 1969.458102][   T73]      ip6_route_input+0x59c/0xa50
[ 1969.458102][   T73]      ipv6_rcv+0x397/0x810
[ 1969.458102][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1969.458102][   T73]      process_backlog+0x101/0x620
[ 1969.458102][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1969.458102][   T73]      net_rx_action+0x495/0xbe0
[ 1969.458102][   T73]      __do_softirq+0x1b5/0x7f6
[ 1969.458102][   T73] 
[ 1969.459756][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1969.459756][   T73]      netdev_get_by_index+0x5e/0x80
[ 1969.459756][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1969.459756][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1969.459756][   T73]      ip6_route_add+0x1c/0x140
[ 1969.459756][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1969.459756][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1969.459756][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1969.459756][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1969.459756][   T73]      netlink_rcv_skb+0x130/0x360
[ 1969.459756][   T73]      netlink_unicast+0x449/0x710
[ 1969.459756][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1969.459756][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1969.459756][   T73]      ___sys_sendmsg+0xee/0x170
[ 1969.459756][   T73]      __sys_sendmsg+0xcd/0x170
[ 1969.459756][   T73]      do_syscall_64+0xc6/0x1e0
[ 1969.459756][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1969.459756][   T73] 
[ 1969.461781][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1969.461781][   T73]      netdev_get_by_index+0x5e/0x80
[ 1969.461781][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1969.461781][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1969.461781][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1969.461781][   T73]      ipv6_add_addr+0x411/0x2000
[ 1969.461781][   T73]      inet6_addr_add+0x30e/0xa40
[ 1969.461781][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1969.461781][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1969.461781][   T73]      netlink_rcv_skb+0x130/0x360
[ 1969.461781][   T73]      netlink_unicast+0x449/0x710
[ 1969.461781][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1969.461781][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1969.461781][   T73]      ___sys_sendmsg+0xee/0x170
[ 1969.461781][   T73]      __sys_sendmsg+0xcd/0x170
[ 1969.461781][   T73]      do_syscall_64+0xc6/0x1e0
[ 1969.461781][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1969.461781][   T73] 
[ 1969.463789][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1969.463789][   T73]      netdev_get_by_index+0x5e/0x80
[ 1969.463789][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1969.463789][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1969.463789][   T73]      ip6_route_add+0x1c/0x140
[ 1969.463789][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1969.463789][   T73]      addrconf_add_dev+0xe2/0x170
[ 1969.463789][   T73]      inet6_addr_add+0x12f/0xa40
[ 1969.463789][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1969.463789][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1969.463789][   T73]      netlink_rcv_skb+0x130/0x360
[ 1969.463789][   T73]      netlink_unicast+0x449/0x710
[ 1969.463789][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1969.463789][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1969.463789][   T73]      ___sys_sendmsg+0xee/0x170
[ 1969.463789][   T73]      __sys_sendmsg+0xcd/0x170
[ 1969.463789][   T73]      do_syscall_64+0xc6/0x1e0
[ 1969.463789][   T73] 
[ 1969.465782][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1969.465782][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1969.465782][   T73]      ipv6_find_idev+0x102/0x170
[ 1969.465782][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1969.465782][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1969.465782][   T73]      netlink_rcv_skb+0x130/0x360
[ 1969.465782][   T73]      netlink_unicast+0x449/0x710
[ 1969.465782][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1969.465782][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1969.465782][   T73]      ___sys_sendmsg+0xee/0x170
[ 1969.465782][   T73]      __sys_sendmsg+0xcd/0x170
[ 1969.465782][   T73]      do_syscall_64+0xc6/0x1e0
[ 1969.465782][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1969.465782][   T73] 
[ 1969.467328][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1969.467328][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1969.467328][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1969.467328][   T73]      ipv6_find_idev+0x102/0x170
[ 1969.467328][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1969.467328][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1969.467328][   T73]      netlink_rcv_skb+0x130/0x360
[ 1969.467328][   T73]      netlink_unicast+0x449/0x710
[ 1969.467328][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1969.467328][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1969.467328][   T73]      ___sys_sendmsg+0xee/0x170
[ 1969.467328][   T73]      __sys_sendmsg+0xcd/0x170
[ 1969.467328][   T73]      do_syscall_64+0xc6/0x1e0
[ 1969.467328][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1969.467328][   T73] 
[ 1969.469030][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1969.469311][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1969.469311][   T73]      netdev_get_by_index+0x5e/0x80
[ 1969.469311][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1969.469311][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1969.469311][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1969.469311][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1969.469311][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1969.469311][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1969.469311][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1969.469311][   T73]      addrconf_dad_begin+0x310/0x670
[ 1969.469311][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1969.469311][   T73]      process_one_work+0x84d/0x18a0
[ 1969.469311][   T73]      worker_thread+0x587/0xd30
[ 1969.469311][   T73]      kthread+0x28a/0x350
[ 1969.469311][   T73]      ret_from_fork+0x31/0x70
[ 1969.469311][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1969.469311][   T73] 
[ 1969.471230][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1969.471230][   T73]      netdev_get_by_index+0x5e/0x80
[ 1969.471230][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1969.471230][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1969.471230][   T73]      ip6_route_add+0x1c/0x140
[ 1969.471230][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1969.471230][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1969.471230][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1969.471230][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1969.471230][   T73]      netlink_rcv_skb+0x130/0x360
[ 1969.471230][   T73]      netlink_unicast+0x449/0x710
[ 1969.471230][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1969.471230][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1969.471230][   T73]      ___sys_sendmsg+0xee/0x170
[ 1969.471230][   T73]      __sys_sendmsg+0xcd/0x170
[ 1969.471230][   T73]      do_syscall_64+0xc6/0x1e0
[ 1969.471230][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1969.471230][   T73] 
[ 1969.473250][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1969.473250][   T73]      netdev_get_by_index+0x5e/0x80
[ 1969.473250][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1969.473250][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1969.473250][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1969.473250][   T73]      ipv6_add_addr+0x411/0x2000
[ 1969.473250][   T73]      inet6_addr_add+0x30e/0xa40
[ 1969.473250][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1969.473250][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1969.473250][   T73]      netlink_rcv_skb+0x130/0x360
[ 1969.473250][   T73]      netlink_unicast+0x449/0x710
[ 1969.473250][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1969.473250][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1969.473250][   T73]      ___sys_sendmsg+0xee/0x170
[ 1969.473250][   T73]      __sys_sendmsg+0xcd/0x170
[ 1969.473250][   T73]      do_syscall_64+0xc6/0x1e0
[ 1969.473250][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1969.473250][   T73] 
[ 1969.475255][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1969.475255][   T73]      netdev_get_by_index+0x5e/0x80
[ 1969.475255][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1969.475255][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1969.475255][   T73]      ip6_route_add+0x1c/0x140
[ 1969.475255][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1969.475255][   T73]      addrconf_add_dev+0xe2/0x170
[ 1969.475255][   T73]      inet6_addr_add+0x12f/0xa40
[ 1969.475255][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1969.475255][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1969.475255][   T73]      netlink_rcv_skb+0x130/0x360
[ 1969.475255][   T73]      netlink_unicast+0x449/0x710
[ 1969.475255][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1969.475255][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1969.475255][   T73]      ___sys_sendmsg+0xee/0x170
[ 1969.475255][   T73]      __sys_sendmsg+0xcd/0x170
[ 1969.475255][   T73]      do_syscall_64+0xc6/0x1e0
[ 1969.475255][   T73] 
[ 1969.477238][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1969.477238][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1969.477238][   T73]      ipv6_find_idev+0x102/0x170
[ 1969.477238][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1969.477238][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1969.477238][   T73]      netlink_rcv_skb+0x130/0x360
[ 1969.477238][   T73]      netlink_unicast+0x449/0x710
[ 1969.477238][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1969.477238][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1969.477238][   T73]      ___sys_sendmsg+0xee/0x170
[ 1969.477238][   T73]      __sys_sendmsg+0xcd/0x170
[ 1969.477238][   T73]      do_syscall_64+0xc6/0x1e0
[ 1969.477238][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1969.477238][   T73] 
[ 1969.478785][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1969.478785][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1969.478785][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1969.478785][   T73]      ipv6_find_idev+0x102/0x170
[ 1969.478785][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1969.478785][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1969.478785][   T73]      netlink_rcv_skb+0x130/0x360
[ 1969.478785][   T73]      netlink_unicast+0x449/0x710
[ 1969.478785][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1969.478785][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1969.478785][   T73]      ___sys_sendmsg+0xee/0x170
[ 1969.478785][   T73]      __sys_sendmsg+0xcd/0x170
[ 1969.478785][   T73]      do_syscall_64+0xc6/0x1e0
[ 1969.478785][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1969.478785][   T73] 
[ 1969.480495][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1969.480773][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1969.480773][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1969.480773][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1969.480773][   T73]      fib6_nh_init+0xa22/0x1580
[ 1969.480773][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1969.480773][   T73]      ip6_route_add+0x1c/0x140
[ 1969.480773][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1969.480773][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1969.480773][   T73]      netlink_rcv_skb+0x130/0x360
[ 1969.480773][   T73]      netlink_unicast+0x449/0x710
[ 1969.480773][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1969.480773][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1969.480773][   T73]      ___sys_sendmsg+0xee/0x170
[ 1969.480773][   T73]      __sys_sendmsg+0xcd/0x170
[ 1969.480773][   T73]      do_syscall_64+0xc6/0x1e0
[ 1969.480773][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1969.480773][   T73] 
[ 1969.482851][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1969.482851][   T73]      dst_init+0x84/0x4a0
[ 1969.482851][   T73]      dst_alloc+0x97/0x150
[ 1969.482851][   T73]      ip6_dst_alloc+0x23/0x90
[ 1969.482851][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1969.482851][   T73]      ip6_pol_route+0x56f/0x840
[ 1969.482851][   T73]      fib6_rule_lookup+0x456/0x630
[ 1969.482851][   T73]      ip6_route_input+0x59c/0xa50
[ 1969.482851][   T73]      ipv6_rcv+0x397/0x810
[ 1969.482851][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1969.482851][   T73]      process_backlog+0x101/0x620
[ 1969.482851][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1969.482851][   T73]      net_rx_action+0x495/0xbe0
[ 1969.482851][   T73]      __do_softirq+0x1b5/0x7f6
[ 1969.482851][   T73] 
[ 1969.484741][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1969.484741][   T73]      netdev_get_by_index+0x5e/0x80
[ 1969.484741][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1969.484741][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1969.484741][   T73]      ip6_route_add+0x1c/0x140
[ 1969.484741][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1969.484741][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1969.484741][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1969.484741][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1969.484741][   T73]      netlink_rcv_skb+0x130/0x360
[ 1969.484741][   T73]      netlink_unicast+0x449/0x710
[ 1969.484741][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1969.484741][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1969.484741][   T73]      ___sys_sendmsg+0xee/0x170
[ 1969.484741][   T73]      __sys_sendmsg+0xcd/0x170
[ 1969.484741][   T73]      do_syscall_64+0xc6/0x1e0
[ 1969.484741][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1969.484741][   T73] 
[ 1969.487001][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1969.487001][   T73]      netdev_get_by_index+0x5e/0x80
[ 1969.487001][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1969.487001][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1969.487001][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1969.487001][   T73]      ipv6_add_addr+0x411/0x2000
[ 1969.487001][   T73]      inet6_addr_add+0x30e/0xa40
[ 1969.487001][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1969.487001][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1969.487001][   T73]      netlink_rcv_skb+0x130/0x360
[ 1969.487001][   T73]      netlink_unicast+0x449/0x710
[ 1969.487001][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1969.487001][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1969.487001][   T73]      ___sys_sendmsg+0xee/0x170
[ 1969.487001][   T73]      __sys_sendmsg+0xcd/0x170
[ 1969.487001][   T73]      do_syscall_64+0xc6/0x1e0
[ 1969.487001][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1969.487001][   T73] 
[ 1969.489718][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1969.489718][   T73]      netdev_get_by_index+0x5e/0x80
[ 1969.489718][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1969.489718][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1969.489718][   T73]      ip6_route_add+0x1c/0x140
[ 1969.489718][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1969.489718][   T73]      addrconf_add_dev+0xe2/0x170
[ 1969.489718][   T73]      inet6_addr_add+0x12f/0xa40
[ 1969.489718][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1969.489718][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1969.489718][   T73]      netlink_rcv_skb+0x130/0x360
[ 1969.489718][   T73]      netlink_unicast+0x449/0x710
[ 1969.489718][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1969.489718][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1969.489718][   T73]      ___sys_sendmsg+0xee/0x170
[ 1969.489718][   T73]      __sys_sendmsg+0xcd/0x170
[ 1969.489718][   T73]      do_syscall_64+0xc6/0x1e0
[ 1969.489718][   T73] 
[ 1969.491938][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1969.491938][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1969.491938][   T73]      ipv6_find_idev+0x102/0x170
[ 1969.491938][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1969.491938][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1969.491938][   T73]      netlink_rcv_skb+0x130/0x360
[ 1969.491938][   T73]      netlink_unicast+0x449/0x710
[ 1969.491938][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1969.491938][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1969.491938][   T73]      ___sys_sendmsg+0xee/0x170
[ 1969.491938][   T73]      __sys_sendmsg+0xcd/0x170
[ 1969.491938][   T73]      do_syscall_64+0xc6/0x1e0
[ 1969.491938][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1969.491938][   T73] 
[ 1969.493729][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1969.493729][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1969.493729][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1969.493729][   T73]      ipv6_find_idev+0x102/0x170
[ 1969.493729][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1969.493729][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1969.493729][   T73]      netlink_rcv_skb+0x130/0x360
[ 1969.493729][   T73]      netlink_unicast+0x449/0x710
[ 1969.493729][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1969.493729][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1969.493729][   T73]      ___sys_sendmsg+0xee/0x170
[ 1969.493729][   T73]      __sys_sendmsg+0xcd/0x170
[ 1969.493729][   T73]      do_syscall_64+0xc6/0x1e0
[ 1969.493729][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1969.493729][   T73] 
[ 1969.495691][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1969.495969][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1969.495969][   T73]      netdev_get_by_index+0x5e/0x80
[ 1969.495969][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1969.495969][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1969.495969][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1969.495969][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1969.495969][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1969.495969][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1969.495969][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1969.495969][   T73]      addrconf_dad_begin+0x310/0x670
[ 1969.495969][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1969.495969][   T73]      process_one_work+0x84d/0x18a0
[ 1969.495969][   T73]      worker_thread+0x587/0xd30
[ 1969.495969][   T73]      kthread+0x28a/0x350
[ 1969.495969][   T73]      ret_from_fork+0x31/0x70
[ 1969.495969][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1969.495969][   T73] 
[ 1969.498074][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1969.498074][   T73]      netdev_get_by_index+0x5e/0x80
[ 1969.498074][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1969.498074][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1969.498074][   T73]      ip6_route_add+0x1c/0x140
[ 1969.498074][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1969.498074][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1969.498074][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1969.498074][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1969.498074][   T73]      netlink_rcv_skb+0x130/0x360
[ 1969.498074][   T73]      netlink_unicast+0x449/0x710
[ 1969.498074][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1969.498074][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1969.498074][   T73]      ___sys_sendmsg+0xee/0x170
[ 1969.498074][   T73]      __sys_sendmsg+0xcd/0x170
[ 1969.498074][   T73]      do_syscall_64+0xc6/0x1e0
[ 1969.498074][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1969.498074][   T73] 
[ 1969.500664][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1969.500664][   T73]      netdev_get_by_index+0x5e/0x80
[ 1969.500664][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1969.500664][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1969.500664][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1969.500664][   T73]      ipv6_add_addr+0x411/0x2000
[ 1969.500664][   T73]      inet6_addr_add+0x30e/0xa40
[ 1969.500664][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1969.500664][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1969.500664][   T73]      netlink_rcv_skb+0x130/0x360
[ 1969.500664][   T73]      netlink_unicast+0x449/0x710
[ 1969.500664][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1969.500664][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1969.500664][   T73]      ___sys_sendmsg+0xee/0x170
[ 1969.500664][   T73]      __sys_sendmsg+0xcd/0x170
[ 1969.500664][   T73]      do_syscall_64+0xc6/0x1e0
[ 1969.500664][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1969.500664][   T73] 
[ 1969.502917][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1969.502917][   T73]      netdev_get_by_index+0x5e/0x80
[ 1969.502917][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1969.502917][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1969.502917][   T73]      ip6_route_add+0x1c/0x140
[ 1969.502917][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1969.502917][   T73]      addrconf_add_dev+0xe2/0x170
[ 1969.502917][   T73]      inet6_addr_add+0x12f/0xa40
[ 1969.502917][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1969.502917][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1969.502917][   T73]      netlink_rcv_skb+0x130/0x360
[ 1969.502917][   T73]      netlink_unicast+0x449/0x710
[ 1969.502917][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1969.502917][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1969.502917][   T73]      ___sys_sendmsg+0xee/0x170
[ 1969.502917][   T73]      __sys_sendmsg+0xcd/0x170
[ 1969.502917][   T73]      do_syscall_64+0xc6/0x1e0
[ 1969.502917][   T73] 
[ 1969.505195][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1969.505195][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1969.505195][   T73]      ipv6_find_idev+0x102/0x170
[ 1969.505195][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1969.505195][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1969.505195][   T73]      netlink_rcv_skb+0x130/0x360
[ 1969.505195][   T73]      netlink_unicast+0x449/0x710
[ 1969.505195][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1969.505195][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1969.505195][   T73]      ___sys_sendmsg+0xee/0x170
[ 1969.505195][   T73]      __sys_sendmsg+0xcd/0x170
[ 1969.505195][   T73]      do_syscall_64+0xc6/0x1e0
[ 1969.505195][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1969.505195][   T73] 
[ 1969.506939][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1969.506939][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1969.506939][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1969.506939][   T73]      ipv6_find_idev+0x102/0x170
[ 1969.506939][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1969.506939][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1969.506939][   T73]      netlink_rcv_skb+0x130/0x360
[ 1969.506939][   T73]      netlink_unicast+0x449/0x710
[ 1969.506939][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1969.506939][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1969.506939][   T73]      ___sys_sendmsg+0xee/0x170
[ 1969.506939][   T73]      __sys_sendmsg+0xcd/0x170
[ 1969.506939][   T73]      do_syscall_64+0xc6/0x1e0
[ 1969.506939][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1969.506939][   T73] 
[ 1979.759757][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1979.760178][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1979.760178][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1979.760178][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1979.760178][   T73]      fib6_nh_init+0xa22/0x1580
[ 1979.760178][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1979.760178][   T73]      ip6_route_add+0x1c/0x140
[ 1979.760178][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1979.760178][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1979.760178][   T73]      netlink_rcv_skb+0x130/0x360
[ 1979.760178][   T73]      netlink_unicast+0x449/0x710
[ 1979.760178][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1979.760178][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1979.760178][   T73]      ___sys_sendmsg+0xee/0x170
[ 1979.760178][   T73]      __sys_sendmsg+0xcd/0x170
[ 1979.760178][   T73]      do_syscall_64+0xc6/0x1e0
[ 1979.760178][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1979.760178][   T73] 
[ 1979.762087][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1979.762087][   T73]      dst_init+0x84/0x4a0
[ 1979.762087][   T73]      dst_alloc+0x97/0x150
[ 1979.762087][   T73]      ip6_dst_alloc+0x23/0x90
[ 1979.762087][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1979.762087][   T73]      ip6_pol_route+0x56f/0x840
[ 1979.762087][   T73]      fib6_rule_lookup+0x456/0x630
[ 1979.762087][   T73]      ip6_route_input+0x59c/0xa50
[ 1979.762087][   T73]      ipv6_rcv+0x397/0x810
[ 1979.762087][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1979.762087][   T73]      process_backlog+0x101/0x620
[ 1979.762087][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1979.762087][   T73]      net_rx_action+0x495/0xbe0
[ 1979.762087][   T73]      __do_softirq+0x1b5/0x7f6
[ 1979.762087][   T73] 
[ 1979.763748][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1979.763748][   T73]      netdev_get_by_index+0x5e/0x80
[ 1979.763748][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1979.763748][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1979.763748][   T73]      ip6_route_add+0x1c/0x140
[ 1979.763748][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1979.763748][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1979.763748][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1979.763748][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1979.763748][   T73]      netlink_rcv_skb+0x130/0x360
[ 1979.763748][   T73]      netlink_unicast+0x449/0x710
[ 1979.763748][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1979.763748][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1979.763748][   T73]      ___sys_sendmsg+0xee/0x170
[ 1979.763748][   T73]      __sys_sendmsg+0xcd/0x170
[ 1979.763748][   T73]      do_syscall_64+0xc6/0x1e0
[ 1979.763748][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1979.763748][   T73] 
[ 1979.765871][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1979.765871][   T73]      netdev_get_by_index+0x5e/0x80
[ 1979.765871][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1979.765871][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1979.765871][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1979.765871][   T73]      ipv6_add_addr+0x411/0x2000
[ 1979.765871][   T73]      inet6_addr_add+0x30e/0xa40
[ 1979.765871][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1979.765871][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1979.765871][   T73]      netlink_rcv_skb+0x130/0x360
[ 1979.765871][   T73]      netlink_unicast+0x449/0x710
[ 1979.765871][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1979.765871][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1979.765871][   T73]      ___sys_sendmsg+0xee/0x170
[ 1979.765871][   T73]      __sys_sendmsg+0xcd/0x170
[ 1979.765871][   T73]      do_syscall_64+0xc6/0x1e0
[ 1979.765871][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1979.765871][   T73] 
[ 1979.767885][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1979.767885][   T73]      netdev_get_by_index+0x5e/0x80
[ 1979.767885][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1979.767885][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1979.767885][   T73]      ip6_route_add+0x1c/0x140
[ 1979.767885][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1979.767885][   T73]      addrconf_add_dev+0xe2/0x170
[ 1979.767885][   T73]      inet6_addr_add+0x12f/0xa40
[ 1979.767885][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1979.767885][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1979.767885][   T73]      netlink_rcv_skb+0x130/0x360
[ 1979.767885][   T73]      netlink_unicast+0x449/0x710
[ 1979.767885][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1979.767885][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1979.767885][   T73]      ___sys_sendmsg+0xee/0x170
[ 1979.767885][   T73]      __sys_sendmsg+0xcd/0x170
[ 1979.767885][   T73]      do_syscall_64+0xc6/0x1e0
[ 1979.767885][   T73] 
[ 1979.769855][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1979.769855][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1979.769855][   T73]      ipv6_find_idev+0x102/0x170
[ 1979.769855][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1979.769855][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1979.769855][   T73]      netlink_rcv_skb+0x130/0x360
[ 1979.769855][   T73]      netlink_unicast+0x449/0x710
[ 1979.769855][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1979.769855][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1979.769855][   T73]      ___sys_sendmsg+0xee/0x170
[ 1979.769855][   T73]      __sys_sendmsg+0xcd/0x170
[ 1979.769855][   T73]      do_syscall_64+0xc6/0x1e0
[ 1979.769855][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1979.769855][   T73] 
[ 1979.771406][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1979.771406][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1979.771406][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1979.771406][   T73]      ipv6_find_idev+0x102/0x170
[ 1979.771406][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1979.771406][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1979.771406][   T73]      netlink_rcv_skb+0x130/0x360
[ 1979.771406][   T73]      netlink_unicast+0x449/0x710
[ 1979.771406][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1979.771406][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1979.771406][   T73]      ___sys_sendmsg+0xee/0x170
[ 1979.771406][   T73]      __sys_sendmsg+0xcd/0x170
[ 1979.771406][   T73]      do_syscall_64+0xc6/0x1e0
[ 1979.771406][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1979.771406][   T73] 
[ 1979.773109][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1979.773389][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1979.773389][   T73]      netdev_get_by_index+0x5e/0x80
[ 1979.773389][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1979.773389][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1979.773389][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1979.773389][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1979.773389][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1979.773389][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1979.773389][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1979.773389][   T73]      addrconf_dad_begin+0x310/0x670
[ 1979.773389][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1979.773389][   T73]      process_one_work+0x84d/0x18a0
[ 1979.773389][   T73]      worker_thread+0x587/0xd30
[ 1979.773389][   T73]      kthread+0x28a/0x350
[ 1979.773389][   T73]      ret_from_fork+0x31/0x70
[ 1979.773389][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1979.773389][   T73] 
[ 1979.775315][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1979.775315][   T73]      netdev_get_by_index+0x5e/0x80
[ 1979.775315][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1979.775315][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1979.775315][   T73]      ip6_route_add+0x1c/0x140
[ 1979.775315][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1979.775315][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1979.775315][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1979.775315][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1979.775315][   T73]      netlink_rcv_skb+0x130/0x360
[ 1979.775315][   T73]      netlink_unicast+0x449/0x710
[ 1979.775315][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1979.775315][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1979.775315][   T73]      ___sys_sendmsg+0xee/0x170
[ 1979.775315][   T73]      __sys_sendmsg+0xcd/0x170
[ 1979.775315][   T73]      do_syscall_64+0xc6/0x1e0
[ 1979.775315][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1979.775315][   T73] 
[ 1979.777347][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1979.777347][   T73]      netdev_get_by_index+0x5e/0x80
[ 1979.777347][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1979.777347][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1979.777347][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1979.777347][   T73]      ipv6_add_addr+0x411/0x2000
[ 1979.777347][   T73]      inet6_addr_add+0x30e/0xa40
[ 1979.777347][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1979.777347][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1979.777347][   T73]      netlink_rcv_skb+0x130/0x360
[ 1979.777347][   T73]      netlink_unicast+0x449/0x710
[ 1979.777347][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1979.777347][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1979.777347][   T73]      ___sys_sendmsg+0xee/0x170
[ 1979.777347][   T73]      __sys_sendmsg+0xcd/0x170
[ 1979.777347][   T73]      do_syscall_64+0xc6/0x1e0
[ 1979.777347][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1979.777347][   T73] 
[ 1979.779363][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1979.779363][   T73]      netdev_get_by_index+0x5e/0x80
[ 1979.779363][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1979.779363][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1979.779363][   T73]      ip6_route_add+0x1c/0x140
[ 1979.779363][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1979.779363][   T73]      addrconf_add_dev+0xe2/0x170
[ 1979.779363][   T73]      inet6_addr_add+0x12f/0xa40
[ 1979.779363][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1979.779363][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1979.779363][   T73]      netlink_rcv_skb+0x130/0x360
[ 1979.779363][   T73]      netlink_unicast+0x449/0x710
[ 1979.779363][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1979.779363][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1979.779363][   T73]      ___sys_sendmsg+0xee/0x170
[ 1979.779363][   T73]      __sys_sendmsg+0xcd/0x170
[ 1979.779363][   T73]      do_syscall_64+0xc6/0x1e0
[ 1979.779363][   T73] 
[ 1979.781338][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1979.781338][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1979.781338][   T73]      ipv6_find_idev+0x102/0x170
[ 1979.781338][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1979.781338][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1979.781338][   T73]      netlink_rcv_skb+0x130/0x360
[ 1979.781338][   T73]      netlink_unicast+0x449/0x710
[ 1979.781338][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1979.781338][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1979.781338][   T73]      ___sys_sendmsg+0xee/0x170
[ 1979.781338][   T73]      __sys_sendmsg+0xcd/0x170
[ 1979.781338][   T73]      do_syscall_64+0xc6/0x1e0
[ 1979.781338][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1979.781338][   T73] 
[ 1979.782886][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1979.782886][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1979.782886][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1979.782886][   T73]      ipv6_find_idev+0x102/0x170
[ 1979.782886][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1979.782886][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1979.782886][   T73]      netlink_rcv_skb+0x130/0x360
[ 1979.782886][   T73]      netlink_unicast+0x449/0x710
[ 1979.782886][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1979.782886][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1979.782886][   T73]      ___sys_sendmsg+0xee/0x170
[ 1979.782886][   T73]      __sys_sendmsg+0xcd/0x170
[ 1979.782886][   T73]      do_syscall_64+0xc6/0x1e0
[ 1979.782886][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1979.782886][   T73] 
[ 1979.784588][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1979.784866][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1979.784866][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1979.784866][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1979.784866][   T73]      fib6_nh_init+0xa22/0x1580
[ 1979.784866][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1979.784866][   T73]      ip6_route_add+0x1c/0x140
[ 1979.784866][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1979.784866][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1979.784866][   T73]      netlink_rcv_skb+0x130/0x360
[ 1979.784866][   T73]      netlink_unicast+0x449/0x710
[ 1979.784866][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1979.784866][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1979.784866][   T73]      ___sys_sendmsg+0xee/0x170
[ 1979.784866][   T73]      __sys_sendmsg+0xcd/0x170
[ 1979.784866][   T73]      do_syscall_64+0xc6/0x1e0
[ 1979.784866][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1979.784866][   T73] 
[ 1979.786954][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1979.786954][   T73]      dst_init+0x84/0x4a0
[ 1979.786954][   T73]      dst_alloc+0x97/0x150
[ 1979.786954][   T73]      ip6_dst_alloc+0x23/0x90
[ 1979.786954][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1979.786954][   T73]      ip6_pol_route+0x56f/0x840
[ 1979.786954][   T73]      fib6_rule_lookup+0x456/0x630
[ 1979.786954][   T73]      ip6_route_input+0x59c/0xa50
[ 1979.786954][   T73]      ipv6_rcv+0x397/0x810
[ 1979.786954][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1979.786954][   T73]      process_backlog+0x101/0x620
[ 1979.786954][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1979.786954][   T73]      net_rx_action+0x495/0xbe0
[ 1979.786954][   T73]      __do_softirq+0x1b5/0x7f6
[ 1979.786954][   T73] 
[ 1979.788778][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1979.788778][   T73]      netdev_get_by_index+0x5e/0x80
[ 1979.788778][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1979.788778][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1979.788778][   T73]      ip6_route_add+0x1c/0x140
[ 1979.788778][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1979.788778][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1979.788778][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1979.788778][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1979.788778][   T73]      netlink_rcv_skb+0x130/0x360
[ 1979.788778][   T73]      netlink_unicast+0x449/0x710
[ 1979.788778][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1979.788778][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1979.788778][   T73]      ___sys_sendmsg+0xee/0x170
[ 1979.788778][   T73]      __sys_sendmsg+0xcd/0x170
[ 1979.788778][   T73]      do_syscall_64+0xc6/0x1e0
[ 1979.788778][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1979.788778][   T73] 
[ 1979.791023][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1979.791023][   T73]      netdev_get_by_index+0x5e/0x80
[ 1979.791023][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1979.791023][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1979.791023][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1979.791023][   T73]      ipv6_add_addr+0x411/0x2000
[ 1979.791023][   T73]      inet6_addr_add+0x30e/0xa40
[ 1979.791023][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1979.791023][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1979.791023][   T73]      netlink_rcv_skb+0x130/0x360
[ 1979.791023][   T73]      netlink_unicast+0x449/0x710
[ 1979.791023][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1979.791023][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1979.791023][   T73]      ___sys_sendmsg+0xee/0x170
[ 1979.791023][   T73]      __sys_sendmsg+0xcd/0x170
[ 1979.791023][   T73]      do_syscall_64+0xc6/0x1e0
[ 1979.791023][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1979.791023][   T73] 
[ 1979.793277][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1979.793277][   T73]      netdev_get_by_index+0x5e/0x80
[ 1979.793277][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1979.793277][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1979.793277][   T73]      ip6_route_add+0x1c/0x140
[ 1979.793277][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1979.793277][   T73]      addrconf_add_dev+0xe2/0x170
[ 1979.793277][   T73]      inet6_addr_add+0x12f/0xa40
[ 1979.793277][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1979.793277][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1979.793277][   T73]      netlink_rcv_skb+0x130/0x360
[ 1979.793277][   T73]      netlink_unicast+0x449/0x710
[ 1979.793277][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1979.793277][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1979.793277][   T73]      ___sys_sendmsg+0xee/0x170
[ 1979.793277][   T73]      __sys_sendmsg+0xcd/0x170
[ 1979.793277][   T73]      do_syscall_64+0xc6/0x1e0
[ 1979.793277][   T73] 
[ 1979.795491][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1979.795491][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1979.795491][   T73]      ipv6_find_idev+0x102/0x170
[ 1979.795491][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1979.795491][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1979.795491][   T73]      netlink_rcv_skb+0x130/0x360
[ 1979.795491][   T73]      netlink_unicast+0x449/0x710
[ 1979.795491][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1979.795491][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1979.795491][   T73]      ___sys_sendmsg+0xee/0x170
[ 1979.795491][   T73]      __sys_sendmsg+0xcd/0x170
[ 1979.795491][   T73]      do_syscall_64+0xc6/0x1e0
[ 1979.795491][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1979.795491][   T73] 
[ 1979.797225][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1979.797225][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1979.797225][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1979.797225][   T73]      ipv6_find_idev+0x102/0x170
[ 1979.797225][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1979.797225][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1979.797225][   T73]      netlink_rcv_skb+0x130/0x360
[ 1979.797225][   T73]      netlink_unicast+0x449/0x710
[ 1979.797225][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1979.797225][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1979.797225][   T73]      ___sys_sendmsg+0xee/0x170
[ 1979.797225][   T73]      __sys_sendmsg+0xcd/0x170
[ 1979.797225][   T73]      do_syscall_64+0xc6/0x1e0
[ 1979.797225][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1979.797225][   T73] 
[ 1979.799162][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1979.799434][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1979.799434][   T73]      netdev_get_by_index+0x5e/0x80
[ 1979.799434][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1979.799434][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1979.799434][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1979.799434][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1979.799434][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1979.799434][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1979.799434][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1979.799434][   T73]      addrconf_dad_begin+0x310/0x670
[ 1979.799434][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1979.799434][   T73]      process_one_work+0x84d/0x18a0
[ 1979.799434][   T73]      worker_thread+0x587/0xd30
[ 1979.799434][   T73]      kthread+0x28a/0x350
[ 1979.799434][   T73]      ret_from_fork+0x31/0x70
[ 1979.799434][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1979.799434][   T73] 
[ 1979.801614][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1979.801614][   T73]      netdev_get_by_index+0x5e/0x80
[ 1979.801614][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1979.801614][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1979.801614][   T73]      ip6_route_add+0x1c/0x140
[ 1979.801614][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1979.801614][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1979.801614][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1979.801614][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1979.801614][   T73]      netlink_rcv_skb+0x130/0x360
[ 1979.801614][   T73]      netlink_unicast+0x449/0x710
[ 1979.801614][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1979.801614][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1979.801614][   T73]      ___sys_sendmsg+0xee/0x170
[ 1979.801614][   T73]      __sys_sendmsg+0xcd/0x170
[ 1979.801614][   T73]      do_syscall_64+0xc6/0x1e0
[ 1979.801614][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1979.801614][   T73] 
[ 1979.803857][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1979.803857][   T73]      netdev_get_by_index+0x5e/0x80
[ 1979.803857][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1979.803857][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1979.803857][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1979.803857][   T73]      ipv6_add_addr+0x411/0x2000
[ 1979.803857][   T73]      inet6_addr_add+0x30e/0xa40
[ 1979.803857][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1979.803857][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1979.803857][   T73]      netlink_rcv_skb+0x130/0x360
[ 1979.803857][   T73]      netlink_unicast+0x449/0x710
[ 1979.803857][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1979.803857][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1979.803857][   T73]      ___sys_sendmsg+0xee/0x170
[ 1979.803857][   T73]      __sys_sendmsg+0xcd/0x170
[ 1979.803857][   T73]      do_syscall_64+0xc6/0x1e0
[ 1979.803857][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1979.803857][   T73] 
[ 1979.806120][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1979.806120][   T73]      netdev_get_by_index+0x5e/0x80
[ 1979.806120][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1979.806120][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1979.806120][   T73]      ip6_route_add+0x1c/0x140
[ 1979.806120][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1979.806120][   T73]      addrconf_add_dev+0xe2/0x170
[ 1979.806120][   T73]      inet6_addr_add+0x12f/0xa40
[ 1979.806120][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1979.806120][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1979.806120][   T73]      netlink_rcv_skb+0x130/0x360
[ 1979.806120][   T73]      netlink_unicast+0x449/0x710
[ 1979.806120][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1979.806120][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1979.806120][   T73]      ___sys_sendmsg+0xee/0x170
[ 1979.806120][   T73]      __sys_sendmsg+0xcd/0x170
[ 1979.806120][   T73]      do_syscall_64+0xc6/0x1e0
[ 1979.806120][   T73] 
[ 1979.808332][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1979.808332][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1979.808332][   T73]      ipv6_find_idev+0x102/0x170
[ 1979.808332][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1979.808332][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1979.808332][   T73]      netlink_rcv_skb+0x130/0x360
[ 1979.808332][   T73]      netlink_unicast+0x449/0x710
[ 1979.808332][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1979.808332][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1979.808332][   T73]      ___sys_sendmsg+0xee/0x170
[ 1979.808332][   T73]      __sys_sendmsg+0xcd/0x170
[ 1979.808332][   T73]      do_syscall_64+0xc6/0x1e0
[ 1979.808332][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1979.808332][   T73] 
[ 1979.810063][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1979.810063][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1979.810063][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1979.810063][   T73]      ipv6_find_idev+0x102/0x170
[ 1979.810063][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1979.810063][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1979.810063][   T73]      netlink_rcv_skb+0x130/0x360
[ 1979.810063][   T73]      netlink_unicast+0x449/0x710
[ 1979.810063][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1979.810063][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1979.810063][   T73]      ___sys_sendmsg+0xee/0x170
[ 1979.810063][   T73]      __sys_sendmsg+0xcd/0x170
[ 1979.810063][   T73]      do_syscall_64+0xc6/0x1e0
[ 1979.810063][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1979.810063][   T73] 
[ 1989.919808][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 1989.920298][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1989.920298][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1989.920298][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1989.920298][   T73]      fib6_nh_init+0xa22/0x1580
[ 1989.920298][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1989.920298][   T73]      ip6_route_add+0x1c/0x140
[ 1989.920298][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1989.920298][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1989.920298][   T73]      netlink_rcv_skb+0x130/0x360
[ 1989.920298][   T73]      netlink_unicast+0x449/0x710
[ 1989.920298][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1989.920298][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1989.920298][   T73]      ___sys_sendmsg+0xee/0x170
[ 1989.920298][   T73]      __sys_sendmsg+0xcd/0x170
[ 1989.920298][   T73]      do_syscall_64+0xc6/0x1e0
[ 1989.920298][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1989.920298][   T73] 
[ 1989.922215][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 1989.922215][   T73]      dst_init+0x84/0x4a0
[ 1989.922215][   T73]      dst_alloc+0x97/0x150
[ 1989.922215][   T73]      ip6_dst_alloc+0x23/0x90
[ 1989.922215][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1989.922215][   T73]      ip6_pol_route+0x56f/0x840
[ 1989.922215][   T73]      fib6_rule_lookup+0x456/0x630
[ 1989.922215][   T73]      ip6_route_input+0x59c/0xa50
[ 1989.922215][   T73]      ipv6_rcv+0x397/0x810
[ 1989.922215][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1989.922215][   T73]      process_backlog+0x101/0x620
[ 1989.922215][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1989.922215][   T73]      net_rx_action+0x495/0xbe0
[ 1989.922215][   T73]      __do_softirq+0x1b5/0x7f6
[ 1989.922215][   T73] 
[ 1989.923866][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1989.923866][   T73]      netdev_get_by_index+0x5e/0x80
[ 1989.923866][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1989.923866][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1989.923866][   T73]      ip6_route_add+0x1c/0x140
[ 1989.923866][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1989.923866][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1989.923866][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1989.923866][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1989.923866][   T73]      netlink_rcv_skb+0x130/0x360
[ 1989.923866][   T73]      netlink_unicast+0x449/0x710
[ 1989.923866][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1989.923866][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1989.923866][   T73]      ___sys_sendmsg+0xee/0x170
[ 1989.923866][   T73]      __sys_sendmsg+0xcd/0x170
[ 1989.923866][   T73]      do_syscall_64+0xc6/0x1e0
[ 1989.923866][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1989.923866][   T73] 
[ 1989.926029][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1989.926029][   T73]      netdev_get_by_index+0x5e/0x80
[ 1989.926029][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1989.926029][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1989.926029][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1989.926029][   T73]      ipv6_add_addr+0x411/0x2000
[ 1989.926029][   T73]      inet6_addr_add+0x30e/0xa40
[ 1989.926029][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1989.926029][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1989.926029][   T73]      netlink_rcv_skb+0x130/0x360
[ 1989.926029][   T73]      netlink_unicast+0x449/0x710
[ 1989.926029][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1989.926029][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1989.926029][   T73]      ___sys_sendmsg+0xee/0x170
[ 1989.926029][   T73]      __sys_sendmsg+0xcd/0x170
[ 1989.926029][   T73]      do_syscall_64+0xc6/0x1e0
[ 1989.926029][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1989.926029][   T73] 
[ 1989.928037][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1989.928037][   T73]      netdev_get_by_index+0x5e/0x80
[ 1989.928037][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1989.928037][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1989.928037][   T73]      ip6_route_add+0x1c/0x140
[ 1989.928037][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1989.928037][   T73]      addrconf_add_dev+0xe2/0x170
[ 1989.928037][   T73]      inet6_addr_add+0x12f/0xa40
[ 1989.928037][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1989.928037][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1989.928037][   T73]      netlink_rcv_skb+0x130/0x360
[ 1989.928037][   T73]      netlink_unicast+0x449/0x710
[ 1989.928037][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1989.928037][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1989.928037][   T73]      ___sys_sendmsg+0xee/0x170
[ 1989.928037][   T73]      __sys_sendmsg+0xcd/0x170
[ 1989.928037][   T73]      do_syscall_64+0xc6/0x1e0
[ 1989.928037][   T73] 
[ 1989.930015][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1989.930015][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1989.930015][   T73]      ipv6_find_idev+0x102/0x170
[ 1989.930015][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1989.930015][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1989.930015][   T73]      netlink_rcv_skb+0x130/0x360
[ 1989.930015][   T73]      netlink_unicast+0x449/0x710
[ 1989.930015][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1989.930015][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1989.930015][   T73]      ___sys_sendmsg+0xee/0x170
[ 1989.930015][   T73]      __sys_sendmsg+0xcd/0x170
[ 1989.930015][   T73]      do_syscall_64+0xc6/0x1e0
[ 1989.930015][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1989.930015][   T73] 
[ 1989.931572][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 1989.931572][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1989.931572][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1989.931572][   T73]      ipv6_find_idev+0x102/0x170
[ 1989.931572][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1989.931572][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1989.931572][   T73]      netlink_rcv_skb+0x130/0x360
[ 1989.931572][   T73]      netlink_unicast+0x449/0x710
[ 1989.931572][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1989.931572][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1989.931572][   T73]      ___sys_sendmsg+0xee/0x170
[ 1989.931572][   T73]      __sys_sendmsg+0xcd/0x170
[ 1989.931572][   T73]      do_syscall_64+0xc6/0x1e0
[ 1989.931572][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1989.931572][   T73] 
[ 1989.933272][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 1989.933554][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1989.933554][   T73]      netdev_get_by_index+0x5e/0x80
[ 1989.933554][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1989.933554][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1989.933554][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1989.933554][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1989.933554][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1989.933554][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1989.933554][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1989.933554][   T73]      addrconf_dad_begin+0x310/0x670
[ 1989.933554][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1989.933554][   T73]      process_one_work+0x84d/0x18a0
[ 1989.933554][   T73]      worker_thread+0x587/0xd30
[ 1989.933554][   T73]      kthread+0x28a/0x350
[ 1989.933554][   T73]      ret_from_fork+0x31/0x70
[ 1989.933554][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1989.933554][   T73] 
[ 1989.935492][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1989.935492][   T73]      netdev_get_by_index+0x5e/0x80
[ 1989.935492][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1989.935492][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1989.935492][   T73]      ip6_route_add+0x1c/0x140
[ 1989.935492][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1989.935492][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1989.935492][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1989.935492][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1989.935492][   T73]      netlink_rcv_skb+0x130/0x360
[ 1989.935492][   T73]      netlink_unicast+0x449/0x710
[ 1989.935492][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1989.935492][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1989.935492][   T73]      ___sys_sendmsg+0xee/0x170
[ 1989.935492][   T73]      __sys_sendmsg+0xcd/0x170
[ 1989.935492][   T73]      do_syscall_64+0xc6/0x1e0
[ 1989.935492][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1989.935492][   T73] 
[ 1989.937506][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1989.937506][   T73]      netdev_get_by_index+0x5e/0x80
[ 1989.937506][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1989.937506][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1989.937506][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1989.937506][   T73]      ipv6_add_addr+0x411/0x2000
[ 1989.937506][   T73]      inet6_addr_add+0x30e/0xa40
[ 1989.937506][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1989.937506][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1989.937506][   T73]      netlink_rcv_skb+0x130/0x360
[ 1989.937506][   T73]      netlink_unicast+0x449/0x710
[ 1989.937506][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1989.937506][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1989.937506][   T73]      ___sys_sendmsg+0xee/0x170
[ 1989.937506][   T73]      __sys_sendmsg+0xcd/0x170
[ 1989.937506][   T73]      do_syscall_64+0xc6/0x1e0
[ 1989.937506][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1989.937506][   T73] 
[ 1989.939507][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1989.939507][   T73]      netdev_get_by_index+0x5e/0x80
[ 1989.939507][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1989.939507][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1989.939507][   T73]      ip6_route_add+0x1c/0x140
[ 1989.939507][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1989.939507][   T73]      addrconf_add_dev+0xe2/0x170
[ 1989.939507][   T73]      inet6_addr_add+0x12f/0xa40
[ 1989.939507][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1989.939507][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1989.939507][   T73]      netlink_rcv_skb+0x130/0x360
[ 1989.939507][   T73]      netlink_unicast+0x449/0x710
[ 1989.939507][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1989.939507][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1989.939507][   T73]      ___sys_sendmsg+0xee/0x170
[ 1989.939507][   T73]      __sys_sendmsg+0xcd/0x170
[ 1989.939507][   T73]      do_syscall_64+0xc6/0x1e0
[ 1989.939507][   T73] 
[ 1989.941480][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1989.941480][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1989.941480][   T73]      ipv6_find_idev+0x102/0x170
[ 1989.941480][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1989.941480][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1989.941480][   T73]      netlink_rcv_skb+0x130/0x360
[ 1989.941480][   T73]      netlink_unicast+0x449/0x710
[ 1989.941480][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1989.941480][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1989.941480][   T73]      ___sys_sendmsg+0xee/0x170
[ 1989.941480][   T73]      __sys_sendmsg+0xcd/0x170
[ 1989.941480][   T73]      do_syscall_64+0xc6/0x1e0
[ 1989.941480][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1989.941480][   T73] 
[ 1989.943027][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 1989.943027][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1989.943027][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1989.943027][   T73]      ipv6_find_idev+0x102/0x170
[ 1989.943027][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1989.943027][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1989.943027][   T73]      netlink_rcv_skb+0x130/0x360
[ 1989.943027][   T73]      netlink_unicast+0x449/0x710
[ 1989.943027][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1989.943027][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1989.943027][   T73]      ___sys_sendmsg+0xee/0x170
[ 1989.943027][   T73]      __sys_sendmsg+0xcd/0x170
[ 1989.943027][   T73]      do_syscall_64+0xc6/0x1e0
[ 1989.943027][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1989.943027][   T73] 
[ 1989.944730][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 1989.945002][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1989.945002][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 1989.945002][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 1989.945002][   T73]      fib6_nh_init+0xa22/0x1580
[ 1989.945002][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1989.945002][   T73]      ip6_route_add+0x1c/0x140
[ 1989.945002][   T73]      inet6_rtm_newroute+0x104/0x110
[ 1989.945002][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1989.945002][   T73]      netlink_rcv_skb+0x130/0x360
[ 1989.945002][   T73]      netlink_unicast+0x449/0x710
[ 1989.945002][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1989.945002][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1989.945002][   T73]      ___sys_sendmsg+0xee/0x170
[ 1989.945002][   T73]      __sys_sendmsg+0xcd/0x170
[ 1989.945002][   T73]      do_syscall_64+0xc6/0x1e0
[ 1989.945002][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1989.945002][   T73] 
[ 1989.947099][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 1989.947099][   T73]      dst_init+0x84/0x4a0
[ 1989.947099][   T73]      dst_alloc+0x97/0x150
[ 1989.947099][   T73]      ip6_dst_alloc+0x23/0x90
[ 1989.947099][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 1989.947099][   T73]      ip6_pol_route+0x56f/0x840
[ 1989.947099][   T73]      fib6_rule_lookup+0x456/0x630
[ 1989.947099][   T73]      ip6_route_input+0x59c/0xa50
[ 1989.947099][   T73]      ipv6_rcv+0x397/0x810
[ 1989.947099][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 1989.947099][   T73]      process_backlog+0x101/0x620
[ 1989.947099][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 1989.947099][   T73]      net_rx_action+0x495/0xbe0
[ 1989.947099][   T73]      __do_softirq+0x1b5/0x7f6
[ 1989.947099][   T73] 
[ 1989.948981][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1989.948981][   T73]      netdev_get_by_index+0x5e/0x80
[ 1989.948981][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1989.948981][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1989.948981][   T73]      ip6_route_add+0x1c/0x140
[ 1989.948981][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1989.948981][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1989.948981][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1989.948981][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1989.948981][   T73]      netlink_rcv_skb+0x130/0x360
[ 1989.948981][   T73]      netlink_unicast+0x449/0x710
[ 1989.948981][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1989.948981][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1989.948981][   T73]      ___sys_sendmsg+0xee/0x170
[ 1989.948981][   T73]      __sys_sendmsg+0xcd/0x170
[ 1989.948981][   T73]      do_syscall_64+0xc6/0x1e0
[ 1989.948981][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1989.948981][   T73] 
[ 1989.951170][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1989.951170][   T73]      netdev_get_by_index+0x5e/0x80
[ 1989.951170][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1989.951170][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1989.951170][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1989.951170][   T73]      ipv6_add_addr+0x411/0x2000
[ 1989.951170][   T73]      inet6_addr_add+0x30e/0xa40
[ 1989.951170][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1989.951170][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1989.951170][   T73]      netlink_rcv_skb+0x130/0x360
[ 1989.951170][   T73]      netlink_unicast+0x449/0x710
[ 1989.951170][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1989.951170][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1989.951170][   T73]      ___sys_sendmsg+0xee/0x170
[ 1989.951170][   T73]      __sys_sendmsg+0xcd/0x170
[ 1989.951170][   T73]      do_syscall_64+0xc6/0x1e0
[ 1989.951170][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1989.951170][   T73] 
[ 1989.953422][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1989.953422][   T73]      netdev_get_by_index+0x5e/0x80
[ 1989.953422][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1989.953422][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1989.953422][   T73]      ip6_route_add+0x1c/0x140
[ 1989.953422][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1989.953422][   T73]      addrconf_add_dev+0xe2/0x170
[ 1989.953422][   T73]      inet6_addr_add+0x12f/0xa40
[ 1989.953422][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1989.953422][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1989.953422][   T73]      netlink_rcv_skb+0x130/0x360
[ 1989.953422][   T73]      netlink_unicast+0x449/0x710
[ 1989.953422][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1989.953422][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1989.953422][   T73]      ___sys_sendmsg+0xee/0x170
[ 1989.953422][   T73]      __sys_sendmsg+0xcd/0x170
[ 1989.953422][   T73]      do_syscall_64+0xc6/0x1e0
[ 1989.953422][   T73] 
[ 1989.955649][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1989.955649][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1989.955649][   T73]      ipv6_find_idev+0x102/0x170
[ 1989.955649][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1989.955649][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1989.955649][   T73]      netlink_rcv_skb+0x130/0x360
[ 1989.955649][   T73]      netlink_unicast+0x449/0x710
[ 1989.955649][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1989.955649][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1989.955649][   T73]      ___sys_sendmsg+0xee/0x170
[ 1989.955649][   T73]      __sys_sendmsg+0xcd/0x170
[ 1989.955649][   T73]      do_syscall_64+0xc6/0x1e0
[ 1989.955649][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1989.955649][   T73] 
[ 1989.957440][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 1989.957440][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1989.957440][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1989.957440][   T73]      ipv6_find_idev+0x102/0x170
[ 1989.957440][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1989.957440][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1989.957440][   T73]      netlink_rcv_skb+0x130/0x360
[ 1989.957440][   T73]      netlink_unicast+0x449/0x710
[ 1989.957440][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1989.957440][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1989.957440][   T73]      ___sys_sendmsg+0xee/0x170
[ 1989.957440][   T73]      __sys_sendmsg+0xcd/0x170
[ 1989.957440][   T73]      do_syscall_64+0xc6/0x1e0
[ 1989.957440][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1989.957440][   T73] 
[ 1989.959313][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 1989.959652][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1989.959652][   T73]      netdev_get_by_index+0x5e/0x80
[ 1989.959652][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1989.959652][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1989.959652][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 1989.959652][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 1989.959652][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 1989.959652][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 1989.959652][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 1989.959652][   T73]      addrconf_dad_begin+0x310/0x670
[ 1989.959652][   T73]      addrconf_dad_work+0x10b/0xab0
[ 1989.959652][   T73]      process_one_work+0x84d/0x18a0
[ 1989.959652][   T73]      worker_thread+0x587/0xd30
[ 1989.959652][   T73]      kthread+0x28a/0x350
[ 1989.959652][   T73]      ret_from_fork+0x31/0x70
[ 1989.959652][   T73]      ret_from_fork_asm+0x1a/0x30
[ 1989.959652][   T73] 
[ 1989.961752][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1989.961752][   T73]      netdev_get_by_index+0x5e/0x80
[ 1989.961752][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1989.961752][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1989.961752][   T73]      ip6_route_add+0x1c/0x140
[ 1989.961752][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 1989.961752][   T73]      inet6_addr_add+0x4f8/0xa40
[ 1989.961752][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1989.961752][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1989.961752][   T73]      netlink_rcv_skb+0x130/0x360
[ 1989.961752][   T73]      netlink_unicast+0x449/0x710
[ 1989.961752][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1989.961752][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1989.961752][   T73]      ___sys_sendmsg+0xee/0x170
[ 1989.961752][   T73]      __sys_sendmsg+0xcd/0x170
[ 1989.961752][   T73]      do_syscall_64+0xc6/0x1e0
[ 1989.961752][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1989.961752][   T73] 
[ 1989.964000][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1989.964000][   T73]      netdev_get_by_index+0x5e/0x80
[ 1989.964000][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1989.964000][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1989.964000][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 1989.964000][   T73]      ipv6_add_addr+0x411/0x2000
[ 1989.964000][   T73]      inet6_addr_add+0x30e/0xa40
[ 1989.964000][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1989.964000][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1989.964000][   T73]      netlink_rcv_skb+0x130/0x360
[ 1989.964000][   T73]      netlink_unicast+0x449/0x710
[ 1989.964000][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1989.964000][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1989.964000][   T73]      ___sys_sendmsg+0xee/0x170
[ 1989.964000][   T73]      __sys_sendmsg+0xcd/0x170
[ 1989.964000][   T73]      do_syscall_64+0xc6/0x1e0
[ 1989.964000][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1989.964000][   T73] 
[ 1989.966261][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1989.966261][   T73]      netdev_get_by_index+0x5e/0x80
[ 1989.966261][   T73]      fib6_nh_init+0x3d8/0x1580
[ 1989.966261][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 1989.966261][   T73]      ip6_route_add+0x1c/0x140
[ 1989.966261][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 1989.966261][   T73]      addrconf_add_dev+0xe2/0x170
[ 1989.966261][   T73]      inet6_addr_add+0x12f/0xa40
[ 1989.966261][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 1989.966261][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1989.966261][   T73]      netlink_rcv_skb+0x130/0x360
[ 1989.966261][   T73]      netlink_unicast+0x449/0x710
[ 1989.966261][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1989.966261][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1989.966261][   T73]      ___sys_sendmsg+0xee/0x170
[ 1989.966261][   T73]      __sys_sendmsg+0xcd/0x170
[ 1989.966261][   T73]      do_syscall_64+0xc6/0x1e0
[ 1989.966261][   T73] 
[ 1989.968538][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1989.968538][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 1989.968538][   T73]      ipv6_find_idev+0x102/0x170
[ 1989.968538][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1989.968538][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1989.968538][   T73]      netlink_rcv_skb+0x130/0x360
[ 1989.968538][   T73]      netlink_unicast+0x449/0x710
[ 1989.968538][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1989.968538][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1989.968538][   T73]      ___sys_sendmsg+0xee/0x170
[ 1989.968538][   T73]      __sys_sendmsg+0xcd/0x170
[ 1989.968538][   T73]      do_syscall_64+0xc6/0x1e0
[ 1989.968538][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1989.968538][   T73] 
[ 1989.970263][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 1989.970263][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 1989.970263][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 1989.970263][   T73]      ipv6_find_idev+0x102/0x170
[ 1989.970263][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 1989.970263][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 1989.970263][   T73]      netlink_rcv_skb+0x130/0x360
[ 1989.970263][   T73]      netlink_unicast+0x449/0x710
[ 1989.970263][   T73]      netlink_sendmsg+0x723/0xbe0
[ 1989.970263][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 1989.970263][   T73]      ___sys_sendmsg+0xee/0x170
[ 1989.970263][   T73]      __sys_sendmsg+0xcd/0x170
[ 1989.970263][   T73]      do_syscall_64+0xc6/0x1e0
[ 1989.970263][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 1989.970263][   T73] 
[ 2000.207833][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2000.208325][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2000.208325][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2000.208325][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2000.208325][   T73]      fib6_nh_init+0xa22/0x1580
[ 2000.208325][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2000.208325][   T73]      ip6_route_add+0x1c/0x140
[ 2000.208325][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2000.208325][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2000.208325][   T73]      netlink_rcv_skb+0x130/0x360
[ 2000.208325][   T73]      netlink_unicast+0x449/0x710
[ 2000.208325][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2000.208325][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2000.208325][   T73]      ___sys_sendmsg+0xee/0x170
[ 2000.208325][   T73]      __sys_sendmsg+0xcd/0x170
[ 2000.208325][   T73]      do_syscall_64+0xc6/0x1e0
[ 2000.208325][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2000.208325][   T73] 
[ 2000.210245][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2000.210245][   T73]      dst_init+0x84/0x4a0
[ 2000.210245][   T73]      dst_alloc+0x97/0x150
[ 2000.210245][   T73]      ip6_dst_alloc+0x23/0x90
[ 2000.210245][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2000.210245][   T73]      ip6_pol_route+0x56f/0x840
[ 2000.210245][   T73]      fib6_rule_lookup+0x456/0x630
[ 2000.210245][   T73]      ip6_route_input+0x59c/0xa50
[ 2000.210245][   T73]      ipv6_rcv+0x397/0x810
[ 2000.210245][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2000.210245][   T73]      process_backlog+0x101/0x620
[ 2000.210245][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2000.210245][   T73]      net_rx_action+0x495/0xbe0
[ 2000.210245][   T73]      __do_softirq+0x1b5/0x7f6
[ 2000.210245][   T73] 
[ 2000.211905][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2000.211905][   T73]      netdev_get_by_index+0x5e/0x80
[ 2000.211905][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2000.211905][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2000.211905][   T73]      ip6_route_add+0x1c/0x140
[ 2000.211905][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2000.211905][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2000.211905][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2000.211905][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2000.211905][   T73]      netlink_rcv_skb+0x130/0x360
[ 2000.211905][   T73]      netlink_unicast+0x449/0x710
[ 2000.211905][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2000.211905][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2000.211905][   T73]      ___sys_sendmsg+0xee/0x170
[ 2000.211905][   T73]      __sys_sendmsg+0xcd/0x170
[ 2000.211905][   T73]      do_syscall_64+0xc6/0x1e0
[ 2000.211905][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2000.211905][   T73] 
[ 2000.213927][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2000.213927][   T73]      netdev_get_by_index+0x5e/0x80
[ 2000.213927][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2000.213927][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2000.213927][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2000.213927][   T73]      ipv6_add_addr+0x411/0x2000
[ 2000.213927][   T73]      inet6_addr_add+0x30e/0xa40
[ 2000.213927][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2000.213927][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2000.213927][   T73]      netlink_rcv_skb+0x130/0x360
[ 2000.213927][   T73]      netlink_unicast+0x449/0x710
[ 2000.213927][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2000.213927][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2000.213927][   T73]      ___sys_sendmsg+0xee/0x170
[ 2000.213927][   T73]      __sys_sendmsg+0xcd/0x170
[ 2000.213927][   T73]      do_syscall_64+0xc6/0x1e0
[ 2000.213927][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2000.213927][   T73] 
[ 2000.215960][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2000.215960][   T73]      netdev_get_by_index+0x5e/0x80
[ 2000.215960][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2000.215960][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2000.215960][   T73]      ip6_route_add+0x1c/0x140
[ 2000.215960][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2000.215960][   T73]      addrconf_add_dev+0xe2/0x170
[ 2000.215960][   T73]      inet6_addr_add+0x12f/0xa40
[ 2000.215960][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2000.215960][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2000.215960][   T73]      netlink_rcv_skb+0x130/0x360
[ 2000.215960][   T73]      netlink_unicast+0x449/0x710
[ 2000.215960][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2000.215960][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2000.215960][   T73]      ___sys_sendmsg+0xee/0x170
[ 2000.215960][   T73]      __sys_sendmsg+0xcd/0x170
[ 2000.215960][   T73]      do_syscall_64+0xc6/0x1e0
[ 2000.215960][   T73] 
[ 2000.217936][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2000.217936][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2000.217936][   T73]      ipv6_find_idev+0x102/0x170
[ 2000.217936][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2000.217936][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2000.217936][   T73]      netlink_rcv_skb+0x130/0x360
[ 2000.217936][   T73]      netlink_unicast+0x449/0x710
[ 2000.217936][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2000.217936][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2000.217936][   T73]      ___sys_sendmsg+0xee/0x170
[ 2000.217936][   T73]      __sys_sendmsg+0xcd/0x170
[ 2000.217936][   T73]      do_syscall_64+0xc6/0x1e0
[ 2000.217936][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2000.217936][   T73] 
[ 2000.219488][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2000.219488][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2000.219488][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2000.219488][   T73]      ipv6_find_idev+0x102/0x170
[ 2000.219488][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2000.219488][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2000.219488][   T73]      netlink_rcv_skb+0x130/0x360
[ 2000.219488][   T73]      netlink_unicast+0x449/0x710
[ 2000.219488][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2000.219488][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2000.219488][   T73]      ___sys_sendmsg+0xee/0x170
[ 2000.219488][   T73]      __sys_sendmsg+0xcd/0x170
[ 2000.219488][   T73]      do_syscall_64+0xc6/0x1e0
[ 2000.219488][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2000.219488][   T73] 
[ 2000.221195][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2000.221479][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2000.221479][   T73]      netdev_get_by_index+0x5e/0x80
[ 2000.221479][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2000.221479][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2000.221479][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2000.221479][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2000.221479][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2000.221479][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2000.221479][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2000.221479][   T73]      addrconf_dad_begin+0x310/0x670
[ 2000.221479][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2000.221479][   T73]      process_one_work+0x84d/0x18a0
[ 2000.221479][   T73]      worker_thread+0x587/0xd30
[ 2000.221479][   T73]      kthread+0x28a/0x350
[ 2000.221479][   T73]      ret_from_fork+0x31/0x70
[ 2000.221479][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2000.221479][   T73] 
[ 2000.223402][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2000.223402][   T73]      netdev_get_by_index+0x5e/0x80
[ 2000.223402][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2000.223402][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2000.223402][   T73]      ip6_route_add+0x1c/0x140
[ 2000.223402][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2000.223402][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2000.223402][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2000.223402][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2000.223402][   T73]      netlink_rcv_skb+0x130/0x360
[ 2000.223402][   T73]      netlink_unicast+0x449/0x710
[ 2000.223402][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2000.223402][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2000.223402][   T73]      ___sys_sendmsg+0xee/0x170
[ 2000.223402][   T73]      __sys_sendmsg+0xcd/0x170
[ 2000.223402][   T73]      do_syscall_64+0xc6/0x1e0
[ 2000.223402][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2000.223402][   T73] 
[ 2000.225438][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2000.225438][   T73]      netdev_get_by_index+0x5e/0x80
[ 2000.225438][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2000.225438][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2000.225438][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2000.225438][   T73]      ipv6_add_addr+0x411/0x2000
[ 2000.225438][   T73]      inet6_addr_add+0x30e/0xa40
[ 2000.225438][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2000.225438][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2000.225438][   T73]      netlink_rcv_skb+0x130/0x360
[ 2000.225438][   T73]      netlink_unicast+0x449/0x710
[ 2000.225438][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2000.225438][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2000.225438][   T73]      ___sys_sendmsg+0xee/0x170
[ 2000.225438][   T73]      __sys_sendmsg+0xcd/0x170
[ 2000.225438][   T73]      do_syscall_64+0xc6/0x1e0
[ 2000.225438][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2000.225438][   T73] 
[ 2000.227445][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2000.227445][   T73]      netdev_get_by_index+0x5e/0x80
[ 2000.227445][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2000.227445][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2000.227445][   T73]      ip6_route_add+0x1c/0x140
[ 2000.227445][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2000.227445][   T73]      addrconf_add_dev+0xe2/0x170
[ 2000.227445][   T73]      inet6_addr_add+0x12f/0xa40
[ 2000.227445][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2000.227445][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2000.227445][   T73]      netlink_rcv_skb+0x130/0x360
[ 2000.227445][   T73]      netlink_unicast+0x449/0x710
[ 2000.227445][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2000.227445][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2000.227445][   T73]      ___sys_sendmsg+0xee/0x170
[ 2000.227445][   T73]      __sys_sendmsg+0xcd/0x170
[ 2000.227445][   T73]      do_syscall_64+0xc6/0x1e0
[ 2000.227445][   T73] 
[ 2000.229417][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2000.229417][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2000.229417][   T73]      ipv6_find_idev+0x102/0x170
[ 2000.229417][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2000.229417][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2000.229417][   T73]      netlink_rcv_skb+0x130/0x360
[ 2000.229417][   T73]      netlink_unicast+0x449/0x710
[ 2000.229417][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2000.229417][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2000.229417][   T73]      ___sys_sendmsg+0xee/0x170
[ 2000.229417][   T73]      __sys_sendmsg+0xcd/0x170
[ 2000.229417][   T73]      do_syscall_64+0xc6/0x1e0
[ 2000.229417][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2000.229417][   T73] 
[ 2000.230965][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2000.230965][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2000.230965][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2000.230965][   T73]      ipv6_find_idev+0x102/0x170
[ 2000.230965][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2000.230965][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2000.230965][   T73]      netlink_rcv_skb+0x130/0x360
[ 2000.230965][   T73]      netlink_unicast+0x449/0x710
[ 2000.230965][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2000.230965][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2000.230965][   T73]      ___sys_sendmsg+0xee/0x170
[ 2000.230965][   T73]      __sys_sendmsg+0xcd/0x170
[ 2000.230965][   T73]      do_syscall_64+0xc6/0x1e0
[ 2000.230965][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2000.230965][   T73] 
[ 2000.232670][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2000.232942][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2000.232942][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2000.232942][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2000.232942][   T73]      fib6_nh_init+0xa22/0x1580
[ 2000.232942][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2000.232942][   T73]      ip6_route_add+0x1c/0x140
[ 2000.232942][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2000.232942][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2000.232942][   T73]      netlink_rcv_skb+0x130/0x360
[ 2000.232942][   T73]      netlink_unicast+0x449/0x710
[ 2000.232942][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2000.232942][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2000.232942][   T73]      ___sys_sendmsg+0xee/0x170
[ 2000.232942][   T73]      __sys_sendmsg+0xcd/0x170
[ 2000.232942][   T73]      do_syscall_64+0xc6/0x1e0
[ 2000.232942][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2000.232942][   T73] 
[ 2000.235021][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2000.235021][   T73]      dst_init+0x84/0x4a0
[ 2000.235021][   T73]      dst_alloc+0x97/0x150
[ 2000.235021][   T73]      ip6_dst_alloc+0x23/0x90
[ 2000.235021][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2000.235021][   T73]      ip6_pol_route+0x56f/0x840
[ 2000.235021][   T73]      fib6_rule_lookup+0x456/0x630
[ 2000.235021][   T73]      ip6_route_input+0x59c/0xa50
[ 2000.235021][   T73]      ipv6_rcv+0x397/0x810
[ 2000.235021][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2000.235021][   T73]      process_backlog+0x101/0x620
[ 2000.235021][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2000.235021][   T73]      net_rx_action+0x495/0xbe0
[ 2000.235021][   T73]      __do_softirq+0x1b5/0x7f6
[ 2000.235021][   T73] 
[ 2000.236852][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2000.236852][   T73]      netdev_get_by_index+0x5e/0x80
[ 2000.236852][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2000.236852][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2000.236852][   T73]      ip6_route_add+0x1c/0x140
[ 2000.236852][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2000.236852][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2000.236852][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2000.236852][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2000.236852][   T73]      netlink_rcv_skb+0x130/0x360
[ 2000.236852][   T73]      netlink_unicast+0x449/0x710
[ 2000.236852][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2000.236852][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2000.236852][   T73]      ___sys_sendmsg+0xee/0x170
[ 2000.236852][   T73]      __sys_sendmsg+0xcd/0x170
[ 2000.236852][   T73]      do_syscall_64+0xc6/0x1e0
[ 2000.236852][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2000.236852][   T73] 
[ 2000.239109][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2000.239109][   T73]      netdev_get_by_index+0x5e/0x80
[ 2000.239109][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2000.239109][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2000.239109][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2000.239109][   T73]      ipv6_add_addr+0x411/0x2000
[ 2000.239109][   T73]      inet6_addr_add+0x30e/0xa40
[ 2000.239109][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2000.239109][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2000.239109][   T73]      netlink_rcv_skb+0x130/0x360
[ 2000.239109][   T73]      netlink_unicast+0x449/0x710
[ 2000.239109][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2000.239109][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2000.239109][   T73]      ___sys_sendmsg+0xee/0x170
[ 2000.239109][   T73]      __sys_sendmsg+0xcd/0x170
[ 2000.239109][   T73]      do_syscall_64+0xc6/0x1e0
[ 2000.239109][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2000.239109][   T73] 
[ 2000.241356][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2000.241356][   T73]      netdev_get_by_index+0x5e/0x80
[ 2000.241356][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2000.241356][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2000.241356][   T73]      ip6_route_add+0x1c/0x140
[ 2000.241356][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2000.241356][   T73]      addrconf_add_dev+0xe2/0x170
[ 2000.241356][   T73]      inet6_addr_add+0x12f/0xa40
[ 2000.241356][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2000.241356][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2000.241356][   T73]      netlink_rcv_skb+0x130/0x360
[ 2000.241356][   T73]      netlink_unicast+0x449/0x710
[ 2000.241356][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2000.241356][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2000.241356][   T73]      ___sys_sendmsg+0xee/0x170
[ 2000.241356][   T73]      __sys_sendmsg+0xcd/0x170
[ 2000.241356][   T73]      do_syscall_64+0xc6/0x1e0
[ 2000.241356][   T73] 
[ 2000.243583][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2000.243583][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2000.243583][   T73]      ipv6_find_idev+0x102/0x170
[ 2000.243583][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2000.243583][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2000.243583][   T73]      netlink_rcv_skb+0x130/0x360
[ 2000.243583][   T73]      netlink_unicast+0x449/0x710
[ 2000.243583][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2000.243583][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2000.243583][   T73]      ___sys_sendmsg+0xee/0x170
[ 2000.243583][   T73]      __sys_sendmsg+0xcd/0x170
[ 2000.243583][   T73]      do_syscall_64+0xc6/0x1e0
[ 2000.243583][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2000.243583][   T73] 
[ 2000.245316][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2000.245316][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2000.245316][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2000.245316][   T73]      ipv6_find_idev+0x102/0x170
[ 2000.245316][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2000.245316][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2000.245316][   T73]      netlink_rcv_skb+0x130/0x360
[ 2000.245316][   T73]      netlink_unicast+0x449/0x710
[ 2000.245316][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2000.245316][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2000.245316][   T73]      ___sys_sendmsg+0xee/0x170
[ 2000.245316][   T73]      __sys_sendmsg+0xcd/0x170
[ 2000.245316][   T73]      do_syscall_64+0xc6/0x1e0
[ 2000.245316][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2000.245316][   T73] 
[ 2000.247276][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2000.247547][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2000.247547][   T73]      netdev_get_by_index+0x5e/0x80
[ 2000.247547][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2000.247547][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2000.247547][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2000.247547][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2000.247547][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2000.247547][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2000.247547][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2000.247547][   T73]      addrconf_dad_begin+0x310/0x670
[ 2000.247547][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2000.247547][   T73]      process_one_work+0x84d/0x18a0
[ 2000.247547][   T73]      worker_thread+0x587/0xd30
[ 2000.247547][   T73]      kthread+0x28a/0x350
[ 2000.247547][   T73]      ret_from_fork+0x31/0x70
[ 2000.247547][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2000.247547][   T73] 
[ 2000.249661][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2000.249661][   T73]      netdev_get_by_index+0x5e/0x80
[ 2000.249661][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2000.249661][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2000.249661][   T73]      ip6_route_add+0x1c/0x140
[ 2000.249661][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2000.249661][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2000.249661][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2000.249661][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2000.249661][   T73]      netlink_rcv_skb+0x130/0x360
[ 2000.249661][   T73]      netlink_unicast+0x449/0x710
[ 2000.249661][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2000.249661][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2000.249661][   T73]      ___sys_sendmsg+0xee/0x170
[ 2000.249661][   T73]      __sys_sendmsg+0xcd/0x170
[ 2000.249661][   T73]      do_syscall_64+0xc6/0x1e0
[ 2000.249661][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2000.249661][   T73] 
[ 2000.251919][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2000.251919][   T73]      netdev_get_by_index+0x5e/0x80
[ 2000.251919][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2000.251919][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2000.251919][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2000.251919][   T73]      ipv6_add_addr+0x411/0x2000
[ 2000.251919][   T73]      inet6_addr_add+0x30e/0xa40
[ 2000.251919][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2000.251919][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2000.251919][   T73]      netlink_rcv_skb+0x130/0x360
[ 2000.251919][   T73]      netlink_unicast+0x449/0x710
[ 2000.251919][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2000.251919][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2000.251919][   T73]      ___sys_sendmsg+0xee/0x170
[ 2000.251919][   T73]      __sys_sendmsg+0xcd/0x170
[ 2000.251919][   T73]      do_syscall_64+0xc6/0x1e0
[ 2000.251919][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2000.251919][   T73] 
[ 2000.254165][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2000.254165][   T73]      netdev_get_by_index+0x5e/0x80
[ 2000.254165][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2000.254165][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2000.254165][   T73]      ip6_route_add+0x1c/0x140
[ 2000.254165][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2000.254165][   T73]      addrconf_add_dev+0xe2/0x170
[ 2000.254165][   T73]      inet6_addr_add+0x12f/0xa40
[ 2000.254165][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2000.254165][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2000.254165][   T73]      netlink_rcv_skb+0x130/0x360
[ 2000.254165][   T73]      netlink_unicast+0x449/0x710
[ 2000.254165][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2000.254165][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2000.254165][   T73]      ___sys_sendmsg+0xee/0x170
[ 2000.254165][   T73]      __sys_sendmsg+0xcd/0x170
[ 2000.254165][   T73]      do_syscall_64+0xc6/0x1e0
[ 2000.254165][   T73] 
[ 2000.256397][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2000.256397][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2000.256397][   T73]      ipv6_find_idev+0x102/0x170
[ 2000.256397][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2000.256397][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2000.256397][   T73]      netlink_rcv_skb+0x130/0x360
[ 2000.256397][   T73]      netlink_unicast+0x449/0x710
[ 2000.256397][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2000.256397][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2000.256397][   T73]      ___sys_sendmsg+0xee/0x170
[ 2000.256397][   T73]      __sys_sendmsg+0xcd/0x170
[ 2000.256397][   T73]      do_syscall_64+0xc6/0x1e0
[ 2000.256397][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2000.256397][   T73] 
[ 2000.258127][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2000.258127][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2000.258127][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2000.258127][   T73]      ipv6_find_idev+0x102/0x170
[ 2000.258127][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2000.258127][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2000.258127][   T73]      netlink_rcv_skb+0x130/0x360
[ 2000.258127][   T73]      netlink_unicast+0x449/0x710
[ 2000.258127][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2000.258127][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2000.258127][   T73]      ___sys_sendmsg+0xee/0x170
[ 2000.258127][   T73]      __sys_sendmsg+0xcd/0x170
[ 2000.258127][   T73]      do_syscall_64+0xc6/0x1e0
[ 2000.258127][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2000.258127][   T73] 
[ 2010.423805][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2010.424320][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2010.424320][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2010.424320][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2010.424320][   T73]      fib6_nh_init+0xa22/0x1580
[ 2010.424320][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2010.424320][   T73]      ip6_route_add+0x1c/0x140
[ 2010.424320][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2010.424320][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2010.424320][   T73]      netlink_rcv_skb+0x130/0x360
[ 2010.424320][   T73]      netlink_unicast+0x449/0x710
[ 2010.424320][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2010.424320][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2010.424320][   T73]      ___sys_sendmsg+0xee/0x170
[ 2010.424320][   T73]      __sys_sendmsg+0xcd/0x170
[ 2010.424320][   T73]      do_syscall_64+0xc6/0x1e0
[ 2010.424320][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2010.424320][   T73] 
[ 2010.426500][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2010.426500][   T73]      dst_init+0x84/0x4a0
[ 2010.426500][   T73]      dst_alloc+0x97/0x150
[ 2010.426500][   T73]      ip6_dst_alloc+0x23/0x90
[ 2010.426500][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2010.426500][   T73]      ip6_pol_route+0x56f/0x840
[ 2010.426500][   T73]      fib6_rule_lookup+0x456/0x630
[ 2010.426500][   T73]      ip6_route_input+0x59c/0xa50
[ 2010.426500][   T73]      ipv6_rcv+0x397/0x810
[ 2010.426500][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2010.426500][   T73]      process_backlog+0x101/0x620
[ 2010.426500][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2010.426500][   T73]      net_rx_action+0x495/0xbe0
[ 2010.426500][   T73]      __do_softirq+0x1b5/0x7f6
[ 2010.426500][   T73] 
[ 2010.428355][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2010.428355][   T73]      netdev_get_by_index+0x5e/0x80
[ 2010.428355][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2010.428355][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2010.428355][   T73]      ip6_route_add+0x1c/0x140
[ 2010.428355][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2010.428355][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2010.428355][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2010.428355][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2010.428355][   T73]      netlink_rcv_skb+0x130/0x360
[ 2010.428355][   T73]      netlink_unicast+0x449/0x710
[ 2010.428355][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2010.428355][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2010.428355][   T73]      ___sys_sendmsg+0xee/0x170
[ 2010.428355][   T73]      __sys_sendmsg+0xcd/0x170
[ 2010.428355][   T73]      do_syscall_64+0xc6/0x1e0
[ 2010.428355][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2010.428355][   T73] 
[ 2010.430620][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2010.430620][   T73]      netdev_get_by_index+0x5e/0x80
[ 2010.430620][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2010.430620][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2010.430620][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2010.430620][   T73]      ipv6_add_addr+0x411/0x2000
[ 2010.430620][   T73]      inet6_addr_add+0x30e/0xa40
[ 2010.430620][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2010.430620][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2010.430620][   T73]      netlink_rcv_skb+0x130/0x360
[ 2010.430620][   T73]      netlink_unicast+0x449/0x710
[ 2010.430620][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2010.430620][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2010.430620][   T73]      ___sys_sendmsg+0xee/0x170
[ 2010.430620][   T73]      __sys_sendmsg+0xcd/0x170
[ 2010.430620][   T73]      do_syscall_64+0xc6/0x1e0
[ 2010.430620][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2010.430620][   T73] 
[ 2010.432882][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2010.432882][   T73]      netdev_get_by_index+0x5e/0x80
[ 2010.432882][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2010.432882][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2010.432882][   T73]      ip6_route_add+0x1c/0x140
[ 2010.432882][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2010.432882][   T73]      addrconf_add_dev+0xe2/0x170
[ 2010.432882][   T73]      inet6_addr_add+0x12f/0xa40
[ 2010.432882][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2010.432882][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2010.432882][   T73]      netlink_rcv_skb+0x130/0x360
[ 2010.432882][   T73]      netlink_unicast+0x449/0x710
[ 2010.432882][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2010.432882][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2010.432882][   T73]      ___sys_sendmsg+0xee/0x170
[ 2010.432882][   T73]      __sys_sendmsg+0xcd/0x170
[ 2010.432882][   T73]      do_syscall_64+0xc6/0x1e0
[ 2010.432882][   T73] 
[ 2010.435113][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2010.435113][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2010.435113][   T73]      ipv6_find_idev+0x102/0x170
[ 2010.435113][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2010.435113][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2010.435113][   T73]      netlink_rcv_skb+0x130/0x360
[ 2010.435113][   T73]      netlink_unicast+0x449/0x710
[ 2010.435113][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2010.435113][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2010.435113][   T73]      ___sys_sendmsg+0xee/0x170
[ 2010.435113][   T73]      __sys_sendmsg+0xcd/0x170
[ 2010.435113][   T73]      do_syscall_64+0xc6/0x1e0
[ 2010.435113][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2010.435113][   T73] 
[ 2010.436851][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2010.436851][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2010.436851][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2010.436851][   T73]      ipv6_find_idev+0x102/0x170
[ 2010.436851][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2010.436851][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2010.436851][   T73]      netlink_rcv_skb+0x130/0x360
[ 2010.436851][   T73]      netlink_unicast+0x449/0x710
[ 2010.436851][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2010.436851][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2010.436851][   T73]      ___sys_sendmsg+0xee/0x170
[ 2010.436851][   T73]      __sys_sendmsg+0xcd/0x170
[ 2010.436851][   T73]      do_syscall_64+0xc6/0x1e0
[ 2010.436851][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2010.436851][   T73] 
[ 2010.438767][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2010.439087][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2010.439087][   T73]      netdev_get_by_index+0x5e/0x80
[ 2010.439087][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2010.439087][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2010.439087][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2010.439087][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2010.439087][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2010.439087][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2010.439087][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2010.439087][   T73]      addrconf_dad_begin+0x310/0x670
[ 2010.439087][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2010.439087][   T73]      process_one_work+0x84d/0x18a0
[ 2010.439087][   T73]      worker_thread+0x587/0xd30
[ 2010.439087][   T73]      kthread+0x28a/0x350
[ 2010.439087][   T73]      ret_from_fork+0x31/0x70
[ 2010.439087][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2010.439087][   T73] 
[ 2010.441764][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2010.441764][   T73]      netdev_get_by_index+0x5e/0x80
[ 2010.441764][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2010.441764][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2010.441764][   T73]      ip6_route_add+0x1c/0x140
[ 2010.441764][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2010.441764][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2010.441764][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2010.441764][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2010.441764][   T73]      netlink_rcv_skb+0x130/0x360
[ 2010.441764][   T73]      netlink_unicast+0x449/0x710
[ 2010.441764][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2010.441764][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2010.441764][   T73]      ___sys_sendmsg+0xee/0x170
[ 2010.441764][   T73]      __sys_sendmsg+0xcd/0x170
[ 2010.441764][   T73]      do_syscall_64+0xc6/0x1e0
[ 2010.441764][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2010.441764][   T73] 
[ 2010.444023][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2010.444023][   T73]      netdev_get_by_index+0x5e/0x80
[ 2010.444023][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2010.444023][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2010.444023][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2010.444023][   T73]      ipv6_add_addr+0x411/0x2000
[ 2010.444023][   T73]      inet6_addr_add+0x30e/0xa40
[ 2010.444023][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2010.444023][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2010.444023][   T73]      netlink_rcv_skb+0x130/0x360
[ 2010.444023][   T73]      netlink_unicast+0x449/0x710
[ 2010.444023][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2010.444023][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2010.444023][   T73]      ___sys_sendmsg+0xee/0x170
[ 2010.444023][   T73]      __sys_sendmsg+0xcd/0x170
[ 2010.444023][   T73]      do_syscall_64+0xc6/0x1e0
[ 2010.444023][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2010.444023][   T73] 
[ 2010.446304][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2010.446304][   T73]      netdev_get_by_index+0x5e/0x80
[ 2010.446304][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2010.446304][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2010.446304][   T73]      ip6_route_add+0x1c/0x140
[ 2010.446304][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2010.446304][   T73]      addrconf_add_dev+0xe2/0x170
[ 2010.446304][   T73]      inet6_addr_add+0x12f/0xa40
[ 2010.446304][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2010.446304][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2010.446304][   T73]      netlink_rcv_skb+0x130/0x360
[ 2010.446304][   T73]      netlink_unicast+0x449/0x710
[ 2010.446304][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2010.446304][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2010.446304][   T73]      ___sys_sendmsg+0xee/0x170
[ 2010.446304][   T73]      __sys_sendmsg+0xcd/0x170
[ 2010.446304][   T73]      do_syscall_64+0xc6/0x1e0
[ 2010.446304][   T73] 
[ 2010.448537][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2010.448537][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2010.448537][   T73]      ipv6_find_idev+0x102/0x170
[ 2010.448537][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2010.448537][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2010.448537][   T73]      netlink_rcv_skb+0x130/0x360
[ 2010.448537][   T73]      netlink_unicast+0x449/0x710
[ 2010.448537][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2010.448537][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2010.448537][   T73]      ___sys_sendmsg+0xee/0x170
[ 2010.448537][   T73]      __sys_sendmsg+0xcd/0x170
[ 2010.448537][   T73]      do_syscall_64+0xc6/0x1e0
[ 2010.448537][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2010.448537][   T73] 
[ 2010.450284][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2010.450284][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2010.450284][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2010.450284][   T73]      ipv6_find_idev+0x102/0x170
[ 2010.450284][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2010.450284][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2010.450284][   T73]      netlink_rcv_skb+0x130/0x360
[ 2010.450284][   T73]      netlink_unicast+0x449/0x710
[ 2010.450284][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2010.450284][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2010.450284][   T73]      ___sys_sendmsg+0xee/0x170
[ 2010.450284][   T73]      __sys_sendmsg+0xcd/0x170
[ 2010.450284][   T73]      do_syscall_64+0xc6/0x1e0
[ 2010.450284][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2010.450284][   T73] 
[ 2010.452611][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2010.452925][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2010.452925][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2010.452925][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2010.452925][   T73]      fib6_nh_init+0xa22/0x1580
[ 2010.452925][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2010.452925][   T73]      ip6_route_add+0x1c/0x140
[ 2010.452925][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2010.452925][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2010.452925][   T73]      netlink_rcv_skb+0x130/0x360
[ 2010.452925][   T73]      netlink_unicast+0x449/0x710
[ 2010.452925][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2010.452925][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2010.452925][   T73]      ___sys_sendmsg+0xee/0x170
[ 2010.452925][   T73]      __sys_sendmsg+0xcd/0x170
[ 2010.452925][   T73]      do_syscall_64+0xc6/0x1e0
[ 2010.452925][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2010.452925][   T73] 
[ 2010.455243][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2010.455243][   T73]      dst_init+0x84/0x4a0
[ 2010.455243][   T73]      dst_alloc+0x97/0x150
[ 2010.455243][   T73]      ip6_dst_alloc+0x23/0x90
[ 2010.455243][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2010.455243][   T73]      ip6_pol_route+0x56f/0x840
[ 2010.455243][   T73]      fib6_rule_lookup+0x456/0x630
[ 2010.455243][   T73]      ip6_route_input+0x59c/0xa50
[ 2010.455243][   T73]      ipv6_rcv+0x397/0x810
[ 2010.455243][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2010.455243][   T73]      process_backlog+0x101/0x620
[ 2010.455243][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2010.455243][   T73]      net_rx_action+0x495/0xbe0
[ 2010.455243][   T73]      __do_softirq+0x1b5/0x7f6
[ 2010.455243][   T73] 
[ 2010.457351][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2010.457351][   T73]      netdev_get_by_index+0x5e/0x80
[ 2010.457351][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2010.457351][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2010.457351][   T73]      ip6_route_add+0x1c/0x140
[ 2010.457351][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2010.457351][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2010.457351][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2010.457351][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2010.457351][   T73]      netlink_rcv_skb+0x130/0x360
[ 2010.457351][   T73]      netlink_unicast+0x449/0x710
[ 2010.457351][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2010.457351][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2010.457351][   T73]      ___sys_sendmsg+0xee/0x170
[ 2010.457351][   T73]      __sys_sendmsg+0xcd/0x170
[ 2010.457351][   T73]      do_syscall_64+0xc6/0x1e0
[ 2010.457351][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2010.457351][   T73] 
[ 2010.459865][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2010.459865][   T73]      netdev_get_by_index+0x5e/0x80
[ 2010.459865][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2010.459865][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2010.459865][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2010.459865][   T73]      ipv6_add_addr+0x411/0x2000
[ 2010.459865][   T73]      inet6_addr_add+0x30e/0xa40
[ 2010.459865][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2010.459865][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2010.459865][   T73]      netlink_rcv_skb+0x130/0x360
[ 2010.459865][   T73]      netlink_unicast+0x449/0x710
[ 2010.459865][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2010.459865][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2010.459865][   T73]      ___sys_sendmsg+0xee/0x170
[ 2010.459865][   T73]      __sys_sendmsg+0xcd/0x170
[ 2010.459865][   T73]      do_syscall_64+0xc6/0x1e0
[ 2010.459865][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2010.459865][   T73] 
[ 2010.462386][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2010.462386][   T73]      netdev_get_by_index+0x5e/0x80
[ 2010.462386][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2010.462386][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2010.462386][   T73]      ip6_route_add+0x1c/0x140
[ 2010.462386][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2010.462386][   T73]      addrconf_add_dev+0xe2/0x170
[ 2010.462386][   T73]      inet6_addr_add+0x12f/0xa40
[ 2010.462386][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2010.462386][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2010.462386][   T73]      netlink_rcv_skb+0x130/0x360
[ 2010.462386][   T73]      netlink_unicast+0x449/0x710
[ 2010.462386][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2010.462386][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2010.462386][   T73]      ___sys_sendmsg+0xee/0x170
[ 2010.462386][   T73]      __sys_sendmsg+0xcd/0x170
[ 2010.462386][   T73]      do_syscall_64+0xc6/0x1e0
[ 2010.462386][   T73] 
[ 2010.464898][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2010.464898][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2010.464898][   T73]      ipv6_find_idev+0x102/0x170
[ 2010.464898][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2010.464898][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2010.464898][   T73]      netlink_rcv_skb+0x130/0x360
[ 2010.464898][   T73]      netlink_unicast+0x449/0x710
[ 2010.464898][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2010.464898][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2010.464898][   T73]      ___sys_sendmsg+0xee/0x170
[ 2010.464898][   T73]      __sys_sendmsg+0xcd/0x170
[ 2010.464898][   T73]      do_syscall_64+0xc6/0x1e0
[ 2010.464898][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2010.464898][   T73] 
[ 2010.466828][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2010.466828][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2010.466828][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2010.466828][   T73]      ipv6_find_idev+0x102/0x170
[ 2010.466828][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2010.466828][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2010.466828][   T73]      netlink_rcv_skb+0x130/0x360
[ 2010.466828][   T73]      netlink_unicast+0x449/0x710
[ 2010.466828][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2010.466828][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2010.466828][   T73]      ___sys_sendmsg+0xee/0x170
[ 2010.466828][   T73]      __sys_sendmsg+0xcd/0x170
[ 2010.466828][   T73]      do_syscall_64+0xc6/0x1e0
[ 2010.466828][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2010.466828][   T73] 
[ 2010.468990][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2010.469298][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2010.469298][   T73]      netdev_get_by_index+0x5e/0x80
[ 2010.469298][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2010.469298][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2010.469298][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2010.469298][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2010.469298][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2010.469298][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2010.469298][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2010.469298][   T73]      addrconf_dad_begin+0x310/0x670
[ 2010.469298][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2010.469298][   T73]      process_one_work+0x84d/0x18a0
[ 2010.469298][   T73]      worker_thread+0x587/0xd30
[ 2010.469298][   T73]      kthread+0x28a/0x350
[ 2010.469298][   T73]      ret_from_fork+0x31/0x70
[ 2010.469298][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2010.469298][   T73] 
[ 2010.471704][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2010.471704][   T73]      netdev_get_by_index+0x5e/0x80
[ 2010.471704][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2010.471704][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2010.471704][   T73]      ip6_route_add+0x1c/0x140
[ 2010.471704][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2010.471704][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2010.471704][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2010.471704][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2010.471704][   T73]      netlink_rcv_skb+0x130/0x360
[ 2010.471704][   T73]      netlink_unicast+0x449/0x710
[ 2010.471704][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2010.471704][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2010.471704][   T73]      ___sys_sendmsg+0xee/0x170
[ 2010.471704][   T73]      __sys_sendmsg+0xcd/0x170
[ 2010.471704][   T73]      do_syscall_64+0xc6/0x1e0
[ 2010.471704][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2010.471704][   T73] 
[ 2010.474216][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2010.474216][   T73]      netdev_get_by_index+0x5e/0x80
[ 2010.474216][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2010.474216][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2010.474216][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2010.474216][   T73]      ipv6_add_addr+0x411/0x2000
[ 2010.474216][   T73]      inet6_addr_add+0x30e/0xa40
[ 2010.474216][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2010.474216][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2010.474216][   T73]      netlink_rcv_skb+0x130/0x360
[ 2010.474216][   T73]      netlink_unicast+0x449/0x710
[ 2010.474216][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2010.474216][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2010.474216][   T73]      ___sys_sendmsg+0xee/0x170
[ 2010.474216][   T73]      __sys_sendmsg+0xcd/0x170
[ 2010.474216][   T73]      do_syscall_64+0xc6/0x1e0
[ 2010.474216][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2010.474216][   T73] 
[ 2010.476665][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2010.476665][   T73]      netdev_get_by_index+0x5e/0x80
[ 2010.476665][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2010.476665][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2010.476665][   T73]      ip6_route_add+0x1c/0x140
[ 2010.476665][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2010.476665][   T73]      addrconf_add_dev+0xe2/0x170
[ 2010.476665][   T73]      inet6_addr_add+0x12f/0xa40
[ 2010.476665][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2010.476665][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2010.476665][   T73]      netlink_rcv_skb+0x130/0x360
[ 2010.476665][   T73]      netlink_unicast+0x449/0x710
[ 2010.476665][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2010.476665][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2010.476665][   T73]      ___sys_sendmsg+0xee/0x170
[ 2010.476665][   T73]      __sys_sendmsg+0xcd/0x170
[ 2010.476665][   T73]      do_syscall_64+0xc6/0x1e0
[ 2010.476665][   T73] 
[ 2010.479195][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2010.479195][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2010.479195][   T73]      ipv6_find_idev+0x102/0x170
[ 2010.479195][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2010.479195][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2010.479195][   T73]      netlink_rcv_skb+0x130/0x360
[ 2010.479195][   T73]      netlink_unicast+0x449/0x710
[ 2010.479195][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2010.479195][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2010.479195][   T73]      ___sys_sendmsg+0xee/0x170
[ 2010.479195][   T73]      __sys_sendmsg+0xcd/0x170
[ 2010.479195][   T73]      do_syscall_64+0xc6/0x1e0
[ 2010.479195][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2010.479195][   T73] 
[ 2010.481121][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2010.481121][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2010.481121][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2010.481121][   T73]      ipv6_find_idev+0x102/0x170
[ 2010.481121][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2010.481121][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2010.481121][   T73]      netlink_rcv_skb+0x130/0x360
[ 2010.481121][   T73]      netlink_unicast+0x449/0x710
[ 2010.481121][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2010.481121][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2010.481121][   T73]      ___sys_sendmsg+0xee/0x170
[ 2010.481121][   T73]      __sys_sendmsg+0xcd/0x170
[ 2010.481121][   T73]      do_syscall_64+0xc6/0x1e0
[ 2010.481121][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2010.481121][   T73] 
[ 2020.719804][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2020.720312][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2020.720312][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2020.720312][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2020.720312][   T73]      fib6_nh_init+0xa22/0x1580
[ 2020.720312][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2020.720312][   T73]      ip6_route_add+0x1c/0x140
[ 2020.720312][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2020.720312][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2020.720312][   T73]      netlink_rcv_skb+0x130/0x360
[ 2020.720312][   T73]      netlink_unicast+0x449/0x710
[ 2020.720312][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2020.720312][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2020.720312][   T73]      ___sys_sendmsg+0xee/0x170
[ 2020.720312][   T73]      __sys_sendmsg+0xcd/0x170
[ 2020.720312][   T73]      do_syscall_64+0xc6/0x1e0
[ 2020.720312][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2020.720312][   T73] 
[ 2020.722459][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2020.722459][   T73]      dst_init+0x84/0x4a0
[ 2020.722459][   T73]      dst_alloc+0x97/0x150
[ 2020.722459][   T73]      ip6_dst_alloc+0x23/0x90
[ 2020.722459][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2020.722459][   T73]      ip6_pol_route+0x56f/0x840
[ 2020.722459][   T73]      fib6_rule_lookup+0x456/0x630
[ 2020.722459][   T73]      ip6_route_input+0x59c/0xa50
[ 2020.722459][   T73]      ipv6_rcv+0x397/0x810
[ 2020.722459][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2020.722459][   T73]      process_backlog+0x101/0x620
[ 2020.722459][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2020.722459][   T73]      net_rx_action+0x495/0xbe0
[ 2020.722459][   T73]      __do_softirq+0x1b5/0x7f6
[ 2020.722459][   T73] 
[ 2020.724310][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2020.724310][   T73]      netdev_get_by_index+0x5e/0x80
[ 2020.724310][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2020.724310][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2020.724310][   T73]      ip6_route_add+0x1c/0x140
[ 2020.724310][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2020.724310][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2020.724310][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2020.724310][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2020.724310][   T73]      netlink_rcv_skb+0x130/0x360
[ 2020.724310][   T73]      netlink_unicast+0x449/0x710
[ 2020.724310][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2020.724310][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2020.724310][   T73]      ___sys_sendmsg+0xee/0x170
[ 2020.724310][   T73]      __sys_sendmsg+0xcd/0x170
[ 2020.724310][   T73]      do_syscall_64+0xc6/0x1e0
[ 2020.724310][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2020.724310][   T73] 
[ 2020.726585][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2020.726585][   T73]      netdev_get_by_index+0x5e/0x80
[ 2020.726585][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2020.726585][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2020.726585][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2020.726585][   T73]      ipv6_add_addr+0x411/0x2000
[ 2020.726585][   T73]      inet6_addr_add+0x30e/0xa40
[ 2020.726585][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2020.726585][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2020.726585][   T73]      netlink_rcv_skb+0x130/0x360
[ 2020.726585][   T73]      netlink_unicast+0x449/0x710
[ 2020.726585][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2020.726585][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2020.726585][   T73]      ___sys_sendmsg+0xee/0x170
[ 2020.726585][   T73]      __sys_sendmsg+0xcd/0x170
[ 2020.726585][   T73]      do_syscall_64+0xc6/0x1e0
[ 2020.726585][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2020.726585][   T73] 
[ 2020.728835][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2020.728835][   T73]      netdev_get_by_index+0x5e/0x80
[ 2020.728835][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2020.728835][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2020.728835][   T73]      ip6_route_add+0x1c/0x140
[ 2020.728835][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2020.728835][   T73]      addrconf_add_dev+0xe2/0x170
[ 2020.728835][   T73]      inet6_addr_add+0x12f/0xa40
[ 2020.728835][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2020.728835][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2020.728835][   T73]      netlink_rcv_skb+0x130/0x360
[ 2020.728835][   T73]      netlink_unicast+0x449/0x710
[ 2020.728835][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2020.728835][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2020.728835][   T73]      ___sys_sendmsg+0xee/0x170
[ 2020.728835][   T73]      __sys_sendmsg+0xcd/0x170
[ 2020.728835][   T73]      do_syscall_64+0xc6/0x1e0
[ 2020.728835][   T73] 
[ 2020.731049][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2020.731049][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2020.731049][   T73]      ipv6_find_idev+0x102/0x170
[ 2020.731049][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2020.731049][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2020.731049][   T73]      netlink_rcv_skb+0x130/0x360
[ 2020.731049][   T73]      netlink_unicast+0x449/0x710
[ 2020.731049][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2020.731049][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2020.731049][   T73]      ___sys_sendmsg+0xee/0x170
[ 2020.731049][   T73]      __sys_sendmsg+0xcd/0x170
[ 2020.731049][   T73]      do_syscall_64+0xc6/0x1e0
[ 2020.731049][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2020.731049][   T73] 
[ 2020.732793][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2020.732793][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2020.732793][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2020.732793][   T73]      ipv6_find_idev+0x102/0x170
[ 2020.732793][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2020.732793][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2020.732793][   T73]      netlink_rcv_skb+0x130/0x360
[ 2020.732793][   T73]      netlink_unicast+0x449/0x710
[ 2020.732793][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2020.732793][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2020.732793][   T73]      ___sys_sendmsg+0xee/0x170
[ 2020.732793][   T73]      __sys_sendmsg+0xcd/0x170
[ 2020.732793][   T73]      do_syscall_64+0xc6/0x1e0
[ 2020.732793][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2020.732793][   T73] 
[ 2020.734722][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2020.735030][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2020.735030][   T73]      netdev_get_by_index+0x5e/0x80
[ 2020.735030][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2020.735030][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2020.735030][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2020.735030][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2020.735030][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2020.735030][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2020.735030][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2020.735030][   T73]      addrconf_dad_begin+0x310/0x670
[ 2020.735030][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2020.735030][   T73]      process_one_work+0x84d/0x18a0
[ 2020.735030][   T73]      worker_thread+0x587/0xd30
[ 2020.735030][   T73]      kthread+0x28a/0x350
[ 2020.735030][   T73]      ret_from_fork+0x31/0x70
[ 2020.735030][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2020.735030][   T73] 
[ 2020.737198][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2020.737198][   T73]      netdev_get_by_index+0x5e/0x80
[ 2020.737198][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2020.737198][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2020.737198][   T73]      ip6_route_add+0x1c/0x140
[ 2020.737198][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2020.737198][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2020.737198][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2020.737198][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2020.737198][   T73]      netlink_rcv_skb+0x130/0x360
[ 2020.737198][   T73]      netlink_unicast+0x449/0x710
[ 2020.737198][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2020.737198][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2020.737198][   T73]      ___sys_sendmsg+0xee/0x170
[ 2020.737198][   T73]      __sys_sendmsg+0xcd/0x170
[ 2020.737198][   T73]      do_syscall_64+0xc6/0x1e0
[ 2020.737198][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2020.737198][   T73] 
[ 2020.739450][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2020.739450][   T73]      netdev_get_by_index+0x5e/0x80
[ 2020.739450][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2020.739450][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2020.739450][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2020.739450][   T73]      ipv6_add_addr+0x411/0x2000
[ 2020.739450][   T73]      inet6_addr_add+0x30e/0xa40
[ 2020.739450][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2020.739450][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2020.739450][   T73]      netlink_rcv_skb+0x130/0x360
[ 2020.739450][   T73]      netlink_unicast+0x449/0x710
[ 2020.739450][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2020.739450][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2020.739450][   T73]      ___sys_sendmsg+0xee/0x170
[ 2020.739450][   T73]      __sys_sendmsg+0xcd/0x170
[ 2020.739450][   T73]      do_syscall_64+0xc6/0x1e0
[ 2020.739450][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2020.739450][   T73] 
[ 2020.741718][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2020.741718][   T73]      netdev_get_by_index+0x5e/0x80
[ 2020.741718][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2020.741718][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2020.741718][   T73]      ip6_route_add+0x1c/0x140
[ 2020.741718][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2020.741718][   T73]      addrconf_add_dev+0xe2/0x170
[ 2020.741718][   T73]      inet6_addr_add+0x12f/0xa40
[ 2020.741718][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2020.741718][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2020.741718][   T73]      netlink_rcv_skb+0x130/0x360
[ 2020.741718][   T73]      netlink_unicast+0x449/0x710
[ 2020.741718][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2020.741718][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2020.741718][   T73]      ___sys_sendmsg+0xee/0x170
[ 2020.741718][   T73]      __sys_sendmsg+0xcd/0x170
[ 2020.741718][   T73]      do_syscall_64+0xc6/0x1e0
[ 2020.741718][   T73] 
[ 2020.743935][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2020.743935][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2020.743935][   T73]      ipv6_find_idev+0x102/0x170
[ 2020.743935][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2020.743935][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2020.743935][   T73]      netlink_rcv_skb+0x130/0x360
[ 2020.743935][   T73]      netlink_unicast+0x449/0x710
[ 2020.743935][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2020.743935][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2020.743935][   T73]      ___sys_sendmsg+0xee/0x170
[ 2020.743935][   T73]      __sys_sendmsg+0xcd/0x170
[ 2020.743935][   T73]      do_syscall_64+0xc6/0x1e0
[ 2020.743935][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2020.743935][   T73] 
[ 2020.745680][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2020.745680][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2020.745680][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2020.745680][   T73]      ipv6_find_idev+0x102/0x170
[ 2020.745680][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2020.745680][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2020.745680][   T73]      netlink_rcv_skb+0x130/0x360
[ 2020.745680][   T73]      netlink_unicast+0x449/0x710
[ 2020.745680][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2020.745680][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2020.745680][   T73]      ___sys_sendmsg+0xee/0x170
[ 2020.745680][   T73]      __sys_sendmsg+0xcd/0x170
[ 2020.745680][   T73]      do_syscall_64+0xc6/0x1e0
[ 2020.745680][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2020.745680][   T73] 
[ 2020.747601][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2020.747911][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2020.747911][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2020.747911][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2020.747911][   T73]      fib6_nh_init+0xa22/0x1580
[ 2020.747911][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2020.747911][   T73]      ip6_route_add+0x1c/0x140
[ 2020.747911][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2020.747911][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2020.747911][   T73]      netlink_rcv_skb+0x130/0x360
[ 2020.747911][   T73]      netlink_unicast+0x449/0x710
[ 2020.747911][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2020.747911][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2020.747911][   T73]      ___sys_sendmsg+0xee/0x170
[ 2020.747911][   T73]      __sys_sendmsg+0xcd/0x170
[ 2020.747911][   T73]      do_syscall_64+0xc6/0x1e0
[ 2020.747911][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2020.747911][   T73] 
[ 2020.750213][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2020.750213][   T73]      dst_init+0x84/0x4a0
[ 2020.750213][   T73]      dst_alloc+0x97/0x150
[ 2020.750213][   T73]      ip6_dst_alloc+0x23/0x90
[ 2020.750213][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2020.750213][   T73]      ip6_pol_route+0x56f/0x840
[ 2020.750213][   T73]      fib6_rule_lookup+0x456/0x630
[ 2020.750213][   T73]      ip6_route_input+0x59c/0xa50
[ 2020.750213][   T73]      ipv6_rcv+0x397/0x810
[ 2020.750213][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2020.750213][   T73]      process_backlog+0x101/0x620
[ 2020.750213][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2020.750213][   T73]      net_rx_action+0x495/0xbe0
[ 2020.750213][   T73]      __do_softirq+0x1b5/0x7f6
[ 2020.750213][   T73] 
[ 2020.752316][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2020.752316][   T73]      netdev_get_by_index+0x5e/0x80
[ 2020.752316][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2020.752316][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2020.752316][   T73]      ip6_route_add+0x1c/0x140
[ 2020.752316][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2020.752316][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2020.752316][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2020.752316][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2020.752316][   T73]      netlink_rcv_skb+0x130/0x360
[ 2020.752316][   T73]      netlink_unicast+0x449/0x710
[ 2020.752316][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2020.752316][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2020.752316][   T73]      ___sys_sendmsg+0xee/0x170
[ 2020.752316][   T73]      __sys_sendmsg+0xcd/0x170
[ 2020.752316][   T73]      do_syscall_64+0xc6/0x1e0
[ 2020.752316][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2020.752316][   T73] 
[ 2020.754819][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2020.754819][   T73]      netdev_get_by_index+0x5e/0x80
[ 2020.754819][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2020.754819][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2020.754819][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2020.754819][   T73]      ipv6_add_addr+0x411/0x2000
[ 2020.754819][   T73]      inet6_addr_add+0x30e/0xa40
[ 2020.754819][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2020.754819][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2020.754819][   T73]      netlink_rcv_skb+0x130/0x360
[ 2020.754819][   T73]      netlink_unicast+0x449/0x710
[ 2020.754819][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2020.754819][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2020.754819][   T73]      ___sys_sendmsg+0xee/0x170
[ 2020.754819][   T73]      __sys_sendmsg+0xcd/0x170
[ 2020.754819][   T73]      do_syscall_64+0xc6/0x1e0
[ 2020.754819][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2020.754819][   T73] 
[ 2020.757334][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2020.757334][   T73]      netdev_get_by_index+0x5e/0x80
[ 2020.757334][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2020.757334][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2020.757334][   T73]      ip6_route_add+0x1c/0x140
[ 2020.757334][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2020.757334][   T73]      addrconf_add_dev+0xe2/0x170
[ 2020.757334][   T73]      inet6_addr_add+0x12f/0xa40
[ 2020.757334][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2020.757334][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2020.757334][   T73]      netlink_rcv_skb+0x130/0x360
[ 2020.757334][   T73]      netlink_unicast+0x449/0x710
[ 2020.757334][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2020.757334][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2020.757334][   T73]      ___sys_sendmsg+0xee/0x170
[ 2020.757334][   T73]      __sys_sendmsg+0xcd/0x170
[ 2020.757334][   T73]      do_syscall_64+0xc6/0x1e0
[ 2020.757334][   T73] 
[ 2020.759795][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2020.759795][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2020.759795][   T73]      ipv6_find_idev+0x102/0x170
[ 2020.759795][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2020.759795][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2020.759795][   T73]      netlink_rcv_skb+0x130/0x360
[ 2020.759795][   T73]      netlink_unicast+0x449/0x710
[ 2020.759795][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2020.759795][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2020.759795][   T73]      ___sys_sendmsg+0xee/0x170
[ 2020.759795][   T73]      __sys_sendmsg+0xcd/0x170
[ 2020.759795][   T73]      do_syscall_64+0xc6/0x1e0
[ 2020.759795][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2020.759795][   T73] 
[ 2020.761719][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2020.761719][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2020.761719][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2020.761719][   T73]      ipv6_find_idev+0x102/0x170
[ 2020.761719][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2020.761719][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2020.761719][   T73]      netlink_rcv_skb+0x130/0x360
[ 2020.761719][   T73]      netlink_unicast+0x449/0x710
[ 2020.761719][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2020.761719][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2020.761719][   T73]      ___sys_sendmsg+0xee/0x170
[ 2020.761719][   T73]      __sys_sendmsg+0xcd/0x170
[ 2020.761719][   T73]      do_syscall_64+0xc6/0x1e0
[ 2020.761719][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2020.761719][   T73] 
[ 2020.763861][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2020.764164][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2020.764164][   T73]      netdev_get_by_index+0x5e/0x80
[ 2020.764164][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2020.764164][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2020.764164][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2020.764164][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2020.764164][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2020.764164][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2020.764164][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2020.764164][   T73]      addrconf_dad_begin+0x310/0x670
[ 2020.764164][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2020.764164][   T73]      process_one_work+0x84d/0x18a0
[ 2020.764164][   T73]      worker_thread+0x587/0xd30
[ 2020.764164][   T73]      kthread+0x28a/0x350
[ 2020.764164][   T73]      ret_from_fork+0x31/0x70
[ 2020.764164][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2020.764164][   T73] 
[ 2020.766575][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2020.766575][   T73]      netdev_get_by_index+0x5e/0x80
[ 2020.766575][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2020.766575][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2020.766575][   T73]      ip6_route_add+0x1c/0x140
[ 2020.766575][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2020.766575][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2020.766575][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2020.766575][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2020.766575][   T73]      netlink_rcv_skb+0x130/0x360
[ 2020.766575][   T73]      netlink_unicast+0x449/0x710
[ 2020.766575][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2020.766575][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2020.766575][   T73]      ___sys_sendmsg+0xee/0x170
[ 2020.766575][   T73]      __sys_sendmsg+0xcd/0x170
[ 2020.766575][   T73]      do_syscall_64+0xc6/0x1e0
[ 2020.766575][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2020.766575][   T73] 
[ 2020.769132][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2020.769132][   T73]      netdev_get_by_index+0x5e/0x80
[ 2020.769132][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2020.769132][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2020.769132][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2020.769132][   T73]      ipv6_add_addr+0x411/0x2000
[ 2020.769132][   T73]      inet6_addr_add+0x30e/0xa40
[ 2020.769132][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2020.769132][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2020.769132][   T73]      netlink_rcv_skb+0x130/0x360
[ 2020.769132][   T73]      netlink_unicast+0x449/0x710
[ 2020.769132][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2020.769132][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2020.769132][   T73]      ___sys_sendmsg+0xee/0x170
[ 2020.769132][   T73]      __sys_sendmsg+0xcd/0x170
[ 2020.769132][   T73]      do_syscall_64+0xc6/0x1e0
[ 2020.769132][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2020.769132][   T73] 
[ 2020.771578][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2020.771578][   T73]      netdev_get_by_index+0x5e/0x80
[ 2020.771578][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2020.771578][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2020.771578][   T73]      ip6_route_add+0x1c/0x140
[ 2020.771578][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2020.771578][   T73]      addrconf_add_dev+0xe2/0x170
[ 2020.771578][   T73]      inet6_addr_add+0x12f/0xa40
[ 2020.771578][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2020.771578][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2020.771578][   T73]      netlink_rcv_skb+0x130/0x360
[ 2020.771578][   T73]      netlink_unicast+0x449/0x710
[ 2020.771578][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2020.771578][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2020.771578][   T73]      ___sys_sendmsg+0xee/0x170
[ 2020.771578][   T73]      __sys_sendmsg+0xcd/0x170
[ 2020.771578][   T73]      do_syscall_64+0xc6/0x1e0
[ 2020.771578][   T73] 
[ 2020.774116][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2020.774116][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2020.774116][   T73]      ipv6_find_idev+0x102/0x170
[ 2020.774116][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2020.774116][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2020.774116][   T73]      netlink_rcv_skb+0x130/0x360
[ 2020.774116][   T73]      netlink_unicast+0x449/0x710
[ 2020.774116][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2020.774116][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2020.774116][   T73]      ___sys_sendmsg+0xee/0x170
[ 2020.774116][   T73]      __sys_sendmsg+0xcd/0x170
[ 2020.774116][   T73]      do_syscall_64+0xc6/0x1e0
[ 2020.774116][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2020.774116][   T73] 
[ 2020.776047][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2020.776047][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2020.776047][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2020.776047][   T73]      ipv6_find_idev+0x102/0x170
[ 2020.776047][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2020.776047][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2020.776047][   T73]      netlink_rcv_skb+0x130/0x360
[ 2020.776047][   T73]      netlink_unicast+0x449/0x710
[ 2020.776047][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2020.776047][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2020.776047][   T73]      ___sys_sendmsg+0xee/0x170
[ 2020.776047][   T73]      __sys_sendmsg+0xcd/0x170
[ 2020.776047][   T73]      do_syscall_64+0xc6/0x1e0
[ 2020.776047][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2020.776047][   T73] 
[ 2030.983775][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2030.984268][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2030.984268][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2030.984268][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2030.984268][   T73]      fib6_nh_init+0xa22/0x1580
[ 2030.984268][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2030.984268][   T73]      ip6_route_add+0x1c/0x140
[ 2030.984268][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2030.984268][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2030.984268][   T73]      netlink_rcv_skb+0x130/0x360
[ 2030.984268][   T73]      netlink_unicast+0x449/0x710
[ 2030.984268][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2030.984268][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2030.984268][   T73]      ___sys_sendmsg+0xee/0x170
[ 2030.984268][   T73]      __sys_sendmsg+0xcd/0x170
[ 2030.984268][   T73]      do_syscall_64+0xc6/0x1e0
[ 2030.984268][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2030.984268][   T73] 
[ 2030.986196][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2030.986196][   T73]      dst_init+0x84/0x4a0
[ 2030.986196][   T73]      dst_alloc+0x97/0x150
[ 2030.986196][   T73]      ip6_dst_alloc+0x23/0x90
[ 2030.986196][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2030.986196][   T73]      ip6_pol_route+0x56f/0x840
[ 2030.986196][   T73]      fib6_rule_lookup+0x456/0x630
[ 2030.986196][   T73]      ip6_route_input+0x59c/0xa50
[ 2030.986196][   T73]      ipv6_rcv+0x397/0x810
[ 2030.986196][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2030.986196][   T73]      process_backlog+0x101/0x620
[ 2030.986196][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2030.986196][   T73]      net_rx_action+0x495/0xbe0
[ 2030.986196][   T73]      __do_softirq+0x1b5/0x7f6
[ 2030.986196][   T73] 
[ 2030.987849][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2030.987849][   T73]      netdev_get_by_index+0x5e/0x80
[ 2030.987849][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2030.987849][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2030.987849][   T73]      ip6_route_add+0x1c/0x140
[ 2030.987849][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2030.987849][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2030.987849][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2030.987849][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2030.987849][   T73]      netlink_rcv_skb+0x130/0x360
[ 2030.987849][   T73]      netlink_unicast+0x449/0x710
[ 2030.987849][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2030.987849][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2030.987849][   T73]      ___sys_sendmsg+0xee/0x170
[ 2030.987849][   T73]      __sys_sendmsg+0xcd/0x170
[ 2030.987849][   T73]      do_syscall_64+0xc6/0x1e0
[ 2030.987849][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2030.987849][   T73] 
[ 2030.989865][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2030.989865][   T73]      netdev_get_by_index+0x5e/0x80
[ 2030.989865][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2030.989865][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2030.989865][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2030.989865][   T73]      ipv6_add_addr+0x411/0x2000
[ 2030.989865][   T73]      inet6_addr_add+0x30e/0xa40
[ 2030.989865][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2030.989865][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2030.989865][   T73]      netlink_rcv_skb+0x130/0x360
[ 2030.989865][   T73]      netlink_unicast+0x449/0x710
[ 2030.989865][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2030.989865][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2030.989865][   T73]      ___sys_sendmsg+0xee/0x170
[ 2030.989865][   T73]      __sys_sendmsg+0xcd/0x170
[ 2030.989865][   T73]      do_syscall_64+0xc6/0x1e0
[ 2030.989865][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2030.989865][   T73] 
[ 2030.991868][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2030.991868][   T73]      netdev_get_by_index+0x5e/0x80
[ 2030.991868][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2030.991868][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2030.991868][   T73]      ip6_route_add+0x1c/0x140
[ 2030.991868][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2030.991868][   T73]      addrconf_add_dev+0xe2/0x170
[ 2030.991868][   T73]      inet6_addr_add+0x12f/0xa40
[ 2030.991868][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2030.991868][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2030.991868][   T73]      netlink_rcv_skb+0x130/0x360
[ 2030.991868][   T73]      netlink_unicast+0x449/0x710
[ 2030.991868][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2030.991868][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2030.991868][   T73]      ___sys_sendmsg+0xee/0x170
[ 2030.991868][   T73]      __sys_sendmsg+0xcd/0x170
[ 2030.991868][   T73]      do_syscall_64+0xc6/0x1e0
[ 2030.991868][   T73] 
[ 2030.993844][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2030.993844][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2030.993844][   T73]      ipv6_find_idev+0x102/0x170
[ 2030.993844][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2030.993844][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2030.993844][   T73]      netlink_rcv_skb+0x130/0x360
[ 2030.993844][   T73]      netlink_unicast+0x449/0x710
[ 2030.993844][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2030.993844][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2030.993844][   T73]      ___sys_sendmsg+0xee/0x170
[ 2030.993844][   T73]      __sys_sendmsg+0xcd/0x170
[ 2030.993844][   T73]      do_syscall_64+0xc6/0x1e0
[ 2030.993844][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2030.993844][   T73] 
[ 2030.995398][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2030.995398][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2030.995398][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2030.995398][   T73]      ipv6_find_idev+0x102/0x170
[ 2030.995398][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2030.995398][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2030.995398][   T73]      netlink_rcv_skb+0x130/0x360
[ 2030.995398][   T73]      netlink_unicast+0x449/0x710
[ 2030.995398][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2030.995398][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2030.995398][   T73]      ___sys_sendmsg+0xee/0x170
[ 2030.995398][   T73]      __sys_sendmsg+0xcd/0x170
[ 2030.995398][   T73]      do_syscall_64+0xc6/0x1e0
[ 2030.995398][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2030.995398][   T73] 
[ 2030.997097][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2030.997385][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2030.997385][   T73]      netdev_get_by_index+0x5e/0x80
[ 2030.997385][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2030.997385][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2030.997385][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2030.997385][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2030.997385][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2030.997385][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2030.997385][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2030.997385][   T73]      addrconf_dad_begin+0x310/0x670
[ 2030.997385][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2030.997385][   T73]      process_one_work+0x84d/0x18a0
[ 2030.997385][   T73]      worker_thread+0x587/0xd30
[ 2030.997385][   T73]      kthread+0x28a/0x350
[ 2030.997385][   T73]      ret_from_fork+0x31/0x70
[ 2030.997385][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2030.997385][   T73] 
[ 2030.999322][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2030.999322][   T73]      netdev_get_by_index+0x5e/0x80
[ 2030.999322][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2030.999322][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2030.999322][   T73]      ip6_route_add+0x1c/0x140
[ 2030.999322][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2030.999322][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2030.999322][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2030.999322][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2030.999322][   T73]      netlink_rcv_skb+0x130/0x360
[ 2030.999322][   T73]      netlink_unicast+0x449/0x710
[ 2030.999322][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2030.999322][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2030.999322][   T73]      ___sys_sendmsg+0xee/0x170
[ 2030.999322][   T73]      __sys_sendmsg+0xcd/0x170
[ 2030.999322][   T73]      do_syscall_64+0xc6/0x1e0
[ 2030.999322][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2030.999322][   T73] 
[ 2031.001329][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2031.001329][   T73]      netdev_get_by_index+0x5e/0x80
[ 2031.001329][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2031.001329][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2031.001329][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2031.001329][   T73]      ipv6_add_addr+0x411/0x2000
[ 2031.001329][   T73]      inet6_addr_add+0x30e/0xa40
[ 2031.001329][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2031.001329][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2031.001329][   T73]      netlink_rcv_skb+0x130/0x360
[ 2031.001329][   T73]      netlink_unicast+0x449/0x710
[ 2031.001329][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2031.001329][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2031.001329][   T73]      ___sys_sendmsg+0xee/0x170
[ 2031.001329][   T73]      __sys_sendmsg+0xcd/0x170
[ 2031.001329][   T73]      do_syscall_64+0xc6/0x1e0
[ 2031.001329][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2031.001329][   T73] 
[ 2031.003336][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2031.003336][   T73]      netdev_get_by_index+0x5e/0x80
[ 2031.003336][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2031.003336][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2031.003336][   T73]      ip6_route_add+0x1c/0x140
[ 2031.003336][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2031.003336][   T73]      addrconf_add_dev+0xe2/0x170
[ 2031.003336][   T73]      inet6_addr_add+0x12f/0xa40
[ 2031.003336][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2031.003336][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2031.003336][   T73]      netlink_rcv_skb+0x130/0x360
[ 2031.003336][   T73]      netlink_unicast+0x449/0x710
[ 2031.003336][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2031.003336][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2031.003336][   T73]      ___sys_sendmsg+0xee/0x170
[ 2031.003336][   T73]      __sys_sendmsg+0xcd/0x170
[ 2031.003336][   T73]      do_syscall_64+0xc6/0x1e0
[ 2031.003336][   T73] 
[ 2031.005323][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2031.005323][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2031.005323][   T73]      ipv6_find_idev+0x102/0x170
[ 2031.005323][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2031.005323][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2031.005323][   T73]      netlink_rcv_skb+0x130/0x360
[ 2031.005323][   T73]      netlink_unicast+0x449/0x710
[ 2031.005323][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2031.005323][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2031.005323][   T73]      ___sys_sendmsg+0xee/0x170
[ 2031.005323][   T73]      __sys_sendmsg+0xcd/0x170
[ 2031.005323][   T73]      do_syscall_64+0xc6/0x1e0
[ 2031.005323][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2031.005323][   T73] 
[ 2031.006876][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2031.006876][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2031.006876][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2031.006876][   T73]      ipv6_find_idev+0x102/0x170
[ 2031.006876][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2031.006876][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2031.006876][   T73]      netlink_rcv_skb+0x130/0x360
[ 2031.006876][   T73]      netlink_unicast+0x449/0x710
[ 2031.006876][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2031.006876][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2031.006876][   T73]      ___sys_sendmsg+0xee/0x170
[ 2031.006876][   T73]      __sys_sendmsg+0xcd/0x170
[ 2031.006876][   T73]      do_syscall_64+0xc6/0x1e0
[ 2031.006876][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2031.006876][   T73] 
[ 2031.008580][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2031.008859][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2031.008859][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2031.008859][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2031.008859][   T73]      fib6_nh_init+0xa22/0x1580
[ 2031.008859][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2031.008859][   T73]      ip6_route_add+0x1c/0x140
[ 2031.008859][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2031.008859][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2031.008859][   T73]      netlink_rcv_skb+0x130/0x360
[ 2031.008859][   T73]      netlink_unicast+0x449/0x710
[ 2031.008859][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2031.008859][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2031.008859][   T73]      ___sys_sendmsg+0xee/0x170
[ 2031.008859][   T73]      __sys_sendmsg+0xcd/0x170
[ 2031.008859][   T73]      do_syscall_64+0xc6/0x1e0
[ 2031.008859][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2031.008859][   T73] 
[ 2031.010934][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2031.010934][   T73]      dst_init+0x84/0x4a0
[ 2031.010934][   T73]      dst_alloc+0x97/0x150
[ 2031.010934][   T73]      ip6_dst_alloc+0x23/0x90
[ 2031.010934][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2031.010934][   T73]      ip6_pol_route+0x56f/0x840
[ 2031.010934][   T73]      fib6_rule_lookup+0x456/0x630
[ 2031.010934][   T73]      ip6_route_input+0x59c/0xa50
[ 2031.010934][   T73]      ipv6_rcv+0x397/0x810
[ 2031.010934][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2031.010934][   T73]      process_backlog+0x101/0x620
[ 2031.010934][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2031.010934][   T73]      net_rx_action+0x495/0xbe0
[ 2031.010934][   T73]      __do_softirq+0x1b5/0x7f6
[ 2031.010934][   T73] 
[ 2031.012820][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2031.012820][   T73]      netdev_get_by_index+0x5e/0x80
[ 2031.012820][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2031.012820][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2031.012820][   T73]      ip6_route_add+0x1c/0x140
[ 2031.012820][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2031.012820][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2031.012820][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2031.012820][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2031.012820][   T73]      netlink_rcv_skb+0x130/0x360
[ 2031.012820][   T73]      netlink_unicast+0x449/0x710
[ 2031.012820][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2031.012820][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2031.012820][   T73]      ___sys_sendmsg+0xee/0x170
[ 2031.012820][   T73]      __sys_sendmsg+0xcd/0x170
[ 2031.012820][   T73]      do_syscall_64+0xc6/0x1e0
[ 2031.012820][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2031.012820][   T73] 
[ 2031.015068][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2031.015068][   T73]      netdev_get_by_index+0x5e/0x80
[ 2031.015068][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2031.015068][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2031.015068][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2031.015068][   T73]      ipv6_add_addr+0x411/0x2000
[ 2031.015068][   T73]      inet6_addr_add+0x30e/0xa40
[ 2031.015068][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2031.015068][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2031.015068][   T73]      netlink_rcv_skb+0x130/0x360
[ 2031.015068][   T73]      netlink_unicast+0x449/0x710
[ 2031.015068][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2031.015068][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2031.015068][   T73]      ___sys_sendmsg+0xee/0x170
[ 2031.015068][   T73]      __sys_sendmsg+0xcd/0x170
[ 2031.015068][   T73]      do_syscall_64+0xc6/0x1e0
[ 2031.015068][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2031.015068][   T73] 
[ 2031.017268][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2031.017268][   T73]      netdev_get_by_index+0x5e/0x80
[ 2031.017268][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2031.017268][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2031.017268][   T73]      ip6_route_add+0x1c/0x140
[ 2031.017268][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2031.017268][   T73]      addrconf_add_dev+0xe2/0x170
[ 2031.017268][   T73]      inet6_addr_add+0x12f/0xa40
[ 2031.017268][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2031.017268][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2031.017268][   T73]      netlink_rcv_skb+0x130/0x360
[ 2031.017268][   T73]      netlink_unicast+0x449/0x710
[ 2031.017268][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2031.017268][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2031.017268][   T73]      ___sys_sendmsg+0xee/0x170
[ 2031.017268][   T73]      __sys_sendmsg+0xcd/0x170
[ 2031.017268][   T73]      do_syscall_64+0xc6/0x1e0
[ 2031.017268][   T73] 
[ 2031.019480][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2031.019480][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2031.019480][   T73]      ipv6_find_idev+0x102/0x170
[ 2031.019480][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2031.019480][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2031.019480][   T73]      netlink_rcv_skb+0x130/0x360
[ 2031.019480][   T73]      netlink_unicast+0x449/0x710
[ 2031.019480][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2031.019480][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2031.019480][   T73]      ___sys_sendmsg+0xee/0x170
[ 2031.019480][   T73]      __sys_sendmsg+0xcd/0x170
[ 2031.019480][   T73]      do_syscall_64+0xc6/0x1e0
[ 2031.019480][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2031.019480][   T73] 
[ 2031.021268][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2031.021268][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2031.021268][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2031.021268][   T73]      ipv6_find_idev+0x102/0x170
[ 2031.021268][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2031.021268][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2031.021268][   T73]      netlink_rcv_skb+0x130/0x360
[ 2031.021268][   T73]      netlink_unicast+0x449/0x710
[ 2031.021268][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2031.021268][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2031.021268][   T73]      ___sys_sendmsg+0xee/0x170
[ 2031.021268][   T73]      __sys_sendmsg+0xcd/0x170
[ 2031.021268][   T73]      do_syscall_64+0xc6/0x1e0
[ 2031.021268][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2031.021268][   T73] 
[ 2031.023204][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2031.023472][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2031.023472][   T73]      netdev_get_by_index+0x5e/0x80
[ 2031.023472][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2031.023472][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2031.023472][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2031.023472][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2031.023472][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2031.023472][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2031.023472][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2031.023472][   T73]      addrconf_dad_begin+0x310/0x670
[ 2031.023472][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2031.023472][   T73]      process_one_work+0x84d/0x18a0
[ 2031.023472][   T73]      worker_thread+0x587/0xd30
[ 2031.023472][   T73]      kthread+0x28a/0x350
[ 2031.023472][   T73]      ret_from_fork+0x31/0x70
[ 2031.023472][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2031.023472][   T73] 
[ 2031.025646][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2031.025646][   T73]      netdev_get_by_index+0x5e/0x80
[ 2031.025646][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2031.025646][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2031.025646][   T73]      ip6_route_add+0x1c/0x140
[ 2031.025646][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2031.025646][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2031.025646][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2031.025646][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2031.025646][   T73]      netlink_rcv_skb+0x130/0x360
[ 2031.025646][   T73]      netlink_unicast+0x449/0x710
[ 2031.025646][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2031.025646][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2031.025646][   T73]      ___sys_sendmsg+0xee/0x170
[ 2031.025646][   T73]      __sys_sendmsg+0xcd/0x170
[ 2031.025646][   T73]      do_syscall_64+0xc6/0x1e0
[ 2031.025646][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2031.025646][   T73] 
[ 2031.028362][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2031.028362][   T73]      netdev_get_by_index+0x5e/0x80
[ 2031.028362][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2031.028362][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2031.028362][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2031.028362][   T73]      ipv6_add_addr+0x411/0x2000
[ 2031.028362][   T73]      inet6_addr_add+0x30e/0xa40
[ 2031.028362][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2031.028362][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2031.028362][   T73]      netlink_rcv_skb+0x130/0x360
[ 2031.028362][   T73]      netlink_unicast+0x449/0x710
[ 2031.028362][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2031.028362][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2031.028362][   T73]      ___sys_sendmsg+0xee/0x170
[ 2031.028362][   T73]      __sys_sendmsg+0xcd/0x170
[ 2031.028362][   T73]      do_syscall_64+0xc6/0x1e0
[ 2031.028362][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2031.028362][   T73] 
[ 2031.030608][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2031.030608][   T73]      netdev_get_by_index+0x5e/0x80
[ 2031.030608][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2031.030608][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2031.030608][   T73]      ip6_route_add+0x1c/0x140
[ 2031.030608][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2031.030608][   T73]      addrconf_add_dev+0xe2/0x170
[ 2031.030608][   T73]      inet6_addr_add+0x12f/0xa40
[ 2031.030608][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2031.030608][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2031.030608][   T73]      netlink_rcv_skb+0x130/0x360
[ 2031.030608][   T73]      netlink_unicast+0x449/0x710
[ 2031.030608][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2031.030608][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2031.030608][   T73]      ___sys_sendmsg+0xee/0x170
[ 2031.030608][   T73]      __sys_sendmsg+0xcd/0x170
[ 2031.030608][   T73]      do_syscall_64+0xc6/0x1e0
[ 2031.030608][   T73] 
[ 2031.032823][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2031.032823][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2031.032823][   T73]      ipv6_find_idev+0x102/0x170
[ 2031.032823][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2031.032823][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2031.032823][   T73]      netlink_rcv_skb+0x130/0x360
[ 2031.032823][   T73]      netlink_unicast+0x449/0x710
[ 2031.032823][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2031.032823][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2031.032823][   T73]      ___sys_sendmsg+0xee/0x170
[ 2031.032823][   T73]      __sys_sendmsg+0xcd/0x170
[ 2031.032823][   T73]      do_syscall_64+0xc6/0x1e0
[ 2031.032823][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2031.032823][   T73] 
[ 2031.034488][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2031.034488][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2031.034488][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2031.034488][   T73]      ipv6_find_idev+0x102/0x170
[ 2031.034488][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2031.034488][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2031.034488][   T73]      netlink_rcv_skb+0x130/0x360
[ 2031.034488][   T73]      netlink_unicast+0x449/0x710
[ 2031.034488][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2031.034488][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2031.034488][   T73]      ___sys_sendmsg+0xee/0x170
[ 2031.034488][   T73]      __sys_sendmsg+0xcd/0x170
[ 2031.034488][   T73]      do_syscall_64+0xc6/0x1e0
[ 2031.034488][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2031.034488][   T73] 
[ 2041.143793][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2041.144280][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2041.144280][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2041.144280][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2041.144280][   T73]      fib6_nh_init+0xa22/0x1580
[ 2041.144280][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2041.144280][   T73]      ip6_route_add+0x1c/0x140
[ 2041.144280][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2041.144280][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2041.144280][   T73]      netlink_rcv_skb+0x130/0x360
[ 2041.144280][   T73]      netlink_unicast+0x449/0x710
[ 2041.144280][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2041.144280][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2041.144280][   T73]      ___sys_sendmsg+0xee/0x170
[ 2041.144280][   T73]      __sys_sendmsg+0xcd/0x170
[ 2041.144280][   T73]      do_syscall_64+0xc6/0x1e0
[ 2041.144280][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2041.144280][   T73] 
[ 2041.146210][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2041.146210][   T73]      dst_init+0x84/0x4a0
[ 2041.146210][   T73]      dst_alloc+0x97/0x150
[ 2041.146210][   T73]      ip6_dst_alloc+0x23/0x90
[ 2041.146210][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2041.146210][   T73]      ip6_pol_route+0x56f/0x840
[ 2041.146210][   T73]      fib6_rule_lookup+0x456/0x630
[ 2041.146210][   T73]      ip6_route_input+0x59c/0xa50
[ 2041.146210][   T73]      ipv6_rcv+0x397/0x810
[ 2041.146210][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2041.146210][   T73]      process_backlog+0x101/0x620
[ 2041.146210][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2041.146210][   T73]      net_rx_action+0x495/0xbe0
[ 2041.146210][   T73]      __do_softirq+0x1b5/0x7f6
[ 2041.146210][   T73] 
[ 2041.147868][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2041.147868][   T73]      netdev_get_by_index+0x5e/0x80
[ 2041.147868][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2041.147868][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2041.147868][   T73]      ip6_route_add+0x1c/0x140
[ 2041.147868][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2041.147868][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2041.147868][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2041.147868][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2041.147868][   T73]      netlink_rcv_skb+0x130/0x360
[ 2041.147868][   T73]      netlink_unicast+0x449/0x710
[ 2041.147868][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2041.147868][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2041.147868][   T73]      ___sys_sendmsg+0xee/0x170
[ 2041.147868][   T73]      __sys_sendmsg+0xcd/0x170
[ 2041.147868][   T73]      do_syscall_64+0xc6/0x1e0
[ 2041.147868][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2041.147868][   T73] 
[ 2041.149890][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2041.149890][   T73]      netdev_get_by_index+0x5e/0x80
[ 2041.149890][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2041.149890][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2041.149890][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2041.149890][   T73]      ipv6_add_addr+0x411/0x2000
[ 2041.149890][   T73]      inet6_addr_add+0x30e/0xa40
[ 2041.149890][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2041.149890][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2041.149890][   T73]      netlink_rcv_skb+0x130/0x360
[ 2041.149890][   T73]      netlink_unicast+0x449/0x710
[ 2041.149890][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2041.149890][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2041.149890][   T73]      ___sys_sendmsg+0xee/0x170
[ 2041.149890][   T73]      __sys_sendmsg+0xcd/0x170
[ 2041.149890][   T73]      do_syscall_64+0xc6/0x1e0
[ 2041.149890][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2041.149890][   T73] 
[ 2041.151907][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2041.151907][   T73]      netdev_get_by_index+0x5e/0x80
[ 2041.151907][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2041.151907][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2041.151907][   T73]      ip6_route_add+0x1c/0x140
[ 2041.151907][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2041.151907][   T73]      addrconf_add_dev+0xe2/0x170
[ 2041.151907][   T73]      inet6_addr_add+0x12f/0xa40
[ 2041.151907][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2041.151907][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2041.151907][   T73]      netlink_rcv_skb+0x130/0x360
[ 2041.151907][   T73]      netlink_unicast+0x449/0x710
[ 2041.151907][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2041.151907][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2041.151907][   T73]      ___sys_sendmsg+0xee/0x170
[ 2041.151907][   T73]      __sys_sendmsg+0xcd/0x170
[ 2041.151907][   T73]      do_syscall_64+0xc6/0x1e0
[ 2041.151907][   T73] 
[ 2041.153883][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2041.153883][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2041.153883][   T73]      ipv6_find_idev+0x102/0x170
[ 2041.153883][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2041.153883][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2041.153883][   T73]      netlink_rcv_skb+0x130/0x360
[ 2041.153883][   T73]      netlink_unicast+0x449/0x710
[ 2041.153883][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2041.153883][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2041.153883][   T73]      ___sys_sendmsg+0xee/0x170
[ 2041.153883][   T73]      __sys_sendmsg+0xcd/0x170
[ 2041.153883][   T73]      do_syscall_64+0xc6/0x1e0
[ 2041.153883][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2041.153883][   T73] 
[ 2041.155436][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2041.155436][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2041.155436][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2041.155436][   T73]      ipv6_find_idev+0x102/0x170
[ 2041.155436][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2041.155436][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2041.155436][   T73]      netlink_rcv_skb+0x130/0x360
[ 2041.155436][   T73]      netlink_unicast+0x449/0x710
[ 2041.155436][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2041.155436][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2041.155436][   T73]      ___sys_sendmsg+0xee/0x170
[ 2041.155436][   T73]      __sys_sendmsg+0xcd/0x170
[ 2041.155436][   T73]      do_syscall_64+0xc6/0x1e0
[ 2041.155436][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2041.155436][   T73] 
[ 2041.157142][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2041.157445][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2041.157445][   T73]      netdev_get_by_index+0x5e/0x80
[ 2041.157445][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2041.157445][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2041.157445][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2041.157445][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2041.157445][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2041.157445][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2041.157445][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2041.157445][   T73]      addrconf_dad_begin+0x310/0x670
[ 2041.157445][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2041.157445][   T73]      process_one_work+0x84d/0x18a0
[ 2041.157445][   T73]      worker_thread+0x587/0xd30
[ 2041.157445][   T73]      kthread+0x28a/0x350
[ 2041.157445][   T73]      ret_from_fork+0x31/0x70
[ 2041.157445][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2041.157445][   T73] 
[ 2041.159369][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2041.159369][   T73]      netdev_get_by_index+0x5e/0x80
[ 2041.159369][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2041.159369][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2041.159369][   T73]      ip6_route_add+0x1c/0x140
[ 2041.159369][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2041.159369][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2041.159369][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2041.159369][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2041.159369][   T73]      netlink_rcv_skb+0x130/0x360
[ 2041.159369][   T73]      netlink_unicast+0x449/0x710
[ 2041.159369][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2041.159369][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2041.159369][   T73]      ___sys_sendmsg+0xee/0x170
[ 2041.159369][   T73]      __sys_sendmsg+0xcd/0x170
[ 2041.159369][   T73]      do_syscall_64+0xc6/0x1e0
[ 2041.159369][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2041.159369][   T73] 
[ 2041.161380][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2041.161380][   T73]      netdev_get_by_index+0x5e/0x80
[ 2041.161380][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2041.161380][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2041.161380][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2041.161380][   T73]      ipv6_add_addr+0x411/0x2000
[ 2041.161380][   T73]      inet6_addr_add+0x30e/0xa40
[ 2041.161380][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2041.161380][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2041.161380][   T73]      netlink_rcv_skb+0x130/0x360
[ 2041.161380][   T73]      netlink_unicast+0x449/0x710
[ 2041.161380][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2041.161380][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2041.161380][   T73]      ___sys_sendmsg+0xee/0x170
[ 2041.161380][   T73]      __sys_sendmsg+0xcd/0x170
[ 2041.161380][   T73]      do_syscall_64+0xc6/0x1e0
[ 2041.161380][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2041.161380][   T73] 
[ 2041.163383][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2041.163383][   T73]      netdev_get_by_index+0x5e/0x80
[ 2041.163383][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2041.163383][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2041.163383][   T73]      ip6_route_add+0x1c/0x140
[ 2041.163383][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2041.163383][   T73]      addrconf_add_dev+0xe2/0x170
[ 2041.163383][   T73]      inet6_addr_add+0x12f/0xa40
[ 2041.163383][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2041.163383][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2041.163383][   T73]      netlink_rcv_skb+0x130/0x360
[ 2041.163383][   T73]      netlink_unicast+0x449/0x710
[ 2041.163383][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2041.163383][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2041.163383][   T73]      ___sys_sendmsg+0xee/0x170
[ 2041.163383][   T73]      __sys_sendmsg+0xcd/0x170
[ 2041.163383][   T73]      do_syscall_64+0xc6/0x1e0
[ 2041.163383][   T73] 
[ 2041.165359][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2041.165359][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2041.165359][   T73]      ipv6_find_idev+0x102/0x170
[ 2041.165359][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2041.165359][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2041.165359][   T73]      netlink_rcv_skb+0x130/0x360
[ 2041.165359][   T73]      netlink_unicast+0x449/0x710
[ 2041.165359][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2041.165359][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2041.165359][   T73]      ___sys_sendmsg+0xee/0x170
[ 2041.165359][   T73]      __sys_sendmsg+0xcd/0x170
[ 2041.165359][   T73]      do_syscall_64+0xc6/0x1e0
[ 2041.165359][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2041.165359][   T73] 
[ 2041.166900][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2041.166900][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2041.166900][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2041.166900][   T73]      ipv6_find_idev+0x102/0x170
[ 2041.166900][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2041.166900][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2041.166900][   T73]      netlink_rcv_skb+0x130/0x360
[ 2041.166900][   T73]      netlink_unicast+0x449/0x710
[ 2041.166900][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2041.166900][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2041.166900][   T73]      ___sys_sendmsg+0xee/0x170
[ 2041.166900][   T73]      __sys_sendmsg+0xcd/0x170
[ 2041.166900][   T73]      do_syscall_64+0xc6/0x1e0
[ 2041.166900][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2041.166900][   T73] 
[ 2041.168591][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2041.168881][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2041.168881][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2041.168881][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2041.168881][   T73]      fib6_nh_init+0xa22/0x1580
[ 2041.168881][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2041.168881][   T73]      ip6_route_add+0x1c/0x140
[ 2041.168881][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2041.168881][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2041.168881][   T73]      netlink_rcv_skb+0x130/0x360
[ 2041.168881][   T73]      netlink_unicast+0x449/0x710
[ 2041.168881][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2041.168881][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2041.168881][   T73]      ___sys_sendmsg+0xee/0x170
[ 2041.168881][   T73]      __sys_sendmsg+0xcd/0x170
[ 2041.168881][   T73]      do_syscall_64+0xc6/0x1e0
[ 2041.168881][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2041.168881][   T73] 
[ 2041.170956][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2041.170956][   T73]      dst_init+0x84/0x4a0
[ 2041.170956][   T73]      dst_alloc+0x97/0x150
[ 2041.170956][   T73]      ip6_dst_alloc+0x23/0x90
[ 2041.170956][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2041.170956][   T73]      ip6_pol_route+0x56f/0x840
[ 2041.170956][   T73]      fib6_rule_lookup+0x456/0x630
[ 2041.170956][   T73]      ip6_route_input+0x59c/0xa50
[ 2041.170956][   T73]      ipv6_rcv+0x397/0x810
[ 2041.170956][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2041.170956][   T73]      process_backlog+0x101/0x620
[ 2041.170956][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2041.170956][   T73]      net_rx_action+0x495/0xbe0
[ 2041.170956][   T73]      __do_softirq+0x1b5/0x7f6
[ 2041.170956][   T73] 
[ 2041.172791][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2041.172791][   T73]      netdev_get_by_index+0x5e/0x80
[ 2041.172791][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2041.172791][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2041.172791][   T73]      ip6_route_add+0x1c/0x140
[ 2041.172791][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2041.172791][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2041.172791][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2041.172791][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2041.172791][   T73]      netlink_rcv_skb+0x130/0x360
[ 2041.172791][   T73]      netlink_unicast+0x449/0x710
[ 2041.172791][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2041.172791][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2041.172791][   T73]      ___sys_sendmsg+0xee/0x170
[ 2041.172791][   T73]      __sys_sendmsg+0xcd/0x170
[ 2041.172791][   T73]      do_syscall_64+0xc6/0x1e0
[ 2041.172791][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2041.172791][   T73] 
[ 2041.175046][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2041.175046][   T73]      netdev_get_by_index+0x5e/0x80
[ 2041.175046][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2041.175046][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2041.175046][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2041.175046][   T73]      ipv6_add_addr+0x411/0x2000
[ 2041.175046][   T73]      inet6_addr_add+0x30e/0xa40
[ 2041.175046][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2041.175046][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2041.175046][   T73]      netlink_rcv_skb+0x130/0x360
[ 2041.175046][   T73]      netlink_unicast+0x449/0x710
[ 2041.175046][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2041.175046][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2041.175046][   T73]      ___sys_sendmsg+0xee/0x170
[ 2041.175046][   T73]      __sys_sendmsg+0xcd/0x170
[ 2041.175046][   T73]      do_syscall_64+0xc6/0x1e0
[ 2041.175046][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2041.175046][   T73] 
[ 2041.177713][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2041.177713][   T73]      netdev_get_by_index+0x5e/0x80
[ 2041.177713][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2041.177713][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2041.177713][   T73]      ip6_route_add+0x1c/0x140
[ 2041.177713][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2041.177713][   T73]      addrconf_add_dev+0xe2/0x170
[ 2041.177713][   T73]      inet6_addr_add+0x12f/0xa40
[ 2041.177713][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2041.177713][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2041.177713][   T73]      netlink_rcv_skb+0x130/0x360
[ 2041.177713][   T73]      netlink_unicast+0x449/0x710
[ 2041.177713][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2041.177713][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2041.177713][   T73]      ___sys_sendmsg+0xee/0x170
[ 2041.177713][   T73]      __sys_sendmsg+0xcd/0x170
[ 2041.177713][   T73]      do_syscall_64+0xc6/0x1e0
[ 2041.177713][   T73] 
[ 2041.179935][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2041.179935][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2041.179935][   T73]      ipv6_find_idev+0x102/0x170
[ 2041.179935][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2041.179935][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2041.179935][   T73]      netlink_rcv_skb+0x130/0x360
[ 2041.179935][   T73]      netlink_unicast+0x449/0x710
[ 2041.179935][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2041.179935][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2041.179935][   T73]      ___sys_sendmsg+0xee/0x170
[ 2041.179935][   T73]      __sys_sendmsg+0xcd/0x170
[ 2041.179935][   T73]      do_syscall_64+0xc6/0x1e0
[ 2041.179935][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2041.179935][   T73] 
[ 2041.181664][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2041.181664][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2041.181664][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2041.181664][   T73]      ipv6_find_idev+0x102/0x170
[ 2041.181664][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2041.181664][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2041.181664][   T73]      netlink_rcv_skb+0x130/0x360
[ 2041.181664][   T73]      netlink_unicast+0x449/0x710
[ 2041.181664][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2041.181664][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2041.181664][   T73]      ___sys_sendmsg+0xee/0x170
[ 2041.181664][   T73]      __sys_sendmsg+0xcd/0x170
[ 2041.181664][   T73]      do_syscall_64+0xc6/0x1e0
[ 2041.181664][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2041.181664][   T73] 
[ 2041.183628][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2041.183968][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2041.183968][   T73]      netdev_get_by_index+0x5e/0x80
[ 2041.183968][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2041.183968][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2041.183968][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2041.183968][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2041.183968][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2041.183968][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2041.183968][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2041.183968][   T73]      addrconf_dad_begin+0x310/0x670
[ 2041.183968][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2041.183968][   T73]      process_one_work+0x84d/0x18a0
[ 2041.183968][   T73]      worker_thread+0x587/0xd30
[ 2041.183968][   T73]      kthread+0x28a/0x350
[ 2041.183968][   T73]      ret_from_fork+0x31/0x70
[ 2041.183968][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2041.183968][   T73] 
[ 2041.186021][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2041.186021][   T73]      netdev_get_by_index+0x5e/0x80
[ 2041.186021][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2041.186021][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2041.186021][   T73]      ip6_route_add+0x1c/0x140
[ 2041.186021][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2041.186021][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2041.186021][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2041.186021][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2041.186021][   T73]      netlink_rcv_skb+0x130/0x360
[ 2041.186021][   T73]      netlink_unicast+0x449/0x710
[ 2041.186021][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2041.186021][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2041.186021][   T73]      ___sys_sendmsg+0xee/0x170
[ 2041.186021][   T73]      __sys_sendmsg+0xcd/0x170
[ 2041.186021][   T73]      do_syscall_64+0xc6/0x1e0
[ 2041.186021][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2041.186021][   T73] 
[ 2041.188324][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2041.188324][   T73]      netdev_get_by_index+0x5e/0x80
[ 2041.188324][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2041.188324][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2041.188324][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2041.188324][   T73]      ipv6_add_addr+0x411/0x2000
[ 2041.188324][   T73]      inet6_addr_add+0x30e/0xa40
[ 2041.188324][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2041.188324][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2041.188324][   T73]      netlink_rcv_skb+0x130/0x360
[ 2041.188324][   T73]      netlink_unicast+0x449/0x710
[ 2041.188324][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2041.188324][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2041.188324][   T73]      ___sys_sendmsg+0xee/0x170
[ 2041.188324][   T73]      __sys_sendmsg+0xcd/0x170
[ 2041.188324][   T73]      do_syscall_64+0xc6/0x1e0
[ 2041.188324][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2041.188324][   T73] 
[ 2041.190576][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2041.190576][   T73]      netdev_get_by_index+0x5e/0x80
[ 2041.190576][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2041.190576][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2041.190576][   T73]      ip6_route_add+0x1c/0x140
[ 2041.190576][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2041.190576][   T73]      addrconf_add_dev+0xe2/0x170
[ 2041.190576][   T73]      inet6_addr_add+0x12f/0xa40
[ 2041.190576][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2041.190576][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2041.190576][   T73]      netlink_rcv_skb+0x130/0x360
[ 2041.190576][   T73]      netlink_unicast+0x449/0x710
[ 2041.190576][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2041.190576][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2041.190576][   T73]      ___sys_sendmsg+0xee/0x170
[ 2041.190576][   T73]      __sys_sendmsg+0xcd/0x170
[ 2041.190576][   T73]      do_syscall_64+0xc6/0x1e0
[ 2041.190576][   T73] 
[ 2041.192726][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2041.192726][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2041.192726][   T73]      ipv6_find_idev+0x102/0x170
[ 2041.192726][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2041.192726][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2041.192726][   T73]      netlink_rcv_skb+0x130/0x360
[ 2041.192726][   T73]      netlink_unicast+0x449/0x710
[ 2041.192726][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2041.192726][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2041.192726][   T73]      ___sys_sendmsg+0xee/0x170
[ 2041.192726][   T73]      __sys_sendmsg+0xcd/0x170
[ 2041.192726][   T73]      do_syscall_64+0xc6/0x1e0
[ 2041.192726][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2041.192726][   T73] 
[ 2041.194458][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2041.194458][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2041.194458][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2041.194458][   T73]      ipv6_find_idev+0x102/0x170
[ 2041.194458][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2041.194458][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2041.194458][   T73]      netlink_rcv_skb+0x130/0x360
[ 2041.194458][   T73]      netlink_unicast+0x449/0x710
[ 2041.194458][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2041.194458][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2041.194458][   T73]      ___sys_sendmsg+0xee/0x170
[ 2041.194458][   T73]      __sys_sendmsg+0xcd/0x170
[ 2041.194458][   T73]      do_syscall_64+0xc6/0x1e0
[ 2041.194458][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2041.194458][   T73] 
[ 2051.431708][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2051.432224][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2051.432224][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2051.432224][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2051.432224][   T73]      fib6_nh_init+0xa22/0x1580
[ 2051.432224][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2051.432224][   T73]      ip6_route_add+0x1c/0x140
[ 2051.432224][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2051.432224][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2051.432224][   T73]      netlink_rcv_skb+0x130/0x360
[ 2051.432224][   T73]      netlink_unicast+0x449/0x710
[ 2051.432224][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2051.432224][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2051.432224][   T73]      ___sys_sendmsg+0xee/0x170
[ 2051.432224][   T73]      __sys_sendmsg+0xcd/0x170
[ 2051.432224][   T73]      do_syscall_64+0xc6/0x1e0
[ 2051.432224][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2051.432224][   T73] 
[ 2051.434157][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2051.434157][   T73]      dst_init+0x84/0x4a0
[ 2051.434157][   T73]      dst_alloc+0x97/0x150
[ 2051.434157][   T73]      ip6_dst_alloc+0x23/0x90
[ 2051.434157][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2051.434157][   T73]      ip6_pol_route+0x56f/0x840
[ 2051.434157][   T73]      fib6_rule_lookup+0x456/0x630
[ 2051.434157][   T73]      ip6_route_input+0x59c/0xa50
[ 2051.434157][   T73]      ipv6_rcv+0x397/0x810
[ 2051.434157][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2051.434157][   T73]      process_backlog+0x101/0x620
[ 2051.434157][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2051.434157][   T73]      net_rx_action+0x495/0xbe0
[ 2051.434157][   T73]      __do_softirq+0x1b5/0x7f6
[ 2051.434157][   T73] 
[ 2051.435851][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2051.435851][   T73]      netdev_get_by_index+0x5e/0x80
[ 2051.435851][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2051.435851][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2051.435851][   T73]      ip6_route_add+0x1c/0x140
[ 2051.435851][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2051.435851][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2051.435851][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2051.435851][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2051.435851][   T73]      netlink_rcv_skb+0x130/0x360
[ 2051.435851][   T73]      netlink_unicast+0x449/0x710
[ 2051.435851][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2051.435851][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2051.435851][   T73]      ___sys_sendmsg+0xee/0x170
[ 2051.435851][   T73]      __sys_sendmsg+0xcd/0x170
[ 2051.435851][   T73]      do_syscall_64+0xc6/0x1e0
[ 2051.435851][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2051.435851][   T73] 
[ 2051.438039][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2051.438039][   T73]      netdev_get_by_index+0x5e/0x80
[ 2051.438039][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2051.438039][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2051.438039][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2051.438039][   T73]      ipv6_add_addr+0x411/0x2000
[ 2051.438039][   T73]      inet6_addr_add+0x30e/0xa40
[ 2051.438039][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2051.438039][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2051.438039][   T73]      netlink_rcv_skb+0x130/0x360
[ 2051.438039][   T73]      netlink_unicast+0x449/0x710
[ 2051.438039][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2051.438039][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2051.438039][   T73]      ___sys_sendmsg+0xee/0x170
[ 2051.438039][   T73]      __sys_sendmsg+0xcd/0x170
[ 2051.438039][   T73]      do_syscall_64+0xc6/0x1e0
[ 2051.438039][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2051.438039][   T73] 
[ 2051.440189][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2051.440189][   T73]      netdev_get_by_index+0x5e/0x80
[ 2051.440189][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2051.440189][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2051.440189][   T73]      ip6_route_add+0x1c/0x140
[ 2051.440189][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2051.440189][   T73]      addrconf_add_dev+0xe2/0x170
[ 2051.440189][   T73]      inet6_addr_add+0x12f/0xa40
[ 2051.440189][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2051.440189][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2051.440189][   T73]      netlink_rcv_skb+0x130/0x360
[ 2051.440189][   T73]      netlink_unicast+0x449/0x710
[ 2051.440189][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2051.440189][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2051.440189][   T73]      ___sys_sendmsg+0xee/0x170
[ 2051.440189][   T73]      __sys_sendmsg+0xcd/0x170
[ 2051.440189][   T73]      do_syscall_64+0xc6/0x1e0
[ 2051.440189][   T73] 
[ 2051.442311][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2051.442311][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2051.442311][   T73]      ipv6_find_idev+0x102/0x170
[ 2051.442311][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2051.442311][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2051.442311][   T73]      netlink_rcv_skb+0x130/0x360
[ 2051.442311][   T73]      netlink_unicast+0x449/0x710
[ 2051.442311][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2051.442311][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2051.442311][   T73]      ___sys_sendmsg+0xee/0x170
[ 2051.442311][   T73]      __sys_sendmsg+0xcd/0x170
[ 2051.442311][   T73]      do_syscall_64+0xc6/0x1e0
[ 2051.442311][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2051.442311][   T73] 
[ 2051.443954][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2051.443954][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2051.443954][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2051.443954][   T73]      ipv6_find_idev+0x102/0x170
[ 2051.443954][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2051.443954][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2051.443954][   T73]      netlink_rcv_skb+0x130/0x360
[ 2051.443954][   T73]      netlink_unicast+0x449/0x710
[ 2051.443954][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2051.443954][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2051.443954][   T73]      ___sys_sendmsg+0xee/0x170
[ 2051.443954][   T73]      __sys_sendmsg+0xcd/0x170
[ 2051.443954][   T73]      do_syscall_64+0xc6/0x1e0
[ 2051.443954][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2051.443954][   T73] 
[ 2051.445814][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2051.446122][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2051.446122][   T73]      netdev_get_by_index+0x5e/0x80
[ 2051.446122][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2051.446122][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2051.446122][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2051.446122][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2051.446122][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2051.446122][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2051.446122][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2051.446122][   T73]      addrconf_dad_begin+0x310/0x670
[ 2051.446122][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2051.446122][   T73]      process_one_work+0x84d/0x18a0
[ 2051.446122][   T73]      worker_thread+0x587/0xd30
[ 2051.446122][   T73]      kthread+0x28a/0x350
[ 2051.446122][   T73]      ret_from_fork+0x31/0x70
[ 2051.446122][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2051.446122][   T73] 
[ 2051.448169][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2051.448169][   T73]      netdev_get_by_index+0x5e/0x80
[ 2051.448169][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2051.448169][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2051.448169][   T73]      ip6_route_add+0x1c/0x140
[ 2051.448169][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2051.448169][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2051.448169][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2051.448169][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2051.448169][   T73]      netlink_rcv_skb+0x130/0x360
[ 2051.448169][   T73]      netlink_unicast+0x449/0x710
[ 2051.448169][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2051.448169][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2051.448169][   T73]      ___sys_sendmsg+0xee/0x170
[ 2051.448169][   T73]      __sys_sendmsg+0xcd/0x170
[ 2051.448169][   T73]      do_syscall_64+0xc6/0x1e0
[ 2051.448169][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2051.448169][   T73] 
[ 2051.450294][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2051.450294][   T73]      netdev_get_by_index+0x5e/0x80
[ 2051.450294][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2051.450294][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2051.450294][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2051.450294][   T73]      ipv6_add_addr+0x411/0x2000
[ 2051.450294][   T73]      inet6_addr_add+0x30e/0xa40
[ 2051.450294][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2051.450294][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2051.450294][   T73]      netlink_rcv_skb+0x130/0x360
[ 2051.450294][   T73]      netlink_unicast+0x449/0x710
[ 2051.450294][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2051.450294][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2051.450294][   T73]      ___sys_sendmsg+0xee/0x170
[ 2051.450294][   T73]      __sys_sendmsg+0xcd/0x170
[ 2051.450294][   T73]      do_syscall_64+0xc6/0x1e0
[ 2051.450294][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2051.450294][   T73] 
[ 2051.452341][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2051.452341][   T73]      netdev_get_by_index+0x5e/0x80
[ 2051.452341][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2051.452341][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2051.452341][   T73]      ip6_route_add+0x1c/0x140
[ 2051.452341][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2051.452341][   T73]      addrconf_add_dev+0xe2/0x170
[ 2051.452341][   T73]      inet6_addr_add+0x12f/0xa40
[ 2051.452341][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2051.452341][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2051.452341][   T73]      netlink_rcv_skb+0x130/0x360
[ 2051.452341][   T73]      netlink_unicast+0x449/0x710
[ 2051.452341][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2051.452341][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2051.452341][   T73]      ___sys_sendmsg+0xee/0x170
[ 2051.452341][   T73]      __sys_sendmsg+0xcd/0x170
[ 2051.452341][   T73]      do_syscall_64+0xc6/0x1e0
[ 2051.452341][   T73] 
[ 2051.454358][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2051.454358][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2051.454358][   T73]      ipv6_find_idev+0x102/0x170
[ 2051.454358][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2051.454358][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2051.454358][   T73]      netlink_rcv_skb+0x130/0x360
[ 2051.454358][   T73]      netlink_unicast+0x449/0x710
[ 2051.454358][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2051.454358][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2051.454358][   T73]      ___sys_sendmsg+0xee/0x170
[ 2051.454358][   T73]      __sys_sendmsg+0xcd/0x170
[ 2051.454358][   T73]      do_syscall_64+0xc6/0x1e0
[ 2051.454358][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2051.454358][   T73] 
[ 2051.455955][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2051.455955][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2051.455955][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2051.455955][   T73]      ipv6_find_idev+0x102/0x170
[ 2051.455955][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2051.455955][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2051.455955][   T73]      netlink_rcv_skb+0x130/0x360
[ 2051.455955][   T73]      netlink_unicast+0x449/0x710
[ 2051.455955][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2051.455955][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2051.455955][   T73]      ___sys_sendmsg+0xee/0x170
[ 2051.455955][   T73]      __sys_sendmsg+0xcd/0x170
[ 2051.455955][   T73]      do_syscall_64+0xc6/0x1e0
[ 2051.455955][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2051.455955][   T73] 
[ 2051.457805][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2051.458082][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2051.458082][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2051.458082][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2051.458082][   T73]      fib6_nh_init+0xa22/0x1580
[ 2051.458082][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2051.458082][   T73]      ip6_route_add+0x1c/0x140
[ 2051.458082][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2051.458082][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2051.458082][   T73]      netlink_rcv_skb+0x130/0x360
[ 2051.458082][   T73]      netlink_unicast+0x449/0x710
[ 2051.458082][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2051.458082][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2051.458082][   T73]      ___sys_sendmsg+0xee/0x170
[ 2051.458082][   T73]      __sys_sendmsg+0xcd/0x170
[ 2051.458082][   T73]      do_syscall_64+0xc6/0x1e0
[ 2051.458082][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2051.458082][   T73] 
[ 2051.460277][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2051.460277][   T73]      dst_init+0x84/0x4a0
[ 2051.460277][   T73]      dst_alloc+0x97/0x150
[ 2051.460277][   T73]      ip6_dst_alloc+0x23/0x90
[ 2051.460277][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2051.460277][   T73]      ip6_pol_route+0x56f/0x840
[ 2051.460277][   T73]      fib6_rule_lookup+0x456/0x630
[ 2051.460277][   T73]      ip6_route_input+0x59c/0xa50
[ 2051.460277][   T73]      ipv6_rcv+0x397/0x810
[ 2051.460277][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2051.460277][   T73]      process_backlog+0x101/0x620
[ 2051.460277][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2051.460277][   T73]      net_rx_action+0x495/0xbe0
[ 2051.460277][   T73]      __do_softirq+0x1b5/0x7f6
[ 2051.460277][   T73] 
[ 2051.462294][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2051.462294][   T73]      netdev_get_by_index+0x5e/0x80
[ 2051.462294][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2051.462294][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2051.462294][   T73]      ip6_route_add+0x1c/0x140
[ 2051.462294][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2051.462294][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2051.462294][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2051.462294][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2051.462294][   T73]      netlink_rcv_skb+0x130/0x360
[ 2051.462294][   T73]      netlink_unicast+0x449/0x710
[ 2051.462294][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2051.462294][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2051.462294][   T73]      ___sys_sendmsg+0xee/0x170
[ 2051.462294][   T73]      __sys_sendmsg+0xcd/0x170
[ 2051.462294][   T73]      do_syscall_64+0xc6/0x1e0
[ 2051.462294][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2051.462294][   T73] 
[ 2051.464681][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2051.464681][   T73]      netdev_get_by_index+0x5e/0x80
[ 2051.464681][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2051.464681][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2051.464681][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2051.464681][   T73]      ipv6_add_addr+0x411/0x2000
[ 2051.464681][   T73]      inet6_addr_add+0x30e/0xa40
[ 2051.464681][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2051.464681][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2051.464681][   T73]      netlink_rcv_skb+0x130/0x360
[ 2051.464681][   T73]      netlink_unicast+0x449/0x710
[ 2051.464681][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2051.464681][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2051.464681][   T73]      ___sys_sendmsg+0xee/0x170
[ 2051.464681][   T73]      __sys_sendmsg+0xcd/0x170
[ 2051.464681][   T73]      do_syscall_64+0xc6/0x1e0
[ 2051.464681][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2051.464681][   T73] 
[ 2051.467006][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2051.467006][   T73]      netdev_get_by_index+0x5e/0x80
[ 2051.467006][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2051.467006][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2051.467006][   T73]      ip6_route_add+0x1c/0x140
[ 2051.467006][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2051.467006][   T73]      addrconf_add_dev+0xe2/0x170
[ 2051.467006][   T73]      inet6_addr_add+0x12f/0xa40
[ 2051.467006][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2051.467006][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2051.467006][   T73]      netlink_rcv_skb+0x130/0x360
[ 2051.467006][   T73]      netlink_unicast+0x449/0x710
[ 2051.467006][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2051.467006][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2051.467006][   T73]      ___sys_sendmsg+0xee/0x170
[ 2051.467006][   T73]      __sys_sendmsg+0xcd/0x170
[ 2051.467006][   T73]      do_syscall_64+0xc6/0x1e0
[ 2051.467006][   T73] 
[ 2051.469312][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2051.469312][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2051.469312][   T73]      ipv6_find_idev+0x102/0x170
[ 2051.469312][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2051.469312][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2051.469312][   T73]      netlink_rcv_skb+0x130/0x360
[ 2051.469312][   T73]      netlink_unicast+0x449/0x710
[ 2051.469312][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2051.469312][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2051.469312][   T73]      ___sys_sendmsg+0xee/0x170
[ 2051.469312][   T73]      __sys_sendmsg+0xcd/0x170
[ 2051.469312][   T73]      do_syscall_64+0xc6/0x1e0
[ 2051.469312][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2051.469312][   T73] 
[ 2051.471153][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2051.471153][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2051.471153][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2051.471153][   T73]      ipv6_find_idev+0x102/0x170
[ 2051.471153][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2051.471153][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2051.471153][   T73]      netlink_rcv_skb+0x130/0x360
[ 2051.471153][   T73]      netlink_unicast+0x449/0x710
[ 2051.471153][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2051.471153][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2051.471153][   T73]      ___sys_sendmsg+0xee/0x170
[ 2051.471153][   T73]      __sys_sendmsg+0xcd/0x170
[ 2051.471153][   T73]      do_syscall_64+0xc6/0x1e0
[ 2051.471153][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2051.471153][   T73] 
[ 2051.473131][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2051.473420][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2051.473420][   T73]      netdev_get_by_index+0x5e/0x80
[ 2051.473420][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2051.473420][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2051.473420][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2051.473420][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2051.473420][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2051.473420][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2051.473420][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2051.473420][   T73]      addrconf_dad_begin+0x310/0x670
[ 2051.473420][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2051.473420][   T73]      process_one_work+0x84d/0x18a0
[ 2051.473420][   T73]      worker_thread+0x587/0xd30
[ 2051.473420][   T73]      kthread+0x28a/0x350
[ 2051.473420][   T73]      ret_from_fork+0x31/0x70
[ 2051.473420][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2051.473420][   T73] 
[ 2051.475643][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2051.475643][   T73]      netdev_get_by_index+0x5e/0x80
[ 2051.475643][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2051.475643][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2051.475643][   T73]      ip6_route_add+0x1c/0x140
[ 2051.475643][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2051.475643][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2051.475643][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2051.475643][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2051.475643][   T73]      netlink_rcv_skb+0x130/0x360
[ 2051.475643][   T73]      netlink_unicast+0x449/0x710
[ 2051.475643][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2051.475643][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2051.475643][   T73]      ___sys_sendmsg+0xee/0x170
[ 2051.475643][   T73]      __sys_sendmsg+0xcd/0x170
[ 2051.475643][   T73]      do_syscall_64+0xc6/0x1e0
[ 2051.475643][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2051.475643][   T73] 
[ 2051.477964][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2051.477964][   T73]      netdev_get_by_index+0x5e/0x80
[ 2051.477964][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2051.477964][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2051.477964][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2051.477964][   T73]      ipv6_add_addr+0x411/0x2000
[ 2051.477964][   T73]      inet6_addr_add+0x30e/0xa40
[ 2051.477964][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2051.477964][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2051.477964][   T73]      netlink_rcv_skb+0x130/0x360
[ 2051.477964][   T73]      netlink_unicast+0x449/0x710
[ 2051.477964][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2051.477964][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2051.477964][   T73]      ___sys_sendmsg+0xee/0x170
[ 2051.477964][   T73]      __sys_sendmsg+0xcd/0x170
[ 2051.477964][   T73]      do_syscall_64+0xc6/0x1e0
[ 2051.477964][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2051.477964][   T73] 
[ 2051.480361][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2051.480361][   T73]      netdev_get_by_index+0x5e/0x80
[ 2051.480361][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2051.480361][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2051.480361][   T73]      ip6_route_add+0x1c/0x140
[ 2051.480361][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2051.480361][   T73]      addrconf_add_dev+0xe2/0x170
[ 2051.480361][   T73]      inet6_addr_add+0x12f/0xa40
[ 2051.480361][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2051.480361][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2051.480361][   T73]      netlink_rcv_skb+0x130/0x360
[ 2051.480361][   T73]      netlink_unicast+0x449/0x710
[ 2051.480361][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2051.480361][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2051.480361][   T73]      ___sys_sendmsg+0xee/0x170
[ 2051.480361][   T73]      __sys_sendmsg+0xcd/0x170
[ 2051.480361][   T73]      do_syscall_64+0xc6/0x1e0
[ 2051.480361][   T73] 
[ 2051.482783][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2051.482783][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2051.482783][   T73]      ipv6_find_idev+0x102/0x170
[ 2051.482783][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2051.482783][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2051.482783][   T73]      netlink_rcv_skb+0x130/0x360
[ 2051.482783][   T73]      netlink_unicast+0x449/0x710
[ 2051.482783][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2051.482783][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2051.482783][   T73]      ___sys_sendmsg+0xee/0x170
[ 2051.482783][   T73]      __sys_sendmsg+0xcd/0x170
[ 2051.482783][   T73]      do_syscall_64+0xc6/0x1e0
[ 2051.482783][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2051.482783][   T73] 
[ 2051.484608][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2051.484608][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2051.484608][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2051.484608][   T73]      ipv6_find_idev+0x102/0x170
[ 2051.484608][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2051.484608][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2051.484608][   T73]      netlink_rcv_skb+0x130/0x360
[ 2051.484608][   T73]      netlink_unicast+0x449/0x710
[ 2051.484608][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2051.484608][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2051.484608][   T73]      ___sys_sendmsg+0xee/0x170
[ 2051.484608][   T73]      __sys_sendmsg+0xcd/0x170
[ 2051.484608][   T73]      do_syscall_64+0xc6/0x1e0
[ 2051.484608][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2051.484608][   T73] 
[ 2061.495767][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2061.496199][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2061.496199][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2061.496199][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2061.496199][   T73]      fib6_nh_init+0xa22/0x1580
[ 2061.496199][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2061.496199][   T73]      ip6_route_add+0x1c/0x140
[ 2061.496199][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2061.496199][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2061.496199][   T73]      netlink_rcv_skb+0x130/0x360
[ 2061.496199][   T73]      netlink_unicast+0x449/0x710
[ 2061.496199][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2061.496199][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2061.496199][   T73]      ___sys_sendmsg+0xee/0x170
[ 2061.496199][   T73]      __sys_sendmsg+0xcd/0x170
[ 2061.496199][   T73]      do_syscall_64+0xc6/0x1e0
[ 2061.496199][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2061.496199][   T73] 
[ 2061.498116][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2061.498116][   T73]      dst_init+0x84/0x4a0
[ 2061.498116][   T73]      dst_alloc+0x97/0x150
[ 2061.498116][   T73]      ip6_dst_alloc+0x23/0x90
[ 2061.498116][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2061.498116][   T73]      ip6_pol_route+0x56f/0x840
[ 2061.498116][   T73]      fib6_rule_lookup+0x456/0x630
[ 2061.498116][   T73]      ip6_route_input+0x59c/0xa50
[ 2061.498116][   T73]      ipv6_rcv+0x397/0x810
[ 2061.498116][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2061.498116][   T73]      process_backlog+0x101/0x620
[ 2061.498116][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2061.498116][   T73]      net_rx_action+0x495/0xbe0
[ 2061.498116][   T73]      __do_softirq+0x1b5/0x7f6
[ 2061.498116][   T73] 
[ 2061.499881][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2061.499881][   T73]      netdev_get_by_index+0x5e/0x80
[ 2061.499881][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2061.499881][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2061.499881][   T73]      ip6_route_add+0x1c/0x140
[ 2061.499881][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2061.499881][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2061.499881][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2061.499881][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2061.499881][   T73]      netlink_rcv_skb+0x130/0x360
[ 2061.499881][   T73]      netlink_unicast+0x449/0x710
[ 2061.499881][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2061.499881][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2061.499881][   T73]      ___sys_sendmsg+0xee/0x170
[ 2061.499881][   T73]      __sys_sendmsg+0xcd/0x170
[ 2061.499881][   T73]      do_syscall_64+0xc6/0x1e0
[ 2061.499881][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2061.499881][   T73] 
[ 2061.501900][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2061.501900][   T73]      netdev_get_by_index+0x5e/0x80
[ 2061.501900][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2061.501900][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2061.501900][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2061.501900][   T73]      ipv6_add_addr+0x411/0x2000
[ 2061.501900][   T73]      inet6_addr_add+0x30e/0xa40
[ 2061.501900][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2061.501900][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2061.501900][   T73]      netlink_rcv_skb+0x130/0x360
[ 2061.501900][   T73]      netlink_unicast+0x449/0x710
[ 2061.501900][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2061.501900][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2061.501900][   T73]      ___sys_sendmsg+0xee/0x170
[ 2061.501900][   T73]      __sys_sendmsg+0xcd/0x170
[ 2061.501900][   T73]      do_syscall_64+0xc6/0x1e0
[ 2061.501900][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2061.501900][   T73] 
[ 2061.503927][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2061.503927][   T73]      netdev_get_by_index+0x5e/0x80
[ 2061.503927][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2061.503927][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2061.503927][   T73]      ip6_route_add+0x1c/0x140
[ 2061.503927][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2061.503927][   T73]      addrconf_add_dev+0xe2/0x170
[ 2061.503927][   T73]      inet6_addr_add+0x12f/0xa40
[ 2061.503927][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2061.503927][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2061.503927][   T73]      netlink_rcv_skb+0x130/0x360
[ 2061.503927][   T73]      netlink_unicast+0x449/0x710
[ 2061.503927][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2061.503927][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2061.503927][   T73]      ___sys_sendmsg+0xee/0x170
[ 2061.503927][   T73]      __sys_sendmsg+0xcd/0x170
[ 2061.503927][   T73]      do_syscall_64+0xc6/0x1e0
[ 2061.503927][   T73] 
[ 2061.505927][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2061.505927][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2061.505927][   T73]      ipv6_find_idev+0x102/0x170
[ 2061.505927][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2061.505927][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2061.505927][   T73]      netlink_rcv_skb+0x130/0x360
[ 2061.505927][   T73]      netlink_unicast+0x449/0x710
[ 2061.505927][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2061.505927][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2061.505927][   T73]      ___sys_sendmsg+0xee/0x170
[ 2061.505927][   T73]      __sys_sendmsg+0xcd/0x170
[ 2061.505927][   T73]      do_syscall_64+0xc6/0x1e0
[ 2061.505927][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2061.505927][   T73] 
[ 2061.507483][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2061.507483][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2061.507483][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2061.507483][   T73]      ipv6_find_idev+0x102/0x170
[ 2061.507483][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2061.507483][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2061.507483][   T73]      netlink_rcv_skb+0x130/0x360
[ 2061.507483][   T73]      netlink_unicast+0x449/0x710
[ 2061.507483][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2061.507483][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2061.507483][   T73]      ___sys_sendmsg+0xee/0x170
[ 2061.507483][   T73]      __sys_sendmsg+0xcd/0x170
[ 2061.507483][   T73]      do_syscall_64+0xc6/0x1e0
[ 2061.507483][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2061.507483][   T73] 
[ 2061.509185][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2061.509464][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2061.509464][   T73]      netdev_get_by_index+0x5e/0x80
[ 2061.509464][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2061.509464][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2061.509464][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2061.509464][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2061.509464][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2061.509464][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2061.509464][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2061.509464][   T73]      addrconf_dad_begin+0x310/0x670
[ 2061.509464][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2061.509464][   T73]      process_one_work+0x84d/0x18a0
[ 2061.509464][   T73]      worker_thread+0x587/0xd30
[ 2061.509464][   T73]      kthread+0x28a/0x350
[ 2061.509464][   T73]      ret_from_fork+0x31/0x70
[ 2061.509464][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2061.509464][   T73] 
[ 2061.511396][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2061.511396][   T73]      netdev_get_by_index+0x5e/0x80
[ 2061.511396][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2061.511396][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2061.511396][   T73]      ip6_route_add+0x1c/0x140
[ 2061.511396][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2061.511396][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2061.511396][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2061.511396][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2061.511396][   T73]      netlink_rcv_skb+0x130/0x360
[ 2061.511396][   T73]      netlink_unicast+0x449/0x710
[ 2061.511396][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2061.511396][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2061.511396][   T73]      ___sys_sendmsg+0xee/0x170
[ 2061.511396][   T73]      __sys_sendmsg+0xcd/0x170
[ 2061.511396][   T73]      do_syscall_64+0xc6/0x1e0
[ 2061.511396][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2061.511396][   T73] 
[ 2061.513410][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2061.513410][   T73]      netdev_get_by_index+0x5e/0x80
[ 2061.513410][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2061.513410][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2061.513410][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2061.513410][   T73]      ipv6_add_addr+0x411/0x2000
[ 2061.513410][   T73]      inet6_addr_add+0x30e/0xa40
[ 2061.513410][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2061.513410][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2061.513410][   T73]      netlink_rcv_skb+0x130/0x360
[ 2061.513410][   T73]      netlink_unicast+0x449/0x710
[ 2061.513410][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2061.513410][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2061.513410][   T73]      ___sys_sendmsg+0xee/0x170
[ 2061.513410][   T73]      __sys_sendmsg+0xcd/0x170
[ 2061.513410][   T73]      do_syscall_64+0xc6/0x1e0
[ 2061.513410][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2061.513410][   T73] 
[ 2061.515438][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2061.515438][   T73]      netdev_get_by_index+0x5e/0x80
[ 2061.515438][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2061.515438][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2061.515438][   T73]      ip6_route_add+0x1c/0x140
[ 2061.515438][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2061.515438][   T73]      addrconf_add_dev+0xe2/0x170
[ 2061.515438][   T73]      inet6_addr_add+0x12f/0xa40
[ 2061.515438][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2061.515438][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2061.515438][   T73]      netlink_rcv_skb+0x130/0x360
[ 2061.515438][   T73]      netlink_unicast+0x449/0x710
[ 2061.515438][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2061.515438][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2061.515438][   T73]      ___sys_sendmsg+0xee/0x170
[ 2061.515438][   T73]      __sys_sendmsg+0xcd/0x170
[ 2061.515438][   T73]      do_syscall_64+0xc6/0x1e0
[ 2061.515438][   T73] 
[ 2061.517414][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2061.517414][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2061.517414][   T73]      ipv6_find_idev+0x102/0x170
[ 2061.517414][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2061.517414][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2061.517414][   T73]      netlink_rcv_skb+0x130/0x360
[ 2061.517414][   T73]      netlink_unicast+0x449/0x710
[ 2061.517414][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2061.517414][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2061.517414][   T73]      ___sys_sendmsg+0xee/0x170
[ 2061.517414][   T73]      __sys_sendmsg+0xcd/0x170
[ 2061.517414][   T73]      do_syscall_64+0xc6/0x1e0
[ 2061.517414][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2061.517414][   T73] 
[ 2061.518963][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2061.518963][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2061.518963][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2061.518963][   T73]      ipv6_find_idev+0x102/0x170
[ 2061.518963][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2061.518963][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2061.518963][   T73]      netlink_rcv_skb+0x130/0x360
[ 2061.518963][   T73]      netlink_unicast+0x449/0x710
[ 2061.518963][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2061.518963][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2061.518963][   T73]      ___sys_sendmsg+0xee/0x170
[ 2061.518963][   T73]      __sys_sendmsg+0xcd/0x170
[ 2061.518963][   T73]      do_syscall_64+0xc6/0x1e0
[ 2061.518963][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2061.518963][   T73] 
[ 2061.520671][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2061.520953][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2061.520953][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2061.520953][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2061.520953][   T73]      fib6_nh_init+0xa22/0x1580
[ 2061.520953][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2061.520953][   T73]      ip6_route_add+0x1c/0x140
[ 2061.520953][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2061.520953][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2061.520953][   T73]      netlink_rcv_skb+0x130/0x360
[ 2061.520953][   T73]      netlink_unicast+0x449/0x710
[ 2061.520953][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2061.520953][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2061.520953][   T73]      ___sys_sendmsg+0xee/0x170
[ 2061.520953][   T73]      __sys_sendmsg+0xcd/0x170
[ 2061.520953][   T73]      do_syscall_64+0xc6/0x1e0
[ 2061.520953][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2061.520953][   T73] 
[ 2061.523046][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2061.523046][   T73]      dst_init+0x84/0x4a0
[ 2061.523046][   T73]      dst_alloc+0x97/0x150
[ 2061.523046][   T73]      ip6_dst_alloc+0x23/0x90
[ 2061.523046][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2061.523046][   T73]      ip6_pol_route+0x56f/0x840
[ 2061.523046][   T73]      fib6_rule_lookup+0x456/0x630
[ 2061.523046][   T73]      ip6_route_input+0x59c/0xa50
[ 2061.523046][   T73]      ipv6_rcv+0x397/0x810
[ 2061.523046][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2061.523046][   T73]      process_backlog+0x101/0x620
[ 2061.523046][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2061.523046][   T73]      net_rx_action+0x495/0xbe0
[ 2061.523046][   T73]      __do_softirq+0x1b5/0x7f6
[ 2061.523046][   T73] 
[ 2061.524877][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2061.524877][   T73]      netdev_get_by_index+0x5e/0x80
[ 2061.524877][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2061.524877][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2061.524877][   T73]      ip6_route_add+0x1c/0x140
[ 2061.524877][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2061.524877][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2061.524877][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2061.524877][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2061.524877][   T73]      netlink_rcv_skb+0x130/0x360
[ 2061.524877][   T73]      netlink_unicast+0x449/0x710
[ 2061.524877][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2061.524877][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2061.524877][   T73]      ___sys_sendmsg+0xee/0x170
[ 2061.524877][   T73]      __sys_sendmsg+0xcd/0x170
[ 2061.524877][   T73]      do_syscall_64+0xc6/0x1e0
[ 2061.524877][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2061.524877][   T73] 
[ 2061.527097][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2061.527097][   T73]      netdev_get_by_index+0x5e/0x80
[ 2061.527097][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2061.527097][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2061.527097][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2061.527097][   T73]      ipv6_add_addr+0x411/0x2000
[ 2061.527097][   T73]      inet6_addr_add+0x30e/0xa40
[ 2061.527097][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2061.527097][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2061.527097][   T73]      netlink_rcv_skb+0x130/0x360
[ 2061.527097][   T73]      netlink_unicast+0x449/0x710
[ 2061.527097][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2061.527097][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2061.527097][   T73]      ___sys_sendmsg+0xee/0x170
[ 2061.527097][   T73]      __sys_sendmsg+0xcd/0x170
[ 2061.527097][   T73]      do_syscall_64+0xc6/0x1e0
[ 2061.527097][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2061.527097][   T73] 
[ 2061.529412][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2061.529412][   T73]      netdev_get_by_index+0x5e/0x80
[ 2061.529412][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2061.529412][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2061.529412][   T73]      ip6_route_add+0x1c/0x140
[ 2061.529412][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2061.529412][   T73]      addrconf_add_dev+0xe2/0x170
[ 2061.529412][   T73]      inet6_addr_add+0x12f/0xa40
[ 2061.529412][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2061.529412][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2061.529412][   T73]      netlink_rcv_skb+0x130/0x360
[ 2061.529412][   T73]      netlink_unicast+0x449/0x710
[ 2061.529412][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2061.529412][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2061.529412][   T73]      ___sys_sendmsg+0xee/0x170
[ 2061.529412][   T73]      __sys_sendmsg+0xcd/0x170
[ 2061.529412][   T73]      do_syscall_64+0xc6/0x1e0
[ 2061.529412][   T73] 
[ 2061.531640][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2061.531640][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2061.531640][   T73]      ipv6_find_idev+0x102/0x170
[ 2061.531640][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2061.531640][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2061.531640][   T73]      netlink_rcv_skb+0x130/0x360
[ 2061.531640][   T73]      netlink_unicast+0x449/0x710
[ 2061.531640][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2061.531640][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2061.531640][   T73]      ___sys_sendmsg+0xee/0x170
[ 2061.531640][   T73]      __sys_sendmsg+0xcd/0x170
[ 2061.531640][   T73]      do_syscall_64+0xc6/0x1e0
[ 2061.531640][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2061.531640][   T73] 
[ 2061.533370][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2061.533370][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2061.533370][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2061.533370][   T73]      ipv6_find_idev+0x102/0x170
[ 2061.533370][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2061.533370][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2061.533370][   T73]      netlink_rcv_skb+0x130/0x360
[ 2061.533370][   T73]      netlink_unicast+0x449/0x710
[ 2061.533370][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2061.533370][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2061.533370][   T73]      ___sys_sendmsg+0xee/0x170
[ 2061.533370][   T73]      __sys_sendmsg+0xcd/0x170
[ 2061.533370][   T73]      do_syscall_64+0xc6/0x1e0
[ 2061.533370][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2061.533370][   T73] 
[ 2061.535253][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2061.535604][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2061.535604][   T73]      netdev_get_by_index+0x5e/0x80
[ 2061.535604][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2061.535604][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2061.535604][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2061.535604][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2061.535604][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2061.535604][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2061.535604][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2061.535604][   T73]      addrconf_dad_begin+0x310/0x670
[ 2061.535604][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2061.535604][   T73]      process_one_work+0x84d/0x18a0
[ 2061.535604][   T73]      worker_thread+0x587/0xd30
[ 2061.535604][   T73]      kthread+0x28a/0x350
[ 2061.535604][   T73]      ret_from_fork+0x31/0x70
[ 2061.535604][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2061.535604][   T73] 
[ 2061.537654][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2061.537654][   T73]      netdev_get_by_index+0x5e/0x80
[ 2061.537654][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2061.537654][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2061.537654][   T73]      ip6_route_add+0x1c/0x140
[ 2061.537654][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2061.537654][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2061.537654][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2061.537654][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2061.537654][   T73]      netlink_rcv_skb+0x130/0x360
[ 2061.537654][   T73]      netlink_unicast+0x449/0x710
[ 2061.537654][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2061.537654][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2061.537654][   T73]      ___sys_sendmsg+0xee/0x170
[ 2061.537654][   T73]      __sys_sendmsg+0xcd/0x170
[ 2061.537654][   T73]      do_syscall_64+0xc6/0x1e0
[ 2061.537654][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2061.537654][   T73] 
[ 2061.539973][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2061.539973][   T73]      netdev_get_by_index+0x5e/0x80
[ 2061.539973][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2061.539973][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2061.539973][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2061.539973][   T73]      ipv6_add_addr+0x411/0x2000
[ 2061.539973][   T73]      inet6_addr_add+0x30e/0xa40
[ 2061.539973][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2061.539973][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2061.539973][   T73]      netlink_rcv_skb+0x130/0x360
[ 2061.539973][   T73]      netlink_unicast+0x449/0x710
[ 2061.539973][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2061.539973][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2061.539973][   T73]      ___sys_sendmsg+0xee/0x170
[ 2061.539973][   T73]      __sys_sendmsg+0xcd/0x170
[ 2061.539973][   T73]      do_syscall_64+0xc6/0x1e0
[ 2061.539973][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2061.539973][   T73] 
[ 2061.542232][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2061.542232][   T73]      netdev_get_by_index+0x5e/0x80
[ 2061.542232][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2061.542232][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2061.542232][   T73]      ip6_route_add+0x1c/0x140
[ 2061.542232][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2061.542232][   T73]      addrconf_add_dev+0xe2/0x170
[ 2061.542232][   T73]      inet6_addr_add+0x12f/0xa40
[ 2061.542232][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2061.542232][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2061.542232][   T73]      netlink_rcv_skb+0x130/0x360
[ 2061.542232][   T73]      netlink_unicast+0x449/0x710
[ 2061.542232][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2061.542232][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2061.542232][   T73]      ___sys_sendmsg+0xee/0x170
[ 2061.542232][   T73]      __sys_sendmsg+0xcd/0x170
[ 2061.542232][   T73]      do_syscall_64+0xc6/0x1e0
[ 2061.542232][   T73] 
[ 2061.544461][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2061.544461][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2061.544461][   T73]      ipv6_find_idev+0x102/0x170
[ 2061.544461][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2061.544461][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2061.544461][   T73]      netlink_rcv_skb+0x130/0x360
[ 2061.544461][   T73]      netlink_unicast+0x449/0x710
[ 2061.544461][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2061.544461][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2061.544461][   T73]      ___sys_sendmsg+0xee/0x170
[ 2061.544461][   T73]      __sys_sendmsg+0xcd/0x170
[ 2061.544461][   T73]      do_syscall_64+0xc6/0x1e0
[ 2061.544461][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2061.544461][   T73] 
[ 2061.546201][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2061.546201][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2061.546201][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2061.546201][   T73]      ipv6_find_idev+0x102/0x170
[ 2061.546201][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2061.546201][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2061.546201][   T73]      netlink_rcv_skb+0x130/0x360
[ 2061.546201][   T73]      netlink_unicast+0x449/0x710
[ 2061.546201][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2061.546201][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2061.546201][   T73]      ___sys_sendmsg+0xee/0x170
[ 2061.546201][   T73]      __sys_sendmsg+0xcd/0x170
[ 2061.546201][   T73]      do_syscall_64+0xc6/0x1e0
[ 2061.546201][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2061.546201][   T73] 
[ 2071.783848][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2071.784386][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2071.784386][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2071.784386][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2071.784386][   T73]      fib6_nh_init+0xa22/0x1580
[ 2071.784386][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2071.784386][   T73]      ip6_route_add+0x1c/0x140
[ 2071.784386][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2071.784386][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2071.784386][   T73]      netlink_rcv_skb+0x130/0x360
[ 2071.784386][   T73]      netlink_unicast+0x449/0x710
[ 2071.784386][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2071.784386][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2071.784386][   T73]      ___sys_sendmsg+0xee/0x170
[ 2071.784386][   T73]      __sys_sendmsg+0xcd/0x170
[ 2071.784386][   T73]      do_syscall_64+0xc6/0x1e0
[ 2071.784386][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2071.784386][   T73] 
[ 2071.786346][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2071.786346][   T73]      dst_init+0x84/0x4a0
[ 2071.786346][   T73]      dst_alloc+0x97/0x150
[ 2071.786346][   T73]      ip6_dst_alloc+0x23/0x90
[ 2071.786346][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2071.786346][   T73]      ip6_pol_route+0x56f/0x840
[ 2071.786346][   T73]      fib6_rule_lookup+0x456/0x630
[ 2071.786346][   T73]      ip6_route_input+0x59c/0xa50
[ 2071.786346][   T73]      ipv6_rcv+0x397/0x810
[ 2071.786346][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2071.786346][   T73]      process_backlog+0x101/0x620
[ 2071.786346][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2071.786346][   T73]      net_rx_action+0x495/0xbe0
[ 2071.786346][   T73]      __do_softirq+0x1b5/0x7f6
[ 2071.786346][   T73] 
[ 2071.788019][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2071.788019][   T73]      netdev_get_by_index+0x5e/0x80
[ 2071.788019][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2071.788019][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2071.788019][   T73]      ip6_route_add+0x1c/0x140
[ 2071.788019][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2071.788019][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2071.788019][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2071.788019][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2071.788019][   T73]      netlink_rcv_skb+0x130/0x360
[ 2071.788019][   T73]      netlink_unicast+0x449/0x710
[ 2071.788019][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2071.788019][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2071.788019][   T73]      ___sys_sendmsg+0xee/0x170
[ 2071.788019][   T73]      __sys_sendmsg+0xcd/0x170
[ 2071.788019][   T73]      do_syscall_64+0xc6/0x1e0
[ 2071.788019][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2071.788019][   T73] 
[ 2071.790059][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2071.790059][   T73]      netdev_get_by_index+0x5e/0x80
[ 2071.790059][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2071.790059][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2071.790059][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2071.790059][   T73]      ipv6_add_addr+0x411/0x2000
[ 2071.790059][   T73]      inet6_addr_add+0x30e/0xa40
[ 2071.790059][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2071.790059][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2071.790059][   T73]      netlink_rcv_skb+0x130/0x360
[ 2071.790059][   T73]      netlink_unicast+0x449/0x710
[ 2071.790059][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2071.790059][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2071.790059][   T73]      ___sys_sendmsg+0xee/0x170
[ 2071.790059][   T73]      __sys_sendmsg+0xcd/0x170
[ 2071.790059][   T73]      do_syscall_64+0xc6/0x1e0
[ 2071.790059][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2071.790059][   T73] 
[ 2071.792100][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2071.792100][   T73]      netdev_get_by_index+0x5e/0x80
[ 2071.792100][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2071.792100][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2071.792100][   T73]      ip6_route_add+0x1c/0x140
[ 2071.792100][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2071.792100][   T73]      addrconf_add_dev+0xe2/0x170
[ 2071.792100][   T73]      inet6_addr_add+0x12f/0xa40
[ 2071.792100][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2071.792100][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2071.792100][   T73]      netlink_rcv_skb+0x130/0x360
[ 2071.792100][   T73]      netlink_unicast+0x449/0x710
[ 2071.792100][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2071.792100][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2071.792100][   T73]      ___sys_sendmsg+0xee/0x170
[ 2071.792100][   T73]      __sys_sendmsg+0xcd/0x170
[ 2071.792100][   T73]      do_syscall_64+0xc6/0x1e0
[ 2071.792100][   T73] 
[ 2071.794116][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2071.794116][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2071.794116][   T73]      ipv6_find_idev+0x102/0x170
[ 2071.794116][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2071.794116][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2071.794116][   T73]      netlink_rcv_skb+0x130/0x360
[ 2071.794116][   T73]      netlink_unicast+0x449/0x710
[ 2071.794116][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2071.794116][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2071.794116][   T73]      ___sys_sendmsg+0xee/0x170
[ 2071.794116][   T73]      __sys_sendmsg+0xcd/0x170
[ 2071.794116][   T73]      do_syscall_64+0xc6/0x1e0
[ 2071.794116][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2071.794116][   T73] 
[ 2071.795711][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2071.795711][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2071.795711][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2071.795711][   T73]      ipv6_find_idev+0x102/0x170
[ 2071.795711][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2071.795711][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2071.795711][   T73]      netlink_rcv_skb+0x130/0x360
[ 2071.795711][   T73]      netlink_unicast+0x449/0x710
[ 2071.795711][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2071.795711][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2071.795711][   T73]      ___sys_sendmsg+0xee/0x170
[ 2071.795711][   T73]      __sys_sendmsg+0xcd/0x170
[ 2071.795711][   T73]      do_syscall_64+0xc6/0x1e0
[ 2071.795711][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2071.795711][   T73] 
[ 2071.797497][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2071.797822][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2071.797822][   T73]      netdev_get_by_index+0x5e/0x80
[ 2071.797822][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2071.797822][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2071.797822][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2071.797822][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2071.797822][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2071.797822][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2071.797822][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2071.797822][   T73]      addrconf_dad_begin+0x310/0x670
[ 2071.797822][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2071.797822][   T73]      process_one_work+0x84d/0x18a0
[ 2071.797822][   T73]      worker_thread+0x587/0xd30
[ 2071.797822][   T73]      kthread+0x28a/0x350
[ 2071.797822][   T73]      ret_from_fork+0x31/0x70
[ 2071.797822][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2071.797822][   T73] 
[ 2071.799778][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2071.799778][   T73]      netdev_get_by_index+0x5e/0x80
[ 2071.799778][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2071.799778][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2071.799778][   T73]      ip6_route_add+0x1c/0x140
[ 2071.799778][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2071.799778][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2071.799778][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2071.799778][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2071.799778][   T73]      netlink_rcv_skb+0x130/0x360
[ 2071.799778][   T73]      netlink_unicast+0x449/0x710
[ 2071.799778][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2071.799778][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2071.799778][   T73]      ___sys_sendmsg+0xee/0x170
[ 2071.799778][   T73]      __sys_sendmsg+0xcd/0x170
[ 2071.799778][   T73]      do_syscall_64+0xc6/0x1e0
[ 2071.799778][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2071.799778][   T73] 
[ 2071.801854][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2071.801854][   T73]      netdev_get_by_index+0x5e/0x80
[ 2071.801854][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2071.801854][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2071.801854][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2071.801854][   T73]      ipv6_add_addr+0x411/0x2000
[ 2071.801854][   T73]      inet6_addr_add+0x30e/0xa40
[ 2071.801854][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2071.801854][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2071.801854][   T73]      netlink_rcv_skb+0x130/0x360
[ 2071.801854][   T73]      netlink_unicast+0x449/0x710
[ 2071.801854][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2071.801854][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2071.801854][   T73]      ___sys_sendmsg+0xee/0x170
[ 2071.801854][   T73]      __sys_sendmsg+0xcd/0x170
[ 2071.801854][   T73]      do_syscall_64+0xc6/0x1e0
[ 2071.801854][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2071.801854][   T73] 
[ 2071.803897][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2071.803897][   T73]      netdev_get_by_index+0x5e/0x80
[ 2071.803897][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2071.803897][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2071.803897][   T73]      ip6_route_add+0x1c/0x140
[ 2071.803897][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2071.803897][   T73]      addrconf_add_dev+0xe2/0x170
[ 2071.803897][   T73]      inet6_addr_add+0x12f/0xa40
[ 2071.803897][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2071.803897][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2071.803897][   T73]      netlink_rcv_skb+0x130/0x360
[ 2071.803897][   T73]      netlink_unicast+0x449/0x710
[ 2071.803897][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2071.803897][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2071.803897][   T73]      ___sys_sendmsg+0xee/0x170
[ 2071.803897][   T73]      __sys_sendmsg+0xcd/0x170
[ 2071.803897][   T73]      do_syscall_64+0xc6/0x1e0
[ 2071.803897][   T73] 
[ 2071.805971][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2071.805971][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2071.805971][   T73]      ipv6_find_idev+0x102/0x170
[ 2071.805971][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2071.805971][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2071.805971][   T73]      netlink_rcv_skb+0x130/0x360
[ 2071.805971][   T73]      netlink_unicast+0x449/0x710
[ 2071.805971][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2071.805971][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2071.805971][   T73]      ___sys_sendmsg+0xee/0x170
[ 2071.805971][   T73]      __sys_sendmsg+0xcd/0x170
[ 2071.805971][   T73]      do_syscall_64+0xc6/0x1e0
[ 2071.805971][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2071.805971][   T73] 
[ 2071.807572][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2071.807572][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2071.807572][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2071.807572][   T73]      ipv6_find_idev+0x102/0x170
[ 2071.807572][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2071.807572][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2071.807572][   T73]      netlink_rcv_skb+0x130/0x360
[ 2071.807572][   T73]      netlink_unicast+0x449/0x710
[ 2071.807572][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2071.807572][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2071.807572][   T73]      ___sys_sendmsg+0xee/0x170
[ 2071.807572][   T73]      __sys_sendmsg+0xcd/0x170
[ 2071.807572][   T73]      do_syscall_64+0xc6/0x1e0
[ 2071.807572][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2071.807572][   T73] 
[ 2071.809388][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2071.809684][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2071.809684][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2071.809684][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2071.809684][   T73]      fib6_nh_init+0xa22/0x1580
[ 2071.809684][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2071.809684][   T73]      ip6_route_add+0x1c/0x140
[ 2071.809684][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2071.809684][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2071.809684][   T73]      netlink_rcv_skb+0x130/0x360
[ 2071.809684][   T73]      netlink_unicast+0x449/0x710
[ 2071.809684][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2071.809684][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2071.809684][   T73]      ___sys_sendmsg+0xee/0x170
[ 2071.809684][   T73]      __sys_sendmsg+0xcd/0x170
[ 2071.809684][   T73]      do_syscall_64+0xc6/0x1e0
[ 2071.809684][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2071.809684][   T73] 
[ 2071.811801][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2071.811801][   T73]      dst_init+0x84/0x4a0
[ 2071.811801][   T73]      dst_alloc+0x97/0x150
[ 2071.811801][   T73]      ip6_dst_alloc+0x23/0x90
[ 2071.811801][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2071.811801][   T73]      ip6_pol_route+0x56f/0x840
[ 2071.811801][   T73]      fib6_rule_lookup+0x456/0x630
[ 2071.811801][   T73]      ip6_route_input+0x59c/0xa50
[ 2071.811801][   T73]      ipv6_rcv+0x397/0x810
[ 2071.811801][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2071.811801][   T73]      process_backlog+0x101/0x620
[ 2071.811801][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2071.811801][   T73]      net_rx_action+0x495/0xbe0
[ 2071.811801][   T73]      __do_softirq+0x1b5/0x7f6
[ 2071.811801][   T73] 
[ 2071.813763][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2071.813763][   T73]      netdev_get_by_index+0x5e/0x80
[ 2071.813763][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2071.813763][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2071.813763][   T73]      ip6_route_add+0x1c/0x140
[ 2071.813763][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2071.813763][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2071.813763][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2071.813763][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2071.813763][   T73]      netlink_rcv_skb+0x130/0x360
[ 2071.813763][   T73]      netlink_unicast+0x449/0x710
[ 2071.813763][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2071.813763][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2071.813763][   T73]      ___sys_sendmsg+0xee/0x170
[ 2071.813763][   T73]      __sys_sendmsg+0xcd/0x170
[ 2071.813763][   T73]      do_syscall_64+0xc6/0x1e0
[ 2071.813763][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2071.813763][   T73] 
[ 2071.816077][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2071.816077][   T73]      netdev_get_by_index+0x5e/0x80
[ 2071.816077][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2071.816077][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2071.816077][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2071.816077][   T73]      ipv6_add_addr+0x411/0x2000
[ 2071.816077][   T73]      inet6_addr_add+0x30e/0xa40
[ 2071.816077][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2071.816077][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2071.816077][   T73]      netlink_rcv_skb+0x130/0x360
[ 2071.816077][   T73]      netlink_unicast+0x449/0x710
[ 2071.816077][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2071.816077][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2071.816077][   T73]      ___sys_sendmsg+0xee/0x170
[ 2071.816077][   T73]      __sys_sendmsg+0xcd/0x170
[ 2071.816077][   T73]      do_syscall_64+0xc6/0x1e0
[ 2071.816077][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2071.816077][   T73] 
[ 2071.818356][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2071.818356][   T73]      netdev_get_by_index+0x5e/0x80
[ 2071.818356][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2071.818356][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2071.818356][   T73]      ip6_route_add+0x1c/0x140
[ 2071.818356][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2071.818356][   T73]      addrconf_add_dev+0xe2/0x170
[ 2071.818356][   T73]      inet6_addr_add+0x12f/0xa40
[ 2071.818356][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2071.818356][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2071.818356][   T73]      netlink_rcv_skb+0x130/0x360
[ 2071.818356][   T73]      netlink_unicast+0x449/0x710
[ 2071.818356][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2071.818356][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2071.818356][   T73]      ___sys_sendmsg+0xee/0x170
[ 2071.818356][   T73]      __sys_sendmsg+0xcd/0x170
[ 2071.818356][   T73]      do_syscall_64+0xc6/0x1e0
[ 2071.818356][   T73] 
[ 2071.820653][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2071.820653][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2071.820653][   T73]      ipv6_find_idev+0x102/0x170
[ 2071.820653][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2071.820653][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2071.820653][   T73]      netlink_rcv_skb+0x130/0x360
[ 2071.820653][   T73]      netlink_unicast+0x449/0x710
[ 2071.820653][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2071.820653][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2071.820653][   T73]      ___sys_sendmsg+0xee/0x170
[ 2071.820653][   T73]      __sys_sendmsg+0xcd/0x170
[ 2071.820653][   T73]      do_syscall_64+0xc6/0x1e0
[ 2071.820653][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2071.820653][   T73] 
[ 2071.822518][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2071.822518][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2071.822518][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2071.822518][   T73]      ipv6_find_idev+0x102/0x170
[ 2071.822518][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2071.822518][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2071.822518][   T73]      netlink_rcv_skb+0x130/0x360
[ 2071.822518][   T73]      netlink_unicast+0x449/0x710
[ 2071.822518][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2071.822518][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2071.822518][   T73]      ___sys_sendmsg+0xee/0x170
[ 2071.822518][   T73]      __sys_sendmsg+0xcd/0x170
[ 2071.822518][   T73]      do_syscall_64+0xc6/0x1e0
[ 2071.822518][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2071.822518][   T73] 
[ 2071.824564][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2071.825400][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2071.825400][   T73]      netdev_get_by_index+0x5e/0x80
[ 2071.825400][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2071.825400][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2071.825400][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2071.825400][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2071.825400][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2071.825400][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2071.825400][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2071.825400][   T73]      addrconf_dad_begin+0x310/0x670
[ 2071.825400][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2071.825400][   T73]      process_one_work+0x84d/0x18a0
[ 2071.825400][   T73]      worker_thread+0x587/0xd30
[ 2071.825400][   T73]      kthread+0x28a/0x350
[ 2071.825400][   T73]      ret_from_fork+0x31/0x70
[ 2071.825400][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2071.825400][   T73] 
[ 2071.827390][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2071.827390][   T73]      netdev_get_by_index+0x5e/0x80
[ 2071.827390][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2071.827390][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2071.827390][   T73]      ip6_route_add+0x1c/0x140
[ 2071.827390][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2071.827390][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2071.827390][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2071.827390][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2071.827390][   T73]      netlink_rcv_skb+0x130/0x360
[ 2071.827390][   T73]      netlink_unicast+0x449/0x710
[ 2071.827390][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2071.827390][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2071.827390][   T73]      ___sys_sendmsg+0xee/0x170
[ 2071.827390][   T73]      __sys_sendmsg+0xcd/0x170
[ 2071.827390][   T73]      do_syscall_64+0xc6/0x1e0
[ 2071.827390][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2071.827390][   T73] 
[ 2071.829514][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2071.829514][   T73]      netdev_get_by_index+0x5e/0x80
[ 2071.829514][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2071.829514][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2071.829514][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2071.829514][   T73]      ipv6_add_addr+0x411/0x2000
[ 2071.829514][   T73]      inet6_addr_add+0x30e/0xa40
[ 2071.829514][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2071.829514][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2071.829514][   T73]      netlink_rcv_skb+0x130/0x360
[ 2071.829514][   T73]      netlink_unicast+0x449/0x710
[ 2071.829514][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2071.829514][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2071.829514][   T73]      ___sys_sendmsg+0xee/0x170
[ 2071.829514][   T73]      __sys_sendmsg+0xcd/0x170
[ 2071.829514][   T73]      do_syscall_64+0xc6/0x1e0
[ 2071.829514][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2071.829514][   T73] 
[ 2071.831833][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2071.831833][   T73]      netdev_get_by_index+0x5e/0x80
[ 2071.831833][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2071.831833][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2071.831833][   T73]      ip6_route_add+0x1c/0x140
[ 2071.831833][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2071.831833][   T73]      addrconf_add_dev+0xe2/0x170
[ 2071.831833][   T73]      inet6_addr_add+0x12f/0xa40
[ 2071.831833][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2071.831833][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2071.831833][   T73]      netlink_rcv_skb+0x130/0x360
[ 2071.831833][   T73]      netlink_unicast+0x449/0x710
[ 2071.831833][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2071.831833][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2071.831833][   T73]      ___sys_sendmsg+0xee/0x170
[ 2071.831833][   T73]      __sys_sendmsg+0xcd/0x170
[ 2071.831833][   T73]      do_syscall_64+0xc6/0x1e0
[ 2071.831833][   T73] 
[ 2071.834101][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2071.834101][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2071.834101][   T73]      ipv6_find_idev+0x102/0x170
[ 2071.834101][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2071.834101][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2071.834101][   T73]      netlink_rcv_skb+0x130/0x360
[ 2071.834101][   T73]      netlink_unicast+0x449/0x710
[ 2071.834101][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2071.834101][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2071.834101][   T73]      ___sys_sendmsg+0xee/0x170
[ 2071.834101][   T73]      __sys_sendmsg+0xcd/0x170
[ 2071.834101][   T73]      do_syscall_64+0xc6/0x1e0
[ 2071.834101][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2071.834101][   T73] 
[ 2071.835941][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2071.835941][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2071.835941][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2071.835941][   T73]      ipv6_find_idev+0x102/0x170
[ 2071.835941][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2071.835941][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2071.835941][   T73]      netlink_rcv_skb+0x130/0x360
[ 2071.835941][   T73]      netlink_unicast+0x449/0x710
[ 2071.835941][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2071.835941][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2071.835941][   T73]      ___sys_sendmsg+0xee/0x170
[ 2071.835941][   T73]      __sys_sendmsg+0xcd/0x170
[ 2071.835941][   T73]      do_syscall_64+0xc6/0x1e0
[ 2071.835941][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2071.835941][   T73] 
[ 2082.079775][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2082.080217][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2082.080217][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2082.080217][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2082.080217][   T73]      fib6_nh_init+0xa22/0x1580
[ 2082.080217][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2082.080217][   T73]      ip6_route_add+0x1c/0x140
[ 2082.080217][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2082.080217][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2082.080217][   T73]      netlink_rcv_skb+0x130/0x360
[ 2082.080217][   T73]      netlink_unicast+0x449/0x710
[ 2082.080217][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2082.080217][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2082.080217][   T73]      ___sys_sendmsg+0xee/0x170
[ 2082.080217][   T73]      __sys_sendmsg+0xcd/0x170
[ 2082.080217][   T73]      do_syscall_64+0xc6/0x1e0
[ 2082.080217][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2082.080217][   T73] 
[ 2082.082133][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2082.082133][   T73]      dst_init+0x84/0x4a0
[ 2082.082133][   T73]      dst_alloc+0x97/0x150
[ 2082.082133][   T73]      ip6_dst_alloc+0x23/0x90
[ 2082.082133][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2082.082133][   T73]      ip6_pol_route+0x56f/0x840
[ 2082.082133][   T73]      fib6_rule_lookup+0x456/0x630
[ 2082.082133][   T73]      ip6_route_input+0x59c/0xa50
[ 2082.082133][   T73]      ipv6_rcv+0x397/0x810
[ 2082.082133][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2082.082133][   T73]      process_backlog+0x101/0x620
[ 2082.082133][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2082.082133][   T73]      net_rx_action+0x495/0xbe0
[ 2082.082133][   T73]      __do_softirq+0x1b5/0x7f6
[ 2082.082133][   T73] 
[ 2082.083796][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2082.083796][   T73]      netdev_get_by_index+0x5e/0x80
[ 2082.083796][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2082.083796][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2082.083796][   T73]      ip6_route_add+0x1c/0x140
[ 2082.083796][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2082.083796][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2082.083796][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2082.083796][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2082.083796][   T73]      netlink_rcv_skb+0x130/0x360
[ 2082.083796][   T73]      netlink_unicast+0x449/0x710
[ 2082.083796][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2082.083796][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2082.083796][   T73]      ___sys_sendmsg+0xee/0x170
[ 2082.083796][   T73]      __sys_sendmsg+0xcd/0x170
[ 2082.083796][   T73]      do_syscall_64+0xc6/0x1e0
[ 2082.083796][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2082.083796][   T73] 
[ 2082.085846][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2082.085846][   T73]      netdev_get_by_index+0x5e/0x80
[ 2082.085846][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2082.085846][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2082.085846][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2082.085846][   T73]      ipv6_add_addr+0x411/0x2000
[ 2082.085846][   T73]      inet6_addr_add+0x30e/0xa40
[ 2082.085846][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2082.085846][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2082.085846][   T73]      netlink_rcv_skb+0x130/0x360
[ 2082.085846][   T73]      netlink_unicast+0x449/0x710
[ 2082.085846][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2082.085846][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2082.085846][   T73]      ___sys_sendmsg+0xee/0x170
[ 2082.085846][   T73]      __sys_sendmsg+0xcd/0x170
[ 2082.085846][   T73]      do_syscall_64+0xc6/0x1e0
[ 2082.085846][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2082.085846][   T73] 
[ 2082.087880][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2082.087880][   T73]      netdev_get_by_index+0x5e/0x80
[ 2082.087880][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2082.087880][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2082.087880][   T73]      ip6_route_add+0x1c/0x140
[ 2082.087880][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2082.087880][   T73]      addrconf_add_dev+0xe2/0x170
[ 2082.087880][   T73]      inet6_addr_add+0x12f/0xa40
[ 2082.087880][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2082.087880][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2082.087880][   T73]      netlink_rcv_skb+0x130/0x360
[ 2082.087880][   T73]      netlink_unicast+0x449/0x710
[ 2082.087880][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2082.087880][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2082.087880][   T73]      ___sys_sendmsg+0xee/0x170
[ 2082.087880][   T73]      __sys_sendmsg+0xcd/0x170
[ 2082.087880][   T73]      do_syscall_64+0xc6/0x1e0
[ 2082.087880][   T73] 
[ 2082.089875][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2082.089875][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2082.089875][   T73]      ipv6_find_idev+0x102/0x170
[ 2082.089875][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2082.089875][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2082.089875][   T73]      netlink_rcv_skb+0x130/0x360
[ 2082.089875][   T73]      netlink_unicast+0x449/0x710
[ 2082.089875][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2082.089875][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2082.089875][   T73]      ___sys_sendmsg+0xee/0x170
[ 2082.089875][   T73]      __sys_sendmsg+0xcd/0x170
[ 2082.089875][   T73]      do_syscall_64+0xc6/0x1e0
[ 2082.089875][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2082.089875][   T73] 
[ 2082.091449][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2082.091449][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2082.091449][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2082.091449][   T73]      ipv6_find_idev+0x102/0x170
[ 2082.091449][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2082.091449][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2082.091449][   T73]      netlink_rcv_skb+0x130/0x360
[ 2082.091449][   T73]      netlink_unicast+0x449/0x710
[ 2082.091449][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2082.091449][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2082.091449][   T73]      ___sys_sendmsg+0xee/0x170
[ 2082.091449][   T73]      __sys_sendmsg+0xcd/0x170
[ 2082.091449][   T73]      do_syscall_64+0xc6/0x1e0
[ 2082.091449][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2082.091449][   T73] 
[ 2082.093187][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2082.093482][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2082.093482][   T73]      netdev_get_by_index+0x5e/0x80
[ 2082.093482][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2082.093482][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2082.093482][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2082.093482][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2082.093482][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2082.093482][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2082.093482][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2082.093482][   T73]      addrconf_dad_begin+0x310/0x670
[ 2082.093482][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2082.093482][   T73]      process_one_work+0x84d/0x18a0
[ 2082.093482][   T73]      worker_thread+0x587/0xd30
[ 2082.093482][   T73]      kthread+0x28a/0x350
[ 2082.093482][   T73]      ret_from_fork+0x31/0x70
[ 2082.093482][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2082.093482][   T73] 
[ 2082.095423][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2082.095423][   T73]      netdev_get_by_index+0x5e/0x80
[ 2082.095423][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2082.095423][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2082.095423][   T73]      ip6_route_add+0x1c/0x140
[ 2082.095423][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2082.095423][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2082.095423][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2082.095423][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2082.095423][   T73]      netlink_rcv_skb+0x130/0x360
[ 2082.095423][   T73]      netlink_unicast+0x449/0x710
[ 2082.095423][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2082.095423][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2082.095423][   T73]      ___sys_sendmsg+0xee/0x170
[ 2082.095423][   T73]      __sys_sendmsg+0xcd/0x170
[ 2082.095423][   T73]      do_syscall_64+0xc6/0x1e0
[ 2082.095423][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2082.095423][   T73] 
[ 2082.098015][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2082.098015][   T73]      netdev_get_by_index+0x5e/0x80
[ 2082.098015][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2082.098015][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2082.098015][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2082.098015][   T73]      ipv6_add_addr+0x411/0x2000
[ 2082.098015][   T73]      inet6_addr_add+0x30e/0xa40
[ 2082.098015][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2082.098015][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2082.098015][   T73]      netlink_rcv_skb+0x130/0x360
[ 2082.098015][   T73]      netlink_unicast+0x449/0x710
[ 2082.098015][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2082.098015][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2082.098015][   T73]      ___sys_sendmsg+0xee/0x170
[ 2082.098015][   T73]      __sys_sendmsg+0xcd/0x170
[ 2082.098015][   T73]      do_syscall_64+0xc6/0x1e0
[ 2082.098015][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2082.098015][   T73] 
[ 2082.100085][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2082.100085][   T73]      netdev_get_by_index+0x5e/0x80
[ 2082.100085][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2082.100085][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2082.100085][   T73]      ip6_route_add+0x1c/0x140
[ 2082.100085][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2082.100085][   T73]      addrconf_add_dev+0xe2/0x170
[ 2082.100085][   T73]      inet6_addr_add+0x12f/0xa40
[ 2082.100085][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2082.100085][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2082.100085][   T73]      netlink_rcv_skb+0x130/0x360
[ 2082.100085][   T73]      netlink_unicast+0x449/0x710
[ 2082.100085][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2082.100085][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2082.100085][   T73]      ___sys_sendmsg+0xee/0x170
[ 2082.100085][   T73]      __sys_sendmsg+0xcd/0x170
[ 2082.100085][   T73]      do_syscall_64+0xc6/0x1e0
[ 2082.100085][   T73] 
[ 2082.102098][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2082.102098][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2082.102098][   T73]      ipv6_find_idev+0x102/0x170
[ 2082.102098][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2082.102098][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2082.102098][   T73]      netlink_rcv_skb+0x130/0x360
[ 2082.102098][   T73]      netlink_unicast+0x449/0x710
[ 2082.102098][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2082.102098][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2082.102098][   T73]      ___sys_sendmsg+0xee/0x170
[ 2082.102098][   T73]      __sys_sendmsg+0xcd/0x170
[ 2082.102098][   T73]      do_syscall_64+0xc6/0x1e0
[ 2082.102098][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2082.102098][   T73] 
[ 2082.103678][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2082.103678][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2082.103678][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2082.103678][   T73]      ipv6_find_idev+0x102/0x170
[ 2082.103678][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2082.103678][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2082.103678][   T73]      netlink_rcv_skb+0x130/0x360
[ 2082.103678][   T73]      netlink_unicast+0x449/0x710
[ 2082.103678][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2082.103678][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2082.103678][   T73]      ___sys_sendmsg+0xee/0x170
[ 2082.103678][   T73]      __sys_sendmsg+0xcd/0x170
[ 2082.103678][   T73]      do_syscall_64+0xc6/0x1e0
[ 2082.103678][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2082.103678][   T73] 
[ 2082.105425][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2082.105718][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2082.105718][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2082.105718][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2082.105718][   T73]      fib6_nh_init+0xa22/0x1580
[ 2082.105718][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2082.105718][   T73]      ip6_route_add+0x1c/0x140
[ 2082.105718][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2082.105718][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2082.105718][   T73]      netlink_rcv_skb+0x130/0x360
[ 2082.105718][   T73]      netlink_unicast+0x449/0x710
[ 2082.105718][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2082.105718][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2082.105718][   T73]      ___sys_sendmsg+0xee/0x170
[ 2082.105718][   T73]      __sys_sendmsg+0xcd/0x170
[ 2082.105718][   T73]      do_syscall_64+0xc6/0x1e0
[ 2082.105718][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2082.105718][   T73] 
[ 2082.107868][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2082.107868][   T73]      dst_init+0x84/0x4a0
[ 2082.107868][   T73]      dst_alloc+0x97/0x150
[ 2082.107868][   T73]      ip6_dst_alloc+0x23/0x90
[ 2082.107868][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2082.107868][   T73]      ip6_pol_route+0x56f/0x840
[ 2082.107868][   T73]      fib6_rule_lookup+0x456/0x630
[ 2082.107868][   T73]      ip6_route_input+0x59c/0xa50
[ 2082.107868][   T73]      ipv6_rcv+0x397/0x810
[ 2082.107868][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2082.107868][   T73]      process_backlog+0x101/0x620
[ 2082.107868][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2082.107868][   T73]      net_rx_action+0x495/0xbe0
[ 2082.107868][   T73]      __do_softirq+0x1b5/0x7f6
[ 2082.107868][   T73] 
[ 2082.109750][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2082.109750][   T73]      netdev_get_by_index+0x5e/0x80
[ 2082.109750][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2082.109750][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2082.109750][   T73]      ip6_route_add+0x1c/0x140
[ 2082.109750][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2082.109750][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2082.109750][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2082.109750][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2082.109750][   T73]      netlink_rcv_skb+0x130/0x360
[ 2082.109750][   T73]      netlink_unicast+0x449/0x710
[ 2082.109750][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2082.109750][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2082.109750][   T73]      ___sys_sendmsg+0xee/0x170
[ 2082.109750][   T73]      __sys_sendmsg+0xcd/0x170
[ 2082.109750][   T73]      do_syscall_64+0xc6/0x1e0
[ 2082.109750][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2082.109750][   T73] 
[ 2082.112074][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2082.112074][   T73]      netdev_get_by_index+0x5e/0x80
[ 2082.112074][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2082.112074][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2082.112074][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2082.112074][   T73]      ipv6_add_addr+0x411/0x2000
[ 2082.112074][   T73]      inet6_addr_add+0x30e/0xa40
[ 2082.112074][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2082.112074][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2082.112074][   T73]      netlink_rcv_skb+0x130/0x360
[ 2082.112074][   T73]      netlink_unicast+0x449/0x710
[ 2082.112074][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2082.112074][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2082.112074][   T73]      ___sys_sendmsg+0xee/0x170
[ 2082.112074][   T73]      __sys_sendmsg+0xcd/0x170
[ 2082.112074][   T73]      do_syscall_64+0xc6/0x1e0
[ 2082.112074][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2082.112074][   T73] 
[ 2082.114316][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2082.114316][   T73]      netdev_get_by_index+0x5e/0x80
[ 2082.114316][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2082.114316][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2082.114316][   T73]      ip6_route_add+0x1c/0x140
[ 2082.114316][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2082.114316][   T73]      addrconf_add_dev+0xe2/0x170
[ 2082.114316][   T73]      inet6_addr_add+0x12f/0xa40
[ 2082.114316][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2082.114316][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2082.114316][   T73]      netlink_rcv_skb+0x130/0x360
[ 2082.114316][   T73]      netlink_unicast+0x449/0x710
[ 2082.114316][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2082.114316][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2082.114316][   T73]      ___sys_sendmsg+0xee/0x170
[ 2082.114316][   T73]      __sys_sendmsg+0xcd/0x170
[ 2082.114316][   T73]      do_syscall_64+0xc6/0x1e0
[ 2082.114316][   T73] 
[ 2082.117072][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2082.117072][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2082.117072][   T73]      ipv6_find_idev+0x102/0x170
[ 2082.117072][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2082.117072][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2082.117072][   T73]      netlink_rcv_skb+0x130/0x360
[ 2082.117072][   T73]      netlink_unicast+0x449/0x710
[ 2082.117072][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2082.117072][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2082.117072][   T73]      ___sys_sendmsg+0xee/0x170
[ 2082.117072][   T73]      __sys_sendmsg+0xcd/0x170
[ 2082.117072][   T73]      do_syscall_64+0xc6/0x1e0
[ 2082.117072][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2082.117072][   T73] 
[ 2082.118843][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2082.118843][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2082.118843][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2082.118843][   T73]      ipv6_find_idev+0x102/0x170
[ 2082.118843][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2082.118843][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2082.118843][   T73]      netlink_rcv_skb+0x130/0x360
[ 2082.118843][   T73]      netlink_unicast+0x449/0x710
[ 2082.118843][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2082.118843][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2082.118843][   T73]      ___sys_sendmsg+0xee/0x170
[ 2082.118843][   T73]      __sys_sendmsg+0xcd/0x170
[ 2082.118843][   T73]      do_syscall_64+0xc6/0x1e0
[ 2082.118843][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2082.118843][   T73] 
[ 2082.120857][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2082.121142][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2082.121142][   T73]      netdev_get_by_index+0x5e/0x80
[ 2082.121142][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2082.121142][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2082.121142][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2082.121142][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2082.121142][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2082.121142][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2082.121142][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2082.121142][   T73]      addrconf_dad_begin+0x310/0x670
[ 2082.121142][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2082.121142][   T73]      process_one_work+0x84d/0x18a0
[ 2082.121142][   T73]      worker_thread+0x587/0xd30
[ 2082.121142][   T73]      kthread+0x28a/0x350
[ 2082.121142][   T73]      ret_from_fork+0x31/0x70
[ 2082.121142][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2082.121142][   T73] 
[ 2082.123343][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2082.123343][   T73]      netdev_get_by_index+0x5e/0x80
[ 2082.123343][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2082.123343][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2082.123343][   T73]      ip6_route_add+0x1c/0x140
[ 2082.123343][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2082.123343][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2082.123343][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2082.123343][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2082.123343][   T73]      netlink_rcv_skb+0x130/0x360
[ 2082.123343][   T73]      netlink_unicast+0x449/0x710
[ 2082.123343][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2082.123343][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2082.123343][   T73]      ___sys_sendmsg+0xee/0x170
[ 2082.123343][   T73]      __sys_sendmsg+0xcd/0x170
[ 2082.123343][   T73]      do_syscall_64+0xc6/0x1e0
[ 2082.123343][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2082.123343][   T73] 
[ 2082.125568][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2082.125568][   T73]      netdev_get_by_index+0x5e/0x80
[ 2082.125568][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2082.125568][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2082.125568][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2082.125568][   T73]      ipv6_add_addr+0x411/0x2000
[ 2082.125568][   T73]      inet6_addr_add+0x30e/0xa40
[ 2082.125568][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2082.125568][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2082.125568][   T73]      netlink_rcv_skb+0x130/0x360
[ 2082.125568][   T73]      netlink_unicast+0x449/0x710
[ 2082.125568][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2082.125568][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2082.125568][   T73]      ___sys_sendmsg+0xee/0x170
[ 2082.125568][   T73]      __sys_sendmsg+0xcd/0x170
[ 2082.125568][   T73]      do_syscall_64+0xc6/0x1e0
[ 2082.125568][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2082.125568][   T73] 
[ 2082.127931][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2082.127931][   T73]      netdev_get_by_index+0x5e/0x80
[ 2082.127931][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2082.127931][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2082.127931][   T73]      ip6_route_add+0x1c/0x140
[ 2082.127931][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2082.127931][   T73]      addrconf_add_dev+0xe2/0x170
[ 2082.127931][   T73]      inet6_addr_add+0x12f/0xa40
[ 2082.127931][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2082.127931][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2082.127931][   T73]      netlink_rcv_skb+0x130/0x360
[ 2082.127931][   T73]      netlink_unicast+0x449/0x710
[ 2082.127931][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2082.127931][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2082.127931][   T73]      ___sys_sendmsg+0xee/0x170
[ 2082.127931][   T73]      __sys_sendmsg+0xcd/0x170
[ 2082.127931][   T73]      do_syscall_64+0xc6/0x1e0
[ 2082.127931][   T73] 
[ 2082.130198][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2082.130198][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2082.130198][   T73]      ipv6_find_idev+0x102/0x170
[ 2082.130198][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2082.130198][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2082.130198][   T73]      netlink_rcv_skb+0x130/0x360
[ 2082.130198][   T73]      netlink_unicast+0x449/0x710
[ 2082.130198][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2082.130198][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2082.130198][   T73]      ___sys_sendmsg+0xee/0x170
[ 2082.130198][   T73]      __sys_sendmsg+0xcd/0x170
[ 2082.130198][   T73]      do_syscall_64+0xc6/0x1e0
[ 2082.130198][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2082.130198][   T73] 
[ 2082.131972][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2082.131972][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2082.131972][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2082.131972][   T73]      ipv6_find_idev+0x102/0x170
[ 2082.131972][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2082.131972][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2082.131972][   T73]      netlink_rcv_skb+0x130/0x360
[ 2082.131972][   T73]      netlink_unicast+0x449/0x710
[ 2082.131972][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2082.131972][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2082.131972][   T73]      ___sys_sendmsg+0xee/0x170
[ 2082.131972][   T73]      __sys_sendmsg+0xcd/0x170
[ 2082.131972][   T73]      do_syscall_64+0xc6/0x1e0
[ 2082.131972][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2082.131972][   T73] 
[ 2092.375702][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2092.376192][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2092.376192][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2092.376192][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2092.376192][   T73]      fib6_nh_init+0xa22/0x1580
[ 2092.376192][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2092.376192][   T73]      ip6_route_add+0x1c/0x140
[ 2092.376192][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2092.376192][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2092.376192][   T73]      netlink_rcv_skb+0x130/0x360
[ 2092.376192][   T73]      netlink_unicast+0x449/0x710
[ 2092.376192][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2092.376192][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2092.376192][   T73]      ___sys_sendmsg+0xee/0x170
[ 2092.376192][   T73]      __sys_sendmsg+0xcd/0x170
[ 2092.376192][   T73]      do_syscall_64+0xc6/0x1e0
[ 2092.376192][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2092.376192][   T73] 
[ 2092.378306][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2092.378306][   T73]      dst_init+0x84/0x4a0
[ 2092.378306][   T73]      dst_alloc+0x97/0x150
[ 2092.378306][   T73]      ip6_dst_alloc+0x23/0x90
[ 2092.378306][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2092.378306][   T73]      ip6_pol_route+0x56f/0x840
[ 2092.378306][   T73]      fib6_rule_lookup+0x456/0x630
[ 2092.378306][   T73]      ip6_route_input+0x59c/0xa50
[ 2092.378306][   T73]      ipv6_rcv+0x397/0x810
[ 2092.378306][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2092.378306][   T73]      process_backlog+0x101/0x620
[ 2092.378306][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2092.378306][   T73]      net_rx_action+0x495/0xbe0
[ 2092.378306][   T73]      __do_softirq+0x1b5/0x7f6
[ 2092.378306][   T73] 
[ 2092.380136][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2092.380136][   T73]      netdev_get_by_index+0x5e/0x80
[ 2092.380136][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2092.380136][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2092.380136][   T73]      ip6_route_add+0x1c/0x140
[ 2092.380136][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2092.380136][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2092.380136][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2092.380136][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2092.380136][   T73]      netlink_rcv_skb+0x130/0x360
[ 2092.380136][   T73]      netlink_unicast+0x449/0x710
[ 2092.380136][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2092.380136][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2092.380136][   T73]      ___sys_sendmsg+0xee/0x170
[ 2092.380136][   T73]      __sys_sendmsg+0xcd/0x170
[ 2092.380136][   T73]      do_syscall_64+0xc6/0x1e0
[ 2092.380136][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2092.380136][   T73] 
[ 2092.382380][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2092.382380][   T73]      netdev_get_by_index+0x5e/0x80
[ 2092.382380][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2092.382380][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2092.382380][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2092.382380][   T73]      ipv6_add_addr+0x411/0x2000
[ 2092.382380][   T73]      inet6_addr_add+0x30e/0xa40
[ 2092.382380][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2092.382380][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2092.382380][   T73]      netlink_rcv_skb+0x130/0x360
[ 2092.382380][   T73]      netlink_unicast+0x449/0x710
[ 2092.382380][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2092.382380][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2092.382380][   T73]      ___sys_sendmsg+0xee/0x170
[ 2092.382380][   T73]      __sys_sendmsg+0xcd/0x170
[ 2092.382380][   T73]      do_syscall_64+0xc6/0x1e0
[ 2092.382380][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2092.382380][   T73] 
[ 2092.384638][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2092.384638][   T73]      netdev_get_by_index+0x5e/0x80
[ 2092.384638][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2092.384638][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2092.384638][   T73]      ip6_route_add+0x1c/0x140
[ 2092.384638][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2092.384638][   T73]      addrconf_add_dev+0xe2/0x170
[ 2092.384638][   T73]      inet6_addr_add+0x12f/0xa40
[ 2092.384638][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2092.384638][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2092.384638][   T73]      netlink_rcv_skb+0x130/0x360
[ 2092.384638][   T73]      netlink_unicast+0x449/0x710
[ 2092.384638][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2092.384638][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2092.384638][   T73]      ___sys_sendmsg+0xee/0x170
[ 2092.384638][   T73]      __sys_sendmsg+0xcd/0x170
[ 2092.384638][   T73]      do_syscall_64+0xc6/0x1e0
[ 2092.384638][   T73] 
[ 2092.386718][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2092.386718][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2092.386718][   T73]      ipv6_find_idev+0x102/0x170
[ 2092.386718][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2092.386718][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2092.386718][   T73]      netlink_rcv_skb+0x130/0x360
[ 2092.386718][   T73]      netlink_unicast+0x449/0x710
[ 2092.386718][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2092.386718][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2092.386718][   T73]      ___sys_sendmsg+0xee/0x170
[ 2092.386718][   T73]      __sys_sendmsg+0xcd/0x170
[ 2092.386718][   T73]      do_syscall_64+0xc6/0x1e0
[ 2092.386718][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2092.386718][   T73] 
[ 2092.388291][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2092.388291][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2092.388291][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2092.388291][   T73]      ipv6_find_idev+0x102/0x170
[ 2092.388291][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2092.388291][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2092.388291][   T73]      netlink_rcv_skb+0x130/0x360
[ 2092.388291][   T73]      netlink_unicast+0x449/0x710
[ 2092.388291][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2092.388291][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2092.388291][   T73]      ___sys_sendmsg+0xee/0x170
[ 2092.388291][   T73]      __sys_sendmsg+0xcd/0x170
[ 2092.388291][   T73]      do_syscall_64+0xc6/0x1e0
[ 2092.388291][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2092.388291][   T73] 
[ 2092.390032][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2092.390328][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2092.390328][   T73]      netdev_get_by_index+0x5e/0x80
[ 2092.390328][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2092.390328][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2092.390328][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2092.390328][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2092.390328][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2092.390328][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2092.390328][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2092.390328][   T73]      addrconf_dad_begin+0x310/0x670
[ 2092.390328][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2092.390328][   T73]      process_one_work+0x84d/0x18a0
[ 2092.390328][   T73]      worker_thread+0x587/0xd30
[ 2092.390328][   T73]      kthread+0x28a/0x350
[ 2092.390328][   T73]      ret_from_fork+0x31/0x70
[ 2092.390328][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2092.390328][   T73] 
[ 2092.392294][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2092.392294][   T73]      netdev_get_by_index+0x5e/0x80
[ 2092.392294][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2092.392294][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2092.392294][   T73]      ip6_route_add+0x1c/0x140
[ 2092.392294][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2092.392294][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2092.392294][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2092.392294][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2092.392294][   T73]      netlink_rcv_skb+0x130/0x360
[ 2092.392294][   T73]      netlink_unicast+0x449/0x710
[ 2092.392294][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2092.392294][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2092.392294][   T73]      ___sys_sendmsg+0xee/0x170
[ 2092.392294][   T73]      __sys_sendmsg+0xcd/0x170
[ 2092.392294][   T73]      do_syscall_64+0xc6/0x1e0
[ 2092.392294][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2092.392294][   T73] 
[ 2092.394879][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2092.394879][   T73]      netdev_get_by_index+0x5e/0x80
[ 2092.394879][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2092.394879][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2092.394879][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2092.394879][   T73]      ipv6_add_addr+0x411/0x2000
[ 2092.394879][   T73]      inet6_addr_add+0x30e/0xa40
[ 2092.394879][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2092.394879][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2092.394879][   T73]      netlink_rcv_skb+0x130/0x360
[ 2092.394879][   T73]      netlink_unicast+0x449/0x710
[ 2092.394879][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2092.394879][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2092.394879][   T73]      ___sys_sendmsg+0xee/0x170
[ 2092.394879][   T73]      __sys_sendmsg+0xcd/0x170
[ 2092.394879][   T73]      do_syscall_64+0xc6/0x1e0
[ 2092.394879][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2092.394879][   T73] 
[ 2092.397337][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2092.397337][   T73]      netdev_get_by_index+0x5e/0x80
[ 2092.397337][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2092.397337][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2092.397337][   T73]      ip6_route_add+0x1c/0x140
[ 2092.397337][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2092.397337][   T73]      addrconf_add_dev+0xe2/0x170
[ 2092.397337][   T73]      inet6_addr_add+0x12f/0xa40
[ 2092.397337][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2092.397337][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2092.397337][   T73]      netlink_rcv_skb+0x130/0x360
[ 2092.397337][   T73]      netlink_unicast+0x449/0x710
[ 2092.397337][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2092.397337][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2092.397337][   T73]      ___sys_sendmsg+0xee/0x170
[ 2092.397337][   T73]      __sys_sendmsg+0xcd/0x170
[ 2092.397337][   T73]      do_syscall_64+0xc6/0x1e0
[ 2092.397337][   T73] 
[ 2092.399344][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2092.399344][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2092.399344][   T73]      ipv6_find_idev+0x102/0x170
[ 2092.399344][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2092.399344][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2092.399344][   T73]      netlink_rcv_skb+0x130/0x360
[ 2092.399344][   T73]      netlink_unicast+0x449/0x710
[ 2092.399344][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2092.399344][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2092.399344][   T73]      ___sys_sendmsg+0xee/0x170
[ 2092.399344][   T73]      __sys_sendmsg+0xcd/0x170
[ 2092.399344][   T73]      do_syscall_64+0xc6/0x1e0
[ 2092.399344][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2092.399344][   T73] 
[ 2092.401334][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2092.401334][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2092.401334][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2092.401334][   T73]      ipv6_find_idev+0x102/0x170
[ 2092.401334][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2092.401334][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2092.401334][   T73]      netlink_rcv_skb+0x130/0x360
[ 2092.401334][   T73]      netlink_unicast+0x449/0x710
[ 2092.401334][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2092.401334][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2092.401334][   T73]      ___sys_sendmsg+0xee/0x170
[ 2092.401334][   T73]      __sys_sendmsg+0xcd/0x170
[ 2092.401334][   T73]      do_syscall_64+0xc6/0x1e0
[ 2092.401334][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2092.401334][   T73] 
[ 2092.403050][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2092.403336][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2092.403336][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2092.403336][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2092.403336][   T73]      fib6_nh_init+0xa22/0x1580
[ 2092.403336][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2092.403336][   T73]      ip6_route_add+0x1c/0x140
[ 2092.403336][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2092.403336][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2092.403336][   T73]      netlink_rcv_skb+0x130/0x360
[ 2092.403336][   T73]      netlink_unicast+0x449/0x710
[ 2092.403336][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2092.403336][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2092.403336][   T73]      ___sys_sendmsg+0xee/0x170
[ 2092.403336][   T73]      __sys_sendmsg+0xcd/0x170
[ 2092.403336][   T73]      do_syscall_64+0xc6/0x1e0
[ 2092.403336][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2092.403336][   T73] 
[ 2092.405400][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2092.405400][   T73]      dst_init+0x84/0x4a0
[ 2092.405400][   T73]      dst_alloc+0x97/0x150
[ 2092.405400][   T73]      ip6_dst_alloc+0x23/0x90
[ 2092.405400][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2092.405400][   T73]      ip6_pol_route+0x56f/0x840
[ 2092.405400][   T73]      fib6_rule_lookup+0x456/0x630
[ 2092.405400][   T73]      ip6_route_input+0x59c/0xa50
[ 2092.405400][   T73]      ipv6_rcv+0x397/0x810
[ 2092.405400][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2092.405400][   T73]      process_backlog+0x101/0x620
[ 2092.405400][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2092.405400][   T73]      net_rx_action+0x495/0xbe0
[ 2092.405400][   T73]      __do_softirq+0x1b5/0x7f6
[ 2092.405400][   T73] 
[ 2092.407247][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2092.407247][   T73]      netdev_get_by_index+0x5e/0x80
[ 2092.407247][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2092.407247][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2092.407247][   T73]      ip6_route_add+0x1c/0x140
[ 2092.407247][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2092.407247][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2092.407247][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2092.407247][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2092.407247][   T73]      netlink_rcv_skb+0x130/0x360
[ 2092.407247][   T73]      netlink_unicast+0x449/0x710
[ 2092.407247][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2092.407247][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2092.407247][   T73]      ___sys_sendmsg+0xee/0x170
[ 2092.407247][   T73]      __sys_sendmsg+0xcd/0x170
[ 2092.407247][   T73]      do_syscall_64+0xc6/0x1e0
[ 2092.407247][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2092.407247][   T73] 
[ 2092.409585][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2092.409585][   T73]      netdev_get_by_index+0x5e/0x80
[ 2092.409585][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2092.409585][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2092.409585][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2092.409585][   T73]      ipv6_add_addr+0x411/0x2000
[ 2092.409585][   T73]      inet6_addr_add+0x30e/0xa40
[ 2092.409585][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2092.409585][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2092.409585][   T73]      netlink_rcv_skb+0x130/0x360
[ 2092.409585][   T73]      netlink_unicast+0x449/0x710
[ 2092.409585][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2092.409585][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2092.409585][   T73]      ___sys_sendmsg+0xee/0x170
[ 2092.409585][   T73]      __sys_sendmsg+0xcd/0x170
[ 2092.409585][   T73]      do_syscall_64+0xc6/0x1e0
[ 2092.409585][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2092.409585][   T73] 
[ 2092.411857][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2092.411857][   T73]      netdev_get_by_index+0x5e/0x80
[ 2092.411857][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2092.411857][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2092.411857][   T73]      ip6_route_add+0x1c/0x140
[ 2092.411857][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2092.411857][   T73]      addrconf_add_dev+0xe2/0x170
[ 2092.411857][   T73]      inet6_addr_add+0x12f/0xa40
[ 2092.411857][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2092.411857][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2092.411857][   T73]      netlink_rcv_skb+0x130/0x360
[ 2092.411857][   T73]      netlink_unicast+0x449/0x710
[ 2092.411857][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2092.411857][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2092.411857][   T73]      ___sys_sendmsg+0xee/0x170
[ 2092.411857][   T73]      __sys_sendmsg+0xcd/0x170
[ 2092.411857][   T73]      do_syscall_64+0xc6/0x1e0
[ 2092.411857][   T73] 
[ 2092.414057][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2092.414057][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2092.414057][   T73]      ipv6_find_idev+0x102/0x170
[ 2092.414057][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2092.414057][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2092.414057][   T73]      netlink_rcv_skb+0x130/0x360
[ 2092.414057][   T73]      netlink_unicast+0x449/0x710
[ 2092.414057][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2092.414057][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2092.414057][   T73]      ___sys_sendmsg+0xee/0x170
[ 2092.414057][   T73]      __sys_sendmsg+0xcd/0x170
[ 2092.414057][   T73]      do_syscall_64+0xc6/0x1e0
[ 2092.414057][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2092.414057][   T73] 
[ 2092.415809][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2092.415809][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2092.415809][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2092.415809][   T73]      ipv6_find_idev+0x102/0x170
[ 2092.415809][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2092.415809][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2092.415809][   T73]      netlink_rcv_skb+0x130/0x360
[ 2092.415809][   T73]      netlink_unicast+0x449/0x710
[ 2092.415809][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2092.415809][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2092.415809][   T73]      ___sys_sendmsg+0xee/0x170
[ 2092.415809][   T73]      __sys_sendmsg+0xcd/0x170
[ 2092.415809][   T73]      do_syscall_64+0xc6/0x1e0
[ 2092.415809][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2092.415809][   T73] 
[ 2092.417727][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2092.418023][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2092.418023][   T73]      netdev_get_by_index+0x5e/0x80
[ 2092.418023][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2092.418023][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2092.418023][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2092.418023][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2092.418023][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2092.418023][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2092.418023][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2092.418023][   T73]      addrconf_dad_begin+0x310/0x670
[ 2092.418023][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2092.418023][   T73]      process_one_work+0x84d/0x18a0
[ 2092.418023][   T73]      worker_thread+0x587/0xd30
[ 2092.418023][   T73]      kthread+0x28a/0x350
[ 2092.418023][   T73]      ret_from_fork+0x31/0x70
[ 2092.418023][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2092.418023][   T73] 
[ 2092.420276][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2092.420276][   T73]      netdev_get_by_index+0x5e/0x80
[ 2092.420276][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2092.420276][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2092.420276][   T73]      ip6_route_add+0x1c/0x140
[ 2092.420276][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2092.420276][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2092.420276][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2092.420276][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2092.420276][   T73]      netlink_rcv_skb+0x130/0x360
[ 2092.420276][   T73]      netlink_unicast+0x449/0x710
[ 2092.420276][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2092.420276][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2092.420276][   T73]      ___sys_sendmsg+0xee/0x170
[ 2092.420276][   T73]      __sys_sendmsg+0xcd/0x170
[ 2092.420276][   T73]      do_syscall_64+0xc6/0x1e0
[ 2092.420276][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2092.420276][   T73] 
[ 2092.422542][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2092.422542][   T73]      netdev_get_by_index+0x5e/0x80
[ 2092.422542][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2092.422542][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2092.422542][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2092.422542][   T73]      ipv6_add_addr+0x411/0x2000
[ 2092.422542][   T73]      inet6_addr_add+0x30e/0xa40
[ 2092.422542][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2092.422542][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2092.422542][   T73]      netlink_rcv_skb+0x130/0x360
[ 2092.422542][   T73]      netlink_unicast+0x449/0x710
[ 2092.422542][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2092.422542][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2092.422542][   T73]      ___sys_sendmsg+0xee/0x170
[ 2092.422542][   T73]      __sys_sendmsg+0xcd/0x170
[ 2092.422542][   T73]      do_syscall_64+0xc6/0x1e0
[ 2092.422542][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2092.422542][   T73] 
[ 2092.424838][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2092.424838][   T73]      netdev_get_by_index+0x5e/0x80
[ 2092.424838][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2092.424838][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2092.424838][   T73]      ip6_route_add+0x1c/0x140
[ 2092.424838][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2092.424838][   T73]      addrconf_add_dev+0xe2/0x170
[ 2092.424838][   T73]      inet6_addr_add+0x12f/0xa40
[ 2092.424838][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2092.424838][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2092.424838][   T73]      netlink_rcv_skb+0x130/0x360
[ 2092.424838][   T73]      netlink_unicast+0x449/0x710
[ 2092.424838][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2092.424838][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2092.424838][   T73]      ___sys_sendmsg+0xee/0x170
[ 2092.424838][   T73]      __sys_sendmsg+0xcd/0x170
[ 2092.424838][   T73]      do_syscall_64+0xc6/0x1e0
[ 2092.424838][   T73] 
[ 2092.426898][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2092.426898][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2092.426898][   T73]      ipv6_find_idev+0x102/0x170
[ 2092.426898][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2092.426898][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2092.426898][   T73]      netlink_rcv_skb+0x130/0x360
[ 2092.426898][   T73]      netlink_unicast+0x449/0x710
[ 2092.426898][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2092.426898][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2092.426898][   T73]      ___sys_sendmsg+0xee/0x170
[ 2092.426898][   T73]      __sys_sendmsg+0xcd/0x170
[ 2092.426898][   T73]      do_syscall_64+0xc6/0x1e0
[ 2092.426898][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2092.426898][   T73] 
[ 2092.428721][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2092.428721][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2092.428721][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2092.428721][   T73]      ipv6_find_idev+0x102/0x170
[ 2092.428721][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2092.428721][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2092.428721][   T73]      netlink_rcv_skb+0x130/0x360
[ 2092.428721][   T73]      netlink_unicast+0x449/0x710
[ 2092.428721][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2092.428721][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2092.428721][   T73]      ___sys_sendmsg+0xee/0x170
[ 2092.428721][   T73]      __sys_sendmsg+0xcd/0x170
[ 2092.428721][   T73]      do_syscall_64+0xc6/0x1e0
[ 2092.428721][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2092.428721][   T73] 
[ 2102.551758][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2102.552253][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2102.552253][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2102.552253][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2102.552253][   T73]      fib6_nh_init+0xa22/0x1580
[ 2102.552253][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2102.552253][   T73]      ip6_route_add+0x1c/0x140
[ 2102.552253][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2102.552253][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2102.552253][   T73]      netlink_rcv_skb+0x130/0x360
[ 2102.552253][   T73]      netlink_unicast+0x449/0x710
[ 2102.552253][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2102.552253][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2102.552253][   T73]      ___sys_sendmsg+0xee/0x170
[ 2102.552253][   T73]      __sys_sendmsg+0xcd/0x170
[ 2102.552253][   T73]      do_syscall_64+0xc6/0x1e0
[ 2102.552253][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2102.552253][   T73] 
[ 2102.554173][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2102.554173][   T73]      dst_init+0x84/0x4a0
[ 2102.554173][   T73]      dst_alloc+0x97/0x150
[ 2102.554173][   T73]      ip6_dst_alloc+0x23/0x90
[ 2102.554173][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2102.554173][   T73]      ip6_pol_route+0x56f/0x840
[ 2102.554173][   T73]      fib6_rule_lookup+0x456/0x630
[ 2102.554173][   T73]      ip6_route_input+0x59c/0xa50
[ 2102.554173][   T73]      ipv6_rcv+0x397/0x810
[ 2102.554173][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2102.554173][   T73]      process_backlog+0x101/0x620
[ 2102.554173][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2102.554173][   T73]      net_rx_action+0x495/0xbe0
[ 2102.554173][   T73]      __do_softirq+0x1b5/0x7f6
[ 2102.554173][   T73] 
[ 2102.555847][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2102.555847][   T73]      netdev_get_by_index+0x5e/0x80
[ 2102.555847][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2102.555847][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2102.555847][   T73]      ip6_route_add+0x1c/0x140
[ 2102.555847][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2102.555847][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2102.555847][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2102.555847][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2102.555847][   T73]      netlink_rcv_skb+0x130/0x360
[ 2102.555847][   T73]      netlink_unicast+0x449/0x710
[ 2102.555847][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2102.555847][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2102.555847][   T73]      ___sys_sendmsg+0xee/0x170
[ 2102.555847][   T73]      __sys_sendmsg+0xcd/0x170
[ 2102.555847][   T73]      do_syscall_64+0xc6/0x1e0
[ 2102.555847][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2102.555847][   T73] 
[ 2102.558314][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2102.558314][   T73]      netdev_get_by_index+0x5e/0x80
[ 2102.558314][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2102.558314][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2102.558314][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2102.558314][   T73]      ipv6_add_addr+0x411/0x2000
[ 2102.558314][   T73]      inet6_addr_add+0x30e/0xa40
[ 2102.558314][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2102.558314][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2102.558314][   T73]      netlink_rcv_skb+0x130/0x360
[ 2102.558314][   T73]      netlink_unicast+0x449/0x710
[ 2102.558314][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2102.558314][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2102.558314][   T73]      ___sys_sendmsg+0xee/0x170
[ 2102.558314][   T73]      __sys_sendmsg+0xcd/0x170
[ 2102.558314][   T73]      do_syscall_64+0xc6/0x1e0
[ 2102.558314][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2102.558314][   T73] 
[ 2102.560375][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2102.560375][   T73]      netdev_get_by_index+0x5e/0x80
[ 2102.560375][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2102.560375][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2102.560375][   T73]      ip6_route_add+0x1c/0x140
[ 2102.560375][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2102.560375][   T73]      addrconf_add_dev+0xe2/0x170
[ 2102.560375][   T73]      inet6_addr_add+0x12f/0xa40
[ 2102.560375][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2102.560375][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2102.560375][   T73]      netlink_rcv_skb+0x130/0x360
[ 2102.560375][   T73]      netlink_unicast+0x449/0x710
[ 2102.560375][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2102.560375][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2102.560375][   T73]      ___sys_sendmsg+0xee/0x170
[ 2102.560375][   T73]      __sys_sendmsg+0xcd/0x170
[ 2102.560375][   T73]      do_syscall_64+0xc6/0x1e0
[ 2102.560375][   T73] 
[ 2102.562366][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2102.562366][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2102.562366][   T73]      ipv6_find_idev+0x102/0x170
[ 2102.562366][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2102.562366][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2102.562366][   T73]      netlink_rcv_skb+0x130/0x360
[ 2102.562366][   T73]      netlink_unicast+0x449/0x710
[ 2102.562366][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2102.562366][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2102.562366][   T73]      ___sys_sendmsg+0xee/0x170
[ 2102.562366][   T73]      __sys_sendmsg+0xcd/0x170
[ 2102.562366][   T73]      do_syscall_64+0xc6/0x1e0
[ 2102.562366][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2102.562366][   T73] 
[ 2102.563934][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2102.563934][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2102.563934][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2102.563934][   T73]      ipv6_find_idev+0x102/0x170
[ 2102.563934][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2102.563934][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2102.563934][   T73]      netlink_rcv_skb+0x130/0x360
[ 2102.563934][   T73]      netlink_unicast+0x449/0x710
[ 2102.563934][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2102.563934][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2102.563934][   T73]      ___sys_sendmsg+0xee/0x170
[ 2102.563934][   T73]      __sys_sendmsg+0xcd/0x170
[ 2102.563934][   T73]      do_syscall_64+0xc6/0x1e0
[ 2102.563934][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2102.563934][   T73] 
[ 2102.565688][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2102.566023][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2102.566023][   T73]      netdev_get_by_index+0x5e/0x80
[ 2102.566023][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2102.566023][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2102.566023][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2102.566023][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2102.566023][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2102.566023][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2102.566023][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2102.566023][   T73]      addrconf_dad_begin+0x310/0x670
[ 2102.566023][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2102.566023][   T73]      process_one_work+0x84d/0x18a0
[ 2102.566023][   T73]      worker_thread+0x587/0xd30
[ 2102.566023][   T73]      kthread+0x28a/0x350
[ 2102.566023][   T73]      ret_from_fork+0x31/0x70
[ 2102.566023][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2102.566023][   T73] 
[ 2102.568139][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2102.568139][   T73]      netdev_get_by_index+0x5e/0x80
[ 2102.568139][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2102.568139][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2102.568139][   T73]      ip6_route_add+0x1c/0x140
[ 2102.568139][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2102.568139][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2102.568139][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2102.568139][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2102.568139][   T73]      netlink_rcv_skb+0x130/0x360
[ 2102.568139][   T73]      netlink_unicast+0x449/0x710
[ 2102.568139][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2102.568139][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2102.568139][   T73]      ___sys_sendmsg+0xee/0x170
[ 2102.568139][   T73]      __sys_sendmsg+0xcd/0x170
[ 2102.568139][   T73]      do_syscall_64+0xc6/0x1e0
[ 2102.568139][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2102.568139][   T73] 
[ 2102.570351][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2102.570351][   T73]      netdev_get_by_index+0x5e/0x80
[ 2102.570351][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2102.570351][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2102.570351][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2102.570351][   T73]      ipv6_add_addr+0x411/0x2000
[ 2102.570351][   T73]      inet6_addr_add+0x30e/0xa40
[ 2102.570351][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2102.570351][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2102.570351][   T73]      netlink_rcv_skb+0x130/0x360
[ 2102.570351][   T73]      netlink_unicast+0x449/0x710
[ 2102.570351][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2102.570351][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2102.570351][   T73]      ___sys_sendmsg+0xee/0x170
[ 2102.570351][   T73]      __sys_sendmsg+0xcd/0x170
[ 2102.570351][   T73]      do_syscall_64+0xc6/0x1e0
[ 2102.570351][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2102.570351][   T73] 
[ 2102.572555][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2102.572555][   T73]      netdev_get_by_index+0x5e/0x80
[ 2102.572555][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2102.572555][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2102.572555][   T73]      ip6_route_add+0x1c/0x140
[ 2102.572555][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2102.572555][   T73]      addrconf_add_dev+0xe2/0x170
[ 2102.572555][   T73]      inet6_addr_add+0x12f/0xa40
[ 2102.572555][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2102.572555][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2102.572555][   T73]      netlink_rcv_skb+0x130/0x360
[ 2102.572555][   T73]      netlink_unicast+0x449/0x710
[ 2102.572555][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2102.572555][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2102.572555][   T73]      ___sys_sendmsg+0xee/0x170
[ 2102.572555][   T73]      __sys_sendmsg+0xcd/0x170
[ 2102.572555][   T73]      do_syscall_64+0xc6/0x1e0
[ 2102.572555][   T73] 
[ 2102.574721][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2102.574721][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2102.574721][   T73]      ipv6_find_idev+0x102/0x170
[ 2102.574721][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2102.574721][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2102.574721][   T73]      netlink_rcv_skb+0x130/0x360
[ 2102.574721][   T73]      netlink_unicast+0x449/0x710
[ 2102.574721][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2102.574721][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2102.574721][   T73]      ___sys_sendmsg+0xee/0x170
[ 2102.574721][   T73]      __sys_sendmsg+0xcd/0x170
[ 2102.574721][   T73]      do_syscall_64+0xc6/0x1e0
[ 2102.574721][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2102.574721][   T73] 
[ 2102.576320][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2102.576320][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2102.576320][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2102.576320][   T73]      ipv6_find_idev+0x102/0x170
[ 2102.576320][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2102.576320][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2102.576320][   T73]      netlink_rcv_skb+0x130/0x360
[ 2102.576320][   T73]      netlink_unicast+0x449/0x710
[ 2102.576320][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2102.576320][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2102.576320][   T73]      ___sys_sendmsg+0xee/0x170
[ 2102.576320][   T73]      __sys_sendmsg+0xcd/0x170
[ 2102.576320][   T73]      do_syscall_64+0xc6/0x1e0
[ 2102.576320][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2102.576320][   T73] 
[ 2102.578050][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2102.578372][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2102.578372][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2102.578372][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2102.578372][   T73]      fib6_nh_init+0xa22/0x1580
[ 2102.578372][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2102.578372][   T73]      ip6_route_add+0x1c/0x140
[ 2102.578372][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2102.578372][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2102.578372][   T73]      netlink_rcv_skb+0x130/0x360
[ 2102.578372][   T73]      netlink_unicast+0x449/0x710
[ 2102.578372][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2102.578372][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2102.578372][   T73]      ___sys_sendmsg+0xee/0x170
[ 2102.578372][   T73]      __sys_sendmsg+0xcd/0x170
[ 2102.578372][   T73]      do_syscall_64+0xc6/0x1e0
[ 2102.578372][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2102.578372][   T73] 
[ 2102.580976][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2102.580976][   T73]      dst_init+0x84/0x4a0
[ 2102.580976][   T73]      dst_alloc+0x97/0x150
[ 2102.580976][   T73]      ip6_dst_alloc+0x23/0x90
[ 2102.580976][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2102.580976][   T73]      ip6_pol_route+0x56f/0x840
[ 2102.580976][   T73]      fib6_rule_lookup+0x456/0x630
[ 2102.580976][   T73]      ip6_route_input+0x59c/0xa50
[ 2102.580976][   T73]      ipv6_rcv+0x397/0x810
[ 2102.580976][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2102.580976][   T73]      process_backlog+0x101/0x620
[ 2102.580976][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2102.580976][   T73]      net_rx_action+0x495/0xbe0
[ 2102.580976][   T73]      __do_softirq+0x1b5/0x7f6
[ 2102.580976][   T73] 
[ 2102.582967][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2102.582967][   T73]      netdev_get_by_index+0x5e/0x80
[ 2102.582967][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2102.582967][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2102.582967][   T73]      ip6_route_add+0x1c/0x140
[ 2102.582967][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2102.582967][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2102.582967][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2102.582967][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2102.582967][   T73]      netlink_rcv_skb+0x130/0x360
[ 2102.582967][   T73]      netlink_unicast+0x449/0x710
[ 2102.582967][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2102.582967][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2102.582967][   T73]      ___sys_sendmsg+0xee/0x170
[ 2102.582967][   T73]      __sys_sendmsg+0xcd/0x170
[ 2102.582967][   T73]      do_syscall_64+0xc6/0x1e0
[ 2102.582967][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2102.582967][   T73] 
[ 2102.585396][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2102.585396][   T73]      netdev_get_by_index+0x5e/0x80
[ 2102.585396][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2102.585396][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2102.585396][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2102.585396][   T73]      ipv6_add_addr+0x411/0x2000
[ 2102.585396][   T73]      inet6_addr_add+0x30e/0xa40
[ 2102.585396][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2102.585396][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2102.585396][   T73]      netlink_rcv_skb+0x130/0x360
[ 2102.585396][   T73]      netlink_unicast+0x449/0x710
[ 2102.585396][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2102.585396][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2102.585396][   T73]      ___sys_sendmsg+0xee/0x170
[ 2102.585396][   T73]      __sys_sendmsg+0xcd/0x170
[ 2102.585396][   T73]      do_syscall_64+0xc6/0x1e0
[ 2102.585396][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2102.585396][   T73] 
[ 2102.587839][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2102.587839][   T73]      netdev_get_by_index+0x5e/0x80
[ 2102.587839][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2102.587839][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2102.587839][   T73]      ip6_route_add+0x1c/0x140
[ 2102.587839][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2102.587839][   T73]      addrconf_add_dev+0xe2/0x170
[ 2102.587839][   T73]      inet6_addr_add+0x12f/0xa40
[ 2102.587839][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2102.587839][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2102.587839][   T73]      netlink_rcv_skb+0x130/0x360
[ 2102.587839][   T73]      netlink_unicast+0x449/0x710
[ 2102.587839][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2102.587839][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2102.587839][   T73]      ___sys_sendmsg+0xee/0x170
[ 2102.587839][   T73]      __sys_sendmsg+0xcd/0x170
[ 2102.587839][   T73]      do_syscall_64+0xc6/0x1e0
[ 2102.587839][   T73] 
[ 2102.590240][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2102.590240][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2102.590240][   T73]      ipv6_find_idev+0x102/0x170
[ 2102.590240][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2102.590240][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2102.590240][   T73]      netlink_rcv_skb+0x130/0x360
[ 2102.590240][   T73]      netlink_unicast+0x449/0x710
[ 2102.590240][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2102.590240][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2102.590240][   T73]      ___sys_sendmsg+0xee/0x170
[ 2102.590240][   T73]      __sys_sendmsg+0xcd/0x170
[ 2102.590240][   T73]      do_syscall_64+0xc6/0x1e0
[ 2102.590240][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2102.590240][   T73] 
[ 2102.592185][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2102.592185][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2102.592185][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2102.592185][   T73]      ipv6_find_idev+0x102/0x170
[ 2102.592185][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2102.592185][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2102.592185][   T73]      netlink_rcv_skb+0x130/0x360
[ 2102.592185][   T73]      netlink_unicast+0x449/0x710
[ 2102.592185][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2102.592185][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2102.592185][   T73]      ___sys_sendmsg+0xee/0x170
[ 2102.592185][   T73]      __sys_sendmsg+0xcd/0x170
[ 2102.592185][   T73]      do_syscall_64+0xc6/0x1e0
[ 2102.592185][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2102.592185][   T73] 
[ 2102.594242][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2102.594540][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2102.594540][   T73]      netdev_get_by_index+0x5e/0x80
[ 2102.594540][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2102.594540][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2102.594540][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2102.594540][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2102.594540][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2102.594540][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2102.594540][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2102.594540][   T73]      addrconf_dad_begin+0x310/0x670
[ 2102.594540][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2102.594540][   T73]      process_one_work+0x84d/0x18a0
[ 2102.594540][   T73]      worker_thread+0x587/0xd30
[ 2102.594540][   T73]      kthread+0x28a/0x350
[ 2102.594540][   T73]      ret_from_fork+0x31/0x70
[ 2102.594540][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2102.594540][   T73] 
[ 2102.596869][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2102.596869][   T73]      netdev_get_by_index+0x5e/0x80
[ 2102.596869][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2102.596869][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2102.596869][   T73]      ip6_route_add+0x1c/0x140
[ 2102.596869][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2102.596869][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2102.596869][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2102.596869][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2102.596869][   T73]      netlink_rcv_skb+0x130/0x360
[ 2102.596869][   T73]      netlink_unicast+0x449/0x710
[ 2102.596869][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2102.596869][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2102.596869][   T73]      ___sys_sendmsg+0xee/0x170
[ 2102.596869][   T73]      __sys_sendmsg+0xcd/0x170
[ 2102.596869][   T73]      do_syscall_64+0xc6/0x1e0
[ 2102.596869][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2102.596869][   T73] 
[ 2102.599150][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2102.599150][   T73]      netdev_get_by_index+0x5e/0x80
[ 2102.599150][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2102.599150][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2102.599150][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2102.599150][   T73]      ipv6_add_addr+0x411/0x2000
[ 2102.599150][   T73]      inet6_addr_add+0x30e/0xa40
[ 2102.599150][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2102.599150][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2102.599150][   T73]      netlink_rcv_skb+0x130/0x360
[ 2102.599150][   T73]      netlink_unicast+0x449/0x710
[ 2102.599150][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2102.599150][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2102.599150][   T73]      ___sys_sendmsg+0xee/0x170
[ 2102.599150][   T73]      __sys_sendmsg+0xcd/0x170
[ 2102.599150][   T73]      do_syscall_64+0xc6/0x1e0
[ 2102.599150][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2102.599150][   T73] 
[ 2102.601492][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2102.601492][   T73]      netdev_get_by_index+0x5e/0x80
[ 2102.601492][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2102.601492][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2102.601492][   T73]      ip6_route_add+0x1c/0x140
[ 2102.601492][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2102.601492][   T73]      addrconf_add_dev+0xe2/0x170
[ 2102.601492][   T73]      inet6_addr_add+0x12f/0xa40
[ 2102.601492][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2102.601492][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2102.601492][   T73]      netlink_rcv_skb+0x130/0x360
[ 2102.601492][   T73]      netlink_unicast+0x449/0x710
[ 2102.601492][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2102.601492][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2102.601492][   T73]      ___sys_sendmsg+0xee/0x170
[ 2102.601492][   T73]      __sys_sendmsg+0xcd/0x170
[ 2102.601492][   T73]      do_syscall_64+0xc6/0x1e0
[ 2102.601492][   T73] 
[ 2102.603677][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2102.603677][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2102.603677][   T73]      ipv6_find_idev+0x102/0x170
[ 2102.603677][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2102.603677][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2102.603677][   T73]      netlink_rcv_skb+0x130/0x360
[ 2102.603677][   T73]      netlink_unicast+0x449/0x710
[ 2102.603677][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2102.603677][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2102.603677][   T73]      ___sys_sendmsg+0xee/0x170
[ 2102.603677][   T73]      __sys_sendmsg+0xcd/0x170
[ 2102.603677][   T73]      do_syscall_64+0xc6/0x1e0
[ 2102.603677][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2102.603677][   T73] 
[ 2102.605425][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2102.605425][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2102.605425][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2102.605425][   T73]      ipv6_find_idev+0x102/0x170
[ 2102.605425][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2102.605425][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2102.605425][   T73]      netlink_rcv_skb+0x130/0x360
[ 2102.605425][   T73]      netlink_unicast+0x449/0x710
[ 2102.605425][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2102.605425][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2102.605425][   T73]      ___sys_sendmsg+0xee/0x170
[ 2102.605425][   T73]      __sys_sendmsg+0xcd/0x170
[ 2102.605425][   T73]      do_syscall_64+0xc6/0x1e0
[ 2102.605425][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2102.605425][   T73] 
[ 2112.671805][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2112.672234][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2112.672234][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2112.672234][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2112.672234][   T73]      fib6_nh_init+0xa22/0x1580
[ 2112.672234][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2112.672234][   T73]      ip6_route_add+0x1c/0x140
[ 2112.672234][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2112.672234][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2112.672234][   T73]      netlink_rcv_skb+0x130/0x360
[ 2112.672234][   T73]      netlink_unicast+0x449/0x710
[ 2112.672234][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2112.672234][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2112.672234][   T73]      ___sys_sendmsg+0xee/0x170
[ 2112.672234][   T73]      __sys_sendmsg+0xcd/0x170
[ 2112.672234][   T73]      do_syscall_64+0xc6/0x1e0
[ 2112.672234][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2112.672234][   T73] 
[ 2112.674284][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2112.674284][   T73]      dst_init+0x84/0x4a0
[ 2112.674284][   T73]      dst_alloc+0x97/0x150
[ 2112.674284][   T73]      ip6_dst_alloc+0x23/0x90
[ 2112.674284][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2112.674284][   T73]      ip6_pol_route+0x56f/0x840
[ 2112.674284][   T73]      fib6_rule_lookup+0x456/0x630
[ 2112.674284][   T73]      ip6_route_input+0x59c/0xa50
[ 2112.674284][   T73]      ipv6_rcv+0x397/0x810
[ 2112.674284][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2112.674284][   T73]      process_backlog+0x101/0x620
[ 2112.674284][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2112.674284][   T73]      net_rx_action+0x495/0xbe0
[ 2112.674284][   T73]      __do_softirq+0x1b5/0x7f6
[ 2112.674284][   T73] 
[ 2112.675933][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2112.675933][   T73]      netdev_get_by_index+0x5e/0x80
[ 2112.675933][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2112.675933][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2112.675933][   T73]      ip6_route_add+0x1c/0x140
[ 2112.675933][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2112.675933][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2112.675933][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2112.675933][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2112.675933][   T73]      netlink_rcv_skb+0x130/0x360
[ 2112.675933][   T73]      netlink_unicast+0x449/0x710
[ 2112.675933][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2112.675933][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2112.675933][   T73]      ___sys_sendmsg+0xee/0x170
[ 2112.675933][   T73]      __sys_sendmsg+0xcd/0x170
[ 2112.675933][   T73]      do_syscall_64+0xc6/0x1e0
[ 2112.675933][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2112.675933][   T73] 
[ 2112.677928][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2112.677928][   T73]      netdev_get_by_index+0x5e/0x80
[ 2112.677928][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2112.677928][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2112.677928][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2112.677928][   T73]      ipv6_add_addr+0x411/0x2000
[ 2112.677928][   T73]      inet6_addr_add+0x30e/0xa40
[ 2112.677928][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2112.677928][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2112.677928][   T73]      netlink_rcv_skb+0x130/0x360
[ 2112.677928][   T73]      netlink_unicast+0x449/0x710
[ 2112.677928][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2112.677928][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2112.677928][   T73]      ___sys_sendmsg+0xee/0x170
[ 2112.677928][   T73]      __sys_sendmsg+0xcd/0x170
[ 2112.677928][   T73]      do_syscall_64+0xc6/0x1e0
[ 2112.677928][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2112.677928][   T73] 
[ 2112.679911][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2112.679911][   T73]      netdev_get_by_index+0x5e/0x80
[ 2112.679911][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2112.679911][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2112.679911][   T73]      ip6_route_add+0x1c/0x140
[ 2112.679911][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2112.679911][   T73]      addrconf_add_dev+0xe2/0x170
[ 2112.679911][   T73]      inet6_addr_add+0x12f/0xa40
[ 2112.679911][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2112.679911][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2112.679911][   T73]      netlink_rcv_skb+0x130/0x360
[ 2112.679911][   T73]      netlink_unicast+0x449/0x710
[ 2112.679911][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2112.679911][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2112.679911][   T73]      ___sys_sendmsg+0xee/0x170
[ 2112.679911][   T73]      __sys_sendmsg+0xcd/0x170
[ 2112.679911][   T73]      do_syscall_64+0xc6/0x1e0
[ 2112.679911][   T73] 
[ 2112.681879][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2112.681879][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2112.681879][   T73]      ipv6_find_idev+0x102/0x170
[ 2112.681879][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2112.681879][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2112.681879][   T73]      netlink_rcv_skb+0x130/0x360
[ 2112.681879][   T73]      netlink_unicast+0x449/0x710
[ 2112.681879][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2112.681879][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2112.681879][   T73]      ___sys_sendmsg+0xee/0x170
[ 2112.681879][   T73]      __sys_sendmsg+0xcd/0x170
[ 2112.681879][   T73]      do_syscall_64+0xc6/0x1e0
[ 2112.681879][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2112.681879][   T73] 
[ 2112.683408][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2112.683408][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2112.683408][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2112.683408][   T73]      ipv6_find_idev+0x102/0x170
[ 2112.683408][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2112.683408][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2112.683408][   T73]      netlink_rcv_skb+0x130/0x360
[ 2112.683408][   T73]      netlink_unicast+0x449/0x710
[ 2112.683408][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2112.683408][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2112.683408][   T73]      ___sys_sendmsg+0xee/0x170
[ 2112.683408][   T73]      __sys_sendmsg+0xcd/0x170
[ 2112.683408][   T73]      do_syscall_64+0xc6/0x1e0
[ 2112.683408][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2112.683408][   T73] 
[ 2112.685165][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2112.685466][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2112.685466][   T73]      netdev_get_by_index+0x5e/0x80
[ 2112.685466][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2112.685466][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2112.685466][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2112.685466][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2112.685466][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2112.685466][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2112.685466][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2112.685466][   T73]      addrconf_dad_begin+0x310/0x670
[ 2112.685466][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2112.685466][   T73]      process_one_work+0x84d/0x18a0
[ 2112.685466][   T73]      worker_thread+0x587/0xd30
[ 2112.685466][   T73]      kthread+0x28a/0x350
[ 2112.685466][   T73]      ret_from_fork+0x31/0x70
[ 2112.685466][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2112.685466][   T73] 
[ 2112.687373][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2112.687373][   T73]      netdev_get_by_index+0x5e/0x80
[ 2112.687373][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2112.687373][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2112.687373][   T73]      ip6_route_add+0x1c/0x140
[ 2112.687373][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2112.687373][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2112.687373][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2112.687373][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2112.687373][   T73]      netlink_rcv_skb+0x130/0x360
[ 2112.687373][   T73]      netlink_unicast+0x449/0x710
[ 2112.687373][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2112.687373][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2112.687373][   T73]      ___sys_sendmsg+0xee/0x170
[ 2112.687373][   T73]      __sys_sendmsg+0xcd/0x170
[ 2112.687373][   T73]      do_syscall_64+0xc6/0x1e0
[ 2112.687373][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2112.687373][   T73] 
[ 2112.689366][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2112.689366][   T73]      netdev_get_by_index+0x5e/0x80
[ 2112.689366][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2112.689366][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2112.689366][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2112.689366][   T73]      ipv6_add_addr+0x411/0x2000
[ 2112.689366][   T73]      inet6_addr_add+0x30e/0xa40
[ 2112.689366][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2112.689366][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2112.689366][   T73]      netlink_rcv_skb+0x130/0x360
[ 2112.689366][   T73]      netlink_unicast+0x449/0x710
[ 2112.689366][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2112.689366][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2112.689366][   T73]      ___sys_sendmsg+0xee/0x170
[ 2112.689366][   T73]      __sys_sendmsg+0xcd/0x170
[ 2112.689366][   T73]      do_syscall_64+0xc6/0x1e0
[ 2112.689366][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2112.689366][   T73] 
[ 2112.691369][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2112.691369][   T73]      netdev_get_by_index+0x5e/0x80
[ 2112.691369][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2112.691369][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2112.691369][   T73]      ip6_route_add+0x1c/0x140
[ 2112.691369][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2112.691369][   T73]      addrconf_add_dev+0xe2/0x170
[ 2112.691369][   T73]      inet6_addr_add+0x12f/0xa40
[ 2112.691369][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2112.691369][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2112.691369][   T73]      netlink_rcv_skb+0x130/0x360
[ 2112.691369][   T73]      netlink_unicast+0x449/0x710
[ 2112.691369][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2112.691369][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2112.691369][   T73]      ___sys_sendmsg+0xee/0x170
[ 2112.691369][   T73]      __sys_sendmsg+0xcd/0x170
[ 2112.691369][   T73]      do_syscall_64+0xc6/0x1e0
[ 2112.691369][   T73] 
[ 2112.693329][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2112.693329][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2112.693329][   T73]      ipv6_find_idev+0x102/0x170
[ 2112.693329][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2112.693329][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2112.693329][   T73]      netlink_rcv_skb+0x130/0x360
[ 2112.693329][   T73]      netlink_unicast+0x449/0x710
[ 2112.693329][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2112.693329][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2112.693329][   T73]      ___sys_sendmsg+0xee/0x170
[ 2112.693329][   T73]      __sys_sendmsg+0xcd/0x170
[ 2112.693329][   T73]      do_syscall_64+0xc6/0x1e0
[ 2112.693329][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2112.693329][   T73] 
[ 2112.694864][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2112.694864][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2112.694864][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2112.694864][   T73]      ipv6_find_idev+0x102/0x170
[ 2112.694864][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2112.694864][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2112.694864][   T73]      netlink_rcv_skb+0x130/0x360
[ 2112.694864][   T73]      netlink_unicast+0x449/0x710
[ 2112.694864][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2112.694864][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2112.694864][   T73]      ___sys_sendmsg+0xee/0x170
[ 2112.694864][   T73]      __sys_sendmsg+0xcd/0x170
[ 2112.694864][   T73]      do_syscall_64+0xc6/0x1e0
[ 2112.694864][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2112.694864][   T73] 
[ 2112.696565][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2112.696853][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2112.696853][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2112.696853][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2112.696853][   T73]      fib6_nh_init+0xa22/0x1580
[ 2112.696853][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2112.696853][   T73]      ip6_route_add+0x1c/0x140
[ 2112.696853][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2112.696853][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2112.696853][   T73]      netlink_rcv_skb+0x130/0x360
[ 2112.696853][   T73]      netlink_unicast+0x449/0x710
[ 2112.696853][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2112.696853][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2112.696853][   T73]      ___sys_sendmsg+0xee/0x170
[ 2112.696853][   T73]      __sys_sendmsg+0xcd/0x170
[ 2112.696853][   T73]      do_syscall_64+0xc6/0x1e0
[ 2112.696853][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2112.696853][   T73] 
[ 2112.698960][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2112.698960][   T73]      dst_init+0x84/0x4a0
[ 2112.698960][   T73]      dst_alloc+0x97/0x150
[ 2112.698960][   T73]      ip6_dst_alloc+0x23/0x90
[ 2112.698960][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2112.698960][   T73]      ip6_pol_route+0x56f/0x840
[ 2112.698960][   T73]      fib6_rule_lookup+0x456/0x630
[ 2112.698960][   T73]      ip6_route_input+0x59c/0xa50
[ 2112.698960][   T73]      ipv6_rcv+0x397/0x810
[ 2112.698960][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2112.698960][   T73]      process_backlog+0x101/0x620
[ 2112.698960][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2112.698960][   T73]      net_rx_action+0x495/0xbe0
[ 2112.698960][   T73]      __do_softirq+0x1b5/0x7f6
[ 2112.698960][   T73] 
[ 2112.700781][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2112.700781][   T73]      netdev_get_by_index+0x5e/0x80
[ 2112.700781][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2112.700781][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2112.700781][   T73]      ip6_route_add+0x1c/0x140
[ 2112.700781][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2112.700781][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2112.700781][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2112.700781][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2112.700781][   T73]      netlink_rcv_skb+0x130/0x360
[ 2112.700781][   T73]      netlink_unicast+0x449/0x710
[ 2112.700781][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2112.700781][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2112.700781][   T73]      ___sys_sendmsg+0xee/0x170
[ 2112.700781][   T73]      __sys_sendmsg+0xcd/0x170
[ 2112.700781][   T73]      do_syscall_64+0xc6/0x1e0
[ 2112.700781][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2112.700781][   T73] 
[ 2112.703055][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2112.703055][   T73]      netdev_get_by_index+0x5e/0x80
[ 2112.703055][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2112.703055][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2112.703055][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2112.703055][   T73]      ipv6_add_addr+0x411/0x2000
[ 2112.703055][   T73]      inet6_addr_add+0x30e/0xa40
[ 2112.703055][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2112.703055][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2112.703055][   T73]      netlink_rcv_skb+0x130/0x360
[ 2112.703055][   T73]      netlink_unicast+0x449/0x710
[ 2112.703055][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2112.703055][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2112.703055][   T73]      ___sys_sendmsg+0xee/0x170
[ 2112.703055][   T73]      __sys_sendmsg+0xcd/0x170
[ 2112.703055][   T73]      do_syscall_64+0xc6/0x1e0
[ 2112.703055][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2112.703055][   T73] 
[ 2112.705310][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2112.705310][   T73]      netdev_get_by_index+0x5e/0x80
[ 2112.705310][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2112.705310][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2112.705310][   T73]      ip6_route_add+0x1c/0x140
[ 2112.705310][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2112.705310][   T73]      addrconf_add_dev+0xe2/0x170
[ 2112.705310][   T73]      inet6_addr_add+0x12f/0xa40
[ 2112.705310][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2112.705310][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2112.705310][   T73]      netlink_rcv_skb+0x130/0x360
[ 2112.705310][   T73]      netlink_unicast+0x449/0x710
[ 2112.705310][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2112.705310][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2112.705310][   T73]      ___sys_sendmsg+0xee/0x170
[ 2112.705310][   T73]      __sys_sendmsg+0xcd/0x170
[ 2112.705310][   T73]      do_syscall_64+0xc6/0x1e0
[ 2112.705310][   T73] 
[ 2112.707545][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2112.707545][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2112.707545][   T73]      ipv6_find_idev+0x102/0x170
[ 2112.707545][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2112.707545][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2112.707545][   T73]      netlink_rcv_skb+0x130/0x360
[ 2112.707545][   T73]      netlink_unicast+0x449/0x710
[ 2112.707545][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2112.707545][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2112.707545][   T73]      ___sys_sendmsg+0xee/0x170
[ 2112.707545][   T73]      __sys_sendmsg+0xcd/0x170
[ 2112.707545][   T73]      do_syscall_64+0xc6/0x1e0
[ 2112.707545][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2112.707545][   T73] 
[ 2112.709282][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2112.709282][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2112.709282][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2112.709282][   T73]      ipv6_find_idev+0x102/0x170
[ 2112.709282][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2112.709282][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2112.709282][   T73]      netlink_rcv_skb+0x130/0x360
[ 2112.709282][   T73]      netlink_unicast+0x449/0x710
[ 2112.709282][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2112.709282][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2112.709282][   T73]      ___sys_sendmsg+0xee/0x170
[ 2112.709282][   T73]      __sys_sendmsg+0xcd/0x170
[ 2112.709282][   T73]      do_syscall_64+0xc6/0x1e0
[ 2112.709282][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2112.709282][   T73] 
[ 2112.711252][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2112.711552][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2112.711552][   T73]      netdev_get_by_index+0x5e/0x80
[ 2112.711552][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2112.711552][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2112.711552][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2112.711552][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2112.711552][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2112.711552][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2112.711552][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2112.711552][   T73]      addrconf_dad_begin+0x310/0x670
[ 2112.711552][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2112.711552][   T73]      process_one_work+0x84d/0x18a0
[ 2112.711552][   T73]      worker_thread+0x587/0xd30
[ 2112.711552][   T73]      kthread+0x28a/0x350
[ 2112.711552][   T73]      ret_from_fork+0x31/0x70
[ 2112.711552][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2112.711552][   T73] 
[ 2112.713772][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2112.713772][   T73]      netdev_get_by_index+0x5e/0x80
[ 2112.713772][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2112.713772][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2112.713772][   T73]      ip6_route_add+0x1c/0x140
[ 2112.713772][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2112.713772][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2112.713772][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2112.713772][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2112.713772][   T73]      netlink_rcv_skb+0x130/0x360
[ 2112.713772][   T73]      netlink_unicast+0x449/0x710
[ 2112.713772][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2112.713772][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2112.713772][   T73]      ___sys_sendmsg+0xee/0x170
[ 2112.713772][   T73]      __sys_sendmsg+0xcd/0x170
[ 2112.713772][   T73]      do_syscall_64+0xc6/0x1e0
[ 2112.713772][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2112.713772][   T73] 
[ 2112.716001][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2112.716001][   T73]      netdev_get_by_index+0x5e/0x80
[ 2112.716001][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2112.716001][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2112.716001][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2112.716001][   T73]      ipv6_add_addr+0x411/0x2000
[ 2112.716001][   T73]      inet6_addr_add+0x30e/0xa40
[ 2112.716001][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2112.716001][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2112.716001][   T73]      netlink_rcv_skb+0x130/0x360
[ 2112.716001][   T73]      netlink_unicast+0x449/0x710
[ 2112.716001][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2112.716001][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2112.716001][   T73]      ___sys_sendmsg+0xee/0x170
[ 2112.716001][   T73]      __sys_sendmsg+0xcd/0x170
[ 2112.716001][   T73]      do_syscall_64+0xc6/0x1e0
[ 2112.716001][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2112.716001][   T73] 
[ 2112.718263][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2112.718263][   T73]      netdev_get_by_index+0x5e/0x80
[ 2112.718263][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2112.718263][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2112.718263][   T73]      ip6_route_add+0x1c/0x140
[ 2112.718263][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2112.718263][   T73]      addrconf_add_dev+0xe2/0x170
[ 2112.718263][   T73]      inet6_addr_add+0x12f/0xa40
[ 2112.718263][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2112.718263][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2112.718263][   T73]      netlink_rcv_skb+0x130/0x360
[ 2112.718263][   T73]      netlink_unicast+0x449/0x710
[ 2112.718263][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2112.718263][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2112.718263][   T73]      ___sys_sendmsg+0xee/0x170
[ 2112.718263][   T73]      __sys_sendmsg+0xcd/0x170
[ 2112.718263][   T73]      do_syscall_64+0xc6/0x1e0
[ 2112.718263][   T73] 
[ 2112.720465][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2112.720465][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2112.720465][   T73]      ipv6_find_idev+0x102/0x170
[ 2112.720465][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2112.720465][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2112.720465][   T73]      netlink_rcv_skb+0x130/0x360
[ 2112.720465][   T73]      netlink_unicast+0x449/0x710
[ 2112.720465][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2112.720465][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2112.720465][   T73]      ___sys_sendmsg+0xee/0x170
[ 2112.720465][   T73]      __sys_sendmsg+0xcd/0x170
[ 2112.720465][   T73]      do_syscall_64+0xc6/0x1e0
[ 2112.720465][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2112.720465][   T73] 
[ 2112.722204][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2112.722204][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2112.722204][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2112.722204][   T73]      ipv6_find_idev+0x102/0x170
[ 2112.722204][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2112.722204][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2112.722204][   T73]      netlink_rcv_skb+0x130/0x360
[ 2112.722204][   T73]      netlink_unicast+0x449/0x710
[ 2112.722204][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2112.722204][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2112.722204][   T73]      ___sys_sendmsg+0xee/0x170
[ 2112.722204][   T73]      __sys_sendmsg+0xcd/0x170
[ 2112.722204][   T73]      do_syscall_64+0xc6/0x1e0
[ 2112.722204][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2112.722204][   T73] 
[ 2122.840689][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2122.841135][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2122.841135][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2122.841135][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2122.841135][   T73]      fib6_nh_init+0xa22/0x1580
[ 2122.841135][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2122.841135][   T73]      ip6_route_add+0x1c/0x140
[ 2122.841135][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2122.841135][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2122.841135][   T73]      netlink_rcv_skb+0x130/0x360
[ 2122.841135][   T73]      netlink_unicast+0x449/0x710
[ 2122.841135][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2122.841135][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2122.841135][   T73]      ___sys_sendmsg+0xee/0x170
[ 2122.841135][   T73]      __sys_sendmsg+0xcd/0x170
[ 2122.841135][   T73]      do_syscall_64+0xc6/0x1e0
[ 2122.841135][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2122.841135][   T73] 
[ 2122.843074][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2122.843074][   T73]      dst_init+0x84/0x4a0
[ 2122.843074][   T73]      dst_alloc+0x97/0x150
[ 2122.843074][   T73]      ip6_dst_alloc+0x23/0x90
[ 2122.843074][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2122.843074][   T73]      ip6_pol_route+0x56f/0x840
[ 2122.843074][   T73]      fib6_rule_lookup+0x456/0x630
[ 2122.843074][   T73]      ip6_route_input+0x59c/0xa50
[ 2122.843074][   T73]      ipv6_rcv+0x397/0x810
[ 2122.843074][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2122.843074][   T73]      process_backlog+0x101/0x620
[ 2122.843074][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2122.843074][   T73]      net_rx_action+0x495/0xbe0
[ 2122.843074][   T73]      __do_softirq+0x1b5/0x7f6
[ 2122.843074][   T73] 
[ 2122.844754][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2122.844754][   T73]      netdev_get_by_index+0x5e/0x80
[ 2122.844754][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2122.844754][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2122.844754][   T73]      ip6_route_add+0x1c/0x140
[ 2122.844754][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2122.844754][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2122.844754][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2122.844754][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2122.844754][   T73]      netlink_rcv_skb+0x130/0x360
[ 2122.844754][   T73]      netlink_unicast+0x449/0x710
[ 2122.844754][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2122.844754][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2122.844754][   T73]      ___sys_sendmsg+0xee/0x170
[ 2122.844754][   T73]      __sys_sendmsg+0xcd/0x170
[ 2122.844754][   T73]      do_syscall_64+0xc6/0x1e0
[ 2122.844754][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2122.844754][   T73] 
[ 2122.846890][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2122.846890][   T73]      netdev_get_by_index+0x5e/0x80
[ 2122.846890][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2122.846890][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2122.846890][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2122.846890][   T73]      ipv6_add_addr+0x411/0x2000
[ 2122.846890][   T73]      inet6_addr_add+0x30e/0xa40
[ 2122.846890][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2122.846890][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2122.846890][   T73]      netlink_rcv_skb+0x130/0x360
[ 2122.846890][   T73]      netlink_unicast+0x449/0x710
[ 2122.846890][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2122.846890][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2122.846890][   T73]      ___sys_sendmsg+0xee/0x170
[ 2122.846890][   T73]      __sys_sendmsg+0xcd/0x170
[ 2122.846890][   T73]      do_syscall_64+0xc6/0x1e0
[ 2122.846890][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2122.846890][   T73] 
[ 2122.848994][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2122.848994][   T73]      netdev_get_by_index+0x5e/0x80
[ 2122.848994][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2122.848994][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2122.848994][   T73]      ip6_route_add+0x1c/0x140
[ 2122.848994][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2122.848994][   T73]      addrconf_add_dev+0xe2/0x170
[ 2122.848994][   T73]      inet6_addr_add+0x12f/0xa40
[ 2122.848994][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2122.848994][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2122.848994][   T73]      netlink_rcv_skb+0x130/0x360
[ 2122.848994][   T73]      netlink_unicast+0x449/0x710
[ 2122.848994][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2122.848994][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2122.848994][   T73]      ___sys_sendmsg+0xee/0x170
[ 2122.848994][   T73]      __sys_sendmsg+0xcd/0x170
[ 2122.848994][   T73]      do_syscall_64+0xc6/0x1e0
[ 2122.848994][   T73] 
[ 2122.851064][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2122.851064][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2122.851064][   T73]      ipv6_find_idev+0x102/0x170
[ 2122.851064][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2122.851064][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2122.851064][   T73]      netlink_rcv_skb+0x130/0x360
[ 2122.851064][   T73]      netlink_unicast+0x449/0x710
[ 2122.851064][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2122.851064][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2122.851064][   T73]      ___sys_sendmsg+0xee/0x170
[ 2122.851064][   T73]      __sys_sendmsg+0xcd/0x170
[ 2122.851064][   T73]      do_syscall_64+0xc6/0x1e0
[ 2122.851064][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2122.851064][   T73] 
[ 2122.852686][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2122.852686][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2122.852686][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2122.852686][   T73]      ipv6_find_idev+0x102/0x170
[ 2122.852686][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2122.852686][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2122.852686][   T73]      netlink_rcv_skb+0x130/0x360
[ 2122.852686][   T73]      netlink_unicast+0x449/0x710
[ 2122.852686][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2122.852686][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2122.852686][   T73]      ___sys_sendmsg+0xee/0x170
[ 2122.852686][   T73]      __sys_sendmsg+0xcd/0x170
[ 2122.852686][   T73]      do_syscall_64+0xc6/0x1e0
[ 2122.852686][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2122.852686][   T73] 
[ 2122.854401][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2122.854690][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2122.854690][   T73]      netdev_get_by_index+0x5e/0x80
[ 2122.854690][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2122.854690][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2122.854690][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2122.854690][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2122.854690][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2122.854690][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2122.854690][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2122.854690][   T73]      addrconf_dad_begin+0x310/0x670
[ 2122.854690][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2122.854690][   T73]      process_one_work+0x84d/0x18a0
[ 2122.854690][   T73]      worker_thread+0x587/0xd30
[ 2122.854690][   T73]      kthread+0x28a/0x350
[ 2122.854690][   T73]      ret_from_fork+0x31/0x70
[ 2122.854690][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2122.854690][   T73] 
[ 2122.856686][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2122.856686][   T73]      netdev_get_by_index+0x5e/0x80
[ 2122.856686][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2122.856686][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2122.856686][   T73]      ip6_route_add+0x1c/0x140
[ 2122.856686][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2122.856686][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2122.856686][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2122.856686][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2122.856686][   T73]      netlink_rcv_skb+0x130/0x360
[ 2122.856686][   T73]      netlink_unicast+0x449/0x710
[ 2122.856686][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2122.856686][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2122.856686][   T73]      ___sys_sendmsg+0xee/0x170
[ 2122.856686][   T73]      __sys_sendmsg+0xcd/0x170
[ 2122.856686][   T73]      do_syscall_64+0xc6/0x1e0
[ 2122.856686][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2122.856686][   T73] 
[ 2122.858801][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2122.858801][   T73]      netdev_get_by_index+0x5e/0x80
[ 2122.858801][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2122.858801][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2122.858801][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2122.858801][   T73]      ipv6_add_addr+0x411/0x2000
[ 2122.858801][   T73]      inet6_addr_add+0x30e/0xa40
[ 2122.858801][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2122.858801][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2122.858801][   T73]      netlink_rcv_skb+0x130/0x360
[ 2122.858801][   T73]      netlink_unicast+0x449/0x710
[ 2122.858801][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2122.858801][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2122.858801][   T73]      ___sys_sendmsg+0xee/0x170
[ 2122.858801][   T73]      __sys_sendmsg+0xcd/0x170
[ 2122.858801][   T73]      do_syscall_64+0xc6/0x1e0
[ 2122.858801][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2122.858801][   T73] 
[ 2122.860921][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2122.860921][   T73]      netdev_get_by_index+0x5e/0x80
[ 2122.860921][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2122.860921][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2122.860921][   T73]      ip6_route_add+0x1c/0x140
[ 2122.860921][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2122.860921][   T73]      addrconf_add_dev+0xe2/0x170
[ 2122.860921][   T73]      inet6_addr_add+0x12f/0xa40
[ 2122.860921][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2122.860921][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2122.860921][   T73]      netlink_rcv_skb+0x130/0x360
[ 2122.860921][   T73]      netlink_unicast+0x449/0x710
[ 2122.860921][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2122.860921][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2122.860921][   T73]      ___sys_sendmsg+0xee/0x170
[ 2122.860921][   T73]      __sys_sendmsg+0xcd/0x170
[ 2122.860921][   T73]      do_syscall_64+0xc6/0x1e0
[ 2122.860921][   T73] 
[ 2122.862992][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2122.862992][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2122.862992][   T73]      ipv6_find_idev+0x102/0x170
[ 2122.862992][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2122.862992][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2122.862992][   T73]      netlink_rcv_skb+0x130/0x360
[ 2122.862992][   T73]      netlink_unicast+0x449/0x710
[ 2122.862992][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2122.862992][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2122.862992][   T73]      ___sys_sendmsg+0xee/0x170
[ 2122.862992][   T73]      __sys_sendmsg+0xcd/0x170
[ 2122.862992][   T73]      do_syscall_64+0xc6/0x1e0
[ 2122.862992][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2122.862992][   T73] 
[ 2122.864622][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2122.864622][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2122.864622][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2122.864622][   T73]      ipv6_find_idev+0x102/0x170
[ 2122.864622][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2122.864622][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2122.864622][   T73]      netlink_rcv_skb+0x130/0x360
[ 2122.864622][   T73]      netlink_unicast+0x449/0x710
[ 2122.864622][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2122.864622][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2122.864622][   T73]      ___sys_sendmsg+0xee/0x170
[ 2122.864622][   T73]      __sys_sendmsg+0xcd/0x170
[ 2122.864622][   T73]      do_syscall_64+0xc6/0x1e0
[ 2122.864622][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2122.864622][   T73] 
[ 2122.866458][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2122.866755][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2122.866755][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2122.866755][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2122.866755][   T73]      fib6_nh_init+0xa22/0x1580
[ 2122.866755][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2122.866755][   T73]      ip6_route_add+0x1c/0x140
[ 2122.866755][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2122.866755][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2122.866755][   T73]      netlink_rcv_skb+0x130/0x360
[ 2122.866755][   T73]      netlink_unicast+0x449/0x710
[ 2122.866755][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2122.866755][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2122.866755][   T73]      ___sys_sendmsg+0xee/0x170
[ 2122.866755][   T73]      __sys_sendmsg+0xcd/0x170
[ 2122.866755][   T73]      do_syscall_64+0xc6/0x1e0
[ 2122.866755][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2122.866755][   T73] 
[ 2122.868778][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2122.868778][   T73]      dst_init+0x84/0x4a0
[ 2122.868778][   T73]      dst_alloc+0x97/0x150
[ 2122.868778][   T73]      ip6_dst_alloc+0x23/0x90
[ 2122.868778][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2122.868778][   T73]      ip6_pol_route+0x56f/0x840
[ 2122.868778][   T73]      fib6_rule_lookup+0x456/0x630
[ 2122.868778][   T73]      ip6_route_input+0x59c/0xa50
[ 2122.868778][   T73]      ipv6_rcv+0x397/0x810
[ 2122.868778][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2122.868778][   T73]      process_backlog+0x101/0x620
[ 2122.868778][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2122.868778][   T73]      net_rx_action+0x495/0xbe0
[ 2122.868778][   T73]      __do_softirq+0x1b5/0x7f6
[ 2122.868778][   T73] 
[ 2122.870724][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2122.870724][   T73]      netdev_get_by_index+0x5e/0x80
[ 2122.870724][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2122.870724][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2122.870724][   T73]      ip6_route_add+0x1c/0x140
[ 2122.870724][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2122.870724][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2122.870724][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2122.870724][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2122.870724][   T73]      netlink_rcv_skb+0x130/0x360
[ 2122.870724][   T73]      netlink_unicast+0x449/0x710
[ 2122.870724][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2122.870724][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2122.870724][   T73]      ___sys_sendmsg+0xee/0x170
[ 2122.870724][   T73]      __sys_sendmsg+0xcd/0x170
[ 2122.870724][   T73]      do_syscall_64+0xc6/0x1e0
[ 2122.870724][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2122.870724][   T73] 
[ 2122.872977][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2122.872977][   T73]      netdev_get_by_index+0x5e/0x80
[ 2122.872977][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2122.872977][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2122.872977][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2122.872977][   T73]      ipv6_add_addr+0x411/0x2000
[ 2122.872977][   T73]      inet6_addr_add+0x30e/0xa40
[ 2122.872977][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2122.872977][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2122.872977][   T73]      netlink_rcv_skb+0x130/0x360
[ 2122.872977][   T73]      netlink_unicast+0x449/0x710
[ 2122.872977][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2122.872977][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2122.872977][   T73]      ___sys_sendmsg+0xee/0x170
[ 2122.872977][   T73]      __sys_sendmsg+0xcd/0x170
[ 2122.872977][   T73]      do_syscall_64+0xc6/0x1e0
[ 2122.872977][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2122.872977][   T73] 
[ 2122.875310][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2122.875310][   T73]      netdev_get_by_index+0x5e/0x80
[ 2122.875310][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2122.875310][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2122.875310][   T73]      ip6_route_add+0x1c/0x140
[ 2122.875310][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2122.875310][   T73]      addrconf_add_dev+0xe2/0x170
[ 2122.875310][   T73]      inet6_addr_add+0x12f/0xa40
[ 2122.875310][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2122.875310][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2122.875310][   T73]      netlink_rcv_skb+0x130/0x360
[ 2122.875310][   T73]      netlink_unicast+0x449/0x710
[ 2122.875310][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2122.875310][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2122.875310][   T73]      ___sys_sendmsg+0xee/0x170
[ 2122.875310][   T73]      __sys_sendmsg+0xcd/0x170
[ 2122.875310][   T73]      do_syscall_64+0xc6/0x1e0
[ 2122.875310][   T73] 
[ 2122.877582][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2122.877582][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2122.877582][   T73]      ipv6_find_idev+0x102/0x170
[ 2122.877582][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2122.877582][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2122.877582][   T73]      netlink_rcv_skb+0x130/0x360
[ 2122.877582][   T73]      netlink_unicast+0x449/0x710
[ 2122.877582][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2122.877582][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2122.877582][   T73]      ___sys_sendmsg+0xee/0x170
[ 2122.877582][   T73]      __sys_sendmsg+0xcd/0x170
[ 2122.877582][   T73]      do_syscall_64+0xc6/0x1e0
[ 2122.877582][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2122.877582][   T73] 
[ 2122.879380][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2122.879380][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2122.879380][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2122.879380][   T73]      ipv6_find_idev+0x102/0x170
[ 2122.879380][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2122.879380][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2122.879380][   T73]      netlink_rcv_skb+0x130/0x360
[ 2122.879380][   T73]      netlink_unicast+0x449/0x710
[ 2122.879380][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2122.879380][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2122.879380][   T73]      ___sys_sendmsg+0xee/0x170
[ 2122.879380][   T73]      __sys_sendmsg+0xcd/0x170
[ 2122.879380][   T73]      do_syscall_64+0xc6/0x1e0
[ 2122.879380][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2122.879380][   T73] 
[ 2122.881361][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2122.881665][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2122.881665][   T73]      netdev_get_by_index+0x5e/0x80
[ 2122.881665][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2122.881665][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2122.881665][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2122.881665][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2122.881665][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2122.881665][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2122.881665][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2122.881665][   T73]      addrconf_dad_begin+0x310/0x670
[ 2122.881665][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2122.881665][   T73]      process_one_work+0x84d/0x18a0
[ 2122.881665][   T73]      worker_thread+0x587/0xd30
[ 2122.881665][   T73]      kthread+0x28a/0x350
[ 2122.881665][   T73]      ret_from_fork+0x31/0x70
[ 2122.881665][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2122.881665][   T73] 
[ 2122.883969][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2122.883969][   T73]      netdev_get_by_index+0x5e/0x80
[ 2122.883969][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2122.883969][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2122.883969][   T73]      ip6_route_add+0x1c/0x140
[ 2122.883969][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2122.883969][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2122.883969][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2122.883969][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2122.883969][   T73]      netlink_rcv_skb+0x130/0x360
[ 2122.883969][   T73]      netlink_unicast+0x449/0x710
[ 2122.883969][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2122.883969][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2122.883969][   T73]      ___sys_sendmsg+0xee/0x170
[ 2122.883969][   T73]      __sys_sendmsg+0xcd/0x170
[ 2122.883969][   T73]      do_syscall_64+0xc6/0x1e0
[ 2122.883969][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2122.883969][   T73] 
[ 2122.886331][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2122.886331][   T73]      netdev_get_by_index+0x5e/0x80
[ 2122.886331][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2122.886331][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2122.886331][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2122.886331][   T73]      ipv6_add_addr+0x411/0x2000
[ 2122.886331][   T73]      inet6_addr_add+0x30e/0xa40
[ 2122.886331][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2122.886331][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2122.886331][   T73]      netlink_rcv_skb+0x130/0x360
[ 2122.886331][   T73]      netlink_unicast+0x449/0x710
[ 2122.886331][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2122.886331][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2122.886331][   T73]      ___sys_sendmsg+0xee/0x170
[ 2122.886331][   T73]      __sys_sendmsg+0xcd/0x170
[ 2122.886331][   T73]      do_syscall_64+0xc6/0x1e0
[ 2122.886331][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2122.886331][   T73] 
[ 2122.888707][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2122.888707][   T73]      netdev_get_by_index+0x5e/0x80
[ 2122.888707][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2122.888707][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2122.888707][   T73]      ip6_route_add+0x1c/0x140
[ 2122.888707][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2122.888707][   T73]      addrconf_add_dev+0xe2/0x170
[ 2122.888707][   T73]      inet6_addr_add+0x12f/0xa40
[ 2122.888707][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2122.888707][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2122.888707][   T73]      netlink_rcv_skb+0x130/0x360
[ 2122.888707][   T73]      netlink_unicast+0x449/0x710
[ 2122.888707][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2122.888707][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2122.888707][   T73]      ___sys_sendmsg+0xee/0x170
[ 2122.888707][   T73]      __sys_sendmsg+0xcd/0x170
[ 2122.888707][   T73]      do_syscall_64+0xc6/0x1e0
[ 2122.888707][   T73] 
[ 2122.891101][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2122.891101][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2122.891101][   T73]      ipv6_find_idev+0x102/0x170
[ 2122.891101][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2122.891101][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2122.891101][   T73]      netlink_rcv_skb+0x130/0x360
[ 2122.891101][   T73]      netlink_unicast+0x449/0x710
[ 2122.891101][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2122.891101][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2122.891101][   T73]      ___sys_sendmsg+0xee/0x170
[ 2122.891101][   T73]      __sys_sendmsg+0xcd/0x170
[ 2122.891101][   T73]      do_syscall_64+0xc6/0x1e0
[ 2122.891101][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2122.891101][   T73] 
[ 2122.892962][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2122.892962][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2122.892962][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2122.892962][   T73]      ipv6_find_idev+0x102/0x170
[ 2122.892962][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2122.892962][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2122.892962][   T73]      netlink_rcv_skb+0x130/0x360
[ 2122.892962][   T73]      netlink_unicast+0x449/0x710
[ 2122.892962][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2122.892962][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2122.892962][   T73]      ___sys_sendmsg+0xee/0x170
[ 2122.892962][   T73]      __sys_sendmsg+0xcd/0x170
[ 2122.892962][   T73]      do_syscall_64+0xc6/0x1e0
[ 2122.892962][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2122.892962][   T73] 
[ 2132.927690][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2132.928124][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2132.928124][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2132.928124][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2132.928124][   T73]      fib6_nh_init+0xa22/0x1580
[ 2132.928124][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2132.928124][   T73]      ip6_route_add+0x1c/0x140
[ 2132.928124][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2132.928124][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2132.928124][   T73]      netlink_rcv_skb+0x130/0x360
[ 2132.928124][   T73]      netlink_unicast+0x449/0x710
[ 2132.928124][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2132.928124][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2132.928124][   T73]      ___sys_sendmsg+0xee/0x170
[ 2132.928124][   T73]      __sys_sendmsg+0xcd/0x170
[ 2132.928124][   T73]      do_syscall_64+0xc6/0x1e0
[ 2132.928124][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2132.928124][   T73] 
[ 2132.930050][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2132.930050][   T73]      dst_init+0x84/0x4a0
[ 2132.930050][   T73]      dst_alloc+0x97/0x150
[ 2132.930050][   T73]      ip6_dst_alloc+0x23/0x90
[ 2132.930050][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2132.930050][   T73]      ip6_pol_route+0x56f/0x840
[ 2132.930050][   T73]      fib6_rule_lookup+0x456/0x630
[ 2132.930050][   T73]      ip6_route_input+0x59c/0xa50
[ 2132.930050][   T73]      ipv6_rcv+0x397/0x810
[ 2132.930050][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2132.930050][   T73]      process_backlog+0x101/0x620
[ 2132.930050][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2132.930050][   T73]      net_rx_action+0x495/0xbe0
[ 2132.930050][   T73]      __do_softirq+0x1b5/0x7f6
[ 2132.930050][   T73] 
[ 2132.931715][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2132.931715][   T73]      netdev_get_by_index+0x5e/0x80
[ 2132.931715][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2132.931715][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2132.931715][   T73]      ip6_route_add+0x1c/0x140
[ 2132.931715][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2132.931715][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2132.931715][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2132.931715][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2132.931715][   T73]      netlink_rcv_skb+0x130/0x360
[ 2132.931715][   T73]      netlink_unicast+0x449/0x710
[ 2132.931715][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2132.931715][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2132.931715][   T73]      ___sys_sendmsg+0xee/0x170
[ 2132.931715][   T73]      __sys_sendmsg+0xcd/0x170
[ 2132.931715][   T73]      do_syscall_64+0xc6/0x1e0
[ 2132.931715][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2132.931715][   T73] 
[ 2132.933725][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2132.933725][   T73]      netdev_get_by_index+0x5e/0x80
[ 2132.933725][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2132.933725][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2132.933725][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2132.933725][   T73]      ipv6_add_addr+0x411/0x2000
[ 2132.933725][   T73]      inet6_addr_add+0x30e/0xa40
[ 2132.933725][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2132.933725][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2132.933725][   T73]      netlink_rcv_skb+0x130/0x360
[ 2132.933725][   T73]      netlink_unicast+0x449/0x710
[ 2132.933725][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2132.933725][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2132.933725][   T73]      ___sys_sendmsg+0xee/0x170
[ 2132.933725][   T73]      __sys_sendmsg+0xcd/0x170
[ 2132.933725][   T73]      do_syscall_64+0xc6/0x1e0
[ 2132.933725][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2132.933725][   T73] 
[ 2132.935771][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2132.935771][   T73]      netdev_get_by_index+0x5e/0x80
[ 2132.935771][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2132.935771][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2132.935771][   T73]      ip6_route_add+0x1c/0x140
[ 2132.935771][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2132.935771][   T73]      addrconf_add_dev+0xe2/0x170
[ 2132.935771][   T73]      inet6_addr_add+0x12f/0xa40
[ 2132.935771][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2132.935771][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2132.935771][   T73]      netlink_rcv_skb+0x130/0x360
[ 2132.935771][   T73]      netlink_unicast+0x449/0x710
[ 2132.935771][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2132.935771][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2132.935771][   T73]      ___sys_sendmsg+0xee/0x170
[ 2132.935771][   T73]      __sys_sendmsg+0xcd/0x170
[ 2132.935771][   T73]      do_syscall_64+0xc6/0x1e0
[ 2132.935771][   T73] 
[ 2132.937739][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2132.937739][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2132.937739][   T73]      ipv6_find_idev+0x102/0x170
[ 2132.937739][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2132.937739][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2132.937739][   T73]      netlink_rcv_skb+0x130/0x360
[ 2132.937739][   T73]      netlink_unicast+0x449/0x710
[ 2132.937739][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2132.937739][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2132.937739][   T73]      ___sys_sendmsg+0xee/0x170
[ 2132.937739][   T73]      __sys_sendmsg+0xcd/0x170
[ 2132.937739][   T73]      do_syscall_64+0xc6/0x1e0
[ 2132.937739][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2132.937739][   T73] 
[ 2132.939272][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2132.939272][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2132.939272][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2132.939272][   T73]      ipv6_find_idev+0x102/0x170
[ 2132.939272][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2132.939272][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2132.939272][   T73]      netlink_rcv_skb+0x130/0x360
[ 2132.939272][   T73]      netlink_unicast+0x449/0x710
[ 2132.939272][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2132.939272][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2132.939272][   T73]      ___sys_sendmsg+0xee/0x170
[ 2132.939272][   T73]      __sys_sendmsg+0xcd/0x170
[ 2132.939272][   T73]      do_syscall_64+0xc6/0x1e0
[ 2132.939272][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2132.939272][   T73] 
[ 2132.940970][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2132.941251][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2132.941251][   T73]      netdev_get_by_index+0x5e/0x80
[ 2132.941251][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2132.941251][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2132.941251][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2132.941251][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2132.941251][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2132.941251][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2132.941251][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2132.941251][   T73]      addrconf_dad_begin+0x310/0x670
[ 2132.941251][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2132.941251][   T73]      process_one_work+0x84d/0x18a0
[ 2132.941251][   T73]      worker_thread+0x587/0xd30
[ 2132.941251][   T73]      kthread+0x28a/0x350
[ 2132.941251][   T73]      ret_from_fork+0x31/0x70
[ 2132.941251][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2132.941251][   T73] 
[ 2132.943169][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2132.943169][   T73]      netdev_get_by_index+0x5e/0x80
[ 2132.943169][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2132.943169][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2132.943169][   T73]      ip6_route_add+0x1c/0x140
[ 2132.943169][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2132.943169][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2132.943169][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2132.943169][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2132.943169][   T73]      netlink_rcv_skb+0x130/0x360
[ 2132.943169][   T73]      netlink_unicast+0x449/0x710
[ 2132.943169][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2132.943169][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2132.943169][   T73]      ___sys_sendmsg+0xee/0x170
[ 2132.943169][   T73]      __sys_sendmsg+0xcd/0x170
[ 2132.943169][   T73]      do_syscall_64+0xc6/0x1e0
[ 2132.943169][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2132.943169][   T73] 
[ 2132.945211][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2132.945211][   T73]      netdev_get_by_index+0x5e/0x80
[ 2132.945211][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2132.945211][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2132.945211][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2132.945211][   T73]      ipv6_add_addr+0x411/0x2000
[ 2132.945211][   T73]      inet6_addr_add+0x30e/0xa40
[ 2132.945211][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2132.945211][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2132.945211][   T73]      netlink_rcv_skb+0x130/0x360
[ 2132.945211][   T73]      netlink_unicast+0x449/0x710
[ 2132.945211][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2132.945211][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2132.945211][   T73]      ___sys_sendmsg+0xee/0x170
[ 2132.945211][   T73]      __sys_sendmsg+0xcd/0x170
[ 2132.945211][   T73]      do_syscall_64+0xc6/0x1e0
[ 2132.945211][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2132.945211][   T73] 
[ 2132.947203][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2132.947203][   T73]      netdev_get_by_index+0x5e/0x80
[ 2132.947203][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2132.947203][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2132.947203][   T73]      ip6_route_add+0x1c/0x140
[ 2132.947203][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2132.947203][   T73]      addrconf_add_dev+0xe2/0x170
[ 2132.947203][   T73]      inet6_addr_add+0x12f/0xa40
[ 2132.947203][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2132.947203][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2132.947203][   T73]      netlink_rcv_skb+0x130/0x360
[ 2132.947203][   T73]      netlink_unicast+0x449/0x710
[ 2132.947203][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2132.947203][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2132.947203][   T73]      ___sys_sendmsg+0xee/0x170
[ 2132.947203][   T73]      __sys_sendmsg+0xcd/0x170
[ 2132.947203][   T73]      do_syscall_64+0xc6/0x1e0
[ 2132.947203][   T73] 
[ 2132.949180][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2132.949180][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2132.949180][   T73]      ipv6_find_idev+0x102/0x170
[ 2132.949180][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2132.949180][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2132.949180][   T73]      netlink_rcv_skb+0x130/0x360
[ 2132.949180][   T73]      netlink_unicast+0x449/0x710
[ 2132.949180][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2132.949180][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2132.949180][   T73]      ___sys_sendmsg+0xee/0x170
[ 2132.949180][   T73]      __sys_sendmsg+0xcd/0x170
[ 2132.949180][   T73]      do_syscall_64+0xc6/0x1e0
[ 2132.949180][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2132.949180][   T73] 
[ 2132.950712][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2132.950712][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2132.950712][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2132.950712][   T73]      ipv6_find_idev+0x102/0x170
[ 2132.950712][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2132.950712][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2132.950712][   T73]      netlink_rcv_skb+0x130/0x360
[ 2132.950712][   T73]      netlink_unicast+0x449/0x710
[ 2132.950712][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2132.950712][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2132.950712][   T73]      ___sys_sendmsg+0xee/0x170
[ 2132.950712][   T73]      __sys_sendmsg+0xcd/0x170
[ 2132.950712][   T73]      do_syscall_64+0xc6/0x1e0
[ 2132.950712][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2132.950712][   T73] 
[ 2132.952405][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2132.952677][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2132.952677][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2132.952677][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2132.952677][   T73]      fib6_nh_init+0xa22/0x1580
[ 2132.952677][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2132.952677][   T73]      ip6_route_add+0x1c/0x140
[ 2132.952677][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2132.952677][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2132.952677][   T73]      netlink_rcv_skb+0x130/0x360
[ 2132.952677][   T73]      netlink_unicast+0x449/0x710
[ 2132.952677][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2132.952677][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2132.952677][   T73]      ___sys_sendmsg+0xee/0x170
[ 2132.952677][   T73]      __sys_sendmsg+0xcd/0x170
[ 2132.952677][   T73]      do_syscall_64+0xc6/0x1e0
[ 2132.952677][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2132.952677][   T73] 
[ 2132.954755][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2132.954755][   T73]      dst_init+0x84/0x4a0
[ 2132.954755][   T73]      dst_alloc+0x97/0x150
[ 2132.954755][   T73]      ip6_dst_alloc+0x23/0x90
[ 2132.954755][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2132.954755][   T73]      ip6_pol_route+0x56f/0x840
[ 2132.954755][   T73]      fib6_rule_lookup+0x456/0x630
[ 2132.954755][   T73]      ip6_route_input+0x59c/0xa50
[ 2132.954755][   T73]      ipv6_rcv+0x397/0x810
[ 2132.954755][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2132.954755][   T73]      process_backlog+0x101/0x620
[ 2132.954755][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2132.954755][   T73]      net_rx_action+0x495/0xbe0
[ 2132.954755][   T73]      __do_softirq+0x1b5/0x7f6
[ 2132.954755][   T73] 
[ 2132.956574][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2132.956574][   T73]      netdev_get_by_index+0x5e/0x80
[ 2132.956574][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2132.956574][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2132.956574][   T73]      ip6_route_add+0x1c/0x140
[ 2132.956574][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2132.956574][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2132.956574][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2132.956574][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2132.956574][   T73]      netlink_rcv_skb+0x130/0x360
[ 2132.956574][   T73]      netlink_unicast+0x449/0x710
[ 2132.956574][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2132.956574][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2132.956574][   T73]      ___sys_sendmsg+0xee/0x170
[ 2132.956574][   T73]      __sys_sendmsg+0xcd/0x170
[ 2132.956574][   T73]      do_syscall_64+0xc6/0x1e0
[ 2132.956574][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2132.956574][   T73] 
[ 2132.958742][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2132.958742][   T73]      netdev_get_by_index+0x5e/0x80
[ 2132.958742][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2132.958742][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2132.958742][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2132.958742][   T73]      ipv6_add_addr+0x411/0x2000
[ 2132.958742][   T73]      inet6_addr_add+0x30e/0xa40
[ 2132.958742][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2132.958742][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2132.958742][   T73]      netlink_rcv_skb+0x130/0x360
[ 2132.958742][   T73]      netlink_unicast+0x449/0x710
[ 2132.958742][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2132.958742][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2132.958742][   T73]      ___sys_sendmsg+0xee/0x170
[ 2132.958742][   T73]      __sys_sendmsg+0xcd/0x170
[ 2132.958742][   T73]      do_syscall_64+0xc6/0x1e0
[ 2132.958742][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2132.958742][   T73] 
[ 2132.961056][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2132.961056][   T73]      netdev_get_by_index+0x5e/0x80
[ 2132.961056][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2132.961056][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2132.961056][   T73]      ip6_route_add+0x1c/0x140
[ 2132.961056][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2132.961056][   T73]      addrconf_add_dev+0xe2/0x170
[ 2132.961056][   T73]      inet6_addr_add+0x12f/0xa40
[ 2132.961056][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2132.961056][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2132.961056][   T73]      netlink_rcv_skb+0x130/0x360
[ 2132.961056][   T73]      netlink_unicast+0x449/0x710
[ 2132.961056][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2132.961056][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2132.961056][   T73]      ___sys_sendmsg+0xee/0x170
[ 2132.961056][   T73]      __sys_sendmsg+0xcd/0x170
[ 2132.961056][   T73]      do_syscall_64+0xc6/0x1e0
[ 2132.961056][   T73] 
[ 2132.963196][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2132.963196][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2132.963196][   T73]      ipv6_find_idev+0x102/0x170
[ 2132.963196][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2132.963196][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2132.963196][   T73]      netlink_rcv_skb+0x130/0x360
[ 2132.963196][   T73]      netlink_unicast+0x449/0x710
[ 2132.963196][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2132.963196][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2132.963196][   T73]      ___sys_sendmsg+0xee/0x170
[ 2132.963196][   T73]      __sys_sendmsg+0xcd/0x170
[ 2132.963196][   T73]      do_syscall_64+0xc6/0x1e0
[ 2132.963196][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2132.963196][   T73] 
[ 2132.964923][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2132.964923][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2132.964923][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2132.964923][   T73]      ipv6_find_idev+0x102/0x170
[ 2132.964923][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2132.964923][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2132.964923][   T73]      netlink_rcv_skb+0x130/0x360
[ 2132.964923][   T73]      netlink_unicast+0x449/0x710
[ 2132.964923][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2132.964923][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2132.964923][   T73]      ___sys_sendmsg+0xee/0x170
[ 2132.964923][   T73]      __sys_sendmsg+0xcd/0x170
[ 2132.964923][   T73]      do_syscall_64+0xc6/0x1e0
[ 2132.964923][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2132.964923][   T73] 
[ 2132.966788][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2132.967132][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2132.967132][   T73]      netdev_get_by_index+0x5e/0x80
[ 2132.967132][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2132.967132][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2132.967132][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2132.967132][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2132.967132][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2132.967132][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2132.967132][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2132.967132][   T73]      addrconf_dad_begin+0x310/0x670
[ 2132.967132][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2132.967132][   T73]      process_one_work+0x84d/0x18a0
[ 2132.967132][   T73]      worker_thread+0x587/0xd30
[ 2132.967132][   T73]      kthread+0x28a/0x350
[ 2132.967132][   T73]      ret_from_fork+0x31/0x70
[ 2132.967132][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2132.967132][   T73] 
[ 2132.969235][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2132.969235][   T73]      netdev_get_by_index+0x5e/0x80
[ 2132.969235][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2132.969235][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2132.969235][   T73]      ip6_route_add+0x1c/0x140
[ 2132.969235][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2132.969235][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2132.969235][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2132.969235][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2132.969235][   T73]      netlink_rcv_skb+0x130/0x360
[ 2132.969235][   T73]      netlink_unicast+0x449/0x710
[ 2132.969235][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2132.969235][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2132.969235][   T73]      ___sys_sendmsg+0xee/0x170
[ 2132.969235][   T73]      __sys_sendmsg+0xcd/0x170
[ 2132.969235][   T73]      do_syscall_64+0xc6/0x1e0
[ 2132.969235][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2132.969235][   T73] 
[ 2132.971532][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2132.971532][   T73]      netdev_get_by_index+0x5e/0x80
[ 2132.971532][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2132.971532][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2132.971532][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2132.971532][   T73]      ipv6_add_addr+0x411/0x2000
[ 2132.971532][   T73]      inet6_addr_add+0x30e/0xa40
[ 2132.971532][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2132.971532][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2132.971532][   T73]      netlink_rcv_skb+0x130/0x360
[ 2132.971532][   T73]      netlink_unicast+0x449/0x710
[ 2132.971532][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2132.971532][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2132.971532][   T73]      ___sys_sendmsg+0xee/0x170
[ 2132.971532][   T73]      __sys_sendmsg+0xcd/0x170
[ 2132.971532][   T73]      do_syscall_64+0xc6/0x1e0
[ 2132.971532][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2132.971532][   T73] 
[ 2132.973777][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2132.973777][   T73]      netdev_get_by_index+0x5e/0x80
[ 2132.973777][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2132.973777][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2132.973777][   T73]      ip6_route_add+0x1c/0x140
[ 2132.973777][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2132.973777][   T73]      addrconf_add_dev+0xe2/0x170
[ 2132.973777][   T73]      inet6_addr_add+0x12f/0xa40
[ 2132.973777][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2132.973777][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2132.973777][   T73]      netlink_rcv_skb+0x130/0x360
[ 2132.973777][   T73]      netlink_unicast+0x449/0x710
[ 2132.973777][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2132.973777][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2132.973777][   T73]      ___sys_sendmsg+0xee/0x170
[ 2132.973777][   T73]      __sys_sendmsg+0xcd/0x170
[ 2132.973777][   T73]      do_syscall_64+0xc6/0x1e0
[ 2132.973777][   T73] 
[ 2132.975988][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2132.975988][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2132.975988][   T73]      ipv6_find_idev+0x102/0x170
[ 2132.975988][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2132.975988][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2132.975988][   T73]      netlink_rcv_skb+0x130/0x360
[ 2132.975988][   T73]      netlink_unicast+0x449/0x710
[ 2132.975988][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2132.975988][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2132.975988][   T73]      ___sys_sendmsg+0xee/0x170
[ 2132.975988][   T73]      __sys_sendmsg+0xcd/0x170
[ 2132.975988][   T73]      do_syscall_64+0xc6/0x1e0
[ 2132.975988][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2132.975988][   T73] 
[ 2132.977710][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2132.977710][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2132.977710][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2132.977710][   T73]      ipv6_find_idev+0x102/0x170
[ 2132.977710][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2132.977710][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2132.977710][   T73]      netlink_rcv_skb+0x130/0x360
[ 2132.977710][   T73]      netlink_unicast+0x449/0x710
[ 2132.977710][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2132.977710][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2132.977710][   T73]      ___sys_sendmsg+0xee/0x170
[ 2132.977710][   T73]      __sys_sendmsg+0xcd/0x170
[ 2132.977710][   T73]      do_syscall_64+0xc6/0x1e0
[ 2132.977710][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2132.977710][   T73] 
[ 2143.215749][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2143.216209][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2143.216209][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2143.216209][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2143.216209][   T73]      fib6_nh_init+0xa22/0x1580
[ 2143.216209][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2143.216209][   T73]      ip6_route_add+0x1c/0x140
[ 2143.216209][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2143.216209][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2143.216209][   T73]      netlink_rcv_skb+0x130/0x360
[ 2143.216209][   T73]      netlink_unicast+0x449/0x710
[ 2143.216209][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2143.216209][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2143.216209][   T73]      ___sys_sendmsg+0xee/0x170
[ 2143.216209][   T73]      __sys_sendmsg+0xcd/0x170
[ 2143.216209][   T73]      do_syscall_64+0xc6/0x1e0
[ 2143.216209][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2143.216209][   T73] 
[ 2143.218110][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2143.218110][   T73]      dst_init+0x84/0x4a0
[ 2143.218110][   T73]      dst_alloc+0x97/0x150
[ 2143.218110][   T73]      ip6_dst_alloc+0x23/0x90
[ 2143.218110][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2143.218110][   T73]      ip6_pol_route+0x56f/0x840
[ 2143.218110][   T73]      fib6_rule_lookup+0x456/0x630
[ 2143.218110][   T73]      ip6_route_input+0x59c/0xa50
[ 2143.218110][   T73]      ipv6_rcv+0x397/0x810
[ 2143.218110][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2143.218110][   T73]      process_backlog+0x101/0x620
[ 2143.218110][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2143.218110][   T73]      net_rx_action+0x495/0xbe0
[ 2143.218110][   T73]      __do_softirq+0x1b5/0x7f6
[ 2143.218110][   T73] 
[ 2143.219759][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2143.219759][   T73]      netdev_get_by_index+0x5e/0x80
[ 2143.219759][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2143.219759][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2143.219759][   T73]      ip6_route_add+0x1c/0x140
[ 2143.219759][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2143.219759][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2143.219759][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2143.219759][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2143.219759][   T73]      netlink_rcv_skb+0x130/0x360
[ 2143.219759][   T73]      netlink_unicast+0x449/0x710
[ 2143.219759][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2143.219759][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2143.219759][   T73]      ___sys_sendmsg+0xee/0x170
[ 2143.219759][   T73]      __sys_sendmsg+0xcd/0x170
[ 2143.219759][   T73]      do_syscall_64+0xc6/0x1e0
[ 2143.219759][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2143.219759][   T73] 
[ 2143.221783][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2143.221783][   T73]      netdev_get_by_index+0x5e/0x80
[ 2143.221783][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2143.221783][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2143.221783][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2143.221783][   T73]      ipv6_add_addr+0x411/0x2000
[ 2143.221783][   T73]      inet6_addr_add+0x30e/0xa40
[ 2143.221783][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2143.221783][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2143.221783][   T73]      netlink_rcv_skb+0x130/0x360
[ 2143.221783][   T73]      netlink_unicast+0x449/0x710
[ 2143.221783][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2143.221783][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2143.221783][   T73]      ___sys_sendmsg+0xee/0x170
[ 2143.221783][   T73]      __sys_sendmsg+0xcd/0x170
[ 2143.221783][   T73]      do_syscall_64+0xc6/0x1e0
[ 2143.221783][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2143.221783][   T73] 
[ 2143.223823][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2143.223823][   T73]      netdev_get_by_index+0x5e/0x80
[ 2143.223823][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2143.223823][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2143.223823][   T73]      ip6_route_add+0x1c/0x140
[ 2143.223823][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2143.223823][   T73]      addrconf_add_dev+0xe2/0x170
[ 2143.223823][   T73]      inet6_addr_add+0x12f/0xa40
[ 2143.223823][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2143.223823][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2143.223823][   T73]      netlink_rcv_skb+0x130/0x360
[ 2143.223823][   T73]      netlink_unicast+0x449/0x710
[ 2143.223823][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2143.223823][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2143.223823][   T73]      ___sys_sendmsg+0xee/0x170
[ 2143.223823][   T73]      __sys_sendmsg+0xcd/0x170
[ 2143.223823][   T73]      do_syscall_64+0xc6/0x1e0
[ 2143.223823][   T73] 
[ 2143.225809][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2143.225809][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2143.225809][   T73]      ipv6_find_idev+0x102/0x170
[ 2143.225809][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2143.225809][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2143.225809][   T73]      netlink_rcv_skb+0x130/0x360
[ 2143.225809][   T73]      netlink_unicast+0x449/0x710
[ 2143.225809][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2143.225809][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2143.225809][   T73]      ___sys_sendmsg+0xee/0x170
[ 2143.225809][   T73]      __sys_sendmsg+0xcd/0x170
[ 2143.225809][   T73]      do_syscall_64+0xc6/0x1e0
[ 2143.225809][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2143.225809][   T73] 
[ 2143.227403][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2143.227403][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2143.227403][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2143.227403][   T73]      ipv6_find_idev+0x102/0x170
[ 2143.227403][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2143.227403][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2143.227403][   T73]      netlink_rcv_skb+0x130/0x360
[ 2143.227403][   T73]      netlink_unicast+0x449/0x710
[ 2143.227403][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2143.227403][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2143.227403][   T73]      ___sys_sendmsg+0xee/0x170
[ 2143.227403][   T73]      __sys_sendmsg+0xcd/0x170
[ 2143.227403][   T73]      do_syscall_64+0xc6/0x1e0
[ 2143.227403][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2143.227403][   T73] 
[ 2143.229124][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2143.229420][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2143.229420][   T73]      netdev_get_by_index+0x5e/0x80
[ 2143.229420][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2143.229420][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2143.229420][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2143.229420][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2143.229420][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2143.229420][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2143.229420][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2143.229420][   T73]      addrconf_dad_begin+0x310/0x670
[ 2143.229420][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2143.229420][   T73]      process_one_work+0x84d/0x18a0
[ 2143.229420][   T73]      worker_thread+0x587/0xd30
[ 2143.229420][   T73]      kthread+0x28a/0x350
[ 2143.229420][   T73]      ret_from_fork+0x31/0x70
[ 2143.229420][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2143.229420][   T73] 
[ 2143.231370][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2143.231370][   T73]      netdev_get_by_index+0x5e/0x80
[ 2143.231370][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2143.231370][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2143.231370][   T73]      ip6_route_add+0x1c/0x140
[ 2143.231370][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2143.231370][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2143.231370][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2143.231370][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2143.231370][   T73]      netlink_rcv_skb+0x130/0x360
[ 2143.231370][   T73]      netlink_unicast+0x449/0x710
[ 2143.231370][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2143.231370][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2143.231370][   T73]      ___sys_sendmsg+0xee/0x170
[ 2143.231370][   T73]      __sys_sendmsg+0xcd/0x170
[ 2143.231370][   T73]      do_syscall_64+0xc6/0x1e0
[ 2143.231370][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2143.231370][   T73] 
[ 2143.233934][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2143.233934][   T73]      netdev_get_by_index+0x5e/0x80
[ 2143.233934][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2143.233934][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2143.233934][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2143.233934][   T73]      ipv6_add_addr+0x411/0x2000
[ 2143.233934][   T73]      inet6_addr_add+0x30e/0xa40
[ 2143.233934][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2143.233934][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2143.233934][   T73]      netlink_rcv_skb+0x130/0x360
[ 2143.233934][   T73]      netlink_unicast+0x449/0x710
[ 2143.233934][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2143.233934][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2143.233934][   T73]      ___sys_sendmsg+0xee/0x170
[ 2143.233934][   T73]      __sys_sendmsg+0xcd/0x170
[ 2143.233934][   T73]      do_syscall_64+0xc6/0x1e0
[ 2143.233934][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2143.233934][   T73] 
[ 2143.235942][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2143.235942][   T73]      netdev_get_by_index+0x5e/0x80
[ 2143.235942][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2143.235942][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2143.235942][   T73]      ip6_route_add+0x1c/0x140
[ 2143.235942][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2143.235942][   T73]      addrconf_add_dev+0xe2/0x170
[ 2143.235942][   T73]      inet6_addr_add+0x12f/0xa40
[ 2143.235942][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2143.235942][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2143.235942][   T73]      netlink_rcv_skb+0x130/0x360
[ 2143.235942][   T73]      netlink_unicast+0x449/0x710
[ 2143.235942][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2143.235942][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2143.235942][   T73]      ___sys_sendmsg+0xee/0x170
[ 2143.235942][   T73]      __sys_sendmsg+0xcd/0x170
[ 2143.235942][   T73]      do_syscall_64+0xc6/0x1e0
[ 2143.235942][   T73] 
[ 2143.237908][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2143.237908][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2143.237908][   T73]      ipv6_find_idev+0x102/0x170
[ 2143.237908][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2143.237908][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2143.237908][   T73]      netlink_rcv_skb+0x130/0x360
[ 2143.237908][   T73]      netlink_unicast+0x449/0x710
[ 2143.237908][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2143.237908][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2143.237908][   T73]      ___sys_sendmsg+0xee/0x170
[ 2143.237908][   T73]      __sys_sendmsg+0xcd/0x170
[ 2143.237908][   T73]      do_syscall_64+0xc6/0x1e0
[ 2143.237908][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2143.237908][   T73] 
[ 2143.239866][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2143.239866][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2143.239866][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2143.239866][   T73]      ipv6_find_idev+0x102/0x170
[ 2143.239866][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2143.239866][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2143.239866][   T73]      netlink_rcv_skb+0x130/0x360
[ 2143.239866][   T73]      netlink_unicast+0x449/0x710
[ 2143.239866][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2143.239866][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2143.239866][   T73]      ___sys_sendmsg+0xee/0x170
[ 2143.239866][   T73]      __sys_sendmsg+0xcd/0x170
[ 2143.239866][   T73]      do_syscall_64+0xc6/0x1e0
[ 2143.239866][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2143.239866][   T73] 
[ 2143.241571][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2143.241856][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2143.241856][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2143.241856][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2143.241856][   T73]      fib6_nh_init+0xa22/0x1580
[ 2143.241856][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2143.241856][   T73]      ip6_route_add+0x1c/0x140
[ 2143.241856][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2143.241856][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2143.241856][   T73]      netlink_rcv_skb+0x130/0x360
[ 2143.241856][   T73]      netlink_unicast+0x449/0x710
[ 2143.241856][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2143.241856][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2143.241856][   T73]      ___sys_sendmsg+0xee/0x170
[ 2143.241856][   T73]      __sys_sendmsg+0xcd/0x170
[ 2143.241856][   T73]      do_syscall_64+0xc6/0x1e0
[ 2143.241856][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2143.241856][   T73] 
[ 2143.243925][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2143.243925][   T73]      dst_init+0x84/0x4a0
[ 2143.243925][   T73]      dst_alloc+0x97/0x150
[ 2143.243925][   T73]      ip6_dst_alloc+0x23/0x90
[ 2143.243925][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2143.243925][   T73]      ip6_pol_route+0x56f/0x840
[ 2143.243925][   T73]      fib6_rule_lookup+0x456/0x630
[ 2143.243925][   T73]      ip6_route_input+0x59c/0xa50
[ 2143.243925][   T73]      ipv6_rcv+0x397/0x810
[ 2143.243925][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2143.243925][   T73]      process_backlog+0x101/0x620
[ 2143.243925][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2143.243925][   T73]      net_rx_action+0x495/0xbe0
[ 2143.243925][   T73]      __do_softirq+0x1b5/0x7f6
[ 2143.243925][   T73] 
[ 2143.245830][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2143.245830][   T73]      netdev_get_by_index+0x5e/0x80
[ 2143.245830][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2143.245830][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2143.245830][   T73]      ip6_route_add+0x1c/0x140
[ 2143.245830][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2143.245830][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2143.245830][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2143.245830][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2143.245830][   T73]      netlink_rcv_skb+0x130/0x360
[ 2143.245830][   T73]      netlink_unicast+0x449/0x710
[ 2143.245830][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2143.245830][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2143.245830][   T73]      ___sys_sendmsg+0xee/0x170
[ 2143.245830][   T73]      __sys_sendmsg+0xcd/0x170
[ 2143.245830][   T73]      do_syscall_64+0xc6/0x1e0
[ 2143.245830][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2143.245830][   T73] 
[ 2143.248005][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2143.248005][   T73]      netdev_get_by_index+0x5e/0x80
[ 2143.248005][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2143.248005][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2143.248005][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2143.248005][   T73]      ipv6_add_addr+0x411/0x2000
[ 2143.248005][   T73]      inet6_addr_add+0x30e/0xa40
[ 2143.248005][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2143.248005][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2143.248005][   T73]      netlink_rcv_skb+0x130/0x360
[ 2143.248005][   T73]      netlink_unicast+0x449/0x710
[ 2143.248005][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2143.248005][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2143.248005][   T73]      ___sys_sendmsg+0xee/0x170
[ 2143.248005][   T73]      __sys_sendmsg+0xcd/0x170
[ 2143.248005][   T73]      do_syscall_64+0xc6/0x1e0
[ 2143.248005][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2143.248005][   T73] 
[ 2143.250248][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2143.250248][   T73]      netdev_get_by_index+0x5e/0x80
[ 2143.250248][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2143.250248][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2143.250248][   T73]      ip6_route_add+0x1c/0x140
[ 2143.250248][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2143.250248][   T73]      addrconf_add_dev+0xe2/0x170
[ 2143.250248][   T73]      inet6_addr_add+0x12f/0xa40
[ 2143.250248][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2143.250248][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2143.250248][   T73]      netlink_rcv_skb+0x130/0x360
[ 2143.250248][   T73]      netlink_unicast+0x449/0x710
[ 2143.250248][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2143.250248][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2143.250248][   T73]      ___sys_sendmsg+0xee/0x170
[ 2143.250248][   T73]      __sys_sendmsg+0xcd/0x170
[ 2143.250248][   T73]      do_syscall_64+0xc6/0x1e0
[ 2143.250248][   T73] 
[ 2143.252457][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2143.252457][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2143.252457][   T73]      ipv6_find_idev+0x102/0x170
[ 2143.252457][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2143.252457][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2143.252457][   T73]      netlink_rcv_skb+0x130/0x360
[ 2143.252457][   T73]      netlink_unicast+0x449/0x710
[ 2143.252457][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2143.252457][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2143.252457][   T73]      ___sys_sendmsg+0xee/0x170
[ 2143.252457][   T73]      __sys_sendmsg+0xcd/0x170
[ 2143.252457][   T73]      do_syscall_64+0xc6/0x1e0
[ 2143.252457][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2143.252457][   T73] 
[ 2143.254240][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2143.254240][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2143.254240][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2143.254240][   T73]      ipv6_find_idev+0x102/0x170
[ 2143.254240][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2143.254240][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2143.254240][   T73]      netlink_rcv_skb+0x130/0x360
[ 2143.254240][   T73]      netlink_unicast+0x449/0x710
[ 2143.254240][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2143.254240][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2143.254240][   T73]      ___sys_sendmsg+0xee/0x170
[ 2143.254240][   T73]      __sys_sendmsg+0xcd/0x170
[ 2143.254240][   T73]      do_syscall_64+0xc6/0x1e0
[ 2143.254240][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2143.254240][   T73] 
[ 2143.256160][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2143.256505][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2143.256505][   T73]      netdev_get_by_index+0x5e/0x80
[ 2143.256505][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2143.256505][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2143.256505][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2143.256505][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2143.256505][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2143.256505][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2143.256505][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2143.256505][   T73]      addrconf_dad_begin+0x310/0x670
[ 2143.256505][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2143.256505][   T73]      process_one_work+0x84d/0x18a0
[ 2143.256505][   T73]      worker_thread+0x587/0xd30
[ 2143.256505][   T73]      kthread+0x28a/0x350
[ 2143.256505][   T73]      ret_from_fork+0x31/0x70
[ 2143.256505][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2143.256505][   T73] 
[ 2143.258638][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2143.258638][   T73]      netdev_get_by_index+0x5e/0x80
[ 2143.258638][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2143.258638][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2143.258638][   T73]      ip6_route_add+0x1c/0x140
[ 2143.258638][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2143.258638][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2143.258638][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2143.258638][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2143.258638][   T73]      netlink_rcv_skb+0x130/0x360
[ 2143.258638][   T73]      netlink_unicast+0x449/0x710
[ 2143.258638][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2143.258638][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2143.258638][   T73]      ___sys_sendmsg+0xee/0x170
[ 2143.258638][   T73]      __sys_sendmsg+0xcd/0x170
[ 2143.258638][   T73]      do_syscall_64+0xc6/0x1e0
[ 2143.258638][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2143.258638][   T73] 
[ 2143.260894][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2143.260894][   T73]      netdev_get_by_index+0x5e/0x80
[ 2143.260894][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2143.260894][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2143.260894][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2143.260894][   T73]      ipv6_add_addr+0x411/0x2000
[ 2143.260894][   T73]      inet6_addr_add+0x30e/0xa40
[ 2143.260894][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2143.260894][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2143.260894][   T73]      netlink_rcv_skb+0x130/0x360
[ 2143.260894][   T73]      netlink_unicast+0x449/0x710
[ 2143.260894][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2143.260894][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2143.260894][   T73]      ___sys_sendmsg+0xee/0x170
[ 2143.260894][   T73]      __sys_sendmsg+0xcd/0x170
[ 2143.260894][   T73]      do_syscall_64+0xc6/0x1e0
[ 2143.260894][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2143.260894][   T73] 
[ 2143.263141][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2143.263141][   T73]      netdev_get_by_index+0x5e/0x80
[ 2143.263141][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2143.263141][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2143.263141][   T73]      ip6_route_add+0x1c/0x140
[ 2143.263141][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2143.263141][   T73]      addrconf_add_dev+0xe2/0x170
[ 2143.263141][   T73]      inet6_addr_add+0x12f/0xa40
[ 2143.263141][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2143.263141][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2143.263141][   T73]      netlink_rcv_skb+0x130/0x360
[ 2143.263141][   T73]      netlink_unicast+0x449/0x710
[ 2143.263141][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2143.263141][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2143.263141][   T73]      ___sys_sendmsg+0xee/0x170
[ 2143.263141][   T73]      __sys_sendmsg+0xcd/0x170
[ 2143.263141][   T73]      do_syscall_64+0xc6/0x1e0
[ 2143.263141][   T73] 
[ 2143.265415][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2143.265415][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2143.265415][   T73]      ipv6_find_idev+0x102/0x170
[ 2143.265415][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2143.265415][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2143.265415][   T73]      netlink_rcv_skb+0x130/0x360
[ 2143.265415][   T73]      netlink_unicast+0x449/0x710
[ 2143.265415][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2143.265415][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2143.265415][   T73]      ___sys_sendmsg+0xee/0x170
[ 2143.265415][   T73]      __sys_sendmsg+0xcd/0x170
[ 2143.265415][   T73]      do_syscall_64+0xc6/0x1e0
[ 2143.265415][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2143.265415][   T73] 
[ 2143.267156][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2143.267156][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2143.267156][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2143.267156][   T73]      ipv6_find_idev+0x102/0x170
[ 2143.267156][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2143.267156][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2143.267156][   T73]      netlink_rcv_skb+0x130/0x360
[ 2143.267156][   T73]      netlink_unicast+0x449/0x710
[ 2143.267156][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2143.267156][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2143.267156][   T73]      ___sys_sendmsg+0xee/0x170
[ 2143.267156][   T73]      __sys_sendmsg+0xcd/0x170
[ 2143.267156][   T73]      do_syscall_64+0xc6/0x1e0
[ 2143.267156][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2143.267156][   T73] 
[ 2153.511700][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2153.512139][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2153.512139][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2153.512139][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2153.512139][   T73]      fib6_nh_init+0xa22/0x1580
[ 2153.512139][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2153.512139][   T73]      ip6_route_add+0x1c/0x140
[ 2153.512139][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2153.512139][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2153.512139][   T73]      netlink_rcv_skb+0x130/0x360
[ 2153.512139][   T73]      netlink_unicast+0x449/0x710
[ 2153.512139][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2153.512139][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2153.512139][   T73]      ___sys_sendmsg+0xee/0x170
[ 2153.512139][   T73]      __sys_sendmsg+0xcd/0x170
[ 2153.512139][   T73]      do_syscall_64+0xc6/0x1e0
[ 2153.512139][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2153.512139][   T73] 
[ 2153.514096][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2153.514096][   T73]      dst_init+0x84/0x4a0
[ 2153.514096][   T73]      dst_alloc+0x97/0x150
[ 2153.514096][   T73]      ip6_dst_alloc+0x23/0x90
[ 2153.514096][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2153.514096][   T73]      ip6_pol_route+0x56f/0x840
[ 2153.514096][   T73]      fib6_rule_lookup+0x456/0x630
[ 2153.514096][   T73]      ip6_route_input+0x59c/0xa50
[ 2153.514096][   T73]      ipv6_rcv+0x397/0x810
[ 2153.514096][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2153.514096][   T73]      process_backlog+0x101/0x620
[ 2153.514096][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2153.514096][   T73]      net_rx_action+0x495/0xbe0
[ 2153.514096][   T73]      __do_softirq+0x1b5/0x7f6
[ 2153.514096][   T73] 
[ 2153.515790][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2153.515790][   T73]      netdev_get_by_index+0x5e/0x80
[ 2153.515790][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2153.515790][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2153.515790][   T73]      ip6_route_add+0x1c/0x140
[ 2153.515790][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2153.515790][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2153.515790][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2153.515790][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2153.515790][   T73]      netlink_rcv_skb+0x130/0x360
[ 2153.515790][   T73]      netlink_unicast+0x449/0x710
[ 2153.515790][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2153.515790][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2153.515790][   T73]      ___sys_sendmsg+0xee/0x170
[ 2153.515790][   T73]      __sys_sendmsg+0xcd/0x170
[ 2153.515790][   T73]      do_syscall_64+0xc6/0x1e0
[ 2153.515790][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2153.515790][   T73] 
[ 2153.517810][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2153.517810][   T73]      netdev_get_by_index+0x5e/0x80
[ 2153.517810][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2153.517810][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2153.517810][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2153.517810][   T73]      ipv6_add_addr+0x411/0x2000
[ 2153.517810][   T73]      inet6_addr_add+0x30e/0xa40
[ 2153.517810][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2153.517810][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2153.517810][   T73]      netlink_rcv_skb+0x130/0x360
[ 2153.517810][   T73]      netlink_unicast+0x449/0x710
[ 2153.517810][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2153.517810][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2153.517810][   T73]      ___sys_sendmsg+0xee/0x170
[ 2153.517810][   T73]      __sys_sendmsg+0xcd/0x170
[ 2153.517810][   T73]      do_syscall_64+0xc6/0x1e0
[ 2153.517810][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2153.517810][   T73] 
[ 2153.519840][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2153.519840][   T73]      netdev_get_by_index+0x5e/0x80
[ 2153.519840][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2153.519840][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2153.519840][   T73]      ip6_route_add+0x1c/0x140
[ 2153.519840][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2153.519840][   T73]      addrconf_add_dev+0xe2/0x170
[ 2153.519840][   T73]      inet6_addr_add+0x12f/0xa40
[ 2153.519840][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2153.519840][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2153.519840][   T73]      netlink_rcv_skb+0x130/0x360
[ 2153.519840][   T73]      netlink_unicast+0x449/0x710
[ 2153.519840][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2153.519840][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2153.519840][   T73]      ___sys_sendmsg+0xee/0x170
[ 2153.519840][   T73]      __sys_sendmsg+0xcd/0x170
[ 2153.519840][   T73]      do_syscall_64+0xc6/0x1e0
[ 2153.519840][   T73] 
[ 2153.521829][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2153.521829][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2153.521829][   T73]      ipv6_find_idev+0x102/0x170
[ 2153.521829][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2153.521829][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2153.521829][   T73]      netlink_rcv_skb+0x130/0x360
[ 2153.521829][   T73]      netlink_unicast+0x449/0x710
[ 2153.521829][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2153.521829][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2153.521829][   T73]      ___sys_sendmsg+0xee/0x170
[ 2153.521829][   T73]      __sys_sendmsg+0xcd/0x170
[ 2153.521829][   T73]      do_syscall_64+0xc6/0x1e0
[ 2153.521829][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2153.521829][   T73] 
[ 2153.523379][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2153.523379][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2153.523379][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2153.523379][   T73]      ipv6_find_idev+0x102/0x170
[ 2153.523379][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2153.523379][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2153.523379][   T73]      netlink_rcv_skb+0x130/0x360
[ 2153.523379][   T73]      netlink_unicast+0x449/0x710
[ 2153.523379][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2153.523379][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2153.523379][   T73]      ___sys_sendmsg+0xee/0x170
[ 2153.523379][   T73]      __sys_sendmsg+0xcd/0x170
[ 2153.523379][   T73]      do_syscall_64+0xc6/0x1e0
[ 2153.523379][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2153.523379][   T73] 
[ 2153.525122][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2153.525420][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2153.525420][   T73]      netdev_get_by_index+0x5e/0x80
[ 2153.525420][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2153.525420][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2153.525420][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2153.525420][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2153.525420][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2153.525420][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2153.525420][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2153.525420][   T73]      addrconf_dad_begin+0x310/0x670
[ 2153.525420][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2153.525420][   T73]      process_one_work+0x84d/0x18a0
[ 2153.525420][   T73]      worker_thread+0x587/0xd30
[ 2153.525420][   T73]      kthread+0x28a/0x350
[ 2153.525420][   T73]      ret_from_fork+0x31/0x70
[ 2153.525420][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2153.525420][   T73] 
[ 2153.527346][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2153.527346][   T73]      netdev_get_by_index+0x5e/0x80
[ 2153.527346][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2153.527346][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2153.527346][   T73]      ip6_route_add+0x1c/0x140
[ 2153.527346][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2153.527346][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2153.527346][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2153.527346][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2153.527346][   T73]      netlink_rcv_skb+0x130/0x360
[ 2153.527346][   T73]      netlink_unicast+0x449/0x710
[ 2153.527346][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2153.527346][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2153.527346][   T73]      ___sys_sendmsg+0xee/0x170
[ 2153.527346][   T73]      __sys_sendmsg+0xcd/0x170
[ 2153.527346][   T73]      do_syscall_64+0xc6/0x1e0
[ 2153.527346][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2153.527346][   T73] 
[ 2153.529375][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2153.529375][   T73]      netdev_get_by_index+0x5e/0x80
[ 2153.529375][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2153.529375][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2153.529375][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2153.529375][   T73]      ipv6_add_addr+0x411/0x2000
[ 2153.529375][   T73]      inet6_addr_add+0x30e/0xa40
[ 2153.529375][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2153.529375][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2153.529375][   T73]      netlink_rcv_skb+0x130/0x360
[ 2153.529375][   T73]      netlink_unicast+0x449/0x710
[ 2153.529375][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2153.529375][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2153.529375][   T73]      ___sys_sendmsg+0xee/0x170
[ 2153.529375][   T73]      __sys_sendmsg+0xcd/0x170
[ 2153.529375][   T73]      do_syscall_64+0xc6/0x1e0
[ 2153.529375][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2153.529375][   T73] 
[ 2153.531401][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2153.531401][   T73]      netdev_get_by_index+0x5e/0x80
[ 2153.531401][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2153.531401][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2153.531401][   T73]      ip6_route_add+0x1c/0x140
[ 2153.531401][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2153.531401][   T73]      addrconf_add_dev+0xe2/0x170
[ 2153.531401][   T73]      inet6_addr_add+0x12f/0xa40
[ 2153.531401][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2153.531401][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2153.531401][   T73]      netlink_rcv_skb+0x130/0x360
[ 2153.531401][   T73]      netlink_unicast+0x449/0x710
[ 2153.531401][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2153.531401][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2153.531401][   T73]      ___sys_sendmsg+0xee/0x170
[ 2153.531401][   T73]      __sys_sendmsg+0xcd/0x170
[ 2153.531401][   T73]      do_syscall_64+0xc6/0x1e0
[ 2153.531401][   T73] 
[ 2153.533384][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2153.533384][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2153.533384][   T73]      ipv6_find_idev+0x102/0x170
[ 2153.533384][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2153.533384][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2153.533384][   T73]      netlink_rcv_skb+0x130/0x360
[ 2153.533384][   T73]      netlink_unicast+0x449/0x710
[ 2153.533384][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2153.533384][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2153.533384][   T73]      ___sys_sendmsg+0xee/0x170
[ 2153.533384][   T73]      __sys_sendmsg+0xcd/0x170
[ 2153.533384][   T73]      do_syscall_64+0xc6/0x1e0
[ 2153.533384][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2153.533384][   T73] 
[ 2153.534952][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2153.534952][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2153.534952][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2153.534952][   T73]      ipv6_find_idev+0x102/0x170
[ 2153.534952][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2153.534952][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2153.534952][   T73]      netlink_rcv_skb+0x130/0x360
[ 2153.534952][   T73]      netlink_unicast+0x449/0x710
[ 2153.534952][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2153.534952][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2153.534952][   T73]      ___sys_sendmsg+0xee/0x170
[ 2153.534952][   T73]      __sys_sendmsg+0xcd/0x170
[ 2153.534952][   T73]      do_syscall_64+0xc6/0x1e0
[ 2153.534952][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2153.534952][   T73] 
[ 2153.536673][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2153.536967][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2153.536967][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2153.536967][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2153.536967][   T73]      fib6_nh_init+0xa22/0x1580
[ 2153.536967][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2153.536967][   T73]      ip6_route_add+0x1c/0x140
[ 2153.536967][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2153.536967][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2153.536967][   T73]      netlink_rcv_skb+0x130/0x360
[ 2153.536967][   T73]      netlink_unicast+0x449/0x710
[ 2153.536967][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2153.536967][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2153.536967][   T73]      ___sys_sendmsg+0xee/0x170
[ 2153.536967][   T73]      __sys_sendmsg+0xcd/0x170
[ 2153.536967][   T73]      do_syscall_64+0xc6/0x1e0
[ 2153.536967][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2153.536967][   T73] 
[ 2153.539063][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2153.539063][   T73]      dst_init+0x84/0x4a0
[ 2153.539063][   T73]      dst_alloc+0x97/0x150
[ 2153.539063][   T73]      ip6_dst_alloc+0x23/0x90
[ 2153.539063][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2153.539063][   T73]      ip6_pol_route+0x56f/0x840
[ 2153.539063][   T73]      fib6_rule_lookup+0x456/0x630
[ 2153.539063][   T73]      ip6_route_input+0x59c/0xa50
[ 2153.539063][   T73]      ipv6_rcv+0x397/0x810
[ 2153.539063][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2153.539063][   T73]      process_backlog+0x101/0x620
[ 2153.539063][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2153.539063][   T73]      net_rx_action+0x495/0xbe0
[ 2153.539063][   T73]      __do_softirq+0x1b5/0x7f6
[ 2153.539063][   T73] 
[ 2153.540897][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2153.540897][   T73]      netdev_get_by_index+0x5e/0x80
[ 2153.540897][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2153.540897][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2153.540897][   T73]      ip6_route_add+0x1c/0x140
[ 2153.540897][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2153.540897][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2153.540897][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2153.540897][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2153.540897][   T73]      netlink_rcv_skb+0x130/0x360
[ 2153.540897][   T73]      netlink_unicast+0x449/0x710
[ 2153.540897][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2153.540897][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2153.540897][   T73]      ___sys_sendmsg+0xee/0x170
[ 2153.540897][   T73]      __sys_sendmsg+0xcd/0x170
[ 2153.540897][   T73]      do_syscall_64+0xc6/0x1e0
[ 2153.540897][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2153.540897][   T73] 
[ 2153.543157][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2153.543157][   T73]      netdev_get_by_index+0x5e/0x80
[ 2153.543157][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2153.543157][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2153.543157][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2153.543157][   T73]      ipv6_add_addr+0x411/0x2000
[ 2153.543157][   T73]      inet6_addr_add+0x30e/0xa40
[ 2153.543157][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2153.543157][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2153.543157][   T73]      netlink_rcv_skb+0x130/0x360
[ 2153.543157][   T73]      netlink_unicast+0x449/0x710
[ 2153.543157][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2153.543157][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2153.543157][   T73]      ___sys_sendmsg+0xee/0x170
[ 2153.543157][   T73]      __sys_sendmsg+0xcd/0x170
[ 2153.543157][   T73]      do_syscall_64+0xc6/0x1e0
[ 2153.543157][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2153.543157][   T73] 
[ 2153.545492][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2153.545492][   T73]      netdev_get_by_index+0x5e/0x80
[ 2153.545492][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2153.545492][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2153.545492][   T73]      ip6_route_add+0x1c/0x140
[ 2153.545492][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2153.545492][   T73]      addrconf_add_dev+0xe2/0x170
[ 2153.545492][   T73]      inet6_addr_add+0x12f/0xa40
[ 2153.545492][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2153.545492][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2153.545492][   T73]      netlink_rcv_skb+0x130/0x360
[ 2153.545492][   T73]      netlink_unicast+0x449/0x710
[ 2153.545492][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2153.545492][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2153.545492][   T73]      ___sys_sendmsg+0xee/0x170
[ 2153.545492][   T73]      __sys_sendmsg+0xcd/0x170
[ 2153.545492][   T73]      do_syscall_64+0xc6/0x1e0
[ 2153.545492][   T73] 
[ 2153.547713][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2153.547713][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2153.547713][   T73]      ipv6_find_idev+0x102/0x170
[ 2153.547713][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2153.547713][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2153.547713][   T73]      netlink_rcv_skb+0x130/0x360
[ 2153.547713][   T73]      netlink_unicast+0x449/0x710
[ 2153.547713][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2153.547713][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2153.547713][   T73]      ___sys_sendmsg+0xee/0x170
[ 2153.547713][   T73]      __sys_sendmsg+0xcd/0x170
[ 2153.547713][   T73]      do_syscall_64+0xc6/0x1e0
[ 2153.547713][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2153.547713][   T73] 
[ 2153.549383][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2153.549383][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2153.549383][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2153.549383][   T73]      ipv6_find_idev+0x102/0x170
[ 2153.549383][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2153.549383][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2153.549383][   T73]      netlink_rcv_skb+0x130/0x360
[ 2153.549383][   T73]      netlink_unicast+0x449/0x710
[ 2153.549383][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2153.549383][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2153.549383][   T73]      ___sys_sendmsg+0xee/0x170
[ 2153.549383][   T73]      __sys_sendmsg+0xcd/0x170
[ 2153.549383][   T73]      do_syscall_64+0xc6/0x1e0
[ 2153.549383][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2153.549383][   T73] 
[ 2153.551344][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2153.551625][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2153.551625][   T73]      netdev_get_by_index+0x5e/0x80
[ 2153.551625][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2153.551625][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2153.551625][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2153.551625][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2153.551625][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2153.551625][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2153.551625][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2153.551625][   T73]      addrconf_dad_begin+0x310/0x670
[ 2153.551625][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2153.551625][   T73]      process_one_work+0x84d/0x18a0
[ 2153.551625][   T73]      worker_thread+0x587/0xd30
[ 2153.551625][   T73]      kthread+0x28a/0x350
[ 2153.551625][   T73]      ret_from_fork+0x31/0x70
[ 2153.551625][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2153.551625][   T73] 
[ 2153.553798][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2153.553798][   T73]      netdev_get_by_index+0x5e/0x80
[ 2153.553798][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2153.553798][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2153.553798][   T73]      ip6_route_add+0x1c/0x140
[ 2153.553798][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2153.553798][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2153.553798][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2153.553798][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2153.553798][   T73]      netlink_rcv_skb+0x130/0x360
[ 2153.553798][   T73]      netlink_unicast+0x449/0x710
[ 2153.553798][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2153.553798][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2153.553798][   T73]      ___sys_sendmsg+0xee/0x170
[ 2153.553798][   T73]      __sys_sendmsg+0xcd/0x170
[ 2153.553798][   T73]      do_syscall_64+0xc6/0x1e0
[ 2153.553798][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2153.553798][   T73] 
[ 2153.556114][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2153.556114][   T73]      netdev_get_by_index+0x5e/0x80
[ 2153.556114][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2153.556114][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2153.556114][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2153.556114][   T73]      ipv6_add_addr+0x411/0x2000
[ 2153.556114][   T73]      inet6_addr_add+0x30e/0xa40
[ 2153.556114][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2153.556114][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2153.556114][   T73]      netlink_rcv_skb+0x130/0x360
[ 2153.556114][   T73]      netlink_unicast+0x449/0x710
[ 2153.556114][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2153.556114][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2153.556114][   T73]      ___sys_sendmsg+0xee/0x170
[ 2153.556114][   T73]      __sys_sendmsg+0xcd/0x170
[ 2153.556114][   T73]      do_syscall_64+0xc6/0x1e0
[ 2153.556114][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2153.556114][   T73] 
[ 2153.558304][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2153.558304][   T73]      netdev_get_by_index+0x5e/0x80
[ 2153.558304][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2153.558304][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2153.558304][   T73]      ip6_route_add+0x1c/0x140
[ 2153.558304][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2153.558304][   T73]      addrconf_add_dev+0xe2/0x170
[ 2153.558304][   T73]      inet6_addr_add+0x12f/0xa40
[ 2153.558304][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2153.558304][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2153.558304][   T73]      netlink_rcv_skb+0x130/0x360
[ 2153.558304][   T73]      netlink_unicast+0x449/0x710
[ 2153.558304][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2153.558304][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2153.558304][   T73]      ___sys_sendmsg+0xee/0x170
[ 2153.558304][   T73]      __sys_sendmsg+0xcd/0x170
[ 2153.558304][   T73]      do_syscall_64+0xc6/0x1e0
[ 2153.558304][   T73] 
[ 2153.560524][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2153.560524][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2153.560524][   T73]      ipv6_find_idev+0x102/0x170
[ 2153.560524][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2153.560524][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2153.560524][   T73]      netlink_rcv_skb+0x130/0x360
[ 2153.560524][   T73]      netlink_unicast+0x449/0x710
[ 2153.560524][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2153.560524][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2153.560524][   T73]      ___sys_sendmsg+0xee/0x170
[ 2153.560524][   T73]      __sys_sendmsg+0xcd/0x170
[ 2153.560524][   T73]      do_syscall_64+0xc6/0x1e0
[ 2153.560524][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2153.560524][   T73] 
[ 2153.562331][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2153.562331][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2153.562331][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2153.562331][   T73]      ipv6_find_idev+0x102/0x170
[ 2153.562331][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2153.562331][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2153.562331][   T73]      netlink_rcv_skb+0x130/0x360
[ 2153.562331][   T73]      netlink_unicast+0x449/0x710
[ 2153.562331][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2153.562331][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2153.562331][   T73]      ___sys_sendmsg+0xee/0x170
[ 2153.562331][   T73]      __sys_sendmsg+0xcd/0x170
[ 2153.562331][   T73]      do_syscall_64+0xc6/0x1e0
[ 2153.562331][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2153.562331][   T73] 
[ 2163.807784][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2163.808279][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2163.808279][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2163.808279][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2163.808279][   T73]      fib6_nh_init+0xa22/0x1580
[ 2163.808279][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2163.808279][   T73]      ip6_route_add+0x1c/0x140
[ 2163.808279][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2163.808279][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2163.808279][   T73]      netlink_rcv_skb+0x130/0x360
[ 2163.808279][   T73]      netlink_unicast+0x449/0x710
[ 2163.808279][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2163.808279][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2163.808279][   T73]      ___sys_sendmsg+0xee/0x170
[ 2163.808279][   T73]      __sys_sendmsg+0xcd/0x170
[ 2163.808279][   T73]      do_syscall_64+0xc6/0x1e0
[ 2163.808279][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2163.808279][   T73] 
[ 2163.810180][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2163.810180][   T73]      dst_init+0x84/0x4a0
[ 2163.810180][   T73]      dst_alloc+0x97/0x150
[ 2163.810180][   T73]      ip6_dst_alloc+0x23/0x90
[ 2163.810180][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2163.810180][   T73]      ip6_pol_route+0x56f/0x840
[ 2163.810180][   T73]      fib6_rule_lookup+0x456/0x630
[ 2163.810180][   T73]      ip6_route_input+0x59c/0xa50
[ 2163.810180][   T73]      ipv6_rcv+0x397/0x810
[ 2163.810180][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2163.810180][   T73]      process_backlog+0x101/0x620
[ 2163.810180][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2163.810180][   T73]      net_rx_action+0x495/0xbe0
[ 2163.810180][   T73]      __do_softirq+0x1b5/0x7f6
[ 2163.810180][   T73] 
[ 2163.811820][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2163.811820][   T73]      netdev_get_by_index+0x5e/0x80
[ 2163.811820][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2163.811820][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2163.811820][   T73]      ip6_route_add+0x1c/0x140
[ 2163.811820][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2163.811820][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2163.811820][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2163.811820][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2163.811820][   T73]      netlink_rcv_skb+0x130/0x360
[ 2163.811820][   T73]      netlink_unicast+0x449/0x710
[ 2163.811820][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2163.811820][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2163.811820][   T73]      ___sys_sendmsg+0xee/0x170
[ 2163.811820][   T73]      __sys_sendmsg+0xcd/0x170
[ 2163.811820][   T73]      do_syscall_64+0xc6/0x1e0
[ 2163.811820][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2163.811820][   T73] 
[ 2163.813817][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2163.813817][   T73]      netdev_get_by_index+0x5e/0x80
[ 2163.813817][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2163.813817][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2163.813817][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2163.813817][   T73]      ipv6_add_addr+0x411/0x2000
[ 2163.813817][   T73]      inet6_addr_add+0x30e/0xa40
[ 2163.813817][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2163.813817][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2163.813817][   T73]      netlink_rcv_skb+0x130/0x360
[ 2163.813817][   T73]      netlink_unicast+0x449/0x710
[ 2163.813817][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2163.813817][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2163.813817][   T73]      ___sys_sendmsg+0xee/0x170
[ 2163.813817][   T73]      __sys_sendmsg+0xcd/0x170
[ 2163.813817][   T73]      do_syscall_64+0xc6/0x1e0
[ 2163.813817][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2163.813817][   T73] 
[ 2163.815831][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2163.815831][   T73]      netdev_get_by_index+0x5e/0x80
[ 2163.815831][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2163.815831][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2163.815831][   T73]      ip6_route_add+0x1c/0x140
[ 2163.815831][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2163.815831][   T73]      addrconf_add_dev+0xe2/0x170
[ 2163.815831][   T73]      inet6_addr_add+0x12f/0xa40
[ 2163.815831][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2163.815831][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2163.815831][   T73]      netlink_rcv_skb+0x130/0x360
[ 2163.815831][   T73]      netlink_unicast+0x449/0x710
[ 2163.815831][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2163.815831][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2163.815831][   T73]      ___sys_sendmsg+0xee/0x170
[ 2163.815831][   T73]      __sys_sendmsg+0xcd/0x170
[ 2163.815831][   T73]      do_syscall_64+0xc6/0x1e0
[ 2163.815831][   T73] 
[ 2163.817807][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2163.817807][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2163.817807][   T73]      ipv6_find_idev+0x102/0x170
[ 2163.817807][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2163.817807][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2163.817807][   T73]      netlink_rcv_skb+0x130/0x360
[ 2163.817807][   T73]      netlink_unicast+0x449/0x710
[ 2163.817807][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2163.817807][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2163.817807][   T73]      ___sys_sendmsg+0xee/0x170
[ 2163.817807][   T73]      __sys_sendmsg+0xcd/0x170
[ 2163.817807][   T73]      do_syscall_64+0xc6/0x1e0
[ 2163.817807][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2163.817807][   T73] 
[ 2163.819370][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2163.819370][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2163.819370][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2163.819370][   T73]      ipv6_find_idev+0x102/0x170
[ 2163.819370][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2163.819370][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2163.819370][   T73]      netlink_rcv_skb+0x130/0x360
[ 2163.819370][   T73]      netlink_unicast+0x449/0x710
[ 2163.819370][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2163.819370][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2163.819370][   T73]      ___sys_sendmsg+0xee/0x170
[ 2163.819370][   T73]      __sys_sendmsg+0xcd/0x170
[ 2163.819370][   T73]      do_syscall_64+0xc6/0x1e0
[ 2163.819370][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2163.819370][   T73] 
[ 2163.821061][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2163.821345][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2163.821345][   T73]      netdev_get_by_index+0x5e/0x80
[ 2163.821345][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2163.821345][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2163.821345][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2163.821345][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2163.821345][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2163.821345][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2163.821345][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2163.821345][   T73]      addrconf_dad_begin+0x310/0x670
[ 2163.821345][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2163.821345][   T73]      process_one_work+0x84d/0x18a0
[ 2163.821345][   T73]      worker_thread+0x587/0xd30
[ 2163.821345][   T73]      kthread+0x28a/0x350
[ 2163.821345][   T73]      ret_from_fork+0x31/0x70
[ 2163.821345][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2163.821345][   T73] 
[ 2163.823242][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2163.823242][   T73]      netdev_get_by_index+0x5e/0x80
[ 2163.823242][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2163.823242][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2163.823242][   T73]      ip6_route_add+0x1c/0x140
[ 2163.823242][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2163.823242][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2163.823242][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2163.823242][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2163.823242][   T73]      netlink_rcv_skb+0x130/0x360
[ 2163.823242][   T73]      netlink_unicast+0x449/0x710
[ 2163.823242][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2163.823242][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2163.823242][   T73]      ___sys_sendmsg+0xee/0x170
[ 2163.823242][   T73]      __sys_sendmsg+0xcd/0x170
[ 2163.823242][   T73]      do_syscall_64+0xc6/0x1e0
[ 2163.823242][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2163.823242][   T73] 
[ 2163.825766][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2163.825766][   T73]      netdev_get_by_index+0x5e/0x80
[ 2163.825766][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2163.825766][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2163.825766][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2163.825766][   T73]      ipv6_add_addr+0x411/0x2000
[ 2163.825766][   T73]      inet6_addr_add+0x30e/0xa40
[ 2163.825766][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2163.825766][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2163.825766][   T73]      netlink_rcv_skb+0x130/0x360
[ 2163.825766][   T73]      netlink_unicast+0x449/0x710
[ 2163.825766][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2163.825766][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2163.825766][   T73]      ___sys_sendmsg+0xee/0x170
[ 2163.825766][   T73]      __sys_sendmsg+0xcd/0x170
[ 2163.825766][   T73]      do_syscall_64+0xc6/0x1e0
[ 2163.825766][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2163.825766][   T73] 
[ 2163.827748][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2163.827748][   T73]      netdev_get_by_index+0x5e/0x80
[ 2163.827748][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2163.827748][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2163.827748][   T73]      ip6_route_add+0x1c/0x140
[ 2163.827748][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2163.827748][   T73]      addrconf_add_dev+0xe2/0x170
[ 2163.827748][   T73]      inet6_addr_add+0x12f/0xa40
[ 2163.827748][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2163.827748][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2163.827748][   T73]      netlink_rcv_skb+0x130/0x360
[ 2163.827748][   T73]      netlink_unicast+0x449/0x710
[ 2163.827748][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2163.827748][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2163.827748][   T73]      ___sys_sendmsg+0xee/0x170
[ 2163.827748][   T73]      __sys_sendmsg+0xcd/0x170
[ 2163.827748][   T73]      do_syscall_64+0xc6/0x1e0
[ 2163.827748][   T73] 
[ 2163.829694][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2163.829694][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2163.829694][   T73]      ipv6_find_idev+0x102/0x170
[ 2163.829694][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2163.829694][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2163.829694][   T73]      netlink_rcv_skb+0x130/0x360
[ 2163.829694][   T73]      netlink_unicast+0x449/0x710
[ 2163.829694][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2163.829694][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2163.829694][   T73]      ___sys_sendmsg+0xee/0x170
[ 2163.829694][   T73]      __sys_sendmsg+0xcd/0x170
[ 2163.829694][   T73]      do_syscall_64+0xc6/0x1e0
[ 2163.829694][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2163.829694][   T73] 
[ 2163.831216][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2163.831216][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2163.831216][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2163.831216][   T73]      ipv6_find_idev+0x102/0x170
[ 2163.831216][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2163.831216][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2163.831216][   T73]      netlink_rcv_skb+0x130/0x360
[ 2163.831216][   T73]      netlink_unicast+0x449/0x710
[ 2163.831216][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2163.831216][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2163.831216][   T73]      ___sys_sendmsg+0xee/0x170
[ 2163.831216][   T73]      __sys_sendmsg+0xcd/0x170
[ 2163.831216][   T73]      do_syscall_64+0xc6/0x1e0
[ 2163.831216][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2163.831216][   T73] 
[ 2163.832934][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2163.833221][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2163.833221][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2163.833221][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2163.833221][   T73]      fib6_nh_init+0xa22/0x1580
[ 2163.833221][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2163.833221][   T73]      ip6_route_add+0x1c/0x140
[ 2163.833221][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2163.833221][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2163.833221][   T73]      netlink_rcv_skb+0x130/0x360
[ 2163.833221][   T73]      netlink_unicast+0x449/0x710
[ 2163.833221][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2163.833221][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2163.833221][   T73]      ___sys_sendmsg+0xee/0x170
[ 2163.833221][   T73]      __sys_sendmsg+0xcd/0x170
[ 2163.833221][   T73]      do_syscall_64+0xc6/0x1e0
[ 2163.833221][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2163.833221][   T73] 
[ 2163.835311][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2163.835311][   T73]      dst_init+0x84/0x4a0
[ 2163.835311][   T73]      dst_alloc+0x97/0x150
[ 2163.835311][   T73]      ip6_dst_alloc+0x23/0x90
[ 2163.835311][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2163.835311][   T73]      ip6_pol_route+0x56f/0x840
[ 2163.835311][   T73]      fib6_rule_lookup+0x456/0x630
[ 2163.835311][   T73]      ip6_route_input+0x59c/0xa50
[ 2163.835311][   T73]      ipv6_rcv+0x397/0x810
[ 2163.835311][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2163.835311][   T73]      process_backlog+0x101/0x620
[ 2163.835311][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2163.835311][   T73]      net_rx_action+0x495/0xbe0
[ 2163.835311][   T73]      __do_softirq+0x1b5/0x7f6
[ 2163.835311][   T73] 
[ 2163.837181][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2163.837181][   T73]      netdev_get_by_index+0x5e/0x80
[ 2163.837181][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2163.837181][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2163.837181][   T73]      ip6_route_add+0x1c/0x140
[ 2163.837181][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2163.837181][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2163.837181][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2163.837181][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2163.837181][   T73]      netlink_rcv_skb+0x130/0x360
[ 2163.837181][   T73]      netlink_unicast+0x449/0x710
[ 2163.837181][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2163.837181][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2163.837181][   T73]      ___sys_sendmsg+0xee/0x170
[ 2163.837181][   T73]      __sys_sendmsg+0xcd/0x170
[ 2163.837181][   T73]      do_syscall_64+0xc6/0x1e0
[ 2163.837181][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2163.837181][   T73] 
[ 2163.839426][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2163.839426][   T73]      netdev_get_by_index+0x5e/0x80
[ 2163.839426][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2163.839426][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2163.839426][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2163.839426][   T73]      ipv6_add_addr+0x411/0x2000
[ 2163.839426][   T73]      inet6_addr_add+0x30e/0xa40
[ 2163.839426][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2163.839426][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2163.839426][   T73]      netlink_rcv_skb+0x130/0x360
[ 2163.839426][   T73]      netlink_unicast+0x449/0x710
[ 2163.839426][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2163.839426][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2163.839426][   T73]      ___sys_sendmsg+0xee/0x170
[ 2163.839426][   T73]      __sys_sendmsg+0xcd/0x170
[ 2163.839426][   T73]      do_syscall_64+0xc6/0x1e0
[ 2163.839426][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2163.839426][   T73] 
[ 2163.841982][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2163.841982][   T73]      netdev_get_by_index+0x5e/0x80
[ 2163.841982][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2163.841982][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2163.841982][   T73]      ip6_route_add+0x1c/0x140
[ 2163.841982][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2163.841982][   T73]      addrconf_add_dev+0xe2/0x170
[ 2163.841982][   T73]      inet6_addr_add+0x12f/0xa40
[ 2163.841982][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2163.841982][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2163.841982][   T73]      netlink_rcv_skb+0x130/0x360
[ 2163.841982][   T73]      netlink_unicast+0x449/0x710
[ 2163.841982][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2163.841982][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2163.841982][   T73]      ___sys_sendmsg+0xee/0x170
[ 2163.841982][   T73]      __sys_sendmsg+0xcd/0x170
[ 2163.841982][   T73]      do_syscall_64+0xc6/0x1e0
[ 2163.841982][   T73] 
[ 2163.844229][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2163.844229][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2163.844229][   T73]      ipv6_find_idev+0x102/0x170
[ 2163.844229][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2163.844229][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2163.844229][   T73]      netlink_rcv_skb+0x130/0x360
[ 2163.844229][   T73]      netlink_unicast+0x449/0x710
[ 2163.844229][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2163.844229][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2163.844229][   T73]      ___sys_sendmsg+0xee/0x170
[ 2163.844229][   T73]      __sys_sendmsg+0xcd/0x170
[ 2163.844229][   T73]      do_syscall_64+0xc6/0x1e0
[ 2163.844229][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2163.844229][   T73] 
[ 2163.845961][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2163.845961][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2163.845961][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2163.845961][   T73]      ipv6_find_idev+0x102/0x170
[ 2163.845961][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2163.845961][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2163.845961][   T73]      netlink_rcv_skb+0x130/0x360
[ 2163.845961][   T73]      netlink_unicast+0x449/0x710
[ 2163.845961][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2163.845961][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2163.845961][   T73]      ___sys_sendmsg+0xee/0x170
[ 2163.845961][   T73]      __sys_sendmsg+0xcd/0x170
[ 2163.845961][   T73]      do_syscall_64+0xc6/0x1e0
[ 2163.845961][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2163.845961][   T73] 
[ 2163.847950][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2163.848230][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2163.848230][   T73]      netdev_get_by_index+0x5e/0x80
[ 2163.848230][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2163.848230][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2163.848230][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2163.848230][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2163.848230][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2163.848230][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2163.848230][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2163.848230][   T73]      addrconf_dad_begin+0x310/0x670
[ 2163.848230][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2163.848230][   T73]      process_one_work+0x84d/0x18a0
[ 2163.848230][   T73]      worker_thread+0x587/0xd30
[ 2163.848230][   T73]      kthread+0x28a/0x350
[ 2163.848230][   T73]      ret_from_fork+0x31/0x70
[ 2163.848230][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2163.848230][   T73] 
[ 2163.850377][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2163.850377][   T73]      netdev_get_by_index+0x5e/0x80
[ 2163.850377][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2163.850377][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2163.850377][   T73]      ip6_route_add+0x1c/0x140
[ 2163.850377][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2163.850377][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2163.850377][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2163.850377][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2163.850377][   T73]      netlink_rcv_skb+0x130/0x360
[ 2163.850377][   T73]      netlink_unicast+0x449/0x710
[ 2163.850377][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2163.850377][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2163.850377][   T73]      ___sys_sendmsg+0xee/0x170
[ 2163.850377][   T73]      __sys_sendmsg+0xcd/0x170
[ 2163.850377][   T73]      do_syscall_64+0xc6/0x1e0
[ 2163.850377][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2163.850377][   T73] 
[ 2163.852544][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2163.852544][   T73]      netdev_get_by_index+0x5e/0x80
[ 2163.852544][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2163.852544][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2163.852544][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2163.852544][   T73]      ipv6_add_addr+0x411/0x2000
[ 2163.852544][   T73]      inet6_addr_add+0x30e/0xa40
[ 2163.852544][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2163.852544][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2163.852544][   T73]      netlink_rcv_skb+0x130/0x360
[ 2163.852544][   T73]      netlink_unicast+0x449/0x710
[ 2163.852544][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2163.852544][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2163.852544][   T73]      ___sys_sendmsg+0xee/0x170
[ 2163.852544][   T73]      __sys_sendmsg+0xcd/0x170
[ 2163.852544][   T73]      do_syscall_64+0xc6/0x1e0
[ 2163.852544][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2163.852544][   T73] 
[ 2163.854796][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2163.854796][   T73]      netdev_get_by_index+0x5e/0x80
[ 2163.854796][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2163.854796][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2163.854796][   T73]      ip6_route_add+0x1c/0x140
[ 2163.854796][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2163.854796][   T73]      addrconf_add_dev+0xe2/0x170
[ 2163.854796][   T73]      inet6_addr_add+0x12f/0xa40
[ 2163.854796][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2163.854796][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2163.854796][   T73]      netlink_rcv_skb+0x130/0x360
[ 2163.854796][   T73]      netlink_unicast+0x449/0x710
[ 2163.854796][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2163.854796][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2163.854796][   T73]      ___sys_sendmsg+0xee/0x170
[ 2163.854796][   T73]      __sys_sendmsg+0xcd/0x170
[ 2163.854796][   T73]      do_syscall_64+0xc6/0x1e0
[ 2163.854796][   T73] 
[ 2163.857126][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2163.857126][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2163.857126][   T73]      ipv6_find_idev+0x102/0x170
[ 2163.857126][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2163.857126][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2163.857126][   T73]      netlink_rcv_skb+0x130/0x360
[ 2163.857126][   T73]      netlink_unicast+0x449/0x710
[ 2163.857126][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2163.857126][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2163.857126][   T73]      ___sys_sendmsg+0xee/0x170
[ 2163.857126][   T73]      __sys_sendmsg+0xcd/0x170
[ 2163.857126][   T73]      do_syscall_64+0xc6/0x1e0
[ 2163.857126][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2163.857126][   T73] 
[ 2163.858833][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2163.858833][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2163.858833][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2163.858833][   T73]      ipv6_find_idev+0x102/0x170
[ 2163.858833][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2163.858833][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2163.858833][   T73]      netlink_rcv_skb+0x130/0x360
[ 2163.858833][   T73]      netlink_unicast+0x449/0x710
[ 2163.858833][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2163.858833][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2163.858833][   T73]      ___sys_sendmsg+0xee/0x170
[ 2163.858833][   T73]      __sys_sendmsg+0xcd/0x170
[ 2163.858833][   T73]      do_syscall_64+0xc6/0x1e0
[ 2163.858833][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2163.858833][   T73] 
[ 2174.103871][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2174.104308][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2174.104308][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2174.104308][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2174.104308][   T73]      fib6_nh_init+0xa22/0x1580
[ 2174.104308][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2174.104308][   T73]      ip6_route_add+0x1c/0x140
[ 2174.104308][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2174.104308][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2174.104308][   T73]      netlink_rcv_skb+0x130/0x360
[ 2174.104308][   T73]      netlink_unicast+0x449/0x710
[ 2174.104308][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2174.104308][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2174.104308][   T73]      ___sys_sendmsg+0xee/0x170
[ 2174.104308][   T73]      __sys_sendmsg+0xcd/0x170
[ 2174.104308][   T73]      do_syscall_64+0xc6/0x1e0
[ 2174.104308][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2174.104308][   T73] 
[ 2174.106266][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2174.106266][   T73]      dst_init+0x84/0x4a0
[ 2174.106266][   T73]      dst_alloc+0x97/0x150
[ 2174.106266][   T73]      ip6_dst_alloc+0x23/0x90
[ 2174.106266][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2174.106266][   T73]      ip6_pol_route+0x56f/0x840
[ 2174.106266][   T73]      fib6_rule_lookup+0x456/0x630
[ 2174.106266][   T73]      ip6_route_input+0x59c/0xa50
[ 2174.106266][   T73]      ipv6_rcv+0x397/0x810
[ 2174.106266][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2174.106266][   T73]      process_backlog+0x101/0x620
[ 2174.106266][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2174.106266][   T73]      net_rx_action+0x495/0xbe0
[ 2174.106266][   T73]      __do_softirq+0x1b5/0x7f6
[ 2174.106266][   T73] 
[ 2174.107908][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2174.107908][   T73]      netdev_get_by_index+0x5e/0x80
[ 2174.107908][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2174.107908][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2174.107908][   T73]      ip6_route_add+0x1c/0x140
[ 2174.107908][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2174.107908][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2174.107908][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2174.107908][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2174.107908][   T73]      netlink_rcv_skb+0x130/0x360
[ 2174.107908][   T73]      netlink_unicast+0x449/0x710
[ 2174.107908][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2174.107908][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2174.107908][   T73]      ___sys_sendmsg+0xee/0x170
[ 2174.107908][   T73]      __sys_sendmsg+0xcd/0x170
[ 2174.107908][   T73]      do_syscall_64+0xc6/0x1e0
[ 2174.107908][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2174.107908][   T73] 
[ 2174.109909][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2174.109909][   T73]      netdev_get_by_index+0x5e/0x80
[ 2174.109909][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2174.109909][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2174.109909][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2174.109909][   T73]      ipv6_add_addr+0x411/0x2000
[ 2174.109909][   T73]      inet6_addr_add+0x30e/0xa40
[ 2174.109909][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2174.109909][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2174.109909][   T73]      netlink_rcv_skb+0x130/0x360
[ 2174.109909][   T73]      netlink_unicast+0x449/0x710
[ 2174.109909][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2174.109909][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2174.109909][   T73]      ___sys_sendmsg+0xee/0x170
[ 2174.109909][   T73]      __sys_sendmsg+0xcd/0x170
[ 2174.109909][   T73]      do_syscall_64+0xc6/0x1e0
[ 2174.109909][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2174.109909][   T73] 
[ 2174.111938][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2174.111938][   T73]      netdev_get_by_index+0x5e/0x80
[ 2174.111938][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2174.111938][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2174.111938][   T73]      ip6_route_add+0x1c/0x140
[ 2174.111938][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2174.111938][   T73]      addrconf_add_dev+0xe2/0x170
[ 2174.111938][   T73]      inet6_addr_add+0x12f/0xa40
[ 2174.111938][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2174.111938][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2174.111938][   T73]      netlink_rcv_skb+0x130/0x360
[ 2174.111938][   T73]      netlink_unicast+0x449/0x710
[ 2174.111938][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2174.111938][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2174.111938][   T73]      ___sys_sendmsg+0xee/0x170
[ 2174.111938][   T73]      __sys_sendmsg+0xcd/0x170
[ 2174.111938][   T73]      do_syscall_64+0xc6/0x1e0
[ 2174.111938][   T73] 
[ 2174.113925][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2174.113925][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2174.113925][   T73]      ipv6_find_idev+0x102/0x170
[ 2174.113925][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2174.113925][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2174.113925][   T73]      netlink_rcv_skb+0x130/0x360
[ 2174.113925][   T73]      netlink_unicast+0x449/0x710
[ 2174.113925][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2174.113925][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2174.113925][   T73]      ___sys_sendmsg+0xee/0x170
[ 2174.113925][   T73]      __sys_sendmsg+0xcd/0x170
[ 2174.113925][   T73]      do_syscall_64+0xc6/0x1e0
[ 2174.113925][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2174.113925][   T73] 
[ 2174.115491][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2174.115491][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2174.115491][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2174.115491][   T73]      ipv6_find_idev+0x102/0x170
[ 2174.115491][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2174.115491][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2174.115491][   T73]      netlink_rcv_skb+0x130/0x360
[ 2174.115491][   T73]      netlink_unicast+0x449/0x710
[ 2174.115491][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2174.115491][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2174.115491][   T73]      ___sys_sendmsg+0xee/0x170
[ 2174.115491][   T73]      __sys_sendmsg+0xcd/0x170
[ 2174.115491][   T73]      do_syscall_64+0xc6/0x1e0
[ 2174.115491][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2174.115491][   T73] 
[ 2174.117220][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2174.117519][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2174.117519][   T73]      netdev_get_by_index+0x5e/0x80
[ 2174.117519][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2174.117519][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2174.117519][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2174.117519][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2174.117519][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2174.117519][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2174.117519][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2174.117519][   T73]      addrconf_dad_begin+0x310/0x670
[ 2174.117519][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2174.117519][   T73]      process_one_work+0x84d/0x18a0
[ 2174.117519][   T73]      worker_thread+0x587/0xd30
[ 2174.117519][   T73]      kthread+0x28a/0x350
[ 2174.117519][   T73]      ret_from_fork+0x31/0x70
[ 2174.117519][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2174.117519][   T73] 
[ 2174.119458][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2174.119458][   T73]      netdev_get_by_index+0x5e/0x80
[ 2174.119458][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2174.119458][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2174.119458][   T73]      ip6_route_add+0x1c/0x140
[ 2174.119458][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2174.119458][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2174.119458][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2174.119458][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2174.119458][   T73]      netlink_rcv_skb+0x130/0x360
[ 2174.119458][   T73]      netlink_unicast+0x449/0x710
[ 2174.119458][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2174.119458][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2174.119458][   T73]      ___sys_sendmsg+0xee/0x170
[ 2174.119458][   T73]      __sys_sendmsg+0xcd/0x170
[ 2174.119458][   T73]      do_syscall_64+0xc6/0x1e0
[ 2174.119458][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2174.119458][   T73] 
[ 2174.121489][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2174.121489][   T73]      netdev_get_by_index+0x5e/0x80
[ 2174.121489][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2174.121489][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2174.121489][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2174.121489][   T73]      ipv6_add_addr+0x411/0x2000
[ 2174.121489][   T73]      inet6_addr_add+0x30e/0xa40
[ 2174.121489][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2174.121489][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2174.121489][   T73]      netlink_rcv_skb+0x130/0x360
[ 2174.121489][   T73]      netlink_unicast+0x449/0x710
[ 2174.121489][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2174.121489][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2174.121489][   T73]      ___sys_sendmsg+0xee/0x170
[ 2174.121489][   T73]      __sys_sendmsg+0xcd/0x170
[ 2174.121489][   T73]      do_syscall_64+0xc6/0x1e0
[ 2174.121489][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2174.121489][   T73] 
[ 2174.123540][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2174.123540][   T73]      netdev_get_by_index+0x5e/0x80
[ 2174.123540][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2174.123540][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2174.123540][   T73]      ip6_route_add+0x1c/0x140
[ 2174.123540][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2174.123540][   T73]      addrconf_add_dev+0xe2/0x170
[ 2174.123540][   T73]      inet6_addr_add+0x12f/0xa40
[ 2174.123540][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2174.123540][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2174.123540][   T73]      netlink_rcv_skb+0x130/0x360
[ 2174.123540][   T73]      netlink_unicast+0x449/0x710
[ 2174.123540][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2174.123540][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2174.123540][   T73]      ___sys_sendmsg+0xee/0x170
[ 2174.123540][   T73]      __sys_sendmsg+0xcd/0x170
[ 2174.123540][   T73]      do_syscall_64+0xc6/0x1e0
[ 2174.123540][   T73] 
[ 2174.125514][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2174.125514][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2174.125514][   T73]      ipv6_find_idev+0x102/0x170
[ 2174.125514][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2174.125514][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2174.125514][   T73]      netlink_rcv_skb+0x130/0x360
[ 2174.125514][   T73]      netlink_unicast+0x449/0x710
[ 2174.125514][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2174.125514][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2174.125514][   T73]      ___sys_sendmsg+0xee/0x170
[ 2174.125514][   T73]      __sys_sendmsg+0xcd/0x170
[ 2174.125514][   T73]      do_syscall_64+0xc6/0x1e0
[ 2174.125514][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2174.125514][   T73] 
[ 2174.127048][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2174.127048][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2174.127048][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2174.127048][   T73]      ipv6_find_idev+0x102/0x170
[ 2174.127048][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2174.127048][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2174.127048][   T73]      netlink_rcv_skb+0x130/0x360
[ 2174.127048][   T73]      netlink_unicast+0x449/0x710
[ 2174.127048][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2174.127048][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2174.127048][   T73]      ___sys_sendmsg+0xee/0x170
[ 2174.127048][   T73]      __sys_sendmsg+0xcd/0x170
[ 2174.127048][   T73]      do_syscall_64+0xc6/0x1e0
[ 2174.127048][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2174.127048][   T73] 
[ 2174.128763][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2174.129028][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2174.129028][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2174.129028][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2174.129028][   T73]      fib6_nh_init+0xa22/0x1580
[ 2174.129028][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2174.129028][   T73]      ip6_route_add+0x1c/0x140
[ 2174.129028][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2174.129028][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2174.129028][   T73]      netlink_rcv_skb+0x130/0x360
[ 2174.129028][   T73]      netlink_unicast+0x449/0x710
[ 2174.129028][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2174.129028][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2174.129028][   T73]      ___sys_sendmsg+0xee/0x170
[ 2174.129028][   T73]      __sys_sendmsg+0xcd/0x170
[ 2174.129028][   T73]      do_syscall_64+0xc6/0x1e0
[ 2174.129028][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2174.129028][   T73] 
[ 2174.131095][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2174.131095][   T73]      dst_init+0x84/0x4a0
[ 2174.131095][   T73]      dst_alloc+0x97/0x150
[ 2174.131095][   T73]      ip6_dst_alloc+0x23/0x90
[ 2174.131095][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2174.131095][   T73]      ip6_pol_route+0x56f/0x840
[ 2174.131095][   T73]      fib6_rule_lookup+0x456/0x630
[ 2174.131095][   T73]      ip6_route_input+0x59c/0xa50
[ 2174.131095][   T73]      ipv6_rcv+0x397/0x810
[ 2174.131095][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2174.131095][   T73]      process_backlog+0x101/0x620
[ 2174.131095][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2174.131095][   T73]      net_rx_action+0x495/0xbe0
[ 2174.131095][   T73]      __do_softirq+0x1b5/0x7f6
[ 2174.131095][   T73] 
[ 2174.132932][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2174.132932][   T73]      netdev_get_by_index+0x5e/0x80
[ 2174.132932][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2174.132932][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2174.132932][   T73]      ip6_route_add+0x1c/0x140
[ 2174.132932][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2174.132932][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2174.132932][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2174.132932][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2174.132932][   T73]      netlink_rcv_skb+0x130/0x360
[ 2174.132932][   T73]      netlink_unicast+0x449/0x710
[ 2174.132932][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2174.132932][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2174.132932][   T73]      ___sys_sendmsg+0xee/0x170
[ 2174.132932][   T73]      __sys_sendmsg+0xcd/0x170
[ 2174.132932][   T73]      do_syscall_64+0xc6/0x1e0
[ 2174.132932][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2174.132932][   T73] 
[ 2174.135199][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2174.135199][   T73]      netdev_get_by_index+0x5e/0x80
[ 2174.135199][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2174.135199][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2174.135199][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2174.135199][   T73]      ipv6_add_addr+0x411/0x2000
[ 2174.135199][   T73]      inet6_addr_add+0x30e/0xa40
[ 2174.135199][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2174.135199][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2174.135199][   T73]      netlink_rcv_skb+0x130/0x360
[ 2174.135199][   T73]      netlink_unicast+0x449/0x710
[ 2174.135199][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2174.135199][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2174.135199][   T73]      ___sys_sendmsg+0xee/0x170
[ 2174.135199][   T73]      __sys_sendmsg+0xcd/0x170
[ 2174.135199][   T73]      do_syscall_64+0xc6/0x1e0
[ 2174.135199][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2174.135199][   T73] 
[ 2174.137414][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2174.137414][   T73]      netdev_get_by_index+0x5e/0x80
[ 2174.137414][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2174.137414][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2174.137414][   T73]      ip6_route_add+0x1c/0x140
[ 2174.137414][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2174.137414][   T73]      addrconf_add_dev+0xe2/0x170
[ 2174.137414][   T73]      inet6_addr_add+0x12f/0xa40
[ 2174.137414][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2174.137414][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2174.137414][   T73]      netlink_rcv_skb+0x130/0x360
[ 2174.137414][   T73]      netlink_unicast+0x449/0x710
[ 2174.137414][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2174.137414][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2174.137414][   T73]      ___sys_sendmsg+0xee/0x170
[ 2174.137414][   T73]      __sys_sendmsg+0xcd/0x170
[ 2174.137414][   T73]      do_syscall_64+0xc6/0x1e0
[ 2174.137414][   T73] 
[ 2174.139640][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2174.139640][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2174.139640][   T73]      ipv6_find_idev+0x102/0x170
[ 2174.139640][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2174.139640][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2174.139640][   T73]      netlink_rcv_skb+0x130/0x360
[ 2174.139640][   T73]      netlink_unicast+0x449/0x710
[ 2174.139640][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2174.139640][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2174.139640][   T73]      ___sys_sendmsg+0xee/0x170
[ 2174.139640][   T73]      __sys_sendmsg+0xcd/0x170
[ 2174.139640][   T73]      do_syscall_64+0xc6/0x1e0
[ 2174.139640][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2174.139640][   T73] 
[ 2174.141373][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2174.141373][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2174.141373][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2174.141373][   T73]      ipv6_find_idev+0x102/0x170
[ 2174.141373][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2174.141373][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2174.141373][   T73]      netlink_rcv_skb+0x130/0x360
[ 2174.141373][   T73]      netlink_unicast+0x449/0x710
[ 2174.141373][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2174.141373][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2174.141373][   T73]      ___sys_sendmsg+0xee/0x170
[ 2174.141373][   T73]      __sys_sendmsg+0xcd/0x170
[ 2174.141373][   T73]      do_syscall_64+0xc6/0x1e0
[ 2174.141373][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2174.141373][   T73] 
[ 2174.143336][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2174.143622][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2174.143622][   T73]      netdev_get_by_index+0x5e/0x80
[ 2174.143622][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2174.143622][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2174.143622][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2174.143622][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2174.143622][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2174.143622][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2174.143622][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2174.143622][   T73]      addrconf_dad_begin+0x310/0x670
[ 2174.143622][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2174.143622][   T73]      process_one_work+0x84d/0x18a0
[ 2174.143622][   T73]      worker_thread+0x587/0xd30
[ 2174.143622][   T73]      kthread+0x28a/0x350
[ 2174.143622][   T73]      ret_from_fork+0x31/0x70
[ 2174.143622][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2174.143622][   T73] 
[ 2174.145802][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2174.145802][   T73]      netdev_get_by_index+0x5e/0x80
[ 2174.145802][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2174.145802][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2174.145802][   T73]      ip6_route_add+0x1c/0x140
[ 2174.145802][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2174.145802][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2174.145802][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2174.145802][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2174.145802][   T73]      netlink_rcv_skb+0x130/0x360
[ 2174.145802][   T73]      netlink_unicast+0x449/0x710
[ 2174.145802][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2174.145802][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2174.145802][   T73]      ___sys_sendmsg+0xee/0x170
[ 2174.145802][   T73]      __sys_sendmsg+0xcd/0x170
[ 2174.145802][   T73]      do_syscall_64+0xc6/0x1e0
[ 2174.145802][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2174.145802][   T73] 
[ 2174.148055][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2174.148055][   T73]      netdev_get_by_index+0x5e/0x80
[ 2174.148055][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2174.148055][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2174.148055][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2174.148055][   T73]      ipv6_add_addr+0x411/0x2000
[ 2174.148055][   T73]      inet6_addr_add+0x30e/0xa40
[ 2174.148055][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2174.148055][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2174.148055][   T73]      netlink_rcv_skb+0x130/0x360
[ 2174.148055][   T73]      netlink_unicast+0x449/0x710
[ 2174.148055][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2174.148055][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2174.148055][   T73]      ___sys_sendmsg+0xee/0x170
[ 2174.148055][   T73]      __sys_sendmsg+0xcd/0x170
[ 2174.148055][   T73]      do_syscall_64+0xc6/0x1e0
[ 2174.148055][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2174.148055][   T73] 
[ 2174.150298][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2174.150298][   T73]      netdev_get_by_index+0x5e/0x80
[ 2174.150298][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2174.150298][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2174.150298][   T73]      ip6_route_add+0x1c/0x140
[ 2174.150298][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2174.150298][   T73]      addrconf_add_dev+0xe2/0x170
[ 2174.150298][   T73]      inet6_addr_add+0x12f/0xa40
[ 2174.150298][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2174.150298][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2174.150298][   T73]      netlink_rcv_skb+0x130/0x360
[ 2174.150298][   T73]      netlink_unicast+0x449/0x710
[ 2174.150298][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2174.150298][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2174.150298][   T73]      ___sys_sendmsg+0xee/0x170
[ 2174.150298][   T73]      __sys_sendmsg+0xcd/0x170
[ 2174.150298][   T73]      do_syscall_64+0xc6/0x1e0
[ 2174.150298][   T73] 
[ 2174.152505][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2174.152505][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2174.152505][   T73]      ipv6_find_idev+0x102/0x170
[ 2174.152505][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2174.152505][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2174.152505][   T73]      netlink_rcv_skb+0x130/0x360
[ 2174.152505][   T73]      netlink_unicast+0x449/0x710
[ 2174.152505][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2174.152505][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2174.152505][   T73]      ___sys_sendmsg+0xee/0x170
[ 2174.152505][   T73]      __sys_sendmsg+0xcd/0x170
[ 2174.152505][   T73]      do_syscall_64+0xc6/0x1e0
[ 2174.152505][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2174.152505][   T73] 
[ 2174.154215][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2174.154215][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2174.154215][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2174.154215][   T73]      ipv6_find_idev+0x102/0x170
[ 2174.154215][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2174.154215][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2174.154215][   T73]      netlink_rcv_skb+0x130/0x360
[ 2174.154215][   T73]      netlink_unicast+0x449/0x710
[ 2174.154215][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2174.154215][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2174.154215][   T73]      ___sys_sendmsg+0xee/0x170
[ 2174.154215][   T73]      __sys_sendmsg+0xcd/0x170
[ 2174.154215][   T73]      do_syscall_64+0xc6/0x1e0
[ 2174.154215][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2174.154215][   T73] 
[ 2184.215776][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2184.216221][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2184.216221][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2184.216221][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2184.216221][   T73]      fib6_nh_init+0xa22/0x1580
[ 2184.216221][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2184.216221][   T73]      ip6_route_add+0x1c/0x140
[ 2184.216221][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2184.216221][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2184.216221][   T73]      netlink_rcv_skb+0x130/0x360
[ 2184.216221][   T73]      netlink_unicast+0x449/0x710
[ 2184.216221][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2184.216221][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2184.216221][   T73]      ___sys_sendmsg+0xee/0x170
[ 2184.216221][   T73]      __sys_sendmsg+0xcd/0x170
[ 2184.216221][   T73]      do_syscall_64+0xc6/0x1e0
[ 2184.216221][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2184.216221][   T73] 
[ 2184.218150][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2184.218150][   T73]      dst_init+0x84/0x4a0
[ 2184.218150][   T73]      dst_alloc+0x97/0x150
[ 2184.218150][   T73]      ip6_dst_alloc+0x23/0x90
[ 2184.218150][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2184.218150][   T73]      ip6_pol_route+0x56f/0x840
[ 2184.218150][   T73]      fib6_rule_lookup+0x456/0x630
[ 2184.218150][   T73]      ip6_route_input+0x59c/0xa50
[ 2184.218150][   T73]      ipv6_rcv+0x397/0x810
[ 2184.218150][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2184.218150][   T73]      process_backlog+0x101/0x620
[ 2184.218150][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2184.218150][   T73]      net_rx_action+0x495/0xbe0
[ 2184.218150][   T73]      __do_softirq+0x1b5/0x7f6
[ 2184.218150][   T73] 
[ 2184.219791][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2184.219791][   T73]      netdev_get_by_index+0x5e/0x80
[ 2184.219791][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2184.219791][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2184.219791][   T73]      ip6_route_add+0x1c/0x140
[ 2184.219791][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2184.219791][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2184.219791][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2184.219791][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2184.219791][   T73]      netlink_rcv_skb+0x130/0x360
[ 2184.219791][   T73]      netlink_unicast+0x449/0x710
[ 2184.219791][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2184.219791][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2184.219791][   T73]      ___sys_sendmsg+0xee/0x170
[ 2184.219791][   T73]      __sys_sendmsg+0xcd/0x170
[ 2184.219791][   T73]      do_syscall_64+0xc6/0x1e0
[ 2184.219791][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2184.219791][   T73] 
[ 2184.221814][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2184.221814][   T73]      netdev_get_by_index+0x5e/0x80
[ 2184.221814][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2184.221814][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2184.221814][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2184.221814][   T73]      ipv6_add_addr+0x411/0x2000
[ 2184.221814][   T73]      inet6_addr_add+0x30e/0xa40
[ 2184.221814][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2184.221814][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2184.221814][   T73]      netlink_rcv_skb+0x130/0x360
[ 2184.221814][   T73]      netlink_unicast+0x449/0x710
[ 2184.221814][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2184.221814][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2184.221814][   T73]      ___sys_sendmsg+0xee/0x170
[ 2184.221814][   T73]      __sys_sendmsg+0xcd/0x170
[ 2184.221814][   T73]      do_syscall_64+0xc6/0x1e0
[ 2184.221814][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2184.221814][   T73] 
[ 2184.223844][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2184.223844][   T73]      netdev_get_by_index+0x5e/0x80
[ 2184.223844][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2184.223844][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2184.223844][   T73]      ip6_route_add+0x1c/0x140
[ 2184.223844][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2184.223844][   T73]      addrconf_add_dev+0xe2/0x170
[ 2184.223844][   T73]      inet6_addr_add+0x12f/0xa40
[ 2184.223844][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2184.223844][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2184.223844][   T73]      netlink_rcv_skb+0x130/0x360
[ 2184.223844][   T73]      netlink_unicast+0x449/0x710
[ 2184.223844][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2184.223844][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2184.223844][   T73]      ___sys_sendmsg+0xee/0x170
[ 2184.223844][   T73]      __sys_sendmsg+0xcd/0x170
[ 2184.223844][   T73]      do_syscall_64+0xc6/0x1e0
[ 2184.223844][   T73] 
[ 2184.225869][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2184.225869][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2184.225869][   T73]      ipv6_find_idev+0x102/0x170
[ 2184.225869][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2184.225869][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2184.225869][   T73]      netlink_rcv_skb+0x130/0x360
[ 2184.225869][   T73]      netlink_unicast+0x449/0x710
[ 2184.225869][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2184.225869][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2184.225869][   T73]      ___sys_sendmsg+0xee/0x170
[ 2184.225869][   T73]      __sys_sendmsg+0xcd/0x170
[ 2184.225869][   T73]      do_syscall_64+0xc6/0x1e0
[ 2184.225869][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2184.225869][   T73] 
[ 2184.227416][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2184.227416][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2184.227416][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2184.227416][   T73]      ipv6_find_idev+0x102/0x170
[ 2184.227416][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2184.227416][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2184.227416][   T73]      netlink_rcv_skb+0x130/0x360
[ 2184.227416][   T73]      netlink_unicast+0x449/0x710
[ 2184.227416][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2184.227416][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2184.227416][   T73]      ___sys_sendmsg+0xee/0x170
[ 2184.227416][   T73]      __sys_sendmsg+0xcd/0x170
[ 2184.227416][   T73]      do_syscall_64+0xc6/0x1e0
[ 2184.227416][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2184.227416][   T73] 
[ 2184.229144][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2184.229437][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2184.229437][   T73]      netdev_get_by_index+0x5e/0x80
[ 2184.229437][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2184.229437][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2184.229437][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2184.229437][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2184.229437][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2184.229437][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2184.229437][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2184.229437][   T73]      addrconf_dad_begin+0x310/0x670
[ 2184.229437][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2184.229437][   T73]      process_one_work+0x84d/0x18a0
[ 2184.229437][   T73]      worker_thread+0x587/0xd30
[ 2184.229437][   T73]      kthread+0x28a/0x350
[ 2184.229437][   T73]      ret_from_fork+0x31/0x70
[ 2184.229437][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2184.229437][   T73] 
[ 2184.231350][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2184.231350][   T73]      netdev_get_by_index+0x5e/0x80
[ 2184.231350][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2184.231350][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2184.231350][   T73]      ip6_route_add+0x1c/0x140
[ 2184.231350][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2184.231350][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2184.231350][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2184.231350][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2184.231350][   T73]      netlink_rcv_skb+0x130/0x360
[ 2184.231350][   T73]      netlink_unicast+0x449/0x710
[ 2184.231350][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2184.231350][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2184.231350][   T73]      ___sys_sendmsg+0xee/0x170
[ 2184.231350][   T73]      __sys_sendmsg+0xcd/0x170
[ 2184.231350][   T73]      do_syscall_64+0xc6/0x1e0
[ 2184.231350][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2184.231350][   T73] 
[ 2184.233354][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2184.233354][   T73]      netdev_get_by_index+0x5e/0x80
[ 2184.233354][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2184.233354][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2184.233354][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2184.233354][   T73]      ipv6_add_addr+0x411/0x2000
[ 2184.233354][   T73]      inet6_addr_add+0x30e/0xa40
[ 2184.233354][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2184.233354][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2184.233354][   T73]      netlink_rcv_skb+0x130/0x360
[ 2184.233354][   T73]      netlink_unicast+0x449/0x710
[ 2184.233354][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2184.233354][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2184.233354][   T73]      ___sys_sendmsg+0xee/0x170
[ 2184.233354][   T73]      __sys_sendmsg+0xcd/0x170
[ 2184.233354][   T73]      do_syscall_64+0xc6/0x1e0
[ 2184.233354][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2184.233354][   T73] 
[ 2184.235365][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2184.235365][   T73]      netdev_get_by_index+0x5e/0x80
[ 2184.235365][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2184.235365][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2184.235365][   T73]      ip6_route_add+0x1c/0x140
[ 2184.235365][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2184.235365][   T73]      addrconf_add_dev+0xe2/0x170
[ 2184.235365][   T73]      inet6_addr_add+0x12f/0xa40
[ 2184.235365][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2184.235365][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2184.235365][   T73]      netlink_rcv_skb+0x130/0x360
[ 2184.235365][   T73]      netlink_unicast+0x449/0x710
[ 2184.235365][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2184.235365][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2184.235365][   T73]      ___sys_sendmsg+0xee/0x170
[ 2184.235365][   T73]      __sys_sendmsg+0xcd/0x170
[ 2184.235365][   T73]      do_syscall_64+0xc6/0x1e0
[ 2184.235365][   T73] 
[ 2184.237345][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2184.237345][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2184.237345][   T73]      ipv6_find_idev+0x102/0x170
[ 2184.237345][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2184.237345][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2184.237345][   T73]      netlink_rcv_skb+0x130/0x360
[ 2184.237345][   T73]      netlink_unicast+0x449/0x710
[ 2184.237345][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2184.237345][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2184.237345][   T73]      ___sys_sendmsg+0xee/0x170
[ 2184.237345][   T73]      __sys_sendmsg+0xcd/0x170
[ 2184.237345][   T73]      do_syscall_64+0xc6/0x1e0
[ 2184.237345][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2184.237345][   T73] 
[ 2184.238889][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2184.238889][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2184.238889][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2184.238889][   T73]      ipv6_find_idev+0x102/0x170
[ 2184.238889][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2184.238889][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2184.238889][   T73]      netlink_rcv_skb+0x130/0x360
[ 2184.238889][   T73]      netlink_unicast+0x449/0x710
[ 2184.238889][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2184.238889][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2184.238889][   T73]      ___sys_sendmsg+0xee/0x170
[ 2184.238889][   T73]      __sys_sendmsg+0xcd/0x170
[ 2184.238889][   T73]      do_syscall_64+0xc6/0x1e0
[ 2184.238889][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2184.238889][   T73] 
[ 2184.240595][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2184.240882][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2184.240882][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2184.240882][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2184.240882][   T73]      fib6_nh_init+0xa22/0x1580
[ 2184.240882][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2184.240882][   T73]      ip6_route_add+0x1c/0x140
[ 2184.240882][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2184.240882][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2184.240882][   T73]      netlink_rcv_skb+0x130/0x360
[ 2184.240882][   T73]      netlink_unicast+0x449/0x710
[ 2184.240882][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2184.240882][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2184.240882][   T73]      ___sys_sendmsg+0xee/0x170
[ 2184.240882][   T73]      __sys_sendmsg+0xcd/0x170
[ 2184.240882][   T73]      do_syscall_64+0xc6/0x1e0
[ 2184.240882][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2184.240882][   T73] 
[ 2184.242955][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2184.242955][   T73]      dst_init+0x84/0x4a0
[ 2184.242955][   T73]      dst_alloc+0x97/0x150
[ 2184.242955][   T73]      ip6_dst_alloc+0x23/0x90
[ 2184.242955][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2184.242955][   T73]      ip6_pol_route+0x56f/0x840
[ 2184.242955][   T73]      fib6_rule_lookup+0x456/0x630
[ 2184.242955][   T73]      ip6_route_input+0x59c/0xa50
[ 2184.242955][   T73]      ipv6_rcv+0x397/0x810
[ 2184.242955][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2184.242955][   T73]      process_backlog+0x101/0x620
[ 2184.242955][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2184.242955][   T73]      net_rx_action+0x495/0xbe0
[ 2184.242955][   T73]      __do_softirq+0x1b5/0x7f6
[ 2184.242955][   T73] 
[ 2184.244798][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2184.244798][   T73]      netdev_get_by_index+0x5e/0x80
[ 2184.244798][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2184.244798][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2184.244798][   T73]      ip6_route_add+0x1c/0x140
[ 2184.244798][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2184.244798][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2184.244798][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2184.244798][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2184.244798][   T73]      netlink_rcv_skb+0x130/0x360
[ 2184.244798][   T73]      netlink_unicast+0x449/0x710
[ 2184.244798][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2184.244798][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2184.244798][   T73]      ___sys_sendmsg+0xee/0x170
[ 2184.244798][   T73]      __sys_sendmsg+0xcd/0x170
[ 2184.244798][   T73]      do_syscall_64+0xc6/0x1e0
[ 2184.244798][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2184.244798][   T73] 
[ 2184.247102][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2184.247102][   T73]      netdev_get_by_index+0x5e/0x80
[ 2184.247102][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2184.247102][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2184.247102][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2184.247102][   T73]      ipv6_add_addr+0x411/0x2000
[ 2184.247102][   T73]      inet6_addr_add+0x30e/0xa40
[ 2184.247102][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2184.247102][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2184.247102][   T73]      netlink_rcv_skb+0x130/0x360
[ 2184.247102][   T73]      netlink_unicast+0x449/0x710
[ 2184.247102][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2184.247102][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2184.247102][   T73]      ___sys_sendmsg+0xee/0x170
[ 2184.247102][   T73]      __sys_sendmsg+0xcd/0x170
[ 2184.247102][   T73]      do_syscall_64+0xc6/0x1e0
[ 2184.247102][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2184.247102][   T73] 
[ 2184.249287][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2184.249287][   T73]      netdev_get_by_index+0x5e/0x80
[ 2184.249287][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2184.249287][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2184.249287][   T73]      ip6_route_add+0x1c/0x140
[ 2184.249287][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2184.249287][   T73]      addrconf_add_dev+0xe2/0x170
[ 2184.249287][   T73]      inet6_addr_add+0x12f/0xa40
[ 2184.249287][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2184.249287][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2184.249287][   T73]      netlink_rcv_skb+0x130/0x360
[ 2184.249287][   T73]      netlink_unicast+0x449/0x710
[ 2184.249287][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2184.249287][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2184.249287][   T73]      ___sys_sendmsg+0xee/0x170
[ 2184.249287][   T73]      __sys_sendmsg+0xcd/0x170
[ 2184.249287][   T73]      do_syscall_64+0xc6/0x1e0
[ 2184.249287][   T73] 
[ 2184.251487][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2184.251487][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2184.251487][   T73]      ipv6_find_idev+0x102/0x170
[ 2184.251487][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2184.251487][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2184.251487][   T73]      netlink_rcv_skb+0x130/0x360
[ 2184.251487][   T73]      netlink_unicast+0x449/0x710
[ 2184.251487][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2184.251487][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2184.251487][   T73]      ___sys_sendmsg+0xee/0x170
[ 2184.251487][   T73]      __sys_sendmsg+0xcd/0x170
[ 2184.251487][   T73]      do_syscall_64+0xc6/0x1e0
[ 2184.251487][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2184.251487][   T73] 
[ 2184.253206][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2184.253206][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2184.253206][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2184.253206][   T73]      ipv6_find_idev+0x102/0x170
[ 2184.253206][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2184.253206][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2184.253206][   T73]      netlink_rcv_skb+0x130/0x360
[ 2184.253206][   T73]      netlink_unicast+0x449/0x710
[ 2184.253206][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2184.253206][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2184.253206][   T73]      ___sys_sendmsg+0xee/0x170
[ 2184.253206][   T73]      __sys_sendmsg+0xcd/0x170
[ 2184.253206][   T73]      do_syscall_64+0xc6/0x1e0
[ 2184.253206][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2184.253206][   T73] 
[ 2184.255269][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2184.255557][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2184.255557][   T73]      netdev_get_by_index+0x5e/0x80
[ 2184.255557][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2184.255557][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2184.255557][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2184.255557][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2184.255557][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2184.255557][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2184.255557][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2184.255557][   T73]      addrconf_dad_begin+0x310/0x670
[ 2184.255557][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2184.255557][   T73]      process_one_work+0x84d/0x18a0
[ 2184.255557][   T73]      worker_thread+0x587/0xd30
[ 2184.255557][   T73]      kthread+0x28a/0x350
[ 2184.255557][   T73]      ret_from_fork+0x31/0x70
[ 2184.255557][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2184.255557][   T73] 
[ 2184.257714][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2184.257714][   T73]      netdev_get_by_index+0x5e/0x80
[ 2184.257714][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2184.257714][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2184.257714][   T73]      ip6_route_add+0x1c/0x140
[ 2184.257714][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2184.257714][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2184.257714][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2184.257714][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2184.257714][   T73]      netlink_rcv_skb+0x130/0x360
[ 2184.257714][   T73]      netlink_unicast+0x449/0x710
[ 2184.257714][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2184.257714][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2184.257714][   T73]      ___sys_sendmsg+0xee/0x170
[ 2184.257714][   T73]      __sys_sendmsg+0xcd/0x170
[ 2184.257714][   T73]      do_syscall_64+0xc6/0x1e0
[ 2184.257714][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2184.257714][   T73] 
[ 2184.259891][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2184.259891][   T73]      netdev_get_by_index+0x5e/0x80
[ 2184.259891][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2184.259891][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2184.259891][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2184.259891][   T73]      ipv6_add_addr+0x411/0x2000
[ 2184.259891][   T73]      inet6_addr_add+0x30e/0xa40
[ 2184.259891][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2184.259891][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2184.259891][   T73]      netlink_rcv_skb+0x130/0x360
[ 2184.259891][   T73]      netlink_unicast+0x449/0x710
[ 2184.259891][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2184.259891][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2184.259891][   T73]      ___sys_sendmsg+0xee/0x170
[ 2184.259891][   T73]      __sys_sendmsg+0xcd/0x170
[ 2184.259891][   T73]      do_syscall_64+0xc6/0x1e0
[ 2184.259891][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2184.259891][   T73] 
[ 2184.262138][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2184.262138][   T73]      netdev_get_by_index+0x5e/0x80
[ 2184.262138][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2184.262138][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2184.262138][   T73]      ip6_route_add+0x1c/0x140
[ 2184.262138][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2184.262138][   T73]      addrconf_add_dev+0xe2/0x170
[ 2184.262138][   T73]      inet6_addr_add+0x12f/0xa40
[ 2184.262138][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2184.262138][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2184.262138][   T73]      netlink_rcv_skb+0x130/0x360
[ 2184.262138][   T73]      netlink_unicast+0x449/0x710
[ 2184.262138][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2184.262138][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2184.262138][   T73]      ___sys_sendmsg+0xee/0x170
[ 2184.262138][   T73]      __sys_sendmsg+0xcd/0x170
[ 2184.262138][   T73]      do_syscall_64+0xc6/0x1e0
[ 2184.262138][   T73] 
[ 2184.264415][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2184.264415][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2184.264415][   T73]      ipv6_find_idev+0x102/0x170
[ 2184.264415][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2184.264415][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2184.264415][   T73]      netlink_rcv_skb+0x130/0x360
[ 2184.264415][   T73]      netlink_unicast+0x449/0x710
[ 2184.264415][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2184.264415][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2184.264415][   T73]      ___sys_sendmsg+0xee/0x170
[ 2184.264415][   T73]      __sys_sendmsg+0xcd/0x170
[ 2184.264415][   T73]      do_syscall_64+0xc6/0x1e0
[ 2184.264415][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2184.264415][   T73] 
[ 2184.266150][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2184.266150][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2184.266150][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2184.266150][   T73]      ipv6_find_idev+0x102/0x170
[ 2184.266150][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2184.266150][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2184.266150][   T73]      netlink_rcv_skb+0x130/0x360
[ 2184.266150][   T73]      netlink_unicast+0x449/0x710
[ 2184.266150][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2184.266150][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2184.266150][   T73]      ___sys_sendmsg+0xee/0x170
[ 2184.266150][   T73]      __sys_sendmsg+0xcd/0x170
[ 2184.266150][   T73]      do_syscall_64+0xc6/0x1e0
[ 2184.266150][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2184.266150][   T73] 
[ 2194.423901][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2194.424551][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2194.424551][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2194.424551][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2194.424551][   T73]      fib6_nh_init+0xa22/0x1580
[ 2194.424551][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2194.424551][   T73]      ip6_route_add+0x1c/0x140
[ 2194.424551][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2194.424551][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2194.424551][   T73]      netlink_rcv_skb+0x130/0x360
[ 2194.424551][   T73]      netlink_unicast+0x449/0x710
[ 2194.424551][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2194.424551][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2194.424551][   T73]      ___sys_sendmsg+0xee/0x170
[ 2194.424551][   T73]      __sys_sendmsg+0xcd/0x170
[ 2194.424551][   T73]      do_syscall_64+0xc6/0x1e0
[ 2194.424551][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2194.424551][   T73] 
[ 2194.427696][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2194.427696][   T73]      dst_init+0x84/0x4a0
[ 2194.427696][   T73]      dst_alloc+0x97/0x150
[ 2194.427696][   T73]      ip6_dst_alloc+0x23/0x90
[ 2194.427696][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2194.427696][   T73]      ip6_pol_route+0x56f/0x840
[ 2194.427696][   T73]      fib6_rule_lookup+0x456/0x630
[ 2194.427696][   T73]      ip6_route_input+0x59c/0xa50
[ 2194.427696][   T73]      ipv6_rcv+0x397/0x810
[ 2194.427696][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2194.427696][   T73]      process_backlog+0x101/0x620
[ 2194.427696][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2194.427696][   T73]      net_rx_action+0x495/0xbe0
[ 2194.427696][   T73]      __do_softirq+0x1b5/0x7f6
[ 2194.427696][   T73] 
[ 2194.430393][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2194.430393][   T73]      netdev_get_by_index+0x5e/0x80
[ 2194.430393][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2194.430393][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2194.430393][   T73]      ip6_route_add+0x1c/0x140
[ 2194.430393][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2194.430393][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2194.430393][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2194.430393][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2194.430393][   T73]      netlink_rcv_skb+0x130/0x360
[ 2194.430393][   T73]      netlink_unicast+0x449/0x710
[ 2194.430393][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2194.430393][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2194.430393][   T73]      ___sys_sendmsg+0xee/0x170
[ 2194.430393][   T73]      __sys_sendmsg+0xcd/0x170
[ 2194.430393][   T73]      do_syscall_64+0xc6/0x1e0
[ 2194.430393][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2194.430393][   T73] 
[ 2194.433528][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2194.433528][   T73]      netdev_get_by_index+0x5e/0x80
[ 2194.433528][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2194.433528][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2194.433528][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2194.433528][   T73]      ipv6_add_addr+0x411/0x2000
[ 2194.433528][   T73]      inet6_addr_add+0x30e/0xa40
[ 2194.433528][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2194.433528][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2194.433528][   T73]      netlink_rcv_skb+0x130/0x360
[ 2194.433528][   T73]      netlink_unicast+0x449/0x710
[ 2194.433528][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2194.433528][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2194.433528][   T73]      ___sys_sendmsg+0xee/0x170
[ 2194.433528][   T73]      __sys_sendmsg+0xcd/0x170
[ 2194.433528][   T73]      do_syscall_64+0xc6/0x1e0
[ 2194.433528][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2194.433528][   T73] 
[ 2194.436204][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2194.436204][   T73]      netdev_get_by_index+0x5e/0x80
[ 2194.436204][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2194.436204][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2194.436204][   T73]      ip6_route_add+0x1c/0x140
[ 2194.436204][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2194.436204][   T73]      addrconf_add_dev+0xe2/0x170
[ 2194.436204][   T73]      inet6_addr_add+0x12f/0xa40
[ 2194.436204][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2194.436204][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2194.436204][   T73]      netlink_rcv_skb+0x130/0x360
[ 2194.436204][   T73]      netlink_unicast+0x449/0x710
[ 2194.436204][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2194.436204][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2194.436204][   T73]      ___sys_sendmsg+0xee/0x170
[ 2194.436204][   T73]      __sys_sendmsg+0xcd/0x170
[ 2194.436204][   T73]      do_syscall_64+0xc6/0x1e0
[ 2194.436204][   T73] 
[ 2194.438924][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2194.438924][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2194.438924][   T73]      ipv6_find_idev+0x102/0x170
[ 2194.438924][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2194.438924][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2194.438924][   T73]      netlink_rcv_skb+0x130/0x360
[ 2194.438924][   T73]      netlink_unicast+0x449/0x710
[ 2194.438924][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2194.438924][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2194.438924][   T73]      ___sys_sendmsg+0xee/0x170
[ 2194.438924][   T73]      __sys_sendmsg+0xcd/0x170
[ 2194.438924][   T73]      do_syscall_64+0xc6/0x1e0
[ 2194.438924][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2194.438924][   T73] 
[ 2194.440781][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2194.440781][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2194.440781][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2194.440781][   T73]      ipv6_find_idev+0x102/0x170
[ 2194.440781][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2194.440781][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2194.440781][   T73]      netlink_rcv_skb+0x130/0x360
[ 2194.440781][   T73]      netlink_unicast+0x449/0x710
[ 2194.440781][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2194.440781][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2194.440781][   T73]      ___sys_sendmsg+0xee/0x170
[ 2194.440781][   T73]      __sys_sendmsg+0xcd/0x170
[ 2194.440781][   T73]      do_syscall_64+0xc6/0x1e0
[ 2194.440781][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2194.440781][   T73] 
[ 2194.442950][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2194.443287][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2194.443287][   T73]      netdev_get_by_index+0x5e/0x80
[ 2194.443287][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2194.443287][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2194.443287][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2194.443287][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2194.443287][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2194.443287][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2194.443287][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2194.443287][   T73]      addrconf_dad_begin+0x310/0x670
[ 2194.443287][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2194.443287][   T73]      process_one_work+0x84d/0x18a0
[ 2194.443287][   T73]      worker_thread+0x587/0xd30
[ 2194.443287][   T73]      kthread+0x28a/0x350
[ 2194.443287][   T73]      ret_from_fork+0x31/0x70
[ 2194.443287][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2194.443287][   T73] 
[ 2194.445385][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2194.445385][   T73]      netdev_get_by_index+0x5e/0x80
[ 2194.445385][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2194.445385][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2194.445385][   T73]      ip6_route_add+0x1c/0x140
[ 2194.445385][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2194.445385][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2194.445385][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2194.445385][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2194.445385][   T73]      netlink_rcv_skb+0x130/0x360
[ 2194.445385][   T73]      netlink_unicast+0x449/0x710
[ 2194.445385][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2194.445385][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2194.445385][   T73]      ___sys_sendmsg+0xee/0x170
[ 2194.445385][   T73]      __sys_sendmsg+0xcd/0x170
[ 2194.445385][   T73]      do_syscall_64+0xc6/0x1e0
[ 2194.445385][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2194.445385][   T73] 
[ 2194.447447][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2194.447447][   T73]      netdev_get_by_index+0x5e/0x80
[ 2194.447447][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2194.447447][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2194.447447][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2194.447447][   T73]      ipv6_add_addr+0x411/0x2000
[ 2194.447447][   T73]      inet6_addr_add+0x30e/0xa40
[ 2194.447447][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2194.447447][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2194.447447][   T73]      netlink_rcv_skb+0x130/0x360
[ 2194.447447][   T73]      netlink_unicast+0x449/0x710
[ 2194.447447][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2194.447447][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2194.447447][   T73]      ___sys_sendmsg+0xee/0x170
[ 2194.447447][   T73]      __sys_sendmsg+0xcd/0x170
[ 2194.447447][   T73]      do_syscall_64+0xc6/0x1e0
[ 2194.447447][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2194.447447][   T73] 
[ 2194.449668][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2194.449668][   T73]      netdev_get_by_index+0x5e/0x80
[ 2194.449668][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2194.449668][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2194.449668][   T73]      ip6_route_add+0x1c/0x140
[ 2194.449668][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2194.449668][   T73]      addrconf_add_dev+0xe2/0x170
[ 2194.449668][   T73]      inet6_addr_add+0x12f/0xa40
[ 2194.449668][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2194.449668][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2194.449668][   T73]      netlink_rcv_skb+0x130/0x360
[ 2194.449668][   T73]      netlink_unicast+0x449/0x710
[ 2194.449668][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2194.449668][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2194.449668][   T73]      ___sys_sendmsg+0xee/0x170
[ 2194.449668][   T73]      __sys_sendmsg+0xcd/0x170
[ 2194.449668][   T73]      do_syscall_64+0xc6/0x1e0
[ 2194.449668][   T73] 
[ 2194.451808][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2194.451808][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2194.451808][   T73]      ipv6_find_idev+0x102/0x170
[ 2194.451808][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2194.451808][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2194.451808][   T73]      netlink_rcv_skb+0x130/0x360
[ 2194.451808][   T73]      netlink_unicast+0x449/0x710
[ 2194.451808][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2194.451808][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2194.451808][   T73]      ___sys_sendmsg+0xee/0x170
[ 2194.451808][   T73]      __sys_sendmsg+0xcd/0x170
[ 2194.451808][   T73]      do_syscall_64+0xc6/0x1e0
[ 2194.451808][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2194.451808][   T73] 
[ 2194.453510][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2194.453510][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2194.453510][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2194.453510][   T73]      ipv6_find_idev+0x102/0x170
[ 2194.453510][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2194.453510][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2194.453510][   T73]      netlink_rcv_skb+0x130/0x360
[ 2194.453510][   T73]      netlink_unicast+0x449/0x710
[ 2194.453510][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2194.453510][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2194.453510][   T73]      ___sys_sendmsg+0xee/0x170
[ 2194.453510][   T73]      __sys_sendmsg+0xcd/0x170
[ 2194.453510][   T73]      do_syscall_64+0xc6/0x1e0
[ 2194.453510][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2194.453510][   T73] 
[ 2194.455348][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2194.455650][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2194.455650][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2194.455650][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2194.455650][   T73]      fib6_nh_init+0xa22/0x1580
[ 2194.455650][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2194.455650][   T73]      ip6_route_add+0x1c/0x140
[ 2194.455650][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2194.455650][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2194.455650][   T73]      netlink_rcv_skb+0x130/0x360
[ 2194.455650][   T73]      netlink_unicast+0x449/0x710
[ 2194.455650][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2194.455650][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2194.455650][   T73]      ___sys_sendmsg+0xee/0x170
[ 2194.455650][   T73]      __sys_sendmsg+0xcd/0x170
[ 2194.455650][   T73]      do_syscall_64+0xc6/0x1e0
[ 2194.455650][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2194.455650][   T73] 
[ 2194.457878][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2194.457878][   T73]      dst_init+0x84/0x4a0
[ 2194.457878][   T73]      dst_alloc+0x97/0x150
[ 2194.457878][   T73]      ip6_dst_alloc+0x23/0x90
[ 2194.457878][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2194.457878][   T73]      ip6_pol_route+0x56f/0x840
[ 2194.457878][   T73]      fib6_rule_lookup+0x456/0x630
[ 2194.457878][   T73]      ip6_route_input+0x59c/0xa50
[ 2194.457878][   T73]      ipv6_rcv+0x397/0x810
[ 2194.457878][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2194.457878][   T73]      process_backlog+0x101/0x620
[ 2194.457878][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2194.457878][   T73]      net_rx_action+0x495/0xbe0
[ 2194.457878][   T73]      __do_softirq+0x1b5/0x7f6
[ 2194.457878][   T73] 
[ 2194.459796][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2194.459796][   T73]      netdev_get_by_index+0x5e/0x80
[ 2194.459796][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2194.459796][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2194.459796][   T73]      ip6_route_add+0x1c/0x140
[ 2194.459796][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2194.459796][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2194.459796][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2194.459796][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2194.459796][   T73]      netlink_rcv_skb+0x130/0x360
[ 2194.459796][   T73]      netlink_unicast+0x449/0x710
[ 2194.459796][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2194.459796][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2194.459796][   T73]      ___sys_sendmsg+0xee/0x170
[ 2194.459796][   T73]      __sys_sendmsg+0xcd/0x170
[ 2194.459796][   T73]      do_syscall_64+0xc6/0x1e0
[ 2194.459796][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2194.459796][   T73] 
[ 2194.462190][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2194.462190][   T73]      netdev_get_by_index+0x5e/0x80
[ 2194.462190][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2194.462190][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2194.462190][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2194.462190][   T73]      ipv6_add_addr+0x411/0x2000
[ 2194.462190][   T73]      inet6_addr_add+0x30e/0xa40
[ 2194.462190][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2194.462190][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2194.462190][   T73]      netlink_rcv_skb+0x130/0x360
[ 2194.462190][   T73]      netlink_unicast+0x449/0x710
[ 2194.462190][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2194.462190][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2194.462190][   T73]      ___sys_sendmsg+0xee/0x170
[ 2194.462190][   T73]      __sys_sendmsg+0xcd/0x170
[ 2194.462190][   T73]      do_syscall_64+0xc6/0x1e0
[ 2194.462190][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2194.462190][   T73] 
[ 2194.464601][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2194.464601][   T73]      netdev_get_by_index+0x5e/0x80
[ 2194.464601][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2194.464601][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2194.464601][   T73]      ip6_route_add+0x1c/0x140
[ 2194.464601][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2194.464601][   T73]      addrconf_add_dev+0xe2/0x170
[ 2194.464601][   T73]      inet6_addr_add+0x12f/0xa40
[ 2194.464601][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2194.464601][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2194.464601][   T73]      netlink_rcv_skb+0x130/0x360
[ 2194.464601][   T73]      netlink_unicast+0x449/0x710
[ 2194.464601][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2194.464601][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2194.464601][   T73]      ___sys_sendmsg+0xee/0x170
[ 2194.464601][   T73]      __sys_sendmsg+0xcd/0x170
[ 2194.464601][   T73]      do_syscall_64+0xc6/0x1e0
[ 2194.464601][   T73] 
[ 2194.467069][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2194.467069][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2194.467069][   T73]      ipv6_find_idev+0x102/0x170
[ 2194.467069][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2194.467069][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2194.467069][   T73]      netlink_rcv_skb+0x130/0x360
[ 2194.467069][   T73]      netlink_unicast+0x449/0x710
[ 2194.467069][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2194.467069][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2194.467069][   T73]      ___sys_sendmsg+0xee/0x170
[ 2194.467069][   T73]      __sys_sendmsg+0xcd/0x170
[ 2194.467069][   T73]      do_syscall_64+0xc6/0x1e0
[ 2194.467069][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2194.467069][   T73] 
[ 2194.468783][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2194.468783][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2194.468783][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2194.468783][   T73]      ipv6_find_idev+0x102/0x170
[ 2194.468783][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2194.468783][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2194.468783][   T73]      netlink_rcv_skb+0x130/0x360
[ 2194.468783][   T73]      netlink_unicast+0x449/0x710
[ 2194.468783][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2194.468783][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2194.468783][   T73]      ___sys_sendmsg+0xee/0x170
[ 2194.468783][   T73]      __sys_sendmsg+0xcd/0x170
[ 2194.468783][   T73]      do_syscall_64+0xc6/0x1e0
[ 2194.468783][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2194.468783][   T73] 
[ 2194.470794][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2194.471084][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2194.471084][   T73]      netdev_get_by_index+0x5e/0x80
[ 2194.471084][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2194.471084][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2194.471084][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2194.471084][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2194.471084][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2194.471084][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2194.471084][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2194.471084][   T73]      addrconf_dad_begin+0x310/0x670
[ 2194.471084][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2194.471084][   T73]      process_one_work+0x84d/0x18a0
[ 2194.471084][   T73]      worker_thread+0x587/0xd30
[ 2194.471084][   T73]      kthread+0x28a/0x350
[ 2194.471084][   T73]      ret_from_fork+0x31/0x70
[ 2194.471084][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2194.471084][   T73] 
[ 2194.473308][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2194.473308][   T73]      netdev_get_by_index+0x5e/0x80
[ 2194.473308][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2194.473308][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2194.473308][   T73]      ip6_route_add+0x1c/0x140
[ 2194.473308][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2194.473308][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2194.473308][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2194.473308][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2194.473308][   T73]      netlink_rcv_skb+0x130/0x360
[ 2194.473308][   T73]      netlink_unicast+0x449/0x710
[ 2194.473308][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2194.473308][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2194.473308][   T73]      ___sys_sendmsg+0xee/0x170
[ 2194.473308][   T73]      __sys_sendmsg+0xcd/0x170
[ 2194.473308][   T73]      do_syscall_64+0xc6/0x1e0
[ 2194.473308][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2194.473308][   T73] 
[ 2194.475718][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2194.475718][   T73]      netdev_get_by_index+0x5e/0x80
[ 2194.475718][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2194.475718][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2194.475718][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2194.475718][   T73]      ipv6_add_addr+0x411/0x2000
[ 2194.475718][   T73]      inet6_addr_add+0x30e/0xa40
[ 2194.475718][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2194.475718][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2194.475718][   T73]      netlink_rcv_skb+0x130/0x360
[ 2194.475718][   T73]      netlink_unicast+0x449/0x710
[ 2194.475718][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2194.475718][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2194.475718][   T73]      ___sys_sendmsg+0xee/0x170
[ 2194.475718][   T73]      __sys_sendmsg+0xcd/0x170
[ 2194.475718][   T73]      do_syscall_64+0xc6/0x1e0
[ 2194.475718][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2194.475718][   T73] 
[ 2194.478107][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2194.478107][   T73]      netdev_get_by_index+0x5e/0x80
[ 2194.478107][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2194.478107][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2194.478107][   T73]      ip6_route_add+0x1c/0x140
[ 2194.478107][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2194.478107][   T73]      addrconf_add_dev+0xe2/0x170
[ 2194.478107][   T73]      inet6_addr_add+0x12f/0xa40
[ 2194.478107][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2194.478107][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2194.478107][   T73]      netlink_rcv_skb+0x130/0x360
[ 2194.478107][   T73]      netlink_unicast+0x449/0x710
[ 2194.478107][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2194.478107][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2194.478107][   T73]      ___sys_sendmsg+0xee/0x170
[ 2194.478107][   T73]      __sys_sendmsg+0xcd/0x170
[ 2194.478107][   T73]      do_syscall_64+0xc6/0x1e0
[ 2194.478107][   T73] 
[ 2194.480453][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2194.480453][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2194.480453][   T73]      ipv6_find_idev+0x102/0x170
[ 2194.480453][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2194.480453][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2194.480453][   T73]      netlink_rcv_skb+0x130/0x360
[ 2194.480453][   T73]      netlink_unicast+0x449/0x710
[ 2194.480453][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2194.480453][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2194.480453][   T73]      ___sys_sendmsg+0xee/0x170
[ 2194.480453][   T73]      __sys_sendmsg+0xcd/0x170
[ 2194.480453][   T73]      do_syscall_64+0xc6/0x1e0
[ 2194.480453][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2194.480453][   T73] 
[ 2194.482301][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2194.482301][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2194.482301][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2194.482301][   T73]      ipv6_find_idev+0x102/0x170
[ 2194.482301][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2194.482301][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2194.482301][   T73]      netlink_rcv_skb+0x130/0x360
[ 2194.482301][   T73]      netlink_unicast+0x449/0x710
[ 2194.482301][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2194.482301][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2194.482301][   T73]      ___sys_sendmsg+0xee/0x170
[ 2194.482301][   T73]      __sys_sendmsg+0xcd/0x170
[ 2194.482301][   T73]      do_syscall_64+0xc6/0x1e0
[ 2194.482301][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2194.482301][   T73] 
[ 2204.519788][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2204.520210][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2204.520210][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2204.520210][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2204.520210][   T73]      fib6_nh_init+0xa22/0x1580
[ 2204.520210][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2204.520210][   T73]      ip6_route_add+0x1c/0x140
[ 2204.520210][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2204.520210][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2204.520210][   T73]      netlink_rcv_skb+0x130/0x360
[ 2204.520210][   T73]      netlink_unicast+0x449/0x710
[ 2204.520210][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2204.520210][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2204.520210][   T73]      ___sys_sendmsg+0xee/0x170
[ 2204.520210][   T73]      __sys_sendmsg+0xcd/0x170
[ 2204.520210][   T73]      do_syscall_64+0xc6/0x1e0
[ 2204.520210][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2204.520210][   T73] 
[ 2204.522105][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2204.522105][   T73]      dst_init+0x84/0x4a0
[ 2204.522105][   T73]      dst_alloc+0x97/0x150
[ 2204.522105][   T73]      ip6_dst_alloc+0x23/0x90
[ 2204.522105][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2204.522105][   T73]      ip6_pol_route+0x56f/0x840
[ 2204.522105][   T73]      fib6_rule_lookup+0x456/0x630
[ 2204.522105][   T73]      ip6_route_input+0x59c/0xa50
[ 2204.522105][   T73]      ipv6_rcv+0x397/0x810
[ 2204.522105][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2204.522105][   T73]      process_backlog+0x101/0x620
[ 2204.522105][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2204.522105][   T73]      net_rx_action+0x495/0xbe0
[ 2204.522105][   T73]      __do_softirq+0x1b5/0x7f6
[ 2204.522105][   T73] 
[ 2204.523783][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2204.523783][   T73]      netdev_get_by_index+0x5e/0x80
[ 2204.523783][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2204.523783][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2204.523783][   T73]      ip6_route_add+0x1c/0x140
[ 2204.523783][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2204.523783][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2204.523783][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2204.523783][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2204.523783][   T73]      netlink_rcv_skb+0x130/0x360
[ 2204.523783][   T73]      netlink_unicast+0x449/0x710
[ 2204.523783][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2204.523783][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2204.523783][   T73]      ___sys_sendmsg+0xee/0x170
[ 2204.523783][   T73]      __sys_sendmsg+0xcd/0x170
[ 2204.523783][   T73]      do_syscall_64+0xc6/0x1e0
[ 2204.523783][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2204.523783][   T73] 
[ 2204.525797][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2204.525797][   T73]      netdev_get_by_index+0x5e/0x80
[ 2204.525797][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2204.525797][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2204.525797][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2204.525797][   T73]      ipv6_add_addr+0x411/0x2000
[ 2204.525797][   T73]      inet6_addr_add+0x30e/0xa40
[ 2204.525797][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2204.525797][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2204.525797][   T73]      netlink_rcv_skb+0x130/0x360
[ 2204.525797][   T73]      netlink_unicast+0x449/0x710
[ 2204.525797][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2204.525797][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2204.525797][   T73]      ___sys_sendmsg+0xee/0x170
[ 2204.525797][   T73]      __sys_sendmsg+0xcd/0x170
[ 2204.525797][   T73]      do_syscall_64+0xc6/0x1e0
[ 2204.525797][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2204.525797][   T73] 
[ 2204.527807][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2204.527807][   T73]      netdev_get_by_index+0x5e/0x80
[ 2204.527807][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2204.527807][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2204.527807][   T73]      ip6_route_add+0x1c/0x140
[ 2204.527807][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2204.527807][   T73]      addrconf_add_dev+0xe2/0x170
[ 2204.527807][   T73]      inet6_addr_add+0x12f/0xa40
[ 2204.527807][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2204.527807][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2204.527807][   T73]      netlink_rcv_skb+0x130/0x360
[ 2204.527807][   T73]      netlink_unicast+0x449/0x710
[ 2204.527807][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2204.527807][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2204.527807][   T73]      ___sys_sendmsg+0xee/0x170
[ 2204.527807][   T73]      __sys_sendmsg+0xcd/0x170
[ 2204.527807][   T73]      do_syscall_64+0xc6/0x1e0
[ 2204.527807][   T73] 
[ 2204.529770][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2204.529770][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2204.529770][   T73]      ipv6_find_idev+0x102/0x170
[ 2204.529770][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2204.529770][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2204.529770][   T73]      netlink_rcv_skb+0x130/0x360
[ 2204.529770][   T73]      netlink_unicast+0x449/0x710
[ 2204.529770][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2204.529770][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2204.529770][   T73]      ___sys_sendmsg+0xee/0x170
[ 2204.529770][   T73]      __sys_sendmsg+0xcd/0x170
[ 2204.529770][   T73]      do_syscall_64+0xc6/0x1e0
[ 2204.529770][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2204.529770][   T73] 
[ 2204.531336][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2204.531336][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2204.531336][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2204.531336][   T73]      ipv6_find_idev+0x102/0x170
[ 2204.531336][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2204.531336][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2204.531336][   T73]      netlink_rcv_skb+0x130/0x360
[ 2204.531336][   T73]      netlink_unicast+0x449/0x710
[ 2204.531336][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2204.531336][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2204.531336][   T73]      ___sys_sendmsg+0xee/0x170
[ 2204.531336][   T73]      __sys_sendmsg+0xcd/0x170
[ 2204.531336][   T73]      do_syscall_64+0xc6/0x1e0
[ 2204.531336][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2204.531336][   T73] 
[ 2204.533054][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2204.533343][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2204.533343][   T73]      netdev_get_by_index+0x5e/0x80
[ 2204.533343][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2204.533343][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2204.533343][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2204.533343][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2204.533343][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2204.533343][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2204.533343][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2204.533343][   T73]      addrconf_dad_begin+0x310/0x670
[ 2204.533343][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2204.533343][   T73]      process_one_work+0x84d/0x18a0
[ 2204.533343][   T73]      worker_thread+0x587/0xd30
[ 2204.533343][   T73]      kthread+0x28a/0x350
[ 2204.533343][   T73]      ret_from_fork+0x31/0x70
[ 2204.533343][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2204.533343][   T73] 
[ 2204.535292][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2204.535292][   T73]      netdev_get_by_index+0x5e/0x80
[ 2204.535292][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2204.535292][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2204.535292][   T73]      ip6_route_add+0x1c/0x140
[ 2204.535292][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2204.535292][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2204.535292][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2204.535292][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2204.535292][   T73]      netlink_rcv_skb+0x130/0x360
[ 2204.535292][   T73]      netlink_unicast+0x449/0x710
[ 2204.535292][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2204.535292][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2204.535292][   T73]      ___sys_sendmsg+0xee/0x170
[ 2204.535292][   T73]      __sys_sendmsg+0xcd/0x170
[ 2204.535292][   T73]      do_syscall_64+0xc6/0x1e0
[ 2204.535292][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2204.535292][   T73] 
[ 2204.537280][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2204.537280][   T73]      netdev_get_by_index+0x5e/0x80
[ 2204.537280][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2204.537280][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2204.537280][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2204.537280][   T73]      ipv6_add_addr+0x411/0x2000
[ 2204.537280][   T73]      inet6_addr_add+0x30e/0xa40
[ 2204.537280][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2204.537280][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2204.537280][   T73]      netlink_rcv_skb+0x130/0x360
[ 2204.537280][   T73]      netlink_unicast+0x449/0x710
[ 2204.537280][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2204.537280][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2204.537280][   T73]      ___sys_sendmsg+0xee/0x170
[ 2204.537280][   T73]      __sys_sendmsg+0xcd/0x170
[ 2204.537280][   T73]      do_syscall_64+0xc6/0x1e0
[ 2204.537280][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2204.537280][   T73] 
[ 2204.539287][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2204.539287][   T73]      netdev_get_by_index+0x5e/0x80
[ 2204.539287][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2204.539287][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2204.539287][   T73]      ip6_route_add+0x1c/0x140
[ 2204.539287][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2204.539287][   T73]      addrconf_add_dev+0xe2/0x170
[ 2204.539287][   T73]      inet6_addr_add+0x12f/0xa40
[ 2204.539287][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2204.539287][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2204.539287][   T73]      netlink_rcv_skb+0x130/0x360
[ 2204.539287][   T73]      netlink_unicast+0x449/0x710
[ 2204.539287][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2204.539287][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2204.539287][   T73]      ___sys_sendmsg+0xee/0x170
[ 2204.539287][   T73]      __sys_sendmsg+0xcd/0x170
[ 2204.539287][   T73]      do_syscall_64+0xc6/0x1e0
[ 2204.539287][   T73] 
[ 2204.541237][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2204.541237][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2204.541237][   T73]      ipv6_find_idev+0x102/0x170
[ 2204.541237][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2204.541237][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2204.541237][   T73]      netlink_rcv_skb+0x130/0x360
[ 2204.541237][   T73]      netlink_unicast+0x449/0x710
[ 2204.541237][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2204.541237][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2204.541237][   T73]      ___sys_sendmsg+0xee/0x170
[ 2204.541237][   T73]      __sys_sendmsg+0xcd/0x170
[ 2204.541237][   T73]      do_syscall_64+0xc6/0x1e0
[ 2204.541237][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2204.541237][   T73] 
[ 2204.542793][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2204.542793][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2204.542793][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2204.542793][   T73]      ipv6_find_idev+0x102/0x170
[ 2204.542793][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2204.542793][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2204.542793][   T73]      netlink_rcv_skb+0x130/0x360
[ 2204.542793][   T73]      netlink_unicast+0x449/0x710
[ 2204.542793][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2204.542793][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2204.542793][   T73]      ___sys_sendmsg+0xee/0x170
[ 2204.542793][   T73]      __sys_sendmsg+0xcd/0x170
[ 2204.542793][   T73]      do_syscall_64+0xc6/0x1e0
[ 2204.542793][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2204.542793][   T73] 
[ 2204.544488][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2204.544770][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2204.544770][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2204.544770][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2204.544770][   T73]      fib6_nh_init+0xa22/0x1580
[ 2204.544770][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2204.544770][   T73]      ip6_route_add+0x1c/0x140
[ 2204.544770][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2204.544770][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2204.544770][   T73]      netlink_rcv_skb+0x130/0x360
[ 2204.544770][   T73]      netlink_unicast+0x449/0x710
[ 2204.544770][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2204.544770][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2204.544770][   T73]      ___sys_sendmsg+0xee/0x170
[ 2204.544770][   T73]      __sys_sendmsg+0xcd/0x170
[ 2204.544770][   T73]      do_syscall_64+0xc6/0x1e0
[ 2204.544770][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2204.544770][   T73] 
[ 2204.546895][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2204.546895][   T73]      dst_init+0x84/0x4a0
[ 2204.546895][   T73]      dst_alloc+0x97/0x150
[ 2204.546895][   T73]      ip6_dst_alloc+0x23/0x90
[ 2204.546895][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2204.546895][   T73]      ip6_pol_route+0x56f/0x840
[ 2204.546895][   T73]      fib6_rule_lookup+0x456/0x630
[ 2204.546895][   T73]      ip6_route_input+0x59c/0xa50
[ 2204.546895][   T73]      ipv6_rcv+0x397/0x810
[ 2204.546895][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2204.546895][   T73]      process_backlog+0x101/0x620
[ 2204.546895][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2204.546895][   T73]      net_rx_action+0x495/0xbe0
[ 2204.546895][   T73]      __do_softirq+0x1b5/0x7f6
[ 2204.546895][   T73] 
[ 2204.548809][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2204.548809][   T73]      netdev_get_by_index+0x5e/0x80
[ 2204.548809][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2204.548809][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2204.548809][   T73]      ip6_route_add+0x1c/0x140
[ 2204.548809][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2204.548809][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2204.548809][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2204.548809][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2204.548809][   T73]      netlink_rcv_skb+0x130/0x360
[ 2204.548809][   T73]      netlink_unicast+0x449/0x710
[ 2204.548809][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2204.548809][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2204.548809][   T73]      ___sys_sendmsg+0xee/0x170
[ 2204.548809][   T73]      __sys_sendmsg+0xcd/0x170
[ 2204.548809][   T73]      do_syscall_64+0xc6/0x1e0
[ 2204.548809][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2204.548809][   T73] 
[ 2204.551034][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2204.551034][   T73]      netdev_get_by_index+0x5e/0x80
[ 2204.551034][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2204.551034][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2204.551034][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2204.551034][   T73]      ipv6_add_addr+0x411/0x2000
[ 2204.551034][   T73]      inet6_addr_add+0x30e/0xa40
[ 2204.551034][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2204.551034][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2204.551034][   T73]      netlink_rcv_skb+0x130/0x360
[ 2204.551034][   T73]      netlink_unicast+0x449/0x710
[ 2204.551034][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2204.551034][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2204.551034][   T73]      ___sys_sendmsg+0xee/0x170
[ 2204.551034][   T73]      __sys_sendmsg+0xcd/0x170
[ 2204.551034][   T73]      do_syscall_64+0xc6/0x1e0
[ 2204.551034][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2204.551034][   T73] 
[ 2204.553316][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2204.553316][   T73]      netdev_get_by_index+0x5e/0x80
[ 2204.553316][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2204.553316][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2204.553316][   T73]      ip6_route_add+0x1c/0x140
[ 2204.553316][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2204.553316][   T73]      addrconf_add_dev+0xe2/0x170
[ 2204.553316][   T73]      inet6_addr_add+0x12f/0xa40
[ 2204.553316][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2204.553316][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2204.553316][   T73]      netlink_rcv_skb+0x130/0x360
[ 2204.553316][   T73]      netlink_unicast+0x449/0x710
[ 2204.553316][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2204.553316][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2204.553316][   T73]      ___sys_sendmsg+0xee/0x170
[ 2204.553316][   T73]      __sys_sendmsg+0xcd/0x170
[ 2204.553316][   T73]      do_syscall_64+0xc6/0x1e0
[ 2204.553316][   T73] 
[ 2204.555494][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2204.555494][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2204.555494][   T73]      ipv6_find_idev+0x102/0x170
[ 2204.555494][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2204.555494][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2204.555494][   T73]      netlink_rcv_skb+0x130/0x360
[ 2204.555494][   T73]      netlink_unicast+0x449/0x710
[ 2204.555494][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2204.555494][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2204.555494][   T73]      ___sys_sendmsg+0xee/0x170
[ 2204.555494][   T73]      __sys_sendmsg+0xcd/0x170
[ 2204.555494][   T73]      do_syscall_64+0xc6/0x1e0
[ 2204.555494][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2204.555494][   T73] 
[ 2204.557276][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2204.557276][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2204.557276][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2204.557276][   T73]      ipv6_find_idev+0x102/0x170
[ 2204.557276][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2204.557276][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2204.557276][   T73]      netlink_rcv_skb+0x130/0x360
[ 2204.557276][   T73]      netlink_unicast+0x449/0x710
[ 2204.557276][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2204.557276][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2204.557276][   T73]      ___sys_sendmsg+0xee/0x170
[ 2204.557276][   T73]      __sys_sendmsg+0xcd/0x170
[ 2204.557276][   T73]      do_syscall_64+0xc6/0x1e0
[ 2204.557276][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2204.557276][   T73] 
[ 2204.559192][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2204.559528][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2204.559528][   T73]      netdev_get_by_index+0x5e/0x80
[ 2204.559528][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2204.559528][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2204.559528][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2204.559528][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2204.559528][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2204.559528][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2204.559528][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2204.559528][   T73]      addrconf_dad_begin+0x310/0x670
[ 2204.559528][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2204.559528][   T73]      process_one_work+0x84d/0x18a0
[ 2204.559528][   T73]      worker_thread+0x587/0xd30
[ 2204.559528][   T73]      kthread+0x28a/0x350
[ 2204.559528][   T73]      ret_from_fork+0x31/0x70
[ 2204.559528][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2204.559528][   T73] 
[ 2204.561622][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2204.561622][   T73]      netdev_get_by_index+0x5e/0x80
[ 2204.561622][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2204.561622][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2204.561622][   T73]      ip6_route_add+0x1c/0x140
[ 2204.561622][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2204.561622][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2204.561622][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2204.561622][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2204.561622][   T73]      netlink_rcv_skb+0x130/0x360
[ 2204.561622][   T73]      netlink_unicast+0x449/0x710
[ 2204.561622][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2204.561622][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2204.561622][   T73]      ___sys_sendmsg+0xee/0x170
[ 2204.561622][   T73]      __sys_sendmsg+0xcd/0x170
[ 2204.561622][   T73]      do_syscall_64+0xc6/0x1e0
[ 2204.561622][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2204.561622][   T73] 
[ 2204.563879][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2204.563879][   T73]      netdev_get_by_index+0x5e/0x80
[ 2204.563879][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2204.563879][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2204.563879][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2204.563879][   T73]      ipv6_add_addr+0x411/0x2000
[ 2204.563879][   T73]      inet6_addr_add+0x30e/0xa40
[ 2204.563879][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2204.563879][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2204.563879][   T73]      netlink_rcv_skb+0x130/0x360
[ 2204.563879][   T73]      netlink_unicast+0x449/0x710
[ 2204.563879][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2204.563879][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2204.563879][   T73]      ___sys_sendmsg+0xee/0x170
[ 2204.563879][   T73]      __sys_sendmsg+0xcd/0x170
[ 2204.563879][   T73]      do_syscall_64+0xc6/0x1e0
[ 2204.563879][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2204.563879][   T73] 
[ 2204.566122][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2204.566122][   T73]      netdev_get_by_index+0x5e/0x80
[ 2204.566122][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2204.566122][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2204.566122][   T73]      ip6_route_add+0x1c/0x140
[ 2204.566122][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2204.566122][   T73]      addrconf_add_dev+0xe2/0x170
[ 2204.566122][   T73]      inet6_addr_add+0x12f/0xa40
[ 2204.566122][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2204.566122][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2204.566122][   T73]      netlink_rcv_skb+0x130/0x360
[ 2204.566122][   T73]      netlink_unicast+0x449/0x710
[ 2204.566122][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2204.566122][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2204.566122][   T73]      ___sys_sendmsg+0xee/0x170
[ 2204.566122][   T73]      __sys_sendmsg+0xcd/0x170
[ 2204.566122][   T73]      do_syscall_64+0xc6/0x1e0
[ 2204.566122][   T73] 
[ 2204.568405][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2204.568405][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2204.568405][   T73]      ipv6_find_idev+0x102/0x170
[ 2204.568405][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2204.568405][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2204.568405][   T73]      netlink_rcv_skb+0x130/0x360
[ 2204.568405][   T73]      netlink_unicast+0x449/0x710
[ 2204.568405][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2204.568405][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2204.568405][   T73]      ___sys_sendmsg+0xee/0x170
[ 2204.568405][   T73]      __sys_sendmsg+0xcd/0x170
[ 2204.568405][   T73]      do_syscall_64+0xc6/0x1e0
[ 2204.568405][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2204.568405][   T73] 
[ 2204.570141][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2204.570141][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2204.570141][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2204.570141][   T73]      ipv6_find_idev+0x102/0x170
[ 2204.570141][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2204.570141][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2204.570141][   T73]      netlink_rcv_skb+0x130/0x360
[ 2204.570141][   T73]      netlink_unicast+0x449/0x710
[ 2204.570141][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2204.570141][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2204.570141][   T73]      ___sys_sendmsg+0xee/0x170
[ 2204.570141][   T73]      __sys_sendmsg+0xcd/0x170
[ 2204.570141][   T73]      do_syscall_64+0xc6/0x1e0
[ 2204.570141][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2204.570141][   T73] 
[ 2214.631843][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2214.632328][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2214.632328][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2214.632328][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2214.632328][   T73]      fib6_nh_init+0xa22/0x1580
[ 2214.632328][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2214.632328][   T73]      ip6_route_add+0x1c/0x140
[ 2214.632328][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2214.632328][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2214.632328][   T73]      netlink_rcv_skb+0x130/0x360
[ 2214.632328][   T73]      netlink_unicast+0x449/0x710
[ 2214.632328][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2214.632328][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2214.632328][   T73]      ___sys_sendmsg+0xee/0x170
[ 2214.632328][   T73]      __sys_sendmsg+0xcd/0x170
[ 2214.632328][   T73]      do_syscall_64+0xc6/0x1e0
[ 2214.632328][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2214.632328][   T73] 
[ 2214.634237][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2214.634237][   T73]      dst_init+0x84/0x4a0
[ 2214.634237][   T73]      dst_alloc+0x97/0x150
[ 2214.634237][   T73]      ip6_dst_alloc+0x23/0x90
[ 2214.634237][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2214.634237][   T73]      ip6_pol_route+0x56f/0x840
[ 2214.634237][   T73]      fib6_rule_lookup+0x456/0x630
[ 2214.634237][   T73]      ip6_route_input+0x59c/0xa50
[ 2214.634237][   T73]      ipv6_rcv+0x397/0x810
[ 2214.634237][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2214.634237][   T73]      process_backlog+0x101/0x620
[ 2214.634237][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2214.634237][   T73]      net_rx_action+0x495/0xbe0
[ 2214.634237][   T73]      __do_softirq+0x1b5/0x7f6
[ 2214.634237][   T73] 
[ 2214.635915][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2214.635915][   T73]      netdev_get_by_index+0x5e/0x80
[ 2214.635915][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2214.635915][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2214.635915][   T73]      ip6_route_add+0x1c/0x140
[ 2214.635915][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2214.635915][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2214.635915][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2214.635915][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2214.635915][   T73]      netlink_rcv_skb+0x130/0x360
[ 2214.635915][   T73]      netlink_unicast+0x449/0x710
[ 2214.635915][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2214.635915][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2214.635915][   T73]      ___sys_sendmsg+0xee/0x170
[ 2214.635915][   T73]      __sys_sendmsg+0xcd/0x170
[ 2214.635915][   T73]      do_syscall_64+0xc6/0x1e0
[ 2214.635915][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2214.635915][   T73] 
[ 2214.637922][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2214.637922][   T73]      netdev_get_by_index+0x5e/0x80
[ 2214.637922][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2214.637922][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2214.637922][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2214.637922][   T73]      ipv6_add_addr+0x411/0x2000
[ 2214.637922][   T73]      inet6_addr_add+0x30e/0xa40
[ 2214.637922][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2214.637922][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2214.637922][   T73]      netlink_rcv_skb+0x130/0x360
[ 2214.637922][   T73]      netlink_unicast+0x449/0x710
[ 2214.637922][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2214.637922][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2214.637922][   T73]      ___sys_sendmsg+0xee/0x170
[ 2214.637922][   T73]      __sys_sendmsg+0xcd/0x170
[ 2214.637922][   T73]      do_syscall_64+0xc6/0x1e0
[ 2214.637922][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2214.637922][   T73] 
[ 2214.639915][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2214.639915][   T73]      netdev_get_by_index+0x5e/0x80
[ 2214.639915][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2214.639915][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2214.639915][   T73]      ip6_route_add+0x1c/0x140
[ 2214.639915][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2214.639915][   T73]      addrconf_add_dev+0xe2/0x170
[ 2214.639915][   T73]      inet6_addr_add+0x12f/0xa40
[ 2214.639915][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2214.639915][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2214.639915][   T73]      netlink_rcv_skb+0x130/0x360
[ 2214.639915][   T73]      netlink_unicast+0x449/0x710
[ 2214.639915][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2214.639915][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2214.639915][   T73]      ___sys_sendmsg+0xee/0x170
[ 2214.639915][   T73]      __sys_sendmsg+0xcd/0x170
[ 2214.639915][   T73]      do_syscall_64+0xc6/0x1e0
[ 2214.639915][   T73] 
[ 2214.641907][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2214.641907][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2214.641907][   T73]      ipv6_find_idev+0x102/0x170
[ 2214.641907][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2214.641907][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2214.641907][   T73]      netlink_rcv_skb+0x130/0x360
[ 2214.641907][   T73]      netlink_unicast+0x449/0x710
[ 2214.641907][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2214.641907][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2214.641907][   T73]      ___sys_sendmsg+0xee/0x170
[ 2214.641907][   T73]      __sys_sendmsg+0xcd/0x170
[ 2214.641907][   T73]      do_syscall_64+0xc6/0x1e0
[ 2214.641907][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2214.641907][   T73] 
[ 2214.643437][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2214.643437][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2214.643437][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2214.643437][   T73]      ipv6_find_idev+0x102/0x170
[ 2214.643437][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2214.643437][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2214.643437][   T73]      netlink_rcv_skb+0x130/0x360
[ 2214.643437][   T73]      netlink_unicast+0x449/0x710
[ 2214.643437][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2214.643437][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2214.643437][   T73]      ___sys_sendmsg+0xee/0x170
[ 2214.643437][   T73]      __sys_sendmsg+0xcd/0x170
[ 2214.643437][   T73]      do_syscall_64+0xc6/0x1e0
[ 2214.643437][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2214.643437][   T73] 
[ 2214.645136][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2214.645420][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2214.645420][   T73]      netdev_get_by_index+0x5e/0x80
[ 2214.645420][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2214.645420][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2214.645420][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2214.645420][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2214.645420][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2214.645420][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2214.645420][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2214.645420][   T73]      addrconf_dad_begin+0x310/0x670
[ 2214.645420][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2214.645420][   T73]      process_one_work+0x84d/0x18a0
[ 2214.645420][   T73]      worker_thread+0x587/0xd30
[ 2214.645420][   T73]      kthread+0x28a/0x350
[ 2214.645420][   T73]      ret_from_fork+0x31/0x70
[ 2214.645420][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2214.645420][   T73] 
[ 2214.647338][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2214.647338][   T73]      netdev_get_by_index+0x5e/0x80
[ 2214.647338][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2214.647338][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2214.647338][   T73]      ip6_route_add+0x1c/0x140
[ 2214.647338][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2214.647338][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2214.647338][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2214.647338][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2214.647338][   T73]      netlink_rcv_skb+0x130/0x360
[ 2214.647338][   T73]      netlink_unicast+0x449/0x710
[ 2214.647338][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2214.647338][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2214.647338][   T73]      ___sys_sendmsg+0xee/0x170
[ 2214.647338][   T73]      __sys_sendmsg+0xcd/0x170
[ 2214.647338][   T73]      do_syscall_64+0xc6/0x1e0
[ 2214.647338][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2214.647338][   T73] 
[ 2214.649326][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2214.649326][   T73]      netdev_get_by_index+0x5e/0x80
[ 2214.649326][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2214.649326][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2214.649326][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2214.649326][   T73]      ipv6_add_addr+0x411/0x2000
[ 2214.649326][   T73]      inet6_addr_add+0x30e/0xa40
[ 2214.649326][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2214.649326][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2214.649326][   T73]      netlink_rcv_skb+0x130/0x360
[ 2214.649326][   T73]      netlink_unicast+0x449/0x710
[ 2214.649326][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2214.649326][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2214.649326][   T73]      ___sys_sendmsg+0xee/0x170
[ 2214.649326][   T73]      __sys_sendmsg+0xcd/0x170
[ 2214.649326][   T73]      do_syscall_64+0xc6/0x1e0
[ 2214.649326][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2214.649326][   T73] 
[ 2214.652032][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2214.652032][   T73]      netdev_get_by_index+0x5e/0x80
[ 2214.652032][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2214.652032][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2214.652032][   T73]      ip6_route_add+0x1c/0x140
[ 2214.652032][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2214.652032][   T73]      addrconf_add_dev+0xe2/0x170
[ 2214.652032][   T73]      inet6_addr_add+0x12f/0xa40
[ 2214.652032][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2214.652032][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2214.652032][   T73]      netlink_rcv_skb+0x130/0x360
[ 2214.652032][   T73]      netlink_unicast+0x449/0x710
[ 2214.652032][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2214.652032][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2214.652032][   T73]      ___sys_sendmsg+0xee/0x170
[ 2214.652032][   T73]      __sys_sendmsg+0xcd/0x170
[ 2214.652032][   T73]      do_syscall_64+0xc6/0x1e0
[ 2214.652032][   T73] 
[ 2214.655239][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2214.655239][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2214.655239][   T73]      ipv6_find_idev+0x102/0x170
[ 2214.655239][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2214.655239][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2214.655239][   T73]      netlink_rcv_skb+0x130/0x360
[ 2214.655239][   T73]      netlink_unicast+0x449/0x710
[ 2214.655239][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2214.655239][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2214.655239][   T73]      ___sys_sendmsg+0xee/0x170
[ 2214.655239][   T73]      __sys_sendmsg+0xcd/0x170
[ 2214.655239][   T73]      do_syscall_64+0xc6/0x1e0
[ 2214.655239][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2214.655239][   T73] 
[ 2214.657695][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2214.657695][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2214.657695][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2214.657695][   T73]      ipv6_find_idev+0x102/0x170
[ 2214.657695][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2214.657695][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2214.657695][   T73]      netlink_rcv_skb+0x130/0x360
[ 2214.657695][   T73]      netlink_unicast+0x449/0x710
[ 2214.657695][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2214.657695][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2214.657695][   T73]      ___sys_sendmsg+0xee/0x170
[ 2214.657695][   T73]      __sys_sendmsg+0xcd/0x170
[ 2214.657695][   T73]      do_syscall_64+0xc6/0x1e0
[ 2214.657695][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2214.657695][   T73] 
[ 2214.660411][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2214.660885][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2214.660885][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2214.660885][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2214.660885][   T73]      fib6_nh_init+0xa22/0x1580
[ 2214.660885][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2214.660885][   T73]      ip6_route_add+0x1c/0x140
[ 2214.660885][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2214.660885][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2214.660885][   T73]      netlink_rcv_skb+0x130/0x360
[ 2214.660885][   T73]      netlink_unicast+0x449/0x710
[ 2214.660885][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2214.660885][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2214.660885][   T73]      ___sys_sendmsg+0xee/0x170
[ 2214.660885][   T73]      __sys_sendmsg+0xcd/0x170
[ 2214.660885][   T73]      do_syscall_64+0xc6/0x1e0
[ 2214.660885][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2214.660885][   T73] 
[ 2214.664206][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2214.664206][   T73]      dst_init+0x84/0x4a0
[ 2214.664206][   T73]      dst_alloc+0x97/0x150
[ 2214.664206][   T73]      ip6_dst_alloc+0x23/0x90
[ 2214.664206][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2214.664206][   T73]      ip6_pol_route+0x56f/0x840
[ 2214.664206][   T73]      fib6_rule_lookup+0x456/0x630
[ 2214.664206][   T73]      ip6_route_input+0x59c/0xa50
[ 2214.664206][   T73]      ipv6_rcv+0x397/0x810
[ 2214.664206][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2214.664206][   T73]      process_backlog+0x101/0x620
[ 2214.664206][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2214.664206][   T73]      net_rx_action+0x495/0xbe0
[ 2214.664206][   T73]      __do_softirq+0x1b5/0x7f6
[ 2214.664206][   T73] 
[ 2214.667115][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2214.667115][   T73]      netdev_get_by_index+0x5e/0x80
[ 2214.667115][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2214.667115][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2214.667115][   T73]      ip6_route_add+0x1c/0x140
[ 2214.667115][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2214.667115][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2214.667115][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2214.667115][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2214.667115][   T73]      netlink_rcv_skb+0x130/0x360
[ 2214.667115][   T73]      netlink_unicast+0x449/0x710
[ 2214.667115][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2214.667115][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2214.667115][   T73]      ___sys_sendmsg+0xee/0x170
[ 2214.667115][   T73]      __sys_sendmsg+0xcd/0x170
[ 2214.667115][   T73]      do_syscall_64+0xc6/0x1e0
[ 2214.667115][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2214.667115][   T73] 
[ 2214.670666][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2214.670666][   T73]      netdev_get_by_index+0x5e/0x80
[ 2214.670666][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2214.670666][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2214.670666][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2214.670666][   T73]      ipv6_add_addr+0x411/0x2000
[ 2214.670666][   T73]      inet6_addr_add+0x30e/0xa40
[ 2214.670666][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2214.670666][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2214.670666][   T73]      netlink_rcv_skb+0x130/0x360
[ 2214.670666][   T73]      netlink_unicast+0x449/0x710
[ 2214.670666][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2214.670666][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2214.670666][   T73]      ___sys_sendmsg+0xee/0x170
[ 2214.670666][   T73]      __sys_sendmsg+0xcd/0x170
[ 2214.670666][   T73]      do_syscall_64+0xc6/0x1e0
[ 2214.670666][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2214.670666][   T73] 
[ 2214.674329][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2214.674329][   T73]      netdev_get_by_index+0x5e/0x80
[ 2214.674329][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2214.674329][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2214.674329][   T73]      ip6_route_add+0x1c/0x140
[ 2214.674329][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2214.674329][   T73]      addrconf_add_dev+0xe2/0x170
[ 2214.674329][   T73]      inet6_addr_add+0x12f/0xa40
[ 2214.674329][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2214.674329][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2214.674329][   T73]      netlink_rcv_skb+0x130/0x360
[ 2214.674329][   T73]      netlink_unicast+0x449/0x710
[ 2214.674329][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2214.674329][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2214.674329][   T73]      ___sys_sendmsg+0xee/0x170
[ 2214.674329][   T73]      __sys_sendmsg+0xcd/0x170
[ 2214.674329][   T73]      do_syscall_64+0xc6/0x1e0
[ 2214.674329][   T73] 
[ 2214.677794][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2214.677794][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2214.677794][   T73]      ipv6_find_idev+0x102/0x170
[ 2214.677794][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2214.677794][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2214.677794][   T73]      netlink_rcv_skb+0x130/0x360
[ 2214.677794][   T73]      netlink_unicast+0x449/0x710
[ 2214.677794][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2214.677794][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2214.677794][   T73]      ___sys_sendmsg+0xee/0x170
[ 2214.677794][   T73]      __sys_sendmsg+0xcd/0x170
[ 2214.677794][   T73]      do_syscall_64+0xc6/0x1e0
[ 2214.677794][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2214.677794][   T73] 
[ 2214.680546][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2214.680546][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2214.680546][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2214.680546][   T73]      ipv6_find_idev+0x102/0x170
[ 2214.680546][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2214.680546][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2214.680546][   T73]      netlink_rcv_skb+0x130/0x360
[ 2214.680546][   T73]      netlink_unicast+0x449/0x710
[ 2214.680546][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2214.680546][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2214.680546][   T73]      ___sys_sendmsg+0xee/0x170
[ 2214.680546][   T73]      __sys_sendmsg+0xcd/0x170
[ 2214.680546][   T73]      do_syscall_64+0xc6/0x1e0
[ 2214.680546][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2214.680546][   T73] 
[ 2214.683510][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2214.684876][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2214.684876][   T73]      netdev_get_by_index+0x5e/0x80
[ 2214.684876][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2214.684876][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2214.684876][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2214.684876][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2214.684876][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2214.684876][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2214.684876][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2214.684876][   T73]      addrconf_dad_begin+0x310/0x670
[ 2214.684876][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2214.684876][   T73]      process_one_work+0x84d/0x18a0
[ 2214.684876][   T73]      worker_thread+0x587/0xd30
[ 2214.684876][   T73]      kthread+0x28a/0x350
[ 2214.684876][   T73]      ret_from_fork+0x31/0x70
[ 2214.684876][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2214.684876][   T73] 
[ 2214.687879][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2214.687879][   T73]      netdev_get_by_index+0x5e/0x80
[ 2214.687879][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2214.687879][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2214.687879][   T73]      ip6_route_add+0x1c/0x140
[ 2214.687879][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2214.687879][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2214.687879][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2214.687879][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2214.687879][   T73]      netlink_rcv_skb+0x130/0x360
[ 2214.687879][   T73]      netlink_unicast+0x449/0x710
[ 2214.687879][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2214.687879][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2214.687879][   T73]      ___sys_sendmsg+0xee/0x170
[ 2214.687879][   T73]      __sys_sendmsg+0xcd/0x170
[ 2214.687879][   T73]      do_syscall_64+0xc6/0x1e0
[ 2214.687879][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2214.687879][   T73] 
[ 2214.691072][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2214.691072][   T73]      netdev_get_by_index+0x5e/0x80
[ 2214.691072][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2214.691072][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2214.691072][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2214.691072][   T73]      ipv6_add_addr+0x411/0x2000
[ 2214.691072][   T73]      inet6_addr_add+0x30e/0xa40
[ 2214.691072][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2214.691072][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2214.691072][   T73]      netlink_rcv_skb+0x130/0x360
[ 2214.691072][   T73]      netlink_unicast+0x449/0x710
[ 2214.691072][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2214.691072][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2214.691072][   T73]      ___sys_sendmsg+0xee/0x170
[ 2214.691072][   T73]      __sys_sendmsg+0xcd/0x170
[ 2214.691072][   T73]      do_syscall_64+0xc6/0x1e0
[ 2214.691072][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2214.691072][   T73] 
[ 2214.694688][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2214.694688][   T73]      netdev_get_by_index+0x5e/0x80
[ 2214.694688][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2214.694688][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2214.694688][   T73]      ip6_route_add+0x1c/0x140
[ 2214.694688][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2214.694688][   T73]      addrconf_add_dev+0xe2/0x170
[ 2214.694688][   T73]      inet6_addr_add+0x12f/0xa40
[ 2214.694688][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2214.694688][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2214.694688][   T73]      netlink_rcv_skb+0x130/0x360
[ 2214.694688][   T73]      netlink_unicast+0x449/0x710
[ 2214.694688][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2214.694688][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2214.694688][   T73]      ___sys_sendmsg+0xee/0x170
[ 2214.694688][   T73]      __sys_sendmsg+0xcd/0x170
[ 2214.694688][   T73]      do_syscall_64+0xc6/0x1e0
[ 2214.694688][   T73] 
[ 2214.698220][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2214.698220][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2214.698220][   T73]      ipv6_find_idev+0x102/0x170
[ 2214.698220][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2214.698220][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2214.698220][   T73]      netlink_rcv_skb+0x130/0x360
[ 2214.698220][   T73]      netlink_unicast+0x449/0x710
[ 2214.698220][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2214.698220][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2214.698220][   T73]      ___sys_sendmsg+0xee/0x170
[ 2214.698220][   T73]      __sys_sendmsg+0xcd/0x170
[ 2214.698220][   T73]      do_syscall_64+0xc6/0x1e0
[ 2214.698220][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2214.698220][   T73] 
[ 2214.701003][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2214.701003][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2214.701003][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2214.701003][   T73]      ipv6_find_idev+0x102/0x170
[ 2214.701003][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2214.701003][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2214.701003][   T73]      netlink_rcv_skb+0x130/0x360
[ 2214.701003][   T73]      netlink_unicast+0x449/0x710
[ 2214.701003][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2214.701003][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2214.701003][   T73]      ___sys_sendmsg+0xee/0x170
[ 2214.701003][   T73]      __sys_sendmsg+0xcd/0x170
[ 2214.701003][   T73]      do_syscall_64+0xc6/0x1e0
[ 2214.701003][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2214.701003][   T73] 
[ 2224.959830][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2224.960278][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2224.960278][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2224.960278][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2224.960278][   T73]      fib6_nh_init+0xa22/0x1580
[ 2224.960278][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2224.960278][   T73]      ip6_route_add+0x1c/0x140
[ 2224.960278][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2224.960278][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2224.960278][   T73]      netlink_rcv_skb+0x130/0x360
[ 2224.960278][   T73]      netlink_unicast+0x449/0x710
[ 2224.960278][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2224.960278][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2224.960278][   T73]      ___sys_sendmsg+0xee/0x170
[ 2224.960278][   T73]      __sys_sendmsg+0xcd/0x170
[ 2224.960278][   T73]      do_syscall_64+0xc6/0x1e0
[ 2224.960278][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2224.960278][   T73] 
[ 2224.962187][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2224.962187][   T73]      dst_init+0x84/0x4a0
[ 2224.962187][   T73]      dst_alloc+0x97/0x150
[ 2224.962187][   T73]      ip6_dst_alloc+0x23/0x90
[ 2224.962187][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2224.962187][   T73]      ip6_pol_route+0x56f/0x840
[ 2224.962187][   T73]      fib6_rule_lookup+0x456/0x630
[ 2224.962187][   T73]      ip6_route_input+0x59c/0xa50
[ 2224.962187][   T73]      ipv6_rcv+0x397/0x810
[ 2224.962187][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2224.962187][   T73]      process_backlog+0x101/0x620
[ 2224.962187][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2224.962187][   T73]      net_rx_action+0x495/0xbe0
[ 2224.962187][   T73]      __do_softirq+0x1b5/0x7f6
[ 2224.962187][   T73] 
[ 2224.963811][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2224.963811][   T73]      netdev_get_by_index+0x5e/0x80
[ 2224.963811][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2224.963811][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2224.963811][   T73]      ip6_route_add+0x1c/0x140
[ 2224.963811][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2224.963811][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2224.963811][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2224.963811][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2224.963811][   T73]      netlink_rcv_skb+0x130/0x360
[ 2224.963811][   T73]      netlink_unicast+0x449/0x710
[ 2224.963811][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2224.963811][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2224.963811][   T73]      ___sys_sendmsg+0xee/0x170
[ 2224.963811][   T73]      __sys_sendmsg+0xcd/0x170
[ 2224.963811][   T73]      do_syscall_64+0xc6/0x1e0
[ 2224.963811][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2224.963811][   T73] 
[ 2224.965820][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2224.965820][   T73]      netdev_get_by_index+0x5e/0x80
[ 2224.965820][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2224.965820][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2224.965820][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2224.965820][   T73]      ipv6_add_addr+0x411/0x2000
[ 2224.965820][   T73]      inet6_addr_add+0x30e/0xa40
[ 2224.965820][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2224.965820][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2224.965820][   T73]      netlink_rcv_skb+0x130/0x360
[ 2224.965820][   T73]      netlink_unicast+0x449/0x710
[ 2224.965820][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2224.965820][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2224.965820][   T73]      ___sys_sendmsg+0xee/0x170
[ 2224.965820][   T73]      __sys_sendmsg+0xcd/0x170
[ 2224.965820][   T73]      do_syscall_64+0xc6/0x1e0
[ 2224.965820][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2224.965820][   T73] 
[ 2224.967803][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2224.967803][   T73]      netdev_get_by_index+0x5e/0x80
[ 2224.967803][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2224.967803][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2224.967803][   T73]      ip6_route_add+0x1c/0x140
[ 2224.967803][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2224.967803][   T73]      addrconf_add_dev+0xe2/0x170
[ 2224.967803][   T73]      inet6_addr_add+0x12f/0xa40
[ 2224.967803][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2224.967803][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2224.967803][   T73]      netlink_rcv_skb+0x130/0x360
[ 2224.967803][   T73]      netlink_unicast+0x449/0x710
[ 2224.967803][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2224.967803][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2224.967803][   T73]      ___sys_sendmsg+0xee/0x170
[ 2224.967803][   T73]      __sys_sendmsg+0xcd/0x170
[ 2224.967803][   T73]      do_syscall_64+0xc6/0x1e0
[ 2224.967803][   T73] 
[ 2224.969752][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2224.969752][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2224.969752][   T73]      ipv6_find_idev+0x102/0x170
[ 2224.969752][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2224.969752][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2224.969752][   T73]      netlink_rcv_skb+0x130/0x360
[ 2224.969752][   T73]      netlink_unicast+0x449/0x710
[ 2224.969752][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2224.969752][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2224.969752][   T73]      ___sys_sendmsg+0xee/0x170
[ 2224.969752][   T73]      __sys_sendmsg+0xcd/0x170
[ 2224.969752][   T73]      do_syscall_64+0xc6/0x1e0
[ 2224.969752][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2224.969752][   T73] 
[ 2224.971281][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2224.971281][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2224.971281][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2224.971281][   T73]      ipv6_find_idev+0x102/0x170
[ 2224.971281][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2224.971281][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2224.971281][   T73]      netlink_rcv_skb+0x130/0x360
[ 2224.971281][   T73]      netlink_unicast+0x449/0x710
[ 2224.971281][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2224.971281][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2224.971281][   T73]      ___sys_sendmsg+0xee/0x170
[ 2224.971281][   T73]      __sys_sendmsg+0xcd/0x170
[ 2224.971281][   T73]      do_syscall_64+0xc6/0x1e0
[ 2224.971281][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2224.971281][   T73] 
[ 2224.972964][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2224.973250][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2224.973250][   T73]      netdev_get_by_index+0x5e/0x80
[ 2224.973250][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2224.973250][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2224.973250][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2224.973250][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2224.973250][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2224.973250][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2224.973250][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2224.973250][   T73]      addrconf_dad_begin+0x310/0x670
[ 2224.973250][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2224.973250][   T73]      process_one_work+0x84d/0x18a0
[ 2224.973250][   T73]      worker_thread+0x587/0xd30
[ 2224.973250][   T73]      kthread+0x28a/0x350
[ 2224.973250][   T73]      ret_from_fork+0x31/0x70
[ 2224.973250][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2224.973250][   T73] 
[ 2224.975176][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2224.975176][   T73]      netdev_get_by_index+0x5e/0x80
[ 2224.975176][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2224.975176][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2224.975176][   T73]      ip6_route_add+0x1c/0x140
[ 2224.975176][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2224.975176][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2224.975176][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2224.975176][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2224.975176][   T73]      netlink_rcv_skb+0x130/0x360
[ 2224.975176][   T73]      netlink_unicast+0x449/0x710
[ 2224.975176][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2224.975176][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2224.975176][   T73]      ___sys_sendmsg+0xee/0x170
[ 2224.975176][   T73]      __sys_sendmsg+0xcd/0x170
[ 2224.975176][   T73]      do_syscall_64+0xc6/0x1e0
[ 2224.975176][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2224.975176][   T73] 
[ 2224.977180][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2224.977180][   T73]      netdev_get_by_index+0x5e/0x80
[ 2224.977180][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2224.977180][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2224.977180][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2224.977180][   T73]      ipv6_add_addr+0x411/0x2000
[ 2224.977180][   T73]      inet6_addr_add+0x30e/0xa40
[ 2224.977180][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2224.977180][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2224.977180][   T73]      netlink_rcv_skb+0x130/0x360
[ 2224.977180][   T73]      netlink_unicast+0x449/0x710
[ 2224.977180][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2224.977180][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2224.977180][   T73]      ___sys_sendmsg+0xee/0x170
[ 2224.977180][   T73]      __sys_sendmsg+0xcd/0x170
[ 2224.977180][   T73]      do_syscall_64+0xc6/0x1e0
[ 2224.977180][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2224.977180][   T73] 
[ 2224.979183][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2224.979183][   T73]      netdev_get_by_index+0x5e/0x80
[ 2224.979183][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2224.979183][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2224.979183][   T73]      ip6_route_add+0x1c/0x140
[ 2224.979183][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2224.979183][   T73]      addrconf_add_dev+0xe2/0x170
[ 2224.979183][   T73]      inet6_addr_add+0x12f/0xa40
[ 2224.979183][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2224.979183][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2224.979183][   T73]      netlink_rcv_skb+0x130/0x360
[ 2224.979183][   T73]      netlink_unicast+0x449/0x710
[ 2224.979183][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2224.979183][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2224.979183][   T73]      ___sys_sendmsg+0xee/0x170
[ 2224.979183][   T73]      __sys_sendmsg+0xcd/0x170
[ 2224.979183][   T73]      do_syscall_64+0xc6/0x1e0
[ 2224.979183][   T73] 
[ 2224.981136][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2224.981136][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2224.981136][   T73]      ipv6_find_idev+0x102/0x170
[ 2224.981136][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2224.981136][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2224.981136][   T73]      netlink_rcv_skb+0x130/0x360
[ 2224.981136][   T73]      netlink_unicast+0x449/0x710
[ 2224.981136][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2224.981136][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2224.981136][   T73]      ___sys_sendmsg+0xee/0x170
[ 2224.981136][   T73]      __sys_sendmsg+0xcd/0x170
[ 2224.981136][   T73]      do_syscall_64+0xc6/0x1e0
[ 2224.981136][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2224.981136][   T73] 
[ 2224.982694][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2224.982694][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2224.982694][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2224.982694][   T73]      ipv6_find_idev+0x102/0x170
[ 2224.982694][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2224.982694][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2224.982694][   T73]      netlink_rcv_skb+0x130/0x360
[ 2224.982694][   T73]      netlink_unicast+0x449/0x710
[ 2224.982694][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2224.982694][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2224.982694][   T73]      ___sys_sendmsg+0xee/0x170
[ 2224.982694][   T73]      __sys_sendmsg+0xcd/0x170
[ 2224.982694][   T73]      do_syscall_64+0xc6/0x1e0
[ 2224.982694][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2224.982694][   T73] 
[ 2224.984390][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2224.984669][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2224.984669][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2224.984669][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2224.984669][   T73]      fib6_nh_init+0xa22/0x1580
[ 2224.984669][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2224.984669][   T73]      ip6_route_add+0x1c/0x140
[ 2224.984669][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2224.984669][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2224.984669][   T73]      netlink_rcv_skb+0x130/0x360
[ 2224.984669][   T73]      netlink_unicast+0x449/0x710
[ 2224.984669][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2224.984669][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2224.984669][   T73]      ___sys_sendmsg+0xee/0x170
[ 2224.984669][   T73]      __sys_sendmsg+0xcd/0x170
[ 2224.984669][   T73]      do_syscall_64+0xc6/0x1e0
[ 2224.984669][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2224.984669][   T73] 
[ 2224.986718][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2224.986718][   T73]      dst_init+0x84/0x4a0
[ 2224.986718][   T73]      dst_alloc+0x97/0x150
[ 2224.986718][   T73]      ip6_dst_alloc+0x23/0x90
[ 2224.986718][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2224.986718][   T73]      ip6_pol_route+0x56f/0x840
[ 2224.986718][   T73]      fib6_rule_lookup+0x456/0x630
[ 2224.986718][   T73]      ip6_route_input+0x59c/0xa50
[ 2224.986718][   T73]      ipv6_rcv+0x397/0x810
[ 2224.986718][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2224.986718][   T73]      process_backlog+0x101/0x620
[ 2224.986718][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2224.986718][   T73]      net_rx_action+0x495/0xbe0
[ 2224.986718][   T73]      __do_softirq+0x1b5/0x7f6
[ 2224.986718][   T73] 
[ 2224.988534][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2224.988534][   T73]      netdev_get_by_index+0x5e/0x80
[ 2224.988534][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2224.988534][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2224.988534][   T73]      ip6_route_add+0x1c/0x140
[ 2224.988534][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2224.988534][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2224.988534][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2224.988534][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2224.988534][   T73]      netlink_rcv_skb+0x130/0x360
[ 2224.988534][   T73]      netlink_unicast+0x449/0x710
[ 2224.988534][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2224.988534][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2224.988534][   T73]      ___sys_sendmsg+0xee/0x170
[ 2224.988534][   T73]      __sys_sendmsg+0xcd/0x170
[ 2224.988534][   T73]      do_syscall_64+0xc6/0x1e0
[ 2224.988534][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2224.988534][   T73] 
[ 2224.990755][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2224.990755][   T73]      netdev_get_by_index+0x5e/0x80
[ 2224.990755][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2224.990755][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2224.990755][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2224.990755][   T73]      ipv6_add_addr+0x411/0x2000
[ 2224.990755][   T73]      inet6_addr_add+0x30e/0xa40
[ 2224.990755][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2224.990755][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2224.990755][   T73]      netlink_rcv_skb+0x130/0x360
[ 2224.990755][   T73]      netlink_unicast+0x449/0x710
[ 2224.990755][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2224.990755][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2224.990755][   T73]      ___sys_sendmsg+0xee/0x170
[ 2224.990755][   T73]      __sys_sendmsg+0xcd/0x170
[ 2224.990755][   T73]      do_syscall_64+0xc6/0x1e0
[ 2224.990755][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2224.990755][   T73] 
[ 2224.992994][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2224.992994][   T73]      netdev_get_by_index+0x5e/0x80
[ 2224.992994][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2224.992994][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2224.992994][   T73]      ip6_route_add+0x1c/0x140
[ 2224.992994][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2224.992994][   T73]      addrconf_add_dev+0xe2/0x170
[ 2224.992994][   T73]      inet6_addr_add+0x12f/0xa40
[ 2224.992994][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2224.992994][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2224.992994][   T73]      netlink_rcv_skb+0x130/0x360
[ 2224.992994][   T73]      netlink_unicast+0x449/0x710
[ 2224.992994][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2224.992994][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2224.992994][   T73]      ___sys_sendmsg+0xee/0x170
[ 2224.992994][   T73]      __sys_sendmsg+0xcd/0x170
[ 2224.992994][   T73]      do_syscall_64+0xc6/0x1e0
[ 2224.992994][   T73] 
[ 2224.995171][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2224.995171][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2224.995171][   T73]      ipv6_find_idev+0x102/0x170
[ 2224.995171][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2224.995171][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2224.995171][   T73]      netlink_rcv_skb+0x130/0x360
[ 2224.995171][   T73]      netlink_unicast+0x449/0x710
[ 2224.995171][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2224.995171][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2224.995171][   T73]      ___sys_sendmsg+0xee/0x170
[ 2224.995171][   T73]      __sys_sendmsg+0xcd/0x170
[ 2224.995171][   T73]      do_syscall_64+0xc6/0x1e0
[ 2224.995171][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2224.995171][   T73] 
[ 2224.996873][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2224.996873][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2224.996873][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2224.996873][   T73]      ipv6_find_idev+0x102/0x170
[ 2224.996873][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2224.996873][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2224.996873][   T73]      netlink_rcv_skb+0x130/0x360
[ 2224.996873][   T73]      netlink_unicast+0x449/0x710
[ 2224.996873][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2224.996873][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2224.996873][   T73]      ___sys_sendmsg+0xee/0x170
[ 2224.996873][   T73]      __sys_sendmsg+0xcd/0x170
[ 2224.996873][   T73]      do_syscall_64+0xc6/0x1e0
[ 2224.996873][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2224.996873][   T73] 
[ 2224.998728][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2224.999068][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2224.999068][   T73]      netdev_get_by_index+0x5e/0x80
[ 2224.999068][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2224.999068][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2224.999068][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2224.999068][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2224.999068][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2224.999068][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2224.999068][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2224.999068][   T73]      addrconf_dad_begin+0x310/0x670
[ 2224.999068][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2224.999068][   T73]      process_one_work+0x84d/0x18a0
[ 2224.999068][   T73]      worker_thread+0x587/0xd30
[ 2224.999068][   T73]      kthread+0x28a/0x350
[ 2224.999068][   T73]      ret_from_fork+0x31/0x70
[ 2224.999068][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2224.999068][   T73] 
[ 2225.001143][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2225.001143][   T73]      netdev_get_by_index+0x5e/0x80
[ 2225.001143][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2225.001143][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2225.001143][   T73]      ip6_route_add+0x1c/0x140
[ 2225.001143][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2225.001143][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2225.001143][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2225.001143][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2225.001143][   T73]      netlink_rcv_skb+0x130/0x360
[ 2225.001143][   T73]      netlink_unicast+0x449/0x710
[ 2225.001143][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2225.001143][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2225.001143][   T73]      ___sys_sendmsg+0xee/0x170
[ 2225.001143][   T73]      __sys_sendmsg+0xcd/0x170
[ 2225.001143][   T73]      do_syscall_64+0xc6/0x1e0
[ 2225.001143][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2225.001143][   T73] 
[ 2225.003368][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2225.003368][   T73]      netdev_get_by_index+0x5e/0x80
[ 2225.003368][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2225.003368][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2225.003368][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2225.003368][   T73]      ipv6_add_addr+0x411/0x2000
[ 2225.003368][   T73]      inet6_addr_add+0x30e/0xa40
[ 2225.003368][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2225.003368][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2225.003368][   T73]      netlink_rcv_skb+0x130/0x360
[ 2225.003368][   T73]      netlink_unicast+0x449/0x710
[ 2225.003368][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2225.003368][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2225.003368][   T73]      ___sys_sendmsg+0xee/0x170
[ 2225.003368][   T73]      __sys_sendmsg+0xcd/0x170
[ 2225.003368][   T73]      do_syscall_64+0xc6/0x1e0
[ 2225.003368][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2225.003368][   T73] 
[ 2225.006541][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2225.006541][   T73]      netdev_get_by_index+0x5e/0x80
[ 2225.006541][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2225.006541][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2225.006541][   T73]      ip6_route_add+0x1c/0x140
[ 2225.006541][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2225.006541][   T73]      addrconf_add_dev+0xe2/0x170
[ 2225.006541][   T73]      inet6_addr_add+0x12f/0xa40
[ 2225.006541][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2225.006541][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2225.006541][   T73]      netlink_rcv_skb+0x130/0x360
[ 2225.006541][   T73]      netlink_unicast+0x449/0x710
[ 2225.006541][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2225.006541][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2225.006541][   T73]      ___sys_sendmsg+0xee/0x170
[ 2225.006541][   T73]      __sys_sendmsg+0xcd/0x170
[ 2225.006541][   T73]      do_syscall_64+0xc6/0x1e0
[ 2225.006541][   T73] 
[ 2225.008728][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2225.008728][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2225.008728][   T73]      ipv6_find_idev+0x102/0x170
[ 2225.008728][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2225.008728][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2225.008728][   T73]      netlink_rcv_skb+0x130/0x360
[ 2225.008728][   T73]      netlink_unicast+0x449/0x710
[ 2225.008728][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2225.008728][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2225.008728][   T73]      ___sys_sendmsg+0xee/0x170
[ 2225.008728][   T73]      __sys_sendmsg+0xcd/0x170
[ 2225.008728][   T73]      do_syscall_64+0xc6/0x1e0
[ 2225.008728][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2225.008728][   T73] 
[ 2225.010493][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2225.010493][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2225.010493][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2225.010493][   T73]      ipv6_find_idev+0x102/0x170
[ 2225.010493][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2225.010493][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2225.010493][   T73]      netlink_rcv_skb+0x130/0x360
[ 2225.010493][   T73]      netlink_unicast+0x449/0x710
[ 2225.010493][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2225.010493][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2225.010493][   T73]      ___sys_sendmsg+0xee/0x170
[ 2225.010493][   T73]      __sys_sendmsg+0xcd/0x170
[ 2225.010493][   T73]      do_syscall_64+0xc6/0x1e0
[ 2225.010493][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2225.010493][   T73] 
[ 2235.055751][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2235.056181][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2235.056181][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2235.056181][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2235.056181][   T73]      fib6_nh_init+0xa22/0x1580
[ 2235.056181][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2235.056181][   T73]      ip6_route_add+0x1c/0x140
[ 2235.056181][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2235.056181][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2235.056181][   T73]      netlink_rcv_skb+0x130/0x360
[ 2235.056181][   T73]      netlink_unicast+0x449/0x710
[ 2235.056181][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2235.056181][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2235.056181][   T73]      ___sys_sendmsg+0xee/0x170
[ 2235.056181][   T73]      __sys_sendmsg+0xcd/0x170
[ 2235.056181][   T73]      do_syscall_64+0xc6/0x1e0
[ 2235.056181][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2235.056181][   T73] 
[ 2235.058086][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2235.058086][   T73]      dst_init+0x84/0x4a0
[ 2235.058086][   T73]      dst_alloc+0x97/0x150
[ 2235.058086][   T73]      ip6_dst_alloc+0x23/0x90
[ 2235.058086][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2235.058086][   T73]      ip6_pol_route+0x56f/0x840
[ 2235.058086][   T73]      fib6_rule_lookup+0x456/0x630
[ 2235.058086][   T73]      ip6_route_input+0x59c/0xa50
[ 2235.058086][   T73]      ipv6_rcv+0x397/0x810
[ 2235.058086][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2235.058086][   T73]      process_backlog+0x101/0x620
[ 2235.058086][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2235.058086][   T73]      net_rx_action+0x495/0xbe0
[ 2235.058086][   T73]      __do_softirq+0x1b5/0x7f6
[ 2235.058086][   T73] 
[ 2235.059730][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2235.059730][   T73]      netdev_get_by_index+0x5e/0x80
[ 2235.059730][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2235.059730][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2235.059730][   T73]      ip6_route_add+0x1c/0x140
[ 2235.059730][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2235.059730][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2235.059730][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2235.059730][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2235.059730][   T73]      netlink_rcv_skb+0x130/0x360
[ 2235.059730][   T73]      netlink_unicast+0x449/0x710
[ 2235.059730][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2235.059730][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2235.059730][   T73]      ___sys_sendmsg+0xee/0x170
[ 2235.059730][   T73]      __sys_sendmsg+0xcd/0x170
[ 2235.059730][   T73]      do_syscall_64+0xc6/0x1e0
[ 2235.059730][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2235.059730][   T73] 
[ 2235.061727][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2235.061727][   T73]      netdev_get_by_index+0x5e/0x80
[ 2235.061727][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2235.061727][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2235.061727][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2235.061727][   T73]      ipv6_add_addr+0x411/0x2000
[ 2235.061727][   T73]      inet6_addr_add+0x30e/0xa40
[ 2235.061727][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2235.061727][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2235.061727][   T73]      netlink_rcv_skb+0x130/0x360
[ 2235.061727][   T73]      netlink_unicast+0x449/0x710
[ 2235.061727][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2235.061727][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2235.061727][   T73]      ___sys_sendmsg+0xee/0x170
[ 2235.061727][   T73]      __sys_sendmsg+0xcd/0x170
[ 2235.061727][   T73]      do_syscall_64+0xc6/0x1e0
[ 2235.061727][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2235.061727][   T73] 
[ 2235.064080][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2235.064080][   T73]      netdev_get_by_index+0x5e/0x80
[ 2235.064080][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2235.064080][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2235.064080][   T73]      ip6_route_add+0x1c/0x140
[ 2235.064080][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2235.064080][   T73]      addrconf_add_dev+0xe2/0x170
[ 2235.064080][   T73]      inet6_addr_add+0x12f/0xa40
[ 2235.064080][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2235.064080][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2235.064080][   T73]      netlink_rcv_skb+0x130/0x360
[ 2235.064080][   T73]      netlink_unicast+0x449/0x710
[ 2235.064080][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2235.064080][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2235.064080][   T73]      ___sys_sendmsg+0xee/0x170
[ 2235.064080][   T73]      __sys_sendmsg+0xcd/0x170
[ 2235.064080][   T73]      do_syscall_64+0xc6/0x1e0
[ 2235.064080][   T73] 
[ 2235.066042][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2235.066042][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2235.066042][   T73]      ipv6_find_idev+0x102/0x170
[ 2235.066042][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2235.066042][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2235.066042][   T73]      netlink_rcv_skb+0x130/0x360
[ 2235.066042][   T73]      netlink_unicast+0x449/0x710
[ 2235.066042][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2235.066042][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2235.066042][   T73]      ___sys_sendmsg+0xee/0x170
[ 2235.066042][   T73]      __sys_sendmsg+0xcd/0x170
[ 2235.066042][   T73]      do_syscall_64+0xc6/0x1e0
[ 2235.066042][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2235.066042][   T73] 
[ 2235.067574][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2235.067574][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2235.067574][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2235.067574][   T73]      ipv6_find_idev+0x102/0x170
[ 2235.067574][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2235.067574][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2235.067574][   T73]      netlink_rcv_skb+0x130/0x360
[ 2235.067574][   T73]      netlink_unicast+0x449/0x710
[ 2235.067574][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2235.067574][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2235.067574][   T73]      ___sys_sendmsg+0xee/0x170
[ 2235.067574][   T73]      __sys_sendmsg+0xcd/0x170
[ 2235.067574][   T73]      do_syscall_64+0xc6/0x1e0
[ 2235.067574][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2235.067574][   T73] 
[ 2235.069269][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2235.069553][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2235.069553][   T73]      netdev_get_by_index+0x5e/0x80
[ 2235.069553][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2235.069553][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2235.069553][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2235.069553][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2235.069553][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2235.069553][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2235.069553][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2235.069553][   T73]      addrconf_dad_begin+0x310/0x670
[ 2235.069553][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2235.069553][   T73]      process_one_work+0x84d/0x18a0
[ 2235.069553][   T73]      worker_thread+0x587/0xd30
[ 2235.069553][   T73]      kthread+0x28a/0x350
[ 2235.069553][   T73]      ret_from_fork+0x31/0x70
[ 2235.069553][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2235.069553][   T73] 
[ 2235.071454][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2235.071454][   T73]      netdev_get_by_index+0x5e/0x80
[ 2235.071454][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2235.071454][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2235.071454][   T73]      ip6_route_add+0x1c/0x140
[ 2235.071454][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2235.071454][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2235.071454][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2235.071454][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2235.071454][   T73]      netlink_rcv_skb+0x130/0x360
[ 2235.071454][   T73]      netlink_unicast+0x449/0x710
[ 2235.071454][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2235.071454][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2235.071454][   T73]      ___sys_sendmsg+0xee/0x170
[ 2235.071454][   T73]      __sys_sendmsg+0xcd/0x170
[ 2235.071454][   T73]      do_syscall_64+0xc6/0x1e0
[ 2235.071454][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2235.071454][   T73] 
[ 2235.073453][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2235.073453][   T73]      netdev_get_by_index+0x5e/0x80
[ 2235.073453][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2235.073453][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2235.073453][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2235.073453][   T73]      ipv6_add_addr+0x411/0x2000
[ 2235.073453][   T73]      inet6_addr_add+0x30e/0xa40
[ 2235.073453][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2235.073453][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2235.073453][   T73]      netlink_rcv_skb+0x130/0x360
[ 2235.073453][   T73]      netlink_unicast+0x449/0x710
[ 2235.073453][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2235.073453][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2235.073453][   T73]      ___sys_sendmsg+0xee/0x170
[ 2235.073453][   T73]      __sys_sendmsg+0xcd/0x170
[ 2235.073453][   T73]      do_syscall_64+0xc6/0x1e0
[ 2235.073453][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2235.073453][   T73] 
[ 2235.075479][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2235.075479][   T73]      netdev_get_by_index+0x5e/0x80
[ 2235.075479][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2235.075479][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2235.075479][   T73]      ip6_route_add+0x1c/0x140
[ 2235.075479][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2235.075479][   T73]      addrconf_add_dev+0xe2/0x170
[ 2235.075479][   T73]      inet6_addr_add+0x12f/0xa40
[ 2235.075479][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2235.075479][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2235.075479][   T73]      netlink_rcv_skb+0x130/0x360
[ 2235.075479][   T73]      netlink_unicast+0x449/0x710
[ 2235.075479][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2235.075479][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2235.075479][   T73]      ___sys_sendmsg+0xee/0x170
[ 2235.075479][   T73]      __sys_sendmsg+0xcd/0x170
[ 2235.075479][   T73]      do_syscall_64+0xc6/0x1e0
[ 2235.075479][   T73] 
[ 2235.077434][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2235.077434][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2235.077434][   T73]      ipv6_find_idev+0x102/0x170
[ 2235.077434][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2235.077434][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2235.077434][   T73]      netlink_rcv_skb+0x130/0x360
[ 2235.077434][   T73]      netlink_unicast+0x449/0x710
[ 2235.077434][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2235.077434][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2235.077434][   T73]      ___sys_sendmsg+0xee/0x170
[ 2235.077434][   T73]      __sys_sendmsg+0xcd/0x170
[ 2235.077434][   T73]      do_syscall_64+0xc6/0x1e0
[ 2235.077434][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2235.077434][   T73] 
[ 2235.078956][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2235.078956][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2235.078956][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2235.078956][   T73]      ipv6_find_idev+0x102/0x170
[ 2235.078956][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2235.078956][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2235.078956][   T73]      netlink_rcv_skb+0x130/0x360
[ 2235.078956][   T73]      netlink_unicast+0x449/0x710
[ 2235.078956][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2235.078956][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2235.078956][   T73]      ___sys_sendmsg+0xee/0x170
[ 2235.078956][   T73]      __sys_sendmsg+0xcd/0x170
[ 2235.078956][   T73]      do_syscall_64+0xc6/0x1e0
[ 2235.078956][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2235.078956][   T73] 
[ 2235.080618][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2235.080895][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2235.080895][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2235.080895][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2235.080895][   T73]      fib6_nh_init+0xa22/0x1580
[ 2235.080895][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2235.080895][   T73]      ip6_route_add+0x1c/0x140
[ 2235.080895][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2235.080895][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2235.080895][   T73]      netlink_rcv_skb+0x130/0x360
[ 2235.080895][   T73]      netlink_unicast+0x449/0x710
[ 2235.080895][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2235.080895][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2235.080895][   T73]      ___sys_sendmsg+0xee/0x170
[ 2235.080895][   T73]      __sys_sendmsg+0xcd/0x170
[ 2235.080895][   T73]      do_syscall_64+0xc6/0x1e0
[ 2235.080895][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2235.080895][   T73] 
[ 2235.082950][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2235.082950][   T73]      dst_init+0x84/0x4a0
[ 2235.082950][   T73]      dst_alloc+0x97/0x150
[ 2235.082950][   T73]      ip6_dst_alloc+0x23/0x90
[ 2235.082950][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2235.082950][   T73]      ip6_pol_route+0x56f/0x840
[ 2235.082950][   T73]      fib6_rule_lookup+0x456/0x630
[ 2235.082950][   T73]      ip6_route_input+0x59c/0xa50
[ 2235.082950][   T73]      ipv6_rcv+0x397/0x810
[ 2235.082950][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2235.082950][   T73]      process_backlog+0x101/0x620
[ 2235.082950][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2235.082950][   T73]      net_rx_action+0x495/0xbe0
[ 2235.082950][   T73]      __do_softirq+0x1b5/0x7f6
[ 2235.082950][   T73] 
[ 2235.084774][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2235.084774][   T73]      netdev_get_by_index+0x5e/0x80
[ 2235.084774][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2235.084774][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2235.084774][   T73]      ip6_route_add+0x1c/0x140
[ 2235.084774][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2235.084774][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2235.084774][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2235.084774][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2235.084774][   T73]      netlink_rcv_skb+0x130/0x360
[ 2235.084774][   T73]      netlink_unicast+0x449/0x710
[ 2235.084774][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2235.084774][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2235.084774][   T73]      ___sys_sendmsg+0xee/0x170
[ 2235.084774][   T73]      __sys_sendmsg+0xcd/0x170
[ 2235.084774][   T73]      do_syscall_64+0xc6/0x1e0
[ 2235.084774][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2235.084774][   T73] 
[ 2235.087015][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2235.087015][   T73]      netdev_get_by_index+0x5e/0x80
[ 2235.087015][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2235.087015][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2235.087015][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2235.087015][   T73]      ipv6_add_addr+0x411/0x2000
[ 2235.087015][   T73]      inet6_addr_add+0x30e/0xa40
[ 2235.087015][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2235.087015][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2235.087015][   T73]      netlink_rcv_skb+0x130/0x360
[ 2235.087015][   T73]      netlink_unicast+0x449/0x710
[ 2235.087015][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2235.087015][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2235.087015][   T73]      ___sys_sendmsg+0xee/0x170
[ 2235.087015][   T73]      __sys_sendmsg+0xcd/0x170
[ 2235.087015][   T73]      do_syscall_64+0xc6/0x1e0
[ 2235.087015][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2235.087015][   T73] 
[ 2235.089257][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2235.089257][   T73]      netdev_get_by_index+0x5e/0x80
[ 2235.089257][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2235.089257][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2235.089257][   T73]      ip6_route_add+0x1c/0x140
[ 2235.089257][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2235.089257][   T73]      addrconf_add_dev+0xe2/0x170
[ 2235.089257][   T73]      inet6_addr_add+0x12f/0xa40
[ 2235.089257][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2235.089257][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2235.089257][   T73]      netlink_rcv_skb+0x130/0x360
[ 2235.089257][   T73]      netlink_unicast+0x449/0x710
[ 2235.089257][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2235.089257][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2235.089257][   T73]      ___sys_sendmsg+0xee/0x170
[ 2235.089257][   T73]      __sys_sendmsg+0xcd/0x170
[ 2235.089257][   T73]      do_syscall_64+0xc6/0x1e0
[ 2235.089257][   T73] 
[ 2235.091395][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2235.091395][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2235.091395][   T73]      ipv6_find_idev+0x102/0x170
[ 2235.091395][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2235.091395][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2235.091395][   T73]      netlink_rcv_skb+0x130/0x360
[ 2235.091395][   T73]      netlink_unicast+0x449/0x710
[ 2235.091395][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2235.091395][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2235.091395][   T73]      ___sys_sendmsg+0xee/0x170
[ 2235.091395][   T73]      __sys_sendmsg+0xcd/0x170
[ 2235.091395][   T73]      do_syscall_64+0xc6/0x1e0
[ 2235.091395][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2235.091395][   T73] 
[ 2235.093167][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2235.093167][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2235.093167][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2235.093167][   T73]      ipv6_find_idev+0x102/0x170
[ 2235.093167][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2235.093167][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2235.093167][   T73]      netlink_rcv_skb+0x130/0x360
[ 2235.093167][   T73]      netlink_unicast+0x449/0x710
[ 2235.093167][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2235.093167][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2235.093167][   T73]      ___sys_sendmsg+0xee/0x170
[ 2235.093167][   T73]      __sys_sendmsg+0xcd/0x170
[ 2235.093167][   T73]      do_syscall_64+0xc6/0x1e0
[ 2235.093167][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2235.093167][   T73] 
[ 2235.095203][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2235.095479][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2235.095479][   T73]      netdev_get_by_index+0x5e/0x80
[ 2235.095479][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2235.095479][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2235.095479][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2235.095479][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2235.095479][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2235.095479][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2235.095479][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2235.095479][   T73]      addrconf_dad_begin+0x310/0x670
[ 2235.095479][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2235.095479][   T73]      process_one_work+0x84d/0x18a0
[ 2235.095479][   T73]      worker_thread+0x587/0xd30
[ 2235.095479][   T73]      kthread+0x28a/0x350
[ 2235.095479][   T73]      ret_from_fork+0x31/0x70
[ 2235.095479][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2235.095479][   T73] 
[ 2235.097643][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2235.097643][   T73]      netdev_get_by_index+0x5e/0x80
[ 2235.097643][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2235.097643][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2235.097643][   T73]      ip6_route_add+0x1c/0x140
[ 2235.097643][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2235.097643][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2235.097643][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2235.097643][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2235.097643][   T73]      netlink_rcv_skb+0x130/0x360
[ 2235.097643][   T73]      netlink_unicast+0x449/0x710
[ 2235.097643][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2235.097643][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2235.097643][   T73]      ___sys_sendmsg+0xee/0x170
[ 2235.097643][   T73]      __sys_sendmsg+0xcd/0x170
[ 2235.097643][   T73]      do_syscall_64+0xc6/0x1e0
[ 2235.097643][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2235.097643][   T73] 
[ 2235.099827][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2235.099827][   T73]      netdev_get_by_index+0x5e/0x80
[ 2235.099827][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2235.099827][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2235.099827][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2235.099827][   T73]      ipv6_add_addr+0x411/0x2000
[ 2235.099827][   T73]      inet6_addr_add+0x30e/0xa40
[ 2235.099827][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2235.099827][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2235.099827][   T73]      netlink_rcv_skb+0x130/0x360
[ 2235.099827][   T73]      netlink_unicast+0x449/0x710
[ 2235.099827][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2235.099827][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2235.099827][   T73]      ___sys_sendmsg+0xee/0x170
[ 2235.099827][   T73]      __sys_sendmsg+0xcd/0x170
[ 2235.099827][   T73]      do_syscall_64+0xc6/0x1e0
[ 2235.099827][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2235.099827][   T73] 
[ 2235.102117][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2235.102117][   T73]      netdev_get_by_index+0x5e/0x80
[ 2235.102117][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2235.102117][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2235.102117][   T73]      ip6_route_add+0x1c/0x140
[ 2235.102117][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2235.102117][   T73]      addrconf_add_dev+0xe2/0x170
[ 2235.102117][   T73]      inet6_addr_add+0x12f/0xa40
[ 2235.102117][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2235.102117][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2235.102117][   T73]      netlink_rcv_skb+0x130/0x360
[ 2235.102117][   T73]      netlink_unicast+0x449/0x710
[ 2235.102117][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2235.102117][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2235.102117][   T73]      ___sys_sendmsg+0xee/0x170
[ 2235.102117][   T73]      __sys_sendmsg+0xcd/0x170
[ 2235.102117][   T73]      do_syscall_64+0xc6/0x1e0
[ 2235.102117][   T73] 
[ 2235.104316][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2235.104316][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2235.104316][   T73]      ipv6_find_idev+0x102/0x170
[ 2235.104316][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2235.104316][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2235.104316][   T73]      netlink_rcv_skb+0x130/0x360
[ 2235.104316][   T73]      netlink_unicast+0x449/0x710
[ 2235.104316][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2235.104316][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2235.104316][   T73]      ___sys_sendmsg+0xee/0x170
[ 2235.104316][   T73]      __sys_sendmsg+0xcd/0x170
[ 2235.104316][   T73]      do_syscall_64+0xc6/0x1e0
[ 2235.104316][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2235.104316][   T73] 
[ 2235.106022][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2235.106022][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2235.106022][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2235.106022][   T73]      ipv6_find_idev+0x102/0x170
[ 2235.106022][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2235.106022][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2235.106022][   T73]      netlink_rcv_skb+0x130/0x360
[ 2235.106022][   T73]      netlink_unicast+0x449/0x710
[ 2235.106022][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2235.106022][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2235.106022][   T73]      ___sys_sendmsg+0xee/0x170
[ 2235.106022][   T73]      __sys_sendmsg+0xcd/0x170
[ 2235.106022][   T73]      do_syscall_64+0xc6/0x1e0
[ 2235.106022][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2235.106022][   T73] 
[ 2245.215764][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2245.216337][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2245.216337][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2245.216337][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2245.216337][   T73]      fib6_nh_init+0xa22/0x1580
[ 2245.216337][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2245.216337][   T73]      ip6_route_add+0x1c/0x140
[ 2245.216337][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2245.216337][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2245.216337][   T73]      netlink_rcv_skb+0x130/0x360
[ 2245.216337][   T73]      netlink_unicast+0x449/0x710
[ 2245.216337][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2245.216337][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2245.216337][   T73]      ___sys_sendmsg+0xee/0x170
[ 2245.216337][   T73]      __sys_sendmsg+0xcd/0x170
[ 2245.216337][   T73]      do_syscall_64+0xc6/0x1e0
[ 2245.216337][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2245.216337][   T73] 
[ 2245.218255][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2245.218255][   T73]      dst_init+0x84/0x4a0
[ 2245.218255][   T73]      dst_alloc+0x97/0x150
[ 2245.218255][   T73]      ip6_dst_alloc+0x23/0x90
[ 2245.218255][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2245.218255][   T73]      ip6_pol_route+0x56f/0x840
[ 2245.218255][   T73]      fib6_rule_lookup+0x456/0x630
[ 2245.218255][   T73]      ip6_route_input+0x59c/0xa50
[ 2245.218255][   T73]      ipv6_rcv+0x397/0x810
[ 2245.218255][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2245.218255][   T73]      process_backlog+0x101/0x620
[ 2245.218255][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2245.218255][   T73]      net_rx_action+0x495/0xbe0
[ 2245.218255][   T73]      __do_softirq+0x1b5/0x7f6
[ 2245.218255][   T73] 
[ 2245.219914][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2245.219914][   T73]      netdev_get_by_index+0x5e/0x80
[ 2245.219914][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2245.219914][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2245.219914][   T73]      ip6_route_add+0x1c/0x140
[ 2245.219914][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2245.219914][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2245.219914][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2245.219914][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2245.219914][   T73]      netlink_rcv_skb+0x130/0x360
[ 2245.219914][   T73]      netlink_unicast+0x449/0x710
[ 2245.219914][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2245.219914][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2245.219914][   T73]      ___sys_sendmsg+0xee/0x170
[ 2245.219914][   T73]      __sys_sendmsg+0xcd/0x170
[ 2245.219914][   T73]      do_syscall_64+0xc6/0x1e0
[ 2245.219914][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2245.219914][   T73] 
[ 2245.221940][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2245.221940][   T73]      netdev_get_by_index+0x5e/0x80
[ 2245.221940][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2245.221940][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2245.221940][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2245.221940][   T73]      ipv6_add_addr+0x411/0x2000
[ 2245.221940][   T73]      inet6_addr_add+0x30e/0xa40
[ 2245.221940][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2245.221940][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2245.221940][   T73]      netlink_rcv_skb+0x130/0x360
[ 2245.221940][   T73]      netlink_unicast+0x449/0x710
[ 2245.221940][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2245.221940][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2245.221940][   T73]      ___sys_sendmsg+0xee/0x170
[ 2245.221940][   T73]      __sys_sendmsg+0xcd/0x170
[ 2245.221940][   T73]      do_syscall_64+0xc6/0x1e0
[ 2245.221940][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2245.221940][   T73] 
[ 2245.223943][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2245.223943][   T73]      netdev_get_by_index+0x5e/0x80
[ 2245.223943][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2245.223943][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2245.223943][   T73]      ip6_route_add+0x1c/0x140
[ 2245.223943][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2245.223943][   T73]      addrconf_add_dev+0xe2/0x170
[ 2245.223943][   T73]      inet6_addr_add+0x12f/0xa40
[ 2245.223943][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2245.223943][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2245.223943][   T73]      netlink_rcv_skb+0x130/0x360
[ 2245.223943][   T73]      netlink_unicast+0x449/0x710
[ 2245.223943][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2245.223943][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2245.223943][   T73]      ___sys_sendmsg+0xee/0x170
[ 2245.223943][   T73]      __sys_sendmsg+0xcd/0x170
[ 2245.223943][   T73]      do_syscall_64+0xc6/0x1e0
[ 2245.223943][   T73] 
[ 2245.225953][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2245.225953][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2245.225953][   T73]      ipv6_find_idev+0x102/0x170
[ 2245.225953][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2245.225953][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2245.225953][   T73]      netlink_rcv_skb+0x130/0x360
[ 2245.225953][   T73]      netlink_unicast+0x449/0x710
[ 2245.225953][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2245.225953][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2245.225953][   T73]      ___sys_sendmsg+0xee/0x170
[ 2245.225953][   T73]      __sys_sendmsg+0xcd/0x170
[ 2245.225953][   T73]      do_syscall_64+0xc6/0x1e0
[ 2245.225953][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2245.225953][   T73] 
[ 2245.227528][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2245.227528][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2245.227528][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2245.227528][   T73]      ipv6_find_idev+0x102/0x170
[ 2245.227528][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2245.227528][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2245.227528][   T73]      netlink_rcv_skb+0x130/0x360
[ 2245.227528][   T73]      netlink_unicast+0x449/0x710
[ 2245.227528][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2245.227528][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2245.227528][   T73]      ___sys_sendmsg+0xee/0x170
[ 2245.227528][   T73]      __sys_sendmsg+0xcd/0x170
[ 2245.227528][   T73]      do_syscall_64+0xc6/0x1e0
[ 2245.227528][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2245.227528][   T73] 
[ 2245.229248][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2245.229542][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2245.229542][   T73]      netdev_get_by_index+0x5e/0x80
[ 2245.229542][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2245.229542][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2245.229542][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2245.229542][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2245.229542][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2245.229542][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2245.229542][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2245.229542][   T73]      addrconf_dad_begin+0x310/0x670
[ 2245.229542][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2245.229542][   T73]      process_one_work+0x84d/0x18a0
[ 2245.229542][   T73]      worker_thread+0x587/0xd30
[ 2245.229542][   T73]      kthread+0x28a/0x350
[ 2245.229542][   T73]      ret_from_fork+0x31/0x70
[ 2245.229542][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2245.229542][   T73] 
[ 2245.231475][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2245.231475][   T73]      netdev_get_by_index+0x5e/0x80
[ 2245.231475][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2245.231475][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2245.231475][   T73]      ip6_route_add+0x1c/0x140
[ 2245.231475][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2245.231475][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2245.231475][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2245.231475][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2245.231475][   T73]      netlink_rcv_skb+0x130/0x360
[ 2245.231475][   T73]      netlink_unicast+0x449/0x710
[ 2245.231475][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2245.231475][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2245.231475][   T73]      ___sys_sendmsg+0xee/0x170
[ 2245.231475][   T73]      __sys_sendmsg+0xcd/0x170
[ 2245.231475][   T73]      do_syscall_64+0xc6/0x1e0
[ 2245.231475][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2245.231475][   T73] 
[ 2245.233501][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2245.233501][   T73]      netdev_get_by_index+0x5e/0x80
[ 2245.233501][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2245.233501][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2245.233501][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2245.233501][   T73]      ipv6_add_addr+0x411/0x2000
[ 2245.233501][   T73]      inet6_addr_add+0x30e/0xa40
[ 2245.233501][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2245.233501][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2245.233501][   T73]      netlink_rcv_skb+0x130/0x360
[ 2245.233501][   T73]      netlink_unicast+0x449/0x710
[ 2245.233501][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2245.233501][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2245.233501][   T73]      ___sys_sendmsg+0xee/0x170
[ 2245.233501][   T73]      __sys_sendmsg+0xcd/0x170
[ 2245.233501][   T73]      do_syscall_64+0xc6/0x1e0
[ 2245.233501][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2245.233501][   T73] 
[ 2245.235560][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2245.235560][   T73]      netdev_get_by_index+0x5e/0x80
[ 2245.235560][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2245.235560][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2245.235560][   T73]      ip6_route_add+0x1c/0x140
[ 2245.235560][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2245.235560][   T73]      addrconf_add_dev+0xe2/0x170
[ 2245.235560][   T73]      inet6_addr_add+0x12f/0xa40
[ 2245.235560][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2245.235560][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2245.235560][   T73]      netlink_rcv_skb+0x130/0x360
[ 2245.235560][   T73]      netlink_unicast+0x449/0x710
[ 2245.235560][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2245.235560][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2245.235560][   T73]      ___sys_sendmsg+0xee/0x170
[ 2245.235560][   T73]      __sys_sendmsg+0xcd/0x170
[ 2245.235560][   T73]      do_syscall_64+0xc6/0x1e0
[ 2245.235560][   T73] 
[ 2245.237531][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2245.237531][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2245.237531][   T73]      ipv6_find_idev+0x102/0x170
[ 2245.237531][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2245.237531][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2245.237531][   T73]      netlink_rcv_skb+0x130/0x360
[ 2245.237531][   T73]      netlink_unicast+0x449/0x710
[ 2245.237531][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2245.237531][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2245.237531][   T73]      ___sys_sendmsg+0xee/0x170
[ 2245.237531][   T73]      __sys_sendmsg+0xcd/0x170
[ 2245.237531][   T73]      do_syscall_64+0xc6/0x1e0
[ 2245.237531][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2245.237531][   T73] 
[ 2245.239087][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2245.239087][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2245.239087][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2245.239087][   T73]      ipv6_find_idev+0x102/0x170
[ 2245.239087][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2245.239087][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2245.239087][   T73]      netlink_rcv_skb+0x130/0x360
[ 2245.239087][   T73]      netlink_unicast+0x449/0x710
[ 2245.239087][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2245.239087][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2245.239087][   T73]      ___sys_sendmsg+0xee/0x170
[ 2245.239087][   T73]      __sys_sendmsg+0xcd/0x170
[ 2245.239087][   T73]      do_syscall_64+0xc6/0x1e0
[ 2245.239087][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2245.239087][   T73] 
[ 2245.240776][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2245.241051][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2245.241051][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2245.241051][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2245.241051][   T73]      fib6_nh_init+0xa22/0x1580
[ 2245.241051][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2245.241051][   T73]      ip6_route_add+0x1c/0x140
[ 2245.241051][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2245.241051][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2245.241051][   T73]      netlink_rcv_skb+0x130/0x360
[ 2245.241051][   T73]      netlink_unicast+0x449/0x710
[ 2245.241051][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2245.241051][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2245.241051][   T73]      ___sys_sendmsg+0xee/0x170
[ 2245.241051][   T73]      __sys_sendmsg+0xcd/0x170
[ 2245.241051][   T73]      do_syscall_64+0xc6/0x1e0
[ 2245.241051][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2245.241051][   T73] 
[ 2245.243113][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2245.243113][   T73]      dst_init+0x84/0x4a0
[ 2245.243113][   T73]      dst_alloc+0x97/0x150
[ 2245.243113][   T73]      ip6_dst_alloc+0x23/0x90
[ 2245.243113][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2245.243113][   T73]      ip6_pol_route+0x56f/0x840
[ 2245.243113][   T73]      fib6_rule_lookup+0x456/0x630
[ 2245.243113][   T73]      ip6_route_input+0x59c/0xa50
[ 2245.243113][   T73]      ipv6_rcv+0x397/0x810
[ 2245.243113][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2245.243113][   T73]      process_backlog+0x101/0x620
[ 2245.243113][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2245.243113][   T73]      net_rx_action+0x495/0xbe0
[ 2245.243113][   T73]      __do_softirq+0x1b5/0x7f6
[ 2245.243113][   T73] 
[ 2245.244931][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2245.244931][   T73]      netdev_get_by_index+0x5e/0x80
[ 2245.244931][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2245.244931][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2245.244931][   T73]      ip6_route_add+0x1c/0x140
[ 2245.244931][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2245.244931][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2245.244931][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2245.244931][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2245.244931][   T73]      netlink_rcv_skb+0x130/0x360
[ 2245.244931][   T73]      netlink_unicast+0x449/0x710
[ 2245.244931][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2245.244931][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2245.244931][   T73]      ___sys_sendmsg+0xee/0x170
[ 2245.244931][   T73]      __sys_sendmsg+0xcd/0x170
[ 2245.244931][   T73]      do_syscall_64+0xc6/0x1e0
[ 2245.244931][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2245.244931][   T73] 
[ 2245.247211][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2245.247211][   T73]      netdev_get_by_index+0x5e/0x80
[ 2245.247211][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2245.247211][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2245.247211][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2245.247211][   T73]      ipv6_add_addr+0x411/0x2000
[ 2245.247211][   T73]      inet6_addr_add+0x30e/0xa40
[ 2245.247211][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2245.247211][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2245.247211][   T73]      netlink_rcv_skb+0x130/0x360
[ 2245.247211][   T73]      netlink_unicast+0x449/0x710
[ 2245.247211][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2245.247211][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2245.247211][   T73]      ___sys_sendmsg+0xee/0x170
[ 2245.247211][   T73]      __sys_sendmsg+0xcd/0x170
[ 2245.247211][   T73]      do_syscall_64+0xc6/0x1e0
[ 2245.247211][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2245.247211][   T73] 
[ 2245.250067][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2245.250067][   T73]      netdev_get_by_index+0x5e/0x80
[ 2245.250067][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2245.250067][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2245.250067][   T73]      ip6_route_add+0x1c/0x140
[ 2245.250067][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2245.250067][   T73]      addrconf_add_dev+0xe2/0x170
[ 2245.250067][   T73]      inet6_addr_add+0x12f/0xa40
[ 2245.250067][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2245.250067][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2245.250067][   T73]      netlink_rcv_skb+0x130/0x360
[ 2245.250067][   T73]      netlink_unicast+0x449/0x710
[ 2245.250067][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2245.250067][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2245.250067][   T73]      ___sys_sendmsg+0xee/0x170
[ 2245.250067][   T73]      __sys_sendmsg+0xcd/0x170
[ 2245.250067][   T73]      do_syscall_64+0xc6/0x1e0
[ 2245.250067][   T73] 
[ 2245.252233][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2245.252233][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2245.252233][   T73]      ipv6_find_idev+0x102/0x170
[ 2245.252233][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2245.252233][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2245.252233][   T73]      netlink_rcv_skb+0x130/0x360
[ 2245.252233][   T73]      netlink_unicast+0x449/0x710
[ 2245.252233][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2245.252233][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2245.252233][   T73]      ___sys_sendmsg+0xee/0x170
[ 2245.252233][   T73]      __sys_sendmsg+0xcd/0x170
[ 2245.252233][   T73]      do_syscall_64+0xc6/0x1e0
[ 2245.252233][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2245.252233][   T73] 
[ 2245.253969][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2245.253969][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2245.253969][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2245.253969][   T73]      ipv6_find_idev+0x102/0x170
[ 2245.253969][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2245.253969][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2245.253969][   T73]      netlink_rcv_skb+0x130/0x360
[ 2245.253969][   T73]      netlink_unicast+0x449/0x710
[ 2245.253969][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2245.253969][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2245.253969][   T73]      ___sys_sendmsg+0xee/0x170
[ 2245.253969][   T73]      __sys_sendmsg+0xcd/0x170
[ 2245.253969][   T73]      do_syscall_64+0xc6/0x1e0
[ 2245.253969][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2245.253969][   T73] 
[ 2245.255960][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2245.256235][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2245.256235][   T73]      netdev_get_by_index+0x5e/0x80
[ 2245.256235][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2245.256235][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2245.256235][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2245.256235][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2245.256235][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2245.256235][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2245.256235][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2245.256235][   T73]      addrconf_dad_begin+0x310/0x670
[ 2245.256235][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2245.256235][   T73]      process_one_work+0x84d/0x18a0
[ 2245.256235][   T73]      worker_thread+0x587/0xd30
[ 2245.256235][   T73]      kthread+0x28a/0x350
[ 2245.256235][   T73]      ret_from_fork+0x31/0x70
[ 2245.256235][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2245.256235][   T73] 
[ 2245.258468][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2245.258468][   T73]      netdev_get_by_index+0x5e/0x80
[ 2245.258468][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2245.258468][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2245.258468][   T73]      ip6_route_add+0x1c/0x140
[ 2245.258468][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2245.258468][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2245.258468][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2245.258468][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2245.258468][   T73]      netlink_rcv_skb+0x130/0x360
[ 2245.258468][   T73]      netlink_unicast+0x449/0x710
[ 2245.258468][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2245.258468][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2245.258468][   T73]      ___sys_sendmsg+0xee/0x170
[ 2245.258468][   T73]      __sys_sendmsg+0xcd/0x170
[ 2245.258468][   T73]      do_syscall_64+0xc6/0x1e0
[ 2245.258468][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2245.258468][   T73] 
[ 2245.260648][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2245.260648][   T73]      netdev_get_by_index+0x5e/0x80
[ 2245.260648][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2245.260648][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2245.260648][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2245.260648][   T73]      ipv6_add_addr+0x411/0x2000
[ 2245.260648][   T73]      inet6_addr_add+0x30e/0xa40
[ 2245.260648][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2245.260648][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2245.260648][   T73]      netlink_rcv_skb+0x130/0x360
[ 2245.260648][   T73]      netlink_unicast+0x449/0x710
[ 2245.260648][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2245.260648][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2245.260648][   T73]      ___sys_sendmsg+0xee/0x170
[ 2245.260648][   T73]      __sys_sendmsg+0xcd/0x170
[ 2245.260648][   T73]      do_syscall_64+0xc6/0x1e0
[ 2245.260648][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2245.260648][   T73] 
[ 2245.262882][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2245.262882][   T73]      netdev_get_by_index+0x5e/0x80
[ 2245.262882][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2245.262882][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2245.262882][   T73]      ip6_route_add+0x1c/0x140
[ 2245.262882][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2245.262882][   T73]      addrconf_add_dev+0xe2/0x170
[ 2245.262882][   T73]      inet6_addr_add+0x12f/0xa40
[ 2245.262882][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2245.262882][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2245.262882][   T73]      netlink_rcv_skb+0x130/0x360
[ 2245.262882][   T73]      netlink_unicast+0x449/0x710
[ 2245.262882][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2245.262882][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2245.262882][   T73]      ___sys_sendmsg+0xee/0x170
[ 2245.262882][   T73]      __sys_sendmsg+0xcd/0x170
[ 2245.262882][   T73]      do_syscall_64+0xc6/0x1e0
[ 2245.262882][   T73] 
[ 2245.265104][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2245.265104][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2245.265104][   T73]      ipv6_find_idev+0x102/0x170
[ 2245.265104][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2245.265104][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2245.265104][   T73]      netlink_rcv_skb+0x130/0x360
[ 2245.265104][   T73]      netlink_unicast+0x449/0x710
[ 2245.265104][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2245.265104][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2245.265104][   T73]      ___sys_sendmsg+0xee/0x170
[ 2245.265104][   T73]      __sys_sendmsg+0xcd/0x170
[ 2245.265104][   T73]      do_syscall_64+0xc6/0x1e0
[ 2245.265104][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2245.265104][   T73] 
[ 2245.266839][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2245.266839][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2245.266839][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2245.266839][   T73]      ipv6_find_idev+0x102/0x170
[ 2245.266839][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2245.266839][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2245.266839][   T73]      netlink_rcv_skb+0x130/0x360
[ 2245.266839][   T73]      netlink_unicast+0x449/0x710
[ 2245.266839][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2245.266839][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2245.266839][   T73]      ___sys_sendmsg+0xee/0x170
[ 2245.266839][   T73]      __sys_sendmsg+0xcd/0x170
[ 2245.266839][   T73]      do_syscall_64+0xc6/0x1e0
[ 2245.266839][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2245.266839][   T73] 
[ 2255.359727][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2255.360162][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2255.360162][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2255.360162][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2255.360162][   T73]      fib6_nh_init+0xa22/0x1580
[ 2255.360162][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2255.360162][   T73]      ip6_route_add+0x1c/0x140
[ 2255.360162][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2255.360162][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2255.360162][   T73]      netlink_rcv_skb+0x130/0x360
[ 2255.360162][   T73]      netlink_unicast+0x449/0x710
[ 2255.360162][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2255.360162][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2255.360162][   T73]      ___sys_sendmsg+0xee/0x170
[ 2255.360162][   T73]      __sys_sendmsg+0xcd/0x170
[ 2255.360162][   T73]      do_syscall_64+0xc6/0x1e0
[ 2255.360162][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2255.360162][   T73] 
[ 2255.362166][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2255.362166][   T73]      dst_init+0x84/0x4a0
[ 2255.362166][   T73]      dst_alloc+0x97/0x150
[ 2255.362166][   T73]      ip6_dst_alloc+0x23/0x90
[ 2255.362166][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2255.362166][   T73]      ip6_pol_route+0x56f/0x840
[ 2255.362166][   T73]      fib6_rule_lookup+0x456/0x630
[ 2255.362166][   T73]      ip6_route_input+0x59c/0xa50
[ 2255.362166][   T73]      ipv6_rcv+0x397/0x810
[ 2255.362166][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2255.362166][   T73]      process_backlog+0x101/0x620
[ 2255.362166][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2255.362166][   T73]      net_rx_action+0x495/0xbe0
[ 2255.362166][   T73]      __do_softirq+0x1b5/0x7f6
[ 2255.362166][   T73] 
[ 2255.363890][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2255.363890][   T73]      netdev_get_by_index+0x5e/0x80
[ 2255.363890][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2255.363890][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2255.363890][   T73]      ip6_route_add+0x1c/0x140
[ 2255.363890][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2255.363890][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2255.363890][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2255.363890][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2255.363890][   T73]      netlink_rcv_skb+0x130/0x360
[ 2255.363890][   T73]      netlink_unicast+0x449/0x710
[ 2255.363890][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2255.363890][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2255.363890][   T73]      ___sys_sendmsg+0xee/0x170
[ 2255.363890][   T73]      __sys_sendmsg+0xcd/0x170
[ 2255.363890][   T73]      do_syscall_64+0xc6/0x1e0
[ 2255.363890][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2255.363890][   T73] 
[ 2255.365909][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2255.365909][   T73]      netdev_get_by_index+0x5e/0x80
[ 2255.365909][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2255.365909][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2255.365909][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2255.365909][   T73]      ipv6_add_addr+0x411/0x2000
[ 2255.365909][   T73]      inet6_addr_add+0x30e/0xa40
[ 2255.365909][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2255.365909][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2255.365909][   T73]      netlink_rcv_skb+0x130/0x360
[ 2255.365909][   T73]      netlink_unicast+0x449/0x710
[ 2255.365909][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2255.365909][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2255.365909][   T73]      ___sys_sendmsg+0xee/0x170
[ 2255.365909][   T73]      __sys_sendmsg+0xcd/0x170
[ 2255.365909][   T73]      do_syscall_64+0xc6/0x1e0
[ 2255.365909][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2255.365909][   T73] 
[ 2255.367895][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2255.367895][   T73]      netdev_get_by_index+0x5e/0x80
[ 2255.367895][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2255.367895][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2255.367895][   T73]      ip6_route_add+0x1c/0x140
[ 2255.367895][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2255.367895][   T73]      addrconf_add_dev+0xe2/0x170
[ 2255.367895][   T73]      inet6_addr_add+0x12f/0xa40
[ 2255.367895][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2255.367895][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2255.367895][   T73]      netlink_rcv_skb+0x130/0x360
[ 2255.367895][   T73]      netlink_unicast+0x449/0x710
[ 2255.367895][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2255.367895][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2255.367895][   T73]      ___sys_sendmsg+0xee/0x170
[ 2255.367895][   T73]      __sys_sendmsg+0xcd/0x170
[ 2255.367895][   T73]      do_syscall_64+0xc6/0x1e0
[ 2255.367895][   T73] 
[ 2255.369839][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2255.369839][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2255.369839][   T73]      ipv6_find_idev+0x102/0x170
[ 2255.369839][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2255.369839][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2255.369839][   T73]      netlink_rcv_skb+0x130/0x360
[ 2255.369839][   T73]      netlink_unicast+0x449/0x710
[ 2255.369839][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2255.369839][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2255.369839][   T73]      ___sys_sendmsg+0xee/0x170
[ 2255.369839][   T73]      __sys_sendmsg+0xcd/0x170
[ 2255.369839][   T73]      do_syscall_64+0xc6/0x1e0
[ 2255.369839][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2255.369839][   T73] 
[ 2255.371436][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2255.371436][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2255.371436][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2255.371436][   T73]      ipv6_find_idev+0x102/0x170
[ 2255.371436][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2255.371436][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2255.371436][   T73]      netlink_rcv_skb+0x130/0x360
[ 2255.371436][   T73]      netlink_unicast+0x449/0x710
[ 2255.371436][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2255.371436][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2255.371436][   T73]      ___sys_sendmsg+0xee/0x170
[ 2255.371436][   T73]      __sys_sendmsg+0xcd/0x170
[ 2255.371436][   T73]      do_syscall_64+0xc6/0x1e0
[ 2255.371436][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2255.371436][   T73] 
[ 2255.373232][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2255.373542][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2255.373542][   T73]      netdev_get_by_index+0x5e/0x80
[ 2255.373542][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2255.373542][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2255.373542][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2255.373542][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2255.373542][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2255.373542][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2255.373542][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2255.373542][   T73]      addrconf_dad_begin+0x310/0x670
[ 2255.373542][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2255.373542][   T73]      process_one_work+0x84d/0x18a0
[ 2255.373542][   T73]      worker_thread+0x587/0xd30
[ 2255.373542][   T73]      kthread+0x28a/0x350
[ 2255.373542][   T73]      ret_from_fork+0x31/0x70
[ 2255.373542][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2255.373542][   T73] 
[ 2255.375556][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2255.375556][   T73]      netdev_get_by_index+0x5e/0x80
[ 2255.375556][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2255.375556][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2255.375556][   T73]      ip6_route_add+0x1c/0x140
[ 2255.375556][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2255.375556][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2255.375556][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2255.375556][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2255.375556][   T73]      netlink_rcv_skb+0x130/0x360
[ 2255.375556][   T73]      netlink_unicast+0x449/0x710
[ 2255.375556][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2255.375556][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2255.375556][   T73]      ___sys_sendmsg+0xee/0x170
[ 2255.375556][   T73]      __sys_sendmsg+0xcd/0x170
[ 2255.375556][   T73]      do_syscall_64+0xc6/0x1e0
[ 2255.375556][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2255.375556][   T73] 
[ 2255.377664][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2255.377664][   T73]      netdev_get_by_index+0x5e/0x80
[ 2255.377664][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2255.377664][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2255.377664][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2255.377664][   T73]      ipv6_add_addr+0x411/0x2000
[ 2255.377664][   T73]      inet6_addr_add+0x30e/0xa40
[ 2255.377664][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2255.377664][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2255.377664][   T73]      netlink_rcv_skb+0x130/0x360
[ 2255.377664][   T73]      netlink_unicast+0x449/0x710
[ 2255.377664][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2255.377664][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2255.377664][   T73]      ___sys_sendmsg+0xee/0x170
[ 2255.377664][   T73]      __sys_sendmsg+0xcd/0x170
[ 2255.377664][   T73]      do_syscall_64+0xc6/0x1e0
[ 2255.377664][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2255.377664][   T73] 
[ 2255.379771][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2255.379771][   T73]      netdev_get_by_index+0x5e/0x80
[ 2255.379771][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2255.379771][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2255.379771][   T73]      ip6_route_add+0x1c/0x140
[ 2255.379771][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2255.379771][   T73]      addrconf_add_dev+0xe2/0x170
[ 2255.379771][   T73]      inet6_addr_add+0x12f/0xa40
[ 2255.379771][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2255.379771][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2255.379771][   T73]      netlink_rcv_skb+0x130/0x360
[ 2255.379771][   T73]      netlink_unicast+0x449/0x710
[ 2255.379771][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2255.379771][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2255.379771][   T73]      ___sys_sendmsg+0xee/0x170
[ 2255.379771][   T73]      __sys_sendmsg+0xcd/0x170
[ 2255.379771][   T73]      do_syscall_64+0xc6/0x1e0
[ 2255.379771][   T73] 
[ 2255.381866][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2255.381866][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2255.381866][   T73]      ipv6_find_idev+0x102/0x170
[ 2255.381866][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2255.381866][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2255.381866][   T73]      netlink_rcv_skb+0x130/0x360
[ 2255.381866][   T73]      netlink_unicast+0x449/0x710
[ 2255.381866][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2255.381866][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2255.381866][   T73]      ___sys_sendmsg+0xee/0x170
[ 2255.381866][   T73]      __sys_sendmsg+0xcd/0x170
[ 2255.381866][   T73]      do_syscall_64+0xc6/0x1e0
[ 2255.381866][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2255.381866][   T73] 
[ 2255.383467][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2255.383467][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2255.383467][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2255.383467][   T73]      ipv6_find_idev+0x102/0x170
[ 2255.383467][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2255.383467][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2255.383467][   T73]      netlink_rcv_skb+0x130/0x360
[ 2255.383467][   T73]      netlink_unicast+0x449/0x710
[ 2255.383467][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2255.383467][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2255.383467][   T73]      ___sys_sendmsg+0xee/0x170
[ 2255.383467][   T73]      __sys_sendmsg+0xcd/0x170
[ 2255.383467][   T73]      do_syscall_64+0xc6/0x1e0
[ 2255.383467][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2255.383467][   T73] 
[ 2255.385149][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2255.385420][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2255.385420][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2255.385420][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2255.385420][   T73]      fib6_nh_init+0xa22/0x1580
[ 2255.385420][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2255.385420][   T73]      ip6_route_add+0x1c/0x140
[ 2255.385420][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2255.385420][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2255.385420][   T73]      netlink_rcv_skb+0x130/0x360
[ 2255.385420][   T73]      netlink_unicast+0x449/0x710
[ 2255.385420][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2255.385420][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2255.385420][   T73]      ___sys_sendmsg+0xee/0x170
[ 2255.385420][   T73]      __sys_sendmsg+0xcd/0x170
[ 2255.385420][   T73]      do_syscall_64+0xc6/0x1e0
[ 2255.385420][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2255.385420][   T73] 
[ 2255.387356][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2255.387356][   T73]      dst_init+0x84/0x4a0
[ 2255.387356][   T73]      dst_alloc+0x97/0x150
[ 2255.387356][   T73]      ip6_dst_alloc+0x23/0x90
[ 2255.387356][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2255.387356][   T73]      ip6_pol_route+0x56f/0x840
[ 2255.387356][   T73]      fib6_rule_lookup+0x456/0x630
[ 2255.387356][   T73]      ip6_route_input+0x59c/0xa50
[ 2255.387356][   T73]      ipv6_rcv+0x397/0x810
[ 2255.387356][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2255.387356][   T73]      process_backlog+0x101/0x620
[ 2255.387356][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2255.387356][   T73]      net_rx_action+0x495/0xbe0
[ 2255.387356][   T73]      __do_softirq+0x1b5/0x7f6
[ 2255.387356][   T73] 
[ 2255.389288][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2255.389288][   T73]      netdev_get_by_index+0x5e/0x80
[ 2255.389288][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2255.389288][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2255.389288][   T73]      ip6_route_add+0x1c/0x140
[ 2255.389288][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2255.389288][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2255.389288][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2255.389288][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2255.389288][   T73]      netlink_rcv_skb+0x130/0x360
[ 2255.389288][   T73]      netlink_unicast+0x449/0x710
[ 2255.389288][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2255.389288][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2255.389288][   T73]      ___sys_sendmsg+0xee/0x170
[ 2255.389288][   T73]      __sys_sendmsg+0xcd/0x170
[ 2255.389288][   T73]      do_syscall_64+0xc6/0x1e0
[ 2255.389288][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2255.389288][   T73] 
[ 2255.391626][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2255.391626][   T73]      netdev_get_by_index+0x5e/0x80
[ 2255.391626][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2255.391626][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2255.391626][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2255.391626][   T73]      ipv6_add_addr+0x411/0x2000
[ 2255.391626][   T73]      inet6_addr_add+0x30e/0xa40
[ 2255.391626][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2255.391626][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2255.391626][   T73]      netlink_rcv_skb+0x130/0x360
[ 2255.391626][   T73]      netlink_unicast+0x449/0x710
[ 2255.391626][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2255.391626][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2255.391626][   T73]      ___sys_sendmsg+0xee/0x170
[ 2255.391626][   T73]      __sys_sendmsg+0xcd/0x170
[ 2255.391626][   T73]      do_syscall_64+0xc6/0x1e0
[ 2255.391626][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2255.391626][   T73] 
[ 2255.394015][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2255.394015][   T73]      netdev_get_by_index+0x5e/0x80
[ 2255.394015][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2255.394015][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2255.394015][   T73]      ip6_route_add+0x1c/0x140
[ 2255.394015][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2255.394015][   T73]      addrconf_add_dev+0xe2/0x170
[ 2255.394015][   T73]      inet6_addr_add+0x12f/0xa40
[ 2255.394015][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2255.394015][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2255.394015][   T73]      netlink_rcv_skb+0x130/0x360
[ 2255.394015][   T73]      netlink_unicast+0x449/0x710
[ 2255.394015][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2255.394015][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2255.394015][   T73]      ___sys_sendmsg+0xee/0x170
[ 2255.394015][   T73]      __sys_sendmsg+0xcd/0x170
[ 2255.394015][   T73]      do_syscall_64+0xc6/0x1e0
[ 2255.394015][   T73] 
[ 2255.396393][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2255.396393][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2255.396393][   T73]      ipv6_find_idev+0x102/0x170
[ 2255.396393][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2255.396393][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2255.396393][   T73]      netlink_rcv_skb+0x130/0x360
[ 2255.396393][   T73]      netlink_unicast+0x449/0x710
[ 2255.396393][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2255.396393][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2255.396393][   T73]      ___sys_sendmsg+0xee/0x170
[ 2255.396393][   T73]      __sys_sendmsg+0xcd/0x170
[ 2255.396393][   T73]      do_syscall_64+0xc6/0x1e0
[ 2255.396393][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2255.396393][   T73] 
[ 2255.398292][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2255.398292][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2255.398292][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2255.398292][   T73]      ipv6_find_idev+0x102/0x170
[ 2255.398292][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2255.398292][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2255.398292][   T73]      netlink_rcv_skb+0x130/0x360
[ 2255.398292][   T73]      netlink_unicast+0x449/0x710
[ 2255.398292][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2255.398292][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2255.398292][   T73]      ___sys_sendmsg+0xee/0x170
[ 2255.398292][   T73]      __sys_sendmsg+0xcd/0x170
[ 2255.398292][   T73]      do_syscall_64+0xc6/0x1e0
[ 2255.398292][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2255.398292][   T73] 
[ 2255.400300][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2255.400614][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2255.400614][   T73]      netdev_get_by_index+0x5e/0x80
[ 2255.400614][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2255.400614][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2255.400614][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2255.400614][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2255.400614][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2255.400614][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2255.400614][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2255.400614][   T73]      addrconf_dad_begin+0x310/0x670
[ 2255.400614][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2255.400614][   T73]      process_one_work+0x84d/0x18a0
[ 2255.400614][   T73]      worker_thread+0x587/0xd30
[ 2255.400614][   T73]      kthread+0x28a/0x350
[ 2255.400614][   T73]      ret_from_fork+0x31/0x70
[ 2255.400614][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2255.400614][   T73] 
[ 2255.402866][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2255.402866][   T73]      netdev_get_by_index+0x5e/0x80
[ 2255.402866][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2255.402866][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2255.402866][   T73]      ip6_route_add+0x1c/0x140
[ 2255.402866][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2255.402866][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2255.402866][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2255.402866][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2255.402866][   T73]      netlink_rcv_skb+0x130/0x360
[ 2255.402866][   T73]      netlink_unicast+0x449/0x710
[ 2255.402866][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2255.402866][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2255.402866][   T73]      ___sys_sendmsg+0xee/0x170
[ 2255.402866][   T73]      __sys_sendmsg+0xcd/0x170
[ 2255.402866][   T73]      do_syscall_64+0xc6/0x1e0
[ 2255.402866][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2255.402866][   T73] 
[ 2255.405183][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2255.405183][   T73]      netdev_get_by_index+0x5e/0x80
[ 2255.405183][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2255.405183][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2255.405183][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2255.405183][   T73]      ipv6_add_addr+0x411/0x2000
[ 2255.405183][   T73]      inet6_addr_add+0x30e/0xa40
[ 2255.405183][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2255.405183][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2255.405183][   T73]      netlink_rcv_skb+0x130/0x360
[ 2255.405183][   T73]      netlink_unicast+0x449/0x710
[ 2255.405183][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2255.405183][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2255.405183][   T73]      ___sys_sendmsg+0xee/0x170
[ 2255.405183][   T73]      __sys_sendmsg+0xcd/0x170
[ 2255.405183][   T73]      do_syscall_64+0xc6/0x1e0
[ 2255.405183][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2255.405183][   T73] 
[ 2255.407520][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2255.407520][   T73]      netdev_get_by_index+0x5e/0x80
[ 2255.407520][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2255.407520][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2255.407520][   T73]      ip6_route_add+0x1c/0x140
[ 2255.407520][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2255.407520][   T73]      addrconf_add_dev+0xe2/0x170
[ 2255.407520][   T73]      inet6_addr_add+0x12f/0xa40
[ 2255.407520][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2255.407520][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2255.407520][   T73]      netlink_rcv_skb+0x130/0x360
[ 2255.407520][   T73]      netlink_unicast+0x449/0x710
[ 2255.407520][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2255.407520][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2255.407520][   T73]      ___sys_sendmsg+0xee/0x170
[ 2255.407520][   T73]      __sys_sendmsg+0xcd/0x170
[ 2255.407520][   T73]      do_syscall_64+0xc6/0x1e0
[ 2255.407520][   T73] 
[ 2255.409743][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2255.409743][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2255.409743][   T73]      ipv6_find_idev+0x102/0x170
[ 2255.409743][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2255.409743][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2255.409743][   T73]      netlink_rcv_skb+0x130/0x360
[ 2255.409743][   T73]      netlink_unicast+0x449/0x710
[ 2255.409743][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2255.409743][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2255.409743][   T73]      ___sys_sendmsg+0xee/0x170
[ 2255.409743][   T73]      __sys_sendmsg+0xcd/0x170
[ 2255.409743][   T73]      do_syscall_64+0xc6/0x1e0
[ 2255.409743][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2255.409743][   T73] 
[ 2255.411477][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2255.411477][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2255.411477][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2255.411477][   T73]      ipv6_find_idev+0x102/0x170
[ 2255.411477][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2255.411477][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2255.411477][   T73]      netlink_rcv_skb+0x130/0x360
[ 2255.411477][   T73]      netlink_unicast+0x449/0x710
[ 2255.411477][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2255.411477][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2255.411477][   T73]      ___sys_sendmsg+0xee/0x170
[ 2255.411477][   T73]      __sys_sendmsg+0xcd/0x170
[ 2255.411477][   T73]      do_syscall_64+0xc6/0x1e0
[ 2255.411477][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2255.411477][   T73] 
[ 2265.663756][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2265.664180][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2265.664180][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2265.664180][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2265.664180][   T73]      fib6_nh_init+0xa22/0x1580
[ 2265.664180][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2265.664180][   T73]      ip6_route_add+0x1c/0x140
[ 2265.664180][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2265.664180][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2265.664180][   T73]      netlink_rcv_skb+0x130/0x360
[ 2265.664180][   T73]      netlink_unicast+0x449/0x710
[ 2265.664180][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2265.664180][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2265.664180][   T73]      ___sys_sendmsg+0xee/0x170
[ 2265.664180][   T73]      __sys_sendmsg+0xcd/0x170
[ 2265.664180][   T73]      do_syscall_64+0xc6/0x1e0
[ 2265.664180][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2265.664180][   T73] 
[ 2265.666126][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2265.666126][   T73]      dst_init+0x84/0x4a0
[ 2265.666126][   T73]      dst_alloc+0x97/0x150
[ 2265.666126][   T73]      ip6_dst_alloc+0x23/0x90
[ 2265.666126][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2265.666126][   T73]      ip6_pol_route+0x56f/0x840
[ 2265.666126][   T73]      fib6_rule_lookup+0x456/0x630
[ 2265.666126][   T73]      ip6_route_input+0x59c/0xa50
[ 2265.666126][   T73]      ipv6_rcv+0x397/0x810
[ 2265.666126][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2265.666126][   T73]      process_backlog+0x101/0x620
[ 2265.666126][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2265.666126][   T73]      net_rx_action+0x495/0xbe0
[ 2265.666126][   T73]      __do_softirq+0x1b5/0x7f6
[ 2265.666126][   T73] 
[ 2265.667771][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2265.667771][   T73]      netdev_get_by_index+0x5e/0x80
[ 2265.667771][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2265.667771][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2265.667771][   T73]      ip6_route_add+0x1c/0x140
[ 2265.667771][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2265.667771][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2265.667771][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2265.667771][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2265.667771][   T73]      netlink_rcv_skb+0x130/0x360
[ 2265.667771][   T73]      netlink_unicast+0x449/0x710
[ 2265.667771][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2265.667771][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2265.667771][   T73]      ___sys_sendmsg+0xee/0x170
[ 2265.667771][   T73]      __sys_sendmsg+0xcd/0x170
[ 2265.667771][   T73]      do_syscall_64+0xc6/0x1e0
[ 2265.667771][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2265.667771][   T73] 
[ 2265.669773][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2265.669773][   T73]      netdev_get_by_index+0x5e/0x80
[ 2265.669773][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2265.669773][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2265.669773][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2265.669773][   T73]      ipv6_add_addr+0x411/0x2000
[ 2265.669773][   T73]      inet6_addr_add+0x30e/0xa40
[ 2265.669773][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2265.669773][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2265.669773][   T73]      netlink_rcv_skb+0x130/0x360
[ 2265.669773][   T73]      netlink_unicast+0x449/0x710
[ 2265.669773][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2265.669773][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2265.669773][   T73]      ___sys_sendmsg+0xee/0x170
[ 2265.669773][   T73]      __sys_sendmsg+0xcd/0x170
[ 2265.669773][   T73]      do_syscall_64+0xc6/0x1e0
[ 2265.669773][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2265.669773][   T73] 
[ 2265.671754][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2265.671754][   T73]      netdev_get_by_index+0x5e/0x80
[ 2265.671754][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2265.671754][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2265.671754][   T73]      ip6_route_add+0x1c/0x140
[ 2265.671754][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2265.671754][   T73]      addrconf_add_dev+0xe2/0x170
[ 2265.671754][   T73]      inet6_addr_add+0x12f/0xa40
[ 2265.671754][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2265.671754][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2265.671754][   T73]      netlink_rcv_skb+0x130/0x360
[ 2265.671754][   T73]      netlink_unicast+0x449/0x710
[ 2265.671754][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2265.671754][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2265.671754][   T73]      ___sys_sendmsg+0xee/0x170
[ 2265.671754][   T73]      __sys_sendmsg+0xcd/0x170
[ 2265.671754][   T73]      do_syscall_64+0xc6/0x1e0
[ 2265.671754][   T73] 
[ 2265.673705][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2265.673705][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2265.673705][   T73]      ipv6_find_idev+0x102/0x170
[ 2265.673705][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2265.673705][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2265.673705][   T73]      netlink_rcv_skb+0x130/0x360
[ 2265.673705][   T73]      netlink_unicast+0x449/0x710
[ 2265.673705][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2265.673705][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2265.673705][   T73]      ___sys_sendmsg+0xee/0x170
[ 2265.673705][   T73]      __sys_sendmsg+0xcd/0x170
[ 2265.673705][   T73]      do_syscall_64+0xc6/0x1e0
[ 2265.673705][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2265.673705][   T73] 
[ 2265.675268][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2265.675268][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2265.675268][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2265.675268][   T73]      ipv6_find_idev+0x102/0x170
[ 2265.675268][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2265.675268][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2265.675268][   T73]      netlink_rcv_skb+0x130/0x360
[ 2265.675268][   T73]      netlink_unicast+0x449/0x710
[ 2265.675268][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2265.675268][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2265.675268][   T73]      ___sys_sendmsg+0xee/0x170
[ 2265.675268][   T73]      __sys_sendmsg+0xcd/0x170
[ 2265.675268][   T73]      do_syscall_64+0xc6/0x1e0
[ 2265.675268][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2265.675268][   T73] 
[ 2265.676971][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2265.677260][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2265.677260][   T73]      netdev_get_by_index+0x5e/0x80
[ 2265.677260][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2265.677260][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2265.677260][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2265.677260][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2265.677260][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2265.677260][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2265.677260][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2265.677260][   T73]      addrconf_dad_begin+0x310/0x670
[ 2265.677260][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2265.677260][   T73]      process_one_work+0x84d/0x18a0
[ 2265.677260][   T73]      worker_thread+0x587/0xd30
[ 2265.677260][   T73]      kthread+0x28a/0x350
[ 2265.677260][   T73]      ret_from_fork+0x31/0x70
[ 2265.677260][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2265.677260][   T73] 
[ 2265.679177][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2265.679177][   T73]      netdev_get_by_index+0x5e/0x80
[ 2265.679177][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2265.679177][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2265.679177][   T73]      ip6_route_add+0x1c/0x140
[ 2265.679177][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2265.679177][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2265.679177][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2265.679177][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2265.679177][   T73]      netlink_rcv_skb+0x130/0x360
[ 2265.679177][   T73]      netlink_unicast+0x449/0x710
[ 2265.679177][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2265.679177][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2265.679177][   T73]      ___sys_sendmsg+0xee/0x170
[ 2265.679177][   T73]      __sys_sendmsg+0xcd/0x170
[ 2265.679177][   T73]      do_syscall_64+0xc6/0x1e0
[ 2265.679177][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2265.679177][   T73] 
[ 2265.681188][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2265.681188][   T73]      netdev_get_by_index+0x5e/0x80
[ 2265.681188][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2265.681188][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2265.681188][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2265.681188][   T73]      ipv6_add_addr+0x411/0x2000
[ 2265.681188][   T73]      inet6_addr_add+0x30e/0xa40
[ 2265.681188][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2265.681188][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2265.681188][   T73]      netlink_rcv_skb+0x130/0x360
[ 2265.681188][   T73]      netlink_unicast+0x449/0x710
[ 2265.681188][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2265.681188][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2265.681188][   T73]      ___sys_sendmsg+0xee/0x170
[ 2265.681188][   T73]      __sys_sendmsg+0xcd/0x170
[ 2265.681188][   T73]      do_syscall_64+0xc6/0x1e0
[ 2265.681188][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2265.681188][   T73] 
[ 2265.683188][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2265.683188][   T73]      netdev_get_by_index+0x5e/0x80
[ 2265.683188][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2265.683188][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2265.683188][   T73]      ip6_route_add+0x1c/0x140
[ 2265.683188][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2265.683188][   T73]      addrconf_add_dev+0xe2/0x170
[ 2265.683188][   T73]      inet6_addr_add+0x12f/0xa40
[ 2265.683188][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2265.683188][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2265.683188][   T73]      netlink_rcv_skb+0x130/0x360
[ 2265.683188][   T73]      netlink_unicast+0x449/0x710
[ 2265.683188][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2265.683188][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2265.683188][   T73]      ___sys_sendmsg+0xee/0x170
[ 2265.683188][   T73]      __sys_sendmsg+0xcd/0x170
[ 2265.683188][   T73]      do_syscall_64+0xc6/0x1e0
[ 2265.683188][   T73] 
[ 2265.685139][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2265.685139][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2265.685139][   T73]      ipv6_find_idev+0x102/0x170
[ 2265.685139][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2265.685139][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2265.685139][   T73]      netlink_rcv_skb+0x130/0x360
[ 2265.685139][   T73]      netlink_unicast+0x449/0x710
[ 2265.685139][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2265.685139][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2265.685139][   T73]      ___sys_sendmsg+0xee/0x170
[ 2265.685139][   T73]      __sys_sendmsg+0xcd/0x170
[ 2265.685139][   T73]      do_syscall_64+0xc6/0x1e0
[ 2265.685139][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2265.685139][   T73] 
[ 2265.686670][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2265.686670][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2265.686670][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2265.686670][   T73]      ipv6_find_idev+0x102/0x170
[ 2265.686670][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2265.686670][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2265.686670][   T73]      netlink_rcv_skb+0x130/0x360
[ 2265.686670][   T73]      netlink_unicast+0x449/0x710
[ 2265.686670][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2265.686670][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2265.686670][   T73]      ___sys_sendmsg+0xee/0x170
[ 2265.686670][   T73]      __sys_sendmsg+0xcd/0x170
[ 2265.686670][   T73]      do_syscall_64+0xc6/0x1e0
[ 2265.686670][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2265.686670][   T73] 
[ 2265.688376][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2265.688644][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2265.688644][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2265.688644][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2265.688644][   T73]      fib6_nh_init+0xa22/0x1580
[ 2265.688644][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2265.688644][   T73]      ip6_route_add+0x1c/0x140
[ 2265.688644][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2265.688644][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2265.688644][   T73]      netlink_rcv_skb+0x130/0x360
[ 2265.688644][   T73]      netlink_unicast+0x449/0x710
[ 2265.688644][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2265.688644][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2265.688644][   T73]      ___sys_sendmsg+0xee/0x170
[ 2265.688644][   T73]      __sys_sendmsg+0xcd/0x170
[ 2265.688644][   T73]      do_syscall_64+0xc6/0x1e0
[ 2265.688644][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2265.688644][   T73] 
[ 2265.690629][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2265.690629][   T73]      dst_init+0x84/0x4a0
[ 2265.690629][   T73]      dst_alloc+0x97/0x150
[ 2265.690629][   T73]      ip6_dst_alloc+0x23/0x90
[ 2265.690629][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2265.690629][   T73]      ip6_pol_route+0x56f/0x840
[ 2265.690629][   T73]      fib6_rule_lookup+0x456/0x630
[ 2265.690629][   T73]      ip6_route_input+0x59c/0xa50
[ 2265.690629][   T73]      ipv6_rcv+0x397/0x810
[ 2265.690629][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2265.690629][   T73]      process_backlog+0x101/0x620
[ 2265.690629][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2265.690629][   T73]      net_rx_action+0x495/0xbe0
[ 2265.690629][   T73]      __do_softirq+0x1b5/0x7f6
[ 2265.690629][   T73] 
[ 2265.692440][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2265.692440][   T73]      netdev_get_by_index+0x5e/0x80
[ 2265.692440][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2265.692440][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2265.692440][   T73]      ip6_route_add+0x1c/0x140
[ 2265.692440][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2265.692440][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2265.692440][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2265.692440][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2265.692440][   T73]      netlink_rcv_skb+0x130/0x360
[ 2265.692440][   T73]      netlink_unicast+0x449/0x710
[ 2265.692440][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2265.692440][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2265.692440][   T73]      ___sys_sendmsg+0xee/0x170
[ 2265.692440][   T73]      __sys_sendmsg+0xcd/0x170
[ 2265.692440][   T73]      do_syscall_64+0xc6/0x1e0
[ 2265.692440][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2265.692440][   T73] 
[ 2265.694707][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2265.694707][   T73]      netdev_get_by_index+0x5e/0x80
[ 2265.694707][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2265.694707][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2265.694707][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2265.694707][   T73]      ipv6_add_addr+0x411/0x2000
[ 2265.694707][   T73]      inet6_addr_add+0x30e/0xa40
[ 2265.694707][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2265.694707][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2265.694707][   T73]      netlink_rcv_skb+0x130/0x360
[ 2265.694707][   T73]      netlink_unicast+0x449/0x710
[ 2265.694707][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2265.694707][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2265.694707][   T73]      ___sys_sendmsg+0xee/0x170
[ 2265.694707][   T73]      __sys_sendmsg+0xcd/0x170
[ 2265.694707][   T73]      do_syscall_64+0xc6/0x1e0
[ 2265.694707][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2265.694707][   T73] 
[ 2265.697035][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2265.697035][   T73]      netdev_get_by_index+0x5e/0x80
[ 2265.697035][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2265.697035][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2265.697035][   T73]      ip6_route_add+0x1c/0x140
[ 2265.697035][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2265.697035][   T73]      addrconf_add_dev+0xe2/0x170
[ 2265.697035][   T73]      inet6_addr_add+0x12f/0xa40
[ 2265.697035][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2265.697035][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2265.697035][   T73]      netlink_rcv_skb+0x130/0x360
[ 2265.697035][   T73]      netlink_unicast+0x449/0x710
[ 2265.697035][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2265.697035][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2265.697035][   T73]      ___sys_sendmsg+0xee/0x170
[ 2265.697035][   T73]      __sys_sendmsg+0xcd/0x170
[ 2265.697035][   T73]      do_syscall_64+0xc6/0x1e0
[ 2265.697035][   T73] 
[ 2265.699178][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2265.699178][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2265.699178][   T73]      ipv6_find_idev+0x102/0x170
[ 2265.699178][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2265.699178][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2265.699178][   T73]      netlink_rcv_skb+0x130/0x360
[ 2265.699178][   T73]      netlink_unicast+0x449/0x710
[ 2265.699178][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2265.699178][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2265.699178][   T73]      ___sys_sendmsg+0xee/0x170
[ 2265.699178][   T73]      __sys_sendmsg+0xcd/0x170
[ 2265.699178][   T73]      do_syscall_64+0xc6/0x1e0
[ 2265.699178][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2265.699178][   T73] 
[ 2265.700915][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2265.700915][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2265.700915][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2265.700915][   T73]      ipv6_find_idev+0x102/0x170
[ 2265.700915][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2265.700915][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2265.700915][   T73]      netlink_rcv_skb+0x130/0x360
[ 2265.700915][   T73]      netlink_unicast+0x449/0x710
[ 2265.700915][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2265.700915][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2265.700915][   T73]      ___sys_sendmsg+0xee/0x170
[ 2265.700915][   T73]      __sys_sendmsg+0xcd/0x170
[ 2265.700915][   T73]      do_syscall_64+0xc6/0x1e0
[ 2265.700915][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2265.700915][   T73] 
[ 2265.702793][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2265.703071][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2265.703071][   T73]      netdev_get_by_index+0x5e/0x80
[ 2265.703071][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2265.703071][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2265.703071][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2265.703071][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2265.703071][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2265.703071][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2265.703071][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2265.703071][   T73]      addrconf_dad_begin+0x310/0x670
[ 2265.703071][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2265.703071][   T73]      process_one_work+0x84d/0x18a0
[ 2265.703071][   T73]      worker_thread+0x587/0xd30
[ 2265.703071][   T73]      kthread+0x28a/0x350
[ 2265.703071][   T73]      ret_from_fork+0x31/0x70
[ 2265.703071][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2265.703071][   T73] 
[ 2265.705251][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2265.705251][   T73]      netdev_get_by_index+0x5e/0x80
[ 2265.705251][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2265.705251][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2265.705251][   T73]      ip6_route_add+0x1c/0x140
[ 2265.705251][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2265.705251][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2265.705251][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2265.705251][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2265.705251][   T73]      netlink_rcv_skb+0x130/0x360
[ 2265.705251][   T73]      netlink_unicast+0x449/0x710
[ 2265.705251][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2265.705251][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2265.705251][   T73]      ___sys_sendmsg+0xee/0x170
[ 2265.705251][   T73]      __sys_sendmsg+0xcd/0x170
[ 2265.705251][   T73]      do_syscall_64+0xc6/0x1e0
[ 2265.705251][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2265.705251][   T73] 
[ 2265.707583][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2265.707583][   T73]      netdev_get_by_index+0x5e/0x80
[ 2265.707583][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2265.707583][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2265.707583][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2265.707583][   T73]      ipv6_add_addr+0x411/0x2000
[ 2265.707583][   T73]      inet6_addr_add+0x30e/0xa40
[ 2265.707583][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2265.707583][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2265.707583][   T73]      netlink_rcv_skb+0x130/0x360
[ 2265.707583][   T73]      netlink_unicast+0x449/0x710
[ 2265.707583][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2265.707583][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2265.707583][   T73]      ___sys_sendmsg+0xee/0x170
[ 2265.707583][   T73]      __sys_sendmsg+0xcd/0x170
[ 2265.707583][   T73]      do_syscall_64+0xc6/0x1e0
[ 2265.707583][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2265.707583][   T73] 
[ 2265.710360][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2265.710360][   T73]      netdev_get_by_index+0x5e/0x80
[ 2265.710360][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2265.710360][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2265.710360][   T73]      ip6_route_add+0x1c/0x140
[ 2265.710360][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2265.710360][   T73]      addrconf_add_dev+0xe2/0x170
[ 2265.710360][   T73]      inet6_addr_add+0x12f/0xa40
[ 2265.710360][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2265.710360][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2265.710360][   T73]      netlink_rcv_skb+0x130/0x360
[ 2265.710360][   T73]      netlink_unicast+0x449/0x710
[ 2265.710360][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2265.710360][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2265.710360][   T73]      ___sys_sendmsg+0xee/0x170
[ 2265.710360][   T73]      __sys_sendmsg+0xcd/0x170
[ 2265.710360][   T73]      do_syscall_64+0xc6/0x1e0
[ 2265.710360][   T73] 
[ 2265.712882][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2265.712882][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2265.712882][   T73]      ipv6_find_idev+0x102/0x170
[ 2265.712882][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2265.712882][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2265.712882][   T73]      netlink_rcv_skb+0x130/0x360
[ 2265.712882][   T73]      netlink_unicast+0x449/0x710
[ 2265.712882][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2265.712882][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2265.712882][   T73]      ___sys_sendmsg+0xee/0x170
[ 2265.712882][   T73]      __sys_sendmsg+0xcd/0x170
[ 2265.712882][   T73]      do_syscall_64+0xc6/0x1e0
[ 2265.712882][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2265.712882][   T73] 
[ 2265.714608][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2265.714608][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2265.714608][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2265.714608][   T73]      ipv6_find_idev+0x102/0x170
[ 2265.714608][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2265.714608][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2265.714608][   T73]      netlink_rcv_skb+0x130/0x360
[ 2265.714608][   T73]      netlink_unicast+0x449/0x710
[ 2265.714608][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2265.714608][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2265.714608][   T73]      ___sys_sendmsg+0xee/0x170
[ 2265.714608][   T73]      __sys_sendmsg+0xcd/0x170
[ 2265.714608][   T73]      do_syscall_64+0xc6/0x1e0
[ 2265.714608][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2265.714608][   T73] 
[ 2275.743722][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2275.744180][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2275.744180][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2275.744180][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2275.744180][   T73]      fib6_nh_init+0xa22/0x1580
[ 2275.744180][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2275.744180][   T73]      ip6_route_add+0x1c/0x140
[ 2275.744180][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2275.744180][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2275.744180][   T73]      netlink_rcv_skb+0x130/0x360
[ 2275.744180][   T73]      netlink_unicast+0x449/0x710
[ 2275.744180][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2275.744180][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2275.744180][   T73]      ___sys_sendmsg+0xee/0x170
[ 2275.744180][   T73]      __sys_sendmsg+0xcd/0x170
[ 2275.744180][   T73]      do_syscall_64+0xc6/0x1e0
[ 2275.744180][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2275.744180][   T73] 
[ 2275.746079][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2275.746079][   T73]      dst_init+0x84/0x4a0
[ 2275.746079][   T73]      dst_alloc+0x97/0x150
[ 2275.746079][   T73]      ip6_dst_alloc+0x23/0x90
[ 2275.746079][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2275.746079][   T73]      ip6_pol_route+0x56f/0x840
[ 2275.746079][   T73]      fib6_rule_lookup+0x456/0x630
[ 2275.746079][   T73]      ip6_route_input+0x59c/0xa50
[ 2275.746079][   T73]      ipv6_rcv+0x397/0x810
[ 2275.746079][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2275.746079][   T73]      process_backlog+0x101/0x620
[ 2275.746079][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2275.746079][   T73]      net_rx_action+0x495/0xbe0
[ 2275.746079][   T73]      __do_softirq+0x1b5/0x7f6
[ 2275.746079][   T73] 
[ 2275.747718][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2275.747718][   T73]      netdev_get_by_index+0x5e/0x80
[ 2275.747718][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2275.747718][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2275.747718][   T73]      ip6_route_add+0x1c/0x140
[ 2275.747718][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2275.747718][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2275.747718][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2275.747718][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2275.747718][   T73]      netlink_rcv_skb+0x130/0x360
[ 2275.747718][   T73]      netlink_unicast+0x449/0x710
[ 2275.747718][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2275.747718][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2275.747718][   T73]      ___sys_sendmsg+0xee/0x170
[ 2275.747718][   T73]      __sys_sendmsg+0xcd/0x170
[ 2275.747718][   T73]      do_syscall_64+0xc6/0x1e0
[ 2275.747718][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2275.747718][   T73] 
[ 2275.749712][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2275.749712][   T73]      netdev_get_by_index+0x5e/0x80
[ 2275.749712][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2275.749712][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2275.749712][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2275.749712][   T73]      ipv6_add_addr+0x411/0x2000
[ 2275.749712][   T73]      inet6_addr_add+0x30e/0xa40
[ 2275.749712][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2275.749712][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2275.749712][   T73]      netlink_rcv_skb+0x130/0x360
[ 2275.749712][   T73]      netlink_unicast+0x449/0x710
[ 2275.749712][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2275.749712][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2275.749712][   T73]      ___sys_sendmsg+0xee/0x170
[ 2275.749712][   T73]      __sys_sendmsg+0xcd/0x170
[ 2275.749712][   T73]      do_syscall_64+0xc6/0x1e0
[ 2275.749712][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2275.749712][   T73] 
[ 2275.751703][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2275.751703][   T73]      netdev_get_by_index+0x5e/0x80
[ 2275.751703][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2275.751703][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2275.751703][   T73]      ip6_route_add+0x1c/0x140
[ 2275.751703][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2275.751703][   T73]      addrconf_add_dev+0xe2/0x170
[ 2275.751703][   T73]      inet6_addr_add+0x12f/0xa40
[ 2275.751703][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2275.751703][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2275.751703][   T73]      netlink_rcv_skb+0x130/0x360
[ 2275.751703][   T73]      netlink_unicast+0x449/0x710
[ 2275.751703][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2275.751703][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2275.751703][   T73]      ___sys_sendmsg+0xee/0x170
[ 2275.751703][   T73]      __sys_sendmsg+0xcd/0x170
[ 2275.751703][   T73]      do_syscall_64+0xc6/0x1e0
[ 2275.751703][   T73] 
[ 2275.754044][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2275.754044][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2275.754044][   T73]      ipv6_find_idev+0x102/0x170
[ 2275.754044][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2275.754044][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2275.754044][   T73]      netlink_rcv_skb+0x130/0x360
[ 2275.754044][   T73]      netlink_unicast+0x449/0x710
[ 2275.754044][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2275.754044][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2275.754044][   T73]      ___sys_sendmsg+0xee/0x170
[ 2275.754044][   T73]      __sys_sendmsg+0xcd/0x170
[ 2275.754044][   T73]      do_syscall_64+0xc6/0x1e0
[ 2275.754044][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2275.754044][   T73] 
[ 2275.755588][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2275.755588][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2275.755588][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2275.755588][   T73]      ipv6_find_idev+0x102/0x170
[ 2275.755588][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2275.755588][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2275.755588][   T73]      netlink_rcv_skb+0x130/0x360
[ 2275.755588][   T73]      netlink_unicast+0x449/0x710
[ 2275.755588][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2275.755588][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2275.755588][   T73]      ___sys_sendmsg+0xee/0x170
[ 2275.755588][   T73]      __sys_sendmsg+0xcd/0x170
[ 2275.755588][   T73]      do_syscall_64+0xc6/0x1e0
[ 2275.755588][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2275.755588][   T73] 
[ 2275.757380][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2275.757666][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2275.757666][   T73]      netdev_get_by_index+0x5e/0x80
[ 2275.757666][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2275.757666][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2275.757666][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2275.757666][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2275.757666][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2275.757666][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2275.757666][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2275.757666][   T73]      addrconf_dad_begin+0x310/0x670
[ 2275.757666][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2275.757666][   T73]      process_one_work+0x84d/0x18a0
[ 2275.757666][   T73]      worker_thread+0x587/0xd30
[ 2275.757666][   T73]      kthread+0x28a/0x350
[ 2275.757666][   T73]      ret_from_fork+0x31/0x70
[ 2275.757666][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2275.757666][   T73] 
[ 2275.759568][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2275.759568][   T73]      netdev_get_by_index+0x5e/0x80
[ 2275.759568][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2275.759568][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2275.759568][   T73]      ip6_route_add+0x1c/0x140
[ 2275.759568][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2275.759568][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2275.759568][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2275.759568][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2275.759568][   T73]      netlink_rcv_skb+0x130/0x360
[ 2275.759568][   T73]      netlink_unicast+0x449/0x710
[ 2275.759568][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2275.759568][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2275.759568][   T73]      ___sys_sendmsg+0xee/0x170
[ 2275.759568][   T73]      __sys_sendmsg+0xcd/0x170
[ 2275.759568][   T73]      do_syscall_64+0xc6/0x1e0
[ 2275.759568][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2275.759568][   T73] 
[ 2275.761548][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2275.761548][   T73]      netdev_get_by_index+0x5e/0x80
[ 2275.761548][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2275.761548][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2275.761548][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2275.761548][   T73]      ipv6_add_addr+0x411/0x2000
[ 2275.761548][   T73]      inet6_addr_add+0x30e/0xa40
[ 2275.761548][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2275.761548][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2275.761548][   T73]      netlink_rcv_skb+0x130/0x360
[ 2275.761548][   T73]      netlink_unicast+0x449/0x710
[ 2275.761548][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2275.761548][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2275.761548][   T73]      ___sys_sendmsg+0xee/0x170
[ 2275.761548][   T73]      __sys_sendmsg+0xcd/0x170
[ 2275.761548][   T73]      do_syscall_64+0xc6/0x1e0
[ 2275.761548][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2275.761548][   T73] 
[ 2275.763541][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2275.763541][   T73]      netdev_get_by_index+0x5e/0x80
[ 2275.763541][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2275.763541][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2275.763541][   T73]      ip6_route_add+0x1c/0x140
[ 2275.763541][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2275.763541][   T73]      addrconf_add_dev+0xe2/0x170
[ 2275.763541][   T73]      inet6_addr_add+0x12f/0xa40
[ 2275.763541][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2275.763541][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2275.763541][   T73]      netlink_rcv_skb+0x130/0x360
[ 2275.763541][   T73]      netlink_unicast+0x449/0x710
[ 2275.763541][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2275.763541][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2275.763541][   T73]      ___sys_sendmsg+0xee/0x170
[ 2275.763541][   T73]      __sys_sendmsg+0xcd/0x170
[ 2275.763541][   T73]      do_syscall_64+0xc6/0x1e0
[ 2275.763541][   T73] 
[ 2275.765521][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2275.765521][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2275.765521][   T73]      ipv6_find_idev+0x102/0x170
[ 2275.765521][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2275.765521][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2275.765521][   T73]      netlink_rcv_skb+0x130/0x360
[ 2275.765521][   T73]      netlink_unicast+0x449/0x710
[ 2275.765521][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2275.765521][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2275.765521][   T73]      ___sys_sendmsg+0xee/0x170
[ 2275.765521][   T73]      __sys_sendmsg+0xcd/0x170
[ 2275.765521][   T73]      do_syscall_64+0xc6/0x1e0
[ 2275.765521][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2275.765521][   T73] 
[ 2275.767075][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2275.767075][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2275.767075][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2275.767075][   T73]      ipv6_find_idev+0x102/0x170
[ 2275.767075][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2275.767075][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2275.767075][   T73]      netlink_rcv_skb+0x130/0x360
[ 2275.767075][   T73]      netlink_unicast+0x449/0x710
[ 2275.767075][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2275.767075][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2275.767075][   T73]      ___sys_sendmsg+0xee/0x170
[ 2275.767075][   T73]      __sys_sendmsg+0xcd/0x170
[ 2275.767075][   T73]      do_syscall_64+0xc6/0x1e0
[ 2275.767075][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2275.767075][   T73] 
[ 2275.768759][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2275.769025][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2275.769025][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2275.769025][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2275.769025][   T73]      fib6_nh_init+0xa22/0x1580
[ 2275.769025][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2275.769025][   T73]      ip6_route_add+0x1c/0x140
[ 2275.769025][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2275.769025][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2275.769025][   T73]      netlink_rcv_skb+0x130/0x360
[ 2275.769025][   T73]      netlink_unicast+0x449/0x710
[ 2275.769025][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2275.769025][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2275.769025][   T73]      ___sys_sendmsg+0xee/0x170
[ 2275.769025][   T73]      __sys_sendmsg+0xcd/0x170
[ 2275.769025][   T73]      do_syscall_64+0xc6/0x1e0
[ 2275.769025][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2275.769025][   T73] 
[ 2275.771037][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2275.771037][   T73]      dst_init+0x84/0x4a0
[ 2275.771037][   T73]      dst_alloc+0x97/0x150
[ 2275.771037][   T73]      ip6_dst_alloc+0x23/0x90
[ 2275.771037][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2275.771037][   T73]      ip6_pol_route+0x56f/0x840
[ 2275.771037][   T73]      fib6_rule_lookup+0x456/0x630
[ 2275.771037][   T73]      ip6_route_input+0x59c/0xa50
[ 2275.771037][   T73]      ipv6_rcv+0x397/0x810
[ 2275.771037][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2275.771037][   T73]      process_backlog+0x101/0x620
[ 2275.771037][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2275.771037][   T73]      net_rx_action+0x495/0xbe0
[ 2275.771037][   T73]      __do_softirq+0x1b5/0x7f6
[ 2275.771037][   T73] 
[ 2275.772916][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2275.772916][   T73]      netdev_get_by_index+0x5e/0x80
[ 2275.772916][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2275.772916][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2275.772916][   T73]      ip6_route_add+0x1c/0x140
[ 2275.772916][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2275.772916][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2275.772916][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2275.772916][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2275.772916][   T73]      netlink_rcv_skb+0x130/0x360
[ 2275.772916][   T73]      netlink_unicast+0x449/0x710
[ 2275.772916][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2275.772916][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2275.772916][   T73]      ___sys_sendmsg+0xee/0x170
[ 2275.772916][   T73]      __sys_sendmsg+0xcd/0x170
[ 2275.772916][   T73]      do_syscall_64+0xc6/0x1e0
[ 2275.772916][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2275.772916][   T73] 
[ 2275.775158][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2275.775158][   T73]      netdev_get_by_index+0x5e/0x80
[ 2275.775158][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2275.775158][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2275.775158][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2275.775158][   T73]      ipv6_add_addr+0x411/0x2000
[ 2275.775158][   T73]      inet6_addr_add+0x30e/0xa40
[ 2275.775158][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2275.775158][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2275.775158][   T73]      netlink_rcv_skb+0x130/0x360
[ 2275.775158][   T73]      netlink_unicast+0x449/0x710
[ 2275.775158][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2275.775158][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2275.775158][   T73]      ___sys_sendmsg+0xee/0x170
[ 2275.775158][   T73]      __sys_sendmsg+0xcd/0x170
[ 2275.775158][   T73]      do_syscall_64+0xc6/0x1e0
[ 2275.775158][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2275.775158][   T73] 
[ 2275.777391][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2275.777391][   T73]      netdev_get_by_index+0x5e/0x80
[ 2275.777391][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2275.777391][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2275.777391][   T73]      ip6_route_add+0x1c/0x140
[ 2275.777391][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2275.777391][   T73]      addrconf_add_dev+0xe2/0x170
[ 2275.777391][   T73]      inet6_addr_add+0x12f/0xa40
[ 2275.777391][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2275.777391][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2275.777391][   T73]      netlink_rcv_skb+0x130/0x360
[ 2275.777391][   T73]      netlink_unicast+0x449/0x710
[ 2275.777391][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2275.777391][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2275.777391][   T73]      ___sys_sendmsg+0xee/0x170
[ 2275.777391][   T73]      __sys_sendmsg+0xcd/0x170
[ 2275.777391][   T73]      do_syscall_64+0xc6/0x1e0
[ 2275.777391][   T73] 
[ 2275.779585][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2275.779585][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2275.779585][   T73]      ipv6_find_idev+0x102/0x170
[ 2275.779585][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2275.779585][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2275.779585][   T73]      netlink_rcv_skb+0x130/0x360
[ 2275.779585][   T73]      netlink_unicast+0x449/0x710
[ 2275.779585][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2275.779585][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2275.779585][   T73]      ___sys_sendmsg+0xee/0x170
[ 2275.779585][   T73]      __sys_sendmsg+0xcd/0x170
[ 2275.779585][   T73]      do_syscall_64+0xc6/0x1e0
[ 2275.779585][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2275.779585][   T73] 
[ 2275.781359][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2275.781359][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2275.781359][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2275.781359][   T73]      ipv6_find_idev+0x102/0x170
[ 2275.781359][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2275.781359][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2275.781359][   T73]      netlink_rcv_skb+0x130/0x360
[ 2275.781359][   T73]      netlink_unicast+0x449/0x710
[ 2275.781359][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2275.781359][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2275.781359][   T73]      ___sys_sendmsg+0xee/0x170
[ 2275.781359][   T73]      __sys_sendmsg+0xcd/0x170
[ 2275.781359][   T73]      do_syscall_64+0xc6/0x1e0
[ 2275.781359][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2275.781359][   T73] 
[ 2275.783355][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2275.783629][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2275.783629][   T73]      netdev_get_by_index+0x5e/0x80
[ 2275.783629][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2275.783629][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2275.783629][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2275.783629][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2275.783629][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2275.783629][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2275.783629][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2275.783629][   T73]      addrconf_dad_begin+0x310/0x670
[ 2275.783629][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2275.783629][   T73]      process_one_work+0x84d/0x18a0
[ 2275.783629][   T73]      worker_thread+0x587/0xd30
[ 2275.783629][   T73]      kthread+0x28a/0x350
[ 2275.783629][   T73]      ret_from_fork+0x31/0x70
[ 2275.783629][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2275.783629][   T73] 
[ 2275.785791][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2275.785791][   T73]      netdev_get_by_index+0x5e/0x80
[ 2275.785791][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2275.785791][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2275.785791][   T73]      ip6_route_add+0x1c/0x140
[ 2275.785791][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2275.785791][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2275.785791][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2275.785791][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2275.785791][   T73]      netlink_rcv_skb+0x130/0x360
[ 2275.785791][   T73]      netlink_unicast+0x449/0x710
[ 2275.785791][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2275.785791][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2275.785791][   T73]      ___sys_sendmsg+0xee/0x170
[ 2275.785791][   T73]      __sys_sendmsg+0xcd/0x170
[ 2275.785791][   T73]      do_syscall_64+0xc6/0x1e0
[ 2275.785791][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2275.785791][   T73] 
[ 2275.788014][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2275.788014][   T73]      netdev_get_by_index+0x5e/0x80
[ 2275.788014][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2275.788014][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2275.788014][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2275.788014][   T73]      ipv6_add_addr+0x411/0x2000
[ 2275.788014][   T73]      inet6_addr_add+0x30e/0xa40
[ 2275.788014][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2275.788014][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2275.788014][   T73]      netlink_rcv_skb+0x130/0x360
[ 2275.788014][   T73]      netlink_unicast+0x449/0x710
[ 2275.788014][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2275.788014][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2275.788014][   T73]      ___sys_sendmsg+0xee/0x170
[ 2275.788014][   T73]      __sys_sendmsg+0xcd/0x170
[ 2275.788014][   T73]      do_syscall_64+0xc6/0x1e0
[ 2275.788014][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2275.788014][   T73] 
[ 2275.790252][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2275.790252][   T73]      netdev_get_by_index+0x5e/0x80
[ 2275.790252][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2275.790252][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2275.790252][   T73]      ip6_route_add+0x1c/0x140
[ 2275.790252][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2275.790252][   T73]      addrconf_add_dev+0xe2/0x170
[ 2275.790252][   T73]      inet6_addr_add+0x12f/0xa40
[ 2275.790252][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2275.790252][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2275.790252][   T73]      netlink_rcv_skb+0x130/0x360
[ 2275.790252][   T73]      netlink_unicast+0x449/0x710
[ 2275.790252][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2275.790252][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2275.790252][   T73]      ___sys_sendmsg+0xee/0x170
[ 2275.790252][   T73]      __sys_sendmsg+0xcd/0x170
[ 2275.790252][   T73]      do_syscall_64+0xc6/0x1e0
[ 2275.790252][   T73] 
[ 2275.792468][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2275.792468][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2275.792468][   T73]      ipv6_find_idev+0x102/0x170
[ 2275.792468][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2275.792468][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2275.792468][   T73]      netlink_rcv_skb+0x130/0x360
[ 2275.792468][   T73]      netlink_unicast+0x449/0x710
[ 2275.792468][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2275.792468][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2275.792468][   T73]      ___sys_sendmsg+0xee/0x170
[ 2275.792468][   T73]      __sys_sendmsg+0xcd/0x170
[ 2275.792468][   T73]      do_syscall_64+0xc6/0x1e0
[ 2275.792468][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2275.792468][   T73] 
[ 2275.794192][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2275.794192][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2275.794192][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2275.794192][   T73]      ipv6_find_idev+0x102/0x170
[ 2275.794192][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2275.794192][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2275.794192][   T73]      netlink_rcv_skb+0x130/0x360
[ 2275.794192][   T73]      netlink_unicast+0x449/0x710
[ 2275.794192][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2275.794192][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2275.794192][   T73]      ___sys_sendmsg+0xee/0x170
[ 2275.794192][   T73]      __sys_sendmsg+0xcd/0x170
[ 2275.794192][   T73]      do_syscall_64+0xc6/0x1e0
[ 2275.794192][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2275.794192][   T73] 
[ 2285.847701][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2285.848128][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2285.848128][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2285.848128][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2285.848128][   T73]      fib6_nh_init+0xa22/0x1580
[ 2285.848128][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2285.848128][   T73]      ip6_route_add+0x1c/0x140
[ 2285.848128][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2285.848128][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2285.848128][   T73]      netlink_rcv_skb+0x130/0x360
[ 2285.848128][   T73]      netlink_unicast+0x449/0x710
[ 2285.848128][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2285.848128][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2285.848128][   T73]      ___sys_sendmsg+0xee/0x170
[ 2285.848128][   T73]      __sys_sendmsg+0xcd/0x170
[ 2285.848128][   T73]      do_syscall_64+0xc6/0x1e0
[ 2285.848128][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2285.848128][   T73] 
[ 2285.850106][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2285.850106][   T73]      dst_init+0x84/0x4a0
[ 2285.850106][   T73]      dst_alloc+0x97/0x150
[ 2285.850106][   T73]      ip6_dst_alloc+0x23/0x90
[ 2285.850106][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2285.850106][   T73]      ip6_pol_route+0x56f/0x840
[ 2285.850106][   T73]      fib6_rule_lookup+0x456/0x630
[ 2285.850106][   T73]      ip6_route_input+0x59c/0xa50
[ 2285.850106][   T73]      ipv6_rcv+0x397/0x810
[ 2285.850106][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2285.850106][   T73]      process_backlog+0x101/0x620
[ 2285.850106][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2285.850106][   T73]      net_rx_action+0x495/0xbe0
[ 2285.850106][   T73]      __do_softirq+0x1b5/0x7f6
[ 2285.850106][   T73] 
[ 2285.851731][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2285.851731][   T73]      netdev_get_by_index+0x5e/0x80
[ 2285.851731][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2285.851731][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2285.851731][   T73]      ip6_route_add+0x1c/0x140
[ 2285.851731][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2285.851731][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2285.851731][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2285.851731][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2285.851731][   T73]      netlink_rcv_skb+0x130/0x360
[ 2285.851731][   T73]      netlink_unicast+0x449/0x710
[ 2285.851731][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2285.851731][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2285.851731][   T73]      ___sys_sendmsg+0xee/0x170
[ 2285.851731][   T73]      __sys_sendmsg+0xcd/0x170
[ 2285.851731][   T73]      do_syscall_64+0xc6/0x1e0
[ 2285.851731][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2285.851731][   T73] 
[ 2285.853720][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2285.853720][   T73]      netdev_get_by_index+0x5e/0x80
[ 2285.853720][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2285.853720][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2285.853720][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2285.853720][   T73]      ipv6_add_addr+0x411/0x2000
[ 2285.853720][   T73]      inet6_addr_add+0x30e/0xa40
[ 2285.853720][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2285.853720][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2285.853720][   T73]      netlink_rcv_skb+0x130/0x360
[ 2285.853720][   T73]      netlink_unicast+0x449/0x710
[ 2285.853720][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2285.853720][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2285.853720][   T73]      ___sys_sendmsg+0xee/0x170
[ 2285.853720][   T73]      __sys_sendmsg+0xcd/0x170
[ 2285.853720][   T73]      do_syscall_64+0xc6/0x1e0
[ 2285.853720][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2285.853720][   T73] 
[ 2285.855732][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2285.855732][   T73]      netdev_get_by_index+0x5e/0x80
[ 2285.855732][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2285.855732][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2285.855732][   T73]      ip6_route_add+0x1c/0x140
[ 2285.855732][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2285.855732][   T73]      addrconf_add_dev+0xe2/0x170
[ 2285.855732][   T73]      inet6_addr_add+0x12f/0xa40
[ 2285.855732][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2285.855732][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2285.855732][   T73]      netlink_rcv_skb+0x130/0x360
[ 2285.855732][   T73]      netlink_unicast+0x449/0x710
[ 2285.855732][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2285.855732][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2285.855732][   T73]      ___sys_sendmsg+0xee/0x170
[ 2285.855732][   T73]      __sys_sendmsg+0xcd/0x170
[ 2285.855732][   T73]      do_syscall_64+0xc6/0x1e0
[ 2285.855732][   T73] 
[ 2285.857686][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2285.857686][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2285.857686][   T73]      ipv6_find_idev+0x102/0x170
[ 2285.857686][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2285.857686][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2285.857686][   T73]      netlink_rcv_skb+0x130/0x360
[ 2285.857686][   T73]      netlink_unicast+0x449/0x710
[ 2285.857686][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2285.857686][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2285.857686][   T73]      ___sys_sendmsg+0xee/0x170
[ 2285.857686][   T73]      __sys_sendmsg+0xcd/0x170
[ 2285.857686][   T73]      do_syscall_64+0xc6/0x1e0
[ 2285.857686][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2285.857686][   T73] 
[ 2285.859221][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2285.859221][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2285.859221][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2285.859221][   T73]      ipv6_find_idev+0x102/0x170
[ 2285.859221][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2285.859221][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2285.859221][   T73]      netlink_rcv_skb+0x130/0x360
[ 2285.859221][   T73]      netlink_unicast+0x449/0x710
[ 2285.859221][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2285.859221][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2285.859221][   T73]      ___sys_sendmsg+0xee/0x170
[ 2285.859221][   T73]      __sys_sendmsg+0xcd/0x170
[ 2285.859221][   T73]      do_syscall_64+0xc6/0x1e0
[ 2285.859221][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2285.859221][   T73] 
[ 2285.860909][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2285.861191][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2285.861191][   T73]      netdev_get_by_index+0x5e/0x80
[ 2285.861191][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2285.861191][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2285.861191][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2285.861191][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2285.861191][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2285.861191][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2285.861191][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2285.861191][   T73]      addrconf_dad_begin+0x310/0x670
[ 2285.861191][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2285.861191][   T73]      process_one_work+0x84d/0x18a0
[ 2285.861191][   T73]      worker_thread+0x587/0xd30
[ 2285.861191][   T73]      kthread+0x28a/0x350
[ 2285.861191][   T73]      ret_from_fork+0x31/0x70
[ 2285.861191][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2285.861191][   T73] 
[ 2285.863103][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2285.863103][   T73]      netdev_get_by_index+0x5e/0x80
[ 2285.863103][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2285.863103][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2285.863103][   T73]      ip6_route_add+0x1c/0x140
[ 2285.863103][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2285.863103][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2285.863103][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2285.863103][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2285.863103][   T73]      netlink_rcv_skb+0x130/0x360
[ 2285.863103][   T73]      netlink_unicast+0x449/0x710
[ 2285.863103][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2285.863103][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2285.863103][   T73]      ___sys_sendmsg+0xee/0x170
[ 2285.863103][   T73]      __sys_sendmsg+0xcd/0x170
[ 2285.863103][   T73]      do_syscall_64+0xc6/0x1e0
[ 2285.863103][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2285.863103][   T73] 
[ 2285.865101][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2285.865101][   T73]      netdev_get_by_index+0x5e/0x80
[ 2285.865101][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2285.865101][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2285.865101][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2285.865101][   T73]      ipv6_add_addr+0x411/0x2000
[ 2285.865101][   T73]      inet6_addr_add+0x30e/0xa40
[ 2285.865101][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2285.865101][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2285.865101][   T73]      netlink_rcv_skb+0x130/0x360
[ 2285.865101][   T73]      netlink_unicast+0x449/0x710
[ 2285.865101][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2285.865101][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2285.865101][   T73]      ___sys_sendmsg+0xee/0x170
[ 2285.865101][   T73]      __sys_sendmsg+0xcd/0x170
[ 2285.865101][   T73]      do_syscall_64+0xc6/0x1e0
[ 2285.865101][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2285.865101][   T73] 
[ 2285.867106][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2285.867106][   T73]      netdev_get_by_index+0x5e/0x80
[ 2285.867106][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2285.867106][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2285.867106][   T73]      ip6_route_add+0x1c/0x140
[ 2285.867106][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2285.867106][   T73]      addrconf_add_dev+0xe2/0x170
[ 2285.867106][   T73]      inet6_addr_add+0x12f/0xa40
[ 2285.867106][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2285.867106][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2285.867106][   T73]      netlink_rcv_skb+0x130/0x360
[ 2285.867106][   T73]      netlink_unicast+0x449/0x710
[ 2285.867106][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2285.867106][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2285.867106][   T73]      ___sys_sendmsg+0xee/0x170
[ 2285.867106][   T73]      __sys_sendmsg+0xcd/0x170
[ 2285.867106][   T73]      do_syscall_64+0xc6/0x1e0
[ 2285.867106][   T73] 
[ 2285.869092][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2285.869092][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2285.869092][   T73]      ipv6_find_idev+0x102/0x170
[ 2285.869092][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2285.869092][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2285.869092][   T73]      netlink_rcv_skb+0x130/0x360
[ 2285.869092][   T73]      netlink_unicast+0x449/0x710
[ 2285.869092][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2285.869092][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2285.869092][   T73]      ___sys_sendmsg+0xee/0x170
[ 2285.869092][   T73]      __sys_sendmsg+0xcd/0x170
[ 2285.869092][   T73]      do_syscall_64+0xc6/0x1e0
[ 2285.869092][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2285.869092][   T73] 
[ 2285.870618][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2285.870618][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2285.870618][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2285.870618][   T73]      ipv6_find_idev+0x102/0x170
[ 2285.870618][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2285.870618][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2285.870618][   T73]      netlink_rcv_skb+0x130/0x360
[ 2285.870618][   T73]      netlink_unicast+0x449/0x710
[ 2285.870618][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2285.870618][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2285.870618][   T73]      ___sys_sendmsg+0xee/0x170
[ 2285.870618][   T73]      __sys_sendmsg+0xcd/0x170
[ 2285.870618][   T73]      do_syscall_64+0xc6/0x1e0
[ 2285.870618][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2285.870618][   T73] 
[ 2285.872296][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2285.872561][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2285.872561][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2285.872561][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2285.872561][   T73]      fib6_nh_init+0xa22/0x1580
[ 2285.872561][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2285.872561][   T73]      ip6_route_add+0x1c/0x140
[ 2285.872561][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2285.872561][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2285.872561][   T73]      netlink_rcv_skb+0x130/0x360
[ 2285.872561][   T73]      netlink_unicast+0x449/0x710
[ 2285.872561][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2285.872561][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2285.872561][   T73]      ___sys_sendmsg+0xee/0x170
[ 2285.872561][   T73]      __sys_sendmsg+0xcd/0x170
[ 2285.872561][   T73]      do_syscall_64+0xc6/0x1e0
[ 2285.872561][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2285.872561][   T73] 
[ 2285.874562][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2285.874562][   T73]      dst_init+0x84/0x4a0
[ 2285.874562][   T73]      dst_alloc+0x97/0x150
[ 2285.874562][   T73]      ip6_dst_alloc+0x23/0x90
[ 2285.874562][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2285.874562][   T73]      ip6_pol_route+0x56f/0x840
[ 2285.874562][   T73]      fib6_rule_lookup+0x456/0x630
[ 2285.874562][   T73]      ip6_route_input+0x59c/0xa50
[ 2285.874562][   T73]      ipv6_rcv+0x397/0x810
[ 2285.874562][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2285.874562][   T73]      process_backlog+0x101/0x620
[ 2285.874562][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2285.874562][   T73]      net_rx_action+0x495/0xbe0
[ 2285.874562][   T73]      __do_softirq+0x1b5/0x7f6
[ 2285.874562][   T73] 
[ 2285.876368][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2285.876368][   T73]      netdev_get_by_index+0x5e/0x80
[ 2285.876368][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2285.876368][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2285.876368][   T73]      ip6_route_add+0x1c/0x140
[ 2285.876368][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2285.876368][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2285.876368][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2285.876368][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2285.876368][   T73]      netlink_rcv_skb+0x130/0x360
[ 2285.876368][   T73]      netlink_unicast+0x449/0x710
[ 2285.876368][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2285.876368][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2285.876368][   T73]      ___sys_sendmsg+0xee/0x170
[ 2285.876368][   T73]      __sys_sendmsg+0xcd/0x170
[ 2285.876368][   T73]      do_syscall_64+0xc6/0x1e0
[ 2285.876368][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2285.876368][   T73] 
[ 2285.878613][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2285.878613][   T73]      netdev_get_by_index+0x5e/0x80
[ 2285.878613][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2285.878613][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2285.878613][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2285.878613][   T73]      ipv6_add_addr+0x411/0x2000
[ 2285.878613][   T73]      inet6_addr_add+0x30e/0xa40
[ 2285.878613][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2285.878613][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2285.878613][   T73]      netlink_rcv_skb+0x130/0x360
[ 2285.878613][   T73]      netlink_unicast+0x449/0x710
[ 2285.878613][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2285.878613][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2285.878613][   T73]      ___sys_sendmsg+0xee/0x170
[ 2285.878613][   T73]      __sys_sendmsg+0xcd/0x170
[ 2285.878613][   T73]      do_syscall_64+0xc6/0x1e0
[ 2285.878613][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2285.878613][   T73] 
[ 2285.880899][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2285.880899][   T73]      netdev_get_by_index+0x5e/0x80
[ 2285.880899][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2285.880899][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2285.880899][   T73]      ip6_route_add+0x1c/0x140
[ 2285.880899][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2285.880899][   T73]      addrconf_add_dev+0xe2/0x170
[ 2285.880899][   T73]      inet6_addr_add+0x12f/0xa40
[ 2285.880899][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2285.880899][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2285.880899][   T73]      netlink_rcv_skb+0x130/0x360
[ 2285.880899][   T73]      netlink_unicast+0x449/0x710
[ 2285.880899][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2285.880899][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2285.880899][   T73]      ___sys_sendmsg+0xee/0x170
[ 2285.880899][   T73]      __sys_sendmsg+0xcd/0x170
[ 2285.880899][   T73]      do_syscall_64+0xc6/0x1e0
[ 2285.880899][   T73] 
[ 2285.883032][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2285.883032][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2285.883032][   T73]      ipv6_find_idev+0x102/0x170
[ 2285.883032][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2285.883032][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2285.883032][   T73]      netlink_rcv_skb+0x130/0x360
[ 2285.883032][   T73]      netlink_unicast+0x449/0x710
[ 2285.883032][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2285.883032][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2285.883032][   T73]      ___sys_sendmsg+0xee/0x170
[ 2285.883032][   T73]      __sys_sendmsg+0xcd/0x170
[ 2285.883032][   T73]      do_syscall_64+0xc6/0x1e0
[ 2285.883032][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2285.883032][   T73] 
[ 2285.884742][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2285.884742][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2285.884742][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2285.884742][   T73]      ipv6_find_idev+0x102/0x170
[ 2285.884742][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2285.884742][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2285.884742][   T73]      netlink_rcv_skb+0x130/0x360
[ 2285.884742][   T73]      netlink_unicast+0x449/0x710
[ 2285.884742][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2285.884742][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2285.884742][   T73]      ___sys_sendmsg+0xee/0x170
[ 2285.884742][   T73]      __sys_sendmsg+0xcd/0x170
[ 2285.884742][   T73]      do_syscall_64+0xc6/0x1e0
[ 2285.884742][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2285.884742][   T73] 
[ 2285.886591][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2285.887294][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2285.887294][   T73]      netdev_get_by_index+0x5e/0x80
[ 2285.887294][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2285.887294][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2285.887294][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2285.887294][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2285.887294][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2285.887294][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2285.887294][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2285.887294][   T73]      addrconf_dad_begin+0x310/0x670
[ 2285.887294][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2285.887294][   T73]      process_one_work+0x84d/0x18a0
[ 2285.887294][   T73]      worker_thread+0x587/0xd30
[ 2285.887294][   T73]      kthread+0x28a/0x350
[ 2285.887294][   T73]      ret_from_fork+0x31/0x70
[ 2285.887294][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2285.887294][   T73] 
[ 2285.889204][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2285.889204][   T73]      netdev_get_by_index+0x5e/0x80
[ 2285.889204][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2285.889204][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2285.889204][   T73]      ip6_route_add+0x1c/0x140
[ 2285.889204][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2285.889204][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2285.889204][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2285.889204][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2285.889204][   T73]      netlink_rcv_skb+0x130/0x360
[ 2285.889204][   T73]      netlink_unicast+0x449/0x710
[ 2285.889204][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2285.889204][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2285.889204][   T73]      ___sys_sendmsg+0xee/0x170
[ 2285.889204][   T73]      __sys_sendmsg+0xcd/0x170
[ 2285.889204][   T73]      do_syscall_64+0xc6/0x1e0
[ 2285.889204][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2285.889204][   T73] 
[ 2285.891305][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2285.891305][   T73]      netdev_get_by_index+0x5e/0x80
[ 2285.891305][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2285.891305][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2285.891305][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2285.891305][   T73]      ipv6_add_addr+0x411/0x2000
[ 2285.891305][   T73]      inet6_addr_add+0x30e/0xa40
[ 2285.891305][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2285.891305][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2285.891305][   T73]      netlink_rcv_skb+0x130/0x360
[ 2285.891305][   T73]      netlink_unicast+0x449/0x710
[ 2285.891305][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2285.891305][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2285.891305][   T73]      ___sys_sendmsg+0xee/0x170
[ 2285.891305][   T73]      __sys_sendmsg+0xcd/0x170
[ 2285.891305][   T73]      do_syscall_64+0xc6/0x1e0
[ 2285.891305][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2285.891305][   T73] 
[ 2285.893602][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2285.893602][   T73]      netdev_get_by_index+0x5e/0x80
[ 2285.893602][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2285.893602][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2285.893602][   T73]      ip6_route_add+0x1c/0x140
[ 2285.893602][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2285.893602][   T73]      addrconf_add_dev+0xe2/0x170
[ 2285.893602][   T73]      inet6_addr_add+0x12f/0xa40
[ 2285.893602][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2285.893602][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2285.893602][   T73]      netlink_rcv_skb+0x130/0x360
[ 2285.893602][   T73]      netlink_unicast+0x449/0x710
[ 2285.893602][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2285.893602][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2285.893602][   T73]      ___sys_sendmsg+0xee/0x170
[ 2285.893602][   T73]      __sys_sendmsg+0xcd/0x170
[ 2285.893602][   T73]      do_syscall_64+0xc6/0x1e0
[ 2285.893602][   T73] 
[ 2285.895749][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2285.895749][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2285.895749][   T73]      ipv6_find_idev+0x102/0x170
[ 2285.895749][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2285.895749][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2285.895749][   T73]      netlink_rcv_skb+0x130/0x360
[ 2285.895749][   T73]      netlink_unicast+0x449/0x710
[ 2285.895749][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2285.895749][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2285.895749][   T73]      ___sys_sendmsg+0xee/0x170
[ 2285.895749][   T73]      __sys_sendmsg+0xcd/0x170
[ 2285.895749][   T73]      do_syscall_64+0xc6/0x1e0
[ 2285.895749][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2285.895749][   T73] 
[ 2285.897468][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2285.897468][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2285.897468][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2285.897468][   T73]      ipv6_find_idev+0x102/0x170
[ 2285.897468][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2285.897468][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2285.897468][   T73]      netlink_rcv_skb+0x130/0x360
[ 2285.897468][   T73]      netlink_unicast+0x449/0x710
[ 2285.897468][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2285.897468][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2285.897468][   T73]      ___sys_sendmsg+0xee/0x170
[ 2285.897468][   T73]      __sys_sendmsg+0xcd/0x170
[ 2285.897468][   T73]      do_syscall_64+0xc6/0x1e0
[ 2285.897468][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2285.897468][   T73] 
[ 2296.135821][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2296.136265][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2296.136265][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2296.136265][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2296.136265][   T73]      fib6_nh_init+0xa22/0x1580
[ 2296.136265][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2296.136265][   T73]      ip6_route_add+0x1c/0x140
[ 2296.136265][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2296.136265][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2296.136265][   T73]      netlink_rcv_skb+0x130/0x360
[ 2296.136265][   T73]      netlink_unicast+0x449/0x710
[ 2296.136265][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2296.136265][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2296.136265][   T73]      ___sys_sendmsg+0xee/0x170
[ 2296.136265][   T73]      __sys_sendmsg+0xcd/0x170
[ 2296.136265][   T73]      do_syscall_64+0xc6/0x1e0
[ 2296.136265][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2296.136265][   T73] 
[ 2296.138147][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2296.138147][   T73]      dst_init+0x84/0x4a0
[ 2296.138147][   T73]      dst_alloc+0x97/0x150
[ 2296.138147][   T73]      ip6_dst_alloc+0x23/0x90
[ 2296.138147][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2296.138147][   T73]      ip6_pol_route+0x56f/0x840
[ 2296.138147][   T73]      fib6_rule_lookup+0x456/0x630
[ 2296.138147][   T73]      ip6_route_input+0x59c/0xa50
[ 2296.138147][   T73]      ipv6_rcv+0x397/0x810
[ 2296.138147][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2296.138147][   T73]      process_backlog+0x101/0x620
[ 2296.138147][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2296.138147][   T73]      net_rx_action+0x495/0xbe0
[ 2296.138147][   T73]      __do_softirq+0x1b5/0x7f6
[ 2296.138147][   T73] 
[ 2296.139780][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2296.139780][   T73]      netdev_get_by_index+0x5e/0x80
[ 2296.139780][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2296.139780][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2296.139780][   T73]      ip6_route_add+0x1c/0x140
[ 2296.139780][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2296.139780][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2296.139780][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2296.139780][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2296.139780][   T73]      netlink_rcv_skb+0x130/0x360
[ 2296.139780][   T73]      netlink_unicast+0x449/0x710
[ 2296.139780][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2296.139780][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2296.139780][   T73]      ___sys_sendmsg+0xee/0x170
[ 2296.139780][   T73]      __sys_sendmsg+0xcd/0x170
[ 2296.139780][   T73]      do_syscall_64+0xc6/0x1e0
[ 2296.139780][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2296.139780][   T73] 
[ 2296.141766][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2296.141766][   T73]      netdev_get_by_index+0x5e/0x80
[ 2296.141766][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2296.141766][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2296.141766][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2296.141766][   T73]      ipv6_add_addr+0x411/0x2000
[ 2296.141766][   T73]      inet6_addr_add+0x30e/0xa40
[ 2296.141766][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2296.141766][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2296.141766][   T73]      netlink_rcv_skb+0x130/0x360
[ 2296.141766][   T73]      netlink_unicast+0x449/0x710
[ 2296.141766][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2296.141766][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2296.141766][   T73]      ___sys_sendmsg+0xee/0x170
[ 2296.141766][   T73]      __sys_sendmsg+0xcd/0x170
[ 2296.141766][   T73]      do_syscall_64+0xc6/0x1e0
[ 2296.141766][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2296.141766][   T73] 
[ 2296.143756][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2296.143756][   T73]      netdev_get_by_index+0x5e/0x80
[ 2296.143756][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2296.143756][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2296.143756][   T73]      ip6_route_add+0x1c/0x140
[ 2296.143756][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2296.143756][   T73]      addrconf_add_dev+0xe2/0x170
[ 2296.143756][   T73]      inet6_addr_add+0x12f/0xa40
[ 2296.143756][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2296.143756][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2296.143756][   T73]      netlink_rcv_skb+0x130/0x360
[ 2296.143756][   T73]      netlink_unicast+0x449/0x710
[ 2296.143756][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2296.143756][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2296.143756][   T73]      ___sys_sendmsg+0xee/0x170
[ 2296.143756][   T73]      __sys_sendmsg+0xcd/0x170
[ 2296.143756][   T73]      do_syscall_64+0xc6/0x1e0
[ 2296.143756][   T73] 
[ 2296.145725][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2296.145725][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2296.145725][   T73]      ipv6_find_idev+0x102/0x170
[ 2296.145725][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2296.145725][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2296.145725][   T73]      netlink_rcv_skb+0x130/0x360
[ 2296.145725][   T73]      netlink_unicast+0x449/0x710
[ 2296.145725][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2296.145725][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2296.145725][   T73]      ___sys_sendmsg+0xee/0x170
[ 2296.145725][   T73]      __sys_sendmsg+0xcd/0x170
[ 2296.145725][   T73]      do_syscall_64+0xc6/0x1e0
[ 2296.145725][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2296.145725][   T73] 
[ 2296.147268][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2296.147268][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2296.147268][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2296.147268][   T73]      ipv6_find_idev+0x102/0x170
[ 2296.147268][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2296.147268][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2296.147268][   T73]      netlink_rcv_skb+0x130/0x360
[ 2296.147268][   T73]      netlink_unicast+0x449/0x710
[ 2296.147268][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2296.147268][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2296.147268][   T73]      ___sys_sendmsg+0xee/0x170
[ 2296.147268][   T73]      __sys_sendmsg+0xcd/0x170
[ 2296.147268][   T73]      do_syscall_64+0xc6/0x1e0
[ 2296.147268][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2296.147268][   T73] 
[ 2296.148962][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2296.149254][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2296.149254][   T73]      netdev_get_by_index+0x5e/0x80
[ 2296.149254][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2296.149254][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2296.149254][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2296.149254][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2296.149254][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2296.149254][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2296.149254][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2296.149254][   T73]      addrconf_dad_begin+0x310/0x670
[ 2296.149254][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2296.149254][   T73]      process_one_work+0x84d/0x18a0
[ 2296.149254][   T73]      worker_thread+0x587/0xd30
[ 2296.149254][   T73]      kthread+0x28a/0x350
[ 2296.149254][   T73]      ret_from_fork+0x31/0x70
[ 2296.149254][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2296.149254][   T73] 
[ 2296.151157][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2296.151157][   T73]      netdev_get_by_index+0x5e/0x80
[ 2296.151157][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2296.151157][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2296.151157][   T73]      ip6_route_add+0x1c/0x140
[ 2296.151157][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2296.151157][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2296.151157][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2296.151157][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2296.151157][   T73]      netlink_rcv_skb+0x130/0x360
[ 2296.151157][   T73]      netlink_unicast+0x449/0x710
[ 2296.151157][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2296.151157][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2296.151157][   T73]      ___sys_sendmsg+0xee/0x170
[ 2296.151157][   T73]      __sys_sendmsg+0xcd/0x170
[ 2296.151157][   T73]      do_syscall_64+0xc6/0x1e0
[ 2296.151157][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2296.151157][   T73] 
[ 2296.153145][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2296.153145][   T73]      netdev_get_by_index+0x5e/0x80
[ 2296.153145][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2296.153145][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2296.153145][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2296.153145][   T73]      ipv6_add_addr+0x411/0x2000
[ 2296.153145][   T73]      inet6_addr_add+0x30e/0xa40
[ 2296.153145][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2296.153145][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2296.153145][   T73]      netlink_rcv_skb+0x130/0x360
[ 2296.153145][   T73]      netlink_unicast+0x449/0x710
[ 2296.153145][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2296.153145][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2296.153145][   T73]      ___sys_sendmsg+0xee/0x170
[ 2296.153145][   T73]      __sys_sendmsg+0xcd/0x170
[ 2296.153145][   T73]      do_syscall_64+0xc6/0x1e0
[ 2296.153145][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2296.153145][   T73] 
[ 2296.155135][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2296.155135][   T73]      netdev_get_by_index+0x5e/0x80
[ 2296.155135][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2296.155135][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2296.155135][   T73]      ip6_route_add+0x1c/0x140
[ 2296.155135][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2296.155135][   T73]      addrconf_add_dev+0xe2/0x170
[ 2296.155135][   T73]      inet6_addr_add+0x12f/0xa40
[ 2296.155135][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2296.155135][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2296.155135][   T73]      netlink_rcv_skb+0x130/0x360
[ 2296.155135][   T73]      netlink_unicast+0x449/0x710
[ 2296.155135][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2296.155135][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2296.155135][   T73]      ___sys_sendmsg+0xee/0x170
[ 2296.155135][   T73]      __sys_sendmsg+0xcd/0x170
[ 2296.155135][   T73]      do_syscall_64+0xc6/0x1e0
[ 2296.155135][   T73] 
[ 2296.157080][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2296.157080][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2296.157080][   T73]      ipv6_find_idev+0x102/0x170
[ 2296.157080][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2296.157080][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2296.157080][   T73]      netlink_rcv_skb+0x130/0x360
[ 2296.157080][   T73]      netlink_unicast+0x449/0x710
[ 2296.157080][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2296.157080][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2296.157080][   T73]      ___sys_sendmsg+0xee/0x170
[ 2296.157080][   T73]      __sys_sendmsg+0xcd/0x170
[ 2296.157080][   T73]      do_syscall_64+0xc6/0x1e0
[ 2296.157080][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2296.157080][   T73] 
[ 2296.158606][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2296.158606][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2296.158606][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2296.158606][   T73]      ipv6_find_idev+0x102/0x170
[ 2296.158606][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2296.158606][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2296.158606][   T73]      netlink_rcv_skb+0x130/0x360
[ 2296.158606][   T73]      netlink_unicast+0x449/0x710
[ 2296.158606][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2296.158606][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2296.158606][   T73]      ___sys_sendmsg+0xee/0x170
[ 2296.158606][   T73]      __sys_sendmsg+0xcd/0x170
[ 2296.158606][   T73]      do_syscall_64+0xc6/0x1e0
[ 2296.158606][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2296.158606][   T73] 
[ 2296.160274][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2296.160547][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2296.160547][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2296.160547][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2296.160547][   T73]      fib6_nh_init+0xa22/0x1580
[ 2296.160547][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2296.160547][   T73]      ip6_route_add+0x1c/0x140
[ 2296.160547][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2296.160547][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2296.160547][   T73]      netlink_rcv_skb+0x130/0x360
[ 2296.160547][   T73]      netlink_unicast+0x449/0x710
[ 2296.160547][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2296.160547][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2296.160547][   T73]      ___sys_sendmsg+0xee/0x170
[ 2296.160547][   T73]      __sys_sendmsg+0xcd/0x170
[ 2296.160547][   T73]      do_syscall_64+0xc6/0x1e0
[ 2296.160547][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2296.160547][   T73] 
[ 2296.162605][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2296.162605][   T73]      dst_init+0x84/0x4a0
[ 2296.162605][   T73]      dst_alloc+0x97/0x150
[ 2296.162605][   T73]      ip6_dst_alloc+0x23/0x90
[ 2296.162605][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2296.162605][   T73]      ip6_pol_route+0x56f/0x840
[ 2296.162605][   T73]      fib6_rule_lookup+0x456/0x630
[ 2296.162605][   T73]      ip6_route_input+0x59c/0xa50
[ 2296.162605][   T73]      ipv6_rcv+0x397/0x810
[ 2296.162605][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2296.162605][   T73]      process_backlog+0x101/0x620
[ 2296.162605][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2296.162605][   T73]      net_rx_action+0x495/0xbe0
[ 2296.162605][   T73]      __do_softirq+0x1b5/0x7f6
[ 2296.162605][   T73] 
[ 2296.164445][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2296.164445][   T73]      netdev_get_by_index+0x5e/0x80
[ 2296.164445][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2296.164445][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2296.164445][   T73]      ip6_route_add+0x1c/0x140
[ 2296.164445][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2296.164445][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2296.164445][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2296.164445][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2296.164445][   T73]      netlink_rcv_skb+0x130/0x360
[ 2296.164445][   T73]      netlink_unicast+0x449/0x710
[ 2296.164445][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2296.164445][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2296.164445][   T73]      ___sys_sendmsg+0xee/0x170
[ 2296.164445][   T73]      __sys_sendmsg+0xcd/0x170
[ 2296.164445][   T73]      do_syscall_64+0xc6/0x1e0
[ 2296.164445][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2296.164445][   T73] 
[ 2296.166737][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2296.166737][   T73]      netdev_get_by_index+0x5e/0x80
[ 2296.166737][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2296.166737][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2296.166737][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2296.166737][   T73]      ipv6_add_addr+0x411/0x2000
[ 2296.166737][   T73]      inet6_addr_add+0x30e/0xa40
[ 2296.166737][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2296.166737][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2296.166737][   T73]      netlink_rcv_skb+0x130/0x360
[ 2296.166737][   T73]      netlink_unicast+0x449/0x710
[ 2296.166737][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2296.166737][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2296.166737][   T73]      ___sys_sendmsg+0xee/0x170
[ 2296.166737][   T73]      __sys_sendmsg+0xcd/0x170
[ 2296.166737][   T73]      do_syscall_64+0xc6/0x1e0
[ 2296.166737][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2296.166737][   T73] 
[ 2296.168990][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2296.168990][   T73]      netdev_get_by_index+0x5e/0x80
[ 2296.168990][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2296.168990][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2296.168990][   T73]      ip6_route_add+0x1c/0x140
[ 2296.168990][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2296.168990][   T73]      addrconf_add_dev+0xe2/0x170
[ 2296.168990][   T73]      inet6_addr_add+0x12f/0xa40
[ 2296.168990][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2296.168990][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2296.168990][   T73]      netlink_rcv_skb+0x130/0x360
[ 2296.168990][   T73]      netlink_unicast+0x449/0x710
[ 2296.168990][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2296.168990][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2296.168990][   T73]      ___sys_sendmsg+0xee/0x170
[ 2296.168990][   T73]      __sys_sendmsg+0xcd/0x170
[ 2296.168990][   T73]      do_syscall_64+0xc6/0x1e0
[ 2296.168990][   T73] 
[ 2296.171120][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2296.171120][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2296.171120][   T73]      ipv6_find_idev+0x102/0x170
[ 2296.171120][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2296.171120][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2296.171120][   T73]      netlink_rcv_skb+0x130/0x360
[ 2296.171120][   T73]      netlink_unicast+0x449/0x710
[ 2296.171120][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2296.171120][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2296.171120][   T73]      ___sys_sendmsg+0xee/0x170
[ 2296.171120][   T73]      __sys_sendmsg+0xcd/0x170
[ 2296.171120][   T73]      do_syscall_64+0xc6/0x1e0
[ 2296.171120][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2296.171120][   T73] 
[ 2296.172834][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2296.172834][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2296.172834][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2296.172834][   T73]      ipv6_find_idev+0x102/0x170
[ 2296.172834][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2296.172834][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2296.172834][   T73]      netlink_rcv_skb+0x130/0x360
[ 2296.172834][   T73]      netlink_unicast+0x449/0x710
[ 2296.172834][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2296.172834][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2296.172834][   T73]      ___sys_sendmsg+0xee/0x170
[ 2296.172834][   T73]      __sys_sendmsg+0xcd/0x170
[ 2296.172834][   T73]      do_syscall_64+0xc6/0x1e0
[ 2296.172834][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2296.172834][   T73] 
[ 2296.174760][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2296.175033][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2296.175033][   T73]      netdev_get_by_index+0x5e/0x80
[ 2296.175033][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2296.175033][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2296.175033][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2296.175033][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2296.175033][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2296.175033][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2296.175033][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2296.175033][   T73]      addrconf_dad_begin+0x310/0x670
[ 2296.175033][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2296.175033][   T73]      process_one_work+0x84d/0x18a0
[ 2296.175033][   T73]      worker_thread+0x587/0xd30
[ 2296.175033][   T73]      kthread+0x28a/0x350
[ 2296.175033][   T73]      ret_from_fork+0x31/0x70
[ 2296.175033][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2296.175033][   T73] 
[ 2296.177236][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2296.177236][   T73]      netdev_get_by_index+0x5e/0x80
[ 2296.177236][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2296.177236][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2296.177236][   T73]      ip6_route_add+0x1c/0x140
[ 2296.177236][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2296.177236][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2296.177236][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2296.177236][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2296.177236][   T73]      netlink_rcv_skb+0x130/0x360
[ 2296.177236][   T73]      netlink_unicast+0x449/0x710
[ 2296.177236][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2296.177236][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2296.177236][   T73]      ___sys_sendmsg+0xee/0x170
[ 2296.177236][   T73]      __sys_sendmsg+0xcd/0x170
[ 2296.177236][   T73]      do_syscall_64+0xc6/0x1e0
[ 2296.177236][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2296.177236][   T73] 
[ 2296.179407][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2296.179407][   T73]      netdev_get_by_index+0x5e/0x80
[ 2296.179407][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2296.179407][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2296.179407][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2296.179407][   T73]      ipv6_add_addr+0x411/0x2000
[ 2296.179407][   T73]      inet6_addr_add+0x30e/0xa40
[ 2296.179407][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2296.179407][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2296.179407][   T73]      netlink_rcv_skb+0x130/0x360
[ 2296.179407][   T73]      netlink_unicast+0x449/0x710
[ 2296.179407][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2296.179407][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2296.179407][   T73]      ___sys_sendmsg+0xee/0x170
[ 2296.179407][   T73]      __sys_sendmsg+0xcd/0x170
[ 2296.179407][   T73]      do_syscall_64+0xc6/0x1e0
[ 2296.179407][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2296.179407][   T73] 
[ 2296.181637][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2296.181637][   T73]      netdev_get_by_index+0x5e/0x80
[ 2296.181637][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2296.181637][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2296.181637][   T73]      ip6_route_add+0x1c/0x140
[ 2296.181637][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2296.181637][   T73]      addrconf_add_dev+0xe2/0x170
[ 2296.181637][   T73]      inet6_addr_add+0x12f/0xa40
[ 2296.181637][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2296.181637][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2296.181637][   T73]      netlink_rcv_skb+0x130/0x360
[ 2296.181637][   T73]      netlink_unicast+0x449/0x710
[ 2296.181637][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2296.181637][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2296.181637][   T73]      ___sys_sendmsg+0xee/0x170
[ 2296.181637][   T73]      __sys_sendmsg+0xcd/0x170
[ 2296.181637][   T73]      do_syscall_64+0xc6/0x1e0
[ 2296.181637][   T73] 
[ 2296.183833][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2296.183833][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2296.183833][   T73]      ipv6_find_idev+0x102/0x170
[ 2296.183833][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2296.183833][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2296.183833][   T73]      netlink_rcv_skb+0x130/0x360
[ 2296.183833][   T73]      netlink_unicast+0x449/0x710
[ 2296.183833][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2296.183833][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2296.183833][   T73]      ___sys_sendmsg+0xee/0x170
[ 2296.183833][   T73]      __sys_sendmsg+0xcd/0x170
[ 2296.183833][   T73]      do_syscall_64+0xc6/0x1e0
[ 2296.183833][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2296.183833][   T73] 
[ 2296.185620][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2296.185620][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2296.185620][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2296.185620][   T73]      ipv6_find_idev+0x102/0x170
[ 2296.185620][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2296.185620][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2296.185620][   T73]      netlink_rcv_skb+0x130/0x360
[ 2296.185620][   T73]      netlink_unicast+0x449/0x710
[ 2296.185620][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2296.185620][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2296.185620][   T73]      ___sys_sendmsg+0xee/0x170
[ 2296.185620][   T73]      __sys_sendmsg+0xcd/0x170
[ 2296.185620][   T73]      do_syscall_64+0xc6/0x1e0
[ 2296.185620][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2296.185620][   T73] 
[ 2306.423751][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2306.424188][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2306.424188][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2306.424188][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2306.424188][   T73]      fib6_nh_init+0xa22/0x1580
[ 2306.424188][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2306.424188][   T73]      ip6_route_add+0x1c/0x140
[ 2306.424188][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2306.424188][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2306.424188][   T73]      netlink_rcv_skb+0x130/0x360
[ 2306.424188][   T73]      netlink_unicast+0x449/0x710
[ 2306.424188][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2306.424188][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2306.424188][   T73]      ___sys_sendmsg+0xee/0x170
[ 2306.424188][   T73]      __sys_sendmsg+0xcd/0x170
[ 2306.424188][   T73]      do_syscall_64+0xc6/0x1e0
[ 2306.424188][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2306.424188][   T73] 
[ 2306.426109][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2306.426109][   T73]      dst_init+0x84/0x4a0
[ 2306.426109][   T73]      dst_alloc+0x97/0x150
[ 2306.426109][   T73]      ip6_dst_alloc+0x23/0x90
[ 2306.426109][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2306.426109][   T73]      ip6_pol_route+0x56f/0x840
[ 2306.426109][   T73]      fib6_rule_lookup+0x456/0x630
[ 2306.426109][   T73]      ip6_route_input+0x59c/0xa50
[ 2306.426109][   T73]      ipv6_rcv+0x397/0x810
[ 2306.426109][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2306.426109][   T73]      process_backlog+0x101/0x620
[ 2306.426109][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2306.426109][   T73]      net_rx_action+0x495/0xbe0
[ 2306.426109][   T73]      __do_softirq+0x1b5/0x7f6
[ 2306.426109][   T73] 
[ 2306.427762][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2306.427762][   T73]      netdev_get_by_index+0x5e/0x80
[ 2306.427762][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2306.427762][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2306.427762][   T73]      ip6_route_add+0x1c/0x140
[ 2306.427762][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2306.427762][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2306.427762][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2306.427762][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2306.427762][   T73]      netlink_rcv_skb+0x130/0x360
[ 2306.427762][   T73]      netlink_unicast+0x449/0x710
[ 2306.427762][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2306.427762][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2306.427762][   T73]      ___sys_sendmsg+0xee/0x170
[ 2306.427762][   T73]      __sys_sendmsg+0xcd/0x170
[ 2306.427762][   T73]      do_syscall_64+0xc6/0x1e0
[ 2306.427762][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2306.427762][   T73] 
[ 2306.430499][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2306.430499][   T73]      netdev_get_by_index+0x5e/0x80
[ 2306.430499][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2306.430499][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2306.430499][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2306.430499][   T73]      ipv6_add_addr+0x411/0x2000
[ 2306.430499][   T73]      inet6_addr_add+0x30e/0xa40
[ 2306.430499][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2306.430499][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2306.430499][   T73]      netlink_rcv_skb+0x130/0x360
[ 2306.430499][   T73]      netlink_unicast+0x449/0x710
[ 2306.430499][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2306.430499][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2306.430499][   T73]      ___sys_sendmsg+0xee/0x170
[ 2306.430499][   T73]      __sys_sendmsg+0xcd/0x170
[ 2306.430499][   T73]      do_syscall_64+0xc6/0x1e0
[ 2306.430499][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2306.430499][   T73] 
[ 2306.432493][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2306.432493][   T73]      netdev_get_by_index+0x5e/0x80
[ 2306.432493][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2306.432493][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2306.432493][   T73]      ip6_route_add+0x1c/0x140
[ 2306.432493][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2306.432493][   T73]      addrconf_add_dev+0xe2/0x170
[ 2306.432493][   T73]      inet6_addr_add+0x12f/0xa40
[ 2306.432493][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2306.432493][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2306.432493][   T73]      netlink_rcv_skb+0x130/0x360
[ 2306.432493][   T73]      netlink_unicast+0x449/0x710
[ 2306.432493][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2306.432493][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2306.432493][   T73]      ___sys_sendmsg+0xee/0x170
[ 2306.432493][   T73]      __sys_sendmsg+0xcd/0x170
[ 2306.432493][   T73]      do_syscall_64+0xc6/0x1e0
[ 2306.432493][   T73] 
[ 2306.434452][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2306.434452][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2306.434452][   T73]      ipv6_find_idev+0x102/0x170
[ 2306.434452][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2306.434452][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2306.434452][   T73]      netlink_rcv_skb+0x130/0x360
[ 2306.434452][   T73]      netlink_unicast+0x449/0x710
[ 2306.434452][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2306.434452][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2306.434452][   T73]      ___sys_sendmsg+0xee/0x170
[ 2306.434452][   T73]      __sys_sendmsg+0xcd/0x170
[ 2306.434452][   T73]      do_syscall_64+0xc6/0x1e0
[ 2306.434452][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2306.434452][   T73] 
[ 2306.435976][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2306.435976][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2306.435976][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2306.435976][   T73]      ipv6_find_idev+0x102/0x170
[ 2306.435976][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2306.435976][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2306.435976][   T73]      netlink_rcv_skb+0x130/0x360
[ 2306.435976][   T73]      netlink_unicast+0x449/0x710
[ 2306.435976][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2306.435976][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2306.435976][   T73]      ___sys_sendmsg+0xee/0x170
[ 2306.435976][   T73]      __sys_sendmsg+0xcd/0x170
[ 2306.435976][   T73]      do_syscall_64+0xc6/0x1e0
[ 2306.435976][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2306.435976][   T73] 
[ 2306.437673][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2306.437958][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2306.437958][   T73]      netdev_get_by_index+0x5e/0x80
[ 2306.437958][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2306.437958][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2306.437958][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2306.437958][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2306.437958][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2306.437958][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2306.437958][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2306.437958][   T73]      addrconf_dad_begin+0x310/0x670
[ 2306.437958][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2306.437958][   T73]      process_one_work+0x84d/0x18a0
[ 2306.437958][   T73]      worker_thread+0x587/0xd30
[ 2306.437958][   T73]      kthread+0x28a/0x350
[ 2306.437958][   T73]      ret_from_fork+0x31/0x70
[ 2306.437958][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2306.437958][   T73] 
[ 2306.439887][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2306.439887][   T73]      netdev_get_by_index+0x5e/0x80
[ 2306.439887][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2306.439887][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2306.439887][   T73]      ip6_route_add+0x1c/0x140
[ 2306.439887][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2306.439887][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2306.439887][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2306.439887][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2306.439887][   T73]      netlink_rcv_skb+0x130/0x360
[ 2306.439887][   T73]      netlink_unicast+0x449/0x710
[ 2306.439887][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2306.439887][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2306.439887][   T73]      ___sys_sendmsg+0xee/0x170
[ 2306.439887][   T73]      __sys_sendmsg+0xcd/0x170
[ 2306.439887][   T73]      do_syscall_64+0xc6/0x1e0
[ 2306.439887][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2306.439887][   T73] 
[ 2306.441891][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2306.441891][   T73]      netdev_get_by_index+0x5e/0x80
[ 2306.441891][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2306.441891][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2306.441891][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2306.441891][   T73]      ipv6_add_addr+0x411/0x2000
[ 2306.441891][   T73]      inet6_addr_add+0x30e/0xa40
[ 2306.441891][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2306.441891][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2306.441891][   T73]      netlink_rcv_skb+0x130/0x360
[ 2306.441891][   T73]      netlink_unicast+0x449/0x710
[ 2306.441891][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2306.441891][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2306.441891][   T73]      ___sys_sendmsg+0xee/0x170
[ 2306.441891][   T73]      __sys_sendmsg+0xcd/0x170
[ 2306.441891][   T73]      do_syscall_64+0xc6/0x1e0
[ 2306.441891][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2306.441891][   T73] 
[ 2306.443884][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2306.443884][   T73]      netdev_get_by_index+0x5e/0x80
[ 2306.443884][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2306.443884][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2306.443884][   T73]      ip6_route_add+0x1c/0x140
[ 2306.443884][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2306.443884][   T73]      addrconf_add_dev+0xe2/0x170
[ 2306.443884][   T73]      inet6_addr_add+0x12f/0xa40
[ 2306.443884][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2306.443884][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2306.443884][   T73]      netlink_rcv_skb+0x130/0x360
[ 2306.443884][   T73]      netlink_unicast+0x449/0x710
[ 2306.443884][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2306.443884][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2306.443884][   T73]      ___sys_sendmsg+0xee/0x170
[ 2306.443884][   T73]      __sys_sendmsg+0xcd/0x170
[ 2306.443884][   T73]      do_syscall_64+0xc6/0x1e0
[ 2306.443884][   T73] 
[ 2306.445846][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2306.445846][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2306.445846][   T73]      ipv6_find_idev+0x102/0x170
[ 2306.445846][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2306.445846][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2306.445846][   T73]      netlink_rcv_skb+0x130/0x360
[ 2306.445846][   T73]      netlink_unicast+0x449/0x710
[ 2306.445846][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2306.445846][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2306.445846][   T73]      ___sys_sendmsg+0xee/0x170
[ 2306.445846][   T73]      __sys_sendmsg+0xcd/0x170
[ 2306.445846][   T73]      do_syscall_64+0xc6/0x1e0
[ 2306.445846][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2306.445846][   T73] 
[ 2306.447402][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2306.447402][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2306.447402][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2306.447402][   T73]      ipv6_find_idev+0x102/0x170
[ 2306.447402][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2306.447402][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2306.447402][   T73]      netlink_rcv_skb+0x130/0x360
[ 2306.447402][   T73]      netlink_unicast+0x449/0x710
[ 2306.447402][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2306.447402][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2306.447402][   T73]      ___sys_sendmsg+0xee/0x170
[ 2306.447402][   T73]      __sys_sendmsg+0xcd/0x170
[ 2306.447402][   T73]      do_syscall_64+0xc6/0x1e0
[ 2306.447402][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2306.447402][   T73] 
[ 2306.449066][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2306.449335][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2306.449335][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2306.449335][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2306.449335][   T73]      fib6_nh_init+0xa22/0x1580
[ 2306.449335][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2306.449335][   T73]      ip6_route_add+0x1c/0x140
[ 2306.449335][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2306.449335][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2306.449335][   T73]      netlink_rcv_skb+0x130/0x360
[ 2306.449335][   T73]      netlink_unicast+0x449/0x710
[ 2306.449335][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2306.449335][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2306.449335][   T73]      ___sys_sendmsg+0xee/0x170
[ 2306.449335][   T73]      __sys_sendmsg+0xcd/0x170
[ 2306.449335][   T73]      do_syscall_64+0xc6/0x1e0
[ 2306.449335][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2306.449335][   T73] 
[ 2306.451326][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2306.451326][   T73]      dst_init+0x84/0x4a0
[ 2306.451326][   T73]      dst_alloc+0x97/0x150
[ 2306.451326][   T73]      ip6_dst_alloc+0x23/0x90
[ 2306.451326][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2306.451326][   T73]      ip6_pol_route+0x56f/0x840
[ 2306.451326][   T73]      fib6_rule_lookup+0x456/0x630
[ 2306.451326][   T73]      ip6_route_input+0x59c/0xa50
[ 2306.451326][   T73]      ipv6_rcv+0x397/0x810
[ 2306.451326][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2306.451326][   T73]      process_backlog+0x101/0x620
[ 2306.451326][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2306.451326][   T73]      net_rx_action+0x495/0xbe0
[ 2306.451326][   T73]      __do_softirq+0x1b5/0x7f6
[ 2306.451326][   T73] 
[ 2306.453194][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2306.453194][   T73]      netdev_get_by_index+0x5e/0x80
[ 2306.453194][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2306.453194][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2306.453194][   T73]      ip6_route_add+0x1c/0x140
[ 2306.453194][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2306.453194][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2306.453194][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2306.453194][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2306.453194][   T73]      netlink_rcv_skb+0x130/0x360
[ 2306.453194][   T73]      netlink_unicast+0x449/0x710
[ 2306.453194][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2306.453194][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2306.453194][   T73]      ___sys_sendmsg+0xee/0x170
[ 2306.453194][   T73]      __sys_sendmsg+0xcd/0x170
[ 2306.453194][   T73]      do_syscall_64+0xc6/0x1e0
[ 2306.453194][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2306.453194][   T73] 
[ 2306.455359][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2306.455359][   T73]      netdev_get_by_index+0x5e/0x80
[ 2306.455359][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2306.455359][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2306.455359][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2306.455359][   T73]      ipv6_add_addr+0x411/0x2000
[ 2306.455359][   T73]      inet6_addr_add+0x30e/0xa40
[ 2306.455359][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2306.455359][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2306.455359][   T73]      netlink_rcv_skb+0x130/0x360
[ 2306.455359][   T73]      netlink_unicast+0x449/0x710
[ 2306.455359][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2306.455359][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2306.455359][   T73]      ___sys_sendmsg+0xee/0x170
[ 2306.455359][   T73]      __sys_sendmsg+0xcd/0x170
[ 2306.455359][   T73]      do_syscall_64+0xc6/0x1e0
[ 2306.455359][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2306.455359][   T73] 
[ 2306.457588][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2306.457588][   T73]      netdev_get_by_index+0x5e/0x80
[ 2306.457588][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2306.457588][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2306.457588][   T73]      ip6_route_add+0x1c/0x140
[ 2306.457588][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2306.457588][   T73]      addrconf_add_dev+0xe2/0x170
[ 2306.457588][   T73]      inet6_addr_add+0x12f/0xa40
[ 2306.457588][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2306.457588][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2306.457588][   T73]      netlink_rcv_skb+0x130/0x360
[ 2306.457588][   T73]      netlink_unicast+0x449/0x710
[ 2306.457588][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2306.457588][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2306.457588][   T73]      ___sys_sendmsg+0xee/0x170
[ 2306.457588][   T73]      __sys_sendmsg+0xcd/0x170
[ 2306.457588][   T73]      do_syscall_64+0xc6/0x1e0
[ 2306.457588][   T73] 
[ 2306.459784][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2306.459784][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2306.459784][   T73]      ipv6_find_idev+0x102/0x170
[ 2306.459784][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2306.459784][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2306.459784][   T73]      netlink_rcv_skb+0x130/0x360
[ 2306.459784][   T73]      netlink_unicast+0x449/0x710
[ 2306.459784][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2306.459784][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2306.459784][   T73]      ___sys_sendmsg+0xee/0x170
[ 2306.459784][   T73]      __sys_sendmsg+0xcd/0x170
[ 2306.459784][   T73]      do_syscall_64+0xc6/0x1e0
[ 2306.459784][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2306.459784][   T73] 
[ 2306.461554][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2306.461554][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2306.461554][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2306.461554][   T73]      ipv6_find_idev+0x102/0x170
[ 2306.461554][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2306.461554][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2306.461554][   T73]      netlink_rcv_skb+0x130/0x360
[ 2306.461554][   T73]      netlink_unicast+0x449/0x710
[ 2306.461554][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2306.461554][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2306.461554][   T73]      ___sys_sendmsg+0xee/0x170
[ 2306.461554][   T73]      __sys_sendmsg+0xcd/0x170
[ 2306.461554][   T73]      do_syscall_64+0xc6/0x1e0
[ 2306.461554][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2306.461554][   T73] 
[ 2306.463409][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2306.463742][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2306.463742][   T73]      netdev_get_by_index+0x5e/0x80
[ 2306.463742][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2306.463742][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2306.463742][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2306.463742][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2306.463742][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2306.463742][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2306.463742][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2306.463742][   T73]      addrconf_dad_begin+0x310/0x670
[ 2306.463742][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2306.463742][   T73]      process_one_work+0x84d/0x18a0
[ 2306.463742][   T73]      worker_thread+0x587/0xd30
[ 2306.463742][   T73]      kthread+0x28a/0x350
[ 2306.463742][   T73]      ret_from_fork+0x31/0x70
[ 2306.463742][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2306.463742][   T73] 
[ 2306.465830][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2306.465830][   T73]      netdev_get_by_index+0x5e/0x80
[ 2306.465830][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2306.465830][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2306.465830][   T73]      ip6_route_add+0x1c/0x140
[ 2306.465830][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2306.465830][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2306.465830][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2306.465830][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2306.465830][   T73]      netlink_rcv_skb+0x130/0x360
[ 2306.465830][   T73]      netlink_unicast+0x449/0x710
[ 2306.465830][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2306.465830][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2306.465830][   T73]      ___sys_sendmsg+0xee/0x170
[ 2306.465830][   T73]      __sys_sendmsg+0xcd/0x170
[ 2306.465830][   T73]      do_syscall_64+0xc6/0x1e0
[ 2306.465830][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2306.465830][   T73] 
[ 2306.468054][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2306.468054][   T73]      netdev_get_by_index+0x5e/0x80
[ 2306.468054][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2306.468054][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2306.468054][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2306.468054][   T73]      ipv6_add_addr+0x411/0x2000
[ 2306.468054][   T73]      inet6_addr_add+0x30e/0xa40
[ 2306.468054][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2306.468054][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2306.468054][   T73]      netlink_rcv_skb+0x130/0x360
[ 2306.468054][   T73]      netlink_unicast+0x449/0x710
[ 2306.468054][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2306.468054][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2306.468054][   T73]      ___sys_sendmsg+0xee/0x170
[ 2306.468054][   T73]      __sys_sendmsg+0xcd/0x170
[ 2306.468054][   T73]      do_syscall_64+0xc6/0x1e0
[ 2306.468054][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2306.468054][   T73] 
[ 2306.470355][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2306.470355][   T73]      netdev_get_by_index+0x5e/0x80
[ 2306.470355][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2306.470355][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2306.470355][   T73]      ip6_route_add+0x1c/0x140
[ 2306.470355][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2306.470355][   T73]      addrconf_add_dev+0xe2/0x170
[ 2306.470355][   T73]      inet6_addr_add+0x12f/0xa40
[ 2306.470355][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2306.470355][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2306.470355][   T73]      netlink_rcv_skb+0x130/0x360
[ 2306.470355][   T73]      netlink_unicast+0x449/0x710
[ 2306.470355][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2306.470355][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2306.470355][   T73]      ___sys_sendmsg+0xee/0x170
[ 2306.470355][   T73]      __sys_sendmsg+0xcd/0x170
[ 2306.470355][   T73]      do_syscall_64+0xc6/0x1e0
[ 2306.470355][   T73] 
[ 2306.472550][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2306.472550][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2306.472550][   T73]      ipv6_find_idev+0x102/0x170
[ 2306.472550][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2306.472550][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2306.472550][   T73]      netlink_rcv_skb+0x130/0x360
[ 2306.472550][   T73]      netlink_unicast+0x449/0x710
[ 2306.472550][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2306.472550][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2306.472550][   T73]      ___sys_sendmsg+0xee/0x170
[ 2306.472550][   T73]      __sys_sendmsg+0xcd/0x170
[ 2306.472550][   T73]      do_syscall_64+0xc6/0x1e0
[ 2306.472550][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2306.472550][   T73] 
[ 2306.474271][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2306.474271][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2306.474271][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2306.474271][   T73]      ipv6_find_idev+0x102/0x170
[ 2306.474271][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2306.474271][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2306.474271][   T73]      netlink_rcv_skb+0x130/0x360
[ 2306.474271][   T73]      netlink_unicast+0x449/0x710
[ 2306.474271][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2306.474271][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2306.474271][   T73]      ___sys_sendmsg+0xee/0x170
[ 2306.474271][   T73]      __sys_sendmsg+0xcd/0x170
[ 2306.474271][   T73]      do_syscall_64+0xc6/0x1e0
[ 2306.474271][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2306.474271][   T73] 
[ 2316.711800][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2316.712232][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2316.712232][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2316.712232][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2316.712232][   T73]      fib6_nh_init+0xa22/0x1580
[ 2316.712232][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2316.712232][   T73]      ip6_route_add+0x1c/0x140
[ 2316.712232][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2316.712232][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2316.712232][   T73]      netlink_rcv_skb+0x130/0x360
[ 2316.712232][   T73]      netlink_unicast+0x449/0x710
[ 2316.712232][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2316.712232][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2316.712232][   T73]      ___sys_sendmsg+0xee/0x170
[ 2316.712232][   T73]      __sys_sendmsg+0xcd/0x170
[ 2316.712232][   T73]      do_syscall_64+0xc6/0x1e0
[ 2316.712232][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2316.712232][   T73] 
[ 2316.714276][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2316.714276][   T73]      dst_init+0x84/0x4a0
[ 2316.714276][   T73]      dst_alloc+0x97/0x150
[ 2316.714276][   T73]      ip6_dst_alloc+0x23/0x90
[ 2316.714276][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2316.714276][   T73]      ip6_pol_route+0x56f/0x840
[ 2316.714276][   T73]      fib6_rule_lookup+0x456/0x630
[ 2316.714276][   T73]      ip6_route_input+0x59c/0xa50
[ 2316.714276][   T73]      ipv6_rcv+0x397/0x810
[ 2316.714276][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2316.714276][   T73]      process_backlog+0x101/0x620
[ 2316.714276][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2316.714276][   T73]      net_rx_action+0x495/0xbe0
[ 2316.714276][   T73]      __do_softirq+0x1b5/0x7f6
[ 2316.714276][   T73] 
[ 2316.715906][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2316.715906][   T73]      netdev_get_by_index+0x5e/0x80
[ 2316.715906][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2316.715906][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2316.715906][   T73]      ip6_route_add+0x1c/0x140
[ 2316.715906][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2316.715906][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2316.715906][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2316.715906][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2316.715906][   T73]      netlink_rcv_skb+0x130/0x360
[ 2316.715906][   T73]      netlink_unicast+0x449/0x710
[ 2316.715906][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2316.715906][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2316.715906][   T73]      ___sys_sendmsg+0xee/0x170
[ 2316.715906][   T73]      __sys_sendmsg+0xcd/0x170
[ 2316.715906][   T73]      do_syscall_64+0xc6/0x1e0
[ 2316.715906][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2316.715906][   T73] 
[ 2316.717906][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2316.717906][   T73]      netdev_get_by_index+0x5e/0x80
[ 2316.717906][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2316.717906][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2316.717906][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2316.717906][   T73]      ipv6_add_addr+0x411/0x2000
[ 2316.717906][   T73]      inet6_addr_add+0x30e/0xa40
[ 2316.717906][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2316.717906][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2316.717906][   T73]      netlink_rcv_skb+0x130/0x360
[ 2316.717906][   T73]      netlink_unicast+0x449/0x710
[ 2316.717906][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2316.717906][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2316.717906][   T73]      ___sys_sendmsg+0xee/0x170
[ 2316.717906][   T73]      __sys_sendmsg+0xcd/0x170
[ 2316.717906][   T73]      do_syscall_64+0xc6/0x1e0
[ 2316.717906][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2316.717906][   T73] 
[ 2316.719915][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2316.719915][   T73]      netdev_get_by_index+0x5e/0x80
[ 2316.719915][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2316.719915][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2316.719915][   T73]      ip6_route_add+0x1c/0x140
[ 2316.719915][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2316.719915][   T73]      addrconf_add_dev+0xe2/0x170
[ 2316.719915][   T73]      inet6_addr_add+0x12f/0xa40
[ 2316.719915][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2316.719915][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2316.719915][   T73]      netlink_rcv_skb+0x130/0x360
[ 2316.719915][   T73]      netlink_unicast+0x449/0x710
[ 2316.719915][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2316.719915][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2316.719915][   T73]      ___sys_sendmsg+0xee/0x170
[ 2316.719915][   T73]      __sys_sendmsg+0xcd/0x170
[ 2316.719915][   T73]      do_syscall_64+0xc6/0x1e0
[ 2316.719915][   T73] 
[ 2316.721869][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2316.721869][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2316.721869][   T73]      ipv6_find_idev+0x102/0x170
[ 2316.721869][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2316.721869][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2316.721869][   T73]      netlink_rcv_skb+0x130/0x360
[ 2316.721869][   T73]      netlink_unicast+0x449/0x710
[ 2316.721869][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2316.721869][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2316.721869][   T73]      ___sys_sendmsg+0xee/0x170
[ 2316.721869][   T73]      __sys_sendmsg+0xcd/0x170
[ 2316.721869][   T73]      do_syscall_64+0xc6/0x1e0
[ 2316.721869][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2316.721869][   T73] 
[ 2316.723400][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2316.723400][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2316.723400][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2316.723400][   T73]      ipv6_find_idev+0x102/0x170
[ 2316.723400][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2316.723400][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2316.723400][   T73]      netlink_rcv_skb+0x130/0x360
[ 2316.723400][   T73]      netlink_unicast+0x449/0x710
[ 2316.723400][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2316.723400][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2316.723400][   T73]      ___sys_sendmsg+0xee/0x170
[ 2316.723400][   T73]      __sys_sendmsg+0xcd/0x170
[ 2316.723400][   T73]      do_syscall_64+0xc6/0x1e0
[ 2316.723400][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2316.723400][   T73] 
[ 2316.725096][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2316.725374][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2316.725374][   T73]      netdev_get_by_index+0x5e/0x80
[ 2316.725374][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2316.725374][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2316.725374][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2316.725374][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2316.725374][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2316.725374][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2316.725374][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2316.725374][   T73]      addrconf_dad_begin+0x310/0x670
[ 2316.725374][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2316.725374][   T73]      process_one_work+0x84d/0x18a0
[ 2316.725374][   T73]      worker_thread+0x587/0xd30
[ 2316.725374][   T73]      kthread+0x28a/0x350
[ 2316.725374][   T73]      ret_from_fork+0x31/0x70
[ 2316.725374][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2316.725374][   T73] 
[ 2316.727277][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2316.727277][   T73]      netdev_get_by_index+0x5e/0x80
[ 2316.727277][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2316.727277][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2316.727277][   T73]      ip6_route_add+0x1c/0x140
[ 2316.727277][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2316.727277][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2316.727277][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2316.727277][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2316.727277][   T73]      netlink_rcv_skb+0x130/0x360
[ 2316.727277][   T73]      netlink_unicast+0x449/0x710
[ 2316.727277][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2316.727277][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2316.727277][   T73]      ___sys_sendmsg+0xee/0x170
[ 2316.727277][   T73]      __sys_sendmsg+0xcd/0x170
[ 2316.727277][   T73]      do_syscall_64+0xc6/0x1e0
[ 2316.727277][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2316.727277][   T73] 
[ 2316.729258][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2316.729258][   T73]      netdev_get_by_index+0x5e/0x80
[ 2316.729258][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2316.729258][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2316.729258][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2316.729258][   T73]      ipv6_add_addr+0x411/0x2000
[ 2316.729258][   T73]      inet6_addr_add+0x30e/0xa40
[ 2316.729258][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2316.729258][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2316.729258][   T73]      netlink_rcv_skb+0x130/0x360
[ 2316.729258][   T73]      netlink_unicast+0x449/0x710
[ 2316.729258][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2316.729258][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2316.729258][   T73]      ___sys_sendmsg+0xee/0x170
[ 2316.729258][   T73]      __sys_sendmsg+0xcd/0x170
[ 2316.729258][   T73]      do_syscall_64+0xc6/0x1e0
[ 2316.729258][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2316.729258][   T73] 
[ 2316.731248][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2316.731248][   T73]      netdev_get_by_index+0x5e/0x80
[ 2316.731248][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2316.731248][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2316.731248][   T73]      ip6_route_add+0x1c/0x140
[ 2316.731248][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2316.731248][   T73]      addrconf_add_dev+0xe2/0x170
[ 2316.731248][   T73]      inet6_addr_add+0x12f/0xa40
[ 2316.731248][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2316.731248][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2316.731248][   T73]      netlink_rcv_skb+0x130/0x360
[ 2316.731248][   T73]      netlink_unicast+0x449/0x710
[ 2316.731248][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2316.731248][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2316.731248][   T73]      ___sys_sendmsg+0xee/0x170
[ 2316.731248][   T73]      __sys_sendmsg+0xcd/0x170
[ 2316.731248][   T73]      do_syscall_64+0xc6/0x1e0
[ 2316.731248][   T73] 
[ 2316.733201][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2316.733201][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2316.733201][   T73]      ipv6_find_idev+0x102/0x170
[ 2316.733201][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2316.733201][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2316.733201][   T73]      netlink_rcv_skb+0x130/0x360
[ 2316.733201][   T73]      netlink_unicast+0x449/0x710
[ 2316.733201][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2316.733201][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2316.733201][   T73]      ___sys_sendmsg+0xee/0x170
[ 2316.733201][   T73]      __sys_sendmsg+0xcd/0x170
[ 2316.733201][   T73]      do_syscall_64+0xc6/0x1e0
[ 2316.733201][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2316.733201][   T73] 
[ 2316.734737][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2316.734737][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2316.734737][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2316.734737][   T73]      ipv6_find_idev+0x102/0x170
[ 2316.734737][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2316.734737][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2316.734737][   T73]      netlink_rcv_skb+0x130/0x360
[ 2316.734737][   T73]      netlink_unicast+0x449/0x710
[ 2316.734737][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2316.734737][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2316.734737][   T73]      ___sys_sendmsg+0xee/0x170
[ 2316.734737][   T73]      __sys_sendmsg+0xcd/0x170
[ 2316.734737][   T73]      do_syscall_64+0xc6/0x1e0
[ 2316.734737][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2316.734737][   T73] 
[ 2316.736404][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2316.736672][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2316.736672][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2316.736672][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2316.736672][   T73]      fib6_nh_init+0xa22/0x1580
[ 2316.736672][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2316.736672][   T73]      ip6_route_add+0x1c/0x140
[ 2316.736672][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2316.736672][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2316.736672][   T73]      netlink_rcv_skb+0x130/0x360
[ 2316.736672][   T73]      netlink_unicast+0x449/0x710
[ 2316.736672][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2316.736672][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2316.736672][   T73]      ___sys_sendmsg+0xee/0x170
[ 2316.736672][   T73]      __sys_sendmsg+0xcd/0x170
[ 2316.736672][   T73]      do_syscall_64+0xc6/0x1e0
[ 2316.736672][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2316.736672][   T73] 
[ 2316.738857][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2316.738857][   T73]      dst_init+0x84/0x4a0
[ 2316.738857][   T73]      dst_alloc+0x97/0x150
[ 2316.738857][   T73]      ip6_dst_alloc+0x23/0x90
[ 2316.738857][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2316.738857][   T73]      ip6_pol_route+0x56f/0x840
[ 2316.738857][   T73]      fib6_rule_lookup+0x456/0x630
[ 2316.738857][   T73]      ip6_route_input+0x59c/0xa50
[ 2316.738857][   T73]      ipv6_rcv+0x397/0x810
[ 2316.738857][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2316.738857][   T73]      process_backlog+0x101/0x620
[ 2316.738857][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2316.738857][   T73]      net_rx_action+0x495/0xbe0
[ 2316.738857][   T73]      __do_softirq+0x1b5/0x7f6
[ 2316.738857][   T73] 
[ 2316.741457][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2316.741457][   T73]      netdev_get_by_index+0x5e/0x80
[ 2316.741457][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2316.741457][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2316.741457][   T73]      ip6_route_add+0x1c/0x140
[ 2316.741457][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2316.741457][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2316.741457][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2316.741457][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2316.741457][   T73]      netlink_rcv_skb+0x130/0x360
[ 2316.741457][   T73]      netlink_unicast+0x449/0x710
[ 2316.741457][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2316.741457][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2316.741457][   T73]      ___sys_sendmsg+0xee/0x170
[ 2316.741457][   T73]      __sys_sendmsg+0xcd/0x170
[ 2316.741457][   T73]      do_syscall_64+0xc6/0x1e0
[ 2316.741457][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2316.741457][   T73] 
[ 2316.744766][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2316.744766][   T73]      netdev_get_by_index+0x5e/0x80
[ 2316.744766][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2316.744766][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2316.744766][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2316.744766][   T73]      ipv6_add_addr+0x411/0x2000
[ 2316.744766][   T73]      inet6_addr_add+0x30e/0xa40
[ 2316.744766][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2316.744766][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2316.744766][   T73]      netlink_rcv_skb+0x130/0x360
[ 2316.744766][   T73]      netlink_unicast+0x449/0x710
[ 2316.744766][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2316.744766][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2316.744766][   T73]      ___sys_sendmsg+0xee/0x170
[ 2316.744766][   T73]      __sys_sendmsg+0xcd/0x170
[ 2316.744766][   T73]      do_syscall_64+0xc6/0x1e0
[ 2316.744766][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2316.744766][   T73] 
[ 2316.748339][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2316.748339][   T73]      netdev_get_by_index+0x5e/0x80
[ 2316.748339][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2316.748339][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2316.748339][   T73]      ip6_route_add+0x1c/0x140
[ 2316.748339][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2316.748339][   T73]      addrconf_add_dev+0xe2/0x170
[ 2316.748339][   T73]      inet6_addr_add+0x12f/0xa40
[ 2316.748339][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2316.748339][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2316.748339][   T73]      netlink_rcv_skb+0x130/0x360
[ 2316.748339][   T73]      netlink_unicast+0x449/0x710
[ 2316.748339][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2316.748339][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2316.748339][   T73]      ___sys_sendmsg+0xee/0x170
[ 2316.748339][   T73]      __sys_sendmsg+0xcd/0x170
[ 2316.748339][   T73]      do_syscall_64+0xc6/0x1e0
[ 2316.748339][   T73] 
[ 2316.751727][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2316.751727][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2316.751727][   T73]      ipv6_find_idev+0x102/0x170
[ 2316.751727][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2316.751727][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2316.751727][   T73]      netlink_rcv_skb+0x130/0x360
[ 2316.751727][   T73]      netlink_unicast+0x449/0x710
[ 2316.751727][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2316.751727][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2316.751727][   T73]      ___sys_sendmsg+0xee/0x170
[ 2316.751727][   T73]      __sys_sendmsg+0xcd/0x170
[ 2316.751727][   T73]      do_syscall_64+0xc6/0x1e0
[ 2316.751727][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2316.751727][   T73] 
[ 2316.754443][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2316.754443][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2316.754443][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2316.754443][   T73]      ipv6_find_idev+0x102/0x170
[ 2316.754443][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2316.754443][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2316.754443][   T73]      netlink_rcv_skb+0x130/0x360
[ 2316.754443][   T73]      netlink_unicast+0x449/0x710
[ 2316.754443][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2316.754443][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2316.754443][   T73]      ___sys_sendmsg+0xee/0x170
[ 2316.754443][   T73]      __sys_sendmsg+0xcd/0x170
[ 2316.754443][   T73]      do_syscall_64+0xc6/0x1e0
[ 2316.754443][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2316.754443][   T73] 
[ 2316.757475][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2316.757911][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2316.757911][   T73]      netdev_get_by_index+0x5e/0x80
[ 2316.757911][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2316.757911][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2316.757911][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2316.757911][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2316.757911][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2316.757911][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2316.757911][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2316.757911][   T73]      addrconf_dad_begin+0x310/0x670
[ 2316.757911][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2316.757911][   T73]      process_one_work+0x84d/0x18a0
[ 2316.757911][   T73]      worker_thread+0x587/0xd30
[ 2316.757911][   T73]      kthread+0x28a/0x350
[ 2316.757911][   T73]      ret_from_fork+0x31/0x70
[ 2316.757911][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2316.757911][   T73] 
[ 2316.761315][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2316.761315][   T73]      netdev_get_by_index+0x5e/0x80
[ 2316.761315][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2316.761315][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2316.761315][   T73]      ip6_route_add+0x1c/0x140
[ 2316.761315][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2316.761315][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2316.761315][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2316.761315][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2316.761315][   T73]      netlink_rcv_skb+0x130/0x360
[ 2316.761315][   T73]      netlink_unicast+0x449/0x710
[ 2316.761315][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2316.761315][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2316.761315][   T73]      ___sys_sendmsg+0xee/0x170
[ 2316.761315][   T73]      __sys_sendmsg+0xcd/0x170
[ 2316.761315][   T73]      do_syscall_64+0xc6/0x1e0
[ 2316.761315][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2316.761315][   T73] 
[ 2316.764641][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2316.764641][   T73]      netdev_get_by_index+0x5e/0x80
[ 2316.764641][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2316.764641][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2316.764641][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2316.764641][   T73]      ipv6_add_addr+0x411/0x2000
[ 2316.764641][   T73]      inet6_addr_add+0x30e/0xa40
[ 2316.764641][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2316.764641][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2316.764641][   T73]      netlink_rcv_skb+0x130/0x360
[ 2316.764641][   T73]      netlink_unicast+0x449/0x710
[ 2316.764641][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2316.764641][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2316.764641][   T73]      ___sys_sendmsg+0xee/0x170
[ 2316.764641][   T73]      __sys_sendmsg+0xcd/0x170
[ 2316.764641][   T73]      do_syscall_64+0xc6/0x1e0
[ 2316.764641][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2316.764641][   T73] 
[ 2316.768005][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2316.768005][   T73]      netdev_get_by_index+0x5e/0x80
[ 2316.768005][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2316.768005][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2316.768005][   T73]      ip6_route_add+0x1c/0x140
[ 2316.768005][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2316.768005][   T73]      addrconf_add_dev+0xe2/0x170
[ 2316.768005][   T73]      inet6_addr_add+0x12f/0xa40
[ 2316.768005][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2316.768005][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2316.768005][   T73]      netlink_rcv_skb+0x130/0x360
[ 2316.768005][   T73]      netlink_unicast+0x449/0x710
[ 2316.768005][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2316.768005][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2316.768005][   T73]      ___sys_sendmsg+0xee/0x170
[ 2316.768005][   T73]      __sys_sendmsg+0xcd/0x170
[ 2316.768005][   T73]      do_syscall_64+0xc6/0x1e0
[ 2316.768005][   T73] 
[ 2316.771474][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2316.771474][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2316.771474][   T73]      ipv6_find_idev+0x102/0x170
[ 2316.771474][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2316.771474][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2316.771474][   T73]      netlink_rcv_skb+0x130/0x360
[ 2316.771474][   T73]      netlink_unicast+0x449/0x710
[ 2316.771474][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2316.771474][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2316.771474][   T73]      ___sys_sendmsg+0xee/0x170
[ 2316.771474][   T73]      __sys_sendmsg+0xcd/0x170
[ 2316.771474][   T73]      do_syscall_64+0xc6/0x1e0
[ 2316.771474][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2316.771474][   T73] 
[ 2316.774212][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2316.774212][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2316.774212][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2316.774212][   T73]      ipv6_find_idev+0x102/0x170
[ 2316.774212][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2316.774212][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2316.774212][   T73]      netlink_rcv_skb+0x130/0x360
[ 2316.774212][   T73]      netlink_unicast+0x449/0x710
[ 2316.774212][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2316.774212][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2316.774212][   T73]      ___sys_sendmsg+0xee/0x170
[ 2316.774212][   T73]      __sys_sendmsg+0xcd/0x170
[ 2316.774212][   T73]      do_syscall_64+0xc6/0x1e0
[ 2316.774212][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2316.774212][   T73] 
[ 2327.015785][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2327.016222][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2327.016222][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2327.016222][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2327.016222][   T73]      fib6_nh_init+0xa22/0x1580
[ 2327.016222][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2327.016222][   T73]      ip6_route_add+0x1c/0x140
[ 2327.016222][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2327.016222][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2327.016222][   T73]      netlink_rcv_skb+0x130/0x360
[ 2327.016222][   T73]      netlink_unicast+0x449/0x710
[ 2327.016222][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2327.016222][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2327.016222][   T73]      ___sys_sendmsg+0xee/0x170
[ 2327.016222][   T73]      __sys_sendmsg+0xcd/0x170
[ 2327.016222][   T73]      do_syscall_64+0xc6/0x1e0
[ 2327.016222][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2327.016222][   T73] 
[ 2327.018119][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2327.018119][   T73]      dst_init+0x84/0x4a0
[ 2327.018119][   T73]      dst_alloc+0x97/0x150
[ 2327.018119][   T73]      ip6_dst_alloc+0x23/0x90
[ 2327.018119][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2327.018119][   T73]      ip6_pol_route+0x56f/0x840
[ 2327.018119][   T73]      fib6_rule_lookup+0x456/0x630
[ 2327.018119][   T73]      ip6_route_input+0x59c/0xa50
[ 2327.018119][   T73]      ipv6_rcv+0x397/0x810
[ 2327.018119][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2327.018119][   T73]      process_backlog+0x101/0x620
[ 2327.018119][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2327.018119][   T73]      net_rx_action+0x495/0xbe0
[ 2327.018119][   T73]      __do_softirq+0x1b5/0x7f6
[ 2327.018119][   T73] 
[ 2327.019755][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2327.019755][   T73]      netdev_get_by_index+0x5e/0x80
[ 2327.019755][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2327.019755][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2327.019755][   T73]      ip6_route_add+0x1c/0x140
[ 2327.019755][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2327.019755][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2327.019755][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2327.019755][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2327.019755][   T73]      netlink_rcv_skb+0x130/0x360
[ 2327.019755][   T73]      netlink_unicast+0x449/0x710
[ 2327.019755][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2327.019755][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2327.019755][   T73]      ___sys_sendmsg+0xee/0x170
[ 2327.019755][   T73]      __sys_sendmsg+0xcd/0x170
[ 2327.019755][   T73]      do_syscall_64+0xc6/0x1e0
[ 2327.019755][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2327.019755][   T73] 
[ 2327.021749][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2327.021749][   T73]      netdev_get_by_index+0x5e/0x80
[ 2327.021749][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2327.021749][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2327.021749][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2327.021749][   T73]      ipv6_add_addr+0x411/0x2000
[ 2327.021749][   T73]      inet6_addr_add+0x30e/0xa40
[ 2327.021749][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2327.021749][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2327.021749][   T73]      netlink_rcv_skb+0x130/0x360
[ 2327.021749][   T73]      netlink_unicast+0x449/0x710
[ 2327.021749][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2327.021749][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2327.021749][   T73]      ___sys_sendmsg+0xee/0x170
[ 2327.021749][   T73]      __sys_sendmsg+0xcd/0x170
[ 2327.021749][   T73]      do_syscall_64+0xc6/0x1e0
[ 2327.021749][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2327.021749][   T73] 
[ 2327.023746][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2327.023746][   T73]      netdev_get_by_index+0x5e/0x80
[ 2327.023746][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2327.023746][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2327.023746][   T73]      ip6_route_add+0x1c/0x140
[ 2327.023746][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2327.023746][   T73]      addrconf_add_dev+0xe2/0x170
[ 2327.023746][   T73]      inet6_addr_add+0x12f/0xa40
[ 2327.023746][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2327.023746][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2327.023746][   T73]      netlink_rcv_skb+0x130/0x360
[ 2327.023746][   T73]      netlink_unicast+0x449/0x710
[ 2327.023746][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2327.023746][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2327.023746][   T73]      ___sys_sendmsg+0xee/0x170
[ 2327.023746][   T73]      __sys_sendmsg+0xcd/0x170
[ 2327.023746][   T73]      do_syscall_64+0xc6/0x1e0
[ 2327.023746][   T73] 
[ 2327.025713][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2327.025713][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2327.025713][   T73]      ipv6_find_idev+0x102/0x170
[ 2327.025713][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2327.025713][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2327.025713][   T73]      netlink_rcv_skb+0x130/0x360
[ 2327.025713][   T73]      netlink_unicast+0x449/0x710
[ 2327.025713][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2327.025713][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2327.025713][   T73]      ___sys_sendmsg+0xee/0x170
[ 2327.025713][   T73]      __sys_sendmsg+0xcd/0x170
[ 2327.025713][   T73]      do_syscall_64+0xc6/0x1e0
[ 2327.025713][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2327.025713][   T73] 
[ 2327.027242][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2327.027242][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2327.027242][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2327.027242][   T73]      ipv6_find_idev+0x102/0x170
[ 2327.027242][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2327.027242][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2327.027242][   T73]      netlink_rcv_skb+0x130/0x360
[ 2327.027242][   T73]      netlink_unicast+0x449/0x710
[ 2327.027242][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2327.027242][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2327.027242][   T73]      ___sys_sendmsg+0xee/0x170
[ 2327.027242][   T73]      __sys_sendmsg+0xcd/0x170
[ 2327.027242][   T73]      do_syscall_64+0xc6/0x1e0
[ 2327.027242][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2327.027242][   T73] 
[ 2327.028919][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2327.029204][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2327.029204][   T73]      netdev_get_by_index+0x5e/0x80
[ 2327.029204][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2327.029204][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2327.029204][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2327.029204][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2327.029204][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2327.029204][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2327.029204][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2327.029204][   T73]      addrconf_dad_begin+0x310/0x670
[ 2327.029204][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2327.029204][   T73]      process_one_work+0x84d/0x18a0
[ 2327.029204][   T73]      worker_thread+0x587/0xd30
[ 2327.029204][   T73]      kthread+0x28a/0x350
[ 2327.029204][   T73]      ret_from_fork+0x31/0x70
[ 2327.029204][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2327.029204][   T73] 
[ 2327.031106][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2327.031106][   T73]      netdev_get_by_index+0x5e/0x80
[ 2327.031106][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2327.031106][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2327.031106][   T73]      ip6_route_add+0x1c/0x140
[ 2327.031106][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2327.031106][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2327.031106][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2327.031106][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2327.031106][   T73]      netlink_rcv_skb+0x130/0x360
[ 2327.031106][   T73]      netlink_unicast+0x449/0x710
[ 2327.031106][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2327.031106][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2327.031106][   T73]      ___sys_sendmsg+0xee/0x170
[ 2327.031106][   T73]      __sys_sendmsg+0xcd/0x170
[ 2327.031106][   T73]      do_syscall_64+0xc6/0x1e0
[ 2327.031106][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2327.031106][   T73] 
[ 2327.033089][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2327.033089][   T73]      netdev_get_by_index+0x5e/0x80
[ 2327.033089][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2327.033089][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2327.033089][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2327.033089][   T73]      ipv6_add_addr+0x411/0x2000
[ 2327.033089][   T73]      inet6_addr_add+0x30e/0xa40
[ 2327.033089][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2327.033089][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2327.033089][   T73]      netlink_rcv_skb+0x130/0x360
[ 2327.033089][   T73]      netlink_unicast+0x449/0x710
[ 2327.033089][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2327.033089][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2327.033089][   T73]      ___sys_sendmsg+0xee/0x170
[ 2327.033089][   T73]      __sys_sendmsg+0xcd/0x170
[ 2327.033089][   T73]      do_syscall_64+0xc6/0x1e0
[ 2327.033089][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2327.033089][   T73] 
[ 2327.035078][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2327.035078][   T73]      netdev_get_by_index+0x5e/0x80
[ 2327.035078][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2327.035078][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2327.035078][   T73]      ip6_route_add+0x1c/0x140
[ 2327.035078][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2327.035078][   T73]      addrconf_add_dev+0xe2/0x170
[ 2327.035078][   T73]      inet6_addr_add+0x12f/0xa40
[ 2327.035078][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2327.035078][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2327.035078][   T73]      netlink_rcv_skb+0x130/0x360
[ 2327.035078][   T73]      netlink_unicast+0x449/0x710
[ 2327.035078][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2327.035078][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2327.035078][   T73]      ___sys_sendmsg+0xee/0x170
[ 2327.035078][   T73]      __sys_sendmsg+0xcd/0x170
[ 2327.035078][   T73]      do_syscall_64+0xc6/0x1e0
[ 2327.035078][   T73] 
[ 2327.037029][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2327.037029][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2327.037029][   T73]      ipv6_find_idev+0x102/0x170
[ 2327.037029][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2327.037029][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2327.037029][   T73]      netlink_rcv_skb+0x130/0x360
[ 2327.037029][   T73]      netlink_unicast+0x449/0x710
[ 2327.037029][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2327.037029][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2327.037029][   T73]      ___sys_sendmsg+0xee/0x170
[ 2327.037029][   T73]      __sys_sendmsg+0xcd/0x170
[ 2327.037029][   T73]      do_syscall_64+0xc6/0x1e0
[ 2327.037029][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2327.037029][   T73] 
[ 2327.038560][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2327.038560][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2327.038560][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2327.038560][   T73]      ipv6_find_idev+0x102/0x170
[ 2327.038560][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2327.038560][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2327.038560][   T73]      netlink_rcv_skb+0x130/0x360
[ 2327.038560][   T73]      netlink_unicast+0x449/0x710
[ 2327.038560][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2327.038560][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2327.038560][   T73]      ___sys_sendmsg+0xee/0x170
[ 2327.038560][   T73]      __sys_sendmsg+0xcd/0x170
[ 2327.038560][   T73]      do_syscall_64+0xc6/0x1e0
[ 2327.038560][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2327.038560][   T73] 
[ 2327.040235][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2327.040506][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2327.040506][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2327.040506][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2327.040506][   T73]      fib6_nh_init+0xa22/0x1580
[ 2327.040506][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2327.040506][   T73]      ip6_route_add+0x1c/0x140
[ 2327.040506][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2327.040506][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2327.040506][   T73]      netlink_rcv_skb+0x130/0x360
[ 2327.040506][   T73]      netlink_unicast+0x449/0x710
[ 2327.040506][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2327.040506][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2327.040506][   T73]      ___sys_sendmsg+0xee/0x170
[ 2327.040506][   T73]      __sys_sendmsg+0xcd/0x170
[ 2327.040506][   T73]      do_syscall_64+0xc6/0x1e0
[ 2327.040506][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2327.040506][   T73] 
[ 2327.042501][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2327.042501][   T73]      dst_init+0x84/0x4a0
[ 2327.042501][   T73]      dst_alloc+0x97/0x150
[ 2327.042501][   T73]      ip6_dst_alloc+0x23/0x90
[ 2327.042501][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2327.042501][   T73]      ip6_pol_route+0x56f/0x840
[ 2327.042501][   T73]      fib6_rule_lookup+0x456/0x630
[ 2327.042501][   T73]      ip6_route_input+0x59c/0xa50
[ 2327.042501][   T73]      ipv6_rcv+0x397/0x810
[ 2327.042501][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2327.042501][   T73]      process_backlog+0x101/0x620
[ 2327.042501][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2327.042501][   T73]      net_rx_action+0x495/0xbe0
[ 2327.042501][   T73]      __do_softirq+0x1b5/0x7f6
[ 2327.042501][   T73] 
[ 2327.044376][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2327.044376][   T73]      netdev_get_by_index+0x5e/0x80
[ 2327.044376][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2327.044376][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2327.044376][   T73]      ip6_route_add+0x1c/0x140
[ 2327.044376][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2327.044376][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2327.044376][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2327.044376][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2327.044376][   T73]      netlink_rcv_skb+0x130/0x360
[ 2327.044376][   T73]      netlink_unicast+0x449/0x710
[ 2327.044376][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2327.044376][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2327.044376][   T73]      ___sys_sendmsg+0xee/0x170
[ 2327.044376][   T73]      __sys_sendmsg+0xcd/0x170
[ 2327.044376][   T73]      do_syscall_64+0xc6/0x1e0
[ 2327.044376][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2327.044376][   T73] 
[ 2327.046622][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2327.046622][   T73]      netdev_get_by_index+0x5e/0x80
[ 2327.046622][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2327.046622][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2327.046622][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2327.046622][   T73]      ipv6_add_addr+0x411/0x2000
[ 2327.046622][   T73]      inet6_addr_add+0x30e/0xa40
[ 2327.046622][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2327.046622][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2327.046622][   T73]      netlink_rcv_skb+0x130/0x360
[ 2327.046622][   T73]      netlink_unicast+0x449/0x710
[ 2327.046622][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2327.046622][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2327.046622][   T73]      ___sys_sendmsg+0xee/0x170
[ 2327.046622][   T73]      __sys_sendmsg+0xcd/0x170
[ 2327.046622][   T73]      do_syscall_64+0xc6/0x1e0
[ 2327.046622][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2327.046622][   T73] 
[ 2327.048849][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2327.048849][   T73]      netdev_get_by_index+0x5e/0x80
[ 2327.048849][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2327.048849][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2327.048849][   T73]      ip6_route_add+0x1c/0x140
[ 2327.048849][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2327.048849][   T73]      addrconf_add_dev+0xe2/0x170
[ 2327.048849][   T73]      inet6_addr_add+0x12f/0xa40
[ 2327.048849][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2327.048849][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2327.048849][   T73]      netlink_rcv_skb+0x130/0x360
[ 2327.048849][   T73]      netlink_unicast+0x449/0x710
[ 2327.048849][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2327.048849][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2327.048849][   T73]      ___sys_sendmsg+0xee/0x170
[ 2327.048849][   T73]      __sys_sendmsg+0xcd/0x170
[ 2327.048849][   T73]      do_syscall_64+0xc6/0x1e0
[ 2327.048849][   T73] 
[ 2327.050965][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2327.050965][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2327.050965][   T73]      ipv6_find_idev+0x102/0x170
[ 2327.050965][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2327.050965][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2327.050965][   T73]      netlink_rcv_skb+0x130/0x360
[ 2327.050965][   T73]      netlink_unicast+0x449/0x710
[ 2327.050965][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2327.050965][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2327.050965][   T73]      ___sys_sendmsg+0xee/0x170
[ 2327.050965][   T73]      __sys_sendmsg+0xcd/0x170
[ 2327.050965][   T73]      do_syscall_64+0xc6/0x1e0
[ 2327.050965][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2327.050965][   T73] 
[ 2327.052733][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2327.052733][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2327.052733][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2327.052733][   T73]      ipv6_find_idev+0x102/0x170
[ 2327.052733][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2327.052733][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2327.052733][   T73]      netlink_rcv_skb+0x130/0x360
[ 2327.052733][   T73]      netlink_unicast+0x449/0x710
[ 2327.052733][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2327.052733][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2327.052733][   T73]      ___sys_sendmsg+0xee/0x170
[ 2327.052733][   T73]      __sys_sendmsg+0xcd/0x170
[ 2327.052733][   T73]      do_syscall_64+0xc6/0x1e0
[ 2327.052733][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2327.052733][   T73] 
[ 2327.054651][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2327.054924][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2327.054924][   T73]      netdev_get_by_index+0x5e/0x80
[ 2327.054924][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2327.054924][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2327.054924][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2327.054924][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2327.054924][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2327.054924][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2327.054924][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2327.054924][   T73]      addrconf_dad_begin+0x310/0x670
[ 2327.054924][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2327.054924][   T73]      process_one_work+0x84d/0x18a0
[ 2327.054924][   T73]      worker_thread+0x587/0xd30
[ 2327.054924][   T73]      kthread+0x28a/0x350
[ 2327.054924][   T73]      ret_from_fork+0x31/0x70
[ 2327.054924][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2327.054924][   T73] 
[ 2327.057063][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2327.057063][   T73]      netdev_get_by_index+0x5e/0x80
[ 2327.057063][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2327.057063][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2327.057063][   T73]      ip6_route_add+0x1c/0x140
[ 2327.057063][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2327.057063][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2327.057063][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2327.057063][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2327.057063][   T73]      netlink_rcv_skb+0x130/0x360
[ 2327.057063][   T73]      netlink_unicast+0x449/0x710
[ 2327.057063][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2327.057063][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2327.057063][   T73]      ___sys_sendmsg+0xee/0x170
[ 2327.057063][   T73]      __sys_sendmsg+0xcd/0x170
[ 2327.057063][   T73]      do_syscall_64+0xc6/0x1e0
[ 2327.057063][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2327.057063][   T73] 
[ 2327.059750][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2327.059750][   T73]      netdev_get_by_index+0x5e/0x80
[ 2327.059750][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2327.059750][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2327.059750][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2327.059750][   T73]      ipv6_add_addr+0x411/0x2000
[ 2327.059750][   T73]      inet6_addr_add+0x30e/0xa40
[ 2327.059750][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2327.059750][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2327.059750][   T73]      netlink_rcv_skb+0x130/0x360
[ 2327.059750][   T73]      netlink_unicast+0x449/0x710
[ 2327.059750][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2327.059750][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2327.059750][   T73]      ___sys_sendmsg+0xee/0x170
[ 2327.059750][   T73]      __sys_sendmsg+0xcd/0x170
[ 2327.059750][   T73]      do_syscall_64+0xc6/0x1e0
[ 2327.059750][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2327.059750][   T73] 
[ 2327.061980][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2327.061980][   T73]      netdev_get_by_index+0x5e/0x80
[ 2327.061980][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2327.061980][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2327.061980][   T73]      ip6_route_add+0x1c/0x140
[ 2327.061980][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2327.061980][   T73]      addrconf_add_dev+0xe2/0x170
[ 2327.061980][   T73]      inet6_addr_add+0x12f/0xa40
[ 2327.061980][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2327.061980][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2327.061980][   T73]      netlink_rcv_skb+0x130/0x360
[ 2327.061980][   T73]      netlink_unicast+0x449/0x710
[ 2327.061980][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2327.061980][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2327.061980][   T73]      ___sys_sendmsg+0xee/0x170
[ 2327.061980][   T73]      __sys_sendmsg+0xcd/0x170
[ 2327.061980][   T73]      do_syscall_64+0xc6/0x1e0
[ 2327.061980][   T73] 
[ 2327.064240][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2327.064240][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2327.064240][   T73]      ipv6_find_idev+0x102/0x170
[ 2327.064240][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2327.064240][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2327.064240][   T73]      netlink_rcv_skb+0x130/0x360
[ 2327.064240][   T73]      netlink_unicast+0x449/0x710
[ 2327.064240][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2327.064240][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2327.064240][   T73]      ___sys_sendmsg+0xee/0x170
[ 2327.064240][   T73]      __sys_sendmsg+0xcd/0x170
[ 2327.064240][   T73]      do_syscall_64+0xc6/0x1e0
[ 2327.064240][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2327.064240][   T73] 
[ 2327.065946][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2327.065946][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2327.065946][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2327.065946][   T73]      ipv6_find_idev+0x102/0x170
[ 2327.065946][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2327.065946][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2327.065946][   T73]      netlink_rcv_skb+0x130/0x360
[ 2327.065946][   T73]      netlink_unicast+0x449/0x710
[ 2327.065946][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2327.065946][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2327.065946][   T73]      ___sys_sendmsg+0xee/0x170
[ 2327.065946][   T73]      __sys_sendmsg+0xcd/0x170
[ 2327.065946][   T73]      do_syscall_64+0xc6/0x1e0
[ 2327.065946][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2327.065946][   T73] 
[ 2337.103771][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2337.104222][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2337.104222][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2337.104222][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2337.104222][   T73]      fib6_nh_init+0xa22/0x1580
[ 2337.104222][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2337.104222][   T73]      ip6_route_add+0x1c/0x140
[ 2337.104222][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2337.104222][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2337.104222][   T73]      netlink_rcv_skb+0x130/0x360
[ 2337.104222][   T73]      netlink_unicast+0x449/0x710
[ 2337.104222][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2337.104222][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2337.104222][   T73]      ___sys_sendmsg+0xee/0x170
[ 2337.104222][   T73]      __sys_sendmsg+0xcd/0x170
[ 2337.104222][   T73]      do_syscall_64+0xc6/0x1e0
[ 2337.104222][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2337.104222][   T73] 
[ 2337.106137][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2337.106137][   T73]      dst_init+0x84/0x4a0
[ 2337.106137][   T73]      dst_alloc+0x97/0x150
[ 2337.106137][   T73]      ip6_dst_alloc+0x23/0x90
[ 2337.106137][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2337.106137][   T73]      ip6_pol_route+0x56f/0x840
[ 2337.106137][   T73]      fib6_rule_lookup+0x456/0x630
[ 2337.106137][   T73]      ip6_route_input+0x59c/0xa50
[ 2337.106137][   T73]      ipv6_rcv+0x397/0x810
[ 2337.106137][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2337.106137][   T73]      process_backlog+0x101/0x620
[ 2337.106137][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2337.106137][   T73]      net_rx_action+0x495/0xbe0
[ 2337.106137][   T73]      __do_softirq+0x1b5/0x7f6
[ 2337.106137][   T73] 
[ 2337.107785][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2337.107785][   T73]      netdev_get_by_index+0x5e/0x80
[ 2337.107785][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2337.107785][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2337.107785][   T73]      ip6_route_add+0x1c/0x140
[ 2337.107785][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2337.107785][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2337.107785][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2337.107785][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2337.107785][   T73]      netlink_rcv_skb+0x130/0x360
[ 2337.107785][   T73]      netlink_unicast+0x449/0x710
[ 2337.107785][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2337.107785][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2337.107785][   T73]      ___sys_sendmsg+0xee/0x170
[ 2337.107785][   T73]      __sys_sendmsg+0xcd/0x170
[ 2337.107785][   T73]      do_syscall_64+0xc6/0x1e0
[ 2337.107785][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2337.107785][   T73] 
[ 2337.109800][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2337.109800][   T73]      netdev_get_by_index+0x5e/0x80
[ 2337.109800][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2337.109800][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2337.109800][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2337.109800][   T73]      ipv6_add_addr+0x411/0x2000
[ 2337.109800][   T73]      inet6_addr_add+0x30e/0xa40
[ 2337.109800][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2337.109800][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2337.109800][   T73]      netlink_rcv_skb+0x130/0x360
[ 2337.109800][   T73]      netlink_unicast+0x449/0x710
[ 2337.109800][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2337.109800][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2337.109800][   T73]      ___sys_sendmsg+0xee/0x170
[ 2337.109800][   T73]      __sys_sendmsg+0xcd/0x170
[ 2337.109800][   T73]      do_syscall_64+0xc6/0x1e0
[ 2337.109800][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2337.109800][   T73] 
[ 2337.111808][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2337.111808][   T73]      netdev_get_by_index+0x5e/0x80
[ 2337.111808][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2337.111808][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2337.111808][   T73]      ip6_route_add+0x1c/0x140
[ 2337.111808][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2337.111808][   T73]      addrconf_add_dev+0xe2/0x170
[ 2337.111808][   T73]      inet6_addr_add+0x12f/0xa40
[ 2337.111808][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2337.111808][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2337.111808][   T73]      netlink_rcv_skb+0x130/0x360
[ 2337.111808][   T73]      netlink_unicast+0x449/0x710
[ 2337.111808][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2337.111808][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2337.111808][   T73]      ___sys_sendmsg+0xee/0x170
[ 2337.111808][   T73]      __sys_sendmsg+0xcd/0x170
[ 2337.111808][   T73]      do_syscall_64+0xc6/0x1e0
[ 2337.111808][   T73] 
[ 2337.113791][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2337.113791][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2337.113791][   T73]      ipv6_find_idev+0x102/0x170
[ 2337.113791][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2337.113791][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2337.113791][   T73]      netlink_rcv_skb+0x130/0x360
[ 2337.113791][   T73]      netlink_unicast+0x449/0x710
[ 2337.113791][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2337.113791][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2337.113791][   T73]      ___sys_sendmsg+0xee/0x170
[ 2337.113791][   T73]      __sys_sendmsg+0xcd/0x170
[ 2337.113791][   T73]      do_syscall_64+0xc6/0x1e0
[ 2337.113791][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2337.113791][   T73] 
[ 2337.115349][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2337.115349][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2337.115349][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2337.115349][   T73]      ipv6_find_idev+0x102/0x170
[ 2337.115349][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2337.115349][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2337.115349][   T73]      netlink_rcv_skb+0x130/0x360
[ 2337.115349][   T73]      netlink_unicast+0x449/0x710
[ 2337.115349][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2337.115349][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2337.115349][   T73]      ___sys_sendmsg+0xee/0x170
[ 2337.115349][   T73]      __sys_sendmsg+0xcd/0x170
[ 2337.115349][   T73]      do_syscall_64+0xc6/0x1e0
[ 2337.115349][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2337.115349][   T73] 
[ 2337.117077][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2337.117363][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2337.117363][   T73]      netdev_get_by_index+0x5e/0x80
[ 2337.117363][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2337.117363][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2337.117363][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2337.117363][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2337.117363][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2337.117363][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2337.117363][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2337.117363][   T73]      addrconf_dad_begin+0x310/0x670
[ 2337.117363][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2337.117363][   T73]      process_one_work+0x84d/0x18a0
[ 2337.117363][   T73]      worker_thread+0x587/0xd30
[ 2337.117363][   T73]      kthread+0x28a/0x350
[ 2337.117363][   T73]      ret_from_fork+0x31/0x70
[ 2337.117363][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2337.117363][   T73] 
[ 2337.119291][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2337.119291][   T73]      netdev_get_by_index+0x5e/0x80
[ 2337.119291][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2337.119291][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2337.119291][   T73]      ip6_route_add+0x1c/0x140
[ 2337.119291][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2337.119291][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2337.119291][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2337.119291][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2337.119291][   T73]      netlink_rcv_skb+0x130/0x360
[ 2337.119291][   T73]      netlink_unicast+0x449/0x710
[ 2337.119291][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2337.119291][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2337.119291][   T73]      ___sys_sendmsg+0xee/0x170
[ 2337.119291][   T73]      __sys_sendmsg+0xcd/0x170
[ 2337.119291][   T73]      do_syscall_64+0xc6/0x1e0
[ 2337.119291][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2337.119291][   T73] 
[ 2337.121302][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2337.121302][   T73]      netdev_get_by_index+0x5e/0x80
[ 2337.121302][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2337.121302][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2337.121302][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2337.121302][   T73]      ipv6_add_addr+0x411/0x2000
[ 2337.121302][   T73]      inet6_addr_add+0x30e/0xa40
[ 2337.121302][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2337.121302][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2337.121302][   T73]      netlink_rcv_skb+0x130/0x360
[ 2337.121302][   T73]      netlink_unicast+0x449/0x710
[ 2337.121302][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2337.121302][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2337.121302][   T73]      ___sys_sendmsg+0xee/0x170
[ 2337.121302][   T73]      __sys_sendmsg+0xcd/0x170
[ 2337.121302][   T73]      do_syscall_64+0xc6/0x1e0
[ 2337.121302][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2337.121302][   T73] 
[ 2337.123332][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2337.123332][   T73]      netdev_get_by_index+0x5e/0x80
[ 2337.123332][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2337.123332][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2337.123332][   T73]      ip6_route_add+0x1c/0x140
[ 2337.123332][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2337.123332][   T73]      addrconf_add_dev+0xe2/0x170
[ 2337.123332][   T73]      inet6_addr_add+0x12f/0xa40
[ 2337.123332][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2337.123332][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2337.123332][   T73]      netlink_rcv_skb+0x130/0x360
[ 2337.123332][   T73]      netlink_unicast+0x449/0x710
[ 2337.123332][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2337.123332][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2337.123332][   T73]      ___sys_sendmsg+0xee/0x170
[ 2337.123332][   T73]      __sys_sendmsg+0xcd/0x170
[ 2337.123332][   T73]      do_syscall_64+0xc6/0x1e0
[ 2337.123332][   T73] 
[ 2337.125700][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2337.125700][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2337.125700][   T73]      ipv6_find_idev+0x102/0x170
[ 2337.125700][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2337.125700][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2337.125700][   T73]      netlink_rcv_skb+0x130/0x360
[ 2337.125700][   T73]      netlink_unicast+0x449/0x710
[ 2337.125700][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2337.125700][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2337.125700][   T73]      ___sys_sendmsg+0xee/0x170
[ 2337.125700][   T73]      __sys_sendmsg+0xcd/0x170
[ 2337.125700][   T73]      do_syscall_64+0xc6/0x1e0
[ 2337.125700][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2337.125700][   T73] 
[ 2337.127258][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2337.127258][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2337.127258][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2337.127258][   T73]      ipv6_find_idev+0x102/0x170
[ 2337.127258][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2337.127258][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2337.127258][   T73]      netlink_rcv_skb+0x130/0x360
[ 2337.127258][   T73]      netlink_unicast+0x449/0x710
[ 2337.127258][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2337.127258][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2337.127258][   T73]      ___sys_sendmsg+0xee/0x170
[ 2337.127258][   T73]      __sys_sendmsg+0xcd/0x170
[ 2337.127258][   T73]      do_syscall_64+0xc6/0x1e0
[ 2337.127258][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2337.127258][   T73] 
[ 2337.128969][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2337.129241][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2337.129241][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2337.129241][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2337.129241][   T73]      fib6_nh_init+0xa22/0x1580
[ 2337.129241][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2337.129241][   T73]      ip6_route_add+0x1c/0x140
[ 2337.129241][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2337.129241][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2337.129241][   T73]      netlink_rcv_skb+0x130/0x360
[ 2337.129241][   T73]      netlink_unicast+0x449/0x710
[ 2337.129241][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2337.129241][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2337.129241][   T73]      ___sys_sendmsg+0xee/0x170
[ 2337.129241][   T73]      __sys_sendmsg+0xcd/0x170
[ 2337.129241][   T73]      do_syscall_64+0xc6/0x1e0
[ 2337.129241][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2337.129241][   T73] 
[ 2337.131315][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2337.131315][   T73]      dst_init+0x84/0x4a0
[ 2337.131315][   T73]      dst_alloc+0x97/0x150
[ 2337.131315][   T73]      ip6_dst_alloc+0x23/0x90
[ 2337.131315][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2337.131315][   T73]      ip6_pol_route+0x56f/0x840
[ 2337.131315][   T73]      fib6_rule_lookup+0x456/0x630
[ 2337.131315][   T73]      ip6_route_input+0x59c/0xa50
[ 2337.131315][   T73]      ipv6_rcv+0x397/0x810
[ 2337.131315][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2337.131315][   T73]      process_backlog+0x101/0x620
[ 2337.131315][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2337.131315][   T73]      net_rx_action+0x495/0xbe0
[ 2337.131315][   T73]      __do_softirq+0x1b5/0x7f6
[ 2337.131315][   T73] 
[ 2337.133138][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2337.133138][   T73]      netdev_get_by_index+0x5e/0x80
[ 2337.133138][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2337.133138][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2337.133138][   T73]      ip6_route_add+0x1c/0x140
[ 2337.133138][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2337.133138][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2337.133138][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2337.133138][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2337.133138][   T73]      netlink_rcv_skb+0x130/0x360
[ 2337.133138][   T73]      netlink_unicast+0x449/0x710
[ 2337.133138][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2337.133138][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2337.133138][   T73]      ___sys_sendmsg+0xee/0x170
[ 2337.133138][   T73]      __sys_sendmsg+0xcd/0x170
[ 2337.133138][   T73]      do_syscall_64+0xc6/0x1e0
[ 2337.133138][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2337.133138][   T73] 
[ 2337.135398][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2337.135398][   T73]      netdev_get_by_index+0x5e/0x80
[ 2337.135398][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2337.135398][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2337.135398][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2337.135398][   T73]      ipv6_add_addr+0x411/0x2000
[ 2337.135398][   T73]      inet6_addr_add+0x30e/0xa40
[ 2337.135398][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2337.135398][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2337.135398][   T73]      netlink_rcv_skb+0x130/0x360
[ 2337.135398][   T73]      netlink_unicast+0x449/0x710
[ 2337.135398][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2337.135398][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2337.135398][   T73]      ___sys_sendmsg+0xee/0x170
[ 2337.135398][   T73]      __sys_sendmsg+0xcd/0x170
[ 2337.135398][   T73]      do_syscall_64+0xc6/0x1e0
[ 2337.135398][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2337.135398][   T73] 
[ 2337.137708][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2337.137708][   T73]      netdev_get_by_index+0x5e/0x80
[ 2337.137708][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2337.137708][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2337.137708][   T73]      ip6_route_add+0x1c/0x140
[ 2337.137708][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2337.137708][   T73]      addrconf_add_dev+0xe2/0x170
[ 2337.137708][   T73]      inet6_addr_add+0x12f/0xa40
[ 2337.137708][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2337.137708][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2337.137708][   T73]      netlink_rcv_skb+0x130/0x360
[ 2337.137708][   T73]      netlink_unicast+0x449/0x710
[ 2337.137708][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2337.137708][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2337.137708][   T73]      ___sys_sendmsg+0xee/0x170
[ 2337.137708][   T73]      __sys_sendmsg+0xcd/0x170
[ 2337.137708][   T73]      do_syscall_64+0xc6/0x1e0
[ 2337.137708][   T73] 
[ 2337.139926][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2337.139926][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2337.139926][   T73]      ipv6_find_idev+0x102/0x170
[ 2337.139926][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2337.139926][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2337.139926][   T73]      netlink_rcv_skb+0x130/0x360
[ 2337.139926][   T73]      netlink_unicast+0x449/0x710
[ 2337.139926][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2337.139926][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2337.139926][   T73]      ___sys_sendmsg+0xee/0x170
[ 2337.139926][   T73]      __sys_sendmsg+0xcd/0x170
[ 2337.139926][   T73]      do_syscall_64+0xc6/0x1e0
[ 2337.139926][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2337.139926][   T73] 
[ 2337.141591][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2337.141591][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2337.141591][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2337.141591][   T73]      ipv6_find_idev+0x102/0x170
[ 2337.141591][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2337.141591][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2337.141591][   T73]      netlink_rcv_skb+0x130/0x360
[ 2337.141591][   T73]      netlink_unicast+0x449/0x710
[ 2337.141591][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2337.141591][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2337.141591][   T73]      ___sys_sendmsg+0xee/0x170
[ 2337.141591][   T73]      __sys_sendmsg+0xcd/0x170
[ 2337.141591][   T73]      do_syscall_64+0xc6/0x1e0
[ 2337.141591][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2337.141591][   T73] 
[ 2337.143527][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2337.144247][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2337.144247][   T73]      netdev_get_by_index+0x5e/0x80
[ 2337.144247][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2337.144247][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2337.144247][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2337.144247][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2337.144247][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2337.144247][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2337.144247][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2337.144247][   T73]      addrconf_dad_begin+0x310/0x670
[ 2337.144247][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2337.144247][   T73]      process_one_work+0x84d/0x18a0
[ 2337.144247][   T73]      worker_thread+0x587/0xd30
[ 2337.144247][   T73]      kthread+0x28a/0x350
[ 2337.144247][   T73]      ret_from_fork+0x31/0x70
[ 2337.144247][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2337.144247][   T73] 
[ 2337.146694][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2337.146694][   T73]      netdev_get_by_index+0x5e/0x80
[ 2337.146694][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2337.146694][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2337.146694][   T73]      ip6_route_add+0x1c/0x140
[ 2337.146694][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2337.146694][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2337.146694][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2337.146694][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2337.146694][   T73]      netlink_rcv_skb+0x130/0x360
[ 2337.146694][   T73]      netlink_unicast+0x449/0x710
[ 2337.146694][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2337.146694][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2337.146694][   T73]      ___sys_sendmsg+0xee/0x170
[ 2337.146694][   T73]      __sys_sendmsg+0xcd/0x170
[ 2337.146694][   T73]      do_syscall_64+0xc6/0x1e0
[ 2337.146694][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2337.146694][   T73] 
[ 2337.148820][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2337.148820][   T73]      netdev_get_by_index+0x5e/0x80
[ 2337.148820][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2337.148820][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2337.148820][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2337.148820][   T73]      ipv6_add_addr+0x411/0x2000
[ 2337.148820][   T73]      inet6_addr_add+0x30e/0xa40
[ 2337.148820][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2337.148820][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2337.148820][   T73]      netlink_rcv_skb+0x130/0x360
[ 2337.148820][   T73]      netlink_unicast+0x449/0x710
[ 2337.148820][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2337.148820][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2337.148820][   T73]      ___sys_sendmsg+0xee/0x170
[ 2337.148820][   T73]      __sys_sendmsg+0xcd/0x170
[ 2337.148820][   T73]      do_syscall_64+0xc6/0x1e0
[ 2337.148820][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2337.148820][   T73] 
[ 2337.151512][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2337.151512][   T73]      netdev_get_by_index+0x5e/0x80
[ 2337.151512][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2337.151512][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2337.151512][   T73]      ip6_route_add+0x1c/0x140
[ 2337.151512][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2337.151512][   T73]      addrconf_add_dev+0xe2/0x170
[ 2337.151512][   T73]      inet6_addr_add+0x12f/0xa40
[ 2337.151512][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2337.151512][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2337.151512][   T73]      netlink_rcv_skb+0x130/0x360
[ 2337.151512][   T73]      netlink_unicast+0x449/0x710
[ 2337.151512][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2337.151512][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2337.151512][   T73]      ___sys_sendmsg+0xee/0x170
[ 2337.151512][   T73]      __sys_sendmsg+0xcd/0x170
[ 2337.151512][   T73]      do_syscall_64+0xc6/0x1e0
[ 2337.151512][   T73] 
[ 2337.153676][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2337.153676][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2337.153676][   T73]      ipv6_find_idev+0x102/0x170
[ 2337.153676][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2337.153676][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2337.153676][   T73]      netlink_rcv_skb+0x130/0x360
[ 2337.153676][   T73]      netlink_unicast+0x449/0x710
[ 2337.153676][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2337.153676][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2337.153676][   T73]      ___sys_sendmsg+0xee/0x170
[ 2337.153676][   T73]      __sys_sendmsg+0xcd/0x170
[ 2337.153676][   T73]      do_syscall_64+0xc6/0x1e0
[ 2337.153676][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2337.153676][   T73] 
[ 2337.155413][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2337.155413][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2337.155413][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2337.155413][   T73]      ipv6_find_idev+0x102/0x170
[ 2337.155413][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2337.155413][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2337.155413][   T73]      netlink_rcv_skb+0x130/0x360
[ 2337.155413][   T73]      netlink_unicast+0x449/0x710
[ 2337.155413][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2337.155413][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2337.155413][   T73]      ___sys_sendmsg+0xee/0x170
[ 2337.155413][   T73]      __sys_sendmsg+0xcd/0x170
[ 2337.155413][   T73]      do_syscall_64+0xc6/0x1e0
[ 2337.155413][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2337.155413][   T73] 
[ 2347.399846][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2347.400349][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2347.400349][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2347.400349][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2347.400349][   T73]      fib6_nh_init+0xa22/0x1580
[ 2347.400349][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2347.400349][   T73]      ip6_route_add+0x1c/0x140
[ 2347.400349][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2347.400349][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2347.400349][   T73]      netlink_rcv_skb+0x130/0x360
[ 2347.400349][   T73]      netlink_unicast+0x449/0x710
[ 2347.400349][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2347.400349][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2347.400349][   T73]      ___sys_sendmsg+0xee/0x170
[ 2347.400349][   T73]      __sys_sendmsg+0xcd/0x170
[ 2347.400349][   T73]      do_syscall_64+0xc6/0x1e0
[ 2347.400349][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2347.400349][   T73] 
[ 2347.402236][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2347.402236][   T73]      dst_init+0x84/0x4a0
[ 2347.402236][   T73]      dst_alloc+0x97/0x150
[ 2347.402236][   T73]      ip6_dst_alloc+0x23/0x90
[ 2347.402236][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2347.402236][   T73]      ip6_pol_route+0x56f/0x840
[ 2347.402236][   T73]      fib6_rule_lookup+0x456/0x630
[ 2347.402236][   T73]      ip6_route_input+0x59c/0xa50
[ 2347.402236][   T73]      ipv6_rcv+0x397/0x810
[ 2347.402236][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2347.402236][   T73]      process_backlog+0x101/0x620
[ 2347.402236][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2347.402236][   T73]      net_rx_action+0x495/0xbe0
[ 2347.402236][   T73]      __do_softirq+0x1b5/0x7f6
[ 2347.402236][   T73] 
[ 2347.403910][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2347.403910][   T73]      netdev_get_by_index+0x5e/0x80
[ 2347.403910][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2347.403910][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2347.403910][   T73]      ip6_route_add+0x1c/0x140
[ 2347.403910][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2347.403910][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2347.403910][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2347.403910][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2347.403910][   T73]      netlink_rcv_skb+0x130/0x360
[ 2347.403910][   T73]      netlink_unicast+0x449/0x710
[ 2347.403910][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2347.403910][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2347.403910][   T73]      ___sys_sendmsg+0xee/0x170
[ 2347.403910][   T73]      __sys_sendmsg+0xcd/0x170
[ 2347.403910][   T73]      do_syscall_64+0xc6/0x1e0
[ 2347.403910][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2347.403910][   T73] 
[ 2347.405904][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2347.405904][   T73]      netdev_get_by_index+0x5e/0x80
[ 2347.405904][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2347.405904][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2347.405904][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2347.405904][   T73]      ipv6_add_addr+0x411/0x2000
[ 2347.405904][   T73]      inet6_addr_add+0x30e/0xa40
[ 2347.405904][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2347.405904][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2347.405904][   T73]      netlink_rcv_skb+0x130/0x360
[ 2347.405904][   T73]      netlink_unicast+0x449/0x710
[ 2347.405904][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2347.405904][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2347.405904][   T73]      ___sys_sendmsg+0xee/0x170
[ 2347.405904][   T73]      __sys_sendmsg+0xcd/0x170
[ 2347.405904][   T73]      do_syscall_64+0xc6/0x1e0
[ 2347.405904][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2347.405904][   T73] 
[ 2347.407932][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2347.407932][   T73]      netdev_get_by_index+0x5e/0x80
[ 2347.407932][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2347.407932][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2347.407932][   T73]      ip6_route_add+0x1c/0x140
[ 2347.407932][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2347.407932][   T73]      addrconf_add_dev+0xe2/0x170
[ 2347.407932][   T73]      inet6_addr_add+0x12f/0xa40
[ 2347.407932][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2347.407932][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2347.407932][   T73]      netlink_rcv_skb+0x130/0x360
[ 2347.407932][   T73]      netlink_unicast+0x449/0x710
[ 2347.407932][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2347.407932][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2347.407932][   T73]      ___sys_sendmsg+0xee/0x170
[ 2347.407932][   T73]      __sys_sendmsg+0xcd/0x170
[ 2347.407932][   T73]      do_syscall_64+0xc6/0x1e0
[ 2347.407932][   T73] 
[ 2347.409899][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2347.409899][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2347.409899][   T73]      ipv6_find_idev+0x102/0x170
[ 2347.409899][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2347.409899][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2347.409899][   T73]      netlink_rcv_skb+0x130/0x360
[ 2347.409899][   T73]      netlink_unicast+0x449/0x710
[ 2347.409899][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2347.409899][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2347.409899][   T73]      ___sys_sendmsg+0xee/0x170
[ 2347.409899][   T73]      __sys_sendmsg+0xcd/0x170
[ 2347.409899][   T73]      do_syscall_64+0xc6/0x1e0
[ 2347.409899][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2347.409899][   T73] 
[ 2347.411432][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2347.411432][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2347.411432][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2347.411432][   T73]      ipv6_find_idev+0x102/0x170
[ 2347.411432][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2347.411432][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2347.411432][   T73]      netlink_rcv_skb+0x130/0x360
[ 2347.411432][   T73]      netlink_unicast+0x449/0x710
[ 2347.411432][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2347.411432][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2347.411432][   T73]      ___sys_sendmsg+0xee/0x170
[ 2347.411432][   T73]      __sys_sendmsg+0xcd/0x170
[ 2347.411432][   T73]      do_syscall_64+0xc6/0x1e0
[ 2347.411432][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2347.411432][   T73] 
[ 2347.413134][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2347.413416][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2347.413416][   T73]      netdev_get_by_index+0x5e/0x80
[ 2347.413416][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2347.413416][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2347.413416][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2347.413416][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2347.413416][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2347.413416][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2347.413416][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2347.413416][   T73]      addrconf_dad_begin+0x310/0x670
[ 2347.413416][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2347.413416][   T73]      process_one_work+0x84d/0x18a0
[ 2347.413416][   T73]      worker_thread+0x587/0xd30
[ 2347.413416][   T73]      kthread+0x28a/0x350
[ 2347.413416][   T73]      ret_from_fork+0x31/0x70
[ 2347.413416][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2347.413416][   T73] 
[ 2347.415371][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2347.415371][   T73]      netdev_get_by_index+0x5e/0x80
[ 2347.415371][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2347.415371][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2347.415371][   T73]      ip6_route_add+0x1c/0x140
[ 2347.415371][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2347.415371][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2347.415371][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2347.415371][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2347.415371][   T73]      netlink_rcv_skb+0x130/0x360
[ 2347.415371][   T73]      netlink_unicast+0x449/0x710
[ 2347.415371][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2347.415371][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2347.415371][   T73]      ___sys_sendmsg+0xee/0x170
[ 2347.415371][   T73]      __sys_sendmsg+0xcd/0x170
[ 2347.415371][   T73]      do_syscall_64+0xc6/0x1e0
[ 2347.415371][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2347.415371][   T73] 
[ 2347.417365][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2347.417365][   T73]      netdev_get_by_index+0x5e/0x80
[ 2347.417365][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2347.417365][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2347.417365][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2347.417365][   T73]      ipv6_add_addr+0x411/0x2000
[ 2347.417365][   T73]      inet6_addr_add+0x30e/0xa40
[ 2347.417365][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2347.417365][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2347.417365][   T73]      netlink_rcv_skb+0x130/0x360
[ 2347.417365][   T73]      netlink_unicast+0x449/0x710
[ 2347.417365][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2347.417365][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2347.417365][   T73]      ___sys_sendmsg+0xee/0x170
[ 2347.417365][   T73]      __sys_sendmsg+0xcd/0x170
[ 2347.417365][   T73]      do_syscall_64+0xc6/0x1e0
[ 2347.417365][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2347.417365][   T73] 
[ 2347.419362][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2347.419362][   T73]      netdev_get_by_index+0x5e/0x80
[ 2347.419362][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2347.419362][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2347.419362][   T73]      ip6_route_add+0x1c/0x140
[ 2347.419362][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2347.419362][   T73]      addrconf_add_dev+0xe2/0x170
[ 2347.419362][   T73]      inet6_addr_add+0x12f/0xa40
[ 2347.419362][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2347.419362][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2347.419362][   T73]      netlink_rcv_skb+0x130/0x360
[ 2347.419362][   T73]      netlink_unicast+0x449/0x710
[ 2347.419362][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2347.419362][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2347.419362][   T73]      ___sys_sendmsg+0xee/0x170
[ 2347.419362][   T73]      __sys_sendmsg+0xcd/0x170
[ 2347.419362][   T73]      do_syscall_64+0xc6/0x1e0
[ 2347.419362][   T73] 
[ 2347.421316][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2347.421316][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2347.421316][   T73]      ipv6_find_idev+0x102/0x170
[ 2347.421316][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2347.421316][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2347.421316][   T73]      netlink_rcv_skb+0x130/0x360
[ 2347.421316][   T73]      netlink_unicast+0x449/0x710
[ 2347.421316][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2347.421316][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2347.421316][   T73]      ___sys_sendmsg+0xee/0x170
[ 2347.421316][   T73]      __sys_sendmsg+0xcd/0x170
[ 2347.421316][   T73]      do_syscall_64+0xc6/0x1e0
[ 2347.421316][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2347.421316][   T73] 
[ 2347.422844][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2347.422844][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2347.422844][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2347.422844][   T73]      ipv6_find_idev+0x102/0x170
[ 2347.422844][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2347.422844][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2347.422844][   T73]      netlink_rcv_skb+0x130/0x360
[ 2347.422844][   T73]      netlink_unicast+0x449/0x710
[ 2347.422844][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2347.422844][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2347.422844][   T73]      ___sys_sendmsg+0xee/0x170
[ 2347.422844][   T73]      __sys_sendmsg+0xcd/0x170
[ 2347.422844][   T73]      do_syscall_64+0xc6/0x1e0
[ 2347.422844][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2347.422844][   T73] 
[ 2347.424526][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2347.424833][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2347.424833][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2347.424833][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2347.424833][   T73]      fib6_nh_init+0xa22/0x1580
[ 2347.424833][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2347.424833][   T73]      ip6_route_add+0x1c/0x140
[ 2347.424833][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2347.424833][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2347.424833][   T73]      netlink_rcv_skb+0x130/0x360
[ 2347.424833][   T73]      netlink_unicast+0x449/0x710
[ 2347.424833][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2347.424833][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2347.424833][   T73]      ___sys_sendmsg+0xee/0x170
[ 2347.424833][   T73]      __sys_sendmsg+0xcd/0x170
[ 2347.424833][   T73]      do_syscall_64+0xc6/0x1e0
[ 2347.424833][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2347.424833][   T73] 
[ 2347.426835][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2347.426835][   T73]      dst_init+0x84/0x4a0
[ 2347.426835][   T73]      dst_alloc+0x97/0x150
[ 2347.426835][   T73]      ip6_dst_alloc+0x23/0x90
[ 2347.426835][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2347.426835][   T73]      ip6_pol_route+0x56f/0x840
[ 2347.426835][   T73]      fib6_rule_lookup+0x456/0x630
[ 2347.426835][   T73]      ip6_route_input+0x59c/0xa50
[ 2347.426835][   T73]      ipv6_rcv+0x397/0x810
[ 2347.426835][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2347.426835][   T73]      process_backlog+0x101/0x620
[ 2347.426835][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2347.426835][   T73]      net_rx_action+0x495/0xbe0
[ 2347.426835][   T73]      __do_softirq+0x1b5/0x7f6
[ 2347.426835][   T73] 
[ 2347.428764][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2347.428764][   T73]      netdev_get_by_index+0x5e/0x80
[ 2347.428764][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2347.428764][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2347.428764][   T73]      ip6_route_add+0x1c/0x140
[ 2347.428764][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2347.428764][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2347.428764][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2347.428764][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2347.428764][   T73]      netlink_rcv_skb+0x130/0x360
[ 2347.428764][   T73]      netlink_unicast+0x449/0x710
[ 2347.428764][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2347.428764][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2347.428764][   T73]      ___sys_sendmsg+0xee/0x170
[ 2347.428764][   T73]      __sys_sendmsg+0xcd/0x170
[ 2347.428764][   T73]      do_syscall_64+0xc6/0x1e0
[ 2347.428764][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2347.428764][   T73] 
[ 2347.430935][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2347.430935][   T73]      netdev_get_by_index+0x5e/0x80
[ 2347.430935][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2347.430935][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2347.430935][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2347.430935][   T73]      ipv6_add_addr+0x411/0x2000
[ 2347.430935][   T73]      inet6_addr_add+0x30e/0xa40
[ 2347.430935][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2347.430935][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2347.430935][   T73]      netlink_rcv_skb+0x130/0x360
[ 2347.430935][   T73]      netlink_unicast+0x449/0x710
[ 2347.430935][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2347.430935][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2347.430935][   T73]      ___sys_sendmsg+0xee/0x170
[ 2347.430935][   T73]      __sys_sendmsg+0xcd/0x170
[ 2347.430935][   T73]      do_syscall_64+0xc6/0x1e0
[ 2347.430935][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2347.430935][   T73] 
[ 2347.433562][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2347.433562][   T73]      netdev_get_by_index+0x5e/0x80
[ 2347.433562][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2347.433562][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2347.433562][   T73]      ip6_route_add+0x1c/0x140
[ 2347.433562][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2347.433562][   T73]      addrconf_add_dev+0xe2/0x170
[ 2347.433562][   T73]      inet6_addr_add+0x12f/0xa40
[ 2347.433562][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2347.433562][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2347.433562][   T73]      netlink_rcv_skb+0x130/0x360
[ 2347.433562][   T73]      netlink_unicast+0x449/0x710
[ 2347.433562][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2347.433562][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2347.433562][   T73]      ___sys_sendmsg+0xee/0x170
[ 2347.433562][   T73]      __sys_sendmsg+0xcd/0x170
[ 2347.433562][   T73]      do_syscall_64+0xc6/0x1e0
[ 2347.433562][   T73] 
[ 2347.435768][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2347.435768][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2347.435768][   T73]      ipv6_find_idev+0x102/0x170
[ 2347.435768][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2347.435768][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2347.435768][   T73]      netlink_rcv_skb+0x130/0x360
[ 2347.435768][   T73]      netlink_unicast+0x449/0x710
[ 2347.435768][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2347.435768][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2347.435768][   T73]      ___sys_sendmsg+0xee/0x170
[ 2347.435768][   T73]      __sys_sendmsg+0xcd/0x170
[ 2347.435768][   T73]      do_syscall_64+0xc6/0x1e0
[ 2347.435768][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2347.435768][   T73] 
[ 2347.437548][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2347.437548][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2347.437548][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2347.437548][   T73]      ipv6_find_idev+0x102/0x170
[ 2347.437548][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2347.437548][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2347.437548][   T73]      netlink_rcv_skb+0x130/0x360
[ 2347.437548][   T73]      netlink_unicast+0x449/0x710
[ 2347.437548][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2347.437548][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2347.437548][   T73]      ___sys_sendmsg+0xee/0x170
[ 2347.437548][   T73]      __sys_sendmsg+0xcd/0x170
[ 2347.437548][   T73]      do_syscall_64+0xc6/0x1e0
[ 2347.437548][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2347.437548][   T73] 
[ 2347.439411][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2347.439758][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2347.439758][   T73]      netdev_get_by_index+0x5e/0x80
[ 2347.439758][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2347.439758][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2347.439758][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2347.439758][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2347.439758][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2347.439758][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2347.439758][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2347.439758][   T73]      addrconf_dad_begin+0x310/0x670
[ 2347.439758][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2347.439758][   T73]      process_one_work+0x84d/0x18a0
[ 2347.439758][   T73]      worker_thread+0x587/0xd30
[ 2347.439758][   T73]      kthread+0x28a/0x350
[ 2347.439758][   T73]      ret_from_fork+0x31/0x70
[ 2347.439758][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2347.439758][   T73] 
[ 2347.441791][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2347.441791][   T73]      netdev_get_by_index+0x5e/0x80
[ 2347.441791][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2347.441791][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2347.441791][   T73]      ip6_route_add+0x1c/0x140
[ 2347.441791][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2347.441791][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2347.441791][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2347.441791][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2347.441791][   T73]      netlink_rcv_skb+0x130/0x360
[ 2347.441791][   T73]      netlink_unicast+0x449/0x710
[ 2347.441791][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2347.441791][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2347.441791][   T73]      ___sys_sendmsg+0xee/0x170
[ 2347.441791][   T73]      __sys_sendmsg+0xcd/0x170
[ 2347.441791][   T73]      do_syscall_64+0xc6/0x1e0
[ 2347.441791][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2347.441791][   T73] 
[ 2347.443919][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2347.443919][   T73]      netdev_get_by_index+0x5e/0x80
[ 2347.443919][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2347.443919][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2347.443919][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2347.443919][   T73]      ipv6_add_addr+0x411/0x2000
[ 2347.443919][   T73]      inet6_addr_add+0x30e/0xa40
[ 2347.443919][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2347.443919][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2347.443919][   T73]      netlink_rcv_skb+0x130/0x360
[ 2347.443919][   T73]      netlink_unicast+0x449/0x710
[ 2347.443919][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2347.443919][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2347.443919][   T73]      ___sys_sendmsg+0xee/0x170
[ 2347.443919][   T73]      __sys_sendmsg+0xcd/0x170
[ 2347.443919][   T73]      do_syscall_64+0xc6/0x1e0
[ 2347.443919][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2347.443919][   T73] 
[ 2347.446058][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2347.446058][   T73]      netdev_get_by_index+0x5e/0x80
[ 2347.446058][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2347.446058][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2347.446058][   T73]      ip6_route_add+0x1c/0x140
[ 2347.446058][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2347.446058][   T73]      addrconf_add_dev+0xe2/0x170
[ 2347.446058][   T73]      inet6_addr_add+0x12f/0xa40
[ 2347.446058][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2347.446058][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2347.446058][   T73]      netlink_rcv_skb+0x130/0x360
[ 2347.446058][   T73]      netlink_unicast+0x449/0x710
[ 2347.446058][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2347.446058][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2347.446058][   T73]      ___sys_sendmsg+0xee/0x170
[ 2347.446058][   T73]      __sys_sendmsg+0xcd/0x170
[ 2347.446058][   T73]      do_syscall_64+0xc6/0x1e0
[ 2347.446058][   T73] 
[ 2347.448141][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2347.448141][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2347.448141][   T73]      ipv6_find_idev+0x102/0x170
[ 2347.448141][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2347.448141][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2347.448141][   T73]      netlink_rcv_skb+0x130/0x360
[ 2347.448141][   T73]      netlink_unicast+0x449/0x710
[ 2347.448141][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2347.448141][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2347.448141][   T73]      ___sys_sendmsg+0xee/0x170
[ 2347.448141][   T73]      __sys_sendmsg+0xcd/0x170
[ 2347.448141][   T73]      do_syscall_64+0xc6/0x1e0
[ 2347.448141][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2347.448141][   T73] 
[ 2347.449808][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2347.449808][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2347.449808][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2347.449808][   T73]      ipv6_find_idev+0x102/0x170
[ 2347.449808][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2347.449808][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2347.449808][   T73]      netlink_rcv_skb+0x130/0x360
[ 2347.449808][   T73]      netlink_unicast+0x449/0x710
[ 2347.449808][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2347.449808][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2347.449808][   T73]      ___sys_sendmsg+0xee/0x170
[ 2347.449808][   T73]      __sys_sendmsg+0xcd/0x170
[ 2347.449808][   T73]      do_syscall_64+0xc6/0x1e0
[ 2347.449808][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2347.449808][   T73] 
[ 2357.615770][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2357.616253][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2357.616253][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2357.616253][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2357.616253][   T73]      fib6_nh_init+0xa22/0x1580
[ 2357.616253][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2357.616253][   T73]      ip6_route_add+0x1c/0x140
[ 2357.616253][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2357.616253][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2357.616253][   T73]      netlink_rcv_skb+0x130/0x360
[ 2357.616253][   T73]      netlink_unicast+0x449/0x710
[ 2357.616253][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2357.616253][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2357.616253][   T73]      ___sys_sendmsg+0xee/0x170
[ 2357.616253][   T73]      __sys_sendmsg+0xcd/0x170
[ 2357.616253][   T73]      do_syscall_64+0xc6/0x1e0
[ 2357.616253][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2357.616253][   T73] 
[ 2357.618245][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2357.618245][   T73]      dst_init+0x84/0x4a0
[ 2357.618245][   T73]      dst_alloc+0x97/0x150
[ 2357.618245][   T73]      ip6_dst_alloc+0x23/0x90
[ 2357.618245][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2357.618245][   T73]      ip6_pol_route+0x56f/0x840
[ 2357.618245][   T73]      fib6_rule_lookup+0x456/0x630
[ 2357.618245][   T73]      ip6_route_input+0x59c/0xa50
[ 2357.618245][   T73]      ipv6_rcv+0x397/0x810
[ 2357.618245][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2357.618245][   T73]      process_backlog+0x101/0x620
[ 2357.618245][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2357.618245][   T73]      net_rx_action+0x495/0xbe0
[ 2357.618245][   T73]      __do_softirq+0x1b5/0x7f6
[ 2357.618245][   T73] 
[ 2357.619874][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2357.619874][   T73]      netdev_get_by_index+0x5e/0x80
[ 2357.619874][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2357.619874][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2357.619874][   T73]      ip6_route_add+0x1c/0x140
[ 2357.619874][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2357.619874][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2357.619874][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2357.619874][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2357.619874][   T73]      netlink_rcv_skb+0x130/0x360
[ 2357.619874][   T73]      netlink_unicast+0x449/0x710
[ 2357.619874][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2357.619874][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2357.619874][   T73]      ___sys_sendmsg+0xee/0x170
[ 2357.619874][   T73]      __sys_sendmsg+0xcd/0x170
[ 2357.619874][   T73]      do_syscall_64+0xc6/0x1e0
[ 2357.619874][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2357.619874][   T73] 
[ 2357.621875][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2357.621875][   T73]      netdev_get_by_index+0x5e/0x80
[ 2357.621875][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2357.621875][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2357.621875][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2357.621875][   T73]      ipv6_add_addr+0x411/0x2000
[ 2357.621875][   T73]      inet6_addr_add+0x30e/0xa40
[ 2357.621875][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2357.621875][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2357.621875][   T73]      netlink_rcv_skb+0x130/0x360
[ 2357.621875][   T73]      netlink_unicast+0x449/0x710
[ 2357.621875][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2357.621875][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2357.621875][   T73]      ___sys_sendmsg+0xee/0x170
[ 2357.621875][   T73]      __sys_sendmsg+0xcd/0x170
[ 2357.621875][   T73]      do_syscall_64+0xc6/0x1e0
[ 2357.621875][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2357.621875][   T73] 
[ 2357.623869][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2357.623869][   T73]      netdev_get_by_index+0x5e/0x80
[ 2357.623869][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2357.623869][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2357.623869][   T73]      ip6_route_add+0x1c/0x140
[ 2357.623869][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2357.623869][   T73]      addrconf_add_dev+0xe2/0x170
[ 2357.623869][   T73]      inet6_addr_add+0x12f/0xa40
[ 2357.623869][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2357.623869][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2357.623869][   T73]      netlink_rcv_skb+0x130/0x360
[ 2357.623869][   T73]      netlink_unicast+0x449/0x710
[ 2357.623869][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2357.623869][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2357.623869][   T73]      ___sys_sendmsg+0xee/0x170
[ 2357.623869][   T73]      __sys_sendmsg+0xcd/0x170
[ 2357.623869][   T73]      do_syscall_64+0xc6/0x1e0
[ 2357.623869][   T73] 
[ 2357.625827][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2357.625827][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2357.625827][   T73]      ipv6_find_idev+0x102/0x170
[ 2357.625827][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2357.625827][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2357.625827][   T73]      netlink_rcv_skb+0x130/0x360
[ 2357.625827][   T73]      netlink_unicast+0x449/0x710
[ 2357.625827][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2357.625827][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2357.625827][   T73]      ___sys_sendmsg+0xee/0x170
[ 2357.625827][   T73]      __sys_sendmsg+0xcd/0x170
[ 2357.625827][   T73]      do_syscall_64+0xc6/0x1e0
[ 2357.625827][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2357.625827][   T73] 
[ 2357.627363][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2357.627363][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2357.627363][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2357.627363][   T73]      ipv6_find_idev+0x102/0x170
[ 2357.627363][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2357.627363][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2357.627363][   T73]      netlink_rcv_skb+0x130/0x360
[ 2357.627363][   T73]      netlink_unicast+0x449/0x710
[ 2357.627363][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2357.627363][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2357.627363][   T73]      ___sys_sendmsg+0xee/0x170
[ 2357.627363][   T73]      __sys_sendmsg+0xcd/0x170
[ 2357.627363][   T73]      do_syscall_64+0xc6/0x1e0
[ 2357.627363][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2357.627363][   T73] 
[ 2357.629058][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2357.629340][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2357.629340][   T73]      netdev_get_by_index+0x5e/0x80
[ 2357.629340][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2357.629340][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2357.629340][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2357.629340][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2357.629340][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2357.629340][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2357.629340][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2357.629340][   T73]      addrconf_dad_begin+0x310/0x670
[ 2357.629340][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2357.629340][   T73]      process_one_work+0x84d/0x18a0
[ 2357.629340][   T73]      worker_thread+0x587/0xd30
[ 2357.629340][   T73]      kthread+0x28a/0x350
[ 2357.629340][   T73]      ret_from_fork+0x31/0x70
[ 2357.629340][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2357.629340][   T73] 
[ 2357.631238][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2357.631238][   T73]      netdev_get_by_index+0x5e/0x80
[ 2357.631238][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2357.631238][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2357.631238][   T73]      ip6_route_add+0x1c/0x140
[ 2357.631238][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2357.631238][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2357.631238][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2357.631238][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2357.631238][   T73]      netlink_rcv_skb+0x130/0x360
[ 2357.631238][   T73]      netlink_unicast+0x449/0x710
[ 2357.631238][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2357.631238][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2357.631238][   T73]      ___sys_sendmsg+0xee/0x170
[ 2357.631238][   T73]      __sys_sendmsg+0xcd/0x170
[ 2357.631238][   T73]      do_syscall_64+0xc6/0x1e0
[ 2357.631238][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2357.631238][   T73] 
[ 2357.633249][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2357.633249][   T73]      netdev_get_by_index+0x5e/0x80
[ 2357.633249][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2357.633249][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2357.633249][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2357.633249][   T73]      ipv6_add_addr+0x411/0x2000
[ 2357.633249][   T73]      inet6_addr_add+0x30e/0xa40
[ 2357.633249][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2357.633249][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2357.633249][   T73]      netlink_rcv_skb+0x130/0x360
[ 2357.633249][   T73]      netlink_unicast+0x449/0x710
[ 2357.633249][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2357.633249][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2357.633249][   T73]      ___sys_sendmsg+0xee/0x170
[ 2357.633249][   T73]      __sys_sendmsg+0xcd/0x170
[ 2357.633249][   T73]      do_syscall_64+0xc6/0x1e0
[ 2357.633249][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2357.633249][   T73] 
[ 2357.635258][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2357.635258][   T73]      netdev_get_by_index+0x5e/0x80
[ 2357.635258][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2357.635258][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2357.635258][   T73]      ip6_route_add+0x1c/0x140
[ 2357.635258][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2357.635258][   T73]      addrconf_add_dev+0xe2/0x170
[ 2357.635258][   T73]      inet6_addr_add+0x12f/0xa40
[ 2357.635258][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2357.635258][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2357.635258][   T73]      netlink_rcv_skb+0x130/0x360
[ 2357.635258][   T73]      netlink_unicast+0x449/0x710
[ 2357.635258][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2357.635258][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2357.635258][   T73]      ___sys_sendmsg+0xee/0x170
[ 2357.635258][   T73]      __sys_sendmsg+0xcd/0x170
[ 2357.635258][   T73]      do_syscall_64+0xc6/0x1e0
[ 2357.635258][   T73] 
[ 2357.637217][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2357.637217][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2357.637217][   T73]      ipv6_find_idev+0x102/0x170
[ 2357.637217][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2357.637217][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2357.637217][   T73]      netlink_rcv_skb+0x130/0x360
[ 2357.637217][   T73]      netlink_unicast+0x449/0x710
[ 2357.637217][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2357.637217][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2357.637217][   T73]      ___sys_sendmsg+0xee/0x170
[ 2357.637217][   T73]      __sys_sendmsg+0xcd/0x170
[ 2357.637217][   T73]      do_syscall_64+0xc6/0x1e0
[ 2357.637217][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2357.637217][   T73] 
[ 2357.638753][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2357.638753][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2357.638753][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2357.638753][   T73]      ipv6_find_idev+0x102/0x170
[ 2357.638753][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2357.638753][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2357.638753][   T73]      netlink_rcv_skb+0x130/0x360
[ 2357.638753][   T73]      netlink_unicast+0x449/0x710
[ 2357.638753][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2357.638753][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2357.638753][   T73]      ___sys_sendmsg+0xee/0x170
[ 2357.638753][   T73]      __sys_sendmsg+0xcd/0x170
[ 2357.638753][   T73]      do_syscall_64+0xc6/0x1e0
[ 2357.638753][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2357.638753][   T73] 
[ 2357.640442][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2357.640725][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2357.640725][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2357.640725][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2357.640725][   T73]      fib6_nh_init+0xa22/0x1580
[ 2357.640725][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2357.640725][   T73]      ip6_route_add+0x1c/0x140
[ 2357.640725][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2357.640725][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2357.640725][   T73]      netlink_rcv_skb+0x130/0x360
[ 2357.640725][   T73]      netlink_unicast+0x449/0x710
[ 2357.640725][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2357.640725][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2357.640725][   T73]      ___sys_sendmsg+0xee/0x170
[ 2357.640725][   T73]      __sys_sendmsg+0xcd/0x170
[ 2357.640725][   T73]      do_syscall_64+0xc6/0x1e0
[ 2357.640725][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2357.640725][   T73] 
[ 2357.642714][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2357.642714][   T73]      dst_init+0x84/0x4a0
[ 2357.642714][   T73]      dst_alloc+0x97/0x150
[ 2357.642714][   T73]      ip6_dst_alloc+0x23/0x90
[ 2357.642714][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2357.642714][   T73]      ip6_pol_route+0x56f/0x840
[ 2357.642714][   T73]      fib6_rule_lookup+0x456/0x630
[ 2357.642714][   T73]      ip6_route_input+0x59c/0xa50
[ 2357.642714][   T73]      ipv6_rcv+0x397/0x810
[ 2357.642714][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2357.642714][   T73]      process_backlog+0x101/0x620
[ 2357.642714][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2357.642714][   T73]      net_rx_action+0x495/0xbe0
[ 2357.642714][   T73]      __do_softirq+0x1b5/0x7f6
[ 2357.642714][   T73] 
[ 2357.644533][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2357.644533][   T73]      netdev_get_by_index+0x5e/0x80
[ 2357.644533][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2357.644533][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2357.644533][   T73]      ip6_route_add+0x1c/0x140
[ 2357.644533][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2357.644533][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2357.644533][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2357.644533][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2357.644533][   T73]      netlink_rcv_skb+0x130/0x360
[ 2357.644533][   T73]      netlink_unicast+0x449/0x710
[ 2357.644533][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2357.644533][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2357.644533][   T73]      ___sys_sendmsg+0xee/0x170
[ 2357.644533][   T73]      __sys_sendmsg+0xcd/0x170
[ 2357.644533][   T73]      do_syscall_64+0xc6/0x1e0
[ 2357.644533][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2357.644533][   T73] 
[ 2357.646759][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2357.646759][   T73]      netdev_get_by_index+0x5e/0x80
[ 2357.646759][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2357.646759][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2357.646759][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2357.646759][   T73]      ipv6_add_addr+0x411/0x2000
[ 2357.646759][   T73]      inet6_addr_add+0x30e/0xa40
[ 2357.646759][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2357.646759][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2357.646759][   T73]      netlink_rcv_skb+0x130/0x360
[ 2357.646759][   T73]      netlink_unicast+0x449/0x710
[ 2357.646759][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2357.646759][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2357.646759][   T73]      ___sys_sendmsg+0xee/0x170
[ 2357.646759][   T73]      __sys_sendmsg+0xcd/0x170
[ 2357.646759][   T73]      do_syscall_64+0xc6/0x1e0
[ 2357.646759][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2357.646759][   T73] 
[ 2357.649070][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2357.649070][   T73]      netdev_get_by_index+0x5e/0x80
[ 2357.649070][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2357.649070][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2357.649070][   T73]      ip6_route_add+0x1c/0x140
[ 2357.649070][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2357.649070][   T73]      addrconf_add_dev+0xe2/0x170
[ 2357.649070][   T73]      inet6_addr_add+0x12f/0xa40
[ 2357.649070][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2357.649070][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2357.649070][   T73]      netlink_rcv_skb+0x130/0x360
[ 2357.649070][   T73]      netlink_unicast+0x449/0x710
[ 2357.649070][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2357.649070][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2357.649070][   T73]      ___sys_sendmsg+0xee/0x170
[ 2357.649070][   T73]      __sys_sendmsg+0xcd/0x170
[ 2357.649070][   T73]      do_syscall_64+0xc6/0x1e0
[ 2357.649070][   T73] 
[ 2357.651263][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2357.651263][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2357.651263][   T73]      ipv6_find_idev+0x102/0x170
[ 2357.651263][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2357.651263][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2357.651263][   T73]      netlink_rcv_skb+0x130/0x360
[ 2357.651263][   T73]      netlink_unicast+0x449/0x710
[ 2357.651263][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2357.651263][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2357.651263][   T73]      ___sys_sendmsg+0xee/0x170
[ 2357.651263][   T73]      __sys_sendmsg+0xcd/0x170
[ 2357.651263][   T73]      do_syscall_64+0xc6/0x1e0
[ 2357.651263][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2357.651263][   T73] 
[ 2357.652989][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2357.652989][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2357.652989][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2357.652989][   T73]      ipv6_find_idev+0x102/0x170
[ 2357.652989][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2357.652989][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2357.652989][   T73]      netlink_rcv_skb+0x130/0x360
[ 2357.652989][   T73]      netlink_unicast+0x449/0x710
[ 2357.652989][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2357.652989][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2357.652989][   T73]      ___sys_sendmsg+0xee/0x170
[ 2357.652989][   T73]      __sys_sendmsg+0xcd/0x170
[ 2357.652989][   T73]      do_syscall_64+0xc6/0x1e0
[ 2357.652989][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2357.652989][   T73] 
[ 2357.654856][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2357.655136][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2357.655136][   T73]      netdev_get_by_index+0x5e/0x80
[ 2357.655136][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2357.655136][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2357.655136][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2357.655136][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2357.655136][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2357.655136][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2357.655136][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2357.655136][   T73]      addrconf_dad_begin+0x310/0x670
[ 2357.655136][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2357.655136][   T73]      process_one_work+0x84d/0x18a0
[ 2357.655136][   T73]      worker_thread+0x587/0xd30
[ 2357.655136][   T73]      kthread+0x28a/0x350
[ 2357.655136][   T73]      ret_from_fork+0x31/0x70
[ 2357.655136][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2357.655136][   T73] 
[ 2357.657282][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2357.657282][   T73]      netdev_get_by_index+0x5e/0x80
[ 2357.657282][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2357.657282][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2357.657282][   T73]      ip6_route_add+0x1c/0x140
[ 2357.657282][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2357.657282][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2357.657282][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2357.657282][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2357.657282][   T73]      netlink_rcv_skb+0x130/0x360
[ 2357.657282][   T73]      netlink_unicast+0x449/0x710
[ 2357.657282][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2357.657282][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2357.657282][   T73]      ___sys_sendmsg+0xee/0x170
[ 2357.657282][   T73]      __sys_sendmsg+0xcd/0x170
[ 2357.657282][   T73]      do_syscall_64+0xc6/0x1e0
[ 2357.657282][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2357.657282][   T73] 
[ 2357.659584][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2357.659584][   T73]      netdev_get_by_index+0x5e/0x80
[ 2357.659584][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2357.659584][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2357.659584][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2357.659584][   T73]      ipv6_add_addr+0x411/0x2000
[ 2357.659584][   T73]      inet6_addr_add+0x30e/0xa40
[ 2357.659584][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2357.659584][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2357.659584][   T73]      netlink_rcv_skb+0x130/0x360
[ 2357.659584][   T73]      netlink_unicast+0x449/0x710
[ 2357.659584][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2357.659584][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2357.659584][   T73]      ___sys_sendmsg+0xee/0x170
[ 2357.659584][   T73]      __sys_sendmsg+0xcd/0x170
[ 2357.659584][   T73]      do_syscall_64+0xc6/0x1e0
[ 2357.659584][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2357.659584][   T73] 
[ 2357.661808][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2357.661808][   T73]      netdev_get_by_index+0x5e/0x80
[ 2357.661808][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2357.661808][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2357.661808][   T73]      ip6_route_add+0x1c/0x140
[ 2357.661808][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2357.661808][   T73]      addrconf_add_dev+0xe2/0x170
[ 2357.661808][   T73]      inet6_addr_add+0x12f/0xa40
[ 2357.661808][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2357.661808][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2357.661808][   T73]      netlink_rcv_skb+0x130/0x360
[ 2357.661808][   T73]      netlink_unicast+0x449/0x710
[ 2357.661808][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2357.661808][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2357.661808][   T73]      ___sys_sendmsg+0xee/0x170
[ 2357.661808][   T73]      __sys_sendmsg+0xcd/0x170
[ 2357.661808][   T73]      do_syscall_64+0xc6/0x1e0
[ 2357.661808][   T73] 
[ 2357.663955][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2357.663955][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2357.663955][   T73]      ipv6_find_idev+0x102/0x170
[ 2357.663955][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2357.663955][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2357.663955][   T73]      netlink_rcv_skb+0x130/0x360
[ 2357.663955][   T73]      netlink_unicast+0x449/0x710
[ 2357.663955][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2357.663955][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2357.663955][   T73]      ___sys_sendmsg+0xee/0x170
[ 2357.663955][   T73]      __sys_sendmsg+0xcd/0x170
[ 2357.663955][   T73]      do_syscall_64+0xc6/0x1e0
[ 2357.663955][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2357.663955][   T73] 
[ 2357.665666][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2357.665666][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2357.665666][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2357.665666][   T73]      ipv6_find_idev+0x102/0x170
[ 2357.665666][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2357.665666][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2357.665666][   T73]      netlink_rcv_skb+0x130/0x360
[ 2357.665666][   T73]      netlink_unicast+0x449/0x710
[ 2357.665666][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2357.665666][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2357.665666][   T73]      ___sys_sendmsg+0xee/0x170
[ 2357.665666][   T73]      __sys_sendmsg+0xcd/0x170
[ 2357.665666][   T73]      do_syscall_64+0xc6/0x1e0
[ 2357.665666][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2357.665666][   T73] 
[ 2367.895744][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2367.896160][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2367.896160][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2367.896160][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2367.896160][   T73]      fib6_nh_init+0xa22/0x1580
[ 2367.896160][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2367.896160][   T73]      ip6_route_add+0x1c/0x140
[ 2367.896160][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2367.896160][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2367.896160][   T73]      netlink_rcv_skb+0x130/0x360
[ 2367.896160][   T73]      netlink_unicast+0x449/0x710
[ 2367.896160][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2367.896160][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2367.896160][   T73]      ___sys_sendmsg+0xee/0x170
[ 2367.896160][   T73]      __sys_sendmsg+0xcd/0x170
[ 2367.896160][   T73]      do_syscall_64+0xc6/0x1e0
[ 2367.896160][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2367.896160][   T73] 
[ 2367.898060][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2367.898060][   T73]      dst_init+0x84/0x4a0
[ 2367.898060][   T73]      dst_alloc+0x97/0x150
[ 2367.898060][   T73]      ip6_dst_alloc+0x23/0x90
[ 2367.898060][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2367.898060][   T73]      ip6_pol_route+0x56f/0x840
[ 2367.898060][   T73]      fib6_rule_lookup+0x456/0x630
[ 2367.898060][   T73]      ip6_route_input+0x59c/0xa50
[ 2367.898060][   T73]      ipv6_rcv+0x397/0x810
[ 2367.898060][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2367.898060][   T73]      process_backlog+0x101/0x620
[ 2367.898060][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2367.898060][   T73]      net_rx_action+0x495/0xbe0
[ 2367.898060][   T73]      __do_softirq+0x1b5/0x7f6
[ 2367.898060][   T73] 
[ 2367.899686][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2367.899686][   T73]      netdev_get_by_index+0x5e/0x80
[ 2367.899686][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2367.899686][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2367.899686][   T73]      ip6_route_add+0x1c/0x140
[ 2367.899686][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2367.899686][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2367.899686][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2367.899686][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2367.899686][   T73]      netlink_rcv_skb+0x130/0x360
[ 2367.899686][   T73]      netlink_unicast+0x449/0x710
[ 2367.899686][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2367.899686][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2367.899686][   T73]      ___sys_sendmsg+0xee/0x170
[ 2367.899686][   T73]      __sys_sendmsg+0xcd/0x170
[ 2367.899686][   T73]      do_syscall_64+0xc6/0x1e0
[ 2367.899686][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2367.899686][   T73] 
[ 2367.901680][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2367.901680][   T73]      netdev_get_by_index+0x5e/0x80
[ 2367.901680][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2367.901680][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2367.901680][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2367.901680][   T73]      ipv6_add_addr+0x411/0x2000
[ 2367.901680][   T73]      inet6_addr_add+0x30e/0xa40
[ 2367.901680][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2367.901680][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2367.901680][   T73]      netlink_rcv_skb+0x130/0x360
[ 2367.901680][   T73]      netlink_unicast+0x449/0x710
[ 2367.901680][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2367.901680][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2367.901680][   T73]      ___sys_sendmsg+0xee/0x170
[ 2367.901680][   T73]      __sys_sendmsg+0xcd/0x170
[ 2367.901680][   T73]      do_syscall_64+0xc6/0x1e0
[ 2367.901680][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2367.901680][   T73] 
[ 2367.903671][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2367.903671][   T73]      netdev_get_by_index+0x5e/0x80
[ 2367.903671][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2367.903671][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2367.903671][   T73]      ip6_route_add+0x1c/0x140
[ 2367.903671][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2367.903671][   T73]      addrconf_add_dev+0xe2/0x170
[ 2367.903671][   T73]      inet6_addr_add+0x12f/0xa40
[ 2367.903671][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2367.903671][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2367.903671][   T73]      netlink_rcv_skb+0x130/0x360
[ 2367.903671][   T73]      netlink_unicast+0x449/0x710
[ 2367.903671][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2367.903671][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2367.903671][   T73]      ___sys_sendmsg+0xee/0x170
[ 2367.903671][   T73]      __sys_sendmsg+0xcd/0x170
[ 2367.903671][   T73]      do_syscall_64+0xc6/0x1e0
[ 2367.903671][   T73] 
[ 2367.905638][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2367.905638][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2367.905638][   T73]      ipv6_find_idev+0x102/0x170
[ 2367.905638][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2367.905638][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2367.905638][   T73]      netlink_rcv_skb+0x130/0x360
[ 2367.905638][   T73]      netlink_unicast+0x449/0x710
[ 2367.905638][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2367.905638][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2367.905638][   T73]      ___sys_sendmsg+0xee/0x170
[ 2367.905638][   T73]      __sys_sendmsg+0xcd/0x170
[ 2367.905638][   T73]      do_syscall_64+0xc6/0x1e0
[ 2367.905638][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2367.905638][   T73] 
[ 2367.907172][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2367.907172][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2367.907172][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2367.907172][   T73]      ipv6_find_idev+0x102/0x170
[ 2367.907172][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2367.907172][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2367.907172][   T73]      netlink_rcv_skb+0x130/0x360
[ 2367.907172][   T73]      netlink_unicast+0x449/0x710
[ 2367.907172][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2367.907172][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2367.907172][   T73]      ___sys_sendmsg+0xee/0x170
[ 2367.907172][   T73]      __sys_sendmsg+0xcd/0x170
[ 2367.907172][   T73]      do_syscall_64+0xc6/0x1e0
[ 2367.907172][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2367.907172][   T73] 
[ 2367.908860][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2367.909230][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2367.909230][   T73]      netdev_get_by_index+0x5e/0x80
[ 2367.909230][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2367.909230][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2367.909230][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2367.909230][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2367.909230][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2367.909230][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2367.909230][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2367.909230][   T73]      addrconf_dad_begin+0x310/0x670
[ 2367.909230][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2367.909230][   T73]      process_one_work+0x84d/0x18a0
[ 2367.909230][   T73]      worker_thread+0x587/0xd30
[ 2367.909230][   T73]      kthread+0x28a/0x350
[ 2367.909230][   T73]      ret_from_fork+0x31/0x70
[ 2367.909230][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2367.909230][   T73] 
[ 2367.911153][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2367.911153][   T73]      netdev_get_by_index+0x5e/0x80
[ 2367.911153][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2367.911153][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2367.911153][   T73]      ip6_route_add+0x1c/0x140
[ 2367.911153][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2367.911153][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2367.911153][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2367.911153][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2367.911153][   T73]      netlink_rcv_skb+0x130/0x360
[ 2367.911153][   T73]      netlink_unicast+0x449/0x710
[ 2367.911153][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2367.911153][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2367.911153][   T73]      ___sys_sendmsg+0xee/0x170
[ 2367.911153][   T73]      __sys_sendmsg+0xcd/0x170
[ 2367.911153][   T73]      do_syscall_64+0xc6/0x1e0
[ 2367.911153][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2367.911153][   T73] 
[ 2367.913152][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2367.913152][   T73]      netdev_get_by_index+0x5e/0x80
[ 2367.913152][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2367.913152][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2367.913152][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2367.913152][   T73]      ipv6_add_addr+0x411/0x2000
[ 2367.913152][   T73]      inet6_addr_add+0x30e/0xa40
[ 2367.913152][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2367.913152][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2367.913152][   T73]      netlink_rcv_skb+0x130/0x360
[ 2367.913152][   T73]      netlink_unicast+0x449/0x710
[ 2367.913152][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2367.913152][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2367.913152][   T73]      ___sys_sendmsg+0xee/0x170
[ 2367.913152][   T73]      __sys_sendmsg+0xcd/0x170
[ 2367.913152][   T73]      do_syscall_64+0xc6/0x1e0
[ 2367.913152][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2367.913152][   T73] 
[ 2367.915157][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2367.915157][   T73]      netdev_get_by_index+0x5e/0x80
[ 2367.915157][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2367.915157][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2367.915157][   T73]      ip6_route_add+0x1c/0x140
[ 2367.915157][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2367.915157][   T73]      addrconf_add_dev+0xe2/0x170
[ 2367.915157][   T73]      inet6_addr_add+0x12f/0xa40
[ 2367.915157][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2367.915157][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2367.915157][   T73]      netlink_rcv_skb+0x130/0x360
[ 2367.915157][   T73]      netlink_unicast+0x449/0x710
[ 2367.915157][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2367.915157][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2367.915157][   T73]      ___sys_sendmsg+0xee/0x170
[ 2367.915157][   T73]      __sys_sendmsg+0xcd/0x170
[ 2367.915157][   T73]      do_syscall_64+0xc6/0x1e0
[ 2367.915157][   T73] 
[ 2367.917102][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2367.917102][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2367.917102][   T73]      ipv6_find_idev+0x102/0x170
[ 2367.917102][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2367.917102][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2367.917102][   T73]      netlink_rcv_skb+0x130/0x360
[ 2367.917102][   T73]      netlink_unicast+0x449/0x710
[ 2367.917102][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2367.917102][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2367.917102][   T73]      ___sys_sendmsg+0xee/0x170
[ 2367.917102][   T73]      __sys_sendmsg+0xcd/0x170
[ 2367.917102][   T73]      do_syscall_64+0xc6/0x1e0
[ 2367.917102][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2367.917102][   T73] 
[ 2367.918630][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2367.918630][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2367.918630][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2367.918630][   T73]      ipv6_find_idev+0x102/0x170
[ 2367.918630][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2367.918630][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2367.918630][   T73]      netlink_rcv_skb+0x130/0x360
[ 2367.918630][   T73]      netlink_unicast+0x449/0x710
[ 2367.918630][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2367.918630][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2367.918630][   T73]      ___sys_sendmsg+0xee/0x170
[ 2367.918630][   T73]      __sys_sendmsg+0xcd/0x170
[ 2367.918630][   T73]      do_syscall_64+0xc6/0x1e0
[ 2367.918630][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2367.918630][   T73] 
[ 2367.920311][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2367.920580][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2367.920580][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2367.920580][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2367.920580][   T73]      fib6_nh_init+0xa22/0x1580
[ 2367.920580][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2367.920580][   T73]      ip6_route_add+0x1c/0x140
[ 2367.920580][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2367.920580][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2367.920580][   T73]      netlink_rcv_skb+0x130/0x360
[ 2367.920580][   T73]      netlink_unicast+0x449/0x710
[ 2367.920580][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2367.920580][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2367.920580][   T73]      ___sys_sendmsg+0xee/0x170
[ 2367.920580][   T73]      __sys_sendmsg+0xcd/0x170
[ 2367.920580][   T73]      do_syscall_64+0xc6/0x1e0
[ 2367.920580][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2367.920580][   T73] 
[ 2367.922567][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2367.922567][   T73]      dst_init+0x84/0x4a0
[ 2367.922567][   T73]      dst_alloc+0x97/0x150
[ 2367.922567][   T73]      ip6_dst_alloc+0x23/0x90
[ 2367.922567][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2367.922567][   T73]      ip6_pol_route+0x56f/0x840
[ 2367.922567][   T73]      fib6_rule_lookup+0x456/0x630
[ 2367.922567][   T73]      ip6_route_input+0x59c/0xa50
[ 2367.922567][   T73]      ipv6_rcv+0x397/0x810
[ 2367.922567][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2367.922567][   T73]      process_backlog+0x101/0x620
[ 2367.922567][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2367.922567][   T73]      net_rx_action+0x495/0xbe0
[ 2367.922567][   T73]      __do_softirq+0x1b5/0x7f6
[ 2367.922567][   T73] 
[ 2367.924442][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2367.924442][   T73]      netdev_get_by_index+0x5e/0x80
[ 2367.924442][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2367.924442][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2367.924442][   T73]      ip6_route_add+0x1c/0x140
[ 2367.924442][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2367.924442][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2367.924442][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2367.924442][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2367.924442][   T73]      netlink_rcv_skb+0x130/0x360
[ 2367.924442][   T73]      netlink_unicast+0x449/0x710
[ 2367.924442][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2367.924442][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2367.924442][   T73]      ___sys_sendmsg+0xee/0x170
[ 2367.924442][   T73]      __sys_sendmsg+0xcd/0x170
[ 2367.924442][   T73]      do_syscall_64+0xc6/0x1e0
[ 2367.924442][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2367.924442][   T73] 
[ 2367.926685][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2367.926685][   T73]      netdev_get_by_index+0x5e/0x80
[ 2367.926685][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2367.926685][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2367.926685][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2367.926685][   T73]      ipv6_add_addr+0x411/0x2000
[ 2367.926685][   T73]      inet6_addr_add+0x30e/0xa40
[ 2367.926685][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2367.926685][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2367.926685][   T73]      netlink_rcv_skb+0x130/0x360
[ 2367.926685][   T73]      netlink_unicast+0x449/0x710
[ 2367.926685][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2367.926685][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2367.926685][   T73]      ___sys_sendmsg+0xee/0x170
[ 2367.926685][   T73]      __sys_sendmsg+0xcd/0x170
[ 2367.926685][   T73]      do_syscall_64+0xc6/0x1e0
[ 2367.926685][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2367.926685][   T73] 
[ 2367.928913][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2367.928913][   T73]      netdev_get_by_index+0x5e/0x80
[ 2367.928913][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2367.928913][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2367.928913][   T73]      ip6_route_add+0x1c/0x140
[ 2367.928913][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2367.928913][   T73]      addrconf_add_dev+0xe2/0x170
[ 2367.928913][   T73]      inet6_addr_add+0x12f/0xa40
[ 2367.928913][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2367.928913][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2367.928913][   T73]      netlink_rcv_skb+0x130/0x360
[ 2367.928913][   T73]      netlink_unicast+0x449/0x710
[ 2367.928913][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2367.928913][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2367.928913][   T73]      ___sys_sendmsg+0xee/0x170
[ 2367.928913][   T73]      __sys_sendmsg+0xcd/0x170
[ 2367.928913][   T73]      do_syscall_64+0xc6/0x1e0
[ 2367.928913][   T73] 
[ 2367.931101][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2367.931101][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2367.931101][   T73]      ipv6_find_idev+0x102/0x170
[ 2367.931101][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2367.931101][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2367.931101][   T73]      netlink_rcv_skb+0x130/0x360
[ 2367.931101][   T73]      netlink_unicast+0x449/0x710
[ 2367.931101][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2367.931101][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2367.931101][   T73]      ___sys_sendmsg+0xee/0x170
[ 2367.931101][   T73]      __sys_sendmsg+0xcd/0x170
[ 2367.931101][   T73]      do_syscall_64+0xc6/0x1e0
[ 2367.931101][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2367.931101][   T73] 
[ 2367.932868][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2367.932868][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2367.932868][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2367.932868][   T73]      ipv6_find_idev+0x102/0x170
[ 2367.932868][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2367.932868][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2367.932868][   T73]      netlink_rcv_skb+0x130/0x360
[ 2367.932868][   T73]      netlink_unicast+0x449/0x710
[ 2367.932868][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2367.932868][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2367.932868][   T73]      ___sys_sendmsg+0xee/0x170
[ 2367.932868][   T73]      __sys_sendmsg+0xcd/0x170
[ 2367.932868][   T73]      do_syscall_64+0xc6/0x1e0
[ 2367.932868][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2367.932868][   T73] 
[ 2367.934727][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2367.934997][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2367.934997][   T73]      netdev_get_by_index+0x5e/0x80
[ 2367.934997][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2367.934997][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2367.934997][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2367.934997][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2367.934997][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2367.934997][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2367.934997][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2367.934997][   T73]      addrconf_dad_begin+0x310/0x670
[ 2367.934997][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2367.934997][   T73]      process_one_work+0x84d/0x18a0
[ 2367.934997][   T73]      worker_thread+0x587/0xd30
[ 2367.934997][   T73]      kthread+0x28a/0x350
[ 2367.934997][   T73]      ret_from_fork+0x31/0x70
[ 2367.934997][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2367.934997][   T73] 
[ 2367.937159][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2367.937159][   T73]      netdev_get_by_index+0x5e/0x80
[ 2367.937159][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2367.937159][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2367.937159][   T73]      ip6_route_add+0x1c/0x140
[ 2367.937159][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2367.937159][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2367.937159][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2367.937159][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2367.937159][   T73]      netlink_rcv_skb+0x130/0x360
[ 2367.937159][   T73]      netlink_unicast+0x449/0x710
[ 2367.937159][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2367.937159][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2367.937159][   T73]      ___sys_sendmsg+0xee/0x170
[ 2367.937159][   T73]      __sys_sendmsg+0xcd/0x170
[ 2367.937159][   T73]      do_syscall_64+0xc6/0x1e0
[ 2367.937159][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2367.937159][   T73] 
[ 2367.939396][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2367.939396][   T73]      netdev_get_by_index+0x5e/0x80
[ 2367.939396][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2367.939396][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2367.939396][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2367.939396][   T73]      ipv6_add_addr+0x411/0x2000
[ 2367.939396][   T73]      inet6_addr_add+0x30e/0xa40
[ 2367.939396][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2367.939396][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2367.939396][   T73]      netlink_rcv_skb+0x130/0x360
[ 2367.939396][   T73]      netlink_unicast+0x449/0x710
[ 2367.939396][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2367.939396][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2367.939396][   T73]      ___sys_sendmsg+0xee/0x170
[ 2367.939396][   T73]      __sys_sendmsg+0xcd/0x170
[ 2367.939396][   T73]      do_syscall_64+0xc6/0x1e0
[ 2367.939396][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2367.939396][   T73] 
[ 2367.941620][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2367.941620][   T73]      netdev_get_by_index+0x5e/0x80
[ 2367.941620][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2367.941620][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2367.941620][   T73]      ip6_route_add+0x1c/0x140
[ 2367.941620][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2367.941620][   T73]      addrconf_add_dev+0xe2/0x170
[ 2367.941620][   T73]      inet6_addr_add+0x12f/0xa40
[ 2367.941620][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2367.941620][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2367.941620][   T73]      netlink_rcv_skb+0x130/0x360
[ 2367.941620][   T73]      netlink_unicast+0x449/0x710
[ 2367.941620][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2367.941620][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2367.941620][   T73]      ___sys_sendmsg+0xee/0x170
[ 2367.941620][   T73]      __sys_sendmsg+0xcd/0x170
[ 2367.941620][   T73]      do_syscall_64+0xc6/0x1e0
[ 2367.941620][   T73] 
[ 2367.943851][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2367.943851][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2367.943851][   T73]      ipv6_find_idev+0x102/0x170
[ 2367.943851][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2367.943851][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2367.943851][   T73]      netlink_rcv_skb+0x130/0x360
[ 2367.943851][   T73]      netlink_unicast+0x449/0x710
[ 2367.943851][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2367.943851][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2367.943851][   T73]      ___sys_sendmsg+0xee/0x170
[ 2367.943851][   T73]      __sys_sendmsg+0xcd/0x170
[ 2367.943851][   T73]      do_syscall_64+0xc6/0x1e0
[ 2367.943851][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2367.943851][   T73] 
[ 2367.946086][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2367.946086][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2367.946086][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2367.946086][   T73]      ipv6_find_idev+0x102/0x170
[ 2367.946086][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2367.946086][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2367.946086][   T73]      netlink_rcv_skb+0x130/0x360
[ 2367.946086][   T73]      netlink_unicast+0x449/0x710
[ 2367.946086][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2367.946086][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2367.946086][   T73]      ___sys_sendmsg+0xee/0x170
[ 2367.946086][   T73]      __sys_sendmsg+0xcd/0x170
[ 2367.946086][   T73]      do_syscall_64+0xc6/0x1e0
[ 2367.946086][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2367.946086][   T73] 
[ 2378.087809][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2378.088254][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2378.088254][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2378.088254][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2378.088254][   T73]      fib6_nh_init+0xa22/0x1580
[ 2378.088254][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2378.088254][   T73]      ip6_route_add+0x1c/0x140
[ 2378.088254][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2378.088254][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2378.088254][   T73]      netlink_rcv_skb+0x130/0x360
[ 2378.088254][   T73]      netlink_unicast+0x449/0x710
[ 2378.088254][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2378.088254][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2378.088254][   T73]      ___sys_sendmsg+0xee/0x170
[ 2378.088254][   T73]      __sys_sendmsg+0xcd/0x170
[ 2378.088254][   T73]      do_syscall_64+0xc6/0x1e0
[ 2378.088254][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2378.088254][   T73] 
[ 2378.090143][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2378.090143][   T73]      dst_init+0x84/0x4a0
[ 2378.090143][   T73]      dst_alloc+0x97/0x150
[ 2378.090143][   T73]      ip6_dst_alloc+0x23/0x90
[ 2378.090143][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2378.090143][   T73]      ip6_pol_route+0x56f/0x840
[ 2378.090143][   T73]      fib6_rule_lookup+0x456/0x630
[ 2378.090143][   T73]      ip6_route_input+0x59c/0xa50
[ 2378.090143][   T73]      ipv6_rcv+0x397/0x810
[ 2378.090143][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2378.090143][   T73]      process_backlog+0x101/0x620
[ 2378.090143][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2378.090143][   T73]      net_rx_action+0x495/0xbe0
[ 2378.090143][   T73]      __do_softirq+0x1b5/0x7f6
[ 2378.090143][   T73] 
[ 2378.091778][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2378.091778][   T73]      netdev_get_by_index+0x5e/0x80
[ 2378.091778][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2378.091778][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2378.091778][   T73]      ip6_route_add+0x1c/0x140
[ 2378.091778][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2378.091778][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2378.091778][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2378.091778][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2378.091778][   T73]      netlink_rcv_skb+0x130/0x360
[ 2378.091778][   T73]      netlink_unicast+0x449/0x710
[ 2378.091778][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2378.091778][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2378.091778][   T73]      ___sys_sendmsg+0xee/0x170
[ 2378.091778][   T73]      __sys_sendmsg+0xcd/0x170
[ 2378.091778][   T73]      do_syscall_64+0xc6/0x1e0
[ 2378.091778][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2378.091778][   T73] 
[ 2378.093808][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2378.093808][   T73]      netdev_get_by_index+0x5e/0x80
[ 2378.093808][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2378.093808][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2378.093808][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2378.093808][   T73]      ipv6_add_addr+0x411/0x2000
[ 2378.093808][   T73]      inet6_addr_add+0x30e/0xa40
[ 2378.093808][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2378.093808][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2378.093808][   T73]      netlink_rcv_skb+0x130/0x360
[ 2378.093808][   T73]      netlink_unicast+0x449/0x710
[ 2378.093808][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2378.093808][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2378.093808][   T73]      ___sys_sendmsg+0xee/0x170
[ 2378.093808][   T73]      __sys_sendmsg+0xcd/0x170
[ 2378.093808][   T73]      do_syscall_64+0xc6/0x1e0
[ 2378.093808][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2378.093808][   T73] 
[ 2378.095780][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2378.095780][   T73]      netdev_get_by_index+0x5e/0x80
[ 2378.095780][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2378.095780][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2378.095780][   T73]      ip6_route_add+0x1c/0x140
[ 2378.095780][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2378.095780][   T73]      addrconf_add_dev+0xe2/0x170
[ 2378.095780][   T73]      inet6_addr_add+0x12f/0xa40
[ 2378.095780][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2378.095780][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2378.095780][   T73]      netlink_rcv_skb+0x130/0x360
[ 2378.095780][   T73]      netlink_unicast+0x449/0x710
[ 2378.095780][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2378.095780][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2378.095780][   T73]      ___sys_sendmsg+0xee/0x170
[ 2378.095780][   T73]      __sys_sendmsg+0xcd/0x170
[ 2378.095780][   T73]      do_syscall_64+0xc6/0x1e0
[ 2378.095780][   T73] 
[ 2378.097725][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2378.097725][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2378.097725][   T73]      ipv6_find_idev+0x102/0x170
[ 2378.097725][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2378.097725][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2378.097725][   T73]      netlink_rcv_skb+0x130/0x360
[ 2378.097725][   T73]      netlink_unicast+0x449/0x710
[ 2378.097725][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2378.097725][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2378.097725][   T73]      ___sys_sendmsg+0xee/0x170
[ 2378.097725][   T73]      __sys_sendmsg+0xcd/0x170
[ 2378.097725][   T73]      do_syscall_64+0xc6/0x1e0
[ 2378.097725][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2378.097725][   T73] 
[ 2378.099249][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2378.099249][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2378.099249][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2378.099249][   T73]      ipv6_find_idev+0x102/0x170
[ 2378.099249][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2378.099249][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2378.099249][   T73]      netlink_rcv_skb+0x130/0x360
[ 2378.099249][   T73]      netlink_unicast+0x449/0x710
[ 2378.099249][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2378.099249][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2378.099249][   T73]      ___sys_sendmsg+0xee/0x170
[ 2378.099249][   T73]      __sys_sendmsg+0xcd/0x170
[ 2378.099249][   T73]      do_syscall_64+0xc6/0x1e0
[ 2378.099249][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2378.099249][   T73] 
[ 2378.100926][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2378.101208][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2378.101208][   T73]      netdev_get_by_index+0x5e/0x80
[ 2378.101208][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2378.101208][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2378.101208][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2378.101208][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2378.101208][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2378.101208][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2378.101208][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2378.101208][   T73]      addrconf_dad_begin+0x310/0x670
[ 2378.101208][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2378.101208][   T73]      process_one_work+0x84d/0x18a0
[ 2378.101208][   T73]      worker_thread+0x587/0xd30
[ 2378.101208][   T73]      kthread+0x28a/0x350
[ 2378.101208][   T73]      ret_from_fork+0x31/0x70
[ 2378.101208][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2378.101208][   T73] 
[ 2378.103102][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2378.103102][   T73]      netdev_get_by_index+0x5e/0x80
[ 2378.103102][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2378.103102][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2378.103102][   T73]      ip6_route_add+0x1c/0x140
[ 2378.103102][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2378.103102][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2378.103102][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2378.103102][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2378.103102][   T73]      netlink_rcv_skb+0x130/0x360
[ 2378.103102][   T73]      netlink_unicast+0x449/0x710
[ 2378.103102][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2378.103102][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2378.103102][   T73]      ___sys_sendmsg+0xee/0x170
[ 2378.103102][   T73]      __sys_sendmsg+0xcd/0x170
[ 2378.103102][   T73]      do_syscall_64+0xc6/0x1e0
[ 2378.103102][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2378.103102][   T73] 
[ 2378.105110][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2378.105110][   T73]      netdev_get_by_index+0x5e/0x80
[ 2378.105110][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2378.105110][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2378.105110][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2378.105110][   T73]      ipv6_add_addr+0x411/0x2000
[ 2378.105110][   T73]      inet6_addr_add+0x30e/0xa40
[ 2378.105110][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2378.105110][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2378.105110][   T73]      netlink_rcv_skb+0x130/0x360
[ 2378.105110][   T73]      netlink_unicast+0x449/0x710
[ 2378.105110][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2378.105110][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2378.105110][   T73]      ___sys_sendmsg+0xee/0x170
[ 2378.105110][   T73]      __sys_sendmsg+0xcd/0x170
[ 2378.105110][   T73]      do_syscall_64+0xc6/0x1e0
[ 2378.105110][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2378.105110][   T73] 
[ 2378.107090][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2378.107090][   T73]      netdev_get_by_index+0x5e/0x80
[ 2378.107090][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2378.107090][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2378.107090][   T73]      ip6_route_add+0x1c/0x140
[ 2378.107090][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2378.107090][   T73]      addrconf_add_dev+0xe2/0x170
[ 2378.107090][   T73]      inet6_addr_add+0x12f/0xa40
[ 2378.107090][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2378.107090][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2378.107090][   T73]      netlink_rcv_skb+0x130/0x360
[ 2378.107090][   T73]      netlink_unicast+0x449/0x710
[ 2378.107090][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2378.107090][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2378.107090][   T73]      ___sys_sendmsg+0xee/0x170
[ 2378.107090][   T73]      __sys_sendmsg+0xcd/0x170
[ 2378.107090][   T73]      do_syscall_64+0xc6/0x1e0
[ 2378.107090][   T73] 
[ 2378.109039][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2378.109039][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2378.109039][   T73]      ipv6_find_idev+0x102/0x170
[ 2378.109039][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2378.109039][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2378.109039][   T73]      netlink_rcv_skb+0x130/0x360
[ 2378.109039][   T73]      netlink_unicast+0x449/0x710
[ 2378.109039][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2378.109039][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2378.109039][   T73]      ___sys_sendmsg+0xee/0x170
[ 2378.109039][   T73]      __sys_sendmsg+0xcd/0x170
[ 2378.109039][   T73]      do_syscall_64+0xc6/0x1e0
[ 2378.109039][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2378.109039][   T73] 
[ 2378.110562][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2378.110562][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2378.110562][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2378.110562][   T73]      ipv6_find_idev+0x102/0x170
[ 2378.110562][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2378.110562][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2378.110562][   T73]      netlink_rcv_skb+0x130/0x360
[ 2378.110562][   T73]      netlink_unicast+0x449/0x710
[ 2378.110562][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2378.110562][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2378.110562][   T73]      ___sys_sendmsg+0xee/0x170
[ 2378.110562][   T73]      __sys_sendmsg+0xcd/0x170
[ 2378.110562][   T73]      do_syscall_64+0xc6/0x1e0
[ 2378.110562][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2378.110562][   T73] 
[ 2378.112238][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2378.112504][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2378.112504][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2378.112504][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2378.112504][   T73]      fib6_nh_init+0xa22/0x1580
[ 2378.112504][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2378.112504][   T73]      ip6_route_add+0x1c/0x140
[ 2378.112504][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2378.112504][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2378.112504][   T73]      netlink_rcv_skb+0x130/0x360
[ 2378.112504][   T73]      netlink_unicast+0x449/0x710
[ 2378.112504][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2378.112504][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2378.112504][   T73]      ___sys_sendmsg+0xee/0x170
[ 2378.112504][   T73]      __sys_sendmsg+0xcd/0x170
[ 2378.112504][   T73]      do_syscall_64+0xc6/0x1e0
[ 2378.112504][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2378.112504][   T73] 
[ 2378.114503][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2378.114503][   T73]      dst_init+0x84/0x4a0
[ 2378.114503][   T73]      dst_alloc+0x97/0x150
[ 2378.114503][   T73]      ip6_dst_alloc+0x23/0x90
[ 2378.114503][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2378.114503][   T73]      ip6_pol_route+0x56f/0x840
[ 2378.114503][   T73]      fib6_rule_lookup+0x456/0x630
[ 2378.114503][   T73]      ip6_route_input+0x59c/0xa50
[ 2378.114503][   T73]      ipv6_rcv+0x397/0x810
[ 2378.114503][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2378.114503][   T73]      process_backlog+0x101/0x620
[ 2378.114503][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2378.114503][   T73]      net_rx_action+0x495/0xbe0
[ 2378.114503][   T73]      __do_softirq+0x1b5/0x7f6
[ 2378.114503][   T73] 
[ 2378.116311][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2378.116311][   T73]      netdev_get_by_index+0x5e/0x80
[ 2378.116311][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2378.116311][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2378.116311][   T73]      ip6_route_add+0x1c/0x140
[ 2378.116311][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2378.116311][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2378.116311][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2378.116311][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2378.116311][   T73]      netlink_rcv_skb+0x130/0x360
[ 2378.116311][   T73]      netlink_unicast+0x449/0x710
[ 2378.116311][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2378.116311][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2378.116311][   T73]      ___sys_sendmsg+0xee/0x170
[ 2378.116311][   T73]      __sys_sendmsg+0xcd/0x170
[ 2378.116311][   T73]      do_syscall_64+0xc6/0x1e0
[ 2378.116311][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2378.116311][   T73] 
[ 2378.118534][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2378.118534][   T73]      netdev_get_by_index+0x5e/0x80
[ 2378.118534][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2378.118534][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2378.118534][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2378.118534][   T73]      ipv6_add_addr+0x411/0x2000
[ 2378.118534][   T73]      inet6_addr_add+0x30e/0xa40
[ 2378.118534][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2378.118534][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2378.118534][   T73]      netlink_rcv_skb+0x130/0x360
[ 2378.118534][   T73]      netlink_unicast+0x449/0x710
[ 2378.118534][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2378.118534][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2378.118534][   T73]      ___sys_sendmsg+0xee/0x170
[ 2378.118534][   T73]      __sys_sendmsg+0xcd/0x170
[ 2378.118534][   T73]      do_syscall_64+0xc6/0x1e0
[ 2378.118534][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2378.118534][   T73] 
[ 2378.120818][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2378.120818][   T73]      netdev_get_by_index+0x5e/0x80
[ 2378.120818][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2378.120818][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2378.120818][   T73]      ip6_route_add+0x1c/0x140
[ 2378.120818][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2378.120818][   T73]      addrconf_add_dev+0xe2/0x170
[ 2378.120818][   T73]      inet6_addr_add+0x12f/0xa40
[ 2378.120818][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2378.120818][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2378.120818][   T73]      netlink_rcv_skb+0x130/0x360
[ 2378.120818][   T73]      netlink_unicast+0x449/0x710
[ 2378.120818][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2378.120818][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2378.120818][   T73]      ___sys_sendmsg+0xee/0x170
[ 2378.120818][   T73]      __sys_sendmsg+0xcd/0x170
[ 2378.120818][   T73]      do_syscall_64+0xc6/0x1e0
[ 2378.120818][   T73] 
[ 2378.123005][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2378.123005][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2378.123005][   T73]      ipv6_find_idev+0x102/0x170
[ 2378.123005][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2378.123005][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2378.123005][   T73]      netlink_rcv_skb+0x130/0x360
[ 2378.123005][   T73]      netlink_unicast+0x449/0x710
[ 2378.123005][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2378.123005][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2378.123005][   T73]      ___sys_sendmsg+0xee/0x170
[ 2378.123005][   T73]      __sys_sendmsg+0xcd/0x170
[ 2378.123005][   T73]      do_syscall_64+0xc6/0x1e0
[ 2378.123005][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2378.123005][   T73] 
[ 2378.124751][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2378.124751][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2378.124751][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2378.124751][   T73]      ipv6_find_idev+0x102/0x170
[ 2378.124751][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2378.124751][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2378.124751][   T73]      netlink_rcv_skb+0x130/0x360
[ 2378.124751][   T73]      netlink_unicast+0x449/0x710
[ 2378.124751][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2378.124751][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2378.124751][   T73]      ___sys_sendmsg+0xee/0x170
[ 2378.124751][   T73]      __sys_sendmsg+0xcd/0x170
[ 2378.124751][   T73]      do_syscall_64+0xc6/0x1e0
[ 2378.124751][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2378.124751][   T73] 
[ 2378.126603][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2378.126943][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2378.126943][   T73]      netdev_get_by_index+0x5e/0x80
[ 2378.126943][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2378.126943][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2378.126943][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2378.126943][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2378.126943][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2378.126943][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2378.126943][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2378.126943][   T73]      addrconf_dad_begin+0x310/0x670
[ 2378.126943][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2378.126943][   T73]      process_one_work+0x84d/0x18a0
[ 2378.126943][   T73]      worker_thread+0x587/0xd30
[ 2378.126943][   T73]      kthread+0x28a/0x350
[ 2378.126943][   T73]      ret_from_fork+0x31/0x70
[ 2378.126943][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2378.126943][   T73] 
[ 2378.129025][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2378.129025][   T73]      netdev_get_by_index+0x5e/0x80
[ 2378.129025][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2378.129025][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2378.129025][   T73]      ip6_route_add+0x1c/0x140
[ 2378.129025][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2378.129025][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2378.129025][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2378.129025][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2378.129025][   T73]      netlink_rcv_skb+0x130/0x360
[ 2378.129025][   T73]      netlink_unicast+0x449/0x710
[ 2378.129025][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2378.129025][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2378.129025][   T73]      ___sys_sendmsg+0xee/0x170
[ 2378.129025][   T73]      __sys_sendmsg+0xcd/0x170
[ 2378.129025][   T73]      do_syscall_64+0xc6/0x1e0
[ 2378.129025][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2378.129025][   T73] 
[ 2378.131330][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2378.131330][   T73]      netdev_get_by_index+0x5e/0x80
[ 2378.131330][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2378.131330][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2378.131330][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2378.131330][   T73]      ipv6_add_addr+0x411/0x2000
[ 2378.131330][   T73]      inet6_addr_add+0x30e/0xa40
[ 2378.131330][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2378.131330][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2378.131330][   T73]      netlink_rcv_skb+0x130/0x360
[ 2378.131330][   T73]      netlink_unicast+0x449/0x710
[ 2378.131330][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2378.131330][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2378.131330][   T73]      ___sys_sendmsg+0xee/0x170
[ 2378.131330][   T73]      __sys_sendmsg+0xcd/0x170
[ 2378.131330][   T73]      do_syscall_64+0xc6/0x1e0
[ 2378.131330][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2378.131330][   T73] 
[ 2378.133552][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2378.133552][   T73]      netdev_get_by_index+0x5e/0x80
[ 2378.133552][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2378.133552][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2378.133552][   T73]      ip6_route_add+0x1c/0x140
[ 2378.133552][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2378.133552][   T73]      addrconf_add_dev+0xe2/0x170
[ 2378.133552][   T73]      inet6_addr_add+0x12f/0xa40
[ 2378.133552][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2378.133552][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2378.133552][   T73]      netlink_rcv_skb+0x130/0x360
[ 2378.133552][   T73]      netlink_unicast+0x449/0x710
[ 2378.133552][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2378.133552][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2378.133552][   T73]      ___sys_sendmsg+0xee/0x170
[ 2378.133552][   T73]      __sys_sendmsg+0xcd/0x170
[ 2378.133552][   T73]      do_syscall_64+0xc6/0x1e0
[ 2378.133552][   T73] 
[ 2378.135760][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2378.135760][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2378.135760][   T73]      ipv6_find_idev+0x102/0x170
[ 2378.135760][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2378.135760][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2378.135760][   T73]      netlink_rcv_skb+0x130/0x360
[ 2378.135760][   T73]      netlink_unicast+0x449/0x710
[ 2378.135760][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2378.135760][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2378.135760][   T73]      ___sys_sendmsg+0xee/0x170
[ 2378.135760][   T73]      __sys_sendmsg+0xcd/0x170
[ 2378.135760][   T73]      do_syscall_64+0xc6/0x1e0
[ 2378.135760][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2378.135760][   T73] 
[ 2378.137466][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2378.137466][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2378.137466][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2378.137466][   T73]      ipv6_find_idev+0x102/0x170
[ 2378.137466][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2378.137466][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2378.137466][   T73]      netlink_rcv_skb+0x130/0x360
[ 2378.137466][   T73]      netlink_unicast+0x449/0x710
[ 2378.137466][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2378.137466][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2378.137466][   T73]      ___sys_sendmsg+0xee/0x170
[ 2378.137466][   T73]      __sys_sendmsg+0xcd/0x170
[ 2378.137466][   T73]      do_syscall_64+0xc6/0x1e0
[ 2378.137466][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2378.137466][   T73] 
[ 2388.151766][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2388.152259][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2388.152259][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2388.152259][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2388.152259][   T73]      fib6_nh_init+0xa22/0x1580
[ 2388.152259][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2388.152259][   T73]      ip6_route_add+0x1c/0x140
[ 2388.152259][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2388.152259][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2388.152259][   T73]      netlink_rcv_skb+0x130/0x360
[ 2388.152259][   T73]      netlink_unicast+0x449/0x710
[ 2388.152259][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2388.152259][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2388.152259][   T73]      ___sys_sendmsg+0xee/0x170
[ 2388.152259][   T73]      __sys_sendmsg+0xcd/0x170
[ 2388.152259][   T73]      do_syscall_64+0xc6/0x1e0
[ 2388.152259][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2388.152259][   T73] 
[ 2388.154163][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2388.154163][   T73]      dst_init+0x84/0x4a0
[ 2388.154163][   T73]      dst_alloc+0x97/0x150
[ 2388.154163][   T73]      ip6_dst_alloc+0x23/0x90
[ 2388.154163][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2388.154163][   T73]      ip6_pol_route+0x56f/0x840
[ 2388.154163][   T73]      fib6_rule_lookup+0x456/0x630
[ 2388.154163][   T73]      ip6_route_input+0x59c/0xa50
[ 2388.154163][   T73]      ipv6_rcv+0x397/0x810
[ 2388.154163][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2388.154163][   T73]      process_backlog+0x101/0x620
[ 2388.154163][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2388.154163][   T73]      net_rx_action+0x495/0xbe0
[ 2388.154163][   T73]      __do_softirq+0x1b5/0x7f6
[ 2388.154163][   T73] 
[ 2388.155796][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2388.155796][   T73]      netdev_get_by_index+0x5e/0x80
[ 2388.155796][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2388.155796][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2388.155796][   T73]      ip6_route_add+0x1c/0x140
[ 2388.155796][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2388.155796][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2388.155796][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2388.155796][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2388.155796][   T73]      netlink_rcv_skb+0x130/0x360
[ 2388.155796][   T73]      netlink_unicast+0x449/0x710
[ 2388.155796][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2388.155796][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2388.155796][   T73]      ___sys_sendmsg+0xee/0x170
[ 2388.155796][   T73]      __sys_sendmsg+0xcd/0x170
[ 2388.155796][   T73]      do_syscall_64+0xc6/0x1e0
[ 2388.155796][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2388.155796][   T73] 
[ 2388.157789][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2388.157789][   T73]      netdev_get_by_index+0x5e/0x80
[ 2388.157789][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2388.157789][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2388.157789][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2388.157789][   T73]      ipv6_add_addr+0x411/0x2000
[ 2388.157789][   T73]      inet6_addr_add+0x30e/0xa40
[ 2388.157789][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2388.157789][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2388.157789][   T73]      netlink_rcv_skb+0x130/0x360
[ 2388.157789][   T73]      netlink_unicast+0x449/0x710
[ 2388.157789][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2388.157789][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2388.157789][   T73]      ___sys_sendmsg+0xee/0x170
[ 2388.157789][   T73]      __sys_sendmsg+0xcd/0x170
[ 2388.157789][   T73]      do_syscall_64+0xc6/0x1e0
[ 2388.157789][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2388.157789][   T73] 
[ 2388.159780][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2388.159780][   T73]      netdev_get_by_index+0x5e/0x80
[ 2388.159780][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2388.159780][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2388.159780][   T73]      ip6_route_add+0x1c/0x140
[ 2388.159780][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2388.159780][   T73]      addrconf_add_dev+0xe2/0x170
[ 2388.159780][   T73]      inet6_addr_add+0x12f/0xa40
[ 2388.159780][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2388.159780][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2388.159780][   T73]      netlink_rcv_skb+0x130/0x360
[ 2388.159780][   T73]      netlink_unicast+0x449/0x710
[ 2388.159780][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2388.159780][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2388.159780][   T73]      ___sys_sendmsg+0xee/0x170
[ 2388.159780][   T73]      __sys_sendmsg+0xcd/0x170
[ 2388.159780][   T73]      do_syscall_64+0xc6/0x1e0
[ 2388.159780][   T73] 
[ 2388.161746][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2388.161746][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2388.161746][   T73]      ipv6_find_idev+0x102/0x170
[ 2388.161746][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2388.161746][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2388.161746][   T73]      netlink_rcv_skb+0x130/0x360
[ 2388.161746][   T73]      netlink_unicast+0x449/0x710
[ 2388.161746][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2388.161746][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2388.161746][   T73]      ___sys_sendmsg+0xee/0x170
[ 2388.161746][   T73]      __sys_sendmsg+0xcd/0x170
[ 2388.161746][   T73]      do_syscall_64+0xc6/0x1e0
[ 2388.161746][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2388.161746][   T73] 
[ 2388.163284][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2388.163284][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2388.163284][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2388.163284][   T73]      ipv6_find_idev+0x102/0x170
[ 2388.163284][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2388.163284][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2388.163284][   T73]      netlink_rcv_skb+0x130/0x360
[ 2388.163284][   T73]      netlink_unicast+0x449/0x710
[ 2388.163284][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2388.163284][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2388.163284][   T73]      ___sys_sendmsg+0xee/0x170
[ 2388.163284][   T73]      __sys_sendmsg+0xcd/0x170
[ 2388.163284][   T73]      do_syscall_64+0xc6/0x1e0
[ 2388.163284][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2388.163284][   T73] 
[ 2388.164990][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2388.165270][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2388.165270][   T73]      netdev_get_by_index+0x5e/0x80
[ 2388.165270][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2388.165270][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2388.165270][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2388.165270][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2388.165270][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2388.165270][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2388.165270][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2388.165270][   T73]      addrconf_dad_begin+0x310/0x670
[ 2388.165270][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2388.165270][   T73]      process_one_work+0x84d/0x18a0
[ 2388.165270][   T73]      worker_thread+0x587/0xd30
[ 2388.165270][   T73]      kthread+0x28a/0x350
[ 2388.165270][   T73]      ret_from_fork+0x31/0x70
[ 2388.165270][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2388.165270][   T73] 
[ 2388.167187][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2388.167187][   T73]      netdev_get_by_index+0x5e/0x80
[ 2388.167187][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2388.167187][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2388.167187][   T73]      ip6_route_add+0x1c/0x140
[ 2388.167187][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2388.167187][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2388.167187][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2388.167187][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2388.167187][   T73]      netlink_rcv_skb+0x130/0x360
[ 2388.167187][   T73]      netlink_unicast+0x449/0x710
[ 2388.167187][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2388.167187][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2388.167187][   T73]      ___sys_sendmsg+0xee/0x170
[ 2388.167187][   T73]      __sys_sendmsg+0xcd/0x170
[ 2388.167187][   T73]      do_syscall_64+0xc6/0x1e0
[ 2388.167187][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2388.167187][   T73] 
[ 2388.169195][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2388.169195][   T73]      netdev_get_by_index+0x5e/0x80
[ 2388.169195][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2388.169195][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2388.169195][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2388.169195][   T73]      ipv6_add_addr+0x411/0x2000
[ 2388.169195][   T73]      inet6_addr_add+0x30e/0xa40
[ 2388.169195][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2388.169195][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2388.169195][   T73]      netlink_rcv_skb+0x130/0x360
[ 2388.169195][   T73]      netlink_unicast+0x449/0x710
[ 2388.169195][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2388.169195][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2388.169195][   T73]      ___sys_sendmsg+0xee/0x170
[ 2388.169195][   T73]      __sys_sendmsg+0xcd/0x170
[ 2388.169195][   T73]      do_syscall_64+0xc6/0x1e0
[ 2388.169195][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2388.169195][   T73] 
[ 2388.171188][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2388.171188][   T73]      netdev_get_by_index+0x5e/0x80
[ 2388.171188][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2388.171188][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2388.171188][   T73]      ip6_route_add+0x1c/0x140
[ 2388.171188][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2388.171188][   T73]      addrconf_add_dev+0xe2/0x170
[ 2388.171188][   T73]      inet6_addr_add+0x12f/0xa40
[ 2388.171188][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2388.171188][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2388.171188][   T73]      netlink_rcv_skb+0x130/0x360
[ 2388.171188][   T73]      netlink_unicast+0x449/0x710
[ 2388.171188][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2388.171188][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2388.171188][   T73]      ___sys_sendmsg+0xee/0x170
[ 2388.171188][   T73]      __sys_sendmsg+0xcd/0x170
[ 2388.171188][   T73]      do_syscall_64+0xc6/0x1e0
[ 2388.171188][   T73] 
[ 2388.173148][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2388.173148][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2388.173148][   T73]      ipv6_find_idev+0x102/0x170
[ 2388.173148][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2388.173148][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2388.173148][   T73]      netlink_rcv_skb+0x130/0x360
[ 2388.173148][   T73]      netlink_unicast+0x449/0x710
[ 2388.173148][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2388.173148][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2388.173148][   T73]      ___sys_sendmsg+0xee/0x170
[ 2388.173148][   T73]      __sys_sendmsg+0xcd/0x170
[ 2388.173148][   T73]      do_syscall_64+0xc6/0x1e0
[ 2388.173148][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2388.173148][   T73] 
[ 2388.174700][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2388.174700][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2388.174700][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2388.174700][   T73]      ipv6_find_idev+0x102/0x170
[ 2388.174700][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2388.174700][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2388.174700][   T73]      netlink_rcv_skb+0x130/0x360
[ 2388.174700][   T73]      netlink_unicast+0x449/0x710
[ 2388.174700][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2388.174700][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2388.174700][   T73]      ___sys_sendmsg+0xee/0x170
[ 2388.174700][   T73]      __sys_sendmsg+0xcd/0x170
[ 2388.174700][   T73]      do_syscall_64+0xc6/0x1e0
[ 2388.174700][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2388.174700][   T73] 
[ 2388.176394][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2388.176660][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2388.176660][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2388.176660][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2388.176660][   T73]      fib6_nh_init+0xa22/0x1580
[ 2388.176660][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2388.176660][   T73]      ip6_route_add+0x1c/0x140
[ 2388.176660][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2388.176660][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2388.176660][   T73]      netlink_rcv_skb+0x130/0x360
[ 2388.176660][   T73]      netlink_unicast+0x449/0x710
[ 2388.176660][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2388.176660][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2388.176660][   T73]      ___sys_sendmsg+0xee/0x170
[ 2388.176660][   T73]      __sys_sendmsg+0xcd/0x170
[ 2388.176660][   T73]      do_syscall_64+0xc6/0x1e0
[ 2388.176660][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2388.176660][   T73] 
[ 2388.178663][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2388.178663][   T73]      dst_init+0x84/0x4a0
[ 2388.178663][   T73]      dst_alloc+0x97/0x150
[ 2388.178663][   T73]      ip6_dst_alloc+0x23/0x90
[ 2388.178663][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2388.178663][   T73]      ip6_pol_route+0x56f/0x840
[ 2388.178663][   T73]      fib6_rule_lookup+0x456/0x630
[ 2388.178663][   T73]      ip6_route_input+0x59c/0xa50
[ 2388.178663][   T73]      ipv6_rcv+0x397/0x810
[ 2388.178663][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2388.178663][   T73]      process_backlog+0x101/0x620
[ 2388.178663][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2388.178663][   T73]      net_rx_action+0x495/0xbe0
[ 2388.178663][   T73]      __do_softirq+0x1b5/0x7f6
[ 2388.178663][   T73] 
[ 2388.180607][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2388.180607][   T73]      netdev_get_by_index+0x5e/0x80
[ 2388.180607][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2388.180607][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2388.180607][   T73]      ip6_route_add+0x1c/0x140
[ 2388.180607][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2388.180607][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2388.180607][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2388.180607][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2388.180607][   T73]      netlink_rcv_skb+0x130/0x360
[ 2388.180607][   T73]      netlink_unicast+0x449/0x710
[ 2388.180607][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2388.180607][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2388.180607][   T73]      ___sys_sendmsg+0xee/0x170
[ 2388.180607][   T73]      __sys_sendmsg+0xcd/0x170
[ 2388.180607][   T73]      do_syscall_64+0xc6/0x1e0
[ 2388.180607][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2388.180607][   T73] 
[ 2388.182780][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2388.182780][   T73]      netdev_get_by_index+0x5e/0x80
[ 2388.182780][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2388.182780][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2388.182780][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2388.182780][   T73]      ipv6_add_addr+0x411/0x2000
[ 2388.182780][   T73]      inet6_addr_add+0x30e/0xa40
[ 2388.182780][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2388.182780][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2388.182780][   T73]      netlink_rcv_skb+0x130/0x360
[ 2388.182780][   T73]      netlink_unicast+0x449/0x710
[ 2388.182780][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2388.182780][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2388.182780][   T73]      ___sys_sendmsg+0xee/0x170
[ 2388.182780][   T73]      __sys_sendmsg+0xcd/0x170
[ 2388.182780][   T73]      do_syscall_64+0xc6/0x1e0
[ 2388.182780][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2388.182780][   T73] 
[ 2388.185023][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2388.185023][   T73]      netdev_get_by_index+0x5e/0x80
[ 2388.185023][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2388.185023][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2388.185023][   T73]      ip6_route_add+0x1c/0x140
[ 2388.185023][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2388.185023][   T73]      addrconf_add_dev+0xe2/0x170
[ 2388.185023][   T73]      inet6_addr_add+0x12f/0xa40
[ 2388.185023][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2388.185023][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2388.185023][   T73]      netlink_rcv_skb+0x130/0x360
[ 2388.185023][   T73]      netlink_unicast+0x449/0x710
[ 2388.185023][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2388.185023][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2388.185023][   T73]      ___sys_sendmsg+0xee/0x170
[ 2388.185023][   T73]      __sys_sendmsg+0xcd/0x170
[ 2388.185023][   T73]      do_syscall_64+0xc6/0x1e0
[ 2388.185023][   T73] 
[ 2388.187227][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2388.187227][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2388.187227][   T73]      ipv6_find_idev+0x102/0x170
[ 2388.187227][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2388.187227][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2388.187227][   T73]      netlink_rcv_skb+0x130/0x360
[ 2388.187227][   T73]      netlink_unicast+0x449/0x710
[ 2388.187227][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2388.187227][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2388.187227][   T73]      ___sys_sendmsg+0xee/0x170
[ 2388.187227][   T73]      __sys_sendmsg+0xcd/0x170
[ 2388.187227][   T73]      do_syscall_64+0xc6/0x1e0
[ 2388.187227][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2388.187227][   T73] 
[ 2388.189006][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2388.189006][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2388.189006][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2388.189006][   T73]      ipv6_find_idev+0x102/0x170
[ 2388.189006][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2388.189006][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2388.189006][   T73]      netlink_rcv_skb+0x130/0x360
[ 2388.189006][   T73]      netlink_unicast+0x449/0x710
[ 2388.189006][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2388.189006][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2388.189006][   T73]      ___sys_sendmsg+0xee/0x170
[ 2388.189006][   T73]      __sys_sendmsg+0xcd/0x170
[ 2388.189006][   T73]      do_syscall_64+0xc6/0x1e0
[ 2388.189006][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2388.189006][   T73] 
[ 2388.190865][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2388.191193][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2388.191193][   T73]      netdev_get_by_index+0x5e/0x80
[ 2388.191193][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2388.191193][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2388.191193][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2388.191193][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2388.191193][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2388.191193][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2388.191193][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2388.191193][   T73]      addrconf_dad_begin+0x310/0x670
[ 2388.191193][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2388.191193][   T73]      process_one_work+0x84d/0x18a0
[ 2388.191193][   T73]      worker_thread+0x587/0xd30
[ 2388.191193][   T73]      kthread+0x28a/0x350
[ 2388.191193][   T73]      ret_from_fork+0x31/0x70
[ 2388.191193][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2388.191193][   T73] 
[ 2388.193284][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2388.193284][   T73]      netdev_get_by_index+0x5e/0x80
[ 2388.193284][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2388.193284][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2388.193284][   T73]      ip6_route_add+0x1c/0x140
[ 2388.193284][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2388.193284][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2388.193284][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2388.193284][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2388.193284][   T73]      netlink_rcv_skb+0x130/0x360
[ 2388.193284][   T73]      netlink_unicast+0x449/0x710
[ 2388.193284][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2388.193284][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2388.193284][   T73]      ___sys_sendmsg+0xee/0x170
[ 2388.193284][   T73]      __sys_sendmsg+0xcd/0x170
[ 2388.193284][   T73]      do_syscall_64+0xc6/0x1e0
[ 2388.193284][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2388.193284][   T73] 
[ 2388.195545][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2388.195545][   T73]      netdev_get_by_index+0x5e/0x80
[ 2388.195545][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2388.195545][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2388.195545][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2388.195545][   T73]      ipv6_add_addr+0x411/0x2000
[ 2388.195545][   T73]      inet6_addr_add+0x30e/0xa40
[ 2388.195545][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2388.195545][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2388.195545][   T73]      netlink_rcv_skb+0x130/0x360
[ 2388.195545][   T73]      netlink_unicast+0x449/0x710
[ 2388.195545][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2388.195545][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2388.195545][   T73]      ___sys_sendmsg+0xee/0x170
[ 2388.195545][   T73]      __sys_sendmsg+0xcd/0x170
[ 2388.195545][   T73]      do_syscall_64+0xc6/0x1e0
[ 2388.195545][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2388.195545][   T73] 
[ 2388.197783][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2388.197783][   T73]      netdev_get_by_index+0x5e/0x80
[ 2388.197783][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2388.197783][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2388.197783][   T73]      ip6_route_add+0x1c/0x140
[ 2388.197783][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2388.197783][   T73]      addrconf_add_dev+0xe2/0x170
[ 2388.197783][   T73]      inet6_addr_add+0x12f/0xa40
[ 2388.197783][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2388.197783][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2388.197783][   T73]      netlink_rcv_skb+0x130/0x360
[ 2388.197783][   T73]      netlink_unicast+0x449/0x710
[ 2388.197783][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2388.197783][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2388.197783][   T73]      ___sys_sendmsg+0xee/0x170
[ 2388.197783][   T73]      __sys_sendmsg+0xcd/0x170
[ 2388.197783][   T73]      do_syscall_64+0xc6/0x1e0
[ 2388.197783][   T73] 
[ 2388.200051][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2388.200051][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2388.200051][   T73]      ipv6_find_idev+0x102/0x170
[ 2388.200051][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2388.200051][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2388.200051][   T73]      netlink_rcv_skb+0x130/0x360
[ 2388.200051][   T73]      netlink_unicast+0x449/0x710
[ 2388.200051][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2388.200051][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2388.200051][   T73]      ___sys_sendmsg+0xee/0x170
[ 2388.200051][   T73]      __sys_sendmsg+0xcd/0x170
[ 2388.200051][   T73]      do_syscall_64+0xc6/0x1e0
[ 2388.200051][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2388.200051][   T73] 
[ 2388.201774][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2388.201774][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2388.201774][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2388.201774][   T73]      ipv6_find_idev+0x102/0x170
[ 2388.201774][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2388.201774][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2388.201774][   T73]      netlink_rcv_skb+0x130/0x360
[ 2388.201774][   T73]      netlink_unicast+0x449/0x710
[ 2388.201774][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2388.201774][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2388.201774][   T73]      ___sys_sendmsg+0xee/0x170
[ 2388.201774][   T73]      __sys_sendmsg+0xcd/0x170
[ 2388.201774][   T73]      do_syscall_64+0xc6/0x1e0
[ 2388.201774][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2388.201774][   T73] 
[ 2398.439802][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2398.440240][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2398.440240][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2398.440240][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2398.440240][   T73]      fib6_nh_init+0xa22/0x1580
[ 2398.440240][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2398.440240][   T73]      ip6_route_add+0x1c/0x140
[ 2398.440240][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2398.440240][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2398.440240][   T73]      netlink_rcv_skb+0x130/0x360
[ 2398.440240][   T73]      netlink_unicast+0x449/0x710
[ 2398.440240][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2398.440240][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2398.440240][   T73]      ___sys_sendmsg+0xee/0x170
[ 2398.440240][   T73]      __sys_sendmsg+0xcd/0x170
[ 2398.440240][   T73]      do_syscall_64+0xc6/0x1e0
[ 2398.440240][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2398.440240][   T73] 
[ 2398.442119][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2398.442119][   T73]      dst_init+0x84/0x4a0
[ 2398.442119][   T73]      dst_alloc+0x97/0x150
[ 2398.442119][   T73]      ip6_dst_alloc+0x23/0x90
[ 2398.442119][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2398.442119][   T73]      ip6_pol_route+0x56f/0x840
[ 2398.442119][   T73]      fib6_rule_lookup+0x456/0x630
[ 2398.442119][   T73]      ip6_route_input+0x59c/0xa50
[ 2398.442119][   T73]      ipv6_rcv+0x397/0x810
[ 2398.442119][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2398.442119][   T73]      process_backlog+0x101/0x620
[ 2398.442119][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2398.442119][   T73]      net_rx_action+0x495/0xbe0
[ 2398.442119][   T73]      __do_softirq+0x1b5/0x7f6
[ 2398.442119][   T73] 
[ 2398.443767][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2398.443767][   T73]      netdev_get_by_index+0x5e/0x80
[ 2398.443767][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2398.443767][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2398.443767][   T73]      ip6_route_add+0x1c/0x140
[ 2398.443767][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2398.443767][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2398.443767][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2398.443767][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2398.443767][   T73]      netlink_rcv_skb+0x130/0x360
[ 2398.443767][   T73]      netlink_unicast+0x449/0x710
[ 2398.443767][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2398.443767][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2398.443767][   T73]      ___sys_sendmsg+0xee/0x170
[ 2398.443767][   T73]      __sys_sendmsg+0xcd/0x170
[ 2398.443767][   T73]      do_syscall_64+0xc6/0x1e0
[ 2398.443767][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2398.443767][   T73] 
[ 2398.445768][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2398.445768][   T73]      netdev_get_by_index+0x5e/0x80
[ 2398.445768][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2398.445768][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2398.445768][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2398.445768][   T73]      ipv6_add_addr+0x411/0x2000
[ 2398.445768][   T73]      inet6_addr_add+0x30e/0xa40
[ 2398.445768][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2398.445768][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2398.445768][   T73]      netlink_rcv_skb+0x130/0x360
[ 2398.445768][   T73]      netlink_unicast+0x449/0x710
[ 2398.445768][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2398.445768][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2398.445768][   T73]      ___sys_sendmsg+0xee/0x170
[ 2398.445768][   T73]      __sys_sendmsg+0xcd/0x170
[ 2398.445768][   T73]      do_syscall_64+0xc6/0x1e0
[ 2398.445768][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2398.445768][   T73] 
[ 2398.447764][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2398.447764][   T73]      netdev_get_by_index+0x5e/0x80
[ 2398.447764][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2398.447764][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2398.447764][   T73]      ip6_route_add+0x1c/0x140
[ 2398.447764][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2398.447764][   T73]      addrconf_add_dev+0xe2/0x170
[ 2398.447764][   T73]      inet6_addr_add+0x12f/0xa40
[ 2398.447764][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2398.447764][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2398.447764][   T73]      netlink_rcv_skb+0x130/0x360
[ 2398.447764][   T73]      netlink_unicast+0x449/0x710
[ 2398.447764][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2398.447764][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2398.447764][   T73]      ___sys_sendmsg+0xee/0x170
[ 2398.447764][   T73]      __sys_sendmsg+0xcd/0x170
[ 2398.447764][   T73]      do_syscall_64+0xc6/0x1e0
[ 2398.447764][   T73] 
[ 2398.449724][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2398.449724][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2398.449724][   T73]      ipv6_find_idev+0x102/0x170
[ 2398.449724][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2398.449724][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2398.449724][   T73]      netlink_rcv_skb+0x130/0x360
[ 2398.449724][   T73]      netlink_unicast+0x449/0x710
[ 2398.449724][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2398.449724][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2398.449724][   T73]      ___sys_sendmsg+0xee/0x170
[ 2398.449724][   T73]      __sys_sendmsg+0xcd/0x170
[ 2398.449724][   T73]      do_syscall_64+0xc6/0x1e0
[ 2398.449724][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2398.449724][   T73] 
[ 2398.451254][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2398.451254][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2398.451254][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2398.451254][   T73]      ipv6_find_idev+0x102/0x170
[ 2398.451254][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2398.451254][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2398.451254][   T73]      netlink_rcv_skb+0x130/0x360
[ 2398.451254][   T73]      netlink_unicast+0x449/0x710
[ 2398.451254][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2398.451254][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2398.451254][   T73]      ___sys_sendmsg+0xee/0x170
[ 2398.451254][   T73]      __sys_sendmsg+0xcd/0x170
[ 2398.451254][   T73]      do_syscall_64+0xc6/0x1e0
[ 2398.451254][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2398.451254][   T73] 
[ 2398.452932][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2398.453212][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2398.453212][   T73]      netdev_get_by_index+0x5e/0x80
[ 2398.453212][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2398.453212][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2398.453212][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2398.453212][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2398.453212][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2398.453212][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2398.453212][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2398.453212][   T73]      addrconf_dad_begin+0x310/0x670
[ 2398.453212][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2398.453212][   T73]      process_one_work+0x84d/0x18a0
[ 2398.453212][   T73]      worker_thread+0x587/0xd30
[ 2398.453212][   T73]      kthread+0x28a/0x350
[ 2398.453212][   T73]      ret_from_fork+0x31/0x70
[ 2398.453212][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2398.453212][   T73] 
[ 2398.455113][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2398.455113][   T73]      netdev_get_by_index+0x5e/0x80
[ 2398.455113][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2398.455113][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2398.455113][   T73]      ip6_route_add+0x1c/0x140
[ 2398.455113][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2398.455113][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2398.455113][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2398.455113][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2398.455113][   T73]      netlink_rcv_skb+0x130/0x360
[ 2398.455113][   T73]      netlink_unicast+0x449/0x710
[ 2398.455113][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2398.455113][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2398.455113][   T73]      ___sys_sendmsg+0xee/0x170
[ 2398.455113][   T73]      __sys_sendmsg+0xcd/0x170
[ 2398.455113][   T73]      do_syscall_64+0xc6/0x1e0
[ 2398.455113][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2398.455113][   T73] 
[ 2398.457126][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2398.457126][   T73]      netdev_get_by_index+0x5e/0x80
[ 2398.457126][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2398.457126][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2398.457126][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2398.457126][   T73]      ipv6_add_addr+0x411/0x2000
[ 2398.457126][   T73]      inet6_addr_add+0x30e/0xa40
[ 2398.457126][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2398.457126][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2398.457126][   T73]      netlink_rcv_skb+0x130/0x360
[ 2398.457126][   T73]      netlink_unicast+0x449/0x710
[ 2398.457126][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2398.457126][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2398.457126][   T73]      ___sys_sendmsg+0xee/0x170
[ 2398.457126][   T73]      __sys_sendmsg+0xcd/0x170
[ 2398.457126][   T73]      do_syscall_64+0xc6/0x1e0
[ 2398.457126][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2398.457126][   T73] 
[ 2398.459106][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2398.459106][   T73]      netdev_get_by_index+0x5e/0x80
[ 2398.459106][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2398.459106][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2398.459106][   T73]      ip6_route_add+0x1c/0x140
[ 2398.459106][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2398.459106][   T73]      addrconf_add_dev+0xe2/0x170
[ 2398.459106][   T73]      inet6_addr_add+0x12f/0xa40
[ 2398.459106][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2398.459106][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2398.459106][   T73]      netlink_rcv_skb+0x130/0x360
[ 2398.459106][   T73]      netlink_unicast+0x449/0x710
[ 2398.459106][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2398.459106][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2398.459106][   T73]      ___sys_sendmsg+0xee/0x170
[ 2398.459106][   T73]      __sys_sendmsg+0xcd/0x170
[ 2398.459106][   T73]      do_syscall_64+0xc6/0x1e0
[ 2398.459106][   T73] 
[ 2398.461052][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2398.461052][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2398.461052][   T73]      ipv6_find_idev+0x102/0x170
[ 2398.461052][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2398.461052][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2398.461052][   T73]      netlink_rcv_skb+0x130/0x360
[ 2398.461052][   T73]      netlink_unicast+0x449/0x710
[ 2398.461052][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2398.461052][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2398.461052][   T73]      ___sys_sendmsg+0xee/0x170
[ 2398.461052][   T73]      __sys_sendmsg+0xcd/0x170
[ 2398.461052][   T73]      do_syscall_64+0xc6/0x1e0
[ 2398.461052][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2398.461052][   T73] 
[ 2398.462579][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2398.462579][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2398.462579][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2398.462579][   T73]      ipv6_find_idev+0x102/0x170
[ 2398.462579][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2398.462579][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2398.462579][   T73]      netlink_rcv_skb+0x130/0x360
[ 2398.462579][   T73]      netlink_unicast+0x449/0x710
[ 2398.462579][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2398.462579][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2398.462579][   T73]      ___sys_sendmsg+0xee/0x170
[ 2398.462579][   T73]      __sys_sendmsg+0xcd/0x170
[ 2398.462579][   T73]      do_syscall_64+0xc6/0x1e0
[ 2398.462579][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2398.462579][   T73] 
[ 2398.464383][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2398.464659][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2398.464659][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2398.464659][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2398.464659][   T73]      fib6_nh_init+0xa22/0x1580
[ 2398.464659][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2398.464659][   T73]      ip6_route_add+0x1c/0x140
[ 2398.464659][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2398.464659][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2398.464659][   T73]      netlink_rcv_skb+0x130/0x360
[ 2398.464659][   T73]      netlink_unicast+0x449/0x710
[ 2398.464659][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2398.464659][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2398.464659][   T73]      ___sys_sendmsg+0xee/0x170
[ 2398.464659][   T73]      __sys_sendmsg+0xcd/0x170
[ 2398.464659][   T73]      do_syscall_64+0xc6/0x1e0
[ 2398.464659][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2398.464659][   T73] 
[ 2398.466722][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2398.466722][   T73]      dst_init+0x84/0x4a0
[ 2398.466722][   T73]      dst_alloc+0x97/0x150
[ 2398.466722][   T73]      ip6_dst_alloc+0x23/0x90
[ 2398.466722][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2398.466722][   T73]      ip6_pol_route+0x56f/0x840
[ 2398.466722][   T73]      fib6_rule_lookup+0x456/0x630
[ 2398.466722][   T73]      ip6_route_input+0x59c/0xa50
[ 2398.466722][   T73]      ipv6_rcv+0x397/0x810
[ 2398.466722][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2398.466722][   T73]      process_backlog+0x101/0x620
[ 2398.466722][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2398.466722][   T73]      net_rx_action+0x495/0xbe0
[ 2398.466722][   T73]      __do_softirq+0x1b5/0x7f6
[ 2398.466722][   T73] 
[ 2398.468530][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2398.468530][   T73]      netdev_get_by_index+0x5e/0x80
[ 2398.468530][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2398.468530][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2398.468530][   T73]      ip6_route_add+0x1c/0x140
[ 2398.468530][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2398.468530][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2398.468530][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2398.468530][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2398.468530][   T73]      netlink_rcv_skb+0x130/0x360
[ 2398.468530][   T73]      netlink_unicast+0x449/0x710
[ 2398.468530][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2398.468530][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2398.468530][   T73]      ___sys_sendmsg+0xee/0x170
[ 2398.468530][   T73]      __sys_sendmsg+0xcd/0x170
[ 2398.468530][   T73]      do_syscall_64+0xc6/0x1e0
[ 2398.468530][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2398.468530][   T73] 
[ 2398.470758][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2398.470758][   T73]      netdev_get_by_index+0x5e/0x80
[ 2398.470758][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2398.470758][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2398.470758][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2398.470758][   T73]      ipv6_add_addr+0x411/0x2000
[ 2398.470758][   T73]      inet6_addr_add+0x30e/0xa40
[ 2398.470758][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2398.470758][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2398.470758][   T73]      netlink_rcv_skb+0x130/0x360
[ 2398.470758][   T73]      netlink_unicast+0x449/0x710
[ 2398.470758][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2398.470758][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2398.470758][   T73]      ___sys_sendmsg+0xee/0x170
[ 2398.470758][   T73]      __sys_sendmsg+0xcd/0x170
[ 2398.470758][   T73]      do_syscall_64+0xc6/0x1e0
[ 2398.470758][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2398.470758][   T73] 
[ 2398.472950][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2398.472950][   T73]      netdev_get_by_index+0x5e/0x80
[ 2398.472950][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2398.472950][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2398.472950][   T73]      ip6_route_add+0x1c/0x140
[ 2398.472950][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2398.472950][   T73]      addrconf_add_dev+0xe2/0x170
[ 2398.472950][   T73]      inet6_addr_add+0x12f/0xa40
[ 2398.472950][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2398.472950][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2398.472950][   T73]      netlink_rcv_skb+0x130/0x360
[ 2398.472950][   T73]      netlink_unicast+0x449/0x710
[ 2398.472950][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2398.472950][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2398.472950][   T73]      ___sys_sendmsg+0xee/0x170
[ 2398.472950][   T73]      __sys_sendmsg+0xcd/0x170
[ 2398.472950][   T73]      do_syscall_64+0xc6/0x1e0
[ 2398.472950][   T73] 
[ 2398.475049][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2398.475049][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2398.475049][   T73]      ipv6_find_idev+0x102/0x170
[ 2398.475049][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2398.475049][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2398.475049][   T73]      netlink_rcv_skb+0x130/0x360
[ 2398.475049][   T73]      netlink_unicast+0x449/0x710
[ 2398.475049][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2398.475049][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2398.475049][   T73]      ___sys_sendmsg+0xee/0x170
[ 2398.475049][   T73]      __sys_sendmsg+0xcd/0x170
[ 2398.475049][   T73]      do_syscall_64+0xc6/0x1e0
[ 2398.475049][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2398.475049][   T73] 
[ 2398.476642][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2398.476642][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2398.476642][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2398.476642][   T73]      ipv6_find_idev+0x102/0x170
[ 2398.476642][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2398.476642][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2398.476642][   T73]      netlink_rcv_skb+0x130/0x360
[ 2398.476642][   T73]      netlink_unicast+0x449/0x710
[ 2398.476642][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2398.476642][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2398.476642][   T73]      ___sys_sendmsg+0xee/0x170
[ 2398.476642][   T73]      __sys_sendmsg+0xcd/0x170
[ 2398.476642][   T73]      do_syscall_64+0xc6/0x1e0
[ 2398.476642][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2398.476642][   T73] 
[ 2398.478447][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2398.478729][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2398.478729][   T73]      netdev_get_by_index+0x5e/0x80
[ 2398.478729][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2398.478729][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2398.478729][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2398.478729][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2398.478729][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2398.478729][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2398.478729][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2398.478729][   T73]      addrconf_dad_begin+0x310/0x670
[ 2398.478729][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2398.478729][   T73]      process_one_work+0x84d/0x18a0
[ 2398.478729][   T73]      worker_thread+0x587/0xd30
[ 2398.478729][   T73]      kthread+0x28a/0x350
[ 2398.478729][   T73]      ret_from_fork+0x31/0x70
[ 2398.478729][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2398.478729][   T73] 
[ 2398.480752][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2398.480752][   T73]      netdev_get_by_index+0x5e/0x80
[ 2398.480752][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2398.480752][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2398.480752][   T73]      ip6_route_add+0x1c/0x140
[ 2398.480752][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2398.480752][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2398.480752][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2398.480752][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2398.480752][   T73]      netlink_rcv_skb+0x130/0x360
[ 2398.480752][   T73]      netlink_unicast+0x449/0x710
[ 2398.480752][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2398.480752][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2398.480752][   T73]      ___sys_sendmsg+0xee/0x170
[ 2398.480752][   T73]      __sys_sendmsg+0xcd/0x170
[ 2398.480752][   T73]      do_syscall_64+0xc6/0x1e0
[ 2398.480752][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2398.480752][   T73] 
[ 2398.482867][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2398.482867][   T73]      netdev_get_by_index+0x5e/0x80
[ 2398.482867][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2398.482867][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2398.482867][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2398.482867][   T73]      ipv6_add_addr+0x411/0x2000
[ 2398.482867][   T73]      inet6_addr_add+0x30e/0xa40
[ 2398.482867][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2398.482867][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2398.482867][   T73]      netlink_rcv_skb+0x130/0x360
[ 2398.482867][   T73]      netlink_unicast+0x449/0x710
[ 2398.482867][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2398.482867][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2398.482867][   T73]      ___sys_sendmsg+0xee/0x170
[ 2398.482867][   T73]      __sys_sendmsg+0xcd/0x170
[ 2398.482867][   T73]      do_syscall_64+0xc6/0x1e0
[ 2398.482867][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2398.482867][   T73] 
[ 2398.484988][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2398.484988][   T73]      netdev_get_by_index+0x5e/0x80
[ 2398.484988][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2398.484988][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2398.484988][   T73]      ip6_route_add+0x1c/0x140
[ 2398.484988][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2398.484988][   T73]      addrconf_add_dev+0xe2/0x170
[ 2398.484988][   T73]      inet6_addr_add+0x12f/0xa40
[ 2398.484988][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2398.484988][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2398.484988][   T73]      netlink_rcv_skb+0x130/0x360
[ 2398.484988][   T73]      netlink_unicast+0x449/0x710
[ 2398.484988][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2398.484988][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2398.484988][   T73]      ___sys_sendmsg+0xee/0x170
[ 2398.484988][   T73]      __sys_sendmsg+0xcd/0x170
[ 2398.484988][   T73]      do_syscall_64+0xc6/0x1e0
[ 2398.484988][   T73] 
[ 2398.487075][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2398.487075][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2398.487075][   T73]      ipv6_find_idev+0x102/0x170
[ 2398.487075][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2398.487075][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2398.487075][   T73]      netlink_rcv_skb+0x130/0x360
[ 2398.487075][   T73]      netlink_unicast+0x449/0x710
[ 2398.487075][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2398.487075][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2398.487075][   T73]      ___sys_sendmsg+0xee/0x170
[ 2398.487075][   T73]      __sys_sendmsg+0xcd/0x170
[ 2398.487075][   T73]      do_syscall_64+0xc6/0x1e0
[ 2398.487075][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2398.487075][   T73] 
[ 2398.488667][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2398.488667][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2398.488667][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2398.488667][   T73]      ipv6_find_idev+0x102/0x170
[ 2398.488667][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2398.488667][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2398.488667][   T73]      netlink_rcv_skb+0x130/0x360
[ 2398.488667][   T73]      netlink_unicast+0x449/0x710
[ 2398.488667][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2398.488667][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2398.488667][   T73]      ___sys_sendmsg+0xee/0x170
[ 2398.488667][   T73]      __sys_sendmsg+0xcd/0x170
[ 2398.488667][   T73]      do_syscall_64+0xc6/0x1e0
[ 2398.488667][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2398.488667][   T73] 
[ 2408.727819][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2408.728257][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2408.728257][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2408.728257][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2408.728257][   T73]      fib6_nh_init+0xa22/0x1580
[ 2408.728257][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2408.728257][   T73]      ip6_route_add+0x1c/0x140
[ 2408.728257][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2408.728257][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2408.728257][   T73]      netlink_rcv_skb+0x130/0x360
[ 2408.728257][   T73]      netlink_unicast+0x449/0x710
[ 2408.728257][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2408.728257][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2408.728257][   T73]      ___sys_sendmsg+0xee/0x170
[ 2408.728257][   T73]      __sys_sendmsg+0xcd/0x170
[ 2408.728257][   T73]      do_syscall_64+0xc6/0x1e0
[ 2408.728257][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2408.728257][   T73] 
[ 2408.730181][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2408.730181][   T73]      dst_init+0x84/0x4a0
[ 2408.730181][   T73]      dst_alloc+0x97/0x150
[ 2408.730181][   T73]      ip6_dst_alloc+0x23/0x90
[ 2408.730181][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2408.730181][   T73]      ip6_pol_route+0x56f/0x840
[ 2408.730181][   T73]      fib6_rule_lookup+0x456/0x630
[ 2408.730181][   T73]      ip6_route_input+0x59c/0xa50
[ 2408.730181][   T73]      ipv6_rcv+0x397/0x810
[ 2408.730181][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2408.730181][   T73]      process_backlog+0x101/0x620
[ 2408.730181][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2408.730181][   T73]      net_rx_action+0x495/0xbe0
[ 2408.730181][   T73]      __do_softirq+0x1b5/0x7f6
[ 2408.730181][   T73] 
[ 2408.731834][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2408.731834][   T73]      netdev_get_by_index+0x5e/0x80
[ 2408.731834][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2408.731834][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2408.731834][   T73]      ip6_route_add+0x1c/0x140
[ 2408.731834][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2408.731834][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2408.731834][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2408.731834][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2408.731834][   T73]      netlink_rcv_skb+0x130/0x360
[ 2408.731834][   T73]      netlink_unicast+0x449/0x710
[ 2408.731834][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2408.731834][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2408.731834][   T73]      ___sys_sendmsg+0xee/0x170
[ 2408.731834][   T73]      __sys_sendmsg+0xcd/0x170
[ 2408.731834][   T73]      do_syscall_64+0xc6/0x1e0
[ 2408.731834][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2408.731834][   T73] 
[ 2408.733863][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2408.733863][   T73]      netdev_get_by_index+0x5e/0x80
[ 2408.733863][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2408.733863][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2408.733863][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2408.733863][   T73]      ipv6_add_addr+0x411/0x2000
[ 2408.733863][   T73]      inet6_addr_add+0x30e/0xa40
[ 2408.733863][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2408.733863][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2408.733863][   T73]      netlink_rcv_skb+0x130/0x360
[ 2408.733863][   T73]      netlink_unicast+0x449/0x710
[ 2408.733863][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2408.733863][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2408.733863][   T73]      ___sys_sendmsg+0xee/0x170
[ 2408.733863][   T73]      __sys_sendmsg+0xcd/0x170
[ 2408.733863][   T73]      do_syscall_64+0xc6/0x1e0
[ 2408.733863][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2408.733863][   T73] 
[ 2408.735880][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2408.735880][   T73]      netdev_get_by_index+0x5e/0x80
[ 2408.735880][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2408.735880][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2408.735880][   T73]      ip6_route_add+0x1c/0x140
[ 2408.735880][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2408.735880][   T73]      addrconf_add_dev+0xe2/0x170
[ 2408.735880][   T73]      inet6_addr_add+0x12f/0xa40
[ 2408.735880][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2408.735880][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2408.735880][   T73]      netlink_rcv_skb+0x130/0x360
[ 2408.735880][   T73]      netlink_unicast+0x449/0x710
[ 2408.735880][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2408.735880][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2408.735880][   T73]      ___sys_sendmsg+0xee/0x170
[ 2408.735880][   T73]      __sys_sendmsg+0xcd/0x170
[ 2408.735880][   T73]      do_syscall_64+0xc6/0x1e0
[ 2408.735880][   T73] 
[ 2408.737880][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2408.737880][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2408.737880][   T73]      ipv6_find_idev+0x102/0x170
[ 2408.737880][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2408.737880][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2408.737880][   T73]      netlink_rcv_skb+0x130/0x360
[ 2408.737880][   T73]      netlink_unicast+0x449/0x710
[ 2408.737880][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2408.737880][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2408.737880][   T73]      ___sys_sendmsg+0xee/0x170
[ 2408.737880][   T73]      __sys_sendmsg+0xcd/0x170
[ 2408.737880][   T73]      do_syscall_64+0xc6/0x1e0
[ 2408.737880][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2408.737880][   T73] 
[ 2408.739442][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2408.739442][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2408.739442][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2408.739442][   T73]      ipv6_find_idev+0x102/0x170
[ 2408.739442][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2408.739442][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2408.739442][   T73]      netlink_rcv_skb+0x130/0x360
[ 2408.739442][   T73]      netlink_unicast+0x449/0x710
[ 2408.739442][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2408.739442][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2408.739442][   T73]      ___sys_sendmsg+0xee/0x170
[ 2408.739442][   T73]      __sys_sendmsg+0xcd/0x170
[ 2408.739442][   T73]      do_syscall_64+0xc6/0x1e0
[ 2408.739442][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2408.739442][   T73] 
[ 2408.741171][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2408.741488][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2408.741488][   T73]      netdev_get_by_index+0x5e/0x80
[ 2408.741488][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2408.741488][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2408.741488][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2408.741488][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2408.741488][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2408.741488][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2408.741488][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2408.741488][   T73]      addrconf_dad_begin+0x310/0x670
[ 2408.741488][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2408.741488][   T73]      process_one_work+0x84d/0x18a0
[ 2408.741488][   T73]      worker_thread+0x587/0xd30
[ 2408.741488][   T73]      kthread+0x28a/0x350
[ 2408.741488][   T73]      ret_from_fork+0x31/0x70
[ 2408.741488][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2408.741488][   T73] 
[ 2408.743408][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2408.743408][   T73]      netdev_get_by_index+0x5e/0x80
[ 2408.743408][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2408.743408][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2408.743408][   T73]      ip6_route_add+0x1c/0x140
[ 2408.743408][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2408.743408][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2408.743408][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2408.743408][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2408.743408][   T73]      netlink_rcv_skb+0x130/0x360
[ 2408.743408][   T73]      netlink_unicast+0x449/0x710
[ 2408.743408][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2408.743408][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2408.743408][   T73]      ___sys_sendmsg+0xee/0x170
[ 2408.743408][   T73]      __sys_sendmsg+0xcd/0x170
[ 2408.743408][   T73]      do_syscall_64+0xc6/0x1e0
[ 2408.743408][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2408.743408][   T73] 
[ 2408.745432][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2408.745432][   T73]      netdev_get_by_index+0x5e/0x80
[ 2408.745432][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2408.745432][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2408.745432][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2408.745432][   T73]      ipv6_add_addr+0x411/0x2000
[ 2408.745432][   T73]      inet6_addr_add+0x30e/0xa40
[ 2408.745432][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2408.745432][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2408.745432][   T73]      netlink_rcv_skb+0x130/0x360
[ 2408.745432][   T73]      netlink_unicast+0x449/0x710
[ 2408.745432][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2408.745432][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2408.745432][   T73]      ___sys_sendmsg+0xee/0x170
[ 2408.745432][   T73]      __sys_sendmsg+0xcd/0x170
[ 2408.745432][   T73]      do_syscall_64+0xc6/0x1e0
[ 2408.745432][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2408.745432][   T73] 
[ 2408.747471][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2408.747471][   T73]      netdev_get_by_index+0x5e/0x80
[ 2408.747471][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2408.747471][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2408.747471][   T73]      ip6_route_add+0x1c/0x140
[ 2408.747471][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2408.747471][   T73]      addrconf_add_dev+0xe2/0x170
[ 2408.747471][   T73]      inet6_addr_add+0x12f/0xa40
[ 2408.747471][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2408.747471][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2408.747471][   T73]      netlink_rcv_skb+0x130/0x360
[ 2408.747471][   T73]      netlink_unicast+0x449/0x710
[ 2408.747471][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2408.747471][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2408.747471][   T73]      ___sys_sendmsg+0xee/0x170
[ 2408.747471][   T73]      __sys_sendmsg+0xcd/0x170
[ 2408.747471][   T73]      do_syscall_64+0xc6/0x1e0
[ 2408.747471][   T73] 
[ 2408.749474][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2408.749474][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2408.749474][   T73]      ipv6_find_idev+0x102/0x170
[ 2408.749474][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2408.749474][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2408.749474][   T73]      netlink_rcv_skb+0x130/0x360
[ 2408.749474][   T73]      netlink_unicast+0x449/0x710
[ 2408.749474][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2408.749474][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2408.749474][   T73]      ___sys_sendmsg+0xee/0x170
[ 2408.749474][   T73]      __sys_sendmsg+0xcd/0x170
[ 2408.749474][   T73]      do_syscall_64+0xc6/0x1e0
[ 2408.749474][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2408.749474][   T73] 
[ 2408.751025][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2408.751025][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2408.751025][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2408.751025][   T73]      ipv6_find_idev+0x102/0x170
[ 2408.751025][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2408.751025][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2408.751025][   T73]      netlink_rcv_skb+0x130/0x360
[ 2408.751025][   T73]      netlink_unicast+0x449/0x710
[ 2408.751025][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2408.751025][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2408.751025][   T73]      ___sys_sendmsg+0xee/0x170
[ 2408.751025][   T73]      __sys_sendmsg+0xcd/0x170
[ 2408.751025][   T73]      do_syscall_64+0xc6/0x1e0
[ 2408.751025][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2408.751025][   T73] 
[ 2408.752731][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2408.753017][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2408.753017][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2408.753017][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2408.753017][   T73]      fib6_nh_init+0xa22/0x1580
[ 2408.753017][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2408.753017][   T73]      ip6_route_add+0x1c/0x140
[ 2408.753017][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2408.753017][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2408.753017][   T73]      netlink_rcv_skb+0x130/0x360
[ 2408.753017][   T73]      netlink_unicast+0x449/0x710
[ 2408.753017][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2408.753017][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2408.753017][   T73]      ___sys_sendmsg+0xee/0x170
[ 2408.753017][   T73]      __sys_sendmsg+0xcd/0x170
[ 2408.753017][   T73]      do_syscall_64+0xc6/0x1e0
[ 2408.753017][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2408.753017][   T73] 
[ 2408.755118][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2408.755118][   T73]      dst_init+0x84/0x4a0
[ 2408.755118][   T73]      dst_alloc+0x97/0x150
[ 2408.755118][   T73]      ip6_dst_alloc+0x23/0x90
[ 2408.755118][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2408.755118][   T73]      ip6_pol_route+0x56f/0x840
[ 2408.755118][   T73]      fib6_rule_lookup+0x456/0x630
[ 2408.755118][   T73]      ip6_route_input+0x59c/0xa50
[ 2408.755118][   T73]      ipv6_rcv+0x397/0x810
[ 2408.755118][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2408.755118][   T73]      process_backlog+0x101/0x620
[ 2408.755118][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2408.755118][   T73]      net_rx_action+0x495/0xbe0
[ 2408.755118][   T73]      __do_softirq+0x1b5/0x7f6
[ 2408.755118][   T73] 
[ 2408.757004][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2408.757004][   T73]      netdev_get_by_index+0x5e/0x80
[ 2408.757004][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2408.757004][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2408.757004][   T73]      ip6_route_add+0x1c/0x140
[ 2408.757004][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2408.757004][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2408.757004][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2408.757004][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2408.757004][   T73]      netlink_rcv_skb+0x130/0x360
[ 2408.757004][   T73]      netlink_unicast+0x449/0x710
[ 2408.757004][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2408.757004][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2408.757004][   T73]      ___sys_sendmsg+0xee/0x170
[ 2408.757004][   T73]      __sys_sendmsg+0xcd/0x170
[ 2408.757004][   T73]      do_syscall_64+0xc6/0x1e0
[ 2408.757004][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2408.757004][   T73] 
[ 2408.759265][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2408.759265][   T73]      netdev_get_by_index+0x5e/0x80
[ 2408.759265][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2408.759265][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2408.759265][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2408.759265][   T73]      ipv6_add_addr+0x411/0x2000
[ 2408.759265][   T73]      inet6_addr_add+0x30e/0xa40
[ 2408.759265][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2408.759265][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2408.759265][   T73]      netlink_rcv_skb+0x130/0x360
[ 2408.759265][   T73]      netlink_unicast+0x449/0x710
[ 2408.759265][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2408.759265][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2408.759265][   T73]      ___sys_sendmsg+0xee/0x170
[ 2408.759265][   T73]      __sys_sendmsg+0xcd/0x170
[ 2408.759265][   T73]      do_syscall_64+0xc6/0x1e0
[ 2408.759265][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2408.759265][   T73] 
[ 2408.761520][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2408.761520][   T73]      netdev_get_by_index+0x5e/0x80
[ 2408.761520][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2408.761520][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2408.761520][   T73]      ip6_route_add+0x1c/0x140
[ 2408.761520][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2408.761520][   T73]      addrconf_add_dev+0xe2/0x170
[ 2408.761520][   T73]      inet6_addr_add+0x12f/0xa40
[ 2408.761520][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2408.761520][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2408.761520][   T73]      netlink_rcv_skb+0x130/0x360
[ 2408.761520][   T73]      netlink_unicast+0x449/0x710
[ 2408.761520][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2408.761520][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2408.761520][   T73]      ___sys_sendmsg+0xee/0x170
[ 2408.761520][   T73]      __sys_sendmsg+0xcd/0x170
[ 2408.761520][   T73]      do_syscall_64+0xc6/0x1e0
[ 2408.761520][   T73] 
[ 2408.763747][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2408.763747][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2408.763747][   T73]      ipv6_find_idev+0x102/0x170
[ 2408.763747][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2408.763747][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2408.763747][   T73]      netlink_rcv_skb+0x130/0x360
[ 2408.763747][   T73]      netlink_unicast+0x449/0x710
[ 2408.763747][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2408.763747][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2408.763747][   T73]      ___sys_sendmsg+0xee/0x170
[ 2408.763747][   T73]      __sys_sendmsg+0xcd/0x170
[ 2408.763747][   T73]      do_syscall_64+0xc6/0x1e0
[ 2408.763747][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2408.763747][   T73] 
[ 2408.765414][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2408.765414][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2408.765414][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2408.765414][   T73]      ipv6_find_idev+0x102/0x170
[ 2408.765414][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2408.765414][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2408.765414][   T73]      netlink_rcv_skb+0x130/0x360
[ 2408.765414][   T73]      netlink_unicast+0x449/0x710
[ 2408.765414][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2408.765414][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2408.765414][   T73]      ___sys_sendmsg+0xee/0x170
[ 2408.765414][   T73]      __sys_sendmsg+0xcd/0x170
[ 2408.765414][   T73]      do_syscall_64+0xc6/0x1e0
[ 2408.765414][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2408.765414][   T73] 
[ 2408.767433][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2408.768169][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2408.768169][   T73]      netdev_get_by_index+0x5e/0x80
[ 2408.768169][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2408.768169][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2408.768169][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2408.768169][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2408.768169][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2408.768169][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2408.768169][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2408.768169][   T73]      addrconf_dad_begin+0x310/0x670
[ 2408.768169][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2408.768169][   T73]      process_one_work+0x84d/0x18a0
[ 2408.768169][   T73]      worker_thread+0x587/0xd30
[ 2408.768169][   T73]      kthread+0x28a/0x350
[ 2408.768169][   T73]      ret_from_fork+0x31/0x70
[ 2408.768169][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2408.768169][   T73] 
[ 2408.770090][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2408.770090][   T73]      netdev_get_by_index+0x5e/0x80
[ 2408.770090][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2408.770090][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2408.770090][   T73]      ip6_route_add+0x1c/0x140
[ 2408.770090][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2408.770090][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2408.770090][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2408.770090][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2408.770090][   T73]      netlink_rcv_skb+0x130/0x360
[ 2408.770090][   T73]      netlink_unicast+0x449/0x710
[ 2408.770090][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2408.770090][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2408.770090][   T73]      ___sys_sendmsg+0xee/0x170
[ 2408.770090][   T73]      __sys_sendmsg+0xcd/0x170
[ 2408.770090][   T73]      do_syscall_64+0xc6/0x1e0
[ 2408.770090][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2408.770090][   T73] 
[ 2408.772223][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2408.772223][   T73]      netdev_get_by_index+0x5e/0x80
[ 2408.772223][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2408.772223][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2408.772223][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2408.772223][   T73]      ipv6_add_addr+0x411/0x2000
[ 2408.772223][   T73]      inet6_addr_add+0x30e/0xa40
[ 2408.772223][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2408.772223][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2408.772223][   T73]      netlink_rcv_skb+0x130/0x360
[ 2408.772223][   T73]      netlink_unicast+0x449/0x710
[ 2408.772223][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2408.772223][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2408.772223][   T73]      ___sys_sendmsg+0xee/0x170
[ 2408.772223][   T73]      __sys_sendmsg+0xcd/0x170
[ 2408.772223][   T73]      do_syscall_64+0xc6/0x1e0
[ 2408.772223][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2408.772223][   T73] 
[ 2408.774497][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2408.774497][   T73]      netdev_get_by_index+0x5e/0x80
[ 2408.774497][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2408.774497][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2408.774497][   T73]      ip6_route_add+0x1c/0x140
[ 2408.774497][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2408.774497][   T73]      addrconf_add_dev+0xe2/0x170
[ 2408.774497][   T73]      inet6_addr_add+0x12f/0xa40
[ 2408.774497][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2408.774497][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2408.774497][   T73]      netlink_rcv_skb+0x130/0x360
[ 2408.774497][   T73]      netlink_unicast+0x449/0x710
[ 2408.774497][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2408.774497][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2408.774497][   T73]      ___sys_sendmsg+0xee/0x170
[ 2408.774497][   T73]      __sys_sendmsg+0xcd/0x170
[ 2408.774497][   T73]      do_syscall_64+0xc6/0x1e0
[ 2408.774497][   T73] 
[ 2408.776658][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2408.776658][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2408.776658][   T73]      ipv6_find_idev+0x102/0x170
[ 2408.776658][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2408.776658][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2408.776658][   T73]      netlink_rcv_skb+0x130/0x360
[ 2408.776658][   T73]      netlink_unicast+0x449/0x710
[ 2408.776658][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2408.776658][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2408.776658][   T73]      ___sys_sendmsg+0xee/0x170
[ 2408.776658][   T73]      __sys_sendmsg+0xcd/0x170
[ 2408.776658][   T73]      do_syscall_64+0xc6/0x1e0
[ 2408.776658][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2408.776658][   T73] 
[ 2408.778414][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2408.778414][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2408.778414][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2408.778414][   T73]      ipv6_find_idev+0x102/0x170
[ 2408.778414][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2408.778414][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2408.778414][   T73]      netlink_rcv_skb+0x130/0x360
[ 2408.778414][   T73]      netlink_unicast+0x449/0x710
[ 2408.778414][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2408.778414][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2408.778414][   T73]      ___sys_sendmsg+0xee/0x170
[ 2408.778414][   T73]      __sys_sendmsg+0xcd/0x170
[ 2408.778414][   T73]      do_syscall_64+0xc6/0x1e0
[ 2408.778414][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2408.778414][   T73] 
[ 2419.015781][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2419.016239][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2419.016239][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2419.016239][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2419.016239][   T73]      fib6_nh_init+0xa22/0x1580
[ 2419.016239][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2419.016239][   T73]      ip6_route_add+0x1c/0x140
[ 2419.016239][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2419.016239][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2419.016239][   T73]      netlink_rcv_skb+0x130/0x360
[ 2419.016239][   T73]      netlink_unicast+0x449/0x710
[ 2419.016239][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2419.016239][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2419.016239][   T73]      ___sys_sendmsg+0xee/0x170
[ 2419.016239][   T73]      __sys_sendmsg+0xcd/0x170
[ 2419.016239][   T73]      do_syscall_64+0xc6/0x1e0
[ 2419.016239][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2419.016239][   T73] 
[ 2419.018206][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2419.018206][   T73]      dst_init+0x84/0x4a0
[ 2419.018206][   T73]      dst_alloc+0x97/0x150
[ 2419.018206][   T73]      ip6_dst_alloc+0x23/0x90
[ 2419.018206][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2419.018206][   T73]      ip6_pol_route+0x56f/0x840
[ 2419.018206][   T73]      fib6_rule_lookup+0x456/0x630
[ 2419.018206][   T73]      ip6_route_input+0x59c/0xa50
[ 2419.018206][   T73]      ipv6_rcv+0x397/0x810
[ 2419.018206][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2419.018206][   T73]      process_backlog+0x101/0x620
[ 2419.018206][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2419.018206][   T73]      net_rx_action+0x495/0xbe0
[ 2419.018206][   T73]      __do_softirq+0x1b5/0x7f6
[ 2419.018206][   T73] 
[ 2419.019878][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2419.019878][   T73]      netdev_get_by_index+0x5e/0x80
[ 2419.019878][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2419.019878][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2419.019878][   T73]      ip6_route_add+0x1c/0x140
[ 2419.019878][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2419.019878][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2419.019878][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2419.019878][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2419.019878][   T73]      netlink_rcv_skb+0x130/0x360
[ 2419.019878][   T73]      netlink_unicast+0x449/0x710
[ 2419.019878][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2419.019878][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2419.019878][   T73]      ___sys_sendmsg+0xee/0x170
[ 2419.019878][   T73]      __sys_sendmsg+0xcd/0x170
[ 2419.019878][   T73]      do_syscall_64+0xc6/0x1e0
[ 2419.019878][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2419.019878][   T73] 
[ 2419.021923][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2419.021923][   T73]      netdev_get_by_index+0x5e/0x80
[ 2419.021923][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2419.021923][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2419.021923][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2419.021923][   T73]      ipv6_add_addr+0x411/0x2000
[ 2419.021923][   T73]      inet6_addr_add+0x30e/0xa40
[ 2419.021923][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2419.021923][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2419.021923][   T73]      netlink_rcv_skb+0x130/0x360
[ 2419.021923][   T73]      netlink_unicast+0x449/0x710
[ 2419.021923][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2419.021923][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2419.021923][   T73]      ___sys_sendmsg+0xee/0x170
[ 2419.021923][   T73]      __sys_sendmsg+0xcd/0x170
[ 2419.021923][   T73]      do_syscall_64+0xc6/0x1e0
[ 2419.021923][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2419.021923][   T73] 
[ 2419.023983][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2419.023983][   T73]      netdev_get_by_index+0x5e/0x80
[ 2419.023983][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2419.023983][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2419.023983][   T73]      ip6_route_add+0x1c/0x140
[ 2419.023983][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2419.023983][   T73]      addrconf_add_dev+0xe2/0x170
[ 2419.023983][   T73]      inet6_addr_add+0x12f/0xa40
[ 2419.023983][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2419.023983][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2419.023983][   T73]      netlink_rcv_skb+0x130/0x360
[ 2419.023983][   T73]      netlink_unicast+0x449/0x710
[ 2419.023983][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2419.023983][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2419.023983][   T73]      ___sys_sendmsg+0xee/0x170
[ 2419.023983][   T73]      __sys_sendmsg+0xcd/0x170
[ 2419.023983][   T73]      do_syscall_64+0xc6/0x1e0
[ 2419.023983][   T73] 
[ 2419.025995][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2419.025995][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2419.025995][   T73]      ipv6_find_idev+0x102/0x170
[ 2419.025995][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2419.025995][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2419.025995][   T73]      netlink_rcv_skb+0x130/0x360
[ 2419.025995][   T73]      netlink_unicast+0x449/0x710
[ 2419.025995][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2419.025995][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2419.025995][   T73]      ___sys_sendmsg+0xee/0x170
[ 2419.025995][   T73]      __sys_sendmsg+0xcd/0x170
[ 2419.025995][   T73]      do_syscall_64+0xc6/0x1e0
[ 2419.025995][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2419.025995][   T73] 
[ 2419.027560][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2419.027560][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2419.027560][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2419.027560][   T73]      ipv6_find_idev+0x102/0x170
[ 2419.027560][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2419.027560][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2419.027560][   T73]      netlink_rcv_skb+0x130/0x360
[ 2419.027560][   T73]      netlink_unicast+0x449/0x710
[ 2419.027560][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2419.027560][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2419.027560][   T73]      ___sys_sendmsg+0xee/0x170
[ 2419.027560][   T73]      __sys_sendmsg+0xcd/0x170
[ 2419.027560][   T73]      do_syscall_64+0xc6/0x1e0
[ 2419.027560][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2419.027560][   T73] 
[ 2419.029294][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2419.029601][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2419.029601][   T73]      netdev_get_by_index+0x5e/0x80
[ 2419.029601][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2419.029601][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2419.029601][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2419.029601][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2419.029601][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2419.029601][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2419.029601][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2419.029601][   T73]      addrconf_dad_begin+0x310/0x670
[ 2419.029601][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2419.029601][   T73]      process_one_work+0x84d/0x18a0
[ 2419.029601][   T73]      worker_thread+0x587/0xd30
[ 2419.029601][   T73]      kthread+0x28a/0x350
[ 2419.029601][   T73]      ret_from_fork+0x31/0x70
[ 2419.029601][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2419.029601][   T73] 
[ 2419.031545][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2419.031545][   T73]      netdev_get_by_index+0x5e/0x80
[ 2419.031545][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2419.031545][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2419.031545][   T73]      ip6_route_add+0x1c/0x140
[ 2419.031545][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2419.031545][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2419.031545][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2419.031545][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2419.031545][   T73]      netlink_rcv_skb+0x130/0x360
[ 2419.031545][   T73]      netlink_unicast+0x449/0x710
[ 2419.031545][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2419.031545][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2419.031545][   T73]      ___sys_sendmsg+0xee/0x170
[ 2419.031545][   T73]      __sys_sendmsg+0xcd/0x170
[ 2419.031545][   T73]      do_syscall_64+0xc6/0x1e0
[ 2419.031545][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2419.031545][   T73] 
[ 2419.033580][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2419.033580][   T73]      netdev_get_by_index+0x5e/0x80
[ 2419.033580][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2419.033580][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2419.033580][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2419.033580][   T73]      ipv6_add_addr+0x411/0x2000
[ 2419.033580][   T73]      inet6_addr_add+0x30e/0xa40
[ 2419.033580][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2419.033580][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2419.033580][   T73]      netlink_rcv_skb+0x130/0x360
[ 2419.033580][   T73]      netlink_unicast+0x449/0x710
[ 2419.033580][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2419.033580][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2419.033580][   T73]      ___sys_sendmsg+0xee/0x170
[ 2419.033580][   T73]      __sys_sendmsg+0xcd/0x170
[ 2419.033580][   T73]      do_syscall_64+0xc6/0x1e0
[ 2419.033580][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2419.033580][   T73] 
[ 2419.035609][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2419.035609][   T73]      netdev_get_by_index+0x5e/0x80
[ 2419.035609][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2419.035609][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2419.035609][   T73]      ip6_route_add+0x1c/0x140
[ 2419.035609][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2419.035609][   T73]      addrconf_add_dev+0xe2/0x170
[ 2419.035609][   T73]      inet6_addr_add+0x12f/0xa40
[ 2419.035609][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2419.035609][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2419.035609][   T73]      netlink_rcv_skb+0x130/0x360
[ 2419.035609][   T73]      netlink_unicast+0x449/0x710
[ 2419.035609][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2419.035609][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2419.035609][   T73]      ___sys_sendmsg+0xee/0x170
[ 2419.035609][   T73]      __sys_sendmsg+0xcd/0x170
[ 2419.035609][   T73]      do_syscall_64+0xc6/0x1e0
[ 2419.035609][   T73] 
[ 2419.037603][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2419.037603][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2419.037603][   T73]      ipv6_find_idev+0x102/0x170
[ 2419.037603][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2419.037603][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2419.037603][   T73]      netlink_rcv_skb+0x130/0x360
[ 2419.037603][   T73]      netlink_unicast+0x449/0x710
[ 2419.037603][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2419.037603][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2419.037603][   T73]      ___sys_sendmsg+0xee/0x170
[ 2419.037603][   T73]      __sys_sendmsg+0xcd/0x170
[ 2419.037603][   T73]      do_syscall_64+0xc6/0x1e0
[ 2419.037603][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2419.037603][   T73] 
[ 2419.039154][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2419.039154][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2419.039154][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2419.039154][   T73]      ipv6_find_idev+0x102/0x170
[ 2419.039154][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2419.039154][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2419.039154][   T73]      netlink_rcv_skb+0x130/0x360
[ 2419.039154][   T73]      netlink_unicast+0x449/0x710
[ 2419.039154][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2419.039154][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2419.039154][   T73]      ___sys_sendmsg+0xee/0x170
[ 2419.039154][   T73]      __sys_sendmsg+0xcd/0x170
[ 2419.039154][   T73]      do_syscall_64+0xc6/0x1e0
[ 2419.039154][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2419.039154][   T73] 
[ 2419.040893][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2419.041182][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2419.041182][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2419.041182][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2419.041182][   T73]      fib6_nh_init+0xa22/0x1580
[ 2419.041182][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2419.041182][   T73]      ip6_route_add+0x1c/0x140
[ 2419.041182][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2419.041182][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2419.041182][   T73]      netlink_rcv_skb+0x130/0x360
[ 2419.041182][   T73]      netlink_unicast+0x449/0x710
[ 2419.041182][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2419.041182][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2419.041182][   T73]      ___sys_sendmsg+0xee/0x170
[ 2419.041182][   T73]      __sys_sendmsg+0xcd/0x170
[ 2419.041182][   T73]      do_syscall_64+0xc6/0x1e0
[ 2419.041182][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2419.041182][   T73] 
[ 2419.043263][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2419.043263][   T73]      dst_init+0x84/0x4a0
[ 2419.043263][   T73]      dst_alloc+0x97/0x150
[ 2419.043263][   T73]      ip6_dst_alloc+0x23/0x90
[ 2419.043263][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2419.043263][   T73]      ip6_pol_route+0x56f/0x840
[ 2419.043263][   T73]      fib6_rule_lookup+0x456/0x630
[ 2419.043263][   T73]      ip6_route_input+0x59c/0xa50
[ 2419.043263][   T73]      ipv6_rcv+0x397/0x810
[ 2419.043263][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2419.043263][   T73]      process_backlog+0x101/0x620
[ 2419.043263][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2419.043263][   T73]      net_rx_action+0x495/0xbe0
[ 2419.043263][   T73]      __do_softirq+0x1b5/0x7f6
[ 2419.043263][   T73] 
[ 2419.045182][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2419.045182][   T73]      netdev_get_by_index+0x5e/0x80
[ 2419.045182][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2419.045182][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2419.045182][   T73]      ip6_route_add+0x1c/0x140
[ 2419.045182][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2419.045182][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2419.045182][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2419.045182][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2419.045182][   T73]      netlink_rcv_skb+0x130/0x360
[ 2419.045182][   T73]      netlink_unicast+0x449/0x710
[ 2419.045182][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2419.045182][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2419.045182][   T73]      ___sys_sendmsg+0xee/0x170
[ 2419.045182][   T73]      __sys_sendmsg+0xcd/0x170
[ 2419.045182][   T73]      do_syscall_64+0xc6/0x1e0
[ 2419.045182][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2419.045182][   T73] 
[ 2419.047447][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2419.047447][   T73]      netdev_get_by_index+0x5e/0x80
[ 2419.047447][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2419.047447][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2419.047447][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2419.047447][   T73]      ipv6_add_addr+0x411/0x2000
[ 2419.047447][   T73]      inet6_addr_add+0x30e/0xa40
[ 2419.047447][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2419.047447][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2419.047447][   T73]      netlink_rcv_skb+0x130/0x360
[ 2419.047447][   T73]      netlink_unicast+0x449/0x710
[ 2419.047447][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2419.047447][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2419.047447][   T73]      ___sys_sendmsg+0xee/0x170
[ 2419.047447][   T73]      __sys_sendmsg+0xcd/0x170
[ 2419.047447][   T73]      do_syscall_64+0xc6/0x1e0
[ 2419.047447][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2419.047447][   T73] 
[ 2419.049701][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2419.049701][   T73]      netdev_get_by_index+0x5e/0x80
[ 2419.049701][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2419.049701][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2419.049701][   T73]      ip6_route_add+0x1c/0x140
[ 2419.049701][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2419.049701][   T73]      addrconf_add_dev+0xe2/0x170
[ 2419.049701][   T73]      inet6_addr_add+0x12f/0xa40
[ 2419.049701][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2419.049701][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2419.049701][   T73]      netlink_rcv_skb+0x130/0x360
[ 2419.049701][   T73]      netlink_unicast+0x449/0x710
[ 2419.049701][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2419.049701][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2419.049701][   T73]      ___sys_sendmsg+0xee/0x170
[ 2419.049701][   T73]      __sys_sendmsg+0xcd/0x170
[ 2419.049701][   T73]      do_syscall_64+0xc6/0x1e0
[ 2419.049701][   T73] 
[ 2419.051920][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2419.051920][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2419.051920][   T73]      ipv6_find_idev+0x102/0x170
[ 2419.051920][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2419.051920][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2419.051920][   T73]      netlink_rcv_skb+0x130/0x360
[ 2419.051920][   T73]      netlink_unicast+0x449/0x710
[ 2419.051920][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2419.051920][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2419.051920][   T73]      ___sys_sendmsg+0xee/0x170
[ 2419.051920][   T73]      __sys_sendmsg+0xcd/0x170
[ 2419.051920][   T73]      do_syscall_64+0xc6/0x1e0
[ 2419.051920][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2419.051920][   T73] 
[ 2419.053660][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2419.053660][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2419.053660][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2419.053660][   T73]      ipv6_find_idev+0x102/0x170
[ 2419.053660][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2419.053660][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2419.053660][   T73]      netlink_rcv_skb+0x130/0x360
[ 2419.053660][   T73]      netlink_unicast+0x449/0x710
[ 2419.053660][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2419.053660][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2419.053660][   T73]      ___sys_sendmsg+0xee/0x170
[ 2419.053660][   T73]      __sys_sendmsg+0xcd/0x170
[ 2419.053660][   T73]      do_syscall_64+0xc6/0x1e0
[ 2419.053660][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2419.053660][   T73] 
[ 2419.055614][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2419.056344][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2419.056344][   T73]      netdev_get_by_index+0x5e/0x80
[ 2419.056344][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2419.056344][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2419.056344][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2419.056344][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2419.056344][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2419.056344][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2419.056344][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2419.056344][   T73]      addrconf_dad_begin+0x310/0x670
[ 2419.056344][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2419.056344][   T73]      process_one_work+0x84d/0x18a0
[ 2419.056344][   T73]      worker_thread+0x587/0xd30
[ 2419.056344][   T73]      kthread+0x28a/0x350
[ 2419.056344][   T73]      ret_from_fork+0x31/0x70
[ 2419.056344][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2419.056344][   T73] 
[ 2419.058267][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2419.058267][   T73]      netdev_get_by_index+0x5e/0x80
[ 2419.058267][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2419.058267][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2419.058267][   T73]      ip6_route_add+0x1c/0x140
[ 2419.058267][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2419.058267][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2419.058267][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2419.058267][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2419.058267][   T73]      netlink_rcv_skb+0x130/0x360
[ 2419.058267][   T73]      netlink_unicast+0x449/0x710
[ 2419.058267][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2419.058267][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2419.058267][   T73]      ___sys_sendmsg+0xee/0x170
[ 2419.058267][   T73]      __sys_sendmsg+0xcd/0x170
[ 2419.058267][   T73]      do_syscall_64+0xc6/0x1e0
[ 2419.058267][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2419.058267][   T73] 
[ 2419.060400][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2419.060400][   T73]      netdev_get_by_index+0x5e/0x80
[ 2419.060400][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2419.060400][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2419.060400][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2419.060400][   T73]      ipv6_add_addr+0x411/0x2000
[ 2419.060400][   T73]      inet6_addr_add+0x30e/0xa40
[ 2419.060400][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2419.060400][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2419.060400][   T73]      netlink_rcv_skb+0x130/0x360
[ 2419.060400][   T73]      netlink_unicast+0x449/0x710
[ 2419.060400][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2419.060400][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2419.060400][   T73]      ___sys_sendmsg+0xee/0x170
[ 2419.060400][   T73]      __sys_sendmsg+0xcd/0x170
[ 2419.060400][   T73]      do_syscall_64+0xc6/0x1e0
[ 2419.060400][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2419.060400][   T73] 
[ 2419.062674][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2419.062674][   T73]      netdev_get_by_index+0x5e/0x80
[ 2419.062674][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2419.062674][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2419.062674][   T73]      ip6_route_add+0x1c/0x140
[ 2419.062674][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2419.062674][   T73]      addrconf_add_dev+0xe2/0x170
[ 2419.062674][   T73]      inet6_addr_add+0x12f/0xa40
[ 2419.062674][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2419.062674][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2419.062674][   T73]      netlink_rcv_skb+0x130/0x360
[ 2419.062674][   T73]      netlink_unicast+0x449/0x710
[ 2419.062674][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2419.062674][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2419.062674][   T73]      ___sys_sendmsg+0xee/0x170
[ 2419.062674][   T73]      __sys_sendmsg+0xcd/0x170
[ 2419.062674][   T73]      do_syscall_64+0xc6/0x1e0
[ 2419.062674][   T73] 
[ 2419.064844][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2419.064844][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2419.064844][   T73]      ipv6_find_idev+0x102/0x170
[ 2419.064844][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2419.064844][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2419.064844][   T73]      netlink_rcv_skb+0x130/0x360
[ 2419.064844][   T73]      netlink_unicast+0x449/0x710
[ 2419.064844][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2419.064844][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2419.064844][   T73]      ___sys_sendmsg+0xee/0x170
[ 2419.064844][   T73]      __sys_sendmsg+0xcd/0x170
[ 2419.064844][   T73]      do_syscall_64+0xc6/0x1e0
[ 2419.064844][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2419.064844][   T73] 
[ 2419.066640][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2419.066640][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2419.066640][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2419.066640][   T73]      ipv6_find_idev+0x102/0x170
[ 2419.066640][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2419.066640][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2419.066640][   T73]      netlink_rcv_skb+0x130/0x360
[ 2419.066640][   T73]      netlink_unicast+0x449/0x710
[ 2419.066640][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2419.066640][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2419.066640][   T73]      ___sys_sendmsg+0xee/0x170
[ 2419.066640][   T73]      __sys_sendmsg+0xcd/0x170
[ 2419.066640][   T73]      do_syscall_64+0xc6/0x1e0
[ 2419.066640][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2419.066640][   T73] 
[ 2429.311784][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2429.312309][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2429.312309][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2429.312309][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2429.312309][   T73]      fib6_nh_init+0xa22/0x1580
[ 2429.312309][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2429.312309][   T73]      ip6_route_add+0x1c/0x140
[ 2429.312309][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2429.312309][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2429.312309][   T73]      netlink_rcv_skb+0x130/0x360
[ 2429.312309][   T73]      netlink_unicast+0x449/0x710
[ 2429.312309][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2429.312309][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2429.312309][   T73]      ___sys_sendmsg+0xee/0x170
[ 2429.312309][   T73]      __sys_sendmsg+0xcd/0x170
[ 2429.312309][   T73]      do_syscall_64+0xc6/0x1e0
[ 2429.312309][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2429.312309][   T73] 
[ 2429.314302][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2429.314302][   T73]      dst_init+0x84/0x4a0
[ 2429.314302][   T73]      dst_alloc+0x97/0x150
[ 2429.314302][   T73]      ip6_dst_alloc+0x23/0x90
[ 2429.314302][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2429.314302][   T73]      ip6_pol_route+0x56f/0x840
[ 2429.314302][   T73]      fib6_rule_lookup+0x456/0x630
[ 2429.314302][   T73]      ip6_route_input+0x59c/0xa50
[ 2429.314302][   T73]      ipv6_rcv+0x397/0x810
[ 2429.314302][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2429.314302][   T73]      process_backlog+0x101/0x620
[ 2429.314302][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2429.314302][   T73]      net_rx_action+0x495/0xbe0
[ 2429.314302][   T73]      __do_softirq+0x1b5/0x7f6
[ 2429.314302][   T73] 
[ 2429.315954][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2429.315954][   T73]      netdev_get_by_index+0x5e/0x80
[ 2429.315954][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2429.315954][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2429.315954][   T73]      ip6_route_add+0x1c/0x140
[ 2429.315954][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2429.315954][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2429.315954][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2429.315954][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2429.315954][   T73]      netlink_rcv_skb+0x130/0x360
[ 2429.315954][   T73]      netlink_unicast+0x449/0x710
[ 2429.315954][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2429.315954][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2429.315954][   T73]      ___sys_sendmsg+0xee/0x170
[ 2429.315954][   T73]      __sys_sendmsg+0xcd/0x170
[ 2429.315954][   T73]      do_syscall_64+0xc6/0x1e0
[ 2429.315954][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2429.315954][   T73] 
[ 2429.317967][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2429.317967][   T73]      netdev_get_by_index+0x5e/0x80
[ 2429.317967][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2429.317967][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2429.317967][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2429.317967][   T73]      ipv6_add_addr+0x411/0x2000
[ 2429.317967][   T73]      inet6_addr_add+0x30e/0xa40
[ 2429.317967][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2429.317967][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2429.317967][   T73]      netlink_rcv_skb+0x130/0x360
[ 2429.317967][   T73]      netlink_unicast+0x449/0x710
[ 2429.317967][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2429.317967][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2429.317967][   T73]      ___sys_sendmsg+0xee/0x170
[ 2429.317967][   T73]      __sys_sendmsg+0xcd/0x170
[ 2429.317967][   T73]      do_syscall_64+0xc6/0x1e0
[ 2429.317967][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2429.317967][   T73] 
[ 2429.319972][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2429.319972][   T73]      netdev_get_by_index+0x5e/0x80
[ 2429.319972][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2429.319972][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2429.319972][   T73]      ip6_route_add+0x1c/0x140
[ 2429.319972][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2429.319972][   T73]      addrconf_add_dev+0xe2/0x170
[ 2429.319972][   T73]      inet6_addr_add+0x12f/0xa40
[ 2429.319972][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2429.319972][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2429.319972][   T73]      netlink_rcv_skb+0x130/0x360
[ 2429.319972][   T73]      netlink_unicast+0x449/0x710
[ 2429.319972][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2429.319972][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2429.319972][   T73]      ___sys_sendmsg+0xee/0x170
[ 2429.319972][   T73]      __sys_sendmsg+0xcd/0x170
[ 2429.319972][   T73]      do_syscall_64+0xc6/0x1e0
[ 2429.319972][   T73] 
[ 2429.321952][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2429.321952][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2429.321952][   T73]      ipv6_find_idev+0x102/0x170
[ 2429.321952][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2429.321952][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2429.321952][   T73]      netlink_rcv_skb+0x130/0x360
[ 2429.321952][   T73]      netlink_unicast+0x449/0x710
[ 2429.321952][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2429.321952][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2429.321952][   T73]      ___sys_sendmsg+0xee/0x170
[ 2429.321952][   T73]      __sys_sendmsg+0xcd/0x170
[ 2429.321952][   T73]      do_syscall_64+0xc6/0x1e0
[ 2429.321952][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2429.321952][   T73] 
[ 2429.323510][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2429.323510][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2429.323510][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2429.323510][   T73]      ipv6_find_idev+0x102/0x170
[ 2429.323510][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2429.323510][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2429.323510][   T73]      netlink_rcv_skb+0x130/0x360
[ 2429.323510][   T73]      netlink_unicast+0x449/0x710
[ 2429.323510][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2429.323510][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2429.323510][   T73]      ___sys_sendmsg+0xee/0x170
[ 2429.323510][   T73]      __sys_sendmsg+0xcd/0x170
[ 2429.323510][   T73]      do_syscall_64+0xc6/0x1e0
[ 2429.323510][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2429.323510][   T73] 
[ 2429.325231][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2429.325515][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2429.325515][   T73]      netdev_get_by_index+0x5e/0x80
[ 2429.325515][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2429.325515][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2429.325515][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2429.325515][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2429.325515][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2429.325515][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2429.325515][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2429.325515][   T73]      addrconf_dad_begin+0x310/0x670
[ 2429.325515][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2429.325515][   T73]      process_one_work+0x84d/0x18a0
[ 2429.325515][   T73]      worker_thread+0x587/0xd30
[ 2429.325515][   T73]      kthread+0x28a/0x350
[ 2429.325515][   T73]      ret_from_fork+0x31/0x70
[ 2429.325515][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2429.325515][   T73] 
[ 2429.327441][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2429.327441][   T73]      netdev_get_by_index+0x5e/0x80
[ 2429.327441][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2429.327441][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2429.327441][   T73]      ip6_route_add+0x1c/0x140
[ 2429.327441][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2429.327441][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2429.327441][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2429.327441][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2429.327441][   T73]      netlink_rcv_skb+0x130/0x360
[ 2429.327441][   T73]      netlink_unicast+0x449/0x710
[ 2429.327441][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2429.327441][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2429.327441][   T73]      ___sys_sendmsg+0xee/0x170
[ 2429.327441][   T73]      __sys_sendmsg+0xcd/0x170
[ 2429.327441][   T73]      do_syscall_64+0xc6/0x1e0
[ 2429.327441][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2429.327441][   T73] 
[ 2429.329451][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2429.329451][   T73]      netdev_get_by_index+0x5e/0x80
[ 2429.329451][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2429.329451][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2429.329451][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2429.329451][   T73]      ipv6_add_addr+0x411/0x2000
[ 2429.329451][   T73]      inet6_addr_add+0x30e/0xa40
[ 2429.329451][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2429.329451][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2429.329451][   T73]      netlink_rcv_skb+0x130/0x360
[ 2429.329451][   T73]      netlink_unicast+0x449/0x710
[ 2429.329451][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2429.329451][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2429.329451][   T73]      ___sys_sendmsg+0xee/0x170
[ 2429.329451][   T73]      __sys_sendmsg+0xcd/0x170
[ 2429.329451][   T73]      do_syscall_64+0xc6/0x1e0
[ 2429.329451][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2429.329451][   T73] 
[ 2429.331460][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2429.331460][   T73]      netdev_get_by_index+0x5e/0x80
[ 2429.331460][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2429.331460][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2429.331460][   T73]      ip6_route_add+0x1c/0x140
[ 2429.331460][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2429.331460][   T73]      addrconf_add_dev+0xe2/0x170
[ 2429.331460][   T73]      inet6_addr_add+0x12f/0xa40
[ 2429.331460][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2429.331460][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2429.331460][   T73]      netlink_rcv_skb+0x130/0x360
[ 2429.331460][   T73]      netlink_unicast+0x449/0x710
[ 2429.331460][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2429.331460][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2429.331460][   T73]      ___sys_sendmsg+0xee/0x170
[ 2429.331460][   T73]      __sys_sendmsg+0xcd/0x170
[ 2429.331460][   T73]      do_syscall_64+0xc6/0x1e0
[ 2429.331460][   T73] 
[ 2429.333436][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2429.333436][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2429.333436][   T73]      ipv6_find_idev+0x102/0x170
[ 2429.333436][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2429.333436][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2429.333436][   T73]      netlink_rcv_skb+0x130/0x360
[ 2429.333436][   T73]      netlink_unicast+0x449/0x710
[ 2429.333436][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2429.333436][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2429.333436][   T73]      ___sys_sendmsg+0xee/0x170
[ 2429.333436][   T73]      __sys_sendmsg+0xcd/0x170
[ 2429.333436][   T73]      do_syscall_64+0xc6/0x1e0
[ 2429.333436][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2429.333436][   T73] 
[ 2429.335014][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2429.335014][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2429.335014][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2429.335014][   T73]      ipv6_find_idev+0x102/0x170
[ 2429.335014][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2429.335014][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2429.335014][   T73]      netlink_rcv_skb+0x130/0x360
[ 2429.335014][   T73]      netlink_unicast+0x449/0x710
[ 2429.335014][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2429.335014][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2429.335014][   T73]      ___sys_sendmsg+0xee/0x170
[ 2429.335014][   T73]      __sys_sendmsg+0xcd/0x170
[ 2429.335014][   T73]      do_syscall_64+0xc6/0x1e0
[ 2429.335014][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2429.335014][   T73] 
[ 2429.336723][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2429.336989][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2429.336989][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2429.336989][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2429.336989][   T73]      fib6_nh_init+0xa22/0x1580
[ 2429.336989][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2429.336989][   T73]      ip6_route_add+0x1c/0x140
[ 2429.336989][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2429.336989][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2429.336989][   T73]      netlink_rcv_skb+0x130/0x360
[ 2429.336989][   T73]      netlink_unicast+0x449/0x710
[ 2429.336989][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2429.336989][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2429.336989][   T73]      ___sys_sendmsg+0xee/0x170
[ 2429.336989][   T73]      __sys_sendmsg+0xcd/0x170
[ 2429.336989][   T73]      do_syscall_64+0xc6/0x1e0
[ 2429.336989][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2429.336989][   T73] 
[ 2429.339065][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2429.339065][   T73]      dst_init+0x84/0x4a0
[ 2429.339065][   T73]      dst_alloc+0x97/0x150
[ 2429.339065][   T73]      ip6_dst_alloc+0x23/0x90
[ 2429.339065][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2429.339065][   T73]      ip6_pol_route+0x56f/0x840
[ 2429.339065][   T73]      fib6_rule_lookup+0x456/0x630
[ 2429.339065][   T73]      ip6_route_input+0x59c/0xa50
[ 2429.339065][   T73]      ipv6_rcv+0x397/0x810
[ 2429.339065][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2429.339065][   T73]      process_backlog+0x101/0x620
[ 2429.339065][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2429.339065][   T73]      net_rx_action+0x495/0xbe0
[ 2429.339065][   T73]      __do_softirq+0x1b5/0x7f6
[ 2429.339065][   T73] 
[ 2429.340951][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2429.340951][   T73]      netdev_get_by_index+0x5e/0x80
[ 2429.340951][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2429.340951][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2429.340951][   T73]      ip6_route_add+0x1c/0x140
[ 2429.340951][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2429.340951][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2429.340951][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2429.340951][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2429.340951][   T73]      netlink_rcv_skb+0x130/0x360
[ 2429.340951][   T73]      netlink_unicast+0x449/0x710
[ 2429.340951][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2429.340951][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2429.340951][   T73]      ___sys_sendmsg+0xee/0x170
[ 2429.340951][   T73]      __sys_sendmsg+0xcd/0x170
[ 2429.340951][   T73]      do_syscall_64+0xc6/0x1e0
[ 2429.340951][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2429.340951][   T73] 
[ 2429.343208][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2429.343208][   T73]      netdev_get_by_index+0x5e/0x80
[ 2429.343208][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2429.343208][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2429.343208][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2429.343208][   T73]      ipv6_add_addr+0x411/0x2000
[ 2429.343208][   T73]      inet6_addr_add+0x30e/0xa40
[ 2429.343208][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2429.343208][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2429.343208][   T73]      netlink_rcv_skb+0x130/0x360
[ 2429.343208][   T73]      netlink_unicast+0x449/0x710
[ 2429.343208][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2429.343208][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2429.343208][   T73]      ___sys_sendmsg+0xee/0x170
[ 2429.343208][   T73]      __sys_sendmsg+0xcd/0x170
[ 2429.343208][   T73]      do_syscall_64+0xc6/0x1e0
[ 2429.343208][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2429.343208][   T73] 
[ 2429.345462][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2429.345462][   T73]      netdev_get_by_index+0x5e/0x80
[ 2429.345462][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2429.345462][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2429.345462][   T73]      ip6_route_add+0x1c/0x140
[ 2429.345462][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2429.345462][   T73]      addrconf_add_dev+0xe2/0x170
[ 2429.345462][   T73]      inet6_addr_add+0x12f/0xa40
[ 2429.345462][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2429.345462][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2429.345462][   T73]      netlink_rcv_skb+0x130/0x360
[ 2429.345462][   T73]      netlink_unicast+0x449/0x710
[ 2429.345462][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2429.345462][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2429.345462][   T73]      ___sys_sendmsg+0xee/0x170
[ 2429.345462][   T73]      __sys_sendmsg+0xcd/0x170
[ 2429.345462][   T73]      do_syscall_64+0xc6/0x1e0
[ 2429.345462][   T73] 
[ 2429.347670][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2429.347670][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2429.347670][   T73]      ipv6_find_idev+0x102/0x170
[ 2429.347670][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2429.347670][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2429.347670][   T73]      netlink_rcv_skb+0x130/0x360
[ 2429.347670][   T73]      netlink_unicast+0x449/0x710
[ 2429.347670][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2429.347670][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2429.347670][   T73]      ___sys_sendmsg+0xee/0x170
[ 2429.347670][   T73]      __sys_sendmsg+0xcd/0x170
[ 2429.347670][   T73]      do_syscall_64+0xc6/0x1e0
[ 2429.347670][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2429.347670][   T73] 
[ 2429.349391][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2429.349391][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2429.349391][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2429.349391][   T73]      ipv6_find_idev+0x102/0x170
[ 2429.349391][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2429.349391][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2429.349391][   T73]      netlink_rcv_skb+0x130/0x360
[ 2429.349391][   T73]      netlink_unicast+0x449/0x710
[ 2429.349391][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2429.349391][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2429.349391][   T73]      ___sys_sendmsg+0xee/0x170
[ 2429.349391][   T73]      __sys_sendmsg+0xcd/0x170
[ 2429.349391][   T73]      do_syscall_64+0xc6/0x1e0
[ 2429.349391][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2429.349391][   T73] 
[ 2429.351340][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2429.351622][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2429.351622][   T73]      netdev_get_by_index+0x5e/0x80
[ 2429.351622][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2429.351622][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2429.351622][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2429.351622][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2429.351622][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2429.351622][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2429.351622][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2429.351622][   T73]      addrconf_dad_begin+0x310/0x670
[ 2429.351622][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2429.351622][   T73]      process_one_work+0x84d/0x18a0
[ 2429.351622][   T73]      worker_thread+0x587/0xd30
[ 2429.351622][   T73]      kthread+0x28a/0x350
[ 2429.351622][   T73]      ret_from_fork+0x31/0x70
[ 2429.351622][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2429.351622][   T73] 
[ 2429.353981][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2429.353981][   T73]      netdev_get_by_index+0x5e/0x80
[ 2429.353981][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2429.353981][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2429.353981][   T73]      ip6_route_add+0x1c/0x140
[ 2429.353981][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2429.353981][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2429.353981][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2429.353981][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2429.353981][   T73]      netlink_rcv_skb+0x130/0x360
[ 2429.353981][   T73]      netlink_unicast+0x449/0x710
[ 2429.353981][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2429.353981][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2429.353981][   T73]      ___sys_sendmsg+0xee/0x170
[ 2429.353981][   T73]      __sys_sendmsg+0xcd/0x170
[ 2429.353981][   T73]      do_syscall_64+0xc6/0x1e0
[ 2429.353981][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2429.353981][   T73] 
[ 2429.356441][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2429.356441][   T73]      netdev_get_by_index+0x5e/0x80
[ 2429.356441][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2429.356441][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2429.356441][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2429.356441][   T73]      ipv6_add_addr+0x411/0x2000
[ 2429.356441][   T73]      inet6_addr_add+0x30e/0xa40
[ 2429.356441][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2429.356441][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2429.356441][   T73]      netlink_rcv_skb+0x130/0x360
[ 2429.356441][   T73]      netlink_unicast+0x449/0x710
[ 2429.356441][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2429.356441][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2429.356441][   T73]      ___sys_sendmsg+0xee/0x170
[ 2429.356441][   T73]      __sys_sendmsg+0xcd/0x170
[ 2429.356441][   T73]      do_syscall_64+0xc6/0x1e0
[ 2429.356441][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2429.356441][   T73] 
[ 2429.358820][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2429.358820][   T73]      netdev_get_by_index+0x5e/0x80
[ 2429.358820][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2429.358820][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2429.358820][   T73]      ip6_route_add+0x1c/0x140
[ 2429.358820][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2429.358820][   T73]      addrconf_add_dev+0xe2/0x170
[ 2429.358820][   T73]      inet6_addr_add+0x12f/0xa40
[ 2429.358820][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2429.358820][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2429.358820][   T73]      netlink_rcv_skb+0x130/0x360
[ 2429.358820][   T73]      netlink_unicast+0x449/0x710
[ 2429.358820][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2429.358820][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2429.358820][   T73]      ___sys_sendmsg+0xee/0x170
[ 2429.358820][   T73]      __sys_sendmsg+0xcd/0x170
[ 2429.358820][   T73]      do_syscall_64+0xc6/0x1e0
[ 2429.358820][   T73] 
[ 2429.361283][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2429.361283][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2429.361283][   T73]      ipv6_find_idev+0x102/0x170
[ 2429.361283][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2429.361283][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2429.361283][   T73]      netlink_rcv_skb+0x130/0x360
[ 2429.361283][   T73]      netlink_unicast+0x449/0x710
[ 2429.361283][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2429.361283][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2429.361283][   T73]      ___sys_sendmsg+0xee/0x170
[ 2429.361283][   T73]      __sys_sendmsg+0xcd/0x170
[ 2429.361283][   T73]      do_syscall_64+0xc6/0x1e0
[ 2429.361283][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2429.361283][   T73] 
[ 2429.363746][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2429.363746][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2429.363746][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2429.363746][   T73]      ipv6_find_idev+0x102/0x170
[ 2429.363746][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2429.363746][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2429.363746][   T73]      netlink_rcv_skb+0x130/0x360
[ 2429.363746][   T73]      netlink_unicast+0x449/0x710
[ 2429.363746][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2429.363746][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2429.363746][   T73]      ___sys_sendmsg+0xee/0x170
[ 2429.363746][   T73]      __sys_sendmsg+0xcd/0x170
[ 2429.363746][   T73]      do_syscall_64+0xc6/0x1e0
[ 2429.363746][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2429.363746][   T73] 
[ 2439.543785][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2439.544273][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2439.544273][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2439.544273][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2439.544273][   T73]      fib6_nh_init+0xa22/0x1580
[ 2439.544273][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2439.544273][   T73]      ip6_route_add+0x1c/0x140
[ 2439.544273][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2439.544273][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2439.544273][   T73]      netlink_rcv_skb+0x130/0x360
[ 2439.544273][   T73]      netlink_unicast+0x449/0x710
[ 2439.544273][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2439.544273][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2439.544273][   T73]      ___sys_sendmsg+0xee/0x170
[ 2439.544273][   T73]      __sys_sendmsg+0xcd/0x170
[ 2439.544273][   T73]      do_syscall_64+0xc6/0x1e0
[ 2439.544273][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2439.544273][   T73] 
[ 2439.546364][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2439.546364][   T73]      dst_init+0x84/0x4a0
[ 2439.546364][   T73]      dst_alloc+0x97/0x150
[ 2439.546364][   T73]      ip6_dst_alloc+0x23/0x90
[ 2439.546364][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2439.546364][   T73]      ip6_pol_route+0x56f/0x840
[ 2439.546364][   T73]      fib6_rule_lookup+0x456/0x630
[ 2439.546364][   T73]      ip6_route_input+0x59c/0xa50
[ 2439.546364][   T73]      ipv6_rcv+0x397/0x810
[ 2439.546364][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2439.546364][   T73]      process_backlog+0x101/0x620
[ 2439.546364][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2439.546364][   T73]      net_rx_action+0x495/0xbe0
[ 2439.546364][   T73]      __do_softirq+0x1b5/0x7f6
[ 2439.546364][   T73] 
[ 2439.548181][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2439.548181][   T73]      netdev_get_by_index+0x5e/0x80
[ 2439.548181][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2439.548181][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2439.548181][   T73]      ip6_route_add+0x1c/0x140
[ 2439.548181][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2439.548181][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2439.548181][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2439.548181][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2439.548181][   T73]      netlink_rcv_skb+0x130/0x360
[ 2439.548181][   T73]      netlink_unicast+0x449/0x710
[ 2439.548181][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2439.548181][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2439.548181][   T73]      ___sys_sendmsg+0xee/0x170
[ 2439.548181][   T73]      __sys_sendmsg+0xcd/0x170
[ 2439.548181][   T73]      do_syscall_64+0xc6/0x1e0
[ 2439.548181][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2439.548181][   T73] 
[ 2439.550403][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2439.550403][   T73]      netdev_get_by_index+0x5e/0x80
[ 2439.550403][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2439.550403][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2439.550403][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2439.550403][   T73]      ipv6_add_addr+0x411/0x2000
[ 2439.550403][   T73]      inet6_addr_add+0x30e/0xa40
[ 2439.550403][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2439.550403][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2439.550403][   T73]      netlink_rcv_skb+0x130/0x360
[ 2439.550403][   T73]      netlink_unicast+0x449/0x710
[ 2439.550403][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2439.550403][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2439.550403][   T73]      ___sys_sendmsg+0xee/0x170
[ 2439.550403][   T73]      __sys_sendmsg+0xcd/0x170
[ 2439.550403][   T73]      do_syscall_64+0xc6/0x1e0
[ 2439.550403][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2439.550403][   T73] 
[ 2439.552616][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2439.552616][   T73]      netdev_get_by_index+0x5e/0x80
[ 2439.552616][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2439.552616][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2439.552616][   T73]      ip6_route_add+0x1c/0x140
[ 2439.552616][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2439.552616][   T73]      addrconf_add_dev+0xe2/0x170
[ 2439.552616][   T73]      inet6_addr_add+0x12f/0xa40
[ 2439.552616][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2439.552616][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2439.552616][   T73]      netlink_rcv_skb+0x130/0x360
[ 2439.552616][   T73]      netlink_unicast+0x449/0x710
[ 2439.552616][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2439.552616][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2439.552616][   T73]      ___sys_sendmsg+0xee/0x170
[ 2439.552616][   T73]      __sys_sendmsg+0xcd/0x170
[ 2439.552616][   T73]      do_syscall_64+0xc6/0x1e0
[ 2439.552616][   T73] 
[ 2439.554784][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2439.554784][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2439.554784][   T73]      ipv6_find_idev+0x102/0x170
[ 2439.554784][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2439.554784][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2439.554784][   T73]      netlink_rcv_skb+0x130/0x360
[ 2439.554784][   T73]      netlink_unicast+0x449/0x710
[ 2439.554784][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2439.554784][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2439.554784][   T73]      ___sys_sendmsg+0xee/0x170
[ 2439.554784][   T73]      __sys_sendmsg+0xcd/0x170
[ 2439.554784][   T73]      do_syscall_64+0xc6/0x1e0
[ 2439.554784][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2439.554784][   T73] 
[ 2439.556458][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2439.556458][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2439.556458][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2439.556458][   T73]      ipv6_find_idev+0x102/0x170
[ 2439.556458][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2439.556458][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2439.556458][   T73]      netlink_rcv_skb+0x130/0x360
[ 2439.556458][   T73]      netlink_unicast+0x449/0x710
[ 2439.556458][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2439.556458][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2439.556458][   T73]      ___sys_sendmsg+0xee/0x170
[ 2439.556458][   T73]      __sys_sendmsg+0xcd/0x170
[ 2439.556458][   T73]      do_syscall_64+0xc6/0x1e0
[ 2439.556458][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2439.556458][   T73] 
[ 2439.558324][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2439.558632][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2439.558632][   T73]      netdev_get_by_index+0x5e/0x80
[ 2439.558632][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2439.558632][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2439.558632][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2439.558632][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2439.558632][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2439.558632][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2439.558632][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2439.558632][   T73]      addrconf_dad_begin+0x310/0x670
[ 2439.558632][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2439.558632][   T73]      process_one_work+0x84d/0x18a0
[ 2439.558632][   T73]      worker_thread+0x587/0xd30
[ 2439.558632][   T73]      kthread+0x28a/0x350
[ 2439.558632][   T73]      ret_from_fork+0x31/0x70
[ 2439.558632][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2439.558632][   T73] 
[ 2439.560702][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2439.560702][   T73]      netdev_get_by_index+0x5e/0x80
[ 2439.560702][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2439.560702][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2439.560702][   T73]      ip6_route_add+0x1c/0x140
[ 2439.560702][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2439.560702][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2439.560702][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2439.560702][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2439.560702][   T73]      netlink_rcv_skb+0x130/0x360
[ 2439.560702][   T73]      netlink_unicast+0x449/0x710
[ 2439.560702][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2439.560702][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2439.560702][   T73]      ___sys_sendmsg+0xee/0x170
[ 2439.560702][   T73]      __sys_sendmsg+0xcd/0x170
[ 2439.560702][   T73]      do_syscall_64+0xc6/0x1e0
[ 2439.560702][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2439.560702][   T73] 
[ 2439.563336][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2439.563336][   T73]      netdev_get_by_index+0x5e/0x80
[ 2439.563336][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2439.563336][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2439.563336][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2439.563336][   T73]      ipv6_add_addr+0x411/0x2000
[ 2439.563336][   T73]      inet6_addr_add+0x30e/0xa40
[ 2439.563336][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2439.563336][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2439.563336][   T73]      netlink_rcv_skb+0x130/0x360
[ 2439.563336][   T73]      netlink_unicast+0x449/0x710
[ 2439.563336][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2439.563336][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2439.563336][   T73]      ___sys_sendmsg+0xee/0x170
[ 2439.563336][   T73]      __sys_sendmsg+0xcd/0x170
[ 2439.563336][   T73]      do_syscall_64+0xc6/0x1e0
[ 2439.563336][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2439.563336][   T73] 
[ 2439.565557][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2439.565557][   T73]      netdev_get_by_index+0x5e/0x80
[ 2439.565557][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2439.565557][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2439.565557][   T73]      ip6_route_add+0x1c/0x140
[ 2439.565557][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2439.565557][   T73]      addrconf_add_dev+0xe2/0x170
[ 2439.565557][   T73]      inet6_addr_add+0x12f/0xa40
[ 2439.565557][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2439.565557][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2439.565557][   T73]      netlink_rcv_skb+0x130/0x360
[ 2439.565557][   T73]      netlink_unicast+0x449/0x710
[ 2439.565557][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2439.565557][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2439.565557][   T73]      ___sys_sendmsg+0xee/0x170
[ 2439.565557][   T73]      __sys_sendmsg+0xcd/0x170
[ 2439.565557][   T73]      do_syscall_64+0xc6/0x1e0
[ 2439.565557][   T73] 
[ 2439.567674][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2439.567674][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2439.567674][   T73]      ipv6_find_idev+0x102/0x170
[ 2439.567674][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2439.567674][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2439.567674][   T73]      netlink_rcv_skb+0x130/0x360
[ 2439.567674][   T73]      netlink_unicast+0x449/0x710
[ 2439.567674][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2439.567674][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2439.567674][   T73]      ___sys_sendmsg+0xee/0x170
[ 2439.567674][   T73]      __sys_sendmsg+0xcd/0x170
[ 2439.567674][   T73]      do_syscall_64+0xc6/0x1e0
[ 2439.567674][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2439.567674][   T73] 
[ 2439.569220][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2439.569220][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2439.569220][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2439.569220][   T73]      ipv6_find_idev+0x102/0x170
[ 2439.569220][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2439.569220][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2439.569220][   T73]      netlink_rcv_skb+0x130/0x360
[ 2439.569220][   T73]      netlink_unicast+0x449/0x710
[ 2439.569220][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2439.569220][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2439.569220][   T73]      ___sys_sendmsg+0xee/0x170
[ 2439.569220][   T73]      __sys_sendmsg+0xcd/0x170
[ 2439.569220][   T73]      do_syscall_64+0xc6/0x1e0
[ 2439.569220][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2439.569220][   T73] 
[ 2439.570973][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2439.571248][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2439.571248][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2439.571248][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2439.571248][   T73]      fib6_nh_init+0xa22/0x1580
[ 2439.571248][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2439.571248][   T73]      ip6_route_add+0x1c/0x140
[ 2439.571248][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2439.571248][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2439.571248][   T73]      netlink_rcv_skb+0x130/0x360
[ 2439.571248][   T73]      netlink_unicast+0x449/0x710
[ 2439.571248][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2439.571248][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2439.571248][   T73]      ___sys_sendmsg+0xee/0x170
[ 2439.571248][   T73]      __sys_sendmsg+0xcd/0x170
[ 2439.571248][   T73]      do_syscall_64+0xc6/0x1e0
[ 2439.571248][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2439.571248][   T73] 
[ 2439.573341][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2439.573341][   T73]      dst_init+0x84/0x4a0
[ 2439.573341][   T73]      dst_alloc+0x97/0x150
[ 2439.573341][   T73]      ip6_dst_alloc+0x23/0x90
[ 2439.573341][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2439.573341][   T73]      ip6_pol_route+0x56f/0x840
[ 2439.573341][   T73]      fib6_rule_lookup+0x456/0x630
[ 2439.573341][   T73]      ip6_route_input+0x59c/0xa50
[ 2439.573341][   T73]      ipv6_rcv+0x397/0x810
[ 2439.573341][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2439.573341][   T73]      process_backlog+0x101/0x620
[ 2439.573341][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2439.573341][   T73]      net_rx_action+0x495/0xbe0
[ 2439.573341][   T73]      __do_softirq+0x1b5/0x7f6
[ 2439.573341][   T73] 
[ 2439.575252][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2439.575252][   T73]      netdev_get_by_index+0x5e/0x80
[ 2439.575252][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2439.575252][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2439.575252][   T73]      ip6_route_add+0x1c/0x140
[ 2439.575252][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2439.575252][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2439.575252][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2439.575252][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2439.575252][   T73]      netlink_rcv_skb+0x130/0x360
[ 2439.575252][   T73]      netlink_unicast+0x449/0x710
[ 2439.575252][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2439.575252][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2439.575252][   T73]      ___sys_sendmsg+0xee/0x170
[ 2439.575252][   T73]      __sys_sendmsg+0xcd/0x170
[ 2439.575252][   T73]      do_syscall_64+0xc6/0x1e0
[ 2439.575252][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2439.575252][   T73] 
[ 2439.577511][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2439.577511][   T73]      netdev_get_by_index+0x5e/0x80
[ 2439.577511][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2439.577511][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2439.577511][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2439.577511][   T73]      ipv6_add_addr+0x411/0x2000
[ 2439.577511][   T73]      inet6_addr_add+0x30e/0xa40
[ 2439.577511][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2439.577511][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2439.577511][   T73]      netlink_rcv_skb+0x130/0x360
[ 2439.577511][   T73]      netlink_unicast+0x449/0x710
[ 2439.577511][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2439.577511][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2439.577511][   T73]      ___sys_sendmsg+0xee/0x170
[ 2439.577511][   T73]      __sys_sendmsg+0xcd/0x170
[ 2439.577511][   T73]      do_syscall_64+0xc6/0x1e0
[ 2439.577511][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2439.577511][   T73] 
[ 2439.579764][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2439.579764][   T73]      netdev_get_by_index+0x5e/0x80
[ 2439.579764][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2439.579764][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2439.579764][   T73]      ip6_route_add+0x1c/0x140
[ 2439.579764][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2439.579764][   T73]      addrconf_add_dev+0xe2/0x170
[ 2439.579764][   T73]      inet6_addr_add+0x12f/0xa40
[ 2439.579764][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2439.579764][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2439.579764][   T73]      netlink_rcv_skb+0x130/0x360
[ 2439.579764][   T73]      netlink_unicast+0x449/0x710
[ 2439.579764][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2439.579764][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2439.579764][   T73]      ___sys_sendmsg+0xee/0x170
[ 2439.579764][   T73]      __sys_sendmsg+0xcd/0x170
[ 2439.579764][   T73]      do_syscall_64+0xc6/0x1e0
[ 2439.579764][   T73] 
[ 2439.582029][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2439.582029][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2439.582029][   T73]      ipv6_find_idev+0x102/0x170
[ 2439.582029][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2439.582029][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2439.582029][   T73]      netlink_rcv_skb+0x130/0x360
[ 2439.582029][   T73]      netlink_unicast+0x449/0x710
[ 2439.582029][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2439.582029][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2439.582029][   T73]      ___sys_sendmsg+0xee/0x170
[ 2439.582029][   T73]      __sys_sendmsg+0xcd/0x170
[ 2439.582029][   T73]      do_syscall_64+0xc6/0x1e0
[ 2439.582029][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2439.582029][   T73] 
[ 2439.583761][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2439.583761][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2439.583761][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2439.583761][   T73]      ipv6_find_idev+0x102/0x170
[ 2439.583761][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2439.583761][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2439.583761][   T73]      netlink_rcv_skb+0x130/0x360
[ 2439.583761][   T73]      netlink_unicast+0x449/0x710
[ 2439.583761][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2439.583761][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2439.583761][   T73]      ___sys_sendmsg+0xee/0x170
[ 2439.583761][   T73]      __sys_sendmsg+0xcd/0x170
[ 2439.583761][   T73]      do_syscall_64+0xc6/0x1e0
[ 2439.583761][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2439.583761][   T73] 
[ 2439.585706][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2439.585982][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2439.585982][   T73]      netdev_get_by_index+0x5e/0x80
[ 2439.585982][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2439.585982][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2439.585982][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2439.585982][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2439.585982][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2439.585982][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2439.585982][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2439.585982][   T73]      addrconf_dad_begin+0x310/0x670
[ 2439.585982][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2439.585982][   T73]      process_one_work+0x84d/0x18a0
[ 2439.585982][   T73]      worker_thread+0x587/0xd30
[ 2439.585982][   T73]      kthread+0x28a/0x350
[ 2439.585982][   T73]      ret_from_fork+0x31/0x70
[ 2439.585982][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2439.585982][   T73] 
[ 2439.588148][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2439.588148][   T73]      netdev_get_by_index+0x5e/0x80
[ 2439.588148][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2439.588148][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2439.588148][   T73]      ip6_route_add+0x1c/0x140
[ 2439.588148][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2439.588148][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2439.588148][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2439.588148][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2439.588148][   T73]      netlink_rcv_skb+0x130/0x360
[ 2439.588148][   T73]      netlink_unicast+0x449/0x710
[ 2439.588148][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2439.588148][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2439.588148][   T73]      ___sys_sendmsg+0xee/0x170
[ 2439.588148][   T73]      __sys_sendmsg+0xcd/0x170
[ 2439.588148][   T73]      do_syscall_64+0xc6/0x1e0
[ 2439.588148][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2439.588148][   T73] 
[ 2439.590420][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2439.590420][   T73]      netdev_get_by_index+0x5e/0x80
[ 2439.590420][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2439.590420][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2439.590420][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2439.590420][   T73]      ipv6_add_addr+0x411/0x2000
[ 2439.590420][   T73]      inet6_addr_add+0x30e/0xa40
[ 2439.590420][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2439.590420][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2439.590420][   T73]      netlink_rcv_skb+0x130/0x360
[ 2439.590420][   T73]      netlink_unicast+0x449/0x710
[ 2439.590420][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2439.590420][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2439.590420][   T73]      ___sys_sendmsg+0xee/0x170
[ 2439.590420][   T73]      __sys_sendmsg+0xcd/0x170
[ 2439.590420][   T73]      do_syscall_64+0xc6/0x1e0
[ 2439.590420][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2439.590420][   T73] 
[ 2439.592614][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2439.592614][   T73]      netdev_get_by_index+0x5e/0x80
[ 2439.592614][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2439.592614][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2439.592614][   T73]      ip6_route_add+0x1c/0x140
[ 2439.592614][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2439.592614][   T73]      addrconf_add_dev+0xe2/0x170
[ 2439.592614][   T73]      inet6_addr_add+0x12f/0xa40
[ 2439.592614][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2439.592614][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2439.592614][   T73]      netlink_rcv_skb+0x130/0x360
[ 2439.592614][   T73]      netlink_unicast+0x449/0x710
[ 2439.592614][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2439.592614][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2439.592614][   T73]      ___sys_sendmsg+0xee/0x170
[ 2439.592614][   T73]      __sys_sendmsg+0xcd/0x170
[ 2439.592614][   T73]      do_syscall_64+0xc6/0x1e0
[ 2439.592614][   T73] 
[ 2439.594919][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2439.594919][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2439.594919][   T73]      ipv6_find_idev+0x102/0x170
[ 2439.594919][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2439.594919][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2439.594919][   T73]      netlink_rcv_skb+0x130/0x360
[ 2439.594919][   T73]      netlink_unicast+0x449/0x710
[ 2439.594919][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2439.594919][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2439.594919][   T73]      ___sys_sendmsg+0xee/0x170
[ 2439.594919][   T73]      __sys_sendmsg+0xcd/0x170
[ 2439.594919][   T73]      do_syscall_64+0xc6/0x1e0
[ 2439.594919][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2439.594919][   T73] 
[ 2439.596652][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2439.596652][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2439.596652][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2439.596652][   T73]      ipv6_find_idev+0x102/0x170
[ 2439.596652][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2439.596652][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2439.596652][   T73]      netlink_rcv_skb+0x130/0x360
[ 2439.596652][   T73]      netlink_unicast+0x449/0x710
[ 2439.596652][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2439.596652][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2439.596652][   T73]      ___sys_sendmsg+0xee/0x170
[ 2439.596652][   T73]      __sys_sendmsg+0xcd/0x170
[ 2439.596652][   T73]      do_syscall_64+0xc6/0x1e0
[ 2439.596652][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2439.596652][   T73] 
[ 2449.751770][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2449.752217][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2449.752217][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2449.752217][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2449.752217][   T73]      fib6_nh_init+0xa22/0x1580
[ 2449.752217][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2449.752217][   T73]      ip6_route_add+0x1c/0x140
[ 2449.752217][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2449.752217][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2449.752217][   T73]      netlink_rcv_skb+0x130/0x360
[ 2449.752217][   T73]      netlink_unicast+0x449/0x710
[ 2449.752217][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2449.752217][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2449.752217][   T73]      ___sys_sendmsg+0xee/0x170
[ 2449.752217][   T73]      __sys_sendmsg+0xcd/0x170
[ 2449.752217][   T73]      do_syscall_64+0xc6/0x1e0
[ 2449.752217][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2449.752217][   T73] 
[ 2449.754150][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2449.754150][   T73]      dst_init+0x84/0x4a0
[ 2449.754150][   T73]      dst_alloc+0x97/0x150
[ 2449.754150][   T73]      ip6_dst_alloc+0x23/0x90
[ 2449.754150][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2449.754150][   T73]      ip6_pol_route+0x56f/0x840
[ 2449.754150][   T73]      fib6_rule_lookup+0x456/0x630
[ 2449.754150][   T73]      ip6_route_input+0x59c/0xa50
[ 2449.754150][   T73]      ipv6_rcv+0x397/0x810
[ 2449.754150][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2449.754150][   T73]      process_backlog+0x101/0x620
[ 2449.754150][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2449.754150][   T73]      net_rx_action+0x495/0xbe0
[ 2449.754150][   T73]      __do_softirq+0x1b5/0x7f6
[ 2449.754150][   T73] 
[ 2449.755800][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2449.755800][   T73]      netdev_get_by_index+0x5e/0x80
[ 2449.755800][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2449.755800][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2449.755800][   T73]      ip6_route_add+0x1c/0x140
[ 2449.755800][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2449.755800][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2449.755800][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2449.755800][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2449.755800][   T73]      netlink_rcv_skb+0x130/0x360
[ 2449.755800][   T73]      netlink_unicast+0x449/0x710
[ 2449.755800][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2449.755800][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2449.755800][   T73]      ___sys_sendmsg+0xee/0x170
[ 2449.755800][   T73]      __sys_sendmsg+0xcd/0x170
[ 2449.755800][   T73]      do_syscall_64+0xc6/0x1e0
[ 2449.755800][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2449.755800][   T73] 
[ 2449.757829][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2449.757829][   T73]      netdev_get_by_index+0x5e/0x80
[ 2449.757829][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2449.757829][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2449.757829][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2449.757829][   T73]      ipv6_add_addr+0x411/0x2000
[ 2449.757829][   T73]      inet6_addr_add+0x30e/0xa40
[ 2449.757829][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2449.757829][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2449.757829][   T73]      netlink_rcv_skb+0x130/0x360
[ 2449.757829][   T73]      netlink_unicast+0x449/0x710
[ 2449.757829][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2449.757829][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2449.757829][   T73]      ___sys_sendmsg+0xee/0x170
[ 2449.757829][   T73]      __sys_sendmsg+0xcd/0x170
[ 2449.757829][   T73]      do_syscall_64+0xc6/0x1e0
[ 2449.757829][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2449.757829][   T73] 
[ 2449.759846][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2449.759846][   T73]      netdev_get_by_index+0x5e/0x80
[ 2449.759846][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2449.759846][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2449.759846][   T73]      ip6_route_add+0x1c/0x140
[ 2449.759846][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2449.759846][   T73]      addrconf_add_dev+0xe2/0x170
[ 2449.759846][   T73]      inet6_addr_add+0x12f/0xa40
[ 2449.759846][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2449.759846][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2449.759846][   T73]      netlink_rcv_skb+0x130/0x360
[ 2449.759846][   T73]      netlink_unicast+0x449/0x710
[ 2449.759846][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2449.759846][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2449.759846][   T73]      ___sys_sendmsg+0xee/0x170
[ 2449.759846][   T73]      __sys_sendmsg+0xcd/0x170
[ 2449.759846][   T73]      do_syscall_64+0xc6/0x1e0
[ 2449.759846][   T73] 
[ 2449.761831][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2449.761831][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2449.761831][   T73]      ipv6_find_idev+0x102/0x170
[ 2449.761831][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2449.761831][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2449.761831][   T73]      netlink_rcv_skb+0x130/0x360
[ 2449.761831][   T73]      netlink_unicast+0x449/0x710
[ 2449.761831][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2449.761831][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2449.761831][   T73]      ___sys_sendmsg+0xee/0x170
[ 2449.761831][   T73]      __sys_sendmsg+0xcd/0x170
[ 2449.761831][   T73]      do_syscall_64+0xc6/0x1e0
[ 2449.761831][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2449.761831][   T73] 
[ 2449.763394][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2449.763394][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2449.763394][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2449.763394][   T73]      ipv6_find_idev+0x102/0x170
[ 2449.763394][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2449.763394][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2449.763394][   T73]      netlink_rcv_skb+0x130/0x360
[ 2449.763394][   T73]      netlink_unicast+0x449/0x710
[ 2449.763394][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2449.763394][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2449.763394][   T73]      ___sys_sendmsg+0xee/0x170
[ 2449.763394][   T73]      __sys_sendmsg+0xcd/0x170
[ 2449.763394][   T73]      do_syscall_64+0xc6/0x1e0
[ 2449.763394][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2449.763394][   T73] 
[ 2449.765131][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2449.765447][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2449.765447][   T73]      netdev_get_by_index+0x5e/0x80
[ 2449.765447][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2449.765447][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2449.765447][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2449.765447][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2449.765447][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2449.765447][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2449.765447][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2449.765447][   T73]      addrconf_dad_begin+0x310/0x670
[ 2449.765447][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2449.765447][   T73]      process_one_work+0x84d/0x18a0
[ 2449.765447][   T73]      worker_thread+0x587/0xd30
[ 2449.765447][   T73]      kthread+0x28a/0x350
[ 2449.765447][   T73]      ret_from_fork+0x31/0x70
[ 2449.765447][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2449.765447][   T73] 
[ 2449.767371][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2449.767371][   T73]      netdev_get_by_index+0x5e/0x80
[ 2449.767371][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2449.767371][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2449.767371][   T73]      ip6_route_add+0x1c/0x140
[ 2449.767371][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2449.767371][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2449.767371][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2449.767371][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2449.767371][   T73]      netlink_rcv_skb+0x130/0x360
[ 2449.767371][   T73]      netlink_unicast+0x449/0x710
[ 2449.767371][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2449.767371][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2449.767371][   T73]      ___sys_sendmsg+0xee/0x170
[ 2449.767371][   T73]      __sys_sendmsg+0xcd/0x170
[ 2449.767371][   T73]      do_syscall_64+0xc6/0x1e0
[ 2449.767371][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2449.767371][   T73] 
[ 2449.769403][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2449.769403][   T73]      netdev_get_by_index+0x5e/0x80
[ 2449.769403][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2449.769403][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2449.769403][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2449.769403][   T73]      ipv6_add_addr+0x411/0x2000
[ 2449.769403][   T73]      inet6_addr_add+0x30e/0xa40
[ 2449.769403][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2449.769403][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2449.769403][   T73]      netlink_rcv_skb+0x130/0x360
[ 2449.769403][   T73]      netlink_unicast+0x449/0x710
[ 2449.769403][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2449.769403][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2449.769403][   T73]      ___sys_sendmsg+0xee/0x170
[ 2449.769403][   T73]      __sys_sendmsg+0xcd/0x170
[ 2449.769403][   T73]      do_syscall_64+0xc6/0x1e0
[ 2449.769403][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2449.769403][   T73] 
[ 2449.771443][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2449.771443][   T73]      netdev_get_by_index+0x5e/0x80
[ 2449.771443][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2449.771443][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2449.771443][   T73]      ip6_route_add+0x1c/0x140
[ 2449.771443][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2449.771443][   T73]      addrconf_add_dev+0xe2/0x170
[ 2449.771443][   T73]      inet6_addr_add+0x12f/0xa40
[ 2449.771443][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2449.771443][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2449.771443][   T73]      netlink_rcv_skb+0x130/0x360
[ 2449.771443][   T73]      netlink_unicast+0x449/0x710
[ 2449.771443][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2449.771443][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2449.771443][   T73]      ___sys_sendmsg+0xee/0x170
[ 2449.771443][   T73]      __sys_sendmsg+0xcd/0x170
[ 2449.771443][   T73]      do_syscall_64+0xc6/0x1e0
[ 2449.771443][   T73] 
[ 2449.773432][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2449.773432][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2449.773432][   T73]      ipv6_find_idev+0x102/0x170
[ 2449.773432][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2449.773432][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2449.773432][   T73]      netlink_rcv_skb+0x130/0x360
[ 2449.773432][   T73]      netlink_unicast+0x449/0x710
[ 2449.773432][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2449.773432][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2449.773432][   T73]      ___sys_sendmsg+0xee/0x170
[ 2449.773432][   T73]      __sys_sendmsg+0xcd/0x170
[ 2449.773432][   T73]      do_syscall_64+0xc6/0x1e0
[ 2449.773432][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2449.773432][   T73] 
[ 2449.774997][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2449.774997][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2449.774997][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2449.774997][   T73]      ipv6_find_idev+0x102/0x170
[ 2449.774997][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2449.774997][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2449.774997][   T73]      netlink_rcv_skb+0x130/0x360
[ 2449.774997][   T73]      netlink_unicast+0x449/0x710
[ 2449.774997][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2449.774997][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2449.774997][   T73]      ___sys_sendmsg+0xee/0x170
[ 2449.774997][   T73]      __sys_sendmsg+0xcd/0x170
[ 2449.774997][   T73]      do_syscall_64+0xc6/0x1e0
[ 2449.774997][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2449.774997][   T73] 
[ 2449.776705][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2449.776985][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2449.776985][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2449.776985][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2449.776985][   T73]      fib6_nh_init+0xa22/0x1580
[ 2449.776985][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2449.776985][   T73]      ip6_route_add+0x1c/0x140
[ 2449.776985][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2449.776985][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2449.776985][   T73]      netlink_rcv_skb+0x130/0x360
[ 2449.776985][   T73]      netlink_unicast+0x449/0x710
[ 2449.776985][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2449.776985][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2449.776985][   T73]      ___sys_sendmsg+0xee/0x170
[ 2449.776985][   T73]      __sys_sendmsg+0xcd/0x170
[ 2449.776985][   T73]      do_syscall_64+0xc6/0x1e0
[ 2449.776985][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2449.776985][   T73] 
[ 2449.779064][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2449.779064][   T73]      dst_init+0x84/0x4a0
[ 2449.779064][   T73]      dst_alloc+0x97/0x150
[ 2449.779064][   T73]      ip6_dst_alloc+0x23/0x90
[ 2449.779064][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2449.779064][   T73]      ip6_pol_route+0x56f/0x840
[ 2449.779064][   T73]      fib6_rule_lookup+0x456/0x630
[ 2449.779064][   T73]      ip6_route_input+0x59c/0xa50
[ 2449.779064][   T73]      ipv6_rcv+0x397/0x810
[ 2449.779064][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2449.779064][   T73]      process_backlog+0x101/0x620
[ 2449.779064][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2449.779064][   T73]      net_rx_action+0x495/0xbe0
[ 2449.779064][   T73]      __do_softirq+0x1b5/0x7f6
[ 2449.779064][   T73] 
[ 2449.781003][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2449.781003][   T73]      netdev_get_by_index+0x5e/0x80
[ 2449.781003][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2449.781003][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2449.781003][   T73]      ip6_route_add+0x1c/0x140
[ 2449.781003][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2449.781003][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2449.781003][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2449.781003][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2449.781003][   T73]      netlink_rcv_skb+0x130/0x360
[ 2449.781003][   T73]      netlink_unicast+0x449/0x710
[ 2449.781003][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2449.781003][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2449.781003][   T73]      ___sys_sendmsg+0xee/0x170
[ 2449.781003][   T73]      __sys_sendmsg+0xcd/0x170
[ 2449.781003][   T73]      do_syscall_64+0xc6/0x1e0
[ 2449.781003][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2449.781003][   T73] 
[ 2449.783298][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2449.783298][   T73]      netdev_get_by_index+0x5e/0x80
[ 2449.783298][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2449.783298][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2449.783298][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2449.783298][   T73]      ipv6_add_addr+0x411/0x2000
[ 2449.783298][   T73]      inet6_addr_add+0x30e/0xa40
[ 2449.783298][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2449.783298][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2449.783298][   T73]      netlink_rcv_skb+0x130/0x360
[ 2449.783298][   T73]      netlink_unicast+0x449/0x710
[ 2449.783298][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2449.783298][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2449.783298][   T73]      ___sys_sendmsg+0xee/0x170
[ 2449.783298][   T73]      __sys_sendmsg+0xcd/0x170
[ 2449.783298][   T73]      do_syscall_64+0xc6/0x1e0
[ 2449.783298][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2449.783298][   T73] 
[ 2449.785577][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2449.785577][   T73]      netdev_get_by_index+0x5e/0x80
[ 2449.785577][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2449.785577][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2449.785577][   T73]      ip6_route_add+0x1c/0x140
[ 2449.785577][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2449.785577][   T73]      addrconf_add_dev+0xe2/0x170
[ 2449.785577][   T73]      inet6_addr_add+0x12f/0xa40
[ 2449.785577][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2449.785577][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2449.785577][   T73]      netlink_rcv_skb+0x130/0x360
[ 2449.785577][   T73]      netlink_unicast+0x449/0x710
[ 2449.785577][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2449.785577][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2449.785577][   T73]      ___sys_sendmsg+0xee/0x170
[ 2449.785577][   T73]      __sys_sendmsg+0xcd/0x170
[ 2449.785577][   T73]      do_syscall_64+0xc6/0x1e0
[ 2449.785577][   T73] 
[ 2449.787821][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2449.787821][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2449.787821][   T73]      ipv6_find_idev+0x102/0x170
[ 2449.787821][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2449.787821][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2449.787821][   T73]      netlink_rcv_skb+0x130/0x360
[ 2449.787821][   T73]      netlink_unicast+0x449/0x710
[ 2449.787821][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2449.787821][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2449.787821][   T73]      ___sys_sendmsg+0xee/0x170
[ 2449.787821][   T73]      __sys_sendmsg+0xcd/0x170
[ 2449.787821][   T73]      do_syscall_64+0xc6/0x1e0
[ 2449.787821][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2449.787821][   T73] 
[ 2449.789560][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2449.789560][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2449.789560][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2449.789560][   T73]      ipv6_find_idev+0x102/0x170
[ 2449.789560][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2449.789560][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2449.789560][   T73]      netlink_rcv_skb+0x130/0x360
[ 2449.789560][   T73]      netlink_unicast+0x449/0x710
[ 2449.789560][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2449.789560][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2449.789560][   T73]      ___sys_sendmsg+0xee/0x170
[ 2449.789560][   T73]      __sys_sendmsg+0xcd/0x170
[ 2449.789560][   T73]      do_syscall_64+0xc6/0x1e0
[ 2449.789560][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2449.789560][   T73] 
[ 2449.791532][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2449.792257][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2449.792257][   T73]      netdev_get_by_index+0x5e/0x80
[ 2449.792257][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2449.792257][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2449.792257][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2449.792257][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2449.792257][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2449.792257][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2449.792257][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2449.792257][   T73]      addrconf_dad_begin+0x310/0x670
[ 2449.792257][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2449.792257][   T73]      process_one_work+0x84d/0x18a0
[ 2449.792257][   T73]      worker_thread+0x587/0xd30
[ 2449.792257][   T73]      kthread+0x28a/0x350
[ 2449.792257][   T73]      ret_from_fork+0x31/0x70
[ 2449.792257][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2449.792257][   T73] 
[ 2449.794228][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2449.794228][   T73]      netdev_get_by_index+0x5e/0x80
[ 2449.794228][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2449.794228][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2449.794228][   T73]      ip6_route_add+0x1c/0x140
[ 2449.794228][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2449.794228][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2449.794228][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2449.794228][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2449.794228][   T73]      netlink_rcv_skb+0x130/0x360
[ 2449.794228][   T73]      netlink_unicast+0x449/0x710
[ 2449.794228][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2449.794228][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2449.794228][   T73]      ___sys_sendmsg+0xee/0x170
[ 2449.794228][   T73]      __sys_sendmsg+0xcd/0x170
[ 2449.794228][   T73]      do_syscall_64+0xc6/0x1e0
[ 2449.794228][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2449.794228][   T73] 
[ 2449.796369][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2449.796369][   T73]      netdev_get_by_index+0x5e/0x80
[ 2449.796369][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2449.796369][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2449.796369][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2449.796369][   T73]      ipv6_add_addr+0x411/0x2000
[ 2449.796369][   T73]      inet6_addr_add+0x30e/0xa40
[ 2449.796369][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2449.796369][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2449.796369][   T73]      netlink_rcv_skb+0x130/0x360
[ 2449.796369][   T73]      netlink_unicast+0x449/0x710
[ 2449.796369][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2449.796369][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2449.796369][   T73]      ___sys_sendmsg+0xee/0x170
[ 2449.796369][   T73]      __sys_sendmsg+0xcd/0x170
[ 2449.796369][   T73]      do_syscall_64+0xc6/0x1e0
[ 2449.796369][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2449.796369][   T73] 
[ 2449.798641][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2449.798641][   T73]      netdev_get_by_index+0x5e/0x80
[ 2449.798641][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2449.798641][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2449.798641][   T73]      ip6_route_add+0x1c/0x140
[ 2449.798641][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2449.798641][   T73]      addrconf_add_dev+0xe2/0x170
[ 2449.798641][   T73]      inet6_addr_add+0x12f/0xa40
[ 2449.798641][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2449.798641][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2449.798641][   T73]      netlink_rcv_skb+0x130/0x360
[ 2449.798641][   T73]      netlink_unicast+0x449/0x710
[ 2449.798641][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2449.798641][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2449.798641][   T73]      ___sys_sendmsg+0xee/0x170
[ 2449.798641][   T73]      __sys_sendmsg+0xcd/0x170
[ 2449.798641][   T73]      do_syscall_64+0xc6/0x1e0
[ 2449.798641][   T73] 
[ 2449.800828][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2449.800828][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2449.800828][   T73]      ipv6_find_idev+0x102/0x170
[ 2449.800828][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2449.800828][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2449.800828][   T73]      netlink_rcv_skb+0x130/0x360
[ 2449.800828][   T73]      netlink_unicast+0x449/0x710
[ 2449.800828][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2449.800828][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2449.800828][   T73]      ___sys_sendmsg+0xee/0x170
[ 2449.800828][   T73]      __sys_sendmsg+0xcd/0x170
[ 2449.800828][   T73]      do_syscall_64+0xc6/0x1e0
[ 2449.800828][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2449.800828][   T73] 
[ 2449.802639][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2449.802639][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2449.802639][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2449.802639][   T73]      ipv6_find_idev+0x102/0x170
[ 2449.802639][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2449.802639][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2449.802639][   T73]      netlink_rcv_skb+0x130/0x360
[ 2449.802639][   T73]      netlink_unicast+0x449/0x710
[ 2449.802639][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2449.802639][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2449.802639][   T73]      ___sys_sendmsg+0xee/0x170
[ 2449.802639][   T73]      __sys_sendmsg+0xcd/0x170
[ 2449.802639][   T73]      do_syscall_64+0xc6/0x1e0
[ 2449.802639][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2449.802639][   T73] 
[ 2459.839768][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2459.840216][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2459.840216][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2459.840216][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2459.840216][   T73]      fib6_nh_init+0xa22/0x1580
[ 2459.840216][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2459.840216][   T73]      ip6_route_add+0x1c/0x140
[ 2459.840216][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2459.840216][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2459.840216][   T73]      netlink_rcv_skb+0x130/0x360
[ 2459.840216][   T73]      netlink_unicast+0x449/0x710
[ 2459.840216][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2459.840216][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2459.840216][   T73]      ___sys_sendmsg+0xee/0x170
[ 2459.840216][   T73]      __sys_sendmsg+0xcd/0x170
[ 2459.840216][   T73]      do_syscall_64+0xc6/0x1e0
[ 2459.840216][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2459.840216][   T73] 
[ 2459.842287][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2459.842287][   T73]      dst_init+0x84/0x4a0
[ 2459.842287][   T73]      dst_alloc+0x97/0x150
[ 2459.842287][   T73]      ip6_dst_alloc+0x23/0x90
[ 2459.842287][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2459.842287][   T73]      ip6_pol_route+0x56f/0x840
[ 2459.842287][   T73]      fib6_rule_lookup+0x456/0x630
[ 2459.842287][   T73]      ip6_route_input+0x59c/0xa50
[ 2459.842287][   T73]      ipv6_rcv+0x397/0x810
[ 2459.842287][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2459.842287][   T73]      process_backlog+0x101/0x620
[ 2459.842287][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2459.842287][   T73]      net_rx_action+0x495/0xbe0
[ 2459.842287][   T73]      __do_softirq+0x1b5/0x7f6
[ 2459.842287][   T73] 
[ 2459.844004][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2459.844004][   T73]      netdev_get_by_index+0x5e/0x80
[ 2459.844004][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2459.844004][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2459.844004][   T73]      ip6_route_add+0x1c/0x140
[ 2459.844004][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2459.844004][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2459.844004][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2459.844004][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2459.844004][   T73]      netlink_rcv_skb+0x130/0x360
[ 2459.844004][   T73]      netlink_unicast+0x449/0x710
[ 2459.844004][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2459.844004][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2459.844004][   T73]      ___sys_sendmsg+0xee/0x170
[ 2459.844004][   T73]      __sys_sendmsg+0xcd/0x170
[ 2459.844004][   T73]      do_syscall_64+0xc6/0x1e0
[ 2459.844004][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2459.844004][   T73] 
[ 2459.846089][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2459.846089][   T73]      netdev_get_by_index+0x5e/0x80
[ 2459.846089][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2459.846089][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2459.846089][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2459.846089][   T73]      ipv6_add_addr+0x411/0x2000
[ 2459.846089][   T73]      inet6_addr_add+0x30e/0xa40
[ 2459.846089][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2459.846089][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2459.846089][   T73]      netlink_rcv_skb+0x130/0x360
[ 2459.846089][   T73]      netlink_unicast+0x449/0x710
[ 2459.846089][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2459.846089][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2459.846089][   T73]      ___sys_sendmsg+0xee/0x170
[ 2459.846089][   T73]      __sys_sendmsg+0xcd/0x170
[ 2459.846089][   T73]      do_syscall_64+0xc6/0x1e0
[ 2459.846089][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2459.846089][   T73] 
[ 2459.848212][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2459.848212][   T73]      netdev_get_by_index+0x5e/0x80
[ 2459.848212][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2459.848212][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2459.848212][   T73]      ip6_route_add+0x1c/0x140
[ 2459.848212][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2459.848212][   T73]      addrconf_add_dev+0xe2/0x170
[ 2459.848212][   T73]      inet6_addr_add+0x12f/0xa40
[ 2459.848212][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2459.848212][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2459.848212][   T73]      netlink_rcv_skb+0x130/0x360
[ 2459.848212][   T73]      netlink_unicast+0x449/0x710
[ 2459.848212][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2459.848212][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2459.848212][   T73]      ___sys_sendmsg+0xee/0x170
[ 2459.848212][   T73]      __sys_sendmsg+0xcd/0x170
[ 2459.848212][   T73]      do_syscall_64+0xc6/0x1e0
[ 2459.848212][   T73] 
[ 2459.850313][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2459.850313][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2459.850313][   T73]      ipv6_find_idev+0x102/0x170
[ 2459.850313][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2459.850313][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2459.850313][   T73]      netlink_rcv_skb+0x130/0x360
[ 2459.850313][   T73]      netlink_unicast+0x449/0x710
[ 2459.850313][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2459.850313][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2459.850313][   T73]      ___sys_sendmsg+0xee/0x170
[ 2459.850313][   T73]      __sys_sendmsg+0xcd/0x170
[ 2459.850313][   T73]      do_syscall_64+0xc6/0x1e0
[ 2459.850313][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2459.850313][   T73] 
[ 2459.851944][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2459.851944][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2459.851944][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2459.851944][   T73]      ipv6_find_idev+0x102/0x170
[ 2459.851944][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2459.851944][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2459.851944][   T73]      netlink_rcv_skb+0x130/0x360
[ 2459.851944][   T73]      netlink_unicast+0x449/0x710
[ 2459.851944][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2459.851944][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2459.851944][   T73]      ___sys_sendmsg+0xee/0x170
[ 2459.851944][   T73]      __sys_sendmsg+0xcd/0x170
[ 2459.851944][   T73]      do_syscall_64+0xc6/0x1e0
[ 2459.851944][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2459.851944][   T73] 
[ 2459.853741][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2459.854064][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2459.854064][   T73]      netdev_get_by_index+0x5e/0x80
[ 2459.854064][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2459.854064][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2459.854064][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2459.854064][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2459.854064][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2459.854064][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2459.854064][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2459.854064][   T73]      addrconf_dad_begin+0x310/0x670
[ 2459.854064][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2459.854064][   T73]      process_one_work+0x84d/0x18a0
[ 2459.854064][   T73]      worker_thread+0x587/0xd30
[ 2459.854064][   T73]      kthread+0x28a/0x350
[ 2459.854064][   T73]      ret_from_fork+0x31/0x70
[ 2459.854064][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2459.854064][   T73] 
[ 2459.856142][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2459.856142][   T73]      netdev_get_by_index+0x5e/0x80
[ 2459.856142][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2459.856142][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2459.856142][   T73]      ip6_route_add+0x1c/0x140
[ 2459.856142][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2459.856142][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2459.856142][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2459.856142][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2459.856142][   T73]      netlink_rcv_skb+0x130/0x360
[ 2459.856142][   T73]      netlink_unicast+0x449/0x710
[ 2459.856142][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2459.856142][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2459.856142][   T73]      ___sys_sendmsg+0xee/0x170
[ 2459.856142][   T73]      __sys_sendmsg+0xcd/0x170
[ 2459.856142][   T73]      do_syscall_64+0xc6/0x1e0
[ 2459.856142][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2459.856142][   T73] 
[ 2459.858241][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2459.858241][   T73]      netdev_get_by_index+0x5e/0x80
[ 2459.858241][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2459.858241][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2459.858241][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2459.858241][   T73]      ipv6_add_addr+0x411/0x2000
[ 2459.858241][   T73]      inet6_addr_add+0x30e/0xa40
[ 2459.858241][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2459.858241][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2459.858241][   T73]      netlink_rcv_skb+0x130/0x360
[ 2459.858241][   T73]      netlink_unicast+0x449/0x710
[ 2459.858241][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2459.858241][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2459.858241][   T73]      ___sys_sendmsg+0xee/0x170
[ 2459.858241][   T73]      __sys_sendmsg+0xcd/0x170
[ 2459.858241][   T73]      do_syscall_64+0xc6/0x1e0
[ 2459.858241][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2459.858241][   T73] 
[ 2459.860273][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2459.860273][   T73]      netdev_get_by_index+0x5e/0x80
[ 2459.860273][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2459.860273][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2459.860273][   T73]      ip6_route_add+0x1c/0x140
[ 2459.860273][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2459.860273][   T73]      addrconf_add_dev+0xe2/0x170
[ 2459.860273][   T73]      inet6_addr_add+0x12f/0xa40
[ 2459.860273][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2459.860273][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2459.860273][   T73]      netlink_rcv_skb+0x130/0x360
[ 2459.860273][   T73]      netlink_unicast+0x449/0x710
[ 2459.860273][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2459.860273][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2459.860273][   T73]      ___sys_sendmsg+0xee/0x170
[ 2459.860273][   T73]      __sys_sendmsg+0xcd/0x170
[ 2459.860273][   T73]      do_syscall_64+0xc6/0x1e0
[ 2459.860273][   T73] 
[ 2459.862269][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2459.862269][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2459.862269][   T73]      ipv6_find_idev+0x102/0x170
[ 2459.862269][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2459.862269][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2459.862269][   T73]      netlink_rcv_skb+0x130/0x360
[ 2459.862269][   T73]      netlink_unicast+0x449/0x710
[ 2459.862269][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2459.862269][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2459.862269][   T73]      ___sys_sendmsg+0xee/0x170
[ 2459.862269][   T73]      __sys_sendmsg+0xcd/0x170
[ 2459.862269][   T73]      do_syscall_64+0xc6/0x1e0
[ 2459.862269][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2459.862269][   T73] 
[ 2459.863836][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2459.863836][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2459.863836][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2459.863836][   T73]      ipv6_find_idev+0x102/0x170
[ 2459.863836][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2459.863836][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2459.863836][   T73]      netlink_rcv_skb+0x130/0x360
[ 2459.863836][   T73]      netlink_unicast+0x449/0x710
[ 2459.863836][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2459.863836][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2459.863836][   T73]      ___sys_sendmsg+0xee/0x170
[ 2459.863836][   T73]      __sys_sendmsg+0xcd/0x170
[ 2459.863836][   T73]      do_syscall_64+0xc6/0x1e0
[ 2459.863836][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2459.863836][   T73] 
[ 2459.865617][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2459.865925][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2459.865925][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2459.865925][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2459.865925][   T73]      fib6_nh_init+0xa22/0x1580
[ 2459.865925][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2459.865925][   T73]      ip6_route_add+0x1c/0x140
[ 2459.865925][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2459.865925][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2459.865925][   T73]      netlink_rcv_skb+0x130/0x360
[ 2459.865925][   T73]      netlink_unicast+0x449/0x710
[ 2459.865925][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2459.865925][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2459.865925][   T73]      ___sys_sendmsg+0xee/0x170
[ 2459.865925][   T73]      __sys_sendmsg+0xcd/0x170
[ 2459.865925][   T73]      do_syscall_64+0xc6/0x1e0
[ 2459.865925][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2459.865925][   T73] 
[ 2459.868095][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2459.868095][   T73]      dst_init+0x84/0x4a0
[ 2459.868095][   T73]      dst_alloc+0x97/0x150
[ 2459.868095][   T73]      ip6_dst_alloc+0x23/0x90
[ 2459.868095][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2459.868095][   T73]      ip6_pol_route+0x56f/0x840
[ 2459.868095][   T73]      fib6_rule_lookup+0x456/0x630
[ 2459.868095][   T73]      ip6_route_input+0x59c/0xa50
[ 2459.868095][   T73]      ipv6_rcv+0x397/0x810
[ 2459.868095][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2459.868095][   T73]      process_backlog+0x101/0x620
[ 2459.868095][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2459.868095][   T73]      net_rx_action+0x495/0xbe0
[ 2459.868095][   T73]      __do_softirq+0x1b5/0x7f6
[ 2459.868095][   T73] 
[ 2459.870032][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2459.870032][   T73]      netdev_get_by_index+0x5e/0x80
[ 2459.870032][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2459.870032][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2459.870032][   T73]      ip6_route_add+0x1c/0x140
[ 2459.870032][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2459.870032][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2459.870032][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2459.870032][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2459.870032][   T73]      netlink_rcv_skb+0x130/0x360
[ 2459.870032][   T73]      netlink_unicast+0x449/0x710
[ 2459.870032][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2459.870032][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2459.870032][   T73]      ___sys_sendmsg+0xee/0x170
[ 2459.870032][   T73]      __sys_sendmsg+0xcd/0x170
[ 2459.870032][   T73]      do_syscall_64+0xc6/0x1e0
[ 2459.870032][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2459.870032][   T73] 
[ 2459.872436][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2459.872436][   T73]      netdev_get_by_index+0x5e/0x80
[ 2459.872436][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2459.872436][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2459.872436][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2459.872436][   T73]      ipv6_add_addr+0x411/0x2000
[ 2459.872436][   T73]      inet6_addr_add+0x30e/0xa40
[ 2459.872436][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2459.872436][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2459.872436][   T73]      netlink_rcv_skb+0x130/0x360
[ 2459.872436][   T73]      netlink_unicast+0x449/0x710
[ 2459.872436][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2459.872436][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2459.872436][   T73]      ___sys_sendmsg+0xee/0x170
[ 2459.872436][   T73]      __sys_sendmsg+0xcd/0x170
[ 2459.872436][   T73]      do_syscall_64+0xc6/0x1e0
[ 2459.872436][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2459.872436][   T73] 
[ 2459.875894][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2459.875894][   T73]      netdev_get_by_index+0x5e/0x80
[ 2459.875894][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2459.875894][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2459.875894][   T73]      ip6_route_add+0x1c/0x140
[ 2459.875894][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2459.875894][   T73]      addrconf_add_dev+0xe2/0x170
[ 2459.875894][   T73]      inet6_addr_add+0x12f/0xa40
[ 2459.875894][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2459.875894][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2459.875894][   T73]      netlink_rcv_skb+0x130/0x360
[ 2459.875894][   T73]      netlink_unicast+0x449/0x710
[ 2459.875894][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2459.875894][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2459.875894][   T73]      ___sys_sendmsg+0xee/0x170
[ 2459.875894][   T73]      __sys_sendmsg+0xcd/0x170
[ 2459.875894][   T73]      do_syscall_64+0xc6/0x1e0
[ 2459.875894][   T73] 
[ 2459.879302][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2459.879302][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2459.879302][   T73]      ipv6_find_idev+0x102/0x170
[ 2459.879302][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2459.879302][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2459.879302][   T73]      netlink_rcv_skb+0x130/0x360
[ 2459.879302][   T73]      netlink_unicast+0x449/0x710
[ 2459.879302][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2459.879302][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2459.879302][   T73]      ___sys_sendmsg+0xee/0x170
[ 2459.879302][   T73]      __sys_sendmsg+0xcd/0x170
[ 2459.879302][   T73]      do_syscall_64+0xc6/0x1e0
[ 2459.879302][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2459.879302][   T73] 
[ 2459.882074][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2459.882074][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2459.882074][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2459.882074][   T73]      ipv6_find_idev+0x102/0x170
[ 2459.882074][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2459.882074][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2459.882074][   T73]      netlink_rcv_skb+0x130/0x360
[ 2459.882074][   T73]      netlink_unicast+0x449/0x710
[ 2459.882074][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2459.882074][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2459.882074][   T73]      ___sys_sendmsg+0xee/0x170
[ 2459.882074][   T73]      __sys_sendmsg+0xcd/0x170
[ 2459.882074][   T73]      do_syscall_64+0xc6/0x1e0
[ 2459.882074][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2459.882074][   T73] 
[ 2459.885232][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2459.885639][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2459.885639][   T73]      netdev_get_by_index+0x5e/0x80
[ 2459.885639][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2459.885639][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2459.885639][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2459.885639][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2459.885639][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2459.885639][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2459.885639][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2459.885639][   T73]      addrconf_dad_begin+0x310/0x670
[ 2459.885639][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2459.885639][   T73]      process_one_work+0x84d/0x18a0
[ 2459.885639][   T73]      worker_thread+0x587/0xd30
[ 2459.885639][   T73]      kthread+0x28a/0x350
[ 2459.885639][   T73]      ret_from_fork+0x31/0x70
[ 2459.885639][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2459.885639][   T73] 
[ 2459.888880][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2459.888880][   T73]      netdev_get_by_index+0x5e/0x80
[ 2459.888880][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2459.888880][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2459.888880][   T73]      ip6_route_add+0x1c/0x140
[ 2459.888880][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2459.888880][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2459.888880][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2459.888880][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2459.888880][   T73]      netlink_rcv_skb+0x130/0x360
[ 2459.888880][   T73]      netlink_unicast+0x449/0x710
[ 2459.888880][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2459.888880][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2459.888880][   T73]      ___sys_sendmsg+0xee/0x170
[ 2459.888880][   T73]      __sys_sendmsg+0xcd/0x170
[ 2459.888880][   T73]      do_syscall_64+0xc6/0x1e0
[ 2459.888880][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2459.888880][   T73] 
[ 2459.892323][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2459.892323][   T73]      netdev_get_by_index+0x5e/0x80
[ 2459.892323][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2459.892323][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2459.892323][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2459.892323][   T73]      ipv6_add_addr+0x411/0x2000
[ 2459.892323][   T73]      inet6_addr_add+0x30e/0xa40
[ 2459.892323][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2459.892323][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2459.892323][   T73]      netlink_rcv_skb+0x130/0x360
[ 2459.892323][   T73]      netlink_unicast+0x449/0x710
[ 2459.892323][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2459.892323][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2459.892323][   T73]      ___sys_sendmsg+0xee/0x170
[ 2459.892323][   T73]      __sys_sendmsg+0xcd/0x170
[ 2459.892323][   T73]      do_syscall_64+0xc6/0x1e0
[ 2459.892323][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2459.892323][   T73] 
[ 2459.895848][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2459.895848][   T73]      netdev_get_by_index+0x5e/0x80
[ 2459.895848][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2459.895848][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2459.895848][   T73]      ip6_route_add+0x1c/0x140
[ 2459.895848][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2459.895848][   T73]      addrconf_add_dev+0xe2/0x170
[ 2459.895848][   T73]      inet6_addr_add+0x12f/0xa40
[ 2459.895848][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2459.895848][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2459.895848][   T73]      netlink_rcv_skb+0x130/0x360
[ 2459.895848][   T73]      netlink_unicast+0x449/0x710
[ 2459.895848][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2459.895848][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2459.895848][   T73]      ___sys_sendmsg+0xee/0x170
[ 2459.895848][   T73]      __sys_sendmsg+0xcd/0x170
[ 2459.895848][   T73]      do_syscall_64+0xc6/0x1e0
[ 2459.895848][   T73] 
[ 2459.899504][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2459.899504][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2459.899504][   T73]      ipv6_find_idev+0x102/0x170
[ 2459.899504][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2459.899504][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2459.899504][   T73]      netlink_rcv_skb+0x130/0x360
[ 2459.899504][   T73]      netlink_unicast+0x449/0x710
[ 2459.899504][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2459.899504][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2459.899504][   T73]      ___sys_sendmsg+0xee/0x170
[ 2459.899504][   T73]      __sys_sendmsg+0xcd/0x170
[ 2459.899504][   T73]      do_syscall_64+0xc6/0x1e0
[ 2459.899504][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2459.899504][   T73] 
[ 2459.902242][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2459.902242][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2459.902242][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2459.902242][   T73]      ipv6_find_idev+0x102/0x170
[ 2459.902242][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2459.902242][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2459.902242][   T73]      netlink_rcv_skb+0x130/0x360
[ 2459.902242][   T73]      netlink_unicast+0x449/0x710
[ 2459.902242][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2459.902242][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2459.902242][   T73]      ___sys_sendmsg+0xee/0x170
[ 2459.902242][   T73]      __sys_sendmsg+0xcd/0x170
[ 2459.902242][   T73]      do_syscall_64+0xc6/0x1e0
[ 2459.902242][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2459.902242][   T73] 
[ 2470.143747][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2470.144269][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2470.144269][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2470.144269][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2470.144269][   T73]      fib6_nh_init+0xa22/0x1580
[ 2470.144269][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2470.144269][   T73]      ip6_route_add+0x1c/0x140
[ 2470.144269][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2470.144269][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2470.144269][   T73]      netlink_rcv_skb+0x130/0x360
[ 2470.144269][   T73]      netlink_unicast+0x449/0x710
[ 2470.144269][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2470.144269][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2470.144269][   T73]      ___sys_sendmsg+0xee/0x170
[ 2470.144269][   T73]      __sys_sendmsg+0xcd/0x170
[ 2470.144269][   T73]      do_syscall_64+0xc6/0x1e0
[ 2470.144269][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2470.144269][   T73] 
[ 2470.146190][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2470.146190][   T73]      dst_init+0x84/0x4a0
[ 2470.146190][   T73]      dst_alloc+0x97/0x150
[ 2470.146190][   T73]      ip6_dst_alloc+0x23/0x90
[ 2470.146190][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2470.146190][   T73]      ip6_pol_route+0x56f/0x840
[ 2470.146190][   T73]      fib6_rule_lookup+0x456/0x630
[ 2470.146190][   T73]      ip6_route_input+0x59c/0xa50
[ 2470.146190][   T73]      ipv6_rcv+0x397/0x810
[ 2470.146190][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2470.146190][   T73]      process_backlog+0x101/0x620
[ 2470.146190][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2470.146190][   T73]      net_rx_action+0x495/0xbe0
[ 2470.146190][   T73]      __do_softirq+0x1b5/0x7f6
[ 2470.146190][   T73] 
[ 2470.147845][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2470.147845][   T73]      netdev_get_by_index+0x5e/0x80
[ 2470.147845][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2470.147845][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2470.147845][   T73]      ip6_route_add+0x1c/0x140
[ 2470.147845][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2470.147845][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2470.147845][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2470.147845][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2470.147845][   T73]      netlink_rcv_skb+0x130/0x360
[ 2470.147845][   T73]      netlink_unicast+0x449/0x710
[ 2470.147845][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2470.147845][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2470.147845][   T73]      ___sys_sendmsg+0xee/0x170
[ 2470.147845][   T73]      __sys_sendmsg+0xcd/0x170
[ 2470.147845][   T73]      do_syscall_64+0xc6/0x1e0
[ 2470.147845][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2470.147845][   T73] 
[ 2470.149866][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2470.149866][   T73]      netdev_get_by_index+0x5e/0x80
[ 2470.149866][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2470.149866][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2470.149866][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2470.149866][   T73]      ipv6_add_addr+0x411/0x2000
[ 2470.149866][   T73]      inet6_addr_add+0x30e/0xa40
[ 2470.149866][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2470.149866][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2470.149866][   T73]      netlink_rcv_skb+0x130/0x360
[ 2470.149866][   T73]      netlink_unicast+0x449/0x710
[ 2470.149866][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2470.149866][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2470.149866][   T73]      ___sys_sendmsg+0xee/0x170
[ 2470.149866][   T73]      __sys_sendmsg+0xcd/0x170
[ 2470.149866][   T73]      do_syscall_64+0xc6/0x1e0
[ 2470.149866][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2470.149866][   T73] 
[ 2470.151881][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2470.151881][   T73]      netdev_get_by_index+0x5e/0x80
[ 2470.151881][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2470.151881][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2470.151881][   T73]      ip6_route_add+0x1c/0x140
[ 2470.151881][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2470.151881][   T73]      addrconf_add_dev+0xe2/0x170
[ 2470.151881][   T73]      inet6_addr_add+0x12f/0xa40
[ 2470.151881][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2470.151881][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2470.151881][   T73]      netlink_rcv_skb+0x130/0x360
[ 2470.151881][   T73]      netlink_unicast+0x449/0x710
[ 2470.151881][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2470.151881][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2470.151881][   T73]      ___sys_sendmsg+0xee/0x170
[ 2470.151881][   T73]      __sys_sendmsg+0xcd/0x170
[ 2470.151881][   T73]      do_syscall_64+0xc6/0x1e0
[ 2470.151881][   T73] 
[ 2470.153877][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2470.153877][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2470.153877][   T73]      ipv6_find_idev+0x102/0x170
[ 2470.153877][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2470.153877][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2470.153877][   T73]      netlink_rcv_skb+0x130/0x360
[ 2470.153877][   T73]      netlink_unicast+0x449/0x710
[ 2470.153877][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2470.153877][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2470.153877][   T73]      ___sys_sendmsg+0xee/0x170
[ 2470.153877][   T73]      __sys_sendmsg+0xcd/0x170
[ 2470.153877][   T73]      do_syscall_64+0xc6/0x1e0
[ 2470.153877][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2470.153877][   T73] 
[ 2470.155433][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2470.155433][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2470.155433][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2470.155433][   T73]      ipv6_find_idev+0x102/0x170
[ 2470.155433][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2470.155433][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2470.155433][   T73]      netlink_rcv_skb+0x130/0x360
[ 2470.155433][   T73]      netlink_unicast+0x449/0x710
[ 2470.155433][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2470.155433][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2470.155433][   T73]      ___sys_sendmsg+0xee/0x170
[ 2470.155433][   T73]      __sys_sendmsg+0xcd/0x170
[ 2470.155433][   T73]      do_syscall_64+0xc6/0x1e0
[ 2470.155433][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2470.155433][   T73] 
[ 2470.157165][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2470.157474][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2470.157474][   T73]      netdev_get_by_index+0x5e/0x80
[ 2470.157474][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2470.157474][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2470.157474][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2470.157474][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2470.157474][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2470.157474][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2470.157474][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2470.157474][   T73]      addrconf_dad_begin+0x310/0x670
[ 2470.157474][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2470.157474][   T73]      process_one_work+0x84d/0x18a0
[ 2470.157474][   T73]      worker_thread+0x587/0xd30
[ 2470.157474][   T73]      kthread+0x28a/0x350
[ 2470.157474][   T73]      ret_from_fork+0x31/0x70
[ 2470.157474][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2470.157474][   T73] 
[ 2470.159424][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2470.159424][   T73]      netdev_get_by_index+0x5e/0x80
[ 2470.159424][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2470.159424][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2470.159424][   T73]      ip6_route_add+0x1c/0x140
[ 2470.159424][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2470.159424][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2470.159424][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2470.159424][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2470.159424][   T73]      netlink_rcv_skb+0x130/0x360
[ 2470.159424][   T73]      netlink_unicast+0x449/0x710
[ 2470.159424][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2470.159424][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2470.159424][   T73]      ___sys_sendmsg+0xee/0x170
[ 2470.159424][   T73]      __sys_sendmsg+0xcd/0x170
[ 2470.159424][   T73]      do_syscall_64+0xc6/0x1e0
[ 2470.159424][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2470.159424][   T73] 
[ 2470.161484][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2470.161484][   T73]      netdev_get_by_index+0x5e/0x80
[ 2470.161484][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2470.161484][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2470.161484][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2470.161484][   T73]      ipv6_add_addr+0x411/0x2000
[ 2470.161484][   T73]      inet6_addr_add+0x30e/0xa40
[ 2470.161484][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2470.161484][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2470.161484][   T73]      netlink_rcv_skb+0x130/0x360
[ 2470.161484][   T73]      netlink_unicast+0x449/0x710
[ 2470.161484][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2470.161484][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2470.161484][   T73]      ___sys_sendmsg+0xee/0x170
[ 2470.161484][   T73]      __sys_sendmsg+0xcd/0x170
[ 2470.161484][   T73]      do_syscall_64+0xc6/0x1e0
[ 2470.161484][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2470.161484][   T73] 
[ 2470.163500][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2470.163500][   T73]      netdev_get_by_index+0x5e/0x80
[ 2470.163500][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2470.163500][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2470.163500][   T73]      ip6_route_add+0x1c/0x140
[ 2470.163500][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2470.163500][   T73]      addrconf_add_dev+0xe2/0x170
[ 2470.163500][   T73]      inet6_addr_add+0x12f/0xa40
[ 2470.163500][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2470.163500][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2470.163500][   T73]      netlink_rcv_skb+0x130/0x360
[ 2470.163500][   T73]      netlink_unicast+0x449/0x710
[ 2470.163500][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2470.163500][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2470.163500][   T73]      ___sys_sendmsg+0xee/0x170
[ 2470.163500][   T73]      __sys_sendmsg+0xcd/0x170
[ 2470.163500][   T73]      do_syscall_64+0xc6/0x1e0
[ 2470.163500][   T73] 
[ 2470.165475][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2470.165475][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2470.165475][   T73]      ipv6_find_idev+0x102/0x170
[ 2470.165475][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2470.165475][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2470.165475][   T73]      netlink_rcv_skb+0x130/0x360
[ 2470.165475][   T73]      netlink_unicast+0x449/0x710
[ 2470.165475][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2470.165475][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2470.165475][   T73]      ___sys_sendmsg+0xee/0x170
[ 2470.165475][   T73]      __sys_sendmsg+0xcd/0x170
[ 2470.165475][   T73]      do_syscall_64+0xc6/0x1e0
[ 2470.165475][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2470.165475][   T73] 
[ 2470.167023][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2470.167023][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2470.167023][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2470.167023][   T73]      ipv6_find_idev+0x102/0x170
[ 2470.167023][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2470.167023][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2470.167023][   T73]      netlink_rcv_skb+0x130/0x360
[ 2470.167023][   T73]      netlink_unicast+0x449/0x710
[ 2470.167023][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2470.167023][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2470.167023][   T73]      ___sys_sendmsg+0xee/0x170
[ 2470.167023][   T73]      __sys_sendmsg+0xcd/0x170
[ 2470.167023][   T73]      do_syscall_64+0xc6/0x1e0
[ 2470.167023][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2470.167023][   T73] 
[ 2470.168734][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2470.169094][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2470.169094][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2470.169094][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2470.169094][   T73]      fib6_nh_init+0xa22/0x1580
[ 2470.169094][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2470.169094][   T73]      ip6_route_add+0x1c/0x140
[ 2470.169094][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2470.169094][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2470.169094][   T73]      netlink_rcv_skb+0x130/0x360
[ 2470.169094][   T73]      netlink_unicast+0x449/0x710
[ 2470.169094][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2470.169094][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2470.169094][   T73]      ___sys_sendmsg+0xee/0x170
[ 2470.169094][   T73]      __sys_sendmsg+0xcd/0x170
[ 2470.169094][   T73]      do_syscall_64+0xc6/0x1e0
[ 2470.169094][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2470.169094][   T73] 
[ 2470.171179][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2470.171179][   T73]      dst_init+0x84/0x4a0
[ 2470.171179][   T73]      dst_alloc+0x97/0x150
[ 2470.171179][   T73]      ip6_dst_alloc+0x23/0x90
[ 2470.171179][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2470.171179][   T73]      ip6_pol_route+0x56f/0x840
[ 2470.171179][   T73]      fib6_rule_lookup+0x456/0x630
[ 2470.171179][   T73]      ip6_route_input+0x59c/0xa50
[ 2470.171179][   T73]      ipv6_rcv+0x397/0x810
[ 2470.171179][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2470.171179][   T73]      process_backlog+0x101/0x620
[ 2470.171179][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2470.171179][   T73]      net_rx_action+0x495/0xbe0
[ 2470.171179][   T73]      __do_softirq+0x1b5/0x7f6
[ 2470.171179][   T73] 
[ 2470.173605][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2470.173605][   T73]      netdev_get_by_index+0x5e/0x80
[ 2470.173605][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2470.173605][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2470.173605][   T73]      ip6_route_add+0x1c/0x140
[ 2470.173605][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2470.173605][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2470.173605][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2470.173605][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2470.173605][   T73]      netlink_rcv_skb+0x130/0x360
[ 2470.173605][   T73]      netlink_unicast+0x449/0x710
[ 2470.173605][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2470.173605][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2470.173605][   T73]      ___sys_sendmsg+0xee/0x170
[ 2470.173605][   T73]      __sys_sendmsg+0xcd/0x170
[ 2470.173605][   T73]      do_syscall_64+0xc6/0x1e0
[ 2470.173605][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2470.173605][   T73] 
[ 2470.176129][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2470.176129][   T73]      netdev_get_by_index+0x5e/0x80
[ 2470.176129][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2470.176129][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2470.176129][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2470.176129][   T73]      ipv6_add_addr+0x411/0x2000
[ 2470.176129][   T73]      inet6_addr_add+0x30e/0xa40
[ 2470.176129][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2470.176129][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2470.176129][   T73]      netlink_rcv_skb+0x130/0x360
[ 2470.176129][   T73]      netlink_unicast+0x449/0x710
[ 2470.176129][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2470.176129][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2470.176129][   T73]      ___sys_sendmsg+0xee/0x170
[ 2470.176129][   T73]      __sys_sendmsg+0xcd/0x170
[ 2470.176129][   T73]      do_syscall_64+0xc6/0x1e0
[ 2470.176129][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2470.176129][   T73] 
[ 2470.179456][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2470.179456][   T73]      netdev_get_by_index+0x5e/0x80
[ 2470.179456][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2470.179456][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2470.179456][   T73]      ip6_route_add+0x1c/0x140
[ 2470.179456][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2470.179456][   T73]      addrconf_add_dev+0xe2/0x170
[ 2470.179456][   T73]      inet6_addr_add+0x12f/0xa40
[ 2470.179456][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2470.179456][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2470.179456][   T73]      netlink_rcv_skb+0x130/0x360
[ 2470.179456][   T73]      netlink_unicast+0x449/0x710
[ 2470.179456][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2470.179456][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2470.179456][   T73]      ___sys_sendmsg+0xee/0x170
[ 2470.179456][   T73]      __sys_sendmsg+0xcd/0x170
[ 2470.179456][   T73]      do_syscall_64+0xc6/0x1e0
[ 2470.179456][   T73] 
[ 2470.182789][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2470.182789][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2470.182789][   T73]      ipv6_find_idev+0x102/0x170
[ 2470.182789][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2470.182789][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2470.182789][   T73]      netlink_rcv_skb+0x130/0x360
[ 2470.182789][   T73]      netlink_unicast+0x449/0x710
[ 2470.182789][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2470.182789][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2470.182789][   T73]      ___sys_sendmsg+0xee/0x170
[ 2470.182789][   T73]      __sys_sendmsg+0xcd/0x170
[ 2470.182789][   T73]      do_syscall_64+0xc6/0x1e0
[ 2470.182789][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2470.182789][   T73] 
[ 2470.185466][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2470.185466][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2470.185466][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2470.185466][   T73]      ipv6_find_idev+0x102/0x170
[ 2470.185466][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2470.185466][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2470.185466][   T73]      netlink_rcv_skb+0x130/0x360
[ 2470.185466][   T73]      netlink_unicast+0x449/0x710
[ 2470.185466][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2470.185466][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2470.185466][   T73]      ___sys_sendmsg+0xee/0x170
[ 2470.185466][   T73]      __sys_sendmsg+0xcd/0x170
[ 2470.185466][   T73]      do_syscall_64+0xc6/0x1e0
[ 2470.185466][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2470.185466][   T73] 
[ 2470.188577][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2470.190397][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2470.190397][   T73]      netdev_get_by_index+0x5e/0x80
[ 2470.190397][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2470.190397][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2470.190397][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2470.190397][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2470.190397][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2470.190397][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2470.190397][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2470.190397][   T73]      addrconf_dad_begin+0x310/0x670
[ 2470.190397][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2470.190397][   T73]      process_one_work+0x84d/0x18a0
[ 2470.190397][   T73]      worker_thread+0x587/0xd30
[ 2470.190397][   T73]      kthread+0x28a/0x350
[ 2470.190397][   T73]      ret_from_fork+0x31/0x70
[ 2470.190397][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2470.190397][   T73] 
[ 2470.193413][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2470.193413][   T73]      netdev_get_by_index+0x5e/0x80
[ 2470.193413][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2470.193413][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2470.193413][   T73]      ip6_route_add+0x1c/0x140
[ 2470.193413][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2470.193413][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2470.193413][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2470.193413][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2470.193413][   T73]      netlink_rcv_skb+0x130/0x360
[ 2470.193413][   T73]      netlink_unicast+0x449/0x710
[ 2470.193413][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2470.193413][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2470.193413][   T73]      ___sys_sendmsg+0xee/0x170
[ 2470.193413][   T73]      __sys_sendmsg+0xcd/0x170
[ 2470.193413][   T73]      do_syscall_64+0xc6/0x1e0
[ 2470.193413][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2470.193413][   T73] 
[ 2470.196636][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2470.196636][   T73]      netdev_get_by_index+0x5e/0x80
[ 2470.196636][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2470.196636][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2470.196636][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2470.196636][   T73]      ipv6_add_addr+0x411/0x2000
[ 2470.196636][   T73]      inet6_addr_add+0x30e/0xa40
[ 2470.196636][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2470.196636][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2470.196636][   T73]      netlink_rcv_skb+0x130/0x360
[ 2470.196636][   T73]      netlink_unicast+0x449/0x710
[ 2470.196636][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2470.196636][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2470.196636][   T73]      ___sys_sendmsg+0xee/0x170
[ 2470.196636][   T73]      __sys_sendmsg+0xcd/0x170
[ 2470.196636][   T73]      do_syscall_64+0xc6/0x1e0
[ 2470.196636][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2470.196636][   T73] 
[ 2470.200056][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2470.200056][   T73]      netdev_get_by_index+0x5e/0x80
[ 2470.200056][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2470.200056][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2470.200056][   T73]      ip6_route_add+0x1c/0x140
[ 2470.200056][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2470.200056][   T73]      addrconf_add_dev+0xe2/0x170
[ 2470.200056][   T73]      inet6_addr_add+0x12f/0xa40
[ 2470.200056][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2470.200056][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2470.200056][   T73]      netlink_rcv_skb+0x130/0x360
[ 2470.200056][   T73]      netlink_unicast+0x449/0x710
[ 2470.200056][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2470.200056][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2470.200056][   T73]      ___sys_sendmsg+0xee/0x170
[ 2470.200056][   T73]      __sys_sendmsg+0xcd/0x170
[ 2470.200056][   T73]      do_syscall_64+0xc6/0x1e0
[ 2470.200056][   T73] 
[ 2470.203445][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2470.203445][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2470.203445][   T73]      ipv6_find_idev+0x102/0x170
[ 2470.203445][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2470.203445][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2470.203445][   T73]      netlink_rcv_skb+0x130/0x360
[ 2470.203445][   T73]      netlink_unicast+0x449/0x710
[ 2470.203445][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2470.203445][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2470.203445][   T73]      ___sys_sendmsg+0xee/0x170
[ 2470.203445][   T73]      __sys_sendmsg+0xcd/0x170
[ 2470.203445][   T73]      do_syscall_64+0xc6/0x1e0
[ 2470.203445][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2470.203445][   T73] 
[ 2470.206296][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2470.206296][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2470.206296][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2470.206296][   T73]      ipv6_find_idev+0x102/0x170
[ 2470.206296][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2470.206296][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2470.206296][   T73]      netlink_rcv_skb+0x130/0x360
[ 2470.206296][   T73]      netlink_unicast+0x449/0x710
[ 2470.206296][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2470.206296][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2470.206296][   T73]      ___sys_sendmsg+0xee/0x170
[ 2470.206296][   T73]      __sys_sendmsg+0xcd/0x170
[ 2470.206296][   T73]      do_syscall_64+0xc6/0x1e0
[ 2470.206296][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2470.206296][   T73] 
[ 2480.447715][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2480.448208][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2480.448208][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2480.448208][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2480.448208][   T73]      fib6_nh_init+0xa22/0x1580
[ 2480.448208][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2480.448208][   T73]      ip6_route_add+0x1c/0x140
[ 2480.448208][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2480.448208][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2480.448208][   T73]      netlink_rcv_skb+0x130/0x360
[ 2480.448208][   T73]      netlink_unicast+0x449/0x710
[ 2480.448208][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2480.448208][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2480.448208][   T73]      ___sys_sendmsg+0xee/0x170
[ 2480.448208][   T73]      __sys_sendmsg+0xcd/0x170
[ 2480.448208][   T73]      do_syscall_64+0xc6/0x1e0
[ 2480.448208][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2480.448208][   T73] 
[ 2480.450129][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2480.450129][   T73]      dst_init+0x84/0x4a0
[ 2480.450129][   T73]      dst_alloc+0x97/0x150
[ 2480.450129][   T73]      ip6_dst_alloc+0x23/0x90
[ 2480.450129][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2480.450129][   T73]      ip6_pol_route+0x56f/0x840
[ 2480.450129][   T73]      fib6_rule_lookup+0x456/0x630
[ 2480.450129][   T73]      ip6_route_input+0x59c/0xa50
[ 2480.450129][   T73]      ipv6_rcv+0x397/0x810
[ 2480.450129][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2480.450129][   T73]      process_backlog+0x101/0x620
[ 2480.450129][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2480.450129][   T73]      net_rx_action+0x495/0xbe0
[ 2480.450129][   T73]      __do_softirq+0x1b5/0x7f6
[ 2480.450129][   T73] 
[ 2480.451809][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2480.451809][   T73]      netdev_get_by_index+0x5e/0x80
[ 2480.451809][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2480.451809][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2480.451809][   T73]      ip6_route_add+0x1c/0x140
[ 2480.451809][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2480.451809][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2480.451809][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2480.451809][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2480.451809][   T73]      netlink_rcv_skb+0x130/0x360
[ 2480.451809][   T73]      netlink_unicast+0x449/0x710
[ 2480.451809][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2480.451809][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2480.451809][   T73]      ___sys_sendmsg+0xee/0x170
[ 2480.451809][   T73]      __sys_sendmsg+0xcd/0x170
[ 2480.451809][   T73]      do_syscall_64+0xc6/0x1e0
[ 2480.451809][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2480.451809][   T73] 
[ 2480.453944][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2480.453944][   T73]      netdev_get_by_index+0x5e/0x80
[ 2480.453944][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2480.453944][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2480.453944][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2480.453944][   T73]      ipv6_add_addr+0x411/0x2000
[ 2480.453944][   T73]      inet6_addr_add+0x30e/0xa40
[ 2480.453944][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2480.453944][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2480.453944][   T73]      netlink_rcv_skb+0x130/0x360
[ 2480.453944][   T73]      netlink_unicast+0x449/0x710
[ 2480.453944][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2480.453944][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2480.453944][   T73]      ___sys_sendmsg+0xee/0x170
[ 2480.453944][   T73]      __sys_sendmsg+0xcd/0x170
[ 2480.453944][   T73]      do_syscall_64+0xc6/0x1e0
[ 2480.453944][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2480.453944][   T73] 
[ 2480.456049][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2480.456049][   T73]      netdev_get_by_index+0x5e/0x80
[ 2480.456049][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2480.456049][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2480.456049][   T73]      ip6_route_add+0x1c/0x140
[ 2480.456049][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2480.456049][   T73]      addrconf_add_dev+0xe2/0x170
[ 2480.456049][   T73]      inet6_addr_add+0x12f/0xa40
[ 2480.456049][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2480.456049][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2480.456049][   T73]      netlink_rcv_skb+0x130/0x360
[ 2480.456049][   T73]      netlink_unicast+0x449/0x710
[ 2480.456049][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2480.456049][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2480.456049][   T73]      ___sys_sendmsg+0xee/0x170
[ 2480.456049][   T73]      __sys_sendmsg+0xcd/0x170
[ 2480.456049][   T73]      do_syscall_64+0xc6/0x1e0
[ 2480.456049][   T73] 
[ 2480.458128][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2480.458128][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2480.458128][   T73]      ipv6_find_idev+0x102/0x170
[ 2480.458128][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2480.458128][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2480.458128][   T73]      netlink_rcv_skb+0x130/0x360
[ 2480.458128][   T73]      netlink_unicast+0x449/0x710
[ 2480.458128][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2480.458128][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2480.458128][   T73]      ___sys_sendmsg+0xee/0x170
[ 2480.458128][   T73]      __sys_sendmsg+0xcd/0x170
[ 2480.458128][   T73]      do_syscall_64+0xc6/0x1e0
[ 2480.458128][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2480.458128][   T73] 
[ 2480.459762][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2480.459762][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2480.459762][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2480.459762][   T73]      ipv6_find_idev+0x102/0x170
[ 2480.459762][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2480.459762][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2480.459762][   T73]      netlink_rcv_skb+0x130/0x360
[ 2480.459762][   T73]      netlink_unicast+0x449/0x710
[ 2480.459762][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2480.459762][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2480.459762][   T73]      ___sys_sendmsg+0xee/0x170
[ 2480.459762][   T73]      __sys_sendmsg+0xcd/0x170
[ 2480.459762][   T73]      do_syscall_64+0xc6/0x1e0
[ 2480.459762][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2480.459762][   T73] 
[ 2480.461565][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2480.461879][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2480.461879][   T73]      netdev_get_by_index+0x5e/0x80
[ 2480.461879][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2480.461879][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2480.461879][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2480.461879][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2480.461879][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2480.461879][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2480.461879][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2480.461879][   T73]      addrconf_dad_begin+0x310/0x670
[ 2480.461879][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2480.461879][   T73]      process_one_work+0x84d/0x18a0
[ 2480.461879][   T73]      worker_thread+0x587/0xd30
[ 2480.461879][   T73]      kthread+0x28a/0x350
[ 2480.461879][   T73]      ret_from_fork+0x31/0x70
[ 2480.461879][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2480.461879][   T73] 
[ 2480.463930][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2480.463930][   T73]      netdev_get_by_index+0x5e/0x80
[ 2480.463930][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2480.463930][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2480.463930][   T73]      ip6_route_add+0x1c/0x140
[ 2480.463930][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2480.463930][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2480.463930][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2480.463930][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2480.463930][   T73]      netlink_rcv_skb+0x130/0x360
[ 2480.463930][   T73]      netlink_unicast+0x449/0x710
[ 2480.463930][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2480.463930][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2480.463930][   T73]      ___sys_sendmsg+0xee/0x170
[ 2480.463930][   T73]      __sys_sendmsg+0xcd/0x170
[ 2480.463930][   T73]      do_syscall_64+0xc6/0x1e0
[ 2480.463930][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2480.463930][   T73] 
[ 2480.466491][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2480.466491][   T73]      netdev_get_by_index+0x5e/0x80
[ 2480.466491][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2480.466491][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2480.466491][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2480.466491][   T73]      ipv6_add_addr+0x411/0x2000
[ 2480.466491][   T73]      inet6_addr_add+0x30e/0xa40
[ 2480.466491][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2480.466491][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2480.466491][   T73]      netlink_rcv_skb+0x130/0x360
[ 2480.466491][   T73]      netlink_unicast+0x449/0x710
[ 2480.466491][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2480.466491][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2480.466491][   T73]      ___sys_sendmsg+0xee/0x170
[ 2480.466491][   T73]      __sys_sendmsg+0xcd/0x170
[ 2480.466491][   T73]      do_syscall_64+0xc6/0x1e0
[ 2480.466491][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2480.466491][   T73] 
[ 2480.468638][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2480.468638][   T73]      netdev_get_by_index+0x5e/0x80
[ 2480.468638][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2480.468638][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2480.468638][   T73]      ip6_route_add+0x1c/0x140
[ 2480.468638][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2480.468638][   T73]      addrconf_add_dev+0xe2/0x170
[ 2480.468638][   T73]      inet6_addr_add+0x12f/0xa40
[ 2480.468638][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2480.468638][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2480.468638][   T73]      netlink_rcv_skb+0x130/0x360
[ 2480.468638][   T73]      netlink_unicast+0x449/0x710
[ 2480.468638][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2480.468638][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2480.468638][   T73]      ___sys_sendmsg+0xee/0x170
[ 2480.468638][   T73]      __sys_sendmsg+0xcd/0x170
[ 2480.468638][   T73]      do_syscall_64+0xc6/0x1e0
[ 2480.468638][   T73] 
[ 2480.470672][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2480.470672][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2480.470672][   T73]      ipv6_find_idev+0x102/0x170
[ 2480.470672][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2480.470672][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2480.470672][   T73]      netlink_rcv_skb+0x130/0x360
[ 2480.470672][   T73]      netlink_unicast+0x449/0x710
[ 2480.470672][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2480.470672][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2480.470672][   T73]      ___sys_sendmsg+0xee/0x170
[ 2480.470672][   T73]      __sys_sendmsg+0xcd/0x170
[ 2480.470672][   T73]      do_syscall_64+0xc6/0x1e0
[ 2480.470672][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2480.470672][   T73] 
[ 2480.472301][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2480.472301][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2480.472301][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2480.472301][   T73]      ipv6_find_idev+0x102/0x170
[ 2480.472301][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2480.472301][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2480.472301][   T73]      netlink_rcv_skb+0x130/0x360
[ 2480.472301][   T73]      netlink_unicast+0x449/0x710
[ 2480.472301][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2480.472301][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2480.472301][   T73]      ___sys_sendmsg+0xee/0x170
[ 2480.472301][   T73]      __sys_sendmsg+0xcd/0x170
[ 2480.472301][   T73]      do_syscall_64+0xc6/0x1e0
[ 2480.472301][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2480.472301][   T73] 
[ 2480.474067][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2480.474418][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2480.474418][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2480.474418][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2480.474418][   T73]      fib6_nh_init+0xa22/0x1580
[ 2480.474418][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2480.474418][   T73]      ip6_route_add+0x1c/0x140
[ 2480.474418][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2480.474418][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2480.474418][   T73]      netlink_rcv_skb+0x130/0x360
[ 2480.474418][   T73]      netlink_unicast+0x449/0x710
[ 2480.474418][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2480.474418][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2480.474418][   T73]      ___sys_sendmsg+0xee/0x170
[ 2480.474418][   T73]      __sys_sendmsg+0xcd/0x170
[ 2480.474418][   T73]      do_syscall_64+0xc6/0x1e0
[ 2480.474418][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2480.474418][   T73] 
[ 2480.476429][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2480.476429][   T73]      dst_init+0x84/0x4a0
[ 2480.476429][   T73]      dst_alloc+0x97/0x150
[ 2480.476429][   T73]      ip6_dst_alloc+0x23/0x90
[ 2480.476429][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2480.476429][   T73]      ip6_pol_route+0x56f/0x840
[ 2480.476429][   T73]      fib6_rule_lookup+0x456/0x630
[ 2480.476429][   T73]      ip6_route_input+0x59c/0xa50
[ 2480.476429][   T73]      ipv6_rcv+0x397/0x810
[ 2480.476429][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2480.476429][   T73]      process_backlog+0x101/0x620
[ 2480.476429][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2480.476429][   T73]      net_rx_action+0x495/0xbe0
[ 2480.476429][   T73]      __do_softirq+0x1b5/0x7f6
[ 2480.476429][   T73] 
[ 2480.478451][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2480.478451][   T73]      netdev_get_by_index+0x5e/0x80
[ 2480.478451][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2480.478451][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2480.478451][   T73]      ip6_route_add+0x1c/0x140
[ 2480.478451][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2480.478451][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2480.478451][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2480.478451][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2480.478451][   T73]      netlink_rcv_skb+0x130/0x360
[ 2480.478451][   T73]      netlink_unicast+0x449/0x710
[ 2480.478451][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2480.478451][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2480.478451][   T73]      ___sys_sendmsg+0xee/0x170
[ 2480.478451][   T73]      __sys_sendmsg+0xcd/0x170
[ 2480.478451][   T73]      do_syscall_64+0xc6/0x1e0
[ 2480.478451][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2480.478451][   T73] 
[ 2480.480832][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2480.480832][   T73]      netdev_get_by_index+0x5e/0x80
[ 2480.480832][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2480.480832][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2480.480832][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2480.480832][   T73]      ipv6_add_addr+0x411/0x2000
[ 2480.480832][   T73]      inet6_addr_add+0x30e/0xa40
[ 2480.480832][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2480.480832][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2480.480832][   T73]      netlink_rcv_skb+0x130/0x360
[ 2480.480832][   T73]      netlink_unicast+0x449/0x710
[ 2480.480832][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2480.480832][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2480.480832][   T73]      ___sys_sendmsg+0xee/0x170
[ 2480.480832][   T73]      __sys_sendmsg+0xcd/0x170
[ 2480.480832][   T73]      do_syscall_64+0xc6/0x1e0
[ 2480.480832][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2480.480832][   T73] 
[ 2480.483203][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2480.483203][   T73]      netdev_get_by_index+0x5e/0x80
[ 2480.483203][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2480.483203][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2480.483203][   T73]      ip6_route_add+0x1c/0x140
[ 2480.483203][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2480.483203][   T73]      addrconf_add_dev+0xe2/0x170
[ 2480.483203][   T73]      inet6_addr_add+0x12f/0xa40
[ 2480.483203][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2480.483203][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2480.483203][   T73]      netlink_rcv_skb+0x130/0x360
[ 2480.483203][   T73]      netlink_unicast+0x449/0x710
[ 2480.483203][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2480.483203][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2480.483203][   T73]      ___sys_sendmsg+0xee/0x170
[ 2480.483203][   T73]      __sys_sendmsg+0xcd/0x170
[ 2480.483203][   T73]      do_syscall_64+0xc6/0x1e0
[ 2480.483203][   T73] 
[ 2480.485503][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2480.485503][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2480.485503][   T73]      ipv6_find_idev+0x102/0x170
[ 2480.485503][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2480.485503][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2480.485503][   T73]      netlink_rcv_skb+0x130/0x360
[ 2480.485503][   T73]      netlink_unicast+0x449/0x710
[ 2480.485503][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2480.485503][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2480.485503][   T73]      ___sys_sendmsg+0xee/0x170
[ 2480.485503][   T73]      __sys_sendmsg+0xcd/0x170
[ 2480.485503][   T73]      do_syscall_64+0xc6/0x1e0
[ 2480.485503][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2480.485503][   T73] 
[ 2480.487397][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2480.487397][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2480.487397][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2480.487397][   T73]      ipv6_find_idev+0x102/0x170
[ 2480.487397][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2480.487397][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2480.487397][   T73]      netlink_rcv_skb+0x130/0x360
[ 2480.487397][   T73]      netlink_unicast+0x449/0x710
[ 2480.487397][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2480.487397][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2480.487397][   T73]      ___sys_sendmsg+0xee/0x170
[ 2480.487397][   T73]      __sys_sendmsg+0xcd/0x170
[ 2480.487397][   T73]      do_syscall_64+0xc6/0x1e0
[ 2480.487397][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2480.487397][   T73] 
[ 2480.489324][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2480.489656][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2480.489656][   T73]      netdev_get_by_index+0x5e/0x80
[ 2480.489656][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2480.489656][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2480.489656][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2480.489656][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2480.489656][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2480.489656][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2480.489656][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2480.489656][   T73]      addrconf_dad_begin+0x310/0x670
[ 2480.489656][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2480.489656][   T73]      process_one_work+0x84d/0x18a0
[ 2480.489656][   T73]      worker_thread+0x587/0xd30
[ 2480.489656][   T73]      kthread+0x28a/0x350
[ 2480.489656][   T73]      ret_from_fork+0x31/0x70
[ 2480.489656][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2480.489656][   T73] 
[ 2480.491915][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2480.491915][   T73]      netdev_get_by_index+0x5e/0x80
[ 2480.491915][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2480.491915][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2480.491915][   T73]      ip6_route_add+0x1c/0x140
[ 2480.491915][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2480.491915][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2480.491915][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2480.491915][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2480.491915][   T73]      netlink_rcv_skb+0x130/0x360
[ 2480.491915][   T73]      netlink_unicast+0x449/0x710
[ 2480.491915][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2480.491915][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2480.491915][   T73]      ___sys_sendmsg+0xee/0x170
[ 2480.491915][   T73]      __sys_sendmsg+0xcd/0x170
[ 2480.491915][   T73]      do_syscall_64+0xc6/0x1e0
[ 2480.491915][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2480.491915][   T73] 
[ 2480.494297][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2480.494297][   T73]      netdev_get_by_index+0x5e/0x80
[ 2480.494297][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2480.494297][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2480.494297][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2480.494297][   T73]      ipv6_add_addr+0x411/0x2000
[ 2480.494297][   T73]      inet6_addr_add+0x30e/0xa40
[ 2480.494297][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2480.494297][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2480.494297][   T73]      netlink_rcv_skb+0x130/0x360
[ 2480.494297][   T73]      netlink_unicast+0x449/0x710
[ 2480.494297][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2480.494297][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2480.494297][   T73]      ___sys_sendmsg+0xee/0x170
[ 2480.494297][   T73]      __sys_sendmsg+0xcd/0x170
[ 2480.494297][   T73]      do_syscall_64+0xc6/0x1e0
[ 2480.494297][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2480.494297][   T73] 
[ 2480.496540][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2480.496540][   T73]      netdev_get_by_index+0x5e/0x80
[ 2480.496540][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2480.496540][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2480.496540][   T73]      ip6_route_add+0x1c/0x140
[ 2480.496540][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2480.496540][   T73]      addrconf_add_dev+0xe2/0x170
[ 2480.496540][   T73]      inet6_addr_add+0x12f/0xa40
[ 2480.496540][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2480.496540][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2480.496540][   T73]      netlink_rcv_skb+0x130/0x360
[ 2480.496540][   T73]      netlink_unicast+0x449/0x710
[ 2480.496540][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2480.496540][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2480.496540][   T73]      ___sys_sendmsg+0xee/0x170
[ 2480.496540][   T73]      __sys_sendmsg+0xcd/0x170
[ 2480.496540][   T73]      do_syscall_64+0xc6/0x1e0
[ 2480.496540][   T73] 
[ 2480.498788][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2480.498788][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2480.498788][   T73]      ipv6_find_idev+0x102/0x170
[ 2480.498788][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2480.498788][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2480.498788][   T73]      netlink_rcv_skb+0x130/0x360
[ 2480.498788][   T73]      netlink_unicast+0x449/0x710
[ 2480.498788][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2480.498788][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2480.498788][   T73]      ___sys_sendmsg+0xee/0x170
[ 2480.498788][   T73]      __sys_sendmsg+0xcd/0x170
[ 2480.498788][   T73]      do_syscall_64+0xc6/0x1e0
[ 2480.498788][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2480.498788][   T73] 
[ 2480.500562][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2480.500562][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2480.500562][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2480.500562][   T73]      ipv6_find_idev+0x102/0x170
[ 2480.500562][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2480.500562][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2480.500562][   T73]      netlink_rcv_skb+0x130/0x360
[ 2480.500562][   T73]      netlink_unicast+0x449/0x710
[ 2480.500562][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2480.500562][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2480.500562][   T73]      ___sys_sendmsg+0xee/0x170
[ 2480.500562][   T73]      __sys_sendmsg+0xcd/0x170
[ 2480.500562][   T73]      do_syscall_64+0xc6/0x1e0
[ 2480.500562][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2480.500562][   T73] 
[ 2490.503774][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2490.504212][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2490.504212][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2490.504212][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2490.504212][   T73]      fib6_nh_init+0xa22/0x1580
[ 2490.504212][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2490.504212][   T73]      ip6_route_add+0x1c/0x140
[ 2490.504212][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2490.504212][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2490.504212][   T73]      netlink_rcv_skb+0x130/0x360
[ 2490.504212][   T73]      netlink_unicast+0x449/0x710
[ 2490.504212][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2490.504212][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2490.504212][   T73]      ___sys_sendmsg+0xee/0x170
[ 2490.504212][   T73]      __sys_sendmsg+0xcd/0x170
[ 2490.504212][   T73]      do_syscall_64+0xc6/0x1e0
[ 2490.504212][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2490.504212][   T73] 
[ 2490.506199][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2490.506199][   T73]      dst_init+0x84/0x4a0
[ 2490.506199][   T73]      dst_alloc+0x97/0x150
[ 2490.506199][   T73]      ip6_dst_alloc+0x23/0x90
[ 2490.506199][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2490.506199][   T73]      ip6_pol_route+0x56f/0x840
[ 2490.506199][   T73]      fib6_rule_lookup+0x456/0x630
[ 2490.506199][   T73]      ip6_route_input+0x59c/0xa50
[ 2490.506199][   T73]      ipv6_rcv+0x397/0x810
[ 2490.506199][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2490.506199][   T73]      process_backlog+0x101/0x620
[ 2490.506199][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2490.506199][   T73]      net_rx_action+0x495/0xbe0
[ 2490.506199][   T73]      __do_softirq+0x1b5/0x7f6
[ 2490.506199][   T73] 
[ 2490.507853][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2490.507853][   T73]      netdev_get_by_index+0x5e/0x80
[ 2490.507853][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2490.507853][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2490.507853][   T73]      ip6_route_add+0x1c/0x140
[ 2490.507853][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2490.507853][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2490.507853][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2490.507853][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2490.507853][   T73]      netlink_rcv_skb+0x130/0x360
[ 2490.507853][   T73]      netlink_unicast+0x449/0x710
[ 2490.507853][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2490.507853][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2490.507853][   T73]      ___sys_sendmsg+0xee/0x170
[ 2490.507853][   T73]      __sys_sendmsg+0xcd/0x170
[ 2490.507853][   T73]      do_syscall_64+0xc6/0x1e0
[ 2490.507853][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2490.507853][   T73] 
[ 2490.509844][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2490.509844][   T73]      netdev_get_by_index+0x5e/0x80
[ 2490.509844][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2490.509844][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2490.509844][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2490.509844][   T73]      ipv6_add_addr+0x411/0x2000
[ 2490.509844][   T73]      inet6_addr_add+0x30e/0xa40
[ 2490.509844][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2490.509844][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2490.509844][   T73]      netlink_rcv_skb+0x130/0x360
[ 2490.509844][   T73]      netlink_unicast+0x449/0x710
[ 2490.509844][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2490.509844][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2490.509844][   T73]      ___sys_sendmsg+0xee/0x170
[ 2490.509844][   T73]      __sys_sendmsg+0xcd/0x170
[ 2490.509844][   T73]      do_syscall_64+0xc6/0x1e0
[ 2490.509844][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2490.509844][   T73] 
[ 2490.511844][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2490.511844][   T73]      netdev_get_by_index+0x5e/0x80
[ 2490.511844][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2490.511844][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2490.511844][   T73]      ip6_route_add+0x1c/0x140
[ 2490.511844][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2490.511844][   T73]      addrconf_add_dev+0xe2/0x170
[ 2490.511844][   T73]      inet6_addr_add+0x12f/0xa40
[ 2490.511844][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2490.511844][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2490.511844][   T73]      netlink_rcv_skb+0x130/0x360
[ 2490.511844][   T73]      netlink_unicast+0x449/0x710
[ 2490.511844][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2490.511844][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2490.511844][   T73]      ___sys_sendmsg+0xee/0x170
[ 2490.511844][   T73]      __sys_sendmsg+0xcd/0x170
[ 2490.511844][   T73]      do_syscall_64+0xc6/0x1e0
[ 2490.511844][   T73] 
[ 2490.513813][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2490.513813][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2490.513813][   T73]      ipv6_find_idev+0x102/0x170
[ 2490.513813][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2490.513813][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2490.513813][   T73]      netlink_rcv_skb+0x130/0x360
[ 2490.513813][   T73]      netlink_unicast+0x449/0x710
[ 2490.513813][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2490.513813][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2490.513813][   T73]      ___sys_sendmsg+0xee/0x170
[ 2490.513813][   T73]      __sys_sendmsg+0xcd/0x170
[ 2490.513813][   T73]      do_syscall_64+0xc6/0x1e0
[ 2490.513813][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2490.513813][   T73] 
[ 2490.515343][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2490.515343][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2490.515343][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2490.515343][   T73]      ipv6_find_idev+0x102/0x170
[ 2490.515343][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2490.515343][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2490.515343][   T73]      netlink_rcv_skb+0x130/0x360
[ 2490.515343][   T73]      netlink_unicast+0x449/0x710
[ 2490.515343][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2490.515343][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2490.515343][   T73]      ___sys_sendmsg+0xee/0x170
[ 2490.515343][   T73]      __sys_sendmsg+0xcd/0x170
[ 2490.515343][   T73]      do_syscall_64+0xc6/0x1e0
[ 2490.515343][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2490.515343][   T73] 
[ 2490.517033][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2490.517323][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2490.517323][   T73]      netdev_get_by_index+0x5e/0x80
[ 2490.517323][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2490.517323][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2490.517323][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2490.517323][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2490.517323][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2490.517323][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2490.517323][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2490.517323][   T73]      addrconf_dad_begin+0x310/0x670
[ 2490.517323][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2490.517323][   T73]      process_one_work+0x84d/0x18a0
[ 2490.517323][   T73]      worker_thread+0x587/0xd30
[ 2490.517323][   T73]      kthread+0x28a/0x350
[ 2490.517323][   T73]      ret_from_fork+0x31/0x70
[ 2490.517323][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2490.517323][   T73] 
[ 2490.519631][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2490.519631][   T73]      netdev_get_by_index+0x5e/0x80
[ 2490.519631][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2490.519631][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2490.519631][   T73]      ip6_route_add+0x1c/0x140
[ 2490.519631][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2490.519631][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2490.519631][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2490.519631][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2490.519631][   T73]      netlink_rcv_skb+0x130/0x360
[ 2490.519631][   T73]      netlink_unicast+0x449/0x710
[ 2490.519631][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2490.519631][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2490.519631][   T73]      ___sys_sendmsg+0xee/0x170
[ 2490.519631][   T73]      __sys_sendmsg+0xcd/0x170
[ 2490.519631][   T73]      do_syscall_64+0xc6/0x1e0
[ 2490.519631][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2490.519631][   T73] 
[ 2490.521614][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2490.521614][   T73]      netdev_get_by_index+0x5e/0x80
[ 2490.521614][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2490.521614][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2490.521614][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2490.521614][   T73]      ipv6_add_addr+0x411/0x2000
[ 2490.521614][   T73]      inet6_addr_add+0x30e/0xa40
[ 2490.521614][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2490.521614][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2490.521614][   T73]      netlink_rcv_skb+0x130/0x360
[ 2490.521614][   T73]      netlink_unicast+0x449/0x710
[ 2490.521614][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2490.521614][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2490.521614][   T73]      ___sys_sendmsg+0xee/0x170
[ 2490.521614][   T73]      __sys_sendmsg+0xcd/0x170
[ 2490.521614][   T73]      do_syscall_64+0xc6/0x1e0
[ 2490.521614][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2490.521614][   T73] 
[ 2490.523613][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2490.523613][   T73]      netdev_get_by_index+0x5e/0x80
[ 2490.523613][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2490.523613][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2490.523613][   T73]      ip6_route_add+0x1c/0x140
[ 2490.523613][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2490.523613][   T73]      addrconf_add_dev+0xe2/0x170
[ 2490.523613][   T73]      inet6_addr_add+0x12f/0xa40
[ 2490.523613][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2490.523613][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2490.523613][   T73]      netlink_rcv_skb+0x130/0x360
[ 2490.523613][   T73]      netlink_unicast+0x449/0x710
[ 2490.523613][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2490.523613][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2490.523613][   T73]      ___sys_sendmsg+0xee/0x170
[ 2490.523613][   T73]      __sys_sendmsg+0xcd/0x170
[ 2490.523613][   T73]      do_syscall_64+0xc6/0x1e0
[ 2490.523613][   T73] 
[ 2490.525562][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2490.525562][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2490.525562][   T73]      ipv6_find_idev+0x102/0x170
[ 2490.525562][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2490.525562][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2490.525562][   T73]      netlink_rcv_skb+0x130/0x360
[ 2490.525562][   T73]      netlink_unicast+0x449/0x710
[ 2490.525562][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2490.525562][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2490.525562][   T73]      ___sys_sendmsg+0xee/0x170
[ 2490.525562][   T73]      __sys_sendmsg+0xcd/0x170
[ 2490.525562][   T73]      do_syscall_64+0xc6/0x1e0
[ 2490.525562][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2490.525562][   T73] 
[ 2490.527087][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2490.527087][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2490.527087][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2490.527087][   T73]      ipv6_find_idev+0x102/0x170
[ 2490.527087][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2490.527087][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2490.527087][   T73]      netlink_rcv_skb+0x130/0x360
[ 2490.527087][   T73]      netlink_unicast+0x449/0x710
[ 2490.527087][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2490.527087][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2490.527087][   T73]      ___sys_sendmsg+0xee/0x170
[ 2490.527087][   T73]      __sys_sendmsg+0xcd/0x170
[ 2490.527087][   T73]      do_syscall_64+0xc6/0x1e0
[ 2490.527087][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2490.527087][   T73] 
[ 2490.528766][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2490.529033][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2490.529033][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2490.529033][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2490.529033][   T73]      fib6_nh_init+0xa22/0x1580
[ 2490.529033][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2490.529033][   T73]      ip6_route_add+0x1c/0x140
[ 2490.529033][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2490.529033][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2490.529033][   T73]      netlink_rcv_skb+0x130/0x360
[ 2490.529033][   T73]      netlink_unicast+0x449/0x710
[ 2490.529033][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2490.529033][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2490.529033][   T73]      ___sys_sendmsg+0xee/0x170
[ 2490.529033][   T73]      __sys_sendmsg+0xcd/0x170
[ 2490.529033][   T73]      do_syscall_64+0xc6/0x1e0
[ 2490.529033][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2490.529033][   T73] 
[ 2490.531025][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2490.531025][   T73]      dst_init+0x84/0x4a0
[ 2490.531025][   T73]      dst_alloc+0x97/0x150
[ 2490.531025][   T73]      ip6_dst_alloc+0x23/0x90
[ 2490.531025][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2490.531025][   T73]      ip6_pol_route+0x56f/0x840
[ 2490.531025][   T73]      fib6_rule_lookup+0x456/0x630
[ 2490.531025][   T73]      ip6_route_input+0x59c/0xa50
[ 2490.531025][   T73]      ipv6_rcv+0x397/0x810
[ 2490.531025][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2490.531025][   T73]      process_backlog+0x101/0x620
[ 2490.531025][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2490.531025][   T73]      net_rx_action+0x495/0xbe0
[ 2490.531025][   T73]      __do_softirq+0x1b5/0x7f6
[ 2490.531025][   T73] 
[ 2490.532831][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2490.532831][   T73]      netdev_get_by_index+0x5e/0x80
[ 2490.532831][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2490.532831][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2490.532831][   T73]      ip6_route_add+0x1c/0x140
[ 2490.532831][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2490.532831][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2490.532831][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2490.532831][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2490.532831][   T73]      netlink_rcv_skb+0x130/0x360
[ 2490.532831][   T73]      netlink_unicast+0x449/0x710
[ 2490.532831][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2490.532831][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2490.532831][   T73]      ___sys_sendmsg+0xee/0x170
[ 2490.532831][   T73]      __sys_sendmsg+0xcd/0x170
[ 2490.532831][   T73]      do_syscall_64+0xc6/0x1e0
[ 2490.532831][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2490.532831][   T73] 
[ 2490.535065][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2490.535065][   T73]      netdev_get_by_index+0x5e/0x80
[ 2490.535065][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2490.535065][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2490.535065][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2490.535065][   T73]      ipv6_add_addr+0x411/0x2000
[ 2490.535065][   T73]      inet6_addr_add+0x30e/0xa40
[ 2490.535065][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2490.535065][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2490.535065][   T73]      netlink_rcv_skb+0x130/0x360
[ 2490.535065][   T73]      netlink_unicast+0x449/0x710
[ 2490.535065][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2490.535065][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2490.535065][   T73]      ___sys_sendmsg+0xee/0x170
[ 2490.535065][   T73]      __sys_sendmsg+0xcd/0x170
[ 2490.535065][   T73]      do_syscall_64+0xc6/0x1e0
[ 2490.535065][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2490.535065][   T73] 
[ 2490.537350][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2490.537350][   T73]      netdev_get_by_index+0x5e/0x80
[ 2490.537350][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2490.537350][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2490.537350][   T73]      ip6_route_add+0x1c/0x140
[ 2490.537350][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2490.537350][   T73]      addrconf_add_dev+0xe2/0x170
[ 2490.537350][   T73]      inet6_addr_add+0x12f/0xa40
[ 2490.537350][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2490.537350][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2490.537350][   T73]      netlink_rcv_skb+0x130/0x360
[ 2490.537350][   T73]      netlink_unicast+0x449/0x710
[ 2490.537350][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2490.537350][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2490.537350][   T73]      ___sys_sendmsg+0xee/0x170
[ 2490.537350][   T73]      __sys_sendmsg+0xcd/0x170
[ 2490.537350][   T73]      do_syscall_64+0xc6/0x1e0
[ 2490.537350][   T73] 
[ 2490.539543][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2490.539543][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2490.539543][   T73]      ipv6_find_idev+0x102/0x170
[ 2490.539543][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2490.539543][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2490.539543][   T73]      netlink_rcv_skb+0x130/0x360
[ 2490.539543][   T73]      netlink_unicast+0x449/0x710
[ 2490.539543][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2490.539543][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2490.539543][   T73]      ___sys_sendmsg+0xee/0x170
[ 2490.539543][   T73]      __sys_sendmsg+0xcd/0x170
[ 2490.539543][   T73]      do_syscall_64+0xc6/0x1e0
[ 2490.539543][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2490.539543][   T73] 
[ 2490.541253][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2490.541253][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2490.541253][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2490.541253][   T73]      ipv6_find_idev+0x102/0x170
[ 2490.541253][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2490.541253][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2490.541253][   T73]      netlink_rcv_skb+0x130/0x360
[ 2490.541253][   T73]      netlink_unicast+0x449/0x710
[ 2490.541253][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2490.541253][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2490.541253][   T73]      ___sys_sendmsg+0xee/0x170
[ 2490.541253][   T73]      __sys_sendmsg+0xcd/0x170
[ 2490.541253][   T73]      do_syscall_64+0xc6/0x1e0
[ 2490.541253][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2490.541253][   T73] 
[ 2490.543134][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2490.543410][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2490.543410][   T73]      netdev_get_by_index+0x5e/0x80
[ 2490.543410][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2490.543410][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2490.543410][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2490.543410][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2490.543410][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2490.543410][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2490.543410][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2490.543410][   T73]      addrconf_dad_begin+0x310/0x670
[ 2490.543410][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2490.543410][   T73]      process_one_work+0x84d/0x18a0
[ 2490.543410][   T73]      worker_thread+0x587/0xd30
[ 2490.543410][   T73]      kthread+0x28a/0x350
[ 2490.543410][   T73]      ret_from_fork+0x31/0x70
[ 2490.543410][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2490.543410][   T73] 
[ 2490.545568][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2490.545568][   T73]      netdev_get_by_index+0x5e/0x80
[ 2490.545568][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2490.545568][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2490.545568][   T73]      ip6_route_add+0x1c/0x140
[ 2490.545568][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2490.545568][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2490.545568][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2490.545568][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2490.545568][   T73]      netlink_rcv_skb+0x130/0x360
[ 2490.545568][   T73]      netlink_unicast+0x449/0x710
[ 2490.545568][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2490.545568][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2490.545568][   T73]      ___sys_sendmsg+0xee/0x170
[ 2490.545568][   T73]      __sys_sendmsg+0xcd/0x170
[ 2490.545568][   T73]      do_syscall_64+0xc6/0x1e0
[ 2490.545568][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2490.545568][   T73] 
[ 2490.547853][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2490.547853][   T73]      netdev_get_by_index+0x5e/0x80
[ 2490.547853][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2490.547853][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2490.547853][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2490.547853][   T73]      ipv6_add_addr+0x411/0x2000
[ 2490.547853][   T73]      inet6_addr_add+0x30e/0xa40
[ 2490.547853][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2490.547853][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2490.547853][   T73]      netlink_rcv_skb+0x130/0x360
[ 2490.547853][   T73]      netlink_unicast+0x449/0x710
[ 2490.547853][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2490.547853][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2490.547853][   T73]      ___sys_sendmsg+0xee/0x170
[ 2490.547853][   T73]      __sys_sendmsg+0xcd/0x170
[ 2490.547853][   T73]      do_syscall_64+0xc6/0x1e0
[ 2490.547853][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2490.547853][   T73] 
[ 2490.550084][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2490.550084][   T73]      netdev_get_by_index+0x5e/0x80
[ 2490.550084][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2490.550084][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2490.550084][   T73]      ip6_route_add+0x1c/0x140
[ 2490.550084][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2490.550084][   T73]      addrconf_add_dev+0xe2/0x170
[ 2490.550084][   T73]      inet6_addr_add+0x12f/0xa40
[ 2490.550084][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2490.550084][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2490.550084][   T73]      netlink_rcv_skb+0x130/0x360
[ 2490.550084][   T73]      netlink_unicast+0x449/0x710
[ 2490.550084][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2490.550084][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2490.550084][   T73]      ___sys_sendmsg+0xee/0x170
[ 2490.550084][   T73]      __sys_sendmsg+0xcd/0x170
[ 2490.550084][   T73]      do_syscall_64+0xc6/0x1e0
[ 2490.550084][   T73] 
[ 2490.552211][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2490.552211][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2490.552211][   T73]      ipv6_find_idev+0x102/0x170
[ 2490.552211][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2490.552211][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2490.552211][   T73]      netlink_rcv_skb+0x130/0x360
[ 2490.552211][   T73]      netlink_unicast+0x449/0x710
[ 2490.552211][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2490.552211][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2490.552211][   T73]      ___sys_sendmsg+0xee/0x170
[ 2490.552211][   T73]      __sys_sendmsg+0xcd/0x170
[ 2490.552211][   T73]      do_syscall_64+0xc6/0x1e0
[ 2490.552211][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2490.552211][   T73] 
[ 2490.553935][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2490.553935][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2490.553935][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2490.553935][   T73]      ipv6_find_idev+0x102/0x170
[ 2490.553935][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2490.553935][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2490.553935][   T73]      netlink_rcv_skb+0x130/0x360
[ 2490.553935][   T73]      netlink_unicast+0x449/0x710
[ 2490.553935][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2490.553935][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2490.553935][   T73]      ___sys_sendmsg+0xee/0x170
[ 2490.553935][   T73]      __sys_sendmsg+0xcd/0x170
[ 2490.553935][   T73]      do_syscall_64+0xc6/0x1e0
[ 2490.553935][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2490.553935][   T73] 
[ 2500.575779][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2500.576209][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2500.576209][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2500.576209][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2500.576209][   T73]      fib6_nh_init+0xa22/0x1580
[ 2500.576209][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2500.576209][   T73]      ip6_route_add+0x1c/0x140
[ 2500.576209][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2500.576209][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2500.576209][   T73]      netlink_rcv_skb+0x130/0x360
[ 2500.576209][   T73]      netlink_unicast+0x449/0x710
[ 2500.576209][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2500.576209][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2500.576209][   T73]      ___sys_sendmsg+0xee/0x170
[ 2500.576209][   T73]      __sys_sendmsg+0xcd/0x170
[ 2500.576209][   T73]      do_syscall_64+0xc6/0x1e0
[ 2500.576209][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2500.576209][   T73] 
[ 2500.578089][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2500.578089][   T73]      dst_init+0x84/0x4a0
[ 2500.578089][   T73]      dst_alloc+0x97/0x150
[ 2500.578089][   T73]      ip6_dst_alloc+0x23/0x90
[ 2500.578089][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2500.578089][   T73]      ip6_pol_route+0x56f/0x840
[ 2500.578089][   T73]      fib6_rule_lookup+0x456/0x630
[ 2500.578089][   T73]      ip6_route_input+0x59c/0xa50
[ 2500.578089][   T73]      ipv6_rcv+0x397/0x810
[ 2500.578089][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2500.578089][   T73]      process_backlog+0x101/0x620
[ 2500.578089][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2500.578089][   T73]      net_rx_action+0x495/0xbe0
[ 2500.578089][   T73]      __do_softirq+0x1b5/0x7f6
[ 2500.578089][   T73] 
[ 2500.579718][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2500.579718][   T73]      netdev_get_by_index+0x5e/0x80
[ 2500.579718][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2500.579718][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2500.579718][   T73]      ip6_route_add+0x1c/0x140
[ 2500.579718][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2500.579718][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2500.579718][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2500.579718][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2500.579718][   T73]      netlink_rcv_skb+0x130/0x360
[ 2500.579718][   T73]      netlink_unicast+0x449/0x710
[ 2500.579718][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2500.579718][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2500.579718][   T73]      ___sys_sendmsg+0xee/0x170
[ 2500.579718][   T73]      __sys_sendmsg+0xcd/0x170
[ 2500.579718][   T73]      do_syscall_64+0xc6/0x1e0
[ 2500.579718][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2500.579718][   T73] 
[ 2500.581705][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2500.581705][   T73]      netdev_get_by_index+0x5e/0x80
[ 2500.581705][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2500.581705][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2500.581705][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2500.581705][   T73]      ipv6_add_addr+0x411/0x2000
[ 2500.581705][   T73]      inet6_addr_add+0x30e/0xa40
[ 2500.581705][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2500.581705][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2500.581705][   T73]      netlink_rcv_skb+0x130/0x360
[ 2500.581705][   T73]      netlink_unicast+0x449/0x710
[ 2500.581705][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2500.581705][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2500.581705][   T73]      ___sys_sendmsg+0xee/0x170
[ 2500.581705][   T73]      __sys_sendmsg+0xcd/0x170
[ 2500.581705][   T73]      do_syscall_64+0xc6/0x1e0
[ 2500.581705][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2500.581705][   T73] 
[ 2500.583702][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2500.583702][   T73]      netdev_get_by_index+0x5e/0x80
[ 2500.583702][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2500.583702][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2500.583702][   T73]      ip6_route_add+0x1c/0x140
[ 2500.583702][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2500.583702][   T73]      addrconf_add_dev+0xe2/0x170
[ 2500.583702][   T73]      inet6_addr_add+0x12f/0xa40
[ 2500.583702][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2500.583702][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2500.583702][   T73]      netlink_rcv_skb+0x130/0x360
[ 2500.583702][   T73]      netlink_unicast+0x449/0x710
[ 2500.583702][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2500.583702][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2500.583702][   T73]      ___sys_sendmsg+0xee/0x170
[ 2500.583702][   T73]      __sys_sendmsg+0xcd/0x170
[ 2500.583702][   T73]      do_syscall_64+0xc6/0x1e0
[ 2500.583702][   T73] 
[ 2500.585651][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2500.585651][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2500.585651][   T73]      ipv6_find_idev+0x102/0x170
[ 2500.585651][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2500.585651][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2500.585651][   T73]      netlink_rcv_skb+0x130/0x360
[ 2500.585651][   T73]      netlink_unicast+0x449/0x710
[ 2500.585651][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2500.585651][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2500.585651][   T73]      ___sys_sendmsg+0xee/0x170
[ 2500.585651][   T73]      __sys_sendmsg+0xcd/0x170
[ 2500.585651][   T73]      do_syscall_64+0xc6/0x1e0
[ 2500.585651][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2500.585651][   T73] 
[ 2500.587177][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2500.587177][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2500.587177][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2500.587177][   T73]      ipv6_find_idev+0x102/0x170
[ 2500.587177][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2500.587177][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2500.587177][   T73]      netlink_rcv_skb+0x130/0x360
[ 2500.587177][   T73]      netlink_unicast+0x449/0x710
[ 2500.587177][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2500.587177][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2500.587177][   T73]      ___sys_sendmsg+0xee/0x170
[ 2500.587177][   T73]      __sys_sendmsg+0xcd/0x170
[ 2500.587177][   T73]      do_syscall_64+0xc6/0x1e0
[ 2500.587177][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2500.587177][   T73] 
[ 2500.588872][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2500.589156][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2500.589156][   T73]      netdev_get_by_index+0x5e/0x80
[ 2500.589156][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2500.589156][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2500.589156][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2500.589156][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2500.589156][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2500.589156][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2500.589156][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2500.589156][   T73]      addrconf_dad_begin+0x310/0x670
[ 2500.589156][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2500.589156][   T73]      process_one_work+0x84d/0x18a0
[ 2500.589156][   T73]      worker_thread+0x587/0xd30
[ 2500.589156][   T73]      kthread+0x28a/0x350
[ 2500.589156][   T73]      ret_from_fork+0x31/0x70
[ 2500.589156][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2500.589156][   T73] 
[ 2500.591052][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2500.591052][   T73]      netdev_get_by_index+0x5e/0x80
[ 2500.591052][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2500.591052][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2500.591052][   T73]      ip6_route_add+0x1c/0x140
[ 2500.591052][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2500.591052][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2500.591052][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2500.591052][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2500.591052][   T73]      netlink_rcv_skb+0x130/0x360
[ 2500.591052][   T73]      netlink_unicast+0x449/0x710
[ 2500.591052][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2500.591052][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2500.591052][   T73]      ___sys_sendmsg+0xee/0x170
[ 2500.591052][   T73]      __sys_sendmsg+0xcd/0x170
[ 2500.591052][   T73]      do_syscall_64+0xc6/0x1e0
[ 2500.591052][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2500.591052][   T73] 
[ 2500.593044][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2500.593044][   T73]      netdev_get_by_index+0x5e/0x80
[ 2500.593044][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2500.593044][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2500.593044][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2500.593044][   T73]      ipv6_add_addr+0x411/0x2000
[ 2500.593044][   T73]      inet6_addr_add+0x30e/0xa40
[ 2500.593044][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2500.593044][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2500.593044][   T73]      netlink_rcv_skb+0x130/0x360
[ 2500.593044][   T73]      netlink_unicast+0x449/0x710
[ 2500.593044][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2500.593044][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2500.593044][   T73]      ___sys_sendmsg+0xee/0x170
[ 2500.593044][   T73]      __sys_sendmsg+0xcd/0x170
[ 2500.593044][   T73]      do_syscall_64+0xc6/0x1e0
[ 2500.593044][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2500.593044][   T73] 
[ 2500.595030][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2500.595030][   T73]      netdev_get_by_index+0x5e/0x80
[ 2500.595030][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2500.595030][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2500.595030][   T73]      ip6_route_add+0x1c/0x140
[ 2500.595030][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2500.595030][   T73]      addrconf_add_dev+0xe2/0x170
[ 2500.595030][   T73]      inet6_addr_add+0x12f/0xa40
[ 2500.595030][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2500.595030][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2500.595030][   T73]      netlink_rcv_skb+0x130/0x360
[ 2500.595030][   T73]      netlink_unicast+0x449/0x710
[ 2500.595030][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2500.595030][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2500.595030][   T73]      ___sys_sendmsg+0xee/0x170
[ 2500.595030][   T73]      __sys_sendmsg+0xcd/0x170
[ 2500.595030][   T73]      do_syscall_64+0xc6/0x1e0
[ 2500.595030][   T73] 
[ 2500.596985][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2500.596985][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2500.596985][   T73]      ipv6_find_idev+0x102/0x170
[ 2500.596985][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2500.596985][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2500.596985][   T73]      netlink_rcv_skb+0x130/0x360
[ 2500.596985][   T73]      netlink_unicast+0x449/0x710
[ 2500.596985][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2500.596985][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2500.596985][   T73]      ___sys_sendmsg+0xee/0x170
[ 2500.596985][   T73]      __sys_sendmsg+0xcd/0x170
[ 2500.596985][   T73]      do_syscall_64+0xc6/0x1e0
[ 2500.596985][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2500.596985][   T73] 
[ 2500.598533][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2500.598533][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2500.598533][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2500.598533][   T73]      ipv6_find_idev+0x102/0x170
[ 2500.598533][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2500.598533][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2500.598533][   T73]      netlink_rcv_skb+0x130/0x360
[ 2500.598533][   T73]      netlink_unicast+0x449/0x710
[ 2500.598533][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2500.598533][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2500.598533][   T73]      ___sys_sendmsg+0xee/0x170
[ 2500.598533][   T73]      __sys_sendmsg+0xcd/0x170
[ 2500.598533][   T73]      do_syscall_64+0xc6/0x1e0
[ 2500.598533][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2500.598533][   T73] 
[ 2500.600208][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2500.600478][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2500.600478][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2500.600478][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2500.600478][   T73]      fib6_nh_init+0xa22/0x1580
[ 2500.600478][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2500.600478][   T73]      ip6_route_add+0x1c/0x140
[ 2500.600478][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2500.600478][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2500.600478][   T73]      netlink_rcv_skb+0x130/0x360
[ 2500.600478][   T73]      netlink_unicast+0x449/0x710
[ 2500.600478][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2500.600478][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2500.600478][   T73]      ___sys_sendmsg+0xee/0x170
[ 2500.600478][   T73]      __sys_sendmsg+0xcd/0x170
[ 2500.600478][   T73]      do_syscall_64+0xc6/0x1e0
[ 2500.600478][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2500.600478][   T73] 
[ 2500.602534][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2500.602534][   T73]      dst_init+0x84/0x4a0
[ 2500.602534][   T73]      dst_alloc+0x97/0x150
[ 2500.602534][   T73]      ip6_dst_alloc+0x23/0x90
[ 2500.602534][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2500.602534][   T73]      ip6_pol_route+0x56f/0x840
[ 2500.602534][   T73]      fib6_rule_lookup+0x456/0x630
[ 2500.602534][   T73]      ip6_route_input+0x59c/0xa50
[ 2500.602534][   T73]      ipv6_rcv+0x397/0x810
[ 2500.602534][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2500.602534][   T73]      process_backlog+0x101/0x620
[ 2500.602534][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2500.602534][   T73]      net_rx_action+0x495/0xbe0
[ 2500.602534][   T73]      __do_softirq+0x1b5/0x7f6
[ 2500.602534][   T73] 
[ 2500.604413][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2500.604413][   T73]      netdev_get_by_index+0x5e/0x80
[ 2500.604413][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2500.604413][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2500.604413][   T73]      ip6_route_add+0x1c/0x140
[ 2500.604413][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2500.604413][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2500.604413][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2500.604413][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2500.604413][   T73]      netlink_rcv_skb+0x130/0x360
[ 2500.604413][   T73]      netlink_unicast+0x449/0x710
[ 2500.604413][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2500.604413][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2500.604413][   T73]      ___sys_sendmsg+0xee/0x170
[ 2500.604413][   T73]      __sys_sendmsg+0xcd/0x170
[ 2500.604413][   T73]      do_syscall_64+0xc6/0x1e0
[ 2500.604413][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2500.604413][   T73] 
[ 2500.606655][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2500.606655][   T73]      netdev_get_by_index+0x5e/0x80
[ 2500.606655][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2500.606655][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2500.606655][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2500.606655][   T73]      ipv6_add_addr+0x411/0x2000
[ 2500.606655][   T73]      inet6_addr_add+0x30e/0xa40
[ 2500.606655][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2500.606655][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2500.606655][   T73]      netlink_rcv_skb+0x130/0x360
[ 2500.606655][   T73]      netlink_unicast+0x449/0x710
[ 2500.606655][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2500.606655][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2500.606655][   T73]      ___sys_sendmsg+0xee/0x170
[ 2500.606655][   T73]      __sys_sendmsg+0xcd/0x170
[ 2500.606655][   T73]      do_syscall_64+0xc6/0x1e0
[ 2500.606655][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2500.606655][   T73] 
[ 2500.608888][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2500.608888][   T73]      netdev_get_by_index+0x5e/0x80
[ 2500.608888][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2500.608888][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2500.608888][   T73]      ip6_route_add+0x1c/0x140
[ 2500.608888][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2500.608888][   T73]      addrconf_add_dev+0xe2/0x170
[ 2500.608888][   T73]      inet6_addr_add+0x12f/0xa40
[ 2500.608888][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2500.608888][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2500.608888][   T73]      netlink_rcv_skb+0x130/0x360
[ 2500.608888][   T73]      netlink_unicast+0x449/0x710
[ 2500.608888][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2500.608888][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2500.608888][   T73]      ___sys_sendmsg+0xee/0x170
[ 2500.608888][   T73]      __sys_sendmsg+0xcd/0x170
[ 2500.608888][   T73]      do_syscall_64+0xc6/0x1e0
[ 2500.608888][   T73] 
[ 2500.611019][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2500.611019][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2500.611019][   T73]      ipv6_find_idev+0x102/0x170
[ 2500.611019][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2500.611019][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2500.611019][   T73]      netlink_rcv_skb+0x130/0x360
[ 2500.611019][   T73]      netlink_unicast+0x449/0x710
[ 2500.611019][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2500.611019][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2500.611019][   T73]      ___sys_sendmsg+0xee/0x170
[ 2500.611019][   T73]      __sys_sendmsg+0xcd/0x170
[ 2500.611019][   T73]      do_syscall_64+0xc6/0x1e0
[ 2500.611019][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2500.611019][   T73] 
[ 2500.612791][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2500.612791][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2500.612791][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2500.612791][   T73]      ipv6_find_idev+0x102/0x170
[ 2500.612791][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2500.612791][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2500.612791][   T73]      netlink_rcv_skb+0x130/0x360
[ 2500.612791][   T73]      netlink_unicast+0x449/0x710
[ 2500.612791][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2500.612791][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2500.612791][   T73]      ___sys_sendmsg+0xee/0x170
[ 2500.612791][   T73]      __sys_sendmsg+0xcd/0x170
[ 2500.612791][   T73]      do_syscall_64+0xc6/0x1e0
[ 2500.612791][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2500.612791][   T73] 
[ 2500.614705][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2500.614976][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2500.614976][   T73]      netdev_get_by_index+0x5e/0x80
[ 2500.614976][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2500.614976][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2500.614976][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2500.614976][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2500.614976][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2500.614976][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2500.614976][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2500.614976][   T73]      addrconf_dad_begin+0x310/0x670
[ 2500.614976][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2500.614976][   T73]      process_one_work+0x84d/0x18a0
[ 2500.614976][   T73]      worker_thread+0x587/0xd30
[ 2500.614976][   T73]      kthread+0x28a/0x350
[ 2500.614976][   T73]      ret_from_fork+0x31/0x70
[ 2500.614976][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2500.614976][   T73] 
[ 2500.617142][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2500.617142][   T73]      netdev_get_by_index+0x5e/0x80
[ 2500.617142][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2500.617142][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2500.617142][   T73]      ip6_route_add+0x1c/0x140
[ 2500.617142][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2500.617142][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2500.617142][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2500.617142][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2500.617142][   T73]      netlink_rcv_skb+0x130/0x360
[ 2500.617142][   T73]      netlink_unicast+0x449/0x710
[ 2500.617142][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2500.617142][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2500.617142][   T73]      ___sys_sendmsg+0xee/0x170
[ 2500.617142][   T73]      __sys_sendmsg+0xcd/0x170
[ 2500.617142][   T73]      do_syscall_64+0xc6/0x1e0
[ 2500.617142][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2500.617142][   T73] 
[ 2500.619318][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2500.619318][   T73]      netdev_get_by_index+0x5e/0x80
[ 2500.619318][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2500.619318][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2500.619318][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2500.619318][   T73]      ipv6_add_addr+0x411/0x2000
[ 2500.619318][   T73]      inet6_addr_add+0x30e/0xa40
[ 2500.619318][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2500.619318][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2500.619318][   T73]      netlink_rcv_skb+0x130/0x360
[ 2500.619318][   T73]      netlink_unicast+0x449/0x710
[ 2500.619318][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2500.619318][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2500.619318][   T73]      ___sys_sendmsg+0xee/0x170
[ 2500.619318][   T73]      __sys_sendmsg+0xcd/0x170
[ 2500.619318][   T73]      do_syscall_64+0xc6/0x1e0
[ 2500.619318][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2500.619318][   T73] 
[ 2500.621553][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2500.621553][   T73]      netdev_get_by_index+0x5e/0x80
[ 2500.621553][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2500.621553][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2500.621553][   T73]      ip6_route_add+0x1c/0x140
[ 2500.621553][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2500.621553][   T73]      addrconf_add_dev+0xe2/0x170
[ 2500.621553][   T73]      inet6_addr_add+0x12f/0xa40
[ 2500.621553][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2500.621553][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2500.621553][   T73]      netlink_rcv_skb+0x130/0x360
[ 2500.621553][   T73]      netlink_unicast+0x449/0x710
[ 2500.621553][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2500.621553][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2500.621553][   T73]      ___sys_sendmsg+0xee/0x170
[ 2500.621553][   T73]      __sys_sendmsg+0xcd/0x170
[ 2500.621553][   T73]      do_syscall_64+0xc6/0x1e0
[ 2500.621553][   T73] 
[ 2500.623814][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2500.623814][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2500.623814][   T73]      ipv6_find_idev+0x102/0x170
[ 2500.623814][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2500.623814][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2500.623814][   T73]      netlink_rcv_skb+0x130/0x360
[ 2500.623814][   T73]      netlink_unicast+0x449/0x710
[ 2500.623814][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2500.623814][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2500.623814][   T73]      ___sys_sendmsg+0xee/0x170
[ 2500.623814][   T73]      __sys_sendmsg+0xcd/0x170
[ 2500.623814][   T73]      do_syscall_64+0xc6/0x1e0
[ 2500.623814][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2500.623814][   T73] 
[ 2500.625539][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2500.625539][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2500.625539][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2500.625539][   T73]      ipv6_find_idev+0x102/0x170
[ 2500.625539][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2500.625539][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2500.625539][   T73]      netlink_rcv_skb+0x130/0x360
[ 2500.625539][   T73]      netlink_unicast+0x449/0x710
[ 2500.625539][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2500.625539][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2500.625539][   T73]      ___sys_sendmsg+0xee/0x170
[ 2500.625539][   T73]      __sys_sendmsg+0xcd/0x170
[ 2500.625539][   T73]      do_syscall_64+0xc6/0x1e0
[ 2500.625539][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2500.625539][   T73] 
[ 2510.727835][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2510.728285][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2510.728285][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2510.728285][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2510.728285][   T73]      fib6_nh_init+0xa22/0x1580
[ 2510.728285][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2510.728285][   T73]      ip6_route_add+0x1c/0x140
[ 2510.728285][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2510.728285][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2510.728285][   T73]      netlink_rcv_skb+0x130/0x360
[ 2510.728285][   T73]      netlink_unicast+0x449/0x710
[ 2510.728285][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2510.728285][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2510.728285][   T73]      ___sys_sendmsg+0xee/0x170
[ 2510.728285][   T73]      __sys_sendmsg+0xcd/0x170
[ 2510.728285][   T73]      do_syscall_64+0xc6/0x1e0
[ 2510.728285][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2510.728285][   T73] 
[ 2510.730225][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2510.730225][   T73]      dst_init+0x84/0x4a0
[ 2510.730225][   T73]      dst_alloc+0x97/0x150
[ 2510.730225][   T73]      ip6_dst_alloc+0x23/0x90
[ 2510.730225][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2510.730225][   T73]      ip6_pol_route+0x56f/0x840
[ 2510.730225][   T73]      fib6_rule_lookup+0x456/0x630
[ 2510.730225][   T73]      ip6_route_input+0x59c/0xa50
[ 2510.730225][   T73]      ipv6_rcv+0x397/0x810
[ 2510.730225][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2510.730225][   T73]      process_backlog+0x101/0x620
[ 2510.730225][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2510.730225][   T73]      net_rx_action+0x495/0xbe0
[ 2510.730225][   T73]      __do_softirq+0x1b5/0x7f6
[ 2510.730225][   T73] 
[ 2510.731903][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2510.731903][   T73]      netdev_get_by_index+0x5e/0x80
[ 2510.731903][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2510.731903][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2510.731903][   T73]      ip6_route_add+0x1c/0x140
[ 2510.731903][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2510.731903][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2510.731903][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2510.731903][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2510.731903][   T73]      netlink_rcv_skb+0x130/0x360
[ 2510.731903][   T73]      netlink_unicast+0x449/0x710
[ 2510.731903][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2510.731903][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2510.731903][   T73]      ___sys_sendmsg+0xee/0x170
[ 2510.731903][   T73]      __sys_sendmsg+0xcd/0x170
[ 2510.731903][   T73]      do_syscall_64+0xc6/0x1e0
[ 2510.731903][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2510.731903][   T73] 
[ 2510.733961][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2510.733961][   T73]      netdev_get_by_index+0x5e/0x80
[ 2510.733961][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2510.733961][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2510.733961][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2510.733961][   T73]      ipv6_add_addr+0x411/0x2000
[ 2510.733961][   T73]      inet6_addr_add+0x30e/0xa40
[ 2510.733961][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2510.733961][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2510.733961][   T73]      netlink_rcv_skb+0x130/0x360
[ 2510.733961][   T73]      netlink_unicast+0x449/0x710
[ 2510.733961][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2510.733961][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2510.733961][   T73]      ___sys_sendmsg+0xee/0x170
[ 2510.733961][   T73]      __sys_sendmsg+0xcd/0x170
[ 2510.733961][   T73]      do_syscall_64+0xc6/0x1e0
[ 2510.733961][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2510.733961][   T73] 
[ 2510.736006][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2510.736006][   T73]      netdev_get_by_index+0x5e/0x80
[ 2510.736006][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2510.736006][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2510.736006][   T73]      ip6_route_add+0x1c/0x140
[ 2510.736006][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2510.736006][   T73]      addrconf_add_dev+0xe2/0x170
[ 2510.736006][   T73]      inet6_addr_add+0x12f/0xa40
[ 2510.736006][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2510.736006][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2510.736006][   T73]      netlink_rcv_skb+0x130/0x360
[ 2510.736006][   T73]      netlink_unicast+0x449/0x710
[ 2510.736006][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2510.736006][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2510.736006][   T73]      ___sys_sendmsg+0xee/0x170
[ 2510.736006][   T73]      __sys_sendmsg+0xcd/0x170
[ 2510.736006][   T73]      do_syscall_64+0xc6/0x1e0
[ 2510.736006][   T73] 
[ 2510.738012][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2510.738012][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2510.738012][   T73]      ipv6_find_idev+0x102/0x170
[ 2510.738012][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2510.738012][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2510.738012][   T73]      netlink_rcv_skb+0x130/0x360
[ 2510.738012][   T73]      netlink_unicast+0x449/0x710
[ 2510.738012][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2510.738012][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2510.738012][   T73]      ___sys_sendmsg+0xee/0x170
[ 2510.738012][   T73]      __sys_sendmsg+0xcd/0x170
[ 2510.738012][   T73]      do_syscall_64+0xc6/0x1e0
[ 2510.738012][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2510.738012][   T73] 
[ 2510.739568][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2510.739568][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2510.739568][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2510.739568][   T73]      ipv6_find_idev+0x102/0x170
[ 2510.739568][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2510.739568][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2510.739568][   T73]      netlink_rcv_skb+0x130/0x360
[ 2510.739568][   T73]      netlink_unicast+0x449/0x710
[ 2510.739568][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2510.739568][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2510.739568][   T73]      ___sys_sendmsg+0xee/0x170
[ 2510.739568][   T73]      __sys_sendmsg+0xcd/0x170
[ 2510.739568][   T73]      do_syscall_64+0xc6/0x1e0
[ 2510.739568][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2510.739568][   T73] 
[ 2510.741308][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2510.741618][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2510.741618][   T73]      netdev_get_by_index+0x5e/0x80
[ 2510.741618][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2510.741618][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2510.741618][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2510.741618][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2510.741618][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2510.741618][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2510.741618][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2510.741618][   T73]      addrconf_dad_begin+0x310/0x670
[ 2510.741618][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2510.741618][   T73]      process_one_work+0x84d/0x18a0
[ 2510.741618][   T73]      worker_thread+0x587/0xd30
[ 2510.741618][   T73]      kthread+0x28a/0x350
[ 2510.741618][   T73]      ret_from_fork+0x31/0x70
[ 2510.741618][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2510.741618][   T73] 
[ 2510.743555][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2510.743555][   T73]      netdev_get_by_index+0x5e/0x80
[ 2510.743555][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2510.743555][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2510.743555][   T73]      ip6_route_add+0x1c/0x140
[ 2510.743555][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2510.743555][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2510.743555][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2510.743555][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2510.743555][   T73]      netlink_rcv_skb+0x130/0x360
[ 2510.743555][   T73]      netlink_unicast+0x449/0x710
[ 2510.743555][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2510.743555][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2510.743555][   T73]      ___sys_sendmsg+0xee/0x170
[ 2510.743555][   T73]      __sys_sendmsg+0xcd/0x170
[ 2510.743555][   T73]      do_syscall_64+0xc6/0x1e0
[ 2510.743555][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2510.743555][   T73] 
[ 2510.745576][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2510.745576][   T73]      netdev_get_by_index+0x5e/0x80
[ 2510.745576][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2510.745576][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2510.745576][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2510.745576][   T73]      ipv6_add_addr+0x411/0x2000
[ 2510.745576][   T73]      inet6_addr_add+0x30e/0xa40
[ 2510.745576][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2510.745576][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2510.745576][   T73]      netlink_rcv_skb+0x130/0x360
[ 2510.745576][   T73]      netlink_unicast+0x449/0x710
[ 2510.745576][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2510.745576][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2510.745576][   T73]      ___sys_sendmsg+0xee/0x170
[ 2510.745576][   T73]      __sys_sendmsg+0xcd/0x170
[ 2510.745576][   T73]      do_syscall_64+0xc6/0x1e0
[ 2510.745576][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2510.745576][   T73] 
[ 2510.747595][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2510.747595][   T73]      netdev_get_by_index+0x5e/0x80
[ 2510.747595][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2510.747595][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2510.747595][   T73]      ip6_route_add+0x1c/0x140
[ 2510.747595][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2510.747595][   T73]      addrconf_add_dev+0xe2/0x170
[ 2510.747595][   T73]      inet6_addr_add+0x12f/0xa40
[ 2510.747595][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2510.747595][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2510.747595][   T73]      netlink_rcv_skb+0x130/0x360
[ 2510.747595][   T73]      netlink_unicast+0x449/0x710
[ 2510.747595][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2510.747595][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2510.747595][   T73]      ___sys_sendmsg+0xee/0x170
[ 2510.747595][   T73]      __sys_sendmsg+0xcd/0x170
[ 2510.747595][   T73]      do_syscall_64+0xc6/0x1e0
[ 2510.747595][   T73] 
[ 2510.749578][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2510.749578][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2510.749578][   T73]      ipv6_find_idev+0x102/0x170
[ 2510.749578][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2510.749578][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2510.749578][   T73]      netlink_rcv_skb+0x130/0x360
[ 2510.749578][   T73]      netlink_unicast+0x449/0x710
[ 2510.749578][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2510.749578][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2510.749578][   T73]      ___sys_sendmsg+0xee/0x170
[ 2510.749578][   T73]      __sys_sendmsg+0xcd/0x170
[ 2510.749578][   T73]      do_syscall_64+0xc6/0x1e0
[ 2510.749578][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2510.749578][   T73] 
[ 2510.751230][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2510.751230][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2510.751230][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2510.751230][   T73]      ipv6_find_idev+0x102/0x170
[ 2510.751230][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2510.751230][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2510.751230][   T73]      netlink_rcv_skb+0x130/0x360
[ 2510.751230][   T73]      netlink_unicast+0x449/0x710
[ 2510.751230][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2510.751230][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2510.751230][   T73]      ___sys_sendmsg+0xee/0x170
[ 2510.751230][   T73]      __sys_sendmsg+0xcd/0x170
[ 2510.751230][   T73]      do_syscall_64+0xc6/0x1e0
[ 2510.751230][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2510.751230][   T73] 
[ 2510.752934][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2510.753221][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2510.753221][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2510.753221][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2510.753221][   T73]      fib6_nh_init+0xa22/0x1580
[ 2510.753221][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2510.753221][   T73]      ip6_route_add+0x1c/0x140
[ 2510.753221][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2510.753221][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2510.753221][   T73]      netlink_rcv_skb+0x130/0x360
[ 2510.753221][   T73]      netlink_unicast+0x449/0x710
[ 2510.753221][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2510.753221][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2510.753221][   T73]      ___sys_sendmsg+0xee/0x170
[ 2510.753221][   T73]      __sys_sendmsg+0xcd/0x170
[ 2510.753221][   T73]      do_syscall_64+0xc6/0x1e0
[ 2510.753221][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2510.753221][   T73] 
[ 2510.755296][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2510.755296][   T73]      dst_init+0x84/0x4a0
[ 2510.755296][   T73]      dst_alloc+0x97/0x150
[ 2510.755296][   T73]      ip6_dst_alloc+0x23/0x90
[ 2510.755296][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2510.755296][   T73]      ip6_pol_route+0x56f/0x840
[ 2510.755296][   T73]      fib6_rule_lookup+0x456/0x630
[ 2510.755296][   T73]      ip6_route_input+0x59c/0xa50
[ 2510.755296][   T73]      ipv6_rcv+0x397/0x810
[ 2510.755296][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2510.755296][   T73]      process_backlog+0x101/0x620
[ 2510.755296][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2510.755296][   T73]      net_rx_action+0x495/0xbe0
[ 2510.755296][   T73]      __do_softirq+0x1b5/0x7f6
[ 2510.755296][   T73] 
[ 2510.757119][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2510.757119][   T73]      netdev_get_by_index+0x5e/0x80
[ 2510.757119][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2510.757119][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2510.757119][   T73]      ip6_route_add+0x1c/0x140
[ 2510.757119][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2510.757119][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2510.757119][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2510.757119][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2510.757119][   T73]      netlink_rcv_skb+0x130/0x360
[ 2510.757119][   T73]      netlink_unicast+0x449/0x710
[ 2510.757119][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2510.757119][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2510.757119][   T73]      ___sys_sendmsg+0xee/0x170
[ 2510.757119][   T73]      __sys_sendmsg+0xcd/0x170
[ 2510.757119][   T73]      do_syscall_64+0xc6/0x1e0
[ 2510.757119][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2510.757119][   T73] 
[ 2510.759373][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2510.759373][   T73]      netdev_get_by_index+0x5e/0x80
[ 2510.759373][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2510.759373][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2510.759373][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2510.759373][   T73]      ipv6_add_addr+0x411/0x2000
[ 2510.759373][   T73]      inet6_addr_add+0x30e/0xa40
[ 2510.759373][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2510.759373][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2510.759373][   T73]      netlink_rcv_skb+0x130/0x360
[ 2510.759373][   T73]      netlink_unicast+0x449/0x710
[ 2510.759373][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2510.759373][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2510.759373][   T73]      ___sys_sendmsg+0xee/0x170
[ 2510.759373][   T73]      __sys_sendmsg+0xcd/0x170
[ 2510.759373][   T73]      do_syscall_64+0xc6/0x1e0
[ 2510.759373][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2510.759373][   T73] 
[ 2510.761681][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2510.761681][   T73]      netdev_get_by_index+0x5e/0x80
[ 2510.761681][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2510.761681][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2510.761681][   T73]      ip6_route_add+0x1c/0x140
[ 2510.761681][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2510.761681][   T73]      addrconf_add_dev+0xe2/0x170
[ 2510.761681][   T73]      inet6_addr_add+0x12f/0xa40
[ 2510.761681][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2510.761681][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2510.761681][   T73]      netlink_rcv_skb+0x130/0x360
[ 2510.761681][   T73]      netlink_unicast+0x449/0x710
[ 2510.761681][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2510.761681][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2510.761681][   T73]      ___sys_sendmsg+0xee/0x170
[ 2510.761681][   T73]      __sys_sendmsg+0xcd/0x170
[ 2510.761681][   T73]      do_syscall_64+0xc6/0x1e0
[ 2510.761681][   T73] 
[ 2510.763898][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2510.763898][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2510.763898][   T73]      ipv6_find_idev+0x102/0x170
[ 2510.763898][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2510.763898][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2510.763898][   T73]      netlink_rcv_skb+0x130/0x360
[ 2510.763898][   T73]      netlink_unicast+0x449/0x710
[ 2510.763898][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2510.763898][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2510.763898][   T73]      ___sys_sendmsg+0xee/0x170
[ 2510.763898][   T73]      __sys_sendmsg+0xcd/0x170
[ 2510.763898][   T73]      do_syscall_64+0xc6/0x1e0
[ 2510.763898][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2510.763898][   T73] 
[ 2510.765561][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2510.765561][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2510.765561][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2510.765561][   T73]      ipv6_find_idev+0x102/0x170
[ 2510.765561][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2510.765561][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2510.765561][   T73]      netlink_rcv_skb+0x130/0x360
[ 2510.765561][   T73]      netlink_unicast+0x449/0x710
[ 2510.765561][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2510.765561][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2510.765561][   T73]      ___sys_sendmsg+0xee/0x170
[ 2510.765561][   T73]      __sys_sendmsg+0xcd/0x170
[ 2510.765561][   T73]      do_syscall_64+0xc6/0x1e0
[ 2510.765561][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2510.765561][   T73] 
[ 2510.767513][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2510.768233][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2510.768233][   T73]      netdev_get_by_index+0x5e/0x80
[ 2510.768233][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2510.768233][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2510.768233][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2510.768233][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2510.768233][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2510.768233][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2510.768233][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2510.768233][   T73]      addrconf_dad_begin+0x310/0x670
[ 2510.768233][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2510.768233][   T73]      process_one_work+0x84d/0x18a0
[ 2510.768233][   T73]      worker_thread+0x587/0xd30
[ 2510.768233][   T73]      kthread+0x28a/0x350
[ 2510.768233][   T73]      ret_from_fork+0x31/0x70
[ 2510.768233][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2510.768233][   T73] 
[ 2510.770151][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2510.770151][   T73]      netdev_get_by_index+0x5e/0x80
[ 2510.770151][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2510.770151][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2510.770151][   T73]      ip6_route_add+0x1c/0x140
[ 2510.770151][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2510.770151][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2510.770151][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2510.770151][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2510.770151][   T73]      netlink_rcv_skb+0x130/0x360
[ 2510.770151][   T73]      netlink_unicast+0x449/0x710
[ 2510.770151][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2510.770151][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2510.770151][   T73]      ___sys_sendmsg+0xee/0x170
[ 2510.770151][   T73]      __sys_sendmsg+0xcd/0x170
[ 2510.770151][   T73]      do_syscall_64+0xc6/0x1e0
[ 2510.770151][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2510.770151][   T73] 
[ 2510.772279][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2510.772279][   T73]      netdev_get_by_index+0x5e/0x80
[ 2510.772279][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2510.772279][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2510.772279][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2510.772279][   T73]      ipv6_add_addr+0x411/0x2000
[ 2510.772279][   T73]      inet6_addr_add+0x30e/0xa40
[ 2510.772279][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2510.772279][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2510.772279][   T73]      netlink_rcv_skb+0x130/0x360
[ 2510.772279][   T73]      netlink_unicast+0x449/0x710
[ 2510.772279][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2510.772279][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2510.772279][   T73]      ___sys_sendmsg+0xee/0x170
[ 2510.772279][   T73]      __sys_sendmsg+0xcd/0x170
[ 2510.772279][   T73]      do_syscall_64+0xc6/0x1e0
[ 2510.772279][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2510.772279][   T73] 
[ 2510.774592][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2510.774592][   T73]      netdev_get_by_index+0x5e/0x80
[ 2510.774592][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2510.774592][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2510.774592][   T73]      ip6_route_add+0x1c/0x140
[ 2510.774592][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2510.774592][   T73]      addrconf_add_dev+0xe2/0x170
[ 2510.774592][   T73]      inet6_addr_add+0x12f/0xa40
[ 2510.774592][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2510.774592][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2510.774592][   T73]      netlink_rcv_skb+0x130/0x360
[ 2510.774592][   T73]      netlink_unicast+0x449/0x710
[ 2510.774592][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2510.774592][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2510.774592][   T73]      ___sys_sendmsg+0xee/0x170
[ 2510.774592][   T73]      __sys_sendmsg+0xcd/0x170
[ 2510.774592][   T73]      do_syscall_64+0xc6/0x1e0
[ 2510.774592][   T73] 
[ 2510.776738][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2510.776738][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2510.776738][   T73]      ipv6_find_idev+0x102/0x170
[ 2510.776738][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2510.776738][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2510.776738][   T73]      netlink_rcv_skb+0x130/0x360
[ 2510.776738][   T73]      netlink_unicast+0x449/0x710
[ 2510.776738][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2510.776738][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2510.776738][   T73]      ___sys_sendmsg+0xee/0x170
[ 2510.776738][   T73]      __sys_sendmsg+0xcd/0x170
[ 2510.776738][   T73]      do_syscall_64+0xc6/0x1e0
[ 2510.776738][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2510.776738][   T73] 
[ 2510.778466][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2510.778466][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2510.778466][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2510.778466][   T73]      ipv6_find_idev+0x102/0x170
[ 2510.778466][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2510.778466][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2510.778466][   T73]      netlink_rcv_skb+0x130/0x360
[ 2510.778466][   T73]      netlink_unicast+0x449/0x710
[ 2510.778466][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2510.778466][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2510.778466][   T73]      ___sys_sendmsg+0xee/0x170
[ 2510.778466][   T73]      __sys_sendmsg+0xcd/0x170
[ 2510.778466][   T73]      do_syscall_64+0xc6/0x1e0
[ 2510.778466][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2510.778466][   T73] 
[ 2520.871727][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2520.872161][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2520.872161][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2520.872161][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2520.872161][   T73]      fib6_nh_init+0xa22/0x1580
[ 2520.872161][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2520.872161][   T73]      ip6_route_add+0x1c/0x140
[ 2520.872161][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2520.872161][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2520.872161][   T73]      netlink_rcv_skb+0x130/0x360
[ 2520.872161][   T73]      netlink_unicast+0x449/0x710
[ 2520.872161][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2520.872161][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2520.872161][   T73]      ___sys_sendmsg+0xee/0x170
[ 2520.872161][   T73]      __sys_sendmsg+0xcd/0x170
[ 2520.872161][   T73]      do_syscall_64+0xc6/0x1e0
[ 2520.872161][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2520.872161][   T73] 
[ 2520.874137][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2520.874137][   T73]      dst_init+0x84/0x4a0
[ 2520.874137][   T73]      dst_alloc+0x97/0x150
[ 2520.874137][   T73]      ip6_dst_alloc+0x23/0x90
[ 2520.874137][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2520.874137][   T73]      ip6_pol_route+0x56f/0x840
[ 2520.874137][   T73]      fib6_rule_lookup+0x456/0x630
[ 2520.874137][   T73]      ip6_route_input+0x59c/0xa50
[ 2520.874137][   T73]      ipv6_rcv+0x397/0x810
[ 2520.874137][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2520.874137][   T73]      process_backlog+0x101/0x620
[ 2520.874137][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2520.874137][   T73]      net_rx_action+0x495/0xbe0
[ 2520.874137][   T73]      __do_softirq+0x1b5/0x7f6
[ 2520.874137][   T73] 
[ 2520.875808][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2520.875808][   T73]      netdev_get_by_index+0x5e/0x80
[ 2520.875808][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2520.875808][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2520.875808][   T73]      ip6_route_add+0x1c/0x140
[ 2520.875808][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2520.875808][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2520.875808][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2520.875808][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2520.875808][   T73]      netlink_rcv_skb+0x130/0x360
[ 2520.875808][   T73]      netlink_unicast+0x449/0x710
[ 2520.875808][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2520.875808][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2520.875808][   T73]      ___sys_sendmsg+0xee/0x170
[ 2520.875808][   T73]      __sys_sendmsg+0xcd/0x170
[ 2520.875808][   T73]      do_syscall_64+0xc6/0x1e0
[ 2520.875808][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2520.875808][   T73] 
[ 2520.877882][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2520.877882][   T73]      netdev_get_by_index+0x5e/0x80
[ 2520.877882][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2520.877882][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2520.877882][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2520.877882][   T73]      ipv6_add_addr+0x411/0x2000
[ 2520.877882][   T73]      inet6_addr_add+0x30e/0xa40
[ 2520.877882][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2520.877882][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2520.877882][   T73]      netlink_rcv_skb+0x130/0x360
[ 2520.877882][   T73]      netlink_unicast+0x449/0x710
[ 2520.877882][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2520.877882][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2520.877882][   T73]      ___sys_sendmsg+0xee/0x170
[ 2520.877882][   T73]      __sys_sendmsg+0xcd/0x170
[ 2520.877882][   T73]      do_syscall_64+0xc6/0x1e0
[ 2520.877882][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2520.877882][   T73] 
[ 2520.879907][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2520.879907][   T73]      netdev_get_by_index+0x5e/0x80
[ 2520.879907][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2520.879907][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2520.879907][   T73]      ip6_route_add+0x1c/0x140
[ 2520.879907][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2520.879907][   T73]      addrconf_add_dev+0xe2/0x170
[ 2520.879907][   T73]      inet6_addr_add+0x12f/0xa40
[ 2520.879907][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2520.879907][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2520.879907][   T73]      netlink_rcv_skb+0x130/0x360
[ 2520.879907][   T73]      netlink_unicast+0x449/0x710
[ 2520.879907][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2520.879907][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2520.879907][   T73]      ___sys_sendmsg+0xee/0x170
[ 2520.879907][   T73]      __sys_sendmsg+0xcd/0x170
[ 2520.879907][   T73]      do_syscall_64+0xc6/0x1e0
[ 2520.879907][   T73] 
[ 2520.881899][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2520.881899][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2520.881899][   T73]      ipv6_find_idev+0x102/0x170
[ 2520.881899][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2520.881899][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2520.881899][   T73]      netlink_rcv_skb+0x130/0x360
[ 2520.881899][   T73]      netlink_unicast+0x449/0x710
[ 2520.881899][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2520.881899][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2520.881899][   T73]      ___sys_sendmsg+0xee/0x170
[ 2520.881899][   T73]      __sys_sendmsg+0xcd/0x170
[ 2520.881899][   T73]      do_syscall_64+0xc6/0x1e0
[ 2520.881899][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2520.881899][   T73] 
[ 2520.883465][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2520.883465][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2520.883465][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2520.883465][   T73]      ipv6_find_idev+0x102/0x170
[ 2520.883465][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2520.883465][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2520.883465][   T73]      netlink_rcv_skb+0x130/0x360
[ 2520.883465][   T73]      netlink_unicast+0x449/0x710
[ 2520.883465][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2520.883465][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2520.883465][   T73]      ___sys_sendmsg+0xee/0x170
[ 2520.883465][   T73]      __sys_sendmsg+0xcd/0x170
[ 2520.883465][   T73]      do_syscall_64+0xc6/0x1e0
[ 2520.883465][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2520.883465][   T73] 
[ 2520.885203][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2520.885620][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2520.885620][   T73]      netdev_get_by_index+0x5e/0x80
[ 2520.885620][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2520.885620][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2520.885620][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2520.885620][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2520.885620][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2520.885620][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2520.885620][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2520.885620][   T73]      addrconf_dad_begin+0x310/0x670
[ 2520.885620][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2520.885620][   T73]      process_one_work+0x84d/0x18a0
[ 2520.885620][   T73]      worker_thread+0x587/0xd30
[ 2520.885620][   T73]      kthread+0x28a/0x350
[ 2520.885620][   T73]      ret_from_fork+0x31/0x70
[ 2520.885620][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2520.885620][   T73] 
[ 2520.887546][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2520.887546][   T73]      netdev_get_by_index+0x5e/0x80
[ 2520.887546][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2520.887546][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2520.887546][   T73]      ip6_route_add+0x1c/0x140
[ 2520.887546][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2520.887546][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2520.887546][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2520.887546][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2520.887546][   T73]      netlink_rcv_skb+0x130/0x360
[ 2520.887546][   T73]      netlink_unicast+0x449/0x710
[ 2520.887546][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2520.887546][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2520.887546][   T73]      ___sys_sendmsg+0xee/0x170
[ 2520.887546][   T73]      __sys_sendmsg+0xcd/0x170
[ 2520.887546][   T73]      do_syscall_64+0xc6/0x1e0
[ 2520.887546][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2520.887546][   T73] 
[ 2520.889552][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2520.889552][   T73]      netdev_get_by_index+0x5e/0x80
[ 2520.889552][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2520.889552][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2520.889552][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2520.889552][   T73]      ipv6_add_addr+0x411/0x2000
[ 2520.889552][   T73]      inet6_addr_add+0x30e/0xa40
[ 2520.889552][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2520.889552][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2520.889552][   T73]      netlink_rcv_skb+0x130/0x360
[ 2520.889552][   T73]      netlink_unicast+0x449/0x710
[ 2520.889552][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2520.889552][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2520.889552][   T73]      ___sys_sendmsg+0xee/0x170
[ 2520.889552][   T73]      __sys_sendmsg+0xcd/0x170
[ 2520.889552][   T73]      do_syscall_64+0xc6/0x1e0
[ 2520.889552][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2520.889552][   T73] 
[ 2520.891558][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2520.891558][   T73]      netdev_get_by_index+0x5e/0x80
[ 2520.891558][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2520.891558][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2520.891558][   T73]      ip6_route_add+0x1c/0x140
[ 2520.891558][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2520.891558][   T73]      addrconf_add_dev+0xe2/0x170
[ 2520.891558][   T73]      inet6_addr_add+0x12f/0xa40
[ 2520.891558][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2520.891558][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2520.891558][   T73]      netlink_rcv_skb+0x130/0x360
[ 2520.891558][   T73]      netlink_unicast+0x449/0x710
[ 2520.891558][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2520.891558][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2520.891558][   T73]      ___sys_sendmsg+0xee/0x170
[ 2520.891558][   T73]      __sys_sendmsg+0xcd/0x170
[ 2520.891558][   T73]      do_syscall_64+0xc6/0x1e0
[ 2520.891558][   T73] 
[ 2520.893543][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2520.893543][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2520.893543][   T73]      ipv6_find_idev+0x102/0x170
[ 2520.893543][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2520.893543][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2520.893543][   T73]      netlink_rcv_skb+0x130/0x360
[ 2520.893543][   T73]      netlink_unicast+0x449/0x710
[ 2520.893543][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2520.893543][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2520.893543][   T73]      ___sys_sendmsg+0xee/0x170
[ 2520.893543][   T73]      __sys_sendmsg+0xcd/0x170
[ 2520.893543][   T73]      do_syscall_64+0xc6/0x1e0
[ 2520.893543][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2520.893543][   T73] 
[ 2520.895110][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2520.895110][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2520.895110][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2520.895110][   T73]      ipv6_find_idev+0x102/0x170
[ 2520.895110][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2520.895110][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2520.895110][   T73]      netlink_rcv_skb+0x130/0x360
[ 2520.895110][   T73]      netlink_unicast+0x449/0x710
[ 2520.895110][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2520.895110][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2520.895110][   T73]      ___sys_sendmsg+0xee/0x170
[ 2520.895110][   T73]      __sys_sendmsg+0xcd/0x170
[ 2520.895110][   T73]      do_syscall_64+0xc6/0x1e0
[ 2520.895110][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2520.895110][   T73] 
[ 2520.896814][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2520.897091][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2520.897091][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2520.897091][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2520.897091][   T73]      fib6_nh_init+0xa22/0x1580
[ 2520.897091][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2520.897091][   T73]      ip6_route_add+0x1c/0x140
[ 2520.897091][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2520.897091][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2520.897091][   T73]      netlink_rcv_skb+0x130/0x360
[ 2520.897091][   T73]      netlink_unicast+0x449/0x710
[ 2520.897091][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2520.897091][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2520.897091][   T73]      ___sys_sendmsg+0xee/0x170
[ 2520.897091][   T73]      __sys_sendmsg+0xcd/0x170
[ 2520.897091][   T73]      do_syscall_64+0xc6/0x1e0
[ 2520.897091][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2520.897091][   T73] 
[ 2520.899161][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2520.899161][   T73]      dst_init+0x84/0x4a0
[ 2520.899161][   T73]      dst_alloc+0x97/0x150
[ 2520.899161][   T73]      ip6_dst_alloc+0x23/0x90
[ 2520.899161][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2520.899161][   T73]      ip6_pol_route+0x56f/0x840
[ 2520.899161][   T73]      fib6_rule_lookup+0x456/0x630
[ 2520.899161][   T73]      ip6_route_input+0x59c/0xa50
[ 2520.899161][   T73]      ipv6_rcv+0x397/0x810
[ 2520.899161][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2520.899161][   T73]      process_backlog+0x101/0x620
[ 2520.899161][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2520.899161][   T73]      net_rx_action+0x495/0xbe0
[ 2520.899161][   T73]      __do_softirq+0x1b5/0x7f6
[ 2520.899161][   T73] 
[ 2520.901045][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2520.901045][   T73]      netdev_get_by_index+0x5e/0x80
[ 2520.901045][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2520.901045][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2520.901045][   T73]      ip6_route_add+0x1c/0x140
[ 2520.901045][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2520.901045][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2520.901045][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2520.901045][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2520.901045][   T73]      netlink_rcv_skb+0x130/0x360
[ 2520.901045][   T73]      netlink_unicast+0x449/0x710
[ 2520.901045][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2520.901045][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2520.901045][   T73]      ___sys_sendmsg+0xee/0x170
[ 2520.901045][   T73]      __sys_sendmsg+0xcd/0x170
[ 2520.901045][   T73]      do_syscall_64+0xc6/0x1e0
[ 2520.901045][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2520.901045][   T73] 
[ 2520.903305][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2520.903305][   T73]      netdev_get_by_index+0x5e/0x80
[ 2520.903305][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2520.903305][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2520.903305][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2520.903305][   T73]      ipv6_add_addr+0x411/0x2000
[ 2520.903305][   T73]      inet6_addr_add+0x30e/0xa40
[ 2520.903305][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2520.903305][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2520.903305][   T73]      netlink_rcv_skb+0x130/0x360
[ 2520.903305][   T73]      netlink_unicast+0x449/0x710
[ 2520.903305][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2520.903305][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2520.903305][   T73]      ___sys_sendmsg+0xee/0x170
[ 2520.903305][   T73]      __sys_sendmsg+0xcd/0x170
[ 2520.903305][   T73]      do_syscall_64+0xc6/0x1e0
[ 2520.903305][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2520.903305][   T73] 
[ 2520.905551][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2520.905551][   T73]      netdev_get_by_index+0x5e/0x80
[ 2520.905551][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2520.905551][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2520.905551][   T73]      ip6_route_add+0x1c/0x140
[ 2520.905551][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2520.905551][   T73]      addrconf_add_dev+0xe2/0x170
[ 2520.905551][   T73]      inet6_addr_add+0x12f/0xa40
[ 2520.905551][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2520.905551][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2520.905551][   T73]      netlink_rcv_skb+0x130/0x360
[ 2520.905551][   T73]      netlink_unicast+0x449/0x710
[ 2520.905551][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2520.905551][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2520.905551][   T73]      ___sys_sendmsg+0xee/0x170
[ 2520.905551][   T73]      __sys_sendmsg+0xcd/0x170
[ 2520.905551][   T73]      do_syscall_64+0xc6/0x1e0
[ 2520.905551][   T73] 
[ 2520.907767][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2520.907767][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2520.907767][   T73]      ipv6_find_idev+0x102/0x170
[ 2520.907767][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2520.907767][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2520.907767][   T73]      netlink_rcv_skb+0x130/0x360
[ 2520.907767][   T73]      netlink_unicast+0x449/0x710
[ 2520.907767][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2520.907767][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2520.907767][   T73]      ___sys_sendmsg+0xee/0x170
[ 2520.907767][   T73]      __sys_sendmsg+0xcd/0x170
[ 2520.907767][   T73]      do_syscall_64+0xc6/0x1e0
[ 2520.907767][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2520.907767][   T73] 
[ 2520.909501][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2520.909501][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2520.909501][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2520.909501][   T73]      ipv6_find_idev+0x102/0x170
[ 2520.909501][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2520.909501][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2520.909501][   T73]      netlink_rcv_skb+0x130/0x360
[ 2520.909501][   T73]      netlink_unicast+0x449/0x710
[ 2520.909501][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2520.909501][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2520.909501][   T73]      ___sys_sendmsg+0xee/0x170
[ 2520.909501][   T73]      __sys_sendmsg+0xcd/0x170
[ 2520.909501][   T73]      do_syscall_64+0xc6/0x1e0
[ 2520.909501][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2520.909501][   T73] 
[ 2520.911462][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2520.912183][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2520.912183][   T73]      netdev_get_by_index+0x5e/0x80
[ 2520.912183][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2520.912183][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2520.912183][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2520.912183][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2520.912183][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2520.912183][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2520.912183][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2520.912183][   T73]      addrconf_dad_begin+0x310/0x670
[ 2520.912183][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2520.912183][   T73]      process_one_work+0x84d/0x18a0
[ 2520.912183][   T73]      worker_thread+0x587/0xd30
[ 2520.912183][   T73]      kthread+0x28a/0x350
[ 2520.912183][   T73]      ret_from_fork+0x31/0x70
[ 2520.912183][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2520.912183][   T73] 
[ 2520.914110][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2520.914110][   T73]      netdev_get_by_index+0x5e/0x80
[ 2520.914110][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2520.914110][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2520.914110][   T73]      ip6_route_add+0x1c/0x140
[ 2520.914110][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2520.914110][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2520.914110][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2520.914110][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2520.914110][   T73]      netlink_rcv_skb+0x130/0x360
[ 2520.914110][   T73]      netlink_unicast+0x449/0x710
[ 2520.914110][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2520.914110][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2520.914110][   T73]      ___sys_sendmsg+0xee/0x170
[ 2520.914110][   T73]      __sys_sendmsg+0xcd/0x170
[ 2520.914110][   T73]      do_syscall_64+0xc6/0x1e0
[ 2520.914110][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2520.914110][   T73] 
[ 2520.916236][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2520.916236][   T73]      netdev_get_by_index+0x5e/0x80
[ 2520.916236][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2520.916236][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2520.916236][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2520.916236][   T73]      ipv6_add_addr+0x411/0x2000
[ 2520.916236][   T73]      inet6_addr_add+0x30e/0xa40
[ 2520.916236][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2520.916236][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2520.916236][   T73]      netlink_rcv_skb+0x130/0x360
[ 2520.916236][   T73]      netlink_unicast+0x449/0x710
[ 2520.916236][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2520.916236][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2520.916236][   T73]      ___sys_sendmsg+0xee/0x170
[ 2520.916236][   T73]      __sys_sendmsg+0xcd/0x170
[ 2520.916236][   T73]      do_syscall_64+0xc6/0x1e0
[ 2520.916236][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2520.916236][   T73] 
[ 2520.918516][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2520.918516][   T73]      netdev_get_by_index+0x5e/0x80
[ 2520.918516][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2520.918516][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2520.918516][   T73]      ip6_route_add+0x1c/0x140
[ 2520.918516][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2520.918516][   T73]      addrconf_add_dev+0xe2/0x170
[ 2520.918516][   T73]      inet6_addr_add+0x12f/0xa40
[ 2520.918516][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2520.918516][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2520.918516][   T73]      netlink_rcv_skb+0x130/0x360
[ 2520.918516][   T73]      netlink_unicast+0x449/0x710
[ 2520.918516][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2520.918516][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2520.918516][   T73]      ___sys_sendmsg+0xee/0x170
[ 2520.918516][   T73]      __sys_sendmsg+0xcd/0x170
[ 2520.918516][   T73]      do_syscall_64+0xc6/0x1e0
[ 2520.918516][   T73] 
[ 2520.920674][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2520.920674][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2520.920674][   T73]      ipv6_find_idev+0x102/0x170
[ 2520.920674][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2520.920674][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2520.920674][   T73]      netlink_rcv_skb+0x130/0x360
[ 2520.920674][   T73]      netlink_unicast+0x449/0x710
[ 2520.920674][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2520.920674][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2520.920674][   T73]      ___sys_sendmsg+0xee/0x170
[ 2520.920674][   T73]      __sys_sendmsg+0xcd/0x170
[ 2520.920674][   T73]      do_syscall_64+0xc6/0x1e0
[ 2520.920674][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2520.920674][   T73] 
[ 2520.922458][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2520.922458][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2520.922458][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2520.922458][   T73]      ipv6_find_idev+0x102/0x170
[ 2520.922458][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2520.922458][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2520.922458][   T73]      netlink_rcv_skb+0x130/0x360
[ 2520.922458][   T73]      netlink_unicast+0x449/0x710
[ 2520.922458][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2520.922458][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2520.922458][   T73]      ___sys_sendmsg+0xee/0x170
[ 2520.922458][   T73]      __sys_sendmsg+0xcd/0x170
[ 2520.922458][   T73]      do_syscall_64+0xc6/0x1e0
[ 2520.922458][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2520.922458][   T73] 
[ 2531.175822][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2531.176284][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2531.176284][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2531.176284][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2531.176284][   T73]      fib6_nh_init+0xa22/0x1580
[ 2531.176284][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2531.176284][   T73]      ip6_route_add+0x1c/0x140
[ 2531.176284][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2531.176284][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2531.176284][   T73]      netlink_rcv_skb+0x130/0x360
[ 2531.176284][   T73]      netlink_unicast+0x449/0x710
[ 2531.176284][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2531.176284][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2531.176284][   T73]      ___sys_sendmsg+0xee/0x170
[ 2531.176284][   T73]      __sys_sendmsg+0xcd/0x170
[ 2531.176284][   T73]      do_syscall_64+0xc6/0x1e0
[ 2531.176284][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2531.176284][   T73] 
[ 2531.178194][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2531.178194][   T73]      dst_init+0x84/0x4a0
[ 2531.178194][   T73]      dst_alloc+0x97/0x150
[ 2531.178194][   T73]      ip6_dst_alloc+0x23/0x90
[ 2531.178194][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2531.178194][   T73]      ip6_pol_route+0x56f/0x840
[ 2531.178194][   T73]      fib6_rule_lookup+0x456/0x630
[ 2531.178194][   T73]      ip6_route_input+0x59c/0xa50
[ 2531.178194][   T73]      ipv6_rcv+0x397/0x810
[ 2531.178194][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2531.178194][   T73]      process_backlog+0x101/0x620
[ 2531.178194][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2531.178194][   T73]      net_rx_action+0x495/0xbe0
[ 2531.178194][   T73]      __do_softirq+0x1b5/0x7f6
[ 2531.178194][   T73] 
[ 2531.179851][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2531.179851][   T73]      netdev_get_by_index+0x5e/0x80
[ 2531.179851][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2531.179851][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2531.179851][   T73]      ip6_route_add+0x1c/0x140
[ 2531.179851][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2531.179851][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2531.179851][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2531.179851][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2531.179851][   T73]      netlink_rcv_skb+0x130/0x360
[ 2531.179851][   T73]      netlink_unicast+0x449/0x710
[ 2531.179851][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2531.179851][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2531.179851][   T73]      ___sys_sendmsg+0xee/0x170
[ 2531.179851][   T73]      __sys_sendmsg+0xcd/0x170
[ 2531.179851][   T73]      do_syscall_64+0xc6/0x1e0
[ 2531.179851][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2531.179851][   T73] 
[ 2531.181866][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2531.181866][   T73]      netdev_get_by_index+0x5e/0x80
[ 2531.181866][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2531.181866][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2531.181866][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2531.181866][   T73]      ipv6_add_addr+0x411/0x2000
[ 2531.181866][   T73]      inet6_addr_add+0x30e/0xa40
[ 2531.181866][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2531.181866][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2531.181866][   T73]      netlink_rcv_skb+0x130/0x360
[ 2531.181866][   T73]      netlink_unicast+0x449/0x710
[ 2531.181866][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2531.181866][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2531.181866][   T73]      ___sys_sendmsg+0xee/0x170
[ 2531.181866][   T73]      __sys_sendmsg+0xcd/0x170
[ 2531.181866][   T73]      do_syscall_64+0xc6/0x1e0
[ 2531.181866][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2531.181866][   T73] 
[ 2531.183907][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2531.183907][   T73]      netdev_get_by_index+0x5e/0x80
[ 2531.183907][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2531.183907][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2531.183907][   T73]      ip6_route_add+0x1c/0x140
[ 2531.183907][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2531.183907][   T73]      addrconf_add_dev+0xe2/0x170
[ 2531.183907][   T73]      inet6_addr_add+0x12f/0xa40
[ 2531.183907][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2531.183907][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2531.183907][   T73]      netlink_rcv_skb+0x130/0x360
[ 2531.183907][   T73]      netlink_unicast+0x449/0x710
[ 2531.183907][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2531.183907][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2531.183907][   T73]      ___sys_sendmsg+0xee/0x170
[ 2531.183907][   T73]      __sys_sendmsg+0xcd/0x170
[ 2531.183907][   T73]      do_syscall_64+0xc6/0x1e0
[ 2531.183907][   T73] 
[ 2531.185893][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2531.185893][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2531.185893][   T73]      ipv6_find_idev+0x102/0x170
[ 2531.185893][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2531.185893][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2531.185893][   T73]      netlink_rcv_skb+0x130/0x360
[ 2531.185893][   T73]      netlink_unicast+0x449/0x710
[ 2531.185893][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2531.185893][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2531.185893][   T73]      ___sys_sendmsg+0xee/0x170
[ 2531.185893][   T73]      __sys_sendmsg+0xcd/0x170
[ 2531.185893][   T73]      do_syscall_64+0xc6/0x1e0
[ 2531.185893][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2531.185893][   T73] 
[ 2531.187455][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2531.187455][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2531.187455][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2531.187455][   T73]      ipv6_find_idev+0x102/0x170
[ 2531.187455][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2531.187455][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2531.187455][   T73]      netlink_rcv_skb+0x130/0x360
[ 2531.187455][   T73]      netlink_unicast+0x449/0x710
[ 2531.187455][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2531.187455][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2531.187455][   T73]      ___sys_sendmsg+0xee/0x170
[ 2531.187455][   T73]      __sys_sendmsg+0xcd/0x170
[ 2531.187455][   T73]      do_syscall_64+0xc6/0x1e0
[ 2531.187455][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2531.187455][   T73] 
[ 2531.189179][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2531.189464][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2531.189464][   T73]      netdev_get_by_index+0x5e/0x80
[ 2531.189464][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2531.189464][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2531.189464][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2531.189464][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2531.189464][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2531.189464][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2531.189464][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2531.189464][   T73]      addrconf_dad_begin+0x310/0x670
[ 2531.189464][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2531.189464][   T73]      process_one_work+0x84d/0x18a0
[ 2531.189464][   T73]      worker_thread+0x587/0xd30
[ 2531.189464][   T73]      kthread+0x28a/0x350
[ 2531.189464][   T73]      ret_from_fork+0x31/0x70
[ 2531.189464][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2531.189464][   T73] 
[ 2531.191392][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2531.191392][   T73]      netdev_get_by_index+0x5e/0x80
[ 2531.191392][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2531.191392][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2531.191392][   T73]      ip6_route_add+0x1c/0x140
[ 2531.191392][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2531.191392][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2531.191392][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2531.191392][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2531.191392][   T73]      netlink_rcv_skb+0x130/0x360
[ 2531.191392][   T73]      netlink_unicast+0x449/0x710
[ 2531.191392][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2531.191392][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2531.191392][   T73]      ___sys_sendmsg+0xee/0x170
[ 2531.191392][   T73]      __sys_sendmsg+0xcd/0x170
[ 2531.191392][   T73]      do_syscall_64+0xc6/0x1e0
[ 2531.191392][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2531.191392][   T73] 
[ 2531.193405][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2531.193405][   T73]      netdev_get_by_index+0x5e/0x80
[ 2531.193405][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2531.193405][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2531.193405][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2531.193405][   T73]      ipv6_add_addr+0x411/0x2000
[ 2531.193405][   T73]      inet6_addr_add+0x30e/0xa40
[ 2531.193405][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2531.193405][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2531.193405][   T73]      netlink_rcv_skb+0x130/0x360
[ 2531.193405][   T73]      netlink_unicast+0x449/0x710
[ 2531.193405][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2531.193405][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2531.193405][   T73]      ___sys_sendmsg+0xee/0x170
[ 2531.193405][   T73]      __sys_sendmsg+0xcd/0x170
[ 2531.193405][   T73]      do_syscall_64+0xc6/0x1e0
[ 2531.193405][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2531.193405][   T73] 
[ 2531.195416][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2531.195416][   T73]      netdev_get_by_index+0x5e/0x80
[ 2531.195416][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2531.195416][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2531.195416][   T73]      ip6_route_add+0x1c/0x140
[ 2531.195416][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2531.195416][   T73]      addrconf_add_dev+0xe2/0x170
[ 2531.195416][   T73]      inet6_addr_add+0x12f/0xa40
[ 2531.195416][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2531.195416][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2531.195416][   T73]      netlink_rcv_skb+0x130/0x360
[ 2531.195416][   T73]      netlink_unicast+0x449/0x710
[ 2531.195416][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2531.195416][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2531.195416][   T73]      ___sys_sendmsg+0xee/0x170
[ 2531.195416][   T73]      __sys_sendmsg+0xcd/0x170
[ 2531.195416][   T73]      do_syscall_64+0xc6/0x1e0
[ 2531.195416][   T73] 
[ 2531.197379][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2531.197379][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2531.197379][   T73]      ipv6_find_idev+0x102/0x170
[ 2531.197379][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2531.197379][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2531.197379][   T73]      netlink_rcv_skb+0x130/0x360
[ 2531.197379][   T73]      netlink_unicast+0x449/0x710
[ 2531.197379][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2531.197379][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2531.197379][   T73]      ___sys_sendmsg+0xee/0x170
[ 2531.197379][   T73]      __sys_sendmsg+0xcd/0x170
[ 2531.197379][   T73]      do_syscall_64+0xc6/0x1e0
[ 2531.197379][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2531.197379][   T73] 
[ 2531.198923][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2531.198923][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2531.198923][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2531.198923][   T73]      ipv6_find_idev+0x102/0x170
[ 2531.198923][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2531.198923][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2531.198923][   T73]      netlink_rcv_skb+0x130/0x360
[ 2531.198923][   T73]      netlink_unicast+0x449/0x710
[ 2531.198923][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2531.198923][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2531.198923][   T73]      ___sys_sendmsg+0xee/0x170
[ 2531.198923][   T73]      __sys_sendmsg+0xcd/0x170
[ 2531.198923][   T73]      do_syscall_64+0xc6/0x1e0
[ 2531.198923][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2531.198923][   T73] 
[ 2531.200624][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2531.200905][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2531.200905][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2531.200905][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2531.200905][   T73]      fib6_nh_init+0xa22/0x1580
[ 2531.200905][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2531.200905][   T73]      ip6_route_add+0x1c/0x140
[ 2531.200905][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2531.200905][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2531.200905][   T73]      netlink_rcv_skb+0x130/0x360
[ 2531.200905][   T73]      netlink_unicast+0x449/0x710
[ 2531.200905][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2531.200905][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2531.200905][   T73]      ___sys_sendmsg+0xee/0x170
[ 2531.200905][   T73]      __sys_sendmsg+0xcd/0x170
[ 2531.200905][   T73]      do_syscall_64+0xc6/0x1e0
[ 2531.200905][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2531.200905][   T73] 
[ 2531.202989][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2531.202989][   T73]      dst_init+0x84/0x4a0
[ 2531.202989][   T73]      dst_alloc+0x97/0x150
[ 2531.202989][   T73]      ip6_dst_alloc+0x23/0x90
[ 2531.202989][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2531.202989][   T73]      ip6_pol_route+0x56f/0x840
[ 2531.202989][   T73]      fib6_rule_lookup+0x456/0x630
[ 2531.202989][   T73]      ip6_route_input+0x59c/0xa50
[ 2531.202989][   T73]      ipv6_rcv+0x397/0x810
[ 2531.202989][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2531.202989][   T73]      process_backlog+0x101/0x620
[ 2531.202989][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2531.202989][   T73]      net_rx_action+0x495/0xbe0
[ 2531.202989][   T73]      __do_softirq+0x1b5/0x7f6
[ 2531.202989][   T73] 
[ 2531.204872][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2531.204872][   T73]      netdev_get_by_index+0x5e/0x80
[ 2531.204872][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2531.204872][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2531.204872][   T73]      ip6_route_add+0x1c/0x140
[ 2531.204872][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2531.204872][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2531.204872][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2531.204872][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2531.204872][   T73]      netlink_rcv_skb+0x130/0x360
[ 2531.204872][   T73]      netlink_unicast+0x449/0x710
[ 2531.204872][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2531.204872][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2531.204872][   T73]      ___sys_sendmsg+0xee/0x170
[ 2531.204872][   T73]      __sys_sendmsg+0xcd/0x170
[ 2531.204872][   T73]      do_syscall_64+0xc6/0x1e0
[ 2531.204872][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2531.204872][   T73] 
[ 2531.207136][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2531.207136][   T73]      netdev_get_by_index+0x5e/0x80
[ 2531.207136][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2531.207136][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2531.207136][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2531.207136][   T73]      ipv6_add_addr+0x411/0x2000
[ 2531.207136][   T73]      inet6_addr_add+0x30e/0xa40
[ 2531.207136][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2531.207136][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2531.207136][   T73]      netlink_rcv_skb+0x130/0x360
[ 2531.207136][   T73]      netlink_unicast+0x449/0x710
[ 2531.207136][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2531.207136][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2531.207136][   T73]      ___sys_sendmsg+0xee/0x170
[ 2531.207136][   T73]      __sys_sendmsg+0xcd/0x170
[ 2531.207136][   T73]      do_syscall_64+0xc6/0x1e0
[ 2531.207136][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2531.207136][   T73] 
[ 2531.209388][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2531.209388][   T73]      netdev_get_by_index+0x5e/0x80
[ 2531.209388][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2531.209388][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2531.209388][   T73]      ip6_route_add+0x1c/0x140
[ 2531.209388][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2531.209388][   T73]      addrconf_add_dev+0xe2/0x170
[ 2531.209388][   T73]      inet6_addr_add+0x12f/0xa40
[ 2531.209388][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2531.209388][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2531.209388][   T73]      netlink_rcv_skb+0x130/0x360
[ 2531.209388][   T73]      netlink_unicast+0x449/0x710
[ 2531.209388][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2531.209388][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2531.209388][   T73]      ___sys_sendmsg+0xee/0x170
[ 2531.209388][   T73]      __sys_sendmsg+0xcd/0x170
[ 2531.209388][   T73]      do_syscall_64+0xc6/0x1e0
[ 2531.209388][   T73] 
[ 2531.211598][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2531.211598][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2531.211598][   T73]      ipv6_find_idev+0x102/0x170
[ 2531.211598][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2531.211598][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2531.211598][   T73]      netlink_rcv_skb+0x130/0x360
[ 2531.211598][   T73]      netlink_unicast+0x449/0x710
[ 2531.211598][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2531.211598][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2531.211598][   T73]      ___sys_sendmsg+0xee/0x170
[ 2531.211598][   T73]      __sys_sendmsg+0xcd/0x170
[ 2531.211598][   T73]      do_syscall_64+0xc6/0x1e0
[ 2531.211598][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2531.211598][   T73] 
[ 2531.213343][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2531.213343][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2531.213343][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2531.213343][   T73]      ipv6_find_idev+0x102/0x170
[ 2531.213343][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2531.213343][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2531.213343][   T73]      netlink_rcv_skb+0x130/0x360
[ 2531.213343][   T73]      netlink_unicast+0x449/0x710
[ 2531.213343][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2531.213343][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2531.213343][   T73]      ___sys_sendmsg+0xee/0x170
[ 2531.213343][   T73]      __sys_sendmsg+0xcd/0x170
[ 2531.213343][   T73]      do_syscall_64+0xc6/0x1e0
[ 2531.213343][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2531.213343][   T73] 
[ 2531.215847][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2531.216128][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2531.216128][   T73]      netdev_get_by_index+0x5e/0x80
[ 2531.216128][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2531.216128][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2531.216128][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2531.216128][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2531.216128][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2531.216128][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2531.216128][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2531.216128][   T73]      addrconf_dad_begin+0x310/0x670
[ 2531.216128][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2531.216128][   T73]      process_one_work+0x84d/0x18a0
[ 2531.216128][   T73]      worker_thread+0x587/0xd30
[ 2531.216128][   T73]      kthread+0x28a/0x350
[ 2531.216128][   T73]      ret_from_fork+0x31/0x70
[ 2531.216128][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2531.216128][   T73] 
[ 2531.218301][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2531.218301][   T73]      netdev_get_by_index+0x5e/0x80
[ 2531.218301][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2531.218301][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2531.218301][   T73]      ip6_route_add+0x1c/0x140
[ 2531.218301][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2531.218301][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2531.218301][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2531.218301][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2531.218301][   T73]      netlink_rcv_skb+0x130/0x360
[ 2531.218301][   T73]      netlink_unicast+0x449/0x710
[ 2531.218301][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2531.218301][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2531.218301][   T73]      ___sys_sendmsg+0xee/0x170
[ 2531.218301][   T73]      __sys_sendmsg+0xcd/0x170
[ 2531.218301][   T73]      do_syscall_64+0xc6/0x1e0
[ 2531.218301][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2531.218301][   T73] 
[ 2531.220559][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2531.220559][   T73]      netdev_get_by_index+0x5e/0x80
[ 2531.220559][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2531.220559][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2531.220559][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2531.220559][   T73]      ipv6_add_addr+0x411/0x2000
[ 2531.220559][   T73]      inet6_addr_add+0x30e/0xa40
[ 2531.220559][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2531.220559][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2531.220559][   T73]      netlink_rcv_skb+0x130/0x360
[ 2531.220559][   T73]      netlink_unicast+0x449/0x710
[ 2531.220559][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2531.220559][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2531.220559][   T73]      ___sys_sendmsg+0xee/0x170
[ 2531.220559][   T73]      __sys_sendmsg+0xcd/0x170
[ 2531.220559][   T73]      do_syscall_64+0xc6/0x1e0
[ 2531.220559][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2531.220559][   T73] 
[ 2531.222750][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2531.222750][   T73]      netdev_get_by_index+0x5e/0x80
[ 2531.222750][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2531.222750][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2531.222750][   T73]      ip6_route_add+0x1c/0x140
[ 2531.222750][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2531.222750][   T73]      addrconf_add_dev+0xe2/0x170
[ 2531.222750][   T73]      inet6_addr_add+0x12f/0xa40
[ 2531.222750][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2531.222750][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2531.222750][   T73]      netlink_rcv_skb+0x130/0x360
[ 2531.222750][   T73]      netlink_unicast+0x449/0x710
[ 2531.222750][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2531.222750][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2531.222750][   T73]      ___sys_sendmsg+0xee/0x170
[ 2531.222750][   T73]      __sys_sendmsg+0xcd/0x170
[ 2531.222750][   T73]      do_syscall_64+0xc6/0x1e0
[ 2531.222750][   T73] 
[ 2531.225028][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2531.225028][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2531.225028][   T73]      ipv6_find_idev+0x102/0x170
[ 2531.225028][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2531.225028][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2531.225028][   T73]      netlink_rcv_skb+0x130/0x360
[ 2531.225028][   T73]      netlink_unicast+0x449/0x710
[ 2531.225028][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2531.225028][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2531.225028][   T73]      ___sys_sendmsg+0xee/0x170
[ 2531.225028][   T73]      __sys_sendmsg+0xcd/0x170
[ 2531.225028][   T73]      do_syscall_64+0xc6/0x1e0
[ 2531.225028][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2531.225028][   T73] 
[ 2531.226759][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2531.226759][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2531.226759][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2531.226759][   T73]      ipv6_find_idev+0x102/0x170
[ 2531.226759][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2531.226759][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2531.226759][   T73]      netlink_rcv_skb+0x130/0x360
[ 2531.226759][   T73]      netlink_unicast+0x449/0x710
[ 2531.226759][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2531.226759][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2531.226759][   T73]      ___sys_sendmsg+0xee/0x170
[ 2531.226759][   T73]      __sys_sendmsg+0xcd/0x170
[ 2531.226759][   T73]      do_syscall_64+0xc6/0x1e0
[ 2531.226759][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2531.226759][   T73] 
[ 2541.479824][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2541.480264][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2541.480264][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2541.480264][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2541.480264][   T73]      fib6_nh_init+0xa22/0x1580
[ 2541.480264][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2541.480264][   T73]      ip6_route_add+0x1c/0x140
[ 2541.480264][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2541.480264][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2541.480264][   T73]      netlink_rcv_skb+0x130/0x360
[ 2541.480264][   T73]      netlink_unicast+0x449/0x710
[ 2541.480264][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2541.480264][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2541.480264][   T73]      ___sys_sendmsg+0xee/0x170
[ 2541.480264][   T73]      __sys_sendmsg+0xcd/0x170
[ 2541.480264][   T73]      do_syscall_64+0xc6/0x1e0
[ 2541.480264][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2541.480264][   T73] 
[ 2541.482151][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2541.482151][   T73]      dst_init+0x84/0x4a0
[ 2541.482151][   T73]      dst_alloc+0x97/0x150
[ 2541.482151][   T73]      ip6_dst_alloc+0x23/0x90
[ 2541.482151][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2541.482151][   T73]      ip6_pol_route+0x56f/0x840
[ 2541.482151][   T73]      fib6_rule_lookup+0x456/0x630
[ 2541.482151][   T73]      ip6_route_input+0x59c/0xa50
[ 2541.482151][   T73]      ipv6_rcv+0x397/0x810
[ 2541.482151][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2541.482151][   T73]      process_backlog+0x101/0x620
[ 2541.482151][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2541.482151][   T73]      net_rx_action+0x495/0xbe0
[ 2541.482151][   T73]      __do_softirq+0x1b5/0x7f6
[ 2541.482151][   T73] 
[ 2541.483799][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2541.483799][   T73]      netdev_get_by_index+0x5e/0x80
[ 2541.483799][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2541.483799][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2541.483799][   T73]      ip6_route_add+0x1c/0x140
[ 2541.483799][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2541.483799][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2541.483799][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2541.483799][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2541.483799][   T73]      netlink_rcv_skb+0x130/0x360
[ 2541.483799][   T73]      netlink_unicast+0x449/0x710
[ 2541.483799][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2541.483799][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2541.483799][   T73]      ___sys_sendmsg+0xee/0x170
[ 2541.483799][   T73]      __sys_sendmsg+0xcd/0x170
[ 2541.483799][   T73]      do_syscall_64+0xc6/0x1e0
[ 2541.483799][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2541.483799][   T73] 
[ 2541.485790][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2541.485790][   T73]      netdev_get_by_index+0x5e/0x80
[ 2541.485790][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2541.485790][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2541.485790][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2541.485790][   T73]      ipv6_add_addr+0x411/0x2000
[ 2541.485790][   T73]      inet6_addr_add+0x30e/0xa40
[ 2541.485790][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2541.485790][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2541.485790][   T73]      netlink_rcv_skb+0x130/0x360
[ 2541.485790][   T73]      netlink_unicast+0x449/0x710
[ 2541.485790][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2541.485790][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2541.485790][   T73]      ___sys_sendmsg+0xee/0x170
[ 2541.485790][   T73]      __sys_sendmsg+0xcd/0x170
[ 2541.485790][   T73]      do_syscall_64+0xc6/0x1e0
[ 2541.485790][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2541.485790][   T73] 
[ 2541.487777][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2541.487777][   T73]      netdev_get_by_index+0x5e/0x80
[ 2541.487777][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2541.487777][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2541.487777][   T73]      ip6_route_add+0x1c/0x140
[ 2541.487777][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2541.487777][   T73]      addrconf_add_dev+0xe2/0x170
[ 2541.487777][   T73]      inet6_addr_add+0x12f/0xa40
[ 2541.487777][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2541.487777][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2541.487777][   T73]      netlink_rcv_skb+0x130/0x360
[ 2541.487777][   T73]      netlink_unicast+0x449/0x710
[ 2541.487777][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2541.487777][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2541.487777][   T73]      ___sys_sendmsg+0xee/0x170
[ 2541.487777][   T73]      __sys_sendmsg+0xcd/0x170
[ 2541.487777][   T73]      do_syscall_64+0xc6/0x1e0
[ 2541.487777][   T73] 
[ 2541.489736][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2541.489736][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2541.489736][   T73]      ipv6_find_idev+0x102/0x170
[ 2541.489736][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2541.489736][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2541.489736][   T73]      netlink_rcv_skb+0x130/0x360
[ 2541.489736][   T73]      netlink_unicast+0x449/0x710
[ 2541.489736][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2541.489736][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2541.489736][   T73]      ___sys_sendmsg+0xee/0x170
[ 2541.489736][   T73]      __sys_sendmsg+0xcd/0x170
[ 2541.489736][   T73]      do_syscall_64+0xc6/0x1e0
[ 2541.489736][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2541.489736][   T73] 
[ 2541.491267][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2541.491267][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2541.491267][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2541.491267][   T73]      ipv6_find_idev+0x102/0x170
[ 2541.491267][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2541.491267][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2541.491267][   T73]      netlink_rcv_skb+0x130/0x360
[ 2541.491267][   T73]      netlink_unicast+0x449/0x710
[ 2541.491267][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2541.491267][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2541.491267][   T73]      ___sys_sendmsg+0xee/0x170
[ 2541.491267][   T73]      __sys_sendmsg+0xcd/0x170
[ 2541.491267][   T73]      do_syscall_64+0xc6/0x1e0
[ 2541.491267][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2541.491267][   T73] 
[ 2541.492961][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2541.493331][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2541.493331][   T73]      netdev_get_by_index+0x5e/0x80
[ 2541.493331][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2541.493331][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2541.493331][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2541.493331][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2541.493331][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2541.493331][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2541.493331][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2541.493331][   T73]      addrconf_dad_begin+0x310/0x670
[ 2541.493331][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2541.493331][   T73]      process_one_work+0x84d/0x18a0
[ 2541.493331][   T73]      worker_thread+0x587/0xd30
[ 2541.493331][   T73]      kthread+0x28a/0x350
[ 2541.493331][   T73]      ret_from_fork+0x31/0x70
[ 2541.493331][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2541.493331][   T73] 
[ 2541.496152][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2541.496152][   T73]      netdev_get_by_index+0x5e/0x80
[ 2541.496152][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2541.496152][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2541.496152][   T73]      ip6_route_add+0x1c/0x140
[ 2541.496152][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2541.496152][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2541.496152][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2541.496152][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2541.496152][   T73]      netlink_rcv_skb+0x130/0x360
[ 2541.496152][   T73]      netlink_unicast+0x449/0x710
[ 2541.496152][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2541.496152][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2541.496152][   T73]      ___sys_sendmsg+0xee/0x170
[ 2541.496152][   T73]      __sys_sendmsg+0xcd/0x170
[ 2541.496152][   T73]      do_syscall_64+0xc6/0x1e0
[ 2541.496152][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2541.496152][   T73] 
[ 2541.498151][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2541.498151][   T73]      netdev_get_by_index+0x5e/0x80
[ 2541.498151][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2541.498151][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2541.498151][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2541.498151][   T73]      ipv6_add_addr+0x411/0x2000
[ 2541.498151][   T73]      inet6_addr_add+0x30e/0xa40
[ 2541.498151][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2541.498151][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2541.498151][   T73]      netlink_rcv_skb+0x130/0x360
[ 2541.498151][   T73]      netlink_unicast+0x449/0x710
[ 2541.498151][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2541.498151][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2541.498151][   T73]      ___sys_sendmsg+0xee/0x170
[ 2541.498151][   T73]      __sys_sendmsg+0xcd/0x170
[ 2541.498151][   T73]      do_syscall_64+0xc6/0x1e0
[ 2541.498151][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2541.498151][   T73] 
[ 2541.500145][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2541.500145][   T73]      netdev_get_by_index+0x5e/0x80
[ 2541.500145][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2541.500145][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2541.500145][   T73]      ip6_route_add+0x1c/0x140
[ 2541.500145][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2541.500145][   T73]      addrconf_add_dev+0xe2/0x170
[ 2541.500145][   T73]      inet6_addr_add+0x12f/0xa40
[ 2541.500145][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2541.500145][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2541.500145][   T73]      netlink_rcv_skb+0x130/0x360
[ 2541.500145][   T73]      netlink_unicast+0x449/0x710
[ 2541.500145][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2541.500145][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2541.500145][   T73]      ___sys_sendmsg+0xee/0x170
[ 2541.500145][   T73]      __sys_sendmsg+0xcd/0x170
[ 2541.500145][   T73]      do_syscall_64+0xc6/0x1e0
[ 2541.500145][   T73] 
[ 2541.502109][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2541.502109][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2541.502109][   T73]      ipv6_find_idev+0x102/0x170
[ 2541.502109][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2541.502109][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2541.502109][   T73]      netlink_rcv_skb+0x130/0x360
[ 2541.502109][   T73]      netlink_unicast+0x449/0x710
[ 2541.502109][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2541.502109][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2541.502109][   T73]      ___sys_sendmsg+0xee/0x170
[ 2541.502109][   T73]      __sys_sendmsg+0xcd/0x170
[ 2541.502109][   T73]      do_syscall_64+0xc6/0x1e0
[ 2541.502109][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2541.502109][   T73] 
[ 2541.503668][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2541.503668][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2541.503668][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2541.503668][   T73]      ipv6_find_idev+0x102/0x170
[ 2541.503668][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2541.503668][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2541.503668][   T73]      netlink_rcv_skb+0x130/0x360
[ 2541.503668][   T73]      netlink_unicast+0x449/0x710
[ 2541.503668][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2541.503668][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2541.503668][   T73]      ___sys_sendmsg+0xee/0x170
[ 2541.503668][   T73]      __sys_sendmsg+0xcd/0x170
[ 2541.503668][   T73]      do_syscall_64+0xc6/0x1e0
[ 2541.503668][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2541.503668][   T73] 
[ 2541.505362][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2541.505630][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2541.505630][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2541.505630][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2541.505630][   T73]      fib6_nh_init+0xa22/0x1580
[ 2541.505630][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2541.505630][   T73]      ip6_route_add+0x1c/0x140
[ 2541.505630][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2541.505630][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2541.505630][   T73]      netlink_rcv_skb+0x130/0x360
[ 2541.505630][   T73]      netlink_unicast+0x449/0x710
[ 2541.505630][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2541.505630][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2541.505630][   T73]      ___sys_sendmsg+0xee/0x170
[ 2541.505630][   T73]      __sys_sendmsg+0xcd/0x170
[ 2541.505630][   T73]      do_syscall_64+0xc6/0x1e0
[ 2541.505630][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2541.505630][   T73] 
[ 2541.507625][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2541.507625][   T73]      dst_init+0x84/0x4a0
[ 2541.507625][   T73]      dst_alloc+0x97/0x150
[ 2541.507625][   T73]      ip6_dst_alloc+0x23/0x90
[ 2541.507625][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2541.507625][   T73]      ip6_pol_route+0x56f/0x840
[ 2541.507625][   T73]      fib6_rule_lookup+0x456/0x630
[ 2541.507625][   T73]      ip6_route_input+0x59c/0xa50
[ 2541.507625][   T73]      ipv6_rcv+0x397/0x810
[ 2541.507625][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2541.507625][   T73]      process_backlog+0x101/0x620
[ 2541.507625][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2541.507625][   T73]      net_rx_action+0x495/0xbe0
[ 2541.507625][   T73]      __do_softirq+0x1b5/0x7f6
[ 2541.507625][   T73] 
[ 2541.509503][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2541.509503][   T73]      netdev_get_by_index+0x5e/0x80
[ 2541.509503][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2541.509503][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2541.509503][   T73]      ip6_route_add+0x1c/0x140
[ 2541.509503][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2541.509503][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2541.509503][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2541.509503][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2541.509503][   T73]      netlink_rcv_skb+0x130/0x360
[ 2541.509503][   T73]      netlink_unicast+0x449/0x710
[ 2541.509503][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2541.509503][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2541.509503][   T73]      ___sys_sendmsg+0xee/0x170
[ 2541.509503][   T73]      __sys_sendmsg+0xcd/0x170
[ 2541.509503][   T73]      do_syscall_64+0xc6/0x1e0
[ 2541.509503][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2541.509503][   T73] 
[ 2541.511739][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2541.511739][   T73]      netdev_get_by_index+0x5e/0x80
[ 2541.511739][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2541.511739][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2541.511739][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2541.511739][   T73]      ipv6_add_addr+0x411/0x2000
[ 2541.511739][   T73]      inet6_addr_add+0x30e/0xa40
[ 2541.511739][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2541.511739][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2541.511739][   T73]      netlink_rcv_skb+0x130/0x360
[ 2541.511739][   T73]      netlink_unicast+0x449/0x710
[ 2541.511739][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2541.511739][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2541.511739][   T73]      ___sys_sendmsg+0xee/0x170
[ 2541.511739][   T73]      __sys_sendmsg+0xcd/0x170
[ 2541.511739][   T73]      do_syscall_64+0xc6/0x1e0
[ 2541.511739][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2541.511739][   T73] 
[ 2541.513984][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2541.513984][   T73]      netdev_get_by_index+0x5e/0x80
[ 2541.513984][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2541.513984][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2541.513984][   T73]      ip6_route_add+0x1c/0x140
[ 2541.513984][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2541.513984][   T73]      addrconf_add_dev+0xe2/0x170
[ 2541.513984][   T73]      inet6_addr_add+0x12f/0xa40
[ 2541.513984][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2541.513984][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2541.513984][   T73]      netlink_rcv_skb+0x130/0x360
[ 2541.513984][   T73]      netlink_unicast+0x449/0x710
[ 2541.513984][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2541.513984][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2541.513984][   T73]      ___sys_sendmsg+0xee/0x170
[ 2541.513984][   T73]      __sys_sendmsg+0xcd/0x170
[ 2541.513984][   T73]      do_syscall_64+0xc6/0x1e0
[ 2541.513984][   T73] 
[ 2541.516278][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2541.516278][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2541.516278][   T73]      ipv6_find_idev+0x102/0x170
[ 2541.516278][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2541.516278][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2541.516278][   T73]      netlink_rcv_skb+0x130/0x360
[ 2541.516278][   T73]      netlink_unicast+0x449/0x710
[ 2541.516278][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2541.516278][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2541.516278][   T73]      ___sys_sendmsg+0xee/0x170
[ 2541.516278][   T73]      __sys_sendmsg+0xcd/0x170
[ 2541.516278][   T73]      do_syscall_64+0xc6/0x1e0
[ 2541.516278][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2541.516278][   T73] 
[ 2541.518053][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2541.518053][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2541.518053][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2541.518053][   T73]      ipv6_find_idev+0x102/0x170
[ 2541.518053][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2541.518053][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2541.518053][   T73]      netlink_rcv_skb+0x130/0x360
[ 2541.518053][   T73]      netlink_unicast+0x449/0x710
[ 2541.518053][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2541.518053][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2541.518053][   T73]      ___sys_sendmsg+0xee/0x170
[ 2541.518053][   T73]      __sys_sendmsg+0xcd/0x170
[ 2541.518053][   T73]      do_syscall_64+0xc6/0x1e0
[ 2541.518053][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2541.518053][   T73] 
[ 2541.520329][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2541.520620][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2541.520620][   T73]      netdev_get_by_index+0x5e/0x80
[ 2541.520620][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2541.520620][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2541.520620][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2541.520620][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2541.520620][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2541.520620][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2541.520620][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2541.520620][   T73]      addrconf_dad_begin+0x310/0x670
[ 2541.520620][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2541.520620][   T73]      process_one_work+0x84d/0x18a0
[ 2541.520620][   T73]      worker_thread+0x587/0xd30
[ 2541.520620][   T73]      kthread+0x28a/0x350
[ 2541.520620][   T73]      ret_from_fork+0x31/0x70
[ 2541.520620][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2541.520620][   T73] 
[ 2541.522768][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2541.522768][   T73]      netdev_get_by_index+0x5e/0x80
[ 2541.522768][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2541.522768][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2541.522768][   T73]      ip6_route_add+0x1c/0x140
[ 2541.522768][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2541.522768][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2541.522768][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2541.522768][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2541.522768][   T73]      netlink_rcv_skb+0x130/0x360
[ 2541.522768][   T73]      netlink_unicast+0x449/0x710
[ 2541.522768][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2541.522768][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2541.522768][   T73]      ___sys_sendmsg+0xee/0x170
[ 2541.522768][   T73]      __sys_sendmsg+0xcd/0x170
[ 2541.522768][   T73]      do_syscall_64+0xc6/0x1e0
[ 2541.522768][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2541.522768][   T73] 
[ 2541.525002][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2541.525002][   T73]      netdev_get_by_index+0x5e/0x80
[ 2541.525002][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2541.525002][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2541.525002][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2541.525002][   T73]      ipv6_add_addr+0x411/0x2000
[ 2541.525002][   T73]      inet6_addr_add+0x30e/0xa40
[ 2541.525002][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2541.525002][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2541.525002][   T73]      netlink_rcv_skb+0x130/0x360
[ 2541.525002][   T73]      netlink_unicast+0x449/0x710
[ 2541.525002][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2541.525002][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2541.525002][   T73]      ___sys_sendmsg+0xee/0x170
[ 2541.525002][   T73]      __sys_sendmsg+0xcd/0x170
[ 2541.525002][   T73]      do_syscall_64+0xc6/0x1e0
[ 2541.525002][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2541.525002][   T73] 
[ 2541.527236][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2541.527236][   T73]      netdev_get_by_index+0x5e/0x80
[ 2541.527236][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2541.527236][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2541.527236][   T73]      ip6_route_add+0x1c/0x140
[ 2541.527236][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2541.527236][   T73]      addrconf_add_dev+0xe2/0x170
[ 2541.527236][   T73]      inet6_addr_add+0x12f/0xa40
[ 2541.527236][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2541.527236][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2541.527236][   T73]      netlink_rcv_skb+0x130/0x360
[ 2541.527236][   T73]      netlink_unicast+0x449/0x710
[ 2541.527236][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2541.527236][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2541.527236][   T73]      ___sys_sendmsg+0xee/0x170
[ 2541.527236][   T73]      __sys_sendmsg+0xcd/0x170
[ 2541.527236][   T73]      do_syscall_64+0xc6/0x1e0
[ 2541.527236][   T73] 
[ 2541.529425][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2541.529425][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2541.529425][   T73]      ipv6_find_idev+0x102/0x170
[ 2541.529425][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2541.529425][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2541.529425][   T73]      netlink_rcv_skb+0x130/0x360
[ 2541.529425][   T73]      netlink_unicast+0x449/0x710
[ 2541.529425][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2541.529425][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2541.529425][   T73]      ___sys_sendmsg+0xee/0x170
[ 2541.529425][   T73]      __sys_sendmsg+0xcd/0x170
[ 2541.529425][   T73]      do_syscall_64+0xc6/0x1e0
[ 2541.529425][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2541.529425][   T73] 
[ 2541.531274][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2541.531274][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2541.531274][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2541.531274][   T73]      ipv6_find_idev+0x102/0x170
[ 2541.531274][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2541.531274][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2541.531274][   T73]      netlink_rcv_skb+0x130/0x360
[ 2541.531274][   T73]      netlink_unicast+0x449/0x710
[ 2541.531274][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2541.531274][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2541.531274][   T73]      ___sys_sendmsg+0xee/0x170
[ 2541.531274][   T73]      __sys_sendmsg+0xcd/0x170
[ 2541.531274][   T73]      do_syscall_64+0xc6/0x1e0
[ 2541.531274][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2541.531274][   T73] 
[ 2551.735829][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2551.736328][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2551.736328][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2551.736328][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2551.736328][   T73]      fib6_nh_init+0xa22/0x1580
[ 2551.736328][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2551.736328][   T73]      ip6_route_add+0x1c/0x140
[ 2551.736328][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2551.736328][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2551.736328][   T73]      netlink_rcv_skb+0x130/0x360
[ 2551.736328][   T73]      netlink_unicast+0x449/0x710
[ 2551.736328][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2551.736328][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2551.736328][   T73]      ___sys_sendmsg+0xee/0x170
[ 2551.736328][   T73]      __sys_sendmsg+0xcd/0x170
[ 2551.736328][   T73]      do_syscall_64+0xc6/0x1e0
[ 2551.736328][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2551.736328][   T73] 
[ 2551.738246][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2551.738246][   T73]      dst_init+0x84/0x4a0
[ 2551.738246][   T73]      dst_alloc+0x97/0x150
[ 2551.738246][   T73]      ip6_dst_alloc+0x23/0x90
[ 2551.738246][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2551.738246][   T73]      ip6_pol_route+0x56f/0x840
[ 2551.738246][   T73]      fib6_rule_lookup+0x456/0x630
[ 2551.738246][   T73]      ip6_route_input+0x59c/0xa50
[ 2551.738246][   T73]      ipv6_rcv+0x397/0x810
[ 2551.738246][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2551.738246][   T73]      process_backlog+0x101/0x620
[ 2551.738246][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2551.738246][   T73]      net_rx_action+0x495/0xbe0
[ 2551.738246][   T73]      __do_softirq+0x1b5/0x7f6
[ 2551.738246][   T73] 
[ 2551.739894][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2551.739894][   T73]      netdev_get_by_index+0x5e/0x80
[ 2551.739894][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2551.739894][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2551.739894][   T73]      ip6_route_add+0x1c/0x140
[ 2551.739894][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2551.739894][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2551.739894][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2551.739894][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2551.739894][   T73]      netlink_rcv_skb+0x130/0x360
[ 2551.739894][   T73]      netlink_unicast+0x449/0x710
[ 2551.739894][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2551.739894][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2551.739894][   T73]      ___sys_sendmsg+0xee/0x170
[ 2551.739894][   T73]      __sys_sendmsg+0xcd/0x170
[ 2551.739894][   T73]      do_syscall_64+0xc6/0x1e0
[ 2551.739894][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2551.739894][   T73] 
[ 2551.741891][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2551.741891][   T73]      netdev_get_by_index+0x5e/0x80
[ 2551.741891][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2551.741891][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2551.741891][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2551.741891][   T73]      ipv6_add_addr+0x411/0x2000
[ 2551.741891][   T73]      inet6_addr_add+0x30e/0xa40
[ 2551.741891][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2551.741891][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2551.741891][   T73]      netlink_rcv_skb+0x130/0x360
[ 2551.741891][   T73]      netlink_unicast+0x449/0x710
[ 2551.741891][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2551.741891][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2551.741891][   T73]      ___sys_sendmsg+0xee/0x170
[ 2551.741891][   T73]      __sys_sendmsg+0xcd/0x170
[ 2551.741891][   T73]      do_syscall_64+0xc6/0x1e0
[ 2551.741891][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2551.741891][   T73] 
[ 2551.743895][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2551.743895][   T73]      netdev_get_by_index+0x5e/0x80
[ 2551.743895][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2551.743895][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2551.743895][   T73]      ip6_route_add+0x1c/0x140
[ 2551.743895][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2551.743895][   T73]      addrconf_add_dev+0xe2/0x170
[ 2551.743895][   T73]      inet6_addr_add+0x12f/0xa40
[ 2551.743895][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2551.743895][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2551.743895][   T73]      netlink_rcv_skb+0x130/0x360
[ 2551.743895][   T73]      netlink_unicast+0x449/0x710
[ 2551.743895][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2551.743895][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2551.743895][   T73]      ___sys_sendmsg+0xee/0x170
[ 2551.743895][   T73]      __sys_sendmsg+0xcd/0x170
[ 2551.743895][   T73]      do_syscall_64+0xc6/0x1e0
[ 2551.743895][   T73] 
[ 2551.745853][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2551.745853][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2551.745853][   T73]      ipv6_find_idev+0x102/0x170
[ 2551.745853][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2551.745853][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2551.745853][   T73]      netlink_rcv_skb+0x130/0x360
[ 2551.745853][   T73]      netlink_unicast+0x449/0x710
[ 2551.745853][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2551.745853][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2551.745853][   T73]      ___sys_sendmsg+0xee/0x170
[ 2551.745853][   T73]      __sys_sendmsg+0xcd/0x170
[ 2551.745853][   T73]      do_syscall_64+0xc6/0x1e0
[ 2551.745853][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2551.745853][   T73] 
[ 2551.747390][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2551.747390][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2551.747390][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2551.747390][   T73]      ipv6_find_idev+0x102/0x170
[ 2551.747390][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2551.747390][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2551.747390][   T73]      netlink_rcv_skb+0x130/0x360
[ 2551.747390][   T73]      netlink_unicast+0x449/0x710
[ 2551.747390][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2551.747390][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2551.747390][   T73]      ___sys_sendmsg+0xee/0x170
[ 2551.747390][   T73]      __sys_sendmsg+0xcd/0x170
[ 2551.747390][   T73]      do_syscall_64+0xc6/0x1e0
[ 2551.747390][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2551.747390][   T73] 
[ 2551.749080][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2551.749372][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2551.749372][   T73]      netdev_get_by_index+0x5e/0x80
[ 2551.749372][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2551.749372][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2551.749372][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2551.749372][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2551.749372][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2551.749372][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2551.749372][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2551.749372][   T73]      addrconf_dad_begin+0x310/0x670
[ 2551.749372][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2551.749372][   T73]      process_one_work+0x84d/0x18a0
[ 2551.749372][   T73]      worker_thread+0x587/0xd30
[ 2551.749372][   T73]      kthread+0x28a/0x350
[ 2551.749372][   T73]      ret_from_fork+0x31/0x70
[ 2551.749372][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2551.749372][   T73] 
[ 2551.751272][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2551.751272][   T73]      netdev_get_by_index+0x5e/0x80
[ 2551.751272][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2551.751272][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2551.751272][   T73]      ip6_route_add+0x1c/0x140
[ 2551.751272][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2551.751272][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2551.751272][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2551.751272][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2551.751272][   T73]      netlink_rcv_skb+0x130/0x360
[ 2551.751272][   T73]      netlink_unicast+0x449/0x710
[ 2551.751272][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2551.751272][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2551.751272][   T73]      ___sys_sendmsg+0xee/0x170
[ 2551.751272][   T73]      __sys_sendmsg+0xcd/0x170
[ 2551.751272][   T73]      do_syscall_64+0xc6/0x1e0
[ 2551.751272][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2551.751272][   T73] 
[ 2551.753267][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2551.753267][   T73]      netdev_get_by_index+0x5e/0x80
[ 2551.753267][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2551.753267][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2551.753267][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2551.753267][   T73]      ipv6_add_addr+0x411/0x2000
[ 2551.753267][   T73]      inet6_addr_add+0x30e/0xa40
[ 2551.753267][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2551.753267][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2551.753267][   T73]      netlink_rcv_skb+0x130/0x360
[ 2551.753267][   T73]      netlink_unicast+0x449/0x710
[ 2551.753267][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2551.753267][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2551.753267][   T73]      ___sys_sendmsg+0xee/0x170
[ 2551.753267][   T73]      __sys_sendmsg+0xcd/0x170
[ 2551.753267][   T73]      do_syscall_64+0xc6/0x1e0
[ 2551.753267][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2551.753267][   T73] 
[ 2551.755261][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2551.755261][   T73]      netdev_get_by_index+0x5e/0x80
[ 2551.755261][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2551.755261][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2551.755261][   T73]      ip6_route_add+0x1c/0x140
[ 2551.755261][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2551.755261][   T73]      addrconf_add_dev+0xe2/0x170
[ 2551.755261][   T73]      inet6_addr_add+0x12f/0xa40
[ 2551.755261][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2551.755261][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2551.755261][   T73]      netlink_rcv_skb+0x130/0x360
[ 2551.755261][   T73]      netlink_unicast+0x449/0x710
[ 2551.755261][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2551.755261][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2551.755261][   T73]      ___sys_sendmsg+0xee/0x170
[ 2551.755261][   T73]      __sys_sendmsg+0xcd/0x170
[ 2551.755261][   T73]      do_syscall_64+0xc6/0x1e0
[ 2551.755261][   T73] 
[ 2551.757229][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2551.757229][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2551.757229][   T73]      ipv6_find_idev+0x102/0x170
[ 2551.757229][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2551.757229][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2551.757229][   T73]      netlink_rcv_skb+0x130/0x360
[ 2551.757229][   T73]      netlink_unicast+0x449/0x710
[ 2551.757229][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2551.757229][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2551.757229][   T73]      ___sys_sendmsg+0xee/0x170
[ 2551.757229][   T73]      __sys_sendmsg+0xcd/0x170
[ 2551.757229][   T73]      do_syscall_64+0xc6/0x1e0
[ 2551.757229][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2551.757229][   T73] 
[ 2551.758762][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2551.758762][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2551.758762][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2551.758762][   T73]      ipv6_find_idev+0x102/0x170
[ 2551.758762][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2551.758762][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2551.758762][   T73]      netlink_rcv_skb+0x130/0x360
[ 2551.758762][   T73]      netlink_unicast+0x449/0x710
[ 2551.758762][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2551.758762][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2551.758762][   T73]      ___sys_sendmsg+0xee/0x170
[ 2551.758762][   T73]      __sys_sendmsg+0xcd/0x170
[ 2551.758762][   T73]      do_syscall_64+0xc6/0x1e0
[ 2551.758762][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2551.758762][   T73] 
[ 2551.760436][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2551.760720][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2551.760720][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2551.760720][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2551.760720][   T73]      fib6_nh_init+0xa22/0x1580
[ 2551.760720][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2551.760720][   T73]      ip6_route_add+0x1c/0x140
[ 2551.760720][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2551.760720][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2551.760720][   T73]      netlink_rcv_skb+0x130/0x360
[ 2551.760720][   T73]      netlink_unicast+0x449/0x710
[ 2551.760720][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2551.760720][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2551.760720][   T73]      ___sys_sendmsg+0xee/0x170
[ 2551.760720][   T73]      __sys_sendmsg+0xcd/0x170
[ 2551.760720][   T73]      do_syscall_64+0xc6/0x1e0
[ 2551.760720][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2551.760720][   T73] 
[ 2551.763349][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2551.763349][   T73]      dst_init+0x84/0x4a0
[ 2551.763349][   T73]      dst_alloc+0x97/0x150
[ 2551.763349][   T73]      ip6_dst_alloc+0x23/0x90
[ 2551.763349][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2551.763349][   T73]      ip6_pol_route+0x56f/0x840
[ 2551.763349][   T73]      fib6_rule_lookup+0x456/0x630
[ 2551.763349][   T73]      ip6_route_input+0x59c/0xa50
[ 2551.763349][   T73]      ipv6_rcv+0x397/0x810
[ 2551.763349][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2551.763349][   T73]      process_backlog+0x101/0x620
[ 2551.763349][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2551.763349][   T73]      net_rx_action+0x495/0xbe0
[ 2551.763349][   T73]      __do_softirq+0x1b5/0x7f6
[ 2551.763349][   T73] 
[ 2551.765553][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2551.765553][   T73]      netdev_get_by_index+0x5e/0x80
[ 2551.765553][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2551.765553][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2551.765553][   T73]      ip6_route_add+0x1c/0x140
[ 2551.765553][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2551.765553][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2551.765553][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2551.765553][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2551.765553][   T73]      netlink_rcv_skb+0x130/0x360
[ 2551.765553][   T73]      netlink_unicast+0x449/0x710
[ 2551.765553][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2551.765553][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2551.765553][   T73]      ___sys_sendmsg+0xee/0x170
[ 2551.765553][   T73]      __sys_sendmsg+0xcd/0x170
[ 2551.765553][   T73]      do_syscall_64+0xc6/0x1e0
[ 2551.765553][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2551.765553][   T73] 
[ 2551.767777][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2551.767777][   T73]      netdev_get_by_index+0x5e/0x80
[ 2551.767777][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2551.767777][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2551.767777][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2551.767777][   T73]      ipv6_add_addr+0x411/0x2000
[ 2551.767777][   T73]      inet6_addr_add+0x30e/0xa40
[ 2551.767777][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2551.767777][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2551.767777][   T73]      netlink_rcv_skb+0x130/0x360
[ 2551.767777][   T73]      netlink_unicast+0x449/0x710
[ 2551.767777][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2551.767777][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2551.767777][   T73]      ___sys_sendmsg+0xee/0x170
[ 2551.767777][   T73]      __sys_sendmsg+0xcd/0x170
[ 2551.767777][   T73]      do_syscall_64+0xc6/0x1e0
[ 2551.767777][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2551.767777][   T73] 
[ 2551.770066][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2551.770066][   T73]      netdev_get_by_index+0x5e/0x80
[ 2551.770066][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2551.770066][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2551.770066][   T73]      ip6_route_add+0x1c/0x140
[ 2551.770066][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2551.770066][   T73]      addrconf_add_dev+0xe2/0x170
[ 2551.770066][   T73]      inet6_addr_add+0x12f/0xa40
[ 2551.770066][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2551.770066][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2551.770066][   T73]      netlink_rcv_skb+0x130/0x360
[ 2551.770066][   T73]      netlink_unicast+0x449/0x710
[ 2551.770066][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2551.770066][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2551.770066][   T73]      ___sys_sendmsg+0xee/0x170
[ 2551.770066][   T73]      __sys_sendmsg+0xcd/0x170
[ 2551.770066][   T73]      do_syscall_64+0xc6/0x1e0
[ 2551.770066][   T73] 
[ 2551.772200][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2551.772200][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2551.772200][   T73]      ipv6_find_idev+0x102/0x170
[ 2551.772200][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2551.772200][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2551.772200][   T73]      netlink_rcv_skb+0x130/0x360
[ 2551.772200][   T73]      netlink_unicast+0x449/0x710
[ 2551.772200][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2551.772200][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2551.772200][   T73]      ___sys_sendmsg+0xee/0x170
[ 2551.772200][   T73]      __sys_sendmsg+0xcd/0x170
[ 2551.772200][   T73]      do_syscall_64+0xc6/0x1e0
[ 2551.772200][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2551.772200][   T73] 
[ 2551.773920][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2551.773920][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2551.773920][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2551.773920][   T73]      ipv6_find_idev+0x102/0x170
[ 2551.773920][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2551.773920][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2551.773920][   T73]      netlink_rcv_skb+0x130/0x360
[ 2551.773920][   T73]      netlink_unicast+0x449/0x710
[ 2551.773920][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2551.773920][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2551.773920][   T73]      ___sys_sendmsg+0xee/0x170
[ 2551.773920][   T73]      __sys_sendmsg+0xcd/0x170
[ 2551.773920][   T73]      do_syscall_64+0xc6/0x1e0
[ 2551.773920][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2551.773920][   T73] 
[ 2551.775832][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2551.776110][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2551.776110][   T73]      netdev_get_by_index+0x5e/0x80
[ 2551.776110][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2551.776110][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2551.776110][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2551.776110][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2551.776110][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2551.776110][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2551.776110][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2551.776110][   T73]      addrconf_dad_begin+0x310/0x670
[ 2551.776110][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2551.776110][   T73]      process_one_work+0x84d/0x18a0
[ 2551.776110][   T73]      worker_thread+0x587/0xd30
[ 2551.776110][   T73]      kthread+0x28a/0x350
[ 2551.776110][   T73]      ret_from_fork+0x31/0x70
[ 2551.776110][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2551.776110][   T73] 
[ 2551.778252][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2551.778252][   T73]      netdev_get_by_index+0x5e/0x80
[ 2551.778252][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2551.778252][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2551.778252][   T73]      ip6_route_add+0x1c/0x140
[ 2551.778252][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2551.778252][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2551.778252][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2551.778252][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2551.778252][   T73]      netlink_rcv_skb+0x130/0x360
[ 2551.778252][   T73]      netlink_unicast+0x449/0x710
[ 2551.778252][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2551.778252][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2551.778252][   T73]      ___sys_sendmsg+0xee/0x170
[ 2551.778252][   T73]      __sys_sendmsg+0xcd/0x170
[ 2551.778252][   T73]      do_syscall_64+0xc6/0x1e0
[ 2551.778252][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2551.778252][   T73] 
[ 2551.780477][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2551.780477][   T73]      netdev_get_by_index+0x5e/0x80
[ 2551.780477][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2551.780477][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2551.780477][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2551.780477][   T73]      ipv6_add_addr+0x411/0x2000
[ 2551.780477][   T73]      inet6_addr_add+0x30e/0xa40
[ 2551.780477][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2551.780477][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2551.780477][   T73]      netlink_rcv_skb+0x130/0x360
[ 2551.780477][   T73]      netlink_unicast+0x449/0x710
[ 2551.780477][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2551.780477][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2551.780477][   T73]      ___sys_sendmsg+0xee/0x170
[ 2551.780477][   T73]      __sys_sendmsg+0xcd/0x170
[ 2551.780477][   T73]      do_syscall_64+0xc6/0x1e0
[ 2551.780477][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2551.780477][   T73] 
[ 2551.782696][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2551.782696][   T73]      netdev_get_by_index+0x5e/0x80
[ 2551.782696][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2551.782696][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2551.782696][   T73]      ip6_route_add+0x1c/0x140
[ 2551.782696][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2551.782696][   T73]      addrconf_add_dev+0xe2/0x170
[ 2551.782696][   T73]      inet6_addr_add+0x12f/0xa40
[ 2551.782696][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2551.782696][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2551.782696][   T73]      netlink_rcv_skb+0x130/0x360
[ 2551.782696][   T73]      netlink_unicast+0x449/0x710
[ 2551.782696][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2551.782696][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2551.782696][   T73]      ___sys_sendmsg+0xee/0x170
[ 2551.782696][   T73]      __sys_sendmsg+0xcd/0x170
[ 2551.782696][   T73]      do_syscall_64+0xc6/0x1e0
[ 2551.782696][   T73] 
[ 2551.785286][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2551.785286][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2551.785286][   T73]      ipv6_find_idev+0x102/0x170
[ 2551.785286][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2551.785286][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2551.785286][   T73]      netlink_rcv_skb+0x130/0x360
[ 2551.785286][   T73]      netlink_unicast+0x449/0x710
[ 2551.785286][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2551.785286][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2551.785286][   T73]      ___sys_sendmsg+0xee/0x170
[ 2551.785286][   T73]      __sys_sendmsg+0xcd/0x170
[ 2551.785286][   T73]      do_syscall_64+0xc6/0x1e0
[ 2551.785286][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2551.785286][   T73] 
[ 2551.786993][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2551.786993][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2551.786993][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2551.786993][   T73]      ipv6_find_idev+0x102/0x170
[ 2551.786993][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2551.786993][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2551.786993][   T73]      netlink_rcv_skb+0x130/0x360
[ 2551.786993][   T73]      netlink_unicast+0x449/0x710
[ 2551.786993][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2551.786993][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2551.786993][   T73]      ___sys_sendmsg+0xee/0x170
[ 2551.786993][   T73]      __sys_sendmsg+0xcd/0x170
[ 2551.786993][   T73]      do_syscall_64+0xc6/0x1e0
[ 2551.786993][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2551.786993][   T73] 
[ 2561.799801][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2561.800337][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2561.800337][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2561.800337][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2561.800337][   T73]      fib6_nh_init+0xa22/0x1580
[ 2561.800337][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2561.800337][   T73]      ip6_route_add+0x1c/0x140
[ 2561.800337][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2561.800337][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2561.800337][   T73]      netlink_rcv_skb+0x130/0x360
[ 2561.800337][   T73]      netlink_unicast+0x449/0x710
[ 2561.800337][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2561.800337][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2561.800337][   T73]      ___sys_sendmsg+0xee/0x170
[ 2561.800337][   T73]      __sys_sendmsg+0xcd/0x170
[ 2561.800337][   T73]      do_syscall_64+0xc6/0x1e0
[ 2561.800337][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2561.800337][   T73] 
[ 2561.802606][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2561.802606][   T73]      dst_init+0x84/0x4a0
[ 2561.802606][   T73]      dst_alloc+0x97/0x150
[ 2561.802606][   T73]      ip6_dst_alloc+0x23/0x90
[ 2561.802606][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2561.802606][   T73]      ip6_pol_route+0x56f/0x840
[ 2561.802606][   T73]      fib6_rule_lookup+0x456/0x630
[ 2561.802606][   T73]      ip6_route_input+0x59c/0xa50
[ 2561.802606][   T73]      ipv6_rcv+0x397/0x810
[ 2561.802606][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2561.802606][   T73]      process_backlog+0x101/0x620
[ 2561.802606][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2561.802606][   T73]      net_rx_action+0x495/0xbe0
[ 2561.802606][   T73]      __do_softirq+0x1b5/0x7f6
[ 2561.802606][   T73] 
[ 2561.805455][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2561.805455][   T73]      netdev_get_by_index+0x5e/0x80
[ 2561.805455][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2561.805455][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2561.805455][   T73]      ip6_route_add+0x1c/0x140
[ 2561.805455][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2561.805455][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2561.805455][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2561.805455][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2561.805455][   T73]      netlink_rcv_skb+0x130/0x360
[ 2561.805455][   T73]      netlink_unicast+0x449/0x710
[ 2561.805455][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2561.805455][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2561.805455][   T73]      ___sys_sendmsg+0xee/0x170
[ 2561.805455][   T73]      __sys_sendmsg+0xcd/0x170
[ 2561.805455][   T73]      do_syscall_64+0xc6/0x1e0
[ 2561.805455][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2561.805455][   T73] 
[ 2561.807806][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2561.807806][   T73]      netdev_get_by_index+0x5e/0x80
[ 2561.807806][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2561.807806][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2561.807806][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2561.807806][   T73]      ipv6_add_addr+0x411/0x2000
[ 2561.807806][   T73]      inet6_addr_add+0x30e/0xa40
[ 2561.807806][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2561.807806][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2561.807806][   T73]      netlink_rcv_skb+0x130/0x360
[ 2561.807806][   T73]      netlink_unicast+0x449/0x710
[ 2561.807806][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2561.807806][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2561.807806][   T73]      ___sys_sendmsg+0xee/0x170
[ 2561.807806][   T73]      __sys_sendmsg+0xcd/0x170
[ 2561.807806][   T73]      do_syscall_64+0xc6/0x1e0
[ 2561.807806][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2561.807806][   T73] 
[ 2561.810173][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2561.810173][   T73]      netdev_get_by_index+0x5e/0x80
[ 2561.810173][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2561.810173][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2561.810173][   T73]      ip6_route_add+0x1c/0x140
[ 2561.810173][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2561.810173][   T73]      addrconf_add_dev+0xe2/0x170
[ 2561.810173][   T73]      inet6_addr_add+0x12f/0xa40
[ 2561.810173][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2561.810173][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2561.810173][   T73]      netlink_rcv_skb+0x130/0x360
[ 2561.810173][   T73]      netlink_unicast+0x449/0x710
[ 2561.810173][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2561.810173][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2561.810173][   T73]      ___sys_sendmsg+0xee/0x170
[ 2561.810173][   T73]      __sys_sendmsg+0xcd/0x170
[ 2561.810173][   T73]      do_syscall_64+0xc6/0x1e0
[ 2561.810173][   T73] 
[ 2561.812464][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2561.812464][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2561.812464][   T73]      ipv6_find_idev+0x102/0x170
[ 2561.812464][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2561.812464][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2561.812464][   T73]      netlink_rcv_skb+0x130/0x360
[ 2561.812464][   T73]      netlink_unicast+0x449/0x710
[ 2561.812464][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2561.812464][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2561.812464][   T73]      ___sys_sendmsg+0xee/0x170
[ 2561.812464][   T73]      __sys_sendmsg+0xcd/0x170
[ 2561.812464][   T73]      do_syscall_64+0xc6/0x1e0
[ 2561.812464][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2561.812464][   T73] 
[ 2561.814266][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2561.814266][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2561.814266][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2561.814266][   T73]      ipv6_find_idev+0x102/0x170
[ 2561.814266][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2561.814266][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2561.814266][   T73]      netlink_rcv_skb+0x130/0x360
[ 2561.814266][   T73]      netlink_unicast+0x449/0x710
[ 2561.814266][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2561.814266][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2561.814266][   T73]      ___sys_sendmsg+0xee/0x170
[ 2561.814266][   T73]      __sys_sendmsg+0xcd/0x170
[ 2561.814266][   T73]      do_syscall_64+0xc6/0x1e0
[ 2561.814266][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2561.814266][   T73] 
[ 2561.816260][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2561.816597][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2561.816597][   T73]      netdev_get_by_index+0x5e/0x80
[ 2561.816597][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2561.816597][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2561.816597][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2561.816597][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2561.816597][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2561.816597][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2561.816597][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2561.816597][   T73]      addrconf_dad_begin+0x310/0x670
[ 2561.816597][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2561.816597][   T73]      process_one_work+0x84d/0x18a0
[ 2561.816597][   T73]      worker_thread+0x587/0xd30
[ 2561.816597][   T73]      kthread+0x28a/0x350
[ 2561.816597][   T73]      ret_from_fork+0x31/0x70
[ 2561.816597][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2561.816597][   T73] 
[ 2561.818852][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2561.818852][   T73]      netdev_get_by_index+0x5e/0x80
[ 2561.818852][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2561.818852][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2561.818852][   T73]      ip6_route_add+0x1c/0x140
[ 2561.818852][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2561.818852][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2561.818852][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2561.818852][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2561.818852][   T73]      netlink_rcv_skb+0x130/0x360
[ 2561.818852][   T73]      netlink_unicast+0x449/0x710
[ 2561.818852][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2561.818852][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2561.818852][   T73]      ___sys_sendmsg+0xee/0x170
[ 2561.818852][   T73]      __sys_sendmsg+0xcd/0x170
[ 2561.818852][   T73]      do_syscall_64+0xc6/0x1e0
[ 2561.818852][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2561.818852][   T73] 
[ 2561.821590][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2561.821590][   T73]      netdev_get_by_index+0x5e/0x80
[ 2561.821590][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2561.821590][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2561.821590][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2561.821590][   T73]      ipv6_add_addr+0x411/0x2000
[ 2561.821590][   T73]      inet6_addr_add+0x30e/0xa40
[ 2561.821590][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2561.821590][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2561.821590][   T73]      netlink_rcv_skb+0x130/0x360
[ 2561.821590][   T73]      netlink_unicast+0x449/0x710
[ 2561.821590][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2561.821590][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2561.821590][   T73]      ___sys_sendmsg+0xee/0x170
[ 2561.821590][   T73]      __sys_sendmsg+0xcd/0x170
[ 2561.821590][   T73]      do_syscall_64+0xc6/0x1e0
[ 2561.821590][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2561.821590][   T73] 
[ 2561.824182][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2561.824182][   T73]      netdev_get_by_index+0x5e/0x80
[ 2561.824182][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2561.824182][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2561.824182][   T73]      ip6_route_add+0x1c/0x140
[ 2561.824182][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2561.824182][   T73]      addrconf_add_dev+0xe2/0x170
[ 2561.824182][   T73]      inet6_addr_add+0x12f/0xa40
[ 2561.824182][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2561.824182][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2561.824182][   T73]      netlink_rcv_skb+0x130/0x360
[ 2561.824182][   T73]      netlink_unicast+0x449/0x710
[ 2561.824182][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2561.824182][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2561.824182][   T73]      ___sys_sendmsg+0xee/0x170
[ 2561.824182][   T73]      __sys_sendmsg+0xcd/0x170
[ 2561.824182][   T73]      do_syscall_64+0xc6/0x1e0
[ 2561.824182][   T73] 
[ 2561.827472][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2561.827472][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2561.827472][   T73]      ipv6_find_idev+0x102/0x170
[ 2561.827472][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2561.827472][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2561.827472][   T73]      netlink_rcv_skb+0x130/0x360
[ 2561.827472][   T73]      netlink_unicast+0x449/0x710
[ 2561.827472][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2561.827472][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2561.827472][   T73]      ___sys_sendmsg+0xee/0x170
[ 2561.827472][   T73]      __sys_sendmsg+0xcd/0x170
[ 2561.827472][   T73]      do_syscall_64+0xc6/0x1e0
[ 2561.827472][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2561.827472][   T73] 
[ 2561.829795][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2561.829795][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2561.829795][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2561.829795][   T73]      ipv6_find_idev+0x102/0x170
[ 2561.829795][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2561.829795][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2561.829795][   T73]      netlink_rcv_skb+0x130/0x360
[ 2561.829795][   T73]      netlink_unicast+0x449/0x710
[ 2561.829795][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2561.829795][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2561.829795][   T73]      ___sys_sendmsg+0xee/0x170
[ 2561.829795][   T73]      __sys_sendmsg+0xcd/0x170
[ 2561.829795][   T73]      do_syscall_64+0xc6/0x1e0
[ 2561.829795][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2561.829795][   T73] 
[ 2561.832547][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2561.832983][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2561.832983][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2561.832983][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2561.832983][   T73]      fib6_nh_init+0xa22/0x1580
[ 2561.832983][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2561.832983][   T73]      ip6_route_add+0x1c/0x140
[ 2561.832983][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2561.832983][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2561.832983][   T73]      netlink_rcv_skb+0x130/0x360
[ 2561.832983][   T73]      netlink_unicast+0x449/0x710
[ 2561.832983][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2561.832983][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2561.832983][   T73]      ___sys_sendmsg+0xee/0x170
[ 2561.832983][   T73]      __sys_sendmsg+0xcd/0x170
[ 2561.832983][   T73]      do_syscall_64+0xc6/0x1e0
[ 2561.832983][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2561.832983][   T73] 
[ 2561.837908][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2561.837908][   T73]      dst_init+0x84/0x4a0
[ 2561.837908][   T73]      dst_alloc+0x97/0x150
[ 2561.837908][   T73]      ip6_dst_alloc+0x23/0x90
[ 2561.837908][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2561.837908][   T73]      ip6_pol_route+0x56f/0x840
[ 2561.837908][   T73]      fib6_rule_lookup+0x456/0x630
[ 2561.837908][   T73]      ip6_route_input+0x59c/0xa50
[ 2561.837908][   T73]      ipv6_rcv+0x397/0x810
[ 2561.837908][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2561.837908][   T73]      process_backlog+0x101/0x620
[ 2561.837908][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2561.837908][   T73]      net_rx_action+0x495/0xbe0
[ 2561.837908][   T73]      __do_softirq+0x1b5/0x7f6
[ 2561.837908][   T73] 
[ 2561.842627][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2561.842627][   T73]      netdev_get_by_index+0x5e/0x80
[ 2561.842627][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2561.842627][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2561.842627][   T73]      ip6_route_add+0x1c/0x140
[ 2561.842627][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2561.842627][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2561.842627][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2561.842627][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2561.842627][   T73]      netlink_rcv_skb+0x130/0x360
[ 2561.842627][   T73]      netlink_unicast+0x449/0x710
[ 2561.842627][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2561.842627][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2561.842627][   T73]      ___sys_sendmsg+0xee/0x170
[ 2561.842627][   T73]      __sys_sendmsg+0xcd/0x170
[ 2561.842627][   T73]      do_syscall_64+0xc6/0x1e0
[ 2561.842627][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2561.842627][   T73] 
[ 2561.848208][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2561.848208][   T73]      netdev_get_by_index+0x5e/0x80
[ 2561.848208][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2561.848208][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2561.848208][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2561.848208][   T73]      ipv6_add_addr+0x411/0x2000
[ 2561.848208][   T73]      inet6_addr_add+0x30e/0xa40
[ 2561.848208][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2561.848208][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2561.848208][   T73]      netlink_rcv_skb+0x130/0x360
[ 2561.848208][   T73]      netlink_unicast+0x449/0x710
[ 2561.848208][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2561.848208][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2561.848208][   T73]      ___sys_sendmsg+0xee/0x170
[ 2561.848208][   T73]      __sys_sendmsg+0xcd/0x170
[ 2561.848208][   T73]      do_syscall_64+0xc6/0x1e0
[ 2561.848208][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2561.848208][   T73] 
[ 2561.853734][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2561.853734][   T73]      netdev_get_by_index+0x5e/0x80
[ 2561.853734][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2561.853734][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2561.853734][   T73]      ip6_route_add+0x1c/0x140
[ 2561.853734][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2561.853734][   T73]      addrconf_add_dev+0xe2/0x170
[ 2561.853734][   T73]      inet6_addr_add+0x12f/0xa40
[ 2561.853734][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2561.853734][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2561.853734][   T73]      netlink_rcv_skb+0x130/0x360
[ 2561.853734][   T73]      netlink_unicast+0x449/0x710
[ 2561.853734][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2561.853734][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2561.853734][   T73]      ___sys_sendmsg+0xee/0x170
[ 2561.853734][   T73]      __sys_sendmsg+0xcd/0x170
[ 2561.853734][   T73]      do_syscall_64+0xc6/0x1e0
[ 2561.853734][   T73] 
[ 2561.859117][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2561.859117][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2561.859117][   T73]      ipv6_find_idev+0x102/0x170
[ 2561.859117][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2561.859117][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2561.859117][   T73]      netlink_rcv_skb+0x130/0x360
[ 2561.859117][   T73]      netlink_unicast+0x449/0x710
[ 2561.859117][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2561.859117][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2561.859117][   T73]      ___sys_sendmsg+0xee/0x170
[ 2561.859117][   T73]      __sys_sendmsg+0xcd/0x170
[ 2561.859117][   T73]      do_syscall_64+0xc6/0x1e0
[ 2561.859117][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2561.859117][   T73] 
[ 2561.863304][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2561.863304][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2561.863304][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2561.863304][   T73]      ipv6_find_idev+0x102/0x170
[ 2561.863304][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2561.863304][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2561.863304][   T73]      netlink_rcv_skb+0x130/0x360
[ 2561.863304][   T73]      netlink_unicast+0x449/0x710
[ 2561.863304][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2561.863304][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2561.863304][   T73]      ___sys_sendmsg+0xee/0x170
[ 2561.863304][   T73]      __sys_sendmsg+0xcd/0x170
[ 2561.863304][   T73]      do_syscall_64+0xc6/0x1e0
[ 2561.863304][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2561.863304][   T73] 
[ 2561.867995][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2561.868679][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2561.868679][   T73]      netdev_get_by_index+0x5e/0x80
[ 2561.868679][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2561.868679][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2561.868679][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2561.868679][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2561.868679][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2561.868679][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2561.868679][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2561.868679][   T73]      addrconf_dad_begin+0x310/0x670
[ 2561.868679][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2561.868679][   T73]      process_one_work+0x84d/0x18a0
[ 2561.868679][   T73]      worker_thread+0x587/0xd30
[ 2561.868679][   T73]      kthread+0x28a/0x350
[ 2561.868679][   T73]      ret_from_fork+0x31/0x70
[ 2561.868679][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2561.868679][   T73] 
[ 2561.873969][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2561.873969][   T73]      netdev_get_by_index+0x5e/0x80
[ 2561.873969][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2561.873969][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2561.873969][   T73]      ip6_route_add+0x1c/0x140
[ 2561.873969][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2561.873969][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2561.873969][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2561.873969][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2561.873969][   T73]      netlink_rcv_skb+0x130/0x360
[ 2561.873969][   T73]      netlink_unicast+0x449/0x710
[ 2561.873969][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2561.873969][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2561.873969][   T73]      ___sys_sendmsg+0xee/0x170
[ 2561.873969][   T73]      __sys_sendmsg+0xcd/0x170
[ 2561.873969][   T73]      do_syscall_64+0xc6/0x1e0
[ 2561.873969][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2561.873969][   T73] 
[ 2561.879590][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2561.879590][   T73]      netdev_get_by_index+0x5e/0x80
[ 2561.879590][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2561.879590][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2561.879590][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2561.879590][   T73]      ipv6_add_addr+0x411/0x2000
[ 2561.879590][   T73]      inet6_addr_add+0x30e/0xa40
[ 2561.879590][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2561.879590][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2561.879590][   T73]      netlink_rcv_skb+0x130/0x360
[ 2561.879590][   T73]      netlink_unicast+0x449/0x710
[ 2561.879590][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2561.879590][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2561.879590][   T73]      ___sys_sendmsg+0xee/0x170
[ 2561.879590][   T73]      __sys_sendmsg+0xcd/0x170
[ 2561.879590][   T73]      do_syscall_64+0xc6/0x1e0
[ 2561.879590][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2561.879590][   T73] 
[ 2561.885230][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2561.885230][   T73]      netdev_get_by_index+0x5e/0x80
[ 2561.885230][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2561.885230][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2561.885230][   T73]      ip6_route_add+0x1c/0x140
[ 2561.885230][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2561.885230][   T73]      addrconf_add_dev+0xe2/0x170
[ 2561.885230][   T73]      inet6_addr_add+0x12f/0xa40
[ 2561.885230][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2561.885230][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2561.885230][   T73]      netlink_rcv_skb+0x130/0x360
[ 2561.885230][   T73]      netlink_unicast+0x449/0x710
[ 2561.885230][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2561.885230][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2561.885230][   T73]      ___sys_sendmsg+0xee/0x170
[ 2561.885230][   T73]      __sys_sendmsg+0xcd/0x170
[ 2561.885230][   T73]      do_syscall_64+0xc6/0x1e0
[ 2561.885230][   T73] 
[ 2561.890691][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2561.890691][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2561.890691][   T73]      ipv6_find_idev+0x102/0x170
[ 2561.890691][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2561.890691][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2561.890691][   T73]      netlink_rcv_skb+0x130/0x360
[ 2561.890691][   T73]      netlink_unicast+0x449/0x710
[ 2561.890691][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2561.890691][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2561.890691][   T73]      ___sys_sendmsg+0xee/0x170
[ 2561.890691][   T73]      __sys_sendmsg+0xcd/0x170
[ 2561.890691][   T73]      do_syscall_64+0xc6/0x1e0
[ 2561.890691][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2561.890691][   T73] 
[ 2561.895282][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2561.895282][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2561.895282][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2561.895282][   T73]      ipv6_find_idev+0x102/0x170
[ 2561.895282][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2561.895282][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2561.895282][   T73]      netlink_rcv_skb+0x130/0x360
[ 2561.895282][   T73]      netlink_unicast+0x449/0x710
[ 2561.895282][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2561.895282][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2561.895282][   T73]      ___sys_sendmsg+0xee/0x170
[ 2561.895282][   T73]      __sys_sendmsg+0xcd/0x170
[ 2561.895282][   T73]      do_syscall_64+0xc6/0x1e0
[ 2561.895282][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2561.895282][   T73] 
[ 2571.967775][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2571.968231][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2571.968231][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2571.968231][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2571.968231][   T73]      fib6_nh_init+0xa22/0x1580
[ 2571.968231][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2571.968231][   T73]      ip6_route_add+0x1c/0x140
[ 2571.968231][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2571.968231][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2571.968231][   T73]      netlink_rcv_skb+0x130/0x360
[ 2571.968231][   T73]      netlink_unicast+0x449/0x710
[ 2571.968231][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2571.968231][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2571.968231][   T73]      ___sys_sendmsg+0xee/0x170
[ 2571.968231][   T73]      __sys_sendmsg+0xcd/0x170
[ 2571.968231][   T73]      do_syscall_64+0xc6/0x1e0
[ 2571.968231][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2571.968231][   T73] 
[ 2571.970140][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2571.970140][   T73]      dst_init+0x84/0x4a0
[ 2571.970140][   T73]      dst_alloc+0x97/0x150
[ 2571.970140][   T73]      ip6_dst_alloc+0x23/0x90
[ 2571.970140][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2571.970140][   T73]      ip6_pol_route+0x56f/0x840
[ 2571.970140][   T73]      fib6_rule_lookup+0x456/0x630
[ 2571.970140][   T73]      ip6_route_input+0x59c/0xa50
[ 2571.970140][   T73]      ipv6_rcv+0x397/0x810
[ 2571.970140][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2571.970140][   T73]      process_backlog+0x101/0x620
[ 2571.970140][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2571.970140][   T73]      net_rx_action+0x495/0xbe0
[ 2571.970140][   T73]      __do_softirq+0x1b5/0x7f6
[ 2571.970140][   T73] 
[ 2571.971769][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2571.971769][   T73]      netdev_get_by_index+0x5e/0x80
[ 2571.971769][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2571.971769][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2571.971769][   T73]      ip6_route_add+0x1c/0x140
[ 2571.971769][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2571.971769][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2571.971769][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2571.971769][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2571.971769][   T73]      netlink_rcv_skb+0x130/0x360
[ 2571.971769][   T73]      netlink_unicast+0x449/0x710
[ 2571.971769][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2571.971769][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2571.971769][   T73]      ___sys_sendmsg+0xee/0x170
[ 2571.971769][   T73]      __sys_sendmsg+0xcd/0x170
[ 2571.971769][   T73]      do_syscall_64+0xc6/0x1e0
[ 2571.971769][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2571.971769][   T73] 
[ 2571.973940][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2571.973940][   T73]      netdev_get_by_index+0x5e/0x80
[ 2571.973940][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2571.973940][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2571.973940][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2571.973940][   T73]      ipv6_add_addr+0x411/0x2000
[ 2571.973940][   T73]      inet6_addr_add+0x30e/0xa40
[ 2571.973940][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2571.973940][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2571.973940][   T73]      netlink_rcv_skb+0x130/0x360
[ 2571.973940][   T73]      netlink_unicast+0x449/0x710
[ 2571.973940][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2571.973940][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2571.973940][   T73]      ___sys_sendmsg+0xee/0x170
[ 2571.973940][   T73]      __sys_sendmsg+0xcd/0x170
[ 2571.973940][   T73]      do_syscall_64+0xc6/0x1e0
[ 2571.973940][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2571.973940][   T73] 
[ 2571.976131][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2571.976131][   T73]      netdev_get_by_index+0x5e/0x80
[ 2571.976131][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2571.976131][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2571.976131][   T73]      ip6_route_add+0x1c/0x140
[ 2571.976131][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2571.976131][   T73]      addrconf_add_dev+0xe2/0x170
[ 2571.976131][   T73]      inet6_addr_add+0x12f/0xa40
[ 2571.976131][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2571.976131][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2571.976131][   T73]      netlink_rcv_skb+0x130/0x360
[ 2571.976131][   T73]      netlink_unicast+0x449/0x710
[ 2571.976131][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2571.976131][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2571.976131][   T73]      ___sys_sendmsg+0xee/0x170
[ 2571.976131][   T73]      __sys_sendmsg+0xcd/0x170
[ 2571.976131][   T73]      do_syscall_64+0xc6/0x1e0
[ 2571.976131][   T73] 
[ 2571.978284][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2571.978284][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2571.978284][   T73]      ipv6_find_idev+0x102/0x170
[ 2571.978284][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2571.978284][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2571.978284][   T73]      netlink_rcv_skb+0x130/0x360
[ 2571.978284][   T73]      netlink_unicast+0x449/0x710
[ 2571.978284][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2571.978284][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2571.978284][   T73]      ___sys_sendmsg+0xee/0x170
[ 2571.978284][   T73]      __sys_sendmsg+0xcd/0x170
[ 2571.978284][   T73]      do_syscall_64+0xc6/0x1e0
[ 2571.978284][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2571.978284][   T73] 
[ 2571.979972][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2571.979972][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2571.979972][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2571.979972][   T73]      ipv6_find_idev+0x102/0x170
[ 2571.979972][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2571.979972][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2571.979972][   T73]      netlink_rcv_skb+0x130/0x360
[ 2571.979972][   T73]      netlink_unicast+0x449/0x710
[ 2571.979972][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2571.979972][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2571.979972][   T73]      ___sys_sendmsg+0xee/0x170
[ 2571.979972][   T73]      __sys_sendmsg+0xcd/0x170
[ 2571.979972][   T73]      do_syscall_64+0xc6/0x1e0
[ 2571.979972][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2571.979972][   T73] 
[ 2571.981831][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2571.982130][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2571.982130][   T73]      netdev_get_by_index+0x5e/0x80
[ 2571.982130][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2571.982130][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2571.982130][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2571.982130][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2571.982130][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2571.982130][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2571.982130][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2571.982130][   T73]      addrconf_dad_begin+0x310/0x670
[ 2571.982130][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2571.982130][   T73]      process_one_work+0x84d/0x18a0
[ 2571.982130][   T73]      worker_thread+0x587/0xd30
[ 2571.982130][   T73]      kthread+0x28a/0x350
[ 2571.982130][   T73]      ret_from_fork+0x31/0x70
[ 2571.982130][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2571.982130][   T73] 
[ 2571.984284][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2571.984284][   T73]      netdev_get_by_index+0x5e/0x80
[ 2571.984284][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2571.984284][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2571.984284][   T73]      ip6_route_add+0x1c/0x140
[ 2571.984284][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2571.984284][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2571.984284][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2571.984284][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2571.984284][   T73]      netlink_rcv_skb+0x130/0x360
[ 2571.984284][   T73]      netlink_unicast+0x449/0x710
[ 2571.984284][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2571.984284][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2571.984284][   T73]      ___sys_sendmsg+0xee/0x170
[ 2571.984284][   T73]      __sys_sendmsg+0xcd/0x170
[ 2571.984284][   T73]      do_syscall_64+0xc6/0x1e0
[ 2571.984284][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2571.984284][   T73] 
[ 2571.986474][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2571.986474][   T73]      netdev_get_by_index+0x5e/0x80
[ 2571.986474][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2571.986474][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2571.986474][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2571.986474][   T73]      ipv6_add_addr+0x411/0x2000
[ 2571.986474][   T73]      inet6_addr_add+0x30e/0xa40
[ 2571.986474][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2571.986474][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2571.986474][   T73]      netlink_rcv_skb+0x130/0x360
[ 2571.986474][   T73]      netlink_unicast+0x449/0x710
[ 2571.986474][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2571.986474][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2571.986474][   T73]      ___sys_sendmsg+0xee/0x170
[ 2571.986474][   T73]      __sys_sendmsg+0xcd/0x170
[ 2571.986474][   T73]      do_syscall_64+0xc6/0x1e0
[ 2571.986474][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2571.986474][   T73] 
[ 2571.988517][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2571.988517][   T73]      netdev_get_by_index+0x5e/0x80
[ 2571.988517][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2571.988517][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2571.988517][   T73]      ip6_route_add+0x1c/0x140
[ 2571.988517][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2571.988517][   T73]      addrconf_add_dev+0xe2/0x170
[ 2571.988517][   T73]      inet6_addr_add+0x12f/0xa40
[ 2571.988517][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2571.988517][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2571.988517][   T73]      netlink_rcv_skb+0x130/0x360
[ 2571.988517][   T73]      netlink_unicast+0x449/0x710
[ 2571.988517][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2571.988517][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2571.988517][   T73]      ___sys_sendmsg+0xee/0x170
[ 2571.988517][   T73]      __sys_sendmsg+0xcd/0x170
[ 2571.988517][   T73]      do_syscall_64+0xc6/0x1e0
[ 2571.988517][   T73] 
[ 2571.990473][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2571.990473][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2571.990473][   T73]      ipv6_find_idev+0x102/0x170
[ 2571.990473][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2571.990473][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2571.990473][   T73]      netlink_rcv_skb+0x130/0x360
[ 2571.990473][   T73]      netlink_unicast+0x449/0x710
[ 2571.990473][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2571.990473][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2571.990473][   T73]      ___sys_sendmsg+0xee/0x170
[ 2571.990473][   T73]      __sys_sendmsg+0xcd/0x170
[ 2571.990473][   T73]      do_syscall_64+0xc6/0x1e0
[ 2571.990473][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2571.990473][   T73] 
[ 2571.992057][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2571.992057][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2571.992057][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2571.992057][   T73]      ipv6_find_idev+0x102/0x170
[ 2571.992057][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2571.992057][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2571.992057][   T73]      netlink_rcv_skb+0x130/0x360
[ 2571.992057][   T73]      netlink_unicast+0x449/0x710
[ 2571.992057][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2571.992057][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2571.992057][   T73]      ___sys_sendmsg+0xee/0x170
[ 2571.992057][   T73]      __sys_sendmsg+0xcd/0x170
[ 2571.992057][   T73]      do_syscall_64+0xc6/0x1e0
[ 2571.992057][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2571.992057][   T73] 
[ 2571.993897][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2571.994184][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2571.994184][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2571.994184][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2571.994184][   T73]      fib6_nh_init+0xa22/0x1580
[ 2571.994184][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2571.994184][   T73]      ip6_route_add+0x1c/0x140
[ 2571.994184][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2571.994184][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2571.994184][   T73]      netlink_rcv_skb+0x130/0x360
[ 2571.994184][   T73]      netlink_unicast+0x449/0x710
[ 2571.994184][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2571.994184][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2571.994184][   T73]      ___sys_sendmsg+0xee/0x170
[ 2571.994184][   T73]      __sys_sendmsg+0xcd/0x170
[ 2571.994184][   T73]      do_syscall_64+0xc6/0x1e0
[ 2571.994184][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2571.994184][   T73] 
[ 2571.996364][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2571.996364][   T73]      dst_init+0x84/0x4a0
[ 2571.996364][   T73]      dst_alloc+0x97/0x150
[ 2571.996364][   T73]      ip6_dst_alloc+0x23/0x90
[ 2571.996364][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2571.996364][   T73]      ip6_pol_route+0x56f/0x840
[ 2571.996364][   T73]      fib6_rule_lookup+0x456/0x630
[ 2571.996364][   T73]      ip6_route_input+0x59c/0xa50
[ 2571.996364][   T73]      ipv6_rcv+0x397/0x810
[ 2571.996364][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2571.996364][   T73]      process_backlog+0x101/0x620
[ 2571.996364][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2571.996364][   T73]      net_rx_action+0x495/0xbe0
[ 2571.996364][   T73]      __do_softirq+0x1b5/0x7f6
[ 2571.996364][   T73] 
[ 2571.998340][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2571.998340][   T73]      netdev_get_by_index+0x5e/0x80
[ 2571.998340][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2571.998340][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2571.998340][   T73]      ip6_route_add+0x1c/0x140
[ 2571.998340][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2571.998340][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2571.998340][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2571.998340][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2571.998340][   T73]      netlink_rcv_skb+0x130/0x360
[ 2571.998340][   T73]      netlink_unicast+0x449/0x710
[ 2571.998340][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2571.998340][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2571.998340][   T73]      ___sys_sendmsg+0xee/0x170
[ 2571.998340][   T73]      __sys_sendmsg+0xcd/0x170
[ 2571.998340][   T73]      do_syscall_64+0xc6/0x1e0
[ 2571.998340][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2571.998340][   T73] 
[ 2572.000709][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2572.000709][   T73]      netdev_get_by_index+0x5e/0x80
[ 2572.000709][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2572.000709][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2572.000709][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2572.000709][   T73]      ipv6_add_addr+0x411/0x2000
[ 2572.000709][   T73]      inet6_addr_add+0x30e/0xa40
[ 2572.000709][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2572.000709][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2572.000709][   T73]      netlink_rcv_skb+0x130/0x360
[ 2572.000709][   T73]      netlink_unicast+0x449/0x710
[ 2572.000709][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2572.000709][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2572.000709][   T73]      ___sys_sendmsg+0xee/0x170
[ 2572.000709][   T73]      __sys_sendmsg+0xcd/0x170
[ 2572.000709][   T73]      do_syscall_64+0xc6/0x1e0
[ 2572.000709][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2572.000709][   T73] 
[ 2572.003221][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2572.003221][   T73]      netdev_get_by_index+0x5e/0x80
[ 2572.003221][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2572.003221][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2572.003221][   T73]      ip6_route_add+0x1c/0x140
[ 2572.003221][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2572.003221][   T73]      addrconf_add_dev+0xe2/0x170
[ 2572.003221][   T73]      inet6_addr_add+0x12f/0xa40
[ 2572.003221][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2572.003221][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2572.003221][   T73]      netlink_rcv_skb+0x130/0x360
[ 2572.003221][   T73]      netlink_unicast+0x449/0x710
[ 2572.003221][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2572.003221][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2572.003221][   T73]      ___sys_sendmsg+0xee/0x170
[ 2572.003221][   T73]      __sys_sendmsg+0xcd/0x170
[ 2572.003221][   T73]      do_syscall_64+0xc6/0x1e0
[ 2572.003221][   T73] 
[ 2572.005556][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2572.005556][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2572.005556][   T73]      ipv6_find_idev+0x102/0x170
[ 2572.005556][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2572.005556][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2572.005556][   T73]      netlink_rcv_skb+0x130/0x360
[ 2572.005556][   T73]      netlink_unicast+0x449/0x710
[ 2572.005556][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2572.005556][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2572.005556][   T73]      ___sys_sendmsg+0xee/0x170
[ 2572.005556][   T73]      __sys_sendmsg+0xcd/0x170
[ 2572.005556][   T73]      do_syscall_64+0xc6/0x1e0
[ 2572.005556][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2572.005556][   T73] 
[ 2572.007444][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2572.007444][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2572.007444][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2572.007444][   T73]      ipv6_find_idev+0x102/0x170
[ 2572.007444][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2572.007444][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2572.007444][   T73]      netlink_rcv_skb+0x130/0x360
[ 2572.007444][   T73]      netlink_unicast+0x449/0x710
[ 2572.007444][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2572.007444][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2572.007444][   T73]      ___sys_sendmsg+0xee/0x170
[ 2572.007444][   T73]      __sys_sendmsg+0xcd/0x170
[ 2572.007444][   T73]      do_syscall_64+0xc6/0x1e0
[ 2572.007444][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2572.007444][   T73] 
[ 2572.009407][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2572.010200][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2572.010200][   T73]      netdev_get_by_index+0x5e/0x80
[ 2572.010200][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2572.010200][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2572.010200][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2572.010200][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2572.010200][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2572.010200][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2572.010200][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2572.010200][   T73]      addrconf_dad_begin+0x310/0x670
[ 2572.010200][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2572.010200][   T73]      process_one_work+0x84d/0x18a0
[ 2572.010200][   T73]      worker_thread+0x587/0xd30
[ 2572.010200][   T73]      kthread+0x28a/0x350
[ 2572.010200][   T73]      ret_from_fork+0x31/0x70
[ 2572.010200][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2572.010200][   T73] 
[ 2572.012259][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2572.012259][   T73]      netdev_get_by_index+0x5e/0x80
[ 2572.012259][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2572.012259][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2572.012259][   T73]      ip6_route_add+0x1c/0x140
[ 2572.012259][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2572.012259][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2572.012259][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2572.012259][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2572.012259][   T73]      netlink_rcv_skb+0x130/0x360
[ 2572.012259][   T73]      netlink_unicast+0x449/0x710
[ 2572.012259][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2572.012259][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2572.012259][   T73]      ___sys_sendmsg+0xee/0x170
[ 2572.012259][   T73]      __sys_sendmsg+0xcd/0x170
[ 2572.012259][   T73]      do_syscall_64+0xc6/0x1e0
[ 2572.012259][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2572.012259][   T73] 
[ 2572.014450][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2572.014450][   T73]      netdev_get_by_index+0x5e/0x80
[ 2572.014450][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2572.014450][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2572.014450][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2572.014450][   T73]      ipv6_add_addr+0x411/0x2000
[ 2572.014450][   T73]      inet6_addr_add+0x30e/0xa40
[ 2572.014450][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2572.014450][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2572.014450][   T73]      netlink_rcv_skb+0x130/0x360
[ 2572.014450][   T73]      netlink_unicast+0x449/0x710
[ 2572.014450][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2572.014450][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2572.014450][   T73]      ___sys_sendmsg+0xee/0x170
[ 2572.014450][   T73]      __sys_sendmsg+0xcd/0x170
[ 2572.014450][   T73]      do_syscall_64+0xc6/0x1e0
[ 2572.014450][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2572.014450][   T73] 
[ 2572.016944][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2572.016944][   T73]      netdev_get_by_index+0x5e/0x80
[ 2572.016944][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2572.016944][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2572.016944][   T73]      ip6_route_add+0x1c/0x140
[ 2572.016944][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2572.016944][   T73]      addrconf_add_dev+0xe2/0x170
[ 2572.016944][   T73]      inet6_addr_add+0x12f/0xa40
[ 2572.016944][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2572.016944][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2572.016944][   T73]      netlink_rcv_skb+0x130/0x360
[ 2572.016944][   T73]      netlink_unicast+0x449/0x710
[ 2572.016944][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2572.016944][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2572.016944][   T73]      ___sys_sendmsg+0xee/0x170
[ 2572.016944][   T73]      __sys_sendmsg+0xcd/0x170
[ 2572.016944][   T73]      do_syscall_64+0xc6/0x1e0
[ 2572.016944][   T73] 
[ 2572.019144][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2572.019144][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2572.019144][   T73]      ipv6_find_idev+0x102/0x170
[ 2572.019144][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2572.019144][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2572.019144][   T73]      netlink_rcv_skb+0x130/0x360
[ 2572.019144][   T73]      netlink_unicast+0x449/0x710
[ 2572.019144][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2572.019144][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2572.019144][   T73]      ___sys_sendmsg+0xee/0x170
[ 2572.019144][   T73]      __sys_sendmsg+0xcd/0x170
[ 2572.019144][   T73]      do_syscall_64+0xc6/0x1e0
[ 2572.019144][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2572.019144][   T73] 
[ 2572.020862][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2572.020862][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2572.020862][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2572.020862][   T73]      ipv6_find_idev+0x102/0x170
[ 2572.020862][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2572.020862][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2572.020862][   T73]      netlink_rcv_skb+0x130/0x360
[ 2572.020862][   T73]      netlink_unicast+0x449/0x710
[ 2572.020862][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2572.020862][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2572.020862][   T73]      ___sys_sendmsg+0xee/0x170
[ 2572.020862][   T73]      __sys_sendmsg+0xcd/0x170
[ 2572.020862][   T73]      do_syscall_64+0xc6/0x1e0
[ 2572.020862][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2572.020862][   T73] 
[ 2582.143778][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2582.144317][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2582.144317][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2582.144317][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2582.144317][   T73]      fib6_nh_init+0xa22/0x1580
[ 2582.144317][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2582.144317][   T73]      ip6_route_add+0x1c/0x140
[ 2582.144317][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2582.144317][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2582.144317][   T73]      netlink_rcv_skb+0x130/0x360
[ 2582.144317][   T73]      netlink_unicast+0x449/0x710
[ 2582.144317][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2582.144317][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2582.144317][   T73]      ___sys_sendmsg+0xee/0x170
[ 2582.144317][   T73]      __sys_sendmsg+0xcd/0x170
[ 2582.144317][   T73]      do_syscall_64+0xc6/0x1e0
[ 2582.144317][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2582.144317][   T73] 
[ 2582.146250][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2582.146250][   T73]      dst_init+0x84/0x4a0
[ 2582.146250][   T73]      dst_alloc+0x97/0x150
[ 2582.146250][   T73]      ip6_dst_alloc+0x23/0x90
[ 2582.146250][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2582.146250][   T73]      ip6_pol_route+0x56f/0x840
[ 2582.146250][   T73]      fib6_rule_lookup+0x456/0x630
[ 2582.146250][   T73]      ip6_route_input+0x59c/0xa50
[ 2582.146250][   T73]      ipv6_rcv+0x397/0x810
[ 2582.146250][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2582.146250][   T73]      process_backlog+0x101/0x620
[ 2582.146250][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2582.146250][   T73]      net_rx_action+0x495/0xbe0
[ 2582.146250][   T73]      __do_softirq+0x1b5/0x7f6
[ 2582.146250][   T73] 
[ 2582.147896][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2582.147896][   T73]      netdev_get_by_index+0x5e/0x80
[ 2582.147896][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2582.147896][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2582.147896][   T73]      ip6_route_add+0x1c/0x140
[ 2582.147896][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2582.147896][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2582.147896][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2582.147896][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2582.147896][   T73]      netlink_rcv_skb+0x130/0x360
[ 2582.147896][   T73]      netlink_unicast+0x449/0x710
[ 2582.147896][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2582.147896][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2582.147896][   T73]      ___sys_sendmsg+0xee/0x170
[ 2582.147896][   T73]      __sys_sendmsg+0xcd/0x170
[ 2582.147896][   T73]      do_syscall_64+0xc6/0x1e0
[ 2582.147896][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2582.147896][   T73] 
[ 2582.149891][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2582.149891][   T73]      netdev_get_by_index+0x5e/0x80
[ 2582.149891][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2582.149891][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2582.149891][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2582.149891][   T73]      ipv6_add_addr+0x411/0x2000
[ 2582.149891][   T73]      inet6_addr_add+0x30e/0xa40
[ 2582.149891][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2582.149891][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2582.149891][   T73]      netlink_rcv_skb+0x130/0x360
[ 2582.149891][   T73]      netlink_unicast+0x449/0x710
[ 2582.149891][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2582.149891][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2582.149891][   T73]      ___sys_sendmsg+0xee/0x170
[ 2582.149891][   T73]      __sys_sendmsg+0xcd/0x170
[ 2582.149891][   T73]      do_syscall_64+0xc6/0x1e0
[ 2582.149891][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2582.149891][   T73] 
[ 2582.151907][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2582.151907][   T73]      netdev_get_by_index+0x5e/0x80
[ 2582.151907][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2582.151907][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2582.151907][   T73]      ip6_route_add+0x1c/0x140
[ 2582.151907][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2582.151907][   T73]      addrconf_add_dev+0xe2/0x170
[ 2582.151907][   T73]      inet6_addr_add+0x12f/0xa40
[ 2582.151907][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2582.151907][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2582.151907][   T73]      netlink_rcv_skb+0x130/0x360
[ 2582.151907][   T73]      netlink_unicast+0x449/0x710
[ 2582.151907][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2582.151907][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2582.151907][   T73]      ___sys_sendmsg+0xee/0x170
[ 2582.151907][   T73]      __sys_sendmsg+0xcd/0x170
[ 2582.151907][   T73]      do_syscall_64+0xc6/0x1e0
[ 2582.151907][   T73] 
[ 2582.153906][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2582.153906][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2582.153906][   T73]      ipv6_find_idev+0x102/0x170
[ 2582.153906][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2582.153906][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2582.153906][   T73]      netlink_rcv_skb+0x130/0x360
[ 2582.153906][   T73]      netlink_unicast+0x449/0x710
[ 2582.153906][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2582.153906][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2582.153906][   T73]      ___sys_sendmsg+0xee/0x170
[ 2582.153906][   T73]      __sys_sendmsg+0xcd/0x170
[ 2582.153906][   T73]      do_syscall_64+0xc6/0x1e0
[ 2582.153906][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2582.153906][   T73] 
[ 2582.155453][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2582.155453][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2582.155453][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2582.155453][   T73]      ipv6_find_idev+0x102/0x170
[ 2582.155453][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2582.155453][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2582.155453][   T73]      netlink_rcv_skb+0x130/0x360
[ 2582.155453][   T73]      netlink_unicast+0x449/0x710
[ 2582.155453][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2582.155453][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2582.155453][   T73]      ___sys_sendmsg+0xee/0x170
[ 2582.155453][   T73]      __sys_sendmsg+0xcd/0x170
[ 2582.155453][   T73]      do_syscall_64+0xc6/0x1e0
[ 2582.155453][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2582.155453][   T73] 
[ 2582.157164][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2582.157456][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2582.157456][   T73]      netdev_get_by_index+0x5e/0x80
[ 2582.157456][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2582.157456][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2582.157456][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2582.157456][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2582.157456][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2582.157456][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2582.157456][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2582.157456][   T73]      addrconf_dad_begin+0x310/0x670
[ 2582.157456][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2582.157456][   T73]      process_one_work+0x84d/0x18a0
[ 2582.157456][   T73]      worker_thread+0x587/0xd30
[ 2582.157456][   T73]      kthread+0x28a/0x350
[ 2582.157456][   T73]      ret_from_fork+0x31/0x70
[ 2582.157456][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2582.157456][   T73] 
[ 2582.159380][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2582.159380][   T73]      netdev_get_by_index+0x5e/0x80
[ 2582.159380][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2582.159380][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2582.159380][   T73]      ip6_route_add+0x1c/0x140
[ 2582.159380][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2582.159380][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2582.159380][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2582.159380][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2582.159380][   T73]      netlink_rcv_skb+0x130/0x360
[ 2582.159380][   T73]      netlink_unicast+0x449/0x710
[ 2582.159380][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2582.159380][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2582.159380][   T73]      ___sys_sendmsg+0xee/0x170
[ 2582.159380][   T73]      __sys_sendmsg+0xcd/0x170
[ 2582.159380][   T73]      do_syscall_64+0xc6/0x1e0
[ 2582.159380][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2582.159380][   T73] 
[ 2582.161392][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2582.161392][   T73]      netdev_get_by_index+0x5e/0x80
[ 2582.161392][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2582.161392][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2582.161392][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2582.161392][   T73]      ipv6_add_addr+0x411/0x2000
[ 2582.161392][   T73]      inet6_addr_add+0x30e/0xa40
[ 2582.161392][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2582.161392][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2582.161392][   T73]      netlink_rcv_skb+0x130/0x360
[ 2582.161392][   T73]      netlink_unicast+0x449/0x710
[ 2582.161392][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2582.161392][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2582.161392][   T73]      ___sys_sendmsg+0xee/0x170
[ 2582.161392][   T73]      __sys_sendmsg+0xcd/0x170
[ 2582.161392][   T73]      do_syscall_64+0xc6/0x1e0
[ 2582.161392][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2582.161392][   T73] 
[ 2582.163422][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2582.163422][   T73]      netdev_get_by_index+0x5e/0x80
[ 2582.163422][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2582.163422][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2582.163422][   T73]      ip6_route_add+0x1c/0x140
[ 2582.163422][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2582.163422][   T73]      addrconf_add_dev+0xe2/0x170
[ 2582.163422][   T73]      inet6_addr_add+0x12f/0xa40
[ 2582.163422][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2582.163422][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2582.163422][   T73]      netlink_rcv_skb+0x130/0x360
[ 2582.163422][   T73]      netlink_unicast+0x449/0x710
[ 2582.163422][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2582.163422][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2582.163422][   T73]      ___sys_sendmsg+0xee/0x170
[ 2582.163422][   T73]      __sys_sendmsg+0xcd/0x170
[ 2582.163422][   T73]      do_syscall_64+0xc6/0x1e0
[ 2582.163422][   T73] 
[ 2582.165401][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2582.165401][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2582.165401][   T73]      ipv6_find_idev+0x102/0x170
[ 2582.165401][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2582.165401][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2582.165401][   T73]      netlink_rcv_skb+0x130/0x360
[ 2582.165401][   T73]      netlink_unicast+0x449/0x710
[ 2582.165401][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2582.165401][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2582.165401][   T73]      ___sys_sendmsg+0xee/0x170
[ 2582.165401][   T73]      __sys_sendmsg+0xcd/0x170
[ 2582.165401][   T73]      do_syscall_64+0xc6/0x1e0
[ 2582.165401][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2582.165401][   T73] 
[ 2582.166948][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2582.166948][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2582.166948][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2582.166948][   T73]      ipv6_find_idev+0x102/0x170
[ 2582.166948][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2582.166948][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2582.166948][   T73]      netlink_rcv_skb+0x130/0x360
[ 2582.166948][   T73]      netlink_unicast+0x449/0x710
[ 2582.166948][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2582.166948][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2582.166948][   T73]      ___sys_sendmsg+0xee/0x170
[ 2582.166948][   T73]      __sys_sendmsg+0xcd/0x170
[ 2582.166948][   T73]      do_syscall_64+0xc6/0x1e0
[ 2582.166948][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2582.166948][   T73] 
[ 2582.168630][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2582.168911][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2582.168911][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2582.168911][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2582.168911][   T73]      fib6_nh_init+0xa22/0x1580
[ 2582.168911][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2582.168911][   T73]      ip6_route_add+0x1c/0x140
[ 2582.168911][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2582.168911][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2582.168911][   T73]      netlink_rcv_skb+0x130/0x360
[ 2582.168911][   T73]      netlink_unicast+0x449/0x710
[ 2582.168911][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2582.168911][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2582.168911][   T73]      ___sys_sendmsg+0xee/0x170
[ 2582.168911][   T73]      __sys_sendmsg+0xcd/0x170
[ 2582.168911][   T73]      do_syscall_64+0xc6/0x1e0
[ 2582.168911][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2582.168911][   T73] 
[ 2582.170983][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2582.170983][   T73]      dst_init+0x84/0x4a0
[ 2582.170983][   T73]      dst_alloc+0x97/0x150
[ 2582.170983][   T73]      ip6_dst_alloc+0x23/0x90
[ 2582.170983][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2582.170983][   T73]      ip6_pol_route+0x56f/0x840
[ 2582.170983][   T73]      fib6_rule_lookup+0x456/0x630
[ 2582.170983][   T73]      ip6_route_input+0x59c/0xa50
[ 2582.170983][   T73]      ipv6_rcv+0x397/0x810
[ 2582.170983][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2582.170983][   T73]      process_backlog+0x101/0x620
[ 2582.170983][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2582.170983][   T73]      net_rx_action+0x495/0xbe0
[ 2582.170983][   T73]      __do_softirq+0x1b5/0x7f6
[ 2582.170983][   T73] 
[ 2582.172811][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2582.172811][   T73]      netdev_get_by_index+0x5e/0x80
[ 2582.172811][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2582.172811][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2582.172811][   T73]      ip6_route_add+0x1c/0x140
[ 2582.172811][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2582.172811][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2582.172811][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2582.172811][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2582.172811][   T73]      netlink_rcv_skb+0x130/0x360
[ 2582.172811][   T73]      netlink_unicast+0x449/0x710
[ 2582.172811][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2582.172811][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2582.172811][   T73]      ___sys_sendmsg+0xee/0x170
[ 2582.172811][   T73]      __sys_sendmsg+0xcd/0x170
[ 2582.172811][   T73]      do_syscall_64+0xc6/0x1e0
[ 2582.172811][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2582.172811][   T73] 
[ 2582.175116][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2582.175116][   T73]      netdev_get_by_index+0x5e/0x80
[ 2582.175116][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2582.175116][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2582.175116][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2582.175116][   T73]      ipv6_add_addr+0x411/0x2000
[ 2582.175116][   T73]      inet6_addr_add+0x30e/0xa40
[ 2582.175116][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2582.175116][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2582.175116][   T73]      netlink_rcv_skb+0x130/0x360
[ 2582.175116][   T73]      netlink_unicast+0x449/0x710
[ 2582.175116][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2582.175116][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2582.175116][   T73]      ___sys_sendmsg+0xee/0x170
[ 2582.175116][   T73]      __sys_sendmsg+0xcd/0x170
[ 2582.175116][   T73]      do_syscall_64+0xc6/0x1e0
[ 2582.175116][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2582.175116][   T73] 
[ 2582.177374][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2582.177374][   T73]      netdev_get_by_index+0x5e/0x80
[ 2582.177374][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2582.177374][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2582.177374][   T73]      ip6_route_add+0x1c/0x140
[ 2582.177374][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2582.177374][   T73]      addrconf_add_dev+0xe2/0x170
[ 2582.177374][   T73]      inet6_addr_add+0x12f/0xa40
[ 2582.177374][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2582.177374][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2582.177374][   T73]      netlink_rcv_skb+0x130/0x360
[ 2582.177374][   T73]      netlink_unicast+0x449/0x710
[ 2582.177374][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2582.177374][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2582.177374][   T73]      ___sys_sendmsg+0xee/0x170
[ 2582.177374][   T73]      __sys_sendmsg+0xcd/0x170
[ 2582.177374][   T73]      do_syscall_64+0xc6/0x1e0
[ 2582.177374][   T73] 
[ 2582.179531][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2582.179531][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2582.179531][   T73]      ipv6_find_idev+0x102/0x170
[ 2582.179531][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2582.179531][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2582.179531][   T73]      netlink_rcv_skb+0x130/0x360
[ 2582.179531][   T73]      netlink_unicast+0x449/0x710
[ 2582.179531][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2582.179531][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2582.179531][   T73]      ___sys_sendmsg+0xee/0x170
[ 2582.179531][   T73]      __sys_sendmsg+0xcd/0x170
[ 2582.179531][   T73]      do_syscall_64+0xc6/0x1e0
[ 2582.179531][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2582.179531][   T73] 
[ 2582.181213][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2582.181213][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2582.181213][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2582.181213][   T73]      ipv6_find_idev+0x102/0x170
[ 2582.181213][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2582.181213][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2582.181213][   T73]      netlink_rcv_skb+0x130/0x360
[ 2582.181213][   T73]      netlink_unicast+0x449/0x710
[ 2582.181213][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2582.181213][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2582.181213][   T73]      ___sys_sendmsg+0xee/0x170
[ 2582.181213][   T73]      __sys_sendmsg+0xcd/0x170
[ 2582.181213][   T73]      do_syscall_64+0xc6/0x1e0
[ 2582.181213][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2582.181213][   T73] 
[ 2582.183140][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2582.183420][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2582.183420][   T73]      netdev_get_by_index+0x5e/0x80
[ 2582.183420][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2582.183420][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2582.183420][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2582.183420][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2582.183420][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2582.183420][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2582.183420][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2582.183420][   T73]      addrconf_dad_begin+0x310/0x670
[ 2582.183420][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2582.183420][   T73]      process_one_work+0x84d/0x18a0
[ 2582.183420][   T73]      worker_thread+0x587/0xd30
[ 2582.183420][   T73]      kthread+0x28a/0x350
[ 2582.183420][   T73]      ret_from_fork+0x31/0x70
[ 2582.183420][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2582.183420][   T73] 
[ 2582.185636][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2582.185636][   T73]      netdev_get_by_index+0x5e/0x80
[ 2582.185636][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2582.185636][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2582.185636][   T73]      ip6_route_add+0x1c/0x140
[ 2582.185636][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2582.185636][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2582.185636][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2582.185636][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2582.185636][   T73]      netlink_rcv_skb+0x130/0x360
[ 2582.185636][   T73]      netlink_unicast+0x449/0x710
[ 2582.185636][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2582.185636][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2582.185636][   T73]      ___sys_sendmsg+0xee/0x170
[ 2582.185636][   T73]      __sys_sendmsg+0xcd/0x170
[ 2582.185636][   T73]      do_syscall_64+0xc6/0x1e0
[ 2582.185636][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2582.185636][   T73] 
[ 2582.187783][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2582.187783][   T73]      netdev_get_by_index+0x5e/0x80
[ 2582.187783][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2582.187783][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2582.187783][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2582.187783][   T73]      ipv6_add_addr+0x411/0x2000
[ 2582.187783][   T73]      inet6_addr_add+0x30e/0xa40
[ 2582.187783][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2582.187783][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2582.187783][   T73]      netlink_rcv_skb+0x130/0x360
[ 2582.187783][   T73]      netlink_unicast+0x449/0x710
[ 2582.187783][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2582.187783][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2582.187783][   T73]      ___sys_sendmsg+0xee/0x170
[ 2582.187783][   T73]      __sys_sendmsg+0xcd/0x170
[ 2582.187783][   T73]      do_syscall_64+0xc6/0x1e0
[ 2582.187783][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2582.187783][   T73] 
[ 2582.190072][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2582.190072][   T73]      netdev_get_by_index+0x5e/0x80
[ 2582.190072][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2582.190072][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2582.190072][   T73]      ip6_route_add+0x1c/0x140
[ 2582.190072][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2582.190072][   T73]      addrconf_add_dev+0xe2/0x170
[ 2582.190072][   T73]      inet6_addr_add+0x12f/0xa40
[ 2582.190072][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2582.190072][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2582.190072][   T73]      netlink_rcv_skb+0x130/0x360
[ 2582.190072][   T73]      netlink_unicast+0x449/0x710
[ 2582.190072][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2582.190072][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2582.190072][   T73]      ___sys_sendmsg+0xee/0x170
[ 2582.190072][   T73]      __sys_sendmsg+0xcd/0x170
[ 2582.190072][   T73]      do_syscall_64+0xc6/0x1e0
[ 2582.190072][   T73] 
[ 2582.192278][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2582.192278][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2582.192278][   T73]      ipv6_find_idev+0x102/0x170
[ 2582.192278][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2582.192278][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2582.192278][   T73]      netlink_rcv_skb+0x130/0x360
[ 2582.192278][   T73]      netlink_unicast+0x449/0x710
[ 2582.192278][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2582.192278][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2582.192278][   T73]      ___sys_sendmsg+0xee/0x170
[ 2582.192278][   T73]      __sys_sendmsg+0xcd/0x170
[ 2582.192278][   T73]      do_syscall_64+0xc6/0x1e0
[ 2582.192278][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2582.192278][   T73] 
[ 2582.194092][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2582.194092][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2582.194092][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2582.194092][   T73]      ipv6_find_idev+0x102/0x170
[ 2582.194092][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2582.194092][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2582.194092][   T73]      netlink_rcv_skb+0x130/0x360
[ 2582.194092][   T73]      netlink_unicast+0x449/0x710
[ 2582.194092][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2582.194092][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2582.194092][   T73]      ___sys_sendmsg+0xee/0x170
[ 2582.194092][   T73]      __sys_sendmsg+0xcd/0x170
[ 2582.194092][   T73]      do_syscall_64+0xc6/0x1e0
[ 2582.194092][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2582.194092][   T73] 
[ 2592.287767][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2592.288261][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2592.288261][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2592.288261][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2592.288261][   T73]      fib6_nh_init+0xa22/0x1580
[ 2592.288261][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2592.288261][   T73]      ip6_route_add+0x1c/0x140
[ 2592.288261][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2592.288261][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2592.288261][   T73]      netlink_rcv_skb+0x130/0x360
[ 2592.288261][   T73]      netlink_unicast+0x449/0x710
[ 2592.288261][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2592.288261][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2592.288261][   T73]      ___sys_sendmsg+0xee/0x170
[ 2592.288261][   T73]      __sys_sendmsg+0xcd/0x170
[ 2592.288261][   T73]      do_syscall_64+0xc6/0x1e0
[ 2592.288261][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2592.288261][   T73] 
[ 2592.290162][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2592.290162][   T73]      dst_init+0x84/0x4a0
[ 2592.290162][   T73]      dst_alloc+0x97/0x150
[ 2592.290162][   T73]      ip6_dst_alloc+0x23/0x90
[ 2592.290162][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2592.290162][   T73]      ip6_pol_route+0x56f/0x840
[ 2592.290162][   T73]      fib6_rule_lookup+0x456/0x630
[ 2592.290162][   T73]      ip6_route_input+0x59c/0xa50
[ 2592.290162][   T73]      ipv6_rcv+0x397/0x810
[ 2592.290162][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2592.290162][   T73]      process_backlog+0x101/0x620
[ 2592.290162][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2592.290162][   T73]      net_rx_action+0x495/0xbe0
[ 2592.290162][   T73]      __do_softirq+0x1b5/0x7f6
[ 2592.290162][   T73] 
[ 2592.291812][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2592.291812][   T73]      netdev_get_by_index+0x5e/0x80
[ 2592.291812][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2592.291812][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2592.291812][   T73]      ip6_route_add+0x1c/0x140
[ 2592.291812][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2592.291812][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2592.291812][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2592.291812][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2592.291812][   T73]      netlink_rcv_skb+0x130/0x360
[ 2592.291812][   T73]      netlink_unicast+0x449/0x710
[ 2592.291812][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2592.291812][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2592.291812][   T73]      ___sys_sendmsg+0xee/0x170
[ 2592.291812][   T73]      __sys_sendmsg+0xcd/0x170
[ 2592.291812][   T73]      do_syscall_64+0xc6/0x1e0
[ 2592.291812][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2592.291812][   T73] 
[ 2592.293831][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2592.293831][   T73]      netdev_get_by_index+0x5e/0x80
[ 2592.293831][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2592.293831][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2592.293831][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2592.293831][   T73]      ipv6_add_addr+0x411/0x2000
[ 2592.293831][   T73]      inet6_addr_add+0x30e/0xa40
[ 2592.293831][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2592.293831][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2592.293831][   T73]      netlink_rcv_skb+0x130/0x360
[ 2592.293831][   T73]      netlink_unicast+0x449/0x710
[ 2592.293831][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2592.293831][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2592.293831][   T73]      ___sys_sendmsg+0xee/0x170
[ 2592.293831][   T73]      __sys_sendmsg+0xcd/0x170
[ 2592.293831][   T73]      do_syscall_64+0xc6/0x1e0
[ 2592.293831][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2592.293831][   T73] 
[ 2592.295828][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2592.295828][   T73]      netdev_get_by_index+0x5e/0x80
[ 2592.295828][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2592.295828][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2592.295828][   T73]      ip6_route_add+0x1c/0x140
[ 2592.295828][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2592.295828][   T73]      addrconf_add_dev+0xe2/0x170
[ 2592.295828][   T73]      inet6_addr_add+0x12f/0xa40
[ 2592.295828][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2592.295828][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2592.295828][   T73]      netlink_rcv_skb+0x130/0x360
[ 2592.295828][   T73]      netlink_unicast+0x449/0x710
[ 2592.295828][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2592.295828][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2592.295828][   T73]      ___sys_sendmsg+0xee/0x170
[ 2592.295828][   T73]      __sys_sendmsg+0xcd/0x170
[ 2592.295828][   T73]      do_syscall_64+0xc6/0x1e0
[ 2592.295828][   T73] 
[ 2592.297808][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2592.297808][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2592.297808][   T73]      ipv6_find_idev+0x102/0x170
[ 2592.297808][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2592.297808][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2592.297808][   T73]      netlink_rcv_skb+0x130/0x360
[ 2592.297808][   T73]      netlink_unicast+0x449/0x710
[ 2592.297808][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2592.297808][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2592.297808][   T73]      ___sys_sendmsg+0xee/0x170
[ 2592.297808][   T73]      __sys_sendmsg+0xcd/0x170
[ 2592.297808][   T73]      do_syscall_64+0xc6/0x1e0
[ 2592.297808][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2592.297808][   T73] 
[ 2592.299402][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2592.299402][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2592.299402][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2592.299402][   T73]      ipv6_find_idev+0x102/0x170
[ 2592.299402][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2592.299402][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2592.299402][   T73]      netlink_rcv_skb+0x130/0x360
[ 2592.299402][   T73]      netlink_unicast+0x449/0x710
[ 2592.299402][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2592.299402][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2592.299402][   T73]      ___sys_sendmsg+0xee/0x170
[ 2592.299402][   T73]      __sys_sendmsg+0xcd/0x170
[ 2592.299402][   T73]      do_syscall_64+0xc6/0x1e0
[ 2592.299402][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2592.299402][   T73] 
[ 2592.301100][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2592.301384][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2592.301384][   T73]      netdev_get_by_index+0x5e/0x80
[ 2592.301384][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2592.301384][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2592.301384][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2592.301384][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2592.301384][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2592.301384][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2592.301384][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2592.301384][   T73]      addrconf_dad_begin+0x310/0x670
[ 2592.301384][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2592.301384][   T73]      process_one_work+0x84d/0x18a0
[ 2592.301384][   T73]      worker_thread+0x587/0xd30
[ 2592.301384][   T73]      kthread+0x28a/0x350
[ 2592.301384][   T73]      ret_from_fork+0x31/0x70
[ 2592.301384][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2592.301384][   T73] 
[ 2592.303310][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2592.303310][   T73]      netdev_get_by_index+0x5e/0x80
[ 2592.303310][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2592.303310][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2592.303310][   T73]      ip6_route_add+0x1c/0x140
[ 2592.303310][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2592.303310][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2592.303310][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2592.303310][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2592.303310][   T73]      netlink_rcv_skb+0x130/0x360
[ 2592.303310][   T73]      netlink_unicast+0x449/0x710
[ 2592.303310][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2592.303310][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2592.303310][   T73]      ___sys_sendmsg+0xee/0x170
[ 2592.303310][   T73]      __sys_sendmsg+0xcd/0x170
[ 2592.303310][   T73]      do_syscall_64+0xc6/0x1e0
[ 2592.303310][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2592.303310][   T73] 
[ 2592.305306][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2592.305306][   T73]      netdev_get_by_index+0x5e/0x80
[ 2592.305306][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2592.305306][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2592.305306][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2592.305306][   T73]      ipv6_add_addr+0x411/0x2000
[ 2592.305306][   T73]      inet6_addr_add+0x30e/0xa40
[ 2592.305306][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2592.305306][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2592.305306][   T73]      netlink_rcv_skb+0x130/0x360
[ 2592.305306][   T73]      netlink_unicast+0x449/0x710
[ 2592.305306][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2592.305306][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2592.305306][   T73]      ___sys_sendmsg+0xee/0x170
[ 2592.305306][   T73]      __sys_sendmsg+0xcd/0x170
[ 2592.305306][   T73]      do_syscall_64+0xc6/0x1e0
[ 2592.305306][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2592.305306][   T73] 
[ 2592.307326][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2592.307326][   T73]      netdev_get_by_index+0x5e/0x80
[ 2592.307326][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2592.307326][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2592.307326][   T73]      ip6_route_add+0x1c/0x140
[ 2592.307326][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2592.307326][   T73]      addrconf_add_dev+0xe2/0x170
[ 2592.307326][   T73]      inet6_addr_add+0x12f/0xa40
[ 2592.307326][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2592.307326][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2592.307326][   T73]      netlink_rcv_skb+0x130/0x360
[ 2592.307326][   T73]      netlink_unicast+0x449/0x710
[ 2592.307326][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2592.307326][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2592.307326][   T73]      ___sys_sendmsg+0xee/0x170
[ 2592.307326][   T73]      __sys_sendmsg+0xcd/0x170
[ 2592.307326][   T73]      do_syscall_64+0xc6/0x1e0
[ 2592.307326][   T73] 
[ 2592.309302][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2592.309302][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2592.309302][   T73]      ipv6_find_idev+0x102/0x170
[ 2592.309302][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2592.309302][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2592.309302][   T73]      netlink_rcv_skb+0x130/0x360
[ 2592.309302][   T73]      netlink_unicast+0x449/0x710
[ 2592.309302][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2592.309302][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2592.309302][   T73]      ___sys_sendmsg+0xee/0x170
[ 2592.309302][   T73]      __sys_sendmsg+0xcd/0x170
[ 2592.309302][   T73]      do_syscall_64+0xc6/0x1e0
[ 2592.309302][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2592.309302][   T73] 
[ 2592.310841][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2592.310841][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2592.310841][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2592.310841][   T73]      ipv6_find_idev+0x102/0x170
[ 2592.310841][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2592.310841][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2592.310841][   T73]      netlink_rcv_skb+0x130/0x360
[ 2592.310841][   T73]      netlink_unicast+0x449/0x710
[ 2592.310841][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2592.310841][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2592.310841][   T73]      ___sys_sendmsg+0xee/0x170
[ 2592.310841][   T73]      __sys_sendmsg+0xcd/0x170
[ 2592.310841][   T73]      do_syscall_64+0xc6/0x1e0
[ 2592.310841][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2592.310841][   T73] 
[ 2592.312556][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2592.312873][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2592.312873][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2592.312873][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2592.312873][   T73]      fib6_nh_init+0xa22/0x1580
[ 2592.312873][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2592.312873][   T73]      ip6_route_add+0x1c/0x140
[ 2592.312873][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2592.312873][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2592.312873][   T73]      netlink_rcv_skb+0x130/0x360
[ 2592.312873][   T73]      netlink_unicast+0x449/0x710
[ 2592.312873][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2592.312873][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2592.312873][   T73]      ___sys_sendmsg+0xee/0x170
[ 2592.312873][   T73]      __sys_sendmsg+0xcd/0x170
[ 2592.312873][   T73]      do_syscall_64+0xc6/0x1e0
[ 2592.312873][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2592.312873][   T73] 
[ 2592.314836][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2592.314836][   T73]      dst_init+0x84/0x4a0
[ 2592.314836][   T73]      dst_alloc+0x97/0x150
[ 2592.314836][   T73]      ip6_dst_alloc+0x23/0x90
[ 2592.314836][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2592.314836][   T73]      ip6_pol_route+0x56f/0x840
[ 2592.314836][   T73]      fib6_rule_lookup+0x456/0x630
[ 2592.314836][   T73]      ip6_route_input+0x59c/0xa50
[ 2592.314836][   T73]      ipv6_rcv+0x397/0x810
[ 2592.314836][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2592.314836][   T73]      process_backlog+0x101/0x620
[ 2592.314836][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2592.314836][   T73]      net_rx_action+0x495/0xbe0
[ 2592.314836][   T73]      __do_softirq+0x1b5/0x7f6
[ 2592.314836][   T73] 
[ 2592.316606][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2592.316606][   T73]      netdev_get_by_index+0x5e/0x80
[ 2592.316606][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2592.316606][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2592.316606][   T73]      ip6_route_add+0x1c/0x140
[ 2592.316606][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2592.316606][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2592.316606][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2592.316606][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2592.316606][   T73]      netlink_rcv_skb+0x130/0x360
[ 2592.316606][   T73]      netlink_unicast+0x449/0x710
[ 2592.316606][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2592.316606][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2592.316606][   T73]      ___sys_sendmsg+0xee/0x170
[ 2592.316606][   T73]      __sys_sendmsg+0xcd/0x170
[ 2592.316606][   T73]      do_syscall_64+0xc6/0x1e0
[ 2592.316606][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2592.316606][   T73] 
[ 2592.318732][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2592.318732][   T73]      netdev_get_by_index+0x5e/0x80
[ 2592.318732][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2592.318732][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2592.318732][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2592.318732][   T73]      ipv6_add_addr+0x411/0x2000
[ 2592.318732][   T73]      inet6_addr_add+0x30e/0xa40
[ 2592.318732][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2592.318732][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2592.318732][   T73]      netlink_rcv_skb+0x130/0x360
[ 2592.318732][   T73]      netlink_unicast+0x449/0x710
[ 2592.318732][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2592.318732][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2592.318732][   T73]      ___sys_sendmsg+0xee/0x170
[ 2592.318732][   T73]      __sys_sendmsg+0xcd/0x170
[ 2592.318732][   T73]      do_syscall_64+0xc6/0x1e0
[ 2592.318732][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2592.318732][   T73] 
[ 2592.320791][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2592.320791][   T73]      netdev_get_by_index+0x5e/0x80
[ 2592.320791][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2592.320791][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2592.320791][   T73]      ip6_route_add+0x1c/0x140
[ 2592.320791][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2592.320791][   T73]      addrconf_add_dev+0xe2/0x170
[ 2592.320791][   T73]      inet6_addr_add+0x12f/0xa40
[ 2592.320791][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2592.320791][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2592.320791][   T73]      netlink_rcv_skb+0x130/0x360
[ 2592.320791][   T73]      netlink_unicast+0x449/0x710
[ 2592.320791][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2592.320791][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2592.320791][   T73]      ___sys_sendmsg+0xee/0x170
[ 2592.320791][   T73]      __sys_sendmsg+0xcd/0x170
[ 2592.320791][   T73]      do_syscall_64+0xc6/0x1e0
[ 2592.320791][   T73] 
[ 2592.322891][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2592.322891][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2592.322891][   T73]      ipv6_find_idev+0x102/0x170
[ 2592.322891][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2592.322891][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2592.322891][   T73]      netlink_rcv_skb+0x130/0x360
[ 2592.322891][   T73]      netlink_unicast+0x449/0x710
[ 2592.322891][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2592.322891][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2592.322891][   T73]      ___sys_sendmsg+0xee/0x170
[ 2592.322891][   T73]      __sys_sendmsg+0xcd/0x170
[ 2592.322891][   T73]      do_syscall_64+0xc6/0x1e0
[ 2592.322891][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2592.322891][   T73] 
[ 2592.324547][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2592.324547][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2592.324547][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2592.324547][   T73]      ipv6_find_idev+0x102/0x170
[ 2592.324547][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2592.324547][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2592.324547][   T73]      netlink_rcv_skb+0x130/0x360
[ 2592.324547][   T73]      netlink_unicast+0x449/0x710
[ 2592.324547][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2592.324547][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2592.324547][   T73]      ___sys_sendmsg+0xee/0x170
[ 2592.324547][   T73]      __sys_sendmsg+0xcd/0x170
[ 2592.324547][   T73]      do_syscall_64+0xc6/0x1e0
[ 2592.324547][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2592.324547][   T73] 
[ 2592.326358][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2592.326656][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2592.326656][   T73]      netdev_get_by_index+0x5e/0x80
[ 2592.326656][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2592.326656][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2592.326656][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2592.326656][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2592.326656][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2592.326656][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2592.326656][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2592.326656][   T73]      addrconf_dad_begin+0x310/0x670
[ 2592.326656][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2592.326656][   T73]      process_one_work+0x84d/0x18a0
[ 2592.326656][   T73]      worker_thread+0x587/0xd30
[ 2592.326656][   T73]      kthread+0x28a/0x350
[ 2592.326656][   T73]      ret_from_fork+0x31/0x70
[ 2592.326656][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2592.326656][   T73] 
[ 2592.328704][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2592.328704][   T73]      netdev_get_by_index+0x5e/0x80
[ 2592.328704][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2592.328704][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2592.328704][   T73]      ip6_route_add+0x1c/0x140
[ 2592.328704][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2592.328704][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2592.328704][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2592.328704][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2592.328704][   T73]      netlink_rcv_skb+0x130/0x360
[ 2592.328704][   T73]      netlink_unicast+0x449/0x710
[ 2592.328704][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2592.328704][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2592.328704][   T73]      ___sys_sendmsg+0xee/0x170
[ 2592.328704][   T73]      __sys_sendmsg+0xcd/0x170
[ 2592.328704][   T73]      do_syscall_64+0xc6/0x1e0
[ 2592.328704][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2592.328704][   T73] 
[ 2592.330757][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2592.330757][   T73]      netdev_get_by_index+0x5e/0x80
[ 2592.330757][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2592.330757][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2592.330757][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2592.330757][   T73]      ipv6_add_addr+0x411/0x2000
[ 2592.330757][   T73]      inet6_addr_add+0x30e/0xa40
[ 2592.330757][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2592.330757][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2592.330757][   T73]      netlink_rcv_skb+0x130/0x360
[ 2592.330757][   T73]      netlink_unicast+0x449/0x710
[ 2592.330757][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2592.330757][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2592.330757][   T73]      ___sys_sendmsg+0xee/0x170
[ 2592.330757][   T73]      __sys_sendmsg+0xcd/0x170
[ 2592.330757][   T73]      do_syscall_64+0xc6/0x1e0
[ 2592.330757][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2592.330757][   T73] 
[ 2592.332917][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2592.332917][   T73]      netdev_get_by_index+0x5e/0x80
[ 2592.332917][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2592.332917][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2592.332917][   T73]      ip6_route_add+0x1c/0x140
[ 2592.332917][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2592.332917][   T73]      addrconf_add_dev+0xe2/0x170
[ 2592.332917][   T73]      inet6_addr_add+0x12f/0xa40
[ 2592.332917][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2592.332917][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2592.332917][   T73]      netlink_rcv_skb+0x130/0x360
[ 2592.332917][   T73]      netlink_unicast+0x449/0x710
[ 2592.332917][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2592.332917][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2592.332917][   T73]      ___sys_sendmsg+0xee/0x170
[ 2592.332917][   T73]      __sys_sendmsg+0xcd/0x170
[ 2592.332917][   T73]      do_syscall_64+0xc6/0x1e0
[ 2592.332917][   T73] 
[ 2592.335831][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2592.335831][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2592.335831][   T73]      ipv6_find_idev+0x102/0x170
[ 2592.335831][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2592.335831][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2592.335831][   T73]      netlink_rcv_skb+0x130/0x360
[ 2592.335831][   T73]      netlink_unicast+0x449/0x710
[ 2592.335831][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2592.335831][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2592.335831][   T73]      ___sys_sendmsg+0xee/0x170
[ 2592.335831][   T73]      __sys_sendmsg+0xcd/0x170
[ 2592.335831][   T73]      do_syscall_64+0xc6/0x1e0
[ 2592.335831][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2592.335831][   T73] 
[ 2592.338329][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2592.338329][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2592.338329][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2592.338329][   T73]      ipv6_find_idev+0x102/0x170
[ 2592.338329][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2592.338329][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2592.338329][   T73]      netlink_rcv_skb+0x130/0x360
[ 2592.338329][   T73]      netlink_unicast+0x449/0x710
[ 2592.338329][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2592.338329][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2592.338329][   T73]      ___sys_sendmsg+0xee/0x170
[ 2592.338329][   T73]      __sys_sendmsg+0xcd/0x170
[ 2592.338329][   T73]      do_syscall_64+0xc6/0x1e0
[ 2592.338329][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2592.338329][   T73] 
[ 2602.583743][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2602.584247][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2602.584247][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2602.584247][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2602.584247][   T73]      fib6_nh_init+0xa22/0x1580
[ 2602.584247][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2602.584247][   T73]      ip6_route_add+0x1c/0x140
[ 2602.584247][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2602.584247][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2602.584247][   T73]      netlink_rcv_skb+0x130/0x360
[ 2602.584247][   T73]      netlink_unicast+0x449/0x710
[ 2602.584247][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2602.584247][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2602.584247][   T73]      ___sys_sendmsg+0xee/0x170
[ 2602.584247][   T73]      __sys_sendmsg+0xcd/0x170
[ 2602.584247][   T73]      do_syscall_64+0xc6/0x1e0
[ 2602.584247][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2602.584247][   T73] 
[ 2602.586148][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2602.586148][   T73]      dst_init+0x84/0x4a0
[ 2602.586148][   T73]      dst_alloc+0x97/0x150
[ 2602.586148][   T73]      ip6_dst_alloc+0x23/0x90
[ 2602.586148][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2602.586148][   T73]      ip6_pol_route+0x56f/0x840
[ 2602.586148][   T73]      fib6_rule_lookup+0x456/0x630
[ 2602.586148][   T73]      ip6_route_input+0x59c/0xa50
[ 2602.586148][   T73]      ipv6_rcv+0x397/0x810
[ 2602.586148][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2602.586148][   T73]      process_backlog+0x101/0x620
[ 2602.586148][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2602.586148][   T73]      net_rx_action+0x495/0xbe0
[ 2602.586148][   T73]      __do_softirq+0x1b5/0x7f6
[ 2602.586148][   T73] 
[ 2602.587816][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2602.587816][   T73]      netdev_get_by_index+0x5e/0x80
[ 2602.587816][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2602.587816][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2602.587816][   T73]      ip6_route_add+0x1c/0x140
[ 2602.587816][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2602.587816][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2602.587816][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2602.587816][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2602.587816][   T73]      netlink_rcv_skb+0x130/0x360
[ 2602.587816][   T73]      netlink_unicast+0x449/0x710
[ 2602.587816][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2602.587816][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2602.587816][   T73]      ___sys_sendmsg+0xee/0x170
[ 2602.587816][   T73]      __sys_sendmsg+0xcd/0x170
[ 2602.587816][   T73]      do_syscall_64+0xc6/0x1e0
[ 2602.587816][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2602.587816][   T73] 
[ 2602.589811][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2602.589811][   T73]      netdev_get_by_index+0x5e/0x80
[ 2602.589811][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2602.589811][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2602.589811][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2602.589811][   T73]      ipv6_add_addr+0x411/0x2000
[ 2602.589811][   T73]      inet6_addr_add+0x30e/0xa40
[ 2602.589811][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2602.589811][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2602.589811][   T73]      netlink_rcv_skb+0x130/0x360
[ 2602.589811][   T73]      netlink_unicast+0x449/0x710
[ 2602.589811][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2602.589811][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2602.589811][   T73]      ___sys_sendmsg+0xee/0x170
[ 2602.589811][   T73]      __sys_sendmsg+0xcd/0x170
[ 2602.589811][   T73]      do_syscall_64+0xc6/0x1e0
[ 2602.589811][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2602.589811][   T73] 
[ 2602.591836][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2602.591836][   T73]      netdev_get_by_index+0x5e/0x80
[ 2602.591836][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2602.591836][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2602.591836][   T73]      ip6_route_add+0x1c/0x140
[ 2602.591836][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2602.591836][   T73]      addrconf_add_dev+0xe2/0x170
[ 2602.591836][   T73]      inet6_addr_add+0x12f/0xa40
[ 2602.591836][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2602.591836][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2602.591836][   T73]      netlink_rcv_skb+0x130/0x360
[ 2602.591836][   T73]      netlink_unicast+0x449/0x710
[ 2602.591836][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2602.591836][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2602.591836][   T73]      ___sys_sendmsg+0xee/0x170
[ 2602.591836][   T73]      __sys_sendmsg+0xcd/0x170
[ 2602.591836][   T73]      do_syscall_64+0xc6/0x1e0
[ 2602.591836][   T73] 
[ 2602.594362][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2602.594362][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2602.594362][   T73]      ipv6_find_idev+0x102/0x170
[ 2602.594362][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2602.594362][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2602.594362][   T73]      netlink_rcv_skb+0x130/0x360
[ 2602.594362][   T73]      netlink_unicast+0x449/0x710
[ 2602.594362][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2602.594362][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2602.594362][   T73]      ___sys_sendmsg+0xee/0x170
[ 2602.594362][   T73]      __sys_sendmsg+0xcd/0x170
[ 2602.594362][   T73]      do_syscall_64+0xc6/0x1e0
[ 2602.594362][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2602.594362][   T73] 
[ 2602.595899][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2602.595899][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2602.595899][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2602.595899][   T73]      ipv6_find_idev+0x102/0x170
[ 2602.595899][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2602.595899][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2602.595899][   T73]      netlink_rcv_skb+0x130/0x360
[ 2602.595899][   T73]      netlink_unicast+0x449/0x710
[ 2602.595899][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2602.595899][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2602.595899][   T73]      ___sys_sendmsg+0xee/0x170
[ 2602.595899][   T73]      __sys_sendmsg+0xcd/0x170
[ 2602.595899][   T73]      do_syscall_64+0xc6/0x1e0
[ 2602.595899][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2602.595899][   T73] 
[ 2602.597590][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2602.597888][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2602.597888][   T73]      netdev_get_by_index+0x5e/0x80
[ 2602.597888][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2602.597888][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2602.597888][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2602.597888][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2602.597888][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2602.597888][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2602.597888][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2602.597888][   T73]      addrconf_dad_begin+0x310/0x670
[ 2602.597888][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2602.597888][   T73]      process_one_work+0x84d/0x18a0
[ 2602.597888][   T73]      worker_thread+0x587/0xd30
[ 2602.597888][   T73]      kthread+0x28a/0x350
[ 2602.597888][   T73]      ret_from_fork+0x31/0x70
[ 2602.597888][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2602.597888][   T73] 
[ 2602.599811][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2602.599811][   T73]      netdev_get_by_index+0x5e/0x80
[ 2602.599811][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2602.599811][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2602.599811][   T73]      ip6_route_add+0x1c/0x140
[ 2602.599811][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2602.599811][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2602.599811][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2602.599811][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2602.599811][   T73]      netlink_rcv_skb+0x130/0x360
[ 2602.599811][   T73]      netlink_unicast+0x449/0x710
[ 2602.599811][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2602.599811][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2602.599811][   T73]      ___sys_sendmsg+0xee/0x170
[ 2602.599811][   T73]      __sys_sendmsg+0xcd/0x170
[ 2602.599811][   T73]      do_syscall_64+0xc6/0x1e0
[ 2602.599811][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2602.599811][   T73] 
[ 2602.601792][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2602.601792][   T73]      netdev_get_by_index+0x5e/0x80
[ 2602.601792][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2602.601792][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2602.601792][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2602.601792][   T73]      ipv6_add_addr+0x411/0x2000
[ 2602.601792][   T73]      inet6_addr_add+0x30e/0xa40
[ 2602.601792][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2602.601792][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2602.601792][   T73]      netlink_rcv_skb+0x130/0x360
[ 2602.601792][   T73]      netlink_unicast+0x449/0x710
[ 2602.601792][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2602.601792][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2602.601792][   T73]      ___sys_sendmsg+0xee/0x170
[ 2602.601792][   T73]      __sys_sendmsg+0xcd/0x170
[ 2602.601792][   T73]      do_syscall_64+0xc6/0x1e0
[ 2602.601792][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2602.601792][   T73] 
[ 2602.603849][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2602.603849][   T73]      netdev_get_by_index+0x5e/0x80
[ 2602.603849][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2602.603849][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2602.603849][   T73]      ip6_route_add+0x1c/0x140
[ 2602.603849][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2602.603849][   T73]      addrconf_add_dev+0xe2/0x170
[ 2602.603849][   T73]      inet6_addr_add+0x12f/0xa40
[ 2602.603849][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2602.603849][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2602.603849][   T73]      netlink_rcv_skb+0x130/0x360
[ 2602.603849][   T73]      netlink_unicast+0x449/0x710
[ 2602.603849][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2602.603849][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2602.603849][   T73]      ___sys_sendmsg+0xee/0x170
[ 2602.603849][   T73]      __sys_sendmsg+0xcd/0x170
[ 2602.603849][   T73]      do_syscall_64+0xc6/0x1e0
[ 2602.603849][   T73] 
[ 2602.605812][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2602.605812][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2602.605812][   T73]      ipv6_find_idev+0x102/0x170
[ 2602.605812][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2602.605812][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2602.605812][   T73]      netlink_rcv_skb+0x130/0x360
[ 2602.605812][   T73]      netlink_unicast+0x449/0x710
[ 2602.605812][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2602.605812][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2602.605812][   T73]      ___sys_sendmsg+0xee/0x170
[ 2602.605812][   T73]      __sys_sendmsg+0xcd/0x170
[ 2602.605812][   T73]      do_syscall_64+0xc6/0x1e0
[ 2602.605812][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2602.605812][   T73] 
[ 2602.607365][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2602.607365][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2602.607365][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2602.607365][   T73]      ipv6_find_idev+0x102/0x170
[ 2602.607365][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2602.607365][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2602.607365][   T73]      netlink_rcv_skb+0x130/0x360
[ 2602.607365][   T73]      netlink_unicast+0x449/0x710
[ 2602.607365][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2602.607365][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2602.607365][   T73]      ___sys_sendmsg+0xee/0x170
[ 2602.607365][   T73]      __sys_sendmsg+0xcd/0x170
[ 2602.607365][   T73]      do_syscall_64+0xc6/0x1e0
[ 2602.607365][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2602.607365][   T73] 
[ 2602.609047][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2602.609318][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2602.609318][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2602.609318][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2602.609318][   T73]      fib6_nh_init+0xa22/0x1580
[ 2602.609318][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2602.609318][   T73]      ip6_route_add+0x1c/0x140
[ 2602.609318][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2602.609318][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2602.609318][   T73]      netlink_rcv_skb+0x130/0x360
[ 2602.609318][   T73]      netlink_unicast+0x449/0x710
[ 2602.609318][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2602.609318][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2602.609318][   T73]      ___sys_sendmsg+0xee/0x170
[ 2602.609318][   T73]      __sys_sendmsg+0xcd/0x170
[ 2602.609318][   T73]      do_syscall_64+0xc6/0x1e0
[ 2602.609318][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2602.609318][   T73] 
[ 2602.611393][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2602.611393][   T73]      dst_init+0x84/0x4a0
[ 2602.611393][   T73]      dst_alloc+0x97/0x150
[ 2602.611393][   T73]      ip6_dst_alloc+0x23/0x90
[ 2602.611393][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2602.611393][   T73]      ip6_pol_route+0x56f/0x840
[ 2602.611393][   T73]      fib6_rule_lookup+0x456/0x630
[ 2602.611393][   T73]      ip6_route_input+0x59c/0xa50
[ 2602.611393][   T73]      ipv6_rcv+0x397/0x810
[ 2602.611393][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2602.611393][   T73]      process_backlog+0x101/0x620
[ 2602.611393][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2602.611393][   T73]      net_rx_action+0x495/0xbe0
[ 2602.611393][   T73]      __do_softirq+0x1b5/0x7f6
[ 2602.611393][   T73] 
[ 2602.613209][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2602.613209][   T73]      netdev_get_by_index+0x5e/0x80
[ 2602.613209][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2602.613209][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2602.613209][   T73]      ip6_route_add+0x1c/0x140
[ 2602.613209][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2602.613209][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2602.613209][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2602.613209][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2602.613209][   T73]      netlink_rcv_skb+0x130/0x360
[ 2602.613209][   T73]      netlink_unicast+0x449/0x710
[ 2602.613209][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2602.613209][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2602.613209][   T73]      ___sys_sendmsg+0xee/0x170
[ 2602.613209][   T73]      __sys_sendmsg+0xcd/0x170
[ 2602.613209][   T73]      do_syscall_64+0xc6/0x1e0
[ 2602.613209][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2602.613209][   T73] 
[ 2602.615460][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2602.615460][   T73]      netdev_get_by_index+0x5e/0x80
[ 2602.615460][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2602.615460][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2602.615460][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2602.615460][   T73]      ipv6_add_addr+0x411/0x2000
[ 2602.615460][   T73]      inet6_addr_add+0x30e/0xa40
[ 2602.615460][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2602.615460][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2602.615460][   T73]      netlink_rcv_skb+0x130/0x360
[ 2602.615460][   T73]      netlink_unicast+0x449/0x710
[ 2602.615460][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2602.615460][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2602.615460][   T73]      ___sys_sendmsg+0xee/0x170
[ 2602.615460][   T73]      __sys_sendmsg+0xcd/0x170
[ 2602.615460][   T73]      do_syscall_64+0xc6/0x1e0
[ 2602.615460][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2602.615460][   T73] 
[ 2602.617753][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2602.617753][   T73]      netdev_get_by_index+0x5e/0x80
[ 2602.617753][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2602.617753][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2602.617753][   T73]      ip6_route_add+0x1c/0x140
[ 2602.617753][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2602.617753][   T73]      addrconf_add_dev+0xe2/0x170
[ 2602.617753][   T73]      inet6_addr_add+0x12f/0xa40
[ 2602.617753][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2602.617753][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2602.617753][   T73]      netlink_rcv_skb+0x130/0x360
[ 2602.617753][   T73]      netlink_unicast+0x449/0x710
[ 2602.617753][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2602.617753][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2602.617753][   T73]      ___sys_sendmsg+0xee/0x170
[ 2602.617753][   T73]      __sys_sendmsg+0xcd/0x170
[ 2602.617753][   T73]      do_syscall_64+0xc6/0x1e0
[ 2602.617753][   T73] 
[ 2602.619901][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2602.619901][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2602.619901][   T73]      ipv6_find_idev+0x102/0x170
[ 2602.619901][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2602.619901][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2602.619901][   T73]      netlink_rcv_skb+0x130/0x360
[ 2602.619901][   T73]      netlink_unicast+0x449/0x710
[ 2602.619901][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2602.619901][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2602.619901][   T73]      ___sys_sendmsg+0xee/0x170
[ 2602.619901][   T73]      __sys_sendmsg+0xcd/0x170
[ 2602.619901][   T73]      do_syscall_64+0xc6/0x1e0
[ 2602.619901][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2602.619901][   T73] 
[ 2602.621552][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2602.621552][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2602.621552][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2602.621552][   T73]      ipv6_find_idev+0x102/0x170
[ 2602.621552][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2602.621552][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2602.621552][   T73]      netlink_rcv_skb+0x130/0x360
[ 2602.621552][   T73]      netlink_unicast+0x449/0x710
[ 2602.621552][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2602.621552][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2602.621552][   T73]      ___sys_sendmsg+0xee/0x170
[ 2602.621552][   T73]      __sys_sendmsg+0xcd/0x170
[ 2602.621552][   T73]      do_syscall_64+0xc6/0x1e0
[ 2602.621552][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2602.621552][   T73] 
[ 2602.623900][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2602.624181][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2602.624181][   T73]      netdev_get_by_index+0x5e/0x80
[ 2602.624181][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2602.624181][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2602.624181][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2602.624181][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2602.624181][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2602.624181][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2602.624181][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2602.624181][   T73]      addrconf_dad_begin+0x310/0x670
[ 2602.624181][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2602.624181][   T73]      process_one_work+0x84d/0x18a0
[ 2602.624181][   T73]      worker_thread+0x587/0xd30
[ 2602.624181][   T73]      kthread+0x28a/0x350
[ 2602.624181][   T73]      ret_from_fork+0x31/0x70
[ 2602.624181][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2602.624181][   T73] 
[ 2602.626196][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2602.626196][   T73]      netdev_get_by_index+0x5e/0x80
[ 2602.626196][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2602.626196][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2602.626196][   T73]      ip6_route_add+0x1c/0x140
[ 2602.626196][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2602.626196][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2602.626196][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2602.626196][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2602.626196][   T73]      netlink_rcv_skb+0x130/0x360
[ 2602.626196][   T73]      netlink_unicast+0x449/0x710
[ 2602.626196][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2602.626196][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2602.626196][   T73]      ___sys_sendmsg+0xee/0x170
[ 2602.626196][   T73]      __sys_sendmsg+0xcd/0x170
[ 2602.626196][   T73]      do_syscall_64+0xc6/0x1e0
[ 2602.626196][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2602.626196][   T73] 
[ 2602.628258][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2602.628258][   T73]      netdev_get_by_index+0x5e/0x80
[ 2602.628258][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2602.628258][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2602.628258][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2602.628258][   T73]      ipv6_add_addr+0x411/0x2000
[ 2602.628258][   T73]      inet6_addr_add+0x30e/0xa40
[ 2602.628258][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2602.628258][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2602.628258][   T73]      netlink_rcv_skb+0x130/0x360
[ 2602.628258][   T73]      netlink_unicast+0x449/0x710
[ 2602.628258][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2602.628258][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2602.628258][   T73]      ___sys_sendmsg+0xee/0x170
[ 2602.628258][   T73]      __sys_sendmsg+0xcd/0x170
[ 2602.628258][   T73]      do_syscall_64+0xc6/0x1e0
[ 2602.628258][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2602.628258][   T73] 
[ 2602.630524][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2602.630524][   T73]      netdev_get_by_index+0x5e/0x80
[ 2602.630524][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2602.630524][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2602.630524][   T73]      ip6_route_add+0x1c/0x140
[ 2602.630524][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2602.630524][   T73]      addrconf_add_dev+0xe2/0x170
[ 2602.630524][   T73]      inet6_addr_add+0x12f/0xa40
[ 2602.630524][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2602.630524][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2602.630524][   T73]      netlink_rcv_skb+0x130/0x360
[ 2602.630524][   T73]      netlink_unicast+0x449/0x710
[ 2602.630524][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2602.630524][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2602.630524][   T73]      ___sys_sendmsg+0xee/0x170
[ 2602.630524][   T73]      __sys_sendmsg+0xcd/0x170
[ 2602.630524][   T73]      do_syscall_64+0xc6/0x1e0
[ 2602.630524][   T73] 
[ 2602.632745][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2602.632745][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2602.632745][   T73]      ipv6_find_idev+0x102/0x170
[ 2602.632745][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2602.632745][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2602.632745][   T73]      netlink_rcv_skb+0x130/0x360
[ 2602.632745][   T73]      netlink_unicast+0x449/0x710
[ 2602.632745][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2602.632745][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2602.632745][   T73]      ___sys_sendmsg+0xee/0x170
[ 2602.632745][   T73]      __sys_sendmsg+0xcd/0x170
[ 2602.632745][   T73]      do_syscall_64+0xc6/0x1e0
[ 2602.632745][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2602.632745][   T73] 
[ 2602.634483][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2602.634483][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2602.634483][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2602.634483][   T73]      ipv6_find_idev+0x102/0x170
[ 2602.634483][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2602.634483][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2602.634483][   T73]      netlink_rcv_skb+0x130/0x360
[ 2602.634483][   T73]      netlink_unicast+0x449/0x710
[ 2602.634483][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2602.634483][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2602.634483][   T73]      ___sys_sendmsg+0xee/0x170
[ 2602.634483][   T73]      __sys_sendmsg+0xcd/0x170
[ 2602.634483][   T73]      do_syscall_64+0xc6/0x1e0
[ 2602.634483][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2602.634483][   T73] 
[ 2612.871790][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2612.872209][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2612.872209][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2612.872209][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2612.872209][   T73]      fib6_nh_init+0xa22/0x1580
[ 2612.872209][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2612.872209][   T73]      ip6_route_add+0x1c/0x140
[ 2612.872209][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2612.872209][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2612.872209][   T73]      netlink_rcv_skb+0x130/0x360
[ 2612.872209][   T73]      netlink_unicast+0x449/0x710
[ 2612.872209][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2612.872209][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2612.872209][   T73]      ___sys_sendmsg+0xee/0x170
[ 2612.872209][   T73]      __sys_sendmsg+0xcd/0x170
[ 2612.872209][   T73]      do_syscall_64+0xc6/0x1e0
[ 2612.872209][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2612.872209][   T73] 
[ 2612.874139][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2612.874139][   T73]      dst_init+0x84/0x4a0
[ 2612.874139][   T73]      dst_alloc+0x97/0x150
[ 2612.874139][   T73]      ip6_dst_alloc+0x23/0x90
[ 2612.874139][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2612.874139][   T73]      ip6_pol_route+0x56f/0x840
[ 2612.874139][   T73]      fib6_rule_lookup+0x456/0x630
[ 2612.874139][   T73]      ip6_route_input+0x59c/0xa50
[ 2612.874139][   T73]      ipv6_rcv+0x397/0x810
[ 2612.874139][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2612.874139][   T73]      process_backlog+0x101/0x620
[ 2612.874139][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2612.874139][   T73]      net_rx_action+0x495/0xbe0
[ 2612.874139][   T73]      __do_softirq+0x1b5/0x7f6
[ 2612.874139][   T73] 
[ 2612.875809][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2612.875809][   T73]      netdev_get_by_index+0x5e/0x80
[ 2612.875809][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2612.875809][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2612.875809][   T73]      ip6_route_add+0x1c/0x140
[ 2612.875809][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2612.875809][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2612.875809][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2612.875809][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2612.875809][   T73]      netlink_rcv_skb+0x130/0x360
[ 2612.875809][   T73]      netlink_unicast+0x449/0x710
[ 2612.875809][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2612.875809][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2612.875809][   T73]      ___sys_sendmsg+0xee/0x170
[ 2612.875809][   T73]      __sys_sendmsg+0xcd/0x170
[ 2612.875809][   T73]      do_syscall_64+0xc6/0x1e0
[ 2612.875809][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2612.875809][   T73] 
[ 2612.877807][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2612.877807][   T73]      netdev_get_by_index+0x5e/0x80
[ 2612.877807][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2612.877807][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2612.877807][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2612.877807][   T73]      ipv6_add_addr+0x411/0x2000
[ 2612.877807][   T73]      inet6_addr_add+0x30e/0xa40
[ 2612.877807][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2612.877807][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2612.877807][   T73]      netlink_rcv_skb+0x130/0x360
[ 2612.877807][   T73]      netlink_unicast+0x449/0x710
[ 2612.877807][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2612.877807][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2612.877807][   T73]      ___sys_sendmsg+0xee/0x170
[ 2612.877807][   T73]      __sys_sendmsg+0xcd/0x170
[ 2612.877807][   T73]      do_syscall_64+0xc6/0x1e0
[ 2612.877807][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2612.877807][   T73] 
[ 2612.879817][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2612.879817][   T73]      netdev_get_by_index+0x5e/0x80
[ 2612.879817][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2612.879817][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2612.879817][   T73]      ip6_route_add+0x1c/0x140
[ 2612.879817][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2612.879817][   T73]      addrconf_add_dev+0xe2/0x170
[ 2612.879817][   T73]      inet6_addr_add+0x12f/0xa40
[ 2612.879817][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2612.879817][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2612.879817][   T73]      netlink_rcv_skb+0x130/0x360
[ 2612.879817][   T73]      netlink_unicast+0x449/0x710
[ 2612.879817][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2612.879817][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2612.879817][   T73]      ___sys_sendmsg+0xee/0x170
[ 2612.879817][   T73]      __sys_sendmsg+0xcd/0x170
[ 2612.879817][   T73]      do_syscall_64+0xc6/0x1e0
[ 2612.879817][   T73] 
[ 2612.881787][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2612.881787][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2612.881787][   T73]      ipv6_find_idev+0x102/0x170
[ 2612.881787][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2612.881787][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2612.881787][   T73]      netlink_rcv_skb+0x130/0x360
[ 2612.881787][   T73]      netlink_unicast+0x449/0x710
[ 2612.881787][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2612.881787][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2612.881787][   T73]      ___sys_sendmsg+0xee/0x170
[ 2612.881787][   T73]      __sys_sendmsg+0xcd/0x170
[ 2612.881787][   T73]      do_syscall_64+0xc6/0x1e0
[ 2612.881787][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2612.881787][   T73] 
[ 2612.883362][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2612.883362][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2612.883362][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2612.883362][   T73]      ipv6_find_idev+0x102/0x170
[ 2612.883362][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2612.883362][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2612.883362][   T73]      netlink_rcv_skb+0x130/0x360
[ 2612.883362][   T73]      netlink_unicast+0x449/0x710
[ 2612.883362][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2612.883362][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2612.883362][   T73]      ___sys_sendmsg+0xee/0x170
[ 2612.883362][   T73]      __sys_sendmsg+0xcd/0x170
[ 2612.883362][   T73]      do_syscall_64+0xc6/0x1e0
[ 2612.883362][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2612.883362][   T73] 
[ 2612.885065][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2612.885353][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2612.885353][   T73]      netdev_get_by_index+0x5e/0x80
[ 2612.885353][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2612.885353][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2612.885353][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2612.885353][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2612.885353][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2612.885353][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2612.885353][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2612.885353][   T73]      addrconf_dad_begin+0x310/0x670
[ 2612.885353][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2612.885353][   T73]      process_one_work+0x84d/0x18a0
[ 2612.885353][   T73]      worker_thread+0x587/0xd30
[ 2612.885353][   T73]      kthread+0x28a/0x350
[ 2612.885353][   T73]      ret_from_fork+0x31/0x70
[ 2612.885353][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2612.885353][   T73] 
[ 2612.887290][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2612.887290][   T73]      netdev_get_by_index+0x5e/0x80
[ 2612.887290][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2612.887290][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2612.887290][   T73]      ip6_route_add+0x1c/0x140
[ 2612.887290][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2612.887290][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2612.887290][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2612.887290][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2612.887290][   T73]      netlink_rcv_skb+0x130/0x360
[ 2612.887290][   T73]      netlink_unicast+0x449/0x710
[ 2612.887290][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2612.887290][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2612.887290][   T73]      ___sys_sendmsg+0xee/0x170
[ 2612.887290][   T73]      __sys_sendmsg+0xcd/0x170
[ 2612.887290][   T73]      do_syscall_64+0xc6/0x1e0
[ 2612.887290][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2612.887290][   T73] 
[ 2612.889379][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2612.889379][   T73]      netdev_get_by_index+0x5e/0x80
[ 2612.889379][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2612.889379][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2612.889379][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2612.889379][   T73]      ipv6_add_addr+0x411/0x2000
[ 2612.889379][   T73]      inet6_addr_add+0x30e/0xa40
[ 2612.889379][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2612.889379][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2612.889379][   T73]      netlink_rcv_skb+0x130/0x360
[ 2612.889379][   T73]      netlink_unicast+0x449/0x710
[ 2612.889379][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2612.889379][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2612.889379][   T73]      ___sys_sendmsg+0xee/0x170
[ 2612.889379][   T73]      __sys_sendmsg+0xcd/0x170
[ 2612.889379][   T73]      do_syscall_64+0xc6/0x1e0
[ 2612.889379][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2612.889379][   T73] 
[ 2612.891405][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2612.891405][   T73]      netdev_get_by_index+0x5e/0x80
[ 2612.891405][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2612.891405][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2612.891405][   T73]      ip6_route_add+0x1c/0x140
[ 2612.891405][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2612.891405][   T73]      addrconf_add_dev+0xe2/0x170
[ 2612.891405][   T73]      inet6_addr_add+0x12f/0xa40
[ 2612.891405][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2612.891405][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2612.891405][   T73]      netlink_rcv_skb+0x130/0x360
[ 2612.891405][   T73]      netlink_unicast+0x449/0x710
[ 2612.891405][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2612.891405][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2612.891405][   T73]      ___sys_sendmsg+0xee/0x170
[ 2612.891405][   T73]      __sys_sendmsg+0xcd/0x170
[ 2612.891405][   T73]      do_syscall_64+0xc6/0x1e0
[ 2612.891405][   T73] 
[ 2612.893387][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2612.893387][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2612.893387][   T73]      ipv6_find_idev+0x102/0x170
[ 2612.893387][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2612.893387][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2612.893387][   T73]      netlink_rcv_skb+0x130/0x360
[ 2612.893387][   T73]      netlink_unicast+0x449/0x710
[ 2612.893387][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2612.893387][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2612.893387][   T73]      ___sys_sendmsg+0xee/0x170
[ 2612.893387][   T73]      __sys_sendmsg+0xcd/0x170
[ 2612.893387][   T73]      do_syscall_64+0xc6/0x1e0
[ 2612.893387][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2612.893387][   T73] 
[ 2612.894948][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2612.894948][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2612.894948][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2612.894948][   T73]      ipv6_find_idev+0x102/0x170
[ 2612.894948][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2612.894948][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2612.894948][   T73]      netlink_rcv_skb+0x130/0x360
[ 2612.894948][   T73]      netlink_unicast+0x449/0x710
[ 2612.894948][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2612.894948][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2612.894948][   T73]      ___sys_sendmsg+0xee/0x170
[ 2612.894948][   T73]      __sys_sendmsg+0xcd/0x170
[ 2612.894948][   T73]      do_syscall_64+0xc6/0x1e0
[ 2612.894948][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2612.894948][   T73] 
[ 2612.896620][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2612.896899][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2612.896899][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2612.896899][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2612.896899][   T73]      fib6_nh_init+0xa22/0x1580
[ 2612.896899][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2612.896899][   T73]      ip6_route_add+0x1c/0x140
[ 2612.896899][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2612.896899][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2612.896899][   T73]      netlink_rcv_skb+0x130/0x360
[ 2612.896899][   T73]      netlink_unicast+0x449/0x710
[ 2612.896899][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2612.896899][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2612.896899][   T73]      ___sys_sendmsg+0xee/0x170
[ 2612.896899][   T73]      __sys_sendmsg+0xcd/0x170
[ 2612.896899][   T73]      do_syscall_64+0xc6/0x1e0
[ 2612.896899][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2612.896899][   T73] 
[ 2612.898978][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2612.898978][   T73]      dst_init+0x84/0x4a0
[ 2612.898978][   T73]      dst_alloc+0x97/0x150
[ 2612.898978][   T73]      ip6_dst_alloc+0x23/0x90
[ 2612.898978][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2612.898978][   T73]      ip6_pol_route+0x56f/0x840
[ 2612.898978][   T73]      fib6_rule_lookup+0x456/0x630
[ 2612.898978][   T73]      ip6_route_input+0x59c/0xa50
[ 2612.898978][   T73]      ipv6_rcv+0x397/0x810
[ 2612.898978][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2612.898978][   T73]      process_backlog+0x101/0x620
[ 2612.898978][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2612.898978][   T73]      net_rx_action+0x495/0xbe0
[ 2612.898978][   T73]      __do_softirq+0x1b5/0x7f6
[ 2612.898978][   T73] 
[ 2612.900789][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2612.900789][   T73]      netdev_get_by_index+0x5e/0x80
[ 2612.900789][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2612.900789][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2612.900789][   T73]      ip6_route_add+0x1c/0x140
[ 2612.900789][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2612.900789][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2612.900789][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2612.900789][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2612.900789][   T73]      netlink_rcv_skb+0x130/0x360
[ 2612.900789][   T73]      netlink_unicast+0x449/0x710
[ 2612.900789][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2612.900789][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2612.900789][   T73]      ___sys_sendmsg+0xee/0x170
[ 2612.900789][   T73]      __sys_sendmsg+0xcd/0x170
[ 2612.900789][   T73]      do_syscall_64+0xc6/0x1e0
[ 2612.900789][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2612.900789][   T73] 
[ 2612.903116][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2612.903116][   T73]      netdev_get_by_index+0x5e/0x80
[ 2612.903116][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2612.903116][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2612.903116][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2612.903116][   T73]      ipv6_add_addr+0x411/0x2000
[ 2612.903116][   T73]      inet6_addr_add+0x30e/0xa40
[ 2612.903116][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2612.903116][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2612.903116][   T73]      netlink_rcv_skb+0x130/0x360
[ 2612.903116][   T73]      netlink_unicast+0x449/0x710
[ 2612.903116][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2612.903116][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2612.903116][   T73]      ___sys_sendmsg+0xee/0x170
[ 2612.903116][   T73]      __sys_sendmsg+0xcd/0x170
[ 2612.903116][   T73]      do_syscall_64+0xc6/0x1e0
[ 2612.903116][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2612.903116][   T73] 
[ 2612.905292][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2612.905292][   T73]      netdev_get_by_index+0x5e/0x80
[ 2612.905292][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2612.905292][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2612.905292][   T73]      ip6_route_add+0x1c/0x140
[ 2612.905292][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2612.905292][   T73]      addrconf_add_dev+0xe2/0x170
[ 2612.905292][   T73]      inet6_addr_add+0x12f/0xa40
[ 2612.905292][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2612.905292][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2612.905292][   T73]      netlink_rcv_skb+0x130/0x360
[ 2612.905292][   T73]      netlink_unicast+0x449/0x710
[ 2612.905292][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2612.905292][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2612.905292][   T73]      ___sys_sendmsg+0xee/0x170
[ 2612.905292][   T73]      __sys_sendmsg+0xcd/0x170
[ 2612.905292][   T73]      do_syscall_64+0xc6/0x1e0
[ 2612.905292][   T73] 
[ 2612.907579][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2612.907579][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2612.907579][   T73]      ipv6_find_idev+0x102/0x170
[ 2612.907579][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2612.907579][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2612.907579][   T73]      netlink_rcv_skb+0x130/0x360
[ 2612.907579][   T73]      netlink_unicast+0x449/0x710
[ 2612.907579][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2612.907579][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2612.907579][   T73]      ___sys_sendmsg+0xee/0x170
[ 2612.907579][   T73]      __sys_sendmsg+0xcd/0x170
[ 2612.907579][   T73]      do_syscall_64+0xc6/0x1e0
[ 2612.907579][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2612.907579][   T73] 
[ 2612.909309][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2612.909309][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2612.909309][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2612.909309][   T73]      ipv6_find_idev+0x102/0x170
[ 2612.909309][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2612.909309][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2612.909309][   T73]      netlink_rcv_skb+0x130/0x360
[ 2612.909309][   T73]      netlink_unicast+0x449/0x710
[ 2612.909309][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2612.909309][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2612.909309][   T73]      ___sys_sendmsg+0xee/0x170
[ 2612.909309][   T73]      __sys_sendmsg+0xcd/0x170
[ 2612.909309][   T73]      do_syscall_64+0xc6/0x1e0
[ 2612.909309][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2612.909309][   T73] 
[ 2612.911290][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2612.911566][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2612.911566][   T73]      netdev_get_by_index+0x5e/0x80
[ 2612.911566][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2612.911566][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2612.911566][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2612.911566][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2612.911566][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2612.911566][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2612.911566][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2612.911566][   T73]      addrconf_dad_begin+0x310/0x670
[ 2612.911566][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2612.911566][   T73]      process_one_work+0x84d/0x18a0
[ 2612.911566][   T73]      worker_thread+0x587/0xd30
[ 2612.911566][   T73]      kthread+0x28a/0x350
[ 2612.911566][   T73]      ret_from_fork+0x31/0x70
[ 2612.911566][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2612.911566][   T73] 
[ 2612.913749][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2612.913749][   T73]      netdev_get_by_index+0x5e/0x80
[ 2612.913749][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2612.913749][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2612.913749][   T73]      ip6_route_add+0x1c/0x140
[ 2612.913749][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2612.913749][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2612.913749][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2612.913749][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2612.913749][   T73]      netlink_rcv_skb+0x130/0x360
[ 2612.913749][   T73]      netlink_unicast+0x449/0x710
[ 2612.913749][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2612.913749][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2612.913749][   T73]      ___sys_sendmsg+0xee/0x170
[ 2612.913749][   T73]      __sys_sendmsg+0xcd/0x170
[ 2612.913749][   T73]      do_syscall_64+0xc6/0x1e0
[ 2612.913749][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2612.913749][   T73] 
[ 2612.915958][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2612.915958][   T73]      netdev_get_by_index+0x5e/0x80
[ 2612.915958][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2612.915958][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2612.915958][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2612.915958][   T73]      ipv6_add_addr+0x411/0x2000
[ 2612.915958][   T73]      inet6_addr_add+0x30e/0xa40
[ 2612.915958][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2612.915958][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2612.915958][   T73]      netlink_rcv_skb+0x130/0x360
[ 2612.915958][   T73]      netlink_unicast+0x449/0x710
[ 2612.915958][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2612.915958][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2612.915958][   T73]      ___sys_sendmsg+0xee/0x170
[ 2612.915958][   T73]      __sys_sendmsg+0xcd/0x170
[ 2612.915958][   T73]      do_syscall_64+0xc6/0x1e0
[ 2612.915958][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2612.915958][   T73] 
[ 2612.918212][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2612.918212][   T73]      netdev_get_by_index+0x5e/0x80
[ 2612.918212][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2612.918212][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2612.918212][   T73]      ip6_route_add+0x1c/0x140
[ 2612.918212][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2612.918212][   T73]      addrconf_add_dev+0xe2/0x170
[ 2612.918212][   T73]      inet6_addr_add+0x12f/0xa40
[ 2612.918212][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2612.918212][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2612.918212][   T73]      netlink_rcv_skb+0x130/0x360
[ 2612.918212][   T73]      netlink_unicast+0x449/0x710
[ 2612.918212][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2612.918212][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2612.918212][   T73]      ___sys_sendmsg+0xee/0x170
[ 2612.918212][   T73]      __sys_sendmsg+0xcd/0x170
[ 2612.918212][   T73]      do_syscall_64+0xc6/0x1e0
[ 2612.918212][   T73] 
[ 2612.920479][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2612.920479][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2612.920479][   T73]      ipv6_find_idev+0x102/0x170
[ 2612.920479][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2612.920479][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2612.920479][   T73]      netlink_rcv_skb+0x130/0x360
[ 2612.920479][   T73]      netlink_unicast+0x449/0x710
[ 2612.920479][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2612.920479][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2612.920479][   T73]      ___sys_sendmsg+0xee/0x170
[ 2612.920479][   T73]      __sys_sendmsg+0xcd/0x170
[ 2612.920479][   T73]      do_syscall_64+0xc6/0x1e0
[ 2612.920479][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2612.920479][   T73] 
[ 2612.922226][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2612.922226][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2612.922226][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2612.922226][   T73]      ipv6_find_idev+0x102/0x170
[ 2612.922226][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2612.922226][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2612.922226][   T73]      netlink_rcv_skb+0x130/0x360
[ 2612.922226][   T73]      netlink_unicast+0x449/0x710
[ 2612.922226][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2612.922226][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2612.922226][   T73]      ___sys_sendmsg+0xee/0x170
[ 2612.922226][   T73]      __sys_sendmsg+0xcd/0x170
[ 2612.922226][   T73]      do_syscall_64+0xc6/0x1e0
[ 2612.922226][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2612.922226][   T73] 
[ 2623.159843][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2623.160332][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2623.160332][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2623.160332][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2623.160332][   T73]      fib6_nh_init+0xa22/0x1580
[ 2623.160332][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2623.160332][   T73]      ip6_route_add+0x1c/0x140
[ 2623.160332][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2623.160332][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2623.160332][   T73]      netlink_rcv_skb+0x130/0x360
[ 2623.160332][   T73]      netlink_unicast+0x449/0x710
[ 2623.160332][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2623.160332][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2623.160332][   T73]      ___sys_sendmsg+0xee/0x170
[ 2623.160332][   T73]      __sys_sendmsg+0xcd/0x170
[ 2623.160332][   T73]      do_syscall_64+0xc6/0x1e0
[ 2623.160332][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2623.160332][   T73] 
[ 2623.162229][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2623.162229][   T73]      dst_init+0x84/0x4a0
[ 2623.162229][   T73]      dst_alloc+0x97/0x150
[ 2623.162229][   T73]      ip6_dst_alloc+0x23/0x90
[ 2623.162229][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2623.162229][   T73]      ip6_pol_route+0x56f/0x840
[ 2623.162229][   T73]      fib6_rule_lookup+0x456/0x630
[ 2623.162229][   T73]      ip6_route_input+0x59c/0xa50
[ 2623.162229][   T73]      ipv6_rcv+0x397/0x810
[ 2623.162229][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2623.162229][   T73]      process_backlog+0x101/0x620
[ 2623.162229][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2623.162229][   T73]      net_rx_action+0x495/0xbe0
[ 2623.162229][   T73]      __do_softirq+0x1b5/0x7f6
[ 2623.162229][   T73] 
[ 2623.163880][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2623.163880][   T73]      netdev_get_by_index+0x5e/0x80
[ 2623.163880][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2623.163880][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2623.163880][   T73]      ip6_route_add+0x1c/0x140
[ 2623.163880][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2623.163880][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2623.163880][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2623.163880][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2623.163880][   T73]      netlink_rcv_skb+0x130/0x360
[ 2623.163880][   T73]      netlink_unicast+0x449/0x710
[ 2623.163880][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2623.163880][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2623.163880][   T73]      ___sys_sendmsg+0xee/0x170
[ 2623.163880][   T73]      __sys_sendmsg+0xcd/0x170
[ 2623.163880][   T73]      do_syscall_64+0xc6/0x1e0
[ 2623.163880][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2623.163880][   T73] 
[ 2623.165875][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2623.165875][   T73]      netdev_get_by_index+0x5e/0x80
[ 2623.165875][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2623.165875][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2623.165875][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2623.165875][   T73]      ipv6_add_addr+0x411/0x2000
[ 2623.165875][   T73]      inet6_addr_add+0x30e/0xa40
[ 2623.165875][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2623.165875][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2623.165875][   T73]      netlink_rcv_skb+0x130/0x360
[ 2623.165875][   T73]      netlink_unicast+0x449/0x710
[ 2623.165875][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2623.165875][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2623.165875][   T73]      ___sys_sendmsg+0xee/0x170
[ 2623.165875][   T73]      __sys_sendmsg+0xcd/0x170
[ 2623.165875][   T73]      do_syscall_64+0xc6/0x1e0
[ 2623.165875][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2623.165875][   T73] 
[ 2623.167868][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2623.167868][   T73]      netdev_get_by_index+0x5e/0x80
[ 2623.167868][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2623.167868][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2623.167868][   T73]      ip6_route_add+0x1c/0x140
[ 2623.167868][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2623.167868][   T73]      addrconf_add_dev+0xe2/0x170
[ 2623.167868][   T73]      inet6_addr_add+0x12f/0xa40
[ 2623.167868][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2623.167868][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2623.167868][   T73]      netlink_rcv_skb+0x130/0x360
[ 2623.167868][   T73]      netlink_unicast+0x449/0x710
[ 2623.167868][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2623.167868][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2623.167868][   T73]      ___sys_sendmsg+0xee/0x170
[ 2623.167868][   T73]      __sys_sendmsg+0xcd/0x170
[ 2623.167868][   T73]      do_syscall_64+0xc6/0x1e0
[ 2623.167868][   T73] 
[ 2623.169825][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2623.169825][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2623.169825][   T73]      ipv6_find_idev+0x102/0x170
[ 2623.169825][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2623.169825][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2623.169825][   T73]      netlink_rcv_skb+0x130/0x360
[ 2623.169825][   T73]      netlink_unicast+0x449/0x710
[ 2623.169825][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2623.169825][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2623.169825][   T73]      ___sys_sendmsg+0xee/0x170
[ 2623.169825][   T73]      __sys_sendmsg+0xcd/0x170
[ 2623.169825][   T73]      do_syscall_64+0xc6/0x1e0
[ 2623.169825][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2623.169825][   T73] 
[ 2623.171362][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2623.171362][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2623.171362][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2623.171362][   T73]      ipv6_find_idev+0x102/0x170
[ 2623.171362][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2623.171362][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2623.171362][   T73]      netlink_rcv_skb+0x130/0x360
[ 2623.171362][   T73]      netlink_unicast+0x449/0x710
[ 2623.171362][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2623.171362][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2623.171362][   T73]      ___sys_sendmsg+0xee/0x170
[ 2623.171362][   T73]      __sys_sendmsg+0xcd/0x170
[ 2623.171362][   T73]      do_syscall_64+0xc6/0x1e0
[ 2623.171362][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2623.171362][   T73] 
[ 2623.173065][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2623.173343][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2623.173343][   T73]      netdev_get_by_index+0x5e/0x80
[ 2623.173343][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2623.173343][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2623.173343][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2623.173343][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2623.173343][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2623.173343][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2623.173343][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2623.173343][   T73]      addrconf_dad_begin+0x310/0x670
[ 2623.173343][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2623.173343][   T73]      process_one_work+0x84d/0x18a0
[ 2623.173343][   T73]      worker_thread+0x587/0xd30
[ 2623.173343][   T73]      kthread+0x28a/0x350
[ 2623.173343][   T73]      ret_from_fork+0x31/0x70
[ 2623.173343][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2623.173343][   T73] 
[ 2623.175245][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2623.175245][   T73]      netdev_get_by_index+0x5e/0x80
[ 2623.175245][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2623.175245][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2623.175245][   T73]      ip6_route_add+0x1c/0x140
[ 2623.175245][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2623.175245][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2623.175245][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2623.175245][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2623.175245][   T73]      netlink_rcv_skb+0x130/0x360
[ 2623.175245][   T73]      netlink_unicast+0x449/0x710
[ 2623.175245][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2623.175245][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2623.175245][   T73]      ___sys_sendmsg+0xee/0x170
[ 2623.175245][   T73]      __sys_sendmsg+0xcd/0x170
[ 2623.175245][   T73]      do_syscall_64+0xc6/0x1e0
[ 2623.175245][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2623.175245][   T73] 
[ 2623.177254][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2623.177254][   T73]      netdev_get_by_index+0x5e/0x80
[ 2623.177254][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2623.177254][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2623.177254][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2623.177254][   T73]      ipv6_add_addr+0x411/0x2000
[ 2623.177254][   T73]      inet6_addr_add+0x30e/0xa40
[ 2623.177254][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2623.177254][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2623.177254][   T73]      netlink_rcv_skb+0x130/0x360
[ 2623.177254][   T73]      netlink_unicast+0x449/0x710
[ 2623.177254][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2623.177254][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2623.177254][   T73]      ___sys_sendmsg+0xee/0x170
[ 2623.177254][   T73]      __sys_sendmsg+0xcd/0x170
[ 2623.177254][   T73]      do_syscall_64+0xc6/0x1e0
[ 2623.177254][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2623.177254][   T73] 
[ 2623.179255][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2623.179255][   T73]      netdev_get_by_index+0x5e/0x80
[ 2623.179255][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2623.179255][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2623.179255][   T73]      ip6_route_add+0x1c/0x140
[ 2623.179255][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2623.179255][   T73]      addrconf_add_dev+0xe2/0x170
[ 2623.179255][   T73]      inet6_addr_add+0x12f/0xa40
[ 2623.179255][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2623.179255][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2623.179255][   T73]      netlink_rcv_skb+0x130/0x360
[ 2623.179255][   T73]      netlink_unicast+0x449/0x710
[ 2623.179255][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2623.179255][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2623.179255][   T73]      ___sys_sendmsg+0xee/0x170
[ 2623.179255][   T73]      __sys_sendmsg+0xcd/0x170
[ 2623.179255][   T73]      do_syscall_64+0xc6/0x1e0
[ 2623.179255][   T73] 
[ 2623.181212][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2623.181212][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2623.181212][   T73]      ipv6_find_idev+0x102/0x170
[ 2623.181212][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2623.181212][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2623.181212][   T73]      netlink_rcv_skb+0x130/0x360
[ 2623.181212][   T73]      netlink_unicast+0x449/0x710
[ 2623.181212][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2623.181212][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2623.181212][   T73]      ___sys_sendmsg+0xee/0x170
[ 2623.181212][   T73]      __sys_sendmsg+0xcd/0x170
[ 2623.181212][   T73]      do_syscall_64+0xc6/0x1e0
[ 2623.181212][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2623.181212][   T73] 
[ 2623.182751][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2623.182751][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2623.182751][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2623.182751][   T73]      ipv6_find_idev+0x102/0x170
[ 2623.182751][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2623.182751][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2623.182751][   T73]      netlink_rcv_skb+0x130/0x360
[ 2623.182751][   T73]      netlink_unicast+0x449/0x710
[ 2623.182751][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2623.182751][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2623.182751][   T73]      ___sys_sendmsg+0xee/0x170
[ 2623.182751][   T73]      __sys_sendmsg+0xcd/0x170
[ 2623.182751][   T73]      do_syscall_64+0xc6/0x1e0
[ 2623.182751][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2623.182751][   T73] 
[ 2623.184416][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2623.184685][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2623.184685][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2623.184685][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2623.184685][   T73]      fib6_nh_init+0xa22/0x1580
[ 2623.184685][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2623.184685][   T73]      ip6_route_add+0x1c/0x140
[ 2623.184685][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2623.184685][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2623.184685][   T73]      netlink_rcv_skb+0x130/0x360
[ 2623.184685][   T73]      netlink_unicast+0x449/0x710
[ 2623.184685][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2623.184685][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2623.184685][   T73]      ___sys_sendmsg+0xee/0x170
[ 2623.184685][   T73]      __sys_sendmsg+0xcd/0x170
[ 2623.184685][   T73]      do_syscall_64+0xc6/0x1e0
[ 2623.184685][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2623.184685][   T73] 
[ 2623.186749][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2623.186749][   T73]      dst_init+0x84/0x4a0
[ 2623.186749][   T73]      dst_alloc+0x97/0x150
[ 2623.186749][   T73]      ip6_dst_alloc+0x23/0x90
[ 2623.186749][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2623.186749][   T73]      ip6_pol_route+0x56f/0x840
[ 2623.186749][   T73]      fib6_rule_lookup+0x456/0x630
[ 2623.186749][   T73]      ip6_route_input+0x59c/0xa50
[ 2623.186749][   T73]      ipv6_rcv+0x397/0x810
[ 2623.186749][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2623.186749][   T73]      process_backlog+0x101/0x620
[ 2623.186749][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2623.186749][   T73]      net_rx_action+0x495/0xbe0
[ 2623.186749][   T73]      __do_softirq+0x1b5/0x7f6
[ 2623.186749][   T73] 
[ 2623.188570][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2623.188570][   T73]      netdev_get_by_index+0x5e/0x80
[ 2623.188570][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2623.188570][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2623.188570][   T73]      ip6_route_add+0x1c/0x140
[ 2623.188570][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2623.188570][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2623.188570][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2623.188570][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2623.188570][   T73]      netlink_rcv_skb+0x130/0x360
[ 2623.188570][   T73]      netlink_unicast+0x449/0x710
[ 2623.188570][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2623.188570][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2623.188570][   T73]      ___sys_sendmsg+0xee/0x170
[ 2623.188570][   T73]      __sys_sendmsg+0xcd/0x170
[ 2623.188570][   T73]      do_syscall_64+0xc6/0x1e0
[ 2623.188570][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2623.188570][   T73] 
[ 2623.190799][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2623.190799][   T73]      netdev_get_by_index+0x5e/0x80
[ 2623.190799][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2623.190799][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2623.190799][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2623.190799][   T73]      ipv6_add_addr+0x411/0x2000
[ 2623.190799][   T73]      inet6_addr_add+0x30e/0xa40
[ 2623.190799][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2623.190799][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2623.190799][   T73]      netlink_rcv_skb+0x130/0x360
[ 2623.190799][   T73]      netlink_unicast+0x449/0x710
[ 2623.190799][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2623.190799][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2623.190799][   T73]      ___sys_sendmsg+0xee/0x170
[ 2623.190799][   T73]      __sys_sendmsg+0xcd/0x170
[ 2623.190799][   T73]      do_syscall_64+0xc6/0x1e0
[ 2623.190799][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2623.190799][   T73] 
[ 2623.193129][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2623.193129][   T73]      netdev_get_by_index+0x5e/0x80
[ 2623.193129][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2623.193129][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2623.193129][   T73]      ip6_route_add+0x1c/0x140
[ 2623.193129][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2623.193129][   T73]      addrconf_add_dev+0xe2/0x170
[ 2623.193129][   T73]      inet6_addr_add+0x12f/0xa40
[ 2623.193129][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2623.193129][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2623.193129][   T73]      netlink_rcv_skb+0x130/0x360
[ 2623.193129][   T73]      netlink_unicast+0x449/0x710
[ 2623.193129][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2623.193129][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2623.193129][   T73]      ___sys_sendmsg+0xee/0x170
[ 2623.193129][   T73]      __sys_sendmsg+0xcd/0x170
[ 2623.193129][   T73]      do_syscall_64+0xc6/0x1e0
[ 2623.193129][   T73] 
[ 2623.195261][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2623.195261][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2623.195261][   T73]      ipv6_find_idev+0x102/0x170
[ 2623.195261][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2623.195261][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2623.195261][   T73]      netlink_rcv_skb+0x130/0x360
[ 2623.195261][   T73]      netlink_unicast+0x449/0x710
[ 2623.195261][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2623.195261][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2623.195261][   T73]      ___sys_sendmsg+0xee/0x170
[ 2623.195261][   T73]      __sys_sendmsg+0xcd/0x170
[ 2623.195261][   T73]      do_syscall_64+0xc6/0x1e0
[ 2623.195261][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2623.195261][   T73] 
[ 2623.196981][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2623.196981][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2623.196981][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2623.196981][   T73]      ipv6_find_idev+0x102/0x170
[ 2623.196981][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2623.196981][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2623.196981][   T73]      netlink_rcv_skb+0x130/0x360
[ 2623.196981][   T73]      netlink_unicast+0x449/0x710
[ 2623.196981][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2623.196981][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2623.196981][   T73]      ___sys_sendmsg+0xee/0x170
[ 2623.196981][   T73]      __sys_sendmsg+0xcd/0x170
[ 2623.196981][   T73]      do_syscall_64+0xc6/0x1e0
[ 2623.196981][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2623.196981][   T73] 
[ 2623.198888][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2623.199164][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2623.199164][   T73]      netdev_get_by_index+0x5e/0x80
[ 2623.199164][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2623.199164][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2623.199164][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2623.199164][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2623.199164][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2623.199164][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2623.199164][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2623.199164][   T73]      addrconf_dad_begin+0x310/0x670
[ 2623.199164][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2623.199164][   T73]      process_one_work+0x84d/0x18a0
[ 2623.199164][   T73]      worker_thread+0x587/0xd30
[ 2623.199164][   T73]      kthread+0x28a/0x350
[ 2623.199164][   T73]      ret_from_fork+0x31/0x70
[ 2623.199164][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2623.199164][   T73] 
[ 2623.201306][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2623.201306][   T73]      netdev_get_by_index+0x5e/0x80
[ 2623.201306][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2623.201306][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2623.201306][   T73]      ip6_route_add+0x1c/0x140
[ 2623.201306][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2623.201306][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2623.201306][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2623.201306][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2623.201306][   T73]      netlink_rcv_skb+0x130/0x360
[ 2623.201306][   T73]      netlink_unicast+0x449/0x710
[ 2623.201306][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2623.201306][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2623.201306][   T73]      ___sys_sendmsg+0xee/0x170
[ 2623.201306][   T73]      __sys_sendmsg+0xcd/0x170
[ 2623.201306][   T73]      do_syscall_64+0xc6/0x1e0
[ 2623.201306][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2623.201306][   T73] 
[ 2623.203496][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2623.203496][   T73]      netdev_get_by_index+0x5e/0x80
[ 2623.203496][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2623.203496][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2623.203496][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2623.203496][   T73]      ipv6_add_addr+0x411/0x2000
[ 2623.203496][   T73]      inet6_addr_add+0x30e/0xa40
[ 2623.203496][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2623.203496][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2623.203496][   T73]      netlink_rcv_skb+0x130/0x360
[ 2623.203496][   T73]      netlink_unicast+0x449/0x710
[ 2623.203496][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2623.203496][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2623.203496][   T73]      ___sys_sendmsg+0xee/0x170
[ 2623.203496][   T73]      __sys_sendmsg+0xcd/0x170
[ 2623.203496][   T73]      do_syscall_64+0xc6/0x1e0
[ 2623.203496][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2623.203496][   T73] 
[ 2623.205784][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2623.205784][   T73]      netdev_get_by_index+0x5e/0x80
[ 2623.205784][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2623.205784][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2623.205784][   T73]      ip6_route_add+0x1c/0x140
[ 2623.205784][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2623.205784][   T73]      addrconf_add_dev+0xe2/0x170
[ 2623.205784][   T73]      inet6_addr_add+0x12f/0xa40
[ 2623.205784][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2623.205784][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2623.205784][   T73]      netlink_rcv_skb+0x130/0x360
[ 2623.205784][   T73]      netlink_unicast+0x449/0x710
[ 2623.205784][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2623.205784][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2623.205784][   T73]      ___sys_sendmsg+0xee/0x170
[ 2623.205784][   T73]      __sys_sendmsg+0xcd/0x170
[ 2623.205784][   T73]      do_syscall_64+0xc6/0x1e0
[ 2623.205784][   T73] 
[ 2623.207984][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2623.207984][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2623.207984][   T73]      ipv6_find_idev+0x102/0x170
[ 2623.207984][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2623.207984][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2623.207984][   T73]      netlink_rcv_skb+0x130/0x360
[ 2623.207984][   T73]      netlink_unicast+0x449/0x710
[ 2623.207984][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2623.207984][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2623.207984][   T73]      ___sys_sendmsg+0xee/0x170
[ 2623.207984][   T73]      __sys_sendmsg+0xcd/0x170
[ 2623.207984][   T73]      do_syscall_64+0xc6/0x1e0
[ 2623.207984][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2623.207984][   T73] 
[ 2623.209702][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2623.209702][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2623.209702][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2623.209702][   T73]      ipv6_find_idev+0x102/0x170
[ 2623.209702][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2623.209702][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2623.209702][   T73]      netlink_rcv_skb+0x130/0x360
[ 2623.209702][   T73]      netlink_unicast+0x449/0x710
[ 2623.209702][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2623.209702][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2623.209702][   T73]      ___sys_sendmsg+0xee/0x170
[ 2623.209702][   T73]      __sys_sendmsg+0xcd/0x170
[ 2623.209702][   T73]      do_syscall_64+0xc6/0x1e0
[ 2623.209702][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2623.209702][   T73] 
[ 2633.447831][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2633.448425][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2633.448425][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2633.448425][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2633.448425][   T73]      fib6_nh_init+0xa22/0x1580
[ 2633.448425][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2633.448425][   T73]      ip6_route_add+0x1c/0x140
[ 2633.448425][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2633.448425][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2633.448425][   T73]      netlink_rcv_skb+0x130/0x360
[ 2633.448425][   T73]      netlink_unicast+0x449/0x710
[ 2633.448425][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2633.448425][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2633.448425][   T73]      ___sys_sendmsg+0xee/0x170
[ 2633.448425][   T73]      __sys_sendmsg+0xcd/0x170
[ 2633.448425][   T73]      do_syscall_64+0xc6/0x1e0
[ 2633.448425][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2633.448425][   T73] 
[ 2633.450371][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2633.450371][   T73]      dst_init+0x84/0x4a0
[ 2633.450371][   T73]      dst_alloc+0x97/0x150
[ 2633.450371][   T73]      ip6_dst_alloc+0x23/0x90
[ 2633.450371][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2633.450371][   T73]      ip6_pol_route+0x56f/0x840
[ 2633.450371][   T73]      fib6_rule_lookup+0x456/0x630
[ 2633.450371][   T73]      ip6_route_input+0x59c/0xa50
[ 2633.450371][   T73]      ipv6_rcv+0x397/0x810
[ 2633.450371][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2633.450371][   T73]      process_backlog+0x101/0x620
[ 2633.450371][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2633.450371][   T73]      net_rx_action+0x495/0xbe0
[ 2633.450371][   T73]      __do_softirq+0x1b5/0x7f6
[ 2633.450371][   T73] 
[ 2633.452010][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2633.452010][   T73]      netdev_get_by_index+0x5e/0x80
[ 2633.452010][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2633.452010][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2633.452010][   T73]      ip6_route_add+0x1c/0x140
[ 2633.452010][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2633.452010][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2633.452010][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2633.452010][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2633.452010][   T73]      netlink_rcv_skb+0x130/0x360
[ 2633.452010][   T73]      netlink_unicast+0x449/0x710
[ 2633.452010][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2633.452010][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2633.452010][   T73]      ___sys_sendmsg+0xee/0x170
[ 2633.452010][   T73]      __sys_sendmsg+0xcd/0x170
[ 2633.452010][   T73]      do_syscall_64+0xc6/0x1e0
[ 2633.452010][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2633.452010][   T73] 
[ 2633.454032][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2633.454032][   T73]      netdev_get_by_index+0x5e/0x80
[ 2633.454032][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2633.454032][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2633.454032][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2633.454032][   T73]      ipv6_add_addr+0x411/0x2000
[ 2633.454032][   T73]      inet6_addr_add+0x30e/0xa40
[ 2633.454032][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2633.454032][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2633.454032][   T73]      netlink_rcv_skb+0x130/0x360
[ 2633.454032][   T73]      netlink_unicast+0x449/0x710
[ 2633.454032][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2633.454032][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2633.454032][   T73]      ___sys_sendmsg+0xee/0x170
[ 2633.454032][   T73]      __sys_sendmsg+0xcd/0x170
[ 2633.454032][   T73]      do_syscall_64+0xc6/0x1e0
[ 2633.454032][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2633.454032][   T73] 
[ 2633.456030][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2633.456030][   T73]      netdev_get_by_index+0x5e/0x80
[ 2633.456030][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2633.456030][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2633.456030][   T73]      ip6_route_add+0x1c/0x140
[ 2633.456030][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2633.456030][   T73]      addrconf_add_dev+0xe2/0x170
[ 2633.456030][   T73]      inet6_addr_add+0x12f/0xa40
[ 2633.456030][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2633.456030][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2633.456030][   T73]      netlink_rcv_skb+0x130/0x360
[ 2633.456030][   T73]      netlink_unicast+0x449/0x710
[ 2633.456030][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2633.456030][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2633.456030][   T73]      ___sys_sendmsg+0xee/0x170
[ 2633.456030][   T73]      __sys_sendmsg+0xcd/0x170
[ 2633.456030][   T73]      do_syscall_64+0xc6/0x1e0
[ 2633.456030][   T73] 
[ 2633.457996][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2633.457996][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2633.457996][   T73]      ipv6_find_idev+0x102/0x170
[ 2633.457996][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2633.457996][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2633.457996][   T73]      netlink_rcv_skb+0x130/0x360
[ 2633.457996][   T73]      netlink_unicast+0x449/0x710
[ 2633.457996][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2633.457996][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2633.457996][   T73]      ___sys_sendmsg+0xee/0x170
[ 2633.457996][   T73]      __sys_sendmsg+0xcd/0x170
[ 2633.457996][   T73]      do_syscall_64+0xc6/0x1e0
[ 2633.457996][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2633.457996][   T73] 
[ 2633.459533][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2633.459533][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2633.459533][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2633.459533][   T73]      ipv6_find_idev+0x102/0x170
[ 2633.459533][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2633.459533][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2633.459533][   T73]      netlink_rcv_skb+0x130/0x360
[ 2633.459533][   T73]      netlink_unicast+0x449/0x710
[ 2633.459533][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2633.459533][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2633.459533][   T73]      ___sys_sendmsg+0xee/0x170
[ 2633.459533][   T73]      __sys_sendmsg+0xcd/0x170
[ 2633.459533][   T73]      do_syscall_64+0xc6/0x1e0
[ 2633.459533][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2633.459533][   T73] 
[ 2633.461247][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2633.461545][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2633.461545][   T73]      netdev_get_by_index+0x5e/0x80
[ 2633.461545][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2633.461545][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2633.461545][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2633.461545][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2633.461545][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2633.461545][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2633.461545][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2633.461545][   T73]      addrconf_dad_begin+0x310/0x670
[ 2633.461545][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2633.461545][   T73]      process_one_work+0x84d/0x18a0
[ 2633.461545][   T73]      worker_thread+0x587/0xd30
[ 2633.461545][   T73]      kthread+0x28a/0x350
[ 2633.461545][   T73]      ret_from_fork+0x31/0x70
[ 2633.461545][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2633.461545][   T73] 
[ 2633.463468][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2633.463468][   T73]      netdev_get_by_index+0x5e/0x80
[ 2633.463468][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2633.463468][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2633.463468][   T73]      ip6_route_add+0x1c/0x140
[ 2633.463468][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2633.463468][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2633.463468][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2633.463468][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2633.463468][   T73]      netlink_rcv_skb+0x130/0x360
[ 2633.463468][   T73]      netlink_unicast+0x449/0x710
[ 2633.463468][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2633.463468][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2633.463468][   T73]      ___sys_sendmsg+0xee/0x170
[ 2633.463468][   T73]      __sys_sendmsg+0xcd/0x170
[ 2633.463468][   T73]      do_syscall_64+0xc6/0x1e0
[ 2633.463468][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2633.463468][   T73] 
[ 2633.465454][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2633.465454][   T73]      netdev_get_by_index+0x5e/0x80
[ 2633.465454][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2633.465454][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2633.465454][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2633.465454][   T73]      ipv6_add_addr+0x411/0x2000
[ 2633.465454][   T73]      inet6_addr_add+0x30e/0xa40
[ 2633.465454][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2633.465454][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2633.465454][   T73]      netlink_rcv_skb+0x130/0x360
[ 2633.465454][   T73]      netlink_unicast+0x449/0x710
[ 2633.465454][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2633.465454][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2633.465454][   T73]      ___sys_sendmsg+0xee/0x170
[ 2633.465454][   T73]      __sys_sendmsg+0xcd/0x170
[ 2633.465454][   T73]      do_syscall_64+0xc6/0x1e0
[ 2633.465454][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2633.465454][   T73] 
[ 2633.467448][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2633.467448][   T73]      netdev_get_by_index+0x5e/0x80
[ 2633.467448][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2633.467448][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2633.467448][   T73]      ip6_route_add+0x1c/0x140
[ 2633.467448][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2633.467448][   T73]      addrconf_add_dev+0xe2/0x170
[ 2633.467448][   T73]      inet6_addr_add+0x12f/0xa40
[ 2633.467448][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2633.467448][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2633.467448][   T73]      netlink_rcv_skb+0x130/0x360
[ 2633.467448][   T73]      netlink_unicast+0x449/0x710
[ 2633.467448][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2633.467448][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2633.467448][   T73]      ___sys_sendmsg+0xee/0x170
[ 2633.467448][   T73]      __sys_sendmsg+0xcd/0x170
[ 2633.467448][   T73]      do_syscall_64+0xc6/0x1e0
[ 2633.467448][   T73] 
[ 2633.469400][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2633.469400][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2633.469400][   T73]      ipv6_find_idev+0x102/0x170
[ 2633.469400][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2633.469400][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2633.469400][   T73]      netlink_rcv_skb+0x130/0x360
[ 2633.469400][   T73]      netlink_unicast+0x449/0x710
[ 2633.469400][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2633.469400][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2633.469400][   T73]      ___sys_sendmsg+0xee/0x170
[ 2633.469400][   T73]      __sys_sendmsg+0xcd/0x170
[ 2633.469400][   T73]      do_syscall_64+0xc6/0x1e0
[ 2633.469400][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2633.469400][   T73] 
[ 2633.470928][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2633.470928][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2633.470928][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2633.470928][   T73]      ipv6_find_idev+0x102/0x170
[ 2633.470928][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2633.470928][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2633.470928][   T73]      netlink_rcv_skb+0x130/0x360
[ 2633.470928][   T73]      netlink_unicast+0x449/0x710
[ 2633.470928][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2633.470928][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2633.470928][   T73]      ___sys_sendmsg+0xee/0x170
[ 2633.470928][   T73]      __sys_sendmsg+0xcd/0x170
[ 2633.470928][   T73]      do_syscall_64+0xc6/0x1e0
[ 2633.470928][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2633.470928][   T73] 
[ 2633.472607][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2633.472884][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2633.472884][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2633.472884][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2633.472884][   T73]      fib6_nh_init+0xa22/0x1580
[ 2633.472884][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2633.472884][   T73]      ip6_route_add+0x1c/0x140
[ 2633.472884][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2633.472884][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2633.472884][   T73]      netlink_rcv_skb+0x130/0x360
[ 2633.472884][   T73]      netlink_unicast+0x449/0x710
[ 2633.472884][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2633.472884][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2633.472884][   T73]      ___sys_sendmsg+0xee/0x170
[ 2633.472884][   T73]      __sys_sendmsg+0xcd/0x170
[ 2633.472884][   T73]      do_syscall_64+0xc6/0x1e0
[ 2633.472884][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2633.472884][   T73] 
[ 2633.474920][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2633.474920][   T73]      dst_init+0x84/0x4a0
[ 2633.474920][   T73]      dst_alloc+0x97/0x150
[ 2633.474920][   T73]      ip6_dst_alloc+0x23/0x90
[ 2633.474920][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2633.474920][   T73]      ip6_pol_route+0x56f/0x840
[ 2633.474920][   T73]      fib6_rule_lookup+0x456/0x630
[ 2633.474920][   T73]      ip6_route_input+0x59c/0xa50
[ 2633.474920][   T73]      ipv6_rcv+0x397/0x810
[ 2633.474920][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2633.474920][   T73]      process_backlog+0x101/0x620
[ 2633.474920][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2633.474920][   T73]      net_rx_action+0x495/0xbe0
[ 2633.474920][   T73]      __do_softirq+0x1b5/0x7f6
[ 2633.474920][   T73] 
[ 2633.476618][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2633.476618][   T73]      netdev_get_by_index+0x5e/0x80
[ 2633.476618][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2633.476618][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2633.476618][   T73]      ip6_route_add+0x1c/0x140
[ 2633.476618][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2633.476618][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2633.476618][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2633.476618][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2633.476618][   T73]      netlink_rcv_skb+0x130/0x360
[ 2633.476618][   T73]      netlink_unicast+0x449/0x710
[ 2633.476618][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2633.476618][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2633.476618][   T73]      ___sys_sendmsg+0xee/0x170
[ 2633.476618][   T73]      __sys_sendmsg+0xcd/0x170
[ 2633.476618][   T73]      do_syscall_64+0xc6/0x1e0
[ 2633.476618][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2633.476618][   T73] 
[ 2633.478735][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2633.478735][   T73]      netdev_get_by_index+0x5e/0x80
[ 2633.478735][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2633.478735][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2633.478735][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2633.478735][   T73]      ipv6_add_addr+0x411/0x2000
[ 2633.478735][   T73]      inet6_addr_add+0x30e/0xa40
[ 2633.478735][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2633.478735][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2633.478735][   T73]      netlink_rcv_skb+0x130/0x360
[ 2633.478735][   T73]      netlink_unicast+0x449/0x710
[ 2633.478735][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2633.478735][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2633.478735][   T73]      ___sys_sendmsg+0xee/0x170
[ 2633.478735][   T73]      __sys_sendmsg+0xcd/0x170
[ 2633.478735][   T73]      do_syscall_64+0xc6/0x1e0
[ 2633.478735][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2633.478735][   T73] 
[ 2633.480863][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2633.480863][   T73]      netdev_get_by_index+0x5e/0x80
[ 2633.480863][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2633.480863][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2633.480863][   T73]      ip6_route_add+0x1c/0x140
[ 2633.480863][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2633.480863][   T73]      addrconf_add_dev+0xe2/0x170
[ 2633.480863][   T73]      inet6_addr_add+0x12f/0xa40
[ 2633.480863][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2633.480863][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2633.480863][   T73]      netlink_rcv_skb+0x130/0x360
[ 2633.480863][   T73]      netlink_unicast+0x449/0x710
[ 2633.480863][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2633.480863][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2633.480863][   T73]      ___sys_sendmsg+0xee/0x170
[ 2633.480863][   T73]      __sys_sendmsg+0xcd/0x170
[ 2633.480863][   T73]      do_syscall_64+0xc6/0x1e0
[ 2633.480863][   T73] 
[ 2633.482950][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2633.482950][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2633.482950][   T73]      ipv6_find_idev+0x102/0x170
[ 2633.482950][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2633.482950][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2633.482950][   T73]      netlink_rcv_skb+0x130/0x360
[ 2633.482950][   T73]      netlink_unicast+0x449/0x710
[ 2633.482950][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2633.482950][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2633.482950][   T73]      ___sys_sendmsg+0xee/0x170
[ 2633.482950][   T73]      __sys_sendmsg+0xcd/0x170
[ 2633.482950][   T73]      do_syscall_64+0xc6/0x1e0
[ 2633.482950][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2633.482950][   T73] 
[ 2633.484566][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2633.484566][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2633.484566][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2633.484566][   T73]      ipv6_find_idev+0x102/0x170
[ 2633.484566][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2633.484566][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2633.484566][   T73]      netlink_rcv_skb+0x130/0x360
[ 2633.484566][   T73]      netlink_unicast+0x449/0x710
[ 2633.484566][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2633.484566][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2633.484566][   T73]      ___sys_sendmsg+0xee/0x170
[ 2633.484566][   T73]      __sys_sendmsg+0xcd/0x170
[ 2633.484566][   T73]      do_syscall_64+0xc6/0x1e0
[ 2633.484566][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2633.484566][   T73] 
[ 2633.486384][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2633.486677][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2633.486677][   T73]      netdev_get_by_index+0x5e/0x80
[ 2633.486677][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2633.486677][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2633.486677][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2633.486677][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2633.486677][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2633.486677][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2633.486677][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2633.486677][   T73]      addrconf_dad_begin+0x310/0x670
[ 2633.486677][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2633.486677][   T73]      process_one_work+0x84d/0x18a0
[ 2633.486677][   T73]      worker_thread+0x587/0xd30
[ 2633.486677][   T73]      kthread+0x28a/0x350
[ 2633.486677][   T73]      ret_from_fork+0x31/0x70
[ 2633.486677][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2633.486677][   T73] 
[ 2633.488739][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2633.488739][   T73]      netdev_get_by_index+0x5e/0x80
[ 2633.488739][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2633.488739][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2633.488739][   T73]      ip6_route_add+0x1c/0x140
[ 2633.488739][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2633.488739][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2633.488739][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2633.488739][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2633.488739][   T73]      netlink_rcv_skb+0x130/0x360
[ 2633.488739][   T73]      netlink_unicast+0x449/0x710
[ 2633.488739][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2633.488739][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2633.488739][   T73]      ___sys_sendmsg+0xee/0x170
[ 2633.488739][   T73]      __sys_sendmsg+0xcd/0x170
[ 2633.488739][   T73]      do_syscall_64+0xc6/0x1e0
[ 2633.488739][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2633.488739][   T73] 
[ 2633.490863][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2633.490863][   T73]      netdev_get_by_index+0x5e/0x80
[ 2633.490863][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2633.490863][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2633.490863][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2633.490863][   T73]      ipv6_add_addr+0x411/0x2000
[ 2633.490863][   T73]      inet6_addr_add+0x30e/0xa40
[ 2633.490863][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2633.490863][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2633.490863][   T73]      netlink_rcv_skb+0x130/0x360
[ 2633.490863][   T73]      netlink_unicast+0x449/0x710
[ 2633.490863][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2633.490863][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2633.490863][   T73]      ___sys_sendmsg+0xee/0x170
[ 2633.490863][   T73]      __sys_sendmsg+0xcd/0x170
[ 2633.490863][   T73]      do_syscall_64+0xc6/0x1e0
[ 2633.490863][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2633.490863][   T73] 
[ 2633.492996][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2633.492996][   T73]      netdev_get_by_index+0x5e/0x80
[ 2633.492996][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2633.492996][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2633.492996][   T73]      ip6_route_add+0x1c/0x140
[ 2633.492996][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2633.492996][   T73]      addrconf_add_dev+0xe2/0x170
[ 2633.492996][   T73]      inet6_addr_add+0x12f/0xa40
[ 2633.492996][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2633.492996][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2633.492996][   T73]      netlink_rcv_skb+0x130/0x360
[ 2633.492996][   T73]      netlink_unicast+0x449/0x710
[ 2633.492996][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2633.492996][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2633.492996][   T73]      ___sys_sendmsg+0xee/0x170
[ 2633.492996][   T73]      __sys_sendmsg+0xcd/0x170
[ 2633.492996][   T73]      do_syscall_64+0xc6/0x1e0
[ 2633.492996][   T73] 
[ 2633.495018][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2633.495018][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2633.495018][   T73]      ipv6_find_idev+0x102/0x170
[ 2633.495018][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2633.495018][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2633.495018][   T73]      netlink_rcv_skb+0x130/0x360
[ 2633.495018][   T73]      netlink_unicast+0x449/0x710
[ 2633.495018][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2633.495018][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2633.495018][   T73]      ___sys_sendmsg+0xee/0x170
[ 2633.495018][   T73]      __sys_sendmsg+0xcd/0x170
[ 2633.495018][   T73]      do_syscall_64+0xc6/0x1e0
[ 2633.495018][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2633.495018][   T73] 
[ 2633.496676][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2633.496676][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2633.496676][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2633.496676][   T73]      ipv6_find_idev+0x102/0x170
[ 2633.496676][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2633.496676][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2633.496676][   T73]      netlink_rcv_skb+0x130/0x360
[ 2633.496676][   T73]      netlink_unicast+0x449/0x710
[ 2633.496676][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2633.496676][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2633.496676][   T73]      ___sys_sendmsg+0xee/0x170
[ 2633.496676][   T73]      __sys_sendmsg+0xcd/0x170
[ 2633.496676][   T73]      do_syscall_64+0xc6/0x1e0
[ 2633.496676][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2633.496676][   T73] 
[ 2643.751846][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2643.752541][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2643.752541][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2643.752541][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2643.752541][   T73]      fib6_nh_init+0xa22/0x1580
[ 2643.752541][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2643.752541][   T73]      ip6_route_add+0x1c/0x140
[ 2643.752541][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2643.752541][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2643.752541][   T73]      netlink_rcv_skb+0x130/0x360
[ 2643.752541][   T73]      netlink_unicast+0x449/0x710
[ 2643.752541][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2643.752541][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2643.752541][   T73]      ___sys_sendmsg+0xee/0x170
[ 2643.752541][   T73]      __sys_sendmsg+0xcd/0x170
[ 2643.752541][   T73]      do_syscall_64+0xc6/0x1e0
[ 2643.752541][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2643.752541][   T73] 
[ 2643.755464][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2643.755464][   T73]      dst_init+0x84/0x4a0
[ 2643.755464][   T73]      dst_alloc+0x97/0x150
[ 2643.755464][   T73]      ip6_dst_alloc+0x23/0x90
[ 2643.755464][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2643.755464][   T73]      ip6_pol_route+0x56f/0x840
[ 2643.755464][   T73]      fib6_rule_lookup+0x456/0x630
[ 2643.755464][   T73]      ip6_route_input+0x59c/0xa50
[ 2643.755464][   T73]      ipv6_rcv+0x397/0x810
[ 2643.755464][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2643.755464][   T73]      process_backlog+0x101/0x620
[ 2643.755464][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2643.755464][   T73]      net_rx_action+0x495/0xbe0
[ 2643.755464][   T73]      __do_softirq+0x1b5/0x7f6
[ 2643.755464][   T73] 
[ 2643.758096][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2643.758096][   T73]      netdev_get_by_index+0x5e/0x80
[ 2643.758096][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2643.758096][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2643.758096][   T73]      ip6_route_add+0x1c/0x140
[ 2643.758096][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2643.758096][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2643.758096][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2643.758096][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2643.758096][   T73]      netlink_rcv_skb+0x130/0x360
[ 2643.758096][   T73]      netlink_unicast+0x449/0x710
[ 2643.758096][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2643.758096][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2643.758096][   T73]      ___sys_sendmsg+0xee/0x170
[ 2643.758096][   T73]      __sys_sendmsg+0xcd/0x170
[ 2643.758096][   T73]      do_syscall_64+0xc6/0x1e0
[ 2643.758096][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2643.758096][   T73] 
[ 2643.761272][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2643.761272][   T73]      netdev_get_by_index+0x5e/0x80
[ 2643.761272][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2643.761272][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2643.761272][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2643.761272][   T73]      ipv6_add_addr+0x411/0x2000
[ 2643.761272][   T73]      inet6_addr_add+0x30e/0xa40
[ 2643.761272][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2643.761272][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2643.761272][   T73]      netlink_rcv_skb+0x130/0x360
[ 2643.761272][   T73]      netlink_unicast+0x449/0x710
[ 2643.761272][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2643.761272][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2643.761272][   T73]      ___sys_sendmsg+0xee/0x170
[ 2643.761272][   T73]      __sys_sendmsg+0xcd/0x170
[ 2643.761272][   T73]      do_syscall_64+0xc6/0x1e0
[ 2643.761272][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2643.761272][   T73] 
[ 2643.763521][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2643.763521][   T73]      netdev_get_by_index+0x5e/0x80
[ 2643.763521][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2643.763521][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2643.763521][   T73]      ip6_route_add+0x1c/0x140
[ 2643.763521][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2643.763521][   T73]      addrconf_add_dev+0xe2/0x170
[ 2643.763521][   T73]      inet6_addr_add+0x12f/0xa40
[ 2643.763521][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2643.763521][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2643.763521][   T73]      netlink_rcv_skb+0x130/0x360
[ 2643.763521][   T73]      netlink_unicast+0x449/0x710
[ 2643.763521][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2643.763521][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2643.763521][   T73]      ___sys_sendmsg+0xee/0x170
[ 2643.763521][   T73]      __sys_sendmsg+0xcd/0x170
[ 2643.763521][   T73]      do_syscall_64+0xc6/0x1e0
[ 2643.763521][   T73] 
[ 2643.765517][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2643.765517][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2643.765517][   T73]      ipv6_find_idev+0x102/0x170
[ 2643.765517][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2643.765517][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2643.765517][   T73]      netlink_rcv_skb+0x130/0x360
[ 2643.765517][   T73]      netlink_unicast+0x449/0x710
[ 2643.765517][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2643.765517][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2643.765517][   T73]      ___sys_sendmsg+0xee/0x170
[ 2643.765517][   T73]      __sys_sendmsg+0xcd/0x170
[ 2643.765517][   T73]      do_syscall_64+0xc6/0x1e0
[ 2643.765517][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2643.765517][   T73] 
[ 2643.767083][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2643.767083][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2643.767083][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2643.767083][   T73]      ipv6_find_idev+0x102/0x170
[ 2643.767083][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2643.767083][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2643.767083][   T73]      netlink_rcv_skb+0x130/0x360
[ 2643.767083][   T73]      netlink_unicast+0x449/0x710
[ 2643.767083][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2643.767083][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2643.767083][   T73]      ___sys_sendmsg+0xee/0x170
[ 2643.767083][   T73]      __sys_sendmsg+0xcd/0x170
[ 2643.767083][   T73]      do_syscall_64+0xc6/0x1e0
[ 2643.767083][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2643.767083][   T73] 
[ 2643.769263][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2643.769559][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2643.769559][   T73]      netdev_get_by_index+0x5e/0x80
[ 2643.769559][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2643.769559][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2643.769559][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2643.769559][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2643.769559][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2643.769559][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2643.769559][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2643.769559][   T73]      addrconf_dad_begin+0x310/0x670
[ 2643.769559][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2643.769559][   T73]      process_one_work+0x84d/0x18a0
[ 2643.769559][   T73]      worker_thread+0x587/0xd30
[ 2643.769559][   T73]      kthread+0x28a/0x350
[ 2643.769559][   T73]      ret_from_fork+0x31/0x70
[ 2643.769559][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2643.769559][   T73] 
[ 2643.771552][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2643.771552][   T73]      netdev_get_by_index+0x5e/0x80
[ 2643.771552][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2643.771552][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2643.771552][   T73]      ip6_route_add+0x1c/0x140
[ 2643.771552][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2643.771552][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2643.771552][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2643.771552][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2643.771552][   T73]      netlink_rcv_skb+0x130/0x360
[ 2643.771552][   T73]      netlink_unicast+0x449/0x710
[ 2643.771552][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2643.771552][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2643.771552][   T73]      ___sys_sendmsg+0xee/0x170
[ 2643.771552][   T73]      __sys_sendmsg+0xcd/0x170
[ 2643.771552][   T73]      do_syscall_64+0xc6/0x1e0
[ 2643.771552][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2643.771552][   T73] 
[ 2643.773580][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2643.773580][   T73]      netdev_get_by_index+0x5e/0x80
[ 2643.773580][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2643.773580][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2643.773580][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2643.773580][   T73]      ipv6_add_addr+0x411/0x2000
[ 2643.773580][   T73]      inet6_addr_add+0x30e/0xa40
[ 2643.773580][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2643.773580][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2643.773580][   T73]      netlink_rcv_skb+0x130/0x360
[ 2643.773580][   T73]      netlink_unicast+0x449/0x710
[ 2643.773580][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2643.773580][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2643.773580][   T73]      ___sys_sendmsg+0xee/0x170
[ 2643.773580][   T73]      __sys_sendmsg+0xcd/0x170
[ 2643.773580][   T73]      do_syscall_64+0xc6/0x1e0
[ 2643.773580][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2643.773580][   T73] 
[ 2643.775689][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2643.775689][   T73]      netdev_get_by_index+0x5e/0x80
[ 2643.775689][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2643.775689][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2643.775689][   T73]      ip6_route_add+0x1c/0x140
[ 2643.775689][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2643.775689][   T73]      addrconf_add_dev+0xe2/0x170
[ 2643.775689][   T73]      inet6_addr_add+0x12f/0xa40
[ 2643.775689][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2643.775689][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2643.775689][   T73]      netlink_rcv_skb+0x130/0x360
[ 2643.775689][   T73]      netlink_unicast+0x449/0x710
[ 2643.775689][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2643.775689][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2643.775689][   T73]      ___sys_sendmsg+0xee/0x170
[ 2643.775689][   T73]      __sys_sendmsg+0xcd/0x170
[ 2643.775689][   T73]      do_syscall_64+0xc6/0x1e0
[ 2643.775689][   T73] 
[ 2643.777656][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2643.777656][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2643.777656][   T73]      ipv6_find_idev+0x102/0x170
[ 2643.777656][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2643.777656][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2643.777656][   T73]      netlink_rcv_skb+0x130/0x360
[ 2643.777656][   T73]      netlink_unicast+0x449/0x710
[ 2643.777656][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2643.777656][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2643.777656][   T73]      ___sys_sendmsg+0xee/0x170
[ 2643.777656][   T73]      __sys_sendmsg+0xcd/0x170
[ 2643.777656][   T73]      do_syscall_64+0xc6/0x1e0
[ 2643.777656][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2643.777656][   T73] 
[ 2643.779207][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2643.779207][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2643.779207][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2643.779207][   T73]      ipv6_find_idev+0x102/0x170
[ 2643.779207][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2643.779207][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2643.779207][   T73]      netlink_rcv_skb+0x130/0x360
[ 2643.779207][   T73]      netlink_unicast+0x449/0x710
[ 2643.779207][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2643.779207][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2643.779207][   T73]      ___sys_sendmsg+0xee/0x170
[ 2643.779207][   T73]      __sys_sendmsg+0xcd/0x170
[ 2643.779207][   T73]      do_syscall_64+0xc6/0x1e0
[ 2643.779207][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2643.779207][   T73] 
[ 2643.780893][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2643.781169][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2643.781169][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2643.781169][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2643.781169][   T73]      fib6_nh_init+0xa22/0x1580
[ 2643.781169][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2643.781169][   T73]      ip6_route_add+0x1c/0x140
[ 2643.781169][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2643.781169][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2643.781169][   T73]      netlink_rcv_skb+0x130/0x360
[ 2643.781169][   T73]      netlink_unicast+0x449/0x710
[ 2643.781169][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2643.781169][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2643.781169][   T73]      ___sys_sendmsg+0xee/0x170
[ 2643.781169][   T73]      __sys_sendmsg+0xcd/0x170
[ 2643.781169][   T73]      do_syscall_64+0xc6/0x1e0
[ 2643.781169][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2643.781169][   T73] 
[ 2643.783264][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2643.783264][   T73]      dst_init+0x84/0x4a0
[ 2643.783264][   T73]      dst_alloc+0x97/0x150
[ 2643.783264][   T73]      ip6_dst_alloc+0x23/0x90
[ 2643.783264][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2643.783264][   T73]      ip6_pol_route+0x56f/0x840
[ 2643.783264][   T73]      fib6_rule_lookup+0x456/0x630
[ 2643.783264][   T73]      ip6_route_input+0x59c/0xa50
[ 2643.783264][   T73]      ipv6_rcv+0x397/0x810
[ 2643.783264][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2643.783264][   T73]      process_backlog+0x101/0x620
[ 2643.783264][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2643.783264][   T73]      net_rx_action+0x495/0xbe0
[ 2643.783264][   T73]      __do_softirq+0x1b5/0x7f6
[ 2643.783264][   T73] 
[ 2643.785628][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2643.785628][   T73]      netdev_get_by_index+0x5e/0x80
[ 2643.785628][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2643.785628][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2643.785628][   T73]      ip6_route_add+0x1c/0x140
[ 2643.785628][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2643.785628][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2643.785628][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2643.785628][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2643.785628][   T73]      netlink_rcv_skb+0x130/0x360
[ 2643.785628][   T73]      netlink_unicast+0x449/0x710
[ 2643.785628][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2643.785628][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2643.785628][   T73]      ___sys_sendmsg+0xee/0x170
[ 2643.785628][   T73]      __sys_sendmsg+0xcd/0x170
[ 2643.785628][   T73]      do_syscall_64+0xc6/0x1e0
[ 2643.785628][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2643.785628][   T73] 
[ 2643.787887][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2643.787887][   T73]      netdev_get_by_index+0x5e/0x80
[ 2643.787887][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2643.787887][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2643.787887][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2643.787887][   T73]      ipv6_add_addr+0x411/0x2000
[ 2643.787887][   T73]      inet6_addr_add+0x30e/0xa40
[ 2643.787887][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2643.787887][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2643.787887][   T73]      netlink_rcv_skb+0x130/0x360
[ 2643.787887][   T73]      netlink_unicast+0x449/0x710
[ 2643.787887][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2643.787887][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2643.787887][   T73]      ___sys_sendmsg+0xee/0x170
[ 2643.787887][   T73]      __sys_sendmsg+0xcd/0x170
[ 2643.787887][   T73]      do_syscall_64+0xc6/0x1e0
[ 2643.787887][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2643.787887][   T73] 
[ 2643.790157][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2643.790157][   T73]      netdev_get_by_index+0x5e/0x80
[ 2643.790157][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2643.790157][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2643.790157][   T73]      ip6_route_add+0x1c/0x140
[ 2643.790157][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2643.790157][   T73]      addrconf_add_dev+0xe2/0x170
[ 2643.790157][   T73]      inet6_addr_add+0x12f/0xa40
[ 2643.790157][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2643.790157][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2643.790157][   T73]      netlink_rcv_skb+0x130/0x360
[ 2643.790157][   T73]      netlink_unicast+0x449/0x710
[ 2643.790157][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2643.790157][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2643.790157][   T73]      ___sys_sendmsg+0xee/0x170
[ 2643.790157][   T73]      __sys_sendmsg+0xcd/0x170
[ 2643.790157][   T73]      do_syscall_64+0xc6/0x1e0
[ 2643.790157][   T73] 
[ 2643.792279][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2643.792279][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2643.792279][   T73]      ipv6_find_idev+0x102/0x170
[ 2643.792279][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2643.792279][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2643.792279][   T73]      netlink_rcv_skb+0x130/0x360
[ 2643.792279][   T73]      netlink_unicast+0x449/0x710
[ 2643.792279][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2643.792279][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2643.792279][   T73]      ___sys_sendmsg+0xee/0x170
[ 2643.792279][   T73]      __sys_sendmsg+0xcd/0x170
[ 2643.792279][   T73]      do_syscall_64+0xc6/0x1e0
[ 2643.792279][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2643.792279][   T73] 
[ 2643.794070][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2643.794070][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2643.794070][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2643.794070][   T73]      ipv6_find_idev+0x102/0x170
[ 2643.794070][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2643.794070][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2643.794070][   T73]      netlink_rcv_skb+0x130/0x360
[ 2643.794070][   T73]      netlink_unicast+0x449/0x710
[ 2643.794070][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2643.794070][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2643.794070][   T73]      ___sys_sendmsg+0xee/0x170
[ 2643.794070][   T73]      __sys_sendmsg+0xcd/0x170
[ 2643.794070][   T73]      do_syscall_64+0xc6/0x1e0
[ 2643.794070][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2643.794070][   T73] 
[ 2643.796021][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2643.796304][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2643.796304][   T73]      netdev_get_by_index+0x5e/0x80
[ 2643.796304][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2643.796304][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2643.796304][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2643.796304][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2643.796304][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2643.796304][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2643.796304][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2643.796304][   T73]      addrconf_dad_begin+0x310/0x670
[ 2643.796304][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2643.796304][   T73]      process_one_work+0x84d/0x18a0
[ 2643.796304][   T73]      worker_thread+0x587/0xd30
[ 2643.796304][   T73]      kthread+0x28a/0x350
[ 2643.796304][   T73]      ret_from_fork+0x31/0x70
[ 2643.796304][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2643.796304][   T73] 
[ 2643.798891][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2643.798891][   T73]      netdev_get_by_index+0x5e/0x80
[ 2643.798891][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2643.798891][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2643.798891][   T73]      ip6_route_add+0x1c/0x140
[ 2643.798891][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2643.798891][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2643.798891][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2643.798891][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2643.798891][   T73]      netlink_rcv_skb+0x130/0x360
[ 2643.798891][   T73]      netlink_unicast+0x449/0x710
[ 2643.798891][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2643.798891][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2643.798891][   T73]      ___sys_sendmsg+0xee/0x170
[ 2643.798891][   T73]      __sys_sendmsg+0xcd/0x170
[ 2643.798891][   T73]      do_syscall_64+0xc6/0x1e0
[ 2643.798891][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2643.798891][   T73] 
[ 2643.801075][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2643.801075][   T73]      netdev_get_by_index+0x5e/0x80
[ 2643.801075][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2643.801075][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2643.801075][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2643.801075][   T73]      ipv6_add_addr+0x411/0x2000
[ 2643.801075][   T73]      inet6_addr_add+0x30e/0xa40
[ 2643.801075][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2643.801075][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2643.801075][   T73]      netlink_rcv_skb+0x130/0x360
[ 2643.801075][   T73]      netlink_unicast+0x449/0x710
[ 2643.801075][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2643.801075][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2643.801075][   T73]      ___sys_sendmsg+0xee/0x170
[ 2643.801075][   T73]      __sys_sendmsg+0xcd/0x170
[ 2643.801075][   T73]      do_syscall_64+0xc6/0x1e0
[ 2643.801075][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2643.801075][   T73] 
[ 2643.803340][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2643.803340][   T73]      netdev_get_by_index+0x5e/0x80
[ 2643.803340][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2643.803340][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2643.803340][   T73]      ip6_route_add+0x1c/0x140
[ 2643.803340][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2643.803340][   T73]      addrconf_add_dev+0xe2/0x170
[ 2643.803340][   T73]      inet6_addr_add+0x12f/0xa40
[ 2643.803340][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2643.803340][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2643.803340][   T73]      netlink_rcv_skb+0x130/0x360
[ 2643.803340][   T73]      netlink_unicast+0x449/0x710
[ 2643.803340][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2643.803340][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2643.803340][   T73]      ___sys_sendmsg+0xee/0x170
[ 2643.803340][   T73]      __sys_sendmsg+0xcd/0x170
[ 2643.803340][   T73]      do_syscall_64+0xc6/0x1e0
[ 2643.803340][   T73] 
[ 2643.805596][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2643.805596][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2643.805596][   T73]      ipv6_find_idev+0x102/0x170
[ 2643.805596][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2643.805596][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2643.805596][   T73]      netlink_rcv_skb+0x130/0x360
[ 2643.805596][   T73]      netlink_unicast+0x449/0x710
[ 2643.805596][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2643.805596][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2643.805596][   T73]      ___sys_sendmsg+0xee/0x170
[ 2643.805596][   T73]      __sys_sendmsg+0xcd/0x170
[ 2643.805596][   T73]      do_syscall_64+0xc6/0x1e0
[ 2643.805596][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2643.805596][   T73] 
[ 2643.807337][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2643.807337][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2643.807337][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2643.807337][   T73]      ipv6_find_idev+0x102/0x170
[ 2643.807337][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2643.807337][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2643.807337][   T73]      netlink_rcv_skb+0x130/0x360
[ 2643.807337][   T73]      netlink_unicast+0x449/0x710
[ 2643.807337][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2643.807337][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2643.807337][   T73]      ___sys_sendmsg+0xee/0x170
[ 2643.807337][   T73]      __sys_sendmsg+0xcd/0x170
[ 2643.807337][   T73]      do_syscall_64+0xc6/0x1e0
[ 2643.807337][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2643.807337][   T73] 
[ 2654.047786][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2654.048228][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2654.048228][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2654.048228][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2654.048228][   T73]      fib6_nh_init+0xa22/0x1580
[ 2654.048228][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2654.048228][   T73]      ip6_route_add+0x1c/0x140
[ 2654.048228][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2654.048228][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2654.048228][   T73]      netlink_rcv_skb+0x130/0x360
[ 2654.048228][   T73]      netlink_unicast+0x449/0x710
[ 2654.048228][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2654.048228][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2654.048228][   T73]      ___sys_sendmsg+0xee/0x170
[ 2654.048228][   T73]      __sys_sendmsg+0xcd/0x170
[ 2654.048228][   T73]      do_syscall_64+0xc6/0x1e0
[ 2654.048228][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2654.048228][   T73] 
[ 2654.050134][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2654.050134][   T73]      dst_init+0x84/0x4a0
[ 2654.050134][   T73]      dst_alloc+0x97/0x150
[ 2654.050134][   T73]      ip6_dst_alloc+0x23/0x90
[ 2654.050134][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2654.050134][   T73]      ip6_pol_route+0x56f/0x840
[ 2654.050134][   T73]      fib6_rule_lookup+0x456/0x630
[ 2654.050134][   T73]      ip6_route_input+0x59c/0xa50
[ 2654.050134][   T73]      ipv6_rcv+0x397/0x810
[ 2654.050134][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2654.050134][   T73]      process_backlog+0x101/0x620
[ 2654.050134][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2654.050134][   T73]      net_rx_action+0x495/0xbe0
[ 2654.050134][   T73]      __do_softirq+0x1b5/0x7f6
[ 2654.050134][   T73] 
[ 2654.051777][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2654.051777][   T73]      netdev_get_by_index+0x5e/0x80
[ 2654.051777][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2654.051777][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2654.051777][   T73]      ip6_route_add+0x1c/0x140
[ 2654.051777][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2654.051777][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2654.051777][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2654.051777][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2654.051777][   T73]      netlink_rcv_skb+0x130/0x360
[ 2654.051777][   T73]      netlink_unicast+0x449/0x710
[ 2654.051777][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2654.051777][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2654.051777][   T73]      ___sys_sendmsg+0xee/0x170
[ 2654.051777][   T73]      __sys_sendmsg+0xcd/0x170
[ 2654.051777][   T73]      do_syscall_64+0xc6/0x1e0
[ 2654.051777][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2654.051777][   T73] 
[ 2654.053778][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2654.053778][   T73]      netdev_get_by_index+0x5e/0x80
[ 2654.053778][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2654.053778][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2654.053778][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2654.053778][   T73]      ipv6_add_addr+0x411/0x2000
[ 2654.053778][   T73]      inet6_addr_add+0x30e/0xa40
[ 2654.053778][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2654.053778][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2654.053778][   T73]      netlink_rcv_skb+0x130/0x360
[ 2654.053778][   T73]      netlink_unicast+0x449/0x710
[ 2654.053778][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2654.053778][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2654.053778][   T73]      ___sys_sendmsg+0xee/0x170
[ 2654.053778][   T73]      __sys_sendmsg+0xcd/0x170
[ 2654.053778][   T73]      do_syscall_64+0xc6/0x1e0
[ 2654.053778][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2654.053778][   T73] 
[ 2654.055781][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2654.055781][   T73]      netdev_get_by_index+0x5e/0x80
[ 2654.055781][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2654.055781][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2654.055781][   T73]      ip6_route_add+0x1c/0x140
[ 2654.055781][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2654.055781][   T73]      addrconf_add_dev+0xe2/0x170
[ 2654.055781][   T73]      inet6_addr_add+0x12f/0xa40
[ 2654.055781][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2654.055781][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2654.055781][   T73]      netlink_rcv_skb+0x130/0x360
[ 2654.055781][   T73]      netlink_unicast+0x449/0x710
[ 2654.055781][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2654.055781][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2654.055781][   T73]      ___sys_sendmsg+0xee/0x170
[ 2654.055781][   T73]      __sys_sendmsg+0xcd/0x170
[ 2654.055781][   T73]      do_syscall_64+0xc6/0x1e0
[ 2654.055781][   T73] 
[ 2654.057736][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2654.057736][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2654.057736][   T73]      ipv6_find_idev+0x102/0x170
[ 2654.057736][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2654.057736][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2654.057736][   T73]      netlink_rcv_skb+0x130/0x360
[ 2654.057736][   T73]      netlink_unicast+0x449/0x710
[ 2654.057736][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2654.057736][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2654.057736][   T73]      ___sys_sendmsg+0xee/0x170
[ 2654.057736][   T73]      __sys_sendmsg+0xcd/0x170
[ 2654.057736][   T73]      do_syscall_64+0xc6/0x1e0
[ 2654.057736][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2654.057736][   T73] 
[ 2654.059280][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2654.059280][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2654.059280][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2654.059280][   T73]      ipv6_find_idev+0x102/0x170
[ 2654.059280][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2654.059280][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2654.059280][   T73]      netlink_rcv_skb+0x130/0x360
[ 2654.059280][   T73]      netlink_unicast+0x449/0x710
[ 2654.059280][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2654.059280][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2654.059280][   T73]      ___sys_sendmsg+0xee/0x170
[ 2654.059280][   T73]      __sys_sendmsg+0xcd/0x170
[ 2654.059280][   T73]      do_syscall_64+0xc6/0x1e0
[ 2654.059280][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2654.059280][   T73] 
[ 2654.060964][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2654.061252][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2654.061252][   T73]      netdev_get_by_index+0x5e/0x80
[ 2654.061252][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2654.061252][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2654.061252][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2654.061252][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2654.061252][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2654.061252][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2654.061252][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2654.061252][   T73]      addrconf_dad_begin+0x310/0x670
[ 2654.061252][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2654.061252][   T73]      process_one_work+0x84d/0x18a0
[ 2654.061252][   T73]      worker_thread+0x587/0xd30
[ 2654.061252][   T73]      kthread+0x28a/0x350
[ 2654.061252][   T73]      ret_from_fork+0x31/0x70
[ 2654.061252][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2654.061252][   T73] 
[ 2654.063220][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2654.063220][   T73]      netdev_get_by_index+0x5e/0x80
[ 2654.063220][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2654.063220][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2654.063220][   T73]      ip6_route_add+0x1c/0x140
[ 2654.063220][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2654.063220][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2654.063220][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2654.063220][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2654.063220][   T73]      netlink_rcv_skb+0x130/0x360
[ 2654.063220][   T73]      netlink_unicast+0x449/0x710
[ 2654.063220][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2654.063220][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2654.063220][   T73]      ___sys_sendmsg+0xee/0x170
[ 2654.063220][   T73]      __sys_sendmsg+0xcd/0x170
[ 2654.063220][   T73]      do_syscall_64+0xc6/0x1e0
[ 2654.063220][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2654.063220][   T73] 
[ 2654.065240][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2654.065240][   T73]      netdev_get_by_index+0x5e/0x80
[ 2654.065240][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2654.065240][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2654.065240][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2654.065240][   T73]      ipv6_add_addr+0x411/0x2000
[ 2654.065240][   T73]      inet6_addr_add+0x30e/0xa40
[ 2654.065240][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2654.065240][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2654.065240][   T73]      netlink_rcv_skb+0x130/0x360
[ 2654.065240][   T73]      netlink_unicast+0x449/0x710
[ 2654.065240][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2654.065240][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2654.065240][   T73]      ___sys_sendmsg+0xee/0x170
[ 2654.065240][   T73]      __sys_sendmsg+0xcd/0x170
[ 2654.065240][   T73]      do_syscall_64+0xc6/0x1e0
[ 2654.065240][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2654.065240][   T73] 
[ 2654.067256][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2654.067256][   T73]      netdev_get_by_index+0x5e/0x80
[ 2654.067256][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2654.067256][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2654.067256][   T73]      ip6_route_add+0x1c/0x140
[ 2654.067256][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2654.067256][   T73]      addrconf_add_dev+0xe2/0x170
[ 2654.067256][   T73]      inet6_addr_add+0x12f/0xa40
[ 2654.067256][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2654.067256][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2654.067256][   T73]      netlink_rcv_skb+0x130/0x360
[ 2654.067256][   T73]      netlink_unicast+0x449/0x710
[ 2654.067256][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2654.067256][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2654.067256][   T73]      ___sys_sendmsg+0xee/0x170
[ 2654.067256][   T73]      __sys_sendmsg+0xcd/0x170
[ 2654.067256][   T73]      do_syscall_64+0xc6/0x1e0
[ 2654.067256][   T73] 
[ 2654.069204][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2654.069204][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2654.069204][   T73]      ipv6_find_idev+0x102/0x170
[ 2654.069204][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2654.069204][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2654.069204][   T73]      netlink_rcv_skb+0x130/0x360
[ 2654.069204][   T73]      netlink_unicast+0x449/0x710
[ 2654.069204][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2654.069204][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2654.069204][   T73]      ___sys_sendmsg+0xee/0x170
[ 2654.069204][   T73]      __sys_sendmsg+0xcd/0x170
[ 2654.069204][   T73]      do_syscall_64+0xc6/0x1e0
[ 2654.069204][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2654.069204][   T73] 
[ 2654.070766][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2654.070766][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2654.070766][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2654.070766][   T73]      ipv6_find_idev+0x102/0x170
[ 2654.070766][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2654.070766][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2654.070766][   T73]      netlink_rcv_skb+0x130/0x360
[ 2654.070766][   T73]      netlink_unicast+0x449/0x710
[ 2654.070766][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2654.070766][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2654.070766][   T73]      ___sys_sendmsg+0xee/0x170
[ 2654.070766][   T73]      __sys_sendmsg+0xcd/0x170
[ 2654.070766][   T73]      do_syscall_64+0xc6/0x1e0
[ 2654.070766][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2654.070766][   T73] 
[ 2654.072456][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2654.072742][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2654.072742][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2654.072742][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2654.072742][   T73]      fib6_nh_init+0xa22/0x1580
[ 2654.072742][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2654.072742][   T73]      ip6_route_add+0x1c/0x140
[ 2654.072742][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2654.072742][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2654.072742][   T73]      netlink_rcv_skb+0x130/0x360
[ 2654.072742][   T73]      netlink_unicast+0x449/0x710
[ 2654.072742][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2654.072742][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2654.072742][   T73]      ___sys_sendmsg+0xee/0x170
[ 2654.072742][   T73]      __sys_sendmsg+0xcd/0x170
[ 2654.072742][   T73]      do_syscall_64+0xc6/0x1e0
[ 2654.072742][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2654.072742][   T73] 
[ 2654.074779][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2654.074779][   T73]      dst_init+0x84/0x4a0
[ 2654.074779][   T73]      dst_alloc+0x97/0x150
[ 2654.074779][   T73]      ip6_dst_alloc+0x23/0x90
[ 2654.074779][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2654.074779][   T73]      ip6_pol_route+0x56f/0x840
[ 2654.074779][   T73]      fib6_rule_lookup+0x456/0x630
[ 2654.074779][   T73]      ip6_route_input+0x59c/0xa50
[ 2654.074779][   T73]      ipv6_rcv+0x397/0x810
[ 2654.074779][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2654.074779][   T73]      process_backlog+0x101/0x620
[ 2654.074779][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2654.074779][   T73]      net_rx_action+0x495/0xbe0
[ 2654.074779][   T73]      __do_softirq+0x1b5/0x7f6
[ 2654.074779][   T73] 
[ 2654.076672][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2654.076672][   T73]      netdev_get_by_index+0x5e/0x80
[ 2654.076672][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2654.076672][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2654.076672][   T73]      ip6_route_add+0x1c/0x140
[ 2654.076672][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2654.076672][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2654.076672][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2654.076672][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2654.076672][   T73]      netlink_rcv_skb+0x130/0x360
[ 2654.076672][   T73]      netlink_unicast+0x449/0x710
[ 2654.076672][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2654.076672][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2654.076672][   T73]      ___sys_sendmsg+0xee/0x170
[ 2654.076672][   T73]      __sys_sendmsg+0xcd/0x170
[ 2654.076672][   T73]      do_syscall_64+0xc6/0x1e0
[ 2654.076672][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2654.076672][   T73] 
[ 2654.078854][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2654.078854][   T73]      netdev_get_by_index+0x5e/0x80
[ 2654.078854][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2654.078854][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2654.078854][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2654.078854][   T73]      ipv6_add_addr+0x411/0x2000
[ 2654.078854][   T73]      inet6_addr_add+0x30e/0xa40
[ 2654.078854][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2654.078854][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2654.078854][   T73]      netlink_rcv_skb+0x130/0x360
[ 2654.078854][   T73]      netlink_unicast+0x449/0x710
[ 2654.078854][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2654.078854][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2654.078854][   T73]      ___sys_sendmsg+0xee/0x170
[ 2654.078854][   T73]      __sys_sendmsg+0xcd/0x170
[ 2654.078854][   T73]      do_syscall_64+0xc6/0x1e0
[ 2654.078854][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2654.078854][   T73] 
[ 2654.081161][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2654.081161][   T73]      netdev_get_by_index+0x5e/0x80
[ 2654.081161][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2654.081161][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2654.081161][   T73]      ip6_route_add+0x1c/0x140
[ 2654.081161][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2654.081161][   T73]      addrconf_add_dev+0xe2/0x170
[ 2654.081161][   T73]      inet6_addr_add+0x12f/0xa40
[ 2654.081161][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2654.081161][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2654.081161][   T73]      netlink_rcv_skb+0x130/0x360
[ 2654.081161][   T73]      netlink_unicast+0x449/0x710
[ 2654.081161][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2654.081161][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2654.081161][   T73]      ___sys_sendmsg+0xee/0x170
[ 2654.081161][   T73]      __sys_sendmsg+0xcd/0x170
[ 2654.081161][   T73]      do_syscall_64+0xc6/0x1e0
[ 2654.081161][   T73] 
[ 2654.083320][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2654.083320][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2654.083320][   T73]      ipv6_find_idev+0x102/0x170
[ 2654.083320][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2654.083320][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2654.083320][   T73]      netlink_rcv_skb+0x130/0x360
[ 2654.083320][   T73]      netlink_unicast+0x449/0x710
[ 2654.083320][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2654.083320][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2654.083320][   T73]      ___sys_sendmsg+0xee/0x170
[ 2654.083320][   T73]      __sys_sendmsg+0xcd/0x170
[ 2654.083320][   T73]      do_syscall_64+0xc6/0x1e0
[ 2654.083320][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2654.083320][   T73] 
[ 2654.085042][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2654.085042][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2654.085042][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2654.085042][   T73]      ipv6_find_idev+0x102/0x170
[ 2654.085042][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2654.085042][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2654.085042][   T73]      netlink_rcv_skb+0x130/0x360
[ 2654.085042][   T73]      netlink_unicast+0x449/0x710
[ 2654.085042][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2654.085042][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2654.085042][   T73]      ___sys_sendmsg+0xee/0x170
[ 2654.085042][   T73]      __sys_sendmsg+0xcd/0x170
[ 2654.085042][   T73]      do_syscall_64+0xc6/0x1e0
[ 2654.085042][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2654.085042][   T73] 
[ 2654.086904][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2654.087239][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2654.087239][   T73]      netdev_get_by_index+0x5e/0x80
[ 2654.087239][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2654.087239][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2654.087239][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2654.087239][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2654.087239][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2654.087239][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2654.087239][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2654.087239][   T73]      addrconf_dad_begin+0x310/0x670
[ 2654.087239][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2654.087239][   T73]      process_one_work+0x84d/0x18a0
[ 2654.087239][   T73]      worker_thread+0x587/0xd30
[ 2654.087239][   T73]      kthread+0x28a/0x350
[ 2654.087239][   T73]      ret_from_fork+0x31/0x70
[ 2654.087239][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2654.087239][   T73] 
[ 2654.089369][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2654.089369][   T73]      netdev_get_by_index+0x5e/0x80
[ 2654.089369][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2654.089369][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2654.089369][   T73]      ip6_route_add+0x1c/0x140
[ 2654.089369][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2654.089369][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2654.089369][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2654.089369][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2654.089369][   T73]      netlink_rcv_skb+0x130/0x360
[ 2654.089369][   T73]      netlink_unicast+0x449/0x710
[ 2654.089369][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2654.089369][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2654.089369][   T73]      ___sys_sendmsg+0xee/0x170
[ 2654.089369][   T73]      __sys_sendmsg+0xcd/0x170
[ 2654.089369][   T73]      do_syscall_64+0xc6/0x1e0
[ 2654.089369][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2654.089369][   T73] 
[ 2654.091602][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2654.091602][   T73]      netdev_get_by_index+0x5e/0x80
[ 2654.091602][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2654.091602][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2654.091602][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2654.091602][   T73]      ipv6_add_addr+0x411/0x2000
[ 2654.091602][   T73]      inet6_addr_add+0x30e/0xa40
[ 2654.091602][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2654.091602][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2654.091602][   T73]      netlink_rcv_skb+0x130/0x360
[ 2654.091602][   T73]      netlink_unicast+0x449/0x710
[ 2654.091602][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2654.091602][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2654.091602][   T73]      ___sys_sendmsg+0xee/0x170
[ 2654.091602][   T73]      __sys_sendmsg+0xcd/0x170
[ 2654.091602][   T73]      do_syscall_64+0xc6/0x1e0
[ 2654.091602][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2654.091602][   T73] 
[ 2654.093850][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2654.093850][   T73]      netdev_get_by_index+0x5e/0x80
[ 2654.093850][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2654.093850][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2654.093850][   T73]      ip6_route_add+0x1c/0x140
[ 2654.093850][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2654.093850][   T73]      addrconf_add_dev+0xe2/0x170
[ 2654.093850][   T73]      inet6_addr_add+0x12f/0xa40
[ 2654.093850][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2654.093850][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2654.093850][   T73]      netlink_rcv_skb+0x130/0x360
[ 2654.093850][   T73]      netlink_unicast+0x449/0x710
[ 2654.093850][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2654.093850][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2654.093850][   T73]      ___sys_sendmsg+0xee/0x170
[ 2654.093850][   T73]      __sys_sendmsg+0xcd/0x170
[ 2654.093850][   T73]      do_syscall_64+0xc6/0x1e0
[ 2654.093850][   T73] 
[ 2654.096056][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2654.096056][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2654.096056][   T73]      ipv6_find_idev+0x102/0x170
[ 2654.096056][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2654.096056][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2654.096056][   T73]      netlink_rcv_skb+0x130/0x360
[ 2654.096056][   T73]      netlink_unicast+0x449/0x710
[ 2654.096056][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2654.096056][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2654.096056][   T73]      ___sys_sendmsg+0xee/0x170
[ 2654.096056][   T73]      __sys_sendmsg+0xcd/0x170
[ 2654.096056][   T73]      do_syscall_64+0xc6/0x1e0
[ 2654.096056][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2654.096056][   T73] 
[ 2654.097791][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2654.097791][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2654.097791][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2654.097791][   T73]      ipv6_find_idev+0x102/0x170
[ 2654.097791][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2654.097791][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2654.097791][   T73]      netlink_rcv_skb+0x130/0x360
[ 2654.097791][   T73]      netlink_unicast+0x449/0x710
[ 2654.097791][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2654.097791][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2654.097791][   T73]      ___sys_sendmsg+0xee/0x170
[ 2654.097791][   T73]      __sys_sendmsg+0xcd/0x170
[ 2654.097791][   T73]      do_syscall_64+0xc6/0x1e0
[ 2654.097791][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2654.097791][   T73] 
[ 2664.335810][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2664.336237][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2664.336237][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2664.336237][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2664.336237][   T73]      fib6_nh_init+0xa22/0x1580
[ 2664.336237][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2664.336237][   T73]      ip6_route_add+0x1c/0x140
[ 2664.336237][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2664.336237][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2664.336237][   T73]      netlink_rcv_skb+0x130/0x360
[ 2664.336237][   T73]      netlink_unicast+0x449/0x710
[ 2664.336237][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2664.336237][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2664.336237][   T73]      ___sys_sendmsg+0xee/0x170
[ 2664.336237][   T73]      __sys_sendmsg+0xcd/0x170
[ 2664.336237][   T73]      do_syscall_64+0xc6/0x1e0
[ 2664.336237][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2664.336237][   T73] 
[ 2664.338139][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2664.338139][   T73]      dst_init+0x84/0x4a0
[ 2664.338139][   T73]      dst_alloc+0x97/0x150
[ 2664.338139][   T73]      ip6_dst_alloc+0x23/0x90
[ 2664.338139][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2664.338139][   T73]      ip6_pol_route+0x56f/0x840
[ 2664.338139][   T73]      fib6_rule_lookup+0x456/0x630
[ 2664.338139][   T73]      ip6_route_input+0x59c/0xa50
[ 2664.338139][   T73]      ipv6_rcv+0x397/0x810
[ 2664.338139][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2664.338139][   T73]      process_backlog+0x101/0x620
[ 2664.338139][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2664.338139][   T73]      net_rx_action+0x495/0xbe0
[ 2664.338139][   T73]      __do_softirq+0x1b5/0x7f6
[ 2664.338139][   T73] 
[ 2664.339776][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2664.339776][   T73]      netdev_get_by_index+0x5e/0x80
[ 2664.339776][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2664.339776][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2664.339776][   T73]      ip6_route_add+0x1c/0x140
[ 2664.339776][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2664.339776][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2664.339776][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2664.339776][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2664.339776][   T73]      netlink_rcv_skb+0x130/0x360
[ 2664.339776][   T73]      netlink_unicast+0x449/0x710
[ 2664.339776][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2664.339776][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2664.339776][   T73]      ___sys_sendmsg+0xee/0x170
[ 2664.339776][   T73]      __sys_sendmsg+0xcd/0x170
[ 2664.339776][   T73]      do_syscall_64+0xc6/0x1e0
[ 2664.339776][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2664.339776][   T73] 
[ 2664.341769][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2664.341769][   T73]      netdev_get_by_index+0x5e/0x80
[ 2664.341769][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2664.341769][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2664.341769][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2664.341769][   T73]      ipv6_add_addr+0x411/0x2000
[ 2664.341769][   T73]      inet6_addr_add+0x30e/0xa40
[ 2664.341769][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2664.341769][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2664.341769][   T73]      netlink_rcv_skb+0x130/0x360
[ 2664.341769][   T73]      netlink_unicast+0x449/0x710
[ 2664.341769][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2664.341769][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2664.341769][   T73]      ___sys_sendmsg+0xee/0x170
[ 2664.341769][   T73]      __sys_sendmsg+0xcd/0x170
[ 2664.341769][   T73]      do_syscall_64+0xc6/0x1e0
[ 2664.341769][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2664.341769][   T73] 
[ 2664.343892][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2664.343892][   T73]      netdev_get_by_index+0x5e/0x80
[ 2664.343892][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2664.343892][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2664.343892][   T73]      ip6_route_add+0x1c/0x140
[ 2664.343892][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2664.343892][   T73]      addrconf_add_dev+0xe2/0x170
[ 2664.343892][   T73]      inet6_addr_add+0x12f/0xa40
[ 2664.343892][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2664.343892][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2664.343892][   T73]      netlink_rcv_skb+0x130/0x360
[ 2664.343892][   T73]      netlink_unicast+0x449/0x710
[ 2664.343892][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2664.343892][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2664.343892][   T73]      ___sys_sendmsg+0xee/0x170
[ 2664.343892][   T73]      __sys_sendmsg+0xcd/0x170
[ 2664.343892][   T73]      do_syscall_64+0xc6/0x1e0
[ 2664.343892][   T73] 
[ 2664.345862][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2664.345862][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2664.345862][   T73]      ipv6_find_idev+0x102/0x170
[ 2664.345862][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2664.345862][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2664.345862][   T73]      netlink_rcv_skb+0x130/0x360
[ 2664.345862][   T73]      netlink_unicast+0x449/0x710
[ 2664.345862][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2664.345862][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2664.345862][   T73]      ___sys_sendmsg+0xee/0x170
[ 2664.345862][   T73]      __sys_sendmsg+0xcd/0x170
[ 2664.345862][   T73]      do_syscall_64+0xc6/0x1e0
[ 2664.345862][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2664.345862][   T73] 
[ 2664.347399][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2664.347399][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2664.347399][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2664.347399][   T73]      ipv6_find_idev+0x102/0x170
[ 2664.347399][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2664.347399][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2664.347399][   T73]      netlink_rcv_skb+0x130/0x360
[ 2664.347399][   T73]      netlink_unicast+0x449/0x710
[ 2664.347399][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2664.347399][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2664.347399][   T73]      ___sys_sendmsg+0xee/0x170
[ 2664.347399][   T73]      __sys_sendmsg+0xcd/0x170
[ 2664.347399][   T73]      do_syscall_64+0xc6/0x1e0
[ 2664.347399][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2664.347399][   T73] 
[ 2664.349093][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2664.349417][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2664.349417][   T73]      netdev_get_by_index+0x5e/0x80
[ 2664.349417][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2664.349417][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2664.349417][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2664.349417][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2664.349417][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2664.349417][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2664.349417][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2664.349417][   T73]      addrconf_dad_begin+0x310/0x670
[ 2664.349417][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2664.349417][   T73]      process_one_work+0x84d/0x18a0
[ 2664.349417][   T73]      worker_thread+0x587/0xd30
[ 2664.349417][   T73]      kthread+0x28a/0x350
[ 2664.349417][   T73]      ret_from_fork+0x31/0x70
[ 2664.349417][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2664.349417][   T73] 
[ 2664.351350][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2664.351350][   T73]      netdev_get_by_index+0x5e/0x80
[ 2664.351350][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2664.351350][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2664.351350][   T73]      ip6_route_add+0x1c/0x140
[ 2664.351350][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2664.351350][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2664.351350][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2664.351350][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2664.351350][   T73]      netlink_rcv_skb+0x130/0x360
[ 2664.351350][   T73]      netlink_unicast+0x449/0x710
[ 2664.351350][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2664.351350][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2664.351350][   T73]      ___sys_sendmsg+0xee/0x170
[ 2664.351350][   T73]      __sys_sendmsg+0xcd/0x170
[ 2664.351350][   T73]      do_syscall_64+0xc6/0x1e0
[ 2664.351350][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2664.351350][   T73] 
[ 2664.353391][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2664.353391][   T73]      netdev_get_by_index+0x5e/0x80
[ 2664.353391][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2664.353391][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2664.353391][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2664.353391][   T73]      ipv6_add_addr+0x411/0x2000
[ 2664.353391][   T73]      inet6_addr_add+0x30e/0xa40
[ 2664.353391][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2664.353391][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2664.353391][   T73]      netlink_rcv_skb+0x130/0x360
[ 2664.353391][   T73]      netlink_unicast+0x449/0x710
[ 2664.353391][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2664.353391][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2664.353391][   T73]      ___sys_sendmsg+0xee/0x170
[ 2664.353391][   T73]      __sys_sendmsg+0xcd/0x170
[ 2664.353391][   T73]      do_syscall_64+0xc6/0x1e0
[ 2664.353391][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2664.353391][   T73] 
[ 2664.355411][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2664.355411][   T73]      netdev_get_by_index+0x5e/0x80
[ 2664.355411][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2664.355411][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2664.355411][   T73]      ip6_route_add+0x1c/0x140
[ 2664.355411][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2664.355411][   T73]      addrconf_add_dev+0xe2/0x170
[ 2664.355411][   T73]      inet6_addr_add+0x12f/0xa40
[ 2664.355411][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2664.355411][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2664.355411][   T73]      netlink_rcv_skb+0x130/0x360
[ 2664.355411][   T73]      netlink_unicast+0x449/0x710
[ 2664.355411][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2664.355411][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2664.355411][   T73]      ___sys_sendmsg+0xee/0x170
[ 2664.355411][   T73]      __sys_sendmsg+0xcd/0x170
[ 2664.355411][   T73]      do_syscall_64+0xc6/0x1e0
[ 2664.355411][   T73] 
[ 2664.357405][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2664.357405][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2664.357405][   T73]      ipv6_find_idev+0x102/0x170
[ 2664.357405][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2664.357405][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2664.357405][   T73]      netlink_rcv_skb+0x130/0x360
[ 2664.357405][   T73]      netlink_unicast+0x449/0x710
[ 2664.357405][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2664.357405][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2664.357405][   T73]      ___sys_sendmsg+0xee/0x170
[ 2664.357405][   T73]      __sys_sendmsg+0xcd/0x170
[ 2664.357405][   T73]      do_syscall_64+0xc6/0x1e0
[ 2664.357405][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2664.357405][   T73] 
[ 2664.358956][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2664.358956][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2664.358956][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2664.358956][   T73]      ipv6_find_idev+0x102/0x170
[ 2664.358956][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2664.358956][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2664.358956][   T73]      netlink_rcv_skb+0x130/0x360
[ 2664.358956][   T73]      netlink_unicast+0x449/0x710
[ 2664.358956][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2664.358956][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2664.358956][   T73]      ___sys_sendmsg+0xee/0x170
[ 2664.358956][   T73]      __sys_sendmsg+0xcd/0x170
[ 2664.358956][   T73]      do_syscall_64+0xc6/0x1e0
[ 2664.358956][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2664.358956][   T73] 
[ 2664.360659][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2664.360949][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2664.360949][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2664.360949][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2664.360949][   T73]      fib6_nh_init+0xa22/0x1580
[ 2664.360949][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2664.360949][   T73]      ip6_route_add+0x1c/0x140
[ 2664.360949][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2664.360949][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2664.360949][   T73]      netlink_rcv_skb+0x130/0x360
[ 2664.360949][   T73]      netlink_unicast+0x449/0x710
[ 2664.360949][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2664.360949][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2664.360949][   T73]      ___sys_sendmsg+0xee/0x170
[ 2664.360949][   T73]      __sys_sendmsg+0xcd/0x170
[ 2664.360949][   T73]      do_syscall_64+0xc6/0x1e0
[ 2664.360949][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2664.360949][   T73] 
[ 2664.362962][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2664.362962][   T73]      dst_init+0x84/0x4a0
[ 2664.362962][   T73]      dst_alloc+0x97/0x150
[ 2664.362962][   T73]      ip6_dst_alloc+0x23/0x90
[ 2664.362962][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2664.362962][   T73]      ip6_pol_route+0x56f/0x840
[ 2664.362962][   T73]      fib6_rule_lookup+0x456/0x630
[ 2664.362962][   T73]      ip6_route_input+0x59c/0xa50
[ 2664.362962][   T73]      ipv6_rcv+0x397/0x810
[ 2664.362962][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2664.362962][   T73]      process_backlog+0x101/0x620
[ 2664.362962][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2664.362962][   T73]      net_rx_action+0x495/0xbe0
[ 2664.362962][   T73]      __do_softirq+0x1b5/0x7f6
[ 2664.362962][   T73] 
[ 2664.364892][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2664.364892][   T73]      netdev_get_by_index+0x5e/0x80
[ 2664.364892][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2664.364892][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2664.364892][   T73]      ip6_route_add+0x1c/0x140
[ 2664.364892][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2664.364892][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2664.364892][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2664.364892][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2664.364892][   T73]      netlink_rcv_skb+0x130/0x360
[ 2664.364892][   T73]      netlink_unicast+0x449/0x710
[ 2664.364892][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2664.364892][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2664.364892][   T73]      ___sys_sendmsg+0xee/0x170
[ 2664.364892][   T73]      __sys_sendmsg+0xcd/0x170
[ 2664.364892][   T73]      do_syscall_64+0xc6/0x1e0
[ 2664.364892][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2664.364892][   T73] 
[ 2664.367079][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2664.367079][   T73]      netdev_get_by_index+0x5e/0x80
[ 2664.367079][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2664.367079][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2664.367079][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2664.367079][   T73]      ipv6_add_addr+0x411/0x2000
[ 2664.367079][   T73]      inet6_addr_add+0x30e/0xa40
[ 2664.367079][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2664.367079][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2664.367079][   T73]      netlink_rcv_skb+0x130/0x360
[ 2664.367079][   T73]      netlink_unicast+0x449/0x710
[ 2664.367079][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2664.367079][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2664.367079][   T73]      ___sys_sendmsg+0xee/0x170
[ 2664.367079][   T73]      __sys_sendmsg+0xcd/0x170
[ 2664.367079][   T73]      do_syscall_64+0xc6/0x1e0
[ 2664.367079][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2664.367079][   T73] 
[ 2664.369328][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2664.369328][   T73]      netdev_get_by_index+0x5e/0x80
[ 2664.369328][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2664.369328][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2664.369328][   T73]      ip6_route_add+0x1c/0x140
[ 2664.369328][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2664.369328][   T73]      addrconf_add_dev+0xe2/0x170
[ 2664.369328][   T73]      inet6_addr_add+0x12f/0xa40
[ 2664.369328][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2664.369328][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2664.369328][   T73]      netlink_rcv_skb+0x130/0x360
[ 2664.369328][   T73]      netlink_unicast+0x449/0x710
[ 2664.369328][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2664.369328][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2664.369328][   T73]      ___sys_sendmsg+0xee/0x170
[ 2664.369328][   T73]      __sys_sendmsg+0xcd/0x170
[ 2664.369328][   T73]      do_syscall_64+0xc6/0x1e0
[ 2664.369328][   T73] 
[ 2664.371493][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2664.371493][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2664.371493][   T73]      ipv6_find_idev+0x102/0x170
[ 2664.371493][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2664.371493][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2664.371493][   T73]      netlink_rcv_skb+0x130/0x360
[ 2664.371493][   T73]      netlink_unicast+0x449/0x710
[ 2664.371493][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2664.371493][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2664.371493][   T73]      ___sys_sendmsg+0xee/0x170
[ 2664.371493][   T73]      __sys_sendmsg+0xcd/0x170
[ 2664.371493][   T73]      do_syscall_64+0xc6/0x1e0
[ 2664.371493][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2664.371493][   T73] 
[ 2664.373290][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2664.373290][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2664.373290][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2664.373290][   T73]      ipv6_find_idev+0x102/0x170
[ 2664.373290][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2664.373290][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2664.373290][   T73]      netlink_rcv_skb+0x130/0x360
[ 2664.373290][   T73]      netlink_unicast+0x449/0x710
[ 2664.373290][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2664.373290][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2664.373290][   T73]      ___sys_sendmsg+0xee/0x170
[ 2664.373290][   T73]      __sys_sendmsg+0xcd/0x170
[ 2664.373290][   T73]      do_syscall_64+0xc6/0x1e0
[ 2664.373290][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2664.373290][   T73] 
[ 2664.375198][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2664.375529][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2664.375529][   T73]      netdev_get_by_index+0x5e/0x80
[ 2664.375529][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2664.375529][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2664.375529][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2664.375529][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2664.375529][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2664.375529][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2664.375529][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2664.375529][   T73]      addrconf_dad_begin+0x310/0x670
[ 2664.375529][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2664.375529][   T73]      process_one_work+0x84d/0x18a0
[ 2664.375529][   T73]      worker_thread+0x587/0xd30
[ 2664.375529][   T73]      kthread+0x28a/0x350
[ 2664.375529][   T73]      ret_from_fork+0x31/0x70
[ 2664.375529][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2664.375529][   T73] 
[ 2664.377642][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2664.377642][   T73]      netdev_get_by_index+0x5e/0x80
[ 2664.377642][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2664.377642][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2664.377642][   T73]      ip6_route_add+0x1c/0x140
[ 2664.377642][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2664.377642][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2664.377642][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2664.377642][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2664.377642][   T73]      netlink_rcv_skb+0x130/0x360
[ 2664.377642][   T73]      netlink_unicast+0x449/0x710
[ 2664.377642][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2664.377642][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2664.377642][   T73]      ___sys_sendmsg+0xee/0x170
[ 2664.377642][   T73]      __sys_sendmsg+0xcd/0x170
[ 2664.377642][   T73]      do_syscall_64+0xc6/0x1e0
[ 2664.377642][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2664.377642][   T73] 
[ 2664.379899][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2664.379899][   T73]      netdev_get_by_index+0x5e/0x80
[ 2664.379899][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2664.379899][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2664.379899][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2664.379899][   T73]      ipv6_add_addr+0x411/0x2000
[ 2664.379899][   T73]      inet6_addr_add+0x30e/0xa40
[ 2664.379899][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2664.379899][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2664.379899][   T73]      netlink_rcv_skb+0x130/0x360
[ 2664.379899][   T73]      netlink_unicast+0x449/0x710
[ 2664.379899][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2664.379899][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2664.379899][   T73]      ___sys_sendmsg+0xee/0x170
[ 2664.379899][   T73]      __sys_sendmsg+0xcd/0x170
[ 2664.379899][   T73]      do_syscall_64+0xc6/0x1e0
[ 2664.379899][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2664.379899][   T73] 
[ 2664.382133][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2664.382133][   T73]      netdev_get_by_index+0x5e/0x80
[ 2664.382133][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2664.382133][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2664.382133][   T73]      ip6_route_add+0x1c/0x140
[ 2664.382133][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2664.382133][   T73]      addrconf_add_dev+0xe2/0x170
[ 2664.382133][   T73]      inet6_addr_add+0x12f/0xa40
[ 2664.382133][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2664.382133][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2664.382133][   T73]      netlink_rcv_skb+0x130/0x360
[ 2664.382133][   T73]      netlink_unicast+0x449/0x710
[ 2664.382133][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2664.382133][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2664.382133][   T73]      ___sys_sendmsg+0xee/0x170
[ 2664.382133][   T73]      __sys_sendmsg+0xcd/0x170
[ 2664.382133][   T73]      do_syscall_64+0xc6/0x1e0
[ 2664.382133][   T73] 
[ 2664.384419][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2664.384419][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2664.384419][   T73]      ipv6_find_idev+0x102/0x170
[ 2664.384419][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2664.384419][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2664.384419][   T73]      netlink_rcv_skb+0x130/0x360
[ 2664.384419][   T73]      netlink_unicast+0x449/0x710
[ 2664.384419][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2664.384419][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2664.384419][   T73]      ___sys_sendmsg+0xee/0x170
[ 2664.384419][   T73]      __sys_sendmsg+0xcd/0x170
[ 2664.384419][   T73]      do_syscall_64+0xc6/0x1e0
[ 2664.384419][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2664.384419][   T73] 
[ 2664.386152][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2664.386152][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2664.386152][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2664.386152][   T73]      ipv6_find_idev+0x102/0x170
[ 2664.386152][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2664.386152][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2664.386152][   T73]      netlink_rcv_skb+0x130/0x360
[ 2664.386152][   T73]      netlink_unicast+0x449/0x710
[ 2664.386152][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2664.386152][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2664.386152][   T73]      ___sys_sendmsg+0xee/0x170
[ 2664.386152][   T73]      __sys_sendmsg+0xcd/0x170
[ 2664.386152][   T73]      do_syscall_64+0xc6/0x1e0
[ 2664.386152][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2664.386152][   T73] 
[ 2674.623821][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2674.624396][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2674.624396][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2674.624396][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2674.624396][   T73]      fib6_nh_init+0xa22/0x1580
[ 2674.624396][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2674.624396][   T73]      ip6_route_add+0x1c/0x140
[ 2674.624396][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2674.624396][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2674.624396][   T73]      netlink_rcv_skb+0x130/0x360
[ 2674.624396][   T73]      netlink_unicast+0x449/0x710
[ 2674.624396][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2674.624396][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2674.624396][   T73]      ___sys_sendmsg+0xee/0x170
[ 2674.624396][   T73]      __sys_sendmsg+0xcd/0x170
[ 2674.624396][   T73]      do_syscall_64+0xc6/0x1e0
[ 2674.624396][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2674.624396][   T73] 
[ 2674.627397][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2674.627397][   T73]      dst_init+0x84/0x4a0
[ 2674.627397][   T73]      dst_alloc+0x97/0x150
[ 2674.627397][   T73]      ip6_dst_alloc+0x23/0x90
[ 2674.627397][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2674.627397][   T73]      ip6_pol_route+0x56f/0x840
[ 2674.627397][   T73]      fib6_rule_lookup+0x456/0x630
[ 2674.627397][   T73]      ip6_route_input+0x59c/0xa50
[ 2674.627397][   T73]      ipv6_rcv+0x397/0x810
[ 2674.627397][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2674.627397][   T73]      process_backlog+0x101/0x620
[ 2674.627397][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2674.627397][   T73]      net_rx_action+0x495/0xbe0
[ 2674.627397][   T73]      __do_softirq+0x1b5/0x7f6
[ 2674.627397][   T73] 
[ 2674.629985][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2674.629985][   T73]      netdev_get_by_index+0x5e/0x80
[ 2674.629985][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2674.629985][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2674.629985][   T73]      ip6_route_add+0x1c/0x140
[ 2674.629985][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2674.629985][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2674.629985][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2674.629985][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2674.629985][   T73]      netlink_rcv_skb+0x130/0x360
[ 2674.629985][   T73]      netlink_unicast+0x449/0x710
[ 2674.629985][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2674.629985][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2674.629985][   T73]      ___sys_sendmsg+0xee/0x170
[ 2674.629985][   T73]      __sys_sendmsg+0xcd/0x170
[ 2674.629985][   T73]      do_syscall_64+0xc6/0x1e0
[ 2674.629985][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2674.629985][   T73] 
[ 2674.633146][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2674.633146][   T73]      netdev_get_by_index+0x5e/0x80
[ 2674.633146][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2674.633146][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2674.633146][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2674.633146][   T73]      ipv6_add_addr+0x411/0x2000
[ 2674.633146][   T73]      inet6_addr_add+0x30e/0xa40
[ 2674.633146][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2674.633146][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2674.633146][   T73]      netlink_rcv_skb+0x130/0x360
[ 2674.633146][   T73]      netlink_unicast+0x449/0x710
[ 2674.633146][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2674.633146][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2674.633146][   T73]      ___sys_sendmsg+0xee/0x170
[ 2674.633146][   T73]      __sys_sendmsg+0xcd/0x170
[ 2674.633146][   T73]      do_syscall_64+0xc6/0x1e0
[ 2674.633146][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2674.633146][   T73] 
[ 2674.636304][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2674.636304][   T73]      netdev_get_by_index+0x5e/0x80
[ 2674.636304][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2674.636304][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2674.636304][   T73]      ip6_route_add+0x1c/0x140
[ 2674.636304][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2674.636304][   T73]      addrconf_add_dev+0xe2/0x170
[ 2674.636304][   T73]      inet6_addr_add+0x12f/0xa40
[ 2674.636304][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2674.636304][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2674.636304][   T73]      netlink_rcv_skb+0x130/0x360
[ 2674.636304][   T73]      netlink_unicast+0x449/0x710
[ 2674.636304][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2674.636304][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2674.636304][   T73]      ___sys_sendmsg+0xee/0x170
[ 2674.636304][   T73]      __sys_sendmsg+0xcd/0x170
[ 2674.636304][   T73]      do_syscall_64+0xc6/0x1e0
[ 2674.636304][   T73] 
[ 2674.638332][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2674.638332][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2674.638332][   T73]      ipv6_find_idev+0x102/0x170
[ 2674.638332][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2674.638332][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2674.638332][   T73]      netlink_rcv_skb+0x130/0x360
[ 2674.638332][   T73]      netlink_unicast+0x449/0x710
[ 2674.638332][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2674.638332][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2674.638332][   T73]      ___sys_sendmsg+0xee/0x170
[ 2674.638332][   T73]      __sys_sendmsg+0xcd/0x170
[ 2674.638332][   T73]      do_syscall_64+0xc6/0x1e0
[ 2674.638332][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2674.638332][   T73] 
[ 2674.639866][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2674.639866][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2674.639866][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2674.639866][   T73]      ipv6_find_idev+0x102/0x170
[ 2674.639866][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2674.639866][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2674.639866][   T73]      netlink_rcv_skb+0x130/0x360
[ 2674.639866][   T73]      netlink_unicast+0x449/0x710
[ 2674.639866][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2674.639866][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2674.639866][   T73]      ___sys_sendmsg+0xee/0x170
[ 2674.639866][   T73]      __sys_sendmsg+0xcd/0x170
[ 2674.639866][   T73]      do_syscall_64+0xc6/0x1e0
[ 2674.639866][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2674.639866][   T73] 
[ 2674.641581][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2674.641873][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2674.641873][   T73]      netdev_get_by_index+0x5e/0x80
[ 2674.641873][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2674.641873][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2674.641873][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2674.641873][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2674.641873][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2674.641873][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2674.641873][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2674.641873][   T73]      addrconf_dad_begin+0x310/0x670
[ 2674.641873][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2674.641873][   T73]      process_one_work+0x84d/0x18a0
[ 2674.641873][   T73]      worker_thread+0x587/0xd30
[ 2674.641873][   T73]      kthread+0x28a/0x350
[ 2674.641873][   T73]      ret_from_fork+0x31/0x70
[ 2674.641873][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2674.641873][   T73] 
[ 2674.643793][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2674.643793][   T73]      netdev_get_by_index+0x5e/0x80
[ 2674.643793][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2674.643793][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2674.643793][   T73]      ip6_route_add+0x1c/0x140
[ 2674.643793][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2674.643793][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2674.643793][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2674.643793][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2674.643793][   T73]      netlink_rcv_skb+0x130/0x360
[ 2674.643793][   T73]      netlink_unicast+0x449/0x710
[ 2674.643793][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2674.643793][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2674.643793][   T73]      ___sys_sendmsg+0xee/0x170
[ 2674.643793][   T73]      __sys_sendmsg+0xcd/0x170
[ 2674.643793][   T73]      do_syscall_64+0xc6/0x1e0
[ 2674.643793][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2674.643793][   T73] 
[ 2674.645784][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2674.645784][   T73]      netdev_get_by_index+0x5e/0x80
[ 2674.645784][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2674.645784][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2674.645784][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2674.645784][   T73]      ipv6_add_addr+0x411/0x2000
[ 2674.645784][   T73]      inet6_addr_add+0x30e/0xa40
[ 2674.645784][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2674.645784][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2674.645784][   T73]      netlink_rcv_skb+0x130/0x360
[ 2674.645784][   T73]      netlink_unicast+0x449/0x710
[ 2674.645784][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2674.645784][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2674.645784][   T73]      ___sys_sendmsg+0xee/0x170
[ 2674.645784][   T73]      __sys_sendmsg+0xcd/0x170
[ 2674.645784][   T73]      do_syscall_64+0xc6/0x1e0
[ 2674.645784][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2674.645784][   T73] 
[ 2674.647862][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2674.647862][   T73]      netdev_get_by_index+0x5e/0x80
[ 2674.647862][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2674.647862][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2674.647862][   T73]      ip6_route_add+0x1c/0x140
[ 2674.647862][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2674.647862][   T73]      addrconf_add_dev+0xe2/0x170
[ 2674.647862][   T73]      inet6_addr_add+0x12f/0xa40
[ 2674.647862][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2674.647862][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2674.647862][   T73]      netlink_rcv_skb+0x130/0x360
[ 2674.647862][   T73]      netlink_unicast+0x449/0x710
[ 2674.647862][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2674.647862][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2674.647862][   T73]      ___sys_sendmsg+0xee/0x170
[ 2674.647862][   T73]      __sys_sendmsg+0xcd/0x170
[ 2674.647862][   T73]      do_syscall_64+0xc6/0x1e0
[ 2674.647862][   T73] 
[ 2674.650377][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2674.650377][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2674.650377][   T73]      ipv6_find_idev+0x102/0x170
[ 2674.650377][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2674.650377][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2674.650377][   T73]      netlink_rcv_skb+0x130/0x360
[ 2674.650377][   T73]      netlink_unicast+0x449/0x710
[ 2674.650377][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2674.650377][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2674.650377][   T73]      ___sys_sendmsg+0xee/0x170
[ 2674.650377][   T73]      __sys_sendmsg+0xcd/0x170
[ 2674.650377][   T73]      do_syscall_64+0xc6/0x1e0
[ 2674.650377][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2674.650377][   T73] 
[ 2674.651906][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2674.651906][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2674.651906][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2674.651906][   T73]      ipv6_find_idev+0x102/0x170
[ 2674.651906][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2674.651906][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2674.651906][   T73]      netlink_rcv_skb+0x130/0x360
[ 2674.651906][   T73]      netlink_unicast+0x449/0x710
[ 2674.651906][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2674.651906][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2674.651906][   T73]      ___sys_sendmsg+0xee/0x170
[ 2674.651906][   T73]      __sys_sendmsg+0xcd/0x170
[ 2674.651906][   T73]      do_syscall_64+0xc6/0x1e0
[ 2674.651906][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2674.651906][   T73] 
[ 2674.653580][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2674.654283][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2674.654283][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2674.654283][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2674.654283][   T73]      fib6_nh_init+0xa22/0x1580
[ 2674.654283][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2674.654283][   T73]      ip6_route_add+0x1c/0x140
[ 2674.654283][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2674.654283][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2674.654283][   T73]      netlink_rcv_skb+0x130/0x360
[ 2674.654283][   T73]      netlink_unicast+0x449/0x710
[ 2674.654283][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2674.654283][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2674.654283][   T73]      ___sys_sendmsg+0xee/0x170
[ 2674.654283][   T73]      __sys_sendmsg+0xcd/0x170
[ 2674.654283][   T73]      do_syscall_64+0xc6/0x1e0
[ 2674.654283][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2674.654283][   T73] 
[ 2674.656184][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2674.656184][   T73]      dst_init+0x84/0x4a0
[ 2674.656184][   T73]      dst_alloc+0x97/0x150
[ 2674.656184][   T73]      ip6_dst_alloc+0x23/0x90
[ 2674.656184][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2674.656184][   T73]      ip6_pol_route+0x56f/0x840
[ 2674.656184][   T73]      fib6_rule_lookup+0x456/0x630
[ 2674.656184][   T73]      ip6_route_input+0x59c/0xa50
[ 2674.656184][   T73]      ipv6_rcv+0x397/0x810
[ 2674.656184][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2674.656184][   T73]      process_backlog+0x101/0x620
[ 2674.656184][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2674.656184][   T73]      net_rx_action+0x495/0xbe0
[ 2674.656184][   T73]      __do_softirq+0x1b5/0x7f6
[ 2674.656184][   T73] 
[ 2674.657806][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2674.657806][   T73]      netdev_get_by_index+0x5e/0x80
[ 2674.657806][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2674.657806][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2674.657806][   T73]      ip6_route_add+0x1c/0x140
[ 2674.657806][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2674.657806][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2674.657806][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2674.657806][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2674.657806][   T73]      netlink_rcv_skb+0x130/0x360
[ 2674.657806][   T73]      netlink_unicast+0x449/0x710
[ 2674.657806][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2674.657806][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2674.657806][   T73]      ___sys_sendmsg+0xee/0x170
[ 2674.657806][   T73]      __sys_sendmsg+0xcd/0x170
[ 2674.657806][   T73]      do_syscall_64+0xc6/0x1e0
[ 2674.657806][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2674.657806][   T73] 
[ 2674.660041][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2674.660041][   T73]      netdev_get_by_index+0x5e/0x80
[ 2674.660041][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2674.660041][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2674.660041][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2674.660041][   T73]      ipv6_add_addr+0x411/0x2000
[ 2674.660041][   T73]      inet6_addr_add+0x30e/0xa40
[ 2674.660041][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2674.660041][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2674.660041][   T73]      netlink_rcv_skb+0x130/0x360
[ 2674.660041][   T73]      netlink_unicast+0x449/0x710
[ 2674.660041][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2674.660041][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2674.660041][   T73]      ___sys_sendmsg+0xee/0x170
[ 2674.660041][   T73]      __sys_sendmsg+0xcd/0x170
[ 2674.660041][   T73]      do_syscall_64+0xc6/0x1e0
[ 2674.660041][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2674.660041][   T73] 
[ 2674.662217][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2674.662217][   T73]      netdev_get_by_index+0x5e/0x80
[ 2674.662217][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2674.662217][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2674.662217][   T73]      ip6_route_add+0x1c/0x140
[ 2674.662217][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2674.662217][   T73]      addrconf_add_dev+0xe2/0x170
[ 2674.662217][   T73]      inet6_addr_add+0x12f/0xa40
[ 2674.662217][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2674.662217][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2674.662217][   T73]      netlink_rcv_skb+0x130/0x360
[ 2674.662217][   T73]      netlink_unicast+0x449/0x710
[ 2674.662217][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2674.662217][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2674.662217][   T73]      ___sys_sendmsg+0xee/0x170
[ 2674.662217][   T73]      __sys_sendmsg+0xcd/0x170
[ 2674.662217][   T73]      do_syscall_64+0xc6/0x1e0
[ 2674.662217][   T73] 
[ 2674.664429][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2674.664429][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2674.664429][   T73]      ipv6_find_idev+0x102/0x170
[ 2674.664429][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2674.664429][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2674.664429][   T73]      netlink_rcv_skb+0x130/0x360
[ 2674.664429][   T73]      netlink_unicast+0x449/0x710
[ 2674.664429][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2674.664429][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2674.664429][   T73]      ___sys_sendmsg+0xee/0x170
[ 2674.664429][   T73]      __sys_sendmsg+0xcd/0x170
[ 2674.664429][   T73]      do_syscall_64+0xc6/0x1e0
[ 2674.664429][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2674.664429][   T73] 
[ 2674.666155][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2674.666155][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2674.666155][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2674.666155][   T73]      ipv6_find_idev+0x102/0x170
[ 2674.666155][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2674.666155][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2674.666155][   T73]      netlink_rcv_skb+0x130/0x360
[ 2674.666155][   T73]      netlink_unicast+0x449/0x710
[ 2674.666155][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2674.666155][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2674.666155][   T73]      ___sys_sendmsg+0xee/0x170
[ 2674.666155][   T73]      __sys_sendmsg+0xcd/0x170
[ 2674.666155][   T73]      do_syscall_64+0xc6/0x1e0
[ 2674.666155][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2674.666155][   T73] 
[ 2674.668465][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2674.668798][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2674.668798][   T73]      netdev_get_by_index+0x5e/0x80
[ 2674.668798][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2674.668798][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2674.668798][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2674.668798][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2674.668798][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2674.668798][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2674.668798][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2674.668798][   T73]      addrconf_dad_begin+0x310/0x670
[ 2674.668798][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2674.668798][   T73]      process_one_work+0x84d/0x18a0
[ 2674.668798][   T73]      worker_thread+0x587/0xd30
[ 2674.668798][   T73]      kthread+0x28a/0x350
[ 2674.668798][   T73]      ret_from_fork+0x31/0x70
[ 2674.668798][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2674.668798][   T73] 
[ 2674.670885][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2674.670885][   T73]      netdev_get_by_index+0x5e/0x80
[ 2674.670885][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2674.670885][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2674.670885][   T73]      ip6_route_add+0x1c/0x140
[ 2674.670885][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2674.670885][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2674.670885][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2674.670885][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2674.670885][   T73]      netlink_rcv_skb+0x130/0x360
[ 2674.670885][   T73]      netlink_unicast+0x449/0x710
[ 2674.670885][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2674.670885][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2674.670885][   T73]      ___sys_sendmsg+0xee/0x170
[ 2674.670885][   T73]      __sys_sendmsg+0xcd/0x170
[ 2674.670885][   T73]      do_syscall_64+0xc6/0x1e0
[ 2674.670885][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2674.670885][   T73] 
[ 2674.673096][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2674.673096][   T73]      netdev_get_by_index+0x5e/0x80
[ 2674.673096][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2674.673096][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2674.673096][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2674.673096][   T73]      ipv6_add_addr+0x411/0x2000
[ 2674.673096][   T73]      inet6_addr_add+0x30e/0xa40
[ 2674.673096][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2674.673096][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2674.673096][   T73]      netlink_rcv_skb+0x130/0x360
[ 2674.673096][   T73]      netlink_unicast+0x449/0x710
[ 2674.673096][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2674.673096][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2674.673096][   T73]      ___sys_sendmsg+0xee/0x170
[ 2674.673096][   T73]      __sys_sendmsg+0xcd/0x170
[ 2674.673096][   T73]      do_syscall_64+0xc6/0x1e0
[ 2674.673096][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2674.673096][   T73] 
[ 2674.675329][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2674.675329][   T73]      netdev_get_by_index+0x5e/0x80
[ 2674.675329][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2674.675329][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2674.675329][   T73]      ip6_route_add+0x1c/0x140
[ 2674.675329][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2674.675329][   T73]      addrconf_add_dev+0xe2/0x170
[ 2674.675329][   T73]      inet6_addr_add+0x12f/0xa40
[ 2674.675329][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2674.675329][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2674.675329][   T73]      netlink_rcv_skb+0x130/0x360
[ 2674.675329][   T73]      netlink_unicast+0x449/0x710
[ 2674.675329][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2674.675329][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2674.675329][   T73]      ___sys_sendmsg+0xee/0x170
[ 2674.675329][   T73]      __sys_sendmsg+0xcd/0x170
[ 2674.675329][   T73]      do_syscall_64+0xc6/0x1e0
[ 2674.675329][   T73] 
[ 2674.677651][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2674.677651][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2674.677651][   T73]      ipv6_find_idev+0x102/0x170
[ 2674.677651][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2674.677651][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2674.677651][   T73]      netlink_rcv_skb+0x130/0x360
[ 2674.677651][   T73]      netlink_unicast+0x449/0x710
[ 2674.677651][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2674.677651][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2674.677651][   T73]      ___sys_sendmsg+0xee/0x170
[ 2674.677651][   T73]      __sys_sendmsg+0xcd/0x170
[ 2674.677651][   T73]      do_syscall_64+0xc6/0x1e0
[ 2674.677651][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2674.677651][   T73] 
[ 2674.679309][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2674.679309][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2674.679309][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2674.679309][   T73]      ipv6_find_idev+0x102/0x170
[ 2674.679309][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2674.679309][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2674.679309][   T73]      netlink_rcv_skb+0x130/0x360
[ 2674.679309][   T73]      netlink_unicast+0x449/0x710
[ 2674.679309][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2674.679309][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2674.679309][   T73]      ___sys_sendmsg+0xee/0x170
[ 2674.679309][   T73]      __sys_sendmsg+0xcd/0x170
[ 2674.679309][   T73]      do_syscall_64+0xc6/0x1e0
[ 2674.679309][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2674.679309][   T73] 
[ 2684.919730][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2684.920145][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2684.920145][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2684.920145][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2684.920145][   T73]      fib6_nh_init+0xa22/0x1580
[ 2684.920145][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2684.920145][   T73]      ip6_route_add+0x1c/0x140
[ 2684.920145][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2684.920145][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2684.920145][   T73]      netlink_rcv_skb+0x130/0x360
[ 2684.920145][   T73]      netlink_unicast+0x449/0x710
[ 2684.920145][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2684.920145][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2684.920145][   T73]      ___sys_sendmsg+0xee/0x170
[ 2684.920145][   T73]      __sys_sendmsg+0xcd/0x170
[ 2684.920145][   T73]      do_syscall_64+0xc6/0x1e0
[ 2684.920145][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2684.920145][   T73] 
[ 2684.922031][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2684.922031][   T73]      dst_init+0x84/0x4a0
[ 2684.922031][   T73]      dst_alloc+0x97/0x150
[ 2684.922031][   T73]      ip6_dst_alloc+0x23/0x90
[ 2684.922031][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2684.922031][   T73]      ip6_pol_route+0x56f/0x840
[ 2684.922031][   T73]      fib6_rule_lookup+0x456/0x630
[ 2684.922031][   T73]      ip6_route_input+0x59c/0xa50
[ 2684.922031][   T73]      ipv6_rcv+0x397/0x810
[ 2684.922031][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2684.922031][   T73]      process_backlog+0x101/0x620
[ 2684.922031][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2684.922031][   T73]      net_rx_action+0x495/0xbe0
[ 2684.922031][   T73]      __do_softirq+0x1b5/0x7f6
[ 2684.922031][   T73] 
[ 2684.923686][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2684.923686][   T73]      netdev_get_by_index+0x5e/0x80
[ 2684.923686][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2684.923686][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2684.923686][   T73]      ip6_route_add+0x1c/0x140
[ 2684.923686][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2684.923686][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2684.923686][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2684.923686][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2684.923686][   T73]      netlink_rcv_skb+0x130/0x360
[ 2684.923686][   T73]      netlink_unicast+0x449/0x710
[ 2684.923686][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2684.923686][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2684.923686][   T73]      ___sys_sendmsg+0xee/0x170
[ 2684.923686][   T73]      __sys_sendmsg+0xcd/0x170
[ 2684.923686][   T73]      do_syscall_64+0xc6/0x1e0
[ 2684.923686][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2684.923686][   T73] 
[ 2684.925689][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2684.925689][   T73]      netdev_get_by_index+0x5e/0x80
[ 2684.925689][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2684.925689][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2684.925689][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2684.925689][   T73]      ipv6_add_addr+0x411/0x2000
[ 2684.925689][   T73]      inet6_addr_add+0x30e/0xa40
[ 2684.925689][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2684.925689][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2684.925689][   T73]      netlink_rcv_skb+0x130/0x360
[ 2684.925689][   T73]      netlink_unicast+0x449/0x710
[ 2684.925689][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2684.925689][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2684.925689][   T73]      ___sys_sendmsg+0xee/0x170
[ 2684.925689][   T73]      __sys_sendmsg+0xcd/0x170
[ 2684.925689][   T73]      do_syscall_64+0xc6/0x1e0
[ 2684.925689][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2684.925689][   T73] 
[ 2684.927677][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2684.927677][   T73]      netdev_get_by_index+0x5e/0x80
[ 2684.927677][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2684.927677][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2684.927677][   T73]      ip6_route_add+0x1c/0x140
[ 2684.927677][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2684.927677][   T73]      addrconf_add_dev+0xe2/0x170
[ 2684.927677][   T73]      inet6_addr_add+0x12f/0xa40
[ 2684.927677][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2684.927677][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2684.927677][   T73]      netlink_rcv_skb+0x130/0x360
[ 2684.927677][   T73]      netlink_unicast+0x449/0x710
[ 2684.927677][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2684.927677][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2684.927677][   T73]      ___sys_sendmsg+0xee/0x170
[ 2684.927677][   T73]      __sys_sendmsg+0xcd/0x170
[ 2684.927677][   T73]      do_syscall_64+0xc6/0x1e0
[ 2684.927677][   T73] 
[ 2684.929640][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2684.929640][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2684.929640][   T73]      ipv6_find_idev+0x102/0x170
[ 2684.929640][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2684.929640][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2684.929640][   T73]      netlink_rcv_skb+0x130/0x360
[ 2684.929640][   T73]      netlink_unicast+0x449/0x710
[ 2684.929640][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2684.929640][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2684.929640][   T73]      ___sys_sendmsg+0xee/0x170
[ 2684.929640][   T73]      __sys_sendmsg+0xcd/0x170
[ 2684.929640][   T73]      do_syscall_64+0xc6/0x1e0
[ 2684.929640][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2684.929640][   T73] 
[ 2684.931184][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2684.931184][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2684.931184][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2684.931184][   T73]      ipv6_find_idev+0x102/0x170
[ 2684.931184][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2684.931184][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2684.931184][   T73]      netlink_rcv_skb+0x130/0x360
[ 2684.931184][   T73]      netlink_unicast+0x449/0x710
[ 2684.931184][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2684.931184][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2684.931184][   T73]      ___sys_sendmsg+0xee/0x170
[ 2684.931184][   T73]      __sys_sendmsg+0xcd/0x170
[ 2684.931184][   T73]      do_syscall_64+0xc6/0x1e0
[ 2684.931184][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2684.931184][   T73] 
[ 2684.932878][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2684.933167][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2684.933167][   T73]      netdev_get_by_index+0x5e/0x80
[ 2684.933167][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2684.933167][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2684.933167][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2684.933167][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2684.933167][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2684.933167][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2684.933167][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2684.933167][   T73]      addrconf_dad_begin+0x310/0x670
[ 2684.933167][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2684.933167][   T73]      process_one_work+0x84d/0x18a0
[ 2684.933167][   T73]      worker_thread+0x587/0xd30
[ 2684.933167][   T73]      kthread+0x28a/0x350
[ 2684.933167][   T73]      ret_from_fork+0x31/0x70
[ 2684.933167][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2684.933167][   T73] 
[ 2684.935084][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2684.935084][   T73]      netdev_get_by_index+0x5e/0x80
[ 2684.935084][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2684.935084][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2684.935084][   T73]      ip6_route_add+0x1c/0x140
[ 2684.935084][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2684.935084][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2684.935084][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2684.935084][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2684.935084][   T73]      netlink_rcv_skb+0x130/0x360
[ 2684.935084][   T73]      netlink_unicast+0x449/0x710
[ 2684.935084][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2684.935084][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2684.935084][   T73]      ___sys_sendmsg+0xee/0x170
[ 2684.935084][   T73]      __sys_sendmsg+0xcd/0x170
[ 2684.935084][   T73]      do_syscall_64+0xc6/0x1e0
[ 2684.935084][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2684.935084][   T73] 
[ 2684.937082][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2684.937082][   T73]      netdev_get_by_index+0x5e/0x80
[ 2684.937082][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2684.937082][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2684.937082][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2684.937082][   T73]      ipv6_add_addr+0x411/0x2000
[ 2684.937082][   T73]      inet6_addr_add+0x30e/0xa40
[ 2684.937082][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2684.937082][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2684.937082][   T73]      netlink_rcv_skb+0x130/0x360
[ 2684.937082][   T73]      netlink_unicast+0x449/0x710
[ 2684.937082][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2684.937082][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2684.937082][   T73]      ___sys_sendmsg+0xee/0x170
[ 2684.937082][   T73]      __sys_sendmsg+0xcd/0x170
[ 2684.937082][   T73]      do_syscall_64+0xc6/0x1e0
[ 2684.937082][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2684.937082][   T73] 
[ 2684.939087][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2684.939087][   T73]      netdev_get_by_index+0x5e/0x80
[ 2684.939087][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2684.939087][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2684.939087][   T73]      ip6_route_add+0x1c/0x140
[ 2684.939087][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2684.939087][   T73]      addrconf_add_dev+0xe2/0x170
[ 2684.939087][   T73]      inet6_addr_add+0x12f/0xa40
[ 2684.939087][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2684.939087][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2684.939087][   T73]      netlink_rcv_skb+0x130/0x360
[ 2684.939087][   T73]      netlink_unicast+0x449/0x710
[ 2684.939087][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2684.939087][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2684.939087][   T73]      ___sys_sendmsg+0xee/0x170
[ 2684.939087][   T73]      __sys_sendmsg+0xcd/0x170
[ 2684.939087][   T73]      do_syscall_64+0xc6/0x1e0
[ 2684.939087][   T73] 
[ 2684.941037][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2684.941037][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2684.941037][   T73]      ipv6_find_idev+0x102/0x170
[ 2684.941037][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2684.941037][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2684.941037][   T73]      netlink_rcv_skb+0x130/0x360
[ 2684.941037][   T73]      netlink_unicast+0x449/0x710
[ 2684.941037][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2684.941037][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2684.941037][   T73]      ___sys_sendmsg+0xee/0x170
[ 2684.941037][   T73]      __sys_sendmsg+0xcd/0x170
[ 2684.941037][   T73]      do_syscall_64+0xc6/0x1e0
[ 2684.941037][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2684.941037][   T73] 
[ 2684.942592][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2684.942592][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2684.942592][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2684.942592][   T73]      ipv6_find_idev+0x102/0x170
[ 2684.942592][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2684.942592][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2684.942592][   T73]      netlink_rcv_skb+0x130/0x360
[ 2684.942592][   T73]      netlink_unicast+0x449/0x710
[ 2684.942592][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2684.942592][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2684.942592][   T73]      ___sys_sendmsg+0xee/0x170
[ 2684.942592][   T73]      __sys_sendmsg+0xcd/0x170
[ 2684.942592][   T73]      do_syscall_64+0xc6/0x1e0
[ 2684.942592][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2684.942592][   T73] 
[ 2684.944268][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2684.944536][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2684.944536][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2684.944536][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2684.944536][   T73]      fib6_nh_init+0xa22/0x1580
[ 2684.944536][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2684.944536][   T73]      ip6_route_add+0x1c/0x140
[ 2684.944536][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2684.944536][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2684.944536][   T73]      netlink_rcv_skb+0x130/0x360
[ 2684.944536][   T73]      netlink_unicast+0x449/0x710
[ 2684.944536][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2684.944536][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2684.944536][   T73]      ___sys_sendmsg+0xee/0x170
[ 2684.944536][   T73]      __sys_sendmsg+0xcd/0x170
[ 2684.944536][   T73]      do_syscall_64+0xc6/0x1e0
[ 2684.944536][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2684.944536][   T73] 
[ 2684.946532][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2684.946532][   T73]      dst_init+0x84/0x4a0
[ 2684.946532][   T73]      dst_alloc+0x97/0x150
[ 2684.946532][   T73]      ip6_dst_alloc+0x23/0x90
[ 2684.946532][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2684.946532][   T73]      ip6_pol_route+0x56f/0x840
[ 2684.946532][   T73]      fib6_rule_lookup+0x456/0x630
[ 2684.946532][   T73]      ip6_route_input+0x59c/0xa50
[ 2684.946532][   T73]      ipv6_rcv+0x397/0x810
[ 2684.946532][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2684.946532][   T73]      process_backlog+0x101/0x620
[ 2684.946532][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2684.946532][   T73]      net_rx_action+0x495/0xbe0
[ 2684.946532][   T73]      __do_softirq+0x1b5/0x7f6
[ 2684.946532][   T73] 
[ 2684.948468][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2684.948468][   T73]      netdev_get_by_index+0x5e/0x80
[ 2684.948468][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2684.948468][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2684.948468][   T73]      ip6_route_add+0x1c/0x140
[ 2684.948468][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2684.948468][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2684.948468][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2684.948468][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2684.948468][   T73]      netlink_rcv_skb+0x130/0x360
[ 2684.948468][   T73]      netlink_unicast+0x449/0x710
[ 2684.948468][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2684.948468][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2684.948468][   T73]      ___sys_sendmsg+0xee/0x170
[ 2684.948468][   T73]      __sys_sendmsg+0xcd/0x170
[ 2684.948468][   T73]      do_syscall_64+0xc6/0x1e0
[ 2684.948468][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2684.948468][   T73] 
[ 2684.950625][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2684.950625][   T73]      netdev_get_by_index+0x5e/0x80
[ 2684.950625][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2684.950625][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2684.950625][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2684.950625][   T73]      ipv6_add_addr+0x411/0x2000
[ 2684.950625][   T73]      inet6_addr_add+0x30e/0xa40
[ 2684.950625][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2684.950625][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2684.950625][   T73]      netlink_rcv_skb+0x130/0x360
[ 2684.950625][   T73]      netlink_unicast+0x449/0x710
[ 2684.950625][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2684.950625][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2684.950625][   T73]      ___sys_sendmsg+0xee/0x170
[ 2684.950625][   T73]      __sys_sendmsg+0xcd/0x170
[ 2684.950625][   T73]      do_syscall_64+0xc6/0x1e0
[ 2684.950625][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2684.950625][   T73] 
[ 2684.952875][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2684.952875][   T73]      netdev_get_by_index+0x5e/0x80
[ 2684.952875][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2684.952875][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2684.952875][   T73]      ip6_route_add+0x1c/0x140
[ 2684.952875][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2684.952875][   T73]      addrconf_add_dev+0xe2/0x170
[ 2684.952875][   T73]      inet6_addr_add+0x12f/0xa40
[ 2684.952875][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2684.952875][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2684.952875][   T73]      netlink_rcv_skb+0x130/0x360
[ 2684.952875][   T73]      netlink_unicast+0x449/0x710
[ 2684.952875][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2684.952875][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2684.952875][   T73]      ___sys_sendmsg+0xee/0x170
[ 2684.952875][   T73]      __sys_sendmsg+0xcd/0x170
[ 2684.952875][   T73]      do_syscall_64+0xc6/0x1e0
[ 2684.952875][   T73] 
[ 2684.955021][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2684.955021][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2684.955021][   T73]      ipv6_find_idev+0x102/0x170
[ 2684.955021][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2684.955021][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2684.955021][   T73]      netlink_rcv_skb+0x130/0x360
[ 2684.955021][   T73]      netlink_unicast+0x449/0x710
[ 2684.955021][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2684.955021][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2684.955021][   T73]      ___sys_sendmsg+0xee/0x170
[ 2684.955021][   T73]      __sys_sendmsg+0xcd/0x170
[ 2684.955021][   T73]      do_syscall_64+0xc6/0x1e0
[ 2684.955021][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2684.955021][   T73] 
[ 2684.956818][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2684.956818][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2684.956818][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2684.956818][   T73]      ipv6_find_idev+0x102/0x170
[ 2684.956818][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2684.956818][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2684.956818][   T73]      netlink_rcv_skb+0x130/0x360
[ 2684.956818][   T73]      netlink_unicast+0x449/0x710
[ 2684.956818][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2684.956818][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2684.956818][   T73]      ___sys_sendmsg+0xee/0x170
[ 2684.956818][   T73]      __sys_sendmsg+0xcd/0x170
[ 2684.956818][   T73]      do_syscall_64+0xc6/0x1e0
[ 2684.956818][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2684.956818][   T73] 
[ 2684.958677][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2684.959016][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2684.959016][   T73]      netdev_get_by_index+0x5e/0x80
[ 2684.959016][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2684.959016][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2684.959016][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2684.959016][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2684.959016][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2684.959016][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2684.959016][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2684.959016][   T73]      addrconf_dad_begin+0x310/0x670
[ 2684.959016][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2684.959016][   T73]      process_one_work+0x84d/0x18a0
[ 2684.959016][   T73]      worker_thread+0x587/0xd30
[ 2684.959016][   T73]      kthread+0x28a/0x350
[ 2684.959016][   T73]      ret_from_fork+0x31/0x70
[ 2684.959016][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2684.959016][   T73] 
[ 2684.961117][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2684.961117][   T73]      netdev_get_by_index+0x5e/0x80
[ 2684.961117][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2684.961117][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2684.961117][   T73]      ip6_route_add+0x1c/0x140
[ 2684.961117][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2684.961117][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2684.961117][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2684.961117][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2684.961117][   T73]      netlink_rcv_skb+0x130/0x360
[ 2684.961117][   T73]      netlink_unicast+0x449/0x710
[ 2684.961117][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2684.961117][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2684.961117][   T73]      ___sys_sendmsg+0xee/0x170
[ 2684.961117][   T73]      __sys_sendmsg+0xcd/0x170
[ 2684.961117][   T73]      do_syscall_64+0xc6/0x1e0
[ 2684.961117][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2684.961117][   T73] 
[ 2684.963388][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2684.963388][   T73]      netdev_get_by_index+0x5e/0x80
[ 2684.963388][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2684.963388][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2684.963388][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2684.963388][   T73]      ipv6_add_addr+0x411/0x2000
[ 2684.963388][   T73]      inet6_addr_add+0x30e/0xa40
[ 2684.963388][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2684.963388][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2684.963388][   T73]      netlink_rcv_skb+0x130/0x360
[ 2684.963388][   T73]      netlink_unicast+0x449/0x710
[ 2684.963388][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2684.963388][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2684.963388][   T73]      ___sys_sendmsg+0xee/0x170
[ 2684.963388][   T73]      __sys_sendmsg+0xcd/0x170
[ 2684.963388][   T73]      do_syscall_64+0xc6/0x1e0
[ 2684.963388][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2684.963388][   T73] 
[ 2684.965630][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2684.965630][   T73]      netdev_get_by_index+0x5e/0x80
[ 2684.965630][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2684.965630][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2684.965630][   T73]      ip6_route_add+0x1c/0x140
[ 2684.965630][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2684.965630][   T73]      addrconf_add_dev+0xe2/0x170
[ 2684.965630][   T73]      inet6_addr_add+0x12f/0xa40
[ 2684.965630][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2684.965630][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2684.965630][   T73]      netlink_rcv_skb+0x130/0x360
[ 2684.965630][   T73]      netlink_unicast+0x449/0x710
[ 2684.965630][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2684.965630][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2684.965630][   T73]      ___sys_sendmsg+0xee/0x170
[ 2684.965630][   T73]      __sys_sendmsg+0xcd/0x170
[ 2684.965630][   T73]      do_syscall_64+0xc6/0x1e0
[ 2684.965630][   T73] 
[ 2684.967899][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2684.967899][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2684.967899][   T73]      ipv6_find_idev+0x102/0x170
[ 2684.967899][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2684.967899][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2684.967899][   T73]      netlink_rcv_skb+0x130/0x360
[ 2684.967899][   T73]      netlink_unicast+0x449/0x710
[ 2684.967899][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2684.967899][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2684.967899][   T73]      ___sys_sendmsg+0xee/0x170
[ 2684.967899][   T73]      __sys_sendmsg+0xcd/0x170
[ 2684.967899][   T73]      do_syscall_64+0xc6/0x1e0
[ 2684.967899][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2684.967899][   T73] 
[ 2684.969622][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2684.969622][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2684.969622][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2684.969622][   T73]      ipv6_find_idev+0x102/0x170
[ 2684.969622][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2684.969622][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2684.969622][   T73]      netlink_rcv_skb+0x130/0x360
[ 2684.969622][   T73]      netlink_unicast+0x449/0x710
[ 2684.969622][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2684.969622][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2684.969622][   T73]      ___sys_sendmsg+0xee/0x170
[ 2684.969622][   T73]      __sys_sendmsg+0xcd/0x170
[ 2684.969622][   T73]      do_syscall_64+0xc6/0x1e0
[ 2684.969622][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2684.969622][   T73] 
[ 2695.103778][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2695.104278][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2695.104278][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2695.104278][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2695.104278][   T73]      fib6_nh_init+0xa22/0x1580
[ 2695.104278][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2695.104278][   T73]      ip6_route_add+0x1c/0x140
[ 2695.104278][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2695.104278][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2695.104278][   T73]      netlink_rcv_skb+0x130/0x360
[ 2695.104278][   T73]      netlink_unicast+0x449/0x710
[ 2695.104278][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2695.104278][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2695.104278][   T73]      ___sys_sendmsg+0xee/0x170
[ 2695.104278][   T73]      __sys_sendmsg+0xcd/0x170
[ 2695.104278][   T73]      do_syscall_64+0xc6/0x1e0
[ 2695.104278][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2695.104278][   T73] 
[ 2695.106330][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2695.106330][   T73]      dst_init+0x84/0x4a0
[ 2695.106330][   T73]      dst_alloc+0x97/0x150
[ 2695.106330][   T73]      ip6_dst_alloc+0x23/0x90
[ 2695.106330][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2695.106330][   T73]      ip6_pol_route+0x56f/0x840
[ 2695.106330][   T73]      fib6_rule_lookup+0x456/0x630
[ 2695.106330][   T73]      ip6_route_input+0x59c/0xa50
[ 2695.106330][   T73]      ipv6_rcv+0x397/0x810
[ 2695.106330][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2695.106330][   T73]      process_backlog+0x101/0x620
[ 2695.106330][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2695.106330][   T73]      net_rx_action+0x495/0xbe0
[ 2695.106330][   T73]      __do_softirq+0x1b5/0x7f6
[ 2695.106330][   T73] 
[ 2695.107985][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2695.107985][   T73]      netdev_get_by_index+0x5e/0x80
[ 2695.107985][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2695.107985][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2695.107985][   T73]      ip6_route_add+0x1c/0x140
[ 2695.107985][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2695.107985][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2695.107985][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2695.107985][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2695.107985][   T73]      netlink_rcv_skb+0x130/0x360
[ 2695.107985][   T73]      netlink_unicast+0x449/0x710
[ 2695.107985][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2695.107985][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2695.107985][   T73]      ___sys_sendmsg+0xee/0x170
[ 2695.107985][   T73]      __sys_sendmsg+0xcd/0x170
[ 2695.107985][   T73]      do_syscall_64+0xc6/0x1e0
[ 2695.107985][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2695.107985][   T73] 
[ 2695.109994][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2695.109994][   T73]      netdev_get_by_index+0x5e/0x80
[ 2695.109994][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2695.109994][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2695.109994][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2695.109994][   T73]      ipv6_add_addr+0x411/0x2000
[ 2695.109994][   T73]      inet6_addr_add+0x30e/0xa40
[ 2695.109994][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2695.109994][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2695.109994][   T73]      netlink_rcv_skb+0x130/0x360
[ 2695.109994][   T73]      netlink_unicast+0x449/0x710
[ 2695.109994][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2695.109994][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2695.109994][   T73]      ___sys_sendmsg+0xee/0x170
[ 2695.109994][   T73]      __sys_sendmsg+0xcd/0x170
[ 2695.109994][   T73]      do_syscall_64+0xc6/0x1e0
[ 2695.109994][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2695.109994][   T73] 
[ 2695.111990][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2695.111990][   T73]      netdev_get_by_index+0x5e/0x80
[ 2695.111990][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2695.111990][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2695.111990][   T73]      ip6_route_add+0x1c/0x140
[ 2695.111990][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2695.111990][   T73]      addrconf_add_dev+0xe2/0x170
[ 2695.111990][   T73]      inet6_addr_add+0x12f/0xa40
[ 2695.111990][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2695.111990][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2695.111990][   T73]      netlink_rcv_skb+0x130/0x360
[ 2695.111990][   T73]      netlink_unicast+0x449/0x710
[ 2695.111990][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2695.111990][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2695.111990][   T73]      ___sys_sendmsg+0xee/0x170
[ 2695.111990][   T73]      __sys_sendmsg+0xcd/0x170
[ 2695.111990][   T73]      do_syscall_64+0xc6/0x1e0
[ 2695.111990][   T73] 
[ 2695.113986][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2695.113986][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2695.113986][   T73]      ipv6_find_idev+0x102/0x170
[ 2695.113986][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2695.113986][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2695.113986][   T73]      netlink_rcv_skb+0x130/0x360
[ 2695.113986][   T73]      netlink_unicast+0x449/0x710
[ 2695.113986][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2695.113986][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2695.113986][   T73]      ___sys_sendmsg+0xee/0x170
[ 2695.113986][   T73]      __sys_sendmsg+0xcd/0x170
[ 2695.113986][   T73]      do_syscall_64+0xc6/0x1e0
[ 2695.113986][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2695.113986][   T73] 
[ 2695.115548][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2695.115548][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2695.115548][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2695.115548][   T73]      ipv6_find_idev+0x102/0x170
[ 2695.115548][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2695.115548][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2695.115548][   T73]      netlink_rcv_skb+0x130/0x360
[ 2695.115548][   T73]      netlink_unicast+0x449/0x710
[ 2695.115548][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2695.115548][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2695.115548][   T73]      ___sys_sendmsg+0xee/0x170
[ 2695.115548][   T73]      __sys_sendmsg+0xcd/0x170
[ 2695.115548][   T73]      do_syscall_64+0xc6/0x1e0
[ 2695.115548][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2695.115548][   T73] 
[ 2695.117248][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2695.117530][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2695.117530][   T73]      netdev_get_by_index+0x5e/0x80
[ 2695.117530][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2695.117530][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2695.117530][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2695.117530][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2695.117530][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2695.117530][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2695.117530][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2695.117530][   T73]      addrconf_dad_begin+0x310/0x670
[ 2695.117530][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2695.117530][   T73]      process_one_work+0x84d/0x18a0
[ 2695.117530][   T73]      worker_thread+0x587/0xd30
[ 2695.117530][   T73]      kthread+0x28a/0x350
[ 2695.117530][   T73]      ret_from_fork+0x31/0x70
[ 2695.117530][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2695.117530][   T73] 
[ 2695.119444][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2695.119444][   T73]      netdev_get_by_index+0x5e/0x80
[ 2695.119444][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2695.119444][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2695.119444][   T73]      ip6_route_add+0x1c/0x140
[ 2695.119444][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2695.119444][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2695.119444][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2695.119444][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2695.119444][   T73]      netlink_rcv_skb+0x130/0x360
[ 2695.119444][   T73]      netlink_unicast+0x449/0x710
[ 2695.119444][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2695.119444][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2695.119444][   T73]      ___sys_sendmsg+0xee/0x170
[ 2695.119444][   T73]      __sys_sendmsg+0xcd/0x170
[ 2695.119444][   T73]      do_syscall_64+0xc6/0x1e0
[ 2695.119444][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2695.119444][   T73] 
[ 2695.121440][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2695.121440][   T73]      netdev_get_by_index+0x5e/0x80
[ 2695.121440][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2695.121440][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2695.121440][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2695.121440][   T73]      ipv6_add_addr+0x411/0x2000
[ 2695.121440][   T73]      inet6_addr_add+0x30e/0xa40
[ 2695.121440][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2695.121440][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2695.121440][   T73]      netlink_rcv_skb+0x130/0x360
[ 2695.121440][   T73]      netlink_unicast+0x449/0x710
[ 2695.121440][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2695.121440][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2695.121440][   T73]      ___sys_sendmsg+0xee/0x170
[ 2695.121440][   T73]      __sys_sendmsg+0xcd/0x170
[ 2695.121440][   T73]      do_syscall_64+0xc6/0x1e0
[ 2695.121440][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2695.121440][   T73] 
[ 2695.123464][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2695.123464][   T73]      netdev_get_by_index+0x5e/0x80
[ 2695.123464][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2695.123464][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2695.123464][   T73]      ip6_route_add+0x1c/0x140
[ 2695.123464][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2695.123464][   T73]      addrconf_add_dev+0xe2/0x170
[ 2695.123464][   T73]      inet6_addr_add+0x12f/0xa40
[ 2695.123464][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2695.123464][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2695.123464][   T73]      netlink_rcv_skb+0x130/0x360
[ 2695.123464][   T73]      netlink_unicast+0x449/0x710
[ 2695.123464][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2695.123464][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2695.123464][   T73]      ___sys_sendmsg+0xee/0x170
[ 2695.123464][   T73]      __sys_sendmsg+0xcd/0x170
[ 2695.123464][   T73]      do_syscall_64+0xc6/0x1e0
[ 2695.123464][   T73] 
[ 2695.125441][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2695.125441][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2695.125441][   T73]      ipv6_find_idev+0x102/0x170
[ 2695.125441][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2695.125441][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2695.125441][   T73]      netlink_rcv_skb+0x130/0x360
[ 2695.125441][   T73]      netlink_unicast+0x449/0x710
[ 2695.125441][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2695.125441][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2695.125441][   T73]      ___sys_sendmsg+0xee/0x170
[ 2695.125441][   T73]      __sys_sendmsg+0xcd/0x170
[ 2695.125441][   T73]      do_syscall_64+0xc6/0x1e0
[ 2695.125441][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2695.125441][   T73] 
[ 2695.126976][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2695.126976][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2695.126976][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2695.126976][   T73]      ipv6_find_idev+0x102/0x170
[ 2695.126976][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2695.126976][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2695.126976][   T73]      netlink_rcv_skb+0x130/0x360
[ 2695.126976][   T73]      netlink_unicast+0x449/0x710
[ 2695.126976][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2695.126976][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2695.126976][   T73]      ___sys_sendmsg+0xee/0x170
[ 2695.126976][   T73]      __sys_sendmsg+0xcd/0x170
[ 2695.126976][   T73]      do_syscall_64+0xc6/0x1e0
[ 2695.126976][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2695.126976][   T73] 
[ 2695.128657][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2695.128925][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2695.128925][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2695.128925][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2695.128925][   T73]      fib6_nh_init+0xa22/0x1580
[ 2695.128925][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2695.128925][   T73]      ip6_route_add+0x1c/0x140
[ 2695.128925][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2695.128925][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2695.128925][   T73]      netlink_rcv_skb+0x130/0x360
[ 2695.128925][   T73]      netlink_unicast+0x449/0x710
[ 2695.128925][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2695.128925][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2695.128925][   T73]      ___sys_sendmsg+0xee/0x170
[ 2695.128925][   T73]      __sys_sendmsg+0xcd/0x170
[ 2695.128925][   T73]      do_syscall_64+0xc6/0x1e0
[ 2695.128925][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2695.128925][   T73] 
[ 2695.130946][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2695.130946][   T73]      dst_init+0x84/0x4a0
[ 2695.130946][   T73]      dst_alloc+0x97/0x150
[ 2695.130946][   T73]      ip6_dst_alloc+0x23/0x90
[ 2695.130946][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2695.130946][   T73]      ip6_pol_route+0x56f/0x840
[ 2695.130946][   T73]      fib6_rule_lookup+0x456/0x630
[ 2695.130946][   T73]      ip6_route_input+0x59c/0xa50
[ 2695.130946][   T73]      ipv6_rcv+0x397/0x810
[ 2695.130946][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2695.130946][   T73]      process_backlog+0x101/0x620
[ 2695.130946][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2695.130946][   T73]      net_rx_action+0x495/0xbe0
[ 2695.130946][   T73]      __do_softirq+0x1b5/0x7f6
[ 2695.130946][   T73] 
[ 2695.132845][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2695.132845][   T73]      netdev_get_by_index+0x5e/0x80
[ 2695.132845][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2695.132845][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2695.132845][   T73]      ip6_route_add+0x1c/0x140
[ 2695.132845][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2695.132845][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2695.132845][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2695.132845][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2695.132845][   T73]      netlink_rcv_skb+0x130/0x360
[ 2695.132845][   T73]      netlink_unicast+0x449/0x710
[ 2695.132845][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2695.132845][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2695.132845][   T73]      ___sys_sendmsg+0xee/0x170
[ 2695.132845][   T73]      __sys_sendmsg+0xcd/0x170
[ 2695.132845][   T73]      do_syscall_64+0xc6/0x1e0
[ 2695.132845][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2695.132845][   T73] 
[ 2695.135016][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2695.135016][   T73]      netdev_get_by_index+0x5e/0x80
[ 2695.135016][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2695.135016][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2695.135016][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2695.135016][   T73]      ipv6_add_addr+0x411/0x2000
[ 2695.135016][   T73]      inet6_addr_add+0x30e/0xa40
[ 2695.135016][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2695.135016][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2695.135016][   T73]      netlink_rcv_skb+0x130/0x360
[ 2695.135016][   T73]      netlink_unicast+0x449/0x710
[ 2695.135016][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2695.135016][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2695.135016][   T73]      ___sys_sendmsg+0xee/0x170
[ 2695.135016][   T73]      __sys_sendmsg+0xcd/0x170
[ 2695.135016][   T73]      do_syscall_64+0xc6/0x1e0
[ 2695.135016][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2695.135016][   T73] 
[ 2695.137265][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2695.137265][   T73]      netdev_get_by_index+0x5e/0x80
[ 2695.137265][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2695.137265][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2695.137265][   T73]      ip6_route_add+0x1c/0x140
[ 2695.137265][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2695.137265][   T73]      addrconf_add_dev+0xe2/0x170
[ 2695.137265][   T73]      inet6_addr_add+0x12f/0xa40
[ 2695.137265][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2695.137265][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2695.137265][   T73]      netlink_rcv_skb+0x130/0x360
[ 2695.137265][   T73]      netlink_unicast+0x449/0x710
[ 2695.137265][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2695.137265][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2695.137265][   T73]      ___sys_sendmsg+0xee/0x170
[ 2695.137265][   T73]      __sys_sendmsg+0xcd/0x170
[ 2695.137265][   T73]      do_syscall_64+0xc6/0x1e0
[ 2695.137265][   T73] 
[ 2695.139478][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2695.139478][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2695.139478][   T73]      ipv6_find_idev+0x102/0x170
[ 2695.139478][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2695.139478][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2695.139478][   T73]      netlink_rcv_skb+0x130/0x360
[ 2695.139478][   T73]      netlink_unicast+0x449/0x710
[ 2695.139478][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2695.139478][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2695.139478][   T73]      ___sys_sendmsg+0xee/0x170
[ 2695.139478][   T73]      __sys_sendmsg+0xcd/0x170
[ 2695.139478][   T73]      do_syscall_64+0xc6/0x1e0
[ 2695.139478][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2695.139478][   T73] 
[ 2695.141191][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2695.141191][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2695.141191][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2695.141191][   T73]      ipv6_find_idev+0x102/0x170
[ 2695.141191][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2695.141191][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2695.141191][   T73]      netlink_rcv_skb+0x130/0x360
[ 2695.141191][   T73]      netlink_unicast+0x449/0x710
[ 2695.141191][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2695.141191][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2695.141191][   T73]      ___sys_sendmsg+0xee/0x170
[ 2695.141191][   T73]      __sys_sendmsg+0xcd/0x170
[ 2695.141191][   T73]      do_syscall_64+0xc6/0x1e0
[ 2695.141191][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2695.141191][   T73] 
[ 2695.143070][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2695.143406][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2695.143406][   T73]      netdev_get_by_index+0x5e/0x80
[ 2695.143406][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2695.143406][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2695.143406][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2695.143406][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2695.143406][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2695.143406][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2695.143406][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2695.143406][   T73]      addrconf_dad_begin+0x310/0x670
[ 2695.143406][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2695.143406][   T73]      process_one_work+0x84d/0x18a0
[ 2695.143406][   T73]      worker_thread+0x587/0xd30
[ 2695.143406][   T73]      kthread+0x28a/0x350
[ 2695.143406][   T73]      ret_from_fork+0x31/0x70
[ 2695.143406][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2695.143406][   T73] 
[ 2695.145506][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2695.145506][   T73]      netdev_get_by_index+0x5e/0x80
[ 2695.145506][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2695.145506][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2695.145506][   T73]      ip6_route_add+0x1c/0x140
[ 2695.145506][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2695.145506][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2695.145506][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2695.145506][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2695.145506][   T73]      netlink_rcv_skb+0x130/0x360
[ 2695.145506][   T73]      netlink_unicast+0x449/0x710
[ 2695.145506][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2695.145506][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2695.145506][   T73]      ___sys_sendmsg+0xee/0x170
[ 2695.145506][   T73]      __sys_sendmsg+0xcd/0x170
[ 2695.145506][   T73]      do_syscall_64+0xc6/0x1e0
[ 2695.145506][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2695.145506][   T73] 
[ 2695.147808][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2695.147808][   T73]      netdev_get_by_index+0x5e/0x80
[ 2695.147808][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2695.147808][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2695.147808][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2695.147808][   T73]      ipv6_add_addr+0x411/0x2000
[ 2695.147808][   T73]      inet6_addr_add+0x30e/0xa40
[ 2695.147808][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2695.147808][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2695.147808][   T73]      netlink_rcv_skb+0x130/0x360
[ 2695.147808][   T73]      netlink_unicast+0x449/0x710
[ 2695.147808][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2695.147808][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2695.147808][   T73]      ___sys_sendmsg+0xee/0x170
[ 2695.147808][   T73]      __sys_sendmsg+0xcd/0x170
[ 2695.147808][   T73]      do_syscall_64+0xc6/0x1e0
[ 2695.147808][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2695.147808][   T73] 
[ 2695.150047][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2695.150047][   T73]      netdev_get_by_index+0x5e/0x80
[ 2695.150047][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2695.150047][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2695.150047][   T73]      ip6_route_add+0x1c/0x140
[ 2695.150047][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2695.150047][   T73]      addrconf_add_dev+0xe2/0x170
[ 2695.150047][   T73]      inet6_addr_add+0x12f/0xa40
[ 2695.150047][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2695.150047][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2695.150047][   T73]      netlink_rcv_skb+0x130/0x360
[ 2695.150047][   T73]      netlink_unicast+0x449/0x710
[ 2695.150047][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2695.150047][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2695.150047][   T73]      ___sys_sendmsg+0xee/0x170
[ 2695.150047][   T73]      __sys_sendmsg+0xcd/0x170
[ 2695.150047][   T73]      do_syscall_64+0xc6/0x1e0
[ 2695.150047][   T73] 
[ 2695.152257][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2695.152257][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2695.152257][   T73]      ipv6_find_idev+0x102/0x170
[ 2695.152257][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2695.152257][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2695.152257][   T73]      netlink_rcv_skb+0x130/0x360
[ 2695.152257][   T73]      netlink_unicast+0x449/0x710
[ 2695.152257][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2695.152257][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2695.152257][   T73]      ___sys_sendmsg+0xee/0x170
[ 2695.152257][   T73]      __sys_sendmsg+0xcd/0x170
[ 2695.152257][   T73]      do_syscall_64+0xc6/0x1e0
[ 2695.152257][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2695.152257][   T73] 
[ 2695.153973][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2695.153973][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2695.153973][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2695.153973][   T73]      ipv6_find_idev+0x102/0x170
[ 2695.153973][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2695.153973][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2695.153973][   T73]      netlink_rcv_skb+0x130/0x360
[ 2695.153973][   T73]      netlink_unicast+0x449/0x710
[ 2695.153973][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2695.153973][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2695.153973][   T73]      ___sys_sendmsg+0xee/0x170
[ 2695.153973][   T73]      __sys_sendmsg+0xcd/0x170
[ 2695.153973][   T73]      do_syscall_64+0xc6/0x1e0
[ 2695.153973][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2695.153973][   T73] 
[ 2705.391825][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2705.392262][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2705.392262][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2705.392262][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2705.392262][   T73]      fib6_nh_init+0xa22/0x1580
[ 2705.392262][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2705.392262][   T73]      ip6_route_add+0x1c/0x140
[ 2705.392262][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2705.392262][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2705.392262][   T73]      netlink_rcv_skb+0x130/0x360
[ 2705.392262][   T73]      netlink_unicast+0x449/0x710
[ 2705.392262][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2705.392262][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2705.392262][   T73]      ___sys_sendmsg+0xee/0x170
[ 2705.392262][   T73]      __sys_sendmsg+0xcd/0x170
[ 2705.392262][   T73]      do_syscall_64+0xc6/0x1e0
[ 2705.392262][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2705.392262][   T73] 
[ 2705.394150][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2705.394150][   T73]      dst_init+0x84/0x4a0
[ 2705.394150][   T73]      dst_alloc+0x97/0x150
[ 2705.394150][   T73]      ip6_dst_alloc+0x23/0x90
[ 2705.394150][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2705.394150][   T73]      ip6_pol_route+0x56f/0x840
[ 2705.394150][   T73]      fib6_rule_lookup+0x456/0x630
[ 2705.394150][   T73]      ip6_route_input+0x59c/0xa50
[ 2705.394150][   T73]      ipv6_rcv+0x397/0x810
[ 2705.394150][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2705.394150][   T73]      process_backlog+0x101/0x620
[ 2705.394150][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2705.394150][   T73]      net_rx_action+0x495/0xbe0
[ 2705.394150][   T73]      __do_softirq+0x1b5/0x7f6
[ 2705.394150][   T73] 
[ 2705.395783][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2705.395783][   T73]      netdev_get_by_index+0x5e/0x80
[ 2705.395783][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2705.395783][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2705.395783][   T73]      ip6_route_add+0x1c/0x140
[ 2705.395783][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2705.395783][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2705.395783][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2705.395783][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2705.395783][   T73]      netlink_rcv_skb+0x130/0x360
[ 2705.395783][   T73]      netlink_unicast+0x449/0x710
[ 2705.395783][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2705.395783][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2705.395783][   T73]      ___sys_sendmsg+0xee/0x170
[ 2705.395783][   T73]      __sys_sendmsg+0xcd/0x170
[ 2705.395783][   T73]      do_syscall_64+0xc6/0x1e0
[ 2705.395783][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2705.395783][   T73] 
[ 2705.397777][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2705.397777][   T73]      netdev_get_by_index+0x5e/0x80
[ 2705.397777][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2705.397777][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2705.397777][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2705.397777][   T73]      ipv6_add_addr+0x411/0x2000
[ 2705.397777][   T73]      inet6_addr_add+0x30e/0xa40
[ 2705.397777][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2705.397777][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2705.397777][   T73]      netlink_rcv_skb+0x130/0x360
[ 2705.397777][   T73]      netlink_unicast+0x449/0x710
[ 2705.397777][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2705.397777][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2705.397777][   T73]      ___sys_sendmsg+0xee/0x170
[ 2705.397777][   T73]      __sys_sendmsg+0xcd/0x170
[ 2705.397777][   T73]      do_syscall_64+0xc6/0x1e0
[ 2705.397777][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2705.397777][   T73] 
[ 2705.399762][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2705.399762][   T73]      netdev_get_by_index+0x5e/0x80
[ 2705.399762][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2705.399762][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2705.399762][   T73]      ip6_route_add+0x1c/0x140
[ 2705.399762][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2705.399762][   T73]      addrconf_add_dev+0xe2/0x170
[ 2705.399762][   T73]      inet6_addr_add+0x12f/0xa40
[ 2705.399762][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2705.399762][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2705.399762][   T73]      netlink_rcv_skb+0x130/0x360
[ 2705.399762][   T73]      netlink_unicast+0x449/0x710
[ 2705.399762][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2705.399762][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2705.399762][   T73]      ___sys_sendmsg+0xee/0x170
[ 2705.399762][   T73]      __sys_sendmsg+0xcd/0x170
[ 2705.399762][   T73]      do_syscall_64+0xc6/0x1e0
[ 2705.399762][   T73] 
[ 2705.401761][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2705.401761][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2705.401761][   T73]      ipv6_find_idev+0x102/0x170
[ 2705.401761][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2705.401761][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2705.401761][   T73]      netlink_rcv_skb+0x130/0x360
[ 2705.401761][   T73]      netlink_unicast+0x449/0x710
[ 2705.401761][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2705.401761][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2705.401761][   T73]      ___sys_sendmsg+0xee/0x170
[ 2705.401761][   T73]      __sys_sendmsg+0xcd/0x170
[ 2705.401761][   T73]      do_syscall_64+0xc6/0x1e0
[ 2705.401761][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2705.401761][   T73] 
[ 2705.403304][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2705.403304][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2705.403304][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2705.403304][   T73]      ipv6_find_idev+0x102/0x170
[ 2705.403304][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2705.403304][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2705.403304][   T73]      netlink_rcv_skb+0x130/0x360
[ 2705.403304][   T73]      netlink_unicast+0x449/0x710
[ 2705.403304][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2705.403304][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2705.403304][   T73]      ___sys_sendmsg+0xee/0x170
[ 2705.403304][   T73]      __sys_sendmsg+0xcd/0x170
[ 2705.403304][   T73]      do_syscall_64+0xc6/0x1e0
[ 2705.403304][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2705.403304][   T73] 
[ 2705.404996][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2705.405277][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2705.405277][   T73]      netdev_get_by_index+0x5e/0x80
[ 2705.405277][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2705.405277][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2705.405277][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2705.405277][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2705.405277][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2705.405277][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2705.405277][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2705.405277][   T73]      addrconf_dad_begin+0x310/0x670
[ 2705.405277][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2705.405277][   T73]      process_one_work+0x84d/0x18a0
[ 2705.405277][   T73]      worker_thread+0x587/0xd30
[ 2705.405277][   T73]      kthread+0x28a/0x350
[ 2705.405277][   T73]      ret_from_fork+0x31/0x70
[ 2705.405277][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2705.405277][   T73] 
[ 2705.407178][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2705.407178][   T73]      netdev_get_by_index+0x5e/0x80
[ 2705.407178][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2705.407178][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2705.407178][   T73]      ip6_route_add+0x1c/0x140
[ 2705.407178][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2705.407178][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2705.407178][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2705.407178][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2705.407178][   T73]      netlink_rcv_skb+0x130/0x360
[ 2705.407178][   T73]      netlink_unicast+0x449/0x710
[ 2705.407178][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2705.407178][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2705.407178][   T73]      ___sys_sendmsg+0xee/0x170
[ 2705.407178][   T73]      __sys_sendmsg+0xcd/0x170
[ 2705.407178][   T73]      do_syscall_64+0xc6/0x1e0
[ 2705.407178][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2705.407178][   T73] 
[ 2705.409168][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2705.409168][   T73]      netdev_get_by_index+0x5e/0x80
[ 2705.409168][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2705.409168][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2705.409168][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2705.409168][   T73]      ipv6_add_addr+0x411/0x2000
[ 2705.409168][   T73]      inet6_addr_add+0x30e/0xa40
[ 2705.409168][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2705.409168][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2705.409168][   T73]      netlink_rcv_skb+0x130/0x360
[ 2705.409168][   T73]      netlink_unicast+0x449/0x710
[ 2705.409168][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2705.409168][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2705.409168][   T73]      ___sys_sendmsg+0xee/0x170
[ 2705.409168][   T73]      __sys_sendmsg+0xcd/0x170
[ 2705.409168][   T73]      do_syscall_64+0xc6/0x1e0
[ 2705.409168][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2705.409168][   T73] 
[ 2705.411148][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2705.411148][   T73]      netdev_get_by_index+0x5e/0x80
[ 2705.411148][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2705.411148][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2705.411148][   T73]      ip6_route_add+0x1c/0x140
[ 2705.411148][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2705.411148][   T73]      addrconf_add_dev+0xe2/0x170
[ 2705.411148][   T73]      inet6_addr_add+0x12f/0xa40
[ 2705.411148][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2705.411148][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2705.411148][   T73]      netlink_rcv_skb+0x130/0x360
[ 2705.411148][   T73]      netlink_unicast+0x449/0x710
[ 2705.411148][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2705.411148][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2705.411148][   T73]      ___sys_sendmsg+0xee/0x170
[ 2705.411148][   T73]      __sys_sendmsg+0xcd/0x170
[ 2705.411148][   T73]      do_syscall_64+0xc6/0x1e0
[ 2705.411148][   T73] 
[ 2705.413115][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2705.413115][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2705.413115][   T73]      ipv6_find_idev+0x102/0x170
[ 2705.413115][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2705.413115][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2705.413115][   T73]      netlink_rcv_skb+0x130/0x360
[ 2705.413115][   T73]      netlink_unicast+0x449/0x710
[ 2705.413115][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2705.413115][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2705.413115][   T73]      ___sys_sendmsg+0xee/0x170
[ 2705.413115][   T73]      __sys_sendmsg+0xcd/0x170
[ 2705.413115][   T73]      do_syscall_64+0xc6/0x1e0
[ 2705.413115][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2705.413115][   T73] 
[ 2705.414655][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2705.414655][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2705.414655][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2705.414655][   T73]      ipv6_find_idev+0x102/0x170
[ 2705.414655][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2705.414655][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2705.414655][   T73]      netlink_rcv_skb+0x130/0x360
[ 2705.414655][   T73]      netlink_unicast+0x449/0x710
[ 2705.414655][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2705.414655][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2705.414655][   T73]      ___sys_sendmsg+0xee/0x170
[ 2705.414655][   T73]      __sys_sendmsg+0xcd/0x170
[ 2705.414655][   T73]      do_syscall_64+0xc6/0x1e0
[ 2705.414655][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2705.414655][   T73] 
[ 2705.416511][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2705.416825][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2705.416825][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2705.416825][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2705.416825][   T73]      fib6_nh_init+0xa22/0x1580
[ 2705.416825][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2705.416825][   T73]      ip6_route_add+0x1c/0x140
[ 2705.416825][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2705.416825][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2705.416825][   T73]      netlink_rcv_skb+0x130/0x360
[ 2705.416825][   T73]      netlink_unicast+0x449/0x710
[ 2705.416825][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2705.416825][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2705.416825][   T73]      ___sys_sendmsg+0xee/0x170
[ 2705.416825][   T73]      __sys_sendmsg+0xcd/0x170
[ 2705.416825][   T73]      do_syscall_64+0xc6/0x1e0
[ 2705.416825][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2705.416825][   T73] 
[ 2705.418999][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2705.418999][   T73]      dst_init+0x84/0x4a0
[ 2705.418999][   T73]      dst_alloc+0x97/0x150
[ 2705.418999][   T73]      ip6_dst_alloc+0x23/0x90
[ 2705.418999][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2705.418999][   T73]      ip6_pol_route+0x56f/0x840
[ 2705.418999][   T73]      fib6_rule_lookup+0x456/0x630
[ 2705.418999][   T73]      ip6_route_input+0x59c/0xa50
[ 2705.418999][   T73]      ipv6_rcv+0x397/0x810
[ 2705.418999][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2705.418999][   T73]      process_backlog+0x101/0x620
[ 2705.418999][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2705.418999][   T73]      net_rx_action+0x495/0xbe0
[ 2705.418999][   T73]      __do_softirq+0x1b5/0x7f6
[ 2705.418999][   T73] 
[ 2705.421027][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2705.421027][   T73]      netdev_get_by_index+0x5e/0x80
[ 2705.421027][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2705.421027][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2705.421027][   T73]      ip6_route_add+0x1c/0x140
[ 2705.421027][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2705.421027][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2705.421027][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2705.421027][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2705.421027][   T73]      netlink_rcv_skb+0x130/0x360
[ 2705.421027][   T73]      netlink_unicast+0x449/0x710
[ 2705.421027][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2705.421027][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2705.421027][   T73]      ___sys_sendmsg+0xee/0x170
[ 2705.421027][   T73]      __sys_sendmsg+0xcd/0x170
[ 2705.421027][   T73]      do_syscall_64+0xc6/0x1e0
[ 2705.421027][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2705.421027][   T73] 
[ 2705.423313][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2705.423313][   T73]      netdev_get_by_index+0x5e/0x80
[ 2705.423313][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2705.423313][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2705.423313][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2705.423313][   T73]      ipv6_add_addr+0x411/0x2000
[ 2705.423313][   T73]      inet6_addr_add+0x30e/0xa40
[ 2705.423313][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2705.423313][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2705.423313][   T73]      netlink_rcv_skb+0x130/0x360
[ 2705.423313][   T73]      netlink_unicast+0x449/0x710
[ 2705.423313][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2705.423313][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2705.423313][   T73]      ___sys_sendmsg+0xee/0x170
[ 2705.423313][   T73]      __sys_sendmsg+0xcd/0x170
[ 2705.423313][   T73]      do_syscall_64+0xc6/0x1e0
[ 2705.423313][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2705.423313][   T73] 
[ 2705.425542][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2705.425542][   T73]      netdev_get_by_index+0x5e/0x80
[ 2705.425542][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2705.425542][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2705.425542][   T73]      ip6_route_add+0x1c/0x140
[ 2705.425542][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2705.425542][   T73]      addrconf_add_dev+0xe2/0x170
[ 2705.425542][   T73]      inet6_addr_add+0x12f/0xa40
[ 2705.425542][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2705.425542][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2705.425542][   T73]      netlink_rcv_skb+0x130/0x360
[ 2705.425542][   T73]      netlink_unicast+0x449/0x710
[ 2705.425542][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2705.425542][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2705.425542][   T73]      ___sys_sendmsg+0xee/0x170
[ 2705.425542][   T73]      __sys_sendmsg+0xcd/0x170
[ 2705.425542][   T73]      do_syscall_64+0xc6/0x1e0
[ 2705.425542][   T73] 
[ 2705.427692][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2705.427692][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2705.427692][   T73]      ipv6_find_idev+0x102/0x170
[ 2705.427692][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2705.427692][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2705.427692][   T73]      netlink_rcv_skb+0x130/0x360
[ 2705.427692][   T73]      netlink_unicast+0x449/0x710
[ 2705.427692][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2705.427692][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2705.427692][   T73]      ___sys_sendmsg+0xee/0x170
[ 2705.427692][   T73]      __sys_sendmsg+0xcd/0x170
[ 2705.427692][   T73]      do_syscall_64+0xc6/0x1e0
[ 2705.427692][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2705.427692][   T73] 
[ 2705.429462][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2705.429462][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2705.429462][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2705.429462][   T73]      ipv6_find_idev+0x102/0x170
[ 2705.429462][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2705.429462][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2705.429462][   T73]      netlink_rcv_skb+0x130/0x360
[ 2705.429462][   T73]      netlink_unicast+0x449/0x710
[ 2705.429462][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2705.429462][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2705.429462][   T73]      ___sys_sendmsg+0xee/0x170
[ 2705.429462][   T73]      __sys_sendmsg+0xcd/0x170
[ 2705.429462][   T73]      do_syscall_64+0xc6/0x1e0
[ 2705.429462][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2705.429462][   T73] 
[ 2705.431320][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2705.431650][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2705.431650][   T73]      netdev_get_by_index+0x5e/0x80
[ 2705.431650][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2705.431650][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2705.431650][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2705.431650][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2705.431650][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2705.431650][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2705.431650][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2705.431650][   T73]      addrconf_dad_begin+0x310/0x670
[ 2705.431650][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2705.431650][   T73]      process_one_work+0x84d/0x18a0
[ 2705.431650][   T73]      worker_thread+0x587/0xd30
[ 2705.431650][   T73]      kthread+0x28a/0x350
[ 2705.431650][   T73]      ret_from_fork+0x31/0x70
[ 2705.431650][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2705.431650][   T73] 
[ 2705.433740][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2705.433740][   T73]      netdev_get_by_index+0x5e/0x80
[ 2705.433740][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2705.433740][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2705.433740][   T73]      ip6_route_add+0x1c/0x140
[ 2705.433740][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2705.433740][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2705.433740][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2705.433740][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2705.433740][   T73]      netlink_rcv_skb+0x130/0x360
[ 2705.433740][   T73]      netlink_unicast+0x449/0x710
[ 2705.433740][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2705.433740][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2705.433740][   T73]      ___sys_sendmsg+0xee/0x170
[ 2705.433740][   T73]      __sys_sendmsg+0xcd/0x170
[ 2705.433740][   T73]      do_syscall_64+0xc6/0x1e0
[ 2705.433740][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2705.433740][   T73] 
[ 2705.435965][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2705.435965][   T73]      netdev_get_by_index+0x5e/0x80
[ 2705.435965][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2705.435965][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2705.435965][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2705.435965][   T73]      ipv6_add_addr+0x411/0x2000
[ 2705.435965][   T73]      inet6_addr_add+0x30e/0xa40
[ 2705.435965][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2705.435965][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2705.435965][   T73]      netlink_rcv_skb+0x130/0x360
[ 2705.435965][   T73]      netlink_unicast+0x449/0x710
[ 2705.435965][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2705.435965][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2705.435965][   T73]      ___sys_sendmsg+0xee/0x170
[ 2705.435965][   T73]      __sys_sendmsg+0xcd/0x170
[ 2705.435965][   T73]      do_syscall_64+0xc6/0x1e0
[ 2705.435965][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2705.435965][   T73] 
[ 2705.438197][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2705.438197][   T73]      netdev_get_by_index+0x5e/0x80
[ 2705.438197][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2705.438197][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2705.438197][   T73]      ip6_route_add+0x1c/0x140
[ 2705.438197][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2705.438197][   T73]      addrconf_add_dev+0xe2/0x170
[ 2705.438197][   T73]      inet6_addr_add+0x12f/0xa40
[ 2705.438197][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2705.438197][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2705.438197][   T73]      netlink_rcv_skb+0x130/0x360
[ 2705.438197][   T73]      netlink_unicast+0x449/0x710
[ 2705.438197][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2705.438197][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2705.438197][   T73]      ___sys_sendmsg+0xee/0x170
[ 2705.438197][   T73]      __sys_sendmsg+0xcd/0x170
[ 2705.438197][   T73]      do_syscall_64+0xc6/0x1e0
[ 2705.438197][   T73] 
[ 2705.440458][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2705.440458][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2705.440458][   T73]      ipv6_find_idev+0x102/0x170
[ 2705.440458][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2705.440458][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2705.440458][   T73]      netlink_rcv_skb+0x130/0x360
[ 2705.440458][   T73]      netlink_unicast+0x449/0x710
[ 2705.440458][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2705.440458][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2705.440458][   T73]      ___sys_sendmsg+0xee/0x170
[ 2705.440458][   T73]      __sys_sendmsg+0xcd/0x170
[ 2705.440458][   T73]      do_syscall_64+0xc6/0x1e0
[ 2705.440458][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2705.440458][   T73] 
[ 2705.442187][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2705.442187][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2705.442187][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2705.442187][   T73]      ipv6_find_idev+0x102/0x170
[ 2705.442187][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2705.442187][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2705.442187][   T73]      netlink_rcv_skb+0x130/0x360
[ 2705.442187][   T73]      netlink_unicast+0x449/0x710
[ 2705.442187][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2705.442187][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2705.442187][   T73]      ___sys_sendmsg+0xee/0x170
[ 2705.442187][   T73]      __sys_sendmsg+0xcd/0x170
[ 2705.442187][   T73]      do_syscall_64+0xc6/0x1e0
[ 2705.442187][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2705.442187][   T73] 
[ 2715.679831][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2715.680315][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2715.680315][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2715.680315][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2715.680315][   T73]      fib6_nh_init+0xa22/0x1580
[ 2715.680315][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2715.680315][   T73]      ip6_route_add+0x1c/0x140
[ 2715.680315][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2715.680315][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2715.680315][   T73]      netlink_rcv_skb+0x130/0x360
[ 2715.680315][   T73]      netlink_unicast+0x449/0x710
[ 2715.680315][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2715.680315][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2715.680315][   T73]      ___sys_sendmsg+0xee/0x170
[ 2715.680315][   T73]      __sys_sendmsg+0xcd/0x170
[ 2715.680315][   T73]      do_syscall_64+0xc6/0x1e0
[ 2715.680315][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2715.680315][   T73] 
[ 2715.682280][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2715.682280][   T73]      dst_init+0x84/0x4a0
[ 2715.682280][   T73]      dst_alloc+0x97/0x150
[ 2715.682280][   T73]      ip6_dst_alloc+0x23/0x90
[ 2715.682280][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2715.682280][   T73]      ip6_pol_route+0x56f/0x840
[ 2715.682280][   T73]      fib6_rule_lookup+0x456/0x630
[ 2715.682280][   T73]      ip6_route_input+0x59c/0xa50
[ 2715.682280][   T73]      ipv6_rcv+0x397/0x810
[ 2715.682280][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2715.682280][   T73]      process_backlog+0x101/0x620
[ 2715.682280][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2715.682280][   T73]      net_rx_action+0x495/0xbe0
[ 2715.682280][   T73]      __do_softirq+0x1b5/0x7f6
[ 2715.682280][   T73] 
[ 2715.683928][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2715.683928][   T73]      netdev_get_by_index+0x5e/0x80
[ 2715.683928][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2715.683928][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2715.683928][   T73]      ip6_route_add+0x1c/0x140
[ 2715.683928][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2715.683928][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2715.683928][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2715.683928][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2715.683928][   T73]      netlink_rcv_skb+0x130/0x360
[ 2715.683928][   T73]      netlink_unicast+0x449/0x710
[ 2715.683928][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2715.683928][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2715.683928][   T73]      ___sys_sendmsg+0xee/0x170
[ 2715.683928][   T73]      __sys_sendmsg+0xcd/0x170
[ 2715.683928][   T73]      do_syscall_64+0xc6/0x1e0
[ 2715.683928][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2715.683928][   T73] 
[ 2715.685957][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2715.685957][   T73]      netdev_get_by_index+0x5e/0x80
[ 2715.685957][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2715.685957][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2715.685957][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2715.685957][   T73]      ipv6_add_addr+0x411/0x2000
[ 2715.685957][   T73]      inet6_addr_add+0x30e/0xa40
[ 2715.685957][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2715.685957][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2715.685957][   T73]      netlink_rcv_skb+0x130/0x360
[ 2715.685957][   T73]      netlink_unicast+0x449/0x710
[ 2715.685957][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2715.685957][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2715.685957][   T73]      ___sys_sendmsg+0xee/0x170
[ 2715.685957][   T73]      __sys_sendmsg+0xcd/0x170
[ 2715.685957][   T73]      do_syscall_64+0xc6/0x1e0
[ 2715.685957][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2715.685957][   T73] 
[ 2715.687984][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2715.687984][   T73]      netdev_get_by_index+0x5e/0x80
[ 2715.687984][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2715.687984][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2715.687984][   T73]      ip6_route_add+0x1c/0x140
[ 2715.687984][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2715.687984][   T73]      addrconf_add_dev+0xe2/0x170
[ 2715.687984][   T73]      inet6_addr_add+0x12f/0xa40
[ 2715.687984][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2715.687984][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2715.687984][   T73]      netlink_rcv_skb+0x130/0x360
[ 2715.687984][   T73]      netlink_unicast+0x449/0x710
[ 2715.687984][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2715.687984][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2715.687984][   T73]      ___sys_sendmsg+0xee/0x170
[ 2715.687984][   T73]      __sys_sendmsg+0xcd/0x170
[ 2715.687984][   T73]      do_syscall_64+0xc6/0x1e0
[ 2715.687984][   T73] 
[ 2715.689983][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2715.689983][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2715.689983][   T73]      ipv6_find_idev+0x102/0x170
[ 2715.689983][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2715.689983][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2715.689983][   T73]      netlink_rcv_skb+0x130/0x360
[ 2715.689983][   T73]      netlink_unicast+0x449/0x710
[ 2715.689983][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2715.689983][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2715.689983][   T73]      ___sys_sendmsg+0xee/0x170
[ 2715.689983][   T73]      __sys_sendmsg+0xcd/0x170
[ 2715.689983][   T73]      do_syscall_64+0xc6/0x1e0
[ 2715.689983][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2715.689983][   T73] 
[ 2715.691513][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2715.691513][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2715.691513][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2715.691513][   T73]      ipv6_find_idev+0x102/0x170
[ 2715.691513][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2715.691513][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2715.691513][   T73]      netlink_rcv_skb+0x130/0x360
[ 2715.691513][   T73]      netlink_unicast+0x449/0x710
[ 2715.691513][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2715.691513][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2715.691513][   T73]      ___sys_sendmsg+0xee/0x170
[ 2715.691513][   T73]      __sys_sendmsg+0xcd/0x170
[ 2715.691513][   T73]      do_syscall_64+0xc6/0x1e0
[ 2715.691513][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2715.691513][   T73] 
[ 2715.693247][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2715.693532][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2715.693532][   T73]      netdev_get_by_index+0x5e/0x80
[ 2715.693532][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2715.693532][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2715.693532][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2715.693532][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2715.693532][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2715.693532][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2715.693532][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2715.693532][   T73]      addrconf_dad_begin+0x310/0x670
[ 2715.693532][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2715.693532][   T73]      process_one_work+0x84d/0x18a0
[ 2715.693532][   T73]      worker_thread+0x587/0xd30
[ 2715.693532][   T73]      kthread+0x28a/0x350
[ 2715.693532][   T73]      ret_from_fork+0x31/0x70
[ 2715.693532][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2715.693532][   T73] 
[ 2715.695426][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2715.695426][   T73]      netdev_get_by_index+0x5e/0x80
[ 2715.695426][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2715.695426][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2715.695426][   T73]      ip6_route_add+0x1c/0x140
[ 2715.695426][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2715.695426][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2715.695426][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2715.695426][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2715.695426][   T73]      netlink_rcv_skb+0x130/0x360
[ 2715.695426][   T73]      netlink_unicast+0x449/0x710
[ 2715.695426][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2715.695426][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2715.695426][   T73]      ___sys_sendmsg+0xee/0x170
[ 2715.695426][   T73]      __sys_sendmsg+0xcd/0x170
[ 2715.695426][   T73]      do_syscall_64+0xc6/0x1e0
[ 2715.695426][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2715.695426][   T73] 
[ 2715.697441][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2715.697441][   T73]      netdev_get_by_index+0x5e/0x80
[ 2715.697441][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2715.697441][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2715.697441][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2715.697441][   T73]      ipv6_add_addr+0x411/0x2000
[ 2715.697441][   T73]      inet6_addr_add+0x30e/0xa40
[ 2715.697441][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2715.697441][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2715.697441][   T73]      netlink_rcv_skb+0x130/0x360
[ 2715.697441][   T73]      netlink_unicast+0x449/0x710
[ 2715.697441][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2715.697441][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2715.697441][   T73]      ___sys_sendmsg+0xee/0x170
[ 2715.697441][   T73]      __sys_sendmsg+0xcd/0x170
[ 2715.697441][   T73]      do_syscall_64+0xc6/0x1e0
[ 2715.697441][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2715.697441][   T73] 
[ 2715.699435][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2715.699435][   T73]      netdev_get_by_index+0x5e/0x80
[ 2715.699435][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2715.699435][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2715.699435][   T73]      ip6_route_add+0x1c/0x140
[ 2715.699435][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2715.699435][   T73]      addrconf_add_dev+0xe2/0x170
[ 2715.699435][   T73]      inet6_addr_add+0x12f/0xa40
[ 2715.699435][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2715.699435][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2715.699435][   T73]      netlink_rcv_skb+0x130/0x360
[ 2715.699435][   T73]      netlink_unicast+0x449/0x710
[ 2715.699435][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2715.699435][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2715.699435][   T73]      ___sys_sendmsg+0xee/0x170
[ 2715.699435][   T73]      __sys_sendmsg+0xcd/0x170
[ 2715.699435][   T73]      do_syscall_64+0xc6/0x1e0
[ 2715.699435][   T73] 
[ 2715.701428][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2715.701428][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2715.701428][   T73]      ipv6_find_idev+0x102/0x170
[ 2715.701428][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2715.701428][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2715.701428][   T73]      netlink_rcv_skb+0x130/0x360
[ 2715.701428][   T73]      netlink_unicast+0x449/0x710
[ 2715.701428][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2715.701428][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2715.701428][   T73]      ___sys_sendmsg+0xee/0x170
[ 2715.701428][   T73]      __sys_sendmsg+0xcd/0x170
[ 2715.701428][   T73]      do_syscall_64+0xc6/0x1e0
[ 2715.701428][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2715.701428][   T73] 
[ 2715.702992][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2715.702992][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2715.702992][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2715.702992][   T73]      ipv6_find_idev+0x102/0x170
[ 2715.702992][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2715.702992][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2715.702992][   T73]      netlink_rcv_skb+0x130/0x360
[ 2715.702992][   T73]      netlink_unicast+0x449/0x710
[ 2715.702992][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2715.702992][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2715.702992][   T73]      ___sys_sendmsg+0xee/0x170
[ 2715.702992][   T73]      __sys_sendmsg+0xcd/0x170
[ 2715.702992][   T73]      do_syscall_64+0xc6/0x1e0
[ 2715.702992][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2715.702992][   T73] 
[ 2715.704692][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2715.704965][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2715.704965][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2715.704965][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2715.704965][   T73]      fib6_nh_init+0xa22/0x1580
[ 2715.704965][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2715.704965][   T73]      ip6_route_add+0x1c/0x140
[ 2715.704965][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2715.704965][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2715.704965][   T73]      netlink_rcv_skb+0x130/0x360
[ 2715.704965][   T73]      netlink_unicast+0x449/0x710
[ 2715.704965][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2715.704965][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2715.704965][   T73]      ___sys_sendmsg+0xee/0x170
[ 2715.704965][   T73]      __sys_sendmsg+0xcd/0x170
[ 2715.704965][   T73]      do_syscall_64+0xc6/0x1e0
[ 2715.704965][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2715.704965][   T73] 
[ 2715.706987][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2715.706987][   T73]      dst_init+0x84/0x4a0
[ 2715.706987][   T73]      dst_alloc+0x97/0x150
[ 2715.706987][   T73]      ip6_dst_alloc+0x23/0x90
[ 2715.706987][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2715.706987][   T73]      ip6_pol_route+0x56f/0x840
[ 2715.706987][   T73]      fib6_rule_lookup+0x456/0x630
[ 2715.706987][   T73]      ip6_route_input+0x59c/0xa50
[ 2715.706987][   T73]      ipv6_rcv+0x397/0x810
[ 2715.706987][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2715.706987][   T73]      process_backlog+0x101/0x620
[ 2715.706987][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2715.706987][   T73]      net_rx_action+0x495/0xbe0
[ 2715.706987][   T73]      __do_softirq+0x1b5/0x7f6
[ 2715.706987][   T73] 
[ 2715.708872][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2715.708872][   T73]      netdev_get_by_index+0x5e/0x80
[ 2715.708872][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2715.708872][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2715.708872][   T73]      ip6_route_add+0x1c/0x140
[ 2715.708872][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2715.708872][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2715.708872][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2715.708872][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2715.708872][   T73]      netlink_rcv_skb+0x130/0x360
[ 2715.708872][   T73]      netlink_unicast+0x449/0x710
[ 2715.708872][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2715.708872][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2715.708872][   T73]      ___sys_sendmsg+0xee/0x170
[ 2715.708872][   T73]      __sys_sendmsg+0xcd/0x170
[ 2715.708872][   T73]      do_syscall_64+0xc6/0x1e0
[ 2715.708872][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2715.708872][   T73] 
[ 2715.711053][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2715.711053][   T73]      netdev_get_by_index+0x5e/0x80
[ 2715.711053][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2715.711053][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2715.711053][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2715.711053][   T73]      ipv6_add_addr+0x411/0x2000
[ 2715.711053][   T73]      inet6_addr_add+0x30e/0xa40
[ 2715.711053][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2715.711053][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2715.711053][   T73]      netlink_rcv_skb+0x130/0x360
[ 2715.711053][   T73]      netlink_unicast+0x449/0x710
[ 2715.711053][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2715.711053][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2715.711053][   T73]      ___sys_sendmsg+0xee/0x170
[ 2715.711053][   T73]      __sys_sendmsg+0xcd/0x170
[ 2715.711053][   T73]      do_syscall_64+0xc6/0x1e0
[ 2715.711053][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2715.711053][   T73] 
[ 2715.713300][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2715.713300][   T73]      netdev_get_by_index+0x5e/0x80
[ 2715.713300][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2715.713300][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2715.713300][   T73]      ip6_route_add+0x1c/0x140
[ 2715.713300][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2715.713300][   T73]      addrconf_add_dev+0xe2/0x170
[ 2715.713300][   T73]      inet6_addr_add+0x12f/0xa40
[ 2715.713300][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2715.713300][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2715.713300][   T73]      netlink_rcv_skb+0x130/0x360
[ 2715.713300][   T73]      netlink_unicast+0x449/0x710
[ 2715.713300][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2715.713300][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2715.713300][   T73]      ___sys_sendmsg+0xee/0x170
[ 2715.713300][   T73]      __sys_sendmsg+0xcd/0x170
[ 2715.713300][   T73]      do_syscall_64+0xc6/0x1e0
[ 2715.713300][   T73] 
[ 2715.715454][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2715.715454][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2715.715454][   T73]      ipv6_find_idev+0x102/0x170
[ 2715.715454][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2715.715454][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2715.715454][   T73]      netlink_rcv_skb+0x130/0x360
[ 2715.715454][   T73]      netlink_unicast+0x449/0x710
[ 2715.715454][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2715.715454][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2715.715454][   T73]      ___sys_sendmsg+0xee/0x170
[ 2715.715454][   T73]      __sys_sendmsg+0xcd/0x170
[ 2715.715454][   T73]      do_syscall_64+0xc6/0x1e0
[ 2715.715454][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2715.715454][   T73] 
[ 2715.717184][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2715.717184][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2715.717184][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2715.717184][   T73]      ipv6_find_idev+0x102/0x170
[ 2715.717184][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2715.717184][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2715.717184][   T73]      netlink_rcv_skb+0x130/0x360
[ 2715.717184][   T73]      netlink_unicast+0x449/0x710
[ 2715.717184][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2715.717184][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2715.717184][   T73]      ___sys_sendmsg+0xee/0x170
[ 2715.717184][   T73]      __sys_sendmsg+0xcd/0x170
[ 2715.717184][   T73]      do_syscall_64+0xc6/0x1e0
[ 2715.717184][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2715.717184][   T73] 
[ 2715.719089][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2715.719428][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2715.719428][   T73]      netdev_get_by_index+0x5e/0x80
[ 2715.719428][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2715.719428][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2715.719428][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2715.719428][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2715.719428][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2715.719428][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2715.719428][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2715.719428][   T73]      addrconf_dad_begin+0x310/0x670
[ 2715.719428][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2715.719428][   T73]      process_one_work+0x84d/0x18a0
[ 2715.719428][   T73]      worker_thread+0x587/0xd30
[ 2715.719428][   T73]      kthread+0x28a/0x350
[ 2715.719428][   T73]      ret_from_fork+0x31/0x70
[ 2715.719428][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2715.719428][   T73] 
[ 2715.721527][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2715.721527][   T73]      netdev_get_by_index+0x5e/0x80
[ 2715.721527][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2715.721527][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2715.721527][   T73]      ip6_route_add+0x1c/0x140
[ 2715.721527][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2715.721527][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2715.721527][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2715.721527][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2715.721527][   T73]      netlink_rcv_skb+0x130/0x360
[ 2715.721527][   T73]      netlink_unicast+0x449/0x710
[ 2715.721527][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2715.721527][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2715.721527][   T73]      ___sys_sendmsg+0xee/0x170
[ 2715.721527][   T73]      __sys_sendmsg+0xcd/0x170
[ 2715.721527][   T73]      do_syscall_64+0xc6/0x1e0
[ 2715.721527][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2715.721527][   T73] 
[ 2715.723823][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2715.723823][   T73]      netdev_get_by_index+0x5e/0x80
[ 2715.723823][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2715.723823][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2715.723823][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2715.723823][   T73]      ipv6_add_addr+0x411/0x2000
[ 2715.723823][   T73]      inet6_addr_add+0x30e/0xa40
[ 2715.723823][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2715.723823][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2715.723823][   T73]      netlink_rcv_skb+0x130/0x360
[ 2715.723823][   T73]      netlink_unicast+0x449/0x710
[ 2715.723823][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2715.723823][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2715.723823][   T73]      ___sys_sendmsg+0xee/0x170
[ 2715.723823][   T73]      __sys_sendmsg+0xcd/0x170
[ 2715.723823][   T73]      do_syscall_64+0xc6/0x1e0
[ 2715.723823][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2715.723823][   T73] 
[ 2715.726074][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2715.726074][   T73]      netdev_get_by_index+0x5e/0x80
[ 2715.726074][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2715.726074][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2715.726074][   T73]      ip6_route_add+0x1c/0x140
[ 2715.726074][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2715.726074][   T73]      addrconf_add_dev+0xe2/0x170
[ 2715.726074][   T73]      inet6_addr_add+0x12f/0xa40
[ 2715.726074][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2715.726074][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2715.726074][   T73]      netlink_rcv_skb+0x130/0x360
[ 2715.726074][   T73]      netlink_unicast+0x449/0x710
[ 2715.726074][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2715.726074][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2715.726074][   T73]      ___sys_sendmsg+0xee/0x170
[ 2715.726074][   T73]      __sys_sendmsg+0xcd/0x170
[ 2715.726074][   T73]      do_syscall_64+0xc6/0x1e0
[ 2715.726074][   T73] 
[ 2715.728288][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2715.728288][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2715.728288][   T73]      ipv6_find_idev+0x102/0x170
[ 2715.728288][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2715.728288][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2715.728288][   T73]      netlink_rcv_skb+0x130/0x360
[ 2715.728288][   T73]      netlink_unicast+0x449/0x710
[ 2715.728288][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2715.728288][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2715.728288][   T73]      ___sys_sendmsg+0xee/0x170
[ 2715.728288][   T73]      __sys_sendmsg+0xcd/0x170
[ 2715.728288][   T73]      do_syscall_64+0xc6/0x1e0
[ 2715.728288][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2715.728288][   T73] 
[ 2715.730019][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2715.730019][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2715.730019][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2715.730019][   T73]      ipv6_find_idev+0x102/0x170
[ 2715.730019][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2715.730019][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2715.730019][   T73]      netlink_rcv_skb+0x130/0x360
[ 2715.730019][   T73]      netlink_unicast+0x449/0x710
[ 2715.730019][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2715.730019][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2715.730019][   T73]      ___sys_sendmsg+0xee/0x170
[ 2715.730019][   T73]      __sys_sendmsg+0xcd/0x170
[ 2715.730019][   T73]      do_syscall_64+0xc6/0x1e0
[ 2715.730019][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2715.730019][   T73] 
[ 2725.943759][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2725.944238][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2725.944238][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2725.944238][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2725.944238][   T73]      fib6_nh_init+0xa22/0x1580
[ 2725.944238][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2725.944238][   T73]      ip6_route_add+0x1c/0x140
[ 2725.944238][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2725.944238][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2725.944238][   T73]      netlink_rcv_skb+0x130/0x360
[ 2725.944238][   T73]      netlink_unicast+0x449/0x710
[ 2725.944238][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2725.944238][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2725.944238][   T73]      ___sys_sendmsg+0xee/0x170
[ 2725.944238][   T73]      __sys_sendmsg+0xcd/0x170
[ 2725.944238][   T73]      do_syscall_64+0xc6/0x1e0
[ 2725.944238][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2725.944238][   T73] 
[ 2725.946135][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2725.946135][   T73]      dst_init+0x84/0x4a0
[ 2725.946135][   T73]      dst_alloc+0x97/0x150
[ 2725.946135][   T73]      ip6_dst_alloc+0x23/0x90
[ 2725.946135][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2725.946135][   T73]      ip6_pol_route+0x56f/0x840
[ 2725.946135][   T73]      fib6_rule_lookup+0x456/0x630
[ 2725.946135][   T73]      ip6_route_input+0x59c/0xa50
[ 2725.946135][   T73]      ipv6_rcv+0x397/0x810
[ 2725.946135][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2725.946135][   T73]      process_backlog+0x101/0x620
[ 2725.946135][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2725.946135][   T73]      net_rx_action+0x495/0xbe0
[ 2725.946135][   T73]      __do_softirq+0x1b5/0x7f6
[ 2725.946135][   T73] 
[ 2725.947775][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2725.947775][   T73]      netdev_get_by_index+0x5e/0x80
[ 2725.947775][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2725.947775][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2725.947775][   T73]      ip6_route_add+0x1c/0x140
[ 2725.947775][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2725.947775][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2725.947775][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2725.947775][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2725.947775][   T73]      netlink_rcv_skb+0x130/0x360
[ 2725.947775][   T73]      netlink_unicast+0x449/0x710
[ 2725.947775][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2725.947775][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2725.947775][   T73]      ___sys_sendmsg+0xee/0x170
[ 2725.947775][   T73]      __sys_sendmsg+0xcd/0x170
[ 2725.947775][   T73]      do_syscall_64+0xc6/0x1e0
[ 2725.947775][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2725.947775][   T73] 
[ 2725.949768][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2725.949768][   T73]      netdev_get_by_index+0x5e/0x80
[ 2725.949768][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2725.949768][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2725.949768][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2725.949768][   T73]      ipv6_add_addr+0x411/0x2000
[ 2725.949768][   T73]      inet6_addr_add+0x30e/0xa40
[ 2725.949768][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2725.949768][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2725.949768][   T73]      netlink_rcv_skb+0x130/0x360
[ 2725.949768][   T73]      netlink_unicast+0x449/0x710
[ 2725.949768][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2725.949768][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2725.949768][   T73]      ___sys_sendmsg+0xee/0x170
[ 2725.949768][   T73]      __sys_sendmsg+0xcd/0x170
[ 2725.949768][   T73]      do_syscall_64+0xc6/0x1e0
[ 2725.949768][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2725.949768][   T73] 
[ 2725.951770][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2725.951770][   T73]      netdev_get_by_index+0x5e/0x80
[ 2725.951770][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2725.951770][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2725.951770][   T73]      ip6_route_add+0x1c/0x140
[ 2725.951770][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2725.951770][   T73]      addrconf_add_dev+0xe2/0x170
[ 2725.951770][   T73]      inet6_addr_add+0x12f/0xa40
[ 2725.951770][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2725.951770][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2725.951770][   T73]      netlink_rcv_skb+0x130/0x360
[ 2725.951770][   T73]      netlink_unicast+0x449/0x710
[ 2725.951770][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2725.951770][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2725.951770][   T73]      ___sys_sendmsg+0xee/0x170
[ 2725.951770][   T73]      __sys_sendmsg+0xcd/0x170
[ 2725.951770][   T73]      do_syscall_64+0xc6/0x1e0
[ 2725.951770][   T73] 
[ 2725.953737][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2725.953737][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2725.953737][   T73]      ipv6_find_idev+0x102/0x170
[ 2725.953737][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2725.953737][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2725.953737][   T73]      netlink_rcv_skb+0x130/0x360
[ 2725.953737][   T73]      netlink_unicast+0x449/0x710
[ 2725.953737][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2725.953737][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2725.953737][   T73]      ___sys_sendmsg+0xee/0x170
[ 2725.953737][   T73]      __sys_sendmsg+0xcd/0x170
[ 2725.953737][   T73]      do_syscall_64+0xc6/0x1e0
[ 2725.953737][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2725.953737][   T73] 
[ 2725.955276][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2725.955276][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2725.955276][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2725.955276][   T73]      ipv6_find_idev+0x102/0x170
[ 2725.955276][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2725.955276][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2725.955276][   T73]      netlink_rcv_skb+0x130/0x360
[ 2725.955276][   T73]      netlink_unicast+0x449/0x710
[ 2725.955276][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2725.955276][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2725.955276][   T73]      ___sys_sendmsg+0xee/0x170
[ 2725.955276][   T73]      __sys_sendmsg+0xcd/0x170
[ 2725.955276][   T73]      do_syscall_64+0xc6/0x1e0
[ 2725.955276][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2725.955276][   T73] 
[ 2725.956966][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2725.957248][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2725.957248][   T73]      netdev_get_by_index+0x5e/0x80
[ 2725.957248][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2725.957248][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2725.957248][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2725.957248][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2725.957248][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2725.957248][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2725.957248][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2725.957248][   T73]      addrconf_dad_begin+0x310/0x670
[ 2725.957248][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2725.957248][   T73]      process_one_work+0x84d/0x18a0
[ 2725.957248][   T73]      worker_thread+0x587/0xd30
[ 2725.957248][   T73]      kthread+0x28a/0x350
[ 2725.957248][   T73]      ret_from_fork+0x31/0x70
[ 2725.957248][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2725.957248][   T73] 
[ 2725.959170][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2725.959170][   T73]      netdev_get_by_index+0x5e/0x80
[ 2725.959170][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2725.959170][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2725.959170][   T73]      ip6_route_add+0x1c/0x140
[ 2725.959170][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2725.959170][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2725.959170][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2725.959170][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2725.959170][   T73]      netlink_rcv_skb+0x130/0x360
[ 2725.959170][   T73]      netlink_unicast+0x449/0x710
[ 2725.959170][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2725.959170][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2725.959170][   T73]      ___sys_sendmsg+0xee/0x170
[ 2725.959170][   T73]      __sys_sendmsg+0xcd/0x170
[ 2725.959170][   T73]      do_syscall_64+0xc6/0x1e0
[ 2725.959170][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2725.959170][   T73] 
[ 2725.961208][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2725.961208][   T73]      netdev_get_by_index+0x5e/0x80
[ 2725.961208][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2725.961208][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2725.961208][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2725.961208][   T73]      ipv6_add_addr+0x411/0x2000
[ 2725.961208][   T73]      inet6_addr_add+0x30e/0xa40
[ 2725.961208][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2725.961208][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2725.961208][   T73]      netlink_rcv_skb+0x130/0x360
[ 2725.961208][   T73]      netlink_unicast+0x449/0x710
[ 2725.961208][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2725.961208][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2725.961208][   T73]      ___sys_sendmsg+0xee/0x170
[ 2725.961208][   T73]      __sys_sendmsg+0xcd/0x170
[ 2725.961208][   T73]      do_syscall_64+0xc6/0x1e0
[ 2725.961208][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2725.961208][   T73] 
[ 2725.963204][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2725.963204][   T73]      netdev_get_by_index+0x5e/0x80
[ 2725.963204][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2725.963204][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2725.963204][   T73]      ip6_route_add+0x1c/0x140
[ 2725.963204][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2725.963204][   T73]      addrconf_add_dev+0xe2/0x170
[ 2725.963204][   T73]      inet6_addr_add+0x12f/0xa40
[ 2725.963204][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2725.963204][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2725.963204][   T73]      netlink_rcv_skb+0x130/0x360
[ 2725.963204][   T73]      netlink_unicast+0x449/0x710
[ 2725.963204][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2725.963204][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2725.963204][   T73]      ___sys_sendmsg+0xee/0x170
[ 2725.963204][   T73]      __sys_sendmsg+0xcd/0x170
[ 2725.963204][   T73]      do_syscall_64+0xc6/0x1e0
[ 2725.963204][   T73] 
[ 2725.965153][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2725.965153][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2725.965153][   T73]      ipv6_find_idev+0x102/0x170
[ 2725.965153][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2725.965153][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2725.965153][   T73]      netlink_rcv_skb+0x130/0x360
[ 2725.965153][   T73]      netlink_unicast+0x449/0x710
[ 2725.965153][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2725.965153][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2725.965153][   T73]      ___sys_sendmsg+0xee/0x170
[ 2725.965153][   T73]      __sys_sendmsg+0xcd/0x170
[ 2725.965153][   T73]      do_syscall_64+0xc6/0x1e0
[ 2725.965153][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2725.965153][   T73] 
[ 2725.966686][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2725.966686][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2725.966686][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2725.966686][   T73]      ipv6_find_idev+0x102/0x170
[ 2725.966686][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2725.966686][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2725.966686][   T73]      netlink_rcv_skb+0x130/0x360
[ 2725.966686][   T73]      netlink_unicast+0x449/0x710
[ 2725.966686][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2725.966686][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2725.966686][   T73]      ___sys_sendmsg+0xee/0x170
[ 2725.966686][   T73]      __sys_sendmsg+0xcd/0x170
[ 2725.966686][   T73]      do_syscall_64+0xc6/0x1e0
[ 2725.966686][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2725.966686][   T73] 
[ 2725.968350][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2725.968615][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2725.968615][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2725.968615][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2725.968615][   T73]      fib6_nh_init+0xa22/0x1580
[ 2725.968615][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2725.968615][   T73]      ip6_route_add+0x1c/0x140
[ 2725.968615][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2725.968615][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2725.968615][   T73]      netlink_rcv_skb+0x130/0x360
[ 2725.968615][   T73]      netlink_unicast+0x449/0x710
[ 2725.968615][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2725.968615][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2725.968615][   T73]      ___sys_sendmsg+0xee/0x170
[ 2725.968615][   T73]      __sys_sendmsg+0xcd/0x170
[ 2725.968615][   T73]      do_syscall_64+0xc6/0x1e0
[ 2725.968615][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2725.968615][   T73] 
[ 2725.970691][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2725.970691][   T73]      dst_init+0x84/0x4a0
[ 2725.970691][   T73]      dst_alloc+0x97/0x150
[ 2725.970691][   T73]      ip6_dst_alloc+0x23/0x90
[ 2725.970691][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2725.970691][   T73]      ip6_pol_route+0x56f/0x840
[ 2725.970691][   T73]      fib6_rule_lookup+0x456/0x630
[ 2725.970691][   T73]      ip6_route_input+0x59c/0xa50
[ 2725.970691][   T73]      ipv6_rcv+0x397/0x810
[ 2725.970691][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2725.970691][   T73]      process_backlog+0x101/0x620
[ 2725.970691][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2725.970691][   T73]      net_rx_action+0x495/0xbe0
[ 2725.970691][   T73]      __do_softirq+0x1b5/0x7f6
[ 2725.970691][   T73] 
[ 2725.972601][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2725.972601][   T73]      netdev_get_by_index+0x5e/0x80
[ 2725.972601][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2725.972601][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2725.972601][   T73]      ip6_route_add+0x1c/0x140
[ 2725.972601][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2725.972601][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2725.972601][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2725.972601][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2725.972601][   T73]      netlink_rcv_skb+0x130/0x360
[ 2725.972601][   T73]      netlink_unicast+0x449/0x710
[ 2725.972601][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2725.972601][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2725.972601][   T73]      ___sys_sendmsg+0xee/0x170
[ 2725.972601][   T73]      __sys_sendmsg+0xcd/0x170
[ 2725.972601][   T73]      do_syscall_64+0xc6/0x1e0
[ 2725.972601][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2725.972601][   T73] 
[ 2725.974850][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2725.974850][   T73]      netdev_get_by_index+0x5e/0x80
[ 2725.974850][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2725.974850][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2725.974850][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2725.974850][   T73]      ipv6_add_addr+0x411/0x2000
[ 2725.974850][   T73]      inet6_addr_add+0x30e/0xa40
[ 2725.974850][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2725.974850][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2725.974850][   T73]      netlink_rcv_skb+0x130/0x360
[ 2725.974850][   T73]      netlink_unicast+0x449/0x710
[ 2725.974850][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2725.974850][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2725.974850][   T73]      ___sys_sendmsg+0xee/0x170
[ 2725.974850][   T73]      __sys_sendmsg+0xcd/0x170
[ 2725.974850][   T73]      do_syscall_64+0xc6/0x1e0
[ 2725.974850][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2725.974850][   T73] 
[ 2725.977103][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2725.977103][   T73]      netdev_get_by_index+0x5e/0x80
[ 2725.977103][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2725.977103][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2725.977103][   T73]      ip6_route_add+0x1c/0x140
[ 2725.977103][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2725.977103][   T73]      addrconf_add_dev+0xe2/0x170
[ 2725.977103][   T73]      inet6_addr_add+0x12f/0xa40
[ 2725.977103][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2725.977103][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2725.977103][   T73]      netlink_rcv_skb+0x130/0x360
[ 2725.977103][   T73]      netlink_unicast+0x449/0x710
[ 2725.977103][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2725.977103][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2725.977103][   T73]      ___sys_sendmsg+0xee/0x170
[ 2725.977103][   T73]      __sys_sendmsg+0xcd/0x170
[ 2725.977103][   T73]      do_syscall_64+0xc6/0x1e0
[ 2725.977103][   T73] 
[ 2725.979189][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2725.979189][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2725.979189][   T73]      ipv6_find_idev+0x102/0x170
[ 2725.979189][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2725.979189][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2725.979189][   T73]      netlink_rcv_skb+0x130/0x360
[ 2725.979189][   T73]      netlink_unicast+0x449/0x710
[ 2725.979189][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2725.979189][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2725.979189][   T73]      ___sys_sendmsg+0xee/0x170
[ 2725.979189][   T73]      __sys_sendmsg+0xcd/0x170
[ 2725.979189][   T73]      do_syscall_64+0xc6/0x1e0
[ 2725.979189][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2725.979189][   T73] 
[ 2725.980965][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2725.980965][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2725.980965][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2725.980965][   T73]      ipv6_find_idev+0x102/0x170
[ 2725.980965][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2725.980965][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2725.980965][   T73]      netlink_rcv_skb+0x130/0x360
[ 2725.980965][   T73]      netlink_unicast+0x449/0x710
[ 2725.980965][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2725.980965][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2725.980965][   T73]      ___sys_sendmsg+0xee/0x170
[ 2725.980965][   T73]      __sys_sendmsg+0xcd/0x170
[ 2725.980965][   T73]      do_syscall_64+0xc6/0x1e0
[ 2725.980965][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2725.980965][   T73] 
[ 2725.982882][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2725.983168][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2725.983168][   T73]      netdev_get_by_index+0x5e/0x80
[ 2725.983168][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2725.983168][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2725.983168][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2725.983168][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2725.983168][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2725.983168][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2725.983168][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2725.983168][   T73]      addrconf_dad_begin+0x310/0x670
[ 2725.983168][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2725.983168][   T73]      process_one_work+0x84d/0x18a0
[ 2725.983168][   T73]      worker_thread+0x587/0xd30
[ 2725.983168][   T73]      kthread+0x28a/0x350
[ 2725.983168][   T73]      ret_from_fork+0x31/0x70
[ 2725.983168][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2725.983168][   T73] 
[ 2725.985312][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2725.985312][   T73]      netdev_get_by_index+0x5e/0x80
[ 2725.985312][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2725.985312][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2725.985312][   T73]      ip6_route_add+0x1c/0x140
[ 2725.985312][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2725.985312][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2725.985312][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2725.985312][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2725.985312][   T73]      netlink_rcv_skb+0x130/0x360
[ 2725.985312][   T73]      netlink_unicast+0x449/0x710
[ 2725.985312][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2725.985312][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2725.985312][   T73]      ___sys_sendmsg+0xee/0x170
[ 2725.985312][   T73]      __sys_sendmsg+0xcd/0x170
[ 2725.985312][   T73]      do_syscall_64+0xc6/0x1e0
[ 2725.985312][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2725.985312][   T73] 
[ 2725.987474][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2725.987474][   T73]      netdev_get_by_index+0x5e/0x80
[ 2725.987474][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2725.987474][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2725.987474][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2725.987474][   T73]      ipv6_add_addr+0x411/0x2000
[ 2725.987474][   T73]      inet6_addr_add+0x30e/0xa40
[ 2725.987474][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2725.987474][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2725.987474][   T73]      netlink_rcv_skb+0x130/0x360
[ 2725.987474][   T73]      netlink_unicast+0x449/0x710
[ 2725.987474][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2725.987474][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2725.987474][   T73]      ___sys_sendmsg+0xee/0x170
[ 2725.987474][   T73]      __sys_sendmsg+0xcd/0x170
[ 2725.987474][   T73]      do_syscall_64+0xc6/0x1e0
[ 2725.987474][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2725.987474][   T73] 
[ 2725.989702][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2725.989702][   T73]      netdev_get_by_index+0x5e/0x80
[ 2725.989702][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2725.989702][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2725.989702][   T73]      ip6_route_add+0x1c/0x140
[ 2725.989702][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2725.989702][   T73]      addrconf_add_dev+0xe2/0x170
[ 2725.989702][   T73]      inet6_addr_add+0x12f/0xa40
[ 2725.989702][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2725.989702][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2725.989702][   T73]      netlink_rcv_skb+0x130/0x360
[ 2725.989702][   T73]      netlink_unicast+0x449/0x710
[ 2725.989702][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2725.989702][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2725.989702][   T73]      ___sys_sendmsg+0xee/0x170
[ 2725.989702][   T73]      __sys_sendmsg+0xcd/0x170
[ 2725.989702][   T73]      do_syscall_64+0xc6/0x1e0
[ 2725.989702][   T73] 
[ 2725.991968][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2725.991968][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2725.991968][   T73]      ipv6_find_idev+0x102/0x170
[ 2725.991968][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2725.991968][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2725.991968][   T73]      netlink_rcv_skb+0x130/0x360
[ 2725.991968][   T73]      netlink_unicast+0x449/0x710
[ 2725.991968][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2725.991968][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2725.991968][   T73]      ___sys_sendmsg+0xee/0x170
[ 2725.991968][   T73]      __sys_sendmsg+0xcd/0x170
[ 2725.991968][   T73]      do_syscall_64+0xc6/0x1e0
[ 2725.991968][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2725.991968][   T73] 
[ 2725.993693][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2725.993693][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2725.993693][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2725.993693][   T73]      ipv6_find_idev+0x102/0x170
[ 2725.993693][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2725.993693][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2725.993693][   T73]      netlink_rcv_skb+0x130/0x360
[ 2725.993693][   T73]      netlink_unicast+0x449/0x710
[ 2725.993693][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2725.993693][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2725.993693][   T73]      ___sys_sendmsg+0xee/0x170
[ 2725.993693][   T73]      __sys_sendmsg+0xcd/0x170
[ 2725.993693][   T73]      do_syscall_64+0xc6/0x1e0
[ 2725.993693][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2725.993693][   T73] 
[ 2735.999835][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2736.000290][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2736.000290][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2736.000290][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2736.000290][   T73]      fib6_nh_init+0xa22/0x1580
[ 2736.000290][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2736.000290][   T73]      ip6_route_add+0x1c/0x140
[ 2736.000290][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2736.000290][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2736.000290][   T73]      netlink_rcv_skb+0x130/0x360
[ 2736.000290][   T73]      netlink_unicast+0x449/0x710
[ 2736.000290][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2736.000290][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2736.000290][   T73]      ___sys_sendmsg+0xee/0x170
[ 2736.000290][   T73]      __sys_sendmsg+0xcd/0x170
[ 2736.000290][   T73]      do_syscall_64+0xc6/0x1e0
[ 2736.000290][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2736.000290][   T73] 
[ 2736.002233][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2736.002233][   T73]      dst_init+0x84/0x4a0
[ 2736.002233][   T73]      dst_alloc+0x97/0x150
[ 2736.002233][   T73]      ip6_dst_alloc+0x23/0x90
[ 2736.002233][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2736.002233][   T73]      ip6_pol_route+0x56f/0x840
[ 2736.002233][   T73]      fib6_rule_lookup+0x456/0x630
[ 2736.002233][   T73]      ip6_route_input+0x59c/0xa50
[ 2736.002233][   T73]      ipv6_rcv+0x397/0x810
[ 2736.002233][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2736.002233][   T73]      process_backlog+0x101/0x620
[ 2736.002233][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2736.002233][   T73]      net_rx_action+0x495/0xbe0
[ 2736.002233][   T73]      __do_softirq+0x1b5/0x7f6
[ 2736.002233][   T73] 
[ 2736.003931][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2736.003931][   T73]      netdev_get_by_index+0x5e/0x80
[ 2736.003931][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2736.003931][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2736.003931][   T73]      ip6_route_add+0x1c/0x140
[ 2736.003931][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2736.003931][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2736.003931][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2736.003931][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2736.003931][   T73]      netlink_rcv_skb+0x130/0x360
[ 2736.003931][   T73]      netlink_unicast+0x449/0x710
[ 2736.003931][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2736.003931][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2736.003931][   T73]      ___sys_sendmsg+0xee/0x170
[ 2736.003931][   T73]      __sys_sendmsg+0xcd/0x170
[ 2736.003931][   T73]      do_syscall_64+0xc6/0x1e0
[ 2736.003931][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2736.003931][   T73] 
[ 2736.005988][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2736.005988][   T73]      netdev_get_by_index+0x5e/0x80
[ 2736.005988][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2736.005988][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2736.005988][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2736.005988][   T73]      ipv6_add_addr+0x411/0x2000
[ 2736.005988][   T73]      inet6_addr_add+0x30e/0xa40
[ 2736.005988][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2736.005988][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2736.005988][   T73]      netlink_rcv_skb+0x130/0x360
[ 2736.005988][   T73]      netlink_unicast+0x449/0x710
[ 2736.005988][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2736.005988][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2736.005988][   T73]      ___sys_sendmsg+0xee/0x170
[ 2736.005988][   T73]      __sys_sendmsg+0xcd/0x170
[ 2736.005988][   T73]      do_syscall_64+0xc6/0x1e0
[ 2736.005988][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2736.005988][   T73] 
[ 2736.008044][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2736.008044][   T73]      netdev_get_by_index+0x5e/0x80
[ 2736.008044][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2736.008044][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2736.008044][   T73]      ip6_route_add+0x1c/0x140
[ 2736.008044][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2736.008044][   T73]      addrconf_add_dev+0xe2/0x170
[ 2736.008044][   T73]      inet6_addr_add+0x12f/0xa40
[ 2736.008044][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2736.008044][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2736.008044][   T73]      netlink_rcv_skb+0x130/0x360
[ 2736.008044][   T73]      netlink_unicast+0x449/0x710
[ 2736.008044][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2736.008044][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2736.008044][   T73]      ___sys_sendmsg+0xee/0x170
[ 2736.008044][   T73]      __sys_sendmsg+0xcd/0x170
[ 2736.008044][   T73]      do_syscall_64+0xc6/0x1e0
[ 2736.008044][   T73] 
[ 2736.010074][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2736.010074][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2736.010074][   T73]      ipv6_find_idev+0x102/0x170
[ 2736.010074][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2736.010074][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2736.010074][   T73]      netlink_rcv_skb+0x130/0x360
[ 2736.010074][   T73]      netlink_unicast+0x449/0x710
[ 2736.010074][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2736.010074][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2736.010074][   T73]      ___sys_sendmsg+0xee/0x170
[ 2736.010074][   T73]      __sys_sendmsg+0xcd/0x170
[ 2736.010074][   T73]      do_syscall_64+0xc6/0x1e0
[ 2736.010074][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2736.010074][   T73] 
[ 2736.011664][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2736.011664][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2736.011664][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2736.011664][   T73]      ipv6_find_idev+0x102/0x170
[ 2736.011664][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2736.011664][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2736.011664][   T73]      netlink_rcv_skb+0x130/0x360
[ 2736.011664][   T73]      netlink_unicast+0x449/0x710
[ 2736.011664][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2736.011664][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2736.011664][   T73]      ___sys_sendmsg+0xee/0x170
[ 2736.011664][   T73]      __sys_sendmsg+0xcd/0x170
[ 2736.011664][   T73]      do_syscall_64+0xc6/0x1e0
[ 2736.011664][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2736.011664][   T73] 
[ 2736.013471][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2736.013786][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2736.013786][   T73]      netdev_get_by_index+0x5e/0x80
[ 2736.013786][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2736.013786][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2736.013786][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2736.013786][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2736.013786][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2736.013786][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2736.013786][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2736.013786][   T73]      addrconf_dad_begin+0x310/0x670
[ 2736.013786][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2736.013786][   T73]      process_one_work+0x84d/0x18a0
[ 2736.013786][   T73]      worker_thread+0x587/0xd30
[ 2736.013786][   T73]      kthread+0x28a/0x350
[ 2736.013786][   T73]      ret_from_fork+0x31/0x70
[ 2736.013786][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2736.013786][   T73] 
[ 2736.015740][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2736.015740][   T73]      netdev_get_by_index+0x5e/0x80
[ 2736.015740][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2736.015740][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2736.015740][   T73]      ip6_route_add+0x1c/0x140
[ 2736.015740][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2736.015740][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2736.015740][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2736.015740][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2736.015740][   T73]      netlink_rcv_skb+0x130/0x360
[ 2736.015740][   T73]      netlink_unicast+0x449/0x710
[ 2736.015740][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2736.015740][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2736.015740][   T73]      ___sys_sendmsg+0xee/0x170
[ 2736.015740][   T73]      __sys_sendmsg+0xcd/0x170
[ 2736.015740][   T73]      do_syscall_64+0xc6/0x1e0
[ 2736.015740][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2736.015740][   T73] 
[ 2736.017766][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2736.017766][   T73]      netdev_get_by_index+0x5e/0x80
[ 2736.017766][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2736.017766][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2736.017766][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2736.017766][   T73]      ipv6_add_addr+0x411/0x2000
[ 2736.017766][   T73]      inet6_addr_add+0x30e/0xa40
[ 2736.017766][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2736.017766][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2736.017766][   T73]      netlink_rcv_skb+0x130/0x360
[ 2736.017766][   T73]      netlink_unicast+0x449/0x710
[ 2736.017766][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2736.017766][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2736.017766][   T73]      ___sys_sendmsg+0xee/0x170
[ 2736.017766][   T73]      __sys_sendmsg+0xcd/0x170
[ 2736.017766][   T73]      do_syscall_64+0xc6/0x1e0
[ 2736.017766][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2736.017766][   T73] 
[ 2736.019895][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2736.019895][   T73]      netdev_get_by_index+0x5e/0x80
[ 2736.019895][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2736.019895][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2736.019895][   T73]      ip6_route_add+0x1c/0x140
[ 2736.019895][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2736.019895][   T73]      addrconf_add_dev+0xe2/0x170
[ 2736.019895][   T73]      inet6_addr_add+0x12f/0xa40
[ 2736.019895][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2736.019895][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2736.019895][   T73]      netlink_rcv_skb+0x130/0x360
[ 2736.019895][   T73]      netlink_unicast+0x449/0x710
[ 2736.019895][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2736.019895][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2736.019895][   T73]      ___sys_sendmsg+0xee/0x170
[ 2736.019895][   T73]      __sys_sendmsg+0xcd/0x170
[ 2736.019895][   T73]      do_syscall_64+0xc6/0x1e0
[ 2736.019895][   T73] 
[ 2736.022548][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2736.022548][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2736.022548][   T73]      ipv6_find_idev+0x102/0x170
[ 2736.022548][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2736.022548][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2736.022548][   T73]      netlink_rcv_skb+0x130/0x360
[ 2736.022548][   T73]      netlink_unicast+0x449/0x710
[ 2736.022548][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2736.022548][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2736.022548][   T73]      ___sys_sendmsg+0xee/0x170
[ 2736.022548][   T73]      __sys_sendmsg+0xcd/0x170
[ 2736.022548][   T73]      do_syscall_64+0xc6/0x1e0
[ 2736.022548][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2736.022548][   T73] 
[ 2736.024126][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2736.024126][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2736.024126][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2736.024126][   T73]      ipv6_find_idev+0x102/0x170
[ 2736.024126][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2736.024126][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2736.024126][   T73]      netlink_rcv_skb+0x130/0x360
[ 2736.024126][   T73]      netlink_unicast+0x449/0x710
[ 2736.024126][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2736.024126][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2736.024126][   T73]      ___sys_sendmsg+0xee/0x170
[ 2736.024126][   T73]      __sys_sendmsg+0xcd/0x170
[ 2736.024126][   T73]      do_syscall_64+0xc6/0x1e0
[ 2736.024126][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2736.024126][   T73] 
[ 2736.025866][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2736.026144][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2736.026144][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2736.026144][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2736.026144][   T73]      fib6_nh_init+0xa22/0x1580
[ 2736.026144][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2736.026144][   T73]      ip6_route_add+0x1c/0x140
[ 2736.026144][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2736.026144][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2736.026144][   T73]      netlink_rcv_skb+0x130/0x360
[ 2736.026144][   T73]      netlink_unicast+0x449/0x710
[ 2736.026144][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2736.026144][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2736.026144][   T73]      ___sys_sendmsg+0xee/0x170
[ 2736.026144][   T73]      __sys_sendmsg+0xcd/0x170
[ 2736.026144][   T73]      do_syscall_64+0xc6/0x1e0
[ 2736.026144][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2736.026144][   T73] 
[ 2736.028256][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2736.028256][   T73]      dst_init+0x84/0x4a0
[ 2736.028256][   T73]      dst_alloc+0x97/0x150
[ 2736.028256][   T73]      ip6_dst_alloc+0x23/0x90
[ 2736.028256][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2736.028256][   T73]      ip6_pol_route+0x56f/0x840
[ 2736.028256][   T73]      fib6_rule_lookup+0x456/0x630
[ 2736.028256][   T73]      ip6_route_input+0x59c/0xa50
[ 2736.028256][   T73]      ipv6_rcv+0x397/0x810
[ 2736.028256][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2736.028256][   T73]      process_backlog+0x101/0x620
[ 2736.028256][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2736.028256][   T73]      net_rx_action+0x495/0xbe0
[ 2736.028256][   T73]      __do_softirq+0x1b5/0x7f6
[ 2736.028256][   T73] 
[ 2736.030116][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2736.030116][   T73]      netdev_get_by_index+0x5e/0x80
[ 2736.030116][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2736.030116][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2736.030116][   T73]      ip6_route_add+0x1c/0x140
[ 2736.030116][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2736.030116][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2736.030116][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2736.030116][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2736.030116][   T73]      netlink_rcv_skb+0x130/0x360
[ 2736.030116][   T73]      netlink_unicast+0x449/0x710
[ 2736.030116][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2736.030116][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2736.030116][   T73]      ___sys_sendmsg+0xee/0x170
[ 2736.030116][   T73]      __sys_sendmsg+0xcd/0x170
[ 2736.030116][   T73]      do_syscall_64+0xc6/0x1e0
[ 2736.030116][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2736.030116][   T73] 
[ 2736.032377][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2736.032377][   T73]      netdev_get_by_index+0x5e/0x80
[ 2736.032377][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2736.032377][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2736.032377][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2736.032377][   T73]      ipv6_add_addr+0x411/0x2000
[ 2736.032377][   T73]      inet6_addr_add+0x30e/0xa40
[ 2736.032377][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2736.032377][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2736.032377][   T73]      netlink_rcv_skb+0x130/0x360
[ 2736.032377][   T73]      netlink_unicast+0x449/0x710
[ 2736.032377][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2736.032377][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2736.032377][   T73]      ___sys_sendmsg+0xee/0x170
[ 2736.032377][   T73]      __sys_sendmsg+0xcd/0x170
[ 2736.032377][   T73]      do_syscall_64+0xc6/0x1e0
[ 2736.032377][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2736.032377][   T73] 
[ 2736.034690][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2736.034690][   T73]      netdev_get_by_index+0x5e/0x80
[ 2736.034690][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2736.034690][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2736.034690][   T73]      ip6_route_add+0x1c/0x140
[ 2736.034690][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2736.034690][   T73]      addrconf_add_dev+0xe2/0x170
[ 2736.034690][   T73]      inet6_addr_add+0x12f/0xa40
[ 2736.034690][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2736.034690][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2736.034690][   T73]      netlink_rcv_skb+0x130/0x360
[ 2736.034690][   T73]      netlink_unicast+0x449/0x710
[ 2736.034690][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2736.034690][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2736.034690][   T73]      ___sys_sendmsg+0xee/0x170
[ 2736.034690][   T73]      __sys_sendmsg+0xcd/0x170
[ 2736.034690][   T73]      do_syscall_64+0xc6/0x1e0
[ 2736.034690][   T73] 
[ 2736.036912][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2736.036912][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2736.036912][   T73]      ipv6_find_idev+0x102/0x170
[ 2736.036912][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2736.036912][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2736.036912][   T73]      netlink_rcv_skb+0x130/0x360
[ 2736.036912][   T73]      netlink_unicast+0x449/0x710
[ 2736.036912][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2736.036912][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2736.036912][   T73]      ___sys_sendmsg+0xee/0x170
[ 2736.036912][   T73]      __sys_sendmsg+0xcd/0x170
[ 2736.036912][   T73]      do_syscall_64+0xc6/0x1e0
[ 2736.036912][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2736.036912][   T73] 
[ 2736.038613][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2736.038613][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2736.038613][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2736.038613][   T73]      ipv6_find_idev+0x102/0x170
[ 2736.038613][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2736.038613][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2736.038613][   T73]      netlink_rcv_skb+0x130/0x360
[ 2736.038613][   T73]      netlink_unicast+0x449/0x710
[ 2736.038613][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2736.038613][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2736.038613][   T73]      ___sys_sendmsg+0xee/0x170
[ 2736.038613][   T73]      __sys_sendmsg+0xcd/0x170
[ 2736.038613][   T73]      do_syscall_64+0xc6/0x1e0
[ 2736.038613][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2736.038613][   T73] 
[ 2736.040575][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2736.041299][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2736.041299][   T73]      netdev_get_by_index+0x5e/0x80
[ 2736.041299][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2736.041299][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2736.041299][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2736.041299][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2736.041299][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2736.041299][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2736.041299][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2736.041299][   T73]      addrconf_dad_begin+0x310/0x670
[ 2736.041299][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2736.041299][   T73]      process_one_work+0x84d/0x18a0
[ 2736.041299][   T73]      worker_thread+0x587/0xd30
[ 2736.041299][   T73]      kthread+0x28a/0x350
[ 2736.041299][   T73]      ret_from_fork+0x31/0x70
[ 2736.041299][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2736.041299][   T73] 
[ 2736.043234][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2736.043234][   T73]      netdev_get_by_index+0x5e/0x80
[ 2736.043234][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2736.043234][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2736.043234][   T73]      ip6_route_add+0x1c/0x140
[ 2736.043234][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2736.043234][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2736.043234][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2736.043234][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2736.043234][   T73]      netlink_rcv_skb+0x130/0x360
[ 2736.043234][   T73]      netlink_unicast+0x449/0x710
[ 2736.043234][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2736.043234][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2736.043234][   T73]      ___sys_sendmsg+0xee/0x170
[ 2736.043234][   T73]      __sys_sendmsg+0xcd/0x170
[ 2736.043234][   T73]      do_syscall_64+0xc6/0x1e0
[ 2736.043234][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2736.043234][   T73] 
[ 2736.045371][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2736.045371][   T73]      netdev_get_by_index+0x5e/0x80
[ 2736.045371][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2736.045371][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2736.045371][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2736.045371][   T73]      ipv6_add_addr+0x411/0x2000
[ 2736.045371][   T73]      inet6_addr_add+0x30e/0xa40
[ 2736.045371][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2736.045371][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2736.045371][   T73]      netlink_rcv_skb+0x130/0x360
[ 2736.045371][   T73]      netlink_unicast+0x449/0x710
[ 2736.045371][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2736.045371][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2736.045371][   T73]      ___sys_sendmsg+0xee/0x170
[ 2736.045371][   T73]      __sys_sendmsg+0xcd/0x170
[ 2736.045371][   T73]      do_syscall_64+0xc6/0x1e0
[ 2736.045371][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2736.045371][   T73] 
[ 2736.047689][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2736.047689][   T73]      netdev_get_by_index+0x5e/0x80
[ 2736.047689][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2736.047689][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2736.047689][   T73]      ip6_route_add+0x1c/0x140
[ 2736.047689][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2736.047689][   T73]      addrconf_add_dev+0xe2/0x170
[ 2736.047689][   T73]      inet6_addr_add+0x12f/0xa40
[ 2736.047689][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2736.047689][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2736.047689][   T73]      netlink_rcv_skb+0x130/0x360
[ 2736.047689][   T73]      netlink_unicast+0x449/0x710
[ 2736.047689][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2736.047689][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2736.047689][   T73]      ___sys_sendmsg+0xee/0x170
[ 2736.047689][   T73]      __sys_sendmsg+0xcd/0x170
[ 2736.047689][   T73]      do_syscall_64+0xc6/0x1e0
[ 2736.047689][   T73] 
[ 2736.049852][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2736.049852][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2736.049852][   T73]      ipv6_find_idev+0x102/0x170
[ 2736.049852][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2736.049852][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2736.049852][   T73]      netlink_rcv_skb+0x130/0x360
[ 2736.049852][   T73]      netlink_unicast+0x449/0x710
[ 2736.049852][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2736.049852][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2736.049852][   T73]      ___sys_sendmsg+0xee/0x170
[ 2736.049852][   T73]      __sys_sendmsg+0xcd/0x170
[ 2736.049852][   T73]      do_syscall_64+0xc6/0x1e0
[ 2736.049852][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2736.049852][   T73] 
[ 2736.051585][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2736.051585][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2736.051585][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2736.051585][   T73]      ipv6_find_idev+0x102/0x170
[ 2736.051585][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2736.051585][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2736.051585][   T73]      netlink_rcv_skb+0x130/0x360
[ 2736.051585][   T73]      netlink_unicast+0x449/0x710
[ 2736.051585][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2736.051585][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2736.051585][   T73]      ___sys_sendmsg+0xee/0x170
[ 2736.051585][   T73]      __sys_sendmsg+0xcd/0x170
[ 2736.051585][   T73]      do_syscall_64+0xc6/0x1e0
[ 2736.051585][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2736.051585][   T73] 
[ 2746.303768][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2746.304214][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2746.304214][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2746.304214][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2746.304214][   T73]      fib6_nh_init+0xa22/0x1580
[ 2746.304214][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2746.304214][   T73]      ip6_route_add+0x1c/0x140
[ 2746.304214][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2746.304214][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2746.304214][   T73]      netlink_rcv_skb+0x130/0x360
[ 2746.304214][   T73]      netlink_unicast+0x449/0x710
[ 2746.304214][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2746.304214][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2746.304214][   T73]      ___sys_sendmsg+0xee/0x170
[ 2746.304214][   T73]      __sys_sendmsg+0xcd/0x170
[ 2746.304214][   T73]      do_syscall_64+0xc6/0x1e0
[ 2746.304214][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2746.304214][   T73] 
[ 2746.306146][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2746.306146][   T73]      dst_init+0x84/0x4a0
[ 2746.306146][   T73]      dst_alloc+0x97/0x150
[ 2746.306146][   T73]      ip6_dst_alloc+0x23/0x90
[ 2746.306146][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2746.306146][   T73]      ip6_pol_route+0x56f/0x840
[ 2746.306146][   T73]      fib6_rule_lookup+0x456/0x630
[ 2746.306146][   T73]      ip6_route_input+0x59c/0xa50
[ 2746.306146][   T73]      ipv6_rcv+0x397/0x810
[ 2746.306146][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2746.306146][   T73]      process_backlog+0x101/0x620
[ 2746.306146][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2746.306146][   T73]      net_rx_action+0x495/0xbe0
[ 2746.306146][   T73]      __do_softirq+0x1b5/0x7f6
[ 2746.306146][   T73] 
[ 2746.307813][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2746.307813][   T73]      netdev_get_by_index+0x5e/0x80
[ 2746.307813][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2746.307813][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2746.307813][   T73]      ip6_route_add+0x1c/0x140
[ 2746.307813][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2746.307813][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2746.307813][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2746.307813][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2746.307813][   T73]      netlink_rcv_skb+0x130/0x360
[ 2746.307813][   T73]      netlink_unicast+0x449/0x710
[ 2746.307813][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2746.307813][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2746.307813][   T73]      ___sys_sendmsg+0xee/0x170
[ 2746.307813][   T73]      __sys_sendmsg+0xcd/0x170
[ 2746.307813][   T73]      do_syscall_64+0xc6/0x1e0
[ 2746.307813][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2746.307813][   T73] 
[ 2746.309956][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2746.309956][   T73]      netdev_get_by_index+0x5e/0x80
[ 2746.309956][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2746.309956][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2746.309956][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2746.309956][   T73]      ipv6_add_addr+0x411/0x2000
[ 2746.309956][   T73]      inet6_addr_add+0x30e/0xa40
[ 2746.309956][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2746.309956][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2746.309956][   T73]      netlink_rcv_skb+0x130/0x360
[ 2746.309956][   T73]      netlink_unicast+0x449/0x710
[ 2746.309956][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2746.309956][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2746.309956][   T73]      ___sys_sendmsg+0xee/0x170
[ 2746.309956][   T73]      __sys_sendmsg+0xcd/0x170
[ 2746.309956][   T73]      do_syscall_64+0xc6/0x1e0
[ 2746.309956][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2746.309956][   T73] 
[ 2746.311973][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2746.311973][   T73]      netdev_get_by_index+0x5e/0x80
[ 2746.311973][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2746.311973][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2746.311973][   T73]      ip6_route_add+0x1c/0x140
[ 2746.311973][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2746.311973][   T73]      addrconf_add_dev+0xe2/0x170
[ 2746.311973][   T73]      inet6_addr_add+0x12f/0xa40
[ 2746.311973][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2746.311973][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2746.311973][   T73]      netlink_rcv_skb+0x130/0x360
[ 2746.311973][   T73]      netlink_unicast+0x449/0x710
[ 2746.311973][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2746.311973][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2746.311973][   T73]      ___sys_sendmsg+0xee/0x170
[ 2746.311973][   T73]      __sys_sendmsg+0xcd/0x170
[ 2746.311973][   T73]      do_syscall_64+0xc6/0x1e0
[ 2746.311973][   T73] 
[ 2746.313959][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2746.313959][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2746.313959][   T73]      ipv6_find_idev+0x102/0x170
[ 2746.313959][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2746.313959][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2746.313959][   T73]      netlink_rcv_skb+0x130/0x360
[ 2746.313959][   T73]      netlink_unicast+0x449/0x710
[ 2746.313959][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2746.313959][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2746.313959][   T73]      ___sys_sendmsg+0xee/0x170
[ 2746.313959][   T73]      __sys_sendmsg+0xcd/0x170
[ 2746.313959][   T73]      do_syscall_64+0xc6/0x1e0
[ 2746.313959][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2746.313959][   T73] 
[ 2746.315505][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2746.315505][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2746.315505][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2746.315505][   T73]      ipv6_find_idev+0x102/0x170
[ 2746.315505][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2746.315505][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2746.315505][   T73]      netlink_rcv_skb+0x130/0x360
[ 2746.315505][   T73]      netlink_unicast+0x449/0x710
[ 2746.315505][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2746.315505][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2746.315505][   T73]      ___sys_sendmsg+0xee/0x170
[ 2746.315505][   T73]      __sys_sendmsg+0xcd/0x170
[ 2746.315505][   T73]      do_syscall_64+0xc6/0x1e0
[ 2746.315505][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2746.315505][   T73] 
[ 2746.317229][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2746.317519][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2746.317519][   T73]      netdev_get_by_index+0x5e/0x80
[ 2746.317519][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2746.317519][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2746.317519][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2746.317519][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2746.317519][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2746.317519][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2746.317519][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2746.317519][   T73]      addrconf_dad_begin+0x310/0x670
[ 2746.317519][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2746.317519][   T73]      process_one_work+0x84d/0x18a0
[ 2746.317519][   T73]      worker_thread+0x587/0xd30
[ 2746.317519][   T73]      kthread+0x28a/0x350
[ 2746.317519][   T73]      ret_from_fork+0x31/0x70
[ 2746.317519][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2746.317519][   T73] 
[ 2746.319442][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2746.319442][   T73]      netdev_get_by_index+0x5e/0x80
[ 2746.319442][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2746.319442][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2746.319442][   T73]      ip6_route_add+0x1c/0x140
[ 2746.319442][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2746.319442][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2746.319442][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2746.319442][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2746.319442][   T73]      netlink_rcv_skb+0x130/0x360
[ 2746.319442][   T73]      netlink_unicast+0x449/0x710
[ 2746.319442][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2746.319442][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2746.319442][   T73]      ___sys_sendmsg+0xee/0x170
[ 2746.319442][   T73]      __sys_sendmsg+0xcd/0x170
[ 2746.319442][   T73]      do_syscall_64+0xc6/0x1e0
[ 2746.319442][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2746.319442][   T73] 
[ 2746.321448][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2746.321448][   T73]      netdev_get_by_index+0x5e/0x80
[ 2746.321448][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2746.321448][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2746.321448][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2746.321448][   T73]      ipv6_add_addr+0x411/0x2000
[ 2746.321448][   T73]      inet6_addr_add+0x30e/0xa40
[ 2746.321448][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2746.321448][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2746.321448][   T73]      netlink_rcv_skb+0x130/0x360
[ 2746.321448][   T73]      netlink_unicast+0x449/0x710
[ 2746.321448][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2746.321448][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2746.321448][   T73]      ___sys_sendmsg+0xee/0x170
[ 2746.321448][   T73]      __sys_sendmsg+0xcd/0x170
[ 2746.321448][   T73]      do_syscall_64+0xc6/0x1e0
[ 2746.321448][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2746.321448][   T73] 
[ 2746.323456][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2746.323456][   T73]      netdev_get_by_index+0x5e/0x80
[ 2746.323456][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2746.323456][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2746.323456][   T73]      ip6_route_add+0x1c/0x140
[ 2746.323456][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2746.323456][   T73]      addrconf_add_dev+0xe2/0x170
[ 2746.323456][   T73]      inet6_addr_add+0x12f/0xa40
[ 2746.323456][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2746.323456][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2746.323456][   T73]      netlink_rcv_skb+0x130/0x360
[ 2746.323456][   T73]      netlink_unicast+0x449/0x710
[ 2746.323456][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2746.323456][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2746.323456][   T73]      ___sys_sendmsg+0xee/0x170
[ 2746.323456][   T73]      __sys_sendmsg+0xcd/0x170
[ 2746.323456][   T73]      do_syscall_64+0xc6/0x1e0
[ 2746.323456][   T73] 
[ 2746.325428][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2746.325428][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2746.325428][   T73]      ipv6_find_idev+0x102/0x170
[ 2746.325428][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2746.325428][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2746.325428][   T73]      netlink_rcv_skb+0x130/0x360
[ 2746.325428][   T73]      netlink_unicast+0x449/0x710
[ 2746.325428][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2746.325428][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2746.325428][   T73]      ___sys_sendmsg+0xee/0x170
[ 2746.325428][   T73]      __sys_sendmsg+0xcd/0x170
[ 2746.325428][   T73]      do_syscall_64+0xc6/0x1e0
[ 2746.325428][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2746.325428][   T73] 
[ 2746.326975][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2746.326975][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2746.326975][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2746.326975][   T73]      ipv6_find_idev+0x102/0x170
[ 2746.326975][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2746.326975][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2746.326975][   T73]      netlink_rcv_skb+0x130/0x360
[ 2746.326975][   T73]      netlink_unicast+0x449/0x710
[ 2746.326975][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2746.326975][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2746.326975][   T73]      ___sys_sendmsg+0xee/0x170
[ 2746.326975][   T73]      __sys_sendmsg+0xcd/0x170
[ 2746.326975][   T73]      do_syscall_64+0xc6/0x1e0
[ 2746.326975][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2746.326975][   T73] 
[ 2746.328698][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2746.328981][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2746.328981][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2746.328981][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2746.328981][   T73]      fib6_nh_init+0xa22/0x1580
[ 2746.328981][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2746.328981][   T73]      ip6_route_add+0x1c/0x140
[ 2746.328981][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2746.328981][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2746.328981][   T73]      netlink_rcv_skb+0x130/0x360
[ 2746.328981][   T73]      netlink_unicast+0x449/0x710
[ 2746.328981][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2746.328981][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2746.328981][   T73]      ___sys_sendmsg+0xee/0x170
[ 2746.328981][   T73]      __sys_sendmsg+0xcd/0x170
[ 2746.328981][   T73]      do_syscall_64+0xc6/0x1e0
[ 2746.328981][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2746.328981][   T73] 
[ 2746.331086][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2746.331086][   T73]      dst_init+0x84/0x4a0
[ 2746.331086][   T73]      dst_alloc+0x97/0x150
[ 2746.331086][   T73]      ip6_dst_alloc+0x23/0x90
[ 2746.331086][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2746.331086][   T73]      ip6_pol_route+0x56f/0x840
[ 2746.331086][   T73]      fib6_rule_lookup+0x456/0x630
[ 2746.331086][   T73]      ip6_route_input+0x59c/0xa50
[ 2746.331086][   T73]      ipv6_rcv+0x397/0x810
[ 2746.331086][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2746.331086][   T73]      process_backlog+0x101/0x620
[ 2746.331086][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2746.331086][   T73]      net_rx_action+0x495/0xbe0
[ 2746.331086][   T73]      __do_softirq+0x1b5/0x7f6
[ 2746.331086][   T73] 
[ 2746.332995][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2746.332995][   T73]      netdev_get_by_index+0x5e/0x80
[ 2746.332995][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2746.332995][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2746.332995][   T73]      ip6_route_add+0x1c/0x140
[ 2746.332995][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2746.332995][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2746.332995][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2746.332995][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2746.332995][   T73]      netlink_rcv_skb+0x130/0x360
[ 2746.332995][   T73]      netlink_unicast+0x449/0x710
[ 2746.332995][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2746.332995][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2746.332995][   T73]      ___sys_sendmsg+0xee/0x170
[ 2746.332995][   T73]      __sys_sendmsg+0xcd/0x170
[ 2746.332995][   T73]      do_syscall_64+0xc6/0x1e0
[ 2746.332995][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2746.332995][   T73] 
[ 2746.335259][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2746.335259][   T73]      netdev_get_by_index+0x5e/0x80
[ 2746.335259][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2746.335259][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2746.335259][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2746.335259][   T73]      ipv6_add_addr+0x411/0x2000
[ 2746.335259][   T73]      inet6_addr_add+0x30e/0xa40
[ 2746.335259][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2746.335259][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2746.335259][   T73]      netlink_rcv_skb+0x130/0x360
[ 2746.335259][   T73]      netlink_unicast+0x449/0x710
[ 2746.335259][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2746.335259][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2746.335259][   T73]      ___sys_sendmsg+0xee/0x170
[ 2746.335259][   T73]      __sys_sendmsg+0xcd/0x170
[ 2746.335259][   T73]      do_syscall_64+0xc6/0x1e0
[ 2746.335259][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2746.335259][   T73] 
[ 2746.337528][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2746.337528][   T73]      netdev_get_by_index+0x5e/0x80
[ 2746.337528][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2746.337528][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2746.337528][   T73]      ip6_route_add+0x1c/0x140
[ 2746.337528][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2746.337528][   T73]      addrconf_add_dev+0xe2/0x170
[ 2746.337528][   T73]      inet6_addr_add+0x12f/0xa40
[ 2746.337528][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2746.337528][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2746.337528][   T73]      netlink_rcv_skb+0x130/0x360
[ 2746.337528][   T73]      netlink_unicast+0x449/0x710
[ 2746.337528][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2746.337528][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2746.337528][   T73]      ___sys_sendmsg+0xee/0x170
[ 2746.337528][   T73]      __sys_sendmsg+0xcd/0x170
[ 2746.337528][   T73]      do_syscall_64+0xc6/0x1e0
[ 2746.337528][   T73] 
[ 2746.339766][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2746.339766][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2746.339766][   T73]      ipv6_find_idev+0x102/0x170
[ 2746.339766][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2746.339766][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2746.339766][   T73]      netlink_rcv_skb+0x130/0x360
[ 2746.339766][   T73]      netlink_unicast+0x449/0x710
[ 2746.339766][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2746.339766][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2746.339766][   T73]      ___sys_sendmsg+0xee/0x170
[ 2746.339766][   T73]      __sys_sendmsg+0xcd/0x170
[ 2746.339766][   T73]      do_syscall_64+0xc6/0x1e0
[ 2746.339766][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2746.339766][   T73] 
[ 2746.341501][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2746.341501][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2746.341501][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2746.341501][   T73]      ipv6_find_idev+0x102/0x170
[ 2746.341501][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2746.341501][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2746.341501][   T73]      netlink_rcv_skb+0x130/0x360
[ 2746.341501][   T73]      netlink_unicast+0x449/0x710
[ 2746.341501][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2746.341501][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2746.341501][   T73]      ___sys_sendmsg+0xee/0x170
[ 2746.341501][   T73]      __sys_sendmsg+0xcd/0x170
[ 2746.341501][   T73]      do_syscall_64+0xc6/0x1e0
[ 2746.341501][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2746.341501][   T73] 
[ 2746.343487][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2746.344204][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2746.344204][   T73]      netdev_get_by_index+0x5e/0x80
[ 2746.344204][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2746.344204][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2746.344204][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2746.344204][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2746.344204][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2746.344204][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2746.344204][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2746.344204][   T73]      addrconf_dad_begin+0x310/0x670
[ 2746.344204][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2746.344204][   T73]      process_one_work+0x84d/0x18a0
[ 2746.344204][   T73]      worker_thread+0x587/0xd30
[ 2746.344204][   T73]      kthread+0x28a/0x350
[ 2746.344204][   T73]      ret_from_fork+0x31/0x70
[ 2746.344204][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2746.344204][   T73] 
[ 2746.346164][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2746.346164][   T73]      netdev_get_by_index+0x5e/0x80
[ 2746.346164][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2746.346164][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2746.346164][   T73]      ip6_route_add+0x1c/0x140
[ 2746.346164][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2746.346164][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2746.346164][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2746.346164][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2746.346164][   T73]      netlink_rcv_skb+0x130/0x360
[ 2746.346164][   T73]      netlink_unicast+0x449/0x710
[ 2746.346164][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2746.346164][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2746.346164][   T73]      ___sys_sendmsg+0xee/0x170
[ 2746.346164][   T73]      __sys_sendmsg+0xcd/0x170
[ 2746.346164][   T73]      do_syscall_64+0xc6/0x1e0
[ 2746.346164][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2746.346164][   T73] 
[ 2746.348400][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2746.348400][   T73]      netdev_get_by_index+0x5e/0x80
[ 2746.348400][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2746.348400][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2746.348400][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2746.348400][   T73]      ipv6_add_addr+0x411/0x2000
[ 2746.348400][   T73]      inet6_addr_add+0x30e/0xa40
[ 2746.348400][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2746.348400][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2746.348400][   T73]      netlink_rcv_skb+0x130/0x360
[ 2746.348400][   T73]      netlink_unicast+0x449/0x710
[ 2746.348400][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2746.348400][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2746.348400][   T73]      ___sys_sendmsg+0xee/0x170
[ 2746.348400][   T73]      __sys_sendmsg+0xcd/0x170
[ 2746.348400][   T73]      do_syscall_64+0xc6/0x1e0
[ 2746.348400][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2746.348400][   T73] 
[ 2746.350648][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2746.350648][   T73]      netdev_get_by_index+0x5e/0x80
[ 2746.350648][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2746.350648][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2746.350648][   T73]      ip6_route_add+0x1c/0x140
[ 2746.350648][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2746.350648][   T73]      addrconf_add_dev+0xe2/0x170
[ 2746.350648][   T73]      inet6_addr_add+0x12f/0xa40
[ 2746.350648][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2746.350648][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2746.350648][   T73]      netlink_rcv_skb+0x130/0x360
[ 2746.350648][   T73]      netlink_unicast+0x449/0x710
[ 2746.350648][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2746.350648][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2746.350648][   T73]      ___sys_sendmsg+0xee/0x170
[ 2746.350648][   T73]      __sys_sendmsg+0xcd/0x170
[ 2746.350648][   T73]      do_syscall_64+0xc6/0x1e0
[ 2746.350648][   T73] 
[ 2746.352804][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2746.352804][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2746.352804][   T73]      ipv6_find_idev+0x102/0x170
[ 2746.352804][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2746.352804][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2746.352804][   T73]      netlink_rcv_skb+0x130/0x360
[ 2746.352804][   T73]      netlink_unicast+0x449/0x710
[ 2746.352804][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2746.352804][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2746.352804][   T73]      ___sys_sendmsg+0xee/0x170
[ 2746.352804][   T73]      __sys_sendmsg+0xcd/0x170
[ 2746.352804][   T73]      do_syscall_64+0xc6/0x1e0
[ 2746.352804][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2746.352804][   T73] 
[ 2746.354591][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2746.354591][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2746.354591][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2746.354591][   T73]      ipv6_find_idev+0x102/0x170
[ 2746.354591][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2746.354591][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2746.354591][   T73]      netlink_rcv_skb+0x130/0x360
[ 2746.354591][   T73]      netlink_unicast+0x449/0x710
[ 2746.354591][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2746.354591][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2746.354591][   T73]      ___sys_sendmsg+0xee/0x170
[ 2746.354591][   T73]      __sys_sendmsg+0xcd/0x170
[ 2746.354591][   T73]      do_syscall_64+0xc6/0x1e0
[ 2746.354591][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2746.354591][   T73] 
[ 2756.607714][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2756.608150][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2756.608150][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2756.608150][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2756.608150][   T73]      fib6_nh_init+0xa22/0x1580
[ 2756.608150][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2756.608150][   T73]      ip6_route_add+0x1c/0x140
[ 2756.608150][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2756.608150][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2756.608150][   T73]      netlink_rcv_skb+0x130/0x360
[ 2756.608150][   T73]      netlink_unicast+0x449/0x710
[ 2756.608150][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2756.608150][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2756.608150][   T73]      ___sys_sendmsg+0xee/0x170
[ 2756.608150][   T73]      __sys_sendmsg+0xcd/0x170
[ 2756.608150][   T73]      do_syscall_64+0xc6/0x1e0
[ 2756.608150][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2756.608150][   T73] 
[ 2756.610276][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2756.610276][   T73]      dst_init+0x84/0x4a0
[ 2756.610276][   T73]      dst_alloc+0x97/0x150
[ 2756.610276][   T73]      ip6_dst_alloc+0x23/0x90
[ 2756.610276][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2756.610276][   T73]      ip6_pol_route+0x56f/0x840
[ 2756.610276][   T73]      fib6_rule_lookup+0x456/0x630
[ 2756.610276][   T73]      ip6_route_input+0x59c/0xa50
[ 2756.610276][   T73]      ipv6_rcv+0x397/0x810
[ 2756.610276][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2756.610276][   T73]      process_backlog+0x101/0x620
[ 2756.610276][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2756.610276][   T73]      net_rx_action+0x495/0xbe0
[ 2756.610276][   T73]      __do_softirq+0x1b5/0x7f6
[ 2756.610276][   T73] 
[ 2756.612138][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2756.612138][   T73]      netdev_get_by_index+0x5e/0x80
[ 2756.612138][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2756.612138][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2756.612138][   T73]      ip6_route_add+0x1c/0x140
[ 2756.612138][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2756.612138][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2756.612138][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2756.612138][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2756.612138][   T73]      netlink_rcv_skb+0x130/0x360
[ 2756.612138][   T73]      netlink_unicast+0x449/0x710
[ 2756.612138][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2756.612138][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2756.612138][   T73]      ___sys_sendmsg+0xee/0x170
[ 2756.612138][   T73]      __sys_sendmsg+0xcd/0x170
[ 2756.612138][   T73]      do_syscall_64+0xc6/0x1e0
[ 2756.612138][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2756.612138][   T73] 
[ 2756.614381][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2756.614381][   T73]      netdev_get_by_index+0x5e/0x80
[ 2756.614381][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2756.614381][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2756.614381][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2756.614381][   T73]      ipv6_add_addr+0x411/0x2000
[ 2756.614381][   T73]      inet6_addr_add+0x30e/0xa40
[ 2756.614381][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2756.614381][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2756.614381][   T73]      netlink_rcv_skb+0x130/0x360
[ 2756.614381][   T73]      netlink_unicast+0x449/0x710
[ 2756.614381][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2756.614381][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2756.614381][   T73]      ___sys_sendmsg+0xee/0x170
[ 2756.614381][   T73]      __sys_sendmsg+0xcd/0x170
[ 2756.614381][   T73]      do_syscall_64+0xc6/0x1e0
[ 2756.614381][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2756.614381][   T73] 
[ 2756.616640][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2756.616640][   T73]      netdev_get_by_index+0x5e/0x80
[ 2756.616640][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2756.616640][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2756.616640][   T73]      ip6_route_add+0x1c/0x140
[ 2756.616640][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2756.616640][   T73]      addrconf_add_dev+0xe2/0x170
[ 2756.616640][   T73]      inet6_addr_add+0x12f/0xa40
[ 2756.616640][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2756.616640][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2756.616640][   T73]      netlink_rcv_skb+0x130/0x360
[ 2756.616640][   T73]      netlink_unicast+0x449/0x710
[ 2756.616640][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2756.616640][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2756.616640][   T73]      ___sys_sendmsg+0xee/0x170
[ 2756.616640][   T73]      __sys_sendmsg+0xcd/0x170
[ 2756.616640][   T73]      do_syscall_64+0xc6/0x1e0
[ 2756.616640][   T73] 
[ 2756.618880][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2756.618880][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2756.618880][   T73]      ipv6_find_idev+0x102/0x170
[ 2756.618880][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2756.618880][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2756.618880][   T73]      netlink_rcv_skb+0x130/0x360
[ 2756.618880][   T73]      netlink_unicast+0x449/0x710
[ 2756.618880][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2756.618880][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2756.618880][   T73]      ___sys_sendmsg+0xee/0x170
[ 2756.618880][   T73]      __sys_sendmsg+0xcd/0x170
[ 2756.618880][   T73]      do_syscall_64+0xc6/0x1e0
[ 2756.618880][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2756.618880][   T73] 
[ 2756.620632][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2756.620632][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2756.620632][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2756.620632][   T73]      ipv6_find_idev+0x102/0x170
[ 2756.620632][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2756.620632][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2756.620632][   T73]      netlink_rcv_skb+0x130/0x360
[ 2756.620632][   T73]      netlink_unicast+0x449/0x710
[ 2756.620632][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2756.620632][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2756.620632][   T73]      ___sys_sendmsg+0xee/0x170
[ 2756.620632][   T73]      __sys_sendmsg+0xcd/0x170
[ 2756.620632][   T73]      do_syscall_64+0xc6/0x1e0
[ 2756.620632][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2756.620632][   T73] 
[ 2756.622536][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2756.622867][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2756.622867][   T73]      netdev_get_by_index+0x5e/0x80
[ 2756.622867][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2756.622867][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2756.622867][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2756.622867][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2756.622867][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2756.622867][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2756.622867][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2756.622867][   T73]      addrconf_dad_begin+0x310/0x670
[ 2756.622867][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2756.622867][   T73]      process_one_work+0x84d/0x18a0
[ 2756.622867][   T73]      worker_thread+0x587/0xd30
[ 2756.622867][   T73]      kthread+0x28a/0x350
[ 2756.622867][   T73]      ret_from_fork+0x31/0x70
[ 2756.622867][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2756.622867][   T73] 
[ 2756.625057][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2756.625057][   T73]      netdev_get_by_index+0x5e/0x80
[ 2756.625057][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2756.625057][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2756.625057][   T73]      ip6_route_add+0x1c/0x140
[ 2756.625057][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2756.625057][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2756.625057][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2756.625057][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2756.625057][   T73]      netlink_rcv_skb+0x130/0x360
[ 2756.625057][   T73]      netlink_unicast+0x449/0x710
[ 2756.625057][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2756.625057][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2756.625057][   T73]      ___sys_sendmsg+0xee/0x170
[ 2756.625057][   T73]      __sys_sendmsg+0xcd/0x170
[ 2756.625057][   T73]      do_syscall_64+0xc6/0x1e0
[ 2756.625057][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2756.625057][   T73] 
[ 2756.627310][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2756.627310][   T73]      netdev_get_by_index+0x5e/0x80
[ 2756.627310][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2756.627310][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2756.627310][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2756.627310][   T73]      ipv6_add_addr+0x411/0x2000
[ 2756.627310][   T73]      inet6_addr_add+0x30e/0xa40
[ 2756.627310][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2756.627310][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2756.627310][   T73]      netlink_rcv_skb+0x130/0x360
[ 2756.627310][   T73]      netlink_unicast+0x449/0x710
[ 2756.627310][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2756.627310][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2756.627310][   T73]      ___sys_sendmsg+0xee/0x170
[ 2756.627310][   T73]      __sys_sendmsg+0xcd/0x170
[ 2756.627310][   T73]      do_syscall_64+0xc6/0x1e0
[ 2756.627310][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2756.627310][   T73] 
[ 2756.629561][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2756.629561][   T73]      netdev_get_by_index+0x5e/0x80
[ 2756.629561][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2756.629561][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2756.629561][   T73]      ip6_route_add+0x1c/0x140
[ 2756.629561][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2756.629561][   T73]      addrconf_add_dev+0xe2/0x170
[ 2756.629561][   T73]      inet6_addr_add+0x12f/0xa40
[ 2756.629561][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2756.629561][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2756.629561][   T73]      netlink_rcv_skb+0x130/0x360
[ 2756.629561][   T73]      netlink_unicast+0x449/0x710
[ 2756.629561][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2756.629561][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2756.629561][   T73]      ___sys_sendmsg+0xee/0x170
[ 2756.629561][   T73]      __sys_sendmsg+0xcd/0x170
[ 2756.629561][   T73]      do_syscall_64+0xc6/0x1e0
[ 2756.629561][   T73] 
[ 2756.631770][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2756.631770][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2756.631770][   T73]      ipv6_find_idev+0x102/0x170
[ 2756.631770][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2756.631770][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2756.631770][   T73]      netlink_rcv_skb+0x130/0x360
[ 2756.631770][   T73]      netlink_unicast+0x449/0x710
[ 2756.631770][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2756.631770][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2756.631770][   T73]      ___sys_sendmsg+0xee/0x170
[ 2756.631770][   T73]      __sys_sendmsg+0xcd/0x170
[ 2756.631770][   T73]      do_syscall_64+0xc6/0x1e0
[ 2756.631770][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2756.631770][   T73] 
[ 2756.633496][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2756.633496][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2756.633496][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2756.633496][   T73]      ipv6_find_idev+0x102/0x170
[ 2756.633496][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2756.633496][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2756.633496][   T73]      netlink_rcv_skb+0x130/0x360
[ 2756.633496][   T73]      netlink_unicast+0x449/0x710
[ 2756.633496][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2756.633496][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2756.633496][   T73]      ___sys_sendmsg+0xee/0x170
[ 2756.633496][   T73]      __sys_sendmsg+0xcd/0x170
[ 2756.633496][   T73]      do_syscall_64+0xc6/0x1e0
[ 2756.633496][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2756.633496][   T73] 
[ 2756.635394][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2756.635694][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2756.635694][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2756.635694][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2756.635694][   T73]      fib6_nh_init+0xa22/0x1580
[ 2756.635694][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2756.635694][   T73]      ip6_route_add+0x1c/0x140
[ 2756.635694][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2756.635694][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2756.635694][   T73]      netlink_rcv_skb+0x130/0x360
[ 2756.635694][   T73]      netlink_unicast+0x449/0x710
[ 2756.635694][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2756.635694][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2756.635694][   T73]      ___sys_sendmsg+0xee/0x170
[ 2756.635694][   T73]      __sys_sendmsg+0xcd/0x170
[ 2756.635694][   T73]      do_syscall_64+0xc6/0x1e0
[ 2756.635694][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2756.635694][   T73] 
[ 2756.637954][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2756.637954][   T73]      dst_init+0x84/0x4a0
[ 2756.637954][   T73]      dst_alloc+0x97/0x150
[ 2756.637954][   T73]      ip6_dst_alloc+0x23/0x90
[ 2756.637954][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2756.637954][   T73]      ip6_pol_route+0x56f/0x840
[ 2756.637954][   T73]      fib6_rule_lookup+0x456/0x630
[ 2756.637954][   T73]      ip6_route_input+0x59c/0xa50
[ 2756.637954][   T73]      ipv6_rcv+0x397/0x810
[ 2756.637954][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2756.637954][   T73]      process_backlog+0x101/0x620
[ 2756.637954][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2756.637954][   T73]      net_rx_action+0x495/0xbe0
[ 2756.637954][   T73]      __do_softirq+0x1b5/0x7f6
[ 2756.637954][   T73] 
[ 2756.639963][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2756.639963][   T73]      netdev_get_by_index+0x5e/0x80
[ 2756.639963][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2756.639963][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2756.639963][   T73]      ip6_route_add+0x1c/0x140
[ 2756.639963][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2756.639963][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2756.639963][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2756.639963][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2756.639963][   T73]      netlink_rcv_skb+0x130/0x360
[ 2756.639963][   T73]      netlink_unicast+0x449/0x710
[ 2756.639963][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2756.639963][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2756.639963][   T73]      ___sys_sendmsg+0xee/0x170
[ 2756.639963][   T73]      __sys_sendmsg+0xcd/0x170
[ 2756.639963][   T73]      do_syscall_64+0xc6/0x1e0
[ 2756.639963][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2756.639963][   T73] 
[ 2756.642290][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2756.642290][   T73]      netdev_get_by_index+0x5e/0x80
[ 2756.642290][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2756.642290][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2756.642290][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2756.642290][   T73]      ipv6_add_addr+0x411/0x2000
[ 2756.642290][   T73]      inet6_addr_add+0x30e/0xa40
[ 2756.642290][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2756.642290][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2756.642290][   T73]      netlink_rcv_skb+0x130/0x360
[ 2756.642290][   T73]      netlink_unicast+0x449/0x710
[ 2756.642290][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2756.642290][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2756.642290][   T73]      ___sys_sendmsg+0xee/0x170
[ 2756.642290][   T73]      __sys_sendmsg+0xcd/0x170
[ 2756.642290][   T73]      do_syscall_64+0xc6/0x1e0
[ 2756.642290][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2756.642290][   T73] 
[ 2756.644702][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2756.644702][   T73]      netdev_get_by_index+0x5e/0x80
[ 2756.644702][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2756.644702][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2756.644702][   T73]      ip6_route_add+0x1c/0x140
[ 2756.644702][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2756.644702][   T73]      addrconf_add_dev+0xe2/0x170
[ 2756.644702][   T73]      inet6_addr_add+0x12f/0xa40
[ 2756.644702][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2756.644702][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2756.644702][   T73]      netlink_rcv_skb+0x130/0x360
[ 2756.644702][   T73]      netlink_unicast+0x449/0x710
[ 2756.644702][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2756.644702][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2756.644702][   T73]      ___sys_sendmsg+0xee/0x170
[ 2756.644702][   T73]      __sys_sendmsg+0xcd/0x170
[ 2756.644702][   T73]      do_syscall_64+0xc6/0x1e0
[ 2756.644702][   T73] 
[ 2756.647037][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2756.647037][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2756.647037][   T73]      ipv6_find_idev+0x102/0x170
[ 2756.647037][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2756.647037][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2756.647037][   T73]      netlink_rcv_skb+0x130/0x360
[ 2756.647037][   T73]      netlink_unicast+0x449/0x710
[ 2756.647037][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2756.647037][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2756.647037][   T73]      ___sys_sendmsg+0xee/0x170
[ 2756.647037][   T73]      __sys_sendmsg+0xcd/0x170
[ 2756.647037][   T73]      do_syscall_64+0xc6/0x1e0
[ 2756.647037][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2756.647037][   T73] 
[ 2756.648973][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2756.648973][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2756.648973][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2756.648973][   T73]      ipv6_find_idev+0x102/0x170
[ 2756.648973][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2756.648973][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2756.648973][   T73]      netlink_rcv_skb+0x130/0x360
[ 2756.648973][   T73]      netlink_unicast+0x449/0x710
[ 2756.648973][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2756.648973][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2756.648973][   T73]      ___sys_sendmsg+0xee/0x170
[ 2756.648973][   T73]      __sys_sendmsg+0xcd/0x170
[ 2756.648973][   T73]      do_syscall_64+0xc6/0x1e0
[ 2756.648973][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2756.648973][   T73] 
[ 2756.650964][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2756.651340][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2756.651340][   T73]      netdev_get_by_index+0x5e/0x80
[ 2756.651340][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2756.651340][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2756.651340][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2756.651340][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2756.651340][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2756.651340][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2756.651340][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2756.651340][   T73]      addrconf_dad_begin+0x310/0x670
[ 2756.651340][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2756.651340][   T73]      process_one_work+0x84d/0x18a0
[ 2756.651340][   T73]      worker_thread+0x587/0xd30
[ 2756.651340][   T73]      kthread+0x28a/0x350
[ 2756.651340][   T73]      ret_from_fork+0x31/0x70
[ 2756.651340][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2756.651340][   T73] 
[ 2756.653578][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2756.653578][   T73]      netdev_get_by_index+0x5e/0x80
[ 2756.653578][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2756.653578][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2756.653578][   T73]      ip6_route_add+0x1c/0x140
[ 2756.653578][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2756.653578][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2756.653578][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2756.653578][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2756.653578][   T73]      netlink_rcv_skb+0x130/0x360
[ 2756.653578][   T73]      netlink_unicast+0x449/0x710
[ 2756.653578][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2756.653578][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2756.653578][   T73]      ___sys_sendmsg+0xee/0x170
[ 2756.653578][   T73]      __sys_sendmsg+0xcd/0x170
[ 2756.653578][   T73]      do_syscall_64+0xc6/0x1e0
[ 2756.653578][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2756.653578][   T73] 
[ 2756.655989][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2756.655989][   T73]      netdev_get_by_index+0x5e/0x80
[ 2756.655989][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2756.655989][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2756.655989][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2756.655989][   T73]      ipv6_add_addr+0x411/0x2000
[ 2756.655989][   T73]      inet6_addr_add+0x30e/0xa40
[ 2756.655989][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2756.655989][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2756.655989][   T73]      netlink_rcv_skb+0x130/0x360
[ 2756.655989][   T73]      netlink_unicast+0x449/0x710
[ 2756.655989][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2756.655989][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2756.655989][   T73]      ___sys_sendmsg+0xee/0x170
[ 2756.655989][   T73]      __sys_sendmsg+0xcd/0x170
[ 2756.655989][   T73]      do_syscall_64+0xc6/0x1e0
[ 2756.655989][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2756.655989][   T73] 
[ 2756.658376][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2756.658376][   T73]      netdev_get_by_index+0x5e/0x80
[ 2756.658376][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2756.658376][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2756.658376][   T73]      ip6_route_add+0x1c/0x140
[ 2756.658376][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2756.658376][   T73]      addrconf_add_dev+0xe2/0x170
[ 2756.658376][   T73]      inet6_addr_add+0x12f/0xa40
[ 2756.658376][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2756.658376][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2756.658376][   T73]      netlink_rcv_skb+0x130/0x360
[ 2756.658376][   T73]      netlink_unicast+0x449/0x710
[ 2756.658376][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2756.658376][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2756.658376][   T73]      ___sys_sendmsg+0xee/0x170
[ 2756.658376][   T73]      __sys_sendmsg+0xcd/0x170
[ 2756.658376][   T73]      do_syscall_64+0xc6/0x1e0
[ 2756.658376][   T73] 
[ 2756.660728][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2756.660728][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2756.660728][   T73]      ipv6_find_idev+0x102/0x170
[ 2756.660728][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2756.660728][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2756.660728][   T73]      netlink_rcv_skb+0x130/0x360
[ 2756.660728][   T73]      netlink_unicast+0x449/0x710
[ 2756.660728][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2756.660728][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2756.660728][   T73]      ___sys_sendmsg+0xee/0x170
[ 2756.660728][   T73]      __sys_sendmsg+0xcd/0x170
[ 2756.660728][   T73]      do_syscall_64+0xc6/0x1e0
[ 2756.660728][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2756.660728][   T73] 
[ 2756.663180][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2756.663180][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2756.663180][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2756.663180][   T73]      ipv6_find_idev+0x102/0x170
[ 2756.663180][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2756.663180][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2756.663180][   T73]      netlink_rcv_skb+0x130/0x360
[ 2756.663180][   T73]      netlink_unicast+0x449/0x710
[ 2756.663180][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2756.663180][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2756.663180][   T73]      ___sys_sendmsg+0xee/0x170
[ 2756.663180][   T73]      __sys_sendmsg+0xcd/0x170
[ 2756.663180][   T73]      do_syscall_64+0xc6/0x1e0
[ 2756.663180][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2756.663180][   T73] 
[ 2766.775841][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2766.776285][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2766.776285][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2766.776285][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2766.776285][   T73]      fib6_nh_init+0xa22/0x1580
[ 2766.776285][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2766.776285][   T73]      ip6_route_add+0x1c/0x140
[ 2766.776285][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2766.776285][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2766.776285][   T73]      netlink_rcv_skb+0x130/0x360
[ 2766.776285][   T73]      netlink_unicast+0x449/0x710
[ 2766.776285][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2766.776285][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2766.776285][   T73]      ___sys_sendmsg+0xee/0x170
[ 2766.776285][   T73]      __sys_sendmsg+0xcd/0x170
[ 2766.776285][   T73]      do_syscall_64+0xc6/0x1e0
[ 2766.776285][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2766.776285][   T73] 
[ 2766.778202][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2766.778202][   T73]      dst_init+0x84/0x4a0
[ 2766.778202][   T73]      dst_alloc+0x97/0x150
[ 2766.778202][   T73]      ip6_dst_alloc+0x23/0x90
[ 2766.778202][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2766.778202][   T73]      ip6_pol_route+0x56f/0x840
[ 2766.778202][   T73]      fib6_rule_lookup+0x456/0x630
[ 2766.778202][   T73]      ip6_route_input+0x59c/0xa50
[ 2766.778202][   T73]      ipv6_rcv+0x397/0x810
[ 2766.778202][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2766.778202][   T73]      process_backlog+0x101/0x620
[ 2766.778202][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2766.778202][   T73]      net_rx_action+0x495/0xbe0
[ 2766.778202][   T73]      __do_softirq+0x1b5/0x7f6
[ 2766.778202][   T73] 
[ 2766.779857][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2766.779857][   T73]      netdev_get_by_index+0x5e/0x80
[ 2766.779857][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2766.779857][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2766.779857][   T73]      ip6_route_add+0x1c/0x140
[ 2766.779857][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2766.779857][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2766.779857][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2766.779857][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2766.779857][   T73]      netlink_rcv_skb+0x130/0x360
[ 2766.779857][   T73]      netlink_unicast+0x449/0x710
[ 2766.779857][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2766.779857][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2766.779857][   T73]      ___sys_sendmsg+0xee/0x170
[ 2766.779857][   T73]      __sys_sendmsg+0xcd/0x170
[ 2766.779857][   T73]      do_syscall_64+0xc6/0x1e0
[ 2766.779857][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2766.779857][   T73] 
[ 2766.781875][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2766.781875][   T73]      netdev_get_by_index+0x5e/0x80
[ 2766.781875][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2766.781875][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2766.781875][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2766.781875][   T73]      ipv6_add_addr+0x411/0x2000
[ 2766.781875][   T73]      inet6_addr_add+0x30e/0xa40
[ 2766.781875][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2766.781875][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2766.781875][   T73]      netlink_rcv_skb+0x130/0x360
[ 2766.781875][   T73]      netlink_unicast+0x449/0x710
[ 2766.781875][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2766.781875][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2766.781875][   T73]      ___sys_sendmsg+0xee/0x170
[ 2766.781875][   T73]      __sys_sendmsg+0xcd/0x170
[ 2766.781875][   T73]      do_syscall_64+0xc6/0x1e0
[ 2766.781875][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2766.781875][   T73] 
[ 2766.783880][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2766.783880][   T73]      netdev_get_by_index+0x5e/0x80
[ 2766.783880][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2766.783880][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2766.783880][   T73]      ip6_route_add+0x1c/0x140
[ 2766.783880][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2766.783880][   T73]      addrconf_add_dev+0xe2/0x170
[ 2766.783880][   T73]      inet6_addr_add+0x12f/0xa40
[ 2766.783880][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2766.783880][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2766.783880][   T73]      netlink_rcv_skb+0x130/0x360
[ 2766.783880][   T73]      netlink_unicast+0x449/0x710
[ 2766.783880][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2766.783880][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2766.783880][   T73]      ___sys_sendmsg+0xee/0x170
[ 2766.783880][   T73]      __sys_sendmsg+0xcd/0x170
[ 2766.783880][   T73]      do_syscall_64+0xc6/0x1e0
[ 2766.783880][   T73] 
[ 2766.785864][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2766.785864][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2766.785864][   T73]      ipv6_find_idev+0x102/0x170
[ 2766.785864][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2766.785864][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2766.785864][   T73]      netlink_rcv_skb+0x130/0x360
[ 2766.785864][   T73]      netlink_unicast+0x449/0x710
[ 2766.785864][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2766.785864][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2766.785864][   T73]      ___sys_sendmsg+0xee/0x170
[ 2766.785864][   T73]      __sys_sendmsg+0xcd/0x170
[ 2766.785864][   T73]      do_syscall_64+0xc6/0x1e0
[ 2766.785864][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2766.785864][   T73] 
[ 2766.787452][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2766.787452][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2766.787452][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2766.787452][   T73]      ipv6_find_idev+0x102/0x170
[ 2766.787452][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2766.787452][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2766.787452][   T73]      netlink_rcv_skb+0x130/0x360
[ 2766.787452][   T73]      netlink_unicast+0x449/0x710
[ 2766.787452][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2766.787452][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2766.787452][   T73]      ___sys_sendmsg+0xee/0x170
[ 2766.787452][   T73]      __sys_sendmsg+0xcd/0x170
[ 2766.787452][   T73]      do_syscall_64+0xc6/0x1e0
[ 2766.787452][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2766.787452][   T73] 
[ 2766.789175][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2766.789468][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2766.789468][   T73]      netdev_get_by_index+0x5e/0x80
[ 2766.789468][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2766.789468][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2766.789468][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2766.789468][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2766.789468][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2766.789468][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2766.789468][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2766.789468][   T73]      addrconf_dad_begin+0x310/0x670
[ 2766.789468][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2766.789468][   T73]      process_one_work+0x84d/0x18a0
[ 2766.789468][   T73]      worker_thread+0x587/0xd30
[ 2766.789468][   T73]      kthread+0x28a/0x350
[ 2766.789468][   T73]      ret_from_fork+0x31/0x70
[ 2766.789468][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2766.789468][   T73] 
[ 2766.791387][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2766.791387][   T73]      netdev_get_by_index+0x5e/0x80
[ 2766.791387][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2766.791387][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2766.791387][   T73]      ip6_route_add+0x1c/0x140
[ 2766.791387][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2766.791387][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2766.791387][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2766.791387][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2766.791387][   T73]      netlink_rcv_skb+0x130/0x360
[ 2766.791387][   T73]      netlink_unicast+0x449/0x710
[ 2766.791387][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2766.791387][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2766.791387][   T73]      ___sys_sendmsg+0xee/0x170
[ 2766.791387][   T73]      __sys_sendmsg+0xcd/0x170
[ 2766.791387][   T73]      do_syscall_64+0xc6/0x1e0
[ 2766.791387][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2766.791387][   T73] 
[ 2766.793395][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2766.793395][   T73]      netdev_get_by_index+0x5e/0x80
[ 2766.793395][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2766.793395][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2766.793395][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2766.793395][   T73]      ipv6_add_addr+0x411/0x2000
[ 2766.793395][   T73]      inet6_addr_add+0x30e/0xa40
[ 2766.793395][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2766.793395][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2766.793395][   T73]      netlink_rcv_skb+0x130/0x360
[ 2766.793395][   T73]      netlink_unicast+0x449/0x710
[ 2766.793395][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2766.793395][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2766.793395][   T73]      ___sys_sendmsg+0xee/0x170
[ 2766.793395][   T73]      __sys_sendmsg+0xcd/0x170
[ 2766.793395][   T73]      do_syscall_64+0xc6/0x1e0
[ 2766.793395][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2766.793395][   T73] 
[ 2766.795405][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2766.795405][   T73]      netdev_get_by_index+0x5e/0x80
[ 2766.795405][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2766.795405][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2766.795405][   T73]      ip6_route_add+0x1c/0x140
[ 2766.795405][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2766.795405][   T73]      addrconf_add_dev+0xe2/0x170
[ 2766.795405][   T73]      inet6_addr_add+0x12f/0xa40
[ 2766.795405][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2766.795405][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2766.795405][   T73]      netlink_rcv_skb+0x130/0x360
[ 2766.795405][   T73]      netlink_unicast+0x449/0x710
[ 2766.795405][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2766.795405][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2766.795405][   T73]      ___sys_sendmsg+0xee/0x170
[ 2766.795405][   T73]      __sys_sendmsg+0xcd/0x170
[ 2766.795405][   T73]      do_syscall_64+0xc6/0x1e0
[ 2766.795405][   T73] 
[ 2766.797380][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2766.797380][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2766.797380][   T73]      ipv6_find_idev+0x102/0x170
[ 2766.797380][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2766.797380][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2766.797380][   T73]      netlink_rcv_skb+0x130/0x360
[ 2766.797380][   T73]      netlink_unicast+0x449/0x710
[ 2766.797380][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2766.797380][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2766.797380][   T73]      ___sys_sendmsg+0xee/0x170
[ 2766.797380][   T73]      __sys_sendmsg+0xcd/0x170
[ 2766.797380][   T73]      do_syscall_64+0xc6/0x1e0
[ 2766.797380][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2766.797380][   T73] 
[ 2766.798923][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2766.798923][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2766.798923][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2766.798923][   T73]      ipv6_find_idev+0x102/0x170
[ 2766.798923][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2766.798923][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2766.798923][   T73]      netlink_rcv_skb+0x130/0x360
[ 2766.798923][   T73]      netlink_unicast+0x449/0x710
[ 2766.798923][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2766.798923][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2766.798923][   T73]      ___sys_sendmsg+0xee/0x170
[ 2766.798923][   T73]      __sys_sendmsg+0xcd/0x170
[ 2766.798923][   T73]      do_syscall_64+0xc6/0x1e0
[ 2766.798923][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2766.798923][   T73] 
[ 2766.800620][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2766.800902][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2766.800902][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2766.800902][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2766.800902][   T73]      fib6_nh_init+0xa22/0x1580
[ 2766.800902][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2766.800902][   T73]      ip6_route_add+0x1c/0x140
[ 2766.800902][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2766.800902][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2766.800902][   T73]      netlink_rcv_skb+0x130/0x360
[ 2766.800902][   T73]      netlink_unicast+0x449/0x710
[ 2766.800902][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2766.800902][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2766.800902][   T73]      ___sys_sendmsg+0xee/0x170
[ 2766.800902][   T73]      __sys_sendmsg+0xcd/0x170
[ 2766.800902][   T73]      do_syscall_64+0xc6/0x1e0
[ 2766.800902][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2766.800902][   T73] 
[ 2766.802981][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2766.802981][   T73]      dst_init+0x84/0x4a0
[ 2766.802981][   T73]      dst_alloc+0x97/0x150
[ 2766.802981][   T73]      ip6_dst_alloc+0x23/0x90
[ 2766.802981][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2766.802981][   T73]      ip6_pol_route+0x56f/0x840
[ 2766.802981][   T73]      fib6_rule_lookup+0x456/0x630
[ 2766.802981][   T73]      ip6_route_input+0x59c/0xa50
[ 2766.802981][   T73]      ipv6_rcv+0x397/0x810
[ 2766.802981][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2766.802981][   T73]      process_backlog+0x101/0x620
[ 2766.802981][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2766.802981][   T73]      net_rx_action+0x495/0xbe0
[ 2766.802981][   T73]      __do_softirq+0x1b5/0x7f6
[ 2766.802981][   T73] 
[ 2766.804816][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2766.804816][   T73]      netdev_get_by_index+0x5e/0x80
[ 2766.804816][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2766.804816][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2766.804816][   T73]      ip6_route_add+0x1c/0x140
[ 2766.804816][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2766.804816][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2766.804816][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2766.804816][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2766.804816][   T73]      netlink_rcv_skb+0x130/0x360
[ 2766.804816][   T73]      netlink_unicast+0x449/0x710
[ 2766.804816][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2766.804816][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2766.804816][   T73]      ___sys_sendmsg+0xee/0x170
[ 2766.804816][   T73]      __sys_sendmsg+0xcd/0x170
[ 2766.804816][   T73]      do_syscall_64+0xc6/0x1e0
[ 2766.804816][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2766.804816][   T73] 
[ 2766.807599][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2766.807599][   T73]      netdev_get_by_index+0x5e/0x80
[ 2766.807599][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2766.807599][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2766.807599][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2766.807599][   T73]      ipv6_add_addr+0x411/0x2000
[ 2766.807599][   T73]      inet6_addr_add+0x30e/0xa40
[ 2766.807599][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2766.807599][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2766.807599][   T73]      netlink_rcv_skb+0x130/0x360
[ 2766.807599][   T73]      netlink_unicast+0x449/0x710
[ 2766.807599][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2766.807599][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2766.807599][   T73]      ___sys_sendmsg+0xee/0x170
[ 2766.807599][   T73]      __sys_sendmsg+0xcd/0x170
[ 2766.807599][   T73]      do_syscall_64+0xc6/0x1e0
[ 2766.807599][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2766.807599][   T73] 
[ 2766.809900][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2766.809900][   T73]      netdev_get_by_index+0x5e/0x80
[ 2766.809900][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2766.809900][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2766.809900][   T73]      ip6_route_add+0x1c/0x140
[ 2766.809900][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2766.809900][   T73]      addrconf_add_dev+0xe2/0x170
[ 2766.809900][   T73]      inet6_addr_add+0x12f/0xa40
[ 2766.809900][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2766.809900][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2766.809900][   T73]      netlink_rcv_skb+0x130/0x360
[ 2766.809900][   T73]      netlink_unicast+0x449/0x710
[ 2766.809900][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2766.809900][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2766.809900][   T73]      ___sys_sendmsg+0xee/0x170
[ 2766.809900][   T73]      __sys_sendmsg+0xcd/0x170
[ 2766.809900][   T73]      do_syscall_64+0xc6/0x1e0
[ 2766.809900][   T73] 
[ 2766.812486][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2766.812486][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2766.812486][   T73]      ipv6_find_idev+0x102/0x170
[ 2766.812486][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2766.812486][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2766.812486][   T73]      netlink_rcv_skb+0x130/0x360
[ 2766.812486][   T73]      netlink_unicast+0x449/0x710
[ 2766.812486][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2766.812486][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2766.812486][   T73]      ___sys_sendmsg+0xee/0x170
[ 2766.812486][   T73]      __sys_sendmsg+0xcd/0x170
[ 2766.812486][   T73]      do_syscall_64+0xc6/0x1e0
[ 2766.812486][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2766.812486][   T73] 
[ 2766.814590][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2766.814590][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2766.814590][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2766.814590][   T73]      ipv6_find_idev+0x102/0x170
[ 2766.814590][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2766.814590][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2766.814590][   T73]      netlink_rcv_skb+0x130/0x360
[ 2766.814590][   T73]      netlink_unicast+0x449/0x710
[ 2766.814590][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2766.814590][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2766.814590][   T73]      ___sys_sendmsg+0xee/0x170
[ 2766.814590][   T73]      __sys_sendmsg+0xcd/0x170
[ 2766.814590][   T73]      do_syscall_64+0xc6/0x1e0
[ 2766.814590][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2766.814590][   T73] 
[ 2766.816539][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2766.817261][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2766.817261][   T73]      netdev_get_by_index+0x5e/0x80
[ 2766.817261][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2766.817261][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2766.817261][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2766.817261][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2766.817261][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2766.817261][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2766.817261][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2766.817261][   T73]      addrconf_dad_begin+0x310/0x670
[ 2766.817261][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2766.817261][   T73]      process_one_work+0x84d/0x18a0
[ 2766.817261][   T73]      worker_thread+0x587/0xd30
[ 2766.817261][   T73]      kthread+0x28a/0x350
[ 2766.817261][   T73]      ret_from_fork+0x31/0x70
[ 2766.817261][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2766.817261][   T73] 
[ 2766.819178][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2766.819178][   T73]      netdev_get_by_index+0x5e/0x80
[ 2766.819178][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2766.819178][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2766.819178][   T73]      ip6_route_add+0x1c/0x140
[ 2766.819178][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2766.819178][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2766.819178][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2766.819178][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2766.819178][   T73]      netlink_rcv_skb+0x130/0x360
[ 2766.819178][   T73]      netlink_unicast+0x449/0x710
[ 2766.819178][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2766.819178][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2766.819178][   T73]      ___sys_sendmsg+0xee/0x170
[ 2766.819178][   T73]      __sys_sendmsg+0xcd/0x170
[ 2766.819178][   T73]      do_syscall_64+0xc6/0x1e0
[ 2766.819178][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2766.819178][   T73] 
[ 2766.821305][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2766.821305][   T73]      netdev_get_by_index+0x5e/0x80
[ 2766.821305][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2766.821305][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2766.821305][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2766.821305][   T73]      ipv6_add_addr+0x411/0x2000
[ 2766.821305][   T73]      inet6_addr_add+0x30e/0xa40
[ 2766.821305][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2766.821305][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2766.821305][   T73]      netlink_rcv_skb+0x130/0x360
[ 2766.821305][   T73]      netlink_unicast+0x449/0x710
[ 2766.821305][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2766.821305][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2766.821305][   T73]      ___sys_sendmsg+0xee/0x170
[ 2766.821305][   T73]      __sys_sendmsg+0xcd/0x170
[ 2766.821305][   T73]      do_syscall_64+0xc6/0x1e0
[ 2766.821305][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2766.821305][   T73] 
[ 2766.823621][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2766.823621][   T73]      netdev_get_by_index+0x5e/0x80
[ 2766.823621][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2766.823621][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2766.823621][   T73]      ip6_route_add+0x1c/0x140
[ 2766.823621][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2766.823621][   T73]      addrconf_add_dev+0xe2/0x170
[ 2766.823621][   T73]      inet6_addr_add+0x12f/0xa40
[ 2766.823621][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2766.823621][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2766.823621][   T73]      netlink_rcv_skb+0x130/0x360
[ 2766.823621][   T73]      netlink_unicast+0x449/0x710
[ 2766.823621][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2766.823621][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2766.823621][   T73]      ___sys_sendmsg+0xee/0x170
[ 2766.823621][   T73]      __sys_sendmsg+0xcd/0x170
[ 2766.823621][   T73]      do_syscall_64+0xc6/0x1e0
[ 2766.823621][   T73] 
[ 2766.825775][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2766.825775][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2766.825775][   T73]      ipv6_find_idev+0x102/0x170
[ 2766.825775][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2766.825775][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2766.825775][   T73]      netlink_rcv_skb+0x130/0x360
[ 2766.825775][   T73]      netlink_unicast+0x449/0x710
[ 2766.825775][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2766.825775][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2766.825775][   T73]      ___sys_sendmsg+0xee/0x170
[ 2766.825775][   T73]      __sys_sendmsg+0xcd/0x170
[ 2766.825775][   T73]      do_syscall_64+0xc6/0x1e0
[ 2766.825775][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2766.825775][   T73] 
[ 2766.827503][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2766.827503][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2766.827503][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2766.827503][   T73]      ipv6_find_idev+0x102/0x170
[ 2766.827503][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2766.827503][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2766.827503][   T73]      netlink_rcv_skb+0x130/0x360
[ 2766.827503][   T73]      netlink_unicast+0x449/0x710
[ 2766.827503][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2766.827503][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2766.827503][   T73]      ___sys_sendmsg+0xee/0x170
[ 2766.827503][   T73]      __sys_sendmsg+0xcd/0x170
[ 2766.827503][   T73]      do_syscall_64+0xc6/0x1e0
[ 2766.827503][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2766.827503][   T73] 
[ 2777.071829][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2777.072290][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2777.072290][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2777.072290][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2777.072290][   T73]      fib6_nh_init+0xa22/0x1580
[ 2777.072290][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2777.072290][   T73]      ip6_route_add+0x1c/0x140
[ 2777.072290][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2777.072290][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2777.072290][   T73]      netlink_rcv_skb+0x130/0x360
[ 2777.072290][   T73]      netlink_unicast+0x449/0x710
[ 2777.072290][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2777.072290][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2777.072290][   T73]      ___sys_sendmsg+0xee/0x170
[ 2777.072290][   T73]      __sys_sendmsg+0xcd/0x170
[ 2777.072290][   T73]      do_syscall_64+0xc6/0x1e0
[ 2777.072290][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2777.072290][   T73] 
[ 2777.074209][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2777.074209][   T73]      dst_init+0x84/0x4a0
[ 2777.074209][   T73]      dst_alloc+0x97/0x150
[ 2777.074209][   T73]      ip6_dst_alloc+0x23/0x90
[ 2777.074209][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2777.074209][   T73]      ip6_pol_route+0x56f/0x840
[ 2777.074209][   T73]      fib6_rule_lookup+0x456/0x630
[ 2777.074209][   T73]      ip6_route_input+0x59c/0xa50
[ 2777.074209][   T73]      ipv6_rcv+0x397/0x810
[ 2777.074209][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2777.074209][   T73]      process_backlog+0x101/0x620
[ 2777.074209][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2777.074209][   T73]      net_rx_action+0x495/0xbe0
[ 2777.074209][   T73]      __do_softirq+0x1b5/0x7f6
[ 2777.074209][   T73] 
[ 2777.075866][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2777.075866][   T73]      netdev_get_by_index+0x5e/0x80
[ 2777.075866][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2777.075866][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2777.075866][   T73]      ip6_route_add+0x1c/0x140
[ 2777.075866][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2777.075866][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2777.075866][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2777.075866][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2777.075866][   T73]      netlink_rcv_skb+0x130/0x360
[ 2777.075866][   T73]      netlink_unicast+0x449/0x710
[ 2777.075866][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2777.075866][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2777.075866][   T73]      ___sys_sendmsg+0xee/0x170
[ 2777.075866][   T73]      __sys_sendmsg+0xcd/0x170
[ 2777.075866][   T73]      do_syscall_64+0xc6/0x1e0
[ 2777.075866][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2777.075866][   T73] 
[ 2777.077874][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2777.077874][   T73]      netdev_get_by_index+0x5e/0x80
[ 2777.077874][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2777.077874][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2777.077874][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2777.077874][   T73]      ipv6_add_addr+0x411/0x2000
[ 2777.077874][   T73]      inet6_addr_add+0x30e/0xa40
[ 2777.077874][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2777.077874][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2777.077874][   T73]      netlink_rcv_skb+0x130/0x360
[ 2777.077874][   T73]      netlink_unicast+0x449/0x710
[ 2777.077874][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2777.077874][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2777.077874][   T73]      ___sys_sendmsg+0xee/0x170
[ 2777.077874][   T73]      __sys_sendmsg+0xcd/0x170
[ 2777.077874][   T73]      do_syscall_64+0xc6/0x1e0
[ 2777.077874][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2777.077874][   T73] 
[ 2777.079892][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2777.079892][   T73]      netdev_get_by_index+0x5e/0x80
[ 2777.079892][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2777.079892][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2777.079892][   T73]      ip6_route_add+0x1c/0x140
[ 2777.079892][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2777.079892][   T73]      addrconf_add_dev+0xe2/0x170
[ 2777.079892][   T73]      inet6_addr_add+0x12f/0xa40
[ 2777.079892][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2777.079892][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2777.079892][   T73]      netlink_rcv_skb+0x130/0x360
[ 2777.079892][   T73]      netlink_unicast+0x449/0x710
[ 2777.079892][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2777.079892][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2777.079892][   T73]      ___sys_sendmsg+0xee/0x170
[ 2777.079892][   T73]      __sys_sendmsg+0xcd/0x170
[ 2777.079892][   T73]      do_syscall_64+0xc6/0x1e0
[ 2777.079892][   T73] 
[ 2777.082308][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2777.082308][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2777.082308][   T73]      ipv6_find_idev+0x102/0x170
[ 2777.082308][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2777.082308][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2777.082308][   T73]      netlink_rcv_skb+0x130/0x360
[ 2777.082308][   T73]      netlink_unicast+0x449/0x710
[ 2777.082308][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2777.082308][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2777.082308][   T73]      ___sys_sendmsg+0xee/0x170
[ 2777.082308][   T73]      __sys_sendmsg+0xcd/0x170
[ 2777.082308][   T73]      do_syscall_64+0xc6/0x1e0
[ 2777.082308][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2777.082308][   T73] 
[ 2777.083855][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2777.083855][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2777.083855][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2777.083855][   T73]      ipv6_find_idev+0x102/0x170
[ 2777.083855][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2777.083855][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2777.083855][   T73]      netlink_rcv_skb+0x130/0x360
[ 2777.083855][   T73]      netlink_unicast+0x449/0x710
[ 2777.083855][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2777.083855][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2777.083855][   T73]      ___sys_sendmsg+0xee/0x170
[ 2777.083855][   T73]      __sys_sendmsg+0xcd/0x170
[ 2777.083855][   T73]      do_syscall_64+0xc6/0x1e0
[ 2777.083855][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2777.083855][   T73] 
[ 2777.085585][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2777.085886][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2777.085886][   T73]      netdev_get_by_index+0x5e/0x80
[ 2777.085886][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2777.085886][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2777.085886][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2777.085886][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2777.085886][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2777.085886][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2777.085886][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2777.085886][   T73]      addrconf_dad_begin+0x310/0x670
[ 2777.085886][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2777.085886][   T73]      process_one_work+0x84d/0x18a0
[ 2777.085886][   T73]      worker_thread+0x587/0xd30
[ 2777.085886][   T73]      kthread+0x28a/0x350
[ 2777.085886][   T73]      ret_from_fork+0x31/0x70
[ 2777.085886][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2777.085886][   T73] 
[ 2777.087813][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2777.087813][   T73]      netdev_get_by_index+0x5e/0x80
[ 2777.087813][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2777.087813][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2777.087813][   T73]      ip6_route_add+0x1c/0x140
[ 2777.087813][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2777.087813][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2777.087813][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2777.087813][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2777.087813][   T73]      netlink_rcv_skb+0x130/0x360
[ 2777.087813][   T73]      netlink_unicast+0x449/0x710
[ 2777.087813][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2777.087813][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2777.087813][   T73]      ___sys_sendmsg+0xee/0x170
[ 2777.087813][   T73]      __sys_sendmsg+0xcd/0x170
[ 2777.087813][   T73]      do_syscall_64+0xc6/0x1e0
[ 2777.087813][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2777.087813][   T73] 
[ 2777.089829][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2777.089829][   T73]      netdev_get_by_index+0x5e/0x80
[ 2777.089829][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2777.089829][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2777.089829][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2777.089829][   T73]      ipv6_add_addr+0x411/0x2000
[ 2777.089829][   T73]      inet6_addr_add+0x30e/0xa40
[ 2777.089829][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2777.089829][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2777.089829][   T73]      netlink_rcv_skb+0x130/0x360
[ 2777.089829][   T73]      netlink_unicast+0x449/0x710
[ 2777.089829][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2777.089829][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2777.089829][   T73]      ___sys_sendmsg+0xee/0x170
[ 2777.089829][   T73]      __sys_sendmsg+0xcd/0x170
[ 2777.089829][   T73]      do_syscall_64+0xc6/0x1e0
[ 2777.089829][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2777.089829][   T73] 
[ 2777.091846][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2777.091846][   T73]      netdev_get_by_index+0x5e/0x80
[ 2777.091846][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2777.091846][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2777.091846][   T73]      ip6_route_add+0x1c/0x140
[ 2777.091846][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2777.091846][   T73]      addrconf_add_dev+0xe2/0x170
[ 2777.091846][   T73]      inet6_addr_add+0x12f/0xa40
[ 2777.091846][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2777.091846][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2777.091846][   T73]      netlink_rcv_skb+0x130/0x360
[ 2777.091846][   T73]      netlink_unicast+0x449/0x710
[ 2777.091846][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2777.091846][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2777.091846][   T73]      ___sys_sendmsg+0xee/0x170
[ 2777.091846][   T73]      __sys_sendmsg+0xcd/0x170
[ 2777.091846][   T73]      do_syscall_64+0xc6/0x1e0
[ 2777.091846][   T73] 
[ 2777.093837][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2777.093837][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2777.093837][   T73]      ipv6_find_idev+0x102/0x170
[ 2777.093837][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2777.093837][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2777.093837][   T73]      netlink_rcv_skb+0x130/0x360
[ 2777.093837][   T73]      netlink_unicast+0x449/0x710
[ 2777.093837][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2777.093837][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2777.093837][   T73]      ___sys_sendmsg+0xee/0x170
[ 2777.093837][   T73]      __sys_sendmsg+0xcd/0x170
[ 2777.093837][   T73]      do_syscall_64+0xc6/0x1e0
[ 2777.093837][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2777.093837][   T73] 
[ 2777.095596][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2777.095596][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2777.095596][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2777.095596][   T73]      ipv6_find_idev+0x102/0x170
[ 2777.095596][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2777.095596][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2777.095596][   T73]      netlink_rcv_skb+0x130/0x360
[ 2777.095596][   T73]      netlink_unicast+0x449/0x710
[ 2777.095596][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2777.095596][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2777.095596][   T73]      ___sys_sendmsg+0xee/0x170
[ 2777.095596][   T73]      __sys_sendmsg+0xcd/0x170
[ 2777.095596][   T73]      do_syscall_64+0xc6/0x1e0
[ 2777.095596][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2777.095596][   T73] 
[ 2777.097321][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2777.097614][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2777.097614][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2777.097614][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2777.097614][   T73]      fib6_nh_init+0xa22/0x1580
[ 2777.097614][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2777.097614][   T73]      ip6_route_add+0x1c/0x140
[ 2777.097614][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2777.097614][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2777.097614][   T73]      netlink_rcv_skb+0x130/0x360
[ 2777.097614][   T73]      netlink_unicast+0x449/0x710
[ 2777.097614][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2777.097614][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2777.097614][   T73]      ___sys_sendmsg+0xee/0x170
[ 2777.097614][   T73]      __sys_sendmsg+0xcd/0x170
[ 2777.097614][   T73]      do_syscall_64+0xc6/0x1e0
[ 2777.097614][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2777.097614][   T73] 
[ 2777.099690][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2777.099690][   T73]      dst_init+0x84/0x4a0
[ 2777.099690][   T73]      dst_alloc+0x97/0x150
[ 2777.099690][   T73]      ip6_dst_alloc+0x23/0x90
[ 2777.099690][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2777.099690][   T73]      ip6_pol_route+0x56f/0x840
[ 2777.099690][   T73]      fib6_rule_lookup+0x456/0x630
[ 2777.099690][   T73]      ip6_route_input+0x59c/0xa50
[ 2777.099690][   T73]      ipv6_rcv+0x397/0x810
[ 2777.099690][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2777.099690][   T73]      process_backlog+0x101/0x620
[ 2777.099690][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2777.099690][   T73]      net_rx_action+0x495/0xbe0
[ 2777.099690][   T73]      __do_softirq+0x1b5/0x7f6
[ 2777.099690][   T73] 
[ 2777.101579][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2777.101579][   T73]      netdev_get_by_index+0x5e/0x80
[ 2777.101579][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2777.101579][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2777.101579][   T73]      ip6_route_add+0x1c/0x140
[ 2777.101579][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2777.101579][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2777.101579][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2777.101579][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2777.101579][   T73]      netlink_rcv_skb+0x130/0x360
[ 2777.101579][   T73]      netlink_unicast+0x449/0x710
[ 2777.101579][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2777.101579][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2777.101579][   T73]      ___sys_sendmsg+0xee/0x170
[ 2777.101579][   T73]      __sys_sendmsg+0xcd/0x170
[ 2777.101579][   T73]      do_syscall_64+0xc6/0x1e0
[ 2777.101579][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2777.101579][   T73] 
[ 2777.103844][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2777.103844][   T73]      netdev_get_by_index+0x5e/0x80
[ 2777.103844][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2777.103844][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2777.103844][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2777.103844][   T73]      ipv6_add_addr+0x411/0x2000
[ 2777.103844][   T73]      inet6_addr_add+0x30e/0xa40
[ 2777.103844][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2777.103844][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2777.103844][   T73]      netlink_rcv_skb+0x130/0x360
[ 2777.103844][   T73]      netlink_unicast+0x449/0x710
[ 2777.103844][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2777.103844][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2777.103844][   T73]      ___sys_sendmsg+0xee/0x170
[ 2777.103844][   T73]      __sys_sendmsg+0xcd/0x170
[ 2777.103844][   T73]      do_syscall_64+0xc6/0x1e0
[ 2777.103844][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2777.103844][   T73] 
[ 2777.106104][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2777.106104][   T73]      netdev_get_by_index+0x5e/0x80
[ 2777.106104][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2777.106104][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2777.106104][   T73]      ip6_route_add+0x1c/0x140
[ 2777.106104][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2777.106104][   T73]      addrconf_add_dev+0xe2/0x170
[ 2777.106104][   T73]      inet6_addr_add+0x12f/0xa40
[ 2777.106104][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2777.106104][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2777.106104][   T73]      netlink_rcv_skb+0x130/0x360
[ 2777.106104][   T73]      netlink_unicast+0x449/0x710
[ 2777.106104][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2777.106104][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2777.106104][   T73]      ___sys_sendmsg+0xee/0x170
[ 2777.106104][   T73]      __sys_sendmsg+0xcd/0x170
[ 2777.106104][   T73]      do_syscall_64+0xc6/0x1e0
[ 2777.106104][   T73] 
[ 2777.108260][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2777.108260][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2777.108260][   T73]      ipv6_find_idev+0x102/0x170
[ 2777.108260][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2777.108260][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2777.108260][   T73]      netlink_rcv_skb+0x130/0x360
[ 2777.108260][   T73]      netlink_unicast+0x449/0x710
[ 2777.108260][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2777.108260][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2777.108260][   T73]      ___sys_sendmsg+0xee/0x170
[ 2777.108260][   T73]      __sys_sendmsg+0xcd/0x170
[ 2777.108260][   T73]      do_syscall_64+0xc6/0x1e0
[ 2777.108260][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2777.108260][   T73] 
[ 2777.110048][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2777.110048][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2777.110048][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2777.110048][   T73]      ipv6_find_idev+0x102/0x170
[ 2777.110048][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2777.110048][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2777.110048][   T73]      netlink_rcv_skb+0x130/0x360
[ 2777.110048][   T73]      netlink_unicast+0x449/0x710
[ 2777.110048][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2777.110048][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2777.110048][   T73]      ___sys_sendmsg+0xee/0x170
[ 2777.110048][   T73]      __sys_sendmsg+0xcd/0x170
[ 2777.110048][   T73]      do_syscall_64+0xc6/0x1e0
[ 2777.110048][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2777.110048][   T73] 
[ 2777.112011][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2777.112294][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2777.112294][   T73]      netdev_get_by_index+0x5e/0x80
[ 2777.112294][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2777.112294][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2777.112294][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2777.112294][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2777.112294][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2777.112294][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2777.112294][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2777.112294][   T73]      addrconf_dad_begin+0x310/0x670
[ 2777.112294][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2777.112294][   T73]      process_one_work+0x84d/0x18a0
[ 2777.112294][   T73]      worker_thread+0x587/0xd30
[ 2777.112294][   T73]      kthread+0x28a/0x350
[ 2777.112294][   T73]      ret_from_fork+0x31/0x70
[ 2777.112294][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2777.112294][   T73] 
[ 2777.114462][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2777.114462][   T73]      netdev_get_by_index+0x5e/0x80
[ 2777.114462][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2777.114462][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2777.114462][   T73]      ip6_route_add+0x1c/0x140
[ 2777.114462][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2777.114462][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2777.114462][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2777.114462][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2777.114462][   T73]      netlink_rcv_skb+0x130/0x360
[ 2777.114462][   T73]      netlink_unicast+0x449/0x710
[ 2777.114462][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2777.114462][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2777.114462][   T73]      ___sys_sendmsg+0xee/0x170
[ 2777.114462][   T73]      __sys_sendmsg+0xcd/0x170
[ 2777.114462][   T73]      do_syscall_64+0xc6/0x1e0
[ 2777.114462][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2777.114462][   T73] 
[ 2777.116717][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2777.116717][   T73]      netdev_get_by_index+0x5e/0x80
[ 2777.116717][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2777.116717][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2777.116717][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2777.116717][   T73]      ipv6_add_addr+0x411/0x2000
[ 2777.116717][   T73]      inet6_addr_add+0x30e/0xa40
[ 2777.116717][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2777.116717][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2777.116717][   T73]      netlink_rcv_skb+0x130/0x360
[ 2777.116717][   T73]      netlink_unicast+0x449/0x710
[ 2777.116717][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2777.116717][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2777.116717][   T73]      ___sys_sendmsg+0xee/0x170
[ 2777.116717][   T73]      __sys_sendmsg+0xcd/0x170
[ 2777.116717][   T73]      do_syscall_64+0xc6/0x1e0
[ 2777.116717][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2777.116717][   T73] 
[ 2777.118907][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2777.118907][   T73]      netdev_get_by_index+0x5e/0x80
[ 2777.118907][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2777.118907][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2777.118907][   T73]      ip6_route_add+0x1c/0x140
[ 2777.118907][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2777.118907][   T73]      addrconf_add_dev+0xe2/0x170
[ 2777.118907][   T73]      inet6_addr_add+0x12f/0xa40
[ 2777.118907][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2777.118907][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2777.118907][   T73]      netlink_rcv_skb+0x130/0x360
[ 2777.118907][   T73]      netlink_unicast+0x449/0x710
[ 2777.118907][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2777.118907][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2777.118907][   T73]      ___sys_sendmsg+0xee/0x170
[ 2777.118907][   T73]      __sys_sendmsg+0xcd/0x170
[ 2777.118907][   T73]      do_syscall_64+0xc6/0x1e0
[ 2777.118907][   T73] 
[ 2777.121183][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2777.121183][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2777.121183][   T73]      ipv6_find_idev+0x102/0x170
[ 2777.121183][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2777.121183][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2777.121183][   T73]      netlink_rcv_skb+0x130/0x360
[ 2777.121183][   T73]      netlink_unicast+0x449/0x710
[ 2777.121183][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2777.121183][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2777.121183][   T73]      ___sys_sendmsg+0xee/0x170
[ 2777.121183][   T73]      __sys_sendmsg+0xcd/0x170
[ 2777.121183][   T73]      do_syscall_64+0xc6/0x1e0
[ 2777.121183][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2777.121183][   T73] 
[ 2777.122930][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2777.122930][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2777.122930][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2777.122930][   T73]      ipv6_find_idev+0x102/0x170
[ 2777.122930][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2777.122930][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2777.122930][   T73]      netlink_rcv_skb+0x130/0x360
[ 2777.122930][   T73]      netlink_unicast+0x449/0x710
[ 2777.122930][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2777.122930][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2777.122930][   T73]      ___sys_sendmsg+0xee/0x170
[ 2777.122930][   T73]      __sys_sendmsg+0xcd/0x170
[ 2777.122930][   T73]      do_syscall_64+0xc6/0x1e0
[ 2777.122930][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2777.122930][   T73] 
[ 2787.143696][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2787.144133][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2787.144133][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2787.144133][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2787.144133][   T73]      fib6_nh_init+0xa22/0x1580
[ 2787.144133][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2787.144133][   T73]      ip6_route_add+0x1c/0x140
[ 2787.144133][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2787.144133][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2787.144133][   T73]      netlink_rcv_skb+0x130/0x360
[ 2787.144133][   T73]      netlink_unicast+0x449/0x710
[ 2787.144133][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2787.144133][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2787.144133][   T73]      ___sys_sendmsg+0xee/0x170
[ 2787.144133][   T73]      __sys_sendmsg+0xcd/0x170
[ 2787.144133][   T73]      do_syscall_64+0xc6/0x1e0
[ 2787.144133][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2787.144133][   T73] 
[ 2787.146272][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2787.146272][   T73]      dst_init+0x84/0x4a0
[ 2787.146272][   T73]      dst_alloc+0x97/0x150
[ 2787.146272][   T73]      ip6_dst_alloc+0x23/0x90
[ 2787.146272][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2787.146272][   T73]      ip6_pol_route+0x56f/0x840
[ 2787.146272][   T73]      fib6_rule_lookup+0x456/0x630
[ 2787.146272][   T73]      ip6_route_input+0x59c/0xa50
[ 2787.146272][   T73]      ipv6_rcv+0x397/0x810
[ 2787.146272][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2787.146272][   T73]      process_backlog+0x101/0x620
[ 2787.146272][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2787.146272][   T73]      net_rx_action+0x495/0xbe0
[ 2787.146272][   T73]      __do_softirq+0x1b5/0x7f6
[ 2787.146272][   T73] 
[ 2787.148116][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2787.148116][   T73]      netdev_get_by_index+0x5e/0x80
[ 2787.148116][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2787.148116][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2787.148116][   T73]      ip6_route_add+0x1c/0x140
[ 2787.148116][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2787.148116][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2787.148116][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2787.148116][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2787.148116][   T73]      netlink_rcv_skb+0x130/0x360
[ 2787.148116][   T73]      netlink_unicast+0x449/0x710
[ 2787.148116][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2787.148116][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2787.148116][   T73]      ___sys_sendmsg+0xee/0x170
[ 2787.148116][   T73]      __sys_sendmsg+0xcd/0x170
[ 2787.148116][   T73]      do_syscall_64+0xc6/0x1e0
[ 2787.148116][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2787.148116][   T73] 
[ 2787.150362][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2787.150362][   T73]      netdev_get_by_index+0x5e/0x80
[ 2787.150362][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2787.150362][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2787.150362][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2787.150362][   T73]      ipv6_add_addr+0x411/0x2000
[ 2787.150362][   T73]      inet6_addr_add+0x30e/0xa40
[ 2787.150362][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2787.150362][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2787.150362][   T73]      netlink_rcv_skb+0x130/0x360
[ 2787.150362][   T73]      netlink_unicast+0x449/0x710
[ 2787.150362][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2787.150362][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2787.150362][   T73]      ___sys_sendmsg+0xee/0x170
[ 2787.150362][   T73]      __sys_sendmsg+0xcd/0x170
[ 2787.150362][   T73]      do_syscall_64+0xc6/0x1e0
[ 2787.150362][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2787.150362][   T73] 
[ 2787.152600][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2787.152600][   T73]      netdev_get_by_index+0x5e/0x80
[ 2787.152600][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2787.152600][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2787.152600][   T73]      ip6_route_add+0x1c/0x140
[ 2787.152600][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2787.152600][   T73]      addrconf_add_dev+0xe2/0x170
[ 2787.152600][   T73]      inet6_addr_add+0x12f/0xa40
[ 2787.152600][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2787.152600][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2787.152600][   T73]      netlink_rcv_skb+0x130/0x360
[ 2787.152600][   T73]      netlink_unicast+0x449/0x710
[ 2787.152600][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2787.152600][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2787.152600][   T73]      ___sys_sendmsg+0xee/0x170
[ 2787.152600][   T73]      __sys_sendmsg+0xcd/0x170
[ 2787.152600][   T73]      do_syscall_64+0xc6/0x1e0
[ 2787.152600][   T73] 
[ 2787.154798][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2787.154798][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2787.154798][   T73]      ipv6_find_idev+0x102/0x170
[ 2787.154798][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2787.154798][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2787.154798][   T73]      netlink_rcv_skb+0x130/0x360
[ 2787.154798][   T73]      netlink_unicast+0x449/0x710
[ 2787.154798][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2787.154798][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2787.154798][   T73]      ___sys_sendmsg+0xee/0x170
[ 2787.154798][   T73]      __sys_sendmsg+0xcd/0x170
[ 2787.154798][   T73]      do_syscall_64+0xc6/0x1e0
[ 2787.154798][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2787.154798][   T73] 
[ 2787.156516][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2787.156516][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2787.156516][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2787.156516][   T73]      ipv6_find_idev+0x102/0x170
[ 2787.156516][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2787.156516][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2787.156516][   T73]      netlink_rcv_skb+0x130/0x360
[ 2787.156516][   T73]      netlink_unicast+0x449/0x710
[ 2787.156516][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2787.156516][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2787.156516][   T73]      ___sys_sendmsg+0xee/0x170
[ 2787.156516][   T73]      __sys_sendmsg+0xcd/0x170
[ 2787.156516][   T73]      do_syscall_64+0xc6/0x1e0
[ 2787.156516][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2787.156516][   T73] 
[ 2787.158400][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2787.158722][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2787.158722][   T73]      netdev_get_by_index+0x5e/0x80
[ 2787.158722][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2787.158722][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2787.158722][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2787.158722][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2787.158722][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2787.158722][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2787.158722][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2787.158722][   T73]      addrconf_dad_begin+0x310/0x670
[ 2787.158722][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2787.158722][   T73]      process_one_work+0x84d/0x18a0
[ 2787.158722][   T73]      worker_thread+0x587/0xd30
[ 2787.158722][   T73]      kthread+0x28a/0x350
[ 2787.158722][   T73]      ret_from_fork+0x31/0x70
[ 2787.158722][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2787.158722][   T73] 
[ 2787.160869][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2787.160869][   T73]      netdev_get_by_index+0x5e/0x80
[ 2787.160869][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2787.160869][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2787.160869][   T73]      ip6_route_add+0x1c/0x140
[ 2787.160869][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2787.160869][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2787.160869][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2787.160869][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2787.160869][   T73]      netlink_rcv_skb+0x130/0x360
[ 2787.160869][   T73]      netlink_unicast+0x449/0x710
[ 2787.160869][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2787.160869][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2787.160869][   T73]      ___sys_sendmsg+0xee/0x170
[ 2787.160869][   T73]      __sys_sendmsg+0xcd/0x170
[ 2787.160869][   T73]      do_syscall_64+0xc6/0x1e0
[ 2787.160869][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2787.160869][   T73] 
[ 2787.163105][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2787.163105][   T73]      netdev_get_by_index+0x5e/0x80
[ 2787.163105][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2787.163105][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2787.163105][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2787.163105][   T73]      ipv6_add_addr+0x411/0x2000
[ 2787.163105][   T73]      inet6_addr_add+0x30e/0xa40
[ 2787.163105][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2787.163105][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2787.163105][   T73]      netlink_rcv_skb+0x130/0x360
[ 2787.163105][   T73]      netlink_unicast+0x449/0x710
[ 2787.163105][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2787.163105][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2787.163105][   T73]      ___sys_sendmsg+0xee/0x170
[ 2787.163105][   T73]      __sys_sendmsg+0xcd/0x170
[ 2787.163105][   T73]      do_syscall_64+0xc6/0x1e0
[ 2787.163105][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2787.163105][   T73] 
[ 2787.165329][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2787.165329][   T73]      netdev_get_by_index+0x5e/0x80
[ 2787.165329][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2787.165329][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2787.165329][   T73]      ip6_route_add+0x1c/0x140
[ 2787.165329][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2787.165329][   T73]      addrconf_add_dev+0xe2/0x170
[ 2787.165329][   T73]      inet6_addr_add+0x12f/0xa40
[ 2787.165329][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2787.165329][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2787.165329][   T73]      netlink_rcv_skb+0x130/0x360
[ 2787.165329][   T73]      netlink_unicast+0x449/0x710
[ 2787.165329][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2787.165329][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2787.165329][   T73]      ___sys_sendmsg+0xee/0x170
[ 2787.165329][   T73]      __sys_sendmsg+0xcd/0x170
[ 2787.165329][   T73]      do_syscall_64+0xc6/0x1e0
[ 2787.165329][   T73] 
[ 2787.167560][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2787.167560][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2787.167560][   T73]      ipv6_find_idev+0x102/0x170
[ 2787.167560][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2787.167560][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2787.167560][   T73]      netlink_rcv_skb+0x130/0x360
[ 2787.167560][   T73]      netlink_unicast+0x449/0x710
[ 2787.167560][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2787.167560][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2787.167560][   T73]      ___sys_sendmsg+0xee/0x170
[ 2787.167560][   T73]      __sys_sendmsg+0xcd/0x170
[ 2787.167560][   T73]      do_syscall_64+0xc6/0x1e0
[ 2787.167560][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2787.167560][   T73] 
[ 2787.169269][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2787.169269][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2787.169269][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2787.169269][   T73]      ipv6_find_idev+0x102/0x170
[ 2787.169269][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2787.169269][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2787.169269][   T73]      netlink_rcv_skb+0x130/0x360
[ 2787.169269][   T73]      netlink_unicast+0x449/0x710
[ 2787.169269][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2787.169269][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2787.169269][   T73]      ___sys_sendmsg+0xee/0x170
[ 2787.169269][   T73]      __sys_sendmsg+0xcd/0x170
[ 2787.169269][   T73]      do_syscall_64+0xc6/0x1e0
[ 2787.169269][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2787.169269][   T73] 
[ 2787.171135][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2787.171425][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2787.171425][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2787.171425][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2787.171425][   T73]      fib6_nh_init+0xa22/0x1580
[ 2787.171425][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2787.171425][   T73]      ip6_route_add+0x1c/0x140
[ 2787.171425][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2787.171425][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2787.171425][   T73]      netlink_rcv_skb+0x130/0x360
[ 2787.171425][   T73]      netlink_unicast+0x449/0x710
[ 2787.171425][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2787.171425][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2787.171425][   T73]      ___sys_sendmsg+0xee/0x170
[ 2787.171425][   T73]      __sys_sendmsg+0xcd/0x170
[ 2787.171425][   T73]      do_syscall_64+0xc6/0x1e0
[ 2787.171425][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2787.171425][   T73] 
[ 2787.173725][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2787.173725][   T73]      dst_init+0x84/0x4a0
[ 2787.173725][   T73]      dst_alloc+0x97/0x150
[ 2787.173725][   T73]      ip6_dst_alloc+0x23/0x90
[ 2787.173725][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2787.173725][   T73]      ip6_pol_route+0x56f/0x840
[ 2787.173725][   T73]      fib6_rule_lookup+0x456/0x630
[ 2787.173725][   T73]      ip6_route_input+0x59c/0xa50
[ 2787.173725][   T73]      ipv6_rcv+0x397/0x810
[ 2787.173725][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2787.173725][   T73]      process_backlog+0x101/0x620
[ 2787.173725][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2787.173725][   T73]      net_rx_action+0x495/0xbe0
[ 2787.173725][   T73]      __do_softirq+0x1b5/0x7f6
[ 2787.173725][   T73] 
[ 2787.175749][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2787.175749][   T73]      netdev_get_by_index+0x5e/0x80
[ 2787.175749][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2787.175749][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2787.175749][   T73]      ip6_route_add+0x1c/0x140
[ 2787.175749][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2787.175749][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2787.175749][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2787.175749][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2787.175749][   T73]      netlink_rcv_skb+0x130/0x360
[ 2787.175749][   T73]      netlink_unicast+0x449/0x710
[ 2787.175749][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2787.175749][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2787.175749][   T73]      ___sys_sendmsg+0xee/0x170
[ 2787.175749][   T73]      __sys_sendmsg+0xcd/0x170
[ 2787.175749][   T73]      do_syscall_64+0xc6/0x1e0
[ 2787.175749][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2787.175749][   T73] 
[ 2787.178194][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2787.178194][   T73]      netdev_get_by_index+0x5e/0x80
[ 2787.178194][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2787.178194][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2787.178194][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2787.178194][   T73]      ipv6_add_addr+0x411/0x2000
[ 2787.178194][   T73]      inet6_addr_add+0x30e/0xa40
[ 2787.178194][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2787.178194][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2787.178194][   T73]      netlink_rcv_skb+0x130/0x360
[ 2787.178194][   T73]      netlink_unicast+0x449/0x710
[ 2787.178194][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2787.178194][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2787.178194][   T73]      ___sys_sendmsg+0xee/0x170
[ 2787.178194][   T73]      __sys_sendmsg+0xcd/0x170
[ 2787.178194][   T73]      do_syscall_64+0xc6/0x1e0
[ 2787.178194][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2787.178194][   T73] 
[ 2787.180739][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2787.180739][   T73]      netdev_get_by_index+0x5e/0x80
[ 2787.180739][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2787.180739][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2787.180739][   T73]      ip6_route_add+0x1c/0x140
[ 2787.180739][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2787.180739][   T73]      addrconf_add_dev+0xe2/0x170
[ 2787.180739][   T73]      inet6_addr_add+0x12f/0xa40
[ 2787.180739][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2787.180739][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2787.180739][   T73]      netlink_rcv_skb+0x130/0x360
[ 2787.180739][   T73]      netlink_unicast+0x449/0x710
[ 2787.180739][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2787.180739][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2787.180739][   T73]      ___sys_sendmsg+0xee/0x170
[ 2787.180739][   T73]      __sys_sendmsg+0xcd/0x170
[ 2787.180739][   T73]      do_syscall_64+0xc6/0x1e0
[ 2787.180739][   T73] 
[ 2787.183184][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2787.183184][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2787.183184][   T73]      ipv6_find_idev+0x102/0x170
[ 2787.183184][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2787.183184][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2787.183184][   T73]      netlink_rcv_skb+0x130/0x360
[ 2787.183184][   T73]      netlink_unicast+0x449/0x710
[ 2787.183184][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2787.183184][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2787.183184][   T73]      ___sys_sendmsg+0xee/0x170
[ 2787.183184][   T73]      __sys_sendmsg+0xcd/0x170
[ 2787.183184][   T73]      do_syscall_64+0xc6/0x1e0
[ 2787.183184][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2787.183184][   T73] 
[ 2787.185086][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2787.185086][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2787.185086][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2787.185086][   T73]      ipv6_find_idev+0x102/0x170
[ 2787.185086][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2787.185086][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2787.185086][   T73]      netlink_rcv_skb+0x130/0x360
[ 2787.185086][   T73]      netlink_unicast+0x449/0x710
[ 2787.185086][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2787.185086][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2787.185086][   T73]      ___sys_sendmsg+0xee/0x170
[ 2787.185086][   T73]      __sys_sendmsg+0xcd/0x170
[ 2787.185086][   T73]      do_syscall_64+0xc6/0x1e0
[ 2787.185086][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2787.185086][   T73] 
[ 2787.187151][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2787.187517][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2787.187517][   T73]      netdev_get_by_index+0x5e/0x80
[ 2787.187517][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2787.187517][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2787.187517][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2787.187517][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2787.187517][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2787.187517][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2787.187517][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2787.187517][   T73]      addrconf_dad_begin+0x310/0x670
[ 2787.187517][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2787.187517][   T73]      process_one_work+0x84d/0x18a0
[ 2787.187517][   T73]      worker_thread+0x587/0xd30
[ 2787.187517][   T73]      kthread+0x28a/0x350
[ 2787.187517][   T73]      ret_from_fork+0x31/0x70
[ 2787.187517][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2787.187517][   T73] 
[ 2787.189783][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2787.189783][   T73]      netdev_get_by_index+0x5e/0x80
[ 2787.189783][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2787.189783][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2787.189783][   T73]      ip6_route_add+0x1c/0x140
[ 2787.189783][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2787.189783][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2787.189783][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2787.189783][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2787.189783][   T73]      netlink_rcv_skb+0x130/0x360
[ 2787.189783][   T73]      netlink_unicast+0x449/0x710
[ 2787.189783][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2787.189783][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2787.189783][   T73]      ___sys_sendmsg+0xee/0x170
[ 2787.189783][   T73]      __sys_sendmsg+0xcd/0x170
[ 2787.189783][   T73]      do_syscall_64+0xc6/0x1e0
[ 2787.189783][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2787.189783][   T73] 
[ 2787.192337][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2787.192337][   T73]      netdev_get_by_index+0x5e/0x80
[ 2787.192337][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2787.192337][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2787.192337][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2787.192337][   T73]      ipv6_add_addr+0x411/0x2000
[ 2787.192337][   T73]      inet6_addr_add+0x30e/0xa40
[ 2787.192337][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2787.192337][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2787.192337][   T73]      netlink_rcv_skb+0x130/0x360
[ 2787.192337][   T73]      netlink_unicast+0x449/0x710
[ 2787.192337][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2787.192337][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2787.192337][   T73]      ___sys_sendmsg+0xee/0x170
[ 2787.192337][   T73]      __sys_sendmsg+0xcd/0x170
[ 2787.192337][   T73]      do_syscall_64+0xc6/0x1e0
[ 2787.192337][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2787.192337][   T73] 
[ 2787.194823][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2787.194823][   T73]      netdev_get_by_index+0x5e/0x80
[ 2787.194823][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2787.194823][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2787.194823][   T73]      ip6_route_add+0x1c/0x140
[ 2787.194823][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2787.194823][   T73]      addrconf_add_dev+0xe2/0x170
[ 2787.194823][   T73]      inet6_addr_add+0x12f/0xa40
[ 2787.194823][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2787.194823][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2787.194823][   T73]      netlink_rcv_skb+0x130/0x360
[ 2787.194823][   T73]      netlink_unicast+0x449/0x710
[ 2787.194823][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2787.194823][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2787.194823][   T73]      ___sys_sendmsg+0xee/0x170
[ 2787.194823][   T73]      __sys_sendmsg+0xcd/0x170
[ 2787.194823][   T73]      do_syscall_64+0xc6/0x1e0
[ 2787.194823][   T73] 
[ 2787.197275][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2787.197275][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2787.197275][   T73]      ipv6_find_idev+0x102/0x170
[ 2787.197275][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2787.197275][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2787.197275][   T73]      netlink_rcv_skb+0x130/0x360
[ 2787.197275][   T73]      netlink_unicast+0x449/0x710
[ 2787.197275][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2787.197275][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2787.197275][   T73]      ___sys_sendmsg+0xee/0x170
[ 2787.197275][   T73]      __sys_sendmsg+0xcd/0x170
[ 2787.197275][   T73]      do_syscall_64+0xc6/0x1e0
[ 2787.197275][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2787.197275][   T73] 
[ 2787.199180][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2787.199180][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2787.199180][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2787.199180][   T73]      ipv6_find_idev+0x102/0x170
[ 2787.199180][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2787.199180][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2787.199180][   T73]      netlink_rcv_skb+0x130/0x360
[ 2787.199180][   T73]      netlink_unicast+0x449/0x710
[ 2787.199180][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2787.199180][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2787.199180][   T73]      ___sys_sendmsg+0xee/0x170
[ 2787.199180][   T73]      __sys_sendmsg+0xcd/0x170
[ 2787.199180][   T73]      do_syscall_64+0xc6/0x1e0
[ 2787.199180][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2787.199180][   T73] 
[ 2797.223767][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2797.224191][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2797.224191][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2797.224191][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2797.224191][   T73]      fib6_nh_init+0xa22/0x1580
[ 2797.224191][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2797.224191][   T73]      ip6_route_add+0x1c/0x140
[ 2797.224191][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2797.224191][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2797.224191][   T73]      netlink_rcv_skb+0x130/0x360
[ 2797.224191][   T73]      netlink_unicast+0x449/0x710
[ 2797.224191][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2797.224191][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2797.224191][   T73]      ___sys_sendmsg+0xee/0x170
[ 2797.224191][   T73]      __sys_sendmsg+0xcd/0x170
[ 2797.224191][   T73]      do_syscall_64+0xc6/0x1e0
[ 2797.224191][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2797.224191][   T73] 
[ 2797.226336][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2797.226336][   T73]      dst_init+0x84/0x4a0
[ 2797.226336][   T73]      dst_alloc+0x97/0x150
[ 2797.226336][   T73]      ip6_dst_alloc+0x23/0x90
[ 2797.226336][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2797.226336][   T73]      ip6_pol_route+0x56f/0x840
[ 2797.226336][   T73]      fib6_rule_lookup+0x456/0x630
[ 2797.226336][   T73]      ip6_route_input+0x59c/0xa50
[ 2797.226336][   T73]      ipv6_rcv+0x397/0x810
[ 2797.226336][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2797.226336][   T73]      process_backlog+0x101/0x620
[ 2797.226336][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2797.226336][   T73]      net_rx_action+0x495/0xbe0
[ 2797.226336][   T73]      __do_softirq+0x1b5/0x7f6
[ 2797.226336][   T73] 
[ 2797.228215][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2797.228215][   T73]      netdev_get_by_index+0x5e/0x80
[ 2797.228215][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2797.228215][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2797.228215][   T73]      ip6_route_add+0x1c/0x140
[ 2797.228215][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2797.228215][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2797.228215][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2797.228215][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2797.228215][   T73]      netlink_rcv_skb+0x130/0x360
[ 2797.228215][   T73]      netlink_unicast+0x449/0x710
[ 2797.228215][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2797.228215][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2797.228215][   T73]      ___sys_sendmsg+0xee/0x170
[ 2797.228215][   T73]      __sys_sendmsg+0xcd/0x170
[ 2797.228215][   T73]      do_syscall_64+0xc6/0x1e0
[ 2797.228215][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2797.228215][   T73] 
[ 2797.230483][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2797.230483][   T73]      netdev_get_by_index+0x5e/0x80
[ 2797.230483][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2797.230483][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2797.230483][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2797.230483][   T73]      ipv6_add_addr+0x411/0x2000
[ 2797.230483][   T73]      inet6_addr_add+0x30e/0xa40
[ 2797.230483][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2797.230483][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2797.230483][   T73]      netlink_rcv_skb+0x130/0x360
[ 2797.230483][   T73]      netlink_unicast+0x449/0x710
[ 2797.230483][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2797.230483][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2797.230483][   T73]      ___sys_sendmsg+0xee/0x170
[ 2797.230483][   T73]      __sys_sendmsg+0xcd/0x170
[ 2797.230483][   T73]      do_syscall_64+0xc6/0x1e0
[ 2797.230483][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2797.230483][   T73] 
[ 2797.232742][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2797.232742][   T73]      netdev_get_by_index+0x5e/0x80
[ 2797.232742][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2797.232742][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2797.232742][   T73]      ip6_route_add+0x1c/0x140
[ 2797.232742][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2797.232742][   T73]      addrconf_add_dev+0xe2/0x170
[ 2797.232742][   T73]      inet6_addr_add+0x12f/0xa40
[ 2797.232742][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2797.232742][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2797.232742][   T73]      netlink_rcv_skb+0x130/0x360
[ 2797.232742][   T73]      netlink_unicast+0x449/0x710
[ 2797.232742][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2797.232742][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2797.232742][   T73]      ___sys_sendmsg+0xee/0x170
[ 2797.232742][   T73]      __sys_sendmsg+0xcd/0x170
[ 2797.232742][   T73]      do_syscall_64+0xc6/0x1e0
[ 2797.232742][   T73] 
[ 2797.234954][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2797.234954][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2797.234954][   T73]      ipv6_find_idev+0x102/0x170
[ 2797.234954][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2797.234954][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2797.234954][   T73]      netlink_rcv_skb+0x130/0x360
[ 2797.234954][   T73]      netlink_unicast+0x449/0x710
[ 2797.234954][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2797.234954][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2797.234954][   T73]      ___sys_sendmsg+0xee/0x170
[ 2797.234954][   T73]      __sys_sendmsg+0xcd/0x170
[ 2797.234954][   T73]      do_syscall_64+0xc6/0x1e0
[ 2797.234954][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2797.234954][   T73] 
[ 2797.236706][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2797.236706][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2797.236706][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2797.236706][   T73]      ipv6_find_idev+0x102/0x170
[ 2797.236706][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2797.236706][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2797.236706][   T73]      netlink_rcv_skb+0x130/0x360
[ 2797.236706][   T73]      netlink_unicast+0x449/0x710
[ 2797.236706][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2797.236706][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2797.236706][   T73]      ___sys_sendmsg+0xee/0x170
[ 2797.236706][   T73]      __sys_sendmsg+0xcd/0x170
[ 2797.236706][   T73]      do_syscall_64+0xc6/0x1e0
[ 2797.236706][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2797.236706][   T73] 
[ 2797.238611][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2797.238926][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2797.238926][   T73]      netdev_get_by_index+0x5e/0x80
[ 2797.238926][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2797.238926][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2797.238926][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2797.238926][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2797.238926][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2797.238926][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2797.238926][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2797.238926][   T73]      addrconf_dad_begin+0x310/0x670
[ 2797.238926][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2797.238926][   T73]      process_one_work+0x84d/0x18a0
[ 2797.238926][   T73]      worker_thread+0x587/0xd30
[ 2797.238926][   T73]      kthread+0x28a/0x350
[ 2797.238926][   T73]      ret_from_fork+0x31/0x70
[ 2797.238926][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2797.238926][   T73] 
[ 2797.241085][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2797.241085][   T73]      netdev_get_by_index+0x5e/0x80
[ 2797.241085][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2797.241085][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2797.241085][   T73]      ip6_route_add+0x1c/0x140
[ 2797.241085][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2797.241085][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2797.241085][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2797.241085][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2797.241085][   T73]      netlink_rcv_skb+0x130/0x360
[ 2797.241085][   T73]      netlink_unicast+0x449/0x710
[ 2797.241085][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2797.241085][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2797.241085][   T73]      ___sys_sendmsg+0xee/0x170
[ 2797.241085][   T73]      __sys_sendmsg+0xcd/0x170
[ 2797.241085][   T73]      do_syscall_64+0xc6/0x1e0
[ 2797.241085][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2797.241085][   T73] 
[ 2797.243370][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2797.243370][   T73]      netdev_get_by_index+0x5e/0x80
[ 2797.243370][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2797.243370][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2797.243370][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2797.243370][   T73]      ipv6_add_addr+0x411/0x2000
[ 2797.243370][   T73]      inet6_addr_add+0x30e/0xa40
[ 2797.243370][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2797.243370][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2797.243370][   T73]      netlink_rcv_skb+0x130/0x360
[ 2797.243370][   T73]      netlink_unicast+0x449/0x710
[ 2797.243370][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2797.243370][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2797.243370][   T73]      ___sys_sendmsg+0xee/0x170
[ 2797.243370][   T73]      __sys_sendmsg+0xcd/0x170
[ 2797.243370][   T73]      do_syscall_64+0xc6/0x1e0
[ 2797.243370][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2797.243370][   T73] 
[ 2797.245629][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2797.245629][   T73]      netdev_get_by_index+0x5e/0x80
[ 2797.245629][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2797.245629][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2797.245629][   T73]      ip6_route_add+0x1c/0x140
[ 2797.245629][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2797.245629][   T73]      addrconf_add_dev+0xe2/0x170
[ 2797.245629][   T73]      inet6_addr_add+0x12f/0xa40
[ 2797.245629][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2797.245629][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2797.245629][   T73]      netlink_rcv_skb+0x130/0x360
[ 2797.245629][   T73]      netlink_unicast+0x449/0x710
[ 2797.245629][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2797.245629][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2797.245629][   T73]      ___sys_sendmsg+0xee/0x170
[ 2797.245629][   T73]      __sys_sendmsg+0xcd/0x170
[ 2797.245629][   T73]      do_syscall_64+0xc6/0x1e0
[ 2797.245629][   T73] 
[ 2797.247859][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2797.247859][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2797.247859][   T73]      ipv6_find_idev+0x102/0x170
[ 2797.247859][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2797.247859][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2797.247859][   T73]      netlink_rcv_skb+0x130/0x360
[ 2797.247859][   T73]      netlink_unicast+0x449/0x710
[ 2797.247859][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2797.247859][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2797.247859][   T73]      ___sys_sendmsg+0xee/0x170
[ 2797.247859][   T73]      __sys_sendmsg+0xcd/0x170
[ 2797.247859][   T73]      do_syscall_64+0xc6/0x1e0
[ 2797.247859][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2797.247859][   T73] 
[ 2797.249605][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2797.249605][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2797.249605][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2797.249605][   T73]      ipv6_find_idev+0x102/0x170
[ 2797.249605][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2797.249605][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2797.249605][   T73]      netlink_rcv_skb+0x130/0x360
[ 2797.249605][   T73]      netlink_unicast+0x449/0x710
[ 2797.249605][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2797.249605][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2797.249605][   T73]      ___sys_sendmsg+0xee/0x170
[ 2797.249605][   T73]      __sys_sendmsg+0xcd/0x170
[ 2797.249605][   T73]      do_syscall_64+0xc6/0x1e0
[ 2797.249605][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2797.249605][   T73] 
[ 2797.251490][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2797.251808][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2797.251808][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2797.251808][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2797.251808][   T73]      fib6_nh_init+0xa22/0x1580
[ 2797.251808][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2797.251808][   T73]      ip6_route_add+0x1c/0x140
[ 2797.251808][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2797.251808][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2797.251808][   T73]      netlink_rcv_skb+0x130/0x360
[ 2797.251808][   T73]      netlink_unicast+0x449/0x710
[ 2797.251808][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2797.251808][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2797.251808][   T73]      ___sys_sendmsg+0xee/0x170
[ 2797.251808][   T73]      __sys_sendmsg+0xcd/0x170
[ 2797.251808][   T73]      do_syscall_64+0xc6/0x1e0
[ 2797.251808][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2797.251808][   T73] 
[ 2797.254130][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2797.254130][   T73]      dst_init+0x84/0x4a0
[ 2797.254130][   T73]      dst_alloc+0x97/0x150
[ 2797.254130][   T73]      ip6_dst_alloc+0x23/0x90
[ 2797.254130][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2797.254130][   T73]      ip6_pol_route+0x56f/0x840
[ 2797.254130][   T73]      fib6_rule_lookup+0x456/0x630
[ 2797.254130][   T73]      ip6_route_input+0x59c/0xa50
[ 2797.254130][   T73]      ipv6_rcv+0x397/0x810
[ 2797.254130][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2797.254130][   T73]      process_backlog+0x101/0x620
[ 2797.254130][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2797.254130][   T73]      net_rx_action+0x495/0xbe0
[ 2797.254130][   T73]      __do_softirq+0x1b5/0x7f6
[ 2797.254130][   T73] 
[ 2797.256225][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2797.256225][   T73]      netdev_get_by_index+0x5e/0x80
[ 2797.256225][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2797.256225][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2797.256225][   T73]      ip6_route_add+0x1c/0x140
[ 2797.256225][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2797.256225][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2797.256225][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2797.256225][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2797.256225][   T73]      netlink_rcv_skb+0x130/0x360
[ 2797.256225][   T73]      netlink_unicast+0x449/0x710
[ 2797.256225][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2797.256225][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2797.256225][   T73]      ___sys_sendmsg+0xee/0x170
[ 2797.256225][   T73]      __sys_sendmsg+0xcd/0x170
[ 2797.256225][   T73]      do_syscall_64+0xc6/0x1e0
[ 2797.256225][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2797.256225][   T73] 
[ 2797.258657][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2797.258657][   T73]      netdev_get_by_index+0x5e/0x80
[ 2797.258657][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2797.258657][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2797.258657][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2797.258657][   T73]      ipv6_add_addr+0x411/0x2000
[ 2797.258657][   T73]      inet6_addr_add+0x30e/0xa40
[ 2797.258657][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2797.258657][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2797.258657][   T73]      netlink_rcv_skb+0x130/0x360
[ 2797.258657][   T73]      netlink_unicast+0x449/0x710
[ 2797.258657][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2797.258657][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2797.258657][   T73]      ___sys_sendmsg+0xee/0x170
[ 2797.258657][   T73]      __sys_sendmsg+0xcd/0x170
[ 2797.258657][   T73]      do_syscall_64+0xc6/0x1e0
[ 2797.258657][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2797.258657][   T73] 
[ 2797.261175][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2797.261175][   T73]      netdev_get_by_index+0x5e/0x80
[ 2797.261175][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2797.261175][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2797.261175][   T73]      ip6_route_add+0x1c/0x140
[ 2797.261175][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2797.261175][   T73]      addrconf_add_dev+0xe2/0x170
[ 2797.261175][   T73]      inet6_addr_add+0x12f/0xa40
[ 2797.261175][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2797.261175][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2797.261175][   T73]      netlink_rcv_skb+0x130/0x360
[ 2797.261175][   T73]      netlink_unicast+0x449/0x710
[ 2797.261175][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2797.261175][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2797.261175][   T73]      ___sys_sendmsg+0xee/0x170
[ 2797.261175][   T73]      __sys_sendmsg+0xcd/0x170
[ 2797.261175][   T73]      do_syscall_64+0xc6/0x1e0
[ 2797.261175][   T73] 
[ 2797.263675][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2797.263675][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2797.263675][   T73]      ipv6_find_idev+0x102/0x170
[ 2797.263675][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2797.263675][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2797.263675][   T73]      netlink_rcv_skb+0x130/0x360
[ 2797.263675][   T73]      netlink_unicast+0x449/0x710
[ 2797.263675][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2797.263675][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2797.263675][   T73]      ___sys_sendmsg+0xee/0x170
[ 2797.263675][   T73]      __sys_sendmsg+0xcd/0x170
[ 2797.263675][   T73]      do_syscall_64+0xc6/0x1e0
[ 2797.263675][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2797.263675][   T73] 
[ 2797.265658][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2797.265658][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2797.265658][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2797.265658][   T73]      ipv6_find_idev+0x102/0x170
[ 2797.265658][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2797.265658][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2797.265658][   T73]      netlink_rcv_skb+0x130/0x360
[ 2797.265658][   T73]      netlink_unicast+0x449/0x710
[ 2797.265658][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2797.265658][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2797.265658][   T73]      ___sys_sendmsg+0xee/0x170
[ 2797.265658][   T73]      __sys_sendmsg+0xcd/0x170
[ 2797.265658][   T73]      do_syscall_64+0xc6/0x1e0
[ 2797.265658][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2797.265658][   T73] 
[ 2797.267714][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2797.268070][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2797.268070][   T73]      netdev_get_by_index+0x5e/0x80
[ 2797.268070][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2797.268070][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2797.268070][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2797.268070][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2797.268070][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2797.268070][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2797.268070][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2797.268070][   T73]      addrconf_dad_begin+0x310/0x670
[ 2797.268070][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2797.268070][   T73]      process_one_work+0x84d/0x18a0
[ 2797.268070][   T73]      worker_thread+0x587/0xd30
[ 2797.268070][   T73]      kthread+0x28a/0x350
[ 2797.268070][   T73]      ret_from_fork+0x31/0x70
[ 2797.268070][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2797.268070][   T73] 
[ 2797.270493][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2797.270493][   T73]      netdev_get_by_index+0x5e/0x80
[ 2797.270493][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2797.270493][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2797.270493][   T73]      ip6_route_add+0x1c/0x140
[ 2797.270493][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2797.270493][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2797.270493][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2797.270493][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2797.270493][   T73]      netlink_rcv_skb+0x130/0x360
[ 2797.270493][   T73]      netlink_unicast+0x449/0x710
[ 2797.270493][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2797.270493][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2797.270493][   T73]      ___sys_sendmsg+0xee/0x170
[ 2797.270493][   T73]      __sys_sendmsg+0xcd/0x170
[ 2797.270493][   T73]      do_syscall_64+0xc6/0x1e0
[ 2797.270493][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2797.270493][   T73] 
[ 2797.272992][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2797.272992][   T73]      netdev_get_by_index+0x5e/0x80
[ 2797.272992][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2797.272992][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2797.272992][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2797.272992][   T73]      ipv6_add_addr+0x411/0x2000
[ 2797.272992][   T73]      inet6_addr_add+0x30e/0xa40
[ 2797.272992][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2797.272992][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2797.272992][   T73]      netlink_rcv_skb+0x130/0x360
[ 2797.272992][   T73]      netlink_unicast+0x449/0x710
[ 2797.272992][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2797.272992][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2797.272992][   T73]      ___sys_sendmsg+0xee/0x170
[ 2797.272992][   T73]      __sys_sendmsg+0xcd/0x170
[ 2797.272992][   T73]      do_syscall_64+0xc6/0x1e0
[ 2797.272992][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2797.272992][   T73] 
[ 2797.275503][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2797.275503][   T73]      netdev_get_by_index+0x5e/0x80
[ 2797.275503][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2797.275503][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2797.275503][   T73]      ip6_route_add+0x1c/0x140
[ 2797.275503][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2797.275503][   T73]      addrconf_add_dev+0xe2/0x170
[ 2797.275503][   T73]      inet6_addr_add+0x12f/0xa40
[ 2797.275503][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2797.275503][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2797.275503][   T73]      netlink_rcv_skb+0x130/0x360
[ 2797.275503][   T73]      netlink_unicast+0x449/0x710
[ 2797.275503][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2797.275503][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2797.275503][   T73]      ___sys_sendmsg+0xee/0x170
[ 2797.275503][   T73]      __sys_sendmsg+0xcd/0x170
[ 2797.275503][   T73]      do_syscall_64+0xc6/0x1e0
[ 2797.275503][   T73] 
[ 2797.278026][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2797.278026][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2797.278026][   T73]      ipv6_find_idev+0x102/0x170
[ 2797.278026][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2797.278026][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2797.278026][   T73]      netlink_rcv_skb+0x130/0x360
[ 2797.278026][   T73]      netlink_unicast+0x449/0x710
[ 2797.278026][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2797.278026][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2797.278026][   T73]      ___sys_sendmsg+0xee/0x170
[ 2797.278026][   T73]      __sys_sendmsg+0xcd/0x170
[ 2797.278026][   T73]      do_syscall_64+0xc6/0x1e0
[ 2797.278026][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2797.278026][   T73] 
[ 2797.279954][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2797.279954][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2797.279954][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2797.279954][   T73]      ipv6_find_idev+0x102/0x170
[ 2797.279954][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2797.279954][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2797.279954][   T73]      netlink_rcv_skb+0x130/0x360
[ 2797.279954][   T73]      netlink_unicast+0x449/0x710
[ 2797.279954][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2797.279954][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2797.279954][   T73]      ___sys_sendmsg+0xee/0x170
[ 2797.279954][   T73]      __sys_sendmsg+0xcd/0x170
[ 2797.279954][   T73]      do_syscall_64+0xc6/0x1e0
[ 2797.279954][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2797.279954][   T73] 
[ 2807.535777][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2807.536252][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2807.536252][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2807.536252][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2807.536252][   T73]      fib6_nh_init+0xa22/0x1580
[ 2807.536252][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2807.536252][   T73]      ip6_route_add+0x1c/0x140
[ 2807.536252][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2807.536252][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2807.536252][   T73]      netlink_rcv_skb+0x130/0x360
[ 2807.536252][   T73]      netlink_unicast+0x449/0x710
[ 2807.536252][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2807.536252][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2807.536252][   T73]      ___sys_sendmsg+0xee/0x170
[ 2807.536252][   T73]      __sys_sendmsg+0xcd/0x170
[ 2807.536252][   T73]      do_syscall_64+0xc6/0x1e0
[ 2807.536252][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2807.536252][   T73] 
[ 2807.538391][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2807.538391][   T73]      dst_init+0x84/0x4a0
[ 2807.538391][   T73]      dst_alloc+0x97/0x150
[ 2807.538391][   T73]      ip6_dst_alloc+0x23/0x90
[ 2807.538391][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2807.538391][   T73]      ip6_pol_route+0x56f/0x840
[ 2807.538391][   T73]      fib6_rule_lookup+0x456/0x630
[ 2807.538391][   T73]      ip6_route_input+0x59c/0xa50
[ 2807.538391][   T73]      ipv6_rcv+0x397/0x810
[ 2807.538391][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2807.538391][   T73]      process_backlog+0x101/0x620
[ 2807.538391][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2807.538391][   T73]      net_rx_action+0x495/0xbe0
[ 2807.538391][   T73]      __do_softirq+0x1b5/0x7f6
[ 2807.538391][   T73] 
[ 2807.540229][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2807.540229][   T73]      netdev_get_by_index+0x5e/0x80
[ 2807.540229][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2807.540229][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2807.540229][   T73]      ip6_route_add+0x1c/0x140
[ 2807.540229][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2807.540229][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2807.540229][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2807.540229][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2807.540229][   T73]      netlink_rcv_skb+0x130/0x360
[ 2807.540229][   T73]      netlink_unicast+0x449/0x710
[ 2807.540229][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2807.540229][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2807.540229][   T73]      ___sys_sendmsg+0xee/0x170
[ 2807.540229][   T73]      __sys_sendmsg+0xcd/0x170
[ 2807.540229][   T73]      do_syscall_64+0xc6/0x1e0
[ 2807.540229][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2807.540229][   T73] 
[ 2807.542503][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2807.542503][   T73]      netdev_get_by_index+0x5e/0x80
[ 2807.542503][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2807.542503][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2807.542503][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2807.542503][   T73]      ipv6_add_addr+0x411/0x2000
[ 2807.542503][   T73]      inet6_addr_add+0x30e/0xa40
[ 2807.542503][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2807.542503][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2807.542503][   T73]      netlink_rcv_skb+0x130/0x360
[ 2807.542503][   T73]      netlink_unicast+0x449/0x710
[ 2807.542503][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2807.542503][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2807.542503][   T73]      ___sys_sendmsg+0xee/0x170
[ 2807.542503][   T73]      __sys_sendmsg+0xcd/0x170
[ 2807.542503][   T73]      do_syscall_64+0xc6/0x1e0
[ 2807.542503][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2807.542503][   T73] 
[ 2807.544731][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2807.544731][   T73]      netdev_get_by_index+0x5e/0x80
[ 2807.544731][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2807.544731][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2807.544731][   T73]      ip6_route_add+0x1c/0x140
[ 2807.544731][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2807.544731][   T73]      addrconf_add_dev+0xe2/0x170
[ 2807.544731][   T73]      inet6_addr_add+0x12f/0xa40
[ 2807.544731][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2807.544731][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2807.544731][   T73]      netlink_rcv_skb+0x130/0x360
[ 2807.544731][   T73]      netlink_unicast+0x449/0x710
[ 2807.544731][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2807.544731][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2807.544731][   T73]      ___sys_sendmsg+0xee/0x170
[ 2807.544731][   T73]      __sys_sendmsg+0xcd/0x170
[ 2807.544731][   T73]      do_syscall_64+0xc6/0x1e0
[ 2807.544731][   T73] 
[ 2807.546942][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2807.546942][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2807.546942][   T73]      ipv6_find_idev+0x102/0x170
[ 2807.546942][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2807.546942][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2807.546942][   T73]      netlink_rcv_skb+0x130/0x360
[ 2807.546942][   T73]      netlink_unicast+0x449/0x710
[ 2807.546942][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2807.546942][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2807.546942][   T73]      ___sys_sendmsg+0xee/0x170
[ 2807.546942][   T73]      __sys_sendmsg+0xcd/0x170
[ 2807.546942][   T73]      do_syscall_64+0xc6/0x1e0
[ 2807.546942][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2807.546942][   T73] 
[ 2807.548664][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2807.548664][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2807.548664][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2807.548664][   T73]      ipv6_find_idev+0x102/0x170
[ 2807.548664][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2807.548664][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2807.548664][   T73]      netlink_rcv_skb+0x130/0x360
[ 2807.548664][   T73]      netlink_unicast+0x449/0x710
[ 2807.548664][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2807.548664][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2807.548664][   T73]      ___sys_sendmsg+0xee/0x170
[ 2807.548664][   T73]      __sys_sendmsg+0xcd/0x170
[ 2807.548664][   T73]      do_syscall_64+0xc6/0x1e0
[ 2807.548664][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2807.548664][   T73] 
[ 2807.550538][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2807.550856][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2807.550856][   T73]      netdev_get_by_index+0x5e/0x80
[ 2807.550856][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2807.550856][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2807.550856][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2807.550856][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2807.550856][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2807.550856][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2807.550856][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2807.550856][   T73]      addrconf_dad_begin+0x310/0x670
[ 2807.550856][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2807.550856][   T73]      process_one_work+0x84d/0x18a0
[ 2807.550856][   T73]      worker_thread+0x587/0xd30
[ 2807.550856][   T73]      kthread+0x28a/0x350
[ 2807.550856][   T73]      ret_from_fork+0x31/0x70
[ 2807.550856][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2807.550856][   T73] 
[ 2807.553011][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2807.553011][   T73]      netdev_get_by_index+0x5e/0x80
[ 2807.553011][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2807.553011][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2807.553011][   T73]      ip6_route_add+0x1c/0x140
[ 2807.553011][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2807.553011][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2807.553011][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2807.553011][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2807.553011][   T73]      netlink_rcv_skb+0x130/0x360
[ 2807.553011][   T73]      netlink_unicast+0x449/0x710
[ 2807.553011][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2807.553011][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2807.553011][   T73]      ___sys_sendmsg+0xee/0x170
[ 2807.553011][   T73]      __sys_sendmsg+0xcd/0x170
[ 2807.553011][   T73]      do_syscall_64+0xc6/0x1e0
[ 2807.553011][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2807.553011][   T73] 
[ 2807.555248][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2807.555248][   T73]      netdev_get_by_index+0x5e/0x80
[ 2807.555248][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2807.555248][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2807.555248][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2807.555248][   T73]      ipv6_add_addr+0x411/0x2000
[ 2807.555248][   T73]      inet6_addr_add+0x30e/0xa40
[ 2807.555248][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2807.555248][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2807.555248][   T73]      netlink_rcv_skb+0x130/0x360
[ 2807.555248][   T73]      netlink_unicast+0x449/0x710
[ 2807.555248][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2807.555248][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2807.555248][   T73]      ___sys_sendmsg+0xee/0x170
[ 2807.555248][   T73]      __sys_sendmsg+0xcd/0x170
[ 2807.555248][   T73]      do_syscall_64+0xc6/0x1e0
[ 2807.555248][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2807.555248][   T73] 
[ 2807.557484][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2807.557484][   T73]      netdev_get_by_index+0x5e/0x80
[ 2807.557484][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2807.557484][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2807.557484][   T73]      ip6_route_add+0x1c/0x140
[ 2807.557484][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2807.557484][   T73]      addrconf_add_dev+0xe2/0x170
[ 2807.557484][   T73]      inet6_addr_add+0x12f/0xa40
[ 2807.557484][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2807.557484][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2807.557484][   T73]      netlink_rcv_skb+0x130/0x360
[ 2807.557484][   T73]      netlink_unicast+0x449/0x710
[ 2807.557484][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2807.557484][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2807.557484][   T73]      ___sys_sendmsg+0xee/0x170
[ 2807.557484][   T73]      __sys_sendmsg+0xcd/0x170
[ 2807.557484][   T73]      do_syscall_64+0xc6/0x1e0
[ 2807.557484][   T73] 
[ 2807.559690][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2807.559690][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2807.559690][   T73]      ipv6_find_idev+0x102/0x170
[ 2807.559690][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2807.559690][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2807.559690][   T73]      netlink_rcv_skb+0x130/0x360
[ 2807.559690][   T73]      netlink_unicast+0x449/0x710
[ 2807.559690][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2807.559690][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2807.559690][   T73]      ___sys_sendmsg+0xee/0x170
[ 2807.559690][   T73]      __sys_sendmsg+0xcd/0x170
[ 2807.559690][   T73]      do_syscall_64+0xc6/0x1e0
[ 2807.559690][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2807.559690][   T73] 
[ 2807.561415][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2807.561415][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2807.561415][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2807.561415][   T73]      ipv6_find_idev+0x102/0x170
[ 2807.561415][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2807.561415][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2807.561415][   T73]      netlink_rcv_skb+0x130/0x360
[ 2807.561415][   T73]      netlink_unicast+0x449/0x710
[ 2807.561415][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2807.561415][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2807.561415][   T73]      ___sys_sendmsg+0xee/0x170
[ 2807.561415][   T73]      __sys_sendmsg+0xcd/0x170
[ 2807.561415][   T73]      do_syscall_64+0xc6/0x1e0
[ 2807.561415][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2807.561415][   T73] 
[ 2807.563304][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2807.563605][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2807.563605][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2807.563605][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2807.563605][   T73]      fib6_nh_init+0xa22/0x1580
[ 2807.563605][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2807.563605][   T73]      ip6_route_add+0x1c/0x140
[ 2807.563605][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2807.563605][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2807.563605][   T73]      netlink_rcv_skb+0x130/0x360
[ 2807.563605][   T73]      netlink_unicast+0x449/0x710
[ 2807.563605][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2807.563605][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2807.563605][   T73]      ___sys_sendmsg+0xee/0x170
[ 2807.563605][   T73]      __sys_sendmsg+0xcd/0x170
[ 2807.563605][   T73]      do_syscall_64+0xc6/0x1e0
[ 2807.563605][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2807.563605][   T73] 
[ 2807.565901][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2807.565901][   T73]      dst_init+0x84/0x4a0
[ 2807.565901][   T73]      dst_alloc+0x97/0x150
[ 2807.565901][   T73]      ip6_dst_alloc+0x23/0x90
[ 2807.565901][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2807.565901][   T73]      ip6_pol_route+0x56f/0x840
[ 2807.565901][   T73]      fib6_rule_lookup+0x456/0x630
[ 2807.565901][   T73]      ip6_route_input+0x59c/0xa50
[ 2807.565901][   T73]      ipv6_rcv+0x397/0x810
[ 2807.565901][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2807.565901][   T73]      process_backlog+0x101/0x620
[ 2807.565901][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2807.565901][   T73]      net_rx_action+0x495/0xbe0
[ 2807.565901][   T73]      __do_softirq+0x1b5/0x7f6
[ 2807.565901][   T73] 
[ 2807.567919][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2807.567919][   T73]      netdev_get_by_index+0x5e/0x80
[ 2807.567919][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2807.567919][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2807.567919][   T73]      ip6_route_add+0x1c/0x140
[ 2807.567919][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2807.567919][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2807.567919][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2807.567919][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2807.567919][   T73]      netlink_rcv_skb+0x130/0x360
[ 2807.567919][   T73]      netlink_unicast+0x449/0x710
[ 2807.567919][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2807.567919][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2807.567919][   T73]      ___sys_sendmsg+0xee/0x170
[ 2807.567919][   T73]      __sys_sendmsg+0xcd/0x170
[ 2807.567919][   T73]      do_syscall_64+0xc6/0x1e0
[ 2807.567919][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2807.567919][   T73] 
[ 2807.570348][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2807.570348][   T73]      netdev_get_by_index+0x5e/0x80
[ 2807.570348][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2807.570348][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2807.570348][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2807.570348][   T73]      ipv6_add_addr+0x411/0x2000
[ 2807.570348][   T73]      inet6_addr_add+0x30e/0xa40
[ 2807.570348][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2807.570348][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2807.570348][   T73]      netlink_rcv_skb+0x130/0x360
[ 2807.570348][   T73]      netlink_unicast+0x449/0x710
[ 2807.570348][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2807.570348][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2807.570348][   T73]      ___sys_sendmsg+0xee/0x170
[ 2807.570348][   T73]      __sys_sendmsg+0xcd/0x170
[ 2807.570348][   T73]      do_syscall_64+0xc6/0x1e0
[ 2807.570348][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2807.570348][   T73] 
[ 2807.572901][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2807.572901][   T73]      netdev_get_by_index+0x5e/0x80
[ 2807.572901][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2807.572901][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2807.572901][   T73]      ip6_route_add+0x1c/0x140
[ 2807.572901][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2807.572901][   T73]      addrconf_add_dev+0xe2/0x170
[ 2807.572901][   T73]      inet6_addr_add+0x12f/0xa40
[ 2807.572901][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2807.572901][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2807.572901][   T73]      netlink_rcv_skb+0x130/0x360
[ 2807.572901][   T73]      netlink_unicast+0x449/0x710
[ 2807.572901][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2807.572901][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2807.572901][   T73]      ___sys_sendmsg+0xee/0x170
[ 2807.572901][   T73]      __sys_sendmsg+0xcd/0x170
[ 2807.572901][   T73]      do_syscall_64+0xc6/0x1e0
[ 2807.572901][   T73] 
[ 2807.575314][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2807.575314][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2807.575314][   T73]      ipv6_find_idev+0x102/0x170
[ 2807.575314][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2807.575314][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2807.575314][   T73]      netlink_rcv_skb+0x130/0x360
[ 2807.575314][   T73]      netlink_unicast+0x449/0x710
[ 2807.575314][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2807.575314][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2807.575314][   T73]      ___sys_sendmsg+0xee/0x170
[ 2807.575314][   T73]      __sys_sendmsg+0xcd/0x170
[ 2807.575314][   T73]      do_syscall_64+0xc6/0x1e0
[ 2807.575314][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2807.575314][   T73] 
[ 2807.577209][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2807.577209][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2807.577209][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2807.577209][   T73]      ipv6_find_idev+0x102/0x170
[ 2807.577209][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2807.577209][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2807.577209][   T73]      netlink_rcv_skb+0x130/0x360
[ 2807.577209][   T73]      netlink_unicast+0x449/0x710
[ 2807.577209][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2807.577209][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2807.577209][   T73]      ___sys_sendmsg+0xee/0x170
[ 2807.577209][   T73]      __sys_sendmsg+0xcd/0x170
[ 2807.577209][   T73]      do_syscall_64+0xc6/0x1e0
[ 2807.577209][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2807.577209][   T73] 
[ 2807.579267][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2807.579621][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2807.579621][   T73]      netdev_get_by_index+0x5e/0x80
[ 2807.579621][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2807.579621][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2807.579621][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2807.579621][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2807.579621][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2807.579621][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2807.579621][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2807.579621][   T73]      addrconf_dad_begin+0x310/0x670
[ 2807.579621][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2807.579621][   T73]      process_one_work+0x84d/0x18a0
[ 2807.579621][   T73]      worker_thread+0x587/0xd30
[ 2807.579621][   T73]      kthread+0x28a/0x350
[ 2807.579621][   T73]      ret_from_fork+0x31/0x70
[ 2807.579621][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2807.579621][   T73] 
[ 2807.581963][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2807.581963][   T73]      netdev_get_by_index+0x5e/0x80
[ 2807.581963][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2807.581963][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2807.581963][   T73]      ip6_route_add+0x1c/0x140
[ 2807.581963][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2807.581963][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2807.581963][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2807.581963][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2807.581963][   T73]      netlink_rcv_skb+0x130/0x360
[ 2807.581963][   T73]      netlink_unicast+0x449/0x710
[ 2807.581963][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2807.581963][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2807.581963][   T73]      ___sys_sendmsg+0xee/0x170
[ 2807.581963][   T73]      __sys_sendmsg+0xcd/0x170
[ 2807.581963][   T73]      do_syscall_64+0xc6/0x1e0
[ 2807.581963][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2807.581963][   T73] 
[ 2807.584501][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2807.584501][   T73]      netdev_get_by_index+0x5e/0x80
[ 2807.584501][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2807.584501][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2807.584501][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2807.584501][   T73]      ipv6_add_addr+0x411/0x2000
[ 2807.584501][   T73]      inet6_addr_add+0x30e/0xa40
[ 2807.584501][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2807.584501][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2807.584501][   T73]      netlink_rcv_skb+0x130/0x360
[ 2807.584501][   T73]      netlink_unicast+0x449/0x710
[ 2807.584501][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2807.584501][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2807.584501][   T73]      ___sys_sendmsg+0xee/0x170
[ 2807.584501][   T73]      __sys_sendmsg+0xcd/0x170
[ 2807.584501][   T73]      do_syscall_64+0xc6/0x1e0
[ 2807.584501][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2807.584501][   T73] 
[ 2807.586975][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2807.586975][   T73]      netdev_get_by_index+0x5e/0x80
[ 2807.586975][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2807.586975][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2807.586975][   T73]      ip6_route_add+0x1c/0x140
[ 2807.586975][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2807.586975][   T73]      addrconf_add_dev+0xe2/0x170
[ 2807.586975][   T73]      inet6_addr_add+0x12f/0xa40
[ 2807.586975][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2807.586975][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2807.586975][   T73]      netlink_rcv_skb+0x130/0x360
[ 2807.586975][   T73]      netlink_unicast+0x449/0x710
[ 2807.586975][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2807.586975][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2807.586975][   T73]      ___sys_sendmsg+0xee/0x170
[ 2807.586975][   T73]      __sys_sendmsg+0xcd/0x170
[ 2807.586975][   T73]      do_syscall_64+0xc6/0x1e0
[ 2807.586975][   T73] 
[ 2807.589421][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2807.589421][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2807.589421][   T73]      ipv6_find_idev+0x102/0x170
[ 2807.589421][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2807.589421][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2807.589421][   T73]      netlink_rcv_skb+0x130/0x360
[ 2807.589421][   T73]      netlink_unicast+0x449/0x710
[ 2807.589421][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2807.589421][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2807.589421][   T73]      ___sys_sendmsg+0xee/0x170
[ 2807.589421][   T73]      __sys_sendmsg+0xcd/0x170
[ 2807.589421][   T73]      do_syscall_64+0xc6/0x1e0
[ 2807.589421][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2807.589421][   T73] 
[ 2807.591325][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2807.591325][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2807.591325][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2807.591325][   T73]      ipv6_find_idev+0x102/0x170
[ 2807.591325][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2807.591325][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2807.591325][   T73]      netlink_rcv_skb+0x130/0x360
[ 2807.591325][   T73]      netlink_unicast+0x449/0x710
[ 2807.591325][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2807.591325][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2807.591325][   T73]      ___sys_sendmsg+0xee/0x170
[ 2807.591325][   T73]      __sys_sendmsg+0xcd/0x170
[ 2807.591325][   T73]      do_syscall_64+0xc6/0x1e0
[ 2807.591325][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2807.591325][   T73] 
[ 2817.631762][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2817.632178][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2817.632178][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2817.632178][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2817.632178][   T73]      fib6_nh_init+0xa22/0x1580
[ 2817.632178][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2817.632178][   T73]      ip6_route_add+0x1c/0x140
[ 2817.632178][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2817.632178][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2817.632178][   T73]      netlink_rcv_skb+0x130/0x360
[ 2817.632178][   T73]      netlink_unicast+0x449/0x710
[ 2817.632178][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2817.632178][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2817.632178][   T73]      ___sys_sendmsg+0xee/0x170
[ 2817.632178][   T73]      __sys_sendmsg+0xcd/0x170
[ 2817.632178][   T73]      do_syscall_64+0xc6/0x1e0
[ 2817.632178][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2817.632178][   T73] 
[ 2817.634304][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2817.634304][   T73]      dst_init+0x84/0x4a0
[ 2817.634304][   T73]      dst_alloc+0x97/0x150
[ 2817.634304][   T73]      ip6_dst_alloc+0x23/0x90
[ 2817.634304][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2817.634304][   T73]      ip6_pol_route+0x56f/0x840
[ 2817.634304][   T73]      fib6_rule_lookup+0x456/0x630
[ 2817.634304][   T73]      ip6_route_input+0x59c/0xa50
[ 2817.634304][   T73]      ipv6_rcv+0x397/0x810
[ 2817.634304][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2817.634304][   T73]      process_backlog+0x101/0x620
[ 2817.634304][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2817.634304][   T73]      net_rx_action+0x495/0xbe0
[ 2817.634304][   T73]      __do_softirq+0x1b5/0x7f6
[ 2817.634304][   T73] 
[ 2817.636157][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2817.636157][   T73]      netdev_get_by_index+0x5e/0x80
[ 2817.636157][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2817.636157][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2817.636157][   T73]      ip6_route_add+0x1c/0x140
[ 2817.636157][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2817.636157][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2817.636157][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2817.636157][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2817.636157][   T73]      netlink_rcv_skb+0x130/0x360
[ 2817.636157][   T73]      netlink_unicast+0x449/0x710
[ 2817.636157][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2817.636157][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2817.636157][   T73]      ___sys_sendmsg+0xee/0x170
[ 2817.636157][   T73]      __sys_sendmsg+0xcd/0x170
[ 2817.636157][   T73]      do_syscall_64+0xc6/0x1e0
[ 2817.636157][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2817.636157][   T73] 
[ 2817.638408][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2817.638408][   T73]      netdev_get_by_index+0x5e/0x80
[ 2817.638408][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2817.638408][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2817.638408][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2817.638408][   T73]      ipv6_add_addr+0x411/0x2000
[ 2817.638408][   T73]      inet6_addr_add+0x30e/0xa40
[ 2817.638408][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2817.638408][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2817.638408][   T73]      netlink_rcv_skb+0x130/0x360
[ 2817.638408][   T73]      netlink_unicast+0x449/0x710
[ 2817.638408][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2817.638408][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2817.638408][   T73]      ___sys_sendmsg+0xee/0x170
[ 2817.638408][   T73]      __sys_sendmsg+0xcd/0x170
[ 2817.638408][   T73]      do_syscall_64+0xc6/0x1e0
[ 2817.638408][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2817.638408][   T73] 
[ 2817.640647][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2817.640647][   T73]      netdev_get_by_index+0x5e/0x80
[ 2817.640647][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2817.640647][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2817.640647][   T73]      ip6_route_add+0x1c/0x140
[ 2817.640647][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2817.640647][   T73]      addrconf_add_dev+0xe2/0x170
[ 2817.640647][   T73]      inet6_addr_add+0x12f/0xa40
[ 2817.640647][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2817.640647][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2817.640647][   T73]      netlink_rcv_skb+0x130/0x360
[ 2817.640647][   T73]      netlink_unicast+0x449/0x710
[ 2817.640647][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2817.640647][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2817.640647][   T73]      ___sys_sendmsg+0xee/0x170
[ 2817.640647][   T73]      __sys_sendmsg+0xcd/0x170
[ 2817.640647][   T73]      do_syscall_64+0xc6/0x1e0
[ 2817.640647][   T73] 
[ 2817.642852][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2817.642852][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2817.642852][   T73]      ipv6_find_idev+0x102/0x170
[ 2817.642852][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2817.642852][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2817.642852][   T73]      netlink_rcv_skb+0x130/0x360
[ 2817.642852][   T73]      netlink_unicast+0x449/0x710
[ 2817.642852][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2817.642852][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2817.642852][   T73]      ___sys_sendmsg+0xee/0x170
[ 2817.642852][   T73]      __sys_sendmsg+0xcd/0x170
[ 2817.642852][   T73]      do_syscall_64+0xc6/0x1e0
[ 2817.642852][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2817.642852][   T73] 
[ 2817.644578][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2817.644578][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2817.644578][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2817.644578][   T73]      ipv6_find_idev+0x102/0x170
[ 2817.644578][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2817.644578][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2817.644578][   T73]      netlink_rcv_skb+0x130/0x360
[ 2817.644578][   T73]      netlink_unicast+0x449/0x710
[ 2817.644578][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2817.644578][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2817.644578][   T73]      ___sys_sendmsg+0xee/0x170
[ 2817.644578][   T73]      __sys_sendmsg+0xcd/0x170
[ 2817.644578][   T73]      do_syscall_64+0xc6/0x1e0
[ 2817.644578][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2817.644578][   T73] 
[ 2817.646466][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2817.646780][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2817.646780][   T73]      netdev_get_by_index+0x5e/0x80
[ 2817.646780][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2817.646780][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2817.646780][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2817.646780][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2817.646780][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2817.646780][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2817.646780][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2817.646780][   T73]      addrconf_dad_begin+0x310/0x670
[ 2817.646780][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2817.646780][   T73]      process_one_work+0x84d/0x18a0
[ 2817.646780][   T73]      worker_thread+0x587/0xd30
[ 2817.646780][   T73]      kthread+0x28a/0x350
[ 2817.646780][   T73]      ret_from_fork+0x31/0x70
[ 2817.646780][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2817.646780][   T73] 
[ 2817.648922][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2817.648922][   T73]      netdev_get_by_index+0x5e/0x80
[ 2817.648922][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2817.648922][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2817.648922][   T73]      ip6_route_add+0x1c/0x140
[ 2817.648922][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2817.648922][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2817.648922][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2817.648922][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2817.648922][   T73]      netlink_rcv_skb+0x130/0x360
[ 2817.648922][   T73]      netlink_unicast+0x449/0x710
[ 2817.648922][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2817.648922][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2817.648922][   T73]      ___sys_sendmsg+0xee/0x170
[ 2817.648922][   T73]      __sys_sendmsg+0xcd/0x170
[ 2817.648922][   T73]      do_syscall_64+0xc6/0x1e0
[ 2817.648922][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2817.648922][   T73] 
[ 2817.651688][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2817.651688][   T73]      netdev_get_by_index+0x5e/0x80
[ 2817.651688][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2817.651688][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2817.651688][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2817.651688][   T73]      ipv6_add_addr+0x411/0x2000
[ 2817.651688][   T73]      inet6_addr_add+0x30e/0xa40
[ 2817.651688][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2817.651688][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2817.651688][   T73]      netlink_rcv_skb+0x130/0x360
[ 2817.651688][   T73]      netlink_unicast+0x449/0x710
[ 2817.651688][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2817.651688][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2817.651688][   T73]      ___sys_sendmsg+0xee/0x170
[ 2817.651688][   T73]      __sys_sendmsg+0xcd/0x170
[ 2817.651688][   T73]      do_syscall_64+0xc6/0x1e0
[ 2817.651688][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2817.651688][   T73] 
[ 2817.653951][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2817.653951][   T73]      netdev_get_by_index+0x5e/0x80
[ 2817.653951][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2817.653951][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2817.653951][   T73]      ip6_route_add+0x1c/0x140
[ 2817.653951][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2817.653951][   T73]      addrconf_add_dev+0xe2/0x170
[ 2817.653951][   T73]      inet6_addr_add+0x12f/0xa40
[ 2817.653951][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2817.653951][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2817.653951][   T73]      netlink_rcv_skb+0x130/0x360
[ 2817.653951][   T73]      netlink_unicast+0x449/0x710
[ 2817.653951][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2817.653951][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2817.653951][   T73]      ___sys_sendmsg+0xee/0x170
[ 2817.653951][   T73]      __sys_sendmsg+0xcd/0x170
[ 2817.653951][   T73]      do_syscall_64+0xc6/0x1e0
[ 2817.653951][   T73] 
[ 2817.656151][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2817.656151][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2817.656151][   T73]      ipv6_find_idev+0x102/0x170
[ 2817.656151][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2817.656151][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2817.656151][   T73]      netlink_rcv_skb+0x130/0x360
[ 2817.656151][   T73]      netlink_unicast+0x449/0x710
[ 2817.656151][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2817.656151][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2817.656151][   T73]      ___sys_sendmsg+0xee/0x170
[ 2817.656151][   T73]      __sys_sendmsg+0xcd/0x170
[ 2817.656151][   T73]      do_syscall_64+0xc6/0x1e0
[ 2817.656151][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2817.656151][   T73] 
[ 2817.657872][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2817.657872][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2817.657872][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2817.657872][   T73]      ipv6_find_idev+0x102/0x170
[ 2817.657872][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2817.657872][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2817.657872][   T73]      netlink_rcv_skb+0x130/0x360
[ 2817.657872][   T73]      netlink_unicast+0x449/0x710
[ 2817.657872][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2817.657872][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2817.657872][   T73]      ___sys_sendmsg+0xee/0x170
[ 2817.657872][   T73]      __sys_sendmsg+0xcd/0x170
[ 2817.657872][   T73]      do_syscall_64+0xc6/0x1e0
[ 2817.657872][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2817.657872][   T73] 
[ 2817.659754][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2817.660048][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2817.660048][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2817.660048][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2817.660048][   T73]      fib6_nh_init+0xa22/0x1580
[ 2817.660048][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2817.660048][   T73]      ip6_route_add+0x1c/0x140
[ 2817.660048][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2817.660048][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2817.660048][   T73]      netlink_rcv_skb+0x130/0x360
[ 2817.660048][   T73]      netlink_unicast+0x449/0x710
[ 2817.660048][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2817.660048][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2817.660048][   T73]      ___sys_sendmsg+0xee/0x170
[ 2817.660048][   T73]      __sys_sendmsg+0xcd/0x170
[ 2817.660048][   T73]      do_syscall_64+0xc6/0x1e0
[ 2817.660048][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2817.660048][   T73] 
[ 2817.662350][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2817.662350][   T73]      dst_init+0x84/0x4a0
[ 2817.662350][   T73]      dst_alloc+0x97/0x150
[ 2817.662350][   T73]      ip6_dst_alloc+0x23/0x90
[ 2817.662350][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2817.662350][   T73]      ip6_pol_route+0x56f/0x840
[ 2817.662350][   T73]      fib6_rule_lookup+0x456/0x630
[ 2817.662350][   T73]      ip6_route_input+0x59c/0xa50
[ 2817.662350][   T73]      ipv6_rcv+0x397/0x810
[ 2817.662350][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2817.662350][   T73]      process_backlog+0x101/0x620
[ 2817.662350][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2817.662350][   T73]      net_rx_action+0x495/0xbe0
[ 2817.662350][   T73]      __do_softirq+0x1b5/0x7f6
[ 2817.662350][   T73] 
[ 2817.669280][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2817.669280][   T73]      netdev_get_by_index+0x5e/0x80
[ 2817.669280][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2817.669280][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2817.669280][   T73]      ip6_route_add+0x1c/0x140
[ 2817.669280][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2817.669280][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2817.669280][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2817.669280][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2817.669280][   T73]      netlink_rcv_skb+0x130/0x360
[ 2817.669280][   T73]      netlink_unicast+0x449/0x710
[ 2817.669280][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2817.669280][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2817.669280][   T73]      ___sys_sendmsg+0xee/0x170
[ 2817.669280][   T73]      __sys_sendmsg+0xcd/0x170
[ 2817.669280][   T73]      do_syscall_64+0xc6/0x1e0
[ 2817.669280][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2817.669280][   T73] 
[ 2817.671701][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2817.671701][   T73]      netdev_get_by_index+0x5e/0x80
[ 2817.671701][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2817.671701][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2817.671701][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2817.671701][   T73]      ipv6_add_addr+0x411/0x2000
[ 2817.671701][   T73]      inet6_addr_add+0x30e/0xa40
[ 2817.671701][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2817.671701][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2817.671701][   T73]      netlink_rcv_skb+0x130/0x360
[ 2817.671701][   T73]      netlink_unicast+0x449/0x710
[ 2817.671701][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2817.671701][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2817.671701][   T73]      ___sys_sendmsg+0xee/0x170
[ 2817.671701][   T73]      __sys_sendmsg+0xcd/0x170
[ 2817.671701][   T73]      do_syscall_64+0xc6/0x1e0
[ 2817.671701][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2817.671701][   T73] 
[ 2817.674189][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2817.674189][   T73]      netdev_get_by_index+0x5e/0x80
[ 2817.674189][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2817.674189][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2817.674189][   T73]      ip6_route_add+0x1c/0x140
[ 2817.674189][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2817.674189][   T73]      addrconf_add_dev+0xe2/0x170
[ 2817.674189][   T73]      inet6_addr_add+0x12f/0xa40
[ 2817.674189][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2817.674189][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2817.674189][   T73]      netlink_rcv_skb+0x130/0x360
[ 2817.674189][   T73]      netlink_unicast+0x449/0x710
[ 2817.674189][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2817.674189][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2817.674189][   T73]      ___sys_sendmsg+0xee/0x170
[ 2817.674189][   T73]      __sys_sendmsg+0xcd/0x170
[ 2817.674189][   T73]      do_syscall_64+0xc6/0x1e0
[ 2817.674189][   T73] 
[ 2817.676627][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2817.676627][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2817.676627][   T73]      ipv6_find_idev+0x102/0x170
[ 2817.676627][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2817.676627][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2817.676627][   T73]      netlink_rcv_skb+0x130/0x360
[ 2817.676627][   T73]      netlink_unicast+0x449/0x710
[ 2817.676627][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2817.676627][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2817.676627][   T73]      ___sys_sendmsg+0xee/0x170
[ 2817.676627][   T73]      __sys_sendmsg+0xcd/0x170
[ 2817.676627][   T73]      do_syscall_64+0xc6/0x1e0
[ 2817.676627][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2817.676627][   T73] 
[ 2817.678598][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2817.678598][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2817.678598][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2817.678598][   T73]      ipv6_find_idev+0x102/0x170
[ 2817.678598][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2817.678598][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2817.678598][   T73]      netlink_rcv_skb+0x130/0x360
[ 2817.678598][   T73]      netlink_unicast+0x449/0x710
[ 2817.678598][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2817.678598][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2817.678598][   T73]      ___sys_sendmsg+0xee/0x170
[ 2817.678598][   T73]      __sys_sendmsg+0xcd/0x170
[ 2817.678598][   T73]      do_syscall_64+0xc6/0x1e0
[ 2817.678598][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2817.678598][   T73] 
[ 2817.680686][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2817.681048][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2817.681048][   T73]      netdev_get_by_index+0x5e/0x80
[ 2817.681048][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2817.681048][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2817.681048][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2817.681048][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2817.681048][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2817.681048][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2817.681048][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2817.681048][   T73]      addrconf_dad_begin+0x310/0x670
[ 2817.681048][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2817.681048][   T73]      process_one_work+0x84d/0x18a0
[ 2817.681048][   T73]      worker_thread+0x587/0xd30
[ 2817.681048][   T73]      kthread+0x28a/0x350
[ 2817.681048][   T73]      ret_from_fork+0x31/0x70
[ 2817.681048][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2817.681048][   T73] 
[ 2817.683310][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2817.683310][   T73]      netdev_get_by_index+0x5e/0x80
[ 2817.683310][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2817.683310][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2817.683310][   T73]      ip6_route_add+0x1c/0x140
[ 2817.683310][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2817.683310][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2817.683310][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2817.683310][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2817.683310][   T73]      netlink_rcv_skb+0x130/0x360
[ 2817.683310][   T73]      netlink_unicast+0x449/0x710
[ 2817.683310][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2817.683310][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2817.683310][   T73]      ___sys_sendmsg+0xee/0x170
[ 2817.683310][   T73]      __sys_sendmsg+0xcd/0x170
[ 2817.683310][   T73]      do_syscall_64+0xc6/0x1e0
[ 2817.683310][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2817.683310][   T73] 
[ 2817.685787][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2817.685787][   T73]      netdev_get_by_index+0x5e/0x80
[ 2817.685787][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2817.685787][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2817.685787][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2817.685787][   T73]      ipv6_add_addr+0x411/0x2000
[ 2817.685787][   T73]      inet6_addr_add+0x30e/0xa40
[ 2817.685787][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2817.685787][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2817.685787][   T73]      netlink_rcv_skb+0x130/0x360
[ 2817.685787][   T73]      netlink_unicast+0x449/0x710
[ 2817.685787][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2817.685787][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2817.685787][   T73]      ___sys_sendmsg+0xee/0x170
[ 2817.685787][   T73]      __sys_sendmsg+0xcd/0x170
[ 2817.685787][   T73]      do_syscall_64+0xc6/0x1e0
[ 2817.685787][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2817.685787][   T73] 
[ 2817.688256][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2817.688256][   T73]      netdev_get_by_index+0x5e/0x80
[ 2817.688256][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2817.688256][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2817.688256][   T73]      ip6_route_add+0x1c/0x140
[ 2817.688256][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2817.688256][   T73]      addrconf_add_dev+0xe2/0x170
[ 2817.688256][   T73]      inet6_addr_add+0x12f/0xa40
[ 2817.688256][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2817.688256][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2817.688256][   T73]      netlink_rcv_skb+0x130/0x360
[ 2817.688256][   T73]      netlink_unicast+0x449/0x710
[ 2817.688256][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2817.688256][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2817.688256][   T73]      ___sys_sendmsg+0xee/0x170
[ 2817.688256][   T73]      __sys_sendmsg+0xcd/0x170
[ 2817.688256][   T73]      do_syscall_64+0xc6/0x1e0
[ 2817.688256][   T73] 
[ 2817.690758][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2817.690758][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2817.690758][   T73]      ipv6_find_idev+0x102/0x170
[ 2817.690758][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2817.690758][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2817.690758][   T73]      netlink_rcv_skb+0x130/0x360
[ 2817.690758][   T73]      netlink_unicast+0x449/0x710
[ 2817.690758][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2817.690758][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2817.690758][   T73]      ___sys_sendmsg+0xee/0x170
[ 2817.690758][   T73]      __sys_sendmsg+0xcd/0x170
[ 2817.690758][   T73]      do_syscall_64+0xc6/0x1e0
[ 2817.690758][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2817.690758][   T73] 
[ 2817.692667][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2817.692667][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2817.692667][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2817.692667][   T73]      ipv6_find_idev+0x102/0x170
[ 2817.692667][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2817.692667][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2817.692667][   T73]      netlink_rcv_skb+0x130/0x360
[ 2817.692667][   T73]      netlink_unicast+0x449/0x710
[ 2817.692667][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2817.692667][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2817.692667][   T73]      ___sys_sendmsg+0xee/0x170
[ 2817.692667][   T73]      __sys_sendmsg+0xcd/0x170
[ 2817.692667][   T73]      do_syscall_64+0xc6/0x1e0
[ 2817.692667][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2817.692667][   T73] 
[ 2827.935757][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2827.936198][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2827.936198][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2827.936198][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2827.936198][   T73]      fib6_nh_init+0xa22/0x1580
[ 2827.936198][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2827.936198][   T73]      ip6_route_add+0x1c/0x140
[ 2827.936198][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2827.936198][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2827.936198][   T73]      netlink_rcv_skb+0x130/0x360
[ 2827.936198][   T73]      netlink_unicast+0x449/0x710
[ 2827.936198][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2827.936198][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2827.936198][   T73]      ___sys_sendmsg+0xee/0x170
[ 2827.936198][   T73]      __sys_sendmsg+0xcd/0x170
[ 2827.936198][   T73]      do_syscall_64+0xc6/0x1e0
[ 2827.936198][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2827.936198][   T73] 
[ 2827.938122][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2827.938122][   T73]      dst_init+0x84/0x4a0
[ 2827.938122][   T73]      dst_alloc+0x97/0x150
[ 2827.938122][   T73]      ip6_dst_alloc+0x23/0x90
[ 2827.938122][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2827.938122][   T73]      ip6_pol_route+0x56f/0x840
[ 2827.938122][   T73]      fib6_rule_lookup+0x456/0x630
[ 2827.938122][   T73]      ip6_route_input+0x59c/0xa50
[ 2827.938122][   T73]      ipv6_rcv+0x397/0x810
[ 2827.938122][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2827.938122][   T73]      process_backlog+0x101/0x620
[ 2827.938122][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2827.938122][   T73]      net_rx_action+0x495/0xbe0
[ 2827.938122][   T73]      __do_softirq+0x1b5/0x7f6
[ 2827.938122][   T73] 
[ 2827.939778][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2827.939778][   T73]      netdev_get_by_index+0x5e/0x80
[ 2827.939778][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2827.939778][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2827.939778][   T73]      ip6_route_add+0x1c/0x140
[ 2827.939778][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2827.939778][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2827.939778][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2827.939778][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2827.939778][   T73]      netlink_rcv_skb+0x130/0x360
[ 2827.939778][   T73]      netlink_unicast+0x449/0x710
[ 2827.939778][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2827.939778][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2827.939778][   T73]      ___sys_sendmsg+0xee/0x170
[ 2827.939778][   T73]      __sys_sendmsg+0xcd/0x170
[ 2827.939778][   T73]      do_syscall_64+0xc6/0x1e0
[ 2827.939778][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2827.939778][   T73] 
[ 2827.941800][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2827.941800][   T73]      netdev_get_by_index+0x5e/0x80
[ 2827.941800][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2827.941800][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2827.941800][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2827.941800][   T73]      ipv6_add_addr+0x411/0x2000
[ 2827.941800][   T73]      inet6_addr_add+0x30e/0xa40
[ 2827.941800][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2827.941800][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2827.941800][   T73]      netlink_rcv_skb+0x130/0x360
[ 2827.941800][   T73]      netlink_unicast+0x449/0x710
[ 2827.941800][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2827.941800][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2827.941800][   T73]      ___sys_sendmsg+0xee/0x170
[ 2827.941800][   T73]      __sys_sendmsg+0xcd/0x170
[ 2827.941800][   T73]      do_syscall_64+0xc6/0x1e0
[ 2827.941800][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2827.941800][   T73] 
[ 2827.943834][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2827.943834][   T73]      netdev_get_by_index+0x5e/0x80
[ 2827.943834][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2827.943834][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2827.943834][   T73]      ip6_route_add+0x1c/0x140
[ 2827.943834][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2827.943834][   T73]      addrconf_add_dev+0xe2/0x170
[ 2827.943834][   T73]      inet6_addr_add+0x12f/0xa40
[ 2827.943834][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2827.943834][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2827.943834][   T73]      netlink_rcv_skb+0x130/0x360
[ 2827.943834][   T73]      netlink_unicast+0x449/0x710
[ 2827.943834][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2827.943834][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2827.943834][   T73]      ___sys_sendmsg+0xee/0x170
[ 2827.943834][   T73]      __sys_sendmsg+0xcd/0x170
[ 2827.943834][   T73]      do_syscall_64+0xc6/0x1e0
[ 2827.943834][   T73] 
[ 2827.945817][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2827.945817][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2827.945817][   T73]      ipv6_find_idev+0x102/0x170
[ 2827.945817][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2827.945817][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2827.945817][   T73]      netlink_rcv_skb+0x130/0x360
[ 2827.945817][   T73]      netlink_unicast+0x449/0x710
[ 2827.945817][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2827.945817][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2827.945817][   T73]      ___sys_sendmsg+0xee/0x170
[ 2827.945817][   T73]      __sys_sendmsg+0xcd/0x170
[ 2827.945817][   T73]      do_syscall_64+0xc6/0x1e0
[ 2827.945817][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2827.945817][   T73] 
[ 2827.947374][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2827.947374][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2827.947374][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2827.947374][   T73]      ipv6_find_idev+0x102/0x170
[ 2827.947374][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2827.947374][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2827.947374][   T73]      netlink_rcv_skb+0x130/0x360
[ 2827.947374][   T73]      netlink_unicast+0x449/0x710
[ 2827.947374][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2827.947374][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2827.947374][   T73]      ___sys_sendmsg+0xee/0x170
[ 2827.947374][   T73]      __sys_sendmsg+0xcd/0x170
[ 2827.947374][   T73]      do_syscall_64+0xc6/0x1e0
[ 2827.947374][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2827.947374][   T73] 
[ 2827.949114][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2827.949404][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2827.949404][   T73]      netdev_get_by_index+0x5e/0x80
[ 2827.949404][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2827.949404][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2827.949404][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2827.949404][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2827.949404][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2827.949404][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2827.949404][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2827.949404][   T73]      addrconf_dad_begin+0x310/0x670
[ 2827.949404][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2827.949404][   T73]      process_one_work+0x84d/0x18a0
[ 2827.949404][   T73]      worker_thread+0x587/0xd30
[ 2827.949404][   T73]      kthread+0x28a/0x350
[ 2827.949404][   T73]      ret_from_fork+0x31/0x70
[ 2827.949404][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2827.949404][   T73] 
[ 2827.951332][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2827.951332][   T73]      netdev_get_by_index+0x5e/0x80
[ 2827.951332][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2827.951332][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2827.951332][   T73]      ip6_route_add+0x1c/0x140
[ 2827.951332][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2827.951332][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2827.951332][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2827.951332][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2827.951332][   T73]      netlink_rcv_skb+0x130/0x360
[ 2827.951332][   T73]      netlink_unicast+0x449/0x710
[ 2827.951332][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2827.951332][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2827.951332][   T73]      ___sys_sendmsg+0xee/0x170
[ 2827.951332][   T73]      __sys_sendmsg+0xcd/0x170
[ 2827.951332][   T73]      do_syscall_64+0xc6/0x1e0
[ 2827.951332][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2827.951332][   T73] 
[ 2827.953356][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2827.953356][   T73]      netdev_get_by_index+0x5e/0x80
[ 2827.953356][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2827.953356][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2827.953356][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2827.953356][   T73]      ipv6_add_addr+0x411/0x2000
[ 2827.953356][   T73]      inet6_addr_add+0x30e/0xa40
[ 2827.953356][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2827.953356][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2827.953356][   T73]      netlink_rcv_skb+0x130/0x360
[ 2827.953356][   T73]      netlink_unicast+0x449/0x710
[ 2827.953356][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2827.953356][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2827.953356][   T73]      ___sys_sendmsg+0xee/0x170
[ 2827.953356][   T73]      __sys_sendmsg+0xcd/0x170
[ 2827.953356][   T73]      do_syscall_64+0xc6/0x1e0
[ 2827.953356][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2827.953356][   T73] 
[ 2827.955373][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2827.955373][   T73]      netdev_get_by_index+0x5e/0x80
[ 2827.955373][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2827.955373][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2827.955373][   T73]      ip6_route_add+0x1c/0x140
[ 2827.955373][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2827.955373][   T73]      addrconf_add_dev+0xe2/0x170
[ 2827.955373][   T73]      inet6_addr_add+0x12f/0xa40
[ 2827.955373][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2827.955373][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2827.955373][   T73]      netlink_rcv_skb+0x130/0x360
[ 2827.955373][   T73]      netlink_unicast+0x449/0x710
[ 2827.955373][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2827.955373][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2827.955373][   T73]      ___sys_sendmsg+0xee/0x170
[ 2827.955373][   T73]      __sys_sendmsg+0xcd/0x170
[ 2827.955373][   T73]      do_syscall_64+0xc6/0x1e0
[ 2827.955373][   T73] 
[ 2827.957347][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2827.957347][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2827.957347][   T73]      ipv6_find_idev+0x102/0x170
[ 2827.957347][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2827.957347][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2827.957347][   T73]      netlink_rcv_skb+0x130/0x360
[ 2827.957347][   T73]      netlink_unicast+0x449/0x710
[ 2827.957347][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2827.957347][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2827.957347][   T73]      ___sys_sendmsg+0xee/0x170
[ 2827.957347][   T73]      __sys_sendmsg+0xcd/0x170
[ 2827.957347][   T73]      do_syscall_64+0xc6/0x1e0
[ 2827.957347][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2827.957347][   T73] 
[ 2827.958901][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2827.958901][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2827.958901][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2827.958901][   T73]      ipv6_find_idev+0x102/0x170
[ 2827.958901][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2827.958901][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2827.958901][   T73]      netlink_rcv_skb+0x130/0x360
[ 2827.958901][   T73]      netlink_unicast+0x449/0x710
[ 2827.958901][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2827.958901][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2827.958901][   T73]      ___sys_sendmsg+0xee/0x170
[ 2827.958901][   T73]      __sys_sendmsg+0xcd/0x170
[ 2827.958901][   T73]      do_syscall_64+0xc6/0x1e0
[ 2827.958901][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2827.958901][   T73] 
[ 2827.960604][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2827.960892][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2827.960892][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2827.960892][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2827.960892][   T73]      fib6_nh_init+0xa22/0x1580
[ 2827.960892][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2827.960892][   T73]      ip6_route_add+0x1c/0x140
[ 2827.960892][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2827.960892][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2827.960892][   T73]      netlink_rcv_skb+0x130/0x360
[ 2827.960892][   T73]      netlink_unicast+0x449/0x710
[ 2827.960892][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2827.960892][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2827.960892][   T73]      ___sys_sendmsg+0xee/0x170
[ 2827.960892][   T73]      __sys_sendmsg+0xcd/0x170
[ 2827.960892][   T73]      do_syscall_64+0xc6/0x1e0
[ 2827.960892][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2827.960892][   T73] 
[ 2827.962976][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2827.962976][   T73]      dst_init+0x84/0x4a0
[ 2827.962976][   T73]      dst_alloc+0x97/0x150
[ 2827.962976][   T73]      ip6_dst_alloc+0x23/0x90
[ 2827.962976][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2827.962976][   T73]      ip6_pol_route+0x56f/0x840
[ 2827.962976][   T73]      fib6_rule_lookup+0x456/0x630
[ 2827.962976][   T73]      ip6_route_input+0x59c/0xa50
[ 2827.962976][   T73]      ipv6_rcv+0x397/0x810
[ 2827.962976][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2827.962976][   T73]      process_backlog+0x101/0x620
[ 2827.962976][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2827.962976][   T73]      net_rx_action+0x495/0xbe0
[ 2827.962976][   T73]      __do_softirq+0x1b5/0x7f6
[ 2827.962976][   T73] 
[ 2827.964805][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2827.964805][   T73]      netdev_get_by_index+0x5e/0x80
[ 2827.964805][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2827.964805][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2827.964805][   T73]      ip6_route_add+0x1c/0x140
[ 2827.964805][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2827.964805][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2827.964805][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2827.964805][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2827.964805][   T73]      netlink_rcv_skb+0x130/0x360
[ 2827.964805][   T73]      netlink_unicast+0x449/0x710
[ 2827.964805][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2827.964805][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2827.964805][   T73]      ___sys_sendmsg+0xee/0x170
[ 2827.964805][   T73]      __sys_sendmsg+0xcd/0x170
[ 2827.964805][   T73]      do_syscall_64+0xc6/0x1e0
[ 2827.964805][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2827.964805][   T73] 
[ 2827.967065][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2827.967065][   T73]      netdev_get_by_index+0x5e/0x80
[ 2827.967065][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2827.967065][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2827.967065][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2827.967065][   T73]      ipv6_add_addr+0x411/0x2000
[ 2827.967065][   T73]      inet6_addr_add+0x30e/0xa40
[ 2827.967065][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2827.967065][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2827.967065][   T73]      netlink_rcv_skb+0x130/0x360
[ 2827.967065][   T73]      netlink_unicast+0x449/0x710
[ 2827.967065][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2827.967065][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2827.967065][   T73]      ___sys_sendmsg+0xee/0x170
[ 2827.967065][   T73]      __sys_sendmsg+0xcd/0x170
[ 2827.967065][   T73]      do_syscall_64+0xc6/0x1e0
[ 2827.967065][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2827.967065][   T73] 
[ 2827.969403][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2827.969403][   T73]      netdev_get_by_index+0x5e/0x80
[ 2827.969403][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2827.969403][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2827.969403][   T73]      ip6_route_add+0x1c/0x140
[ 2827.969403][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2827.969403][   T73]      addrconf_add_dev+0xe2/0x170
[ 2827.969403][   T73]      inet6_addr_add+0x12f/0xa40
[ 2827.969403][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2827.969403][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2827.969403][   T73]      netlink_rcv_skb+0x130/0x360
[ 2827.969403][   T73]      netlink_unicast+0x449/0x710
[ 2827.969403][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2827.969403][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2827.969403][   T73]      ___sys_sendmsg+0xee/0x170
[ 2827.969403][   T73]      __sys_sendmsg+0xcd/0x170
[ 2827.969403][   T73]      do_syscall_64+0xc6/0x1e0
[ 2827.969403][   T73] 
[ 2827.971565][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2827.971565][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2827.971565][   T73]      ipv6_find_idev+0x102/0x170
[ 2827.971565][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2827.971565][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2827.971565][   T73]      netlink_rcv_skb+0x130/0x360
[ 2827.971565][   T73]      netlink_unicast+0x449/0x710
[ 2827.971565][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2827.971565][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2827.971565][   T73]      ___sys_sendmsg+0xee/0x170
[ 2827.971565][   T73]      __sys_sendmsg+0xcd/0x170
[ 2827.971565][   T73]      do_syscall_64+0xc6/0x1e0
[ 2827.971565][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2827.971565][   T73] 
[ 2827.973305][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2827.973305][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2827.973305][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2827.973305][   T73]      ipv6_find_idev+0x102/0x170
[ 2827.973305][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2827.973305][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2827.973305][   T73]      netlink_rcv_skb+0x130/0x360
[ 2827.973305][   T73]      netlink_unicast+0x449/0x710
[ 2827.973305][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2827.973305][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2827.973305][   T73]      ___sys_sendmsg+0xee/0x170
[ 2827.973305][   T73]      __sys_sendmsg+0xcd/0x170
[ 2827.973305][   T73]      do_syscall_64+0xc6/0x1e0
[ 2827.973305][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2827.973305][   T73] 
[ 2827.975253][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2827.975534][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2827.975534][   T73]      netdev_get_by_index+0x5e/0x80
[ 2827.975534][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2827.975534][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2827.975534][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2827.975534][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2827.975534][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2827.975534][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2827.975534][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2827.975534][   T73]      addrconf_dad_begin+0x310/0x670
[ 2827.975534][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2827.975534][   T73]      process_one_work+0x84d/0x18a0
[ 2827.975534][   T73]      worker_thread+0x587/0xd30
[ 2827.975534][   T73]      kthread+0x28a/0x350
[ 2827.975534][   T73]      ret_from_fork+0x31/0x70
[ 2827.975534][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2827.975534][   T73] 
[ 2827.977704][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2827.977704][   T73]      netdev_get_by_index+0x5e/0x80
[ 2827.977704][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2827.977704][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2827.977704][   T73]      ip6_route_add+0x1c/0x140
[ 2827.977704][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2827.977704][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2827.977704][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2827.977704][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2827.977704][   T73]      netlink_rcv_skb+0x130/0x360
[ 2827.977704][   T73]      netlink_unicast+0x449/0x710
[ 2827.977704][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2827.977704][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2827.977704][   T73]      ___sys_sendmsg+0xee/0x170
[ 2827.977704][   T73]      __sys_sendmsg+0xcd/0x170
[ 2827.977704][   T73]      do_syscall_64+0xc6/0x1e0
[ 2827.977704][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2827.977704][   T73] 
[ 2827.980020][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2827.980020][   T73]      netdev_get_by_index+0x5e/0x80
[ 2827.980020][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2827.980020][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2827.980020][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2827.980020][   T73]      ipv6_add_addr+0x411/0x2000
[ 2827.980020][   T73]      inet6_addr_add+0x30e/0xa40
[ 2827.980020][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2827.980020][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2827.980020][   T73]      netlink_rcv_skb+0x130/0x360
[ 2827.980020][   T73]      netlink_unicast+0x449/0x710
[ 2827.980020][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2827.980020][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2827.980020][   T73]      ___sys_sendmsg+0xee/0x170
[ 2827.980020][   T73]      __sys_sendmsg+0xcd/0x170
[ 2827.980020][   T73]      do_syscall_64+0xc6/0x1e0
[ 2827.980020][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2827.980020][   T73] 
[ 2827.982229][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2827.982229][   T73]      netdev_get_by_index+0x5e/0x80
[ 2827.982229][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2827.982229][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2827.982229][   T73]      ip6_route_add+0x1c/0x140
[ 2827.982229][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2827.982229][   T73]      addrconf_add_dev+0xe2/0x170
[ 2827.982229][   T73]      inet6_addr_add+0x12f/0xa40
[ 2827.982229][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2827.982229][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2827.982229][   T73]      netlink_rcv_skb+0x130/0x360
[ 2827.982229][   T73]      netlink_unicast+0x449/0x710
[ 2827.982229][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2827.982229][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2827.982229][   T73]      ___sys_sendmsg+0xee/0x170
[ 2827.982229][   T73]      __sys_sendmsg+0xcd/0x170
[ 2827.982229][   T73]      do_syscall_64+0xc6/0x1e0
[ 2827.982229][   T73] 
[ 2827.984452][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2827.984452][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2827.984452][   T73]      ipv6_find_idev+0x102/0x170
[ 2827.984452][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2827.984452][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2827.984452][   T73]      netlink_rcv_skb+0x130/0x360
[ 2827.984452][   T73]      netlink_unicast+0x449/0x710
[ 2827.984452][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2827.984452][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2827.984452][   T73]      ___sys_sendmsg+0xee/0x170
[ 2827.984452][   T73]      __sys_sendmsg+0xcd/0x170
[ 2827.984452][   T73]      do_syscall_64+0xc6/0x1e0
[ 2827.984452][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2827.984452][   T73] 
[ 2827.986185][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2827.986185][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2827.986185][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2827.986185][   T73]      ipv6_find_idev+0x102/0x170
[ 2827.986185][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2827.986185][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2827.986185][   T73]      netlink_rcv_skb+0x130/0x360
[ 2827.986185][   T73]      netlink_unicast+0x449/0x710
[ 2827.986185][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2827.986185][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2827.986185][   T73]      ___sys_sendmsg+0xee/0x170
[ 2827.986185][   T73]      __sys_sendmsg+0xcd/0x170
[ 2827.986185][   T73]      do_syscall_64+0xc6/0x1e0
[ 2827.986185][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2827.986185][   T73] 
[ 2838.223811][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2838.224346][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2838.224346][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2838.224346][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2838.224346][   T73]      fib6_nh_init+0xa22/0x1580
[ 2838.224346][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2838.224346][   T73]      ip6_route_add+0x1c/0x140
[ 2838.224346][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2838.224346][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2838.224346][   T73]      netlink_rcv_skb+0x130/0x360
[ 2838.224346][   T73]      netlink_unicast+0x449/0x710
[ 2838.224346][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2838.224346][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2838.224346][   T73]      ___sys_sendmsg+0xee/0x170
[ 2838.224346][   T73]      __sys_sendmsg+0xcd/0x170
[ 2838.224346][   T73]      do_syscall_64+0xc6/0x1e0
[ 2838.224346][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2838.224346][   T73] 
[ 2838.226274][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2838.226274][   T73]      dst_init+0x84/0x4a0
[ 2838.226274][   T73]      dst_alloc+0x97/0x150
[ 2838.226274][   T73]      ip6_dst_alloc+0x23/0x90
[ 2838.226274][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2838.226274][   T73]      ip6_pol_route+0x56f/0x840
[ 2838.226274][   T73]      fib6_rule_lookup+0x456/0x630
[ 2838.226274][   T73]      ip6_route_input+0x59c/0xa50
[ 2838.226274][   T73]      ipv6_rcv+0x397/0x810
[ 2838.226274][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2838.226274][   T73]      process_backlog+0x101/0x620
[ 2838.226274][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2838.226274][   T73]      net_rx_action+0x495/0xbe0
[ 2838.226274][   T73]      __do_softirq+0x1b5/0x7f6
[ 2838.226274][   T73] 
[ 2838.227962][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2838.227962][   T73]      netdev_get_by_index+0x5e/0x80
[ 2838.227962][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2838.227962][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2838.227962][   T73]      ip6_route_add+0x1c/0x140
[ 2838.227962][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2838.227962][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2838.227962][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2838.227962][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2838.227962][   T73]      netlink_rcv_skb+0x130/0x360
[ 2838.227962][   T73]      netlink_unicast+0x449/0x710
[ 2838.227962][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2838.227962][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2838.227962][   T73]      ___sys_sendmsg+0xee/0x170
[ 2838.227962][   T73]      __sys_sendmsg+0xcd/0x170
[ 2838.227962][   T73]      do_syscall_64+0xc6/0x1e0
[ 2838.227962][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2838.227962][   T73] 
[ 2838.229988][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2838.229988][   T73]      netdev_get_by_index+0x5e/0x80
[ 2838.229988][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2838.229988][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2838.229988][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2838.229988][   T73]      ipv6_add_addr+0x411/0x2000
[ 2838.229988][   T73]      inet6_addr_add+0x30e/0xa40
[ 2838.229988][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2838.229988][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2838.229988][   T73]      netlink_rcv_skb+0x130/0x360
[ 2838.229988][   T73]      netlink_unicast+0x449/0x710
[ 2838.229988][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2838.229988][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2838.229988][   T73]      ___sys_sendmsg+0xee/0x170
[ 2838.229988][   T73]      __sys_sendmsg+0xcd/0x170
[ 2838.229988][   T73]      do_syscall_64+0xc6/0x1e0
[ 2838.229988][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2838.229988][   T73] 
[ 2838.232035][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2838.232035][   T73]      netdev_get_by_index+0x5e/0x80
[ 2838.232035][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2838.232035][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2838.232035][   T73]      ip6_route_add+0x1c/0x140
[ 2838.232035][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2838.232035][   T73]      addrconf_add_dev+0xe2/0x170
[ 2838.232035][   T73]      inet6_addr_add+0x12f/0xa40
[ 2838.232035][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2838.232035][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2838.232035][   T73]      netlink_rcv_skb+0x130/0x360
[ 2838.232035][   T73]      netlink_unicast+0x449/0x710
[ 2838.232035][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2838.232035][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2838.232035][   T73]      ___sys_sendmsg+0xee/0x170
[ 2838.232035][   T73]      __sys_sendmsg+0xcd/0x170
[ 2838.232035][   T73]      do_syscall_64+0xc6/0x1e0
[ 2838.232035][   T73] 
[ 2838.234037][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2838.234037][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2838.234037][   T73]      ipv6_find_idev+0x102/0x170
[ 2838.234037][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2838.234037][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2838.234037][   T73]      netlink_rcv_skb+0x130/0x360
[ 2838.234037][   T73]      netlink_unicast+0x449/0x710
[ 2838.234037][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2838.234037][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2838.234037][   T73]      ___sys_sendmsg+0xee/0x170
[ 2838.234037][   T73]      __sys_sendmsg+0xcd/0x170
[ 2838.234037][   T73]      do_syscall_64+0xc6/0x1e0
[ 2838.234037][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2838.234037][   T73] 
[ 2838.235594][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2838.235594][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2838.235594][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2838.235594][   T73]      ipv6_find_idev+0x102/0x170
[ 2838.235594][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2838.235594][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2838.235594][   T73]      netlink_rcv_skb+0x130/0x360
[ 2838.235594][   T73]      netlink_unicast+0x449/0x710
[ 2838.235594][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2838.235594][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2838.235594][   T73]      ___sys_sendmsg+0xee/0x170
[ 2838.235594][   T73]      __sys_sendmsg+0xcd/0x170
[ 2838.235594][   T73]      do_syscall_64+0xc6/0x1e0
[ 2838.235594][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2838.235594][   T73] 
[ 2838.237326][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2838.237617][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2838.237617][   T73]      netdev_get_by_index+0x5e/0x80
[ 2838.237617][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2838.237617][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2838.237617][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2838.237617][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2838.237617][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2838.237617][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2838.237617][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2838.237617][   T73]      addrconf_dad_begin+0x310/0x670
[ 2838.237617][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2838.237617][   T73]      process_one_work+0x84d/0x18a0
[ 2838.237617][   T73]      worker_thread+0x587/0xd30
[ 2838.237617][   T73]      kthread+0x28a/0x350
[ 2838.237617][   T73]      ret_from_fork+0x31/0x70
[ 2838.237617][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2838.237617][   T73] 
[ 2838.239553][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2838.239553][   T73]      netdev_get_by_index+0x5e/0x80
[ 2838.239553][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2838.239553][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2838.239553][   T73]      ip6_route_add+0x1c/0x140
[ 2838.239553][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2838.239553][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2838.239553][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2838.239553][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2838.239553][   T73]      netlink_rcv_skb+0x130/0x360
[ 2838.239553][   T73]      netlink_unicast+0x449/0x710
[ 2838.239553][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2838.239553][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2838.239553][   T73]      ___sys_sendmsg+0xee/0x170
[ 2838.239553][   T73]      __sys_sendmsg+0xcd/0x170
[ 2838.239553][   T73]      do_syscall_64+0xc6/0x1e0
[ 2838.239553][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2838.239553][   T73] 
[ 2838.241582][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2838.241582][   T73]      netdev_get_by_index+0x5e/0x80
[ 2838.241582][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2838.241582][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2838.241582][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2838.241582][   T73]      ipv6_add_addr+0x411/0x2000
[ 2838.241582][   T73]      inet6_addr_add+0x30e/0xa40
[ 2838.241582][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2838.241582][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2838.241582][   T73]      netlink_rcv_skb+0x130/0x360
[ 2838.241582][   T73]      netlink_unicast+0x449/0x710
[ 2838.241582][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2838.241582][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2838.241582][   T73]      ___sys_sendmsg+0xee/0x170
[ 2838.241582][   T73]      __sys_sendmsg+0xcd/0x170
[ 2838.241582][   T73]      do_syscall_64+0xc6/0x1e0
[ 2838.241582][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2838.241582][   T73] 
[ 2838.243602][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2838.243602][   T73]      netdev_get_by_index+0x5e/0x80
[ 2838.243602][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2838.243602][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2838.243602][   T73]      ip6_route_add+0x1c/0x140
[ 2838.243602][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2838.243602][   T73]      addrconf_add_dev+0xe2/0x170
[ 2838.243602][   T73]      inet6_addr_add+0x12f/0xa40
[ 2838.243602][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2838.243602][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2838.243602][   T73]      netlink_rcv_skb+0x130/0x360
[ 2838.243602][   T73]      netlink_unicast+0x449/0x710
[ 2838.243602][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2838.243602][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2838.243602][   T73]      ___sys_sendmsg+0xee/0x170
[ 2838.243602][   T73]      __sys_sendmsg+0xcd/0x170
[ 2838.243602][   T73]      do_syscall_64+0xc6/0x1e0
[ 2838.243602][   T73] 
[ 2838.245637][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2838.245637][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2838.245637][   T73]      ipv6_find_idev+0x102/0x170
[ 2838.245637][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2838.245637][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2838.245637][   T73]      netlink_rcv_skb+0x130/0x360
[ 2838.245637][   T73]      netlink_unicast+0x449/0x710
[ 2838.245637][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2838.245637][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2838.245637][   T73]      ___sys_sendmsg+0xee/0x170
[ 2838.245637][   T73]      __sys_sendmsg+0xcd/0x170
[ 2838.245637][   T73]      do_syscall_64+0xc6/0x1e0
[ 2838.245637][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2838.245637][   T73] 
[ 2838.247343][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2838.247343][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2838.247343][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2838.247343][   T73]      ipv6_find_idev+0x102/0x170
[ 2838.247343][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2838.247343][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2838.247343][   T73]      netlink_rcv_skb+0x130/0x360
[ 2838.247343][   T73]      netlink_unicast+0x449/0x710
[ 2838.247343][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2838.247343][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2838.247343][   T73]      ___sys_sendmsg+0xee/0x170
[ 2838.247343][   T73]      __sys_sendmsg+0xcd/0x170
[ 2838.247343][   T73]      do_syscall_64+0xc6/0x1e0
[ 2838.247343][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2838.247343][   T73] 
[ 2838.249233][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2838.249510][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2838.249510][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2838.249510][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2838.249510][   T73]      fib6_nh_init+0xa22/0x1580
[ 2838.249510][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2838.249510][   T73]      ip6_route_add+0x1c/0x140
[ 2838.249510][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2838.249510][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2838.249510][   T73]      netlink_rcv_skb+0x130/0x360
[ 2838.249510][   T73]      netlink_unicast+0x449/0x710
[ 2838.249510][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2838.249510][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2838.249510][   T73]      ___sys_sendmsg+0xee/0x170
[ 2838.249510][   T73]      __sys_sendmsg+0xcd/0x170
[ 2838.249510][   T73]      do_syscall_64+0xc6/0x1e0
[ 2838.249510][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2838.249510][   T73] 
[ 2838.251600][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2838.251600][   T73]      dst_init+0x84/0x4a0
[ 2838.251600][   T73]      dst_alloc+0x97/0x150
[ 2838.251600][   T73]      ip6_dst_alloc+0x23/0x90
[ 2838.251600][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2838.251600][   T73]      ip6_pol_route+0x56f/0x840
[ 2838.251600][   T73]      fib6_rule_lookup+0x456/0x630
[ 2838.251600][   T73]      ip6_route_input+0x59c/0xa50
[ 2838.251600][   T73]      ipv6_rcv+0x397/0x810
[ 2838.251600][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2838.251600][   T73]      process_backlog+0x101/0x620
[ 2838.251600][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2838.251600][   T73]      net_rx_action+0x495/0xbe0
[ 2838.251600][   T73]      __do_softirq+0x1b5/0x7f6
[ 2838.251600][   T73] 
[ 2838.253505][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2838.253505][   T73]      netdev_get_by_index+0x5e/0x80
[ 2838.253505][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2838.253505][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2838.253505][   T73]      ip6_route_add+0x1c/0x140
[ 2838.253505][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2838.253505][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2838.253505][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2838.253505][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2838.253505][   T73]      netlink_rcv_skb+0x130/0x360
[ 2838.253505][   T73]      netlink_unicast+0x449/0x710
[ 2838.253505][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2838.253505][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2838.253505][   T73]      ___sys_sendmsg+0xee/0x170
[ 2838.253505][   T73]      __sys_sendmsg+0xcd/0x170
[ 2838.253505][   T73]      do_syscall_64+0xc6/0x1e0
[ 2838.253505][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2838.253505][   T73] 
[ 2838.255825][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2838.255825][   T73]      netdev_get_by_index+0x5e/0x80
[ 2838.255825][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2838.255825][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2838.255825][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2838.255825][   T73]      ipv6_add_addr+0x411/0x2000
[ 2838.255825][   T73]      inet6_addr_add+0x30e/0xa40
[ 2838.255825][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2838.255825][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2838.255825][   T73]      netlink_rcv_skb+0x130/0x360
[ 2838.255825][   T73]      netlink_unicast+0x449/0x710
[ 2838.255825][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2838.255825][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2838.255825][   T73]      ___sys_sendmsg+0xee/0x170
[ 2838.255825][   T73]      __sys_sendmsg+0xcd/0x170
[ 2838.255825][   T73]      do_syscall_64+0xc6/0x1e0
[ 2838.255825][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2838.255825][   T73] 
[ 2838.258116][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2838.258116][   T73]      netdev_get_by_index+0x5e/0x80
[ 2838.258116][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2838.258116][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2838.258116][   T73]      ip6_route_add+0x1c/0x140
[ 2838.258116][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2838.258116][   T73]      addrconf_add_dev+0xe2/0x170
[ 2838.258116][   T73]      inet6_addr_add+0x12f/0xa40
[ 2838.258116][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2838.258116][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2838.258116][   T73]      netlink_rcv_skb+0x130/0x360
[ 2838.258116][   T73]      netlink_unicast+0x449/0x710
[ 2838.258116][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2838.258116][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2838.258116][   T73]      ___sys_sendmsg+0xee/0x170
[ 2838.258116][   T73]      __sys_sendmsg+0xcd/0x170
[ 2838.258116][   T73]      do_syscall_64+0xc6/0x1e0
[ 2838.258116][   T73] 
[ 2838.260276][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2838.260276][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2838.260276][   T73]      ipv6_find_idev+0x102/0x170
[ 2838.260276][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2838.260276][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2838.260276][   T73]      netlink_rcv_skb+0x130/0x360
[ 2838.260276][   T73]      netlink_unicast+0x449/0x710
[ 2838.260276][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2838.260276][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2838.260276][   T73]      ___sys_sendmsg+0xee/0x170
[ 2838.260276][   T73]      __sys_sendmsg+0xcd/0x170
[ 2838.260276][   T73]      do_syscall_64+0xc6/0x1e0
[ 2838.260276][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2838.260276][   T73] 
[ 2838.262080][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2838.262080][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2838.262080][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2838.262080][   T73]      ipv6_find_idev+0x102/0x170
[ 2838.262080][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2838.262080][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2838.262080][   T73]      netlink_rcv_skb+0x130/0x360
[ 2838.262080][   T73]      netlink_unicast+0x449/0x710
[ 2838.262080][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2838.262080][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2838.262080][   T73]      ___sys_sendmsg+0xee/0x170
[ 2838.262080][   T73]      __sys_sendmsg+0xcd/0x170
[ 2838.262080][   T73]      do_syscall_64+0xc6/0x1e0
[ 2838.262080][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2838.262080][   T73] 
[ 2838.264036][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2838.264326][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2838.264326][   T73]      netdev_get_by_index+0x5e/0x80
[ 2838.264326][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2838.264326][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2838.264326][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2838.264326][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2838.264326][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2838.264326][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2838.264326][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2838.264326][   T73]      addrconf_dad_begin+0x310/0x670
[ 2838.264326][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2838.264326][   T73]      process_one_work+0x84d/0x18a0
[ 2838.264326][   T73]      worker_thread+0x587/0xd30
[ 2838.264326][   T73]      kthread+0x28a/0x350
[ 2838.264326][   T73]      ret_from_fork+0x31/0x70
[ 2838.264326][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2838.264326][   T73] 
[ 2838.266520][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2838.266520][   T73]      netdev_get_by_index+0x5e/0x80
[ 2838.266520][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2838.266520][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2838.266520][   T73]      ip6_route_add+0x1c/0x140
[ 2838.266520][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2838.266520][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2838.266520][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2838.266520][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2838.266520][   T73]      netlink_rcv_skb+0x130/0x360
[ 2838.266520][   T73]      netlink_unicast+0x449/0x710
[ 2838.266520][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2838.266520][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2838.266520][   T73]      ___sys_sendmsg+0xee/0x170
[ 2838.266520][   T73]      __sys_sendmsg+0xcd/0x170
[ 2838.266520][   T73]      do_syscall_64+0xc6/0x1e0
[ 2838.266520][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2838.266520][   T73] 
[ 2838.268788][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2838.268788][   T73]      netdev_get_by_index+0x5e/0x80
[ 2838.268788][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2838.268788][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2838.268788][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2838.268788][   T73]      ipv6_add_addr+0x411/0x2000
[ 2838.268788][   T73]      inet6_addr_add+0x30e/0xa40
[ 2838.268788][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2838.268788][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2838.268788][   T73]      netlink_rcv_skb+0x130/0x360
[ 2838.268788][   T73]      netlink_unicast+0x449/0x710
[ 2838.268788][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2838.268788][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2838.268788][   T73]      ___sys_sendmsg+0xee/0x170
[ 2838.268788][   T73]      __sys_sendmsg+0xcd/0x170
[ 2838.268788][   T73]      do_syscall_64+0xc6/0x1e0
[ 2838.268788][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2838.268788][   T73] 
[ 2838.270993][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2838.270993][   T73]      netdev_get_by_index+0x5e/0x80
[ 2838.270993][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2838.270993][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2838.270993][   T73]      ip6_route_add+0x1c/0x140
[ 2838.270993][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2838.270993][   T73]      addrconf_add_dev+0xe2/0x170
[ 2838.270993][   T73]      inet6_addr_add+0x12f/0xa40
[ 2838.270993][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2838.270993][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2838.270993][   T73]      netlink_rcv_skb+0x130/0x360
[ 2838.270993][   T73]      netlink_unicast+0x449/0x710
[ 2838.270993][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2838.270993][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2838.270993][   T73]      ___sys_sendmsg+0xee/0x170
[ 2838.270993][   T73]      __sys_sendmsg+0xcd/0x170
[ 2838.270993][   T73]      do_syscall_64+0xc6/0x1e0
[ 2838.270993][   T73] 
[ 2838.273298][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2838.273298][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2838.273298][   T73]      ipv6_find_idev+0x102/0x170
[ 2838.273298][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2838.273298][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2838.273298][   T73]      netlink_rcv_skb+0x130/0x360
[ 2838.273298][   T73]      netlink_unicast+0x449/0x710
[ 2838.273298][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2838.273298][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2838.273298][   T73]      ___sys_sendmsg+0xee/0x170
[ 2838.273298][   T73]      __sys_sendmsg+0xcd/0x170
[ 2838.273298][   T73]      do_syscall_64+0xc6/0x1e0
[ 2838.273298][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2838.273298][   T73] 
[ 2838.275038][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2838.275038][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2838.275038][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2838.275038][   T73]      ipv6_find_idev+0x102/0x170
[ 2838.275038][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2838.275038][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2838.275038][   T73]      netlink_rcv_skb+0x130/0x360
[ 2838.275038][   T73]      netlink_unicast+0x449/0x710
[ 2838.275038][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2838.275038][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2838.275038][   T73]      ___sys_sendmsg+0xee/0x170
[ 2838.275038][   T73]      __sys_sendmsg+0xcd/0x170
[ 2838.275038][   T73]      do_syscall_64+0xc6/0x1e0
[ 2838.275038][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2838.275038][   T73] 
[ 2848.519810][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2848.520299][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2848.520299][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2848.520299][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2848.520299][   T73]      fib6_nh_init+0xa22/0x1580
[ 2848.520299][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2848.520299][   T73]      ip6_route_add+0x1c/0x140
[ 2848.520299][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2848.520299][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2848.520299][   T73]      netlink_rcv_skb+0x130/0x360
[ 2848.520299][   T73]      netlink_unicast+0x449/0x710
[ 2848.520299][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2848.520299][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2848.520299][   T73]      ___sys_sendmsg+0xee/0x170
[ 2848.520299][   T73]      __sys_sendmsg+0xcd/0x170
[ 2848.520299][   T73]      do_syscall_64+0xc6/0x1e0
[ 2848.520299][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2848.520299][   T73] 
[ 2848.522208][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2848.522208][   T73]      dst_init+0x84/0x4a0
[ 2848.522208][   T73]      dst_alloc+0x97/0x150
[ 2848.522208][   T73]      ip6_dst_alloc+0x23/0x90
[ 2848.522208][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2848.522208][   T73]      ip6_pol_route+0x56f/0x840
[ 2848.522208][   T73]      fib6_rule_lookup+0x456/0x630
[ 2848.522208][   T73]      ip6_route_input+0x59c/0xa50
[ 2848.522208][   T73]      ipv6_rcv+0x397/0x810
[ 2848.522208][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2848.522208][   T73]      process_backlog+0x101/0x620
[ 2848.522208][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2848.522208][   T73]      net_rx_action+0x495/0xbe0
[ 2848.522208][   T73]      __do_softirq+0x1b5/0x7f6
[ 2848.522208][   T73] 
[ 2848.523849][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2848.523849][   T73]      netdev_get_by_index+0x5e/0x80
[ 2848.523849][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2848.523849][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2848.523849][   T73]      ip6_route_add+0x1c/0x140
[ 2848.523849][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2848.523849][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2848.523849][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2848.523849][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2848.523849][   T73]      netlink_rcv_skb+0x130/0x360
[ 2848.523849][   T73]      netlink_unicast+0x449/0x710
[ 2848.523849][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2848.523849][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2848.523849][   T73]      ___sys_sendmsg+0xee/0x170
[ 2848.523849][   T73]      __sys_sendmsg+0xcd/0x170
[ 2848.523849][   T73]      do_syscall_64+0xc6/0x1e0
[ 2848.523849][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2848.523849][   T73] 
[ 2848.525846][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2848.525846][   T73]      netdev_get_by_index+0x5e/0x80
[ 2848.525846][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2848.525846][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2848.525846][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2848.525846][   T73]      ipv6_add_addr+0x411/0x2000
[ 2848.525846][   T73]      inet6_addr_add+0x30e/0xa40
[ 2848.525846][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2848.525846][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2848.525846][   T73]      netlink_rcv_skb+0x130/0x360
[ 2848.525846][   T73]      netlink_unicast+0x449/0x710
[ 2848.525846][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2848.525846][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2848.525846][   T73]      ___sys_sendmsg+0xee/0x170
[ 2848.525846][   T73]      __sys_sendmsg+0xcd/0x170
[ 2848.525846][   T73]      do_syscall_64+0xc6/0x1e0
[ 2848.525846][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2848.525846][   T73] 
[ 2848.527852][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2848.527852][   T73]      netdev_get_by_index+0x5e/0x80
[ 2848.527852][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2848.527852][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2848.527852][   T73]      ip6_route_add+0x1c/0x140
[ 2848.527852][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2848.527852][   T73]      addrconf_add_dev+0xe2/0x170
[ 2848.527852][   T73]      inet6_addr_add+0x12f/0xa40
[ 2848.527852][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2848.527852][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2848.527852][   T73]      netlink_rcv_skb+0x130/0x360
[ 2848.527852][   T73]      netlink_unicast+0x449/0x710
[ 2848.527852][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2848.527852][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2848.527852][   T73]      ___sys_sendmsg+0xee/0x170
[ 2848.527852][   T73]      __sys_sendmsg+0xcd/0x170
[ 2848.527852][   T73]      do_syscall_64+0xc6/0x1e0
[ 2848.527852][   T73] 
[ 2848.529824][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2848.529824][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2848.529824][   T73]      ipv6_find_idev+0x102/0x170
[ 2848.529824][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2848.529824][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2848.529824][   T73]      netlink_rcv_skb+0x130/0x360
[ 2848.529824][   T73]      netlink_unicast+0x449/0x710
[ 2848.529824][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2848.529824][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2848.529824][   T73]      ___sys_sendmsg+0xee/0x170
[ 2848.529824][   T73]      __sys_sendmsg+0xcd/0x170
[ 2848.529824][   T73]      do_syscall_64+0xc6/0x1e0
[ 2848.529824][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2848.529824][   T73] 
[ 2848.531358][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2848.531358][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2848.531358][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2848.531358][   T73]      ipv6_find_idev+0x102/0x170
[ 2848.531358][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2848.531358][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2848.531358][   T73]      netlink_rcv_skb+0x130/0x360
[ 2848.531358][   T73]      netlink_unicast+0x449/0x710
[ 2848.531358][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2848.531358][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2848.531358][   T73]      ___sys_sendmsg+0xee/0x170
[ 2848.531358][   T73]      __sys_sendmsg+0xcd/0x170
[ 2848.531358][   T73]      do_syscall_64+0xc6/0x1e0
[ 2848.531358][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2848.531358][   T73] 
[ 2848.533058][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2848.533337][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2848.533337][   T73]      netdev_get_by_index+0x5e/0x80
[ 2848.533337][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2848.533337][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2848.533337][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2848.533337][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2848.533337][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2848.533337][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2848.533337][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2848.533337][   T73]      addrconf_dad_begin+0x310/0x670
[ 2848.533337][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2848.533337][   T73]      process_one_work+0x84d/0x18a0
[ 2848.533337][   T73]      worker_thread+0x587/0xd30
[ 2848.533337][   T73]      kthread+0x28a/0x350
[ 2848.533337][   T73]      ret_from_fork+0x31/0x70
[ 2848.533337][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2848.533337][   T73] 
[ 2848.535244][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2848.535244][   T73]      netdev_get_by_index+0x5e/0x80
[ 2848.535244][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2848.535244][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2848.535244][   T73]      ip6_route_add+0x1c/0x140
[ 2848.535244][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2848.535244][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2848.535244][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2848.535244][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2848.535244][   T73]      netlink_rcv_skb+0x130/0x360
[ 2848.535244][   T73]      netlink_unicast+0x449/0x710
[ 2848.535244][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2848.535244][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2848.535244][   T73]      ___sys_sendmsg+0xee/0x170
[ 2848.535244][   T73]      __sys_sendmsg+0xcd/0x170
[ 2848.535244][   T73]      do_syscall_64+0xc6/0x1e0
[ 2848.535244][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2848.535244][   T73] 
[ 2848.537235][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2848.537235][   T73]      netdev_get_by_index+0x5e/0x80
[ 2848.537235][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2848.537235][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2848.537235][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2848.537235][   T73]      ipv6_add_addr+0x411/0x2000
[ 2848.537235][   T73]      inet6_addr_add+0x30e/0xa40
[ 2848.537235][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2848.537235][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2848.537235][   T73]      netlink_rcv_skb+0x130/0x360
[ 2848.537235][   T73]      netlink_unicast+0x449/0x710
[ 2848.537235][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2848.537235][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2848.537235][   T73]      ___sys_sendmsg+0xee/0x170
[ 2848.537235][   T73]      __sys_sendmsg+0xcd/0x170
[ 2848.537235][   T73]      do_syscall_64+0xc6/0x1e0
[ 2848.537235][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2848.537235][   T73] 
[ 2848.539222][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2848.539222][   T73]      netdev_get_by_index+0x5e/0x80
[ 2848.539222][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2848.539222][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2848.539222][   T73]      ip6_route_add+0x1c/0x140
[ 2848.539222][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2848.539222][   T73]      addrconf_add_dev+0xe2/0x170
[ 2848.539222][   T73]      inet6_addr_add+0x12f/0xa40
[ 2848.539222][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2848.539222][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2848.539222][   T73]      netlink_rcv_skb+0x130/0x360
[ 2848.539222][   T73]      netlink_unicast+0x449/0x710
[ 2848.539222][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2848.539222][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2848.539222][   T73]      ___sys_sendmsg+0xee/0x170
[ 2848.539222][   T73]      __sys_sendmsg+0xcd/0x170
[ 2848.539222][   T73]      do_syscall_64+0xc6/0x1e0
[ 2848.539222][   T73] 
[ 2848.541184][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2848.541184][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2848.541184][   T73]      ipv6_find_idev+0x102/0x170
[ 2848.541184][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2848.541184][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2848.541184][   T73]      netlink_rcv_skb+0x130/0x360
[ 2848.541184][   T73]      netlink_unicast+0x449/0x710
[ 2848.541184][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2848.541184][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2848.541184][   T73]      ___sys_sendmsg+0xee/0x170
[ 2848.541184][   T73]      __sys_sendmsg+0xcd/0x170
[ 2848.541184][   T73]      do_syscall_64+0xc6/0x1e0
[ 2848.541184][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2848.541184][   T73] 
[ 2848.542721][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2848.542721][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2848.542721][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2848.542721][   T73]      ipv6_find_idev+0x102/0x170
[ 2848.542721][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2848.542721][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2848.542721][   T73]      netlink_rcv_skb+0x130/0x360
[ 2848.542721][   T73]      netlink_unicast+0x449/0x710
[ 2848.542721][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2848.542721][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2848.542721][   T73]      ___sys_sendmsg+0xee/0x170
[ 2848.542721][   T73]      __sys_sendmsg+0xcd/0x170
[ 2848.542721][   T73]      do_syscall_64+0xc6/0x1e0
[ 2848.542721][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2848.542721][   T73] 
[ 2848.544406][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2848.544676][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2848.544676][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2848.544676][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2848.544676][   T73]      fib6_nh_init+0xa22/0x1580
[ 2848.544676][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2848.544676][   T73]      ip6_route_add+0x1c/0x140
[ 2848.544676][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2848.544676][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2848.544676][   T73]      netlink_rcv_skb+0x130/0x360
[ 2848.544676][   T73]      netlink_unicast+0x449/0x710
[ 2848.544676][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2848.544676][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2848.544676][   T73]      ___sys_sendmsg+0xee/0x170
[ 2848.544676][   T73]      __sys_sendmsg+0xcd/0x170
[ 2848.544676][   T73]      do_syscall_64+0xc6/0x1e0
[ 2848.544676][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2848.544676][   T73] 
[ 2848.546681][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2848.546681][   T73]      dst_init+0x84/0x4a0
[ 2848.546681][   T73]      dst_alloc+0x97/0x150
[ 2848.546681][   T73]      ip6_dst_alloc+0x23/0x90
[ 2848.546681][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2848.546681][   T73]      ip6_pol_route+0x56f/0x840
[ 2848.546681][   T73]      fib6_rule_lookup+0x456/0x630
[ 2848.546681][   T73]      ip6_route_input+0x59c/0xa50
[ 2848.546681][   T73]      ipv6_rcv+0x397/0x810
[ 2848.546681][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2848.546681][   T73]      process_backlog+0x101/0x620
[ 2848.546681][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2848.546681][   T73]      net_rx_action+0x495/0xbe0
[ 2848.546681][   T73]      __do_softirq+0x1b5/0x7f6
[ 2848.546681][   T73] 
[ 2848.548490][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2848.548490][   T73]      netdev_get_by_index+0x5e/0x80
[ 2848.548490][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2848.548490][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2848.548490][   T73]      ip6_route_add+0x1c/0x140
[ 2848.548490][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2848.548490][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2848.548490][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2848.548490][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2848.548490][   T73]      netlink_rcv_skb+0x130/0x360
[ 2848.548490][   T73]      netlink_unicast+0x449/0x710
[ 2848.548490][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2848.548490][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2848.548490][   T73]      ___sys_sendmsg+0xee/0x170
[ 2848.548490][   T73]      __sys_sendmsg+0xcd/0x170
[ 2848.548490][   T73]      do_syscall_64+0xc6/0x1e0
[ 2848.548490][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2848.548490][   T73] 
[ 2848.550727][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2848.550727][   T73]      netdev_get_by_index+0x5e/0x80
[ 2848.550727][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2848.550727][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2848.550727][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2848.550727][   T73]      ipv6_add_addr+0x411/0x2000
[ 2848.550727][   T73]      inet6_addr_add+0x30e/0xa40
[ 2848.550727][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2848.550727][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2848.550727][   T73]      netlink_rcv_skb+0x130/0x360
[ 2848.550727][   T73]      netlink_unicast+0x449/0x710
[ 2848.550727][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2848.550727][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2848.550727][   T73]      ___sys_sendmsg+0xee/0x170
[ 2848.550727][   T73]      __sys_sendmsg+0xcd/0x170
[ 2848.550727][   T73]      do_syscall_64+0xc6/0x1e0
[ 2848.550727][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2848.550727][   T73] 
[ 2848.553078][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2848.553078][   T73]      netdev_get_by_index+0x5e/0x80
[ 2848.553078][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2848.553078][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2848.553078][   T73]      ip6_route_add+0x1c/0x140
[ 2848.553078][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2848.553078][   T73]      addrconf_add_dev+0xe2/0x170
[ 2848.553078][   T73]      inet6_addr_add+0x12f/0xa40
[ 2848.553078][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2848.553078][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2848.553078][   T73]      netlink_rcv_skb+0x130/0x360
[ 2848.553078][   T73]      netlink_unicast+0x449/0x710
[ 2848.553078][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2848.553078][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2848.553078][   T73]      ___sys_sendmsg+0xee/0x170
[ 2848.553078][   T73]      __sys_sendmsg+0xcd/0x170
[ 2848.553078][   T73]      do_syscall_64+0xc6/0x1e0
[ 2848.553078][   T73] 
[ 2848.555278][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2848.555278][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2848.555278][   T73]      ipv6_find_idev+0x102/0x170
[ 2848.555278][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2848.555278][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2848.555278][   T73]      netlink_rcv_skb+0x130/0x360
[ 2848.555278][   T73]      netlink_unicast+0x449/0x710
[ 2848.555278][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2848.555278][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2848.555278][   T73]      ___sys_sendmsg+0xee/0x170
[ 2848.555278][   T73]      __sys_sendmsg+0xcd/0x170
[ 2848.555278][   T73]      do_syscall_64+0xc6/0x1e0
[ 2848.555278][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2848.555278][   T73] 
[ 2848.556997][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2848.556997][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2848.556997][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2848.556997][   T73]      ipv6_find_idev+0x102/0x170
[ 2848.556997][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2848.556997][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2848.556997][   T73]      netlink_rcv_skb+0x130/0x360
[ 2848.556997][   T73]      netlink_unicast+0x449/0x710
[ 2848.556997][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2848.556997][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2848.556997][   T73]      ___sys_sendmsg+0xee/0x170
[ 2848.556997][   T73]      __sys_sendmsg+0xcd/0x170
[ 2848.556997][   T73]      do_syscall_64+0xc6/0x1e0
[ 2848.556997][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2848.556997][   T73] 
[ 2848.558871][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2848.559146][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2848.559146][   T73]      netdev_get_by_index+0x5e/0x80
[ 2848.559146][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2848.559146][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2848.559146][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2848.559146][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2848.559146][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2848.559146][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2848.559146][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2848.559146][   T73]      addrconf_dad_begin+0x310/0x670
[ 2848.559146][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2848.559146][   T73]      process_one_work+0x84d/0x18a0
[ 2848.559146][   T73]      worker_thread+0x587/0xd30
[ 2848.559146][   T73]      kthread+0x28a/0x350
[ 2848.559146][   T73]      ret_from_fork+0x31/0x70
[ 2848.559146][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2848.559146][   T73] 
[ 2848.561301][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2848.561301][   T73]      netdev_get_by_index+0x5e/0x80
[ 2848.561301][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2848.561301][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2848.561301][   T73]      ip6_route_add+0x1c/0x140
[ 2848.561301][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2848.561301][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2848.561301][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2848.561301][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2848.561301][   T73]      netlink_rcv_skb+0x130/0x360
[ 2848.561301][   T73]      netlink_unicast+0x449/0x710
[ 2848.561301][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2848.561301][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2848.561301][   T73]      ___sys_sendmsg+0xee/0x170
[ 2848.561301][   T73]      __sys_sendmsg+0xcd/0x170
[ 2848.561301][   T73]      do_syscall_64+0xc6/0x1e0
[ 2848.561301][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2848.561301][   T73] 
[ 2848.563603][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2848.563603][   T73]      netdev_get_by_index+0x5e/0x80
[ 2848.563603][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2848.563603][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2848.563603][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2848.563603][   T73]      ipv6_add_addr+0x411/0x2000
[ 2848.563603][   T73]      inet6_addr_add+0x30e/0xa40
[ 2848.563603][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2848.563603][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2848.563603][   T73]      netlink_rcv_skb+0x130/0x360
[ 2848.563603][   T73]      netlink_unicast+0x449/0x710
[ 2848.563603][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2848.563603][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2848.563603][   T73]      ___sys_sendmsg+0xee/0x170
[ 2848.563603][   T73]      __sys_sendmsg+0xcd/0x170
[ 2848.563603][   T73]      do_syscall_64+0xc6/0x1e0
[ 2848.563603][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2848.563603][   T73] 
[ 2848.565830][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2848.565830][   T73]      netdev_get_by_index+0x5e/0x80
[ 2848.565830][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2848.565830][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2848.565830][   T73]      ip6_route_add+0x1c/0x140
[ 2848.565830][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2848.565830][   T73]      addrconf_add_dev+0xe2/0x170
[ 2848.565830][   T73]      inet6_addr_add+0x12f/0xa40
[ 2848.565830][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2848.565830][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2848.565830][   T73]      netlink_rcv_skb+0x130/0x360
[ 2848.565830][   T73]      netlink_unicast+0x449/0x710
[ 2848.565830][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2848.565830][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2848.565830][   T73]      ___sys_sendmsg+0xee/0x170
[ 2848.565830][   T73]      __sys_sendmsg+0xcd/0x170
[ 2848.565830][   T73]      do_syscall_64+0xc6/0x1e0
[ 2848.565830][   T73] 
[ 2848.567965][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2848.567965][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2848.567965][   T73]      ipv6_find_idev+0x102/0x170
[ 2848.567965][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2848.567965][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2848.567965][   T73]      netlink_rcv_skb+0x130/0x360
[ 2848.567965][   T73]      netlink_unicast+0x449/0x710
[ 2848.567965][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2848.567965][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2848.567965][   T73]      ___sys_sendmsg+0xee/0x170
[ 2848.567965][   T73]      __sys_sendmsg+0xcd/0x170
[ 2848.567965][   T73]      do_syscall_64+0xc6/0x1e0
[ 2848.567965][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2848.567965][   T73] 
[ 2848.569680][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2848.569680][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2848.569680][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2848.569680][   T73]      ipv6_find_idev+0x102/0x170
[ 2848.569680][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2848.569680][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2848.569680][   T73]      netlink_rcv_skb+0x130/0x360
[ 2848.569680][   T73]      netlink_unicast+0x449/0x710
[ 2848.569680][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2848.569680][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2848.569680][   T73]      ___sys_sendmsg+0xee/0x170
[ 2848.569680][   T73]      __sys_sendmsg+0xcd/0x170
[ 2848.569680][   T73]      do_syscall_64+0xc6/0x1e0
[ 2848.569680][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2848.569680][   T73] 
[ 2858.807768][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2858.808198][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2858.808198][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2858.808198][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2858.808198][   T73]      fib6_nh_init+0xa22/0x1580
[ 2858.808198][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2858.808198][   T73]      ip6_route_add+0x1c/0x140
[ 2858.808198][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2858.808198][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2858.808198][   T73]      netlink_rcv_skb+0x130/0x360
[ 2858.808198][   T73]      netlink_unicast+0x449/0x710
[ 2858.808198][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2858.808198][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2858.808198][   T73]      ___sys_sendmsg+0xee/0x170
[ 2858.808198][   T73]      __sys_sendmsg+0xcd/0x170
[ 2858.808198][   T73]      do_syscall_64+0xc6/0x1e0
[ 2858.808198][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2858.808198][   T73] 
[ 2858.810088][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2858.810088][   T73]      dst_init+0x84/0x4a0
[ 2858.810088][   T73]      dst_alloc+0x97/0x150
[ 2858.810088][   T73]      ip6_dst_alloc+0x23/0x90
[ 2858.810088][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2858.810088][   T73]      ip6_pol_route+0x56f/0x840
[ 2858.810088][   T73]      fib6_rule_lookup+0x456/0x630
[ 2858.810088][   T73]      ip6_route_input+0x59c/0xa50
[ 2858.810088][   T73]      ipv6_rcv+0x397/0x810
[ 2858.810088][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2858.810088][   T73]      process_backlog+0x101/0x620
[ 2858.810088][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2858.810088][   T73]      net_rx_action+0x495/0xbe0
[ 2858.810088][   T73]      __do_softirq+0x1b5/0x7f6
[ 2858.810088][   T73] 
[ 2858.811732][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2858.811732][   T73]      netdev_get_by_index+0x5e/0x80
[ 2858.811732][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2858.811732][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2858.811732][   T73]      ip6_route_add+0x1c/0x140
[ 2858.811732][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2858.811732][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2858.811732][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2858.811732][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2858.811732][   T73]      netlink_rcv_skb+0x130/0x360
[ 2858.811732][   T73]      netlink_unicast+0x449/0x710
[ 2858.811732][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2858.811732][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2858.811732][   T73]      ___sys_sendmsg+0xee/0x170
[ 2858.811732][   T73]      __sys_sendmsg+0xcd/0x170
[ 2858.811732][   T73]      do_syscall_64+0xc6/0x1e0
[ 2858.811732][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2858.811732][   T73] 
[ 2858.813733][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2858.813733][   T73]      netdev_get_by_index+0x5e/0x80
[ 2858.813733][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2858.813733][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2858.813733][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2858.813733][   T73]      ipv6_add_addr+0x411/0x2000
[ 2858.813733][   T73]      inet6_addr_add+0x30e/0xa40
[ 2858.813733][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2858.813733][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2858.813733][   T73]      netlink_rcv_skb+0x130/0x360
[ 2858.813733][   T73]      netlink_unicast+0x449/0x710
[ 2858.813733][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2858.813733][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2858.813733][   T73]      ___sys_sendmsg+0xee/0x170
[ 2858.813733][   T73]      __sys_sendmsg+0xcd/0x170
[ 2858.813733][   T73]      do_syscall_64+0xc6/0x1e0
[ 2858.813733][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2858.813733][   T73] 
[ 2858.815720][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2858.815720][   T73]      netdev_get_by_index+0x5e/0x80
[ 2858.815720][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2858.815720][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2858.815720][   T73]      ip6_route_add+0x1c/0x140
[ 2858.815720][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2858.815720][   T73]      addrconf_add_dev+0xe2/0x170
[ 2858.815720][   T73]      inet6_addr_add+0x12f/0xa40
[ 2858.815720][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2858.815720][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2858.815720][   T73]      netlink_rcv_skb+0x130/0x360
[ 2858.815720][   T73]      netlink_unicast+0x449/0x710
[ 2858.815720][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2858.815720][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2858.815720][   T73]      ___sys_sendmsg+0xee/0x170
[ 2858.815720][   T73]      __sys_sendmsg+0xcd/0x170
[ 2858.815720][   T73]      do_syscall_64+0xc6/0x1e0
[ 2858.815720][   T73] 
[ 2858.817683][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2858.817683][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2858.817683][   T73]      ipv6_find_idev+0x102/0x170
[ 2858.817683][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2858.817683][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2858.817683][   T73]      netlink_rcv_skb+0x130/0x360
[ 2858.817683][   T73]      netlink_unicast+0x449/0x710
[ 2858.817683][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2858.817683][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2858.817683][   T73]      ___sys_sendmsg+0xee/0x170
[ 2858.817683][   T73]      __sys_sendmsg+0xcd/0x170
[ 2858.817683][   T73]      do_syscall_64+0xc6/0x1e0
[ 2858.817683][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2858.817683][   T73] 
[ 2858.819224][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2858.819224][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2858.819224][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2858.819224][   T73]      ipv6_find_idev+0x102/0x170
[ 2858.819224][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2858.819224][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2858.819224][   T73]      netlink_rcv_skb+0x130/0x360
[ 2858.819224][   T73]      netlink_unicast+0x449/0x710
[ 2858.819224][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2858.819224][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2858.819224][   T73]      ___sys_sendmsg+0xee/0x170
[ 2858.819224][   T73]      __sys_sendmsg+0xcd/0x170
[ 2858.819224][   T73]      do_syscall_64+0xc6/0x1e0
[ 2858.819224][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2858.819224][   T73] 
[ 2858.820915][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2858.821208][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2858.821208][   T73]      netdev_get_by_index+0x5e/0x80
[ 2858.821208][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2858.821208][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2858.821208][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2858.821208][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2858.821208][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2858.821208][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2858.821208][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2858.821208][   T73]      addrconf_dad_begin+0x310/0x670
[ 2858.821208][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2858.821208][   T73]      process_one_work+0x84d/0x18a0
[ 2858.821208][   T73]      worker_thread+0x587/0xd30
[ 2858.821208][   T73]      kthread+0x28a/0x350
[ 2858.821208][   T73]      ret_from_fork+0x31/0x70
[ 2858.821208][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2858.821208][   T73] 
[ 2858.823124][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2858.823124][   T73]      netdev_get_by_index+0x5e/0x80
[ 2858.823124][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2858.823124][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2858.823124][   T73]      ip6_route_add+0x1c/0x140
[ 2858.823124][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2858.823124][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2858.823124][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2858.823124][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2858.823124][   T73]      netlink_rcv_skb+0x130/0x360
[ 2858.823124][   T73]      netlink_unicast+0x449/0x710
[ 2858.823124][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2858.823124][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2858.823124][   T73]      ___sys_sendmsg+0xee/0x170
[ 2858.823124][   T73]      __sys_sendmsg+0xcd/0x170
[ 2858.823124][   T73]      do_syscall_64+0xc6/0x1e0
[ 2858.823124][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2858.823124][   T73] 
[ 2858.825113][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2858.825113][   T73]      netdev_get_by_index+0x5e/0x80
[ 2858.825113][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2858.825113][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2858.825113][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2858.825113][   T73]      ipv6_add_addr+0x411/0x2000
[ 2858.825113][   T73]      inet6_addr_add+0x30e/0xa40
[ 2858.825113][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2858.825113][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2858.825113][   T73]      netlink_rcv_skb+0x130/0x360
[ 2858.825113][   T73]      netlink_unicast+0x449/0x710
[ 2858.825113][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2858.825113][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2858.825113][   T73]      ___sys_sendmsg+0xee/0x170
[ 2858.825113][   T73]      __sys_sendmsg+0xcd/0x170
[ 2858.825113][   T73]      do_syscall_64+0xc6/0x1e0
[ 2858.825113][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2858.825113][   T73] 
[ 2858.827106][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2858.827106][   T73]      netdev_get_by_index+0x5e/0x80
[ 2858.827106][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2858.827106][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2858.827106][   T73]      ip6_route_add+0x1c/0x140
[ 2858.827106][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2858.827106][   T73]      addrconf_add_dev+0xe2/0x170
[ 2858.827106][   T73]      inet6_addr_add+0x12f/0xa40
[ 2858.827106][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2858.827106][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2858.827106][   T73]      netlink_rcv_skb+0x130/0x360
[ 2858.827106][   T73]      netlink_unicast+0x449/0x710
[ 2858.827106][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2858.827106][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2858.827106][   T73]      ___sys_sendmsg+0xee/0x170
[ 2858.827106][   T73]      __sys_sendmsg+0xcd/0x170
[ 2858.827106][   T73]      do_syscall_64+0xc6/0x1e0
[ 2858.827106][   T73] 
[ 2858.829062][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2858.829062][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2858.829062][   T73]      ipv6_find_idev+0x102/0x170
[ 2858.829062][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2858.829062][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2858.829062][   T73]      netlink_rcv_skb+0x130/0x360
[ 2858.829062][   T73]      netlink_unicast+0x449/0x710
[ 2858.829062][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2858.829062][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2858.829062][   T73]      ___sys_sendmsg+0xee/0x170
[ 2858.829062][   T73]      __sys_sendmsg+0xcd/0x170
[ 2858.829062][   T73]      do_syscall_64+0xc6/0x1e0
[ 2858.829062][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2858.829062][   T73] 
[ 2858.830595][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2858.830595][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2858.830595][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2858.830595][   T73]      ipv6_find_idev+0x102/0x170
[ 2858.830595][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2858.830595][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2858.830595][   T73]      netlink_rcv_skb+0x130/0x360
[ 2858.830595][   T73]      netlink_unicast+0x449/0x710
[ 2858.830595][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2858.830595][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2858.830595][   T73]      ___sys_sendmsg+0xee/0x170
[ 2858.830595][   T73]      __sys_sendmsg+0xcd/0x170
[ 2858.830595][   T73]      do_syscall_64+0xc6/0x1e0
[ 2858.830595][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2858.830595][   T73] 
[ 2858.832280][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2858.832557][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2858.832557][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2858.832557][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2858.832557][   T73]      fib6_nh_init+0xa22/0x1580
[ 2858.832557][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2858.832557][   T73]      ip6_route_add+0x1c/0x140
[ 2858.832557][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2858.832557][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2858.832557][   T73]      netlink_rcv_skb+0x130/0x360
[ 2858.832557][   T73]      netlink_unicast+0x449/0x710
[ 2858.832557][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2858.832557][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2858.832557][   T73]      ___sys_sendmsg+0xee/0x170
[ 2858.832557][   T73]      __sys_sendmsg+0xcd/0x170
[ 2858.832557][   T73]      do_syscall_64+0xc6/0x1e0
[ 2858.832557][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2858.832557][   T73] 
[ 2858.834562][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2858.834562][   T73]      dst_init+0x84/0x4a0
[ 2858.834562][   T73]      dst_alloc+0x97/0x150
[ 2858.834562][   T73]      ip6_dst_alloc+0x23/0x90
[ 2858.834562][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2858.834562][   T73]      ip6_pol_route+0x56f/0x840
[ 2858.834562][   T73]      fib6_rule_lookup+0x456/0x630
[ 2858.834562][   T73]      ip6_route_input+0x59c/0xa50
[ 2858.834562][   T73]      ipv6_rcv+0x397/0x810
[ 2858.834562][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2858.834562][   T73]      process_backlog+0x101/0x620
[ 2858.834562][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2858.834562][   T73]      net_rx_action+0x495/0xbe0
[ 2858.834562][   T73]      __do_softirq+0x1b5/0x7f6
[ 2858.834562][   T73] 
[ 2858.836432][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2858.836432][   T73]      netdev_get_by_index+0x5e/0x80
[ 2858.836432][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2858.836432][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2858.836432][   T73]      ip6_route_add+0x1c/0x140
[ 2858.836432][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2858.836432][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2858.836432][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2858.836432][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2858.836432][   T73]      netlink_rcv_skb+0x130/0x360
[ 2858.836432][   T73]      netlink_unicast+0x449/0x710
[ 2858.836432][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2858.836432][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2858.836432][   T73]      ___sys_sendmsg+0xee/0x170
[ 2858.836432][   T73]      __sys_sendmsg+0xcd/0x170
[ 2858.836432][   T73]      do_syscall_64+0xc6/0x1e0
[ 2858.836432][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2858.836432][   T73] 
[ 2858.838671][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2858.838671][   T73]      netdev_get_by_index+0x5e/0x80
[ 2858.838671][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2858.838671][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2858.838671][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2858.838671][   T73]      ipv6_add_addr+0x411/0x2000
[ 2858.838671][   T73]      inet6_addr_add+0x30e/0xa40
[ 2858.838671][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2858.838671][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2858.838671][   T73]      netlink_rcv_skb+0x130/0x360
[ 2858.838671][   T73]      netlink_unicast+0x449/0x710
[ 2858.838671][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2858.838671][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2858.838671][   T73]      ___sys_sendmsg+0xee/0x170
[ 2858.838671][   T73]      __sys_sendmsg+0xcd/0x170
[ 2858.838671][   T73]      do_syscall_64+0xc6/0x1e0
[ 2858.838671][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2858.838671][   T73] 
[ 2858.840901][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2858.840901][   T73]      netdev_get_by_index+0x5e/0x80
[ 2858.840901][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2858.840901][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2858.840901][   T73]      ip6_route_add+0x1c/0x140
[ 2858.840901][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2858.840901][   T73]      addrconf_add_dev+0xe2/0x170
[ 2858.840901][   T73]      inet6_addr_add+0x12f/0xa40
[ 2858.840901][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2858.840901][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2858.840901][   T73]      netlink_rcv_skb+0x130/0x360
[ 2858.840901][   T73]      netlink_unicast+0x449/0x710
[ 2858.840901][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2858.840901][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2858.840901][   T73]      ___sys_sendmsg+0xee/0x170
[ 2858.840901][   T73]      __sys_sendmsg+0xcd/0x170
[ 2858.840901][   T73]      do_syscall_64+0xc6/0x1e0
[ 2858.840901][   T73] 
[ 2858.843104][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2858.843104][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2858.843104][   T73]      ipv6_find_idev+0x102/0x170
[ 2858.843104][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2858.843104][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2858.843104][   T73]      netlink_rcv_skb+0x130/0x360
[ 2858.843104][   T73]      netlink_unicast+0x449/0x710
[ 2858.843104][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2858.843104][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2858.843104][   T73]      ___sys_sendmsg+0xee/0x170
[ 2858.843104][   T73]      __sys_sendmsg+0xcd/0x170
[ 2858.843104][   T73]      do_syscall_64+0xc6/0x1e0
[ 2858.843104][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2858.843104][   T73] 
[ 2858.844893][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2858.844893][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2858.844893][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2858.844893][   T73]      ipv6_find_idev+0x102/0x170
[ 2858.844893][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2858.844893][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2858.844893][   T73]      netlink_rcv_skb+0x130/0x360
[ 2858.844893][   T73]      netlink_unicast+0x449/0x710
[ 2858.844893][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2858.844893][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2858.844893][   T73]      ___sys_sendmsg+0xee/0x170
[ 2858.844893][   T73]      __sys_sendmsg+0xcd/0x170
[ 2858.844893][   T73]      do_syscall_64+0xc6/0x1e0
[ 2858.844893][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2858.844893][   T73] 
[ 2858.846764][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2858.847035][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2858.847035][   T73]      netdev_get_by_index+0x5e/0x80
[ 2858.847035][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2858.847035][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2858.847035][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2858.847035][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2858.847035][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2858.847035][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2858.847035][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2858.847035][   T73]      addrconf_dad_begin+0x310/0x670
[ 2858.847035][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2858.847035][   T73]      process_one_work+0x84d/0x18a0
[ 2858.847035][   T73]      worker_thread+0x587/0xd30
[ 2858.847035][   T73]      kthread+0x28a/0x350
[ 2858.847035][   T73]      ret_from_fork+0x31/0x70
[ 2858.847035][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2858.847035][   T73] 
[ 2858.849179][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2858.849179][   T73]      netdev_get_by_index+0x5e/0x80
[ 2858.849179][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2858.849179][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2858.849179][   T73]      ip6_route_add+0x1c/0x140
[ 2858.849179][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2858.849179][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2858.849179][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2858.849179][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2858.849179][   T73]      netlink_rcv_skb+0x130/0x360
[ 2858.849179][   T73]      netlink_unicast+0x449/0x710
[ 2858.849179][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2858.849179][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2858.849179][   T73]      ___sys_sendmsg+0xee/0x170
[ 2858.849179][   T73]      __sys_sendmsg+0xcd/0x170
[ 2858.849179][   T73]      do_syscall_64+0xc6/0x1e0
[ 2858.849179][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2858.849179][   T73] 
[ 2858.851419][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2858.851419][   T73]      netdev_get_by_index+0x5e/0x80
[ 2858.851419][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2858.851419][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2858.851419][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2858.851419][   T73]      ipv6_add_addr+0x411/0x2000
[ 2858.851419][   T73]      inet6_addr_add+0x30e/0xa40
[ 2858.851419][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2858.851419][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2858.851419][   T73]      netlink_rcv_skb+0x130/0x360
[ 2858.851419][   T73]      netlink_unicast+0x449/0x710
[ 2858.851419][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2858.851419][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2858.851419][   T73]      ___sys_sendmsg+0xee/0x170
[ 2858.851419][   T73]      __sys_sendmsg+0xcd/0x170
[ 2858.851419][   T73]      do_syscall_64+0xc6/0x1e0
[ 2858.851419][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2858.851419][   T73] 
[ 2858.853648][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2858.853648][   T73]      netdev_get_by_index+0x5e/0x80
[ 2858.853648][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2858.853648][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2858.853648][   T73]      ip6_route_add+0x1c/0x140
[ 2858.853648][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2858.853648][   T73]      addrconf_add_dev+0xe2/0x170
[ 2858.853648][   T73]      inet6_addr_add+0x12f/0xa40
[ 2858.853648][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2858.853648][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2858.853648][   T73]      netlink_rcv_skb+0x130/0x360
[ 2858.853648][   T73]      netlink_unicast+0x449/0x710
[ 2858.853648][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2858.853648][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2858.853648][   T73]      ___sys_sendmsg+0xee/0x170
[ 2858.853648][   T73]      __sys_sendmsg+0xcd/0x170
[ 2858.853648][   T73]      do_syscall_64+0xc6/0x1e0
[ 2858.853648][   T73] 
[ 2858.855841][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2858.855841][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2858.855841][   T73]      ipv6_find_idev+0x102/0x170
[ 2858.855841][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2858.855841][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2858.855841][   T73]      netlink_rcv_skb+0x130/0x360
[ 2858.855841][   T73]      netlink_unicast+0x449/0x710
[ 2858.855841][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2858.855841][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2858.855841][   T73]      ___sys_sendmsg+0xee/0x170
[ 2858.855841][   T73]      __sys_sendmsg+0xcd/0x170
[ 2858.855841][   T73]      do_syscall_64+0xc6/0x1e0
[ 2858.855841][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2858.855841][   T73] 
[ 2858.857556][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2858.857556][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2858.857556][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2858.857556][   T73]      ipv6_find_idev+0x102/0x170
[ 2858.857556][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2858.857556][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2858.857556][   T73]      netlink_rcv_skb+0x130/0x360
[ 2858.857556][   T73]      netlink_unicast+0x449/0x710
[ 2858.857556][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2858.857556][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2858.857556][   T73]      ___sys_sendmsg+0xee/0x170
[ 2858.857556][   T73]      __sys_sendmsg+0xcd/0x170
[ 2858.857556][   T73]      do_syscall_64+0xc6/0x1e0
[ 2858.857556][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2858.857556][   T73] 
[ 2869.095839][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2869.096328][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2869.096328][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2869.096328][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2869.096328][   T73]      fib6_nh_init+0xa22/0x1580
[ 2869.096328][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2869.096328][   T73]      ip6_route_add+0x1c/0x140
[ 2869.096328][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2869.096328][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2869.096328][   T73]      netlink_rcv_skb+0x130/0x360
[ 2869.096328][   T73]      netlink_unicast+0x449/0x710
[ 2869.096328][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2869.096328][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2869.096328][   T73]      ___sys_sendmsg+0xee/0x170
[ 2869.096328][   T73]      __sys_sendmsg+0xcd/0x170
[ 2869.096328][   T73]      do_syscall_64+0xc6/0x1e0
[ 2869.096328][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2869.096328][   T73] 
[ 2869.098231][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2869.098231][   T73]      dst_init+0x84/0x4a0
[ 2869.098231][   T73]      dst_alloc+0x97/0x150
[ 2869.098231][   T73]      ip6_dst_alloc+0x23/0x90
[ 2869.098231][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2869.098231][   T73]      ip6_pol_route+0x56f/0x840
[ 2869.098231][   T73]      fib6_rule_lookup+0x456/0x630
[ 2869.098231][   T73]      ip6_route_input+0x59c/0xa50
[ 2869.098231][   T73]      ipv6_rcv+0x397/0x810
[ 2869.098231][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2869.098231][   T73]      process_backlog+0x101/0x620
[ 2869.098231][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2869.098231][   T73]      net_rx_action+0x495/0xbe0
[ 2869.098231][   T73]      __do_softirq+0x1b5/0x7f6
[ 2869.098231][   T73] 
[ 2869.099867][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2869.099867][   T73]      netdev_get_by_index+0x5e/0x80
[ 2869.099867][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2869.099867][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2869.099867][   T73]      ip6_route_add+0x1c/0x140
[ 2869.099867][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2869.099867][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2869.099867][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2869.099867][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2869.099867][   T73]      netlink_rcv_skb+0x130/0x360
[ 2869.099867][   T73]      netlink_unicast+0x449/0x710
[ 2869.099867][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2869.099867][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2869.099867][   T73]      ___sys_sendmsg+0xee/0x170
[ 2869.099867][   T73]      __sys_sendmsg+0xcd/0x170
[ 2869.099867][   T73]      do_syscall_64+0xc6/0x1e0
[ 2869.099867][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2869.099867][   T73] 
[ 2869.101874][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2869.101874][   T73]      netdev_get_by_index+0x5e/0x80
[ 2869.101874][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2869.101874][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2869.101874][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2869.101874][   T73]      ipv6_add_addr+0x411/0x2000
[ 2869.101874][   T73]      inet6_addr_add+0x30e/0xa40
[ 2869.101874][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2869.101874][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2869.101874][   T73]      netlink_rcv_skb+0x130/0x360
[ 2869.101874][   T73]      netlink_unicast+0x449/0x710
[ 2869.101874][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2869.101874][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2869.101874][   T73]      ___sys_sendmsg+0xee/0x170
[ 2869.101874][   T73]      __sys_sendmsg+0xcd/0x170
[ 2869.101874][   T73]      do_syscall_64+0xc6/0x1e0
[ 2869.101874][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2869.101874][   T73] 
[ 2869.103873][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2869.103873][   T73]      netdev_get_by_index+0x5e/0x80
[ 2869.103873][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2869.103873][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2869.103873][   T73]      ip6_route_add+0x1c/0x140
[ 2869.103873][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2869.103873][   T73]      addrconf_add_dev+0xe2/0x170
[ 2869.103873][   T73]      inet6_addr_add+0x12f/0xa40
[ 2869.103873][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2869.103873][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2869.103873][   T73]      netlink_rcv_skb+0x130/0x360
[ 2869.103873][   T73]      netlink_unicast+0x449/0x710
[ 2869.103873][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2869.103873][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2869.103873][   T73]      ___sys_sendmsg+0xee/0x170
[ 2869.103873][   T73]      __sys_sendmsg+0xcd/0x170
[ 2869.103873][   T73]      do_syscall_64+0xc6/0x1e0
[ 2869.103873][   T73] 
[ 2869.105834][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2869.105834][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2869.105834][   T73]      ipv6_find_idev+0x102/0x170
[ 2869.105834][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2869.105834][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2869.105834][   T73]      netlink_rcv_skb+0x130/0x360
[ 2869.105834][   T73]      netlink_unicast+0x449/0x710
[ 2869.105834][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2869.105834][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2869.105834][   T73]      ___sys_sendmsg+0xee/0x170
[ 2869.105834][   T73]      __sys_sendmsg+0xcd/0x170
[ 2869.105834][   T73]      do_syscall_64+0xc6/0x1e0
[ 2869.105834][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2869.105834][   T73] 
[ 2869.107382][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2869.107382][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2869.107382][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2869.107382][   T73]      ipv6_find_idev+0x102/0x170
[ 2869.107382][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2869.107382][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2869.107382][   T73]      netlink_rcv_skb+0x130/0x360
[ 2869.107382][   T73]      netlink_unicast+0x449/0x710
[ 2869.107382][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2869.107382][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2869.107382][   T73]      ___sys_sendmsg+0xee/0x170
[ 2869.107382][   T73]      __sys_sendmsg+0xcd/0x170
[ 2869.107382][   T73]      do_syscall_64+0xc6/0x1e0
[ 2869.107382][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2869.107382][   T73] 
[ 2869.109070][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2869.109354][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2869.109354][   T73]      netdev_get_by_index+0x5e/0x80
[ 2869.109354][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2869.109354][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2869.109354][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2869.109354][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2869.109354][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2869.109354][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2869.109354][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2869.109354][   T73]      addrconf_dad_begin+0x310/0x670
[ 2869.109354][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2869.109354][   T73]      process_one_work+0x84d/0x18a0
[ 2869.109354][   T73]      worker_thread+0x587/0xd30
[ 2869.109354][   T73]      kthread+0x28a/0x350
[ 2869.109354][   T73]      ret_from_fork+0x31/0x70
[ 2869.109354][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2869.109354][   T73] 
[ 2869.111258][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2869.111258][   T73]      netdev_get_by_index+0x5e/0x80
[ 2869.111258][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2869.111258][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2869.111258][   T73]      ip6_route_add+0x1c/0x140
[ 2869.111258][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2869.111258][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2869.111258][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2869.111258][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2869.111258][   T73]      netlink_rcv_skb+0x130/0x360
[ 2869.111258][   T73]      netlink_unicast+0x449/0x710
[ 2869.111258][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2869.111258][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2869.111258][   T73]      ___sys_sendmsg+0xee/0x170
[ 2869.111258][   T73]      __sys_sendmsg+0xcd/0x170
[ 2869.111258][   T73]      do_syscall_64+0xc6/0x1e0
[ 2869.111258][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2869.111258][   T73] 
[ 2869.113254][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2869.113254][   T73]      netdev_get_by_index+0x5e/0x80
[ 2869.113254][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2869.113254][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2869.113254][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2869.113254][   T73]      ipv6_add_addr+0x411/0x2000
[ 2869.113254][   T73]      inet6_addr_add+0x30e/0xa40
[ 2869.113254][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2869.113254][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2869.113254][   T73]      netlink_rcv_skb+0x130/0x360
[ 2869.113254][   T73]      netlink_unicast+0x449/0x710
[ 2869.113254][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2869.113254][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2869.113254][   T73]      ___sys_sendmsg+0xee/0x170
[ 2869.113254][   T73]      __sys_sendmsg+0xcd/0x170
[ 2869.113254][   T73]      do_syscall_64+0xc6/0x1e0
[ 2869.113254][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2869.113254][   T73] 
[ 2869.115250][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2869.115250][   T73]      netdev_get_by_index+0x5e/0x80
[ 2869.115250][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2869.115250][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2869.115250][   T73]      ip6_route_add+0x1c/0x140
[ 2869.115250][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2869.115250][   T73]      addrconf_add_dev+0xe2/0x170
[ 2869.115250][   T73]      inet6_addr_add+0x12f/0xa40
[ 2869.115250][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2869.115250][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2869.115250][   T73]      netlink_rcv_skb+0x130/0x360
[ 2869.115250][   T73]      netlink_unicast+0x449/0x710
[ 2869.115250][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2869.115250][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2869.115250][   T73]      ___sys_sendmsg+0xee/0x170
[ 2869.115250][   T73]      __sys_sendmsg+0xcd/0x170
[ 2869.115250][   T73]      do_syscall_64+0xc6/0x1e0
[ 2869.115250][   T73] 
[ 2869.117206][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2869.117206][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2869.117206][   T73]      ipv6_find_idev+0x102/0x170
[ 2869.117206][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2869.117206][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2869.117206][   T73]      netlink_rcv_skb+0x130/0x360
[ 2869.117206][   T73]      netlink_unicast+0x449/0x710
[ 2869.117206][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2869.117206][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2869.117206][   T73]      ___sys_sendmsg+0xee/0x170
[ 2869.117206][   T73]      __sys_sendmsg+0xcd/0x170
[ 2869.117206][   T73]      do_syscall_64+0xc6/0x1e0
[ 2869.117206][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2869.117206][   T73] 
[ 2869.118739][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2869.118739][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2869.118739][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2869.118739][   T73]      ipv6_find_idev+0x102/0x170
[ 2869.118739][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2869.118739][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2869.118739][   T73]      netlink_rcv_skb+0x130/0x360
[ 2869.118739][   T73]      netlink_unicast+0x449/0x710
[ 2869.118739][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2869.118739][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2869.118739][   T73]      ___sys_sendmsg+0xee/0x170
[ 2869.118739][   T73]      __sys_sendmsg+0xcd/0x170
[ 2869.118739][   T73]      do_syscall_64+0xc6/0x1e0
[ 2869.118739][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2869.118739][   T73] 
[ 2869.120422][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2869.120709][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2869.120709][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2869.120709][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2869.120709][   T73]      fib6_nh_init+0xa22/0x1580
[ 2869.120709][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2869.120709][   T73]      ip6_route_add+0x1c/0x140
[ 2869.120709][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2869.120709][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2869.120709][   T73]      netlink_rcv_skb+0x130/0x360
[ 2869.120709][   T73]      netlink_unicast+0x449/0x710
[ 2869.120709][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2869.120709][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2869.120709][   T73]      ___sys_sendmsg+0xee/0x170
[ 2869.120709][   T73]      __sys_sendmsg+0xcd/0x170
[ 2869.120709][   T73]      do_syscall_64+0xc6/0x1e0
[ 2869.120709][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2869.120709][   T73] 
[ 2869.123245][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2869.123245][   T73]      dst_init+0x84/0x4a0
[ 2869.123245][   T73]      dst_alloc+0x97/0x150
[ 2869.123245][   T73]      ip6_dst_alloc+0x23/0x90
[ 2869.123245][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2869.123245][   T73]      ip6_pol_route+0x56f/0x840
[ 2869.123245][   T73]      fib6_rule_lookup+0x456/0x630
[ 2869.123245][   T73]      ip6_route_input+0x59c/0xa50
[ 2869.123245][   T73]      ipv6_rcv+0x397/0x810
[ 2869.123245][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2869.123245][   T73]      process_backlog+0x101/0x620
[ 2869.123245][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2869.123245][   T73]      net_rx_action+0x495/0xbe0
[ 2869.123245][   T73]      __do_softirq+0x1b5/0x7f6
[ 2869.123245][   T73] 
[ 2869.125055][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2869.125055][   T73]      netdev_get_by_index+0x5e/0x80
[ 2869.125055][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2869.125055][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2869.125055][   T73]      ip6_route_add+0x1c/0x140
[ 2869.125055][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2869.125055][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2869.125055][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2869.125055][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2869.125055][   T73]      netlink_rcv_skb+0x130/0x360
[ 2869.125055][   T73]      netlink_unicast+0x449/0x710
[ 2869.125055][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2869.125055][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2869.125055][   T73]      ___sys_sendmsg+0xee/0x170
[ 2869.125055][   T73]      __sys_sendmsg+0xcd/0x170
[ 2869.125055][   T73]      do_syscall_64+0xc6/0x1e0
[ 2869.125055][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2869.125055][   T73] 
[ 2869.127277][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2869.127277][   T73]      netdev_get_by_index+0x5e/0x80
[ 2869.127277][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2869.127277][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2869.127277][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2869.127277][   T73]      ipv6_add_addr+0x411/0x2000
[ 2869.127277][   T73]      inet6_addr_add+0x30e/0xa40
[ 2869.127277][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2869.127277][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2869.127277][   T73]      netlink_rcv_skb+0x130/0x360
[ 2869.127277][   T73]      netlink_unicast+0x449/0x710
[ 2869.127277][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2869.127277][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2869.127277][   T73]      ___sys_sendmsg+0xee/0x170
[ 2869.127277][   T73]      __sys_sendmsg+0xcd/0x170
[ 2869.127277][   T73]      do_syscall_64+0xc6/0x1e0
[ 2869.127277][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2869.127277][   T73] 
[ 2869.129638][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2869.129638][   T73]      netdev_get_by_index+0x5e/0x80
[ 2869.129638][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2869.129638][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2869.129638][   T73]      ip6_route_add+0x1c/0x140
[ 2869.129638][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2869.129638][   T73]      addrconf_add_dev+0xe2/0x170
[ 2869.129638][   T73]      inet6_addr_add+0x12f/0xa40
[ 2869.129638][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2869.129638][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2869.129638][   T73]      netlink_rcv_skb+0x130/0x360
[ 2869.129638][   T73]      netlink_unicast+0x449/0x710
[ 2869.129638][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2869.129638][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2869.129638][   T73]      ___sys_sendmsg+0xee/0x170
[ 2869.129638][   T73]      __sys_sendmsg+0xcd/0x170
[ 2869.129638][   T73]      do_syscall_64+0xc6/0x1e0
[ 2869.129638][   T73] 
[ 2869.131850][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2869.131850][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2869.131850][   T73]      ipv6_find_idev+0x102/0x170
[ 2869.131850][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2869.131850][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2869.131850][   T73]      netlink_rcv_skb+0x130/0x360
[ 2869.131850][   T73]      netlink_unicast+0x449/0x710
[ 2869.131850][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2869.131850][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2869.131850][   T73]      ___sys_sendmsg+0xee/0x170
[ 2869.131850][   T73]      __sys_sendmsg+0xcd/0x170
[ 2869.131850][   T73]      do_syscall_64+0xc6/0x1e0
[ 2869.131850][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2869.131850][   T73] 
[ 2869.133984][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2869.133984][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2869.133984][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2869.133984][   T73]      ipv6_find_idev+0x102/0x170
[ 2869.133984][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2869.133984][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2869.133984][   T73]      netlink_rcv_skb+0x130/0x360
[ 2869.133984][   T73]      netlink_unicast+0x449/0x710
[ 2869.133984][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2869.133984][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2869.133984][   T73]      ___sys_sendmsg+0xee/0x170
[ 2869.133984][   T73]      __sys_sendmsg+0xcd/0x170
[ 2869.133984][   T73]      do_syscall_64+0xc6/0x1e0
[ 2869.133984][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2869.133984][   T73] 
[ 2869.135856][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2869.136134][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2869.136134][   T73]      netdev_get_by_index+0x5e/0x80
[ 2869.136134][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2869.136134][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2869.136134][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2869.136134][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2869.136134][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2869.136134][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2869.136134][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2869.136134][   T73]      addrconf_dad_begin+0x310/0x670
[ 2869.136134][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2869.136134][   T73]      process_one_work+0x84d/0x18a0
[ 2869.136134][   T73]      worker_thread+0x587/0xd30
[ 2869.136134][   T73]      kthread+0x28a/0x350
[ 2869.136134][   T73]      ret_from_fork+0x31/0x70
[ 2869.136134][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2869.136134][   T73] 
[ 2869.138284][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2869.138284][   T73]      netdev_get_by_index+0x5e/0x80
[ 2869.138284][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2869.138284][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2869.138284][   T73]      ip6_route_add+0x1c/0x140
[ 2869.138284][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2869.138284][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2869.138284][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2869.138284][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2869.138284][   T73]      netlink_rcv_skb+0x130/0x360
[ 2869.138284][   T73]      netlink_unicast+0x449/0x710
[ 2869.138284][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2869.138284][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2869.138284][   T73]      ___sys_sendmsg+0xee/0x170
[ 2869.138284][   T73]      __sys_sendmsg+0xcd/0x170
[ 2869.138284][   T73]      do_syscall_64+0xc6/0x1e0
[ 2869.138284][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2869.138284][   T73] 
[ 2869.140580][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2869.140580][   T73]      netdev_get_by_index+0x5e/0x80
[ 2869.140580][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2869.140580][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2869.140580][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2869.140580][   T73]      ipv6_add_addr+0x411/0x2000
[ 2869.140580][   T73]      inet6_addr_add+0x30e/0xa40
[ 2869.140580][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2869.140580][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2869.140580][   T73]      netlink_rcv_skb+0x130/0x360
[ 2869.140580][   T73]      netlink_unicast+0x449/0x710
[ 2869.140580][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2869.140580][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2869.140580][   T73]      ___sys_sendmsg+0xee/0x170
[ 2869.140580][   T73]      __sys_sendmsg+0xcd/0x170
[ 2869.140580][   T73]      do_syscall_64+0xc6/0x1e0
[ 2869.140580][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2869.140580][   T73] 
[ 2869.142818][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2869.142818][   T73]      netdev_get_by_index+0x5e/0x80
[ 2869.142818][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2869.142818][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2869.142818][   T73]      ip6_route_add+0x1c/0x140
[ 2869.142818][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2869.142818][   T73]      addrconf_add_dev+0xe2/0x170
[ 2869.142818][   T73]      inet6_addr_add+0x12f/0xa40
[ 2869.142818][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2869.142818][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2869.142818][   T73]      netlink_rcv_skb+0x130/0x360
[ 2869.142818][   T73]      netlink_unicast+0x449/0x710
[ 2869.142818][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2869.142818][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2869.142818][   T73]      ___sys_sendmsg+0xee/0x170
[ 2869.142818][   T73]      __sys_sendmsg+0xcd/0x170
[ 2869.142818][   T73]      do_syscall_64+0xc6/0x1e0
[ 2869.142818][   T73] 
[ 2869.144960][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2869.144960][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2869.144960][   T73]      ipv6_find_idev+0x102/0x170
[ 2869.144960][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2869.144960][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2869.144960][   T73]      netlink_rcv_skb+0x130/0x360
[ 2869.144960][   T73]      netlink_unicast+0x449/0x710
[ 2869.144960][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2869.144960][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2869.144960][   T73]      ___sys_sendmsg+0xee/0x170
[ 2869.144960][   T73]      __sys_sendmsg+0xcd/0x170
[ 2869.144960][   T73]      do_syscall_64+0xc6/0x1e0
[ 2869.144960][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2869.144960][   T73] 
[ 2869.146679][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2869.146679][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2869.146679][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2869.146679][   T73]      ipv6_find_idev+0x102/0x170
[ 2869.146679][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2869.146679][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2869.146679][   T73]      netlink_rcv_skb+0x130/0x360
[ 2869.146679][   T73]      netlink_unicast+0x449/0x710
[ 2869.146679][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2869.146679][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2869.146679][   T73]      ___sys_sendmsg+0xee/0x170
[ 2869.146679][   T73]      __sys_sendmsg+0xcd/0x170
[ 2869.146679][   T73]      do_syscall_64+0xc6/0x1e0
[ 2869.146679][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2869.146679][   T73] 
[ 2879.287821][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2879.288269][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2879.288269][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2879.288269][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2879.288269][   T73]      fib6_nh_init+0xa22/0x1580
[ 2879.288269][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2879.288269][   T73]      ip6_route_add+0x1c/0x140
[ 2879.288269][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2879.288269][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2879.288269][   T73]      netlink_rcv_skb+0x130/0x360
[ 2879.288269][   T73]      netlink_unicast+0x449/0x710
[ 2879.288269][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2879.288269][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2879.288269][   T73]      ___sys_sendmsg+0xee/0x170
[ 2879.288269][   T73]      __sys_sendmsg+0xcd/0x170
[ 2879.288269][   T73]      do_syscall_64+0xc6/0x1e0
[ 2879.288269][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2879.288269][   T73] 
[ 2879.290428][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2879.290428][   T73]      dst_init+0x84/0x4a0
[ 2879.290428][   T73]      dst_alloc+0x97/0x150
[ 2879.290428][   T73]      ip6_dst_alloc+0x23/0x90
[ 2879.290428][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2879.290428][   T73]      ip6_pol_route+0x56f/0x840
[ 2879.290428][   T73]      fib6_rule_lookup+0x456/0x630
[ 2879.290428][   T73]      ip6_route_input+0x59c/0xa50
[ 2879.290428][   T73]      ipv6_rcv+0x397/0x810
[ 2879.290428][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2879.290428][   T73]      process_backlog+0x101/0x620
[ 2879.290428][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2879.290428][   T73]      net_rx_action+0x495/0xbe0
[ 2879.290428][   T73]      __do_softirq+0x1b5/0x7f6
[ 2879.290428][   T73] 
[ 2879.292283][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2879.292283][   T73]      netdev_get_by_index+0x5e/0x80
[ 2879.292283][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2879.292283][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2879.292283][   T73]      ip6_route_add+0x1c/0x140
[ 2879.292283][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2879.292283][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2879.292283][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2879.292283][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2879.292283][   T73]      netlink_rcv_skb+0x130/0x360
[ 2879.292283][   T73]      netlink_unicast+0x449/0x710
[ 2879.292283][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2879.292283][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2879.292283][   T73]      ___sys_sendmsg+0xee/0x170
[ 2879.292283][   T73]      __sys_sendmsg+0xcd/0x170
[ 2879.292283][   T73]      do_syscall_64+0xc6/0x1e0
[ 2879.292283][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2879.292283][   T73] 
[ 2879.294528][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2879.294528][   T73]      netdev_get_by_index+0x5e/0x80
[ 2879.294528][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2879.294528][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2879.294528][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2879.294528][   T73]      ipv6_add_addr+0x411/0x2000
[ 2879.294528][   T73]      inet6_addr_add+0x30e/0xa40
[ 2879.294528][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2879.294528][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2879.294528][   T73]      netlink_rcv_skb+0x130/0x360
[ 2879.294528][   T73]      netlink_unicast+0x449/0x710
[ 2879.294528][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2879.294528][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2879.294528][   T73]      ___sys_sendmsg+0xee/0x170
[ 2879.294528][   T73]      __sys_sendmsg+0xcd/0x170
[ 2879.294528][   T73]      do_syscall_64+0xc6/0x1e0
[ 2879.294528][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2879.294528][   T73] 
[ 2879.296780][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2879.296780][   T73]      netdev_get_by_index+0x5e/0x80
[ 2879.296780][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2879.296780][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2879.296780][   T73]      ip6_route_add+0x1c/0x140
[ 2879.296780][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2879.296780][   T73]      addrconf_add_dev+0xe2/0x170
[ 2879.296780][   T73]      inet6_addr_add+0x12f/0xa40
[ 2879.296780][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2879.296780][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2879.296780][   T73]      netlink_rcv_skb+0x130/0x360
[ 2879.296780][   T73]      netlink_unicast+0x449/0x710
[ 2879.296780][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2879.296780][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2879.296780][   T73]      ___sys_sendmsg+0xee/0x170
[ 2879.296780][   T73]      __sys_sendmsg+0xcd/0x170
[ 2879.296780][   T73]      do_syscall_64+0xc6/0x1e0
[ 2879.296780][   T73] 
[ 2879.299005][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2879.299005][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2879.299005][   T73]      ipv6_find_idev+0x102/0x170
[ 2879.299005][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2879.299005][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2879.299005][   T73]      netlink_rcv_skb+0x130/0x360
[ 2879.299005][   T73]      netlink_unicast+0x449/0x710
[ 2879.299005][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2879.299005][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2879.299005][   T73]      ___sys_sendmsg+0xee/0x170
[ 2879.299005][   T73]      __sys_sendmsg+0xcd/0x170
[ 2879.299005][   T73]      do_syscall_64+0xc6/0x1e0
[ 2879.299005][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2879.299005][   T73] 
[ 2879.300729][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2879.300729][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2879.300729][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2879.300729][   T73]      ipv6_find_idev+0x102/0x170
[ 2879.300729][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2879.300729][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2879.300729][   T73]      netlink_rcv_skb+0x130/0x360
[ 2879.300729][   T73]      netlink_unicast+0x449/0x710
[ 2879.300729][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2879.300729][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2879.300729][   T73]      ___sys_sendmsg+0xee/0x170
[ 2879.300729][   T73]      __sys_sendmsg+0xcd/0x170
[ 2879.300729][   T73]      do_syscall_64+0xc6/0x1e0
[ 2879.300729][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2879.300729][   T73] 
[ 2879.302620][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2879.302942][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2879.302942][   T73]      netdev_get_by_index+0x5e/0x80
[ 2879.302942][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2879.302942][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2879.302942][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2879.302942][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2879.302942][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2879.302942][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2879.302942][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2879.302942][   T73]      addrconf_dad_begin+0x310/0x670
[ 2879.302942][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2879.302942][   T73]      process_one_work+0x84d/0x18a0
[ 2879.302942][   T73]      worker_thread+0x587/0xd30
[ 2879.302942][   T73]      kthread+0x28a/0x350
[ 2879.302942][   T73]      ret_from_fork+0x31/0x70
[ 2879.302942][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2879.302942][   T73] 
[ 2879.305089][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2879.305089][   T73]      netdev_get_by_index+0x5e/0x80
[ 2879.305089][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2879.305089][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2879.305089][   T73]      ip6_route_add+0x1c/0x140
[ 2879.305089][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2879.305089][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2879.305089][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2879.305089][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2879.305089][   T73]      netlink_rcv_skb+0x130/0x360
[ 2879.305089][   T73]      netlink_unicast+0x449/0x710
[ 2879.305089][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2879.305089][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2879.305089][   T73]      ___sys_sendmsg+0xee/0x170
[ 2879.305089][   T73]      __sys_sendmsg+0xcd/0x170
[ 2879.305089][   T73]      do_syscall_64+0xc6/0x1e0
[ 2879.305089][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2879.305089][   T73] 
[ 2879.307333][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2879.307333][   T73]      netdev_get_by_index+0x5e/0x80
[ 2879.307333][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2879.307333][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2879.307333][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2879.307333][   T73]      ipv6_add_addr+0x411/0x2000
[ 2879.307333][   T73]      inet6_addr_add+0x30e/0xa40
[ 2879.307333][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2879.307333][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2879.307333][   T73]      netlink_rcv_skb+0x130/0x360
[ 2879.307333][   T73]      netlink_unicast+0x449/0x710
[ 2879.307333][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2879.307333][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2879.307333][   T73]      ___sys_sendmsg+0xee/0x170
[ 2879.307333][   T73]      __sys_sendmsg+0xcd/0x170
[ 2879.307333][   T73]      do_syscall_64+0xc6/0x1e0
[ 2879.307333][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2879.307333][   T73] 
[ 2879.309580][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2879.309580][   T73]      netdev_get_by_index+0x5e/0x80
[ 2879.309580][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2879.309580][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2879.309580][   T73]      ip6_route_add+0x1c/0x140
[ 2879.309580][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2879.309580][   T73]      addrconf_add_dev+0xe2/0x170
[ 2879.309580][   T73]      inet6_addr_add+0x12f/0xa40
[ 2879.309580][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2879.309580][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2879.309580][   T73]      netlink_rcv_skb+0x130/0x360
[ 2879.309580][   T73]      netlink_unicast+0x449/0x710
[ 2879.309580][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2879.309580][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2879.309580][   T73]      ___sys_sendmsg+0xee/0x170
[ 2879.309580][   T73]      __sys_sendmsg+0xcd/0x170
[ 2879.309580][   T73]      do_syscall_64+0xc6/0x1e0
[ 2879.309580][   T73] 
[ 2879.311813][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2879.311813][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2879.311813][   T73]      ipv6_find_idev+0x102/0x170
[ 2879.311813][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2879.311813][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2879.311813][   T73]      netlink_rcv_skb+0x130/0x360
[ 2879.311813][   T73]      netlink_unicast+0x449/0x710
[ 2879.311813][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2879.311813][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2879.311813][   T73]      ___sys_sendmsg+0xee/0x170
[ 2879.311813][   T73]      __sys_sendmsg+0xcd/0x170
[ 2879.311813][   T73]      do_syscall_64+0xc6/0x1e0
[ 2879.311813][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2879.311813][   T73] 
[ 2879.313553][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2879.313553][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2879.313553][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2879.313553][   T73]      ipv6_find_idev+0x102/0x170
[ 2879.313553][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2879.313553][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2879.313553][   T73]      netlink_rcv_skb+0x130/0x360
[ 2879.313553][   T73]      netlink_unicast+0x449/0x710
[ 2879.313553][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2879.313553][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2879.313553][   T73]      ___sys_sendmsg+0xee/0x170
[ 2879.313553][   T73]      __sys_sendmsg+0xcd/0x170
[ 2879.313553][   T73]      do_syscall_64+0xc6/0x1e0
[ 2879.313553][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2879.313553][   T73] 
[ 2879.315451][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2879.315758][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2879.315758][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2879.315758][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2879.315758][   T73]      fib6_nh_init+0xa22/0x1580
[ 2879.315758][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2879.315758][   T73]      ip6_route_add+0x1c/0x140
[ 2879.315758][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2879.315758][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2879.315758][   T73]      netlink_rcv_skb+0x130/0x360
[ 2879.315758][   T73]      netlink_unicast+0x449/0x710
[ 2879.315758][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2879.315758][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2879.315758][   T73]      ___sys_sendmsg+0xee/0x170
[ 2879.315758][   T73]      __sys_sendmsg+0xcd/0x170
[ 2879.315758][   T73]      do_syscall_64+0xc6/0x1e0
[ 2879.315758][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2879.315758][   T73] 
[ 2879.318074][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2879.318074][   T73]      dst_init+0x84/0x4a0
[ 2879.318074][   T73]      dst_alloc+0x97/0x150
[ 2879.318074][   T73]      ip6_dst_alloc+0x23/0x90
[ 2879.318074][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2879.318074][   T73]      ip6_pol_route+0x56f/0x840
[ 2879.318074][   T73]      fib6_rule_lookup+0x456/0x630
[ 2879.318074][   T73]      ip6_route_input+0x59c/0xa50
[ 2879.318074][   T73]      ipv6_rcv+0x397/0x810
[ 2879.318074][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2879.318074][   T73]      process_backlog+0x101/0x620
[ 2879.318074][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2879.318074][   T73]      net_rx_action+0x495/0xbe0
[ 2879.318074][   T73]      __do_softirq+0x1b5/0x7f6
[ 2879.318074][   T73] 
[ 2879.320149][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2879.320149][   T73]      netdev_get_by_index+0x5e/0x80
[ 2879.320149][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2879.320149][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2879.320149][   T73]      ip6_route_add+0x1c/0x140
[ 2879.320149][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2879.320149][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2879.320149][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2879.320149][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2879.320149][   T73]      netlink_rcv_skb+0x130/0x360
[ 2879.320149][   T73]      netlink_unicast+0x449/0x710
[ 2879.320149][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2879.320149][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2879.320149][   T73]      ___sys_sendmsg+0xee/0x170
[ 2879.320149][   T73]      __sys_sendmsg+0xcd/0x170
[ 2879.320149][   T73]      do_syscall_64+0xc6/0x1e0
[ 2879.320149][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2879.320149][   T73] 
[ 2879.322585][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2879.322585][   T73]      netdev_get_by_index+0x5e/0x80
[ 2879.322585][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2879.322585][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2879.322585][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2879.322585][   T73]      ipv6_add_addr+0x411/0x2000
[ 2879.322585][   T73]      inet6_addr_add+0x30e/0xa40
[ 2879.322585][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2879.322585][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2879.322585][   T73]      netlink_rcv_skb+0x130/0x360
[ 2879.322585][   T73]      netlink_unicast+0x449/0x710
[ 2879.322585][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2879.322585][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2879.322585][   T73]      ___sys_sendmsg+0xee/0x170
[ 2879.322585][   T73]      __sys_sendmsg+0xcd/0x170
[ 2879.322585][   T73]      do_syscall_64+0xc6/0x1e0
[ 2879.322585][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2879.322585][   T73] 
[ 2879.325079][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2879.325079][   T73]      netdev_get_by_index+0x5e/0x80
[ 2879.325079][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2879.325079][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2879.325079][   T73]      ip6_route_add+0x1c/0x140
[ 2879.325079][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2879.325079][   T73]      addrconf_add_dev+0xe2/0x170
[ 2879.325079][   T73]      inet6_addr_add+0x12f/0xa40
[ 2879.325079][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2879.325079][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2879.325079][   T73]      netlink_rcv_skb+0x130/0x360
[ 2879.325079][   T73]      netlink_unicast+0x449/0x710
[ 2879.325079][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2879.325079][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2879.325079][   T73]      ___sys_sendmsg+0xee/0x170
[ 2879.325079][   T73]      __sys_sendmsg+0xcd/0x170
[ 2879.325079][   T73]      do_syscall_64+0xc6/0x1e0
[ 2879.325079][   T73] 
[ 2879.327531][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2879.327531][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2879.327531][   T73]      ipv6_find_idev+0x102/0x170
[ 2879.327531][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2879.327531][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2879.327531][   T73]      netlink_rcv_skb+0x130/0x360
[ 2879.327531][   T73]      netlink_unicast+0x449/0x710
[ 2879.327531][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2879.327531][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2879.327531][   T73]      ___sys_sendmsg+0xee/0x170
[ 2879.327531][   T73]      __sys_sendmsg+0xcd/0x170
[ 2879.327531][   T73]      do_syscall_64+0xc6/0x1e0
[ 2879.327531][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2879.327531][   T73] 
[ 2879.329496][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2879.329496][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2879.329496][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2879.329496][   T73]      ipv6_find_idev+0x102/0x170
[ 2879.329496][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2879.329496][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2879.329496][   T73]      netlink_rcv_skb+0x130/0x360
[ 2879.329496][   T73]      netlink_unicast+0x449/0x710
[ 2879.329496][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2879.329496][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2879.329496][   T73]      ___sys_sendmsg+0xee/0x170
[ 2879.329496][   T73]      __sys_sendmsg+0xcd/0x170
[ 2879.329496][   T73]      do_syscall_64+0xc6/0x1e0
[ 2879.329496][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2879.329496][   T73] 
[ 2879.331568][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2879.332375][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2879.332375][   T73]      netdev_get_by_index+0x5e/0x80
[ 2879.332375][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2879.332375][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2879.332375][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2879.332375][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2879.332375][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2879.332375][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2879.332375][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2879.332375][   T73]      addrconf_dad_begin+0x310/0x670
[ 2879.332375][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2879.332375][   T73]      process_one_work+0x84d/0x18a0
[ 2879.332375][   T73]      worker_thread+0x587/0xd30
[ 2879.332375][   T73]      kthread+0x28a/0x350
[ 2879.332375][   T73]      ret_from_fork+0x31/0x70
[ 2879.332375][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2879.332375][   T73] 
[ 2879.334522][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2879.334522][   T73]      netdev_get_by_index+0x5e/0x80
[ 2879.334522][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2879.334522][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2879.334522][   T73]      ip6_route_add+0x1c/0x140
[ 2879.334522][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2879.334522][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2879.334522][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2879.334522][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2879.334522][   T73]      netlink_rcv_skb+0x130/0x360
[ 2879.334522][   T73]      netlink_unicast+0x449/0x710
[ 2879.334522][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2879.334522][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2879.334522][   T73]      ___sys_sendmsg+0xee/0x170
[ 2879.334522][   T73]      __sys_sendmsg+0xcd/0x170
[ 2879.334522][   T73]      do_syscall_64+0xc6/0x1e0
[ 2879.334522][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2879.334522][   T73] 
[ 2879.336767][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2879.336767][   T73]      netdev_get_by_index+0x5e/0x80
[ 2879.336767][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2879.336767][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2879.336767][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2879.336767][   T73]      ipv6_add_addr+0x411/0x2000
[ 2879.336767][   T73]      inet6_addr_add+0x30e/0xa40
[ 2879.336767][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2879.336767][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2879.336767][   T73]      netlink_rcv_skb+0x130/0x360
[ 2879.336767][   T73]      netlink_unicast+0x449/0x710
[ 2879.336767][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2879.336767][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2879.336767][   T73]      ___sys_sendmsg+0xee/0x170
[ 2879.336767][   T73]      __sys_sendmsg+0xcd/0x170
[ 2879.336767][   T73]      do_syscall_64+0xc6/0x1e0
[ 2879.336767][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2879.336767][   T73] 
[ 2879.339252][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2879.339252][   T73]      netdev_get_by_index+0x5e/0x80
[ 2879.339252][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2879.339252][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2879.339252][   T73]      ip6_route_add+0x1c/0x140
[ 2879.339252][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2879.339252][   T73]      addrconf_add_dev+0xe2/0x170
[ 2879.339252][   T73]      inet6_addr_add+0x12f/0xa40
[ 2879.339252][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2879.339252][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2879.339252][   T73]      netlink_rcv_skb+0x130/0x360
[ 2879.339252][   T73]      netlink_unicast+0x449/0x710
[ 2879.339252][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2879.339252][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2879.339252][   T73]      ___sys_sendmsg+0xee/0x170
[ 2879.339252][   T73]      __sys_sendmsg+0xcd/0x170
[ 2879.339252][   T73]      do_syscall_64+0xc6/0x1e0
[ 2879.339252][   T73] 
[ 2879.341718][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2879.341718][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2879.341718][   T73]      ipv6_find_idev+0x102/0x170
[ 2879.341718][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2879.341718][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2879.341718][   T73]      netlink_rcv_skb+0x130/0x360
[ 2879.341718][   T73]      netlink_unicast+0x449/0x710
[ 2879.341718][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2879.341718][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2879.341718][   T73]      ___sys_sendmsg+0xee/0x170
[ 2879.341718][   T73]      __sys_sendmsg+0xcd/0x170
[ 2879.341718][   T73]      do_syscall_64+0xc6/0x1e0
[ 2879.341718][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2879.341718][   T73] 
[ 2879.343678][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2879.343678][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2879.343678][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2879.343678][   T73]      ipv6_find_idev+0x102/0x170
[ 2879.343678][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2879.343678][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2879.343678][   T73]      netlink_rcv_skb+0x130/0x360
[ 2879.343678][   T73]      netlink_unicast+0x449/0x710
[ 2879.343678][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2879.343678][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2879.343678][   T73]      ___sys_sendmsg+0xee/0x170
[ 2879.343678][   T73]      __sys_sendmsg+0xcd/0x170
[ 2879.343678][   T73]      do_syscall_64+0xc6/0x1e0
[ 2879.343678][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2879.343678][   T73] 
[ 2889.455785][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2889.456271][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2889.456271][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2889.456271][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2889.456271][   T73]      fib6_nh_init+0xa22/0x1580
[ 2889.456271][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2889.456271][   T73]      ip6_route_add+0x1c/0x140
[ 2889.456271][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2889.456271][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2889.456271][   T73]      netlink_rcv_skb+0x130/0x360
[ 2889.456271][   T73]      netlink_unicast+0x449/0x710
[ 2889.456271][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2889.456271][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2889.456271][   T73]      ___sys_sendmsg+0xee/0x170
[ 2889.456271][   T73]      __sys_sendmsg+0xcd/0x170
[ 2889.456271][   T73]      do_syscall_64+0xc6/0x1e0
[ 2889.456271][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2889.456271][   T73] 
[ 2889.458419][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2889.458419][   T73]      dst_init+0x84/0x4a0
[ 2889.458419][   T73]      dst_alloc+0x97/0x150
[ 2889.458419][   T73]      ip6_dst_alloc+0x23/0x90
[ 2889.458419][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2889.458419][   T73]      ip6_pol_route+0x56f/0x840
[ 2889.458419][   T73]      fib6_rule_lookup+0x456/0x630
[ 2889.458419][   T73]      ip6_route_input+0x59c/0xa50
[ 2889.458419][   T73]      ipv6_rcv+0x397/0x810
[ 2889.458419][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2889.458419][   T73]      process_backlog+0x101/0x620
[ 2889.458419][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2889.458419][   T73]      net_rx_action+0x495/0xbe0
[ 2889.458419][   T73]      __do_softirq+0x1b5/0x7f6
[ 2889.458419][   T73] 
[ 2889.460257][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2889.460257][   T73]      netdev_get_by_index+0x5e/0x80
[ 2889.460257][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2889.460257][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2889.460257][   T73]      ip6_route_add+0x1c/0x140
[ 2889.460257][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2889.460257][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2889.460257][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2889.460257][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2889.460257][   T73]      netlink_rcv_skb+0x130/0x360
[ 2889.460257][   T73]      netlink_unicast+0x449/0x710
[ 2889.460257][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2889.460257][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2889.460257][   T73]      ___sys_sendmsg+0xee/0x170
[ 2889.460257][   T73]      __sys_sendmsg+0xcd/0x170
[ 2889.460257][   T73]      do_syscall_64+0xc6/0x1e0
[ 2889.460257][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2889.460257][   T73] 
[ 2889.462523][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2889.462523][   T73]      netdev_get_by_index+0x5e/0x80
[ 2889.462523][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2889.462523][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2889.462523][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2889.462523][   T73]      ipv6_add_addr+0x411/0x2000
[ 2889.462523][   T73]      inet6_addr_add+0x30e/0xa40
[ 2889.462523][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2889.462523][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2889.462523][   T73]      netlink_rcv_skb+0x130/0x360
[ 2889.462523][   T73]      netlink_unicast+0x449/0x710
[ 2889.462523][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2889.462523][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2889.462523][   T73]      ___sys_sendmsg+0xee/0x170
[ 2889.462523][   T73]      __sys_sendmsg+0xcd/0x170
[ 2889.462523][   T73]      do_syscall_64+0xc6/0x1e0
[ 2889.462523][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2889.462523][   T73] 
[ 2889.464769][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2889.464769][   T73]      netdev_get_by_index+0x5e/0x80
[ 2889.464769][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2889.464769][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2889.464769][   T73]      ip6_route_add+0x1c/0x140
[ 2889.464769][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2889.464769][   T73]      addrconf_add_dev+0xe2/0x170
[ 2889.464769][   T73]      inet6_addr_add+0x12f/0xa40
[ 2889.464769][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2889.464769][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2889.464769][   T73]      netlink_rcv_skb+0x130/0x360
[ 2889.464769][   T73]      netlink_unicast+0x449/0x710
[ 2889.464769][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2889.464769][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2889.464769][   T73]      ___sys_sendmsg+0xee/0x170
[ 2889.464769][   T73]      __sys_sendmsg+0xcd/0x170
[ 2889.464769][   T73]      do_syscall_64+0xc6/0x1e0
[ 2889.464769][   T73] 
[ 2889.466984][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2889.466984][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2889.466984][   T73]      ipv6_find_idev+0x102/0x170
[ 2889.466984][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2889.466984][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2889.466984][   T73]      netlink_rcv_skb+0x130/0x360
[ 2889.466984][   T73]      netlink_unicast+0x449/0x710
[ 2889.466984][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2889.466984][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2889.466984][   T73]      ___sys_sendmsg+0xee/0x170
[ 2889.466984][   T73]      __sys_sendmsg+0xcd/0x170
[ 2889.466984][   T73]      do_syscall_64+0xc6/0x1e0
[ 2889.466984][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2889.466984][   T73] 
[ 2889.468714][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2889.468714][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2889.468714][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2889.468714][   T73]      ipv6_find_idev+0x102/0x170
[ 2889.468714][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2889.468714][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2889.468714][   T73]      netlink_rcv_skb+0x130/0x360
[ 2889.468714][   T73]      netlink_unicast+0x449/0x710
[ 2889.468714][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2889.468714][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2889.468714][   T73]      ___sys_sendmsg+0xee/0x170
[ 2889.468714][   T73]      __sys_sendmsg+0xcd/0x170
[ 2889.468714][   T73]      do_syscall_64+0xc6/0x1e0
[ 2889.468714][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2889.468714][   T73] 
[ 2889.470599][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2889.470912][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2889.470912][   T73]      netdev_get_by_index+0x5e/0x80
[ 2889.470912][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2889.470912][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2889.470912][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2889.470912][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2889.470912][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2889.470912][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2889.470912][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2889.470912][   T73]      addrconf_dad_begin+0x310/0x670
[ 2889.470912][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2889.470912][   T73]      process_one_work+0x84d/0x18a0
[ 2889.470912][   T73]      worker_thread+0x587/0xd30
[ 2889.470912][   T73]      kthread+0x28a/0x350
[ 2889.470912][   T73]      ret_from_fork+0x31/0x70
[ 2889.470912][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2889.470912][   T73] 
[ 2889.473064][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2889.473064][   T73]      netdev_get_by_index+0x5e/0x80
[ 2889.473064][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2889.473064][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2889.473064][   T73]      ip6_route_add+0x1c/0x140
[ 2889.473064][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2889.473064][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2889.473064][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2889.473064][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2889.473064][   T73]      netlink_rcv_skb+0x130/0x360
[ 2889.473064][   T73]      netlink_unicast+0x449/0x710
[ 2889.473064][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2889.473064][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2889.473064][   T73]      ___sys_sendmsg+0xee/0x170
[ 2889.473064][   T73]      __sys_sendmsg+0xcd/0x170
[ 2889.473064][   T73]      do_syscall_64+0xc6/0x1e0
[ 2889.473064][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2889.473064][   T73] 
[ 2889.475313][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2889.475313][   T73]      netdev_get_by_index+0x5e/0x80
[ 2889.475313][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2889.475313][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2889.475313][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2889.475313][   T73]      ipv6_add_addr+0x411/0x2000
[ 2889.475313][   T73]      inet6_addr_add+0x30e/0xa40
[ 2889.475313][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2889.475313][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2889.475313][   T73]      netlink_rcv_skb+0x130/0x360
[ 2889.475313][   T73]      netlink_unicast+0x449/0x710
[ 2889.475313][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2889.475313][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2889.475313][   T73]      ___sys_sendmsg+0xee/0x170
[ 2889.475313][   T73]      __sys_sendmsg+0xcd/0x170
[ 2889.475313][   T73]      do_syscall_64+0xc6/0x1e0
[ 2889.475313][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2889.475313][   T73] 
[ 2889.477547][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2889.477547][   T73]      netdev_get_by_index+0x5e/0x80
[ 2889.477547][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2889.477547][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2889.477547][   T73]      ip6_route_add+0x1c/0x140
[ 2889.477547][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2889.477547][   T73]      addrconf_add_dev+0xe2/0x170
[ 2889.477547][   T73]      inet6_addr_add+0x12f/0xa40
[ 2889.477547][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2889.477547][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2889.477547][   T73]      netlink_rcv_skb+0x130/0x360
[ 2889.477547][   T73]      netlink_unicast+0x449/0x710
[ 2889.477547][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2889.477547][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2889.477547][   T73]      ___sys_sendmsg+0xee/0x170
[ 2889.477547][   T73]      __sys_sendmsg+0xcd/0x170
[ 2889.477547][   T73]      do_syscall_64+0xc6/0x1e0
[ 2889.477547][   T73] 
[ 2889.479744][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2889.479744][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2889.479744][   T73]      ipv6_find_idev+0x102/0x170
[ 2889.479744][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2889.479744][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2889.479744][   T73]      netlink_rcv_skb+0x130/0x360
[ 2889.479744][   T73]      netlink_unicast+0x449/0x710
[ 2889.479744][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2889.479744][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2889.479744][   T73]      ___sys_sendmsg+0xee/0x170
[ 2889.479744][   T73]      __sys_sendmsg+0xcd/0x170
[ 2889.479744][   T73]      do_syscall_64+0xc6/0x1e0
[ 2889.479744][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2889.479744][   T73] 
[ 2889.481471][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2889.481471][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2889.481471][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2889.481471][   T73]      ipv6_find_idev+0x102/0x170
[ 2889.481471][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2889.481471][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2889.481471][   T73]      netlink_rcv_skb+0x130/0x360
[ 2889.481471][   T73]      netlink_unicast+0x449/0x710
[ 2889.481471][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2889.481471][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2889.481471][   T73]      ___sys_sendmsg+0xee/0x170
[ 2889.481471][   T73]      __sys_sendmsg+0xcd/0x170
[ 2889.481471][   T73]      do_syscall_64+0xc6/0x1e0
[ 2889.481471][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2889.481471][   T73] 
[ 2889.483472][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2889.483773][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2889.483773][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2889.483773][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2889.483773][   T73]      fib6_nh_init+0xa22/0x1580
[ 2889.483773][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2889.483773][   T73]      ip6_route_add+0x1c/0x140
[ 2889.483773][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2889.483773][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2889.483773][   T73]      netlink_rcv_skb+0x130/0x360
[ 2889.483773][   T73]      netlink_unicast+0x449/0x710
[ 2889.483773][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2889.483773][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2889.483773][   T73]      ___sys_sendmsg+0xee/0x170
[ 2889.483773][   T73]      __sys_sendmsg+0xcd/0x170
[ 2889.483773][   T73]      do_syscall_64+0xc6/0x1e0
[ 2889.483773][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2889.483773][   T73] 
[ 2889.486056][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2889.486056][   T73]      dst_init+0x84/0x4a0
[ 2889.486056][   T73]      dst_alloc+0x97/0x150
[ 2889.486056][   T73]      ip6_dst_alloc+0x23/0x90
[ 2889.486056][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2889.486056][   T73]      ip6_pol_route+0x56f/0x840
[ 2889.486056][   T73]      fib6_rule_lookup+0x456/0x630
[ 2889.486056][   T73]      ip6_route_input+0x59c/0xa50
[ 2889.486056][   T73]      ipv6_rcv+0x397/0x810
[ 2889.486056][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2889.486056][   T73]      process_backlog+0x101/0x620
[ 2889.486056][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2889.486056][   T73]      net_rx_action+0x495/0xbe0
[ 2889.486056][   T73]      __do_softirq+0x1b5/0x7f6
[ 2889.486056][   T73] 
[ 2889.488095][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2889.488095][   T73]      netdev_get_by_index+0x5e/0x80
[ 2889.488095][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2889.488095][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2889.488095][   T73]      ip6_route_add+0x1c/0x140
[ 2889.488095][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2889.488095][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2889.488095][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2889.488095][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2889.488095][   T73]      netlink_rcv_skb+0x130/0x360
[ 2889.488095][   T73]      netlink_unicast+0x449/0x710
[ 2889.488095][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2889.488095][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2889.488095][   T73]      ___sys_sendmsg+0xee/0x170
[ 2889.488095][   T73]      __sys_sendmsg+0xcd/0x170
[ 2889.488095][   T73]      do_syscall_64+0xc6/0x1e0
[ 2889.488095][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2889.488095][   T73] 
[ 2889.490415][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2889.490415][   T73]      netdev_get_by_index+0x5e/0x80
[ 2889.490415][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2889.490415][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2889.490415][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2889.490415][   T73]      ipv6_add_addr+0x411/0x2000
[ 2889.490415][   T73]      inet6_addr_add+0x30e/0xa40
[ 2889.490415][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2889.490415][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2889.490415][   T73]      netlink_rcv_skb+0x130/0x360
[ 2889.490415][   T73]      netlink_unicast+0x449/0x710
[ 2889.490415][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2889.490415][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2889.490415][   T73]      ___sys_sendmsg+0xee/0x170
[ 2889.490415][   T73]      __sys_sendmsg+0xcd/0x170
[ 2889.490415][   T73]      do_syscall_64+0xc6/0x1e0
[ 2889.490415][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2889.490415][   T73] 
[ 2889.492821][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2889.492821][   T73]      netdev_get_by_index+0x5e/0x80
[ 2889.492821][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2889.492821][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2889.492821][   T73]      ip6_route_add+0x1c/0x140
[ 2889.492821][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2889.492821][   T73]      addrconf_add_dev+0xe2/0x170
[ 2889.492821][   T73]      inet6_addr_add+0x12f/0xa40
[ 2889.492821][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2889.492821][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2889.492821][   T73]      netlink_rcv_skb+0x130/0x360
[ 2889.492821][   T73]      netlink_unicast+0x449/0x710
[ 2889.492821][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2889.492821][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2889.492821][   T73]      ___sys_sendmsg+0xee/0x170
[ 2889.492821][   T73]      __sys_sendmsg+0xcd/0x170
[ 2889.492821][   T73]      do_syscall_64+0xc6/0x1e0
[ 2889.492821][   T73] 
[ 2889.495183][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2889.495183][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2889.495183][   T73]      ipv6_find_idev+0x102/0x170
[ 2889.495183][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2889.495183][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2889.495183][   T73]      netlink_rcv_skb+0x130/0x360
[ 2889.495183][   T73]      netlink_unicast+0x449/0x710
[ 2889.495183][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2889.495183][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2889.495183][   T73]      ___sys_sendmsg+0xee/0x170
[ 2889.495183][   T73]      __sys_sendmsg+0xcd/0x170
[ 2889.495183][   T73]      do_syscall_64+0xc6/0x1e0
[ 2889.495183][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2889.495183][   T73] 
[ 2889.497072][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2889.497072][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2889.497072][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2889.497072][   T73]      ipv6_find_idev+0x102/0x170
[ 2889.497072][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2889.497072][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2889.497072][   T73]      netlink_rcv_skb+0x130/0x360
[ 2889.497072][   T73]      netlink_unicast+0x449/0x710
[ 2889.497072][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2889.497072][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2889.497072][   T73]      ___sys_sendmsg+0xee/0x170
[ 2889.497072][   T73]      __sys_sendmsg+0xcd/0x170
[ 2889.497072][   T73]      do_syscall_64+0xc6/0x1e0
[ 2889.497072][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2889.497072][   T73] 
[ 2889.499040][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2889.499424][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2889.499424][   T73]      netdev_get_by_index+0x5e/0x80
[ 2889.499424][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2889.499424][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2889.499424][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2889.499424][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2889.499424][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2889.499424][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2889.499424][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2889.499424][   T73]      addrconf_dad_begin+0x310/0x670
[ 2889.499424][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2889.499424][   T73]      process_one_work+0x84d/0x18a0
[ 2889.499424][   T73]      worker_thread+0x587/0xd30
[ 2889.499424][   T73]      kthread+0x28a/0x350
[ 2889.499424][   T73]      ret_from_fork+0x31/0x70
[ 2889.499424][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2889.499424][   T73] 
[ 2889.501629][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2889.501629][   T73]      netdev_get_by_index+0x5e/0x80
[ 2889.501629][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2889.501629][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2889.501629][   T73]      ip6_route_add+0x1c/0x140
[ 2889.501629][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2889.501629][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2889.501629][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2889.501629][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2889.501629][   T73]      netlink_rcv_skb+0x130/0x360
[ 2889.501629][   T73]      netlink_unicast+0x449/0x710
[ 2889.501629][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2889.501629][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2889.501629][   T73]      ___sys_sendmsg+0xee/0x170
[ 2889.501629][   T73]      __sys_sendmsg+0xcd/0x170
[ 2889.501629][   T73]      do_syscall_64+0xc6/0x1e0
[ 2889.501629][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2889.501629][   T73] 
[ 2889.504017][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2889.504017][   T73]      netdev_get_by_index+0x5e/0x80
[ 2889.504017][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2889.504017][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2889.504017][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2889.504017][   T73]      ipv6_add_addr+0x411/0x2000
[ 2889.504017][   T73]      inet6_addr_add+0x30e/0xa40
[ 2889.504017][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2889.504017][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2889.504017][   T73]      netlink_rcv_skb+0x130/0x360
[ 2889.504017][   T73]      netlink_unicast+0x449/0x710
[ 2889.504017][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2889.504017][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2889.504017][   T73]      ___sys_sendmsg+0xee/0x170
[ 2889.504017][   T73]      __sys_sendmsg+0xcd/0x170
[ 2889.504017][   T73]      do_syscall_64+0xc6/0x1e0
[ 2889.504017][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2889.504017][   T73] 
[ 2889.506396][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2889.506396][   T73]      netdev_get_by_index+0x5e/0x80
[ 2889.506396][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2889.506396][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2889.506396][   T73]      ip6_route_add+0x1c/0x140
[ 2889.506396][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2889.506396][   T73]      addrconf_add_dev+0xe2/0x170
[ 2889.506396][   T73]      inet6_addr_add+0x12f/0xa40
[ 2889.506396][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2889.506396][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2889.506396][   T73]      netlink_rcv_skb+0x130/0x360
[ 2889.506396][   T73]      netlink_unicast+0x449/0x710
[ 2889.506396][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2889.506396][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2889.506396][   T73]      ___sys_sendmsg+0xee/0x170
[ 2889.506396][   T73]      __sys_sendmsg+0xcd/0x170
[ 2889.506396][   T73]      do_syscall_64+0xc6/0x1e0
[ 2889.506396][   T73] 
[ 2889.508769][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2889.508769][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2889.508769][   T73]      ipv6_find_idev+0x102/0x170
[ 2889.508769][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2889.508769][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2889.508769][   T73]      netlink_rcv_skb+0x130/0x360
[ 2889.508769][   T73]      netlink_unicast+0x449/0x710
[ 2889.508769][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2889.508769][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2889.508769][   T73]      ___sys_sendmsg+0xee/0x170
[ 2889.508769][   T73]      __sys_sendmsg+0xcd/0x170
[ 2889.508769][   T73]      do_syscall_64+0xc6/0x1e0
[ 2889.508769][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2889.508769][   T73] 
[ 2889.510660][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2889.510660][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2889.510660][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2889.510660][   T73]      ipv6_find_idev+0x102/0x170
[ 2889.510660][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2889.510660][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2889.510660][   T73]      netlink_rcv_skb+0x130/0x360
[ 2889.510660][   T73]      netlink_unicast+0x449/0x710
[ 2889.510660][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2889.510660][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2889.510660][   T73]      ___sys_sendmsg+0xee/0x170
[ 2889.510660][   T73]      __sys_sendmsg+0xcd/0x170
[ 2889.510660][   T73]      do_syscall_64+0xc6/0x1e0
[ 2889.510660][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2889.510660][   T73] 
[ 2899.767738][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2899.768238][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2899.768238][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2899.768238][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2899.768238][   T73]      fib6_nh_init+0xa22/0x1580
[ 2899.768238][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2899.768238][   T73]      ip6_route_add+0x1c/0x140
[ 2899.768238][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2899.768238][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2899.768238][   T73]      netlink_rcv_skb+0x130/0x360
[ 2899.768238][   T73]      netlink_unicast+0x449/0x710
[ 2899.768238][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2899.768238][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2899.768238][   T73]      ___sys_sendmsg+0xee/0x170
[ 2899.768238][   T73]      __sys_sendmsg+0xcd/0x170
[ 2899.768238][   T73]      do_syscall_64+0xc6/0x1e0
[ 2899.768238][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2899.768238][   T73] 
[ 2899.770126][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2899.770126][   T73]      dst_init+0x84/0x4a0
[ 2899.770126][   T73]      dst_alloc+0x97/0x150
[ 2899.770126][   T73]      ip6_dst_alloc+0x23/0x90
[ 2899.770126][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2899.770126][   T73]      ip6_pol_route+0x56f/0x840
[ 2899.770126][   T73]      fib6_rule_lookup+0x456/0x630
[ 2899.770126][   T73]      ip6_route_input+0x59c/0xa50
[ 2899.770126][   T73]      ipv6_rcv+0x397/0x810
[ 2899.770126][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2899.770126][   T73]      process_backlog+0x101/0x620
[ 2899.770126][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2899.770126][   T73]      net_rx_action+0x495/0xbe0
[ 2899.770126][   T73]      __do_softirq+0x1b5/0x7f6
[ 2899.770126][   T73] 
[ 2899.771777][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2899.771777][   T73]      netdev_get_by_index+0x5e/0x80
[ 2899.771777][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2899.771777][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2899.771777][   T73]      ip6_route_add+0x1c/0x140
[ 2899.771777][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2899.771777][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2899.771777][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2899.771777][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2899.771777][   T73]      netlink_rcv_skb+0x130/0x360
[ 2899.771777][   T73]      netlink_unicast+0x449/0x710
[ 2899.771777][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2899.771777][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2899.771777][   T73]      ___sys_sendmsg+0xee/0x170
[ 2899.771777][   T73]      __sys_sendmsg+0xcd/0x170
[ 2899.771777][   T73]      do_syscall_64+0xc6/0x1e0
[ 2899.771777][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2899.771777][   T73] 
[ 2899.773781][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2899.773781][   T73]      netdev_get_by_index+0x5e/0x80
[ 2899.773781][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2899.773781][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2899.773781][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2899.773781][   T73]      ipv6_add_addr+0x411/0x2000
[ 2899.773781][   T73]      inet6_addr_add+0x30e/0xa40
[ 2899.773781][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2899.773781][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2899.773781][   T73]      netlink_rcv_skb+0x130/0x360
[ 2899.773781][   T73]      netlink_unicast+0x449/0x710
[ 2899.773781][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2899.773781][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2899.773781][   T73]      ___sys_sendmsg+0xee/0x170
[ 2899.773781][   T73]      __sys_sendmsg+0xcd/0x170
[ 2899.773781][   T73]      do_syscall_64+0xc6/0x1e0
[ 2899.773781][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2899.773781][   T73] 
[ 2899.775773][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2899.775773][   T73]      netdev_get_by_index+0x5e/0x80
[ 2899.775773][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2899.775773][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2899.775773][   T73]      ip6_route_add+0x1c/0x140
[ 2899.775773][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2899.775773][   T73]      addrconf_add_dev+0xe2/0x170
[ 2899.775773][   T73]      inet6_addr_add+0x12f/0xa40
[ 2899.775773][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2899.775773][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2899.775773][   T73]      netlink_rcv_skb+0x130/0x360
[ 2899.775773][   T73]      netlink_unicast+0x449/0x710
[ 2899.775773][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2899.775773][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2899.775773][   T73]      ___sys_sendmsg+0xee/0x170
[ 2899.775773][   T73]      __sys_sendmsg+0xcd/0x170
[ 2899.775773][   T73]      do_syscall_64+0xc6/0x1e0
[ 2899.775773][   T73] 
[ 2899.777745][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2899.777745][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2899.777745][   T73]      ipv6_find_idev+0x102/0x170
[ 2899.777745][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2899.777745][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2899.777745][   T73]      netlink_rcv_skb+0x130/0x360
[ 2899.777745][   T73]      netlink_unicast+0x449/0x710
[ 2899.777745][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2899.777745][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2899.777745][   T73]      ___sys_sendmsg+0xee/0x170
[ 2899.777745][   T73]      __sys_sendmsg+0xcd/0x170
[ 2899.777745][   T73]      do_syscall_64+0xc6/0x1e0
[ 2899.777745][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2899.777745][   T73] 
[ 2899.779284][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2899.779284][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2899.779284][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2899.779284][   T73]      ipv6_find_idev+0x102/0x170
[ 2899.779284][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2899.779284][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2899.779284][   T73]      netlink_rcv_skb+0x130/0x360
[ 2899.779284][   T73]      netlink_unicast+0x449/0x710
[ 2899.779284][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2899.779284][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2899.779284][   T73]      ___sys_sendmsg+0xee/0x170
[ 2899.779284][   T73]      __sys_sendmsg+0xcd/0x170
[ 2899.779284][   T73]      do_syscall_64+0xc6/0x1e0
[ 2899.779284][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2899.779284][   T73] 
[ 2899.780991][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2899.781279][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2899.781279][   T73]      netdev_get_by_index+0x5e/0x80
[ 2899.781279][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2899.781279][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2899.781279][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2899.781279][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2899.781279][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2899.781279][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2899.781279][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2899.781279][   T73]      addrconf_dad_begin+0x310/0x670
[ 2899.781279][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2899.781279][   T73]      process_one_work+0x84d/0x18a0
[ 2899.781279][   T73]      worker_thread+0x587/0xd30
[ 2899.781279][   T73]      kthread+0x28a/0x350
[ 2899.781279][   T73]      ret_from_fork+0x31/0x70
[ 2899.781279][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2899.781279][   T73] 
[ 2899.783182][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2899.783182][   T73]      netdev_get_by_index+0x5e/0x80
[ 2899.783182][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2899.783182][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2899.783182][   T73]      ip6_route_add+0x1c/0x140
[ 2899.783182][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2899.783182][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2899.783182][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2899.783182][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2899.783182][   T73]      netlink_rcv_skb+0x130/0x360
[ 2899.783182][   T73]      netlink_unicast+0x449/0x710
[ 2899.783182][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2899.783182][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2899.783182][   T73]      ___sys_sendmsg+0xee/0x170
[ 2899.783182][   T73]      __sys_sendmsg+0xcd/0x170
[ 2899.783182][   T73]      do_syscall_64+0xc6/0x1e0
[ 2899.783182][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2899.783182][   T73] 
[ 2899.785173][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2899.785173][   T73]      netdev_get_by_index+0x5e/0x80
[ 2899.785173][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2899.785173][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2899.785173][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2899.785173][   T73]      ipv6_add_addr+0x411/0x2000
[ 2899.785173][   T73]      inet6_addr_add+0x30e/0xa40
[ 2899.785173][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2899.785173][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2899.785173][   T73]      netlink_rcv_skb+0x130/0x360
[ 2899.785173][   T73]      netlink_unicast+0x449/0x710
[ 2899.785173][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2899.785173][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2899.785173][   T73]      ___sys_sendmsg+0xee/0x170
[ 2899.785173][   T73]      __sys_sendmsg+0xcd/0x170
[ 2899.785173][   T73]      do_syscall_64+0xc6/0x1e0
[ 2899.785173][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2899.785173][   T73] 
[ 2899.787159][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2899.787159][   T73]      netdev_get_by_index+0x5e/0x80
[ 2899.787159][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2899.787159][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2899.787159][   T73]      ip6_route_add+0x1c/0x140
[ 2899.787159][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2899.787159][   T73]      addrconf_add_dev+0xe2/0x170
[ 2899.787159][   T73]      inet6_addr_add+0x12f/0xa40
[ 2899.787159][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2899.787159][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2899.787159][   T73]      netlink_rcv_skb+0x130/0x360
[ 2899.787159][   T73]      netlink_unicast+0x449/0x710
[ 2899.787159][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2899.787159][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2899.787159][   T73]      ___sys_sendmsg+0xee/0x170
[ 2899.787159][   T73]      __sys_sendmsg+0xcd/0x170
[ 2899.787159][   T73]      do_syscall_64+0xc6/0x1e0
[ 2899.787159][   T73] 
[ 2899.789112][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2899.789112][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2899.789112][   T73]      ipv6_find_idev+0x102/0x170
[ 2899.789112][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2899.789112][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2899.789112][   T73]      netlink_rcv_skb+0x130/0x360
[ 2899.789112][   T73]      netlink_unicast+0x449/0x710
[ 2899.789112][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2899.789112][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2899.789112][   T73]      ___sys_sendmsg+0xee/0x170
[ 2899.789112][   T73]      __sys_sendmsg+0xcd/0x170
[ 2899.789112][   T73]      do_syscall_64+0xc6/0x1e0
[ 2899.789112][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2899.789112][   T73] 
[ 2899.790642][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2899.790642][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2899.790642][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2899.790642][   T73]      ipv6_find_idev+0x102/0x170
[ 2899.790642][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2899.790642][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2899.790642][   T73]      netlink_rcv_skb+0x130/0x360
[ 2899.790642][   T73]      netlink_unicast+0x449/0x710
[ 2899.790642][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2899.790642][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2899.790642][   T73]      ___sys_sendmsg+0xee/0x170
[ 2899.790642][   T73]      __sys_sendmsg+0xcd/0x170
[ 2899.790642][   T73]      do_syscall_64+0xc6/0x1e0
[ 2899.790642][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2899.790642][   T73] 
[ 2899.792325][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2899.792593][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2899.792593][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2899.792593][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2899.792593][   T73]      fib6_nh_init+0xa22/0x1580
[ 2899.792593][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2899.792593][   T73]      ip6_route_add+0x1c/0x140
[ 2899.792593][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2899.792593][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2899.792593][   T73]      netlink_rcv_skb+0x130/0x360
[ 2899.792593][   T73]      netlink_unicast+0x449/0x710
[ 2899.792593][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2899.792593][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2899.792593][   T73]      ___sys_sendmsg+0xee/0x170
[ 2899.792593][   T73]      __sys_sendmsg+0xcd/0x170
[ 2899.792593][   T73]      do_syscall_64+0xc6/0x1e0
[ 2899.792593][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2899.792593][   T73] 
[ 2899.794596][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2899.794596][   T73]      dst_init+0x84/0x4a0
[ 2899.794596][   T73]      dst_alloc+0x97/0x150
[ 2899.794596][   T73]      ip6_dst_alloc+0x23/0x90
[ 2899.794596][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2899.794596][   T73]      ip6_pol_route+0x56f/0x840
[ 2899.794596][   T73]      fib6_rule_lookup+0x456/0x630
[ 2899.794596][   T73]      ip6_route_input+0x59c/0xa50
[ 2899.794596][   T73]      ipv6_rcv+0x397/0x810
[ 2899.794596][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2899.794596][   T73]      process_backlog+0x101/0x620
[ 2899.794596][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2899.794596][   T73]      net_rx_action+0x495/0xbe0
[ 2899.794596][   T73]      __do_softirq+0x1b5/0x7f6
[ 2899.794596][   T73] 
[ 2899.796414][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2899.796414][   T73]      netdev_get_by_index+0x5e/0x80
[ 2899.796414][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2899.796414][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2899.796414][   T73]      ip6_route_add+0x1c/0x140
[ 2899.796414][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2899.796414][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2899.796414][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2899.796414][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2899.796414][   T73]      netlink_rcv_skb+0x130/0x360
[ 2899.796414][   T73]      netlink_unicast+0x449/0x710
[ 2899.796414][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2899.796414][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2899.796414][   T73]      ___sys_sendmsg+0xee/0x170
[ 2899.796414][   T73]      __sys_sendmsg+0xcd/0x170
[ 2899.796414][   T73]      do_syscall_64+0xc6/0x1e0
[ 2899.796414][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2899.796414][   T73] 
[ 2899.798704][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2899.798704][   T73]      netdev_get_by_index+0x5e/0x80
[ 2899.798704][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2899.798704][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2899.798704][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2899.798704][   T73]      ipv6_add_addr+0x411/0x2000
[ 2899.798704][   T73]      inet6_addr_add+0x30e/0xa40
[ 2899.798704][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2899.798704][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2899.798704][   T73]      netlink_rcv_skb+0x130/0x360
[ 2899.798704][   T73]      netlink_unicast+0x449/0x710
[ 2899.798704][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2899.798704][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2899.798704][   T73]      ___sys_sendmsg+0xee/0x170
[ 2899.798704][   T73]      __sys_sendmsg+0xcd/0x170
[ 2899.798704][   T73]      do_syscall_64+0xc6/0x1e0
[ 2899.798704][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2899.798704][   T73] 
[ 2899.800939][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2899.800939][   T73]      netdev_get_by_index+0x5e/0x80
[ 2899.800939][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2899.800939][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2899.800939][   T73]      ip6_route_add+0x1c/0x140
[ 2899.800939][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2899.800939][   T73]      addrconf_add_dev+0xe2/0x170
[ 2899.800939][   T73]      inet6_addr_add+0x12f/0xa40
[ 2899.800939][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2899.800939][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2899.800939][   T73]      netlink_rcv_skb+0x130/0x360
[ 2899.800939][   T73]      netlink_unicast+0x449/0x710
[ 2899.800939][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2899.800939][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2899.800939][   T73]      ___sys_sendmsg+0xee/0x170
[ 2899.800939][   T73]      __sys_sendmsg+0xcd/0x170
[ 2899.800939][   T73]      do_syscall_64+0xc6/0x1e0
[ 2899.800939][   T73] 
[ 2899.803147][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2899.803147][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2899.803147][   T73]      ipv6_find_idev+0x102/0x170
[ 2899.803147][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2899.803147][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2899.803147][   T73]      netlink_rcv_skb+0x130/0x360
[ 2899.803147][   T73]      netlink_unicast+0x449/0x710
[ 2899.803147][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2899.803147][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2899.803147][   T73]      ___sys_sendmsg+0xee/0x170
[ 2899.803147][   T73]      __sys_sendmsg+0xcd/0x170
[ 2899.803147][   T73]      do_syscall_64+0xc6/0x1e0
[ 2899.803147][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2899.803147][   T73] 
[ 2899.804859][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2899.804859][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2899.804859][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2899.804859][   T73]      ipv6_find_idev+0x102/0x170
[ 2899.804859][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2899.804859][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2899.804859][   T73]      netlink_rcv_skb+0x130/0x360
[ 2899.804859][   T73]      netlink_unicast+0x449/0x710
[ 2899.804859][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2899.804859][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2899.804859][   T73]      ___sys_sendmsg+0xee/0x170
[ 2899.804859][   T73]      __sys_sendmsg+0xcd/0x170
[ 2899.804859][   T73]      do_syscall_64+0xc6/0x1e0
[ 2899.804859][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2899.804859][   T73] 
[ 2899.806708][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2899.806983][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2899.806983][   T73]      netdev_get_by_index+0x5e/0x80
[ 2899.806983][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2899.806983][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2899.806983][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2899.806983][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2899.806983][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2899.806983][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2899.806983][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2899.806983][   T73]      addrconf_dad_begin+0x310/0x670
[ 2899.806983][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2899.806983][   T73]      process_one_work+0x84d/0x18a0
[ 2899.806983][   T73]      worker_thread+0x587/0xd30
[ 2899.806983][   T73]      kthread+0x28a/0x350
[ 2899.806983][   T73]      ret_from_fork+0x31/0x70
[ 2899.806983][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2899.806983][   T73] 
[ 2899.809190][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2899.809190][   T73]      netdev_get_by_index+0x5e/0x80
[ 2899.809190][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2899.809190][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2899.809190][   T73]      ip6_route_add+0x1c/0x140
[ 2899.809190][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2899.809190][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2899.809190][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2899.809190][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2899.809190][   T73]      netlink_rcv_skb+0x130/0x360
[ 2899.809190][   T73]      netlink_unicast+0x449/0x710
[ 2899.809190][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2899.809190][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2899.809190][   T73]      ___sys_sendmsg+0xee/0x170
[ 2899.809190][   T73]      __sys_sendmsg+0xcd/0x170
[ 2899.809190][   T73]      do_syscall_64+0xc6/0x1e0
[ 2899.809190][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2899.809190][   T73] 
[ 2899.811421][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2899.811421][   T73]      netdev_get_by_index+0x5e/0x80
[ 2899.811421][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2899.811421][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2899.811421][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2899.811421][   T73]      ipv6_add_addr+0x411/0x2000
[ 2899.811421][   T73]      inet6_addr_add+0x30e/0xa40
[ 2899.811421][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2899.811421][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2899.811421][   T73]      netlink_rcv_skb+0x130/0x360
[ 2899.811421][   T73]      netlink_unicast+0x449/0x710
[ 2899.811421][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2899.811421][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2899.811421][   T73]      ___sys_sendmsg+0xee/0x170
[ 2899.811421][   T73]      __sys_sendmsg+0xcd/0x170
[ 2899.811421][   T73]      do_syscall_64+0xc6/0x1e0
[ 2899.811421][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2899.811421][   T73] 
[ 2899.813658][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2899.813658][   T73]      netdev_get_by_index+0x5e/0x80
[ 2899.813658][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2899.813658][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2899.813658][   T73]      ip6_route_add+0x1c/0x140
[ 2899.813658][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2899.813658][   T73]      addrconf_add_dev+0xe2/0x170
[ 2899.813658][   T73]      inet6_addr_add+0x12f/0xa40
[ 2899.813658][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2899.813658][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2899.813658][   T73]      netlink_rcv_skb+0x130/0x360
[ 2899.813658][   T73]      netlink_unicast+0x449/0x710
[ 2899.813658][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2899.813658][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2899.813658][   T73]      ___sys_sendmsg+0xee/0x170
[ 2899.813658][   T73]      __sys_sendmsg+0xcd/0x170
[ 2899.813658][   T73]      do_syscall_64+0xc6/0x1e0
[ 2899.813658][   T73] 
[ 2899.815792][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2899.815792][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2899.815792][   T73]      ipv6_find_idev+0x102/0x170
[ 2899.815792][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2899.815792][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2899.815792][   T73]      netlink_rcv_skb+0x130/0x360
[ 2899.815792][   T73]      netlink_unicast+0x449/0x710
[ 2899.815792][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2899.815792][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2899.815792][   T73]      ___sys_sendmsg+0xee/0x170
[ 2899.815792][   T73]      __sys_sendmsg+0xcd/0x170
[ 2899.815792][   T73]      do_syscall_64+0xc6/0x1e0
[ 2899.815792][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2899.815792][   T73] 
[ 2899.817565][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2899.817565][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2899.817565][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2899.817565][   T73]      ipv6_find_idev+0x102/0x170
[ 2899.817565][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2899.817565][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2899.817565][   T73]      netlink_rcv_skb+0x130/0x360
[ 2899.817565][   T73]      netlink_unicast+0x449/0x710
[ 2899.817565][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2899.817565][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2899.817565][   T73]      ___sys_sendmsg+0xee/0x170
[ 2899.817565][   T73]      __sys_sendmsg+0xcd/0x170
[ 2899.817565][   T73]      do_syscall_64+0xc6/0x1e0
[ 2899.817565][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2899.817565][   T73] 
[ 2910.071801][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2910.072245][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2910.072245][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2910.072245][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2910.072245][   T73]      fib6_nh_init+0xa22/0x1580
[ 2910.072245][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2910.072245][   T73]      ip6_route_add+0x1c/0x140
[ 2910.072245][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2910.072245][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2910.072245][   T73]      netlink_rcv_skb+0x130/0x360
[ 2910.072245][   T73]      netlink_unicast+0x449/0x710
[ 2910.072245][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2910.072245][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2910.072245][   T73]      ___sys_sendmsg+0xee/0x170
[ 2910.072245][   T73]      __sys_sendmsg+0xcd/0x170
[ 2910.072245][   T73]      do_syscall_64+0xc6/0x1e0
[ 2910.072245][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2910.072245][   T73] 
[ 2910.074130][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2910.074130][   T73]      dst_init+0x84/0x4a0
[ 2910.074130][   T73]      dst_alloc+0x97/0x150
[ 2910.074130][   T73]      ip6_dst_alloc+0x23/0x90
[ 2910.074130][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2910.074130][   T73]      ip6_pol_route+0x56f/0x840
[ 2910.074130][   T73]      fib6_rule_lookup+0x456/0x630
[ 2910.074130][   T73]      ip6_route_input+0x59c/0xa50
[ 2910.074130][   T73]      ipv6_rcv+0x397/0x810
[ 2910.074130][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2910.074130][   T73]      process_backlog+0x101/0x620
[ 2910.074130][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2910.074130][   T73]      net_rx_action+0x495/0xbe0
[ 2910.074130][   T73]      __do_softirq+0x1b5/0x7f6
[ 2910.074130][   T73] 
[ 2910.075770][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2910.075770][   T73]      netdev_get_by_index+0x5e/0x80
[ 2910.075770][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2910.075770][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2910.075770][   T73]      ip6_route_add+0x1c/0x140
[ 2910.075770][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2910.075770][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2910.075770][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2910.075770][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2910.075770][   T73]      netlink_rcv_skb+0x130/0x360
[ 2910.075770][   T73]      netlink_unicast+0x449/0x710
[ 2910.075770][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2910.075770][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2910.075770][   T73]      ___sys_sendmsg+0xee/0x170
[ 2910.075770][   T73]      __sys_sendmsg+0xcd/0x170
[ 2910.075770][   T73]      do_syscall_64+0xc6/0x1e0
[ 2910.075770][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2910.075770][   T73] 
[ 2910.077901][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2910.077901][   T73]      netdev_get_by_index+0x5e/0x80
[ 2910.077901][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2910.077901][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2910.077901][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2910.077901][   T73]      ipv6_add_addr+0x411/0x2000
[ 2910.077901][   T73]      inet6_addr_add+0x30e/0xa40
[ 2910.077901][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2910.077901][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2910.077901][   T73]      netlink_rcv_skb+0x130/0x360
[ 2910.077901][   T73]      netlink_unicast+0x449/0x710
[ 2910.077901][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2910.077901][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2910.077901][   T73]      ___sys_sendmsg+0xee/0x170
[ 2910.077901][   T73]      __sys_sendmsg+0xcd/0x170
[ 2910.077901][   T73]      do_syscall_64+0xc6/0x1e0
[ 2910.077901][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2910.077901][   T73] 
[ 2910.079896][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2910.079896][   T73]      netdev_get_by_index+0x5e/0x80
[ 2910.079896][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2910.079896][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2910.079896][   T73]      ip6_route_add+0x1c/0x140
[ 2910.079896][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2910.079896][   T73]      addrconf_add_dev+0xe2/0x170
[ 2910.079896][   T73]      inet6_addr_add+0x12f/0xa40
[ 2910.079896][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2910.079896][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2910.079896][   T73]      netlink_rcv_skb+0x130/0x360
[ 2910.079896][   T73]      netlink_unicast+0x449/0x710
[ 2910.079896][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2910.079896][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2910.079896][   T73]      ___sys_sendmsg+0xee/0x170
[ 2910.079896][   T73]      __sys_sendmsg+0xcd/0x170
[ 2910.079896][   T73]      do_syscall_64+0xc6/0x1e0
[ 2910.079896][   T73] 
[ 2910.081878][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2910.081878][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2910.081878][   T73]      ipv6_find_idev+0x102/0x170
[ 2910.081878][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2910.081878][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2910.081878][   T73]      netlink_rcv_skb+0x130/0x360
[ 2910.081878][   T73]      netlink_unicast+0x449/0x710
[ 2910.081878][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2910.081878][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2910.081878][   T73]      ___sys_sendmsg+0xee/0x170
[ 2910.081878][   T73]      __sys_sendmsg+0xcd/0x170
[ 2910.081878][   T73]      do_syscall_64+0xc6/0x1e0
[ 2910.081878][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2910.081878][   T73] 
[ 2910.083418][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2910.083418][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2910.083418][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2910.083418][   T73]      ipv6_find_idev+0x102/0x170
[ 2910.083418][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2910.083418][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2910.083418][   T73]      netlink_rcv_skb+0x130/0x360
[ 2910.083418][   T73]      netlink_unicast+0x449/0x710
[ 2910.083418][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2910.083418][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2910.083418][   T73]      ___sys_sendmsg+0xee/0x170
[ 2910.083418][   T73]      __sys_sendmsg+0xcd/0x170
[ 2910.083418][   T73]      do_syscall_64+0xc6/0x1e0
[ 2910.083418][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2910.083418][   T73] 
[ 2910.085112][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2910.085393][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2910.085393][   T73]      netdev_get_by_index+0x5e/0x80
[ 2910.085393][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2910.085393][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2910.085393][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2910.085393][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2910.085393][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2910.085393][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2910.085393][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2910.085393][   T73]      addrconf_dad_begin+0x310/0x670
[ 2910.085393][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2910.085393][   T73]      process_one_work+0x84d/0x18a0
[ 2910.085393][   T73]      worker_thread+0x587/0xd30
[ 2910.085393][   T73]      kthread+0x28a/0x350
[ 2910.085393][   T73]      ret_from_fork+0x31/0x70
[ 2910.085393][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2910.085393][   T73] 
[ 2910.087311][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2910.087311][   T73]      netdev_get_by_index+0x5e/0x80
[ 2910.087311][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2910.087311][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2910.087311][   T73]      ip6_route_add+0x1c/0x140
[ 2910.087311][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2910.087311][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2910.087311][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2910.087311][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2910.087311][   T73]      netlink_rcv_skb+0x130/0x360
[ 2910.087311][   T73]      netlink_unicast+0x449/0x710
[ 2910.087311][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2910.087311][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2910.087311][   T73]      ___sys_sendmsg+0xee/0x170
[ 2910.087311][   T73]      __sys_sendmsg+0xcd/0x170
[ 2910.087311][   T73]      do_syscall_64+0xc6/0x1e0
[ 2910.087311][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2910.087311][   T73] 
[ 2910.089301][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2910.089301][   T73]      netdev_get_by_index+0x5e/0x80
[ 2910.089301][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2910.089301][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2910.089301][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2910.089301][   T73]      ipv6_add_addr+0x411/0x2000
[ 2910.089301][   T73]      inet6_addr_add+0x30e/0xa40
[ 2910.089301][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2910.089301][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2910.089301][   T73]      netlink_rcv_skb+0x130/0x360
[ 2910.089301][   T73]      netlink_unicast+0x449/0x710
[ 2910.089301][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2910.089301][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2910.089301][   T73]      ___sys_sendmsg+0xee/0x170
[ 2910.089301][   T73]      __sys_sendmsg+0xcd/0x170
[ 2910.089301][   T73]      do_syscall_64+0xc6/0x1e0
[ 2910.089301][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2910.089301][   T73] 
[ 2910.091297][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2910.091297][   T73]      netdev_get_by_index+0x5e/0x80
[ 2910.091297][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2910.091297][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2910.091297][   T73]      ip6_route_add+0x1c/0x140
[ 2910.091297][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2910.091297][   T73]      addrconf_add_dev+0xe2/0x170
[ 2910.091297][   T73]      inet6_addr_add+0x12f/0xa40
[ 2910.091297][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2910.091297][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2910.091297][   T73]      netlink_rcv_skb+0x130/0x360
[ 2910.091297][   T73]      netlink_unicast+0x449/0x710
[ 2910.091297][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2910.091297][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2910.091297][   T73]      ___sys_sendmsg+0xee/0x170
[ 2910.091297][   T73]      __sys_sendmsg+0xcd/0x170
[ 2910.091297][   T73]      do_syscall_64+0xc6/0x1e0
[ 2910.091297][   T73] 
[ 2910.093249][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2910.093249][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2910.093249][   T73]      ipv6_find_idev+0x102/0x170
[ 2910.093249][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2910.093249][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2910.093249][   T73]      netlink_rcv_skb+0x130/0x360
[ 2910.093249][   T73]      netlink_unicast+0x449/0x710
[ 2910.093249][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2910.093249][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2910.093249][   T73]      ___sys_sendmsg+0xee/0x170
[ 2910.093249][   T73]      __sys_sendmsg+0xcd/0x170
[ 2910.093249][   T73]      do_syscall_64+0xc6/0x1e0
[ 2910.093249][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2910.093249][   T73] 
[ 2910.094781][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2910.094781][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2910.094781][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2910.094781][   T73]      ipv6_find_idev+0x102/0x170
[ 2910.094781][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2910.094781][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2910.094781][   T73]      netlink_rcv_skb+0x130/0x360
[ 2910.094781][   T73]      netlink_unicast+0x449/0x710
[ 2910.094781][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2910.094781][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2910.094781][   T73]      ___sys_sendmsg+0xee/0x170
[ 2910.094781][   T73]      __sys_sendmsg+0xcd/0x170
[ 2910.094781][   T73]      do_syscall_64+0xc6/0x1e0
[ 2910.094781][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2910.094781][   T73] 
[ 2910.096467][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2910.096753][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2910.096753][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2910.096753][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2910.096753][   T73]      fib6_nh_init+0xa22/0x1580
[ 2910.096753][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2910.096753][   T73]      ip6_route_add+0x1c/0x140
[ 2910.096753][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2910.096753][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2910.096753][   T73]      netlink_rcv_skb+0x130/0x360
[ 2910.096753][   T73]      netlink_unicast+0x449/0x710
[ 2910.096753][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2910.096753][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2910.096753][   T73]      ___sys_sendmsg+0xee/0x170
[ 2910.096753][   T73]      __sys_sendmsg+0xcd/0x170
[ 2910.096753][   T73]      do_syscall_64+0xc6/0x1e0
[ 2910.096753][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2910.096753][   T73] 
[ 2910.098711][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2910.098711][   T73]      dst_init+0x84/0x4a0
[ 2910.098711][   T73]      dst_alloc+0x97/0x150
[ 2910.098711][   T73]      ip6_dst_alloc+0x23/0x90
[ 2910.098711][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2910.098711][   T73]      ip6_pol_route+0x56f/0x840
[ 2910.098711][   T73]      fib6_rule_lookup+0x456/0x630
[ 2910.098711][   T73]      ip6_route_input+0x59c/0xa50
[ 2910.098711][   T73]      ipv6_rcv+0x397/0x810
[ 2910.098711][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2910.098711][   T73]      process_backlog+0x101/0x620
[ 2910.098711][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2910.098711][   T73]      net_rx_action+0x495/0xbe0
[ 2910.098711][   T73]      __do_softirq+0x1b5/0x7f6
[ 2910.098711][   T73] 
[ 2910.100409][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2910.100409][   T73]      netdev_get_by_index+0x5e/0x80
[ 2910.100409][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2910.100409][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2910.100409][   T73]      ip6_route_add+0x1c/0x140
[ 2910.100409][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2910.100409][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2910.100409][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2910.100409][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2910.100409][   T73]      netlink_rcv_skb+0x130/0x360
[ 2910.100409][   T73]      netlink_unicast+0x449/0x710
[ 2910.100409][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2910.100409][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2910.100409][   T73]      ___sys_sendmsg+0xee/0x170
[ 2910.100409][   T73]      __sys_sendmsg+0xcd/0x170
[ 2910.100409][   T73]      do_syscall_64+0xc6/0x1e0
[ 2910.100409][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2910.100409][   T73] 
[ 2910.102543][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2910.102543][   T73]      netdev_get_by_index+0x5e/0x80
[ 2910.102543][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2910.102543][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2910.102543][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2910.102543][   T73]      ipv6_add_addr+0x411/0x2000
[ 2910.102543][   T73]      inet6_addr_add+0x30e/0xa40
[ 2910.102543][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2910.102543][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2910.102543][   T73]      netlink_rcv_skb+0x130/0x360
[ 2910.102543][   T73]      netlink_unicast+0x449/0x710
[ 2910.102543][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2910.102543][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2910.102543][   T73]      ___sys_sendmsg+0xee/0x170
[ 2910.102543][   T73]      __sys_sendmsg+0xcd/0x170
[ 2910.102543][   T73]      do_syscall_64+0xc6/0x1e0
[ 2910.102543][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2910.102543][   T73] 
[ 2910.104675][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2910.104675][   T73]      netdev_get_by_index+0x5e/0x80
[ 2910.104675][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2910.104675][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2910.104675][   T73]      ip6_route_add+0x1c/0x140
[ 2910.104675][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2910.104675][   T73]      addrconf_add_dev+0xe2/0x170
[ 2910.104675][   T73]      inet6_addr_add+0x12f/0xa40
[ 2910.104675][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2910.104675][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2910.104675][   T73]      netlink_rcv_skb+0x130/0x360
[ 2910.104675][   T73]      netlink_unicast+0x449/0x710
[ 2910.104675][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2910.104675][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2910.104675][   T73]      ___sys_sendmsg+0xee/0x170
[ 2910.104675][   T73]      __sys_sendmsg+0xcd/0x170
[ 2910.104675][   T73]      do_syscall_64+0xc6/0x1e0
[ 2910.104675][   T73] 
[ 2910.106781][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2910.106781][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2910.106781][   T73]      ipv6_find_idev+0x102/0x170
[ 2910.106781][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2910.106781][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2910.106781][   T73]      netlink_rcv_skb+0x130/0x360
[ 2910.106781][   T73]      netlink_unicast+0x449/0x710
[ 2910.106781][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2910.106781][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2910.106781][   T73]      ___sys_sendmsg+0xee/0x170
[ 2910.106781][   T73]      __sys_sendmsg+0xcd/0x170
[ 2910.106781][   T73]      do_syscall_64+0xc6/0x1e0
[ 2910.106781][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2910.106781][   T73] 
[ 2910.108459][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2910.108459][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2910.108459][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2910.108459][   T73]      ipv6_find_idev+0x102/0x170
[ 2910.108459][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2910.108459][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2910.108459][   T73]      netlink_rcv_skb+0x130/0x360
[ 2910.108459][   T73]      netlink_unicast+0x449/0x710
[ 2910.108459][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2910.108459][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2910.108459][   T73]      ___sys_sendmsg+0xee/0x170
[ 2910.108459][   T73]      __sys_sendmsg+0xcd/0x170
[ 2910.108459][   T73]      do_syscall_64+0xc6/0x1e0
[ 2910.108459][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2910.108459][   T73] 
[ 2910.110203][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2910.110474][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2910.110474][   T73]      netdev_get_by_index+0x5e/0x80
[ 2910.110474][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2910.110474][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2910.110474][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2910.110474][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2910.110474][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2910.110474][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2910.110474][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2910.110474][   T73]      addrconf_dad_begin+0x310/0x670
[ 2910.110474][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2910.110474][   T73]      process_one_work+0x84d/0x18a0
[ 2910.110474][   T73]      worker_thread+0x587/0xd30
[ 2910.110474][   T73]      kthread+0x28a/0x350
[ 2910.110474][   T73]      ret_from_fork+0x31/0x70
[ 2910.110474][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2910.110474][   T73] 
[ 2910.112526][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2910.112526][   T73]      netdev_get_by_index+0x5e/0x80
[ 2910.112526][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2910.112526][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2910.112526][   T73]      ip6_route_add+0x1c/0x140
[ 2910.112526][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2910.112526][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2910.112526][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2910.112526][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2910.112526][   T73]      netlink_rcv_skb+0x130/0x360
[ 2910.112526][   T73]      netlink_unicast+0x449/0x710
[ 2910.112526][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2910.112526][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2910.112526][   T73]      ___sys_sendmsg+0xee/0x170
[ 2910.112526][   T73]      __sys_sendmsg+0xcd/0x170
[ 2910.112526][   T73]      do_syscall_64+0xc6/0x1e0
[ 2910.112526][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2910.112526][   T73] 
[ 2910.114655][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2910.114655][   T73]      netdev_get_by_index+0x5e/0x80
[ 2910.114655][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2910.114655][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2910.114655][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2910.114655][   T73]      ipv6_add_addr+0x411/0x2000
[ 2910.114655][   T73]      inet6_addr_add+0x30e/0xa40
[ 2910.114655][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2910.114655][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2910.114655][   T73]      netlink_rcv_skb+0x130/0x360
[ 2910.114655][   T73]      netlink_unicast+0x449/0x710
[ 2910.114655][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2910.114655][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2910.114655][   T73]      ___sys_sendmsg+0xee/0x170
[ 2910.114655][   T73]      __sys_sendmsg+0xcd/0x170
[ 2910.114655][   T73]      do_syscall_64+0xc6/0x1e0
[ 2910.114655][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2910.114655][   T73] 
[ 2910.116811][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2910.116811][   T73]      netdev_get_by_index+0x5e/0x80
[ 2910.116811][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2910.116811][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2910.116811][   T73]      ip6_route_add+0x1c/0x140
[ 2910.116811][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2910.116811][   T73]      addrconf_add_dev+0xe2/0x170
[ 2910.116811][   T73]      inet6_addr_add+0x12f/0xa40
[ 2910.116811][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2910.116811][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2910.116811][   T73]      netlink_rcv_skb+0x130/0x360
[ 2910.116811][   T73]      netlink_unicast+0x449/0x710
[ 2910.116811][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2910.116811][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2910.116811][   T73]      ___sys_sendmsg+0xee/0x170
[ 2910.116811][   T73]      __sys_sendmsg+0xcd/0x170
[ 2910.116811][   T73]      do_syscall_64+0xc6/0x1e0
[ 2910.116811][   T73] 
[ 2910.119024][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2910.119024][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2910.119024][   T73]      ipv6_find_idev+0x102/0x170
[ 2910.119024][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2910.119024][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2910.119024][   T73]      netlink_rcv_skb+0x130/0x360
[ 2910.119024][   T73]      netlink_unicast+0x449/0x710
[ 2910.119024][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2910.119024][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2910.119024][   T73]      ___sys_sendmsg+0xee/0x170
[ 2910.119024][   T73]      __sys_sendmsg+0xcd/0x170
[ 2910.119024][   T73]      do_syscall_64+0xc6/0x1e0
[ 2910.119024][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2910.119024][   T73] 
[ 2910.120764][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2910.120764][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2910.120764][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2910.120764][   T73]      ipv6_find_idev+0x102/0x170
[ 2910.120764][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2910.120764][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2910.120764][   T73]      netlink_rcv_skb+0x130/0x360
[ 2910.120764][   T73]      netlink_unicast+0x449/0x710
[ 2910.120764][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2910.120764][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2910.120764][   T73]      ___sys_sendmsg+0xee/0x170
[ 2910.120764][   T73]      __sys_sendmsg+0xcd/0x170
[ 2910.120764][   T73]      do_syscall_64+0xc6/0x1e0
[ 2910.120764][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2910.120764][   T73] 
[ 2920.215815][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2920.216333][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2920.216333][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2920.216333][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2920.216333][   T73]      fib6_nh_init+0xa22/0x1580
[ 2920.216333][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2920.216333][   T73]      ip6_route_add+0x1c/0x140
[ 2920.216333][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2920.216333][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2920.216333][   T73]      netlink_rcv_skb+0x130/0x360
[ 2920.216333][   T73]      netlink_unicast+0x449/0x710
[ 2920.216333][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2920.216333][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2920.216333][   T73]      ___sys_sendmsg+0xee/0x170
[ 2920.216333][   T73]      __sys_sendmsg+0xcd/0x170
[ 2920.216333][   T73]      do_syscall_64+0xc6/0x1e0
[ 2920.216333][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2920.216333][   T73] 
[ 2920.218263][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2920.218263][   T73]      dst_init+0x84/0x4a0
[ 2920.218263][   T73]      dst_alloc+0x97/0x150
[ 2920.218263][   T73]      ip6_dst_alloc+0x23/0x90
[ 2920.218263][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2920.218263][   T73]      ip6_pol_route+0x56f/0x840
[ 2920.218263][   T73]      fib6_rule_lookup+0x456/0x630
[ 2920.218263][   T73]      ip6_route_input+0x59c/0xa50
[ 2920.218263][   T73]      ipv6_rcv+0x397/0x810
[ 2920.218263][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2920.218263][   T73]      process_backlog+0x101/0x620
[ 2920.218263][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2920.218263][   T73]      net_rx_action+0x495/0xbe0
[ 2920.218263][   T73]      __do_softirq+0x1b5/0x7f6
[ 2920.218263][   T73] 
[ 2920.219927][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2920.219927][   T73]      netdev_get_by_index+0x5e/0x80
[ 2920.219927][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2920.219927][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2920.219927][   T73]      ip6_route_add+0x1c/0x140
[ 2920.219927][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2920.219927][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2920.219927][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2920.219927][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2920.219927][   T73]      netlink_rcv_skb+0x130/0x360
[ 2920.219927][   T73]      netlink_unicast+0x449/0x710
[ 2920.219927][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2920.219927][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2920.219927][   T73]      ___sys_sendmsg+0xee/0x170
[ 2920.219927][   T73]      __sys_sendmsg+0xcd/0x170
[ 2920.219927][   T73]      do_syscall_64+0xc6/0x1e0
[ 2920.219927][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2920.219927][   T73] 
[ 2920.221953][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2920.221953][   T73]      netdev_get_by_index+0x5e/0x80
[ 2920.221953][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2920.221953][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2920.221953][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2920.221953][   T73]      ipv6_add_addr+0x411/0x2000
[ 2920.221953][   T73]      inet6_addr_add+0x30e/0xa40
[ 2920.221953][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2920.221953][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2920.221953][   T73]      netlink_rcv_skb+0x130/0x360
[ 2920.221953][   T73]      netlink_unicast+0x449/0x710
[ 2920.221953][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2920.221953][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2920.221953][   T73]      ___sys_sendmsg+0xee/0x170
[ 2920.221953][   T73]      __sys_sendmsg+0xcd/0x170
[ 2920.221953][   T73]      do_syscall_64+0xc6/0x1e0
[ 2920.221953][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2920.221953][   T73] 
[ 2920.224369][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2920.224369][   T73]      netdev_get_by_index+0x5e/0x80
[ 2920.224369][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2920.224369][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2920.224369][   T73]      ip6_route_add+0x1c/0x140
[ 2920.224369][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2920.224369][   T73]      addrconf_add_dev+0xe2/0x170
[ 2920.224369][   T73]      inet6_addr_add+0x12f/0xa40
[ 2920.224369][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2920.224369][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2920.224369][   T73]      netlink_rcv_skb+0x130/0x360
[ 2920.224369][   T73]      netlink_unicast+0x449/0x710
[ 2920.224369][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2920.224369][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2920.224369][   T73]      ___sys_sendmsg+0xee/0x170
[ 2920.224369][   T73]      __sys_sendmsg+0xcd/0x170
[ 2920.224369][   T73]      do_syscall_64+0xc6/0x1e0
[ 2920.224369][   T73] 
[ 2920.226346][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2920.226346][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2920.226346][   T73]      ipv6_find_idev+0x102/0x170
[ 2920.226346][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2920.226346][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2920.226346][   T73]      netlink_rcv_skb+0x130/0x360
[ 2920.226346][   T73]      netlink_unicast+0x449/0x710
[ 2920.226346][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2920.226346][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2920.226346][   T73]      ___sys_sendmsg+0xee/0x170
[ 2920.226346][   T73]      __sys_sendmsg+0xcd/0x170
[ 2920.226346][   T73]      do_syscall_64+0xc6/0x1e0
[ 2920.226346][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2920.226346][   T73] 
[ 2920.227889][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2920.227889][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2920.227889][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2920.227889][   T73]      ipv6_find_idev+0x102/0x170
[ 2920.227889][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2920.227889][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2920.227889][   T73]      netlink_rcv_skb+0x130/0x360
[ 2920.227889][   T73]      netlink_unicast+0x449/0x710
[ 2920.227889][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2920.227889][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2920.227889][   T73]      ___sys_sendmsg+0xee/0x170
[ 2920.227889][   T73]      __sys_sendmsg+0xcd/0x170
[ 2920.227889][   T73]      do_syscall_64+0xc6/0x1e0
[ 2920.227889][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2920.227889][   T73] 
[ 2920.229616][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2920.229916][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2920.229916][   T73]      netdev_get_by_index+0x5e/0x80
[ 2920.229916][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2920.229916][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2920.229916][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2920.229916][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2920.229916][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2920.229916][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2920.229916][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2920.229916][   T73]      addrconf_dad_begin+0x310/0x670
[ 2920.229916][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2920.229916][   T73]      process_one_work+0x84d/0x18a0
[ 2920.229916][   T73]      worker_thread+0x587/0xd30
[ 2920.229916][   T73]      kthread+0x28a/0x350
[ 2920.229916][   T73]      ret_from_fork+0x31/0x70
[ 2920.229916][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2920.229916][   T73] 
[ 2920.231846][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2920.231846][   T73]      netdev_get_by_index+0x5e/0x80
[ 2920.231846][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2920.231846][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2920.231846][   T73]      ip6_route_add+0x1c/0x140
[ 2920.231846][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2920.231846][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2920.231846][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2920.231846][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2920.231846][   T73]      netlink_rcv_skb+0x130/0x360
[ 2920.231846][   T73]      netlink_unicast+0x449/0x710
[ 2920.231846][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2920.231846][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2920.231846][   T73]      ___sys_sendmsg+0xee/0x170
[ 2920.231846][   T73]      __sys_sendmsg+0xcd/0x170
[ 2920.231846][   T73]      do_syscall_64+0xc6/0x1e0
[ 2920.231846][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2920.231846][   T73] 
[ 2920.233853][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2920.233853][   T73]      netdev_get_by_index+0x5e/0x80
[ 2920.233853][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2920.233853][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2920.233853][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2920.233853][   T73]      ipv6_add_addr+0x411/0x2000
[ 2920.233853][   T73]      inet6_addr_add+0x30e/0xa40
[ 2920.233853][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2920.233853][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2920.233853][   T73]      netlink_rcv_skb+0x130/0x360
[ 2920.233853][   T73]      netlink_unicast+0x449/0x710
[ 2920.233853][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2920.233853][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2920.233853][   T73]      ___sys_sendmsg+0xee/0x170
[ 2920.233853][   T73]      __sys_sendmsg+0xcd/0x170
[ 2920.233853][   T73]      do_syscall_64+0xc6/0x1e0
[ 2920.233853][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2920.233853][   T73] 
[ 2920.235860][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2920.235860][   T73]      netdev_get_by_index+0x5e/0x80
[ 2920.235860][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2920.235860][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2920.235860][   T73]      ip6_route_add+0x1c/0x140
[ 2920.235860][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2920.235860][   T73]      addrconf_add_dev+0xe2/0x170
[ 2920.235860][   T73]      inet6_addr_add+0x12f/0xa40
[ 2920.235860][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2920.235860][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2920.235860][   T73]      netlink_rcv_skb+0x130/0x360
[ 2920.235860][   T73]      netlink_unicast+0x449/0x710
[ 2920.235860][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2920.235860][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2920.235860][   T73]      ___sys_sendmsg+0xee/0x170
[ 2920.235860][   T73]      __sys_sendmsg+0xcd/0x170
[ 2920.235860][   T73]      do_syscall_64+0xc6/0x1e0
[ 2920.235860][   T73] 
[ 2920.237835][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2920.237835][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2920.237835][   T73]      ipv6_find_idev+0x102/0x170
[ 2920.237835][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2920.237835][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2920.237835][   T73]      netlink_rcv_skb+0x130/0x360
[ 2920.237835][   T73]      netlink_unicast+0x449/0x710
[ 2920.237835][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2920.237835][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2920.237835][   T73]      ___sys_sendmsg+0xee/0x170
[ 2920.237835][   T73]      __sys_sendmsg+0xcd/0x170
[ 2920.237835][   T73]      do_syscall_64+0xc6/0x1e0
[ 2920.237835][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2920.237835][   T73] 
[ 2920.239379][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2920.239379][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2920.239379][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2920.239379][   T73]      ipv6_find_idev+0x102/0x170
[ 2920.239379][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2920.239379][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2920.239379][   T73]      netlink_rcv_skb+0x130/0x360
[ 2920.239379][   T73]      netlink_unicast+0x449/0x710
[ 2920.239379][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2920.239379][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2920.239379][   T73]      ___sys_sendmsg+0xee/0x170
[ 2920.239379][   T73]      __sys_sendmsg+0xcd/0x170
[ 2920.239379][   T73]      do_syscall_64+0xc6/0x1e0
[ 2920.239379][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2920.239379][   T73] 
[ 2920.241079][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2920.241356][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2920.241356][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2920.241356][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2920.241356][   T73]      fib6_nh_init+0xa22/0x1580
[ 2920.241356][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2920.241356][   T73]      ip6_route_add+0x1c/0x140
[ 2920.241356][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2920.241356][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2920.241356][   T73]      netlink_rcv_skb+0x130/0x360
[ 2920.241356][   T73]      netlink_unicast+0x449/0x710
[ 2920.241356][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2920.241356][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2920.241356][   T73]      ___sys_sendmsg+0xee/0x170
[ 2920.241356][   T73]      __sys_sendmsg+0xcd/0x170
[ 2920.241356][   T73]      do_syscall_64+0xc6/0x1e0
[ 2920.241356][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2920.241356][   T73] 
[ 2920.243429][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2920.243429][   T73]      dst_init+0x84/0x4a0
[ 2920.243429][   T73]      dst_alloc+0x97/0x150
[ 2920.243429][   T73]      ip6_dst_alloc+0x23/0x90
[ 2920.243429][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2920.243429][   T73]      ip6_pol_route+0x56f/0x840
[ 2920.243429][   T73]      fib6_rule_lookup+0x456/0x630
[ 2920.243429][   T73]      ip6_route_input+0x59c/0xa50
[ 2920.243429][   T73]      ipv6_rcv+0x397/0x810
[ 2920.243429][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2920.243429][   T73]      process_backlog+0x101/0x620
[ 2920.243429][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2920.243429][   T73]      net_rx_action+0x495/0xbe0
[ 2920.243429][   T73]      __do_softirq+0x1b5/0x7f6
[ 2920.243429][   T73] 
[ 2920.245252][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2920.245252][   T73]      netdev_get_by_index+0x5e/0x80
[ 2920.245252][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2920.245252][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2920.245252][   T73]      ip6_route_add+0x1c/0x140
[ 2920.245252][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2920.245252][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2920.245252][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2920.245252][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2920.245252][   T73]      netlink_rcv_skb+0x130/0x360
[ 2920.245252][   T73]      netlink_unicast+0x449/0x710
[ 2920.245252][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2920.245252][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2920.245252][   T73]      ___sys_sendmsg+0xee/0x170
[ 2920.245252][   T73]      __sys_sendmsg+0xcd/0x170
[ 2920.245252][   T73]      do_syscall_64+0xc6/0x1e0
[ 2920.245252][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2920.245252][   T73] 
[ 2920.247519][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2920.247519][   T73]      netdev_get_by_index+0x5e/0x80
[ 2920.247519][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2920.247519][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2920.247519][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2920.247519][   T73]      ipv6_add_addr+0x411/0x2000
[ 2920.247519][   T73]      inet6_addr_add+0x30e/0xa40
[ 2920.247519][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2920.247519][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2920.247519][   T73]      netlink_rcv_skb+0x130/0x360
[ 2920.247519][   T73]      netlink_unicast+0x449/0x710
[ 2920.247519][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2920.247519][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2920.247519][   T73]      ___sys_sendmsg+0xee/0x170
[ 2920.247519][   T73]      __sys_sendmsg+0xcd/0x170
[ 2920.247519][   T73]      do_syscall_64+0xc6/0x1e0
[ 2920.247519][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2920.247519][   T73] 
[ 2920.249829][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2920.249829][   T73]      netdev_get_by_index+0x5e/0x80
[ 2920.249829][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2920.249829][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2920.249829][   T73]      ip6_route_add+0x1c/0x140
[ 2920.249829][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2920.249829][   T73]      addrconf_add_dev+0xe2/0x170
[ 2920.249829][   T73]      inet6_addr_add+0x12f/0xa40
[ 2920.249829][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2920.249829][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2920.249829][   T73]      netlink_rcv_skb+0x130/0x360
[ 2920.249829][   T73]      netlink_unicast+0x449/0x710
[ 2920.249829][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2920.249829][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2920.249829][   T73]      ___sys_sendmsg+0xee/0x170
[ 2920.249829][   T73]      __sys_sendmsg+0xcd/0x170
[ 2920.249829][   T73]      do_syscall_64+0xc6/0x1e0
[ 2920.249829][   T73] 
[ 2920.251990][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2920.251990][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2920.251990][   T73]      ipv6_find_idev+0x102/0x170
[ 2920.251990][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2920.251990][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2920.251990][   T73]      netlink_rcv_skb+0x130/0x360
[ 2920.251990][   T73]      netlink_unicast+0x449/0x710
[ 2920.251990][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2920.251990][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2920.251990][   T73]      ___sys_sendmsg+0xee/0x170
[ 2920.251990][   T73]      __sys_sendmsg+0xcd/0x170
[ 2920.251990][   T73]      do_syscall_64+0xc6/0x1e0
[ 2920.251990][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2920.251990][   T73] 
[ 2920.253744][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2920.253744][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2920.253744][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2920.253744][   T73]      ipv6_find_idev+0x102/0x170
[ 2920.253744][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2920.253744][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2920.253744][   T73]      netlink_rcv_skb+0x130/0x360
[ 2920.253744][   T73]      netlink_unicast+0x449/0x710
[ 2920.253744][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2920.253744][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2920.253744][   T73]      ___sys_sendmsg+0xee/0x170
[ 2920.253744][   T73]      __sys_sendmsg+0xcd/0x170
[ 2920.253744][   T73]      do_syscall_64+0xc6/0x1e0
[ 2920.253744][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2920.253744][   T73] 
[ 2920.255691][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2920.255968][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2920.255968][   T73]      netdev_get_by_index+0x5e/0x80
[ 2920.255968][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2920.255968][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2920.255968][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2920.255968][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2920.255968][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2920.255968][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2920.255968][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2920.255968][   T73]      addrconf_dad_begin+0x310/0x670
[ 2920.255968][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2920.255968][   T73]      process_one_work+0x84d/0x18a0
[ 2920.255968][   T73]      worker_thread+0x587/0xd30
[ 2920.255968][   T73]      kthread+0x28a/0x350
[ 2920.255968][   T73]      ret_from_fork+0x31/0x70
[ 2920.255968][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2920.255968][   T73] 
[ 2920.258191][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2920.258191][   T73]      netdev_get_by_index+0x5e/0x80
[ 2920.258191][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2920.258191][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2920.258191][   T73]      ip6_route_add+0x1c/0x140
[ 2920.258191][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2920.258191][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2920.258191][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2920.258191][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2920.258191][   T73]      netlink_rcv_skb+0x130/0x360
[ 2920.258191][   T73]      netlink_unicast+0x449/0x710
[ 2920.258191][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2920.258191][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2920.258191][   T73]      ___sys_sendmsg+0xee/0x170
[ 2920.258191][   T73]      __sys_sendmsg+0xcd/0x170
[ 2920.258191][   T73]      do_syscall_64+0xc6/0x1e0
[ 2920.258191][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2920.258191][   T73] 
[ 2920.260451][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2920.260451][   T73]      netdev_get_by_index+0x5e/0x80
[ 2920.260451][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2920.260451][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2920.260451][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2920.260451][   T73]      ipv6_add_addr+0x411/0x2000
[ 2920.260451][   T73]      inet6_addr_add+0x30e/0xa40
[ 2920.260451][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2920.260451][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2920.260451][   T73]      netlink_rcv_skb+0x130/0x360
[ 2920.260451][   T73]      netlink_unicast+0x449/0x710
[ 2920.260451][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2920.260451][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2920.260451][   T73]      ___sys_sendmsg+0xee/0x170
[ 2920.260451][   T73]      __sys_sendmsg+0xcd/0x170
[ 2920.260451][   T73]      do_syscall_64+0xc6/0x1e0
[ 2920.260451][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2920.260451][   T73] 
[ 2920.262645][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2920.262645][   T73]      netdev_get_by_index+0x5e/0x80
[ 2920.262645][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2920.262645][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2920.262645][   T73]      ip6_route_add+0x1c/0x140
[ 2920.262645][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2920.262645][   T73]      addrconf_add_dev+0xe2/0x170
[ 2920.262645][   T73]      inet6_addr_add+0x12f/0xa40
[ 2920.262645][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2920.262645][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2920.262645][   T73]      netlink_rcv_skb+0x130/0x360
[ 2920.262645][   T73]      netlink_unicast+0x449/0x710
[ 2920.262645][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2920.262645][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2920.262645][   T73]      ___sys_sendmsg+0xee/0x170
[ 2920.262645][   T73]      __sys_sendmsg+0xcd/0x170
[ 2920.262645][   T73]      do_syscall_64+0xc6/0x1e0
[ 2920.262645][   T73] 
[ 2920.264875][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2920.264875][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2920.264875][   T73]      ipv6_find_idev+0x102/0x170
[ 2920.264875][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2920.264875][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2920.264875][   T73]      netlink_rcv_skb+0x130/0x360
[ 2920.264875][   T73]      netlink_unicast+0x449/0x710
[ 2920.264875][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2920.264875][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2920.264875][   T73]      ___sys_sendmsg+0xee/0x170
[ 2920.264875][   T73]      __sys_sendmsg+0xcd/0x170
[ 2920.264875][   T73]      do_syscall_64+0xc6/0x1e0
[ 2920.264875][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2920.264875][   T73] 
[ 2920.266601][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2920.266601][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2920.266601][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2920.266601][   T73]      ipv6_find_idev+0x102/0x170
[ 2920.266601][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2920.266601][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2920.266601][   T73]      netlink_rcv_skb+0x130/0x360
[ 2920.266601][   T73]      netlink_unicast+0x449/0x710
[ 2920.266601][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2920.266601][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2920.266601][   T73]      ___sys_sendmsg+0xee/0x170
[ 2920.266601][   T73]      __sys_sendmsg+0xcd/0x170
[ 2920.266601][   T73]      do_syscall_64+0xc6/0x1e0
[ 2920.266601][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2920.266601][   T73] 
[ 2930.335832][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2930.336327][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2930.336327][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2930.336327][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2930.336327][   T73]      fib6_nh_init+0xa22/0x1580
[ 2930.336327][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2930.336327][   T73]      ip6_route_add+0x1c/0x140
[ 2930.336327][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2930.336327][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2930.336327][   T73]      netlink_rcv_skb+0x130/0x360
[ 2930.336327][   T73]      netlink_unicast+0x449/0x710
[ 2930.336327][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2930.336327][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2930.336327][   T73]      ___sys_sendmsg+0xee/0x170
[ 2930.336327][   T73]      __sys_sendmsg+0xcd/0x170
[ 2930.336327][   T73]      do_syscall_64+0xc6/0x1e0
[ 2930.336327][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2930.336327][   T73] 
[ 2930.338487][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2930.338487][   T73]      dst_init+0x84/0x4a0
[ 2930.338487][   T73]      dst_alloc+0x97/0x150
[ 2930.338487][   T73]      ip6_dst_alloc+0x23/0x90
[ 2930.338487][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2930.338487][   T73]      ip6_pol_route+0x56f/0x840
[ 2930.338487][   T73]      fib6_rule_lookup+0x456/0x630
[ 2930.338487][   T73]      ip6_route_input+0x59c/0xa50
[ 2930.338487][   T73]      ipv6_rcv+0x397/0x810
[ 2930.338487][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2930.338487][   T73]      process_backlog+0x101/0x620
[ 2930.338487][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2930.338487][   T73]      net_rx_action+0x495/0xbe0
[ 2930.338487][   T73]      __do_softirq+0x1b5/0x7f6
[ 2930.338487][   T73] 
[ 2930.340339][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2930.340339][   T73]      netdev_get_by_index+0x5e/0x80
[ 2930.340339][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2930.340339][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2930.340339][   T73]      ip6_route_add+0x1c/0x140
[ 2930.340339][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2930.340339][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2930.340339][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2930.340339][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2930.340339][   T73]      netlink_rcv_skb+0x130/0x360
[ 2930.340339][   T73]      netlink_unicast+0x449/0x710
[ 2930.340339][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2930.340339][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2930.340339][   T73]      ___sys_sendmsg+0xee/0x170
[ 2930.340339][   T73]      __sys_sendmsg+0xcd/0x170
[ 2930.340339][   T73]      do_syscall_64+0xc6/0x1e0
[ 2930.340339][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2930.340339][   T73] 
[ 2930.342603][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2930.342603][   T73]      netdev_get_by_index+0x5e/0x80
[ 2930.342603][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2930.342603][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2930.342603][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2930.342603][   T73]      ipv6_add_addr+0x411/0x2000
[ 2930.342603][   T73]      inet6_addr_add+0x30e/0xa40
[ 2930.342603][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2930.342603][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2930.342603][   T73]      netlink_rcv_skb+0x130/0x360
[ 2930.342603][   T73]      netlink_unicast+0x449/0x710
[ 2930.342603][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2930.342603][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2930.342603][   T73]      ___sys_sendmsg+0xee/0x170
[ 2930.342603][   T73]      __sys_sendmsg+0xcd/0x170
[ 2930.342603][   T73]      do_syscall_64+0xc6/0x1e0
[ 2930.342603][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2930.342603][   T73] 
[ 2930.344829][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2930.344829][   T73]      netdev_get_by_index+0x5e/0x80
[ 2930.344829][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2930.344829][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2930.344829][   T73]      ip6_route_add+0x1c/0x140
[ 2930.344829][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2930.344829][   T73]      addrconf_add_dev+0xe2/0x170
[ 2930.344829][   T73]      inet6_addr_add+0x12f/0xa40
[ 2930.344829][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2930.344829][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2930.344829][   T73]      netlink_rcv_skb+0x130/0x360
[ 2930.344829][   T73]      netlink_unicast+0x449/0x710
[ 2930.344829][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2930.344829][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2930.344829][   T73]      ___sys_sendmsg+0xee/0x170
[ 2930.344829][   T73]      __sys_sendmsg+0xcd/0x170
[ 2930.344829][   T73]      do_syscall_64+0xc6/0x1e0
[ 2930.344829][   T73] 
[ 2930.347046][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2930.347046][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2930.347046][   T73]      ipv6_find_idev+0x102/0x170
[ 2930.347046][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2930.347046][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2930.347046][   T73]      netlink_rcv_skb+0x130/0x360
[ 2930.347046][   T73]      netlink_unicast+0x449/0x710
[ 2930.347046][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2930.347046][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2930.347046][   T73]      ___sys_sendmsg+0xee/0x170
[ 2930.347046][   T73]      __sys_sendmsg+0xcd/0x170
[ 2930.347046][   T73]      do_syscall_64+0xc6/0x1e0
[ 2930.347046][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2930.347046][   T73] 
[ 2930.348777][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2930.348777][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2930.348777][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2930.348777][   T73]      ipv6_find_idev+0x102/0x170
[ 2930.348777][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2930.348777][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2930.348777][   T73]      netlink_rcv_skb+0x130/0x360
[ 2930.348777][   T73]      netlink_unicast+0x449/0x710
[ 2930.348777][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2930.348777][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2930.348777][   T73]      ___sys_sendmsg+0xee/0x170
[ 2930.348777][   T73]      __sys_sendmsg+0xcd/0x170
[ 2930.348777][   T73]      do_syscall_64+0xc6/0x1e0
[ 2930.348777][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2930.348777][   T73] 
[ 2930.350712][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2930.351032][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2930.351032][   T73]      netdev_get_by_index+0x5e/0x80
[ 2930.351032][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2930.351032][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2930.351032][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2930.351032][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2930.351032][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2930.351032][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2930.351032][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2930.351032][   T73]      addrconf_dad_begin+0x310/0x670
[ 2930.351032][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2930.351032][   T73]      process_one_work+0x84d/0x18a0
[ 2930.351032][   T73]      worker_thread+0x587/0xd30
[ 2930.351032][   T73]      kthread+0x28a/0x350
[ 2930.351032][   T73]      ret_from_fork+0x31/0x70
[ 2930.351032][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2930.351032][   T73] 
[ 2930.353182][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2930.353182][   T73]      netdev_get_by_index+0x5e/0x80
[ 2930.353182][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2930.353182][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2930.353182][   T73]      ip6_route_add+0x1c/0x140
[ 2930.353182][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2930.353182][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2930.353182][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2930.353182][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2930.353182][   T73]      netlink_rcv_skb+0x130/0x360
[ 2930.353182][   T73]      netlink_unicast+0x449/0x710
[ 2930.353182][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2930.353182][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2930.353182][   T73]      ___sys_sendmsg+0xee/0x170
[ 2930.353182][   T73]      __sys_sendmsg+0xcd/0x170
[ 2930.353182][   T73]      do_syscall_64+0xc6/0x1e0
[ 2930.353182][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2930.353182][   T73] 
[ 2930.355437][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2930.355437][   T73]      netdev_get_by_index+0x5e/0x80
[ 2930.355437][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2930.355437][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2930.355437][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2930.355437][   T73]      ipv6_add_addr+0x411/0x2000
[ 2930.355437][   T73]      inet6_addr_add+0x30e/0xa40
[ 2930.355437][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2930.355437][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2930.355437][   T73]      netlink_rcv_skb+0x130/0x360
[ 2930.355437][   T73]      netlink_unicast+0x449/0x710
[ 2930.355437][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2930.355437][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2930.355437][   T73]      ___sys_sendmsg+0xee/0x170
[ 2930.355437][   T73]      __sys_sendmsg+0xcd/0x170
[ 2930.355437][   T73]      do_syscall_64+0xc6/0x1e0
[ 2930.355437][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2930.355437][   T73] 
[ 2930.357670][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2930.357670][   T73]      netdev_get_by_index+0x5e/0x80
[ 2930.357670][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2930.357670][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2930.357670][   T73]      ip6_route_add+0x1c/0x140
[ 2930.357670][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2930.357670][   T73]      addrconf_add_dev+0xe2/0x170
[ 2930.357670][   T73]      inet6_addr_add+0x12f/0xa40
[ 2930.357670][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2930.357670][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2930.357670][   T73]      netlink_rcv_skb+0x130/0x360
[ 2930.357670][   T73]      netlink_unicast+0x449/0x710
[ 2930.357670][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2930.357670][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2930.357670][   T73]      ___sys_sendmsg+0xee/0x170
[ 2930.357670][   T73]      __sys_sendmsg+0xcd/0x170
[ 2930.357670][   T73]      do_syscall_64+0xc6/0x1e0
[ 2930.357670][   T73] 
[ 2930.359867][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2930.359867][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2930.359867][   T73]      ipv6_find_idev+0x102/0x170
[ 2930.359867][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2930.359867][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2930.359867][   T73]      netlink_rcv_skb+0x130/0x360
[ 2930.359867][   T73]      netlink_unicast+0x449/0x710
[ 2930.359867][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2930.359867][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2930.359867][   T73]      ___sys_sendmsg+0xee/0x170
[ 2930.359867][   T73]      __sys_sendmsg+0xcd/0x170
[ 2930.359867][   T73]      do_syscall_64+0xc6/0x1e0
[ 2930.359867][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2930.359867][   T73] 
[ 2930.361637][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2930.361637][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2930.361637][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2930.361637][   T73]      ipv6_find_idev+0x102/0x170
[ 2930.361637][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2930.361637][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2930.361637][   T73]      netlink_rcv_skb+0x130/0x360
[ 2930.361637][   T73]      netlink_unicast+0x449/0x710
[ 2930.361637][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2930.361637][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2930.361637][   T73]      ___sys_sendmsg+0xee/0x170
[ 2930.361637][   T73]      __sys_sendmsg+0xcd/0x170
[ 2930.361637][   T73]      do_syscall_64+0xc6/0x1e0
[ 2930.361637][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2930.361637][   T73] 
[ 2930.363563][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2930.363882][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2930.363882][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2930.363882][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2930.363882][   T73]      fib6_nh_init+0xa22/0x1580
[ 2930.363882][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2930.363882][   T73]      ip6_route_add+0x1c/0x140
[ 2930.363882][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2930.363882][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2930.363882][   T73]      netlink_rcv_skb+0x130/0x360
[ 2930.363882][   T73]      netlink_unicast+0x449/0x710
[ 2930.363882][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2930.363882][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2930.363882][   T73]      ___sys_sendmsg+0xee/0x170
[ 2930.363882][   T73]      __sys_sendmsg+0xcd/0x170
[ 2930.363882][   T73]      do_syscall_64+0xc6/0x1e0
[ 2930.363882][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2930.363882][   T73] 
[ 2930.366176][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2930.366176][   T73]      dst_init+0x84/0x4a0
[ 2930.366176][   T73]      dst_alloc+0x97/0x150
[ 2930.366176][   T73]      ip6_dst_alloc+0x23/0x90
[ 2930.366176][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2930.366176][   T73]      ip6_pol_route+0x56f/0x840
[ 2930.366176][   T73]      fib6_rule_lookup+0x456/0x630
[ 2930.366176][   T73]      ip6_route_input+0x59c/0xa50
[ 2930.366176][   T73]      ipv6_rcv+0x397/0x810
[ 2930.366176][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2930.366176][   T73]      process_backlog+0x101/0x620
[ 2930.366176][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2930.366176][   T73]      net_rx_action+0x495/0xbe0
[ 2930.366176][   T73]      __do_softirq+0x1b5/0x7f6
[ 2930.366176][   T73] 
[ 2930.368245][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2930.368245][   T73]      netdev_get_by_index+0x5e/0x80
[ 2930.368245][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2930.368245][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2930.368245][   T73]      ip6_route_add+0x1c/0x140
[ 2930.368245][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2930.368245][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2930.368245][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2930.368245][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2930.368245][   T73]      netlink_rcv_skb+0x130/0x360
[ 2930.368245][   T73]      netlink_unicast+0x449/0x710
[ 2930.368245][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2930.368245][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2930.368245][   T73]      ___sys_sendmsg+0xee/0x170
[ 2930.368245][   T73]      __sys_sendmsg+0xcd/0x170
[ 2930.368245][   T73]      do_syscall_64+0xc6/0x1e0
[ 2930.368245][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2930.368245][   T73] 
[ 2930.370738][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2930.370738][   T73]      netdev_get_by_index+0x5e/0x80
[ 2930.370738][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2930.370738][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2930.370738][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2930.370738][   T73]      ipv6_add_addr+0x411/0x2000
[ 2930.370738][   T73]      inet6_addr_add+0x30e/0xa40
[ 2930.370738][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2930.370738][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2930.370738][   T73]      netlink_rcv_skb+0x130/0x360
[ 2930.370738][   T73]      netlink_unicast+0x449/0x710
[ 2930.370738][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2930.370738][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2930.370738][   T73]      ___sys_sendmsg+0xee/0x170
[ 2930.370738][   T73]      __sys_sendmsg+0xcd/0x170
[ 2930.370738][   T73]      do_syscall_64+0xc6/0x1e0
[ 2930.370738][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2930.370738][   T73] 
[ 2930.373190][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2930.373190][   T73]      netdev_get_by_index+0x5e/0x80
[ 2930.373190][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2930.373190][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2930.373190][   T73]      ip6_route_add+0x1c/0x140
[ 2930.373190][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2930.373190][   T73]      addrconf_add_dev+0xe2/0x170
[ 2930.373190][   T73]      inet6_addr_add+0x12f/0xa40
[ 2930.373190][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2930.373190][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2930.373190][   T73]      netlink_rcv_skb+0x130/0x360
[ 2930.373190][   T73]      netlink_unicast+0x449/0x710
[ 2930.373190][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2930.373190][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2930.373190][   T73]      ___sys_sendmsg+0xee/0x170
[ 2930.373190][   T73]      __sys_sendmsg+0xcd/0x170
[ 2930.373190][   T73]      do_syscall_64+0xc6/0x1e0
[ 2930.373190][   T73] 
[ 2930.375593][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2930.375593][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2930.375593][   T73]      ipv6_find_idev+0x102/0x170
[ 2930.375593][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2930.375593][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2930.375593][   T73]      netlink_rcv_skb+0x130/0x360
[ 2930.375593][   T73]      netlink_unicast+0x449/0x710
[ 2930.375593][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2930.375593][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2930.375593][   T73]      ___sys_sendmsg+0xee/0x170
[ 2930.375593][   T73]      __sys_sendmsg+0xcd/0x170
[ 2930.375593][   T73]      do_syscall_64+0xc6/0x1e0
[ 2930.375593][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2930.375593][   T73] 
[ 2930.377564][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2930.377564][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2930.377564][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2930.377564][   T73]      ipv6_find_idev+0x102/0x170
[ 2930.377564][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2930.377564][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2930.377564][   T73]      netlink_rcv_skb+0x130/0x360
[ 2930.377564][   T73]      netlink_unicast+0x449/0x710
[ 2930.377564][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2930.377564][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2930.377564][   T73]      ___sys_sendmsg+0xee/0x170
[ 2930.377564][   T73]      __sys_sendmsg+0xcd/0x170
[ 2930.377564][   T73]      do_syscall_64+0xc6/0x1e0
[ 2930.377564][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2930.377564][   T73] 
[ 2930.379663][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2930.380028][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2930.380028][   T73]      netdev_get_by_index+0x5e/0x80
[ 2930.380028][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2930.380028][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2930.380028][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2930.380028][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2930.380028][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2930.380028][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2930.380028][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2930.380028][   T73]      addrconf_dad_begin+0x310/0x670
[ 2930.380028][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2930.380028][   T73]      process_one_work+0x84d/0x18a0
[ 2930.380028][   T73]      worker_thread+0x587/0xd30
[ 2930.380028][   T73]      kthread+0x28a/0x350
[ 2930.380028][   T73]      ret_from_fork+0x31/0x70
[ 2930.380028][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2930.380028][   T73] 
[ 2930.382359][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2930.382359][   T73]      netdev_get_by_index+0x5e/0x80
[ 2930.382359][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2930.382359][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2930.382359][   T73]      ip6_route_add+0x1c/0x140
[ 2930.382359][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2930.382359][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2930.382359][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2930.382359][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2930.382359][   T73]      netlink_rcv_skb+0x130/0x360
[ 2930.382359][   T73]      netlink_unicast+0x449/0x710
[ 2930.382359][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2930.382359][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2930.382359][   T73]      ___sys_sendmsg+0xee/0x170
[ 2930.382359][   T73]      __sys_sendmsg+0xcd/0x170
[ 2930.382359][   T73]      do_syscall_64+0xc6/0x1e0
[ 2930.382359][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2930.382359][   T73] 
[ 2930.384856][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2930.384856][   T73]      netdev_get_by_index+0x5e/0x80
[ 2930.384856][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2930.384856][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2930.384856][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2930.384856][   T73]      ipv6_add_addr+0x411/0x2000
[ 2930.384856][   T73]      inet6_addr_add+0x30e/0xa40
[ 2930.384856][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2930.384856][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2930.384856][   T73]      netlink_rcv_skb+0x130/0x360
[ 2930.384856][   T73]      netlink_unicast+0x449/0x710
[ 2930.384856][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2930.384856][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2930.384856][   T73]      ___sys_sendmsg+0xee/0x170
[ 2930.384856][   T73]      __sys_sendmsg+0xcd/0x170
[ 2930.384856][   T73]      do_syscall_64+0xc6/0x1e0
[ 2930.384856][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2930.384856][   T73] 
[ 2930.387346][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2930.387346][   T73]      netdev_get_by_index+0x5e/0x80
[ 2930.387346][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2930.387346][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2930.387346][   T73]      ip6_route_add+0x1c/0x140
[ 2930.387346][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2930.387346][   T73]      addrconf_add_dev+0xe2/0x170
[ 2930.387346][   T73]      inet6_addr_add+0x12f/0xa40
[ 2930.387346][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2930.387346][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2930.387346][   T73]      netlink_rcv_skb+0x130/0x360
[ 2930.387346][   T73]      netlink_unicast+0x449/0x710
[ 2930.387346][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2930.387346][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2930.387346][   T73]      ___sys_sendmsg+0xee/0x170
[ 2930.387346][   T73]      __sys_sendmsg+0xcd/0x170
[ 2930.387346][   T73]      do_syscall_64+0xc6/0x1e0
[ 2930.387346][   T73] 
[ 2930.389854][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2930.389854][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2930.389854][   T73]      ipv6_find_idev+0x102/0x170
[ 2930.389854][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2930.389854][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2930.389854][   T73]      netlink_rcv_skb+0x130/0x360
[ 2930.389854][   T73]      netlink_unicast+0x449/0x710
[ 2930.389854][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2930.389854][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2930.389854][   T73]      ___sys_sendmsg+0xee/0x170
[ 2930.389854][   T73]      __sys_sendmsg+0xcd/0x170
[ 2930.389854][   T73]      do_syscall_64+0xc6/0x1e0
[ 2930.389854][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2930.389854][   T73] 
[ 2930.391769][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2930.391769][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2930.391769][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2930.391769][   T73]      ipv6_find_idev+0x102/0x170
[ 2930.391769][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2930.391769][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2930.391769][   T73]      netlink_rcv_skb+0x130/0x360
[ 2930.391769][   T73]      netlink_unicast+0x449/0x710
[ 2930.391769][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2930.391769][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2930.391769][   T73]      ___sys_sendmsg+0xee/0x170
[ 2930.391769][   T73]      __sys_sendmsg+0xcd/0x170
[ 2930.391769][   T73]      do_syscall_64+0xc6/0x1e0
[ 2930.391769][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2930.391769][   T73] 
[ 2940.631742][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2940.632236][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2940.632236][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2940.632236][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2940.632236][   T73]      fib6_nh_init+0xa22/0x1580
[ 2940.632236][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2940.632236][   T73]      ip6_route_add+0x1c/0x140
[ 2940.632236][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2940.632236][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2940.632236][   T73]      netlink_rcv_skb+0x130/0x360
[ 2940.632236][   T73]      netlink_unicast+0x449/0x710
[ 2940.632236][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2940.632236][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2940.632236][   T73]      ___sys_sendmsg+0xee/0x170
[ 2940.632236][   T73]      __sys_sendmsg+0xcd/0x170
[ 2940.632236][   T73]      do_syscall_64+0xc6/0x1e0
[ 2940.632236][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2940.632236][   T73] 
[ 2940.634356][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2940.634356][   T73]      dst_init+0x84/0x4a0
[ 2940.634356][   T73]      dst_alloc+0x97/0x150
[ 2940.634356][   T73]      ip6_dst_alloc+0x23/0x90
[ 2940.634356][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2940.634356][   T73]      ip6_pol_route+0x56f/0x840
[ 2940.634356][   T73]      fib6_rule_lookup+0x456/0x630
[ 2940.634356][   T73]      ip6_route_input+0x59c/0xa50
[ 2940.634356][   T73]      ipv6_rcv+0x397/0x810
[ 2940.634356][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2940.634356][   T73]      process_backlog+0x101/0x620
[ 2940.634356][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2940.634356][   T73]      net_rx_action+0x495/0xbe0
[ 2940.634356][   T73]      __do_softirq+0x1b5/0x7f6
[ 2940.634356][   T73] 
[ 2940.636208][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2940.636208][   T73]      netdev_get_by_index+0x5e/0x80
[ 2940.636208][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2940.636208][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2940.636208][   T73]      ip6_route_add+0x1c/0x140
[ 2940.636208][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2940.636208][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2940.636208][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2940.636208][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2940.636208][   T73]      netlink_rcv_skb+0x130/0x360
[ 2940.636208][   T73]      netlink_unicast+0x449/0x710
[ 2940.636208][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2940.636208][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2940.636208][   T73]      ___sys_sendmsg+0xee/0x170
[ 2940.636208][   T73]      __sys_sendmsg+0xcd/0x170
[ 2940.636208][   T73]      do_syscall_64+0xc6/0x1e0
[ 2940.636208][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2940.636208][   T73] 
[ 2940.638445][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2940.638445][   T73]      netdev_get_by_index+0x5e/0x80
[ 2940.638445][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2940.638445][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2940.638445][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2940.638445][   T73]      ipv6_add_addr+0x411/0x2000
[ 2940.638445][   T73]      inet6_addr_add+0x30e/0xa40
[ 2940.638445][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2940.638445][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2940.638445][   T73]      netlink_rcv_skb+0x130/0x360
[ 2940.638445][   T73]      netlink_unicast+0x449/0x710
[ 2940.638445][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2940.638445][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2940.638445][   T73]      ___sys_sendmsg+0xee/0x170
[ 2940.638445][   T73]      __sys_sendmsg+0xcd/0x170
[ 2940.638445][   T73]      do_syscall_64+0xc6/0x1e0
[ 2940.638445][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2940.638445][   T73] 
[ 2940.640696][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2940.640696][   T73]      netdev_get_by_index+0x5e/0x80
[ 2940.640696][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2940.640696][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2940.640696][   T73]      ip6_route_add+0x1c/0x140
[ 2940.640696][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2940.640696][   T73]      addrconf_add_dev+0xe2/0x170
[ 2940.640696][   T73]      inet6_addr_add+0x12f/0xa40
[ 2940.640696][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2940.640696][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2940.640696][   T73]      netlink_rcv_skb+0x130/0x360
[ 2940.640696][   T73]      netlink_unicast+0x449/0x710
[ 2940.640696][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2940.640696][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2940.640696][   T73]      ___sys_sendmsg+0xee/0x170
[ 2940.640696][   T73]      __sys_sendmsg+0xcd/0x170
[ 2940.640696][   T73]      do_syscall_64+0xc6/0x1e0
[ 2940.640696][   T73] 
[ 2940.642916][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2940.642916][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2940.642916][   T73]      ipv6_find_idev+0x102/0x170
[ 2940.642916][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2940.642916][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2940.642916][   T73]      netlink_rcv_skb+0x130/0x360
[ 2940.642916][   T73]      netlink_unicast+0x449/0x710
[ 2940.642916][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2940.642916][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2940.642916][   T73]      ___sys_sendmsg+0xee/0x170
[ 2940.642916][   T73]      __sys_sendmsg+0xcd/0x170
[ 2940.642916][   T73]      do_syscall_64+0xc6/0x1e0
[ 2940.642916][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2940.642916][   T73] 
[ 2940.644640][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2940.644640][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2940.644640][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2940.644640][   T73]      ipv6_find_idev+0x102/0x170
[ 2940.644640][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2940.644640][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2940.644640][   T73]      netlink_rcv_skb+0x130/0x360
[ 2940.644640][   T73]      netlink_unicast+0x449/0x710
[ 2940.644640][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2940.644640][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2940.644640][   T73]      ___sys_sendmsg+0xee/0x170
[ 2940.644640][   T73]      __sys_sendmsg+0xcd/0x170
[ 2940.644640][   T73]      do_syscall_64+0xc6/0x1e0
[ 2940.644640][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2940.644640][   T73] 
[ 2940.646542][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2940.646858][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2940.646858][   T73]      netdev_get_by_index+0x5e/0x80
[ 2940.646858][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2940.646858][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2940.646858][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2940.646858][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2940.646858][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2940.646858][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2940.646858][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2940.646858][   T73]      addrconf_dad_begin+0x310/0x670
[ 2940.646858][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2940.646858][   T73]      process_one_work+0x84d/0x18a0
[ 2940.646858][   T73]      worker_thread+0x587/0xd30
[ 2940.646858][   T73]      kthread+0x28a/0x350
[ 2940.646858][   T73]      ret_from_fork+0x31/0x70
[ 2940.646858][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2940.646858][   T73] 
[ 2940.649009][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2940.649009][   T73]      netdev_get_by_index+0x5e/0x80
[ 2940.649009][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2940.649009][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2940.649009][   T73]      ip6_route_add+0x1c/0x140
[ 2940.649009][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2940.649009][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2940.649009][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2940.649009][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2940.649009][   T73]      netlink_rcv_skb+0x130/0x360
[ 2940.649009][   T73]      netlink_unicast+0x449/0x710
[ 2940.649009][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2940.649009][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2940.649009][   T73]      ___sys_sendmsg+0xee/0x170
[ 2940.649009][   T73]      __sys_sendmsg+0xcd/0x170
[ 2940.649009][   T73]      do_syscall_64+0xc6/0x1e0
[ 2940.649009][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2940.649009][   T73] 
[ 2940.651358][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2940.651358][   T73]      netdev_get_by_index+0x5e/0x80
[ 2940.651358][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2940.651358][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2940.651358][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2940.651358][   T73]      ipv6_add_addr+0x411/0x2000
[ 2940.651358][   T73]      inet6_addr_add+0x30e/0xa40
[ 2940.651358][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2940.651358][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2940.651358][   T73]      netlink_rcv_skb+0x130/0x360
[ 2940.651358][   T73]      netlink_unicast+0x449/0x710
[ 2940.651358][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2940.651358][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2940.651358][   T73]      ___sys_sendmsg+0xee/0x170
[ 2940.651358][   T73]      __sys_sendmsg+0xcd/0x170
[ 2940.651358][   T73]      do_syscall_64+0xc6/0x1e0
[ 2940.651358][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2940.651358][   T73] 
[ 2940.653593][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2940.653593][   T73]      netdev_get_by_index+0x5e/0x80
[ 2940.653593][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2940.653593][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2940.653593][   T73]      ip6_route_add+0x1c/0x140
[ 2940.653593][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2940.653593][   T73]      addrconf_add_dev+0xe2/0x170
[ 2940.653593][   T73]      inet6_addr_add+0x12f/0xa40
[ 2940.653593][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2940.653593][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2940.653593][   T73]      netlink_rcv_skb+0x130/0x360
[ 2940.653593][   T73]      netlink_unicast+0x449/0x710
[ 2940.653593][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2940.653593][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2940.653593][   T73]      ___sys_sendmsg+0xee/0x170
[ 2940.653593][   T73]      __sys_sendmsg+0xcd/0x170
[ 2940.653593][   T73]      do_syscall_64+0xc6/0x1e0
[ 2940.653593][   T73] 
[ 2940.655784][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2940.655784][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2940.655784][   T73]      ipv6_find_idev+0x102/0x170
[ 2940.655784][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2940.655784][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2940.655784][   T73]      netlink_rcv_skb+0x130/0x360
[ 2940.655784][   T73]      netlink_unicast+0x449/0x710
[ 2940.655784][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2940.655784][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2940.655784][   T73]      ___sys_sendmsg+0xee/0x170
[ 2940.655784][   T73]      __sys_sendmsg+0xcd/0x170
[ 2940.655784][   T73]      do_syscall_64+0xc6/0x1e0
[ 2940.655784][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2940.655784][   T73] 
[ 2940.657519][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2940.657519][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2940.657519][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2940.657519][   T73]      ipv6_find_idev+0x102/0x170
[ 2940.657519][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2940.657519][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2940.657519][   T73]      netlink_rcv_skb+0x130/0x360
[ 2940.657519][   T73]      netlink_unicast+0x449/0x710
[ 2940.657519][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2940.657519][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2940.657519][   T73]      ___sys_sendmsg+0xee/0x170
[ 2940.657519][   T73]      __sys_sendmsg+0xcd/0x170
[ 2940.657519][   T73]      do_syscall_64+0xc6/0x1e0
[ 2940.657519][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2940.657519][   T73] 
[ 2940.659422][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2940.659719][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2940.659719][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2940.659719][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2940.659719][   T73]      fib6_nh_init+0xa22/0x1580
[ 2940.659719][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2940.659719][   T73]      ip6_route_add+0x1c/0x140
[ 2940.659719][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2940.659719][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2940.659719][   T73]      netlink_rcv_skb+0x130/0x360
[ 2940.659719][   T73]      netlink_unicast+0x449/0x710
[ 2940.659719][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2940.659719][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2940.659719][   T73]      ___sys_sendmsg+0xee/0x170
[ 2940.659719][   T73]      __sys_sendmsg+0xcd/0x170
[ 2940.659719][   T73]      do_syscall_64+0xc6/0x1e0
[ 2940.659719][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2940.659719][   T73] 
[ 2940.662012][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2940.662012][   T73]      dst_init+0x84/0x4a0
[ 2940.662012][   T73]      dst_alloc+0x97/0x150
[ 2940.662012][   T73]      ip6_dst_alloc+0x23/0x90
[ 2940.662012][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2940.662012][   T73]      ip6_pol_route+0x56f/0x840
[ 2940.662012][   T73]      fib6_rule_lookup+0x456/0x630
[ 2940.662012][   T73]      ip6_route_input+0x59c/0xa50
[ 2940.662012][   T73]      ipv6_rcv+0x397/0x810
[ 2940.662012][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2940.662012][   T73]      process_backlog+0x101/0x620
[ 2940.662012][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2940.662012][   T73]      net_rx_action+0x495/0xbe0
[ 2940.662012][   T73]      __do_softirq+0x1b5/0x7f6
[ 2940.662012][   T73] 
[ 2940.664016][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2940.664016][   T73]      netdev_get_by_index+0x5e/0x80
[ 2940.664016][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2940.664016][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2940.664016][   T73]      ip6_route_add+0x1c/0x140
[ 2940.664016][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2940.664016][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2940.664016][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2940.664016][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2940.664016][   T73]      netlink_rcv_skb+0x130/0x360
[ 2940.664016][   T73]      netlink_unicast+0x449/0x710
[ 2940.664016][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2940.664016][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2940.664016][   T73]      ___sys_sendmsg+0xee/0x170
[ 2940.664016][   T73]      __sys_sendmsg+0xcd/0x170
[ 2940.664016][   T73]      do_syscall_64+0xc6/0x1e0
[ 2940.664016][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2940.664016][   T73] 
[ 2940.666505][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2940.666505][   T73]      netdev_get_by_index+0x5e/0x80
[ 2940.666505][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2940.666505][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2940.666505][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2940.666505][   T73]      ipv6_add_addr+0x411/0x2000
[ 2940.666505][   T73]      inet6_addr_add+0x30e/0xa40
[ 2940.666505][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2940.666505][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2940.666505][   T73]      netlink_rcv_skb+0x130/0x360
[ 2940.666505][   T73]      netlink_unicast+0x449/0x710
[ 2940.666505][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2940.666505][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2940.666505][   T73]      ___sys_sendmsg+0xee/0x170
[ 2940.666505][   T73]      __sys_sendmsg+0xcd/0x170
[ 2940.666505][   T73]      do_syscall_64+0xc6/0x1e0
[ 2940.666505][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2940.666505][   T73] 
[ 2940.669172][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2940.669172][   T73]      netdev_get_by_index+0x5e/0x80
[ 2940.669172][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2940.669172][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2940.669172][   T73]      ip6_route_add+0x1c/0x140
[ 2940.669172][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2940.669172][   T73]      addrconf_add_dev+0xe2/0x170
[ 2940.669172][   T73]      inet6_addr_add+0x12f/0xa40
[ 2940.669172][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2940.669172][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2940.669172][   T73]      netlink_rcv_skb+0x130/0x360
[ 2940.669172][   T73]      netlink_unicast+0x449/0x710
[ 2940.669172][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2940.669172][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2940.669172][   T73]      ___sys_sendmsg+0xee/0x170
[ 2940.669172][   T73]      __sys_sendmsg+0xcd/0x170
[ 2940.669172][   T73]      do_syscall_64+0xc6/0x1e0
[ 2940.669172][   T73] 
[ 2940.672359][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2940.672359][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2940.672359][   T73]      ipv6_find_idev+0x102/0x170
[ 2940.672359][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2940.672359][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2940.672359][   T73]      netlink_rcv_skb+0x130/0x360
[ 2940.672359][   T73]      netlink_unicast+0x449/0x710
[ 2940.672359][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2940.672359][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2940.672359][   T73]      ___sys_sendmsg+0xee/0x170
[ 2940.672359][   T73]      __sys_sendmsg+0xcd/0x170
[ 2940.672359][   T73]      do_syscall_64+0xc6/0x1e0
[ 2940.672359][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2940.672359][   T73] 
[ 2940.674412][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2940.674412][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2940.674412][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2940.674412][   T73]      ipv6_find_idev+0x102/0x170
[ 2940.674412][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2940.674412][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2940.674412][   T73]      netlink_rcv_skb+0x130/0x360
[ 2940.674412][   T73]      netlink_unicast+0x449/0x710
[ 2940.674412][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2940.674412][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2940.674412][   T73]      ___sys_sendmsg+0xee/0x170
[ 2940.674412][   T73]      __sys_sendmsg+0xcd/0x170
[ 2940.674412][   T73]      do_syscall_64+0xc6/0x1e0
[ 2940.674412][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2940.674412][   T73] 
[ 2940.676673][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2940.677029][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2940.677029][   T73]      netdev_get_by_index+0x5e/0x80
[ 2940.677029][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2940.677029][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2940.677029][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2940.677029][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2940.677029][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2940.677029][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2940.677029][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2940.677029][   T73]      addrconf_dad_begin+0x310/0x670
[ 2940.677029][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2940.677029][   T73]      process_one_work+0x84d/0x18a0
[ 2940.677029][   T73]      worker_thread+0x587/0xd30
[ 2940.677029][   T73]      kthread+0x28a/0x350
[ 2940.677029][   T73]      ret_from_fork+0x31/0x70
[ 2940.677029][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2940.677029][   T73] 
[ 2940.679362][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2940.679362][   T73]      netdev_get_by_index+0x5e/0x80
[ 2940.679362][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2940.679362][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2940.679362][   T73]      ip6_route_add+0x1c/0x140
[ 2940.679362][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2940.679362][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2940.679362][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2940.679362][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2940.679362][   T73]      netlink_rcv_skb+0x130/0x360
[ 2940.679362][   T73]      netlink_unicast+0x449/0x710
[ 2940.679362][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2940.679362][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2940.679362][   T73]      ___sys_sendmsg+0xee/0x170
[ 2940.679362][   T73]      __sys_sendmsg+0xcd/0x170
[ 2940.679362][   T73]      do_syscall_64+0xc6/0x1e0
[ 2940.679362][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2940.679362][   T73] 
[ 2940.681923][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2940.681923][   T73]      netdev_get_by_index+0x5e/0x80
[ 2940.681923][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2940.681923][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2940.681923][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2940.681923][   T73]      ipv6_add_addr+0x411/0x2000
[ 2940.681923][   T73]      inet6_addr_add+0x30e/0xa40
[ 2940.681923][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2940.681923][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2940.681923][   T73]      netlink_rcv_skb+0x130/0x360
[ 2940.681923][   T73]      netlink_unicast+0x449/0x710
[ 2940.681923][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2940.681923][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2940.681923][   T73]      ___sys_sendmsg+0xee/0x170
[ 2940.681923][   T73]      __sys_sendmsg+0xcd/0x170
[ 2940.681923][   T73]      do_syscall_64+0xc6/0x1e0
[ 2940.681923][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2940.681923][   T73] 
[ 2940.684427][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2940.684427][   T73]      netdev_get_by_index+0x5e/0x80
[ 2940.684427][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2940.684427][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2940.684427][   T73]      ip6_route_add+0x1c/0x140
[ 2940.684427][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2940.684427][   T73]      addrconf_add_dev+0xe2/0x170
[ 2940.684427][   T73]      inet6_addr_add+0x12f/0xa40
[ 2940.684427][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2940.684427][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2940.684427][   T73]      netlink_rcv_skb+0x130/0x360
[ 2940.684427][   T73]      netlink_unicast+0x449/0x710
[ 2940.684427][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2940.684427][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2940.684427][   T73]      ___sys_sendmsg+0xee/0x170
[ 2940.684427][   T73]      __sys_sendmsg+0xcd/0x170
[ 2940.684427][   T73]      do_syscall_64+0xc6/0x1e0
[ 2940.684427][   T73] 
[ 2940.686866][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2940.686866][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2940.686866][   T73]      ipv6_find_idev+0x102/0x170
[ 2940.686866][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2940.686866][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2940.686866][   T73]      netlink_rcv_skb+0x130/0x360
[ 2940.686866][   T73]      netlink_unicast+0x449/0x710
[ 2940.686866][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2940.686866][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2940.686866][   T73]      ___sys_sendmsg+0xee/0x170
[ 2940.686866][   T73]      __sys_sendmsg+0xcd/0x170
[ 2940.686866][   T73]      do_syscall_64+0xc6/0x1e0
[ 2940.686866][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2940.686866][   T73] 
[ 2940.688768][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2940.688768][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2940.688768][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2940.688768][   T73]      ipv6_find_idev+0x102/0x170
[ 2940.688768][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2940.688768][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2940.688768][   T73]      netlink_rcv_skb+0x130/0x360
[ 2940.688768][   T73]      netlink_unicast+0x449/0x710
[ 2940.688768][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2940.688768][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2940.688768][   T73]      ___sys_sendmsg+0xee/0x170
[ 2940.688768][   T73]      __sys_sendmsg+0xcd/0x170
[ 2940.688768][   T73]      do_syscall_64+0xc6/0x1e0
[ 2940.688768][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2940.688768][   T73] 
[ 2950.695796][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2950.696325][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2950.696325][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2950.696325][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2950.696325][   T73]      fib6_nh_init+0xa22/0x1580
[ 2950.696325][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2950.696325][   T73]      ip6_route_add+0x1c/0x140
[ 2950.696325][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2950.696325][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2950.696325][   T73]      netlink_rcv_skb+0x130/0x360
[ 2950.696325][   T73]      netlink_unicast+0x449/0x710
[ 2950.696325][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2950.696325][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2950.696325][   T73]      ___sys_sendmsg+0xee/0x170
[ 2950.696325][   T73]      __sys_sendmsg+0xcd/0x170
[ 2950.696325][   T73]      do_syscall_64+0xc6/0x1e0
[ 2950.696325][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2950.696325][   T73] 
[ 2950.698231][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2950.698231][   T73]      dst_init+0x84/0x4a0
[ 2950.698231][   T73]      dst_alloc+0x97/0x150
[ 2950.698231][   T73]      ip6_dst_alloc+0x23/0x90
[ 2950.698231][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2950.698231][   T73]      ip6_pol_route+0x56f/0x840
[ 2950.698231][   T73]      fib6_rule_lookup+0x456/0x630
[ 2950.698231][   T73]      ip6_route_input+0x59c/0xa50
[ 2950.698231][   T73]      ipv6_rcv+0x397/0x810
[ 2950.698231][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2950.698231][   T73]      process_backlog+0x101/0x620
[ 2950.698231][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2950.698231][   T73]      net_rx_action+0x495/0xbe0
[ 2950.698231][   T73]      __do_softirq+0x1b5/0x7f6
[ 2950.698231][   T73] 
[ 2950.700842][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2950.700842][   T73]      netdev_get_by_index+0x5e/0x80
[ 2950.700842][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2950.700842][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2950.700842][   T73]      ip6_route_add+0x1c/0x140
[ 2950.700842][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2950.700842][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2950.700842][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2950.700842][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2950.700842][   T73]      netlink_rcv_skb+0x130/0x360
[ 2950.700842][   T73]      netlink_unicast+0x449/0x710
[ 2950.700842][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2950.700842][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2950.700842][   T73]      ___sys_sendmsg+0xee/0x170
[ 2950.700842][   T73]      __sys_sendmsg+0xcd/0x170
[ 2950.700842][   T73]      do_syscall_64+0xc6/0x1e0
[ 2950.700842][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2950.700842][   T73] 
[ 2950.703238][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2950.703238][   T73]      netdev_get_by_index+0x5e/0x80
[ 2950.703238][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2950.703238][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2950.703238][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2950.703238][   T73]      ipv6_add_addr+0x411/0x2000
[ 2950.703238][   T73]      inet6_addr_add+0x30e/0xa40
[ 2950.703238][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2950.703238][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2950.703238][   T73]      netlink_rcv_skb+0x130/0x360
[ 2950.703238][   T73]      netlink_unicast+0x449/0x710
[ 2950.703238][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2950.703238][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2950.703238][   T73]      ___sys_sendmsg+0xee/0x170
[ 2950.703238][   T73]      __sys_sendmsg+0xcd/0x170
[ 2950.703238][   T73]      do_syscall_64+0xc6/0x1e0
[ 2950.703238][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2950.703238][   T73] 
[ 2950.705246][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2950.705246][   T73]      netdev_get_by_index+0x5e/0x80
[ 2950.705246][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2950.705246][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2950.705246][   T73]      ip6_route_add+0x1c/0x140
[ 2950.705246][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2950.705246][   T73]      addrconf_add_dev+0xe2/0x170
[ 2950.705246][   T73]      inet6_addr_add+0x12f/0xa40
[ 2950.705246][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2950.705246][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2950.705246][   T73]      netlink_rcv_skb+0x130/0x360
[ 2950.705246][   T73]      netlink_unicast+0x449/0x710
[ 2950.705246][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2950.705246][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2950.705246][   T73]      ___sys_sendmsg+0xee/0x170
[ 2950.705246][   T73]      __sys_sendmsg+0xcd/0x170
[ 2950.705246][   T73]      do_syscall_64+0xc6/0x1e0
[ 2950.705246][   T73] 
[ 2950.707224][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2950.707224][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2950.707224][   T73]      ipv6_find_idev+0x102/0x170
[ 2950.707224][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2950.707224][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2950.707224][   T73]      netlink_rcv_skb+0x130/0x360
[ 2950.707224][   T73]      netlink_unicast+0x449/0x710
[ 2950.707224][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2950.707224][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2950.707224][   T73]      ___sys_sendmsg+0xee/0x170
[ 2950.707224][   T73]      __sys_sendmsg+0xcd/0x170
[ 2950.707224][   T73]      do_syscall_64+0xc6/0x1e0
[ 2950.707224][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2950.707224][   T73] 
[ 2950.708775][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2950.708775][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2950.708775][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2950.708775][   T73]      ipv6_find_idev+0x102/0x170
[ 2950.708775][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2950.708775][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2950.708775][   T73]      netlink_rcv_skb+0x130/0x360
[ 2950.708775][   T73]      netlink_unicast+0x449/0x710
[ 2950.708775][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2950.708775][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2950.708775][   T73]      ___sys_sendmsg+0xee/0x170
[ 2950.708775][   T73]      __sys_sendmsg+0xcd/0x170
[ 2950.708775][   T73]      do_syscall_64+0xc6/0x1e0
[ 2950.708775][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2950.708775][   T73] 
[ 2950.710565][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2950.710867][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2950.710867][   T73]      netdev_get_by_index+0x5e/0x80
[ 2950.710867][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2950.710867][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2950.710867][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2950.710867][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2950.710867][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2950.710867][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2950.710867][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2950.710867][   T73]      addrconf_dad_begin+0x310/0x670
[ 2950.710867][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2950.710867][   T73]      process_one_work+0x84d/0x18a0
[ 2950.710867][   T73]      worker_thread+0x587/0xd30
[ 2950.710867][   T73]      kthread+0x28a/0x350
[ 2950.710867][   T73]      ret_from_fork+0x31/0x70
[ 2950.710867][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2950.710867][   T73] 
[ 2950.712810][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2950.712810][   T73]      netdev_get_by_index+0x5e/0x80
[ 2950.712810][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2950.712810][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2950.712810][   T73]      ip6_route_add+0x1c/0x140
[ 2950.712810][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2950.712810][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2950.712810][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2950.712810][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2950.712810][   T73]      netlink_rcv_skb+0x130/0x360
[ 2950.712810][   T73]      netlink_unicast+0x449/0x710
[ 2950.712810][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2950.712810][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2950.712810][   T73]      ___sys_sendmsg+0xee/0x170
[ 2950.712810][   T73]      __sys_sendmsg+0xcd/0x170
[ 2950.712810][   T73]      do_syscall_64+0xc6/0x1e0
[ 2950.712810][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2950.712810][   T73] 
[ 2950.714833][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2950.714833][   T73]      netdev_get_by_index+0x5e/0x80
[ 2950.714833][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2950.714833][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2950.714833][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2950.714833][   T73]      ipv6_add_addr+0x411/0x2000
[ 2950.714833][   T73]      inet6_addr_add+0x30e/0xa40
[ 2950.714833][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2950.714833][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2950.714833][   T73]      netlink_rcv_skb+0x130/0x360
[ 2950.714833][   T73]      netlink_unicast+0x449/0x710
[ 2950.714833][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2950.714833][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2950.714833][   T73]      ___sys_sendmsg+0xee/0x170
[ 2950.714833][   T73]      __sys_sendmsg+0xcd/0x170
[ 2950.714833][   T73]      do_syscall_64+0xc6/0x1e0
[ 2950.714833][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2950.714833][   T73] 
[ 2950.716844][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2950.716844][   T73]      netdev_get_by_index+0x5e/0x80
[ 2950.716844][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2950.716844][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2950.716844][   T73]      ip6_route_add+0x1c/0x140
[ 2950.716844][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2950.716844][   T73]      addrconf_add_dev+0xe2/0x170
[ 2950.716844][   T73]      inet6_addr_add+0x12f/0xa40
[ 2950.716844][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2950.716844][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2950.716844][   T73]      netlink_rcv_skb+0x130/0x360
[ 2950.716844][   T73]      netlink_unicast+0x449/0x710
[ 2950.716844][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2950.716844][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2950.716844][   T73]      ___sys_sendmsg+0xee/0x170
[ 2950.716844][   T73]      __sys_sendmsg+0xcd/0x170
[ 2950.716844][   T73]      do_syscall_64+0xc6/0x1e0
[ 2950.716844][   T73] 
[ 2950.718828][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2950.718828][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2950.718828][   T73]      ipv6_find_idev+0x102/0x170
[ 2950.718828][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2950.718828][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2950.718828][   T73]      netlink_rcv_skb+0x130/0x360
[ 2950.718828][   T73]      netlink_unicast+0x449/0x710
[ 2950.718828][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2950.718828][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2950.718828][   T73]      ___sys_sendmsg+0xee/0x170
[ 2950.718828][   T73]      __sys_sendmsg+0xcd/0x170
[ 2950.718828][   T73]      do_syscall_64+0xc6/0x1e0
[ 2950.718828][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2950.718828][   T73] 
[ 2950.720379][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2950.720379][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2950.720379][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2950.720379][   T73]      ipv6_find_idev+0x102/0x170
[ 2950.720379][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2950.720379][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2950.720379][   T73]      netlink_rcv_skb+0x130/0x360
[ 2950.720379][   T73]      netlink_unicast+0x449/0x710
[ 2950.720379][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2950.720379][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2950.720379][   T73]      ___sys_sendmsg+0xee/0x170
[ 2950.720379][   T73]      __sys_sendmsg+0xcd/0x170
[ 2950.720379][   T73]      do_syscall_64+0xc6/0x1e0
[ 2950.720379][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2950.720379][   T73] 
[ 2950.722096][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2950.722371][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2950.722371][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2950.722371][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2950.722371][   T73]      fib6_nh_init+0xa22/0x1580
[ 2950.722371][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2950.722371][   T73]      ip6_route_add+0x1c/0x140
[ 2950.722371][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2950.722371][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2950.722371][   T73]      netlink_rcv_skb+0x130/0x360
[ 2950.722371][   T73]      netlink_unicast+0x449/0x710
[ 2950.722371][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2950.722371][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2950.722371][   T73]      ___sys_sendmsg+0xee/0x170
[ 2950.722371][   T73]      __sys_sendmsg+0xcd/0x170
[ 2950.722371][   T73]      do_syscall_64+0xc6/0x1e0
[ 2950.722371][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2950.722371][   T73] 
[ 2950.724549][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2950.724549][   T73]      dst_init+0x84/0x4a0
[ 2950.724549][   T73]      dst_alloc+0x97/0x150
[ 2950.724549][   T73]      ip6_dst_alloc+0x23/0x90
[ 2950.724549][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2950.724549][   T73]      ip6_pol_route+0x56f/0x840
[ 2950.724549][   T73]      fib6_rule_lookup+0x456/0x630
[ 2950.724549][   T73]      ip6_route_input+0x59c/0xa50
[ 2950.724549][   T73]      ipv6_rcv+0x397/0x810
[ 2950.724549][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2950.724549][   T73]      process_backlog+0x101/0x620
[ 2950.724549][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2950.724549][   T73]      net_rx_action+0x495/0xbe0
[ 2950.724549][   T73]      __do_softirq+0x1b5/0x7f6
[ 2950.724549][   T73] 
[ 2950.726433][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2950.726433][   T73]      netdev_get_by_index+0x5e/0x80
[ 2950.726433][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2950.726433][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2950.726433][   T73]      ip6_route_add+0x1c/0x140
[ 2950.726433][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2950.726433][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2950.726433][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2950.726433][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2950.726433][   T73]      netlink_rcv_skb+0x130/0x360
[ 2950.726433][   T73]      netlink_unicast+0x449/0x710
[ 2950.726433][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2950.726433][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2950.726433][   T73]      ___sys_sendmsg+0xee/0x170
[ 2950.726433][   T73]      __sys_sendmsg+0xcd/0x170
[ 2950.726433][   T73]      do_syscall_64+0xc6/0x1e0
[ 2950.726433][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2950.726433][   T73] 
[ 2950.728693][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2950.728693][   T73]      netdev_get_by_index+0x5e/0x80
[ 2950.728693][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2950.728693][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2950.728693][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2950.728693][   T73]      ipv6_add_addr+0x411/0x2000
[ 2950.728693][   T73]      inet6_addr_add+0x30e/0xa40
[ 2950.728693][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2950.728693][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2950.728693][   T73]      netlink_rcv_skb+0x130/0x360
[ 2950.728693][   T73]      netlink_unicast+0x449/0x710
[ 2950.728693][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2950.728693][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2950.728693][   T73]      ___sys_sendmsg+0xee/0x170
[ 2950.728693][   T73]      __sys_sendmsg+0xcd/0x170
[ 2950.728693][   T73]      do_syscall_64+0xc6/0x1e0
[ 2950.728693][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2950.728693][   T73] 
[ 2950.730958][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2950.730958][   T73]      netdev_get_by_index+0x5e/0x80
[ 2950.730958][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2950.730958][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2950.730958][   T73]      ip6_route_add+0x1c/0x140
[ 2950.730958][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2950.730958][   T73]      addrconf_add_dev+0xe2/0x170
[ 2950.730958][   T73]      inet6_addr_add+0x12f/0xa40
[ 2950.730958][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2950.730958][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2950.730958][   T73]      netlink_rcv_skb+0x130/0x360
[ 2950.730958][   T73]      netlink_unicast+0x449/0x710
[ 2950.730958][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2950.730958][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2950.730958][   T73]      ___sys_sendmsg+0xee/0x170
[ 2950.730958][   T73]      __sys_sendmsg+0xcd/0x170
[ 2950.730958][   T73]      do_syscall_64+0xc6/0x1e0
[ 2950.730958][   T73] 
[ 2950.733122][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2950.733122][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2950.733122][   T73]      ipv6_find_idev+0x102/0x170
[ 2950.733122][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2950.733122][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2950.733122][   T73]      netlink_rcv_skb+0x130/0x360
[ 2950.733122][   T73]      netlink_unicast+0x449/0x710
[ 2950.733122][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2950.733122][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2950.733122][   T73]      ___sys_sendmsg+0xee/0x170
[ 2950.733122][   T73]      __sys_sendmsg+0xcd/0x170
[ 2950.733122][   T73]      do_syscall_64+0xc6/0x1e0
[ 2950.733122][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2950.733122][   T73] 
[ 2950.734903][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2950.734903][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2950.734903][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2950.734903][   T73]      ipv6_find_idev+0x102/0x170
[ 2950.734903][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2950.734903][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2950.734903][   T73]      netlink_rcv_skb+0x130/0x360
[ 2950.734903][   T73]      netlink_unicast+0x449/0x710
[ 2950.734903][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2950.734903][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2950.734903][   T73]      ___sys_sendmsg+0xee/0x170
[ 2950.734903][   T73]      __sys_sendmsg+0xcd/0x170
[ 2950.734903][   T73]      do_syscall_64+0xc6/0x1e0
[ 2950.734903][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2950.734903][   T73] 
[ 2950.736847][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2950.737124][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2950.737124][   T73]      netdev_get_by_index+0x5e/0x80
[ 2950.737124][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2950.737124][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2950.737124][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2950.737124][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2950.737124][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2950.737124][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2950.737124][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2950.737124][   T73]      addrconf_dad_begin+0x310/0x670
[ 2950.737124][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2950.737124][   T73]      process_one_work+0x84d/0x18a0
[ 2950.737124][   T73]      worker_thread+0x587/0xd30
[ 2950.737124][   T73]      kthread+0x28a/0x350
[ 2950.737124][   T73]      ret_from_fork+0x31/0x70
[ 2950.737124][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2950.737124][   T73] 
[ 2950.739287][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2950.739287][   T73]      netdev_get_by_index+0x5e/0x80
[ 2950.739287][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2950.739287][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2950.739287][   T73]      ip6_route_add+0x1c/0x140
[ 2950.739287][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2950.739287][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2950.739287][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2950.739287][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2950.739287][   T73]      netlink_rcv_skb+0x130/0x360
[ 2950.739287][   T73]      netlink_unicast+0x449/0x710
[ 2950.739287][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2950.739287][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2950.739287][   T73]      ___sys_sendmsg+0xee/0x170
[ 2950.739287][   T73]      __sys_sendmsg+0xcd/0x170
[ 2950.739287][   T73]      do_syscall_64+0xc6/0x1e0
[ 2950.739287][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2950.739287][   T73] 
[ 2950.741550][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2950.741550][   T73]      netdev_get_by_index+0x5e/0x80
[ 2950.741550][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2950.741550][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2950.741550][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2950.741550][   T73]      ipv6_add_addr+0x411/0x2000
[ 2950.741550][   T73]      inet6_addr_add+0x30e/0xa40
[ 2950.741550][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2950.741550][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2950.741550][   T73]      netlink_rcv_skb+0x130/0x360
[ 2950.741550][   T73]      netlink_unicast+0x449/0x710
[ 2950.741550][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2950.741550][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2950.741550][   T73]      ___sys_sendmsg+0xee/0x170
[ 2950.741550][   T73]      __sys_sendmsg+0xcd/0x170
[ 2950.741550][   T73]      do_syscall_64+0xc6/0x1e0
[ 2950.741550][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2950.741550][   T73] 
[ 2950.743737][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2950.743737][   T73]      netdev_get_by_index+0x5e/0x80
[ 2950.743737][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2950.743737][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2950.743737][   T73]      ip6_route_add+0x1c/0x140
[ 2950.743737][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2950.743737][   T73]      addrconf_add_dev+0xe2/0x170
[ 2950.743737][   T73]      inet6_addr_add+0x12f/0xa40
[ 2950.743737][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2950.743737][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2950.743737][   T73]      netlink_rcv_skb+0x130/0x360
[ 2950.743737][   T73]      netlink_unicast+0x449/0x710
[ 2950.743737][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2950.743737][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2950.743737][   T73]      ___sys_sendmsg+0xee/0x170
[ 2950.743737][   T73]      __sys_sendmsg+0xcd/0x170
[ 2950.743737][   T73]      do_syscall_64+0xc6/0x1e0
[ 2950.743737][   T73] 
[ 2950.746023][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2950.746023][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2950.746023][   T73]      ipv6_find_idev+0x102/0x170
[ 2950.746023][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2950.746023][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2950.746023][   T73]      netlink_rcv_skb+0x130/0x360
[ 2950.746023][   T73]      netlink_unicast+0x449/0x710
[ 2950.746023][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2950.746023][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2950.746023][   T73]      ___sys_sendmsg+0xee/0x170
[ 2950.746023][   T73]      __sys_sendmsg+0xcd/0x170
[ 2950.746023][   T73]      do_syscall_64+0xc6/0x1e0
[ 2950.746023][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2950.746023][   T73] 
[ 2950.747753][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2950.747753][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2950.747753][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2950.747753][   T73]      ipv6_find_idev+0x102/0x170
[ 2950.747753][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2950.747753][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2950.747753][   T73]      netlink_rcv_skb+0x130/0x360
[ 2950.747753][   T73]      netlink_unicast+0x449/0x710
[ 2950.747753][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2950.747753][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2950.747753][   T73]      ___sys_sendmsg+0xee/0x170
[ 2950.747753][   T73]      __sys_sendmsg+0xcd/0x170
[ 2950.747753][   T73]      do_syscall_64+0xc6/0x1e0
[ 2950.747753][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2950.747753][   T73] 
[ 2960.943726][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2960.944213][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2960.944213][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2960.944213][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2960.944213][   T73]      fib6_nh_init+0xa22/0x1580
[ 2960.944213][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2960.944213][   T73]      ip6_route_add+0x1c/0x140
[ 2960.944213][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2960.944213][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2960.944213][   T73]      netlink_rcv_skb+0x130/0x360
[ 2960.944213][   T73]      netlink_unicast+0x449/0x710
[ 2960.944213][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2960.944213][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2960.944213][   T73]      ___sys_sendmsg+0xee/0x170
[ 2960.944213][   T73]      __sys_sendmsg+0xcd/0x170
[ 2960.944213][   T73]      do_syscall_64+0xc6/0x1e0
[ 2960.944213][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2960.944213][   T73] 
[ 2960.946112][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2960.946112][   T73]      dst_init+0x84/0x4a0
[ 2960.946112][   T73]      dst_alloc+0x97/0x150
[ 2960.946112][   T73]      ip6_dst_alloc+0x23/0x90
[ 2960.946112][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2960.946112][   T73]      ip6_pol_route+0x56f/0x840
[ 2960.946112][   T73]      fib6_rule_lookup+0x456/0x630
[ 2960.946112][   T73]      ip6_route_input+0x59c/0xa50
[ 2960.946112][   T73]      ipv6_rcv+0x397/0x810
[ 2960.946112][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2960.946112][   T73]      process_backlog+0x101/0x620
[ 2960.946112][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2960.946112][   T73]      net_rx_action+0x495/0xbe0
[ 2960.946112][   T73]      __do_softirq+0x1b5/0x7f6
[ 2960.946112][   T73] 
[ 2960.947752][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2960.947752][   T73]      netdev_get_by_index+0x5e/0x80
[ 2960.947752][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2960.947752][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2960.947752][   T73]      ip6_route_add+0x1c/0x140
[ 2960.947752][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2960.947752][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2960.947752][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2960.947752][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2960.947752][   T73]      netlink_rcv_skb+0x130/0x360
[ 2960.947752][   T73]      netlink_unicast+0x449/0x710
[ 2960.947752][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2960.947752][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2960.947752][   T73]      ___sys_sendmsg+0xee/0x170
[ 2960.947752][   T73]      __sys_sendmsg+0xcd/0x170
[ 2960.947752][   T73]      do_syscall_64+0xc6/0x1e0
[ 2960.947752][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2960.947752][   T73] 
[ 2960.949765][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2960.949765][   T73]      netdev_get_by_index+0x5e/0x80
[ 2960.949765][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2960.949765][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2960.949765][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2960.949765][   T73]      ipv6_add_addr+0x411/0x2000
[ 2960.949765][   T73]      inet6_addr_add+0x30e/0xa40
[ 2960.949765][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2960.949765][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2960.949765][   T73]      netlink_rcv_skb+0x130/0x360
[ 2960.949765][   T73]      netlink_unicast+0x449/0x710
[ 2960.949765][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2960.949765][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2960.949765][   T73]      ___sys_sendmsg+0xee/0x170
[ 2960.949765][   T73]      __sys_sendmsg+0xcd/0x170
[ 2960.949765][   T73]      do_syscall_64+0xc6/0x1e0
[ 2960.949765][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2960.949765][   T73] 
[ 2960.951791][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2960.951791][   T73]      netdev_get_by_index+0x5e/0x80
[ 2960.951791][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2960.951791][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2960.951791][   T73]      ip6_route_add+0x1c/0x140
[ 2960.951791][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2960.951791][   T73]      addrconf_add_dev+0xe2/0x170
[ 2960.951791][   T73]      inet6_addr_add+0x12f/0xa40
[ 2960.951791][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2960.951791][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2960.951791][   T73]      netlink_rcv_skb+0x130/0x360
[ 2960.951791][   T73]      netlink_unicast+0x449/0x710
[ 2960.951791][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2960.951791][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2960.951791][   T73]      ___sys_sendmsg+0xee/0x170
[ 2960.951791][   T73]      __sys_sendmsg+0xcd/0x170
[ 2960.951791][   T73]      do_syscall_64+0xc6/0x1e0
[ 2960.951791][   T73] 
[ 2960.953759][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2960.953759][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2960.953759][   T73]      ipv6_find_idev+0x102/0x170
[ 2960.953759][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2960.953759][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2960.953759][   T73]      netlink_rcv_skb+0x130/0x360
[ 2960.953759][   T73]      netlink_unicast+0x449/0x710
[ 2960.953759][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2960.953759][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2960.953759][   T73]      ___sys_sendmsg+0xee/0x170
[ 2960.953759][   T73]      __sys_sendmsg+0xcd/0x170
[ 2960.953759][   T73]      do_syscall_64+0xc6/0x1e0
[ 2960.953759][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2960.953759][   T73] 
[ 2960.955304][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2960.955304][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2960.955304][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2960.955304][   T73]      ipv6_find_idev+0x102/0x170
[ 2960.955304][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2960.955304][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2960.955304][   T73]      netlink_rcv_skb+0x130/0x360
[ 2960.955304][   T73]      netlink_unicast+0x449/0x710
[ 2960.955304][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2960.955304][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2960.955304][   T73]      ___sys_sendmsg+0xee/0x170
[ 2960.955304][   T73]      __sys_sendmsg+0xcd/0x170
[ 2960.955304][   T73]      do_syscall_64+0xc6/0x1e0
[ 2960.955304][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2960.955304][   T73] 
[ 2960.957015][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2960.957305][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2960.957305][   T73]      netdev_get_by_index+0x5e/0x80
[ 2960.957305][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2960.957305][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2960.957305][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2960.957305][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2960.957305][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2960.957305][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2960.957305][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2960.957305][   T73]      addrconf_dad_begin+0x310/0x670
[ 2960.957305][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2960.957305][   T73]      process_one_work+0x84d/0x18a0
[ 2960.957305][   T73]      worker_thread+0x587/0xd30
[ 2960.957305][   T73]      kthread+0x28a/0x350
[ 2960.957305][   T73]      ret_from_fork+0x31/0x70
[ 2960.957305][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2960.957305][   T73] 
[ 2960.959213][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2960.959213][   T73]      netdev_get_by_index+0x5e/0x80
[ 2960.959213][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2960.959213][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2960.959213][   T73]      ip6_route_add+0x1c/0x140
[ 2960.959213][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2960.959213][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2960.959213][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2960.959213][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2960.959213][   T73]      netlink_rcv_skb+0x130/0x360
[ 2960.959213][   T73]      netlink_unicast+0x449/0x710
[ 2960.959213][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2960.959213][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2960.959213][   T73]      ___sys_sendmsg+0xee/0x170
[ 2960.959213][   T73]      __sys_sendmsg+0xcd/0x170
[ 2960.959213][   T73]      do_syscall_64+0xc6/0x1e0
[ 2960.959213][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2960.959213][   T73] 
[ 2960.961628][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2960.961628][   T73]      netdev_get_by_index+0x5e/0x80
[ 2960.961628][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2960.961628][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2960.961628][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2960.961628][   T73]      ipv6_add_addr+0x411/0x2000
[ 2960.961628][   T73]      inet6_addr_add+0x30e/0xa40
[ 2960.961628][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2960.961628][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2960.961628][   T73]      netlink_rcv_skb+0x130/0x360
[ 2960.961628][   T73]      netlink_unicast+0x449/0x710
[ 2960.961628][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2960.961628][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2960.961628][   T73]      ___sys_sendmsg+0xee/0x170
[ 2960.961628][   T73]      __sys_sendmsg+0xcd/0x170
[ 2960.961628][   T73]      do_syscall_64+0xc6/0x1e0
[ 2960.961628][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2960.961628][   T73] 
[ 2960.963627][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2960.963627][   T73]      netdev_get_by_index+0x5e/0x80
[ 2960.963627][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2960.963627][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2960.963627][   T73]      ip6_route_add+0x1c/0x140
[ 2960.963627][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2960.963627][   T73]      addrconf_add_dev+0xe2/0x170
[ 2960.963627][   T73]      inet6_addr_add+0x12f/0xa40
[ 2960.963627][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2960.963627][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2960.963627][   T73]      netlink_rcv_skb+0x130/0x360
[ 2960.963627][   T73]      netlink_unicast+0x449/0x710
[ 2960.963627][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2960.963627][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2960.963627][   T73]      ___sys_sendmsg+0xee/0x170
[ 2960.963627][   T73]      __sys_sendmsg+0xcd/0x170
[ 2960.963627][   T73]      do_syscall_64+0xc6/0x1e0
[ 2960.963627][   T73] 
[ 2960.965639][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2960.965639][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2960.965639][   T73]      ipv6_find_idev+0x102/0x170
[ 2960.965639][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2960.965639][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2960.965639][   T73]      netlink_rcv_skb+0x130/0x360
[ 2960.965639][   T73]      netlink_unicast+0x449/0x710
[ 2960.965639][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2960.965639][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2960.965639][   T73]      ___sys_sendmsg+0xee/0x170
[ 2960.965639][   T73]      __sys_sendmsg+0xcd/0x170
[ 2960.965639][   T73]      do_syscall_64+0xc6/0x1e0
[ 2960.965639][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2960.965639][   T73] 
[ 2960.967176][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2960.967176][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2960.967176][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2960.967176][   T73]      ipv6_find_idev+0x102/0x170
[ 2960.967176][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2960.967176][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2960.967176][   T73]      netlink_rcv_skb+0x130/0x360
[ 2960.967176][   T73]      netlink_unicast+0x449/0x710
[ 2960.967176][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2960.967176][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2960.967176][   T73]      ___sys_sendmsg+0xee/0x170
[ 2960.967176][   T73]      __sys_sendmsg+0xcd/0x170
[ 2960.967176][   T73]      do_syscall_64+0xc6/0x1e0
[ 2960.967176][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2960.967176][   T73] 
[ 2960.968860][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2960.969137][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2960.969137][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2960.969137][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2960.969137][   T73]      fib6_nh_init+0xa22/0x1580
[ 2960.969137][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2960.969137][   T73]      ip6_route_add+0x1c/0x140
[ 2960.969137][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2960.969137][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2960.969137][   T73]      netlink_rcv_skb+0x130/0x360
[ 2960.969137][   T73]      netlink_unicast+0x449/0x710
[ 2960.969137][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2960.969137][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2960.969137][   T73]      ___sys_sendmsg+0xee/0x170
[ 2960.969137][   T73]      __sys_sendmsg+0xcd/0x170
[ 2960.969137][   T73]      do_syscall_64+0xc6/0x1e0
[ 2960.969137][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2960.969137][   T73] 
[ 2960.971227][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2960.971227][   T73]      dst_init+0x84/0x4a0
[ 2960.971227][   T73]      dst_alloc+0x97/0x150
[ 2960.971227][   T73]      ip6_dst_alloc+0x23/0x90
[ 2960.971227][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2960.971227][   T73]      ip6_pol_route+0x56f/0x840
[ 2960.971227][   T73]      fib6_rule_lookup+0x456/0x630
[ 2960.971227][   T73]      ip6_route_input+0x59c/0xa50
[ 2960.971227][   T73]      ipv6_rcv+0x397/0x810
[ 2960.971227][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2960.971227][   T73]      process_backlog+0x101/0x620
[ 2960.971227][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2960.971227][   T73]      net_rx_action+0x495/0xbe0
[ 2960.971227][   T73]      __do_softirq+0x1b5/0x7f6
[ 2960.971227][   T73] 
[ 2960.973042][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2960.973042][   T73]      netdev_get_by_index+0x5e/0x80
[ 2960.973042][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2960.973042][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2960.973042][   T73]      ip6_route_add+0x1c/0x140
[ 2960.973042][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2960.973042][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2960.973042][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2960.973042][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2960.973042][   T73]      netlink_rcv_skb+0x130/0x360
[ 2960.973042][   T73]      netlink_unicast+0x449/0x710
[ 2960.973042][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2960.973042][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2960.973042][   T73]      ___sys_sendmsg+0xee/0x170
[ 2960.973042][   T73]      __sys_sendmsg+0xcd/0x170
[ 2960.973042][   T73]      do_syscall_64+0xc6/0x1e0
[ 2960.973042][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2960.973042][   T73] 
[ 2960.975287][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2960.975287][   T73]      netdev_get_by_index+0x5e/0x80
[ 2960.975287][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2960.975287][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2960.975287][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2960.975287][   T73]      ipv6_add_addr+0x411/0x2000
[ 2960.975287][   T73]      inet6_addr_add+0x30e/0xa40
[ 2960.975287][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2960.975287][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2960.975287][   T73]      netlink_rcv_skb+0x130/0x360
[ 2960.975287][   T73]      netlink_unicast+0x449/0x710
[ 2960.975287][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2960.975287][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2960.975287][   T73]      ___sys_sendmsg+0xee/0x170
[ 2960.975287][   T73]      __sys_sendmsg+0xcd/0x170
[ 2960.975287][   T73]      do_syscall_64+0xc6/0x1e0
[ 2960.975287][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2960.975287][   T73] 
[ 2960.977589][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2960.977589][   T73]      netdev_get_by_index+0x5e/0x80
[ 2960.977589][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2960.977589][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2960.977589][   T73]      ip6_route_add+0x1c/0x140
[ 2960.977589][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2960.977589][   T73]      addrconf_add_dev+0xe2/0x170
[ 2960.977589][   T73]      inet6_addr_add+0x12f/0xa40
[ 2960.977589][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2960.977589][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2960.977589][   T73]      netlink_rcv_skb+0x130/0x360
[ 2960.977589][   T73]      netlink_unicast+0x449/0x710
[ 2960.977589][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2960.977589][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2960.977589][   T73]      ___sys_sendmsg+0xee/0x170
[ 2960.977589][   T73]      __sys_sendmsg+0xcd/0x170
[ 2960.977589][   T73]      do_syscall_64+0xc6/0x1e0
[ 2960.977589][   T73] 
[ 2960.979671][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2960.979671][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2960.979671][   T73]      ipv6_find_idev+0x102/0x170
[ 2960.979671][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2960.979671][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2960.979671][   T73]      netlink_rcv_skb+0x130/0x360
[ 2960.979671][   T73]      netlink_unicast+0x449/0x710
[ 2960.979671][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2960.979671][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2960.979671][   T73]      ___sys_sendmsg+0xee/0x170
[ 2960.979671][   T73]      __sys_sendmsg+0xcd/0x170
[ 2960.979671][   T73]      do_syscall_64+0xc6/0x1e0
[ 2960.979671][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2960.979671][   T73] 
[ 2960.981401][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2960.981401][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2960.981401][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2960.981401][   T73]      ipv6_find_idev+0x102/0x170
[ 2960.981401][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2960.981401][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2960.981401][   T73]      netlink_rcv_skb+0x130/0x360
[ 2960.981401][   T73]      netlink_unicast+0x449/0x710
[ 2960.981401][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2960.981401][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2960.981401][   T73]      ___sys_sendmsg+0xee/0x170
[ 2960.981401][   T73]      __sys_sendmsg+0xcd/0x170
[ 2960.981401][   T73]      do_syscall_64+0xc6/0x1e0
[ 2960.981401][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2960.981401][   T73] 
[ 2960.983336][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2960.983613][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2960.983613][   T73]      netdev_get_by_index+0x5e/0x80
[ 2960.983613][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2960.983613][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2960.983613][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2960.983613][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2960.983613][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2960.983613][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2960.983613][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2960.983613][   T73]      addrconf_dad_begin+0x310/0x670
[ 2960.983613][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2960.983613][   T73]      process_one_work+0x84d/0x18a0
[ 2960.983613][   T73]      worker_thread+0x587/0xd30
[ 2960.983613][   T73]      kthread+0x28a/0x350
[ 2960.983613][   T73]      ret_from_fork+0x31/0x70
[ 2960.983613][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2960.983613][   T73] 
[ 2960.986317][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2960.986317][   T73]      netdev_get_by_index+0x5e/0x80
[ 2960.986317][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2960.986317][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2960.986317][   T73]      ip6_route_add+0x1c/0x140
[ 2960.986317][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2960.986317][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2960.986317][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2960.986317][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2960.986317][   T73]      netlink_rcv_skb+0x130/0x360
[ 2960.986317][   T73]      netlink_unicast+0x449/0x710
[ 2960.986317][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2960.986317][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2960.986317][   T73]      ___sys_sendmsg+0xee/0x170
[ 2960.986317][   T73]      __sys_sendmsg+0xcd/0x170
[ 2960.986317][   T73]      do_syscall_64+0xc6/0x1e0
[ 2960.986317][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2960.986317][   T73] 
[ 2960.988551][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2960.988551][   T73]      netdev_get_by_index+0x5e/0x80
[ 2960.988551][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2960.988551][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2960.988551][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2960.988551][   T73]      ipv6_add_addr+0x411/0x2000
[ 2960.988551][   T73]      inet6_addr_add+0x30e/0xa40
[ 2960.988551][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2960.988551][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2960.988551][   T73]      netlink_rcv_skb+0x130/0x360
[ 2960.988551][   T73]      netlink_unicast+0x449/0x710
[ 2960.988551][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2960.988551][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2960.988551][   T73]      ___sys_sendmsg+0xee/0x170
[ 2960.988551][   T73]      __sys_sendmsg+0xcd/0x170
[ 2960.988551][   T73]      do_syscall_64+0xc6/0x1e0
[ 2960.988551][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2960.988551][   T73] 
[ 2960.990792][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2960.990792][   T73]      netdev_get_by_index+0x5e/0x80
[ 2960.990792][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2960.990792][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2960.990792][   T73]      ip6_route_add+0x1c/0x140
[ 2960.990792][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2960.990792][   T73]      addrconf_add_dev+0xe2/0x170
[ 2960.990792][   T73]      inet6_addr_add+0x12f/0xa40
[ 2960.990792][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2960.990792][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2960.990792][   T73]      netlink_rcv_skb+0x130/0x360
[ 2960.990792][   T73]      netlink_unicast+0x449/0x710
[ 2960.990792][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2960.990792][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2960.990792][   T73]      ___sys_sendmsg+0xee/0x170
[ 2960.990792][   T73]      __sys_sendmsg+0xcd/0x170
[ 2960.990792][   T73]      do_syscall_64+0xc6/0x1e0
[ 2960.990792][   T73] 
[ 2960.992998][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2960.992998][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2960.992998][   T73]      ipv6_find_idev+0x102/0x170
[ 2960.992998][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2960.992998][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2960.992998][   T73]      netlink_rcv_skb+0x130/0x360
[ 2960.992998][   T73]      netlink_unicast+0x449/0x710
[ 2960.992998][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2960.992998][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2960.992998][   T73]      ___sys_sendmsg+0xee/0x170
[ 2960.992998][   T73]      __sys_sendmsg+0xcd/0x170
[ 2960.992998][   T73]      do_syscall_64+0xc6/0x1e0
[ 2960.992998][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2960.992998][   T73] 
[ 2960.994725][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2960.994725][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2960.994725][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2960.994725][   T73]      ipv6_find_idev+0x102/0x170
[ 2960.994725][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2960.994725][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2960.994725][   T73]      netlink_rcv_skb+0x130/0x360
[ 2960.994725][   T73]      netlink_unicast+0x449/0x710
[ 2960.994725][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2960.994725][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2960.994725][   T73]      ___sys_sendmsg+0xee/0x170
[ 2960.994725][   T73]      __sys_sendmsg+0xcd/0x170
[ 2960.994725][   T73]      do_syscall_64+0xc6/0x1e0
[ 2960.994725][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2960.994725][   T73] 
[ 2971.247826][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2971.248321][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2971.248321][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2971.248321][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2971.248321][   T73]      fib6_nh_init+0xa22/0x1580
[ 2971.248321][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2971.248321][   T73]      ip6_route_add+0x1c/0x140
[ 2971.248321][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2971.248321][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2971.248321][   T73]      netlink_rcv_skb+0x130/0x360
[ 2971.248321][   T73]      netlink_unicast+0x449/0x710
[ 2971.248321][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2971.248321][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2971.248321][   T73]      ___sys_sendmsg+0xee/0x170
[ 2971.248321][   T73]      __sys_sendmsg+0xcd/0x170
[ 2971.248321][   T73]      do_syscall_64+0xc6/0x1e0
[ 2971.248321][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2971.248321][   T73] 
[ 2971.250212][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2971.250212][   T73]      dst_init+0x84/0x4a0
[ 2971.250212][   T73]      dst_alloc+0x97/0x150
[ 2971.250212][   T73]      ip6_dst_alloc+0x23/0x90
[ 2971.250212][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2971.250212][   T73]      ip6_pol_route+0x56f/0x840
[ 2971.250212][   T73]      fib6_rule_lookup+0x456/0x630
[ 2971.250212][   T73]      ip6_route_input+0x59c/0xa50
[ 2971.250212][   T73]      ipv6_rcv+0x397/0x810
[ 2971.250212][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2971.250212][   T73]      process_backlog+0x101/0x620
[ 2971.250212][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2971.250212][   T73]      net_rx_action+0x495/0xbe0
[ 2971.250212][   T73]      __do_softirq+0x1b5/0x7f6
[ 2971.250212][   T73] 
[ 2971.251861][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2971.251861][   T73]      netdev_get_by_index+0x5e/0x80
[ 2971.251861][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2971.251861][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2971.251861][   T73]      ip6_route_add+0x1c/0x140
[ 2971.251861][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2971.251861][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2971.251861][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2971.251861][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2971.251861][   T73]      netlink_rcv_skb+0x130/0x360
[ 2971.251861][   T73]      netlink_unicast+0x449/0x710
[ 2971.251861][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2971.251861][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2971.251861][   T73]      ___sys_sendmsg+0xee/0x170
[ 2971.251861][   T73]      __sys_sendmsg+0xcd/0x170
[ 2971.251861][   T73]      do_syscall_64+0xc6/0x1e0
[ 2971.251861][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2971.251861][   T73] 
[ 2971.253856][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2971.253856][   T73]      netdev_get_by_index+0x5e/0x80
[ 2971.253856][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2971.253856][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2971.253856][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2971.253856][   T73]      ipv6_add_addr+0x411/0x2000
[ 2971.253856][   T73]      inet6_addr_add+0x30e/0xa40
[ 2971.253856][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2971.253856][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2971.253856][   T73]      netlink_rcv_skb+0x130/0x360
[ 2971.253856][   T73]      netlink_unicast+0x449/0x710
[ 2971.253856][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2971.253856][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2971.253856][   T73]      ___sys_sendmsg+0xee/0x170
[ 2971.253856][   T73]      __sys_sendmsg+0xcd/0x170
[ 2971.253856][   T73]      do_syscall_64+0xc6/0x1e0
[ 2971.253856][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2971.253856][   T73] 
[ 2971.255852][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2971.255852][   T73]      netdev_get_by_index+0x5e/0x80
[ 2971.255852][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2971.255852][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2971.255852][   T73]      ip6_route_add+0x1c/0x140
[ 2971.255852][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2971.255852][   T73]      addrconf_add_dev+0xe2/0x170
[ 2971.255852][   T73]      inet6_addr_add+0x12f/0xa40
[ 2971.255852][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2971.255852][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2971.255852][   T73]      netlink_rcv_skb+0x130/0x360
[ 2971.255852][   T73]      netlink_unicast+0x449/0x710
[ 2971.255852][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2971.255852][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2971.255852][   T73]      ___sys_sendmsg+0xee/0x170
[ 2971.255852][   T73]      __sys_sendmsg+0xcd/0x170
[ 2971.255852][   T73]      do_syscall_64+0xc6/0x1e0
[ 2971.255852][   T73] 
[ 2971.257808][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2971.257808][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2971.257808][   T73]      ipv6_find_idev+0x102/0x170
[ 2971.257808][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2971.257808][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2971.257808][   T73]      netlink_rcv_skb+0x130/0x360
[ 2971.257808][   T73]      netlink_unicast+0x449/0x710
[ 2971.257808][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2971.257808][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2971.257808][   T73]      ___sys_sendmsg+0xee/0x170
[ 2971.257808][   T73]      __sys_sendmsg+0xcd/0x170
[ 2971.257808][   T73]      do_syscall_64+0xc6/0x1e0
[ 2971.257808][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2971.257808][   T73] 
[ 2971.259341][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2971.259341][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2971.259341][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2971.259341][   T73]      ipv6_find_idev+0x102/0x170
[ 2971.259341][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2971.259341][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2971.259341][   T73]      netlink_rcv_skb+0x130/0x360
[ 2971.259341][   T73]      netlink_unicast+0x449/0x710
[ 2971.259341][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2971.259341][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2971.259341][   T73]      ___sys_sendmsg+0xee/0x170
[ 2971.259341][   T73]      __sys_sendmsg+0xcd/0x170
[ 2971.259341][   T73]      do_syscall_64+0xc6/0x1e0
[ 2971.259341][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2971.259341][   T73] 
[ 2971.261037][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2971.261317][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2971.261317][   T73]      netdev_get_by_index+0x5e/0x80
[ 2971.261317][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2971.261317][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2971.261317][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2971.261317][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2971.261317][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2971.261317][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2971.261317][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2971.261317][   T73]      addrconf_dad_begin+0x310/0x670
[ 2971.261317][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2971.261317][   T73]      process_one_work+0x84d/0x18a0
[ 2971.261317][   T73]      worker_thread+0x587/0xd30
[ 2971.261317][   T73]      kthread+0x28a/0x350
[ 2971.261317][   T73]      ret_from_fork+0x31/0x70
[ 2971.261317][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2971.261317][   T73] 
[ 2971.263218][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2971.263218][   T73]      netdev_get_by_index+0x5e/0x80
[ 2971.263218][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2971.263218][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2971.263218][   T73]      ip6_route_add+0x1c/0x140
[ 2971.263218][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2971.263218][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2971.263218][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2971.263218][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2971.263218][   T73]      netlink_rcv_skb+0x130/0x360
[ 2971.263218][   T73]      netlink_unicast+0x449/0x710
[ 2971.263218][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2971.263218][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2971.263218][   T73]      ___sys_sendmsg+0xee/0x170
[ 2971.263218][   T73]      __sys_sendmsg+0xcd/0x170
[ 2971.263218][   T73]      do_syscall_64+0xc6/0x1e0
[ 2971.263218][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2971.263218][   T73] 
[ 2971.265209][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2971.265209][   T73]      netdev_get_by_index+0x5e/0x80
[ 2971.265209][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2971.265209][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2971.265209][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2971.265209][   T73]      ipv6_add_addr+0x411/0x2000
[ 2971.265209][   T73]      inet6_addr_add+0x30e/0xa40
[ 2971.265209][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2971.265209][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2971.265209][   T73]      netlink_rcv_skb+0x130/0x360
[ 2971.265209][   T73]      netlink_unicast+0x449/0x710
[ 2971.265209][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2971.265209][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2971.265209][   T73]      ___sys_sendmsg+0xee/0x170
[ 2971.265209][   T73]      __sys_sendmsg+0xcd/0x170
[ 2971.265209][   T73]      do_syscall_64+0xc6/0x1e0
[ 2971.265209][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2971.265209][   T73] 
[ 2971.267195][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2971.267195][   T73]      netdev_get_by_index+0x5e/0x80
[ 2971.267195][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2971.267195][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2971.267195][   T73]      ip6_route_add+0x1c/0x140
[ 2971.267195][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2971.267195][   T73]      addrconf_add_dev+0xe2/0x170
[ 2971.267195][   T73]      inet6_addr_add+0x12f/0xa40
[ 2971.267195][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2971.267195][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2971.267195][   T73]      netlink_rcv_skb+0x130/0x360
[ 2971.267195][   T73]      netlink_unicast+0x449/0x710
[ 2971.267195][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2971.267195][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2971.267195][   T73]      ___sys_sendmsg+0xee/0x170
[ 2971.267195][   T73]      __sys_sendmsg+0xcd/0x170
[ 2971.267195][   T73]      do_syscall_64+0xc6/0x1e0
[ 2971.267195][   T73] 
[ 2971.269145][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2971.269145][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2971.269145][   T73]      ipv6_find_idev+0x102/0x170
[ 2971.269145][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2971.269145][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2971.269145][   T73]      netlink_rcv_skb+0x130/0x360
[ 2971.269145][   T73]      netlink_unicast+0x449/0x710
[ 2971.269145][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2971.269145][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2971.269145][   T73]      ___sys_sendmsg+0xee/0x170
[ 2971.269145][   T73]      __sys_sendmsg+0xcd/0x170
[ 2971.269145][   T73]      do_syscall_64+0xc6/0x1e0
[ 2971.269145][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2971.269145][   T73] 
[ 2971.270678][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2971.270678][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2971.270678][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2971.270678][   T73]      ipv6_find_idev+0x102/0x170
[ 2971.270678][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2971.270678][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2971.270678][   T73]      netlink_rcv_skb+0x130/0x360
[ 2971.270678][   T73]      netlink_unicast+0x449/0x710
[ 2971.270678][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2971.270678][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2971.270678][   T73]      ___sys_sendmsg+0xee/0x170
[ 2971.270678][   T73]      __sys_sendmsg+0xcd/0x170
[ 2971.270678][   T73]      do_syscall_64+0xc6/0x1e0
[ 2971.270678][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2971.270678][   T73] 
[ 2971.272364][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2971.272632][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2971.272632][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2971.272632][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2971.272632][   T73]      fib6_nh_init+0xa22/0x1580
[ 2971.272632][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2971.272632][   T73]      ip6_route_add+0x1c/0x140
[ 2971.272632][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2971.272632][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2971.272632][   T73]      netlink_rcv_skb+0x130/0x360
[ 2971.272632][   T73]      netlink_unicast+0x449/0x710
[ 2971.272632][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2971.272632][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2971.272632][   T73]      ___sys_sendmsg+0xee/0x170
[ 2971.272632][   T73]      __sys_sendmsg+0xcd/0x170
[ 2971.272632][   T73]      do_syscall_64+0xc6/0x1e0
[ 2971.272632][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2971.272632][   T73] 
[ 2971.274683][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2971.274683][   T73]      dst_init+0x84/0x4a0
[ 2971.274683][   T73]      dst_alloc+0x97/0x150
[ 2971.274683][   T73]      ip6_dst_alloc+0x23/0x90
[ 2971.274683][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2971.274683][   T73]      ip6_pol_route+0x56f/0x840
[ 2971.274683][   T73]      fib6_rule_lookup+0x456/0x630
[ 2971.274683][   T73]      ip6_route_input+0x59c/0xa50
[ 2971.274683][   T73]      ipv6_rcv+0x397/0x810
[ 2971.274683][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2971.274683][   T73]      process_backlog+0x101/0x620
[ 2971.274683][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2971.274683][   T73]      net_rx_action+0x495/0xbe0
[ 2971.274683][   T73]      __do_softirq+0x1b5/0x7f6
[ 2971.274683][   T73] 
[ 2971.276547][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2971.276547][   T73]      netdev_get_by_index+0x5e/0x80
[ 2971.276547][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2971.276547][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2971.276547][   T73]      ip6_route_add+0x1c/0x140
[ 2971.276547][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2971.276547][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2971.276547][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2971.276547][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2971.276547][   T73]      netlink_rcv_skb+0x130/0x360
[ 2971.276547][   T73]      netlink_unicast+0x449/0x710
[ 2971.276547][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2971.276547][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2971.276547][   T73]      ___sys_sendmsg+0xee/0x170
[ 2971.276547][   T73]      __sys_sendmsg+0xcd/0x170
[ 2971.276547][   T73]      do_syscall_64+0xc6/0x1e0
[ 2971.276547][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2971.276547][   T73] 
[ 2971.278770][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2971.278770][   T73]      netdev_get_by_index+0x5e/0x80
[ 2971.278770][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2971.278770][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2971.278770][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2971.278770][   T73]      ipv6_add_addr+0x411/0x2000
[ 2971.278770][   T73]      inet6_addr_add+0x30e/0xa40
[ 2971.278770][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2971.278770][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2971.278770][   T73]      netlink_rcv_skb+0x130/0x360
[ 2971.278770][   T73]      netlink_unicast+0x449/0x710
[ 2971.278770][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2971.278770][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2971.278770][   T73]      ___sys_sendmsg+0xee/0x170
[ 2971.278770][   T73]      __sys_sendmsg+0xcd/0x170
[ 2971.278770][   T73]      do_syscall_64+0xc6/0x1e0
[ 2971.278770][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2971.278770][   T73] 
[ 2971.280932][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2971.280932][   T73]      netdev_get_by_index+0x5e/0x80
[ 2971.280932][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2971.280932][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2971.280932][   T73]      ip6_route_add+0x1c/0x140
[ 2971.280932][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2971.280932][   T73]      addrconf_add_dev+0xe2/0x170
[ 2971.280932][   T73]      inet6_addr_add+0x12f/0xa40
[ 2971.280932][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2971.280932][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2971.280932][   T73]      netlink_rcv_skb+0x130/0x360
[ 2971.280932][   T73]      netlink_unicast+0x449/0x710
[ 2971.280932][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2971.280932][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2971.280932][   T73]      ___sys_sendmsg+0xee/0x170
[ 2971.280932][   T73]      __sys_sendmsg+0xcd/0x170
[ 2971.280932][   T73]      do_syscall_64+0xc6/0x1e0
[ 2971.280932][   T73] 
[ 2971.283124][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2971.283124][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2971.283124][   T73]      ipv6_find_idev+0x102/0x170
[ 2971.283124][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2971.283124][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2971.283124][   T73]      netlink_rcv_skb+0x130/0x360
[ 2971.283124][   T73]      netlink_unicast+0x449/0x710
[ 2971.283124][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2971.283124][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2971.283124][   T73]      ___sys_sendmsg+0xee/0x170
[ 2971.283124][   T73]      __sys_sendmsg+0xcd/0x170
[ 2971.283124][   T73]      do_syscall_64+0xc6/0x1e0
[ 2971.283124][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2971.283124][   T73] 
[ 2971.284888][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2971.284888][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2971.284888][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2971.284888][   T73]      ipv6_find_idev+0x102/0x170
[ 2971.284888][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2971.284888][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2971.284888][   T73]      netlink_rcv_skb+0x130/0x360
[ 2971.284888][   T73]      netlink_unicast+0x449/0x710
[ 2971.284888][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2971.284888][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2971.284888][   T73]      ___sys_sendmsg+0xee/0x170
[ 2971.284888][   T73]      __sys_sendmsg+0xcd/0x170
[ 2971.284888][   T73]      do_syscall_64+0xc6/0x1e0
[ 2971.284888][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2971.284888][   T73] 
[ 2971.286738][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2971.287066][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2971.287066][   T73]      netdev_get_by_index+0x5e/0x80
[ 2971.287066][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2971.287066][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2971.287066][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2971.287066][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2971.287066][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2971.287066][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2971.287066][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2971.287066][   T73]      addrconf_dad_begin+0x310/0x670
[ 2971.287066][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2971.287066][   T73]      process_one_work+0x84d/0x18a0
[ 2971.287066][   T73]      worker_thread+0x587/0xd30
[ 2971.287066][   T73]      kthread+0x28a/0x350
[ 2971.287066][   T73]      ret_from_fork+0x31/0x70
[ 2971.287066][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2971.287066][   T73] 
[ 2971.289141][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2971.289141][   T73]      netdev_get_by_index+0x5e/0x80
[ 2971.289141][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2971.289141][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2971.289141][   T73]      ip6_route_add+0x1c/0x140
[ 2971.289141][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2971.289141][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2971.289141][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2971.289141][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2971.289141][   T73]      netlink_rcv_skb+0x130/0x360
[ 2971.289141][   T73]      netlink_unicast+0x449/0x710
[ 2971.289141][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2971.289141][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2971.289141][   T73]      ___sys_sendmsg+0xee/0x170
[ 2971.289141][   T73]      __sys_sendmsg+0xcd/0x170
[ 2971.289141][   T73]      do_syscall_64+0xc6/0x1e0
[ 2971.289141][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2971.289141][   T73] 
[ 2971.291782][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2971.291782][   T73]      netdev_get_by_index+0x5e/0x80
[ 2971.291782][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2971.291782][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2971.291782][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2971.291782][   T73]      ipv6_add_addr+0x411/0x2000
[ 2971.291782][   T73]      inet6_addr_add+0x30e/0xa40
[ 2971.291782][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2971.291782][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2971.291782][   T73]      netlink_rcv_skb+0x130/0x360
[ 2971.291782][   T73]      netlink_unicast+0x449/0x710
[ 2971.291782][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2971.291782][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2971.291782][   T73]      ___sys_sendmsg+0xee/0x170
[ 2971.291782][   T73]      __sys_sendmsg+0xcd/0x170
[ 2971.291782][   T73]      do_syscall_64+0xc6/0x1e0
[ 2971.291782][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2971.291782][   T73] 
[ 2971.294005][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2971.294005][   T73]      netdev_get_by_index+0x5e/0x80
[ 2971.294005][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2971.294005][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2971.294005][   T73]      ip6_route_add+0x1c/0x140
[ 2971.294005][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2971.294005][   T73]      addrconf_add_dev+0xe2/0x170
[ 2971.294005][   T73]      inet6_addr_add+0x12f/0xa40
[ 2971.294005][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2971.294005][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2971.294005][   T73]      netlink_rcv_skb+0x130/0x360
[ 2971.294005][   T73]      netlink_unicast+0x449/0x710
[ 2971.294005][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2971.294005][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2971.294005][   T73]      ___sys_sendmsg+0xee/0x170
[ 2971.294005][   T73]      __sys_sendmsg+0xcd/0x170
[ 2971.294005][   T73]      do_syscall_64+0xc6/0x1e0
[ 2971.294005][   T73] 
[ 2971.296258][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2971.296258][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2971.296258][   T73]      ipv6_find_idev+0x102/0x170
[ 2971.296258][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2971.296258][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2971.296258][   T73]      netlink_rcv_skb+0x130/0x360
[ 2971.296258][   T73]      netlink_unicast+0x449/0x710
[ 2971.296258][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2971.296258][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2971.296258][   T73]      ___sys_sendmsg+0xee/0x170
[ 2971.296258][   T73]      __sys_sendmsg+0xcd/0x170
[ 2971.296258][   T73]      do_syscall_64+0xc6/0x1e0
[ 2971.296258][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2971.296258][   T73] 
[ 2971.297993][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2971.297993][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2971.297993][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2971.297993][   T73]      ipv6_find_idev+0x102/0x170
[ 2971.297993][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2971.297993][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2971.297993][   T73]      netlink_rcv_skb+0x130/0x360
[ 2971.297993][   T73]      netlink_unicast+0x449/0x710
[ 2971.297993][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2971.297993][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2971.297993][   T73]      ___sys_sendmsg+0xee/0x170
[ 2971.297993][   T73]      __sys_sendmsg+0xcd/0x170
[ 2971.297993][   T73]      do_syscall_64+0xc6/0x1e0
[ 2971.297993][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2971.297993][   T73] 
[ 2981.399732][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2981.400181][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2981.400181][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2981.400181][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2981.400181][   T73]      fib6_nh_init+0xa22/0x1580
[ 2981.400181][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2981.400181][   T73]      ip6_route_add+0x1c/0x140
[ 2981.400181][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2981.400181][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2981.400181][   T73]      netlink_rcv_skb+0x130/0x360
[ 2981.400181][   T73]      netlink_unicast+0x449/0x710
[ 2981.400181][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2981.400181][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2981.400181][   T73]      ___sys_sendmsg+0xee/0x170
[ 2981.400181][   T73]      __sys_sendmsg+0xcd/0x170
[ 2981.400181][   T73]      do_syscall_64+0xc6/0x1e0
[ 2981.400181][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2981.400181][   T73] 
[ 2981.402293][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2981.402293][   T73]      dst_init+0x84/0x4a0
[ 2981.402293][   T73]      dst_alloc+0x97/0x150
[ 2981.402293][   T73]      ip6_dst_alloc+0x23/0x90
[ 2981.402293][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2981.402293][   T73]      ip6_pol_route+0x56f/0x840
[ 2981.402293][   T73]      fib6_rule_lookup+0x456/0x630
[ 2981.402293][   T73]      ip6_route_input+0x59c/0xa50
[ 2981.402293][   T73]      ipv6_rcv+0x397/0x810
[ 2981.402293][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2981.402293][   T73]      process_backlog+0x101/0x620
[ 2981.402293][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2981.402293][   T73]      net_rx_action+0x495/0xbe0
[ 2981.402293][   T73]      __do_softirq+0x1b5/0x7f6
[ 2981.402293][   T73] 
[ 2981.404094][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2981.404094][   T73]      netdev_get_by_index+0x5e/0x80
[ 2981.404094][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2981.404094][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2981.404094][   T73]      ip6_route_add+0x1c/0x140
[ 2981.404094][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2981.404094][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2981.404094][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2981.404094][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2981.404094][   T73]      netlink_rcv_skb+0x130/0x360
[ 2981.404094][   T73]      netlink_unicast+0x449/0x710
[ 2981.404094][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2981.404094][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2981.404094][   T73]      ___sys_sendmsg+0xee/0x170
[ 2981.404094][   T73]      __sys_sendmsg+0xcd/0x170
[ 2981.404094][   T73]      do_syscall_64+0xc6/0x1e0
[ 2981.404094][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2981.404094][   T73] 
[ 2981.406433][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2981.406433][   T73]      netdev_get_by_index+0x5e/0x80
[ 2981.406433][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2981.406433][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2981.406433][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2981.406433][   T73]      ipv6_add_addr+0x411/0x2000
[ 2981.406433][   T73]      inet6_addr_add+0x30e/0xa40
[ 2981.406433][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2981.406433][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2981.406433][   T73]      netlink_rcv_skb+0x130/0x360
[ 2981.406433][   T73]      netlink_unicast+0x449/0x710
[ 2981.406433][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2981.406433][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2981.406433][   T73]      ___sys_sendmsg+0xee/0x170
[ 2981.406433][   T73]      __sys_sendmsg+0xcd/0x170
[ 2981.406433][   T73]      do_syscall_64+0xc6/0x1e0
[ 2981.406433][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2981.406433][   T73] 
[ 2981.408616][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2981.408616][   T73]      netdev_get_by_index+0x5e/0x80
[ 2981.408616][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2981.408616][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2981.408616][   T73]      ip6_route_add+0x1c/0x140
[ 2981.408616][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2981.408616][   T73]      addrconf_add_dev+0xe2/0x170
[ 2981.408616][   T73]      inet6_addr_add+0x12f/0xa40
[ 2981.408616][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2981.408616][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2981.408616][   T73]      netlink_rcv_skb+0x130/0x360
[ 2981.408616][   T73]      netlink_unicast+0x449/0x710
[ 2981.408616][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2981.408616][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2981.408616][   T73]      ___sys_sendmsg+0xee/0x170
[ 2981.408616][   T73]      __sys_sendmsg+0xcd/0x170
[ 2981.408616][   T73]      do_syscall_64+0xc6/0x1e0
[ 2981.408616][   T73] 
[ 2981.410782][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2981.410782][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2981.410782][   T73]      ipv6_find_idev+0x102/0x170
[ 2981.410782][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2981.410782][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2981.410782][   T73]      netlink_rcv_skb+0x130/0x360
[ 2981.410782][   T73]      netlink_unicast+0x449/0x710
[ 2981.410782][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2981.410782][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2981.410782][   T73]      ___sys_sendmsg+0xee/0x170
[ 2981.410782][   T73]      __sys_sendmsg+0xcd/0x170
[ 2981.410782][   T73]      do_syscall_64+0xc6/0x1e0
[ 2981.410782][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2981.410782][   T73] 
[ 2981.412465][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2981.412465][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2981.412465][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2981.412465][   T73]      ipv6_find_idev+0x102/0x170
[ 2981.412465][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2981.412465][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2981.412465][   T73]      netlink_rcv_skb+0x130/0x360
[ 2981.412465][   T73]      netlink_unicast+0x449/0x710
[ 2981.412465][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2981.412465][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2981.412465][   T73]      ___sys_sendmsg+0xee/0x170
[ 2981.412465][   T73]      __sys_sendmsg+0xcd/0x170
[ 2981.412465][   T73]      do_syscall_64+0xc6/0x1e0
[ 2981.412465][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2981.412465][   T73] 
[ 2981.414288][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2981.414586][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2981.414586][   T73]      netdev_get_by_index+0x5e/0x80
[ 2981.414586][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2981.414586][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2981.414586][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2981.414586][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2981.414586][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2981.414586][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2981.414586][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2981.414586][   T73]      addrconf_dad_begin+0x310/0x670
[ 2981.414586][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2981.414586][   T73]      process_one_work+0x84d/0x18a0
[ 2981.414586][   T73]      worker_thread+0x587/0xd30
[ 2981.414586][   T73]      kthread+0x28a/0x350
[ 2981.414586][   T73]      ret_from_fork+0x31/0x70
[ 2981.414586][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2981.414586][   T73] 
[ 2981.416643][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2981.416643][   T73]      netdev_get_by_index+0x5e/0x80
[ 2981.416643][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2981.416643][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2981.416643][   T73]      ip6_route_add+0x1c/0x140
[ 2981.416643][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2981.416643][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2981.416643][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2981.416643][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2981.416643][   T73]      netlink_rcv_skb+0x130/0x360
[ 2981.416643][   T73]      netlink_unicast+0x449/0x710
[ 2981.416643][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2981.416643][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2981.416643][   T73]      ___sys_sendmsg+0xee/0x170
[ 2981.416643][   T73]      __sys_sendmsg+0xcd/0x170
[ 2981.416643][   T73]      do_syscall_64+0xc6/0x1e0
[ 2981.416643][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2981.416643][   T73] 
[ 2981.418804][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2981.418804][   T73]      netdev_get_by_index+0x5e/0x80
[ 2981.418804][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2981.418804][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2981.418804][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2981.418804][   T73]      ipv6_add_addr+0x411/0x2000
[ 2981.418804][   T73]      inet6_addr_add+0x30e/0xa40
[ 2981.418804][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2981.418804][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2981.418804][   T73]      netlink_rcv_skb+0x130/0x360
[ 2981.418804][   T73]      netlink_unicast+0x449/0x710
[ 2981.418804][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2981.418804][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2981.418804][   T73]      ___sys_sendmsg+0xee/0x170
[ 2981.418804][   T73]      __sys_sendmsg+0xcd/0x170
[ 2981.418804][   T73]      do_syscall_64+0xc6/0x1e0
[ 2981.418804][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2981.418804][   T73] 
[ 2981.421009][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2981.421009][   T73]      netdev_get_by_index+0x5e/0x80
[ 2981.421009][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2981.421009][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2981.421009][   T73]      ip6_route_add+0x1c/0x140
[ 2981.421009][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2981.421009][   T73]      addrconf_add_dev+0xe2/0x170
[ 2981.421009][   T73]      inet6_addr_add+0x12f/0xa40
[ 2981.421009][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2981.421009][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2981.421009][   T73]      netlink_rcv_skb+0x130/0x360
[ 2981.421009][   T73]      netlink_unicast+0x449/0x710
[ 2981.421009][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2981.421009][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2981.421009][   T73]      ___sys_sendmsg+0xee/0x170
[ 2981.421009][   T73]      __sys_sendmsg+0xcd/0x170
[ 2981.421009][   T73]      do_syscall_64+0xc6/0x1e0
[ 2981.421009][   T73] 
[ 2981.423156][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2981.423156][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2981.423156][   T73]      ipv6_find_idev+0x102/0x170
[ 2981.423156][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2981.423156][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2981.423156][   T73]      netlink_rcv_skb+0x130/0x360
[ 2981.423156][   T73]      netlink_unicast+0x449/0x710
[ 2981.423156][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2981.423156][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2981.423156][   T73]      ___sys_sendmsg+0xee/0x170
[ 2981.423156][   T73]      __sys_sendmsg+0xcd/0x170
[ 2981.423156][   T73]      do_syscall_64+0xc6/0x1e0
[ 2981.423156][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2981.423156][   T73] 
[ 2981.424846][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2981.424846][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2981.424846][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2981.424846][   T73]      ipv6_find_idev+0x102/0x170
[ 2981.424846][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2981.424846][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2981.424846][   T73]      netlink_rcv_skb+0x130/0x360
[ 2981.424846][   T73]      netlink_unicast+0x449/0x710
[ 2981.424846][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2981.424846][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2981.424846][   T73]      ___sys_sendmsg+0xee/0x170
[ 2981.424846][   T73]      __sys_sendmsg+0xcd/0x170
[ 2981.424846][   T73]      do_syscall_64+0xc6/0x1e0
[ 2981.424846][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2981.424846][   T73] 
[ 2981.426676][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2981.426967][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2981.426967][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2981.426967][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2981.426967][   T73]      fib6_nh_init+0xa22/0x1580
[ 2981.426967][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2981.426967][   T73]      ip6_route_add+0x1c/0x140
[ 2981.426967][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2981.426967][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2981.426967][   T73]      netlink_rcv_skb+0x130/0x360
[ 2981.426967][   T73]      netlink_unicast+0x449/0x710
[ 2981.426967][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2981.426967][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2981.426967][   T73]      ___sys_sendmsg+0xee/0x170
[ 2981.426967][   T73]      __sys_sendmsg+0xcd/0x170
[ 2981.426967][   T73]      do_syscall_64+0xc6/0x1e0
[ 2981.426967][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2981.426967][   T73] 
[ 2981.429099][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2981.429099][   T73]      dst_init+0x84/0x4a0
[ 2981.429099][   T73]      dst_alloc+0x97/0x150
[ 2981.429099][   T73]      ip6_dst_alloc+0x23/0x90
[ 2981.429099][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2981.429099][   T73]      ip6_pol_route+0x56f/0x840
[ 2981.429099][   T73]      fib6_rule_lookup+0x456/0x630
[ 2981.429099][   T73]      ip6_route_input+0x59c/0xa50
[ 2981.429099][   T73]      ipv6_rcv+0x397/0x810
[ 2981.429099][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2981.429099][   T73]      process_backlog+0x101/0x620
[ 2981.429099][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2981.429099][   T73]      net_rx_action+0x495/0xbe0
[ 2981.429099][   T73]      __do_softirq+0x1b5/0x7f6
[ 2981.429099][   T73] 
[ 2981.430973][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2981.430973][   T73]      netdev_get_by_index+0x5e/0x80
[ 2981.430973][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2981.430973][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2981.430973][   T73]      ip6_route_add+0x1c/0x140
[ 2981.430973][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2981.430973][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2981.430973][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2981.430973][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2981.430973][   T73]      netlink_rcv_skb+0x130/0x360
[ 2981.430973][   T73]      netlink_unicast+0x449/0x710
[ 2981.430973][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2981.430973][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2981.430973][   T73]      ___sys_sendmsg+0xee/0x170
[ 2981.430973][   T73]      __sys_sendmsg+0xcd/0x170
[ 2981.430973][   T73]      do_syscall_64+0xc6/0x1e0
[ 2981.430973][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2981.430973][   T73] 
[ 2981.433300][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2981.433300][   T73]      netdev_get_by_index+0x5e/0x80
[ 2981.433300][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2981.433300][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2981.433300][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2981.433300][   T73]      ipv6_add_addr+0x411/0x2000
[ 2981.433300][   T73]      inet6_addr_add+0x30e/0xa40
[ 2981.433300][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2981.433300][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2981.433300][   T73]      netlink_rcv_skb+0x130/0x360
[ 2981.433300][   T73]      netlink_unicast+0x449/0x710
[ 2981.433300][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2981.433300][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2981.433300][   T73]      ___sys_sendmsg+0xee/0x170
[ 2981.433300][   T73]      __sys_sendmsg+0xcd/0x170
[ 2981.433300][   T73]      do_syscall_64+0xc6/0x1e0
[ 2981.433300][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2981.433300][   T73] 
[ 2981.435553][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2981.435553][   T73]      netdev_get_by_index+0x5e/0x80
[ 2981.435553][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2981.435553][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2981.435553][   T73]      ip6_route_add+0x1c/0x140
[ 2981.435553][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2981.435553][   T73]      addrconf_add_dev+0xe2/0x170
[ 2981.435553][   T73]      inet6_addr_add+0x12f/0xa40
[ 2981.435553][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2981.435553][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2981.435553][   T73]      netlink_rcv_skb+0x130/0x360
[ 2981.435553][   T73]      netlink_unicast+0x449/0x710
[ 2981.435553][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2981.435553][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2981.435553][   T73]      ___sys_sendmsg+0xee/0x170
[ 2981.435553][   T73]      __sys_sendmsg+0xcd/0x170
[ 2981.435553][   T73]      do_syscall_64+0xc6/0x1e0
[ 2981.435553][   T73] 
[ 2981.437778][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2981.437778][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2981.437778][   T73]      ipv6_find_idev+0x102/0x170
[ 2981.437778][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2981.437778][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2981.437778][   T73]      netlink_rcv_skb+0x130/0x360
[ 2981.437778][   T73]      netlink_unicast+0x449/0x710
[ 2981.437778][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2981.437778][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2981.437778][   T73]      ___sys_sendmsg+0xee/0x170
[ 2981.437778][   T73]      __sys_sendmsg+0xcd/0x170
[ 2981.437778][   T73]      do_syscall_64+0xc6/0x1e0
[ 2981.437778][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2981.437778][   T73] 
[ 2981.439508][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2981.439508][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2981.439508][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2981.439508][   T73]      ipv6_find_idev+0x102/0x170
[ 2981.439508][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2981.439508][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2981.439508][   T73]      netlink_rcv_skb+0x130/0x360
[ 2981.439508][   T73]      netlink_unicast+0x449/0x710
[ 2981.439508][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2981.439508][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2981.439508][   T73]      ___sys_sendmsg+0xee/0x170
[ 2981.439508][   T73]      __sys_sendmsg+0xcd/0x170
[ 2981.439508][   T73]      do_syscall_64+0xc6/0x1e0
[ 2981.439508][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2981.439508][   T73] 
[ 2981.441405][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2981.442189][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2981.442189][   T73]      netdev_get_by_index+0x5e/0x80
[ 2981.442189][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2981.442189][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2981.442189][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2981.442189][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2981.442189][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2981.442189][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2981.442189][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2981.442189][   T73]      addrconf_dad_begin+0x310/0x670
[ 2981.442189][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2981.442189][   T73]      process_one_work+0x84d/0x18a0
[ 2981.442189][   T73]      worker_thread+0x587/0xd30
[ 2981.442189][   T73]      kthread+0x28a/0x350
[ 2981.442189][   T73]      ret_from_fork+0x31/0x70
[ 2981.442189][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2981.442189][   T73] 
[ 2981.444269][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2981.444269][   T73]      netdev_get_by_index+0x5e/0x80
[ 2981.444269][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2981.444269][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2981.444269][   T73]      ip6_route_add+0x1c/0x140
[ 2981.444269][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2981.444269][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2981.444269][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2981.444269][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2981.444269][   T73]      netlink_rcv_skb+0x130/0x360
[ 2981.444269][   T73]      netlink_unicast+0x449/0x710
[ 2981.444269][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2981.444269][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2981.444269][   T73]      ___sys_sendmsg+0xee/0x170
[ 2981.444269][   T73]      __sys_sendmsg+0xcd/0x170
[ 2981.444269][   T73]      do_syscall_64+0xc6/0x1e0
[ 2981.444269][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2981.444269][   T73] 
[ 2981.446477][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2981.446477][   T73]      netdev_get_by_index+0x5e/0x80
[ 2981.446477][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2981.446477][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2981.446477][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2981.446477][   T73]      ipv6_add_addr+0x411/0x2000
[ 2981.446477][   T73]      inet6_addr_add+0x30e/0xa40
[ 2981.446477][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2981.446477][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2981.446477][   T73]      netlink_rcv_skb+0x130/0x360
[ 2981.446477][   T73]      netlink_unicast+0x449/0x710
[ 2981.446477][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2981.446477][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2981.446477][   T73]      ___sys_sendmsg+0xee/0x170
[ 2981.446477][   T73]      __sys_sendmsg+0xcd/0x170
[ 2981.446477][   T73]      do_syscall_64+0xc6/0x1e0
[ 2981.446477][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2981.446477][   T73] 
[ 2981.448743][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2981.448743][   T73]      netdev_get_by_index+0x5e/0x80
[ 2981.448743][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2981.448743][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2981.448743][   T73]      ip6_route_add+0x1c/0x140
[ 2981.448743][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2981.448743][   T73]      addrconf_add_dev+0xe2/0x170
[ 2981.448743][   T73]      inet6_addr_add+0x12f/0xa40
[ 2981.448743][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2981.448743][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2981.448743][   T73]      netlink_rcv_skb+0x130/0x360
[ 2981.448743][   T73]      netlink_unicast+0x449/0x710
[ 2981.448743][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2981.448743][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2981.448743][   T73]      ___sys_sendmsg+0xee/0x170
[ 2981.448743][   T73]      __sys_sendmsg+0xcd/0x170
[ 2981.448743][   T73]      do_syscall_64+0xc6/0x1e0
[ 2981.448743][   T73] 
[ 2981.451041][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2981.451041][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2981.451041][   T73]      ipv6_find_idev+0x102/0x170
[ 2981.451041][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2981.451041][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2981.451041][   T73]      netlink_rcv_skb+0x130/0x360
[ 2981.451041][   T73]      netlink_unicast+0x449/0x710
[ 2981.451041][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2981.451041][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2981.451041][   T73]      ___sys_sendmsg+0xee/0x170
[ 2981.451041][   T73]      __sys_sendmsg+0xcd/0x170
[ 2981.451041][   T73]      do_syscall_64+0xc6/0x1e0
[ 2981.451041][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2981.451041][   T73] 
[ 2981.452804][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2981.452804][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2981.452804][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2981.452804][   T73]      ipv6_find_idev+0x102/0x170
[ 2981.452804][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2981.452804][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2981.452804][   T73]      netlink_rcv_skb+0x130/0x360
[ 2981.452804][   T73]      netlink_unicast+0x449/0x710
[ 2981.452804][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2981.452804][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2981.452804][   T73]      ___sys_sendmsg+0xee/0x170
[ 2981.452804][   T73]      __sys_sendmsg+0xcd/0x170
[ 2981.452804][   T73]      do_syscall_64+0xc6/0x1e0
[ 2981.452804][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2981.452804][   T73] 
[ 2991.703723][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 2991.704177][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2991.704177][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2991.704177][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2991.704177][   T73]      fib6_nh_init+0xa22/0x1580
[ 2991.704177][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2991.704177][   T73]      ip6_route_add+0x1c/0x140
[ 2991.704177][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2991.704177][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2991.704177][   T73]      netlink_rcv_skb+0x130/0x360
[ 2991.704177][   T73]      netlink_unicast+0x449/0x710
[ 2991.704177][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2991.704177][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2991.704177][   T73]      ___sys_sendmsg+0xee/0x170
[ 2991.704177][   T73]      __sys_sendmsg+0xcd/0x170
[ 2991.704177][   T73]      do_syscall_64+0xc6/0x1e0
[ 2991.704177][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2991.704177][   T73] 
[ 2991.706104][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 2991.706104][   T73]      dst_init+0x84/0x4a0
[ 2991.706104][   T73]      dst_alloc+0x97/0x150
[ 2991.706104][   T73]      ip6_dst_alloc+0x23/0x90
[ 2991.706104][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2991.706104][   T73]      ip6_pol_route+0x56f/0x840
[ 2991.706104][   T73]      fib6_rule_lookup+0x456/0x630
[ 2991.706104][   T73]      ip6_route_input+0x59c/0xa50
[ 2991.706104][   T73]      ipv6_rcv+0x397/0x810
[ 2991.706104][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2991.706104][   T73]      process_backlog+0x101/0x620
[ 2991.706104][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2991.706104][   T73]      net_rx_action+0x495/0xbe0
[ 2991.706104][   T73]      __do_softirq+0x1b5/0x7f6
[ 2991.706104][   T73] 
[ 2991.707822][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2991.707822][   T73]      netdev_get_by_index+0x5e/0x80
[ 2991.707822][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2991.707822][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2991.707822][   T73]      ip6_route_add+0x1c/0x140
[ 2991.707822][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2991.707822][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2991.707822][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2991.707822][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2991.707822][   T73]      netlink_rcv_skb+0x130/0x360
[ 2991.707822][   T73]      netlink_unicast+0x449/0x710
[ 2991.707822][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2991.707822][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2991.707822][   T73]      ___sys_sendmsg+0xee/0x170
[ 2991.707822][   T73]      __sys_sendmsg+0xcd/0x170
[ 2991.707822][   T73]      do_syscall_64+0xc6/0x1e0
[ 2991.707822][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2991.707822][   T73] 
[ 2991.709864][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2991.709864][   T73]      netdev_get_by_index+0x5e/0x80
[ 2991.709864][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2991.709864][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2991.709864][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2991.709864][   T73]      ipv6_add_addr+0x411/0x2000
[ 2991.709864][   T73]      inet6_addr_add+0x30e/0xa40
[ 2991.709864][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2991.709864][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2991.709864][   T73]      netlink_rcv_skb+0x130/0x360
[ 2991.709864][   T73]      netlink_unicast+0x449/0x710
[ 2991.709864][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2991.709864][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2991.709864][   T73]      ___sys_sendmsg+0xee/0x170
[ 2991.709864][   T73]      __sys_sendmsg+0xcd/0x170
[ 2991.709864][   T73]      do_syscall_64+0xc6/0x1e0
[ 2991.709864][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2991.709864][   T73] 
[ 2991.711900][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2991.711900][   T73]      netdev_get_by_index+0x5e/0x80
[ 2991.711900][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2991.711900][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2991.711900][   T73]      ip6_route_add+0x1c/0x140
[ 2991.711900][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2991.711900][   T73]      addrconf_add_dev+0xe2/0x170
[ 2991.711900][   T73]      inet6_addr_add+0x12f/0xa40
[ 2991.711900][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2991.711900][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2991.711900][   T73]      netlink_rcv_skb+0x130/0x360
[ 2991.711900][   T73]      netlink_unicast+0x449/0x710
[ 2991.711900][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2991.711900][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2991.711900][   T73]      ___sys_sendmsg+0xee/0x170
[ 2991.711900][   T73]      __sys_sendmsg+0xcd/0x170
[ 2991.711900][   T73]      do_syscall_64+0xc6/0x1e0
[ 2991.711900][   T73] 
[ 2991.713901][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2991.713901][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2991.713901][   T73]      ipv6_find_idev+0x102/0x170
[ 2991.713901][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2991.713901][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2991.713901][   T73]      netlink_rcv_skb+0x130/0x360
[ 2991.713901][   T73]      netlink_unicast+0x449/0x710
[ 2991.713901][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2991.713901][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2991.713901][   T73]      ___sys_sendmsg+0xee/0x170
[ 2991.713901][   T73]      __sys_sendmsg+0xcd/0x170
[ 2991.713901][   T73]      do_syscall_64+0xc6/0x1e0
[ 2991.713901][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2991.713901][   T73] 
[ 2991.715469][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 2991.715469][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2991.715469][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2991.715469][   T73]      ipv6_find_idev+0x102/0x170
[ 2991.715469][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2991.715469][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2991.715469][   T73]      netlink_rcv_skb+0x130/0x360
[ 2991.715469][   T73]      netlink_unicast+0x449/0x710
[ 2991.715469][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2991.715469][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2991.715469][   T73]      ___sys_sendmsg+0xee/0x170
[ 2991.715469][   T73]      __sys_sendmsg+0xcd/0x170
[ 2991.715469][   T73]      do_syscall_64+0xc6/0x1e0
[ 2991.715469][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2991.715469][   T73] 
[ 2991.717200][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 2991.717492][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2991.717492][   T73]      netdev_get_by_index+0x5e/0x80
[ 2991.717492][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2991.717492][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2991.717492][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2991.717492][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2991.717492][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2991.717492][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2991.717492][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2991.717492][   T73]      addrconf_dad_begin+0x310/0x670
[ 2991.717492][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2991.717492][   T73]      process_one_work+0x84d/0x18a0
[ 2991.717492][   T73]      worker_thread+0x587/0xd30
[ 2991.717492][   T73]      kthread+0x28a/0x350
[ 2991.717492][   T73]      ret_from_fork+0x31/0x70
[ 2991.717492][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2991.717492][   T73] 
[ 2991.719419][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2991.719419][   T73]      netdev_get_by_index+0x5e/0x80
[ 2991.719419][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2991.719419][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2991.719419][   T73]      ip6_route_add+0x1c/0x140
[ 2991.719419][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2991.719419][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2991.719419][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2991.719419][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2991.719419][   T73]      netlink_rcv_skb+0x130/0x360
[ 2991.719419][   T73]      netlink_unicast+0x449/0x710
[ 2991.719419][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2991.719419][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2991.719419][   T73]      ___sys_sendmsg+0xee/0x170
[ 2991.719419][   T73]      __sys_sendmsg+0xcd/0x170
[ 2991.719419][   T73]      do_syscall_64+0xc6/0x1e0
[ 2991.719419][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2991.719419][   T73] 
[ 2991.721449][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2991.721449][   T73]      netdev_get_by_index+0x5e/0x80
[ 2991.721449][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2991.721449][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2991.721449][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2991.721449][   T73]      ipv6_add_addr+0x411/0x2000
[ 2991.721449][   T73]      inet6_addr_add+0x30e/0xa40
[ 2991.721449][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2991.721449][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2991.721449][   T73]      netlink_rcv_skb+0x130/0x360
[ 2991.721449][   T73]      netlink_unicast+0x449/0x710
[ 2991.721449][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2991.721449][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2991.721449][   T73]      ___sys_sendmsg+0xee/0x170
[ 2991.721449][   T73]      __sys_sendmsg+0xcd/0x170
[ 2991.721449][   T73]      do_syscall_64+0xc6/0x1e0
[ 2991.721449][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2991.721449][   T73] 
[ 2991.723493][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2991.723493][   T73]      netdev_get_by_index+0x5e/0x80
[ 2991.723493][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2991.723493][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2991.723493][   T73]      ip6_route_add+0x1c/0x140
[ 2991.723493][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2991.723493][   T73]      addrconf_add_dev+0xe2/0x170
[ 2991.723493][   T73]      inet6_addr_add+0x12f/0xa40
[ 2991.723493][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2991.723493][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2991.723493][   T73]      netlink_rcv_skb+0x130/0x360
[ 2991.723493][   T73]      netlink_unicast+0x449/0x710
[ 2991.723493][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2991.723493][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2991.723493][   T73]      ___sys_sendmsg+0xee/0x170
[ 2991.723493][   T73]      __sys_sendmsg+0xcd/0x170
[ 2991.723493][   T73]      do_syscall_64+0xc6/0x1e0
[ 2991.723493][   T73] 
[ 2991.725478][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2991.725478][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2991.725478][   T73]      ipv6_find_idev+0x102/0x170
[ 2991.725478][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2991.725478][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2991.725478][   T73]      netlink_rcv_skb+0x130/0x360
[ 2991.725478][   T73]      netlink_unicast+0x449/0x710
[ 2991.725478][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2991.725478][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2991.725478][   T73]      ___sys_sendmsg+0xee/0x170
[ 2991.725478][   T73]      __sys_sendmsg+0xcd/0x170
[ 2991.725478][   T73]      do_syscall_64+0xc6/0x1e0
[ 2991.725478][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2991.725478][   T73] 
[ 2991.727042][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 2991.727042][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2991.727042][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2991.727042][   T73]      ipv6_find_idev+0x102/0x170
[ 2991.727042][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2991.727042][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2991.727042][   T73]      netlink_rcv_skb+0x130/0x360
[ 2991.727042][   T73]      netlink_unicast+0x449/0x710
[ 2991.727042][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2991.727042][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2991.727042][   T73]      ___sys_sendmsg+0xee/0x170
[ 2991.727042][   T73]      __sys_sendmsg+0xcd/0x170
[ 2991.727042][   T73]      do_syscall_64+0xc6/0x1e0
[ 2991.727042][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2991.727042][   T73] 
[ 2991.728751][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 2991.729032][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2991.729032][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 2991.729032][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 2991.729032][   T73]      fib6_nh_init+0xa22/0x1580
[ 2991.729032][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2991.729032][   T73]      ip6_route_add+0x1c/0x140
[ 2991.729032][   T73]      inet6_rtm_newroute+0x104/0x110
[ 2991.729032][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2991.729032][   T73]      netlink_rcv_skb+0x130/0x360
[ 2991.729032][   T73]      netlink_unicast+0x449/0x710
[ 2991.729032][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2991.729032][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2991.729032][   T73]      ___sys_sendmsg+0xee/0x170
[ 2991.729032][   T73]      __sys_sendmsg+0xcd/0x170
[ 2991.729032][   T73]      do_syscall_64+0xc6/0x1e0
[ 2991.729032][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2991.729032][   T73] 
[ 2991.731145][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 2991.731145][   T73]      dst_init+0x84/0x4a0
[ 2991.731145][   T73]      dst_alloc+0x97/0x150
[ 2991.731145][   T73]      ip6_dst_alloc+0x23/0x90
[ 2991.731145][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 2991.731145][   T73]      ip6_pol_route+0x56f/0x840
[ 2991.731145][   T73]      fib6_rule_lookup+0x456/0x630
[ 2991.731145][   T73]      ip6_route_input+0x59c/0xa50
[ 2991.731145][   T73]      ipv6_rcv+0x397/0x810
[ 2991.731145][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 2991.731145][   T73]      process_backlog+0x101/0x620
[ 2991.731145][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 2991.731145][   T73]      net_rx_action+0x495/0xbe0
[ 2991.731145][   T73]      __do_softirq+0x1b5/0x7f6
[ 2991.731145][   T73] 
[ 2991.732992][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2991.732992][   T73]      netdev_get_by_index+0x5e/0x80
[ 2991.732992][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2991.732992][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2991.732992][   T73]      ip6_route_add+0x1c/0x140
[ 2991.732992][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2991.732992][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2991.732992][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2991.732992][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2991.732992][   T73]      netlink_rcv_skb+0x130/0x360
[ 2991.732992][   T73]      netlink_unicast+0x449/0x710
[ 2991.732992][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2991.732992][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2991.732992][   T73]      ___sys_sendmsg+0xee/0x170
[ 2991.732992][   T73]      __sys_sendmsg+0xcd/0x170
[ 2991.732992][   T73]      do_syscall_64+0xc6/0x1e0
[ 2991.732992][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2991.732992][   T73] 
[ 2991.735300][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2991.735300][   T73]      netdev_get_by_index+0x5e/0x80
[ 2991.735300][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2991.735300][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2991.735300][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2991.735300][   T73]      ipv6_add_addr+0x411/0x2000
[ 2991.735300][   T73]      inet6_addr_add+0x30e/0xa40
[ 2991.735300][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2991.735300][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2991.735300][   T73]      netlink_rcv_skb+0x130/0x360
[ 2991.735300][   T73]      netlink_unicast+0x449/0x710
[ 2991.735300][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2991.735300][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2991.735300][   T73]      ___sys_sendmsg+0xee/0x170
[ 2991.735300][   T73]      __sys_sendmsg+0xcd/0x170
[ 2991.735300][   T73]      do_syscall_64+0xc6/0x1e0
[ 2991.735300][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2991.735300][   T73] 
[ 2991.737551][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2991.737551][   T73]      netdev_get_by_index+0x5e/0x80
[ 2991.737551][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2991.737551][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2991.737551][   T73]      ip6_route_add+0x1c/0x140
[ 2991.737551][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2991.737551][   T73]      addrconf_add_dev+0xe2/0x170
[ 2991.737551][   T73]      inet6_addr_add+0x12f/0xa40
[ 2991.737551][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2991.737551][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2991.737551][   T73]      netlink_rcv_skb+0x130/0x360
[ 2991.737551][   T73]      netlink_unicast+0x449/0x710
[ 2991.737551][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2991.737551][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2991.737551][   T73]      ___sys_sendmsg+0xee/0x170
[ 2991.737551][   T73]      __sys_sendmsg+0xcd/0x170
[ 2991.737551][   T73]      do_syscall_64+0xc6/0x1e0
[ 2991.737551][   T73] 
[ 2991.739715][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2991.739715][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2991.739715][   T73]      ipv6_find_idev+0x102/0x170
[ 2991.739715][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2991.739715][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2991.739715][   T73]      netlink_rcv_skb+0x130/0x360
[ 2991.739715][   T73]      netlink_unicast+0x449/0x710
[ 2991.739715][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2991.739715][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2991.739715][   T73]      ___sys_sendmsg+0xee/0x170
[ 2991.739715][   T73]      __sys_sendmsg+0xcd/0x170
[ 2991.739715][   T73]      do_syscall_64+0xc6/0x1e0
[ 2991.739715][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2991.739715][   T73] 
[ 2991.741470][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 2991.741470][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2991.741470][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2991.741470][   T73]      ipv6_find_idev+0x102/0x170
[ 2991.741470][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2991.741470][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2991.741470][   T73]      netlink_rcv_skb+0x130/0x360
[ 2991.741470][   T73]      netlink_unicast+0x449/0x710
[ 2991.741470][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2991.741470][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2991.741470][   T73]      ___sys_sendmsg+0xee/0x170
[ 2991.741470][   T73]      __sys_sendmsg+0xcd/0x170
[ 2991.741470][   T73]      do_syscall_64+0xc6/0x1e0
[ 2991.741470][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2991.741470][   T73] 
[ 2991.743486][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 2991.744216][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2991.744216][   T73]      netdev_get_by_index+0x5e/0x80
[ 2991.744216][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2991.744216][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2991.744216][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 2991.744216][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 2991.744216][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 2991.744216][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 2991.744216][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 2991.744216][   T73]      addrconf_dad_begin+0x310/0x670
[ 2991.744216][   T73]      addrconf_dad_work+0x10b/0xab0
[ 2991.744216][   T73]      process_one_work+0x84d/0x18a0
[ 2991.744216][   T73]      worker_thread+0x587/0xd30
[ 2991.744216][   T73]      kthread+0x28a/0x350
[ 2991.744216][   T73]      ret_from_fork+0x31/0x70
[ 2991.744216][   T73]      ret_from_fork_asm+0x1a/0x30
[ 2991.744216][   T73] 
[ 2991.746156][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2991.746156][   T73]      netdev_get_by_index+0x5e/0x80
[ 2991.746156][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2991.746156][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2991.746156][   T73]      ip6_route_add+0x1c/0x140
[ 2991.746156][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 2991.746156][   T73]      inet6_addr_add+0x4f8/0xa40
[ 2991.746156][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2991.746156][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2991.746156][   T73]      netlink_rcv_skb+0x130/0x360
[ 2991.746156][   T73]      netlink_unicast+0x449/0x710
[ 2991.746156][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2991.746156][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2991.746156][   T73]      ___sys_sendmsg+0xee/0x170
[ 2991.746156][   T73]      __sys_sendmsg+0xcd/0x170
[ 2991.746156][   T73]      do_syscall_64+0xc6/0x1e0
[ 2991.746156][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2991.746156][   T73] 
[ 2991.748315][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2991.748315][   T73]      netdev_get_by_index+0x5e/0x80
[ 2991.748315][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2991.748315][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2991.748315][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 2991.748315][   T73]      ipv6_add_addr+0x411/0x2000
[ 2991.748315][   T73]      inet6_addr_add+0x30e/0xa40
[ 2991.748315][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2991.748315][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2991.748315][   T73]      netlink_rcv_skb+0x130/0x360
[ 2991.748315][   T73]      netlink_unicast+0x449/0x710
[ 2991.748315][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2991.748315][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2991.748315][   T73]      ___sys_sendmsg+0xee/0x170
[ 2991.748315][   T73]      __sys_sendmsg+0xcd/0x170
[ 2991.748315][   T73]      do_syscall_64+0xc6/0x1e0
[ 2991.748315][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2991.748315][   T73] 
[ 2991.750572][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2991.750572][   T73]      netdev_get_by_index+0x5e/0x80
[ 2991.750572][   T73]      fib6_nh_init+0x3d8/0x1580
[ 2991.750572][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 2991.750572][   T73]      ip6_route_add+0x1c/0x140
[ 2991.750572][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 2991.750572][   T73]      addrconf_add_dev+0xe2/0x170
[ 2991.750572][   T73]      inet6_addr_add+0x12f/0xa40
[ 2991.750572][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 2991.750572][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2991.750572][   T73]      netlink_rcv_skb+0x130/0x360
[ 2991.750572][   T73]      netlink_unicast+0x449/0x710
[ 2991.750572][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2991.750572][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2991.750572][   T73]      ___sys_sendmsg+0xee/0x170
[ 2991.750572][   T73]      __sys_sendmsg+0xcd/0x170
[ 2991.750572][   T73]      do_syscall_64+0xc6/0x1e0
[ 2991.750572][   T73] 
[ 2991.752733][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2991.752733][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 2991.752733][   T73]      ipv6_find_idev+0x102/0x170
[ 2991.752733][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2991.752733][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2991.752733][   T73]      netlink_rcv_skb+0x130/0x360
[ 2991.752733][   T73]      netlink_unicast+0x449/0x710
[ 2991.752733][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2991.752733][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2991.752733][   T73]      ___sys_sendmsg+0xee/0x170
[ 2991.752733][   T73]      __sys_sendmsg+0xcd/0x170
[ 2991.752733][   T73]      do_syscall_64+0xc6/0x1e0
[ 2991.752733][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2991.752733][   T73] 
[ 2991.754473][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 2991.754473][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 2991.754473][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 2991.754473][   T73]      ipv6_find_idev+0x102/0x170
[ 2991.754473][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 2991.754473][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 2991.754473][   T73]      netlink_rcv_skb+0x130/0x360
[ 2991.754473][   T73]      netlink_unicast+0x449/0x710
[ 2991.754473][   T73]      netlink_sendmsg+0x723/0xbe0
[ 2991.754473][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 2991.754473][   T73]      ___sys_sendmsg+0xee/0x170
[ 2991.754473][   T73]      __sys_sendmsg+0xcd/0x170
[ 2991.754473][   T73]      do_syscall_64+0xc6/0x1e0
[ 2991.754473][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 2991.754473][   T73] 
[ 3001.999808][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3002.000351][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3002.000351][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3002.000351][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3002.000351][   T73]      fib6_nh_init+0xa22/0x1580
[ 3002.000351][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3002.000351][   T73]      ip6_route_add+0x1c/0x140
[ 3002.000351][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3002.000351][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3002.000351][   T73]      netlink_rcv_skb+0x130/0x360
[ 3002.000351][   T73]      netlink_unicast+0x449/0x710
[ 3002.000351][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3002.000351][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3002.000351][   T73]      ___sys_sendmsg+0xee/0x170
[ 3002.000351][   T73]      __sys_sendmsg+0xcd/0x170
[ 3002.000351][   T73]      do_syscall_64+0xc6/0x1e0
[ 3002.000351][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3002.000351][   T73] 
[ 3002.002275][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3002.002275][   T73]      dst_init+0x84/0x4a0
[ 3002.002275][   T73]      dst_alloc+0x97/0x150
[ 3002.002275][   T73]      ip6_dst_alloc+0x23/0x90
[ 3002.002275][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3002.002275][   T73]      ip6_pol_route+0x56f/0x840
[ 3002.002275][   T73]      fib6_rule_lookup+0x456/0x630
[ 3002.002275][   T73]      ip6_route_input+0x59c/0xa50
[ 3002.002275][   T73]      ipv6_rcv+0x397/0x810
[ 3002.002275][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3002.002275][   T73]      process_backlog+0x101/0x620
[ 3002.002275][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3002.002275][   T73]      net_rx_action+0x495/0xbe0
[ 3002.002275][   T73]      __do_softirq+0x1b5/0x7f6
[ 3002.002275][   T73] 
[ 3002.003936][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3002.003936][   T73]      netdev_get_by_index+0x5e/0x80
[ 3002.003936][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3002.003936][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3002.003936][   T73]      ip6_route_add+0x1c/0x140
[ 3002.003936][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3002.003936][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3002.003936][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3002.003936][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3002.003936][   T73]      netlink_rcv_skb+0x130/0x360
[ 3002.003936][   T73]      netlink_unicast+0x449/0x710
[ 3002.003936][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3002.003936][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3002.003936][   T73]      ___sys_sendmsg+0xee/0x170
[ 3002.003936][   T73]      __sys_sendmsg+0xcd/0x170
[ 3002.003936][   T73]      do_syscall_64+0xc6/0x1e0
[ 3002.003936][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3002.003936][   T73] 
[ 3002.005954][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3002.005954][   T73]      netdev_get_by_index+0x5e/0x80
[ 3002.005954][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3002.005954][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3002.005954][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3002.005954][   T73]      ipv6_add_addr+0x411/0x2000
[ 3002.005954][   T73]      inet6_addr_add+0x30e/0xa40
[ 3002.005954][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3002.005954][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3002.005954][   T73]      netlink_rcv_skb+0x130/0x360
[ 3002.005954][   T73]      netlink_unicast+0x449/0x710
[ 3002.005954][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3002.005954][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3002.005954][   T73]      ___sys_sendmsg+0xee/0x170
[ 3002.005954][   T73]      __sys_sendmsg+0xcd/0x170
[ 3002.005954][   T73]      do_syscall_64+0xc6/0x1e0
[ 3002.005954][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3002.005954][   T73] 
[ 3002.007965][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3002.007965][   T73]      netdev_get_by_index+0x5e/0x80
[ 3002.007965][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3002.007965][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3002.007965][   T73]      ip6_route_add+0x1c/0x140
[ 3002.007965][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3002.007965][   T73]      addrconf_add_dev+0xe2/0x170
[ 3002.007965][   T73]      inet6_addr_add+0x12f/0xa40
[ 3002.007965][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3002.007965][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3002.007965][   T73]      netlink_rcv_skb+0x130/0x360
[ 3002.007965][   T73]      netlink_unicast+0x449/0x710
[ 3002.007965][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3002.007965][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3002.007965][   T73]      ___sys_sendmsg+0xee/0x170
[ 3002.007965][   T73]      __sys_sendmsg+0xcd/0x170
[ 3002.007965][   T73]      do_syscall_64+0xc6/0x1e0
[ 3002.007965][   T73] 
[ 3002.009941][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3002.009941][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3002.009941][   T73]      ipv6_find_idev+0x102/0x170
[ 3002.009941][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3002.009941][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3002.009941][   T73]      netlink_rcv_skb+0x130/0x360
[ 3002.009941][   T73]      netlink_unicast+0x449/0x710
[ 3002.009941][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3002.009941][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3002.009941][   T73]      ___sys_sendmsg+0xee/0x170
[ 3002.009941][   T73]      __sys_sendmsg+0xcd/0x170
[ 3002.009941][   T73]      do_syscall_64+0xc6/0x1e0
[ 3002.009941][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3002.009941][   T73] 
[ 3002.011495][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3002.011495][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3002.011495][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3002.011495][   T73]      ipv6_find_idev+0x102/0x170
[ 3002.011495][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3002.011495][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3002.011495][   T73]      netlink_rcv_skb+0x130/0x360
[ 3002.011495][   T73]      netlink_unicast+0x449/0x710
[ 3002.011495][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3002.011495][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3002.011495][   T73]      ___sys_sendmsg+0xee/0x170
[ 3002.011495][   T73]      __sys_sendmsg+0xcd/0x170
[ 3002.011495][   T73]      do_syscall_64+0xc6/0x1e0
[ 3002.011495][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3002.011495][   T73] 
[ 3002.013216][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3002.013500][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3002.013500][   T73]      netdev_get_by_index+0x5e/0x80
[ 3002.013500][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3002.013500][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3002.013500][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3002.013500][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3002.013500][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3002.013500][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3002.013500][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3002.013500][   T73]      addrconf_dad_begin+0x310/0x670
[ 3002.013500][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3002.013500][   T73]      process_one_work+0x84d/0x18a0
[ 3002.013500][   T73]      worker_thread+0x587/0xd30
[ 3002.013500][   T73]      kthread+0x28a/0x350
[ 3002.013500][   T73]      ret_from_fork+0x31/0x70
[ 3002.013500][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3002.013500][   T73] 
[ 3002.015423][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3002.015423][   T73]      netdev_get_by_index+0x5e/0x80
[ 3002.015423][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3002.015423][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3002.015423][   T73]      ip6_route_add+0x1c/0x140
[ 3002.015423][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3002.015423][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3002.015423][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3002.015423][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3002.015423][   T73]      netlink_rcv_skb+0x130/0x360
[ 3002.015423][   T73]      netlink_unicast+0x449/0x710
[ 3002.015423][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3002.015423][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3002.015423][   T73]      ___sys_sendmsg+0xee/0x170
[ 3002.015423][   T73]      __sys_sendmsg+0xcd/0x170
[ 3002.015423][   T73]      do_syscall_64+0xc6/0x1e0
[ 3002.015423][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3002.015423][   T73] 
[ 3002.017443][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3002.017443][   T73]      netdev_get_by_index+0x5e/0x80
[ 3002.017443][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3002.017443][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3002.017443][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3002.017443][   T73]      ipv6_add_addr+0x411/0x2000
[ 3002.017443][   T73]      inet6_addr_add+0x30e/0xa40
[ 3002.017443][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3002.017443][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3002.017443][   T73]      netlink_rcv_skb+0x130/0x360
[ 3002.017443][   T73]      netlink_unicast+0x449/0x710
[ 3002.017443][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3002.017443][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3002.017443][   T73]      ___sys_sendmsg+0xee/0x170
[ 3002.017443][   T73]      __sys_sendmsg+0xcd/0x170
[ 3002.017443][   T73]      do_syscall_64+0xc6/0x1e0
[ 3002.017443][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3002.017443][   T73] 
[ 3002.019462][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3002.019462][   T73]      netdev_get_by_index+0x5e/0x80
[ 3002.019462][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3002.019462][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3002.019462][   T73]      ip6_route_add+0x1c/0x140
[ 3002.019462][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3002.019462][   T73]      addrconf_add_dev+0xe2/0x170
[ 3002.019462][   T73]      inet6_addr_add+0x12f/0xa40
[ 3002.019462][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3002.019462][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3002.019462][   T73]      netlink_rcv_skb+0x130/0x360
[ 3002.019462][   T73]      netlink_unicast+0x449/0x710
[ 3002.019462][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3002.019462][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3002.019462][   T73]      ___sys_sendmsg+0xee/0x170
[ 3002.019462][   T73]      __sys_sendmsg+0xcd/0x170
[ 3002.019462][   T73]      do_syscall_64+0xc6/0x1e0
[ 3002.019462][   T73] 
[ 3002.021449][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3002.021449][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3002.021449][   T73]      ipv6_find_idev+0x102/0x170
[ 3002.021449][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3002.021449][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3002.021449][   T73]      netlink_rcv_skb+0x130/0x360
[ 3002.021449][   T73]      netlink_unicast+0x449/0x710
[ 3002.021449][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3002.021449][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3002.021449][   T73]      ___sys_sendmsg+0xee/0x170
[ 3002.021449][   T73]      __sys_sendmsg+0xcd/0x170
[ 3002.021449][   T73]      do_syscall_64+0xc6/0x1e0
[ 3002.021449][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3002.021449][   T73] 
[ 3002.022996][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3002.022996][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3002.022996][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3002.022996][   T73]      ipv6_find_idev+0x102/0x170
[ 3002.022996][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3002.022996][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3002.022996][   T73]      netlink_rcv_skb+0x130/0x360
[ 3002.022996][   T73]      netlink_unicast+0x449/0x710
[ 3002.022996][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3002.022996][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3002.022996][   T73]      ___sys_sendmsg+0xee/0x170
[ 3002.022996][   T73]      __sys_sendmsg+0xcd/0x170
[ 3002.022996][   T73]      do_syscall_64+0xc6/0x1e0
[ 3002.022996][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3002.022996][   T73] 
[ 3002.024706][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3002.024977][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3002.024977][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3002.024977][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3002.024977][   T73]      fib6_nh_init+0xa22/0x1580
[ 3002.024977][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3002.024977][   T73]      ip6_route_add+0x1c/0x140
[ 3002.024977][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3002.024977][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3002.024977][   T73]      netlink_rcv_skb+0x130/0x360
[ 3002.024977][   T73]      netlink_unicast+0x449/0x710
[ 3002.024977][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3002.024977][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3002.024977][   T73]      ___sys_sendmsg+0xee/0x170
[ 3002.024977][   T73]      __sys_sendmsg+0xcd/0x170
[ 3002.024977][   T73]      do_syscall_64+0xc6/0x1e0
[ 3002.024977][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3002.024977][   T73] 
[ 3002.027057][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3002.027057][   T73]      dst_init+0x84/0x4a0
[ 3002.027057][   T73]      dst_alloc+0x97/0x150
[ 3002.027057][   T73]      ip6_dst_alloc+0x23/0x90
[ 3002.027057][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3002.027057][   T73]      ip6_pol_route+0x56f/0x840
[ 3002.027057][   T73]      fib6_rule_lookup+0x456/0x630
[ 3002.027057][   T73]      ip6_route_input+0x59c/0xa50
[ 3002.027057][   T73]      ipv6_rcv+0x397/0x810
[ 3002.027057][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3002.027057][   T73]      process_backlog+0x101/0x620
[ 3002.027057][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3002.027057][   T73]      net_rx_action+0x495/0xbe0
[ 3002.027057][   T73]      __do_softirq+0x1b5/0x7f6
[ 3002.027057][   T73] 
[ 3002.028979][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3002.028979][   T73]      netdev_get_by_index+0x5e/0x80
[ 3002.028979][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3002.028979][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3002.028979][   T73]      ip6_route_add+0x1c/0x140
[ 3002.028979][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3002.028979][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3002.028979][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3002.028979][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3002.028979][   T73]      netlink_rcv_skb+0x130/0x360
[ 3002.028979][   T73]      netlink_unicast+0x449/0x710
[ 3002.028979][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3002.028979][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3002.028979][   T73]      ___sys_sendmsg+0xee/0x170
[ 3002.028979][   T73]      __sys_sendmsg+0xcd/0x170
[ 3002.028979][   T73]      do_syscall_64+0xc6/0x1e0
[ 3002.028979][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3002.028979][   T73] 
[ 3002.031235][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3002.031235][   T73]      netdev_get_by_index+0x5e/0x80
[ 3002.031235][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3002.031235][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3002.031235][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3002.031235][   T73]      ipv6_add_addr+0x411/0x2000
[ 3002.031235][   T73]      inet6_addr_add+0x30e/0xa40
[ 3002.031235][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3002.031235][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3002.031235][   T73]      netlink_rcv_skb+0x130/0x360
[ 3002.031235][   T73]      netlink_unicast+0x449/0x710
[ 3002.031235][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3002.031235][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3002.031235][   T73]      ___sys_sendmsg+0xee/0x170
[ 3002.031235][   T73]      __sys_sendmsg+0xcd/0x170
[ 3002.031235][   T73]      do_syscall_64+0xc6/0x1e0
[ 3002.031235][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3002.031235][   T73] 
[ 3002.033488][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3002.033488][   T73]      netdev_get_by_index+0x5e/0x80
[ 3002.033488][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3002.033488][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3002.033488][   T73]      ip6_route_add+0x1c/0x140
[ 3002.033488][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3002.033488][   T73]      addrconf_add_dev+0xe2/0x170
[ 3002.033488][   T73]      inet6_addr_add+0x12f/0xa40
[ 3002.033488][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3002.033488][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3002.033488][   T73]      netlink_rcv_skb+0x130/0x360
[ 3002.033488][   T73]      netlink_unicast+0x449/0x710
[ 3002.033488][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3002.033488][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3002.033488][   T73]      ___sys_sendmsg+0xee/0x170
[ 3002.033488][   T73]      __sys_sendmsg+0xcd/0x170
[ 3002.033488][   T73]      do_syscall_64+0xc6/0x1e0
[ 3002.033488][   T73] 
[ 3002.035642][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3002.035642][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3002.035642][   T73]      ipv6_find_idev+0x102/0x170
[ 3002.035642][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3002.035642][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3002.035642][   T73]      netlink_rcv_skb+0x130/0x360
[ 3002.035642][   T73]      netlink_unicast+0x449/0x710
[ 3002.035642][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3002.035642][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3002.035642][   T73]      ___sys_sendmsg+0xee/0x170
[ 3002.035642][   T73]      __sys_sendmsg+0xcd/0x170
[ 3002.035642][   T73]      do_syscall_64+0xc6/0x1e0
[ 3002.035642][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3002.035642][   T73] 
[ 3002.037434][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3002.037434][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3002.037434][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3002.037434][   T73]      ipv6_find_idev+0x102/0x170
[ 3002.037434][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3002.037434][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3002.037434][   T73]      netlink_rcv_skb+0x130/0x360
[ 3002.037434][   T73]      netlink_unicast+0x449/0x710
[ 3002.037434][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3002.037434][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3002.037434][   T73]      ___sys_sendmsg+0xee/0x170
[ 3002.037434][   T73]      __sys_sendmsg+0xcd/0x170
[ 3002.037434][   T73]      do_syscall_64+0xc6/0x1e0
[ 3002.037434][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3002.037434][   T73] 
[ 3002.039388][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3002.039666][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3002.039666][   T73]      netdev_get_by_index+0x5e/0x80
[ 3002.039666][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3002.039666][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3002.039666][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3002.039666][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3002.039666][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3002.039666][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3002.039666][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3002.039666][   T73]      addrconf_dad_begin+0x310/0x670
[ 3002.039666][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3002.039666][   T73]      process_one_work+0x84d/0x18a0
[ 3002.039666][   T73]      worker_thread+0x587/0xd30
[ 3002.039666][   T73]      kthread+0x28a/0x350
[ 3002.039666][   T73]      ret_from_fork+0x31/0x70
[ 3002.039666][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3002.039666][   T73] 
[ 3002.041829][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3002.041829][   T73]      netdev_get_by_index+0x5e/0x80
[ 3002.041829][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3002.041829][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3002.041829][   T73]      ip6_route_add+0x1c/0x140
[ 3002.041829][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3002.041829][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3002.041829][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3002.041829][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3002.041829][   T73]      netlink_rcv_skb+0x130/0x360
[ 3002.041829][   T73]      netlink_unicast+0x449/0x710
[ 3002.041829][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3002.041829][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3002.041829][   T73]      ___sys_sendmsg+0xee/0x170
[ 3002.041829][   T73]      __sys_sendmsg+0xcd/0x170
[ 3002.041829][   T73]      do_syscall_64+0xc6/0x1e0
[ 3002.041829][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3002.041829][   T73] 
[ 3002.044083][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3002.044083][   T73]      netdev_get_by_index+0x5e/0x80
[ 3002.044083][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3002.044083][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3002.044083][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3002.044083][   T73]      ipv6_add_addr+0x411/0x2000
[ 3002.044083][   T73]      inet6_addr_add+0x30e/0xa40
[ 3002.044083][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3002.044083][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3002.044083][   T73]      netlink_rcv_skb+0x130/0x360
[ 3002.044083][   T73]      netlink_unicast+0x449/0x710
[ 3002.044083][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3002.044083][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3002.044083][   T73]      ___sys_sendmsg+0xee/0x170
[ 3002.044083][   T73]      __sys_sendmsg+0xcd/0x170
[ 3002.044083][   T73]      do_syscall_64+0xc6/0x1e0
[ 3002.044083][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3002.044083][   T73] 
[ 3002.046268][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3002.046268][   T73]      netdev_get_by_index+0x5e/0x80
[ 3002.046268][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3002.046268][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3002.046268][   T73]      ip6_route_add+0x1c/0x140
[ 3002.046268][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3002.046268][   T73]      addrconf_add_dev+0xe2/0x170
[ 3002.046268][   T73]      inet6_addr_add+0x12f/0xa40
[ 3002.046268][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3002.046268][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3002.046268][   T73]      netlink_rcv_skb+0x130/0x360
[ 3002.046268][   T73]      netlink_unicast+0x449/0x710
[ 3002.046268][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3002.046268][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3002.046268][   T73]      ___sys_sendmsg+0xee/0x170
[ 3002.046268][   T73]      __sys_sendmsg+0xcd/0x170
[ 3002.046268][   T73]      do_syscall_64+0xc6/0x1e0
[ 3002.046268][   T73] 
[ 3002.048545][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3002.048545][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3002.048545][   T73]      ipv6_find_idev+0x102/0x170
[ 3002.048545][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3002.048545][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3002.048545][   T73]      netlink_rcv_skb+0x130/0x360
[ 3002.048545][   T73]      netlink_unicast+0x449/0x710
[ 3002.048545][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3002.048545][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3002.048545][   T73]      ___sys_sendmsg+0xee/0x170
[ 3002.048545][   T73]      __sys_sendmsg+0xcd/0x170
[ 3002.048545][   T73]      do_syscall_64+0xc6/0x1e0
[ 3002.048545][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3002.048545][   T73] 
[ 3002.050269][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3002.050269][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3002.050269][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3002.050269][   T73]      ipv6_find_idev+0x102/0x170
[ 3002.050269][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3002.050269][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3002.050269][   T73]      netlink_rcv_skb+0x130/0x360
[ 3002.050269][   T73]      netlink_unicast+0x449/0x710
[ 3002.050269][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3002.050269][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3002.050269][   T73]      ___sys_sendmsg+0xee/0x170
[ 3002.050269][   T73]      __sys_sendmsg+0xcd/0x170
[ 3002.050269][   T73]      do_syscall_64+0xc6/0x1e0
[ 3002.050269][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3002.050269][   T73] 
[ 3012.111797][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3012.112281][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3012.112281][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3012.112281][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3012.112281][   T73]      fib6_nh_init+0xa22/0x1580
[ 3012.112281][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3012.112281][   T73]      ip6_route_add+0x1c/0x140
[ 3012.112281][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3012.112281][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3012.112281][   T73]      netlink_rcv_skb+0x130/0x360
[ 3012.112281][   T73]      netlink_unicast+0x449/0x710
[ 3012.112281][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3012.112281][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3012.112281][   T73]      ___sys_sendmsg+0xee/0x170
[ 3012.112281][   T73]      __sys_sendmsg+0xcd/0x170
[ 3012.112281][   T73]      do_syscall_64+0xc6/0x1e0
[ 3012.112281][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3012.112281][   T73] 
[ 3012.114356][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3012.114356][   T73]      dst_init+0x84/0x4a0
[ 3012.114356][   T73]      dst_alloc+0x97/0x150
[ 3012.114356][   T73]      ip6_dst_alloc+0x23/0x90
[ 3012.114356][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3012.114356][   T73]      ip6_pol_route+0x56f/0x840
[ 3012.114356][   T73]      fib6_rule_lookup+0x456/0x630
[ 3012.114356][   T73]      ip6_route_input+0x59c/0xa50
[ 3012.114356][   T73]      ipv6_rcv+0x397/0x810
[ 3012.114356][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3012.114356][   T73]      process_backlog+0x101/0x620
[ 3012.114356][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3012.114356][   T73]      net_rx_action+0x495/0xbe0
[ 3012.114356][   T73]      __do_softirq+0x1b5/0x7f6
[ 3012.114356][   T73] 
[ 3012.116135][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3012.116135][   T73]      netdev_get_by_index+0x5e/0x80
[ 3012.116135][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3012.116135][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3012.116135][   T73]      ip6_route_add+0x1c/0x140
[ 3012.116135][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3012.116135][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3012.116135][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3012.116135][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3012.116135][   T73]      netlink_rcv_skb+0x130/0x360
[ 3012.116135][   T73]      netlink_unicast+0x449/0x710
[ 3012.116135][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3012.116135][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3012.116135][   T73]      ___sys_sendmsg+0xee/0x170
[ 3012.116135][   T73]      __sys_sendmsg+0xcd/0x170
[ 3012.116135][   T73]      do_syscall_64+0xc6/0x1e0
[ 3012.116135][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3012.116135][   T73] 
[ 3012.118322][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3012.118322][   T73]      netdev_get_by_index+0x5e/0x80
[ 3012.118322][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3012.118322][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3012.118322][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3012.118322][   T73]      ipv6_add_addr+0x411/0x2000
[ 3012.118322][   T73]      inet6_addr_add+0x30e/0xa40
[ 3012.118322][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3012.118322][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3012.118322][   T73]      netlink_rcv_skb+0x130/0x360
[ 3012.118322][   T73]      netlink_unicast+0x449/0x710
[ 3012.118322][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3012.118322][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3012.118322][   T73]      ___sys_sendmsg+0xee/0x170
[ 3012.118322][   T73]      __sys_sendmsg+0xcd/0x170
[ 3012.118322][   T73]      do_syscall_64+0xc6/0x1e0
[ 3012.118322][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3012.118322][   T73] 
[ 3012.120532][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3012.120532][   T73]      netdev_get_by_index+0x5e/0x80
[ 3012.120532][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3012.120532][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3012.120532][   T73]      ip6_route_add+0x1c/0x140
[ 3012.120532][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3012.120532][   T73]      addrconf_add_dev+0xe2/0x170
[ 3012.120532][   T73]      inet6_addr_add+0x12f/0xa40
[ 3012.120532][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3012.120532][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3012.120532][   T73]      netlink_rcv_skb+0x130/0x360
[ 3012.120532][   T73]      netlink_unicast+0x449/0x710
[ 3012.120532][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3012.120532][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3012.120532][   T73]      ___sys_sendmsg+0xee/0x170
[ 3012.120532][   T73]      __sys_sendmsg+0xcd/0x170
[ 3012.120532][   T73]      do_syscall_64+0xc6/0x1e0
[ 3012.120532][   T73] 
[ 3012.122725][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3012.122725][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3012.122725][   T73]      ipv6_find_idev+0x102/0x170
[ 3012.122725][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3012.122725][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3012.122725][   T73]      netlink_rcv_skb+0x130/0x360
[ 3012.122725][   T73]      netlink_unicast+0x449/0x710
[ 3012.122725][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3012.122725][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3012.122725][   T73]      ___sys_sendmsg+0xee/0x170
[ 3012.122725][   T73]      __sys_sendmsg+0xcd/0x170
[ 3012.122725][   T73]      do_syscall_64+0xc6/0x1e0
[ 3012.122725][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3012.122725][   T73] 
[ 3012.124434][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3012.124434][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3012.124434][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3012.124434][   T73]      ipv6_find_idev+0x102/0x170
[ 3012.124434][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3012.124434][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3012.124434][   T73]      netlink_rcv_skb+0x130/0x360
[ 3012.124434][   T73]      netlink_unicast+0x449/0x710
[ 3012.124434][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3012.124434][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3012.124434][   T73]      ___sys_sendmsg+0xee/0x170
[ 3012.124434][   T73]      __sys_sendmsg+0xcd/0x170
[ 3012.124434][   T73]      do_syscall_64+0xc6/0x1e0
[ 3012.124434][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3012.124434][   T73] 
[ 3012.126322][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3012.126631][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3012.126631][   T73]      netdev_get_by_index+0x5e/0x80
[ 3012.126631][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3012.126631][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3012.126631][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3012.126631][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3012.126631][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3012.126631][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3012.126631][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3012.126631][   T73]      addrconf_dad_begin+0x310/0x670
[ 3012.126631][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3012.126631][   T73]      process_one_work+0x84d/0x18a0
[ 3012.126631][   T73]      worker_thread+0x587/0xd30
[ 3012.126631][   T73]      kthread+0x28a/0x350
[ 3012.126631][   T73]      ret_from_fork+0x31/0x70
[ 3012.126631][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3012.126631][   T73] 
[ 3012.128731][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3012.128731][   T73]      netdev_get_by_index+0x5e/0x80
[ 3012.128731][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3012.128731][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3012.128731][   T73]      ip6_route_add+0x1c/0x140
[ 3012.128731][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3012.128731][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3012.128731][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3012.128731][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3012.128731][   T73]      netlink_rcv_skb+0x130/0x360
[ 3012.128731][   T73]      netlink_unicast+0x449/0x710
[ 3012.128731][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3012.128731][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3012.128731][   T73]      ___sys_sendmsg+0xee/0x170
[ 3012.128731][   T73]      __sys_sendmsg+0xcd/0x170
[ 3012.128731][   T73]      do_syscall_64+0xc6/0x1e0
[ 3012.128731][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3012.128731][   T73] 
[ 3012.131005][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3012.131005][   T73]      netdev_get_by_index+0x5e/0x80
[ 3012.131005][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3012.131005][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3012.131005][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3012.131005][   T73]      ipv6_add_addr+0x411/0x2000
[ 3012.131005][   T73]      inet6_addr_add+0x30e/0xa40
[ 3012.131005][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3012.131005][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3012.131005][   T73]      netlink_rcv_skb+0x130/0x360
[ 3012.131005][   T73]      netlink_unicast+0x449/0x710
[ 3012.131005][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3012.131005][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3012.131005][   T73]      ___sys_sendmsg+0xee/0x170
[ 3012.131005][   T73]      __sys_sendmsg+0xcd/0x170
[ 3012.131005][   T73]      do_syscall_64+0xc6/0x1e0
[ 3012.131005][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3012.131005][   T73] 
[ 3012.133221][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3012.133221][   T73]      netdev_get_by_index+0x5e/0x80
[ 3012.133221][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3012.133221][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3012.133221][   T73]      ip6_route_add+0x1c/0x140
[ 3012.133221][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3012.133221][   T73]      addrconf_add_dev+0xe2/0x170
[ 3012.133221][   T73]      inet6_addr_add+0x12f/0xa40
[ 3012.133221][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3012.133221][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3012.133221][   T73]      netlink_rcv_skb+0x130/0x360
[ 3012.133221][   T73]      netlink_unicast+0x449/0x710
[ 3012.133221][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3012.133221][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3012.133221][   T73]      ___sys_sendmsg+0xee/0x170
[ 3012.133221][   T73]      __sys_sendmsg+0xcd/0x170
[ 3012.133221][   T73]      do_syscall_64+0xc6/0x1e0
[ 3012.133221][   T73] 
[ 3012.135399][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3012.135399][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3012.135399][   T73]      ipv6_find_idev+0x102/0x170
[ 3012.135399][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3012.135399][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3012.135399][   T73]      netlink_rcv_skb+0x130/0x360
[ 3012.135399][   T73]      netlink_unicast+0x449/0x710
[ 3012.135399][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3012.135399][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3012.135399][   T73]      ___sys_sendmsg+0xee/0x170
[ 3012.135399][   T73]      __sys_sendmsg+0xcd/0x170
[ 3012.135399][   T73]      do_syscall_64+0xc6/0x1e0
[ 3012.135399][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3012.135399][   T73] 
[ 3012.137076][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3012.137076][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3012.137076][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3012.137076][   T73]      ipv6_find_idev+0x102/0x170
[ 3012.137076][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3012.137076][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3012.137076][   T73]      netlink_rcv_skb+0x130/0x360
[ 3012.137076][   T73]      netlink_unicast+0x449/0x710
[ 3012.137076][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3012.137076][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3012.137076][   T73]      ___sys_sendmsg+0xee/0x170
[ 3012.137076][   T73]      __sys_sendmsg+0xcd/0x170
[ 3012.137076][   T73]      do_syscall_64+0xc6/0x1e0
[ 3012.137076][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3012.137076][   T73] 
[ 3012.138908][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3012.139203][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3012.139203][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3012.139203][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3012.139203][   T73]      fib6_nh_init+0xa22/0x1580
[ 3012.139203][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3012.139203][   T73]      ip6_route_add+0x1c/0x140
[ 3012.139203][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3012.139203][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3012.139203][   T73]      netlink_rcv_skb+0x130/0x360
[ 3012.139203][   T73]      netlink_unicast+0x449/0x710
[ 3012.139203][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3012.139203][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3012.139203][   T73]      ___sys_sendmsg+0xee/0x170
[ 3012.139203][   T73]      __sys_sendmsg+0xcd/0x170
[ 3012.139203][   T73]      do_syscall_64+0xc6/0x1e0
[ 3012.139203][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3012.139203][   T73] 
[ 3012.141455][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3012.141455][   T73]      dst_init+0x84/0x4a0
[ 3012.141455][   T73]      dst_alloc+0x97/0x150
[ 3012.141455][   T73]      ip6_dst_alloc+0x23/0x90
[ 3012.141455][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3012.141455][   T73]      ip6_pol_route+0x56f/0x840
[ 3012.141455][   T73]      fib6_rule_lookup+0x456/0x630
[ 3012.141455][   T73]      ip6_route_input+0x59c/0xa50
[ 3012.141455][   T73]      ipv6_rcv+0x397/0x810
[ 3012.141455][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3012.141455][   T73]      process_backlog+0x101/0x620
[ 3012.141455][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3012.141455][   T73]      net_rx_action+0x495/0xbe0
[ 3012.141455][   T73]      __do_softirq+0x1b5/0x7f6
[ 3012.141455][   T73] 
[ 3012.143423][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3012.143423][   T73]      netdev_get_by_index+0x5e/0x80
[ 3012.143423][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3012.143423][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3012.143423][   T73]      ip6_route_add+0x1c/0x140
[ 3012.143423][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3012.143423][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3012.143423][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3012.143423][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3012.143423][   T73]      netlink_rcv_skb+0x130/0x360
[ 3012.143423][   T73]      netlink_unicast+0x449/0x710
[ 3012.143423][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3012.143423][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3012.143423][   T73]      ___sys_sendmsg+0xee/0x170
[ 3012.143423][   T73]      __sys_sendmsg+0xcd/0x170
[ 3012.143423][   T73]      do_syscall_64+0xc6/0x1e0
[ 3012.143423][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3012.143423][   T73] 
[ 3012.145848][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3012.145848][   T73]      netdev_get_by_index+0x5e/0x80
[ 3012.145848][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3012.145848][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3012.145848][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3012.145848][   T73]      ipv6_add_addr+0x411/0x2000
[ 3012.145848][   T73]      inet6_addr_add+0x30e/0xa40
[ 3012.145848][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3012.145848][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3012.145848][   T73]      netlink_rcv_skb+0x130/0x360
[ 3012.145848][   T73]      netlink_unicast+0x449/0x710
[ 3012.145848][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3012.145848][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3012.145848][   T73]      ___sys_sendmsg+0xee/0x170
[ 3012.145848][   T73]      __sys_sendmsg+0xcd/0x170
[ 3012.145848][   T73]      do_syscall_64+0xc6/0x1e0
[ 3012.145848][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3012.145848][   T73] 
[ 3012.148377][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3012.148377][   T73]      netdev_get_by_index+0x5e/0x80
[ 3012.148377][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3012.148377][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3012.148377][   T73]      ip6_route_add+0x1c/0x140
[ 3012.148377][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3012.148377][   T73]      addrconf_add_dev+0xe2/0x170
[ 3012.148377][   T73]      inet6_addr_add+0x12f/0xa40
[ 3012.148377][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3012.148377][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3012.148377][   T73]      netlink_rcv_skb+0x130/0x360
[ 3012.148377][   T73]      netlink_unicast+0x449/0x710
[ 3012.148377][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3012.148377][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3012.148377][   T73]      ___sys_sendmsg+0xee/0x170
[ 3012.148377][   T73]      __sys_sendmsg+0xcd/0x170
[ 3012.148377][   T73]      do_syscall_64+0xc6/0x1e0
[ 3012.148377][   T73] 
[ 3012.150723][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3012.150723][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3012.150723][   T73]      ipv6_find_idev+0x102/0x170
[ 3012.150723][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3012.150723][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3012.150723][   T73]      netlink_rcv_skb+0x130/0x360
[ 3012.150723][   T73]      netlink_unicast+0x449/0x710
[ 3012.150723][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3012.150723][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3012.150723][   T73]      ___sys_sendmsg+0xee/0x170
[ 3012.150723][   T73]      __sys_sendmsg+0xcd/0x170
[ 3012.150723][   T73]      do_syscall_64+0xc6/0x1e0
[ 3012.150723][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3012.150723][   T73] 
[ 3012.152599][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3012.152599][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3012.152599][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3012.152599][   T73]      ipv6_find_idev+0x102/0x170
[ 3012.152599][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3012.152599][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3012.152599][   T73]      netlink_rcv_skb+0x130/0x360
[ 3012.152599][   T73]      netlink_unicast+0x449/0x710
[ 3012.152599][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3012.152599][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3012.152599][   T73]      ___sys_sendmsg+0xee/0x170
[ 3012.152599][   T73]      __sys_sendmsg+0xcd/0x170
[ 3012.152599][   T73]      do_syscall_64+0xc6/0x1e0
[ 3012.152599][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3012.152599][   T73] 
[ 3012.154705][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3012.155003][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3012.155003][   T73]      netdev_get_by_index+0x5e/0x80
[ 3012.155003][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3012.155003][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3012.155003][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3012.155003][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3012.155003][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3012.155003][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3012.155003][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3012.155003][   T73]      addrconf_dad_begin+0x310/0x670
[ 3012.155003][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3012.155003][   T73]      process_one_work+0x84d/0x18a0
[ 3012.155003][   T73]      worker_thread+0x587/0xd30
[ 3012.155003][   T73]      kthread+0x28a/0x350
[ 3012.155003][   T73]      ret_from_fork+0x31/0x70
[ 3012.155003][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3012.155003][   T73] 
[ 3012.157355][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3012.157355][   T73]      netdev_get_by_index+0x5e/0x80
[ 3012.157355][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3012.157355][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3012.157355][   T73]      ip6_route_add+0x1c/0x140
[ 3012.157355][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3012.157355][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3012.157355][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3012.157355][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3012.157355][   T73]      netlink_rcv_skb+0x130/0x360
[ 3012.157355][   T73]      netlink_unicast+0x449/0x710
[ 3012.157355][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3012.157355][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3012.157355][   T73]      ___sys_sendmsg+0xee/0x170
[ 3012.157355][   T73]      __sys_sendmsg+0xcd/0x170
[ 3012.157355][   T73]      do_syscall_64+0xc6/0x1e0
[ 3012.157355][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3012.157355][   T73] 
[ 3012.159836][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3012.159836][   T73]      netdev_get_by_index+0x5e/0x80
[ 3012.159836][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3012.159836][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3012.159836][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3012.159836][   T73]      ipv6_add_addr+0x411/0x2000
[ 3012.159836][   T73]      inet6_addr_add+0x30e/0xa40
[ 3012.159836][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3012.159836][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3012.159836][   T73]      netlink_rcv_skb+0x130/0x360
[ 3012.159836][   T73]      netlink_unicast+0x449/0x710
[ 3012.159836][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3012.159836][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3012.159836][   T73]      ___sys_sendmsg+0xee/0x170
[ 3012.159836][   T73]      __sys_sendmsg+0xcd/0x170
[ 3012.159836][   T73]      do_syscall_64+0xc6/0x1e0
[ 3012.159836][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3012.159836][   T73] 
[ 3012.162191][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3012.162191][   T73]      netdev_get_by_index+0x5e/0x80
[ 3012.162191][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3012.162191][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3012.162191][   T73]      ip6_route_add+0x1c/0x140
[ 3012.162191][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3012.162191][   T73]      addrconf_add_dev+0xe2/0x170
[ 3012.162191][   T73]      inet6_addr_add+0x12f/0xa40
[ 3012.162191][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3012.162191][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3012.162191][   T73]      netlink_rcv_skb+0x130/0x360
[ 3012.162191][   T73]      netlink_unicast+0x449/0x710
[ 3012.162191][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3012.162191][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3012.162191][   T73]      ___sys_sendmsg+0xee/0x170
[ 3012.162191][   T73]      __sys_sendmsg+0xcd/0x170
[ 3012.162191][   T73]      do_syscall_64+0xc6/0x1e0
[ 3012.162191][   T73] 
[ 3012.164575][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3012.164575][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3012.164575][   T73]      ipv6_find_idev+0x102/0x170
[ 3012.164575][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3012.164575][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3012.164575][   T73]      netlink_rcv_skb+0x130/0x360
[ 3012.164575][   T73]      netlink_unicast+0x449/0x710
[ 3012.164575][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3012.164575][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3012.164575][   T73]      ___sys_sendmsg+0xee/0x170
[ 3012.164575][   T73]      __sys_sendmsg+0xcd/0x170
[ 3012.164575][   T73]      do_syscall_64+0xc6/0x1e0
[ 3012.164575][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3012.164575][   T73] 
[ 3012.166350][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3012.166350][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3012.166350][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3012.166350][   T73]      ipv6_find_idev+0x102/0x170
[ 3012.166350][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3012.166350][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3012.166350][   T73]      netlink_rcv_skb+0x130/0x360
[ 3012.166350][   T73]      netlink_unicast+0x449/0x710
[ 3012.166350][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3012.166350][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3012.166350][   T73]      ___sys_sendmsg+0xee/0x170
[ 3012.166350][   T73]      __sys_sendmsg+0xcd/0x170
[ 3012.166350][   T73]      do_syscall_64+0xc6/0x1e0
[ 3012.166350][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3012.166350][   T73] 
[ 3022.375720][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3022.376220][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3022.376220][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3022.376220][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3022.376220][   T73]      fib6_nh_init+0xa22/0x1580
[ 3022.376220][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3022.376220][   T73]      ip6_route_add+0x1c/0x140
[ 3022.376220][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3022.376220][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3022.376220][   T73]      netlink_rcv_skb+0x130/0x360
[ 3022.376220][   T73]      netlink_unicast+0x449/0x710
[ 3022.376220][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3022.376220][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3022.376220][   T73]      ___sys_sendmsg+0xee/0x170
[ 3022.376220][   T73]      __sys_sendmsg+0xcd/0x170
[ 3022.376220][   T73]      do_syscall_64+0xc6/0x1e0
[ 3022.376220][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3022.376220][   T73] 
[ 3022.378159][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3022.378159][   T73]      dst_init+0x84/0x4a0
[ 3022.378159][   T73]      dst_alloc+0x97/0x150
[ 3022.378159][   T73]      ip6_dst_alloc+0x23/0x90
[ 3022.378159][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3022.378159][   T73]      ip6_pol_route+0x56f/0x840
[ 3022.378159][   T73]      fib6_rule_lookup+0x456/0x630
[ 3022.378159][   T73]      ip6_route_input+0x59c/0xa50
[ 3022.378159][   T73]      ipv6_rcv+0x397/0x810
[ 3022.378159][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3022.378159][   T73]      process_backlog+0x101/0x620
[ 3022.378159][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3022.378159][   T73]      net_rx_action+0x495/0xbe0
[ 3022.378159][   T73]      __do_softirq+0x1b5/0x7f6
[ 3022.378159][   T73] 
[ 3022.379851][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3022.379851][   T73]      netdev_get_by_index+0x5e/0x80
[ 3022.379851][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3022.379851][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3022.379851][   T73]      ip6_route_add+0x1c/0x140
[ 3022.379851][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3022.379851][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3022.379851][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3022.379851][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3022.379851][   T73]      netlink_rcv_skb+0x130/0x360
[ 3022.379851][   T73]      netlink_unicast+0x449/0x710
[ 3022.379851][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3022.379851][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3022.379851][   T73]      ___sys_sendmsg+0xee/0x170
[ 3022.379851][   T73]      __sys_sendmsg+0xcd/0x170
[ 3022.379851][   T73]      do_syscall_64+0xc6/0x1e0
[ 3022.379851][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3022.379851][   T73] 
[ 3022.381892][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3022.381892][   T73]      netdev_get_by_index+0x5e/0x80
[ 3022.381892][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3022.381892][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3022.381892][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3022.381892][   T73]      ipv6_add_addr+0x411/0x2000
[ 3022.381892][   T73]      inet6_addr_add+0x30e/0xa40
[ 3022.381892][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3022.381892][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3022.381892][   T73]      netlink_rcv_skb+0x130/0x360
[ 3022.381892][   T73]      netlink_unicast+0x449/0x710
[ 3022.381892][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3022.381892][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3022.381892][   T73]      ___sys_sendmsg+0xee/0x170
[ 3022.381892][   T73]      __sys_sendmsg+0xcd/0x170
[ 3022.381892][   T73]      do_syscall_64+0xc6/0x1e0
[ 3022.381892][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3022.381892][   T73] 
[ 3022.383922][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3022.383922][   T73]      netdev_get_by_index+0x5e/0x80
[ 3022.383922][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3022.383922][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3022.383922][   T73]      ip6_route_add+0x1c/0x140
[ 3022.383922][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3022.383922][   T73]      addrconf_add_dev+0xe2/0x170
[ 3022.383922][   T73]      inet6_addr_add+0x12f/0xa40
[ 3022.383922][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3022.383922][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3022.383922][   T73]      netlink_rcv_skb+0x130/0x360
[ 3022.383922][   T73]      netlink_unicast+0x449/0x710
[ 3022.383922][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3022.383922][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3022.383922][   T73]      ___sys_sendmsg+0xee/0x170
[ 3022.383922][   T73]      __sys_sendmsg+0xcd/0x170
[ 3022.383922][   T73]      do_syscall_64+0xc6/0x1e0
[ 3022.383922][   T73] 
[ 3022.385909][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3022.385909][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3022.385909][   T73]      ipv6_find_idev+0x102/0x170
[ 3022.385909][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3022.385909][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3022.385909][   T73]      netlink_rcv_skb+0x130/0x360
[ 3022.385909][   T73]      netlink_unicast+0x449/0x710
[ 3022.385909][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3022.385909][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3022.385909][   T73]      ___sys_sendmsg+0xee/0x170
[ 3022.385909][   T73]      __sys_sendmsg+0xcd/0x170
[ 3022.385909][   T73]      do_syscall_64+0xc6/0x1e0
[ 3022.385909][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3022.385909][   T73] 
[ 3022.387501][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3022.387501][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3022.387501][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3022.387501][   T73]      ipv6_find_idev+0x102/0x170
[ 3022.387501][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3022.387501][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3022.387501][   T73]      netlink_rcv_skb+0x130/0x360
[ 3022.387501][   T73]      netlink_unicast+0x449/0x710
[ 3022.387501][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3022.387501][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3022.387501][   T73]      ___sys_sendmsg+0xee/0x170
[ 3022.387501][   T73]      __sys_sendmsg+0xcd/0x170
[ 3022.387501][   T73]      do_syscall_64+0xc6/0x1e0
[ 3022.387501][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3022.387501][   T73] 
[ 3022.389239][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3022.389536][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3022.389536][   T73]      netdev_get_by_index+0x5e/0x80
[ 3022.389536][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3022.389536][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3022.389536][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3022.389536][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3022.389536][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3022.389536][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3022.389536][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3022.389536][   T73]      addrconf_dad_begin+0x310/0x670
[ 3022.389536][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3022.389536][   T73]      process_one_work+0x84d/0x18a0
[ 3022.389536][   T73]      worker_thread+0x587/0xd30
[ 3022.389536][   T73]      kthread+0x28a/0x350
[ 3022.389536][   T73]      ret_from_fork+0x31/0x70
[ 3022.389536][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3022.389536][   T73] 
[ 3022.391469][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3022.391469][   T73]      netdev_get_by_index+0x5e/0x80
[ 3022.391469][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3022.391469][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3022.391469][   T73]      ip6_route_add+0x1c/0x140
[ 3022.391469][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3022.391469][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3022.391469][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3022.391469][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3022.391469][   T73]      netlink_rcv_skb+0x130/0x360
[ 3022.391469][   T73]      netlink_unicast+0x449/0x710
[ 3022.391469][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3022.391469][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3022.391469][   T73]      ___sys_sendmsg+0xee/0x170
[ 3022.391469][   T73]      __sys_sendmsg+0xcd/0x170
[ 3022.391469][   T73]      do_syscall_64+0xc6/0x1e0
[ 3022.391469][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3022.391469][   T73] 
[ 3022.393491][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3022.393491][   T73]      netdev_get_by_index+0x5e/0x80
[ 3022.393491][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3022.393491][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3022.393491][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3022.393491][   T73]      ipv6_add_addr+0x411/0x2000
[ 3022.393491][   T73]      inet6_addr_add+0x30e/0xa40
[ 3022.393491][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3022.393491][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3022.393491][   T73]      netlink_rcv_skb+0x130/0x360
[ 3022.393491][   T73]      netlink_unicast+0x449/0x710
[ 3022.393491][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3022.393491][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3022.393491][   T73]      ___sys_sendmsg+0xee/0x170
[ 3022.393491][   T73]      __sys_sendmsg+0xcd/0x170
[ 3022.393491][   T73]      do_syscall_64+0xc6/0x1e0
[ 3022.393491][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3022.393491][   T73] 
[ 3022.395515][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3022.395515][   T73]      netdev_get_by_index+0x5e/0x80
[ 3022.395515][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3022.395515][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3022.395515][   T73]      ip6_route_add+0x1c/0x140
[ 3022.395515][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3022.395515][   T73]      addrconf_add_dev+0xe2/0x170
[ 3022.395515][   T73]      inet6_addr_add+0x12f/0xa40
[ 3022.395515][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3022.395515][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3022.395515][   T73]      netlink_rcv_skb+0x130/0x360
[ 3022.395515][   T73]      netlink_unicast+0x449/0x710
[ 3022.395515][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3022.395515][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3022.395515][   T73]      ___sys_sendmsg+0xee/0x170
[ 3022.395515][   T73]      __sys_sendmsg+0xcd/0x170
[ 3022.395515][   T73]      do_syscall_64+0xc6/0x1e0
[ 3022.395515][   T73] 
[ 3022.398025][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3022.398025][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3022.398025][   T73]      ipv6_find_idev+0x102/0x170
[ 3022.398025][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3022.398025][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3022.398025][   T73]      netlink_rcv_skb+0x130/0x360
[ 3022.398025][   T73]      netlink_unicast+0x449/0x710
[ 3022.398025][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3022.398025][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3022.398025][   T73]      ___sys_sendmsg+0xee/0x170
[ 3022.398025][   T73]      __sys_sendmsg+0xcd/0x170
[ 3022.398025][   T73]      do_syscall_64+0xc6/0x1e0
[ 3022.398025][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3022.398025][   T73] 
[ 3022.399576][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3022.399576][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3022.399576][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3022.399576][   T73]      ipv6_find_idev+0x102/0x170
[ 3022.399576][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3022.399576][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3022.399576][   T73]      netlink_rcv_skb+0x130/0x360
[ 3022.399576][   T73]      netlink_unicast+0x449/0x710
[ 3022.399576][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3022.399576][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3022.399576][   T73]      ___sys_sendmsg+0xee/0x170
[ 3022.399576][   T73]      __sys_sendmsg+0xcd/0x170
[ 3022.399576][   T73]      do_syscall_64+0xc6/0x1e0
[ 3022.399576][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3022.399576][   T73] 
[ 3022.401316][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3022.401598][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3022.401598][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3022.401598][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3022.401598][   T73]      fib6_nh_init+0xa22/0x1580
[ 3022.401598][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3022.401598][   T73]      ip6_route_add+0x1c/0x140
[ 3022.401598][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3022.401598][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3022.401598][   T73]      netlink_rcv_skb+0x130/0x360
[ 3022.401598][   T73]      netlink_unicast+0x449/0x710
[ 3022.401598][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3022.401598][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3022.401598][   T73]      ___sys_sendmsg+0xee/0x170
[ 3022.401598][   T73]      __sys_sendmsg+0xcd/0x170
[ 3022.401598][   T73]      do_syscall_64+0xc6/0x1e0
[ 3022.401598][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3022.401598][   T73] 
[ 3022.404088][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3022.404088][   T73]      dst_init+0x84/0x4a0
[ 3022.404088][   T73]      dst_alloc+0x97/0x150
[ 3022.404088][   T73]      ip6_dst_alloc+0x23/0x90
[ 3022.404088][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3022.404088][   T73]      ip6_pol_route+0x56f/0x840
[ 3022.404088][   T73]      fib6_rule_lookup+0x456/0x630
[ 3022.404088][   T73]      ip6_route_input+0x59c/0xa50
[ 3022.404088][   T73]      ipv6_rcv+0x397/0x810
[ 3022.404088][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3022.404088][   T73]      process_backlog+0x101/0x620
[ 3022.404088][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3022.404088][   T73]      net_rx_action+0x495/0xbe0
[ 3022.404088][   T73]      __do_softirq+0x1b5/0x7f6
[ 3022.404088][   T73] 
[ 3022.405984][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3022.405984][   T73]      netdev_get_by_index+0x5e/0x80
[ 3022.405984][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3022.405984][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3022.405984][   T73]      ip6_route_add+0x1c/0x140
[ 3022.405984][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3022.405984][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3022.405984][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3022.405984][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3022.405984][   T73]      netlink_rcv_skb+0x130/0x360
[ 3022.405984][   T73]      netlink_unicast+0x449/0x710
[ 3022.405984][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3022.405984][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3022.405984][   T73]      ___sys_sendmsg+0xee/0x170
[ 3022.405984][   T73]      __sys_sendmsg+0xcd/0x170
[ 3022.405984][   T73]      do_syscall_64+0xc6/0x1e0
[ 3022.405984][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3022.405984][   T73] 
[ 3022.408245][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3022.408245][   T73]      netdev_get_by_index+0x5e/0x80
[ 3022.408245][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3022.408245][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3022.408245][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3022.408245][   T73]      ipv6_add_addr+0x411/0x2000
[ 3022.408245][   T73]      inet6_addr_add+0x30e/0xa40
[ 3022.408245][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3022.408245][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3022.408245][   T73]      netlink_rcv_skb+0x130/0x360
[ 3022.408245][   T73]      netlink_unicast+0x449/0x710
[ 3022.408245][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3022.408245][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3022.408245][   T73]      ___sys_sendmsg+0xee/0x170
[ 3022.408245][   T73]      __sys_sendmsg+0xcd/0x170
[ 3022.408245][   T73]      do_syscall_64+0xc6/0x1e0
[ 3022.408245][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3022.408245][   T73] 
[ 3022.410495][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3022.410495][   T73]      netdev_get_by_index+0x5e/0x80
[ 3022.410495][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3022.410495][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3022.410495][   T73]      ip6_route_add+0x1c/0x140
[ 3022.410495][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3022.410495][   T73]      addrconf_add_dev+0xe2/0x170
[ 3022.410495][   T73]      inet6_addr_add+0x12f/0xa40
[ 3022.410495][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3022.410495][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3022.410495][   T73]      netlink_rcv_skb+0x130/0x360
[ 3022.410495][   T73]      netlink_unicast+0x449/0x710
[ 3022.410495][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3022.410495][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3022.410495][   T73]      ___sys_sendmsg+0xee/0x170
[ 3022.410495][   T73]      __sys_sendmsg+0xcd/0x170
[ 3022.410495][   T73]      do_syscall_64+0xc6/0x1e0
[ 3022.410495][   T73] 
[ 3022.412665][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3022.412665][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3022.412665][   T73]      ipv6_find_idev+0x102/0x170
[ 3022.412665][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3022.412665][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3022.412665][   T73]      netlink_rcv_skb+0x130/0x360
[ 3022.412665][   T73]      netlink_unicast+0x449/0x710
[ 3022.412665][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3022.412665][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3022.412665][   T73]      ___sys_sendmsg+0xee/0x170
[ 3022.412665][   T73]      __sys_sendmsg+0xcd/0x170
[ 3022.412665][   T73]      do_syscall_64+0xc6/0x1e0
[ 3022.412665][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3022.412665][   T73] 
[ 3022.414555][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3022.414555][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3022.414555][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3022.414555][   T73]      ipv6_find_idev+0x102/0x170
[ 3022.414555][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3022.414555][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3022.414555][   T73]      netlink_rcv_skb+0x130/0x360
[ 3022.414555][   T73]      netlink_unicast+0x449/0x710
[ 3022.414555][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3022.414555][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3022.414555][   T73]      ___sys_sendmsg+0xee/0x170
[ 3022.414555][   T73]      __sys_sendmsg+0xcd/0x170
[ 3022.414555][   T73]      do_syscall_64+0xc6/0x1e0
[ 3022.414555][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3022.414555][   T73] 
[ 3022.416671][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3022.416971][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3022.416971][   T73]      netdev_get_by_index+0x5e/0x80
[ 3022.416971][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3022.416971][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3022.416971][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3022.416971][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3022.416971][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3022.416971][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3022.416971][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3022.416971][   T73]      addrconf_dad_begin+0x310/0x670
[ 3022.416971][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3022.416971][   T73]      process_one_work+0x84d/0x18a0
[ 3022.416971][   T73]      worker_thread+0x587/0xd30
[ 3022.416971][   T73]      kthread+0x28a/0x350
[ 3022.416971][   T73]      ret_from_fork+0x31/0x70
[ 3022.416971][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3022.416971][   T73] 
[ 3022.419318][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3022.419318][   T73]      netdev_get_by_index+0x5e/0x80
[ 3022.419318][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3022.419318][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3022.419318][   T73]      ip6_route_add+0x1c/0x140
[ 3022.419318][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3022.419318][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3022.419318][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3022.419318][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3022.419318][   T73]      netlink_rcv_skb+0x130/0x360
[ 3022.419318][   T73]      netlink_unicast+0x449/0x710
[ 3022.419318][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3022.419318][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3022.419318][   T73]      ___sys_sendmsg+0xee/0x170
[ 3022.419318][   T73]      __sys_sendmsg+0xcd/0x170
[ 3022.419318][   T73]      do_syscall_64+0xc6/0x1e0
[ 3022.419318][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3022.419318][   T73] 
[ 3022.421708][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3022.421708][   T73]      netdev_get_by_index+0x5e/0x80
[ 3022.421708][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3022.421708][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3022.421708][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3022.421708][   T73]      ipv6_add_addr+0x411/0x2000
[ 3022.421708][   T73]      inet6_addr_add+0x30e/0xa40
[ 3022.421708][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3022.421708][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3022.421708][   T73]      netlink_rcv_skb+0x130/0x360
[ 3022.421708][   T73]      netlink_unicast+0x449/0x710
[ 3022.421708][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3022.421708][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3022.421708][   T73]      ___sys_sendmsg+0xee/0x170
[ 3022.421708][   T73]      __sys_sendmsg+0xcd/0x170
[ 3022.421708][   T73]      do_syscall_64+0xc6/0x1e0
[ 3022.421708][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3022.421708][   T73] 
[ 3022.423914][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3022.423914][   T73]      netdev_get_by_index+0x5e/0x80
[ 3022.423914][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3022.423914][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3022.423914][   T73]      ip6_route_add+0x1c/0x140
[ 3022.423914][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3022.423914][   T73]      addrconf_add_dev+0xe2/0x170
[ 3022.423914][   T73]      inet6_addr_add+0x12f/0xa40
[ 3022.423914][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3022.423914][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3022.423914][   T73]      netlink_rcv_skb+0x130/0x360
[ 3022.423914][   T73]      netlink_unicast+0x449/0x710
[ 3022.423914][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3022.423914][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3022.423914][   T73]      ___sys_sendmsg+0xee/0x170
[ 3022.423914][   T73]      __sys_sendmsg+0xcd/0x170
[ 3022.423914][   T73]      do_syscall_64+0xc6/0x1e0
[ 3022.423914][   T73] 
[ 3022.426208][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3022.426208][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3022.426208][   T73]      ipv6_find_idev+0x102/0x170
[ 3022.426208][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3022.426208][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3022.426208][   T73]      netlink_rcv_skb+0x130/0x360
[ 3022.426208][   T73]      netlink_unicast+0x449/0x710
[ 3022.426208][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3022.426208][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3022.426208][   T73]      ___sys_sendmsg+0xee/0x170
[ 3022.426208][   T73]      __sys_sendmsg+0xcd/0x170
[ 3022.426208][   T73]      do_syscall_64+0xc6/0x1e0
[ 3022.426208][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3022.426208][   T73] 
[ 3022.427939][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3022.427939][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3022.427939][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3022.427939][   T73]      ipv6_find_idev+0x102/0x170
[ 3022.427939][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3022.427939][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3022.427939][   T73]      netlink_rcv_skb+0x130/0x360
[ 3022.427939][   T73]      netlink_unicast+0x449/0x710
[ 3022.427939][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3022.427939][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3022.427939][   T73]      ___sys_sendmsg+0xee/0x170
[ 3022.427939][   T73]      __sys_sendmsg+0xcd/0x170
[ 3022.427939][   T73]      do_syscall_64+0xc6/0x1e0
[ 3022.427939][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3022.427939][   T73] 
[ 3032.679745][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3032.680228][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3032.680228][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3032.680228][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3032.680228][   T73]      fib6_nh_init+0xa22/0x1580
[ 3032.680228][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3032.680228][   T73]      ip6_route_add+0x1c/0x140
[ 3032.680228][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3032.680228][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3032.680228][   T73]      netlink_rcv_skb+0x130/0x360
[ 3032.680228][   T73]      netlink_unicast+0x449/0x710
[ 3032.680228][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3032.680228][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3032.680228][   T73]      ___sys_sendmsg+0xee/0x170
[ 3032.680228][   T73]      __sys_sendmsg+0xcd/0x170
[ 3032.680228][   T73]      do_syscall_64+0xc6/0x1e0
[ 3032.680228][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3032.680228][   T73] 
[ 3032.682129][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3032.682129][   T73]      dst_init+0x84/0x4a0
[ 3032.682129][   T73]      dst_alloc+0x97/0x150
[ 3032.682129][   T73]      ip6_dst_alloc+0x23/0x90
[ 3032.682129][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3032.682129][   T73]      ip6_pol_route+0x56f/0x840
[ 3032.682129][   T73]      fib6_rule_lookup+0x456/0x630
[ 3032.682129][   T73]      ip6_route_input+0x59c/0xa50
[ 3032.682129][   T73]      ipv6_rcv+0x397/0x810
[ 3032.682129][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3032.682129][   T73]      process_backlog+0x101/0x620
[ 3032.682129][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3032.682129][   T73]      net_rx_action+0x495/0xbe0
[ 3032.682129][   T73]      __do_softirq+0x1b5/0x7f6
[ 3032.682129][   T73] 
[ 3032.683754][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3032.683754][   T73]      netdev_get_by_index+0x5e/0x80
[ 3032.683754][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3032.683754][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3032.683754][   T73]      ip6_route_add+0x1c/0x140
[ 3032.683754][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3032.683754][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3032.683754][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3032.683754][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3032.683754][   T73]      netlink_rcv_skb+0x130/0x360
[ 3032.683754][   T73]      netlink_unicast+0x449/0x710
[ 3032.683754][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3032.683754][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3032.683754][   T73]      ___sys_sendmsg+0xee/0x170
[ 3032.683754][   T73]      __sys_sendmsg+0xcd/0x170
[ 3032.683754][   T73]      do_syscall_64+0xc6/0x1e0
[ 3032.683754][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3032.683754][   T73] 
[ 3032.685776][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3032.685776][   T73]      netdev_get_by_index+0x5e/0x80
[ 3032.685776][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3032.685776][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3032.685776][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3032.685776][   T73]      ipv6_add_addr+0x411/0x2000
[ 3032.685776][   T73]      inet6_addr_add+0x30e/0xa40
[ 3032.685776][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3032.685776][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3032.685776][   T73]      netlink_rcv_skb+0x130/0x360
[ 3032.685776][   T73]      netlink_unicast+0x449/0x710
[ 3032.685776][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3032.685776][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3032.685776][   T73]      ___sys_sendmsg+0xee/0x170
[ 3032.685776][   T73]      __sys_sendmsg+0xcd/0x170
[ 3032.685776][   T73]      do_syscall_64+0xc6/0x1e0
[ 3032.685776][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3032.685776][   T73] 
[ 3032.687775][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3032.687775][   T73]      netdev_get_by_index+0x5e/0x80
[ 3032.687775][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3032.687775][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3032.687775][   T73]      ip6_route_add+0x1c/0x140
[ 3032.687775][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3032.687775][   T73]      addrconf_add_dev+0xe2/0x170
[ 3032.687775][   T73]      inet6_addr_add+0x12f/0xa40
[ 3032.687775][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3032.687775][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3032.687775][   T73]      netlink_rcv_skb+0x130/0x360
[ 3032.687775][   T73]      netlink_unicast+0x449/0x710
[ 3032.687775][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3032.687775][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3032.687775][   T73]      ___sys_sendmsg+0xee/0x170
[ 3032.687775][   T73]      __sys_sendmsg+0xcd/0x170
[ 3032.687775][   T73]      do_syscall_64+0xc6/0x1e0
[ 3032.687775][   T73] 
[ 3032.689728][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3032.689728][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3032.689728][   T73]      ipv6_find_idev+0x102/0x170
[ 3032.689728][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3032.689728][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3032.689728][   T73]      netlink_rcv_skb+0x130/0x360
[ 3032.689728][   T73]      netlink_unicast+0x449/0x710
[ 3032.689728][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3032.689728][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3032.689728][   T73]      ___sys_sendmsg+0xee/0x170
[ 3032.689728][   T73]      __sys_sendmsg+0xcd/0x170
[ 3032.689728][   T73]      do_syscall_64+0xc6/0x1e0
[ 3032.689728][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3032.689728][   T73] 
[ 3032.691273][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3032.691273][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3032.691273][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3032.691273][   T73]      ipv6_find_idev+0x102/0x170
[ 3032.691273][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3032.691273][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3032.691273][   T73]      netlink_rcv_skb+0x130/0x360
[ 3032.691273][   T73]      netlink_unicast+0x449/0x710
[ 3032.691273][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3032.691273][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3032.691273][   T73]      ___sys_sendmsg+0xee/0x170
[ 3032.691273][   T73]      __sys_sendmsg+0xcd/0x170
[ 3032.691273][   T73]      do_syscall_64+0xc6/0x1e0
[ 3032.691273][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3032.691273][   T73] 
[ 3032.692965][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3032.693244][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3032.693244][   T73]      netdev_get_by_index+0x5e/0x80
[ 3032.693244][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3032.693244][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3032.693244][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3032.693244][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3032.693244][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3032.693244][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3032.693244][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3032.693244][   T73]      addrconf_dad_begin+0x310/0x670
[ 3032.693244][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3032.693244][   T73]      process_one_work+0x84d/0x18a0
[ 3032.693244][   T73]      worker_thread+0x587/0xd30
[ 3032.693244][   T73]      kthread+0x28a/0x350
[ 3032.693244][   T73]      ret_from_fork+0x31/0x70
[ 3032.693244][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3032.693244][   T73] 
[ 3032.695146][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3032.695146][   T73]      netdev_get_by_index+0x5e/0x80
[ 3032.695146][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3032.695146][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3032.695146][   T73]      ip6_route_add+0x1c/0x140
[ 3032.695146][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3032.695146][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3032.695146][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3032.695146][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3032.695146][   T73]      netlink_rcv_skb+0x130/0x360
[ 3032.695146][   T73]      netlink_unicast+0x449/0x710
[ 3032.695146][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3032.695146][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3032.695146][   T73]      ___sys_sendmsg+0xee/0x170
[ 3032.695146][   T73]      __sys_sendmsg+0xcd/0x170
[ 3032.695146][   T73]      do_syscall_64+0xc6/0x1e0
[ 3032.695146][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3032.695146][   T73] 
[ 3032.697142][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3032.697142][   T73]      netdev_get_by_index+0x5e/0x80
[ 3032.697142][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3032.697142][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3032.697142][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3032.697142][   T73]      ipv6_add_addr+0x411/0x2000
[ 3032.697142][   T73]      inet6_addr_add+0x30e/0xa40
[ 3032.697142][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3032.697142][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3032.697142][   T73]      netlink_rcv_skb+0x130/0x360
[ 3032.697142][   T73]      netlink_unicast+0x449/0x710
[ 3032.697142][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3032.697142][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3032.697142][   T73]      ___sys_sendmsg+0xee/0x170
[ 3032.697142][   T73]      __sys_sendmsg+0xcd/0x170
[ 3032.697142][   T73]      do_syscall_64+0xc6/0x1e0
[ 3032.697142][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3032.697142][   T73] 
[ 3032.699128][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3032.699128][   T73]      netdev_get_by_index+0x5e/0x80
[ 3032.699128][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3032.699128][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3032.699128][   T73]      ip6_route_add+0x1c/0x140
[ 3032.699128][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3032.699128][   T73]      addrconf_add_dev+0xe2/0x170
[ 3032.699128][   T73]      inet6_addr_add+0x12f/0xa40
[ 3032.699128][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3032.699128][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3032.699128][   T73]      netlink_rcv_skb+0x130/0x360
[ 3032.699128][   T73]      netlink_unicast+0x449/0x710
[ 3032.699128][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3032.699128][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3032.699128][   T73]      ___sys_sendmsg+0xee/0x170
[ 3032.699128][   T73]      __sys_sendmsg+0xcd/0x170
[ 3032.699128][   T73]      do_syscall_64+0xc6/0x1e0
[ 3032.699128][   T73] 
[ 3032.701111][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3032.701111][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3032.701111][   T73]      ipv6_find_idev+0x102/0x170
[ 3032.701111][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3032.701111][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3032.701111][   T73]      netlink_rcv_skb+0x130/0x360
[ 3032.701111][   T73]      netlink_unicast+0x449/0x710
[ 3032.701111][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3032.701111][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3032.701111][   T73]      ___sys_sendmsg+0xee/0x170
[ 3032.701111][   T73]      __sys_sendmsg+0xcd/0x170
[ 3032.701111][   T73]      do_syscall_64+0xc6/0x1e0
[ 3032.701111][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3032.701111][   T73] 
[ 3032.702664][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3032.702664][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3032.702664][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3032.702664][   T73]      ipv6_find_idev+0x102/0x170
[ 3032.702664][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3032.702664][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3032.702664][   T73]      netlink_rcv_skb+0x130/0x360
[ 3032.702664][   T73]      netlink_unicast+0x449/0x710
[ 3032.702664][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3032.702664][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3032.702664][   T73]      ___sys_sendmsg+0xee/0x170
[ 3032.702664][   T73]      __sys_sendmsg+0xcd/0x170
[ 3032.702664][   T73]      do_syscall_64+0xc6/0x1e0
[ 3032.702664][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3032.702664][   T73] 
[ 3032.704344][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3032.704617][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3032.704617][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3032.704617][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3032.704617][   T73]      fib6_nh_init+0xa22/0x1580
[ 3032.704617][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3032.704617][   T73]      ip6_route_add+0x1c/0x140
[ 3032.704617][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3032.704617][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3032.704617][   T73]      netlink_rcv_skb+0x130/0x360
[ 3032.704617][   T73]      netlink_unicast+0x449/0x710
[ 3032.704617][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3032.704617][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3032.704617][   T73]      ___sys_sendmsg+0xee/0x170
[ 3032.704617][   T73]      __sys_sendmsg+0xcd/0x170
[ 3032.704617][   T73]      do_syscall_64+0xc6/0x1e0
[ 3032.704617][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3032.704617][   T73] 
[ 3032.706669][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3032.706669][   T73]      dst_init+0x84/0x4a0
[ 3032.706669][   T73]      dst_alloc+0x97/0x150
[ 3032.706669][   T73]      ip6_dst_alloc+0x23/0x90
[ 3032.706669][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3032.706669][   T73]      ip6_pol_route+0x56f/0x840
[ 3032.706669][   T73]      fib6_rule_lookup+0x456/0x630
[ 3032.706669][   T73]      ip6_route_input+0x59c/0xa50
[ 3032.706669][   T73]      ipv6_rcv+0x397/0x810
[ 3032.706669][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3032.706669][   T73]      process_backlog+0x101/0x620
[ 3032.706669][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3032.706669][   T73]      net_rx_action+0x495/0xbe0
[ 3032.706669][   T73]      __do_softirq+0x1b5/0x7f6
[ 3032.706669][   T73] 
[ 3032.708482][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3032.708482][   T73]      netdev_get_by_index+0x5e/0x80
[ 3032.708482][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3032.708482][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3032.708482][   T73]      ip6_route_add+0x1c/0x140
[ 3032.708482][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3032.708482][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3032.708482][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3032.708482][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3032.708482][   T73]      netlink_rcv_skb+0x130/0x360
[ 3032.708482][   T73]      netlink_unicast+0x449/0x710
[ 3032.708482][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3032.708482][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3032.708482][   T73]      ___sys_sendmsg+0xee/0x170
[ 3032.708482][   T73]      __sys_sendmsg+0xcd/0x170
[ 3032.708482][   T73]      do_syscall_64+0xc6/0x1e0
[ 3032.708482][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3032.708482][   T73] 
[ 3032.710715][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3032.710715][   T73]      netdev_get_by_index+0x5e/0x80
[ 3032.710715][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3032.710715][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3032.710715][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3032.710715][   T73]      ipv6_add_addr+0x411/0x2000
[ 3032.710715][   T73]      inet6_addr_add+0x30e/0xa40
[ 3032.710715][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3032.710715][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3032.710715][   T73]      netlink_rcv_skb+0x130/0x360
[ 3032.710715][   T73]      netlink_unicast+0x449/0x710
[ 3032.710715][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3032.710715][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3032.710715][   T73]      ___sys_sendmsg+0xee/0x170
[ 3032.710715][   T73]      __sys_sendmsg+0xcd/0x170
[ 3032.710715][   T73]      do_syscall_64+0xc6/0x1e0
[ 3032.710715][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3032.710715][   T73] 
[ 3032.713015][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3032.713015][   T73]      netdev_get_by_index+0x5e/0x80
[ 3032.713015][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3032.713015][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3032.713015][   T73]      ip6_route_add+0x1c/0x140
[ 3032.713015][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3032.713015][   T73]      addrconf_add_dev+0xe2/0x170
[ 3032.713015][   T73]      inet6_addr_add+0x12f/0xa40
[ 3032.713015][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3032.713015][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3032.713015][   T73]      netlink_rcv_skb+0x130/0x360
[ 3032.713015][   T73]      netlink_unicast+0x449/0x710
[ 3032.713015][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3032.713015][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3032.713015][   T73]      ___sys_sendmsg+0xee/0x170
[ 3032.713015][   T73]      __sys_sendmsg+0xcd/0x170
[ 3032.713015][   T73]      do_syscall_64+0xc6/0x1e0
[ 3032.713015][   T73] 
[ 3032.715211][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3032.715211][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3032.715211][   T73]      ipv6_find_idev+0x102/0x170
[ 3032.715211][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3032.715211][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3032.715211][   T73]      netlink_rcv_skb+0x130/0x360
[ 3032.715211][   T73]      netlink_unicast+0x449/0x710
[ 3032.715211][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3032.715211][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3032.715211][   T73]      ___sys_sendmsg+0xee/0x170
[ 3032.715211][   T73]      __sys_sendmsg+0xcd/0x170
[ 3032.715211][   T73]      do_syscall_64+0xc6/0x1e0
[ 3032.715211][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3032.715211][   T73] 
[ 3032.716942][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3032.716942][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3032.716942][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3032.716942][   T73]      ipv6_find_idev+0x102/0x170
[ 3032.716942][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3032.716942][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3032.716942][   T73]      netlink_rcv_skb+0x130/0x360
[ 3032.716942][   T73]      netlink_unicast+0x449/0x710
[ 3032.716942][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3032.716942][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3032.716942][   T73]      ___sys_sendmsg+0xee/0x170
[ 3032.716942][   T73]      __sys_sendmsg+0xcd/0x170
[ 3032.716942][   T73]      do_syscall_64+0xc6/0x1e0
[ 3032.716942][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3032.716942][   T73] 
[ 3032.718796][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3032.719072][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3032.719072][   T73]      netdev_get_by_index+0x5e/0x80
[ 3032.719072][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3032.719072][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3032.719072][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3032.719072][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3032.719072][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3032.719072][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3032.719072][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3032.719072][   T73]      addrconf_dad_begin+0x310/0x670
[ 3032.719072][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3032.719072][   T73]      process_one_work+0x84d/0x18a0
[ 3032.719072][   T73]      worker_thread+0x587/0xd30
[ 3032.719072][   T73]      kthread+0x28a/0x350
[ 3032.719072][   T73]      ret_from_fork+0x31/0x70
[ 3032.719072][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3032.719072][   T73] 
[ 3032.721225][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3032.721225][   T73]      netdev_get_by_index+0x5e/0x80
[ 3032.721225][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3032.721225][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3032.721225][   T73]      ip6_route_add+0x1c/0x140
[ 3032.721225][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3032.721225][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3032.721225][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3032.721225][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3032.721225][   T73]      netlink_rcv_skb+0x130/0x360
[ 3032.721225][   T73]      netlink_unicast+0x449/0x710
[ 3032.721225][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3032.721225][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3032.721225][   T73]      ___sys_sendmsg+0xee/0x170
[ 3032.721225][   T73]      __sys_sendmsg+0xcd/0x170
[ 3032.721225][   T73]      do_syscall_64+0xc6/0x1e0
[ 3032.721225][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3032.721225][   T73] 
[ 3032.723527][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3032.723527][   T73]      netdev_get_by_index+0x5e/0x80
[ 3032.723527][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3032.723527][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3032.723527][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3032.723527][   T73]      ipv6_add_addr+0x411/0x2000
[ 3032.723527][   T73]      inet6_addr_add+0x30e/0xa40
[ 3032.723527][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3032.723527][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3032.723527][   T73]      netlink_rcv_skb+0x130/0x360
[ 3032.723527][   T73]      netlink_unicast+0x449/0x710
[ 3032.723527][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3032.723527][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3032.723527][   T73]      ___sys_sendmsg+0xee/0x170
[ 3032.723527][   T73]      __sys_sendmsg+0xcd/0x170
[ 3032.723527][   T73]      do_syscall_64+0xc6/0x1e0
[ 3032.723527][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3032.723527][   T73] 
[ 3032.725754][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3032.725754][   T73]      netdev_get_by_index+0x5e/0x80
[ 3032.725754][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3032.725754][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3032.725754][   T73]      ip6_route_add+0x1c/0x140
[ 3032.725754][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3032.725754][   T73]      addrconf_add_dev+0xe2/0x170
[ 3032.725754][   T73]      inet6_addr_add+0x12f/0xa40
[ 3032.725754][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3032.725754][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3032.725754][   T73]      netlink_rcv_skb+0x130/0x360
[ 3032.725754][   T73]      netlink_unicast+0x449/0x710
[ 3032.725754][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3032.725754][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3032.725754][   T73]      ___sys_sendmsg+0xee/0x170
[ 3032.725754][   T73]      __sys_sendmsg+0xcd/0x170
[ 3032.725754][   T73]      do_syscall_64+0xc6/0x1e0
[ 3032.725754][   T73] 
[ 3032.727892][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3032.727892][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3032.727892][   T73]      ipv6_find_idev+0x102/0x170
[ 3032.727892][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3032.727892][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3032.727892][   T73]      netlink_rcv_skb+0x130/0x360
[ 3032.727892][   T73]      netlink_unicast+0x449/0x710
[ 3032.727892][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3032.727892][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3032.727892][   T73]      ___sys_sendmsg+0xee/0x170
[ 3032.727892][   T73]      __sys_sendmsg+0xcd/0x170
[ 3032.727892][   T73]      do_syscall_64+0xc6/0x1e0
[ 3032.727892][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3032.727892][   T73] 
[ 3032.729607][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3032.729607][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3032.729607][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3032.729607][   T73]      ipv6_find_idev+0x102/0x170
[ 3032.729607][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3032.729607][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3032.729607][   T73]      netlink_rcv_skb+0x130/0x360
[ 3032.729607][   T73]      netlink_unicast+0x449/0x710
[ 3032.729607][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3032.729607][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3032.729607][   T73]      ___sys_sendmsg+0xee/0x170
[ 3032.729607][   T73]      __sys_sendmsg+0xcd/0x170
[ 3032.729607][   T73]      do_syscall_64+0xc6/0x1e0
[ 3032.729607][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3032.729607][   T73] 
[ 3042.831776][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3042.832283][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3042.832283][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3042.832283][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3042.832283][   T73]      fib6_nh_init+0xa22/0x1580
[ 3042.832283][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3042.832283][   T73]      ip6_route_add+0x1c/0x140
[ 3042.832283][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3042.832283][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3042.832283][   T73]      netlink_rcv_skb+0x130/0x360
[ 3042.832283][   T73]      netlink_unicast+0x449/0x710
[ 3042.832283][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3042.832283][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3042.832283][   T73]      ___sys_sendmsg+0xee/0x170
[ 3042.832283][   T73]      __sys_sendmsg+0xcd/0x170
[ 3042.832283][   T73]      do_syscall_64+0xc6/0x1e0
[ 3042.832283][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3042.832283][   T73] 
[ 3042.834175][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3042.834175][   T73]      dst_init+0x84/0x4a0
[ 3042.834175][   T73]      dst_alloc+0x97/0x150
[ 3042.834175][   T73]      ip6_dst_alloc+0x23/0x90
[ 3042.834175][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3042.834175][   T73]      ip6_pol_route+0x56f/0x840
[ 3042.834175][   T73]      fib6_rule_lookup+0x456/0x630
[ 3042.834175][   T73]      ip6_route_input+0x59c/0xa50
[ 3042.834175][   T73]      ipv6_rcv+0x397/0x810
[ 3042.834175][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3042.834175][   T73]      process_backlog+0x101/0x620
[ 3042.834175][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3042.834175][   T73]      net_rx_action+0x495/0xbe0
[ 3042.834175][   T73]      __do_softirq+0x1b5/0x7f6
[ 3042.834175][   T73] 
[ 3042.835827][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3042.835827][   T73]      netdev_get_by_index+0x5e/0x80
[ 3042.835827][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3042.835827][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3042.835827][   T73]      ip6_route_add+0x1c/0x140
[ 3042.835827][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3042.835827][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3042.835827][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3042.835827][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3042.835827][   T73]      netlink_rcv_skb+0x130/0x360
[ 3042.835827][   T73]      netlink_unicast+0x449/0x710
[ 3042.835827][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3042.835827][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3042.835827][   T73]      ___sys_sendmsg+0xee/0x170
[ 3042.835827][   T73]      __sys_sendmsg+0xcd/0x170
[ 3042.835827][   T73]      do_syscall_64+0xc6/0x1e0
[ 3042.835827][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3042.835827][   T73] 
[ 3042.837832][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3042.837832][   T73]      netdev_get_by_index+0x5e/0x80
[ 3042.837832][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3042.837832][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3042.837832][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3042.837832][   T73]      ipv6_add_addr+0x411/0x2000
[ 3042.837832][   T73]      inet6_addr_add+0x30e/0xa40
[ 3042.837832][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3042.837832][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3042.837832][   T73]      netlink_rcv_skb+0x130/0x360
[ 3042.837832][   T73]      netlink_unicast+0x449/0x710
[ 3042.837832][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3042.837832][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3042.837832][   T73]      ___sys_sendmsg+0xee/0x170
[ 3042.837832][   T73]      __sys_sendmsg+0xcd/0x170
[ 3042.837832][   T73]      do_syscall_64+0xc6/0x1e0
[ 3042.837832][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3042.837832][   T73] 
[ 3042.839834][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3042.839834][   T73]      netdev_get_by_index+0x5e/0x80
[ 3042.839834][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3042.839834][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3042.839834][   T73]      ip6_route_add+0x1c/0x140
[ 3042.839834][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3042.839834][   T73]      addrconf_add_dev+0xe2/0x170
[ 3042.839834][   T73]      inet6_addr_add+0x12f/0xa40
[ 3042.839834][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3042.839834][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3042.839834][   T73]      netlink_rcv_skb+0x130/0x360
[ 3042.839834][   T73]      netlink_unicast+0x449/0x710
[ 3042.839834][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3042.839834][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3042.839834][   T73]      ___sys_sendmsg+0xee/0x170
[ 3042.839834][   T73]      __sys_sendmsg+0xcd/0x170
[ 3042.839834][   T73]      do_syscall_64+0xc6/0x1e0
[ 3042.839834][   T73] 
[ 3042.841799][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3042.841799][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3042.841799][   T73]      ipv6_find_idev+0x102/0x170
[ 3042.841799][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3042.841799][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3042.841799][   T73]      netlink_rcv_skb+0x130/0x360
[ 3042.841799][   T73]      netlink_unicast+0x449/0x710
[ 3042.841799][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3042.841799][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3042.841799][   T73]      ___sys_sendmsg+0xee/0x170
[ 3042.841799][   T73]      __sys_sendmsg+0xcd/0x170
[ 3042.841799][   T73]      do_syscall_64+0xc6/0x1e0
[ 3042.841799][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3042.841799][   T73] 
[ 3042.843333][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3042.843333][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3042.843333][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3042.843333][   T73]      ipv6_find_idev+0x102/0x170
[ 3042.843333][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3042.843333][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3042.843333][   T73]      netlink_rcv_skb+0x130/0x360
[ 3042.843333][   T73]      netlink_unicast+0x449/0x710
[ 3042.843333][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3042.843333][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3042.843333][   T73]      ___sys_sendmsg+0xee/0x170
[ 3042.843333][   T73]      __sys_sendmsg+0xcd/0x170
[ 3042.843333][   T73]      do_syscall_64+0xc6/0x1e0
[ 3042.843333][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3042.843333][   T73] 
[ 3042.845043][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3042.845322][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3042.845322][   T73]      netdev_get_by_index+0x5e/0x80
[ 3042.845322][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3042.845322][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3042.845322][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3042.845322][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3042.845322][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3042.845322][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3042.845322][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3042.845322][   T73]      addrconf_dad_begin+0x310/0x670
[ 3042.845322][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3042.845322][   T73]      process_one_work+0x84d/0x18a0
[ 3042.845322][   T73]      worker_thread+0x587/0xd30
[ 3042.845322][   T73]      kthread+0x28a/0x350
[ 3042.845322][   T73]      ret_from_fork+0x31/0x70
[ 3042.845322][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3042.845322][   T73] 
[ 3042.847251][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3042.847251][   T73]      netdev_get_by_index+0x5e/0x80
[ 3042.847251][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3042.847251][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3042.847251][   T73]      ip6_route_add+0x1c/0x140
[ 3042.847251][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3042.847251][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3042.847251][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3042.847251][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3042.847251][   T73]      netlink_rcv_skb+0x130/0x360
[ 3042.847251][   T73]      netlink_unicast+0x449/0x710
[ 3042.847251][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3042.847251][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3042.847251][   T73]      ___sys_sendmsg+0xee/0x170
[ 3042.847251][   T73]      __sys_sendmsg+0xcd/0x170
[ 3042.847251][   T73]      do_syscall_64+0xc6/0x1e0
[ 3042.847251][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3042.847251][   T73] 
[ 3042.849241][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3042.849241][   T73]      netdev_get_by_index+0x5e/0x80
[ 3042.849241][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3042.849241][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3042.849241][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3042.849241][   T73]      ipv6_add_addr+0x411/0x2000
[ 3042.849241][   T73]      inet6_addr_add+0x30e/0xa40
[ 3042.849241][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3042.849241][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3042.849241][   T73]      netlink_rcv_skb+0x130/0x360
[ 3042.849241][   T73]      netlink_unicast+0x449/0x710
[ 3042.849241][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3042.849241][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3042.849241][   T73]      ___sys_sendmsg+0xee/0x170
[ 3042.849241][   T73]      __sys_sendmsg+0xcd/0x170
[ 3042.849241][   T73]      do_syscall_64+0xc6/0x1e0
[ 3042.849241][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3042.849241][   T73] 
[ 3042.851239][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3042.851239][   T73]      netdev_get_by_index+0x5e/0x80
[ 3042.851239][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3042.851239][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3042.851239][   T73]      ip6_route_add+0x1c/0x140
[ 3042.851239][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3042.851239][   T73]      addrconf_add_dev+0xe2/0x170
[ 3042.851239][   T73]      inet6_addr_add+0x12f/0xa40
[ 3042.851239][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3042.851239][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3042.851239][   T73]      netlink_rcv_skb+0x130/0x360
[ 3042.851239][   T73]      netlink_unicast+0x449/0x710
[ 3042.851239][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3042.851239][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3042.851239][   T73]      ___sys_sendmsg+0xee/0x170
[ 3042.851239][   T73]      __sys_sendmsg+0xcd/0x170
[ 3042.851239][   T73]      do_syscall_64+0xc6/0x1e0
[ 3042.851239][   T73] 
[ 3042.853191][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3042.853191][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3042.853191][   T73]      ipv6_find_idev+0x102/0x170
[ 3042.853191][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3042.853191][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3042.853191][   T73]      netlink_rcv_skb+0x130/0x360
[ 3042.853191][   T73]      netlink_unicast+0x449/0x710
[ 3042.853191][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3042.853191][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3042.853191][   T73]      ___sys_sendmsg+0xee/0x170
[ 3042.853191][   T73]      __sys_sendmsg+0xcd/0x170
[ 3042.853191][   T73]      do_syscall_64+0xc6/0x1e0
[ 3042.853191][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3042.853191][   T73] 
[ 3042.854724][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3042.854724][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3042.854724][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3042.854724][   T73]      ipv6_find_idev+0x102/0x170
[ 3042.854724][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3042.854724][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3042.854724][   T73]      netlink_rcv_skb+0x130/0x360
[ 3042.854724][   T73]      netlink_unicast+0x449/0x710
[ 3042.854724][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3042.854724][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3042.854724][   T73]      ___sys_sendmsg+0xee/0x170
[ 3042.854724][   T73]      __sys_sendmsg+0xcd/0x170
[ 3042.854724][   T73]      do_syscall_64+0xc6/0x1e0
[ 3042.854724][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3042.854724][   T73] 
[ 3042.856415][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3042.856685][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3042.856685][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3042.856685][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3042.856685][   T73]      fib6_nh_init+0xa22/0x1580
[ 3042.856685][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3042.856685][   T73]      ip6_route_add+0x1c/0x140
[ 3042.856685][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3042.856685][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3042.856685][   T73]      netlink_rcv_skb+0x130/0x360
[ 3042.856685][   T73]      netlink_unicast+0x449/0x710
[ 3042.856685][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3042.856685][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3042.856685][   T73]      ___sys_sendmsg+0xee/0x170
[ 3042.856685][   T73]      __sys_sendmsg+0xcd/0x170
[ 3042.856685][   T73]      do_syscall_64+0xc6/0x1e0
[ 3042.856685][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3042.856685][   T73] 
[ 3042.858732][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3042.858732][   T73]      dst_init+0x84/0x4a0
[ 3042.858732][   T73]      dst_alloc+0x97/0x150
[ 3042.858732][   T73]      ip6_dst_alloc+0x23/0x90
[ 3042.858732][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3042.858732][   T73]      ip6_pol_route+0x56f/0x840
[ 3042.858732][   T73]      fib6_rule_lookup+0x456/0x630
[ 3042.858732][   T73]      ip6_route_input+0x59c/0xa50
[ 3042.858732][   T73]      ipv6_rcv+0x397/0x810
[ 3042.858732][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3042.858732][   T73]      process_backlog+0x101/0x620
[ 3042.858732][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3042.858732][   T73]      net_rx_action+0x495/0xbe0
[ 3042.858732][   T73]      __do_softirq+0x1b5/0x7f6
[ 3042.858732][   T73] 
[ 3042.860608][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3042.860608][   T73]      netdev_get_by_index+0x5e/0x80
[ 3042.860608][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3042.860608][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3042.860608][   T73]      ip6_route_add+0x1c/0x140
[ 3042.860608][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3042.860608][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3042.860608][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3042.860608][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3042.860608][   T73]      netlink_rcv_skb+0x130/0x360
[ 3042.860608][   T73]      netlink_unicast+0x449/0x710
[ 3042.860608][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3042.860608][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3042.860608][   T73]      ___sys_sendmsg+0xee/0x170
[ 3042.860608][   T73]      __sys_sendmsg+0xcd/0x170
[ 3042.860608][   T73]      do_syscall_64+0xc6/0x1e0
[ 3042.860608][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3042.860608][   T73] 
[ 3042.862839][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3042.862839][   T73]      netdev_get_by_index+0x5e/0x80
[ 3042.862839][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3042.862839][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3042.862839][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3042.862839][   T73]      ipv6_add_addr+0x411/0x2000
[ 3042.862839][   T73]      inet6_addr_add+0x30e/0xa40
[ 3042.862839][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3042.862839][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3042.862839][   T73]      netlink_rcv_skb+0x130/0x360
[ 3042.862839][   T73]      netlink_unicast+0x449/0x710
[ 3042.862839][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3042.862839][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3042.862839][   T73]      ___sys_sendmsg+0xee/0x170
[ 3042.862839][   T73]      __sys_sendmsg+0xcd/0x170
[ 3042.862839][   T73]      do_syscall_64+0xc6/0x1e0
[ 3042.862839][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3042.862839][   T73] 
[ 3042.865083][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3042.865083][   T73]      netdev_get_by_index+0x5e/0x80
[ 3042.865083][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3042.865083][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3042.865083][   T73]      ip6_route_add+0x1c/0x140
[ 3042.865083][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3042.865083][   T73]      addrconf_add_dev+0xe2/0x170
[ 3042.865083][   T73]      inet6_addr_add+0x12f/0xa40
[ 3042.865083][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3042.865083][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3042.865083][   T73]      netlink_rcv_skb+0x130/0x360
[ 3042.865083][   T73]      netlink_unicast+0x449/0x710
[ 3042.865083][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3042.865083][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3042.865083][   T73]      ___sys_sendmsg+0xee/0x170
[ 3042.865083][   T73]      __sys_sendmsg+0xcd/0x170
[ 3042.865083][   T73]      do_syscall_64+0xc6/0x1e0
[ 3042.865083][   T73] 
[ 3042.867293][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3042.867293][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3042.867293][   T73]      ipv6_find_idev+0x102/0x170
[ 3042.867293][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3042.867293][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3042.867293][   T73]      netlink_rcv_skb+0x130/0x360
[ 3042.867293][   T73]      netlink_unicast+0x449/0x710
[ 3042.867293][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3042.867293][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3042.867293][   T73]      ___sys_sendmsg+0xee/0x170
[ 3042.867293][   T73]      __sys_sendmsg+0xcd/0x170
[ 3042.867293][   T73]      do_syscall_64+0xc6/0x1e0
[ 3042.867293][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3042.867293][   T73] 
[ 3042.869070][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3042.869070][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3042.869070][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3042.869070][   T73]      ipv6_find_idev+0x102/0x170
[ 3042.869070][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3042.869070][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3042.869070][   T73]      netlink_rcv_skb+0x130/0x360
[ 3042.869070][   T73]      netlink_unicast+0x449/0x710
[ 3042.869070][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3042.869070][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3042.869070][   T73]      ___sys_sendmsg+0xee/0x170
[ 3042.869070][   T73]      __sys_sendmsg+0xcd/0x170
[ 3042.869070][   T73]      do_syscall_64+0xc6/0x1e0
[ 3042.869070][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3042.869070][   T73] 
[ 3042.870940][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3042.871234][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3042.871234][   T73]      netdev_get_by_index+0x5e/0x80
[ 3042.871234][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3042.871234][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3042.871234][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3042.871234][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3042.871234][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3042.871234][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3042.871234][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3042.871234][   T73]      addrconf_dad_begin+0x310/0x670
[ 3042.871234][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3042.871234][   T73]      process_one_work+0x84d/0x18a0
[ 3042.871234][   T73]      worker_thread+0x587/0xd30
[ 3042.871234][   T73]      kthread+0x28a/0x350
[ 3042.871234][   T73]      ret_from_fork+0x31/0x70
[ 3042.871234][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3042.871234][   T73] 
[ 3042.873392][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3042.873392][   T73]      netdev_get_by_index+0x5e/0x80
[ 3042.873392][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3042.873392][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3042.873392][   T73]      ip6_route_add+0x1c/0x140
[ 3042.873392][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3042.873392][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3042.873392][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3042.873392][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3042.873392][   T73]      netlink_rcv_skb+0x130/0x360
[ 3042.873392][   T73]      netlink_unicast+0x449/0x710
[ 3042.873392][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3042.873392][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3042.873392][   T73]      ___sys_sendmsg+0xee/0x170
[ 3042.873392][   T73]      __sys_sendmsg+0xcd/0x170
[ 3042.873392][   T73]      do_syscall_64+0xc6/0x1e0
[ 3042.873392][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3042.873392][   T73] 
[ 3042.875626][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3042.875626][   T73]      netdev_get_by_index+0x5e/0x80
[ 3042.875626][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3042.875626][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3042.875626][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3042.875626][   T73]      ipv6_add_addr+0x411/0x2000
[ 3042.875626][   T73]      inet6_addr_add+0x30e/0xa40
[ 3042.875626][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3042.875626][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3042.875626][   T73]      netlink_rcv_skb+0x130/0x360
[ 3042.875626][   T73]      netlink_unicast+0x449/0x710
[ 3042.875626][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3042.875626][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3042.875626][   T73]      ___sys_sendmsg+0xee/0x170
[ 3042.875626][   T73]      __sys_sendmsg+0xcd/0x170
[ 3042.875626][   T73]      do_syscall_64+0xc6/0x1e0
[ 3042.875626][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3042.875626][   T73] 
[ 3042.877878][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3042.877878][   T73]      netdev_get_by_index+0x5e/0x80
[ 3042.877878][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3042.877878][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3042.877878][   T73]      ip6_route_add+0x1c/0x140
[ 3042.877878][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3042.877878][   T73]      addrconf_add_dev+0xe2/0x170
[ 3042.877878][   T73]      inet6_addr_add+0x12f/0xa40
[ 3042.877878][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3042.877878][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3042.877878][   T73]      netlink_rcv_skb+0x130/0x360
[ 3042.877878][   T73]      netlink_unicast+0x449/0x710
[ 3042.877878][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3042.877878][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3042.877878][   T73]      ___sys_sendmsg+0xee/0x170
[ 3042.877878][   T73]      __sys_sendmsg+0xcd/0x170
[ 3042.877878][   T73]      do_syscall_64+0xc6/0x1e0
[ 3042.877878][   T73] 
[ 3042.880080][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3042.880080][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3042.880080][   T73]      ipv6_find_idev+0x102/0x170
[ 3042.880080][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3042.880080][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3042.880080][   T73]      netlink_rcv_skb+0x130/0x360
[ 3042.880080][   T73]      netlink_unicast+0x449/0x710
[ 3042.880080][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3042.880080][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3042.880080][   T73]      ___sys_sendmsg+0xee/0x170
[ 3042.880080][   T73]      __sys_sendmsg+0xcd/0x170
[ 3042.880080][   T73]      do_syscall_64+0xc6/0x1e0
[ 3042.880080][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3042.880080][   T73] 
[ 3042.882334][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3042.882334][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3042.882334][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3042.882334][   T73]      ipv6_find_idev+0x102/0x170
[ 3042.882334][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3042.882334][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3042.882334][   T73]      netlink_rcv_skb+0x130/0x360
[ 3042.882334][   T73]      netlink_unicast+0x449/0x710
[ 3042.882334][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3042.882334][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3042.882334][   T73]      ___sys_sendmsg+0xee/0x170
[ 3042.882334][   T73]      __sys_sendmsg+0xcd/0x170
[ 3042.882334][   T73]      do_syscall_64+0xc6/0x1e0
[ 3042.882334][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3042.882334][   T73] 
[ 3053.103836][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3053.104296][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3053.104296][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3053.104296][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3053.104296][   T73]      fib6_nh_init+0xa22/0x1580
[ 3053.104296][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3053.104296][   T73]      ip6_route_add+0x1c/0x140
[ 3053.104296][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3053.104296][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3053.104296][   T73]      netlink_rcv_skb+0x130/0x360
[ 3053.104296][   T73]      netlink_unicast+0x449/0x710
[ 3053.104296][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3053.104296][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3053.104296][   T73]      ___sys_sendmsg+0xee/0x170
[ 3053.104296][   T73]      __sys_sendmsg+0xcd/0x170
[ 3053.104296][   T73]      do_syscall_64+0xc6/0x1e0
[ 3053.104296][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3053.104296][   T73] 
[ 3053.106310][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3053.106310][   T73]      dst_init+0x84/0x4a0
[ 3053.106310][   T73]      dst_alloc+0x97/0x150
[ 3053.106310][   T73]      ip6_dst_alloc+0x23/0x90
[ 3053.106310][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3053.106310][   T73]      ip6_pol_route+0x56f/0x840
[ 3053.106310][   T73]      fib6_rule_lookup+0x456/0x630
[ 3053.106310][   T73]      ip6_route_input+0x59c/0xa50
[ 3053.106310][   T73]      ipv6_rcv+0x397/0x810
[ 3053.106310][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3053.106310][   T73]      process_backlog+0x101/0x620
[ 3053.106310][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3053.106310][   T73]      net_rx_action+0x495/0xbe0
[ 3053.106310][   T73]      __do_softirq+0x1b5/0x7f6
[ 3053.106310][   T73] 
[ 3053.107945][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3053.107945][   T73]      netdev_get_by_index+0x5e/0x80
[ 3053.107945][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3053.107945][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3053.107945][   T73]      ip6_route_add+0x1c/0x140
[ 3053.107945][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3053.107945][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3053.107945][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3053.107945][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3053.107945][   T73]      netlink_rcv_skb+0x130/0x360
[ 3053.107945][   T73]      netlink_unicast+0x449/0x710
[ 3053.107945][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3053.107945][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3053.107945][   T73]      ___sys_sendmsg+0xee/0x170
[ 3053.107945][   T73]      __sys_sendmsg+0xcd/0x170
[ 3053.107945][   T73]      do_syscall_64+0xc6/0x1e0
[ 3053.107945][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3053.107945][   T73] 
[ 3053.110033][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3053.110033][   T73]      netdev_get_by_index+0x5e/0x80
[ 3053.110033][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3053.110033][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3053.110033][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3053.110033][   T73]      ipv6_add_addr+0x411/0x2000
[ 3053.110033][   T73]      inet6_addr_add+0x30e/0xa40
[ 3053.110033][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3053.110033][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3053.110033][   T73]      netlink_rcv_skb+0x130/0x360
[ 3053.110033][   T73]      netlink_unicast+0x449/0x710
[ 3053.110033][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3053.110033][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3053.110033][   T73]      ___sys_sendmsg+0xee/0x170
[ 3053.110033][   T73]      __sys_sendmsg+0xcd/0x170
[ 3053.110033][   T73]      do_syscall_64+0xc6/0x1e0
[ 3053.110033][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3053.110033][   T73] 
[ 3053.112039][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3053.112039][   T73]      netdev_get_by_index+0x5e/0x80
[ 3053.112039][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3053.112039][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3053.112039][   T73]      ip6_route_add+0x1c/0x140
[ 3053.112039][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3053.112039][   T73]      addrconf_add_dev+0xe2/0x170
[ 3053.112039][   T73]      inet6_addr_add+0x12f/0xa40
[ 3053.112039][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3053.112039][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3053.112039][   T73]      netlink_rcv_skb+0x130/0x360
[ 3053.112039][   T73]      netlink_unicast+0x449/0x710
[ 3053.112039][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3053.112039][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3053.112039][   T73]      ___sys_sendmsg+0xee/0x170
[ 3053.112039][   T73]      __sys_sendmsg+0xcd/0x170
[ 3053.112039][   T73]      do_syscall_64+0xc6/0x1e0
[ 3053.112039][   T73] 
[ 3053.114054][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3053.114054][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3053.114054][   T73]      ipv6_find_idev+0x102/0x170
[ 3053.114054][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3053.114054][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3053.114054][   T73]      netlink_rcv_skb+0x130/0x360
[ 3053.114054][   T73]      netlink_unicast+0x449/0x710
[ 3053.114054][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3053.114054][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3053.114054][   T73]      ___sys_sendmsg+0xee/0x170
[ 3053.114054][   T73]      __sys_sendmsg+0xcd/0x170
[ 3053.114054][   T73]      do_syscall_64+0xc6/0x1e0
[ 3053.114054][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3053.114054][   T73] 
[ 3053.115609][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3053.115609][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3053.115609][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3053.115609][   T73]      ipv6_find_idev+0x102/0x170
[ 3053.115609][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3053.115609][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3053.115609][   T73]      netlink_rcv_skb+0x130/0x360
[ 3053.115609][   T73]      netlink_unicast+0x449/0x710
[ 3053.115609][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3053.115609][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3053.115609][   T73]      ___sys_sendmsg+0xee/0x170
[ 3053.115609][   T73]      __sys_sendmsg+0xcd/0x170
[ 3053.115609][   T73]      do_syscall_64+0xc6/0x1e0
[ 3053.115609][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3053.115609][   T73] 
[ 3053.117329][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3053.117610][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3053.117610][   T73]      netdev_get_by_index+0x5e/0x80
[ 3053.117610][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3053.117610][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3053.117610][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3053.117610][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3053.117610][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3053.117610][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3053.117610][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3053.117610][   T73]      addrconf_dad_begin+0x310/0x670
[ 3053.117610][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3053.117610][   T73]      process_one_work+0x84d/0x18a0
[ 3053.117610][   T73]      worker_thread+0x587/0xd30
[ 3053.117610][   T73]      kthread+0x28a/0x350
[ 3053.117610][   T73]      ret_from_fork+0x31/0x70
[ 3053.117610][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3053.117610][   T73] 
[ 3053.119519][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3053.119519][   T73]      netdev_get_by_index+0x5e/0x80
[ 3053.119519][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3053.119519][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3053.119519][   T73]      ip6_route_add+0x1c/0x140
[ 3053.119519][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3053.119519][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3053.119519][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3053.119519][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3053.119519][   T73]      netlink_rcv_skb+0x130/0x360
[ 3053.119519][   T73]      netlink_unicast+0x449/0x710
[ 3053.119519][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3053.119519][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3053.119519][   T73]      ___sys_sendmsg+0xee/0x170
[ 3053.119519][   T73]      __sys_sendmsg+0xcd/0x170
[ 3053.119519][   T73]      do_syscall_64+0xc6/0x1e0
[ 3053.119519][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3053.119519][   T73] 
[ 3053.121522][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3053.121522][   T73]      netdev_get_by_index+0x5e/0x80
[ 3053.121522][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3053.121522][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3053.121522][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3053.121522][   T73]      ipv6_add_addr+0x411/0x2000
[ 3053.121522][   T73]      inet6_addr_add+0x30e/0xa40
[ 3053.121522][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3053.121522][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3053.121522][   T73]      netlink_rcv_skb+0x130/0x360
[ 3053.121522][   T73]      netlink_unicast+0x449/0x710
[ 3053.121522][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3053.121522][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3053.121522][   T73]      ___sys_sendmsg+0xee/0x170
[ 3053.121522][   T73]      __sys_sendmsg+0xcd/0x170
[ 3053.121522][   T73]      do_syscall_64+0xc6/0x1e0
[ 3053.121522][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3053.121522][   T73] 
[ 3053.123523][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3053.123523][   T73]      netdev_get_by_index+0x5e/0x80
[ 3053.123523][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3053.123523][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3053.123523][   T73]      ip6_route_add+0x1c/0x140
[ 3053.123523][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3053.123523][   T73]      addrconf_add_dev+0xe2/0x170
[ 3053.123523][   T73]      inet6_addr_add+0x12f/0xa40
[ 3053.123523][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3053.123523][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3053.123523][   T73]      netlink_rcv_skb+0x130/0x360
[ 3053.123523][   T73]      netlink_unicast+0x449/0x710
[ 3053.123523][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3053.123523][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3053.123523][   T73]      ___sys_sendmsg+0xee/0x170
[ 3053.123523][   T73]      __sys_sendmsg+0xcd/0x170
[ 3053.123523][   T73]      do_syscall_64+0xc6/0x1e0
[ 3053.123523][   T73] 
[ 3053.125481][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3053.125481][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3053.125481][   T73]      ipv6_find_idev+0x102/0x170
[ 3053.125481][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3053.125481][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3053.125481][   T73]      netlink_rcv_skb+0x130/0x360
[ 3053.125481][   T73]      netlink_unicast+0x449/0x710
[ 3053.125481][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3053.125481][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3053.125481][   T73]      ___sys_sendmsg+0xee/0x170
[ 3053.125481][   T73]      __sys_sendmsg+0xcd/0x170
[ 3053.125481][   T73]      do_syscall_64+0xc6/0x1e0
[ 3053.125481][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3053.125481][   T73] 
[ 3053.127026][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3053.127026][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3053.127026][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3053.127026][   T73]      ipv6_find_idev+0x102/0x170
[ 3053.127026][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3053.127026][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3053.127026][   T73]      netlink_rcv_skb+0x130/0x360
[ 3053.127026][   T73]      netlink_unicast+0x449/0x710
[ 3053.127026][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3053.127026][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3053.127026][   T73]      ___sys_sendmsg+0xee/0x170
[ 3053.127026][   T73]      __sys_sendmsg+0xcd/0x170
[ 3053.127026][   T73]      do_syscall_64+0xc6/0x1e0
[ 3053.127026][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3053.127026][   T73] 
[ 3053.128709][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3053.128975][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3053.128975][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3053.128975][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3053.128975][   T73]      fib6_nh_init+0xa22/0x1580
[ 3053.128975][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3053.128975][   T73]      ip6_route_add+0x1c/0x140
[ 3053.128975][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3053.128975][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3053.128975][   T73]      netlink_rcv_skb+0x130/0x360
[ 3053.128975][   T73]      netlink_unicast+0x449/0x710
[ 3053.128975][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3053.128975][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3053.128975][   T73]      ___sys_sendmsg+0xee/0x170
[ 3053.128975][   T73]      __sys_sendmsg+0xcd/0x170
[ 3053.128975][   T73]      do_syscall_64+0xc6/0x1e0
[ 3053.128975][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3053.128975][   T73] 
[ 3053.131045][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3053.131045][   T73]      dst_init+0x84/0x4a0
[ 3053.131045][   T73]      dst_alloc+0x97/0x150
[ 3053.131045][   T73]      ip6_dst_alloc+0x23/0x90
[ 3053.131045][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3053.131045][   T73]      ip6_pol_route+0x56f/0x840
[ 3053.131045][   T73]      fib6_rule_lookup+0x456/0x630
[ 3053.131045][   T73]      ip6_route_input+0x59c/0xa50
[ 3053.131045][   T73]      ipv6_rcv+0x397/0x810
[ 3053.131045][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3053.131045][   T73]      process_backlog+0x101/0x620
[ 3053.131045][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3053.131045][   T73]      net_rx_action+0x495/0xbe0
[ 3053.131045][   T73]      __do_softirq+0x1b5/0x7f6
[ 3053.131045][   T73] 
[ 3053.132916][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3053.132916][   T73]      netdev_get_by_index+0x5e/0x80
[ 3053.132916][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3053.132916][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3053.132916][   T73]      ip6_route_add+0x1c/0x140
[ 3053.132916][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3053.132916][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3053.132916][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3053.132916][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3053.132916][   T73]      netlink_rcv_skb+0x130/0x360
[ 3053.132916][   T73]      netlink_unicast+0x449/0x710
[ 3053.132916][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3053.132916][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3053.132916][   T73]      ___sys_sendmsg+0xee/0x170
[ 3053.132916][   T73]      __sys_sendmsg+0xcd/0x170
[ 3053.132916][   T73]      do_syscall_64+0xc6/0x1e0
[ 3053.132916][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3053.132916][   T73] 
[ 3053.135167][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3053.135167][   T73]      netdev_get_by_index+0x5e/0x80
[ 3053.135167][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3053.135167][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3053.135167][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3053.135167][   T73]      ipv6_add_addr+0x411/0x2000
[ 3053.135167][   T73]      inet6_addr_add+0x30e/0xa40
[ 3053.135167][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3053.135167][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3053.135167][   T73]      netlink_rcv_skb+0x130/0x360
[ 3053.135167][   T73]      netlink_unicast+0x449/0x710
[ 3053.135167][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3053.135167][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3053.135167][   T73]      ___sys_sendmsg+0xee/0x170
[ 3053.135167][   T73]      __sys_sendmsg+0xcd/0x170
[ 3053.135167][   T73]      do_syscall_64+0xc6/0x1e0
[ 3053.135167][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3053.135167][   T73] 
[ 3053.137399][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3053.137399][   T73]      netdev_get_by_index+0x5e/0x80
[ 3053.137399][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3053.137399][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3053.137399][   T73]      ip6_route_add+0x1c/0x140
[ 3053.137399][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3053.137399][   T73]      addrconf_add_dev+0xe2/0x170
[ 3053.137399][   T73]      inet6_addr_add+0x12f/0xa40
[ 3053.137399][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3053.137399][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3053.137399][   T73]      netlink_rcv_skb+0x130/0x360
[ 3053.137399][   T73]      netlink_unicast+0x449/0x710
[ 3053.137399][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3053.137399][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3053.137399][   T73]      ___sys_sendmsg+0xee/0x170
[ 3053.137399][   T73]      __sys_sendmsg+0xcd/0x170
[ 3053.137399][   T73]      do_syscall_64+0xc6/0x1e0
[ 3053.137399][   T73] 
[ 3053.139644][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3053.139644][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3053.139644][   T73]      ipv6_find_idev+0x102/0x170
[ 3053.139644][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3053.139644][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3053.139644][   T73]      netlink_rcv_skb+0x130/0x360
[ 3053.139644][   T73]      netlink_unicast+0x449/0x710
[ 3053.139644][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3053.139644][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3053.139644][   T73]      ___sys_sendmsg+0xee/0x170
[ 3053.139644][   T73]      __sys_sendmsg+0xcd/0x170
[ 3053.139644][   T73]      do_syscall_64+0xc6/0x1e0
[ 3053.139644][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3053.139644][   T73] 
[ 3053.141424][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3053.141424][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3053.141424][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3053.141424][   T73]      ipv6_find_idev+0x102/0x170
[ 3053.141424][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3053.141424][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3053.141424][   T73]      netlink_rcv_skb+0x130/0x360
[ 3053.141424][   T73]      netlink_unicast+0x449/0x710
[ 3053.141424][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3053.141424][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3053.141424][   T73]      ___sys_sendmsg+0xee/0x170
[ 3053.141424][   T73]      __sys_sendmsg+0xcd/0x170
[ 3053.141424][   T73]      do_syscall_64+0xc6/0x1e0
[ 3053.141424][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3053.141424][   T73] 
[ 3053.143352][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3053.143633][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3053.143633][   T73]      netdev_get_by_index+0x5e/0x80
[ 3053.143633][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3053.143633][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3053.143633][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3053.143633][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3053.143633][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3053.143633][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3053.143633][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3053.143633][   T73]      addrconf_dad_begin+0x310/0x670
[ 3053.143633][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3053.143633][   T73]      process_one_work+0x84d/0x18a0
[ 3053.143633][   T73]      worker_thread+0x587/0xd30
[ 3053.143633][   T73]      kthread+0x28a/0x350
[ 3053.143633][   T73]      ret_from_fork+0x31/0x70
[ 3053.143633][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3053.143633][   T73] 
[ 3053.145804][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3053.145804][   T73]      netdev_get_by_index+0x5e/0x80
[ 3053.145804][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3053.145804][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3053.145804][   T73]      ip6_route_add+0x1c/0x140
[ 3053.145804][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3053.145804][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3053.145804][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3053.145804][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3053.145804][   T73]      netlink_rcv_skb+0x130/0x360
[ 3053.145804][   T73]      netlink_unicast+0x449/0x710
[ 3053.145804][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3053.145804][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3053.145804][   T73]      ___sys_sendmsg+0xee/0x170
[ 3053.145804][   T73]      __sys_sendmsg+0xcd/0x170
[ 3053.145804][   T73]      do_syscall_64+0xc6/0x1e0
[ 3053.145804][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3053.145804][   T73] 
[ 3053.148033][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3053.148033][   T73]      netdev_get_by_index+0x5e/0x80
[ 3053.148033][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3053.148033][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3053.148033][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3053.148033][   T73]      ipv6_add_addr+0x411/0x2000
[ 3053.148033][   T73]      inet6_addr_add+0x30e/0xa40
[ 3053.148033][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3053.148033][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3053.148033][   T73]      netlink_rcv_skb+0x130/0x360
[ 3053.148033][   T73]      netlink_unicast+0x449/0x710
[ 3053.148033][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3053.148033][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3053.148033][   T73]      ___sys_sendmsg+0xee/0x170
[ 3053.148033][   T73]      __sys_sendmsg+0xcd/0x170
[ 3053.148033][   T73]      do_syscall_64+0xc6/0x1e0
[ 3053.148033][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3053.148033][   T73] 
[ 3053.150326][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3053.150326][   T73]      netdev_get_by_index+0x5e/0x80
[ 3053.150326][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3053.150326][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3053.150326][   T73]      ip6_route_add+0x1c/0x140
[ 3053.150326][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3053.150326][   T73]      addrconf_add_dev+0xe2/0x170
[ 3053.150326][   T73]      inet6_addr_add+0x12f/0xa40
[ 3053.150326][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3053.150326][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3053.150326][   T73]      netlink_rcv_skb+0x130/0x360
[ 3053.150326][   T73]      netlink_unicast+0x449/0x710
[ 3053.150326][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3053.150326][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3053.150326][   T73]      ___sys_sendmsg+0xee/0x170
[ 3053.150326][   T73]      __sys_sendmsg+0xcd/0x170
[ 3053.150326][   T73]      do_syscall_64+0xc6/0x1e0
[ 3053.150326][   T73] 
[ 3053.152470][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3053.152470][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3053.152470][   T73]      ipv6_find_idev+0x102/0x170
[ 3053.152470][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3053.152470][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3053.152470][   T73]      netlink_rcv_skb+0x130/0x360
[ 3053.152470][   T73]      netlink_unicast+0x449/0x710
[ 3053.152470][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3053.152470][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3053.152470][   T73]      ___sys_sendmsg+0xee/0x170
[ 3053.152470][   T73]      __sys_sendmsg+0xcd/0x170
[ 3053.152470][   T73]      do_syscall_64+0xc6/0x1e0
[ 3053.152470][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3053.152470][   T73] 
[ 3053.154184][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3053.154184][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3053.154184][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3053.154184][   T73]      ipv6_find_idev+0x102/0x170
[ 3053.154184][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3053.154184][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3053.154184][   T73]      netlink_rcv_skb+0x130/0x360
[ 3053.154184][   T73]      netlink_unicast+0x449/0x710
[ 3053.154184][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3053.154184][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3053.154184][   T73]      ___sys_sendmsg+0xee/0x170
[ 3053.154184][   T73]      __sys_sendmsg+0xcd/0x170
[ 3053.154184][   T73]      do_syscall_64+0xc6/0x1e0
[ 3053.154184][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3053.154184][   T73] 
[ 3063.183898][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3063.184366][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3063.184366][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3063.184366][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3063.184366][   T73]      fib6_nh_init+0xa22/0x1580
[ 3063.184366][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3063.184366][   T73]      ip6_route_add+0x1c/0x140
[ 3063.184366][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3063.184366][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3063.184366][   T73]      netlink_rcv_skb+0x130/0x360
[ 3063.184366][   T73]      netlink_unicast+0x449/0x710
[ 3063.184366][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3063.184366][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3063.184366][   T73]      ___sys_sendmsg+0xee/0x170
[ 3063.184366][   T73]      __sys_sendmsg+0xcd/0x170
[ 3063.184366][   T73]      do_syscall_64+0xc6/0x1e0
[ 3063.184366][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3063.184366][   T73] 
[ 3063.186439][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3063.186439][   T73]      dst_init+0x84/0x4a0
[ 3063.186439][   T73]      dst_alloc+0x97/0x150
[ 3063.186439][   T73]      ip6_dst_alloc+0x23/0x90
[ 3063.186439][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3063.186439][   T73]      ip6_pol_route+0x56f/0x840
[ 3063.186439][   T73]      fib6_rule_lookup+0x456/0x630
[ 3063.186439][   T73]      ip6_route_input+0x59c/0xa50
[ 3063.186439][   T73]      ipv6_rcv+0x397/0x810
[ 3063.186439][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3063.186439][   T73]      process_backlog+0x101/0x620
[ 3063.186439][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3063.186439][   T73]      net_rx_action+0x495/0xbe0
[ 3063.186439][   T73]      __do_softirq+0x1b5/0x7f6
[ 3063.186439][   T73] 
[ 3063.188231][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3063.188231][   T73]      netdev_get_by_index+0x5e/0x80
[ 3063.188231][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3063.188231][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3063.188231][   T73]      ip6_route_add+0x1c/0x140
[ 3063.188231][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3063.188231][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3063.188231][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3063.188231][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3063.188231][   T73]      netlink_rcv_skb+0x130/0x360
[ 3063.188231][   T73]      netlink_unicast+0x449/0x710
[ 3063.188231][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3063.188231][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3063.188231][   T73]      ___sys_sendmsg+0xee/0x170
[ 3063.188231][   T73]      __sys_sendmsg+0xcd/0x170
[ 3063.188231][   T73]      do_syscall_64+0xc6/0x1e0
[ 3063.188231][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3063.188231][   T73] 
[ 3063.190450][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3063.190450][   T73]      netdev_get_by_index+0x5e/0x80
[ 3063.190450][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3063.190450][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3063.190450][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3063.190450][   T73]      ipv6_add_addr+0x411/0x2000
[ 3063.190450][   T73]      inet6_addr_add+0x30e/0xa40
[ 3063.190450][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3063.190450][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3063.190450][   T73]      netlink_rcv_skb+0x130/0x360
[ 3063.190450][   T73]      netlink_unicast+0x449/0x710
[ 3063.190450][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3063.190450][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3063.190450][   T73]      ___sys_sendmsg+0xee/0x170
[ 3063.190450][   T73]      __sys_sendmsg+0xcd/0x170
[ 3063.190450][   T73]      do_syscall_64+0xc6/0x1e0
[ 3063.190450][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3063.190450][   T73] 
[ 3063.192636][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3063.192636][   T73]      netdev_get_by_index+0x5e/0x80
[ 3063.192636][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3063.192636][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3063.192636][   T73]      ip6_route_add+0x1c/0x140
[ 3063.192636][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3063.192636][   T73]      addrconf_add_dev+0xe2/0x170
[ 3063.192636][   T73]      inet6_addr_add+0x12f/0xa40
[ 3063.192636][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3063.192636][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3063.192636][   T73]      netlink_rcv_skb+0x130/0x360
[ 3063.192636][   T73]      netlink_unicast+0x449/0x710
[ 3063.192636][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3063.192636][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3063.192636][   T73]      ___sys_sendmsg+0xee/0x170
[ 3063.192636][   T73]      __sys_sendmsg+0xcd/0x170
[ 3063.192636][   T73]      do_syscall_64+0xc6/0x1e0
[ 3063.192636][   T73] 
[ 3063.194759][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3063.194759][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3063.194759][   T73]      ipv6_find_idev+0x102/0x170
[ 3063.194759][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3063.194759][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3063.194759][   T73]      netlink_rcv_skb+0x130/0x360
[ 3063.194759][   T73]      netlink_unicast+0x449/0x710
[ 3063.194759][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3063.194759][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3063.194759][   T73]      ___sys_sendmsg+0xee/0x170
[ 3063.194759][   T73]      __sys_sendmsg+0xcd/0x170
[ 3063.194759][   T73]      do_syscall_64+0xc6/0x1e0
[ 3063.194759][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3063.194759][   T73] 
[ 3063.196422][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3063.196422][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3063.196422][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3063.196422][   T73]      ipv6_find_idev+0x102/0x170
[ 3063.196422][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3063.196422][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3063.196422][   T73]      netlink_rcv_skb+0x130/0x360
[ 3063.196422][   T73]      netlink_unicast+0x449/0x710
[ 3063.196422][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3063.196422][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3063.196422][   T73]      ___sys_sendmsg+0xee/0x170
[ 3063.196422][   T73]      __sys_sendmsg+0xcd/0x170
[ 3063.196422][   T73]      do_syscall_64+0xc6/0x1e0
[ 3063.196422][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3063.196422][   T73] 
[ 3063.198298][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3063.198604][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3063.198604][   T73]      netdev_get_by_index+0x5e/0x80
[ 3063.198604][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3063.198604][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3063.198604][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3063.198604][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3063.198604][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3063.198604][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3063.198604][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3063.198604][   T73]      addrconf_dad_begin+0x310/0x670
[ 3063.198604][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3063.198604][   T73]      process_one_work+0x84d/0x18a0
[ 3063.198604][   T73]      worker_thread+0x587/0xd30
[ 3063.198604][   T73]      kthread+0x28a/0x350
[ 3063.198604][   T73]      ret_from_fork+0x31/0x70
[ 3063.198604][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3063.198604][   T73] 
[ 3063.200691][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3063.200691][   T73]      netdev_get_by_index+0x5e/0x80
[ 3063.200691][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3063.200691][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3063.200691][   T73]      ip6_route_add+0x1c/0x140
[ 3063.200691][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3063.200691][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3063.200691][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3063.200691][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3063.200691][   T73]      netlink_rcv_skb+0x130/0x360
[ 3063.200691][   T73]      netlink_unicast+0x449/0x710
[ 3063.200691][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3063.200691][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3063.200691][   T73]      ___sys_sendmsg+0xee/0x170
[ 3063.200691][   T73]      __sys_sendmsg+0xcd/0x170
[ 3063.200691][   T73]      do_syscall_64+0xc6/0x1e0
[ 3063.200691][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3063.200691][   T73] 
[ 3063.202856][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3063.202856][   T73]      netdev_get_by_index+0x5e/0x80
[ 3063.202856][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3063.202856][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3063.202856][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3063.202856][   T73]      ipv6_add_addr+0x411/0x2000
[ 3063.202856][   T73]      inet6_addr_add+0x30e/0xa40
[ 3063.202856][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3063.202856][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3063.202856][   T73]      netlink_rcv_skb+0x130/0x360
[ 3063.202856][   T73]      netlink_unicast+0x449/0x710
[ 3063.202856][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3063.202856][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3063.202856][   T73]      ___sys_sendmsg+0xee/0x170
[ 3063.202856][   T73]      __sys_sendmsg+0xcd/0x170
[ 3063.202856][   T73]      do_syscall_64+0xc6/0x1e0
[ 3063.202856][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3063.202856][   T73] 
[ 3063.204987][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3063.204987][   T73]      netdev_get_by_index+0x5e/0x80
[ 3063.204987][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3063.204987][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3063.204987][   T73]      ip6_route_add+0x1c/0x140
[ 3063.204987][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3063.204987][   T73]      addrconf_add_dev+0xe2/0x170
[ 3063.204987][   T73]      inet6_addr_add+0x12f/0xa40
[ 3063.204987][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3063.204987][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3063.204987][   T73]      netlink_rcv_skb+0x130/0x360
[ 3063.204987][   T73]      netlink_unicast+0x449/0x710
[ 3063.204987][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3063.204987][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3063.204987][   T73]      ___sys_sendmsg+0xee/0x170
[ 3063.204987][   T73]      __sys_sendmsg+0xcd/0x170
[ 3063.204987][   T73]      do_syscall_64+0xc6/0x1e0
[ 3063.204987][   T73] 
[ 3063.207128][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3063.207128][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3063.207128][   T73]      ipv6_find_idev+0x102/0x170
[ 3063.207128][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3063.207128][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3063.207128][   T73]      netlink_rcv_skb+0x130/0x360
[ 3063.207128][   T73]      netlink_unicast+0x449/0x710
[ 3063.207128][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3063.207128][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3063.207128][   T73]      ___sys_sendmsg+0xee/0x170
[ 3063.207128][   T73]      __sys_sendmsg+0xcd/0x170
[ 3063.207128][   T73]      do_syscall_64+0xc6/0x1e0
[ 3063.207128][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3063.207128][   T73] 
[ 3063.208772][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3063.208772][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3063.208772][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3063.208772][   T73]      ipv6_find_idev+0x102/0x170
[ 3063.208772][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3063.208772][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3063.208772][   T73]      netlink_rcv_skb+0x130/0x360
[ 3063.208772][   T73]      netlink_unicast+0x449/0x710
[ 3063.208772][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3063.208772][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3063.208772][   T73]      ___sys_sendmsg+0xee/0x170
[ 3063.208772][   T73]      __sys_sendmsg+0xcd/0x170
[ 3063.208772][   T73]      do_syscall_64+0xc6/0x1e0
[ 3063.208772][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3063.208772][   T73] 
[ 3063.210593][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3063.210897][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3063.210897][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3063.210897][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3063.210897][   T73]      fib6_nh_init+0xa22/0x1580
[ 3063.210897][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3063.210897][   T73]      ip6_route_add+0x1c/0x140
[ 3063.210897][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3063.210897][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3063.210897][   T73]      netlink_rcv_skb+0x130/0x360
[ 3063.210897][   T73]      netlink_unicast+0x449/0x710
[ 3063.210897][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3063.210897][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3063.210897][   T73]      ___sys_sendmsg+0xee/0x170
[ 3063.210897][   T73]      __sys_sendmsg+0xcd/0x170
[ 3063.210897][   T73]      do_syscall_64+0xc6/0x1e0
[ 3063.210897][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3063.210897][   T73] 
[ 3063.213124][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3063.213124][   T73]      dst_init+0x84/0x4a0
[ 3063.213124][   T73]      dst_alloc+0x97/0x150
[ 3063.213124][   T73]      ip6_dst_alloc+0x23/0x90
[ 3063.213124][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3063.213124][   T73]      ip6_pol_route+0x56f/0x840
[ 3063.213124][   T73]      fib6_rule_lookup+0x456/0x630
[ 3063.213124][   T73]      ip6_route_input+0x59c/0xa50
[ 3063.213124][   T73]      ipv6_rcv+0x397/0x810
[ 3063.213124][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3063.213124][   T73]      process_backlog+0x101/0x620
[ 3063.213124][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3063.213124][   T73]      net_rx_action+0x495/0xbe0
[ 3063.213124][   T73]      __do_softirq+0x1b5/0x7f6
[ 3063.213124][   T73] 
[ 3063.215135][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3063.215135][   T73]      netdev_get_by_index+0x5e/0x80
[ 3063.215135][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3063.215135][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3063.215135][   T73]      ip6_route_add+0x1c/0x140
[ 3063.215135][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3063.215135][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3063.215135][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3063.215135][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3063.215135][   T73]      netlink_rcv_skb+0x130/0x360
[ 3063.215135][   T73]      netlink_unicast+0x449/0x710
[ 3063.215135][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3063.215135][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3063.215135][   T73]      ___sys_sendmsg+0xee/0x170
[ 3063.215135][   T73]      __sys_sendmsg+0xcd/0x170
[ 3063.215135][   T73]      do_syscall_64+0xc6/0x1e0
[ 3063.215135][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3063.215135][   T73] 
[ 3063.217544][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3063.217544][   T73]      netdev_get_by_index+0x5e/0x80
[ 3063.217544][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3063.217544][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3063.217544][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3063.217544][   T73]      ipv6_add_addr+0x411/0x2000
[ 3063.217544][   T73]      inet6_addr_add+0x30e/0xa40
[ 3063.217544][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3063.217544][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3063.217544][   T73]      netlink_rcv_skb+0x130/0x360
[ 3063.217544][   T73]      netlink_unicast+0x449/0x710
[ 3063.217544][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3063.217544][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3063.217544][   T73]      ___sys_sendmsg+0xee/0x170
[ 3063.217544][   T73]      __sys_sendmsg+0xcd/0x170
[ 3063.217544][   T73]      do_syscall_64+0xc6/0x1e0
[ 3063.217544][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3063.217544][   T73] 
[ 3063.219949][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3063.219949][   T73]      netdev_get_by_index+0x5e/0x80
[ 3063.219949][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3063.219949][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3063.219949][   T73]      ip6_route_add+0x1c/0x140
[ 3063.219949][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3063.219949][   T73]      addrconf_add_dev+0xe2/0x170
[ 3063.219949][   T73]      inet6_addr_add+0x12f/0xa40
[ 3063.219949][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3063.219949][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3063.219949][   T73]      netlink_rcv_skb+0x130/0x360
[ 3063.219949][   T73]      netlink_unicast+0x449/0x710
[ 3063.219949][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3063.219949][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3063.219949][   T73]      ___sys_sendmsg+0xee/0x170
[ 3063.219949][   T73]      __sys_sendmsg+0xcd/0x170
[ 3063.219949][   T73]      do_syscall_64+0xc6/0x1e0
[ 3063.219949][   T73] 
[ 3063.222277][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3063.222277][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3063.222277][   T73]      ipv6_find_idev+0x102/0x170
[ 3063.222277][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3063.222277][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3063.222277][   T73]      netlink_rcv_skb+0x130/0x360
[ 3063.222277][   T73]      netlink_unicast+0x449/0x710
[ 3063.222277][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3063.222277][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3063.222277][   T73]      ___sys_sendmsg+0xee/0x170
[ 3063.222277][   T73]      __sys_sendmsg+0xcd/0x170
[ 3063.222277][   T73]      do_syscall_64+0xc6/0x1e0
[ 3063.222277][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3063.222277][   T73] 
[ 3063.224189][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3063.224189][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3063.224189][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3063.224189][   T73]      ipv6_find_idev+0x102/0x170
[ 3063.224189][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3063.224189][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3063.224189][   T73]      netlink_rcv_skb+0x130/0x360
[ 3063.224189][   T73]      netlink_unicast+0x449/0x710
[ 3063.224189][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3063.224189][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3063.224189][   T73]      ___sys_sendmsg+0xee/0x170
[ 3063.224189][   T73]      __sys_sendmsg+0xcd/0x170
[ 3063.224189][   T73]      do_syscall_64+0xc6/0x1e0
[ 3063.224189][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3063.224189][   T73] 
[ 3063.226206][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3063.226497][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3063.226497][   T73]      netdev_get_by_index+0x5e/0x80
[ 3063.226497][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3063.226497][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3063.226497][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3063.226497][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3063.226497][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3063.226497][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3063.226497][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3063.226497][   T73]      addrconf_dad_begin+0x310/0x670
[ 3063.226497][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3063.226497][   T73]      process_one_work+0x84d/0x18a0
[ 3063.226497][   T73]      worker_thread+0x587/0xd30
[ 3063.226497][   T73]      kthread+0x28a/0x350
[ 3063.226497][   T73]      ret_from_fork+0x31/0x70
[ 3063.226497][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3063.226497][   T73] 
[ 3063.228820][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3063.228820][   T73]      netdev_get_by_index+0x5e/0x80
[ 3063.228820][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3063.228820][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3063.228820][   T73]      ip6_route_add+0x1c/0x140
[ 3063.228820][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3063.228820][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3063.228820][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3063.228820][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3063.228820][   T73]      netlink_rcv_skb+0x130/0x360
[ 3063.228820][   T73]      netlink_unicast+0x449/0x710
[ 3063.228820][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3063.228820][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3063.228820][   T73]      ___sys_sendmsg+0xee/0x170
[ 3063.228820][   T73]      __sys_sendmsg+0xcd/0x170
[ 3063.228820][   T73]      do_syscall_64+0xc6/0x1e0
[ 3063.228820][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3063.228820][   T73] 
[ 3063.231207][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3063.231207][   T73]      netdev_get_by_index+0x5e/0x80
[ 3063.231207][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3063.231207][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3063.231207][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3063.231207][   T73]      ipv6_add_addr+0x411/0x2000
[ 3063.231207][   T73]      inet6_addr_add+0x30e/0xa40
[ 3063.231207][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3063.231207][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3063.231207][   T73]      netlink_rcv_skb+0x130/0x360
[ 3063.231207][   T73]      netlink_unicast+0x449/0x710
[ 3063.231207][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3063.231207][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3063.231207][   T73]      ___sys_sendmsg+0xee/0x170
[ 3063.231207][   T73]      __sys_sendmsg+0xcd/0x170
[ 3063.231207][   T73]      do_syscall_64+0xc6/0x1e0
[ 3063.231207][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3063.231207][   T73] 
[ 3063.233657][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3063.233657][   T73]      netdev_get_by_index+0x5e/0x80
[ 3063.233657][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3063.233657][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3063.233657][   T73]      ip6_route_add+0x1c/0x140
[ 3063.233657][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3063.233657][   T73]      addrconf_add_dev+0xe2/0x170
[ 3063.233657][   T73]      inet6_addr_add+0x12f/0xa40
[ 3063.233657][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3063.233657][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3063.233657][   T73]      netlink_rcv_skb+0x130/0x360
[ 3063.233657][   T73]      netlink_unicast+0x449/0x710
[ 3063.233657][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3063.233657][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3063.233657][   T73]      ___sys_sendmsg+0xee/0x170
[ 3063.233657][   T73]      __sys_sendmsg+0xcd/0x170
[ 3063.233657][   T73]      do_syscall_64+0xc6/0x1e0
[ 3063.233657][   T73] 
[ 3063.235934][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3063.235934][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3063.235934][   T73]      ipv6_find_idev+0x102/0x170
[ 3063.235934][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3063.235934][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3063.235934][   T73]      netlink_rcv_skb+0x130/0x360
[ 3063.235934][   T73]      netlink_unicast+0x449/0x710
[ 3063.235934][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3063.235934][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3063.235934][   T73]      ___sys_sendmsg+0xee/0x170
[ 3063.235934][   T73]      __sys_sendmsg+0xcd/0x170
[ 3063.235934][   T73]      do_syscall_64+0xc6/0x1e0
[ 3063.235934][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3063.235934][   T73] 
[ 3063.237785][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3063.237785][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3063.237785][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3063.237785][   T73]      ipv6_find_idev+0x102/0x170
[ 3063.237785][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3063.237785][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3063.237785][   T73]      netlink_rcv_skb+0x130/0x360
[ 3063.237785][   T73]      netlink_unicast+0x449/0x710
[ 3063.237785][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3063.237785][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3063.237785][   T73]      ___sys_sendmsg+0xee/0x170
[ 3063.237785][   T73]      __sys_sendmsg+0xcd/0x170
[ 3063.237785][   T73]      do_syscall_64+0xc6/0x1e0
[ 3063.237785][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3063.237785][   T73] 
[ 3073.327759][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3073.328230][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3073.328230][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3073.328230][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3073.328230][   T73]      fib6_nh_init+0xa22/0x1580
[ 3073.328230][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3073.328230][   T73]      ip6_route_add+0x1c/0x140
[ 3073.328230][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3073.328230][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3073.328230][   T73]      netlink_rcv_skb+0x130/0x360
[ 3073.328230][   T73]      netlink_unicast+0x449/0x710
[ 3073.328230][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3073.328230][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3073.328230][   T73]      ___sys_sendmsg+0xee/0x170
[ 3073.328230][   T73]      __sys_sendmsg+0xcd/0x170
[ 3073.328230][   T73]      do_syscall_64+0xc6/0x1e0
[ 3073.328230][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3073.328230][   T73] 
[ 3073.330135][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3073.330135][   T73]      dst_init+0x84/0x4a0
[ 3073.330135][   T73]      dst_alloc+0x97/0x150
[ 3073.330135][   T73]      ip6_dst_alloc+0x23/0x90
[ 3073.330135][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3073.330135][   T73]      ip6_pol_route+0x56f/0x840
[ 3073.330135][   T73]      fib6_rule_lookup+0x456/0x630
[ 3073.330135][   T73]      ip6_route_input+0x59c/0xa50
[ 3073.330135][   T73]      ipv6_rcv+0x397/0x810
[ 3073.330135][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3073.330135][   T73]      process_backlog+0x101/0x620
[ 3073.330135][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3073.330135][   T73]      net_rx_action+0x495/0xbe0
[ 3073.330135][   T73]      __do_softirq+0x1b5/0x7f6
[ 3073.330135][   T73] 
[ 3073.331802][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3073.331802][   T73]      netdev_get_by_index+0x5e/0x80
[ 3073.331802][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3073.331802][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3073.331802][   T73]      ip6_route_add+0x1c/0x140
[ 3073.331802][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3073.331802][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3073.331802][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3073.331802][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3073.331802][   T73]      netlink_rcv_skb+0x130/0x360
[ 3073.331802][   T73]      netlink_unicast+0x449/0x710
[ 3073.331802][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3073.331802][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3073.331802][   T73]      ___sys_sendmsg+0xee/0x170
[ 3073.331802][   T73]      __sys_sendmsg+0xcd/0x170
[ 3073.331802][   T73]      do_syscall_64+0xc6/0x1e0
[ 3073.331802][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3073.331802][   T73] 
[ 3073.333799][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3073.333799][   T73]      netdev_get_by_index+0x5e/0x80
[ 3073.333799][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3073.333799][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3073.333799][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3073.333799][   T73]      ipv6_add_addr+0x411/0x2000
[ 3073.333799][   T73]      inet6_addr_add+0x30e/0xa40
[ 3073.333799][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3073.333799][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3073.333799][   T73]      netlink_rcv_skb+0x130/0x360
[ 3073.333799][   T73]      netlink_unicast+0x449/0x710
[ 3073.333799][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3073.333799][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3073.333799][   T73]      ___sys_sendmsg+0xee/0x170
[ 3073.333799][   T73]      __sys_sendmsg+0xcd/0x170
[ 3073.333799][   T73]      do_syscall_64+0xc6/0x1e0
[ 3073.333799][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3073.333799][   T73] 
[ 3073.335786][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3073.335786][   T73]      netdev_get_by_index+0x5e/0x80
[ 3073.335786][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3073.335786][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3073.335786][   T73]      ip6_route_add+0x1c/0x140
[ 3073.335786][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3073.335786][   T73]      addrconf_add_dev+0xe2/0x170
[ 3073.335786][   T73]      inet6_addr_add+0x12f/0xa40
[ 3073.335786][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3073.335786][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3073.335786][   T73]      netlink_rcv_skb+0x130/0x360
[ 3073.335786][   T73]      netlink_unicast+0x449/0x710
[ 3073.335786][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3073.335786][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3073.335786][   T73]      ___sys_sendmsg+0xee/0x170
[ 3073.335786][   T73]      __sys_sendmsg+0xcd/0x170
[ 3073.335786][   T73]      do_syscall_64+0xc6/0x1e0
[ 3073.335786][   T73] 
[ 3073.337743][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3073.337743][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3073.337743][   T73]      ipv6_find_idev+0x102/0x170
[ 3073.337743][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3073.337743][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3073.337743][   T73]      netlink_rcv_skb+0x130/0x360
[ 3073.337743][   T73]      netlink_unicast+0x449/0x710
[ 3073.337743][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3073.337743][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3073.337743][   T73]      ___sys_sendmsg+0xee/0x170
[ 3073.337743][   T73]      __sys_sendmsg+0xcd/0x170
[ 3073.337743][   T73]      do_syscall_64+0xc6/0x1e0
[ 3073.337743][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3073.337743][   T73] 
[ 3073.339282][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3073.339282][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3073.339282][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3073.339282][   T73]      ipv6_find_idev+0x102/0x170
[ 3073.339282][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3073.339282][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3073.339282][   T73]      netlink_rcv_skb+0x130/0x360
[ 3073.339282][   T73]      netlink_unicast+0x449/0x710
[ 3073.339282][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3073.339282][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3073.339282][   T73]      ___sys_sendmsg+0xee/0x170
[ 3073.339282][   T73]      __sys_sendmsg+0xcd/0x170
[ 3073.339282][   T73]      do_syscall_64+0xc6/0x1e0
[ 3073.339282][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3073.339282][   T73] 
[ 3073.340978][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3073.341265][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3073.341265][   T73]      netdev_get_by_index+0x5e/0x80
[ 3073.341265][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3073.341265][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3073.341265][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3073.341265][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3073.341265][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3073.341265][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3073.341265][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3073.341265][   T73]      addrconf_dad_begin+0x310/0x670
[ 3073.341265][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3073.341265][   T73]      process_one_work+0x84d/0x18a0
[ 3073.341265][   T73]      worker_thread+0x587/0xd30
[ 3073.341265][   T73]      kthread+0x28a/0x350
[ 3073.341265][   T73]      ret_from_fork+0x31/0x70
[ 3073.341265][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3073.341265][   T73] 
[ 3073.343173][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3073.343173][   T73]      netdev_get_by_index+0x5e/0x80
[ 3073.343173][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3073.343173][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3073.343173][   T73]      ip6_route_add+0x1c/0x140
[ 3073.343173][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3073.343173][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3073.343173][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3073.343173][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3073.343173][   T73]      netlink_rcv_skb+0x130/0x360
[ 3073.343173][   T73]      netlink_unicast+0x449/0x710
[ 3073.343173][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3073.343173][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3073.343173][   T73]      ___sys_sendmsg+0xee/0x170
[ 3073.343173][   T73]      __sys_sendmsg+0xcd/0x170
[ 3073.343173][   T73]      do_syscall_64+0xc6/0x1e0
[ 3073.343173][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3073.343173][   T73] 
[ 3073.345167][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3073.345167][   T73]      netdev_get_by_index+0x5e/0x80
[ 3073.345167][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3073.345167][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3073.345167][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3073.345167][   T73]      ipv6_add_addr+0x411/0x2000
[ 3073.345167][   T73]      inet6_addr_add+0x30e/0xa40
[ 3073.345167][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3073.345167][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3073.345167][   T73]      netlink_rcv_skb+0x130/0x360
[ 3073.345167][   T73]      netlink_unicast+0x449/0x710
[ 3073.345167][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3073.345167][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3073.345167][   T73]      ___sys_sendmsg+0xee/0x170
[ 3073.345167][   T73]      __sys_sendmsg+0xcd/0x170
[ 3073.345167][   T73]      do_syscall_64+0xc6/0x1e0
[ 3073.345167][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3073.345167][   T73] 
[ 3073.347158][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3073.347158][   T73]      netdev_get_by_index+0x5e/0x80
[ 3073.347158][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3073.347158][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3073.347158][   T73]      ip6_route_add+0x1c/0x140
[ 3073.347158][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3073.347158][   T73]      addrconf_add_dev+0xe2/0x170
[ 3073.347158][   T73]      inet6_addr_add+0x12f/0xa40
[ 3073.347158][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3073.347158][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3073.347158][   T73]      netlink_rcv_skb+0x130/0x360
[ 3073.347158][   T73]      netlink_unicast+0x449/0x710
[ 3073.347158][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3073.347158][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3073.347158][   T73]      ___sys_sendmsg+0xee/0x170
[ 3073.347158][   T73]      __sys_sendmsg+0xcd/0x170
[ 3073.347158][   T73]      do_syscall_64+0xc6/0x1e0
[ 3073.347158][   T73] 
[ 3073.349112][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3073.349112][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3073.349112][   T73]      ipv6_find_idev+0x102/0x170
[ 3073.349112][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3073.349112][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3073.349112][   T73]      netlink_rcv_skb+0x130/0x360
[ 3073.349112][   T73]      netlink_unicast+0x449/0x710
[ 3073.349112][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3073.349112][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3073.349112][   T73]      ___sys_sendmsg+0xee/0x170
[ 3073.349112][   T73]      __sys_sendmsg+0xcd/0x170
[ 3073.349112][   T73]      do_syscall_64+0xc6/0x1e0
[ 3073.349112][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3073.349112][   T73] 
[ 3073.350661][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3073.350661][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3073.350661][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3073.350661][   T73]      ipv6_find_idev+0x102/0x170
[ 3073.350661][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3073.350661][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3073.350661][   T73]      netlink_rcv_skb+0x130/0x360
[ 3073.350661][   T73]      netlink_unicast+0x449/0x710
[ 3073.350661][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3073.350661][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3073.350661][   T73]      ___sys_sendmsg+0xee/0x170
[ 3073.350661][   T73]      __sys_sendmsg+0xcd/0x170
[ 3073.350661][   T73]      do_syscall_64+0xc6/0x1e0
[ 3073.350661][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3073.350661][   T73] 
[ 3073.352333][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3073.352707][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3073.352707][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3073.352707][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3073.352707][   T73]      fib6_nh_init+0xa22/0x1580
[ 3073.352707][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3073.352707][   T73]      ip6_route_add+0x1c/0x140
[ 3073.352707][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3073.352707][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3073.352707][   T73]      netlink_rcv_skb+0x130/0x360
[ 3073.352707][   T73]      netlink_unicast+0x449/0x710
[ 3073.352707][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3073.352707][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3073.352707][   T73]      ___sys_sendmsg+0xee/0x170
[ 3073.352707][   T73]      __sys_sendmsg+0xcd/0x170
[ 3073.352707][   T73]      do_syscall_64+0xc6/0x1e0
[ 3073.352707][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3073.352707][   T73] 
[ 3073.354763][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3073.354763][   T73]      dst_init+0x84/0x4a0
[ 3073.354763][   T73]      dst_alloc+0x97/0x150
[ 3073.354763][   T73]      ip6_dst_alloc+0x23/0x90
[ 3073.354763][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3073.354763][   T73]      ip6_pol_route+0x56f/0x840
[ 3073.354763][   T73]      fib6_rule_lookup+0x456/0x630
[ 3073.354763][   T73]      ip6_route_input+0x59c/0xa50
[ 3073.354763][   T73]      ipv6_rcv+0x397/0x810
[ 3073.354763][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3073.354763][   T73]      process_backlog+0x101/0x620
[ 3073.354763][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3073.354763][   T73]      net_rx_action+0x495/0xbe0
[ 3073.354763][   T73]      __do_softirq+0x1b5/0x7f6
[ 3073.354763][   T73] 
[ 3073.356651][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3073.356651][   T73]      netdev_get_by_index+0x5e/0x80
[ 3073.356651][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3073.356651][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3073.356651][   T73]      ip6_route_add+0x1c/0x140
[ 3073.356651][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3073.356651][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3073.356651][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3073.356651][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3073.356651][   T73]      netlink_rcv_skb+0x130/0x360
[ 3073.356651][   T73]      netlink_unicast+0x449/0x710
[ 3073.356651][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3073.356651][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3073.356651][   T73]      ___sys_sendmsg+0xee/0x170
[ 3073.356651][   T73]      __sys_sendmsg+0xcd/0x170
[ 3073.356651][   T73]      do_syscall_64+0xc6/0x1e0
[ 3073.356651][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3073.356651][   T73] 
[ 3073.358886][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3073.358886][   T73]      netdev_get_by_index+0x5e/0x80
[ 3073.358886][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3073.358886][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3073.358886][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3073.358886][   T73]      ipv6_add_addr+0x411/0x2000
[ 3073.358886][   T73]      inet6_addr_add+0x30e/0xa40
[ 3073.358886][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3073.358886][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3073.358886][   T73]      netlink_rcv_skb+0x130/0x360
[ 3073.358886][   T73]      netlink_unicast+0x449/0x710
[ 3073.358886][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3073.358886][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3073.358886][   T73]      ___sys_sendmsg+0xee/0x170
[ 3073.358886][   T73]      __sys_sendmsg+0xcd/0x170
[ 3073.358886][   T73]      do_syscall_64+0xc6/0x1e0
[ 3073.358886][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3073.358886][   T73] 
[ 3073.361149][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3073.361149][   T73]      netdev_get_by_index+0x5e/0x80
[ 3073.361149][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3073.361149][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3073.361149][   T73]      ip6_route_add+0x1c/0x140
[ 3073.361149][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3073.361149][   T73]      addrconf_add_dev+0xe2/0x170
[ 3073.361149][   T73]      inet6_addr_add+0x12f/0xa40
[ 3073.361149][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3073.361149][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3073.361149][   T73]      netlink_rcv_skb+0x130/0x360
[ 3073.361149][   T73]      netlink_unicast+0x449/0x710
[ 3073.361149][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3073.361149][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3073.361149][   T73]      ___sys_sendmsg+0xee/0x170
[ 3073.361149][   T73]      __sys_sendmsg+0xcd/0x170
[ 3073.361149][   T73]      do_syscall_64+0xc6/0x1e0
[ 3073.361149][   T73] 
[ 3073.363355][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3073.363355][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3073.363355][   T73]      ipv6_find_idev+0x102/0x170
[ 3073.363355][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3073.363355][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3073.363355][   T73]      netlink_rcv_skb+0x130/0x360
[ 3073.363355][   T73]      netlink_unicast+0x449/0x710
[ 3073.363355][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3073.363355][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3073.363355][   T73]      ___sys_sendmsg+0xee/0x170
[ 3073.363355][   T73]      __sys_sendmsg+0xcd/0x170
[ 3073.363355][   T73]      do_syscall_64+0xc6/0x1e0
[ 3073.363355][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3073.363355][   T73] 
[ 3073.365131][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3073.365131][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3073.365131][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3073.365131][   T73]      ipv6_find_idev+0x102/0x170
[ 3073.365131][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3073.365131][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3073.365131][   T73]      netlink_rcv_skb+0x130/0x360
[ 3073.365131][   T73]      netlink_unicast+0x449/0x710
[ 3073.365131][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3073.365131][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3073.365131][   T73]      ___sys_sendmsg+0xee/0x170
[ 3073.365131][   T73]      __sys_sendmsg+0xcd/0x170
[ 3073.365131][   T73]      do_syscall_64+0xc6/0x1e0
[ 3073.365131][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3073.365131][   T73] 
[ 3073.366991][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3073.367261][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3073.367261][   T73]      netdev_get_by_index+0x5e/0x80
[ 3073.367261][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3073.367261][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3073.367261][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3073.367261][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3073.367261][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3073.367261][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3073.367261][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3073.367261][   T73]      addrconf_dad_begin+0x310/0x670
[ 3073.367261][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3073.367261][   T73]      process_one_work+0x84d/0x18a0
[ 3073.367261][   T73]      worker_thread+0x587/0xd30
[ 3073.367261][   T73]      kthread+0x28a/0x350
[ 3073.367261][   T73]      ret_from_fork+0x31/0x70
[ 3073.367261][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3073.367261][   T73] 
[ 3073.369402][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3073.369402][   T73]      netdev_get_by_index+0x5e/0x80
[ 3073.369402][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3073.369402][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3073.369402][   T73]      ip6_route_add+0x1c/0x140
[ 3073.369402][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3073.369402][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3073.369402][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3073.369402][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3073.369402][   T73]      netlink_rcv_skb+0x130/0x360
[ 3073.369402][   T73]      netlink_unicast+0x449/0x710
[ 3073.369402][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3073.369402][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3073.369402][   T73]      ___sys_sendmsg+0xee/0x170
[ 3073.369402][   T73]      __sys_sendmsg+0xcd/0x170
[ 3073.369402][   T73]      do_syscall_64+0xc6/0x1e0
[ 3073.369402][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3073.369402][   T73] 
[ 3073.371637][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3073.371637][   T73]      netdev_get_by_index+0x5e/0x80
[ 3073.371637][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3073.371637][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3073.371637][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3073.371637][   T73]      ipv6_add_addr+0x411/0x2000
[ 3073.371637][   T73]      inet6_addr_add+0x30e/0xa40
[ 3073.371637][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3073.371637][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3073.371637][   T73]      netlink_rcv_skb+0x130/0x360
[ 3073.371637][   T73]      netlink_unicast+0x449/0x710
[ 3073.371637][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3073.371637][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3073.371637][   T73]      ___sys_sendmsg+0xee/0x170
[ 3073.371637][   T73]      __sys_sendmsg+0xcd/0x170
[ 3073.371637][   T73]      do_syscall_64+0xc6/0x1e0
[ 3073.371637][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3073.371637][   T73] 
[ 3073.373925][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3073.373925][   T73]      netdev_get_by_index+0x5e/0x80
[ 3073.373925][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3073.373925][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3073.373925][   T73]      ip6_route_add+0x1c/0x140
[ 3073.373925][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3073.373925][   T73]      addrconf_add_dev+0xe2/0x170
[ 3073.373925][   T73]      inet6_addr_add+0x12f/0xa40
[ 3073.373925][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3073.373925][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3073.373925][   T73]      netlink_rcv_skb+0x130/0x360
[ 3073.373925][   T73]      netlink_unicast+0x449/0x710
[ 3073.373925][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3073.373925][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3073.373925][   T73]      ___sys_sendmsg+0xee/0x170
[ 3073.373925][   T73]      __sys_sendmsg+0xcd/0x170
[ 3073.373925][   T73]      do_syscall_64+0xc6/0x1e0
[ 3073.373925][   T73] 
[ 3073.376058][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3073.376058][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3073.376058][   T73]      ipv6_find_idev+0x102/0x170
[ 3073.376058][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3073.376058][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3073.376058][   T73]      netlink_rcv_skb+0x130/0x360
[ 3073.376058][   T73]      netlink_unicast+0x449/0x710
[ 3073.376058][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3073.376058][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3073.376058][   T73]      ___sys_sendmsg+0xee/0x170
[ 3073.376058][   T73]      __sys_sendmsg+0xcd/0x170
[ 3073.376058][   T73]      do_syscall_64+0xc6/0x1e0
[ 3073.376058][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3073.376058][   T73] 
[ 3073.377768][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3073.377768][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3073.377768][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3073.377768][   T73]      ipv6_find_idev+0x102/0x170
[ 3073.377768][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3073.377768][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3073.377768][   T73]      netlink_rcv_skb+0x130/0x360
[ 3073.377768][   T73]      netlink_unicast+0x449/0x710
[ 3073.377768][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3073.377768][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3073.377768][   T73]      ___sys_sendmsg+0xee/0x170
[ 3073.377768][   T73]      __sys_sendmsg+0xcd/0x170
[ 3073.377768][   T73]      do_syscall_64+0xc6/0x1e0
[ 3073.377768][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3073.377768][   T73] 
[ 3083.631826][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3083.632315][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3083.632315][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3083.632315][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3083.632315][   T73]      fib6_nh_init+0xa22/0x1580
[ 3083.632315][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3083.632315][   T73]      ip6_route_add+0x1c/0x140
[ 3083.632315][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3083.632315][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3083.632315][   T73]      netlink_rcv_skb+0x130/0x360
[ 3083.632315][   T73]      netlink_unicast+0x449/0x710
[ 3083.632315][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3083.632315][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3083.632315][   T73]      ___sys_sendmsg+0xee/0x170
[ 3083.632315][   T73]      __sys_sendmsg+0xcd/0x170
[ 3083.632315][   T73]      do_syscall_64+0xc6/0x1e0
[ 3083.632315][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3083.632315][   T73] 
[ 3083.634212][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3083.634212][   T73]      dst_init+0x84/0x4a0
[ 3083.634212][   T73]      dst_alloc+0x97/0x150
[ 3083.634212][   T73]      ip6_dst_alloc+0x23/0x90
[ 3083.634212][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3083.634212][   T73]      ip6_pol_route+0x56f/0x840
[ 3083.634212][   T73]      fib6_rule_lookup+0x456/0x630
[ 3083.634212][   T73]      ip6_route_input+0x59c/0xa50
[ 3083.634212][   T73]      ipv6_rcv+0x397/0x810
[ 3083.634212][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3083.634212][   T73]      process_backlog+0x101/0x620
[ 3083.634212][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3083.634212][   T73]      net_rx_action+0x495/0xbe0
[ 3083.634212][   T73]      __do_softirq+0x1b5/0x7f6
[ 3083.634212][   T73] 
[ 3083.635862][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3083.635862][   T73]      netdev_get_by_index+0x5e/0x80
[ 3083.635862][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3083.635862][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3083.635862][   T73]      ip6_route_add+0x1c/0x140
[ 3083.635862][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3083.635862][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3083.635862][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3083.635862][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3083.635862][   T73]      netlink_rcv_skb+0x130/0x360
[ 3083.635862][   T73]      netlink_unicast+0x449/0x710
[ 3083.635862][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3083.635862][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3083.635862][   T73]      ___sys_sendmsg+0xee/0x170
[ 3083.635862][   T73]      __sys_sendmsg+0xcd/0x170
[ 3083.635862][   T73]      do_syscall_64+0xc6/0x1e0
[ 3083.635862][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3083.635862][   T73] 
[ 3083.637852][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3083.637852][   T73]      netdev_get_by_index+0x5e/0x80
[ 3083.637852][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3083.637852][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3083.637852][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3083.637852][   T73]      ipv6_add_addr+0x411/0x2000
[ 3083.637852][   T73]      inet6_addr_add+0x30e/0xa40
[ 3083.637852][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3083.637852][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3083.637852][   T73]      netlink_rcv_skb+0x130/0x360
[ 3083.637852][   T73]      netlink_unicast+0x449/0x710
[ 3083.637852][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3083.637852][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3083.637852][   T73]      ___sys_sendmsg+0xee/0x170
[ 3083.637852][   T73]      __sys_sendmsg+0xcd/0x170
[ 3083.637852][   T73]      do_syscall_64+0xc6/0x1e0
[ 3083.637852][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3083.637852][   T73] 
[ 3083.639840][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3083.639840][   T73]      netdev_get_by_index+0x5e/0x80
[ 3083.639840][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3083.639840][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3083.639840][   T73]      ip6_route_add+0x1c/0x140
[ 3083.639840][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3083.639840][   T73]      addrconf_add_dev+0xe2/0x170
[ 3083.639840][   T73]      inet6_addr_add+0x12f/0xa40
[ 3083.639840][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3083.639840][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3083.639840][   T73]      netlink_rcv_skb+0x130/0x360
[ 3083.639840][   T73]      netlink_unicast+0x449/0x710
[ 3083.639840][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3083.639840][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3083.639840][   T73]      ___sys_sendmsg+0xee/0x170
[ 3083.639840][   T73]      __sys_sendmsg+0xcd/0x170
[ 3083.639840][   T73]      do_syscall_64+0xc6/0x1e0
[ 3083.639840][   T73] 
[ 3083.641799][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3083.641799][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3083.641799][   T73]      ipv6_find_idev+0x102/0x170
[ 3083.641799][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3083.641799][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3083.641799][   T73]      netlink_rcv_skb+0x130/0x360
[ 3083.641799][   T73]      netlink_unicast+0x449/0x710
[ 3083.641799][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3083.641799][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3083.641799][   T73]      ___sys_sendmsg+0xee/0x170
[ 3083.641799][   T73]      __sys_sendmsg+0xcd/0x170
[ 3083.641799][   T73]      do_syscall_64+0xc6/0x1e0
[ 3083.641799][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3083.641799][   T73] 
[ 3083.643331][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3083.643331][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3083.643331][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3083.643331][   T73]      ipv6_find_idev+0x102/0x170
[ 3083.643331][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3083.643331][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3083.643331][   T73]      netlink_rcv_skb+0x130/0x360
[ 3083.643331][   T73]      netlink_unicast+0x449/0x710
[ 3083.643331][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3083.643331][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3083.643331][   T73]      ___sys_sendmsg+0xee/0x170
[ 3083.643331][   T73]      __sys_sendmsg+0xcd/0x170
[ 3083.643331][   T73]      do_syscall_64+0xc6/0x1e0
[ 3083.643331][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3083.643331][   T73] 
[ 3083.645015][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3083.645296][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3083.645296][   T73]      netdev_get_by_index+0x5e/0x80
[ 3083.645296][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3083.645296][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3083.645296][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3083.645296][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3083.645296][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3083.645296][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3083.645296][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3083.645296][   T73]      addrconf_dad_begin+0x310/0x670
[ 3083.645296][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3083.645296][   T73]      process_one_work+0x84d/0x18a0
[ 3083.645296][   T73]      worker_thread+0x587/0xd30
[ 3083.645296][   T73]      kthread+0x28a/0x350
[ 3083.645296][   T73]      ret_from_fork+0x31/0x70
[ 3083.645296][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3083.645296][   T73] 
[ 3083.647192][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3083.647192][   T73]      netdev_get_by_index+0x5e/0x80
[ 3083.647192][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3083.647192][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3083.647192][   T73]      ip6_route_add+0x1c/0x140
[ 3083.647192][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3083.647192][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3083.647192][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3083.647192][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3083.647192][   T73]      netlink_rcv_skb+0x130/0x360
[ 3083.647192][   T73]      netlink_unicast+0x449/0x710
[ 3083.647192][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3083.647192][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3083.647192][   T73]      ___sys_sendmsg+0xee/0x170
[ 3083.647192][   T73]      __sys_sendmsg+0xcd/0x170
[ 3083.647192][   T73]      do_syscall_64+0xc6/0x1e0
[ 3083.647192][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3083.647192][   T73] 
[ 3083.649163][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3083.649163][   T73]      netdev_get_by_index+0x5e/0x80
[ 3083.649163][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3083.649163][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3083.649163][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3083.649163][   T73]      ipv6_add_addr+0x411/0x2000
[ 3083.649163][   T73]      inet6_addr_add+0x30e/0xa40
[ 3083.649163][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3083.649163][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3083.649163][   T73]      netlink_rcv_skb+0x130/0x360
[ 3083.649163][   T73]      netlink_unicast+0x449/0x710
[ 3083.649163][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3083.649163][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3083.649163][   T73]      ___sys_sendmsg+0xee/0x170
[ 3083.649163][   T73]      __sys_sendmsg+0xcd/0x170
[ 3083.649163][   T73]      do_syscall_64+0xc6/0x1e0
[ 3083.649163][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3083.649163][   T73] 
[ 3083.651148][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3083.651148][   T73]      netdev_get_by_index+0x5e/0x80
[ 3083.651148][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3083.651148][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3083.651148][   T73]      ip6_route_add+0x1c/0x140
[ 3083.651148][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3083.651148][   T73]      addrconf_add_dev+0xe2/0x170
[ 3083.651148][   T73]      inet6_addr_add+0x12f/0xa40
[ 3083.651148][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3083.651148][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3083.651148][   T73]      netlink_rcv_skb+0x130/0x360
[ 3083.651148][   T73]      netlink_unicast+0x449/0x710
[ 3083.651148][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3083.651148][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3083.651148][   T73]      ___sys_sendmsg+0xee/0x170
[ 3083.651148][   T73]      __sys_sendmsg+0xcd/0x170
[ 3083.651148][   T73]      do_syscall_64+0xc6/0x1e0
[ 3083.651148][   T73] 
[ 3083.653082][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3083.653082][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3083.653082][   T73]      ipv6_find_idev+0x102/0x170
[ 3083.653082][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3083.653082][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3083.653082][   T73]      netlink_rcv_skb+0x130/0x360
[ 3083.653082][   T73]      netlink_unicast+0x449/0x710
[ 3083.653082][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3083.653082][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3083.653082][   T73]      ___sys_sendmsg+0xee/0x170
[ 3083.653082][   T73]      __sys_sendmsg+0xcd/0x170
[ 3083.653082][   T73]      do_syscall_64+0xc6/0x1e0
[ 3083.653082][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3083.653082][   T73] 
[ 3083.654604][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3083.654604][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3083.654604][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3083.654604][   T73]      ipv6_find_idev+0x102/0x170
[ 3083.654604][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3083.654604][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3083.654604][   T73]      netlink_rcv_skb+0x130/0x360
[ 3083.654604][   T73]      netlink_unicast+0x449/0x710
[ 3083.654604][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3083.654604][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3083.654604][   T73]      ___sys_sendmsg+0xee/0x170
[ 3083.654604][   T73]      __sys_sendmsg+0xcd/0x170
[ 3083.654604][   T73]      do_syscall_64+0xc6/0x1e0
[ 3083.654604][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3083.654604][   T73] 
[ 3083.656313][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3083.656585][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3083.656585][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3083.656585][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3083.656585][   T73]      fib6_nh_init+0xa22/0x1580
[ 3083.656585][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3083.656585][   T73]      ip6_route_add+0x1c/0x140
[ 3083.656585][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3083.656585][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3083.656585][   T73]      netlink_rcv_skb+0x130/0x360
[ 3083.656585][   T73]      netlink_unicast+0x449/0x710
[ 3083.656585][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3083.656585][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3083.656585][   T73]      ___sys_sendmsg+0xee/0x170
[ 3083.656585][   T73]      __sys_sendmsg+0xcd/0x170
[ 3083.656585][   T73]      do_syscall_64+0xc6/0x1e0
[ 3083.656585][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3083.656585][   T73] 
[ 3083.658626][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3083.658626][   T73]      dst_init+0x84/0x4a0
[ 3083.658626][   T73]      dst_alloc+0x97/0x150
[ 3083.658626][   T73]      ip6_dst_alloc+0x23/0x90
[ 3083.658626][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3083.658626][   T73]      ip6_pol_route+0x56f/0x840
[ 3083.658626][   T73]      fib6_rule_lookup+0x456/0x630
[ 3083.658626][   T73]      ip6_route_input+0x59c/0xa50
[ 3083.658626][   T73]      ipv6_rcv+0x397/0x810
[ 3083.658626][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3083.658626][   T73]      process_backlog+0x101/0x620
[ 3083.658626][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3083.658626][   T73]      net_rx_action+0x495/0xbe0
[ 3083.658626][   T73]      __do_softirq+0x1b5/0x7f6
[ 3083.658626][   T73] 
[ 3083.660519][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3083.660519][   T73]      netdev_get_by_index+0x5e/0x80
[ 3083.660519][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3083.660519][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3083.660519][   T73]      ip6_route_add+0x1c/0x140
[ 3083.660519][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3083.660519][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3083.660519][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3083.660519][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3083.660519][   T73]      netlink_rcv_skb+0x130/0x360
[ 3083.660519][   T73]      netlink_unicast+0x449/0x710
[ 3083.660519][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3083.660519][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3083.660519][   T73]      ___sys_sendmsg+0xee/0x170
[ 3083.660519][   T73]      __sys_sendmsg+0xcd/0x170
[ 3083.660519][   T73]      do_syscall_64+0xc6/0x1e0
[ 3083.660519][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3083.660519][   T73] 
[ 3083.662739][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3083.662739][   T73]      netdev_get_by_index+0x5e/0x80
[ 3083.662739][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3083.662739][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3083.662739][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3083.662739][   T73]      ipv6_add_addr+0x411/0x2000
[ 3083.662739][   T73]      inet6_addr_add+0x30e/0xa40
[ 3083.662739][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3083.662739][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3083.662739][   T73]      netlink_rcv_skb+0x130/0x360
[ 3083.662739][   T73]      netlink_unicast+0x449/0x710
[ 3083.662739][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3083.662739][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3083.662739][   T73]      ___sys_sendmsg+0xee/0x170
[ 3083.662739][   T73]      __sys_sendmsg+0xcd/0x170
[ 3083.662739][   T73]      do_syscall_64+0xc6/0x1e0
[ 3083.662739][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3083.662739][   T73] 
[ 3083.664963][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3083.664963][   T73]      netdev_get_by_index+0x5e/0x80
[ 3083.664963][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3083.664963][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3083.664963][   T73]      ip6_route_add+0x1c/0x140
[ 3083.664963][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3083.664963][   T73]      addrconf_add_dev+0xe2/0x170
[ 3083.664963][   T73]      inet6_addr_add+0x12f/0xa40
[ 3083.664963][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3083.664963][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3083.664963][   T73]      netlink_rcv_skb+0x130/0x360
[ 3083.664963][   T73]      netlink_unicast+0x449/0x710
[ 3083.664963][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3083.664963][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3083.664963][   T73]      ___sys_sendmsg+0xee/0x170
[ 3083.664963][   T73]      __sys_sendmsg+0xcd/0x170
[ 3083.664963][   T73]      do_syscall_64+0xc6/0x1e0
[ 3083.664963][   T73] 
[ 3083.667152][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3083.667152][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3083.667152][   T73]      ipv6_find_idev+0x102/0x170
[ 3083.667152][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3083.667152][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3083.667152][   T73]      netlink_rcv_skb+0x130/0x360
[ 3083.667152][   T73]      netlink_unicast+0x449/0x710
[ 3083.667152][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3083.667152][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3083.667152][   T73]      ___sys_sendmsg+0xee/0x170
[ 3083.667152][   T73]      __sys_sendmsg+0xcd/0x170
[ 3083.667152][   T73]      do_syscall_64+0xc6/0x1e0
[ 3083.667152][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3083.667152][   T73] 
[ 3083.668926][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3083.668926][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3083.668926][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3083.668926][   T73]      ipv6_find_idev+0x102/0x170
[ 3083.668926][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3083.668926][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3083.668926][   T73]      netlink_rcv_skb+0x130/0x360
[ 3083.668926][   T73]      netlink_unicast+0x449/0x710
[ 3083.668926][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3083.668926][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3083.668926][   T73]      ___sys_sendmsg+0xee/0x170
[ 3083.668926][   T73]      __sys_sendmsg+0xcd/0x170
[ 3083.668926][   T73]      do_syscall_64+0xc6/0x1e0
[ 3083.668926][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3083.668926][   T73] 
[ 3083.670783][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3083.671057][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3083.671057][   T73]      netdev_get_by_index+0x5e/0x80
[ 3083.671057][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3083.671057][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3083.671057][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3083.671057][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3083.671057][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3083.671057][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3083.671057][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3083.671057][   T73]      addrconf_dad_begin+0x310/0x670
[ 3083.671057][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3083.671057][   T73]      process_one_work+0x84d/0x18a0
[ 3083.671057][   T73]      worker_thread+0x587/0xd30
[ 3083.671057][   T73]      kthread+0x28a/0x350
[ 3083.671057][   T73]      ret_from_fork+0x31/0x70
[ 3083.671057][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3083.671057][   T73] 
[ 3083.673199][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3083.673199][   T73]      netdev_get_by_index+0x5e/0x80
[ 3083.673199][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3083.673199][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3083.673199][   T73]      ip6_route_add+0x1c/0x140
[ 3083.673199][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3083.673199][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3083.673199][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3083.673199][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3083.673199][   T73]      netlink_rcv_skb+0x130/0x360
[ 3083.673199][   T73]      netlink_unicast+0x449/0x710
[ 3083.673199][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3083.673199][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3083.673199][   T73]      ___sys_sendmsg+0xee/0x170
[ 3083.673199][   T73]      __sys_sendmsg+0xcd/0x170
[ 3083.673199][   T73]      do_syscall_64+0xc6/0x1e0
[ 3083.673199][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3083.673199][   T73] 
[ 3083.675424][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3083.675424][   T73]      netdev_get_by_index+0x5e/0x80
[ 3083.675424][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3083.675424][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3083.675424][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3083.675424][   T73]      ipv6_add_addr+0x411/0x2000
[ 3083.675424][   T73]      inet6_addr_add+0x30e/0xa40
[ 3083.675424][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3083.675424][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3083.675424][   T73]      netlink_rcv_skb+0x130/0x360
[ 3083.675424][   T73]      netlink_unicast+0x449/0x710
[ 3083.675424][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3083.675424][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3083.675424][   T73]      ___sys_sendmsg+0xee/0x170
[ 3083.675424][   T73]      __sys_sendmsg+0xcd/0x170
[ 3083.675424][   T73]      do_syscall_64+0xc6/0x1e0
[ 3083.675424][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3083.675424][   T73] 
[ 3083.677713][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3083.677713][   T73]      netdev_get_by_index+0x5e/0x80
[ 3083.677713][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3083.677713][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3083.677713][   T73]      ip6_route_add+0x1c/0x140
[ 3083.677713][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3083.677713][   T73]      addrconf_add_dev+0xe2/0x170
[ 3083.677713][   T73]      inet6_addr_add+0x12f/0xa40
[ 3083.677713][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3083.677713][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3083.677713][   T73]      netlink_rcv_skb+0x130/0x360
[ 3083.677713][   T73]      netlink_unicast+0x449/0x710
[ 3083.677713][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3083.677713][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3083.677713][   T73]      ___sys_sendmsg+0xee/0x170
[ 3083.677713][   T73]      __sys_sendmsg+0xcd/0x170
[ 3083.677713][   T73]      do_syscall_64+0xc6/0x1e0
[ 3083.677713][   T73] 
[ 3083.679840][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3083.679840][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3083.679840][   T73]      ipv6_find_idev+0x102/0x170
[ 3083.679840][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3083.679840][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3083.679840][   T73]      netlink_rcv_skb+0x130/0x360
[ 3083.679840][   T73]      netlink_unicast+0x449/0x710
[ 3083.679840][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3083.679840][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3083.679840][   T73]      ___sys_sendmsg+0xee/0x170
[ 3083.679840][   T73]      __sys_sendmsg+0xcd/0x170
[ 3083.679840][   T73]      do_syscall_64+0xc6/0x1e0
[ 3083.679840][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3083.679840][   T73] 
[ 3083.681559][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3083.681559][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3083.681559][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3083.681559][   T73]      ipv6_find_idev+0x102/0x170
[ 3083.681559][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3083.681559][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3083.681559][   T73]      netlink_rcv_skb+0x130/0x360
[ 3083.681559][   T73]      netlink_unicast+0x449/0x710
[ 3083.681559][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3083.681559][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3083.681559][   T73]      ___sys_sendmsg+0xee/0x170
[ 3083.681559][   T73]      __sys_sendmsg+0xcd/0x170
[ 3083.681559][   T73]      do_syscall_64+0xc6/0x1e0
[ 3083.681559][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3083.681559][   T73] 
[ 3093.935702][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3093.936197][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3093.936197][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3093.936197][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3093.936197][   T73]      fib6_nh_init+0xa22/0x1580
[ 3093.936197][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3093.936197][   T73]      ip6_route_add+0x1c/0x140
[ 3093.936197][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3093.936197][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3093.936197][   T73]      netlink_rcv_skb+0x130/0x360
[ 3093.936197][   T73]      netlink_unicast+0x449/0x710
[ 3093.936197][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3093.936197][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3093.936197][   T73]      ___sys_sendmsg+0xee/0x170
[ 3093.936197][   T73]      __sys_sendmsg+0xcd/0x170
[ 3093.936197][   T73]      do_syscall_64+0xc6/0x1e0
[ 3093.936197][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3093.936197][   T73] 
[ 3093.938089][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3093.938089][   T73]      dst_init+0x84/0x4a0
[ 3093.938089][   T73]      dst_alloc+0x97/0x150
[ 3093.938089][   T73]      ip6_dst_alloc+0x23/0x90
[ 3093.938089][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3093.938089][   T73]      ip6_pol_route+0x56f/0x840
[ 3093.938089][   T73]      fib6_rule_lookup+0x456/0x630
[ 3093.938089][   T73]      ip6_route_input+0x59c/0xa50
[ 3093.938089][   T73]      ipv6_rcv+0x397/0x810
[ 3093.938089][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3093.938089][   T73]      process_backlog+0x101/0x620
[ 3093.938089][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3093.938089][   T73]      net_rx_action+0x495/0xbe0
[ 3093.938089][   T73]      __do_softirq+0x1b5/0x7f6
[ 3093.938089][   T73] 
[ 3093.939722][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3093.939722][   T73]      netdev_get_by_index+0x5e/0x80
[ 3093.939722][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3093.939722][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3093.939722][   T73]      ip6_route_add+0x1c/0x140
[ 3093.939722][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3093.939722][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3093.939722][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3093.939722][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3093.939722][   T73]      netlink_rcv_skb+0x130/0x360
[ 3093.939722][   T73]      netlink_unicast+0x449/0x710
[ 3093.939722][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3093.939722][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3093.939722][   T73]      ___sys_sendmsg+0xee/0x170
[ 3093.939722][   T73]      __sys_sendmsg+0xcd/0x170
[ 3093.939722][   T73]      do_syscall_64+0xc6/0x1e0
[ 3093.939722][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3093.939722][   T73] 
[ 3093.941724][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3093.941724][   T73]      netdev_get_by_index+0x5e/0x80
[ 3093.941724][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3093.941724][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3093.941724][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3093.941724][   T73]      ipv6_add_addr+0x411/0x2000
[ 3093.941724][   T73]      inet6_addr_add+0x30e/0xa40
[ 3093.941724][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3093.941724][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3093.941724][   T73]      netlink_rcv_skb+0x130/0x360
[ 3093.941724][   T73]      netlink_unicast+0x449/0x710
[ 3093.941724][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3093.941724][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3093.941724][   T73]      ___sys_sendmsg+0xee/0x170
[ 3093.941724][   T73]      __sys_sendmsg+0xcd/0x170
[ 3093.941724][   T73]      do_syscall_64+0xc6/0x1e0
[ 3093.941724][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3093.941724][   T73] 
[ 3093.943766][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3093.943766][   T73]      netdev_get_by_index+0x5e/0x80
[ 3093.943766][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3093.943766][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3093.943766][   T73]      ip6_route_add+0x1c/0x140
[ 3093.943766][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3093.943766][   T73]      addrconf_add_dev+0xe2/0x170
[ 3093.943766][   T73]      inet6_addr_add+0x12f/0xa40
[ 3093.943766][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3093.943766][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3093.943766][   T73]      netlink_rcv_skb+0x130/0x360
[ 3093.943766][   T73]      netlink_unicast+0x449/0x710
[ 3093.943766][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3093.943766][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3093.943766][   T73]      ___sys_sendmsg+0xee/0x170
[ 3093.943766][   T73]      __sys_sendmsg+0xcd/0x170
[ 3093.943766][   T73]      do_syscall_64+0xc6/0x1e0
[ 3093.943766][   T73] 
[ 3093.945750][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3093.945750][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3093.945750][   T73]      ipv6_find_idev+0x102/0x170
[ 3093.945750][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3093.945750][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3093.945750][   T73]      netlink_rcv_skb+0x130/0x360
[ 3093.945750][   T73]      netlink_unicast+0x449/0x710
[ 3093.945750][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3093.945750][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3093.945750][   T73]      ___sys_sendmsg+0xee/0x170
[ 3093.945750][   T73]      __sys_sendmsg+0xcd/0x170
[ 3093.945750][   T73]      do_syscall_64+0xc6/0x1e0
[ 3093.945750][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3093.945750][   T73] 
[ 3093.947321][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3093.947321][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3093.947321][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3093.947321][   T73]      ipv6_find_idev+0x102/0x170
[ 3093.947321][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3093.947321][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3093.947321][   T73]      netlink_rcv_skb+0x130/0x360
[ 3093.947321][   T73]      netlink_unicast+0x449/0x710
[ 3093.947321][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3093.947321][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3093.947321][   T73]      ___sys_sendmsg+0xee/0x170
[ 3093.947321][   T73]      __sys_sendmsg+0xcd/0x170
[ 3093.947321][   T73]      do_syscall_64+0xc6/0x1e0
[ 3093.947321][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3093.947321][   T73] 
[ 3093.949011][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3093.949295][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3093.949295][   T73]      netdev_get_by_index+0x5e/0x80
[ 3093.949295][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3093.949295][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3093.949295][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3093.949295][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3093.949295][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3093.949295][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3093.949295][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3093.949295][   T73]      addrconf_dad_begin+0x310/0x670
[ 3093.949295][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3093.949295][   T73]      process_one_work+0x84d/0x18a0
[ 3093.949295][   T73]      worker_thread+0x587/0xd30
[ 3093.949295][   T73]      kthread+0x28a/0x350
[ 3093.949295][   T73]      ret_from_fork+0x31/0x70
[ 3093.949295][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3093.949295][   T73] 
[ 3093.951223][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3093.951223][   T73]      netdev_get_by_index+0x5e/0x80
[ 3093.951223][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3093.951223][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3093.951223][   T73]      ip6_route_add+0x1c/0x140
[ 3093.951223][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3093.951223][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3093.951223][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3093.951223][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3093.951223][   T73]      netlink_rcv_skb+0x130/0x360
[ 3093.951223][   T73]      netlink_unicast+0x449/0x710
[ 3093.951223][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3093.951223][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3093.951223][   T73]      ___sys_sendmsg+0xee/0x170
[ 3093.951223][   T73]      __sys_sendmsg+0xcd/0x170
[ 3093.951223][   T73]      do_syscall_64+0xc6/0x1e0
[ 3093.951223][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3093.951223][   T73] 
[ 3093.953230][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3093.953230][   T73]      netdev_get_by_index+0x5e/0x80
[ 3093.953230][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3093.953230][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3093.953230][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3093.953230][   T73]      ipv6_add_addr+0x411/0x2000
[ 3093.953230][   T73]      inet6_addr_add+0x30e/0xa40
[ 3093.953230][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3093.953230][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3093.953230][   T73]      netlink_rcv_skb+0x130/0x360
[ 3093.953230][   T73]      netlink_unicast+0x449/0x710
[ 3093.953230][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3093.953230][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3093.953230][   T73]      ___sys_sendmsg+0xee/0x170
[ 3093.953230][   T73]      __sys_sendmsg+0xcd/0x170
[ 3093.953230][   T73]      do_syscall_64+0xc6/0x1e0
[ 3093.953230][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3093.953230][   T73] 
[ 3093.955226][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3093.955226][   T73]      netdev_get_by_index+0x5e/0x80
[ 3093.955226][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3093.955226][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3093.955226][   T73]      ip6_route_add+0x1c/0x140
[ 3093.955226][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3093.955226][   T73]      addrconf_add_dev+0xe2/0x170
[ 3093.955226][   T73]      inet6_addr_add+0x12f/0xa40
[ 3093.955226][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3093.955226][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3093.955226][   T73]      netlink_rcv_skb+0x130/0x360
[ 3093.955226][   T73]      netlink_unicast+0x449/0x710
[ 3093.955226][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3093.955226][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3093.955226][   T73]      ___sys_sendmsg+0xee/0x170
[ 3093.955226][   T73]      __sys_sendmsg+0xcd/0x170
[ 3093.955226][   T73]      do_syscall_64+0xc6/0x1e0
[ 3093.955226][   T73] 
[ 3093.957183][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3093.957183][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3093.957183][   T73]      ipv6_find_idev+0x102/0x170
[ 3093.957183][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3093.957183][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3093.957183][   T73]      netlink_rcv_skb+0x130/0x360
[ 3093.957183][   T73]      netlink_unicast+0x449/0x710
[ 3093.957183][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3093.957183][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3093.957183][   T73]      ___sys_sendmsg+0xee/0x170
[ 3093.957183][   T73]      __sys_sendmsg+0xcd/0x170
[ 3093.957183][   T73]      do_syscall_64+0xc6/0x1e0
[ 3093.957183][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3093.957183][   T73] 
[ 3093.958720][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3093.958720][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3093.958720][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3093.958720][   T73]      ipv6_find_idev+0x102/0x170
[ 3093.958720][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3093.958720][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3093.958720][   T73]      netlink_rcv_skb+0x130/0x360
[ 3093.958720][   T73]      netlink_unicast+0x449/0x710
[ 3093.958720][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3093.958720][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3093.958720][   T73]      ___sys_sendmsg+0xee/0x170
[ 3093.958720][   T73]      __sys_sendmsg+0xcd/0x170
[ 3093.958720][   T73]      do_syscall_64+0xc6/0x1e0
[ 3093.958720][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3093.958720][   T73] 
[ 3093.960402][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3093.960679][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3093.960679][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3093.960679][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3093.960679][   T73]      fib6_nh_init+0xa22/0x1580
[ 3093.960679][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3093.960679][   T73]      ip6_route_add+0x1c/0x140
[ 3093.960679][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3093.960679][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3093.960679][   T73]      netlink_rcv_skb+0x130/0x360
[ 3093.960679][   T73]      netlink_unicast+0x449/0x710
[ 3093.960679][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3093.960679][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3093.960679][   T73]      ___sys_sendmsg+0xee/0x170
[ 3093.960679][   T73]      __sys_sendmsg+0xcd/0x170
[ 3093.960679][   T73]      do_syscall_64+0xc6/0x1e0
[ 3093.960679][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3093.960679][   T73] 
[ 3093.962755][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3093.962755][   T73]      dst_init+0x84/0x4a0
[ 3093.962755][   T73]      dst_alloc+0x97/0x150
[ 3093.962755][   T73]      ip6_dst_alloc+0x23/0x90
[ 3093.962755][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3093.962755][   T73]      ip6_pol_route+0x56f/0x840
[ 3093.962755][   T73]      fib6_rule_lookup+0x456/0x630
[ 3093.962755][   T73]      ip6_route_input+0x59c/0xa50
[ 3093.962755][   T73]      ipv6_rcv+0x397/0x810
[ 3093.962755][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3093.962755][   T73]      process_backlog+0x101/0x620
[ 3093.962755][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3093.962755][   T73]      net_rx_action+0x495/0xbe0
[ 3093.962755][   T73]      __do_softirq+0x1b5/0x7f6
[ 3093.962755][   T73] 
[ 3093.964640][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3093.964640][   T73]      netdev_get_by_index+0x5e/0x80
[ 3093.964640][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3093.964640][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3093.964640][   T73]      ip6_route_add+0x1c/0x140
[ 3093.964640][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3093.964640][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3093.964640][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3093.964640][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3093.964640][   T73]      netlink_rcv_skb+0x130/0x360
[ 3093.964640][   T73]      netlink_unicast+0x449/0x710
[ 3093.964640][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3093.964640][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3093.964640][   T73]      ___sys_sendmsg+0xee/0x170
[ 3093.964640][   T73]      __sys_sendmsg+0xcd/0x170
[ 3093.964640][   T73]      do_syscall_64+0xc6/0x1e0
[ 3093.964640][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3093.964640][   T73] 
[ 3093.966885][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3093.966885][   T73]      netdev_get_by_index+0x5e/0x80
[ 3093.966885][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3093.966885][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3093.966885][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3093.966885][   T73]      ipv6_add_addr+0x411/0x2000
[ 3093.966885][   T73]      inet6_addr_add+0x30e/0xa40
[ 3093.966885][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3093.966885][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3093.966885][   T73]      netlink_rcv_skb+0x130/0x360
[ 3093.966885][   T73]      netlink_unicast+0x449/0x710
[ 3093.966885][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3093.966885][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3093.966885][   T73]      ___sys_sendmsg+0xee/0x170
[ 3093.966885][   T73]      __sys_sendmsg+0xcd/0x170
[ 3093.966885][   T73]      do_syscall_64+0xc6/0x1e0
[ 3093.966885][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3093.966885][   T73] 
[ 3093.969129][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3093.969129][   T73]      netdev_get_by_index+0x5e/0x80
[ 3093.969129][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3093.969129][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3093.969129][   T73]      ip6_route_add+0x1c/0x140
[ 3093.969129][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3093.969129][   T73]      addrconf_add_dev+0xe2/0x170
[ 3093.969129][   T73]      inet6_addr_add+0x12f/0xa40
[ 3093.969129][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3093.969129][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3093.969129][   T73]      netlink_rcv_skb+0x130/0x360
[ 3093.969129][   T73]      netlink_unicast+0x449/0x710
[ 3093.969129][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3093.969129][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3093.969129][   T73]      ___sys_sendmsg+0xee/0x170
[ 3093.969129][   T73]      __sys_sendmsg+0xcd/0x170
[ 3093.969129][   T73]      do_syscall_64+0xc6/0x1e0
[ 3093.969129][   T73] 
[ 3093.971223][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3093.971223][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3093.971223][   T73]      ipv6_find_idev+0x102/0x170
[ 3093.971223][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3093.971223][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3093.971223][   T73]      netlink_rcv_skb+0x130/0x360
[ 3093.971223][   T73]      netlink_unicast+0x449/0x710
[ 3093.971223][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3093.971223][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3093.971223][   T73]      ___sys_sendmsg+0xee/0x170
[ 3093.971223][   T73]      __sys_sendmsg+0xcd/0x170
[ 3093.971223][   T73]      do_syscall_64+0xc6/0x1e0
[ 3093.971223][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3093.971223][   T73] 
[ 3093.973022][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3093.973022][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3093.973022][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3093.973022][   T73]      ipv6_find_idev+0x102/0x170
[ 3093.973022][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3093.973022][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3093.973022][   T73]      netlink_rcv_skb+0x130/0x360
[ 3093.973022][   T73]      netlink_unicast+0x449/0x710
[ 3093.973022][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3093.973022][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3093.973022][   T73]      ___sys_sendmsg+0xee/0x170
[ 3093.973022][   T73]      __sys_sendmsg+0xcd/0x170
[ 3093.973022][   T73]      do_syscall_64+0xc6/0x1e0
[ 3093.973022][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3093.973022][   T73] 
[ 3093.974936][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3093.975214][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3093.975214][   T73]      netdev_get_by_index+0x5e/0x80
[ 3093.975214][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3093.975214][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3093.975214][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3093.975214][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3093.975214][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3093.975214][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3093.975214][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3093.975214][   T73]      addrconf_dad_begin+0x310/0x670
[ 3093.975214][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3093.975214][   T73]      process_one_work+0x84d/0x18a0
[ 3093.975214][   T73]      worker_thread+0x587/0xd30
[ 3093.975214][   T73]      kthread+0x28a/0x350
[ 3093.975214][   T73]      ret_from_fork+0x31/0x70
[ 3093.975214][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3093.975214][   T73] 
[ 3093.977366][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3093.977366][   T73]      netdev_get_by_index+0x5e/0x80
[ 3093.977366][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3093.977366][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3093.977366][   T73]      ip6_route_add+0x1c/0x140
[ 3093.977366][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3093.977366][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3093.977366][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3093.977366][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3093.977366][   T73]      netlink_rcv_skb+0x130/0x360
[ 3093.977366][   T73]      netlink_unicast+0x449/0x710
[ 3093.977366][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3093.977366][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3093.977366][   T73]      ___sys_sendmsg+0xee/0x170
[ 3093.977366][   T73]      __sys_sendmsg+0xcd/0x170
[ 3093.977366][   T73]      do_syscall_64+0xc6/0x1e0
[ 3093.977366][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3093.977366][   T73] 
[ 3093.979547][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3093.979547][   T73]      netdev_get_by_index+0x5e/0x80
[ 3093.979547][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3093.979547][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3093.979547][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3093.979547][   T73]      ipv6_add_addr+0x411/0x2000
[ 3093.979547][   T73]      inet6_addr_add+0x30e/0xa40
[ 3093.979547][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3093.979547][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3093.979547][   T73]      netlink_rcv_skb+0x130/0x360
[ 3093.979547][   T73]      netlink_unicast+0x449/0x710
[ 3093.979547][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3093.979547][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3093.979547][   T73]      ___sys_sendmsg+0xee/0x170
[ 3093.979547][   T73]      __sys_sendmsg+0xcd/0x170
[ 3093.979547][   T73]      do_syscall_64+0xc6/0x1e0
[ 3093.979547][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3093.979547][   T73] 
[ 3093.981801][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3093.981801][   T73]      netdev_get_by_index+0x5e/0x80
[ 3093.981801][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3093.981801][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3093.981801][   T73]      ip6_route_add+0x1c/0x140
[ 3093.981801][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3093.981801][   T73]      addrconf_add_dev+0xe2/0x170
[ 3093.981801][   T73]      inet6_addr_add+0x12f/0xa40
[ 3093.981801][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3093.981801][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3093.981801][   T73]      netlink_rcv_skb+0x130/0x360
[ 3093.981801][   T73]      netlink_unicast+0x449/0x710
[ 3093.981801][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3093.981801][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3093.981801][   T73]      ___sys_sendmsg+0xee/0x170
[ 3093.981801][   T73]      __sys_sendmsg+0xcd/0x170
[ 3093.981801][   T73]      do_syscall_64+0xc6/0x1e0
[ 3093.981801][   T73] 
[ 3093.984077][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3093.984077][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3093.984077][   T73]      ipv6_find_idev+0x102/0x170
[ 3093.984077][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3093.984077][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3093.984077][   T73]      netlink_rcv_skb+0x130/0x360
[ 3093.984077][   T73]      netlink_unicast+0x449/0x710
[ 3093.984077][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3093.984077][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3093.984077][   T73]      ___sys_sendmsg+0xee/0x170
[ 3093.984077][   T73]      __sys_sendmsg+0xcd/0x170
[ 3093.984077][   T73]      do_syscall_64+0xc6/0x1e0
[ 3093.984077][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3093.984077][   T73] 
[ 3093.985799][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3093.985799][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3093.985799][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3093.985799][   T73]      ipv6_find_idev+0x102/0x170
[ 3093.985799][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3093.985799][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3093.985799][   T73]      netlink_rcv_skb+0x130/0x360
[ 3093.985799][   T73]      netlink_unicast+0x449/0x710
[ 3093.985799][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3093.985799][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3093.985799][   T73]      ___sys_sendmsg+0xee/0x170
[ 3093.985799][   T73]      __sys_sendmsg+0xcd/0x170
[ 3093.985799][   T73]      do_syscall_64+0xc6/0x1e0
[ 3093.985799][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3093.985799][   T73] 
[ 3104.119782][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3104.120327][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3104.120327][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3104.120327][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3104.120327][   T73]      fib6_nh_init+0xa22/0x1580
[ 3104.120327][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3104.120327][   T73]      ip6_route_add+0x1c/0x140
[ 3104.120327][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3104.120327][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3104.120327][   T73]      netlink_rcv_skb+0x130/0x360
[ 3104.120327][   T73]      netlink_unicast+0x449/0x710
[ 3104.120327][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3104.120327][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3104.120327][   T73]      ___sys_sendmsg+0xee/0x170
[ 3104.120327][   T73]      __sys_sendmsg+0xcd/0x170
[ 3104.120327][   T73]      do_syscall_64+0xc6/0x1e0
[ 3104.120327][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3104.120327][   T73] 
[ 3104.122243][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3104.122243][   T73]      dst_init+0x84/0x4a0
[ 3104.122243][   T73]      dst_alloc+0x97/0x150
[ 3104.122243][   T73]      ip6_dst_alloc+0x23/0x90
[ 3104.122243][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3104.122243][   T73]      ip6_pol_route+0x56f/0x840
[ 3104.122243][   T73]      fib6_rule_lookup+0x456/0x630
[ 3104.122243][   T73]      ip6_route_input+0x59c/0xa50
[ 3104.122243][   T73]      ipv6_rcv+0x397/0x810
[ 3104.122243][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3104.122243][   T73]      process_backlog+0x101/0x620
[ 3104.122243][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3104.122243][   T73]      net_rx_action+0x495/0xbe0
[ 3104.122243][   T73]      __do_softirq+0x1b5/0x7f6
[ 3104.122243][   T73] 
[ 3104.123902][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3104.123902][   T73]      netdev_get_by_index+0x5e/0x80
[ 3104.123902][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3104.123902][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3104.123902][   T73]      ip6_route_add+0x1c/0x140
[ 3104.123902][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3104.123902][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3104.123902][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3104.123902][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3104.123902][   T73]      netlink_rcv_skb+0x130/0x360
[ 3104.123902][   T73]      netlink_unicast+0x449/0x710
[ 3104.123902][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3104.123902][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3104.123902][   T73]      ___sys_sendmsg+0xee/0x170
[ 3104.123902][   T73]      __sys_sendmsg+0xcd/0x170
[ 3104.123902][   T73]      do_syscall_64+0xc6/0x1e0
[ 3104.123902][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3104.123902][   T73] 
[ 3104.125920][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3104.125920][   T73]      netdev_get_by_index+0x5e/0x80
[ 3104.125920][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3104.125920][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3104.125920][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3104.125920][   T73]      ipv6_add_addr+0x411/0x2000
[ 3104.125920][   T73]      inet6_addr_add+0x30e/0xa40
[ 3104.125920][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3104.125920][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3104.125920][   T73]      netlink_rcv_skb+0x130/0x360
[ 3104.125920][   T73]      netlink_unicast+0x449/0x710
[ 3104.125920][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3104.125920][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3104.125920][   T73]      ___sys_sendmsg+0xee/0x170
[ 3104.125920][   T73]      __sys_sendmsg+0xcd/0x170
[ 3104.125920][   T73]      do_syscall_64+0xc6/0x1e0
[ 3104.125920][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3104.125920][   T73] 
[ 3104.127934][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3104.127934][   T73]      netdev_get_by_index+0x5e/0x80
[ 3104.127934][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3104.127934][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3104.127934][   T73]      ip6_route_add+0x1c/0x140
[ 3104.127934][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3104.127934][   T73]      addrconf_add_dev+0xe2/0x170
[ 3104.127934][   T73]      inet6_addr_add+0x12f/0xa40
[ 3104.127934][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3104.127934][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3104.127934][   T73]      netlink_rcv_skb+0x130/0x360
[ 3104.127934][   T73]      netlink_unicast+0x449/0x710
[ 3104.127934][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3104.127934][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3104.127934][   T73]      ___sys_sendmsg+0xee/0x170
[ 3104.127934][   T73]      __sys_sendmsg+0xcd/0x170
[ 3104.127934][   T73]      do_syscall_64+0xc6/0x1e0
[ 3104.127934][   T73] 
[ 3104.129952][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3104.129952][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3104.129952][   T73]      ipv6_find_idev+0x102/0x170
[ 3104.129952][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3104.129952][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3104.129952][   T73]      netlink_rcv_skb+0x130/0x360
[ 3104.129952][   T73]      netlink_unicast+0x449/0x710
[ 3104.129952][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3104.129952][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3104.129952][   T73]      ___sys_sendmsg+0xee/0x170
[ 3104.129952][   T73]      __sys_sendmsg+0xcd/0x170
[ 3104.129952][   T73]      do_syscall_64+0xc6/0x1e0
[ 3104.129952][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3104.129952][   T73] 
[ 3104.131514][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3104.131514][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3104.131514][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3104.131514][   T73]      ipv6_find_idev+0x102/0x170
[ 3104.131514][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3104.131514][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3104.131514][   T73]      netlink_rcv_skb+0x130/0x360
[ 3104.131514][   T73]      netlink_unicast+0x449/0x710
[ 3104.131514][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3104.131514][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3104.131514][   T73]      ___sys_sendmsg+0xee/0x170
[ 3104.131514][   T73]      __sys_sendmsg+0xcd/0x170
[ 3104.131514][   T73]      do_syscall_64+0xc6/0x1e0
[ 3104.131514][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3104.131514][   T73] 
[ 3104.133244][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3104.133533][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3104.133533][   T73]      netdev_get_by_index+0x5e/0x80
[ 3104.133533][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3104.133533][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3104.133533][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3104.133533][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3104.133533][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3104.133533][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3104.133533][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3104.133533][   T73]      addrconf_dad_begin+0x310/0x670
[ 3104.133533][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3104.133533][   T73]      process_one_work+0x84d/0x18a0
[ 3104.133533][   T73]      worker_thread+0x587/0xd30
[ 3104.133533][   T73]      kthread+0x28a/0x350
[ 3104.133533][   T73]      ret_from_fork+0x31/0x70
[ 3104.133533][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3104.133533][   T73] 
[ 3104.135471][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3104.135471][   T73]      netdev_get_by_index+0x5e/0x80
[ 3104.135471][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3104.135471][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3104.135471][   T73]      ip6_route_add+0x1c/0x140
[ 3104.135471][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3104.135471][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3104.135471][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3104.135471][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3104.135471][   T73]      netlink_rcv_skb+0x130/0x360
[ 3104.135471][   T73]      netlink_unicast+0x449/0x710
[ 3104.135471][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3104.135471][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3104.135471][   T73]      ___sys_sendmsg+0xee/0x170
[ 3104.135471][   T73]      __sys_sendmsg+0xcd/0x170
[ 3104.135471][   T73]      do_syscall_64+0xc6/0x1e0
[ 3104.135471][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3104.135471][   T73] 
[ 3104.137504][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3104.137504][   T73]      netdev_get_by_index+0x5e/0x80
[ 3104.137504][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3104.137504][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3104.137504][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3104.137504][   T73]      ipv6_add_addr+0x411/0x2000
[ 3104.137504][   T73]      inet6_addr_add+0x30e/0xa40
[ 3104.137504][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3104.137504][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3104.137504][   T73]      netlink_rcv_skb+0x130/0x360
[ 3104.137504][   T73]      netlink_unicast+0x449/0x710
[ 3104.137504][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3104.137504][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3104.137504][   T73]      ___sys_sendmsg+0xee/0x170
[ 3104.137504][   T73]      __sys_sendmsg+0xcd/0x170
[ 3104.137504][   T73]      do_syscall_64+0xc6/0x1e0
[ 3104.137504][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3104.137504][   T73] 
[ 3104.139511][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3104.139511][   T73]      netdev_get_by_index+0x5e/0x80
[ 3104.139511][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3104.139511][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3104.139511][   T73]      ip6_route_add+0x1c/0x140
[ 3104.139511][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3104.139511][   T73]      addrconf_add_dev+0xe2/0x170
[ 3104.139511][   T73]      inet6_addr_add+0x12f/0xa40
[ 3104.139511][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3104.139511][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3104.139511][   T73]      netlink_rcv_skb+0x130/0x360
[ 3104.139511][   T73]      netlink_unicast+0x449/0x710
[ 3104.139511][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3104.139511][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3104.139511][   T73]      ___sys_sendmsg+0xee/0x170
[ 3104.139511][   T73]      __sys_sendmsg+0xcd/0x170
[ 3104.139511][   T73]      do_syscall_64+0xc6/0x1e0
[ 3104.139511][   T73] 
[ 3104.141492][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3104.141492][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3104.141492][   T73]      ipv6_find_idev+0x102/0x170
[ 3104.141492][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3104.141492][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3104.141492][   T73]      netlink_rcv_skb+0x130/0x360
[ 3104.141492][   T73]      netlink_unicast+0x449/0x710
[ 3104.141492][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3104.141492][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3104.141492][   T73]      ___sys_sendmsg+0xee/0x170
[ 3104.141492][   T73]      __sys_sendmsg+0xcd/0x170
[ 3104.141492][   T73]      do_syscall_64+0xc6/0x1e0
[ 3104.141492][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3104.141492][   T73] 
[ 3104.143037][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3104.143037][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3104.143037][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3104.143037][   T73]      ipv6_find_idev+0x102/0x170
[ 3104.143037][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3104.143037][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3104.143037][   T73]      netlink_rcv_skb+0x130/0x360
[ 3104.143037][   T73]      netlink_unicast+0x449/0x710
[ 3104.143037][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3104.143037][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3104.143037][   T73]      ___sys_sendmsg+0xee/0x170
[ 3104.143037][   T73]      __sys_sendmsg+0xcd/0x170
[ 3104.143037][   T73]      do_syscall_64+0xc6/0x1e0
[ 3104.143037][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3104.143037][   T73] 
[ 3104.144747][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3104.145015][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3104.145015][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3104.145015][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3104.145015][   T73]      fib6_nh_init+0xa22/0x1580
[ 3104.145015][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3104.145015][   T73]      ip6_route_add+0x1c/0x140
[ 3104.145015][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3104.145015][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3104.145015][   T73]      netlink_rcv_skb+0x130/0x360
[ 3104.145015][   T73]      netlink_unicast+0x449/0x710
[ 3104.145015][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3104.145015][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3104.145015][   T73]      ___sys_sendmsg+0xee/0x170
[ 3104.145015][   T73]      __sys_sendmsg+0xcd/0x170
[ 3104.145015][   T73]      do_syscall_64+0xc6/0x1e0
[ 3104.145015][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3104.145015][   T73] 
[ 3104.147134][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3104.147134][   T73]      dst_init+0x84/0x4a0
[ 3104.147134][   T73]      dst_alloc+0x97/0x150
[ 3104.147134][   T73]      ip6_dst_alloc+0x23/0x90
[ 3104.147134][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3104.147134][   T73]      ip6_pol_route+0x56f/0x840
[ 3104.147134][   T73]      fib6_rule_lookup+0x456/0x630
[ 3104.147134][   T73]      ip6_route_input+0x59c/0xa50
[ 3104.147134][   T73]      ipv6_rcv+0x397/0x810
[ 3104.147134][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3104.147134][   T73]      process_backlog+0x101/0x620
[ 3104.147134][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3104.147134][   T73]      net_rx_action+0x495/0xbe0
[ 3104.147134][   T73]      __do_softirq+0x1b5/0x7f6
[ 3104.147134][   T73] 
[ 3104.148962][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3104.148962][   T73]      netdev_get_by_index+0x5e/0x80
[ 3104.148962][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3104.148962][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3104.148962][   T73]      ip6_route_add+0x1c/0x140
[ 3104.148962][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3104.148962][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3104.148962][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3104.148962][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3104.148962][   T73]      netlink_rcv_skb+0x130/0x360
[ 3104.148962][   T73]      netlink_unicast+0x449/0x710
[ 3104.148962][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3104.148962][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3104.148962][   T73]      ___sys_sendmsg+0xee/0x170
[ 3104.148962][   T73]      __sys_sendmsg+0xcd/0x170
[ 3104.148962][   T73]      do_syscall_64+0xc6/0x1e0
[ 3104.148962][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3104.148962][   T73] 
[ 3104.151220][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3104.151220][   T73]      netdev_get_by_index+0x5e/0x80
[ 3104.151220][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3104.151220][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3104.151220][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3104.151220][   T73]      ipv6_add_addr+0x411/0x2000
[ 3104.151220][   T73]      inet6_addr_add+0x30e/0xa40
[ 3104.151220][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3104.151220][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3104.151220][   T73]      netlink_rcv_skb+0x130/0x360
[ 3104.151220][   T73]      netlink_unicast+0x449/0x710
[ 3104.151220][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3104.151220][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3104.151220][   T73]      ___sys_sendmsg+0xee/0x170
[ 3104.151220][   T73]      __sys_sendmsg+0xcd/0x170
[ 3104.151220][   T73]      do_syscall_64+0xc6/0x1e0
[ 3104.151220][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3104.151220][   T73] 
[ 3104.153531][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3104.153531][   T73]      netdev_get_by_index+0x5e/0x80
[ 3104.153531][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3104.153531][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3104.153531][   T73]      ip6_route_add+0x1c/0x140
[ 3104.153531][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3104.153531][   T73]      addrconf_add_dev+0xe2/0x170
[ 3104.153531][   T73]      inet6_addr_add+0x12f/0xa40
[ 3104.153531][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3104.153531][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3104.153531][   T73]      netlink_rcv_skb+0x130/0x360
[ 3104.153531][   T73]      netlink_unicast+0x449/0x710
[ 3104.153531][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3104.153531][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3104.153531][   T73]      ___sys_sendmsg+0xee/0x170
[ 3104.153531][   T73]      __sys_sendmsg+0xcd/0x170
[ 3104.153531][   T73]      do_syscall_64+0xc6/0x1e0
[ 3104.153531][   T73] 
[ 3104.155689][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3104.155689][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3104.155689][   T73]      ipv6_find_idev+0x102/0x170
[ 3104.155689][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3104.155689][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3104.155689][   T73]      netlink_rcv_skb+0x130/0x360
[ 3104.155689][   T73]      netlink_unicast+0x449/0x710
[ 3104.155689][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3104.155689][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3104.155689][   T73]      ___sys_sendmsg+0xee/0x170
[ 3104.155689][   T73]      __sys_sendmsg+0xcd/0x170
[ 3104.155689][   T73]      do_syscall_64+0xc6/0x1e0
[ 3104.155689][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3104.155689][   T73] 
[ 3104.157418][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3104.157418][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3104.157418][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3104.157418][   T73]      ipv6_find_idev+0x102/0x170
[ 3104.157418][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3104.157418][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3104.157418][   T73]      netlink_rcv_skb+0x130/0x360
[ 3104.157418][   T73]      netlink_unicast+0x449/0x710
[ 3104.157418][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3104.157418][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3104.157418][   T73]      ___sys_sendmsg+0xee/0x170
[ 3104.157418][   T73]      __sys_sendmsg+0xcd/0x170
[ 3104.157418][   T73]      do_syscall_64+0xc6/0x1e0
[ 3104.157418][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3104.157418][   T73] 
[ 3104.159374][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3104.159651][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3104.159651][   T73]      netdev_get_by_index+0x5e/0x80
[ 3104.159651][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3104.159651][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3104.159651][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3104.159651][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3104.159651][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3104.159651][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3104.159651][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3104.159651][   T73]      addrconf_dad_begin+0x310/0x670
[ 3104.159651][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3104.159651][   T73]      process_one_work+0x84d/0x18a0
[ 3104.159651][   T73]      worker_thread+0x587/0xd30
[ 3104.159651][   T73]      kthread+0x28a/0x350
[ 3104.159651][   T73]      ret_from_fork+0x31/0x70
[ 3104.159651][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3104.159651][   T73] 
[ 3104.161875][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3104.161875][   T73]      netdev_get_by_index+0x5e/0x80
[ 3104.161875][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3104.161875][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3104.161875][   T73]      ip6_route_add+0x1c/0x140
[ 3104.161875][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3104.161875][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3104.161875][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3104.161875][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3104.161875][   T73]      netlink_rcv_skb+0x130/0x360
[ 3104.161875][   T73]      netlink_unicast+0x449/0x710
[ 3104.161875][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3104.161875][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3104.161875][   T73]      ___sys_sendmsg+0xee/0x170
[ 3104.161875][   T73]      __sys_sendmsg+0xcd/0x170
[ 3104.161875][   T73]      do_syscall_64+0xc6/0x1e0
[ 3104.161875][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3104.161875][   T73] 
[ 3104.164353][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3104.164353][   T73]      netdev_get_by_index+0x5e/0x80
[ 3104.164353][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3104.164353][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3104.164353][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3104.164353][   T73]      ipv6_add_addr+0x411/0x2000
[ 3104.164353][   T73]      inet6_addr_add+0x30e/0xa40
[ 3104.164353][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3104.164353][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3104.164353][   T73]      netlink_rcv_skb+0x130/0x360
[ 3104.164353][   T73]      netlink_unicast+0x449/0x710
[ 3104.164353][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3104.164353][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3104.164353][   T73]      ___sys_sendmsg+0xee/0x170
[ 3104.164353][   T73]      __sys_sendmsg+0xcd/0x170
[ 3104.164353][   T73]      do_syscall_64+0xc6/0x1e0
[ 3104.164353][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3104.164353][   T73] 
[ 3104.166801][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3104.166801][   T73]      netdev_get_by_index+0x5e/0x80
[ 3104.166801][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3104.166801][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3104.166801][   T73]      ip6_route_add+0x1c/0x140
[ 3104.166801][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3104.166801][   T73]      addrconf_add_dev+0xe2/0x170
[ 3104.166801][   T73]      inet6_addr_add+0x12f/0xa40
[ 3104.166801][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3104.166801][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3104.166801][   T73]      netlink_rcv_skb+0x130/0x360
[ 3104.166801][   T73]      netlink_unicast+0x449/0x710
[ 3104.166801][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3104.166801][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3104.166801][   T73]      ___sys_sendmsg+0xee/0x170
[ 3104.166801][   T73]      __sys_sendmsg+0xcd/0x170
[ 3104.166801][   T73]      do_syscall_64+0xc6/0x1e0
[ 3104.166801][   T73] 
[ 3104.169038][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3104.169038][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3104.169038][   T73]      ipv6_find_idev+0x102/0x170
[ 3104.169038][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3104.169038][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3104.169038][   T73]      netlink_rcv_skb+0x130/0x360
[ 3104.169038][   T73]      netlink_unicast+0x449/0x710
[ 3104.169038][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3104.169038][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3104.169038][   T73]      ___sys_sendmsg+0xee/0x170
[ 3104.169038][   T73]      __sys_sendmsg+0xcd/0x170
[ 3104.169038][   T73]      do_syscall_64+0xc6/0x1e0
[ 3104.169038][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3104.169038][   T73] 
[ 3104.170778][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3104.170778][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3104.170778][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3104.170778][   T73]      ipv6_find_idev+0x102/0x170
[ 3104.170778][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3104.170778][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3104.170778][   T73]      netlink_rcv_skb+0x130/0x360
[ 3104.170778][   T73]      netlink_unicast+0x449/0x710
[ 3104.170778][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3104.170778][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3104.170778][   T73]      ___sys_sendmsg+0xee/0x170
[ 3104.170778][   T73]      __sys_sendmsg+0xcd/0x170
[ 3104.170778][   T73]      do_syscall_64+0xc6/0x1e0
[ 3104.170778][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3104.170778][   T73] 
[ 3114.415777][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3114.416230][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3114.416230][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3114.416230][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3114.416230][   T73]      fib6_nh_init+0xa22/0x1580
[ 3114.416230][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3114.416230][   T73]      ip6_route_add+0x1c/0x140
[ 3114.416230][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3114.416230][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3114.416230][   T73]      netlink_rcv_skb+0x130/0x360
[ 3114.416230][   T73]      netlink_unicast+0x449/0x710
[ 3114.416230][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3114.416230][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3114.416230][   T73]      ___sys_sendmsg+0xee/0x170
[ 3114.416230][   T73]      __sys_sendmsg+0xcd/0x170
[ 3114.416230][   T73]      do_syscall_64+0xc6/0x1e0
[ 3114.416230][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3114.416230][   T73] 
[ 3114.418151][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3114.418151][   T73]      dst_init+0x84/0x4a0
[ 3114.418151][   T73]      dst_alloc+0x97/0x150
[ 3114.418151][   T73]      ip6_dst_alloc+0x23/0x90
[ 3114.418151][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3114.418151][   T73]      ip6_pol_route+0x56f/0x840
[ 3114.418151][   T73]      fib6_rule_lookup+0x456/0x630
[ 3114.418151][   T73]      ip6_route_input+0x59c/0xa50
[ 3114.418151][   T73]      ipv6_rcv+0x397/0x810
[ 3114.418151][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3114.418151][   T73]      process_backlog+0x101/0x620
[ 3114.418151][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3114.418151][   T73]      net_rx_action+0x495/0xbe0
[ 3114.418151][   T73]      __do_softirq+0x1b5/0x7f6
[ 3114.418151][   T73] 
[ 3114.419810][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3114.419810][   T73]      netdev_get_by_index+0x5e/0x80
[ 3114.419810][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3114.419810][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3114.419810][   T73]      ip6_route_add+0x1c/0x140
[ 3114.419810][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3114.419810][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3114.419810][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3114.419810][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3114.419810][   T73]      netlink_rcv_skb+0x130/0x360
[ 3114.419810][   T73]      netlink_unicast+0x449/0x710
[ 3114.419810][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3114.419810][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3114.419810][   T73]      ___sys_sendmsg+0xee/0x170
[ 3114.419810][   T73]      __sys_sendmsg+0xcd/0x170
[ 3114.419810][   T73]      do_syscall_64+0xc6/0x1e0
[ 3114.419810][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3114.419810][   T73] 
[ 3114.421982][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3114.421982][   T73]      netdev_get_by_index+0x5e/0x80
[ 3114.421982][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3114.421982][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3114.421982][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3114.421982][   T73]      ipv6_add_addr+0x411/0x2000
[ 3114.421982][   T73]      inet6_addr_add+0x30e/0xa40
[ 3114.421982][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3114.421982][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3114.421982][   T73]      netlink_rcv_skb+0x130/0x360
[ 3114.421982][   T73]      netlink_unicast+0x449/0x710
[ 3114.421982][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3114.421982][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3114.421982][   T73]      ___sys_sendmsg+0xee/0x170
[ 3114.421982][   T73]      __sys_sendmsg+0xcd/0x170
[ 3114.421982][   T73]      do_syscall_64+0xc6/0x1e0
[ 3114.421982][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3114.421982][   T73] 
[ 3114.424010][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3114.424010][   T73]      netdev_get_by_index+0x5e/0x80
[ 3114.424010][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3114.424010][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3114.424010][   T73]      ip6_route_add+0x1c/0x140
[ 3114.424010][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3114.424010][   T73]      addrconf_add_dev+0xe2/0x170
[ 3114.424010][   T73]      inet6_addr_add+0x12f/0xa40
[ 3114.424010][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3114.424010][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3114.424010][   T73]      netlink_rcv_skb+0x130/0x360
[ 3114.424010][   T73]      netlink_unicast+0x449/0x710
[ 3114.424010][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3114.424010][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3114.424010][   T73]      ___sys_sendmsg+0xee/0x170
[ 3114.424010][   T73]      __sys_sendmsg+0xcd/0x170
[ 3114.424010][   T73]      do_syscall_64+0xc6/0x1e0
[ 3114.424010][   T73] 
[ 3114.426007][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3114.426007][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3114.426007][   T73]      ipv6_find_idev+0x102/0x170
[ 3114.426007][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3114.426007][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3114.426007][   T73]      netlink_rcv_skb+0x130/0x360
[ 3114.426007][   T73]      netlink_unicast+0x449/0x710
[ 3114.426007][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3114.426007][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3114.426007][   T73]      ___sys_sendmsg+0xee/0x170
[ 3114.426007][   T73]      __sys_sendmsg+0xcd/0x170
[ 3114.426007][   T73]      do_syscall_64+0xc6/0x1e0
[ 3114.426007][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3114.426007][   T73] 
[ 3114.427569][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3114.427569][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3114.427569][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3114.427569][   T73]      ipv6_find_idev+0x102/0x170
[ 3114.427569][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3114.427569][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3114.427569][   T73]      netlink_rcv_skb+0x130/0x360
[ 3114.427569][   T73]      netlink_unicast+0x449/0x710
[ 3114.427569][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3114.427569][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3114.427569][   T73]      ___sys_sendmsg+0xee/0x170
[ 3114.427569][   T73]      __sys_sendmsg+0xcd/0x170
[ 3114.427569][   T73]      do_syscall_64+0xc6/0x1e0
[ 3114.427569][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3114.427569][   T73] 
[ 3114.429305][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3114.429601][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3114.429601][   T73]      netdev_get_by_index+0x5e/0x80
[ 3114.429601][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3114.429601][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3114.429601][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3114.429601][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3114.429601][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3114.429601][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3114.429601][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3114.429601][   T73]      addrconf_dad_begin+0x310/0x670
[ 3114.429601][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3114.429601][   T73]      process_one_work+0x84d/0x18a0
[ 3114.429601][   T73]      worker_thread+0x587/0xd30
[ 3114.429601][   T73]      kthread+0x28a/0x350
[ 3114.429601][   T73]      ret_from_fork+0x31/0x70
[ 3114.429601][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3114.429601][   T73] 
[ 3114.431549][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3114.431549][   T73]      netdev_get_by_index+0x5e/0x80
[ 3114.431549][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3114.431549][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3114.431549][   T73]      ip6_route_add+0x1c/0x140
[ 3114.431549][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3114.431549][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3114.431549][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3114.431549][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3114.431549][   T73]      netlink_rcv_skb+0x130/0x360
[ 3114.431549][   T73]      netlink_unicast+0x449/0x710
[ 3114.431549][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3114.431549][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3114.431549][   T73]      ___sys_sendmsg+0xee/0x170
[ 3114.431549][   T73]      __sys_sendmsg+0xcd/0x170
[ 3114.431549][   T73]      do_syscall_64+0xc6/0x1e0
[ 3114.431549][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3114.431549][   T73] 
[ 3114.433581][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3114.433581][   T73]      netdev_get_by_index+0x5e/0x80
[ 3114.433581][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3114.433581][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3114.433581][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3114.433581][   T73]      ipv6_add_addr+0x411/0x2000
[ 3114.433581][   T73]      inet6_addr_add+0x30e/0xa40
[ 3114.433581][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3114.433581][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3114.433581][   T73]      netlink_rcv_skb+0x130/0x360
[ 3114.433581][   T73]      netlink_unicast+0x449/0x710
[ 3114.433581][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3114.433581][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3114.433581][   T73]      ___sys_sendmsg+0xee/0x170
[ 3114.433581][   T73]      __sys_sendmsg+0xcd/0x170
[ 3114.433581][   T73]      do_syscall_64+0xc6/0x1e0
[ 3114.433581][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3114.433581][   T73] 
[ 3114.435595][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3114.435595][   T73]      netdev_get_by_index+0x5e/0x80
[ 3114.435595][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3114.435595][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3114.435595][   T73]      ip6_route_add+0x1c/0x140
[ 3114.435595][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3114.435595][   T73]      addrconf_add_dev+0xe2/0x170
[ 3114.435595][   T73]      inet6_addr_add+0x12f/0xa40
[ 3114.435595][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3114.435595][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3114.435595][   T73]      netlink_rcv_skb+0x130/0x360
[ 3114.435595][   T73]      netlink_unicast+0x449/0x710
[ 3114.435595][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3114.435595][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3114.435595][   T73]      ___sys_sendmsg+0xee/0x170
[ 3114.435595][   T73]      __sys_sendmsg+0xcd/0x170
[ 3114.435595][   T73]      do_syscall_64+0xc6/0x1e0
[ 3114.435595][   T73] 
[ 3114.437577][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3114.437577][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3114.437577][   T73]      ipv6_find_idev+0x102/0x170
[ 3114.437577][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3114.437577][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3114.437577][   T73]      netlink_rcv_skb+0x130/0x360
[ 3114.437577][   T73]      netlink_unicast+0x449/0x710
[ 3114.437577][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3114.437577][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3114.437577][   T73]      ___sys_sendmsg+0xee/0x170
[ 3114.437577][   T73]      __sys_sendmsg+0xcd/0x170
[ 3114.437577][   T73]      do_syscall_64+0xc6/0x1e0
[ 3114.437577][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3114.437577][   T73] 
[ 3114.439130][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3114.439130][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3114.439130][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3114.439130][   T73]      ipv6_find_idev+0x102/0x170
[ 3114.439130][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3114.439130][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3114.439130][   T73]      netlink_rcv_skb+0x130/0x360
[ 3114.439130][   T73]      netlink_unicast+0x449/0x710
[ 3114.439130][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3114.439130][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3114.439130][   T73]      ___sys_sendmsg+0xee/0x170
[ 3114.439130][   T73]      __sys_sendmsg+0xcd/0x170
[ 3114.439130][   T73]      do_syscall_64+0xc6/0x1e0
[ 3114.439130][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3114.439130][   T73] 
[ 3114.440857][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3114.441138][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3114.441138][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3114.441138][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3114.441138][   T73]      fib6_nh_init+0xa22/0x1580
[ 3114.441138][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3114.441138][   T73]      ip6_route_add+0x1c/0x140
[ 3114.441138][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3114.441138][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3114.441138][   T73]      netlink_rcv_skb+0x130/0x360
[ 3114.441138][   T73]      netlink_unicast+0x449/0x710
[ 3114.441138][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3114.441138][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3114.441138][   T73]      ___sys_sendmsg+0xee/0x170
[ 3114.441138][   T73]      __sys_sendmsg+0xcd/0x170
[ 3114.441138][   T73]      do_syscall_64+0xc6/0x1e0
[ 3114.441138][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3114.441138][   T73] 
[ 3114.443255][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3114.443255][   T73]      dst_init+0x84/0x4a0
[ 3114.443255][   T73]      dst_alloc+0x97/0x150
[ 3114.443255][   T73]      ip6_dst_alloc+0x23/0x90
[ 3114.443255][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3114.443255][   T73]      ip6_pol_route+0x56f/0x840
[ 3114.443255][   T73]      fib6_rule_lookup+0x456/0x630
[ 3114.443255][   T73]      ip6_route_input+0x59c/0xa50
[ 3114.443255][   T73]      ipv6_rcv+0x397/0x810
[ 3114.443255][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3114.443255][   T73]      process_backlog+0x101/0x620
[ 3114.443255][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3114.443255][   T73]      net_rx_action+0x495/0xbe0
[ 3114.443255][   T73]      __do_softirq+0x1b5/0x7f6
[ 3114.443255][   T73] 
[ 3114.445161][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3114.445161][   T73]      netdev_get_by_index+0x5e/0x80
[ 3114.445161][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3114.445161][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3114.445161][   T73]      ip6_route_add+0x1c/0x140
[ 3114.445161][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3114.445161][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3114.445161][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3114.445161][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3114.445161][   T73]      netlink_rcv_skb+0x130/0x360
[ 3114.445161][   T73]      netlink_unicast+0x449/0x710
[ 3114.445161][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3114.445161][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3114.445161][   T73]      ___sys_sendmsg+0xee/0x170
[ 3114.445161][   T73]      __sys_sendmsg+0xcd/0x170
[ 3114.445161][   T73]      do_syscall_64+0xc6/0x1e0
[ 3114.445161][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3114.445161][   T73] 
[ 3114.447429][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3114.447429][   T73]      netdev_get_by_index+0x5e/0x80
[ 3114.447429][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3114.447429][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3114.447429][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3114.447429][   T73]      ipv6_add_addr+0x411/0x2000
[ 3114.447429][   T73]      inet6_addr_add+0x30e/0xa40
[ 3114.447429][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3114.447429][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3114.447429][   T73]      netlink_rcv_skb+0x130/0x360
[ 3114.447429][   T73]      netlink_unicast+0x449/0x710
[ 3114.447429][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3114.447429][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3114.447429][   T73]      ___sys_sendmsg+0xee/0x170
[ 3114.447429][   T73]      __sys_sendmsg+0xcd/0x170
[ 3114.447429][   T73]      do_syscall_64+0xc6/0x1e0
[ 3114.447429][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3114.447429][   T73] 
[ 3114.449699][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3114.449699][   T73]      netdev_get_by_index+0x5e/0x80
[ 3114.449699][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3114.449699][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3114.449699][   T73]      ip6_route_add+0x1c/0x140
[ 3114.449699][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3114.449699][   T73]      addrconf_add_dev+0xe2/0x170
[ 3114.449699][   T73]      inet6_addr_add+0x12f/0xa40
[ 3114.449699][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3114.449699][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3114.449699][   T73]      netlink_rcv_skb+0x130/0x360
[ 3114.449699][   T73]      netlink_unicast+0x449/0x710
[ 3114.449699][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3114.449699][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3114.449699][   T73]      ___sys_sendmsg+0xee/0x170
[ 3114.449699][   T73]      __sys_sendmsg+0xcd/0x170
[ 3114.449699][   T73]      do_syscall_64+0xc6/0x1e0
[ 3114.449699][   T73] 
[ 3114.451874][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3114.451874][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3114.451874][   T73]      ipv6_find_idev+0x102/0x170
[ 3114.451874][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3114.451874][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3114.451874][   T73]      netlink_rcv_skb+0x130/0x360
[ 3114.451874][   T73]      netlink_unicast+0x449/0x710
[ 3114.451874][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3114.451874][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3114.451874][   T73]      ___sys_sendmsg+0xee/0x170
[ 3114.451874][   T73]      __sys_sendmsg+0xcd/0x170
[ 3114.451874][   T73]      do_syscall_64+0xc6/0x1e0
[ 3114.451874][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3114.451874][   T73] 
[ 3114.453702][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3114.453702][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3114.453702][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3114.453702][   T73]      ipv6_find_idev+0x102/0x170
[ 3114.453702][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3114.453702][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3114.453702][   T73]      netlink_rcv_skb+0x130/0x360
[ 3114.453702][   T73]      netlink_unicast+0x449/0x710
[ 3114.453702][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3114.453702][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3114.453702][   T73]      ___sys_sendmsg+0xee/0x170
[ 3114.453702][   T73]      __sys_sendmsg+0xcd/0x170
[ 3114.453702][   T73]      do_syscall_64+0xc6/0x1e0
[ 3114.453702][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3114.453702][   T73] 
[ 3114.455655][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3114.455936][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3114.455936][   T73]      netdev_get_by_index+0x5e/0x80
[ 3114.455936][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3114.455936][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3114.455936][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3114.455936][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3114.455936][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3114.455936][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3114.455936][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3114.455936][   T73]      addrconf_dad_begin+0x310/0x670
[ 3114.455936][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3114.455936][   T73]      process_one_work+0x84d/0x18a0
[ 3114.455936][   T73]      worker_thread+0x587/0xd30
[ 3114.455936][   T73]      kthread+0x28a/0x350
[ 3114.455936][   T73]      ret_from_fork+0x31/0x70
[ 3114.455936][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3114.455936][   T73] 
[ 3114.458116][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3114.458116][   T73]      netdev_get_by_index+0x5e/0x80
[ 3114.458116][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3114.458116][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3114.458116][   T73]      ip6_route_add+0x1c/0x140
[ 3114.458116][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3114.458116][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3114.458116][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3114.458116][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3114.458116][   T73]      netlink_rcv_skb+0x130/0x360
[ 3114.458116][   T73]      netlink_unicast+0x449/0x710
[ 3114.458116][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3114.458116][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3114.458116][   T73]      ___sys_sendmsg+0xee/0x170
[ 3114.458116][   T73]      __sys_sendmsg+0xcd/0x170
[ 3114.458116][   T73]      do_syscall_64+0xc6/0x1e0
[ 3114.458116][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3114.458116][   T73] 
[ 3114.460408][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3114.460408][   T73]      netdev_get_by_index+0x5e/0x80
[ 3114.460408][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3114.460408][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3114.460408][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3114.460408][   T73]      ipv6_add_addr+0x411/0x2000
[ 3114.460408][   T73]      inet6_addr_add+0x30e/0xa40
[ 3114.460408][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3114.460408][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3114.460408][   T73]      netlink_rcv_skb+0x130/0x360
[ 3114.460408][   T73]      netlink_unicast+0x449/0x710
[ 3114.460408][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3114.460408][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3114.460408][   T73]      ___sys_sendmsg+0xee/0x170
[ 3114.460408][   T73]      __sys_sendmsg+0xcd/0x170
[ 3114.460408][   T73]      do_syscall_64+0xc6/0x1e0
[ 3114.460408][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3114.460408][   T73] 
[ 3114.462611][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3114.462611][   T73]      netdev_get_by_index+0x5e/0x80
[ 3114.462611][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3114.462611][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3114.462611][   T73]      ip6_route_add+0x1c/0x140
[ 3114.462611][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3114.462611][   T73]      addrconf_add_dev+0xe2/0x170
[ 3114.462611][   T73]      inet6_addr_add+0x12f/0xa40
[ 3114.462611][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3114.462611][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3114.462611][   T73]      netlink_rcv_skb+0x130/0x360
[ 3114.462611][   T73]      netlink_unicast+0x449/0x710
[ 3114.462611][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3114.462611][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3114.462611][   T73]      ___sys_sendmsg+0xee/0x170
[ 3114.462611][   T73]      __sys_sendmsg+0xcd/0x170
[ 3114.462611][   T73]      do_syscall_64+0xc6/0x1e0
[ 3114.462611][   T73] 
[ 3114.464913][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3114.464913][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3114.464913][   T73]      ipv6_find_idev+0x102/0x170
[ 3114.464913][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3114.464913][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3114.464913][   T73]      netlink_rcv_skb+0x130/0x360
[ 3114.464913][   T73]      netlink_unicast+0x449/0x710
[ 3114.464913][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3114.464913][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3114.464913][   T73]      ___sys_sendmsg+0xee/0x170
[ 3114.464913][   T73]      __sys_sendmsg+0xcd/0x170
[ 3114.464913][   T73]      do_syscall_64+0xc6/0x1e0
[ 3114.464913][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3114.464913][   T73] 
[ 3114.466657][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3114.466657][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3114.466657][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3114.466657][   T73]      ipv6_find_idev+0x102/0x170
[ 3114.466657][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3114.466657][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3114.466657][   T73]      netlink_rcv_skb+0x130/0x360
[ 3114.466657][   T73]      netlink_unicast+0x449/0x710
[ 3114.466657][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3114.466657][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3114.466657][   T73]      ___sys_sendmsg+0xee/0x170
[ 3114.466657][   T73]      __sys_sendmsg+0xcd/0x170
[ 3114.466657][   T73]      do_syscall_64+0xc6/0x1e0
[ 3114.466657][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3114.466657][   T73] 
[ 3124.711804][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3124.712306][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3124.712306][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3124.712306][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3124.712306][   T73]      fib6_nh_init+0xa22/0x1580
[ 3124.712306][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3124.712306][   T73]      ip6_route_add+0x1c/0x140
[ 3124.712306][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3124.712306][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3124.712306][   T73]      netlink_rcv_skb+0x130/0x360
[ 3124.712306][   T73]      netlink_unicast+0x449/0x710
[ 3124.712306][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3124.712306][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3124.712306][   T73]      ___sys_sendmsg+0xee/0x170
[ 3124.712306][   T73]      __sys_sendmsg+0xcd/0x170
[ 3124.712306][   T73]      do_syscall_64+0xc6/0x1e0
[ 3124.712306][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3124.712306][   T73] 
[ 3124.714233][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3124.714233][   T73]      dst_init+0x84/0x4a0
[ 3124.714233][   T73]      dst_alloc+0x97/0x150
[ 3124.714233][   T73]      ip6_dst_alloc+0x23/0x90
[ 3124.714233][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3124.714233][   T73]      ip6_pol_route+0x56f/0x840
[ 3124.714233][   T73]      fib6_rule_lookup+0x456/0x630
[ 3124.714233][   T73]      ip6_route_input+0x59c/0xa50
[ 3124.714233][   T73]      ipv6_rcv+0x397/0x810
[ 3124.714233][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3124.714233][   T73]      process_backlog+0x101/0x620
[ 3124.714233][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3124.714233][   T73]      net_rx_action+0x495/0xbe0
[ 3124.714233][   T73]      __do_softirq+0x1b5/0x7f6
[ 3124.714233][   T73] 
[ 3124.715918][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3124.715918][   T73]      netdev_get_by_index+0x5e/0x80
[ 3124.715918][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3124.715918][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3124.715918][   T73]      ip6_route_add+0x1c/0x140
[ 3124.715918][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3124.715918][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3124.715918][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3124.715918][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3124.715918][   T73]      netlink_rcv_skb+0x130/0x360
[ 3124.715918][   T73]      netlink_unicast+0x449/0x710
[ 3124.715918][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3124.715918][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3124.715918][   T73]      ___sys_sendmsg+0xee/0x170
[ 3124.715918][   T73]      __sys_sendmsg+0xcd/0x170
[ 3124.715918][   T73]      do_syscall_64+0xc6/0x1e0
[ 3124.715918][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3124.715918][   T73] 
[ 3124.717934][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3124.717934][   T73]      netdev_get_by_index+0x5e/0x80
[ 3124.717934][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3124.717934][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3124.717934][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3124.717934][   T73]      ipv6_add_addr+0x411/0x2000
[ 3124.717934][   T73]      inet6_addr_add+0x30e/0xa40
[ 3124.717934][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3124.717934][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3124.717934][   T73]      netlink_rcv_skb+0x130/0x360
[ 3124.717934][   T73]      netlink_unicast+0x449/0x710
[ 3124.717934][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3124.717934][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3124.717934][   T73]      ___sys_sendmsg+0xee/0x170
[ 3124.717934][   T73]      __sys_sendmsg+0xcd/0x170
[ 3124.717934][   T73]      do_syscall_64+0xc6/0x1e0
[ 3124.717934][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3124.717934][   T73] 
[ 3124.719955][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3124.719955][   T73]      netdev_get_by_index+0x5e/0x80
[ 3124.719955][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3124.719955][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3124.719955][   T73]      ip6_route_add+0x1c/0x140
[ 3124.719955][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3124.719955][   T73]      addrconf_add_dev+0xe2/0x170
[ 3124.719955][   T73]      inet6_addr_add+0x12f/0xa40
[ 3124.719955][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3124.719955][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3124.719955][   T73]      netlink_rcv_skb+0x130/0x360
[ 3124.719955][   T73]      netlink_unicast+0x449/0x710
[ 3124.719955][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3124.719955][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3124.719955][   T73]      ___sys_sendmsg+0xee/0x170
[ 3124.719955][   T73]      __sys_sendmsg+0xcd/0x170
[ 3124.719955][   T73]      do_syscall_64+0xc6/0x1e0
[ 3124.719955][   T73] 
[ 3124.721940][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3124.721940][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3124.721940][   T73]      ipv6_find_idev+0x102/0x170
[ 3124.721940][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3124.721940][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3124.721940][   T73]      netlink_rcv_skb+0x130/0x360
[ 3124.721940][   T73]      netlink_unicast+0x449/0x710
[ 3124.721940][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3124.721940][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3124.721940][   T73]      ___sys_sendmsg+0xee/0x170
[ 3124.721940][   T73]      __sys_sendmsg+0xcd/0x170
[ 3124.721940][   T73]      do_syscall_64+0xc6/0x1e0
[ 3124.721940][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3124.721940][   T73] 
[ 3124.723491][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3124.723491][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3124.723491][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3124.723491][   T73]      ipv6_find_idev+0x102/0x170
[ 3124.723491][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3124.723491][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3124.723491][   T73]      netlink_rcv_skb+0x130/0x360
[ 3124.723491][   T73]      netlink_unicast+0x449/0x710
[ 3124.723491][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3124.723491][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3124.723491][   T73]      ___sys_sendmsg+0xee/0x170
[ 3124.723491][   T73]      __sys_sendmsg+0xcd/0x170
[ 3124.723491][   T73]      do_syscall_64+0xc6/0x1e0
[ 3124.723491][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3124.723491][   T73] 
[ 3124.725215][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3124.725504][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3124.725504][   T73]      netdev_get_by_index+0x5e/0x80
[ 3124.725504][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3124.725504][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3124.725504][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3124.725504][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3124.725504][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3124.725504][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3124.725504][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3124.725504][   T73]      addrconf_dad_begin+0x310/0x670
[ 3124.725504][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3124.725504][   T73]      process_one_work+0x84d/0x18a0
[ 3124.725504][   T73]      worker_thread+0x587/0xd30
[ 3124.725504][   T73]      kthread+0x28a/0x350
[ 3124.725504][   T73]      ret_from_fork+0x31/0x70
[ 3124.725504][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3124.725504][   T73] 
[ 3124.727434][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3124.727434][   T73]      netdev_get_by_index+0x5e/0x80
[ 3124.727434][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3124.727434][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3124.727434][   T73]      ip6_route_add+0x1c/0x140
[ 3124.727434][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3124.727434][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3124.727434][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3124.727434][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3124.727434][   T73]      netlink_rcv_skb+0x130/0x360
[ 3124.727434][   T73]      netlink_unicast+0x449/0x710
[ 3124.727434][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3124.727434][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3124.727434][   T73]      ___sys_sendmsg+0xee/0x170
[ 3124.727434][   T73]      __sys_sendmsg+0xcd/0x170
[ 3124.727434][   T73]      do_syscall_64+0xc6/0x1e0
[ 3124.727434][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3124.727434][   T73] 
[ 3124.729444][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3124.729444][   T73]      netdev_get_by_index+0x5e/0x80
[ 3124.729444][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3124.729444][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3124.729444][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3124.729444][   T73]      ipv6_add_addr+0x411/0x2000
[ 3124.729444][   T73]      inet6_addr_add+0x30e/0xa40
[ 3124.729444][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3124.729444][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3124.729444][   T73]      netlink_rcv_skb+0x130/0x360
[ 3124.729444][   T73]      netlink_unicast+0x449/0x710
[ 3124.729444][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3124.729444][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3124.729444][   T73]      ___sys_sendmsg+0xee/0x170
[ 3124.729444][   T73]      __sys_sendmsg+0xcd/0x170
[ 3124.729444][   T73]      do_syscall_64+0xc6/0x1e0
[ 3124.729444][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3124.729444][   T73] 
[ 3124.731466][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3124.731466][   T73]      netdev_get_by_index+0x5e/0x80
[ 3124.731466][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3124.731466][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3124.731466][   T73]      ip6_route_add+0x1c/0x140
[ 3124.731466][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3124.731466][   T73]      addrconf_add_dev+0xe2/0x170
[ 3124.731466][   T73]      inet6_addr_add+0x12f/0xa40
[ 3124.731466][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3124.731466][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3124.731466][   T73]      netlink_rcv_skb+0x130/0x360
[ 3124.731466][   T73]      netlink_unicast+0x449/0x710
[ 3124.731466][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3124.731466][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3124.731466][   T73]      ___sys_sendmsg+0xee/0x170
[ 3124.731466][   T73]      __sys_sendmsg+0xcd/0x170
[ 3124.731466][   T73]      do_syscall_64+0xc6/0x1e0
[ 3124.731466][   T73] 
[ 3124.733442][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3124.733442][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3124.733442][   T73]      ipv6_find_idev+0x102/0x170
[ 3124.733442][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3124.733442][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3124.733442][   T73]      netlink_rcv_skb+0x130/0x360
[ 3124.733442][   T73]      netlink_unicast+0x449/0x710
[ 3124.733442][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3124.733442][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3124.733442][   T73]      ___sys_sendmsg+0xee/0x170
[ 3124.733442][   T73]      __sys_sendmsg+0xcd/0x170
[ 3124.733442][   T73]      do_syscall_64+0xc6/0x1e0
[ 3124.733442][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3124.733442][   T73] 
[ 3124.734999][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3124.734999][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3124.734999][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3124.734999][   T73]      ipv6_find_idev+0x102/0x170
[ 3124.734999][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3124.734999][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3124.734999][   T73]      netlink_rcv_skb+0x130/0x360
[ 3124.734999][   T73]      netlink_unicast+0x449/0x710
[ 3124.734999][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3124.734999][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3124.734999][   T73]      ___sys_sendmsg+0xee/0x170
[ 3124.734999][   T73]      __sys_sendmsg+0xcd/0x170
[ 3124.734999][   T73]      do_syscall_64+0xc6/0x1e0
[ 3124.734999][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3124.734999][   T73] 
[ 3124.736699][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3124.736972][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3124.736972][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3124.736972][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3124.736972][   T73]      fib6_nh_init+0xa22/0x1580
[ 3124.736972][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3124.736972][   T73]      ip6_route_add+0x1c/0x140
[ 3124.736972][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3124.736972][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3124.736972][   T73]      netlink_rcv_skb+0x130/0x360
[ 3124.736972][   T73]      netlink_unicast+0x449/0x710
[ 3124.736972][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3124.736972][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3124.736972][   T73]      ___sys_sendmsg+0xee/0x170
[ 3124.736972][   T73]      __sys_sendmsg+0xcd/0x170
[ 3124.736972][   T73]      do_syscall_64+0xc6/0x1e0
[ 3124.736972][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3124.736972][   T73] 
[ 3124.739052][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3124.739052][   T73]      dst_init+0x84/0x4a0
[ 3124.739052][   T73]      dst_alloc+0x97/0x150
[ 3124.739052][   T73]      ip6_dst_alloc+0x23/0x90
[ 3124.739052][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3124.739052][   T73]      ip6_pol_route+0x56f/0x840
[ 3124.739052][   T73]      fib6_rule_lookup+0x456/0x630
[ 3124.739052][   T73]      ip6_route_input+0x59c/0xa50
[ 3124.739052][   T73]      ipv6_rcv+0x397/0x810
[ 3124.739052][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3124.739052][   T73]      process_backlog+0x101/0x620
[ 3124.739052][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3124.739052][   T73]      net_rx_action+0x495/0xbe0
[ 3124.739052][   T73]      __do_softirq+0x1b5/0x7f6
[ 3124.739052][   T73] 
[ 3124.740887][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3124.740887][   T73]      netdev_get_by_index+0x5e/0x80
[ 3124.740887][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3124.740887][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3124.740887][   T73]      ip6_route_add+0x1c/0x140
[ 3124.740887][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3124.740887][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3124.740887][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3124.740887][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3124.740887][   T73]      netlink_rcv_skb+0x130/0x360
[ 3124.740887][   T73]      netlink_unicast+0x449/0x710
[ 3124.740887][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3124.740887][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3124.740887][   T73]      ___sys_sendmsg+0xee/0x170
[ 3124.740887][   T73]      __sys_sendmsg+0xcd/0x170
[ 3124.740887][   T73]      do_syscall_64+0xc6/0x1e0
[ 3124.740887][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3124.740887][   T73] 
[ 3124.743142][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3124.743142][   T73]      netdev_get_by_index+0x5e/0x80
[ 3124.743142][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3124.743142][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3124.743142][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3124.743142][   T73]      ipv6_add_addr+0x411/0x2000
[ 3124.743142][   T73]      inet6_addr_add+0x30e/0xa40
[ 3124.743142][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3124.743142][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3124.743142][   T73]      netlink_rcv_skb+0x130/0x360
[ 3124.743142][   T73]      netlink_unicast+0x449/0x710
[ 3124.743142][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3124.743142][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3124.743142][   T73]      ___sys_sendmsg+0xee/0x170
[ 3124.743142][   T73]      __sys_sendmsg+0xcd/0x170
[ 3124.743142][   T73]      do_syscall_64+0xc6/0x1e0
[ 3124.743142][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3124.743142][   T73] 
[ 3124.745472][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3124.745472][   T73]      netdev_get_by_index+0x5e/0x80
[ 3124.745472][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3124.745472][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3124.745472][   T73]      ip6_route_add+0x1c/0x140
[ 3124.745472][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3124.745472][   T73]      addrconf_add_dev+0xe2/0x170
[ 3124.745472][   T73]      inet6_addr_add+0x12f/0xa40
[ 3124.745472][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3124.745472][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3124.745472][   T73]      netlink_rcv_skb+0x130/0x360
[ 3124.745472][   T73]      netlink_unicast+0x449/0x710
[ 3124.745472][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3124.745472][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3124.745472][   T73]      ___sys_sendmsg+0xee/0x170
[ 3124.745472][   T73]      __sys_sendmsg+0xcd/0x170
[ 3124.745472][   T73]      do_syscall_64+0xc6/0x1e0
[ 3124.745472][   T73] 
[ 3124.747624][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3124.747624][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3124.747624][   T73]      ipv6_find_idev+0x102/0x170
[ 3124.747624][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3124.747624][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3124.747624][   T73]      netlink_rcv_skb+0x130/0x360
[ 3124.747624][   T73]      netlink_unicast+0x449/0x710
[ 3124.747624][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3124.747624][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3124.747624][   T73]      ___sys_sendmsg+0xee/0x170
[ 3124.747624][   T73]      __sys_sendmsg+0xcd/0x170
[ 3124.747624][   T73]      do_syscall_64+0xc6/0x1e0
[ 3124.747624][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3124.747624][   T73] 
[ 3124.749376][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3124.749376][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3124.749376][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3124.749376][   T73]      ipv6_find_idev+0x102/0x170
[ 3124.749376][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3124.749376][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3124.749376][   T73]      netlink_rcv_skb+0x130/0x360
[ 3124.749376][   T73]      netlink_unicast+0x449/0x710
[ 3124.749376][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3124.749376][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3124.749376][   T73]      ___sys_sendmsg+0xee/0x170
[ 3124.749376][   T73]      __sys_sendmsg+0xcd/0x170
[ 3124.749376][   T73]      do_syscall_64+0xc6/0x1e0
[ 3124.749376][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3124.749376][   T73] 
[ 3124.751324][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3124.751605][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3124.751605][   T73]      netdev_get_by_index+0x5e/0x80
[ 3124.751605][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3124.751605][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3124.751605][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3124.751605][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3124.751605][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3124.751605][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3124.751605][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3124.751605][   T73]      addrconf_dad_begin+0x310/0x670
[ 3124.751605][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3124.751605][   T73]      process_one_work+0x84d/0x18a0
[ 3124.751605][   T73]      worker_thread+0x587/0xd30
[ 3124.751605][   T73]      kthread+0x28a/0x350
[ 3124.751605][   T73]      ret_from_fork+0x31/0x70
[ 3124.751605][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3124.751605][   T73] 
[ 3124.753768][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3124.753768][   T73]      netdev_get_by_index+0x5e/0x80
[ 3124.753768][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3124.753768][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3124.753768][   T73]      ip6_route_add+0x1c/0x140
[ 3124.753768][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3124.753768][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3124.753768][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3124.753768][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3124.753768][   T73]      netlink_rcv_skb+0x130/0x360
[ 3124.753768][   T73]      netlink_unicast+0x449/0x710
[ 3124.753768][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3124.753768][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3124.753768][   T73]      ___sys_sendmsg+0xee/0x170
[ 3124.753768][   T73]      __sys_sendmsg+0xcd/0x170
[ 3124.753768][   T73]      do_syscall_64+0xc6/0x1e0
[ 3124.753768][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3124.753768][   T73] 
[ 3124.756078][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3124.756078][   T73]      netdev_get_by_index+0x5e/0x80
[ 3124.756078][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3124.756078][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3124.756078][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3124.756078][   T73]      ipv6_add_addr+0x411/0x2000
[ 3124.756078][   T73]      inet6_addr_add+0x30e/0xa40
[ 3124.756078][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3124.756078][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3124.756078][   T73]      netlink_rcv_skb+0x130/0x360
[ 3124.756078][   T73]      netlink_unicast+0x449/0x710
[ 3124.756078][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3124.756078][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3124.756078][   T73]      ___sys_sendmsg+0xee/0x170
[ 3124.756078][   T73]      __sys_sendmsg+0xcd/0x170
[ 3124.756078][   T73]      do_syscall_64+0xc6/0x1e0
[ 3124.756078][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3124.756078][   T73] 
[ 3124.758268][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3124.758268][   T73]      netdev_get_by_index+0x5e/0x80
[ 3124.758268][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3124.758268][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3124.758268][   T73]      ip6_route_add+0x1c/0x140
[ 3124.758268][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3124.758268][   T73]      addrconf_add_dev+0xe2/0x170
[ 3124.758268][   T73]      inet6_addr_add+0x12f/0xa40
[ 3124.758268][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3124.758268][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3124.758268][   T73]      netlink_rcv_skb+0x130/0x360
[ 3124.758268][   T73]      netlink_unicast+0x449/0x710
[ 3124.758268][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3124.758268][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3124.758268][   T73]      ___sys_sendmsg+0xee/0x170
[ 3124.758268][   T73]      __sys_sendmsg+0xcd/0x170
[ 3124.758268][   T73]      do_syscall_64+0xc6/0x1e0
[ 3124.758268][   T73] 
[ 3124.760494][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3124.760494][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3124.760494][   T73]      ipv6_find_idev+0x102/0x170
[ 3124.760494][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3124.760494][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3124.760494][   T73]      netlink_rcv_skb+0x130/0x360
[ 3124.760494][   T73]      netlink_unicast+0x449/0x710
[ 3124.760494][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3124.760494][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3124.760494][   T73]      ___sys_sendmsg+0xee/0x170
[ 3124.760494][   T73]      __sys_sendmsg+0xcd/0x170
[ 3124.760494][   T73]      do_syscall_64+0xc6/0x1e0
[ 3124.760494][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3124.760494][   T73] 
[ 3124.762234][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3124.762234][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3124.762234][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3124.762234][   T73]      ipv6_find_idev+0x102/0x170
[ 3124.762234][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3124.762234][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3124.762234][   T73]      netlink_rcv_skb+0x130/0x360
[ 3124.762234][   T73]      netlink_unicast+0x449/0x710
[ 3124.762234][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3124.762234][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3124.762234][   T73]      ___sys_sendmsg+0xee/0x170
[ 3124.762234][   T73]      __sys_sendmsg+0xcd/0x170
[ 3124.762234][   T73]      do_syscall_64+0xc6/0x1e0
[ 3124.762234][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3124.762234][   T73] 
[ 3134.911835][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3134.912361][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3134.912361][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3134.912361][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3134.912361][   T73]      fib6_nh_init+0xa22/0x1580
[ 3134.912361][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3134.912361][   T73]      ip6_route_add+0x1c/0x140
[ 3134.912361][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3134.912361][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3134.912361][   T73]      netlink_rcv_skb+0x130/0x360
[ 3134.912361][   T73]      netlink_unicast+0x449/0x710
[ 3134.912361][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3134.912361][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3134.912361][   T73]      ___sys_sendmsg+0xee/0x170
[ 3134.912361][   T73]      __sys_sendmsg+0xcd/0x170
[ 3134.912361][   T73]      do_syscall_64+0xc6/0x1e0
[ 3134.912361][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3134.912361][   T73] 
[ 3134.914396][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3134.914396][   T73]      dst_init+0x84/0x4a0
[ 3134.914396][   T73]      dst_alloc+0x97/0x150
[ 3134.914396][   T73]      ip6_dst_alloc+0x23/0x90
[ 3134.914396][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3134.914396][   T73]      ip6_pol_route+0x56f/0x840
[ 3134.914396][   T73]      fib6_rule_lookup+0x456/0x630
[ 3134.914396][   T73]      ip6_route_input+0x59c/0xa50
[ 3134.914396][   T73]      ipv6_rcv+0x397/0x810
[ 3134.914396][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3134.914396][   T73]      process_backlog+0x101/0x620
[ 3134.914396][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3134.914396][   T73]      net_rx_action+0x495/0xbe0
[ 3134.914396][   T73]      __do_softirq+0x1b5/0x7f6
[ 3134.914396][   T73] 
[ 3134.916063][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3134.916063][   T73]      netdev_get_by_index+0x5e/0x80
[ 3134.916063][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3134.916063][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3134.916063][   T73]      ip6_route_add+0x1c/0x140
[ 3134.916063][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3134.916063][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3134.916063][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3134.916063][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3134.916063][   T73]      netlink_rcv_skb+0x130/0x360
[ 3134.916063][   T73]      netlink_unicast+0x449/0x710
[ 3134.916063][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3134.916063][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3134.916063][   T73]      ___sys_sendmsg+0xee/0x170
[ 3134.916063][   T73]      __sys_sendmsg+0xcd/0x170
[ 3134.916063][   T73]      do_syscall_64+0xc6/0x1e0
[ 3134.916063][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3134.916063][   T73] 
[ 3134.918085][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3134.918085][   T73]      netdev_get_by_index+0x5e/0x80
[ 3134.918085][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3134.918085][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3134.918085][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3134.918085][   T73]      ipv6_add_addr+0x411/0x2000
[ 3134.918085][   T73]      inet6_addr_add+0x30e/0xa40
[ 3134.918085][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3134.918085][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3134.918085][   T73]      netlink_rcv_skb+0x130/0x360
[ 3134.918085][   T73]      netlink_unicast+0x449/0x710
[ 3134.918085][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3134.918085][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3134.918085][   T73]      ___sys_sendmsg+0xee/0x170
[ 3134.918085][   T73]      __sys_sendmsg+0xcd/0x170
[ 3134.918085][   T73]      do_syscall_64+0xc6/0x1e0
[ 3134.918085][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3134.918085][   T73] 
[ 3134.920123][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3134.920123][   T73]      netdev_get_by_index+0x5e/0x80
[ 3134.920123][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3134.920123][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3134.920123][   T73]      ip6_route_add+0x1c/0x140
[ 3134.920123][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3134.920123][   T73]      addrconf_add_dev+0xe2/0x170
[ 3134.920123][   T73]      inet6_addr_add+0x12f/0xa40
[ 3134.920123][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3134.920123][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3134.920123][   T73]      netlink_rcv_skb+0x130/0x360
[ 3134.920123][   T73]      netlink_unicast+0x449/0x710
[ 3134.920123][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3134.920123][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3134.920123][   T73]      ___sys_sendmsg+0xee/0x170
[ 3134.920123][   T73]      __sys_sendmsg+0xcd/0x170
[ 3134.920123][   T73]      do_syscall_64+0xc6/0x1e0
[ 3134.920123][   T73] 
[ 3134.922123][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3134.922123][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3134.922123][   T73]      ipv6_find_idev+0x102/0x170
[ 3134.922123][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3134.922123][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3134.922123][   T73]      netlink_rcv_skb+0x130/0x360
[ 3134.922123][   T73]      netlink_unicast+0x449/0x710
[ 3134.922123][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3134.922123][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3134.922123][   T73]      ___sys_sendmsg+0xee/0x170
[ 3134.922123][   T73]      __sys_sendmsg+0xcd/0x170
[ 3134.922123][   T73]      do_syscall_64+0xc6/0x1e0
[ 3134.922123][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3134.922123][   T73] 
[ 3134.923667][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3134.923667][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3134.923667][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3134.923667][   T73]      ipv6_find_idev+0x102/0x170
[ 3134.923667][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3134.923667][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3134.923667][   T73]      netlink_rcv_skb+0x130/0x360
[ 3134.923667][   T73]      netlink_unicast+0x449/0x710
[ 3134.923667][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3134.923667][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3134.923667][   T73]      ___sys_sendmsg+0xee/0x170
[ 3134.923667][   T73]      __sys_sendmsg+0xcd/0x170
[ 3134.923667][   T73]      do_syscall_64+0xc6/0x1e0
[ 3134.923667][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3134.923667][   T73] 
[ 3134.925387][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3134.925675][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3134.925675][   T73]      netdev_get_by_index+0x5e/0x80
[ 3134.925675][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3134.925675][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3134.925675][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3134.925675][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3134.925675][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3134.925675][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3134.925675][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3134.925675][   T73]      addrconf_dad_begin+0x310/0x670
[ 3134.925675][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3134.925675][   T73]      process_one_work+0x84d/0x18a0
[ 3134.925675][   T73]      worker_thread+0x587/0xd30
[ 3134.925675][   T73]      kthread+0x28a/0x350
[ 3134.925675][   T73]      ret_from_fork+0x31/0x70
[ 3134.925675][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3134.925675][   T73] 
[ 3134.927676][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3134.927676][   T73]      netdev_get_by_index+0x5e/0x80
[ 3134.927676][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3134.927676][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3134.927676][   T73]      ip6_route_add+0x1c/0x140
[ 3134.927676][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3134.927676][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3134.927676][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3134.927676][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3134.927676][   T73]      netlink_rcv_skb+0x130/0x360
[ 3134.927676][   T73]      netlink_unicast+0x449/0x710
[ 3134.927676][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3134.927676][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3134.927676][   T73]      ___sys_sendmsg+0xee/0x170
[ 3134.927676][   T73]      __sys_sendmsg+0xcd/0x170
[ 3134.927676][   T73]      do_syscall_64+0xc6/0x1e0
[ 3134.927676][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3134.927676][   T73] 
[ 3134.929864][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3134.929864][   T73]      netdev_get_by_index+0x5e/0x80
[ 3134.929864][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3134.929864][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3134.929864][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3134.929864][   T73]      ipv6_add_addr+0x411/0x2000
[ 3134.929864][   T73]      inet6_addr_add+0x30e/0xa40
[ 3134.929864][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3134.929864][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3134.929864][   T73]      netlink_rcv_skb+0x130/0x360
[ 3134.929864][   T73]      netlink_unicast+0x449/0x710
[ 3134.929864][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3134.929864][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3134.929864][   T73]      ___sys_sendmsg+0xee/0x170
[ 3134.929864][   T73]      __sys_sendmsg+0xcd/0x170
[ 3134.929864][   T73]      do_syscall_64+0xc6/0x1e0
[ 3134.929864][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3134.929864][   T73] 
[ 3134.932074][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3134.932074][   T73]      netdev_get_by_index+0x5e/0x80
[ 3134.932074][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3134.932074][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3134.932074][   T73]      ip6_route_add+0x1c/0x140
[ 3134.932074][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3134.932074][   T73]      addrconf_add_dev+0xe2/0x170
[ 3134.932074][   T73]      inet6_addr_add+0x12f/0xa40
[ 3134.932074][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3134.932074][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3134.932074][   T73]      netlink_rcv_skb+0x130/0x360
[ 3134.932074][   T73]      netlink_unicast+0x449/0x710
[ 3134.932074][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3134.932074][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3134.932074][   T73]      ___sys_sendmsg+0xee/0x170
[ 3134.932074][   T73]      __sys_sendmsg+0xcd/0x170
[ 3134.932074][   T73]      do_syscall_64+0xc6/0x1e0
[ 3134.932074][   T73] 
[ 3134.934234][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3134.934234][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3134.934234][   T73]      ipv6_find_idev+0x102/0x170
[ 3134.934234][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3134.934234][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3134.934234][   T73]      netlink_rcv_skb+0x130/0x360
[ 3134.934234][   T73]      netlink_unicast+0x449/0x710
[ 3134.934234][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3134.934234][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3134.934234][   T73]      ___sys_sendmsg+0xee/0x170
[ 3134.934234][   T73]      __sys_sendmsg+0xcd/0x170
[ 3134.934234][   T73]      do_syscall_64+0xc6/0x1e0
[ 3134.934234][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3134.934234][   T73] 
[ 3134.935934][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3134.935934][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3134.935934][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3134.935934][   T73]      ipv6_find_idev+0x102/0x170
[ 3134.935934][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3134.935934][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3134.935934][   T73]      netlink_rcv_skb+0x130/0x360
[ 3134.935934][   T73]      netlink_unicast+0x449/0x710
[ 3134.935934][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3134.935934][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3134.935934][   T73]      ___sys_sendmsg+0xee/0x170
[ 3134.935934][   T73]      __sys_sendmsg+0xcd/0x170
[ 3134.935934][   T73]      do_syscall_64+0xc6/0x1e0
[ 3134.935934][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3134.935934][   T73] 
[ 3134.937795][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3134.938090][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3134.938090][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3134.938090][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3134.938090][   T73]      fib6_nh_init+0xa22/0x1580
[ 3134.938090][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3134.938090][   T73]      ip6_route_add+0x1c/0x140
[ 3134.938090][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3134.938090][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3134.938090][   T73]      netlink_rcv_skb+0x130/0x360
[ 3134.938090][   T73]      netlink_unicast+0x449/0x710
[ 3134.938090][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3134.938090][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3134.938090][   T73]      ___sys_sendmsg+0xee/0x170
[ 3134.938090][   T73]      __sys_sendmsg+0xcd/0x170
[ 3134.938090][   T73]      do_syscall_64+0xc6/0x1e0
[ 3134.938090][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3134.938090][   T73] 
[ 3134.940398][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3134.940398][   T73]      dst_init+0x84/0x4a0
[ 3134.940398][   T73]      dst_alloc+0x97/0x150
[ 3134.940398][   T73]      ip6_dst_alloc+0x23/0x90
[ 3134.940398][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3134.940398][   T73]      ip6_pol_route+0x56f/0x840
[ 3134.940398][   T73]      fib6_rule_lookup+0x456/0x630
[ 3134.940398][   T73]      ip6_route_input+0x59c/0xa50
[ 3134.940398][   T73]      ipv6_rcv+0x397/0x810
[ 3134.940398][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3134.940398][   T73]      process_backlog+0x101/0x620
[ 3134.940398][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3134.940398][   T73]      net_rx_action+0x495/0xbe0
[ 3134.940398][   T73]      __do_softirq+0x1b5/0x7f6
[ 3134.940398][   T73] 
[ 3134.942439][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3134.942439][   T73]      netdev_get_by_index+0x5e/0x80
[ 3134.942439][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3134.942439][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3134.942439][   T73]      ip6_route_add+0x1c/0x140
[ 3134.942439][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3134.942439][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3134.942439][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3134.942439][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3134.942439][   T73]      netlink_rcv_skb+0x130/0x360
[ 3134.942439][   T73]      netlink_unicast+0x449/0x710
[ 3134.942439][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3134.942439][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3134.942439][   T73]      ___sys_sendmsg+0xee/0x170
[ 3134.942439][   T73]      __sys_sendmsg+0xcd/0x170
[ 3134.942439][   T73]      do_syscall_64+0xc6/0x1e0
[ 3134.942439][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3134.942439][   T73] 
[ 3134.944889][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3134.944889][   T73]      netdev_get_by_index+0x5e/0x80
[ 3134.944889][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3134.944889][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3134.944889][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3134.944889][   T73]      ipv6_add_addr+0x411/0x2000
[ 3134.944889][   T73]      inet6_addr_add+0x30e/0xa40
[ 3134.944889][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3134.944889][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3134.944889][   T73]      netlink_rcv_skb+0x130/0x360
[ 3134.944889][   T73]      netlink_unicast+0x449/0x710
[ 3134.944889][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3134.944889][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3134.944889][   T73]      ___sys_sendmsg+0xee/0x170
[ 3134.944889][   T73]      __sys_sendmsg+0xcd/0x170
[ 3134.944889][   T73]      do_syscall_64+0xc6/0x1e0
[ 3134.944889][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3134.944889][   T73] 
[ 3134.947341][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3134.947341][   T73]      netdev_get_by_index+0x5e/0x80
[ 3134.947341][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3134.947341][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3134.947341][   T73]      ip6_route_add+0x1c/0x140
[ 3134.947341][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3134.947341][   T73]      addrconf_add_dev+0xe2/0x170
[ 3134.947341][   T73]      inet6_addr_add+0x12f/0xa40
[ 3134.947341][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3134.947341][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3134.947341][   T73]      netlink_rcv_skb+0x130/0x360
[ 3134.947341][   T73]      netlink_unicast+0x449/0x710
[ 3134.947341][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3134.947341][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3134.947341][   T73]      ___sys_sendmsg+0xee/0x170
[ 3134.947341][   T73]      __sys_sendmsg+0xcd/0x170
[ 3134.947341][   T73]      do_syscall_64+0xc6/0x1e0
[ 3134.947341][   T73] 
[ 3134.949703][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3134.949703][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3134.949703][   T73]      ipv6_find_idev+0x102/0x170
[ 3134.949703][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3134.949703][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3134.949703][   T73]      netlink_rcv_skb+0x130/0x360
[ 3134.949703][   T73]      netlink_unicast+0x449/0x710
[ 3134.949703][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3134.949703][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3134.949703][   T73]      ___sys_sendmsg+0xee/0x170
[ 3134.949703][   T73]      __sys_sendmsg+0xcd/0x170
[ 3134.949703][   T73]      do_syscall_64+0xc6/0x1e0
[ 3134.949703][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3134.949703][   T73] 
[ 3134.952068][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3134.952068][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3134.952068][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3134.952068][   T73]      ipv6_find_idev+0x102/0x170
[ 3134.952068][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3134.952068][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3134.952068][   T73]      netlink_rcv_skb+0x130/0x360
[ 3134.952068][   T73]      netlink_unicast+0x449/0x710
[ 3134.952068][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3134.952068][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3134.952068][   T73]      ___sys_sendmsg+0xee/0x170
[ 3134.952068][   T73]      __sys_sendmsg+0xcd/0x170
[ 3134.952068][   T73]      do_syscall_64+0xc6/0x1e0
[ 3134.952068][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3134.952068][   T73] 
[ 3134.954069][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3134.954357][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3134.954357][   T73]      netdev_get_by_index+0x5e/0x80
[ 3134.954357][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3134.954357][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3134.954357][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3134.954357][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3134.954357][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3134.954357][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3134.954357][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3134.954357][   T73]      addrconf_dad_begin+0x310/0x670
[ 3134.954357][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3134.954357][   T73]      process_one_work+0x84d/0x18a0
[ 3134.954357][   T73]      worker_thread+0x587/0xd30
[ 3134.954357][   T73]      kthread+0x28a/0x350
[ 3134.954357][   T73]      ret_from_fork+0x31/0x70
[ 3134.954357][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3134.954357][   T73] 
[ 3134.956536][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3134.956536][   T73]      netdev_get_by_index+0x5e/0x80
[ 3134.956536][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3134.956536][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3134.956536][   T73]      ip6_route_add+0x1c/0x140
[ 3134.956536][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3134.956536][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3134.956536][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3134.956536][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3134.956536][   T73]      netlink_rcv_skb+0x130/0x360
[ 3134.956536][   T73]      netlink_unicast+0x449/0x710
[ 3134.956536][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3134.956536][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3134.956536][   T73]      ___sys_sendmsg+0xee/0x170
[ 3134.956536][   T73]      __sys_sendmsg+0xcd/0x170
[ 3134.956536][   T73]      do_syscall_64+0xc6/0x1e0
[ 3134.956536][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3134.956536][   T73] 
[ 3134.958794][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3134.958794][   T73]      netdev_get_by_index+0x5e/0x80
[ 3134.958794][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3134.958794][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3134.958794][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3134.958794][   T73]      ipv6_add_addr+0x411/0x2000
[ 3134.958794][   T73]      inet6_addr_add+0x30e/0xa40
[ 3134.958794][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3134.958794][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3134.958794][   T73]      netlink_rcv_skb+0x130/0x360
[ 3134.958794][   T73]      netlink_unicast+0x449/0x710
[ 3134.958794][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3134.958794][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3134.958794][   T73]      ___sys_sendmsg+0xee/0x170
[ 3134.958794][   T73]      __sys_sendmsg+0xcd/0x170
[ 3134.958794][   T73]      do_syscall_64+0xc6/0x1e0
[ 3134.958794][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3134.958794][   T73] 
[ 3134.960995][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3134.960995][   T73]      netdev_get_by_index+0x5e/0x80
[ 3134.960995][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3134.960995][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3134.960995][   T73]      ip6_route_add+0x1c/0x140
[ 3134.960995][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3134.960995][   T73]      addrconf_add_dev+0xe2/0x170
[ 3134.960995][   T73]      inet6_addr_add+0x12f/0xa40
[ 3134.960995][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3134.960995][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3134.960995][   T73]      netlink_rcv_skb+0x130/0x360
[ 3134.960995][   T73]      netlink_unicast+0x449/0x710
[ 3134.960995][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3134.960995][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3134.960995][   T73]      ___sys_sendmsg+0xee/0x170
[ 3134.960995][   T73]      __sys_sendmsg+0xcd/0x170
[ 3134.960995][   T73]      do_syscall_64+0xc6/0x1e0
[ 3134.960995][   T73] 
[ 3134.963662][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3134.963662][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3134.963662][   T73]      ipv6_find_idev+0x102/0x170
[ 3134.963662][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3134.963662][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3134.963662][   T73]      netlink_rcv_skb+0x130/0x360
[ 3134.963662][   T73]      netlink_unicast+0x449/0x710
[ 3134.963662][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3134.963662][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3134.963662][   T73]      ___sys_sendmsg+0xee/0x170
[ 3134.963662][   T73]      __sys_sendmsg+0xcd/0x170
[ 3134.963662][   T73]      do_syscall_64+0xc6/0x1e0
[ 3134.963662][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3134.963662][   T73] 
[ 3134.965398][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3134.965398][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3134.965398][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3134.965398][   T73]      ipv6_find_idev+0x102/0x170
[ 3134.965398][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3134.965398][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3134.965398][   T73]      netlink_rcv_skb+0x130/0x360
[ 3134.965398][   T73]      netlink_unicast+0x449/0x710
[ 3134.965398][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3134.965398][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3134.965398][   T73]      ___sys_sendmsg+0xee/0x170
[ 3134.965398][   T73]      __sys_sendmsg+0xcd/0x170
[ 3134.965398][   T73]      do_syscall_64+0xc6/0x1e0
[ 3134.965398][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3134.965398][   T73] 
[ 3144.967771][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3144.968274][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3144.968274][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3144.968274][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3144.968274][   T73]      fib6_nh_init+0xa22/0x1580
[ 3144.968274][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3144.968274][   T73]      ip6_route_add+0x1c/0x140
[ 3144.968274][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3144.968274][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3144.968274][   T73]      netlink_rcv_skb+0x130/0x360
[ 3144.968274][   T73]      netlink_unicast+0x449/0x710
[ 3144.968274][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3144.968274][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3144.968274][   T73]      ___sys_sendmsg+0xee/0x170
[ 3144.968274][   T73]      __sys_sendmsg+0xcd/0x170
[ 3144.968274][   T73]      do_syscall_64+0xc6/0x1e0
[ 3144.968274][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3144.968274][   T73] 
[ 3144.970208][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3144.970208][   T73]      dst_init+0x84/0x4a0
[ 3144.970208][   T73]      dst_alloc+0x97/0x150
[ 3144.970208][   T73]      ip6_dst_alloc+0x23/0x90
[ 3144.970208][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3144.970208][   T73]      ip6_pol_route+0x56f/0x840
[ 3144.970208][   T73]      fib6_rule_lookup+0x456/0x630
[ 3144.970208][   T73]      ip6_route_input+0x59c/0xa50
[ 3144.970208][   T73]      ipv6_rcv+0x397/0x810
[ 3144.970208][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3144.970208][   T73]      process_backlog+0x101/0x620
[ 3144.970208][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3144.970208][   T73]      net_rx_action+0x495/0xbe0
[ 3144.970208][   T73]      __do_softirq+0x1b5/0x7f6
[ 3144.970208][   T73] 
[ 3144.971864][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3144.971864][   T73]      netdev_get_by_index+0x5e/0x80
[ 3144.971864][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3144.971864][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3144.971864][   T73]      ip6_route_add+0x1c/0x140
[ 3144.971864][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3144.971864][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3144.971864][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3144.971864][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3144.971864][   T73]      netlink_rcv_skb+0x130/0x360
[ 3144.971864][   T73]      netlink_unicast+0x449/0x710
[ 3144.971864][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3144.971864][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3144.971864][   T73]      ___sys_sendmsg+0xee/0x170
[ 3144.971864][   T73]      __sys_sendmsg+0xcd/0x170
[ 3144.971864][   T73]      do_syscall_64+0xc6/0x1e0
[ 3144.971864][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3144.971864][   T73] 
[ 3144.973879][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3144.973879][   T73]      netdev_get_by_index+0x5e/0x80
[ 3144.973879][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3144.973879][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3144.973879][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3144.973879][   T73]      ipv6_add_addr+0x411/0x2000
[ 3144.973879][   T73]      inet6_addr_add+0x30e/0xa40
[ 3144.973879][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3144.973879][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3144.973879][   T73]      netlink_rcv_skb+0x130/0x360
[ 3144.973879][   T73]      netlink_unicast+0x449/0x710
[ 3144.973879][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3144.973879][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3144.973879][   T73]      ___sys_sendmsg+0xee/0x170
[ 3144.973879][   T73]      __sys_sendmsg+0xcd/0x170
[ 3144.973879][   T73]      do_syscall_64+0xc6/0x1e0
[ 3144.973879][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3144.973879][   T73] 
[ 3144.975893][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3144.975893][   T73]      netdev_get_by_index+0x5e/0x80
[ 3144.975893][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3144.975893][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3144.975893][   T73]      ip6_route_add+0x1c/0x140
[ 3144.975893][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3144.975893][   T73]      addrconf_add_dev+0xe2/0x170
[ 3144.975893][   T73]      inet6_addr_add+0x12f/0xa40
[ 3144.975893][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3144.975893][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3144.975893][   T73]      netlink_rcv_skb+0x130/0x360
[ 3144.975893][   T73]      netlink_unicast+0x449/0x710
[ 3144.975893][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3144.975893][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3144.975893][   T73]      ___sys_sendmsg+0xee/0x170
[ 3144.975893][   T73]      __sys_sendmsg+0xcd/0x170
[ 3144.975893][   T73]      do_syscall_64+0xc6/0x1e0
[ 3144.975893][   T73] 
[ 3144.977875][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3144.977875][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3144.977875][   T73]      ipv6_find_idev+0x102/0x170
[ 3144.977875][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3144.977875][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3144.977875][   T73]      netlink_rcv_skb+0x130/0x360
[ 3144.977875][   T73]      netlink_unicast+0x449/0x710
[ 3144.977875][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3144.977875][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3144.977875][   T73]      ___sys_sendmsg+0xee/0x170
[ 3144.977875][   T73]      __sys_sendmsg+0xcd/0x170
[ 3144.977875][   T73]      do_syscall_64+0xc6/0x1e0
[ 3144.977875][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3144.977875][   T73] 
[ 3144.979433][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3144.979433][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3144.979433][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3144.979433][   T73]      ipv6_find_idev+0x102/0x170
[ 3144.979433][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3144.979433][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3144.979433][   T73]      netlink_rcv_skb+0x130/0x360
[ 3144.979433][   T73]      netlink_unicast+0x449/0x710
[ 3144.979433][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3144.979433][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3144.979433][   T73]      ___sys_sendmsg+0xee/0x170
[ 3144.979433][   T73]      __sys_sendmsg+0xcd/0x170
[ 3144.979433][   T73]      do_syscall_64+0xc6/0x1e0
[ 3144.979433][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3144.979433][   T73] 
[ 3144.981158][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3144.981445][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3144.981445][   T73]      netdev_get_by_index+0x5e/0x80
[ 3144.981445][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3144.981445][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3144.981445][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3144.981445][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3144.981445][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3144.981445][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3144.981445][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3144.981445][   T73]      addrconf_dad_begin+0x310/0x670
[ 3144.981445][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3144.981445][   T73]      process_one_work+0x84d/0x18a0
[ 3144.981445][   T73]      worker_thread+0x587/0xd30
[ 3144.981445][   T73]      kthread+0x28a/0x350
[ 3144.981445][   T73]      ret_from_fork+0x31/0x70
[ 3144.981445][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3144.981445][   T73] 
[ 3144.983405][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3144.983405][   T73]      netdev_get_by_index+0x5e/0x80
[ 3144.983405][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3144.983405][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3144.983405][   T73]      ip6_route_add+0x1c/0x140
[ 3144.983405][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3144.983405][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3144.983405][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3144.983405][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3144.983405][   T73]      netlink_rcv_skb+0x130/0x360
[ 3144.983405][   T73]      netlink_unicast+0x449/0x710
[ 3144.983405][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3144.983405][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3144.983405][   T73]      ___sys_sendmsg+0xee/0x170
[ 3144.983405][   T73]      __sys_sendmsg+0xcd/0x170
[ 3144.983405][   T73]      do_syscall_64+0xc6/0x1e0
[ 3144.983405][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3144.983405][   T73] 
[ 3144.985415][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3144.985415][   T73]      netdev_get_by_index+0x5e/0x80
[ 3144.985415][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3144.985415][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3144.985415][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3144.985415][   T73]      ipv6_add_addr+0x411/0x2000
[ 3144.985415][   T73]      inet6_addr_add+0x30e/0xa40
[ 3144.985415][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3144.985415][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3144.985415][   T73]      netlink_rcv_skb+0x130/0x360
[ 3144.985415][   T73]      netlink_unicast+0x449/0x710
[ 3144.985415][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3144.985415][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3144.985415][   T73]      ___sys_sendmsg+0xee/0x170
[ 3144.985415][   T73]      __sys_sendmsg+0xcd/0x170
[ 3144.985415][   T73]      do_syscall_64+0xc6/0x1e0
[ 3144.985415][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3144.985415][   T73] 
[ 3144.987430][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3144.987430][   T73]      netdev_get_by_index+0x5e/0x80
[ 3144.987430][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3144.987430][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3144.987430][   T73]      ip6_route_add+0x1c/0x140
[ 3144.987430][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3144.987430][   T73]      addrconf_add_dev+0xe2/0x170
[ 3144.987430][   T73]      inet6_addr_add+0x12f/0xa40
[ 3144.987430][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3144.987430][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3144.987430][   T73]      netlink_rcv_skb+0x130/0x360
[ 3144.987430][   T73]      netlink_unicast+0x449/0x710
[ 3144.987430][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3144.987430][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3144.987430][   T73]      ___sys_sendmsg+0xee/0x170
[ 3144.987430][   T73]      __sys_sendmsg+0xcd/0x170
[ 3144.987430][   T73]      do_syscall_64+0xc6/0x1e0
[ 3144.987430][   T73] 
[ 3144.989426][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3144.989426][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3144.989426][   T73]      ipv6_find_idev+0x102/0x170
[ 3144.989426][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3144.989426][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3144.989426][   T73]      netlink_rcv_skb+0x130/0x360
[ 3144.989426][   T73]      netlink_unicast+0x449/0x710
[ 3144.989426][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3144.989426][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3144.989426][   T73]      ___sys_sendmsg+0xee/0x170
[ 3144.989426][   T73]      __sys_sendmsg+0xcd/0x170
[ 3144.989426][   T73]      do_syscall_64+0xc6/0x1e0
[ 3144.989426][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3144.989426][   T73] 
[ 3144.991377][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3144.991377][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3144.991377][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3144.991377][   T73]      ipv6_find_idev+0x102/0x170
[ 3144.991377][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3144.991377][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3144.991377][   T73]      netlink_rcv_skb+0x130/0x360
[ 3144.991377][   T73]      netlink_unicast+0x449/0x710
[ 3144.991377][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3144.991377][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3144.991377][   T73]      ___sys_sendmsg+0xee/0x170
[ 3144.991377][   T73]      __sys_sendmsg+0xcd/0x170
[ 3144.991377][   T73]      do_syscall_64+0xc6/0x1e0
[ 3144.991377][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3144.991377][   T73] 
[ 3144.993101][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3144.993377][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3144.993377][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3144.993377][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3144.993377][   T73]      fib6_nh_init+0xa22/0x1580
[ 3144.993377][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3144.993377][   T73]      ip6_route_add+0x1c/0x140
[ 3144.993377][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3144.993377][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3144.993377][   T73]      netlink_rcv_skb+0x130/0x360
[ 3144.993377][   T73]      netlink_unicast+0x449/0x710
[ 3144.993377][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3144.993377][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3144.993377][   T73]      ___sys_sendmsg+0xee/0x170
[ 3144.993377][   T73]      __sys_sendmsg+0xcd/0x170
[ 3144.993377][   T73]      do_syscall_64+0xc6/0x1e0
[ 3144.993377][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3144.993377][   T73] 
[ 3144.995464][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3144.995464][   T73]      dst_init+0x84/0x4a0
[ 3144.995464][   T73]      dst_alloc+0x97/0x150
[ 3144.995464][   T73]      ip6_dst_alloc+0x23/0x90
[ 3144.995464][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3144.995464][   T73]      ip6_pol_route+0x56f/0x840
[ 3144.995464][   T73]      fib6_rule_lookup+0x456/0x630
[ 3144.995464][   T73]      ip6_route_input+0x59c/0xa50
[ 3144.995464][   T73]      ipv6_rcv+0x397/0x810
[ 3144.995464][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3144.995464][   T73]      process_backlog+0x101/0x620
[ 3144.995464][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3144.995464][   T73]      net_rx_action+0x495/0xbe0
[ 3144.995464][   T73]      __do_softirq+0x1b5/0x7f6
[ 3144.995464][   T73] 
[ 3144.997301][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3144.997301][   T73]      netdev_get_by_index+0x5e/0x80
[ 3144.997301][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3144.997301][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3144.997301][   T73]      ip6_route_add+0x1c/0x140
[ 3144.997301][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3144.997301][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3144.997301][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3144.997301][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3144.997301][   T73]      netlink_rcv_skb+0x130/0x360
[ 3144.997301][   T73]      netlink_unicast+0x449/0x710
[ 3144.997301][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3144.997301][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3144.997301][   T73]      ___sys_sendmsg+0xee/0x170
[ 3144.997301][   T73]      __sys_sendmsg+0xcd/0x170
[ 3144.997301][   T73]      do_syscall_64+0xc6/0x1e0
[ 3144.997301][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3144.997301][   T73] 
[ 3144.999567][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3144.999567][   T73]      netdev_get_by_index+0x5e/0x80
[ 3144.999567][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3144.999567][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3144.999567][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3144.999567][   T73]      ipv6_add_addr+0x411/0x2000
[ 3144.999567][   T73]      inet6_addr_add+0x30e/0xa40
[ 3144.999567][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3144.999567][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3144.999567][   T73]      netlink_rcv_skb+0x130/0x360
[ 3144.999567][   T73]      netlink_unicast+0x449/0x710
[ 3144.999567][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3144.999567][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3144.999567][   T73]      ___sys_sendmsg+0xee/0x170
[ 3144.999567][   T73]      __sys_sendmsg+0xcd/0x170
[ 3144.999567][   T73]      do_syscall_64+0xc6/0x1e0
[ 3144.999567][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3144.999567][   T73] 
[ 3145.001902][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3145.001902][   T73]      netdev_get_by_index+0x5e/0x80
[ 3145.001902][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3145.001902][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3145.001902][   T73]      ip6_route_add+0x1c/0x140
[ 3145.001902][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3145.001902][   T73]      addrconf_add_dev+0xe2/0x170
[ 3145.001902][   T73]      inet6_addr_add+0x12f/0xa40
[ 3145.001902][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3145.001902][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3145.001902][   T73]      netlink_rcv_skb+0x130/0x360
[ 3145.001902][   T73]      netlink_unicast+0x449/0x710
[ 3145.001902][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3145.001902][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3145.001902][   T73]      ___sys_sendmsg+0xee/0x170
[ 3145.001902][   T73]      __sys_sendmsg+0xcd/0x170
[ 3145.001902][   T73]      do_syscall_64+0xc6/0x1e0
[ 3145.001902][   T73] 
[ 3145.004063][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3145.004063][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3145.004063][   T73]      ipv6_find_idev+0x102/0x170
[ 3145.004063][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3145.004063][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3145.004063][   T73]      netlink_rcv_skb+0x130/0x360
[ 3145.004063][   T73]      netlink_unicast+0x449/0x710
[ 3145.004063][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3145.004063][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3145.004063][   T73]      ___sys_sendmsg+0xee/0x170
[ 3145.004063][   T73]      __sys_sendmsg+0xcd/0x170
[ 3145.004063][   T73]      do_syscall_64+0xc6/0x1e0
[ 3145.004063][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3145.004063][   T73] 
[ 3145.005799][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3145.005799][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3145.005799][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3145.005799][   T73]      ipv6_find_idev+0x102/0x170
[ 3145.005799][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3145.005799][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3145.005799][   T73]      netlink_rcv_skb+0x130/0x360
[ 3145.005799][   T73]      netlink_unicast+0x449/0x710
[ 3145.005799][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3145.005799][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3145.005799][   T73]      ___sys_sendmsg+0xee/0x170
[ 3145.005799][   T73]      __sys_sendmsg+0xcd/0x170
[ 3145.005799][   T73]      do_syscall_64+0xc6/0x1e0
[ 3145.005799][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3145.005799][   T73] 
[ 3145.007752][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3145.008029][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3145.008029][   T73]      netdev_get_by_index+0x5e/0x80
[ 3145.008029][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3145.008029][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3145.008029][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3145.008029][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3145.008029][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3145.008029][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3145.008029][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3145.008029][   T73]      addrconf_dad_begin+0x310/0x670
[ 3145.008029][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3145.008029][   T73]      process_one_work+0x84d/0x18a0
[ 3145.008029][   T73]      worker_thread+0x587/0xd30
[ 3145.008029][   T73]      kthread+0x28a/0x350
[ 3145.008029][   T73]      ret_from_fork+0x31/0x70
[ 3145.008029][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3145.008029][   T73] 
[ 3145.010129][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3145.010129][   T73]      netdev_get_by_index+0x5e/0x80
[ 3145.010129][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3145.010129][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3145.010129][   T73]      ip6_route_add+0x1c/0x140
[ 3145.010129][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3145.010129][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3145.010129][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3145.010129][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3145.010129][   T73]      netlink_rcv_skb+0x130/0x360
[ 3145.010129][   T73]      netlink_unicast+0x449/0x710
[ 3145.010129][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3145.010129][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3145.010129][   T73]      ___sys_sendmsg+0xee/0x170
[ 3145.010129][   T73]      __sys_sendmsg+0xcd/0x170
[ 3145.010129][   T73]      do_syscall_64+0xc6/0x1e0
[ 3145.010129][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3145.010129][   T73] 
[ 3145.012342][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3145.012342][   T73]      netdev_get_by_index+0x5e/0x80
[ 3145.012342][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3145.012342][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3145.012342][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3145.012342][   T73]      ipv6_add_addr+0x411/0x2000
[ 3145.012342][   T73]      inet6_addr_add+0x30e/0xa40
[ 3145.012342][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3145.012342][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3145.012342][   T73]      netlink_rcv_skb+0x130/0x360
[ 3145.012342][   T73]      netlink_unicast+0x449/0x710
[ 3145.012342][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3145.012342][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3145.012342][   T73]      ___sys_sendmsg+0xee/0x170
[ 3145.012342][   T73]      __sys_sendmsg+0xcd/0x170
[ 3145.012342][   T73]      do_syscall_64+0xc6/0x1e0
[ 3145.012342][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3145.012342][   T73] 
[ 3145.014867][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3145.014867][   T73]      netdev_get_by_index+0x5e/0x80
[ 3145.014867][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3145.014867][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3145.014867][   T73]      ip6_route_add+0x1c/0x140
[ 3145.014867][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3145.014867][   T73]      addrconf_add_dev+0xe2/0x170
[ 3145.014867][   T73]      inet6_addr_add+0x12f/0xa40
[ 3145.014867][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3145.014867][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3145.014867][   T73]      netlink_rcv_skb+0x130/0x360
[ 3145.014867][   T73]      netlink_unicast+0x449/0x710
[ 3145.014867][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3145.014867][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3145.014867][   T73]      ___sys_sendmsg+0xee/0x170
[ 3145.014867][   T73]      __sys_sendmsg+0xcd/0x170
[ 3145.014867][   T73]      do_syscall_64+0xc6/0x1e0
[ 3145.014867][   T73] 
[ 3145.016992][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3145.016992][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3145.016992][   T73]      ipv6_find_idev+0x102/0x170
[ 3145.016992][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3145.016992][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3145.016992][   T73]      netlink_rcv_skb+0x130/0x360
[ 3145.016992][   T73]      netlink_unicast+0x449/0x710
[ 3145.016992][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3145.016992][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3145.016992][   T73]      ___sys_sendmsg+0xee/0x170
[ 3145.016992][   T73]      __sys_sendmsg+0xcd/0x170
[ 3145.016992][   T73]      do_syscall_64+0xc6/0x1e0
[ 3145.016992][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3145.016992][   T73] 
[ 3145.018618][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3145.018618][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3145.018618][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3145.018618][   T73]      ipv6_find_idev+0x102/0x170
[ 3145.018618][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3145.018618][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3145.018618][   T73]      netlink_rcv_skb+0x130/0x360
[ 3145.018618][   T73]      netlink_unicast+0x449/0x710
[ 3145.018618][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3145.018618][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3145.018618][   T73]      ___sys_sendmsg+0xee/0x170
[ 3145.018618][   T73]      __sys_sendmsg+0xcd/0x170
[ 3145.018618][   T73]      do_syscall_64+0xc6/0x1e0
[ 3145.018618][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3145.018618][   T73] 
[ 3155.063754][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3155.064206][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3155.064206][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3155.064206][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3155.064206][   T73]      fib6_nh_init+0xa22/0x1580
[ 3155.064206][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3155.064206][   T73]      ip6_route_add+0x1c/0x140
[ 3155.064206][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3155.064206][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3155.064206][   T73]      netlink_rcv_skb+0x130/0x360
[ 3155.064206][   T73]      netlink_unicast+0x449/0x710
[ 3155.064206][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3155.064206][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3155.064206][   T73]      ___sys_sendmsg+0xee/0x170
[ 3155.064206][   T73]      __sys_sendmsg+0xcd/0x170
[ 3155.064206][   T73]      do_syscall_64+0xc6/0x1e0
[ 3155.064206][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3155.064206][   T73] 
[ 3155.066113][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3155.066113][   T73]      dst_init+0x84/0x4a0
[ 3155.066113][   T73]      dst_alloc+0x97/0x150
[ 3155.066113][   T73]      ip6_dst_alloc+0x23/0x90
[ 3155.066113][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3155.066113][   T73]      ip6_pol_route+0x56f/0x840
[ 3155.066113][   T73]      fib6_rule_lookup+0x456/0x630
[ 3155.066113][   T73]      ip6_route_input+0x59c/0xa50
[ 3155.066113][   T73]      ipv6_rcv+0x397/0x810
[ 3155.066113][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3155.066113][   T73]      process_backlog+0x101/0x620
[ 3155.066113][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3155.066113][   T73]      net_rx_action+0x495/0xbe0
[ 3155.066113][   T73]      __do_softirq+0x1b5/0x7f6
[ 3155.066113][   T73] 
[ 3155.067763][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3155.067763][   T73]      netdev_get_by_index+0x5e/0x80
[ 3155.067763][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3155.067763][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3155.067763][   T73]      ip6_route_add+0x1c/0x140
[ 3155.067763][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3155.067763][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3155.067763][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3155.067763][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3155.067763][   T73]      netlink_rcv_skb+0x130/0x360
[ 3155.067763][   T73]      netlink_unicast+0x449/0x710
[ 3155.067763][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3155.067763][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3155.067763][   T73]      ___sys_sendmsg+0xee/0x170
[ 3155.067763][   T73]      __sys_sendmsg+0xcd/0x170
[ 3155.067763][   T73]      do_syscall_64+0xc6/0x1e0
[ 3155.067763][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3155.067763][   T73] 
[ 3155.069843][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3155.069843][   T73]      netdev_get_by_index+0x5e/0x80
[ 3155.069843][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3155.069843][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3155.069843][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3155.069843][   T73]      ipv6_add_addr+0x411/0x2000
[ 3155.069843][   T73]      inet6_addr_add+0x30e/0xa40
[ 3155.069843][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3155.069843][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3155.069843][   T73]      netlink_rcv_skb+0x130/0x360
[ 3155.069843][   T73]      netlink_unicast+0x449/0x710
[ 3155.069843][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3155.069843][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3155.069843][   T73]      ___sys_sendmsg+0xee/0x170
[ 3155.069843][   T73]      __sys_sendmsg+0xcd/0x170
[ 3155.069843][   T73]      do_syscall_64+0xc6/0x1e0
[ 3155.069843][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3155.069843][   T73] 
[ 3155.071875][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3155.071875][   T73]      netdev_get_by_index+0x5e/0x80
[ 3155.071875][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3155.071875][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3155.071875][   T73]      ip6_route_add+0x1c/0x140
[ 3155.071875][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3155.071875][   T73]      addrconf_add_dev+0xe2/0x170
[ 3155.071875][   T73]      inet6_addr_add+0x12f/0xa40
[ 3155.071875][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3155.071875][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3155.071875][   T73]      netlink_rcv_skb+0x130/0x360
[ 3155.071875][   T73]      netlink_unicast+0x449/0x710
[ 3155.071875][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3155.071875][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3155.071875][   T73]      ___sys_sendmsg+0xee/0x170
[ 3155.071875][   T73]      __sys_sendmsg+0xcd/0x170
[ 3155.071875][   T73]      do_syscall_64+0xc6/0x1e0
[ 3155.071875][   T73] 
[ 3155.073866][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3155.073866][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3155.073866][   T73]      ipv6_find_idev+0x102/0x170
[ 3155.073866][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3155.073866][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3155.073866][   T73]      netlink_rcv_skb+0x130/0x360
[ 3155.073866][   T73]      netlink_unicast+0x449/0x710
[ 3155.073866][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3155.073866][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3155.073866][   T73]      ___sys_sendmsg+0xee/0x170
[ 3155.073866][   T73]      __sys_sendmsg+0xcd/0x170
[ 3155.073866][   T73]      do_syscall_64+0xc6/0x1e0
[ 3155.073866][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3155.073866][   T73] 
[ 3155.075429][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3155.075429][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3155.075429][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3155.075429][   T73]      ipv6_find_idev+0x102/0x170
[ 3155.075429][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3155.075429][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3155.075429][   T73]      netlink_rcv_skb+0x130/0x360
[ 3155.075429][   T73]      netlink_unicast+0x449/0x710
[ 3155.075429][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3155.075429][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3155.075429][   T73]      ___sys_sendmsg+0xee/0x170
[ 3155.075429][   T73]      __sys_sendmsg+0xcd/0x170
[ 3155.075429][   T73]      do_syscall_64+0xc6/0x1e0
[ 3155.075429][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3155.075429][   T73] 
[ 3155.077162][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3155.077453][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3155.077453][   T73]      netdev_get_by_index+0x5e/0x80
[ 3155.077453][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3155.077453][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3155.077453][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3155.077453][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3155.077453][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3155.077453][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3155.077453][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3155.077453][   T73]      addrconf_dad_begin+0x310/0x670
[ 3155.077453][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3155.077453][   T73]      process_one_work+0x84d/0x18a0
[ 3155.077453][   T73]      worker_thread+0x587/0xd30
[ 3155.077453][   T73]      kthread+0x28a/0x350
[ 3155.077453][   T73]      ret_from_fork+0x31/0x70
[ 3155.077453][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3155.077453][   T73] 
[ 3155.079383][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3155.079383][   T73]      netdev_get_by_index+0x5e/0x80
[ 3155.079383][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3155.079383][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3155.079383][   T73]      ip6_route_add+0x1c/0x140
[ 3155.079383][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3155.079383][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3155.079383][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3155.079383][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3155.079383][   T73]      netlink_rcv_skb+0x130/0x360
[ 3155.079383][   T73]      netlink_unicast+0x449/0x710
[ 3155.079383][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3155.079383][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3155.079383][   T73]      ___sys_sendmsg+0xee/0x170
[ 3155.079383][   T73]      __sys_sendmsg+0xcd/0x170
[ 3155.079383][   T73]      do_syscall_64+0xc6/0x1e0
[ 3155.079383][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3155.079383][   T73] 
[ 3155.081414][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3155.081414][   T73]      netdev_get_by_index+0x5e/0x80
[ 3155.081414][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3155.081414][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3155.081414][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3155.081414][   T73]      ipv6_add_addr+0x411/0x2000
[ 3155.081414][   T73]      inet6_addr_add+0x30e/0xa40
[ 3155.081414][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3155.081414][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3155.081414][   T73]      netlink_rcv_skb+0x130/0x360
[ 3155.081414][   T73]      netlink_unicast+0x449/0x710
[ 3155.081414][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3155.081414][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3155.081414][   T73]      ___sys_sendmsg+0xee/0x170
[ 3155.081414][   T73]      __sys_sendmsg+0xcd/0x170
[ 3155.081414][   T73]      do_syscall_64+0xc6/0x1e0
[ 3155.081414][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3155.081414][   T73] 
[ 3155.083520][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3155.083520][   T73]      netdev_get_by_index+0x5e/0x80
[ 3155.083520][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3155.083520][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3155.083520][   T73]      ip6_route_add+0x1c/0x140
[ 3155.083520][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3155.083520][   T73]      addrconf_add_dev+0xe2/0x170
[ 3155.083520][   T73]      inet6_addr_add+0x12f/0xa40
[ 3155.083520][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3155.083520][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3155.083520][   T73]      netlink_rcv_skb+0x130/0x360
[ 3155.083520][   T73]      netlink_unicast+0x449/0x710
[ 3155.083520][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3155.083520][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3155.083520][   T73]      ___sys_sendmsg+0xee/0x170
[ 3155.083520][   T73]      __sys_sendmsg+0xcd/0x170
[ 3155.083520][   T73]      do_syscall_64+0xc6/0x1e0
[ 3155.083520][   T73] 
[ 3155.085509][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3155.085509][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3155.085509][   T73]      ipv6_find_idev+0x102/0x170
[ 3155.085509][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3155.085509][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3155.085509][   T73]      netlink_rcv_skb+0x130/0x360
[ 3155.085509][   T73]      netlink_unicast+0x449/0x710
[ 3155.085509][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3155.085509][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3155.085509][   T73]      ___sys_sendmsg+0xee/0x170
[ 3155.085509][   T73]      __sys_sendmsg+0xcd/0x170
[ 3155.085509][   T73]      do_syscall_64+0xc6/0x1e0
[ 3155.085509][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3155.085509][   T73] 
[ 3155.087056][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3155.087056][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3155.087056][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3155.087056][   T73]      ipv6_find_idev+0x102/0x170
[ 3155.087056][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3155.087056][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3155.087056][   T73]      netlink_rcv_skb+0x130/0x360
[ 3155.087056][   T73]      netlink_unicast+0x449/0x710
[ 3155.087056][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3155.087056][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3155.087056][   T73]      ___sys_sendmsg+0xee/0x170
[ 3155.087056][   T73]      __sys_sendmsg+0xcd/0x170
[ 3155.087056][   T73]      do_syscall_64+0xc6/0x1e0
[ 3155.087056][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3155.087056][   T73] 
[ 3155.088763][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3155.089033][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3155.089033][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3155.089033][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3155.089033][   T73]      fib6_nh_init+0xa22/0x1580
[ 3155.089033][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3155.089033][   T73]      ip6_route_add+0x1c/0x140
[ 3155.089033][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3155.089033][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3155.089033][   T73]      netlink_rcv_skb+0x130/0x360
[ 3155.089033][   T73]      netlink_unicast+0x449/0x710
[ 3155.089033][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3155.089033][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3155.089033][   T73]      ___sys_sendmsg+0xee/0x170
[ 3155.089033][   T73]      __sys_sendmsg+0xcd/0x170
[ 3155.089033][   T73]      do_syscall_64+0xc6/0x1e0
[ 3155.089033][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3155.089033][   T73] 
[ 3155.091069][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3155.091069][   T73]      dst_init+0x84/0x4a0
[ 3155.091069][   T73]      dst_alloc+0x97/0x150
[ 3155.091069][   T73]      ip6_dst_alloc+0x23/0x90
[ 3155.091069][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3155.091069][   T73]      ip6_pol_route+0x56f/0x840
[ 3155.091069][   T73]      fib6_rule_lookup+0x456/0x630
[ 3155.091069][   T73]      ip6_route_input+0x59c/0xa50
[ 3155.091069][   T73]      ipv6_rcv+0x397/0x810
[ 3155.091069][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3155.091069][   T73]      process_backlog+0x101/0x620
[ 3155.091069][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3155.091069][   T73]      net_rx_action+0x495/0xbe0
[ 3155.091069][   T73]      __do_softirq+0x1b5/0x7f6
[ 3155.091069][   T73] 
[ 3155.092843][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3155.092843][   T73]      netdev_get_by_index+0x5e/0x80
[ 3155.092843][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3155.092843][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3155.092843][   T73]      ip6_route_add+0x1c/0x140
[ 3155.092843][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3155.092843][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3155.092843][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3155.092843][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3155.092843][   T73]      netlink_rcv_skb+0x130/0x360
[ 3155.092843][   T73]      netlink_unicast+0x449/0x710
[ 3155.092843][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3155.092843][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3155.092843][   T73]      ___sys_sendmsg+0xee/0x170
[ 3155.092843][   T73]      __sys_sendmsg+0xcd/0x170
[ 3155.092843][   T73]      do_syscall_64+0xc6/0x1e0
[ 3155.092843][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3155.092843][   T73] 
[ 3155.094994][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3155.094994][   T73]      netdev_get_by_index+0x5e/0x80
[ 3155.094994][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3155.094994][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3155.094994][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3155.094994][   T73]      ipv6_add_addr+0x411/0x2000
[ 3155.094994][   T73]      inet6_addr_add+0x30e/0xa40
[ 3155.094994][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3155.094994][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3155.094994][   T73]      netlink_rcv_skb+0x130/0x360
[ 3155.094994][   T73]      netlink_unicast+0x449/0x710
[ 3155.094994][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3155.094994][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3155.094994][   T73]      ___sys_sendmsg+0xee/0x170
[ 3155.094994][   T73]      __sys_sendmsg+0xcd/0x170
[ 3155.094994][   T73]      do_syscall_64+0xc6/0x1e0
[ 3155.094994][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3155.094994][   T73] 
[ 3155.097147][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3155.097147][   T73]      netdev_get_by_index+0x5e/0x80
[ 3155.097147][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3155.097147][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3155.097147][   T73]      ip6_route_add+0x1c/0x140
[ 3155.097147][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3155.097147][   T73]      addrconf_add_dev+0xe2/0x170
[ 3155.097147][   T73]      inet6_addr_add+0x12f/0xa40
[ 3155.097147][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3155.097147][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3155.097147][   T73]      netlink_rcv_skb+0x130/0x360
[ 3155.097147][   T73]      netlink_unicast+0x449/0x710
[ 3155.097147][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3155.097147][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3155.097147][   T73]      ___sys_sendmsg+0xee/0x170
[ 3155.097147][   T73]      __sys_sendmsg+0xcd/0x170
[ 3155.097147][   T73]      do_syscall_64+0xc6/0x1e0
[ 3155.097147][   T73] 
[ 3155.099271][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3155.099271][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3155.099271][   T73]      ipv6_find_idev+0x102/0x170
[ 3155.099271][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3155.099271][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3155.099271][   T73]      netlink_rcv_skb+0x130/0x360
[ 3155.099271][   T73]      netlink_unicast+0x449/0x710
[ 3155.099271][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3155.099271][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3155.099271][   T73]      ___sys_sendmsg+0xee/0x170
[ 3155.099271][   T73]      __sys_sendmsg+0xcd/0x170
[ 3155.099271][   T73]      do_syscall_64+0xc6/0x1e0
[ 3155.099271][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3155.099271][   T73] 
[ 3155.100904][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3155.100904][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3155.100904][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3155.100904][   T73]      ipv6_find_idev+0x102/0x170
[ 3155.100904][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3155.100904][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3155.100904][   T73]      netlink_rcv_skb+0x130/0x360
[ 3155.100904][   T73]      netlink_unicast+0x449/0x710
[ 3155.100904][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3155.100904][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3155.100904][   T73]      ___sys_sendmsg+0xee/0x170
[ 3155.100904][   T73]      __sys_sendmsg+0xcd/0x170
[ 3155.100904][   T73]      do_syscall_64+0xc6/0x1e0
[ 3155.100904][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3155.100904][   T73] 
[ 3155.102822][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3155.103104][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3155.103104][   T73]      netdev_get_by_index+0x5e/0x80
[ 3155.103104][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3155.103104][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3155.103104][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3155.103104][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3155.103104][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3155.103104][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3155.103104][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3155.103104][   T73]      addrconf_dad_begin+0x310/0x670
[ 3155.103104][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3155.103104][   T73]      process_one_work+0x84d/0x18a0
[ 3155.103104][   T73]      worker_thread+0x587/0xd30
[ 3155.103104][   T73]      kthread+0x28a/0x350
[ 3155.103104][   T73]      ret_from_fork+0x31/0x70
[ 3155.103104][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3155.103104][   T73] 
[ 3155.105193][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3155.105193][   T73]      netdev_get_by_index+0x5e/0x80
[ 3155.105193][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3155.105193][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3155.105193][   T73]      ip6_route_add+0x1c/0x140
[ 3155.105193][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3155.105193][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3155.105193][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3155.105193][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3155.105193][   T73]      netlink_rcv_skb+0x130/0x360
[ 3155.105193][   T73]      netlink_unicast+0x449/0x710
[ 3155.105193][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3155.105193][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3155.105193][   T73]      ___sys_sendmsg+0xee/0x170
[ 3155.105193][   T73]      __sys_sendmsg+0xcd/0x170
[ 3155.105193][   T73]      do_syscall_64+0xc6/0x1e0
[ 3155.105193][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3155.105193][   T73] 
[ 3155.107348][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3155.107348][   T73]      netdev_get_by_index+0x5e/0x80
[ 3155.107348][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3155.107348][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3155.107348][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3155.107348][   T73]      ipv6_add_addr+0x411/0x2000
[ 3155.107348][   T73]      inet6_addr_add+0x30e/0xa40
[ 3155.107348][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3155.107348][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3155.107348][   T73]      netlink_rcv_skb+0x130/0x360
[ 3155.107348][   T73]      netlink_unicast+0x449/0x710
[ 3155.107348][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3155.107348][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3155.107348][   T73]      ___sys_sendmsg+0xee/0x170
[ 3155.107348][   T73]      __sys_sendmsg+0xcd/0x170
[ 3155.107348][   T73]      do_syscall_64+0xc6/0x1e0
[ 3155.107348][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3155.107348][   T73] 
[ 3155.109683][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3155.109683][   T73]      netdev_get_by_index+0x5e/0x80
[ 3155.109683][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3155.109683][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3155.109683][   T73]      ip6_route_add+0x1c/0x140
[ 3155.109683][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3155.109683][   T73]      addrconf_add_dev+0xe2/0x170
[ 3155.109683][   T73]      inet6_addr_add+0x12f/0xa40
[ 3155.109683][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3155.109683][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3155.109683][   T73]      netlink_rcv_skb+0x130/0x360
[ 3155.109683][   T73]      netlink_unicast+0x449/0x710
[ 3155.109683][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3155.109683][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3155.109683][   T73]      ___sys_sendmsg+0xee/0x170
[ 3155.109683][   T73]      __sys_sendmsg+0xcd/0x170
[ 3155.109683][   T73]      do_syscall_64+0xc6/0x1e0
[ 3155.109683][   T73] 
[ 3155.111871][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3155.111871][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3155.111871][   T73]      ipv6_find_idev+0x102/0x170
[ 3155.111871][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3155.111871][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3155.111871][   T73]      netlink_rcv_skb+0x130/0x360
[ 3155.111871][   T73]      netlink_unicast+0x449/0x710
[ 3155.111871][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3155.111871][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3155.111871][   T73]      ___sys_sendmsg+0xee/0x170
[ 3155.111871][   T73]      __sys_sendmsg+0xcd/0x170
[ 3155.111871][   T73]      do_syscall_64+0xc6/0x1e0
[ 3155.111871][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3155.111871][   T73] 
[ 3155.113591][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3155.113591][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3155.113591][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3155.113591][   T73]      ipv6_find_idev+0x102/0x170
[ 3155.113591][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3155.113591][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3155.113591][   T73]      netlink_rcv_skb+0x130/0x360
[ 3155.113591][   T73]      netlink_unicast+0x449/0x710
[ 3155.113591][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3155.113591][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3155.113591][   T73]      ___sys_sendmsg+0xee/0x170
[ 3155.113591][   T73]      __sys_sendmsg+0xcd/0x170
[ 3155.113591][   T73]      do_syscall_64+0xc6/0x1e0
[ 3155.113591][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3155.113591][   T73] 
[ 3165.351715][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3165.352166][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3165.352166][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3165.352166][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3165.352166][   T73]      fib6_nh_init+0xa22/0x1580
[ 3165.352166][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3165.352166][   T73]      ip6_route_add+0x1c/0x140
[ 3165.352166][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3165.352166][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3165.352166][   T73]      netlink_rcv_skb+0x130/0x360
[ 3165.352166][   T73]      netlink_unicast+0x449/0x710
[ 3165.352166][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3165.352166][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3165.352166][   T73]      ___sys_sendmsg+0xee/0x170
[ 3165.352166][   T73]      __sys_sendmsg+0xcd/0x170
[ 3165.352166][   T73]      do_syscall_64+0xc6/0x1e0
[ 3165.352166][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3165.352166][   T73] 
[ 3165.354084][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3165.354084][   T73]      dst_init+0x84/0x4a0
[ 3165.354084][   T73]      dst_alloc+0x97/0x150
[ 3165.354084][   T73]      ip6_dst_alloc+0x23/0x90
[ 3165.354084][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3165.354084][   T73]      ip6_pol_route+0x56f/0x840
[ 3165.354084][   T73]      fib6_rule_lookup+0x456/0x630
[ 3165.354084][   T73]      ip6_route_input+0x59c/0xa50
[ 3165.354084][   T73]      ipv6_rcv+0x397/0x810
[ 3165.354084][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3165.354084][   T73]      process_backlog+0x101/0x620
[ 3165.354084][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3165.354084][   T73]      net_rx_action+0x495/0xbe0
[ 3165.354084][   T73]      __do_softirq+0x1b5/0x7f6
[ 3165.354084][   T73] 
[ 3165.355741][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3165.355741][   T73]      netdev_get_by_index+0x5e/0x80
[ 3165.355741][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3165.355741][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3165.355741][   T73]      ip6_route_add+0x1c/0x140
[ 3165.355741][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3165.355741][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3165.355741][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3165.355741][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3165.355741][   T73]      netlink_rcv_skb+0x130/0x360
[ 3165.355741][   T73]      netlink_unicast+0x449/0x710
[ 3165.355741][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3165.355741][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3165.355741][   T73]      ___sys_sendmsg+0xee/0x170
[ 3165.355741][   T73]      __sys_sendmsg+0xcd/0x170
[ 3165.355741][   T73]      do_syscall_64+0xc6/0x1e0
[ 3165.355741][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3165.355741][   T73] 
[ 3165.357855][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3165.357855][   T73]      netdev_get_by_index+0x5e/0x80
[ 3165.357855][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3165.357855][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3165.357855][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3165.357855][   T73]      ipv6_add_addr+0x411/0x2000
[ 3165.357855][   T73]      inet6_addr_add+0x30e/0xa40
[ 3165.357855][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3165.357855][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3165.357855][   T73]      netlink_rcv_skb+0x130/0x360
[ 3165.357855][   T73]      netlink_unicast+0x449/0x710
[ 3165.357855][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3165.357855][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3165.357855][   T73]      ___sys_sendmsg+0xee/0x170
[ 3165.357855][   T73]      __sys_sendmsg+0xcd/0x170
[ 3165.357855][   T73]      do_syscall_64+0xc6/0x1e0
[ 3165.357855][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3165.357855][   T73] 
[ 3165.359882][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3165.359882][   T73]      netdev_get_by_index+0x5e/0x80
[ 3165.359882][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3165.359882][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3165.359882][   T73]      ip6_route_add+0x1c/0x140
[ 3165.359882][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3165.359882][   T73]      addrconf_add_dev+0xe2/0x170
[ 3165.359882][   T73]      inet6_addr_add+0x12f/0xa40
[ 3165.359882][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3165.359882][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3165.359882][   T73]      netlink_rcv_skb+0x130/0x360
[ 3165.359882][   T73]      netlink_unicast+0x449/0x710
[ 3165.359882][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3165.359882][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3165.359882][   T73]      ___sys_sendmsg+0xee/0x170
[ 3165.359882][   T73]      __sys_sendmsg+0xcd/0x170
[ 3165.359882][   T73]      do_syscall_64+0xc6/0x1e0
[ 3165.359882][   T73] 
[ 3165.361863][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3165.361863][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3165.361863][   T73]      ipv6_find_idev+0x102/0x170
[ 3165.361863][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3165.361863][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3165.361863][   T73]      netlink_rcv_skb+0x130/0x360
[ 3165.361863][   T73]      netlink_unicast+0x449/0x710
[ 3165.361863][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3165.361863][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3165.361863][   T73]      ___sys_sendmsg+0xee/0x170
[ 3165.361863][   T73]      __sys_sendmsg+0xcd/0x170
[ 3165.361863][   T73]      do_syscall_64+0xc6/0x1e0
[ 3165.361863][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3165.361863][   T73] 
[ 3165.363412][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3165.363412][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3165.363412][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3165.363412][   T73]      ipv6_find_idev+0x102/0x170
[ 3165.363412][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3165.363412][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3165.363412][   T73]      netlink_rcv_skb+0x130/0x360
[ 3165.363412][   T73]      netlink_unicast+0x449/0x710
[ 3165.363412][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3165.363412][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3165.363412][   T73]      ___sys_sendmsg+0xee/0x170
[ 3165.363412][   T73]      __sys_sendmsg+0xcd/0x170
[ 3165.363412][   T73]      do_syscall_64+0xc6/0x1e0
[ 3165.363412][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3165.363412][   T73] 
[ 3165.365150][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3165.365443][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3165.365443][   T73]      netdev_get_by_index+0x5e/0x80
[ 3165.365443][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3165.365443][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3165.365443][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3165.365443][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3165.365443][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3165.365443][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3165.365443][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3165.365443][   T73]      addrconf_dad_begin+0x310/0x670
[ 3165.365443][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3165.365443][   T73]      process_one_work+0x84d/0x18a0
[ 3165.365443][   T73]      worker_thread+0x587/0xd30
[ 3165.365443][   T73]      kthread+0x28a/0x350
[ 3165.365443][   T73]      ret_from_fork+0x31/0x70
[ 3165.365443][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3165.365443][   T73] 
[ 3165.367372][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3165.367372][   T73]      netdev_get_by_index+0x5e/0x80
[ 3165.367372][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3165.367372][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3165.367372][   T73]      ip6_route_add+0x1c/0x140
[ 3165.367372][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3165.367372][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3165.367372][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3165.367372][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3165.367372][   T73]      netlink_rcv_skb+0x130/0x360
[ 3165.367372][   T73]      netlink_unicast+0x449/0x710
[ 3165.367372][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3165.367372][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3165.367372][   T73]      ___sys_sendmsg+0xee/0x170
[ 3165.367372][   T73]      __sys_sendmsg+0xcd/0x170
[ 3165.367372][   T73]      do_syscall_64+0xc6/0x1e0
[ 3165.367372][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3165.367372][   T73] 
[ 3165.369407][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3165.369407][   T73]      netdev_get_by_index+0x5e/0x80
[ 3165.369407][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3165.369407][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3165.369407][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3165.369407][   T73]      ipv6_add_addr+0x411/0x2000
[ 3165.369407][   T73]      inet6_addr_add+0x30e/0xa40
[ 3165.369407][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3165.369407][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3165.369407][   T73]      netlink_rcv_skb+0x130/0x360
[ 3165.369407][   T73]      netlink_unicast+0x449/0x710
[ 3165.369407][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3165.369407][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3165.369407][   T73]      ___sys_sendmsg+0xee/0x170
[ 3165.369407][   T73]      __sys_sendmsg+0xcd/0x170
[ 3165.369407][   T73]      do_syscall_64+0xc6/0x1e0
[ 3165.369407][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3165.369407][   T73] 
[ 3165.371450][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3165.371450][   T73]      netdev_get_by_index+0x5e/0x80
[ 3165.371450][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3165.371450][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3165.371450][   T73]      ip6_route_add+0x1c/0x140
[ 3165.371450][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3165.371450][   T73]      addrconf_add_dev+0xe2/0x170
[ 3165.371450][   T73]      inet6_addr_add+0x12f/0xa40
[ 3165.371450][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3165.371450][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3165.371450][   T73]      netlink_rcv_skb+0x130/0x360
[ 3165.371450][   T73]      netlink_unicast+0x449/0x710
[ 3165.371450][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3165.371450][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3165.371450][   T73]      ___sys_sendmsg+0xee/0x170
[ 3165.371450][   T73]      __sys_sendmsg+0xcd/0x170
[ 3165.371450][   T73]      do_syscall_64+0xc6/0x1e0
[ 3165.371450][   T73] 
[ 3165.373436][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3165.373436][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3165.373436][   T73]      ipv6_find_idev+0x102/0x170
[ 3165.373436][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3165.373436][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3165.373436][   T73]      netlink_rcv_skb+0x130/0x360
[ 3165.373436][   T73]      netlink_unicast+0x449/0x710
[ 3165.373436][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3165.373436][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3165.373436][   T73]      ___sys_sendmsg+0xee/0x170
[ 3165.373436][   T73]      __sys_sendmsg+0xcd/0x170
[ 3165.373436][   T73]      do_syscall_64+0xc6/0x1e0
[ 3165.373436][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3165.373436][   T73] 
[ 3165.374985][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3165.374985][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3165.374985][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3165.374985][   T73]      ipv6_find_idev+0x102/0x170
[ 3165.374985][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3165.374985][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3165.374985][   T73]      netlink_rcv_skb+0x130/0x360
[ 3165.374985][   T73]      netlink_unicast+0x449/0x710
[ 3165.374985][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3165.374985][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3165.374985][   T73]      ___sys_sendmsg+0xee/0x170
[ 3165.374985][   T73]      __sys_sendmsg+0xcd/0x170
[ 3165.374985][   T73]      do_syscall_64+0xc6/0x1e0
[ 3165.374985][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3165.374985][   T73] 
[ 3165.376692][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3165.376972][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3165.376972][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3165.376972][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3165.376972][   T73]      fib6_nh_init+0xa22/0x1580
[ 3165.376972][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3165.376972][   T73]      ip6_route_add+0x1c/0x140
[ 3165.376972][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3165.376972][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3165.376972][   T73]      netlink_rcv_skb+0x130/0x360
[ 3165.376972][   T73]      netlink_unicast+0x449/0x710
[ 3165.376972][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3165.376972][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3165.376972][   T73]      ___sys_sendmsg+0xee/0x170
[ 3165.376972][   T73]      __sys_sendmsg+0xcd/0x170
[ 3165.376972][   T73]      do_syscall_64+0xc6/0x1e0
[ 3165.376972][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3165.376972][   T73] 
[ 3165.379057][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3165.379057][   T73]      dst_init+0x84/0x4a0
[ 3165.379057][   T73]      dst_alloc+0x97/0x150
[ 3165.379057][   T73]      ip6_dst_alloc+0x23/0x90
[ 3165.379057][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3165.379057][   T73]      ip6_pol_route+0x56f/0x840
[ 3165.379057][   T73]      fib6_rule_lookup+0x456/0x630
[ 3165.379057][   T73]      ip6_route_input+0x59c/0xa50
[ 3165.379057][   T73]      ipv6_rcv+0x397/0x810
[ 3165.379057][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3165.379057][   T73]      process_backlog+0x101/0x620
[ 3165.379057][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3165.379057][   T73]      net_rx_action+0x495/0xbe0
[ 3165.379057][   T73]      __do_softirq+0x1b5/0x7f6
[ 3165.379057][   T73] 
[ 3165.380955][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3165.380955][   T73]      netdev_get_by_index+0x5e/0x80
[ 3165.380955][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3165.380955][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3165.380955][   T73]      ip6_route_add+0x1c/0x140
[ 3165.380955][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3165.380955][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3165.380955][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3165.380955][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3165.380955][   T73]      netlink_rcv_skb+0x130/0x360
[ 3165.380955][   T73]      netlink_unicast+0x449/0x710
[ 3165.380955][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3165.380955][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3165.380955][   T73]      ___sys_sendmsg+0xee/0x170
[ 3165.380955][   T73]      __sys_sendmsg+0xcd/0x170
[ 3165.380955][   T73]      do_syscall_64+0xc6/0x1e0
[ 3165.380955][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3165.380955][   T73] 
[ 3165.383242][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3165.383242][   T73]      netdev_get_by_index+0x5e/0x80
[ 3165.383242][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3165.383242][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3165.383242][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3165.383242][   T73]      ipv6_add_addr+0x411/0x2000
[ 3165.383242][   T73]      inet6_addr_add+0x30e/0xa40
[ 3165.383242][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3165.383242][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3165.383242][   T73]      netlink_rcv_skb+0x130/0x360
[ 3165.383242][   T73]      netlink_unicast+0x449/0x710
[ 3165.383242][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3165.383242][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3165.383242][   T73]      ___sys_sendmsg+0xee/0x170
[ 3165.383242][   T73]      __sys_sendmsg+0xcd/0x170
[ 3165.383242][   T73]      do_syscall_64+0xc6/0x1e0
[ 3165.383242][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3165.383242][   T73] 
[ 3165.385500][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3165.385500][   T73]      netdev_get_by_index+0x5e/0x80
[ 3165.385500][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3165.385500][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3165.385500][   T73]      ip6_route_add+0x1c/0x140
[ 3165.385500][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3165.385500][   T73]      addrconf_add_dev+0xe2/0x170
[ 3165.385500][   T73]      inet6_addr_add+0x12f/0xa40
[ 3165.385500][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3165.385500][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3165.385500][   T73]      netlink_rcv_skb+0x130/0x360
[ 3165.385500][   T73]      netlink_unicast+0x449/0x710
[ 3165.385500][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3165.385500][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3165.385500][   T73]      ___sys_sendmsg+0xee/0x170
[ 3165.385500][   T73]      __sys_sendmsg+0xcd/0x170
[ 3165.385500][   T73]      do_syscall_64+0xc6/0x1e0
[ 3165.385500][   T73] 
[ 3165.387666][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3165.387666][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3165.387666][   T73]      ipv6_find_idev+0x102/0x170
[ 3165.387666][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3165.387666][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3165.387666][   T73]      netlink_rcv_skb+0x130/0x360
[ 3165.387666][   T73]      netlink_unicast+0x449/0x710
[ 3165.387666][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3165.387666][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3165.387666][   T73]      ___sys_sendmsg+0xee/0x170
[ 3165.387666][   T73]      __sys_sendmsg+0xcd/0x170
[ 3165.387666][   T73]      do_syscall_64+0xc6/0x1e0
[ 3165.387666][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3165.387666][   T73] 
[ 3165.389455][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3165.389455][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3165.389455][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3165.389455][   T73]      ipv6_find_idev+0x102/0x170
[ 3165.389455][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3165.389455][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3165.389455][   T73]      netlink_rcv_skb+0x130/0x360
[ 3165.389455][   T73]      netlink_unicast+0x449/0x710
[ 3165.389455][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3165.389455][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3165.389455][   T73]      ___sys_sendmsg+0xee/0x170
[ 3165.389455][   T73]      __sys_sendmsg+0xcd/0x170
[ 3165.389455][   T73]      do_syscall_64+0xc6/0x1e0
[ 3165.389455][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3165.389455][   T73] 
[ 3165.391446][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3165.392172][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3165.392172][   T73]      netdev_get_by_index+0x5e/0x80
[ 3165.392172][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3165.392172][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3165.392172][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3165.392172][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3165.392172][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3165.392172][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3165.392172][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3165.392172][   T73]      addrconf_dad_begin+0x310/0x670
[ 3165.392172][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3165.392172][   T73]      process_one_work+0x84d/0x18a0
[ 3165.392172][   T73]      worker_thread+0x587/0xd30
[ 3165.392172][   T73]      kthread+0x28a/0x350
[ 3165.392172][   T73]      ret_from_fork+0x31/0x70
[ 3165.392172][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3165.392172][   T73] 
[ 3165.394106][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3165.394106][   T73]      netdev_get_by_index+0x5e/0x80
[ 3165.394106][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3165.394106][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3165.394106][   T73]      ip6_route_add+0x1c/0x140
[ 3165.394106][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3165.394106][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3165.394106][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3165.394106][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3165.394106][   T73]      netlink_rcv_skb+0x130/0x360
[ 3165.394106][   T73]      netlink_unicast+0x449/0x710
[ 3165.394106][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3165.394106][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3165.394106][   T73]      ___sys_sendmsg+0xee/0x170
[ 3165.394106][   T73]      __sys_sendmsg+0xcd/0x170
[ 3165.394106][   T73]      do_syscall_64+0xc6/0x1e0
[ 3165.394106][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3165.394106][   T73] 
[ 3165.396240][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3165.396240][   T73]      netdev_get_by_index+0x5e/0x80
[ 3165.396240][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3165.396240][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3165.396240][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3165.396240][   T73]      ipv6_add_addr+0x411/0x2000
[ 3165.396240][   T73]      inet6_addr_add+0x30e/0xa40
[ 3165.396240][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3165.396240][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3165.396240][   T73]      netlink_rcv_skb+0x130/0x360
[ 3165.396240][   T73]      netlink_unicast+0x449/0x710
[ 3165.396240][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3165.396240][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3165.396240][   T73]      ___sys_sendmsg+0xee/0x170
[ 3165.396240][   T73]      __sys_sendmsg+0xcd/0x170
[ 3165.396240][   T73]      do_syscall_64+0xc6/0x1e0
[ 3165.396240][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3165.396240][   T73] 
[ 3165.398523][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3165.398523][   T73]      netdev_get_by_index+0x5e/0x80
[ 3165.398523][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3165.398523][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3165.398523][   T73]      ip6_route_add+0x1c/0x140
[ 3165.398523][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3165.398523][   T73]      addrconf_add_dev+0xe2/0x170
[ 3165.398523][   T73]      inet6_addr_add+0x12f/0xa40
[ 3165.398523][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3165.398523][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3165.398523][   T73]      netlink_rcv_skb+0x130/0x360
[ 3165.398523][   T73]      netlink_unicast+0x449/0x710
[ 3165.398523][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3165.398523][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3165.398523][   T73]      ___sys_sendmsg+0xee/0x170
[ 3165.398523][   T73]      __sys_sendmsg+0xcd/0x170
[ 3165.398523][   T73]      do_syscall_64+0xc6/0x1e0
[ 3165.398523][   T73] 
[ 3165.400705][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3165.400705][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3165.400705][   T73]      ipv6_find_idev+0x102/0x170
[ 3165.400705][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3165.400705][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3165.400705][   T73]      netlink_rcv_skb+0x130/0x360
[ 3165.400705][   T73]      netlink_unicast+0x449/0x710
[ 3165.400705][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3165.400705][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3165.400705][   T73]      ___sys_sendmsg+0xee/0x170
[ 3165.400705][   T73]      __sys_sendmsg+0xcd/0x170
[ 3165.400705][   T73]      do_syscall_64+0xc6/0x1e0
[ 3165.400705][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3165.400705][   T73] 
[ 3165.402500][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3165.402500][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3165.402500][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3165.402500][   T73]      ipv6_find_idev+0x102/0x170
[ 3165.402500][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3165.402500][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3165.402500][   T73]      netlink_rcv_skb+0x130/0x360
[ 3165.402500][   T73]      netlink_unicast+0x449/0x710
[ 3165.402500][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3165.402500][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3165.402500][   T73]      ___sys_sendmsg+0xee/0x170
[ 3165.402500][   T73]      __sys_sendmsg+0xcd/0x170
[ 3165.402500][   T73]      do_syscall_64+0xc6/0x1e0
[ 3165.402500][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3165.402500][   T73] 
[ 3175.479731][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3175.480241][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3175.480241][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3175.480241][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3175.480241][   T73]      fib6_nh_init+0xa22/0x1580
[ 3175.480241][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3175.480241][   T73]      ip6_route_add+0x1c/0x140
[ 3175.480241][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3175.480241][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3175.480241][   T73]      netlink_rcv_skb+0x130/0x360
[ 3175.480241][   T73]      netlink_unicast+0x449/0x710
[ 3175.480241][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3175.480241][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3175.480241][   T73]      ___sys_sendmsg+0xee/0x170
[ 3175.480241][   T73]      __sys_sendmsg+0xcd/0x170
[ 3175.480241][   T73]      do_syscall_64+0xc6/0x1e0
[ 3175.480241][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3175.480241][   T73] 
[ 3175.482155][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3175.482155][   T73]      dst_init+0x84/0x4a0
[ 3175.482155][   T73]      dst_alloc+0x97/0x150
[ 3175.482155][   T73]      ip6_dst_alloc+0x23/0x90
[ 3175.482155][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3175.482155][   T73]      ip6_pol_route+0x56f/0x840
[ 3175.482155][   T73]      fib6_rule_lookup+0x456/0x630
[ 3175.482155][   T73]      ip6_route_input+0x59c/0xa50
[ 3175.482155][   T73]      ipv6_rcv+0x397/0x810
[ 3175.482155][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3175.482155][   T73]      process_backlog+0x101/0x620
[ 3175.482155][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3175.482155][   T73]      net_rx_action+0x495/0xbe0
[ 3175.482155][   T73]      __do_softirq+0x1b5/0x7f6
[ 3175.482155][   T73] 
[ 3175.483801][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3175.483801][   T73]      netdev_get_by_index+0x5e/0x80
[ 3175.483801][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3175.483801][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3175.483801][   T73]      ip6_route_add+0x1c/0x140
[ 3175.483801][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3175.483801][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3175.483801][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3175.483801][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3175.483801][   T73]      netlink_rcv_skb+0x130/0x360
[ 3175.483801][   T73]      netlink_unicast+0x449/0x710
[ 3175.483801][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3175.483801][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3175.483801][   T73]      ___sys_sendmsg+0xee/0x170
[ 3175.483801][   T73]      __sys_sendmsg+0xcd/0x170
[ 3175.483801][   T73]      do_syscall_64+0xc6/0x1e0
[ 3175.483801][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3175.483801][   T73] 
[ 3175.485842][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3175.485842][   T73]      netdev_get_by_index+0x5e/0x80
[ 3175.485842][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3175.485842][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3175.485842][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3175.485842][   T73]      ipv6_add_addr+0x411/0x2000
[ 3175.485842][   T73]      inet6_addr_add+0x30e/0xa40
[ 3175.485842][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3175.485842][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3175.485842][   T73]      netlink_rcv_skb+0x130/0x360
[ 3175.485842][   T73]      netlink_unicast+0x449/0x710
[ 3175.485842][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3175.485842][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3175.485842][   T73]      ___sys_sendmsg+0xee/0x170
[ 3175.485842][   T73]      __sys_sendmsg+0xcd/0x170
[ 3175.485842][   T73]      do_syscall_64+0xc6/0x1e0
[ 3175.485842][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3175.485842][   T73] 
[ 3175.487854][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3175.487854][   T73]      netdev_get_by_index+0x5e/0x80
[ 3175.487854][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3175.487854][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3175.487854][   T73]      ip6_route_add+0x1c/0x140
[ 3175.487854][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3175.487854][   T73]      addrconf_add_dev+0xe2/0x170
[ 3175.487854][   T73]      inet6_addr_add+0x12f/0xa40
[ 3175.487854][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3175.487854][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3175.487854][   T73]      netlink_rcv_skb+0x130/0x360
[ 3175.487854][   T73]      netlink_unicast+0x449/0x710
[ 3175.487854][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3175.487854][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3175.487854][   T73]      ___sys_sendmsg+0xee/0x170
[ 3175.487854][   T73]      __sys_sendmsg+0xcd/0x170
[ 3175.487854][   T73]      do_syscall_64+0xc6/0x1e0
[ 3175.487854][   T73] 
[ 3175.489837][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3175.489837][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3175.489837][   T73]      ipv6_find_idev+0x102/0x170
[ 3175.489837][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3175.489837][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3175.489837][   T73]      netlink_rcv_skb+0x130/0x360
[ 3175.489837][   T73]      netlink_unicast+0x449/0x710
[ 3175.489837][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3175.489837][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3175.489837][   T73]      ___sys_sendmsg+0xee/0x170
[ 3175.489837][   T73]      __sys_sendmsg+0xcd/0x170
[ 3175.489837][   T73]      do_syscall_64+0xc6/0x1e0
[ 3175.489837][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3175.489837][   T73] 
[ 3175.491394][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3175.491394][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3175.491394][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3175.491394][   T73]      ipv6_find_idev+0x102/0x170
[ 3175.491394][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3175.491394][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3175.491394][   T73]      netlink_rcv_skb+0x130/0x360
[ 3175.491394][   T73]      netlink_unicast+0x449/0x710
[ 3175.491394][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3175.491394][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3175.491394][   T73]      ___sys_sendmsg+0xee/0x170
[ 3175.491394][   T73]      __sys_sendmsg+0xcd/0x170
[ 3175.491394][   T73]      do_syscall_64+0xc6/0x1e0
[ 3175.491394][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3175.491394][   T73] 
[ 3175.493286][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3175.493593][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3175.493593][   T73]      netdev_get_by_index+0x5e/0x80
[ 3175.493593][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3175.493593][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3175.493593][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3175.493593][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3175.493593][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3175.493593][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3175.493593][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3175.493593][   T73]      addrconf_dad_begin+0x310/0x670
[ 3175.493593][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3175.493593][   T73]      process_one_work+0x84d/0x18a0
[ 3175.493593][   T73]      worker_thread+0x587/0xd30
[ 3175.493593][   T73]      kthread+0x28a/0x350
[ 3175.493593][   T73]      ret_from_fork+0x31/0x70
[ 3175.493593][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3175.493593][   T73] 
[ 3175.495709][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3175.495709][   T73]      netdev_get_by_index+0x5e/0x80
[ 3175.495709][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3175.495709][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3175.495709][   T73]      ip6_route_add+0x1c/0x140
[ 3175.495709][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3175.495709][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3175.495709][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3175.495709][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3175.495709][   T73]      netlink_rcv_skb+0x130/0x360
[ 3175.495709][   T73]      netlink_unicast+0x449/0x710
[ 3175.495709][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3175.495709][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3175.495709][   T73]      ___sys_sendmsg+0xee/0x170
[ 3175.495709][   T73]      __sys_sendmsg+0xcd/0x170
[ 3175.495709][   T73]      do_syscall_64+0xc6/0x1e0
[ 3175.495709][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3175.495709][   T73] 
[ 3175.497927][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3175.497927][   T73]      netdev_get_by_index+0x5e/0x80
[ 3175.497927][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3175.497927][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3175.497927][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3175.497927][   T73]      ipv6_add_addr+0x411/0x2000
[ 3175.497927][   T73]      inet6_addr_add+0x30e/0xa40
[ 3175.497927][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3175.497927][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3175.497927][   T73]      netlink_rcv_skb+0x130/0x360
[ 3175.497927][   T73]      netlink_unicast+0x449/0x710
[ 3175.497927][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3175.497927][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3175.497927][   T73]      ___sys_sendmsg+0xee/0x170
[ 3175.497927][   T73]      __sys_sendmsg+0xcd/0x170
[ 3175.497927][   T73]      do_syscall_64+0xc6/0x1e0
[ 3175.497927][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3175.497927][   T73] 
[ 3175.500156][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3175.500156][   T73]      netdev_get_by_index+0x5e/0x80
[ 3175.500156][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3175.500156][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3175.500156][   T73]      ip6_route_add+0x1c/0x140
[ 3175.500156][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3175.500156][   T73]      addrconf_add_dev+0xe2/0x170
[ 3175.500156][   T73]      inet6_addr_add+0x12f/0xa40
[ 3175.500156][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3175.500156][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3175.500156][   T73]      netlink_rcv_skb+0x130/0x360
[ 3175.500156][   T73]      netlink_unicast+0x449/0x710
[ 3175.500156][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3175.500156][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3175.500156][   T73]      ___sys_sendmsg+0xee/0x170
[ 3175.500156][   T73]      __sys_sendmsg+0xcd/0x170
[ 3175.500156][   T73]      do_syscall_64+0xc6/0x1e0
[ 3175.500156][   T73] 
[ 3175.502332][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3175.502332][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3175.502332][   T73]      ipv6_find_idev+0x102/0x170
[ 3175.502332][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3175.502332][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3175.502332][   T73]      netlink_rcv_skb+0x130/0x360
[ 3175.502332][   T73]      netlink_unicast+0x449/0x710
[ 3175.502332][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3175.502332][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3175.502332][   T73]      ___sys_sendmsg+0xee/0x170
[ 3175.502332][   T73]      __sys_sendmsg+0xcd/0x170
[ 3175.502332][   T73]      do_syscall_64+0xc6/0x1e0
[ 3175.502332][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3175.502332][   T73] 
[ 3175.504036][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3175.504036][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3175.504036][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3175.504036][   T73]      ipv6_find_idev+0x102/0x170
[ 3175.504036][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3175.504036][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3175.504036][   T73]      netlink_rcv_skb+0x130/0x360
[ 3175.504036][   T73]      netlink_unicast+0x449/0x710
[ 3175.504036][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3175.504036][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3175.504036][   T73]      ___sys_sendmsg+0xee/0x170
[ 3175.504036][   T73]      __sys_sendmsg+0xcd/0x170
[ 3175.504036][   T73]      do_syscall_64+0xc6/0x1e0
[ 3175.504036][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3175.504036][   T73] 
[ 3175.505899][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3175.506194][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3175.506194][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3175.506194][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3175.506194][   T73]      fib6_nh_init+0xa22/0x1580
[ 3175.506194][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3175.506194][   T73]      ip6_route_add+0x1c/0x140
[ 3175.506194][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3175.506194][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3175.506194][   T73]      netlink_rcv_skb+0x130/0x360
[ 3175.506194][   T73]      netlink_unicast+0x449/0x710
[ 3175.506194][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3175.506194][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3175.506194][   T73]      ___sys_sendmsg+0xee/0x170
[ 3175.506194][   T73]      __sys_sendmsg+0xcd/0x170
[ 3175.506194][   T73]      do_syscall_64+0xc6/0x1e0
[ 3175.506194][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3175.506194][   T73] 
[ 3175.508391][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3175.508391][   T73]      dst_init+0x84/0x4a0
[ 3175.508391][   T73]      dst_alloc+0x97/0x150
[ 3175.508391][   T73]      ip6_dst_alloc+0x23/0x90
[ 3175.508391][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3175.508391][   T73]      ip6_pol_route+0x56f/0x840
[ 3175.508391][   T73]      fib6_rule_lookup+0x456/0x630
[ 3175.508391][   T73]      ip6_route_input+0x59c/0xa50
[ 3175.508391][   T73]      ipv6_rcv+0x397/0x810
[ 3175.508391][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3175.508391][   T73]      process_backlog+0x101/0x620
[ 3175.508391][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3175.508391][   T73]      net_rx_action+0x495/0xbe0
[ 3175.508391][   T73]      __do_softirq+0x1b5/0x7f6
[ 3175.508391][   T73] 
[ 3175.510320][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3175.510320][   T73]      netdev_get_by_index+0x5e/0x80
[ 3175.510320][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3175.510320][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3175.510320][   T73]      ip6_route_add+0x1c/0x140
[ 3175.510320][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3175.510320][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3175.510320][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3175.510320][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3175.510320][   T73]      netlink_rcv_skb+0x130/0x360
[ 3175.510320][   T73]      netlink_unicast+0x449/0x710
[ 3175.510320][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3175.510320][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3175.510320][   T73]      ___sys_sendmsg+0xee/0x170
[ 3175.510320][   T73]      __sys_sendmsg+0xcd/0x170
[ 3175.510320][   T73]      do_syscall_64+0xc6/0x1e0
[ 3175.510320][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3175.510320][   T73] 
[ 3175.512634][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3175.512634][   T73]      netdev_get_by_index+0x5e/0x80
[ 3175.512634][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3175.512634][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3175.512634][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3175.512634][   T73]      ipv6_add_addr+0x411/0x2000
[ 3175.512634][   T73]      inet6_addr_add+0x30e/0xa40
[ 3175.512634][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3175.512634][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3175.512634][   T73]      netlink_rcv_skb+0x130/0x360
[ 3175.512634][   T73]      netlink_unicast+0x449/0x710
[ 3175.512634][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3175.512634][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3175.512634][   T73]      ___sys_sendmsg+0xee/0x170
[ 3175.512634][   T73]      __sys_sendmsg+0xcd/0x170
[ 3175.512634][   T73]      do_syscall_64+0xc6/0x1e0
[ 3175.512634][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3175.512634][   T73] 
[ 3175.514972][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3175.514972][   T73]      netdev_get_by_index+0x5e/0x80
[ 3175.514972][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3175.514972][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3175.514972][   T73]      ip6_route_add+0x1c/0x140
[ 3175.514972][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3175.514972][   T73]      addrconf_add_dev+0xe2/0x170
[ 3175.514972][   T73]      inet6_addr_add+0x12f/0xa40
[ 3175.514972][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3175.514972][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3175.514972][   T73]      netlink_rcv_skb+0x130/0x360
[ 3175.514972][   T73]      netlink_unicast+0x449/0x710
[ 3175.514972][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3175.514972][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3175.514972][   T73]      ___sys_sendmsg+0xee/0x170
[ 3175.514972][   T73]      __sys_sendmsg+0xcd/0x170
[ 3175.514972][   T73]      do_syscall_64+0xc6/0x1e0
[ 3175.514972][   T73] 
[ 3175.517083][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3175.517083][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3175.517083][   T73]      ipv6_find_idev+0x102/0x170
[ 3175.517083][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3175.517083][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3175.517083][   T73]      netlink_rcv_skb+0x130/0x360
[ 3175.517083][   T73]      netlink_unicast+0x449/0x710
[ 3175.517083][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3175.517083][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3175.517083][   T73]      ___sys_sendmsg+0xee/0x170
[ 3175.517083][   T73]      __sys_sendmsg+0xcd/0x170
[ 3175.517083][   T73]      do_syscall_64+0xc6/0x1e0
[ 3175.517083][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3175.517083][   T73] 
[ 3175.518848][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3175.518848][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3175.518848][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3175.518848][   T73]      ipv6_find_idev+0x102/0x170
[ 3175.518848][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3175.518848][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3175.518848][   T73]      netlink_rcv_skb+0x130/0x360
[ 3175.518848][   T73]      netlink_unicast+0x449/0x710
[ 3175.518848][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3175.518848][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3175.518848][   T73]      ___sys_sendmsg+0xee/0x170
[ 3175.518848][   T73]      __sys_sendmsg+0xcd/0x170
[ 3175.518848][   T73]      do_syscall_64+0xc6/0x1e0
[ 3175.518848][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3175.518848][   T73] 
[ 3175.520698][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3175.520973][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3175.520973][   T73]      netdev_get_by_index+0x5e/0x80
[ 3175.520973][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3175.520973][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3175.520973][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3175.520973][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3175.520973][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3175.520973][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3175.520973][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3175.520973][   T73]      addrconf_dad_begin+0x310/0x670
[ 3175.520973][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3175.520973][   T73]      process_one_work+0x84d/0x18a0
[ 3175.520973][   T73]      worker_thread+0x587/0xd30
[ 3175.520973][   T73]      kthread+0x28a/0x350
[ 3175.520973][   T73]      ret_from_fork+0x31/0x70
[ 3175.520973][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3175.520973][   T73] 
[ 3175.523037][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3175.523037][   T73]      netdev_get_by_index+0x5e/0x80
[ 3175.523037][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3175.523037][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3175.523037][   T73]      ip6_route_add+0x1c/0x140
[ 3175.523037][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3175.523037][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3175.523037][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3175.523037][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3175.523037][   T73]      netlink_rcv_skb+0x130/0x360
[ 3175.523037][   T73]      netlink_unicast+0x449/0x710
[ 3175.523037][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3175.523037][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3175.523037][   T73]      ___sys_sendmsg+0xee/0x170
[ 3175.523037][   T73]      __sys_sendmsg+0xcd/0x170
[ 3175.523037][   T73]      do_syscall_64+0xc6/0x1e0
[ 3175.523037][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3175.523037][   T73] 
[ 3175.525589][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3175.525589][   T73]      netdev_get_by_index+0x5e/0x80
[ 3175.525589][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3175.525589][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3175.525589][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3175.525589][   T73]      ipv6_add_addr+0x411/0x2000
[ 3175.525589][   T73]      inet6_addr_add+0x30e/0xa40
[ 3175.525589][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3175.525589][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3175.525589][   T73]      netlink_rcv_skb+0x130/0x360
[ 3175.525589][   T73]      netlink_unicast+0x449/0x710
[ 3175.525589][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3175.525589][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3175.525589][   T73]      ___sys_sendmsg+0xee/0x170
[ 3175.525589][   T73]      __sys_sendmsg+0xcd/0x170
[ 3175.525589][   T73]      do_syscall_64+0xc6/0x1e0
[ 3175.525589][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3175.525589][   T73] 
[ 3175.527695][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3175.527695][   T73]      netdev_get_by_index+0x5e/0x80
[ 3175.527695][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3175.527695][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3175.527695][   T73]      ip6_route_add+0x1c/0x140
[ 3175.527695][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3175.527695][   T73]      addrconf_add_dev+0xe2/0x170
[ 3175.527695][   T73]      inet6_addr_add+0x12f/0xa40
[ 3175.527695][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3175.527695][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3175.527695][   T73]      netlink_rcv_skb+0x130/0x360
[ 3175.527695][   T73]      netlink_unicast+0x449/0x710
[ 3175.527695][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3175.527695][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3175.527695][   T73]      ___sys_sendmsg+0xee/0x170
[ 3175.527695][   T73]      __sys_sendmsg+0xcd/0x170
[ 3175.527695][   T73]      do_syscall_64+0xc6/0x1e0
[ 3175.527695][   T73] 
[ 3175.529893][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3175.529893][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3175.529893][   T73]      ipv6_find_idev+0x102/0x170
[ 3175.529893][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3175.529893][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3175.529893][   T73]      netlink_rcv_skb+0x130/0x360
[ 3175.529893][   T73]      netlink_unicast+0x449/0x710
[ 3175.529893][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3175.529893][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3175.529893][   T73]      ___sys_sendmsg+0xee/0x170
[ 3175.529893][   T73]      __sys_sendmsg+0xcd/0x170
[ 3175.529893][   T73]      do_syscall_64+0xc6/0x1e0
[ 3175.529893][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3175.529893][   T73] 
[ 3175.531590][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3175.531590][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3175.531590][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3175.531590][   T73]      ipv6_find_idev+0x102/0x170
[ 3175.531590][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3175.531590][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3175.531590][   T73]      netlink_rcv_skb+0x130/0x360
[ 3175.531590][   T73]      netlink_unicast+0x449/0x710
[ 3175.531590][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3175.531590][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3175.531590][   T73]      ___sys_sendmsg+0xee/0x170
[ 3175.531590][   T73]      __sys_sendmsg+0xcd/0x170
[ 3175.531590][   T73]      do_syscall_64+0xc6/0x1e0
[ 3175.531590][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3175.531590][   T73] 
[ 3185.655785][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3185.656295][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3185.656295][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3185.656295][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3185.656295][   T73]      fib6_nh_init+0xa22/0x1580
[ 3185.656295][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3185.656295][   T73]      ip6_route_add+0x1c/0x140
[ 3185.656295][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3185.656295][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3185.656295][   T73]      netlink_rcv_skb+0x130/0x360
[ 3185.656295][   T73]      netlink_unicast+0x449/0x710
[ 3185.656295][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3185.656295][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3185.656295][   T73]      ___sys_sendmsg+0xee/0x170
[ 3185.656295][   T73]      __sys_sendmsg+0xcd/0x170
[ 3185.656295][   T73]      do_syscall_64+0xc6/0x1e0
[ 3185.656295][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3185.656295][   T73] 
[ 3185.658219][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3185.658219][   T73]      dst_init+0x84/0x4a0
[ 3185.658219][   T73]      dst_alloc+0x97/0x150
[ 3185.658219][   T73]      ip6_dst_alloc+0x23/0x90
[ 3185.658219][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3185.658219][   T73]      ip6_pol_route+0x56f/0x840
[ 3185.658219][   T73]      fib6_rule_lookup+0x456/0x630
[ 3185.658219][   T73]      ip6_route_input+0x59c/0xa50
[ 3185.658219][   T73]      ipv6_rcv+0x397/0x810
[ 3185.658219][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3185.658219][   T73]      process_backlog+0x101/0x620
[ 3185.658219][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3185.658219][   T73]      net_rx_action+0x495/0xbe0
[ 3185.658219][   T73]      __do_softirq+0x1b5/0x7f6
[ 3185.658219][   T73] 
[ 3185.659891][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3185.659891][   T73]      netdev_get_by_index+0x5e/0x80
[ 3185.659891][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3185.659891][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3185.659891][   T73]      ip6_route_add+0x1c/0x140
[ 3185.659891][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3185.659891][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3185.659891][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3185.659891][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3185.659891][   T73]      netlink_rcv_skb+0x130/0x360
[ 3185.659891][   T73]      netlink_unicast+0x449/0x710
[ 3185.659891][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3185.659891][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3185.659891][   T73]      ___sys_sendmsg+0xee/0x170
[ 3185.659891][   T73]      __sys_sendmsg+0xcd/0x170
[ 3185.659891][   T73]      do_syscall_64+0xc6/0x1e0
[ 3185.659891][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3185.659891][   T73] 
[ 3185.661912][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3185.661912][   T73]      netdev_get_by_index+0x5e/0x80
[ 3185.661912][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3185.661912][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3185.661912][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3185.661912][   T73]      ipv6_add_addr+0x411/0x2000
[ 3185.661912][   T73]      inet6_addr_add+0x30e/0xa40
[ 3185.661912][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3185.661912][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3185.661912][   T73]      netlink_rcv_skb+0x130/0x360
[ 3185.661912][   T73]      netlink_unicast+0x449/0x710
[ 3185.661912][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3185.661912][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3185.661912][   T73]      ___sys_sendmsg+0xee/0x170
[ 3185.661912][   T73]      __sys_sendmsg+0xcd/0x170
[ 3185.661912][   T73]      do_syscall_64+0xc6/0x1e0
[ 3185.661912][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3185.661912][   T73] 
[ 3185.663923][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3185.663923][   T73]      netdev_get_by_index+0x5e/0x80
[ 3185.663923][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3185.663923][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3185.663923][   T73]      ip6_route_add+0x1c/0x140
[ 3185.663923][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3185.663923][   T73]      addrconf_add_dev+0xe2/0x170
[ 3185.663923][   T73]      inet6_addr_add+0x12f/0xa40
[ 3185.663923][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3185.663923][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3185.663923][   T73]      netlink_rcv_skb+0x130/0x360
[ 3185.663923][   T73]      netlink_unicast+0x449/0x710
[ 3185.663923][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3185.663923][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3185.663923][   T73]      ___sys_sendmsg+0xee/0x170
[ 3185.663923][   T73]      __sys_sendmsg+0xcd/0x170
[ 3185.663923][   T73]      do_syscall_64+0xc6/0x1e0
[ 3185.663923][   T73] 
[ 3185.665905][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3185.665905][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3185.665905][   T73]      ipv6_find_idev+0x102/0x170
[ 3185.665905][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3185.665905][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3185.665905][   T73]      netlink_rcv_skb+0x130/0x360
[ 3185.665905][   T73]      netlink_unicast+0x449/0x710
[ 3185.665905][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3185.665905][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3185.665905][   T73]      ___sys_sendmsg+0xee/0x170
[ 3185.665905][   T73]      __sys_sendmsg+0xcd/0x170
[ 3185.665905][   T73]      do_syscall_64+0xc6/0x1e0
[ 3185.665905][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3185.665905][   T73] 
[ 3185.667483][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3185.667483][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3185.667483][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3185.667483][   T73]      ipv6_find_idev+0x102/0x170
[ 3185.667483][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3185.667483][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3185.667483][   T73]      netlink_rcv_skb+0x130/0x360
[ 3185.667483][   T73]      netlink_unicast+0x449/0x710
[ 3185.667483][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3185.667483][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3185.667483][   T73]      ___sys_sendmsg+0xee/0x170
[ 3185.667483][   T73]      __sys_sendmsg+0xcd/0x170
[ 3185.667483][   T73]      do_syscall_64+0xc6/0x1e0
[ 3185.667483][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3185.667483][   T73] 
[ 3185.669211][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3185.669500][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3185.669500][   T73]      netdev_get_by_index+0x5e/0x80
[ 3185.669500][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3185.669500][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3185.669500][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3185.669500][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3185.669500][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3185.669500][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3185.669500][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3185.669500][   T73]      addrconf_dad_begin+0x310/0x670
[ 3185.669500][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3185.669500][   T73]      process_one_work+0x84d/0x18a0
[ 3185.669500][   T73]      worker_thread+0x587/0xd30
[ 3185.669500][   T73]      kthread+0x28a/0x350
[ 3185.669500][   T73]      ret_from_fork+0x31/0x70
[ 3185.669500][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3185.669500][   T73] 
[ 3185.671569][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3185.671569][   T73]      netdev_get_by_index+0x5e/0x80
[ 3185.671569][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3185.671569][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3185.671569][   T73]      ip6_route_add+0x1c/0x140
[ 3185.671569][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3185.671569][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3185.671569][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3185.671569][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3185.671569][   T73]      netlink_rcv_skb+0x130/0x360
[ 3185.671569][   T73]      netlink_unicast+0x449/0x710
[ 3185.671569][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3185.671569][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3185.671569][   T73]      ___sys_sendmsg+0xee/0x170
[ 3185.671569][   T73]      __sys_sendmsg+0xcd/0x170
[ 3185.671569][   T73]      do_syscall_64+0xc6/0x1e0
[ 3185.671569][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3185.671569][   T73] 
[ 3185.673974][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3185.673974][   T73]      netdev_get_by_index+0x5e/0x80
[ 3185.673974][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3185.673974][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3185.673974][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3185.673974][   T73]      ipv6_add_addr+0x411/0x2000
[ 3185.673974][   T73]      inet6_addr_add+0x30e/0xa40
[ 3185.673974][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3185.673974][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3185.673974][   T73]      netlink_rcv_skb+0x130/0x360
[ 3185.673974][   T73]      netlink_unicast+0x449/0x710
[ 3185.673974][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3185.673974][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3185.673974][   T73]      ___sys_sendmsg+0xee/0x170
[ 3185.673974][   T73]      __sys_sendmsg+0xcd/0x170
[ 3185.673974][   T73]      do_syscall_64+0xc6/0x1e0
[ 3185.673974][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3185.673974][   T73] 
[ 3185.675994][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3185.675994][   T73]      netdev_get_by_index+0x5e/0x80
[ 3185.675994][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3185.675994][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3185.675994][   T73]      ip6_route_add+0x1c/0x140
[ 3185.675994][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3185.675994][   T73]      addrconf_add_dev+0xe2/0x170
[ 3185.675994][   T73]      inet6_addr_add+0x12f/0xa40
[ 3185.675994][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3185.675994][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3185.675994][   T73]      netlink_rcv_skb+0x130/0x360
[ 3185.675994][   T73]      netlink_unicast+0x449/0x710
[ 3185.675994][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3185.675994][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3185.675994][   T73]      ___sys_sendmsg+0xee/0x170
[ 3185.675994][   T73]      __sys_sendmsg+0xcd/0x170
[ 3185.675994][   T73]      do_syscall_64+0xc6/0x1e0
[ 3185.675994][   T73] 
[ 3185.677982][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3185.677982][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3185.677982][   T73]      ipv6_find_idev+0x102/0x170
[ 3185.677982][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3185.677982][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3185.677982][   T73]      netlink_rcv_skb+0x130/0x360
[ 3185.677982][   T73]      netlink_unicast+0x449/0x710
[ 3185.677982][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3185.677982][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3185.677982][   T73]      ___sys_sendmsg+0xee/0x170
[ 3185.677982][   T73]      __sys_sendmsg+0xcd/0x170
[ 3185.677982][   T73]      do_syscall_64+0xc6/0x1e0
[ 3185.677982][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3185.677982][   T73] 
[ 3185.679538][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3185.679538][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3185.679538][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3185.679538][   T73]      ipv6_find_idev+0x102/0x170
[ 3185.679538][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3185.679538][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3185.679538][   T73]      netlink_rcv_skb+0x130/0x360
[ 3185.679538][   T73]      netlink_unicast+0x449/0x710
[ 3185.679538][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3185.679538][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3185.679538][   T73]      ___sys_sendmsg+0xee/0x170
[ 3185.679538][   T73]      __sys_sendmsg+0xcd/0x170
[ 3185.679538][   T73]      do_syscall_64+0xc6/0x1e0
[ 3185.679538][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3185.679538][   T73] 
[ 3185.681265][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3185.681543][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3185.681543][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3185.681543][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3185.681543][   T73]      fib6_nh_init+0xa22/0x1580
[ 3185.681543][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3185.681543][   T73]      ip6_route_add+0x1c/0x140
[ 3185.681543][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3185.681543][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3185.681543][   T73]      netlink_rcv_skb+0x130/0x360
[ 3185.681543][   T73]      netlink_unicast+0x449/0x710
[ 3185.681543][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3185.681543][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3185.681543][   T73]      ___sys_sendmsg+0xee/0x170
[ 3185.681543][   T73]      __sys_sendmsg+0xcd/0x170
[ 3185.681543][   T73]      do_syscall_64+0xc6/0x1e0
[ 3185.681543][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3185.681543][   T73] 
[ 3185.683622][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3185.683622][   T73]      dst_init+0x84/0x4a0
[ 3185.683622][   T73]      dst_alloc+0x97/0x150
[ 3185.683622][   T73]      ip6_dst_alloc+0x23/0x90
[ 3185.683622][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3185.683622][   T73]      ip6_pol_route+0x56f/0x840
[ 3185.683622][   T73]      fib6_rule_lookup+0x456/0x630
[ 3185.683622][   T73]      ip6_route_input+0x59c/0xa50
[ 3185.683622][   T73]      ipv6_rcv+0x397/0x810
[ 3185.683622][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3185.683622][   T73]      process_backlog+0x101/0x620
[ 3185.683622][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3185.683622][   T73]      net_rx_action+0x495/0xbe0
[ 3185.683622][   T73]      __do_softirq+0x1b5/0x7f6
[ 3185.683622][   T73] 
[ 3185.685984][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3185.685984][   T73]      netdev_get_by_index+0x5e/0x80
[ 3185.685984][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3185.685984][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3185.685984][   T73]      ip6_route_add+0x1c/0x140
[ 3185.685984][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3185.685984][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3185.685984][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3185.685984][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3185.685984][   T73]      netlink_rcv_skb+0x130/0x360
[ 3185.685984][   T73]      netlink_unicast+0x449/0x710
[ 3185.685984][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3185.685984][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3185.685984][   T73]      ___sys_sendmsg+0xee/0x170
[ 3185.685984][   T73]      __sys_sendmsg+0xcd/0x170
[ 3185.685984][   T73]      do_syscall_64+0xc6/0x1e0
[ 3185.685984][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3185.685984][   T73] 
[ 3185.688246][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3185.688246][   T73]      netdev_get_by_index+0x5e/0x80
[ 3185.688246][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3185.688246][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3185.688246][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3185.688246][   T73]      ipv6_add_addr+0x411/0x2000
[ 3185.688246][   T73]      inet6_addr_add+0x30e/0xa40
[ 3185.688246][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3185.688246][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3185.688246][   T73]      netlink_rcv_skb+0x130/0x360
[ 3185.688246][   T73]      netlink_unicast+0x449/0x710
[ 3185.688246][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3185.688246][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3185.688246][   T73]      ___sys_sendmsg+0xee/0x170
[ 3185.688246][   T73]      __sys_sendmsg+0xcd/0x170
[ 3185.688246][   T73]      do_syscall_64+0xc6/0x1e0
[ 3185.688246][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3185.688246][   T73] 
[ 3185.690578][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3185.690578][   T73]      netdev_get_by_index+0x5e/0x80
[ 3185.690578][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3185.690578][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3185.690578][   T73]      ip6_route_add+0x1c/0x140
[ 3185.690578][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3185.690578][   T73]      addrconf_add_dev+0xe2/0x170
[ 3185.690578][   T73]      inet6_addr_add+0x12f/0xa40
[ 3185.690578][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3185.690578][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3185.690578][   T73]      netlink_rcv_skb+0x130/0x360
[ 3185.690578][   T73]      netlink_unicast+0x449/0x710
[ 3185.690578][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3185.690578][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3185.690578][   T73]      ___sys_sendmsg+0xee/0x170
[ 3185.690578][   T73]      __sys_sendmsg+0xcd/0x170
[ 3185.690578][   T73]      do_syscall_64+0xc6/0x1e0
[ 3185.690578][   T73] 
[ 3185.692736][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3185.692736][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3185.692736][   T73]      ipv6_find_idev+0x102/0x170
[ 3185.692736][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3185.692736][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3185.692736][   T73]      netlink_rcv_skb+0x130/0x360
[ 3185.692736][   T73]      netlink_unicast+0x449/0x710
[ 3185.692736][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3185.692736][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3185.692736][   T73]      ___sys_sendmsg+0xee/0x170
[ 3185.692736][   T73]      __sys_sendmsg+0xcd/0x170
[ 3185.692736][   T73]      do_syscall_64+0xc6/0x1e0
[ 3185.692736][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3185.692736][   T73] 
[ 3185.694470][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3185.694470][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3185.694470][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3185.694470][   T73]      ipv6_find_idev+0x102/0x170
[ 3185.694470][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3185.694470][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3185.694470][   T73]      netlink_rcv_skb+0x130/0x360
[ 3185.694470][   T73]      netlink_unicast+0x449/0x710
[ 3185.694470][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3185.694470][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3185.694470][   T73]      ___sys_sendmsg+0xee/0x170
[ 3185.694470][   T73]      __sys_sendmsg+0xcd/0x170
[ 3185.694470][   T73]      do_syscall_64+0xc6/0x1e0
[ 3185.694470][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3185.694470][   T73] 
[ 3185.696418][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3185.697118][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3185.697118][   T73]      netdev_get_by_index+0x5e/0x80
[ 3185.697118][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3185.697118][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3185.697118][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3185.697118][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3185.697118][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3185.697118][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3185.697118][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3185.697118][   T73]      addrconf_dad_begin+0x310/0x670
[ 3185.697118][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3185.697118][   T73]      process_one_work+0x84d/0x18a0
[ 3185.697118][   T73]      worker_thread+0x587/0xd30
[ 3185.697118][   T73]      kthread+0x28a/0x350
[ 3185.697118][   T73]      ret_from_fork+0x31/0x70
[ 3185.697118][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3185.697118][   T73] 
[ 3185.699042][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3185.699042][   T73]      netdev_get_by_index+0x5e/0x80
[ 3185.699042][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3185.699042][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3185.699042][   T73]      ip6_route_add+0x1c/0x140
[ 3185.699042][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3185.699042][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3185.699042][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3185.699042][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3185.699042][   T73]      netlink_rcv_skb+0x130/0x360
[ 3185.699042][   T73]      netlink_unicast+0x449/0x710
[ 3185.699042][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3185.699042][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3185.699042][   T73]      ___sys_sendmsg+0xee/0x170
[ 3185.699042][   T73]      __sys_sendmsg+0xcd/0x170
[ 3185.699042][   T73]      do_syscall_64+0xc6/0x1e0
[ 3185.699042][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3185.699042][   T73] 
[ 3185.701561][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3185.701561][   T73]      netdev_get_by_index+0x5e/0x80
[ 3185.701561][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3185.701561][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3185.701561][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3185.701561][   T73]      ipv6_add_addr+0x411/0x2000
[ 3185.701561][   T73]      inet6_addr_add+0x30e/0xa40
[ 3185.701561][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3185.701561][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3185.701561][   T73]      netlink_rcv_skb+0x130/0x360
[ 3185.701561][   T73]      netlink_unicast+0x449/0x710
[ 3185.701561][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3185.701561][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3185.701561][   T73]      ___sys_sendmsg+0xee/0x170
[ 3185.701561][   T73]      __sys_sendmsg+0xcd/0x170
[ 3185.701561][   T73]      do_syscall_64+0xc6/0x1e0
[ 3185.701561][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3185.701561][   T73] 
[ 3185.703876][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3185.703876][   T73]      netdev_get_by_index+0x5e/0x80
[ 3185.703876][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3185.703876][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3185.703876][   T73]      ip6_route_add+0x1c/0x140
[ 3185.703876][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3185.703876][   T73]      addrconf_add_dev+0xe2/0x170
[ 3185.703876][   T73]      inet6_addr_add+0x12f/0xa40
[ 3185.703876][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3185.703876][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3185.703876][   T73]      netlink_rcv_skb+0x130/0x360
[ 3185.703876][   T73]      netlink_unicast+0x449/0x710
[ 3185.703876][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3185.703876][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3185.703876][   T73]      ___sys_sendmsg+0xee/0x170
[ 3185.703876][   T73]      __sys_sendmsg+0xcd/0x170
[ 3185.703876][   T73]      do_syscall_64+0xc6/0x1e0
[ 3185.703876][   T73] 
[ 3185.706029][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3185.706029][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3185.706029][   T73]      ipv6_find_idev+0x102/0x170
[ 3185.706029][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3185.706029][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3185.706029][   T73]      netlink_rcv_skb+0x130/0x360
[ 3185.706029][   T73]      netlink_unicast+0x449/0x710
[ 3185.706029][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3185.706029][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3185.706029][   T73]      ___sys_sendmsg+0xee/0x170
[ 3185.706029][   T73]      __sys_sendmsg+0xcd/0x170
[ 3185.706029][   T73]      do_syscall_64+0xc6/0x1e0
[ 3185.706029][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3185.706029][   T73] 
[ 3185.707763][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3185.707763][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3185.707763][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3185.707763][   T73]      ipv6_find_idev+0x102/0x170
[ 3185.707763][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3185.707763][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3185.707763][   T73]      netlink_rcv_skb+0x130/0x360
[ 3185.707763][   T73]      netlink_unicast+0x449/0x710
[ 3185.707763][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3185.707763][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3185.707763][   T73]      ___sys_sendmsg+0xee/0x170
[ 3185.707763][   T73]      __sys_sendmsg+0xcd/0x170
[ 3185.707763][   T73]      do_syscall_64+0xc6/0x1e0
[ 3185.707763][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3185.707763][   T73] 
[ 3195.807831][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3195.808347][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3195.808347][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3195.808347][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3195.808347][   T73]      fib6_nh_init+0xa22/0x1580
[ 3195.808347][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3195.808347][   T73]      ip6_route_add+0x1c/0x140
[ 3195.808347][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3195.808347][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3195.808347][   T73]      netlink_rcv_skb+0x130/0x360
[ 3195.808347][   T73]      netlink_unicast+0x449/0x710
[ 3195.808347][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3195.808347][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3195.808347][   T73]      ___sys_sendmsg+0xee/0x170
[ 3195.808347][   T73]      __sys_sendmsg+0xcd/0x170
[ 3195.808347][   T73]      do_syscall_64+0xc6/0x1e0
[ 3195.808347][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3195.808347][   T73] 
[ 3195.810645][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3195.810645][   T73]      dst_init+0x84/0x4a0
[ 3195.810645][   T73]      dst_alloc+0x97/0x150
[ 3195.810645][   T73]      ip6_dst_alloc+0x23/0x90
[ 3195.810645][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3195.810645][   T73]      ip6_pol_route+0x56f/0x840
[ 3195.810645][   T73]      fib6_rule_lookup+0x456/0x630
[ 3195.810645][   T73]      ip6_route_input+0x59c/0xa50
[ 3195.810645][   T73]      ipv6_rcv+0x397/0x810
[ 3195.810645][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3195.810645][   T73]      process_backlog+0x101/0x620
[ 3195.810645][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3195.810645][   T73]      net_rx_action+0x495/0xbe0
[ 3195.810645][   T73]      __do_softirq+0x1b5/0x7f6
[ 3195.810645][   T73] 
[ 3195.812286][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3195.812286][   T73]      netdev_get_by_index+0x5e/0x80
[ 3195.812286][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3195.812286][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3195.812286][   T73]      ip6_route_add+0x1c/0x140
[ 3195.812286][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3195.812286][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3195.812286][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3195.812286][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3195.812286][   T73]      netlink_rcv_skb+0x130/0x360
[ 3195.812286][   T73]      netlink_unicast+0x449/0x710
[ 3195.812286][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3195.812286][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3195.812286][   T73]      ___sys_sendmsg+0xee/0x170
[ 3195.812286][   T73]      __sys_sendmsg+0xcd/0x170
[ 3195.812286][   T73]      do_syscall_64+0xc6/0x1e0
[ 3195.812286][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3195.812286][   T73] 
[ 3195.814273][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3195.814273][   T73]      netdev_get_by_index+0x5e/0x80
[ 3195.814273][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3195.814273][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3195.814273][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3195.814273][   T73]      ipv6_add_addr+0x411/0x2000
[ 3195.814273][   T73]      inet6_addr_add+0x30e/0xa40
[ 3195.814273][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3195.814273][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3195.814273][   T73]      netlink_rcv_skb+0x130/0x360
[ 3195.814273][   T73]      netlink_unicast+0x449/0x710
[ 3195.814273][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3195.814273][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3195.814273][   T73]      ___sys_sendmsg+0xee/0x170
[ 3195.814273][   T73]      __sys_sendmsg+0xcd/0x170
[ 3195.814273][   T73]      do_syscall_64+0xc6/0x1e0
[ 3195.814273][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3195.814273][   T73] 
[ 3195.816264][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3195.816264][   T73]      netdev_get_by_index+0x5e/0x80
[ 3195.816264][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3195.816264][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3195.816264][   T73]      ip6_route_add+0x1c/0x140
[ 3195.816264][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3195.816264][   T73]      addrconf_add_dev+0xe2/0x170
[ 3195.816264][   T73]      inet6_addr_add+0x12f/0xa40
[ 3195.816264][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3195.816264][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3195.816264][   T73]      netlink_rcv_skb+0x130/0x360
[ 3195.816264][   T73]      netlink_unicast+0x449/0x710
[ 3195.816264][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3195.816264][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3195.816264][   T73]      ___sys_sendmsg+0xee/0x170
[ 3195.816264][   T73]      __sys_sendmsg+0xcd/0x170
[ 3195.816264][   T73]      do_syscall_64+0xc6/0x1e0
[ 3195.816264][   T73] 
[ 3195.818216][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3195.818216][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3195.818216][   T73]      ipv6_find_idev+0x102/0x170
[ 3195.818216][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3195.818216][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3195.818216][   T73]      netlink_rcv_skb+0x130/0x360
[ 3195.818216][   T73]      netlink_unicast+0x449/0x710
[ 3195.818216][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3195.818216][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3195.818216][   T73]      ___sys_sendmsg+0xee/0x170
[ 3195.818216][   T73]      __sys_sendmsg+0xcd/0x170
[ 3195.818216][   T73]      do_syscall_64+0xc6/0x1e0
[ 3195.818216][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3195.818216][   T73] 
[ 3195.819761][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3195.819761][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3195.819761][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3195.819761][   T73]      ipv6_find_idev+0x102/0x170
[ 3195.819761][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3195.819761][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3195.819761][   T73]      netlink_rcv_skb+0x130/0x360
[ 3195.819761][   T73]      netlink_unicast+0x449/0x710
[ 3195.819761][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3195.819761][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3195.819761][   T73]      ___sys_sendmsg+0xee/0x170
[ 3195.819761][   T73]      __sys_sendmsg+0xcd/0x170
[ 3195.819761][   T73]      do_syscall_64+0xc6/0x1e0
[ 3195.819761][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3195.819761][   T73] 
[ 3195.821457][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3195.821862][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3195.821862][   T73]      netdev_get_by_index+0x5e/0x80
[ 3195.821862][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3195.821862][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3195.821862][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3195.821862][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3195.821862][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3195.821862][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3195.821862][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3195.821862][   T73]      addrconf_dad_begin+0x310/0x670
[ 3195.821862][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3195.821862][   T73]      process_one_work+0x84d/0x18a0
[ 3195.821862][   T73]      worker_thread+0x587/0xd30
[ 3195.821862][   T73]      kthread+0x28a/0x350
[ 3195.821862][   T73]      ret_from_fork+0x31/0x70
[ 3195.821862][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3195.821862][   T73] 
[ 3195.823758][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3195.823758][   T73]      netdev_get_by_index+0x5e/0x80
[ 3195.823758][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3195.823758][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3195.823758][   T73]      ip6_route_add+0x1c/0x140
[ 3195.823758][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3195.823758][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3195.823758][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3195.823758][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3195.823758][   T73]      netlink_rcv_skb+0x130/0x360
[ 3195.823758][   T73]      netlink_unicast+0x449/0x710
[ 3195.823758][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3195.823758][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3195.823758][   T73]      ___sys_sendmsg+0xee/0x170
[ 3195.823758][   T73]      __sys_sendmsg+0xcd/0x170
[ 3195.823758][   T73]      do_syscall_64+0xc6/0x1e0
[ 3195.823758][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3195.823758][   T73] 
[ 3195.825745][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3195.825745][   T73]      netdev_get_by_index+0x5e/0x80
[ 3195.825745][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3195.825745][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3195.825745][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3195.825745][   T73]      ipv6_add_addr+0x411/0x2000
[ 3195.825745][   T73]      inet6_addr_add+0x30e/0xa40
[ 3195.825745][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3195.825745][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3195.825745][   T73]      netlink_rcv_skb+0x130/0x360
[ 3195.825745][   T73]      netlink_unicast+0x449/0x710
[ 3195.825745][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3195.825745][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3195.825745][   T73]      ___sys_sendmsg+0xee/0x170
[ 3195.825745][   T73]      __sys_sendmsg+0xcd/0x170
[ 3195.825745][   T73]      do_syscall_64+0xc6/0x1e0
[ 3195.825745][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3195.825745][   T73] 
[ 3195.827735][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3195.827735][   T73]      netdev_get_by_index+0x5e/0x80
[ 3195.827735][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3195.827735][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3195.827735][   T73]      ip6_route_add+0x1c/0x140
[ 3195.827735][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3195.827735][   T73]      addrconf_add_dev+0xe2/0x170
[ 3195.827735][   T73]      inet6_addr_add+0x12f/0xa40
[ 3195.827735][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3195.827735][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3195.827735][   T73]      netlink_rcv_skb+0x130/0x360
[ 3195.827735][   T73]      netlink_unicast+0x449/0x710
[ 3195.827735][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3195.827735][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3195.827735][   T73]      ___sys_sendmsg+0xee/0x170
[ 3195.827735][   T73]      __sys_sendmsg+0xcd/0x170
[ 3195.827735][   T73]      do_syscall_64+0xc6/0x1e0
[ 3195.827735][   T73] 
[ 3195.829683][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3195.829683][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3195.829683][   T73]      ipv6_find_idev+0x102/0x170
[ 3195.829683][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3195.829683][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3195.829683][   T73]      netlink_rcv_skb+0x130/0x360
[ 3195.829683][   T73]      netlink_unicast+0x449/0x710
[ 3195.829683][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3195.829683][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3195.829683][   T73]      ___sys_sendmsg+0xee/0x170
[ 3195.829683][   T73]      __sys_sendmsg+0xcd/0x170
[ 3195.829683][   T73]      do_syscall_64+0xc6/0x1e0
[ 3195.829683][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3195.829683][   T73] 
[ 3195.831230][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3195.831230][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3195.831230][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3195.831230][   T73]      ipv6_find_idev+0x102/0x170
[ 3195.831230][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3195.831230][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3195.831230][   T73]      netlink_rcv_skb+0x130/0x360
[ 3195.831230][   T73]      netlink_unicast+0x449/0x710
[ 3195.831230][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3195.831230][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3195.831230][   T73]      ___sys_sendmsg+0xee/0x170
[ 3195.831230][   T73]      __sys_sendmsg+0xcd/0x170
[ 3195.831230][   T73]      do_syscall_64+0xc6/0x1e0
[ 3195.831230][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3195.831230][   T73] 
[ 3195.832928][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3195.833198][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3195.833198][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3195.833198][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3195.833198][   T73]      fib6_nh_init+0xa22/0x1580
[ 3195.833198][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3195.833198][   T73]      ip6_route_add+0x1c/0x140
[ 3195.833198][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3195.833198][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3195.833198][   T73]      netlink_rcv_skb+0x130/0x360
[ 3195.833198][   T73]      netlink_unicast+0x449/0x710
[ 3195.833198][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3195.833198][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3195.833198][   T73]      ___sys_sendmsg+0xee/0x170
[ 3195.833198][   T73]      __sys_sendmsg+0xcd/0x170
[ 3195.833198][   T73]      do_syscall_64+0xc6/0x1e0
[ 3195.833198][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3195.833198][   T73] 
[ 3195.835260][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3195.835260][   T73]      dst_init+0x84/0x4a0
[ 3195.835260][   T73]      dst_alloc+0x97/0x150
[ 3195.835260][   T73]      ip6_dst_alloc+0x23/0x90
[ 3195.835260][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3195.835260][   T73]      ip6_pol_route+0x56f/0x840
[ 3195.835260][   T73]      fib6_rule_lookup+0x456/0x630
[ 3195.835260][   T73]      ip6_route_input+0x59c/0xa50
[ 3195.835260][   T73]      ipv6_rcv+0x397/0x810
[ 3195.835260][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3195.835260][   T73]      process_backlog+0x101/0x620
[ 3195.835260][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3195.835260][   T73]      net_rx_action+0x495/0xbe0
[ 3195.835260][   T73]      __do_softirq+0x1b5/0x7f6
[ 3195.835260][   T73] 
[ 3195.837126][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3195.837126][   T73]      netdev_get_by_index+0x5e/0x80
[ 3195.837126][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3195.837126][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3195.837126][   T73]      ip6_route_add+0x1c/0x140
[ 3195.837126][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3195.837126][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3195.837126][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3195.837126][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3195.837126][   T73]      netlink_rcv_skb+0x130/0x360
[ 3195.837126][   T73]      netlink_unicast+0x449/0x710
[ 3195.837126][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3195.837126][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3195.837126][   T73]      ___sys_sendmsg+0xee/0x170
[ 3195.837126][   T73]      __sys_sendmsg+0xcd/0x170
[ 3195.837126][   T73]      do_syscall_64+0xc6/0x1e0
[ 3195.837126][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3195.837126][   T73] 
[ 3195.839375][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3195.839375][   T73]      netdev_get_by_index+0x5e/0x80
[ 3195.839375][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3195.839375][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3195.839375][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3195.839375][   T73]      ipv6_add_addr+0x411/0x2000
[ 3195.839375][   T73]      inet6_addr_add+0x30e/0xa40
[ 3195.839375][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3195.839375][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3195.839375][   T73]      netlink_rcv_skb+0x130/0x360
[ 3195.839375][   T73]      netlink_unicast+0x449/0x710
[ 3195.839375][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3195.839375][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3195.839375][   T73]      ___sys_sendmsg+0xee/0x170
[ 3195.839375][   T73]      __sys_sendmsg+0xcd/0x170
[ 3195.839375][   T73]      do_syscall_64+0xc6/0x1e0
[ 3195.839375][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3195.839375][   T73] 
[ 3195.841575][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3195.841575][   T73]      netdev_get_by_index+0x5e/0x80
[ 3195.841575][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3195.841575][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3195.841575][   T73]      ip6_route_add+0x1c/0x140
[ 3195.841575][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3195.841575][   T73]      addrconf_add_dev+0xe2/0x170
[ 3195.841575][   T73]      inet6_addr_add+0x12f/0xa40
[ 3195.841575][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3195.841575][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3195.841575][   T73]      netlink_rcv_skb+0x130/0x360
[ 3195.841575][   T73]      netlink_unicast+0x449/0x710
[ 3195.841575][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3195.841575][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3195.841575][   T73]      ___sys_sendmsg+0xee/0x170
[ 3195.841575][   T73]      __sys_sendmsg+0xcd/0x170
[ 3195.841575][   T73]      do_syscall_64+0xc6/0x1e0
[ 3195.841575][   T73] 
[ 3195.843774][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3195.843774][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3195.843774][   T73]      ipv6_find_idev+0x102/0x170
[ 3195.843774][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3195.843774][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3195.843774][   T73]      netlink_rcv_skb+0x130/0x360
[ 3195.843774][   T73]      netlink_unicast+0x449/0x710
[ 3195.843774][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3195.843774][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3195.843774][   T73]      ___sys_sendmsg+0xee/0x170
[ 3195.843774][   T73]      __sys_sendmsg+0xcd/0x170
[ 3195.843774][   T73]      do_syscall_64+0xc6/0x1e0
[ 3195.843774][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3195.843774][   T73] 
[ 3195.845550][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3195.845550][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3195.845550][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3195.845550][   T73]      ipv6_find_idev+0x102/0x170
[ 3195.845550][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3195.845550][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3195.845550][   T73]      netlink_rcv_skb+0x130/0x360
[ 3195.845550][   T73]      netlink_unicast+0x449/0x710
[ 3195.845550][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3195.845550][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3195.845550][   T73]      ___sys_sendmsg+0xee/0x170
[ 3195.845550][   T73]      __sys_sendmsg+0xcd/0x170
[ 3195.845550][   T73]      do_syscall_64+0xc6/0x1e0
[ 3195.845550][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3195.845550][   T73] 
[ 3195.847823][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3195.848100][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3195.848100][   T73]      netdev_get_by_index+0x5e/0x80
[ 3195.848100][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3195.848100][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3195.848100][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3195.848100][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3195.848100][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3195.848100][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3195.848100][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3195.848100][   T73]      addrconf_dad_begin+0x310/0x670
[ 3195.848100][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3195.848100][   T73]      process_one_work+0x84d/0x18a0
[ 3195.848100][   T73]      worker_thread+0x587/0xd30
[ 3195.848100][   T73]      kthread+0x28a/0x350
[ 3195.848100][   T73]      ret_from_fork+0x31/0x70
[ 3195.848100][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3195.848100][   T73] 
[ 3195.850002][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3195.850002][   T73]      netdev_get_by_index+0x5e/0x80
[ 3195.850002][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3195.850002][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3195.850002][   T73]      ip6_route_add+0x1c/0x140
[ 3195.850002][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3195.850002][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3195.850002][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3195.850002][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3195.850002][   T73]      netlink_rcv_skb+0x130/0x360
[ 3195.850002][   T73]      netlink_unicast+0x449/0x710
[ 3195.850002][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3195.850002][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3195.850002][   T73]      ___sys_sendmsg+0xee/0x170
[ 3195.850002][   T73]      __sys_sendmsg+0xcd/0x170
[ 3195.850002][   T73]      do_syscall_64+0xc6/0x1e0
[ 3195.850002][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3195.850002][   T73] 
[ 3195.852120][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3195.852120][   T73]      netdev_get_by_index+0x5e/0x80
[ 3195.852120][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3195.852120][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3195.852120][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3195.852120][   T73]      ipv6_add_addr+0x411/0x2000
[ 3195.852120][   T73]      inet6_addr_add+0x30e/0xa40
[ 3195.852120][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3195.852120][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3195.852120][   T73]      netlink_rcv_skb+0x130/0x360
[ 3195.852120][   T73]      netlink_unicast+0x449/0x710
[ 3195.852120][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3195.852120][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3195.852120][   T73]      ___sys_sendmsg+0xee/0x170
[ 3195.852120][   T73]      __sys_sendmsg+0xcd/0x170
[ 3195.852120][   T73]      do_syscall_64+0xc6/0x1e0
[ 3195.852120][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3195.852120][   T73] 
[ 3195.854352][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3195.854352][   T73]      netdev_get_by_index+0x5e/0x80
[ 3195.854352][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3195.854352][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3195.854352][   T73]      ip6_route_add+0x1c/0x140
[ 3195.854352][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3195.854352][   T73]      addrconf_add_dev+0xe2/0x170
[ 3195.854352][   T73]      inet6_addr_add+0x12f/0xa40
[ 3195.854352][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3195.854352][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3195.854352][   T73]      netlink_rcv_skb+0x130/0x360
[ 3195.854352][   T73]      netlink_unicast+0x449/0x710
[ 3195.854352][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3195.854352][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3195.854352][   T73]      ___sys_sendmsg+0xee/0x170
[ 3195.854352][   T73]      __sys_sendmsg+0xcd/0x170
[ 3195.854352][   T73]      do_syscall_64+0xc6/0x1e0
[ 3195.854352][   T73] 
[ 3195.856490][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3195.856490][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3195.856490][   T73]      ipv6_find_idev+0x102/0x170
[ 3195.856490][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3195.856490][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3195.856490][   T73]      netlink_rcv_skb+0x130/0x360
[ 3195.856490][   T73]      netlink_unicast+0x449/0x710
[ 3195.856490][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3195.856490][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3195.856490][   T73]      ___sys_sendmsg+0xee/0x170
[ 3195.856490][   T73]      __sys_sendmsg+0xcd/0x170
[ 3195.856490][   T73]      do_syscall_64+0xc6/0x1e0
[ 3195.856490][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3195.856490][   T73] 
[ 3195.858273][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3195.858273][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3195.858273][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3195.858273][   T73]      ipv6_find_idev+0x102/0x170
[ 3195.858273][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3195.858273][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3195.858273][   T73]      netlink_rcv_skb+0x130/0x360
[ 3195.858273][   T73]      netlink_unicast+0x449/0x710
[ 3195.858273][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3195.858273][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3195.858273][   T73]      ___sys_sendmsg+0xee/0x170
[ 3195.858273][   T73]      __sys_sendmsg+0xcd/0x170
[ 3195.858273][   T73]      do_syscall_64+0xc6/0x1e0
[ 3195.858273][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3195.858273][   T73] 
[ 3205.951713][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3205.952208][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3205.952208][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3205.952208][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3205.952208][   T73]      fib6_nh_init+0xa22/0x1580
[ 3205.952208][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3205.952208][   T73]      ip6_route_add+0x1c/0x140
[ 3205.952208][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3205.952208][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3205.952208][   T73]      netlink_rcv_skb+0x130/0x360
[ 3205.952208][   T73]      netlink_unicast+0x449/0x710
[ 3205.952208][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3205.952208][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3205.952208][   T73]      ___sys_sendmsg+0xee/0x170
[ 3205.952208][   T73]      __sys_sendmsg+0xcd/0x170
[ 3205.952208][   T73]      do_syscall_64+0xc6/0x1e0
[ 3205.952208][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3205.952208][   T73] 
[ 3205.954115][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3205.954115][   T73]      dst_init+0x84/0x4a0
[ 3205.954115][   T73]      dst_alloc+0x97/0x150
[ 3205.954115][   T73]      ip6_dst_alloc+0x23/0x90
[ 3205.954115][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3205.954115][   T73]      ip6_pol_route+0x56f/0x840
[ 3205.954115][   T73]      fib6_rule_lookup+0x456/0x630
[ 3205.954115][   T73]      ip6_route_input+0x59c/0xa50
[ 3205.954115][   T73]      ipv6_rcv+0x397/0x810
[ 3205.954115][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3205.954115][   T73]      process_backlog+0x101/0x620
[ 3205.954115][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3205.954115][   T73]      net_rx_action+0x495/0xbe0
[ 3205.954115][   T73]      __do_softirq+0x1b5/0x7f6
[ 3205.954115][   T73] 
[ 3205.955758][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3205.955758][   T73]      netdev_get_by_index+0x5e/0x80
[ 3205.955758][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3205.955758][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3205.955758][   T73]      ip6_route_add+0x1c/0x140
[ 3205.955758][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3205.955758][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3205.955758][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3205.955758][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3205.955758][   T73]      netlink_rcv_skb+0x130/0x360
[ 3205.955758][   T73]      netlink_unicast+0x449/0x710
[ 3205.955758][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3205.955758][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3205.955758][   T73]      ___sys_sendmsg+0xee/0x170
[ 3205.955758][   T73]      __sys_sendmsg+0xcd/0x170
[ 3205.955758][   T73]      do_syscall_64+0xc6/0x1e0
[ 3205.955758][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3205.955758][   T73] 
[ 3205.957765][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3205.957765][   T73]      netdev_get_by_index+0x5e/0x80
[ 3205.957765][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3205.957765][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3205.957765][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3205.957765][   T73]      ipv6_add_addr+0x411/0x2000
[ 3205.957765][   T73]      inet6_addr_add+0x30e/0xa40
[ 3205.957765][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3205.957765][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3205.957765][   T73]      netlink_rcv_skb+0x130/0x360
[ 3205.957765][   T73]      netlink_unicast+0x449/0x710
[ 3205.957765][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3205.957765][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3205.957765][   T73]      ___sys_sendmsg+0xee/0x170
[ 3205.957765][   T73]      __sys_sendmsg+0xcd/0x170
[ 3205.957765][   T73]      do_syscall_64+0xc6/0x1e0
[ 3205.957765][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3205.957765][   T73] 
[ 3205.959783][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3205.959783][   T73]      netdev_get_by_index+0x5e/0x80
[ 3205.959783][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3205.959783][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3205.959783][   T73]      ip6_route_add+0x1c/0x140
[ 3205.959783][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3205.959783][   T73]      addrconf_add_dev+0xe2/0x170
[ 3205.959783][   T73]      inet6_addr_add+0x12f/0xa40
[ 3205.959783][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3205.959783][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3205.959783][   T73]      netlink_rcv_skb+0x130/0x360
[ 3205.959783][   T73]      netlink_unicast+0x449/0x710
[ 3205.959783][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3205.959783][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3205.959783][   T73]      ___sys_sendmsg+0xee/0x170
[ 3205.959783][   T73]      __sys_sendmsg+0xcd/0x170
[ 3205.959783][   T73]      do_syscall_64+0xc6/0x1e0
[ 3205.959783][   T73] 
[ 3205.961753][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3205.961753][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3205.961753][   T73]      ipv6_find_idev+0x102/0x170
[ 3205.961753][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3205.961753][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3205.961753][   T73]      netlink_rcv_skb+0x130/0x360
[ 3205.961753][   T73]      netlink_unicast+0x449/0x710
[ 3205.961753][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3205.961753][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3205.961753][   T73]      ___sys_sendmsg+0xee/0x170
[ 3205.961753][   T73]      __sys_sendmsg+0xcd/0x170
[ 3205.961753][   T73]      do_syscall_64+0xc6/0x1e0
[ 3205.961753][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3205.961753][   T73] 
[ 3205.963292][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3205.963292][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3205.963292][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3205.963292][   T73]      ipv6_find_idev+0x102/0x170
[ 3205.963292][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3205.963292][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3205.963292][   T73]      netlink_rcv_skb+0x130/0x360
[ 3205.963292][   T73]      netlink_unicast+0x449/0x710
[ 3205.963292][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3205.963292][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3205.963292][   T73]      ___sys_sendmsg+0xee/0x170
[ 3205.963292][   T73]      __sys_sendmsg+0xcd/0x170
[ 3205.963292][   T73]      do_syscall_64+0xc6/0x1e0
[ 3205.963292][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3205.963292][   T73] 
[ 3205.964985][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3205.965271][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3205.965271][   T73]      netdev_get_by_index+0x5e/0x80
[ 3205.965271][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3205.965271][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3205.965271][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3205.965271][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3205.965271][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3205.965271][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3205.965271][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3205.965271][   T73]      addrconf_dad_begin+0x310/0x670
[ 3205.965271][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3205.965271][   T73]      process_one_work+0x84d/0x18a0
[ 3205.965271][   T73]      worker_thread+0x587/0xd30
[ 3205.965271][   T73]      kthread+0x28a/0x350
[ 3205.965271][   T73]      ret_from_fork+0x31/0x70
[ 3205.965271][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3205.965271][   T73] 
[ 3205.967182][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3205.967182][   T73]      netdev_get_by_index+0x5e/0x80
[ 3205.967182][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3205.967182][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3205.967182][   T73]      ip6_route_add+0x1c/0x140
[ 3205.967182][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3205.967182][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3205.967182][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3205.967182][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3205.967182][   T73]      netlink_rcv_skb+0x130/0x360
[ 3205.967182][   T73]      netlink_unicast+0x449/0x710
[ 3205.967182][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3205.967182][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3205.967182][   T73]      ___sys_sendmsg+0xee/0x170
[ 3205.967182][   T73]      __sys_sendmsg+0xcd/0x170
[ 3205.967182][   T73]      do_syscall_64+0xc6/0x1e0
[ 3205.967182][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3205.967182][   T73] 
[ 3205.969179][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3205.969179][   T73]      netdev_get_by_index+0x5e/0x80
[ 3205.969179][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3205.969179][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3205.969179][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3205.969179][   T73]      ipv6_add_addr+0x411/0x2000
[ 3205.969179][   T73]      inet6_addr_add+0x30e/0xa40
[ 3205.969179][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3205.969179][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3205.969179][   T73]      netlink_rcv_skb+0x130/0x360
[ 3205.969179][   T73]      netlink_unicast+0x449/0x710
[ 3205.969179][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3205.969179][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3205.969179][   T73]      ___sys_sendmsg+0xee/0x170
[ 3205.969179][   T73]      __sys_sendmsg+0xcd/0x170
[ 3205.969179][   T73]      do_syscall_64+0xc6/0x1e0
[ 3205.969179][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3205.969179][   T73] 
[ 3205.971180][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3205.971180][   T73]      netdev_get_by_index+0x5e/0x80
[ 3205.971180][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3205.971180][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3205.971180][   T73]      ip6_route_add+0x1c/0x140
[ 3205.971180][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3205.971180][   T73]      addrconf_add_dev+0xe2/0x170
[ 3205.971180][   T73]      inet6_addr_add+0x12f/0xa40
[ 3205.971180][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3205.971180][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3205.971180][   T73]      netlink_rcv_skb+0x130/0x360
[ 3205.971180][   T73]      netlink_unicast+0x449/0x710
[ 3205.971180][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3205.971180][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3205.971180][   T73]      ___sys_sendmsg+0xee/0x170
[ 3205.971180][   T73]      __sys_sendmsg+0xcd/0x170
[ 3205.971180][   T73]      do_syscall_64+0xc6/0x1e0
[ 3205.971180][   T73] 
[ 3205.973155][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3205.973155][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3205.973155][   T73]      ipv6_find_idev+0x102/0x170
[ 3205.973155][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3205.973155][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3205.973155][   T73]      netlink_rcv_skb+0x130/0x360
[ 3205.973155][   T73]      netlink_unicast+0x449/0x710
[ 3205.973155][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3205.973155][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3205.973155][   T73]      ___sys_sendmsg+0xee/0x170
[ 3205.973155][   T73]      __sys_sendmsg+0xcd/0x170
[ 3205.973155][   T73]      do_syscall_64+0xc6/0x1e0
[ 3205.973155][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3205.973155][   T73] 
[ 3205.974708][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3205.974708][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3205.974708][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3205.974708][   T73]      ipv6_find_idev+0x102/0x170
[ 3205.974708][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3205.974708][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3205.974708][   T73]      netlink_rcv_skb+0x130/0x360
[ 3205.974708][   T73]      netlink_unicast+0x449/0x710
[ 3205.974708][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3205.974708][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3205.974708][   T73]      ___sys_sendmsg+0xee/0x170
[ 3205.974708][   T73]      __sys_sendmsg+0xcd/0x170
[ 3205.974708][   T73]      do_syscall_64+0xc6/0x1e0
[ 3205.974708][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3205.974708][   T73] 
[ 3205.976386][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3205.976659][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3205.976659][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3205.976659][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3205.976659][   T73]      fib6_nh_init+0xa22/0x1580
[ 3205.976659][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3205.976659][   T73]      ip6_route_add+0x1c/0x140
[ 3205.976659][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3205.976659][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3205.976659][   T73]      netlink_rcv_skb+0x130/0x360
[ 3205.976659][   T73]      netlink_unicast+0x449/0x710
[ 3205.976659][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3205.976659][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3205.976659][   T73]      ___sys_sendmsg+0xee/0x170
[ 3205.976659][   T73]      __sys_sendmsg+0xcd/0x170
[ 3205.976659][   T73]      do_syscall_64+0xc6/0x1e0
[ 3205.976659][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3205.976659][   T73] 
[ 3205.978727][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3205.978727][   T73]      dst_init+0x84/0x4a0
[ 3205.978727][   T73]      dst_alloc+0x97/0x150
[ 3205.978727][   T73]      ip6_dst_alloc+0x23/0x90
[ 3205.978727][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3205.978727][   T73]      ip6_pol_route+0x56f/0x840
[ 3205.978727][   T73]      fib6_rule_lookup+0x456/0x630
[ 3205.978727][   T73]      ip6_route_input+0x59c/0xa50
[ 3205.978727][   T73]      ipv6_rcv+0x397/0x810
[ 3205.978727][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3205.978727][   T73]      process_backlog+0x101/0x620
[ 3205.978727][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3205.978727][   T73]      net_rx_action+0x495/0xbe0
[ 3205.978727][   T73]      __do_softirq+0x1b5/0x7f6
[ 3205.978727][   T73] 
[ 3205.980605][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3205.980605][   T73]      netdev_get_by_index+0x5e/0x80
[ 3205.980605][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3205.980605][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3205.980605][   T73]      ip6_route_add+0x1c/0x140
[ 3205.980605][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3205.980605][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3205.980605][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3205.980605][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3205.980605][   T73]      netlink_rcv_skb+0x130/0x360
[ 3205.980605][   T73]      netlink_unicast+0x449/0x710
[ 3205.980605][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3205.980605][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3205.980605][   T73]      ___sys_sendmsg+0xee/0x170
[ 3205.980605][   T73]      __sys_sendmsg+0xcd/0x170
[ 3205.980605][   T73]      do_syscall_64+0xc6/0x1e0
[ 3205.980605][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3205.980605][   T73] 
[ 3205.982832][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3205.982832][   T73]      netdev_get_by_index+0x5e/0x80
[ 3205.982832][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3205.982832][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3205.982832][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3205.982832][   T73]      ipv6_add_addr+0x411/0x2000
[ 3205.982832][   T73]      inet6_addr_add+0x30e/0xa40
[ 3205.982832][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3205.982832][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3205.982832][   T73]      netlink_rcv_skb+0x130/0x360
[ 3205.982832][   T73]      netlink_unicast+0x449/0x710
[ 3205.982832][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3205.982832][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3205.982832][   T73]      ___sys_sendmsg+0xee/0x170
[ 3205.982832][   T73]      __sys_sendmsg+0xcd/0x170
[ 3205.982832][   T73]      do_syscall_64+0xc6/0x1e0
[ 3205.982832][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3205.982832][   T73] 
[ 3205.985048][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3205.985048][   T73]      netdev_get_by_index+0x5e/0x80
[ 3205.985048][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3205.985048][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3205.985048][   T73]      ip6_route_add+0x1c/0x140
[ 3205.985048][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3205.985048][   T73]      addrconf_add_dev+0xe2/0x170
[ 3205.985048][   T73]      inet6_addr_add+0x12f/0xa40
[ 3205.985048][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3205.985048][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3205.985048][   T73]      netlink_rcv_skb+0x130/0x360
[ 3205.985048][   T73]      netlink_unicast+0x449/0x710
[ 3205.985048][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3205.985048][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3205.985048][   T73]      ___sys_sendmsg+0xee/0x170
[ 3205.985048][   T73]      __sys_sendmsg+0xcd/0x170
[ 3205.985048][   T73]      do_syscall_64+0xc6/0x1e0
[ 3205.985048][   T73] 
[ 3205.987255][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3205.987255][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3205.987255][   T73]      ipv6_find_idev+0x102/0x170
[ 3205.987255][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3205.987255][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3205.987255][   T73]      netlink_rcv_skb+0x130/0x360
[ 3205.987255][   T73]      netlink_unicast+0x449/0x710
[ 3205.987255][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3205.987255][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3205.987255][   T73]      ___sys_sendmsg+0xee/0x170
[ 3205.987255][   T73]      __sys_sendmsg+0xcd/0x170
[ 3205.987255][   T73]      do_syscall_64+0xc6/0x1e0
[ 3205.987255][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3205.987255][   T73] 
[ 3205.989037][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3205.989037][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3205.989037][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3205.989037][   T73]      ipv6_find_idev+0x102/0x170
[ 3205.989037][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3205.989037][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3205.989037][   T73]      netlink_rcv_skb+0x130/0x360
[ 3205.989037][   T73]      netlink_unicast+0x449/0x710
[ 3205.989037][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3205.989037][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3205.989037][   T73]      ___sys_sendmsg+0xee/0x170
[ 3205.989037][   T73]      __sys_sendmsg+0xcd/0x170
[ 3205.989037][   T73]      do_syscall_64+0xc6/0x1e0
[ 3205.989037][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3205.989037][   T73] 
[ 3205.990901][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3205.991183][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3205.991183][   T73]      netdev_get_by_index+0x5e/0x80
[ 3205.991183][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3205.991183][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3205.991183][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3205.991183][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3205.991183][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3205.991183][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3205.991183][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3205.991183][   T73]      addrconf_dad_begin+0x310/0x670
[ 3205.991183][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3205.991183][   T73]      process_one_work+0x84d/0x18a0
[ 3205.991183][   T73]      worker_thread+0x587/0xd30
[ 3205.991183][   T73]      kthread+0x28a/0x350
[ 3205.991183][   T73]      ret_from_fork+0x31/0x70
[ 3205.991183][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3205.991183][   T73] 
[ 3205.993332][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3205.993332][   T73]      netdev_get_by_index+0x5e/0x80
[ 3205.993332][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3205.993332][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3205.993332][   T73]      ip6_route_add+0x1c/0x140
[ 3205.993332][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3205.993332][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3205.993332][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3205.993332][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3205.993332][   T73]      netlink_rcv_skb+0x130/0x360
[ 3205.993332][   T73]      netlink_unicast+0x449/0x710
[ 3205.993332][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3205.993332][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3205.993332][   T73]      ___sys_sendmsg+0xee/0x170
[ 3205.993332][   T73]      __sys_sendmsg+0xcd/0x170
[ 3205.993332][   T73]      do_syscall_64+0xc6/0x1e0
[ 3205.993332][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3205.993332][   T73] 
[ 3205.995578][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3205.995578][   T73]      netdev_get_by_index+0x5e/0x80
[ 3205.995578][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3205.995578][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3205.995578][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3205.995578][   T73]      ipv6_add_addr+0x411/0x2000
[ 3205.995578][   T73]      inet6_addr_add+0x30e/0xa40
[ 3205.995578][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3205.995578][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3205.995578][   T73]      netlink_rcv_skb+0x130/0x360
[ 3205.995578][   T73]      netlink_unicast+0x449/0x710
[ 3205.995578][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3205.995578][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3205.995578][   T73]      ___sys_sendmsg+0xee/0x170
[ 3205.995578][   T73]      __sys_sendmsg+0xcd/0x170
[ 3205.995578][   T73]      do_syscall_64+0xc6/0x1e0
[ 3205.995578][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3205.995578][   T73] 
[ 3205.997876][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3205.997876][   T73]      netdev_get_by_index+0x5e/0x80
[ 3205.997876][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3205.997876][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3205.997876][   T73]      ip6_route_add+0x1c/0x140
[ 3205.997876][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3205.997876][   T73]      addrconf_add_dev+0xe2/0x170
[ 3205.997876][   T73]      inet6_addr_add+0x12f/0xa40
[ 3205.997876][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3205.997876][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3205.997876][   T73]      netlink_rcv_skb+0x130/0x360
[ 3205.997876][   T73]      netlink_unicast+0x449/0x710
[ 3205.997876][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3205.997876][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3205.997876][   T73]      ___sys_sendmsg+0xee/0x170
[ 3205.997876][   T73]      __sys_sendmsg+0xcd/0x170
[ 3205.997876][   T73]      do_syscall_64+0xc6/0x1e0
[ 3205.997876][   T73] 
[ 3206.000018][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3206.000018][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3206.000018][   T73]      ipv6_find_idev+0x102/0x170
[ 3206.000018][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3206.000018][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3206.000018][   T73]      netlink_rcv_skb+0x130/0x360
[ 3206.000018][   T73]      netlink_unicast+0x449/0x710
[ 3206.000018][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3206.000018][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3206.000018][   T73]      ___sys_sendmsg+0xee/0x170
[ 3206.000018][   T73]      __sys_sendmsg+0xcd/0x170
[ 3206.000018][   T73]      do_syscall_64+0xc6/0x1e0
[ 3206.000018][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3206.000018][   T73] 
[ 3206.001724][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3206.001724][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3206.001724][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3206.001724][   T73]      ipv6_find_idev+0x102/0x170
[ 3206.001724][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3206.001724][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3206.001724][   T73]      netlink_rcv_skb+0x130/0x360
[ 3206.001724][   T73]      netlink_unicast+0x449/0x710
[ 3206.001724][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3206.001724][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3206.001724][   T73]      ___sys_sendmsg+0xee/0x170
[ 3206.001724][   T73]      __sys_sendmsg+0xcd/0x170
[ 3206.001724][   T73]      do_syscall_64+0xc6/0x1e0
[ 3206.001724][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3206.001724][   T73] 
[ 3216.055812][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3216.056318][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3216.056318][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3216.056318][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3216.056318][   T73]      fib6_nh_init+0xa22/0x1580
[ 3216.056318][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3216.056318][   T73]      ip6_route_add+0x1c/0x140
[ 3216.056318][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3216.056318][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3216.056318][   T73]      netlink_rcv_skb+0x130/0x360
[ 3216.056318][   T73]      netlink_unicast+0x449/0x710
[ 3216.056318][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3216.056318][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3216.056318][   T73]      ___sys_sendmsg+0xee/0x170
[ 3216.056318][   T73]      __sys_sendmsg+0xcd/0x170
[ 3216.056318][   T73]      do_syscall_64+0xc6/0x1e0
[ 3216.056318][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3216.056318][   T73] 
[ 3216.058222][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3216.058222][   T73]      dst_init+0x84/0x4a0
[ 3216.058222][   T73]      dst_alloc+0x97/0x150
[ 3216.058222][   T73]      ip6_dst_alloc+0x23/0x90
[ 3216.058222][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3216.058222][   T73]      ip6_pol_route+0x56f/0x840
[ 3216.058222][   T73]      fib6_rule_lookup+0x456/0x630
[ 3216.058222][   T73]      ip6_route_input+0x59c/0xa50
[ 3216.058222][   T73]      ipv6_rcv+0x397/0x810
[ 3216.058222][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3216.058222][   T73]      process_backlog+0x101/0x620
[ 3216.058222][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3216.058222][   T73]      net_rx_action+0x495/0xbe0
[ 3216.058222][   T73]      __do_softirq+0x1b5/0x7f6
[ 3216.058222][   T73] 
[ 3216.059899][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3216.059899][   T73]      netdev_get_by_index+0x5e/0x80
[ 3216.059899][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3216.059899][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3216.059899][   T73]      ip6_route_add+0x1c/0x140
[ 3216.059899][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3216.059899][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3216.059899][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3216.059899][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3216.059899][   T73]      netlink_rcv_skb+0x130/0x360
[ 3216.059899][   T73]      netlink_unicast+0x449/0x710
[ 3216.059899][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3216.059899][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3216.059899][   T73]      ___sys_sendmsg+0xee/0x170
[ 3216.059899][   T73]      __sys_sendmsg+0xcd/0x170
[ 3216.059899][   T73]      do_syscall_64+0xc6/0x1e0
[ 3216.059899][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3216.059899][   T73] 
[ 3216.061900][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3216.061900][   T73]      netdev_get_by_index+0x5e/0x80
[ 3216.061900][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3216.061900][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3216.061900][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3216.061900][   T73]      ipv6_add_addr+0x411/0x2000
[ 3216.061900][   T73]      inet6_addr_add+0x30e/0xa40
[ 3216.061900][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3216.061900][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3216.061900][   T73]      netlink_rcv_skb+0x130/0x360
[ 3216.061900][   T73]      netlink_unicast+0x449/0x710
[ 3216.061900][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3216.061900][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3216.061900][   T73]      ___sys_sendmsg+0xee/0x170
[ 3216.061900][   T73]      __sys_sendmsg+0xcd/0x170
[ 3216.061900][   T73]      do_syscall_64+0xc6/0x1e0
[ 3216.061900][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3216.061900][   T73] 
[ 3216.063905][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3216.063905][   T73]      netdev_get_by_index+0x5e/0x80
[ 3216.063905][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3216.063905][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3216.063905][   T73]      ip6_route_add+0x1c/0x140
[ 3216.063905][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3216.063905][   T73]      addrconf_add_dev+0xe2/0x170
[ 3216.063905][   T73]      inet6_addr_add+0x12f/0xa40
[ 3216.063905][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3216.063905][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3216.063905][   T73]      netlink_rcv_skb+0x130/0x360
[ 3216.063905][   T73]      netlink_unicast+0x449/0x710
[ 3216.063905][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3216.063905][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3216.063905][   T73]      ___sys_sendmsg+0xee/0x170
[ 3216.063905][   T73]      __sys_sendmsg+0xcd/0x170
[ 3216.063905][   T73]      do_syscall_64+0xc6/0x1e0
[ 3216.063905][   T73] 
[ 3216.065953][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3216.065953][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3216.065953][   T73]      ipv6_find_idev+0x102/0x170
[ 3216.065953][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3216.065953][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3216.065953][   T73]      netlink_rcv_skb+0x130/0x360
[ 3216.065953][   T73]      netlink_unicast+0x449/0x710
[ 3216.065953][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3216.065953][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3216.065953][   T73]      ___sys_sendmsg+0xee/0x170
[ 3216.065953][   T73]      __sys_sendmsg+0xcd/0x170
[ 3216.065953][   T73]      do_syscall_64+0xc6/0x1e0
[ 3216.065953][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3216.065953][   T73] 
[ 3216.067504][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3216.067504][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3216.067504][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3216.067504][   T73]      ipv6_find_idev+0x102/0x170
[ 3216.067504][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3216.067504][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3216.067504][   T73]      netlink_rcv_skb+0x130/0x360
[ 3216.067504][   T73]      netlink_unicast+0x449/0x710
[ 3216.067504][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3216.067504][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3216.067504][   T73]      ___sys_sendmsg+0xee/0x170
[ 3216.067504][   T73]      __sys_sendmsg+0xcd/0x170
[ 3216.067504][   T73]      do_syscall_64+0xc6/0x1e0
[ 3216.067504][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3216.067504][   T73] 
[ 3216.069194][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3216.069483][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3216.069483][   T73]      netdev_get_by_index+0x5e/0x80
[ 3216.069483][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3216.069483][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3216.069483][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3216.069483][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3216.069483][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3216.069483][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3216.069483][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3216.069483][   T73]      addrconf_dad_begin+0x310/0x670
[ 3216.069483][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3216.069483][   T73]      process_one_work+0x84d/0x18a0
[ 3216.069483][   T73]      worker_thread+0x587/0xd30
[ 3216.069483][   T73]      kthread+0x28a/0x350
[ 3216.069483][   T73]      ret_from_fork+0x31/0x70
[ 3216.069483][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3216.069483][   T73] 
[ 3216.071401][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3216.071401][   T73]      netdev_get_by_index+0x5e/0x80
[ 3216.071401][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3216.071401][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3216.071401][   T73]      ip6_route_add+0x1c/0x140
[ 3216.071401][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3216.071401][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3216.071401][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3216.071401][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3216.071401][   T73]      netlink_rcv_skb+0x130/0x360
[ 3216.071401][   T73]      netlink_unicast+0x449/0x710
[ 3216.071401][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3216.071401][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3216.071401][   T73]      ___sys_sendmsg+0xee/0x170
[ 3216.071401][   T73]      __sys_sendmsg+0xcd/0x170
[ 3216.071401][   T73]      do_syscall_64+0xc6/0x1e0
[ 3216.071401][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3216.071401][   T73] 
[ 3216.073398][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3216.073398][   T73]      netdev_get_by_index+0x5e/0x80
[ 3216.073398][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3216.073398][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3216.073398][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3216.073398][   T73]      ipv6_add_addr+0x411/0x2000
[ 3216.073398][   T73]      inet6_addr_add+0x30e/0xa40
[ 3216.073398][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3216.073398][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3216.073398][   T73]      netlink_rcv_skb+0x130/0x360
[ 3216.073398][   T73]      netlink_unicast+0x449/0x710
[ 3216.073398][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3216.073398][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3216.073398][   T73]      ___sys_sendmsg+0xee/0x170
[ 3216.073398][   T73]      __sys_sendmsg+0xcd/0x170
[ 3216.073398][   T73]      do_syscall_64+0xc6/0x1e0
[ 3216.073398][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3216.073398][   T73] 
[ 3216.075379][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3216.075379][   T73]      netdev_get_by_index+0x5e/0x80
[ 3216.075379][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3216.075379][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3216.075379][   T73]      ip6_route_add+0x1c/0x140
[ 3216.075379][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3216.075379][   T73]      addrconf_add_dev+0xe2/0x170
[ 3216.075379][   T73]      inet6_addr_add+0x12f/0xa40
[ 3216.075379][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3216.075379][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3216.075379][   T73]      netlink_rcv_skb+0x130/0x360
[ 3216.075379][   T73]      netlink_unicast+0x449/0x710
[ 3216.075379][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3216.075379][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3216.075379][   T73]      ___sys_sendmsg+0xee/0x170
[ 3216.075379][   T73]      __sys_sendmsg+0xcd/0x170
[ 3216.075379][   T73]      do_syscall_64+0xc6/0x1e0
[ 3216.075379][   T73] 
[ 3216.077333][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3216.077333][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3216.077333][   T73]      ipv6_find_idev+0x102/0x170
[ 3216.077333][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3216.077333][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3216.077333][   T73]      netlink_rcv_skb+0x130/0x360
[ 3216.077333][   T73]      netlink_unicast+0x449/0x710
[ 3216.077333][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3216.077333][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3216.077333][   T73]      ___sys_sendmsg+0xee/0x170
[ 3216.077333][   T73]      __sys_sendmsg+0xcd/0x170
[ 3216.077333][   T73]      do_syscall_64+0xc6/0x1e0
[ 3216.077333][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3216.077333][   T73] 
[ 3216.078866][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3216.078866][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3216.078866][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3216.078866][   T73]      ipv6_find_idev+0x102/0x170
[ 3216.078866][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3216.078866][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3216.078866][   T73]      netlink_rcv_skb+0x130/0x360
[ 3216.078866][   T73]      netlink_unicast+0x449/0x710
[ 3216.078866][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3216.078866][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3216.078866][   T73]      ___sys_sendmsg+0xee/0x170
[ 3216.078866][   T73]      __sys_sendmsg+0xcd/0x170
[ 3216.078866][   T73]      do_syscall_64+0xc6/0x1e0
[ 3216.078866][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3216.078866][   T73] 
[ 3216.080546][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3216.080828][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3216.080828][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3216.080828][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3216.080828][   T73]      fib6_nh_init+0xa22/0x1580
[ 3216.080828][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3216.080828][   T73]      ip6_route_add+0x1c/0x140
[ 3216.080828][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3216.080828][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3216.080828][   T73]      netlink_rcv_skb+0x130/0x360
[ 3216.080828][   T73]      netlink_unicast+0x449/0x710
[ 3216.080828][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3216.080828][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3216.080828][   T73]      ___sys_sendmsg+0xee/0x170
[ 3216.080828][   T73]      __sys_sendmsg+0xcd/0x170
[ 3216.080828][   T73]      do_syscall_64+0xc6/0x1e0
[ 3216.080828][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3216.080828][   T73] 
[ 3216.082889][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3216.082889][   T73]      dst_init+0x84/0x4a0
[ 3216.082889][   T73]      dst_alloc+0x97/0x150
[ 3216.082889][   T73]      ip6_dst_alloc+0x23/0x90
[ 3216.082889][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3216.082889][   T73]      ip6_pol_route+0x56f/0x840
[ 3216.082889][   T73]      fib6_rule_lookup+0x456/0x630
[ 3216.082889][   T73]      ip6_route_input+0x59c/0xa50
[ 3216.082889][   T73]      ipv6_rcv+0x397/0x810
[ 3216.082889][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3216.082889][   T73]      process_backlog+0x101/0x620
[ 3216.082889][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3216.082889][   T73]      net_rx_action+0x495/0xbe0
[ 3216.082889][   T73]      __do_softirq+0x1b5/0x7f6
[ 3216.082889][   T73] 
[ 3216.084873][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3216.084873][   T73]      netdev_get_by_index+0x5e/0x80
[ 3216.084873][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3216.084873][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3216.084873][   T73]      ip6_route_add+0x1c/0x140
[ 3216.084873][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3216.084873][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3216.084873][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3216.084873][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3216.084873][   T73]      netlink_rcv_skb+0x130/0x360
[ 3216.084873][   T73]      netlink_unicast+0x449/0x710
[ 3216.084873][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3216.084873][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3216.084873][   T73]      ___sys_sendmsg+0xee/0x170
[ 3216.084873][   T73]      __sys_sendmsg+0xcd/0x170
[ 3216.084873][   T73]      do_syscall_64+0xc6/0x1e0
[ 3216.084873][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3216.084873][   T73] 
[ 3216.087102][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3216.087102][   T73]      netdev_get_by_index+0x5e/0x80
[ 3216.087102][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3216.087102][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3216.087102][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3216.087102][   T73]      ipv6_add_addr+0x411/0x2000
[ 3216.087102][   T73]      inet6_addr_add+0x30e/0xa40
[ 3216.087102][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3216.087102][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3216.087102][   T73]      netlink_rcv_skb+0x130/0x360
[ 3216.087102][   T73]      netlink_unicast+0x449/0x710
[ 3216.087102][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3216.087102][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3216.087102][   T73]      ___sys_sendmsg+0xee/0x170
[ 3216.087102][   T73]      __sys_sendmsg+0xcd/0x170
[ 3216.087102][   T73]      do_syscall_64+0xc6/0x1e0
[ 3216.087102][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3216.087102][   T73] 
[ 3216.089330][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3216.089330][   T73]      netdev_get_by_index+0x5e/0x80
[ 3216.089330][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3216.089330][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3216.089330][   T73]      ip6_route_add+0x1c/0x140
[ 3216.089330][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3216.089330][   T73]      addrconf_add_dev+0xe2/0x170
[ 3216.089330][   T73]      inet6_addr_add+0x12f/0xa40
[ 3216.089330][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3216.089330][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3216.089330][   T73]      netlink_rcv_skb+0x130/0x360
[ 3216.089330][   T73]      netlink_unicast+0x449/0x710
[ 3216.089330][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3216.089330][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3216.089330][   T73]      ___sys_sendmsg+0xee/0x170
[ 3216.089330][   T73]      __sys_sendmsg+0xcd/0x170
[ 3216.089330][   T73]      do_syscall_64+0xc6/0x1e0
[ 3216.089330][   T73] 
[ 3216.091477][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3216.091477][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3216.091477][   T73]      ipv6_find_idev+0x102/0x170
[ 3216.091477][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3216.091477][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3216.091477][   T73]      netlink_rcv_skb+0x130/0x360
[ 3216.091477][   T73]      netlink_unicast+0x449/0x710
[ 3216.091477][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3216.091477][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3216.091477][   T73]      ___sys_sendmsg+0xee/0x170
[ 3216.091477][   T73]      __sys_sendmsg+0xcd/0x170
[ 3216.091477][   T73]      do_syscall_64+0xc6/0x1e0
[ 3216.091477][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3216.091477][   T73] 
[ 3216.093255][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3216.093255][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3216.093255][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3216.093255][   T73]      ipv6_find_idev+0x102/0x170
[ 3216.093255][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3216.093255][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3216.093255][   T73]      netlink_rcv_skb+0x130/0x360
[ 3216.093255][   T73]      netlink_unicast+0x449/0x710
[ 3216.093255][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3216.093255][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3216.093255][   T73]      ___sys_sendmsg+0xee/0x170
[ 3216.093255][   T73]      __sys_sendmsg+0xcd/0x170
[ 3216.093255][   T73]      do_syscall_64+0xc6/0x1e0
[ 3216.093255][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3216.093255][   T73] 
[ 3216.095159][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3216.095426][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3216.095426][   T73]      netdev_get_by_index+0x5e/0x80
[ 3216.095426][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3216.095426][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3216.095426][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3216.095426][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3216.095426][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3216.095426][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3216.095426][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3216.095426][   T73]      addrconf_dad_begin+0x310/0x670
[ 3216.095426][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3216.095426][   T73]      process_one_work+0x84d/0x18a0
[ 3216.095426][   T73]      worker_thread+0x587/0xd30
[ 3216.095426][   T73]      kthread+0x28a/0x350
[ 3216.095426][   T73]      ret_from_fork+0x31/0x70
[ 3216.095426][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3216.095426][   T73] 
[ 3216.097578][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3216.097578][   T73]      netdev_get_by_index+0x5e/0x80
[ 3216.097578][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3216.097578][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3216.097578][   T73]      ip6_route_add+0x1c/0x140
[ 3216.097578][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3216.097578][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3216.097578][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3216.097578][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3216.097578][   T73]      netlink_rcv_skb+0x130/0x360
[ 3216.097578][   T73]      netlink_unicast+0x449/0x710
[ 3216.097578][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3216.097578][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3216.097578][   T73]      ___sys_sendmsg+0xee/0x170
[ 3216.097578][   T73]      __sys_sendmsg+0xcd/0x170
[ 3216.097578][   T73]      do_syscall_64+0xc6/0x1e0
[ 3216.097578][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3216.097578][   T73] 
[ 3216.099754][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3216.099754][   T73]      netdev_get_by_index+0x5e/0x80
[ 3216.099754][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3216.099754][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3216.099754][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3216.099754][   T73]      ipv6_add_addr+0x411/0x2000
[ 3216.099754][   T73]      inet6_addr_add+0x30e/0xa40
[ 3216.099754][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3216.099754][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3216.099754][   T73]      netlink_rcv_skb+0x130/0x360
[ 3216.099754][   T73]      netlink_unicast+0x449/0x710
[ 3216.099754][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3216.099754][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3216.099754][   T73]      ___sys_sendmsg+0xee/0x170
[ 3216.099754][   T73]      __sys_sendmsg+0xcd/0x170
[ 3216.099754][   T73]      do_syscall_64+0xc6/0x1e0
[ 3216.099754][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3216.099754][   T73] 
[ 3216.101980][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3216.101980][   T73]      netdev_get_by_index+0x5e/0x80
[ 3216.101980][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3216.101980][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3216.101980][   T73]      ip6_route_add+0x1c/0x140
[ 3216.101980][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3216.101980][   T73]      addrconf_add_dev+0xe2/0x170
[ 3216.101980][   T73]      inet6_addr_add+0x12f/0xa40
[ 3216.101980][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3216.101980][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3216.101980][   T73]      netlink_rcv_skb+0x130/0x360
[ 3216.101980][   T73]      netlink_unicast+0x449/0x710
[ 3216.101980][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3216.101980][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3216.101980][   T73]      ___sys_sendmsg+0xee/0x170
[ 3216.101980][   T73]      __sys_sendmsg+0xcd/0x170
[ 3216.101980][   T73]      do_syscall_64+0xc6/0x1e0
[ 3216.101980][   T73] 
[ 3216.104237][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3216.104237][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3216.104237][   T73]      ipv6_find_idev+0x102/0x170
[ 3216.104237][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3216.104237][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3216.104237][   T73]      netlink_rcv_skb+0x130/0x360
[ 3216.104237][   T73]      netlink_unicast+0x449/0x710
[ 3216.104237][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3216.104237][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3216.104237][   T73]      ___sys_sendmsg+0xee/0x170
[ 3216.104237][   T73]      __sys_sendmsg+0xcd/0x170
[ 3216.104237][   T73]      do_syscall_64+0xc6/0x1e0
[ 3216.104237][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3216.104237][   T73] 
[ 3216.105950][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3216.105950][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3216.105950][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3216.105950][   T73]      ipv6_find_idev+0x102/0x170
[ 3216.105950][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3216.105950][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3216.105950][   T73]      netlink_rcv_skb+0x130/0x360
[ 3216.105950][   T73]      netlink_unicast+0x449/0x710
[ 3216.105950][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3216.105950][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3216.105950][   T73]      ___sys_sendmsg+0xee/0x170
[ 3216.105950][   T73]      __sys_sendmsg+0xcd/0x170
[ 3216.105950][   T73]      do_syscall_64+0xc6/0x1e0
[ 3216.105950][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3216.105950][   T73] 
[ 3226.191807][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3226.192402][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3226.192402][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3226.192402][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3226.192402][   T73]      fib6_nh_init+0xa22/0x1580
[ 3226.192402][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3226.192402][   T73]      ip6_route_add+0x1c/0x140
[ 3226.192402][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3226.192402][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3226.192402][   T73]      netlink_rcv_skb+0x130/0x360
[ 3226.192402][   T73]      netlink_unicast+0x449/0x710
[ 3226.192402][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3226.192402][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3226.192402][   T73]      ___sys_sendmsg+0xee/0x170
[ 3226.192402][   T73]      __sys_sendmsg+0xcd/0x170
[ 3226.192402][   T73]      do_syscall_64+0xc6/0x1e0
[ 3226.192402][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3226.192402][   T73] 
[ 3226.195386][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3226.195386][   T73]      dst_init+0x84/0x4a0
[ 3226.195386][   T73]      dst_alloc+0x97/0x150
[ 3226.195386][   T73]      ip6_dst_alloc+0x23/0x90
[ 3226.195386][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3226.195386][   T73]      ip6_pol_route+0x56f/0x840
[ 3226.195386][   T73]      fib6_rule_lookup+0x456/0x630
[ 3226.195386][   T73]      ip6_route_input+0x59c/0xa50
[ 3226.195386][   T73]      ipv6_rcv+0x397/0x810
[ 3226.195386][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3226.195386][   T73]      process_backlog+0x101/0x620
[ 3226.195386][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3226.195386][   T73]      net_rx_action+0x495/0xbe0
[ 3226.195386][   T73]      __do_softirq+0x1b5/0x7f6
[ 3226.195386][   T73] 
[ 3226.197963][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3226.197963][   T73]      netdev_get_by_index+0x5e/0x80
[ 3226.197963][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3226.197963][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3226.197963][   T73]      ip6_route_add+0x1c/0x140
[ 3226.197963][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3226.197963][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3226.197963][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3226.197963][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3226.197963][   T73]      netlink_rcv_skb+0x130/0x360
[ 3226.197963][   T73]      netlink_unicast+0x449/0x710
[ 3226.197963][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3226.197963][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3226.197963][   T73]      ___sys_sendmsg+0xee/0x170
[ 3226.197963][   T73]      __sys_sendmsg+0xcd/0x170
[ 3226.197963][   T73]      do_syscall_64+0xc6/0x1e0
[ 3226.197963][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3226.197963][   T73] 
[ 3226.201101][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3226.201101][   T73]      netdev_get_by_index+0x5e/0x80
[ 3226.201101][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3226.201101][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3226.201101][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3226.201101][   T73]      ipv6_add_addr+0x411/0x2000
[ 3226.201101][   T73]      inet6_addr_add+0x30e/0xa40
[ 3226.201101][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3226.201101][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3226.201101][   T73]      netlink_rcv_skb+0x130/0x360
[ 3226.201101][   T73]      netlink_unicast+0x449/0x710
[ 3226.201101][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3226.201101][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3226.201101][   T73]      ___sys_sendmsg+0xee/0x170
[ 3226.201101][   T73]      __sys_sendmsg+0xcd/0x170
[ 3226.201101][   T73]      do_syscall_64+0xc6/0x1e0
[ 3226.201101][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3226.201101][   T73] 
[ 3226.204251][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3226.204251][   T73]      netdev_get_by_index+0x5e/0x80
[ 3226.204251][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3226.204251][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3226.204251][   T73]      ip6_route_add+0x1c/0x140
[ 3226.204251][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3226.204251][   T73]      addrconf_add_dev+0xe2/0x170
[ 3226.204251][   T73]      inet6_addr_add+0x12f/0xa40
[ 3226.204251][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3226.204251][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3226.204251][   T73]      netlink_rcv_skb+0x130/0x360
[ 3226.204251][   T73]      netlink_unicast+0x449/0x710
[ 3226.204251][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3226.204251][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3226.204251][   T73]      ___sys_sendmsg+0xee/0x170
[ 3226.204251][   T73]      __sys_sendmsg+0xcd/0x170
[ 3226.204251][   T73]      do_syscall_64+0xc6/0x1e0
[ 3226.204251][   T73] 
[ 3226.207328][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3226.207328][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3226.207328][   T73]      ipv6_find_idev+0x102/0x170
[ 3226.207328][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3226.207328][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3226.207328][   T73]      netlink_rcv_skb+0x130/0x360
[ 3226.207328][   T73]      netlink_unicast+0x449/0x710
[ 3226.207328][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3226.207328][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3226.207328][   T73]      ___sys_sendmsg+0xee/0x170
[ 3226.207328][   T73]      __sys_sendmsg+0xcd/0x170
[ 3226.207328][   T73]      do_syscall_64+0xc6/0x1e0
[ 3226.207328][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3226.207328][   T73] 
[ 3226.209746][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3226.209746][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3226.209746][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3226.209746][   T73]      ipv6_find_idev+0x102/0x170
[ 3226.209746][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3226.209746][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3226.209746][   T73]      netlink_rcv_skb+0x130/0x360
[ 3226.209746][   T73]      netlink_unicast+0x449/0x710
[ 3226.209746][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3226.209746][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3226.209746][   T73]      ___sys_sendmsg+0xee/0x170
[ 3226.209746][   T73]      __sys_sendmsg+0xcd/0x170
[ 3226.209746][   T73]      do_syscall_64+0xc6/0x1e0
[ 3226.209746][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3226.209746][   T73] 
[ 3226.212411][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3226.212861][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3226.212861][   T73]      netdev_get_by_index+0x5e/0x80
[ 3226.212861][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3226.212861][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3226.212861][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3226.212861][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3226.212861][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3226.212861][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3226.212861][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3226.212861][   T73]      addrconf_dad_begin+0x310/0x670
[ 3226.212861][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3226.212861][   T73]      process_one_work+0x84d/0x18a0
[ 3226.212861][   T73]      worker_thread+0x587/0xd30
[ 3226.212861][   T73]      kthread+0x28a/0x350
[ 3226.212861][   T73]      ret_from_fork+0x31/0x70
[ 3226.212861][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3226.212861][   T73] 
[ 3226.215850][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3226.215850][   T73]      netdev_get_by_index+0x5e/0x80
[ 3226.215850][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3226.215850][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3226.215850][   T73]      ip6_route_add+0x1c/0x140
[ 3226.215850][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3226.215850][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3226.215850][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3226.215850][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3226.215850][   T73]      netlink_rcv_skb+0x130/0x360
[ 3226.215850][   T73]      netlink_unicast+0x449/0x710
[ 3226.215850][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3226.215850][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3226.215850][   T73]      ___sys_sendmsg+0xee/0x170
[ 3226.215850][   T73]      __sys_sendmsg+0xcd/0x170
[ 3226.215850][   T73]      do_syscall_64+0xc6/0x1e0
[ 3226.215850][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3226.215850][   T73] 
[ 3226.218976][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3226.218976][   T73]      netdev_get_by_index+0x5e/0x80
[ 3226.218976][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3226.218976][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3226.218976][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3226.218976][   T73]      ipv6_add_addr+0x411/0x2000
[ 3226.218976][   T73]      inet6_addr_add+0x30e/0xa40
[ 3226.218976][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3226.218976][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3226.218976][   T73]      netlink_rcv_skb+0x130/0x360
[ 3226.218976][   T73]      netlink_unicast+0x449/0x710
[ 3226.218976][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3226.218976][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3226.218976][   T73]      ___sys_sendmsg+0xee/0x170
[ 3226.218976][   T73]      __sys_sendmsg+0xcd/0x170
[ 3226.218976][   T73]      do_syscall_64+0xc6/0x1e0
[ 3226.218976][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3226.218976][   T73] 
[ 3226.222113][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3226.222113][   T73]      netdev_get_by_index+0x5e/0x80
[ 3226.222113][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3226.222113][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3226.222113][   T73]      ip6_route_add+0x1c/0x140
[ 3226.222113][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3226.222113][   T73]      addrconf_add_dev+0xe2/0x170
[ 3226.222113][   T73]      inet6_addr_add+0x12f/0xa40
[ 3226.222113][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3226.222113][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3226.222113][   T73]      netlink_rcv_skb+0x130/0x360
[ 3226.222113][   T73]      netlink_unicast+0x449/0x710
[ 3226.222113][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3226.222113][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3226.222113][   T73]      ___sys_sendmsg+0xee/0x170
[ 3226.222113][   T73]      __sys_sendmsg+0xcd/0x170
[ 3226.222113][   T73]      do_syscall_64+0xc6/0x1e0
[ 3226.222113][   T73] 
[ 3226.225177][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3226.225177][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3226.225177][   T73]      ipv6_find_idev+0x102/0x170
[ 3226.225177][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3226.225177][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3226.225177][   T73]      netlink_rcv_skb+0x130/0x360
[ 3226.225177][   T73]      netlink_unicast+0x449/0x710
[ 3226.225177][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3226.225177][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3226.225177][   T73]      ___sys_sendmsg+0xee/0x170
[ 3226.225177][   T73]      __sys_sendmsg+0xcd/0x170
[ 3226.225177][   T73]      do_syscall_64+0xc6/0x1e0
[ 3226.225177][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3226.225177][   T73] 
[ 3226.227616][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3226.227616][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3226.227616][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3226.227616][   T73]      ipv6_find_idev+0x102/0x170
[ 3226.227616][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3226.227616][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3226.227616][   T73]      netlink_rcv_skb+0x130/0x360
[ 3226.227616][   T73]      netlink_unicast+0x449/0x710
[ 3226.227616][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3226.227616][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3226.227616][   T73]      ___sys_sendmsg+0xee/0x170
[ 3226.227616][   T73]      __sys_sendmsg+0xcd/0x170
[ 3226.227616][   T73]      do_syscall_64+0xc6/0x1e0
[ 3226.227616][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3226.227616][   T73] 
[ 3226.230274][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3226.230691][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3226.230691][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3226.230691][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3226.230691][   T73]      fib6_nh_init+0xa22/0x1580
[ 3226.230691][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3226.230691][   T73]      ip6_route_add+0x1c/0x140
[ 3226.230691][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3226.230691][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3226.230691][   T73]      netlink_rcv_skb+0x130/0x360
[ 3226.230691][   T73]      netlink_unicast+0x449/0x710
[ 3226.230691][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3226.230691][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3226.230691][   T73]      ___sys_sendmsg+0xee/0x170
[ 3226.230691][   T73]      __sys_sendmsg+0xcd/0x170
[ 3226.230691][   T73]      do_syscall_64+0xc6/0x1e0
[ 3226.230691][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3226.230691][   T73] 
[ 3226.234912][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3226.234912][   T73]      dst_init+0x84/0x4a0
[ 3226.234912][   T73]      dst_alloc+0x97/0x150
[ 3226.234912][   T73]      ip6_dst_alloc+0x23/0x90
[ 3226.234912][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3226.234912][   T73]      ip6_pol_route+0x56f/0x840
[ 3226.234912][   T73]      fib6_rule_lookup+0x456/0x630
[ 3226.234912][   T73]      ip6_route_input+0x59c/0xa50
[ 3226.234912][   T73]      ipv6_rcv+0x397/0x810
[ 3226.234912][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3226.234912][   T73]      process_backlog+0x101/0x620
[ 3226.234912][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3226.234912][   T73]      net_rx_action+0x495/0xbe0
[ 3226.234912][   T73]      __do_softirq+0x1b5/0x7f6
[ 3226.234912][   T73] 
[ 3226.237796][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3226.237796][   T73]      netdev_get_by_index+0x5e/0x80
[ 3226.237796][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3226.237796][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3226.237796][   T73]      ip6_route_add+0x1c/0x140
[ 3226.237796][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3226.237796][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3226.237796][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3226.237796][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3226.237796][   T73]      netlink_rcv_skb+0x130/0x360
[ 3226.237796][   T73]      netlink_unicast+0x449/0x710
[ 3226.237796][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3226.237796][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3226.237796][   T73]      ___sys_sendmsg+0xee/0x170
[ 3226.237796][   T73]      __sys_sendmsg+0xcd/0x170
[ 3226.237796][   T73]      do_syscall_64+0xc6/0x1e0
[ 3226.237796][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3226.237796][   T73] 
[ 3226.241363][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3226.241363][   T73]      netdev_get_by_index+0x5e/0x80
[ 3226.241363][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3226.241363][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3226.241363][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3226.241363][   T73]      ipv6_add_addr+0x411/0x2000
[ 3226.241363][   T73]      inet6_addr_add+0x30e/0xa40
[ 3226.241363][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3226.241363][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3226.241363][   T73]      netlink_rcv_skb+0x130/0x360
[ 3226.241363][   T73]      netlink_unicast+0x449/0x710
[ 3226.241363][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3226.241363][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3226.241363][   T73]      ___sys_sendmsg+0xee/0x170
[ 3226.241363][   T73]      __sys_sendmsg+0xcd/0x170
[ 3226.241363][   T73]      do_syscall_64+0xc6/0x1e0
[ 3226.241363][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3226.241363][   T73] 
[ 3226.244929][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3226.244929][   T73]      netdev_get_by_index+0x5e/0x80
[ 3226.244929][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3226.244929][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3226.244929][   T73]      ip6_route_add+0x1c/0x140
[ 3226.244929][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3226.244929][   T73]      addrconf_add_dev+0xe2/0x170
[ 3226.244929][   T73]      inet6_addr_add+0x12f/0xa40
[ 3226.244929][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3226.244929][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3226.244929][   T73]      netlink_rcv_skb+0x130/0x360
[ 3226.244929][   T73]      netlink_unicast+0x449/0x710
[ 3226.244929][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3226.244929][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3226.244929][   T73]      ___sys_sendmsg+0xee/0x170
[ 3226.244929][   T73]      __sys_sendmsg+0xcd/0x170
[ 3226.244929][   T73]      do_syscall_64+0xc6/0x1e0
[ 3226.244929][   T73] 
[ 3226.248431][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3226.248431][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3226.248431][   T73]      ipv6_find_idev+0x102/0x170
[ 3226.248431][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3226.248431][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3226.248431][   T73]      netlink_rcv_skb+0x130/0x360
[ 3226.248431][   T73]      netlink_unicast+0x449/0x710
[ 3226.248431][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3226.248431][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3226.248431][   T73]      ___sys_sendmsg+0xee/0x170
[ 3226.248431][   T73]      __sys_sendmsg+0xcd/0x170
[ 3226.248431][   T73]      do_syscall_64+0xc6/0x1e0
[ 3226.248431][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3226.248431][   T73] 
[ 3226.251172][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3226.251172][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3226.251172][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3226.251172][   T73]      ipv6_find_idev+0x102/0x170
[ 3226.251172][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3226.251172][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3226.251172][   T73]      netlink_rcv_skb+0x130/0x360
[ 3226.251172][   T73]      netlink_unicast+0x449/0x710
[ 3226.251172][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3226.251172][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3226.251172][   T73]      ___sys_sendmsg+0xee/0x170
[ 3226.251172][   T73]      __sys_sendmsg+0xcd/0x170
[ 3226.251172][   T73]      do_syscall_64+0xc6/0x1e0
[ 3226.251172][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3226.251172][   T73] 
[ 3226.254143][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3226.254675][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3226.254675][   T73]      netdev_get_by_index+0x5e/0x80
[ 3226.254675][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3226.254675][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3226.254675][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3226.254675][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3226.254675][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3226.254675][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3226.254675][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3226.254675][   T73]      addrconf_dad_begin+0x310/0x670
[ 3226.254675][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3226.254675][   T73]      process_one_work+0x84d/0x18a0
[ 3226.254675][   T73]      worker_thread+0x587/0xd30
[ 3226.254675][   T73]      kthread+0x28a/0x350
[ 3226.254675][   T73]      ret_from_fork+0x31/0x70
[ 3226.254675][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3226.254675][   T73] 
[ 3226.257869][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3226.257869][   T73]      netdev_get_by_index+0x5e/0x80
[ 3226.257869][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3226.257869][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3226.257869][   T73]      ip6_route_add+0x1c/0x140
[ 3226.257869][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3226.257869][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3226.257869][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3226.257869][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3226.257869][   T73]      netlink_rcv_skb+0x130/0x360
[ 3226.257869][   T73]      netlink_unicast+0x449/0x710
[ 3226.257869][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3226.257869][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3226.257869][   T73]      ___sys_sendmsg+0xee/0x170
[ 3226.257869][   T73]      __sys_sendmsg+0xcd/0x170
[ 3226.257869][   T73]      do_syscall_64+0xc6/0x1e0
[ 3226.257869][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3226.257869][   T73] 
[ 3226.261608][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3226.261608][   T73]      netdev_get_by_index+0x5e/0x80
[ 3226.261608][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3226.261608][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3226.261608][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3226.261608][   T73]      ipv6_add_addr+0x411/0x2000
[ 3226.261608][   T73]      inet6_addr_add+0x30e/0xa40
[ 3226.261608][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3226.261608][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3226.261608][   T73]      netlink_rcv_skb+0x130/0x360
[ 3226.261608][   T73]      netlink_unicast+0x449/0x710
[ 3226.261608][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3226.261608][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3226.261608][   T73]      ___sys_sendmsg+0xee/0x170
[ 3226.261608][   T73]      __sys_sendmsg+0xcd/0x170
[ 3226.261608][   T73]      do_syscall_64+0xc6/0x1e0
[ 3226.261608][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3226.261608][   T73] 
[ 3226.265193][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3226.265193][   T73]      netdev_get_by_index+0x5e/0x80
[ 3226.265193][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3226.265193][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3226.265193][   T73]      ip6_route_add+0x1c/0x140
[ 3226.265193][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3226.265193][   T73]      addrconf_add_dev+0xe2/0x170
[ 3226.265193][   T73]      inet6_addr_add+0x12f/0xa40
[ 3226.265193][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3226.265193][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3226.265193][   T73]      netlink_rcv_skb+0x130/0x360
[ 3226.265193][   T73]      netlink_unicast+0x449/0x710
[ 3226.265193][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3226.265193][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3226.265193][   T73]      ___sys_sendmsg+0xee/0x170
[ 3226.265193][   T73]      __sys_sendmsg+0xcd/0x170
[ 3226.265193][   T73]      do_syscall_64+0xc6/0x1e0
[ 3226.265193][   T73] 
[ 3226.273473][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3226.273473][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3226.273473][   T73]      ipv6_find_idev+0x102/0x170
[ 3226.273473][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3226.273473][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3226.273473][   T73]      netlink_rcv_skb+0x130/0x360
[ 3226.273473][   T73]      netlink_unicast+0x449/0x710
[ 3226.273473][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3226.273473][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3226.273473][   T73]      ___sys_sendmsg+0xee/0x170
[ 3226.273473][   T73]      __sys_sendmsg+0xcd/0x170
[ 3226.273473][   T73]      do_syscall_64+0xc6/0x1e0
[ 3226.273473][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3226.273473][   T73] 
[ 3226.276233][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3226.276233][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3226.276233][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3226.276233][   T73]      ipv6_find_idev+0x102/0x170
[ 3226.276233][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3226.276233][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3226.276233][   T73]      netlink_rcv_skb+0x130/0x360
[ 3226.276233][   T73]      netlink_unicast+0x449/0x710
[ 3226.276233][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3226.276233][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3226.276233][   T73]      ___sys_sendmsg+0xee/0x170
[ 3226.276233][   T73]      __sys_sendmsg+0xcd/0x170
[ 3226.276233][   T73]      do_syscall_64+0xc6/0x1e0
[ 3226.276233][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3226.276233][   T73] 
[ 3236.351784][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3236.352264][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3236.352264][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3236.352264][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3236.352264][   T73]      fib6_nh_init+0xa22/0x1580
[ 3236.352264][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3236.352264][   T73]      ip6_route_add+0x1c/0x140
[ 3236.352264][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3236.352264][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3236.352264][   T73]      netlink_rcv_skb+0x130/0x360
[ 3236.352264][   T73]      netlink_unicast+0x449/0x710
[ 3236.352264][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3236.352264][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3236.352264][   T73]      ___sys_sendmsg+0xee/0x170
[ 3236.352264][   T73]      __sys_sendmsg+0xcd/0x170
[ 3236.352264][   T73]      do_syscall_64+0xc6/0x1e0
[ 3236.352264][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3236.352264][   T73] 
[ 3236.357246][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3236.357246][   T73]      dst_init+0x84/0x4a0
[ 3236.357246][   T73]      dst_alloc+0x97/0x150
[ 3236.357246][   T73]      ip6_dst_alloc+0x23/0x90
[ 3236.357246][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3236.357246][   T73]      ip6_pol_route+0x56f/0x840
[ 3236.357246][   T73]      fib6_rule_lookup+0x456/0x630
[ 3236.357246][   T73]      ip6_route_input+0x59c/0xa50
[ 3236.357246][   T73]      ipv6_rcv+0x397/0x810
[ 3236.357246][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3236.357246][   T73]      process_backlog+0x101/0x620
[ 3236.357246][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3236.357246][   T73]      net_rx_action+0x495/0xbe0
[ 3236.357246][   T73]      __do_softirq+0x1b5/0x7f6
[ 3236.357246][   T73] 
[ 3236.358917][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3236.358917][   T73]      netdev_get_by_index+0x5e/0x80
[ 3236.358917][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3236.358917][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3236.358917][   T73]      ip6_route_add+0x1c/0x140
[ 3236.358917][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3236.358917][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3236.358917][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3236.358917][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3236.358917][   T73]      netlink_rcv_skb+0x130/0x360
[ 3236.358917][   T73]      netlink_unicast+0x449/0x710
[ 3236.358917][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3236.358917][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3236.358917][   T73]      ___sys_sendmsg+0xee/0x170
[ 3236.358917][   T73]      __sys_sendmsg+0xcd/0x170
[ 3236.358917][   T73]      do_syscall_64+0xc6/0x1e0
[ 3236.358917][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3236.358917][   T73] 
[ 3236.360919][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3236.360919][   T73]      netdev_get_by_index+0x5e/0x80
[ 3236.360919][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3236.360919][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3236.360919][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3236.360919][   T73]      ipv6_add_addr+0x411/0x2000
[ 3236.360919][   T73]      inet6_addr_add+0x30e/0xa40
[ 3236.360919][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3236.360919][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3236.360919][   T73]      netlink_rcv_skb+0x130/0x360
[ 3236.360919][   T73]      netlink_unicast+0x449/0x710
[ 3236.360919][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3236.360919][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3236.360919][   T73]      ___sys_sendmsg+0xee/0x170
[ 3236.360919][   T73]      __sys_sendmsg+0xcd/0x170
[ 3236.360919][   T73]      do_syscall_64+0xc6/0x1e0
[ 3236.360919][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3236.360919][   T73] 
[ 3236.362910][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3236.362910][   T73]      netdev_get_by_index+0x5e/0x80
[ 3236.362910][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3236.362910][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3236.362910][   T73]      ip6_route_add+0x1c/0x140
[ 3236.362910][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3236.362910][   T73]      addrconf_add_dev+0xe2/0x170
[ 3236.362910][   T73]      inet6_addr_add+0x12f/0xa40
[ 3236.362910][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3236.362910][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3236.362910][   T73]      netlink_rcv_skb+0x130/0x360
[ 3236.362910][   T73]      netlink_unicast+0x449/0x710
[ 3236.362910][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3236.362910][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3236.362910][   T73]      ___sys_sendmsg+0xee/0x170
[ 3236.362910][   T73]      __sys_sendmsg+0xcd/0x170
[ 3236.362910][   T73]      do_syscall_64+0xc6/0x1e0
[ 3236.362910][   T73] 
[ 3236.364875][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3236.364875][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3236.364875][   T73]      ipv6_find_idev+0x102/0x170
[ 3236.364875][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3236.364875][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3236.364875][   T73]      netlink_rcv_skb+0x130/0x360
[ 3236.364875][   T73]      netlink_unicast+0x449/0x710
[ 3236.364875][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3236.364875][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3236.364875][   T73]      ___sys_sendmsg+0xee/0x170
[ 3236.364875][   T73]      __sys_sendmsg+0xcd/0x170
[ 3236.364875][   T73]      do_syscall_64+0xc6/0x1e0
[ 3236.364875][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3236.364875][   T73] 
[ 3236.366410][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3236.366410][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3236.366410][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3236.366410][   T73]      ipv6_find_idev+0x102/0x170
[ 3236.366410][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3236.366410][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3236.366410][   T73]      netlink_rcv_skb+0x130/0x360
[ 3236.366410][   T73]      netlink_unicast+0x449/0x710
[ 3236.366410][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3236.366410][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3236.366410][   T73]      ___sys_sendmsg+0xee/0x170
[ 3236.366410][   T73]      __sys_sendmsg+0xcd/0x170
[ 3236.366410][   T73]      do_syscall_64+0xc6/0x1e0
[ 3236.366410][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3236.366410][   T73] 
[ 3236.368099][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3236.368390][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3236.368390][   T73]      netdev_get_by_index+0x5e/0x80
[ 3236.368390][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3236.368390][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3236.368390][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3236.368390][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3236.368390][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3236.368390][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3236.368390][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3236.368390][   T73]      addrconf_dad_begin+0x310/0x670
[ 3236.368390][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3236.368390][   T73]      process_one_work+0x84d/0x18a0
[ 3236.368390][   T73]      worker_thread+0x587/0xd30
[ 3236.368390][   T73]      kthread+0x28a/0x350
[ 3236.368390][   T73]      ret_from_fork+0x31/0x70
[ 3236.368390][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3236.368390][   T73] 
[ 3236.370312][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3236.370312][   T73]      netdev_get_by_index+0x5e/0x80
[ 3236.370312][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3236.370312][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3236.370312][   T73]      ip6_route_add+0x1c/0x140
[ 3236.370312][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3236.370312][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3236.370312][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3236.370312][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3236.370312][   T73]      netlink_rcv_skb+0x130/0x360
[ 3236.370312][   T73]      netlink_unicast+0x449/0x710
[ 3236.370312][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3236.370312][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3236.370312][   T73]      ___sys_sendmsg+0xee/0x170
[ 3236.370312][   T73]      __sys_sendmsg+0xcd/0x170
[ 3236.370312][   T73]      do_syscall_64+0xc6/0x1e0
[ 3236.370312][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3236.370312][   T73] 
[ 3236.372303][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3236.372303][   T73]      netdev_get_by_index+0x5e/0x80
[ 3236.372303][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3236.372303][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3236.372303][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3236.372303][   T73]      ipv6_add_addr+0x411/0x2000
[ 3236.372303][   T73]      inet6_addr_add+0x30e/0xa40
[ 3236.372303][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3236.372303][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3236.372303][   T73]      netlink_rcv_skb+0x130/0x360
[ 3236.372303][   T73]      netlink_unicast+0x449/0x710
[ 3236.372303][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3236.372303][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3236.372303][   T73]      ___sys_sendmsg+0xee/0x170
[ 3236.372303][   T73]      __sys_sendmsg+0xcd/0x170
[ 3236.372303][   T73]      do_syscall_64+0xc6/0x1e0
[ 3236.372303][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3236.372303][   T73] 
[ 3236.374294][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3236.374294][   T73]      netdev_get_by_index+0x5e/0x80
[ 3236.374294][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3236.374294][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3236.374294][   T73]      ip6_route_add+0x1c/0x140
[ 3236.374294][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3236.374294][   T73]      addrconf_add_dev+0xe2/0x170
[ 3236.374294][   T73]      inet6_addr_add+0x12f/0xa40
[ 3236.374294][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3236.374294][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3236.374294][   T73]      netlink_rcv_skb+0x130/0x360
[ 3236.374294][   T73]      netlink_unicast+0x449/0x710
[ 3236.374294][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3236.374294][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3236.374294][   T73]      ___sys_sendmsg+0xee/0x170
[ 3236.374294][   T73]      __sys_sendmsg+0xcd/0x170
[ 3236.374294][   T73]      do_syscall_64+0xc6/0x1e0
[ 3236.374294][   T73] 
[ 3236.376248][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3236.376248][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3236.376248][   T73]      ipv6_find_idev+0x102/0x170
[ 3236.376248][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3236.376248][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3236.376248][   T73]      netlink_rcv_skb+0x130/0x360
[ 3236.376248][   T73]      netlink_unicast+0x449/0x710
[ 3236.376248][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3236.376248][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3236.376248][   T73]      ___sys_sendmsg+0xee/0x170
[ 3236.376248][   T73]      __sys_sendmsg+0xcd/0x170
[ 3236.376248][   T73]      do_syscall_64+0xc6/0x1e0
[ 3236.376248][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3236.376248][   T73] 
[ 3236.377782][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3236.377782][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3236.377782][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3236.377782][   T73]      ipv6_find_idev+0x102/0x170
[ 3236.377782][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3236.377782][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3236.377782][   T73]      netlink_rcv_skb+0x130/0x360
[ 3236.377782][   T73]      netlink_unicast+0x449/0x710
[ 3236.377782][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3236.377782][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3236.377782][   T73]      ___sys_sendmsg+0xee/0x170
[ 3236.377782][   T73]      __sys_sendmsg+0xcd/0x170
[ 3236.377782][   T73]      do_syscall_64+0xc6/0x1e0
[ 3236.377782][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3236.377782][   T73] 
[ 3236.379460][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3236.379765][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3236.379765][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3236.379765][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3236.379765][   T73]      fib6_nh_init+0xa22/0x1580
[ 3236.379765][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3236.379765][   T73]      ip6_route_add+0x1c/0x140
[ 3236.379765][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3236.379765][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3236.379765][   T73]      netlink_rcv_skb+0x130/0x360
[ 3236.379765][   T73]      netlink_unicast+0x449/0x710
[ 3236.379765][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3236.379765][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3236.379765][   T73]      ___sys_sendmsg+0xee/0x170
[ 3236.379765][   T73]      __sys_sendmsg+0xcd/0x170
[ 3236.379765][   T73]      do_syscall_64+0xc6/0x1e0
[ 3236.379765][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3236.379765][   T73] 
[ 3236.381827][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3236.381827][   T73]      dst_init+0x84/0x4a0
[ 3236.381827][   T73]      dst_alloc+0x97/0x150
[ 3236.381827][   T73]      ip6_dst_alloc+0x23/0x90
[ 3236.381827][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3236.381827][   T73]      ip6_pol_route+0x56f/0x840
[ 3236.381827][   T73]      fib6_rule_lookup+0x456/0x630
[ 3236.381827][   T73]      ip6_route_input+0x59c/0xa50
[ 3236.381827][   T73]      ipv6_rcv+0x397/0x810
[ 3236.381827][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3236.381827][   T73]      process_backlog+0x101/0x620
[ 3236.381827][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3236.381827][   T73]      net_rx_action+0x495/0xbe0
[ 3236.381827][   T73]      __do_softirq+0x1b5/0x7f6
[ 3236.381827][   T73] 
[ 3236.383699][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3236.383699][   T73]      netdev_get_by_index+0x5e/0x80
[ 3236.383699][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3236.383699][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3236.383699][   T73]      ip6_route_add+0x1c/0x140
[ 3236.383699][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3236.383699][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3236.383699][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3236.383699][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3236.383699][   T73]      netlink_rcv_skb+0x130/0x360
[ 3236.383699][   T73]      netlink_unicast+0x449/0x710
[ 3236.383699][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3236.383699][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3236.383699][   T73]      ___sys_sendmsg+0xee/0x170
[ 3236.383699][   T73]      __sys_sendmsg+0xcd/0x170
[ 3236.383699][   T73]      do_syscall_64+0xc6/0x1e0
[ 3236.383699][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3236.383699][   T73] 
[ 3236.385929][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3236.385929][   T73]      netdev_get_by_index+0x5e/0x80
[ 3236.385929][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3236.385929][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3236.385929][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3236.385929][   T73]      ipv6_add_addr+0x411/0x2000
[ 3236.385929][   T73]      inet6_addr_add+0x30e/0xa40
[ 3236.385929][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3236.385929][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3236.385929][   T73]      netlink_rcv_skb+0x130/0x360
[ 3236.385929][   T73]      netlink_unicast+0x449/0x710
[ 3236.385929][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3236.385929][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3236.385929][   T73]      ___sys_sendmsg+0xee/0x170
[ 3236.385929][   T73]      __sys_sendmsg+0xcd/0x170
[ 3236.385929][   T73]      do_syscall_64+0xc6/0x1e0
[ 3236.385929][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3236.385929][   T73] 
[ 3236.388159][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3236.388159][   T73]      netdev_get_by_index+0x5e/0x80
[ 3236.388159][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3236.388159][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3236.388159][   T73]      ip6_route_add+0x1c/0x140
[ 3236.388159][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3236.388159][   T73]      addrconf_add_dev+0xe2/0x170
[ 3236.388159][   T73]      inet6_addr_add+0x12f/0xa40
[ 3236.388159][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3236.388159][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3236.388159][   T73]      netlink_rcv_skb+0x130/0x360
[ 3236.388159][   T73]      netlink_unicast+0x449/0x710
[ 3236.388159][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3236.388159][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3236.388159][   T73]      ___sys_sendmsg+0xee/0x170
[ 3236.388159][   T73]      __sys_sendmsg+0xcd/0x170
[ 3236.388159][   T73]      do_syscall_64+0xc6/0x1e0
[ 3236.388159][   T73] 
[ 3236.390367][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3236.390367][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3236.390367][   T73]      ipv6_find_idev+0x102/0x170
[ 3236.390367][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3236.390367][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3236.390367][   T73]      netlink_rcv_skb+0x130/0x360
[ 3236.390367][   T73]      netlink_unicast+0x449/0x710
[ 3236.390367][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3236.390367][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3236.390367][   T73]      ___sys_sendmsg+0xee/0x170
[ 3236.390367][   T73]      __sys_sendmsg+0xcd/0x170
[ 3236.390367][   T73]      do_syscall_64+0xc6/0x1e0
[ 3236.390367][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3236.390367][   T73] 
[ 3236.392137][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3236.392137][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3236.392137][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3236.392137][   T73]      ipv6_find_idev+0x102/0x170
[ 3236.392137][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3236.392137][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3236.392137][   T73]      netlink_rcv_skb+0x130/0x360
[ 3236.392137][   T73]      netlink_unicast+0x449/0x710
[ 3236.392137][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3236.392137][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3236.392137][   T73]      ___sys_sendmsg+0xee/0x170
[ 3236.392137][   T73]      __sys_sendmsg+0xcd/0x170
[ 3236.392137][   T73]      do_syscall_64+0xc6/0x1e0
[ 3236.392137][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3236.392137][   T73] 
[ 3236.393994][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3236.394267][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3236.394267][   T73]      netdev_get_by_index+0x5e/0x80
[ 3236.394267][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3236.394267][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3236.394267][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3236.394267][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3236.394267][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3236.394267][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3236.394267][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3236.394267][   T73]      addrconf_dad_begin+0x310/0x670
[ 3236.394267][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3236.394267][   T73]      process_one_work+0x84d/0x18a0
[ 3236.394267][   T73]      worker_thread+0x587/0xd30
[ 3236.394267][   T73]      kthread+0x28a/0x350
[ 3236.394267][   T73]      ret_from_fork+0x31/0x70
[ 3236.394267][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3236.394267][   T73] 
[ 3236.396417][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3236.396417][   T73]      netdev_get_by_index+0x5e/0x80
[ 3236.396417][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3236.396417][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3236.396417][   T73]      ip6_route_add+0x1c/0x140
[ 3236.396417][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3236.396417][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3236.396417][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3236.396417][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3236.396417][   T73]      netlink_rcv_skb+0x130/0x360
[ 3236.396417][   T73]      netlink_unicast+0x449/0x710
[ 3236.396417][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3236.396417][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3236.396417][   T73]      ___sys_sendmsg+0xee/0x170
[ 3236.396417][   T73]      __sys_sendmsg+0xcd/0x170
[ 3236.396417][   T73]      do_syscall_64+0xc6/0x1e0
[ 3236.396417][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3236.396417][   T73] 
[ 3236.398656][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3236.398656][   T73]      netdev_get_by_index+0x5e/0x80
[ 3236.398656][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3236.398656][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3236.398656][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3236.398656][   T73]      ipv6_add_addr+0x411/0x2000
[ 3236.398656][   T73]      inet6_addr_add+0x30e/0xa40
[ 3236.398656][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3236.398656][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3236.398656][   T73]      netlink_rcv_skb+0x130/0x360
[ 3236.398656][   T73]      netlink_unicast+0x449/0x710
[ 3236.398656][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3236.398656][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3236.398656][   T73]      ___sys_sendmsg+0xee/0x170
[ 3236.398656][   T73]      __sys_sendmsg+0xcd/0x170
[ 3236.398656][   T73]      do_syscall_64+0xc6/0x1e0
[ 3236.398656][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3236.398656][   T73] 
[ 3236.400977][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3236.400977][   T73]      netdev_get_by_index+0x5e/0x80
[ 3236.400977][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3236.400977][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3236.400977][   T73]      ip6_route_add+0x1c/0x140
[ 3236.400977][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3236.400977][   T73]      addrconf_add_dev+0xe2/0x170
[ 3236.400977][   T73]      inet6_addr_add+0x12f/0xa40
[ 3236.400977][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3236.400977][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3236.400977][   T73]      netlink_rcv_skb+0x130/0x360
[ 3236.400977][   T73]      netlink_unicast+0x449/0x710
[ 3236.400977][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3236.400977][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3236.400977][   T73]      ___sys_sendmsg+0xee/0x170
[ 3236.400977][   T73]      __sys_sendmsg+0xcd/0x170
[ 3236.400977][   T73]      do_syscall_64+0xc6/0x1e0
[ 3236.400977][   T73] 
[ 3236.403124][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3236.403124][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3236.403124][   T73]      ipv6_find_idev+0x102/0x170
[ 3236.403124][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3236.403124][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3236.403124][   T73]      netlink_rcv_skb+0x130/0x360
[ 3236.403124][   T73]      netlink_unicast+0x449/0x710
[ 3236.403124][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3236.403124][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3236.403124][   T73]      ___sys_sendmsg+0xee/0x170
[ 3236.403124][   T73]      __sys_sendmsg+0xcd/0x170
[ 3236.403124][   T73]      do_syscall_64+0xc6/0x1e0
[ 3236.403124][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3236.403124][   T73] 
[ 3236.404849][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3236.404849][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3236.404849][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3236.404849][   T73]      ipv6_find_idev+0x102/0x170
[ 3236.404849][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3236.404849][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3236.404849][   T73]      netlink_rcv_skb+0x130/0x360
[ 3236.404849][   T73]      netlink_unicast+0x449/0x710
[ 3236.404849][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3236.404849][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3236.404849][   T73]      ___sys_sendmsg+0xee/0x170
[ 3236.404849][   T73]      __sys_sendmsg+0xcd/0x170
[ 3236.404849][   T73]      do_syscall_64+0xc6/0x1e0
[ 3236.404849][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3236.404849][   T73] 
[ 3246.655778][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3246.656279][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3246.656279][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3246.656279][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3246.656279][   T73]      fib6_nh_init+0xa22/0x1580
[ 3246.656279][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3246.656279][   T73]      ip6_route_add+0x1c/0x140
[ 3246.656279][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3246.656279][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3246.656279][   T73]      netlink_rcv_skb+0x130/0x360
[ 3246.656279][   T73]      netlink_unicast+0x449/0x710
[ 3246.656279][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3246.656279][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3246.656279][   T73]      ___sys_sendmsg+0xee/0x170
[ 3246.656279][   T73]      __sys_sendmsg+0xcd/0x170
[ 3246.656279][   T73]      do_syscall_64+0xc6/0x1e0
[ 3246.656279][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3246.656279][   T73] 
[ 3246.658189][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3246.658189][   T73]      dst_init+0x84/0x4a0
[ 3246.658189][   T73]      dst_alloc+0x97/0x150
[ 3246.658189][   T73]      ip6_dst_alloc+0x23/0x90
[ 3246.658189][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3246.658189][   T73]      ip6_pol_route+0x56f/0x840
[ 3246.658189][   T73]      fib6_rule_lookup+0x456/0x630
[ 3246.658189][   T73]      ip6_route_input+0x59c/0xa50
[ 3246.658189][   T73]      ipv6_rcv+0x397/0x810
[ 3246.658189][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3246.658189][   T73]      process_backlog+0x101/0x620
[ 3246.658189][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3246.658189][   T73]      net_rx_action+0x495/0xbe0
[ 3246.658189][   T73]      __do_softirq+0x1b5/0x7f6
[ 3246.658189][   T73] 
[ 3246.659845][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3246.659845][   T73]      netdev_get_by_index+0x5e/0x80
[ 3246.659845][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3246.659845][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3246.659845][   T73]      ip6_route_add+0x1c/0x140
[ 3246.659845][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3246.659845][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3246.659845][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3246.659845][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3246.659845][   T73]      netlink_rcv_skb+0x130/0x360
[ 3246.659845][   T73]      netlink_unicast+0x449/0x710
[ 3246.659845][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3246.659845][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3246.659845][   T73]      ___sys_sendmsg+0xee/0x170
[ 3246.659845][   T73]      __sys_sendmsg+0xcd/0x170
[ 3246.659845][   T73]      do_syscall_64+0xc6/0x1e0
[ 3246.659845][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3246.659845][   T73] 
[ 3246.661848][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3246.661848][   T73]      netdev_get_by_index+0x5e/0x80
[ 3246.661848][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3246.661848][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3246.661848][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3246.661848][   T73]      ipv6_add_addr+0x411/0x2000
[ 3246.661848][   T73]      inet6_addr_add+0x30e/0xa40
[ 3246.661848][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3246.661848][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3246.661848][   T73]      netlink_rcv_skb+0x130/0x360
[ 3246.661848][   T73]      netlink_unicast+0x449/0x710
[ 3246.661848][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3246.661848][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3246.661848][   T73]      ___sys_sendmsg+0xee/0x170
[ 3246.661848][   T73]      __sys_sendmsg+0xcd/0x170
[ 3246.661848][   T73]      do_syscall_64+0xc6/0x1e0
[ 3246.661848][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3246.661848][   T73] 
[ 3246.663870][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3246.663870][   T73]      netdev_get_by_index+0x5e/0x80
[ 3246.663870][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3246.663870][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3246.663870][   T73]      ip6_route_add+0x1c/0x140
[ 3246.663870][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3246.663870][   T73]      addrconf_add_dev+0xe2/0x170
[ 3246.663870][   T73]      inet6_addr_add+0x12f/0xa40
[ 3246.663870][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3246.663870][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3246.663870][   T73]      netlink_rcv_skb+0x130/0x360
[ 3246.663870][   T73]      netlink_unicast+0x449/0x710
[ 3246.663870][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3246.663870][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3246.663870][   T73]      ___sys_sendmsg+0xee/0x170
[ 3246.663870][   T73]      __sys_sendmsg+0xcd/0x170
[ 3246.663870][   T73]      do_syscall_64+0xc6/0x1e0
[ 3246.663870][   T73] 
[ 3246.665854][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3246.665854][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3246.665854][   T73]      ipv6_find_idev+0x102/0x170
[ 3246.665854][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3246.665854][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3246.665854][   T73]      netlink_rcv_skb+0x130/0x360
[ 3246.665854][   T73]      netlink_unicast+0x449/0x710
[ 3246.665854][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3246.665854][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3246.665854][   T73]      ___sys_sendmsg+0xee/0x170
[ 3246.665854][   T73]      __sys_sendmsg+0xcd/0x170
[ 3246.665854][   T73]      do_syscall_64+0xc6/0x1e0
[ 3246.665854][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3246.665854][   T73] 
[ 3246.667405][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3246.667405][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3246.667405][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3246.667405][   T73]      ipv6_find_idev+0x102/0x170
[ 3246.667405][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3246.667405][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3246.667405][   T73]      netlink_rcv_skb+0x130/0x360
[ 3246.667405][   T73]      netlink_unicast+0x449/0x710
[ 3246.667405][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3246.667405][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3246.667405][   T73]      ___sys_sendmsg+0xee/0x170
[ 3246.667405][   T73]      __sys_sendmsg+0xcd/0x170
[ 3246.667405][   T73]      do_syscall_64+0xc6/0x1e0
[ 3246.667405][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3246.667405][   T73] 
[ 3246.669106][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3246.669388][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3246.669388][   T73]      netdev_get_by_index+0x5e/0x80
[ 3246.669388][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3246.669388][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3246.669388][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3246.669388][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3246.669388][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3246.669388][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3246.669388][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3246.669388][   T73]      addrconf_dad_begin+0x310/0x670
[ 3246.669388][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3246.669388][   T73]      process_one_work+0x84d/0x18a0
[ 3246.669388][   T73]      worker_thread+0x587/0xd30
[ 3246.669388][   T73]      kthread+0x28a/0x350
[ 3246.669388][   T73]      ret_from_fork+0x31/0x70
[ 3246.669388][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3246.669388][   T73] 
[ 3246.671348][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3246.671348][   T73]      netdev_get_by_index+0x5e/0x80
[ 3246.671348][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3246.671348][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3246.671348][   T73]      ip6_route_add+0x1c/0x140
[ 3246.671348][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3246.671348][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3246.671348][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3246.671348][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3246.671348][   T73]      netlink_rcv_skb+0x130/0x360
[ 3246.671348][   T73]      netlink_unicast+0x449/0x710
[ 3246.671348][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3246.671348][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3246.671348][   T73]      ___sys_sendmsg+0xee/0x170
[ 3246.671348][   T73]      __sys_sendmsg+0xcd/0x170
[ 3246.671348][   T73]      do_syscall_64+0xc6/0x1e0
[ 3246.671348][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3246.671348][   T73] 
[ 3246.673354][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3246.673354][   T73]      netdev_get_by_index+0x5e/0x80
[ 3246.673354][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3246.673354][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3246.673354][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3246.673354][   T73]      ipv6_add_addr+0x411/0x2000
[ 3246.673354][   T73]      inet6_addr_add+0x30e/0xa40
[ 3246.673354][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3246.673354][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3246.673354][   T73]      netlink_rcv_skb+0x130/0x360
[ 3246.673354][   T73]      netlink_unicast+0x449/0x710
[ 3246.673354][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3246.673354][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3246.673354][   T73]      ___sys_sendmsg+0xee/0x170
[ 3246.673354][   T73]      __sys_sendmsg+0xcd/0x170
[ 3246.673354][   T73]      do_syscall_64+0xc6/0x1e0
[ 3246.673354][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3246.673354][   T73] 
[ 3246.675366][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3246.675366][   T73]      netdev_get_by_index+0x5e/0x80
[ 3246.675366][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3246.675366][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3246.675366][   T73]      ip6_route_add+0x1c/0x140
[ 3246.675366][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3246.675366][   T73]      addrconf_add_dev+0xe2/0x170
[ 3246.675366][   T73]      inet6_addr_add+0x12f/0xa40
[ 3246.675366][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3246.675366][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3246.675366][   T73]      netlink_rcv_skb+0x130/0x360
[ 3246.675366][   T73]      netlink_unicast+0x449/0x710
[ 3246.675366][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3246.675366][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3246.675366][   T73]      ___sys_sendmsg+0xee/0x170
[ 3246.675366][   T73]      __sys_sendmsg+0xcd/0x170
[ 3246.675366][   T73]      do_syscall_64+0xc6/0x1e0
[ 3246.675366][   T73] 
[ 3246.677357][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3246.677357][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3246.677357][   T73]      ipv6_find_idev+0x102/0x170
[ 3246.677357][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3246.677357][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3246.677357][   T73]      netlink_rcv_skb+0x130/0x360
[ 3246.677357][   T73]      netlink_unicast+0x449/0x710
[ 3246.677357][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3246.677357][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3246.677357][   T73]      ___sys_sendmsg+0xee/0x170
[ 3246.677357][   T73]      __sys_sendmsg+0xcd/0x170
[ 3246.677357][   T73]      do_syscall_64+0xc6/0x1e0
[ 3246.677357][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3246.677357][   T73] 
[ 3246.678902][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3246.678902][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3246.678902][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3246.678902][   T73]      ipv6_find_idev+0x102/0x170
[ 3246.678902][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3246.678902][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3246.678902][   T73]      netlink_rcv_skb+0x130/0x360
[ 3246.678902][   T73]      netlink_unicast+0x449/0x710
[ 3246.678902][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3246.678902][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3246.678902][   T73]      ___sys_sendmsg+0xee/0x170
[ 3246.678902][   T73]      __sys_sendmsg+0xcd/0x170
[ 3246.678902][   T73]      do_syscall_64+0xc6/0x1e0
[ 3246.678902][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3246.678902][   T73] 
[ 3246.680616][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3246.680896][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3246.680896][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3246.680896][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3246.680896][   T73]      fib6_nh_init+0xa22/0x1580
[ 3246.680896][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3246.680896][   T73]      ip6_route_add+0x1c/0x140
[ 3246.680896][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3246.680896][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3246.680896][   T73]      netlink_rcv_skb+0x130/0x360
[ 3246.680896][   T73]      netlink_unicast+0x449/0x710
[ 3246.680896][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3246.680896][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3246.680896][   T73]      ___sys_sendmsg+0xee/0x170
[ 3246.680896][   T73]      __sys_sendmsg+0xcd/0x170
[ 3246.680896][   T73]      do_syscall_64+0xc6/0x1e0
[ 3246.680896][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3246.680896][   T73] 
[ 3246.682965][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3246.682965][   T73]      dst_init+0x84/0x4a0
[ 3246.682965][   T73]      dst_alloc+0x97/0x150
[ 3246.682965][   T73]      ip6_dst_alloc+0x23/0x90
[ 3246.682965][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3246.682965][   T73]      ip6_pol_route+0x56f/0x840
[ 3246.682965][   T73]      fib6_rule_lookup+0x456/0x630
[ 3246.682965][   T73]      ip6_route_input+0x59c/0xa50
[ 3246.682965][   T73]      ipv6_rcv+0x397/0x810
[ 3246.682965][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3246.682965][   T73]      process_backlog+0x101/0x620
[ 3246.682965][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3246.682965][   T73]      net_rx_action+0x495/0xbe0
[ 3246.682965][   T73]      __do_softirq+0x1b5/0x7f6
[ 3246.682965][   T73] 
[ 3246.684861][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3246.684861][   T73]      netdev_get_by_index+0x5e/0x80
[ 3246.684861][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3246.684861][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3246.684861][   T73]      ip6_route_add+0x1c/0x140
[ 3246.684861][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3246.684861][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3246.684861][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3246.684861][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3246.684861][   T73]      netlink_rcv_skb+0x130/0x360
[ 3246.684861][   T73]      netlink_unicast+0x449/0x710
[ 3246.684861][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3246.684861][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3246.684861][   T73]      ___sys_sendmsg+0xee/0x170
[ 3246.684861][   T73]      __sys_sendmsg+0xcd/0x170
[ 3246.684861][   T73]      do_syscall_64+0xc6/0x1e0
[ 3246.684861][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3246.684861][   T73] 
[ 3246.687090][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3246.687090][   T73]      netdev_get_by_index+0x5e/0x80
[ 3246.687090][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3246.687090][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3246.687090][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3246.687090][   T73]      ipv6_add_addr+0x411/0x2000
[ 3246.687090][   T73]      inet6_addr_add+0x30e/0xa40
[ 3246.687090][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3246.687090][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3246.687090][   T73]      netlink_rcv_skb+0x130/0x360
[ 3246.687090][   T73]      netlink_unicast+0x449/0x710
[ 3246.687090][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3246.687090][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3246.687090][   T73]      ___sys_sendmsg+0xee/0x170
[ 3246.687090][   T73]      __sys_sendmsg+0xcd/0x170
[ 3246.687090][   T73]      do_syscall_64+0xc6/0x1e0
[ 3246.687090][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3246.687090][   T73] 
[ 3246.689889][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3246.689889][   T73]      netdev_get_by_index+0x5e/0x80
[ 3246.689889][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3246.689889][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3246.689889][   T73]      ip6_route_add+0x1c/0x140
[ 3246.689889][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3246.689889][   T73]      addrconf_add_dev+0xe2/0x170
[ 3246.689889][   T73]      inet6_addr_add+0x12f/0xa40
[ 3246.689889][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3246.689889][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3246.689889][   T73]      netlink_rcv_skb+0x130/0x360
[ 3246.689889][   T73]      netlink_unicast+0x449/0x710
[ 3246.689889][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3246.689889][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3246.689889][   T73]      ___sys_sendmsg+0xee/0x170
[ 3246.689889][   T73]      __sys_sendmsg+0xcd/0x170
[ 3246.689889][   T73]      do_syscall_64+0xc6/0x1e0
[ 3246.689889][   T73] 
[ 3246.692095][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3246.692095][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3246.692095][   T73]      ipv6_find_idev+0x102/0x170
[ 3246.692095][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3246.692095][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3246.692095][   T73]      netlink_rcv_skb+0x130/0x360
[ 3246.692095][   T73]      netlink_unicast+0x449/0x710
[ 3246.692095][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3246.692095][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3246.692095][   T73]      ___sys_sendmsg+0xee/0x170
[ 3246.692095][   T73]      __sys_sendmsg+0xcd/0x170
[ 3246.692095][   T73]      do_syscall_64+0xc6/0x1e0
[ 3246.692095][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3246.692095][   T73] 
[ 3246.693829][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3246.693829][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3246.693829][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3246.693829][   T73]      ipv6_find_idev+0x102/0x170
[ 3246.693829][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3246.693829][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3246.693829][   T73]      netlink_rcv_skb+0x130/0x360
[ 3246.693829][   T73]      netlink_unicast+0x449/0x710
[ 3246.693829][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3246.693829][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3246.693829][   T73]      ___sys_sendmsg+0xee/0x170
[ 3246.693829][   T73]      __sys_sendmsg+0xcd/0x170
[ 3246.693829][   T73]      do_syscall_64+0xc6/0x1e0
[ 3246.693829][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3246.693829][   T73] 
[ 3246.695783][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3246.696068][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3246.696068][   T73]      netdev_get_by_index+0x5e/0x80
[ 3246.696068][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3246.696068][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3246.696068][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3246.696068][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3246.696068][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3246.696068][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3246.696068][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3246.696068][   T73]      addrconf_dad_begin+0x310/0x670
[ 3246.696068][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3246.696068][   T73]      process_one_work+0x84d/0x18a0
[ 3246.696068][   T73]      worker_thread+0x587/0xd30
[ 3246.696068][   T73]      kthread+0x28a/0x350
[ 3246.696068][   T73]      ret_from_fork+0x31/0x70
[ 3246.696068][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3246.696068][   T73] 
[ 3246.698227][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3246.698227][   T73]      netdev_get_by_index+0x5e/0x80
[ 3246.698227][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3246.698227][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3246.698227][   T73]      ip6_route_add+0x1c/0x140
[ 3246.698227][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3246.698227][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3246.698227][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3246.698227][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3246.698227][   T73]      netlink_rcv_skb+0x130/0x360
[ 3246.698227][   T73]      netlink_unicast+0x449/0x710
[ 3246.698227][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3246.698227][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3246.698227][   T73]      ___sys_sendmsg+0xee/0x170
[ 3246.698227][   T73]      __sys_sendmsg+0xcd/0x170
[ 3246.698227][   T73]      do_syscall_64+0xc6/0x1e0
[ 3246.698227][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3246.698227][   T73] 
[ 3246.700500][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3246.700500][   T73]      netdev_get_by_index+0x5e/0x80
[ 3246.700500][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3246.700500][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3246.700500][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3246.700500][   T73]      ipv6_add_addr+0x411/0x2000
[ 3246.700500][   T73]      inet6_addr_add+0x30e/0xa40
[ 3246.700500][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3246.700500][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3246.700500][   T73]      netlink_rcv_skb+0x130/0x360
[ 3246.700500][   T73]      netlink_unicast+0x449/0x710
[ 3246.700500][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3246.700500][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3246.700500][   T73]      ___sys_sendmsg+0xee/0x170
[ 3246.700500][   T73]      __sys_sendmsg+0xcd/0x170
[ 3246.700500][   T73]      do_syscall_64+0xc6/0x1e0
[ 3246.700500][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3246.700500][   T73] 
[ 3246.702677][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3246.702677][   T73]      netdev_get_by_index+0x5e/0x80
[ 3246.702677][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3246.702677][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3246.702677][   T73]      ip6_route_add+0x1c/0x140
[ 3246.702677][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3246.702677][   T73]      addrconf_add_dev+0xe2/0x170
[ 3246.702677][   T73]      inet6_addr_add+0x12f/0xa40
[ 3246.702677][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3246.702677][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3246.702677][   T73]      netlink_rcv_skb+0x130/0x360
[ 3246.702677][   T73]      netlink_unicast+0x449/0x710
[ 3246.702677][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3246.702677][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3246.702677][   T73]      ___sys_sendmsg+0xee/0x170
[ 3246.702677][   T73]      __sys_sendmsg+0xcd/0x170
[ 3246.702677][   T73]      do_syscall_64+0xc6/0x1e0
[ 3246.702677][   T73] 
[ 3246.704942][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3246.704942][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3246.704942][   T73]      ipv6_find_idev+0x102/0x170
[ 3246.704942][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3246.704942][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3246.704942][   T73]      netlink_rcv_skb+0x130/0x360
[ 3246.704942][   T73]      netlink_unicast+0x449/0x710
[ 3246.704942][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3246.704942][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3246.704942][   T73]      ___sys_sendmsg+0xee/0x170
[ 3246.704942][   T73]      __sys_sendmsg+0xcd/0x170
[ 3246.704942][   T73]      do_syscall_64+0xc6/0x1e0
[ 3246.704942][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3246.704942][   T73] 
[ 3246.706679][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3246.706679][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3246.706679][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3246.706679][   T73]      ipv6_find_idev+0x102/0x170
[ 3246.706679][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3246.706679][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3246.706679][   T73]      netlink_rcv_skb+0x130/0x360
[ 3246.706679][   T73]      netlink_unicast+0x449/0x710
[ 3246.706679][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3246.706679][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3246.706679][   T73]      ___sys_sendmsg+0xee/0x170
[ 3246.706679][   T73]      __sys_sendmsg+0xcd/0x170
[ 3246.706679][   T73]      do_syscall_64+0xc6/0x1e0
[ 3246.706679][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3246.706679][   T73] 
[ 3256.951806][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3256.952268][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3256.952268][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3256.952268][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3256.952268][   T73]      fib6_nh_init+0xa22/0x1580
[ 3256.952268][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3256.952268][   T73]      ip6_route_add+0x1c/0x140
[ 3256.952268][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3256.952268][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3256.952268][   T73]      netlink_rcv_skb+0x130/0x360
[ 3256.952268][   T73]      netlink_unicast+0x449/0x710
[ 3256.952268][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3256.952268][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3256.952268][   T73]      ___sys_sendmsg+0xee/0x170
[ 3256.952268][   T73]      __sys_sendmsg+0xcd/0x170
[ 3256.952268][   T73]      do_syscall_64+0xc6/0x1e0
[ 3256.952268][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3256.952268][   T73] 
[ 3256.954308][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3256.954308][   T73]      dst_init+0x84/0x4a0
[ 3256.954308][   T73]      dst_alloc+0x97/0x150
[ 3256.954308][   T73]      ip6_dst_alloc+0x23/0x90
[ 3256.954308][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3256.954308][   T73]      ip6_pol_route+0x56f/0x840
[ 3256.954308][   T73]      fib6_rule_lookup+0x456/0x630
[ 3256.954308][   T73]      ip6_route_input+0x59c/0xa50
[ 3256.954308][   T73]      ipv6_rcv+0x397/0x810
[ 3256.954308][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3256.954308][   T73]      process_backlog+0x101/0x620
[ 3256.954308][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3256.954308][   T73]      net_rx_action+0x495/0xbe0
[ 3256.954308][   T73]      __do_softirq+0x1b5/0x7f6
[ 3256.954308][   T73] 
[ 3256.956081][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3256.956081][   T73]      netdev_get_by_index+0x5e/0x80
[ 3256.956081][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3256.956081][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3256.956081][   T73]      ip6_route_add+0x1c/0x140
[ 3256.956081][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3256.956081][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3256.956081][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3256.956081][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3256.956081][   T73]      netlink_rcv_skb+0x130/0x360
[ 3256.956081][   T73]      netlink_unicast+0x449/0x710
[ 3256.956081][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3256.956081][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3256.956081][   T73]      ___sys_sendmsg+0xee/0x170
[ 3256.956081][   T73]      __sys_sendmsg+0xcd/0x170
[ 3256.956081][   T73]      do_syscall_64+0xc6/0x1e0
[ 3256.956081][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3256.956081][   T73] 
[ 3256.958267][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3256.958267][   T73]      netdev_get_by_index+0x5e/0x80
[ 3256.958267][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3256.958267][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3256.958267][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3256.958267][   T73]      ipv6_add_addr+0x411/0x2000
[ 3256.958267][   T73]      inet6_addr_add+0x30e/0xa40
[ 3256.958267][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3256.958267][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3256.958267][   T73]      netlink_rcv_skb+0x130/0x360
[ 3256.958267][   T73]      netlink_unicast+0x449/0x710
[ 3256.958267][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3256.958267][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3256.958267][   T73]      ___sys_sendmsg+0xee/0x170
[ 3256.958267][   T73]      __sys_sendmsg+0xcd/0x170
[ 3256.958267][   T73]      do_syscall_64+0xc6/0x1e0
[ 3256.958267][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3256.958267][   T73] 
[ 3256.960447][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3256.960447][   T73]      netdev_get_by_index+0x5e/0x80
[ 3256.960447][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3256.960447][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3256.960447][   T73]      ip6_route_add+0x1c/0x140
[ 3256.960447][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3256.960447][   T73]      addrconf_add_dev+0xe2/0x170
[ 3256.960447][   T73]      inet6_addr_add+0x12f/0xa40
[ 3256.960447][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3256.960447][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3256.960447][   T73]      netlink_rcv_skb+0x130/0x360
[ 3256.960447][   T73]      netlink_unicast+0x449/0x710
[ 3256.960447][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3256.960447][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3256.960447][   T73]      ___sys_sendmsg+0xee/0x170
[ 3256.960447][   T73]      __sys_sendmsg+0xcd/0x170
[ 3256.960447][   T73]      do_syscall_64+0xc6/0x1e0
[ 3256.960447][   T73] 
[ 3256.962520][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3256.962520][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3256.962520][   T73]      ipv6_find_idev+0x102/0x170
[ 3256.962520][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3256.962520][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3256.962520][   T73]      netlink_rcv_skb+0x130/0x360
[ 3256.962520][   T73]      netlink_unicast+0x449/0x710
[ 3256.962520][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3256.962520][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3256.962520][   T73]      ___sys_sendmsg+0xee/0x170
[ 3256.962520][   T73]      __sys_sendmsg+0xcd/0x170
[ 3256.962520][   T73]      do_syscall_64+0xc6/0x1e0
[ 3256.962520][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3256.962520][   T73] 
[ 3256.964053][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3256.964053][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3256.964053][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3256.964053][   T73]      ipv6_find_idev+0x102/0x170
[ 3256.964053][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3256.964053][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3256.964053][   T73]      netlink_rcv_skb+0x130/0x360
[ 3256.964053][   T73]      netlink_unicast+0x449/0x710
[ 3256.964053][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3256.964053][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3256.964053][   T73]      ___sys_sendmsg+0xee/0x170
[ 3256.964053][   T73]      __sys_sendmsg+0xcd/0x170
[ 3256.964053][   T73]      do_syscall_64+0xc6/0x1e0
[ 3256.964053][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3256.964053][   T73] 
[ 3256.965740][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3256.966016][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3256.966016][   T73]      netdev_get_by_index+0x5e/0x80
[ 3256.966016][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3256.966016][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3256.966016][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3256.966016][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3256.966016][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3256.966016][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3256.966016][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3256.966016][   T73]      addrconf_dad_begin+0x310/0x670
[ 3256.966016][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3256.966016][   T73]      process_one_work+0x84d/0x18a0
[ 3256.966016][   T73]      worker_thread+0x587/0xd30
[ 3256.966016][   T73]      kthread+0x28a/0x350
[ 3256.966016][   T73]      ret_from_fork+0x31/0x70
[ 3256.966016][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3256.966016][   T73] 
[ 3256.967921][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3256.967921][   T73]      netdev_get_by_index+0x5e/0x80
[ 3256.967921][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3256.967921][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3256.967921][   T73]      ip6_route_add+0x1c/0x140
[ 3256.967921][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3256.967921][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3256.967921][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3256.967921][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3256.967921][   T73]      netlink_rcv_skb+0x130/0x360
[ 3256.967921][   T73]      netlink_unicast+0x449/0x710
[ 3256.967921][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3256.967921][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3256.967921][   T73]      ___sys_sendmsg+0xee/0x170
[ 3256.967921][   T73]      __sys_sendmsg+0xcd/0x170
[ 3256.967921][   T73]      do_syscall_64+0xc6/0x1e0
[ 3256.967921][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3256.967921][   T73] 
[ 3256.969976][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3256.969976][   T73]      netdev_get_by_index+0x5e/0x80
[ 3256.969976][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3256.969976][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3256.969976][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3256.969976][   T73]      ipv6_add_addr+0x411/0x2000
[ 3256.969976][   T73]      inet6_addr_add+0x30e/0xa40
[ 3256.969976][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3256.969976][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3256.969976][   T73]      netlink_rcv_skb+0x130/0x360
[ 3256.969976][   T73]      netlink_unicast+0x449/0x710
[ 3256.969976][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3256.969976][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3256.969976][   T73]      ___sys_sendmsg+0xee/0x170
[ 3256.969976][   T73]      __sys_sendmsg+0xcd/0x170
[ 3256.969976][   T73]      do_syscall_64+0xc6/0x1e0
[ 3256.969976][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3256.969976][   T73] 
[ 3256.971960][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3256.971960][   T73]      netdev_get_by_index+0x5e/0x80
[ 3256.971960][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3256.971960][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3256.971960][   T73]      ip6_route_add+0x1c/0x140
[ 3256.971960][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3256.971960][   T73]      addrconf_add_dev+0xe2/0x170
[ 3256.971960][   T73]      inet6_addr_add+0x12f/0xa40
[ 3256.971960][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3256.971960][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3256.971960][   T73]      netlink_rcv_skb+0x130/0x360
[ 3256.971960][   T73]      netlink_unicast+0x449/0x710
[ 3256.971960][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3256.971960][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3256.971960][   T73]      ___sys_sendmsg+0xee/0x170
[ 3256.971960][   T73]      __sys_sendmsg+0xcd/0x170
[ 3256.971960][   T73]      do_syscall_64+0xc6/0x1e0
[ 3256.971960][   T73] 
[ 3256.973960][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3256.973960][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3256.973960][   T73]      ipv6_find_idev+0x102/0x170
[ 3256.973960][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3256.973960][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3256.973960][   T73]      netlink_rcv_skb+0x130/0x360
[ 3256.973960][   T73]      netlink_unicast+0x449/0x710
[ 3256.973960][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3256.973960][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3256.973960][   T73]      ___sys_sendmsg+0xee/0x170
[ 3256.973960][   T73]      __sys_sendmsg+0xcd/0x170
[ 3256.973960][   T73]      do_syscall_64+0xc6/0x1e0
[ 3256.973960][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3256.973960][   T73] 
[ 3256.975491][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3256.975491][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3256.975491][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3256.975491][   T73]      ipv6_find_idev+0x102/0x170
[ 3256.975491][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3256.975491][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3256.975491][   T73]      netlink_rcv_skb+0x130/0x360
[ 3256.975491][   T73]      netlink_unicast+0x449/0x710
[ 3256.975491][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3256.975491][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3256.975491][   T73]      ___sys_sendmsg+0xee/0x170
[ 3256.975491][   T73]      __sys_sendmsg+0xcd/0x170
[ 3256.975491][   T73]      do_syscall_64+0xc6/0x1e0
[ 3256.975491][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3256.975491][   T73] 
[ 3256.977171][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3256.977456][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3256.977456][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3256.977456][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3256.977456][   T73]      fib6_nh_init+0xa22/0x1580
[ 3256.977456][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3256.977456][   T73]      ip6_route_add+0x1c/0x140
[ 3256.977456][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3256.977456][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3256.977456][   T73]      netlink_rcv_skb+0x130/0x360
[ 3256.977456][   T73]      netlink_unicast+0x449/0x710
[ 3256.977456][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3256.977456][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3256.977456][   T73]      ___sys_sendmsg+0xee/0x170
[ 3256.977456][   T73]      __sys_sendmsg+0xcd/0x170
[ 3256.977456][   T73]      do_syscall_64+0xc6/0x1e0
[ 3256.977456][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3256.977456][   T73] 
[ 3256.979651][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3256.979651][   T73]      dst_init+0x84/0x4a0
[ 3256.979651][   T73]      dst_alloc+0x97/0x150
[ 3256.979651][   T73]      ip6_dst_alloc+0x23/0x90
[ 3256.979651][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3256.979651][   T73]      ip6_pol_route+0x56f/0x840
[ 3256.979651][   T73]      fib6_rule_lookup+0x456/0x630
[ 3256.979651][   T73]      ip6_route_input+0x59c/0xa50
[ 3256.979651][   T73]      ipv6_rcv+0x397/0x810
[ 3256.979651][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3256.979651][   T73]      process_backlog+0x101/0x620
[ 3256.979651][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3256.979651][   T73]      net_rx_action+0x495/0xbe0
[ 3256.979651][   T73]      __do_softirq+0x1b5/0x7f6
[ 3256.979651][   T73] 
[ 3256.981526][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3256.981526][   T73]      netdev_get_by_index+0x5e/0x80
[ 3256.981526][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3256.981526][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3256.981526][   T73]      ip6_route_add+0x1c/0x140
[ 3256.981526][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3256.981526][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3256.981526][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3256.981526][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3256.981526][   T73]      netlink_rcv_skb+0x130/0x360
[ 3256.981526][   T73]      netlink_unicast+0x449/0x710
[ 3256.981526][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3256.981526][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3256.981526][   T73]      ___sys_sendmsg+0xee/0x170
[ 3256.981526][   T73]      __sys_sendmsg+0xcd/0x170
[ 3256.981526][   T73]      do_syscall_64+0xc6/0x1e0
[ 3256.981526][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3256.981526][   T73] 
[ 3256.983753][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3256.983753][   T73]      netdev_get_by_index+0x5e/0x80
[ 3256.983753][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3256.983753][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3256.983753][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3256.983753][   T73]      ipv6_add_addr+0x411/0x2000
[ 3256.983753][   T73]      inet6_addr_add+0x30e/0xa40
[ 3256.983753][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3256.983753][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3256.983753][   T73]      netlink_rcv_skb+0x130/0x360
[ 3256.983753][   T73]      netlink_unicast+0x449/0x710
[ 3256.983753][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3256.983753][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3256.983753][   T73]      ___sys_sendmsg+0xee/0x170
[ 3256.983753][   T73]      __sys_sendmsg+0xcd/0x170
[ 3256.983753][   T73]      do_syscall_64+0xc6/0x1e0
[ 3256.983753][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3256.983753][   T73] 
[ 3256.985930][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3256.985930][   T73]      netdev_get_by_index+0x5e/0x80
[ 3256.985930][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3256.985930][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3256.985930][   T73]      ip6_route_add+0x1c/0x140
[ 3256.985930][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3256.985930][   T73]      addrconf_add_dev+0xe2/0x170
[ 3256.985930][   T73]      inet6_addr_add+0x12f/0xa40
[ 3256.985930][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3256.985930][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3256.985930][   T73]      netlink_rcv_skb+0x130/0x360
[ 3256.985930][   T73]      netlink_unicast+0x449/0x710
[ 3256.985930][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3256.985930][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3256.985930][   T73]      ___sys_sendmsg+0xee/0x170
[ 3256.985930][   T73]      __sys_sendmsg+0xcd/0x170
[ 3256.985930][   T73]      do_syscall_64+0xc6/0x1e0
[ 3256.985930][   T73] 
[ 3256.988102][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3256.988102][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3256.988102][   T73]      ipv6_find_idev+0x102/0x170
[ 3256.988102][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3256.988102][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3256.988102][   T73]      netlink_rcv_skb+0x130/0x360
[ 3256.988102][   T73]      netlink_unicast+0x449/0x710
[ 3256.988102][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3256.988102][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3256.988102][   T73]      ___sys_sendmsg+0xee/0x170
[ 3256.988102][   T73]      __sys_sendmsg+0xcd/0x170
[ 3256.988102][   T73]      do_syscall_64+0xc6/0x1e0
[ 3256.988102][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3256.988102][   T73] 
[ 3256.989903][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3256.989903][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3256.989903][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3256.989903][   T73]      ipv6_find_idev+0x102/0x170
[ 3256.989903][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3256.989903][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3256.989903][   T73]      netlink_rcv_skb+0x130/0x360
[ 3256.989903][   T73]      netlink_unicast+0x449/0x710
[ 3256.989903][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3256.989903][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3256.989903][   T73]      ___sys_sendmsg+0xee/0x170
[ 3256.989903][   T73]      __sys_sendmsg+0xcd/0x170
[ 3256.989903][   T73]      do_syscall_64+0xc6/0x1e0
[ 3256.989903][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3256.989903][   T73] 
[ 3256.991783][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3256.992120][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3256.992120][   T73]      netdev_get_by_index+0x5e/0x80
[ 3256.992120][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3256.992120][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3256.992120][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3256.992120][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3256.992120][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3256.992120][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3256.992120][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3256.992120][   T73]      addrconf_dad_begin+0x310/0x670
[ 3256.992120][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3256.992120][   T73]      process_one_work+0x84d/0x18a0
[ 3256.992120][   T73]      worker_thread+0x587/0xd30
[ 3256.992120][   T73]      kthread+0x28a/0x350
[ 3256.992120][   T73]      ret_from_fork+0x31/0x70
[ 3256.992120][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3256.992120][   T73] 
[ 3256.994170][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3256.994170][   T73]      netdev_get_by_index+0x5e/0x80
[ 3256.994170][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3256.994170][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3256.994170][   T73]      ip6_route_add+0x1c/0x140
[ 3256.994170][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3256.994170][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3256.994170][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3256.994170][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3256.994170][   T73]      netlink_rcv_skb+0x130/0x360
[ 3256.994170][   T73]      netlink_unicast+0x449/0x710
[ 3256.994170][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3256.994170][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3256.994170][   T73]      ___sys_sendmsg+0xee/0x170
[ 3256.994170][   T73]      __sys_sendmsg+0xcd/0x170
[ 3256.994170][   T73]      do_syscall_64+0xc6/0x1e0
[ 3256.994170][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3256.994170][   T73] 
[ 3256.996408][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3256.996408][   T73]      netdev_get_by_index+0x5e/0x80
[ 3256.996408][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3256.996408][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3256.996408][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3256.996408][   T73]      ipv6_add_addr+0x411/0x2000
[ 3256.996408][   T73]      inet6_addr_add+0x30e/0xa40
[ 3256.996408][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3256.996408][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3256.996408][   T73]      netlink_rcv_skb+0x130/0x360
[ 3256.996408][   T73]      netlink_unicast+0x449/0x710
[ 3256.996408][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3256.996408][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3256.996408][   T73]      ___sys_sendmsg+0xee/0x170
[ 3256.996408][   T73]      __sys_sendmsg+0xcd/0x170
[ 3256.996408][   T73]      do_syscall_64+0xc6/0x1e0
[ 3256.996408][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3256.996408][   T73] 
[ 3256.998674][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3256.998674][   T73]      netdev_get_by_index+0x5e/0x80
[ 3256.998674][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3256.998674][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3256.998674][   T73]      ip6_route_add+0x1c/0x140
[ 3256.998674][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3256.998674][   T73]      addrconf_add_dev+0xe2/0x170
[ 3256.998674][   T73]      inet6_addr_add+0x12f/0xa40
[ 3256.998674][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3256.998674][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3256.998674][   T73]      netlink_rcv_skb+0x130/0x360
[ 3256.998674][   T73]      netlink_unicast+0x449/0x710
[ 3256.998674][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3256.998674][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3256.998674][   T73]      ___sys_sendmsg+0xee/0x170
[ 3256.998674][   T73]      __sys_sendmsg+0xcd/0x170
[ 3256.998674][   T73]      do_syscall_64+0xc6/0x1e0
[ 3256.998674][   T73] 
[ 3257.000947][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3257.000947][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3257.000947][   T73]      ipv6_find_idev+0x102/0x170
[ 3257.000947][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3257.000947][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3257.000947][   T73]      netlink_rcv_skb+0x130/0x360
[ 3257.000947][   T73]      netlink_unicast+0x449/0x710
[ 3257.000947][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3257.000947][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3257.000947][   T73]      ___sys_sendmsg+0xee/0x170
[ 3257.000947][   T73]      __sys_sendmsg+0xcd/0x170
[ 3257.000947][   T73]      do_syscall_64+0xc6/0x1e0
[ 3257.000947][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3257.000947][   T73] 
[ 3257.002657][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3257.002657][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3257.002657][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3257.002657][   T73]      ipv6_find_idev+0x102/0x170
[ 3257.002657][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3257.002657][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3257.002657][   T73]      netlink_rcv_skb+0x130/0x360
[ 3257.002657][   T73]      netlink_unicast+0x449/0x710
[ 3257.002657][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3257.002657][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3257.002657][   T73]      ___sys_sendmsg+0xee/0x170
[ 3257.002657][   T73]      __sys_sendmsg+0xcd/0x170
[ 3257.002657][   T73]      do_syscall_64+0xc6/0x1e0
[ 3257.002657][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3257.002657][   T73] 
[ 3267.247699][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3267.248157][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3267.248157][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3267.248157][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3267.248157][   T73]      fib6_nh_init+0xa22/0x1580
[ 3267.248157][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3267.248157][   T73]      ip6_route_add+0x1c/0x140
[ 3267.248157][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3267.248157][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3267.248157][   T73]      netlink_rcv_skb+0x130/0x360
[ 3267.248157][   T73]      netlink_unicast+0x449/0x710
[ 3267.248157][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3267.248157][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3267.248157][   T73]      ___sys_sendmsg+0xee/0x170
[ 3267.248157][   T73]      __sys_sendmsg+0xcd/0x170
[ 3267.248157][   T73]      do_syscall_64+0xc6/0x1e0
[ 3267.248157][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3267.248157][   T73] 
[ 3267.250228][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3267.250228][   T73]      dst_init+0x84/0x4a0
[ 3267.250228][   T73]      dst_alloc+0x97/0x150
[ 3267.250228][   T73]      ip6_dst_alloc+0x23/0x90
[ 3267.250228][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3267.250228][   T73]      ip6_pol_route+0x56f/0x840
[ 3267.250228][   T73]      fib6_rule_lookup+0x456/0x630
[ 3267.250228][   T73]      ip6_route_input+0x59c/0xa50
[ 3267.250228][   T73]      ipv6_rcv+0x397/0x810
[ 3267.250228][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3267.250228][   T73]      process_backlog+0x101/0x620
[ 3267.250228][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3267.250228][   T73]      net_rx_action+0x495/0xbe0
[ 3267.250228][   T73]      __do_softirq+0x1b5/0x7f6
[ 3267.250228][   T73] 
[ 3267.251883][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3267.251883][   T73]      netdev_get_by_index+0x5e/0x80
[ 3267.251883][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3267.251883][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3267.251883][   T73]      ip6_route_add+0x1c/0x140
[ 3267.251883][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3267.251883][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3267.251883][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3267.251883][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3267.251883][   T73]      netlink_rcv_skb+0x130/0x360
[ 3267.251883][   T73]      netlink_unicast+0x449/0x710
[ 3267.251883][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3267.251883][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3267.251883][   T73]      ___sys_sendmsg+0xee/0x170
[ 3267.251883][   T73]      __sys_sendmsg+0xcd/0x170
[ 3267.251883][   T73]      do_syscall_64+0xc6/0x1e0
[ 3267.251883][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3267.251883][   T73] 
[ 3267.253912][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3267.253912][   T73]      netdev_get_by_index+0x5e/0x80
[ 3267.253912][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3267.253912][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3267.253912][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3267.253912][   T73]      ipv6_add_addr+0x411/0x2000
[ 3267.253912][   T73]      inet6_addr_add+0x30e/0xa40
[ 3267.253912][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3267.253912][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3267.253912][   T73]      netlink_rcv_skb+0x130/0x360
[ 3267.253912][   T73]      netlink_unicast+0x449/0x710
[ 3267.253912][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3267.253912][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3267.253912][   T73]      ___sys_sendmsg+0xee/0x170
[ 3267.253912][   T73]      __sys_sendmsg+0xcd/0x170
[ 3267.253912][   T73]      do_syscall_64+0xc6/0x1e0
[ 3267.253912][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3267.253912][   T73] 
[ 3267.255935][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3267.255935][   T73]      netdev_get_by_index+0x5e/0x80
[ 3267.255935][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3267.255935][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3267.255935][   T73]      ip6_route_add+0x1c/0x140
[ 3267.255935][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3267.255935][   T73]      addrconf_add_dev+0xe2/0x170
[ 3267.255935][   T73]      inet6_addr_add+0x12f/0xa40
[ 3267.255935][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3267.255935][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3267.255935][   T73]      netlink_rcv_skb+0x130/0x360
[ 3267.255935][   T73]      netlink_unicast+0x449/0x710
[ 3267.255935][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3267.255935][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3267.255935][   T73]      ___sys_sendmsg+0xee/0x170
[ 3267.255935][   T73]      __sys_sendmsg+0xcd/0x170
[ 3267.255935][   T73]      do_syscall_64+0xc6/0x1e0
[ 3267.255935][   T73] 
[ 3267.257913][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3267.257913][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3267.257913][   T73]      ipv6_find_idev+0x102/0x170
[ 3267.257913][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3267.257913][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3267.257913][   T73]      netlink_rcv_skb+0x130/0x360
[ 3267.257913][   T73]      netlink_unicast+0x449/0x710
[ 3267.257913][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3267.257913][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3267.257913][   T73]      ___sys_sendmsg+0xee/0x170
[ 3267.257913][   T73]      __sys_sendmsg+0xcd/0x170
[ 3267.257913][   T73]      do_syscall_64+0xc6/0x1e0
[ 3267.257913][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3267.257913][   T73] 
[ 3267.259473][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3267.259473][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3267.259473][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3267.259473][   T73]      ipv6_find_idev+0x102/0x170
[ 3267.259473][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3267.259473][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3267.259473][   T73]      netlink_rcv_skb+0x130/0x360
[ 3267.259473][   T73]      netlink_unicast+0x449/0x710
[ 3267.259473][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3267.259473][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3267.259473][   T73]      ___sys_sendmsg+0xee/0x170
[ 3267.259473][   T73]      __sys_sendmsg+0xcd/0x170
[ 3267.259473][   T73]      do_syscall_64+0xc6/0x1e0
[ 3267.259473][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3267.259473][   T73] 
[ 3267.261177][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3267.261464][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3267.261464][   T73]      netdev_get_by_index+0x5e/0x80
[ 3267.261464][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3267.261464][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3267.261464][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3267.261464][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3267.261464][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3267.261464][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3267.261464][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3267.261464][   T73]      addrconf_dad_begin+0x310/0x670
[ 3267.261464][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3267.261464][   T73]      process_one_work+0x84d/0x18a0
[ 3267.261464][   T73]      worker_thread+0x587/0xd30
[ 3267.261464][   T73]      kthread+0x28a/0x350
[ 3267.261464][   T73]      ret_from_fork+0x31/0x70
[ 3267.261464][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3267.261464][   T73] 
[ 3267.263380][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3267.263380][   T73]      netdev_get_by_index+0x5e/0x80
[ 3267.263380][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3267.263380][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3267.263380][   T73]      ip6_route_add+0x1c/0x140
[ 3267.263380][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3267.263380][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3267.263380][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3267.263380][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3267.263380][   T73]      netlink_rcv_skb+0x130/0x360
[ 3267.263380][   T73]      netlink_unicast+0x449/0x710
[ 3267.263380][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3267.263380][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3267.263380][   T73]      ___sys_sendmsg+0xee/0x170
[ 3267.263380][   T73]      __sys_sendmsg+0xcd/0x170
[ 3267.263380][   T73]      do_syscall_64+0xc6/0x1e0
[ 3267.263380][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3267.263380][   T73] 
[ 3267.265376][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3267.265376][   T73]      netdev_get_by_index+0x5e/0x80
[ 3267.265376][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3267.265376][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3267.265376][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3267.265376][   T73]      ipv6_add_addr+0x411/0x2000
[ 3267.265376][   T73]      inet6_addr_add+0x30e/0xa40
[ 3267.265376][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3267.265376][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3267.265376][   T73]      netlink_rcv_skb+0x130/0x360
[ 3267.265376][   T73]      netlink_unicast+0x449/0x710
[ 3267.265376][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3267.265376][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3267.265376][   T73]      ___sys_sendmsg+0xee/0x170
[ 3267.265376][   T73]      __sys_sendmsg+0xcd/0x170
[ 3267.265376][   T73]      do_syscall_64+0xc6/0x1e0
[ 3267.265376][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3267.265376][   T73] 
[ 3267.267367][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3267.267367][   T73]      netdev_get_by_index+0x5e/0x80
[ 3267.267367][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3267.267367][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3267.267367][   T73]      ip6_route_add+0x1c/0x140
[ 3267.267367][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3267.267367][   T73]      addrconf_add_dev+0xe2/0x170
[ 3267.267367][   T73]      inet6_addr_add+0x12f/0xa40
[ 3267.267367][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3267.267367][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3267.267367][   T73]      netlink_rcv_skb+0x130/0x360
[ 3267.267367][   T73]      netlink_unicast+0x449/0x710
[ 3267.267367][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3267.267367][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3267.267367][   T73]      ___sys_sendmsg+0xee/0x170
[ 3267.267367][   T73]      __sys_sendmsg+0xcd/0x170
[ 3267.267367][   T73]      do_syscall_64+0xc6/0x1e0
[ 3267.267367][   T73] 
[ 3267.269335][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3267.269335][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3267.269335][   T73]      ipv6_find_idev+0x102/0x170
[ 3267.269335][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3267.269335][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3267.269335][   T73]      netlink_rcv_skb+0x130/0x360
[ 3267.269335][   T73]      netlink_unicast+0x449/0x710
[ 3267.269335][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3267.269335][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3267.269335][   T73]      ___sys_sendmsg+0xee/0x170
[ 3267.269335][   T73]      __sys_sendmsg+0xcd/0x170
[ 3267.269335][   T73]      do_syscall_64+0xc6/0x1e0
[ 3267.269335][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3267.269335][   T73] 
[ 3267.270878][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3267.270878][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3267.270878][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3267.270878][   T73]      ipv6_find_idev+0x102/0x170
[ 3267.270878][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3267.270878][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3267.270878][   T73]      netlink_rcv_skb+0x130/0x360
[ 3267.270878][   T73]      netlink_unicast+0x449/0x710
[ 3267.270878][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3267.270878][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3267.270878][   T73]      ___sys_sendmsg+0xee/0x170
[ 3267.270878][   T73]      __sys_sendmsg+0xcd/0x170
[ 3267.270878][   T73]      do_syscall_64+0xc6/0x1e0
[ 3267.270878][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3267.270878][   T73] 
[ 3267.272558][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3267.272850][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3267.272850][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3267.272850][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3267.272850][   T73]      fib6_nh_init+0xa22/0x1580
[ 3267.272850][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3267.272850][   T73]      ip6_route_add+0x1c/0x140
[ 3267.272850][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3267.272850][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3267.272850][   T73]      netlink_rcv_skb+0x130/0x360
[ 3267.272850][   T73]      netlink_unicast+0x449/0x710
[ 3267.272850][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3267.272850][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3267.272850][   T73]      ___sys_sendmsg+0xee/0x170
[ 3267.272850][   T73]      __sys_sendmsg+0xcd/0x170
[ 3267.272850][   T73]      do_syscall_64+0xc6/0x1e0
[ 3267.272850][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3267.272850][   T73] 
[ 3267.274926][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3267.274926][   T73]      dst_init+0x84/0x4a0
[ 3267.274926][   T73]      dst_alloc+0x97/0x150
[ 3267.274926][   T73]      ip6_dst_alloc+0x23/0x90
[ 3267.274926][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3267.274926][   T73]      ip6_pol_route+0x56f/0x840
[ 3267.274926][   T73]      fib6_rule_lookup+0x456/0x630
[ 3267.274926][   T73]      ip6_route_input+0x59c/0xa50
[ 3267.274926][   T73]      ipv6_rcv+0x397/0x810
[ 3267.274926][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3267.274926][   T73]      process_backlog+0x101/0x620
[ 3267.274926][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3267.274926][   T73]      net_rx_action+0x495/0xbe0
[ 3267.274926][   T73]      __do_softirq+0x1b5/0x7f6
[ 3267.274926][   T73] 
[ 3267.276738][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3267.276738][   T73]      netdev_get_by_index+0x5e/0x80
[ 3267.276738][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3267.276738][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3267.276738][   T73]      ip6_route_add+0x1c/0x140
[ 3267.276738][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3267.276738][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3267.276738][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3267.276738][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3267.276738][   T73]      netlink_rcv_skb+0x130/0x360
[ 3267.276738][   T73]      netlink_unicast+0x449/0x710
[ 3267.276738][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3267.276738][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3267.276738][   T73]      ___sys_sendmsg+0xee/0x170
[ 3267.276738][   T73]      __sys_sendmsg+0xcd/0x170
[ 3267.276738][   T73]      do_syscall_64+0xc6/0x1e0
[ 3267.276738][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3267.276738][   T73] 
[ 3267.278992][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3267.278992][   T73]      netdev_get_by_index+0x5e/0x80
[ 3267.278992][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3267.278992][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3267.278992][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3267.278992][   T73]      ipv6_add_addr+0x411/0x2000
[ 3267.278992][   T73]      inet6_addr_add+0x30e/0xa40
[ 3267.278992][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3267.278992][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3267.278992][   T73]      netlink_rcv_skb+0x130/0x360
[ 3267.278992][   T73]      netlink_unicast+0x449/0x710
[ 3267.278992][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3267.278992][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3267.278992][   T73]      ___sys_sendmsg+0xee/0x170
[ 3267.278992][   T73]      __sys_sendmsg+0xcd/0x170
[ 3267.278992][   T73]      do_syscall_64+0xc6/0x1e0
[ 3267.278992][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3267.278992][   T73] 
[ 3267.281224][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3267.281224][   T73]      netdev_get_by_index+0x5e/0x80
[ 3267.281224][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3267.281224][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3267.281224][   T73]      ip6_route_add+0x1c/0x140
[ 3267.281224][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3267.281224][   T73]      addrconf_add_dev+0xe2/0x170
[ 3267.281224][   T73]      inet6_addr_add+0x12f/0xa40
[ 3267.281224][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3267.281224][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3267.281224][   T73]      netlink_rcv_skb+0x130/0x360
[ 3267.281224][   T73]      netlink_unicast+0x449/0x710
[ 3267.281224][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3267.281224][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3267.281224][   T73]      ___sys_sendmsg+0xee/0x170
[ 3267.281224][   T73]      __sys_sendmsg+0xcd/0x170
[ 3267.281224][   T73]      do_syscall_64+0xc6/0x1e0
[ 3267.281224][   T73] 
[ 3267.283422][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3267.283422][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3267.283422][   T73]      ipv6_find_idev+0x102/0x170
[ 3267.283422][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3267.283422][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3267.283422][   T73]      netlink_rcv_skb+0x130/0x360
[ 3267.283422][   T73]      netlink_unicast+0x449/0x710
[ 3267.283422][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3267.283422][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3267.283422][   T73]      ___sys_sendmsg+0xee/0x170
[ 3267.283422][   T73]      __sys_sendmsg+0xcd/0x170
[ 3267.283422][   T73]      do_syscall_64+0xc6/0x1e0
[ 3267.283422][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3267.283422][   T73] 
[ 3267.285141][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3267.285141][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3267.285141][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3267.285141][   T73]      ipv6_find_idev+0x102/0x170
[ 3267.285141][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3267.285141][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3267.285141][   T73]      netlink_rcv_skb+0x130/0x360
[ 3267.285141][   T73]      netlink_unicast+0x449/0x710
[ 3267.285141][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3267.285141][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3267.285141][   T73]      ___sys_sendmsg+0xee/0x170
[ 3267.285141][   T73]      __sys_sendmsg+0xcd/0x170
[ 3267.285141][   T73]      do_syscall_64+0xc6/0x1e0
[ 3267.285141][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3267.285141][   T73] 
[ 3267.287000][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3267.287332][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3267.287332][   T73]      netdev_get_by_index+0x5e/0x80
[ 3267.287332][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3267.287332][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3267.287332][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3267.287332][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3267.287332][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3267.287332][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3267.287332][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3267.287332][   T73]      addrconf_dad_begin+0x310/0x670
[ 3267.287332][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3267.287332][   T73]      process_one_work+0x84d/0x18a0
[ 3267.287332][   T73]      worker_thread+0x587/0xd30
[ 3267.287332][   T73]      kthread+0x28a/0x350
[ 3267.287332][   T73]      ret_from_fork+0x31/0x70
[ 3267.287332][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3267.287332][   T73] 
[ 3267.289352][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3267.289352][   T73]      netdev_get_by_index+0x5e/0x80
[ 3267.289352][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3267.289352][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3267.289352][   T73]      ip6_route_add+0x1c/0x140
[ 3267.289352][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3267.289352][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3267.289352][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3267.289352][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3267.289352][   T73]      netlink_rcv_skb+0x130/0x360
[ 3267.289352][   T73]      netlink_unicast+0x449/0x710
[ 3267.289352][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3267.289352][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3267.289352][   T73]      ___sys_sendmsg+0xee/0x170
[ 3267.289352][   T73]      __sys_sendmsg+0xcd/0x170
[ 3267.289352][   T73]      do_syscall_64+0xc6/0x1e0
[ 3267.289352][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3267.289352][   T73] 
[ 3267.291645][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3267.291645][   T73]      netdev_get_by_index+0x5e/0x80
[ 3267.291645][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3267.291645][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3267.291645][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3267.291645][   T73]      ipv6_add_addr+0x411/0x2000
[ 3267.291645][   T73]      inet6_addr_add+0x30e/0xa40
[ 3267.291645][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3267.291645][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3267.291645][   T73]      netlink_rcv_skb+0x130/0x360
[ 3267.291645][   T73]      netlink_unicast+0x449/0x710
[ 3267.291645][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3267.291645][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3267.291645][   T73]      ___sys_sendmsg+0xee/0x170
[ 3267.291645][   T73]      __sys_sendmsg+0xcd/0x170
[ 3267.291645][   T73]      do_syscall_64+0xc6/0x1e0
[ 3267.291645][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3267.291645][   T73] 
[ 3267.293914][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3267.293914][   T73]      netdev_get_by_index+0x5e/0x80
[ 3267.293914][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3267.293914][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3267.293914][   T73]      ip6_route_add+0x1c/0x140
[ 3267.293914][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3267.293914][   T73]      addrconf_add_dev+0xe2/0x170
[ 3267.293914][   T73]      inet6_addr_add+0x12f/0xa40
[ 3267.293914][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3267.293914][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3267.293914][   T73]      netlink_rcv_skb+0x130/0x360
[ 3267.293914][   T73]      netlink_unicast+0x449/0x710
[ 3267.293914][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3267.293914][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3267.293914][   T73]      ___sys_sendmsg+0xee/0x170
[ 3267.293914][   T73]      __sys_sendmsg+0xcd/0x170
[ 3267.293914][   T73]      do_syscall_64+0xc6/0x1e0
[ 3267.293914][   T73] 
[ 3267.296119][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3267.296119][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3267.296119][   T73]      ipv6_find_idev+0x102/0x170
[ 3267.296119][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3267.296119][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3267.296119][   T73]      netlink_rcv_skb+0x130/0x360
[ 3267.296119][   T73]      netlink_unicast+0x449/0x710
[ 3267.296119][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3267.296119][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3267.296119][   T73]      ___sys_sendmsg+0xee/0x170
[ 3267.296119][   T73]      __sys_sendmsg+0xcd/0x170
[ 3267.296119][   T73]      do_syscall_64+0xc6/0x1e0
[ 3267.296119][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3267.296119][   T73] 
[ 3267.297830][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3267.297830][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3267.297830][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3267.297830][   T73]      ipv6_find_idev+0x102/0x170
[ 3267.297830][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3267.297830][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3267.297830][   T73]      netlink_rcv_skb+0x130/0x360
[ 3267.297830][   T73]      netlink_unicast+0x449/0x710
[ 3267.297830][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3267.297830][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3267.297830][   T73]      ___sys_sendmsg+0xee/0x170
[ 3267.297830][   T73]      __sys_sendmsg+0xcd/0x170
[ 3267.297830][   T73]      do_syscall_64+0xc6/0x1e0
[ 3267.297830][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3267.297830][   T73] 
[ 3277.503748][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3277.504173][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3277.504173][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3277.504173][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3277.504173][   T73]      fib6_nh_init+0xa22/0x1580
[ 3277.504173][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3277.504173][   T73]      ip6_route_add+0x1c/0x140
[ 3277.504173][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3277.504173][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3277.504173][   T73]      netlink_rcv_skb+0x130/0x360
[ 3277.504173][   T73]      netlink_unicast+0x449/0x710
[ 3277.504173][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3277.504173][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3277.504173][   T73]      ___sys_sendmsg+0xee/0x170
[ 3277.504173][   T73]      __sys_sendmsg+0xcd/0x170
[ 3277.504173][   T73]      do_syscall_64+0xc6/0x1e0
[ 3277.504173][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3277.504173][   T73] 
[ 3277.506096][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3277.506096][   T73]      dst_init+0x84/0x4a0
[ 3277.506096][   T73]      dst_alloc+0x97/0x150
[ 3277.506096][   T73]      ip6_dst_alloc+0x23/0x90
[ 3277.506096][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3277.506096][   T73]      ip6_pol_route+0x56f/0x840
[ 3277.506096][   T73]      fib6_rule_lookup+0x456/0x630
[ 3277.506096][   T73]      ip6_route_input+0x59c/0xa50
[ 3277.506096][   T73]      ipv6_rcv+0x397/0x810
[ 3277.506096][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3277.506096][   T73]      process_backlog+0x101/0x620
[ 3277.506096][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3277.506096][   T73]      net_rx_action+0x495/0xbe0
[ 3277.506096][   T73]      __do_softirq+0x1b5/0x7f6
[ 3277.506096][   T73] 
[ 3277.507759][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3277.507759][   T73]      netdev_get_by_index+0x5e/0x80
[ 3277.507759][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3277.507759][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3277.507759][   T73]      ip6_route_add+0x1c/0x140
[ 3277.507759][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3277.507759][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3277.507759][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3277.507759][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3277.507759][   T73]      netlink_rcv_skb+0x130/0x360
[ 3277.507759][   T73]      netlink_unicast+0x449/0x710
[ 3277.507759][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3277.507759][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3277.507759][   T73]      ___sys_sendmsg+0xee/0x170
[ 3277.507759][   T73]      __sys_sendmsg+0xcd/0x170
[ 3277.507759][   T73]      do_syscall_64+0xc6/0x1e0
[ 3277.507759][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3277.507759][   T73] 
[ 3277.509774][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3277.509774][   T73]      netdev_get_by_index+0x5e/0x80
[ 3277.509774][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3277.509774][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3277.509774][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3277.509774][   T73]      ipv6_add_addr+0x411/0x2000
[ 3277.509774][   T73]      inet6_addr_add+0x30e/0xa40
[ 3277.509774][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3277.509774][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3277.509774][   T73]      netlink_rcv_skb+0x130/0x360
[ 3277.509774][   T73]      netlink_unicast+0x449/0x710
[ 3277.509774][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3277.509774][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3277.509774][   T73]      ___sys_sendmsg+0xee/0x170
[ 3277.509774][   T73]      __sys_sendmsg+0xcd/0x170
[ 3277.509774][   T73]      do_syscall_64+0xc6/0x1e0
[ 3277.509774][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3277.509774][   T73] 
[ 3277.511782][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3277.511782][   T73]      netdev_get_by_index+0x5e/0x80
[ 3277.511782][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3277.511782][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3277.511782][   T73]      ip6_route_add+0x1c/0x140
[ 3277.511782][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3277.511782][   T73]      addrconf_add_dev+0xe2/0x170
[ 3277.511782][   T73]      inet6_addr_add+0x12f/0xa40
[ 3277.511782][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3277.511782][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3277.511782][   T73]      netlink_rcv_skb+0x130/0x360
[ 3277.511782][   T73]      netlink_unicast+0x449/0x710
[ 3277.511782][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3277.511782][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3277.511782][   T73]      ___sys_sendmsg+0xee/0x170
[ 3277.511782][   T73]      __sys_sendmsg+0xcd/0x170
[ 3277.511782][   T73]      do_syscall_64+0xc6/0x1e0
[ 3277.511782][   T73] 
[ 3277.513758][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3277.513758][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3277.513758][   T73]      ipv6_find_idev+0x102/0x170
[ 3277.513758][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3277.513758][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3277.513758][   T73]      netlink_rcv_skb+0x130/0x360
[ 3277.513758][   T73]      netlink_unicast+0x449/0x710
[ 3277.513758][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3277.513758][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3277.513758][   T73]      ___sys_sendmsg+0xee/0x170
[ 3277.513758][   T73]      __sys_sendmsg+0xcd/0x170
[ 3277.513758][   T73]      do_syscall_64+0xc6/0x1e0
[ 3277.513758][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3277.513758][   T73] 
[ 3277.515321][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3277.515321][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3277.515321][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3277.515321][   T73]      ipv6_find_idev+0x102/0x170
[ 3277.515321][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3277.515321][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3277.515321][   T73]      netlink_rcv_skb+0x130/0x360
[ 3277.515321][   T73]      netlink_unicast+0x449/0x710
[ 3277.515321][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3277.515321][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3277.515321][   T73]      ___sys_sendmsg+0xee/0x170
[ 3277.515321][   T73]      __sys_sendmsg+0xcd/0x170
[ 3277.515321][   T73]      do_syscall_64+0xc6/0x1e0
[ 3277.515321][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3277.515321][   T73] 
[ 3277.517024][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3277.517309][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3277.517309][   T73]      netdev_get_by_index+0x5e/0x80
[ 3277.517309][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3277.517309][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3277.517309][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3277.517309][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3277.517309][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3277.517309][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3277.517309][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3277.517309][   T73]      addrconf_dad_begin+0x310/0x670
[ 3277.517309][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3277.517309][   T73]      process_one_work+0x84d/0x18a0
[ 3277.517309][   T73]      worker_thread+0x587/0xd30
[ 3277.517309][   T73]      kthread+0x28a/0x350
[ 3277.517309][   T73]      ret_from_fork+0x31/0x70
[ 3277.517309][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3277.517309][   T73] 
[ 3277.519219][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3277.519219][   T73]      netdev_get_by_index+0x5e/0x80
[ 3277.519219][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3277.519219][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3277.519219][   T73]      ip6_route_add+0x1c/0x140
[ 3277.519219][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3277.519219][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3277.519219][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3277.519219][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3277.519219][   T73]      netlink_rcv_skb+0x130/0x360
[ 3277.519219][   T73]      netlink_unicast+0x449/0x710
[ 3277.519219][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3277.519219][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3277.519219][   T73]      ___sys_sendmsg+0xee/0x170
[ 3277.519219][   T73]      __sys_sendmsg+0xcd/0x170
[ 3277.519219][   T73]      do_syscall_64+0xc6/0x1e0
[ 3277.519219][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3277.519219][   T73] 
[ 3277.521233][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3277.521233][   T73]      netdev_get_by_index+0x5e/0x80
[ 3277.521233][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3277.521233][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3277.521233][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3277.521233][   T73]      ipv6_add_addr+0x411/0x2000
[ 3277.521233][   T73]      inet6_addr_add+0x30e/0xa40
[ 3277.521233][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3277.521233][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3277.521233][   T73]      netlink_rcv_skb+0x130/0x360
[ 3277.521233][   T73]      netlink_unicast+0x449/0x710
[ 3277.521233][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3277.521233][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3277.521233][   T73]      ___sys_sendmsg+0xee/0x170
[ 3277.521233][   T73]      __sys_sendmsg+0xcd/0x170
[ 3277.521233][   T73]      do_syscall_64+0xc6/0x1e0
[ 3277.521233][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3277.521233][   T73] 
[ 3277.523239][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3277.523239][   T73]      netdev_get_by_index+0x5e/0x80
[ 3277.523239][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3277.523239][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3277.523239][   T73]      ip6_route_add+0x1c/0x140
[ 3277.523239][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3277.523239][   T73]      addrconf_add_dev+0xe2/0x170
[ 3277.523239][   T73]      inet6_addr_add+0x12f/0xa40
[ 3277.523239][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3277.523239][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3277.523239][   T73]      netlink_rcv_skb+0x130/0x360
[ 3277.523239][   T73]      netlink_unicast+0x449/0x710
[ 3277.523239][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3277.523239][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3277.523239][   T73]      ___sys_sendmsg+0xee/0x170
[ 3277.523239][   T73]      __sys_sendmsg+0xcd/0x170
[ 3277.523239][   T73]      do_syscall_64+0xc6/0x1e0
[ 3277.523239][   T73] 
[ 3277.525207][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3277.525207][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3277.525207][   T73]      ipv6_find_idev+0x102/0x170
[ 3277.525207][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3277.525207][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3277.525207][   T73]      netlink_rcv_skb+0x130/0x360
[ 3277.525207][   T73]      netlink_unicast+0x449/0x710
[ 3277.525207][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3277.525207][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3277.525207][   T73]      ___sys_sendmsg+0xee/0x170
[ 3277.525207][   T73]      __sys_sendmsg+0xcd/0x170
[ 3277.525207][   T73]      do_syscall_64+0xc6/0x1e0
[ 3277.525207][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3277.525207][   T73] 
[ 3277.526741][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3277.526741][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3277.526741][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3277.526741][   T73]      ipv6_find_idev+0x102/0x170
[ 3277.526741][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3277.526741][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3277.526741][   T73]      netlink_rcv_skb+0x130/0x360
[ 3277.526741][   T73]      netlink_unicast+0x449/0x710
[ 3277.526741][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3277.526741][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3277.526741][   T73]      ___sys_sendmsg+0xee/0x170
[ 3277.526741][   T73]      __sys_sendmsg+0xcd/0x170
[ 3277.526741][   T73]      do_syscall_64+0xc6/0x1e0
[ 3277.526741][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3277.526741][   T73] 
[ 3277.528445][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3277.528739][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3277.528739][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3277.528739][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3277.528739][   T73]      fib6_nh_init+0xa22/0x1580
[ 3277.528739][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3277.528739][   T73]      ip6_route_add+0x1c/0x140
[ 3277.528739][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3277.528739][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3277.528739][   T73]      netlink_rcv_skb+0x130/0x360
[ 3277.528739][   T73]      netlink_unicast+0x449/0x710
[ 3277.528739][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3277.528739][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3277.528739][   T73]      ___sys_sendmsg+0xee/0x170
[ 3277.528739][   T73]      __sys_sendmsg+0xcd/0x170
[ 3277.528739][   T73]      do_syscall_64+0xc6/0x1e0
[ 3277.528739][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3277.528739][   T73] 
[ 3277.531314][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3277.531314][   T73]      dst_init+0x84/0x4a0
[ 3277.531314][   T73]      dst_alloc+0x97/0x150
[ 3277.531314][   T73]      ip6_dst_alloc+0x23/0x90
[ 3277.531314][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3277.531314][   T73]      ip6_pol_route+0x56f/0x840
[ 3277.531314][   T73]      fib6_rule_lookup+0x456/0x630
[ 3277.531314][   T73]      ip6_route_input+0x59c/0xa50
[ 3277.531314][   T73]      ipv6_rcv+0x397/0x810
[ 3277.531314][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3277.531314][   T73]      process_backlog+0x101/0x620
[ 3277.531314][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3277.531314][   T73]      net_rx_action+0x495/0xbe0
[ 3277.531314][   T73]      __do_softirq+0x1b5/0x7f6
[ 3277.531314][   T73] 
[ 3277.533186][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3277.533186][   T73]      netdev_get_by_index+0x5e/0x80
[ 3277.533186][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3277.533186][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3277.533186][   T73]      ip6_route_add+0x1c/0x140
[ 3277.533186][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3277.533186][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3277.533186][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3277.533186][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3277.533186][   T73]      netlink_rcv_skb+0x130/0x360
[ 3277.533186][   T73]      netlink_unicast+0x449/0x710
[ 3277.533186][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3277.533186][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3277.533186][   T73]      ___sys_sendmsg+0xee/0x170
[ 3277.533186][   T73]      __sys_sendmsg+0xcd/0x170
[ 3277.533186][   T73]      do_syscall_64+0xc6/0x1e0
[ 3277.533186][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3277.533186][   T73] 
[ 3277.535322][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3277.535322][   T73]      netdev_get_by_index+0x5e/0x80
[ 3277.535322][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3277.535322][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3277.535322][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3277.535322][   T73]      ipv6_add_addr+0x411/0x2000
[ 3277.535322][   T73]      inet6_addr_add+0x30e/0xa40
[ 3277.535322][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3277.535322][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3277.535322][   T73]      netlink_rcv_skb+0x130/0x360
[ 3277.535322][   T73]      netlink_unicast+0x449/0x710
[ 3277.535322][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3277.535322][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3277.535322][   T73]      ___sys_sendmsg+0xee/0x170
[ 3277.535322][   T73]      __sys_sendmsg+0xcd/0x170
[ 3277.535322][   T73]      do_syscall_64+0xc6/0x1e0
[ 3277.535322][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3277.535322][   T73] 
[ 3277.537385][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3277.537385][   T73]      netdev_get_by_index+0x5e/0x80
[ 3277.537385][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3277.537385][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3277.537385][   T73]      ip6_route_add+0x1c/0x140
[ 3277.537385][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3277.537385][   T73]      addrconf_add_dev+0xe2/0x170
[ 3277.537385][   T73]      inet6_addr_add+0x12f/0xa40
[ 3277.537385][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3277.537385][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3277.537385][   T73]      netlink_rcv_skb+0x130/0x360
[ 3277.537385][   T73]      netlink_unicast+0x449/0x710
[ 3277.537385][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3277.537385][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3277.537385][   T73]      ___sys_sendmsg+0xee/0x170
[ 3277.537385][   T73]      __sys_sendmsg+0xcd/0x170
[ 3277.537385][   T73]      do_syscall_64+0xc6/0x1e0
[ 3277.537385][   T73] 
[ 3277.539504][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3277.539504][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3277.539504][   T73]      ipv6_find_idev+0x102/0x170
[ 3277.539504][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3277.539504][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3277.539504][   T73]      netlink_rcv_skb+0x130/0x360
[ 3277.539504][   T73]      netlink_unicast+0x449/0x710
[ 3277.539504][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3277.539504][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3277.539504][   T73]      ___sys_sendmsg+0xee/0x170
[ 3277.539504][   T73]      __sys_sendmsg+0xcd/0x170
[ 3277.539504][   T73]      do_syscall_64+0xc6/0x1e0
[ 3277.539504][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3277.539504][   T73] 
[ 3277.541245][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3277.541245][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3277.541245][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3277.541245][   T73]      ipv6_find_idev+0x102/0x170
[ 3277.541245][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3277.541245][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3277.541245][   T73]      netlink_rcv_skb+0x130/0x360
[ 3277.541245][   T73]      netlink_unicast+0x449/0x710
[ 3277.541245][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3277.541245][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3277.541245][   T73]      ___sys_sendmsg+0xee/0x170
[ 3277.541245][   T73]      __sys_sendmsg+0xcd/0x170
[ 3277.541245][   T73]      do_syscall_64+0xc6/0x1e0
[ 3277.541245][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3277.541245][   T73] 
[ 3277.542990][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3277.543340][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3277.543340][   T73]      netdev_get_by_index+0x5e/0x80
[ 3277.543340][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3277.543340][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3277.543340][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3277.543340][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3277.543340][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3277.543340][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3277.543340][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3277.543340][   T73]      addrconf_dad_begin+0x310/0x670
[ 3277.543340][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3277.543340][   T73]      process_one_work+0x84d/0x18a0
[ 3277.543340][   T73]      worker_thread+0x587/0xd30
[ 3277.543340][   T73]      kthread+0x28a/0x350
[ 3277.543340][   T73]      ret_from_fork+0x31/0x70
[ 3277.543340][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3277.543340][   T73] 
[ 3277.545317][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3277.545317][   T73]      netdev_get_by_index+0x5e/0x80
[ 3277.545317][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3277.545317][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3277.545317][   T73]      ip6_route_add+0x1c/0x140
[ 3277.545317][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3277.545317][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3277.545317][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3277.545317][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3277.545317][   T73]      netlink_rcv_skb+0x130/0x360
[ 3277.545317][   T73]      netlink_unicast+0x449/0x710
[ 3277.545317][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3277.545317][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3277.545317][   T73]      ___sys_sendmsg+0xee/0x170
[ 3277.545317][   T73]      __sys_sendmsg+0xcd/0x170
[ 3277.545317][   T73]      do_syscall_64+0xc6/0x1e0
[ 3277.545317][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3277.545317][   T73] 
[ 3277.547447][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3277.547447][   T73]      netdev_get_by_index+0x5e/0x80
[ 3277.547447][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3277.547447][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3277.547447][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3277.547447][   T73]      ipv6_add_addr+0x411/0x2000
[ 3277.547447][   T73]      inet6_addr_add+0x30e/0xa40
[ 3277.547447][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3277.547447][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3277.547447][   T73]      netlink_rcv_skb+0x130/0x360
[ 3277.547447][   T73]      netlink_unicast+0x449/0x710
[ 3277.547447][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3277.547447][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3277.547447][   T73]      ___sys_sendmsg+0xee/0x170
[ 3277.547447][   T73]      __sys_sendmsg+0xcd/0x170
[ 3277.547447][   T73]      do_syscall_64+0xc6/0x1e0
[ 3277.547447][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3277.547447][   T73] 
[ 3277.549614][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3277.549614][   T73]      netdev_get_by_index+0x5e/0x80
[ 3277.549614][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3277.549614][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3277.549614][   T73]      ip6_route_add+0x1c/0x140
[ 3277.549614][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3277.549614][   T73]      addrconf_add_dev+0xe2/0x170
[ 3277.549614][   T73]      inet6_addr_add+0x12f/0xa40
[ 3277.549614][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3277.549614][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3277.549614][   T73]      netlink_rcv_skb+0x130/0x360
[ 3277.549614][   T73]      netlink_unicast+0x449/0x710
[ 3277.549614][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3277.549614][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3277.549614][   T73]      ___sys_sendmsg+0xee/0x170
[ 3277.549614][   T73]      __sys_sendmsg+0xcd/0x170
[ 3277.549614][   T73]      do_syscall_64+0xc6/0x1e0
[ 3277.549614][   T73] 
[ 3277.557096][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3277.557096][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3277.557096][   T73]      ipv6_find_idev+0x102/0x170
[ 3277.557096][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3277.557096][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3277.557096][   T73]      netlink_rcv_skb+0x130/0x360
[ 3277.557096][   T73]      netlink_unicast+0x449/0x710
[ 3277.557096][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3277.557096][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3277.557096][   T73]      ___sys_sendmsg+0xee/0x170
[ 3277.557096][   T73]      __sys_sendmsg+0xcd/0x170
[ 3277.557096][   T73]      do_syscall_64+0xc6/0x1e0
[ 3277.557096][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3277.557096][   T73] 
[ 3277.558768][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3277.558768][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3277.558768][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3277.558768][   T73]      ipv6_find_idev+0x102/0x170
[ 3277.558768][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3277.558768][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3277.558768][   T73]      netlink_rcv_skb+0x130/0x360
[ 3277.558768][   T73]      netlink_unicast+0x449/0x710
[ 3277.558768][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3277.558768][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3277.558768][   T73]      ___sys_sendmsg+0xee/0x170
[ 3277.558768][   T73]      __sys_sendmsg+0xcd/0x170
[ 3277.558768][   T73]      do_syscall_64+0xc6/0x1e0
[ 3277.558768][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3277.558768][   T73] 
[ 3287.703775][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3287.704264][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3287.704264][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3287.704264][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3287.704264][   T73]      fib6_nh_init+0xa22/0x1580
[ 3287.704264][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3287.704264][   T73]      ip6_route_add+0x1c/0x140
[ 3287.704264][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3287.704264][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3287.704264][   T73]      netlink_rcv_skb+0x130/0x360
[ 3287.704264][   T73]      netlink_unicast+0x449/0x710
[ 3287.704264][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3287.704264][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3287.704264][   T73]      ___sys_sendmsg+0xee/0x170
[ 3287.704264][   T73]      __sys_sendmsg+0xcd/0x170
[ 3287.704264][   T73]      do_syscall_64+0xc6/0x1e0
[ 3287.704264][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3287.704264][   T73] 
[ 3287.706164][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3287.706164][   T73]      dst_init+0x84/0x4a0
[ 3287.706164][   T73]      dst_alloc+0x97/0x150
[ 3287.706164][   T73]      ip6_dst_alloc+0x23/0x90
[ 3287.706164][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3287.706164][   T73]      ip6_pol_route+0x56f/0x840
[ 3287.706164][   T73]      fib6_rule_lookup+0x456/0x630
[ 3287.706164][   T73]      ip6_route_input+0x59c/0xa50
[ 3287.706164][   T73]      ipv6_rcv+0x397/0x810
[ 3287.706164][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3287.706164][   T73]      process_backlog+0x101/0x620
[ 3287.706164][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3287.706164][   T73]      net_rx_action+0x495/0xbe0
[ 3287.706164][   T73]      __do_softirq+0x1b5/0x7f6
[ 3287.706164][   T73] 
[ 3287.707798][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3287.707798][   T73]      netdev_get_by_index+0x5e/0x80
[ 3287.707798][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3287.707798][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3287.707798][   T73]      ip6_route_add+0x1c/0x140
[ 3287.707798][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3287.707798][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3287.707798][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3287.707798][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3287.707798][   T73]      netlink_rcv_skb+0x130/0x360
[ 3287.707798][   T73]      netlink_unicast+0x449/0x710
[ 3287.707798][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3287.707798][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3287.707798][   T73]      ___sys_sendmsg+0xee/0x170
[ 3287.707798][   T73]      __sys_sendmsg+0xcd/0x170
[ 3287.707798][   T73]      do_syscall_64+0xc6/0x1e0
[ 3287.707798][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3287.707798][   T73] 
[ 3287.709799][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3287.709799][   T73]      netdev_get_by_index+0x5e/0x80
[ 3287.709799][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3287.709799][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3287.709799][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3287.709799][   T73]      ipv6_add_addr+0x411/0x2000
[ 3287.709799][   T73]      inet6_addr_add+0x30e/0xa40
[ 3287.709799][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3287.709799][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3287.709799][   T73]      netlink_rcv_skb+0x130/0x360
[ 3287.709799][   T73]      netlink_unicast+0x449/0x710
[ 3287.709799][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3287.709799][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3287.709799][   T73]      ___sys_sendmsg+0xee/0x170
[ 3287.709799][   T73]      __sys_sendmsg+0xcd/0x170
[ 3287.709799][   T73]      do_syscall_64+0xc6/0x1e0
[ 3287.709799][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3287.709799][   T73] 
[ 3287.711794][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3287.711794][   T73]      netdev_get_by_index+0x5e/0x80
[ 3287.711794][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3287.711794][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3287.711794][   T73]      ip6_route_add+0x1c/0x140
[ 3287.711794][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3287.711794][   T73]      addrconf_add_dev+0xe2/0x170
[ 3287.711794][   T73]      inet6_addr_add+0x12f/0xa40
[ 3287.711794][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3287.711794][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3287.711794][   T73]      netlink_rcv_skb+0x130/0x360
[ 3287.711794][   T73]      netlink_unicast+0x449/0x710
[ 3287.711794][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3287.711794][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3287.711794][   T73]      ___sys_sendmsg+0xee/0x170
[ 3287.711794][   T73]      __sys_sendmsg+0xcd/0x170
[ 3287.711794][   T73]      do_syscall_64+0xc6/0x1e0
[ 3287.711794][   T73] 
[ 3287.713758][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3287.713758][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3287.713758][   T73]      ipv6_find_idev+0x102/0x170
[ 3287.713758][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3287.713758][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3287.713758][   T73]      netlink_rcv_skb+0x130/0x360
[ 3287.713758][   T73]      netlink_unicast+0x449/0x710
[ 3287.713758][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3287.713758][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3287.713758][   T73]      ___sys_sendmsg+0xee/0x170
[ 3287.713758][   T73]      __sys_sendmsg+0xcd/0x170
[ 3287.713758][   T73]      do_syscall_64+0xc6/0x1e0
[ 3287.713758][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3287.713758][   T73] 
[ 3287.715308][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3287.715308][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3287.715308][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3287.715308][   T73]      ipv6_find_idev+0x102/0x170
[ 3287.715308][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3287.715308][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3287.715308][   T73]      netlink_rcv_skb+0x130/0x360
[ 3287.715308][   T73]      netlink_unicast+0x449/0x710
[ 3287.715308][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3287.715308][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3287.715308][   T73]      ___sys_sendmsg+0xee/0x170
[ 3287.715308][   T73]      __sys_sendmsg+0xcd/0x170
[ 3287.715308][   T73]      do_syscall_64+0xc6/0x1e0
[ 3287.715308][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3287.715308][   T73] 
[ 3287.717006][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3287.717291][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3287.717291][   T73]      netdev_get_by_index+0x5e/0x80
[ 3287.717291][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3287.717291][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3287.717291][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3287.717291][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3287.717291][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3287.717291][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3287.717291][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3287.717291][   T73]      addrconf_dad_begin+0x310/0x670
[ 3287.717291][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3287.717291][   T73]      process_one_work+0x84d/0x18a0
[ 3287.717291][   T73]      worker_thread+0x587/0xd30
[ 3287.717291][   T73]      kthread+0x28a/0x350
[ 3287.717291][   T73]      ret_from_fork+0x31/0x70
[ 3287.717291][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3287.717291][   T73] 
[ 3287.719214][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3287.719214][   T73]      netdev_get_by_index+0x5e/0x80
[ 3287.719214][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3287.719214][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3287.719214][   T73]      ip6_route_add+0x1c/0x140
[ 3287.719214][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3287.719214][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3287.719214][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3287.719214][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3287.719214][   T73]      netlink_rcv_skb+0x130/0x360
[ 3287.719214][   T73]      netlink_unicast+0x449/0x710
[ 3287.719214][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3287.719214][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3287.719214][   T73]      ___sys_sendmsg+0xee/0x170
[ 3287.719214][   T73]      __sys_sendmsg+0xcd/0x170
[ 3287.719214][   T73]      do_syscall_64+0xc6/0x1e0
[ 3287.719214][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3287.719214][   T73] 
[ 3287.721212][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3287.721212][   T73]      netdev_get_by_index+0x5e/0x80
[ 3287.721212][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3287.721212][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3287.721212][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3287.721212][   T73]      ipv6_add_addr+0x411/0x2000
[ 3287.721212][   T73]      inet6_addr_add+0x30e/0xa40
[ 3287.721212][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3287.721212][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3287.721212][   T73]      netlink_rcv_skb+0x130/0x360
[ 3287.721212][   T73]      netlink_unicast+0x449/0x710
[ 3287.721212][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3287.721212][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3287.721212][   T73]      ___sys_sendmsg+0xee/0x170
[ 3287.721212][   T73]      __sys_sendmsg+0xcd/0x170
[ 3287.721212][   T73]      do_syscall_64+0xc6/0x1e0
[ 3287.721212][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3287.721212][   T73] 
[ 3287.723266][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3287.723266][   T73]      netdev_get_by_index+0x5e/0x80
[ 3287.723266][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3287.723266][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3287.723266][   T73]      ip6_route_add+0x1c/0x140
[ 3287.723266][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3287.723266][   T73]      addrconf_add_dev+0xe2/0x170
[ 3287.723266][   T73]      inet6_addr_add+0x12f/0xa40
[ 3287.723266][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3287.723266][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3287.723266][   T73]      netlink_rcv_skb+0x130/0x360
[ 3287.723266][   T73]      netlink_unicast+0x449/0x710
[ 3287.723266][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3287.723266][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3287.723266][   T73]      ___sys_sendmsg+0xee/0x170
[ 3287.723266][   T73]      __sys_sendmsg+0xcd/0x170
[ 3287.723266][   T73]      do_syscall_64+0xc6/0x1e0
[ 3287.723266][   T73] 
[ 3287.725235][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3287.725235][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3287.725235][   T73]      ipv6_find_idev+0x102/0x170
[ 3287.725235][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3287.725235][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3287.725235][   T73]      netlink_rcv_skb+0x130/0x360
[ 3287.725235][   T73]      netlink_unicast+0x449/0x710
[ 3287.725235][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3287.725235][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3287.725235][   T73]      ___sys_sendmsg+0xee/0x170
[ 3287.725235][   T73]      __sys_sendmsg+0xcd/0x170
[ 3287.725235][   T73]      do_syscall_64+0xc6/0x1e0
[ 3287.725235][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3287.725235][   T73] 
[ 3287.726774][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3287.726774][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3287.726774][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3287.726774][   T73]      ipv6_find_idev+0x102/0x170
[ 3287.726774][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3287.726774][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3287.726774][   T73]      netlink_rcv_skb+0x130/0x360
[ 3287.726774][   T73]      netlink_unicast+0x449/0x710
[ 3287.726774][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3287.726774][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3287.726774][   T73]      ___sys_sendmsg+0xee/0x170
[ 3287.726774][   T73]      __sys_sendmsg+0xcd/0x170
[ 3287.726774][   T73]      do_syscall_64+0xc6/0x1e0
[ 3287.726774][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3287.726774][   T73] 
[ 3287.728471][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3287.728753][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3287.728753][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3287.728753][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3287.728753][   T73]      fib6_nh_init+0xa22/0x1580
[ 3287.728753][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3287.728753][   T73]      ip6_route_add+0x1c/0x140
[ 3287.728753][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3287.728753][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3287.728753][   T73]      netlink_rcv_skb+0x130/0x360
[ 3287.728753][   T73]      netlink_unicast+0x449/0x710
[ 3287.728753][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3287.728753][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3287.728753][   T73]      ___sys_sendmsg+0xee/0x170
[ 3287.728753][   T73]      __sys_sendmsg+0xcd/0x170
[ 3287.728753][   T73]      do_syscall_64+0xc6/0x1e0
[ 3287.728753][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3287.728753][   T73] 
[ 3287.730825][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3287.730825][   T73]      dst_init+0x84/0x4a0
[ 3287.730825][   T73]      dst_alloc+0x97/0x150
[ 3287.730825][   T73]      ip6_dst_alloc+0x23/0x90
[ 3287.730825][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3287.730825][   T73]      ip6_pol_route+0x56f/0x840
[ 3287.730825][   T73]      fib6_rule_lookup+0x456/0x630
[ 3287.730825][   T73]      ip6_route_input+0x59c/0xa50
[ 3287.730825][   T73]      ipv6_rcv+0x397/0x810
[ 3287.730825][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3287.730825][   T73]      process_backlog+0x101/0x620
[ 3287.730825][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3287.730825][   T73]      net_rx_action+0x495/0xbe0
[ 3287.730825][   T73]      __do_softirq+0x1b5/0x7f6
[ 3287.730825][   T73] 
[ 3287.732641][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3287.732641][   T73]      netdev_get_by_index+0x5e/0x80
[ 3287.732641][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3287.732641][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3287.732641][   T73]      ip6_route_add+0x1c/0x140
[ 3287.732641][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3287.732641][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3287.732641][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3287.732641][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3287.732641][   T73]      netlink_rcv_skb+0x130/0x360
[ 3287.732641][   T73]      netlink_unicast+0x449/0x710
[ 3287.732641][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3287.732641][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3287.732641][   T73]      ___sys_sendmsg+0xee/0x170
[ 3287.732641][   T73]      __sys_sendmsg+0xcd/0x170
[ 3287.732641][   T73]      do_syscall_64+0xc6/0x1e0
[ 3287.732641][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3287.732641][   T73] 
[ 3287.734886][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3287.734886][   T73]      netdev_get_by_index+0x5e/0x80
[ 3287.734886][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3287.734886][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3287.734886][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3287.734886][   T73]      ipv6_add_addr+0x411/0x2000
[ 3287.734886][   T73]      inet6_addr_add+0x30e/0xa40
[ 3287.734886][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3287.734886][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3287.734886][   T73]      netlink_rcv_skb+0x130/0x360
[ 3287.734886][   T73]      netlink_unicast+0x449/0x710
[ 3287.734886][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3287.734886][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3287.734886][   T73]      ___sys_sendmsg+0xee/0x170
[ 3287.734886][   T73]      __sys_sendmsg+0xcd/0x170
[ 3287.734886][   T73]      do_syscall_64+0xc6/0x1e0
[ 3287.734886][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3287.734886][   T73] 
[ 3287.737159][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3287.737159][   T73]      netdev_get_by_index+0x5e/0x80
[ 3287.737159][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3287.737159][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3287.737159][   T73]      ip6_route_add+0x1c/0x140
[ 3287.737159][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3287.737159][   T73]      addrconf_add_dev+0xe2/0x170
[ 3287.737159][   T73]      inet6_addr_add+0x12f/0xa40
[ 3287.737159][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3287.737159][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3287.737159][   T73]      netlink_rcv_skb+0x130/0x360
[ 3287.737159][   T73]      netlink_unicast+0x449/0x710
[ 3287.737159][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3287.737159][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3287.737159][   T73]      ___sys_sendmsg+0xee/0x170
[ 3287.737159][   T73]      __sys_sendmsg+0xcd/0x170
[ 3287.737159][   T73]      do_syscall_64+0xc6/0x1e0
[ 3287.737159][   T73] 
[ 3287.739385][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3287.739385][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3287.739385][   T73]      ipv6_find_idev+0x102/0x170
[ 3287.739385][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3287.739385][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3287.739385][   T73]      netlink_rcv_skb+0x130/0x360
[ 3287.739385][   T73]      netlink_unicast+0x449/0x710
[ 3287.739385][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3287.739385][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3287.739385][   T73]      ___sys_sendmsg+0xee/0x170
[ 3287.739385][   T73]      __sys_sendmsg+0xcd/0x170
[ 3287.739385][   T73]      do_syscall_64+0xc6/0x1e0
[ 3287.739385][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3287.739385][   T73] 
[ 3287.741110][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3287.741110][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3287.741110][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3287.741110][   T73]      ipv6_find_idev+0x102/0x170
[ 3287.741110][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3287.741110][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3287.741110][   T73]      netlink_rcv_skb+0x130/0x360
[ 3287.741110][   T73]      netlink_unicast+0x449/0x710
[ 3287.741110][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3287.741110][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3287.741110][   T73]      ___sys_sendmsg+0xee/0x170
[ 3287.741110][   T73]      __sys_sendmsg+0xcd/0x170
[ 3287.741110][   T73]      do_syscall_64+0xc6/0x1e0
[ 3287.741110][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3287.741110][   T73] 
[ 3287.742996][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3287.743351][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3287.743351][   T73]      netdev_get_by_index+0x5e/0x80
[ 3287.743351][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3287.743351][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3287.743351][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3287.743351][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3287.743351][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3287.743351][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3287.743351][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3287.743351][   T73]      addrconf_dad_begin+0x310/0x670
[ 3287.743351][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3287.743351][   T73]      process_one_work+0x84d/0x18a0
[ 3287.743351][   T73]      worker_thread+0x587/0xd30
[ 3287.743351][   T73]      kthread+0x28a/0x350
[ 3287.743351][   T73]      ret_from_fork+0x31/0x70
[ 3287.743351][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3287.743351][   T73] 
[ 3287.745419][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3287.745419][   T73]      netdev_get_by_index+0x5e/0x80
[ 3287.745419][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3287.745419][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3287.745419][   T73]      ip6_route_add+0x1c/0x140
[ 3287.745419][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3287.745419][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3287.745419][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3287.745419][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3287.745419][   T73]      netlink_rcv_skb+0x130/0x360
[ 3287.745419][   T73]      netlink_unicast+0x449/0x710
[ 3287.745419][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3287.745419][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3287.745419][   T73]      ___sys_sendmsg+0xee/0x170
[ 3287.745419][   T73]      __sys_sendmsg+0xcd/0x170
[ 3287.745419][   T73]      do_syscall_64+0xc6/0x1e0
[ 3287.745419][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3287.745419][   T73] 
[ 3287.747754][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3287.747754][   T73]      netdev_get_by_index+0x5e/0x80
[ 3287.747754][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3287.747754][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3287.747754][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3287.747754][   T73]      ipv6_add_addr+0x411/0x2000
[ 3287.747754][   T73]      inet6_addr_add+0x30e/0xa40
[ 3287.747754][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3287.747754][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3287.747754][   T73]      netlink_rcv_skb+0x130/0x360
[ 3287.747754][   T73]      netlink_unicast+0x449/0x710
[ 3287.747754][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3287.747754][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3287.747754][   T73]      ___sys_sendmsg+0xee/0x170
[ 3287.747754][   T73]      __sys_sendmsg+0xcd/0x170
[ 3287.747754][   T73]      do_syscall_64+0xc6/0x1e0
[ 3287.747754][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3287.747754][   T73] 
[ 3287.750004][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3287.750004][   T73]      netdev_get_by_index+0x5e/0x80
[ 3287.750004][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3287.750004][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3287.750004][   T73]      ip6_route_add+0x1c/0x140
[ 3287.750004][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3287.750004][   T73]      addrconf_add_dev+0xe2/0x170
[ 3287.750004][   T73]      inet6_addr_add+0x12f/0xa40
[ 3287.750004][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3287.750004][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3287.750004][   T73]      netlink_rcv_skb+0x130/0x360
[ 3287.750004][   T73]      netlink_unicast+0x449/0x710
[ 3287.750004][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3287.750004][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3287.750004][   T73]      ___sys_sendmsg+0xee/0x170
[ 3287.750004][   T73]      __sys_sendmsg+0xcd/0x170
[ 3287.750004][   T73]      do_syscall_64+0xc6/0x1e0
[ 3287.750004][   T73] 
[ 3287.752230][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3287.752230][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3287.752230][   T73]      ipv6_find_idev+0x102/0x170
[ 3287.752230][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3287.752230][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3287.752230][   T73]      netlink_rcv_skb+0x130/0x360
[ 3287.752230][   T73]      netlink_unicast+0x449/0x710
[ 3287.752230][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3287.752230][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3287.752230][   T73]      ___sys_sendmsg+0xee/0x170
[ 3287.752230][   T73]      __sys_sendmsg+0xcd/0x170
[ 3287.752230][   T73]      do_syscall_64+0xc6/0x1e0
[ 3287.752230][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3287.752230][   T73] 
[ 3287.754083][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3287.754083][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3287.754083][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3287.754083][   T73]      ipv6_find_idev+0x102/0x170
[ 3287.754083][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3287.754083][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3287.754083][   T73]      netlink_rcv_skb+0x130/0x360
[ 3287.754083][   T73]      netlink_unicast+0x449/0x710
[ 3287.754083][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3287.754083][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3287.754083][   T73]      ___sys_sendmsg+0xee/0x170
[ 3287.754083][   T73]      __sys_sendmsg+0xcd/0x170
[ 3287.754083][   T73]      do_syscall_64+0xc6/0x1e0
[ 3287.754083][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3287.754083][   T73] 
[ 3297.887798][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3297.888309][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3297.888309][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3297.888309][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3297.888309][   T73]      fib6_nh_init+0xa22/0x1580
[ 3297.888309][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3297.888309][   T73]      ip6_route_add+0x1c/0x140
[ 3297.888309][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3297.888309][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3297.888309][   T73]      netlink_rcv_skb+0x130/0x360
[ 3297.888309][   T73]      netlink_unicast+0x449/0x710
[ 3297.888309][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3297.888309][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3297.888309][   T73]      ___sys_sendmsg+0xee/0x170
[ 3297.888309][   T73]      __sys_sendmsg+0xcd/0x170
[ 3297.888309][   T73]      do_syscall_64+0xc6/0x1e0
[ 3297.888309][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3297.888309][   T73] 
[ 3297.890248][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3297.890248][   T73]      dst_init+0x84/0x4a0
[ 3297.890248][   T73]      dst_alloc+0x97/0x150
[ 3297.890248][   T73]      ip6_dst_alloc+0x23/0x90
[ 3297.890248][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3297.890248][   T73]      ip6_pol_route+0x56f/0x840
[ 3297.890248][   T73]      fib6_rule_lookup+0x456/0x630
[ 3297.890248][   T73]      ip6_route_input+0x59c/0xa50
[ 3297.890248][   T73]      ipv6_rcv+0x397/0x810
[ 3297.890248][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3297.890248][   T73]      process_backlog+0x101/0x620
[ 3297.890248][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3297.890248][   T73]      net_rx_action+0x495/0xbe0
[ 3297.890248][   T73]      __do_softirq+0x1b5/0x7f6
[ 3297.890248][   T73] 
[ 3297.891922][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3297.891922][   T73]      netdev_get_by_index+0x5e/0x80
[ 3297.891922][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3297.891922][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3297.891922][   T73]      ip6_route_add+0x1c/0x140
[ 3297.891922][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3297.891922][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3297.891922][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3297.891922][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3297.891922][   T73]      netlink_rcv_skb+0x130/0x360
[ 3297.891922][   T73]      netlink_unicast+0x449/0x710
[ 3297.891922][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3297.891922][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3297.891922][   T73]      ___sys_sendmsg+0xee/0x170
[ 3297.891922][   T73]      __sys_sendmsg+0xcd/0x170
[ 3297.891922][   T73]      do_syscall_64+0xc6/0x1e0
[ 3297.891922][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3297.891922][   T73] 
[ 3297.893946][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3297.893946][   T73]      netdev_get_by_index+0x5e/0x80
[ 3297.893946][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3297.893946][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3297.893946][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3297.893946][   T73]      ipv6_add_addr+0x411/0x2000
[ 3297.893946][   T73]      inet6_addr_add+0x30e/0xa40
[ 3297.893946][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3297.893946][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3297.893946][   T73]      netlink_rcv_skb+0x130/0x360
[ 3297.893946][   T73]      netlink_unicast+0x449/0x710
[ 3297.893946][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3297.893946][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3297.893946][   T73]      ___sys_sendmsg+0xee/0x170
[ 3297.893946][   T73]      __sys_sendmsg+0xcd/0x170
[ 3297.893946][   T73]      do_syscall_64+0xc6/0x1e0
[ 3297.893946][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3297.893946][   T73] 
[ 3297.895968][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3297.895968][   T73]      netdev_get_by_index+0x5e/0x80
[ 3297.895968][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3297.895968][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3297.895968][   T73]      ip6_route_add+0x1c/0x140
[ 3297.895968][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3297.895968][   T73]      addrconf_add_dev+0xe2/0x170
[ 3297.895968][   T73]      inet6_addr_add+0x12f/0xa40
[ 3297.895968][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3297.895968][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3297.895968][   T73]      netlink_rcv_skb+0x130/0x360
[ 3297.895968][   T73]      netlink_unicast+0x449/0x710
[ 3297.895968][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3297.895968][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3297.895968][   T73]      ___sys_sendmsg+0xee/0x170
[ 3297.895968][   T73]      __sys_sendmsg+0xcd/0x170
[ 3297.895968][   T73]      do_syscall_64+0xc6/0x1e0
[ 3297.895968][   T73] 
[ 3297.897959][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3297.897959][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3297.897959][   T73]      ipv6_find_idev+0x102/0x170
[ 3297.897959][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3297.897959][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3297.897959][   T73]      netlink_rcv_skb+0x130/0x360
[ 3297.897959][   T73]      netlink_unicast+0x449/0x710
[ 3297.897959][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3297.897959][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3297.897959][   T73]      ___sys_sendmsg+0xee/0x170
[ 3297.897959][   T73]      __sys_sendmsg+0xcd/0x170
[ 3297.897959][   T73]      do_syscall_64+0xc6/0x1e0
[ 3297.897959][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3297.897959][   T73] 
[ 3297.899538][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3297.899538][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3297.899538][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3297.899538][   T73]      ipv6_find_idev+0x102/0x170
[ 3297.899538][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3297.899538][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3297.899538][   T73]      netlink_rcv_skb+0x130/0x360
[ 3297.899538][   T73]      netlink_unicast+0x449/0x710
[ 3297.899538][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3297.899538][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3297.899538][   T73]      ___sys_sendmsg+0xee/0x170
[ 3297.899538][   T73]      __sys_sendmsg+0xcd/0x170
[ 3297.899538][   T73]      do_syscall_64+0xc6/0x1e0
[ 3297.899538][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3297.899538][   T73] 
[ 3297.901268][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3297.901561][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3297.901561][   T73]      netdev_get_by_index+0x5e/0x80
[ 3297.901561][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3297.901561][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3297.901561][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3297.901561][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3297.901561][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3297.901561][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3297.901561][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3297.901561][   T73]      addrconf_dad_begin+0x310/0x670
[ 3297.901561][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3297.901561][   T73]      process_one_work+0x84d/0x18a0
[ 3297.901561][   T73]      worker_thread+0x587/0xd30
[ 3297.901561][   T73]      kthread+0x28a/0x350
[ 3297.901561][   T73]      ret_from_fork+0x31/0x70
[ 3297.901561][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3297.901561][   T73] 
[ 3297.903493][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3297.903493][   T73]      netdev_get_by_index+0x5e/0x80
[ 3297.903493][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3297.903493][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3297.903493][   T73]      ip6_route_add+0x1c/0x140
[ 3297.903493][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3297.903493][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3297.903493][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3297.903493][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3297.903493][   T73]      netlink_rcv_skb+0x130/0x360
[ 3297.903493][   T73]      netlink_unicast+0x449/0x710
[ 3297.903493][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3297.903493][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3297.903493][   T73]      ___sys_sendmsg+0xee/0x170
[ 3297.903493][   T73]      __sys_sendmsg+0xcd/0x170
[ 3297.903493][   T73]      do_syscall_64+0xc6/0x1e0
[ 3297.903493][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3297.903493][   T73] 
[ 3297.905520][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3297.905520][   T73]      netdev_get_by_index+0x5e/0x80
[ 3297.905520][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3297.905520][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3297.905520][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3297.905520][   T73]      ipv6_add_addr+0x411/0x2000
[ 3297.905520][   T73]      inet6_addr_add+0x30e/0xa40
[ 3297.905520][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3297.905520][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3297.905520][   T73]      netlink_rcv_skb+0x130/0x360
[ 3297.905520][   T73]      netlink_unicast+0x449/0x710
[ 3297.905520][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3297.905520][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3297.905520][   T73]      ___sys_sendmsg+0xee/0x170
[ 3297.905520][   T73]      __sys_sendmsg+0xcd/0x170
[ 3297.905520][   T73]      do_syscall_64+0xc6/0x1e0
[ 3297.905520][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3297.905520][   T73] 
[ 3297.907539][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3297.907539][   T73]      netdev_get_by_index+0x5e/0x80
[ 3297.907539][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3297.907539][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3297.907539][   T73]      ip6_route_add+0x1c/0x140
[ 3297.907539][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3297.907539][   T73]      addrconf_add_dev+0xe2/0x170
[ 3297.907539][   T73]      inet6_addr_add+0x12f/0xa40
[ 3297.907539][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3297.907539][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3297.907539][   T73]      netlink_rcv_skb+0x130/0x360
[ 3297.907539][   T73]      netlink_unicast+0x449/0x710
[ 3297.907539][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3297.907539][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3297.907539][   T73]      ___sys_sendmsg+0xee/0x170
[ 3297.907539][   T73]      __sys_sendmsg+0xcd/0x170
[ 3297.907539][   T73]      do_syscall_64+0xc6/0x1e0
[ 3297.907539][   T73] 
[ 3297.909610][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3297.909610][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3297.909610][   T73]      ipv6_find_idev+0x102/0x170
[ 3297.909610][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3297.909610][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3297.909610][   T73]      netlink_rcv_skb+0x130/0x360
[ 3297.909610][   T73]      netlink_unicast+0x449/0x710
[ 3297.909610][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3297.909610][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3297.909610][   T73]      ___sys_sendmsg+0xee/0x170
[ 3297.909610][   T73]      __sys_sendmsg+0xcd/0x170
[ 3297.909610][   T73]      do_syscall_64+0xc6/0x1e0
[ 3297.909610][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3297.909610][   T73] 
[ 3297.911162][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3297.911162][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3297.911162][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3297.911162][   T73]      ipv6_find_idev+0x102/0x170
[ 3297.911162][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3297.911162][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3297.911162][   T73]      netlink_rcv_skb+0x130/0x360
[ 3297.911162][   T73]      netlink_unicast+0x449/0x710
[ 3297.911162][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3297.911162][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3297.911162][   T73]      ___sys_sendmsg+0xee/0x170
[ 3297.911162][   T73]      __sys_sendmsg+0xcd/0x170
[ 3297.911162][   T73]      do_syscall_64+0xc6/0x1e0
[ 3297.911162][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3297.911162][   T73] 
[ 3297.912866][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3297.913136][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3297.913136][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3297.913136][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3297.913136][   T73]      fib6_nh_init+0xa22/0x1580
[ 3297.913136][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3297.913136][   T73]      ip6_route_add+0x1c/0x140
[ 3297.913136][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3297.913136][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3297.913136][   T73]      netlink_rcv_skb+0x130/0x360
[ 3297.913136][   T73]      netlink_unicast+0x449/0x710
[ 3297.913136][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3297.913136][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3297.913136][   T73]      ___sys_sendmsg+0xee/0x170
[ 3297.913136][   T73]      __sys_sendmsg+0xcd/0x170
[ 3297.913136][   T73]      do_syscall_64+0xc6/0x1e0
[ 3297.913136][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3297.913136][   T73] 
[ 3297.915217][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3297.915217][   T73]      dst_init+0x84/0x4a0
[ 3297.915217][   T73]      dst_alloc+0x97/0x150
[ 3297.915217][   T73]      ip6_dst_alloc+0x23/0x90
[ 3297.915217][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3297.915217][   T73]      ip6_pol_route+0x56f/0x840
[ 3297.915217][   T73]      fib6_rule_lookup+0x456/0x630
[ 3297.915217][   T73]      ip6_route_input+0x59c/0xa50
[ 3297.915217][   T73]      ipv6_rcv+0x397/0x810
[ 3297.915217][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3297.915217][   T73]      process_backlog+0x101/0x620
[ 3297.915217][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3297.915217][   T73]      net_rx_action+0x495/0xbe0
[ 3297.915217][   T73]      __do_softirq+0x1b5/0x7f6
[ 3297.915217][   T73] 
[ 3297.917107][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3297.917107][   T73]      netdev_get_by_index+0x5e/0x80
[ 3297.917107][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3297.917107][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3297.917107][   T73]      ip6_route_add+0x1c/0x140
[ 3297.917107][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3297.917107][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3297.917107][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3297.917107][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3297.917107][   T73]      netlink_rcv_skb+0x130/0x360
[ 3297.917107][   T73]      netlink_unicast+0x449/0x710
[ 3297.917107][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3297.917107][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3297.917107][   T73]      ___sys_sendmsg+0xee/0x170
[ 3297.917107][   T73]      __sys_sendmsg+0xcd/0x170
[ 3297.917107][   T73]      do_syscall_64+0xc6/0x1e0
[ 3297.917107][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3297.917107][   T73] 
[ 3297.919398][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3297.919398][   T73]      netdev_get_by_index+0x5e/0x80
[ 3297.919398][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3297.919398][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3297.919398][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3297.919398][   T73]      ipv6_add_addr+0x411/0x2000
[ 3297.919398][   T73]      inet6_addr_add+0x30e/0xa40
[ 3297.919398][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3297.919398][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3297.919398][   T73]      netlink_rcv_skb+0x130/0x360
[ 3297.919398][   T73]      netlink_unicast+0x449/0x710
[ 3297.919398][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3297.919398][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3297.919398][   T73]      ___sys_sendmsg+0xee/0x170
[ 3297.919398][   T73]      __sys_sendmsg+0xcd/0x170
[ 3297.919398][   T73]      do_syscall_64+0xc6/0x1e0
[ 3297.919398][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3297.919398][   T73] 
[ 3297.921668][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3297.921668][   T73]      netdev_get_by_index+0x5e/0x80
[ 3297.921668][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3297.921668][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3297.921668][   T73]      ip6_route_add+0x1c/0x140
[ 3297.921668][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3297.921668][   T73]      addrconf_add_dev+0xe2/0x170
[ 3297.921668][   T73]      inet6_addr_add+0x12f/0xa40
[ 3297.921668][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3297.921668][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3297.921668][   T73]      netlink_rcv_skb+0x130/0x360
[ 3297.921668][   T73]      netlink_unicast+0x449/0x710
[ 3297.921668][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3297.921668][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3297.921668][   T73]      ___sys_sendmsg+0xee/0x170
[ 3297.921668][   T73]      __sys_sendmsg+0xcd/0x170
[ 3297.921668][   T73]      do_syscall_64+0xc6/0x1e0
[ 3297.921668][   T73] 
[ 3297.923868][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3297.923868][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3297.923868][   T73]      ipv6_find_idev+0x102/0x170
[ 3297.923868][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3297.923868][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3297.923868][   T73]      netlink_rcv_skb+0x130/0x360
[ 3297.923868][   T73]      netlink_unicast+0x449/0x710
[ 3297.923868][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3297.923868][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3297.923868][   T73]      ___sys_sendmsg+0xee/0x170
[ 3297.923868][   T73]      __sys_sendmsg+0xcd/0x170
[ 3297.923868][   T73]      do_syscall_64+0xc6/0x1e0
[ 3297.923868][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3297.923868][   T73] 
[ 3297.925663][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3297.925663][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3297.925663][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3297.925663][   T73]      ipv6_find_idev+0x102/0x170
[ 3297.925663][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3297.925663][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3297.925663][   T73]      netlink_rcv_skb+0x130/0x360
[ 3297.925663][   T73]      netlink_unicast+0x449/0x710
[ 3297.925663][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3297.925663][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3297.925663][   T73]      ___sys_sendmsg+0xee/0x170
[ 3297.925663][   T73]      __sys_sendmsg+0xcd/0x170
[ 3297.925663][   T73]      do_syscall_64+0xc6/0x1e0
[ 3297.925663][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3297.925663][   T73] 
[ 3297.927615][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3297.928337][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3297.928337][   T73]      netdev_get_by_index+0x5e/0x80
[ 3297.928337][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3297.928337][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3297.928337][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3297.928337][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3297.928337][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3297.928337][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3297.928337][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3297.928337][   T73]      addrconf_dad_begin+0x310/0x670
[ 3297.928337][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3297.928337][   T73]      process_one_work+0x84d/0x18a0
[ 3297.928337][   T73]      worker_thread+0x587/0xd30
[ 3297.928337][   T73]      kthread+0x28a/0x350
[ 3297.928337][   T73]      ret_from_fork+0x31/0x70
[ 3297.928337][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3297.928337][   T73] 
[ 3297.930263][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3297.930263][   T73]      netdev_get_by_index+0x5e/0x80
[ 3297.930263][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3297.930263][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3297.930263][   T73]      ip6_route_add+0x1c/0x140
[ 3297.930263][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3297.930263][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3297.930263][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3297.930263][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3297.930263][   T73]      netlink_rcv_skb+0x130/0x360
[ 3297.930263][   T73]      netlink_unicast+0x449/0x710
[ 3297.930263][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3297.930263][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3297.930263][   T73]      ___sys_sendmsg+0xee/0x170
[ 3297.930263][   T73]      __sys_sendmsg+0xcd/0x170
[ 3297.930263][   T73]      do_syscall_64+0xc6/0x1e0
[ 3297.930263][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3297.930263][   T73] 
[ 3297.932402][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3297.932402][   T73]      netdev_get_by_index+0x5e/0x80
[ 3297.932402][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3297.932402][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3297.932402][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3297.932402][   T73]      ipv6_add_addr+0x411/0x2000
[ 3297.932402][   T73]      inet6_addr_add+0x30e/0xa40
[ 3297.932402][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3297.932402][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3297.932402][   T73]      netlink_rcv_skb+0x130/0x360
[ 3297.932402][   T73]      netlink_unicast+0x449/0x710
[ 3297.932402][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3297.932402][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3297.932402][   T73]      ___sys_sendmsg+0xee/0x170
[ 3297.932402][   T73]      __sys_sendmsg+0xcd/0x170
[ 3297.932402][   T73]      do_syscall_64+0xc6/0x1e0
[ 3297.932402][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3297.932402][   T73] 
[ 3297.934659][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3297.934659][   T73]      netdev_get_by_index+0x5e/0x80
[ 3297.934659][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3297.934659][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3297.934659][   T73]      ip6_route_add+0x1c/0x140
[ 3297.934659][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3297.934659][   T73]      addrconf_add_dev+0xe2/0x170
[ 3297.934659][   T73]      inet6_addr_add+0x12f/0xa40
[ 3297.934659][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3297.934659][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3297.934659][   T73]      netlink_rcv_skb+0x130/0x360
[ 3297.934659][   T73]      netlink_unicast+0x449/0x710
[ 3297.934659][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3297.934659][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3297.934659][   T73]      ___sys_sendmsg+0xee/0x170
[ 3297.934659][   T73]      __sys_sendmsg+0xcd/0x170
[ 3297.934659][   T73]      do_syscall_64+0xc6/0x1e0
[ 3297.934659][   T73] 
[ 3297.936834][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3297.936834][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3297.936834][   T73]      ipv6_find_idev+0x102/0x170
[ 3297.936834][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3297.936834][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3297.936834][   T73]      netlink_rcv_skb+0x130/0x360
[ 3297.936834][   T73]      netlink_unicast+0x449/0x710
[ 3297.936834][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3297.936834][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3297.936834][   T73]      ___sys_sendmsg+0xee/0x170
[ 3297.936834][   T73]      __sys_sendmsg+0xcd/0x170
[ 3297.936834][   T73]      do_syscall_64+0xc6/0x1e0
[ 3297.936834][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3297.936834][   T73] 
[ 3297.938624][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3297.938624][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3297.938624][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3297.938624][   T73]      ipv6_find_idev+0x102/0x170
[ 3297.938624][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3297.938624][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3297.938624][   T73]      netlink_rcv_skb+0x130/0x360
[ 3297.938624][   T73]      netlink_unicast+0x449/0x710
[ 3297.938624][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3297.938624][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3297.938624][   T73]      ___sys_sendmsg+0xee/0x170
[ 3297.938624][   T73]      __sys_sendmsg+0xcd/0x170
[ 3297.938624][   T73]      do_syscall_64+0xc6/0x1e0
[ 3297.938624][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3297.938624][   T73] 
[ 3308.119832][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3308.120299][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3308.120299][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3308.120299][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3308.120299][   T73]      fib6_nh_init+0xa22/0x1580
[ 3308.120299][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3308.120299][   T73]      ip6_route_add+0x1c/0x140
[ 3308.120299][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3308.120299][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3308.120299][   T73]      netlink_rcv_skb+0x130/0x360
[ 3308.120299][   T73]      netlink_unicast+0x449/0x710
[ 3308.120299][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3308.120299][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3308.120299][   T73]      ___sys_sendmsg+0xee/0x170
[ 3308.120299][   T73]      __sys_sendmsg+0xcd/0x170
[ 3308.120299][   T73]      do_syscall_64+0xc6/0x1e0
[ 3308.120299][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3308.120299][   T73] 
[ 3308.122219][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3308.122219][   T73]      dst_init+0x84/0x4a0
[ 3308.122219][   T73]      dst_alloc+0x97/0x150
[ 3308.122219][   T73]      ip6_dst_alloc+0x23/0x90
[ 3308.122219][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3308.122219][   T73]      ip6_pol_route+0x56f/0x840
[ 3308.122219][   T73]      fib6_rule_lookup+0x456/0x630
[ 3308.122219][   T73]      ip6_route_input+0x59c/0xa50
[ 3308.122219][   T73]      ipv6_rcv+0x397/0x810
[ 3308.122219][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3308.122219][   T73]      process_backlog+0x101/0x620
[ 3308.122219][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3308.122219][   T73]      net_rx_action+0x495/0xbe0
[ 3308.122219][   T73]      __do_softirq+0x1b5/0x7f6
[ 3308.122219][   T73] 
[ 3308.123920][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3308.123920][   T73]      netdev_get_by_index+0x5e/0x80
[ 3308.123920][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3308.123920][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3308.123920][   T73]      ip6_route_add+0x1c/0x140
[ 3308.123920][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3308.123920][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3308.123920][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3308.123920][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3308.123920][   T73]      netlink_rcv_skb+0x130/0x360
[ 3308.123920][   T73]      netlink_unicast+0x449/0x710
[ 3308.123920][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3308.123920][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3308.123920][   T73]      ___sys_sendmsg+0xee/0x170
[ 3308.123920][   T73]      __sys_sendmsg+0xcd/0x170
[ 3308.123920][   T73]      do_syscall_64+0xc6/0x1e0
[ 3308.123920][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3308.123920][   T73] 
[ 3308.125950][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3308.125950][   T73]      netdev_get_by_index+0x5e/0x80
[ 3308.125950][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3308.125950][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3308.125950][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3308.125950][   T73]      ipv6_add_addr+0x411/0x2000
[ 3308.125950][   T73]      inet6_addr_add+0x30e/0xa40
[ 3308.125950][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3308.125950][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3308.125950][   T73]      netlink_rcv_skb+0x130/0x360
[ 3308.125950][   T73]      netlink_unicast+0x449/0x710
[ 3308.125950][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3308.125950][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3308.125950][   T73]      ___sys_sendmsg+0xee/0x170
[ 3308.125950][   T73]      __sys_sendmsg+0xcd/0x170
[ 3308.125950][   T73]      do_syscall_64+0xc6/0x1e0
[ 3308.125950][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3308.125950][   T73] 
[ 3308.127970][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3308.127970][   T73]      netdev_get_by_index+0x5e/0x80
[ 3308.127970][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3308.127970][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3308.127970][   T73]      ip6_route_add+0x1c/0x140
[ 3308.127970][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3308.127970][   T73]      addrconf_add_dev+0xe2/0x170
[ 3308.127970][   T73]      inet6_addr_add+0x12f/0xa40
[ 3308.127970][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3308.127970][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3308.127970][   T73]      netlink_rcv_skb+0x130/0x360
[ 3308.127970][   T73]      netlink_unicast+0x449/0x710
[ 3308.127970][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3308.127970][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3308.127970][   T73]      ___sys_sendmsg+0xee/0x170
[ 3308.127970][   T73]      __sys_sendmsg+0xcd/0x170
[ 3308.127970][   T73]      do_syscall_64+0xc6/0x1e0
[ 3308.127970][   T73] 
[ 3308.129982][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3308.129982][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3308.129982][   T73]      ipv6_find_idev+0x102/0x170
[ 3308.129982][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3308.129982][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3308.129982][   T73]      netlink_rcv_skb+0x130/0x360
[ 3308.129982][   T73]      netlink_unicast+0x449/0x710
[ 3308.129982][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3308.129982][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3308.129982][   T73]      ___sys_sendmsg+0xee/0x170
[ 3308.129982][   T73]      __sys_sendmsg+0xcd/0x170
[ 3308.129982][   T73]      do_syscall_64+0xc6/0x1e0
[ 3308.129982][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3308.129982][   T73] 
[ 3308.131546][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3308.131546][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3308.131546][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3308.131546][   T73]      ipv6_find_idev+0x102/0x170
[ 3308.131546][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3308.131546][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3308.131546][   T73]      netlink_rcv_skb+0x130/0x360
[ 3308.131546][   T73]      netlink_unicast+0x449/0x710
[ 3308.131546][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3308.131546][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3308.131546][   T73]      ___sys_sendmsg+0xee/0x170
[ 3308.131546][   T73]      __sys_sendmsg+0xcd/0x170
[ 3308.131546][   T73]      do_syscall_64+0xc6/0x1e0
[ 3308.131546][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3308.131546][   T73] 
[ 3308.133281][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3308.133575][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3308.133575][   T73]      netdev_get_by_index+0x5e/0x80
[ 3308.133575][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3308.133575][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3308.133575][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3308.133575][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3308.133575][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3308.133575][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3308.133575][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3308.133575][   T73]      addrconf_dad_begin+0x310/0x670
[ 3308.133575][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3308.133575][   T73]      process_one_work+0x84d/0x18a0
[ 3308.133575][   T73]      worker_thread+0x587/0xd30
[ 3308.133575][   T73]      kthread+0x28a/0x350
[ 3308.133575][   T73]      ret_from_fork+0x31/0x70
[ 3308.133575][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3308.133575][   T73] 
[ 3308.135523][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3308.135523][   T73]      netdev_get_by_index+0x5e/0x80
[ 3308.135523][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3308.135523][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3308.135523][   T73]      ip6_route_add+0x1c/0x140
[ 3308.135523][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3308.135523][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3308.135523][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3308.135523][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3308.135523][   T73]      netlink_rcv_skb+0x130/0x360
[ 3308.135523][   T73]      netlink_unicast+0x449/0x710
[ 3308.135523][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3308.135523][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3308.135523][   T73]      ___sys_sendmsg+0xee/0x170
[ 3308.135523][   T73]      __sys_sendmsg+0xcd/0x170
[ 3308.135523][   T73]      do_syscall_64+0xc6/0x1e0
[ 3308.135523][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3308.135523][   T73] 
[ 3308.137538][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3308.137538][   T73]      netdev_get_by_index+0x5e/0x80
[ 3308.137538][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3308.137538][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3308.137538][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3308.137538][   T73]      ipv6_add_addr+0x411/0x2000
[ 3308.137538][   T73]      inet6_addr_add+0x30e/0xa40
[ 3308.137538][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3308.137538][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3308.137538][   T73]      netlink_rcv_skb+0x130/0x360
[ 3308.137538][   T73]      netlink_unicast+0x449/0x710
[ 3308.137538][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3308.137538][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3308.137538][   T73]      ___sys_sendmsg+0xee/0x170
[ 3308.137538][   T73]      __sys_sendmsg+0xcd/0x170
[ 3308.137538][   T73]      do_syscall_64+0xc6/0x1e0
[ 3308.137538][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3308.137538][   T73] 
[ 3308.139551][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3308.139551][   T73]      netdev_get_by_index+0x5e/0x80
[ 3308.139551][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3308.139551][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3308.139551][   T73]      ip6_route_add+0x1c/0x140
[ 3308.139551][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3308.139551][   T73]      addrconf_add_dev+0xe2/0x170
[ 3308.139551][   T73]      inet6_addr_add+0x12f/0xa40
[ 3308.139551][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3308.139551][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3308.139551][   T73]      netlink_rcv_skb+0x130/0x360
[ 3308.139551][   T73]      netlink_unicast+0x449/0x710
[ 3308.139551][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3308.139551][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3308.139551][   T73]      ___sys_sendmsg+0xee/0x170
[ 3308.139551][   T73]      __sys_sendmsg+0xcd/0x170
[ 3308.139551][   T73]      do_syscall_64+0xc6/0x1e0
[ 3308.139551][   T73] 
[ 3308.141528][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3308.141528][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3308.141528][   T73]      ipv6_find_idev+0x102/0x170
[ 3308.141528][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3308.141528][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3308.141528][   T73]      netlink_rcv_skb+0x130/0x360
[ 3308.141528][   T73]      netlink_unicast+0x449/0x710
[ 3308.141528][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3308.141528][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3308.141528][   T73]      ___sys_sendmsg+0xee/0x170
[ 3308.141528][   T73]      __sys_sendmsg+0xcd/0x170
[ 3308.141528][   T73]      do_syscall_64+0xc6/0x1e0
[ 3308.141528][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3308.141528][   T73] 
[ 3308.143076][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3308.143076][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3308.143076][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3308.143076][   T73]      ipv6_find_idev+0x102/0x170
[ 3308.143076][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3308.143076][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3308.143076][   T73]      netlink_rcv_skb+0x130/0x360
[ 3308.143076][   T73]      netlink_unicast+0x449/0x710
[ 3308.143076][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3308.143076][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3308.143076][   T73]      ___sys_sendmsg+0xee/0x170
[ 3308.143076][   T73]      __sys_sendmsg+0xcd/0x170
[ 3308.143076][   T73]      do_syscall_64+0xc6/0x1e0
[ 3308.143076][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3308.143076][   T73] 
[ 3308.144770][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3308.145042][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3308.145042][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3308.145042][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3308.145042][   T73]      fib6_nh_init+0xa22/0x1580
[ 3308.145042][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3308.145042][   T73]      ip6_route_add+0x1c/0x140
[ 3308.145042][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3308.145042][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3308.145042][   T73]      netlink_rcv_skb+0x130/0x360
[ 3308.145042][   T73]      netlink_unicast+0x449/0x710
[ 3308.145042][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3308.145042][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3308.145042][   T73]      ___sys_sendmsg+0xee/0x170
[ 3308.145042][   T73]      __sys_sendmsg+0xcd/0x170
[ 3308.145042][   T73]      do_syscall_64+0xc6/0x1e0
[ 3308.145042][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3308.145042][   T73] 
[ 3308.147116][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3308.147116][   T73]      dst_init+0x84/0x4a0
[ 3308.147116][   T73]      dst_alloc+0x97/0x150
[ 3308.147116][   T73]      ip6_dst_alloc+0x23/0x90
[ 3308.147116][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3308.147116][   T73]      ip6_pol_route+0x56f/0x840
[ 3308.147116][   T73]      fib6_rule_lookup+0x456/0x630
[ 3308.147116][   T73]      ip6_route_input+0x59c/0xa50
[ 3308.147116][   T73]      ipv6_rcv+0x397/0x810
[ 3308.147116][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3308.147116][   T73]      process_backlog+0x101/0x620
[ 3308.147116][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3308.147116][   T73]      net_rx_action+0x495/0xbe0
[ 3308.147116][   T73]      __do_softirq+0x1b5/0x7f6
[ 3308.147116][   T73] 
[ 3308.149004][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3308.149004][   T73]      netdev_get_by_index+0x5e/0x80
[ 3308.149004][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3308.149004][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3308.149004][   T73]      ip6_route_add+0x1c/0x140
[ 3308.149004][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3308.149004][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3308.149004][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3308.149004][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3308.149004][   T73]      netlink_rcv_skb+0x130/0x360
[ 3308.149004][   T73]      netlink_unicast+0x449/0x710
[ 3308.149004][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3308.149004][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3308.149004][   T73]      ___sys_sendmsg+0xee/0x170
[ 3308.149004][   T73]      __sys_sendmsg+0xcd/0x170
[ 3308.149004][   T73]      do_syscall_64+0xc6/0x1e0
[ 3308.149004][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3308.149004][   T73] 
[ 3308.151255][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3308.151255][   T73]      netdev_get_by_index+0x5e/0x80
[ 3308.151255][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3308.151255][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3308.151255][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3308.151255][   T73]      ipv6_add_addr+0x411/0x2000
[ 3308.151255][   T73]      inet6_addr_add+0x30e/0xa40
[ 3308.151255][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3308.151255][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3308.151255][   T73]      netlink_rcv_skb+0x130/0x360
[ 3308.151255][   T73]      netlink_unicast+0x449/0x710
[ 3308.151255][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3308.151255][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3308.151255][   T73]      ___sys_sendmsg+0xee/0x170
[ 3308.151255][   T73]      __sys_sendmsg+0xcd/0x170
[ 3308.151255][   T73]      do_syscall_64+0xc6/0x1e0
[ 3308.151255][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3308.151255][   T73] 
[ 3308.153500][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3308.153500][   T73]      netdev_get_by_index+0x5e/0x80
[ 3308.153500][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3308.153500][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3308.153500][   T73]      ip6_route_add+0x1c/0x140
[ 3308.153500][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3308.153500][   T73]      addrconf_add_dev+0xe2/0x170
[ 3308.153500][   T73]      inet6_addr_add+0x12f/0xa40
[ 3308.153500][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3308.153500][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3308.153500][   T73]      netlink_rcv_skb+0x130/0x360
[ 3308.153500][   T73]      netlink_unicast+0x449/0x710
[ 3308.153500][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3308.153500][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3308.153500][   T73]      ___sys_sendmsg+0xee/0x170
[ 3308.153500][   T73]      __sys_sendmsg+0xcd/0x170
[ 3308.153500][   T73]      do_syscall_64+0xc6/0x1e0
[ 3308.153500][   T73] 
[ 3308.155661][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3308.155661][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3308.155661][   T73]      ipv6_find_idev+0x102/0x170
[ 3308.155661][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3308.155661][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3308.155661][   T73]      netlink_rcv_skb+0x130/0x360
[ 3308.155661][   T73]      netlink_unicast+0x449/0x710
[ 3308.155661][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3308.155661][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3308.155661][   T73]      ___sys_sendmsg+0xee/0x170
[ 3308.155661][   T73]      __sys_sendmsg+0xcd/0x170
[ 3308.155661][   T73]      do_syscall_64+0xc6/0x1e0
[ 3308.155661][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3308.155661][   T73] 
[ 3308.157447][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3308.157447][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3308.157447][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3308.157447][   T73]      ipv6_find_idev+0x102/0x170
[ 3308.157447][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3308.157447][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3308.157447][   T73]      netlink_rcv_skb+0x130/0x360
[ 3308.157447][   T73]      netlink_unicast+0x449/0x710
[ 3308.157447][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3308.157447][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3308.157447][   T73]      ___sys_sendmsg+0xee/0x170
[ 3308.157447][   T73]      __sys_sendmsg+0xcd/0x170
[ 3308.157447][   T73]      do_syscall_64+0xc6/0x1e0
[ 3308.157447][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3308.157447][   T73] 
[ 3308.159387][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3308.159662][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3308.159662][   T73]      netdev_get_by_index+0x5e/0x80
[ 3308.159662][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3308.159662][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3308.159662][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3308.159662][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3308.159662][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3308.159662][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3308.159662][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3308.159662][   T73]      addrconf_dad_begin+0x310/0x670
[ 3308.159662][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3308.159662][   T73]      process_one_work+0x84d/0x18a0
[ 3308.159662][   T73]      worker_thread+0x587/0xd30
[ 3308.159662][   T73]      kthread+0x28a/0x350
[ 3308.159662][   T73]      ret_from_fork+0x31/0x70
[ 3308.159662][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3308.159662][   T73] 
[ 3308.161833][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3308.161833][   T73]      netdev_get_by_index+0x5e/0x80
[ 3308.161833][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3308.161833][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3308.161833][   T73]      ip6_route_add+0x1c/0x140
[ 3308.161833][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3308.161833][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3308.161833][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3308.161833][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3308.161833][   T73]      netlink_rcv_skb+0x130/0x360
[ 3308.161833][   T73]      netlink_unicast+0x449/0x710
[ 3308.161833][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3308.161833][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3308.161833][   T73]      ___sys_sendmsg+0xee/0x170
[ 3308.161833][   T73]      __sys_sendmsg+0xcd/0x170
[ 3308.161833][   T73]      do_syscall_64+0xc6/0x1e0
[ 3308.161833][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3308.161833][   T73] 
[ 3308.164083][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3308.164083][   T73]      netdev_get_by_index+0x5e/0x80
[ 3308.164083][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3308.164083][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3308.164083][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3308.164083][   T73]      ipv6_add_addr+0x411/0x2000
[ 3308.164083][   T73]      inet6_addr_add+0x30e/0xa40
[ 3308.164083][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3308.164083][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3308.164083][   T73]      netlink_rcv_skb+0x130/0x360
[ 3308.164083][   T73]      netlink_unicast+0x449/0x710
[ 3308.164083][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3308.164083][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3308.164083][   T73]      ___sys_sendmsg+0xee/0x170
[ 3308.164083][   T73]      __sys_sendmsg+0xcd/0x170
[ 3308.164083][   T73]      do_syscall_64+0xc6/0x1e0
[ 3308.164083][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3308.164083][   T73] 
[ 3308.166268][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3308.166268][   T73]      netdev_get_by_index+0x5e/0x80
[ 3308.166268][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3308.166268][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3308.166268][   T73]      ip6_route_add+0x1c/0x140
[ 3308.166268][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3308.166268][   T73]      addrconf_add_dev+0xe2/0x170
[ 3308.166268][   T73]      inet6_addr_add+0x12f/0xa40
[ 3308.166268][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3308.166268][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3308.166268][   T73]      netlink_rcv_skb+0x130/0x360
[ 3308.166268][   T73]      netlink_unicast+0x449/0x710
[ 3308.166268][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3308.166268][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3308.166268][   T73]      ___sys_sendmsg+0xee/0x170
[ 3308.166268][   T73]      __sys_sendmsg+0xcd/0x170
[ 3308.166268][   T73]      do_syscall_64+0xc6/0x1e0
[ 3308.166268][   T73] 
[ 3308.168549][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3308.168549][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3308.168549][   T73]      ipv6_find_idev+0x102/0x170
[ 3308.168549][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3308.168549][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3308.168549][   T73]      netlink_rcv_skb+0x130/0x360
[ 3308.168549][   T73]      netlink_unicast+0x449/0x710
[ 3308.168549][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3308.168549][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3308.168549][   T73]      ___sys_sendmsg+0xee/0x170
[ 3308.168549][   T73]      __sys_sendmsg+0xcd/0x170
[ 3308.168549][   T73]      do_syscall_64+0xc6/0x1e0
[ 3308.168549][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3308.168549][   T73] 
[ 3308.170280][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3308.170280][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3308.170280][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3308.170280][   T73]      ipv6_find_idev+0x102/0x170
[ 3308.170280][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3308.170280][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3308.170280][   T73]      netlink_rcv_skb+0x130/0x360
[ 3308.170280][   T73]      netlink_unicast+0x449/0x710
[ 3308.170280][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3308.170280][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3308.170280][   T73]      ___sys_sendmsg+0xee/0x170
[ 3308.170280][   T73]      __sys_sendmsg+0xcd/0x170
[ 3308.170280][   T73]      do_syscall_64+0xc6/0x1e0
[ 3308.170280][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3308.170280][   T73] 
[ 3318.263870][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3318.264393][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3318.264393][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3318.264393][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3318.264393][   T73]      fib6_nh_init+0xa22/0x1580
[ 3318.264393][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3318.264393][   T73]      ip6_route_add+0x1c/0x140
[ 3318.264393][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3318.264393][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3318.264393][   T73]      netlink_rcv_skb+0x130/0x360
[ 3318.264393][   T73]      netlink_unicast+0x449/0x710
[ 3318.264393][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3318.264393][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3318.264393][   T73]      ___sys_sendmsg+0xee/0x170
[ 3318.264393][   T73]      __sys_sendmsg+0xcd/0x170
[ 3318.264393][   T73]      do_syscall_64+0xc6/0x1e0
[ 3318.264393][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3318.264393][   T73] 
[ 3318.266287][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3318.266287][   T73]      dst_init+0x84/0x4a0
[ 3318.266287][   T73]      dst_alloc+0x97/0x150
[ 3318.266287][   T73]      ip6_dst_alloc+0x23/0x90
[ 3318.266287][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3318.266287][   T73]      ip6_pol_route+0x56f/0x840
[ 3318.266287][   T73]      fib6_rule_lookup+0x456/0x630
[ 3318.266287][   T73]      ip6_route_input+0x59c/0xa50
[ 3318.266287][   T73]      ipv6_rcv+0x397/0x810
[ 3318.266287][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3318.266287][   T73]      process_backlog+0x101/0x620
[ 3318.266287][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3318.266287][   T73]      net_rx_action+0x495/0xbe0
[ 3318.266287][   T73]      __do_softirq+0x1b5/0x7f6
[ 3318.266287][   T73] 
[ 3318.267924][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3318.267924][   T73]      netdev_get_by_index+0x5e/0x80
[ 3318.267924][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3318.267924][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3318.267924][   T73]      ip6_route_add+0x1c/0x140
[ 3318.267924][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3318.267924][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3318.267924][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3318.267924][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3318.267924][   T73]      netlink_rcv_skb+0x130/0x360
[ 3318.267924][   T73]      netlink_unicast+0x449/0x710
[ 3318.267924][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3318.267924][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3318.267924][   T73]      ___sys_sendmsg+0xee/0x170
[ 3318.267924][   T73]      __sys_sendmsg+0xcd/0x170
[ 3318.267924][   T73]      do_syscall_64+0xc6/0x1e0
[ 3318.267924][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3318.267924][   T73] 
[ 3318.269933][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3318.269933][   T73]      netdev_get_by_index+0x5e/0x80
[ 3318.269933][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3318.269933][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3318.269933][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3318.269933][   T73]      ipv6_add_addr+0x411/0x2000
[ 3318.269933][   T73]      inet6_addr_add+0x30e/0xa40
[ 3318.269933][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3318.269933][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3318.269933][   T73]      netlink_rcv_skb+0x130/0x360
[ 3318.269933][   T73]      netlink_unicast+0x449/0x710
[ 3318.269933][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3318.269933][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3318.269933][   T73]      ___sys_sendmsg+0xee/0x170
[ 3318.269933][   T73]      __sys_sendmsg+0xcd/0x170
[ 3318.269933][   T73]      do_syscall_64+0xc6/0x1e0
[ 3318.269933][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3318.269933][   T73] 
[ 3318.271922][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3318.271922][   T73]      netdev_get_by_index+0x5e/0x80
[ 3318.271922][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3318.271922][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3318.271922][   T73]      ip6_route_add+0x1c/0x140
[ 3318.271922][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3318.271922][   T73]      addrconf_add_dev+0xe2/0x170
[ 3318.271922][   T73]      inet6_addr_add+0x12f/0xa40
[ 3318.271922][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3318.271922][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3318.271922][   T73]      netlink_rcv_skb+0x130/0x360
[ 3318.271922][   T73]      netlink_unicast+0x449/0x710
[ 3318.271922][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3318.271922][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3318.271922][   T73]      ___sys_sendmsg+0xee/0x170
[ 3318.271922][   T73]      __sys_sendmsg+0xcd/0x170
[ 3318.271922][   T73]      do_syscall_64+0xc6/0x1e0
[ 3318.271922][   T73] 
[ 3318.273936][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3318.273936][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3318.273936][   T73]      ipv6_find_idev+0x102/0x170
[ 3318.273936][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3318.273936][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3318.273936][   T73]      netlink_rcv_skb+0x130/0x360
[ 3318.273936][   T73]      netlink_unicast+0x449/0x710
[ 3318.273936][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3318.273936][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3318.273936][   T73]      ___sys_sendmsg+0xee/0x170
[ 3318.273936][   T73]      __sys_sendmsg+0xcd/0x170
[ 3318.273936][   T73]      do_syscall_64+0xc6/0x1e0
[ 3318.273936][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3318.273936][   T73] 
[ 3318.275487][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3318.275487][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3318.275487][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3318.275487][   T73]      ipv6_find_idev+0x102/0x170
[ 3318.275487][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3318.275487][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3318.275487][   T73]      netlink_rcv_skb+0x130/0x360
[ 3318.275487][   T73]      netlink_unicast+0x449/0x710
[ 3318.275487][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3318.275487][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3318.275487][   T73]      ___sys_sendmsg+0xee/0x170
[ 3318.275487][   T73]      __sys_sendmsg+0xcd/0x170
[ 3318.275487][   T73]      do_syscall_64+0xc6/0x1e0
[ 3318.275487][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3318.275487][   T73] 
[ 3318.277198][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3318.277481][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3318.277481][   T73]      netdev_get_by_index+0x5e/0x80
[ 3318.277481][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3318.277481][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3318.277481][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3318.277481][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3318.277481][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3318.277481][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3318.277481][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3318.277481][   T73]      addrconf_dad_begin+0x310/0x670
[ 3318.277481][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3318.277481][   T73]      process_one_work+0x84d/0x18a0
[ 3318.277481][   T73]      worker_thread+0x587/0xd30
[ 3318.277481][   T73]      kthread+0x28a/0x350
[ 3318.277481][   T73]      ret_from_fork+0x31/0x70
[ 3318.277481][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3318.277481][   T73] 
[ 3318.279384][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3318.279384][   T73]      netdev_get_by_index+0x5e/0x80
[ 3318.279384][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3318.279384][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3318.279384][   T73]      ip6_route_add+0x1c/0x140
[ 3318.279384][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3318.279384][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3318.279384][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3318.279384][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3318.279384][   T73]      netlink_rcv_skb+0x130/0x360
[ 3318.279384][   T73]      netlink_unicast+0x449/0x710
[ 3318.279384][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3318.279384][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3318.279384][   T73]      ___sys_sendmsg+0xee/0x170
[ 3318.279384][   T73]      __sys_sendmsg+0xcd/0x170
[ 3318.279384][   T73]      do_syscall_64+0xc6/0x1e0
[ 3318.279384][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3318.279384][   T73] 
[ 3318.281366][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3318.281366][   T73]      netdev_get_by_index+0x5e/0x80
[ 3318.281366][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3318.281366][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3318.281366][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3318.281366][   T73]      ipv6_add_addr+0x411/0x2000
[ 3318.281366][   T73]      inet6_addr_add+0x30e/0xa40
[ 3318.281366][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3318.281366][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3318.281366][   T73]      netlink_rcv_skb+0x130/0x360
[ 3318.281366][   T73]      netlink_unicast+0x449/0x710
[ 3318.281366][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3318.281366][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3318.281366][   T73]      ___sys_sendmsg+0xee/0x170
[ 3318.281366][   T73]      __sys_sendmsg+0xcd/0x170
[ 3318.281366][   T73]      do_syscall_64+0xc6/0x1e0
[ 3318.281366][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3318.281366][   T73] 
[ 3318.283365][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3318.283365][   T73]      netdev_get_by_index+0x5e/0x80
[ 3318.283365][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3318.283365][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3318.283365][   T73]      ip6_route_add+0x1c/0x140
[ 3318.283365][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3318.283365][   T73]      addrconf_add_dev+0xe2/0x170
[ 3318.283365][   T73]      inet6_addr_add+0x12f/0xa40
[ 3318.283365][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3318.283365][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3318.283365][   T73]      netlink_rcv_skb+0x130/0x360
[ 3318.283365][   T73]      netlink_unicast+0x449/0x710
[ 3318.283365][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3318.283365][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3318.283365][   T73]      ___sys_sendmsg+0xee/0x170
[ 3318.283365][   T73]      __sys_sendmsg+0xcd/0x170
[ 3318.283365][   T73]      do_syscall_64+0xc6/0x1e0
[ 3318.283365][   T73] 
[ 3318.285324][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3318.285324][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3318.285324][   T73]      ipv6_find_idev+0x102/0x170
[ 3318.285324][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3318.285324][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3318.285324][   T73]      netlink_rcv_skb+0x130/0x360
[ 3318.285324][   T73]      netlink_unicast+0x449/0x710
[ 3318.285324][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3318.285324][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3318.285324][   T73]      ___sys_sendmsg+0xee/0x170
[ 3318.285324][   T73]      __sys_sendmsg+0xcd/0x170
[ 3318.285324][   T73]      do_syscall_64+0xc6/0x1e0
[ 3318.285324][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3318.285324][   T73] 
[ 3318.286852][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3318.286852][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3318.286852][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3318.286852][   T73]      ipv6_find_idev+0x102/0x170
[ 3318.286852][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3318.286852][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3318.286852][   T73]      netlink_rcv_skb+0x130/0x360
[ 3318.286852][   T73]      netlink_unicast+0x449/0x710
[ 3318.286852][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3318.286852][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3318.286852][   T73]      ___sys_sendmsg+0xee/0x170
[ 3318.286852][   T73]      __sys_sendmsg+0xcd/0x170
[ 3318.286852][   T73]      do_syscall_64+0xc6/0x1e0
[ 3318.286852][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3318.286852][   T73] 
[ 3318.288517][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3318.288799][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3318.288799][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3318.288799][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3318.288799][   T73]      fib6_nh_init+0xa22/0x1580
[ 3318.288799][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3318.288799][   T73]      ip6_route_add+0x1c/0x140
[ 3318.288799][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3318.288799][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3318.288799][   T73]      netlink_rcv_skb+0x130/0x360
[ 3318.288799][   T73]      netlink_unicast+0x449/0x710
[ 3318.288799][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3318.288799][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3318.288799][   T73]      ___sys_sendmsg+0xee/0x170
[ 3318.288799][   T73]      __sys_sendmsg+0xcd/0x170
[ 3318.288799][   T73]      do_syscall_64+0xc6/0x1e0
[ 3318.288799][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3318.288799][   T73] 
[ 3318.290864][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3318.290864][   T73]      dst_init+0x84/0x4a0
[ 3318.290864][   T73]      dst_alloc+0x97/0x150
[ 3318.290864][   T73]      ip6_dst_alloc+0x23/0x90
[ 3318.290864][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3318.290864][   T73]      ip6_pol_route+0x56f/0x840
[ 3318.290864][   T73]      fib6_rule_lookup+0x456/0x630
[ 3318.290864][   T73]      ip6_route_input+0x59c/0xa50
[ 3318.290864][   T73]      ipv6_rcv+0x397/0x810
[ 3318.290864][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3318.290864][   T73]      process_backlog+0x101/0x620
[ 3318.290864][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3318.290864][   T73]      net_rx_action+0x495/0xbe0
[ 3318.290864][   T73]      __do_softirq+0x1b5/0x7f6
[ 3318.290864][   T73] 
[ 3318.292665][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3318.292665][   T73]      netdev_get_by_index+0x5e/0x80
[ 3318.292665][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3318.292665][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3318.292665][   T73]      ip6_route_add+0x1c/0x140
[ 3318.292665][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3318.292665][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3318.292665][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3318.292665][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3318.292665][   T73]      netlink_rcv_skb+0x130/0x360
[ 3318.292665][   T73]      netlink_unicast+0x449/0x710
[ 3318.292665][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3318.292665][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3318.292665][   T73]      ___sys_sendmsg+0xee/0x170
[ 3318.292665][   T73]      __sys_sendmsg+0xcd/0x170
[ 3318.292665][   T73]      do_syscall_64+0xc6/0x1e0
[ 3318.292665][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3318.292665][   T73] 
[ 3318.294887][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3318.294887][   T73]      netdev_get_by_index+0x5e/0x80
[ 3318.294887][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3318.294887][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3318.294887][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3318.294887][   T73]      ipv6_add_addr+0x411/0x2000
[ 3318.294887][   T73]      inet6_addr_add+0x30e/0xa40
[ 3318.294887][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3318.294887][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3318.294887][   T73]      netlink_rcv_skb+0x130/0x360
[ 3318.294887][   T73]      netlink_unicast+0x449/0x710
[ 3318.294887][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3318.294887][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3318.294887][   T73]      ___sys_sendmsg+0xee/0x170
[ 3318.294887][   T73]      __sys_sendmsg+0xcd/0x170
[ 3318.294887][   T73]      do_syscall_64+0xc6/0x1e0
[ 3318.294887][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3318.294887][   T73] 
[ 3318.297173][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3318.297173][   T73]      netdev_get_by_index+0x5e/0x80
[ 3318.297173][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3318.297173][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3318.297173][   T73]      ip6_route_add+0x1c/0x140
[ 3318.297173][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3318.297173][   T73]      addrconf_add_dev+0xe2/0x170
[ 3318.297173][   T73]      inet6_addr_add+0x12f/0xa40
[ 3318.297173][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3318.297173][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3318.297173][   T73]      netlink_rcv_skb+0x130/0x360
[ 3318.297173][   T73]      netlink_unicast+0x449/0x710
[ 3318.297173][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3318.297173][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3318.297173][   T73]      ___sys_sendmsg+0xee/0x170
[ 3318.297173][   T73]      __sys_sendmsg+0xcd/0x170
[ 3318.297173][   T73]      do_syscall_64+0xc6/0x1e0
[ 3318.297173][   T73] 
[ 3318.299320][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3318.299320][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3318.299320][   T73]      ipv6_find_idev+0x102/0x170
[ 3318.299320][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3318.299320][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3318.299320][   T73]      netlink_rcv_skb+0x130/0x360
[ 3318.299320][   T73]      netlink_unicast+0x449/0x710
[ 3318.299320][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3318.299320][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3318.299320][   T73]      ___sys_sendmsg+0xee/0x170
[ 3318.299320][   T73]      __sys_sendmsg+0xcd/0x170
[ 3318.299320][   T73]      do_syscall_64+0xc6/0x1e0
[ 3318.299320][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3318.299320][   T73] 
[ 3318.301029][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3318.301029][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3318.301029][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3318.301029][   T73]      ipv6_find_idev+0x102/0x170
[ 3318.301029][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3318.301029][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3318.301029][   T73]      netlink_rcv_skb+0x130/0x360
[ 3318.301029][   T73]      netlink_unicast+0x449/0x710
[ 3318.301029][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3318.301029][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3318.301029][   T73]      ___sys_sendmsg+0xee/0x170
[ 3318.301029][   T73]      __sys_sendmsg+0xcd/0x170
[ 3318.301029][   T73]      do_syscall_64+0xc6/0x1e0
[ 3318.301029][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3318.301029][   T73] 
[ 3318.302942][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3318.303212][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3318.303212][   T73]      netdev_get_by_index+0x5e/0x80
[ 3318.303212][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3318.303212][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3318.303212][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3318.303212][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3318.303212][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3318.303212][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3318.303212][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3318.303212][   T73]      addrconf_dad_begin+0x310/0x670
[ 3318.303212][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3318.303212][   T73]      process_one_work+0x84d/0x18a0
[ 3318.303212][   T73]      worker_thread+0x587/0xd30
[ 3318.303212][   T73]      kthread+0x28a/0x350
[ 3318.303212][   T73]      ret_from_fork+0x31/0x70
[ 3318.303212][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3318.303212][   T73] 
[ 3318.305350][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3318.305350][   T73]      netdev_get_by_index+0x5e/0x80
[ 3318.305350][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3318.305350][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3318.305350][   T73]      ip6_route_add+0x1c/0x140
[ 3318.305350][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3318.305350][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3318.305350][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3318.305350][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3318.305350][   T73]      netlink_rcv_skb+0x130/0x360
[ 3318.305350][   T73]      netlink_unicast+0x449/0x710
[ 3318.305350][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3318.305350][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3318.305350][   T73]      ___sys_sendmsg+0xee/0x170
[ 3318.305350][   T73]      __sys_sendmsg+0xcd/0x170
[ 3318.305350][   T73]      do_syscall_64+0xc6/0x1e0
[ 3318.305350][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3318.305350][   T73] 
[ 3318.307571][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3318.307571][   T73]      netdev_get_by_index+0x5e/0x80
[ 3318.307571][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3318.307571][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3318.307571][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3318.307571][   T73]      ipv6_add_addr+0x411/0x2000
[ 3318.307571][   T73]      inet6_addr_add+0x30e/0xa40
[ 3318.307571][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3318.307571][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3318.307571][   T73]      netlink_rcv_skb+0x130/0x360
[ 3318.307571][   T73]      netlink_unicast+0x449/0x710
[ 3318.307571][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3318.307571][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3318.307571][   T73]      ___sys_sendmsg+0xee/0x170
[ 3318.307571][   T73]      __sys_sendmsg+0xcd/0x170
[ 3318.307571][   T73]      do_syscall_64+0xc6/0x1e0
[ 3318.307571][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3318.307571][   T73] 
[ 3318.309897][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3318.309897][   T73]      netdev_get_by_index+0x5e/0x80
[ 3318.309897][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3318.309897][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3318.309897][   T73]      ip6_route_add+0x1c/0x140
[ 3318.309897][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3318.309897][   T73]      addrconf_add_dev+0xe2/0x170
[ 3318.309897][   T73]      inet6_addr_add+0x12f/0xa40
[ 3318.309897][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3318.309897][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3318.309897][   T73]      netlink_rcv_skb+0x130/0x360
[ 3318.309897][   T73]      netlink_unicast+0x449/0x710
[ 3318.309897][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3318.309897][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3318.309897][   T73]      ___sys_sendmsg+0xee/0x170
[ 3318.309897][   T73]      __sys_sendmsg+0xcd/0x170
[ 3318.309897][   T73]      do_syscall_64+0xc6/0x1e0
[ 3318.309897][   T73] 
[ 3318.312257][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3318.312257][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3318.312257][   T73]      ipv6_find_idev+0x102/0x170
[ 3318.312257][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3318.312257][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3318.312257][   T73]      netlink_rcv_skb+0x130/0x360
[ 3318.312257][   T73]      netlink_unicast+0x449/0x710
[ 3318.312257][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3318.312257][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3318.312257][   T73]      ___sys_sendmsg+0xee/0x170
[ 3318.312257][   T73]      __sys_sendmsg+0xcd/0x170
[ 3318.312257][   T73]      do_syscall_64+0xc6/0x1e0
[ 3318.312257][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3318.312257][   T73] 
[ 3318.314125][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3318.314125][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3318.314125][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3318.314125][   T73]      ipv6_find_idev+0x102/0x170
[ 3318.314125][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3318.314125][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3318.314125][   T73]      netlink_rcv_skb+0x130/0x360
[ 3318.314125][   T73]      netlink_unicast+0x449/0x710
[ 3318.314125][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3318.314125][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3318.314125][   T73]      ___sys_sendmsg+0xee/0x170
[ 3318.314125][   T73]      __sys_sendmsg+0xcd/0x170
[ 3318.314125][   T73]      do_syscall_64+0xc6/0x1e0
[ 3318.314125][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3318.314125][   T73] 
[ 3328.551799][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3328.552223][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3328.552223][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3328.552223][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3328.552223][   T73]      fib6_nh_init+0xa22/0x1580
[ 3328.552223][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3328.552223][   T73]      ip6_route_add+0x1c/0x140
[ 3328.552223][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3328.552223][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3328.552223][   T73]      netlink_rcv_skb+0x130/0x360
[ 3328.552223][   T73]      netlink_unicast+0x449/0x710
[ 3328.552223][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3328.552223][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3328.552223][   T73]      ___sys_sendmsg+0xee/0x170
[ 3328.552223][   T73]      __sys_sendmsg+0xcd/0x170
[ 3328.552223][   T73]      do_syscall_64+0xc6/0x1e0
[ 3328.552223][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3328.552223][   T73] 
[ 3328.554158][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3328.554158][   T73]      dst_init+0x84/0x4a0
[ 3328.554158][   T73]      dst_alloc+0x97/0x150
[ 3328.554158][   T73]      ip6_dst_alloc+0x23/0x90
[ 3328.554158][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3328.554158][   T73]      ip6_pol_route+0x56f/0x840
[ 3328.554158][   T73]      fib6_rule_lookup+0x456/0x630
[ 3328.554158][   T73]      ip6_route_input+0x59c/0xa50
[ 3328.554158][   T73]      ipv6_rcv+0x397/0x810
[ 3328.554158][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3328.554158][   T73]      process_backlog+0x101/0x620
[ 3328.554158][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3328.554158][   T73]      net_rx_action+0x495/0xbe0
[ 3328.554158][   T73]      __do_softirq+0x1b5/0x7f6
[ 3328.554158][   T73] 
[ 3328.555825][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3328.555825][   T73]      netdev_get_by_index+0x5e/0x80
[ 3328.555825][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3328.555825][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3328.555825][   T73]      ip6_route_add+0x1c/0x140
[ 3328.555825][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3328.555825][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3328.555825][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3328.555825][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3328.555825][   T73]      netlink_rcv_skb+0x130/0x360
[ 3328.555825][   T73]      netlink_unicast+0x449/0x710
[ 3328.555825][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3328.555825][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3328.555825][   T73]      ___sys_sendmsg+0xee/0x170
[ 3328.555825][   T73]      __sys_sendmsg+0xcd/0x170
[ 3328.555825][   T73]      do_syscall_64+0xc6/0x1e0
[ 3328.555825][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3328.555825][   T73] 
[ 3328.557960][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3328.557960][   T73]      netdev_get_by_index+0x5e/0x80
[ 3328.557960][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3328.557960][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3328.557960][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3328.557960][   T73]      ipv6_add_addr+0x411/0x2000
[ 3328.557960][   T73]      inet6_addr_add+0x30e/0xa40
[ 3328.557960][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3328.557960][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3328.557960][   T73]      netlink_rcv_skb+0x130/0x360
[ 3328.557960][   T73]      netlink_unicast+0x449/0x710
[ 3328.557960][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3328.557960][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3328.557960][   T73]      ___sys_sendmsg+0xee/0x170
[ 3328.557960][   T73]      __sys_sendmsg+0xcd/0x170
[ 3328.557960][   T73]      do_syscall_64+0xc6/0x1e0
[ 3328.557960][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3328.557960][   T73] 
[ 3328.560194][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3328.560194][   T73]      netdev_get_by_index+0x5e/0x80
[ 3328.560194][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3328.560194][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3328.560194][   T73]      ip6_route_add+0x1c/0x140
[ 3328.560194][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3328.560194][   T73]      addrconf_add_dev+0xe2/0x170
[ 3328.560194][   T73]      inet6_addr_add+0x12f/0xa40
[ 3328.560194][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3328.560194][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3328.560194][   T73]      netlink_rcv_skb+0x130/0x360
[ 3328.560194][   T73]      netlink_unicast+0x449/0x710
[ 3328.560194][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3328.560194][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3328.560194][   T73]      ___sys_sendmsg+0xee/0x170
[ 3328.560194][   T73]      __sys_sendmsg+0xcd/0x170
[ 3328.560194][   T73]      do_syscall_64+0xc6/0x1e0
[ 3328.560194][   T73] 
[ 3328.562182][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3328.562182][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3328.562182][   T73]      ipv6_find_idev+0x102/0x170
[ 3328.562182][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3328.562182][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3328.562182][   T73]      netlink_rcv_skb+0x130/0x360
[ 3328.562182][   T73]      netlink_unicast+0x449/0x710
[ 3328.562182][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3328.562182][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3328.562182][   T73]      ___sys_sendmsg+0xee/0x170
[ 3328.562182][   T73]      __sys_sendmsg+0xcd/0x170
[ 3328.562182][   T73]      do_syscall_64+0xc6/0x1e0
[ 3328.562182][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3328.562182][   T73] 
[ 3328.563734][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3328.563734][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3328.563734][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3328.563734][   T73]      ipv6_find_idev+0x102/0x170
[ 3328.563734][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3328.563734][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3328.563734][   T73]      netlink_rcv_skb+0x130/0x360
[ 3328.563734][   T73]      netlink_unicast+0x449/0x710
[ 3328.563734][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3328.563734][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3328.563734][   T73]      ___sys_sendmsg+0xee/0x170
[ 3328.563734][   T73]      __sys_sendmsg+0xcd/0x170
[ 3328.563734][   T73]      do_syscall_64+0xc6/0x1e0
[ 3328.563734][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3328.563734][   T73] 
[ 3328.565441][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3328.565741][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3328.565741][   T73]      netdev_get_by_index+0x5e/0x80
[ 3328.565741][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3328.565741][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3328.565741][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3328.565741][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3328.565741][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3328.565741][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3328.565741][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3328.565741][   T73]      addrconf_dad_begin+0x310/0x670
[ 3328.565741][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3328.565741][   T73]      process_one_work+0x84d/0x18a0
[ 3328.565741][   T73]      worker_thread+0x587/0xd30
[ 3328.565741][   T73]      kthread+0x28a/0x350
[ 3328.565741][   T73]      ret_from_fork+0x31/0x70
[ 3328.565741][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3328.565741][   T73] 
[ 3328.567669][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3328.567669][   T73]      netdev_get_by_index+0x5e/0x80
[ 3328.567669][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3328.567669][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3328.567669][   T73]      ip6_route_add+0x1c/0x140
[ 3328.567669][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3328.567669][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3328.567669][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3328.567669][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3328.567669][   T73]      netlink_rcv_skb+0x130/0x360
[ 3328.567669][   T73]      netlink_unicast+0x449/0x710
[ 3328.567669][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3328.567669][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3328.567669][   T73]      ___sys_sendmsg+0xee/0x170
[ 3328.567669][   T73]      __sys_sendmsg+0xcd/0x170
[ 3328.567669][   T73]      do_syscall_64+0xc6/0x1e0
[ 3328.567669][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3328.567669][   T73] 
[ 3328.569709][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3328.569709][   T73]      netdev_get_by_index+0x5e/0x80
[ 3328.569709][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3328.569709][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3328.569709][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3328.569709][   T73]      ipv6_add_addr+0x411/0x2000
[ 3328.569709][   T73]      inet6_addr_add+0x30e/0xa40
[ 3328.569709][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3328.569709][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3328.569709][   T73]      netlink_rcv_skb+0x130/0x360
[ 3328.569709][   T73]      netlink_unicast+0x449/0x710
[ 3328.569709][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3328.569709][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3328.569709][   T73]      ___sys_sendmsg+0xee/0x170
[ 3328.569709][   T73]      __sys_sendmsg+0xcd/0x170
[ 3328.569709][   T73]      do_syscall_64+0xc6/0x1e0
[ 3328.569709][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3328.569709][   T73] 
[ 3328.571758][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3328.571758][   T73]      netdev_get_by_index+0x5e/0x80
[ 3328.571758][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3328.571758][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3328.571758][   T73]      ip6_route_add+0x1c/0x140
[ 3328.571758][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3328.571758][   T73]      addrconf_add_dev+0xe2/0x170
[ 3328.571758][   T73]      inet6_addr_add+0x12f/0xa40
[ 3328.571758][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3328.571758][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3328.571758][   T73]      netlink_rcv_skb+0x130/0x360
[ 3328.571758][   T73]      netlink_unicast+0x449/0x710
[ 3328.571758][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3328.571758][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3328.571758][   T73]      ___sys_sendmsg+0xee/0x170
[ 3328.571758][   T73]      __sys_sendmsg+0xcd/0x170
[ 3328.571758][   T73]      do_syscall_64+0xc6/0x1e0
[ 3328.571758][   T73] 
[ 3328.573734][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3328.573734][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3328.573734][   T73]      ipv6_find_idev+0x102/0x170
[ 3328.573734][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3328.573734][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3328.573734][   T73]      netlink_rcv_skb+0x130/0x360
[ 3328.573734][   T73]      netlink_unicast+0x449/0x710
[ 3328.573734][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3328.573734][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3328.573734][   T73]      ___sys_sendmsg+0xee/0x170
[ 3328.573734][   T73]      __sys_sendmsg+0xcd/0x170
[ 3328.573734][   T73]      do_syscall_64+0xc6/0x1e0
[ 3328.573734][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3328.573734][   T73] 
[ 3328.575295][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3328.575295][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3328.575295][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3328.575295][   T73]      ipv6_find_idev+0x102/0x170
[ 3328.575295][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3328.575295][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3328.575295][   T73]      netlink_rcv_skb+0x130/0x360
[ 3328.575295][   T73]      netlink_unicast+0x449/0x710
[ 3328.575295][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3328.575295][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3328.575295][   T73]      ___sys_sendmsg+0xee/0x170
[ 3328.575295][   T73]      __sys_sendmsg+0xcd/0x170
[ 3328.575295][   T73]      do_syscall_64+0xc6/0x1e0
[ 3328.575295][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3328.575295][   T73] 
[ 3328.577008][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3328.577286][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3328.577286][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3328.577286][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3328.577286][   T73]      fib6_nh_init+0xa22/0x1580
[ 3328.577286][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3328.577286][   T73]      ip6_route_add+0x1c/0x140
[ 3328.577286][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3328.577286][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3328.577286][   T73]      netlink_rcv_skb+0x130/0x360
[ 3328.577286][   T73]      netlink_unicast+0x449/0x710
[ 3328.577286][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3328.577286][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3328.577286][   T73]      ___sys_sendmsg+0xee/0x170
[ 3328.577286][   T73]      __sys_sendmsg+0xcd/0x170
[ 3328.577286][   T73]      do_syscall_64+0xc6/0x1e0
[ 3328.577286][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3328.577286][   T73] 
[ 3328.579370][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3328.579370][   T73]      dst_init+0x84/0x4a0
[ 3328.579370][   T73]      dst_alloc+0x97/0x150
[ 3328.579370][   T73]      ip6_dst_alloc+0x23/0x90
[ 3328.579370][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3328.579370][   T73]      ip6_pol_route+0x56f/0x840
[ 3328.579370][   T73]      fib6_rule_lookup+0x456/0x630
[ 3328.579370][   T73]      ip6_route_input+0x59c/0xa50
[ 3328.579370][   T73]      ipv6_rcv+0x397/0x810
[ 3328.579370][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3328.579370][   T73]      process_backlog+0x101/0x620
[ 3328.579370][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3328.579370][   T73]      net_rx_action+0x495/0xbe0
[ 3328.579370][   T73]      __do_softirq+0x1b5/0x7f6
[ 3328.579370][   T73] 
[ 3328.581241][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3328.581241][   T73]      netdev_get_by_index+0x5e/0x80
[ 3328.581241][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3328.581241][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3328.581241][   T73]      ip6_route_add+0x1c/0x140
[ 3328.581241][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3328.581241][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3328.581241][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3328.581241][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3328.581241][   T73]      netlink_rcv_skb+0x130/0x360
[ 3328.581241][   T73]      netlink_unicast+0x449/0x710
[ 3328.581241][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3328.581241][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3328.581241][   T73]      ___sys_sendmsg+0xee/0x170
[ 3328.581241][   T73]      __sys_sendmsg+0xcd/0x170
[ 3328.581241][   T73]      do_syscall_64+0xc6/0x1e0
[ 3328.581241][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3328.581241][   T73] 
[ 3328.583469][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3328.583469][   T73]      netdev_get_by_index+0x5e/0x80
[ 3328.583469][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3328.583469][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3328.583469][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3328.583469][   T73]      ipv6_add_addr+0x411/0x2000
[ 3328.583469][   T73]      inet6_addr_add+0x30e/0xa40
[ 3328.583469][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3328.583469][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3328.583469][   T73]      netlink_rcv_skb+0x130/0x360
[ 3328.583469][   T73]      netlink_unicast+0x449/0x710
[ 3328.583469][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3328.583469][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3328.583469][   T73]      ___sys_sendmsg+0xee/0x170
[ 3328.583469][   T73]      __sys_sendmsg+0xcd/0x170
[ 3328.583469][   T73]      do_syscall_64+0xc6/0x1e0
[ 3328.583469][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3328.583469][   T73] 
[ 3328.585707][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3328.585707][   T73]      netdev_get_by_index+0x5e/0x80
[ 3328.585707][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3328.585707][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3328.585707][   T73]      ip6_route_add+0x1c/0x140
[ 3328.585707][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3328.585707][   T73]      addrconf_add_dev+0xe2/0x170
[ 3328.585707][   T73]      inet6_addr_add+0x12f/0xa40
[ 3328.585707][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3328.585707][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3328.585707][   T73]      netlink_rcv_skb+0x130/0x360
[ 3328.585707][   T73]      netlink_unicast+0x449/0x710
[ 3328.585707][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3328.585707][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3328.585707][   T73]      ___sys_sendmsg+0xee/0x170
[ 3328.585707][   T73]      __sys_sendmsg+0xcd/0x170
[ 3328.585707][   T73]      do_syscall_64+0xc6/0x1e0
[ 3328.585707][   T73] 
[ 3328.587849][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3328.587849][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3328.587849][   T73]      ipv6_find_idev+0x102/0x170
[ 3328.587849][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3328.587849][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3328.587849][   T73]      netlink_rcv_skb+0x130/0x360
[ 3328.587849][   T73]      netlink_unicast+0x449/0x710
[ 3328.587849][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3328.587849][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3328.587849][   T73]      ___sys_sendmsg+0xee/0x170
[ 3328.587849][   T73]      __sys_sendmsg+0xcd/0x170
[ 3328.587849][   T73]      do_syscall_64+0xc6/0x1e0
[ 3328.587849][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3328.587849][   T73] 
[ 3328.589559][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3328.589559][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3328.589559][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3328.589559][   T73]      ipv6_find_idev+0x102/0x170
[ 3328.589559][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3328.589559][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3328.589559][   T73]      netlink_rcv_skb+0x130/0x360
[ 3328.589559][   T73]      netlink_unicast+0x449/0x710
[ 3328.589559][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3328.589559][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3328.589559][   T73]      ___sys_sendmsg+0xee/0x170
[ 3328.589559][   T73]      __sys_sendmsg+0xcd/0x170
[ 3328.589559][   T73]      do_syscall_64+0xc6/0x1e0
[ 3328.589559][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3328.589559][   T73] 
[ 3328.591483][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3328.592199][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3328.592199][   T73]      netdev_get_by_index+0x5e/0x80
[ 3328.592199][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3328.592199][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3328.592199][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3328.592199][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3328.592199][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3328.592199][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3328.592199][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3328.592199][   T73]      addrconf_dad_begin+0x310/0x670
[ 3328.592199][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3328.592199][   T73]      process_one_work+0x84d/0x18a0
[ 3328.592199][   T73]      worker_thread+0x587/0xd30
[ 3328.592199][   T73]      kthread+0x28a/0x350
[ 3328.592199][   T73]      ret_from_fork+0x31/0x70
[ 3328.592199][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3328.592199][   T73] 
[ 3328.594097][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3328.594097][   T73]      netdev_get_by_index+0x5e/0x80
[ 3328.594097][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3328.594097][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3328.594097][   T73]      ip6_route_add+0x1c/0x140
[ 3328.594097][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3328.594097][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3328.594097][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3328.594097][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3328.594097][   T73]      netlink_rcv_skb+0x130/0x360
[ 3328.594097][   T73]      netlink_unicast+0x449/0x710
[ 3328.594097][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3328.594097][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3328.594097][   T73]      ___sys_sendmsg+0xee/0x170
[ 3328.594097][   T73]      __sys_sendmsg+0xcd/0x170
[ 3328.594097][   T73]      do_syscall_64+0xc6/0x1e0
[ 3328.594097][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3328.594097][   T73] 
[ 3328.596210][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3328.596210][   T73]      netdev_get_by_index+0x5e/0x80
[ 3328.596210][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3328.596210][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3328.596210][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3328.596210][   T73]      ipv6_add_addr+0x411/0x2000
[ 3328.596210][   T73]      inet6_addr_add+0x30e/0xa40
[ 3328.596210][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3328.596210][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3328.596210][   T73]      netlink_rcv_skb+0x130/0x360
[ 3328.596210][   T73]      netlink_unicast+0x449/0x710
[ 3328.596210][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3328.596210][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3328.596210][   T73]      ___sys_sendmsg+0xee/0x170
[ 3328.596210][   T73]      __sys_sendmsg+0xcd/0x170
[ 3328.596210][   T73]      do_syscall_64+0xc6/0x1e0
[ 3328.596210][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3328.596210][   T73] 
[ 3328.598448][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3328.598448][   T73]      netdev_get_by_index+0x5e/0x80
[ 3328.598448][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3328.598448][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3328.598448][   T73]      ip6_route_add+0x1c/0x140
[ 3328.598448][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3328.598448][   T73]      addrconf_add_dev+0xe2/0x170
[ 3328.598448][   T73]      inet6_addr_add+0x12f/0xa40
[ 3328.598448][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3328.598448][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3328.598448][   T73]      netlink_rcv_skb+0x130/0x360
[ 3328.598448][   T73]      netlink_unicast+0x449/0x710
[ 3328.598448][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3328.598448][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3328.598448][   T73]      ___sys_sendmsg+0xee/0x170
[ 3328.598448][   T73]      __sys_sendmsg+0xcd/0x170
[ 3328.598448][   T73]      do_syscall_64+0xc6/0x1e0
[ 3328.598448][   T73] 
[ 3328.600588][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3328.600588][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3328.600588][   T73]      ipv6_find_idev+0x102/0x170
[ 3328.600588][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3328.600588][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3328.600588][   T73]      netlink_rcv_skb+0x130/0x360
[ 3328.600588][   T73]      netlink_unicast+0x449/0x710
[ 3328.600588][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3328.600588][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3328.600588][   T73]      ___sys_sendmsg+0xee/0x170
[ 3328.600588][   T73]      __sys_sendmsg+0xcd/0x170
[ 3328.600588][   T73]      do_syscall_64+0xc6/0x1e0
[ 3328.600588][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3328.600588][   T73] 
[ 3328.602374][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3328.602374][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3328.602374][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3328.602374][   T73]      ipv6_find_idev+0x102/0x170
[ 3328.602374][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3328.602374][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3328.602374][   T73]      netlink_rcv_skb+0x130/0x360
[ 3328.602374][   T73]      netlink_unicast+0x449/0x710
[ 3328.602374][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3328.602374][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3328.602374][   T73]      ___sys_sendmsg+0xee/0x170
[ 3328.602374][   T73]      __sys_sendmsg+0xcd/0x170
[ 3328.602374][   T73]      do_syscall_64+0xc6/0x1e0
[ 3328.602374][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3328.602374][   T73] 
[ 3338.615686][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3338.616164][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3338.616164][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3338.616164][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3338.616164][   T73]      fib6_nh_init+0xa22/0x1580
[ 3338.616164][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3338.616164][   T73]      ip6_route_add+0x1c/0x140
[ 3338.616164][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3338.616164][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3338.616164][   T73]      netlink_rcv_skb+0x130/0x360
[ 3338.616164][   T73]      netlink_unicast+0x449/0x710
[ 3338.616164][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3338.616164][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3338.616164][   T73]      ___sys_sendmsg+0xee/0x170
[ 3338.616164][   T73]      __sys_sendmsg+0xcd/0x170
[ 3338.616164][   T73]      do_syscall_64+0xc6/0x1e0
[ 3338.616164][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3338.616164][   T73] 
[ 3338.618058][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3338.618058][   T73]      dst_init+0x84/0x4a0
[ 3338.618058][   T73]      dst_alloc+0x97/0x150
[ 3338.618058][   T73]      ip6_dst_alloc+0x23/0x90
[ 3338.618058][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3338.618058][   T73]      ip6_pol_route+0x56f/0x840
[ 3338.618058][   T73]      fib6_rule_lookup+0x456/0x630
[ 3338.618058][   T73]      ip6_route_input+0x59c/0xa50
[ 3338.618058][   T73]      ipv6_rcv+0x397/0x810
[ 3338.618058][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3338.618058][   T73]      process_backlog+0x101/0x620
[ 3338.618058][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3338.618058][   T73]      net_rx_action+0x495/0xbe0
[ 3338.618058][   T73]      __do_softirq+0x1b5/0x7f6
[ 3338.618058][   T73] 
[ 3338.619696][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3338.619696][   T73]      netdev_get_by_index+0x5e/0x80
[ 3338.619696][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3338.619696][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3338.619696][   T73]      ip6_route_add+0x1c/0x140
[ 3338.619696][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3338.619696][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3338.619696][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3338.619696][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3338.619696][   T73]      netlink_rcv_skb+0x130/0x360
[ 3338.619696][   T73]      netlink_unicast+0x449/0x710
[ 3338.619696][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3338.619696][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3338.619696][   T73]      ___sys_sendmsg+0xee/0x170
[ 3338.619696][   T73]      __sys_sendmsg+0xcd/0x170
[ 3338.619696][   T73]      do_syscall_64+0xc6/0x1e0
[ 3338.619696][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3338.619696][   T73] 
[ 3338.621677][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3338.621677][   T73]      netdev_get_by_index+0x5e/0x80
[ 3338.621677][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3338.621677][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3338.621677][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3338.621677][   T73]      ipv6_add_addr+0x411/0x2000
[ 3338.621677][   T73]      inet6_addr_add+0x30e/0xa40
[ 3338.621677][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3338.621677][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3338.621677][   T73]      netlink_rcv_skb+0x130/0x360
[ 3338.621677][   T73]      netlink_unicast+0x449/0x710
[ 3338.621677][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3338.621677][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3338.621677][   T73]      ___sys_sendmsg+0xee/0x170
[ 3338.621677][   T73]      __sys_sendmsg+0xcd/0x170
[ 3338.621677][   T73]      do_syscall_64+0xc6/0x1e0
[ 3338.621677][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3338.621677][   T73] 
[ 3338.623666][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3338.623666][   T73]      netdev_get_by_index+0x5e/0x80
[ 3338.623666][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3338.623666][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3338.623666][   T73]      ip6_route_add+0x1c/0x140
[ 3338.623666][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3338.623666][   T73]      addrconf_add_dev+0xe2/0x170
[ 3338.623666][   T73]      inet6_addr_add+0x12f/0xa40
[ 3338.623666][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3338.623666][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3338.623666][   T73]      netlink_rcv_skb+0x130/0x360
[ 3338.623666][   T73]      netlink_unicast+0x449/0x710
[ 3338.623666][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3338.623666][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3338.623666][   T73]      ___sys_sendmsg+0xee/0x170
[ 3338.623666][   T73]      __sys_sendmsg+0xcd/0x170
[ 3338.623666][   T73]      do_syscall_64+0xc6/0x1e0
[ 3338.623666][   T73] 
[ 3338.625617][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3338.625617][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3338.625617][   T73]      ipv6_find_idev+0x102/0x170
[ 3338.625617][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3338.625617][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3338.625617][   T73]      netlink_rcv_skb+0x130/0x360
[ 3338.625617][   T73]      netlink_unicast+0x449/0x710
[ 3338.625617][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3338.625617][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3338.625617][   T73]      ___sys_sendmsg+0xee/0x170
[ 3338.625617][   T73]      __sys_sendmsg+0xcd/0x170
[ 3338.625617][   T73]      do_syscall_64+0xc6/0x1e0
[ 3338.625617][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3338.625617][   T73] 
[ 3338.627150][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3338.627150][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3338.627150][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3338.627150][   T73]      ipv6_find_idev+0x102/0x170
[ 3338.627150][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3338.627150][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3338.627150][   T73]      netlink_rcv_skb+0x130/0x360
[ 3338.627150][   T73]      netlink_unicast+0x449/0x710
[ 3338.627150][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3338.627150][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3338.627150][   T73]      ___sys_sendmsg+0xee/0x170
[ 3338.627150][   T73]      __sys_sendmsg+0xcd/0x170
[ 3338.627150][   T73]      do_syscall_64+0xc6/0x1e0
[ 3338.627150][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3338.627150][   T73] 
[ 3338.628832][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3338.629117][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3338.629117][   T73]      netdev_get_by_index+0x5e/0x80
[ 3338.629117][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3338.629117][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3338.629117][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3338.629117][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3338.629117][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3338.629117][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3338.629117][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3338.629117][   T73]      addrconf_dad_begin+0x310/0x670
[ 3338.629117][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3338.629117][   T73]      process_one_work+0x84d/0x18a0
[ 3338.629117][   T73]      worker_thread+0x587/0xd30
[ 3338.629117][   T73]      kthread+0x28a/0x350
[ 3338.629117][   T73]      ret_from_fork+0x31/0x70
[ 3338.629117][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3338.629117][   T73] 
[ 3338.631020][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3338.631020][   T73]      netdev_get_by_index+0x5e/0x80
[ 3338.631020][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3338.631020][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3338.631020][   T73]      ip6_route_add+0x1c/0x140
[ 3338.631020][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3338.631020][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3338.631020][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3338.631020][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3338.631020][   T73]      netlink_rcv_skb+0x130/0x360
[ 3338.631020][   T73]      netlink_unicast+0x449/0x710
[ 3338.631020][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3338.631020][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3338.631020][   T73]      ___sys_sendmsg+0xee/0x170
[ 3338.631020][   T73]      __sys_sendmsg+0xcd/0x170
[ 3338.631020][   T73]      do_syscall_64+0xc6/0x1e0
[ 3338.631020][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3338.631020][   T73] 
[ 3338.632993][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3338.632993][   T73]      netdev_get_by_index+0x5e/0x80
[ 3338.632993][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3338.632993][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3338.632993][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3338.632993][   T73]      ipv6_add_addr+0x411/0x2000
[ 3338.632993][   T73]      inet6_addr_add+0x30e/0xa40
[ 3338.632993][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3338.632993][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3338.632993][   T73]      netlink_rcv_skb+0x130/0x360
[ 3338.632993][   T73]      netlink_unicast+0x449/0x710
[ 3338.632993][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3338.632993][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3338.632993][   T73]      ___sys_sendmsg+0xee/0x170
[ 3338.632993][   T73]      __sys_sendmsg+0xcd/0x170
[ 3338.632993][   T73]      do_syscall_64+0xc6/0x1e0
[ 3338.632993][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3338.632993][   T73] 
[ 3338.634981][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3338.634981][   T73]      netdev_get_by_index+0x5e/0x80
[ 3338.634981][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3338.634981][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3338.634981][   T73]      ip6_route_add+0x1c/0x140
[ 3338.634981][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3338.634981][   T73]      addrconf_add_dev+0xe2/0x170
[ 3338.634981][   T73]      inet6_addr_add+0x12f/0xa40
[ 3338.634981][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3338.634981][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3338.634981][   T73]      netlink_rcv_skb+0x130/0x360
[ 3338.634981][   T73]      netlink_unicast+0x449/0x710
[ 3338.634981][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3338.634981][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3338.634981][   T73]      ___sys_sendmsg+0xee/0x170
[ 3338.634981][   T73]      __sys_sendmsg+0xcd/0x170
[ 3338.634981][   T73]      do_syscall_64+0xc6/0x1e0
[ 3338.634981][   T73] 
[ 3338.636924][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3338.636924][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3338.636924][   T73]      ipv6_find_idev+0x102/0x170
[ 3338.636924][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3338.636924][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3338.636924][   T73]      netlink_rcv_skb+0x130/0x360
[ 3338.636924][   T73]      netlink_unicast+0x449/0x710
[ 3338.636924][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3338.636924][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3338.636924][   T73]      ___sys_sendmsg+0xee/0x170
[ 3338.636924][   T73]      __sys_sendmsg+0xcd/0x170
[ 3338.636924][   T73]      do_syscall_64+0xc6/0x1e0
[ 3338.636924][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3338.636924][   T73] 
[ 3338.638473][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3338.638473][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3338.638473][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3338.638473][   T73]      ipv6_find_idev+0x102/0x170
[ 3338.638473][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3338.638473][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3338.638473][   T73]      netlink_rcv_skb+0x130/0x360
[ 3338.638473][   T73]      netlink_unicast+0x449/0x710
[ 3338.638473][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3338.638473][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3338.638473][   T73]      ___sys_sendmsg+0xee/0x170
[ 3338.638473][   T73]      __sys_sendmsg+0xcd/0x170
[ 3338.638473][   T73]      do_syscall_64+0xc6/0x1e0
[ 3338.638473][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3338.638473][   T73] 
[ 3338.640151][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3338.640433][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3338.640433][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3338.640433][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3338.640433][   T73]      fib6_nh_init+0xa22/0x1580
[ 3338.640433][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3338.640433][   T73]      ip6_route_add+0x1c/0x140
[ 3338.640433][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3338.640433][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3338.640433][   T73]      netlink_rcv_skb+0x130/0x360
[ 3338.640433][   T73]      netlink_unicast+0x449/0x710
[ 3338.640433][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3338.640433][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3338.640433][   T73]      ___sys_sendmsg+0xee/0x170
[ 3338.640433][   T73]      __sys_sendmsg+0xcd/0x170
[ 3338.640433][   T73]      do_syscall_64+0xc6/0x1e0
[ 3338.640433][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3338.640433][   T73] 
[ 3338.642589][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3338.642589][   T73]      dst_init+0x84/0x4a0
[ 3338.642589][   T73]      dst_alloc+0x97/0x150
[ 3338.642589][   T73]      ip6_dst_alloc+0x23/0x90
[ 3338.642589][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3338.642589][   T73]      ip6_pol_route+0x56f/0x840
[ 3338.642589][   T73]      fib6_rule_lookup+0x456/0x630
[ 3338.642589][   T73]      ip6_route_input+0x59c/0xa50
[ 3338.642589][   T73]      ipv6_rcv+0x397/0x810
[ 3338.642589][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3338.642589][   T73]      process_backlog+0x101/0x620
[ 3338.642589][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3338.642589][   T73]      net_rx_action+0x495/0xbe0
[ 3338.642589][   T73]      __do_softirq+0x1b5/0x7f6
[ 3338.642589][   T73] 
[ 3338.644491][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3338.644491][   T73]      netdev_get_by_index+0x5e/0x80
[ 3338.644491][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3338.644491][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3338.644491][   T73]      ip6_route_add+0x1c/0x140
[ 3338.644491][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3338.644491][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3338.644491][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3338.644491][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3338.644491][   T73]      netlink_rcv_skb+0x130/0x360
[ 3338.644491][   T73]      netlink_unicast+0x449/0x710
[ 3338.644491][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3338.644491][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3338.644491][   T73]      ___sys_sendmsg+0xee/0x170
[ 3338.644491][   T73]      __sys_sendmsg+0xcd/0x170
[ 3338.644491][   T73]      do_syscall_64+0xc6/0x1e0
[ 3338.644491][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3338.644491][   T73] 
[ 3338.646792][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3338.646792][   T73]      netdev_get_by_index+0x5e/0x80
[ 3338.646792][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3338.646792][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3338.646792][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3338.646792][   T73]      ipv6_add_addr+0x411/0x2000
[ 3338.646792][   T73]      inet6_addr_add+0x30e/0xa40
[ 3338.646792][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3338.646792][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3338.646792][   T73]      netlink_rcv_skb+0x130/0x360
[ 3338.646792][   T73]      netlink_unicast+0x449/0x710
[ 3338.646792][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3338.646792][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3338.646792][   T73]      ___sys_sendmsg+0xee/0x170
[ 3338.646792][   T73]      __sys_sendmsg+0xcd/0x170
[ 3338.646792][   T73]      do_syscall_64+0xc6/0x1e0
[ 3338.646792][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3338.646792][   T73] 
[ 3338.649102][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3338.649102][   T73]      netdev_get_by_index+0x5e/0x80
[ 3338.649102][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3338.649102][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3338.649102][   T73]      ip6_route_add+0x1c/0x140
[ 3338.649102][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3338.649102][   T73]      addrconf_add_dev+0xe2/0x170
[ 3338.649102][   T73]      inet6_addr_add+0x12f/0xa40
[ 3338.649102][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3338.649102][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3338.649102][   T73]      netlink_rcv_skb+0x130/0x360
[ 3338.649102][   T73]      netlink_unicast+0x449/0x710
[ 3338.649102][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3338.649102][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3338.649102][   T73]      ___sys_sendmsg+0xee/0x170
[ 3338.649102][   T73]      __sys_sendmsg+0xcd/0x170
[ 3338.649102][   T73]      do_syscall_64+0xc6/0x1e0
[ 3338.649102][   T73] 
[ 3338.651352][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3338.651352][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3338.651352][   T73]      ipv6_find_idev+0x102/0x170
[ 3338.651352][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3338.651352][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3338.651352][   T73]      netlink_rcv_skb+0x130/0x360
[ 3338.651352][   T73]      netlink_unicast+0x449/0x710
[ 3338.651352][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3338.651352][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3338.651352][   T73]      ___sys_sendmsg+0xee/0x170
[ 3338.651352][   T73]      __sys_sendmsg+0xcd/0x170
[ 3338.651352][   T73]      do_syscall_64+0xc6/0x1e0
[ 3338.651352][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3338.651352][   T73] 
[ 3338.653139][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3338.653139][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3338.653139][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3338.653139][   T73]      ipv6_find_idev+0x102/0x170
[ 3338.653139][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3338.653139][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3338.653139][   T73]      netlink_rcv_skb+0x130/0x360
[ 3338.653139][   T73]      netlink_unicast+0x449/0x710
[ 3338.653139][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3338.653139][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3338.653139][   T73]      ___sys_sendmsg+0xee/0x170
[ 3338.653139][   T73]      __sys_sendmsg+0xcd/0x170
[ 3338.653139][   T73]      do_syscall_64+0xc6/0x1e0
[ 3338.653139][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3338.653139][   T73] 
[ 3338.655102][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3338.655404][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3338.655404][   T73]      netdev_get_by_index+0x5e/0x80
[ 3338.655404][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3338.655404][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3338.655404][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3338.655404][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3338.655404][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3338.655404][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3338.655404][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3338.655404][   T73]      addrconf_dad_begin+0x310/0x670
[ 3338.655404][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3338.655404][   T73]      process_one_work+0x84d/0x18a0
[ 3338.655404][   T73]      worker_thread+0x587/0xd30
[ 3338.655404][   T73]      kthread+0x28a/0x350
[ 3338.655404][   T73]      ret_from_fork+0x31/0x70
[ 3338.655404][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3338.655404][   T73] 
[ 3338.657611][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3338.657611][   T73]      netdev_get_by_index+0x5e/0x80
[ 3338.657611][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3338.657611][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3338.657611][   T73]      ip6_route_add+0x1c/0x140
[ 3338.657611][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3338.657611][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3338.657611][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3338.657611][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3338.657611][   T73]      netlink_rcv_skb+0x130/0x360
[ 3338.657611][   T73]      netlink_unicast+0x449/0x710
[ 3338.657611][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3338.657611][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3338.657611][   T73]      ___sys_sendmsg+0xee/0x170
[ 3338.657611][   T73]      __sys_sendmsg+0xcd/0x170
[ 3338.657611][   T73]      do_syscall_64+0xc6/0x1e0
[ 3338.657611][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3338.657611][   T73] 
[ 3338.659912][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3338.659912][   T73]      netdev_get_by_index+0x5e/0x80
[ 3338.659912][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3338.659912][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3338.659912][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3338.659912][   T73]      ipv6_add_addr+0x411/0x2000
[ 3338.659912][   T73]      inet6_addr_add+0x30e/0xa40
[ 3338.659912][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3338.659912][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3338.659912][   T73]      netlink_rcv_skb+0x130/0x360
[ 3338.659912][   T73]      netlink_unicast+0x449/0x710
[ 3338.659912][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3338.659912][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3338.659912][   T73]      ___sys_sendmsg+0xee/0x170
[ 3338.659912][   T73]      __sys_sendmsg+0xcd/0x170
[ 3338.659912][   T73]      do_syscall_64+0xc6/0x1e0
[ 3338.659912][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3338.659912][   T73] 
[ 3338.662124][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3338.662124][   T73]      netdev_get_by_index+0x5e/0x80
[ 3338.662124][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3338.662124][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3338.662124][   T73]      ip6_route_add+0x1c/0x140
[ 3338.662124][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3338.662124][   T73]      addrconf_add_dev+0xe2/0x170
[ 3338.662124][   T73]      inet6_addr_add+0x12f/0xa40
[ 3338.662124][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3338.662124][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3338.662124][   T73]      netlink_rcv_skb+0x130/0x360
[ 3338.662124][   T73]      netlink_unicast+0x449/0x710
[ 3338.662124][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3338.662124][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3338.662124][   T73]      ___sys_sendmsg+0xee/0x170
[ 3338.662124][   T73]      __sys_sendmsg+0xcd/0x170
[ 3338.662124][   T73]      do_syscall_64+0xc6/0x1e0
[ 3338.662124][   T73] 
[ 3338.664379][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3338.664379][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3338.664379][   T73]      ipv6_find_idev+0x102/0x170
[ 3338.664379][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3338.664379][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3338.664379][   T73]      netlink_rcv_skb+0x130/0x360
[ 3338.664379][   T73]      netlink_unicast+0x449/0x710
[ 3338.664379][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3338.664379][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3338.664379][   T73]      ___sys_sendmsg+0xee/0x170
[ 3338.664379][   T73]      __sys_sendmsg+0xcd/0x170
[ 3338.664379][   T73]      do_syscall_64+0xc6/0x1e0
[ 3338.664379][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3338.664379][   T73] 
[ 3338.666179][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3338.666179][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3338.666179][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3338.666179][   T73]      ipv6_find_idev+0x102/0x170
[ 3338.666179][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3338.666179][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3338.666179][   T73]      netlink_rcv_skb+0x130/0x360
[ 3338.666179][   T73]      netlink_unicast+0x449/0x710
[ 3338.666179][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3338.666179][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3338.666179][   T73]      ___sys_sendmsg+0xee/0x170
[ 3338.666179][   T73]      __sys_sendmsg+0xcd/0x170
[ 3338.666179][   T73]      do_syscall_64+0xc6/0x1e0
[ 3338.666179][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3338.666179][   T73] 
[ 3348.727702][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3348.728136][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3348.728136][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3348.728136][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3348.728136][   T73]      fib6_nh_init+0xa22/0x1580
[ 3348.728136][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3348.728136][   T73]      ip6_route_add+0x1c/0x140
[ 3348.728136][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3348.728136][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3348.728136][   T73]      netlink_rcv_skb+0x130/0x360
[ 3348.728136][   T73]      netlink_unicast+0x449/0x710
[ 3348.728136][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3348.728136][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3348.728136][   T73]      ___sys_sendmsg+0xee/0x170
[ 3348.728136][   T73]      __sys_sendmsg+0xcd/0x170
[ 3348.728136][   T73]      do_syscall_64+0xc6/0x1e0
[ 3348.728136][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3348.728136][   T73] 
[ 3348.730057][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3348.730057][   T73]      dst_init+0x84/0x4a0
[ 3348.730057][   T73]      dst_alloc+0x97/0x150
[ 3348.730057][   T73]      ip6_dst_alloc+0x23/0x90
[ 3348.730057][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3348.730057][   T73]      ip6_pol_route+0x56f/0x840
[ 3348.730057][   T73]      fib6_rule_lookup+0x456/0x630
[ 3348.730057][   T73]      ip6_route_input+0x59c/0xa50
[ 3348.730057][   T73]      ipv6_rcv+0x397/0x810
[ 3348.730057][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3348.730057][   T73]      process_backlog+0x101/0x620
[ 3348.730057][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3348.730057][   T73]      net_rx_action+0x495/0xbe0
[ 3348.730057][   T73]      __do_softirq+0x1b5/0x7f6
[ 3348.730057][   T73] 
[ 3348.731709][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3348.731709][   T73]      netdev_get_by_index+0x5e/0x80
[ 3348.731709][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3348.731709][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3348.731709][   T73]      ip6_route_add+0x1c/0x140
[ 3348.731709][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3348.731709][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3348.731709][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3348.731709][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3348.731709][   T73]      netlink_rcv_skb+0x130/0x360
[ 3348.731709][   T73]      netlink_unicast+0x449/0x710
[ 3348.731709][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3348.731709][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3348.731709][   T73]      ___sys_sendmsg+0xee/0x170
[ 3348.731709][   T73]      __sys_sendmsg+0xcd/0x170
[ 3348.731709][   T73]      do_syscall_64+0xc6/0x1e0
[ 3348.731709][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3348.731709][   T73] 
[ 3348.733727][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3348.733727][   T73]      netdev_get_by_index+0x5e/0x80
[ 3348.733727][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3348.733727][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3348.733727][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3348.733727][   T73]      ipv6_add_addr+0x411/0x2000
[ 3348.733727][   T73]      inet6_addr_add+0x30e/0xa40
[ 3348.733727][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3348.733727][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3348.733727][   T73]      netlink_rcv_skb+0x130/0x360
[ 3348.733727][   T73]      netlink_unicast+0x449/0x710
[ 3348.733727][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3348.733727][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3348.733727][   T73]      ___sys_sendmsg+0xee/0x170
[ 3348.733727][   T73]      __sys_sendmsg+0xcd/0x170
[ 3348.733727][   T73]      do_syscall_64+0xc6/0x1e0
[ 3348.733727][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3348.733727][   T73] 
[ 3348.735718][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3348.735718][   T73]      netdev_get_by_index+0x5e/0x80
[ 3348.735718][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3348.735718][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3348.735718][   T73]      ip6_route_add+0x1c/0x140
[ 3348.735718][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3348.735718][   T73]      addrconf_add_dev+0xe2/0x170
[ 3348.735718][   T73]      inet6_addr_add+0x12f/0xa40
[ 3348.735718][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3348.735718][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3348.735718][   T73]      netlink_rcv_skb+0x130/0x360
[ 3348.735718][   T73]      netlink_unicast+0x449/0x710
[ 3348.735718][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3348.735718][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3348.735718][   T73]      ___sys_sendmsg+0xee/0x170
[ 3348.735718][   T73]      __sys_sendmsg+0xcd/0x170
[ 3348.735718][   T73]      do_syscall_64+0xc6/0x1e0
[ 3348.735718][   T73] 
[ 3348.737704][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3348.737704][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3348.737704][   T73]      ipv6_find_idev+0x102/0x170
[ 3348.737704][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3348.737704][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3348.737704][   T73]      netlink_rcv_skb+0x130/0x360
[ 3348.737704][   T73]      netlink_unicast+0x449/0x710
[ 3348.737704][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3348.737704][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3348.737704][   T73]      ___sys_sendmsg+0xee/0x170
[ 3348.737704][   T73]      __sys_sendmsg+0xcd/0x170
[ 3348.737704][   T73]      do_syscall_64+0xc6/0x1e0
[ 3348.737704][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3348.737704][   T73] 
[ 3348.739255][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3348.739255][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3348.739255][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3348.739255][   T73]      ipv6_find_idev+0x102/0x170
[ 3348.739255][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3348.739255][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3348.739255][   T73]      netlink_rcv_skb+0x130/0x360
[ 3348.739255][   T73]      netlink_unicast+0x449/0x710
[ 3348.739255][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3348.739255][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3348.739255][   T73]      ___sys_sendmsg+0xee/0x170
[ 3348.739255][   T73]      __sys_sendmsg+0xcd/0x170
[ 3348.739255][   T73]      do_syscall_64+0xc6/0x1e0
[ 3348.739255][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3348.739255][   T73] 
[ 3348.740946][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3348.741225][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3348.741225][   T73]      netdev_get_by_index+0x5e/0x80
[ 3348.741225][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3348.741225][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3348.741225][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3348.741225][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3348.741225][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3348.741225][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3348.741225][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3348.741225][   T73]      addrconf_dad_begin+0x310/0x670
[ 3348.741225][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3348.741225][   T73]      process_one_work+0x84d/0x18a0
[ 3348.741225][   T73]      worker_thread+0x587/0xd30
[ 3348.741225][   T73]      kthread+0x28a/0x350
[ 3348.741225][   T73]      ret_from_fork+0x31/0x70
[ 3348.741225][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3348.741225][   T73] 
[ 3348.743133][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3348.743133][   T73]      netdev_get_by_index+0x5e/0x80
[ 3348.743133][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3348.743133][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3348.743133][   T73]      ip6_route_add+0x1c/0x140
[ 3348.743133][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3348.743133][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3348.743133][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3348.743133][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3348.743133][   T73]      netlink_rcv_skb+0x130/0x360
[ 3348.743133][   T73]      netlink_unicast+0x449/0x710
[ 3348.743133][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3348.743133][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3348.743133][   T73]      ___sys_sendmsg+0xee/0x170
[ 3348.743133][   T73]      __sys_sendmsg+0xcd/0x170
[ 3348.743133][   T73]      do_syscall_64+0xc6/0x1e0
[ 3348.743133][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3348.743133][   T73] 
[ 3348.745137][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3348.745137][   T73]      netdev_get_by_index+0x5e/0x80
[ 3348.745137][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3348.745137][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3348.745137][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3348.745137][   T73]      ipv6_add_addr+0x411/0x2000
[ 3348.745137][   T73]      inet6_addr_add+0x30e/0xa40
[ 3348.745137][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3348.745137][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3348.745137][   T73]      netlink_rcv_skb+0x130/0x360
[ 3348.745137][   T73]      netlink_unicast+0x449/0x710
[ 3348.745137][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3348.745137][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3348.745137][   T73]      ___sys_sendmsg+0xee/0x170
[ 3348.745137][   T73]      __sys_sendmsg+0xcd/0x170
[ 3348.745137][   T73]      do_syscall_64+0xc6/0x1e0
[ 3348.745137][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3348.745137][   T73] 
[ 3348.747127][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3348.747127][   T73]      netdev_get_by_index+0x5e/0x80
[ 3348.747127][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3348.747127][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3348.747127][   T73]      ip6_route_add+0x1c/0x140
[ 3348.747127][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3348.747127][   T73]      addrconf_add_dev+0xe2/0x170
[ 3348.747127][   T73]      inet6_addr_add+0x12f/0xa40
[ 3348.747127][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3348.747127][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3348.747127][   T73]      netlink_rcv_skb+0x130/0x360
[ 3348.747127][   T73]      netlink_unicast+0x449/0x710
[ 3348.747127][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3348.747127][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3348.747127][   T73]      ___sys_sendmsg+0xee/0x170
[ 3348.747127][   T73]      __sys_sendmsg+0xcd/0x170
[ 3348.747127][   T73]      do_syscall_64+0xc6/0x1e0
[ 3348.747127][   T73] 
[ 3348.749083][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3348.749083][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3348.749083][   T73]      ipv6_find_idev+0x102/0x170
[ 3348.749083][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3348.749083][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3348.749083][   T73]      netlink_rcv_skb+0x130/0x360
[ 3348.749083][   T73]      netlink_unicast+0x449/0x710
[ 3348.749083][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3348.749083][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3348.749083][   T73]      ___sys_sendmsg+0xee/0x170
[ 3348.749083][   T73]      __sys_sendmsg+0xcd/0x170
[ 3348.749083][   T73]      do_syscall_64+0xc6/0x1e0
[ 3348.749083][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3348.749083][   T73] 
[ 3348.750650][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3348.750650][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3348.750650][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3348.750650][   T73]      ipv6_find_idev+0x102/0x170
[ 3348.750650][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3348.750650][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3348.750650][   T73]      netlink_rcv_skb+0x130/0x360
[ 3348.750650][   T73]      netlink_unicast+0x449/0x710
[ 3348.750650][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3348.750650][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3348.750650][   T73]      ___sys_sendmsg+0xee/0x170
[ 3348.750650][   T73]      __sys_sendmsg+0xcd/0x170
[ 3348.750650][   T73]      do_syscall_64+0xc6/0x1e0
[ 3348.750650][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3348.750650][   T73] 
[ 3348.752355][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3348.752620][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3348.752620][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3348.752620][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3348.752620][   T73]      fib6_nh_init+0xa22/0x1580
[ 3348.752620][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3348.752620][   T73]      ip6_route_add+0x1c/0x140
[ 3348.752620][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3348.752620][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3348.752620][   T73]      netlink_rcv_skb+0x130/0x360
[ 3348.752620][   T73]      netlink_unicast+0x449/0x710
[ 3348.752620][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3348.752620][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3348.752620][   T73]      ___sys_sendmsg+0xee/0x170
[ 3348.752620][   T73]      __sys_sendmsg+0xcd/0x170
[ 3348.752620][   T73]      do_syscall_64+0xc6/0x1e0
[ 3348.752620][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3348.752620][   T73] 
[ 3348.754627][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3348.754627][   T73]      dst_init+0x84/0x4a0
[ 3348.754627][   T73]      dst_alloc+0x97/0x150
[ 3348.754627][   T73]      ip6_dst_alloc+0x23/0x90
[ 3348.754627][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3348.754627][   T73]      ip6_pol_route+0x56f/0x840
[ 3348.754627][   T73]      fib6_rule_lookup+0x456/0x630
[ 3348.754627][   T73]      ip6_route_input+0x59c/0xa50
[ 3348.754627][   T73]      ipv6_rcv+0x397/0x810
[ 3348.754627][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3348.754627][   T73]      process_backlog+0x101/0x620
[ 3348.754627][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3348.754627][   T73]      net_rx_action+0x495/0xbe0
[ 3348.754627][   T73]      __do_softirq+0x1b5/0x7f6
[ 3348.754627][   T73] 
[ 3348.756336][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3348.756336][   T73]      netdev_get_by_index+0x5e/0x80
[ 3348.756336][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3348.756336][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3348.756336][   T73]      ip6_route_add+0x1c/0x140
[ 3348.756336][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3348.756336][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3348.756336][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3348.756336][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3348.756336][   T73]      netlink_rcv_skb+0x130/0x360
[ 3348.756336][   T73]      netlink_unicast+0x449/0x710
[ 3348.756336][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3348.756336][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3348.756336][   T73]      ___sys_sendmsg+0xee/0x170
[ 3348.756336][   T73]      __sys_sendmsg+0xcd/0x170
[ 3348.756336][   T73]      do_syscall_64+0xc6/0x1e0
[ 3348.756336][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3348.756336][   T73] 
[ 3348.758470][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3348.758470][   T73]      netdev_get_by_index+0x5e/0x80
[ 3348.758470][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3348.758470][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3348.758470][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3348.758470][   T73]      ipv6_add_addr+0x411/0x2000
[ 3348.758470][   T73]      inet6_addr_add+0x30e/0xa40
[ 3348.758470][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3348.758470][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3348.758470][   T73]      netlink_rcv_skb+0x130/0x360
[ 3348.758470][   T73]      netlink_unicast+0x449/0x710
[ 3348.758470][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3348.758470][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3348.758470][   T73]      ___sys_sendmsg+0xee/0x170
[ 3348.758470][   T73]      __sys_sendmsg+0xcd/0x170
[ 3348.758470][   T73]      do_syscall_64+0xc6/0x1e0
[ 3348.758470][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3348.758470][   T73] 
[ 3348.760675][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3348.760675][   T73]      netdev_get_by_index+0x5e/0x80
[ 3348.760675][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3348.760675][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3348.760675][   T73]      ip6_route_add+0x1c/0x140
[ 3348.760675][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3348.760675][   T73]      addrconf_add_dev+0xe2/0x170
[ 3348.760675][   T73]      inet6_addr_add+0x12f/0xa40
[ 3348.760675][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3348.760675][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3348.760675][   T73]      netlink_rcv_skb+0x130/0x360
[ 3348.760675][   T73]      netlink_unicast+0x449/0x710
[ 3348.760675][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3348.760675][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3348.760675][   T73]      ___sys_sendmsg+0xee/0x170
[ 3348.760675][   T73]      __sys_sendmsg+0xcd/0x170
[ 3348.760675][   T73]      do_syscall_64+0xc6/0x1e0
[ 3348.760675][   T73] 
[ 3348.762758][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3348.762758][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3348.762758][   T73]      ipv6_find_idev+0x102/0x170
[ 3348.762758][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3348.762758][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3348.762758][   T73]      netlink_rcv_skb+0x130/0x360
[ 3348.762758][   T73]      netlink_unicast+0x449/0x710
[ 3348.762758][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3348.762758][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3348.762758][   T73]      ___sys_sendmsg+0xee/0x170
[ 3348.762758][   T73]      __sys_sendmsg+0xcd/0x170
[ 3348.762758][   T73]      do_syscall_64+0xc6/0x1e0
[ 3348.762758][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3348.762758][   T73] 
[ 3348.764357][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3348.764357][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3348.764357][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3348.764357][   T73]      ipv6_find_idev+0x102/0x170
[ 3348.764357][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3348.764357][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3348.764357][   T73]      netlink_rcv_skb+0x130/0x360
[ 3348.764357][   T73]      netlink_unicast+0x449/0x710
[ 3348.764357][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3348.764357][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3348.764357][   T73]      ___sys_sendmsg+0xee/0x170
[ 3348.764357][   T73]      __sys_sendmsg+0xcd/0x170
[ 3348.764357][   T73]      do_syscall_64+0xc6/0x1e0
[ 3348.764357][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3348.764357][   T73] 
[ 3348.766197][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3348.766484][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3348.766484][   T73]      netdev_get_by_index+0x5e/0x80
[ 3348.766484][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3348.766484][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3348.766484][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3348.766484][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3348.766484][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3348.766484][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3348.766484][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3348.766484][   T73]      addrconf_dad_begin+0x310/0x670
[ 3348.766484][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3348.766484][   T73]      process_one_work+0x84d/0x18a0
[ 3348.766484][   T73]      worker_thread+0x587/0xd30
[ 3348.766484][   T73]      kthread+0x28a/0x350
[ 3348.766484][   T73]      ret_from_fork+0x31/0x70
[ 3348.766484][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3348.766484][   T73] 
[ 3348.768617][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3348.768617][   T73]      netdev_get_by_index+0x5e/0x80
[ 3348.768617][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3348.768617][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3348.768617][   T73]      ip6_route_add+0x1c/0x140
[ 3348.768617][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3348.768617][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3348.768617][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3348.768617][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3348.768617][   T73]      netlink_rcv_skb+0x130/0x360
[ 3348.768617][   T73]      netlink_unicast+0x449/0x710
[ 3348.768617][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3348.768617][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3348.768617][   T73]      ___sys_sendmsg+0xee/0x170
[ 3348.768617][   T73]      __sys_sendmsg+0xcd/0x170
[ 3348.768617][   T73]      do_syscall_64+0xc6/0x1e0
[ 3348.768617][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3348.768617][   T73] 
[ 3348.770769][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3348.770769][   T73]      netdev_get_by_index+0x5e/0x80
[ 3348.770769][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3348.770769][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3348.770769][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3348.770769][   T73]      ipv6_add_addr+0x411/0x2000
[ 3348.770769][   T73]      inet6_addr_add+0x30e/0xa40
[ 3348.770769][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3348.770769][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3348.770769][   T73]      netlink_rcv_skb+0x130/0x360
[ 3348.770769][   T73]      netlink_unicast+0x449/0x710
[ 3348.770769][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3348.770769][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3348.770769][   T73]      ___sys_sendmsg+0xee/0x170
[ 3348.770769][   T73]      __sys_sendmsg+0xcd/0x170
[ 3348.770769][   T73]      do_syscall_64+0xc6/0x1e0
[ 3348.770769][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3348.770769][   T73] 
[ 3348.772850][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3348.772850][   T73]      netdev_get_by_index+0x5e/0x80
[ 3348.772850][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3348.772850][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3348.772850][   T73]      ip6_route_add+0x1c/0x140
[ 3348.772850][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3348.772850][   T73]      addrconf_add_dev+0xe2/0x170
[ 3348.772850][   T73]      inet6_addr_add+0x12f/0xa40
[ 3348.772850][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3348.772850][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3348.772850][   T73]      netlink_rcv_skb+0x130/0x360
[ 3348.772850][   T73]      netlink_unicast+0x449/0x710
[ 3348.772850][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3348.772850][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3348.772850][   T73]      ___sys_sendmsg+0xee/0x170
[ 3348.772850][   T73]      __sys_sendmsg+0xcd/0x170
[ 3348.772850][   T73]      do_syscall_64+0xc6/0x1e0
[ 3348.772850][   T73] 
[ 3348.774953][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3348.774953][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3348.774953][   T73]      ipv6_find_idev+0x102/0x170
[ 3348.774953][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3348.774953][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3348.774953][   T73]      netlink_rcv_skb+0x130/0x360
[ 3348.774953][   T73]      netlink_unicast+0x449/0x710
[ 3348.774953][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3348.774953][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3348.774953][   T73]      ___sys_sendmsg+0xee/0x170
[ 3348.774953][   T73]      __sys_sendmsg+0xcd/0x170
[ 3348.774953][   T73]      do_syscall_64+0xc6/0x1e0
[ 3348.774953][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3348.774953][   T73] 
[ 3348.776562][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3348.776562][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3348.776562][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3348.776562][   T73]      ipv6_find_idev+0x102/0x170
[ 3348.776562][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3348.776562][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3348.776562][   T73]      netlink_rcv_skb+0x130/0x360
[ 3348.776562][   T73]      netlink_unicast+0x449/0x710
[ 3348.776562][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3348.776562][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3348.776562][   T73]      ___sys_sendmsg+0xee/0x170
[ 3348.776562][   T73]      __sys_sendmsg+0xcd/0x170
[ 3348.776562][   T73]      do_syscall_64+0xc6/0x1e0
[ 3348.776562][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3348.776562][   T73] 
[ 3359.031807][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3359.032267][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3359.032267][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3359.032267][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3359.032267][   T73]      fib6_nh_init+0xa22/0x1580
[ 3359.032267][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3359.032267][   T73]      ip6_route_add+0x1c/0x140
[ 3359.032267][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3359.032267][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3359.032267][   T73]      netlink_rcv_skb+0x130/0x360
[ 3359.032267][   T73]      netlink_unicast+0x449/0x710
[ 3359.032267][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3359.032267][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3359.032267][   T73]      ___sys_sendmsg+0xee/0x170
[ 3359.032267][   T73]      __sys_sendmsg+0xcd/0x170
[ 3359.032267][   T73]      do_syscall_64+0xc6/0x1e0
[ 3359.032267][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3359.032267][   T73] 
[ 3359.034182][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3359.034182][   T73]      dst_init+0x84/0x4a0
[ 3359.034182][   T73]      dst_alloc+0x97/0x150
[ 3359.034182][   T73]      ip6_dst_alloc+0x23/0x90
[ 3359.034182][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3359.034182][   T73]      ip6_pol_route+0x56f/0x840
[ 3359.034182][   T73]      fib6_rule_lookup+0x456/0x630
[ 3359.034182][   T73]      ip6_route_input+0x59c/0xa50
[ 3359.034182][   T73]      ipv6_rcv+0x397/0x810
[ 3359.034182][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3359.034182][   T73]      process_backlog+0x101/0x620
[ 3359.034182][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3359.034182][   T73]      net_rx_action+0x495/0xbe0
[ 3359.034182][   T73]      __do_softirq+0x1b5/0x7f6
[ 3359.034182][   T73] 
[ 3359.035826][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3359.035826][   T73]      netdev_get_by_index+0x5e/0x80
[ 3359.035826][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3359.035826][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3359.035826][   T73]      ip6_route_add+0x1c/0x140
[ 3359.035826][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3359.035826][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3359.035826][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3359.035826][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3359.035826][   T73]      netlink_rcv_skb+0x130/0x360
[ 3359.035826][   T73]      netlink_unicast+0x449/0x710
[ 3359.035826][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3359.035826][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3359.035826][   T73]      ___sys_sendmsg+0xee/0x170
[ 3359.035826][   T73]      __sys_sendmsg+0xcd/0x170
[ 3359.035826][   T73]      do_syscall_64+0xc6/0x1e0
[ 3359.035826][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3359.035826][   T73] 
[ 3359.037850][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3359.037850][   T73]      netdev_get_by_index+0x5e/0x80
[ 3359.037850][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3359.037850][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3359.037850][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3359.037850][   T73]      ipv6_add_addr+0x411/0x2000
[ 3359.037850][   T73]      inet6_addr_add+0x30e/0xa40
[ 3359.037850][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3359.037850][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3359.037850][   T73]      netlink_rcv_skb+0x130/0x360
[ 3359.037850][   T73]      netlink_unicast+0x449/0x710
[ 3359.037850][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3359.037850][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3359.037850][   T73]      ___sys_sendmsg+0xee/0x170
[ 3359.037850][   T73]      __sys_sendmsg+0xcd/0x170
[ 3359.037850][   T73]      do_syscall_64+0xc6/0x1e0
[ 3359.037850][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3359.037850][   T73] 
[ 3359.039861][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3359.039861][   T73]      netdev_get_by_index+0x5e/0x80
[ 3359.039861][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3359.039861][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3359.039861][   T73]      ip6_route_add+0x1c/0x140
[ 3359.039861][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3359.039861][   T73]      addrconf_add_dev+0xe2/0x170
[ 3359.039861][   T73]      inet6_addr_add+0x12f/0xa40
[ 3359.039861][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3359.039861][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3359.039861][   T73]      netlink_rcv_skb+0x130/0x360
[ 3359.039861][   T73]      netlink_unicast+0x449/0x710
[ 3359.039861][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3359.039861][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3359.039861][   T73]      ___sys_sendmsg+0xee/0x170
[ 3359.039861][   T73]      __sys_sendmsg+0xcd/0x170
[ 3359.039861][   T73]      do_syscall_64+0xc6/0x1e0
[ 3359.039861][   T73] 
[ 3359.041840][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3359.041840][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3359.041840][   T73]      ipv6_find_idev+0x102/0x170
[ 3359.041840][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3359.041840][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3359.041840][   T73]      netlink_rcv_skb+0x130/0x360
[ 3359.041840][   T73]      netlink_unicast+0x449/0x710
[ 3359.041840][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3359.041840][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3359.041840][   T73]      ___sys_sendmsg+0xee/0x170
[ 3359.041840][   T73]      __sys_sendmsg+0xcd/0x170
[ 3359.041840][   T73]      do_syscall_64+0xc6/0x1e0
[ 3359.041840][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3359.041840][   T73] 
[ 3359.043386][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3359.043386][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3359.043386][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3359.043386][   T73]      ipv6_find_idev+0x102/0x170
[ 3359.043386][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3359.043386][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3359.043386][   T73]      netlink_rcv_skb+0x130/0x360
[ 3359.043386][   T73]      netlink_unicast+0x449/0x710
[ 3359.043386][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3359.043386][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3359.043386][   T73]      ___sys_sendmsg+0xee/0x170
[ 3359.043386][   T73]      __sys_sendmsg+0xcd/0x170
[ 3359.043386][   T73]      do_syscall_64+0xc6/0x1e0
[ 3359.043386][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3359.043386][   T73] 
[ 3359.045090][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3359.045371][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3359.045371][   T73]      netdev_get_by_index+0x5e/0x80
[ 3359.045371][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3359.045371][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3359.045371][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3359.045371][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3359.045371][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3359.045371][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3359.045371][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3359.045371][   T73]      addrconf_dad_begin+0x310/0x670
[ 3359.045371][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3359.045371][   T73]      process_one_work+0x84d/0x18a0
[ 3359.045371][   T73]      worker_thread+0x587/0xd30
[ 3359.045371][   T73]      kthread+0x28a/0x350
[ 3359.045371][   T73]      ret_from_fork+0x31/0x70
[ 3359.045371][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3359.045371][   T73] 
[ 3359.047307][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3359.047307][   T73]      netdev_get_by_index+0x5e/0x80
[ 3359.047307][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3359.047307][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3359.047307][   T73]      ip6_route_add+0x1c/0x140
[ 3359.047307][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3359.047307][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3359.047307][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3359.047307][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3359.047307][   T73]      netlink_rcv_skb+0x130/0x360
[ 3359.047307][   T73]      netlink_unicast+0x449/0x710
[ 3359.047307][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3359.047307][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3359.047307][   T73]      ___sys_sendmsg+0xee/0x170
[ 3359.047307][   T73]      __sys_sendmsg+0xcd/0x170
[ 3359.047307][   T73]      do_syscall_64+0xc6/0x1e0
[ 3359.047307][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3359.047307][   T73] 
[ 3359.049331][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3359.049331][   T73]      netdev_get_by_index+0x5e/0x80
[ 3359.049331][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3359.049331][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3359.049331][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3359.049331][   T73]      ipv6_add_addr+0x411/0x2000
[ 3359.049331][   T73]      inet6_addr_add+0x30e/0xa40
[ 3359.049331][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3359.049331][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3359.049331][   T73]      netlink_rcv_skb+0x130/0x360
[ 3359.049331][   T73]      netlink_unicast+0x449/0x710
[ 3359.049331][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3359.049331][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3359.049331][   T73]      ___sys_sendmsg+0xee/0x170
[ 3359.049331][   T73]      __sys_sendmsg+0xcd/0x170
[ 3359.049331][   T73]      do_syscall_64+0xc6/0x1e0
[ 3359.049331][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3359.049331][   T73] 
[ 3359.051328][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3359.051328][   T73]      netdev_get_by_index+0x5e/0x80
[ 3359.051328][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3359.051328][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3359.051328][   T73]      ip6_route_add+0x1c/0x140
[ 3359.051328][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3359.051328][   T73]      addrconf_add_dev+0xe2/0x170
[ 3359.051328][   T73]      inet6_addr_add+0x12f/0xa40
[ 3359.051328][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3359.051328][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3359.051328][   T73]      netlink_rcv_skb+0x130/0x360
[ 3359.051328][   T73]      netlink_unicast+0x449/0x710
[ 3359.051328][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3359.051328][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3359.051328][   T73]      ___sys_sendmsg+0xee/0x170
[ 3359.051328][   T73]      __sys_sendmsg+0xcd/0x170
[ 3359.051328][   T73]      do_syscall_64+0xc6/0x1e0
[ 3359.051328][   T73] 
[ 3359.053319][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3359.053319][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3359.053319][   T73]      ipv6_find_idev+0x102/0x170
[ 3359.053319][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3359.053319][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3359.053319][   T73]      netlink_rcv_skb+0x130/0x360
[ 3359.053319][   T73]      netlink_unicast+0x449/0x710
[ 3359.053319][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3359.053319][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3359.053319][   T73]      ___sys_sendmsg+0xee/0x170
[ 3359.053319][   T73]      __sys_sendmsg+0xcd/0x170
[ 3359.053319][   T73]      do_syscall_64+0xc6/0x1e0
[ 3359.053319][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3359.053319][   T73] 
[ 3359.054867][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3359.054867][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3359.054867][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3359.054867][   T73]      ipv6_find_idev+0x102/0x170
[ 3359.054867][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3359.054867][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3359.054867][   T73]      netlink_rcv_skb+0x130/0x360
[ 3359.054867][   T73]      netlink_unicast+0x449/0x710
[ 3359.054867][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3359.054867][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3359.054867][   T73]      ___sys_sendmsg+0xee/0x170
[ 3359.054867][   T73]      __sys_sendmsg+0xcd/0x170
[ 3359.054867][   T73]      do_syscall_64+0xc6/0x1e0
[ 3359.054867][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3359.054867][   T73] 
[ 3359.056572][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3359.056849][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3359.056849][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3359.056849][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3359.056849][   T73]      fib6_nh_init+0xa22/0x1580
[ 3359.056849][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3359.056849][   T73]      ip6_route_add+0x1c/0x140
[ 3359.056849][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3359.056849][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3359.056849][   T73]      netlink_rcv_skb+0x130/0x360
[ 3359.056849][   T73]      netlink_unicast+0x449/0x710
[ 3359.056849][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3359.056849][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3359.056849][   T73]      ___sys_sendmsg+0xee/0x170
[ 3359.056849][   T73]      __sys_sendmsg+0xcd/0x170
[ 3359.056849][   T73]      do_syscall_64+0xc6/0x1e0
[ 3359.056849][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3359.056849][   T73] 
[ 3359.058868][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3359.058868][   T73]      dst_init+0x84/0x4a0
[ 3359.058868][   T73]      dst_alloc+0x97/0x150
[ 3359.058868][   T73]      ip6_dst_alloc+0x23/0x90
[ 3359.058868][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3359.058868][   T73]      ip6_pol_route+0x56f/0x840
[ 3359.058868][   T73]      fib6_rule_lookup+0x456/0x630
[ 3359.058868][   T73]      ip6_route_input+0x59c/0xa50
[ 3359.058868][   T73]      ipv6_rcv+0x397/0x810
[ 3359.058868][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3359.058868][   T73]      process_backlog+0x101/0x620
[ 3359.058868][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3359.058868][   T73]      net_rx_action+0x495/0xbe0
[ 3359.058868][   T73]      __do_softirq+0x1b5/0x7f6
[ 3359.058868][   T73] 
[ 3359.060759][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3359.060759][   T73]      netdev_get_by_index+0x5e/0x80
[ 3359.060759][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3359.060759][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3359.060759][   T73]      ip6_route_add+0x1c/0x140
[ 3359.060759][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3359.060759][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3359.060759][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3359.060759][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3359.060759][   T73]      netlink_rcv_skb+0x130/0x360
[ 3359.060759][   T73]      netlink_unicast+0x449/0x710
[ 3359.060759][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3359.060759][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3359.060759][   T73]      ___sys_sendmsg+0xee/0x170
[ 3359.060759][   T73]      __sys_sendmsg+0xcd/0x170
[ 3359.060759][   T73]      do_syscall_64+0xc6/0x1e0
[ 3359.060759][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3359.060759][   T73] 
[ 3359.063009][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3359.063009][   T73]      netdev_get_by_index+0x5e/0x80
[ 3359.063009][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3359.063009][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3359.063009][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3359.063009][   T73]      ipv6_add_addr+0x411/0x2000
[ 3359.063009][   T73]      inet6_addr_add+0x30e/0xa40
[ 3359.063009][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3359.063009][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3359.063009][   T73]      netlink_rcv_skb+0x130/0x360
[ 3359.063009][   T73]      netlink_unicast+0x449/0x710
[ 3359.063009][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3359.063009][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3359.063009][   T73]      ___sys_sendmsg+0xee/0x170
[ 3359.063009][   T73]      __sys_sendmsg+0xcd/0x170
[ 3359.063009][   T73]      do_syscall_64+0xc6/0x1e0
[ 3359.063009][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3359.063009][   T73] 
[ 3359.065280][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3359.065280][   T73]      netdev_get_by_index+0x5e/0x80
[ 3359.065280][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3359.065280][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3359.065280][   T73]      ip6_route_add+0x1c/0x140
[ 3359.065280][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3359.065280][   T73]      addrconf_add_dev+0xe2/0x170
[ 3359.065280][   T73]      inet6_addr_add+0x12f/0xa40
[ 3359.065280][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3359.065280][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3359.065280][   T73]      netlink_rcv_skb+0x130/0x360
[ 3359.065280][   T73]      netlink_unicast+0x449/0x710
[ 3359.065280][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3359.065280][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3359.065280][   T73]      ___sys_sendmsg+0xee/0x170
[ 3359.065280][   T73]      __sys_sendmsg+0xcd/0x170
[ 3359.065280][   T73]      do_syscall_64+0xc6/0x1e0
[ 3359.065280][   T73] 
[ 3359.067441][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3359.067441][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3359.067441][   T73]      ipv6_find_idev+0x102/0x170
[ 3359.067441][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3359.067441][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3359.067441][   T73]      netlink_rcv_skb+0x130/0x360
[ 3359.067441][   T73]      netlink_unicast+0x449/0x710
[ 3359.067441][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3359.067441][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3359.067441][   T73]      ___sys_sendmsg+0xee/0x170
[ 3359.067441][   T73]      __sys_sendmsg+0xcd/0x170
[ 3359.067441][   T73]      do_syscall_64+0xc6/0x1e0
[ 3359.067441][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3359.067441][   T73] 
[ 3359.069162][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3359.069162][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3359.069162][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3359.069162][   T73]      ipv6_find_idev+0x102/0x170
[ 3359.069162][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3359.069162][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3359.069162][   T73]      netlink_rcv_skb+0x130/0x360
[ 3359.069162][   T73]      netlink_unicast+0x449/0x710
[ 3359.069162][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3359.069162][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3359.069162][   T73]      ___sys_sendmsg+0xee/0x170
[ 3359.069162][   T73]      __sys_sendmsg+0xcd/0x170
[ 3359.069162][   T73]      do_syscall_64+0xc6/0x1e0
[ 3359.069162][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3359.069162][   T73] 
[ 3359.071088][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3359.071362][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3359.071362][   T73]      netdev_get_by_index+0x5e/0x80
[ 3359.071362][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3359.071362][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3359.071362][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3359.071362][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3359.071362][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3359.071362][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3359.071362][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3359.071362][   T73]      addrconf_dad_begin+0x310/0x670
[ 3359.071362][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3359.071362][   T73]      process_one_work+0x84d/0x18a0
[ 3359.071362][   T73]      worker_thread+0x587/0xd30
[ 3359.071362][   T73]      kthread+0x28a/0x350
[ 3359.071362][   T73]      ret_from_fork+0x31/0x70
[ 3359.071362][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3359.071362][   T73] 
[ 3359.073510][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3359.073510][   T73]      netdev_get_by_index+0x5e/0x80
[ 3359.073510][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3359.073510][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3359.073510][   T73]      ip6_route_add+0x1c/0x140
[ 3359.073510][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3359.073510][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3359.073510][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3359.073510][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3359.073510][   T73]      netlink_rcv_skb+0x130/0x360
[ 3359.073510][   T73]      netlink_unicast+0x449/0x710
[ 3359.073510][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3359.073510][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3359.073510][   T73]      ___sys_sendmsg+0xee/0x170
[ 3359.073510][   T73]      __sys_sendmsg+0xcd/0x170
[ 3359.073510][   T73]      do_syscall_64+0xc6/0x1e0
[ 3359.073510][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3359.073510][   T73] 
[ 3359.075750][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3359.075750][   T73]      netdev_get_by_index+0x5e/0x80
[ 3359.075750][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3359.075750][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3359.075750][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3359.075750][   T73]      ipv6_add_addr+0x411/0x2000
[ 3359.075750][   T73]      inet6_addr_add+0x30e/0xa40
[ 3359.075750][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3359.075750][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3359.075750][   T73]      netlink_rcv_skb+0x130/0x360
[ 3359.075750][   T73]      netlink_unicast+0x449/0x710
[ 3359.075750][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3359.075750][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3359.075750][   T73]      ___sys_sendmsg+0xee/0x170
[ 3359.075750][   T73]      __sys_sendmsg+0xcd/0x170
[ 3359.075750][   T73]      do_syscall_64+0xc6/0x1e0
[ 3359.075750][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3359.075750][   T73] 
[ 3359.077931][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3359.077931][   T73]      netdev_get_by_index+0x5e/0x80
[ 3359.077931][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3359.077931][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3359.077931][   T73]      ip6_route_add+0x1c/0x140
[ 3359.077931][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3359.077931][   T73]      addrconf_add_dev+0xe2/0x170
[ 3359.077931][   T73]      inet6_addr_add+0x12f/0xa40
[ 3359.077931][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3359.077931][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3359.077931][   T73]      netlink_rcv_skb+0x130/0x360
[ 3359.077931][   T73]      netlink_unicast+0x449/0x710
[ 3359.077931][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3359.077931][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3359.077931][   T73]      ___sys_sendmsg+0xee/0x170
[ 3359.077931][   T73]      __sys_sendmsg+0xcd/0x170
[ 3359.077931][   T73]      do_syscall_64+0xc6/0x1e0
[ 3359.077931][   T73] 
[ 3359.080208][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3359.080208][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3359.080208][   T73]      ipv6_find_idev+0x102/0x170
[ 3359.080208][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3359.080208][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3359.080208][   T73]      netlink_rcv_skb+0x130/0x360
[ 3359.080208][   T73]      netlink_unicast+0x449/0x710
[ 3359.080208][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3359.080208][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3359.080208][   T73]      ___sys_sendmsg+0xee/0x170
[ 3359.080208][   T73]      __sys_sendmsg+0xcd/0x170
[ 3359.080208][   T73]      do_syscall_64+0xc6/0x1e0
[ 3359.080208][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3359.080208][   T73] 
[ 3359.081933][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3359.081933][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3359.081933][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3359.081933][   T73]      ipv6_find_idev+0x102/0x170
[ 3359.081933][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3359.081933][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3359.081933][   T73]      netlink_rcv_skb+0x130/0x360
[ 3359.081933][   T73]      netlink_unicast+0x449/0x710
[ 3359.081933][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3359.081933][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3359.081933][   T73]      ___sys_sendmsg+0xee/0x170
[ 3359.081933][   T73]      __sys_sendmsg+0xcd/0x170
[ 3359.081933][   T73]      do_syscall_64+0xc6/0x1e0
[ 3359.081933][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3359.081933][   T73] 
[ 3369.335896][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3369.336381][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3369.336381][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3369.336381][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3369.336381][   T73]      fib6_nh_init+0xa22/0x1580
[ 3369.336381][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3369.336381][   T73]      ip6_route_add+0x1c/0x140
[ 3369.336381][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3369.336381][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3369.336381][   T73]      netlink_rcv_skb+0x130/0x360
[ 3369.336381][   T73]      netlink_unicast+0x449/0x710
[ 3369.336381][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3369.336381][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3369.336381][   T73]      ___sys_sendmsg+0xee/0x170
[ 3369.336381][   T73]      __sys_sendmsg+0xcd/0x170
[ 3369.336381][   T73]      do_syscall_64+0xc6/0x1e0
[ 3369.336381][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3369.336381][   T73] 
[ 3369.338303][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3369.338303][   T73]      dst_init+0x84/0x4a0
[ 3369.338303][   T73]      dst_alloc+0x97/0x150
[ 3369.338303][   T73]      ip6_dst_alloc+0x23/0x90
[ 3369.338303][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3369.338303][   T73]      ip6_pol_route+0x56f/0x840
[ 3369.338303][   T73]      fib6_rule_lookup+0x456/0x630
[ 3369.338303][   T73]      ip6_route_input+0x59c/0xa50
[ 3369.338303][   T73]      ipv6_rcv+0x397/0x810
[ 3369.338303][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3369.338303][   T73]      process_backlog+0x101/0x620
[ 3369.338303][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3369.338303][   T73]      net_rx_action+0x495/0xbe0
[ 3369.338303][   T73]      __do_softirq+0x1b5/0x7f6
[ 3369.338303][   T73] 
[ 3369.339960][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3369.339960][   T73]      netdev_get_by_index+0x5e/0x80
[ 3369.339960][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3369.339960][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3369.339960][   T73]      ip6_route_add+0x1c/0x140
[ 3369.339960][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3369.339960][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3369.339960][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3369.339960][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3369.339960][   T73]      netlink_rcv_skb+0x130/0x360
[ 3369.339960][   T73]      netlink_unicast+0x449/0x710
[ 3369.339960][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3369.339960][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3369.339960][   T73]      ___sys_sendmsg+0xee/0x170
[ 3369.339960][   T73]      __sys_sendmsg+0xcd/0x170
[ 3369.339960][   T73]      do_syscall_64+0xc6/0x1e0
[ 3369.339960][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3369.339960][   T73] 
[ 3369.341962][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3369.341962][   T73]      netdev_get_by_index+0x5e/0x80
[ 3369.341962][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3369.341962][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3369.341962][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3369.341962][   T73]      ipv6_add_addr+0x411/0x2000
[ 3369.341962][   T73]      inet6_addr_add+0x30e/0xa40
[ 3369.341962][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3369.341962][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3369.341962][   T73]      netlink_rcv_skb+0x130/0x360
[ 3369.341962][   T73]      netlink_unicast+0x449/0x710
[ 3369.341962][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3369.341962][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3369.341962][   T73]      ___sys_sendmsg+0xee/0x170
[ 3369.341962][   T73]      __sys_sendmsg+0xcd/0x170
[ 3369.341962][   T73]      do_syscall_64+0xc6/0x1e0
[ 3369.341962][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3369.341962][   T73] 
[ 3369.343956][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3369.343956][   T73]      netdev_get_by_index+0x5e/0x80
[ 3369.343956][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3369.343956][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3369.343956][   T73]      ip6_route_add+0x1c/0x140
[ 3369.343956][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3369.343956][   T73]      addrconf_add_dev+0xe2/0x170
[ 3369.343956][   T73]      inet6_addr_add+0x12f/0xa40
[ 3369.343956][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3369.343956][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3369.343956][   T73]      netlink_rcv_skb+0x130/0x360
[ 3369.343956][   T73]      netlink_unicast+0x449/0x710
[ 3369.343956][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3369.343956][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3369.343956][   T73]      ___sys_sendmsg+0xee/0x170
[ 3369.343956][   T73]      __sys_sendmsg+0xcd/0x170
[ 3369.343956][   T73]      do_syscall_64+0xc6/0x1e0
[ 3369.343956][   T73] 
[ 3369.345938][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3369.345938][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3369.345938][   T73]      ipv6_find_idev+0x102/0x170
[ 3369.345938][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3369.345938][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3369.345938][   T73]      netlink_rcv_skb+0x130/0x360
[ 3369.345938][   T73]      netlink_unicast+0x449/0x710
[ 3369.345938][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3369.345938][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3369.345938][   T73]      ___sys_sendmsg+0xee/0x170
[ 3369.345938][   T73]      __sys_sendmsg+0xcd/0x170
[ 3369.345938][   T73]      do_syscall_64+0xc6/0x1e0
[ 3369.345938][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3369.345938][   T73] 
[ 3369.347476][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3369.347476][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3369.347476][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3369.347476][   T73]      ipv6_find_idev+0x102/0x170
[ 3369.347476][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3369.347476][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3369.347476][   T73]      netlink_rcv_skb+0x130/0x360
[ 3369.347476][   T73]      netlink_unicast+0x449/0x710
[ 3369.347476][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3369.347476][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3369.347476][   T73]      ___sys_sendmsg+0xee/0x170
[ 3369.347476][   T73]      __sys_sendmsg+0xcd/0x170
[ 3369.347476][   T73]      do_syscall_64+0xc6/0x1e0
[ 3369.347476][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3369.347476][   T73] 
[ 3369.349207][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3369.349494][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3369.349494][   T73]      netdev_get_by_index+0x5e/0x80
[ 3369.349494][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3369.349494][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3369.349494][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3369.349494][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3369.349494][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3369.349494][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3369.349494][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3369.349494][   T73]      addrconf_dad_begin+0x310/0x670
[ 3369.349494][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3369.349494][   T73]      process_one_work+0x84d/0x18a0
[ 3369.349494][   T73]      worker_thread+0x587/0xd30
[ 3369.349494][   T73]      kthread+0x28a/0x350
[ 3369.349494][   T73]      ret_from_fork+0x31/0x70
[ 3369.349494][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3369.349494][   T73] 
[ 3369.351394][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3369.351394][   T73]      netdev_get_by_index+0x5e/0x80
[ 3369.351394][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3369.351394][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3369.351394][   T73]      ip6_route_add+0x1c/0x140
[ 3369.351394][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3369.351394][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3369.351394][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3369.351394][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3369.351394][   T73]      netlink_rcv_skb+0x130/0x360
[ 3369.351394][   T73]      netlink_unicast+0x449/0x710
[ 3369.351394][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3369.351394][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3369.351394][   T73]      ___sys_sendmsg+0xee/0x170
[ 3369.351394][   T73]      __sys_sendmsg+0xcd/0x170
[ 3369.351394][   T73]      do_syscall_64+0xc6/0x1e0
[ 3369.351394][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3369.351394][   T73] 
[ 3369.353409][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3369.353409][   T73]      netdev_get_by_index+0x5e/0x80
[ 3369.353409][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3369.353409][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3369.353409][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3369.353409][   T73]      ipv6_add_addr+0x411/0x2000
[ 3369.353409][   T73]      inet6_addr_add+0x30e/0xa40
[ 3369.353409][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3369.353409][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3369.353409][   T73]      netlink_rcv_skb+0x130/0x360
[ 3369.353409][   T73]      netlink_unicast+0x449/0x710
[ 3369.353409][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3369.353409][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3369.353409][   T73]      ___sys_sendmsg+0xee/0x170
[ 3369.353409][   T73]      __sys_sendmsg+0xcd/0x170
[ 3369.353409][   T73]      do_syscall_64+0xc6/0x1e0
[ 3369.353409][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3369.353409][   T73] 
[ 3369.355410][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3369.355410][   T73]      netdev_get_by_index+0x5e/0x80
[ 3369.355410][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3369.355410][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3369.355410][   T73]      ip6_route_add+0x1c/0x140
[ 3369.355410][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3369.355410][   T73]      addrconf_add_dev+0xe2/0x170
[ 3369.355410][   T73]      inet6_addr_add+0x12f/0xa40
[ 3369.355410][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3369.355410][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3369.355410][   T73]      netlink_rcv_skb+0x130/0x360
[ 3369.355410][   T73]      netlink_unicast+0x449/0x710
[ 3369.355410][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3369.355410][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3369.355410][   T73]      ___sys_sendmsg+0xee/0x170
[ 3369.355410][   T73]      __sys_sendmsg+0xcd/0x170
[ 3369.355410][   T73]      do_syscall_64+0xc6/0x1e0
[ 3369.355410][   T73] 
[ 3369.357381][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3369.357381][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3369.357381][   T73]      ipv6_find_idev+0x102/0x170
[ 3369.357381][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3369.357381][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3369.357381][   T73]      netlink_rcv_skb+0x130/0x360
[ 3369.357381][   T73]      netlink_unicast+0x449/0x710
[ 3369.357381][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3369.357381][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3369.357381][   T73]      ___sys_sendmsg+0xee/0x170
[ 3369.357381][   T73]      __sys_sendmsg+0xcd/0x170
[ 3369.357381][   T73]      do_syscall_64+0xc6/0x1e0
[ 3369.357381][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3369.357381][   T73] 
[ 3369.358955][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3369.358955][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3369.358955][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3369.358955][   T73]      ipv6_find_idev+0x102/0x170
[ 3369.358955][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3369.358955][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3369.358955][   T73]      netlink_rcv_skb+0x130/0x360
[ 3369.358955][   T73]      netlink_unicast+0x449/0x710
[ 3369.358955][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3369.358955][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3369.358955][   T73]      ___sys_sendmsg+0xee/0x170
[ 3369.358955][   T73]      __sys_sendmsg+0xcd/0x170
[ 3369.358955][   T73]      do_syscall_64+0xc6/0x1e0
[ 3369.358955][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3369.358955][   T73] 
[ 3369.360655][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3369.360927][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3369.360927][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3369.360927][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3369.360927][   T73]      fib6_nh_init+0xa22/0x1580
[ 3369.360927][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3369.360927][   T73]      ip6_route_add+0x1c/0x140
[ 3369.360927][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3369.360927][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3369.360927][   T73]      netlink_rcv_skb+0x130/0x360
[ 3369.360927][   T73]      netlink_unicast+0x449/0x710
[ 3369.360927][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3369.360927][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3369.360927][   T73]      ___sys_sendmsg+0xee/0x170
[ 3369.360927][   T73]      __sys_sendmsg+0xcd/0x170
[ 3369.360927][   T73]      do_syscall_64+0xc6/0x1e0
[ 3369.360927][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3369.360927][   T73] 
[ 3369.362997][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3369.362997][   T73]      dst_init+0x84/0x4a0
[ 3369.362997][   T73]      dst_alloc+0x97/0x150
[ 3369.362997][   T73]      ip6_dst_alloc+0x23/0x90
[ 3369.362997][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3369.362997][   T73]      ip6_pol_route+0x56f/0x840
[ 3369.362997][   T73]      fib6_rule_lookup+0x456/0x630
[ 3369.362997][   T73]      ip6_route_input+0x59c/0xa50
[ 3369.362997][   T73]      ipv6_rcv+0x397/0x810
[ 3369.362997][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3369.362997][   T73]      process_backlog+0x101/0x620
[ 3369.362997][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3369.362997][   T73]      net_rx_action+0x495/0xbe0
[ 3369.362997][   T73]      __do_softirq+0x1b5/0x7f6
[ 3369.362997][   T73] 
[ 3369.364888][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3369.364888][   T73]      netdev_get_by_index+0x5e/0x80
[ 3369.364888][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3369.364888][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3369.364888][   T73]      ip6_route_add+0x1c/0x140
[ 3369.364888][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3369.364888][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3369.364888][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3369.364888][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3369.364888][   T73]      netlink_rcv_skb+0x130/0x360
[ 3369.364888][   T73]      netlink_unicast+0x449/0x710
[ 3369.364888][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3369.364888][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3369.364888][   T73]      ___sys_sendmsg+0xee/0x170
[ 3369.364888][   T73]      __sys_sendmsg+0xcd/0x170
[ 3369.364888][   T73]      do_syscall_64+0xc6/0x1e0
[ 3369.364888][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3369.364888][   T73] 
[ 3369.367130][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3369.367130][   T73]      netdev_get_by_index+0x5e/0x80
[ 3369.367130][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3369.367130][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3369.367130][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3369.367130][   T73]      ipv6_add_addr+0x411/0x2000
[ 3369.367130][   T73]      inet6_addr_add+0x30e/0xa40
[ 3369.367130][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3369.367130][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3369.367130][   T73]      netlink_rcv_skb+0x130/0x360
[ 3369.367130][   T73]      netlink_unicast+0x449/0x710
[ 3369.367130][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3369.367130][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3369.367130][   T73]      ___sys_sendmsg+0xee/0x170
[ 3369.367130][   T73]      __sys_sendmsg+0xcd/0x170
[ 3369.367130][   T73]      do_syscall_64+0xc6/0x1e0
[ 3369.367130][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3369.367130][   T73] 
[ 3369.369328][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3369.369328][   T73]      netdev_get_by_index+0x5e/0x80
[ 3369.369328][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3369.369328][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3369.369328][   T73]      ip6_route_add+0x1c/0x140
[ 3369.369328][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3369.369328][   T73]      addrconf_add_dev+0xe2/0x170
[ 3369.369328][   T73]      inet6_addr_add+0x12f/0xa40
[ 3369.369328][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3369.369328][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3369.369328][   T73]      netlink_rcv_skb+0x130/0x360
[ 3369.369328][   T73]      netlink_unicast+0x449/0x710
[ 3369.369328][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3369.369328][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3369.369328][   T73]      ___sys_sendmsg+0xee/0x170
[ 3369.369328][   T73]      __sys_sendmsg+0xcd/0x170
[ 3369.369328][   T73]      do_syscall_64+0xc6/0x1e0
[ 3369.369328][   T73] 
[ 3369.371530][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3369.371530][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3369.371530][   T73]      ipv6_find_idev+0x102/0x170
[ 3369.371530][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3369.371530][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3369.371530][   T73]      netlink_rcv_skb+0x130/0x360
[ 3369.371530][   T73]      netlink_unicast+0x449/0x710
[ 3369.371530][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3369.371530][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3369.371530][   T73]      ___sys_sendmsg+0xee/0x170
[ 3369.371530][   T73]      __sys_sendmsg+0xcd/0x170
[ 3369.371530][   T73]      do_syscall_64+0xc6/0x1e0
[ 3369.371530][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3369.371530][   T73] 
[ 3369.373320][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3369.373320][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3369.373320][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3369.373320][   T73]      ipv6_find_idev+0x102/0x170
[ 3369.373320][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3369.373320][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3369.373320][   T73]      netlink_rcv_skb+0x130/0x360
[ 3369.373320][   T73]      netlink_unicast+0x449/0x710
[ 3369.373320][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3369.373320][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3369.373320][   T73]      ___sys_sendmsg+0xee/0x170
[ 3369.373320][   T73]      __sys_sendmsg+0xcd/0x170
[ 3369.373320][   T73]      do_syscall_64+0xc6/0x1e0
[ 3369.373320][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3369.373320][   T73] 
[ 3369.375214][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3369.375550][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3369.375550][   T73]      netdev_get_by_index+0x5e/0x80
[ 3369.375550][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3369.375550][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3369.375550][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3369.375550][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3369.375550][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3369.375550][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3369.375550][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3369.375550][   T73]      addrconf_dad_begin+0x310/0x670
[ 3369.375550][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3369.375550][   T73]      process_one_work+0x84d/0x18a0
[ 3369.375550][   T73]      worker_thread+0x587/0xd30
[ 3369.375550][   T73]      kthread+0x28a/0x350
[ 3369.375550][   T73]      ret_from_fork+0x31/0x70
[ 3369.375550][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3369.375550][   T73] 
[ 3369.377603][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3369.377603][   T73]      netdev_get_by_index+0x5e/0x80
[ 3369.377603][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3369.377603][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3369.377603][   T73]      ip6_route_add+0x1c/0x140
[ 3369.377603][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3369.377603][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3369.377603][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3369.377603][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3369.377603][   T73]      netlink_rcv_skb+0x130/0x360
[ 3369.377603][   T73]      netlink_unicast+0x449/0x710
[ 3369.377603][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3369.377603][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3369.377603][   T73]      ___sys_sendmsg+0xee/0x170
[ 3369.377603][   T73]      __sys_sendmsg+0xcd/0x170
[ 3369.377603][   T73]      do_syscall_64+0xc6/0x1e0
[ 3369.377603][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3369.377603][   T73] 
[ 3369.379895][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3369.379895][   T73]      netdev_get_by_index+0x5e/0x80
[ 3369.379895][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3369.379895][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3369.379895][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3369.379895][   T73]      ipv6_add_addr+0x411/0x2000
[ 3369.379895][   T73]      inet6_addr_add+0x30e/0xa40
[ 3369.379895][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3369.379895][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3369.379895][   T73]      netlink_rcv_skb+0x130/0x360
[ 3369.379895][   T73]      netlink_unicast+0x449/0x710
[ 3369.379895][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3369.379895][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3369.379895][   T73]      ___sys_sendmsg+0xee/0x170
[ 3369.379895][   T73]      __sys_sendmsg+0xcd/0x170
[ 3369.379895][   T73]      do_syscall_64+0xc6/0x1e0
[ 3369.379895][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3369.379895][   T73] 
[ 3369.382190][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3369.382190][   T73]      netdev_get_by_index+0x5e/0x80
[ 3369.382190][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3369.382190][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3369.382190][   T73]      ip6_route_add+0x1c/0x140
[ 3369.382190][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3369.382190][   T73]      addrconf_add_dev+0xe2/0x170
[ 3369.382190][   T73]      inet6_addr_add+0x12f/0xa40
[ 3369.382190][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3369.382190][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3369.382190][   T73]      netlink_rcv_skb+0x130/0x360
[ 3369.382190][   T73]      netlink_unicast+0x449/0x710
[ 3369.382190][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3369.382190][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3369.382190][   T73]      ___sys_sendmsg+0xee/0x170
[ 3369.382190][   T73]      __sys_sendmsg+0xcd/0x170
[ 3369.382190][   T73]      do_syscall_64+0xc6/0x1e0
[ 3369.382190][   T73] 
[ 3369.384464][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3369.384464][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3369.384464][   T73]      ipv6_find_idev+0x102/0x170
[ 3369.384464][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3369.384464][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3369.384464][   T73]      netlink_rcv_skb+0x130/0x360
[ 3369.384464][   T73]      netlink_unicast+0x449/0x710
[ 3369.384464][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3369.384464][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3369.384464][   T73]      ___sys_sendmsg+0xee/0x170
[ 3369.384464][   T73]      __sys_sendmsg+0xcd/0x170
[ 3369.384464][   T73]      do_syscall_64+0xc6/0x1e0
[ 3369.384464][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3369.384464][   T73] 
[ 3369.386195][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3369.386195][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3369.386195][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3369.386195][   T73]      ipv6_find_idev+0x102/0x170
[ 3369.386195][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3369.386195][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3369.386195][   T73]      netlink_rcv_skb+0x130/0x360
[ 3369.386195][   T73]      netlink_unicast+0x449/0x710
[ 3369.386195][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3369.386195][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3369.386195][   T73]      ___sys_sendmsg+0xee/0x170
[ 3369.386195][   T73]      __sys_sendmsg+0xcd/0x170
[ 3369.386195][   T73]      do_syscall_64+0xc6/0x1e0
[ 3369.386195][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3369.386195][   T73] 
[ 3379.639764][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3379.640267][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3379.640267][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3379.640267][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3379.640267][   T73]      fib6_nh_init+0xa22/0x1580
[ 3379.640267][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3379.640267][   T73]      ip6_route_add+0x1c/0x140
[ 3379.640267][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3379.640267][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3379.640267][   T73]      netlink_rcv_skb+0x130/0x360
[ 3379.640267][   T73]      netlink_unicast+0x449/0x710
[ 3379.640267][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3379.640267][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3379.640267][   T73]      ___sys_sendmsg+0xee/0x170
[ 3379.640267][   T73]      __sys_sendmsg+0xcd/0x170
[ 3379.640267][   T73]      do_syscall_64+0xc6/0x1e0
[ 3379.640267][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3379.640267][   T73] 
[ 3379.642188][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3379.642188][   T73]      dst_init+0x84/0x4a0
[ 3379.642188][   T73]      dst_alloc+0x97/0x150
[ 3379.642188][   T73]      ip6_dst_alloc+0x23/0x90
[ 3379.642188][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3379.642188][   T73]      ip6_pol_route+0x56f/0x840
[ 3379.642188][   T73]      fib6_rule_lookup+0x456/0x630
[ 3379.642188][   T73]      ip6_route_input+0x59c/0xa50
[ 3379.642188][   T73]      ipv6_rcv+0x397/0x810
[ 3379.642188][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3379.642188][   T73]      process_backlog+0x101/0x620
[ 3379.642188][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3379.642188][   T73]      net_rx_action+0x495/0xbe0
[ 3379.642188][   T73]      __do_softirq+0x1b5/0x7f6
[ 3379.642188][   T73] 
[ 3379.643847][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3379.643847][   T73]      netdev_get_by_index+0x5e/0x80
[ 3379.643847][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3379.643847][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3379.643847][   T73]      ip6_route_add+0x1c/0x140
[ 3379.643847][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3379.643847][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3379.643847][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3379.643847][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3379.643847][   T73]      netlink_rcv_skb+0x130/0x360
[ 3379.643847][   T73]      netlink_unicast+0x449/0x710
[ 3379.643847][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3379.643847][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3379.643847][   T73]      ___sys_sendmsg+0xee/0x170
[ 3379.643847][   T73]      __sys_sendmsg+0xcd/0x170
[ 3379.643847][   T73]      do_syscall_64+0xc6/0x1e0
[ 3379.643847][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3379.643847][   T73] 
[ 3379.645859][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3379.645859][   T73]      netdev_get_by_index+0x5e/0x80
[ 3379.645859][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3379.645859][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3379.645859][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3379.645859][   T73]      ipv6_add_addr+0x411/0x2000
[ 3379.645859][   T73]      inet6_addr_add+0x30e/0xa40
[ 3379.645859][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3379.645859][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3379.645859][   T73]      netlink_rcv_skb+0x130/0x360
[ 3379.645859][   T73]      netlink_unicast+0x449/0x710
[ 3379.645859][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3379.645859][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3379.645859][   T73]      ___sys_sendmsg+0xee/0x170
[ 3379.645859][   T73]      __sys_sendmsg+0xcd/0x170
[ 3379.645859][   T73]      do_syscall_64+0xc6/0x1e0
[ 3379.645859][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3379.645859][   T73] 
[ 3379.647871][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3379.647871][   T73]      netdev_get_by_index+0x5e/0x80
[ 3379.647871][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3379.647871][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3379.647871][   T73]      ip6_route_add+0x1c/0x140
[ 3379.647871][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3379.647871][   T73]      addrconf_add_dev+0xe2/0x170
[ 3379.647871][   T73]      inet6_addr_add+0x12f/0xa40
[ 3379.647871][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3379.647871][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3379.647871][   T73]      netlink_rcv_skb+0x130/0x360
[ 3379.647871][   T73]      netlink_unicast+0x449/0x710
[ 3379.647871][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3379.647871][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3379.647871][   T73]      ___sys_sendmsg+0xee/0x170
[ 3379.647871][   T73]      __sys_sendmsg+0xcd/0x170
[ 3379.647871][   T73]      do_syscall_64+0xc6/0x1e0
[ 3379.647871][   T73] 
[ 3379.649867][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3379.649867][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3379.649867][   T73]      ipv6_find_idev+0x102/0x170
[ 3379.649867][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3379.649867][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3379.649867][   T73]      netlink_rcv_skb+0x130/0x360
[ 3379.649867][   T73]      netlink_unicast+0x449/0x710
[ 3379.649867][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3379.649867][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3379.649867][   T73]      ___sys_sendmsg+0xee/0x170
[ 3379.649867][   T73]      __sys_sendmsg+0xcd/0x170
[ 3379.649867][   T73]      do_syscall_64+0xc6/0x1e0
[ 3379.649867][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3379.649867][   T73] 
[ 3379.651410][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3379.651410][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3379.651410][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3379.651410][   T73]      ipv6_find_idev+0x102/0x170
[ 3379.651410][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3379.651410][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3379.651410][   T73]      netlink_rcv_skb+0x130/0x360
[ 3379.651410][   T73]      netlink_unicast+0x449/0x710
[ 3379.651410][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3379.651410][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3379.651410][   T73]      ___sys_sendmsg+0xee/0x170
[ 3379.651410][   T73]      __sys_sendmsg+0xcd/0x170
[ 3379.651410][   T73]      do_syscall_64+0xc6/0x1e0
[ 3379.651410][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3379.651410][   T73] 
[ 3379.653224][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3379.653520][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3379.653520][   T73]      netdev_get_by_index+0x5e/0x80
[ 3379.653520][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3379.653520][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3379.653520][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3379.653520][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3379.653520][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3379.653520][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3379.653520][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3379.653520][   T73]      addrconf_dad_begin+0x310/0x670
[ 3379.653520][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3379.653520][   T73]      process_one_work+0x84d/0x18a0
[ 3379.653520][   T73]      worker_thread+0x587/0xd30
[ 3379.653520][   T73]      kthread+0x28a/0x350
[ 3379.653520][   T73]      ret_from_fork+0x31/0x70
[ 3379.653520][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3379.653520][   T73] 
[ 3379.655444][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3379.655444][   T73]      netdev_get_by_index+0x5e/0x80
[ 3379.655444][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3379.655444][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3379.655444][   T73]      ip6_route_add+0x1c/0x140
[ 3379.655444][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3379.655444][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3379.655444][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3379.655444][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3379.655444][   T73]      netlink_rcv_skb+0x130/0x360
[ 3379.655444][   T73]      netlink_unicast+0x449/0x710
[ 3379.655444][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3379.655444][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3379.655444][   T73]      ___sys_sendmsg+0xee/0x170
[ 3379.655444][   T73]      __sys_sendmsg+0xcd/0x170
[ 3379.655444][   T73]      do_syscall_64+0xc6/0x1e0
[ 3379.655444][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3379.655444][   T73] 
[ 3379.657473][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3379.657473][   T73]      netdev_get_by_index+0x5e/0x80
[ 3379.657473][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3379.657473][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3379.657473][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3379.657473][   T73]      ipv6_add_addr+0x411/0x2000
[ 3379.657473][   T73]      inet6_addr_add+0x30e/0xa40
[ 3379.657473][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3379.657473][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3379.657473][   T73]      netlink_rcv_skb+0x130/0x360
[ 3379.657473][   T73]      netlink_unicast+0x449/0x710
[ 3379.657473][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3379.657473][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3379.657473][   T73]      ___sys_sendmsg+0xee/0x170
[ 3379.657473][   T73]      __sys_sendmsg+0xcd/0x170
[ 3379.657473][   T73]      do_syscall_64+0xc6/0x1e0
[ 3379.657473][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3379.657473][   T73] 
[ 3379.659506][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3379.659506][   T73]      netdev_get_by_index+0x5e/0x80
[ 3379.659506][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3379.659506][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3379.659506][   T73]      ip6_route_add+0x1c/0x140
[ 3379.659506][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3379.659506][   T73]      addrconf_add_dev+0xe2/0x170
[ 3379.659506][   T73]      inet6_addr_add+0x12f/0xa40
[ 3379.659506][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3379.659506][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3379.659506][   T73]      netlink_rcv_skb+0x130/0x360
[ 3379.659506][   T73]      netlink_unicast+0x449/0x710
[ 3379.659506][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3379.659506][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3379.659506][   T73]      ___sys_sendmsg+0xee/0x170
[ 3379.659506][   T73]      __sys_sendmsg+0xcd/0x170
[ 3379.659506][   T73]      do_syscall_64+0xc6/0x1e0
[ 3379.659506][   T73] 
[ 3379.661484][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3379.661484][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3379.661484][   T73]      ipv6_find_idev+0x102/0x170
[ 3379.661484][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3379.661484][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3379.661484][   T73]      netlink_rcv_skb+0x130/0x360
[ 3379.661484][   T73]      netlink_unicast+0x449/0x710
[ 3379.661484][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3379.661484][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3379.661484][   T73]      ___sys_sendmsg+0xee/0x170
[ 3379.661484][   T73]      __sys_sendmsg+0xcd/0x170
[ 3379.661484][   T73]      do_syscall_64+0xc6/0x1e0
[ 3379.661484][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3379.661484][   T73] 
[ 3379.663050][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3379.663050][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3379.663050][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3379.663050][   T73]      ipv6_find_idev+0x102/0x170
[ 3379.663050][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3379.663050][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3379.663050][   T73]      netlink_rcv_skb+0x130/0x360
[ 3379.663050][   T73]      netlink_unicast+0x449/0x710
[ 3379.663050][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3379.663050][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3379.663050][   T73]      ___sys_sendmsg+0xee/0x170
[ 3379.663050][   T73]      __sys_sendmsg+0xcd/0x170
[ 3379.663050][   T73]      do_syscall_64+0xc6/0x1e0
[ 3379.663050][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3379.663050][   T73] 
[ 3379.664751][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3379.665040][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3379.665040][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3379.665040][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3379.665040][   T73]      fib6_nh_init+0xa22/0x1580
[ 3379.665040][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3379.665040][   T73]      ip6_route_add+0x1c/0x140
[ 3379.665040][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3379.665040][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3379.665040][   T73]      netlink_rcv_skb+0x130/0x360
[ 3379.665040][   T73]      netlink_unicast+0x449/0x710
[ 3379.665040][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3379.665040][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3379.665040][   T73]      ___sys_sendmsg+0xee/0x170
[ 3379.665040][   T73]      __sys_sendmsg+0xcd/0x170
[ 3379.665040][   T73]      do_syscall_64+0xc6/0x1e0
[ 3379.665040][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3379.665040][   T73] 
[ 3379.667120][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3379.667120][   T73]      dst_init+0x84/0x4a0
[ 3379.667120][   T73]      dst_alloc+0x97/0x150
[ 3379.667120][   T73]      ip6_dst_alloc+0x23/0x90
[ 3379.667120][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3379.667120][   T73]      ip6_pol_route+0x56f/0x840
[ 3379.667120][   T73]      fib6_rule_lookup+0x456/0x630
[ 3379.667120][   T73]      ip6_route_input+0x59c/0xa50
[ 3379.667120][   T73]      ipv6_rcv+0x397/0x810
[ 3379.667120][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3379.667120][   T73]      process_backlog+0x101/0x620
[ 3379.667120][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3379.667120][   T73]      net_rx_action+0x495/0xbe0
[ 3379.667120][   T73]      __do_softirq+0x1b5/0x7f6
[ 3379.667120][   T73] 
[ 3379.668959][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3379.668959][   T73]      netdev_get_by_index+0x5e/0x80
[ 3379.668959][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3379.668959][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3379.668959][   T73]      ip6_route_add+0x1c/0x140
[ 3379.668959][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3379.668959][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3379.668959][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3379.668959][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3379.668959][   T73]      netlink_rcv_skb+0x130/0x360
[ 3379.668959][   T73]      netlink_unicast+0x449/0x710
[ 3379.668959][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3379.668959][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3379.668959][   T73]      ___sys_sendmsg+0xee/0x170
[ 3379.668959][   T73]      __sys_sendmsg+0xcd/0x170
[ 3379.668959][   T73]      do_syscall_64+0xc6/0x1e0
[ 3379.668959][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3379.668959][   T73] 
[ 3379.671219][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3379.671219][   T73]      netdev_get_by_index+0x5e/0x80
[ 3379.671219][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3379.671219][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3379.671219][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3379.671219][   T73]      ipv6_add_addr+0x411/0x2000
[ 3379.671219][   T73]      inet6_addr_add+0x30e/0xa40
[ 3379.671219][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3379.671219][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3379.671219][   T73]      netlink_rcv_skb+0x130/0x360
[ 3379.671219][   T73]      netlink_unicast+0x449/0x710
[ 3379.671219][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3379.671219][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3379.671219][   T73]      ___sys_sendmsg+0xee/0x170
[ 3379.671219][   T73]      __sys_sendmsg+0xcd/0x170
[ 3379.671219][   T73]      do_syscall_64+0xc6/0x1e0
[ 3379.671219][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3379.671219][   T73] 
[ 3379.673480][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3379.673480][   T73]      netdev_get_by_index+0x5e/0x80
[ 3379.673480][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3379.673480][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3379.673480][   T73]      ip6_route_add+0x1c/0x140
[ 3379.673480][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3379.673480][   T73]      addrconf_add_dev+0xe2/0x170
[ 3379.673480][   T73]      inet6_addr_add+0x12f/0xa40
[ 3379.673480][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3379.673480][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3379.673480][   T73]      netlink_rcv_skb+0x130/0x360
[ 3379.673480][   T73]      netlink_unicast+0x449/0x710
[ 3379.673480][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3379.673480][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3379.673480][   T73]      ___sys_sendmsg+0xee/0x170
[ 3379.673480][   T73]      __sys_sendmsg+0xcd/0x170
[ 3379.673480][   T73]      do_syscall_64+0xc6/0x1e0
[ 3379.673480][   T73] 
[ 3379.675731][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3379.675731][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3379.675731][   T73]      ipv6_find_idev+0x102/0x170
[ 3379.675731][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3379.675731][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3379.675731][   T73]      netlink_rcv_skb+0x130/0x360
[ 3379.675731][   T73]      netlink_unicast+0x449/0x710
[ 3379.675731][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3379.675731][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3379.675731][   T73]      ___sys_sendmsg+0xee/0x170
[ 3379.675731][   T73]      __sys_sendmsg+0xcd/0x170
[ 3379.675731][   T73]      do_syscall_64+0xc6/0x1e0
[ 3379.675731][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3379.675731][   T73] 
[ 3379.677464][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3379.677464][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3379.677464][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3379.677464][   T73]      ipv6_find_idev+0x102/0x170
[ 3379.677464][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3379.677464][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3379.677464][   T73]      netlink_rcv_skb+0x130/0x360
[ 3379.677464][   T73]      netlink_unicast+0x449/0x710
[ 3379.677464][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3379.677464][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3379.677464][   T73]      ___sys_sendmsg+0xee/0x170
[ 3379.677464][   T73]      __sys_sendmsg+0xcd/0x170
[ 3379.677464][   T73]      do_syscall_64+0xc6/0x1e0
[ 3379.677464][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3379.677464][   T73] 
[ 3379.679385][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3379.680172][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3379.680172][   T73]      netdev_get_by_index+0x5e/0x80
[ 3379.680172][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3379.680172][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3379.680172][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3379.680172][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3379.680172][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3379.680172][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3379.680172][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3379.680172][   T73]      addrconf_dad_begin+0x310/0x670
[ 3379.680172][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3379.680172][   T73]      process_one_work+0x84d/0x18a0
[ 3379.680172][   T73]      worker_thread+0x587/0xd30
[ 3379.680172][   T73]      kthread+0x28a/0x350
[ 3379.680172][   T73]      ret_from_fork+0x31/0x70
[ 3379.680172][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3379.680172][   T73] 
[ 3379.682087][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3379.682087][   T73]      netdev_get_by_index+0x5e/0x80
[ 3379.682087][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3379.682087][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3379.682087][   T73]      ip6_route_add+0x1c/0x140
[ 3379.682087][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3379.682087][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3379.682087][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3379.682087][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3379.682087][   T73]      netlink_rcv_skb+0x130/0x360
[ 3379.682087][   T73]      netlink_unicast+0x449/0x710
[ 3379.682087][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3379.682087][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3379.682087][   T73]      ___sys_sendmsg+0xee/0x170
[ 3379.682087][   T73]      __sys_sendmsg+0xcd/0x170
[ 3379.682087][   T73]      do_syscall_64+0xc6/0x1e0
[ 3379.682087][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3379.682087][   T73] 
[ 3379.684073][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3379.684073][   T73]      netdev_get_by_index+0x5e/0x80
[ 3379.684073][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3379.684073][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3379.684073][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3379.684073][   T73]      ipv6_add_addr+0x411/0x2000
[ 3379.684073][   T73]      inet6_addr_add+0x30e/0xa40
[ 3379.684073][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3379.684073][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3379.684073][   T73]      netlink_rcv_skb+0x130/0x360
[ 3379.684073][   T73]      netlink_unicast+0x449/0x710
[ 3379.684073][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3379.684073][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3379.684073][   T73]      ___sys_sendmsg+0xee/0x170
[ 3379.684073][   T73]      __sys_sendmsg+0xcd/0x170
[ 3379.684073][   T73]      do_syscall_64+0xc6/0x1e0
[ 3379.684073][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3379.684073][   T73] 
[ 3379.686365][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3379.686365][   T73]      netdev_get_by_index+0x5e/0x80
[ 3379.686365][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3379.686365][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3379.686365][   T73]      ip6_route_add+0x1c/0x140
[ 3379.686365][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3379.686365][   T73]      addrconf_add_dev+0xe2/0x170
[ 3379.686365][   T73]      inet6_addr_add+0x12f/0xa40
[ 3379.686365][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3379.686365][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3379.686365][   T73]      netlink_rcv_skb+0x130/0x360
[ 3379.686365][   T73]      netlink_unicast+0x449/0x710
[ 3379.686365][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3379.686365][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3379.686365][   T73]      ___sys_sendmsg+0xee/0x170
[ 3379.686365][   T73]      __sys_sendmsg+0xcd/0x170
[ 3379.686365][   T73]      do_syscall_64+0xc6/0x1e0
[ 3379.686365][   T73] 
[ 3379.688572][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3379.688572][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3379.688572][   T73]      ipv6_find_idev+0x102/0x170
[ 3379.688572][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3379.688572][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3379.688572][   T73]      netlink_rcv_skb+0x130/0x360
[ 3379.688572][   T73]      netlink_unicast+0x449/0x710
[ 3379.688572][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3379.688572][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3379.688572][   T73]      ___sys_sendmsg+0xee/0x170
[ 3379.688572][   T73]      __sys_sendmsg+0xcd/0x170
[ 3379.688572][   T73]      do_syscall_64+0xc6/0x1e0
[ 3379.688572][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3379.688572][   T73] 
[ 3379.690291][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3379.690291][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3379.690291][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3379.690291][   T73]      ipv6_find_idev+0x102/0x170
[ 3379.690291][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3379.690291][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3379.690291][   T73]      netlink_rcv_skb+0x130/0x360
[ 3379.690291][   T73]      netlink_unicast+0x449/0x710
[ 3379.690291][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3379.690291][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3379.690291][   T73]      ___sys_sendmsg+0xee/0x170
[ 3379.690291][   T73]      __sys_sendmsg+0xcd/0x170
[ 3379.690291][   T73]      do_syscall_64+0xc6/0x1e0
[ 3379.690291][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3379.690291][   T73] 
[ 3389.943700][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3389.944210][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3389.944210][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3389.944210][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3389.944210][   T73]      fib6_nh_init+0xa22/0x1580
[ 3389.944210][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3389.944210][   T73]      ip6_route_add+0x1c/0x140
[ 3389.944210][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3389.944210][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3389.944210][   T73]      netlink_rcv_skb+0x130/0x360
[ 3389.944210][   T73]      netlink_unicast+0x449/0x710
[ 3389.944210][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3389.944210][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3389.944210][   T73]      ___sys_sendmsg+0xee/0x170
[ 3389.944210][   T73]      __sys_sendmsg+0xcd/0x170
[ 3389.944210][   T73]      do_syscall_64+0xc6/0x1e0
[ 3389.944210][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3389.944210][   T73] 
[ 3389.946141][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3389.946141][   T73]      dst_init+0x84/0x4a0
[ 3389.946141][   T73]      dst_alloc+0x97/0x150
[ 3389.946141][   T73]      ip6_dst_alloc+0x23/0x90
[ 3389.946141][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3389.946141][   T73]      ip6_pol_route+0x56f/0x840
[ 3389.946141][   T73]      fib6_rule_lookup+0x456/0x630
[ 3389.946141][   T73]      ip6_route_input+0x59c/0xa50
[ 3389.946141][   T73]      ipv6_rcv+0x397/0x810
[ 3389.946141][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3389.946141][   T73]      process_backlog+0x101/0x620
[ 3389.946141][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3389.946141][   T73]      net_rx_action+0x495/0xbe0
[ 3389.946141][   T73]      __do_softirq+0x1b5/0x7f6
[ 3389.946141][   T73] 
[ 3389.947792][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3389.947792][   T73]      netdev_get_by_index+0x5e/0x80
[ 3389.947792][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3389.947792][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3389.947792][   T73]      ip6_route_add+0x1c/0x140
[ 3389.947792][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3389.947792][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3389.947792][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3389.947792][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3389.947792][   T73]      netlink_rcv_skb+0x130/0x360
[ 3389.947792][   T73]      netlink_unicast+0x449/0x710
[ 3389.947792][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3389.947792][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3389.947792][   T73]      ___sys_sendmsg+0xee/0x170
[ 3389.947792][   T73]      __sys_sendmsg+0xcd/0x170
[ 3389.947792][   T73]      do_syscall_64+0xc6/0x1e0
[ 3389.947792][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3389.947792][   T73] 
[ 3389.949844][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3389.949844][   T73]      netdev_get_by_index+0x5e/0x80
[ 3389.949844][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3389.949844][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3389.949844][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3389.949844][   T73]      ipv6_add_addr+0x411/0x2000
[ 3389.949844][   T73]      inet6_addr_add+0x30e/0xa40
[ 3389.949844][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3389.949844][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3389.949844][   T73]      netlink_rcv_skb+0x130/0x360
[ 3389.949844][   T73]      netlink_unicast+0x449/0x710
[ 3389.949844][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3389.949844][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3389.949844][   T73]      ___sys_sendmsg+0xee/0x170
[ 3389.949844][   T73]      __sys_sendmsg+0xcd/0x170
[ 3389.949844][   T73]      do_syscall_64+0xc6/0x1e0
[ 3389.949844][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3389.949844][   T73] 
[ 3389.951880][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3389.951880][   T73]      netdev_get_by_index+0x5e/0x80
[ 3389.951880][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3389.951880][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3389.951880][   T73]      ip6_route_add+0x1c/0x140
[ 3389.951880][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3389.951880][   T73]      addrconf_add_dev+0xe2/0x170
[ 3389.951880][   T73]      inet6_addr_add+0x12f/0xa40
[ 3389.951880][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3389.951880][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3389.951880][   T73]      netlink_rcv_skb+0x130/0x360
[ 3389.951880][   T73]      netlink_unicast+0x449/0x710
[ 3389.951880][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3389.951880][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3389.951880][   T73]      ___sys_sendmsg+0xee/0x170
[ 3389.951880][   T73]      __sys_sendmsg+0xcd/0x170
[ 3389.951880][   T73]      do_syscall_64+0xc6/0x1e0
[ 3389.951880][   T73] 
[ 3389.953890][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3389.953890][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3389.953890][   T73]      ipv6_find_idev+0x102/0x170
[ 3389.953890][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3389.953890][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3389.953890][   T73]      netlink_rcv_skb+0x130/0x360
[ 3389.953890][   T73]      netlink_unicast+0x449/0x710
[ 3389.953890][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3389.953890][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3389.953890][   T73]      ___sys_sendmsg+0xee/0x170
[ 3389.953890][   T73]      __sys_sendmsg+0xcd/0x170
[ 3389.953890][   T73]      do_syscall_64+0xc6/0x1e0
[ 3389.953890][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3389.953890][   T73] 
[ 3389.955463][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3389.955463][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3389.955463][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3389.955463][   T73]      ipv6_find_idev+0x102/0x170
[ 3389.955463][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3389.955463][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3389.955463][   T73]      netlink_rcv_skb+0x130/0x360
[ 3389.955463][   T73]      netlink_unicast+0x449/0x710
[ 3389.955463][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3389.955463][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3389.955463][   T73]      ___sys_sendmsg+0xee/0x170
[ 3389.955463][   T73]      __sys_sendmsg+0xcd/0x170
[ 3389.955463][   T73]      do_syscall_64+0xc6/0x1e0
[ 3389.955463][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3389.955463][   T73] 
[ 3389.957191][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3389.957478][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3389.957478][   T73]      netdev_get_by_index+0x5e/0x80
[ 3389.957478][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3389.957478][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3389.957478][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3389.957478][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3389.957478][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3389.957478][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3389.957478][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3389.957478][   T73]      addrconf_dad_begin+0x310/0x670
[ 3389.957478][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3389.957478][   T73]      process_one_work+0x84d/0x18a0
[ 3389.957478][   T73]      worker_thread+0x587/0xd30
[ 3389.957478][   T73]      kthread+0x28a/0x350
[ 3389.957478][   T73]      ret_from_fork+0x31/0x70
[ 3389.957478][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3389.957478][   T73] 
[ 3389.959448][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3389.959448][   T73]      netdev_get_by_index+0x5e/0x80
[ 3389.959448][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3389.959448][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3389.959448][   T73]      ip6_route_add+0x1c/0x140
[ 3389.959448][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3389.959448][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3389.959448][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3389.959448][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3389.959448][   T73]      netlink_rcv_skb+0x130/0x360
[ 3389.959448][   T73]      netlink_unicast+0x449/0x710
[ 3389.959448][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3389.959448][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3389.959448][   T73]      ___sys_sendmsg+0xee/0x170
[ 3389.959448][   T73]      __sys_sendmsg+0xcd/0x170
[ 3389.959448][   T73]      do_syscall_64+0xc6/0x1e0
[ 3389.959448][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3389.959448][   T73] 
[ 3389.961478][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3389.961478][   T73]      netdev_get_by_index+0x5e/0x80
[ 3389.961478][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3389.961478][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3389.961478][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3389.961478][   T73]      ipv6_add_addr+0x411/0x2000
[ 3389.961478][   T73]      inet6_addr_add+0x30e/0xa40
[ 3389.961478][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3389.961478][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3389.961478][   T73]      netlink_rcv_skb+0x130/0x360
[ 3389.961478][   T73]      netlink_unicast+0x449/0x710
[ 3389.961478][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3389.961478][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3389.961478][   T73]      ___sys_sendmsg+0xee/0x170
[ 3389.961478][   T73]      __sys_sendmsg+0xcd/0x170
[ 3389.961478][   T73]      do_syscall_64+0xc6/0x1e0
[ 3389.961478][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3389.961478][   T73] 
[ 3389.963510][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3389.963510][   T73]      netdev_get_by_index+0x5e/0x80
[ 3389.963510][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3389.963510][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3389.963510][   T73]      ip6_route_add+0x1c/0x140
[ 3389.963510][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3389.963510][   T73]      addrconf_add_dev+0xe2/0x170
[ 3389.963510][   T73]      inet6_addr_add+0x12f/0xa40
[ 3389.963510][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3389.963510][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3389.963510][   T73]      netlink_rcv_skb+0x130/0x360
[ 3389.963510][   T73]      netlink_unicast+0x449/0x710
[ 3389.963510][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3389.963510][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3389.963510][   T73]      ___sys_sendmsg+0xee/0x170
[ 3389.963510][   T73]      __sys_sendmsg+0xcd/0x170
[ 3389.963510][   T73]      do_syscall_64+0xc6/0x1e0
[ 3389.963510][   T73] 
[ 3389.965505][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3389.965505][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3389.965505][   T73]      ipv6_find_idev+0x102/0x170
[ 3389.965505][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3389.965505][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3389.965505][   T73]      netlink_rcv_skb+0x130/0x360
[ 3389.965505][   T73]      netlink_unicast+0x449/0x710
[ 3389.965505][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3389.965505][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3389.965505][   T73]      ___sys_sendmsg+0xee/0x170
[ 3389.965505][   T73]      __sys_sendmsg+0xcd/0x170
[ 3389.965505][   T73]      do_syscall_64+0xc6/0x1e0
[ 3389.965505][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3389.965505][   T73] 
[ 3389.967105][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3389.967105][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3389.967105][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3389.967105][   T73]      ipv6_find_idev+0x102/0x170
[ 3389.967105][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3389.967105][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3389.967105][   T73]      netlink_rcv_skb+0x130/0x360
[ 3389.967105][   T73]      netlink_unicast+0x449/0x710
[ 3389.967105][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3389.967105][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3389.967105][   T73]      ___sys_sendmsg+0xee/0x170
[ 3389.967105][   T73]      __sys_sendmsg+0xcd/0x170
[ 3389.967105][   T73]      do_syscall_64+0xc6/0x1e0
[ 3389.967105][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3389.967105][   T73] 
[ 3389.968929][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3389.969238][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3389.969238][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3389.969238][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3389.969238][   T73]      fib6_nh_init+0xa22/0x1580
[ 3389.969238][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3389.969238][   T73]      ip6_route_add+0x1c/0x140
[ 3389.969238][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3389.969238][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3389.969238][   T73]      netlink_rcv_skb+0x130/0x360
[ 3389.969238][   T73]      netlink_unicast+0x449/0x710
[ 3389.969238][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3389.969238][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3389.969238][   T73]      ___sys_sendmsg+0xee/0x170
[ 3389.969238][   T73]      __sys_sendmsg+0xcd/0x170
[ 3389.969238][   T73]      do_syscall_64+0xc6/0x1e0
[ 3389.969238][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3389.969238][   T73] 
[ 3389.971841][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3389.971841][   T73]      dst_init+0x84/0x4a0
[ 3389.971841][   T73]      dst_alloc+0x97/0x150
[ 3389.971841][   T73]      ip6_dst_alloc+0x23/0x90
[ 3389.971841][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3389.971841][   T73]      ip6_pol_route+0x56f/0x840
[ 3389.971841][   T73]      fib6_rule_lookup+0x456/0x630
[ 3389.971841][   T73]      ip6_route_input+0x59c/0xa50
[ 3389.971841][   T73]      ipv6_rcv+0x397/0x810
[ 3389.971841][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3389.971841][   T73]      process_backlog+0x101/0x620
[ 3389.971841][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3389.971841][   T73]      net_rx_action+0x495/0xbe0
[ 3389.971841][   T73]      __do_softirq+0x1b5/0x7f6
[ 3389.971841][   T73] 
[ 3389.973579][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3389.973579][   T73]      netdev_get_by_index+0x5e/0x80
[ 3389.973579][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3389.973579][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3389.973579][   T73]      ip6_route_add+0x1c/0x140
[ 3389.973579][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3389.973579][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3389.973579][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3389.973579][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3389.973579][   T73]      netlink_rcv_skb+0x130/0x360
[ 3389.973579][   T73]      netlink_unicast+0x449/0x710
[ 3389.973579][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3389.973579][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3389.973579][   T73]      ___sys_sendmsg+0xee/0x170
[ 3389.973579][   T73]      __sys_sendmsg+0xcd/0x170
[ 3389.973579][   T73]      do_syscall_64+0xc6/0x1e0
[ 3389.973579][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3389.973579][   T73] 
[ 3389.975765][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3389.975765][   T73]      netdev_get_by_index+0x5e/0x80
[ 3389.975765][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3389.975765][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3389.975765][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3389.975765][   T73]      ipv6_add_addr+0x411/0x2000
[ 3389.975765][   T73]      inet6_addr_add+0x30e/0xa40
[ 3389.975765][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3389.975765][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3389.975765][   T73]      netlink_rcv_skb+0x130/0x360
[ 3389.975765][   T73]      netlink_unicast+0x449/0x710
[ 3389.975765][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3389.975765][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3389.975765][   T73]      ___sys_sendmsg+0xee/0x170
[ 3389.975765][   T73]      __sys_sendmsg+0xcd/0x170
[ 3389.975765][   T73]      do_syscall_64+0xc6/0x1e0
[ 3389.975765][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3389.975765][   T73] 
[ 3389.977937][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3389.977937][   T73]      netdev_get_by_index+0x5e/0x80
[ 3389.977937][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3389.977937][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3389.977937][   T73]      ip6_route_add+0x1c/0x140
[ 3389.977937][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3389.977937][   T73]      addrconf_add_dev+0xe2/0x170
[ 3389.977937][   T73]      inet6_addr_add+0x12f/0xa40
[ 3389.977937][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3389.977937][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3389.977937][   T73]      netlink_rcv_skb+0x130/0x360
[ 3389.977937][   T73]      netlink_unicast+0x449/0x710
[ 3389.977937][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3389.977937][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3389.977937][   T73]      ___sys_sendmsg+0xee/0x170
[ 3389.977937][   T73]      __sys_sendmsg+0xcd/0x170
[ 3389.977937][   T73]      do_syscall_64+0xc6/0x1e0
[ 3389.977937][   T73] 
[ 3389.980137][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3389.980137][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3389.980137][   T73]      ipv6_find_idev+0x102/0x170
[ 3389.980137][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3389.980137][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3389.980137][   T73]      netlink_rcv_skb+0x130/0x360
[ 3389.980137][   T73]      netlink_unicast+0x449/0x710
[ 3389.980137][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3389.980137][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3389.980137][   T73]      ___sys_sendmsg+0xee/0x170
[ 3389.980137][   T73]      __sys_sendmsg+0xcd/0x170
[ 3389.980137][   T73]      do_syscall_64+0xc6/0x1e0
[ 3389.980137][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3389.980137][   T73] 
[ 3389.981761][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3389.981761][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3389.981761][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3389.981761][   T73]      ipv6_find_idev+0x102/0x170
[ 3389.981761][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3389.981761][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3389.981761][   T73]      netlink_rcv_skb+0x130/0x360
[ 3389.981761][   T73]      netlink_unicast+0x449/0x710
[ 3389.981761][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3389.981761][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3389.981761][   T73]      ___sys_sendmsg+0xee/0x170
[ 3389.981761][   T73]      __sys_sendmsg+0xcd/0x170
[ 3389.981761][   T73]      do_syscall_64+0xc6/0x1e0
[ 3389.981761][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3389.981761][   T73] 
[ 3389.983612][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3389.984343][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3389.984343][   T73]      netdev_get_by_index+0x5e/0x80
[ 3389.984343][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3389.984343][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3389.984343][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3389.984343][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3389.984343][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3389.984343][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3389.984343][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3389.984343][   T73]      addrconf_dad_begin+0x310/0x670
[ 3389.984343][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3389.984343][   T73]      process_one_work+0x84d/0x18a0
[ 3389.984343][   T73]      worker_thread+0x587/0xd30
[ 3389.984343][   T73]      kthread+0x28a/0x350
[ 3389.984343][   T73]      ret_from_fork+0x31/0x70
[ 3389.984343][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3389.984343][   T73] 
[ 3389.988699][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3389.988699][   T73]      netdev_get_by_index+0x5e/0x80
[ 3389.988699][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3389.988699][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3389.988699][   T73]      ip6_route_add+0x1c/0x140
[ 3389.988699][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3389.988699][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3389.988699][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3389.988699][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3389.988699][   T73]      netlink_rcv_skb+0x130/0x360
[ 3389.988699][   T73]      netlink_unicast+0x449/0x710
[ 3389.988699][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3389.988699][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3389.988699][   T73]      ___sys_sendmsg+0xee/0x170
[ 3389.988699][   T73]      __sys_sendmsg+0xcd/0x170
[ 3389.988699][   T73]      do_syscall_64+0xc6/0x1e0
[ 3389.988699][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3389.988699][   T73] 
[ 3389.990838][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3389.990838][   T73]      netdev_get_by_index+0x5e/0x80
[ 3389.990838][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3389.990838][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3389.990838][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3389.990838][   T73]      ipv6_add_addr+0x411/0x2000
[ 3389.990838][   T73]      inet6_addr_add+0x30e/0xa40
[ 3389.990838][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3389.990838][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3389.990838][   T73]      netlink_rcv_skb+0x130/0x360
[ 3389.990838][   T73]      netlink_unicast+0x449/0x710
[ 3389.990838][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3389.990838][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3389.990838][   T73]      ___sys_sendmsg+0xee/0x170
[ 3389.990838][   T73]      __sys_sendmsg+0xcd/0x170
[ 3389.990838][   T73]      do_syscall_64+0xc6/0x1e0
[ 3389.990838][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3389.990838][   T73] 
[ 3389.992981][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3389.992981][   T73]      netdev_get_by_index+0x5e/0x80
[ 3389.992981][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3389.992981][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3389.992981][   T73]      ip6_route_add+0x1c/0x140
[ 3389.992981][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3389.992981][   T73]      addrconf_add_dev+0xe2/0x170
[ 3389.992981][   T73]      inet6_addr_add+0x12f/0xa40
[ 3389.992981][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3389.992981][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3389.992981][   T73]      netlink_rcv_skb+0x130/0x360
[ 3389.992981][   T73]      netlink_unicast+0x449/0x710
[ 3389.992981][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3389.992981][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3389.992981][   T73]      ___sys_sendmsg+0xee/0x170
[ 3389.992981][   T73]      __sys_sendmsg+0xcd/0x170
[ 3389.992981][   T73]      do_syscall_64+0xc6/0x1e0
[ 3389.992981][   T73] 
[ 3389.995110][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3389.995110][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3389.995110][   T73]      ipv6_find_idev+0x102/0x170
[ 3389.995110][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3389.995110][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3389.995110][   T73]      netlink_rcv_skb+0x130/0x360
[ 3389.995110][   T73]      netlink_unicast+0x449/0x710
[ 3389.995110][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3389.995110][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3389.995110][   T73]      ___sys_sendmsg+0xee/0x170
[ 3389.995110][   T73]      __sys_sendmsg+0xcd/0x170
[ 3389.995110][   T73]      do_syscall_64+0xc6/0x1e0
[ 3389.995110][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3389.995110][   T73] 
[ 3389.996801][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3389.996801][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3389.996801][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3389.996801][   T73]      ipv6_find_idev+0x102/0x170
[ 3389.996801][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3389.996801][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3389.996801][   T73]      netlink_rcv_skb+0x130/0x360
[ 3389.996801][   T73]      netlink_unicast+0x449/0x710
[ 3389.996801][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3389.996801][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3389.996801][   T73]      ___sys_sendmsg+0xee/0x170
[ 3389.996801][   T73]      __sys_sendmsg+0xcd/0x170
[ 3389.996801][   T73]      do_syscall_64+0xc6/0x1e0
[ 3389.996801][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3389.996801][   T73] 
[ 3399.999774][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3400.000231][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3400.000231][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3400.000231][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3400.000231][   T73]      fib6_nh_init+0xa22/0x1580
[ 3400.000231][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3400.000231][   T73]      ip6_route_add+0x1c/0x140
[ 3400.000231][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3400.000231][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3400.000231][   T73]      netlink_rcv_skb+0x130/0x360
[ 3400.000231][   T73]      netlink_unicast+0x449/0x710
[ 3400.000231][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3400.000231][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3400.000231][   T73]      ___sys_sendmsg+0xee/0x170
[ 3400.000231][   T73]      __sys_sendmsg+0xcd/0x170
[ 3400.000231][   T73]      do_syscall_64+0xc6/0x1e0
[ 3400.000231][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3400.000231][   T73] 
[ 3400.002194][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3400.002194][   T73]      dst_init+0x84/0x4a0
[ 3400.002194][   T73]      dst_alloc+0x97/0x150
[ 3400.002194][   T73]      ip6_dst_alloc+0x23/0x90
[ 3400.002194][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3400.002194][   T73]      ip6_pol_route+0x56f/0x840
[ 3400.002194][   T73]      fib6_rule_lookup+0x456/0x630
[ 3400.002194][   T73]      ip6_route_input+0x59c/0xa50
[ 3400.002194][   T73]      ipv6_rcv+0x397/0x810
[ 3400.002194][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3400.002194][   T73]      process_backlog+0x101/0x620
[ 3400.002194][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3400.002194][   T73]      net_rx_action+0x495/0xbe0
[ 3400.002194][   T73]      __do_softirq+0x1b5/0x7f6
[ 3400.002194][   T73] 
[ 3400.003871][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3400.003871][   T73]      netdev_get_by_index+0x5e/0x80
[ 3400.003871][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3400.003871][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3400.003871][   T73]      ip6_route_add+0x1c/0x140
[ 3400.003871][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3400.003871][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3400.003871][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3400.003871][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3400.003871][   T73]      netlink_rcv_skb+0x130/0x360
[ 3400.003871][   T73]      netlink_unicast+0x449/0x710
[ 3400.003871][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3400.003871][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3400.003871][   T73]      ___sys_sendmsg+0xee/0x170
[ 3400.003871][   T73]      __sys_sendmsg+0xcd/0x170
[ 3400.003871][   T73]      do_syscall_64+0xc6/0x1e0
[ 3400.003871][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3400.003871][   T73] 
[ 3400.006041][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3400.006041][   T73]      netdev_get_by_index+0x5e/0x80
[ 3400.006041][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3400.006041][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3400.006041][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3400.006041][   T73]      ipv6_add_addr+0x411/0x2000
[ 3400.006041][   T73]      inet6_addr_add+0x30e/0xa40
[ 3400.006041][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3400.006041][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3400.006041][   T73]      netlink_rcv_skb+0x130/0x360
[ 3400.006041][   T73]      netlink_unicast+0x449/0x710
[ 3400.006041][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3400.006041][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3400.006041][   T73]      ___sys_sendmsg+0xee/0x170
[ 3400.006041][   T73]      __sys_sendmsg+0xcd/0x170
[ 3400.006041][   T73]      do_syscall_64+0xc6/0x1e0
[ 3400.006041][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3400.006041][   T73] 
[ 3400.008074][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3400.008074][   T73]      netdev_get_by_index+0x5e/0x80
[ 3400.008074][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3400.008074][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3400.008074][   T73]      ip6_route_add+0x1c/0x140
[ 3400.008074][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3400.008074][   T73]      addrconf_add_dev+0xe2/0x170
[ 3400.008074][   T73]      inet6_addr_add+0x12f/0xa40
[ 3400.008074][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3400.008074][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3400.008074][   T73]      netlink_rcv_skb+0x130/0x360
[ 3400.008074][   T73]      netlink_unicast+0x449/0x710
[ 3400.008074][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3400.008074][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3400.008074][   T73]      ___sys_sendmsg+0xee/0x170
[ 3400.008074][   T73]      __sys_sendmsg+0xcd/0x170
[ 3400.008074][   T73]      do_syscall_64+0xc6/0x1e0
[ 3400.008074][   T73] 
[ 3400.010097][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3400.010097][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3400.010097][   T73]      ipv6_find_idev+0x102/0x170
[ 3400.010097][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3400.010097][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3400.010097][   T73]      netlink_rcv_skb+0x130/0x360
[ 3400.010097][   T73]      netlink_unicast+0x449/0x710
[ 3400.010097][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3400.010097][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3400.010097][   T73]      ___sys_sendmsg+0xee/0x170
[ 3400.010097][   T73]      __sys_sendmsg+0xcd/0x170
[ 3400.010097][   T73]      do_syscall_64+0xc6/0x1e0
[ 3400.010097][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3400.010097][   T73] 
[ 3400.011672][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3400.011672][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3400.011672][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3400.011672][   T73]      ipv6_find_idev+0x102/0x170
[ 3400.011672][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3400.011672][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3400.011672][   T73]      netlink_rcv_skb+0x130/0x360
[ 3400.011672][   T73]      netlink_unicast+0x449/0x710
[ 3400.011672][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3400.011672][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3400.011672][   T73]      ___sys_sendmsg+0xee/0x170
[ 3400.011672][   T73]      __sys_sendmsg+0xcd/0x170
[ 3400.011672][   T73]      do_syscall_64+0xc6/0x1e0
[ 3400.011672][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3400.011672][   T73] 
[ 3400.013414][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3400.013702][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3400.013702][   T73]      netdev_get_by_index+0x5e/0x80
[ 3400.013702][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3400.013702][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3400.013702][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3400.013702][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3400.013702][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3400.013702][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3400.013702][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3400.013702][   T73]      addrconf_dad_begin+0x310/0x670
[ 3400.013702][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3400.013702][   T73]      process_one_work+0x84d/0x18a0
[ 3400.013702][   T73]      worker_thread+0x587/0xd30
[ 3400.013702][   T73]      kthread+0x28a/0x350
[ 3400.013702][   T73]      ret_from_fork+0x31/0x70
[ 3400.013702][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3400.013702][   T73] 
[ 3400.033770][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3400.033770][   T73]      netdev_get_by_index+0x5e/0x80
[ 3400.033770][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3400.033770][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3400.033770][   T73]      ip6_route_add+0x1c/0x140
[ 3400.033770][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3400.033770][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3400.033770][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3400.033770][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3400.033770][   T73]      netlink_rcv_skb+0x130/0x360
[ 3400.033770][   T73]      netlink_unicast+0x449/0x710
[ 3400.033770][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3400.033770][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3400.033770][   T73]      ___sys_sendmsg+0xee/0x170
[ 3400.033770][   T73]      __sys_sendmsg+0xcd/0x170
[ 3400.033770][   T73]      do_syscall_64+0xc6/0x1e0
[ 3400.033770][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3400.033770][   T73] 
[ 3400.035808][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3400.035808][   T73]      netdev_get_by_index+0x5e/0x80
[ 3400.035808][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3400.035808][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3400.035808][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3400.035808][   T73]      ipv6_add_addr+0x411/0x2000
[ 3400.035808][   T73]      inet6_addr_add+0x30e/0xa40
[ 3400.035808][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3400.035808][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3400.035808][   T73]      netlink_rcv_skb+0x130/0x360
[ 3400.035808][   T73]      netlink_unicast+0x449/0x710
[ 3400.035808][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3400.035808][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3400.035808][   T73]      ___sys_sendmsg+0xee/0x170
[ 3400.035808][   T73]      __sys_sendmsg+0xcd/0x170
[ 3400.035808][   T73]      do_syscall_64+0xc6/0x1e0
[ 3400.035808][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3400.035808][   T73] 
[ 3400.037836][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3400.037836][   T73]      netdev_get_by_index+0x5e/0x80
[ 3400.037836][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3400.037836][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3400.037836][   T73]      ip6_route_add+0x1c/0x140
[ 3400.037836][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3400.037836][   T73]      addrconf_add_dev+0xe2/0x170
[ 3400.037836][   T73]      inet6_addr_add+0x12f/0xa40
[ 3400.037836][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3400.037836][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3400.037836][   T73]      netlink_rcv_skb+0x130/0x360
[ 3400.037836][   T73]      netlink_unicast+0x449/0x710
[ 3400.037836][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3400.037836][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3400.037836][   T73]      ___sys_sendmsg+0xee/0x170
[ 3400.037836][   T73]      __sys_sendmsg+0xcd/0x170
[ 3400.037836][   T73]      do_syscall_64+0xc6/0x1e0
[ 3400.037836][   T73] 
[ 3400.039827][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3400.039827][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3400.039827][   T73]      ipv6_find_idev+0x102/0x170
[ 3400.039827][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3400.039827][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3400.039827][   T73]      netlink_rcv_skb+0x130/0x360
[ 3400.039827][   T73]      netlink_unicast+0x449/0x710
[ 3400.039827][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3400.039827][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3400.039827][   T73]      ___sys_sendmsg+0xee/0x170
[ 3400.039827][   T73]      __sys_sendmsg+0xcd/0x170
[ 3400.039827][   T73]      do_syscall_64+0xc6/0x1e0
[ 3400.039827][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3400.039827][   T73] 
[ 3400.041390][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3400.041390][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3400.041390][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3400.041390][   T73]      ipv6_find_idev+0x102/0x170
[ 3400.041390][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3400.041390][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3400.041390][   T73]      netlink_rcv_skb+0x130/0x360
[ 3400.041390][   T73]      netlink_unicast+0x449/0x710
[ 3400.041390][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3400.041390][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3400.041390][   T73]      ___sys_sendmsg+0xee/0x170
[ 3400.041390][   T73]      __sys_sendmsg+0xcd/0x170
[ 3400.041390][   T73]      do_syscall_64+0xc6/0x1e0
[ 3400.041390][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3400.041390][   T73] 
[ 3400.043142][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3400.043430][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3400.043430][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3400.043430][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3400.043430][   T73]      fib6_nh_init+0xa22/0x1580
[ 3400.043430][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3400.043430][   T73]      ip6_route_add+0x1c/0x140
[ 3400.043430][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3400.043430][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3400.043430][   T73]      netlink_rcv_skb+0x130/0x360
[ 3400.043430][   T73]      netlink_unicast+0x449/0x710
[ 3400.043430][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3400.043430][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3400.043430][   T73]      ___sys_sendmsg+0xee/0x170
[ 3400.043430][   T73]      __sys_sendmsg+0xcd/0x170
[ 3400.043430][   T73]      do_syscall_64+0xc6/0x1e0
[ 3400.043430][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3400.043430][   T73] 
[ 3400.045507][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3400.045507][   T73]      dst_init+0x84/0x4a0
[ 3400.045507][   T73]      dst_alloc+0x97/0x150
[ 3400.045507][   T73]      ip6_dst_alloc+0x23/0x90
[ 3400.045507][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3400.045507][   T73]      ip6_pol_route+0x56f/0x840
[ 3400.045507][   T73]      fib6_rule_lookup+0x456/0x630
[ 3400.045507][   T73]      ip6_route_input+0x59c/0xa50
[ 3400.045507][   T73]      ipv6_rcv+0x397/0x810
[ 3400.045507][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3400.045507][   T73]      process_backlog+0x101/0x620
[ 3400.045507][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3400.045507][   T73]      net_rx_action+0x495/0xbe0
[ 3400.045507][   T73]      __do_softirq+0x1b5/0x7f6
[ 3400.045507][   T73] 
[ 3400.047431][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3400.047431][   T73]      netdev_get_by_index+0x5e/0x80
[ 3400.047431][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3400.047431][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3400.047431][   T73]      ip6_route_add+0x1c/0x140
[ 3400.047431][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3400.047431][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3400.047431][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3400.047431][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3400.047431][   T73]      netlink_rcv_skb+0x130/0x360
[ 3400.047431][   T73]      netlink_unicast+0x449/0x710
[ 3400.047431][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3400.047431][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3400.047431][   T73]      ___sys_sendmsg+0xee/0x170
[ 3400.047431][   T73]      __sys_sendmsg+0xcd/0x170
[ 3400.047431][   T73]      do_syscall_64+0xc6/0x1e0
[ 3400.047431][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3400.047431][   T73] 
[ 3400.049716][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3400.049716][   T73]      netdev_get_by_index+0x5e/0x80
[ 3400.049716][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3400.049716][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3400.049716][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3400.049716][   T73]      ipv6_add_addr+0x411/0x2000
[ 3400.049716][   T73]      inet6_addr_add+0x30e/0xa40
[ 3400.049716][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3400.049716][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3400.049716][   T73]      netlink_rcv_skb+0x130/0x360
[ 3400.049716][   T73]      netlink_unicast+0x449/0x710
[ 3400.049716][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3400.049716][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3400.049716][   T73]      ___sys_sendmsg+0xee/0x170
[ 3400.049716][   T73]      __sys_sendmsg+0xcd/0x170
[ 3400.049716][   T73]      do_syscall_64+0xc6/0x1e0
[ 3400.049716][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3400.049716][   T73] 
[ 3400.052084][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3400.052084][   T73]      netdev_get_by_index+0x5e/0x80
[ 3400.052084][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3400.052084][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3400.052084][   T73]      ip6_route_add+0x1c/0x140
[ 3400.052084][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3400.052084][   T73]      addrconf_add_dev+0xe2/0x170
[ 3400.052084][   T73]      inet6_addr_add+0x12f/0xa40
[ 3400.052084][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3400.052084][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3400.052084][   T73]      netlink_rcv_skb+0x130/0x360
[ 3400.052084][   T73]      netlink_unicast+0x449/0x710
[ 3400.052084][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3400.052084][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3400.052084][   T73]      ___sys_sendmsg+0xee/0x170
[ 3400.052084][   T73]      __sys_sendmsg+0xcd/0x170
[ 3400.052084][   T73]      do_syscall_64+0xc6/0x1e0
[ 3400.052084][   T73] 
[ 3400.054269][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3400.054269][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3400.054269][   T73]      ipv6_find_idev+0x102/0x170
[ 3400.054269][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3400.054269][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3400.054269][   T73]      netlink_rcv_skb+0x130/0x360
[ 3400.054269][   T73]      netlink_unicast+0x449/0x710
[ 3400.054269][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3400.054269][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3400.054269][   T73]      ___sys_sendmsg+0xee/0x170
[ 3400.054269][   T73]      __sys_sendmsg+0xcd/0x170
[ 3400.054269][   T73]      do_syscall_64+0xc6/0x1e0
[ 3400.054269][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3400.054269][   T73] 
[ 3400.056008][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3400.056008][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3400.056008][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3400.056008][   T73]      ipv6_find_idev+0x102/0x170
[ 3400.056008][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3400.056008][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3400.056008][   T73]      netlink_rcv_skb+0x130/0x360
[ 3400.056008][   T73]      netlink_unicast+0x449/0x710
[ 3400.056008][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3400.056008][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3400.056008][   T73]      ___sys_sendmsg+0xee/0x170
[ 3400.056008][   T73]      __sys_sendmsg+0xcd/0x170
[ 3400.056008][   T73]      do_syscall_64+0xc6/0x1e0
[ 3400.056008][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3400.056008][   T73] 
[ 3400.058029][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3400.058339][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3400.058339][   T73]      netdev_get_by_index+0x5e/0x80
[ 3400.058339][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3400.058339][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3400.058339][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3400.058339][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3400.058339][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3400.058339][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3400.058339][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3400.058339][   T73]      addrconf_dad_begin+0x310/0x670
[ 3400.058339][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3400.058339][   T73]      process_one_work+0x84d/0x18a0
[ 3400.058339][   T73]      worker_thread+0x587/0xd30
[ 3400.058339][   T73]      kthread+0x28a/0x350
[ 3400.058339][   T73]      ret_from_fork+0x31/0x70
[ 3400.058339][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3400.058339][   T73] 
[ 3400.060521][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3400.060521][   T73]      netdev_get_by_index+0x5e/0x80
[ 3400.060521][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3400.060521][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3400.060521][   T73]      ip6_route_add+0x1c/0x140
[ 3400.060521][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3400.060521][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3400.060521][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3400.060521][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3400.060521][   T73]      netlink_rcv_skb+0x130/0x360
[ 3400.060521][   T73]      netlink_unicast+0x449/0x710
[ 3400.060521][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3400.060521][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3400.060521][   T73]      ___sys_sendmsg+0xee/0x170
[ 3400.060521][   T73]      __sys_sendmsg+0xcd/0x170
[ 3400.060521][   T73]      do_syscall_64+0xc6/0x1e0
[ 3400.060521][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3400.060521][   T73] 
[ 3400.062799][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3400.062799][   T73]      netdev_get_by_index+0x5e/0x80
[ 3400.062799][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3400.062799][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3400.062799][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3400.062799][   T73]      ipv6_add_addr+0x411/0x2000
[ 3400.062799][   T73]      inet6_addr_add+0x30e/0xa40
[ 3400.062799][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3400.062799][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3400.062799][   T73]      netlink_rcv_skb+0x130/0x360
[ 3400.062799][   T73]      netlink_unicast+0x449/0x710
[ 3400.062799][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3400.062799][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3400.062799][   T73]      ___sys_sendmsg+0xee/0x170
[ 3400.062799][   T73]      __sys_sendmsg+0xcd/0x170
[ 3400.062799][   T73]      do_syscall_64+0xc6/0x1e0
[ 3400.062799][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3400.062799][   T73] 
[ 3400.065013][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3400.065013][   T73]      netdev_get_by_index+0x5e/0x80
[ 3400.065013][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3400.065013][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3400.065013][   T73]      ip6_route_add+0x1c/0x140
[ 3400.065013][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3400.065013][   T73]      addrconf_add_dev+0xe2/0x170
[ 3400.065013][   T73]      inet6_addr_add+0x12f/0xa40
[ 3400.065013][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3400.065013][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3400.065013][   T73]      netlink_rcv_skb+0x130/0x360
[ 3400.065013][   T73]      netlink_unicast+0x449/0x710
[ 3400.065013][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3400.065013][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3400.065013][   T73]      ___sys_sendmsg+0xee/0x170
[ 3400.065013][   T73]      __sys_sendmsg+0xcd/0x170
[ 3400.065013][   T73]      do_syscall_64+0xc6/0x1e0
[ 3400.065013][   T73] 
[ 3400.067309][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3400.067309][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3400.067309][   T73]      ipv6_find_idev+0x102/0x170
[ 3400.067309][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3400.067309][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3400.067309][   T73]      netlink_rcv_skb+0x130/0x360
[ 3400.067309][   T73]      netlink_unicast+0x449/0x710
[ 3400.067309][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3400.067309][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3400.067309][   T73]      ___sys_sendmsg+0xee/0x170
[ 3400.067309][   T73]      __sys_sendmsg+0xcd/0x170
[ 3400.067309][   T73]      do_syscall_64+0xc6/0x1e0
[ 3400.067309][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3400.067309][   T73] 
[ 3400.069068][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3400.069068][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3400.069068][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3400.069068][   T73]      ipv6_find_idev+0x102/0x170
[ 3400.069068][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3400.069068][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3400.069068][   T73]      netlink_rcv_skb+0x130/0x360
[ 3400.069068][   T73]      netlink_unicast+0x449/0x710
[ 3400.069068][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3400.069068][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3400.069068][   T73]      ___sys_sendmsg+0xee/0x170
[ 3400.069068][   T73]      __sys_sendmsg+0xcd/0x170
[ 3400.069068][   T73]      do_syscall_64+0xc6/0x1e0
[ 3400.069068][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3400.069068][   T73] 
[ 3410.311751][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3410.312290][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3410.312290][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3410.312290][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3410.312290][   T73]      fib6_nh_init+0xa22/0x1580
[ 3410.312290][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3410.312290][   T73]      ip6_route_add+0x1c/0x140
[ 3410.312290][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3410.312290][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3410.312290][   T73]      netlink_rcv_skb+0x130/0x360
[ 3410.312290][   T73]      netlink_unicast+0x449/0x710
[ 3410.312290][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3410.312290][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3410.312290][   T73]      ___sys_sendmsg+0xee/0x170
[ 3410.312290][   T73]      __sys_sendmsg+0xcd/0x170
[ 3410.312290][   T73]      do_syscall_64+0xc6/0x1e0
[ 3410.312290][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3410.312290][   T73] 
[ 3410.314212][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3410.314212][   T73]      dst_init+0x84/0x4a0
[ 3410.314212][   T73]      dst_alloc+0x97/0x150
[ 3410.314212][   T73]      ip6_dst_alloc+0x23/0x90
[ 3410.314212][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3410.314212][   T73]      ip6_pol_route+0x56f/0x840
[ 3410.314212][   T73]      fib6_rule_lookup+0x456/0x630
[ 3410.314212][   T73]      ip6_route_input+0x59c/0xa50
[ 3410.314212][   T73]      ipv6_rcv+0x397/0x810
[ 3410.314212][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3410.314212][   T73]      process_backlog+0x101/0x620
[ 3410.314212][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3410.314212][   T73]      net_rx_action+0x495/0xbe0
[ 3410.314212][   T73]      __do_softirq+0x1b5/0x7f6
[ 3410.314212][   T73] 
[ 3410.315868][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3410.315868][   T73]      netdev_get_by_index+0x5e/0x80
[ 3410.315868][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3410.315868][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3410.315868][   T73]      ip6_route_add+0x1c/0x140
[ 3410.315868][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3410.315868][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3410.315868][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3410.315868][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3410.315868][   T73]      netlink_rcv_skb+0x130/0x360
[ 3410.315868][   T73]      netlink_unicast+0x449/0x710
[ 3410.315868][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3410.315868][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3410.315868][   T73]      ___sys_sendmsg+0xee/0x170
[ 3410.315868][   T73]      __sys_sendmsg+0xcd/0x170
[ 3410.315868][   T73]      do_syscall_64+0xc6/0x1e0
[ 3410.315868][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3410.315868][   T73] 
[ 3410.317889][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3410.317889][   T73]      netdev_get_by_index+0x5e/0x80
[ 3410.317889][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3410.317889][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3410.317889][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3410.317889][   T73]      ipv6_add_addr+0x411/0x2000
[ 3410.317889][   T73]      inet6_addr_add+0x30e/0xa40
[ 3410.317889][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3410.317889][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3410.317889][   T73]      netlink_rcv_skb+0x130/0x360
[ 3410.317889][   T73]      netlink_unicast+0x449/0x710
[ 3410.317889][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3410.317889][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3410.317889][   T73]      ___sys_sendmsg+0xee/0x170
[ 3410.317889][   T73]      __sys_sendmsg+0xcd/0x170
[ 3410.317889][   T73]      do_syscall_64+0xc6/0x1e0
[ 3410.317889][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3410.317889][   T73] 
[ 3410.319932][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3410.319932][   T73]      netdev_get_by_index+0x5e/0x80
[ 3410.319932][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3410.319932][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3410.319932][   T73]      ip6_route_add+0x1c/0x140
[ 3410.319932][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3410.319932][   T73]      addrconf_add_dev+0xe2/0x170
[ 3410.319932][   T73]      inet6_addr_add+0x12f/0xa40
[ 3410.319932][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3410.319932][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3410.319932][   T73]      netlink_rcv_skb+0x130/0x360
[ 3410.319932][   T73]      netlink_unicast+0x449/0x710
[ 3410.319932][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3410.319932][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3410.319932][   T73]      ___sys_sendmsg+0xee/0x170
[ 3410.319932][   T73]      __sys_sendmsg+0xcd/0x170
[ 3410.319932][   T73]      do_syscall_64+0xc6/0x1e0
[ 3410.319932][   T73] 
[ 3410.321912][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3410.321912][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3410.321912][   T73]      ipv6_find_idev+0x102/0x170
[ 3410.321912][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3410.321912][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3410.321912][   T73]      netlink_rcv_skb+0x130/0x360
[ 3410.321912][   T73]      netlink_unicast+0x449/0x710
[ 3410.321912][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3410.321912][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3410.321912][   T73]      ___sys_sendmsg+0xee/0x170
[ 3410.321912][   T73]      __sys_sendmsg+0xcd/0x170
[ 3410.321912][   T73]      do_syscall_64+0xc6/0x1e0
[ 3410.321912][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3410.321912][   T73] 
[ 3410.323456][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3410.323456][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3410.323456][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3410.323456][   T73]      ipv6_find_idev+0x102/0x170
[ 3410.323456][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3410.323456][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3410.323456][   T73]      netlink_rcv_skb+0x130/0x360
[ 3410.323456][   T73]      netlink_unicast+0x449/0x710
[ 3410.323456][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3410.323456][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3410.323456][   T73]      ___sys_sendmsg+0xee/0x170
[ 3410.323456][   T73]      __sys_sendmsg+0xcd/0x170
[ 3410.323456][   T73]      do_syscall_64+0xc6/0x1e0
[ 3410.323456][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3410.323456][   T73] 
[ 3410.325192][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3410.325478][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3410.325478][   T73]      netdev_get_by_index+0x5e/0x80
[ 3410.325478][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3410.325478][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3410.325478][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3410.325478][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3410.325478][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3410.325478][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3410.325478][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3410.325478][   T73]      addrconf_dad_begin+0x310/0x670
[ 3410.325478][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3410.325478][   T73]      process_one_work+0x84d/0x18a0
[ 3410.325478][   T73]      worker_thread+0x587/0xd30
[ 3410.325478][   T73]      kthread+0x28a/0x350
[ 3410.325478][   T73]      ret_from_fork+0x31/0x70
[ 3410.325478][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3410.325478][   T73] 
[ 3410.327434][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3410.327434][   T73]      netdev_get_by_index+0x5e/0x80
[ 3410.327434][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3410.327434][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3410.327434][   T73]      ip6_route_add+0x1c/0x140
[ 3410.327434][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3410.327434][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3410.327434][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3410.327434][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3410.327434][   T73]      netlink_rcv_skb+0x130/0x360
[ 3410.327434][   T73]      netlink_unicast+0x449/0x710
[ 3410.327434][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3410.327434][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3410.327434][   T73]      ___sys_sendmsg+0xee/0x170
[ 3410.327434][   T73]      __sys_sendmsg+0xcd/0x170
[ 3410.327434][   T73]      do_syscall_64+0xc6/0x1e0
[ 3410.327434][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3410.327434][   T73] 
[ 3410.329449][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3410.329449][   T73]      netdev_get_by_index+0x5e/0x80
[ 3410.329449][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3410.329449][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3410.329449][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3410.329449][   T73]      ipv6_add_addr+0x411/0x2000
[ 3410.329449][   T73]      inet6_addr_add+0x30e/0xa40
[ 3410.329449][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3410.329449][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3410.329449][   T73]      netlink_rcv_skb+0x130/0x360
[ 3410.329449][   T73]      netlink_unicast+0x449/0x710
[ 3410.329449][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3410.329449][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3410.329449][   T73]      ___sys_sendmsg+0xee/0x170
[ 3410.329449][   T73]      __sys_sendmsg+0xcd/0x170
[ 3410.329449][   T73]      do_syscall_64+0xc6/0x1e0
[ 3410.329449][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3410.329449][   T73] 
[ 3410.331458][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3410.331458][   T73]      netdev_get_by_index+0x5e/0x80
[ 3410.331458][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3410.331458][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3410.331458][   T73]      ip6_route_add+0x1c/0x140
[ 3410.331458][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3410.331458][   T73]      addrconf_add_dev+0xe2/0x170
[ 3410.331458][   T73]      inet6_addr_add+0x12f/0xa40
[ 3410.331458][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3410.331458][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3410.331458][   T73]      netlink_rcv_skb+0x130/0x360
[ 3410.331458][   T73]      netlink_unicast+0x449/0x710
[ 3410.331458][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3410.331458][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3410.331458][   T73]      ___sys_sendmsg+0xee/0x170
[ 3410.331458][   T73]      __sys_sendmsg+0xcd/0x170
[ 3410.331458][   T73]      do_syscall_64+0xc6/0x1e0
[ 3410.331458][   T73] 
[ 3410.333435][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3410.333435][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3410.333435][   T73]      ipv6_find_idev+0x102/0x170
[ 3410.333435][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3410.333435][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3410.333435][   T73]      netlink_rcv_skb+0x130/0x360
[ 3410.333435][   T73]      netlink_unicast+0x449/0x710
[ 3410.333435][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3410.333435][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3410.333435][   T73]      ___sys_sendmsg+0xee/0x170
[ 3410.333435][   T73]      __sys_sendmsg+0xcd/0x170
[ 3410.333435][   T73]      do_syscall_64+0xc6/0x1e0
[ 3410.333435][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3410.333435][   T73] 
[ 3410.334980][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3410.334980][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3410.334980][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3410.334980][   T73]      ipv6_find_idev+0x102/0x170
[ 3410.334980][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3410.334980][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3410.334980][   T73]      netlink_rcv_skb+0x130/0x360
[ 3410.334980][   T73]      netlink_unicast+0x449/0x710
[ 3410.334980][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3410.334980][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3410.334980][   T73]      ___sys_sendmsg+0xee/0x170
[ 3410.334980][   T73]      __sys_sendmsg+0xcd/0x170
[ 3410.334980][   T73]      do_syscall_64+0xc6/0x1e0
[ 3410.334980][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3410.334980][   T73] 
[ 3410.336694][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3410.336986][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3410.336986][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3410.336986][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3410.336986][   T73]      fib6_nh_init+0xa22/0x1580
[ 3410.336986][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3410.336986][   T73]      ip6_route_add+0x1c/0x140
[ 3410.336986][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3410.336986][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3410.336986][   T73]      netlink_rcv_skb+0x130/0x360
[ 3410.336986][   T73]      netlink_unicast+0x449/0x710
[ 3410.336986][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3410.336986][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3410.336986][   T73]      ___sys_sendmsg+0xee/0x170
[ 3410.336986][   T73]      __sys_sendmsg+0xcd/0x170
[ 3410.336986][   T73]      do_syscall_64+0xc6/0x1e0
[ 3410.336986][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3410.336986][   T73] 
[ 3410.339075][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3410.339075][   T73]      dst_init+0x84/0x4a0
[ 3410.339075][   T73]      dst_alloc+0x97/0x150
[ 3410.339075][   T73]      ip6_dst_alloc+0x23/0x90
[ 3410.339075][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3410.339075][   T73]      ip6_pol_route+0x56f/0x840
[ 3410.339075][   T73]      fib6_rule_lookup+0x456/0x630
[ 3410.339075][   T73]      ip6_route_input+0x59c/0xa50
[ 3410.339075][   T73]      ipv6_rcv+0x397/0x810
[ 3410.339075][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3410.339075][   T73]      process_backlog+0x101/0x620
[ 3410.339075][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3410.339075][   T73]      net_rx_action+0x495/0xbe0
[ 3410.339075][   T73]      __do_softirq+0x1b5/0x7f6
[ 3410.339075][   T73] 
[ 3410.340900][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3410.340900][   T73]      netdev_get_by_index+0x5e/0x80
[ 3410.340900][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3410.340900][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3410.340900][   T73]      ip6_route_add+0x1c/0x140
[ 3410.340900][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3410.340900][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3410.340900][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3410.340900][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3410.340900][   T73]      netlink_rcv_skb+0x130/0x360
[ 3410.340900][   T73]      netlink_unicast+0x449/0x710
[ 3410.340900][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3410.340900][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3410.340900][   T73]      ___sys_sendmsg+0xee/0x170
[ 3410.340900][   T73]      __sys_sendmsg+0xcd/0x170
[ 3410.340900][   T73]      do_syscall_64+0xc6/0x1e0
[ 3410.340900][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3410.340900][   T73] 
[ 3410.343178][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3410.343178][   T73]      netdev_get_by_index+0x5e/0x80
[ 3410.343178][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3410.343178][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3410.343178][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3410.343178][   T73]      ipv6_add_addr+0x411/0x2000
[ 3410.343178][   T73]      inet6_addr_add+0x30e/0xa40
[ 3410.343178][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3410.343178][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3410.343178][   T73]      netlink_rcv_skb+0x130/0x360
[ 3410.343178][   T73]      netlink_unicast+0x449/0x710
[ 3410.343178][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3410.343178][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3410.343178][   T73]      ___sys_sendmsg+0xee/0x170
[ 3410.343178][   T73]      __sys_sendmsg+0xcd/0x170
[ 3410.343178][   T73]      do_syscall_64+0xc6/0x1e0
[ 3410.343178][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3410.343178][   T73] 
[ 3410.345491][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3410.345491][   T73]      netdev_get_by_index+0x5e/0x80
[ 3410.345491][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3410.345491][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3410.345491][   T73]      ip6_route_add+0x1c/0x140
[ 3410.345491][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3410.345491][   T73]      addrconf_add_dev+0xe2/0x170
[ 3410.345491][   T73]      inet6_addr_add+0x12f/0xa40
[ 3410.345491][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3410.345491][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3410.345491][   T73]      netlink_rcv_skb+0x130/0x360
[ 3410.345491][   T73]      netlink_unicast+0x449/0x710
[ 3410.345491][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3410.345491][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3410.345491][   T73]      ___sys_sendmsg+0xee/0x170
[ 3410.345491][   T73]      __sys_sendmsg+0xcd/0x170
[ 3410.345491][   T73]      do_syscall_64+0xc6/0x1e0
[ 3410.345491][   T73] 
[ 3410.347669][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3410.347669][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3410.347669][   T73]      ipv6_find_idev+0x102/0x170
[ 3410.347669][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3410.347669][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3410.347669][   T73]      netlink_rcv_skb+0x130/0x360
[ 3410.347669][   T73]      netlink_unicast+0x449/0x710
[ 3410.347669][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3410.347669][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3410.347669][   T73]      ___sys_sendmsg+0xee/0x170
[ 3410.347669][   T73]      __sys_sendmsg+0xcd/0x170
[ 3410.347669][   T73]      do_syscall_64+0xc6/0x1e0
[ 3410.347669][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3410.347669][   T73] 
[ 3410.349423][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3410.349423][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3410.349423][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3410.349423][   T73]      ipv6_find_idev+0x102/0x170
[ 3410.349423][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3410.349423][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3410.349423][   T73]      netlink_rcv_skb+0x130/0x360
[ 3410.349423][   T73]      netlink_unicast+0x449/0x710
[ 3410.349423][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3410.349423][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3410.349423][   T73]      ___sys_sendmsg+0xee/0x170
[ 3410.349423][   T73]      __sys_sendmsg+0xcd/0x170
[ 3410.349423][   T73]      do_syscall_64+0xc6/0x1e0
[ 3410.349423][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3410.349423][   T73] 
[ 3410.351378][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3410.351670][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3410.351670][   T73]      netdev_get_by_index+0x5e/0x80
[ 3410.351670][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3410.351670][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3410.351670][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3410.351670][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3410.351670][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3410.351670][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3410.351670][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3410.351670][   T73]      addrconf_dad_begin+0x310/0x670
[ 3410.351670][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3410.351670][   T73]      process_one_work+0x84d/0x18a0
[ 3410.351670][   T73]      worker_thread+0x587/0xd30
[ 3410.351670][   T73]      kthread+0x28a/0x350
[ 3410.351670][   T73]      ret_from_fork+0x31/0x70
[ 3410.351670][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3410.351670][   T73] 
[ 3410.353844][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3410.353844][   T73]      netdev_get_by_index+0x5e/0x80
[ 3410.353844][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3410.353844][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3410.353844][   T73]      ip6_route_add+0x1c/0x140
[ 3410.353844][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3410.353844][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3410.353844][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3410.353844][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3410.353844][   T73]      netlink_rcv_skb+0x130/0x360
[ 3410.353844][   T73]      netlink_unicast+0x449/0x710
[ 3410.353844][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3410.353844][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3410.353844][   T73]      ___sys_sendmsg+0xee/0x170
[ 3410.353844][   T73]      __sys_sendmsg+0xcd/0x170
[ 3410.353844][   T73]      do_syscall_64+0xc6/0x1e0
[ 3410.353844][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3410.353844][   T73] 
[ 3410.356165][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3410.356165][   T73]      netdev_get_by_index+0x5e/0x80
[ 3410.356165][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3410.356165][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3410.356165][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3410.356165][   T73]      ipv6_add_addr+0x411/0x2000
[ 3410.356165][   T73]      inet6_addr_add+0x30e/0xa40
[ 3410.356165][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3410.356165][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3410.356165][   T73]      netlink_rcv_skb+0x130/0x360
[ 3410.356165][   T73]      netlink_unicast+0x449/0x710
[ 3410.356165][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3410.356165][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3410.356165][   T73]      ___sys_sendmsg+0xee/0x170
[ 3410.356165][   T73]      __sys_sendmsg+0xcd/0x170
[ 3410.356165][   T73]      do_syscall_64+0xc6/0x1e0
[ 3410.356165][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3410.356165][   T73] 
[ 3410.358356][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3410.358356][   T73]      netdev_get_by_index+0x5e/0x80
[ 3410.358356][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3410.358356][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3410.358356][   T73]      ip6_route_add+0x1c/0x140
[ 3410.358356][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3410.358356][   T73]      addrconf_add_dev+0xe2/0x170
[ 3410.358356][   T73]      inet6_addr_add+0x12f/0xa40
[ 3410.358356][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3410.358356][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3410.358356][   T73]      netlink_rcv_skb+0x130/0x360
[ 3410.358356][   T73]      netlink_unicast+0x449/0x710
[ 3410.358356][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3410.358356][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3410.358356][   T73]      ___sys_sendmsg+0xee/0x170
[ 3410.358356][   T73]      __sys_sendmsg+0xcd/0x170
[ 3410.358356][   T73]      do_syscall_64+0xc6/0x1e0
[ 3410.358356][   T73] 
[ 3410.360577][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3410.360577][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3410.360577][   T73]      ipv6_find_idev+0x102/0x170
[ 3410.360577][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3410.360577][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3410.360577][   T73]      netlink_rcv_skb+0x130/0x360
[ 3410.360577][   T73]      netlink_unicast+0x449/0x710
[ 3410.360577][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3410.360577][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3410.360577][   T73]      ___sys_sendmsg+0xee/0x170
[ 3410.360577][   T73]      __sys_sendmsg+0xcd/0x170
[ 3410.360577][   T73]      do_syscall_64+0xc6/0x1e0
[ 3410.360577][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3410.360577][   T73] 
[ 3410.362311][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3410.362311][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3410.362311][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3410.362311][   T73]      ipv6_find_idev+0x102/0x170
[ 3410.362311][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3410.362311][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3410.362311][   T73]      netlink_rcv_skb+0x130/0x360
[ 3410.362311][   T73]      netlink_unicast+0x449/0x710
[ 3410.362311][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3410.362311][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3410.362311][   T73]      ___sys_sendmsg+0xee/0x170
[ 3410.362311][   T73]      __sys_sendmsg+0xcd/0x170
[ 3410.362311][   T73]      do_syscall_64+0xc6/0x1e0
[ 3410.362311][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3410.362311][   T73] 
[ 3420.599798][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3420.600314][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3420.600314][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3420.600314][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3420.600314][   T73]      fib6_nh_init+0xa22/0x1580
[ 3420.600314][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3420.600314][   T73]      ip6_route_add+0x1c/0x140
[ 3420.600314][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3420.600314][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3420.600314][   T73]      netlink_rcv_skb+0x130/0x360
[ 3420.600314][   T73]      netlink_unicast+0x449/0x710
[ 3420.600314][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3420.600314][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3420.600314][   T73]      ___sys_sendmsg+0xee/0x170
[ 3420.600314][   T73]      __sys_sendmsg+0xcd/0x170
[ 3420.600314][   T73]      do_syscall_64+0xc6/0x1e0
[ 3420.600314][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3420.600314][   T73] 
[ 3420.602223][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3420.602223][   T73]      dst_init+0x84/0x4a0
[ 3420.602223][   T73]      dst_alloc+0x97/0x150
[ 3420.602223][   T73]      ip6_dst_alloc+0x23/0x90
[ 3420.602223][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3420.602223][   T73]      ip6_pol_route+0x56f/0x840
[ 3420.602223][   T73]      fib6_rule_lookup+0x456/0x630
[ 3420.602223][   T73]      ip6_route_input+0x59c/0xa50
[ 3420.602223][   T73]      ipv6_rcv+0x397/0x810
[ 3420.602223][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3420.602223][   T73]      process_backlog+0x101/0x620
[ 3420.602223][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3420.602223][   T73]      net_rx_action+0x495/0xbe0
[ 3420.602223][   T73]      __do_softirq+0x1b5/0x7f6
[ 3420.602223][   T73] 
[ 3420.603876][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3420.603876][   T73]      netdev_get_by_index+0x5e/0x80
[ 3420.603876][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3420.603876][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3420.603876][   T73]      ip6_route_add+0x1c/0x140
[ 3420.603876][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3420.603876][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3420.603876][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3420.603876][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3420.603876][   T73]      netlink_rcv_skb+0x130/0x360
[ 3420.603876][   T73]      netlink_unicast+0x449/0x710
[ 3420.603876][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3420.603876][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3420.603876][   T73]      ___sys_sendmsg+0xee/0x170
[ 3420.603876][   T73]      __sys_sendmsg+0xcd/0x170
[ 3420.603876][   T73]      do_syscall_64+0xc6/0x1e0
[ 3420.603876][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3420.603876][   T73] 
[ 3420.605907][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3420.605907][   T73]      netdev_get_by_index+0x5e/0x80
[ 3420.605907][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3420.605907][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3420.605907][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3420.605907][   T73]      ipv6_add_addr+0x411/0x2000
[ 3420.605907][   T73]      inet6_addr_add+0x30e/0xa40
[ 3420.605907][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3420.605907][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3420.605907][   T73]      netlink_rcv_skb+0x130/0x360
[ 3420.605907][   T73]      netlink_unicast+0x449/0x710
[ 3420.605907][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3420.605907][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3420.605907][   T73]      ___sys_sendmsg+0xee/0x170
[ 3420.605907][   T73]      __sys_sendmsg+0xcd/0x170
[ 3420.605907][   T73]      do_syscall_64+0xc6/0x1e0
[ 3420.605907][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3420.605907][   T73] 
[ 3420.607919][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3420.607919][   T73]      netdev_get_by_index+0x5e/0x80
[ 3420.607919][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3420.607919][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3420.607919][   T73]      ip6_route_add+0x1c/0x140
[ 3420.607919][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3420.607919][   T73]      addrconf_add_dev+0xe2/0x170
[ 3420.607919][   T73]      inet6_addr_add+0x12f/0xa40
[ 3420.607919][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3420.607919][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3420.607919][   T73]      netlink_rcv_skb+0x130/0x360
[ 3420.607919][   T73]      netlink_unicast+0x449/0x710
[ 3420.607919][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3420.607919][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3420.607919][   T73]      ___sys_sendmsg+0xee/0x170
[ 3420.607919][   T73]      __sys_sendmsg+0xcd/0x170
[ 3420.607919][   T73]      do_syscall_64+0xc6/0x1e0
[ 3420.607919][   T73] 
[ 3420.609905][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3420.609905][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3420.609905][   T73]      ipv6_find_idev+0x102/0x170
[ 3420.609905][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3420.609905][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3420.609905][   T73]      netlink_rcv_skb+0x130/0x360
[ 3420.609905][   T73]      netlink_unicast+0x449/0x710
[ 3420.609905][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3420.609905][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3420.609905][   T73]      ___sys_sendmsg+0xee/0x170
[ 3420.609905][   T73]      __sys_sendmsg+0xcd/0x170
[ 3420.609905][   T73]      do_syscall_64+0xc6/0x1e0
[ 3420.609905][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3420.609905][   T73] 
[ 3420.611451][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3420.611451][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3420.611451][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3420.611451][   T73]      ipv6_find_idev+0x102/0x170
[ 3420.611451][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3420.611451][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3420.611451][   T73]      netlink_rcv_skb+0x130/0x360
[ 3420.611451][   T73]      netlink_unicast+0x449/0x710
[ 3420.611451][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3420.611451][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3420.611451][   T73]      ___sys_sendmsg+0xee/0x170
[ 3420.611451][   T73]      __sys_sendmsg+0xcd/0x170
[ 3420.611451][   T73]      do_syscall_64+0xc6/0x1e0
[ 3420.611451][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3420.611451][   T73] 
[ 3420.613182][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3420.613472][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3420.613472][   T73]      netdev_get_by_index+0x5e/0x80
[ 3420.613472][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3420.613472][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3420.613472][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3420.613472][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3420.613472][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3420.613472][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3420.613472][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3420.613472][   T73]      addrconf_dad_begin+0x310/0x670
[ 3420.613472][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3420.613472][   T73]      process_one_work+0x84d/0x18a0
[ 3420.613472][   T73]      worker_thread+0x587/0xd30
[ 3420.613472][   T73]      kthread+0x28a/0x350
[ 3420.613472][   T73]      ret_from_fork+0x31/0x70
[ 3420.613472][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3420.613472][   T73] 
[ 3420.615396][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3420.615396][   T73]      netdev_get_by_index+0x5e/0x80
[ 3420.615396][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3420.615396][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3420.615396][   T73]      ip6_route_add+0x1c/0x140
[ 3420.615396][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3420.615396][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3420.615396][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3420.615396][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3420.615396][   T73]      netlink_rcv_skb+0x130/0x360
[ 3420.615396][   T73]      netlink_unicast+0x449/0x710
[ 3420.615396][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3420.615396][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3420.615396][   T73]      ___sys_sendmsg+0xee/0x170
[ 3420.615396][   T73]      __sys_sendmsg+0xcd/0x170
[ 3420.615396][   T73]      do_syscall_64+0xc6/0x1e0
[ 3420.615396][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3420.615396][   T73] 
[ 3420.617404][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3420.617404][   T73]      netdev_get_by_index+0x5e/0x80
[ 3420.617404][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3420.617404][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3420.617404][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3420.617404][   T73]      ipv6_add_addr+0x411/0x2000
[ 3420.617404][   T73]      inet6_addr_add+0x30e/0xa40
[ 3420.617404][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3420.617404][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3420.617404][   T73]      netlink_rcv_skb+0x130/0x360
[ 3420.617404][   T73]      netlink_unicast+0x449/0x710
[ 3420.617404][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3420.617404][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3420.617404][   T73]      ___sys_sendmsg+0xee/0x170
[ 3420.617404][   T73]      __sys_sendmsg+0xcd/0x170
[ 3420.617404][   T73]      do_syscall_64+0xc6/0x1e0
[ 3420.617404][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3420.617404][   T73] 
[ 3420.619430][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3420.619430][   T73]      netdev_get_by_index+0x5e/0x80
[ 3420.619430][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3420.619430][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3420.619430][   T73]      ip6_route_add+0x1c/0x140
[ 3420.619430][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3420.619430][   T73]      addrconf_add_dev+0xe2/0x170
[ 3420.619430][   T73]      inet6_addr_add+0x12f/0xa40
[ 3420.619430][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3420.619430][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3420.619430][   T73]      netlink_rcv_skb+0x130/0x360
[ 3420.619430][   T73]      netlink_unicast+0x449/0x710
[ 3420.619430][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3420.619430][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3420.619430][   T73]      ___sys_sendmsg+0xee/0x170
[ 3420.619430][   T73]      __sys_sendmsg+0xcd/0x170
[ 3420.619430][   T73]      do_syscall_64+0xc6/0x1e0
[ 3420.619430][   T73] 
[ 3420.621397][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3420.621397][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3420.621397][   T73]      ipv6_find_idev+0x102/0x170
[ 3420.621397][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3420.621397][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3420.621397][   T73]      netlink_rcv_skb+0x130/0x360
[ 3420.621397][   T73]      netlink_unicast+0x449/0x710
[ 3420.621397][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3420.621397][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3420.621397][   T73]      ___sys_sendmsg+0xee/0x170
[ 3420.621397][   T73]      __sys_sendmsg+0xcd/0x170
[ 3420.621397][   T73]      do_syscall_64+0xc6/0x1e0
[ 3420.621397][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3420.621397][   T73] 
[ 3420.622949][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3420.622949][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3420.622949][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3420.622949][   T73]      ipv6_find_idev+0x102/0x170
[ 3420.622949][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3420.622949][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3420.622949][   T73]      netlink_rcv_skb+0x130/0x360
[ 3420.622949][   T73]      netlink_unicast+0x449/0x710
[ 3420.622949][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3420.622949][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3420.622949][   T73]      ___sys_sendmsg+0xee/0x170
[ 3420.622949][   T73]      __sys_sendmsg+0xcd/0x170
[ 3420.622949][   T73]      do_syscall_64+0xc6/0x1e0
[ 3420.622949][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3420.622949][   T73] 
[ 3420.624656][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3420.624943][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3420.624943][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3420.624943][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3420.624943][   T73]      fib6_nh_init+0xa22/0x1580
[ 3420.624943][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3420.624943][   T73]      ip6_route_add+0x1c/0x140
[ 3420.624943][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3420.624943][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3420.624943][   T73]      netlink_rcv_skb+0x130/0x360
[ 3420.624943][   T73]      netlink_unicast+0x449/0x710
[ 3420.624943][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3420.624943][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3420.624943][   T73]      ___sys_sendmsg+0xee/0x170
[ 3420.624943][   T73]      __sys_sendmsg+0xcd/0x170
[ 3420.624943][   T73]      do_syscall_64+0xc6/0x1e0
[ 3420.624943][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3420.624943][   T73] 
[ 3420.627019][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3420.627019][   T73]      dst_init+0x84/0x4a0
[ 3420.627019][   T73]      dst_alloc+0x97/0x150
[ 3420.627019][   T73]      ip6_dst_alloc+0x23/0x90
[ 3420.627019][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3420.627019][   T73]      ip6_pol_route+0x56f/0x840
[ 3420.627019][   T73]      fib6_rule_lookup+0x456/0x630
[ 3420.627019][   T73]      ip6_route_input+0x59c/0xa50
[ 3420.627019][   T73]      ipv6_rcv+0x397/0x810
[ 3420.627019][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3420.627019][   T73]      process_backlog+0x101/0x620
[ 3420.627019][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3420.627019][   T73]      net_rx_action+0x495/0xbe0
[ 3420.627019][   T73]      __do_softirq+0x1b5/0x7f6
[ 3420.627019][   T73] 
[ 3420.628853][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3420.628853][   T73]      netdev_get_by_index+0x5e/0x80
[ 3420.628853][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3420.628853][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3420.628853][   T73]      ip6_route_add+0x1c/0x140
[ 3420.628853][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3420.628853][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3420.628853][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3420.628853][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3420.628853][   T73]      netlink_rcv_skb+0x130/0x360
[ 3420.628853][   T73]      netlink_unicast+0x449/0x710
[ 3420.628853][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3420.628853][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3420.628853][   T73]      ___sys_sendmsg+0xee/0x170
[ 3420.628853][   T73]      __sys_sendmsg+0xcd/0x170
[ 3420.628853][   T73]      do_syscall_64+0xc6/0x1e0
[ 3420.628853][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3420.628853][   T73] 
[ 3420.631174][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3420.631174][   T73]      netdev_get_by_index+0x5e/0x80
[ 3420.631174][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3420.631174][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3420.631174][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3420.631174][   T73]      ipv6_add_addr+0x411/0x2000
[ 3420.631174][   T73]      inet6_addr_add+0x30e/0xa40
[ 3420.631174][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3420.631174][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3420.631174][   T73]      netlink_rcv_skb+0x130/0x360
[ 3420.631174][   T73]      netlink_unicast+0x449/0x710
[ 3420.631174][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3420.631174][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3420.631174][   T73]      ___sys_sendmsg+0xee/0x170
[ 3420.631174][   T73]      __sys_sendmsg+0xcd/0x170
[ 3420.631174][   T73]      do_syscall_64+0xc6/0x1e0
[ 3420.631174][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3420.631174][   T73] 
[ 3420.633432][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3420.633432][   T73]      netdev_get_by_index+0x5e/0x80
[ 3420.633432][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3420.633432][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3420.633432][   T73]      ip6_route_add+0x1c/0x140
[ 3420.633432][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3420.633432][   T73]      addrconf_add_dev+0xe2/0x170
[ 3420.633432][   T73]      inet6_addr_add+0x12f/0xa40
[ 3420.633432][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3420.633432][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3420.633432][   T73]      netlink_rcv_skb+0x130/0x360
[ 3420.633432][   T73]      netlink_unicast+0x449/0x710
[ 3420.633432][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3420.633432][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3420.633432][   T73]      ___sys_sendmsg+0xee/0x170
[ 3420.633432][   T73]      __sys_sendmsg+0xcd/0x170
[ 3420.633432][   T73]      do_syscall_64+0xc6/0x1e0
[ 3420.633432][   T73] 
[ 3420.635593][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3420.635593][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3420.635593][   T73]      ipv6_find_idev+0x102/0x170
[ 3420.635593][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3420.635593][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3420.635593][   T73]      netlink_rcv_skb+0x130/0x360
[ 3420.635593][   T73]      netlink_unicast+0x449/0x710
[ 3420.635593][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3420.635593][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3420.635593][   T73]      ___sys_sendmsg+0xee/0x170
[ 3420.635593][   T73]      __sys_sendmsg+0xcd/0x170
[ 3420.635593][   T73]      do_syscall_64+0xc6/0x1e0
[ 3420.635593][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3420.635593][   T73] 
[ 3420.637334][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3420.637334][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3420.637334][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3420.637334][   T73]      ipv6_find_idev+0x102/0x170
[ 3420.637334][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3420.637334][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3420.637334][   T73]      netlink_rcv_skb+0x130/0x360
[ 3420.637334][   T73]      netlink_unicast+0x449/0x710
[ 3420.637334][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3420.637334][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3420.637334][   T73]      ___sys_sendmsg+0xee/0x170
[ 3420.637334][   T73]      __sys_sendmsg+0xcd/0x170
[ 3420.637334][   T73]      do_syscall_64+0xc6/0x1e0
[ 3420.637334][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3420.637334][   T73] 
[ 3420.639344][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3420.639619][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3420.639619][   T73]      netdev_get_by_index+0x5e/0x80
[ 3420.639619][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3420.639619][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3420.639619][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3420.639619][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3420.639619][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3420.639619][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3420.639619][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3420.639619][   T73]      addrconf_dad_begin+0x310/0x670
[ 3420.639619][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3420.639619][   T73]      process_one_work+0x84d/0x18a0
[ 3420.639619][   T73]      worker_thread+0x587/0xd30
[ 3420.639619][   T73]      kthread+0x28a/0x350
[ 3420.639619][   T73]      ret_from_fork+0x31/0x70
[ 3420.639619][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3420.639619][   T73] 
[ 3420.641790][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3420.641790][   T73]      netdev_get_by_index+0x5e/0x80
[ 3420.641790][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3420.641790][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3420.641790][   T73]      ip6_route_add+0x1c/0x140
[ 3420.641790][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3420.641790][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3420.641790][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3420.641790][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3420.641790][   T73]      netlink_rcv_skb+0x130/0x360
[ 3420.641790][   T73]      netlink_unicast+0x449/0x710
[ 3420.641790][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3420.641790][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3420.641790][   T73]      ___sys_sendmsg+0xee/0x170
[ 3420.641790][   T73]      __sys_sendmsg+0xcd/0x170
[ 3420.641790][   T73]      do_syscall_64+0xc6/0x1e0
[ 3420.641790][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3420.641790][   T73] 
[ 3420.644032][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3420.644032][   T73]      netdev_get_by_index+0x5e/0x80
[ 3420.644032][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3420.644032][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3420.644032][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3420.644032][   T73]      ipv6_add_addr+0x411/0x2000
[ 3420.644032][   T73]      inet6_addr_add+0x30e/0xa40
[ 3420.644032][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3420.644032][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3420.644032][   T73]      netlink_rcv_skb+0x130/0x360
[ 3420.644032][   T73]      netlink_unicast+0x449/0x710
[ 3420.644032][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3420.644032][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3420.644032][   T73]      ___sys_sendmsg+0xee/0x170
[ 3420.644032][   T73]      __sys_sendmsg+0xcd/0x170
[ 3420.644032][   T73]      do_syscall_64+0xc6/0x1e0
[ 3420.644032][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3420.644032][   T73] 
[ 3420.646220][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3420.646220][   T73]      netdev_get_by_index+0x5e/0x80
[ 3420.646220][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3420.646220][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3420.646220][   T73]      ip6_route_add+0x1c/0x140
[ 3420.646220][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3420.646220][   T73]      addrconf_add_dev+0xe2/0x170
[ 3420.646220][   T73]      inet6_addr_add+0x12f/0xa40
[ 3420.646220][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3420.646220][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3420.646220][   T73]      netlink_rcv_skb+0x130/0x360
[ 3420.646220][   T73]      netlink_unicast+0x449/0x710
[ 3420.646220][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3420.646220][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3420.646220][   T73]      ___sys_sendmsg+0xee/0x170
[ 3420.646220][   T73]      __sys_sendmsg+0xcd/0x170
[ 3420.646220][   T73]      do_syscall_64+0xc6/0x1e0
[ 3420.646220][   T73] 
[ 3420.648496][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3420.648496][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3420.648496][   T73]      ipv6_find_idev+0x102/0x170
[ 3420.648496][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3420.648496][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3420.648496][   T73]      netlink_rcv_skb+0x130/0x360
[ 3420.648496][   T73]      netlink_unicast+0x449/0x710
[ 3420.648496][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3420.648496][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3420.648496][   T73]      ___sys_sendmsg+0xee/0x170
[ 3420.648496][   T73]      __sys_sendmsg+0xcd/0x170
[ 3420.648496][   T73]      do_syscall_64+0xc6/0x1e0
[ 3420.648496][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3420.648496][   T73] 
[ 3420.650231][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3420.650231][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3420.650231][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3420.650231][   T73]      ipv6_find_idev+0x102/0x170
[ 3420.650231][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3420.650231][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3420.650231][   T73]      netlink_rcv_skb+0x130/0x360
[ 3420.650231][   T73]      netlink_unicast+0x449/0x710
[ 3420.650231][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3420.650231][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3420.650231][   T73]      ___sys_sendmsg+0xee/0x170
[ 3420.650231][   T73]      __sys_sendmsg+0xcd/0x170
[ 3420.650231][   T73]      do_syscall_64+0xc6/0x1e0
[ 3420.650231][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3420.650231][   T73] 
[ 3430.887798][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3430.888303][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3430.888303][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3430.888303][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3430.888303][   T73]      fib6_nh_init+0xa22/0x1580
[ 3430.888303][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3430.888303][   T73]      ip6_route_add+0x1c/0x140
[ 3430.888303][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3430.888303][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3430.888303][   T73]      netlink_rcv_skb+0x130/0x360
[ 3430.888303][   T73]      netlink_unicast+0x449/0x710
[ 3430.888303][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3430.888303][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3430.888303][   T73]      ___sys_sendmsg+0xee/0x170
[ 3430.888303][   T73]      __sys_sendmsg+0xcd/0x170
[ 3430.888303][   T73]      do_syscall_64+0xc6/0x1e0
[ 3430.888303][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3430.888303][   T73] 
[ 3430.890257][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3430.890257][   T73]      dst_init+0x84/0x4a0
[ 3430.890257][   T73]      dst_alloc+0x97/0x150
[ 3430.890257][   T73]      ip6_dst_alloc+0x23/0x90
[ 3430.890257][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3430.890257][   T73]      ip6_pol_route+0x56f/0x840
[ 3430.890257][   T73]      fib6_rule_lookup+0x456/0x630
[ 3430.890257][   T73]      ip6_route_input+0x59c/0xa50
[ 3430.890257][   T73]      ipv6_rcv+0x397/0x810
[ 3430.890257][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3430.890257][   T73]      process_backlog+0x101/0x620
[ 3430.890257][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3430.890257][   T73]      net_rx_action+0x495/0xbe0
[ 3430.890257][   T73]      __do_softirq+0x1b5/0x7f6
[ 3430.890257][   T73] 
[ 3430.891920][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3430.891920][   T73]      netdev_get_by_index+0x5e/0x80
[ 3430.891920][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3430.891920][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3430.891920][   T73]      ip6_route_add+0x1c/0x140
[ 3430.891920][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3430.891920][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3430.891920][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3430.891920][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3430.891920][   T73]      netlink_rcv_skb+0x130/0x360
[ 3430.891920][   T73]      netlink_unicast+0x449/0x710
[ 3430.891920][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3430.891920][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3430.891920][   T73]      ___sys_sendmsg+0xee/0x170
[ 3430.891920][   T73]      __sys_sendmsg+0xcd/0x170
[ 3430.891920][   T73]      do_syscall_64+0xc6/0x1e0
[ 3430.891920][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3430.891920][   T73] 
[ 3430.893940][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3430.893940][   T73]      netdev_get_by_index+0x5e/0x80
[ 3430.893940][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3430.893940][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3430.893940][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3430.893940][   T73]      ipv6_add_addr+0x411/0x2000
[ 3430.893940][   T73]      inet6_addr_add+0x30e/0xa40
[ 3430.893940][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3430.893940][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3430.893940][   T73]      netlink_rcv_skb+0x130/0x360
[ 3430.893940][   T73]      netlink_unicast+0x449/0x710
[ 3430.893940][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3430.893940][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3430.893940][   T73]      ___sys_sendmsg+0xee/0x170
[ 3430.893940][   T73]      __sys_sendmsg+0xcd/0x170
[ 3430.893940][   T73]      do_syscall_64+0xc6/0x1e0
[ 3430.893940][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3430.893940][   T73] 
[ 3430.895950][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3430.895950][   T73]      netdev_get_by_index+0x5e/0x80
[ 3430.895950][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3430.895950][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3430.895950][   T73]      ip6_route_add+0x1c/0x140
[ 3430.895950][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3430.895950][   T73]      addrconf_add_dev+0xe2/0x170
[ 3430.895950][   T73]      inet6_addr_add+0x12f/0xa40
[ 3430.895950][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3430.895950][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3430.895950][   T73]      netlink_rcv_skb+0x130/0x360
[ 3430.895950][   T73]      netlink_unicast+0x449/0x710
[ 3430.895950][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3430.895950][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3430.895950][   T73]      ___sys_sendmsg+0xee/0x170
[ 3430.895950][   T73]      __sys_sendmsg+0xcd/0x170
[ 3430.895950][   T73]      do_syscall_64+0xc6/0x1e0
[ 3430.895950][   T73] 
[ 3430.897921][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3430.897921][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3430.897921][   T73]      ipv6_find_idev+0x102/0x170
[ 3430.897921][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3430.897921][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3430.897921][   T73]      netlink_rcv_skb+0x130/0x360
[ 3430.897921][   T73]      netlink_unicast+0x449/0x710
[ 3430.897921][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3430.897921][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3430.897921][   T73]      ___sys_sendmsg+0xee/0x170
[ 3430.897921][   T73]      __sys_sendmsg+0xcd/0x170
[ 3430.897921][   T73]      do_syscall_64+0xc6/0x1e0
[ 3430.897921][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3430.897921][   T73] 
[ 3430.899487][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3430.899487][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3430.899487][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3430.899487][   T73]      ipv6_find_idev+0x102/0x170
[ 3430.899487][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3430.899487][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3430.899487][   T73]      netlink_rcv_skb+0x130/0x360
[ 3430.899487][   T73]      netlink_unicast+0x449/0x710
[ 3430.899487][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3430.899487][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3430.899487][   T73]      ___sys_sendmsg+0xee/0x170
[ 3430.899487][   T73]      __sys_sendmsg+0xcd/0x170
[ 3430.899487][   T73]      do_syscall_64+0xc6/0x1e0
[ 3430.899487][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3430.899487][   T73] 
[ 3430.901211][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3430.901499][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3430.901499][   T73]      netdev_get_by_index+0x5e/0x80
[ 3430.901499][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3430.901499][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3430.901499][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3430.901499][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3430.901499][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3430.901499][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3430.901499][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3430.901499][   T73]      addrconf_dad_begin+0x310/0x670
[ 3430.901499][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3430.901499][   T73]      process_one_work+0x84d/0x18a0
[ 3430.901499][   T73]      worker_thread+0x587/0xd30
[ 3430.901499][   T73]      kthread+0x28a/0x350
[ 3430.901499][   T73]      ret_from_fork+0x31/0x70
[ 3430.901499][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3430.901499][   T73] 
[ 3430.903427][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3430.903427][   T73]      netdev_get_by_index+0x5e/0x80
[ 3430.903427][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3430.903427][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3430.903427][   T73]      ip6_route_add+0x1c/0x140
[ 3430.903427][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3430.903427][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3430.903427][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3430.903427][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3430.903427][   T73]      netlink_rcv_skb+0x130/0x360
[ 3430.903427][   T73]      netlink_unicast+0x449/0x710
[ 3430.903427][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3430.903427][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3430.903427][   T73]      ___sys_sendmsg+0xee/0x170
[ 3430.903427][   T73]      __sys_sendmsg+0xcd/0x170
[ 3430.903427][   T73]      do_syscall_64+0xc6/0x1e0
[ 3430.903427][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3430.903427][   T73] 
[ 3430.905439][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3430.905439][   T73]      netdev_get_by_index+0x5e/0x80
[ 3430.905439][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3430.905439][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3430.905439][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3430.905439][   T73]      ipv6_add_addr+0x411/0x2000
[ 3430.905439][   T73]      inet6_addr_add+0x30e/0xa40
[ 3430.905439][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3430.905439][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3430.905439][   T73]      netlink_rcv_skb+0x130/0x360
[ 3430.905439][   T73]      netlink_unicast+0x449/0x710
[ 3430.905439][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3430.905439][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3430.905439][   T73]      ___sys_sendmsg+0xee/0x170
[ 3430.905439][   T73]      __sys_sendmsg+0xcd/0x170
[ 3430.905439][   T73]      do_syscall_64+0xc6/0x1e0
[ 3430.905439][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3430.905439][   T73] 
[ 3430.907447][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3430.907447][   T73]      netdev_get_by_index+0x5e/0x80
[ 3430.907447][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3430.907447][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3430.907447][   T73]      ip6_route_add+0x1c/0x140
[ 3430.907447][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3430.907447][   T73]      addrconf_add_dev+0xe2/0x170
[ 3430.907447][   T73]      inet6_addr_add+0x12f/0xa40
[ 3430.907447][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3430.907447][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3430.907447][   T73]      netlink_rcv_skb+0x130/0x360
[ 3430.907447][   T73]      netlink_unicast+0x449/0x710
[ 3430.907447][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3430.907447][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3430.907447][   T73]      ___sys_sendmsg+0xee/0x170
[ 3430.907447][   T73]      __sys_sendmsg+0xcd/0x170
[ 3430.907447][   T73]      do_syscall_64+0xc6/0x1e0
[ 3430.907447][   T73] 
[ 3430.909440][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3430.909440][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3430.909440][   T73]      ipv6_find_idev+0x102/0x170
[ 3430.909440][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3430.909440][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3430.909440][   T73]      netlink_rcv_skb+0x130/0x360
[ 3430.909440][   T73]      netlink_unicast+0x449/0x710
[ 3430.909440][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3430.909440][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3430.909440][   T73]      ___sys_sendmsg+0xee/0x170
[ 3430.909440][   T73]      __sys_sendmsg+0xcd/0x170
[ 3430.909440][   T73]      do_syscall_64+0xc6/0x1e0
[ 3430.909440][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3430.909440][   T73] 
[ 3430.910987][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3430.910987][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3430.910987][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3430.910987][   T73]      ipv6_find_idev+0x102/0x170
[ 3430.910987][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3430.910987][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3430.910987][   T73]      netlink_rcv_skb+0x130/0x360
[ 3430.910987][   T73]      netlink_unicast+0x449/0x710
[ 3430.910987][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3430.910987][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3430.910987][   T73]      ___sys_sendmsg+0xee/0x170
[ 3430.910987][   T73]      __sys_sendmsg+0xcd/0x170
[ 3430.910987][   T73]      do_syscall_64+0xc6/0x1e0
[ 3430.910987][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3430.910987][   T73] 
[ 3430.912690][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3430.912963][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3430.912963][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3430.912963][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3430.912963][   T73]      fib6_nh_init+0xa22/0x1580
[ 3430.912963][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3430.912963][   T73]      ip6_route_add+0x1c/0x140
[ 3430.912963][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3430.912963][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3430.912963][   T73]      netlink_rcv_skb+0x130/0x360
[ 3430.912963][   T73]      netlink_unicast+0x449/0x710
[ 3430.912963][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3430.912963][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3430.912963][   T73]      ___sys_sendmsg+0xee/0x170
[ 3430.912963][   T73]      __sys_sendmsg+0xcd/0x170
[ 3430.912963][   T73]      do_syscall_64+0xc6/0x1e0
[ 3430.912963][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3430.912963][   T73] 
[ 3430.915100][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3430.915100][   T73]      dst_init+0x84/0x4a0
[ 3430.915100][   T73]      dst_alloc+0x97/0x150
[ 3430.915100][   T73]      ip6_dst_alloc+0x23/0x90
[ 3430.915100][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3430.915100][   T73]      ip6_pol_route+0x56f/0x840
[ 3430.915100][   T73]      fib6_rule_lookup+0x456/0x630
[ 3430.915100][   T73]      ip6_route_input+0x59c/0xa50
[ 3430.915100][   T73]      ipv6_rcv+0x397/0x810
[ 3430.915100][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3430.915100][   T73]      process_backlog+0x101/0x620
[ 3430.915100][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3430.915100][   T73]      net_rx_action+0x495/0xbe0
[ 3430.915100][   T73]      __do_softirq+0x1b5/0x7f6
[ 3430.915100][   T73] 
[ 3430.916925][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3430.916925][   T73]      netdev_get_by_index+0x5e/0x80
[ 3430.916925][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3430.916925][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3430.916925][   T73]      ip6_route_add+0x1c/0x140
[ 3430.916925][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3430.916925][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3430.916925][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3430.916925][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3430.916925][   T73]      netlink_rcv_skb+0x130/0x360
[ 3430.916925][   T73]      netlink_unicast+0x449/0x710
[ 3430.916925][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3430.916925][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3430.916925][   T73]      ___sys_sendmsg+0xee/0x170
[ 3430.916925][   T73]      __sys_sendmsg+0xcd/0x170
[ 3430.916925][   T73]      do_syscall_64+0xc6/0x1e0
[ 3430.916925][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3430.916925][   T73] 
[ 3430.919238][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3430.919238][   T73]      netdev_get_by_index+0x5e/0x80
[ 3430.919238][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3430.919238][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3430.919238][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3430.919238][   T73]      ipv6_add_addr+0x411/0x2000
[ 3430.919238][   T73]      inet6_addr_add+0x30e/0xa40
[ 3430.919238][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3430.919238][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3430.919238][   T73]      netlink_rcv_skb+0x130/0x360
[ 3430.919238][   T73]      netlink_unicast+0x449/0x710
[ 3430.919238][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3430.919238][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3430.919238][   T73]      ___sys_sendmsg+0xee/0x170
[ 3430.919238][   T73]      __sys_sendmsg+0xcd/0x170
[ 3430.919238][   T73]      do_syscall_64+0xc6/0x1e0
[ 3430.919238][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3430.919238][   T73] 
[ 3430.921488][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3430.921488][   T73]      netdev_get_by_index+0x5e/0x80
[ 3430.921488][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3430.921488][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3430.921488][   T73]      ip6_route_add+0x1c/0x140
[ 3430.921488][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3430.921488][   T73]      addrconf_add_dev+0xe2/0x170
[ 3430.921488][   T73]      inet6_addr_add+0x12f/0xa40
[ 3430.921488][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3430.921488][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3430.921488][   T73]      netlink_rcv_skb+0x130/0x360
[ 3430.921488][   T73]      netlink_unicast+0x449/0x710
[ 3430.921488][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3430.921488][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3430.921488][   T73]      ___sys_sendmsg+0xee/0x170
[ 3430.921488][   T73]      __sys_sendmsg+0xcd/0x170
[ 3430.921488][   T73]      do_syscall_64+0xc6/0x1e0
[ 3430.921488][   T73] 
[ 3430.923708][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3430.923708][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3430.923708][   T73]      ipv6_find_idev+0x102/0x170
[ 3430.923708][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3430.923708][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3430.923708][   T73]      netlink_rcv_skb+0x130/0x360
[ 3430.923708][   T73]      netlink_unicast+0x449/0x710
[ 3430.923708][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3430.923708][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3430.923708][   T73]      ___sys_sendmsg+0xee/0x170
[ 3430.923708][   T73]      __sys_sendmsg+0xcd/0x170
[ 3430.923708][   T73]      do_syscall_64+0xc6/0x1e0
[ 3430.923708][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3430.923708][   T73] 
[ 3430.925451][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3430.925451][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3430.925451][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3430.925451][   T73]      ipv6_find_idev+0x102/0x170
[ 3430.925451][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3430.925451][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3430.925451][   T73]      netlink_rcv_skb+0x130/0x360
[ 3430.925451][   T73]      netlink_unicast+0x449/0x710
[ 3430.925451][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3430.925451][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3430.925451][   T73]      ___sys_sendmsg+0xee/0x170
[ 3430.925451][   T73]      __sys_sendmsg+0xcd/0x170
[ 3430.925451][   T73]      do_syscall_64+0xc6/0x1e0
[ 3430.925451][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3430.925451][   T73] 
[ 3430.927407][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3430.927687][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3430.927687][   T73]      netdev_get_by_index+0x5e/0x80
[ 3430.927687][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3430.927687][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3430.927687][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3430.927687][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3430.927687][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3430.927687][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3430.927687][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3430.927687][   T73]      addrconf_dad_begin+0x310/0x670
[ 3430.927687][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3430.927687][   T73]      process_one_work+0x84d/0x18a0
[ 3430.927687][   T73]      worker_thread+0x587/0xd30
[ 3430.927687][   T73]      kthread+0x28a/0x350
[ 3430.927687][   T73]      ret_from_fork+0x31/0x70
[ 3430.927687][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3430.927687][   T73] 
[ 3430.929889][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3430.929889][   T73]      netdev_get_by_index+0x5e/0x80
[ 3430.929889][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3430.929889][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3430.929889][   T73]      ip6_route_add+0x1c/0x140
[ 3430.929889][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3430.929889][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3430.929889][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3430.929889][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3430.929889][   T73]      netlink_rcv_skb+0x130/0x360
[ 3430.929889][   T73]      netlink_unicast+0x449/0x710
[ 3430.929889][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3430.929889][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3430.929889][   T73]      ___sys_sendmsg+0xee/0x170
[ 3430.929889][   T73]      __sys_sendmsg+0xcd/0x170
[ 3430.929889][   T73]      do_syscall_64+0xc6/0x1e0
[ 3430.929889][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3430.929889][   T73] 
[ 3430.932224][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3430.932224][   T73]      netdev_get_by_index+0x5e/0x80
[ 3430.932224][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3430.932224][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3430.932224][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3430.932224][   T73]      ipv6_add_addr+0x411/0x2000
[ 3430.932224][   T73]      inet6_addr_add+0x30e/0xa40
[ 3430.932224][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3430.932224][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3430.932224][   T73]      netlink_rcv_skb+0x130/0x360
[ 3430.932224][   T73]      netlink_unicast+0x449/0x710
[ 3430.932224][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3430.932224][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3430.932224][   T73]      ___sys_sendmsg+0xee/0x170
[ 3430.932224][   T73]      __sys_sendmsg+0xcd/0x170
[ 3430.932224][   T73]      do_syscall_64+0xc6/0x1e0
[ 3430.932224][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3430.932224][   T73] 
[ 3430.934426][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3430.934426][   T73]      netdev_get_by_index+0x5e/0x80
[ 3430.934426][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3430.934426][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3430.934426][   T73]      ip6_route_add+0x1c/0x140
[ 3430.934426][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3430.934426][   T73]      addrconf_add_dev+0xe2/0x170
[ 3430.934426][   T73]      inet6_addr_add+0x12f/0xa40
[ 3430.934426][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3430.934426][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3430.934426][   T73]      netlink_rcv_skb+0x130/0x360
[ 3430.934426][   T73]      netlink_unicast+0x449/0x710
[ 3430.934426][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3430.934426][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3430.934426][   T73]      ___sys_sendmsg+0xee/0x170
[ 3430.934426][   T73]      __sys_sendmsg+0xcd/0x170
[ 3430.934426][   T73]      do_syscall_64+0xc6/0x1e0
[ 3430.934426][   T73] 
[ 3430.936679][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3430.936679][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3430.936679][   T73]      ipv6_find_idev+0x102/0x170
[ 3430.936679][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3430.936679][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3430.936679][   T73]      netlink_rcv_skb+0x130/0x360
[ 3430.936679][   T73]      netlink_unicast+0x449/0x710
[ 3430.936679][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3430.936679][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3430.936679][   T73]      ___sys_sendmsg+0xee/0x170
[ 3430.936679][   T73]      __sys_sendmsg+0xcd/0x170
[ 3430.936679][   T73]      do_syscall_64+0xc6/0x1e0
[ 3430.936679][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3430.936679][   T73] 
[ 3430.938431][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3430.938431][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3430.938431][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3430.938431][   T73]      ipv6_find_idev+0x102/0x170
[ 3430.938431][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3430.938431][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3430.938431][   T73]      netlink_rcv_skb+0x130/0x360
[ 3430.938431][   T73]      netlink_unicast+0x449/0x710
[ 3430.938431][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3430.938431][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3430.938431][   T73]      ___sys_sendmsg+0xee/0x170
[ 3430.938431][   T73]      __sys_sendmsg+0xcd/0x170
[ 3430.938431][   T73]      do_syscall_64+0xc6/0x1e0
[ 3430.938431][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3430.938431][   T73] 
[ 3441.183801][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3441.184301][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3441.184301][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3441.184301][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3441.184301][   T73]      fib6_nh_init+0xa22/0x1580
[ 3441.184301][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3441.184301][   T73]      ip6_route_add+0x1c/0x140
[ 3441.184301][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3441.184301][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3441.184301][   T73]      netlink_rcv_skb+0x130/0x360
[ 3441.184301][   T73]      netlink_unicast+0x449/0x710
[ 3441.184301][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3441.184301][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3441.184301][   T73]      ___sys_sendmsg+0xee/0x170
[ 3441.184301][   T73]      __sys_sendmsg+0xcd/0x170
[ 3441.184301][   T73]      do_syscall_64+0xc6/0x1e0
[ 3441.184301][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3441.184301][   T73] 
[ 3441.186207][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3441.186207][   T73]      dst_init+0x84/0x4a0
[ 3441.186207][   T73]      dst_alloc+0x97/0x150
[ 3441.186207][   T73]      ip6_dst_alloc+0x23/0x90
[ 3441.186207][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3441.186207][   T73]      ip6_pol_route+0x56f/0x840
[ 3441.186207][   T73]      fib6_rule_lookup+0x456/0x630
[ 3441.186207][   T73]      ip6_route_input+0x59c/0xa50
[ 3441.186207][   T73]      ipv6_rcv+0x397/0x810
[ 3441.186207][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3441.186207][   T73]      process_backlog+0x101/0x620
[ 3441.186207][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3441.186207][   T73]      net_rx_action+0x495/0xbe0
[ 3441.186207][   T73]      __do_softirq+0x1b5/0x7f6
[ 3441.186207][   T73] 
[ 3441.187841][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3441.187841][   T73]      netdev_get_by_index+0x5e/0x80
[ 3441.187841][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3441.187841][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3441.187841][   T73]      ip6_route_add+0x1c/0x140
[ 3441.187841][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3441.187841][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3441.187841][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3441.187841][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3441.187841][   T73]      netlink_rcv_skb+0x130/0x360
[ 3441.187841][   T73]      netlink_unicast+0x449/0x710
[ 3441.187841][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3441.187841][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3441.187841][   T73]      ___sys_sendmsg+0xee/0x170
[ 3441.187841][   T73]      __sys_sendmsg+0xcd/0x170
[ 3441.187841][   T73]      do_syscall_64+0xc6/0x1e0
[ 3441.187841][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3441.187841][   T73] 
[ 3441.189865][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3441.189865][   T73]      netdev_get_by_index+0x5e/0x80
[ 3441.189865][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3441.189865][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3441.189865][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3441.189865][   T73]      ipv6_add_addr+0x411/0x2000
[ 3441.189865][   T73]      inet6_addr_add+0x30e/0xa40
[ 3441.189865][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3441.189865][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3441.189865][   T73]      netlink_rcv_skb+0x130/0x360
[ 3441.189865][   T73]      netlink_unicast+0x449/0x710
[ 3441.189865][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3441.189865][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3441.189865][   T73]      ___sys_sendmsg+0xee/0x170
[ 3441.189865][   T73]      __sys_sendmsg+0xcd/0x170
[ 3441.189865][   T73]      do_syscall_64+0xc6/0x1e0
[ 3441.189865][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3441.189865][   T73] 
[ 3441.191889][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3441.191889][   T73]      netdev_get_by_index+0x5e/0x80
[ 3441.191889][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3441.191889][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3441.191889][   T73]      ip6_route_add+0x1c/0x140
[ 3441.191889][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3441.191889][   T73]      addrconf_add_dev+0xe2/0x170
[ 3441.191889][   T73]      inet6_addr_add+0x12f/0xa40
[ 3441.191889][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3441.191889][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3441.191889][   T73]      netlink_rcv_skb+0x130/0x360
[ 3441.191889][   T73]      netlink_unicast+0x449/0x710
[ 3441.191889][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3441.191889][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3441.191889][   T73]      ___sys_sendmsg+0xee/0x170
[ 3441.191889][   T73]      __sys_sendmsg+0xcd/0x170
[ 3441.191889][   T73]      do_syscall_64+0xc6/0x1e0
[ 3441.191889][   T73] 
[ 3441.193864][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3441.193864][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3441.193864][   T73]      ipv6_find_idev+0x102/0x170
[ 3441.193864][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3441.193864][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3441.193864][   T73]      netlink_rcv_skb+0x130/0x360
[ 3441.193864][   T73]      netlink_unicast+0x449/0x710
[ 3441.193864][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3441.193864][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3441.193864][   T73]      ___sys_sendmsg+0xee/0x170
[ 3441.193864][   T73]      __sys_sendmsg+0xcd/0x170
[ 3441.193864][   T73]      do_syscall_64+0xc6/0x1e0
[ 3441.193864][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3441.193864][   T73] 
[ 3441.195408][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3441.195408][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3441.195408][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3441.195408][   T73]      ipv6_find_idev+0x102/0x170
[ 3441.195408][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3441.195408][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3441.195408][   T73]      netlink_rcv_skb+0x130/0x360
[ 3441.195408][   T73]      netlink_unicast+0x449/0x710
[ 3441.195408][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3441.195408][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3441.195408][   T73]      ___sys_sendmsg+0xee/0x170
[ 3441.195408][   T73]      __sys_sendmsg+0xcd/0x170
[ 3441.195408][   T73]      do_syscall_64+0xc6/0x1e0
[ 3441.195408][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3441.195408][   T73] 
[ 3441.197159][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3441.197446][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3441.197446][   T73]      netdev_get_by_index+0x5e/0x80
[ 3441.197446][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3441.197446][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3441.197446][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3441.197446][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3441.197446][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3441.197446][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3441.197446][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3441.197446][   T73]      addrconf_dad_begin+0x310/0x670
[ 3441.197446][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3441.197446][   T73]      process_one_work+0x84d/0x18a0
[ 3441.197446][   T73]      worker_thread+0x587/0xd30
[ 3441.197446][   T73]      kthread+0x28a/0x350
[ 3441.197446][   T73]      ret_from_fork+0x31/0x70
[ 3441.197446][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3441.197446][   T73] 
[ 3441.199380][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3441.199380][   T73]      netdev_get_by_index+0x5e/0x80
[ 3441.199380][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3441.199380][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3441.199380][   T73]      ip6_route_add+0x1c/0x140
[ 3441.199380][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3441.199380][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3441.199380][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3441.199380][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3441.199380][   T73]      netlink_rcv_skb+0x130/0x360
[ 3441.199380][   T73]      netlink_unicast+0x449/0x710
[ 3441.199380][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3441.199380][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3441.199380][   T73]      ___sys_sendmsg+0xee/0x170
[ 3441.199380][   T73]      __sys_sendmsg+0xcd/0x170
[ 3441.199380][   T73]      do_syscall_64+0xc6/0x1e0
[ 3441.199380][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3441.199380][   T73] 
[ 3441.201382][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3441.201382][   T73]      netdev_get_by_index+0x5e/0x80
[ 3441.201382][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3441.201382][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3441.201382][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3441.201382][   T73]      ipv6_add_addr+0x411/0x2000
[ 3441.201382][   T73]      inet6_addr_add+0x30e/0xa40
[ 3441.201382][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3441.201382][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3441.201382][   T73]      netlink_rcv_skb+0x130/0x360
[ 3441.201382][   T73]      netlink_unicast+0x449/0x710
[ 3441.201382][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3441.201382][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3441.201382][   T73]      ___sys_sendmsg+0xee/0x170
[ 3441.201382][   T73]      __sys_sendmsg+0xcd/0x170
[ 3441.201382][   T73]      do_syscall_64+0xc6/0x1e0
[ 3441.201382][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3441.201382][   T73] 
[ 3441.203391][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3441.203391][   T73]      netdev_get_by_index+0x5e/0x80
[ 3441.203391][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3441.203391][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3441.203391][   T73]      ip6_route_add+0x1c/0x140
[ 3441.203391][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3441.203391][   T73]      addrconf_add_dev+0xe2/0x170
[ 3441.203391][   T73]      inet6_addr_add+0x12f/0xa40
[ 3441.203391][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3441.203391][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3441.203391][   T73]      netlink_rcv_skb+0x130/0x360
[ 3441.203391][   T73]      netlink_unicast+0x449/0x710
[ 3441.203391][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3441.203391][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3441.203391][   T73]      ___sys_sendmsg+0xee/0x170
[ 3441.203391][   T73]      __sys_sendmsg+0xcd/0x170
[ 3441.203391][   T73]      do_syscall_64+0xc6/0x1e0
[ 3441.203391][   T73] 
[ 3441.205354][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3441.205354][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3441.205354][   T73]      ipv6_find_idev+0x102/0x170
[ 3441.205354][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3441.205354][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3441.205354][   T73]      netlink_rcv_skb+0x130/0x360
[ 3441.205354][   T73]      netlink_unicast+0x449/0x710
[ 3441.205354][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3441.205354][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3441.205354][   T73]      ___sys_sendmsg+0xee/0x170
[ 3441.205354][   T73]      __sys_sendmsg+0xcd/0x170
[ 3441.205354][   T73]      do_syscall_64+0xc6/0x1e0
[ 3441.205354][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3441.205354][   T73] 
[ 3441.206901][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3441.206901][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3441.206901][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3441.206901][   T73]      ipv6_find_idev+0x102/0x170
[ 3441.206901][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3441.206901][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3441.206901][   T73]      netlink_rcv_skb+0x130/0x360
[ 3441.206901][   T73]      netlink_unicast+0x449/0x710
[ 3441.206901][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3441.206901][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3441.206901][   T73]      ___sys_sendmsg+0xee/0x170
[ 3441.206901][   T73]      __sys_sendmsg+0xcd/0x170
[ 3441.206901][   T73]      do_syscall_64+0xc6/0x1e0
[ 3441.206901][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3441.206901][   T73] 
[ 3441.208607][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3441.208928][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3441.208928][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3441.208928][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3441.208928][   T73]      fib6_nh_init+0xa22/0x1580
[ 3441.208928][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3441.208928][   T73]      ip6_route_add+0x1c/0x140
[ 3441.208928][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3441.208928][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3441.208928][   T73]      netlink_rcv_skb+0x130/0x360
[ 3441.208928][   T73]      netlink_unicast+0x449/0x710
[ 3441.208928][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3441.208928][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3441.208928][   T73]      ___sys_sendmsg+0xee/0x170
[ 3441.208928][   T73]      __sys_sendmsg+0xcd/0x170
[ 3441.208928][   T73]      do_syscall_64+0xc6/0x1e0
[ 3441.208928][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3441.208928][   T73] 
[ 3441.211003][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3441.211003][   T73]      dst_init+0x84/0x4a0
[ 3441.211003][   T73]      dst_alloc+0x97/0x150
[ 3441.211003][   T73]      ip6_dst_alloc+0x23/0x90
[ 3441.211003][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3441.211003][   T73]      ip6_pol_route+0x56f/0x840
[ 3441.211003][   T73]      fib6_rule_lookup+0x456/0x630
[ 3441.211003][   T73]      ip6_route_input+0x59c/0xa50
[ 3441.211003][   T73]      ipv6_rcv+0x397/0x810
[ 3441.211003][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3441.211003][   T73]      process_backlog+0x101/0x620
[ 3441.211003][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3441.211003][   T73]      net_rx_action+0x495/0xbe0
[ 3441.211003][   T73]      __do_softirq+0x1b5/0x7f6
[ 3441.211003][   T73] 
[ 3441.212836][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3441.212836][   T73]      netdev_get_by_index+0x5e/0x80
[ 3441.212836][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3441.212836][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3441.212836][   T73]      ip6_route_add+0x1c/0x140
[ 3441.212836][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3441.212836][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3441.212836][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3441.212836][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3441.212836][   T73]      netlink_rcv_skb+0x130/0x360
[ 3441.212836][   T73]      netlink_unicast+0x449/0x710
[ 3441.212836][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3441.212836][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3441.212836][   T73]      ___sys_sendmsg+0xee/0x170
[ 3441.212836][   T73]      __sys_sendmsg+0xcd/0x170
[ 3441.212836][   T73]      do_syscall_64+0xc6/0x1e0
[ 3441.212836][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3441.212836][   T73] 
[ 3441.215151][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3441.215151][   T73]      netdev_get_by_index+0x5e/0x80
[ 3441.215151][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3441.215151][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3441.215151][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3441.215151][   T73]      ipv6_add_addr+0x411/0x2000
[ 3441.215151][   T73]      inet6_addr_add+0x30e/0xa40
[ 3441.215151][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3441.215151][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3441.215151][   T73]      netlink_rcv_skb+0x130/0x360
[ 3441.215151][   T73]      netlink_unicast+0x449/0x710
[ 3441.215151][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3441.215151][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3441.215151][   T73]      ___sys_sendmsg+0xee/0x170
[ 3441.215151][   T73]      __sys_sendmsg+0xcd/0x170
[ 3441.215151][   T73]      do_syscall_64+0xc6/0x1e0
[ 3441.215151][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3441.215151][   T73] 
[ 3441.217426][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3441.217426][   T73]      netdev_get_by_index+0x5e/0x80
[ 3441.217426][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3441.217426][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3441.217426][   T73]      ip6_route_add+0x1c/0x140
[ 3441.217426][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3441.217426][   T73]      addrconf_add_dev+0xe2/0x170
[ 3441.217426][   T73]      inet6_addr_add+0x12f/0xa40
[ 3441.217426][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3441.217426][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3441.217426][   T73]      netlink_rcv_skb+0x130/0x360
[ 3441.217426][   T73]      netlink_unicast+0x449/0x710
[ 3441.217426][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3441.217426][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3441.217426][   T73]      ___sys_sendmsg+0xee/0x170
[ 3441.217426][   T73]      __sys_sendmsg+0xcd/0x170
[ 3441.217426][   T73]      do_syscall_64+0xc6/0x1e0
[ 3441.217426][   T73] 
[ 3441.219583][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3441.219583][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3441.219583][   T73]      ipv6_find_idev+0x102/0x170
[ 3441.219583][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3441.219583][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3441.219583][   T73]      netlink_rcv_skb+0x130/0x360
[ 3441.219583][   T73]      netlink_unicast+0x449/0x710
[ 3441.219583][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3441.219583][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3441.219583][   T73]      ___sys_sendmsg+0xee/0x170
[ 3441.219583][   T73]      __sys_sendmsg+0xcd/0x170
[ 3441.219583][   T73]      do_syscall_64+0xc6/0x1e0
[ 3441.219583][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3441.219583][   T73] 
[ 3441.221317][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3441.221317][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3441.221317][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3441.221317][   T73]      ipv6_find_idev+0x102/0x170
[ 3441.221317][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3441.221317][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3441.221317][   T73]      netlink_rcv_skb+0x130/0x360
[ 3441.221317][   T73]      netlink_unicast+0x449/0x710
[ 3441.221317][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3441.221317][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3441.221317][   T73]      ___sys_sendmsg+0xee/0x170
[ 3441.221317][   T73]      __sys_sendmsg+0xcd/0x170
[ 3441.221317][   T73]      do_syscall_64+0xc6/0x1e0
[ 3441.221317][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3441.221317][   T73] 
[ 3441.223237][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3441.223511][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3441.223511][   T73]      netdev_get_by_index+0x5e/0x80
[ 3441.223511][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3441.223511][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3441.223511][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3441.223511][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3441.223511][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3441.223511][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3441.223511][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3441.223511][   T73]      addrconf_dad_begin+0x310/0x670
[ 3441.223511][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3441.223511][   T73]      process_one_work+0x84d/0x18a0
[ 3441.223511][   T73]      worker_thread+0x587/0xd30
[ 3441.223511][   T73]      kthread+0x28a/0x350
[ 3441.223511][   T73]      ret_from_fork+0x31/0x70
[ 3441.223511][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3441.223511][   T73] 
[ 3441.225731][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3441.225731][   T73]      netdev_get_by_index+0x5e/0x80
[ 3441.225731][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3441.225731][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3441.225731][   T73]      ip6_route_add+0x1c/0x140
[ 3441.225731][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3441.225731][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3441.225731][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3441.225731][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3441.225731][   T73]      netlink_rcv_skb+0x130/0x360
[ 3441.225731][   T73]      netlink_unicast+0x449/0x710
[ 3441.225731][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3441.225731][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3441.225731][   T73]      ___sys_sendmsg+0xee/0x170
[ 3441.225731][   T73]      __sys_sendmsg+0xcd/0x170
[ 3441.225731][   T73]      do_syscall_64+0xc6/0x1e0
[ 3441.225731][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3441.225731][   T73] 
[ 3441.227896][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3441.227896][   T73]      netdev_get_by_index+0x5e/0x80
[ 3441.227896][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3441.227896][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3441.227896][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3441.227896][   T73]      ipv6_add_addr+0x411/0x2000
[ 3441.227896][   T73]      inet6_addr_add+0x30e/0xa40
[ 3441.227896][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3441.227896][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3441.227896][   T73]      netlink_rcv_skb+0x130/0x360
[ 3441.227896][   T73]      netlink_unicast+0x449/0x710
[ 3441.227896][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3441.227896][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3441.227896][   T73]      ___sys_sendmsg+0xee/0x170
[ 3441.227896][   T73]      __sys_sendmsg+0xcd/0x170
[ 3441.227896][   T73]      do_syscall_64+0xc6/0x1e0
[ 3441.227896][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3441.227896][   T73] 
[ 3441.230143][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3441.230143][   T73]      netdev_get_by_index+0x5e/0x80
[ 3441.230143][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3441.230143][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3441.230143][   T73]      ip6_route_add+0x1c/0x140
[ 3441.230143][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3441.230143][   T73]      addrconf_add_dev+0xe2/0x170
[ 3441.230143][   T73]      inet6_addr_add+0x12f/0xa40
[ 3441.230143][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3441.230143][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3441.230143][   T73]      netlink_rcv_skb+0x130/0x360
[ 3441.230143][   T73]      netlink_unicast+0x449/0x710
[ 3441.230143][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3441.230143][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3441.230143][   T73]      ___sys_sendmsg+0xee/0x170
[ 3441.230143][   T73]      __sys_sendmsg+0xcd/0x170
[ 3441.230143][   T73]      do_syscall_64+0xc6/0x1e0
[ 3441.230143][   T73] 
[ 3441.232337][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3441.232337][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3441.232337][   T73]      ipv6_find_idev+0x102/0x170
[ 3441.232337][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3441.232337][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3441.232337][   T73]      netlink_rcv_skb+0x130/0x360
[ 3441.232337][   T73]      netlink_unicast+0x449/0x710
[ 3441.232337][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3441.232337][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3441.232337][   T73]      ___sys_sendmsg+0xee/0x170
[ 3441.232337][   T73]      __sys_sendmsg+0xcd/0x170
[ 3441.232337][   T73]      do_syscall_64+0xc6/0x1e0
[ 3441.232337][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3441.232337][   T73] 
[ 3441.234106][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3441.234106][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3441.234106][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3441.234106][   T73]      ipv6_find_idev+0x102/0x170
[ 3441.234106][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3441.234106][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3441.234106][   T73]      netlink_rcv_skb+0x130/0x360
[ 3441.234106][   T73]      netlink_unicast+0x449/0x710
[ 3441.234106][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3441.234106][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3441.234106][   T73]      ___sys_sendmsg+0xee/0x170
[ 3441.234106][   T73]      __sys_sendmsg+0xcd/0x170
[ 3441.234106][   T73]      do_syscall_64+0xc6/0x1e0
[ 3441.234106][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3441.234106][   T73] 
[ 3451.455803][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3451.456300][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3451.456300][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3451.456300][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3451.456300][   T73]      fib6_nh_init+0xa22/0x1580
[ 3451.456300][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3451.456300][   T73]      ip6_route_add+0x1c/0x140
[ 3451.456300][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3451.456300][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3451.456300][   T73]      netlink_rcv_skb+0x130/0x360
[ 3451.456300][   T73]      netlink_unicast+0x449/0x710
[ 3451.456300][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3451.456300][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3451.456300][   T73]      ___sys_sendmsg+0xee/0x170
[ 3451.456300][   T73]      __sys_sendmsg+0xcd/0x170
[ 3451.456300][   T73]      do_syscall_64+0xc6/0x1e0
[ 3451.456300][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3451.456300][   T73] 
[ 3451.458186][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3451.458186][   T73]      dst_init+0x84/0x4a0
[ 3451.458186][   T73]      dst_alloc+0x97/0x150
[ 3451.458186][   T73]      ip6_dst_alloc+0x23/0x90
[ 3451.458186][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3451.458186][   T73]      ip6_pol_route+0x56f/0x840
[ 3451.458186][   T73]      fib6_rule_lookup+0x456/0x630
[ 3451.458186][   T73]      ip6_route_input+0x59c/0xa50
[ 3451.458186][   T73]      ipv6_rcv+0x397/0x810
[ 3451.458186][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3451.458186][   T73]      process_backlog+0x101/0x620
[ 3451.458186][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3451.458186][   T73]      net_rx_action+0x495/0xbe0
[ 3451.458186][   T73]      __do_softirq+0x1b5/0x7f6
[ 3451.458186][   T73] 
[ 3451.459841][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3451.459841][   T73]      netdev_get_by_index+0x5e/0x80
[ 3451.459841][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3451.459841][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3451.459841][   T73]      ip6_route_add+0x1c/0x140
[ 3451.459841][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3451.459841][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3451.459841][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3451.459841][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3451.459841][   T73]      netlink_rcv_skb+0x130/0x360
[ 3451.459841][   T73]      netlink_unicast+0x449/0x710
[ 3451.459841][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3451.459841][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3451.459841][   T73]      ___sys_sendmsg+0xee/0x170
[ 3451.459841][   T73]      __sys_sendmsg+0xcd/0x170
[ 3451.459841][   T73]      do_syscall_64+0xc6/0x1e0
[ 3451.459841][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3451.459841][   T73] 
[ 3451.461829][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3451.461829][   T73]      netdev_get_by_index+0x5e/0x80
[ 3451.461829][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3451.461829][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3451.461829][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3451.461829][   T73]      ipv6_add_addr+0x411/0x2000
[ 3451.461829][   T73]      inet6_addr_add+0x30e/0xa40
[ 3451.461829][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3451.461829][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3451.461829][   T73]      netlink_rcv_skb+0x130/0x360
[ 3451.461829][   T73]      netlink_unicast+0x449/0x710
[ 3451.461829][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3451.461829][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3451.461829][   T73]      ___sys_sendmsg+0xee/0x170
[ 3451.461829][   T73]      __sys_sendmsg+0xcd/0x170
[ 3451.461829][   T73]      do_syscall_64+0xc6/0x1e0
[ 3451.461829][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3451.461829][   T73] 
[ 3451.463810][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3451.463810][   T73]      netdev_get_by_index+0x5e/0x80
[ 3451.463810][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3451.463810][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3451.463810][   T73]      ip6_route_add+0x1c/0x140
[ 3451.463810][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3451.463810][   T73]      addrconf_add_dev+0xe2/0x170
[ 3451.463810][   T73]      inet6_addr_add+0x12f/0xa40
[ 3451.463810][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3451.463810][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3451.463810][   T73]      netlink_rcv_skb+0x130/0x360
[ 3451.463810][   T73]      netlink_unicast+0x449/0x710
[ 3451.463810][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3451.463810][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3451.463810][   T73]      ___sys_sendmsg+0xee/0x170
[ 3451.463810][   T73]      __sys_sendmsg+0xcd/0x170
[ 3451.463810][   T73]      do_syscall_64+0xc6/0x1e0
[ 3451.463810][   T73] 
[ 3451.465761][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3451.465761][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3451.465761][   T73]      ipv6_find_idev+0x102/0x170
[ 3451.465761][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3451.465761][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3451.465761][   T73]      netlink_rcv_skb+0x130/0x360
[ 3451.465761][   T73]      netlink_unicast+0x449/0x710
[ 3451.465761][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3451.465761][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3451.465761][   T73]      ___sys_sendmsg+0xee/0x170
[ 3451.465761][   T73]      __sys_sendmsg+0xcd/0x170
[ 3451.465761][   T73]      do_syscall_64+0xc6/0x1e0
[ 3451.465761][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3451.465761][   T73] 
[ 3451.467287][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3451.467287][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3451.467287][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3451.467287][   T73]      ipv6_find_idev+0x102/0x170
[ 3451.467287][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3451.467287][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3451.467287][   T73]      netlink_rcv_skb+0x130/0x360
[ 3451.467287][   T73]      netlink_unicast+0x449/0x710
[ 3451.467287][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3451.467287][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3451.467287][   T73]      ___sys_sendmsg+0xee/0x170
[ 3451.467287][   T73]      __sys_sendmsg+0xcd/0x170
[ 3451.467287][   T73]      do_syscall_64+0xc6/0x1e0
[ 3451.467287][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3451.467287][   T73] 
[ 3451.468974][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3451.469255][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3451.469255][   T73]      netdev_get_by_index+0x5e/0x80
[ 3451.469255][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3451.469255][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3451.469255][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3451.469255][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3451.469255][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3451.469255][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3451.469255][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3451.469255][   T73]      addrconf_dad_begin+0x310/0x670
[ 3451.469255][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3451.469255][   T73]      process_one_work+0x84d/0x18a0
[ 3451.469255][   T73]      worker_thread+0x587/0xd30
[ 3451.469255][   T73]      kthread+0x28a/0x350
[ 3451.469255][   T73]      ret_from_fork+0x31/0x70
[ 3451.469255][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3451.469255][   T73] 
[ 3451.471194][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3451.471194][   T73]      netdev_get_by_index+0x5e/0x80
[ 3451.471194][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3451.471194][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3451.471194][   T73]      ip6_route_add+0x1c/0x140
[ 3451.471194][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3451.471194][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3451.471194][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3451.471194][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3451.471194][   T73]      netlink_rcv_skb+0x130/0x360
[ 3451.471194][   T73]      netlink_unicast+0x449/0x710
[ 3451.471194][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3451.471194][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3451.471194][   T73]      ___sys_sendmsg+0xee/0x170
[ 3451.471194][   T73]      __sys_sendmsg+0xcd/0x170
[ 3451.471194][   T73]      do_syscall_64+0xc6/0x1e0
[ 3451.471194][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3451.471194][   T73] 
[ 3451.473170][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3451.473170][   T73]      netdev_get_by_index+0x5e/0x80
[ 3451.473170][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3451.473170][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3451.473170][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3451.473170][   T73]      ipv6_add_addr+0x411/0x2000
[ 3451.473170][   T73]      inet6_addr_add+0x30e/0xa40
[ 3451.473170][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3451.473170][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3451.473170][   T73]      netlink_rcv_skb+0x130/0x360
[ 3451.473170][   T73]      netlink_unicast+0x449/0x710
[ 3451.473170][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3451.473170][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3451.473170][   T73]      ___sys_sendmsg+0xee/0x170
[ 3451.473170][   T73]      __sys_sendmsg+0xcd/0x170
[ 3451.473170][   T73]      do_syscall_64+0xc6/0x1e0
[ 3451.473170][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3451.473170][   T73] 
[ 3451.475154][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3451.475154][   T73]      netdev_get_by_index+0x5e/0x80
[ 3451.475154][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3451.475154][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3451.475154][   T73]      ip6_route_add+0x1c/0x140
[ 3451.475154][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3451.475154][   T73]      addrconf_add_dev+0xe2/0x170
[ 3451.475154][   T73]      inet6_addr_add+0x12f/0xa40
[ 3451.475154][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3451.475154][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3451.475154][   T73]      netlink_rcv_skb+0x130/0x360
[ 3451.475154][   T73]      netlink_unicast+0x449/0x710
[ 3451.475154][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3451.475154][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3451.475154][   T73]      ___sys_sendmsg+0xee/0x170
[ 3451.475154][   T73]      __sys_sendmsg+0xcd/0x170
[ 3451.475154][   T73]      do_syscall_64+0xc6/0x1e0
[ 3451.475154][   T73] 
[ 3451.477142][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3451.477142][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3451.477142][   T73]      ipv6_find_idev+0x102/0x170
[ 3451.477142][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3451.477142][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3451.477142][   T73]      netlink_rcv_skb+0x130/0x360
[ 3451.477142][   T73]      netlink_unicast+0x449/0x710
[ 3451.477142][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3451.477142][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3451.477142][   T73]      ___sys_sendmsg+0xee/0x170
[ 3451.477142][   T73]      __sys_sendmsg+0xcd/0x170
[ 3451.477142][   T73]      do_syscall_64+0xc6/0x1e0
[ 3451.477142][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3451.477142][   T73] 
[ 3451.478689][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3451.478689][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3451.478689][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3451.478689][   T73]      ipv6_find_idev+0x102/0x170
[ 3451.478689][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3451.478689][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3451.478689][   T73]      netlink_rcv_skb+0x130/0x360
[ 3451.478689][   T73]      netlink_unicast+0x449/0x710
[ 3451.478689][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3451.478689][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3451.478689][   T73]      ___sys_sendmsg+0xee/0x170
[ 3451.478689][   T73]      __sys_sendmsg+0xcd/0x170
[ 3451.478689][   T73]      do_syscall_64+0xc6/0x1e0
[ 3451.478689][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3451.478689][   T73] 
[ 3451.480401][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3451.480676][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3451.480676][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3451.480676][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3451.480676][   T73]      fib6_nh_init+0xa22/0x1580
[ 3451.480676][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3451.480676][   T73]      ip6_route_add+0x1c/0x140
[ 3451.480676][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3451.480676][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3451.480676][   T73]      netlink_rcv_skb+0x130/0x360
[ 3451.480676][   T73]      netlink_unicast+0x449/0x710
[ 3451.480676][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3451.480676][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3451.480676][   T73]      ___sys_sendmsg+0xee/0x170
[ 3451.480676][   T73]      __sys_sendmsg+0xcd/0x170
[ 3451.480676][   T73]      do_syscall_64+0xc6/0x1e0
[ 3451.480676][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3451.480676][   T73] 
[ 3451.482768][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3451.482768][   T73]      dst_init+0x84/0x4a0
[ 3451.482768][   T73]      dst_alloc+0x97/0x150
[ 3451.482768][   T73]      ip6_dst_alloc+0x23/0x90
[ 3451.482768][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3451.482768][   T73]      ip6_pol_route+0x56f/0x840
[ 3451.482768][   T73]      fib6_rule_lookup+0x456/0x630
[ 3451.482768][   T73]      ip6_route_input+0x59c/0xa50
[ 3451.482768][   T73]      ipv6_rcv+0x397/0x810
[ 3451.482768][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3451.482768][   T73]      process_backlog+0x101/0x620
[ 3451.482768][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3451.482768][   T73]      net_rx_action+0x495/0xbe0
[ 3451.482768][   T73]      __do_softirq+0x1b5/0x7f6
[ 3451.482768][   T73] 
[ 3451.484589][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3451.484589][   T73]      netdev_get_by_index+0x5e/0x80
[ 3451.484589][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3451.484589][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3451.484589][   T73]      ip6_route_add+0x1c/0x140
[ 3451.484589][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3451.484589][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3451.484589][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3451.484589][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3451.484589][   T73]      netlink_rcv_skb+0x130/0x360
[ 3451.484589][   T73]      netlink_unicast+0x449/0x710
[ 3451.484589][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3451.484589][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3451.484589][   T73]      ___sys_sendmsg+0xee/0x170
[ 3451.484589][   T73]      __sys_sendmsg+0xcd/0x170
[ 3451.484589][   T73]      do_syscall_64+0xc6/0x1e0
[ 3451.484589][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3451.484589][   T73] 
[ 3451.486834][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3451.486834][   T73]      netdev_get_by_index+0x5e/0x80
[ 3451.486834][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3451.486834][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3451.486834][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3451.486834][   T73]      ipv6_add_addr+0x411/0x2000
[ 3451.486834][   T73]      inet6_addr_add+0x30e/0xa40
[ 3451.486834][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3451.486834][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3451.486834][   T73]      netlink_rcv_skb+0x130/0x360
[ 3451.486834][   T73]      netlink_unicast+0x449/0x710
[ 3451.486834][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3451.486834][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3451.486834][   T73]      ___sys_sendmsg+0xee/0x170
[ 3451.486834][   T73]      __sys_sendmsg+0xcd/0x170
[ 3451.486834][   T73]      do_syscall_64+0xc6/0x1e0
[ 3451.486834][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3451.486834][   T73] 
[ 3451.489028][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3451.489028][   T73]      netdev_get_by_index+0x5e/0x80
[ 3451.489028][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3451.489028][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3451.489028][   T73]      ip6_route_add+0x1c/0x140
[ 3451.489028][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3451.489028][   T73]      addrconf_add_dev+0xe2/0x170
[ 3451.489028][   T73]      inet6_addr_add+0x12f/0xa40
[ 3451.489028][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3451.489028][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3451.489028][   T73]      netlink_rcv_skb+0x130/0x360
[ 3451.489028][   T73]      netlink_unicast+0x449/0x710
[ 3451.489028][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3451.489028][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3451.489028][   T73]      ___sys_sendmsg+0xee/0x170
[ 3451.489028][   T73]      __sys_sendmsg+0xcd/0x170
[ 3451.489028][   T73]      do_syscall_64+0xc6/0x1e0
[ 3451.489028][   T73] 
[ 3451.494057][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3451.494057][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3451.494057][   T73]      ipv6_find_idev+0x102/0x170
[ 3451.494057][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3451.494057][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3451.494057][   T73]      netlink_rcv_skb+0x130/0x360
[ 3451.494057][   T73]      netlink_unicast+0x449/0x710
[ 3451.494057][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3451.494057][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3451.494057][   T73]      ___sys_sendmsg+0xee/0x170
[ 3451.494057][   T73]      __sys_sendmsg+0xcd/0x170
[ 3451.494057][   T73]      do_syscall_64+0xc6/0x1e0
[ 3451.494057][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3451.494057][   T73] 
[ 3451.495834][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3451.495834][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3451.495834][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3451.495834][   T73]      ipv6_find_idev+0x102/0x170
[ 3451.495834][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3451.495834][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3451.495834][   T73]      netlink_rcv_skb+0x130/0x360
[ 3451.495834][   T73]      netlink_unicast+0x449/0x710
[ 3451.495834][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3451.495834][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3451.495834][   T73]      ___sys_sendmsg+0xee/0x170
[ 3451.495834][   T73]      __sys_sendmsg+0xcd/0x170
[ 3451.495834][   T73]      do_syscall_64+0xc6/0x1e0
[ 3451.495834][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3451.495834][   T73] 
[ 3451.497714][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3451.498068][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3451.498068][   T73]      netdev_get_by_index+0x5e/0x80
[ 3451.498068][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3451.498068][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3451.498068][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3451.498068][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3451.498068][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3451.498068][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3451.498068][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3451.498068][   T73]      addrconf_dad_begin+0x310/0x670
[ 3451.498068][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3451.498068][   T73]      process_one_work+0x84d/0x18a0
[ 3451.498068][   T73]      worker_thread+0x587/0xd30
[ 3451.498068][   T73]      kthread+0x28a/0x350
[ 3451.498068][   T73]      ret_from_fork+0x31/0x70
[ 3451.498068][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3451.498068][   T73] 
[ 3451.502297][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3451.502297][   T73]      netdev_get_by_index+0x5e/0x80
[ 3451.502297][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3451.502297][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3451.502297][   T73]      ip6_route_add+0x1c/0x140
[ 3451.502297][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3451.502297][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3451.502297][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3451.502297][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3451.502297][   T73]      netlink_rcv_skb+0x130/0x360
[ 3451.502297][   T73]      netlink_unicast+0x449/0x710
[ 3451.502297][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3451.502297][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3451.502297][   T73]      ___sys_sendmsg+0xee/0x170
[ 3451.502297][   T73]      __sys_sendmsg+0xcd/0x170
[ 3451.502297][   T73]      do_syscall_64+0xc6/0x1e0
[ 3451.502297][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3451.502297][   T73] 
[ 3451.504593][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3451.504593][   T73]      netdev_get_by_index+0x5e/0x80
[ 3451.504593][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3451.504593][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3451.504593][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3451.504593][   T73]      ipv6_add_addr+0x411/0x2000
[ 3451.504593][   T73]      inet6_addr_add+0x30e/0xa40
[ 3451.504593][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3451.504593][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3451.504593][   T73]      netlink_rcv_skb+0x130/0x360
[ 3451.504593][   T73]      netlink_unicast+0x449/0x710
[ 3451.504593][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3451.504593][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3451.504593][   T73]      ___sys_sendmsg+0xee/0x170
[ 3451.504593][   T73]      __sys_sendmsg+0xcd/0x170
[ 3451.504593][   T73]      do_syscall_64+0xc6/0x1e0
[ 3451.504593][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3451.504593][   T73] 
[ 3451.506922][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3451.506922][   T73]      netdev_get_by_index+0x5e/0x80
[ 3451.506922][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3451.506922][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3451.506922][   T73]      ip6_route_add+0x1c/0x140
[ 3451.506922][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3451.506922][   T73]      addrconf_add_dev+0xe2/0x170
[ 3451.506922][   T73]      inet6_addr_add+0x12f/0xa40
[ 3451.506922][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3451.506922][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3451.506922][   T73]      netlink_rcv_skb+0x130/0x360
[ 3451.506922][   T73]      netlink_unicast+0x449/0x710
[ 3451.506922][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3451.506922][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3451.506922][   T73]      ___sys_sendmsg+0xee/0x170
[ 3451.506922][   T73]      __sys_sendmsg+0xcd/0x170
[ 3451.506922][   T73]      do_syscall_64+0xc6/0x1e0
[ 3451.506922][   T73] 
[ 3451.509173][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3451.509173][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3451.509173][   T73]      ipv6_find_idev+0x102/0x170
[ 3451.509173][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3451.509173][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3451.509173][   T73]      netlink_rcv_skb+0x130/0x360
[ 3451.509173][   T73]      netlink_unicast+0x449/0x710
[ 3451.509173][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3451.509173][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3451.509173][   T73]      ___sys_sendmsg+0xee/0x170
[ 3451.509173][   T73]      __sys_sendmsg+0xcd/0x170
[ 3451.509173][   T73]      do_syscall_64+0xc6/0x1e0
[ 3451.509173][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3451.509173][   T73] 
[ 3451.510905][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3451.510905][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3451.510905][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3451.510905][   T73]      ipv6_find_idev+0x102/0x170
[ 3451.510905][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3451.510905][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3451.510905][   T73]      netlink_rcv_skb+0x130/0x360
[ 3451.510905][   T73]      netlink_unicast+0x449/0x710
[ 3451.510905][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3451.510905][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3451.510905][   T73]      ___sys_sendmsg+0xee/0x170
[ 3451.510905][   T73]      __sys_sendmsg+0xcd/0x170
[ 3451.510905][   T73]      do_syscall_64+0xc6/0x1e0
[ 3451.510905][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3451.510905][   T73] 
[ 3461.607739][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3461.608201][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3461.608201][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3461.608201][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3461.608201][   T73]      fib6_nh_init+0xa22/0x1580
[ 3461.608201][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3461.608201][   T73]      ip6_route_add+0x1c/0x140
[ 3461.608201][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3461.608201][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3461.608201][   T73]      netlink_rcv_skb+0x130/0x360
[ 3461.608201][   T73]      netlink_unicast+0x449/0x710
[ 3461.608201][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3461.608201][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3461.608201][   T73]      ___sys_sendmsg+0xee/0x170
[ 3461.608201][   T73]      __sys_sendmsg+0xcd/0x170
[ 3461.608201][   T73]      do_syscall_64+0xc6/0x1e0
[ 3461.608201][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3461.608201][   T73] 
[ 3461.610158][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3461.610158][   T73]      dst_init+0x84/0x4a0
[ 3461.610158][   T73]      dst_alloc+0x97/0x150
[ 3461.610158][   T73]      ip6_dst_alloc+0x23/0x90
[ 3461.610158][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3461.610158][   T73]      ip6_pol_route+0x56f/0x840
[ 3461.610158][   T73]      fib6_rule_lookup+0x456/0x630
[ 3461.610158][   T73]      ip6_route_input+0x59c/0xa50
[ 3461.610158][   T73]      ipv6_rcv+0x397/0x810
[ 3461.610158][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3461.610158][   T73]      process_backlog+0x101/0x620
[ 3461.610158][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3461.610158][   T73]      net_rx_action+0x495/0xbe0
[ 3461.610158][   T73]      __do_softirq+0x1b5/0x7f6
[ 3461.610158][   T73] 
[ 3461.611807][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3461.611807][   T73]      netdev_get_by_index+0x5e/0x80
[ 3461.611807][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3461.611807][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3461.611807][   T73]      ip6_route_add+0x1c/0x140
[ 3461.611807][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3461.611807][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3461.611807][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3461.611807][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3461.611807][   T73]      netlink_rcv_skb+0x130/0x360
[ 3461.611807][   T73]      netlink_unicast+0x449/0x710
[ 3461.611807][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3461.611807][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3461.611807][   T73]      ___sys_sendmsg+0xee/0x170
[ 3461.611807][   T73]      __sys_sendmsg+0xcd/0x170
[ 3461.611807][   T73]      do_syscall_64+0xc6/0x1e0
[ 3461.611807][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3461.611807][   T73] 
[ 3461.613819][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3461.613819][   T73]      netdev_get_by_index+0x5e/0x80
[ 3461.613819][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3461.613819][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3461.613819][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3461.613819][   T73]      ipv6_add_addr+0x411/0x2000
[ 3461.613819][   T73]      inet6_addr_add+0x30e/0xa40
[ 3461.613819][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3461.613819][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3461.613819][   T73]      netlink_rcv_skb+0x130/0x360
[ 3461.613819][   T73]      netlink_unicast+0x449/0x710
[ 3461.613819][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3461.613819][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3461.613819][   T73]      ___sys_sendmsg+0xee/0x170
[ 3461.613819][   T73]      __sys_sendmsg+0xcd/0x170
[ 3461.613819][   T73]      do_syscall_64+0xc6/0x1e0
[ 3461.613819][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3461.613819][   T73] 
[ 3461.615826][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3461.615826][   T73]      netdev_get_by_index+0x5e/0x80
[ 3461.615826][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3461.615826][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3461.615826][   T73]      ip6_route_add+0x1c/0x140
[ 3461.615826][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3461.615826][   T73]      addrconf_add_dev+0xe2/0x170
[ 3461.615826][   T73]      inet6_addr_add+0x12f/0xa40
[ 3461.615826][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3461.615826][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3461.615826][   T73]      netlink_rcv_skb+0x130/0x360
[ 3461.615826][   T73]      netlink_unicast+0x449/0x710
[ 3461.615826][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3461.615826][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3461.615826][   T73]      ___sys_sendmsg+0xee/0x170
[ 3461.615826][   T73]      __sys_sendmsg+0xcd/0x170
[ 3461.615826][   T73]      do_syscall_64+0xc6/0x1e0
[ 3461.615826][   T73] 
[ 3461.617811][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3461.617811][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3461.617811][   T73]      ipv6_find_idev+0x102/0x170
[ 3461.617811][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3461.617811][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3461.617811][   T73]      netlink_rcv_skb+0x130/0x360
[ 3461.617811][   T73]      netlink_unicast+0x449/0x710
[ 3461.617811][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3461.617811][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3461.617811][   T73]      ___sys_sendmsg+0xee/0x170
[ 3461.617811][   T73]      __sys_sendmsg+0xcd/0x170
[ 3461.617811][   T73]      do_syscall_64+0xc6/0x1e0
[ 3461.617811][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3461.617811][   T73] 
[ 3461.619401][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3461.619401][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3461.619401][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3461.619401][   T73]      ipv6_find_idev+0x102/0x170
[ 3461.619401][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3461.619401][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3461.619401][   T73]      netlink_rcv_skb+0x130/0x360
[ 3461.619401][   T73]      netlink_unicast+0x449/0x710
[ 3461.619401][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3461.619401][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3461.619401][   T73]      ___sys_sendmsg+0xee/0x170
[ 3461.619401][   T73]      __sys_sendmsg+0xcd/0x170
[ 3461.619401][   T73]      do_syscall_64+0xc6/0x1e0
[ 3461.619401][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3461.619401][   T73] 
[ 3461.621118][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3461.621397][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3461.621397][   T73]      netdev_get_by_index+0x5e/0x80
[ 3461.621397][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3461.621397][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3461.621397][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3461.621397][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3461.621397][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3461.621397][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3461.621397][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3461.621397][   T73]      addrconf_dad_begin+0x310/0x670
[ 3461.621397][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3461.621397][   T73]      process_one_work+0x84d/0x18a0
[ 3461.621397][   T73]      worker_thread+0x587/0xd30
[ 3461.621397][   T73]      kthread+0x28a/0x350
[ 3461.621397][   T73]      ret_from_fork+0x31/0x70
[ 3461.621397][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3461.621397][   T73] 
[ 3461.623341][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3461.623341][   T73]      netdev_get_by_index+0x5e/0x80
[ 3461.623341][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3461.623341][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3461.623341][   T73]      ip6_route_add+0x1c/0x140
[ 3461.623341][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3461.623341][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3461.623341][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3461.623341][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3461.623341][   T73]      netlink_rcv_skb+0x130/0x360
[ 3461.623341][   T73]      netlink_unicast+0x449/0x710
[ 3461.623341][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3461.623341][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3461.623341][   T73]      ___sys_sendmsg+0xee/0x170
[ 3461.623341][   T73]      __sys_sendmsg+0xcd/0x170
[ 3461.623341][   T73]      do_syscall_64+0xc6/0x1e0
[ 3461.623341][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3461.623341][   T73] 
[ 3461.627571][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3461.627571][   T73]      netdev_get_by_index+0x5e/0x80
[ 3461.627571][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3461.627571][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3461.627571][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3461.627571][   T73]      ipv6_add_addr+0x411/0x2000
[ 3461.627571][   T73]      inet6_addr_add+0x30e/0xa40
[ 3461.627571][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3461.627571][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3461.627571][   T73]      netlink_rcv_skb+0x130/0x360
[ 3461.627571][   T73]      netlink_unicast+0x449/0x710
[ 3461.627571][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3461.627571][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3461.627571][   T73]      ___sys_sendmsg+0xee/0x170
[ 3461.627571][   T73]      __sys_sendmsg+0xcd/0x170
[ 3461.627571][   T73]      do_syscall_64+0xc6/0x1e0
[ 3461.627571][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3461.627571][   T73] 
[ 3461.629588][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3461.629588][   T73]      netdev_get_by_index+0x5e/0x80
[ 3461.629588][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3461.629588][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3461.629588][   T73]      ip6_route_add+0x1c/0x140
[ 3461.629588][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3461.629588][   T73]      addrconf_add_dev+0xe2/0x170
[ 3461.629588][   T73]      inet6_addr_add+0x12f/0xa40
[ 3461.629588][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3461.629588][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3461.629588][   T73]      netlink_rcv_skb+0x130/0x360
[ 3461.629588][   T73]      netlink_unicast+0x449/0x710
[ 3461.629588][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3461.629588][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3461.629588][   T73]      ___sys_sendmsg+0xee/0x170
[ 3461.629588][   T73]      __sys_sendmsg+0xcd/0x170
[ 3461.629588][   T73]      do_syscall_64+0xc6/0x1e0
[ 3461.629588][   T73] 
[ 3461.631569][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3461.631569][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3461.631569][   T73]      ipv6_find_idev+0x102/0x170
[ 3461.631569][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3461.631569][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3461.631569][   T73]      netlink_rcv_skb+0x130/0x360
[ 3461.631569][   T73]      netlink_unicast+0x449/0x710
[ 3461.631569][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3461.631569][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3461.631569][   T73]      ___sys_sendmsg+0xee/0x170
[ 3461.631569][   T73]      __sys_sendmsg+0xcd/0x170
[ 3461.631569][   T73]      do_syscall_64+0xc6/0x1e0
[ 3461.631569][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3461.631569][   T73] 
[ 3461.634765][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3461.634765][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3461.634765][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3461.634765][   T73]      ipv6_find_idev+0x102/0x170
[ 3461.634765][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3461.634765][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3461.634765][   T73]      netlink_rcv_skb+0x130/0x360
[ 3461.634765][   T73]      netlink_unicast+0x449/0x710
[ 3461.634765][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3461.634765][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3461.634765][   T73]      ___sys_sendmsg+0xee/0x170
[ 3461.634765][   T73]      __sys_sendmsg+0xcd/0x170
[ 3461.634765][   T73]      do_syscall_64+0xc6/0x1e0
[ 3461.634765][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3461.634765][   T73] 
[ 3461.636480][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3461.636763][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3461.636763][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3461.636763][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3461.636763][   T73]      fib6_nh_init+0xa22/0x1580
[ 3461.636763][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3461.636763][   T73]      ip6_route_add+0x1c/0x140
[ 3461.636763][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3461.636763][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3461.636763][   T73]      netlink_rcv_skb+0x130/0x360
[ 3461.636763][   T73]      netlink_unicast+0x449/0x710
[ 3461.636763][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3461.636763][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3461.636763][   T73]      ___sys_sendmsg+0xee/0x170
[ 3461.636763][   T73]      __sys_sendmsg+0xcd/0x170
[ 3461.636763][   T73]      do_syscall_64+0xc6/0x1e0
[ 3461.636763][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3461.636763][   T73] 
[ 3461.638862][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3461.638862][   T73]      dst_init+0x84/0x4a0
[ 3461.638862][   T73]      dst_alloc+0x97/0x150
[ 3461.638862][   T73]      ip6_dst_alloc+0x23/0x90
[ 3461.638862][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3461.638862][   T73]      ip6_pol_route+0x56f/0x840
[ 3461.638862][   T73]      fib6_rule_lookup+0x456/0x630
[ 3461.638862][   T73]      ip6_route_input+0x59c/0xa50
[ 3461.638862][   T73]      ipv6_rcv+0x397/0x810
[ 3461.638862][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3461.638862][   T73]      process_backlog+0x101/0x620
[ 3461.638862][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3461.638862][   T73]      net_rx_action+0x495/0xbe0
[ 3461.638862][   T73]      __do_softirq+0x1b5/0x7f6
[ 3461.638862][   T73] 
[ 3461.640696][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3461.640696][   T73]      netdev_get_by_index+0x5e/0x80
[ 3461.640696][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3461.640696][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3461.640696][   T73]      ip6_route_add+0x1c/0x140
[ 3461.640696][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3461.640696][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3461.640696][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3461.640696][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3461.640696][   T73]      netlink_rcv_skb+0x130/0x360
[ 3461.640696][   T73]      netlink_unicast+0x449/0x710
[ 3461.640696][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3461.640696][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3461.640696][   T73]      ___sys_sendmsg+0xee/0x170
[ 3461.640696][   T73]      __sys_sendmsg+0xcd/0x170
[ 3461.640696][   T73]      do_syscall_64+0xc6/0x1e0
[ 3461.640696][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3461.640696][   T73] 
[ 3461.642970][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3461.642970][   T73]      netdev_get_by_index+0x5e/0x80
[ 3461.642970][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3461.642970][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3461.642970][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3461.642970][   T73]      ipv6_add_addr+0x411/0x2000
[ 3461.642970][   T73]      inet6_addr_add+0x30e/0xa40
[ 3461.642970][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3461.642970][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3461.642970][   T73]      netlink_rcv_skb+0x130/0x360
[ 3461.642970][   T73]      netlink_unicast+0x449/0x710
[ 3461.642970][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3461.642970][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3461.642970][   T73]      ___sys_sendmsg+0xee/0x170
[ 3461.642970][   T73]      __sys_sendmsg+0xcd/0x170
[ 3461.642970][   T73]      do_syscall_64+0xc6/0x1e0
[ 3461.642970][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3461.642970][   T73] 
[ 3461.645278][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3461.645278][   T73]      netdev_get_by_index+0x5e/0x80
[ 3461.645278][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3461.645278][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3461.645278][   T73]      ip6_route_add+0x1c/0x140
[ 3461.645278][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3461.645278][   T73]      addrconf_add_dev+0xe2/0x170
[ 3461.645278][   T73]      inet6_addr_add+0x12f/0xa40
[ 3461.645278][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3461.645278][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3461.645278][   T73]      netlink_rcv_skb+0x130/0x360
[ 3461.645278][   T73]      netlink_unicast+0x449/0x710
[ 3461.645278][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3461.645278][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3461.645278][   T73]      ___sys_sendmsg+0xee/0x170
[ 3461.645278][   T73]      __sys_sendmsg+0xcd/0x170
[ 3461.645278][   T73]      do_syscall_64+0xc6/0x1e0
[ 3461.645278][   T73] 
[ 3461.647518][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3461.647518][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3461.647518][   T73]      ipv6_find_idev+0x102/0x170
[ 3461.647518][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3461.647518][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3461.647518][   T73]      netlink_rcv_skb+0x130/0x360
[ 3461.647518][   T73]      netlink_unicast+0x449/0x710
[ 3461.647518][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3461.647518][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3461.647518][   T73]      ___sys_sendmsg+0xee/0x170
[ 3461.647518][   T73]      __sys_sendmsg+0xcd/0x170
[ 3461.647518][   T73]      do_syscall_64+0xc6/0x1e0
[ 3461.647518][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3461.647518][   T73] 
[ 3461.649292][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3461.649292][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3461.649292][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3461.649292][   T73]      ipv6_find_idev+0x102/0x170
[ 3461.649292][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3461.649292][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3461.649292][   T73]      netlink_rcv_skb+0x130/0x360
[ 3461.649292][   T73]      netlink_unicast+0x449/0x710
[ 3461.649292][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3461.649292][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3461.649292][   T73]      ___sys_sendmsg+0xee/0x170
[ 3461.649292][   T73]      __sys_sendmsg+0xcd/0x170
[ 3461.649292][   T73]      do_syscall_64+0xc6/0x1e0
[ 3461.649292][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3461.649292][   T73] 
[ 3461.651187][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3461.651524][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3461.651524][   T73]      netdev_get_by_index+0x5e/0x80
[ 3461.651524][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3461.651524][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3461.651524][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3461.651524][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3461.651524][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3461.651524][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3461.651524][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3461.651524][   T73]      addrconf_dad_begin+0x310/0x670
[ 3461.651524][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3461.651524][   T73]      process_one_work+0x84d/0x18a0
[ 3461.651524][   T73]      worker_thread+0x587/0xd30
[ 3461.651524][   T73]      kthread+0x28a/0x350
[ 3461.651524][   T73]      ret_from_fork+0x31/0x70
[ 3461.651524][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3461.651524][   T73] 
[ 3461.653643][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3461.653643][   T73]      netdev_get_by_index+0x5e/0x80
[ 3461.653643][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3461.653643][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3461.653643][   T73]      ip6_route_add+0x1c/0x140
[ 3461.653643][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3461.653643][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3461.653643][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3461.653643][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3461.653643][   T73]      netlink_rcv_skb+0x130/0x360
[ 3461.653643][   T73]      netlink_unicast+0x449/0x710
[ 3461.653643][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3461.653643][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3461.653643][   T73]      ___sys_sendmsg+0xee/0x170
[ 3461.653643][   T73]      __sys_sendmsg+0xcd/0x170
[ 3461.653643][   T73]      do_syscall_64+0xc6/0x1e0
[ 3461.653643][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3461.653643][   T73] 
[ 3461.655902][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3461.655902][   T73]      netdev_get_by_index+0x5e/0x80
[ 3461.655902][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3461.655902][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3461.655902][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3461.655902][   T73]      ipv6_add_addr+0x411/0x2000
[ 3461.655902][   T73]      inet6_addr_add+0x30e/0xa40
[ 3461.655902][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3461.655902][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3461.655902][   T73]      netlink_rcv_skb+0x130/0x360
[ 3461.655902][   T73]      netlink_unicast+0x449/0x710
[ 3461.655902][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3461.655902][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3461.655902][   T73]      ___sys_sendmsg+0xee/0x170
[ 3461.655902][   T73]      __sys_sendmsg+0xcd/0x170
[ 3461.655902][   T73]      do_syscall_64+0xc6/0x1e0
[ 3461.655902][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3461.655902][   T73] 
[ 3461.658157][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3461.658157][   T73]      netdev_get_by_index+0x5e/0x80
[ 3461.658157][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3461.658157][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3461.658157][   T73]      ip6_route_add+0x1c/0x140
[ 3461.658157][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3461.658157][   T73]      addrconf_add_dev+0xe2/0x170
[ 3461.658157][   T73]      inet6_addr_add+0x12f/0xa40
[ 3461.658157][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3461.658157][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3461.658157][   T73]      netlink_rcv_skb+0x130/0x360
[ 3461.658157][   T73]      netlink_unicast+0x449/0x710
[ 3461.658157][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3461.658157][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3461.658157][   T73]      ___sys_sendmsg+0xee/0x170
[ 3461.658157][   T73]      __sys_sendmsg+0xcd/0x170
[ 3461.658157][   T73]      do_syscall_64+0xc6/0x1e0
[ 3461.658157][   T73] 
[ 3461.660393][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3461.660393][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3461.660393][   T73]      ipv6_find_idev+0x102/0x170
[ 3461.660393][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3461.660393][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3461.660393][   T73]      netlink_rcv_skb+0x130/0x360
[ 3461.660393][   T73]      netlink_unicast+0x449/0x710
[ 3461.660393][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3461.660393][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3461.660393][   T73]      ___sys_sendmsg+0xee/0x170
[ 3461.660393][   T73]      __sys_sendmsg+0xcd/0x170
[ 3461.660393][   T73]      do_syscall_64+0xc6/0x1e0
[ 3461.660393][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3461.660393][   T73] 
[ 3461.662125][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3461.662125][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3461.662125][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3461.662125][   T73]      ipv6_find_idev+0x102/0x170
[ 3461.662125][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3461.662125][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3461.662125][   T73]      netlink_rcv_skb+0x130/0x360
[ 3461.662125][   T73]      netlink_unicast+0x449/0x710
[ 3461.662125][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3461.662125][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3461.662125][   T73]      ___sys_sendmsg+0xee/0x170
[ 3461.662125][   T73]      __sys_sendmsg+0xcd/0x170
[ 3461.662125][   T73]      do_syscall_64+0xc6/0x1e0
[ 3461.662125][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3461.662125][   T73] 
[ 3471.703861][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3471.704350][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3471.704350][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3471.704350][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3471.704350][   T73]      fib6_nh_init+0xa22/0x1580
[ 3471.704350][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3471.704350][   T73]      ip6_route_add+0x1c/0x140
[ 3471.704350][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3471.704350][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3471.704350][   T73]      netlink_rcv_skb+0x130/0x360
[ 3471.704350][   T73]      netlink_unicast+0x449/0x710
[ 3471.704350][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3471.704350][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3471.704350][   T73]      ___sys_sendmsg+0xee/0x170
[ 3471.704350][   T73]      __sys_sendmsg+0xcd/0x170
[ 3471.704350][   T73]      do_syscall_64+0xc6/0x1e0
[ 3471.704350][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3471.704350][   T73] 
[ 3471.706292][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3471.706292][   T73]      dst_init+0x84/0x4a0
[ 3471.706292][   T73]      dst_alloc+0x97/0x150
[ 3471.706292][   T73]      ip6_dst_alloc+0x23/0x90
[ 3471.706292][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3471.706292][   T73]      ip6_pol_route+0x56f/0x840
[ 3471.706292][   T73]      fib6_rule_lookup+0x456/0x630
[ 3471.706292][   T73]      ip6_route_input+0x59c/0xa50
[ 3471.706292][   T73]      ipv6_rcv+0x397/0x810
[ 3471.706292][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3471.706292][   T73]      process_backlog+0x101/0x620
[ 3471.706292][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3471.706292][   T73]      net_rx_action+0x495/0xbe0
[ 3471.706292][   T73]      __do_softirq+0x1b5/0x7f6
[ 3471.706292][   T73] 
[ 3471.707959][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3471.707959][   T73]      netdev_get_by_index+0x5e/0x80
[ 3471.707959][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3471.707959][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3471.707959][   T73]      ip6_route_add+0x1c/0x140
[ 3471.707959][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3471.707959][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3471.707959][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3471.707959][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3471.707959][   T73]      netlink_rcv_skb+0x130/0x360
[ 3471.707959][   T73]      netlink_unicast+0x449/0x710
[ 3471.707959][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3471.707959][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3471.707959][   T73]      ___sys_sendmsg+0xee/0x170
[ 3471.707959][   T73]      __sys_sendmsg+0xcd/0x170
[ 3471.707959][   T73]      do_syscall_64+0xc6/0x1e0
[ 3471.707959][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3471.707959][   T73] 
[ 3471.710005][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3471.710005][   T73]      netdev_get_by_index+0x5e/0x80
[ 3471.710005][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3471.710005][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3471.710005][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3471.710005][   T73]      ipv6_add_addr+0x411/0x2000
[ 3471.710005][   T73]      inet6_addr_add+0x30e/0xa40
[ 3471.710005][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3471.710005][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3471.710005][   T73]      netlink_rcv_skb+0x130/0x360
[ 3471.710005][   T73]      netlink_unicast+0x449/0x710
[ 3471.710005][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3471.710005][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3471.710005][   T73]      ___sys_sendmsg+0xee/0x170
[ 3471.710005][   T73]      __sys_sendmsg+0xcd/0x170
[ 3471.710005][   T73]      do_syscall_64+0xc6/0x1e0
[ 3471.710005][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3471.710005][   T73] 
[ 3471.712033][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3471.712033][   T73]      netdev_get_by_index+0x5e/0x80
[ 3471.712033][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3471.712033][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3471.712033][   T73]      ip6_route_add+0x1c/0x140
[ 3471.712033][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3471.712033][   T73]      addrconf_add_dev+0xe2/0x170
[ 3471.712033][   T73]      inet6_addr_add+0x12f/0xa40
[ 3471.712033][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3471.712033][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3471.712033][   T73]      netlink_rcv_skb+0x130/0x360
[ 3471.712033][   T73]      netlink_unicast+0x449/0x710
[ 3471.712033][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3471.712033][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3471.712033][   T73]      ___sys_sendmsg+0xee/0x170
[ 3471.712033][   T73]      __sys_sendmsg+0xcd/0x170
[ 3471.712033][   T73]      do_syscall_64+0xc6/0x1e0
[ 3471.712033][   T73] 
[ 3471.714020][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3471.714020][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3471.714020][   T73]      ipv6_find_idev+0x102/0x170
[ 3471.714020][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3471.714020][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3471.714020][   T73]      netlink_rcv_skb+0x130/0x360
[ 3471.714020][   T73]      netlink_unicast+0x449/0x710
[ 3471.714020][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3471.714020][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3471.714020][   T73]      ___sys_sendmsg+0xee/0x170
[ 3471.714020][   T73]      __sys_sendmsg+0xcd/0x170
[ 3471.714020][   T73]      do_syscall_64+0xc6/0x1e0
[ 3471.714020][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3471.714020][   T73] 
[ 3471.715589][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3471.715589][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3471.715589][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3471.715589][   T73]      ipv6_find_idev+0x102/0x170
[ 3471.715589][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3471.715589][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3471.715589][   T73]      netlink_rcv_skb+0x130/0x360
[ 3471.715589][   T73]      netlink_unicast+0x449/0x710
[ 3471.715589][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3471.715589][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3471.715589][   T73]      ___sys_sendmsg+0xee/0x170
[ 3471.715589][   T73]      __sys_sendmsg+0xcd/0x170
[ 3471.715589][   T73]      do_syscall_64+0xc6/0x1e0
[ 3471.715589][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3471.715589][   T73] 
[ 3471.717321][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3471.717629][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3471.717629][   T73]      netdev_get_by_index+0x5e/0x80
[ 3471.717629][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3471.717629][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3471.717629][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3471.717629][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3471.717629][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3471.717629][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3471.717629][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3471.717629][   T73]      addrconf_dad_begin+0x310/0x670
[ 3471.717629][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3471.717629][   T73]      process_one_work+0x84d/0x18a0
[ 3471.717629][   T73]      worker_thread+0x587/0xd30
[ 3471.717629][   T73]      kthread+0x28a/0x350
[ 3471.717629][   T73]      ret_from_fork+0x31/0x70
[ 3471.717629][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3471.717629][   T73] 
[ 3471.721736][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3471.721736][   T73]      netdev_get_by_index+0x5e/0x80
[ 3471.721736][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3471.721736][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3471.721736][   T73]      ip6_route_add+0x1c/0x140
[ 3471.721736][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3471.721736][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3471.721736][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3471.721736][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3471.721736][   T73]      netlink_rcv_skb+0x130/0x360
[ 3471.721736][   T73]      netlink_unicast+0x449/0x710
[ 3471.721736][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3471.721736][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3471.721736][   T73]      ___sys_sendmsg+0xee/0x170
[ 3471.721736][   T73]      __sys_sendmsg+0xcd/0x170
[ 3471.721736][   T73]      do_syscall_64+0xc6/0x1e0
[ 3471.721736][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3471.721736][   T73] 
[ 3471.723765][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3471.723765][   T73]      netdev_get_by_index+0x5e/0x80
[ 3471.723765][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3471.723765][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3471.723765][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3471.723765][   T73]      ipv6_add_addr+0x411/0x2000
[ 3471.723765][   T73]      inet6_addr_add+0x30e/0xa40
[ 3471.723765][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3471.723765][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3471.723765][   T73]      netlink_rcv_skb+0x130/0x360
[ 3471.723765][   T73]      netlink_unicast+0x449/0x710
[ 3471.723765][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3471.723765][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3471.723765][   T73]      ___sys_sendmsg+0xee/0x170
[ 3471.723765][   T73]      __sys_sendmsg+0xcd/0x170
[ 3471.723765][   T73]      do_syscall_64+0xc6/0x1e0
[ 3471.723765][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3471.723765][   T73] 
[ 3471.725781][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3471.725781][   T73]      netdev_get_by_index+0x5e/0x80
[ 3471.725781][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3471.725781][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3471.725781][   T73]      ip6_route_add+0x1c/0x140
[ 3471.725781][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3471.725781][   T73]      addrconf_add_dev+0xe2/0x170
[ 3471.725781][   T73]      inet6_addr_add+0x12f/0xa40
[ 3471.725781][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3471.725781][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3471.725781][   T73]      netlink_rcv_skb+0x130/0x360
[ 3471.725781][   T73]      netlink_unicast+0x449/0x710
[ 3471.725781][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3471.725781][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3471.725781][   T73]      ___sys_sendmsg+0xee/0x170
[ 3471.725781][   T73]      __sys_sendmsg+0xcd/0x170
[ 3471.725781][   T73]      do_syscall_64+0xc6/0x1e0
[ 3471.725781][   T73] 
[ 3471.727758][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3471.727758][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3471.727758][   T73]      ipv6_find_idev+0x102/0x170
[ 3471.727758][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3471.727758][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3471.727758][   T73]      netlink_rcv_skb+0x130/0x360
[ 3471.727758][   T73]      netlink_unicast+0x449/0x710
[ 3471.727758][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3471.727758][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3471.727758][   T73]      ___sys_sendmsg+0xee/0x170
[ 3471.727758][   T73]      __sys_sendmsg+0xcd/0x170
[ 3471.727758][   T73]      do_syscall_64+0xc6/0x1e0
[ 3471.727758][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3471.727758][   T73] 
[ 3471.729314][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3471.729314][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3471.729314][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3471.729314][   T73]      ipv6_find_idev+0x102/0x170
[ 3471.729314][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3471.729314][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3471.729314][   T73]      netlink_rcv_skb+0x130/0x360
[ 3471.729314][   T73]      netlink_unicast+0x449/0x710
[ 3471.729314][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3471.729314][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3471.729314][   T73]      ___sys_sendmsg+0xee/0x170
[ 3471.729314][   T73]      __sys_sendmsg+0xcd/0x170
[ 3471.729314][   T73]      do_syscall_64+0xc6/0x1e0
[ 3471.729314][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3471.729314][   T73] 
[ 3471.731034][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3471.731310][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3471.731310][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3471.731310][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3471.731310][   T73]      fib6_nh_init+0xa22/0x1580
[ 3471.731310][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3471.731310][   T73]      ip6_route_add+0x1c/0x140
[ 3471.731310][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3471.731310][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3471.731310][   T73]      netlink_rcv_skb+0x130/0x360
[ 3471.731310][   T73]      netlink_unicast+0x449/0x710
[ 3471.731310][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3471.731310][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3471.731310][   T73]      ___sys_sendmsg+0xee/0x170
[ 3471.731310][   T73]      __sys_sendmsg+0xcd/0x170
[ 3471.731310][   T73]      do_syscall_64+0xc6/0x1e0
[ 3471.731310][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3471.731310][   T73] 
[ 3471.733355][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3471.733355][   T73]      dst_init+0x84/0x4a0
[ 3471.733355][   T73]      dst_alloc+0x97/0x150
[ 3471.733355][   T73]      ip6_dst_alloc+0x23/0x90
[ 3471.733355][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3471.733355][   T73]      ip6_pol_route+0x56f/0x840
[ 3471.733355][   T73]      fib6_rule_lookup+0x456/0x630
[ 3471.733355][   T73]      ip6_route_input+0x59c/0xa50
[ 3471.733355][   T73]      ipv6_rcv+0x397/0x810
[ 3471.733355][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3471.733355][   T73]      process_backlog+0x101/0x620
[ 3471.733355][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3471.733355][   T73]      net_rx_action+0x495/0xbe0
[ 3471.733355][   T73]      __do_softirq+0x1b5/0x7f6
[ 3471.733355][   T73] 
[ 3471.735377][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3471.735377][   T73]      netdev_get_by_index+0x5e/0x80
[ 3471.735377][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3471.735377][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3471.735377][   T73]      ip6_route_add+0x1c/0x140
[ 3471.735377][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3471.735377][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3471.735377][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3471.735377][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3471.735377][   T73]      netlink_rcv_skb+0x130/0x360
[ 3471.735377][   T73]      netlink_unicast+0x449/0x710
[ 3471.735377][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3471.735377][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3471.735377][   T73]      ___sys_sendmsg+0xee/0x170
[ 3471.735377][   T73]      __sys_sendmsg+0xcd/0x170
[ 3471.735377][   T73]      do_syscall_64+0xc6/0x1e0
[ 3471.735377][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3471.735377][   T73] 
[ 3471.737820][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3471.737820][   T73]      netdev_get_by_index+0x5e/0x80
[ 3471.737820][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3471.737820][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3471.737820][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3471.737820][   T73]      ipv6_add_addr+0x411/0x2000
[ 3471.737820][   T73]      inet6_addr_add+0x30e/0xa40
[ 3471.737820][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3471.737820][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3471.737820][   T73]      netlink_rcv_skb+0x130/0x360
[ 3471.737820][   T73]      netlink_unicast+0x449/0x710
[ 3471.737820][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3471.737820][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3471.737820][   T73]      ___sys_sendmsg+0xee/0x170
[ 3471.737820][   T73]      __sys_sendmsg+0xcd/0x170
[ 3471.737820][   T73]      do_syscall_64+0xc6/0x1e0
[ 3471.737820][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3471.737820][   T73] 
[ 3471.740183][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3471.740183][   T73]      netdev_get_by_index+0x5e/0x80
[ 3471.740183][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3471.740183][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3471.740183][   T73]      ip6_route_add+0x1c/0x140
[ 3471.740183][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3471.740183][   T73]      addrconf_add_dev+0xe2/0x170
[ 3471.740183][   T73]      inet6_addr_add+0x12f/0xa40
[ 3471.740183][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3471.740183][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3471.740183][   T73]      netlink_rcv_skb+0x130/0x360
[ 3471.740183][   T73]      netlink_unicast+0x449/0x710
[ 3471.740183][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3471.740183][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3471.740183][   T73]      ___sys_sendmsg+0xee/0x170
[ 3471.740183][   T73]      __sys_sendmsg+0xcd/0x170
[ 3471.740183][   T73]      do_syscall_64+0xc6/0x1e0
[ 3471.740183][   T73] 
[ 3471.742578][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3471.742578][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3471.742578][   T73]      ipv6_find_idev+0x102/0x170
[ 3471.742578][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3471.742578][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3471.742578][   T73]      netlink_rcv_skb+0x130/0x360
[ 3471.742578][   T73]      netlink_unicast+0x449/0x710
[ 3471.742578][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3471.742578][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3471.742578][   T73]      ___sys_sendmsg+0xee/0x170
[ 3471.742578][   T73]      __sys_sendmsg+0xcd/0x170
[ 3471.742578][   T73]      do_syscall_64+0xc6/0x1e0
[ 3471.742578][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3471.742578][   T73] 
[ 3471.744497][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3471.744497][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3471.744497][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3471.744497][   T73]      ipv6_find_idev+0x102/0x170
[ 3471.744497][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3471.744497][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3471.744497][   T73]      netlink_rcv_skb+0x130/0x360
[ 3471.744497][   T73]      netlink_unicast+0x449/0x710
[ 3471.744497][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3471.744497][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3471.744497][   T73]      ___sys_sendmsg+0xee/0x170
[ 3471.744497][   T73]      __sys_sendmsg+0xcd/0x170
[ 3471.744497][   T73]      do_syscall_64+0xc6/0x1e0
[ 3471.744497][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3471.744497][   T73] 
[ 3471.746540][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3471.747351][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3471.747351][   T73]      netdev_get_by_index+0x5e/0x80
[ 3471.747351][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3471.747351][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3471.747351][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3471.747351][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3471.747351][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3471.747351][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3471.747351][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3471.747351][   T73]      addrconf_dad_begin+0x310/0x670
[ 3471.747351][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3471.747351][   T73]      process_one_work+0x84d/0x18a0
[ 3471.747351][   T73]      worker_thread+0x587/0xd30
[ 3471.747351][   T73]      kthread+0x28a/0x350
[ 3471.747351][   T73]      ret_from_fork+0x31/0x70
[ 3471.747351][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3471.747351][   T73] 
[ 3471.749484][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3471.749484][   T73]      netdev_get_by_index+0x5e/0x80
[ 3471.749484][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3471.749484][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3471.749484][   T73]      ip6_route_add+0x1c/0x140
[ 3471.749484][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3471.749484][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3471.749484][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3471.749484][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3471.749484][   T73]      netlink_rcv_skb+0x130/0x360
[ 3471.749484][   T73]      netlink_unicast+0x449/0x710
[ 3471.749484][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3471.749484][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3471.749484][   T73]      ___sys_sendmsg+0xee/0x170
[ 3471.749484][   T73]      __sys_sendmsg+0xcd/0x170
[ 3471.749484][   T73]      do_syscall_64+0xc6/0x1e0
[ 3471.749484][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3471.749484][   T73] 
[ 3471.751706][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3471.751706][   T73]      netdev_get_by_index+0x5e/0x80
[ 3471.751706][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3471.751706][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3471.751706][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3471.751706][   T73]      ipv6_add_addr+0x411/0x2000
[ 3471.751706][   T73]      inet6_addr_add+0x30e/0xa40
[ 3471.751706][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3471.751706][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3471.751706][   T73]      netlink_rcv_skb+0x130/0x360
[ 3471.751706][   T73]      netlink_unicast+0x449/0x710
[ 3471.751706][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3471.751706][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3471.751706][   T73]      ___sys_sendmsg+0xee/0x170
[ 3471.751706][   T73]      __sys_sendmsg+0xcd/0x170
[ 3471.751706][   T73]      do_syscall_64+0xc6/0x1e0
[ 3471.751706][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3471.751706][   T73] 
[ 3471.754178][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3471.754178][   T73]      netdev_get_by_index+0x5e/0x80
[ 3471.754178][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3471.754178][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3471.754178][   T73]      ip6_route_add+0x1c/0x140
[ 3471.754178][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3471.754178][   T73]      addrconf_add_dev+0xe2/0x170
[ 3471.754178][   T73]      inet6_addr_add+0x12f/0xa40
[ 3471.754178][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3471.754178][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3471.754178][   T73]      netlink_rcv_skb+0x130/0x360
[ 3471.754178][   T73]      netlink_unicast+0x449/0x710
[ 3471.754178][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3471.754178][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3471.754178][   T73]      ___sys_sendmsg+0xee/0x170
[ 3471.754178][   T73]      __sys_sendmsg+0xcd/0x170
[ 3471.754178][   T73]      do_syscall_64+0xc6/0x1e0
[ 3471.754178][   T73] 
[ 3471.756588][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3471.756588][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3471.756588][   T73]      ipv6_find_idev+0x102/0x170
[ 3471.756588][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3471.756588][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3471.756588][   T73]      netlink_rcv_skb+0x130/0x360
[ 3471.756588][   T73]      netlink_unicast+0x449/0x710
[ 3471.756588][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3471.756588][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3471.756588][   T73]      ___sys_sendmsg+0xee/0x170
[ 3471.756588][   T73]      __sys_sendmsg+0xcd/0x170
[ 3471.756588][   T73]      do_syscall_64+0xc6/0x1e0
[ 3471.756588][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3471.756588][   T73] 
[ 3471.758548][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3471.758548][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3471.758548][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3471.758548][   T73]      ipv6_find_idev+0x102/0x170
[ 3471.758548][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3471.758548][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3471.758548][   T73]      netlink_rcv_skb+0x130/0x360
[ 3471.758548][   T73]      netlink_unicast+0x449/0x710
[ 3471.758548][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3471.758548][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3471.758548][   T73]      ___sys_sendmsg+0xee/0x170
[ 3471.758548][   T73]      __sys_sendmsg+0xcd/0x170
[ 3471.758548][   T73]      do_syscall_64+0xc6/0x1e0
[ 3471.758548][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3471.758548][   T73] 
[ 3481.791812][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3481.792288][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3481.792288][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3481.792288][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3481.792288][   T73]      fib6_nh_init+0xa22/0x1580
[ 3481.792288][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3481.792288][   T73]      ip6_route_add+0x1c/0x140
[ 3481.792288][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3481.792288][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3481.792288][   T73]      netlink_rcv_skb+0x130/0x360
[ 3481.792288][   T73]      netlink_unicast+0x449/0x710
[ 3481.792288][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3481.792288][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3481.792288][   T73]      ___sys_sendmsg+0xee/0x170
[ 3481.792288][   T73]      __sys_sendmsg+0xcd/0x170
[ 3481.792288][   T73]      do_syscall_64+0xc6/0x1e0
[ 3481.792288][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3481.792288][   T73] 
[ 3481.794416][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3481.794416][   T73]      dst_init+0x84/0x4a0
[ 3481.794416][   T73]      dst_alloc+0x97/0x150
[ 3481.794416][   T73]      ip6_dst_alloc+0x23/0x90
[ 3481.794416][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3481.794416][   T73]      ip6_pol_route+0x56f/0x840
[ 3481.794416][   T73]      fib6_rule_lookup+0x456/0x630
[ 3481.794416][   T73]      ip6_route_input+0x59c/0xa50
[ 3481.794416][   T73]      ipv6_rcv+0x397/0x810
[ 3481.794416][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3481.794416][   T73]      process_backlog+0x101/0x620
[ 3481.794416][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3481.794416][   T73]      net_rx_action+0x495/0xbe0
[ 3481.794416][   T73]      __do_softirq+0x1b5/0x7f6
[ 3481.794416][   T73] 
[ 3481.796245][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3481.796245][   T73]      netdev_get_by_index+0x5e/0x80
[ 3481.796245][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3481.796245][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3481.796245][   T73]      ip6_route_add+0x1c/0x140
[ 3481.796245][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3481.796245][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3481.796245][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3481.796245][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3481.796245][   T73]      netlink_rcv_skb+0x130/0x360
[ 3481.796245][   T73]      netlink_unicast+0x449/0x710
[ 3481.796245][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3481.796245][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3481.796245][   T73]      ___sys_sendmsg+0xee/0x170
[ 3481.796245][   T73]      __sys_sendmsg+0xcd/0x170
[ 3481.796245][   T73]      do_syscall_64+0xc6/0x1e0
[ 3481.796245][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3481.796245][   T73] 
[ 3481.798459][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3481.798459][   T73]      netdev_get_by_index+0x5e/0x80
[ 3481.798459][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3481.798459][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3481.798459][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3481.798459][   T73]      ipv6_add_addr+0x411/0x2000
[ 3481.798459][   T73]      inet6_addr_add+0x30e/0xa40
[ 3481.798459][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3481.798459][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3481.798459][   T73]      netlink_rcv_skb+0x130/0x360
[ 3481.798459][   T73]      netlink_unicast+0x449/0x710
[ 3481.798459][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3481.798459][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3481.798459][   T73]      ___sys_sendmsg+0xee/0x170
[ 3481.798459][   T73]      __sys_sendmsg+0xcd/0x170
[ 3481.798459][   T73]      do_syscall_64+0xc6/0x1e0
[ 3481.798459][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3481.798459][   T73] 
[ 3481.800671][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3481.800671][   T73]      netdev_get_by_index+0x5e/0x80
[ 3481.800671][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3481.800671][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3481.800671][   T73]      ip6_route_add+0x1c/0x140
[ 3481.800671][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3481.800671][   T73]      addrconf_add_dev+0xe2/0x170
[ 3481.800671][   T73]      inet6_addr_add+0x12f/0xa40
[ 3481.800671][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3481.800671][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3481.800671][   T73]      netlink_rcv_skb+0x130/0x360
[ 3481.800671][   T73]      netlink_unicast+0x449/0x710
[ 3481.800671][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3481.800671][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3481.800671][   T73]      ___sys_sendmsg+0xee/0x170
[ 3481.800671][   T73]      __sys_sendmsg+0xcd/0x170
[ 3481.800671][   T73]      do_syscall_64+0xc6/0x1e0
[ 3481.800671][   T73] 
[ 3481.802825][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3481.802825][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3481.802825][   T73]      ipv6_find_idev+0x102/0x170
[ 3481.802825][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3481.802825][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3481.802825][   T73]      netlink_rcv_skb+0x130/0x360
[ 3481.802825][   T73]      netlink_unicast+0x449/0x710
[ 3481.802825][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3481.802825][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3481.802825][   T73]      ___sys_sendmsg+0xee/0x170
[ 3481.802825][   T73]      __sys_sendmsg+0xcd/0x170
[ 3481.802825][   T73]      do_syscall_64+0xc6/0x1e0
[ 3481.802825][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3481.802825][   T73] 
[ 3481.804579][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3481.804579][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3481.804579][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3481.804579][   T73]      ipv6_find_idev+0x102/0x170
[ 3481.804579][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3481.804579][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3481.804579][   T73]      netlink_rcv_skb+0x130/0x360
[ 3481.804579][   T73]      netlink_unicast+0x449/0x710
[ 3481.804579][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3481.804579][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3481.804579][   T73]      ___sys_sendmsg+0xee/0x170
[ 3481.804579][   T73]      __sys_sendmsg+0xcd/0x170
[ 3481.804579][   T73]      do_syscall_64+0xc6/0x1e0
[ 3481.804579][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3481.804579][   T73] 
[ 3481.806439][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3481.806763][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3481.806763][   T73]      netdev_get_by_index+0x5e/0x80
[ 3481.806763][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3481.806763][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3481.806763][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3481.806763][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3481.806763][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3481.806763][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3481.806763][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3481.806763][   T73]      addrconf_dad_begin+0x310/0x670
[ 3481.806763][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3481.806763][   T73]      process_one_work+0x84d/0x18a0
[ 3481.806763][   T73]      worker_thread+0x587/0xd30
[ 3481.806763][   T73]      kthread+0x28a/0x350
[ 3481.806763][   T73]      ret_from_fork+0x31/0x70
[ 3481.806763][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3481.806763][   T73] 
[ 3481.808840][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3481.808840][   T73]      netdev_get_by_index+0x5e/0x80
[ 3481.808840][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3481.808840][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3481.808840][   T73]      ip6_route_add+0x1c/0x140
[ 3481.808840][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3481.808840][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3481.808840][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3481.808840][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3481.808840][   T73]      netlink_rcv_skb+0x130/0x360
[ 3481.808840][   T73]      netlink_unicast+0x449/0x710
[ 3481.808840][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3481.808840][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3481.808840][   T73]      ___sys_sendmsg+0xee/0x170
[ 3481.808840][   T73]      __sys_sendmsg+0xcd/0x170
[ 3481.808840][   T73]      do_syscall_64+0xc6/0x1e0
[ 3481.808840][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3481.808840][   T73] 
[ 3481.811008][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3481.811008][   T73]      netdev_get_by_index+0x5e/0x80
[ 3481.811008][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3481.811008][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3481.811008][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3481.811008][   T73]      ipv6_add_addr+0x411/0x2000
[ 3481.811008][   T73]      inet6_addr_add+0x30e/0xa40
[ 3481.811008][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3481.811008][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3481.811008][   T73]      netlink_rcv_skb+0x130/0x360
[ 3481.811008][   T73]      netlink_unicast+0x449/0x710
[ 3481.811008][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3481.811008][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3481.811008][   T73]      ___sys_sendmsg+0xee/0x170
[ 3481.811008][   T73]      __sys_sendmsg+0xcd/0x170
[ 3481.811008][   T73]      do_syscall_64+0xc6/0x1e0
[ 3481.811008][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3481.811008][   T73] 
[ 3481.813256][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3481.813256][   T73]      netdev_get_by_index+0x5e/0x80
[ 3481.813256][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3481.813256][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3481.813256][   T73]      ip6_route_add+0x1c/0x140
[ 3481.813256][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3481.813256][   T73]      addrconf_add_dev+0xe2/0x170
[ 3481.813256][   T73]      inet6_addr_add+0x12f/0xa40
[ 3481.813256][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3481.813256][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3481.813256][   T73]      netlink_rcv_skb+0x130/0x360
[ 3481.813256][   T73]      netlink_unicast+0x449/0x710
[ 3481.813256][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3481.813256][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3481.813256][   T73]      ___sys_sendmsg+0xee/0x170
[ 3481.813256][   T73]      __sys_sendmsg+0xcd/0x170
[ 3481.813256][   T73]      do_syscall_64+0xc6/0x1e0
[ 3481.813256][   T73] 
[ 3481.815432][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3481.815432][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3481.815432][   T73]      ipv6_find_idev+0x102/0x170
[ 3481.815432][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3481.815432][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3481.815432][   T73]      netlink_rcv_skb+0x130/0x360
[ 3481.815432][   T73]      netlink_unicast+0x449/0x710
[ 3481.815432][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3481.815432][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3481.815432][   T73]      ___sys_sendmsg+0xee/0x170
[ 3481.815432][   T73]      __sys_sendmsg+0xcd/0x170
[ 3481.815432][   T73]      do_syscall_64+0xc6/0x1e0
[ 3481.815432][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3481.815432][   T73] 
[ 3481.817125][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3481.817125][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3481.817125][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3481.817125][   T73]      ipv6_find_idev+0x102/0x170
[ 3481.817125][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3481.817125][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3481.817125][   T73]      netlink_rcv_skb+0x130/0x360
[ 3481.817125][   T73]      netlink_unicast+0x449/0x710
[ 3481.817125][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3481.817125][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3481.817125][   T73]      ___sys_sendmsg+0xee/0x170
[ 3481.817125][   T73]      __sys_sendmsg+0xcd/0x170
[ 3481.817125][   T73]      do_syscall_64+0xc6/0x1e0
[ 3481.817125][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3481.817125][   T73] 
[ 3481.818995][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3481.819293][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3481.819293][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3481.819293][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3481.819293][   T73]      fib6_nh_init+0xa22/0x1580
[ 3481.819293][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3481.819293][   T73]      ip6_route_add+0x1c/0x140
[ 3481.819293][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3481.819293][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3481.819293][   T73]      netlink_rcv_skb+0x130/0x360
[ 3481.819293][   T73]      netlink_unicast+0x449/0x710
[ 3481.819293][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3481.819293][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3481.819293][   T73]      ___sys_sendmsg+0xee/0x170
[ 3481.819293][   T73]      __sys_sendmsg+0xcd/0x170
[ 3481.819293][   T73]      do_syscall_64+0xc6/0x1e0
[ 3481.819293][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3481.819293][   T73] 
[ 3481.821553][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3481.821553][   T73]      dst_init+0x84/0x4a0
[ 3481.821553][   T73]      dst_alloc+0x97/0x150
[ 3481.821553][   T73]      ip6_dst_alloc+0x23/0x90
[ 3481.821553][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3481.821553][   T73]      ip6_pol_route+0x56f/0x840
[ 3481.821553][   T73]      fib6_rule_lookup+0x456/0x630
[ 3481.821553][   T73]      ip6_route_input+0x59c/0xa50
[ 3481.821553][   T73]      ipv6_rcv+0x397/0x810
[ 3481.821553][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3481.821553][   T73]      process_backlog+0x101/0x620
[ 3481.821553][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3481.821553][   T73]      net_rx_action+0x495/0xbe0
[ 3481.821553][   T73]      __do_softirq+0x1b5/0x7f6
[ 3481.821553][   T73] 
[ 3481.823520][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3481.823520][   T73]      netdev_get_by_index+0x5e/0x80
[ 3481.823520][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3481.823520][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3481.823520][   T73]      ip6_route_add+0x1c/0x140
[ 3481.823520][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3481.823520][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3481.823520][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3481.823520][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3481.823520][   T73]      netlink_rcv_skb+0x130/0x360
[ 3481.823520][   T73]      netlink_unicast+0x449/0x710
[ 3481.823520][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3481.823520][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3481.823520][   T73]      ___sys_sendmsg+0xee/0x170
[ 3481.823520][   T73]      __sys_sendmsg+0xcd/0x170
[ 3481.823520][   T73]      do_syscall_64+0xc6/0x1e0
[ 3481.823520][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3481.823520][   T73] 
[ 3481.825963][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3481.825963][   T73]      netdev_get_by_index+0x5e/0x80
[ 3481.825963][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3481.825963][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3481.825963][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3481.825963][   T73]      ipv6_add_addr+0x411/0x2000
[ 3481.825963][   T73]      inet6_addr_add+0x30e/0xa40
[ 3481.825963][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3481.825963][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3481.825963][   T73]      netlink_rcv_skb+0x130/0x360
[ 3481.825963][   T73]      netlink_unicast+0x449/0x710
[ 3481.825963][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3481.825963][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3481.825963][   T73]      ___sys_sendmsg+0xee/0x170
[ 3481.825963][   T73]      __sys_sendmsg+0xcd/0x170
[ 3481.825963][   T73]      do_syscall_64+0xc6/0x1e0
[ 3481.825963][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3481.825963][   T73] 
[ 3481.828409][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3481.828409][   T73]      netdev_get_by_index+0x5e/0x80
[ 3481.828409][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3481.828409][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3481.828409][   T73]      ip6_route_add+0x1c/0x140
[ 3481.828409][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3481.828409][   T73]      addrconf_add_dev+0xe2/0x170
[ 3481.828409][   T73]      inet6_addr_add+0x12f/0xa40
[ 3481.828409][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3481.828409][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3481.828409][   T73]      netlink_rcv_skb+0x130/0x360
[ 3481.828409][   T73]      netlink_unicast+0x449/0x710
[ 3481.828409][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3481.828409][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3481.828409][   T73]      ___sys_sendmsg+0xee/0x170
[ 3481.828409][   T73]      __sys_sendmsg+0xcd/0x170
[ 3481.828409][   T73]      do_syscall_64+0xc6/0x1e0
[ 3481.828409][   T73] 
[ 3481.830884][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3481.830884][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3481.830884][   T73]      ipv6_find_idev+0x102/0x170
[ 3481.830884][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3481.830884][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3481.830884][   T73]      netlink_rcv_skb+0x130/0x360
[ 3481.830884][   T73]      netlink_unicast+0x449/0x710
[ 3481.830884][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3481.830884][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3481.830884][   T73]      ___sys_sendmsg+0xee/0x170
[ 3481.830884][   T73]      __sys_sendmsg+0xcd/0x170
[ 3481.830884][   T73]      do_syscall_64+0xc6/0x1e0
[ 3481.830884][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3481.830884][   T73] 
[ 3481.832675][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3481.832675][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3481.832675][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3481.832675][   T73]      ipv6_find_idev+0x102/0x170
[ 3481.832675][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3481.832675][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3481.832675][   T73]      netlink_rcv_skb+0x130/0x360
[ 3481.832675][   T73]      netlink_unicast+0x449/0x710
[ 3481.832675][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3481.832675][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3481.832675][   T73]      ___sys_sendmsg+0xee/0x170
[ 3481.832675][   T73]      __sys_sendmsg+0xcd/0x170
[ 3481.832675][   T73]      do_syscall_64+0xc6/0x1e0
[ 3481.832675][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3481.832675][   T73] 
[ 3481.834743][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3481.835051][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3481.835051][   T73]      netdev_get_by_index+0x5e/0x80
[ 3481.835051][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3481.835051][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3481.835051][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3481.835051][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3481.835051][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3481.835051][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3481.835051][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3481.835051][   T73]      addrconf_dad_begin+0x310/0x670
[ 3481.835051][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3481.835051][   T73]      process_one_work+0x84d/0x18a0
[ 3481.835051][   T73]      worker_thread+0x587/0xd30
[ 3481.835051][   T73]      kthread+0x28a/0x350
[ 3481.835051][   T73]      ret_from_fork+0x31/0x70
[ 3481.835051][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3481.835051][   T73] 
[ 3481.837345][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3481.837345][   T73]      netdev_get_by_index+0x5e/0x80
[ 3481.837345][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3481.837345][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3481.837345][   T73]      ip6_route_add+0x1c/0x140
[ 3481.837345][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3481.837345][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3481.837345][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3481.837345][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3481.837345][   T73]      netlink_rcv_skb+0x130/0x360
[ 3481.837345][   T73]      netlink_unicast+0x449/0x710
[ 3481.837345][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3481.837345][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3481.837345][   T73]      ___sys_sendmsg+0xee/0x170
[ 3481.837345][   T73]      __sys_sendmsg+0xcd/0x170
[ 3481.837345][   T73]      do_syscall_64+0xc6/0x1e0
[ 3481.837345][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3481.837345][   T73] 
[ 3481.839761][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3481.839761][   T73]      netdev_get_by_index+0x5e/0x80
[ 3481.839761][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3481.839761][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3481.839761][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3481.839761][   T73]      ipv6_add_addr+0x411/0x2000
[ 3481.839761][   T73]      inet6_addr_add+0x30e/0xa40
[ 3481.839761][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3481.839761][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3481.839761][   T73]      netlink_rcv_skb+0x130/0x360
[ 3481.839761][   T73]      netlink_unicast+0x449/0x710
[ 3481.839761][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3481.839761][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3481.839761][   T73]      ___sys_sendmsg+0xee/0x170
[ 3481.839761][   T73]      __sys_sendmsg+0xcd/0x170
[ 3481.839761][   T73]      do_syscall_64+0xc6/0x1e0
[ 3481.839761][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3481.839761][   T73] 
[ 3481.841952][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3481.841952][   T73]      netdev_get_by_index+0x5e/0x80
[ 3481.841952][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3481.841952][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3481.841952][   T73]      ip6_route_add+0x1c/0x140
[ 3481.841952][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3481.841952][   T73]      addrconf_add_dev+0xe2/0x170
[ 3481.841952][   T73]      inet6_addr_add+0x12f/0xa40
[ 3481.841952][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3481.841952][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3481.841952][   T73]      netlink_rcv_skb+0x130/0x360
[ 3481.841952][   T73]      netlink_unicast+0x449/0x710
[ 3481.841952][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3481.841952][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3481.841952][   T73]      ___sys_sendmsg+0xee/0x170
[ 3481.841952][   T73]      __sys_sendmsg+0xcd/0x170
[ 3481.841952][   T73]      do_syscall_64+0xc6/0x1e0
[ 3481.841952][   T73] 
[ 3481.844201][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3481.844201][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3481.844201][   T73]      ipv6_find_idev+0x102/0x170
[ 3481.844201][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3481.844201][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3481.844201][   T73]      netlink_rcv_skb+0x130/0x360
[ 3481.844201][   T73]      netlink_unicast+0x449/0x710
[ 3481.844201][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3481.844201][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3481.844201][   T73]      ___sys_sendmsg+0xee/0x170
[ 3481.844201][   T73]      __sys_sendmsg+0xcd/0x170
[ 3481.844201][   T73]      do_syscall_64+0xc6/0x1e0
[ 3481.844201][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3481.844201][   T73] 
[ 3481.845934][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3481.845934][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3481.845934][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3481.845934][   T73]      ipv6_find_idev+0x102/0x170
[ 3481.845934][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3481.845934][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3481.845934][   T73]      netlink_rcv_skb+0x130/0x360
[ 3481.845934][   T73]      netlink_unicast+0x449/0x710
[ 3481.845934][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3481.845934][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3481.845934][   T73]      ___sys_sendmsg+0xee/0x170
[ 3481.845934][   T73]      __sys_sendmsg+0xcd/0x170
[ 3481.845934][   T73]      do_syscall_64+0xc6/0x1e0
[ 3481.845934][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3481.845934][   T73] 
[ 3491.983780][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3491.984278][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3491.984278][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3491.984278][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3491.984278][   T73]      fib6_nh_init+0xa22/0x1580
[ 3491.984278][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3491.984278][   T73]      ip6_route_add+0x1c/0x140
[ 3491.984278][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3491.984278][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3491.984278][   T73]      netlink_rcv_skb+0x130/0x360
[ 3491.984278][   T73]      netlink_unicast+0x449/0x710
[ 3491.984278][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3491.984278][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3491.984278][   T73]      ___sys_sendmsg+0xee/0x170
[ 3491.984278][   T73]      __sys_sendmsg+0xcd/0x170
[ 3491.984278][   T73]      do_syscall_64+0xc6/0x1e0
[ 3491.984278][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3491.984278][   T73] 
[ 3491.986220][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3491.986220][   T73]      dst_init+0x84/0x4a0
[ 3491.986220][   T73]      dst_alloc+0x97/0x150
[ 3491.986220][   T73]      ip6_dst_alloc+0x23/0x90
[ 3491.986220][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3491.986220][   T73]      ip6_pol_route+0x56f/0x840
[ 3491.986220][   T73]      fib6_rule_lookup+0x456/0x630
[ 3491.986220][   T73]      ip6_route_input+0x59c/0xa50
[ 3491.986220][   T73]      ipv6_rcv+0x397/0x810
[ 3491.986220][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3491.986220][   T73]      process_backlog+0x101/0x620
[ 3491.986220][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3491.986220][   T73]      net_rx_action+0x495/0xbe0
[ 3491.986220][   T73]      __do_softirq+0x1b5/0x7f6
[ 3491.986220][   T73] 
[ 3491.987869][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3491.987869][   T73]      netdev_get_by_index+0x5e/0x80
[ 3491.987869][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3491.987869][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3491.987869][   T73]      ip6_route_add+0x1c/0x140
[ 3491.987869][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3491.987869][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3491.987869][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3491.987869][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3491.987869][   T73]      netlink_rcv_skb+0x130/0x360
[ 3491.987869][   T73]      netlink_unicast+0x449/0x710
[ 3491.987869][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3491.987869][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3491.987869][   T73]      ___sys_sendmsg+0xee/0x170
[ 3491.987869][   T73]      __sys_sendmsg+0xcd/0x170
[ 3491.987869][   T73]      do_syscall_64+0xc6/0x1e0
[ 3491.987869][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3491.987869][   T73] 
[ 3491.989883][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3491.989883][   T73]      netdev_get_by_index+0x5e/0x80
[ 3491.989883][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3491.989883][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3491.989883][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3491.989883][   T73]      ipv6_add_addr+0x411/0x2000
[ 3491.989883][   T73]      inet6_addr_add+0x30e/0xa40
[ 3491.989883][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3491.989883][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3491.989883][   T73]      netlink_rcv_skb+0x130/0x360
[ 3491.989883][   T73]      netlink_unicast+0x449/0x710
[ 3491.989883][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3491.989883][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3491.989883][   T73]      ___sys_sendmsg+0xee/0x170
[ 3491.989883][   T73]      __sys_sendmsg+0xcd/0x170
[ 3491.989883][   T73]      do_syscall_64+0xc6/0x1e0
[ 3491.989883][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3491.989883][   T73] 
[ 3491.991900][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3491.991900][   T73]      netdev_get_by_index+0x5e/0x80
[ 3491.991900][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3491.991900][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3491.991900][   T73]      ip6_route_add+0x1c/0x140
[ 3491.991900][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3491.991900][   T73]      addrconf_add_dev+0xe2/0x170
[ 3491.991900][   T73]      inet6_addr_add+0x12f/0xa40
[ 3491.991900][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3491.991900][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3491.991900][   T73]      netlink_rcv_skb+0x130/0x360
[ 3491.991900][   T73]      netlink_unicast+0x449/0x710
[ 3491.991900][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3491.991900][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3491.991900][   T73]      ___sys_sendmsg+0xee/0x170
[ 3491.991900][   T73]      __sys_sendmsg+0xcd/0x170
[ 3491.991900][   T73]      do_syscall_64+0xc6/0x1e0
[ 3491.991900][   T73] 
[ 3491.993878][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3491.993878][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3491.993878][   T73]      ipv6_find_idev+0x102/0x170
[ 3491.993878][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3491.993878][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3491.993878][   T73]      netlink_rcv_skb+0x130/0x360
[ 3491.993878][   T73]      netlink_unicast+0x449/0x710
[ 3491.993878][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3491.993878][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3491.993878][   T73]      ___sys_sendmsg+0xee/0x170
[ 3491.993878][   T73]      __sys_sendmsg+0xcd/0x170
[ 3491.993878][   T73]      do_syscall_64+0xc6/0x1e0
[ 3491.993878][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3491.993878][   T73] 
[ 3491.995424][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3491.995424][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3491.995424][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3491.995424][   T73]      ipv6_find_idev+0x102/0x170
[ 3491.995424][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3491.995424][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3491.995424][   T73]      netlink_rcv_skb+0x130/0x360
[ 3491.995424][   T73]      netlink_unicast+0x449/0x710
[ 3491.995424][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3491.995424][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3491.995424][   T73]      ___sys_sendmsg+0xee/0x170
[ 3491.995424][   T73]      __sys_sendmsg+0xcd/0x170
[ 3491.995424][   T73]      do_syscall_64+0xc6/0x1e0
[ 3491.995424][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3491.995424][   T73] 
[ 3491.997213][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3491.997492][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3491.997492][   T73]      netdev_get_by_index+0x5e/0x80
[ 3491.997492][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3491.997492][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3491.997492][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3491.997492][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3491.997492][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3491.997492][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3491.997492][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3491.997492][   T73]      addrconf_dad_begin+0x310/0x670
[ 3491.997492][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3491.997492][   T73]      process_one_work+0x84d/0x18a0
[ 3491.997492][   T73]      worker_thread+0x587/0xd30
[ 3491.997492][   T73]      kthread+0x28a/0x350
[ 3491.997492][   T73]      ret_from_fork+0x31/0x70
[ 3491.997492][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3491.997492][   T73] 
[ 3491.999446][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3491.999446][   T73]      netdev_get_by_index+0x5e/0x80
[ 3491.999446][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3491.999446][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3491.999446][   T73]      ip6_route_add+0x1c/0x140
[ 3491.999446][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3491.999446][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3491.999446][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3491.999446][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3491.999446][   T73]      netlink_rcv_skb+0x130/0x360
[ 3491.999446][   T73]      netlink_unicast+0x449/0x710
[ 3491.999446][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3491.999446][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3491.999446][   T73]      ___sys_sendmsg+0xee/0x170
[ 3491.999446][   T73]      __sys_sendmsg+0xcd/0x170
[ 3491.999446][   T73]      do_syscall_64+0xc6/0x1e0
[ 3491.999446][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3491.999446][   T73] 
[ 3492.001447][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3492.001447][   T73]      netdev_get_by_index+0x5e/0x80
[ 3492.001447][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3492.001447][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3492.001447][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3492.001447][   T73]      ipv6_add_addr+0x411/0x2000
[ 3492.001447][   T73]      inet6_addr_add+0x30e/0xa40
[ 3492.001447][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3492.001447][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3492.001447][   T73]      netlink_rcv_skb+0x130/0x360
[ 3492.001447][   T73]      netlink_unicast+0x449/0x710
[ 3492.001447][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3492.001447][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3492.001447][   T73]      ___sys_sendmsg+0xee/0x170
[ 3492.001447][   T73]      __sys_sendmsg+0xcd/0x170
[ 3492.001447][   T73]      do_syscall_64+0xc6/0x1e0
[ 3492.001447][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3492.001447][   T73] 
[ 3492.003461][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3492.003461][   T73]      netdev_get_by_index+0x5e/0x80
[ 3492.003461][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3492.003461][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3492.003461][   T73]      ip6_route_add+0x1c/0x140
[ 3492.003461][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3492.003461][   T73]      addrconf_add_dev+0xe2/0x170
[ 3492.003461][   T73]      inet6_addr_add+0x12f/0xa40
[ 3492.003461][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3492.003461][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3492.003461][   T73]      netlink_rcv_skb+0x130/0x360
[ 3492.003461][   T73]      netlink_unicast+0x449/0x710
[ 3492.003461][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3492.003461][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3492.003461][   T73]      ___sys_sendmsg+0xee/0x170
[ 3492.003461][   T73]      __sys_sendmsg+0xcd/0x170
[ 3492.003461][   T73]      do_syscall_64+0xc6/0x1e0
[ 3492.003461][   T73] 
[ 3492.005449][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3492.005449][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3492.005449][   T73]      ipv6_find_idev+0x102/0x170
[ 3492.005449][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3492.005449][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3492.005449][   T73]      netlink_rcv_skb+0x130/0x360
[ 3492.005449][   T73]      netlink_unicast+0x449/0x710
[ 3492.005449][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3492.005449][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3492.005449][   T73]      ___sys_sendmsg+0xee/0x170
[ 3492.005449][   T73]      __sys_sendmsg+0xcd/0x170
[ 3492.005449][   T73]      do_syscall_64+0xc6/0x1e0
[ 3492.005449][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3492.005449][   T73] 
[ 3492.006993][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3492.006993][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3492.006993][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3492.006993][   T73]      ipv6_find_idev+0x102/0x170
[ 3492.006993][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3492.006993][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3492.006993][   T73]      netlink_rcv_skb+0x130/0x360
[ 3492.006993][   T73]      netlink_unicast+0x449/0x710
[ 3492.006993][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3492.006993][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3492.006993][   T73]      ___sys_sendmsg+0xee/0x170
[ 3492.006993][   T73]      __sys_sendmsg+0xcd/0x170
[ 3492.006993][   T73]      do_syscall_64+0xc6/0x1e0
[ 3492.006993][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3492.006993][   T73] 
[ 3492.008706][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3492.008990][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3492.008990][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3492.008990][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3492.008990][   T73]      fib6_nh_init+0xa22/0x1580
[ 3492.008990][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3492.008990][   T73]      ip6_route_add+0x1c/0x140
[ 3492.008990][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3492.008990][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3492.008990][   T73]      netlink_rcv_skb+0x130/0x360
[ 3492.008990][   T73]      netlink_unicast+0x449/0x710
[ 3492.008990][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3492.008990][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3492.008990][   T73]      ___sys_sendmsg+0xee/0x170
[ 3492.008990][   T73]      __sys_sendmsg+0xcd/0x170
[ 3492.008990][   T73]      do_syscall_64+0xc6/0x1e0
[ 3492.008990][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3492.008990][   T73] 
[ 3492.011063][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3492.011063][   T73]      dst_init+0x84/0x4a0
[ 3492.011063][   T73]      dst_alloc+0x97/0x150
[ 3492.011063][   T73]      ip6_dst_alloc+0x23/0x90
[ 3492.011063][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3492.011063][   T73]      ip6_pol_route+0x56f/0x840
[ 3492.011063][   T73]      fib6_rule_lookup+0x456/0x630
[ 3492.011063][   T73]      ip6_route_input+0x59c/0xa50
[ 3492.011063][   T73]      ipv6_rcv+0x397/0x810
[ 3492.011063][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3492.011063][   T73]      process_backlog+0x101/0x620
[ 3492.011063][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3492.011063][   T73]      net_rx_action+0x495/0xbe0
[ 3492.011063][   T73]      __do_softirq+0x1b5/0x7f6
[ 3492.011063][   T73] 
[ 3492.012949][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3492.012949][   T73]      netdev_get_by_index+0x5e/0x80
[ 3492.012949][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3492.012949][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3492.012949][   T73]      ip6_route_add+0x1c/0x140
[ 3492.012949][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3492.012949][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3492.012949][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3492.012949][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3492.012949][   T73]      netlink_rcv_skb+0x130/0x360
[ 3492.012949][   T73]      netlink_unicast+0x449/0x710
[ 3492.012949][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3492.012949][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3492.012949][   T73]      ___sys_sendmsg+0xee/0x170
[ 3492.012949][   T73]      __sys_sendmsg+0xcd/0x170
[ 3492.012949][   T73]      do_syscall_64+0xc6/0x1e0
[ 3492.012949][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3492.012949][   T73] 
[ 3492.015203][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3492.015203][   T73]      netdev_get_by_index+0x5e/0x80
[ 3492.015203][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3492.015203][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3492.015203][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3492.015203][   T73]      ipv6_add_addr+0x411/0x2000
[ 3492.015203][   T73]      inet6_addr_add+0x30e/0xa40
[ 3492.015203][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3492.015203][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3492.015203][   T73]      netlink_rcv_skb+0x130/0x360
[ 3492.015203][   T73]      netlink_unicast+0x449/0x710
[ 3492.015203][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3492.015203][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3492.015203][   T73]      ___sys_sendmsg+0xee/0x170
[ 3492.015203][   T73]      __sys_sendmsg+0xcd/0x170
[ 3492.015203][   T73]      do_syscall_64+0xc6/0x1e0
[ 3492.015203][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3492.015203][   T73] 
[ 3492.017452][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3492.017452][   T73]      netdev_get_by_index+0x5e/0x80
[ 3492.017452][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3492.017452][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3492.017452][   T73]      ip6_route_add+0x1c/0x140
[ 3492.017452][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3492.017452][   T73]      addrconf_add_dev+0xe2/0x170
[ 3492.017452][   T73]      inet6_addr_add+0x12f/0xa40
[ 3492.017452][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3492.017452][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3492.017452][   T73]      netlink_rcv_skb+0x130/0x360
[ 3492.017452][   T73]      netlink_unicast+0x449/0x710
[ 3492.017452][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3492.017452][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3492.017452][   T73]      ___sys_sendmsg+0xee/0x170
[ 3492.017452][   T73]      __sys_sendmsg+0xcd/0x170
[ 3492.017452][   T73]      do_syscall_64+0xc6/0x1e0
[ 3492.017452][   T73] 
[ 3492.019673][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3492.019673][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3492.019673][   T73]      ipv6_find_idev+0x102/0x170
[ 3492.019673][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3492.019673][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3492.019673][   T73]      netlink_rcv_skb+0x130/0x360
[ 3492.019673][   T73]      netlink_unicast+0x449/0x710
[ 3492.019673][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3492.019673][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3492.019673][   T73]      ___sys_sendmsg+0xee/0x170
[ 3492.019673][   T73]      __sys_sendmsg+0xcd/0x170
[ 3492.019673][   T73]      do_syscall_64+0xc6/0x1e0
[ 3492.019673][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3492.019673][   T73] 
[ 3492.021400][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3492.021400][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3492.021400][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3492.021400][   T73]      ipv6_find_idev+0x102/0x170
[ 3492.021400][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3492.021400][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3492.021400][   T73]      netlink_rcv_skb+0x130/0x360
[ 3492.021400][   T73]      netlink_unicast+0x449/0x710
[ 3492.021400][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3492.021400][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3492.021400][   T73]      ___sys_sendmsg+0xee/0x170
[ 3492.021400][   T73]      __sys_sendmsg+0xcd/0x170
[ 3492.021400][   T73]      do_syscall_64+0xc6/0x1e0
[ 3492.021400][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3492.021400][   T73] 
[ 3492.023326][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3492.023612][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3492.023612][   T73]      netdev_get_by_index+0x5e/0x80
[ 3492.023612][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3492.023612][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3492.023612][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3492.023612][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3492.023612][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3492.023612][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3492.023612][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3492.023612][   T73]      addrconf_dad_begin+0x310/0x670
[ 3492.023612][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3492.023612][   T73]      process_one_work+0x84d/0x18a0
[ 3492.023612][   T73]      worker_thread+0x587/0xd30
[ 3492.023612][   T73]      kthread+0x28a/0x350
[ 3492.023612][   T73]      ret_from_fork+0x31/0x70
[ 3492.023612][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3492.023612][   T73] 
[ 3492.025769][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3492.025769][   T73]      netdev_get_by_index+0x5e/0x80
[ 3492.025769][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3492.025769][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3492.025769][   T73]      ip6_route_add+0x1c/0x140
[ 3492.025769][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3492.025769][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3492.025769][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3492.025769][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3492.025769][   T73]      netlink_rcv_skb+0x130/0x360
[ 3492.025769][   T73]      netlink_unicast+0x449/0x710
[ 3492.025769][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3492.025769][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3492.025769][   T73]      ___sys_sendmsg+0xee/0x170
[ 3492.025769][   T73]      __sys_sendmsg+0xcd/0x170
[ 3492.025769][   T73]      do_syscall_64+0xc6/0x1e0
[ 3492.025769][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3492.025769][   T73] 
[ 3492.028028][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3492.028028][   T73]      netdev_get_by_index+0x5e/0x80
[ 3492.028028][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3492.028028][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3492.028028][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3492.028028][   T73]      ipv6_add_addr+0x411/0x2000
[ 3492.028028][   T73]      inet6_addr_add+0x30e/0xa40
[ 3492.028028][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3492.028028][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3492.028028][   T73]      netlink_rcv_skb+0x130/0x360
[ 3492.028028][   T73]      netlink_unicast+0x449/0x710
[ 3492.028028][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3492.028028][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3492.028028][   T73]      ___sys_sendmsg+0xee/0x170
[ 3492.028028][   T73]      __sys_sendmsg+0xcd/0x170
[ 3492.028028][   T73]      do_syscall_64+0xc6/0x1e0
[ 3492.028028][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3492.028028][   T73] 
[ 3492.030236][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3492.030236][   T73]      netdev_get_by_index+0x5e/0x80
[ 3492.030236][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3492.030236][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3492.030236][   T73]      ip6_route_add+0x1c/0x140
[ 3492.030236][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3492.030236][   T73]      addrconf_add_dev+0xe2/0x170
[ 3492.030236][   T73]      inet6_addr_add+0x12f/0xa40
[ 3492.030236][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3492.030236][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3492.030236][   T73]      netlink_rcv_skb+0x130/0x360
[ 3492.030236][   T73]      netlink_unicast+0x449/0x710
[ 3492.030236][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3492.030236][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3492.030236][   T73]      ___sys_sendmsg+0xee/0x170
[ 3492.030236][   T73]      __sys_sendmsg+0xcd/0x170
[ 3492.030236][   T73]      do_syscall_64+0xc6/0x1e0
[ 3492.030236][   T73] 
[ 3492.032532][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3492.032532][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3492.032532][   T73]      ipv6_find_idev+0x102/0x170
[ 3492.032532][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3492.032532][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3492.032532][   T73]      netlink_rcv_skb+0x130/0x360
[ 3492.032532][   T73]      netlink_unicast+0x449/0x710
[ 3492.032532][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3492.032532][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3492.032532][   T73]      ___sys_sendmsg+0xee/0x170
[ 3492.032532][   T73]      __sys_sendmsg+0xcd/0x170
[ 3492.032532][   T73]      do_syscall_64+0xc6/0x1e0
[ 3492.032532][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3492.032532][   T73] 
[ 3492.034293][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3492.034293][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3492.034293][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3492.034293][   T73]      ipv6_find_idev+0x102/0x170
[ 3492.034293][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3492.034293][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3492.034293][   T73]      netlink_rcv_skb+0x130/0x360
[ 3492.034293][   T73]      netlink_unicast+0x449/0x710
[ 3492.034293][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3492.034293][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3492.034293][   T73]      ___sys_sendmsg+0xee/0x170
[ 3492.034293][   T73]      __sys_sendmsg+0xcd/0x170
[ 3492.034293][   T73]      do_syscall_64+0xc6/0x1e0
[ 3492.034293][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3492.034293][   T73] 
[ 3502.239832][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3502.240385][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3502.240385][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3502.240385][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3502.240385][   T73]      fib6_nh_init+0xa22/0x1580
[ 3502.240385][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3502.240385][   T73]      ip6_route_add+0x1c/0x140
[ 3502.240385][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3502.240385][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3502.240385][   T73]      netlink_rcv_skb+0x130/0x360
[ 3502.240385][   T73]      netlink_unicast+0x449/0x710
[ 3502.240385][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3502.240385][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3502.240385][   T73]      ___sys_sendmsg+0xee/0x170
[ 3502.240385][   T73]      __sys_sendmsg+0xcd/0x170
[ 3502.240385][   T73]      do_syscall_64+0xc6/0x1e0
[ 3502.240385][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3502.240385][   T73] 
[ 3502.242291][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3502.242291][   T73]      dst_init+0x84/0x4a0
[ 3502.242291][   T73]      dst_alloc+0x97/0x150
[ 3502.242291][   T73]      ip6_dst_alloc+0x23/0x90
[ 3502.242291][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3502.242291][   T73]      ip6_pol_route+0x56f/0x840
[ 3502.242291][   T73]      fib6_rule_lookup+0x456/0x630
[ 3502.242291][   T73]      ip6_route_input+0x59c/0xa50
[ 3502.242291][   T73]      ipv6_rcv+0x397/0x810
[ 3502.242291][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3502.242291][   T73]      process_backlog+0x101/0x620
[ 3502.242291][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3502.242291][   T73]      net_rx_action+0x495/0xbe0
[ 3502.242291][   T73]      __do_softirq+0x1b5/0x7f6
[ 3502.242291][   T73] 
[ 3502.243935][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3502.243935][   T73]      netdev_get_by_index+0x5e/0x80
[ 3502.243935][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3502.243935][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3502.243935][   T73]      ip6_route_add+0x1c/0x140
[ 3502.243935][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3502.243935][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3502.243935][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3502.243935][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3502.243935][   T73]      netlink_rcv_skb+0x130/0x360
[ 3502.243935][   T73]      netlink_unicast+0x449/0x710
[ 3502.243935][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3502.243935][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3502.243935][   T73]      ___sys_sendmsg+0xee/0x170
[ 3502.243935][   T73]      __sys_sendmsg+0xcd/0x170
[ 3502.243935][   T73]      do_syscall_64+0xc6/0x1e0
[ 3502.243935][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3502.243935][   T73] 
[ 3502.246178][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3502.246178][   T73]      netdev_get_by_index+0x5e/0x80
[ 3502.246178][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3502.246178][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3502.246178][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3502.246178][   T73]      ipv6_add_addr+0x411/0x2000
[ 3502.246178][   T73]      inet6_addr_add+0x30e/0xa40
[ 3502.246178][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3502.246178][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3502.246178][   T73]      netlink_rcv_skb+0x130/0x360
[ 3502.246178][   T73]      netlink_unicast+0x449/0x710
[ 3502.246178][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3502.246178][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3502.246178][   T73]      ___sys_sendmsg+0xee/0x170
[ 3502.246178][   T73]      __sys_sendmsg+0xcd/0x170
[ 3502.246178][   T73]      do_syscall_64+0xc6/0x1e0
[ 3502.246178][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3502.246178][   T73] 
[ 3502.248429][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3502.248429][   T73]      netdev_get_by_index+0x5e/0x80
[ 3502.248429][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3502.248429][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3502.248429][   T73]      ip6_route_add+0x1c/0x140
[ 3502.248429][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3502.248429][   T73]      addrconf_add_dev+0xe2/0x170
[ 3502.248429][   T73]      inet6_addr_add+0x12f/0xa40
[ 3502.248429][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3502.248429][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3502.248429][   T73]      netlink_rcv_skb+0x130/0x360
[ 3502.248429][   T73]      netlink_unicast+0x449/0x710
[ 3502.248429][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3502.248429][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3502.248429][   T73]      ___sys_sendmsg+0xee/0x170
[ 3502.248429][   T73]      __sys_sendmsg+0xcd/0x170
[ 3502.248429][   T73]      do_syscall_64+0xc6/0x1e0
[ 3502.248429][   T73] 
[ 3502.250603][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3502.250603][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3502.250603][   T73]      ipv6_find_idev+0x102/0x170
[ 3502.250603][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3502.250603][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3502.250603][   T73]      netlink_rcv_skb+0x130/0x360
[ 3502.250603][   T73]      netlink_unicast+0x449/0x710
[ 3502.250603][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3502.250603][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3502.250603][   T73]      ___sys_sendmsg+0xee/0x170
[ 3502.250603][   T73]      __sys_sendmsg+0xcd/0x170
[ 3502.250603][   T73]      do_syscall_64+0xc6/0x1e0
[ 3502.250603][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3502.250603][   T73] 
[ 3502.252875][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3502.252875][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3502.252875][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3502.252875][   T73]      ipv6_find_idev+0x102/0x170
[ 3502.252875][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3502.252875][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3502.252875][   T73]      netlink_rcv_skb+0x130/0x360
[ 3502.252875][   T73]      netlink_unicast+0x449/0x710
[ 3502.252875][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3502.252875][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3502.252875][   T73]      ___sys_sendmsg+0xee/0x170
[ 3502.252875][   T73]      __sys_sendmsg+0xcd/0x170
[ 3502.252875][   T73]      do_syscall_64+0xc6/0x1e0
[ 3502.252875][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3502.252875][   T73] 
[ 3502.254739][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3502.255042][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3502.255042][   T73]      netdev_get_by_index+0x5e/0x80
[ 3502.255042][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3502.255042][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3502.255042][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3502.255042][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3502.255042][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3502.255042][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3502.255042][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3502.255042][   T73]      addrconf_dad_begin+0x310/0x670
[ 3502.255042][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3502.255042][   T73]      process_one_work+0x84d/0x18a0
[ 3502.255042][   T73]      worker_thread+0x587/0xd30
[ 3502.255042][   T73]      kthread+0x28a/0x350
[ 3502.255042][   T73]      ret_from_fork+0x31/0x70
[ 3502.255042][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3502.255042][   T73] 
[ 3502.257163][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3502.257163][   T73]      netdev_get_by_index+0x5e/0x80
[ 3502.257163][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3502.257163][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3502.257163][   T73]      ip6_route_add+0x1c/0x140
[ 3502.257163][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3502.257163][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3502.257163][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3502.257163][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3502.257163][   T73]      netlink_rcv_skb+0x130/0x360
[ 3502.257163][   T73]      netlink_unicast+0x449/0x710
[ 3502.257163][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3502.257163][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3502.257163][   T73]      ___sys_sendmsg+0xee/0x170
[ 3502.257163][   T73]      __sys_sendmsg+0xcd/0x170
[ 3502.257163][   T73]      do_syscall_64+0xc6/0x1e0
[ 3502.257163][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3502.257163][   T73] 
[ 3502.259391][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3502.259391][   T73]      netdev_get_by_index+0x5e/0x80
[ 3502.259391][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3502.259391][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3502.259391][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3502.259391][   T73]      ipv6_add_addr+0x411/0x2000
[ 3502.259391][   T73]      inet6_addr_add+0x30e/0xa40
[ 3502.259391][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3502.259391][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3502.259391][   T73]      netlink_rcv_skb+0x130/0x360
[ 3502.259391][   T73]      netlink_unicast+0x449/0x710
[ 3502.259391][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3502.259391][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3502.259391][   T73]      ___sys_sendmsg+0xee/0x170
[ 3502.259391][   T73]      __sys_sendmsg+0xcd/0x170
[ 3502.259391][   T73]      do_syscall_64+0xc6/0x1e0
[ 3502.259391][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3502.259391][   T73] 
[ 3502.261611][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3502.261611][   T73]      netdev_get_by_index+0x5e/0x80
[ 3502.261611][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3502.261611][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3502.261611][   T73]      ip6_route_add+0x1c/0x140
[ 3502.261611][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3502.261611][   T73]      addrconf_add_dev+0xe2/0x170
[ 3502.261611][   T73]      inet6_addr_add+0x12f/0xa40
[ 3502.261611][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3502.261611][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3502.261611][   T73]      netlink_rcv_skb+0x130/0x360
[ 3502.261611][   T73]      netlink_unicast+0x449/0x710
[ 3502.261611][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3502.261611][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3502.261611][   T73]      ___sys_sendmsg+0xee/0x170
[ 3502.261611][   T73]      __sys_sendmsg+0xcd/0x170
[ 3502.261611][   T73]      do_syscall_64+0xc6/0x1e0
[ 3502.261611][   T73] 
[ 3502.263805][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3502.263805][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3502.263805][   T73]      ipv6_find_idev+0x102/0x170
[ 3502.263805][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3502.263805][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3502.263805][   T73]      netlink_rcv_skb+0x130/0x360
[ 3502.263805][   T73]      netlink_unicast+0x449/0x710
[ 3502.263805][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3502.263805][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3502.263805][   T73]      ___sys_sendmsg+0xee/0x170
[ 3502.263805][   T73]      __sys_sendmsg+0xcd/0x170
[ 3502.263805][   T73]      do_syscall_64+0xc6/0x1e0
[ 3502.263805][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3502.263805][   T73] 
[ 3502.265501][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3502.265501][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3502.265501][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3502.265501][   T73]      ipv6_find_idev+0x102/0x170
[ 3502.265501][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3502.265501][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3502.265501][   T73]      netlink_rcv_skb+0x130/0x360
[ 3502.265501][   T73]      netlink_unicast+0x449/0x710
[ 3502.265501][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3502.265501][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3502.265501][   T73]      ___sys_sendmsg+0xee/0x170
[ 3502.265501][   T73]      __sys_sendmsg+0xcd/0x170
[ 3502.265501][   T73]      do_syscall_64+0xc6/0x1e0
[ 3502.265501][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3502.265501][   T73] 
[ 3502.267264][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3502.267532][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3502.267532][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3502.267532][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3502.267532][   T73]      fib6_nh_init+0xa22/0x1580
[ 3502.267532][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3502.267532][   T73]      ip6_route_add+0x1c/0x140
[ 3502.267532][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3502.267532][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3502.267532][   T73]      netlink_rcv_skb+0x130/0x360
[ 3502.267532][   T73]      netlink_unicast+0x449/0x710
[ 3502.267532][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3502.267532][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3502.267532][   T73]      ___sys_sendmsg+0xee/0x170
[ 3502.267532][   T73]      __sys_sendmsg+0xcd/0x170
[ 3502.267532][   T73]      do_syscall_64+0xc6/0x1e0
[ 3502.267532][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3502.267532][   T73] 
[ 3502.269669][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3502.269669][   T73]      dst_init+0x84/0x4a0
[ 3502.269669][   T73]      dst_alloc+0x97/0x150
[ 3502.269669][   T73]      ip6_dst_alloc+0x23/0x90
[ 3502.269669][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3502.269669][   T73]      ip6_pol_route+0x56f/0x840
[ 3502.269669][   T73]      fib6_rule_lookup+0x456/0x630
[ 3502.269669][   T73]      ip6_route_input+0x59c/0xa50
[ 3502.269669][   T73]      ipv6_rcv+0x397/0x810
[ 3502.269669][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3502.269669][   T73]      process_backlog+0x101/0x620
[ 3502.269669][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3502.269669][   T73]      net_rx_action+0x495/0xbe0
[ 3502.269669][   T73]      __do_softirq+0x1b5/0x7f6
[ 3502.269669][   T73] 
[ 3502.271587][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3502.271587][   T73]      netdev_get_by_index+0x5e/0x80
[ 3502.271587][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3502.271587][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3502.271587][   T73]      ip6_route_add+0x1c/0x140
[ 3502.271587][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3502.271587][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3502.271587][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3502.271587][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3502.271587][   T73]      netlink_rcv_skb+0x130/0x360
[ 3502.271587][   T73]      netlink_unicast+0x449/0x710
[ 3502.271587][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3502.271587][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3502.271587][   T73]      ___sys_sendmsg+0xee/0x170
[ 3502.271587][   T73]      __sys_sendmsg+0xcd/0x170
[ 3502.271587][   T73]      do_syscall_64+0xc6/0x1e0
[ 3502.271587][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3502.271587][   T73] 
[ 3502.273910][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3502.273910][   T73]      netdev_get_by_index+0x5e/0x80
[ 3502.273910][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3502.273910][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3502.273910][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3502.273910][   T73]      ipv6_add_addr+0x411/0x2000
[ 3502.273910][   T73]      inet6_addr_add+0x30e/0xa40
[ 3502.273910][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3502.273910][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3502.273910][   T73]      netlink_rcv_skb+0x130/0x360
[ 3502.273910][   T73]      netlink_unicast+0x449/0x710
[ 3502.273910][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3502.273910][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3502.273910][   T73]      ___sys_sendmsg+0xee/0x170
[ 3502.273910][   T73]      __sys_sendmsg+0xcd/0x170
[ 3502.273910][   T73]      do_syscall_64+0xc6/0x1e0
[ 3502.273910][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3502.273910][   T73] 
[ 3502.276536][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3502.276536][   T73]      netdev_get_by_index+0x5e/0x80
[ 3502.276536][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3502.276536][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3502.276536][   T73]      ip6_route_add+0x1c/0x140
[ 3502.276536][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3502.276536][   T73]      addrconf_add_dev+0xe2/0x170
[ 3502.276536][   T73]      inet6_addr_add+0x12f/0xa40
[ 3502.276536][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3502.276536][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3502.276536][   T73]      netlink_rcv_skb+0x130/0x360
[ 3502.276536][   T73]      netlink_unicast+0x449/0x710
[ 3502.276536][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3502.276536][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3502.276536][   T73]      ___sys_sendmsg+0xee/0x170
[ 3502.276536][   T73]      __sys_sendmsg+0xcd/0x170
[ 3502.276536][   T73]      do_syscall_64+0xc6/0x1e0
[ 3502.276536][   T73] 
[ 3502.278674][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3502.278674][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3502.278674][   T73]      ipv6_find_idev+0x102/0x170
[ 3502.278674][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3502.278674][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3502.278674][   T73]      netlink_rcv_skb+0x130/0x360
[ 3502.278674][   T73]      netlink_unicast+0x449/0x710
[ 3502.278674][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3502.278674][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3502.278674][   T73]      ___sys_sendmsg+0xee/0x170
[ 3502.278674][   T73]      __sys_sendmsg+0xcd/0x170
[ 3502.278674][   T73]      do_syscall_64+0xc6/0x1e0
[ 3502.278674][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3502.278674][   T73] 
[ 3502.280470][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3502.280470][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3502.280470][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3502.280470][   T73]      ipv6_find_idev+0x102/0x170
[ 3502.280470][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3502.280470][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3502.280470][   T73]      netlink_rcv_skb+0x130/0x360
[ 3502.280470][   T73]      netlink_unicast+0x449/0x710
[ 3502.280470][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3502.280470][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3502.280470][   T73]      ___sys_sendmsg+0xee/0x170
[ 3502.280470][   T73]      __sys_sendmsg+0xcd/0x170
[ 3502.280470][   T73]      do_syscall_64+0xc6/0x1e0
[ 3502.280470][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3502.280470][   T73] 
[ 3502.282414][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3502.282696][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3502.282696][   T73]      netdev_get_by_index+0x5e/0x80
[ 3502.282696][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3502.282696][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3502.282696][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3502.282696][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3502.282696][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3502.282696][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3502.282696][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3502.282696][   T73]      addrconf_dad_begin+0x310/0x670
[ 3502.282696][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3502.282696][   T73]      process_one_work+0x84d/0x18a0
[ 3502.282696][   T73]      worker_thread+0x587/0xd30
[ 3502.282696][   T73]      kthread+0x28a/0x350
[ 3502.282696][   T73]      ret_from_fork+0x31/0x70
[ 3502.282696][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3502.282696][   T73] 
[ 3502.284873][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3502.284873][   T73]      netdev_get_by_index+0x5e/0x80
[ 3502.284873][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3502.284873][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3502.284873][   T73]      ip6_route_add+0x1c/0x140
[ 3502.284873][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3502.284873][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3502.284873][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3502.284873][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3502.284873][   T73]      netlink_rcv_skb+0x130/0x360
[ 3502.284873][   T73]      netlink_unicast+0x449/0x710
[ 3502.284873][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3502.284873][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3502.284873][   T73]      ___sys_sendmsg+0xee/0x170
[ 3502.284873][   T73]      __sys_sendmsg+0xcd/0x170
[ 3502.284873][   T73]      do_syscall_64+0xc6/0x1e0
[ 3502.284873][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3502.284873][   T73] 
[ 3502.287066][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3502.287066][   T73]      netdev_get_by_index+0x5e/0x80
[ 3502.287066][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3502.287066][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3502.287066][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3502.287066][   T73]      ipv6_add_addr+0x411/0x2000
[ 3502.287066][   T73]      inet6_addr_add+0x30e/0xa40
[ 3502.287066][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3502.287066][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3502.287066][   T73]      netlink_rcv_skb+0x130/0x360
[ 3502.287066][   T73]      netlink_unicast+0x449/0x710
[ 3502.287066][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3502.287066][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3502.287066][   T73]      ___sys_sendmsg+0xee/0x170
[ 3502.287066][   T73]      __sys_sendmsg+0xcd/0x170
[ 3502.287066][   T73]      do_syscall_64+0xc6/0x1e0
[ 3502.287066][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3502.287066][   T73] 
[ 3502.289338][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3502.289338][   T73]      netdev_get_by_index+0x5e/0x80
[ 3502.289338][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3502.289338][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3502.289338][   T73]      ip6_route_add+0x1c/0x140
[ 3502.289338][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3502.289338][   T73]      addrconf_add_dev+0xe2/0x170
[ 3502.289338][   T73]      inet6_addr_add+0x12f/0xa40
[ 3502.289338][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3502.289338][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3502.289338][   T73]      netlink_rcv_skb+0x130/0x360
[ 3502.289338][   T73]      netlink_unicast+0x449/0x710
[ 3502.289338][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3502.289338][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3502.289338][   T73]      ___sys_sendmsg+0xee/0x170
[ 3502.289338][   T73]      __sys_sendmsg+0xcd/0x170
[ 3502.289338][   T73]      do_syscall_64+0xc6/0x1e0
[ 3502.289338][   T73] 
[ 3502.291619][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3502.291619][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3502.291619][   T73]      ipv6_find_idev+0x102/0x170
[ 3502.291619][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3502.291619][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3502.291619][   T73]      netlink_rcv_skb+0x130/0x360
[ 3502.291619][   T73]      netlink_unicast+0x449/0x710
[ 3502.291619][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3502.291619][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3502.291619][   T73]      ___sys_sendmsg+0xee/0x170
[ 3502.291619][   T73]      __sys_sendmsg+0xcd/0x170
[ 3502.291619][   T73]      do_syscall_64+0xc6/0x1e0
[ 3502.291619][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3502.291619][   T73] 
[ 3502.293352][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3502.293352][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3502.293352][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3502.293352][   T73]      ipv6_find_idev+0x102/0x170
[ 3502.293352][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3502.293352][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3502.293352][   T73]      netlink_rcv_skb+0x130/0x360
[ 3502.293352][   T73]      netlink_unicast+0x449/0x710
[ 3502.293352][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3502.293352][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3502.293352][   T73]      ___sys_sendmsg+0xee/0x170
[ 3502.293352][   T73]      __sys_sendmsg+0xcd/0x170
[ 3502.293352][   T73]      do_syscall_64+0xc6/0x1e0
[ 3502.293352][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3502.293352][   T73] 
[ 3512.535756][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3512.536260][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3512.536260][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3512.536260][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3512.536260][   T73]      fib6_nh_init+0xa22/0x1580
[ 3512.536260][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3512.536260][   T73]      ip6_route_add+0x1c/0x140
[ 3512.536260][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3512.536260][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3512.536260][   T73]      netlink_rcv_skb+0x130/0x360
[ 3512.536260][   T73]      netlink_unicast+0x449/0x710
[ 3512.536260][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3512.536260][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3512.536260][   T73]      ___sys_sendmsg+0xee/0x170
[ 3512.536260][   T73]      __sys_sendmsg+0xcd/0x170
[ 3512.536260][   T73]      do_syscall_64+0xc6/0x1e0
[ 3512.536260][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3512.536260][   T73] 
[ 3512.538181][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3512.538181][   T73]      dst_init+0x84/0x4a0
[ 3512.538181][   T73]      dst_alloc+0x97/0x150
[ 3512.538181][   T73]      ip6_dst_alloc+0x23/0x90
[ 3512.538181][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3512.538181][   T73]      ip6_pol_route+0x56f/0x840
[ 3512.538181][   T73]      fib6_rule_lookup+0x456/0x630
[ 3512.538181][   T73]      ip6_route_input+0x59c/0xa50
[ 3512.538181][   T73]      ipv6_rcv+0x397/0x810
[ 3512.538181][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3512.538181][   T73]      process_backlog+0x101/0x620
[ 3512.538181][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3512.538181][   T73]      net_rx_action+0x495/0xbe0
[ 3512.538181][   T73]      __do_softirq+0x1b5/0x7f6
[ 3512.538181][   T73] 
[ 3512.539848][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3512.539848][   T73]      netdev_get_by_index+0x5e/0x80
[ 3512.539848][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3512.539848][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3512.539848][   T73]      ip6_route_add+0x1c/0x140
[ 3512.539848][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3512.539848][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3512.539848][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3512.539848][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3512.539848][   T73]      netlink_rcv_skb+0x130/0x360
[ 3512.539848][   T73]      netlink_unicast+0x449/0x710
[ 3512.539848][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3512.539848][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3512.539848][   T73]      ___sys_sendmsg+0xee/0x170
[ 3512.539848][   T73]      __sys_sendmsg+0xcd/0x170
[ 3512.539848][   T73]      do_syscall_64+0xc6/0x1e0
[ 3512.539848][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3512.539848][   T73] 
[ 3512.541856][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3512.541856][   T73]      netdev_get_by_index+0x5e/0x80
[ 3512.541856][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3512.541856][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3512.541856][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3512.541856][   T73]      ipv6_add_addr+0x411/0x2000
[ 3512.541856][   T73]      inet6_addr_add+0x30e/0xa40
[ 3512.541856][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3512.541856][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3512.541856][   T73]      netlink_rcv_skb+0x130/0x360
[ 3512.541856][   T73]      netlink_unicast+0x449/0x710
[ 3512.541856][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3512.541856][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3512.541856][   T73]      ___sys_sendmsg+0xee/0x170
[ 3512.541856][   T73]      __sys_sendmsg+0xcd/0x170
[ 3512.541856][   T73]      do_syscall_64+0xc6/0x1e0
[ 3512.541856][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3512.541856][   T73] 
[ 3512.543855][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3512.543855][   T73]      netdev_get_by_index+0x5e/0x80
[ 3512.543855][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3512.543855][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3512.543855][   T73]      ip6_route_add+0x1c/0x140
[ 3512.543855][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3512.543855][   T73]      addrconf_add_dev+0xe2/0x170
[ 3512.543855][   T73]      inet6_addr_add+0x12f/0xa40
[ 3512.543855][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3512.543855][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3512.543855][   T73]      netlink_rcv_skb+0x130/0x360
[ 3512.543855][   T73]      netlink_unicast+0x449/0x710
[ 3512.543855][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3512.543855][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3512.543855][   T73]      ___sys_sendmsg+0xee/0x170
[ 3512.543855][   T73]      __sys_sendmsg+0xcd/0x170
[ 3512.543855][   T73]      do_syscall_64+0xc6/0x1e0
[ 3512.543855][   T73] 
[ 3512.545817][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3512.545817][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3512.545817][   T73]      ipv6_find_idev+0x102/0x170
[ 3512.545817][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3512.545817][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3512.545817][   T73]      netlink_rcv_skb+0x130/0x360
[ 3512.545817][   T73]      netlink_unicast+0x449/0x710
[ 3512.545817][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3512.545817][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3512.545817][   T73]      ___sys_sendmsg+0xee/0x170
[ 3512.545817][   T73]      __sys_sendmsg+0xcd/0x170
[ 3512.545817][   T73]      do_syscall_64+0xc6/0x1e0
[ 3512.545817][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3512.545817][   T73] 
[ 3512.547374][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3512.547374][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3512.547374][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3512.547374][   T73]      ipv6_find_idev+0x102/0x170
[ 3512.547374][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3512.547374][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3512.547374][   T73]      netlink_rcv_skb+0x130/0x360
[ 3512.547374][   T73]      netlink_unicast+0x449/0x710
[ 3512.547374][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3512.547374][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3512.547374][   T73]      ___sys_sendmsg+0xee/0x170
[ 3512.547374][   T73]      __sys_sendmsg+0xcd/0x170
[ 3512.547374][   T73]      do_syscall_64+0xc6/0x1e0
[ 3512.547374][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3512.547374][   T73] 
[ 3512.549099][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3512.549390][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3512.549390][   T73]      netdev_get_by_index+0x5e/0x80
[ 3512.549390][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3512.549390][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3512.549390][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3512.549390][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3512.549390][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3512.549390][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3512.549390][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3512.549390][   T73]      addrconf_dad_begin+0x310/0x670
[ 3512.549390][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3512.549390][   T73]      process_one_work+0x84d/0x18a0
[ 3512.549390][   T73]      worker_thread+0x587/0xd30
[ 3512.549390][   T73]      kthread+0x28a/0x350
[ 3512.549390][   T73]      ret_from_fork+0x31/0x70
[ 3512.549390][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3512.549390][   T73] 
[ 3512.551300][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3512.551300][   T73]      netdev_get_by_index+0x5e/0x80
[ 3512.551300][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3512.551300][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3512.551300][   T73]      ip6_route_add+0x1c/0x140
[ 3512.551300][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3512.551300][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3512.551300][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3512.551300][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3512.551300][   T73]      netlink_rcv_skb+0x130/0x360
[ 3512.551300][   T73]      netlink_unicast+0x449/0x710
[ 3512.551300][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3512.551300][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3512.551300][   T73]      ___sys_sendmsg+0xee/0x170
[ 3512.551300][   T73]      __sys_sendmsg+0xcd/0x170
[ 3512.551300][   T73]      do_syscall_64+0xc6/0x1e0
[ 3512.551300][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3512.551300][   T73] 
[ 3512.553309][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3512.553309][   T73]      netdev_get_by_index+0x5e/0x80
[ 3512.553309][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3512.553309][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3512.553309][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3512.553309][   T73]      ipv6_add_addr+0x411/0x2000
[ 3512.553309][   T73]      inet6_addr_add+0x30e/0xa40
[ 3512.553309][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3512.553309][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3512.553309][   T73]      netlink_rcv_skb+0x130/0x360
[ 3512.553309][   T73]      netlink_unicast+0x449/0x710
[ 3512.553309][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3512.553309][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3512.553309][   T73]      ___sys_sendmsg+0xee/0x170
[ 3512.553309][   T73]      __sys_sendmsg+0xcd/0x170
[ 3512.553309][   T73]      do_syscall_64+0xc6/0x1e0
[ 3512.553309][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3512.553309][   T73] 
[ 3512.555310][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3512.555310][   T73]      netdev_get_by_index+0x5e/0x80
[ 3512.555310][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3512.555310][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3512.555310][   T73]      ip6_route_add+0x1c/0x140
[ 3512.555310][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3512.555310][   T73]      addrconf_add_dev+0xe2/0x170
[ 3512.555310][   T73]      inet6_addr_add+0x12f/0xa40
[ 3512.555310][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3512.555310][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3512.555310][   T73]      netlink_rcv_skb+0x130/0x360
[ 3512.555310][   T73]      netlink_unicast+0x449/0x710
[ 3512.555310][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3512.555310][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3512.555310][   T73]      ___sys_sendmsg+0xee/0x170
[ 3512.555310][   T73]      __sys_sendmsg+0xcd/0x170
[ 3512.555310][   T73]      do_syscall_64+0xc6/0x1e0
[ 3512.555310][   T73] 
[ 3512.557272][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3512.557272][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3512.557272][   T73]      ipv6_find_idev+0x102/0x170
[ 3512.557272][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3512.557272][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3512.557272][   T73]      netlink_rcv_skb+0x130/0x360
[ 3512.557272][   T73]      netlink_unicast+0x449/0x710
[ 3512.557272][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3512.557272][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3512.557272][   T73]      ___sys_sendmsg+0xee/0x170
[ 3512.557272][   T73]      __sys_sendmsg+0xcd/0x170
[ 3512.557272][   T73]      do_syscall_64+0xc6/0x1e0
[ 3512.557272][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3512.557272][   T73] 
[ 3512.558821][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3512.558821][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3512.558821][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3512.558821][   T73]      ipv6_find_idev+0x102/0x170
[ 3512.558821][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3512.558821][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3512.558821][   T73]      netlink_rcv_skb+0x130/0x360
[ 3512.558821][   T73]      netlink_unicast+0x449/0x710
[ 3512.558821][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3512.558821][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3512.558821][   T73]      ___sys_sendmsg+0xee/0x170
[ 3512.558821][   T73]      __sys_sendmsg+0xcd/0x170
[ 3512.558821][   T73]      do_syscall_64+0xc6/0x1e0
[ 3512.558821][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3512.558821][   T73] 
[ 3512.560503][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3512.560779][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3512.560779][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3512.560779][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3512.560779][   T73]      fib6_nh_init+0xa22/0x1580
[ 3512.560779][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3512.560779][   T73]      ip6_route_add+0x1c/0x140
[ 3512.560779][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3512.560779][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3512.560779][   T73]      netlink_rcv_skb+0x130/0x360
[ 3512.560779][   T73]      netlink_unicast+0x449/0x710
[ 3512.560779][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3512.560779][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3512.560779][   T73]      ___sys_sendmsg+0xee/0x170
[ 3512.560779][   T73]      __sys_sendmsg+0xcd/0x170
[ 3512.560779][   T73]      do_syscall_64+0xc6/0x1e0
[ 3512.560779][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3512.560779][   T73] 
[ 3512.562851][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3512.562851][   T73]      dst_init+0x84/0x4a0
[ 3512.562851][   T73]      dst_alloc+0x97/0x150
[ 3512.562851][   T73]      ip6_dst_alloc+0x23/0x90
[ 3512.562851][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3512.562851][   T73]      ip6_pol_route+0x56f/0x840
[ 3512.562851][   T73]      fib6_rule_lookup+0x456/0x630
[ 3512.562851][   T73]      ip6_route_input+0x59c/0xa50
[ 3512.562851][   T73]      ipv6_rcv+0x397/0x810
[ 3512.562851][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3512.562851][   T73]      process_backlog+0x101/0x620
[ 3512.562851][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3512.562851][   T73]      net_rx_action+0x495/0xbe0
[ 3512.562851][   T73]      __do_softirq+0x1b5/0x7f6
[ 3512.562851][   T73] 
[ 3512.564668][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3512.564668][   T73]      netdev_get_by_index+0x5e/0x80
[ 3512.564668][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3512.564668][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3512.564668][   T73]      ip6_route_add+0x1c/0x140
[ 3512.564668][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3512.564668][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3512.564668][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3512.564668][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3512.564668][   T73]      netlink_rcv_skb+0x130/0x360
[ 3512.564668][   T73]      netlink_unicast+0x449/0x710
[ 3512.564668][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3512.564668][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3512.564668][   T73]      ___sys_sendmsg+0xee/0x170
[ 3512.564668][   T73]      __sys_sendmsg+0xcd/0x170
[ 3512.564668][   T73]      do_syscall_64+0xc6/0x1e0
[ 3512.564668][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3512.564668][   T73] 
[ 3512.566918][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3512.566918][   T73]      netdev_get_by_index+0x5e/0x80
[ 3512.566918][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3512.566918][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3512.566918][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3512.566918][   T73]      ipv6_add_addr+0x411/0x2000
[ 3512.566918][   T73]      inet6_addr_add+0x30e/0xa40
[ 3512.566918][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3512.566918][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3512.566918][   T73]      netlink_rcv_skb+0x130/0x360
[ 3512.566918][   T73]      netlink_unicast+0x449/0x710
[ 3512.566918][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3512.566918][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3512.566918][   T73]      ___sys_sendmsg+0xee/0x170
[ 3512.566918][   T73]      __sys_sendmsg+0xcd/0x170
[ 3512.566918][   T73]      do_syscall_64+0xc6/0x1e0
[ 3512.566918][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3512.566918][   T73] 
[ 3512.569245][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3512.569245][   T73]      netdev_get_by_index+0x5e/0x80
[ 3512.569245][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3512.569245][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3512.569245][   T73]      ip6_route_add+0x1c/0x140
[ 3512.569245][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3512.569245][   T73]      addrconf_add_dev+0xe2/0x170
[ 3512.569245][   T73]      inet6_addr_add+0x12f/0xa40
[ 3512.569245][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3512.569245][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3512.569245][   T73]      netlink_rcv_skb+0x130/0x360
[ 3512.569245][   T73]      netlink_unicast+0x449/0x710
[ 3512.569245][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3512.569245][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3512.569245][   T73]      ___sys_sendmsg+0xee/0x170
[ 3512.569245][   T73]      __sys_sendmsg+0xcd/0x170
[ 3512.569245][   T73]      do_syscall_64+0xc6/0x1e0
[ 3512.569245][   T73] 
[ 3512.571389][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3512.571389][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3512.571389][   T73]      ipv6_find_idev+0x102/0x170
[ 3512.571389][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3512.571389][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3512.571389][   T73]      netlink_rcv_skb+0x130/0x360
[ 3512.571389][   T73]      netlink_unicast+0x449/0x710
[ 3512.571389][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3512.571389][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3512.571389][   T73]      ___sys_sendmsg+0xee/0x170
[ 3512.571389][   T73]      __sys_sendmsg+0xcd/0x170
[ 3512.571389][   T73]      do_syscall_64+0xc6/0x1e0
[ 3512.571389][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3512.571389][   T73] 
[ 3512.573114][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3512.573114][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3512.573114][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3512.573114][   T73]      ipv6_find_idev+0x102/0x170
[ 3512.573114][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3512.573114][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3512.573114][   T73]      netlink_rcv_skb+0x130/0x360
[ 3512.573114][   T73]      netlink_unicast+0x449/0x710
[ 3512.573114][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3512.573114][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3512.573114][   T73]      ___sys_sendmsg+0xee/0x170
[ 3512.573114][   T73]      __sys_sendmsg+0xcd/0x170
[ 3512.573114][   T73]      do_syscall_64+0xc6/0x1e0
[ 3512.573114][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3512.573114][   T73] 
[ 3512.575037][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3512.575308][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3512.575308][   T73]      netdev_get_by_index+0x5e/0x80
[ 3512.575308][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3512.575308][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3512.575308][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3512.575308][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3512.575308][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3512.575308][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3512.575308][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3512.575308][   T73]      addrconf_dad_begin+0x310/0x670
[ 3512.575308][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3512.575308][   T73]      process_one_work+0x84d/0x18a0
[ 3512.575308][   T73]      worker_thread+0x587/0xd30
[ 3512.575308][   T73]      kthread+0x28a/0x350
[ 3512.575308][   T73]      ret_from_fork+0x31/0x70
[ 3512.575308][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3512.575308][   T73] 
[ 3512.577485][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3512.577485][   T73]      netdev_get_by_index+0x5e/0x80
[ 3512.577485][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3512.577485][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3512.577485][   T73]      ip6_route_add+0x1c/0x140
[ 3512.577485][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3512.577485][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3512.577485][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3512.577485][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3512.577485][   T73]      netlink_rcv_skb+0x130/0x360
[ 3512.577485][   T73]      netlink_unicast+0x449/0x710
[ 3512.577485][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3512.577485][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3512.577485][   T73]      ___sys_sendmsg+0xee/0x170
[ 3512.577485][   T73]      __sys_sendmsg+0xcd/0x170
[ 3512.577485][   T73]      do_syscall_64+0xc6/0x1e0
[ 3512.577485][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3512.577485][   T73] 
[ 3512.579864][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3512.579864][   T73]      netdev_get_by_index+0x5e/0x80
[ 3512.579864][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3512.579864][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3512.579864][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3512.579864][   T73]      ipv6_add_addr+0x411/0x2000
[ 3512.579864][   T73]      inet6_addr_add+0x30e/0xa40
[ 3512.579864][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3512.579864][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3512.579864][   T73]      netlink_rcv_skb+0x130/0x360
[ 3512.579864][   T73]      netlink_unicast+0x449/0x710
[ 3512.579864][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3512.579864][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3512.579864][   T73]      ___sys_sendmsg+0xee/0x170
[ 3512.579864][   T73]      __sys_sendmsg+0xcd/0x170
[ 3512.579864][   T73]      do_syscall_64+0xc6/0x1e0
[ 3512.579864][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3512.579864][   T73] 
[ 3512.582320][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3512.582320][   T73]      netdev_get_by_index+0x5e/0x80
[ 3512.582320][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3512.582320][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3512.582320][   T73]      ip6_route_add+0x1c/0x140
[ 3512.582320][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3512.582320][   T73]      addrconf_add_dev+0xe2/0x170
[ 3512.582320][   T73]      inet6_addr_add+0x12f/0xa40
[ 3512.582320][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3512.582320][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3512.582320][   T73]      netlink_rcv_skb+0x130/0x360
[ 3512.582320][   T73]      netlink_unicast+0x449/0x710
[ 3512.582320][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3512.582320][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3512.582320][   T73]      ___sys_sendmsg+0xee/0x170
[ 3512.582320][   T73]      __sys_sendmsg+0xcd/0x170
[ 3512.582320][   T73]      do_syscall_64+0xc6/0x1e0
[ 3512.582320][   T73] 
[ 3512.584716][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3512.584716][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3512.584716][   T73]      ipv6_find_idev+0x102/0x170
[ 3512.584716][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3512.584716][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3512.584716][   T73]      netlink_rcv_skb+0x130/0x360
[ 3512.584716][   T73]      netlink_unicast+0x449/0x710
[ 3512.584716][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3512.584716][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3512.584716][   T73]      ___sys_sendmsg+0xee/0x170
[ 3512.584716][   T73]      __sys_sendmsg+0xcd/0x170
[ 3512.584716][   T73]      do_syscall_64+0xc6/0x1e0
[ 3512.584716][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3512.584716][   T73] 
[ 3512.586599][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3512.586599][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3512.586599][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3512.586599][   T73]      ipv6_find_idev+0x102/0x170
[ 3512.586599][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3512.586599][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3512.586599][   T73]      netlink_rcv_skb+0x130/0x360
[ 3512.586599][   T73]      netlink_unicast+0x449/0x710
[ 3512.586599][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3512.586599][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3512.586599][   T73]      ___sys_sendmsg+0xee/0x170
[ 3512.586599][   T73]      __sys_sendmsg+0xcd/0x170
[ 3512.586599][   T73]      do_syscall_64+0xc6/0x1e0
[ 3512.586599][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3512.586599][   T73] 
[ 3522.727773][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3522.728262][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3522.728262][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3522.728262][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3522.728262][   T73]      fib6_nh_init+0xa22/0x1580
[ 3522.728262][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3522.728262][   T73]      ip6_route_add+0x1c/0x140
[ 3522.728262][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3522.728262][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3522.728262][   T73]      netlink_rcv_skb+0x130/0x360
[ 3522.728262][   T73]      netlink_unicast+0x449/0x710
[ 3522.728262][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3522.728262][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3522.728262][   T73]      ___sys_sendmsg+0xee/0x170
[ 3522.728262][   T73]      __sys_sendmsg+0xcd/0x170
[ 3522.728262][   T73]      do_syscall_64+0xc6/0x1e0
[ 3522.728262][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3522.728262][   T73] 
[ 3522.730393][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3522.730393][   T73]      dst_init+0x84/0x4a0
[ 3522.730393][   T73]      dst_alloc+0x97/0x150
[ 3522.730393][   T73]      ip6_dst_alloc+0x23/0x90
[ 3522.730393][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3522.730393][   T73]      ip6_pol_route+0x56f/0x840
[ 3522.730393][   T73]      fib6_rule_lookup+0x456/0x630
[ 3522.730393][   T73]      ip6_route_input+0x59c/0xa50
[ 3522.730393][   T73]      ipv6_rcv+0x397/0x810
[ 3522.730393][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3522.730393][   T73]      process_backlog+0x101/0x620
[ 3522.730393][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3522.730393][   T73]      net_rx_action+0x495/0xbe0
[ 3522.730393][   T73]      __do_softirq+0x1b5/0x7f6
[ 3522.730393][   T73] 
[ 3522.732189][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3522.732189][   T73]      netdev_get_by_index+0x5e/0x80
[ 3522.732189][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3522.732189][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3522.732189][   T73]      ip6_route_add+0x1c/0x140
[ 3522.732189][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3522.732189][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3522.732189][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3522.732189][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3522.732189][   T73]      netlink_rcv_skb+0x130/0x360
[ 3522.732189][   T73]      netlink_unicast+0x449/0x710
[ 3522.732189][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3522.732189][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3522.732189][   T73]      ___sys_sendmsg+0xee/0x170
[ 3522.732189][   T73]      __sys_sendmsg+0xcd/0x170
[ 3522.732189][   T73]      do_syscall_64+0xc6/0x1e0
[ 3522.732189][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3522.732189][   T73] 
[ 3522.734393][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3522.734393][   T73]      netdev_get_by_index+0x5e/0x80
[ 3522.734393][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3522.734393][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3522.734393][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3522.734393][   T73]      ipv6_add_addr+0x411/0x2000
[ 3522.734393][   T73]      inet6_addr_add+0x30e/0xa40
[ 3522.734393][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3522.734393][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3522.734393][   T73]      netlink_rcv_skb+0x130/0x360
[ 3522.734393][   T73]      netlink_unicast+0x449/0x710
[ 3522.734393][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3522.734393][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3522.734393][   T73]      ___sys_sendmsg+0xee/0x170
[ 3522.734393][   T73]      __sys_sendmsg+0xcd/0x170
[ 3522.734393][   T73]      do_syscall_64+0xc6/0x1e0
[ 3522.734393][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3522.734393][   T73] 
[ 3522.736514][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3522.736514][   T73]      netdev_get_by_index+0x5e/0x80
[ 3522.736514][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3522.736514][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3522.736514][   T73]      ip6_route_add+0x1c/0x140
[ 3522.736514][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3522.736514][   T73]      addrconf_add_dev+0xe2/0x170
[ 3522.736514][   T73]      inet6_addr_add+0x12f/0xa40
[ 3522.736514][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3522.736514][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3522.736514][   T73]      netlink_rcv_skb+0x130/0x360
[ 3522.736514][   T73]      netlink_unicast+0x449/0x710
[ 3522.736514][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3522.736514][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3522.736514][   T73]      ___sys_sendmsg+0xee/0x170
[ 3522.736514][   T73]      __sys_sendmsg+0xcd/0x170
[ 3522.736514][   T73]      do_syscall_64+0xc6/0x1e0
[ 3522.736514][   T73] 
[ 3522.738514][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3522.738514][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3522.738514][   T73]      ipv6_find_idev+0x102/0x170
[ 3522.738514][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3522.738514][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3522.738514][   T73]      netlink_rcv_skb+0x130/0x360
[ 3522.738514][   T73]      netlink_unicast+0x449/0x710
[ 3522.738514][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3522.738514][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3522.738514][   T73]      ___sys_sendmsg+0xee/0x170
[ 3522.738514][   T73]      __sys_sendmsg+0xcd/0x170
[ 3522.738514][   T73]      do_syscall_64+0xc6/0x1e0
[ 3522.738514][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3522.738514][   T73] 
[ 3522.740061][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3522.740061][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3522.740061][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3522.740061][   T73]      ipv6_find_idev+0x102/0x170
[ 3522.740061][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3522.740061][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3522.740061][   T73]      netlink_rcv_skb+0x130/0x360
[ 3522.740061][   T73]      netlink_unicast+0x449/0x710
[ 3522.740061][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3522.740061][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3522.740061][   T73]      ___sys_sendmsg+0xee/0x170
[ 3522.740061][   T73]      __sys_sendmsg+0xcd/0x170
[ 3522.740061][   T73]      do_syscall_64+0xc6/0x1e0
[ 3522.740061][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3522.740061][   T73] 
[ 3522.741826][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3522.742118][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3522.742118][   T73]      netdev_get_by_index+0x5e/0x80
[ 3522.742118][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3522.742118][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3522.742118][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3522.742118][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3522.742118][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3522.742118][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3522.742118][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3522.742118][   T73]      addrconf_dad_begin+0x310/0x670
[ 3522.742118][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3522.742118][   T73]      process_one_work+0x84d/0x18a0
[ 3522.742118][   T73]      worker_thread+0x587/0xd30
[ 3522.742118][   T73]      kthread+0x28a/0x350
[ 3522.742118][   T73]      ret_from_fork+0x31/0x70
[ 3522.742118][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3522.742118][   T73] 
[ 3522.744033][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3522.744033][   T73]      netdev_get_by_index+0x5e/0x80
[ 3522.744033][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3522.744033][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3522.744033][   T73]      ip6_route_add+0x1c/0x140
[ 3522.744033][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3522.744033][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3522.744033][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3522.744033][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3522.744033][   T73]      netlink_rcv_skb+0x130/0x360
[ 3522.744033][   T73]      netlink_unicast+0x449/0x710
[ 3522.744033][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3522.744033][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3522.744033][   T73]      ___sys_sendmsg+0xee/0x170
[ 3522.744033][   T73]      __sys_sendmsg+0xcd/0x170
[ 3522.744033][   T73]      do_syscall_64+0xc6/0x1e0
[ 3522.744033][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3522.744033][   T73] 
[ 3522.746036][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3522.746036][   T73]      netdev_get_by_index+0x5e/0x80
[ 3522.746036][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3522.746036][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3522.746036][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3522.746036][   T73]      ipv6_add_addr+0x411/0x2000
[ 3522.746036][   T73]      inet6_addr_add+0x30e/0xa40
[ 3522.746036][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3522.746036][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3522.746036][   T73]      netlink_rcv_skb+0x130/0x360
[ 3522.746036][   T73]      netlink_unicast+0x449/0x710
[ 3522.746036][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3522.746036][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3522.746036][   T73]      ___sys_sendmsg+0xee/0x170
[ 3522.746036][   T73]      __sys_sendmsg+0xcd/0x170
[ 3522.746036][   T73]      do_syscall_64+0xc6/0x1e0
[ 3522.746036][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3522.746036][   T73] 
[ 3522.748057][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3522.748057][   T73]      netdev_get_by_index+0x5e/0x80
[ 3522.748057][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3522.748057][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3522.748057][   T73]      ip6_route_add+0x1c/0x140
[ 3522.748057][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3522.748057][   T73]      addrconf_add_dev+0xe2/0x170
[ 3522.748057][   T73]      inet6_addr_add+0x12f/0xa40
[ 3522.748057][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3522.748057][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3522.748057][   T73]      netlink_rcv_skb+0x130/0x360
[ 3522.748057][   T73]      netlink_unicast+0x449/0x710
[ 3522.748057][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3522.748057][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3522.748057][   T73]      ___sys_sendmsg+0xee/0x170
[ 3522.748057][   T73]      __sys_sendmsg+0xcd/0x170
[ 3522.748057][   T73]      do_syscall_64+0xc6/0x1e0
[ 3522.748057][   T73] 
[ 3522.750112][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3522.750112][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3522.750112][   T73]      ipv6_find_idev+0x102/0x170
[ 3522.750112][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3522.750112][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3522.750112][   T73]      netlink_rcv_skb+0x130/0x360
[ 3522.750112][   T73]      netlink_unicast+0x449/0x710
[ 3522.750112][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3522.750112][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3522.750112][   T73]      ___sys_sendmsg+0xee/0x170
[ 3522.750112][   T73]      __sys_sendmsg+0xcd/0x170
[ 3522.750112][   T73]      do_syscall_64+0xc6/0x1e0
[ 3522.750112][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3522.750112][   T73] 
[ 3522.751662][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3522.751662][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3522.751662][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3522.751662][   T73]      ipv6_find_idev+0x102/0x170
[ 3522.751662][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3522.751662][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3522.751662][   T73]      netlink_rcv_skb+0x130/0x360
[ 3522.751662][   T73]      netlink_unicast+0x449/0x710
[ 3522.751662][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3522.751662][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3522.751662][   T73]      ___sys_sendmsg+0xee/0x170
[ 3522.751662][   T73]      __sys_sendmsg+0xcd/0x170
[ 3522.751662][   T73]      do_syscall_64+0xc6/0x1e0
[ 3522.751662][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3522.751662][   T73] 
[ 3522.753357][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3522.753640][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3522.753640][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3522.753640][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3522.753640][   T73]      fib6_nh_init+0xa22/0x1580
[ 3522.753640][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3522.753640][   T73]      ip6_route_add+0x1c/0x140
[ 3522.753640][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3522.753640][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3522.753640][   T73]      netlink_rcv_skb+0x130/0x360
[ 3522.753640][   T73]      netlink_unicast+0x449/0x710
[ 3522.753640][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3522.753640][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3522.753640][   T73]      ___sys_sendmsg+0xee/0x170
[ 3522.753640][   T73]      __sys_sendmsg+0xcd/0x170
[ 3522.753640][   T73]      do_syscall_64+0xc6/0x1e0
[ 3522.753640][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3522.753640][   T73] 
[ 3522.755716][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3522.755716][   T73]      dst_init+0x84/0x4a0
[ 3522.755716][   T73]      dst_alloc+0x97/0x150
[ 3522.755716][   T73]      ip6_dst_alloc+0x23/0x90
[ 3522.755716][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3522.755716][   T73]      ip6_pol_route+0x56f/0x840
[ 3522.755716][   T73]      fib6_rule_lookup+0x456/0x630
[ 3522.755716][   T73]      ip6_route_input+0x59c/0xa50
[ 3522.755716][   T73]      ipv6_rcv+0x397/0x810
[ 3522.755716][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3522.755716][   T73]      process_backlog+0x101/0x620
[ 3522.755716][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3522.755716][   T73]      net_rx_action+0x495/0xbe0
[ 3522.755716][   T73]      __do_softirq+0x1b5/0x7f6
[ 3522.755716][   T73] 
[ 3522.757723][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3522.757723][   T73]      netdev_get_by_index+0x5e/0x80
[ 3522.757723][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3522.757723][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3522.757723][   T73]      ip6_route_add+0x1c/0x140
[ 3522.757723][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3522.757723][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3522.757723][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3522.757723][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3522.757723][   T73]      netlink_rcv_skb+0x130/0x360
[ 3522.757723][   T73]      netlink_unicast+0x449/0x710
[ 3522.757723][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3522.757723][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3522.757723][   T73]      ___sys_sendmsg+0xee/0x170
[ 3522.757723][   T73]      __sys_sendmsg+0xcd/0x170
[ 3522.757723][   T73]      do_syscall_64+0xc6/0x1e0
[ 3522.757723][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3522.757723][   T73] 
[ 3522.760180][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3522.760180][   T73]      netdev_get_by_index+0x5e/0x80
[ 3522.760180][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3522.760180][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3522.760180][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3522.760180][   T73]      ipv6_add_addr+0x411/0x2000
[ 3522.760180][   T73]      inet6_addr_add+0x30e/0xa40
[ 3522.760180][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3522.760180][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3522.760180][   T73]      netlink_rcv_skb+0x130/0x360
[ 3522.760180][   T73]      netlink_unicast+0x449/0x710
[ 3522.760180][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3522.760180][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3522.760180][   T73]      ___sys_sendmsg+0xee/0x170
[ 3522.760180][   T73]      __sys_sendmsg+0xcd/0x170
[ 3522.760180][   T73]      do_syscall_64+0xc6/0x1e0
[ 3522.760180][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3522.760180][   T73] 
[ 3522.762616][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3522.762616][   T73]      netdev_get_by_index+0x5e/0x80
[ 3522.762616][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3522.762616][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3522.762616][   T73]      ip6_route_add+0x1c/0x140
[ 3522.762616][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3522.762616][   T73]      addrconf_add_dev+0xe2/0x170
[ 3522.762616][   T73]      inet6_addr_add+0x12f/0xa40
[ 3522.762616][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3522.762616][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3522.762616][   T73]      netlink_rcv_skb+0x130/0x360
[ 3522.762616][   T73]      netlink_unicast+0x449/0x710
[ 3522.762616][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3522.762616][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3522.762616][   T73]      ___sys_sendmsg+0xee/0x170
[ 3522.762616][   T73]      __sys_sendmsg+0xcd/0x170
[ 3522.762616][   T73]      do_syscall_64+0xc6/0x1e0
[ 3522.762616][   T73] 
[ 3522.764962][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3522.764962][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3522.764962][   T73]      ipv6_find_idev+0x102/0x170
[ 3522.764962][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3522.764962][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3522.764962][   T73]      netlink_rcv_skb+0x130/0x360
[ 3522.764962][   T73]      netlink_unicast+0x449/0x710
[ 3522.764962][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3522.764962][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3522.764962][   T73]      ___sys_sendmsg+0xee/0x170
[ 3522.764962][   T73]      __sys_sendmsg+0xcd/0x170
[ 3522.764962][   T73]      do_syscall_64+0xc6/0x1e0
[ 3522.764962][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3522.764962][   T73] 
[ 3522.766912][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3522.766912][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3522.766912][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3522.766912][   T73]      ipv6_find_idev+0x102/0x170
[ 3522.766912][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3522.766912][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3522.766912][   T73]      netlink_rcv_skb+0x130/0x360
[ 3522.766912][   T73]      netlink_unicast+0x449/0x710
[ 3522.766912][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3522.766912][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3522.766912][   T73]      ___sys_sendmsg+0xee/0x170
[ 3522.766912][   T73]      __sys_sendmsg+0xcd/0x170
[ 3522.766912][   T73]      do_syscall_64+0xc6/0x1e0
[ 3522.766912][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3522.766912][   T73] 
[ 3522.769025][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3522.769324][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3522.769324][   T73]      netdev_get_by_index+0x5e/0x80
[ 3522.769324][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3522.769324][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3522.769324][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3522.769324][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3522.769324][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3522.769324][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3522.769324][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3522.769324][   T73]      addrconf_dad_begin+0x310/0x670
[ 3522.769324][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3522.769324][   T73]      process_one_work+0x84d/0x18a0
[ 3522.769324][   T73]      worker_thread+0x587/0xd30
[ 3522.769324][   T73]      kthread+0x28a/0x350
[ 3522.769324][   T73]      ret_from_fork+0x31/0x70
[ 3522.769324][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3522.769324][   T73] 
[ 3522.771688][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3522.771688][   T73]      netdev_get_by_index+0x5e/0x80
[ 3522.771688][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3522.771688][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3522.771688][   T73]      ip6_route_add+0x1c/0x140
[ 3522.771688][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3522.771688][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3522.771688][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3522.771688][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3522.771688][   T73]      netlink_rcv_skb+0x130/0x360
[ 3522.771688][   T73]      netlink_unicast+0x449/0x710
[ 3522.771688][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3522.771688][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3522.771688][   T73]      ___sys_sendmsg+0xee/0x170
[ 3522.771688][   T73]      __sys_sendmsg+0xcd/0x170
[ 3522.771688][   T73]      do_syscall_64+0xc6/0x1e0
[ 3522.771688][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3522.771688][   T73] 
[ 3522.774058][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3522.774058][   T73]      netdev_get_by_index+0x5e/0x80
[ 3522.774058][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3522.774058][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3522.774058][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3522.774058][   T73]      ipv6_add_addr+0x411/0x2000
[ 3522.774058][   T73]      inet6_addr_add+0x30e/0xa40
[ 3522.774058][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3522.774058][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3522.774058][   T73]      netlink_rcv_skb+0x130/0x360
[ 3522.774058][   T73]      netlink_unicast+0x449/0x710
[ 3522.774058][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3522.774058][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3522.774058][   T73]      ___sys_sendmsg+0xee/0x170
[ 3522.774058][   T73]      __sys_sendmsg+0xcd/0x170
[ 3522.774058][   T73]      do_syscall_64+0xc6/0x1e0
[ 3522.774058][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3522.774058][   T73] 
[ 3522.776503][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3522.776503][   T73]      netdev_get_by_index+0x5e/0x80
[ 3522.776503][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3522.776503][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3522.776503][   T73]      ip6_route_add+0x1c/0x140
[ 3522.776503][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3522.776503][   T73]      addrconf_add_dev+0xe2/0x170
[ 3522.776503][   T73]      inet6_addr_add+0x12f/0xa40
[ 3522.776503][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3522.776503][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3522.776503][   T73]      netlink_rcv_skb+0x130/0x360
[ 3522.776503][   T73]      netlink_unicast+0x449/0x710
[ 3522.776503][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3522.776503][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3522.776503][   T73]      ___sys_sendmsg+0xee/0x170
[ 3522.776503][   T73]      __sys_sendmsg+0xcd/0x170
[ 3522.776503][   T73]      do_syscall_64+0xc6/0x1e0
[ 3522.776503][   T73] 
[ 3522.778987][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3522.778987][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3522.778987][   T73]      ipv6_find_idev+0x102/0x170
[ 3522.778987][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3522.778987][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3522.778987][   T73]      netlink_rcv_skb+0x130/0x360
[ 3522.778987][   T73]      netlink_unicast+0x449/0x710
[ 3522.778987][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3522.778987][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3522.778987][   T73]      ___sys_sendmsg+0xee/0x170
[ 3522.778987][   T73]      __sys_sendmsg+0xcd/0x170
[ 3522.778987][   T73]      do_syscall_64+0xc6/0x1e0
[ 3522.778987][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3522.778987][   T73] 
[ 3522.780863][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3522.780863][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3522.780863][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3522.780863][   T73]      ipv6_find_idev+0x102/0x170
[ 3522.780863][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3522.780863][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3522.780863][   T73]      netlink_rcv_skb+0x130/0x360
[ 3522.780863][   T73]      netlink_unicast+0x449/0x710
[ 3522.780863][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3522.780863][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3522.780863][   T73]      ___sys_sendmsg+0xee/0x170
[ 3522.780863][   T73]      __sys_sendmsg+0xcd/0x170
[ 3522.780863][   T73]      do_syscall_64+0xc6/0x1e0
[ 3522.780863][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3522.780863][   T73] 
[ 3533.023772][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3533.024232][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3533.024232][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3533.024232][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3533.024232][   T73]      fib6_nh_init+0xa22/0x1580
[ 3533.024232][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3533.024232][   T73]      ip6_route_add+0x1c/0x140
[ 3533.024232][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3533.024232][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3533.024232][   T73]      netlink_rcv_skb+0x130/0x360
[ 3533.024232][   T73]      netlink_unicast+0x449/0x710
[ 3533.024232][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3533.024232][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3533.024232][   T73]      ___sys_sendmsg+0xee/0x170
[ 3533.024232][   T73]      __sys_sendmsg+0xcd/0x170
[ 3533.024232][   T73]      do_syscall_64+0xc6/0x1e0
[ 3533.024232][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3533.024232][   T73] 
[ 3533.026334][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3533.026334][   T73]      dst_init+0x84/0x4a0
[ 3533.026334][   T73]      dst_alloc+0x97/0x150
[ 3533.026334][   T73]      ip6_dst_alloc+0x23/0x90
[ 3533.026334][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3533.026334][   T73]      ip6_pol_route+0x56f/0x840
[ 3533.026334][   T73]      fib6_rule_lookup+0x456/0x630
[ 3533.026334][   T73]      ip6_route_input+0x59c/0xa50
[ 3533.026334][   T73]      ipv6_rcv+0x397/0x810
[ 3533.026334][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3533.026334][   T73]      process_backlog+0x101/0x620
[ 3533.026334][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3533.026334][   T73]      net_rx_action+0x495/0xbe0
[ 3533.026334][   T73]      __do_softirq+0x1b5/0x7f6
[ 3533.026334][   T73] 
[ 3533.028183][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3533.028183][   T73]      netdev_get_by_index+0x5e/0x80
[ 3533.028183][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3533.028183][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3533.028183][   T73]      ip6_route_add+0x1c/0x140
[ 3533.028183][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3533.028183][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3533.028183][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3533.028183][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3533.028183][   T73]      netlink_rcv_skb+0x130/0x360
[ 3533.028183][   T73]      netlink_unicast+0x449/0x710
[ 3533.028183][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3533.028183][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3533.028183][   T73]      ___sys_sendmsg+0xee/0x170
[ 3533.028183][   T73]      __sys_sendmsg+0xcd/0x170
[ 3533.028183][   T73]      do_syscall_64+0xc6/0x1e0
[ 3533.028183][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3533.028183][   T73] 
[ 3533.030378][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3533.030378][   T73]      netdev_get_by_index+0x5e/0x80
[ 3533.030378][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3533.030378][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3533.030378][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3533.030378][   T73]      ipv6_add_addr+0x411/0x2000
[ 3533.030378][   T73]      inet6_addr_add+0x30e/0xa40
[ 3533.030378][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3533.030378][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3533.030378][   T73]      netlink_rcv_skb+0x130/0x360
[ 3533.030378][   T73]      netlink_unicast+0x449/0x710
[ 3533.030378][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3533.030378][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3533.030378][   T73]      ___sys_sendmsg+0xee/0x170
[ 3533.030378][   T73]      __sys_sendmsg+0xcd/0x170
[ 3533.030378][   T73]      do_syscall_64+0xc6/0x1e0
[ 3533.030378][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3533.030378][   T73] 
[ 3533.032596][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3533.032596][   T73]      netdev_get_by_index+0x5e/0x80
[ 3533.032596][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3533.032596][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3533.032596][   T73]      ip6_route_add+0x1c/0x140
[ 3533.032596][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3533.032596][   T73]      addrconf_add_dev+0xe2/0x170
[ 3533.032596][   T73]      inet6_addr_add+0x12f/0xa40
[ 3533.032596][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3533.032596][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3533.032596][   T73]      netlink_rcv_skb+0x130/0x360
[ 3533.032596][   T73]      netlink_unicast+0x449/0x710
[ 3533.032596][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3533.032596][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3533.032596][   T73]      ___sys_sendmsg+0xee/0x170
[ 3533.032596][   T73]      __sys_sendmsg+0xcd/0x170
[ 3533.032596][   T73]      do_syscall_64+0xc6/0x1e0
[ 3533.032596][   T73] 
[ 3533.034761][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3533.034761][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3533.034761][   T73]      ipv6_find_idev+0x102/0x170
[ 3533.034761][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3533.034761][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3533.034761][   T73]      netlink_rcv_skb+0x130/0x360
[ 3533.034761][   T73]      netlink_unicast+0x449/0x710
[ 3533.034761][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3533.034761][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3533.034761][   T73]      ___sys_sendmsg+0xee/0x170
[ 3533.034761][   T73]      __sys_sendmsg+0xcd/0x170
[ 3533.034761][   T73]      do_syscall_64+0xc6/0x1e0
[ 3533.034761][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3533.034761][   T73] 
[ 3533.036454][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3533.036454][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3533.036454][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3533.036454][   T73]      ipv6_find_idev+0x102/0x170
[ 3533.036454][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3533.036454][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3533.036454][   T73]      netlink_rcv_skb+0x130/0x360
[ 3533.036454][   T73]      netlink_unicast+0x449/0x710
[ 3533.036454][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3533.036454][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3533.036454][   T73]      ___sys_sendmsg+0xee/0x170
[ 3533.036454][   T73]      __sys_sendmsg+0xcd/0x170
[ 3533.036454][   T73]      do_syscall_64+0xc6/0x1e0
[ 3533.036454][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3533.036454][   T73] 
[ 3533.038314][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3533.038617][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3533.038617][   T73]      netdev_get_by_index+0x5e/0x80
[ 3533.038617][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3533.038617][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3533.038617][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3533.038617][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3533.038617][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3533.038617][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3533.038617][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3533.038617][   T73]      addrconf_dad_begin+0x310/0x670
[ 3533.038617][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3533.038617][   T73]      process_one_work+0x84d/0x18a0
[ 3533.038617][   T73]      worker_thread+0x587/0xd30
[ 3533.038617][   T73]      kthread+0x28a/0x350
[ 3533.038617][   T73]      ret_from_fork+0x31/0x70
[ 3533.038617][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3533.038617][   T73] 
[ 3533.040713][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3533.040713][   T73]      netdev_get_by_index+0x5e/0x80
[ 3533.040713][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3533.040713][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3533.040713][   T73]      ip6_route_add+0x1c/0x140
[ 3533.040713][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3533.040713][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3533.040713][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3533.040713][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3533.040713][   T73]      netlink_rcv_skb+0x130/0x360
[ 3533.040713][   T73]      netlink_unicast+0x449/0x710
[ 3533.040713][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3533.040713][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3533.040713][   T73]      ___sys_sendmsg+0xee/0x170
[ 3533.040713][   T73]      __sys_sendmsg+0xcd/0x170
[ 3533.040713][   T73]      do_syscall_64+0xc6/0x1e0
[ 3533.040713][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3533.040713][   T73] 
[ 3533.042910][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3533.042910][   T73]      netdev_get_by_index+0x5e/0x80
[ 3533.042910][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3533.042910][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3533.042910][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3533.042910][   T73]      ipv6_add_addr+0x411/0x2000
[ 3533.042910][   T73]      inet6_addr_add+0x30e/0xa40
[ 3533.042910][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3533.042910][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3533.042910][   T73]      netlink_rcv_skb+0x130/0x360
[ 3533.042910][   T73]      netlink_unicast+0x449/0x710
[ 3533.042910][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3533.042910][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3533.042910][   T73]      ___sys_sendmsg+0xee/0x170
[ 3533.042910][   T73]      __sys_sendmsg+0xcd/0x170
[ 3533.042910][   T73]      do_syscall_64+0xc6/0x1e0
[ 3533.042910][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3533.042910][   T73] 
[ 3533.045101][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3533.045101][   T73]      netdev_get_by_index+0x5e/0x80
[ 3533.045101][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3533.045101][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3533.045101][   T73]      ip6_route_add+0x1c/0x140
[ 3533.045101][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3533.045101][   T73]      addrconf_add_dev+0xe2/0x170
[ 3533.045101][   T73]      inet6_addr_add+0x12f/0xa40
[ 3533.045101][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3533.045101][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3533.045101][   T73]      netlink_rcv_skb+0x130/0x360
[ 3533.045101][   T73]      netlink_unicast+0x449/0x710
[ 3533.045101][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3533.045101][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3533.045101][   T73]      ___sys_sendmsg+0xee/0x170
[ 3533.045101][   T73]      __sys_sendmsg+0xcd/0x170
[ 3533.045101][   T73]      do_syscall_64+0xc6/0x1e0
[ 3533.045101][   T73] 
[ 3533.047256][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3533.047256][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3533.047256][   T73]      ipv6_find_idev+0x102/0x170
[ 3533.047256][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3533.047256][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3533.047256][   T73]      netlink_rcv_skb+0x130/0x360
[ 3533.047256][   T73]      netlink_unicast+0x449/0x710
[ 3533.047256][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3533.047256][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3533.047256][   T73]      ___sys_sendmsg+0xee/0x170
[ 3533.047256][   T73]      __sys_sendmsg+0xcd/0x170
[ 3533.047256][   T73]      do_syscall_64+0xc6/0x1e0
[ 3533.047256][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3533.047256][   T73] 
[ 3533.048954][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3533.048954][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3533.048954][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3533.048954][   T73]      ipv6_find_idev+0x102/0x170
[ 3533.048954][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3533.048954][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3533.048954][   T73]      netlink_rcv_skb+0x130/0x360
[ 3533.048954][   T73]      netlink_unicast+0x449/0x710
[ 3533.048954][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3533.048954][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3533.048954][   T73]      ___sys_sendmsg+0xee/0x170
[ 3533.048954][   T73]      __sys_sendmsg+0xcd/0x170
[ 3533.048954][   T73]      do_syscall_64+0xc6/0x1e0
[ 3533.048954][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3533.048954][   T73] 
[ 3533.050768][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3533.051050][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3533.051050][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3533.051050][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3533.051050][   T73]      fib6_nh_init+0xa22/0x1580
[ 3533.051050][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3533.051050][   T73]      ip6_route_add+0x1c/0x140
[ 3533.051050][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3533.051050][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3533.051050][   T73]      netlink_rcv_skb+0x130/0x360
[ 3533.051050][   T73]      netlink_unicast+0x449/0x710
[ 3533.051050][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3533.051050][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3533.051050][   T73]      ___sys_sendmsg+0xee/0x170
[ 3533.051050][   T73]      __sys_sendmsg+0xcd/0x170
[ 3533.051050][   T73]      do_syscall_64+0xc6/0x1e0
[ 3533.051050][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3533.051050][   T73] 
[ 3533.053284][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3533.053284][   T73]      dst_init+0x84/0x4a0
[ 3533.053284][   T73]      dst_alloc+0x97/0x150
[ 3533.053284][   T73]      ip6_dst_alloc+0x23/0x90
[ 3533.053284][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3533.053284][   T73]      ip6_pol_route+0x56f/0x840
[ 3533.053284][   T73]      fib6_rule_lookup+0x456/0x630
[ 3533.053284][   T73]      ip6_route_input+0x59c/0xa50
[ 3533.053284][   T73]      ipv6_rcv+0x397/0x810
[ 3533.053284][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3533.053284][   T73]      process_backlog+0x101/0x620
[ 3533.053284][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3533.053284][   T73]      net_rx_action+0x495/0xbe0
[ 3533.053284][   T73]      __do_softirq+0x1b5/0x7f6
[ 3533.053284][   T73] 
[ 3533.055280][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3533.055280][   T73]      netdev_get_by_index+0x5e/0x80
[ 3533.055280][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3533.055280][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3533.055280][   T73]      ip6_route_add+0x1c/0x140
[ 3533.055280][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3533.055280][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3533.055280][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3533.055280][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3533.055280][   T73]      netlink_rcv_skb+0x130/0x360
[ 3533.055280][   T73]      netlink_unicast+0x449/0x710
[ 3533.055280][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3533.055280][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3533.055280][   T73]      ___sys_sendmsg+0xee/0x170
[ 3533.055280][   T73]      __sys_sendmsg+0xcd/0x170
[ 3533.055280][   T73]      do_syscall_64+0xc6/0x1e0
[ 3533.055280][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3533.055280][   T73] 
[ 3533.057738][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3533.057738][   T73]      netdev_get_by_index+0x5e/0x80
[ 3533.057738][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3533.057738][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3533.057738][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3533.057738][   T73]      ipv6_add_addr+0x411/0x2000
[ 3533.057738][   T73]      inet6_addr_add+0x30e/0xa40
[ 3533.057738][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3533.057738][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3533.057738][   T73]      netlink_rcv_skb+0x130/0x360
[ 3533.057738][   T73]      netlink_unicast+0x449/0x710
[ 3533.057738][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3533.057738][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3533.057738][   T73]      ___sys_sendmsg+0xee/0x170
[ 3533.057738][   T73]      __sys_sendmsg+0xcd/0x170
[ 3533.057738][   T73]      do_syscall_64+0xc6/0x1e0
[ 3533.057738][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3533.057738][   T73] 
[ 3533.060239][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3533.060239][   T73]      netdev_get_by_index+0x5e/0x80
[ 3533.060239][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3533.060239][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3533.060239][   T73]      ip6_route_add+0x1c/0x140
[ 3533.060239][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3533.060239][   T73]      addrconf_add_dev+0xe2/0x170
[ 3533.060239][   T73]      inet6_addr_add+0x12f/0xa40
[ 3533.060239][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3533.060239][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3533.060239][   T73]      netlink_rcv_skb+0x130/0x360
[ 3533.060239][   T73]      netlink_unicast+0x449/0x710
[ 3533.060239][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3533.060239][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3533.060239][   T73]      ___sys_sendmsg+0xee/0x170
[ 3533.060239][   T73]      __sys_sendmsg+0xcd/0x170
[ 3533.060239][   T73]      do_syscall_64+0xc6/0x1e0
[ 3533.060239][   T73] 
[ 3533.062580][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3533.062580][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3533.062580][   T73]      ipv6_find_idev+0x102/0x170
[ 3533.062580][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3533.062580][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3533.062580][   T73]      netlink_rcv_skb+0x130/0x360
[ 3533.062580][   T73]      netlink_unicast+0x449/0x710
[ 3533.062580][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3533.062580][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3533.062580][   T73]      ___sys_sendmsg+0xee/0x170
[ 3533.062580][   T73]      __sys_sendmsg+0xcd/0x170
[ 3533.062580][   T73]      do_syscall_64+0xc6/0x1e0
[ 3533.062580][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3533.062580][   T73] 
[ 3533.064467][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3533.064467][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3533.064467][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3533.064467][   T73]      ipv6_find_idev+0x102/0x170
[ 3533.064467][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3533.064467][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3533.064467][   T73]      netlink_rcv_skb+0x130/0x360
[ 3533.064467][   T73]      netlink_unicast+0x449/0x710
[ 3533.064467][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3533.064467][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3533.064467][   T73]      ___sys_sendmsg+0xee/0x170
[ 3533.064467][   T73]      __sys_sendmsg+0xcd/0x170
[ 3533.064467][   T73]      do_syscall_64+0xc6/0x1e0
[ 3533.064467][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3533.064467][   T73] 
[ 3533.066552][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3533.067283][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3533.067283][   T73]      netdev_get_by_index+0x5e/0x80
[ 3533.067283][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3533.067283][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3533.067283][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3533.067283][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3533.067283][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3533.067283][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3533.067283][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3533.067283][   T73]      addrconf_dad_begin+0x310/0x670
[ 3533.067283][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3533.067283][   T73]      process_one_work+0x84d/0x18a0
[ 3533.067283][   T73]      worker_thread+0x587/0xd30
[ 3533.067283][   T73]      kthread+0x28a/0x350
[ 3533.067283][   T73]      ret_from_fork+0x31/0x70
[ 3533.067283][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3533.067283][   T73] 
[ 3533.069396][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3533.069396][   T73]      netdev_get_by_index+0x5e/0x80
[ 3533.069396][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3533.069396][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3533.069396][   T73]      ip6_route_add+0x1c/0x140
[ 3533.069396][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3533.069396][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3533.069396][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3533.069396][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3533.069396][   T73]      netlink_rcv_skb+0x130/0x360
[ 3533.069396][   T73]      netlink_unicast+0x449/0x710
[ 3533.069396][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3533.069396][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3533.069396][   T73]      ___sys_sendmsg+0xee/0x170
[ 3533.069396][   T73]      __sys_sendmsg+0xcd/0x170
[ 3533.069396][   T73]      do_syscall_64+0xc6/0x1e0
[ 3533.069396][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3533.069396][   T73] 
[ 3533.071703][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3533.071703][   T73]      netdev_get_by_index+0x5e/0x80
[ 3533.071703][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3533.071703][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3533.071703][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3533.071703][   T73]      ipv6_add_addr+0x411/0x2000
[ 3533.071703][   T73]      inet6_addr_add+0x30e/0xa40
[ 3533.071703][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3533.071703][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3533.071703][   T73]      netlink_rcv_skb+0x130/0x360
[ 3533.071703][   T73]      netlink_unicast+0x449/0x710
[ 3533.071703][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3533.071703][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3533.071703][   T73]      ___sys_sendmsg+0xee/0x170
[ 3533.071703][   T73]      __sys_sendmsg+0xcd/0x170
[ 3533.071703][   T73]      do_syscall_64+0xc6/0x1e0
[ 3533.071703][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3533.071703][   T73] 
[ 3533.074123][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3533.074123][   T73]      netdev_get_by_index+0x5e/0x80
[ 3533.074123][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3533.074123][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3533.074123][   T73]      ip6_route_add+0x1c/0x140
[ 3533.074123][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3533.074123][   T73]      addrconf_add_dev+0xe2/0x170
[ 3533.074123][   T73]      inet6_addr_add+0x12f/0xa40
[ 3533.074123][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3533.074123][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3533.074123][   T73]      netlink_rcv_skb+0x130/0x360
[ 3533.074123][   T73]      netlink_unicast+0x449/0x710
[ 3533.074123][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3533.074123][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3533.074123][   T73]      ___sys_sendmsg+0xee/0x170
[ 3533.074123][   T73]      __sys_sendmsg+0xcd/0x170
[ 3533.074123][   T73]      do_syscall_64+0xc6/0x1e0
[ 3533.074123][   T73] 
[ 3533.076499][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3533.076499][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3533.076499][   T73]      ipv6_find_idev+0x102/0x170
[ 3533.076499][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3533.076499][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3533.076499][   T73]      netlink_rcv_skb+0x130/0x360
[ 3533.076499][   T73]      netlink_unicast+0x449/0x710
[ 3533.076499][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3533.076499][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3533.076499][   T73]      ___sys_sendmsg+0xee/0x170
[ 3533.076499][   T73]      __sys_sendmsg+0xcd/0x170
[ 3533.076499][   T73]      do_syscall_64+0xc6/0x1e0
[ 3533.076499][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3533.076499][   T73] 
[ 3533.078436][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3533.078436][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3533.078436][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3533.078436][   T73]      ipv6_find_idev+0x102/0x170
[ 3533.078436][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3533.078436][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3533.078436][   T73]      netlink_rcv_skb+0x130/0x360
[ 3533.078436][   T73]      netlink_unicast+0x449/0x710
[ 3533.078436][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3533.078436][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3533.078436][   T73]      ___sys_sendmsg+0xee/0x170
[ 3533.078436][   T73]      __sys_sendmsg+0xcd/0x170
[ 3533.078436][   T73]      do_syscall_64+0xc6/0x1e0
[ 3533.078436][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3533.078436][   T73] 
[ 3543.143813][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3543.144352][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3543.144352][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3543.144352][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3543.144352][   T73]      fib6_nh_init+0xa22/0x1580
[ 3543.144352][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3543.144352][   T73]      ip6_route_add+0x1c/0x140
[ 3543.144352][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3543.144352][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3543.144352][   T73]      netlink_rcv_skb+0x130/0x360
[ 3543.144352][   T73]      netlink_unicast+0x449/0x710
[ 3543.144352][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3543.144352][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3543.144352][   T73]      ___sys_sendmsg+0xee/0x170
[ 3543.144352][   T73]      __sys_sendmsg+0xcd/0x170
[ 3543.144352][   T73]      do_syscall_64+0xc6/0x1e0
[ 3543.144352][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3543.144352][   T73] 
[ 3543.146277][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3543.146277][   T73]      dst_init+0x84/0x4a0
[ 3543.146277][   T73]      dst_alloc+0x97/0x150
[ 3543.146277][   T73]      ip6_dst_alloc+0x23/0x90
[ 3543.146277][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3543.146277][   T73]      ip6_pol_route+0x56f/0x840
[ 3543.146277][   T73]      fib6_rule_lookup+0x456/0x630
[ 3543.146277][   T73]      ip6_route_input+0x59c/0xa50
[ 3543.146277][   T73]      ipv6_rcv+0x397/0x810
[ 3543.146277][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3543.146277][   T73]      process_backlog+0x101/0x620
[ 3543.146277][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3543.146277][   T73]      net_rx_action+0x495/0xbe0
[ 3543.146277][   T73]      __do_softirq+0x1b5/0x7f6
[ 3543.146277][   T73] 
[ 3543.147925][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3543.147925][   T73]      netdev_get_by_index+0x5e/0x80
[ 3543.147925][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3543.147925][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3543.147925][   T73]      ip6_route_add+0x1c/0x140
[ 3543.147925][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3543.147925][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3543.147925][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3543.147925][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3543.147925][   T73]      netlink_rcv_skb+0x130/0x360
[ 3543.147925][   T73]      netlink_unicast+0x449/0x710
[ 3543.147925][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3543.147925][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3543.147925][   T73]      ___sys_sendmsg+0xee/0x170
[ 3543.147925][   T73]      __sys_sendmsg+0xcd/0x170
[ 3543.147925][   T73]      do_syscall_64+0xc6/0x1e0
[ 3543.147925][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3543.147925][   T73] 
[ 3543.149970][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3543.149970][   T73]      netdev_get_by_index+0x5e/0x80
[ 3543.149970][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3543.149970][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3543.149970][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3543.149970][   T73]      ipv6_add_addr+0x411/0x2000
[ 3543.149970][   T73]      inet6_addr_add+0x30e/0xa40
[ 3543.149970][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3543.149970][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3543.149970][   T73]      netlink_rcv_skb+0x130/0x360
[ 3543.149970][   T73]      netlink_unicast+0x449/0x710
[ 3543.149970][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3543.149970][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3543.149970][   T73]      ___sys_sendmsg+0xee/0x170
[ 3543.149970][   T73]      __sys_sendmsg+0xcd/0x170
[ 3543.149970][   T73]      do_syscall_64+0xc6/0x1e0
[ 3543.149970][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3543.149970][   T73] 
[ 3543.151967][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3543.151967][   T73]      netdev_get_by_index+0x5e/0x80
[ 3543.151967][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3543.151967][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3543.151967][   T73]      ip6_route_add+0x1c/0x140
[ 3543.151967][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3543.151967][   T73]      addrconf_add_dev+0xe2/0x170
[ 3543.151967][   T73]      inet6_addr_add+0x12f/0xa40
[ 3543.151967][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3543.151967][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3543.151967][   T73]      netlink_rcv_skb+0x130/0x360
[ 3543.151967][   T73]      netlink_unicast+0x449/0x710
[ 3543.151967][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3543.151967][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3543.151967][   T73]      ___sys_sendmsg+0xee/0x170
[ 3543.151967][   T73]      __sys_sendmsg+0xcd/0x170
[ 3543.151967][   T73]      do_syscall_64+0xc6/0x1e0
[ 3543.151967][   T73] 
[ 3543.153926][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3543.153926][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3543.153926][   T73]      ipv6_find_idev+0x102/0x170
[ 3543.153926][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3543.153926][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3543.153926][   T73]      netlink_rcv_skb+0x130/0x360
[ 3543.153926][   T73]      netlink_unicast+0x449/0x710
[ 3543.153926][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3543.153926][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3543.153926][   T73]      ___sys_sendmsg+0xee/0x170
[ 3543.153926][   T73]      __sys_sendmsg+0xcd/0x170
[ 3543.153926][   T73]      do_syscall_64+0xc6/0x1e0
[ 3543.153926][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3543.153926][   T73] 
[ 3543.155465][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3543.155465][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3543.155465][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3543.155465][   T73]      ipv6_find_idev+0x102/0x170
[ 3543.155465][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3543.155465][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3543.155465][   T73]      netlink_rcv_skb+0x130/0x360
[ 3543.155465][   T73]      netlink_unicast+0x449/0x710
[ 3543.155465][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3543.155465][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3543.155465][   T73]      ___sys_sendmsg+0xee/0x170
[ 3543.155465][   T73]      __sys_sendmsg+0xcd/0x170
[ 3543.155465][   T73]      do_syscall_64+0xc6/0x1e0
[ 3543.155465][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3543.155465][   T73] 
[ 3543.157166][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3543.157456][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3543.157456][   T73]      netdev_get_by_index+0x5e/0x80
[ 3543.157456][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3543.157456][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3543.157456][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3543.157456][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3543.157456][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3543.157456][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3543.157456][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3543.157456][   T73]      addrconf_dad_begin+0x310/0x670
[ 3543.157456][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3543.157456][   T73]      process_one_work+0x84d/0x18a0
[ 3543.157456][   T73]      worker_thread+0x587/0xd30
[ 3543.157456][   T73]      kthread+0x28a/0x350
[ 3543.157456][   T73]      ret_from_fork+0x31/0x70
[ 3543.157456][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3543.157456][   T73] 
[ 3543.159371][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3543.159371][   T73]      netdev_get_by_index+0x5e/0x80
[ 3543.159371][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3543.159371][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3543.159371][   T73]      ip6_route_add+0x1c/0x140
[ 3543.159371][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3543.159371][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3543.159371][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3543.159371][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3543.159371][   T73]      netlink_rcv_skb+0x130/0x360
[ 3543.159371][   T73]      netlink_unicast+0x449/0x710
[ 3543.159371][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3543.159371][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3543.159371][   T73]      ___sys_sendmsg+0xee/0x170
[ 3543.159371][   T73]      __sys_sendmsg+0xcd/0x170
[ 3543.159371][   T73]      do_syscall_64+0xc6/0x1e0
[ 3543.159371][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3543.159371][   T73] 
[ 3543.161368][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3543.161368][   T73]      netdev_get_by_index+0x5e/0x80
[ 3543.161368][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3543.161368][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3543.161368][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3543.161368][   T73]      ipv6_add_addr+0x411/0x2000
[ 3543.161368][   T73]      inet6_addr_add+0x30e/0xa40
[ 3543.161368][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3543.161368][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3543.161368][   T73]      netlink_rcv_skb+0x130/0x360
[ 3543.161368][   T73]      netlink_unicast+0x449/0x710
[ 3543.161368][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3543.161368][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3543.161368][   T73]      ___sys_sendmsg+0xee/0x170
[ 3543.161368][   T73]      __sys_sendmsg+0xcd/0x170
[ 3543.161368][   T73]      do_syscall_64+0xc6/0x1e0
[ 3543.161368][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3543.161368][   T73] 
[ 3543.163365][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3543.163365][   T73]      netdev_get_by_index+0x5e/0x80
[ 3543.163365][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3543.163365][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3543.163365][   T73]      ip6_route_add+0x1c/0x140
[ 3543.163365][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3543.163365][   T73]      addrconf_add_dev+0xe2/0x170
[ 3543.163365][   T73]      inet6_addr_add+0x12f/0xa40
[ 3543.163365][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3543.163365][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3543.163365][   T73]      netlink_rcv_skb+0x130/0x360
[ 3543.163365][   T73]      netlink_unicast+0x449/0x710
[ 3543.163365][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3543.163365][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3543.163365][   T73]      ___sys_sendmsg+0xee/0x170
[ 3543.163365][   T73]      __sys_sendmsg+0xcd/0x170
[ 3543.163365][   T73]      do_syscall_64+0xc6/0x1e0
[ 3543.163365][   T73] 
[ 3543.165317][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3543.165317][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3543.165317][   T73]      ipv6_find_idev+0x102/0x170
[ 3543.165317][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3543.165317][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3543.165317][   T73]      netlink_rcv_skb+0x130/0x360
[ 3543.165317][   T73]      netlink_unicast+0x449/0x710
[ 3543.165317][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3543.165317][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3543.165317][   T73]      ___sys_sendmsg+0xee/0x170
[ 3543.165317][   T73]      __sys_sendmsg+0xcd/0x170
[ 3543.165317][   T73]      do_syscall_64+0xc6/0x1e0
[ 3543.165317][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3543.165317][   T73] 
[ 3543.166849][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3543.166849][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3543.166849][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3543.166849][   T73]      ipv6_find_idev+0x102/0x170
[ 3543.166849][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3543.166849][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3543.166849][   T73]      netlink_rcv_skb+0x130/0x360
[ 3543.166849][   T73]      netlink_unicast+0x449/0x710
[ 3543.166849][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3543.166849][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3543.166849][   T73]      ___sys_sendmsg+0xee/0x170
[ 3543.166849][   T73]      __sys_sendmsg+0xcd/0x170
[ 3543.166849][   T73]      do_syscall_64+0xc6/0x1e0
[ 3543.166849][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3543.166849][   T73] 
[ 3543.168544][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3543.168825][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3543.168825][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3543.168825][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3543.168825][   T73]      fib6_nh_init+0xa22/0x1580
[ 3543.168825][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3543.168825][   T73]      ip6_route_add+0x1c/0x140
[ 3543.168825][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3543.168825][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3543.168825][   T73]      netlink_rcv_skb+0x130/0x360
[ 3543.168825][   T73]      netlink_unicast+0x449/0x710
[ 3543.168825][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3543.168825][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3543.168825][   T73]      ___sys_sendmsg+0xee/0x170
[ 3543.168825][   T73]      __sys_sendmsg+0xcd/0x170
[ 3543.168825][   T73]      do_syscall_64+0xc6/0x1e0
[ 3543.168825][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3543.168825][   T73] 
[ 3543.170895][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3543.170895][   T73]      dst_init+0x84/0x4a0
[ 3543.170895][   T73]      dst_alloc+0x97/0x150
[ 3543.170895][   T73]      ip6_dst_alloc+0x23/0x90
[ 3543.170895][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3543.170895][   T73]      ip6_pol_route+0x56f/0x840
[ 3543.170895][   T73]      fib6_rule_lookup+0x456/0x630
[ 3543.170895][   T73]      ip6_route_input+0x59c/0xa50
[ 3543.170895][   T73]      ipv6_rcv+0x397/0x810
[ 3543.170895][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3543.170895][   T73]      process_backlog+0x101/0x620
[ 3543.170895][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3543.170895][   T73]      net_rx_action+0x495/0xbe0
[ 3543.170895][   T73]      __do_softirq+0x1b5/0x7f6
[ 3543.170895][   T73] 
[ 3543.172817][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3543.172817][   T73]      netdev_get_by_index+0x5e/0x80
[ 3543.172817][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3543.172817][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3543.172817][   T73]      ip6_route_add+0x1c/0x140
[ 3543.172817][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3543.172817][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3543.172817][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3543.172817][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3543.172817][   T73]      netlink_rcv_skb+0x130/0x360
[ 3543.172817][   T73]      netlink_unicast+0x449/0x710
[ 3543.172817][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3543.172817][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3543.172817][   T73]      ___sys_sendmsg+0xee/0x170
[ 3543.172817][   T73]      __sys_sendmsg+0xcd/0x170
[ 3543.172817][   T73]      do_syscall_64+0xc6/0x1e0
[ 3543.172817][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3543.172817][   T73] 
[ 3543.175133][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3543.175133][   T73]      netdev_get_by_index+0x5e/0x80
[ 3543.175133][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3543.175133][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3543.175133][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3543.175133][   T73]      ipv6_add_addr+0x411/0x2000
[ 3543.175133][   T73]      inet6_addr_add+0x30e/0xa40
[ 3543.175133][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3543.175133][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3543.175133][   T73]      netlink_rcv_skb+0x130/0x360
[ 3543.175133][   T73]      netlink_unicast+0x449/0x710
[ 3543.175133][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3543.175133][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3543.175133][   T73]      ___sys_sendmsg+0xee/0x170
[ 3543.175133][   T73]      __sys_sendmsg+0xcd/0x170
[ 3543.175133][   T73]      do_syscall_64+0xc6/0x1e0
[ 3543.175133][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3543.175133][   T73] 
[ 3543.177418][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3543.177418][   T73]      netdev_get_by_index+0x5e/0x80
[ 3543.177418][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3543.177418][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3543.177418][   T73]      ip6_route_add+0x1c/0x140
[ 3543.177418][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3543.177418][   T73]      addrconf_add_dev+0xe2/0x170
[ 3543.177418][   T73]      inet6_addr_add+0x12f/0xa40
[ 3543.177418][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3543.177418][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3543.177418][   T73]      netlink_rcv_skb+0x130/0x360
[ 3543.177418][   T73]      netlink_unicast+0x449/0x710
[ 3543.177418][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3543.177418][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3543.177418][   T73]      ___sys_sendmsg+0xee/0x170
[ 3543.177418][   T73]      __sys_sendmsg+0xcd/0x170
[ 3543.177418][   T73]      do_syscall_64+0xc6/0x1e0
[ 3543.177418][   T73] 
[ 3543.179595][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3543.179595][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3543.179595][   T73]      ipv6_find_idev+0x102/0x170
[ 3543.179595][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3543.179595][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3543.179595][   T73]      netlink_rcv_skb+0x130/0x360
[ 3543.179595][   T73]      netlink_unicast+0x449/0x710
[ 3543.179595][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3543.179595][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3543.179595][   T73]      ___sys_sendmsg+0xee/0x170
[ 3543.179595][   T73]      __sys_sendmsg+0xcd/0x170
[ 3543.179595][   T73]      do_syscall_64+0xc6/0x1e0
[ 3543.179595][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3543.179595][   T73] 
[ 3543.181372][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3543.181372][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3543.181372][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3543.181372][   T73]      ipv6_find_idev+0x102/0x170
[ 3543.181372][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3543.181372][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3543.181372][   T73]      netlink_rcv_skb+0x130/0x360
[ 3543.181372][   T73]      netlink_unicast+0x449/0x710
[ 3543.181372][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3543.181372][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3543.181372][   T73]      ___sys_sendmsg+0xee/0x170
[ 3543.181372][   T73]      __sys_sendmsg+0xcd/0x170
[ 3543.181372][   T73]      do_syscall_64+0xc6/0x1e0
[ 3543.181372][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3543.181372][   T73] 
[ 3543.183299][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3543.183574][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3543.183574][   T73]      netdev_get_by_index+0x5e/0x80
[ 3543.183574][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3543.183574][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3543.183574][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3543.183574][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3543.183574][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3543.183574][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3543.183574][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3543.183574][   T73]      addrconf_dad_begin+0x310/0x670
[ 3543.183574][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3543.183574][   T73]      process_one_work+0x84d/0x18a0
[ 3543.183574][   T73]      worker_thread+0x587/0xd30
[ 3543.183574][   T73]      kthread+0x28a/0x350
[ 3543.183574][   T73]      ret_from_fork+0x31/0x70
[ 3543.183574][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3543.183574][   T73] 
[ 3543.185800][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3543.185800][   T73]      netdev_get_by_index+0x5e/0x80
[ 3543.185800][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3543.185800][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3543.185800][   T73]      ip6_route_add+0x1c/0x140
[ 3543.185800][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3543.185800][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3543.185800][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3543.185800][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3543.185800][   T73]      netlink_rcv_skb+0x130/0x360
[ 3543.185800][   T73]      netlink_unicast+0x449/0x710
[ 3543.185800][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3543.185800][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3543.185800][   T73]      ___sys_sendmsg+0xee/0x170
[ 3543.185800][   T73]      __sys_sendmsg+0xcd/0x170
[ 3543.185800][   T73]      do_syscall_64+0xc6/0x1e0
[ 3543.185800][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3543.185800][   T73] 
[ 3543.187994][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3543.187994][   T73]      netdev_get_by_index+0x5e/0x80
[ 3543.187994][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3543.187994][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3543.187994][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3543.187994][   T73]      ipv6_add_addr+0x411/0x2000
[ 3543.187994][   T73]      inet6_addr_add+0x30e/0xa40
[ 3543.187994][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3543.187994][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3543.187994][   T73]      netlink_rcv_skb+0x130/0x360
[ 3543.187994][   T73]      netlink_unicast+0x449/0x710
[ 3543.187994][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3543.187994][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3543.187994][   T73]      ___sys_sendmsg+0xee/0x170
[ 3543.187994][   T73]      __sys_sendmsg+0xcd/0x170
[ 3543.187994][   T73]      do_syscall_64+0xc6/0x1e0
[ 3543.187994][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3543.187994][   T73] 
[ 3543.190262][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3543.190262][   T73]      netdev_get_by_index+0x5e/0x80
[ 3543.190262][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3543.190262][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3543.190262][   T73]      ip6_route_add+0x1c/0x140
[ 3543.190262][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3543.190262][   T73]      addrconf_add_dev+0xe2/0x170
[ 3543.190262][   T73]      inet6_addr_add+0x12f/0xa40
[ 3543.190262][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3543.190262][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3543.190262][   T73]      netlink_rcv_skb+0x130/0x360
[ 3543.190262][   T73]      netlink_unicast+0x449/0x710
[ 3543.190262][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3543.190262][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3543.190262][   T73]      ___sys_sendmsg+0xee/0x170
[ 3543.190262][   T73]      __sys_sendmsg+0xcd/0x170
[ 3543.190262][   T73]      do_syscall_64+0xc6/0x1e0
[ 3543.190262][   T73] 
[ 3543.192491][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3543.192491][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3543.192491][   T73]      ipv6_find_idev+0x102/0x170
[ 3543.192491][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3543.192491][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3543.192491][   T73]      netlink_rcv_skb+0x130/0x360
[ 3543.192491][   T73]      netlink_unicast+0x449/0x710
[ 3543.192491][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3543.192491][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3543.192491][   T73]      ___sys_sendmsg+0xee/0x170
[ 3543.192491][   T73]      __sys_sendmsg+0xcd/0x170
[ 3543.192491][   T73]      do_syscall_64+0xc6/0x1e0
[ 3543.192491][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3543.192491][   T73] 
[ 3543.194284][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3543.194284][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3543.194284][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3543.194284][   T73]      ipv6_find_idev+0x102/0x170
[ 3543.194284][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3543.194284][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3543.194284][   T73]      netlink_rcv_skb+0x130/0x360
[ 3543.194284][   T73]      netlink_unicast+0x449/0x710
[ 3543.194284][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3543.194284][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3543.194284][   T73]      ___sys_sendmsg+0xee/0x170
[ 3543.194284][   T73]      __sys_sendmsg+0xcd/0x170
[ 3543.194284][   T73]      do_syscall_64+0xc6/0x1e0
[ 3543.194284][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3543.194284][   T73] 
[ 3553.431805][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3553.432327][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3553.432327][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3553.432327][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3553.432327][   T73]      fib6_nh_init+0xa22/0x1580
[ 3553.432327][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3553.432327][   T73]      ip6_route_add+0x1c/0x140
[ 3553.432327][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3553.432327][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3553.432327][   T73]      netlink_rcv_skb+0x130/0x360
[ 3553.432327][   T73]      netlink_unicast+0x449/0x710
[ 3553.432327][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3553.432327][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3553.432327][   T73]      ___sys_sendmsg+0xee/0x170
[ 3553.432327][   T73]      __sys_sendmsg+0xcd/0x170
[ 3553.432327][   T73]      do_syscall_64+0xc6/0x1e0
[ 3553.432327][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3553.432327][   T73] 
[ 3553.434285][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3553.434285][   T73]      dst_init+0x84/0x4a0
[ 3553.434285][   T73]      dst_alloc+0x97/0x150
[ 3553.434285][   T73]      ip6_dst_alloc+0x23/0x90
[ 3553.434285][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3553.434285][   T73]      ip6_pol_route+0x56f/0x840
[ 3553.434285][   T73]      fib6_rule_lookup+0x456/0x630
[ 3553.434285][   T73]      ip6_route_input+0x59c/0xa50
[ 3553.434285][   T73]      ipv6_rcv+0x397/0x810
[ 3553.434285][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3553.434285][   T73]      process_backlog+0x101/0x620
[ 3553.434285][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3553.434285][   T73]      net_rx_action+0x495/0xbe0
[ 3553.434285][   T73]      __do_softirq+0x1b5/0x7f6
[ 3553.434285][   T73] 
[ 3553.436502][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3553.436502][   T73]      netdev_get_by_index+0x5e/0x80
[ 3553.436502][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3553.436502][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3553.436502][   T73]      ip6_route_add+0x1c/0x140
[ 3553.436502][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3553.436502][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3553.436502][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3553.436502][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3553.436502][   T73]      netlink_rcv_skb+0x130/0x360
[ 3553.436502][   T73]      netlink_unicast+0x449/0x710
[ 3553.436502][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3553.436502][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3553.436502][   T73]      ___sys_sendmsg+0xee/0x170
[ 3553.436502][   T73]      __sys_sendmsg+0xcd/0x170
[ 3553.436502][   T73]      do_syscall_64+0xc6/0x1e0
[ 3553.436502][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3553.436502][   T73] 
[ 3553.438537][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3553.438537][   T73]      netdev_get_by_index+0x5e/0x80
[ 3553.438537][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3553.438537][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3553.438537][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3553.438537][   T73]      ipv6_add_addr+0x411/0x2000
[ 3553.438537][   T73]      inet6_addr_add+0x30e/0xa40
[ 3553.438537][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3553.438537][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3553.438537][   T73]      netlink_rcv_skb+0x130/0x360
[ 3553.438537][   T73]      netlink_unicast+0x449/0x710
[ 3553.438537][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3553.438537][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3553.438537][   T73]      ___sys_sendmsg+0xee/0x170
[ 3553.438537][   T73]      __sys_sendmsg+0xcd/0x170
[ 3553.438537][   T73]      do_syscall_64+0xc6/0x1e0
[ 3553.438537][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3553.438537][   T73] 
[ 3553.440550][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3553.440550][   T73]      netdev_get_by_index+0x5e/0x80
[ 3553.440550][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3553.440550][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3553.440550][   T73]      ip6_route_add+0x1c/0x140
[ 3553.440550][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3553.440550][   T73]      addrconf_add_dev+0xe2/0x170
[ 3553.440550][   T73]      inet6_addr_add+0x12f/0xa40
[ 3553.440550][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3553.440550][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3553.440550][   T73]      netlink_rcv_skb+0x130/0x360
[ 3553.440550][   T73]      netlink_unicast+0x449/0x710
[ 3553.440550][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3553.440550][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3553.440550][   T73]      ___sys_sendmsg+0xee/0x170
[ 3553.440550][   T73]      __sys_sendmsg+0xcd/0x170
[ 3553.440550][   T73]      do_syscall_64+0xc6/0x1e0
[ 3553.440550][   T73] 
[ 3553.442538][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3553.442538][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3553.442538][   T73]      ipv6_find_idev+0x102/0x170
[ 3553.442538][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3553.442538][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3553.442538][   T73]      netlink_rcv_skb+0x130/0x360
[ 3553.442538][   T73]      netlink_unicast+0x449/0x710
[ 3553.442538][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3553.442538][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3553.442538][   T73]      ___sys_sendmsg+0xee/0x170
[ 3553.442538][   T73]      __sys_sendmsg+0xcd/0x170
[ 3553.442538][   T73]      do_syscall_64+0xc6/0x1e0
[ 3553.442538][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3553.442538][   T73] 
[ 3553.444092][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3553.444092][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3553.444092][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3553.444092][   T73]      ipv6_find_idev+0x102/0x170
[ 3553.444092][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3553.444092][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3553.444092][   T73]      netlink_rcv_skb+0x130/0x360
[ 3553.444092][   T73]      netlink_unicast+0x449/0x710
[ 3553.444092][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3553.444092][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3553.444092][   T73]      ___sys_sendmsg+0xee/0x170
[ 3553.444092][   T73]      __sys_sendmsg+0xcd/0x170
[ 3553.444092][   T73]      do_syscall_64+0xc6/0x1e0
[ 3553.444092][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3553.444092][   T73] 
[ 3553.445810][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3553.446090][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3553.446090][   T73]      netdev_get_by_index+0x5e/0x80
[ 3553.446090][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3553.446090][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3553.446090][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3553.446090][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3553.446090][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3553.446090][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3553.446090][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3553.446090][   T73]      addrconf_dad_begin+0x310/0x670
[ 3553.446090][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3553.446090][   T73]      process_one_work+0x84d/0x18a0
[ 3553.446090][   T73]      worker_thread+0x587/0xd30
[ 3553.446090][   T73]      kthread+0x28a/0x350
[ 3553.446090][   T73]      ret_from_fork+0x31/0x70
[ 3553.446090][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3553.446090][   T73] 
[ 3553.448043][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3553.448043][   T73]      netdev_get_by_index+0x5e/0x80
[ 3553.448043][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3553.448043][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3553.448043][   T73]      ip6_route_add+0x1c/0x140
[ 3553.448043][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3553.448043][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3553.448043][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3553.448043][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3553.448043][   T73]      netlink_rcv_skb+0x130/0x360
[ 3553.448043][   T73]      netlink_unicast+0x449/0x710
[ 3553.448043][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3553.448043][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3553.448043][   T73]      ___sys_sendmsg+0xee/0x170
[ 3553.448043][   T73]      __sys_sendmsg+0xcd/0x170
[ 3553.448043][   T73]      do_syscall_64+0xc6/0x1e0
[ 3553.448043][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3553.448043][   T73] 
[ 3553.450086][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3553.450086][   T73]      netdev_get_by_index+0x5e/0x80
[ 3553.450086][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3553.450086][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3553.450086][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3553.450086][   T73]      ipv6_add_addr+0x411/0x2000
[ 3553.450086][   T73]      inet6_addr_add+0x30e/0xa40
[ 3553.450086][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3553.450086][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3553.450086][   T73]      netlink_rcv_skb+0x130/0x360
[ 3553.450086][   T73]      netlink_unicast+0x449/0x710
[ 3553.450086][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3553.450086][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3553.450086][   T73]      ___sys_sendmsg+0xee/0x170
[ 3553.450086][   T73]      __sys_sendmsg+0xcd/0x170
[ 3553.450086][   T73]      do_syscall_64+0xc6/0x1e0
[ 3553.450086][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3553.450086][   T73] 
[ 3553.452108][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3553.452108][   T73]      netdev_get_by_index+0x5e/0x80
[ 3553.452108][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3553.452108][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3553.452108][   T73]      ip6_route_add+0x1c/0x140
[ 3553.452108][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3553.452108][   T73]      addrconf_add_dev+0xe2/0x170
[ 3553.452108][   T73]      inet6_addr_add+0x12f/0xa40
[ 3553.452108][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3553.452108][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3553.452108][   T73]      netlink_rcv_skb+0x130/0x360
[ 3553.452108][   T73]      netlink_unicast+0x449/0x710
[ 3553.452108][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3553.452108][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3553.452108][   T73]      ___sys_sendmsg+0xee/0x170
[ 3553.452108][   T73]      __sys_sendmsg+0xcd/0x170
[ 3553.452108][   T73]      do_syscall_64+0xc6/0x1e0
[ 3553.452108][   T73] 
[ 3553.454068][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3553.454068][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3553.454068][   T73]      ipv6_find_idev+0x102/0x170
[ 3553.454068][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3553.454068][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3553.454068][   T73]      netlink_rcv_skb+0x130/0x360
[ 3553.454068][   T73]      netlink_unicast+0x449/0x710
[ 3553.454068][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3553.454068][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3553.454068][   T73]      ___sys_sendmsg+0xee/0x170
[ 3553.454068][   T73]      __sys_sendmsg+0xcd/0x170
[ 3553.454068][   T73]      do_syscall_64+0xc6/0x1e0
[ 3553.454068][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3553.454068][   T73] 
[ 3553.455619][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3553.455619][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3553.455619][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3553.455619][   T73]      ipv6_find_idev+0x102/0x170
[ 3553.455619][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3553.455619][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3553.455619][   T73]      netlink_rcv_skb+0x130/0x360
[ 3553.455619][   T73]      netlink_unicast+0x449/0x710
[ 3553.455619][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3553.455619][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3553.455619][   T73]      ___sys_sendmsg+0xee/0x170
[ 3553.455619][   T73]      __sys_sendmsg+0xcd/0x170
[ 3553.455619][   T73]      do_syscall_64+0xc6/0x1e0
[ 3553.455619][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3553.455619][   T73] 
[ 3553.457320][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3553.457584][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3553.457584][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3553.457584][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3553.457584][   T73]      fib6_nh_init+0xa22/0x1580
[ 3553.457584][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3553.457584][   T73]      ip6_route_add+0x1c/0x140
[ 3553.457584][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3553.457584][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3553.457584][   T73]      netlink_rcv_skb+0x130/0x360
[ 3553.457584][   T73]      netlink_unicast+0x449/0x710
[ 3553.457584][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3553.457584][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3553.457584][   T73]      ___sys_sendmsg+0xee/0x170
[ 3553.457584][   T73]      __sys_sendmsg+0xcd/0x170
[ 3553.457584][   T73]      do_syscall_64+0xc6/0x1e0
[ 3553.457584][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3553.457584][   T73] 
[ 3553.461792][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3553.461792][   T73]      dst_init+0x84/0x4a0
[ 3553.461792][   T73]      dst_alloc+0x97/0x150
[ 3553.461792][   T73]      ip6_dst_alloc+0x23/0x90
[ 3553.461792][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3553.461792][   T73]      ip6_pol_route+0x56f/0x840
[ 3553.461792][   T73]      fib6_rule_lookup+0x456/0x630
[ 3553.461792][   T73]      ip6_route_input+0x59c/0xa50
[ 3553.461792][   T73]      ipv6_rcv+0x397/0x810
[ 3553.461792][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3553.461792][   T73]      process_backlog+0x101/0x620
[ 3553.461792][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3553.461792][   T73]      net_rx_action+0x495/0xbe0
[ 3553.461792][   T73]      __do_softirq+0x1b5/0x7f6
[ 3553.461792][   T73] 
[ 3553.463595][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3553.463595][   T73]      netdev_get_by_index+0x5e/0x80
[ 3553.463595][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3553.463595][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3553.463595][   T73]      ip6_route_add+0x1c/0x140
[ 3553.463595][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3553.463595][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3553.463595][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3553.463595][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3553.463595][   T73]      netlink_rcv_skb+0x130/0x360
[ 3553.463595][   T73]      netlink_unicast+0x449/0x710
[ 3553.463595][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3553.463595][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3553.463595][   T73]      ___sys_sendmsg+0xee/0x170
[ 3553.463595][   T73]      __sys_sendmsg+0xcd/0x170
[ 3553.463595][   T73]      do_syscall_64+0xc6/0x1e0
[ 3553.463595][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3553.463595][   T73] 
[ 3553.465724][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3553.465724][   T73]      netdev_get_by_index+0x5e/0x80
[ 3553.465724][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3553.465724][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3553.465724][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3553.465724][   T73]      ipv6_add_addr+0x411/0x2000
[ 3553.465724][   T73]      inet6_addr_add+0x30e/0xa40
[ 3553.465724][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3553.465724][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3553.465724][   T73]      netlink_rcv_skb+0x130/0x360
[ 3553.465724][   T73]      netlink_unicast+0x449/0x710
[ 3553.465724][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3553.465724][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3553.465724][   T73]      ___sys_sendmsg+0xee/0x170
[ 3553.465724][   T73]      __sys_sendmsg+0xcd/0x170
[ 3553.465724][   T73]      do_syscall_64+0xc6/0x1e0
[ 3553.465724][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3553.465724][   T73] 
[ 3553.467862][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3553.467862][   T73]      netdev_get_by_index+0x5e/0x80
[ 3553.467862][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3553.467862][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3553.467862][   T73]      ip6_route_add+0x1c/0x140
[ 3553.467862][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3553.467862][   T73]      addrconf_add_dev+0xe2/0x170
[ 3553.467862][   T73]      inet6_addr_add+0x12f/0xa40
[ 3553.467862][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3553.467862][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3553.467862][   T73]      netlink_rcv_skb+0x130/0x360
[ 3553.467862][   T73]      netlink_unicast+0x449/0x710
[ 3553.467862][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3553.467862][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3553.467862][   T73]      ___sys_sendmsg+0xee/0x170
[ 3553.467862][   T73]      __sys_sendmsg+0xcd/0x170
[ 3553.467862][   T73]      do_syscall_64+0xc6/0x1e0
[ 3553.467862][   T73] 
[ 3553.469923][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3553.469923][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3553.469923][   T73]      ipv6_find_idev+0x102/0x170
[ 3553.469923][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3553.469923][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3553.469923][   T73]      netlink_rcv_skb+0x130/0x360
[ 3553.469923][   T73]      netlink_unicast+0x449/0x710
[ 3553.469923][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3553.469923][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3553.469923][   T73]      ___sys_sendmsg+0xee/0x170
[ 3553.469923][   T73]      __sys_sendmsg+0xcd/0x170
[ 3553.469923][   T73]      do_syscall_64+0xc6/0x1e0
[ 3553.469923][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3553.469923][   T73] 
[ 3553.471671][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3553.471671][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3553.471671][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3553.471671][   T73]      ipv6_find_idev+0x102/0x170
[ 3553.471671][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3553.471671][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3553.471671][   T73]      netlink_rcv_skb+0x130/0x360
[ 3553.471671][   T73]      netlink_unicast+0x449/0x710
[ 3553.471671][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3553.471671][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3553.471671][   T73]      ___sys_sendmsg+0xee/0x170
[ 3553.471671][   T73]      __sys_sendmsg+0xcd/0x170
[ 3553.471671][   T73]      do_syscall_64+0xc6/0x1e0
[ 3553.471671][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3553.471671][   T73] 
[ 3553.473481][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3553.474216][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3553.474216][   T73]      netdev_get_by_index+0x5e/0x80
[ 3553.474216][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3553.474216][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3553.474216][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3553.474216][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3553.474216][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3553.474216][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3553.474216][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3553.474216][   T73]      addrconf_dad_begin+0x310/0x670
[ 3553.474216][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3553.474216][   T73]      process_one_work+0x84d/0x18a0
[ 3553.474216][   T73]      worker_thread+0x587/0xd30
[ 3553.474216][   T73]      kthread+0x28a/0x350
[ 3553.474216][   T73]      ret_from_fork+0x31/0x70
[ 3553.474216][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3553.474216][   T73] 
[ 3553.476134][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3553.476134][   T73]      netdev_get_by_index+0x5e/0x80
[ 3553.476134][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3553.476134][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3553.476134][   T73]      ip6_route_add+0x1c/0x140
[ 3553.476134][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3553.476134][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3553.476134][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3553.476134][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3553.476134][   T73]      netlink_rcv_skb+0x130/0x360
[ 3553.476134][   T73]      netlink_unicast+0x449/0x710
[ 3553.476134][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3553.476134][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3553.476134][   T73]      ___sys_sendmsg+0xee/0x170
[ 3553.476134][   T73]      __sys_sendmsg+0xcd/0x170
[ 3553.476134][   T73]      do_syscall_64+0xc6/0x1e0
[ 3553.476134][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3553.476134][   T73] 
[ 3553.478241][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3553.478241][   T73]      netdev_get_by_index+0x5e/0x80
[ 3553.478241][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3553.478241][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3553.478241][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3553.478241][   T73]      ipv6_add_addr+0x411/0x2000
[ 3553.478241][   T73]      inet6_addr_add+0x30e/0xa40
[ 3553.478241][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3553.478241][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3553.478241][   T73]      netlink_rcv_skb+0x130/0x360
[ 3553.478241][   T73]      netlink_unicast+0x449/0x710
[ 3553.478241][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3553.478241][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3553.478241][   T73]      ___sys_sendmsg+0xee/0x170
[ 3553.478241][   T73]      __sys_sendmsg+0xcd/0x170
[ 3553.478241][   T73]      do_syscall_64+0xc6/0x1e0
[ 3553.478241][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3553.478241][   T73] 
[ 3553.480428][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3553.480428][   T73]      netdev_get_by_index+0x5e/0x80
[ 3553.480428][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3553.480428][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3553.480428][   T73]      ip6_route_add+0x1c/0x140
[ 3553.480428][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3553.480428][   T73]      addrconf_add_dev+0xe2/0x170
[ 3553.480428][   T73]      inet6_addr_add+0x12f/0xa40
[ 3553.480428][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3553.480428][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3553.480428][   T73]      netlink_rcv_skb+0x130/0x360
[ 3553.480428][   T73]      netlink_unicast+0x449/0x710
[ 3553.480428][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3553.480428][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3553.480428][   T73]      ___sys_sendmsg+0xee/0x170
[ 3553.480428][   T73]      __sys_sendmsg+0xcd/0x170
[ 3553.480428][   T73]      do_syscall_64+0xc6/0x1e0
[ 3553.480428][   T73] 
[ 3553.482653][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3553.482653][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3553.482653][   T73]      ipv6_find_idev+0x102/0x170
[ 3553.482653][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3553.482653][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3553.482653][   T73]      netlink_rcv_skb+0x130/0x360
[ 3553.482653][   T73]      netlink_unicast+0x449/0x710
[ 3553.482653][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3553.482653][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3553.482653][   T73]      ___sys_sendmsg+0xee/0x170
[ 3553.482653][   T73]      __sys_sendmsg+0xcd/0x170
[ 3553.482653][   T73]      do_syscall_64+0xc6/0x1e0
[ 3553.482653][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3553.482653][   T73] 
[ 3553.484450][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3553.484450][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3553.484450][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3553.484450][   T73]      ipv6_find_idev+0x102/0x170
[ 3553.484450][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3553.484450][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3553.484450][   T73]      netlink_rcv_skb+0x130/0x360
[ 3553.484450][   T73]      netlink_unicast+0x449/0x710
[ 3553.484450][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3553.484450][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3553.484450][   T73]      ___sys_sendmsg+0xee/0x170
[ 3553.484450][   T73]      __sys_sendmsg+0xcd/0x170
[ 3553.484450][   T73]      do_syscall_64+0xc6/0x1e0
[ 3553.484450][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3553.484450][   T73] 
[ 3563.727774][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3563.728351][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3563.728351][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3563.728351][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3563.728351][   T73]      fib6_nh_init+0xa22/0x1580
[ 3563.728351][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3563.728351][   T73]      ip6_route_add+0x1c/0x140
[ 3563.728351][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3563.728351][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3563.728351][   T73]      netlink_rcv_skb+0x130/0x360
[ 3563.728351][   T73]      netlink_unicast+0x449/0x710
[ 3563.728351][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3563.728351][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3563.728351][   T73]      ___sys_sendmsg+0xee/0x170
[ 3563.728351][   T73]      __sys_sendmsg+0xcd/0x170
[ 3563.728351][   T73]      do_syscall_64+0xc6/0x1e0
[ 3563.728351][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3563.728351][   T73] 
[ 3563.730285][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3563.730285][   T73]      dst_init+0x84/0x4a0
[ 3563.730285][   T73]      dst_alloc+0x97/0x150
[ 3563.730285][   T73]      ip6_dst_alloc+0x23/0x90
[ 3563.730285][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3563.730285][   T73]      ip6_pol_route+0x56f/0x840
[ 3563.730285][   T73]      fib6_rule_lookup+0x456/0x630
[ 3563.730285][   T73]      ip6_route_input+0x59c/0xa50
[ 3563.730285][   T73]      ipv6_rcv+0x397/0x810
[ 3563.730285][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3563.730285][   T73]      process_backlog+0x101/0x620
[ 3563.730285][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3563.730285][   T73]      net_rx_action+0x495/0xbe0
[ 3563.730285][   T73]      __do_softirq+0x1b5/0x7f6
[ 3563.730285][   T73] 
[ 3563.731957][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3563.731957][   T73]      netdev_get_by_index+0x5e/0x80
[ 3563.731957][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3563.731957][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3563.731957][   T73]      ip6_route_add+0x1c/0x140
[ 3563.731957][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3563.731957][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3563.731957][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3563.731957][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3563.731957][   T73]      netlink_rcv_skb+0x130/0x360
[ 3563.731957][   T73]      netlink_unicast+0x449/0x710
[ 3563.731957][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3563.731957][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3563.731957][   T73]      ___sys_sendmsg+0xee/0x170
[ 3563.731957][   T73]      __sys_sendmsg+0xcd/0x170
[ 3563.731957][   T73]      do_syscall_64+0xc6/0x1e0
[ 3563.731957][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3563.731957][   T73] 
[ 3563.733994][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3563.733994][   T73]      netdev_get_by_index+0x5e/0x80
[ 3563.733994][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3563.733994][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3563.733994][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3563.733994][   T73]      ipv6_add_addr+0x411/0x2000
[ 3563.733994][   T73]      inet6_addr_add+0x30e/0xa40
[ 3563.733994][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3563.733994][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3563.733994][   T73]      netlink_rcv_skb+0x130/0x360
[ 3563.733994][   T73]      netlink_unicast+0x449/0x710
[ 3563.733994][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3563.733994][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3563.733994][   T73]      ___sys_sendmsg+0xee/0x170
[ 3563.733994][   T73]      __sys_sendmsg+0xcd/0x170
[ 3563.733994][   T73]      do_syscall_64+0xc6/0x1e0
[ 3563.733994][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3563.733994][   T73] 
[ 3563.736018][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3563.736018][   T73]      netdev_get_by_index+0x5e/0x80
[ 3563.736018][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3563.736018][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3563.736018][   T73]      ip6_route_add+0x1c/0x140
[ 3563.736018][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3563.736018][   T73]      addrconf_add_dev+0xe2/0x170
[ 3563.736018][   T73]      inet6_addr_add+0x12f/0xa40
[ 3563.736018][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3563.736018][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3563.736018][   T73]      netlink_rcv_skb+0x130/0x360
[ 3563.736018][   T73]      netlink_unicast+0x449/0x710
[ 3563.736018][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3563.736018][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3563.736018][   T73]      ___sys_sendmsg+0xee/0x170
[ 3563.736018][   T73]      __sys_sendmsg+0xcd/0x170
[ 3563.736018][   T73]      do_syscall_64+0xc6/0x1e0
[ 3563.736018][   T73] 
[ 3563.738038][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3563.738038][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3563.738038][   T73]      ipv6_find_idev+0x102/0x170
[ 3563.738038][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3563.738038][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3563.738038][   T73]      netlink_rcv_skb+0x130/0x360
[ 3563.738038][   T73]      netlink_unicast+0x449/0x710
[ 3563.738038][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3563.738038][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3563.738038][   T73]      ___sys_sendmsg+0xee/0x170
[ 3563.738038][   T73]      __sys_sendmsg+0xcd/0x170
[ 3563.738038][   T73]      do_syscall_64+0xc6/0x1e0
[ 3563.738038][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3563.738038][   T73] 
[ 3563.739627][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3563.739627][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3563.739627][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3563.739627][   T73]      ipv6_find_idev+0x102/0x170
[ 3563.739627][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3563.739627][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3563.739627][   T73]      netlink_rcv_skb+0x130/0x360
[ 3563.739627][   T73]      netlink_unicast+0x449/0x710
[ 3563.739627][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3563.739627][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3563.739627][   T73]      ___sys_sendmsg+0xee/0x170
[ 3563.739627][   T73]      __sys_sendmsg+0xcd/0x170
[ 3563.739627][   T73]      do_syscall_64+0xc6/0x1e0
[ 3563.739627][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3563.739627][   T73] 
[ 3563.741362][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3563.741652][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3563.741652][   T73]      netdev_get_by_index+0x5e/0x80
[ 3563.741652][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3563.741652][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3563.741652][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3563.741652][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3563.741652][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3563.741652][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3563.741652][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3563.741652][   T73]      addrconf_dad_begin+0x310/0x670
[ 3563.741652][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3563.741652][   T73]      process_one_work+0x84d/0x18a0
[ 3563.741652][   T73]      worker_thread+0x587/0xd30
[ 3563.741652][   T73]      kthread+0x28a/0x350
[ 3563.741652][   T73]      ret_from_fork+0x31/0x70
[ 3563.741652][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3563.741652][   T73] 
[ 3563.743606][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3563.743606][   T73]      netdev_get_by_index+0x5e/0x80
[ 3563.743606][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3563.743606][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3563.743606][   T73]      ip6_route_add+0x1c/0x140
[ 3563.743606][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3563.743606][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3563.743606][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3563.743606][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3563.743606][   T73]      netlink_rcv_skb+0x130/0x360
[ 3563.743606][   T73]      netlink_unicast+0x449/0x710
[ 3563.743606][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3563.743606][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3563.743606][   T73]      ___sys_sendmsg+0xee/0x170
[ 3563.743606][   T73]      __sys_sendmsg+0xcd/0x170
[ 3563.743606][   T73]      do_syscall_64+0xc6/0x1e0
[ 3563.743606][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3563.743606][   T73] 
[ 3563.745651][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3563.745651][   T73]      netdev_get_by_index+0x5e/0x80
[ 3563.745651][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3563.745651][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3563.745651][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3563.745651][   T73]      ipv6_add_addr+0x411/0x2000
[ 3563.745651][   T73]      inet6_addr_add+0x30e/0xa40
[ 3563.745651][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3563.745651][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3563.745651][   T73]      netlink_rcv_skb+0x130/0x360
[ 3563.745651][   T73]      netlink_unicast+0x449/0x710
[ 3563.745651][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3563.745651][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3563.745651][   T73]      ___sys_sendmsg+0xee/0x170
[ 3563.745651][   T73]      __sys_sendmsg+0xcd/0x170
[ 3563.745651][   T73]      do_syscall_64+0xc6/0x1e0
[ 3563.745651][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3563.745651][   T73] 
[ 3563.747739][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3563.747739][   T73]      netdev_get_by_index+0x5e/0x80
[ 3563.747739][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3563.747739][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3563.747739][   T73]      ip6_route_add+0x1c/0x140
[ 3563.747739][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3563.747739][   T73]      addrconf_add_dev+0xe2/0x170
[ 3563.747739][   T73]      inet6_addr_add+0x12f/0xa40
[ 3563.747739][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3563.747739][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3563.747739][   T73]      netlink_rcv_skb+0x130/0x360
[ 3563.747739][   T73]      netlink_unicast+0x449/0x710
[ 3563.747739][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3563.747739][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3563.747739][   T73]      ___sys_sendmsg+0xee/0x170
[ 3563.747739][   T73]      __sys_sendmsg+0xcd/0x170
[ 3563.747739][   T73]      do_syscall_64+0xc6/0x1e0
[ 3563.747739][   T73] 
[ 3563.749783][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3563.749783][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3563.749783][   T73]      ipv6_find_idev+0x102/0x170
[ 3563.749783][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3563.749783][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3563.749783][   T73]      netlink_rcv_skb+0x130/0x360
[ 3563.749783][   T73]      netlink_unicast+0x449/0x710
[ 3563.749783][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3563.749783][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3563.749783][   T73]      ___sys_sendmsg+0xee/0x170
[ 3563.749783][   T73]      __sys_sendmsg+0xcd/0x170
[ 3563.749783][   T73]      do_syscall_64+0xc6/0x1e0
[ 3563.749783][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3563.749783][   T73] 
[ 3563.751532][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3563.751532][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3563.751532][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3563.751532][   T73]      ipv6_find_idev+0x102/0x170
[ 3563.751532][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3563.751532][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3563.751532][   T73]      netlink_rcv_skb+0x130/0x360
[ 3563.751532][   T73]      netlink_unicast+0x449/0x710
[ 3563.751532][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3563.751532][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3563.751532][   T73]      ___sys_sendmsg+0xee/0x170
[ 3563.751532][   T73]      __sys_sendmsg+0xcd/0x170
[ 3563.751532][   T73]      do_syscall_64+0xc6/0x1e0
[ 3563.751532][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3563.751532][   T73] 
[ 3563.753431][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3563.753735][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3563.753735][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3563.753735][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3563.753735][   T73]      fib6_nh_init+0xa22/0x1580
[ 3563.753735][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3563.753735][   T73]      ip6_route_add+0x1c/0x140
[ 3563.753735][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3563.753735][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3563.753735][   T73]      netlink_rcv_skb+0x130/0x360
[ 3563.753735][   T73]      netlink_unicast+0x449/0x710
[ 3563.753735][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3563.753735][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3563.753735][   T73]      ___sys_sendmsg+0xee/0x170
[ 3563.753735][   T73]      __sys_sendmsg+0xcd/0x170
[ 3563.753735][   T73]      do_syscall_64+0xc6/0x1e0
[ 3563.753735][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3563.753735][   T73] 
[ 3563.756031][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3563.756031][   T73]      dst_init+0x84/0x4a0
[ 3563.756031][   T73]      dst_alloc+0x97/0x150
[ 3563.756031][   T73]      ip6_dst_alloc+0x23/0x90
[ 3563.756031][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3563.756031][   T73]      ip6_pol_route+0x56f/0x840
[ 3563.756031][   T73]      fib6_rule_lookup+0x456/0x630
[ 3563.756031][   T73]      ip6_route_input+0x59c/0xa50
[ 3563.756031][   T73]      ipv6_rcv+0x397/0x810
[ 3563.756031][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3563.756031][   T73]      process_backlog+0x101/0x620
[ 3563.756031][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3563.756031][   T73]      net_rx_action+0x495/0xbe0
[ 3563.756031][   T73]      __do_softirq+0x1b5/0x7f6
[ 3563.756031][   T73] 
[ 3563.758031][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3563.758031][   T73]      netdev_get_by_index+0x5e/0x80
[ 3563.758031][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3563.758031][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3563.758031][   T73]      ip6_route_add+0x1c/0x140
[ 3563.758031][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3563.758031][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3563.758031][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3563.758031][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3563.758031][   T73]      netlink_rcv_skb+0x130/0x360
[ 3563.758031][   T73]      netlink_unicast+0x449/0x710
[ 3563.758031][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3563.758031][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3563.758031][   T73]      ___sys_sendmsg+0xee/0x170
[ 3563.758031][   T73]      __sys_sendmsg+0xcd/0x170
[ 3563.758031][   T73]      do_syscall_64+0xc6/0x1e0
[ 3563.758031][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3563.758031][   T73] 
[ 3563.760518][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3563.760518][   T73]      netdev_get_by_index+0x5e/0x80
[ 3563.760518][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3563.760518][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3563.760518][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3563.760518][   T73]      ipv6_add_addr+0x411/0x2000
[ 3563.760518][   T73]      inet6_addr_add+0x30e/0xa40
[ 3563.760518][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3563.760518][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3563.760518][   T73]      netlink_rcv_skb+0x130/0x360
[ 3563.760518][   T73]      netlink_unicast+0x449/0x710
[ 3563.760518][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3563.760518][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3563.760518][   T73]      ___sys_sendmsg+0xee/0x170
[ 3563.760518][   T73]      __sys_sendmsg+0xcd/0x170
[ 3563.760518][   T73]      do_syscall_64+0xc6/0x1e0
[ 3563.760518][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3563.760518][   T73] 
[ 3563.763072][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3563.763072][   T73]      netdev_get_by_index+0x5e/0x80
[ 3563.763072][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3563.763072][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3563.763072][   T73]      ip6_route_add+0x1c/0x140
[ 3563.763072][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3563.763072][   T73]      addrconf_add_dev+0xe2/0x170
[ 3563.763072][   T73]      inet6_addr_add+0x12f/0xa40
[ 3563.763072][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3563.763072][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3563.763072][   T73]      netlink_rcv_skb+0x130/0x360
[ 3563.763072][   T73]      netlink_unicast+0x449/0x710
[ 3563.763072][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3563.763072][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3563.763072][   T73]      ___sys_sendmsg+0xee/0x170
[ 3563.763072][   T73]      __sys_sendmsg+0xcd/0x170
[ 3563.763072][   T73]      do_syscall_64+0xc6/0x1e0
[ 3563.763072][   T73] 
[ 3563.765471][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3563.765471][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3563.765471][   T73]      ipv6_find_idev+0x102/0x170
[ 3563.765471][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3563.765471][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3563.765471][   T73]      netlink_rcv_skb+0x130/0x360
[ 3563.765471][   T73]      netlink_unicast+0x449/0x710
[ 3563.765471][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3563.765471][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3563.765471][   T73]      ___sys_sendmsg+0xee/0x170
[ 3563.765471][   T73]      __sys_sendmsg+0xcd/0x170
[ 3563.765471][   T73]      do_syscall_64+0xc6/0x1e0
[ 3563.765471][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3563.765471][   T73] 
[ 3563.767382][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3563.767382][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3563.767382][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3563.767382][   T73]      ipv6_find_idev+0x102/0x170
[ 3563.767382][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3563.767382][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3563.767382][   T73]      netlink_rcv_skb+0x130/0x360
[ 3563.767382][   T73]      netlink_unicast+0x449/0x710
[ 3563.767382][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3563.767382][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3563.767382][   T73]      ___sys_sendmsg+0xee/0x170
[ 3563.767382][   T73]      __sys_sendmsg+0xcd/0x170
[ 3563.767382][   T73]      do_syscall_64+0xc6/0x1e0
[ 3563.767382][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3563.767382][   T73] 
[ 3563.769535][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3563.770256][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3563.770256][   T73]      netdev_get_by_index+0x5e/0x80
[ 3563.770256][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3563.770256][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3563.770256][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3563.770256][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3563.770256][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3563.770256][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3563.770256][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3563.770256][   T73]      addrconf_dad_begin+0x310/0x670
[ 3563.770256][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3563.770256][   T73]      process_one_work+0x84d/0x18a0
[ 3563.770256][   T73]      worker_thread+0x587/0xd30
[ 3563.770256][   T73]      kthread+0x28a/0x350
[ 3563.770256][   T73]      ret_from_fork+0x31/0x70
[ 3563.770256][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3563.770256][   T73] 
[ 3563.772228][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3563.772228][   T73]      netdev_get_by_index+0x5e/0x80
[ 3563.772228][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3563.772228][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3563.772228][   T73]      ip6_route_add+0x1c/0x140
[ 3563.772228][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3563.772228][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3563.772228][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3563.772228][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3563.772228][   T73]      netlink_rcv_skb+0x130/0x360
[ 3563.772228][   T73]      netlink_unicast+0x449/0x710
[ 3563.772228][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3563.772228][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3563.772228][   T73]      ___sys_sendmsg+0xee/0x170
[ 3563.772228][   T73]      __sys_sendmsg+0xcd/0x170
[ 3563.772228][   T73]      do_syscall_64+0xc6/0x1e0
[ 3563.772228][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3563.772228][   T73] 
[ 3563.774436][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3563.774436][   T73]      netdev_get_by_index+0x5e/0x80
[ 3563.774436][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3563.774436][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3563.774436][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3563.774436][   T73]      ipv6_add_addr+0x411/0x2000
[ 3563.774436][   T73]      inet6_addr_add+0x30e/0xa40
[ 3563.774436][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3563.774436][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3563.774436][   T73]      netlink_rcv_skb+0x130/0x360
[ 3563.774436][   T73]      netlink_unicast+0x449/0x710
[ 3563.774436][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3563.774436][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3563.774436][   T73]      ___sys_sendmsg+0xee/0x170
[ 3563.774436][   T73]      __sys_sendmsg+0xcd/0x170
[ 3563.774436][   T73]      do_syscall_64+0xc6/0x1e0
[ 3563.774436][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3563.774436][   T73] 
[ 3563.776842][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3563.776842][   T73]      netdev_get_by_index+0x5e/0x80
[ 3563.776842][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3563.776842][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3563.776842][   T73]      ip6_route_add+0x1c/0x140
[ 3563.776842][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3563.776842][   T73]      addrconf_add_dev+0xe2/0x170
[ 3563.776842][   T73]      inet6_addr_add+0x12f/0xa40
[ 3563.776842][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3563.776842][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3563.776842][   T73]      netlink_rcv_skb+0x130/0x360
[ 3563.776842][   T73]      netlink_unicast+0x449/0x710
[ 3563.776842][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3563.776842][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3563.776842][   T73]      ___sys_sendmsg+0xee/0x170
[ 3563.776842][   T73]      __sys_sendmsg+0xcd/0x170
[ 3563.776842][   T73]      do_syscall_64+0xc6/0x1e0
[ 3563.776842][   T73] 
[ 3563.779163][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3563.779163][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3563.779163][   T73]      ipv6_find_idev+0x102/0x170
[ 3563.779163][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3563.779163][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3563.779163][   T73]      netlink_rcv_skb+0x130/0x360
[ 3563.779163][   T73]      netlink_unicast+0x449/0x710
[ 3563.779163][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3563.779163][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3563.779163][   T73]      ___sys_sendmsg+0xee/0x170
[ 3563.779163][   T73]      __sys_sendmsg+0xcd/0x170
[ 3563.779163][   T73]      do_syscall_64+0xc6/0x1e0
[ 3563.779163][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3563.779163][   T73] 
[ 3563.780928][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3563.780928][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3563.780928][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3563.780928][   T73]      ipv6_find_idev+0x102/0x170
[ 3563.780928][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3563.780928][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3563.780928][   T73]      netlink_rcv_skb+0x130/0x360
[ 3563.780928][   T73]      netlink_unicast+0x449/0x710
[ 3563.780928][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3563.780928][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3563.780928][   T73]      ___sys_sendmsg+0xee/0x170
[ 3563.780928][   T73]      __sys_sendmsg+0xcd/0x170
[ 3563.780928][   T73]      do_syscall_64+0xc6/0x1e0
[ 3563.780928][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3563.780928][   T73] 
[ 3574.023804][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3574.024329][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3574.024329][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3574.024329][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3574.024329][   T73]      fib6_nh_init+0xa22/0x1580
[ 3574.024329][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3574.024329][   T73]      ip6_route_add+0x1c/0x140
[ 3574.024329][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3574.024329][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3574.024329][   T73]      netlink_rcv_skb+0x130/0x360
[ 3574.024329][   T73]      netlink_unicast+0x449/0x710
[ 3574.024329][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3574.024329][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3574.024329][   T73]      ___sys_sendmsg+0xee/0x170
[ 3574.024329][   T73]      __sys_sendmsg+0xcd/0x170
[ 3574.024329][   T73]      do_syscall_64+0xc6/0x1e0
[ 3574.024329][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3574.024329][   T73] 
[ 3574.026258][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3574.026258][   T73]      dst_init+0x84/0x4a0
[ 3574.026258][   T73]      dst_alloc+0x97/0x150
[ 3574.026258][   T73]      ip6_dst_alloc+0x23/0x90
[ 3574.026258][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3574.026258][   T73]      ip6_pol_route+0x56f/0x840
[ 3574.026258][   T73]      fib6_rule_lookup+0x456/0x630
[ 3574.026258][   T73]      ip6_route_input+0x59c/0xa50
[ 3574.026258][   T73]      ipv6_rcv+0x397/0x810
[ 3574.026258][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3574.026258][   T73]      process_backlog+0x101/0x620
[ 3574.026258][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3574.026258][   T73]      net_rx_action+0x495/0xbe0
[ 3574.026258][   T73]      __do_softirq+0x1b5/0x7f6
[ 3574.026258][   T73] 
[ 3574.027902][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3574.027902][   T73]      netdev_get_by_index+0x5e/0x80
[ 3574.027902][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3574.027902][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3574.027902][   T73]      ip6_route_add+0x1c/0x140
[ 3574.027902][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3574.027902][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3574.027902][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3574.027902][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3574.027902][   T73]      netlink_rcv_skb+0x130/0x360
[ 3574.027902][   T73]      netlink_unicast+0x449/0x710
[ 3574.027902][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3574.027902][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3574.027902][   T73]      ___sys_sendmsg+0xee/0x170
[ 3574.027902][   T73]      __sys_sendmsg+0xcd/0x170
[ 3574.027902][   T73]      do_syscall_64+0xc6/0x1e0
[ 3574.027902][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3574.027902][   T73] 
[ 3574.029949][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3574.029949][   T73]      netdev_get_by_index+0x5e/0x80
[ 3574.029949][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3574.029949][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3574.029949][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3574.029949][   T73]      ipv6_add_addr+0x411/0x2000
[ 3574.029949][   T73]      inet6_addr_add+0x30e/0xa40
[ 3574.029949][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3574.029949][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3574.029949][   T73]      netlink_rcv_skb+0x130/0x360
[ 3574.029949][   T73]      netlink_unicast+0x449/0x710
[ 3574.029949][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3574.029949][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3574.029949][   T73]      ___sys_sendmsg+0xee/0x170
[ 3574.029949][   T73]      __sys_sendmsg+0xcd/0x170
[ 3574.029949][   T73]      do_syscall_64+0xc6/0x1e0
[ 3574.029949][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3574.029949][   T73] 
[ 3574.031967][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3574.031967][   T73]      netdev_get_by_index+0x5e/0x80
[ 3574.031967][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3574.031967][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3574.031967][   T73]      ip6_route_add+0x1c/0x140
[ 3574.031967][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3574.031967][   T73]      addrconf_add_dev+0xe2/0x170
[ 3574.031967][   T73]      inet6_addr_add+0x12f/0xa40
[ 3574.031967][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3574.031967][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3574.031967][   T73]      netlink_rcv_skb+0x130/0x360
[ 3574.031967][   T73]      netlink_unicast+0x449/0x710
[ 3574.031967][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3574.031967][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3574.031967][   T73]      ___sys_sendmsg+0xee/0x170
[ 3574.031967][   T73]      __sys_sendmsg+0xcd/0x170
[ 3574.031967][   T73]      do_syscall_64+0xc6/0x1e0
[ 3574.031967][   T73] 
[ 3574.033944][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3574.033944][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3574.033944][   T73]      ipv6_find_idev+0x102/0x170
[ 3574.033944][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3574.033944][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3574.033944][   T73]      netlink_rcv_skb+0x130/0x360
[ 3574.033944][   T73]      netlink_unicast+0x449/0x710
[ 3574.033944][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3574.033944][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3574.033944][   T73]      ___sys_sendmsg+0xee/0x170
[ 3574.033944][   T73]      __sys_sendmsg+0xcd/0x170
[ 3574.033944][   T73]      do_syscall_64+0xc6/0x1e0
[ 3574.033944][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3574.033944][   T73] 
[ 3574.035508][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3574.035508][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3574.035508][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3574.035508][   T73]      ipv6_find_idev+0x102/0x170
[ 3574.035508][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3574.035508][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3574.035508][   T73]      netlink_rcv_skb+0x130/0x360
[ 3574.035508][   T73]      netlink_unicast+0x449/0x710
[ 3574.035508][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3574.035508][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3574.035508][   T73]      ___sys_sendmsg+0xee/0x170
[ 3574.035508][   T73]      __sys_sendmsg+0xcd/0x170
[ 3574.035508][   T73]      do_syscall_64+0xc6/0x1e0
[ 3574.035508][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3574.035508][   T73] 
[ 3574.037309][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3574.037602][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3574.037602][   T73]      netdev_get_by_index+0x5e/0x80
[ 3574.037602][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3574.037602][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3574.037602][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3574.037602][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3574.037602][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3574.037602][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3574.037602][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3574.037602][   T73]      addrconf_dad_begin+0x310/0x670
[ 3574.037602][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3574.037602][   T73]      process_one_work+0x84d/0x18a0
[ 3574.037602][   T73]      worker_thread+0x587/0xd30
[ 3574.037602][   T73]      kthread+0x28a/0x350
[ 3574.037602][   T73]      ret_from_fork+0x31/0x70
[ 3574.037602][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3574.037602][   T73] 
[ 3574.039530][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3574.039530][   T73]      netdev_get_by_index+0x5e/0x80
[ 3574.039530][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3574.039530][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3574.039530][   T73]      ip6_route_add+0x1c/0x140
[ 3574.039530][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3574.039530][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3574.039530][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3574.039530][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3574.039530][   T73]      netlink_rcv_skb+0x130/0x360
[ 3574.039530][   T73]      netlink_unicast+0x449/0x710
[ 3574.039530][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3574.039530][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3574.039530][   T73]      ___sys_sendmsg+0xee/0x170
[ 3574.039530][   T73]      __sys_sendmsg+0xcd/0x170
[ 3574.039530][   T73]      do_syscall_64+0xc6/0x1e0
[ 3574.039530][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3574.039530][   T73] 
[ 3574.041550][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3574.041550][   T73]      netdev_get_by_index+0x5e/0x80
[ 3574.041550][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3574.041550][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3574.041550][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3574.041550][   T73]      ipv6_add_addr+0x411/0x2000
[ 3574.041550][   T73]      inet6_addr_add+0x30e/0xa40
[ 3574.041550][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3574.041550][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3574.041550][   T73]      netlink_rcv_skb+0x130/0x360
[ 3574.041550][   T73]      netlink_unicast+0x449/0x710
[ 3574.041550][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3574.041550][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3574.041550][   T73]      ___sys_sendmsg+0xee/0x170
[ 3574.041550][   T73]      __sys_sendmsg+0xcd/0x170
[ 3574.041550][   T73]      do_syscall_64+0xc6/0x1e0
[ 3574.041550][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3574.041550][   T73] 
[ 3574.043547][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3574.043547][   T73]      netdev_get_by_index+0x5e/0x80
[ 3574.043547][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3574.043547][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3574.043547][   T73]      ip6_route_add+0x1c/0x140
[ 3574.043547][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3574.043547][   T73]      addrconf_add_dev+0xe2/0x170
[ 3574.043547][   T73]      inet6_addr_add+0x12f/0xa40
[ 3574.043547][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3574.043547][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3574.043547][   T73]      netlink_rcv_skb+0x130/0x360
[ 3574.043547][   T73]      netlink_unicast+0x449/0x710
[ 3574.043547][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3574.043547][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3574.043547][   T73]      ___sys_sendmsg+0xee/0x170
[ 3574.043547][   T73]      __sys_sendmsg+0xcd/0x170
[ 3574.043547][   T73]      do_syscall_64+0xc6/0x1e0
[ 3574.043547][   T73] 
[ 3574.045515][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3574.045515][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3574.045515][   T73]      ipv6_find_idev+0x102/0x170
[ 3574.045515][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3574.045515][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3574.045515][   T73]      netlink_rcv_skb+0x130/0x360
[ 3574.045515][   T73]      netlink_unicast+0x449/0x710
[ 3574.045515][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3574.045515][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3574.045515][   T73]      ___sys_sendmsg+0xee/0x170
[ 3574.045515][   T73]      __sys_sendmsg+0xcd/0x170
[ 3574.045515][   T73]      do_syscall_64+0xc6/0x1e0
[ 3574.045515][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3574.045515][   T73] 
[ 3574.047060][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3574.047060][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3574.047060][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3574.047060][   T73]      ipv6_find_idev+0x102/0x170
[ 3574.047060][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3574.047060][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3574.047060][   T73]      netlink_rcv_skb+0x130/0x360
[ 3574.047060][   T73]      netlink_unicast+0x449/0x710
[ 3574.047060][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3574.047060][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3574.047060][   T73]      ___sys_sendmsg+0xee/0x170
[ 3574.047060][   T73]      __sys_sendmsg+0xcd/0x170
[ 3574.047060][   T73]      do_syscall_64+0xc6/0x1e0
[ 3574.047060][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3574.047060][   T73] 
[ 3574.048753][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3574.049024][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3574.049024][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3574.049024][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3574.049024][   T73]      fib6_nh_init+0xa22/0x1580
[ 3574.049024][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3574.049024][   T73]      ip6_route_add+0x1c/0x140
[ 3574.049024][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3574.049024][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3574.049024][   T73]      netlink_rcv_skb+0x130/0x360
[ 3574.049024][   T73]      netlink_unicast+0x449/0x710
[ 3574.049024][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3574.049024][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3574.049024][   T73]      ___sys_sendmsg+0xee/0x170
[ 3574.049024][   T73]      __sys_sendmsg+0xcd/0x170
[ 3574.049024][   T73]      do_syscall_64+0xc6/0x1e0
[ 3574.049024][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3574.049024][   T73] 
[ 3574.051105][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3574.051105][   T73]      dst_init+0x84/0x4a0
[ 3574.051105][   T73]      dst_alloc+0x97/0x150
[ 3574.051105][   T73]      ip6_dst_alloc+0x23/0x90
[ 3574.051105][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3574.051105][   T73]      ip6_pol_route+0x56f/0x840
[ 3574.051105][   T73]      fib6_rule_lookup+0x456/0x630
[ 3574.051105][   T73]      ip6_route_input+0x59c/0xa50
[ 3574.051105][   T73]      ipv6_rcv+0x397/0x810
[ 3574.051105][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3574.051105][   T73]      process_backlog+0x101/0x620
[ 3574.051105][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3574.051105][   T73]      net_rx_action+0x495/0xbe0
[ 3574.051105][   T73]      __do_softirq+0x1b5/0x7f6
[ 3574.051105][   T73] 
[ 3574.052985][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3574.052985][   T73]      netdev_get_by_index+0x5e/0x80
[ 3574.052985][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3574.052985][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3574.052985][   T73]      ip6_route_add+0x1c/0x140
[ 3574.052985][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3574.052985][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3574.052985][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3574.052985][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3574.052985][   T73]      netlink_rcv_skb+0x130/0x360
[ 3574.052985][   T73]      netlink_unicast+0x449/0x710
[ 3574.052985][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3574.052985][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3574.052985][   T73]      ___sys_sendmsg+0xee/0x170
[ 3574.052985][   T73]      __sys_sendmsg+0xcd/0x170
[ 3574.052985][   T73]      do_syscall_64+0xc6/0x1e0
[ 3574.052985][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3574.052985][   T73] 
[ 3574.055244][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3574.055244][   T73]      netdev_get_by_index+0x5e/0x80
[ 3574.055244][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3574.055244][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3574.055244][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3574.055244][   T73]      ipv6_add_addr+0x411/0x2000
[ 3574.055244][   T73]      inet6_addr_add+0x30e/0xa40
[ 3574.055244][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3574.055244][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3574.055244][   T73]      netlink_rcv_skb+0x130/0x360
[ 3574.055244][   T73]      netlink_unicast+0x449/0x710
[ 3574.055244][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3574.055244][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3574.055244][   T73]      ___sys_sendmsg+0xee/0x170
[ 3574.055244][   T73]      __sys_sendmsg+0xcd/0x170
[ 3574.055244][   T73]      do_syscall_64+0xc6/0x1e0
[ 3574.055244][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3574.055244][   T73] 
[ 3574.057454][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3574.057454][   T73]      netdev_get_by_index+0x5e/0x80
[ 3574.057454][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3574.057454][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3574.057454][   T73]      ip6_route_add+0x1c/0x140
[ 3574.057454][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3574.057454][   T73]      addrconf_add_dev+0xe2/0x170
[ 3574.057454][   T73]      inet6_addr_add+0x12f/0xa40
[ 3574.057454][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3574.057454][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3574.057454][   T73]      netlink_rcv_skb+0x130/0x360
[ 3574.057454][   T73]      netlink_unicast+0x449/0x710
[ 3574.057454][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3574.057454][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3574.057454][   T73]      ___sys_sendmsg+0xee/0x170
[ 3574.057454][   T73]      __sys_sendmsg+0xcd/0x170
[ 3574.057454][   T73]      do_syscall_64+0xc6/0x1e0
[ 3574.057454][   T73] 
[ 3574.059628][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3574.059628][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3574.059628][   T73]      ipv6_find_idev+0x102/0x170
[ 3574.059628][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3574.059628][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3574.059628][   T73]      netlink_rcv_skb+0x130/0x360
[ 3574.059628][   T73]      netlink_unicast+0x449/0x710
[ 3574.059628][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3574.059628][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3574.059628][   T73]      ___sys_sendmsg+0xee/0x170
[ 3574.059628][   T73]      __sys_sendmsg+0xcd/0x170
[ 3574.059628][   T73]      do_syscall_64+0xc6/0x1e0
[ 3574.059628][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3574.059628][   T73] 
[ 3574.061438][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3574.061438][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3574.061438][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3574.061438][   T73]      ipv6_find_idev+0x102/0x170
[ 3574.061438][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3574.061438][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3574.061438][   T73]      netlink_rcv_skb+0x130/0x360
[ 3574.061438][   T73]      netlink_unicast+0x449/0x710
[ 3574.061438][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3574.061438][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3574.061438][   T73]      ___sys_sendmsg+0xee/0x170
[ 3574.061438][   T73]      __sys_sendmsg+0xcd/0x170
[ 3574.061438][   T73]      do_syscall_64+0xc6/0x1e0
[ 3574.061438][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3574.061438][   T73] 
[ 3574.063314][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3574.063663][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3574.063663][   T73]      netdev_get_by_index+0x5e/0x80
[ 3574.063663][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3574.063663][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3574.063663][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3574.063663][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3574.063663][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3574.063663][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3574.063663][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3574.063663][   T73]      addrconf_dad_begin+0x310/0x670
[ 3574.063663][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3574.063663][   T73]      process_one_work+0x84d/0x18a0
[ 3574.063663][   T73]      worker_thread+0x587/0xd30
[ 3574.063663][   T73]      kthread+0x28a/0x350
[ 3574.063663][   T73]      ret_from_fork+0x31/0x70
[ 3574.063663][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3574.063663][   T73] 
[ 3574.065704][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3574.065704][   T73]      netdev_get_by_index+0x5e/0x80
[ 3574.065704][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3574.065704][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3574.065704][   T73]      ip6_route_add+0x1c/0x140
[ 3574.065704][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3574.065704][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3574.065704][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3574.065704][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3574.065704][   T73]      netlink_rcv_skb+0x130/0x360
[ 3574.065704][   T73]      netlink_unicast+0x449/0x710
[ 3574.065704][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3574.065704][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3574.065704][   T73]      ___sys_sendmsg+0xee/0x170
[ 3574.065704][   T73]      __sys_sendmsg+0xcd/0x170
[ 3574.065704][   T73]      do_syscall_64+0xc6/0x1e0
[ 3574.065704][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3574.065704][   T73] 
[ 3574.067968][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3574.067968][   T73]      netdev_get_by_index+0x5e/0x80
[ 3574.067968][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3574.067968][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3574.067968][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3574.067968][   T73]      ipv6_add_addr+0x411/0x2000
[ 3574.067968][   T73]      inet6_addr_add+0x30e/0xa40
[ 3574.067968][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3574.067968][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3574.067968][   T73]      netlink_rcv_skb+0x130/0x360
[ 3574.067968][   T73]      netlink_unicast+0x449/0x710
[ 3574.067968][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3574.067968][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3574.067968][   T73]      ___sys_sendmsg+0xee/0x170
[ 3574.067968][   T73]      __sys_sendmsg+0xcd/0x170
[ 3574.067968][   T73]      do_syscall_64+0xc6/0x1e0
[ 3574.067968][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3574.067968][   T73] 
[ 3574.070220][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3574.070220][   T73]      netdev_get_by_index+0x5e/0x80
[ 3574.070220][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3574.070220][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3574.070220][   T73]      ip6_route_add+0x1c/0x140
[ 3574.070220][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3574.070220][   T73]      addrconf_add_dev+0xe2/0x170
[ 3574.070220][   T73]      inet6_addr_add+0x12f/0xa40
[ 3574.070220][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3574.070220][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3574.070220][   T73]      netlink_rcv_skb+0x130/0x360
[ 3574.070220][   T73]      netlink_unicast+0x449/0x710
[ 3574.070220][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3574.070220][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3574.070220][   T73]      ___sys_sendmsg+0xee/0x170
[ 3574.070220][   T73]      __sys_sendmsg+0xcd/0x170
[ 3574.070220][   T73]      do_syscall_64+0xc6/0x1e0
[ 3574.070220][   T73] 
[ 3574.072493][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3574.072493][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3574.072493][   T73]      ipv6_find_idev+0x102/0x170
[ 3574.072493][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3574.072493][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3574.072493][   T73]      netlink_rcv_skb+0x130/0x360
[ 3574.072493][   T73]      netlink_unicast+0x449/0x710
[ 3574.072493][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3574.072493][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3574.072493][   T73]      ___sys_sendmsg+0xee/0x170
[ 3574.072493][   T73]      __sys_sendmsg+0xcd/0x170
[ 3574.072493][   T73]      do_syscall_64+0xc6/0x1e0
[ 3574.072493][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3574.072493][   T73] 
[ 3574.074224][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3574.074224][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3574.074224][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3574.074224][   T73]      ipv6_find_idev+0x102/0x170
[ 3574.074224][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3574.074224][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3574.074224][   T73]      netlink_rcv_skb+0x130/0x360
[ 3574.074224][   T73]      netlink_unicast+0x449/0x710
[ 3574.074224][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3574.074224][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3574.074224][   T73]      ___sys_sendmsg+0xee/0x170
[ 3574.074224][   T73]      __sys_sendmsg+0xcd/0x170
[ 3574.074224][   T73]      do_syscall_64+0xc6/0x1e0
[ 3574.074224][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3574.074224][   T73] 
[ 3584.311811][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3584.312296][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3584.312296][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3584.312296][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3584.312296][   T73]      fib6_nh_init+0xa22/0x1580
[ 3584.312296][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3584.312296][   T73]      ip6_route_add+0x1c/0x140
[ 3584.312296][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3584.312296][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3584.312296][   T73]      netlink_rcv_skb+0x130/0x360
[ 3584.312296][   T73]      netlink_unicast+0x449/0x710
[ 3584.312296][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3584.312296][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3584.312296][   T73]      ___sys_sendmsg+0xee/0x170
[ 3584.312296][   T73]      __sys_sendmsg+0xcd/0x170
[ 3584.312296][   T73]      do_syscall_64+0xc6/0x1e0
[ 3584.312296][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3584.312296][   T73] 
[ 3584.314234][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3584.314234][   T73]      dst_init+0x84/0x4a0
[ 3584.314234][   T73]      dst_alloc+0x97/0x150
[ 3584.314234][   T73]      ip6_dst_alloc+0x23/0x90
[ 3584.314234][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3584.314234][   T73]      ip6_pol_route+0x56f/0x840
[ 3584.314234][   T73]      fib6_rule_lookup+0x456/0x630
[ 3584.314234][   T73]      ip6_route_input+0x59c/0xa50
[ 3584.314234][   T73]      ipv6_rcv+0x397/0x810
[ 3584.314234][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3584.314234][   T73]      process_backlog+0x101/0x620
[ 3584.314234][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3584.314234][   T73]      net_rx_action+0x495/0xbe0
[ 3584.314234][   T73]      __do_softirq+0x1b5/0x7f6
[ 3584.314234][   T73] 
[ 3584.315896][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3584.315896][   T73]      netdev_get_by_index+0x5e/0x80
[ 3584.315896][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3584.315896][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3584.315896][   T73]      ip6_route_add+0x1c/0x140
[ 3584.315896][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3584.315896][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3584.315896][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3584.315896][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3584.315896][   T73]      netlink_rcv_skb+0x130/0x360
[ 3584.315896][   T73]      netlink_unicast+0x449/0x710
[ 3584.315896][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3584.315896][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3584.315896][   T73]      ___sys_sendmsg+0xee/0x170
[ 3584.315896][   T73]      __sys_sendmsg+0xcd/0x170
[ 3584.315896][   T73]      do_syscall_64+0xc6/0x1e0
[ 3584.315896][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3584.315896][   T73] 
[ 3584.317920][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3584.317920][   T73]      netdev_get_by_index+0x5e/0x80
[ 3584.317920][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3584.317920][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3584.317920][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3584.317920][   T73]      ipv6_add_addr+0x411/0x2000
[ 3584.317920][   T73]      inet6_addr_add+0x30e/0xa40
[ 3584.317920][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3584.317920][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3584.317920][   T73]      netlink_rcv_skb+0x130/0x360
[ 3584.317920][   T73]      netlink_unicast+0x449/0x710
[ 3584.317920][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3584.317920][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3584.317920][   T73]      ___sys_sendmsg+0xee/0x170
[ 3584.317920][   T73]      __sys_sendmsg+0xcd/0x170
[ 3584.317920][   T73]      do_syscall_64+0xc6/0x1e0
[ 3584.317920][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3584.317920][   T73] 
[ 3584.319945][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3584.319945][   T73]      netdev_get_by_index+0x5e/0x80
[ 3584.319945][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3584.319945][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3584.319945][   T73]      ip6_route_add+0x1c/0x140
[ 3584.319945][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3584.319945][   T73]      addrconf_add_dev+0xe2/0x170
[ 3584.319945][   T73]      inet6_addr_add+0x12f/0xa40
[ 3584.319945][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3584.319945][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3584.319945][   T73]      netlink_rcv_skb+0x130/0x360
[ 3584.319945][   T73]      netlink_unicast+0x449/0x710
[ 3584.319945][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3584.319945][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3584.319945][   T73]      ___sys_sendmsg+0xee/0x170
[ 3584.319945][   T73]      __sys_sendmsg+0xcd/0x170
[ 3584.319945][   T73]      do_syscall_64+0xc6/0x1e0
[ 3584.319945][   T73] 
[ 3584.321912][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3584.321912][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3584.321912][   T73]      ipv6_find_idev+0x102/0x170
[ 3584.321912][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3584.321912][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3584.321912][   T73]      netlink_rcv_skb+0x130/0x360
[ 3584.321912][   T73]      netlink_unicast+0x449/0x710
[ 3584.321912][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3584.321912][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3584.321912][   T73]      ___sys_sendmsg+0xee/0x170
[ 3584.321912][   T73]      __sys_sendmsg+0xcd/0x170
[ 3584.321912][   T73]      do_syscall_64+0xc6/0x1e0
[ 3584.321912][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3584.321912][   T73] 
[ 3584.323472][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3584.323472][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3584.323472][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3584.323472][   T73]      ipv6_find_idev+0x102/0x170
[ 3584.323472][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3584.323472][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3584.323472][   T73]      netlink_rcv_skb+0x130/0x360
[ 3584.323472][   T73]      netlink_unicast+0x449/0x710
[ 3584.323472][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3584.323472][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3584.323472][   T73]      ___sys_sendmsg+0xee/0x170
[ 3584.323472][   T73]      __sys_sendmsg+0xcd/0x170
[ 3584.323472][   T73]      do_syscall_64+0xc6/0x1e0
[ 3584.323472][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3584.323472][   T73] 
[ 3584.325174][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3584.325465][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3584.325465][   T73]      netdev_get_by_index+0x5e/0x80
[ 3584.325465][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3584.325465][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3584.325465][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3584.325465][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3584.325465][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3584.325465][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3584.325465][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3584.325465][   T73]      addrconf_dad_begin+0x310/0x670
[ 3584.325465][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3584.325465][   T73]      process_one_work+0x84d/0x18a0
[ 3584.325465][   T73]      worker_thread+0x587/0xd30
[ 3584.325465][   T73]      kthread+0x28a/0x350
[ 3584.325465][   T73]      ret_from_fork+0x31/0x70
[ 3584.325465][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3584.325465][   T73] 
[ 3584.327378][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3584.327378][   T73]      netdev_get_by_index+0x5e/0x80
[ 3584.327378][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3584.327378][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3584.327378][   T73]      ip6_route_add+0x1c/0x140
[ 3584.327378][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3584.327378][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3584.327378][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3584.327378][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3584.327378][   T73]      netlink_rcv_skb+0x130/0x360
[ 3584.327378][   T73]      netlink_unicast+0x449/0x710
[ 3584.327378][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3584.327378][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3584.327378][   T73]      ___sys_sendmsg+0xee/0x170
[ 3584.327378][   T73]      __sys_sendmsg+0xcd/0x170
[ 3584.327378][   T73]      do_syscall_64+0xc6/0x1e0
[ 3584.327378][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3584.327378][   T73] 
[ 3584.329442][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3584.329442][   T73]      netdev_get_by_index+0x5e/0x80
[ 3584.329442][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3584.329442][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3584.329442][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3584.329442][   T73]      ipv6_add_addr+0x411/0x2000
[ 3584.329442][   T73]      inet6_addr_add+0x30e/0xa40
[ 3584.329442][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3584.329442][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3584.329442][   T73]      netlink_rcv_skb+0x130/0x360
[ 3584.329442][   T73]      netlink_unicast+0x449/0x710
[ 3584.329442][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3584.329442][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3584.329442][   T73]      ___sys_sendmsg+0xee/0x170
[ 3584.329442][   T73]      __sys_sendmsg+0xcd/0x170
[ 3584.329442][   T73]      do_syscall_64+0xc6/0x1e0
[ 3584.329442][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3584.329442][   T73] 
[ 3584.331462][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3584.331462][   T73]      netdev_get_by_index+0x5e/0x80
[ 3584.331462][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3584.331462][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3584.331462][   T73]      ip6_route_add+0x1c/0x140
[ 3584.331462][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3584.331462][   T73]      addrconf_add_dev+0xe2/0x170
[ 3584.331462][   T73]      inet6_addr_add+0x12f/0xa40
[ 3584.331462][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3584.331462][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3584.331462][   T73]      netlink_rcv_skb+0x130/0x360
[ 3584.331462][   T73]      netlink_unicast+0x449/0x710
[ 3584.331462][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3584.331462][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3584.331462][   T73]      ___sys_sendmsg+0xee/0x170
[ 3584.331462][   T73]      __sys_sendmsg+0xcd/0x170
[ 3584.331462][   T73]      do_syscall_64+0xc6/0x1e0
[ 3584.331462][   T73] 
[ 3584.333428][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3584.333428][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3584.333428][   T73]      ipv6_find_idev+0x102/0x170
[ 3584.333428][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3584.333428][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3584.333428][   T73]      netlink_rcv_skb+0x130/0x360
[ 3584.333428][   T73]      netlink_unicast+0x449/0x710
[ 3584.333428][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3584.333428][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3584.333428][   T73]      ___sys_sendmsg+0xee/0x170
[ 3584.333428][   T73]      __sys_sendmsg+0xcd/0x170
[ 3584.333428][   T73]      do_syscall_64+0xc6/0x1e0
[ 3584.333428][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3584.333428][   T73] 
[ 3584.334972][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3584.334972][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3584.334972][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3584.334972][   T73]      ipv6_find_idev+0x102/0x170
[ 3584.334972][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3584.334972][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3584.334972][   T73]      netlink_rcv_skb+0x130/0x360
[ 3584.334972][   T73]      netlink_unicast+0x449/0x710
[ 3584.334972][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3584.334972][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3584.334972][   T73]      ___sys_sendmsg+0xee/0x170
[ 3584.334972][   T73]      __sys_sendmsg+0xcd/0x170
[ 3584.334972][   T73]      do_syscall_64+0xc6/0x1e0
[ 3584.334972][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3584.334972][   T73] 
[ 3584.336678][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3584.336959][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3584.336959][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3584.336959][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3584.336959][   T73]      fib6_nh_init+0xa22/0x1580
[ 3584.336959][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3584.336959][   T73]      ip6_route_add+0x1c/0x140
[ 3584.336959][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3584.336959][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3584.336959][   T73]      netlink_rcv_skb+0x130/0x360
[ 3584.336959][   T73]      netlink_unicast+0x449/0x710
[ 3584.336959][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3584.336959][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3584.336959][   T73]      ___sys_sendmsg+0xee/0x170
[ 3584.336959][   T73]      __sys_sendmsg+0xcd/0x170
[ 3584.336959][   T73]      do_syscall_64+0xc6/0x1e0
[ 3584.336959][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3584.336959][   T73] 
[ 3584.339033][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3584.339033][   T73]      dst_init+0x84/0x4a0
[ 3584.339033][   T73]      dst_alloc+0x97/0x150
[ 3584.339033][   T73]      ip6_dst_alloc+0x23/0x90
[ 3584.339033][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3584.339033][   T73]      ip6_pol_route+0x56f/0x840
[ 3584.339033][   T73]      fib6_rule_lookup+0x456/0x630
[ 3584.339033][   T73]      ip6_route_input+0x59c/0xa50
[ 3584.339033][   T73]      ipv6_rcv+0x397/0x810
[ 3584.339033][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3584.339033][   T73]      process_backlog+0x101/0x620
[ 3584.339033][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3584.339033][   T73]      net_rx_action+0x495/0xbe0
[ 3584.339033][   T73]      __do_softirq+0x1b5/0x7f6
[ 3584.339033][   T73] 
[ 3584.340857][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3584.340857][   T73]      netdev_get_by_index+0x5e/0x80
[ 3584.340857][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3584.340857][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3584.340857][   T73]      ip6_route_add+0x1c/0x140
[ 3584.340857][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3584.340857][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3584.340857][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3584.340857][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3584.340857][   T73]      netlink_rcv_skb+0x130/0x360
[ 3584.340857][   T73]      netlink_unicast+0x449/0x710
[ 3584.340857][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3584.340857][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3584.340857][   T73]      ___sys_sendmsg+0xee/0x170
[ 3584.340857][   T73]      __sys_sendmsg+0xcd/0x170
[ 3584.340857][   T73]      do_syscall_64+0xc6/0x1e0
[ 3584.340857][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3584.340857][   T73] 
[ 3584.343102][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3584.343102][   T73]      netdev_get_by_index+0x5e/0x80
[ 3584.343102][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3584.343102][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3584.343102][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3584.343102][   T73]      ipv6_add_addr+0x411/0x2000
[ 3584.343102][   T73]      inet6_addr_add+0x30e/0xa40
[ 3584.343102][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3584.343102][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3584.343102][   T73]      netlink_rcv_skb+0x130/0x360
[ 3584.343102][   T73]      netlink_unicast+0x449/0x710
[ 3584.343102][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3584.343102][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3584.343102][   T73]      ___sys_sendmsg+0xee/0x170
[ 3584.343102][   T73]      __sys_sendmsg+0xcd/0x170
[ 3584.343102][   T73]      do_syscall_64+0xc6/0x1e0
[ 3584.343102][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3584.343102][   T73] 
[ 3584.345352][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3584.345352][   T73]      netdev_get_by_index+0x5e/0x80
[ 3584.345352][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3584.345352][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3584.345352][   T73]      ip6_route_add+0x1c/0x140
[ 3584.345352][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3584.345352][   T73]      addrconf_add_dev+0xe2/0x170
[ 3584.345352][   T73]      inet6_addr_add+0x12f/0xa40
[ 3584.345352][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3584.345352][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3584.345352][   T73]      netlink_rcv_skb+0x130/0x360
[ 3584.345352][   T73]      netlink_unicast+0x449/0x710
[ 3584.345352][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3584.345352][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3584.345352][   T73]      ___sys_sendmsg+0xee/0x170
[ 3584.345352][   T73]      __sys_sendmsg+0xcd/0x170
[ 3584.345352][   T73]      do_syscall_64+0xc6/0x1e0
[ 3584.345352][   T73] 
[ 3584.347590][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3584.347590][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3584.347590][   T73]      ipv6_find_idev+0x102/0x170
[ 3584.347590][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3584.347590][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3584.347590][   T73]      netlink_rcv_skb+0x130/0x360
[ 3584.347590][   T73]      netlink_unicast+0x449/0x710
[ 3584.347590][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3584.347590][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3584.347590][   T73]      ___sys_sendmsg+0xee/0x170
[ 3584.347590][   T73]      __sys_sendmsg+0xcd/0x170
[ 3584.347590][   T73]      do_syscall_64+0xc6/0x1e0
[ 3584.347590][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3584.347590][   T73] 
[ 3584.349327][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3584.349327][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3584.349327][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3584.349327][   T73]      ipv6_find_idev+0x102/0x170
[ 3584.349327][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3584.349327][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3584.349327][   T73]      netlink_rcv_skb+0x130/0x360
[ 3584.349327][   T73]      netlink_unicast+0x449/0x710
[ 3584.349327][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3584.349327][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3584.349327][   T73]      ___sys_sendmsg+0xee/0x170
[ 3584.349327][   T73]      __sys_sendmsg+0xcd/0x170
[ 3584.349327][   T73]      do_syscall_64+0xc6/0x1e0
[ 3584.349327][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3584.349327][   T73] 
[ 3584.351202][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3584.351542][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3584.351542][   T73]      netdev_get_by_index+0x5e/0x80
[ 3584.351542][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3584.351542][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3584.351542][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3584.351542][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3584.351542][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3584.351542][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3584.351542][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3584.351542][   T73]      addrconf_dad_begin+0x310/0x670
[ 3584.351542][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3584.351542][   T73]      process_one_work+0x84d/0x18a0
[ 3584.351542][   T73]      worker_thread+0x587/0xd30
[ 3584.351542][   T73]      kthread+0x28a/0x350
[ 3584.351542][   T73]      ret_from_fork+0x31/0x70
[ 3584.351542][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3584.351542][   T73] 
[ 3584.353581][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3584.353581][   T73]      netdev_get_by_index+0x5e/0x80
[ 3584.353581][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3584.353581][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3584.353581][   T73]      ip6_route_add+0x1c/0x140
[ 3584.353581][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3584.353581][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3584.353581][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3584.353581][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3584.353581][   T73]      netlink_rcv_skb+0x130/0x360
[ 3584.353581][   T73]      netlink_unicast+0x449/0x710
[ 3584.353581][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3584.353581][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3584.353581][   T73]      ___sys_sendmsg+0xee/0x170
[ 3584.353581][   T73]      __sys_sendmsg+0xcd/0x170
[ 3584.353581][   T73]      do_syscall_64+0xc6/0x1e0
[ 3584.353581][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3584.353581][   T73] 
[ 3584.355889][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3584.355889][   T73]      netdev_get_by_index+0x5e/0x80
[ 3584.355889][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3584.355889][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3584.355889][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3584.355889][   T73]      ipv6_add_addr+0x411/0x2000
[ 3584.355889][   T73]      inet6_addr_add+0x30e/0xa40
[ 3584.355889][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3584.355889][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3584.355889][   T73]      netlink_rcv_skb+0x130/0x360
[ 3584.355889][   T73]      netlink_unicast+0x449/0x710
[ 3584.355889][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3584.355889][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3584.355889][   T73]      ___sys_sendmsg+0xee/0x170
[ 3584.355889][   T73]      __sys_sendmsg+0xcd/0x170
[ 3584.355889][   T73]      do_syscall_64+0xc6/0x1e0
[ 3584.355889][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3584.355889][   T73] 
[ 3584.358153][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3584.358153][   T73]      netdev_get_by_index+0x5e/0x80
[ 3584.358153][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3584.358153][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3584.358153][   T73]      ip6_route_add+0x1c/0x140
[ 3584.358153][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3584.358153][   T73]      addrconf_add_dev+0xe2/0x170
[ 3584.358153][   T73]      inet6_addr_add+0x12f/0xa40
[ 3584.358153][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3584.358153][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3584.358153][   T73]      netlink_rcv_skb+0x130/0x360
[ 3584.358153][   T73]      netlink_unicast+0x449/0x710
[ 3584.358153][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3584.358153][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3584.358153][   T73]      ___sys_sendmsg+0xee/0x170
[ 3584.358153][   T73]      __sys_sendmsg+0xcd/0x170
[ 3584.358153][   T73]      do_syscall_64+0xc6/0x1e0
[ 3584.358153][   T73] 
[ 3584.360370][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3584.360370][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3584.360370][   T73]      ipv6_find_idev+0x102/0x170
[ 3584.360370][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3584.360370][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3584.360370][   T73]      netlink_rcv_skb+0x130/0x360
[ 3584.360370][   T73]      netlink_unicast+0x449/0x710
[ 3584.360370][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3584.360370][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3584.360370][   T73]      ___sys_sendmsg+0xee/0x170
[ 3584.360370][   T73]      __sys_sendmsg+0xcd/0x170
[ 3584.360370][   T73]      do_syscall_64+0xc6/0x1e0
[ 3584.360370][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3584.360370][   T73] 
[ 3584.362119][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3584.362119][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3584.362119][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3584.362119][   T73]      ipv6_find_idev+0x102/0x170
[ 3584.362119][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3584.362119][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3584.362119][   T73]      netlink_rcv_skb+0x130/0x360
[ 3584.362119][   T73]      netlink_unicast+0x449/0x710
[ 3584.362119][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3584.362119][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3584.362119][   T73]      ___sys_sendmsg+0xee/0x170
[ 3584.362119][   T73]      __sys_sendmsg+0xcd/0x170
[ 3584.362119][   T73]      do_syscall_64+0xc6/0x1e0
[ 3584.362119][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3584.362119][   T73] 
[ 3594.599782][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3594.600272][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3594.600272][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3594.600272][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3594.600272][   T73]      fib6_nh_init+0xa22/0x1580
[ 3594.600272][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3594.600272][   T73]      ip6_route_add+0x1c/0x140
[ 3594.600272][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3594.600272][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3594.600272][   T73]      netlink_rcv_skb+0x130/0x360
[ 3594.600272][   T73]      netlink_unicast+0x449/0x710
[ 3594.600272][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3594.600272][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3594.600272][   T73]      ___sys_sendmsg+0xee/0x170
[ 3594.600272][   T73]      __sys_sendmsg+0xcd/0x170
[ 3594.600272][   T73]      do_syscall_64+0xc6/0x1e0
[ 3594.600272][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3594.600272][   T73] 
[ 3594.602237][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3594.602237][   T73]      dst_init+0x84/0x4a0
[ 3594.602237][   T73]      dst_alloc+0x97/0x150
[ 3594.602237][   T73]      ip6_dst_alloc+0x23/0x90
[ 3594.602237][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3594.602237][   T73]      ip6_pol_route+0x56f/0x840
[ 3594.602237][   T73]      fib6_rule_lookup+0x456/0x630
[ 3594.602237][   T73]      ip6_route_input+0x59c/0xa50
[ 3594.602237][   T73]      ipv6_rcv+0x397/0x810
[ 3594.602237][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3594.602237][   T73]      process_backlog+0x101/0x620
[ 3594.602237][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3594.602237][   T73]      net_rx_action+0x495/0xbe0
[ 3594.602237][   T73]      __do_softirq+0x1b5/0x7f6
[ 3594.602237][   T73] 
[ 3594.603887][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3594.603887][   T73]      netdev_get_by_index+0x5e/0x80
[ 3594.603887][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3594.603887][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3594.603887][   T73]      ip6_route_add+0x1c/0x140
[ 3594.603887][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3594.603887][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3594.603887][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3594.603887][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3594.603887][   T73]      netlink_rcv_skb+0x130/0x360
[ 3594.603887][   T73]      netlink_unicast+0x449/0x710
[ 3594.603887][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3594.603887][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3594.603887][   T73]      ___sys_sendmsg+0xee/0x170
[ 3594.603887][   T73]      __sys_sendmsg+0xcd/0x170
[ 3594.603887][   T73]      do_syscall_64+0xc6/0x1e0
[ 3594.603887][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3594.603887][   T73] 
[ 3594.605912][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3594.605912][   T73]      netdev_get_by_index+0x5e/0x80
[ 3594.605912][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3594.605912][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3594.605912][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3594.605912][   T73]      ipv6_add_addr+0x411/0x2000
[ 3594.605912][   T73]      inet6_addr_add+0x30e/0xa40
[ 3594.605912][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3594.605912][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3594.605912][   T73]      netlink_rcv_skb+0x130/0x360
[ 3594.605912][   T73]      netlink_unicast+0x449/0x710
[ 3594.605912][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3594.605912][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3594.605912][   T73]      ___sys_sendmsg+0xee/0x170
[ 3594.605912][   T73]      __sys_sendmsg+0xcd/0x170
[ 3594.605912][   T73]      do_syscall_64+0xc6/0x1e0
[ 3594.605912][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3594.605912][   T73] 
[ 3594.607944][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3594.607944][   T73]      netdev_get_by_index+0x5e/0x80
[ 3594.607944][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3594.607944][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3594.607944][   T73]      ip6_route_add+0x1c/0x140
[ 3594.607944][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3594.607944][   T73]      addrconf_add_dev+0xe2/0x170
[ 3594.607944][   T73]      inet6_addr_add+0x12f/0xa40
[ 3594.607944][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3594.607944][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3594.607944][   T73]      netlink_rcv_skb+0x130/0x360
[ 3594.607944][   T73]      netlink_unicast+0x449/0x710
[ 3594.607944][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3594.607944][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3594.607944][   T73]      ___sys_sendmsg+0xee/0x170
[ 3594.607944][   T73]      __sys_sendmsg+0xcd/0x170
[ 3594.607944][   T73]      do_syscall_64+0xc6/0x1e0
[ 3594.607944][   T73] 
[ 3594.609931][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3594.609931][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3594.609931][   T73]      ipv6_find_idev+0x102/0x170
[ 3594.609931][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3594.609931][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3594.609931][   T73]      netlink_rcv_skb+0x130/0x360
[ 3594.609931][   T73]      netlink_unicast+0x449/0x710
[ 3594.609931][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3594.609931][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3594.609931][   T73]      ___sys_sendmsg+0xee/0x170
[ 3594.609931][   T73]      __sys_sendmsg+0xcd/0x170
[ 3594.609931][   T73]      do_syscall_64+0xc6/0x1e0
[ 3594.609931][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3594.609931][   T73] 
[ 3594.611481][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3594.611481][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3594.611481][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3594.611481][   T73]      ipv6_find_idev+0x102/0x170
[ 3594.611481][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3594.611481][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3594.611481][   T73]      netlink_rcv_skb+0x130/0x360
[ 3594.611481][   T73]      netlink_unicast+0x449/0x710
[ 3594.611481][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3594.611481][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3594.611481][   T73]      ___sys_sendmsg+0xee/0x170
[ 3594.611481][   T73]      __sys_sendmsg+0xcd/0x170
[ 3594.611481][   T73]      do_syscall_64+0xc6/0x1e0
[ 3594.611481][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3594.611481][   T73] 
[ 3594.613192][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3594.613480][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3594.613480][   T73]      netdev_get_by_index+0x5e/0x80
[ 3594.613480][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3594.613480][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3594.613480][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3594.613480][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3594.613480][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3594.613480][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3594.613480][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3594.613480][   T73]      addrconf_dad_begin+0x310/0x670
[ 3594.613480][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3594.613480][   T73]      process_one_work+0x84d/0x18a0
[ 3594.613480][   T73]      worker_thread+0x587/0xd30
[ 3594.613480][   T73]      kthread+0x28a/0x350
[ 3594.613480][   T73]      ret_from_fork+0x31/0x70
[ 3594.613480][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3594.613480][   T73] 
[ 3594.615496][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3594.615496][   T73]      netdev_get_by_index+0x5e/0x80
[ 3594.615496][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3594.615496][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3594.615496][   T73]      ip6_route_add+0x1c/0x140
[ 3594.615496][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3594.615496][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3594.615496][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3594.615496][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3594.615496][   T73]      netlink_rcv_skb+0x130/0x360
[ 3594.615496][   T73]      netlink_unicast+0x449/0x710
[ 3594.615496][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3594.615496][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3594.615496][   T73]      ___sys_sendmsg+0xee/0x170
[ 3594.615496][   T73]      __sys_sendmsg+0xcd/0x170
[ 3594.615496][   T73]      do_syscall_64+0xc6/0x1e0
[ 3594.615496][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3594.615496][   T73] 
[ 3594.617512][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3594.617512][   T73]      netdev_get_by_index+0x5e/0x80
[ 3594.617512][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3594.617512][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3594.617512][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3594.617512][   T73]      ipv6_add_addr+0x411/0x2000
[ 3594.617512][   T73]      inet6_addr_add+0x30e/0xa40
[ 3594.617512][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3594.617512][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3594.617512][   T73]      netlink_rcv_skb+0x130/0x360
[ 3594.617512][   T73]      netlink_unicast+0x449/0x710
[ 3594.617512][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3594.617512][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3594.617512][   T73]      ___sys_sendmsg+0xee/0x170
[ 3594.617512][   T73]      __sys_sendmsg+0xcd/0x170
[ 3594.617512][   T73]      do_syscall_64+0xc6/0x1e0
[ 3594.617512][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3594.617512][   T73] 
[ 3594.619565][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3594.619565][   T73]      netdev_get_by_index+0x5e/0x80
[ 3594.619565][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3594.619565][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3594.619565][   T73]      ip6_route_add+0x1c/0x140
[ 3594.619565][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3594.619565][   T73]      addrconf_add_dev+0xe2/0x170
[ 3594.619565][   T73]      inet6_addr_add+0x12f/0xa40
[ 3594.619565][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3594.619565][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3594.619565][   T73]      netlink_rcv_skb+0x130/0x360
[ 3594.619565][   T73]      netlink_unicast+0x449/0x710
[ 3594.619565][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3594.619565][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3594.619565][   T73]      ___sys_sendmsg+0xee/0x170
[ 3594.619565][   T73]      __sys_sendmsg+0xcd/0x170
[ 3594.619565][   T73]      do_syscall_64+0xc6/0x1e0
[ 3594.619565][   T73] 
[ 3594.621549][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3594.621549][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3594.621549][   T73]      ipv6_find_idev+0x102/0x170
[ 3594.621549][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3594.621549][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3594.621549][   T73]      netlink_rcv_skb+0x130/0x360
[ 3594.621549][   T73]      netlink_unicast+0x449/0x710
[ 3594.621549][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3594.621549][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3594.621549][   T73]      ___sys_sendmsg+0xee/0x170
[ 3594.621549][   T73]      __sys_sendmsg+0xcd/0x170
[ 3594.621549][   T73]      do_syscall_64+0xc6/0x1e0
[ 3594.621549][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3594.621549][   T73] 
[ 3594.623100][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3594.623100][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3594.623100][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3594.623100][   T73]      ipv6_find_idev+0x102/0x170
[ 3594.623100][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3594.623100][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3594.623100][   T73]      netlink_rcv_skb+0x130/0x360
[ 3594.623100][   T73]      netlink_unicast+0x449/0x710
[ 3594.623100][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3594.623100][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3594.623100][   T73]      ___sys_sendmsg+0xee/0x170
[ 3594.623100][   T73]      __sys_sendmsg+0xcd/0x170
[ 3594.623100][   T73]      do_syscall_64+0xc6/0x1e0
[ 3594.623100][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3594.623100][   T73] 
[ 3594.624777][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3594.625069][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3594.625069][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3594.625069][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3594.625069][   T73]      fib6_nh_init+0xa22/0x1580
[ 3594.625069][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3594.625069][   T73]      ip6_route_add+0x1c/0x140
[ 3594.625069][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3594.625069][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3594.625069][   T73]      netlink_rcv_skb+0x130/0x360
[ 3594.625069][   T73]      netlink_unicast+0x449/0x710
[ 3594.625069][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3594.625069][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3594.625069][   T73]      ___sys_sendmsg+0xee/0x170
[ 3594.625069][   T73]      __sys_sendmsg+0xcd/0x170
[ 3594.625069][   T73]      do_syscall_64+0xc6/0x1e0
[ 3594.625069][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3594.625069][   T73] 
[ 3594.627159][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3594.627159][   T73]      dst_init+0x84/0x4a0
[ 3594.627159][   T73]      dst_alloc+0x97/0x150
[ 3594.627159][   T73]      ip6_dst_alloc+0x23/0x90
[ 3594.627159][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3594.627159][   T73]      ip6_pol_route+0x56f/0x840
[ 3594.627159][   T73]      fib6_rule_lookup+0x456/0x630
[ 3594.627159][   T73]      ip6_route_input+0x59c/0xa50
[ 3594.627159][   T73]      ipv6_rcv+0x397/0x810
[ 3594.627159][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3594.627159][   T73]      process_backlog+0x101/0x620
[ 3594.627159][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3594.627159][   T73]      net_rx_action+0x495/0xbe0
[ 3594.627159][   T73]      __do_softirq+0x1b5/0x7f6
[ 3594.627159][   T73] 
[ 3594.629054][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3594.629054][   T73]      netdev_get_by_index+0x5e/0x80
[ 3594.629054][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3594.629054][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3594.629054][   T73]      ip6_route_add+0x1c/0x140
[ 3594.629054][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3594.629054][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3594.629054][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3594.629054][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3594.629054][   T73]      netlink_rcv_skb+0x130/0x360
[ 3594.629054][   T73]      netlink_unicast+0x449/0x710
[ 3594.629054][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3594.629054][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3594.629054][   T73]      ___sys_sendmsg+0xee/0x170
[ 3594.629054][   T73]      __sys_sendmsg+0xcd/0x170
[ 3594.629054][   T73]      do_syscall_64+0xc6/0x1e0
[ 3594.629054][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3594.629054][   T73] 
[ 3594.631304][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3594.631304][   T73]      netdev_get_by_index+0x5e/0x80
[ 3594.631304][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3594.631304][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3594.631304][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3594.631304][   T73]      ipv6_add_addr+0x411/0x2000
[ 3594.631304][   T73]      inet6_addr_add+0x30e/0xa40
[ 3594.631304][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3594.631304][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3594.631304][   T73]      netlink_rcv_skb+0x130/0x360
[ 3594.631304][   T73]      netlink_unicast+0x449/0x710
[ 3594.631304][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3594.631304][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3594.631304][   T73]      ___sys_sendmsg+0xee/0x170
[ 3594.631304][   T73]      __sys_sendmsg+0xcd/0x170
[ 3594.631304][   T73]      do_syscall_64+0xc6/0x1e0
[ 3594.631304][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3594.631304][   T73] 
[ 3594.633569][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3594.633569][   T73]      netdev_get_by_index+0x5e/0x80
[ 3594.633569][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3594.633569][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3594.633569][   T73]      ip6_route_add+0x1c/0x140
[ 3594.633569][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3594.633569][   T73]      addrconf_add_dev+0xe2/0x170
[ 3594.633569][   T73]      inet6_addr_add+0x12f/0xa40
[ 3594.633569][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3594.633569][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3594.633569][   T73]      netlink_rcv_skb+0x130/0x360
[ 3594.633569][   T73]      netlink_unicast+0x449/0x710
[ 3594.633569][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3594.633569][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3594.633569][   T73]      ___sys_sendmsg+0xee/0x170
[ 3594.633569][   T73]      __sys_sendmsg+0xcd/0x170
[ 3594.633569][   T73]      do_syscall_64+0xc6/0x1e0
[ 3594.633569][   T73] 
[ 3594.635674][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3594.635674][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3594.635674][   T73]      ipv6_find_idev+0x102/0x170
[ 3594.635674][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3594.635674][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3594.635674][   T73]      netlink_rcv_skb+0x130/0x360
[ 3594.635674][   T73]      netlink_unicast+0x449/0x710
[ 3594.635674][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3594.635674][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3594.635674][   T73]      ___sys_sendmsg+0xee/0x170
[ 3594.635674][   T73]      __sys_sendmsg+0xcd/0x170
[ 3594.635674][   T73]      do_syscall_64+0xc6/0x1e0
[ 3594.635674][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3594.635674][   T73] 
[ 3594.637454][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3594.637454][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3594.637454][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3594.637454][   T73]      ipv6_find_idev+0x102/0x170
[ 3594.637454][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3594.637454][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3594.637454][   T73]      netlink_rcv_skb+0x130/0x360
[ 3594.637454][   T73]      netlink_unicast+0x449/0x710
[ 3594.637454][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3594.637454][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3594.637454][   T73]      ___sys_sendmsg+0xee/0x170
[ 3594.637454][   T73]      __sys_sendmsg+0xcd/0x170
[ 3594.637454][   T73]      do_syscall_64+0xc6/0x1e0
[ 3594.637454][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3594.637454][   T73] 
[ 3594.639386][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3594.639668][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3594.639668][   T73]      netdev_get_by_index+0x5e/0x80
[ 3594.639668][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3594.639668][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3594.639668][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3594.639668][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3594.639668][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3594.639668][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3594.639668][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3594.639668][   T73]      addrconf_dad_begin+0x310/0x670
[ 3594.639668][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3594.639668][   T73]      process_one_work+0x84d/0x18a0
[ 3594.639668][   T73]      worker_thread+0x587/0xd30
[ 3594.639668][   T73]      kthread+0x28a/0x350
[ 3594.639668][   T73]      ret_from_fork+0x31/0x70
[ 3594.639668][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3594.639668][   T73] 
[ 3594.641833][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3594.641833][   T73]      netdev_get_by_index+0x5e/0x80
[ 3594.641833][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3594.641833][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3594.641833][   T73]      ip6_route_add+0x1c/0x140
[ 3594.641833][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3594.641833][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3594.641833][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3594.641833][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3594.641833][   T73]      netlink_rcv_skb+0x130/0x360
[ 3594.641833][   T73]      netlink_unicast+0x449/0x710
[ 3594.641833][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3594.641833][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3594.641833][   T73]      ___sys_sendmsg+0xee/0x170
[ 3594.641833][   T73]      __sys_sendmsg+0xcd/0x170
[ 3594.641833][   T73]      do_syscall_64+0xc6/0x1e0
[ 3594.641833][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3594.641833][   T73] 
[ 3594.644027][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3594.644027][   T73]      netdev_get_by_index+0x5e/0x80
[ 3594.644027][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3594.644027][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3594.644027][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3594.644027][   T73]      ipv6_add_addr+0x411/0x2000
[ 3594.644027][   T73]      inet6_addr_add+0x30e/0xa40
[ 3594.644027][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3594.644027][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3594.644027][   T73]      netlink_rcv_skb+0x130/0x360
[ 3594.644027][   T73]      netlink_unicast+0x449/0x710
[ 3594.644027][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3594.644027][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3594.644027][   T73]      ___sys_sendmsg+0xee/0x170
[ 3594.644027][   T73]      __sys_sendmsg+0xcd/0x170
[ 3594.644027][   T73]      do_syscall_64+0xc6/0x1e0
[ 3594.644027][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3594.644027][   T73] 
[ 3594.646395][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3594.646395][   T73]      netdev_get_by_index+0x5e/0x80
[ 3594.646395][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3594.646395][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3594.646395][   T73]      ip6_route_add+0x1c/0x140
[ 3594.646395][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3594.646395][   T73]      addrconf_add_dev+0xe2/0x170
[ 3594.646395][   T73]      inet6_addr_add+0x12f/0xa40
[ 3594.646395][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3594.646395][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3594.646395][   T73]      netlink_rcv_skb+0x130/0x360
[ 3594.646395][   T73]      netlink_unicast+0x449/0x710
[ 3594.646395][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3594.646395][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3594.646395][   T73]      ___sys_sendmsg+0xee/0x170
[ 3594.646395][   T73]      __sys_sendmsg+0xcd/0x170
[ 3594.646395][   T73]      do_syscall_64+0xc6/0x1e0
[ 3594.646395][   T73] 
[ 3594.648721][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3594.648721][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3594.648721][   T73]      ipv6_find_idev+0x102/0x170
[ 3594.648721][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3594.648721][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3594.648721][   T73]      netlink_rcv_skb+0x130/0x360
[ 3594.648721][   T73]      netlink_unicast+0x449/0x710
[ 3594.648721][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3594.648721][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3594.648721][   T73]      ___sys_sendmsg+0xee/0x170
[ 3594.648721][   T73]      __sys_sendmsg+0xcd/0x170
[ 3594.648721][   T73]      do_syscall_64+0xc6/0x1e0
[ 3594.648721][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3594.648721][   T73] 
[ 3594.650466][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3594.650466][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3594.650466][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3594.650466][   T73]      ipv6_find_idev+0x102/0x170
[ 3594.650466][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3594.650466][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3594.650466][   T73]      netlink_rcv_skb+0x130/0x360
[ 3594.650466][   T73]      netlink_unicast+0x449/0x710
[ 3594.650466][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3594.650466][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3594.650466][   T73]      ___sys_sendmsg+0xee/0x170
[ 3594.650466][   T73]      __sys_sendmsg+0xcd/0x170
[ 3594.650466][   T73]      do_syscall_64+0xc6/0x1e0
[ 3594.650466][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3594.650466][   T73] 
[ 3604.887786][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3604.888254][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3604.888254][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3604.888254][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3604.888254][   T73]      fib6_nh_init+0xa22/0x1580
[ 3604.888254][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3604.888254][   T73]      ip6_route_add+0x1c/0x140
[ 3604.888254][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3604.888254][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3604.888254][   T73]      netlink_rcv_skb+0x130/0x360
[ 3604.888254][   T73]      netlink_unicast+0x449/0x710
[ 3604.888254][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3604.888254][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3604.888254][   T73]      ___sys_sendmsg+0xee/0x170
[ 3604.888254][   T73]      __sys_sendmsg+0xcd/0x170
[ 3604.888254][   T73]      do_syscall_64+0xc6/0x1e0
[ 3604.888254][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3604.888254][   T73] 
[ 3604.890244][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3604.890244][   T73]      dst_init+0x84/0x4a0
[ 3604.890244][   T73]      dst_alloc+0x97/0x150
[ 3604.890244][   T73]      ip6_dst_alloc+0x23/0x90
[ 3604.890244][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3604.890244][   T73]      ip6_pol_route+0x56f/0x840
[ 3604.890244][   T73]      fib6_rule_lookup+0x456/0x630
[ 3604.890244][   T73]      ip6_route_input+0x59c/0xa50
[ 3604.890244][   T73]      ipv6_rcv+0x397/0x810
[ 3604.890244][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3604.890244][   T73]      process_backlog+0x101/0x620
[ 3604.890244][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3604.890244][   T73]      net_rx_action+0x495/0xbe0
[ 3604.890244][   T73]      __do_softirq+0x1b5/0x7f6
[ 3604.890244][   T73] 
[ 3604.892097][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3604.892097][   T73]      netdev_get_by_index+0x5e/0x80
[ 3604.892097][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3604.892097][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3604.892097][   T73]      ip6_route_add+0x1c/0x140
[ 3604.892097][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3604.892097][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3604.892097][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3604.892097][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3604.892097][   T73]      netlink_rcv_skb+0x130/0x360
[ 3604.892097][   T73]      netlink_unicast+0x449/0x710
[ 3604.892097][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3604.892097][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3604.892097][   T73]      ___sys_sendmsg+0xee/0x170
[ 3604.892097][   T73]      __sys_sendmsg+0xcd/0x170
[ 3604.892097][   T73]      do_syscall_64+0xc6/0x1e0
[ 3604.892097][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3604.892097][   T73] 
[ 3604.894154][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3604.894154][   T73]      netdev_get_by_index+0x5e/0x80
[ 3604.894154][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3604.894154][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3604.894154][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3604.894154][   T73]      ipv6_add_addr+0x411/0x2000
[ 3604.894154][   T73]      inet6_addr_add+0x30e/0xa40
[ 3604.894154][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3604.894154][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3604.894154][   T73]      netlink_rcv_skb+0x130/0x360
[ 3604.894154][   T73]      netlink_unicast+0x449/0x710
[ 3604.894154][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3604.894154][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3604.894154][   T73]      ___sys_sendmsg+0xee/0x170
[ 3604.894154][   T73]      __sys_sendmsg+0xcd/0x170
[ 3604.894154][   T73]      do_syscall_64+0xc6/0x1e0
[ 3604.894154][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3604.894154][   T73] 
[ 3604.896193][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3604.896193][   T73]      netdev_get_by_index+0x5e/0x80
[ 3604.896193][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3604.896193][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3604.896193][   T73]      ip6_route_add+0x1c/0x140
[ 3604.896193][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3604.896193][   T73]      addrconf_add_dev+0xe2/0x170
[ 3604.896193][   T73]      inet6_addr_add+0x12f/0xa40
[ 3604.896193][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3604.896193][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3604.896193][   T73]      netlink_rcv_skb+0x130/0x360
[ 3604.896193][   T73]      netlink_unicast+0x449/0x710
[ 3604.896193][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3604.896193][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3604.896193][   T73]      ___sys_sendmsg+0xee/0x170
[ 3604.896193][   T73]      __sys_sendmsg+0xcd/0x170
[ 3604.896193][   T73]      do_syscall_64+0xc6/0x1e0
[ 3604.896193][   T73] 
[ 3604.898242][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3604.898242][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3604.898242][   T73]      ipv6_find_idev+0x102/0x170
[ 3604.898242][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3604.898242][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3604.898242][   T73]      netlink_rcv_skb+0x130/0x360
[ 3604.898242][   T73]      netlink_unicast+0x449/0x710
[ 3604.898242][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3604.898242][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3604.898242][   T73]      ___sys_sendmsg+0xee/0x170
[ 3604.898242][   T73]      __sys_sendmsg+0xcd/0x170
[ 3604.898242][   T73]      do_syscall_64+0xc6/0x1e0
[ 3604.898242][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3604.898242][   T73] 
[ 3604.899828][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3604.899828][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3604.899828][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3604.899828][   T73]      ipv6_find_idev+0x102/0x170
[ 3604.899828][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3604.899828][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3604.899828][   T73]      netlink_rcv_skb+0x130/0x360
[ 3604.899828][   T73]      netlink_unicast+0x449/0x710
[ 3604.899828][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3604.899828][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3604.899828][   T73]      ___sys_sendmsg+0xee/0x170
[ 3604.899828][   T73]      __sys_sendmsg+0xcd/0x170
[ 3604.899828][   T73]      do_syscall_64+0xc6/0x1e0
[ 3604.899828][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3604.899828][   T73] 
[ 3604.901578][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3604.901878][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3604.901878][   T73]      netdev_get_by_index+0x5e/0x80
[ 3604.901878][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3604.901878][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3604.901878][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3604.901878][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3604.901878][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3604.901878][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3604.901878][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3604.901878][   T73]      addrconf_dad_begin+0x310/0x670
[ 3604.901878][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3604.901878][   T73]      process_one_work+0x84d/0x18a0
[ 3604.901878][   T73]      worker_thread+0x587/0xd30
[ 3604.901878][   T73]      kthread+0x28a/0x350
[ 3604.901878][   T73]      ret_from_fork+0x31/0x70
[ 3604.901878][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3604.901878][   T73] 
[ 3604.903847][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3604.903847][   T73]      netdev_get_by_index+0x5e/0x80
[ 3604.903847][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3604.903847][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3604.903847][   T73]      ip6_route_add+0x1c/0x140
[ 3604.903847][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3604.903847][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3604.903847][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3604.903847][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3604.903847][   T73]      netlink_rcv_skb+0x130/0x360
[ 3604.903847][   T73]      netlink_unicast+0x449/0x710
[ 3604.903847][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3604.903847][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3604.903847][   T73]      ___sys_sendmsg+0xee/0x170
[ 3604.903847][   T73]      __sys_sendmsg+0xcd/0x170
[ 3604.903847][   T73]      do_syscall_64+0xc6/0x1e0
[ 3604.903847][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3604.903847][   T73] 
[ 3604.905892][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3604.905892][   T73]      netdev_get_by_index+0x5e/0x80
[ 3604.905892][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3604.905892][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3604.905892][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3604.905892][   T73]      ipv6_add_addr+0x411/0x2000
[ 3604.905892][   T73]      inet6_addr_add+0x30e/0xa40
[ 3604.905892][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3604.905892][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3604.905892][   T73]      netlink_rcv_skb+0x130/0x360
[ 3604.905892][   T73]      netlink_unicast+0x449/0x710
[ 3604.905892][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3604.905892][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3604.905892][   T73]      ___sys_sendmsg+0xee/0x170
[ 3604.905892][   T73]      __sys_sendmsg+0xcd/0x170
[ 3604.905892][   T73]      do_syscall_64+0xc6/0x1e0
[ 3604.905892][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3604.905892][   T73] 
[ 3604.907960][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3604.907960][   T73]      netdev_get_by_index+0x5e/0x80
[ 3604.907960][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3604.907960][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3604.907960][   T73]      ip6_route_add+0x1c/0x140
[ 3604.907960][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3604.907960][   T73]      addrconf_add_dev+0xe2/0x170
[ 3604.907960][   T73]      inet6_addr_add+0x12f/0xa40
[ 3604.907960][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3604.907960][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3604.907960][   T73]      netlink_rcv_skb+0x130/0x360
[ 3604.907960][   T73]      netlink_unicast+0x449/0x710
[ 3604.907960][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3604.907960][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3604.907960][   T73]      ___sys_sendmsg+0xee/0x170
[ 3604.907960][   T73]      __sys_sendmsg+0xcd/0x170
[ 3604.907960][   T73]      do_syscall_64+0xc6/0x1e0
[ 3604.907960][   T73] 
[ 3604.909975][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3604.909975][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3604.909975][   T73]      ipv6_find_idev+0x102/0x170
[ 3604.909975][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3604.909975][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3604.909975][   T73]      netlink_rcv_skb+0x130/0x360
[ 3604.909975][   T73]      netlink_unicast+0x449/0x710
[ 3604.909975][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3604.909975][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3604.909975][   T73]      ___sys_sendmsg+0xee/0x170
[ 3604.909975][   T73]      __sys_sendmsg+0xcd/0x170
[ 3604.909975][   T73]      do_syscall_64+0xc6/0x1e0
[ 3604.909975][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3604.909975][   T73] 
[ 3604.911552][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3604.911552][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3604.911552][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3604.911552][   T73]      ipv6_find_idev+0x102/0x170
[ 3604.911552][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3604.911552][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3604.911552][   T73]      netlink_rcv_skb+0x130/0x360
[ 3604.911552][   T73]      netlink_unicast+0x449/0x710
[ 3604.911552][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3604.911552][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3604.911552][   T73]      ___sys_sendmsg+0xee/0x170
[ 3604.911552][   T73]      __sys_sendmsg+0xcd/0x170
[ 3604.911552][   T73]      do_syscall_64+0xc6/0x1e0
[ 3604.911552][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3604.911552][   T73] 
[ 3604.913294][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3604.913568][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3604.913568][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3604.913568][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3604.913568][   T73]      fib6_nh_init+0xa22/0x1580
[ 3604.913568][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3604.913568][   T73]      ip6_route_add+0x1c/0x140
[ 3604.913568][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3604.913568][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3604.913568][   T73]      netlink_rcv_skb+0x130/0x360
[ 3604.913568][   T73]      netlink_unicast+0x449/0x710
[ 3604.913568][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3604.913568][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3604.913568][   T73]      ___sys_sendmsg+0xee/0x170
[ 3604.913568][   T73]      __sys_sendmsg+0xcd/0x170
[ 3604.913568][   T73]      do_syscall_64+0xc6/0x1e0
[ 3604.913568][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3604.913568][   T73] 
[ 3604.915674][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3604.915674][   T73]      dst_init+0x84/0x4a0
[ 3604.915674][   T73]      dst_alloc+0x97/0x150
[ 3604.915674][   T73]      ip6_dst_alloc+0x23/0x90
[ 3604.915674][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3604.915674][   T73]      ip6_pol_route+0x56f/0x840
[ 3604.915674][   T73]      fib6_rule_lookup+0x456/0x630
[ 3604.915674][   T73]      ip6_route_input+0x59c/0xa50
[ 3604.915674][   T73]      ipv6_rcv+0x397/0x810
[ 3604.915674][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3604.915674][   T73]      process_backlog+0x101/0x620
[ 3604.915674][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3604.915674][   T73]      net_rx_action+0x495/0xbe0
[ 3604.915674][   T73]      __do_softirq+0x1b5/0x7f6
[ 3604.915674][   T73] 
[ 3604.917536][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3604.917536][   T73]      netdev_get_by_index+0x5e/0x80
[ 3604.917536][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3604.917536][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3604.917536][   T73]      ip6_route_add+0x1c/0x140
[ 3604.917536][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3604.917536][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3604.917536][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3604.917536][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3604.917536][   T73]      netlink_rcv_skb+0x130/0x360
[ 3604.917536][   T73]      netlink_unicast+0x449/0x710
[ 3604.917536][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3604.917536][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3604.917536][   T73]      ___sys_sendmsg+0xee/0x170
[ 3604.917536][   T73]      __sys_sendmsg+0xcd/0x170
[ 3604.917536][   T73]      do_syscall_64+0xc6/0x1e0
[ 3604.917536][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3604.917536][   T73] 
[ 3604.919859][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3604.919859][   T73]      netdev_get_by_index+0x5e/0x80
[ 3604.919859][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3604.919859][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3604.919859][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3604.919859][   T73]      ipv6_add_addr+0x411/0x2000
[ 3604.919859][   T73]      inet6_addr_add+0x30e/0xa40
[ 3604.919859][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3604.919859][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3604.919859][   T73]      netlink_rcv_skb+0x130/0x360
[ 3604.919859][   T73]      netlink_unicast+0x449/0x710
[ 3604.919859][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3604.919859][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3604.919859][   T73]      ___sys_sendmsg+0xee/0x170
[ 3604.919859][   T73]      __sys_sendmsg+0xcd/0x170
[ 3604.919859][   T73]      do_syscall_64+0xc6/0x1e0
[ 3604.919859][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3604.919859][   T73] 
[ 3604.922215][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3604.922215][   T73]      netdev_get_by_index+0x5e/0x80
[ 3604.922215][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3604.922215][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3604.922215][   T73]      ip6_route_add+0x1c/0x140
[ 3604.922215][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3604.922215][   T73]      addrconf_add_dev+0xe2/0x170
[ 3604.922215][   T73]      inet6_addr_add+0x12f/0xa40
[ 3604.922215][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3604.922215][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3604.922215][   T73]      netlink_rcv_skb+0x130/0x360
[ 3604.922215][   T73]      netlink_unicast+0x449/0x710
[ 3604.922215][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3604.922215][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3604.922215][   T73]      ___sys_sendmsg+0xee/0x170
[ 3604.922215][   T73]      __sys_sendmsg+0xcd/0x170
[ 3604.922215][   T73]      do_syscall_64+0xc6/0x1e0
[ 3604.922215][   T73] 
[ 3604.924414][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3604.924414][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3604.924414][   T73]      ipv6_find_idev+0x102/0x170
[ 3604.924414][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3604.924414][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3604.924414][   T73]      netlink_rcv_skb+0x130/0x360
[ 3604.924414][   T73]      netlink_unicast+0x449/0x710
[ 3604.924414][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3604.924414][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3604.924414][   T73]      ___sys_sendmsg+0xee/0x170
[ 3604.924414][   T73]      __sys_sendmsg+0xcd/0x170
[ 3604.924414][   T73]      do_syscall_64+0xc6/0x1e0
[ 3604.924414][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3604.924414][   T73] 
[ 3604.926169][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3604.926169][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3604.926169][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3604.926169][   T73]      ipv6_find_idev+0x102/0x170
[ 3604.926169][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3604.926169][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3604.926169][   T73]      netlink_rcv_skb+0x130/0x360
[ 3604.926169][   T73]      netlink_unicast+0x449/0x710
[ 3604.926169][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3604.926169][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3604.926169][   T73]      ___sys_sendmsg+0xee/0x170
[ 3604.926169][   T73]      __sys_sendmsg+0xcd/0x170
[ 3604.926169][   T73]      do_syscall_64+0xc6/0x1e0
[ 3604.926169][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3604.926169][   T73] 
[ 3604.928173][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3604.928461][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3604.928461][   T73]      netdev_get_by_index+0x5e/0x80
[ 3604.928461][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3604.928461][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3604.928461][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3604.928461][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3604.928461][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3604.928461][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3604.928461][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3604.928461][   T73]      addrconf_dad_begin+0x310/0x670
[ 3604.928461][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3604.928461][   T73]      process_one_work+0x84d/0x18a0
[ 3604.928461][   T73]      worker_thread+0x587/0xd30
[ 3604.928461][   T73]      kthread+0x28a/0x350
[ 3604.928461][   T73]      ret_from_fork+0x31/0x70
[ 3604.928461][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3604.928461][   T73] 
[ 3604.930673][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3604.930673][   T73]      netdev_get_by_index+0x5e/0x80
[ 3604.930673][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3604.930673][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3604.930673][   T73]      ip6_route_add+0x1c/0x140
[ 3604.930673][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3604.930673][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3604.930673][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3604.930673][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3604.930673][   T73]      netlink_rcv_skb+0x130/0x360
[ 3604.930673][   T73]      netlink_unicast+0x449/0x710
[ 3604.930673][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3604.930673][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3604.930673][   T73]      ___sys_sendmsg+0xee/0x170
[ 3604.930673][   T73]      __sys_sendmsg+0xcd/0x170
[ 3604.930673][   T73]      do_syscall_64+0xc6/0x1e0
[ 3604.930673][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3604.930673][   T73] 
[ 3604.933033][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3604.933033][   T73]      netdev_get_by_index+0x5e/0x80
[ 3604.933033][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3604.933033][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3604.933033][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3604.933033][   T73]      ipv6_add_addr+0x411/0x2000
[ 3604.933033][   T73]      inet6_addr_add+0x30e/0xa40
[ 3604.933033][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3604.933033][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3604.933033][   T73]      netlink_rcv_skb+0x130/0x360
[ 3604.933033][   T73]      netlink_unicast+0x449/0x710
[ 3604.933033][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3604.933033][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3604.933033][   T73]      ___sys_sendmsg+0xee/0x170
[ 3604.933033][   T73]      __sys_sendmsg+0xcd/0x170
[ 3604.933033][   T73]      do_syscall_64+0xc6/0x1e0
[ 3604.933033][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3604.933033][   T73] 
[ 3604.935285][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3604.935285][   T73]      netdev_get_by_index+0x5e/0x80
[ 3604.935285][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3604.935285][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3604.935285][   T73]      ip6_route_add+0x1c/0x140
[ 3604.935285][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3604.935285][   T73]      addrconf_add_dev+0xe2/0x170
[ 3604.935285][   T73]      inet6_addr_add+0x12f/0xa40
[ 3604.935285][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3604.935285][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3604.935285][   T73]      netlink_rcv_skb+0x130/0x360
[ 3604.935285][   T73]      netlink_unicast+0x449/0x710
[ 3604.935285][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3604.935285][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3604.935285][   T73]      ___sys_sendmsg+0xee/0x170
[ 3604.935285][   T73]      __sys_sendmsg+0xcd/0x170
[ 3604.935285][   T73]      do_syscall_64+0xc6/0x1e0
[ 3604.935285][   T73] 
[ 3604.937529][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3604.937529][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3604.937529][   T73]      ipv6_find_idev+0x102/0x170
[ 3604.937529][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3604.937529][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3604.937529][   T73]      netlink_rcv_skb+0x130/0x360
[ 3604.937529][   T73]      netlink_unicast+0x449/0x710
[ 3604.937529][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3604.937529][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3604.937529][   T73]      ___sys_sendmsg+0xee/0x170
[ 3604.937529][   T73]      __sys_sendmsg+0xcd/0x170
[ 3604.937529][   T73]      do_syscall_64+0xc6/0x1e0
[ 3604.937529][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3604.937529][   T73] 
[ 3604.939349][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3604.939349][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3604.939349][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3604.939349][   T73]      ipv6_find_idev+0x102/0x170
[ 3604.939349][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3604.939349][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3604.939349][   T73]      netlink_rcv_skb+0x130/0x360
[ 3604.939349][   T73]      netlink_unicast+0x449/0x710
[ 3604.939349][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3604.939349][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3604.939349][   T73]      ___sys_sendmsg+0xee/0x170
[ 3604.939349][   T73]      __sys_sendmsg+0xcd/0x170
[ 3604.939349][   T73]      do_syscall_64+0xc6/0x1e0
[ 3604.939349][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3604.939349][   T73] 
[ 3615.095744][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3615.096282][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3615.096282][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3615.096282][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3615.096282][   T73]      fib6_nh_init+0xa22/0x1580
[ 3615.096282][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3615.096282][   T73]      ip6_route_add+0x1c/0x140
[ 3615.096282][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3615.096282][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3615.096282][   T73]      netlink_rcv_skb+0x130/0x360
[ 3615.096282][   T73]      netlink_unicast+0x449/0x710
[ 3615.096282][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3615.096282][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3615.096282][   T73]      ___sys_sendmsg+0xee/0x170
[ 3615.096282][   T73]      __sys_sendmsg+0xcd/0x170
[ 3615.096282][   T73]      do_syscall_64+0xc6/0x1e0
[ 3615.096282][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3615.096282][   T73] 
[ 3615.098260][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3615.098260][   T73]      dst_init+0x84/0x4a0
[ 3615.098260][   T73]      dst_alloc+0x97/0x150
[ 3615.098260][   T73]      ip6_dst_alloc+0x23/0x90
[ 3615.098260][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3615.098260][   T73]      ip6_pol_route+0x56f/0x840
[ 3615.098260][   T73]      fib6_rule_lookup+0x456/0x630
[ 3615.098260][   T73]      ip6_route_input+0x59c/0xa50
[ 3615.098260][   T73]      ipv6_rcv+0x397/0x810
[ 3615.098260][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3615.098260][   T73]      process_backlog+0x101/0x620
[ 3615.098260][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3615.098260][   T73]      net_rx_action+0x495/0xbe0
[ 3615.098260][   T73]      __do_softirq+0x1b5/0x7f6
[ 3615.098260][   T73] 
[ 3615.099934][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3615.099934][   T73]      netdev_get_by_index+0x5e/0x80
[ 3615.099934][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3615.099934][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3615.099934][   T73]      ip6_route_add+0x1c/0x140
[ 3615.099934][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3615.099934][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3615.099934][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3615.099934][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3615.099934][   T73]      netlink_rcv_skb+0x130/0x360
[ 3615.099934][   T73]      netlink_unicast+0x449/0x710
[ 3615.099934][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3615.099934][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3615.099934][   T73]      ___sys_sendmsg+0xee/0x170
[ 3615.099934][   T73]      __sys_sendmsg+0xcd/0x170
[ 3615.099934][   T73]      do_syscall_64+0xc6/0x1e0
[ 3615.099934][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3615.099934][   T73] 
[ 3615.101983][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3615.101983][   T73]      netdev_get_by_index+0x5e/0x80
[ 3615.101983][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3615.101983][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3615.101983][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3615.101983][   T73]      ipv6_add_addr+0x411/0x2000
[ 3615.101983][   T73]      inet6_addr_add+0x30e/0xa40
[ 3615.101983][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3615.101983][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3615.101983][   T73]      netlink_rcv_skb+0x130/0x360
[ 3615.101983][   T73]      netlink_unicast+0x449/0x710
[ 3615.101983][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3615.101983][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3615.101983][   T73]      ___sys_sendmsg+0xee/0x170
[ 3615.101983][   T73]      __sys_sendmsg+0xcd/0x170
[ 3615.101983][   T73]      do_syscall_64+0xc6/0x1e0
[ 3615.101983][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3615.101983][   T73] 
[ 3615.104021][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3615.104021][   T73]      netdev_get_by_index+0x5e/0x80
[ 3615.104021][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3615.104021][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3615.104021][   T73]      ip6_route_add+0x1c/0x140
[ 3615.104021][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3615.104021][   T73]      addrconf_add_dev+0xe2/0x170
[ 3615.104021][   T73]      inet6_addr_add+0x12f/0xa40
[ 3615.104021][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3615.104021][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3615.104021][   T73]      netlink_rcv_skb+0x130/0x360
[ 3615.104021][   T73]      netlink_unicast+0x449/0x710
[ 3615.104021][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3615.104021][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3615.104021][   T73]      ___sys_sendmsg+0xee/0x170
[ 3615.104021][   T73]      __sys_sendmsg+0xcd/0x170
[ 3615.104021][   T73]      do_syscall_64+0xc6/0x1e0
[ 3615.104021][   T73] 
[ 3615.106043][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3615.106043][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3615.106043][   T73]      ipv6_find_idev+0x102/0x170
[ 3615.106043][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3615.106043][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3615.106043][   T73]      netlink_rcv_skb+0x130/0x360
[ 3615.106043][   T73]      netlink_unicast+0x449/0x710
[ 3615.106043][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3615.106043][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3615.106043][   T73]      ___sys_sendmsg+0xee/0x170
[ 3615.106043][   T73]      __sys_sendmsg+0xcd/0x170
[ 3615.106043][   T73]      do_syscall_64+0xc6/0x1e0
[ 3615.106043][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3615.106043][   T73] 
[ 3615.107613][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3615.107613][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3615.107613][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3615.107613][   T73]      ipv6_find_idev+0x102/0x170
[ 3615.107613][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3615.107613][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3615.107613][   T73]      netlink_rcv_skb+0x130/0x360
[ 3615.107613][   T73]      netlink_unicast+0x449/0x710
[ 3615.107613][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3615.107613][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3615.107613][   T73]      ___sys_sendmsg+0xee/0x170
[ 3615.107613][   T73]      __sys_sendmsg+0xcd/0x170
[ 3615.107613][   T73]      do_syscall_64+0xc6/0x1e0
[ 3615.107613][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3615.107613][   T73] 
[ 3615.109373][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3615.109663][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3615.109663][   T73]      netdev_get_by_index+0x5e/0x80
[ 3615.109663][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3615.109663][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3615.109663][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3615.109663][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3615.109663][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3615.109663][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3615.109663][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3615.109663][   T73]      addrconf_dad_begin+0x310/0x670
[ 3615.109663][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3615.109663][   T73]      process_one_work+0x84d/0x18a0
[ 3615.109663][   T73]      worker_thread+0x587/0xd30
[ 3615.109663][   T73]      kthread+0x28a/0x350
[ 3615.109663][   T73]      ret_from_fork+0x31/0x70
[ 3615.109663][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3615.109663][   T73] 
[ 3615.111624][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3615.111624][   T73]      netdev_get_by_index+0x5e/0x80
[ 3615.111624][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3615.111624][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3615.111624][   T73]      ip6_route_add+0x1c/0x140
[ 3615.111624][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3615.111624][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3615.111624][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3615.111624][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3615.111624][   T73]      netlink_rcv_skb+0x130/0x360
[ 3615.111624][   T73]      netlink_unicast+0x449/0x710
[ 3615.111624][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3615.111624][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3615.111624][   T73]      ___sys_sendmsg+0xee/0x170
[ 3615.111624][   T73]      __sys_sendmsg+0xcd/0x170
[ 3615.111624][   T73]      do_syscall_64+0xc6/0x1e0
[ 3615.111624][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3615.111624][   T73] 
[ 3615.113678][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3615.113678][   T73]      netdev_get_by_index+0x5e/0x80
[ 3615.113678][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3615.113678][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3615.113678][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3615.113678][   T73]      ipv6_add_addr+0x411/0x2000
[ 3615.113678][   T73]      inet6_addr_add+0x30e/0xa40
[ 3615.113678][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3615.113678][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3615.113678][   T73]      netlink_rcv_skb+0x130/0x360
[ 3615.113678][   T73]      netlink_unicast+0x449/0x710
[ 3615.113678][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3615.113678][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3615.113678][   T73]      ___sys_sendmsg+0xee/0x170
[ 3615.113678][   T73]      __sys_sendmsg+0xcd/0x170
[ 3615.113678][   T73]      do_syscall_64+0xc6/0x1e0
[ 3615.113678][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3615.113678][   T73] 
[ 3615.115710][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3615.115710][   T73]      netdev_get_by_index+0x5e/0x80
[ 3615.115710][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3615.115710][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3615.115710][   T73]      ip6_route_add+0x1c/0x140
[ 3615.115710][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3615.115710][   T73]      addrconf_add_dev+0xe2/0x170
[ 3615.115710][   T73]      inet6_addr_add+0x12f/0xa40
[ 3615.115710][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3615.115710][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3615.115710][   T73]      netlink_rcv_skb+0x130/0x360
[ 3615.115710][   T73]      netlink_unicast+0x449/0x710
[ 3615.115710][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3615.115710][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3615.115710][   T73]      ___sys_sendmsg+0xee/0x170
[ 3615.115710][   T73]      __sys_sendmsg+0xcd/0x170
[ 3615.115710][   T73]      do_syscall_64+0xc6/0x1e0
[ 3615.115710][   T73] 
[ 3615.117716][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3615.117716][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3615.117716][   T73]      ipv6_find_idev+0x102/0x170
[ 3615.117716][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3615.117716][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3615.117716][   T73]      netlink_rcv_skb+0x130/0x360
[ 3615.117716][   T73]      netlink_unicast+0x449/0x710
[ 3615.117716][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3615.117716][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3615.117716][   T73]      ___sys_sendmsg+0xee/0x170
[ 3615.117716][   T73]      __sys_sendmsg+0xcd/0x170
[ 3615.117716][   T73]      do_syscall_64+0xc6/0x1e0
[ 3615.117716][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3615.117716][   T73] 
[ 3615.119313][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3615.119313][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3615.119313][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3615.119313][   T73]      ipv6_find_idev+0x102/0x170
[ 3615.119313][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3615.119313][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3615.119313][   T73]      netlink_rcv_skb+0x130/0x360
[ 3615.119313][   T73]      netlink_unicast+0x449/0x710
[ 3615.119313][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3615.119313][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3615.119313][   T73]      ___sys_sendmsg+0xee/0x170
[ 3615.119313][   T73]      __sys_sendmsg+0xcd/0x170
[ 3615.119313][   T73]      do_syscall_64+0xc6/0x1e0
[ 3615.119313][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3615.119313][   T73] 
[ 3615.121047][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3615.121322][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3615.121322][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3615.121322][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3615.121322][   T73]      fib6_nh_init+0xa22/0x1580
[ 3615.121322][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3615.121322][   T73]      ip6_route_add+0x1c/0x140
[ 3615.121322][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3615.121322][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3615.121322][   T73]      netlink_rcv_skb+0x130/0x360
[ 3615.121322][   T73]      netlink_unicast+0x449/0x710
[ 3615.121322][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3615.121322][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3615.121322][   T73]      ___sys_sendmsg+0xee/0x170
[ 3615.121322][   T73]      __sys_sendmsg+0xcd/0x170
[ 3615.121322][   T73]      do_syscall_64+0xc6/0x1e0
[ 3615.121322][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3615.121322][   T73] 
[ 3615.123434][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3615.123434][   T73]      dst_init+0x84/0x4a0
[ 3615.123434][   T73]      dst_alloc+0x97/0x150
[ 3615.123434][   T73]      ip6_dst_alloc+0x23/0x90
[ 3615.123434][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3615.123434][   T73]      ip6_pol_route+0x56f/0x840
[ 3615.123434][   T73]      fib6_rule_lookup+0x456/0x630
[ 3615.123434][   T73]      ip6_route_input+0x59c/0xa50
[ 3615.123434][   T73]      ipv6_rcv+0x397/0x810
[ 3615.123434][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3615.123434][   T73]      process_backlog+0x101/0x620
[ 3615.123434][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3615.123434][   T73]      net_rx_action+0x495/0xbe0
[ 3615.123434][   T73]      __do_softirq+0x1b5/0x7f6
[ 3615.123434][   T73] 
[ 3615.125349][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3615.125349][   T73]      netdev_get_by_index+0x5e/0x80
[ 3615.125349][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3615.125349][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3615.125349][   T73]      ip6_route_add+0x1c/0x140
[ 3615.125349][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3615.125349][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3615.125349][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3615.125349][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3615.125349][   T73]      netlink_rcv_skb+0x130/0x360
[ 3615.125349][   T73]      netlink_unicast+0x449/0x710
[ 3615.125349][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3615.125349][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3615.125349][   T73]      ___sys_sendmsg+0xee/0x170
[ 3615.125349][   T73]      __sys_sendmsg+0xcd/0x170
[ 3615.125349][   T73]      do_syscall_64+0xc6/0x1e0
[ 3615.125349][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3615.125349][   T73] 
[ 3615.127632][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3615.127632][   T73]      netdev_get_by_index+0x5e/0x80
[ 3615.127632][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3615.127632][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3615.127632][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3615.127632][   T73]      ipv6_add_addr+0x411/0x2000
[ 3615.127632][   T73]      inet6_addr_add+0x30e/0xa40
[ 3615.127632][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3615.127632][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3615.127632][   T73]      netlink_rcv_skb+0x130/0x360
[ 3615.127632][   T73]      netlink_unicast+0x449/0x710
[ 3615.127632][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3615.127632][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3615.127632][   T73]      ___sys_sendmsg+0xee/0x170
[ 3615.127632][   T73]      __sys_sendmsg+0xcd/0x170
[ 3615.127632][   T73]      do_syscall_64+0xc6/0x1e0
[ 3615.127632][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3615.127632][   T73] 
[ 3615.129945][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3615.129945][   T73]      netdev_get_by_index+0x5e/0x80
[ 3615.129945][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3615.129945][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3615.129945][   T73]      ip6_route_add+0x1c/0x140
[ 3615.129945][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3615.129945][   T73]      addrconf_add_dev+0xe2/0x170
[ 3615.129945][   T73]      inet6_addr_add+0x12f/0xa40
[ 3615.129945][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3615.129945][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3615.129945][   T73]      netlink_rcv_skb+0x130/0x360
[ 3615.129945][   T73]      netlink_unicast+0x449/0x710
[ 3615.129945][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3615.129945][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3615.129945][   T73]      ___sys_sendmsg+0xee/0x170
[ 3615.129945][   T73]      __sys_sendmsg+0xcd/0x170
[ 3615.129945][   T73]      do_syscall_64+0xc6/0x1e0
[ 3615.129945][   T73] 
[ 3615.132133][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3615.132133][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3615.132133][   T73]      ipv6_find_idev+0x102/0x170
[ 3615.132133][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3615.132133][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3615.132133][   T73]      netlink_rcv_skb+0x130/0x360
[ 3615.132133][   T73]      netlink_unicast+0x449/0x710
[ 3615.132133][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3615.132133][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3615.132133][   T73]      ___sys_sendmsg+0xee/0x170
[ 3615.132133][   T73]      __sys_sendmsg+0xcd/0x170
[ 3615.132133][   T73]      do_syscall_64+0xc6/0x1e0
[ 3615.132133][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3615.132133][   T73] 
[ 3615.133947][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3615.133947][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3615.133947][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3615.133947][   T73]      ipv6_find_idev+0x102/0x170
[ 3615.133947][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3615.133947][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3615.133947][   T73]      netlink_rcv_skb+0x130/0x360
[ 3615.133947][   T73]      netlink_unicast+0x449/0x710
[ 3615.133947][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3615.133947][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3615.133947][   T73]      ___sys_sendmsg+0xee/0x170
[ 3615.133947][   T73]      __sys_sendmsg+0xcd/0x170
[ 3615.133947][   T73]      do_syscall_64+0xc6/0x1e0
[ 3615.133947][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3615.133947][   T73] 
[ 3615.135926][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3615.136219][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3615.136219][   T73]      netdev_get_by_index+0x5e/0x80
[ 3615.136219][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3615.136219][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3615.136219][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3615.136219][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3615.136219][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3615.136219][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3615.136219][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3615.136219][   T73]      addrconf_dad_begin+0x310/0x670
[ 3615.136219][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3615.136219][   T73]      process_one_work+0x84d/0x18a0
[ 3615.136219][   T73]      worker_thread+0x587/0xd30
[ 3615.136219][   T73]      kthread+0x28a/0x350
[ 3615.136219][   T73]      ret_from_fork+0x31/0x70
[ 3615.136219][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3615.136219][   T73] 
[ 3615.138431][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3615.138431][   T73]      netdev_get_by_index+0x5e/0x80
[ 3615.138431][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3615.138431][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3615.138431][   T73]      ip6_route_add+0x1c/0x140
[ 3615.138431][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3615.138431][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3615.138431][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3615.138431][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3615.138431][   T73]      netlink_rcv_skb+0x130/0x360
[ 3615.138431][   T73]      netlink_unicast+0x449/0x710
[ 3615.138431][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3615.138431][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3615.138431][   T73]      ___sys_sendmsg+0xee/0x170
[ 3615.138431][   T73]      __sys_sendmsg+0xcd/0x170
[ 3615.138431][   T73]      do_syscall_64+0xc6/0x1e0
[ 3615.138431][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3615.138431][   T73] 
[ 3615.140711][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3615.140711][   T73]      netdev_get_by_index+0x5e/0x80
[ 3615.140711][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3615.140711][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3615.140711][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3615.140711][   T73]      ipv6_add_addr+0x411/0x2000
[ 3615.140711][   T73]      inet6_addr_add+0x30e/0xa40
[ 3615.140711][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3615.140711][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3615.140711][   T73]      netlink_rcv_skb+0x130/0x360
[ 3615.140711][   T73]      netlink_unicast+0x449/0x710
[ 3615.140711][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3615.140711][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3615.140711][   T73]      ___sys_sendmsg+0xee/0x170
[ 3615.140711][   T73]      __sys_sendmsg+0xcd/0x170
[ 3615.140711][   T73]      do_syscall_64+0xc6/0x1e0
[ 3615.140711][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3615.140711][   T73] 
[ 3615.142945][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3615.142945][   T73]      netdev_get_by_index+0x5e/0x80
[ 3615.142945][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3615.142945][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3615.142945][   T73]      ip6_route_add+0x1c/0x140
[ 3615.142945][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3615.142945][   T73]      addrconf_add_dev+0xe2/0x170
[ 3615.142945][   T73]      inet6_addr_add+0x12f/0xa40
[ 3615.142945][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3615.142945][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3615.142945][   T73]      netlink_rcv_skb+0x130/0x360
[ 3615.142945][   T73]      netlink_unicast+0x449/0x710
[ 3615.142945][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3615.142945][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3615.142945][   T73]      ___sys_sendmsg+0xee/0x170
[ 3615.142945][   T73]      __sys_sendmsg+0xcd/0x170
[ 3615.142945][   T73]      do_syscall_64+0xc6/0x1e0
[ 3615.142945][   T73] 
[ 3615.145249][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3615.145249][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3615.145249][   T73]      ipv6_find_idev+0x102/0x170
[ 3615.145249][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3615.145249][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3615.145249][   T73]      netlink_rcv_skb+0x130/0x360
[ 3615.145249][   T73]      netlink_unicast+0x449/0x710
[ 3615.145249][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3615.145249][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3615.145249][   T73]      ___sys_sendmsg+0xee/0x170
[ 3615.145249][   T73]      __sys_sendmsg+0xcd/0x170
[ 3615.145249][   T73]      do_syscall_64+0xc6/0x1e0
[ 3615.145249][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3615.145249][   T73] 
[ 3615.147012][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3615.147012][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3615.147012][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3615.147012][   T73]      ipv6_find_idev+0x102/0x170
[ 3615.147012][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3615.147012][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3615.147012][   T73]      netlink_rcv_skb+0x130/0x360
[ 3615.147012][   T73]      netlink_unicast+0x449/0x710
[ 3615.147012][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3615.147012][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3615.147012][   T73]      ___sys_sendmsg+0xee/0x170
[ 3615.147012][   T73]      __sys_sendmsg+0xcd/0x170
[ 3615.147012][   T73]      do_syscall_64+0xc6/0x1e0
[ 3615.147012][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3615.147012][   T73] 
[ 3625.399753][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3625.400240][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3625.400240][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3625.400240][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3625.400240][   T73]      fib6_nh_init+0xa22/0x1580
[ 3625.400240][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3625.400240][   T73]      ip6_route_add+0x1c/0x140
[ 3625.400240][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3625.400240][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3625.400240][   T73]      netlink_rcv_skb+0x130/0x360
[ 3625.400240][   T73]      netlink_unicast+0x449/0x710
[ 3625.400240][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3625.400240][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3625.400240][   T73]      ___sys_sendmsg+0xee/0x170
[ 3625.400240][   T73]      __sys_sendmsg+0xcd/0x170
[ 3625.400240][   T73]      do_syscall_64+0xc6/0x1e0
[ 3625.400240][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3625.400240][   T73] 
[ 3625.402168][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3625.402168][   T73]      dst_init+0x84/0x4a0
[ 3625.402168][   T73]      dst_alloc+0x97/0x150
[ 3625.402168][   T73]      ip6_dst_alloc+0x23/0x90
[ 3625.402168][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3625.402168][   T73]      ip6_pol_route+0x56f/0x840
[ 3625.402168][   T73]      fib6_rule_lookup+0x456/0x630
[ 3625.402168][   T73]      ip6_route_input+0x59c/0xa50
[ 3625.402168][   T73]      ipv6_rcv+0x397/0x810
[ 3625.402168][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3625.402168][   T73]      process_backlog+0x101/0x620
[ 3625.402168][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3625.402168][   T73]      net_rx_action+0x495/0xbe0
[ 3625.402168][   T73]      __do_softirq+0x1b5/0x7f6
[ 3625.402168][   T73] 
[ 3625.403841][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3625.403841][   T73]      netdev_get_by_index+0x5e/0x80
[ 3625.403841][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3625.403841][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3625.403841][   T73]      ip6_route_add+0x1c/0x140
[ 3625.403841][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3625.403841][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3625.403841][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3625.403841][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3625.403841][   T73]      netlink_rcv_skb+0x130/0x360
[ 3625.403841][   T73]      netlink_unicast+0x449/0x710
[ 3625.403841][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3625.403841][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3625.403841][   T73]      ___sys_sendmsg+0xee/0x170
[ 3625.403841][   T73]      __sys_sendmsg+0xcd/0x170
[ 3625.403841][   T73]      do_syscall_64+0xc6/0x1e0
[ 3625.403841][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3625.403841][   T73] 
[ 3625.405885][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3625.405885][   T73]      netdev_get_by_index+0x5e/0x80
[ 3625.405885][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3625.405885][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3625.405885][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3625.405885][   T73]      ipv6_add_addr+0x411/0x2000
[ 3625.405885][   T73]      inet6_addr_add+0x30e/0xa40
[ 3625.405885][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3625.405885][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3625.405885][   T73]      netlink_rcv_skb+0x130/0x360
[ 3625.405885][   T73]      netlink_unicast+0x449/0x710
[ 3625.405885][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3625.405885][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3625.405885][   T73]      ___sys_sendmsg+0xee/0x170
[ 3625.405885][   T73]      __sys_sendmsg+0xcd/0x170
[ 3625.405885][   T73]      do_syscall_64+0xc6/0x1e0
[ 3625.405885][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3625.405885][   T73] 
[ 3625.407962][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3625.407962][   T73]      netdev_get_by_index+0x5e/0x80
[ 3625.407962][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3625.407962][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3625.407962][   T73]      ip6_route_add+0x1c/0x140
[ 3625.407962][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3625.407962][   T73]      addrconf_add_dev+0xe2/0x170
[ 3625.407962][   T73]      inet6_addr_add+0x12f/0xa40
[ 3625.407962][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3625.407962][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3625.407962][   T73]      netlink_rcv_skb+0x130/0x360
[ 3625.407962][   T73]      netlink_unicast+0x449/0x710
[ 3625.407962][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3625.407962][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3625.407962][   T73]      ___sys_sendmsg+0xee/0x170
[ 3625.407962][   T73]      __sys_sendmsg+0xcd/0x170
[ 3625.407962][   T73]      do_syscall_64+0xc6/0x1e0
[ 3625.407962][   T73] 
[ 3625.409963][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3625.409963][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3625.409963][   T73]      ipv6_find_idev+0x102/0x170
[ 3625.409963][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3625.409963][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3625.409963][   T73]      netlink_rcv_skb+0x130/0x360
[ 3625.409963][   T73]      netlink_unicast+0x449/0x710
[ 3625.409963][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3625.409963][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3625.409963][   T73]      ___sys_sendmsg+0xee/0x170
[ 3625.409963][   T73]      __sys_sendmsg+0xcd/0x170
[ 3625.409963][   T73]      do_syscall_64+0xc6/0x1e0
[ 3625.409963][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3625.409963][   T73] 
[ 3625.411535][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3625.411535][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3625.411535][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3625.411535][   T73]      ipv6_find_idev+0x102/0x170
[ 3625.411535][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3625.411535][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3625.411535][   T73]      netlink_rcv_skb+0x130/0x360
[ 3625.411535][   T73]      netlink_unicast+0x449/0x710
[ 3625.411535][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3625.411535][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3625.411535][   T73]      ___sys_sendmsg+0xee/0x170
[ 3625.411535][   T73]      __sys_sendmsg+0xcd/0x170
[ 3625.411535][   T73]      do_syscall_64+0xc6/0x1e0
[ 3625.411535][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3625.411535][   T73] 
[ 3625.413834][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3625.414131][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3625.414131][   T73]      netdev_get_by_index+0x5e/0x80
[ 3625.414131][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3625.414131][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3625.414131][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3625.414131][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3625.414131][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3625.414131][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3625.414131][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3625.414131][   T73]      addrconf_dad_begin+0x310/0x670
[ 3625.414131][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3625.414131][   T73]      process_one_work+0x84d/0x18a0
[ 3625.414131][   T73]      worker_thread+0x587/0xd30
[ 3625.414131][   T73]      kthread+0x28a/0x350
[ 3625.414131][   T73]      ret_from_fork+0x31/0x70
[ 3625.414131][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3625.414131][   T73] 
[ 3625.416085][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3625.416085][   T73]      netdev_get_by_index+0x5e/0x80
[ 3625.416085][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3625.416085][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3625.416085][   T73]      ip6_route_add+0x1c/0x140
[ 3625.416085][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3625.416085][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3625.416085][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3625.416085][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3625.416085][   T73]      netlink_rcv_skb+0x130/0x360
[ 3625.416085][   T73]      netlink_unicast+0x449/0x710
[ 3625.416085][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3625.416085][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3625.416085][   T73]      ___sys_sendmsg+0xee/0x170
[ 3625.416085][   T73]      __sys_sendmsg+0xcd/0x170
[ 3625.416085][   T73]      do_syscall_64+0xc6/0x1e0
[ 3625.416085][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3625.416085][   T73] 
[ 3625.418256][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3625.418256][   T73]      netdev_get_by_index+0x5e/0x80
[ 3625.418256][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3625.418256][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3625.418256][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3625.418256][   T73]      ipv6_add_addr+0x411/0x2000
[ 3625.418256][   T73]      inet6_addr_add+0x30e/0xa40
[ 3625.418256][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3625.418256][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3625.418256][   T73]      netlink_rcv_skb+0x130/0x360
[ 3625.418256][   T73]      netlink_unicast+0x449/0x710
[ 3625.418256][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3625.418256][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3625.418256][   T73]      ___sys_sendmsg+0xee/0x170
[ 3625.418256][   T73]      __sys_sendmsg+0xcd/0x170
[ 3625.418256][   T73]      do_syscall_64+0xc6/0x1e0
[ 3625.418256][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3625.418256][   T73] 
[ 3625.420301][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3625.420301][   T73]      netdev_get_by_index+0x5e/0x80
[ 3625.420301][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3625.420301][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3625.420301][   T73]      ip6_route_add+0x1c/0x140
[ 3625.420301][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3625.420301][   T73]      addrconf_add_dev+0xe2/0x170
[ 3625.420301][   T73]      inet6_addr_add+0x12f/0xa40
[ 3625.420301][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3625.420301][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3625.420301][   T73]      netlink_rcv_skb+0x130/0x360
[ 3625.420301][   T73]      netlink_unicast+0x449/0x710
[ 3625.420301][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3625.420301][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3625.420301][   T73]      ___sys_sendmsg+0xee/0x170
[ 3625.420301][   T73]      __sys_sendmsg+0xcd/0x170
[ 3625.420301][   T73]      do_syscall_64+0xc6/0x1e0
[ 3625.420301][   T73] 
[ 3625.422320][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3625.422320][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3625.422320][   T73]      ipv6_find_idev+0x102/0x170
[ 3625.422320][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3625.422320][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3625.422320][   T73]      netlink_rcv_skb+0x130/0x360
[ 3625.422320][   T73]      netlink_unicast+0x449/0x710
[ 3625.422320][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3625.422320][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3625.422320][   T73]      ___sys_sendmsg+0xee/0x170
[ 3625.422320][   T73]      __sys_sendmsg+0xcd/0x170
[ 3625.422320][   T73]      do_syscall_64+0xc6/0x1e0
[ 3625.422320][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3625.422320][   T73] 
[ 3625.423908][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3625.423908][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3625.423908][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3625.423908][   T73]      ipv6_find_idev+0x102/0x170
[ 3625.423908][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3625.423908][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3625.423908][   T73]      netlink_rcv_skb+0x130/0x360
[ 3625.423908][   T73]      netlink_unicast+0x449/0x710
[ 3625.423908][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3625.423908][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3625.423908][   T73]      ___sys_sendmsg+0xee/0x170
[ 3625.423908][   T73]      __sys_sendmsg+0xcd/0x170
[ 3625.423908][   T73]      do_syscall_64+0xc6/0x1e0
[ 3625.423908][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3625.423908][   T73] 
[ 3625.425656][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3625.428730][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3625.428730][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3625.428730][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3625.428730][   T73]      fib6_nh_init+0xa22/0x1580
[ 3625.428730][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3625.428730][   T73]      ip6_route_add+0x1c/0x140
[ 3625.428730][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3625.428730][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3625.428730][   T73]      netlink_rcv_skb+0x130/0x360
[ 3625.428730][   T73]      netlink_unicast+0x449/0x710
[ 3625.428730][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3625.428730][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3625.428730][   T73]      ___sys_sendmsg+0xee/0x170
[ 3625.428730][   T73]      __sys_sendmsg+0xcd/0x170
[ 3625.428730][   T73]      do_syscall_64+0xc6/0x1e0
[ 3625.428730][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3625.428730][   T73] 
[ 3625.430887][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3625.430887][   T73]      dst_init+0x84/0x4a0
[ 3625.430887][   T73]      dst_alloc+0x97/0x150
[ 3625.430887][   T73]      ip6_dst_alloc+0x23/0x90
[ 3625.430887][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3625.430887][   T73]      ip6_pol_route+0x56f/0x840
[ 3625.430887][   T73]      fib6_rule_lookup+0x456/0x630
[ 3625.430887][   T73]      ip6_route_input+0x59c/0xa50
[ 3625.430887][   T73]      ipv6_rcv+0x397/0x810
[ 3625.430887][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3625.430887][   T73]      process_backlog+0x101/0x620
[ 3625.430887][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3625.430887][   T73]      net_rx_action+0x495/0xbe0
[ 3625.430887][   T73]      __do_softirq+0x1b5/0x7f6
[ 3625.430887][   T73] 
[ 3625.432754][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3625.432754][   T73]      netdev_get_by_index+0x5e/0x80
[ 3625.432754][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3625.432754][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3625.432754][   T73]      ip6_route_add+0x1c/0x140
[ 3625.432754][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3625.432754][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3625.432754][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3625.432754][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3625.432754][   T73]      netlink_rcv_skb+0x130/0x360
[ 3625.432754][   T73]      netlink_unicast+0x449/0x710
[ 3625.432754][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3625.432754][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3625.432754][   T73]      ___sys_sendmsg+0xee/0x170
[ 3625.432754][   T73]      __sys_sendmsg+0xcd/0x170
[ 3625.432754][   T73]      do_syscall_64+0xc6/0x1e0
[ 3625.432754][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3625.432754][   T73] 
[ 3625.435050][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3625.435050][   T73]      netdev_get_by_index+0x5e/0x80
[ 3625.435050][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3625.435050][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3625.435050][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3625.435050][   T73]      ipv6_add_addr+0x411/0x2000
[ 3625.435050][   T73]      inet6_addr_add+0x30e/0xa40
[ 3625.435050][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3625.435050][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3625.435050][   T73]      netlink_rcv_skb+0x130/0x360
[ 3625.435050][   T73]      netlink_unicast+0x449/0x710
[ 3625.435050][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3625.435050][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3625.435050][   T73]      ___sys_sendmsg+0xee/0x170
[ 3625.435050][   T73]      __sys_sendmsg+0xcd/0x170
[ 3625.435050][   T73]      do_syscall_64+0xc6/0x1e0
[ 3625.435050][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3625.435050][   T73] 
[ 3625.437409][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3625.437409][   T73]      netdev_get_by_index+0x5e/0x80
[ 3625.437409][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3625.437409][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3625.437409][   T73]      ip6_route_add+0x1c/0x140
[ 3625.437409][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3625.437409][   T73]      addrconf_add_dev+0xe2/0x170
[ 3625.437409][   T73]      inet6_addr_add+0x12f/0xa40
[ 3625.437409][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3625.437409][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3625.437409][   T73]      netlink_rcv_skb+0x130/0x360
[ 3625.437409][   T73]      netlink_unicast+0x449/0x710
[ 3625.437409][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3625.437409][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3625.437409][   T73]      ___sys_sendmsg+0xee/0x170
[ 3625.437409][   T73]      __sys_sendmsg+0xcd/0x170
[ 3625.437409][   T73]      do_syscall_64+0xc6/0x1e0
[ 3625.437409][   T73] 
[ 3625.439627][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3625.439627][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3625.439627][   T73]      ipv6_find_idev+0x102/0x170
[ 3625.439627][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3625.439627][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3625.439627][   T73]      netlink_rcv_skb+0x130/0x360
[ 3625.439627][   T73]      netlink_unicast+0x449/0x710
[ 3625.439627][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3625.439627][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3625.439627][   T73]      ___sys_sendmsg+0xee/0x170
[ 3625.439627][   T73]      __sys_sendmsg+0xcd/0x170
[ 3625.439627][   T73]      do_syscall_64+0xc6/0x1e0
[ 3625.439627][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3625.439627][   T73] 
[ 3625.441391][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3625.441391][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3625.441391][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3625.441391][   T73]      ipv6_find_idev+0x102/0x170
[ 3625.441391][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3625.441391][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3625.441391][   T73]      netlink_rcv_skb+0x130/0x360
[ 3625.441391][   T73]      netlink_unicast+0x449/0x710
[ 3625.441391][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3625.441391][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3625.441391][   T73]      ___sys_sendmsg+0xee/0x170
[ 3625.441391][   T73]      __sys_sendmsg+0xcd/0x170
[ 3625.441391][   T73]      do_syscall_64+0xc6/0x1e0
[ 3625.441391][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3625.441391][   T73] 
[ 3625.443377][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3625.443669][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3625.443669][   T73]      netdev_get_by_index+0x5e/0x80
[ 3625.443669][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3625.443669][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3625.443669][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3625.443669][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3625.443669][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3625.443669][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3625.443669][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3625.443669][   T73]      addrconf_dad_begin+0x310/0x670
[ 3625.443669][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3625.443669][   T73]      process_one_work+0x84d/0x18a0
[ 3625.443669][   T73]      worker_thread+0x587/0xd30
[ 3625.443669][   T73]      kthread+0x28a/0x350
[ 3625.443669][   T73]      ret_from_fork+0x31/0x70
[ 3625.443669][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3625.443669][   T73] 
[ 3625.445895][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3625.445895][   T73]      netdev_get_by_index+0x5e/0x80
[ 3625.445895][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3625.445895][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3625.445895][   T73]      ip6_route_add+0x1c/0x140
[ 3625.445895][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3625.445895][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3625.445895][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3625.445895][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3625.445895][   T73]      netlink_rcv_skb+0x130/0x360
[ 3625.445895][   T73]      netlink_unicast+0x449/0x710
[ 3625.445895][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3625.445895][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3625.445895][   T73]      ___sys_sendmsg+0xee/0x170
[ 3625.445895][   T73]      __sys_sendmsg+0xcd/0x170
[ 3625.445895][   T73]      do_syscall_64+0xc6/0x1e0
[ 3625.445895][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3625.445895][   T73] 
[ 3625.448249][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3625.448249][   T73]      netdev_get_by_index+0x5e/0x80
[ 3625.448249][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3625.448249][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3625.448249][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3625.448249][   T73]      ipv6_add_addr+0x411/0x2000
[ 3625.448249][   T73]      inet6_addr_add+0x30e/0xa40
[ 3625.448249][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3625.448249][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3625.448249][   T73]      netlink_rcv_skb+0x130/0x360
[ 3625.448249][   T73]      netlink_unicast+0x449/0x710
[ 3625.448249][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3625.448249][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3625.448249][   T73]      ___sys_sendmsg+0xee/0x170
[ 3625.448249][   T73]      __sys_sendmsg+0xcd/0x170
[ 3625.448249][   T73]      do_syscall_64+0xc6/0x1e0
[ 3625.448249][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3625.448249][   T73] 
[ 3625.450484][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3625.450484][   T73]      netdev_get_by_index+0x5e/0x80
[ 3625.450484][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3625.450484][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3625.450484][   T73]      ip6_route_add+0x1c/0x140
[ 3625.450484][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3625.450484][   T73]      addrconf_add_dev+0xe2/0x170
[ 3625.450484][   T73]      inet6_addr_add+0x12f/0xa40
[ 3625.450484][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3625.450484][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3625.450484][   T73]      netlink_rcv_skb+0x130/0x360
[ 3625.450484][   T73]      netlink_unicast+0x449/0x710
[ 3625.450484][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3625.450484][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3625.450484][   T73]      ___sys_sendmsg+0xee/0x170
[ 3625.450484][   T73]      __sys_sendmsg+0xcd/0x170
[ 3625.450484][   T73]      do_syscall_64+0xc6/0x1e0
[ 3625.450484][   T73] 
[ 3625.452742][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3625.452742][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3625.452742][   T73]      ipv6_find_idev+0x102/0x170
[ 3625.452742][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3625.452742][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3625.452742][   T73]      netlink_rcv_skb+0x130/0x360
[ 3625.452742][   T73]      netlink_unicast+0x449/0x710
[ 3625.452742][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3625.452742][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3625.452742][   T73]      ___sys_sendmsg+0xee/0x170
[ 3625.452742][   T73]      __sys_sendmsg+0xcd/0x170
[ 3625.452742][   T73]      do_syscall_64+0xc6/0x1e0
[ 3625.452742][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3625.452742][   T73] 
[ 3625.454504][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3625.454504][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3625.454504][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3625.454504][   T73]      ipv6_find_idev+0x102/0x170
[ 3625.454504][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3625.454504][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3625.454504][   T73]      netlink_rcv_skb+0x130/0x360
[ 3625.454504][   T73]      netlink_unicast+0x449/0x710
[ 3625.454504][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3625.454504][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3625.454504][   T73]      ___sys_sendmsg+0xee/0x170
[ 3625.454504][   T73]      __sys_sendmsg+0xcd/0x170
[ 3625.454504][   T73]      do_syscall_64+0xc6/0x1e0
[ 3625.454504][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3625.454504][   T73] 
[ 3635.695796][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3635.696241][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3635.696241][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3635.696241][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3635.696241][   T73]      fib6_nh_init+0xa22/0x1580
[ 3635.696241][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3635.696241][   T73]      ip6_route_add+0x1c/0x140
[ 3635.696241][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3635.696241][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3635.696241][   T73]      netlink_rcv_skb+0x130/0x360
[ 3635.696241][   T73]      netlink_unicast+0x449/0x710
[ 3635.696241][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3635.696241][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3635.696241][   T73]      ___sys_sendmsg+0xee/0x170
[ 3635.696241][   T73]      __sys_sendmsg+0xcd/0x170
[ 3635.696241][   T73]      do_syscall_64+0xc6/0x1e0
[ 3635.696241][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3635.696241][   T73] 
[ 3635.698187][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3635.698187][   T73]      dst_init+0x84/0x4a0
[ 3635.698187][   T73]      dst_alloc+0x97/0x150
[ 3635.698187][   T73]      ip6_dst_alloc+0x23/0x90
[ 3635.698187][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3635.698187][   T73]      ip6_pol_route+0x56f/0x840
[ 3635.698187][   T73]      fib6_rule_lookup+0x456/0x630
[ 3635.698187][   T73]      ip6_route_input+0x59c/0xa50
[ 3635.698187][   T73]      ipv6_rcv+0x397/0x810
[ 3635.698187][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3635.698187][   T73]      process_backlog+0x101/0x620
[ 3635.698187][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3635.698187][   T73]      net_rx_action+0x495/0xbe0
[ 3635.698187][   T73]      __do_softirq+0x1b5/0x7f6
[ 3635.698187][   T73] 
[ 3635.700407][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3635.700407][   T73]      netdev_get_by_index+0x5e/0x80
[ 3635.700407][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3635.700407][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3635.700407][   T73]      ip6_route_add+0x1c/0x140
[ 3635.700407][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3635.700407][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3635.700407][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3635.700407][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3635.700407][   T73]      netlink_rcv_skb+0x130/0x360
[ 3635.700407][   T73]      netlink_unicast+0x449/0x710
[ 3635.700407][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3635.700407][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3635.700407][   T73]      ___sys_sendmsg+0xee/0x170
[ 3635.700407][   T73]      __sys_sendmsg+0xcd/0x170
[ 3635.700407][   T73]      do_syscall_64+0xc6/0x1e0
[ 3635.700407][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3635.700407][   T73] 
[ 3635.702423][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3635.702423][   T73]      netdev_get_by_index+0x5e/0x80
[ 3635.702423][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3635.702423][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3635.702423][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3635.702423][   T73]      ipv6_add_addr+0x411/0x2000
[ 3635.702423][   T73]      inet6_addr_add+0x30e/0xa40
[ 3635.702423][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3635.702423][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3635.702423][   T73]      netlink_rcv_skb+0x130/0x360
[ 3635.702423][   T73]      netlink_unicast+0x449/0x710
[ 3635.702423][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3635.702423][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3635.702423][   T73]      ___sys_sendmsg+0xee/0x170
[ 3635.702423][   T73]      __sys_sendmsg+0xcd/0x170
[ 3635.702423][   T73]      do_syscall_64+0xc6/0x1e0
[ 3635.702423][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3635.702423][   T73] 
[ 3635.704448][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3635.704448][   T73]      netdev_get_by_index+0x5e/0x80
[ 3635.704448][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3635.704448][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3635.704448][   T73]      ip6_route_add+0x1c/0x140
[ 3635.704448][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3635.704448][   T73]      addrconf_add_dev+0xe2/0x170
[ 3635.704448][   T73]      inet6_addr_add+0x12f/0xa40
[ 3635.704448][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3635.704448][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3635.704448][   T73]      netlink_rcv_skb+0x130/0x360
[ 3635.704448][   T73]      netlink_unicast+0x449/0x710
[ 3635.704448][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3635.704448][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3635.704448][   T73]      ___sys_sendmsg+0xee/0x170
[ 3635.704448][   T73]      __sys_sendmsg+0xcd/0x170
[ 3635.704448][   T73]      do_syscall_64+0xc6/0x1e0
[ 3635.704448][   T73] 
[ 3635.706439][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3635.706439][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3635.706439][   T73]      ipv6_find_idev+0x102/0x170
[ 3635.706439][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3635.706439][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3635.706439][   T73]      netlink_rcv_skb+0x130/0x360
[ 3635.706439][   T73]      netlink_unicast+0x449/0x710
[ 3635.706439][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3635.706439][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3635.706439][   T73]      ___sys_sendmsg+0xee/0x170
[ 3635.706439][   T73]      __sys_sendmsg+0xcd/0x170
[ 3635.706439][   T73]      do_syscall_64+0xc6/0x1e0
[ 3635.706439][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3635.706439][   T73] 
[ 3635.707999][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3635.707999][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3635.707999][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3635.707999][   T73]      ipv6_find_idev+0x102/0x170
[ 3635.707999][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3635.707999][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3635.707999][   T73]      netlink_rcv_skb+0x130/0x360
[ 3635.707999][   T73]      netlink_unicast+0x449/0x710
[ 3635.707999][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3635.707999][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3635.707999][   T73]      ___sys_sendmsg+0xee/0x170
[ 3635.707999][   T73]      __sys_sendmsg+0xcd/0x170
[ 3635.707999][   T73]      do_syscall_64+0xc6/0x1e0
[ 3635.707999][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3635.707999][   T73] 
[ 3635.709717][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3635.710008][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3635.710008][   T73]      netdev_get_by_index+0x5e/0x80
[ 3635.710008][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3635.710008][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3635.710008][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3635.710008][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3635.710008][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3635.710008][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3635.710008][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3635.710008][   T73]      addrconf_dad_begin+0x310/0x670
[ 3635.710008][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3635.710008][   T73]      process_one_work+0x84d/0x18a0
[ 3635.710008][   T73]      worker_thread+0x587/0xd30
[ 3635.710008][   T73]      kthread+0x28a/0x350
[ 3635.710008][   T73]      ret_from_fork+0x31/0x70
[ 3635.710008][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3635.710008][   T73] 
[ 3635.711944][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3635.711944][   T73]      netdev_get_by_index+0x5e/0x80
[ 3635.711944][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3635.711944][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3635.711944][   T73]      ip6_route_add+0x1c/0x140
[ 3635.711944][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3635.711944][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3635.711944][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3635.711944][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3635.711944][   T73]      netlink_rcv_skb+0x130/0x360
[ 3635.711944][   T73]      netlink_unicast+0x449/0x710
[ 3635.711944][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3635.711944][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3635.711944][   T73]      ___sys_sendmsg+0xee/0x170
[ 3635.711944][   T73]      __sys_sendmsg+0xcd/0x170
[ 3635.711944][   T73]      do_syscall_64+0xc6/0x1e0
[ 3635.711944][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3635.711944][   T73] 
[ 3635.713972][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3635.713972][   T73]      netdev_get_by_index+0x5e/0x80
[ 3635.713972][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3635.713972][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3635.713972][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3635.713972][   T73]      ipv6_add_addr+0x411/0x2000
[ 3635.713972][   T73]      inet6_addr_add+0x30e/0xa40
[ 3635.713972][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3635.713972][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3635.713972][   T73]      netlink_rcv_skb+0x130/0x360
[ 3635.713972][   T73]      netlink_unicast+0x449/0x710
[ 3635.713972][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3635.713972][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3635.713972][   T73]      ___sys_sendmsg+0xee/0x170
[ 3635.713972][   T73]      __sys_sendmsg+0xcd/0x170
[ 3635.713972][   T73]      do_syscall_64+0xc6/0x1e0
[ 3635.713972][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3635.713972][   T73] 
[ 3635.720537][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3635.720537][   T73]      netdev_get_by_index+0x5e/0x80
[ 3635.720537][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3635.720537][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3635.720537][   T73]      ip6_route_add+0x1c/0x140
[ 3635.720537][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3635.720537][   T73]      addrconf_add_dev+0xe2/0x170
[ 3635.720537][   T73]      inet6_addr_add+0x12f/0xa40
[ 3635.720537][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3635.720537][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3635.720537][   T73]      netlink_rcv_skb+0x130/0x360
[ 3635.720537][   T73]      netlink_unicast+0x449/0x710
[ 3635.720537][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3635.720537][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3635.720537][   T73]      ___sys_sendmsg+0xee/0x170
[ 3635.720537][   T73]      __sys_sendmsg+0xcd/0x170
[ 3635.720537][   T73]      do_syscall_64+0xc6/0x1e0
[ 3635.720537][   T73] 
[ 3635.722530][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3635.722530][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3635.722530][   T73]      ipv6_find_idev+0x102/0x170
[ 3635.722530][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3635.722530][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3635.722530][   T73]      netlink_rcv_skb+0x130/0x360
[ 3635.722530][   T73]      netlink_unicast+0x449/0x710
[ 3635.722530][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3635.722530][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3635.722530][   T73]      ___sys_sendmsg+0xee/0x170
[ 3635.722530][   T73]      __sys_sendmsg+0xcd/0x170
[ 3635.722530][   T73]      do_syscall_64+0xc6/0x1e0
[ 3635.722530][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3635.722530][   T73] 
[ 3635.724097][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3635.724097][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3635.724097][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3635.724097][   T73]      ipv6_find_idev+0x102/0x170
[ 3635.724097][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3635.724097][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3635.724097][   T73]      netlink_rcv_skb+0x130/0x360
[ 3635.724097][   T73]      netlink_unicast+0x449/0x710
[ 3635.724097][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3635.724097][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3635.724097][   T73]      ___sys_sendmsg+0xee/0x170
[ 3635.724097][   T73]      __sys_sendmsg+0xcd/0x170
[ 3635.724097][   T73]      do_syscall_64+0xc6/0x1e0
[ 3635.724097][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3635.724097][   T73] 
[ 3635.725818][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3635.726103][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3635.726103][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3635.726103][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3635.726103][   T73]      fib6_nh_init+0xa22/0x1580
[ 3635.726103][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3635.726103][   T73]      ip6_route_add+0x1c/0x140
[ 3635.726103][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3635.726103][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3635.726103][   T73]      netlink_rcv_skb+0x130/0x360
[ 3635.726103][   T73]      netlink_unicast+0x449/0x710
[ 3635.726103][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3635.726103][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3635.726103][   T73]      ___sys_sendmsg+0xee/0x170
[ 3635.726103][   T73]      __sys_sendmsg+0xcd/0x170
[ 3635.726103][   T73]      do_syscall_64+0xc6/0x1e0
[ 3635.726103][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3635.726103][   T73] 
[ 3635.729983][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3635.729983][   T73]      dst_init+0x84/0x4a0
[ 3635.729983][   T73]      dst_alloc+0x97/0x150
[ 3635.729983][   T73]      ip6_dst_alloc+0x23/0x90
[ 3635.729983][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3635.729983][   T73]      ip6_pol_route+0x56f/0x840
[ 3635.729983][   T73]      fib6_rule_lookup+0x456/0x630
[ 3635.729983][   T73]      ip6_route_input+0x59c/0xa50
[ 3635.729983][   T73]      ipv6_rcv+0x397/0x810
[ 3635.729983][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3635.729983][   T73]      process_backlog+0x101/0x620
[ 3635.729983][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3635.729983][   T73]      net_rx_action+0x495/0xbe0
[ 3635.729983][   T73]      __do_softirq+0x1b5/0x7f6
[ 3635.729983][   T73] 
[ 3635.731897][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3635.731897][   T73]      netdev_get_by_index+0x5e/0x80
[ 3635.731897][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3635.731897][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3635.731897][   T73]      ip6_route_add+0x1c/0x140
[ 3635.731897][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3635.731897][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3635.731897][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3635.731897][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3635.731897][   T73]      netlink_rcv_skb+0x130/0x360
[ 3635.731897][   T73]      netlink_unicast+0x449/0x710
[ 3635.731897][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3635.731897][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3635.731897][   T73]      ___sys_sendmsg+0xee/0x170
[ 3635.731897][   T73]      __sys_sendmsg+0xcd/0x170
[ 3635.731897][   T73]      do_syscall_64+0xc6/0x1e0
[ 3635.731897][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3635.731897][   T73] 
[ 3635.734171][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3635.734171][   T73]      netdev_get_by_index+0x5e/0x80
[ 3635.734171][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3635.734171][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3635.734171][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3635.734171][   T73]      ipv6_add_addr+0x411/0x2000
[ 3635.734171][   T73]      inet6_addr_add+0x30e/0xa40
[ 3635.734171][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3635.734171][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3635.734171][   T73]      netlink_rcv_skb+0x130/0x360
[ 3635.734171][   T73]      netlink_unicast+0x449/0x710
[ 3635.734171][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3635.734171][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3635.734171][   T73]      ___sys_sendmsg+0xee/0x170
[ 3635.734171][   T73]      __sys_sendmsg+0xcd/0x170
[ 3635.734171][   T73]      do_syscall_64+0xc6/0x1e0
[ 3635.734171][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3635.734171][   T73] 
[ 3635.736434][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3635.736434][   T73]      netdev_get_by_index+0x5e/0x80
[ 3635.736434][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3635.736434][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3635.736434][   T73]      ip6_route_add+0x1c/0x140
[ 3635.736434][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3635.736434][   T73]      addrconf_add_dev+0xe2/0x170
[ 3635.736434][   T73]      inet6_addr_add+0x12f/0xa40
[ 3635.736434][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3635.736434][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3635.736434][   T73]      netlink_rcv_skb+0x130/0x360
[ 3635.736434][   T73]      netlink_unicast+0x449/0x710
[ 3635.736434][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3635.736434][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3635.736434][   T73]      ___sys_sendmsg+0xee/0x170
[ 3635.736434][   T73]      __sys_sendmsg+0xcd/0x170
[ 3635.736434][   T73]      do_syscall_64+0xc6/0x1e0
[ 3635.736434][   T73] 
[ 3635.738682][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3635.738682][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3635.738682][   T73]      ipv6_find_idev+0x102/0x170
[ 3635.738682][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3635.738682][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3635.738682][   T73]      netlink_rcv_skb+0x130/0x360
[ 3635.738682][   T73]      netlink_unicast+0x449/0x710
[ 3635.738682][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3635.738682][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3635.738682][   T73]      ___sys_sendmsg+0xee/0x170
[ 3635.738682][   T73]      __sys_sendmsg+0xcd/0x170
[ 3635.738682][   T73]      do_syscall_64+0xc6/0x1e0
[ 3635.738682][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3635.738682][   T73] 
[ 3635.740431][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3635.740431][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3635.740431][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3635.740431][   T73]      ipv6_find_idev+0x102/0x170
[ 3635.740431][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3635.740431][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3635.740431][   T73]      netlink_rcv_skb+0x130/0x360
[ 3635.740431][   T73]      netlink_unicast+0x449/0x710
[ 3635.740431][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3635.740431][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3635.740431][   T73]      ___sys_sendmsg+0xee/0x170
[ 3635.740431][   T73]      __sys_sendmsg+0xcd/0x170
[ 3635.740431][   T73]      do_syscall_64+0xc6/0x1e0
[ 3635.740431][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3635.740431][   T73] 
[ 3635.742390][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3635.742687][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3635.742687][   T73]      netdev_get_by_index+0x5e/0x80
[ 3635.742687][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3635.742687][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3635.742687][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3635.742687][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3635.742687][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3635.742687][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3635.742687][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3635.742687][   T73]      addrconf_dad_begin+0x310/0x670
[ 3635.742687][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3635.742687][   T73]      process_one_work+0x84d/0x18a0
[ 3635.742687][   T73]      worker_thread+0x587/0xd30
[ 3635.742687][   T73]      kthread+0x28a/0x350
[ 3635.742687][   T73]      ret_from_fork+0x31/0x70
[ 3635.742687][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3635.742687][   T73] 
[ 3635.744897][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3635.744897][   T73]      netdev_get_by_index+0x5e/0x80
[ 3635.744897][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3635.744897][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3635.744897][   T73]      ip6_route_add+0x1c/0x140
[ 3635.744897][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3635.744897][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3635.744897][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3635.744897][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3635.744897][   T73]      netlink_rcv_skb+0x130/0x360
[ 3635.744897][   T73]      netlink_unicast+0x449/0x710
[ 3635.744897][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3635.744897][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3635.744897][   T73]      ___sys_sendmsg+0xee/0x170
[ 3635.744897][   T73]      __sys_sendmsg+0xcd/0x170
[ 3635.744897][   T73]      do_syscall_64+0xc6/0x1e0
[ 3635.744897][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3635.744897][   T73] 
[ 3635.748959][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3635.748959][   T73]      netdev_get_by_index+0x5e/0x80
[ 3635.748959][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3635.748959][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3635.748959][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3635.748959][   T73]      ipv6_add_addr+0x411/0x2000
[ 3635.748959][   T73]      inet6_addr_add+0x30e/0xa40
[ 3635.748959][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3635.748959][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3635.748959][   T73]      netlink_rcv_skb+0x130/0x360
[ 3635.748959][   T73]      netlink_unicast+0x449/0x710
[ 3635.748959][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3635.748959][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3635.748959][   T73]      ___sys_sendmsg+0xee/0x170
[ 3635.748959][   T73]      __sys_sendmsg+0xcd/0x170
[ 3635.748959][   T73]      do_syscall_64+0xc6/0x1e0
[ 3635.748959][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3635.748959][   T73] 
[ 3635.751153][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3635.751153][   T73]      netdev_get_by_index+0x5e/0x80
[ 3635.751153][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3635.751153][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3635.751153][   T73]      ip6_route_add+0x1c/0x140
[ 3635.751153][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3635.751153][   T73]      addrconf_add_dev+0xe2/0x170
[ 3635.751153][   T73]      inet6_addr_add+0x12f/0xa40
[ 3635.751153][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3635.751153][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3635.751153][   T73]      netlink_rcv_skb+0x130/0x360
[ 3635.751153][   T73]      netlink_unicast+0x449/0x710
[ 3635.751153][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3635.751153][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3635.751153][   T73]      ___sys_sendmsg+0xee/0x170
[ 3635.751153][   T73]      __sys_sendmsg+0xcd/0x170
[ 3635.751153][   T73]      do_syscall_64+0xc6/0x1e0
[ 3635.751153][   T73] 
[ 3635.753459][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3635.753459][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3635.753459][   T73]      ipv6_find_idev+0x102/0x170
[ 3635.753459][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3635.753459][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3635.753459][   T73]      netlink_rcv_skb+0x130/0x360
[ 3635.753459][   T73]      netlink_unicast+0x449/0x710
[ 3635.753459][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3635.753459][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3635.753459][   T73]      ___sys_sendmsg+0xee/0x170
[ 3635.753459][   T73]      __sys_sendmsg+0xcd/0x170
[ 3635.753459][   T73]      do_syscall_64+0xc6/0x1e0
[ 3635.753459][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3635.753459][   T73] 
[ 3635.755190][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3635.755190][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3635.755190][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3635.755190][   T73]      ipv6_find_idev+0x102/0x170
[ 3635.755190][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3635.755190][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3635.755190][   T73]      netlink_rcv_skb+0x130/0x360
[ 3635.755190][   T73]      netlink_unicast+0x449/0x710
[ 3635.755190][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3635.755190][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3635.755190][   T73]      ___sys_sendmsg+0xee/0x170
[ 3635.755190][   T73]      __sys_sendmsg+0xcd/0x170
[ 3635.755190][   T73]      do_syscall_64+0xc6/0x1e0
[ 3635.755190][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3635.755190][   T73] 
[ 3645.999768][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3646.000189][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3646.000189][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3646.000189][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3646.000189][   T73]      fib6_nh_init+0xa22/0x1580
[ 3646.000189][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3646.000189][   T73]      ip6_route_add+0x1c/0x140
[ 3646.000189][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3646.000189][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3646.000189][   T73]      netlink_rcv_skb+0x130/0x360
[ 3646.000189][   T73]      netlink_unicast+0x449/0x710
[ 3646.000189][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3646.000189][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3646.000189][   T73]      ___sys_sendmsg+0xee/0x170
[ 3646.000189][   T73]      __sys_sendmsg+0xcd/0x170
[ 3646.000189][   T73]      do_syscall_64+0xc6/0x1e0
[ 3646.000189][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3646.000189][   T73] 
[ 3646.002137][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3646.002137][   T73]      dst_init+0x84/0x4a0
[ 3646.002137][   T73]      dst_alloc+0x97/0x150
[ 3646.002137][   T73]      ip6_dst_alloc+0x23/0x90
[ 3646.002137][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3646.002137][   T73]      ip6_pol_route+0x56f/0x840
[ 3646.002137][   T73]      fib6_rule_lookup+0x456/0x630
[ 3646.002137][   T73]      ip6_route_input+0x59c/0xa50
[ 3646.002137][   T73]      ipv6_rcv+0x397/0x810
[ 3646.002137][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3646.002137][   T73]      process_backlog+0x101/0x620
[ 3646.002137][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3646.002137][   T73]      net_rx_action+0x495/0xbe0
[ 3646.002137][   T73]      __do_softirq+0x1b5/0x7f6
[ 3646.002137][   T73] 
[ 3646.003786][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3646.003786][   T73]      netdev_get_by_index+0x5e/0x80
[ 3646.003786][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3646.003786][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3646.003786][   T73]      ip6_route_add+0x1c/0x140
[ 3646.003786][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3646.003786][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3646.003786][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3646.003786][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3646.003786][   T73]      netlink_rcv_skb+0x130/0x360
[ 3646.003786][   T73]      netlink_unicast+0x449/0x710
[ 3646.003786][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3646.003786][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3646.003786][   T73]      ___sys_sendmsg+0xee/0x170
[ 3646.003786][   T73]      __sys_sendmsg+0xcd/0x170
[ 3646.003786][   T73]      do_syscall_64+0xc6/0x1e0
[ 3646.003786][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3646.003786][   T73] 
[ 3646.005803][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3646.005803][   T73]      netdev_get_by_index+0x5e/0x80
[ 3646.005803][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3646.005803][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3646.005803][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3646.005803][   T73]      ipv6_add_addr+0x411/0x2000
[ 3646.005803][   T73]      inet6_addr_add+0x30e/0xa40
[ 3646.005803][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3646.005803][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3646.005803][   T73]      netlink_rcv_skb+0x130/0x360
[ 3646.005803][   T73]      netlink_unicast+0x449/0x710
[ 3646.005803][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3646.005803][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3646.005803][   T73]      ___sys_sendmsg+0xee/0x170
[ 3646.005803][   T73]      __sys_sendmsg+0xcd/0x170
[ 3646.005803][   T73]      do_syscall_64+0xc6/0x1e0
[ 3646.005803][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3646.005803][   T73] 
[ 3646.007820][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3646.007820][   T73]      netdev_get_by_index+0x5e/0x80
[ 3646.007820][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3646.007820][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3646.007820][   T73]      ip6_route_add+0x1c/0x140
[ 3646.007820][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3646.007820][   T73]      addrconf_add_dev+0xe2/0x170
[ 3646.007820][   T73]      inet6_addr_add+0x12f/0xa40
[ 3646.007820][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3646.007820][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3646.007820][   T73]      netlink_rcv_skb+0x130/0x360
[ 3646.007820][   T73]      netlink_unicast+0x449/0x710
[ 3646.007820][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3646.007820][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3646.007820][   T73]      ___sys_sendmsg+0xee/0x170
[ 3646.007820][   T73]      __sys_sendmsg+0xcd/0x170
[ 3646.007820][   T73]      do_syscall_64+0xc6/0x1e0
[ 3646.007820][   T73] 
[ 3646.009794][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3646.009794][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3646.009794][   T73]      ipv6_find_idev+0x102/0x170
[ 3646.009794][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3646.009794][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3646.009794][   T73]      netlink_rcv_skb+0x130/0x360
[ 3646.009794][   T73]      netlink_unicast+0x449/0x710
[ 3646.009794][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3646.009794][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3646.009794][   T73]      ___sys_sendmsg+0xee/0x170
[ 3646.009794][   T73]      __sys_sendmsg+0xcd/0x170
[ 3646.009794][   T73]      do_syscall_64+0xc6/0x1e0
[ 3646.009794][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3646.009794][   T73] 
[ 3646.011340][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3646.011340][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3646.011340][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3646.011340][   T73]      ipv6_find_idev+0x102/0x170
[ 3646.011340][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3646.011340][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3646.011340][   T73]      netlink_rcv_skb+0x130/0x360
[ 3646.011340][   T73]      netlink_unicast+0x449/0x710
[ 3646.011340][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3646.011340][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3646.011340][   T73]      ___sys_sendmsg+0xee/0x170
[ 3646.011340][   T73]      __sys_sendmsg+0xcd/0x170
[ 3646.011340][   T73]      do_syscall_64+0xc6/0x1e0
[ 3646.011340][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3646.011340][   T73] 
[ 3646.013050][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3646.013336][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3646.013336][   T73]      netdev_get_by_index+0x5e/0x80
[ 3646.013336][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3646.013336][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3646.013336][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3646.013336][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3646.013336][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3646.013336][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3646.013336][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3646.013336][   T73]      addrconf_dad_begin+0x310/0x670
[ 3646.013336][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3646.013336][   T73]      process_one_work+0x84d/0x18a0
[ 3646.013336][   T73]      worker_thread+0x587/0xd30
[ 3646.013336][   T73]      kthread+0x28a/0x350
[ 3646.013336][   T73]      ret_from_fork+0x31/0x70
[ 3646.013336][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3646.013336][   T73] 
[ 3646.015254][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3646.015254][   T73]      netdev_get_by_index+0x5e/0x80
[ 3646.015254][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3646.015254][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3646.015254][   T73]      ip6_route_add+0x1c/0x140
[ 3646.015254][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3646.015254][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3646.015254][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3646.015254][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3646.015254][   T73]      netlink_rcv_skb+0x130/0x360
[ 3646.015254][   T73]      netlink_unicast+0x449/0x710
[ 3646.015254][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3646.015254][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3646.015254][   T73]      ___sys_sendmsg+0xee/0x170
[ 3646.015254][   T73]      __sys_sendmsg+0xcd/0x170
[ 3646.015254][   T73]      do_syscall_64+0xc6/0x1e0
[ 3646.015254][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3646.015254][   T73] 
[ 3646.017262][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3646.017262][   T73]      netdev_get_by_index+0x5e/0x80
[ 3646.017262][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3646.017262][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3646.017262][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3646.017262][   T73]      ipv6_add_addr+0x411/0x2000
[ 3646.017262][   T73]      inet6_addr_add+0x30e/0xa40
[ 3646.017262][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3646.017262][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3646.017262][   T73]      netlink_rcv_skb+0x130/0x360
[ 3646.017262][   T73]      netlink_unicast+0x449/0x710
[ 3646.017262][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3646.017262][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3646.017262][   T73]      ___sys_sendmsg+0xee/0x170
[ 3646.017262][   T73]      __sys_sendmsg+0xcd/0x170
[ 3646.017262][   T73]      do_syscall_64+0xc6/0x1e0
[ 3646.017262][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3646.017262][   T73] 
[ 3646.021369][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3646.021369][   T73]      netdev_get_by_index+0x5e/0x80
[ 3646.021369][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3646.021369][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3646.021369][   T73]      ip6_route_add+0x1c/0x140
[ 3646.021369][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3646.021369][   T73]      addrconf_add_dev+0xe2/0x170
[ 3646.021369][   T73]      inet6_addr_add+0x12f/0xa40
[ 3646.021369][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3646.021369][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3646.021369][   T73]      netlink_rcv_skb+0x130/0x360
[ 3646.021369][   T73]      netlink_unicast+0x449/0x710
[ 3646.021369][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3646.021369][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3646.021369][   T73]      ___sys_sendmsg+0xee/0x170
[ 3646.021369][   T73]      __sys_sendmsg+0xcd/0x170
[ 3646.021369][   T73]      do_syscall_64+0xc6/0x1e0
[ 3646.021369][   T73] 
[ 3646.023358][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3646.023358][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3646.023358][   T73]      ipv6_find_idev+0x102/0x170
[ 3646.023358][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3646.023358][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3646.023358][   T73]      netlink_rcv_skb+0x130/0x360
[ 3646.023358][   T73]      netlink_unicast+0x449/0x710
[ 3646.023358][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3646.023358][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3646.023358][   T73]      ___sys_sendmsg+0xee/0x170
[ 3646.023358][   T73]      __sys_sendmsg+0xcd/0x170
[ 3646.023358][   T73]      do_syscall_64+0xc6/0x1e0
[ 3646.023358][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3646.023358][   T73] 
[ 3646.024920][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3646.024920][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3646.024920][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3646.024920][   T73]      ipv6_find_idev+0x102/0x170
[ 3646.024920][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3646.024920][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3646.024920][   T73]      netlink_rcv_skb+0x130/0x360
[ 3646.024920][   T73]      netlink_unicast+0x449/0x710
[ 3646.024920][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3646.024920][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3646.024920][   T73]      ___sys_sendmsg+0xee/0x170
[ 3646.024920][   T73]      __sys_sendmsg+0xcd/0x170
[ 3646.024920][   T73]      do_syscall_64+0xc6/0x1e0
[ 3646.024920][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3646.024920][   T73] 
[ 3646.026636][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3646.026928][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3646.026928][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3646.026928][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3646.026928][   T73]      fib6_nh_init+0xa22/0x1580
[ 3646.026928][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3646.026928][   T73]      ip6_route_add+0x1c/0x140
[ 3646.026928][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3646.026928][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3646.026928][   T73]      netlink_rcv_skb+0x130/0x360
[ 3646.026928][   T73]      netlink_unicast+0x449/0x710
[ 3646.026928][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3646.026928][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3646.026928][   T73]      ___sys_sendmsg+0xee/0x170
[ 3646.026928][   T73]      __sys_sendmsg+0xcd/0x170
[ 3646.026928][   T73]      do_syscall_64+0xc6/0x1e0
[ 3646.026928][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3646.026928][   T73] 
[ 3646.029029][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3646.029029][   T73]      dst_init+0x84/0x4a0
[ 3646.029029][   T73]      dst_alloc+0x97/0x150
[ 3646.029029][   T73]      ip6_dst_alloc+0x23/0x90
[ 3646.029029][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3646.029029][   T73]      ip6_pol_route+0x56f/0x840
[ 3646.029029][   T73]      fib6_rule_lookup+0x456/0x630
[ 3646.029029][   T73]      ip6_route_input+0x59c/0xa50
[ 3646.029029][   T73]      ipv6_rcv+0x397/0x810
[ 3646.029029][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3646.029029][   T73]      process_backlog+0x101/0x620
[ 3646.029029][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3646.029029][   T73]      net_rx_action+0x495/0xbe0
[ 3646.029029][   T73]      __do_softirq+0x1b5/0x7f6
[ 3646.029029][   T73] 
[ 3646.030930][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3646.030930][   T73]      netdev_get_by_index+0x5e/0x80
[ 3646.030930][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3646.030930][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3646.030930][   T73]      ip6_route_add+0x1c/0x140
[ 3646.030930][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3646.030930][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3646.030930][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3646.030930][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3646.030930][   T73]      netlink_rcv_skb+0x130/0x360
[ 3646.030930][   T73]      netlink_unicast+0x449/0x710
[ 3646.030930][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3646.030930][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3646.030930][   T73]      ___sys_sendmsg+0xee/0x170
[ 3646.030930][   T73]      __sys_sendmsg+0xcd/0x170
[ 3646.030930][   T73]      do_syscall_64+0xc6/0x1e0
[ 3646.030930][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3646.030930][   T73] 
[ 3646.033197][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3646.033197][   T73]      netdev_get_by_index+0x5e/0x80
[ 3646.033197][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3646.033197][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3646.033197][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3646.033197][   T73]      ipv6_add_addr+0x411/0x2000
[ 3646.033197][   T73]      inet6_addr_add+0x30e/0xa40
[ 3646.033197][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3646.033197][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3646.033197][   T73]      netlink_rcv_skb+0x130/0x360
[ 3646.033197][   T73]      netlink_unicast+0x449/0x710
[ 3646.033197][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3646.033197][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3646.033197][   T73]      ___sys_sendmsg+0xee/0x170
[ 3646.033197][   T73]      __sys_sendmsg+0xcd/0x170
[ 3646.033197][   T73]      do_syscall_64+0xc6/0x1e0
[ 3646.033197][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3646.033197][   T73] 
[ 3646.035470][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3646.035470][   T73]      netdev_get_by_index+0x5e/0x80
[ 3646.035470][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3646.035470][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3646.035470][   T73]      ip6_route_add+0x1c/0x140
[ 3646.035470][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3646.035470][   T73]      addrconf_add_dev+0xe2/0x170
[ 3646.035470][   T73]      inet6_addr_add+0x12f/0xa40
[ 3646.035470][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3646.035470][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3646.035470][   T73]      netlink_rcv_skb+0x130/0x360
[ 3646.035470][   T73]      netlink_unicast+0x449/0x710
[ 3646.035470][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3646.035470][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3646.035470][   T73]      ___sys_sendmsg+0xee/0x170
[ 3646.035470][   T73]      __sys_sendmsg+0xcd/0x170
[ 3646.035470][   T73]      do_syscall_64+0xc6/0x1e0
[ 3646.035470][   T73] 
[ 3646.037697][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3646.037697][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3646.037697][   T73]      ipv6_find_idev+0x102/0x170
[ 3646.037697][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3646.037697][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3646.037697][   T73]      netlink_rcv_skb+0x130/0x360
[ 3646.037697][   T73]      netlink_unicast+0x449/0x710
[ 3646.037697][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3646.037697][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3646.037697][   T73]      ___sys_sendmsg+0xee/0x170
[ 3646.037697][   T73]      __sys_sendmsg+0xcd/0x170
[ 3646.037697][   T73]      do_syscall_64+0xc6/0x1e0
[ 3646.037697][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3646.037697][   T73] 
[ 3646.039430][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3646.039430][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3646.039430][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3646.039430][   T73]      ipv6_find_idev+0x102/0x170
[ 3646.039430][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3646.039430][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3646.039430][   T73]      netlink_rcv_skb+0x130/0x360
[ 3646.039430][   T73]      netlink_unicast+0x449/0x710
[ 3646.039430][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3646.039430][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3646.039430][   T73]      ___sys_sendmsg+0xee/0x170
[ 3646.039430][   T73]      __sys_sendmsg+0xcd/0x170
[ 3646.039430][   T73]      do_syscall_64+0xc6/0x1e0
[ 3646.039430][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3646.039430][   T73] 
[ 3646.041372][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3646.041652][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3646.041652][   T73]      netdev_get_by_index+0x5e/0x80
[ 3646.041652][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3646.041652][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3646.041652][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3646.041652][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3646.041652][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3646.041652][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3646.041652][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3646.041652][   T73]      addrconf_dad_begin+0x310/0x670
[ 3646.041652][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3646.041652][   T73]      process_one_work+0x84d/0x18a0
[ 3646.041652][   T73]      worker_thread+0x587/0xd30
[ 3646.041652][   T73]      kthread+0x28a/0x350
[ 3646.041652][   T73]      ret_from_fork+0x31/0x70
[ 3646.041652][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3646.041652][   T73] 
[ 3646.043815][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3646.043815][   T73]      netdev_get_by_index+0x5e/0x80
[ 3646.043815][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3646.043815][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3646.043815][   T73]      ip6_route_add+0x1c/0x140
[ 3646.043815][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3646.043815][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3646.043815][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3646.043815][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3646.043815][   T73]      netlink_rcv_skb+0x130/0x360
[ 3646.043815][   T73]      netlink_unicast+0x449/0x710
[ 3646.043815][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3646.043815][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3646.043815][   T73]      ___sys_sendmsg+0xee/0x170
[ 3646.043815][   T73]      __sys_sendmsg+0xcd/0x170
[ 3646.043815][   T73]      do_syscall_64+0xc6/0x1e0
[ 3646.043815][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3646.043815][   T73] 
[ 3646.046080][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3646.046080][   T73]      netdev_get_by_index+0x5e/0x80
[ 3646.046080][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3646.046080][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3646.046080][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3646.046080][   T73]      ipv6_add_addr+0x411/0x2000
[ 3646.046080][   T73]      inet6_addr_add+0x30e/0xa40
[ 3646.046080][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3646.046080][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3646.046080][   T73]      netlink_rcv_skb+0x130/0x360
[ 3646.046080][   T73]      netlink_unicast+0x449/0x710
[ 3646.046080][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3646.046080][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3646.046080][   T73]      ___sys_sendmsg+0xee/0x170
[ 3646.046080][   T73]      __sys_sendmsg+0xcd/0x170
[ 3646.046080][   T73]      do_syscall_64+0xc6/0x1e0
[ 3646.046080][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3646.046080][   T73] 
[ 3646.048271][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3646.048271][   T73]      netdev_get_by_index+0x5e/0x80
[ 3646.048271][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3646.048271][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3646.048271][   T73]      ip6_route_add+0x1c/0x140
[ 3646.048271][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3646.048271][   T73]      addrconf_add_dev+0xe2/0x170
[ 3646.048271][   T73]      inet6_addr_add+0x12f/0xa40
[ 3646.048271][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3646.048271][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3646.048271][   T73]      netlink_rcv_skb+0x130/0x360
[ 3646.048271][   T73]      netlink_unicast+0x449/0x710
[ 3646.048271][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3646.048271][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3646.048271][   T73]      ___sys_sendmsg+0xee/0x170
[ 3646.048271][   T73]      __sys_sendmsg+0xcd/0x170
[ 3646.048271][   T73]      do_syscall_64+0xc6/0x1e0
[ 3646.048271][   T73] 
[ 3646.050551][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3646.050551][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3646.050551][   T73]      ipv6_find_idev+0x102/0x170
[ 3646.050551][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3646.050551][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3646.050551][   T73]      netlink_rcv_skb+0x130/0x360
[ 3646.050551][   T73]      netlink_unicast+0x449/0x710
[ 3646.050551][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3646.050551][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3646.050551][   T73]      ___sys_sendmsg+0xee/0x170
[ 3646.050551][   T73]      __sys_sendmsg+0xcd/0x170
[ 3646.050551][   T73]      do_syscall_64+0xc6/0x1e0
[ 3646.050551][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3646.050551][   T73] 
[ 3646.052297][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3646.052297][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3646.052297][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3646.052297][   T73]      ipv6_find_idev+0x102/0x170
[ 3646.052297][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3646.052297][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3646.052297][   T73]      netlink_rcv_skb+0x130/0x360
[ 3646.052297][   T73]      netlink_unicast+0x449/0x710
[ 3646.052297][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3646.052297][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3646.052297][   T73]      ___sys_sendmsg+0xee/0x170
[ 3646.052297][   T73]      __sys_sendmsg+0xcd/0x170
[ 3646.052297][   T73]      do_syscall_64+0xc6/0x1e0
[ 3646.052297][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3646.052297][   T73] 
[ 3656.295704][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3656.296171][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3656.296171][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3656.296171][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3656.296171][   T73]      fib6_nh_init+0xa22/0x1580
[ 3656.296171][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3656.296171][   T73]      ip6_route_add+0x1c/0x140
[ 3656.296171][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3656.296171][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3656.296171][   T73]      netlink_rcv_skb+0x130/0x360
[ 3656.296171][   T73]      netlink_unicast+0x449/0x710
[ 3656.296171][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3656.296171][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3656.296171][   T73]      ___sys_sendmsg+0xee/0x170
[ 3656.296171][   T73]      __sys_sendmsg+0xcd/0x170
[ 3656.296171][   T73]      do_syscall_64+0xc6/0x1e0
[ 3656.296171][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3656.296171][   T73] 
[ 3656.298103][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3656.298103][   T73]      dst_init+0x84/0x4a0
[ 3656.298103][   T73]      dst_alloc+0x97/0x150
[ 3656.298103][   T73]      ip6_dst_alloc+0x23/0x90
[ 3656.298103][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3656.298103][   T73]      ip6_pol_route+0x56f/0x840
[ 3656.298103][   T73]      fib6_rule_lookup+0x456/0x630
[ 3656.298103][   T73]      ip6_route_input+0x59c/0xa50
[ 3656.298103][   T73]      ipv6_rcv+0x397/0x810
[ 3656.298103][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3656.298103][   T73]      process_backlog+0x101/0x620
[ 3656.298103][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3656.298103][   T73]      net_rx_action+0x495/0xbe0
[ 3656.298103][   T73]      __do_softirq+0x1b5/0x7f6
[ 3656.298103][   T73] 
[ 3656.299749][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3656.299749][   T73]      netdev_get_by_index+0x5e/0x80
[ 3656.299749][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3656.299749][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3656.299749][   T73]      ip6_route_add+0x1c/0x140
[ 3656.299749][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3656.299749][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3656.299749][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3656.299749][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3656.299749][   T73]      netlink_rcv_skb+0x130/0x360
[ 3656.299749][   T73]      netlink_unicast+0x449/0x710
[ 3656.299749][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3656.299749][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3656.299749][   T73]      ___sys_sendmsg+0xee/0x170
[ 3656.299749][   T73]      __sys_sendmsg+0xcd/0x170
[ 3656.299749][   T73]      do_syscall_64+0xc6/0x1e0
[ 3656.299749][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3656.299749][   T73] 
[ 3656.301750][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3656.301750][   T73]      netdev_get_by_index+0x5e/0x80
[ 3656.301750][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3656.301750][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3656.301750][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3656.301750][   T73]      ipv6_add_addr+0x411/0x2000
[ 3656.301750][   T73]      inet6_addr_add+0x30e/0xa40
[ 3656.301750][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3656.301750][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3656.301750][   T73]      netlink_rcv_skb+0x130/0x360
[ 3656.301750][   T73]      netlink_unicast+0x449/0x710
[ 3656.301750][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3656.301750][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3656.301750][   T73]      ___sys_sendmsg+0xee/0x170
[ 3656.301750][   T73]      __sys_sendmsg+0xcd/0x170
[ 3656.301750][   T73]      do_syscall_64+0xc6/0x1e0
[ 3656.301750][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3656.301750][   T73] 
[ 3656.303751][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3656.303751][   T73]      netdev_get_by_index+0x5e/0x80
[ 3656.303751][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3656.303751][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3656.303751][   T73]      ip6_route_add+0x1c/0x140
[ 3656.303751][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3656.303751][   T73]      addrconf_add_dev+0xe2/0x170
[ 3656.303751][   T73]      inet6_addr_add+0x12f/0xa40
[ 3656.303751][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3656.303751][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3656.303751][   T73]      netlink_rcv_skb+0x130/0x360
[ 3656.303751][   T73]      netlink_unicast+0x449/0x710
[ 3656.303751][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3656.303751][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3656.303751][   T73]      ___sys_sendmsg+0xee/0x170
[ 3656.303751][   T73]      __sys_sendmsg+0xcd/0x170
[ 3656.303751][   T73]      do_syscall_64+0xc6/0x1e0
[ 3656.303751][   T73] 
[ 3656.305724][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3656.305724][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3656.305724][   T73]      ipv6_find_idev+0x102/0x170
[ 3656.305724][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3656.305724][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3656.305724][   T73]      netlink_rcv_skb+0x130/0x360
[ 3656.305724][   T73]      netlink_unicast+0x449/0x710
[ 3656.305724][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3656.305724][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3656.305724][   T73]      ___sys_sendmsg+0xee/0x170
[ 3656.305724][   T73]      __sys_sendmsg+0xcd/0x170
[ 3656.305724][   T73]      do_syscall_64+0xc6/0x1e0
[ 3656.305724][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3656.305724][   T73] 
[ 3656.307285][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3656.307285][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3656.307285][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3656.307285][   T73]      ipv6_find_idev+0x102/0x170
[ 3656.307285][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3656.307285][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3656.307285][   T73]      netlink_rcv_skb+0x130/0x360
[ 3656.307285][   T73]      netlink_unicast+0x449/0x710
[ 3656.307285][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3656.307285][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3656.307285][   T73]      ___sys_sendmsg+0xee/0x170
[ 3656.307285][   T73]      __sys_sendmsg+0xcd/0x170
[ 3656.307285][   T73]      do_syscall_64+0xc6/0x1e0
[ 3656.307285][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3656.307285][   T73] 
[ 3656.309005][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3656.309292][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3656.309292][   T73]      netdev_get_by_index+0x5e/0x80
[ 3656.309292][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3656.309292][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3656.309292][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3656.309292][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3656.309292][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3656.309292][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3656.309292][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3656.309292][   T73]      addrconf_dad_begin+0x310/0x670
[ 3656.309292][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3656.309292][   T73]      process_one_work+0x84d/0x18a0
[ 3656.309292][   T73]      worker_thread+0x587/0xd30
[ 3656.309292][   T73]      kthread+0x28a/0x350
[ 3656.309292][   T73]      ret_from_fork+0x31/0x70
[ 3656.309292][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3656.309292][   T73] 
[ 3656.311222][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3656.311222][   T73]      netdev_get_by_index+0x5e/0x80
[ 3656.311222][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3656.311222][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3656.311222][   T73]      ip6_route_add+0x1c/0x140
[ 3656.311222][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3656.311222][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3656.311222][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3656.311222][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3656.311222][   T73]      netlink_rcv_skb+0x130/0x360
[ 3656.311222][   T73]      netlink_unicast+0x449/0x710
[ 3656.311222][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3656.311222][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3656.311222][   T73]      ___sys_sendmsg+0xee/0x170
[ 3656.311222][   T73]      __sys_sendmsg+0xcd/0x170
[ 3656.311222][   T73]      do_syscall_64+0xc6/0x1e0
[ 3656.311222][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3656.311222][   T73] 
[ 3656.313252][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3656.313252][   T73]      netdev_get_by_index+0x5e/0x80
[ 3656.313252][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3656.313252][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3656.313252][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3656.313252][   T73]      ipv6_add_addr+0x411/0x2000
[ 3656.313252][   T73]      inet6_addr_add+0x30e/0xa40
[ 3656.313252][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3656.313252][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3656.313252][   T73]      netlink_rcv_skb+0x130/0x360
[ 3656.313252][   T73]      netlink_unicast+0x449/0x710
[ 3656.313252][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3656.313252][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3656.313252][   T73]      ___sys_sendmsg+0xee/0x170
[ 3656.313252][   T73]      __sys_sendmsg+0xcd/0x170
[ 3656.313252][   T73]      do_syscall_64+0xc6/0x1e0
[ 3656.313252][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3656.313252][   T73] 
[ 3656.315283][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3656.315283][   T73]      netdev_get_by_index+0x5e/0x80
[ 3656.315283][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3656.315283][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3656.315283][   T73]      ip6_route_add+0x1c/0x140
[ 3656.315283][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3656.315283][   T73]      addrconf_add_dev+0xe2/0x170
[ 3656.315283][   T73]      inet6_addr_add+0x12f/0xa40
[ 3656.315283][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3656.315283][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3656.315283][   T73]      netlink_rcv_skb+0x130/0x360
[ 3656.315283][   T73]      netlink_unicast+0x449/0x710
[ 3656.315283][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3656.315283][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3656.315283][   T73]      ___sys_sendmsg+0xee/0x170
[ 3656.315283][   T73]      __sys_sendmsg+0xcd/0x170
[ 3656.315283][   T73]      do_syscall_64+0xc6/0x1e0
[ 3656.315283][   T73] 
[ 3656.317251][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3656.317251][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3656.317251][   T73]      ipv6_find_idev+0x102/0x170
[ 3656.317251][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3656.317251][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3656.317251][   T73]      netlink_rcv_skb+0x130/0x360
[ 3656.317251][   T73]      netlink_unicast+0x449/0x710
[ 3656.317251][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3656.317251][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3656.317251][   T73]      ___sys_sendmsg+0xee/0x170
[ 3656.317251][   T73]      __sys_sendmsg+0xcd/0x170
[ 3656.317251][   T73]      do_syscall_64+0xc6/0x1e0
[ 3656.317251][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3656.317251][   T73] 
[ 3656.318808][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3656.318808][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3656.318808][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3656.318808][   T73]      ipv6_find_idev+0x102/0x170
[ 3656.318808][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3656.318808][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3656.318808][   T73]      netlink_rcv_skb+0x130/0x360
[ 3656.318808][   T73]      netlink_unicast+0x449/0x710
[ 3656.318808][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3656.318808][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3656.318808][   T73]      ___sys_sendmsg+0xee/0x170
[ 3656.318808][   T73]      __sys_sendmsg+0xcd/0x170
[ 3656.318808][   T73]      do_syscall_64+0xc6/0x1e0
[ 3656.318808][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3656.318808][   T73] 
[ 3656.320519][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3656.320800][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3656.320800][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3656.320800][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3656.320800][   T73]      fib6_nh_init+0xa22/0x1580
[ 3656.320800][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3656.320800][   T73]      ip6_route_add+0x1c/0x140
[ 3656.320800][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3656.320800][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3656.320800][   T73]      netlink_rcv_skb+0x130/0x360
[ 3656.320800][   T73]      netlink_unicast+0x449/0x710
[ 3656.320800][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3656.320800][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3656.320800][   T73]      ___sys_sendmsg+0xee/0x170
[ 3656.320800][   T73]      __sys_sendmsg+0xcd/0x170
[ 3656.320800][   T73]      do_syscall_64+0xc6/0x1e0
[ 3656.320800][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3656.320800][   T73] 
[ 3656.322973][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3656.322973][   T73]      dst_init+0x84/0x4a0
[ 3656.322973][   T73]      dst_alloc+0x97/0x150
[ 3656.322973][   T73]      ip6_dst_alloc+0x23/0x90
[ 3656.322973][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3656.322973][   T73]      ip6_pol_route+0x56f/0x840
[ 3656.322973][   T73]      fib6_rule_lookup+0x456/0x630
[ 3656.322973][   T73]      ip6_route_input+0x59c/0xa50
[ 3656.322973][   T73]      ipv6_rcv+0x397/0x810
[ 3656.322973][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3656.322973][   T73]      process_backlog+0x101/0x620
[ 3656.322973][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3656.322973][   T73]      net_rx_action+0x495/0xbe0
[ 3656.322973][   T73]      __do_softirq+0x1b5/0x7f6
[ 3656.322973][   T73] 
[ 3656.324890][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3656.324890][   T73]      netdev_get_by_index+0x5e/0x80
[ 3656.324890][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3656.324890][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3656.324890][   T73]      ip6_route_add+0x1c/0x140
[ 3656.324890][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3656.324890][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3656.324890][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3656.324890][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3656.324890][   T73]      netlink_rcv_skb+0x130/0x360
[ 3656.324890][   T73]      netlink_unicast+0x449/0x710
[ 3656.324890][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3656.324890][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3656.324890][   T73]      ___sys_sendmsg+0xee/0x170
[ 3656.324890][   T73]      __sys_sendmsg+0xcd/0x170
[ 3656.324890][   T73]      do_syscall_64+0xc6/0x1e0
[ 3656.324890][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3656.324890][   T73] 
[ 3656.327142][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3656.327142][   T73]      netdev_get_by_index+0x5e/0x80
[ 3656.327142][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3656.327142][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3656.327142][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3656.327142][   T73]      ipv6_add_addr+0x411/0x2000
[ 3656.327142][   T73]      inet6_addr_add+0x30e/0xa40
[ 3656.327142][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3656.327142][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3656.327142][   T73]      netlink_rcv_skb+0x130/0x360
[ 3656.327142][   T73]      netlink_unicast+0x449/0x710
[ 3656.327142][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3656.327142][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3656.327142][   T73]      ___sys_sendmsg+0xee/0x170
[ 3656.327142][   T73]      __sys_sendmsg+0xcd/0x170
[ 3656.327142][   T73]      do_syscall_64+0xc6/0x1e0
[ 3656.327142][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3656.327142][   T73] 
[ 3656.329417][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3656.329417][   T73]      netdev_get_by_index+0x5e/0x80
[ 3656.329417][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3656.329417][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3656.329417][   T73]      ip6_route_add+0x1c/0x140
[ 3656.329417][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3656.329417][   T73]      addrconf_add_dev+0xe2/0x170
[ 3656.329417][   T73]      inet6_addr_add+0x12f/0xa40
[ 3656.329417][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3656.329417][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3656.329417][   T73]      netlink_rcv_skb+0x130/0x360
[ 3656.329417][   T73]      netlink_unicast+0x449/0x710
[ 3656.329417][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3656.329417][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3656.329417][   T73]      ___sys_sendmsg+0xee/0x170
[ 3656.329417][   T73]      __sys_sendmsg+0xcd/0x170
[ 3656.329417][   T73]      do_syscall_64+0xc6/0x1e0
[ 3656.329417][   T73] 
[ 3656.331560][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3656.331560][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3656.331560][   T73]      ipv6_find_idev+0x102/0x170
[ 3656.331560][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3656.331560][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3656.331560][   T73]      netlink_rcv_skb+0x130/0x360
[ 3656.331560][   T73]      netlink_unicast+0x449/0x710
[ 3656.331560][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3656.331560][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3656.331560][   T73]      ___sys_sendmsg+0xee/0x170
[ 3656.331560][   T73]      __sys_sendmsg+0xcd/0x170
[ 3656.331560][   T73]      do_syscall_64+0xc6/0x1e0
[ 3656.331560][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3656.331560][   T73] 
[ 3656.333283][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3656.333283][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3656.333283][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3656.333283][   T73]      ipv6_find_idev+0x102/0x170
[ 3656.333283][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3656.333283][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3656.333283][   T73]      netlink_rcv_skb+0x130/0x360
[ 3656.333283][   T73]      netlink_unicast+0x449/0x710
[ 3656.333283][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3656.333283][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3656.333283][   T73]      ___sys_sendmsg+0xee/0x170
[ 3656.333283][   T73]      __sys_sendmsg+0xcd/0x170
[ 3656.333283][   T73]      do_syscall_64+0xc6/0x1e0
[ 3656.333283][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3656.333283][   T73] 
[ 3656.335226][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3656.335508][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3656.335508][   T73]      netdev_get_by_index+0x5e/0x80
[ 3656.335508][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3656.335508][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3656.335508][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3656.335508][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3656.335508][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3656.335508][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3656.335508][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3656.335508][   T73]      addrconf_dad_begin+0x310/0x670
[ 3656.335508][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3656.335508][   T73]      process_one_work+0x84d/0x18a0
[ 3656.335508][   T73]      worker_thread+0x587/0xd30
[ 3656.335508][   T73]      kthread+0x28a/0x350
[ 3656.335508][   T73]      ret_from_fork+0x31/0x70
[ 3656.335508][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3656.335508][   T73] 
[ 3656.337692][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3656.337692][   T73]      netdev_get_by_index+0x5e/0x80
[ 3656.337692][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3656.337692][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3656.337692][   T73]      ip6_route_add+0x1c/0x140
[ 3656.337692][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3656.337692][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3656.337692][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3656.337692][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3656.337692][   T73]      netlink_rcv_skb+0x130/0x360
[ 3656.337692][   T73]      netlink_unicast+0x449/0x710
[ 3656.337692][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3656.337692][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3656.337692][   T73]      ___sys_sendmsg+0xee/0x170
[ 3656.337692][   T73]      __sys_sendmsg+0xcd/0x170
[ 3656.337692][   T73]      do_syscall_64+0xc6/0x1e0
[ 3656.337692][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3656.337692][   T73] 
[ 3656.339959][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3656.339959][   T73]      netdev_get_by_index+0x5e/0x80
[ 3656.339959][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3656.339959][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3656.339959][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3656.339959][   T73]      ipv6_add_addr+0x411/0x2000
[ 3656.339959][   T73]      inet6_addr_add+0x30e/0xa40
[ 3656.339959][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3656.339959][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3656.339959][   T73]      netlink_rcv_skb+0x130/0x360
[ 3656.339959][   T73]      netlink_unicast+0x449/0x710
[ 3656.339959][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3656.339959][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3656.339959][   T73]      ___sys_sendmsg+0xee/0x170
[ 3656.339959][   T73]      __sys_sendmsg+0xcd/0x170
[ 3656.339959][   T73]      do_syscall_64+0xc6/0x1e0
[ 3656.339959][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3656.339959][   T73] 
[ 3656.342157][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3656.342157][   T73]      netdev_get_by_index+0x5e/0x80
[ 3656.342157][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3656.342157][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3656.342157][   T73]      ip6_route_add+0x1c/0x140
[ 3656.342157][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3656.342157][   T73]      addrconf_add_dev+0xe2/0x170
[ 3656.342157][   T73]      inet6_addr_add+0x12f/0xa40
[ 3656.342157][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3656.342157][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3656.342157][   T73]      netlink_rcv_skb+0x130/0x360
[ 3656.342157][   T73]      netlink_unicast+0x449/0x710
[ 3656.342157][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3656.342157][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3656.342157][   T73]      ___sys_sendmsg+0xee/0x170
[ 3656.342157][   T73]      __sys_sendmsg+0xcd/0x170
[ 3656.342157][   T73]      do_syscall_64+0xc6/0x1e0
[ 3656.342157][   T73] 
[ 3656.344464][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3656.344464][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3656.344464][   T73]      ipv6_find_idev+0x102/0x170
[ 3656.344464][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3656.344464][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3656.344464][   T73]      netlink_rcv_skb+0x130/0x360
[ 3656.344464][   T73]      netlink_unicast+0x449/0x710
[ 3656.344464][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3656.344464][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3656.344464][   T73]      ___sys_sendmsg+0xee/0x170
[ 3656.344464][   T73]      __sys_sendmsg+0xcd/0x170
[ 3656.344464][   T73]      do_syscall_64+0xc6/0x1e0
[ 3656.344464][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3656.344464][   T73] 
[ 3656.346212][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3656.346212][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3656.346212][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3656.346212][   T73]      ipv6_find_idev+0x102/0x170
[ 3656.346212][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3656.346212][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3656.346212][   T73]      netlink_rcv_skb+0x130/0x360
[ 3656.346212][   T73]      netlink_unicast+0x449/0x710
[ 3656.346212][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3656.346212][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3656.346212][   T73]      ___sys_sendmsg+0xee/0x170
[ 3656.346212][   T73]      __sys_sendmsg+0xcd/0x170
[ 3656.346212][   T73]      do_syscall_64+0xc6/0x1e0
[ 3656.346212][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3656.346212][   T73] 
[ 3666.431823][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3666.432279][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3666.432279][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3666.432279][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3666.432279][   T73]      fib6_nh_init+0xa22/0x1580
[ 3666.432279][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3666.432279][   T73]      ip6_route_add+0x1c/0x140
[ 3666.432279][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3666.432279][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3666.432279][   T73]      netlink_rcv_skb+0x130/0x360
[ 3666.432279][   T73]      netlink_unicast+0x449/0x710
[ 3666.432279][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3666.432279][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3666.432279][   T73]      ___sys_sendmsg+0xee/0x170
[ 3666.432279][   T73]      __sys_sendmsg+0xcd/0x170
[ 3666.432279][   T73]      do_syscall_64+0xc6/0x1e0
[ 3666.432279][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3666.432279][   T73] 
[ 3666.434205][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3666.434205][   T73]      dst_init+0x84/0x4a0
[ 3666.434205][   T73]      dst_alloc+0x97/0x150
[ 3666.434205][   T73]      ip6_dst_alloc+0x23/0x90
[ 3666.434205][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3666.434205][   T73]      ip6_pol_route+0x56f/0x840
[ 3666.434205][   T73]      fib6_rule_lookup+0x456/0x630
[ 3666.434205][   T73]      ip6_route_input+0x59c/0xa50
[ 3666.434205][   T73]      ipv6_rcv+0x397/0x810
[ 3666.434205][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3666.434205][   T73]      process_backlog+0x101/0x620
[ 3666.434205][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3666.434205][   T73]      net_rx_action+0x495/0xbe0
[ 3666.434205][   T73]      __do_softirq+0x1b5/0x7f6
[ 3666.434205][   T73] 
[ 3666.435881][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3666.435881][   T73]      netdev_get_by_index+0x5e/0x80
[ 3666.435881][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3666.435881][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3666.435881][   T73]      ip6_route_add+0x1c/0x140
[ 3666.435881][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3666.435881][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3666.435881][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3666.435881][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3666.435881][   T73]      netlink_rcv_skb+0x130/0x360
[ 3666.435881][   T73]      netlink_unicast+0x449/0x710
[ 3666.435881][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3666.435881][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3666.435881][   T73]      ___sys_sendmsg+0xee/0x170
[ 3666.435881][   T73]      __sys_sendmsg+0xcd/0x170
[ 3666.435881][   T73]      do_syscall_64+0xc6/0x1e0
[ 3666.435881][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3666.435881][   T73] 
[ 3666.437916][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3666.437916][   T73]      netdev_get_by_index+0x5e/0x80
[ 3666.437916][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3666.437916][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3666.437916][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3666.437916][   T73]      ipv6_add_addr+0x411/0x2000
[ 3666.437916][   T73]      inet6_addr_add+0x30e/0xa40
[ 3666.437916][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3666.437916][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3666.437916][   T73]      netlink_rcv_skb+0x130/0x360
[ 3666.437916][   T73]      netlink_unicast+0x449/0x710
[ 3666.437916][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3666.437916][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3666.437916][   T73]      ___sys_sendmsg+0xee/0x170
[ 3666.437916][   T73]      __sys_sendmsg+0xcd/0x170
[ 3666.437916][   T73]      do_syscall_64+0xc6/0x1e0
[ 3666.437916][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3666.437916][   T73] 
[ 3666.439931][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3666.439931][   T73]      netdev_get_by_index+0x5e/0x80
[ 3666.439931][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3666.439931][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3666.439931][   T73]      ip6_route_add+0x1c/0x140
[ 3666.439931][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3666.439931][   T73]      addrconf_add_dev+0xe2/0x170
[ 3666.439931][   T73]      inet6_addr_add+0x12f/0xa40
[ 3666.439931][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3666.439931][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3666.439931][   T73]      netlink_rcv_skb+0x130/0x360
[ 3666.439931][   T73]      netlink_unicast+0x449/0x710
[ 3666.439931][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3666.439931][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3666.439931][   T73]      ___sys_sendmsg+0xee/0x170
[ 3666.439931][   T73]      __sys_sendmsg+0xcd/0x170
[ 3666.439931][   T73]      do_syscall_64+0xc6/0x1e0
[ 3666.439931][   T73] 
[ 3666.441935][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3666.441935][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3666.441935][   T73]      ipv6_find_idev+0x102/0x170
[ 3666.441935][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3666.441935][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3666.441935][   T73]      netlink_rcv_skb+0x130/0x360
[ 3666.441935][   T73]      netlink_unicast+0x449/0x710
[ 3666.441935][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3666.441935][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3666.441935][   T73]      ___sys_sendmsg+0xee/0x170
[ 3666.441935][   T73]      __sys_sendmsg+0xcd/0x170
[ 3666.441935][   T73]      do_syscall_64+0xc6/0x1e0
[ 3666.441935][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3666.441935][   T73] 
[ 3666.443499][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3666.443499][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3666.443499][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3666.443499][   T73]      ipv6_find_idev+0x102/0x170
[ 3666.443499][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3666.443499][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3666.443499][   T73]      netlink_rcv_skb+0x130/0x360
[ 3666.443499][   T73]      netlink_unicast+0x449/0x710
[ 3666.443499][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3666.443499][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3666.443499][   T73]      ___sys_sendmsg+0xee/0x170
[ 3666.443499][   T73]      __sys_sendmsg+0xcd/0x170
[ 3666.443499][   T73]      do_syscall_64+0xc6/0x1e0
[ 3666.443499][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3666.443499][   T73] 
[ 3666.445220][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3666.445515][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3666.445515][   T73]      netdev_get_by_index+0x5e/0x80
[ 3666.445515][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3666.445515][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3666.445515][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3666.445515][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3666.445515][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3666.445515][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3666.445515][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3666.445515][   T73]      addrconf_dad_begin+0x310/0x670
[ 3666.445515][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3666.445515][   T73]      process_one_work+0x84d/0x18a0
[ 3666.445515][   T73]      worker_thread+0x587/0xd30
[ 3666.445515][   T73]      kthread+0x28a/0x350
[ 3666.445515][   T73]      ret_from_fork+0x31/0x70
[ 3666.445515][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3666.445515][   T73] 
[ 3666.447453][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3666.447453][   T73]      netdev_get_by_index+0x5e/0x80
[ 3666.447453][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3666.447453][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3666.447453][   T73]      ip6_route_add+0x1c/0x140
[ 3666.447453][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3666.447453][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3666.447453][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3666.447453][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3666.447453][   T73]      netlink_rcv_skb+0x130/0x360
[ 3666.447453][   T73]      netlink_unicast+0x449/0x710
[ 3666.447453][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3666.447453][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3666.447453][   T73]      ___sys_sendmsg+0xee/0x170
[ 3666.447453][   T73]      __sys_sendmsg+0xcd/0x170
[ 3666.447453][   T73]      do_syscall_64+0xc6/0x1e0
[ 3666.447453][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3666.447453][   T73] 
[ 3666.449513][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3666.449513][   T73]      netdev_get_by_index+0x5e/0x80
[ 3666.449513][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3666.449513][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3666.449513][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3666.449513][   T73]      ipv6_add_addr+0x411/0x2000
[ 3666.449513][   T73]      inet6_addr_add+0x30e/0xa40
[ 3666.449513][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3666.449513][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3666.449513][   T73]      netlink_rcv_skb+0x130/0x360
[ 3666.449513][   T73]      netlink_unicast+0x449/0x710
[ 3666.449513][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3666.449513][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3666.449513][   T73]      ___sys_sendmsg+0xee/0x170
[ 3666.449513][   T73]      __sys_sendmsg+0xcd/0x170
[ 3666.449513][   T73]      do_syscall_64+0xc6/0x1e0
[ 3666.449513][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3666.449513][   T73] 
[ 3666.451529][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3666.451529][   T73]      netdev_get_by_index+0x5e/0x80
[ 3666.451529][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3666.451529][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3666.451529][   T73]      ip6_route_add+0x1c/0x140
[ 3666.451529][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3666.451529][   T73]      addrconf_add_dev+0xe2/0x170
[ 3666.451529][   T73]      inet6_addr_add+0x12f/0xa40
[ 3666.451529][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3666.451529][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3666.451529][   T73]      netlink_rcv_skb+0x130/0x360
[ 3666.451529][   T73]      netlink_unicast+0x449/0x710
[ 3666.451529][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3666.451529][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3666.451529][   T73]      ___sys_sendmsg+0xee/0x170
[ 3666.451529][   T73]      __sys_sendmsg+0xcd/0x170
[ 3666.451529][   T73]      do_syscall_64+0xc6/0x1e0
[ 3666.451529][   T73] 
[ 3666.453521][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3666.453521][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3666.453521][   T73]      ipv6_find_idev+0x102/0x170
[ 3666.453521][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3666.453521][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3666.453521][   T73]      netlink_rcv_skb+0x130/0x360
[ 3666.453521][   T73]      netlink_unicast+0x449/0x710
[ 3666.453521][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3666.453521][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3666.453521][   T73]      ___sys_sendmsg+0xee/0x170
[ 3666.453521][   T73]      __sys_sendmsg+0xcd/0x170
[ 3666.453521][   T73]      do_syscall_64+0xc6/0x1e0
[ 3666.453521][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3666.453521][   T73] 
[ 3666.455085][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3666.455085][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3666.455085][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3666.455085][   T73]      ipv6_find_idev+0x102/0x170
[ 3666.455085][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3666.455085][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3666.455085][   T73]      netlink_rcv_skb+0x130/0x360
[ 3666.455085][   T73]      netlink_unicast+0x449/0x710
[ 3666.455085][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3666.455085][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3666.455085][   T73]      ___sys_sendmsg+0xee/0x170
[ 3666.455085][   T73]      __sys_sendmsg+0xcd/0x170
[ 3666.455085][   T73]      do_syscall_64+0xc6/0x1e0
[ 3666.455085][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3666.455085][   T73] 
[ 3666.456813][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3666.457090][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3666.457090][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3666.457090][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3666.457090][   T73]      fib6_nh_init+0xa22/0x1580
[ 3666.457090][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3666.457090][   T73]      ip6_route_add+0x1c/0x140
[ 3666.457090][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3666.457090][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3666.457090][   T73]      netlink_rcv_skb+0x130/0x360
[ 3666.457090][   T73]      netlink_unicast+0x449/0x710
[ 3666.457090][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3666.457090][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3666.457090][   T73]      ___sys_sendmsg+0xee/0x170
[ 3666.457090][   T73]      __sys_sendmsg+0xcd/0x170
[ 3666.457090][   T73]      do_syscall_64+0xc6/0x1e0
[ 3666.457090][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3666.457090][   T73] 
[ 3666.459196][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3666.459196][   T73]      dst_init+0x84/0x4a0
[ 3666.459196][   T73]      dst_alloc+0x97/0x150
[ 3666.459196][   T73]      ip6_dst_alloc+0x23/0x90
[ 3666.459196][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3666.459196][   T73]      ip6_pol_route+0x56f/0x840
[ 3666.459196][   T73]      fib6_rule_lookup+0x456/0x630
[ 3666.459196][   T73]      ip6_route_input+0x59c/0xa50
[ 3666.459196][   T73]      ipv6_rcv+0x397/0x810
[ 3666.459196][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3666.459196][   T73]      process_backlog+0x101/0x620
[ 3666.459196][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3666.459196][   T73]      net_rx_action+0x495/0xbe0
[ 3666.459196][   T73]      __do_softirq+0x1b5/0x7f6
[ 3666.459196][   T73] 
[ 3666.461104][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3666.461104][   T73]      netdev_get_by_index+0x5e/0x80
[ 3666.461104][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3666.461104][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3666.461104][   T73]      ip6_route_add+0x1c/0x140
[ 3666.461104][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3666.461104][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3666.461104][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3666.461104][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3666.461104][   T73]      netlink_rcv_skb+0x130/0x360
[ 3666.461104][   T73]      netlink_unicast+0x449/0x710
[ 3666.461104][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3666.461104][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3666.461104][   T73]      ___sys_sendmsg+0xee/0x170
[ 3666.461104][   T73]      __sys_sendmsg+0xcd/0x170
[ 3666.461104][   T73]      do_syscall_64+0xc6/0x1e0
[ 3666.461104][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3666.461104][   T73] 
[ 3666.463375][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3666.463375][   T73]      netdev_get_by_index+0x5e/0x80
[ 3666.463375][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3666.463375][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3666.463375][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3666.463375][   T73]      ipv6_add_addr+0x411/0x2000
[ 3666.463375][   T73]      inet6_addr_add+0x30e/0xa40
[ 3666.463375][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3666.463375][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3666.463375][   T73]      netlink_rcv_skb+0x130/0x360
[ 3666.463375][   T73]      netlink_unicast+0x449/0x710
[ 3666.463375][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3666.463375][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3666.463375][   T73]      ___sys_sendmsg+0xee/0x170
[ 3666.463375][   T73]      __sys_sendmsg+0xcd/0x170
[ 3666.463375][   T73]      do_syscall_64+0xc6/0x1e0
[ 3666.463375][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3666.463375][   T73] 
[ 3666.465664][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3666.465664][   T73]      netdev_get_by_index+0x5e/0x80
[ 3666.465664][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3666.465664][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3666.465664][   T73]      ip6_route_add+0x1c/0x140
[ 3666.465664][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3666.465664][   T73]      addrconf_add_dev+0xe2/0x170
[ 3666.465664][   T73]      inet6_addr_add+0x12f/0xa40
[ 3666.465664][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3666.465664][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3666.465664][   T73]      netlink_rcv_skb+0x130/0x360
[ 3666.465664][   T73]      netlink_unicast+0x449/0x710
[ 3666.465664][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3666.465664][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3666.465664][   T73]      ___sys_sendmsg+0xee/0x170
[ 3666.465664][   T73]      __sys_sendmsg+0xcd/0x170
[ 3666.465664][   T73]      do_syscall_64+0xc6/0x1e0
[ 3666.465664][   T73] 
[ 3666.467849][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3666.467849][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3666.467849][   T73]      ipv6_find_idev+0x102/0x170
[ 3666.467849][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3666.467849][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3666.467849][   T73]      netlink_rcv_skb+0x130/0x360
[ 3666.467849][   T73]      netlink_unicast+0x449/0x710
[ 3666.467849][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3666.467849][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3666.467849][   T73]      ___sys_sendmsg+0xee/0x170
[ 3666.467849][   T73]      __sys_sendmsg+0xcd/0x170
[ 3666.467849][   T73]      do_syscall_64+0xc6/0x1e0
[ 3666.467849][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3666.467849][   T73] 
[ 3666.469587][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3666.469587][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3666.469587][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3666.469587][   T73]      ipv6_find_idev+0x102/0x170
[ 3666.469587][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3666.469587][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3666.469587][   T73]      netlink_rcv_skb+0x130/0x360
[ 3666.469587][   T73]      netlink_unicast+0x449/0x710
[ 3666.469587][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3666.469587][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3666.469587][   T73]      ___sys_sendmsg+0xee/0x170
[ 3666.469587][   T73]      __sys_sendmsg+0xcd/0x170
[ 3666.469587][   T73]      do_syscall_64+0xc6/0x1e0
[ 3666.469587][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3666.469587][   T73] 
[ 3666.471535][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3666.472251][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3666.472251][   T73]      netdev_get_by_index+0x5e/0x80
[ 3666.472251][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3666.472251][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3666.472251][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3666.472251][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3666.472251][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3666.472251][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3666.472251][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3666.472251][   T73]      addrconf_dad_begin+0x310/0x670
[ 3666.472251][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3666.472251][   T73]      process_one_work+0x84d/0x18a0
[ 3666.472251][   T73]      worker_thread+0x587/0xd30
[ 3666.472251][   T73]      kthread+0x28a/0x350
[ 3666.472251][   T73]      ret_from_fork+0x31/0x70
[ 3666.472251][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3666.472251][   T73] 
[ 3666.474200][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3666.474200][   T73]      netdev_get_by_index+0x5e/0x80
[ 3666.474200][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3666.474200][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3666.474200][   T73]      ip6_route_add+0x1c/0x140
[ 3666.474200][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3666.474200][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3666.474200][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3666.474200][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3666.474200][   T73]      netlink_rcv_skb+0x130/0x360
[ 3666.474200][   T73]      netlink_unicast+0x449/0x710
[ 3666.474200][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3666.474200][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3666.474200][   T73]      ___sys_sendmsg+0xee/0x170
[ 3666.474200][   T73]      __sys_sendmsg+0xcd/0x170
[ 3666.474200][   T73]      do_syscall_64+0xc6/0x1e0
[ 3666.474200][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3666.474200][   T73] 
[ 3666.476343][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3666.476343][   T73]      netdev_get_by_index+0x5e/0x80
[ 3666.476343][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3666.476343][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3666.476343][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3666.476343][   T73]      ipv6_add_addr+0x411/0x2000
[ 3666.476343][   T73]      inet6_addr_add+0x30e/0xa40
[ 3666.476343][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3666.476343][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3666.476343][   T73]      netlink_rcv_skb+0x130/0x360
[ 3666.476343][   T73]      netlink_unicast+0x449/0x710
[ 3666.476343][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3666.476343][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3666.476343][   T73]      ___sys_sendmsg+0xee/0x170
[ 3666.476343][   T73]      __sys_sendmsg+0xcd/0x170
[ 3666.476343][   T73]      do_syscall_64+0xc6/0x1e0
[ 3666.476343][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3666.476343][   T73] 
[ 3666.478617][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3666.478617][   T73]      netdev_get_by_index+0x5e/0x80
[ 3666.478617][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3666.478617][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3666.478617][   T73]      ip6_route_add+0x1c/0x140
[ 3666.478617][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3666.478617][   T73]      addrconf_add_dev+0xe2/0x170
[ 3666.478617][   T73]      inet6_addr_add+0x12f/0xa40
[ 3666.478617][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3666.478617][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3666.478617][   T73]      netlink_rcv_skb+0x130/0x360
[ 3666.478617][   T73]      netlink_unicast+0x449/0x710
[ 3666.478617][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3666.478617][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3666.478617][   T73]      ___sys_sendmsg+0xee/0x170
[ 3666.478617][   T73]      __sys_sendmsg+0xcd/0x170
[ 3666.478617][   T73]      do_syscall_64+0xc6/0x1e0
[ 3666.478617][   T73] 
[ 3666.480785][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3666.480785][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3666.480785][   T73]      ipv6_find_idev+0x102/0x170
[ 3666.480785][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3666.480785][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3666.480785][   T73]      netlink_rcv_skb+0x130/0x360
[ 3666.480785][   T73]      netlink_unicast+0x449/0x710
[ 3666.480785][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3666.480785][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3666.480785][   T73]      ___sys_sendmsg+0xee/0x170
[ 3666.480785][   T73]      __sys_sendmsg+0xcd/0x170
[ 3666.480785][   T73]      do_syscall_64+0xc6/0x1e0
[ 3666.480785][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3666.480785][   T73] 
[ 3666.482570][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3666.482570][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3666.482570][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3666.482570][   T73]      ipv6_find_idev+0x102/0x170
[ 3666.482570][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3666.482570][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3666.482570][   T73]      netlink_rcv_skb+0x130/0x360
[ 3666.482570][   T73]      netlink_unicast+0x449/0x710
[ 3666.482570][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3666.482570][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3666.482570][   T73]      ___sys_sendmsg+0xee/0x170
[ 3666.482570][   T73]      __sys_sendmsg+0xcd/0x170
[ 3666.482570][   T73]      do_syscall_64+0xc6/0x1e0
[ 3666.482570][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3666.482570][   T73] 
[ 3676.655768][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3676.656208][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3676.656208][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3676.656208][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3676.656208][   T73]      fib6_nh_init+0xa22/0x1580
[ 3676.656208][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3676.656208][   T73]      ip6_route_add+0x1c/0x140
[ 3676.656208][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3676.656208][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3676.656208][   T73]      netlink_rcv_skb+0x130/0x360
[ 3676.656208][   T73]      netlink_unicast+0x449/0x710
[ 3676.656208][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3676.656208][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3676.656208][   T73]      ___sys_sendmsg+0xee/0x170
[ 3676.656208][   T73]      __sys_sendmsg+0xcd/0x170
[ 3676.656208][   T73]      do_syscall_64+0xc6/0x1e0
[ 3676.656208][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3676.656208][   T73] 
[ 3676.658168][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3676.658168][   T73]      dst_init+0x84/0x4a0
[ 3676.658168][   T73]      dst_alloc+0x97/0x150
[ 3676.658168][   T73]      ip6_dst_alloc+0x23/0x90
[ 3676.658168][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3676.658168][   T73]      ip6_pol_route+0x56f/0x840
[ 3676.658168][   T73]      fib6_rule_lookup+0x456/0x630
[ 3676.658168][   T73]      ip6_route_input+0x59c/0xa50
[ 3676.658168][   T73]      ipv6_rcv+0x397/0x810
[ 3676.658168][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3676.658168][   T73]      process_backlog+0x101/0x620
[ 3676.658168][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3676.658168][   T73]      net_rx_action+0x495/0xbe0
[ 3676.658168][   T73]      __do_softirq+0x1b5/0x7f6
[ 3676.658168][   T73] 
[ 3676.659834][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3676.659834][   T73]      netdev_get_by_index+0x5e/0x80
[ 3676.659834][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3676.659834][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3676.659834][   T73]      ip6_route_add+0x1c/0x140
[ 3676.659834][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3676.659834][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3676.659834][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3676.659834][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3676.659834][   T73]      netlink_rcv_skb+0x130/0x360
[ 3676.659834][   T73]      netlink_unicast+0x449/0x710
[ 3676.659834][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3676.659834][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3676.659834][   T73]      ___sys_sendmsg+0xee/0x170
[ 3676.659834][   T73]      __sys_sendmsg+0xcd/0x170
[ 3676.659834][   T73]      do_syscall_64+0xc6/0x1e0
[ 3676.659834][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3676.659834][   T73] 
[ 3676.661847][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3676.661847][   T73]      netdev_get_by_index+0x5e/0x80
[ 3676.661847][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3676.661847][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3676.661847][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3676.661847][   T73]      ipv6_add_addr+0x411/0x2000
[ 3676.661847][   T73]      inet6_addr_add+0x30e/0xa40
[ 3676.661847][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3676.661847][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3676.661847][   T73]      netlink_rcv_skb+0x130/0x360
[ 3676.661847][   T73]      netlink_unicast+0x449/0x710
[ 3676.661847][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3676.661847][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3676.661847][   T73]      ___sys_sendmsg+0xee/0x170
[ 3676.661847][   T73]      __sys_sendmsg+0xcd/0x170
[ 3676.661847][   T73]      do_syscall_64+0xc6/0x1e0
[ 3676.661847][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3676.661847][   T73] 
[ 3676.663850][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3676.663850][   T73]      netdev_get_by_index+0x5e/0x80
[ 3676.663850][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3676.663850][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3676.663850][   T73]      ip6_route_add+0x1c/0x140
[ 3676.663850][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3676.663850][   T73]      addrconf_add_dev+0xe2/0x170
[ 3676.663850][   T73]      inet6_addr_add+0x12f/0xa40
[ 3676.663850][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3676.663850][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3676.663850][   T73]      netlink_rcv_skb+0x130/0x360
[ 3676.663850][   T73]      netlink_unicast+0x449/0x710
[ 3676.663850][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3676.663850][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3676.663850][   T73]      ___sys_sendmsg+0xee/0x170
[ 3676.663850][   T73]      __sys_sendmsg+0xcd/0x170
[ 3676.663850][   T73]      do_syscall_64+0xc6/0x1e0
[ 3676.663850][   T73] 
[ 3676.665813][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3676.665813][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3676.665813][   T73]      ipv6_find_idev+0x102/0x170
[ 3676.665813][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3676.665813][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3676.665813][   T73]      netlink_rcv_skb+0x130/0x360
[ 3676.665813][   T73]      netlink_unicast+0x449/0x710
[ 3676.665813][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3676.665813][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3676.665813][   T73]      ___sys_sendmsg+0xee/0x170
[ 3676.665813][   T73]      __sys_sendmsg+0xcd/0x170
[ 3676.665813][   T73]      do_syscall_64+0xc6/0x1e0
[ 3676.665813][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3676.665813][   T73] 
[ 3676.667359][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3676.667359][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3676.667359][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3676.667359][   T73]      ipv6_find_idev+0x102/0x170
[ 3676.667359][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3676.667359][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3676.667359][   T73]      netlink_rcv_skb+0x130/0x360
[ 3676.667359][   T73]      netlink_unicast+0x449/0x710
[ 3676.667359][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3676.667359][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3676.667359][   T73]      ___sys_sendmsg+0xee/0x170
[ 3676.667359][   T73]      __sys_sendmsg+0xcd/0x170
[ 3676.667359][   T73]      do_syscall_64+0xc6/0x1e0
[ 3676.667359][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3676.667359][   T73] 
[ 3676.669066][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3676.669350][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3676.669350][   T73]      netdev_get_by_index+0x5e/0x80
[ 3676.669350][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3676.669350][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3676.669350][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3676.669350][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3676.669350][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3676.669350][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3676.669350][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3676.669350][   T73]      addrconf_dad_begin+0x310/0x670
[ 3676.669350][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3676.669350][   T73]      process_one_work+0x84d/0x18a0
[ 3676.669350][   T73]      worker_thread+0x587/0xd30
[ 3676.669350][   T73]      kthread+0x28a/0x350
[ 3676.669350][   T73]      ret_from_fork+0x31/0x70
[ 3676.669350][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3676.669350][   T73] 
[ 3676.671396][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3676.671396][   T73]      netdev_get_by_index+0x5e/0x80
[ 3676.671396][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3676.671396][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3676.671396][   T73]      ip6_route_add+0x1c/0x140
[ 3676.671396][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3676.671396][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3676.671396][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3676.671396][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3676.671396][   T73]      netlink_rcv_skb+0x130/0x360
[ 3676.671396][   T73]      netlink_unicast+0x449/0x710
[ 3676.671396][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3676.671396][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3676.671396][   T73]      ___sys_sendmsg+0xee/0x170
[ 3676.671396][   T73]      __sys_sendmsg+0xcd/0x170
[ 3676.671396][   T73]      do_syscall_64+0xc6/0x1e0
[ 3676.671396][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3676.671396][   T73] 
[ 3676.673391][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3676.673391][   T73]      netdev_get_by_index+0x5e/0x80
[ 3676.673391][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3676.673391][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3676.673391][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3676.673391][   T73]      ipv6_add_addr+0x411/0x2000
[ 3676.673391][   T73]      inet6_addr_add+0x30e/0xa40
[ 3676.673391][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3676.673391][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3676.673391][   T73]      netlink_rcv_skb+0x130/0x360
[ 3676.673391][   T73]      netlink_unicast+0x449/0x710
[ 3676.673391][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3676.673391][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3676.673391][   T73]      ___sys_sendmsg+0xee/0x170
[ 3676.673391][   T73]      __sys_sendmsg+0xcd/0x170
[ 3676.673391][   T73]      do_syscall_64+0xc6/0x1e0
[ 3676.673391][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3676.673391][   T73] 
[ 3676.675411][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3676.675411][   T73]      netdev_get_by_index+0x5e/0x80
[ 3676.675411][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3676.675411][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3676.675411][   T73]      ip6_route_add+0x1c/0x140
[ 3676.675411][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3676.675411][   T73]      addrconf_add_dev+0xe2/0x170
[ 3676.675411][   T73]      inet6_addr_add+0x12f/0xa40
[ 3676.675411][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3676.675411][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3676.675411][   T73]      netlink_rcv_skb+0x130/0x360
[ 3676.675411][   T73]      netlink_unicast+0x449/0x710
[ 3676.675411][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3676.675411][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3676.675411][   T73]      ___sys_sendmsg+0xee/0x170
[ 3676.675411][   T73]      __sys_sendmsg+0xcd/0x170
[ 3676.675411][   T73]      do_syscall_64+0xc6/0x1e0
[ 3676.675411][   T73] 
[ 3676.677378][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3676.677378][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3676.677378][   T73]      ipv6_find_idev+0x102/0x170
[ 3676.677378][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3676.677378][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3676.677378][   T73]      netlink_rcv_skb+0x130/0x360
[ 3676.677378][   T73]      netlink_unicast+0x449/0x710
[ 3676.677378][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3676.677378][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3676.677378][   T73]      ___sys_sendmsg+0xee/0x170
[ 3676.677378][   T73]      __sys_sendmsg+0xcd/0x170
[ 3676.677378][   T73]      do_syscall_64+0xc6/0x1e0
[ 3676.677378][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3676.677378][   T73] 
[ 3676.678926][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3676.678926][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3676.678926][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3676.678926][   T73]      ipv6_find_idev+0x102/0x170
[ 3676.678926][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3676.678926][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3676.678926][   T73]      netlink_rcv_skb+0x130/0x360
[ 3676.678926][   T73]      netlink_unicast+0x449/0x710
[ 3676.678926][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3676.678926][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3676.678926][   T73]      ___sys_sendmsg+0xee/0x170
[ 3676.678926][   T73]      __sys_sendmsg+0xcd/0x170
[ 3676.678926][   T73]      do_syscall_64+0xc6/0x1e0
[ 3676.678926][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3676.678926][   T73] 
[ 3676.680620][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3676.680910][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3676.680910][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3676.680910][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3676.680910][   T73]      fib6_nh_init+0xa22/0x1580
[ 3676.680910][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3676.680910][   T73]      ip6_route_add+0x1c/0x140
[ 3676.680910][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3676.680910][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3676.680910][   T73]      netlink_rcv_skb+0x130/0x360
[ 3676.680910][   T73]      netlink_unicast+0x449/0x710
[ 3676.680910][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3676.680910][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3676.680910][   T73]      ___sys_sendmsg+0xee/0x170
[ 3676.680910][   T73]      __sys_sendmsg+0xcd/0x170
[ 3676.680910][   T73]      do_syscall_64+0xc6/0x1e0
[ 3676.680910][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3676.680910][   T73] 
[ 3676.682991][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3676.682991][   T73]      dst_init+0x84/0x4a0
[ 3676.682991][   T73]      dst_alloc+0x97/0x150
[ 3676.682991][   T73]      ip6_dst_alloc+0x23/0x90
[ 3676.682991][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3676.682991][   T73]      ip6_pol_route+0x56f/0x840
[ 3676.682991][   T73]      fib6_rule_lookup+0x456/0x630
[ 3676.682991][   T73]      ip6_route_input+0x59c/0xa50
[ 3676.682991][   T73]      ipv6_rcv+0x397/0x810
[ 3676.682991][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3676.682991][   T73]      process_backlog+0x101/0x620
[ 3676.682991][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3676.682991][   T73]      net_rx_action+0x495/0xbe0
[ 3676.682991][   T73]      __do_softirq+0x1b5/0x7f6
[ 3676.682991][   T73] 
[ 3676.684877][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3676.684877][   T73]      netdev_get_by_index+0x5e/0x80
[ 3676.684877][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3676.684877][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3676.684877][   T73]      ip6_route_add+0x1c/0x140
[ 3676.684877][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3676.684877][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3676.684877][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3676.684877][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3676.684877][   T73]      netlink_rcv_skb+0x130/0x360
[ 3676.684877][   T73]      netlink_unicast+0x449/0x710
[ 3676.684877][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3676.684877][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3676.684877][   T73]      ___sys_sendmsg+0xee/0x170
[ 3676.684877][   T73]      __sys_sendmsg+0xcd/0x170
[ 3676.684877][   T73]      do_syscall_64+0xc6/0x1e0
[ 3676.684877][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3676.684877][   T73] 
[ 3676.687137][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3676.687137][   T73]      netdev_get_by_index+0x5e/0x80
[ 3676.687137][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3676.687137][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3676.687137][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3676.687137][   T73]      ipv6_add_addr+0x411/0x2000
[ 3676.687137][   T73]      inet6_addr_add+0x30e/0xa40
[ 3676.687137][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3676.687137][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3676.687137][   T73]      netlink_rcv_skb+0x130/0x360
[ 3676.687137][   T73]      netlink_unicast+0x449/0x710
[ 3676.687137][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3676.687137][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3676.687137][   T73]      ___sys_sendmsg+0xee/0x170
[ 3676.687137][   T73]      __sys_sendmsg+0xcd/0x170
[ 3676.687137][   T73]      do_syscall_64+0xc6/0x1e0
[ 3676.687137][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3676.687137][   T73] 
[ 3676.689421][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3676.689421][   T73]      netdev_get_by_index+0x5e/0x80
[ 3676.689421][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3676.689421][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3676.689421][   T73]      ip6_route_add+0x1c/0x140
[ 3676.689421][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3676.689421][   T73]      addrconf_add_dev+0xe2/0x170
[ 3676.689421][   T73]      inet6_addr_add+0x12f/0xa40
[ 3676.689421][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3676.689421][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3676.689421][   T73]      netlink_rcv_skb+0x130/0x360
[ 3676.689421][   T73]      netlink_unicast+0x449/0x710
[ 3676.689421][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3676.689421][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3676.689421][   T73]      ___sys_sendmsg+0xee/0x170
[ 3676.689421][   T73]      __sys_sendmsg+0xcd/0x170
[ 3676.689421][   T73]      do_syscall_64+0xc6/0x1e0
[ 3676.689421][   T73] 
[ 3676.691601][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3676.691601][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3676.691601][   T73]      ipv6_find_idev+0x102/0x170
[ 3676.691601][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3676.691601][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3676.691601][   T73]      netlink_rcv_skb+0x130/0x360
[ 3676.691601][   T73]      netlink_unicast+0x449/0x710
[ 3676.691601][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3676.691601][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3676.691601][   T73]      ___sys_sendmsg+0xee/0x170
[ 3676.691601][   T73]      __sys_sendmsg+0xcd/0x170
[ 3676.691601][   T73]      do_syscall_64+0xc6/0x1e0
[ 3676.691601][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3676.691601][   T73] 
[ 3676.693408][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3676.693408][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3676.693408][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3676.693408][   T73]      ipv6_find_idev+0x102/0x170
[ 3676.693408][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3676.693408][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3676.693408][   T73]      netlink_rcv_skb+0x130/0x360
[ 3676.693408][   T73]      netlink_unicast+0x449/0x710
[ 3676.693408][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3676.693408][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3676.693408][   T73]      ___sys_sendmsg+0xee/0x170
[ 3676.693408][   T73]      __sys_sendmsg+0xcd/0x170
[ 3676.693408][   T73]      do_syscall_64+0xc6/0x1e0
[ 3676.693408][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3676.693408][   T73] 
[ 3676.695348][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3676.695621][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3676.695621][   T73]      netdev_get_by_index+0x5e/0x80
[ 3676.695621][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3676.695621][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3676.695621][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3676.695621][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3676.695621][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3676.695621][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3676.695621][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3676.695621][   T73]      addrconf_dad_begin+0x310/0x670
[ 3676.695621][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3676.695621][   T73]      process_one_work+0x84d/0x18a0
[ 3676.695621][   T73]      worker_thread+0x587/0xd30
[ 3676.695621][   T73]      kthread+0x28a/0x350
[ 3676.695621][   T73]      ret_from_fork+0x31/0x70
[ 3676.695621][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3676.695621][   T73] 
[ 3676.697810][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3676.697810][   T73]      netdev_get_by_index+0x5e/0x80
[ 3676.697810][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3676.697810][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3676.697810][   T73]      ip6_route_add+0x1c/0x140
[ 3676.697810][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3676.697810][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3676.697810][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3676.697810][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3676.697810][   T73]      netlink_rcv_skb+0x130/0x360
[ 3676.697810][   T73]      netlink_unicast+0x449/0x710
[ 3676.697810][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3676.697810][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3676.697810][   T73]      ___sys_sendmsg+0xee/0x170
[ 3676.697810][   T73]      __sys_sendmsg+0xcd/0x170
[ 3676.697810][   T73]      do_syscall_64+0xc6/0x1e0
[ 3676.697810][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3676.697810][   T73] 
[ 3676.700024][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3676.700024][   T73]      netdev_get_by_index+0x5e/0x80
[ 3676.700024][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3676.700024][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3676.700024][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3676.700024][   T73]      ipv6_add_addr+0x411/0x2000
[ 3676.700024][   T73]      inet6_addr_add+0x30e/0xa40
[ 3676.700024][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3676.700024][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3676.700024][   T73]      netlink_rcv_skb+0x130/0x360
[ 3676.700024][   T73]      netlink_unicast+0x449/0x710
[ 3676.700024][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3676.700024][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3676.700024][   T73]      ___sys_sendmsg+0xee/0x170
[ 3676.700024][   T73]      __sys_sendmsg+0xcd/0x170
[ 3676.700024][   T73]      do_syscall_64+0xc6/0x1e0
[ 3676.700024][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3676.700024][   T73] 
[ 3676.702288][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3676.702288][   T73]      netdev_get_by_index+0x5e/0x80
[ 3676.702288][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3676.702288][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3676.702288][   T73]      ip6_route_add+0x1c/0x140
[ 3676.702288][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3676.702288][   T73]      addrconf_add_dev+0xe2/0x170
[ 3676.702288][   T73]      inet6_addr_add+0x12f/0xa40
[ 3676.702288][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3676.702288][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3676.702288][   T73]      netlink_rcv_skb+0x130/0x360
[ 3676.702288][   T73]      netlink_unicast+0x449/0x710
[ 3676.702288][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3676.702288][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3676.702288][   T73]      ___sys_sendmsg+0xee/0x170
[ 3676.702288][   T73]      __sys_sendmsg+0xcd/0x170
[ 3676.702288][   T73]      do_syscall_64+0xc6/0x1e0
[ 3676.702288][   T73] 
[ 3676.704570][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3676.704570][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3676.704570][   T73]      ipv6_find_idev+0x102/0x170
[ 3676.704570][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3676.704570][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3676.704570][   T73]      netlink_rcv_skb+0x130/0x360
[ 3676.704570][   T73]      netlink_unicast+0x449/0x710
[ 3676.704570][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3676.704570][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3676.704570][   T73]      ___sys_sendmsg+0xee/0x170
[ 3676.704570][   T73]      __sys_sendmsg+0xcd/0x170
[ 3676.704570][   T73]      do_syscall_64+0xc6/0x1e0
[ 3676.704570][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3676.704570][   T73] 
[ 3676.706317][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3676.706317][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3676.706317][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3676.706317][   T73]      ipv6_find_idev+0x102/0x170
[ 3676.706317][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3676.706317][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3676.706317][   T73]      netlink_rcv_skb+0x130/0x360
[ 3676.706317][   T73]      netlink_unicast+0x449/0x710
[ 3676.706317][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3676.706317][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3676.706317][   T73]      ___sys_sendmsg+0xee/0x170
[ 3676.706317][   T73]      __sys_sendmsg+0xcd/0x170
[ 3676.706317][   T73]      do_syscall_64+0xc6/0x1e0
[ 3676.706317][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3676.706317][   T73] 
[ 3686.943799][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3686.944338][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3686.944338][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3686.944338][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3686.944338][   T73]      fib6_nh_init+0xa22/0x1580
[ 3686.944338][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3686.944338][   T73]      ip6_route_add+0x1c/0x140
[ 3686.944338][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3686.944338][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3686.944338][   T73]      netlink_rcv_skb+0x130/0x360
[ 3686.944338][   T73]      netlink_unicast+0x449/0x710
[ 3686.944338][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3686.944338][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3686.944338][   T73]      ___sys_sendmsg+0xee/0x170
[ 3686.944338][   T73]      __sys_sendmsg+0xcd/0x170
[ 3686.944338][   T73]      do_syscall_64+0xc6/0x1e0
[ 3686.944338][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3686.944338][   T73] 
[ 3686.946281][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3686.946281][   T73]      dst_init+0x84/0x4a0
[ 3686.946281][   T73]      dst_alloc+0x97/0x150
[ 3686.946281][   T73]      ip6_dst_alloc+0x23/0x90
[ 3686.946281][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3686.946281][   T73]      ip6_pol_route+0x56f/0x840
[ 3686.946281][   T73]      fib6_rule_lookup+0x456/0x630
[ 3686.946281][   T73]      ip6_route_input+0x59c/0xa50
[ 3686.946281][   T73]      ipv6_rcv+0x397/0x810
[ 3686.946281][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3686.946281][   T73]      process_backlog+0x101/0x620
[ 3686.946281][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3686.946281][   T73]      net_rx_action+0x495/0xbe0
[ 3686.946281][   T73]      __do_softirq+0x1b5/0x7f6
[ 3686.946281][   T73] 
[ 3686.947977][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3686.947977][   T73]      netdev_get_by_index+0x5e/0x80
[ 3686.947977][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3686.947977][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3686.947977][   T73]      ip6_route_add+0x1c/0x140
[ 3686.947977][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3686.947977][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3686.947977][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3686.947977][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3686.947977][   T73]      netlink_rcv_skb+0x130/0x360
[ 3686.947977][   T73]      netlink_unicast+0x449/0x710
[ 3686.947977][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3686.947977][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3686.947977][   T73]      ___sys_sendmsg+0xee/0x170
[ 3686.947977][   T73]      __sys_sendmsg+0xcd/0x170
[ 3686.947977][   T73]      do_syscall_64+0xc6/0x1e0
[ 3686.947977][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3686.947977][   T73] 
[ 3686.950015][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3686.950015][   T73]      netdev_get_by_index+0x5e/0x80
[ 3686.950015][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3686.950015][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3686.950015][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3686.950015][   T73]      ipv6_add_addr+0x411/0x2000
[ 3686.950015][   T73]      inet6_addr_add+0x30e/0xa40
[ 3686.950015][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3686.950015][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3686.950015][   T73]      netlink_rcv_skb+0x130/0x360
[ 3686.950015][   T73]      netlink_unicast+0x449/0x710
[ 3686.950015][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3686.950015][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3686.950015][   T73]      ___sys_sendmsg+0xee/0x170
[ 3686.950015][   T73]      __sys_sendmsg+0xcd/0x170
[ 3686.950015][   T73]      do_syscall_64+0xc6/0x1e0
[ 3686.950015][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3686.950015][   T73] 
[ 3686.952065][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3686.952065][   T73]      netdev_get_by_index+0x5e/0x80
[ 3686.952065][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3686.952065][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3686.952065][   T73]      ip6_route_add+0x1c/0x140
[ 3686.952065][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3686.952065][   T73]      addrconf_add_dev+0xe2/0x170
[ 3686.952065][   T73]      inet6_addr_add+0x12f/0xa40
[ 3686.952065][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3686.952065][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3686.952065][   T73]      netlink_rcv_skb+0x130/0x360
[ 3686.952065][   T73]      netlink_unicast+0x449/0x710
[ 3686.952065][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3686.952065][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3686.952065][   T73]      ___sys_sendmsg+0xee/0x170
[ 3686.952065][   T73]      __sys_sendmsg+0xcd/0x170
[ 3686.952065][   T73]      do_syscall_64+0xc6/0x1e0
[ 3686.952065][   T73] 
[ 3686.954074][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3686.954074][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3686.954074][   T73]      ipv6_find_idev+0x102/0x170
[ 3686.954074][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3686.954074][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3686.954074][   T73]      netlink_rcv_skb+0x130/0x360
[ 3686.954074][   T73]      netlink_unicast+0x449/0x710
[ 3686.954074][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3686.954074][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3686.954074][   T73]      ___sys_sendmsg+0xee/0x170
[ 3686.954074][   T73]      __sys_sendmsg+0xcd/0x170
[ 3686.954074][   T73]      do_syscall_64+0xc6/0x1e0
[ 3686.954074][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3686.954074][   T73] 
[ 3686.955651][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3686.955651][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3686.955651][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3686.955651][   T73]      ipv6_find_idev+0x102/0x170
[ 3686.955651][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3686.955651][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3686.955651][   T73]      netlink_rcv_skb+0x130/0x360
[ 3686.955651][   T73]      netlink_unicast+0x449/0x710
[ 3686.955651][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3686.955651][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3686.955651][   T73]      ___sys_sendmsg+0xee/0x170
[ 3686.955651][   T73]      __sys_sendmsg+0xcd/0x170
[ 3686.955651][   T73]      do_syscall_64+0xc6/0x1e0
[ 3686.955651][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3686.955651][   T73] 
[ 3686.957412][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3686.957726][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3686.957726][   T73]      netdev_get_by_index+0x5e/0x80
[ 3686.957726][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3686.957726][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3686.957726][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3686.957726][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3686.957726][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3686.957726][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3686.957726][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3686.957726][   T73]      addrconf_dad_begin+0x310/0x670
[ 3686.957726][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3686.957726][   T73]      process_one_work+0x84d/0x18a0
[ 3686.957726][   T73]      worker_thread+0x587/0xd30
[ 3686.957726][   T73]      kthread+0x28a/0x350
[ 3686.957726][   T73]      ret_from_fork+0x31/0x70
[ 3686.957726][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3686.957726][   T73] 
[ 3686.959681][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3686.959681][   T73]      netdev_get_by_index+0x5e/0x80
[ 3686.959681][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3686.959681][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3686.959681][   T73]      ip6_route_add+0x1c/0x140
[ 3686.959681][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3686.959681][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3686.959681][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3686.959681][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3686.959681][   T73]      netlink_rcv_skb+0x130/0x360
[ 3686.959681][   T73]      netlink_unicast+0x449/0x710
[ 3686.959681][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3686.959681][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3686.959681][   T73]      ___sys_sendmsg+0xee/0x170
[ 3686.959681][   T73]      __sys_sendmsg+0xcd/0x170
[ 3686.959681][   T73]      do_syscall_64+0xc6/0x1e0
[ 3686.959681][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3686.959681][   T73] 
[ 3686.961728][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3686.961728][   T73]      netdev_get_by_index+0x5e/0x80
[ 3686.961728][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3686.961728][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3686.961728][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3686.961728][   T73]      ipv6_add_addr+0x411/0x2000
[ 3686.961728][   T73]      inet6_addr_add+0x30e/0xa40
[ 3686.961728][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3686.961728][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3686.961728][   T73]      netlink_rcv_skb+0x130/0x360
[ 3686.961728][   T73]      netlink_unicast+0x449/0x710
[ 3686.961728][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3686.961728][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3686.961728][   T73]      ___sys_sendmsg+0xee/0x170
[ 3686.961728][   T73]      __sys_sendmsg+0xcd/0x170
[ 3686.961728][   T73]      do_syscall_64+0xc6/0x1e0
[ 3686.961728][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3686.961728][   T73] 
[ 3686.963770][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3686.963770][   T73]      netdev_get_by_index+0x5e/0x80
[ 3686.963770][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3686.963770][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3686.963770][   T73]      ip6_route_add+0x1c/0x140
[ 3686.963770][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3686.963770][   T73]      addrconf_add_dev+0xe2/0x170
[ 3686.963770][   T73]      inet6_addr_add+0x12f/0xa40
[ 3686.963770][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3686.963770][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3686.963770][   T73]      netlink_rcv_skb+0x130/0x360
[ 3686.963770][   T73]      netlink_unicast+0x449/0x710
[ 3686.963770][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3686.963770][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3686.963770][   T73]      ___sys_sendmsg+0xee/0x170
[ 3686.963770][   T73]      __sys_sendmsg+0xcd/0x170
[ 3686.963770][   T73]      do_syscall_64+0xc6/0x1e0
[ 3686.963770][   T73] 
[ 3686.965767][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3686.965767][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3686.965767][   T73]      ipv6_find_idev+0x102/0x170
[ 3686.965767][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3686.965767][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3686.965767][   T73]      netlink_rcv_skb+0x130/0x360
[ 3686.965767][   T73]      netlink_unicast+0x449/0x710
[ 3686.965767][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3686.965767][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3686.965767][   T73]      ___sys_sendmsg+0xee/0x170
[ 3686.965767][   T73]      __sys_sendmsg+0xcd/0x170
[ 3686.965767][   T73]      do_syscall_64+0xc6/0x1e0
[ 3686.965767][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3686.965767][   T73] 
[ 3686.967343][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3686.967343][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3686.967343][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3686.967343][   T73]      ipv6_find_idev+0x102/0x170
[ 3686.967343][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3686.967343][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3686.967343][   T73]      netlink_rcv_skb+0x130/0x360
[ 3686.967343][   T73]      netlink_unicast+0x449/0x710
[ 3686.967343][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3686.967343][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3686.967343][   T73]      ___sys_sendmsg+0xee/0x170
[ 3686.967343][   T73]      __sys_sendmsg+0xcd/0x170
[ 3686.967343][   T73]      do_syscall_64+0xc6/0x1e0
[ 3686.967343][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3686.967343][   T73] 
[ 3686.969072][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3686.969351][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3686.969351][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3686.969351][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3686.969351][   T73]      fib6_nh_init+0xa22/0x1580
[ 3686.969351][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3686.969351][   T73]      ip6_route_add+0x1c/0x140
[ 3686.969351][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3686.969351][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3686.969351][   T73]      netlink_rcv_skb+0x130/0x360
[ 3686.969351][   T73]      netlink_unicast+0x449/0x710
[ 3686.969351][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3686.969351][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3686.969351][   T73]      ___sys_sendmsg+0xee/0x170
[ 3686.969351][   T73]      __sys_sendmsg+0xcd/0x170
[ 3686.969351][   T73]      do_syscall_64+0xc6/0x1e0
[ 3686.969351][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3686.969351][   T73] 
[ 3686.971448][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3686.971448][   T73]      dst_init+0x84/0x4a0
[ 3686.971448][   T73]      dst_alloc+0x97/0x150
[ 3686.971448][   T73]      ip6_dst_alloc+0x23/0x90
[ 3686.971448][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3686.971448][   T73]      ip6_pol_route+0x56f/0x840
[ 3686.971448][   T73]      fib6_rule_lookup+0x456/0x630
[ 3686.971448][   T73]      ip6_route_input+0x59c/0xa50
[ 3686.971448][   T73]      ipv6_rcv+0x397/0x810
[ 3686.971448][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3686.971448][   T73]      process_backlog+0x101/0x620
[ 3686.971448][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3686.971448][   T73]      net_rx_action+0x495/0xbe0
[ 3686.971448][   T73]      __do_softirq+0x1b5/0x7f6
[ 3686.971448][   T73] 
[ 3686.973298][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3686.973298][   T73]      netdev_get_by_index+0x5e/0x80
[ 3686.973298][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3686.973298][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3686.973298][   T73]      ip6_route_add+0x1c/0x140
[ 3686.973298][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3686.973298][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3686.973298][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3686.973298][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3686.973298][   T73]      netlink_rcv_skb+0x130/0x360
[ 3686.973298][   T73]      netlink_unicast+0x449/0x710
[ 3686.973298][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3686.973298][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3686.973298][   T73]      ___sys_sendmsg+0xee/0x170
[ 3686.973298][   T73]      __sys_sendmsg+0xcd/0x170
[ 3686.973298][   T73]      do_syscall_64+0xc6/0x1e0
[ 3686.973298][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3686.973298][   T73] 
[ 3686.975592][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3686.975592][   T73]      netdev_get_by_index+0x5e/0x80
[ 3686.975592][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3686.975592][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3686.975592][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3686.975592][   T73]      ipv6_add_addr+0x411/0x2000
[ 3686.975592][   T73]      inet6_addr_add+0x30e/0xa40
[ 3686.975592][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3686.975592][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3686.975592][   T73]      netlink_rcv_skb+0x130/0x360
[ 3686.975592][   T73]      netlink_unicast+0x449/0x710
[ 3686.975592][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3686.975592][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3686.975592][   T73]      ___sys_sendmsg+0xee/0x170
[ 3686.975592][   T73]      __sys_sendmsg+0xcd/0x170
[ 3686.975592][   T73]      do_syscall_64+0xc6/0x1e0
[ 3686.975592][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3686.975592][   T73] 
[ 3686.977947][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3686.977947][   T73]      netdev_get_by_index+0x5e/0x80
[ 3686.977947][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3686.977947][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3686.977947][   T73]      ip6_route_add+0x1c/0x140
[ 3686.977947][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3686.977947][   T73]      addrconf_add_dev+0xe2/0x170
[ 3686.977947][   T73]      inet6_addr_add+0x12f/0xa40
[ 3686.977947][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3686.977947][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3686.977947][   T73]      netlink_rcv_skb+0x130/0x360
[ 3686.977947][   T73]      netlink_unicast+0x449/0x710
[ 3686.977947][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3686.977947][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3686.977947][   T73]      ___sys_sendmsg+0xee/0x170
[ 3686.977947][   T73]      __sys_sendmsg+0xcd/0x170
[ 3686.977947][   T73]      do_syscall_64+0xc6/0x1e0
[ 3686.977947][   T73] 
[ 3686.980134][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3686.980134][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3686.980134][   T73]      ipv6_find_idev+0x102/0x170
[ 3686.980134][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3686.980134][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3686.980134][   T73]      netlink_rcv_skb+0x130/0x360
[ 3686.980134][   T73]      netlink_unicast+0x449/0x710
[ 3686.980134][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3686.980134][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3686.980134][   T73]      ___sys_sendmsg+0xee/0x170
[ 3686.980134][   T73]      __sys_sendmsg+0xcd/0x170
[ 3686.980134][   T73]      do_syscall_64+0xc6/0x1e0
[ 3686.980134][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3686.980134][   T73] 
[ 3686.981879][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3686.981879][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3686.981879][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3686.981879][   T73]      ipv6_find_idev+0x102/0x170
[ 3686.981879][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3686.981879][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3686.981879][   T73]      netlink_rcv_skb+0x130/0x360
[ 3686.981879][   T73]      netlink_unicast+0x449/0x710
[ 3686.981879][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3686.981879][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3686.981879][   T73]      ___sys_sendmsg+0xee/0x170
[ 3686.981879][   T73]      __sys_sendmsg+0xcd/0x170
[ 3686.981879][   T73]      do_syscall_64+0xc6/0x1e0
[ 3686.981879][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3686.981879][   T73] 
[ 3686.983848][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3686.984117][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3686.984117][   T73]      netdev_get_by_index+0x5e/0x80
[ 3686.984117][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3686.984117][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3686.984117][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3686.984117][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3686.984117][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3686.984117][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3686.984117][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3686.984117][   T73]      addrconf_dad_begin+0x310/0x670
[ 3686.984117][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3686.984117][   T73]      process_one_work+0x84d/0x18a0
[ 3686.984117][   T73]      worker_thread+0x587/0xd30
[ 3686.984117][   T73]      kthread+0x28a/0x350
[ 3686.984117][   T73]      ret_from_fork+0x31/0x70
[ 3686.984117][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3686.984117][   T73] 
[ 3686.986312][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3686.986312][   T73]      netdev_get_by_index+0x5e/0x80
[ 3686.986312][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3686.986312][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3686.986312][   T73]      ip6_route_add+0x1c/0x140
[ 3686.986312][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3686.986312][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3686.986312][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3686.986312][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3686.986312][   T73]      netlink_rcv_skb+0x130/0x360
[ 3686.986312][   T73]      netlink_unicast+0x449/0x710
[ 3686.986312][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3686.986312][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3686.986312][   T73]      ___sys_sendmsg+0xee/0x170
[ 3686.986312][   T73]      __sys_sendmsg+0xcd/0x170
[ 3686.986312][   T73]      do_syscall_64+0xc6/0x1e0
[ 3686.986312][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3686.986312][   T73] 
[ 3686.988673][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3686.988673][   T73]      netdev_get_by_index+0x5e/0x80
[ 3686.988673][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3686.988673][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3686.988673][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3686.988673][   T73]      ipv6_add_addr+0x411/0x2000
[ 3686.988673][   T73]      inet6_addr_add+0x30e/0xa40
[ 3686.988673][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3686.988673][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3686.988673][   T73]      netlink_rcv_skb+0x130/0x360
[ 3686.988673][   T73]      netlink_unicast+0x449/0x710
[ 3686.988673][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3686.988673][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3686.988673][   T73]      ___sys_sendmsg+0xee/0x170
[ 3686.988673][   T73]      __sys_sendmsg+0xcd/0x170
[ 3686.988673][   T73]      do_syscall_64+0xc6/0x1e0
[ 3686.988673][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3686.988673][   T73] 
[ 3686.990897][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3686.990897][   T73]      netdev_get_by_index+0x5e/0x80
[ 3686.990897][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3686.990897][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3686.990897][   T73]      ip6_route_add+0x1c/0x140
[ 3686.990897][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3686.990897][   T73]      addrconf_add_dev+0xe2/0x170
[ 3686.990897][   T73]      inet6_addr_add+0x12f/0xa40
[ 3686.990897][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3686.990897][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3686.990897][   T73]      netlink_rcv_skb+0x130/0x360
[ 3686.990897][   T73]      netlink_unicast+0x449/0x710
[ 3686.990897][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3686.990897][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3686.990897][   T73]      ___sys_sendmsg+0xee/0x170
[ 3686.990897][   T73]      __sys_sendmsg+0xcd/0x170
[ 3686.990897][   T73]      do_syscall_64+0xc6/0x1e0
[ 3686.990897][   T73] 
[ 3686.993140][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3686.993140][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3686.993140][   T73]      ipv6_find_idev+0x102/0x170
[ 3686.993140][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3686.993140][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3686.993140][   T73]      netlink_rcv_skb+0x130/0x360
[ 3686.993140][   T73]      netlink_unicast+0x449/0x710
[ 3686.993140][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3686.993140][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3686.993140][   T73]      ___sys_sendmsg+0xee/0x170
[ 3686.993140][   T73]      __sys_sendmsg+0xcd/0x170
[ 3686.993140][   T73]      do_syscall_64+0xc6/0x1e0
[ 3686.993140][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3686.993140][   T73] 
[ 3686.994899][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3686.994899][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3686.994899][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3686.994899][   T73]      ipv6_find_idev+0x102/0x170
[ 3686.994899][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3686.994899][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3686.994899][   T73]      netlink_rcv_skb+0x130/0x360
[ 3686.994899][   T73]      netlink_unicast+0x449/0x710
[ 3686.994899][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3686.994899][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3686.994899][   T73]      ___sys_sendmsg+0xee/0x170
[ 3686.994899][   T73]      __sys_sendmsg+0xcd/0x170
[ 3686.994899][   T73]      do_syscall_64+0xc6/0x1e0
[ 3686.994899][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3686.994899][   T73] 
[ 3697.239887][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3697.240392][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3697.240392][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3697.240392][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3697.240392][   T73]      fib6_nh_init+0xa22/0x1580
[ 3697.240392][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3697.240392][   T73]      ip6_route_add+0x1c/0x140
[ 3697.240392][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3697.240392][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3697.240392][   T73]      netlink_rcv_skb+0x130/0x360
[ 3697.240392][   T73]      netlink_unicast+0x449/0x710
[ 3697.240392][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3697.240392][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3697.240392][   T73]      ___sys_sendmsg+0xee/0x170
[ 3697.240392][   T73]      __sys_sendmsg+0xcd/0x170
[ 3697.240392][   T73]      do_syscall_64+0xc6/0x1e0
[ 3697.240392][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3697.240392][   T73] 
[ 3697.242371][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3697.242371][   T73]      dst_init+0x84/0x4a0
[ 3697.242371][   T73]      dst_alloc+0x97/0x150
[ 3697.242371][   T73]      ip6_dst_alloc+0x23/0x90
[ 3697.242371][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3697.242371][   T73]      ip6_pol_route+0x56f/0x840
[ 3697.242371][   T73]      fib6_rule_lookup+0x456/0x630
[ 3697.242371][   T73]      ip6_route_input+0x59c/0xa50
[ 3697.242371][   T73]      ipv6_rcv+0x397/0x810
[ 3697.242371][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3697.242371][   T73]      process_backlog+0x101/0x620
[ 3697.242371][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3697.242371][   T73]      net_rx_action+0x495/0xbe0
[ 3697.242371][   T73]      __do_softirq+0x1b5/0x7f6
[ 3697.242371][   T73] 
[ 3697.244059][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3697.244059][   T73]      netdev_get_by_index+0x5e/0x80
[ 3697.244059][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3697.244059][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3697.244059][   T73]      ip6_route_add+0x1c/0x140
[ 3697.244059][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3697.244059][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3697.244059][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3697.244059][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3697.244059][   T73]      netlink_rcv_skb+0x130/0x360
[ 3697.244059][   T73]      netlink_unicast+0x449/0x710
[ 3697.244059][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3697.244059][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3697.244059][   T73]      ___sys_sendmsg+0xee/0x170
[ 3697.244059][   T73]      __sys_sendmsg+0xcd/0x170
[ 3697.244059][   T73]      do_syscall_64+0xc6/0x1e0
[ 3697.244059][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3697.244059][   T73] 
[ 3697.246118][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3697.246118][   T73]      netdev_get_by_index+0x5e/0x80
[ 3697.246118][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3697.246118][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3697.246118][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3697.246118][   T73]      ipv6_add_addr+0x411/0x2000
[ 3697.246118][   T73]      inet6_addr_add+0x30e/0xa40
[ 3697.246118][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3697.246118][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3697.246118][   T73]      netlink_rcv_skb+0x130/0x360
[ 3697.246118][   T73]      netlink_unicast+0x449/0x710
[ 3697.246118][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3697.246118][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3697.246118][   T73]      ___sys_sendmsg+0xee/0x170
[ 3697.246118][   T73]      __sys_sendmsg+0xcd/0x170
[ 3697.246118][   T73]      do_syscall_64+0xc6/0x1e0
[ 3697.246118][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3697.246118][   T73] 
[ 3697.248175][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3697.248175][   T73]      netdev_get_by_index+0x5e/0x80
[ 3697.248175][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3697.248175][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3697.248175][   T73]      ip6_route_add+0x1c/0x140
[ 3697.248175][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3697.248175][   T73]      addrconf_add_dev+0xe2/0x170
[ 3697.248175][   T73]      inet6_addr_add+0x12f/0xa40
[ 3697.248175][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3697.248175][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3697.248175][   T73]      netlink_rcv_skb+0x130/0x360
[ 3697.248175][   T73]      netlink_unicast+0x449/0x710
[ 3697.248175][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3697.248175][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3697.248175][   T73]      ___sys_sendmsg+0xee/0x170
[ 3697.248175][   T73]      __sys_sendmsg+0xcd/0x170
[ 3697.248175][   T73]      do_syscall_64+0xc6/0x1e0
[ 3697.248175][   T73] 
[ 3697.250206][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3697.250206][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3697.250206][   T73]      ipv6_find_idev+0x102/0x170
[ 3697.250206][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3697.250206][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3697.250206][   T73]      netlink_rcv_skb+0x130/0x360
[ 3697.250206][   T73]      netlink_unicast+0x449/0x710
[ 3697.250206][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3697.250206][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3697.250206][   T73]      ___sys_sendmsg+0xee/0x170
[ 3697.250206][   T73]      __sys_sendmsg+0xcd/0x170
[ 3697.250206][   T73]      do_syscall_64+0xc6/0x1e0
[ 3697.250206][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3697.250206][   T73] 
[ 3697.251785][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3697.251785][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3697.251785][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3697.251785][   T73]      ipv6_find_idev+0x102/0x170
[ 3697.251785][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3697.251785][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3697.251785][   T73]      netlink_rcv_skb+0x130/0x360
[ 3697.251785][   T73]      netlink_unicast+0x449/0x710
[ 3697.251785][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3697.251785][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3697.251785][   T73]      ___sys_sendmsg+0xee/0x170
[ 3697.251785][   T73]      __sys_sendmsg+0xcd/0x170
[ 3697.251785][   T73]      do_syscall_64+0xc6/0x1e0
[ 3697.251785][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3697.251785][   T73] 
[ 3697.253538][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3697.253846][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3697.253846][   T73]      netdev_get_by_index+0x5e/0x80
[ 3697.253846][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3697.253846][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3697.253846][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3697.253846][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3697.253846][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3697.253846][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3697.253846][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3697.253846][   T73]      addrconf_dad_begin+0x310/0x670
[ 3697.253846][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3697.253846][   T73]      process_one_work+0x84d/0x18a0
[ 3697.253846][   T73]      worker_thread+0x587/0xd30
[ 3697.253846][   T73]      kthread+0x28a/0x350
[ 3697.253846][   T73]      ret_from_fork+0x31/0x70
[ 3697.253846][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3697.253846][   T73] 
[ 3697.255810][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3697.255810][   T73]      netdev_get_by_index+0x5e/0x80
[ 3697.255810][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3697.255810][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3697.255810][   T73]      ip6_route_add+0x1c/0x140
[ 3697.255810][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3697.255810][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3697.255810][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3697.255810][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3697.255810][   T73]      netlink_rcv_skb+0x130/0x360
[ 3697.255810][   T73]      netlink_unicast+0x449/0x710
[ 3697.255810][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3697.255810][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3697.255810][   T73]      ___sys_sendmsg+0xee/0x170
[ 3697.255810][   T73]      __sys_sendmsg+0xcd/0x170
[ 3697.255810][   T73]      do_syscall_64+0xc6/0x1e0
[ 3697.255810][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3697.255810][   T73] 
[ 3697.257850][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3697.257850][   T73]      netdev_get_by_index+0x5e/0x80
[ 3697.257850][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3697.257850][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3697.257850][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3697.257850][   T73]      ipv6_add_addr+0x411/0x2000
[ 3697.257850][   T73]      inet6_addr_add+0x30e/0xa40
[ 3697.257850][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3697.257850][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3697.257850][   T73]      netlink_rcv_skb+0x130/0x360
[ 3697.257850][   T73]      netlink_unicast+0x449/0x710
[ 3697.257850][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3697.257850][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3697.257850][   T73]      ___sys_sendmsg+0xee/0x170
[ 3697.257850][   T73]      __sys_sendmsg+0xcd/0x170
[ 3697.257850][   T73]      do_syscall_64+0xc6/0x1e0
[ 3697.257850][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3697.257850][   T73] 
[ 3697.259900][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3697.259900][   T73]      netdev_get_by_index+0x5e/0x80
[ 3697.259900][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3697.259900][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3697.259900][   T73]      ip6_route_add+0x1c/0x140
[ 3697.259900][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3697.259900][   T73]      addrconf_add_dev+0xe2/0x170
[ 3697.259900][   T73]      inet6_addr_add+0x12f/0xa40
[ 3697.259900][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3697.259900][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3697.259900][   T73]      netlink_rcv_skb+0x130/0x360
[ 3697.259900][   T73]      netlink_unicast+0x449/0x710
[ 3697.259900][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3697.259900][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3697.259900][   T73]      ___sys_sendmsg+0xee/0x170
[ 3697.259900][   T73]      __sys_sendmsg+0xcd/0x170
[ 3697.259900][   T73]      do_syscall_64+0xc6/0x1e0
[ 3697.259900][   T73] 
[ 3697.261896][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3697.261896][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3697.261896][   T73]      ipv6_find_idev+0x102/0x170
[ 3697.261896][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3697.261896][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3697.261896][   T73]      netlink_rcv_skb+0x130/0x360
[ 3697.261896][   T73]      netlink_unicast+0x449/0x710
[ 3697.261896][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3697.261896][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3697.261896][   T73]      ___sys_sendmsg+0xee/0x170
[ 3697.261896][   T73]      __sys_sendmsg+0xcd/0x170
[ 3697.261896][   T73]      do_syscall_64+0xc6/0x1e0
[ 3697.261896][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3697.261896][   T73] 
[ 3697.263474][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3697.263474][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3697.263474][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3697.263474][   T73]      ipv6_find_idev+0x102/0x170
[ 3697.263474][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3697.263474][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3697.263474][   T73]      netlink_rcv_skb+0x130/0x360
[ 3697.263474][   T73]      netlink_unicast+0x449/0x710
[ 3697.263474][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3697.263474][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3697.263474][   T73]      ___sys_sendmsg+0xee/0x170
[ 3697.263474][   T73]      __sys_sendmsg+0xcd/0x170
[ 3697.263474][   T73]      do_syscall_64+0xc6/0x1e0
[ 3697.263474][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3697.263474][   T73] 
[ 3697.265200][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3697.265485][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3697.265485][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3697.265485][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3697.265485][   T73]      fib6_nh_init+0xa22/0x1580
[ 3697.265485][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3697.265485][   T73]      ip6_route_add+0x1c/0x140
[ 3697.265485][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3697.265485][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3697.265485][   T73]      netlink_rcv_skb+0x130/0x360
[ 3697.265485][   T73]      netlink_unicast+0x449/0x710
[ 3697.265485][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3697.265485][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3697.265485][   T73]      ___sys_sendmsg+0xee/0x170
[ 3697.265485][   T73]      __sys_sendmsg+0xcd/0x170
[ 3697.265485][   T73]      do_syscall_64+0xc6/0x1e0
[ 3697.265485][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3697.265485][   T73] 
[ 3697.267605][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3697.267605][   T73]      dst_init+0x84/0x4a0
[ 3697.267605][   T73]      dst_alloc+0x97/0x150
[ 3697.267605][   T73]      ip6_dst_alloc+0x23/0x90
[ 3697.267605][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3697.267605][   T73]      ip6_pol_route+0x56f/0x840
[ 3697.267605][   T73]      fib6_rule_lookup+0x456/0x630
[ 3697.267605][   T73]      ip6_route_input+0x59c/0xa50
[ 3697.267605][   T73]      ipv6_rcv+0x397/0x810
[ 3697.267605][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3697.267605][   T73]      process_backlog+0x101/0x620
[ 3697.267605][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3697.267605][   T73]      net_rx_action+0x495/0xbe0
[ 3697.267605][   T73]      __do_softirq+0x1b5/0x7f6
[ 3697.267605][   T73] 
[ 3697.269559][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3697.269559][   T73]      netdev_get_by_index+0x5e/0x80
[ 3697.269559][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3697.269559][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3697.269559][   T73]      ip6_route_add+0x1c/0x140
[ 3697.269559][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3697.269559][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3697.269559][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3697.269559][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3697.269559][   T73]      netlink_rcv_skb+0x130/0x360
[ 3697.269559][   T73]      netlink_unicast+0x449/0x710
[ 3697.269559][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3697.269559][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3697.269559][   T73]      ___sys_sendmsg+0xee/0x170
[ 3697.269559][   T73]      __sys_sendmsg+0xcd/0x170
[ 3697.269559][   T73]      do_syscall_64+0xc6/0x1e0
[ 3697.269559][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3697.269559][   T73] 
[ 3697.271872][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3697.271872][   T73]      netdev_get_by_index+0x5e/0x80
[ 3697.271872][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3697.271872][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3697.271872][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3697.271872][   T73]      ipv6_add_addr+0x411/0x2000
[ 3697.271872][   T73]      inet6_addr_add+0x30e/0xa40
[ 3697.271872][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3697.271872][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3697.271872][   T73]      netlink_rcv_skb+0x130/0x360
[ 3697.271872][   T73]      netlink_unicast+0x449/0x710
[ 3697.271872][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3697.271872][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3697.271872][   T73]      ___sys_sendmsg+0xee/0x170
[ 3697.271872][   T73]      __sys_sendmsg+0xcd/0x170
[ 3697.271872][   T73]      do_syscall_64+0xc6/0x1e0
[ 3697.271872][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3697.271872][   T73] 
[ 3697.274164][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3697.274164][   T73]      netdev_get_by_index+0x5e/0x80
[ 3697.274164][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3697.274164][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3697.274164][   T73]      ip6_route_add+0x1c/0x140
[ 3697.274164][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3697.274164][   T73]      addrconf_add_dev+0xe2/0x170
[ 3697.274164][   T73]      inet6_addr_add+0x12f/0xa40
[ 3697.274164][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3697.274164][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3697.274164][   T73]      netlink_rcv_skb+0x130/0x360
[ 3697.274164][   T73]      netlink_unicast+0x449/0x710
[ 3697.274164][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3697.274164][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3697.274164][   T73]      ___sys_sendmsg+0xee/0x170
[ 3697.274164][   T73]      __sys_sendmsg+0xcd/0x170
[ 3697.274164][   T73]      do_syscall_64+0xc6/0x1e0
[ 3697.274164][   T73] 
[ 3697.276384][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3697.276384][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3697.276384][   T73]      ipv6_find_idev+0x102/0x170
[ 3697.276384][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3697.276384][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3697.276384][   T73]      netlink_rcv_skb+0x130/0x360
[ 3697.276384][   T73]      netlink_unicast+0x449/0x710
[ 3697.276384][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3697.276384][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3697.276384][   T73]      ___sys_sendmsg+0xee/0x170
[ 3697.276384][   T73]      __sys_sendmsg+0xcd/0x170
[ 3697.276384][   T73]      do_syscall_64+0xc6/0x1e0
[ 3697.276384][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3697.276384][   T73] 
[ 3697.278219][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3697.278219][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3697.278219][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3697.278219][   T73]      ipv6_find_idev+0x102/0x170
[ 3697.278219][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3697.278219][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3697.278219][   T73]      netlink_rcv_skb+0x130/0x360
[ 3697.278219][   T73]      netlink_unicast+0x449/0x710
[ 3697.278219][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3697.278219][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3697.278219][   T73]      ___sys_sendmsg+0xee/0x170
[ 3697.278219][   T73]      __sys_sendmsg+0xcd/0x170
[ 3697.278219][   T73]      do_syscall_64+0xc6/0x1e0
[ 3697.278219][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3697.278219][   T73] 
[ 3697.280603][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3697.281328][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3697.281328][   T73]      netdev_get_by_index+0x5e/0x80
[ 3697.281328][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3697.281328][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3697.281328][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3697.281328][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3697.281328][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3697.281328][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3697.281328][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3697.281328][   T73]      addrconf_dad_begin+0x310/0x670
[ 3697.281328][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3697.281328][   T73]      process_one_work+0x84d/0x18a0
[ 3697.281328][   T73]      worker_thread+0x587/0xd30
[ 3697.281328][   T73]      kthread+0x28a/0x350
[ 3697.281328][   T73]      ret_from_fork+0x31/0x70
[ 3697.281328][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3697.281328][   T73] 
[ 3697.283276][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3697.283276][   T73]      netdev_get_by_index+0x5e/0x80
[ 3697.283276][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3697.283276][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3697.283276][   T73]      ip6_route_add+0x1c/0x140
[ 3697.283276][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3697.283276][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3697.283276][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3697.283276][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3697.283276][   T73]      netlink_rcv_skb+0x130/0x360
[ 3697.283276][   T73]      netlink_unicast+0x449/0x710
[ 3697.283276][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3697.283276][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3697.283276][   T73]      ___sys_sendmsg+0xee/0x170
[ 3697.283276][   T73]      __sys_sendmsg+0xcd/0x170
[ 3697.283276][   T73]      do_syscall_64+0xc6/0x1e0
[ 3697.283276][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3697.283276][   T73] 
[ 3697.285322][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3697.285322][   T73]      netdev_get_by_index+0x5e/0x80
[ 3697.285322][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3697.285322][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3697.285322][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3697.285322][   T73]      ipv6_add_addr+0x411/0x2000
[ 3697.285322][   T73]      inet6_addr_add+0x30e/0xa40
[ 3697.285322][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3697.285322][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3697.285322][   T73]      netlink_rcv_skb+0x130/0x360
[ 3697.285322][   T73]      netlink_unicast+0x449/0x710
[ 3697.285322][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3697.285322][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3697.285322][   T73]      ___sys_sendmsg+0xee/0x170
[ 3697.285322][   T73]      __sys_sendmsg+0xcd/0x170
[ 3697.285322][   T73]      do_syscall_64+0xc6/0x1e0
[ 3697.285322][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3697.285322][   T73] 
[ 3697.287364][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3697.287364][   T73]      netdev_get_by_index+0x5e/0x80
[ 3697.287364][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3697.287364][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3697.287364][   T73]      ip6_route_add+0x1c/0x140
[ 3697.287364][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3697.287364][   T73]      addrconf_add_dev+0xe2/0x170
[ 3697.287364][   T73]      inet6_addr_add+0x12f/0xa40
[ 3697.287364][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3697.287364][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3697.287364][   T73]      netlink_rcv_skb+0x130/0x360
[ 3697.287364][   T73]      netlink_unicast+0x449/0x710
[ 3697.287364][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3697.287364][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3697.287364][   T73]      ___sys_sendmsg+0xee/0x170
[ 3697.287364][   T73]      __sys_sendmsg+0xcd/0x170
[ 3697.287364][   T73]      do_syscall_64+0xc6/0x1e0
[ 3697.287364][   T73] 
[ 3697.289571][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3697.289571][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3697.289571][   T73]      ipv6_find_idev+0x102/0x170
[ 3697.289571][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3697.289571][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3697.289571][   T73]      netlink_rcv_skb+0x130/0x360
[ 3697.289571][   T73]      netlink_unicast+0x449/0x710
[ 3697.289571][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3697.289571][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3697.289571][   T73]      ___sys_sendmsg+0xee/0x170
[ 3697.289571][   T73]      __sys_sendmsg+0xcd/0x170
[ 3697.289571][   T73]      do_syscall_64+0xc6/0x1e0
[ 3697.289571][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3697.289571][   T73] 
[ 3697.291337][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3697.291337][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3697.291337][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3697.291337][   T73]      ipv6_find_idev+0x102/0x170
[ 3697.291337][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3697.291337][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3697.291337][   T73]      netlink_rcv_skb+0x130/0x360
[ 3697.291337][   T73]      netlink_unicast+0x449/0x710
[ 3697.291337][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3697.291337][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3697.291337][   T73]      ___sys_sendmsg+0xee/0x170
[ 3697.291337][   T73]      __sys_sendmsg+0xcd/0x170
[ 3697.291337][   T73]      do_syscall_64+0xc6/0x1e0
[ 3697.291337][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3697.291337][   T73] 
[ 3707.351757][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3707.352306][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3707.352306][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3707.352306][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3707.352306][   T73]      fib6_nh_init+0xa22/0x1580
[ 3707.352306][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3707.352306][   T73]      ip6_route_add+0x1c/0x140
[ 3707.352306][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3707.352306][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3707.352306][   T73]      netlink_rcv_skb+0x130/0x360
[ 3707.352306][   T73]      netlink_unicast+0x449/0x710
[ 3707.352306][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3707.352306][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3707.352306][   T73]      ___sys_sendmsg+0xee/0x170
[ 3707.352306][   T73]      __sys_sendmsg+0xcd/0x170
[ 3707.352306][   T73]      do_syscall_64+0xc6/0x1e0
[ 3707.352306][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3707.352306][   T73] 
[ 3707.354294][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3707.354294][   T73]      dst_init+0x84/0x4a0
[ 3707.354294][   T73]      dst_alloc+0x97/0x150
[ 3707.354294][   T73]      ip6_dst_alloc+0x23/0x90
[ 3707.354294][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3707.354294][   T73]      ip6_pol_route+0x56f/0x840
[ 3707.354294][   T73]      fib6_rule_lookup+0x456/0x630
[ 3707.354294][   T73]      ip6_route_input+0x59c/0xa50
[ 3707.354294][   T73]      ipv6_rcv+0x397/0x810
[ 3707.354294][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3707.354294][   T73]      process_backlog+0x101/0x620
[ 3707.354294][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3707.354294][   T73]      net_rx_action+0x495/0xbe0
[ 3707.354294][   T73]      __do_softirq+0x1b5/0x7f6
[ 3707.354294][   T73] 
[ 3707.355982][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3707.355982][   T73]      netdev_get_by_index+0x5e/0x80
[ 3707.355982][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3707.355982][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3707.355982][   T73]      ip6_route_add+0x1c/0x140
[ 3707.355982][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3707.355982][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3707.355982][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3707.355982][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3707.355982][   T73]      netlink_rcv_skb+0x130/0x360
[ 3707.355982][   T73]      netlink_unicast+0x449/0x710
[ 3707.355982][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3707.355982][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3707.355982][   T73]      ___sys_sendmsg+0xee/0x170
[ 3707.355982][   T73]      __sys_sendmsg+0xcd/0x170
[ 3707.355982][   T73]      do_syscall_64+0xc6/0x1e0
[ 3707.355982][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3707.355982][   T73] 
[ 3707.358058][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3707.358058][   T73]      netdev_get_by_index+0x5e/0x80
[ 3707.358058][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3707.358058][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3707.358058][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3707.358058][   T73]      ipv6_add_addr+0x411/0x2000
[ 3707.358058][   T73]      inet6_addr_add+0x30e/0xa40
[ 3707.358058][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3707.358058][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3707.358058][   T73]      netlink_rcv_skb+0x130/0x360
[ 3707.358058][   T73]      netlink_unicast+0x449/0x710
[ 3707.358058][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3707.358058][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3707.358058][   T73]      ___sys_sendmsg+0xee/0x170
[ 3707.358058][   T73]      __sys_sendmsg+0xcd/0x170
[ 3707.358058][   T73]      do_syscall_64+0xc6/0x1e0
[ 3707.358058][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3707.358058][   T73] 
[ 3707.360099][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3707.360099][   T73]      netdev_get_by_index+0x5e/0x80
[ 3707.360099][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3707.360099][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3707.360099][   T73]      ip6_route_add+0x1c/0x140
[ 3707.360099][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3707.360099][   T73]      addrconf_add_dev+0xe2/0x170
[ 3707.360099][   T73]      inet6_addr_add+0x12f/0xa40
[ 3707.360099][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3707.360099][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3707.360099][   T73]      netlink_rcv_skb+0x130/0x360
[ 3707.360099][   T73]      netlink_unicast+0x449/0x710
[ 3707.360099][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3707.360099][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3707.360099][   T73]      ___sys_sendmsg+0xee/0x170
[ 3707.360099][   T73]      __sys_sendmsg+0xcd/0x170
[ 3707.360099][   T73]      do_syscall_64+0xc6/0x1e0
[ 3707.360099][   T73] 
[ 3707.362108][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3707.362108][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3707.362108][   T73]      ipv6_find_idev+0x102/0x170
[ 3707.362108][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3707.362108][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3707.362108][   T73]      netlink_rcv_skb+0x130/0x360
[ 3707.362108][   T73]      netlink_unicast+0x449/0x710
[ 3707.362108][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3707.362108][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3707.362108][   T73]      ___sys_sendmsg+0xee/0x170
[ 3707.362108][   T73]      __sys_sendmsg+0xcd/0x170
[ 3707.362108][   T73]      do_syscall_64+0xc6/0x1e0
[ 3707.362108][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3707.362108][   T73] 
[ 3707.363671][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3707.363671][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3707.363671][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3707.363671][   T73]      ipv6_find_idev+0x102/0x170
[ 3707.363671][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3707.363671][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3707.363671][   T73]      netlink_rcv_skb+0x130/0x360
[ 3707.363671][   T73]      netlink_unicast+0x449/0x710
[ 3707.363671][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3707.363671][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3707.363671][   T73]      ___sys_sendmsg+0xee/0x170
[ 3707.363671][   T73]      __sys_sendmsg+0xcd/0x170
[ 3707.363671][   T73]      do_syscall_64+0xc6/0x1e0
[ 3707.363671][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3707.363671][   T73] 
[ 3707.365418][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3707.365735][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3707.365735][   T73]      netdev_get_by_index+0x5e/0x80
[ 3707.365735][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3707.365735][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3707.365735][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3707.365735][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3707.365735][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3707.365735][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3707.365735][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3707.365735][   T73]      addrconf_dad_begin+0x310/0x670
[ 3707.365735][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3707.365735][   T73]      process_one_work+0x84d/0x18a0
[ 3707.365735][   T73]      worker_thread+0x587/0xd30
[ 3707.365735][   T73]      kthread+0x28a/0x350
[ 3707.365735][   T73]      ret_from_fork+0x31/0x70
[ 3707.365735][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3707.365735][   T73] 
[ 3707.367715][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3707.367715][   T73]      netdev_get_by_index+0x5e/0x80
[ 3707.367715][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3707.367715][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3707.367715][   T73]      ip6_route_add+0x1c/0x140
[ 3707.367715][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3707.367715][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3707.367715][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3707.367715][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3707.367715][   T73]      netlink_rcv_skb+0x130/0x360
[ 3707.367715][   T73]      netlink_unicast+0x449/0x710
[ 3707.367715][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3707.367715][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3707.367715][   T73]      ___sys_sendmsg+0xee/0x170
[ 3707.367715][   T73]      __sys_sendmsg+0xcd/0x170
[ 3707.367715][   T73]      do_syscall_64+0xc6/0x1e0
[ 3707.367715][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3707.367715][   T73] 
[ 3707.369741][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3707.369741][   T73]      netdev_get_by_index+0x5e/0x80
[ 3707.369741][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3707.369741][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3707.369741][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3707.369741][   T73]      ipv6_add_addr+0x411/0x2000
[ 3707.369741][   T73]      inet6_addr_add+0x30e/0xa40
[ 3707.369741][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3707.369741][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3707.369741][   T73]      netlink_rcv_skb+0x130/0x360
[ 3707.369741][   T73]      netlink_unicast+0x449/0x710
[ 3707.369741][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3707.369741][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3707.369741][   T73]      ___sys_sendmsg+0xee/0x170
[ 3707.369741][   T73]      __sys_sendmsg+0xcd/0x170
[ 3707.369741][   T73]      do_syscall_64+0xc6/0x1e0
[ 3707.369741][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3707.369741][   T73] 
[ 3707.371798][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3707.371798][   T73]      netdev_get_by_index+0x5e/0x80
[ 3707.371798][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3707.371798][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3707.371798][   T73]      ip6_route_add+0x1c/0x140
[ 3707.371798][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3707.371798][   T73]      addrconf_add_dev+0xe2/0x170
[ 3707.371798][   T73]      inet6_addr_add+0x12f/0xa40
[ 3707.371798][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3707.371798][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3707.371798][   T73]      netlink_rcv_skb+0x130/0x360
[ 3707.371798][   T73]      netlink_unicast+0x449/0x710
[ 3707.371798][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3707.371798][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3707.371798][   T73]      ___sys_sendmsg+0xee/0x170
[ 3707.371798][   T73]      __sys_sendmsg+0xcd/0x170
[ 3707.371798][   T73]      do_syscall_64+0xc6/0x1e0
[ 3707.371798][   T73] 
[ 3707.373803][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3707.373803][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3707.373803][   T73]      ipv6_find_idev+0x102/0x170
[ 3707.373803][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3707.373803][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3707.373803][   T73]      netlink_rcv_skb+0x130/0x360
[ 3707.373803][   T73]      netlink_unicast+0x449/0x710
[ 3707.373803][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3707.373803][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3707.373803][   T73]      ___sys_sendmsg+0xee/0x170
[ 3707.373803][   T73]      __sys_sendmsg+0xcd/0x170
[ 3707.373803][   T73]      do_syscall_64+0xc6/0x1e0
[ 3707.373803][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3707.373803][   T73] 
[ 3707.375383][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3707.375383][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3707.375383][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3707.375383][   T73]      ipv6_find_idev+0x102/0x170
[ 3707.375383][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3707.375383][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3707.375383][   T73]      netlink_rcv_skb+0x130/0x360
[ 3707.375383][   T73]      netlink_unicast+0x449/0x710
[ 3707.375383][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3707.375383][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3707.375383][   T73]      ___sys_sendmsg+0xee/0x170
[ 3707.375383][   T73]      __sys_sendmsg+0xcd/0x170
[ 3707.375383][   T73]      do_syscall_64+0xc6/0x1e0
[ 3707.375383][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3707.375383][   T73] 
[ 3707.377125][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3707.377409][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3707.377409][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3707.377409][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3707.377409][   T73]      fib6_nh_init+0xa22/0x1580
[ 3707.377409][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3707.377409][   T73]      ip6_route_add+0x1c/0x140
[ 3707.377409][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3707.377409][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3707.377409][   T73]      netlink_rcv_skb+0x130/0x360
[ 3707.377409][   T73]      netlink_unicast+0x449/0x710
[ 3707.377409][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3707.377409][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3707.377409][   T73]      ___sys_sendmsg+0xee/0x170
[ 3707.377409][   T73]      __sys_sendmsg+0xcd/0x170
[ 3707.377409][   T73]      do_syscall_64+0xc6/0x1e0
[ 3707.377409][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3707.377409][   T73] 
[ 3707.379509][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3707.379509][   T73]      dst_init+0x84/0x4a0
[ 3707.379509][   T73]      dst_alloc+0x97/0x150
[ 3707.379509][   T73]      ip6_dst_alloc+0x23/0x90
[ 3707.379509][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3707.379509][   T73]      ip6_pol_route+0x56f/0x840
[ 3707.379509][   T73]      fib6_rule_lookup+0x456/0x630
[ 3707.379509][   T73]      ip6_route_input+0x59c/0xa50
[ 3707.379509][   T73]      ipv6_rcv+0x397/0x810
[ 3707.379509][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3707.379509][   T73]      process_backlog+0x101/0x620
[ 3707.379509][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3707.379509][   T73]      net_rx_action+0x495/0xbe0
[ 3707.379509][   T73]      __do_softirq+0x1b5/0x7f6
[ 3707.379509][   T73] 
[ 3707.381456][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3707.381456][   T73]      netdev_get_by_index+0x5e/0x80
[ 3707.381456][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3707.381456][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3707.381456][   T73]      ip6_route_add+0x1c/0x140
[ 3707.381456][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3707.381456][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3707.381456][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3707.381456][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3707.381456][   T73]      netlink_rcv_skb+0x130/0x360
[ 3707.381456][   T73]      netlink_unicast+0x449/0x710
[ 3707.381456][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3707.381456][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3707.381456][   T73]      ___sys_sendmsg+0xee/0x170
[ 3707.381456][   T73]      __sys_sendmsg+0xcd/0x170
[ 3707.381456][   T73]      do_syscall_64+0xc6/0x1e0
[ 3707.381456][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3707.381456][   T73] 
[ 3707.383736][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3707.383736][   T73]      netdev_get_by_index+0x5e/0x80
[ 3707.383736][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3707.383736][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3707.383736][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3707.383736][   T73]      ipv6_add_addr+0x411/0x2000
[ 3707.383736][   T73]      inet6_addr_add+0x30e/0xa40
[ 3707.383736][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3707.383736][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3707.383736][   T73]      netlink_rcv_skb+0x130/0x360
[ 3707.383736][   T73]      netlink_unicast+0x449/0x710
[ 3707.383736][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3707.383736][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3707.383736][   T73]      ___sys_sendmsg+0xee/0x170
[ 3707.383736][   T73]      __sys_sendmsg+0xcd/0x170
[ 3707.383736][   T73]      do_syscall_64+0xc6/0x1e0
[ 3707.383736][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3707.383736][   T73] 
[ 3707.386022][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3707.386022][   T73]      netdev_get_by_index+0x5e/0x80
[ 3707.386022][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3707.386022][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3707.386022][   T73]      ip6_route_add+0x1c/0x140
[ 3707.386022][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3707.386022][   T73]      addrconf_add_dev+0xe2/0x170
[ 3707.386022][   T73]      inet6_addr_add+0x12f/0xa40
[ 3707.386022][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3707.386022][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3707.386022][   T73]      netlink_rcv_skb+0x130/0x360
[ 3707.386022][   T73]      netlink_unicast+0x449/0x710
[ 3707.386022][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3707.386022][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3707.386022][   T73]      ___sys_sendmsg+0xee/0x170
[ 3707.386022][   T73]      __sys_sendmsg+0xcd/0x170
[ 3707.386022][   T73]      do_syscall_64+0xc6/0x1e0
[ 3707.386022][   T73] 
[ 3707.388216][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3707.388216][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3707.388216][   T73]      ipv6_find_idev+0x102/0x170
[ 3707.388216][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3707.388216][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3707.388216][   T73]      netlink_rcv_skb+0x130/0x360
[ 3707.388216][   T73]      netlink_unicast+0x449/0x710
[ 3707.388216][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3707.388216][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3707.388216][   T73]      ___sys_sendmsg+0xee/0x170
[ 3707.388216][   T73]      __sys_sendmsg+0xcd/0x170
[ 3707.388216][   T73]      do_syscall_64+0xc6/0x1e0
[ 3707.388216][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3707.388216][   T73] 
[ 3707.390036][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3707.390036][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3707.390036][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3707.390036][   T73]      ipv6_find_idev+0x102/0x170
[ 3707.390036][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3707.390036][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3707.390036][   T73]      netlink_rcv_skb+0x130/0x360
[ 3707.390036][   T73]      netlink_unicast+0x449/0x710
[ 3707.390036][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3707.390036][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3707.390036][   T73]      ___sys_sendmsg+0xee/0x170
[ 3707.390036][   T73]      __sys_sendmsg+0xcd/0x170
[ 3707.390036][   T73]      do_syscall_64+0xc6/0x1e0
[ 3707.390036][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3707.390036][   T73] 
[ 3707.392034][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3707.392328][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3707.392328][   T73]      netdev_get_by_index+0x5e/0x80
[ 3707.392328][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3707.392328][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3707.392328][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3707.392328][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3707.392328][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3707.392328][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3707.392328][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3707.392328][   T73]      addrconf_dad_begin+0x310/0x670
[ 3707.392328][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3707.392328][   T73]      process_one_work+0x84d/0x18a0
[ 3707.392328][   T73]      worker_thread+0x587/0xd30
[ 3707.392328][   T73]      kthread+0x28a/0x350
[ 3707.392328][   T73]      ret_from_fork+0x31/0x70
[ 3707.392328][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3707.392328][   T73] 
[ 3707.394509][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3707.394509][   T73]      netdev_get_by_index+0x5e/0x80
[ 3707.394509][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3707.394509][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3707.394509][   T73]      ip6_route_add+0x1c/0x140
[ 3707.394509][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3707.394509][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3707.394509][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3707.394509][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3707.394509][   T73]      netlink_rcv_skb+0x130/0x360
[ 3707.394509][   T73]      netlink_unicast+0x449/0x710
[ 3707.394509][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3707.394509][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3707.394509][   T73]      ___sys_sendmsg+0xee/0x170
[ 3707.394509][   T73]      __sys_sendmsg+0xcd/0x170
[ 3707.394509][   T73]      do_syscall_64+0xc6/0x1e0
[ 3707.394509][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3707.394509][   T73] 
[ 3707.396784][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3707.396784][   T73]      netdev_get_by_index+0x5e/0x80
[ 3707.396784][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3707.396784][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3707.396784][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3707.396784][   T73]      ipv6_add_addr+0x411/0x2000
[ 3707.396784][   T73]      inet6_addr_add+0x30e/0xa40
[ 3707.396784][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3707.396784][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3707.396784][   T73]      netlink_rcv_skb+0x130/0x360
[ 3707.396784][   T73]      netlink_unicast+0x449/0x710
[ 3707.396784][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3707.396784][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3707.396784][   T73]      ___sys_sendmsg+0xee/0x170
[ 3707.396784][   T73]      __sys_sendmsg+0xcd/0x170
[ 3707.396784][   T73]      do_syscall_64+0xc6/0x1e0
[ 3707.396784][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3707.396784][   T73] 
[ 3707.399570][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3707.399570][   T73]      netdev_get_by_index+0x5e/0x80
[ 3707.399570][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3707.399570][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3707.399570][   T73]      ip6_route_add+0x1c/0x140
[ 3707.399570][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3707.399570][   T73]      addrconf_add_dev+0xe2/0x170
[ 3707.399570][   T73]      inet6_addr_add+0x12f/0xa40
[ 3707.399570][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3707.399570][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3707.399570][   T73]      netlink_rcv_skb+0x130/0x360
[ 3707.399570][   T73]      netlink_unicast+0x449/0x710
[ 3707.399570][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3707.399570][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3707.399570][   T73]      ___sys_sendmsg+0xee/0x170
[ 3707.399570][   T73]      __sys_sendmsg+0xcd/0x170
[ 3707.399570][   T73]      do_syscall_64+0xc6/0x1e0
[ 3707.399570][   T73] 
[ 3707.401844][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3707.401844][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3707.401844][   T73]      ipv6_find_idev+0x102/0x170
[ 3707.401844][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3707.401844][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3707.401844][   T73]      netlink_rcv_skb+0x130/0x360
[ 3707.401844][   T73]      netlink_unicast+0x449/0x710
[ 3707.401844][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3707.401844][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3707.401844][   T73]      ___sys_sendmsg+0xee/0x170
[ 3707.401844][   T73]      __sys_sendmsg+0xcd/0x170
[ 3707.401844][   T73]      do_syscall_64+0xc6/0x1e0
[ 3707.401844][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3707.401844][   T73] 
[ 3707.403577][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3707.403577][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3707.403577][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3707.403577][   T73]      ipv6_find_idev+0x102/0x170
[ 3707.403577][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3707.403577][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3707.403577][   T73]      netlink_rcv_skb+0x130/0x360
[ 3707.403577][   T73]      netlink_unicast+0x449/0x710
[ 3707.403577][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3707.403577][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3707.403577][   T73]      ___sys_sendmsg+0xee/0x170
[ 3707.403577][   T73]      __sys_sendmsg+0xcd/0x170
[ 3707.403577][   T73]      do_syscall_64+0xc6/0x1e0
[ 3707.403577][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3707.403577][   T73] 
[ 3717.535757][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3717.536179][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3717.536179][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3717.536179][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3717.536179][   T73]      fib6_nh_init+0xa22/0x1580
[ 3717.536179][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3717.536179][   T73]      ip6_route_add+0x1c/0x140
[ 3717.536179][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3717.536179][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3717.536179][   T73]      netlink_rcv_skb+0x130/0x360
[ 3717.536179][   T73]      netlink_unicast+0x449/0x710
[ 3717.536179][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3717.536179][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3717.536179][   T73]      ___sys_sendmsg+0xee/0x170
[ 3717.536179][   T73]      __sys_sendmsg+0xcd/0x170
[ 3717.536179][   T73]      do_syscall_64+0xc6/0x1e0
[ 3717.536179][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3717.536179][   T73] 
[ 3717.538141][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3717.538141][   T73]      dst_init+0x84/0x4a0
[ 3717.538141][   T73]      dst_alloc+0x97/0x150
[ 3717.538141][   T73]      ip6_dst_alloc+0x23/0x90
[ 3717.538141][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3717.538141][   T73]      ip6_pol_route+0x56f/0x840
[ 3717.538141][   T73]      fib6_rule_lookup+0x456/0x630
[ 3717.538141][   T73]      ip6_route_input+0x59c/0xa50
[ 3717.538141][   T73]      ipv6_rcv+0x397/0x810
[ 3717.538141][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3717.538141][   T73]      process_backlog+0x101/0x620
[ 3717.538141][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3717.538141][   T73]      net_rx_action+0x495/0xbe0
[ 3717.538141][   T73]      __do_softirq+0x1b5/0x7f6
[ 3717.538141][   T73] 
[ 3717.539790][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3717.539790][   T73]      netdev_get_by_index+0x5e/0x80
[ 3717.539790][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3717.539790][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3717.539790][   T73]      ip6_route_add+0x1c/0x140
[ 3717.539790][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3717.539790][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3717.539790][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3717.539790][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3717.539790][   T73]      netlink_rcv_skb+0x130/0x360
[ 3717.539790][   T73]      netlink_unicast+0x449/0x710
[ 3717.539790][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3717.539790][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3717.539790][   T73]      ___sys_sendmsg+0xee/0x170
[ 3717.539790][   T73]      __sys_sendmsg+0xcd/0x170
[ 3717.539790][   T73]      do_syscall_64+0xc6/0x1e0
[ 3717.539790][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3717.539790][   T73] 
[ 3717.541801][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3717.541801][   T73]      netdev_get_by_index+0x5e/0x80
[ 3717.541801][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3717.541801][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3717.541801][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3717.541801][   T73]      ipv6_add_addr+0x411/0x2000
[ 3717.541801][   T73]      inet6_addr_add+0x30e/0xa40
[ 3717.541801][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3717.541801][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3717.541801][   T73]      netlink_rcv_skb+0x130/0x360
[ 3717.541801][   T73]      netlink_unicast+0x449/0x710
[ 3717.541801][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3717.541801][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3717.541801][   T73]      ___sys_sendmsg+0xee/0x170
[ 3717.541801][   T73]      __sys_sendmsg+0xcd/0x170
[ 3717.541801][   T73]      do_syscall_64+0xc6/0x1e0
[ 3717.541801][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3717.541801][   T73] 
[ 3717.543815][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3717.543815][   T73]      netdev_get_by_index+0x5e/0x80
[ 3717.543815][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3717.543815][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3717.543815][   T73]      ip6_route_add+0x1c/0x140
[ 3717.543815][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3717.543815][   T73]      addrconf_add_dev+0xe2/0x170
[ 3717.543815][   T73]      inet6_addr_add+0x12f/0xa40
[ 3717.543815][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3717.543815][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3717.543815][   T73]      netlink_rcv_skb+0x130/0x360
[ 3717.543815][   T73]      netlink_unicast+0x449/0x710
[ 3717.543815][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3717.543815][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3717.543815][   T73]      ___sys_sendmsg+0xee/0x170
[ 3717.543815][   T73]      __sys_sendmsg+0xcd/0x170
[ 3717.543815][   T73]      do_syscall_64+0xc6/0x1e0
[ 3717.543815][   T73] 
[ 3717.545782][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3717.545782][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3717.545782][   T73]      ipv6_find_idev+0x102/0x170
[ 3717.545782][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3717.545782][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3717.545782][   T73]      netlink_rcv_skb+0x130/0x360
[ 3717.545782][   T73]      netlink_unicast+0x449/0x710
[ 3717.545782][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3717.545782][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3717.545782][   T73]      ___sys_sendmsg+0xee/0x170
[ 3717.545782][   T73]      __sys_sendmsg+0xcd/0x170
[ 3717.545782][   T73]      do_syscall_64+0xc6/0x1e0
[ 3717.545782][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3717.545782][   T73] 
[ 3717.547337][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3717.547337][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3717.547337][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3717.547337][   T73]      ipv6_find_idev+0x102/0x170
[ 3717.547337][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3717.547337][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3717.547337][   T73]      netlink_rcv_skb+0x130/0x360
[ 3717.547337][   T73]      netlink_unicast+0x449/0x710
[ 3717.547337][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3717.547337][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3717.547337][   T73]      ___sys_sendmsg+0xee/0x170
[ 3717.547337][   T73]      __sys_sendmsg+0xcd/0x170
[ 3717.547337][   T73]      do_syscall_64+0xc6/0x1e0
[ 3717.547337][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3717.547337][   T73] 
[ 3717.549057][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3717.549341][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3717.549341][   T73]      netdev_get_by_index+0x5e/0x80
[ 3717.549341][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3717.549341][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3717.549341][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3717.549341][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3717.549341][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3717.549341][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3717.549341][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3717.549341][   T73]      addrconf_dad_begin+0x310/0x670
[ 3717.549341][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3717.549341][   T73]      process_one_work+0x84d/0x18a0
[ 3717.549341][   T73]      worker_thread+0x587/0xd30
[ 3717.549341][   T73]      kthread+0x28a/0x350
[ 3717.549341][   T73]      ret_from_fork+0x31/0x70
[ 3717.549341][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3717.549341][   T73] 
[ 3717.551276][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3717.551276][   T73]      netdev_get_by_index+0x5e/0x80
[ 3717.551276][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3717.551276][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3717.551276][   T73]      ip6_route_add+0x1c/0x140
[ 3717.551276][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3717.551276][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3717.551276][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3717.551276][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3717.551276][   T73]      netlink_rcv_skb+0x130/0x360
[ 3717.551276][   T73]      netlink_unicast+0x449/0x710
[ 3717.551276][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3717.551276][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3717.551276][   T73]      ___sys_sendmsg+0xee/0x170
[ 3717.551276][   T73]      __sys_sendmsg+0xcd/0x170
[ 3717.551276][   T73]      do_syscall_64+0xc6/0x1e0
[ 3717.551276][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3717.551276][   T73] 
[ 3717.553301][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3717.553301][   T73]      netdev_get_by_index+0x5e/0x80
[ 3717.553301][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3717.553301][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3717.553301][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3717.553301][   T73]      ipv6_add_addr+0x411/0x2000
[ 3717.553301][   T73]      inet6_addr_add+0x30e/0xa40
[ 3717.553301][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3717.553301][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3717.553301][   T73]      netlink_rcv_skb+0x130/0x360
[ 3717.553301][   T73]      netlink_unicast+0x449/0x710
[ 3717.553301][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3717.553301][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3717.553301][   T73]      ___sys_sendmsg+0xee/0x170
[ 3717.553301][   T73]      __sys_sendmsg+0xcd/0x170
[ 3717.553301][   T73]      do_syscall_64+0xc6/0x1e0
[ 3717.553301][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3717.553301][   T73] 
[ 3717.555840][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3717.555840][   T73]      netdev_get_by_index+0x5e/0x80
[ 3717.555840][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3717.555840][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3717.555840][   T73]      ip6_route_add+0x1c/0x140
[ 3717.555840][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3717.555840][   T73]      addrconf_add_dev+0xe2/0x170
[ 3717.555840][   T73]      inet6_addr_add+0x12f/0xa40
[ 3717.555840][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3717.555840][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3717.555840][   T73]      netlink_rcv_skb+0x130/0x360
[ 3717.555840][   T73]      netlink_unicast+0x449/0x710
[ 3717.555840][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3717.555840][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3717.555840][   T73]      ___sys_sendmsg+0xee/0x170
[ 3717.555840][   T73]      __sys_sendmsg+0xcd/0x170
[ 3717.555840][   T73]      do_syscall_64+0xc6/0x1e0
[ 3717.555840][   T73] 
[ 3717.557828][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3717.557828][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3717.557828][   T73]      ipv6_find_idev+0x102/0x170
[ 3717.557828][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3717.557828][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3717.557828][   T73]      netlink_rcv_skb+0x130/0x360
[ 3717.557828][   T73]      netlink_unicast+0x449/0x710
[ 3717.557828][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3717.557828][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3717.557828][   T73]      ___sys_sendmsg+0xee/0x170
[ 3717.557828][   T73]      __sys_sendmsg+0xcd/0x170
[ 3717.557828][   T73]      do_syscall_64+0xc6/0x1e0
[ 3717.557828][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3717.557828][   T73] 
[ 3717.559379][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3717.559379][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3717.559379][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3717.559379][   T73]      ipv6_find_idev+0x102/0x170
[ 3717.559379][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3717.559379][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3717.559379][   T73]      netlink_rcv_skb+0x130/0x360
[ 3717.559379][   T73]      netlink_unicast+0x449/0x710
[ 3717.559379][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3717.559379][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3717.559379][   T73]      ___sys_sendmsg+0xee/0x170
[ 3717.559379][   T73]      __sys_sendmsg+0xcd/0x170
[ 3717.559379][   T73]      do_syscall_64+0xc6/0x1e0
[ 3717.559379][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3717.559379][   T73] 
[ 3717.561191][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3717.561460][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3717.561460][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3717.561460][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3717.561460][   T73]      fib6_nh_init+0xa22/0x1580
[ 3717.561460][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3717.561460][   T73]      ip6_route_add+0x1c/0x140
[ 3717.561460][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3717.561460][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3717.561460][   T73]      netlink_rcv_skb+0x130/0x360
[ 3717.561460][   T73]      netlink_unicast+0x449/0x710
[ 3717.561460][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3717.561460][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3717.561460][   T73]      ___sys_sendmsg+0xee/0x170
[ 3717.561460][   T73]      __sys_sendmsg+0xcd/0x170
[ 3717.561460][   T73]      do_syscall_64+0xc6/0x1e0
[ 3717.561460][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3717.561460][   T73] 
[ 3717.563543][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3717.563543][   T73]      dst_init+0x84/0x4a0
[ 3717.563543][   T73]      dst_alloc+0x97/0x150
[ 3717.563543][   T73]      ip6_dst_alloc+0x23/0x90
[ 3717.563543][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3717.563543][   T73]      ip6_pol_route+0x56f/0x840
[ 3717.563543][   T73]      fib6_rule_lookup+0x456/0x630
[ 3717.563543][   T73]      ip6_route_input+0x59c/0xa50
[ 3717.563543][   T73]      ipv6_rcv+0x397/0x810
[ 3717.563543][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3717.563543][   T73]      process_backlog+0x101/0x620
[ 3717.563543][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3717.563543][   T73]      net_rx_action+0x495/0xbe0
[ 3717.563543][   T73]      __do_softirq+0x1b5/0x7f6
[ 3717.563543][   T73] 
[ 3717.565376][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3717.565376][   T73]      netdev_get_by_index+0x5e/0x80
[ 3717.565376][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3717.565376][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3717.565376][   T73]      ip6_route_add+0x1c/0x140
[ 3717.565376][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3717.565376][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3717.565376][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3717.565376][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3717.565376][   T73]      netlink_rcv_skb+0x130/0x360
[ 3717.565376][   T73]      netlink_unicast+0x449/0x710
[ 3717.565376][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3717.565376][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3717.565376][   T73]      ___sys_sendmsg+0xee/0x170
[ 3717.565376][   T73]      __sys_sendmsg+0xcd/0x170
[ 3717.565376][   T73]      do_syscall_64+0xc6/0x1e0
[ 3717.565376][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3717.565376][   T73] 
[ 3717.567671][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3717.567671][   T73]      netdev_get_by_index+0x5e/0x80
[ 3717.567671][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3717.567671][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3717.567671][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3717.567671][   T73]      ipv6_add_addr+0x411/0x2000
[ 3717.567671][   T73]      inet6_addr_add+0x30e/0xa40
[ 3717.567671][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3717.567671][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3717.567671][   T73]      netlink_rcv_skb+0x130/0x360
[ 3717.567671][   T73]      netlink_unicast+0x449/0x710
[ 3717.567671][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3717.567671][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3717.567671][   T73]      ___sys_sendmsg+0xee/0x170
[ 3717.567671][   T73]      __sys_sendmsg+0xcd/0x170
[ 3717.567671][   T73]      do_syscall_64+0xc6/0x1e0
[ 3717.567671][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3717.567671][   T73] 
[ 3717.569978][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3717.569978][   T73]      netdev_get_by_index+0x5e/0x80
[ 3717.569978][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3717.569978][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3717.569978][   T73]      ip6_route_add+0x1c/0x140
[ 3717.569978][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3717.569978][   T73]      addrconf_add_dev+0xe2/0x170
[ 3717.569978][   T73]      inet6_addr_add+0x12f/0xa40
[ 3717.569978][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3717.569978][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3717.569978][   T73]      netlink_rcv_skb+0x130/0x360
[ 3717.569978][   T73]      netlink_unicast+0x449/0x710
[ 3717.569978][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3717.569978][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3717.569978][   T73]      ___sys_sendmsg+0xee/0x170
[ 3717.569978][   T73]      __sys_sendmsg+0xcd/0x170
[ 3717.569978][   T73]      do_syscall_64+0xc6/0x1e0
[ 3717.569978][   T73] 
[ 3717.572205][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3717.572205][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3717.572205][   T73]      ipv6_find_idev+0x102/0x170
[ 3717.572205][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3717.572205][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3717.572205][   T73]      netlink_rcv_skb+0x130/0x360
[ 3717.572205][   T73]      netlink_unicast+0x449/0x710
[ 3717.572205][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3717.572205][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3717.572205][   T73]      ___sys_sendmsg+0xee/0x170
[ 3717.572205][   T73]      __sys_sendmsg+0xcd/0x170
[ 3717.572205][   T73]      do_syscall_64+0xc6/0x1e0
[ 3717.572205][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3717.572205][   T73] 
[ 3717.573870][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3717.573870][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3717.573870][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3717.573870][   T73]      ipv6_find_idev+0x102/0x170
[ 3717.573870][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3717.573870][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3717.573870][   T73]      netlink_rcv_skb+0x130/0x360
[ 3717.573870][   T73]      netlink_unicast+0x449/0x710
[ 3717.573870][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3717.573870][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3717.573870][   T73]      ___sys_sendmsg+0xee/0x170
[ 3717.573870][   T73]      __sys_sendmsg+0xcd/0x170
[ 3717.573870][   T73]      do_syscall_64+0xc6/0x1e0
[ 3717.573870][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3717.573870][   T73] 
[ 3717.575809][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3717.576085][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3717.576085][   T73]      netdev_get_by_index+0x5e/0x80
[ 3717.576085][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3717.576085][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3717.576085][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3717.576085][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3717.576085][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3717.576085][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3717.576085][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3717.576085][   T73]      addrconf_dad_begin+0x310/0x670
[ 3717.576085][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3717.576085][   T73]      process_one_work+0x84d/0x18a0
[ 3717.576085][   T73]      worker_thread+0x587/0xd30
[ 3717.576085][   T73]      kthread+0x28a/0x350
[ 3717.576085][   T73]      ret_from_fork+0x31/0x70
[ 3717.576085][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3717.576085][   T73] 
[ 3717.578692][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3717.578692][   T73]      netdev_get_by_index+0x5e/0x80
[ 3717.578692][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3717.578692][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3717.578692][   T73]      ip6_route_add+0x1c/0x140
[ 3717.578692][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3717.578692][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3717.578692][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3717.578692][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3717.578692][   T73]      netlink_rcv_skb+0x130/0x360
[ 3717.578692][   T73]      netlink_unicast+0x449/0x710
[ 3717.578692][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3717.578692][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3717.578692][   T73]      ___sys_sendmsg+0xee/0x170
[ 3717.578692][   T73]      __sys_sendmsg+0xcd/0x170
[ 3717.578692][   T73]      do_syscall_64+0xc6/0x1e0
[ 3717.578692][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3717.578692][   T73] 
[ 3717.580921][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3717.580921][   T73]      netdev_get_by_index+0x5e/0x80
[ 3717.580921][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3717.580921][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3717.580921][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3717.580921][   T73]      ipv6_add_addr+0x411/0x2000
[ 3717.580921][   T73]      inet6_addr_add+0x30e/0xa40
[ 3717.580921][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3717.580921][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3717.580921][   T73]      netlink_rcv_skb+0x130/0x360
[ 3717.580921][   T73]      netlink_unicast+0x449/0x710
[ 3717.580921][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3717.580921][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3717.580921][   T73]      ___sys_sendmsg+0xee/0x170
[ 3717.580921][   T73]      __sys_sendmsg+0xcd/0x170
[ 3717.580921][   T73]      do_syscall_64+0xc6/0x1e0
[ 3717.580921][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3717.580921][   T73] 
[ 3717.583084][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3717.583084][   T73]      netdev_get_by_index+0x5e/0x80
[ 3717.583084][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3717.583084][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3717.583084][   T73]      ip6_route_add+0x1c/0x140
[ 3717.583084][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3717.583084][   T73]      addrconf_add_dev+0xe2/0x170
[ 3717.583084][   T73]      inet6_addr_add+0x12f/0xa40
[ 3717.583084][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3717.583084][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3717.583084][   T73]      netlink_rcv_skb+0x130/0x360
[ 3717.583084][   T73]      netlink_unicast+0x449/0x710
[ 3717.583084][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3717.583084][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3717.583084][   T73]      ___sys_sendmsg+0xee/0x170
[ 3717.583084][   T73]      __sys_sendmsg+0xcd/0x170
[ 3717.583084][   T73]      do_syscall_64+0xc6/0x1e0
[ 3717.583084][   T73] 
[ 3717.585274][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3717.585274][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3717.585274][   T73]      ipv6_find_idev+0x102/0x170
[ 3717.585274][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3717.585274][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3717.585274][   T73]      netlink_rcv_skb+0x130/0x360
[ 3717.585274][   T73]      netlink_unicast+0x449/0x710
[ 3717.585274][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3717.585274][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3717.585274][   T73]      ___sys_sendmsg+0xee/0x170
[ 3717.585274][   T73]      __sys_sendmsg+0xcd/0x170
[ 3717.585274][   T73]      do_syscall_64+0xc6/0x1e0
[ 3717.585274][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3717.585274][   T73] 
[ 3717.586982][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3717.586982][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3717.586982][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3717.586982][   T73]      ipv6_find_idev+0x102/0x170
[ 3717.586982][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3717.586982][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3717.586982][   T73]      netlink_rcv_skb+0x130/0x360
[ 3717.586982][   T73]      netlink_unicast+0x449/0x710
[ 3717.586982][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3717.586982][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3717.586982][   T73]      ___sys_sendmsg+0xee/0x170
[ 3717.586982][   T73]      __sys_sendmsg+0xcd/0x170
[ 3717.586982][   T73]      do_syscall_64+0xc6/0x1e0
[ 3717.586982][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3717.586982][   T73] 
[ 3727.831779][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3727.832292][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3727.832292][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3727.832292][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3727.832292][   T73]      fib6_nh_init+0xa22/0x1580
[ 3727.832292][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3727.832292][   T73]      ip6_route_add+0x1c/0x140
[ 3727.832292][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3727.832292][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3727.832292][   T73]      netlink_rcv_skb+0x130/0x360
[ 3727.832292][   T73]      netlink_unicast+0x449/0x710
[ 3727.832292][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3727.832292][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3727.832292][   T73]      ___sys_sendmsg+0xee/0x170
[ 3727.832292][   T73]      __sys_sendmsg+0xcd/0x170
[ 3727.832292][   T73]      do_syscall_64+0xc6/0x1e0
[ 3727.832292][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3727.832292][   T73] 
[ 3727.834205][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3727.834205][   T73]      dst_init+0x84/0x4a0
[ 3727.834205][   T73]      dst_alloc+0x97/0x150
[ 3727.834205][   T73]      ip6_dst_alloc+0x23/0x90
[ 3727.834205][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3727.834205][   T73]      ip6_pol_route+0x56f/0x840
[ 3727.834205][   T73]      fib6_rule_lookup+0x456/0x630
[ 3727.834205][   T73]      ip6_route_input+0x59c/0xa50
[ 3727.834205][   T73]      ipv6_rcv+0x397/0x810
[ 3727.834205][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3727.834205][   T73]      process_backlog+0x101/0x620
[ 3727.834205][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3727.834205][   T73]      net_rx_action+0x495/0xbe0
[ 3727.834205][   T73]      __do_softirq+0x1b5/0x7f6
[ 3727.834205][   T73] 
[ 3727.835896][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3727.835896][   T73]      netdev_get_by_index+0x5e/0x80
[ 3727.835896][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3727.835896][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3727.835896][   T73]      ip6_route_add+0x1c/0x140
[ 3727.835896][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3727.835896][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3727.835896][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3727.835896][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3727.835896][   T73]      netlink_rcv_skb+0x130/0x360
[ 3727.835896][   T73]      netlink_unicast+0x449/0x710
[ 3727.835896][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3727.835896][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3727.835896][   T73]      ___sys_sendmsg+0xee/0x170
[ 3727.835896][   T73]      __sys_sendmsg+0xcd/0x170
[ 3727.835896][   T73]      do_syscall_64+0xc6/0x1e0
[ 3727.835896][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3727.835896][   T73] 
[ 3727.838295][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3727.838295][   T73]      netdev_get_by_index+0x5e/0x80
[ 3727.838295][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3727.838295][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3727.838295][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3727.838295][   T73]      ipv6_add_addr+0x411/0x2000
[ 3727.838295][   T73]      inet6_addr_add+0x30e/0xa40
[ 3727.838295][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3727.838295][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3727.838295][   T73]      netlink_rcv_skb+0x130/0x360
[ 3727.838295][   T73]      netlink_unicast+0x449/0x710
[ 3727.838295][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3727.838295][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3727.838295][   T73]      ___sys_sendmsg+0xee/0x170
[ 3727.838295][   T73]      __sys_sendmsg+0xcd/0x170
[ 3727.838295][   T73]      do_syscall_64+0xc6/0x1e0
[ 3727.838295][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3727.838295][   T73] 
[ 3727.840315][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3727.840315][   T73]      netdev_get_by_index+0x5e/0x80
[ 3727.840315][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3727.840315][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3727.840315][   T73]      ip6_route_add+0x1c/0x140
[ 3727.840315][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3727.840315][   T73]      addrconf_add_dev+0xe2/0x170
[ 3727.840315][   T73]      inet6_addr_add+0x12f/0xa40
[ 3727.840315][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3727.840315][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3727.840315][   T73]      netlink_rcv_skb+0x130/0x360
[ 3727.840315][   T73]      netlink_unicast+0x449/0x710
[ 3727.840315][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3727.840315][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3727.840315][   T73]      ___sys_sendmsg+0xee/0x170
[ 3727.840315][   T73]      __sys_sendmsg+0xcd/0x170
[ 3727.840315][   T73]      do_syscall_64+0xc6/0x1e0
[ 3727.840315][   T73] 
[ 3727.842306][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3727.842306][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3727.842306][   T73]      ipv6_find_idev+0x102/0x170
[ 3727.842306][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3727.842306][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3727.842306][   T73]      netlink_rcv_skb+0x130/0x360
[ 3727.842306][   T73]      netlink_unicast+0x449/0x710
[ 3727.842306][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3727.842306][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3727.842306][   T73]      ___sys_sendmsg+0xee/0x170
[ 3727.842306][   T73]      __sys_sendmsg+0xcd/0x170
[ 3727.842306][   T73]      do_syscall_64+0xc6/0x1e0
[ 3727.842306][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3727.842306][   T73] 
[ 3727.843851][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3727.843851][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3727.843851][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3727.843851][   T73]      ipv6_find_idev+0x102/0x170
[ 3727.843851][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3727.843851][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3727.843851][   T73]      netlink_rcv_skb+0x130/0x360
[ 3727.843851][   T73]      netlink_unicast+0x449/0x710
[ 3727.843851][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3727.843851][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3727.843851][   T73]      ___sys_sendmsg+0xee/0x170
[ 3727.843851][   T73]      __sys_sendmsg+0xcd/0x170
[ 3727.843851][   T73]      do_syscall_64+0xc6/0x1e0
[ 3727.843851][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3727.843851][   T73] 
[ 3727.845563][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3727.845867][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3727.845867][   T73]      netdev_get_by_index+0x5e/0x80
[ 3727.845867][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3727.845867][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3727.845867][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3727.845867][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3727.845867][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3727.845867][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3727.845867][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3727.845867][   T73]      addrconf_dad_begin+0x310/0x670
[ 3727.845867][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3727.845867][   T73]      process_one_work+0x84d/0x18a0
[ 3727.845867][   T73]      worker_thread+0x587/0xd30
[ 3727.845867][   T73]      kthread+0x28a/0x350
[ 3727.845867][   T73]      ret_from_fork+0x31/0x70
[ 3727.845867][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3727.845867][   T73] 
[ 3727.847819][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3727.847819][   T73]      netdev_get_by_index+0x5e/0x80
[ 3727.847819][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3727.847819][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3727.847819][   T73]      ip6_route_add+0x1c/0x140
[ 3727.847819][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3727.847819][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3727.847819][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3727.847819][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3727.847819][   T73]      netlink_rcv_skb+0x130/0x360
[ 3727.847819][   T73]      netlink_unicast+0x449/0x710
[ 3727.847819][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3727.847819][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3727.847819][   T73]      ___sys_sendmsg+0xee/0x170
[ 3727.847819][   T73]      __sys_sendmsg+0xcd/0x170
[ 3727.847819][   T73]      do_syscall_64+0xc6/0x1e0
[ 3727.847819][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3727.847819][   T73] 
[ 3727.849867][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3727.849867][   T73]      netdev_get_by_index+0x5e/0x80
[ 3727.849867][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3727.849867][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3727.849867][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3727.849867][   T73]      ipv6_add_addr+0x411/0x2000
[ 3727.849867][   T73]      inet6_addr_add+0x30e/0xa40
[ 3727.849867][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3727.849867][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3727.849867][   T73]      netlink_rcv_skb+0x130/0x360
[ 3727.849867][   T73]      netlink_unicast+0x449/0x710
[ 3727.849867][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3727.849867][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3727.849867][   T73]      ___sys_sendmsg+0xee/0x170
[ 3727.849867][   T73]      __sys_sendmsg+0xcd/0x170
[ 3727.849867][   T73]      do_syscall_64+0xc6/0x1e0
[ 3727.849867][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3727.849867][   T73] 
[ 3727.851888][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3727.851888][   T73]      netdev_get_by_index+0x5e/0x80
[ 3727.851888][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3727.851888][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3727.851888][   T73]      ip6_route_add+0x1c/0x140
[ 3727.851888][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3727.851888][   T73]      addrconf_add_dev+0xe2/0x170
[ 3727.851888][   T73]      inet6_addr_add+0x12f/0xa40
[ 3727.851888][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3727.851888][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3727.851888][   T73]      netlink_rcv_skb+0x130/0x360
[ 3727.851888][   T73]      netlink_unicast+0x449/0x710
[ 3727.851888][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3727.851888][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3727.851888][   T73]      ___sys_sendmsg+0xee/0x170
[ 3727.851888][   T73]      __sys_sendmsg+0xcd/0x170
[ 3727.851888][   T73]      do_syscall_64+0xc6/0x1e0
[ 3727.851888][   T73] 
[ 3727.853876][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3727.853876][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3727.853876][   T73]      ipv6_find_idev+0x102/0x170
[ 3727.853876][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3727.853876][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3727.853876][   T73]      netlink_rcv_skb+0x130/0x360
[ 3727.853876][   T73]      netlink_unicast+0x449/0x710
[ 3727.853876][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3727.853876][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3727.853876][   T73]      ___sys_sendmsg+0xee/0x170
[ 3727.853876][   T73]      __sys_sendmsg+0xcd/0x170
[ 3727.853876][   T73]      do_syscall_64+0xc6/0x1e0
[ 3727.853876][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3727.853876][   T73] 
[ 3727.855419][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3727.855419][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3727.855419][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3727.855419][   T73]      ipv6_find_idev+0x102/0x170
[ 3727.855419][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3727.855419][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3727.855419][   T73]      netlink_rcv_skb+0x130/0x360
[ 3727.855419][   T73]      netlink_unicast+0x449/0x710
[ 3727.855419][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3727.855419][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3727.855419][   T73]      ___sys_sendmsg+0xee/0x170
[ 3727.855419][   T73]      __sys_sendmsg+0xcd/0x170
[ 3727.855419][   T73]      do_syscall_64+0xc6/0x1e0
[ 3727.855419][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3727.855419][   T73] 
[ 3727.857122][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3727.857426][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3727.857426][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3727.857426][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3727.857426][   T73]      fib6_nh_init+0xa22/0x1580
[ 3727.857426][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3727.857426][   T73]      ip6_route_add+0x1c/0x140
[ 3727.857426][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3727.857426][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3727.857426][   T73]      netlink_rcv_skb+0x130/0x360
[ 3727.857426][   T73]      netlink_unicast+0x449/0x710
[ 3727.857426][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3727.857426][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3727.857426][   T73]      ___sys_sendmsg+0xee/0x170
[ 3727.857426][   T73]      __sys_sendmsg+0xcd/0x170
[ 3727.857426][   T73]      do_syscall_64+0xc6/0x1e0
[ 3727.857426][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3727.857426][   T73] 
[ 3727.859512][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3727.859512][   T73]      dst_init+0x84/0x4a0
[ 3727.859512][   T73]      dst_alloc+0x97/0x150
[ 3727.859512][   T73]      ip6_dst_alloc+0x23/0x90
[ 3727.859512][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3727.859512][   T73]      ip6_pol_route+0x56f/0x840
[ 3727.859512][   T73]      fib6_rule_lookup+0x456/0x630
[ 3727.859512][   T73]      ip6_route_input+0x59c/0xa50
[ 3727.859512][   T73]      ipv6_rcv+0x397/0x810
[ 3727.859512][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3727.859512][   T73]      process_backlog+0x101/0x620
[ 3727.859512][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3727.859512][   T73]      net_rx_action+0x495/0xbe0
[ 3727.859512][   T73]      __do_softirq+0x1b5/0x7f6
[ 3727.859512][   T73] 
[ 3727.861421][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3727.861421][   T73]      netdev_get_by_index+0x5e/0x80
[ 3727.861421][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3727.861421][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3727.861421][   T73]      ip6_route_add+0x1c/0x140
[ 3727.861421][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3727.861421][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3727.861421][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3727.861421][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3727.861421][   T73]      netlink_rcv_skb+0x130/0x360
[ 3727.861421][   T73]      netlink_unicast+0x449/0x710
[ 3727.861421][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3727.861421][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3727.861421][   T73]      ___sys_sendmsg+0xee/0x170
[ 3727.861421][   T73]      __sys_sendmsg+0xcd/0x170
[ 3727.861421][   T73]      do_syscall_64+0xc6/0x1e0
[ 3727.861421][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3727.861421][   T73] 
[ 3727.863695][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3727.863695][   T73]      netdev_get_by_index+0x5e/0x80
[ 3727.863695][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3727.863695][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3727.863695][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3727.863695][   T73]      ipv6_add_addr+0x411/0x2000
[ 3727.863695][   T73]      inet6_addr_add+0x30e/0xa40
[ 3727.863695][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3727.863695][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3727.863695][   T73]      netlink_rcv_skb+0x130/0x360
[ 3727.863695][   T73]      netlink_unicast+0x449/0x710
[ 3727.863695][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3727.863695][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3727.863695][   T73]      ___sys_sendmsg+0xee/0x170
[ 3727.863695][   T73]      __sys_sendmsg+0xcd/0x170
[ 3727.863695][   T73]      do_syscall_64+0xc6/0x1e0
[ 3727.863695][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3727.863695][   T73] 
[ 3727.865971][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3727.865971][   T73]      netdev_get_by_index+0x5e/0x80
[ 3727.865971][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3727.865971][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3727.865971][   T73]      ip6_route_add+0x1c/0x140
[ 3727.865971][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3727.865971][   T73]      addrconf_add_dev+0xe2/0x170
[ 3727.865971][   T73]      inet6_addr_add+0x12f/0xa40
[ 3727.865971][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3727.865971][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3727.865971][   T73]      netlink_rcv_skb+0x130/0x360
[ 3727.865971][   T73]      netlink_unicast+0x449/0x710
[ 3727.865971][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3727.865971][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3727.865971][   T73]      ___sys_sendmsg+0xee/0x170
[ 3727.865971][   T73]      __sys_sendmsg+0xcd/0x170
[ 3727.865971][   T73]      do_syscall_64+0xc6/0x1e0
[ 3727.865971][   T73] 
[ 3727.868509][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3727.868509][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3727.868509][   T73]      ipv6_find_idev+0x102/0x170
[ 3727.868509][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3727.868509][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3727.868509][   T73]      netlink_rcv_skb+0x130/0x360
[ 3727.868509][   T73]      netlink_unicast+0x449/0x710
[ 3727.868509][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3727.868509][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3727.868509][   T73]      ___sys_sendmsg+0xee/0x170
[ 3727.868509][   T73]      __sys_sendmsg+0xcd/0x170
[ 3727.868509][   T73]      do_syscall_64+0xc6/0x1e0
[ 3727.868509][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3727.868509][   T73] 
[ 3727.870298][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3727.870298][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3727.870298][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3727.870298][   T73]      ipv6_find_idev+0x102/0x170
[ 3727.870298][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3727.870298][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3727.870298][   T73]      netlink_rcv_skb+0x130/0x360
[ 3727.870298][   T73]      netlink_unicast+0x449/0x710
[ 3727.870298][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3727.870298][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3727.870298][   T73]      ___sys_sendmsg+0xee/0x170
[ 3727.870298][   T73]      __sys_sendmsg+0xcd/0x170
[ 3727.870298][   T73]      do_syscall_64+0xc6/0x1e0
[ 3727.870298][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3727.870298][   T73] 
[ 3727.872276][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3727.872557][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3727.872557][   T73]      netdev_get_by_index+0x5e/0x80
[ 3727.872557][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3727.872557][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3727.872557][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3727.872557][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3727.872557][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3727.872557][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3727.872557][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3727.872557][   T73]      addrconf_dad_begin+0x310/0x670
[ 3727.872557][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3727.872557][   T73]      process_one_work+0x84d/0x18a0
[ 3727.872557][   T73]      worker_thread+0x587/0xd30
[ 3727.872557][   T73]      kthread+0x28a/0x350
[ 3727.872557][   T73]      ret_from_fork+0x31/0x70
[ 3727.872557][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3727.872557][   T73] 
[ 3727.874722][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3727.874722][   T73]      netdev_get_by_index+0x5e/0x80
[ 3727.874722][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3727.874722][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3727.874722][   T73]      ip6_route_add+0x1c/0x140
[ 3727.874722][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3727.874722][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3727.874722][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3727.874722][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3727.874722][   T73]      netlink_rcv_skb+0x130/0x360
[ 3727.874722][   T73]      netlink_unicast+0x449/0x710
[ 3727.874722][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3727.874722][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3727.874722][   T73]      ___sys_sendmsg+0xee/0x170
[ 3727.874722][   T73]      __sys_sendmsg+0xcd/0x170
[ 3727.874722][   T73]      do_syscall_64+0xc6/0x1e0
[ 3727.874722][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3727.874722][   T73] 
[ 3727.876998][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3727.876998][   T73]      netdev_get_by_index+0x5e/0x80
[ 3727.876998][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3727.876998][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3727.876998][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3727.876998][   T73]      ipv6_add_addr+0x411/0x2000
[ 3727.876998][   T73]      inet6_addr_add+0x30e/0xa40
[ 3727.876998][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3727.876998][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3727.876998][   T73]      netlink_rcv_skb+0x130/0x360
[ 3727.876998][   T73]      netlink_unicast+0x449/0x710
[ 3727.876998][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3727.876998][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3727.876998][   T73]      ___sys_sendmsg+0xee/0x170
[ 3727.876998][   T73]      __sys_sendmsg+0xcd/0x170
[ 3727.876998][   T73]      do_syscall_64+0xc6/0x1e0
[ 3727.876998][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3727.876998][   T73] 
[ 3727.879224][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3727.879224][   T73]      netdev_get_by_index+0x5e/0x80
[ 3727.879224][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3727.879224][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3727.879224][   T73]      ip6_route_add+0x1c/0x140
[ 3727.879224][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3727.879224][   T73]      addrconf_add_dev+0xe2/0x170
[ 3727.879224][   T73]      inet6_addr_add+0x12f/0xa40
[ 3727.879224][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3727.879224][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3727.879224][   T73]      netlink_rcv_skb+0x130/0x360
[ 3727.879224][   T73]      netlink_unicast+0x449/0x710
[ 3727.879224][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3727.879224][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3727.879224][   T73]      ___sys_sendmsg+0xee/0x170
[ 3727.879224][   T73]      __sys_sendmsg+0xcd/0x170
[ 3727.879224][   T73]      do_syscall_64+0xc6/0x1e0
[ 3727.879224][   T73] 
[ 3727.881498][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3727.881498][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3727.881498][   T73]      ipv6_find_idev+0x102/0x170
[ 3727.881498][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3727.881498][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3727.881498][   T73]      netlink_rcv_skb+0x130/0x360
[ 3727.881498][   T73]      netlink_unicast+0x449/0x710
[ 3727.881498][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3727.881498][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3727.881498][   T73]      ___sys_sendmsg+0xee/0x170
[ 3727.881498][   T73]      __sys_sendmsg+0xcd/0x170
[ 3727.881498][   T73]      do_syscall_64+0xc6/0x1e0
[ 3727.881498][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3727.881498][   T73] 
[ 3727.883235][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3727.883235][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3727.883235][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3727.883235][   T73]      ipv6_find_idev+0x102/0x170
[ 3727.883235][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3727.883235][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3727.883235][   T73]      netlink_rcv_skb+0x130/0x360
[ 3727.883235][   T73]      netlink_unicast+0x449/0x710
[ 3727.883235][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3727.883235][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3727.883235][   T73]      ___sys_sendmsg+0xee/0x170
[ 3727.883235][   T73]      __sys_sendmsg+0xcd/0x170
[ 3727.883235][   T73]      do_syscall_64+0xc6/0x1e0
[ 3727.883235][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3727.883235][   T73] 
[ 3737.911694][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3737.912195][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3737.912195][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3737.912195][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3737.912195][   T73]      fib6_nh_init+0xa22/0x1580
[ 3737.912195][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3737.912195][   T73]      ip6_route_add+0x1c/0x140
[ 3737.912195][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3737.912195][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3737.912195][   T73]      netlink_rcv_skb+0x130/0x360
[ 3737.912195][   T73]      netlink_unicast+0x449/0x710
[ 3737.912195][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3737.912195][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3737.912195][   T73]      ___sys_sendmsg+0xee/0x170
[ 3737.912195][   T73]      __sys_sendmsg+0xcd/0x170
[ 3737.912195][   T73]      do_syscall_64+0xc6/0x1e0
[ 3737.912195][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3737.912195][   T73] 
[ 3737.914116][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3737.914116][   T73]      dst_init+0x84/0x4a0
[ 3737.914116][   T73]      dst_alloc+0x97/0x150
[ 3737.914116][   T73]      ip6_dst_alloc+0x23/0x90
[ 3737.914116][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3737.914116][   T73]      ip6_pol_route+0x56f/0x840
[ 3737.914116][   T73]      fib6_rule_lookup+0x456/0x630
[ 3737.914116][   T73]      ip6_route_input+0x59c/0xa50
[ 3737.914116][   T73]      ipv6_rcv+0x397/0x810
[ 3737.914116][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3737.914116][   T73]      process_backlog+0x101/0x620
[ 3737.914116][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3737.914116][   T73]      net_rx_action+0x495/0xbe0
[ 3737.914116][   T73]      __do_softirq+0x1b5/0x7f6
[ 3737.914116][   T73] 
[ 3737.915803][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3737.915803][   T73]      netdev_get_by_index+0x5e/0x80
[ 3737.915803][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3737.915803][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3737.915803][   T73]      ip6_route_add+0x1c/0x140
[ 3737.915803][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3737.915803][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3737.915803][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3737.915803][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3737.915803][   T73]      netlink_rcv_skb+0x130/0x360
[ 3737.915803][   T73]      netlink_unicast+0x449/0x710
[ 3737.915803][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3737.915803][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3737.915803][   T73]      ___sys_sendmsg+0xee/0x170
[ 3737.915803][   T73]      __sys_sendmsg+0xcd/0x170
[ 3737.915803][   T73]      do_syscall_64+0xc6/0x1e0
[ 3737.915803][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3737.915803][   T73] 
[ 3737.917816][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3737.917816][   T73]      netdev_get_by_index+0x5e/0x80
[ 3737.917816][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3737.917816][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3737.917816][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3737.917816][   T73]      ipv6_add_addr+0x411/0x2000
[ 3737.917816][   T73]      inet6_addr_add+0x30e/0xa40
[ 3737.917816][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3737.917816][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3737.917816][   T73]      netlink_rcv_skb+0x130/0x360
[ 3737.917816][   T73]      netlink_unicast+0x449/0x710
[ 3737.917816][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3737.917816][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3737.917816][   T73]      ___sys_sendmsg+0xee/0x170
[ 3737.917816][   T73]      __sys_sendmsg+0xcd/0x170
[ 3737.917816][   T73]      do_syscall_64+0xc6/0x1e0
[ 3737.917816][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3737.917816][   T73] 
[ 3737.919825][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3737.919825][   T73]      netdev_get_by_index+0x5e/0x80
[ 3737.919825][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3737.919825][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3737.919825][   T73]      ip6_route_add+0x1c/0x140
[ 3737.919825][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3737.919825][   T73]      addrconf_add_dev+0xe2/0x170
[ 3737.919825][   T73]      inet6_addr_add+0x12f/0xa40
[ 3737.919825][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3737.919825][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3737.919825][   T73]      netlink_rcv_skb+0x130/0x360
[ 3737.919825][   T73]      netlink_unicast+0x449/0x710
[ 3737.919825][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3737.919825][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3737.919825][   T73]      ___sys_sendmsg+0xee/0x170
[ 3737.919825][   T73]      __sys_sendmsg+0xcd/0x170
[ 3737.919825][   T73]      do_syscall_64+0xc6/0x1e0
[ 3737.919825][   T73] 
[ 3737.921809][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3737.921809][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3737.921809][   T73]      ipv6_find_idev+0x102/0x170
[ 3737.921809][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3737.921809][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3737.921809][   T73]      netlink_rcv_skb+0x130/0x360
[ 3737.921809][   T73]      netlink_unicast+0x449/0x710
[ 3737.921809][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3737.921809][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3737.921809][   T73]      ___sys_sendmsg+0xee/0x170
[ 3737.921809][   T73]      __sys_sendmsg+0xcd/0x170
[ 3737.921809][   T73]      do_syscall_64+0xc6/0x1e0
[ 3737.921809][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3737.921809][   T73] 
[ 3737.923380][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3737.923380][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3737.923380][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3737.923380][   T73]      ipv6_find_idev+0x102/0x170
[ 3737.923380][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3737.923380][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3737.923380][   T73]      netlink_rcv_skb+0x130/0x360
[ 3737.923380][   T73]      netlink_unicast+0x449/0x710
[ 3737.923380][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3737.923380][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3737.923380][   T73]      ___sys_sendmsg+0xee/0x170
[ 3737.923380][   T73]      __sys_sendmsg+0xcd/0x170
[ 3737.923380][   T73]      do_syscall_64+0xc6/0x1e0
[ 3737.923380][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3737.923380][   T73] 
[ 3737.925109][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3737.925409][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3737.925409][   T73]      netdev_get_by_index+0x5e/0x80
[ 3737.925409][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3737.925409][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3737.925409][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3737.925409][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3737.925409][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3737.925409][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3737.925409][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3737.925409][   T73]      addrconf_dad_begin+0x310/0x670
[ 3737.925409][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3737.925409][   T73]      process_one_work+0x84d/0x18a0
[ 3737.925409][   T73]      worker_thread+0x587/0xd30
[ 3737.925409][   T73]      kthread+0x28a/0x350
[ 3737.925409][   T73]      ret_from_fork+0x31/0x70
[ 3737.925409][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3737.925409][   T73] 
[ 3737.927359][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3737.927359][   T73]      netdev_get_by_index+0x5e/0x80
[ 3737.927359][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3737.927359][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3737.927359][   T73]      ip6_route_add+0x1c/0x140
[ 3737.927359][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3737.927359][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3737.927359][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3737.927359][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3737.927359][   T73]      netlink_rcv_skb+0x130/0x360
[ 3737.927359][   T73]      netlink_unicast+0x449/0x710
[ 3737.927359][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3737.927359][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3737.927359][   T73]      ___sys_sendmsg+0xee/0x170
[ 3737.927359][   T73]      __sys_sendmsg+0xcd/0x170
[ 3737.927359][   T73]      do_syscall_64+0xc6/0x1e0
[ 3737.927359][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3737.927359][   T73] 
[ 3737.929401][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3737.929401][   T73]      netdev_get_by_index+0x5e/0x80
[ 3737.929401][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3737.929401][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3737.929401][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3737.929401][   T73]      ipv6_add_addr+0x411/0x2000
[ 3737.929401][   T73]      inet6_addr_add+0x30e/0xa40
[ 3737.929401][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3737.929401][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3737.929401][   T73]      netlink_rcv_skb+0x130/0x360
[ 3737.929401][   T73]      netlink_unicast+0x449/0x710
[ 3737.929401][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3737.929401][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3737.929401][   T73]      ___sys_sendmsg+0xee/0x170
[ 3737.929401][   T73]      __sys_sendmsg+0xcd/0x170
[ 3737.929401][   T73]      do_syscall_64+0xc6/0x1e0
[ 3737.929401][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3737.929401][   T73] 
[ 3737.931433][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3737.931433][   T73]      netdev_get_by_index+0x5e/0x80
[ 3737.931433][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3737.931433][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3737.931433][   T73]      ip6_route_add+0x1c/0x140
[ 3737.931433][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3737.931433][   T73]      addrconf_add_dev+0xe2/0x170
[ 3737.931433][   T73]      inet6_addr_add+0x12f/0xa40
[ 3737.931433][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3737.931433][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3737.931433][   T73]      netlink_rcv_skb+0x130/0x360
[ 3737.931433][   T73]      netlink_unicast+0x449/0x710
[ 3737.931433][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3737.931433][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3737.931433][   T73]      ___sys_sendmsg+0xee/0x170
[ 3737.931433][   T73]      __sys_sendmsg+0xcd/0x170
[ 3737.931433][   T73]      do_syscall_64+0xc6/0x1e0
[ 3737.931433][   T73] 
[ 3737.933422][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3737.933422][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3737.933422][   T73]      ipv6_find_idev+0x102/0x170
[ 3737.933422][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3737.933422][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3737.933422][   T73]      netlink_rcv_skb+0x130/0x360
[ 3737.933422][   T73]      netlink_unicast+0x449/0x710
[ 3737.933422][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3737.933422][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3737.933422][   T73]      ___sys_sendmsg+0xee/0x170
[ 3737.933422][   T73]      __sys_sendmsg+0xcd/0x170
[ 3737.933422][   T73]      do_syscall_64+0xc6/0x1e0
[ 3737.933422][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3737.933422][   T73] 
[ 3737.934985][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3737.934985][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3737.934985][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3737.934985][   T73]      ipv6_find_idev+0x102/0x170
[ 3737.934985][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3737.934985][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3737.934985][   T73]      netlink_rcv_skb+0x130/0x360
[ 3737.934985][   T73]      netlink_unicast+0x449/0x710
[ 3737.934985][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3737.934985][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3737.934985][   T73]      ___sys_sendmsg+0xee/0x170
[ 3737.934985][   T73]      __sys_sendmsg+0xcd/0x170
[ 3737.934985][   T73]      do_syscall_64+0xc6/0x1e0
[ 3737.934985][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3737.934985][   T73] 
[ 3737.936713][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3737.937004][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3737.937004][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3737.937004][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3737.937004][   T73]      fib6_nh_init+0xa22/0x1580
[ 3737.937004][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3737.937004][   T73]      ip6_route_add+0x1c/0x140
[ 3737.937004][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3737.937004][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3737.937004][   T73]      netlink_rcv_skb+0x130/0x360
[ 3737.937004][   T73]      netlink_unicast+0x449/0x710
[ 3737.937004][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3737.937004][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3737.937004][   T73]      ___sys_sendmsg+0xee/0x170
[ 3737.937004][   T73]      __sys_sendmsg+0xcd/0x170
[ 3737.937004][   T73]      do_syscall_64+0xc6/0x1e0
[ 3737.937004][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3737.937004][   T73] 
[ 3737.939131][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3737.939131][   T73]      dst_init+0x84/0x4a0
[ 3737.939131][   T73]      dst_alloc+0x97/0x150
[ 3737.939131][   T73]      ip6_dst_alloc+0x23/0x90
[ 3737.939131][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3737.939131][   T73]      ip6_pol_route+0x56f/0x840
[ 3737.939131][   T73]      fib6_rule_lookup+0x456/0x630
[ 3737.939131][   T73]      ip6_route_input+0x59c/0xa50
[ 3737.939131][   T73]      ipv6_rcv+0x397/0x810
[ 3737.939131][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3737.939131][   T73]      process_backlog+0x101/0x620
[ 3737.939131][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3737.939131][   T73]      net_rx_action+0x495/0xbe0
[ 3737.939131][   T73]      __do_softirq+0x1b5/0x7f6
[ 3737.939131][   T73] 
[ 3737.940981][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3737.940981][   T73]      netdev_get_by_index+0x5e/0x80
[ 3737.940981][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3737.940981][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3737.940981][   T73]      ip6_route_add+0x1c/0x140
[ 3737.940981][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3737.940981][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3737.940981][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3737.940981][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3737.940981][   T73]      netlink_rcv_skb+0x130/0x360
[ 3737.940981][   T73]      netlink_unicast+0x449/0x710
[ 3737.940981][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3737.940981][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3737.940981][   T73]      ___sys_sendmsg+0xee/0x170
[ 3737.940981][   T73]      __sys_sendmsg+0xcd/0x170
[ 3737.940981][   T73]      do_syscall_64+0xc6/0x1e0
[ 3737.940981][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3737.940981][   T73] 
[ 3737.943285][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3737.943285][   T73]      netdev_get_by_index+0x5e/0x80
[ 3737.943285][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3737.943285][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3737.943285][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3737.943285][   T73]      ipv6_add_addr+0x411/0x2000
[ 3737.943285][   T73]      inet6_addr_add+0x30e/0xa40
[ 3737.943285][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3737.943285][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3737.943285][   T73]      netlink_rcv_skb+0x130/0x360
[ 3737.943285][   T73]      netlink_unicast+0x449/0x710
[ 3737.943285][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3737.943285][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3737.943285][   T73]      ___sys_sendmsg+0xee/0x170
[ 3737.943285][   T73]      __sys_sendmsg+0xcd/0x170
[ 3737.943285][   T73]      do_syscall_64+0xc6/0x1e0
[ 3737.943285][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3737.943285][   T73] 
[ 3737.945634][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3737.945634][   T73]      netdev_get_by_index+0x5e/0x80
[ 3737.945634][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3737.945634][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3737.945634][   T73]      ip6_route_add+0x1c/0x140
[ 3737.945634][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3737.945634][   T73]      addrconf_add_dev+0xe2/0x170
[ 3737.945634][   T73]      inet6_addr_add+0x12f/0xa40
[ 3737.945634][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3737.945634][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3737.945634][   T73]      netlink_rcv_skb+0x130/0x360
[ 3737.945634][   T73]      netlink_unicast+0x449/0x710
[ 3737.945634][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3737.945634][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3737.945634][   T73]      ___sys_sendmsg+0xee/0x170
[ 3737.945634][   T73]      __sys_sendmsg+0xcd/0x170
[ 3737.945634][   T73]      do_syscall_64+0xc6/0x1e0
[ 3737.945634][   T73] 
[ 3737.947822][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3737.947822][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3737.947822][   T73]      ipv6_find_idev+0x102/0x170
[ 3737.947822][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3737.947822][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3737.947822][   T73]      netlink_rcv_skb+0x130/0x360
[ 3737.947822][   T73]      netlink_unicast+0x449/0x710
[ 3737.947822][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3737.947822][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3737.947822][   T73]      ___sys_sendmsg+0xee/0x170
[ 3737.947822][   T73]      __sys_sendmsg+0xcd/0x170
[ 3737.947822][   T73]      do_syscall_64+0xc6/0x1e0
[ 3737.947822][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3737.947822][   T73] 
[ 3737.949561][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3737.949561][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3737.949561][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3737.949561][   T73]      ipv6_find_idev+0x102/0x170
[ 3737.949561][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3737.949561][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3737.949561][   T73]      netlink_rcv_skb+0x130/0x360
[ 3737.949561][   T73]      netlink_unicast+0x449/0x710
[ 3737.949561][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3737.949561][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3737.949561][   T73]      ___sys_sendmsg+0xee/0x170
[ 3737.949561][   T73]      __sys_sendmsg+0xcd/0x170
[ 3737.949561][   T73]      do_syscall_64+0xc6/0x1e0
[ 3737.949561][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3737.949561][   T73] 
[ 3737.951524][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3737.952244][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3737.952244][   T73]      netdev_get_by_index+0x5e/0x80
[ 3737.952244][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3737.952244][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3737.952244][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3737.952244][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3737.952244][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3737.952244][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3737.952244][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3737.952244][   T73]      addrconf_dad_begin+0x310/0x670
[ 3737.952244][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3737.952244][   T73]      process_one_work+0x84d/0x18a0
[ 3737.952244][   T73]      worker_thread+0x587/0xd30
[ 3737.952244][   T73]      kthread+0x28a/0x350
[ 3737.952244][   T73]      ret_from_fork+0x31/0x70
[ 3737.952244][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3737.952244][   T73] 
[ 3737.954183][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3737.954183][   T73]      netdev_get_by_index+0x5e/0x80
[ 3737.954183][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3737.954183][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3737.954183][   T73]      ip6_route_add+0x1c/0x140
[ 3737.954183][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3737.954183][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3737.954183][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3737.954183][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3737.954183][   T73]      netlink_rcv_skb+0x130/0x360
[ 3737.954183][   T73]      netlink_unicast+0x449/0x710
[ 3737.954183][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3737.954183][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3737.954183][   T73]      ___sys_sendmsg+0xee/0x170
[ 3737.954183][   T73]      __sys_sendmsg+0xcd/0x170
[ 3737.954183][   T73]      do_syscall_64+0xc6/0x1e0
[ 3737.954183][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3737.954183][   T73] 
[ 3737.956340][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3737.956340][   T73]      netdev_get_by_index+0x5e/0x80
[ 3737.956340][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3737.956340][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3737.956340][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3737.956340][   T73]      ipv6_add_addr+0x411/0x2000
[ 3737.956340][   T73]      inet6_addr_add+0x30e/0xa40
[ 3737.956340][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3737.956340][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3737.956340][   T73]      netlink_rcv_skb+0x130/0x360
[ 3737.956340][   T73]      netlink_unicast+0x449/0x710
[ 3737.956340][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3737.956340][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3737.956340][   T73]      ___sys_sendmsg+0xee/0x170
[ 3737.956340][   T73]      __sys_sendmsg+0xcd/0x170
[ 3737.956340][   T73]      do_syscall_64+0xc6/0x1e0
[ 3737.956340][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3737.956340][   T73] 
[ 3737.958664][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3737.958664][   T73]      netdev_get_by_index+0x5e/0x80
[ 3737.958664][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3737.958664][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3737.958664][   T73]      ip6_route_add+0x1c/0x140
[ 3737.958664][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3737.958664][   T73]      addrconf_add_dev+0xe2/0x170
[ 3737.958664][   T73]      inet6_addr_add+0x12f/0xa40
[ 3737.958664][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3737.958664][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3737.958664][   T73]      netlink_rcv_skb+0x130/0x360
[ 3737.958664][   T73]      netlink_unicast+0x449/0x710
[ 3737.958664][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3737.958664][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3737.958664][   T73]      ___sys_sendmsg+0xee/0x170
[ 3737.958664][   T73]      __sys_sendmsg+0xcd/0x170
[ 3737.958664][   T73]      do_syscall_64+0xc6/0x1e0
[ 3737.958664][   T73] 
[ 3737.960840][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3737.960840][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3737.960840][   T73]      ipv6_find_idev+0x102/0x170
[ 3737.960840][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3737.960840][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3737.960840][   T73]      netlink_rcv_skb+0x130/0x360
[ 3737.960840][   T73]      netlink_unicast+0x449/0x710
[ 3737.960840][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3737.960840][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3737.960840][   T73]      ___sys_sendmsg+0xee/0x170
[ 3737.960840][   T73]      __sys_sendmsg+0xcd/0x170
[ 3737.960840][   T73]      do_syscall_64+0xc6/0x1e0
[ 3737.960840][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3737.960840][   T73] 
[ 3737.962584][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3737.962584][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3737.962584][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3737.962584][   T73]      ipv6_find_idev+0x102/0x170
[ 3737.962584][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3737.962584][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3737.962584][   T73]      netlink_rcv_skb+0x130/0x360
[ 3737.962584][   T73]      netlink_unicast+0x449/0x710
[ 3737.962584][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3737.962584][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3737.962584][   T73]      ___sys_sendmsg+0xee/0x170
[ 3737.962584][   T73]      __sys_sendmsg+0xcd/0x170
[ 3737.962584][   T73]      do_syscall_64+0xc6/0x1e0
[ 3737.962584][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3737.962584][   T73] 
[ 3748.215757][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3748.216259][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3748.216259][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3748.216259][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3748.216259][   T73]      fib6_nh_init+0xa22/0x1580
[ 3748.216259][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3748.216259][   T73]      ip6_route_add+0x1c/0x140
[ 3748.216259][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3748.216259][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3748.216259][   T73]      netlink_rcv_skb+0x130/0x360
[ 3748.216259][   T73]      netlink_unicast+0x449/0x710
[ 3748.216259][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3748.216259][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3748.216259][   T73]      ___sys_sendmsg+0xee/0x170
[ 3748.216259][   T73]      __sys_sendmsg+0xcd/0x170
[ 3748.216259][   T73]      do_syscall_64+0xc6/0x1e0
[ 3748.216259][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3748.216259][   T73] 
[ 3748.218224][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3748.218224][   T73]      dst_init+0x84/0x4a0
[ 3748.218224][   T73]      dst_alloc+0x97/0x150
[ 3748.218224][   T73]      ip6_dst_alloc+0x23/0x90
[ 3748.218224][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3748.218224][   T73]      ip6_pol_route+0x56f/0x840
[ 3748.218224][   T73]      fib6_rule_lookup+0x456/0x630
[ 3748.218224][   T73]      ip6_route_input+0x59c/0xa50
[ 3748.218224][   T73]      ipv6_rcv+0x397/0x810
[ 3748.218224][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3748.218224][   T73]      process_backlog+0x101/0x620
[ 3748.218224][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3748.218224][   T73]      net_rx_action+0x495/0xbe0
[ 3748.218224][   T73]      __do_softirq+0x1b5/0x7f6
[ 3748.218224][   T73] 
[ 3748.219877][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3748.219877][   T73]      netdev_get_by_index+0x5e/0x80
[ 3748.219877][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3748.219877][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3748.219877][   T73]      ip6_route_add+0x1c/0x140
[ 3748.219877][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3748.219877][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3748.219877][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3748.219877][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3748.219877][   T73]      netlink_rcv_skb+0x130/0x360
[ 3748.219877][   T73]      netlink_unicast+0x449/0x710
[ 3748.219877][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3748.219877][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3748.219877][   T73]      ___sys_sendmsg+0xee/0x170
[ 3748.219877][   T73]      __sys_sendmsg+0xcd/0x170
[ 3748.219877][   T73]      do_syscall_64+0xc6/0x1e0
[ 3748.219877][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3748.219877][   T73] 
[ 3748.221893][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3748.221893][   T73]      netdev_get_by_index+0x5e/0x80
[ 3748.221893][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3748.221893][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3748.221893][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3748.221893][   T73]      ipv6_add_addr+0x411/0x2000
[ 3748.221893][   T73]      inet6_addr_add+0x30e/0xa40
[ 3748.221893][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3748.221893][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3748.221893][   T73]      netlink_rcv_skb+0x130/0x360
[ 3748.221893][   T73]      netlink_unicast+0x449/0x710
[ 3748.221893][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3748.221893][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3748.221893][   T73]      ___sys_sendmsg+0xee/0x170
[ 3748.221893][   T73]      __sys_sendmsg+0xcd/0x170
[ 3748.221893][   T73]      do_syscall_64+0xc6/0x1e0
[ 3748.221893][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3748.221893][   T73] 
[ 3748.223902][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3748.223902][   T73]      netdev_get_by_index+0x5e/0x80
[ 3748.223902][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3748.223902][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3748.223902][   T73]      ip6_route_add+0x1c/0x140
[ 3748.223902][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3748.223902][   T73]      addrconf_add_dev+0xe2/0x170
[ 3748.223902][   T73]      inet6_addr_add+0x12f/0xa40
[ 3748.223902][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3748.223902][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3748.223902][   T73]      netlink_rcv_skb+0x130/0x360
[ 3748.223902][   T73]      netlink_unicast+0x449/0x710
[ 3748.223902][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3748.223902][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3748.223902][   T73]      ___sys_sendmsg+0xee/0x170
[ 3748.223902][   T73]      __sys_sendmsg+0xcd/0x170
[ 3748.223902][   T73]      do_syscall_64+0xc6/0x1e0
[ 3748.223902][   T73] 
[ 3748.225893][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3748.225893][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3748.225893][   T73]      ipv6_find_idev+0x102/0x170
[ 3748.225893][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3748.225893][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3748.225893][   T73]      netlink_rcv_skb+0x130/0x360
[ 3748.225893][   T73]      netlink_unicast+0x449/0x710
[ 3748.225893][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3748.225893][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3748.225893][   T73]      ___sys_sendmsg+0xee/0x170
[ 3748.225893][   T73]      __sys_sendmsg+0xcd/0x170
[ 3748.225893][   T73]      do_syscall_64+0xc6/0x1e0
[ 3748.225893][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3748.225893][   T73] 
[ 3748.227452][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3748.227452][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3748.227452][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3748.227452][   T73]      ipv6_find_idev+0x102/0x170
[ 3748.227452][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3748.227452][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3748.227452][   T73]      netlink_rcv_skb+0x130/0x360
[ 3748.227452][   T73]      netlink_unicast+0x449/0x710
[ 3748.227452][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3748.227452][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3748.227452][   T73]      ___sys_sendmsg+0xee/0x170
[ 3748.227452][   T73]      __sys_sendmsg+0xcd/0x170
[ 3748.227452][   T73]      do_syscall_64+0xc6/0x1e0
[ 3748.227452][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3748.227452][   T73] 
[ 3748.229691][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3748.229975][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3748.229975][   T73]      netdev_get_by_index+0x5e/0x80
[ 3748.229975][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3748.229975][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3748.229975][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3748.229975][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3748.229975][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3748.229975][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3748.229975][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3748.229975][   T73]      addrconf_dad_begin+0x310/0x670
[ 3748.229975][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3748.229975][   T73]      process_one_work+0x84d/0x18a0
[ 3748.229975][   T73]      worker_thread+0x587/0xd30
[ 3748.229975][   T73]      kthread+0x28a/0x350
[ 3748.229975][   T73]      ret_from_fork+0x31/0x70
[ 3748.229975][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3748.229975][   T73] 
[ 3748.231897][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3748.231897][   T73]      netdev_get_by_index+0x5e/0x80
[ 3748.231897][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3748.231897][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3748.231897][   T73]      ip6_route_add+0x1c/0x140
[ 3748.231897][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3748.231897][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3748.231897][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3748.231897][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3748.231897][   T73]      netlink_rcv_skb+0x130/0x360
[ 3748.231897][   T73]      netlink_unicast+0x449/0x710
[ 3748.231897][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3748.231897][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3748.231897][   T73]      ___sys_sendmsg+0xee/0x170
[ 3748.231897][   T73]      __sys_sendmsg+0xcd/0x170
[ 3748.231897][   T73]      do_syscall_64+0xc6/0x1e0
[ 3748.231897][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3748.231897][   T73] 
[ 3748.233895][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3748.233895][   T73]      netdev_get_by_index+0x5e/0x80
[ 3748.233895][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3748.233895][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3748.233895][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3748.233895][   T73]      ipv6_add_addr+0x411/0x2000
[ 3748.233895][   T73]      inet6_addr_add+0x30e/0xa40
[ 3748.233895][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3748.233895][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3748.233895][   T73]      netlink_rcv_skb+0x130/0x360
[ 3748.233895][   T73]      netlink_unicast+0x449/0x710
[ 3748.233895][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3748.233895][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3748.233895][   T73]      ___sys_sendmsg+0xee/0x170
[ 3748.233895][   T73]      __sys_sendmsg+0xcd/0x170
[ 3748.233895][   T73]      do_syscall_64+0xc6/0x1e0
[ 3748.233895][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3748.233895][   T73] 
[ 3748.235907][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3748.235907][   T73]      netdev_get_by_index+0x5e/0x80
[ 3748.235907][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3748.235907][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3748.235907][   T73]      ip6_route_add+0x1c/0x140
[ 3748.235907][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3748.235907][   T73]      addrconf_add_dev+0xe2/0x170
[ 3748.235907][   T73]      inet6_addr_add+0x12f/0xa40
[ 3748.235907][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3748.235907][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3748.235907][   T73]      netlink_rcv_skb+0x130/0x360
[ 3748.235907][   T73]      netlink_unicast+0x449/0x710
[ 3748.235907][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3748.235907][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3748.235907][   T73]      ___sys_sendmsg+0xee/0x170
[ 3748.235907][   T73]      __sys_sendmsg+0xcd/0x170
[ 3748.235907][   T73]      do_syscall_64+0xc6/0x1e0
[ 3748.235907][   T73] 
[ 3748.237880][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3748.237880][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3748.237880][   T73]      ipv6_find_idev+0x102/0x170
[ 3748.237880][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3748.237880][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3748.237880][   T73]      netlink_rcv_skb+0x130/0x360
[ 3748.237880][   T73]      netlink_unicast+0x449/0x710
[ 3748.237880][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3748.237880][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3748.237880][   T73]      ___sys_sendmsg+0xee/0x170
[ 3748.237880][   T73]      __sys_sendmsg+0xcd/0x170
[ 3748.237880][   T73]      do_syscall_64+0xc6/0x1e0
[ 3748.237880][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3748.237880][   T73] 
[ 3748.239423][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3748.239423][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3748.239423][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3748.239423][   T73]      ipv6_find_idev+0x102/0x170
[ 3748.239423][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3748.239423][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3748.239423][   T73]      netlink_rcv_skb+0x130/0x360
[ 3748.239423][   T73]      netlink_unicast+0x449/0x710
[ 3748.239423][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3748.239423][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3748.239423][   T73]      ___sys_sendmsg+0xee/0x170
[ 3748.239423][   T73]      __sys_sendmsg+0xcd/0x170
[ 3748.239423][   T73]      do_syscall_64+0xc6/0x1e0
[ 3748.239423][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3748.239423][   T73] 
[ 3748.241113][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3748.241381][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3748.241381][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3748.241381][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3748.241381][   T73]      fib6_nh_init+0xa22/0x1580
[ 3748.241381][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3748.241381][   T73]      ip6_route_add+0x1c/0x140
[ 3748.241381][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3748.241381][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3748.241381][   T73]      netlink_rcv_skb+0x130/0x360
[ 3748.241381][   T73]      netlink_unicast+0x449/0x710
[ 3748.241381][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3748.241381][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3748.241381][   T73]      ___sys_sendmsg+0xee/0x170
[ 3748.241381][   T73]      __sys_sendmsg+0xcd/0x170
[ 3748.241381][   T73]      do_syscall_64+0xc6/0x1e0
[ 3748.241381][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3748.241381][   T73] 
[ 3748.243446][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3748.243446][   T73]      dst_init+0x84/0x4a0
[ 3748.243446][   T73]      dst_alloc+0x97/0x150
[ 3748.243446][   T73]      ip6_dst_alloc+0x23/0x90
[ 3748.243446][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3748.243446][   T73]      ip6_pol_route+0x56f/0x840
[ 3748.243446][   T73]      fib6_rule_lookup+0x456/0x630
[ 3748.243446][   T73]      ip6_route_input+0x59c/0xa50
[ 3748.243446][   T73]      ipv6_rcv+0x397/0x810
[ 3748.243446][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3748.243446][   T73]      process_backlog+0x101/0x620
[ 3748.243446][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3748.243446][   T73]      net_rx_action+0x495/0xbe0
[ 3748.243446][   T73]      __do_softirq+0x1b5/0x7f6
[ 3748.243446][   T73] 
[ 3748.245328][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3748.245328][   T73]      netdev_get_by_index+0x5e/0x80
[ 3748.245328][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3748.245328][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3748.245328][   T73]      ip6_route_add+0x1c/0x140
[ 3748.245328][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3748.245328][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3748.245328][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3748.245328][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3748.245328][   T73]      netlink_rcv_skb+0x130/0x360
[ 3748.245328][   T73]      netlink_unicast+0x449/0x710
[ 3748.245328][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3748.245328][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3748.245328][   T73]      ___sys_sendmsg+0xee/0x170
[ 3748.245328][   T73]      __sys_sendmsg+0xcd/0x170
[ 3748.245328][   T73]      do_syscall_64+0xc6/0x1e0
[ 3748.245328][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3748.245328][   T73] 
[ 3748.247581][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3748.247581][   T73]      netdev_get_by_index+0x5e/0x80
[ 3748.247581][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3748.247581][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3748.247581][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3748.247581][   T73]      ipv6_add_addr+0x411/0x2000
[ 3748.247581][   T73]      inet6_addr_add+0x30e/0xa40
[ 3748.247581][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3748.247581][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3748.247581][   T73]      netlink_rcv_skb+0x130/0x360
[ 3748.247581][   T73]      netlink_unicast+0x449/0x710
[ 3748.247581][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3748.247581][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3748.247581][   T73]      ___sys_sendmsg+0xee/0x170
[ 3748.247581][   T73]      __sys_sendmsg+0xcd/0x170
[ 3748.247581][   T73]      do_syscall_64+0xc6/0x1e0
[ 3748.247581][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3748.247581][   T73] 
[ 3748.249821][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3748.249821][   T73]      netdev_get_by_index+0x5e/0x80
[ 3748.249821][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3748.249821][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3748.249821][   T73]      ip6_route_add+0x1c/0x140
[ 3748.249821][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3748.249821][   T73]      addrconf_add_dev+0xe2/0x170
[ 3748.249821][   T73]      inet6_addr_add+0x12f/0xa40
[ 3748.249821][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3748.249821][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3748.249821][   T73]      netlink_rcv_skb+0x130/0x360
[ 3748.249821][   T73]      netlink_unicast+0x449/0x710
[ 3748.249821][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3748.249821][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3748.249821][   T73]      ___sys_sendmsg+0xee/0x170
[ 3748.249821][   T73]      __sys_sendmsg+0xcd/0x170
[ 3748.249821][   T73]      do_syscall_64+0xc6/0x1e0
[ 3748.249821][   T73] 
[ 3748.251969][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3748.251969][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3748.251969][   T73]      ipv6_find_idev+0x102/0x170
[ 3748.251969][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3748.251969][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3748.251969][   T73]      netlink_rcv_skb+0x130/0x360
[ 3748.251969][   T73]      netlink_unicast+0x449/0x710
[ 3748.251969][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3748.251969][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3748.251969][   T73]      ___sys_sendmsg+0xee/0x170
[ 3748.251969][   T73]      __sys_sendmsg+0xcd/0x170
[ 3748.251969][   T73]      do_syscall_64+0xc6/0x1e0
[ 3748.251969][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3748.251969][   T73] 
[ 3748.253753][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3748.253753][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3748.253753][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3748.253753][   T73]      ipv6_find_idev+0x102/0x170
[ 3748.253753][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3748.253753][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3748.253753][   T73]      netlink_rcv_skb+0x130/0x360
[ 3748.253753][   T73]      netlink_unicast+0x449/0x710
[ 3748.253753][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3748.253753][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3748.253753][   T73]      ___sys_sendmsg+0xee/0x170
[ 3748.253753][   T73]      __sys_sendmsg+0xcd/0x170
[ 3748.253753][   T73]      do_syscall_64+0xc6/0x1e0
[ 3748.253753][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3748.253753][   T73] 
[ 3748.255671][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3748.255947][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3748.255947][   T73]      netdev_get_by_index+0x5e/0x80
[ 3748.255947][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3748.255947][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3748.255947][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3748.255947][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3748.255947][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3748.255947][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3748.255947][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3748.255947][   T73]      addrconf_dad_begin+0x310/0x670
[ 3748.255947][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3748.255947][   T73]      process_one_work+0x84d/0x18a0
[ 3748.255947][   T73]      worker_thread+0x587/0xd30
[ 3748.255947][   T73]      kthread+0x28a/0x350
[ 3748.255947][   T73]      ret_from_fork+0x31/0x70
[ 3748.255947][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3748.255947][   T73] 
[ 3748.258094][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3748.258094][   T73]      netdev_get_by_index+0x5e/0x80
[ 3748.258094][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3748.258094][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3748.258094][   T73]      ip6_route_add+0x1c/0x140
[ 3748.258094][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3748.258094][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3748.258094][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3748.258094][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3748.258094][   T73]      netlink_rcv_skb+0x130/0x360
[ 3748.258094][   T73]      netlink_unicast+0x449/0x710
[ 3748.258094][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3748.258094][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3748.258094][   T73]      ___sys_sendmsg+0xee/0x170
[ 3748.258094][   T73]      __sys_sendmsg+0xcd/0x170
[ 3748.258094][   T73]      do_syscall_64+0xc6/0x1e0
[ 3748.258094][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3748.258094][   T73] 
[ 3748.260251][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3748.260251][   T73]      netdev_get_by_index+0x5e/0x80
[ 3748.260251][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3748.260251][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3748.260251][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3748.260251][   T73]      ipv6_add_addr+0x411/0x2000
[ 3748.260251][   T73]      inet6_addr_add+0x30e/0xa40
[ 3748.260251][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3748.260251][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3748.260251][   T73]      netlink_rcv_skb+0x130/0x360
[ 3748.260251][   T73]      netlink_unicast+0x449/0x710
[ 3748.260251][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3748.260251][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3748.260251][   T73]      ___sys_sendmsg+0xee/0x170
[ 3748.260251][   T73]      __sys_sendmsg+0xcd/0x170
[ 3748.260251][   T73]      do_syscall_64+0xc6/0x1e0
[ 3748.260251][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3748.260251][   T73] 
[ 3748.262469][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3748.262469][   T73]      netdev_get_by_index+0x5e/0x80
[ 3748.262469][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3748.262469][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3748.262469][   T73]      ip6_route_add+0x1c/0x140
[ 3748.262469][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3748.262469][   T73]      addrconf_add_dev+0xe2/0x170
[ 3748.262469][   T73]      inet6_addr_add+0x12f/0xa40
[ 3748.262469][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3748.262469][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3748.262469][   T73]      netlink_rcv_skb+0x130/0x360
[ 3748.262469][   T73]      netlink_unicast+0x449/0x710
[ 3748.262469][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3748.262469][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3748.262469][   T73]      ___sys_sendmsg+0xee/0x170
[ 3748.262469][   T73]      __sys_sendmsg+0xcd/0x170
[ 3748.262469][   T73]      do_syscall_64+0xc6/0x1e0
[ 3748.262469][   T73] 
[ 3748.264730][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3748.264730][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3748.264730][   T73]      ipv6_find_idev+0x102/0x170
[ 3748.264730][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3748.264730][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3748.264730][   T73]      netlink_rcv_skb+0x130/0x360
[ 3748.264730][   T73]      netlink_unicast+0x449/0x710
[ 3748.264730][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3748.264730][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3748.264730][   T73]      ___sys_sendmsg+0xee/0x170
[ 3748.264730][   T73]      __sys_sendmsg+0xcd/0x170
[ 3748.264730][   T73]      do_syscall_64+0xc6/0x1e0
[ 3748.264730][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3748.264730][   T73] 
[ 3748.266459][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3748.266459][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3748.266459][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3748.266459][   T73]      ipv6_find_idev+0x102/0x170
[ 3748.266459][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3748.266459][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3748.266459][   T73]      netlink_rcv_skb+0x130/0x360
[ 3748.266459][   T73]      netlink_unicast+0x449/0x710
[ 3748.266459][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3748.266459][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3748.266459][   T73]      ___sys_sendmsg+0xee/0x170
[ 3748.266459][   T73]      __sys_sendmsg+0xcd/0x170
[ 3748.266459][   T73]      do_syscall_64+0xc6/0x1e0
[ 3748.266459][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3748.266459][   T73] 
[ 3758.511794][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3758.512284][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3758.512284][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3758.512284][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3758.512284][   T73]      fib6_nh_init+0xa22/0x1580
[ 3758.512284][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3758.512284][   T73]      ip6_route_add+0x1c/0x140
[ 3758.512284][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3758.512284][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3758.512284][   T73]      netlink_rcv_skb+0x130/0x360
[ 3758.512284][   T73]      netlink_unicast+0x449/0x710
[ 3758.512284][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3758.512284][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3758.512284][   T73]      ___sys_sendmsg+0xee/0x170
[ 3758.512284][   T73]      __sys_sendmsg+0xcd/0x170
[ 3758.512284][   T73]      do_syscall_64+0xc6/0x1e0
[ 3758.512284][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3758.512284][   T73] 
[ 3758.514208][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3758.514208][   T73]      dst_init+0x84/0x4a0
[ 3758.514208][   T73]      dst_alloc+0x97/0x150
[ 3758.514208][   T73]      ip6_dst_alloc+0x23/0x90
[ 3758.514208][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3758.514208][   T73]      ip6_pol_route+0x56f/0x840
[ 3758.514208][   T73]      fib6_rule_lookup+0x456/0x630
[ 3758.514208][   T73]      ip6_route_input+0x59c/0xa50
[ 3758.514208][   T73]      ipv6_rcv+0x397/0x810
[ 3758.514208][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3758.514208][   T73]      process_backlog+0x101/0x620
[ 3758.514208][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3758.514208][   T73]      net_rx_action+0x495/0xbe0
[ 3758.514208][   T73]      __do_softirq+0x1b5/0x7f6
[ 3758.514208][   T73] 
[ 3758.515859][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3758.515859][   T73]      netdev_get_by_index+0x5e/0x80
[ 3758.515859][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3758.515859][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3758.515859][   T73]      ip6_route_add+0x1c/0x140
[ 3758.515859][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3758.515859][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3758.515859][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3758.515859][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3758.515859][   T73]      netlink_rcv_skb+0x130/0x360
[ 3758.515859][   T73]      netlink_unicast+0x449/0x710
[ 3758.515859][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3758.515859][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3758.515859][   T73]      ___sys_sendmsg+0xee/0x170
[ 3758.515859][   T73]      __sys_sendmsg+0xcd/0x170
[ 3758.515859][   T73]      do_syscall_64+0xc6/0x1e0
[ 3758.515859][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3758.515859][   T73] 
[ 3758.517968][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3758.517968][   T73]      netdev_get_by_index+0x5e/0x80
[ 3758.517968][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3758.517968][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3758.517968][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3758.517968][   T73]      ipv6_add_addr+0x411/0x2000
[ 3758.517968][   T73]      inet6_addr_add+0x30e/0xa40
[ 3758.517968][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3758.517968][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3758.517968][   T73]      netlink_rcv_skb+0x130/0x360
[ 3758.517968][   T73]      netlink_unicast+0x449/0x710
[ 3758.517968][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3758.517968][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3758.517968][   T73]      ___sys_sendmsg+0xee/0x170
[ 3758.517968][   T73]      __sys_sendmsg+0xcd/0x170
[ 3758.517968][   T73]      do_syscall_64+0xc6/0x1e0
[ 3758.517968][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3758.517968][   T73] 
[ 3758.520016][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3758.520016][   T73]      netdev_get_by_index+0x5e/0x80
[ 3758.520016][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3758.520016][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3758.520016][   T73]      ip6_route_add+0x1c/0x140
[ 3758.520016][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3758.520016][   T73]      addrconf_add_dev+0xe2/0x170
[ 3758.520016][   T73]      inet6_addr_add+0x12f/0xa40
[ 3758.520016][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3758.520016][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3758.520016][   T73]      netlink_rcv_skb+0x130/0x360
[ 3758.520016][   T73]      netlink_unicast+0x449/0x710
[ 3758.520016][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3758.520016][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3758.520016][   T73]      ___sys_sendmsg+0xee/0x170
[ 3758.520016][   T73]      __sys_sendmsg+0xcd/0x170
[ 3758.520016][   T73]      do_syscall_64+0xc6/0x1e0
[ 3758.520016][   T73] 
[ 3758.521979][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3758.521979][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3758.521979][   T73]      ipv6_find_idev+0x102/0x170
[ 3758.521979][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3758.521979][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3758.521979][   T73]      netlink_rcv_skb+0x130/0x360
[ 3758.521979][   T73]      netlink_unicast+0x449/0x710
[ 3758.521979][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3758.521979][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3758.521979][   T73]      ___sys_sendmsg+0xee/0x170
[ 3758.521979][   T73]      __sys_sendmsg+0xcd/0x170
[ 3758.521979][   T73]      do_syscall_64+0xc6/0x1e0
[ 3758.521979][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3758.521979][   T73] 
[ 3758.523519][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3758.523519][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3758.523519][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3758.523519][   T73]      ipv6_find_idev+0x102/0x170
[ 3758.523519][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3758.523519][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3758.523519][   T73]      netlink_rcv_skb+0x130/0x360
[ 3758.523519][   T73]      netlink_unicast+0x449/0x710
[ 3758.523519][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3758.523519][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3758.523519][   T73]      ___sys_sendmsg+0xee/0x170
[ 3758.523519][   T73]      __sys_sendmsg+0xcd/0x170
[ 3758.523519][   T73]      do_syscall_64+0xc6/0x1e0
[ 3758.523519][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3758.523519][   T73] 
[ 3758.525213][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3758.525512][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3758.525512][   T73]      netdev_get_by_index+0x5e/0x80
[ 3758.525512][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3758.525512][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3758.525512][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3758.525512][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3758.525512][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3758.525512][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3758.525512][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3758.525512][   T73]      addrconf_dad_begin+0x310/0x670
[ 3758.525512][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3758.525512][   T73]      process_one_work+0x84d/0x18a0
[ 3758.525512][   T73]      worker_thread+0x587/0xd30
[ 3758.525512][   T73]      kthread+0x28a/0x350
[ 3758.525512][   T73]      ret_from_fork+0x31/0x70
[ 3758.525512][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3758.525512][   T73] 
[ 3758.527425][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3758.527425][   T73]      netdev_get_by_index+0x5e/0x80
[ 3758.527425][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3758.527425][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3758.527425][   T73]      ip6_route_add+0x1c/0x140
[ 3758.527425][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3758.527425][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3758.527425][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3758.527425][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3758.527425][   T73]      netlink_rcv_skb+0x130/0x360
[ 3758.527425][   T73]      netlink_unicast+0x449/0x710
[ 3758.527425][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3758.527425][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3758.527425][   T73]      ___sys_sendmsg+0xee/0x170
[ 3758.527425][   T73]      __sys_sendmsg+0xcd/0x170
[ 3758.527425][   T73]      do_syscall_64+0xc6/0x1e0
[ 3758.527425][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3758.527425][   T73] 
[ 3758.529423][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3758.529423][   T73]      netdev_get_by_index+0x5e/0x80
[ 3758.529423][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3758.529423][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3758.529423][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3758.529423][   T73]      ipv6_add_addr+0x411/0x2000
[ 3758.529423][   T73]      inet6_addr_add+0x30e/0xa40
[ 3758.529423][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3758.529423][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3758.529423][   T73]      netlink_rcv_skb+0x130/0x360
[ 3758.529423][   T73]      netlink_unicast+0x449/0x710
[ 3758.529423][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3758.529423][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3758.529423][   T73]      ___sys_sendmsg+0xee/0x170
[ 3758.529423][   T73]      __sys_sendmsg+0xcd/0x170
[ 3758.529423][   T73]      do_syscall_64+0xc6/0x1e0
[ 3758.529423][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3758.529423][   T73] 
[ 3758.531408][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3758.531408][   T73]      netdev_get_by_index+0x5e/0x80
[ 3758.531408][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3758.531408][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3758.531408][   T73]      ip6_route_add+0x1c/0x140
[ 3758.531408][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3758.531408][   T73]      addrconf_add_dev+0xe2/0x170
[ 3758.531408][   T73]      inet6_addr_add+0x12f/0xa40
[ 3758.531408][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3758.531408][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3758.531408][   T73]      netlink_rcv_skb+0x130/0x360
[ 3758.531408][   T73]      netlink_unicast+0x449/0x710
[ 3758.531408][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3758.531408][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3758.531408][   T73]      ___sys_sendmsg+0xee/0x170
[ 3758.531408][   T73]      __sys_sendmsg+0xcd/0x170
[ 3758.531408][   T73]      do_syscall_64+0xc6/0x1e0
[ 3758.531408][   T73] 
[ 3758.533369][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3758.533369][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3758.533369][   T73]      ipv6_find_idev+0x102/0x170
[ 3758.533369][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3758.533369][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3758.533369][   T73]      netlink_rcv_skb+0x130/0x360
[ 3758.533369][   T73]      netlink_unicast+0x449/0x710
[ 3758.533369][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3758.533369][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3758.533369][   T73]      ___sys_sendmsg+0xee/0x170
[ 3758.533369][   T73]      __sys_sendmsg+0xcd/0x170
[ 3758.533369][   T73]      do_syscall_64+0xc6/0x1e0
[ 3758.533369][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3758.533369][   T73] 
[ 3758.534914][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3758.534914][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3758.534914][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3758.534914][   T73]      ipv6_find_idev+0x102/0x170
[ 3758.534914][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3758.534914][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3758.534914][   T73]      netlink_rcv_skb+0x130/0x360
[ 3758.534914][   T73]      netlink_unicast+0x449/0x710
[ 3758.534914][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3758.534914][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3758.534914][   T73]      ___sys_sendmsg+0xee/0x170
[ 3758.534914][   T73]      __sys_sendmsg+0xcd/0x170
[ 3758.534914][   T73]      do_syscall_64+0xc6/0x1e0
[ 3758.534914][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3758.534914][   T73] 
[ 3758.536578][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3758.536852][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3758.536852][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3758.536852][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3758.536852][   T73]      fib6_nh_init+0xa22/0x1580
[ 3758.536852][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3758.536852][   T73]      ip6_route_add+0x1c/0x140
[ 3758.536852][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3758.536852][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3758.536852][   T73]      netlink_rcv_skb+0x130/0x360
[ 3758.536852][   T73]      netlink_unicast+0x449/0x710
[ 3758.536852][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3758.536852][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3758.536852][   T73]      ___sys_sendmsg+0xee/0x170
[ 3758.536852][   T73]      __sys_sendmsg+0xcd/0x170
[ 3758.536852][   T73]      do_syscall_64+0xc6/0x1e0
[ 3758.536852][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3758.536852][   T73] 
[ 3758.538898][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3758.538898][   T73]      dst_init+0x84/0x4a0
[ 3758.538898][   T73]      dst_alloc+0x97/0x150
[ 3758.538898][   T73]      ip6_dst_alloc+0x23/0x90
[ 3758.538898][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3758.538898][   T73]      ip6_pol_route+0x56f/0x840
[ 3758.538898][   T73]      fib6_rule_lookup+0x456/0x630
[ 3758.538898][   T73]      ip6_route_input+0x59c/0xa50
[ 3758.538898][   T73]      ipv6_rcv+0x397/0x810
[ 3758.538898][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3758.538898][   T73]      process_backlog+0x101/0x620
[ 3758.538898][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3758.538898][   T73]      net_rx_action+0x495/0xbe0
[ 3758.538898][   T73]      __do_softirq+0x1b5/0x7f6
[ 3758.538898][   T73] 
[ 3758.540699][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3758.540699][   T73]      netdev_get_by_index+0x5e/0x80
[ 3758.540699][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3758.540699][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3758.540699][   T73]      ip6_route_add+0x1c/0x140
[ 3758.540699][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3758.540699][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3758.540699][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3758.540699][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3758.540699][   T73]      netlink_rcv_skb+0x130/0x360
[ 3758.540699][   T73]      netlink_unicast+0x449/0x710
[ 3758.540699][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3758.540699][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3758.540699][   T73]      ___sys_sendmsg+0xee/0x170
[ 3758.540699][   T73]      __sys_sendmsg+0xcd/0x170
[ 3758.540699][   T73]      do_syscall_64+0xc6/0x1e0
[ 3758.540699][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3758.540699][   T73] 
[ 3758.542917][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3758.542917][   T73]      netdev_get_by_index+0x5e/0x80
[ 3758.542917][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3758.542917][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3758.542917][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3758.542917][   T73]      ipv6_add_addr+0x411/0x2000
[ 3758.542917][   T73]      inet6_addr_add+0x30e/0xa40
[ 3758.542917][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3758.542917][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3758.542917][   T73]      netlink_rcv_skb+0x130/0x360
[ 3758.542917][   T73]      netlink_unicast+0x449/0x710
[ 3758.542917][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3758.542917][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3758.542917][   T73]      ___sys_sendmsg+0xee/0x170
[ 3758.542917][   T73]      __sys_sendmsg+0xcd/0x170
[ 3758.542917][   T73]      do_syscall_64+0xc6/0x1e0
[ 3758.542917][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3758.542917][   T73] 
[ 3758.545215][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3758.545215][   T73]      netdev_get_by_index+0x5e/0x80
[ 3758.545215][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3758.545215][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3758.545215][   T73]      ip6_route_add+0x1c/0x140
[ 3758.545215][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3758.545215][   T73]      addrconf_add_dev+0xe2/0x170
[ 3758.545215][   T73]      inet6_addr_add+0x12f/0xa40
[ 3758.545215][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3758.545215][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3758.545215][   T73]      netlink_rcv_skb+0x130/0x360
[ 3758.545215][   T73]      netlink_unicast+0x449/0x710
[ 3758.545215][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3758.545215][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3758.545215][   T73]      ___sys_sendmsg+0xee/0x170
[ 3758.545215][   T73]      __sys_sendmsg+0xcd/0x170
[ 3758.545215][   T73]      do_syscall_64+0xc6/0x1e0
[ 3758.545215][   T73] 
[ 3758.547349][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3758.547349][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3758.547349][   T73]      ipv6_find_idev+0x102/0x170
[ 3758.547349][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3758.547349][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3758.547349][   T73]      netlink_rcv_skb+0x130/0x360
[ 3758.547349][   T73]      netlink_unicast+0x449/0x710
[ 3758.547349][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3758.547349][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3758.547349][   T73]      ___sys_sendmsg+0xee/0x170
[ 3758.547349][   T73]      __sys_sendmsg+0xcd/0x170
[ 3758.547349][   T73]      do_syscall_64+0xc6/0x1e0
[ 3758.547349][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3758.547349][   T73] 
[ 3758.549069][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3758.549069][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3758.549069][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3758.549069][   T73]      ipv6_find_idev+0x102/0x170
[ 3758.549069][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3758.549069][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3758.549069][   T73]      netlink_rcv_skb+0x130/0x360
[ 3758.549069][   T73]      netlink_unicast+0x449/0x710
[ 3758.549069][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3758.549069][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3758.549069][   T73]      ___sys_sendmsg+0xee/0x170
[ 3758.549069][   T73]      __sys_sendmsg+0xcd/0x170
[ 3758.549069][   T73]      do_syscall_64+0xc6/0x1e0
[ 3758.549069][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3758.549069][   T73] 
[ 3758.550985][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3758.551258][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3758.551258][   T73]      netdev_get_by_index+0x5e/0x80
[ 3758.551258][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3758.551258][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3758.551258][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3758.551258][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3758.551258][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3758.551258][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3758.551258][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3758.551258][   T73]      addrconf_dad_begin+0x310/0x670
[ 3758.551258][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3758.551258][   T73]      process_one_work+0x84d/0x18a0
[ 3758.551258][   T73]      worker_thread+0x587/0xd30
[ 3758.551258][   T73]      kthread+0x28a/0x350
[ 3758.551258][   T73]      ret_from_fork+0x31/0x70
[ 3758.551258][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3758.551258][   T73] 
[ 3758.553395][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3758.553395][   T73]      netdev_get_by_index+0x5e/0x80
[ 3758.553395][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3758.553395][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3758.553395][   T73]      ip6_route_add+0x1c/0x140
[ 3758.553395][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3758.553395][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3758.553395][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3758.553395][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3758.553395][   T73]      netlink_rcv_skb+0x130/0x360
[ 3758.553395][   T73]      netlink_unicast+0x449/0x710
[ 3758.553395][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3758.553395][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3758.553395][   T73]      ___sys_sendmsg+0xee/0x170
[ 3758.553395][   T73]      __sys_sendmsg+0xcd/0x170
[ 3758.553395][   T73]      do_syscall_64+0xc6/0x1e0
[ 3758.553395][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3758.553395][   T73] 
[ 3758.555613][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3758.555613][   T73]      netdev_get_by_index+0x5e/0x80
[ 3758.555613][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3758.555613][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3758.555613][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3758.555613][   T73]      ipv6_add_addr+0x411/0x2000
[ 3758.555613][   T73]      inet6_addr_add+0x30e/0xa40
[ 3758.555613][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3758.555613][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3758.555613][   T73]      netlink_rcv_skb+0x130/0x360
[ 3758.555613][   T73]      netlink_unicast+0x449/0x710
[ 3758.555613][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3758.555613][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3758.555613][   T73]      ___sys_sendmsg+0xee/0x170
[ 3758.555613][   T73]      __sys_sendmsg+0xcd/0x170
[ 3758.555613][   T73]      do_syscall_64+0xc6/0x1e0
[ 3758.555613][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3758.555613][   T73] 
[ 3758.557845][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3758.557845][   T73]      netdev_get_by_index+0x5e/0x80
[ 3758.557845][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3758.557845][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3758.557845][   T73]      ip6_route_add+0x1c/0x140
[ 3758.557845][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3758.557845][   T73]      addrconf_add_dev+0xe2/0x170
[ 3758.557845][   T73]      inet6_addr_add+0x12f/0xa40
[ 3758.557845][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3758.557845][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3758.557845][   T73]      netlink_rcv_skb+0x130/0x360
[ 3758.557845][   T73]      netlink_unicast+0x449/0x710
[ 3758.557845][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3758.557845][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3758.557845][   T73]      ___sys_sendmsg+0xee/0x170
[ 3758.557845][   T73]      __sys_sendmsg+0xcd/0x170
[ 3758.557845][   T73]      do_syscall_64+0xc6/0x1e0
[ 3758.557845][   T73] 
[ 3758.560046][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3758.560046][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3758.560046][   T73]      ipv6_find_idev+0x102/0x170
[ 3758.560046][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3758.560046][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3758.560046][   T73]      netlink_rcv_skb+0x130/0x360
[ 3758.560046][   T73]      netlink_unicast+0x449/0x710
[ 3758.560046][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3758.560046][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3758.560046][   T73]      ___sys_sendmsg+0xee/0x170
[ 3758.560046][   T73]      __sys_sendmsg+0xcd/0x170
[ 3758.560046][   T73]      do_syscall_64+0xc6/0x1e0
[ 3758.560046][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3758.560046][   T73] 
[ 3758.561769][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3758.561769][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3758.561769][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3758.561769][   T73]      ipv6_find_idev+0x102/0x170
[ 3758.561769][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3758.561769][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3758.561769][   T73]      netlink_rcv_skb+0x130/0x360
[ 3758.561769][   T73]      netlink_unicast+0x449/0x710
[ 3758.561769][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3758.561769][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3758.561769][   T73]      ___sys_sendmsg+0xee/0x170
[ 3758.561769][   T73]      __sys_sendmsg+0xcd/0x170
[ 3758.561769][   T73]      do_syscall_64+0xc6/0x1e0
[ 3758.561769][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3758.561769][   T73] 
[ 3768.799829][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3768.800335][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3768.800335][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3768.800335][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3768.800335][   T73]      fib6_nh_init+0xa22/0x1580
[ 3768.800335][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3768.800335][   T73]      ip6_route_add+0x1c/0x140
[ 3768.800335][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3768.800335][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3768.800335][   T73]      netlink_rcv_skb+0x130/0x360
[ 3768.800335][   T73]      netlink_unicast+0x449/0x710
[ 3768.800335][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3768.800335][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3768.800335][   T73]      ___sys_sendmsg+0xee/0x170
[ 3768.800335][   T73]      __sys_sendmsg+0xcd/0x170
[ 3768.800335][   T73]      do_syscall_64+0xc6/0x1e0
[ 3768.800335][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3768.800335][   T73] 
[ 3768.802220][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3768.802220][   T73]      dst_init+0x84/0x4a0
[ 3768.802220][   T73]      dst_alloc+0x97/0x150
[ 3768.802220][   T73]      ip6_dst_alloc+0x23/0x90
[ 3768.802220][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3768.802220][   T73]      ip6_pol_route+0x56f/0x840
[ 3768.802220][   T73]      fib6_rule_lookup+0x456/0x630
[ 3768.802220][   T73]      ip6_route_input+0x59c/0xa50
[ 3768.802220][   T73]      ipv6_rcv+0x397/0x810
[ 3768.802220][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3768.802220][   T73]      process_backlog+0x101/0x620
[ 3768.802220][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3768.802220][   T73]      net_rx_action+0x495/0xbe0
[ 3768.802220][   T73]      __do_softirq+0x1b5/0x7f6
[ 3768.802220][   T73] 
[ 3768.803860][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3768.803860][   T73]      netdev_get_by_index+0x5e/0x80
[ 3768.803860][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3768.803860][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3768.803860][   T73]      ip6_route_add+0x1c/0x140
[ 3768.803860][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3768.803860][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3768.803860][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3768.803860][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3768.803860][   T73]      netlink_rcv_skb+0x130/0x360
[ 3768.803860][   T73]      netlink_unicast+0x449/0x710
[ 3768.803860][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3768.803860][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3768.803860][   T73]      ___sys_sendmsg+0xee/0x170
[ 3768.803860][   T73]      __sys_sendmsg+0xcd/0x170
[ 3768.803860][   T73]      do_syscall_64+0xc6/0x1e0
[ 3768.803860][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3768.803860][   T73] 
[ 3768.805891][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3768.805891][   T73]      netdev_get_by_index+0x5e/0x80
[ 3768.805891][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3768.805891][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3768.805891][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3768.805891][   T73]      ipv6_add_addr+0x411/0x2000
[ 3768.805891][   T73]      inet6_addr_add+0x30e/0xa40
[ 3768.805891][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3768.805891][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3768.805891][   T73]      netlink_rcv_skb+0x130/0x360
[ 3768.805891][   T73]      netlink_unicast+0x449/0x710
[ 3768.805891][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3768.805891][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3768.805891][   T73]      ___sys_sendmsg+0xee/0x170
[ 3768.805891][   T73]      __sys_sendmsg+0xcd/0x170
[ 3768.805891][   T73]      do_syscall_64+0xc6/0x1e0
[ 3768.805891][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3768.805891][   T73] 
[ 3768.807897][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3768.807897][   T73]      netdev_get_by_index+0x5e/0x80
[ 3768.807897][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3768.807897][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3768.807897][   T73]      ip6_route_add+0x1c/0x140
[ 3768.807897][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3768.807897][   T73]      addrconf_add_dev+0xe2/0x170
[ 3768.807897][   T73]      inet6_addr_add+0x12f/0xa40
[ 3768.807897][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3768.807897][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3768.807897][   T73]      netlink_rcv_skb+0x130/0x360
[ 3768.807897][   T73]      netlink_unicast+0x449/0x710
[ 3768.807897][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3768.807897][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3768.807897][   T73]      ___sys_sendmsg+0xee/0x170
[ 3768.807897][   T73]      __sys_sendmsg+0xcd/0x170
[ 3768.807897][   T73]      do_syscall_64+0xc6/0x1e0
[ 3768.807897][   T73] 
[ 3768.809853][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3768.809853][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3768.809853][   T73]      ipv6_find_idev+0x102/0x170
[ 3768.809853][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3768.809853][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3768.809853][   T73]      netlink_rcv_skb+0x130/0x360
[ 3768.809853][   T73]      netlink_unicast+0x449/0x710
[ 3768.809853][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3768.809853][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3768.809853][   T73]      ___sys_sendmsg+0xee/0x170
[ 3768.809853][   T73]      __sys_sendmsg+0xcd/0x170
[ 3768.809853][   T73]      do_syscall_64+0xc6/0x1e0
[ 3768.809853][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3768.809853][   T73] 
[ 3768.811395][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3768.811395][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3768.811395][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3768.811395][   T73]      ipv6_find_idev+0x102/0x170
[ 3768.811395][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3768.811395][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3768.811395][   T73]      netlink_rcv_skb+0x130/0x360
[ 3768.811395][   T73]      netlink_unicast+0x449/0x710
[ 3768.811395][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3768.811395][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3768.811395][   T73]      ___sys_sendmsg+0xee/0x170
[ 3768.811395][   T73]      __sys_sendmsg+0xcd/0x170
[ 3768.811395][   T73]      do_syscall_64+0xc6/0x1e0
[ 3768.811395][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3768.811395][   T73] 
[ 3768.813082][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3768.813360][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3768.813360][   T73]      netdev_get_by_index+0x5e/0x80
[ 3768.813360][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3768.813360][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3768.813360][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3768.813360][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3768.813360][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3768.813360][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3768.813360][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3768.813360][   T73]      addrconf_dad_begin+0x310/0x670
[ 3768.813360][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3768.813360][   T73]      process_one_work+0x84d/0x18a0
[ 3768.813360][   T73]      worker_thread+0x587/0xd30
[ 3768.813360][   T73]      kthread+0x28a/0x350
[ 3768.813360][   T73]      ret_from_fork+0x31/0x70
[ 3768.813360][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3768.813360][   T73] 
[ 3768.815268][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3768.815268][   T73]      netdev_get_by_index+0x5e/0x80
[ 3768.815268][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3768.815268][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3768.815268][   T73]      ip6_route_add+0x1c/0x140
[ 3768.815268][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3768.815268][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3768.815268][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3768.815268][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3768.815268][   T73]      netlink_rcv_skb+0x130/0x360
[ 3768.815268][   T73]      netlink_unicast+0x449/0x710
[ 3768.815268][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3768.815268][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3768.815268][   T73]      ___sys_sendmsg+0xee/0x170
[ 3768.815268][   T73]      __sys_sendmsg+0xcd/0x170
[ 3768.815268][   T73]      do_syscall_64+0xc6/0x1e0
[ 3768.815268][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3768.815268][   T73] 
[ 3768.817263][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3768.817263][   T73]      netdev_get_by_index+0x5e/0x80
[ 3768.817263][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3768.817263][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3768.817263][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3768.817263][   T73]      ipv6_add_addr+0x411/0x2000
[ 3768.817263][   T73]      inet6_addr_add+0x30e/0xa40
[ 3768.817263][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3768.817263][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3768.817263][   T73]      netlink_rcv_skb+0x130/0x360
[ 3768.817263][   T73]      netlink_unicast+0x449/0x710
[ 3768.817263][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3768.817263][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3768.817263][   T73]      ___sys_sendmsg+0xee/0x170
[ 3768.817263][   T73]      __sys_sendmsg+0xcd/0x170
[ 3768.817263][   T73]      do_syscall_64+0xc6/0x1e0
[ 3768.817263][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3768.817263][   T73] 
[ 3768.819252][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3768.819252][   T73]      netdev_get_by_index+0x5e/0x80
[ 3768.819252][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3768.819252][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3768.819252][   T73]      ip6_route_add+0x1c/0x140
[ 3768.819252][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3768.819252][   T73]      addrconf_add_dev+0xe2/0x170
[ 3768.819252][   T73]      inet6_addr_add+0x12f/0xa40
[ 3768.819252][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3768.819252][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3768.819252][   T73]      netlink_rcv_skb+0x130/0x360
[ 3768.819252][   T73]      netlink_unicast+0x449/0x710
[ 3768.819252][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3768.819252][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3768.819252][   T73]      ___sys_sendmsg+0xee/0x170
[ 3768.819252][   T73]      __sys_sendmsg+0xcd/0x170
[ 3768.819252][   T73]      do_syscall_64+0xc6/0x1e0
[ 3768.819252][   T73] 
[ 3768.821197][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3768.821197][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3768.821197][   T73]      ipv6_find_idev+0x102/0x170
[ 3768.821197][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3768.821197][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3768.821197][   T73]      netlink_rcv_skb+0x130/0x360
[ 3768.821197][   T73]      netlink_unicast+0x449/0x710
[ 3768.821197][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3768.821197][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3768.821197][   T73]      ___sys_sendmsg+0xee/0x170
[ 3768.821197][   T73]      __sys_sendmsg+0xcd/0x170
[ 3768.821197][   T73]      do_syscall_64+0xc6/0x1e0
[ 3768.821197][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3768.821197][   T73] 
[ 3768.822720][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3768.822720][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3768.822720][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3768.822720][   T73]      ipv6_find_idev+0x102/0x170
[ 3768.822720][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3768.822720][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3768.822720][   T73]      netlink_rcv_skb+0x130/0x360
[ 3768.822720][   T73]      netlink_unicast+0x449/0x710
[ 3768.822720][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3768.822720][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3768.822720][   T73]      ___sys_sendmsg+0xee/0x170
[ 3768.822720][   T73]      __sys_sendmsg+0xcd/0x170
[ 3768.822720][   T73]      do_syscall_64+0xc6/0x1e0
[ 3768.822720][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3768.822720][   T73] 
[ 3768.824400][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3768.824663][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3768.824663][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3768.824663][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3768.824663][   T73]      fib6_nh_init+0xa22/0x1580
[ 3768.824663][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3768.824663][   T73]      ip6_route_add+0x1c/0x140
[ 3768.824663][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3768.824663][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3768.824663][   T73]      netlink_rcv_skb+0x130/0x360
[ 3768.824663][   T73]      netlink_unicast+0x449/0x710
[ 3768.824663][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3768.824663][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3768.824663][   T73]      ___sys_sendmsg+0xee/0x170
[ 3768.824663][   T73]      __sys_sendmsg+0xcd/0x170
[ 3768.824663][   T73]      do_syscall_64+0xc6/0x1e0
[ 3768.824663][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3768.824663][   T73] 
[ 3768.826714][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3768.826714][   T73]      dst_init+0x84/0x4a0
[ 3768.826714][   T73]      dst_alloc+0x97/0x150
[ 3768.826714][   T73]      ip6_dst_alloc+0x23/0x90
[ 3768.826714][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3768.826714][   T73]      ip6_pol_route+0x56f/0x840
[ 3768.826714][   T73]      fib6_rule_lookup+0x456/0x630
[ 3768.826714][   T73]      ip6_route_input+0x59c/0xa50
[ 3768.826714][   T73]      ipv6_rcv+0x397/0x810
[ 3768.826714][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3768.826714][   T73]      process_backlog+0x101/0x620
[ 3768.826714][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3768.826714][   T73]      net_rx_action+0x495/0xbe0
[ 3768.826714][   T73]      __do_softirq+0x1b5/0x7f6
[ 3768.826714][   T73] 
[ 3768.828593][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3768.828593][   T73]      netdev_get_by_index+0x5e/0x80
[ 3768.828593][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3768.828593][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3768.828593][   T73]      ip6_route_add+0x1c/0x140
[ 3768.828593][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3768.828593][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3768.828593][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3768.828593][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3768.828593][   T73]      netlink_rcv_skb+0x130/0x360
[ 3768.828593][   T73]      netlink_unicast+0x449/0x710
[ 3768.828593][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3768.828593][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3768.828593][   T73]      ___sys_sendmsg+0xee/0x170
[ 3768.828593][   T73]      __sys_sendmsg+0xcd/0x170
[ 3768.828593][   T73]      do_syscall_64+0xc6/0x1e0
[ 3768.828593][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3768.828593][   T73] 
[ 3768.830816][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3768.830816][   T73]      netdev_get_by_index+0x5e/0x80
[ 3768.830816][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3768.830816][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3768.830816][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3768.830816][   T73]      ipv6_add_addr+0x411/0x2000
[ 3768.830816][   T73]      inet6_addr_add+0x30e/0xa40
[ 3768.830816][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3768.830816][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3768.830816][   T73]      netlink_rcv_skb+0x130/0x360
[ 3768.830816][   T73]      netlink_unicast+0x449/0x710
[ 3768.830816][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3768.830816][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3768.830816][   T73]      ___sys_sendmsg+0xee/0x170
[ 3768.830816][   T73]      __sys_sendmsg+0xcd/0x170
[ 3768.830816][   T73]      do_syscall_64+0xc6/0x1e0
[ 3768.830816][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3768.830816][   T73] 
[ 3768.833041][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3768.833041][   T73]      netdev_get_by_index+0x5e/0x80
[ 3768.833041][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3768.833041][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3768.833041][   T73]      ip6_route_add+0x1c/0x140
[ 3768.833041][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3768.833041][   T73]      addrconf_add_dev+0xe2/0x170
[ 3768.833041][   T73]      inet6_addr_add+0x12f/0xa40
[ 3768.833041][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3768.833041][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3768.833041][   T73]      netlink_rcv_skb+0x130/0x360
[ 3768.833041][   T73]      netlink_unicast+0x449/0x710
[ 3768.833041][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3768.833041][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3768.833041][   T73]      ___sys_sendmsg+0xee/0x170
[ 3768.833041][   T73]      __sys_sendmsg+0xcd/0x170
[ 3768.833041][   T73]      do_syscall_64+0xc6/0x1e0
[ 3768.833041][   T73] 
[ 3768.835379][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3768.835379][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3768.835379][   T73]      ipv6_find_idev+0x102/0x170
[ 3768.835379][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3768.835379][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3768.835379][   T73]      netlink_rcv_skb+0x130/0x360
[ 3768.835379][   T73]      netlink_unicast+0x449/0x710
[ 3768.835379][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3768.835379][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3768.835379][   T73]      ___sys_sendmsg+0xee/0x170
[ 3768.835379][   T73]      __sys_sendmsg+0xcd/0x170
[ 3768.835379][   T73]      do_syscall_64+0xc6/0x1e0
[ 3768.835379][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3768.835379][   T73] 
[ 3768.837105][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3768.837105][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3768.837105][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3768.837105][   T73]      ipv6_find_idev+0x102/0x170
[ 3768.837105][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3768.837105][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3768.837105][   T73]      netlink_rcv_skb+0x130/0x360
[ 3768.837105][   T73]      netlink_unicast+0x449/0x710
[ 3768.837105][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3768.837105][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3768.837105][   T73]      ___sys_sendmsg+0xee/0x170
[ 3768.837105][   T73]      __sys_sendmsg+0xcd/0x170
[ 3768.837105][   T73]      do_syscall_64+0xc6/0x1e0
[ 3768.837105][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3768.837105][   T73] 
[ 3768.839022][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3768.839293][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3768.839293][   T73]      netdev_get_by_index+0x5e/0x80
[ 3768.839293][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3768.839293][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3768.839293][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3768.839293][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3768.839293][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3768.839293][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3768.839293][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3768.839293][   T73]      addrconf_dad_begin+0x310/0x670
[ 3768.839293][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3768.839293][   T73]      process_one_work+0x84d/0x18a0
[ 3768.839293][   T73]      worker_thread+0x587/0xd30
[ 3768.839293][   T73]      kthread+0x28a/0x350
[ 3768.839293][   T73]      ret_from_fork+0x31/0x70
[ 3768.839293][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3768.839293][   T73] 
[ 3768.841464][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3768.841464][   T73]      netdev_get_by_index+0x5e/0x80
[ 3768.841464][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3768.841464][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3768.841464][   T73]      ip6_route_add+0x1c/0x140
[ 3768.841464][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3768.841464][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3768.841464][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3768.841464][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3768.841464][   T73]      netlink_rcv_skb+0x130/0x360
[ 3768.841464][   T73]      netlink_unicast+0x449/0x710
[ 3768.841464][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3768.841464][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3768.841464][   T73]      ___sys_sendmsg+0xee/0x170
[ 3768.841464][   T73]      __sys_sendmsg+0xcd/0x170
[ 3768.841464][   T73]      do_syscall_64+0xc6/0x1e0
[ 3768.841464][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3768.841464][   T73] 
[ 3768.843683][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3768.843683][   T73]      netdev_get_by_index+0x5e/0x80
[ 3768.843683][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3768.843683][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3768.843683][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3768.843683][   T73]      ipv6_add_addr+0x411/0x2000
[ 3768.843683][   T73]      inet6_addr_add+0x30e/0xa40
[ 3768.843683][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3768.843683][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3768.843683][   T73]      netlink_rcv_skb+0x130/0x360
[ 3768.843683][   T73]      netlink_unicast+0x449/0x710
[ 3768.843683][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3768.843683][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3768.843683][   T73]      ___sys_sendmsg+0xee/0x170
[ 3768.843683][   T73]      __sys_sendmsg+0xcd/0x170
[ 3768.843683][   T73]      do_syscall_64+0xc6/0x1e0
[ 3768.843683][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3768.843683][   T73] 
[ 3768.845848][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3768.845848][   T73]      netdev_get_by_index+0x5e/0x80
[ 3768.845848][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3768.845848][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3768.845848][   T73]      ip6_route_add+0x1c/0x140
[ 3768.845848][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3768.845848][   T73]      addrconf_add_dev+0xe2/0x170
[ 3768.845848][   T73]      inet6_addr_add+0x12f/0xa40
[ 3768.845848][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3768.845848][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3768.845848][   T73]      netlink_rcv_skb+0x130/0x360
[ 3768.845848][   T73]      netlink_unicast+0x449/0x710
[ 3768.845848][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3768.845848][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3768.845848][   T73]      ___sys_sendmsg+0xee/0x170
[ 3768.845848][   T73]      __sys_sendmsg+0xcd/0x170
[ 3768.845848][   T73]      do_syscall_64+0xc6/0x1e0
[ 3768.845848][   T73] 
[ 3768.848112][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3768.848112][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3768.848112][   T73]      ipv6_find_idev+0x102/0x170
[ 3768.848112][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3768.848112][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3768.848112][   T73]      netlink_rcv_skb+0x130/0x360
[ 3768.848112][   T73]      netlink_unicast+0x449/0x710
[ 3768.848112][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3768.848112][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3768.848112][   T73]      ___sys_sendmsg+0xee/0x170
[ 3768.848112][   T73]      __sys_sendmsg+0xcd/0x170
[ 3768.848112][   T73]      do_syscall_64+0xc6/0x1e0
[ 3768.848112][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3768.848112][   T73] 
[ 3768.849840][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3768.849840][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3768.849840][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3768.849840][   T73]      ipv6_find_idev+0x102/0x170
[ 3768.849840][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3768.849840][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3768.849840][   T73]      netlink_rcv_skb+0x130/0x360
[ 3768.849840][   T73]      netlink_unicast+0x449/0x710
[ 3768.849840][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3768.849840][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3768.849840][   T73]      ___sys_sendmsg+0xee/0x170
[ 3768.849840][   T73]      __sys_sendmsg+0xcd/0x170
[ 3768.849840][   T73]      do_syscall_64+0xc6/0x1e0
[ 3768.849840][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3768.849840][   T73] 
[ 3779.087816][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3779.088264][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3779.088264][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3779.088264][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3779.088264][   T73]      fib6_nh_init+0xa22/0x1580
[ 3779.088264][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3779.088264][   T73]      ip6_route_add+0x1c/0x140
[ 3779.088264][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3779.088264][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3779.088264][   T73]      netlink_rcv_skb+0x130/0x360
[ 3779.088264][   T73]      netlink_unicast+0x449/0x710
[ 3779.088264][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3779.088264][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3779.088264][   T73]      ___sys_sendmsg+0xee/0x170
[ 3779.088264][   T73]      __sys_sendmsg+0xcd/0x170
[ 3779.088264][   T73]      do_syscall_64+0xc6/0x1e0
[ 3779.088264][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3779.088264][   T73] 
[ 3779.090381][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3779.090381][   T73]      dst_init+0x84/0x4a0
[ 3779.090381][   T73]      dst_alloc+0x97/0x150
[ 3779.090381][   T73]      ip6_dst_alloc+0x23/0x90
[ 3779.090381][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3779.090381][   T73]      ip6_pol_route+0x56f/0x840
[ 3779.090381][   T73]      fib6_rule_lookup+0x456/0x630
[ 3779.090381][   T73]      ip6_route_input+0x59c/0xa50
[ 3779.090381][   T73]      ipv6_rcv+0x397/0x810
[ 3779.090381][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3779.090381][   T73]      process_backlog+0x101/0x620
[ 3779.090381][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3779.090381][   T73]      net_rx_action+0x495/0xbe0
[ 3779.090381][   T73]      __do_softirq+0x1b5/0x7f6
[ 3779.090381][   T73] 
[ 3779.092224][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3779.092224][   T73]      netdev_get_by_index+0x5e/0x80
[ 3779.092224][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3779.092224][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3779.092224][   T73]      ip6_route_add+0x1c/0x140
[ 3779.092224][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3779.092224][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3779.092224][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3779.092224][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3779.092224][   T73]      netlink_rcv_skb+0x130/0x360
[ 3779.092224][   T73]      netlink_unicast+0x449/0x710
[ 3779.092224][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3779.092224][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3779.092224][   T73]      ___sys_sendmsg+0xee/0x170
[ 3779.092224][   T73]      __sys_sendmsg+0xcd/0x170
[ 3779.092224][   T73]      do_syscall_64+0xc6/0x1e0
[ 3779.092224][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3779.092224][   T73] 
[ 3779.094459][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3779.094459][   T73]      netdev_get_by_index+0x5e/0x80
[ 3779.094459][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3779.094459][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3779.094459][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3779.094459][   T73]      ipv6_add_addr+0x411/0x2000
[ 3779.094459][   T73]      inet6_addr_add+0x30e/0xa40
[ 3779.094459][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3779.094459][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3779.094459][   T73]      netlink_rcv_skb+0x130/0x360
[ 3779.094459][   T73]      netlink_unicast+0x449/0x710
[ 3779.094459][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3779.094459][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3779.094459][   T73]      ___sys_sendmsg+0xee/0x170
[ 3779.094459][   T73]      __sys_sendmsg+0xcd/0x170
[ 3779.094459][   T73]      do_syscall_64+0xc6/0x1e0
[ 3779.094459][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3779.094459][   T73] 
[ 3779.096690][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3779.096690][   T73]      netdev_get_by_index+0x5e/0x80
[ 3779.096690][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3779.096690][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3779.096690][   T73]      ip6_route_add+0x1c/0x140
[ 3779.096690][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3779.096690][   T73]      addrconf_add_dev+0xe2/0x170
[ 3779.096690][   T73]      inet6_addr_add+0x12f/0xa40
[ 3779.096690][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3779.096690][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3779.096690][   T73]      netlink_rcv_skb+0x130/0x360
[ 3779.096690][   T73]      netlink_unicast+0x449/0x710
[ 3779.096690][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3779.096690][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3779.096690][   T73]      ___sys_sendmsg+0xee/0x170
[ 3779.096690][   T73]      __sys_sendmsg+0xcd/0x170
[ 3779.096690][   T73]      do_syscall_64+0xc6/0x1e0
[ 3779.096690][   T73] 
[ 3779.098938][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3779.098938][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3779.098938][   T73]      ipv6_find_idev+0x102/0x170
[ 3779.098938][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3779.098938][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3779.098938][   T73]      netlink_rcv_skb+0x130/0x360
[ 3779.098938][   T73]      netlink_unicast+0x449/0x710
[ 3779.098938][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3779.098938][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3779.098938][   T73]      ___sys_sendmsg+0xee/0x170
[ 3779.098938][   T73]      __sys_sendmsg+0xcd/0x170
[ 3779.098938][   T73]      do_syscall_64+0xc6/0x1e0
[ 3779.098938][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3779.098938][   T73] 
[ 3779.100669][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3779.100669][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3779.100669][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3779.100669][   T73]      ipv6_find_idev+0x102/0x170
[ 3779.100669][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3779.100669][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3779.100669][   T73]      netlink_rcv_skb+0x130/0x360
[ 3779.100669][   T73]      netlink_unicast+0x449/0x710
[ 3779.100669][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3779.100669][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3779.100669][   T73]      ___sys_sendmsg+0xee/0x170
[ 3779.100669][   T73]      __sys_sendmsg+0xcd/0x170
[ 3779.100669][   T73]      do_syscall_64+0xc6/0x1e0
[ 3779.100669][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3779.100669][   T73] 
[ 3779.102557][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3779.102899][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3779.102899][   T73]      netdev_get_by_index+0x5e/0x80
[ 3779.102899][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3779.102899][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3779.102899][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3779.102899][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3779.102899][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3779.102899][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3779.102899][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3779.102899][   T73]      addrconf_dad_begin+0x310/0x670
[ 3779.102899][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3779.102899][   T73]      process_one_work+0x84d/0x18a0
[ 3779.102899][   T73]      worker_thread+0x587/0xd30
[ 3779.102899][   T73]      kthread+0x28a/0x350
[ 3779.102899][   T73]      ret_from_fork+0x31/0x70
[ 3779.102899][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3779.102899][   T73] 
[ 3779.105040][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3779.105040][   T73]      netdev_get_by_index+0x5e/0x80
[ 3779.105040][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3779.105040][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3779.105040][   T73]      ip6_route_add+0x1c/0x140
[ 3779.105040][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3779.105040][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3779.105040][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3779.105040][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3779.105040][   T73]      netlink_rcv_skb+0x130/0x360
[ 3779.105040][   T73]      netlink_unicast+0x449/0x710
[ 3779.105040][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3779.105040][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3779.105040][   T73]      ___sys_sendmsg+0xee/0x170
[ 3779.105040][   T73]      __sys_sendmsg+0xcd/0x170
[ 3779.105040][   T73]      do_syscall_64+0xc6/0x1e0
[ 3779.105040][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3779.105040][   T73] 
[ 3779.107298][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3779.107298][   T73]      netdev_get_by_index+0x5e/0x80
[ 3779.107298][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3779.107298][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3779.107298][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3779.107298][   T73]      ipv6_add_addr+0x411/0x2000
[ 3779.107298][   T73]      inet6_addr_add+0x30e/0xa40
[ 3779.107298][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3779.107298][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3779.107298][   T73]      netlink_rcv_skb+0x130/0x360
[ 3779.107298][   T73]      netlink_unicast+0x449/0x710
[ 3779.107298][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3779.107298][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3779.107298][   T73]      ___sys_sendmsg+0xee/0x170
[ 3779.107298][   T73]      __sys_sendmsg+0xcd/0x170
[ 3779.107298][   T73]      do_syscall_64+0xc6/0x1e0
[ 3779.107298][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3779.107298][   T73] 
[ 3779.109514][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3779.109514][   T73]      netdev_get_by_index+0x5e/0x80
[ 3779.109514][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3779.109514][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3779.109514][   T73]      ip6_route_add+0x1c/0x140
[ 3779.109514][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3779.109514][   T73]      addrconf_add_dev+0xe2/0x170
[ 3779.109514][   T73]      inet6_addr_add+0x12f/0xa40
[ 3779.109514][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3779.109514][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3779.109514][   T73]      netlink_rcv_skb+0x130/0x360
[ 3779.109514][   T73]      netlink_unicast+0x449/0x710
[ 3779.109514][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3779.109514][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3779.109514][   T73]      ___sys_sendmsg+0xee/0x170
[ 3779.109514][   T73]      __sys_sendmsg+0xcd/0x170
[ 3779.109514][   T73]      do_syscall_64+0xc6/0x1e0
[ 3779.109514][   T73] 
[ 3779.111696][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3779.111696][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3779.111696][   T73]      ipv6_find_idev+0x102/0x170
[ 3779.111696][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3779.111696][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3779.111696][   T73]      netlink_rcv_skb+0x130/0x360
[ 3779.111696][   T73]      netlink_unicast+0x449/0x710
[ 3779.111696][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3779.111696][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3779.111696][   T73]      ___sys_sendmsg+0xee/0x170
[ 3779.111696][   T73]      __sys_sendmsg+0xcd/0x170
[ 3779.111696][   T73]      do_syscall_64+0xc6/0x1e0
[ 3779.111696][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3779.111696][   T73] 
[ 3779.113414][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3779.113414][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3779.113414][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3779.113414][   T73]      ipv6_find_idev+0x102/0x170
[ 3779.113414][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3779.113414][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3779.113414][   T73]      netlink_rcv_skb+0x130/0x360
[ 3779.113414][   T73]      netlink_unicast+0x449/0x710
[ 3779.113414][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3779.113414][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3779.113414][   T73]      ___sys_sendmsg+0xee/0x170
[ 3779.113414][   T73]      __sys_sendmsg+0xcd/0x170
[ 3779.113414][   T73]      do_syscall_64+0xc6/0x1e0
[ 3779.113414][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3779.113414][   T73] 
[ 3779.115299][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3779.115623][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3779.115623][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3779.115623][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3779.115623][   T73]      fib6_nh_init+0xa22/0x1580
[ 3779.115623][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3779.115623][   T73]      ip6_route_add+0x1c/0x140
[ 3779.115623][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3779.115623][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3779.115623][   T73]      netlink_rcv_skb+0x130/0x360
[ 3779.115623][   T73]      netlink_unicast+0x449/0x710
[ 3779.115623][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3779.115623][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3779.115623][   T73]      ___sys_sendmsg+0xee/0x170
[ 3779.115623][   T73]      __sys_sendmsg+0xcd/0x170
[ 3779.115623][   T73]      do_syscall_64+0xc6/0x1e0
[ 3779.115623][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3779.115623][   T73] 
[ 3779.117922][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3779.117922][   T73]      dst_init+0x84/0x4a0
[ 3779.117922][   T73]      dst_alloc+0x97/0x150
[ 3779.117922][   T73]      ip6_dst_alloc+0x23/0x90
[ 3779.117922][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3779.117922][   T73]      ip6_pol_route+0x56f/0x840
[ 3779.117922][   T73]      fib6_rule_lookup+0x456/0x630
[ 3779.117922][   T73]      ip6_route_input+0x59c/0xa50
[ 3779.117922][   T73]      ipv6_rcv+0x397/0x810
[ 3779.117922][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3779.117922][   T73]      process_backlog+0x101/0x620
[ 3779.117922][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3779.117922][   T73]      net_rx_action+0x495/0xbe0
[ 3779.117922][   T73]      __do_softirq+0x1b5/0x7f6
[ 3779.117922][   T73] 
[ 3779.119985][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3779.119985][   T73]      netdev_get_by_index+0x5e/0x80
[ 3779.119985][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3779.119985][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3779.119985][   T73]      ip6_route_add+0x1c/0x140
[ 3779.119985][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3779.119985][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3779.119985][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3779.119985][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3779.119985][   T73]      netlink_rcv_skb+0x130/0x360
[ 3779.119985][   T73]      netlink_unicast+0x449/0x710
[ 3779.119985][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3779.119985][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3779.119985][   T73]      ___sys_sendmsg+0xee/0x170
[ 3779.119985][   T73]      __sys_sendmsg+0xcd/0x170
[ 3779.119985][   T73]      do_syscall_64+0xc6/0x1e0
[ 3779.119985][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3779.119985][   T73] 
[ 3779.122459][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3779.122459][   T73]      netdev_get_by_index+0x5e/0x80
[ 3779.122459][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3779.122459][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3779.122459][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3779.122459][   T73]      ipv6_add_addr+0x411/0x2000
[ 3779.122459][   T73]      inet6_addr_add+0x30e/0xa40
[ 3779.122459][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3779.122459][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3779.122459][   T73]      netlink_rcv_skb+0x130/0x360
[ 3779.122459][   T73]      netlink_unicast+0x449/0x710
[ 3779.122459][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3779.122459][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3779.122459][   T73]      ___sys_sendmsg+0xee/0x170
[ 3779.122459][   T73]      __sys_sendmsg+0xcd/0x170
[ 3779.122459][   T73]      do_syscall_64+0xc6/0x1e0
[ 3779.122459][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3779.122459][   T73] 
[ 3779.124919][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3779.124919][   T73]      netdev_get_by_index+0x5e/0x80
[ 3779.124919][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3779.124919][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3779.124919][   T73]      ip6_route_add+0x1c/0x140
[ 3779.124919][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3779.124919][   T73]      addrconf_add_dev+0xe2/0x170
[ 3779.124919][   T73]      inet6_addr_add+0x12f/0xa40
[ 3779.124919][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3779.124919][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3779.124919][   T73]      netlink_rcv_skb+0x130/0x360
[ 3779.124919][   T73]      netlink_unicast+0x449/0x710
[ 3779.124919][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3779.124919][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3779.124919][   T73]      ___sys_sendmsg+0xee/0x170
[ 3779.124919][   T73]      __sys_sendmsg+0xcd/0x170
[ 3779.124919][   T73]      do_syscall_64+0xc6/0x1e0
[ 3779.124919][   T73] 
[ 3779.127361][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3779.127361][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3779.127361][   T73]      ipv6_find_idev+0x102/0x170
[ 3779.127361][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3779.127361][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3779.127361][   T73]      netlink_rcv_skb+0x130/0x360
[ 3779.127361][   T73]      netlink_unicast+0x449/0x710
[ 3779.127361][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3779.127361][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3779.127361][   T73]      ___sys_sendmsg+0xee/0x170
[ 3779.127361][   T73]      __sys_sendmsg+0xcd/0x170
[ 3779.127361][   T73]      do_syscall_64+0xc6/0x1e0
[ 3779.127361][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3779.127361][   T73] 
[ 3779.129247][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3779.129247][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3779.129247][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3779.129247][   T73]      ipv6_find_idev+0x102/0x170
[ 3779.129247][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3779.129247][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3779.129247][   T73]      netlink_rcv_skb+0x130/0x360
[ 3779.129247][   T73]      netlink_unicast+0x449/0x710
[ 3779.129247][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3779.129247][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3779.129247][   T73]      ___sys_sendmsg+0xee/0x170
[ 3779.129247][   T73]      __sys_sendmsg+0xcd/0x170
[ 3779.129247][   T73]      do_syscall_64+0xc6/0x1e0
[ 3779.129247][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3779.129247][   T73] 
[ 3779.132306][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3779.132605][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3779.132605][   T73]      netdev_get_by_index+0x5e/0x80
[ 3779.132605][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3779.132605][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3779.132605][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3779.132605][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3779.132605][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3779.132605][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3779.132605][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3779.132605][   T73]      addrconf_dad_begin+0x310/0x670
[ 3779.132605][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3779.132605][   T73]      process_one_work+0x84d/0x18a0
[ 3779.132605][   T73]      worker_thread+0x587/0xd30
[ 3779.132605][   T73]      kthread+0x28a/0x350
[ 3779.132605][   T73]      ret_from_fork+0x31/0x70
[ 3779.132605][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3779.132605][   T73] 
[ 3779.135338][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3779.135338][   T73]      netdev_get_by_index+0x5e/0x80
[ 3779.135338][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3779.135338][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3779.135338][   T73]      ip6_route_add+0x1c/0x140
[ 3779.135338][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3779.135338][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3779.135338][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3779.135338][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3779.135338][   T73]      netlink_rcv_skb+0x130/0x360
[ 3779.135338][   T73]      netlink_unicast+0x449/0x710
[ 3779.135338][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3779.135338][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3779.135338][   T73]      ___sys_sendmsg+0xee/0x170
[ 3779.135338][   T73]      __sys_sendmsg+0xcd/0x170
[ 3779.135338][   T73]      do_syscall_64+0xc6/0x1e0
[ 3779.135338][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3779.135338][   T73] 
[ 3779.137823][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3779.137823][   T73]      netdev_get_by_index+0x5e/0x80
[ 3779.137823][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3779.137823][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3779.137823][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3779.137823][   T73]      ipv6_add_addr+0x411/0x2000
[ 3779.137823][   T73]      inet6_addr_add+0x30e/0xa40
[ 3779.137823][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3779.137823][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3779.137823][   T73]      netlink_rcv_skb+0x130/0x360
[ 3779.137823][   T73]      netlink_unicast+0x449/0x710
[ 3779.137823][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3779.137823][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3779.137823][   T73]      ___sys_sendmsg+0xee/0x170
[ 3779.137823][   T73]      __sys_sendmsg+0xcd/0x170
[ 3779.137823][   T73]      do_syscall_64+0xc6/0x1e0
[ 3779.137823][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3779.137823][   T73] 
[ 3779.140224][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3779.140224][   T73]      netdev_get_by_index+0x5e/0x80
[ 3779.140224][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3779.140224][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3779.140224][   T73]      ip6_route_add+0x1c/0x140
[ 3779.140224][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3779.140224][   T73]      addrconf_add_dev+0xe2/0x170
[ 3779.140224][   T73]      inet6_addr_add+0x12f/0xa40
[ 3779.140224][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3779.140224][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3779.140224][   T73]      netlink_rcv_skb+0x130/0x360
[ 3779.140224][   T73]      netlink_unicast+0x449/0x710
[ 3779.140224][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3779.140224][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3779.140224][   T73]      ___sys_sendmsg+0xee/0x170
[ 3779.140224][   T73]      __sys_sendmsg+0xcd/0x170
[ 3779.140224][   T73]      do_syscall_64+0xc6/0x1e0
[ 3779.140224][   T73] 
[ 3779.142699][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3779.142699][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3779.142699][   T73]      ipv6_find_idev+0x102/0x170
[ 3779.142699][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3779.142699][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3779.142699][   T73]      netlink_rcv_skb+0x130/0x360
[ 3779.142699][   T73]      netlink_unicast+0x449/0x710
[ 3779.142699][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3779.142699][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3779.142699][   T73]      ___sys_sendmsg+0xee/0x170
[ 3779.142699][   T73]      __sys_sendmsg+0xcd/0x170
[ 3779.142699][   T73]      do_syscall_64+0xc6/0x1e0
[ 3779.142699][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3779.142699][   T73] 
[ 3779.144593][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3779.144593][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3779.144593][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3779.144593][   T73]      ipv6_find_idev+0x102/0x170
[ 3779.144593][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3779.144593][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3779.144593][   T73]      netlink_rcv_skb+0x130/0x360
[ 3779.144593][   T73]      netlink_unicast+0x449/0x710
[ 3779.144593][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3779.144593][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3779.144593][   T73]      ___sys_sendmsg+0xee/0x170
[ 3779.144593][   T73]      __sys_sendmsg+0xcd/0x170
[ 3779.144593][   T73]      do_syscall_64+0xc6/0x1e0
[ 3779.144593][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3779.144593][   T73] 
[ 3789.215818][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3789.216303][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3789.216303][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3789.216303][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3789.216303][   T73]      fib6_nh_init+0xa22/0x1580
[ 3789.216303][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3789.216303][   T73]      ip6_route_add+0x1c/0x140
[ 3789.216303][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3789.216303][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3789.216303][   T73]      netlink_rcv_skb+0x130/0x360
[ 3789.216303][   T73]      netlink_unicast+0x449/0x710
[ 3789.216303][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3789.216303][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3789.216303][   T73]      ___sys_sendmsg+0xee/0x170
[ 3789.216303][   T73]      __sys_sendmsg+0xcd/0x170
[ 3789.216303][   T73]      do_syscall_64+0xc6/0x1e0
[ 3789.216303][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3789.216303][   T73] 
[ 3789.218440][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3789.218440][   T73]      dst_init+0x84/0x4a0
[ 3789.218440][   T73]      dst_alloc+0x97/0x150
[ 3789.218440][   T73]      ip6_dst_alloc+0x23/0x90
[ 3789.218440][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3789.218440][   T73]      ip6_pol_route+0x56f/0x840
[ 3789.218440][   T73]      fib6_rule_lookup+0x456/0x630
[ 3789.218440][   T73]      ip6_route_input+0x59c/0xa50
[ 3789.218440][   T73]      ipv6_rcv+0x397/0x810
[ 3789.218440][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3789.218440][   T73]      process_backlog+0x101/0x620
[ 3789.218440][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3789.218440][   T73]      net_rx_action+0x495/0xbe0
[ 3789.218440][   T73]      __do_softirq+0x1b5/0x7f6
[ 3789.218440][   T73] 
[ 3789.220279][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3789.220279][   T73]      netdev_get_by_index+0x5e/0x80
[ 3789.220279][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3789.220279][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3789.220279][   T73]      ip6_route_add+0x1c/0x140
[ 3789.220279][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3789.220279][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3789.220279][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3789.220279][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3789.220279][   T73]      netlink_rcv_skb+0x130/0x360
[ 3789.220279][   T73]      netlink_unicast+0x449/0x710
[ 3789.220279][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3789.220279][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3789.220279][   T73]      ___sys_sendmsg+0xee/0x170
[ 3789.220279][   T73]      __sys_sendmsg+0xcd/0x170
[ 3789.220279][   T73]      do_syscall_64+0xc6/0x1e0
[ 3789.220279][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3789.220279][   T73] 
[ 3789.222512][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3789.222512][   T73]      netdev_get_by_index+0x5e/0x80
[ 3789.222512][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3789.222512][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3789.222512][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3789.222512][   T73]      ipv6_add_addr+0x411/0x2000
[ 3789.222512][   T73]      inet6_addr_add+0x30e/0xa40
[ 3789.222512][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3789.222512][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3789.222512][   T73]      netlink_rcv_skb+0x130/0x360
[ 3789.222512][   T73]      netlink_unicast+0x449/0x710
[ 3789.222512][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3789.222512][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3789.222512][   T73]      ___sys_sendmsg+0xee/0x170
[ 3789.222512][   T73]      __sys_sendmsg+0xcd/0x170
[ 3789.222512][   T73]      do_syscall_64+0xc6/0x1e0
[ 3789.222512][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3789.222512][   T73] 
[ 3789.224754][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3789.224754][   T73]      netdev_get_by_index+0x5e/0x80
[ 3789.224754][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3789.224754][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3789.224754][   T73]      ip6_route_add+0x1c/0x140
[ 3789.224754][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3789.224754][   T73]      addrconf_add_dev+0xe2/0x170
[ 3789.224754][   T73]      inet6_addr_add+0x12f/0xa40
[ 3789.224754][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3789.224754][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3789.224754][   T73]      netlink_rcv_skb+0x130/0x360
[ 3789.224754][   T73]      netlink_unicast+0x449/0x710
[ 3789.224754][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3789.224754][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3789.224754][   T73]      ___sys_sendmsg+0xee/0x170
[ 3789.224754][   T73]      __sys_sendmsg+0xcd/0x170
[ 3789.224754][   T73]      do_syscall_64+0xc6/0x1e0
[ 3789.224754][   T73] 
[ 3789.226953][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3789.226953][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3789.226953][   T73]      ipv6_find_idev+0x102/0x170
[ 3789.226953][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3789.226953][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3789.226953][   T73]      netlink_rcv_skb+0x130/0x360
[ 3789.226953][   T73]      netlink_unicast+0x449/0x710
[ 3789.226953][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3789.226953][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3789.226953][   T73]      ___sys_sendmsg+0xee/0x170
[ 3789.226953][   T73]      __sys_sendmsg+0xcd/0x170
[ 3789.226953][   T73]      do_syscall_64+0xc6/0x1e0
[ 3789.226953][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3789.226953][   T73] 
[ 3789.228683][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3789.228683][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3789.228683][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3789.228683][   T73]      ipv6_find_idev+0x102/0x170
[ 3789.228683][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3789.228683][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3789.228683][   T73]      netlink_rcv_skb+0x130/0x360
[ 3789.228683][   T73]      netlink_unicast+0x449/0x710
[ 3789.228683][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3789.228683][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3789.228683][   T73]      ___sys_sendmsg+0xee/0x170
[ 3789.228683][   T73]      __sys_sendmsg+0xcd/0x170
[ 3789.228683][   T73]      do_syscall_64+0xc6/0x1e0
[ 3789.228683][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3789.228683][   T73] 
[ 3789.230589][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3789.230912][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3789.230912][   T73]      netdev_get_by_index+0x5e/0x80
[ 3789.230912][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3789.230912][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3789.230912][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3789.230912][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3789.230912][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3789.230912][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3789.230912][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3789.230912][   T73]      addrconf_dad_begin+0x310/0x670
[ 3789.230912][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3789.230912][   T73]      process_one_work+0x84d/0x18a0
[ 3789.230912][   T73]      worker_thread+0x587/0xd30
[ 3789.230912][   T73]      kthread+0x28a/0x350
[ 3789.230912][   T73]      ret_from_fork+0x31/0x70
[ 3789.230912][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3789.230912][   T73] 
[ 3789.233028][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3789.233028][   T73]      netdev_get_by_index+0x5e/0x80
[ 3789.233028][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3789.233028][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3789.233028][   T73]      ip6_route_add+0x1c/0x140
[ 3789.233028][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3789.233028][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3789.233028][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3789.233028][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3789.233028][   T73]      netlink_rcv_skb+0x130/0x360
[ 3789.233028][   T73]      netlink_unicast+0x449/0x710
[ 3789.233028][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3789.233028][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3789.233028][   T73]      ___sys_sendmsg+0xee/0x170
[ 3789.233028][   T73]      __sys_sendmsg+0xcd/0x170
[ 3789.233028][   T73]      do_syscall_64+0xc6/0x1e0
[ 3789.233028][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3789.233028][   T73] 
[ 3789.235287][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3789.235287][   T73]      netdev_get_by_index+0x5e/0x80
[ 3789.235287][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3789.235287][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3789.235287][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3789.235287][   T73]      ipv6_add_addr+0x411/0x2000
[ 3789.235287][   T73]      inet6_addr_add+0x30e/0xa40
[ 3789.235287][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3789.235287][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3789.235287][   T73]      netlink_rcv_skb+0x130/0x360
[ 3789.235287][   T73]      netlink_unicast+0x449/0x710
[ 3789.235287][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3789.235287][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3789.235287][   T73]      ___sys_sendmsg+0xee/0x170
[ 3789.235287][   T73]      __sys_sendmsg+0xcd/0x170
[ 3789.235287][   T73]      do_syscall_64+0xc6/0x1e0
[ 3789.235287][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3789.235287][   T73] 
[ 3789.237538][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3789.237538][   T73]      netdev_get_by_index+0x5e/0x80
[ 3789.237538][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3789.237538][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3789.237538][   T73]      ip6_route_add+0x1c/0x140
[ 3789.237538][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3789.237538][   T73]      addrconf_add_dev+0xe2/0x170
[ 3789.237538][   T73]      inet6_addr_add+0x12f/0xa40
[ 3789.237538][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3789.237538][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3789.237538][   T73]      netlink_rcv_skb+0x130/0x360
[ 3789.237538][   T73]      netlink_unicast+0x449/0x710
[ 3789.237538][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3789.237538][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3789.237538][   T73]      ___sys_sendmsg+0xee/0x170
[ 3789.237538][   T73]      __sys_sendmsg+0xcd/0x170
[ 3789.237538][   T73]      do_syscall_64+0xc6/0x1e0
[ 3789.237538][   T73] 
[ 3789.239741][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3789.239741][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3789.239741][   T73]      ipv6_find_idev+0x102/0x170
[ 3789.239741][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3789.239741][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3789.239741][   T73]      netlink_rcv_skb+0x130/0x360
[ 3789.239741][   T73]      netlink_unicast+0x449/0x710
[ 3789.239741][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3789.239741][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3789.239741][   T73]      ___sys_sendmsg+0xee/0x170
[ 3789.239741][   T73]      __sys_sendmsg+0xcd/0x170
[ 3789.239741][   T73]      do_syscall_64+0xc6/0x1e0
[ 3789.239741][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3789.239741][   T73] 
[ 3789.241473][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3789.241473][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3789.241473][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3789.241473][   T73]      ipv6_find_idev+0x102/0x170
[ 3789.241473][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3789.241473][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3789.241473][   T73]      netlink_rcv_skb+0x130/0x360
[ 3789.241473][   T73]      netlink_unicast+0x449/0x710
[ 3789.241473][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3789.241473][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3789.241473][   T73]      ___sys_sendmsg+0xee/0x170
[ 3789.241473][   T73]      __sys_sendmsg+0xcd/0x170
[ 3789.241473][   T73]      do_syscall_64+0xc6/0x1e0
[ 3789.241473][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3789.241473][   T73] 
[ 3789.243372][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3789.243667][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3789.243667][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3789.243667][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3789.243667][   T73]      fib6_nh_init+0xa22/0x1580
[ 3789.243667][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3789.243667][   T73]      ip6_route_add+0x1c/0x140
[ 3789.243667][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3789.243667][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3789.243667][   T73]      netlink_rcv_skb+0x130/0x360
[ 3789.243667][   T73]      netlink_unicast+0x449/0x710
[ 3789.243667][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3789.243667][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3789.243667][   T73]      ___sys_sendmsg+0xee/0x170
[ 3789.243667][   T73]      __sys_sendmsg+0xcd/0x170
[ 3789.243667][   T73]      do_syscall_64+0xc6/0x1e0
[ 3789.243667][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3789.243667][   T73] 
[ 3789.245962][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3789.245962][   T73]      dst_init+0x84/0x4a0
[ 3789.245962][   T73]      dst_alloc+0x97/0x150
[ 3789.245962][   T73]      ip6_dst_alloc+0x23/0x90
[ 3789.245962][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3789.245962][   T73]      ip6_pol_route+0x56f/0x840
[ 3789.245962][   T73]      fib6_rule_lookup+0x456/0x630
[ 3789.245962][   T73]      ip6_route_input+0x59c/0xa50
[ 3789.245962][   T73]      ipv6_rcv+0x397/0x810
[ 3789.245962][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3789.245962][   T73]      process_backlog+0x101/0x620
[ 3789.245962][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3789.245962][   T73]      net_rx_action+0x495/0xbe0
[ 3789.245962][   T73]      __do_softirq+0x1b5/0x7f6
[ 3789.245962][   T73] 
[ 3789.248046][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3789.248046][   T73]      netdev_get_by_index+0x5e/0x80
[ 3789.248046][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3789.248046][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3789.248046][   T73]      ip6_route_add+0x1c/0x140
[ 3789.248046][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3789.248046][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3789.248046][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3789.248046][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3789.248046][   T73]      netlink_rcv_skb+0x130/0x360
[ 3789.248046][   T73]      netlink_unicast+0x449/0x710
[ 3789.248046][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3789.248046][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3789.248046][   T73]      ___sys_sendmsg+0xee/0x170
[ 3789.248046][   T73]      __sys_sendmsg+0xcd/0x170
[ 3789.248046][   T73]      do_syscall_64+0xc6/0x1e0
[ 3789.248046][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3789.248046][   T73] 
[ 3789.250534][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3789.250534][   T73]      netdev_get_by_index+0x5e/0x80
[ 3789.250534][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3789.250534][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3789.250534][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3789.250534][   T73]      ipv6_add_addr+0x411/0x2000
[ 3789.250534][   T73]      inet6_addr_add+0x30e/0xa40
[ 3789.250534][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3789.250534][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3789.250534][   T73]      netlink_rcv_skb+0x130/0x360
[ 3789.250534][   T73]      netlink_unicast+0x449/0x710
[ 3789.250534][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3789.250534][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3789.250534][   T73]      ___sys_sendmsg+0xee/0x170
[ 3789.250534][   T73]      __sys_sendmsg+0xcd/0x170
[ 3789.250534][   T73]      do_syscall_64+0xc6/0x1e0
[ 3789.250534][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3789.250534][   T73] 
[ 3789.253025][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3789.253025][   T73]      netdev_get_by_index+0x5e/0x80
[ 3789.253025][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3789.253025][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3789.253025][   T73]      ip6_route_add+0x1c/0x140
[ 3789.253025][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3789.253025][   T73]      addrconf_add_dev+0xe2/0x170
[ 3789.253025][   T73]      inet6_addr_add+0x12f/0xa40
[ 3789.253025][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3789.253025][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3789.253025][   T73]      netlink_rcv_skb+0x130/0x360
[ 3789.253025][   T73]      netlink_unicast+0x449/0x710
[ 3789.253025][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3789.253025][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3789.253025][   T73]      ___sys_sendmsg+0xee/0x170
[ 3789.253025][   T73]      __sys_sendmsg+0xcd/0x170
[ 3789.253025][   T73]      do_syscall_64+0xc6/0x1e0
[ 3789.253025][   T73] 
[ 3789.255445][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3789.255445][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3789.255445][   T73]      ipv6_find_idev+0x102/0x170
[ 3789.255445][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3789.255445][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3789.255445][   T73]      netlink_rcv_skb+0x130/0x360
[ 3789.255445][   T73]      netlink_unicast+0x449/0x710
[ 3789.255445][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3789.255445][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3789.255445][   T73]      ___sys_sendmsg+0xee/0x170
[ 3789.255445][   T73]      __sys_sendmsg+0xcd/0x170
[ 3789.255445][   T73]      do_syscall_64+0xc6/0x1e0
[ 3789.255445][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3789.255445][   T73] 
[ 3789.257341][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3789.257341][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3789.257341][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3789.257341][   T73]      ipv6_find_idev+0x102/0x170
[ 3789.257341][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3789.257341][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3789.257341][   T73]      netlink_rcv_skb+0x130/0x360
[ 3789.257341][   T73]      netlink_unicast+0x449/0x710
[ 3789.257341][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3789.257341][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3789.257341][   T73]      ___sys_sendmsg+0xee/0x170
[ 3789.257341][   T73]      __sys_sendmsg+0xcd/0x170
[ 3789.257341][   T73]      do_syscall_64+0xc6/0x1e0
[ 3789.257341][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3789.257341][   T73] 
[ 3789.259485][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3789.259848][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3789.259848][   T73]      netdev_get_by_index+0x5e/0x80
[ 3789.259848][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3789.259848][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3789.259848][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3789.259848][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3789.259848][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3789.259848][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3789.259848][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3789.259848][   T73]      addrconf_dad_begin+0x310/0x670
[ 3789.259848][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3789.259848][   T73]      process_one_work+0x84d/0x18a0
[ 3789.259848][   T73]      worker_thread+0x587/0xd30
[ 3789.259848][   T73]      kthread+0x28a/0x350
[ 3789.259848][   T73]      ret_from_fork+0x31/0x70
[ 3789.259848][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3789.259848][   T73] 
[ 3789.262159][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3789.262159][   T73]      netdev_get_by_index+0x5e/0x80
[ 3789.262159][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3789.262159][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3789.262159][   T73]      ip6_route_add+0x1c/0x140
[ 3789.262159][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3789.262159][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3789.262159][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3789.262159][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3789.262159][   T73]      netlink_rcv_skb+0x130/0x360
[ 3789.262159][   T73]      netlink_unicast+0x449/0x710
[ 3789.262159][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3789.262159][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3789.262159][   T73]      ___sys_sendmsg+0xee/0x170
[ 3789.262159][   T73]      __sys_sendmsg+0xcd/0x170
[ 3789.262159][   T73]      do_syscall_64+0xc6/0x1e0
[ 3789.262159][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3789.262159][   T73] 
[ 3789.264653][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3789.264653][   T73]      netdev_get_by_index+0x5e/0x80
[ 3789.264653][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3789.264653][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3789.264653][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3789.264653][   T73]      ipv6_add_addr+0x411/0x2000
[ 3789.264653][   T73]      inet6_addr_add+0x30e/0xa40
[ 3789.264653][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3789.264653][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3789.264653][   T73]      netlink_rcv_skb+0x130/0x360
[ 3789.264653][   T73]      netlink_unicast+0x449/0x710
[ 3789.264653][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3789.264653][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3789.264653][   T73]      ___sys_sendmsg+0xee/0x170
[ 3789.264653][   T73]      __sys_sendmsg+0xcd/0x170
[ 3789.264653][   T73]      do_syscall_64+0xc6/0x1e0
[ 3789.264653][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3789.264653][   T73] 
[ 3789.267121][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3789.267121][   T73]      netdev_get_by_index+0x5e/0x80
[ 3789.267121][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3789.267121][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3789.267121][   T73]      ip6_route_add+0x1c/0x140
[ 3789.267121][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3789.267121][   T73]      addrconf_add_dev+0xe2/0x170
[ 3789.267121][   T73]      inet6_addr_add+0x12f/0xa40
[ 3789.267121][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3789.267121][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3789.267121][   T73]      netlink_rcv_skb+0x130/0x360
[ 3789.267121][   T73]      netlink_unicast+0x449/0x710
[ 3789.267121][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3789.267121][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3789.267121][   T73]      ___sys_sendmsg+0xee/0x170
[ 3789.267121][   T73]      __sys_sendmsg+0xcd/0x170
[ 3789.267121][   T73]      do_syscall_64+0xc6/0x1e0
[ 3789.267121][   T73] 
[ 3789.269630][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3789.269630][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3789.269630][   T73]      ipv6_find_idev+0x102/0x170
[ 3789.269630][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3789.269630][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3789.269630][   T73]      netlink_rcv_skb+0x130/0x360
[ 3789.269630][   T73]      netlink_unicast+0x449/0x710
[ 3789.269630][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3789.269630][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3789.269630][   T73]      ___sys_sendmsg+0xee/0x170
[ 3789.269630][   T73]      __sys_sendmsg+0xcd/0x170
[ 3789.269630][   T73]      do_syscall_64+0xc6/0x1e0
[ 3789.269630][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3789.269630][   T73] 
[ 3789.271547][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3789.271547][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3789.271547][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3789.271547][   T73]      ipv6_find_idev+0x102/0x170
[ 3789.271547][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3789.271547][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3789.271547][   T73]      netlink_rcv_skb+0x130/0x360
[ 3789.271547][   T73]      netlink_unicast+0x449/0x710
[ 3789.271547][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3789.271547][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3789.271547][   T73]      ___sys_sendmsg+0xee/0x170
[ 3789.271547][   T73]      __sys_sendmsg+0xcd/0x170
[ 3789.271547][   T73]      do_syscall_64+0xc6/0x1e0
[ 3789.271547][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3789.271547][   T73] 
[ 3799.527720][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3799.528248][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3799.528248][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3799.528248][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3799.528248][   T73]      fib6_nh_init+0xa22/0x1580
[ 3799.528248][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3799.528248][   T73]      ip6_route_add+0x1c/0x140
[ 3799.528248][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3799.528248][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3799.528248][   T73]      netlink_rcv_skb+0x130/0x360
[ 3799.528248][   T73]      netlink_unicast+0x449/0x710
[ 3799.528248][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3799.528248][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3799.528248][   T73]      ___sys_sendmsg+0xee/0x170
[ 3799.528248][   T73]      __sys_sendmsg+0xcd/0x170
[ 3799.528248][   T73]      do_syscall_64+0xc6/0x1e0
[ 3799.528248][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3799.528248][   T73] 
[ 3799.530219][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3799.530219][   T73]      dst_init+0x84/0x4a0
[ 3799.530219][   T73]      dst_alloc+0x97/0x150
[ 3799.530219][   T73]      ip6_dst_alloc+0x23/0x90
[ 3799.530219][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3799.530219][   T73]      ip6_pol_route+0x56f/0x840
[ 3799.530219][   T73]      fib6_rule_lookup+0x456/0x630
[ 3799.530219][   T73]      ip6_route_input+0x59c/0xa50
[ 3799.530219][   T73]      ipv6_rcv+0x397/0x810
[ 3799.530219][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3799.530219][   T73]      process_backlog+0x101/0x620
[ 3799.530219][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3799.530219][   T73]      net_rx_action+0x495/0xbe0
[ 3799.530219][   T73]      __do_softirq+0x1b5/0x7f6
[ 3799.530219][   T73] 
[ 3799.531929][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3799.531929][   T73]      netdev_get_by_index+0x5e/0x80
[ 3799.531929][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3799.531929][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3799.531929][   T73]      ip6_route_add+0x1c/0x140
[ 3799.531929][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3799.531929][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3799.531929][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3799.531929][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3799.531929][   T73]      netlink_rcv_skb+0x130/0x360
[ 3799.531929][   T73]      netlink_unicast+0x449/0x710
[ 3799.531929][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3799.531929][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3799.531929][   T73]      ___sys_sendmsg+0xee/0x170
[ 3799.531929][   T73]      __sys_sendmsg+0xcd/0x170
[ 3799.531929][   T73]      do_syscall_64+0xc6/0x1e0
[ 3799.531929][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3799.531929][   T73] 
[ 3799.533962][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3799.533962][   T73]      netdev_get_by_index+0x5e/0x80
[ 3799.533962][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3799.533962][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3799.533962][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3799.533962][   T73]      ipv6_add_addr+0x411/0x2000
[ 3799.533962][   T73]      inet6_addr_add+0x30e/0xa40
[ 3799.533962][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3799.533962][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3799.533962][   T73]      netlink_rcv_skb+0x130/0x360
[ 3799.533962][   T73]      netlink_unicast+0x449/0x710
[ 3799.533962][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3799.533962][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3799.533962][   T73]      ___sys_sendmsg+0xee/0x170
[ 3799.533962][   T73]      __sys_sendmsg+0xcd/0x170
[ 3799.533962][   T73]      do_syscall_64+0xc6/0x1e0
[ 3799.533962][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3799.533962][   T73] 
[ 3799.536042][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3799.536042][   T73]      netdev_get_by_index+0x5e/0x80
[ 3799.536042][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3799.536042][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3799.536042][   T73]      ip6_route_add+0x1c/0x140
[ 3799.536042][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3799.536042][   T73]      addrconf_add_dev+0xe2/0x170
[ 3799.536042][   T73]      inet6_addr_add+0x12f/0xa40
[ 3799.536042][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3799.536042][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3799.536042][   T73]      netlink_rcv_skb+0x130/0x360
[ 3799.536042][   T73]      netlink_unicast+0x449/0x710
[ 3799.536042][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3799.536042][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3799.536042][   T73]      ___sys_sendmsg+0xee/0x170
[ 3799.536042][   T73]      __sys_sendmsg+0xcd/0x170
[ 3799.536042][   T73]      do_syscall_64+0xc6/0x1e0
[ 3799.536042][   T73] 
[ 3799.538078][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3799.538078][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3799.538078][   T73]      ipv6_find_idev+0x102/0x170
[ 3799.538078][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3799.538078][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3799.538078][   T73]      netlink_rcv_skb+0x130/0x360
[ 3799.538078][   T73]      netlink_unicast+0x449/0x710
[ 3799.538078][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3799.538078][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3799.538078][   T73]      ___sys_sendmsg+0xee/0x170
[ 3799.538078][   T73]      __sys_sendmsg+0xcd/0x170
[ 3799.538078][   T73]      do_syscall_64+0xc6/0x1e0
[ 3799.538078][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3799.538078][   T73] 
[ 3799.539691][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3799.539691][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3799.539691][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3799.539691][   T73]      ipv6_find_idev+0x102/0x170
[ 3799.539691][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3799.539691][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3799.539691][   T73]      netlink_rcv_skb+0x130/0x360
[ 3799.539691][   T73]      netlink_unicast+0x449/0x710
[ 3799.539691][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3799.539691][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3799.539691][   T73]      ___sys_sendmsg+0xee/0x170
[ 3799.539691][   T73]      __sys_sendmsg+0xcd/0x170
[ 3799.539691][   T73]      do_syscall_64+0xc6/0x1e0
[ 3799.539691][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3799.539691][   T73] 
[ 3799.541432][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3799.541749][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3799.541749][   T73]      netdev_get_by_index+0x5e/0x80
[ 3799.541749][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3799.541749][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3799.541749][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3799.541749][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3799.541749][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3799.541749][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3799.541749][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3799.541749][   T73]      addrconf_dad_begin+0x310/0x670
[ 3799.541749][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3799.541749][   T73]      process_one_work+0x84d/0x18a0
[ 3799.541749][   T73]      worker_thread+0x587/0xd30
[ 3799.541749][   T73]      kthread+0x28a/0x350
[ 3799.541749][   T73]      ret_from_fork+0x31/0x70
[ 3799.541749][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3799.541749][   T73] 
[ 3799.543709][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3799.543709][   T73]      netdev_get_by_index+0x5e/0x80
[ 3799.543709][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3799.543709][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3799.543709][   T73]      ip6_route_add+0x1c/0x140
[ 3799.543709][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3799.543709][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3799.543709][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3799.543709][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3799.543709][   T73]      netlink_rcv_skb+0x130/0x360
[ 3799.543709][   T73]      netlink_unicast+0x449/0x710
[ 3799.543709][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3799.543709][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3799.543709][   T73]      ___sys_sendmsg+0xee/0x170
[ 3799.543709][   T73]      __sys_sendmsg+0xcd/0x170
[ 3799.543709][   T73]      do_syscall_64+0xc6/0x1e0
[ 3799.543709][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3799.543709][   T73] 
[ 3799.545736][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3799.545736][   T73]      netdev_get_by_index+0x5e/0x80
[ 3799.545736][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3799.545736][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3799.545736][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3799.545736][   T73]      ipv6_add_addr+0x411/0x2000
[ 3799.545736][   T73]      inet6_addr_add+0x30e/0xa40
[ 3799.545736][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3799.545736][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3799.545736][   T73]      netlink_rcv_skb+0x130/0x360
[ 3799.545736][   T73]      netlink_unicast+0x449/0x710
[ 3799.545736][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3799.545736][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3799.545736][   T73]      ___sys_sendmsg+0xee/0x170
[ 3799.545736][   T73]      __sys_sendmsg+0xcd/0x170
[ 3799.545736][   T73]      do_syscall_64+0xc6/0x1e0
[ 3799.545736][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3799.545736][   T73] 
[ 3799.547797][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3799.547797][   T73]      netdev_get_by_index+0x5e/0x80
[ 3799.547797][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3799.547797][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3799.547797][   T73]      ip6_route_add+0x1c/0x140
[ 3799.547797][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3799.547797][   T73]      addrconf_add_dev+0xe2/0x170
[ 3799.547797][   T73]      inet6_addr_add+0x12f/0xa40
[ 3799.547797][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3799.547797][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3799.547797][   T73]      netlink_rcv_skb+0x130/0x360
[ 3799.547797][   T73]      netlink_unicast+0x449/0x710
[ 3799.547797][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3799.547797][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3799.547797][   T73]      ___sys_sendmsg+0xee/0x170
[ 3799.547797][   T73]      __sys_sendmsg+0xcd/0x170
[ 3799.547797][   T73]      do_syscall_64+0xc6/0x1e0
[ 3799.547797][   T73] 
[ 3799.549784][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3799.549784][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3799.549784][   T73]      ipv6_find_idev+0x102/0x170
[ 3799.549784][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3799.549784][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3799.549784][   T73]      netlink_rcv_skb+0x130/0x360
[ 3799.549784][   T73]      netlink_unicast+0x449/0x710
[ 3799.549784][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3799.549784][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3799.549784][   T73]      ___sys_sendmsg+0xee/0x170
[ 3799.549784][   T73]      __sys_sendmsg+0xcd/0x170
[ 3799.549784][   T73]      do_syscall_64+0xc6/0x1e0
[ 3799.549784][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3799.549784][   T73] 
[ 3799.551356][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3799.551356][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3799.551356][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3799.551356][   T73]      ipv6_find_idev+0x102/0x170
[ 3799.551356][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3799.551356][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3799.551356][   T73]      netlink_rcv_skb+0x130/0x360
[ 3799.551356][   T73]      netlink_unicast+0x449/0x710
[ 3799.551356][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3799.551356][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3799.551356][   T73]      ___sys_sendmsg+0xee/0x170
[ 3799.551356][   T73]      __sys_sendmsg+0xcd/0x170
[ 3799.551356][   T73]      do_syscall_64+0xc6/0x1e0
[ 3799.551356][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3799.551356][   T73] 
[ 3799.553068][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3799.553344][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3799.553344][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3799.553344][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3799.553344][   T73]      fib6_nh_init+0xa22/0x1580
[ 3799.553344][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3799.553344][   T73]      ip6_route_add+0x1c/0x140
[ 3799.553344][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3799.553344][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3799.553344][   T73]      netlink_rcv_skb+0x130/0x360
[ 3799.553344][   T73]      netlink_unicast+0x449/0x710
[ 3799.553344][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3799.553344][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3799.553344][   T73]      ___sys_sendmsg+0xee/0x170
[ 3799.553344][   T73]      __sys_sendmsg+0xcd/0x170
[ 3799.553344][   T73]      do_syscall_64+0xc6/0x1e0
[ 3799.553344][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3799.553344][   T73] 
[ 3799.555463][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3799.555463][   T73]      dst_init+0x84/0x4a0
[ 3799.555463][   T73]      dst_alloc+0x97/0x150
[ 3799.555463][   T73]      ip6_dst_alloc+0x23/0x90
[ 3799.555463][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3799.555463][   T73]      ip6_pol_route+0x56f/0x840
[ 3799.555463][   T73]      fib6_rule_lookup+0x456/0x630
[ 3799.555463][   T73]      ip6_route_input+0x59c/0xa50
[ 3799.555463][   T73]      ipv6_rcv+0x397/0x810
[ 3799.555463][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3799.555463][   T73]      process_backlog+0x101/0x620
[ 3799.555463][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3799.555463][   T73]      net_rx_action+0x495/0xbe0
[ 3799.555463][   T73]      __do_softirq+0x1b5/0x7f6
[ 3799.555463][   T73] 
[ 3799.557312][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3799.557312][   T73]      netdev_get_by_index+0x5e/0x80
[ 3799.557312][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3799.557312][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3799.557312][   T73]      ip6_route_add+0x1c/0x140
[ 3799.557312][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3799.557312][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3799.557312][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3799.557312][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3799.557312][   T73]      netlink_rcv_skb+0x130/0x360
[ 3799.557312][   T73]      netlink_unicast+0x449/0x710
[ 3799.557312][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3799.557312][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3799.557312][   T73]      ___sys_sendmsg+0xee/0x170
[ 3799.557312][   T73]      __sys_sendmsg+0xcd/0x170
[ 3799.557312][   T73]      do_syscall_64+0xc6/0x1e0
[ 3799.557312][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3799.557312][   T73] 
[ 3799.559610][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3799.559610][   T73]      netdev_get_by_index+0x5e/0x80
[ 3799.559610][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3799.559610][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3799.559610][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3799.559610][   T73]      ipv6_add_addr+0x411/0x2000
[ 3799.559610][   T73]      inet6_addr_add+0x30e/0xa40
[ 3799.559610][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3799.559610][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3799.559610][   T73]      netlink_rcv_skb+0x130/0x360
[ 3799.559610][   T73]      netlink_unicast+0x449/0x710
[ 3799.559610][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3799.559610][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3799.559610][   T73]      ___sys_sendmsg+0xee/0x170
[ 3799.559610][   T73]      __sys_sendmsg+0xcd/0x170
[ 3799.559610][   T73]      do_syscall_64+0xc6/0x1e0
[ 3799.559610][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3799.559610][   T73] 
[ 3799.561935][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3799.561935][   T73]      netdev_get_by_index+0x5e/0x80
[ 3799.561935][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3799.561935][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3799.561935][   T73]      ip6_route_add+0x1c/0x140
[ 3799.561935][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3799.561935][   T73]      addrconf_add_dev+0xe2/0x170
[ 3799.561935][   T73]      inet6_addr_add+0x12f/0xa40
[ 3799.561935][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3799.561935][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3799.561935][   T73]      netlink_rcv_skb+0x130/0x360
[ 3799.561935][   T73]      netlink_unicast+0x449/0x710
[ 3799.561935][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3799.561935][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3799.561935][   T73]      ___sys_sendmsg+0xee/0x170
[ 3799.561935][   T73]      __sys_sendmsg+0xcd/0x170
[ 3799.561935][   T73]      do_syscall_64+0xc6/0x1e0
[ 3799.561935][   T73] 
[ 3799.564191][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3799.564191][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3799.564191][   T73]      ipv6_find_idev+0x102/0x170
[ 3799.564191][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3799.564191][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3799.564191][   T73]      netlink_rcv_skb+0x130/0x360
[ 3799.564191][   T73]      netlink_unicast+0x449/0x710
[ 3799.564191][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3799.564191][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3799.564191][   T73]      ___sys_sendmsg+0xee/0x170
[ 3799.564191][   T73]      __sys_sendmsg+0xcd/0x170
[ 3799.564191][   T73]      do_syscall_64+0xc6/0x1e0
[ 3799.564191][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3799.564191][   T73] 
[ 3799.565862][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3799.565862][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3799.565862][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3799.565862][   T73]      ipv6_find_idev+0x102/0x170
[ 3799.565862][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3799.565862][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3799.565862][   T73]      netlink_rcv_skb+0x130/0x360
[ 3799.565862][   T73]      netlink_unicast+0x449/0x710
[ 3799.565862][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3799.565862][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3799.565862][   T73]      ___sys_sendmsg+0xee/0x170
[ 3799.565862][   T73]      __sys_sendmsg+0xcd/0x170
[ 3799.565862][   T73]      do_syscall_64+0xc6/0x1e0
[ 3799.565862][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3799.565862][   T73] 
[ 3799.567859][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3799.568155][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3799.568155][   T73]      netdev_get_by_index+0x5e/0x80
[ 3799.568155][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3799.568155][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3799.568155][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3799.568155][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3799.568155][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3799.568155][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3799.568155][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3799.568155][   T73]      addrconf_dad_begin+0x310/0x670
[ 3799.568155][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3799.568155][   T73]      process_one_work+0x84d/0x18a0
[ 3799.568155][   T73]      worker_thread+0x587/0xd30
[ 3799.568155][   T73]      kthread+0x28a/0x350
[ 3799.568155][   T73]      ret_from_fork+0x31/0x70
[ 3799.568155][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3799.568155][   T73] 
[ 3799.570343][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3799.570343][   T73]      netdev_get_by_index+0x5e/0x80
[ 3799.570343][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3799.570343][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3799.570343][   T73]      ip6_route_add+0x1c/0x140
[ 3799.570343][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3799.570343][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3799.570343][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3799.570343][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3799.570343][   T73]      netlink_rcv_skb+0x130/0x360
[ 3799.570343][   T73]      netlink_unicast+0x449/0x710
[ 3799.570343][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3799.570343][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3799.570343][   T73]      ___sys_sendmsg+0xee/0x170
[ 3799.570343][   T73]      __sys_sendmsg+0xcd/0x170
[ 3799.570343][   T73]      do_syscall_64+0xc6/0x1e0
[ 3799.570343][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3799.570343][   T73] 
[ 3799.572711][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3799.572711][   T73]      netdev_get_by_index+0x5e/0x80
[ 3799.572711][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3799.572711][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3799.572711][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3799.572711][   T73]      ipv6_add_addr+0x411/0x2000
[ 3799.572711][   T73]      inet6_addr_add+0x30e/0xa40
[ 3799.572711][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3799.572711][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3799.572711][   T73]      netlink_rcv_skb+0x130/0x360
[ 3799.572711][   T73]      netlink_unicast+0x449/0x710
[ 3799.572711][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3799.572711][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3799.572711][   T73]      ___sys_sendmsg+0xee/0x170
[ 3799.572711][   T73]      __sys_sendmsg+0xcd/0x170
[ 3799.572711][   T73]      do_syscall_64+0xc6/0x1e0
[ 3799.572711][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3799.572711][   T73] 
[ 3799.574930][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3799.574930][   T73]      netdev_get_by_index+0x5e/0x80
[ 3799.574930][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3799.574930][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3799.574930][   T73]      ip6_route_add+0x1c/0x140
[ 3799.574930][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3799.574930][   T73]      addrconf_add_dev+0xe2/0x170
[ 3799.574930][   T73]      inet6_addr_add+0x12f/0xa40
[ 3799.574930][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3799.574930][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3799.574930][   T73]      netlink_rcv_skb+0x130/0x360
[ 3799.574930][   T73]      netlink_unicast+0x449/0x710
[ 3799.574930][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3799.574930][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3799.574930][   T73]      ___sys_sendmsg+0xee/0x170
[ 3799.574930][   T73]      __sys_sendmsg+0xcd/0x170
[ 3799.574930][   T73]      do_syscall_64+0xc6/0x1e0
[ 3799.574930][   T73] 
[ 3799.577212][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3799.577212][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3799.577212][   T73]      ipv6_find_idev+0x102/0x170
[ 3799.577212][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3799.577212][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3799.577212][   T73]      netlink_rcv_skb+0x130/0x360
[ 3799.577212][   T73]      netlink_unicast+0x449/0x710
[ 3799.577212][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3799.577212][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3799.577212][   T73]      ___sys_sendmsg+0xee/0x170
[ 3799.577212][   T73]      __sys_sendmsg+0xcd/0x170
[ 3799.577212][   T73]      do_syscall_64+0xc6/0x1e0
[ 3799.577212][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3799.577212][   T73] 
[ 3799.578974][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3799.578974][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3799.578974][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3799.578974][   T73]      ipv6_find_idev+0x102/0x170
[ 3799.578974][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3799.578974][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3799.578974][   T73]      netlink_rcv_skb+0x130/0x360
[ 3799.578974][   T73]      netlink_unicast+0x449/0x710
[ 3799.578974][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3799.578974][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3799.578974][   T73]      ___sys_sendmsg+0xee/0x170
[ 3799.578974][   T73]      __sys_sendmsg+0xcd/0x170
[ 3799.578974][   T73]      do_syscall_64+0xc6/0x1e0
[ 3799.578974][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3799.578974][   T73] 
[ 3809.631749][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3809.632289][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3809.632289][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3809.632289][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3809.632289][   T73]      fib6_nh_init+0xa22/0x1580
[ 3809.632289][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3809.632289][   T73]      ip6_route_add+0x1c/0x140
[ 3809.632289][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3809.632289][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3809.632289][   T73]      netlink_rcv_skb+0x130/0x360
[ 3809.632289][   T73]      netlink_unicast+0x449/0x710
[ 3809.632289][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3809.632289][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3809.632289][   T73]      ___sys_sendmsg+0xee/0x170
[ 3809.632289][   T73]      __sys_sendmsg+0xcd/0x170
[ 3809.632289][   T73]      do_syscall_64+0xc6/0x1e0
[ 3809.632289][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3809.632289][   T73] 
[ 3809.634282][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3809.634282][   T73]      dst_init+0x84/0x4a0
[ 3809.634282][   T73]      dst_alloc+0x97/0x150
[ 3809.634282][   T73]      ip6_dst_alloc+0x23/0x90
[ 3809.634282][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3809.634282][   T73]      ip6_pol_route+0x56f/0x840
[ 3809.634282][   T73]      fib6_rule_lookup+0x456/0x630
[ 3809.634282][   T73]      ip6_route_input+0x59c/0xa50
[ 3809.634282][   T73]      ipv6_rcv+0x397/0x810
[ 3809.634282][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3809.634282][   T73]      process_backlog+0x101/0x620
[ 3809.634282][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3809.634282][   T73]      net_rx_action+0x495/0xbe0
[ 3809.634282][   T73]      __do_softirq+0x1b5/0x7f6
[ 3809.634282][   T73] 
[ 3809.635978][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3809.635978][   T73]      netdev_get_by_index+0x5e/0x80
[ 3809.635978][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3809.635978][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3809.635978][   T73]      ip6_route_add+0x1c/0x140
[ 3809.635978][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3809.635978][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3809.635978][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3809.635978][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3809.635978][   T73]      netlink_rcv_skb+0x130/0x360
[ 3809.635978][   T73]      netlink_unicast+0x449/0x710
[ 3809.635978][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3809.635978][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3809.635978][   T73]      ___sys_sendmsg+0xee/0x170
[ 3809.635978][   T73]      __sys_sendmsg+0xcd/0x170
[ 3809.635978][   T73]      do_syscall_64+0xc6/0x1e0
[ 3809.635978][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3809.635978][   T73] 
[ 3809.638050][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3809.638050][   T73]      netdev_get_by_index+0x5e/0x80
[ 3809.638050][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3809.638050][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3809.638050][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3809.638050][   T73]      ipv6_add_addr+0x411/0x2000
[ 3809.638050][   T73]      inet6_addr_add+0x30e/0xa40
[ 3809.638050][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3809.638050][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3809.638050][   T73]      netlink_rcv_skb+0x130/0x360
[ 3809.638050][   T73]      netlink_unicast+0x449/0x710
[ 3809.638050][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3809.638050][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3809.638050][   T73]      ___sys_sendmsg+0xee/0x170
[ 3809.638050][   T73]      __sys_sendmsg+0xcd/0x170
[ 3809.638050][   T73]      do_syscall_64+0xc6/0x1e0
[ 3809.638050][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3809.638050][   T73] 
[ 3809.640115][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3809.640115][   T73]      netdev_get_by_index+0x5e/0x80
[ 3809.640115][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3809.640115][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3809.640115][   T73]      ip6_route_add+0x1c/0x140
[ 3809.640115][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3809.640115][   T73]      addrconf_add_dev+0xe2/0x170
[ 3809.640115][   T73]      inet6_addr_add+0x12f/0xa40
[ 3809.640115][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3809.640115][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3809.640115][   T73]      netlink_rcv_skb+0x130/0x360
[ 3809.640115][   T73]      netlink_unicast+0x449/0x710
[ 3809.640115][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3809.640115][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3809.640115][   T73]      ___sys_sendmsg+0xee/0x170
[ 3809.640115][   T73]      __sys_sendmsg+0xcd/0x170
[ 3809.640115][   T73]      do_syscall_64+0xc6/0x1e0
[ 3809.640115][   T73] 
[ 3809.642217][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3809.642217][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3809.642217][   T73]      ipv6_find_idev+0x102/0x170
[ 3809.642217][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3809.642217][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3809.642217][   T73]      netlink_rcv_skb+0x130/0x360
[ 3809.642217][   T73]      netlink_unicast+0x449/0x710
[ 3809.642217][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3809.642217][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3809.642217][   T73]      ___sys_sendmsg+0xee/0x170
[ 3809.642217][   T73]      __sys_sendmsg+0xcd/0x170
[ 3809.642217][   T73]      do_syscall_64+0xc6/0x1e0
[ 3809.642217][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3809.642217][   T73] 
[ 3809.643810][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3809.643810][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3809.643810][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3809.643810][   T73]      ipv6_find_idev+0x102/0x170
[ 3809.643810][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3809.643810][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3809.643810][   T73]      netlink_rcv_skb+0x130/0x360
[ 3809.643810][   T73]      netlink_unicast+0x449/0x710
[ 3809.643810][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3809.643810][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3809.643810][   T73]      ___sys_sendmsg+0xee/0x170
[ 3809.643810][   T73]      __sys_sendmsg+0xcd/0x170
[ 3809.643810][   T73]      do_syscall_64+0xc6/0x1e0
[ 3809.643810][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3809.643810][   T73] 
[ 3809.645588][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3809.645907][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3809.645907][   T73]      netdev_get_by_index+0x5e/0x80
[ 3809.645907][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3809.645907][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3809.645907][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3809.645907][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3809.645907][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3809.645907][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3809.645907][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3809.645907][   T73]      addrconf_dad_begin+0x310/0x670
[ 3809.645907][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3809.645907][   T73]      process_one_work+0x84d/0x18a0
[ 3809.645907][   T73]      worker_thread+0x587/0xd30
[ 3809.645907][   T73]      kthread+0x28a/0x350
[ 3809.645907][   T73]      ret_from_fork+0x31/0x70
[ 3809.645907][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3809.645907][   T73] 
[ 3809.647911][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3809.647911][   T73]      netdev_get_by_index+0x5e/0x80
[ 3809.647911][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3809.647911][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3809.647911][   T73]      ip6_route_add+0x1c/0x140
[ 3809.647911][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3809.647911][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3809.647911][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3809.647911][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3809.647911][   T73]      netlink_rcv_skb+0x130/0x360
[ 3809.647911][   T73]      netlink_unicast+0x449/0x710
[ 3809.647911][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3809.647911][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3809.647911][   T73]      ___sys_sendmsg+0xee/0x170
[ 3809.647911][   T73]      __sys_sendmsg+0xcd/0x170
[ 3809.647911][   T73]      do_syscall_64+0xc6/0x1e0
[ 3809.647911][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3809.647911][   T73] 
[ 3809.649978][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3809.649978][   T73]      netdev_get_by_index+0x5e/0x80
[ 3809.649978][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3809.649978][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3809.649978][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3809.649978][   T73]      ipv6_add_addr+0x411/0x2000
[ 3809.649978][   T73]      inet6_addr_add+0x30e/0xa40
[ 3809.649978][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3809.649978][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3809.649978][   T73]      netlink_rcv_skb+0x130/0x360
[ 3809.649978][   T73]      netlink_unicast+0x449/0x710
[ 3809.649978][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3809.649978][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3809.649978][   T73]      ___sys_sendmsg+0xee/0x170
[ 3809.649978][   T73]      __sys_sendmsg+0xcd/0x170
[ 3809.649978][   T73]      do_syscall_64+0xc6/0x1e0
[ 3809.649978][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3809.649978][   T73] 
[ 3809.652041][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3809.652041][   T73]      netdev_get_by_index+0x5e/0x80
[ 3809.652041][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3809.652041][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3809.652041][   T73]      ip6_route_add+0x1c/0x140
[ 3809.652041][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3809.652041][   T73]      addrconf_add_dev+0xe2/0x170
[ 3809.652041][   T73]      inet6_addr_add+0x12f/0xa40
[ 3809.652041][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3809.652041][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3809.652041][   T73]      netlink_rcv_skb+0x130/0x360
[ 3809.652041][   T73]      netlink_unicast+0x449/0x710
[ 3809.652041][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3809.652041][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3809.652041][   T73]      ___sys_sendmsg+0xee/0x170
[ 3809.652041][   T73]      __sys_sendmsg+0xcd/0x170
[ 3809.652041][   T73]      do_syscall_64+0xc6/0x1e0
[ 3809.652041][   T73] 
[ 3809.654065][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3809.654065][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3809.654065][   T73]      ipv6_find_idev+0x102/0x170
[ 3809.654065][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3809.654065][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3809.654065][   T73]      netlink_rcv_skb+0x130/0x360
[ 3809.654065][   T73]      netlink_unicast+0x449/0x710
[ 3809.654065][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3809.654065][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3809.654065][   T73]      ___sys_sendmsg+0xee/0x170
[ 3809.654065][   T73]      __sys_sendmsg+0xcd/0x170
[ 3809.654065][   T73]      do_syscall_64+0xc6/0x1e0
[ 3809.654065][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3809.654065][   T73] 
[ 3809.655652][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3809.655652][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3809.655652][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3809.655652][   T73]      ipv6_find_idev+0x102/0x170
[ 3809.655652][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3809.655652][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3809.655652][   T73]      netlink_rcv_skb+0x130/0x360
[ 3809.655652][   T73]      netlink_unicast+0x449/0x710
[ 3809.655652][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3809.655652][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3809.655652][   T73]      ___sys_sendmsg+0xee/0x170
[ 3809.655652][   T73]      __sys_sendmsg+0xcd/0x170
[ 3809.655652][   T73]      do_syscall_64+0xc6/0x1e0
[ 3809.655652][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3809.655652][   T73] 
[ 3809.657450][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3809.657744][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3809.657744][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3809.657744][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3809.657744][   T73]      fib6_nh_init+0xa22/0x1580
[ 3809.657744][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3809.657744][   T73]      ip6_route_add+0x1c/0x140
[ 3809.657744][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3809.657744][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3809.657744][   T73]      netlink_rcv_skb+0x130/0x360
[ 3809.657744][   T73]      netlink_unicast+0x449/0x710
[ 3809.657744][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3809.657744][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3809.657744][   T73]      ___sys_sendmsg+0xee/0x170
[ 3809.657744][   T73]      __sys_sendmsg+0xcd/0x170
[ 3809.657744][   T73]      do_syscall_64+0xc6/0x1e0
[ 3809.657744][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3809.657744][   T73] 
[ 3809.659838][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3809.659838][   T73]      dst_init+0x84/0x4a0
[ 3809.659838][   T73]      dst_alloc+0x97/0x150
[ 3809.659838][   T73]      ip6_dst_alloc+0x23/0x90
[ 3809.659838][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3809.659838][   T73]      ip6_pol_route+0x56f/0x840
[ 3809.659838][   T73]      fib6_rule_lookup+0x456/0x630
[ 3809.659838][   T73]      ip6_route_input+0x59c/0xa50
[ 3809.659838][   T73]      ipv6_rcv+0x397/0x810
[ 3809.659838][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3809.659838][   T73]      process_backlog+0x101/0x620
[ 3809.659838][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3809.659838][   T73]      net_rx_action+0x495/0xbe0
[ 3809.659838][   T73]      __do_softirq+0x1b5/0x7f6
[ 3809.659838][   T73] 
[ 3809.661680][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3809.661680][   T73]      netdev_get_by_index+0x5e/0x80
[ 3809.661680][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3809.661680][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3809.661680][   T73]      ip6_route_add+0x1c/0x140
[ 3809.661680][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3809.661680][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3809.661680][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3809.661680][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3809.661680][   T73]      netlink_rcv_skb+0x130/0x360
[ 3809.661680][   T73]      netlink_unicast+0x449/0x710
[ 3809.661680][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3809.661680][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3809.661680][   T73]      ___sys_sendmsg+0xee/0x170
[ 3809.661680][   T73]      __sys_sendmsg+0xcd/0x170
[ 3809.661680][   T73]      do_syscall_64+0xc6/0x1e0
[ 3809.661680][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3809.661680][   T73] 
[ 3809.663889][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3809.663889][   T73]      netdev_get_by_index+0x5e/0x80
[ 3809.663889][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3809.663889][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3809.663889][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3809.663889][   T73]      ipv6_add_addr+0x411/0x2000
[ 3809.663889][   T73]      inet6_addr_add+0x30e/0xa40
[ 3809.663889][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3809.663889][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3809.663889][   T73]      netlink_rcv_skb+0x130/0x360
[ 3809.663889][   T73]      netlink_unicast+0x449/0x710
[ 3809.663889][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3809.663889][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3809.663889][   T73]      ___sys_sendmsg+0xee/0x170
[ 3809.663889][   T73]      __sys_sendmsg+0xcd/0x170
[ 3809.663889][   T73]      do_syscall_64+0xc6/0x1e0
[ 3809.663889][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3809.663889][   T73] 
[ 3809.666097][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3809.666097][   T73]      netdev_get_by_index+0x5e/0x80
[ 3809.666097][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3809.666097][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3809.666097][   T73]      ip6_route_add+0x1c/0x140
[ 3809.666097][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3809.666097][   T73]      addrconf_add_dev+0xe2/0x170
[ 3809.666097][   T73]      inet6_addr_add+0x12f/0xa40
[ 3809.666097][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3809.666097][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3809.666097][   T73]      netlink_rcv_skb+0x130/0x360
[ 3809.666097][   T73]      netlink_unicast+0x449/0x710
[ 3809.666097][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3809.666097][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3809.666097][   T73]      ___sys_sendmsg+0xee/0x170
[ 3809.666097][   T73]      __sys_sendmsg+0xcd/0x170
[ 3809.666097][   T73]      do_syscall_64+0xc6/0x1e0
[ 3809.666097][   T73] 
[ 3809.668297][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3809.668297][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3809.668297][   T73]      ipv6_find_idev+0x102/0x170
[ 3809.668297][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3809.668297][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3809.668297][   T73]      netlink_rcv_skb+0x130/0x360
[ 3809.668297][   T73]      netlink_unicast+0x449/0x710
[ 3809.668297][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3809.668297][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3809.668297][   T73]      ___sys_sendmsg+0xee/0x170
[ 3809.668297][   T73]      __sys_sendmsg+0xcd/0x170
[ 3809.668297][   T73]      do_syscall_64+0xc6/0x1e0
[ 3809.668297][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3809.668297][   T73] 
[ 3809.669950][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3809.669950][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3809.669950][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3809.669950][   T73]      ipv6_find_idev+0x102/0x170
[ 3809.669950][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3809.669950][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3809.669950][   T73]      netlink_rcv_skb+0x130/0x360
[ 3809.669950][   T73]      netlink_unicast+0x449/0x710
[ 3809.669950][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3809.669950][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3809.669950][   T73]      ___sys_sendmsg+0xee/0x170
[ 3809.669950][   T73]      __sys_sendmsg+0xcd/0x170
[ 3809.669950][   T73]      do_syscall_64+0xc6/0x1e0
[ 3809.669950][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3809.669950][   T73] 
[ 3809.671853][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3809.672138][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3809.672138][   T73]      netdev_get_by_index+0x5e/0x80
[ 3809.672138][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3809.672138][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3809.672138][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3809.672138][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3809.672138][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3809.672138][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3809.672138][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3809.672138][   T73]      addrconf_dad_begin+0x310/0x670
[ 3809.672138][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3809.672138][   T73]      process_one_work+0x84d/0x18a0
[ 3809.672138][   T73]      worker_thread+0x587/0xd30
[ 3809.672138][   T73]      kthread+0x28a/0x350
[ 3809.672138][   T73]      ret_from_fork+0x31/0x70
[ 3809.672138][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3809.672138][   T73] 
[ 3809.674244][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3809.674244][   T73]      netdev_get_by_index+0x5e/0x80
[ 3809.674244][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3809.674244][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3809.674244][   T73]      ip6_route_add+0x1c/0x140
[ 3809.674244][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3809.674244][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3809.674244][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3809.674244][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3809.674244][   T73]      netlink_rcv_skb+0x130/0x360
[ 3809.674244][   T73]      netlink_unicast+0x449/0x710
[ 3809.674244][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3809.674244][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3809.674244][   T73]      ___sys_sendmsg+0xee/0x170
[ 3809.674244][   T73]      __sys_sendmsg+0xcd/0x170
[ 3809.674244][   T73]      do_syscall_64+0xc6/0x1e0
[ 3809.674244][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3809.674244][   T73] 
[ 3809.676459][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3809.676459][   T73]      netdev_get_by_index+0x5e/0x80
[ 3809.676459][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3809.676459][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3809.676459][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3809.676459][   T73]      ipv6_add_addr+0x411/0x2000
[ 3809.676459][   T73]      inet6_addr_add+0x30e/0xa40
[ 3809.676459][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3809.676459][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3809.676459][   T73]      netlink_rcv_skb+0x130/0x360
[ 3809.676459][   T73]      netlink_unicast+0x449/0x710
[ 3809.676459][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3809.676459][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3809.676459][   T73]      ___sys_sendmsg+0xee/0x170
[ 3809.676459][   T73]      __sys_sendmsg+0xcd/0x170
[ 3809.676459][   T73]      do_syscall_64+0xc6/0x1e0
[ 3809.676459][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3809.676459][   T73] 
[ 3809.678646][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3809.678646][   T73]      netdev_get_by_index+0x5e/0x80
[ 3809.678646][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3809.678646][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3809.678646][   T73]      ip6_route_add+0x1c/0x140
[ 3809.678646][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3809.678646][   T73]      addrconf_add_dev+0xe2/0x170
[ 3809.678646][   T73]      inet6_addr_add+0x12f/0xa40
[ 3809.678646][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3809.678646][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3809.678646][   T73]      netlink_rcv_skb+0x130/0x360
[ 3809.678646][   T73]      netlink_unicast+0x449/0x710
[ 3809.678646][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3809.678646][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3809.678646][   T73]      ___sys_sendmsg+0xee/0x170
[ 3809.678646][   T73]      __sys_sendmsg+0xcd/0x170
[ 3809.678646][   T73]      do_syscall_64+0xc6/0x1e0
[ 3809.678646][   T73] 
[ 3809.680862][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3809.680862][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3809.680862][   T73]      ipv6_find_idev+0x102/0x170
[ 3809.680862][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3809.680862][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3809.680862][   T73]      netlink_rcv_skb+0x130/0x360
[ 3809.680862][   T73]      netlink_unicast+0x449/0x710
[ 3809.680862][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3809.680862][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3809.680862][   T73]      ___sys_sendmsg+0xee/0x170
[ 3809.680862][   T73]      __sys_sendmsg+0xcd/0x170
[ 3809.680862][   T73]      do_syscall_64+0xc6/0x1e0
[ 3809.680862][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3809.680862][   T73] 
[ 3809.682501][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3809.682501][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3809.682501][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3809.682501][   T73]      ipv6_find_idev+0x102/0x170
[ 3809.682501][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3809.682501][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3809.682501][   T73]      netlink_rcv_skb+0x130/0x360
[ 3809.682501][   T73]      netlink_unicast+0x449/0x710
[ 3809.682501][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3809.682501][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3809.682501][   T73]      ___sys_sendmsg+0xee/0x170
[ 3809.682501][   T73]      __sys_sendmsg+0xcd/0x170
[ 3809.682501][   T73]      do_syscall_64+0xc6/0x1e0
[ 3809.682501][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3809.682501][   T73] 
[ 3819.703779][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3819.704222][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3819.704222][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3819.704222][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3819.704222][   T73]      fib6_nh_init+0xa22/0x1580
[ 3819.704222][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3819.704222][   T73]      ip6_route_add+0x1c/0x140
[ 3819.704222][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3819.704222][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3819.704222][   T73]      netlink_rcv_skb+0x130/0x360
[ 3819.704222][   T73]      netlink_unicast+0x449/0x710
[ 3819.704222][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3819.704222][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3819.704222][   T73]      ___sys_sendmsg+0xee/0x170
[ 3819.704222][   T73]      __sys_sendmsg+0xcd/0x170
[ 3819.704222][   T73]      do_syscall_64+0xc6/0x1e0
[ 3819.704222][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3819.704222][   T73] 
[ 3819.706149][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3819.706149][   T73]      dst_init+0x84/0x4a0
[ 3819.706149][   T73]      dst_alloc+0x97/0x150
[ 3819.706149][   T73]      ip6_dst_alloc+0x23/0x90
[ 3819.706149][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3819.706149][   T73]      ip6_pol_route+0x56f/0x840
[ 3819.706149][   T73]      fib6_rule_lookup+0x456/0x630
[ 3819.706149][   T73]      ip6_route_input+0x59c/0xa50
[ 3819.706149][   T73]      ipv6_rcv+0x397/0x810
[ 3819.706149][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3819.706149][   T73]      process_backlog+0x101/0x620
[ 3819.706149][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3819.706149][   T73]      net_rx_action+0x495/0xbe0
[ 3819.706149][   T73]      __do_softirq+0x1b5/0x7f6
[ 3819.706149][   T73] 
[ 3819.707852][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3819.707852][   T73]      netdev_get_by_index+0x5e/0x80
[ 3819.707852][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3819.707852][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3819.707852][   T73]      ip6_route_add+0x1c/0x140
[ 3819.707852][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3819.707852][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3819.707852][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3819.707852][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3819.707852][   T73]      netlink_rcv_skb+0x130/0x360
[ 3819.707852][   T73]      netlink_unicast+0x449/0x710
[ 3819.707852][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3819.707852][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3819.707852][   T73]      ___sys_sendmsg+0xee/0x170
[ 3819.707852][   T73]      __sys_sendmsg+0xcd/0x170
[ 3819.707852][   T73]      do_syscall_64+0xc6/0x1e0
[ 3819.707852][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3819.707852][   T73] 
[ 3819.709875][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3819.709875][   T73]      netdev_get_by_index+0x5e/0x80
[ 3819.709875][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3819.709875][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3819.709875][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3819.709875][   T73]      ipv6_add_addr+0x411/0x2000
[ 3819.709875][   T73]      inet6_addr_add+0x30e/0xa40
[ 3819.709875][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3819.709875][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3819.709875][   T73]      netlink_rcv_skb+0x130/0x360
[ 3819.709875][   T73]      netlink_unicast+0x449/0x710
[ 3819.709875][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3819.709875][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3819.709875][   T73]      ___sys_sendmsg+0xee/0x170
[ 3819.709875][   T73]      __sys_sendmsg+0xcd/0x170
[ 3819.709875][   T73]      do_syscall_64+0xc6/0x1e0
[ 3819.709875][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3819.709875][   T73] 
[ 3819.711888][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3819.711888][   T73]      netdev_get_by_index+0x5e/0x80
[ 3819.711888][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3819.711888][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3819.711888][   T73]      ip6_route_add+0x1c/0x140
[ 3819.711888][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3819.711888][   T73]      addrconf_add_dev+0xe2/0x170
[ 3819.711888][   T73]      inet6_addr_add+0x12f/0xa40
[ 3819.711888][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3819.711888][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3819.711888][   T73]      netlink_rcv_skb+0x130/0x360
[ 3819.711888][   T73]      netlink_unicast+0x449/0x710
[ 3819.711888][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3819.711888][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3819.711888][   T73]      ___sys_sendmsg+0xee/0x170
[ 3819.711888][   T73]      __sys_sendmsg+0xcd/0x170
[ 3819.711888][   T73]      do_syscall_64+0xc6/0x1e0
[ 3819.711888][   T73] 
[ 3819.713889][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3819.713889][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3819.713889][   T73]      ipv6_find_idev+0x102/0x170
[ 3819.713889][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3819.713889][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3819.713889][   T73]      netlink_rcv_skb+0x130/0x360
[ 3819.713889][   T73]      netlink_unicast+0x449/0x710
[ 3819.713889][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3819.713889][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3819.713889][   T73]      ___sys_sendmsg+0xee/0x170
[ 3819.713889][   T73]      __sys_sendmsg+0xcd/0x170
[ 3819.713889][   T73]      do_syscall_64+0xc6/0x1e0
[ 3819.713889][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3819.713889][   T73] 
[ 3819.715431][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3819.715431][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3819.715431][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3819.715431][   T73]      ipv6_find_idev+0x102/0x170
[ 3819.715431][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3819.715431][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3819.715431][   T73]      netlink_rcv_skb+0x130/0x360
[ 3819.715431][   T73]      netlink_unicast+0x449/0x710
[ 3819.715431][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3819.715431][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3819.715431][   T73]      ___sys_sendmsg+0xee/0x170
[ 3819.715431][   T73]      __sys_sendmsg+0xcd/0x170
[ 3819.715431][   T73]      do_syscall_64+0xc6/0x1e0
[ 3819.715431][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3819.715431][   T73] 
[ 3819.717160][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3819.717437][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3819.717437][   T73]      netdev_get_by_index+0x5e/0x80
[ 3819.717437][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3819.717437][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3819.717437][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3819.717437][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3819.717437][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3819.717437][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3819.717437][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3819.717437][   T73]      addrconf_dad_begin+0x310/0x670
[ 3819.717437][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3819.717437][   T73]      process_one_work+0x84d/0x18a0
[ 3819.717437][   T73]      worker_thread+0x587/0xd30
[ 3819.717437][   T73]      kthread+0x28a/0x350
[ 3819.717437][   T73]      ret_from_fork+0x31/0x70
[ 3819.717437][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3819.717437][   T73] 
[ 3819.719375][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3819.719375][   T73]      netdev_get_by_index+0x5e/0x80
[ 3819.719375][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3819.719375][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3819.719375][   T73]      ip6_route_add+0x1c/0x140
[ 3819.719375][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3819.719375][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3819.719375][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3819.719375][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3819.719375][   T73]      netlink_rcv_skb+0x130/0x360
[ 3819.719375][   T73]      netlink_unicast+0x449/0x710
[ 3819.719375][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3819.719375][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3819.719375][   T73]      ___sys_sendmsg+0xee/0x170
[ 3819.719375][   T73]      __sys_sendmsg+0xcd/0x170
[ 3819.719375][   T73]      do_syscall_64+0xc6/0x1e0
[ 3819.719375][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3819.719375][   T73] 
[ 3819.721383][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3819.721383][   T73]      netdev_get_by_index+0x5e/0x80
[ 3819.721383][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3819.721383][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3819.721383][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3819.721383][   T73]      ipv6_add_addr+0x411/0x2000
[ 3819.721383][   T73]      inet6_addr_add+0x30e/0xa40
[ 3819.721383][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3819.721383][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3819.721383][   T73]      netlink_rcv_skb+0x130/0x360
[ 3819.721383][   T73]      netlink_unicast+0x449/0x710
[ 3819.721383][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3819.721383][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3819.721383][   T73]      ___sys_sendmsg+0xee/0x170
[ 3819.721383][   T73]      __sys_sendmsg+0xcd/0x170
[ 3819.721383][   T73]      do_syscall_64+0xc6/0x1e0
[ 3819.721383][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3819.721383][   T73] 
[ 3819.723390][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3819.723390][   T73]      netdev_get_by_index+0x5e/0x80
[ 3819.723390][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3819.723390][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3819.723390][   T73]      ip6_route_add+0x1c/0x140
[ 3819.723390][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3819.723390][   T73]      addrconf_add_dev+0xe2/0x170
[ 3819.723390][   T73]      inet6_addr_add+0x12f/0xa40
[ 3819.723390][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3819.723390][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3819.723390][   T73]      netlink_rcv_skb+0x130/0x360
[ 3819.723390][   T73]      netlink_unicast+0x449/0x710
[ 3819.723390][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3819.723390][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3819.723390][   T73]      ___sys_sendmsg+0xee/0x170
[ 3819.723390][   T73]      __sys_sendmsg+0xcd/0x170
[ 3819.723390][   T73]      do_syscall_64+0xc6/0x1e0
[ 3819.723390][   T73] 
[ 3819.725372][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3819.725372][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3819.725372][   T73]      ipv6_find_idev+0x102/0x170
[ 3819.725372][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3819.725372][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3819.725372][   T73]      netlink_rcv_skb+0x130/0x360
[ 3819.725372][   T73]      netlink_unicast+0x449/0x710
[ 3819.725372][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3819.725372][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3819.725372][   T73]      ___sys_sendmsg+0xee/0x170
[ 3819.725372][   T73]      __sys_sendmsg+0xcd/0x170
[ 3819.725372][   T73]      do_syscall_64+0xc6/0x1e0
[ 3819.725372][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3819.725372][   T73] 
[ 3819.726943][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3819.726943][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3819.726943][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3819.726943][   T73]      ipv6_find_idev+0x102/0x170
[ 3819.726943][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3819.726943][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3819.726943][   T73]      netlink_rcv_skb+0x130/0x360
[ 3819.726943][   T73]      netlink_unicast+0x449/0x710
[ 3819.726943][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3819.726943][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3819.726943][   T73]      ___sys_sendmsg+0xee/0x170
[ 3819.726943][   T73]      __sys_sendmsg+0xcd/0x170
[ 3819.726943][   T73]      do_syscall_64+0xc6/0x1e0
[ 3819.726943][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3819.726943][   T73] 
[ 3819.728628][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3819.728909][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3819.728909][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3819.728909][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3819.728909][   T73]      fib6_nh_init+0xa22/0x1580
[ 3819.728909][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3819.728909][   T73]      ip6_route_add+0x1c/0x140
[ 3819.728909][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3819.728909][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3819.728909][   T73]      netlink_rcv_skb+0x130/0x360
[ 3819.728909][   T73]      netlink_unicast+0x449/0x710
[ 3819.728909][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3819.728909][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3819.728909][   T73]      ___sys_sendmsg+0xee/0x170
[ 3819.728909][   T73]      __sys_sendmsg+0xcd/0x170
[ 3819.728909][   T73]      do_syscall_64+0xc6/0x1e0
[ 3819.728909][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3819.728909][   T73] 
[ 3819.731018][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3819.731018][   T73]      dst_init+0x84/0x4a0
[ 3819.731018][   T73]      dst_alloc+0x97/0x150
[ 3819.731018][   T73]      ip6_dst_alloc+0x23/0x90
[ 3819.731018][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3819.731018][   T73]      ip6_pol_route+0x56f/0x840
[ 3819.731018][   T73]      fib6_rule_lookup+0x456/0x630
[ 3819.731018][   T73]      ip6_route_input+0x59c/0xa50
[ 3819.731018][   T73]      ipv6_rcv+0x397/0x810
[ 3819.731018][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3819.731018][   T73]      process_backlog+0x101/0x620
[ 3819.731018][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3819.731018][   T73]      net_rx_action+0x495/0xbe0
[ 3819.731018][   T73]      __do_softirq+0x1b5/0x7f6
[ 3819.731018][   T73] 
[ 3819.732921][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3819.732921][   T73]      netdev_get_by_index+0x5e/0x80
[ 3819.732921][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3819.732921][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3819.732921][   T73]      ip6_route_add+0x1c/0x140
[ 3819.732921][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3819.732921][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3819.732921][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3819.732921][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3819.732921][   T73]      netlink_rcv_skb+0x130/0x360
[ 3819.732921][   T73]      netlink_unicast+0x449/0x710
[ 3819.732921][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3819.732921][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3819.732921][   T73]      ___sys_sendmsg+0xee/0x170
[ 3819.732921][   T73]      __sys_sendmsg+0xcd/0x170
[ 3819.732921][   T73]      do_syscall_64+0xc6/0x1e0
[ 3819.732921][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3819.732921][   T73] 
[ 3819.735182][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3819.735182][   T73]      netdev_get_by_index+0x5e/0x80
[ 3819.735182][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3819.735182][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3819.735182][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3819.735182][   T73]      ipv6_add_addr+0x411/0x2000
[ 3819.735182][   T73]      inet6_addr_add+0x30e/0xa40
[ 3819.735182][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3819.735182][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3819.735182][   T73]      netlink_rcv_skb+0x130/0x360
[ 3819.735182][   T73]      netlink_unicast+0x449/0x710
[ 3819.735182][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3819.735182][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3819.735182][   T73]      ___sys_sendmsg+0xee/0x170
[ 3819.735182][   T73]      __sys_sendmsg+0xcd/0x170
[ 3819.735182][   T73]      do_syscall_64+0xc6/0x1e0
[ 3819.735182][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3819.735182][   T73] 
[ 3819.737393][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3819.737393][   T73]      netdev_get_by_index+0x5e/0x80
[ 3819.737393][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3819.737393][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3819.737393][   T73]      ip6_route_add+0x1c/0x140
[ 3819.737393][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3819.737393][   T73]      addrconf_add_dev+0xe2/0x170
[ 3819.737393][   T73]      inet6_addr_add+0x12f/0xa40
[ 3819.737393][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3819.737393][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3819.737393][   T73]      netlink_rcv_skb+0x130/0x360
[ 3819.737393][   T73]      netlink_unicast+0x449/0x710
[ 3819.737393][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3819.737393][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3819.737393][   T73]      ___sys_sendmsg+0xee/0x170
[ 3819.737393][   T73]      __sys_sendmsg+0xcd/0x170
[ 3819.737393][   T73]      do_syscall_64+0xc6/0x1e0
[ 3819.737393][   T73] 
[ 3819.739563][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3819.739563][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3819.739563][   T73]      ipv6_find_idev+0x102/0x170
[ 3819.739563][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3819.739563][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3819.739563][   T73]      netlink_rcv_skb+0x130/0x360
[ 3819.739563][   T73]      netlink_unicast+0x449/0x710
[ 3819.739563][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3819.739563][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3819.739563][   T73]      ___sys_sendmsg+0xee/0x170
[ 3819.739563][   T73]      __sys_sendmsg+0xcd/0x170
[ 3819.739563][   T73]      do_syscall_64+0xc6/0x1e0
[ 3819.739563][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3819.739563][   T73] 
[ 3819.741362][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3819.741362][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3819.741362][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3819.741362][   T73]      ipv6_find_idev+0x102/0x170
[ 3819.741362][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3819.741362][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3819.741362][   T73]      netlink_rcv_skb+0x130/0x360
[ 3819.741362][   T73]      netlink_unicast+0x449/0x710
[ 3819.741362][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3819.741362][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3819.741362][   T73]      ___sys_sendmsg+0xee/0x170
[ 3819.741362][   T73]      __sys_sendmsg+0xcd/0x170
[ 3819.741362][   T73]      do_syscall_64+0xc6/0x1e0
[ 3819.741362][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3819.741362][   T73] 
[ 3819.743242][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3819.743593][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3819.743593][   T73]      netdev_get_by_index+0x5e/0x80
[ 3819.743593][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3819.743593][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3819.743593][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3819.743593][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3819.743593][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3819.743593][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3819.743593][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3819.743593][   T73]      addrconf_dad_begin+0x310/0x670
[ 3819.743593][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3819.743593][   T73]      process_one_work+0x84d/0x18a0
[ 3819.743593][   T73]      worker_thread+0x587/0xd30
[ 3819.743593][   T73]      kthread+0x28a/0x350
[ 3819.743593][   T73]      ret_from_fork+0x31/0x70
[ 3819.743593][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3819.743593][   T73] 
[ 3819.745635][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3819.745635][   T73]      netdev_get_by_index+0x5e/0x80
[ 3819.745635][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3819.745635][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3819.745635][   T73]      ip6_route_add+0x1c/0x140
[ 3819.745635][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3819.745635][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3819.745635][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3819.745635][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3819.745635][   T73]      netlink_rcv_skb+0x130/0x360
[ 3819.745635][   T73]      netlink_unicast+0x449/0x710
[ 3819.745635][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3819.745635][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3819.745635][   T73]      ___sys_sendmsg+0xee/0x170
[ 3819.745635][   T73]      __sys_sendmsg+0xcd/0x170
[ 3819.745635][   T73]      do_syscall_64+0xc6/0x1e0
[ 3819.745635][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3819.745635][   T73] 
[ 3819.747914][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3819.747914][   T73]      netdev_get_by_index+0x5e/0x80
[ 3819.747914][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3819.747914][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3819.747914][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3819.747914][   T73]      ipv6_add_addr+0x411/0x2000
[ 3819.747914][   T73]      inet6_addr_add+0x30e/0xa40
[ 3819.747914][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3819.747914][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3819.747914][   T73]      netlink_rcv_skb+0x130/0x360
[ 3819.747914][   T73]      netlink_unicast+0x449/0x710
[ 3819.747914][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3819.747914][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3819.747914][   T73]      ___sys_sendmsg+0xee/0x170
[ 3819.747914][   T73]      __sys_sendmsg+0xcd/0x170
[ 3819.747914][   T73]      do_syscall_64+0xc6/0x1e0
[ 3819.747914][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3819.747914][   T73] 
[ 3819.750169][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3819.750169][   T73]      netdev_get_by_index+0x5e/0x80
[ 3819.750169][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3819.750169][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3819.750169][   T73]      ip6_route_add+0x1c/0x140
[ 3819.750169][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3819.750169][   T73]      addrconf_add_dev+0xe2/0x170
[ 3819.750169][   T73]      inet6_addr_add+0x12f/0xa40
[ 3819.750169][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3819.750169][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3819.750169][   T73]      netlink_rcv_skb+0x130/0x360
[ 3819.750169][   T73]      netlink_unicast+0x449/0x710
[ 3819.750169][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3819.750169][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3819.750169][   T73]      ___sys_sendmsg+0xee/0x170
[ 3819.750169][   T73]      __sys_sendmsg+0xcd/0x170
[ 3819.750169][   T73]      do_syscall_64+0xc6/0x1e0
[ 3819.750169][   T73] 
[ 3819.752447][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3819.752447][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3819.752447][   T73]      ipv6_find_idev+0x102/0x170
[ 3819.752447][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3819.752447][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3819.752447][   T73]      netlink_rcv_skb+0x130/0x360
[ 3819.752447][   T73]      netlink_unicast+0x449/0x710
[ 3819.752447][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3819.752447][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3819.752447][   T73]      ___sys_sendmsg+0xee/0x170
[ 3819.752447][   T73]      __sys_sendmsg+0xcd/0x170
[ 3819.752447][   T73]      do_syscall_64+0xc6/0x1e0
[ 3819.752447][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3819.752447][   T73] 
[ 3819.754184][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3819.754184][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3819.754184][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3819.754184][   T73]      ipv6_find_idev+0x102/0x170
[ 3819.754184][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3819.754184][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3819.754184][   T73]      netlink_rcv_skb+0x130/0x360
[ 3819.754184][   T73]      netlink_unicast+0x449/0x710
[ 3819.754184][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3819.754184][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3819.754184][   T73]      ___sys_sendmsg+0xee/0x170
[ 3819.754184][   T73]      __sys_sendmsg+0xcd/0x170
[ 3819.754184][   T73]      do_syscall_64+0xc6/0x1e0
[ 3819.754184][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3819.754184][   T73] 
[ 3829.839858][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3829.840357][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3829.840357][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3829.840357][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3829.840357][   T73]      fib6_nh_init+0xa22/0x1580
[ 3829.840357][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3829.840357][   T73]      ip6_route_add+0x1c/0x140
[ 3829.840357][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3829.840357][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3829.840357][   T73]      netlink_rcv_skb+0x130/0x360
[ 3829.840357][   T73]      netlink_unicast+0x449/0x710
[ 3829.840357][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3829.840357][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3829.840357][   T73]      ___sys_sendmsg+0xee/0x170
[ 3829.840357][   T73]      __sys_sendmsg+0xcd/0x170
[ 3829.840357][   T73]      do_syscall_64+0xc6/0x1e0
[ 3829.840357][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3829.840357][   T73] 
[ 3829.842241][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3829.842241][   T73]      dst_init+0x84/0x4a0
[ 3829.842241][   T73]      dst_alloc+0x97/0x150
[ 3829.842241][   T73]      ip6_dst_alloc+0x23/0x90
[ 3829.842241][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3829.842241][   T73]      ip6_pol_route+0x56f/0x840
[ 3829.842241][   T73]      fib6_rule_lookup+0x456/0x630
[ 3829.842241][   T73]      ip6_route_input+0x59c/0xa50
[ 3829.842241][   T73]      ipv6_rcv+0x397/0x810
[ 3829.842241][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3829.842241][   T73]      process_backlog+0x101/0x620
[ 3829.842241][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3829.842241][   T73]      net_rx_action+0x495/0xbe0
[ 3829.842241][   T73]      __do_softirq+0x1b5/0x7f6
[ 3829.842241][   T73] 
[ 3829.843878][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3829.843878][   T73]      netdev_get_by_index+0x5e/0x80
[ 3829.843878][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3829.843878][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3829.843878][   T73]      ip6_route_add+0x1c/0x140
[ 3829.843878][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3829.843878][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3829.843878][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3829.843878][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3829.843878][   T73]      netlink_rcv_skb+0x130/0x360
[ 3829.843878][   T73]      netlink_unicast+0x449/0x710
[ 3829.843878][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3829.843878][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3829.843878][   T73]      ___sys_sendmsg+0xee/0x170
[ 3829.843878][   T73]      __sys_sendmsg+0xcd/0x170
[ 3829.843878][   T73]      do_syscall_64+0xc6/0x1e0
[ 3829.843878][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3829.843878][   T73] 
[ 3829.845882][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3829.845882][   T73]      netdev_get_by_index+0x5e/0x80
[ 3829.845882][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3829.845882][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3829.845882][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3829.845882][   T73]      ipv6_add_addr+0x411/0x2000
[ 3829.845882][   T73]      inet6_addr_add+0x30e/0xa40
[ 3829.845882][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3829.845882][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3829.845882][   T73]      netlink_rcv_skb+0x130/0x360
[ 3829.845882][   T73]      netlink_unicast+0x449/0x710
[ 3829.845882][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3829.845882][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3829.845882][   T73]      ___sys_sendmsg+0xee/0x170
[ 3829.845882][   T73]      __sys_sendmsg+0xcd/0x170
[ 3829.845882][   T73]      do_syscall_64+0xc6/0x1e0
[ 3829.845882][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3829.845882][   T73] 
[ 3829.847888][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3829.847888][   T73]      netdev_get_by_index+0x5e/0x80
[ 3829.847888][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3829.847888][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3829.847888][   T73]      ip6_route_add+0x1c/0x140
[ 3829.847888][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3829.847888][   T73]      addrconf_add_dev+0xe2/0x170
[ 3829.847888][   T73]      inet6_addr_add+0x12f/0xa40
[ 3829.847888][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3829.847888][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3829.847888][   T73]      netlink_rcv_skb+0x130/0x360
[ 3829.847888][   T73]      netlink_unicast+0x449/0x710
[ 3829.847888][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3829.847888][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3829.847888][   T73]      ___sys_sendmsg+0xee/0x170
[ 3829.847888][   T73]      __sys_sendmsg+0xcd/0x170
[ 3829.847888][   T73]      do_syscall_64+0xc6/0x1e0
[ 3829.847888][   T73] 
[ 3829.849847][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3829.849847][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3829.849847][   T73]      ipv6_find_idev+0x102/0x170
[ 3829.849847][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3829.849847][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3829.849847][   T73]      netlink_rcv_skb+0x130/0x360
[ 3829.849847][   T73]      netlink_unicast+0x449/0x710
[ 3829.849847][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3829.849847][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3829.849847][   T73]      ___sys_sendmsg+0xee/0x170
[ 3829.849847][   T73]      __sys_sendmsg+0xcd/0x170
[ 3829.849847][   T73]      do_syscall_64+0xc6/0x1e0
[ 3829.849847][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3829.849847][   T73] 
[ 3829.851380][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3829.851380][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3829.851380][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3829.851380][   T73]      ipv6_find_idev+0x102/0x170
[ 3829.851380][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3829.851380][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3829.851380][   T73]      netlink_rcv_skb+0x130/0x360
[ 3829.851380][   T73]      netlink_unicast+0x449/0x710
[ 3829.851380][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3829.851380][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3829.851380][   T73]      ___sys_sendmsg+0xee/0x170
[ 3829.851380][   T73]      __sys_sendmsg+0xcd/0x170
[ 3829.851380][   T73]      do_syscall_64+0xc6/0x1e0
[ 3829.851380][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3829.851380][   T73] 
[ 3829.853080][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3829.853368][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3829.853368][   T73]      netdev_get_by_index+0x5e/0x80
[ 3829.853368][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3829.853368][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3829.853368][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3829.853368][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3829.853368][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3829.853368][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3829.853368][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3829.853368][   T73]      addrconf_dad_begin+0x310/0x670
[ 3829.853368][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3829.853368][   T73]      process_one_work+0x84d/0x18a0
[ 3829.853368][   T73]      worker_thread+0x587/0xd30
[ 3829.853368][   T73]      kthread+0x28a/0x350
[ 3829.853368][   T73]      ret_from_fork+0x31/0x70
[ 3829.853368][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3829.853368][   T73] 
[ 3829.855267][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3829.855267][   T73]      netdev_get_by_index+0x5e/0x80
[ 3829.855267][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3829.855267][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3829.855267][   T73]      ip6_route_add+0x1c/0x140
[ 3829.855267][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3829.855267][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3829.855267][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3829.855267][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3829.855267][   T73]      netlink_rcv_skb+0x130/0x360
[ 3829.855267][   T73]      netlink_unicast+0x449/0x710
[ 3829.855267][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3829.855267][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3829.855267][   T73]      ___sys_sendmsg+0xee/0x170
[ 3829.855267][   T73]      __sys_sendmsg+0xcd/0x170
[ 3829.855267][   T73]      do_syscall_64+0xc6/0x1e0
[ 3829.855267][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3829.855267][   T73] 
[ 3829.857267][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3829.857267][   T73]      netdev_get_by_index+0x5e/0x80
[ 3829.857267][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3829.857267][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3829.857267][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3829.857267][   T73]      ipv6_add_addr+0x411/0x2000
[ 3829.857267][   T73]      inet6_addr_add+0x30e/0xa40
[ 3829.857267][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3829.857267][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3829.857267][   T73]      netlink_rcv_skb+0x130/0x360
[ 3829.857267][   T73]      netlink_unicast+0x449/0x710
[ 3829.857267][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3829.857267][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3829.857267][   T73]      ___sys_sendmsg+0xee/0x170
[ 3829.857267][   T73]      __sys_sendmsg+0xcd/0x170
[ 3829.857267][   T73]      do_syscall_64+0xc6/0x1e0
[ 3829.857267][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3829.857267][   T73] 
[ 3829.859251][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3829.859251][   T73]      netdev_get_by_index+0x5e/0x80
[ 3829.859251][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3829.859251][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3829.859251][   T73]      ip6_route_add+0x1c/0x140
[ 3829.859251][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3829.859251][   T73]      addrconf_add_dev+0xe2/0x170
[ 3829.859251][   T73]      inet6_addr_add+0x12f/0xa40
[ 3829.859251][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3829.859251][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3829.859251][   T73]      netlink_rcv_skb+0x130/0x360
[ 3829.859251][   T73]      netlink_unicast+0x449/0x710
[ 3829.859251][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3829.859251][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3829.859251][   T73]      ___sys_sendmsg+0xee/0x170
[ 3829.859251][   T73]      __sys_sendmsg+0xcd/0x170
[ 3829.859251][   T73]      do_syscall_64+0xc6/0x1e0
[ 3829.859251][   T73] 
[ 3829.861236][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3829.861236][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3829.861236][   T73]      ipv6_find_idev+0x102/0x170
[ 3829.861236][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3829.861236][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3829.861236][   T73]      netlink_rcv_skb+0x130/0x360
[ 3829.861236][   T73]      netlink_unicast+0x449/0x710
[ 3829.861236][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3829.861236][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3829.861236][   T73]      ___sys_sendmsg+0xee/0x170
[ 3829.861236][   T73]      __sys_sendmsg+0xcd/0x170
[ 3829.861236][   T73]      do_syscall_64+0xc6/0x1e0
[ 3829.861236][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3829.861236][   T73] 
[ 3829.862784][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3829.862784][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3829.862784][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3829.862784][   T73]      ipv6_find_idev+0x102/0x170
[ 3829.862784][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3829.862784][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3829.862784][   T73]      netlink_rcv_skb+0x130/0x360
[ 3829.862784][   T73]      netlink_unicast+0x449/0x710
[ 3829.862784][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3829.862784][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3829.862784][   T73]      ___sys_sendmsg+0xee/0x170
[ 3829.862784][   T73]      __sys_sendmsg+0xcd/0x170
[ 3829.862784][   T73]      do_syscall_64+0xc6/0x1e0
[ 3829.862784][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3829.862784][   T73] 
[ 3829.864490][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3829.864805][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3829.864805][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3829.864805][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3829.864805][   T73]      fib6_nh_init+0xa22/0x1580
[ 3829.864805][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3829.864805][   T73]      ip6_route_add+0x1c/0x140
[ 3829.864805][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3829.864805][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3829.864805][   T73]      netlink_rcv_skb+0x130/0x360
[ 3829.864805][   T73]      netlink_unicast+0x449/0x710
[ 3829.864805][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3829.864805][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3829.864805][   T73]      ___sys_sendmsg+0xee/0x170
[ 3829.864805][   T73]      __sys_sendmsg+0xcd/0x170
[ 3829.864805][   T73]      do_syscall_64+0xc6/0x1e0
[ 3829.864805][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3829.864805][   T73] 
[ 3829.866885][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3829.866885][   T73]      dst_init+0x84/0x4a0
[ 3829.866885][   T73]      dst_alloc+0x97/0x150
[ 3829.866885][   T73]      ip6_dst_alloc+0x23/0x90
[ 3829.866885][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3829.866885][   T73]      ip6_pol_route+0x56f/0x840
[ 3829.866885][   T73]      fib6_rule_lookup+0x456/0x630
[ 3829.866885][   T73]      ip6_route_input+0x59c/0xa50
[ 3829.866885][   T73]      ipv6_rcv+0x397/0x810
[ 3829.866885][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3829.866885][   T73]      process_backlog+0x101/0x620
[ 3829.866885][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3829.866885][   T73]      net_rx_action+0x495/0xbe0
[ 3829.866885][   T73]      __do_softirq+0x1b5/0x7f6
[ 3829.866885][   T73] 
[ 3829.868692][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3829.868692][   T73]      netdev_get_by_index+0x5e/0x80
[ 3829.868692][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3829.868692][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3829.868692][   T73]      ip6_route_add+0x1c/0x140
[ 3829.868692][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3829.868692][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3829.868692][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3829.868692][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3829.868692][   T73]      netlink_rcv_skb+0x130/0x360
[ 3829.868692][   T73]      netlink_unicast+0x449/0x710
[ 3829.868692][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3829.868692][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3829.868692][   T73]      ___sys_sendmsg+0xee/0x170
[ 3829.868692][   T73]      __sys_sendmsg+0xcd/0x170
[ 3829.868692][   T73]      do_syscall_64+0xc6/0x1e0
[ 3829.868692][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3829.868692][   T73] 
[ 3829.870928][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3829.870928][   T73]      netdev_get_by_index+0x5e/0x80
[ 3829.870928][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3829.870928][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3829.870928][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3829.870928][   T73]      ipv6_add_addr+0x411/0x2000
[ 3829.870928][   T73]      inet6_addr_add+0x30e/0xa40
[ 3829.870928][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3829.870928][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3829.870928][   T73]      netlink_rcv_skb+0x130/0x360
[ 3829.870928][   T73]      netlink_unicast+0x449/0x710
[ 3829.870928][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3829.870928][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3829.870928][   T73]      ___sys_sendmsg+0xee/0x170
[ 3829.870928][   T73]      __sys_sendmsg+0xcd/0x170
[ 3829.870928][   T73]      do_syscall_64+0xc6/0x1e0
[ 3829.870928][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3829.870928][   T73] 
[ 3829.873217][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3829.873217][   T73]      netdev_get_by_index+0x5e/0x80
[ 3829.873217][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3829.873217][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3829.873217][   T73]      ip6_route_add+0x1c/0x140
[ 3829.873217][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3829.873217][   T73]      addrconf_add_dev+0xe2/0x170
[ 3829.873217][   T73]      inet6_addr_add+0x12f/0xa40
[ 3829.873217][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3829.873217][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3829.873217][   T73]      netlink_rcv_skb+0x130/0x360
[ 3829.873217][   T73]      netlink_unicast+0x449/0x710
[ 3829.873217][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3829.873217][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3829.873217][   T73]      ___sys_sendmsg+0xee/0x170
[ 3829.873217][   T73]      __sys_sendmsg+0xcd/0x170
[ 3829.873217][   T73]      do_syscall_64+0xc6/0x1e0
[ 3829.873217][   T73] 
[ 3829.875346][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3829.875346][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3829.875346][   T73]      ipv6_find_idev+0x102/0x170
[ 3829.875346][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3829.875346][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3829.875346][   T73]      netlink_rcv_skb+0x130/0x360
[ 3829.875346][   T73]      netlink_unicast+0x449/0x710
[ 3829.875346][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3829.875346][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3829.875346][   T73]      ___sys_sendmsg+0xee/0x170
[ 3829.875346][   T73]      __sys_sendmsg+0xcd/0x170
[ 3829.875346][   T73]      do_syscall_64+0xc6/0x1e0
[ 3829.875346][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3829.875346][   T73] 
[ 3829.877063][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3829.877063][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3829.877063][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3829.877063][   T73]      ipv6_find_idev+0x102/0x170
[ 3829.877063][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3829.877063][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3829.877063][   T73]      netlink_rcv_skb+0x130/0x360
[ 3829.877063][   T73]      netlink_unicast+0x449/0x710
[ 3829.877063][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3829.877063][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3829.877063][   T73]      ___sys_sendmsg+0xee/0x170
[ 3829.877063][   T73]      __sys_sendmsg+0xcd/0x170
[ 3829.877063][   T73]      do_syscall_64+0xc6/0x1e0
[ 3829.877063][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3829.877063][   T73] 
[ 3829.879014][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3829.879297][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3829.879297][   T73]      netdev_get_by_index+0x5e/0x80
[ 3829.879297][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3829.879297][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3829.879297][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3829.879297][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3829.879297][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3829.879297][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3829.879297][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3829.879297][   T73]      addrconf_dad_begin+0x310/0x670
[ 3829.879297][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3829.879297][   T73]      process_one_work+0x84d/0x18a0
[ 3829.879297][   T73]      worker_thread+0x587/0xd30
[ 3829.879297][   T73]      kthread+0x28a/0x350
[ 3829.879297][   T73]      ret_from_fork+0x31/0x70
[ 3829.879297][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3829.879297][   T73] 
[ 3829.881445][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3829.881445][   T73]      netdev_get_by_index+0x5e/0x80
[ 3829.881445][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3829.881445][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3829.881445][   T73]      ip6_route_add+0x1c/0x140
[ 3829.881445][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3829.881445][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3829.881445][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3829.881445][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3829.881445][   T73]      netlink_rcv_skb+0x130/0x360
[ 3829.881445][   T73]      netlink_unicast+0x449/0x710
[ 3829.881445][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3829.881445][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3829.881445][   T73]      ___sys_sendmsg+0xee/0x170
[ 3829.881445][   T73]      __sys_sendmsg+0xcd/0x170
[ 3829.881445][   T73]      do_syscall_64+0xc6/0x1e0
[ 3829.881445][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3829.881445][   T73] 
[ 3829.883674][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3829.883674][   T73]      netdev_get_by_index+0x5e/0x80
[ 3829.883674][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3829.883674][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3829.883674][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3829.883674][   T73]      ipv6_add_addr+0x411/0x2000
[ 3829.883674][   T73]      inet6_addr_add+0x30e/0xa40
[ 3829.883674][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3829.883674][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3829.883674][   T73]      netlink_rcv_skb+0x130/0x360
[ 3829.883674][   T73]      netlink_unicast+0x449/0x710
[ 3829.883674][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3829.883674][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3829.883674][   T73]      ___sys_sendmsg+0xee/0x170
[ 3829.883674][   T73]      __sys_sendmsg+0xcd/0x170
[ 3829.883674][   T73]      do_syscall_64+0xc6/0x1e0
[ 3829.883674][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3829.883674][   T73] 
[ 3829.885904][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3829.885904][   T73]      netdev_get_by_index+0x5e/0x80
[ 3829.885904][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3829.885904][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3829.885904][   T73]      ip6_route_add+0x1c/0x140
[ 3829.885904][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3829.885904][   T73]      addrconf_add_dev+0xe2/0x170
[ 3829.885904][   T73]      inet6_addr_add+0x12f/0xa40
[ 3829.885904][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3829.885904][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3829.885904][   T73]      netlink_rcv_skb+0x130/0x360
[ 3829.885904][   T73]      netlink_unicast+0x449/0x710
[ 3829.885904][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3829.885904][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3829.885904][   T73]      ___sys_sendmsg+0xee/0x170
[ 3829.885904][   T73]      __sys_sendmsg+0xcd/0x170
[ 3829.885904][   T73]      do_syscall_64+0xc6/0x1e0
[ 3829.885904][   T73] 
[ 3829.888122][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3829.888122][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3829.888122][   T73]      ipv6_find_idev+0x102/0x170
[ 3829.888122][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3829.888122][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3829.888122][   T73]      netlink_rcv_skb+0x130/0x360
[ 3829.888122][   T73]      netlink_unicast+0x449/0x710
[ 3829.888122][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3829.888122][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3829.888122][   T73]      ___sys_sendmsg+0xee/0x170
[ 3829.888122][   T73]      __sys_sendmsg+0xcd/0x170
[ 3829.888122][   T73]      do_syscall_64+0xc6/0x1e0
[ 3829.888122][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3829.888122][   T73] 
[ 3829.889834][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3829.889834][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3829.889834][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3829.889834][   T73]      ipv6_find_idev+0x102/0x170
[ 3829.889834][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3829.889834][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3829.889834][   T73]      netlink_rcv_skb+0x130/0x360
[ 3829.889834][   T73]      netlink_unicast+0x449/0x710
[ 3829.889834][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3829.889834][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3829.889834][   T73]      ___sys_sendmsg+0xee/0x170
[ 3829.889834][   T73]      __sys_sendmsg+0xcd/0x170
[ 3829.889834][   T73]      do_syscall_64+0xc6/0x1e0
[ 3829.889834][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3829.889834][   T73] 
[ 3839.895845][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3839.896325][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3839.896325][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3839.896325][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3839.896325][   T73]      fib6_nh_init+0xa22/0x1580
[ 3839.896325][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3839.896325][   T73]      ip6_route_add+0x1c/0x140
[ 3839.896325][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3839.896325][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3839.896325][   T73]      netlink_rcv_skb+0x130/0x360
[ 3839.896325][   T73]      netlink_unicast+0x449/0x710
[ 3839.896325][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3839.896325][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3839.896325][   T73]      ___sys_sendmsg+0xee/0x170
[ 3839.896325][   T73]      __sys_sendmsg+0xcd/0x170
[ 3839.896325][   T73]      do_syscall_64+0xc6/0x1e0
[ 3839.896325][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3839.896325][   T73] 
[ 3839.898236][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3839.898236][   T73]      dst_init+0x84/0x4a0
[ 3839.898236][   T73]      dst_alloc+0x97/0x150
[ 3839.898236][   T73]      ip6_dst_alloc+0x23/0x90
[ 3839.898236][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3839.898236][   T73]      ip6_pol_route+0x56f/0x840
[ 3839.898236][   T73]      fib6_rule_lookup+0x456/0x630
[ 3839.898236][   T73]      ip6_route_input+0x59c/0xa50
[ 3839.898236][   T73]      ipv6_rcv+0x397/0x810
[ 3839.898236][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3839.898236][   T73]      process_backlog+0x101/0x620
[ 3839.898236][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3839.898236][   T73]      net_rx_action+0x495/0xbe0
[ 3839.898236][   T73]      __do_softirq+0x1b5/0x7f6
[ 3839.898236][   T73] 
[ 3839.899877][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3839.899877][   T73]      netdev_get_by_index+0x5e/0x80
[ 3839.899877][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3839.899877][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3839.899877][   T73]      ip6_route_add+0x1c/0x140
[ 3839.899877][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3839.899877][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3839.899877][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3839.899877][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3839.899877][   T73]      netlink_rcv_skb+0x130/0x360
[ 3839.899877][   T73]      netlink_unicast+0x449/0x710
[ 3839.899877][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3839.899877][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3839.899877][   T73]      ___sys_sendmsg+0xee/0x170
[ 3839.899877][   T73]      __sys_sendmsg+0xcd/0x170
[ 3839.899877][   T73]      do_syscall_64+0xc6/0x1e0
[ 3839.899877][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3839.899877][   T73] 
[ 3839.901894][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3839.901894][   T73]      netdev_get_by_index+0x5e/0x80
[ 3839.901894][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3839.901894][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3839.901894][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3839.901894][   T73]      ipv6_add_addr+0x411/0x2000
[ 3839.901894][   T73]      inet6_addr_add+0x30e/0xa40
[ 3839.901894][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3839.901894][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3839.901894][   T73]      netlink_rcv_skb+0x130/0x360
[ 3839.901894][   T73]      netlink_unicast+0x449/0x710
[ 3839.901894][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3839.901894][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3839.901894][   T73]      ___sys_sendmsg+0xee/0x170
[ 3839.901894][   T73]      __sys_sendmsg+0xcd/0x170
[ 3839.901894][   T73]      do_syscall_64+0xc6/0x1e0
[ 3839.901894][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3839.901894][   T73] 
[ 3839.903880][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3839.903880][   T73]      netdev_get_by_index+0x5e/0x80
[ 3839.903880][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3839.903880][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3839.903880][   T73]      ip6_route_add+0x1c/0x140
[ 3839.903880][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3839.903880][   T73]      addrconf_add_dev+0xe2/0x170
[ 3839.903880][   T73]      inet6_addr_add+0x12f/0xa40
[ 3839.903880][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3839.903880][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3839.903880][   T73]      netlink_rcv_skb+0x130/0x360
[ 3839.903880][   T73]      netlink_unicast+0x449/0x710
[ 3839.903880][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3839.903880][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3839.903880][   T73]      ___sys_sendmsg+0xee/0x170
[ 3839.903880][   T73]      __sys_sendmsg+0xcd/0x170
[ 3839.903880][   T73]      do_syscall_64+0xc6/0x1e0
[ 3839.903880][   T73] 
[ 3839.905828][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3839.905828][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3839.905828][   T73]      ipv6_find_idev+0x102/0x170
[ 3839.905828][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3839.905828][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3839.905828][   T73]      netlink_rcv_skb+0x130/0x360
[ 3839.905828][   T73]      netlink_unicast+0x449/0x710
[ 3839.905828][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3839.905828][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3839.905828][   T73]      ___sys_sendmsg+0xee/0x170
[ 3839.905828][   T73]      __sys_sendmsg+0xcd/0x170
[ 3839.905828][   T73]      do_syscall_64+0xc6/0x1e0
[ 3839.905828][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3839.905828][   T73] 
[ 3839.907367][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3839.907367][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3839.907367][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3839.907367][   T73]      ipv6_find_idev+0x102/0x170
[ 3839.907367][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3839.907367][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3839.907367][   T73]      netlink_rcv_skb+0x130/0x360
[ 3839.907367][   T73]      netlink_unicast+0x449/0x710
[ 3839.907367][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3839.907367][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3839.907367][   T73]      ___sys_sendmsg+0xee/0x170
[ 3839.907367][   T73]      __sys_sendmsg+0xcd/0x170
[ 3839.907367][   T73]      do_syscall_64+0xc6/0x1e0
[ 3839.907367][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3839.907367][   T73] 
[ 3839.909057][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3839.909340][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3839.909340][   T73]      netdev_get_by_index+0x5e/0x80
[ 3839.909340][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3839.909340][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3839.909340][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3839.909340][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3839.909340][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3839.909340][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3839.909340][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3839.909340][   T73]      addrconf_dad_begin+0x310/0x670
[ 3839.909340][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3839.909340][   T73]      process_one_work+0x84d/0x18a0
[ 3839.909340][   T73]      worker_thread+0x587/0xd30
[ 3839.909340][   T73]      kthread+0x28a/0x350
[ 3839.909340][   T73]      ret_from_fork+0x31/0x70
[ 3839.909340][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3839.909340][   T73] 
[ 3839.911231][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3839.911231][   T73]      netdev_get_by_index+0x5e/0x80
[ 3839.911231][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3839.911231][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3839.911231][   T73]      ip6_route_add+0x1c/0x140
[ 3839.911231][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3839.911231][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3839.911231][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3839.911231][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3839.911231][   T73]      netlink_rcv_skb+0x130/0x360
[ 3839.911231][   T73]      netlink_unicast+0x449/0x710
[ 3839.911231][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3839.911231][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3839.911231][   T73]      ___sys_sendmsg+0xee/0x170
[ 3839.911231][   T73]      __sys_sendmsg+0xcd/0x170
[ 3839.911231][   T73]      do_syscall_64+0xc6/0x1e0
[ 3839.911231][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3839.911231][   T73] 
[ 3839.913214][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3839.913214][   T73]      netdev_get_by_index+0x5e/0x80
[ 3839.913214][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3839.913214][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3839.913214][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3839.913214][   T73]      ipv6_add_addr+0x411/0x2000
[ 3839.913214][   T73]      inet6_addr_add+0x30e/0xa40
[ 3839.913214][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3839.913214][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3839.913214][   T73]      netlink_rcv_skb+0x130/0x360
[ 3839.913214][   T73]      netlink_unicast+0x449/0x710
[ 3839.913214][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3839.913214][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3839.913214][   T73]      ___sys_sendmsg+0xee/0x170
[ 3839.913214][   T73]      __sys_sendmsg+0xcd/0x170
[ 3839.913214][   T73]      do_syscall_64+0xc6/0x1e0
[ 3839.913214][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3839.913214][   T73] 
[ 3839.915195][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3839.915195][   T73]      netdev_get_by_index+0x5e/0x80
[ 3839.915195][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3839.915195][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3839.915195][   T73]      ip6_route_add+0x1c/0x140
[ 3839.915195][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3839.915195][   T73]      addrconf_add_dev+0xe2/0x170
[ 3839.915195][   T73]      inet6_addr_add+0x12f/0xa40
[ 3839.915195][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3839.915195][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3839.915195][   T73]      netlink_rcv_skb+0x130/0x360
[ 3839.915195][   T73]      netlink_unicast+0x449/0x710
[ 3839.915195][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3839.915195][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3839.915195][   T73]      ___sys_sendmsg+0xee/0x170
[ 3839.915195][   T73]      __sys_sendmsg+0xcd/0x170
[ 3839.915195][   T73]      do_syscall_64+0xc6/0x1e0
[ 3839.915195][   T73] 
[ 3839.917150][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3839.917150][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3839.917150][   T73]      ipv6_find_idev+0x102/0x170
[ 3839.917150][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3839.917150][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3839.917150][   T73]      netlink_rcv_skb+0x130/0x360
[ 3839.917150][   T73]      netlink_unicast+0x449/0x710
[ 3839.917150][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3839.917150][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3839.917150][   T73]      ___sys_sendmsg+0xee/0x170
[ 3839.917150][   T73]      __sys_sendmsg+0xcd/0x170
[ 3839.917150][   T73]      do_syscall_64+0xc6/0x1e0
[ 3839.917150][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3839.917150][   T73] 
[ 3839.918675][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3839.918675][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3839.918675][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3839.918675][   T73]      ipv6_find_idev+0x102/0x170
[ 3839.918675][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3839.918675][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3839.918675][   T73]      netlink_rcv_skb+0x130/0x360
[ 3839.918675][   T73]      netlink_unicast+0x449/0x710
[ 3839.918675][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3839.918675][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3839.918675][   T73]      ___sys_sendmsg+0xee/0x170
[ 3839.918675][   T73]      __sys_sendmsg+0xcd/0x170
[ 3839.918675][   T73]      do_syscall_64+0xc6/0x1e0
[ 3839.918675][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3839.918675][   T73] 
[ 3839.920347][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3839.920613][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3839.920613][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3839.920613][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3839.920613][   T73]      fib6_nh_init+0xa22/0x1580
[ 3839.920613][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3839.920613][   T73]      ip6_route_add+0x1c/0x140
[ 3839.920613][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3839.920613][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3839.920613][   T73]      netlink_rcv_skb+0x130/0x360
[ 3839.920613][   T73]      netlink_unicast+0x449/0x710
[ 3839.920613][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3839.920613][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3839.920613][   T73]      ___sys_sendmsg+0xee/0x170
[ 3839.920613][   T73]      __sys_sendmsg+0xcd/0x170
[ 3839.920613][   T73]      do_syscall_64+0xc6/0x1e0
[ 3839.920613][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3839.920613][   T73] 
[ 3839.922664][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3839.922664][   T73]      dst_init+0x84/0x4a0
[ 3839.922664][   T73]      dst_alloc+0x97/0x150
[ 3839.922664][   T73]      ip6_dst_alloc+0x23/0x90
[ 3839.922664][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3839.922664][   T73]      ip6_pol_route+0x56f/0x840
[ 3839.922664][   T73]      fib6_rule_lookup+0x456/0x630
[ 3839.922664][   T73]      ip6_route_input+0x59c/0xa50
[ 3839.922664][   T73]      ipv6_rcv+0x397/0x810
[ 3839.922664][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3839.922664][   T73]      process_backlog+0x101/0x620
[ 3839.922664][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3839.922664][   T73]      net_rx_action+0x495/0xbe0
[ 3839.922664][   T73]      __do_softirq+0x1b5/0x7f6
[ 3839.922664][   T73] 
[ 3839.924527][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3839.924527][   T73]      netdev_get_by_index+0x5e/0x80
[ 3839.924527][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3839.924527][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3839.924527][   T73]      ip6_route_add+0x1c/0x140
[ 3839.924527][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3839.924527][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3839.924527][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3839.924527][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3839.924527][   T73]      netlink_rcv_skb+0x130/0x360
[ 3839.924527][   T73]      netlink_unicast+0x449/0x710
[ 3839.924527][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3839.924527][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3839.924527][   T73]      ___sys_sendmsg+0xee/0x170
[ 3839.924527][   T73]      __sys_sendmsg+0xcd/0x170
[ 3839.924527][   T73]      do_syscall_64+0xc6/0x1e0
[ 3839.924527][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3839.924527][   T73] 
[ 3839.926756][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3839.926756][   T73]      netdev_get_by_index+0x5e/0x80
[ 3839.926756][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3839.926756][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3839.926756][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3839.926756][   T73]      ipv6_add_addr+0x411/0x2000
[ 3839.926756][   T73]      inet6_addr_add+0x30e/0xa40
[ 3839.926756][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3839.926756][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3839.926756][   T73]      netlink_rcv_skb+0x130/0x360
[ 3839.926756][   T73]      netlink_unicast+0x449/0x710
[ 3839.926756][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3839.926756][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3839.926756][   T73]      ___sys_sendmsg+0xee/0x170
[ 3839.926756][   T73]      __sys_sendmsg+0xcd/0x170
[ 3839.926756][   T73]      do_syscall_64+0xc6/0x1e0
[ 3839.926756][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3839.926756][   T73] 
[ 3839.928979][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3839.928979][   T73]      netdev_get_by_index+0x5e/0x80
[ 3839.928979][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3839.928979][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3839.928979][   T73]      ip6_route_add+0x1c/0x140
[ 3839.928979][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3839.928979][   T73]      addrconf_add_dev+0xe2/0x170
[ 3839.928979][   T73]      inet6_addr_add+0x12f/0xa40
[ 3839.928979][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3839.928979][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3839.928979][   T73]      netlink_rcv_skb+0x130/0x360
[ 3839.928979][   T73]      netlink_unicast+0x449/0x710
[ 3839.928979][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3839.928979][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3839.928979][   T73]      ___sys_sendmsg+0xee/0x170
[ 3839.928979][   T73]      __sys_sendmsg+0xcd/0x170
[ 3839.928979][   T73]      do_syscall_64+0xc6/0x1e0
[ 3839.928979][   T73] 
[ 3839.931126][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3839.931126][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3839.931126][   T73]      ipv6_find_idev+0x102/0x170
[ 3839.931126][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3839.931126][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3839.931126][   T73]      netlink_rcv_skb+0x130/0x360
[ 3839.931126][   T73]      netlink_unicast+0x449/0x710
[ 3839.931126][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3839.931126][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3839.931126][   T73]      ___sys_sendmsg+0xee/0x170
[ 3839.931126][   T73]      __sys_sendmsg+0xcd/0x170
[ 3839.931126][   T73]      do_syscall_64+0xc6/0x1e0
[ 3839.931126][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3839.931126][   T73] 
[ 3839.932890][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3839.932890][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3839.932890][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3839.932890][   T73]      ipv6_find_idev+0x102/0x170
[ 3839.932890][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3839.932890][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3839.932890][   T73]      netlink_rcv_skb+0x130/0x360
[ 3839.932890][   T73]      netlink_unicast+0x449/0x710
[ 3839.932890][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3839.932890][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3839.932890][   T73]      ___sys_sendmsg+0xee/0x170
[ 3839.932890][   T73]      __sys_sendmsg+0xcd/0x170
[ 3839.932890][   T73]      do_syscall_64+0xc6/0x1e0
[ 3839.932890][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3839.932890][   T73] 
[ 3839.935815][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3839.936112][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3839.936112][   T73]      netdev_get_by_index+0x5e/0x80
[ 3839.936112][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3839.936112][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3839.936112][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3839.936112][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3839.936112][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3839.936112][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3839.936112][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3839.936112][   T73]      addrconf_dad_begin+0x310/0x670
[ 3839.936112][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3839.936112][   T73]      process_one_work+0x84d/0x18a0
[ 3839.936112][   T73]      worker_thread+0x587/0xd30
[ 3839.936112][   T73]      kthread+0x28a/0x350
[ 3839.936112][   T73]      ret_from_fork+0x31/0x70
[ 3839.936112][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3839.936112][   T73] 
[ 3839.938294][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3839.938294][   T73]      netdev_get_by_index+0x5e/0x80
[ 3839.938294][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3839.938294][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3839.938294][   T73]      ip6_route_add+0x1c/0x140
[ 3839.938294][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3839.938294][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3839.938294][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3839.938294][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3839.938294][   T73]      netlink_rcv_skb+0x130/0x360
[ 3839.938294][   T73]      netlink_unicast+0x449/0x710
[ 3839.938294][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3839.938294][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3839.938294][   T73]      ___sys_sendmsg+0xee/0x170
[ 3839.938294][   T73]      __sys_sendmsg+0xcd/0x170
[ 3839.938294][   T73]      do_syscall_64+0xc6/0x1e0
[ 3839.938294][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3839.938294][   T73] 
[ 3839.940473][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3839.940473][   T73]      netdev_get_by_index+0x5e/0x80
[ 3839.940473][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3839.940473][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3839.940473][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3839.940473][   T73]      ipv6_add_addr+0x411/0x2000
[ 3839.940473][   T73]      inet6_addr_add+0x30e/0xa40
[ 3839.940473][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3839.940473][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3839.940473][   T73]      netlink_rcv_skb+0x130/0x360
[ 3839.940473][   T73]      netlink_unicast+0x449/0x710
[ 3839.940473][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3839.940473][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3839.940473][   T73]      ___sys_sendmsg+0xee/0x170
[ 3839.940473][   T73]      __sys_sendmsg+0xcd/0x170
[ 3839.940473][   T73]      do_syscall_64+0xc6/0x1e0
[ 3839.940473][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3839.940473][   T73] 
[ 3839.942699][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3839.942699][   T73]      netdev_get_by_index+0x5e/0x80
[ 3839.942699][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3839.942699][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3839.942699][   T73]      ip6_route_add+0x1c/0x140
[ 3839.942699][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3839.942699][   T73]      addrconf_add_dev+0xe2/0x170
[ 3839.942699][   T73]      inet6_addr_add+0x12f/0xa40
[ 3839.942699][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3839.942699][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3839.942699][   T73]      netlink_rcv_skb+0x130/0x360
[ 3839.942699][   T73]      netlink_unicast+0x449/0x710
[ 3839.942699][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3839.942699][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3839.942699][   T73]      ___sys_sendmsg+0xee/0x170
[ 3839.942699][   T73]      __sys_sendmsg+0xcd/0x170
[ 3839.942699][   T73]      do_syscall_64+0xc6/0x1e0
[ 3839.942699][   T73] 
[ 3839.945366][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3839.945366][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3839.945366][   T73]      ipv6_find_idev+0x102/0x170
[ 3839.945366][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3839.945366][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3839.945366][   T73]      netlink_rcv_skb+0x130/0x360
[ 3839.945366][   T73]      netlink_unicast+0x449/0x710
[ 3839.945366][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3839.945366][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3839.945366][   T73]      ___sys_sendmsg+0xee/0x170
[ 3839.945366][   T73]      __sys_sendmsg+0xcd/0x170
[ 3839.945366][   T73]      do_syscall_64+0xc6/0x1e0
[ 3839.945366][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3839.945366][   T73] 
[ 3839.947098][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3839.947098][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3839.947098][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3839.947098][   T73]      ipv6_find_idev+0x102/0x170
[ 3839.947098][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3839.947098][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3839.947098][   T73]      netlink_rcv_skb+0x130/0x360
[ 3839.947098][   T73]      netlink_unicast+0x449/0x710
[ 3839.947098][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3839.947098][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3839.947098][   T73]      ___sys_sendmsg+0xee/0x170
[ 3839.947098][   T73]      __sys_sendmsg+0xcd/0x170
[ 3839.947098][   T73]      do_syscall_64+0xc6/0x1e0
[ 3839.947098][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3839.947098][   T73] 
[ 3850.151758][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3850.152208][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3850.152208][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3850.152208][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3850.152208][   T73]      fib6_nh_init+0xa22/0x1580
[ 3850.152208][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3850.152208][   T73]      ip6_route_add+0x1c/0x140
[ 3850.152208][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3850.152208][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3850.152208][   T73]      netlink_rcv_skb+0x130/0x360
[ 3850.152208][   T73]      netlink_unicast+0x449/0x710
[ 3850.152208][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3850.152208][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3850.152208][   T73]      ___sys_sendmsg+0xee/0x170
[ 3850.152208][   T73]      __sys_sendmsg+0xcd/0x170
[ 3850.152208][   T73]      do_syscall_64+0xc6/0x1e0
[ 3850.152208][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3850.152208][   T73] 
[ 3850.154137][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3850.154137][   T73]      dst_init+0x84/0x4a0
[ 3850.154137][   T73]      dst_alloc+0x97/0x150
[ 3850.154137][   T73]      ip6_dst_alloc+0x23/0x90
[ 3850.154137][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3850.154137][   T73]      ip6_pol_route+0x56f/0x840
[ 3850.154137][   T73]      fib6_rule_lookup+0x456/0x630
[ 3850.154137][   T73]      ip6_route_input+0x59c/0xa50
[ 3850.154137][   T73]      ipv6_rcv+0x397/0x810
[ 3850.154137][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3850.154137][   T73]      process_backlog+0x101/0x620
[ 3850.154137][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3850.154137][   T73]      net_rx_action+0x495/0xbe0
[ 3850.154137][   T73]      __do_softirq+0x1b5/0x7f6
[ 3850.154137][   T73] 
[ 3850.155810][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3850.155810][   T73]      netdev_get_by_index+0x5e/0x80
[ 3850.155810][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3850.155810][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3850.155810][   T73]      ip6_route_add+0x1c/0x140
[ 3850.155810][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3850.155810][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3850.155810][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3850.155810][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3850.155810][   T73]      netlink_rcv_skb+0x130/0x360
[ 3850.155810][   T73]      netlink_unicast+0x449/0x710
[ 3850.155810][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3850.155810][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3850.155810][   T73]      ___sys_sendmsg+0xee/0x170
[ 3850.155810][   T73]      __sys_sendmsg+0xcd/0x170
[ 3850.155810][   T73]      do_syscall_64+0xc6/0x1e0
[ 3850.155810][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3850.155810][   T73] 
[ 3850.157836][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3850.157836][   T73]      netdev_get_by_index+0x5e/0x80
[ 3850.157836][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3850.157836][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3850.157836][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3850.157836][   T73]      ipv6_add_addr+0x411/0x2000
[ 3850.157836][   T73]      inet6_addr_add+0x30e/0xa40
[ 3850.157836][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3850.157836][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3850.157836][   T73]      netlink_rcv_skb+0x130/0x360
[ 3850.157836][   T73]      netlink_unicast+0x449/0x710
[ 3850.157836][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3850.157836][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3850.157836][   T73]      ___sys_sendmsg+0xee/0x170
[ 3850.157836][   T73]      __sys_sendmsg+0xcd/0x170
[ 3850.157836][   T73]      do_syscall_64+0xc6/0x1e0
[ 3850.157836][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3850.157836][   T73] 
[ 3850.159871][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3850.159871][   T73]      netdev_get_by_index+0x5e/0x80
[ 3850.159871][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3850.159871][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3850.159871][   T73]      ip6_route_add+0x1c/0x140
[ 3850.159871][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3850.159871][   T73]      addrconf_add_dev+0xe2/0x170
[ 3850.159871][   T73]      inet6_addr_add+0x12f/0xa40
[ 3850.159871][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3850.159871][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3850.159871][   T73]      netlink_rcv_skb+0x130/0x360
[ 3850.159871][   T73]      netlink_unicast+0x449/0x710
[ 3850.159871][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3850.159871][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3850.159871][   T73]      ___sys_sendmsg+0xee/0x170
[ 3850.159871][   T73]      __sys_sendmsg+0xcd/0x170
[ 3850.159871][   T73]      do_syscall_64+0xc6/0x1e0
[ 3850.159871][   T73] 
[ 3850.162381][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3850.162381][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3850.162381][   T73]      ipv6_find_idev+0x102/0x170
[ 3850.162381][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3850.162381][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3850.162381][   T73]      netlink_rcv_skb+0x130/0x360
[ 3850.162381][   T73]      netlink_unicast+0x449/0x710
[ 3850.162381][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3850.162381][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3850.162381][   T73]      ___sys_sendmsg+0xee/0x170
[ 3850.162381][   T73]      __sys_sendmsg+0xcd/0x170
[ 3850.162381][   T73]      do_syscall_64+0xc6/0x1e0
[ 3850.162381][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3850.162381][   T73] 
[ 3850.163911][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3850.163911][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3850.163911][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3850.163911][   T73]      ipv6_find_idev+0x102/0x170
[ 3850.163911][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3850.163911][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3850.163911][   T73]      netlink_rcv_skb+0x130/0x360
[ 3850.163911][   T73]      netlink_unicast+0x449/0x710
[ 3850.163911][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3850.163911][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3850.163911][   T73]      ___sys_sendmsg+0xee/0x170
[ 3850.163911][   T73]      __sys_sendmsg+0xcd/0x170
[ 3850.163911][   T73]      do_syscall_64+0xc6/0x1e0
[ 3850.163911][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3850.163911][   T73] 
[ 3850.165594][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3850.165894][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3850.165894][   T73]      netdev_get_by_index+0x5e/0x80
[ 3850.165894][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3850.165894][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3850.165894][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3850.165894][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3850.165894][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3850.165894][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3850.165894][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3850.165894][   T73]      addrconf_dad_begin+0x310/0x670
[ 3850.165894][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3850.165894][   T73]      process_one_work+0x84d/0x18a0
[ 3850.165894][   T73]      worker_thread+0x587/0xd30
[ 3850.165894][   T73]      kthread+0x28a/0x350
[ 3850.165894][   T73]      ret_from_fork+0x31/0x70
[ 3850.165894][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3850.165894][   T73] 
[ 3850.167819][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3850.167819][   T73]      netdev_get_by_index+0x5e/0x80
[ 3850.167819][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3850.167819][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3850.167819][   T73]      ip6_route_add+0x1c/0x140
[ 3850.167819][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3850.167819][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3850.167819][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3850.167819][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3850.167819][   T73]      netlink_rcv_skb+0x130/0x360
[ 3850.167819][   T73]      netlink_unicast+0x449/0x710
[ 3850.167819][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3850.167819][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3850.167819][   T73]      ___sys_sendmsg+0xee/0x170
[ 3850.167819][   T73]      __sys_sendmsg+0xcd/0x170
[ 3850.167819][   T73]      do_syscall_64+0xc6/0x1e0
[ 3850.167819][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3850.167819][   T73] 
[ 3850.169820][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3850.169820][   T73]      netdev_get_by_index+0x5e/0x80
[ 3850.169820][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3850.169820][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3850.169820][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3850.169820][   T73]      ipv6_add_addr+0x411/0x2000
[ 3850.169820][   T73]      inet6_addr_add+0x30e/0xa40
[ 3850.169820][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3850.169820][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3850.169820][   T73]      netlink_rcv_skb+0x130/0x360
[ 3850.169820][   T73]      netlink_unicast+0x449/0x710
[ 3850.169820][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3850.169820][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3850.169820][   T73]      ___sys_sendmsg+0xee/0x170
[ 3850.169820][   T73]      __sys_sendmsg+0xcd/0x170
[ 3850.169820][   T73]      do_syscall_64+0xc6/0x1e0
[ 3850.169820][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3850.169820][   T73] 
[ 3850.171813][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3850.171813][   T73]      netdev_get_by_index+0x5e/0x80
[ 3850.171813][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3850.171813][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3850.171813][   T73]      ip6_route_add+0x1c/0x140
[ 3850.171813][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3850.171813][   T73]      addrconf_add_dev+0xe2/0x170
[ 3850.171813][   T73]      inet6_addr_add+0x12f/0xa40
[ 3850.171813][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3850.171813][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3850.171813][   T73]      netlink_rcv_skb+0x130/0x360
[ 3850.171813][   T73]      netlink_unicast+0x449/0x710
[ 3850.171813][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3850.171813][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3850.171813][   T73]      ___sys_sendmsg+0xee/0x170
[ 3850.171813][   T73]      __sys_sendmsg+0xcd/0x170
[ 3850.171813][   T73]      do_syscall_64+0xc6/0x1e0
[ 3850.171813][   T73] 
[ 3850.173787][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3850.173787][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3850.173787][   T73]      ipv6_find_idev+0x102/0x170
[ 3850.173787][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3850.173787][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3850.173787][   T73]      netlink_rcv_skb+0x130/0x360
[ 3850.173787][   T73]      netlink_unicast+0x449/0x710
[ 3850.173787][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3850.173787][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3850.173787][   T73]      ___sys_sendmsg+0xee/0x170
[ 3850.173787][   T73]      __sys_sendmsg+0xcd/0x170
[ 3850.173787][   T73]      do_syscall_64+0xc6/0x1e0
[ 3850.173787][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3850.173787][   T73] 
[ 3850.175320][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3850.175320][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3850.175320][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3850.175320][   T73]      ipv6_find_idev+0x102/0x170
[ 3850.175320][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3850.175320][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3850.175320][   T73]      netlink_rcv_skb+0x130/0x360
[ 3850.175320][   T73]      netlink_unicast+0x449/0x710
[ 3850.175320][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3850.175320][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3850.175320][   T73]      ___sys_sendmsg+0xee/0x170
[ 3850.175320][   T73]      __sys_sendmsg+0xcd/0x170
[ 3850.175320][   T73]      do_syscall_64+0xc6/0x1e0
[ 3850.175320][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3850.175320][   T73] 
[ 3850.177028][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3850.177311][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3850.177311][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3850.177311][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3850.177311][   T73]      fib6_nh_init+0xa22/0x1580
[ 3850.177311][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3850.177311][   T73]      ip6_route_add+0x1c/0x140
[ 3850.177311][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3850.177311][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3850.177311][   T73]      netlink_rcv_skb+0x130/0x360
[ 3850.177311][   T73]      netlink_unicast+0x449/0x710
[ 3850.177311][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3850.177311][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3850.177311][   T73]      ___sys_sendmsg+0xee/0x170
[ 3850.177311][   T73]      __sys_sendmsg+0xcd/0x170
[ 3850.177311][   T73]      do_syscall_64+0xc6/0x1e0
[ 3850.177311][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3850.177311][   T73] 
[ 3850.179429][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3850.179429][   T73]      dst_init+0x84/0x4a0
[ 3850.179429][   T73]      dst_alloc+0x97/0x150
[ 3850.179429][   T73]      ip6_dst_alloc+0x23/0x90
[ 3850.179429][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3850.179429][   T73]      ip6_pol_route+0x56f/0x840
[ 3850.179429][   T73]      fib6_rule_lookup+0x456/0x630
[ 3850.179429][   T73]      ip6_route_input+0x59c/0xa50
[ 3850.179429][   T73]      ipv6_rcv+0x397/0x810
[ 3850.179429][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3850.179429][   T73]      process_backlog+0x101/0x620
[ 3850.179429][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3850.179429][   T73]      net_rx_action+0x495/0xbe0
[ 3850.179429][   T73]      __do_softirq+0x1b5/0x7f6
[ 3850.179429][   T73] 
[ 3850.181252][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3850.181252][   T73]      netdev_get_by_index+0x5e/0x80
[ 3850.181252][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3850.181252][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3850.181252][   T73]      ip6_route_add+0x1c/0x140
[ 3850.181252][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3850.181252][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3850.181252][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3850.181252][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3850.181252][   T73]      netlink_rcv_skb+0x130/0x360
[ 3850.181252][   T73]      netlink_unicast+0x449/0x710
[ 3850.181252][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3850.181252][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3850.181252][   T73]      ___sys_sendmsg+0xee/0x170
[ 3850.181252][   T73]      __sys_sendmsg+0xcd/0x170
[ 3850.181252][   T73]      do_syscall_64+0xc6/0x1e0
[ 3850.181252][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3850.181252][   T73] 
[ 3850.183509][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3850.183509][   T73]      netdev_get_by_index+0x5e/0x80
[ 3850.183509][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3850.183509][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3850.183509][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3850.183509][   T73]      ipv6_add_addr+0x411/0x2000
[ 3850.183509][   T73]      inet6_addr_add+0x30e/0xa40
[ 3850.183509][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3850.183509][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3850.183509][   T73]      netlink_rcv_skb+0x130/0x360
[ 3850.183509][   T73]      netlink_unicast+0x449/0x710
[ 3850.183509][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3850.183509][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3850.183509][   T73]      ___sys_sendmsg+0xee/0x170
[ 3850.183509][   T73]      __sys_sendmsg+0xcd/0x170
[ 3850.183509][   T73]      do_syscall_64+0xc6/0x1e0
[ 3850.183509][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3850.183509][   T73] 
[ 3850.186120][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3850.186120][   T73]      netdev_get_by_index+0x5e/0x80
[ 3850.186120][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3850.186120][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3850.186120][   T73]      ip6_route_add+0x1c/0x140
[ 3850.186120][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3850.186120][   T73]      addrconf_add_dev+0xe2/0x170
[ 3850.186120][   T73]      inet6_addr_add+0x12f/0xa40
[ 3850.186120][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3850.186120][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3850.186120][   T73]      netlink_rcv_skb+0x130/0x360
[ 3850.186120][   T73]      netlink_unicast+0x449/0x710
[ 3850.186120][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3850.186120][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3850.186120][   T73]      ___sys_sendmsg+0xee/0x170
[ 3850.186120][   T73]      __sys_sendmsg+0xcd/0x170
[ 3850.186120][   T73]      do_syscall_64+0xc6/0x1e0
[ 3850.186120][   T73] 
[ 3850.188332][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3850.188332][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3850.188332][   T73]      ipv6_find_idev+0x102/0x170
[ 3850.188332][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3850.188332][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3850.188332][   T73]      netlink_rcv_skb+0x130/0x360
[ 3850.188332][   T73]      netlink_unicast+0x449/0x710
[ 3850.188332][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3850.188332][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3850.188332][   T73]      ___sys_sendmsg+0xee/0x170
[ 3850.188332][   T73]      __sys_sendmsg+0xcd/0x170
[ 3850.188332][   T73]      do_syscall_64+0xc6/0x1e0
[ 3850.188332][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3850.188332][   T73] 
[ 3850.190065][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3850.190065][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3850.190065][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3850.190065][   T73]      ipv6_find_idev+0x102/0x170
[ 3850.190065][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3850.190065][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3850.190065][   T73]      netlink_rcv_skb+0x130/0x360
[ 3850.190065][   T73]      netlink_unicast+0x449/0x710
[ 3850.190065][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3850.190065][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3850.190065][   T73]      ___sys_sendmsg+0xee/0x170
[ 3850.190065][   T73]      __sys_sendmsg+0xcd/0x170
[ 3850.190065][   T73]      do_syscall_64+0xc6/0x1e0
[ 3850.190065][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3850.190065][   T73] 
[ 3850.191942][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3850.192285][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3850.192285][   T73]      netdev_get_by_index+0x5e/0x80
[ 3850.192285][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3850.192285][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3850.192285][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3850.192285][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3850.192285][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3850.192285][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3850.192285][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3850.192285][   T73]      addrconf_dad_begin+0x310/0x670
[ 3850.192285][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3850.192285][   T73]      process_one_work+0x84d/0x18a0
[ 3850.192285][   T73]      worker_thread+0x587/0xd30
[ 3850.192285][   T73]      kthread+0x28a/0x350
[ 3850.192285][   T73]      ret_from_fork+0x31/0x70
[ 3850.192285][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3850.192285][   T73] 
[ 3850.194324][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3850.194324][   T73]      netdev_get_by_index+0x5e/0x80
[ 3850.194324][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3850.194324][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3850.194324][   T73]      ip6_route_add+0x1c/0x140
[ 3850.194324][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3850.194324][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3850.194324][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3850.194324][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3850.194324][   T73]      netlink_rcv_skb+0x130/0x360
[ 3850.194324][   T73]      netlink_unicast+0x449/0x710
[ 3850.194324][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3850.194324][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3850.194324][   T73]      ___sys_sendmsg+0xee/0x170
[ 3850.194324][   T73]      __sys_sendmsg+0xcd/0x170
[ 3850.194324][   T73]      do_syscall_64+0xc6/0x1e0
[ 3850.194324][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3850.194324][   T73] 
[ 3850.196642][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3850.196642][   T73]      netdev_get_by_index+0x5e/0x80
[ 3850.196642][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3850.196642][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3850.196642][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3850.196642][   T73]      ipv6_add_addr+0x411/0x2000
[ 3850.196642][   T73]      inet6_addr_add+0x30e/0xa40
[ 3850.196642][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3850.196642][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3850.196642][   T73]      netlink_rcv_skb+0x130/0x360
[ 3850.196642][   T73]      netlink_unicast+0x449/0x710
[ 3850.196642][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3850.196642][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3850.196642][   T73]      ___sys_sendmsg+0xee/0x170
[ 3850.196642][   T73]      __sys_sendmsg+0xcd/0x170
[ 3850.196642][   T73]      do_syscall_64+0xc6/0x1e0
[ 3850.196642][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3850.196642][   T73] 
[ 3850.198884][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3850.198884][   T73]      netdev_get_by_index+0x5e/0x80
[ 3850.198884][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3850.198884][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3850.198884][   T73]      ip6_route_add+0x1c/0x140
[ 3850.198884][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3850.198884][   T73]      addrconf_add_dev+0xe2/0x170
[ 3850.198884][   T73]      inet6_addr_add+0x12f/0xa40
[ 3850.198884][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3850.198884][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3850.198884][   T73]      netlink_rcv_skb+0x130/0x360
[ 3850.198884][   T73]      netlink_unicast+0x449/0x710
[ 3850.198884][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3850.198884][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3850.198884][   T73]      ___sys_sendmsg+0xee/0x170
[ 3850.198884][   T73]      __sys_sendmsg+0xcd/0x170
[ 3850.198884][   T73]      do_syscall_64+0xc6/0x1e0
[ 3850.198884][   T73] 
[ 3850.201099][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3850.201099][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3850.201099][   T73]      ipv6_find_idev+0x102/0x170
[ 3850.201099][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3850.201099][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3850.201099][   T73]      netlink_rcv_skb+0x130/0x360
[ 3850.201099][   T73]      netlink_unicast+0x449/0x710
[ 3850.201099][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3850.201099][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3850.201099][   T73]      ___sys_sendmsg+0xee/0x170
[ 3850.201099][   T73]      __sys_sendmsg+0xcd/0x170
[ 3850.201099][   T73]      do_syscall_64+0xc6/0x1e0
[ 3850.201099][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3850.201099][   T73] 
[ 3850.202819][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3850.202819][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3850.202819][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3850.202819][   T73]      ipv6_find_idev+0x102/0x170
[ 3850.202819][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3850.202819][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3850.202819][   T73]      netlink_rcv_skb+0x130/0x360
[ 3850.202819][   T73]      netlink_unicast+0x449/0x710
[ 3850.202819][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3850.202819][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3850.202819][   T73]      ___sys_sendmsg+0xee/0x170
[ 3850.202819][   T73]      __sys_sendmsg+0xcd/0x170
[ 3850.202819][   T73]      do_syscall_64+0xc6/0x1e0
[ 3850.202819][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3850.202819][   T73] 
[ 3860.447730][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3860.448225][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3860.448225][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3860.448225][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3860.448225][   T73]      fib6_nh_init+0xa22/0x1580
[ 3860.448225][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3860.448225][   T73]      ip6_route_add+0x1c/0x140
[ 3860.448225][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3860.448225][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3860.448225][   T73]      netlink_rcv_skb+0x130/0x360
[ 3860.448225][   T73]      netlink_unicast+0x449/0x710
[ 3860.448225][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3860.448225][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3860.448225][   T73]      ___sys_sendmsg+0xee/0x170
[ 3860.448225][   T73]      __sys_sendmsg+0xcd/0x170
[ 3860.448225][   T73]      do_syscall_64+0xc6/0x1e0
[ 3860.448225][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3860.448225][   T73] 
[ 3860.450159][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3860.450159][   T73]      dst_init+0x84/0x4a0
[ 3860.450159][   T73]      dst_alloc+0x97/0x150
[ 3860.450159][   T73]      ip6_dst_alloc+0x23/0x90
[ 3860.450159][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3860.450159][   T73]      ip6_pol_route+0x56f/0x840
[ 3860.450159][   T73]      fib6_rule_lookup+0x456/0x630
[ 3860.450159][   T73]      ip6_route_input+0x59c/0xa50
[ 3860.450159][   T73]      ipv6_rcv+0x397/0x810
[ 3860.450159][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3860.450159][   T73]      process_backlog+0x101/0x620
[ 3860.450159][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3860.450159][   T73]      net_rx_action+0x495/0xbe0
[ 3860.450159][   T73]      __do_softirq+0x1b5/0x7f6
[ 3860.450159][   T73] 
[ 3860.451856][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3860.451856][   T73]      netdev_get_by_index+0x5e/0x80
[ 3860.451856][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3860.451856][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3860.451856][   T73]      ip6_route_add+0x1c/0x140
[ 3860.451856][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3860.451856][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3860.451856][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3860.451856][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3860.451856][   T73]      netlink_rcv_skb+0x130/0x360
[ 3860.451856][   T73]      netlink_unicast+0x449/0x710
[ 3860.451856][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3860.451856][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3860.451856][   T73]      ___sys_sendmsg+0xee/0x170
[ 3860.451856][   T73]      __sys_sendmsg+0xcd/0x170
[ 3860.451856][   T73]      do_syscall_64+0xc6/0x1e0
[ 3860.451856][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3860.451856][   T73] 
[ 3860.453861][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3860.453861][   T73]      netdev_get_by_index+0x5e/0x80
[ 3860.453861][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3860.453861][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3860.453861][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3860.453861][   T73]      ipv6_add_addr+0x411/0x2000
[ 3860.453861][   T73]      inet6_addr_add+0x30e/0xa40
[ 3860.453861][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3860.453861][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3860.453861][   T73]      netlink_rcv_skb+0x130/0x360
[ 3860.453861][   T73]      netlink_unicast+0x449/0x710
[ 3860.453861][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3860.453861][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3860.453861][   T73]      ___sys_sendmsg+0xee/0x170
[ 3860.453861][   T73]      __sys_sendmsg+0xcd/0x170
[ 3860.453861][   T73]      do_syscall_64+0xc6/0x1e0
[ 3860.453861][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3860.453861][   T73] 
[ 3860.455874][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3860.455874][   T73]      netdev_get_by_index+0x5e/0x80
[ 3860.455874][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3860.455874][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3860.455874][   T73]      ip6_route_add+0x1c/0x140
[ 3860.455874][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3860.455874][   T73]      addrconf_add_dev+0xe2/0x170
[ 3860.455874][   T73]      inet6_addr_add+0x12f/0xa40
[ 3860.455874][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3860.455874][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3860.455874][   T73]      netlink_rcv_skb+0x130/0x360
[ 3860.455874][   T73]      netlink_unicast+0x449/0x710
[ 3860.455874][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3860.455874][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3860.455874][   T73]      ___sys_sendmsg+0xee/0x170
[ 3860.455874][   T73]      __sys_sendmsg+0xcd/0x170
[ 3860.455874][   T73]      do_syscall_64+0xc6/0x1e0
[ 3860.455874][   T73] 
[ 3860.457881][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3860.457881][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3860.457881][   T73]      ipv6_find_idev+0x102/0x170
[ 3860.457881][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3860.457881][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3860.457881][   T73]      netlink_rcv_skb+0x130/0x360
[ 3860.457881][   T73]      netlink_unicast+0x449/0x710
[ 3860.457881][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3860.457881][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3860.457881][   T73]      ___sys_sendmsg+0xee/0x170
[ 3860.457881][   T73]      __sys_sendmsg+0xcd/0x170
[ 3860.457881][   T73]      do_syscall_64+0xc6/0x1e0
[ 3860.457881][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3860.457881][   T73] 
[ 3860.459420][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3860.459420][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3860.459420][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3860.459420][   T73]      ipv6_find_idev+0x102/0x170
[ 3860.459420][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3860.459420][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3860.459420][   T73]      netlink_rcv_skb+0x130/0x360
[ 3860.459420][   T73]      netlink_unicast+0x449/0x710
[ 3860.459420][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3860.459420][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3860.459420][   T73]      ___sys_sendmsg+0xee/0x170
[ 3860.459420][   T73]      __sys_sendmsg+0xcd/0x170
[ 3860.459420][   T73]      do_syscall_64+0xc6/0x1e0
[ 3860.459420][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3860.459420][   T73] 
[ 3860.461112][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3860.461392][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3860.461392][   T73]      netdev_get_by_index+0x5e/0x80
[ 3860.461392][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3860.461392][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3860.461392][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3860.461392][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3860.461392][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3860.461392][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3860.461392][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3860.461392][   T73]      addrconf_dad_begin+0x310/0x670
[ 3860.461392][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3860.461392][   T73]      process_one_work+0x84d/0x18a0
[ 3860.461392][   T73]      worker_thread+0x587/0xd30
[ 3860.461392][   T73]      kthread+0x28a/0x350
[ 3860.461392][   T73]      ret_from_fork+0x31/0x70
[ 3860.461392][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3860.461392][   T73] 
[ 3860.463300][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3860.463300][   T73]      netdev_get_by_index+0x5e/0x80
[ 3860.463300][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3860.463300][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3860.463300][   T73]      ip6_route_add+0x1c/0x140
[ 3860.463300][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3860.463300][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3860.463300][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3860.463300][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3860.463300][   T73]      netlink_rcv_skb+0x130/0x360
[ 3860.463300][   T73]      netlink_unicast+0x449/0x710
[ 3860.463300][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3860.463300][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3860.463300][   T73]      ___sys_sendmsg+0xee/0x170
[ 3860.463300][   T73]      __sys_sendmsg+0xcd/0x170
[ 3860.463300][   T73]      do_syscall_64+0xc6/0x1e0
[ 3860.463300][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3860.463300][   T73] 
[ 3860.465298][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3860.465298][   T73]      netdev_get_by_index+0x5e/0x80
[ 3860.465298][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3860.465298][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3860.465298][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3860.465298][   T73]      ipv6_add_addr+0x411/0x2000
[ 3860.465298][   T73]      inet6_addr_add+0x30e/0xa40
[ 3860.465298][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3860.465298][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3860.465298][   T73]      netlink_rcv_skb+0x130/0x360
[ 3860.465298][   T73]      netlink_unicast+0x449/0x710
[ 3860.465298][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3860.465298][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3860.465298][   T73]      ___sys_sendmsg+0xee/0x170
[ 3860.465298][   T73]      __sys_sendmsg+0xcd/0x170
[ 3860.465298][   T73]      do_syscall_64+0xc6/0x1e0
[ 3860.465298][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3860.465298][   T73] 
[ 3860.467301][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3860.467301][   T73]      netdev_get_by_index+0x5e/0x80
[ 3860.467301][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3860.467301][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3860.467301][   T73]      ip6_route_add+0x1c/0x140
[ 3860.467301][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3860.467301][   T73]      addrconf_add_dev+0xe2/0x170
[ 3860.467301][   T73]      inet6_addr_add+0x12f/0xa40
[ 3860.467301][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3860.467301][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3860.467301][   T73]      netlink_rcv_skb+0x130/0x360
[ 3860.467301][   T73]      netlink_unicast+0x449/0x710
[ 3860.467301][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3860.467301][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3860.467301][   T73]      ___sys_sendmsg+0xee/0x170
[ 3860.467301][   T73]      __sys_sendmsg+0xcd/0x170
[ 3860.467301][   T73]      do_syscall_64+0xc6/0x1e0
[ 3860.467301][   T73] 
[ 3860.469243][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3860.469243][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3860.469243][   T73]      ipv6_find_idev+0x102/0x170
[ 3860.469243][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3860.469243][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3860.469243][   T73]      netlink_rcv_skb+0x130/0x360
[ 3860.469243][   T73]      netlink_unicast+0x449/0x710
[ 3860.469243][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3860.469243][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3860.469243][   T73]      ___sys_sendmsg+0xee/0x170
[ 3860.469243][   T73]      __sys_sendmsg+0xcd/0x170
[ 3860.469243][   T73]      do_syscall_64+0xc6/0x1e0
[ 3860.469243][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3860.469243][   T73] 
[ 3860.470779][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3860.470779][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3860.470779][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3860.470779][   T73]      ipv6_find_idev+0x102/0x170
[ 3860.470779][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3860.470779][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3860.470779][   T73]      netlink_rcv_skb+0x130/0x360
[ 3860.470779][   T73]      netlink_unicast+0x449/0x710
[ 3860.470779][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3860.470779][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3860.470779][   T73]      ___sys_sendmsg+0xee/0x170
[ 3860.470779][   T73]      __sys_sendmsg+0xcd/0x170
[ 3860.470779][   T73]      do_syscall_64+0xc6/0x1e0
[ 3860.470779][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3860.470779][   T73] 
[ 3860.472462][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3860.472750][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3860.472750][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3860.472750][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3860.472750][   T73]      fib6_nh_init+0xa22/0x1580
[ 3860.472750][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3860.472750][   T73]      ip6_route_add+0x1c/0x140
[ 3860.472750][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3860.472750][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3860.472750][   T73]      netlink_rcv_skb+0x130/0x360
[ 3860.472750][   T73]      netlink_unicast+0x449/0x710
[ 3860.472750][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3860.472750][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3860.472750][   T73]      ___sys_sendmsg+0xee/0x170
[ 3860.472750][   T73]      __sys_sendmsg+0xcd/0x170
[ 3860.472750][   T73]      do_syscall_64+0xc6/0x1e0
[ 3860.472750][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3860.472750][   T73] 
[ 3860.474797][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3860.474797][   T73]      dst_init+0x84/0x4a0
[ 3860.474797][   T73]      dst_alloc+0x97/0x150
[ 3860.474797][   T73]      ip6_dst_alloc+0x23/0x90
[ 3860.474797][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3860.474797][   T73]      ip6_pol_route+0x56f/0x840
[ 3860.474797][   T73]      fib6_rule_lookup+0x456/0x630
[ 3860.474797][   T73]      ip6_route_input+0x59c/0xa50
[ 3860.474797][   T73]      ipv6_rcv+0x397/0x810
[ 3860.474797][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3860.474797][   T73]      process_backlog+0x101/0x620
[ 3860.474797][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3860.474797][   T73]      net_rx_action+0x495/0xbe0
[ 3860.474797][   T73]      __do_softirq+0x1b5/0x7f6
[ 3860.474797][   T73] 
[ 3860.476569][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3860.476569][   T73]      netdev_get_by_index+0x5e/0x80
[ 3860.476569][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3860.476569][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3860.476569][   T73]      ip6_route_add+0x1c/0x140
[ 3860.476569][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3860.476569][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3860.476569][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3860.476569][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3860.476569][   T73]      netlink_rcv_skb+0x130/0x360
[ 3860.476569][   T73]      netlink_unicast+0x449/0x710
[ 3860.476569][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3860.476569][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3860.476569][   T73]      ___sys_sendmsg+0xee/0x170
[ 3860.476569][   T73]      __sys_sendmsg+0xcd/0x170
[ 3860.476569][   T73]      do_syscall_64+0xc6/0x1e0
[ 3860.476569][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3860.476569][   T73] 
[ 3860.478717][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3860.478717][   T73]      netdev_get_by_index+0x5e/0x80
[ 3860.478717][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3860.478717][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3860.478717][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3860.478717][   T73]      ipv6_add_addr+0x411/0x2000
[ 3860.478717][   T73]      inet6_addr_add+0x30e/0xa40
[ 3860.478717][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3860.478717][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3860.478717][   T73]      netlink_rcv_skb+0x130/0x360
[ 3860.478717][   T73]      netlink_unicast+0x449/0x710
[ 3860.478717][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3860.478717][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3860.478717][   T73]      ___sys_sendmsg+0xee/0x170
[ 3860.478717][   T73]      __sys_sendmsg+0xcd/0x170
[ 3860.478717][   T73]      do_syscall_64+0xc6/0x1e0
[ 3860.478717][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3860.478717][   T73] 
[ 3860.481139][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3860.481139][   T73]      netdev_get_by_index+0x5e/0x80
[ 3860.481139][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3860.481139][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3860.481139][   T73]      ip6_route_add+0x1c/0x140
[ 3860.481139][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3860.481139][   T73]      addrconf_add_dev+0xe2/0x170
[ 3860.481139][   T73]      inet6_addr_add+0x12f/0xa40
[ 3860.481139][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3860.481139][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3860.481139][   T73]      netlink_rcv_skb+0x130/0x360
[ 3860.481139][   T73]      netlink_unicast+0x449/0x710
[ 3860.481139][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3860.481139][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3860.481139][   T73]      ___sys_sendmsg+0xee/0x170
[ 3860.481139][   T73]      __sys_sendmsg+0xcd/0x170
[ 3860.481139][   T73]      do_syscall_64+0xc6/0x1e0
[ 3860.481139][   T73] 
[ 3860.483286][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3860.483286][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3860.483286][   T73]      ipv6_find_idev+0x102/0x170
[ 3860.483286][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3860.483286][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3860.483286][   T73]      netlink_rcv_skb+0x130/0x360
[ 3860.483286][   T73]      netlink_unicast+0x449/0x710
[ 3860.483286][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3860.483286][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3860.483286][   T73]      ___sys_sendmsg+0xee/0x170
[ 3860.483286][   T73]      __sys_sendmsg+0xcd/0x170
[ 3860.483286][   T73]      do_syscall_64+0xc6/0x1e0
[ 3860.483286][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3860.483286][   T73] 
[ 3860.484951][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3860.484951][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3860.484951][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3860.484951][   T73]      ipv6_find_idev+0x102/0x170
[ 3860.484951][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3860.484951][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3860.484951][   T73]      netlink_rcv_skb+0x130/0x360
[ 3860.484951][   T73]      netlink_unicast+0x449/0x710
[ 3860.484951][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3860.484951][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3860.484951][   T73]      ___sys_sendmsg+0xee/0x170
[ 3860.484951][   T73]      __sys_sendmsg+0xcd/0x170
[ 3860.484951][   T73]      do_syscall_64+0xc6/0x1e0
[ 3860.484951][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3860.484951][   T73] 
[ 3860.486722][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3860.487084][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3860.487084][   T73]      netdev_get_by_index+0x5e/0x80
[ 3860.487084][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3860.487084][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3860.487084][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3860.487084][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3860.487084][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3860.487084][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3860.487084][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3860.487084][   T73]      addrconf_dad_begin+0x310/0x670
[ 3860.487084][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3860.487084][   T73]      process_one_work+0x84d/0x18a0
[ 3860.487084][   T73]      worker_thread+0x587/0xd30
[ 3860.487084][   T73]      kthread+0x28a/0x350
[ 3860.487084][   T73]      ret_from_fork+0x31/0x70
[ 3860.487084][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3860.487084][   T73] 
[ 3860.489084][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3860.489084][   T73]      netdev_get_by_index+0x5e/0x80
[ 3860.489084][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3860.489084][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3860.489084][   T73]      ip6_route_add+0x1c/0x140
[ 3860.489084][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3860.489084][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3860.489084][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3860.489084][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3860.489084][   T73]      netlink_rcv_skb+0x130/0x360
[ 3860.489084][   T73]      netlink_unicast+0x449/0x710
[ 3860.489084][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3860.489084][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3860.489084][   T73]      ___sys_sendmsg+0xee/0x170
[ 3860.489084][   T73]      __sys_sendmsg+0xcd/0x170
[ 3860.489084][   T73]      do_syscall_64+0xc6/0x1e0
[ 3860.489084][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3860.489084][   T73] 
[ 3860.491251][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3860.491251][   T73]      netdev_get_by_index+0x5e/0x80
[ 3860.491251][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3860.491251][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3860.491251][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3860.491251][   T73]      ipv6_add_addr+0x411/0x2000
[ 3860.491251][   T73]      inet6_addr_add+0x30e/0xa40
[ 3860.491251][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3860.491251][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3860.491251][   T73]      netlink_rcv_skb+0x130/0x360
[ 3860.491251][   T73]      netlink_unicast+0x449/0x710
[ 3860.491251][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3860.491251][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3860.491251][   T73]      ___sys_sendmsg+0xee/0x170
[ 3860.491251][   T73]      __sys_sendmsg+0xcd/0x170
[ 3860.491251][   T73]      do_syscall_64+0xc6/0x1e0
[ 3860.491251][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3860.491251][   T73] 
[ 3860.493372][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3860.493372][   T73]      netdev_get_by_index+0x5e/0x80
[ 3860.493372][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3860.493372][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3860.493372][   T73]      ip6_route_add+0x1c/0x140
[ 3860.493372][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3860.493372][   T73]      addrconf_add_dev+0xe2/0x170
[ 3860.493372][   T73]      inet6_addr_add+0x12f/0xa40
[ 3860.493372][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3860.493372][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3860.493372][   T73]      netlink_rcv_skb+0x130/0x360
[ 3860.493372][   T73]      netlink_unicast+0x449/0x710
[ 3860.493372][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3860.493372][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3860.493372][   T73]      ___sys_sendmsg+0xee/0x170
[ 3860.493372][   T73]      __sys_sendmsg+0xcd/0x170
[ 3860.493372][   T73]      do_syscall_64+0xc6/0x1e0
[ 3860.493372][   T73] 
[ 3860.495480][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3860.495480][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3860.495480][   T73]      ipv6_find_idev+0x102/0x170
[ 3860.495480][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3860.495480][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3860.495480][   T73]      netlink_rcv_skb+0x130/0x360
[ 3860.495480][   T73]      netlink_unicast+0x449/0x710
[ 3860.495480][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3860.495480][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3860.495480][   T73]      ___sys_sendmsg+0xee/0x170
[ 3860.495480][   T73]      __sys_sendmsg+0xcd/0x170
[ 3860.495480][   T73]      do_syscall_64+0xc6/0x1e0
[ 3860.495480][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3860.495480][   T73] 
[ 3860.497187][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3860.497187][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3860.497187][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3860.497187][   T73]      ipv6_find_idev+0x102/0x170
[ 3860.497187][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3860.497187][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3860.497187][   T73]      netlink_rcv_skb+0x130/0x360
[ 3860.497187][   T73]      netlink_unicast+0x449/0x710
[ 3860.497187][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3860.497187][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3860.497187][   T73]      ___sys_sendmsg+0xee/0x170
[ 3860.497187][   T73]      __sys_sendmsg+0xcd/0x170
[ 3860.497187][   T73]      do_syscall_64+0xc6/0x1e0
[ 3860.497187][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3860.497187][   T73] 
[ 3870.735907][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3870.736352][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3870.736352][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3870.736352][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3870.736352][   T73]      fib6_nh_init+0xa22/0x1580
[ 3870.736352][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3870.736352][   T73]      ip6_route_add+0x1c/0x140
[ 3870.736352][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3870.736352][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3870.736352][   T73]      netlink_rcv_skb+0x130/0x360
[ 3870.736352][   T73]      netlink_unicast+0x449/0x710
[ 3870.736352][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3870.736352][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3870.736352][   T73]      ___sys_sendmsg+0xee/0x170
[ 3870.736352][   T73]      __sys_sendmsg+0xcd/0x170
[ 3870.736352][   T73]      do_syscall_64+0xc6/0x1e0
[ 3870.736352][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3870.736352][   T73] 
[ 3870.738282][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3870.738282][   T73]      dst_init+0x84/0x4a0
[ 3870.738282][   T73]      dst_alloc+0x97/0x150
[ 3870.738282][   T73]      ip6_dst_alloc+0x23/0x90
[ 3870.738282][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3870.738282][   T73]      ip6_pol_route+0x56f/0x840
[ 3870.738282][   T73]      fib6_rule_lookup+0x456/0x630
[ 3870.738282][   T73]      ip6_route_input+0x59c/0xa50
[ 3870.738282][   T73]      ipv6_rcv+0x397/0x810
[ 3870.738282][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3870.738282][   T73]      process_backlog+0x101/0x620
[ 3870.738282][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3870.738282][   T73]      net_rx_action+0x495/0xbe0
[ 3870.738282][   T73]      __do_softirq+0x1b5/0x7f6
[ 3870.738282][   T73] 
[ 3870.739918][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3870.739918][   T73]      netdev_get_by_index+0x5e/0x80
[ 3870.739918][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3870.739918][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3870.739918][   T73]      ip6_route_add+0x1c/0x140
[ 3870.739918][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3870.739918][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3870.739918][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3870.739918][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3870.739918][   T73]      netlink_rcv_skb+0x130/0x360
[ 3870.739918][   T73]      netlink_unicast+0x449/0x710
[ 3870.739918][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3870.739918][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3870.739918][   T73]      ___sys_sendmsg+0xee/0x170
[ 3870.739918][   T73]      __sys_sendmsg+0xcd/0x170
[ 3870.739918][   T73]      do_syscall_64+0xc6/0x1e0
[ 3870.739918][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3870.739918][   T73] 
[ 3870.741926][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3870.741926][   T73]      netdev_get_by_index+0x5e/0x80
[ 3870.741926][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3870.741926][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3870.741926][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3870.741926][   T73]      ipv6_add_addr+0x411/0x2000
[ 3870.741926][   T73]      inet6_addr_add+0x30e/0xa40
[ 3870.741926][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3870.741926][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3870.741926][   T73]      netlink_rcv_skb+0x130/0x360
[ 3870.741926][   T73]      netlink_unicast+0x449/0x710
[ 3870.741926][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3870.741926][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3870.741926][   T73]      ___sys_sendmsg+0xee/0x170
[ 3870.741926][   T73]      __sys_sendmsg+0xcd/0x170
[ 3870.741926][   T73]      do_syscall_64+0xc6/0x1e0
[ 3870.741926][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3870.741926][   T73] 
[ 3870.743958][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3870.743958][   T73]      netdev_get_by_index+0x5e/0x80
[ 3870.743958][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3870.743958][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3870.743958][   T73]      ip6_route_add+0x1c/0x140
[ 3870.743958][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3870.743958][   T73]      addrconf_add_dev+0xe2/0x170
[ 3870.743958][   T73]      inet6_addr_add+0x12f/0xa40
[ 3870.743958][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3870.743958][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3870.743958][   T73]      netlink_rcv_skb+0x130/0x360
[ 3870.743958][   T73]      netlink_unicast+0x449/0x710
[ 3870.743958][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3870.743958][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3870.743958][   T73]      ___sys_sendmsg+0xee/0x170
[ 3870.743958][   T73]      __sys_sendmsg+0xcd/0x170
[ 3870.743958][   T73]      do_syscall_64+0xc6/0x1e0
[ 3870.743958][   T73] 
[ 3870.745919][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3870.745919][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3870.745919][   T73]      ipv6_find_idev+0x102/0x170
[ 3870.745919][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3870.745919][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3870.745919][   T73]      netlink_rcv_skb+0x130/0x360
[ 3870.745919][   T73]      netlink_unicast+0x449/0x710
[ 3870.745919][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3870.745919][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3870.745919][   T73]      ___sys_sendmsg+0xee/0x170
[ 3870.745919][   T73]      __sys_sendmsg+0xcd/0x170
[ 3870.745919][   T73]      do_syscall_64+0xc6/0x1e0
[ 3870.745919][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3870.745919][   T73] 
[ 3870.747474][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3870.747474][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3870.747474][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3870.747474][   T73]      ipv6_find_idev+0x102/0x170
[ 3870.747474][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3870.747474][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3870.747474][   T73]      netlink_rcv_skb+0x130/0x360
[ 3870.747474][   T73]      netlink_unicast+0x449/0x710
[ 3870.747474][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3870.747474][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3870.747474][   T73]      ___sys_sendmsg+0xee/0x170
[ 3870.747474][   T73]      __sys_sendmsg+0xcd/0x170
[ 3870.747474][   T73]      do_syscall_64+0xc6/0x1e0
[ 3870.747474][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3870.747474][   T73] 
[ 3870.749170][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3870.749457][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3870.749457][   T73]      netdev_get_by_index+0x5e/0x80
[ 3870.749457][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3870.749457][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3870.749457][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3870.749457][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3870.749457][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3870.749457][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3870.749457][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3870.749457][   T73]      addrconf_dad_begin+0x310/0x670
[ 3870.749457][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3870.749457][   T73]      process_one_work+0x84d/0x18a0
[ 3870.749457][   T73]      worker_thread+0x587/0xd30
[ 3870.749457][   T73]      kthread+0x28a/0x350
[ 3870.749457][   T73]      ret_from_fork+0x31/0x70
[ 3870.749457][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3870.749457][   T73] 
[ 3870.751366][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3870.751366][   T73]      netdev_get_by_index+0x5e/0x80
[ 3870.751366][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3870.751366][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3870.751366][   T73]      ip6_route_add+0x1c/0x140
[ 3870.751366][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3870.751366][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3870.751366][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3870.751366][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3870.751366][   T73]      netlink_rcv_skb+0x130/0x360
[ 3870.751366][   T73]      netlink_unicast+0x449/0x710
[ 3870.751366][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3870.751366][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3870.751366][   T73]      ___sys_sendmsg+0xee/0x170
[ 3870.751366][   T73]      __sys_sendmsg+0xcd/0x170
[ 3870.751366][   T73]      do_syscall_64+0xc6/0x1e0
[ 3870.751366][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3870.751366][   T73] 
[ 3870.753411][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3870.753411][   T73]      netdev_get_by_index+0x5e/0x80
[ 3870.753411][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3870.753411][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3870.753411][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3870.753411][   T73]      ipv6_add_addr+0x411/0x2000
[ 3870.753411][   T73]      inet6_addr_add+0x30e/0xa40
[ 3870.753411][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3870.753411][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3870.753411][   T73]      netlink_rcv_skb+0x130/0x360
[ 3870.753411][   T73]      netlink_unicast+0x449/0x710
[ 3870.753411][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3870.753411][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3870.753411][   T73]      ___sys_sendmsg+0xee/0x170
[ 3870.753411][   T73]      __sys_sendmsg+0xcd/0x170
[ 3870.753411][   T73]      do_syscall_64+0xc6/0x1e0
[ 3870.753411][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3870.753411][   T73] 
[ 3870.755412][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3870.755412][   T73]      netdev_get_by_index+0x5e/0x80
[ 3870.755412][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3870.755412][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3870.755412][   T73]      ip6_route_add+0x1c/0x140
[ 3870.755412][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3870.755412][   T73]      addrconf_add_dev+0xe2/0x170
[ 3870.755412][   T73]      inet6_addr_add+0x12f/0xa40
[ 3870.755412][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3870.755412][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3870.755412][   T73]      netlink_rcv_skb+0x130/0x360
[ 3870.755412][   T73]      netlink_unicast+0x449/0x710
[ 3870.755412][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3870.755412][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3870.755412][   T73]      ___sys_sendmsg+0xee/0x170
[ 3870.755412][   T73]      __sys_sendmsg+0xcd/0x170
[ 3870.755412][   T73]      do_syscall_64+0xc6/0x1e0
[ 3870.755412][   T73] 
[ 3870.757391][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3870.757391][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3870.757391][   T73]      ipv6_find_idev+0x102/0x170
[ 3870.757391][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3870.757391][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3870.757391][   T73]      netlink_rcv_skb+0x130/0x360
[ 3870.757391][   T73]      netlink_unicast+0x449/0x710
[ 3870.757391][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3870.757391][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3870.757391][   T73]      ___sys_sendmsg+0xee/0x170
[ 3870.757391][   T73]      __sys_sendmsg+0xcd/0x170
[ 3870.757391][   T73]      do_syscall_64+0xc6/0x1e0
[ 3870.757391][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3870.757391][   T73] 
[ 3870.758935][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3870.758935][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3870.758935][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3870.758935][   T73]      ipv6_find_idev+0x102/0x170
[ 3870.758935][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3870.758935][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3870.758935][   T73]      netlink_rcv_skb+0x130/0x360
[ 3870.758935][   T73]      netlink_unicast+0x449/0x710
[ 3870.758935][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3870.758935][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3870.758935][   T73]      ___sys_sendmsg+0xee/0x170
[ 3870.758935][   T73]      __sys_sendmsg+0xcd/0x170
[ 3870.758935][   T73]      do_syscall_64+0xc6/0x1e0
[ 3870.758935][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3870.758935][   T73] 
[ 3870.760649][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3870.760919][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3870.760919][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3870.760919][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3870.760919][   T73]      fib6_nh_init+0xa22/0x1580
[ 3870.760919][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3870.760919][   T73]      ip6_route_add+0x1c/0x140
[ 3870.760919][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3870.760919][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3870.760919][   T73]      netlink_rcv_skb+0x130/0x360
[ 3870.760919][   T73]      netlink_unicast+0x449/0x710
[ 3870.760919][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3870.760919][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3870.760919][   T73]      ___sys_sendmsg+0xee/0x170
[ 3870.760919][   T73]      __sys_sendmsg+0xcd/0x170
[ 3870.760919][   T73]      do_syscall_64+0xc6/0x1e0
[ 3870.760919][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3870.760919][   T73] 
[ 3870.762991][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3870.762991][   T73]      dst_init+0x84/0x4a0
[ 3870.762991][   T73]      dst_alloc+0x97/0x150
[ 3870.762991][   T73]      ip6_dst_alloc+0x23/0x90
[ 3870.762991][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3870.762991][   T73]      ip6_pol_route+0x56f/0x840
[ 3870.762991][   T73]      fib6_rule_lookup+0x456/0x630
[ 3870.762991][   T73]      ip6_route_input+0x59c/0xa50
[ 3870.762991][   T73]      ipv6_rcv+0x397/0x810
[ 3870.762991][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3870.762991][   T73]      process_backlog+0x101/0x620
[ 3870.762991][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3870.762991][   T73]      net_rx_action+0x495/0xbe0
[ 3870.762991][   T73]      __do_softirq+0x1b5/0x7f6
[ 3870.762991][   T73] 
[ 3870.764813][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3870.764813][   T73]      netdev_get_by_index+0x5e/0x80
[ 3870.764813][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3870.764813][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3870.764813][   T73]      ip6_route_add+0x1c/0x140
[ 3870.764813][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3870.764813][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3870.764813][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3870.764813][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3870.764813][   T73]      netlink_rcv_skb+0x130/0x360
[ 3870.764813][   T73]      netlink_unicast+0x449/0x710
[ 3870.764813][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3870.764813][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3870.764813][   T73]      ___sys_sendmsg+0xee/0x170
[ 3870.764813][   T73]      __sys_sendmsg+0xcd/0x170
[ 3870.764813][   T73]      do_syscall_64+0xc6/0x1e0
[ 3870.764813][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3870.764813][   T73] 
[ 3870.767064][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3870.767064][   T73]      netdev_get_by_index+0x5e/0x80
[ 3870.767064][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3870.767064][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3870.767064][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3870.767064][   T73]      ipv6_add_addr+0x411/0x2000
[ 3870.767064][   T73]      inet6_addr_add+0x30e/0xa40
[ 3870.767064][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3870.767064][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3870.767064][   T73]      netlink_rcv_skb+0x130/0x360
[ 3870.767064][   T73]      netlink_unicast+0x449/0x710
[ 3870.767064][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3870.767064][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3870.767064][   T73]      ___sys_sendmsg+0xee/0x170
[ 3870.767064][   T73]      __sys_sendmsg+0xcd/0x170
[ 3870.767064][   T73]      do_syscall_64+0xc6/0x1e0
[ 3870.767064][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3870.767064][   T73] 
[ 3870.769326][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3870.769326][   T73]      netdev_get_by_index+0x5e/0x80
[ 3870.769326][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3870.769326][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3870.769326][   T73]      ip6_route_add+0x1c/0x140
[ 3870.769326][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3870.769326][   T73]      addrconf_add_dev+0xe2/0x170
[ 3870.769326][   T73]      inet6_addr_add+0x12f/0xa40
[ 3870.769326][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3870.769326][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3870.769326][   T73]      netlink_rcv_skb+0x130/0x360
[ 3870.769326][   T73]      netlink_unicast+0x449/0x710
[ 3870.769326][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3870.769326][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3870.769326][   T73]      ___sys_sendmsg+0xee/0x170
[ 3870.769326][   T73]      __sys_sendmsg+0xcd/0x170
[ 3870.769326][   T73]      do_syscall_64+0xc6/0x1e0
[ 3870.769326][   T73] 
[ 3870.771552][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3870.771552][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3870.771552][   T73]      ipv6_find_idev+0x102/0x170
[ 3870.771552][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3870.771552][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3870.771552][   T73]      netlink_rcv_skb+0x130/0x360
[ 3870.771552][   T73]      netlink_unicast+0x449/0x710
[ 3870.771552][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3870.771552][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3870.771552][   T73]      ___sys_sendmsg+0xee/0x170
[ 3870.771552][   T73]      __sys_sendmsg+0xcd/0x170
[ 3870.771552][   T73]      do_syscall_64+0xc6/0x1e0
[ 3870.771552][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3870.771552][   T73] 
[ 3870.773281][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3870.773281][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3870.773281][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3870.773281][   T73]      ipv6_find_idev+0x102/0x170
[ 3870.773281][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3870.773281][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3870.773281][   T73]      netlink_rcv_skb+0x130/0x360
[ 3870.773281][   T73]      netlink_unicast+0x449/0x710
[ 3870.773281][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3870.773281][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3870.773281][   T73]      ___sys_sendmsg+0xee/0x170
[ 3870.773281][   T73]      __sys_sendmsg+0xcd/0x170
[ 3870.773281][   T73]      do_syscall_64+0xc6/0x1e0
[ 3870.773281][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3870.773281][   T73] 
[ 3870.775149][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3870.775491][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3870.775491][   T73]      netdev_get_by_index+0x5e/0x80
[ 3870.775491][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3870.775491][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3870.775491][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3870.775491][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3870.775491][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3870.775491][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3870.775491][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3870.775491][   T73]      addrconf_dad_begin+0x310/0x670
[ 3870.775491][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3870.775491][   T73]      process_one_work+0x84d/0x18a0
[ 3870.775491][   T73]      worker_thread+0x587/0xd30
[ 3870.775491][   T73]      kthread+0x28a/0x350
[ 3870.775491][   T73]      ret_from_fork+0x31/0x70
[ 3870.775491][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3870.775491][   T73] 
[ 3870.777542][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3870.777542][   T73]      netdev_get_by_index+0x5e/0x80
[ 3870.777542][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3870.777542][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3870.777542][   T73]      ip6_route_add+0x1c/0x140
[ 3870.777542][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3870.777542][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3870.777542][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3870.777542][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3870.777542][   T73]      netlink_rcv_skb+0x130/0x360
[ 3870.777542][   T73]      netlink_unicast+0x449/0x710
[ 3870.777542][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3870.777542][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3870.777542][   T73]      ___sys_sendmsg+0xee/0x170
[ 3870.777542][   T73]      __sys_sendmsg+0xcd/0x170
[ 3870.777542][   T73]      do_syscall_64+0xc6/0x1e0
[ 3870.777542][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3870.777542][   T73] 
[ 3870.779846][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3870.779846][   T73]      netdev_get_by_index+0x5e/0x80
[ 3870.779846][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3870.779846][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3870.779846][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3870.779846][   T73]      ipv6_add_addr+0x411/0x2000
[ 3870.779846][   T73]      inet6_addr_add+0x30e/0xa40
[ 3870.779846][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3870.779846][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3870.779846][   T73]      netlink_rcv_skb+0x130/0x360
[ 3870.779846][   T73]      netlink_unicast+0x449/0x710
[ 3870.779846][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3870.779846][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3870.779846][   T73]      ___sys_sendmsg+0xee/0x170
[ 3870.779846][   T73]      __sys_sendmsg+0xcd/0x170
[ 3870.779846][   T73]      do_syscall_64+0xc6/0x1e0
[ 3870.779846][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3870.779846][   T73] 
[ 3870.782098][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3870.782098][   T73]      netdev_get_by_index+0x5e/0x80
[ 3870.782098][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3870.782098][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3870.782098][   T73]      ip6_route_add+0x1c/0x140
[ 3870.782098][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3870.782098][   T73]      addrconf_add_dev+0xe2/0x170
[ 3870.782098][   T73]      inet6_addr_add+0x12f/0xa40
[ 3870.782098][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3870.782098][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3870.782098][   T73]      netlink_rcv_skb+0x130/0x360
[ 3870.782098][   T73]      netlink_unicast+0x449/0x710
[ 3870.782098][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3870.782098][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3870.782098][   T73]      ___sys_sendmsg+0xee/0x170
[ 3870.782098][   T73]      __sys_sendmsg+0xcd/0x170
[ 3870.782098][   T73]      do_syscall_64+0xc6/0x1e0
[ 3870.782098][   T73] 
[ 3870.784309][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3870.784309][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3870.784309][   T73]      ipv6_find_idev+0x102/0x170
[ 3870.784309][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3870.784309][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3870.784309][   T73]      netlink_rcv_skb+0x130/0x360
[ 3870.784309][   T73]      netlink_unicast+0x449/0x710
[ 3870.784309][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3870.784309][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3870.784309][   T73]      ___sys_sendmsg+0xee/0x170
[ 3870.784309][   T73]      __sys_sendmsg+0xcd/0x170
[ 3870.784309][   T73]      do_syscall_64+0xc6/0x1e0
[ 3870.784309][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3870.784309][   T73] 
[ 3870.785918][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3870.785918][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3870.785918][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3870.785918][   T73]      ipv6_find_idev+0x102/0x170
[ 3870.785918][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3870.785918][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3870.785918][   T73]      netlink_rcv_skb+0x130/0x360
[ 3870.785918][   T73]      netlink_unicast+0x449/0x710
[ 3870.785918][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3870.785918][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3870.785918][   T73]      ___sys_sendmsg+0xee/0x170
[ 3870.785918][   T73]      __sys_sendmsg+0xcd/0x170
[ 3870.785918][   T73]      do_syscall_64+0xc6/0x1e0
[ 3870.785918][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3870.785918][   T73] 
[ 3881.023837][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3881.024342][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3881.024342][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3881.024342][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3881.024342][   T73]      fib6_nh_init+0xa22/0x1580
[ 3881.024342][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3881.024342][   T73]      ip6_route_add+0x1c/0x140
[ 3881.024342][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3881.024342][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3881.024342][   T73]      netlink_rcv_skb+0x130/0x360
[ 3881.024342][   T73]      netlink_unicast+0x449/0x710
[ 3881.024342][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3881.024342][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3881.024342][   T73]      ___sys_sendmsg+0xee/0x170
[ 3881.024342][   T73]      __sys_sendmsg+0xcd/0x170
[ 3881.024342][   T73]      do_syscall_64+0xc6/0x1e0
[ 3881.024342][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3881.024342][   T73] 
[ 3881.026723][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3881.026723][   T73]      dst_init+0x84/0x4a0
[ 3881.026723][   T73]      dst_alloc+0x97/0x150
[ 3881.026723][   T73]      ip6_dst_alloc+0x23/0x90
[ 3881.026723][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3881.026723][   T73]      ip6_pol_route+0x56f/0x840
[ 3881.026723][   T73]      fib6_rule_lookup+0x456/0x630
[ 3881.026723][   T73]      ip6_route_input+0x59c/0xa50
[ 3881.026723][   T73]      ipv6_rcv+0x397/0x810
[ 3881.026723][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3881.026723][   T73]      process_backlog+0x101/0x620
[ 3881.026723][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3881.026723][   T73]      net_rx_action+0x495/0xbe0
[ 3881.026723][   T73]      __do_softirq+0x1b5/0x7f6
[ 3881.026723][   T73] 
[ 3881.028752][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3881.028752][   T73]      netdev_get_by_index+0x5e/0x80
[ 3881.028752][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3881.028752][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3881.028752][   T73]      ip6_route_add+0x1c/0x140
[ 3881.028752][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3881.028752][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3881.028752][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3881.028752][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3881.028752][   T73]      netlink_rcv_skb+0x130/0x360
[ 3881.028752][   T73]      netlink_unicast+0x449/0x710
[ 3881.028752][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3881.028752][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3881.028752][   T73]      ___sys_sendmsg+0xee/0x170
[ 3881.028752][   T73]      __sys_sendmsg+0xcd/0x170
[ 3881.028752][   T73]      do_syscall_64+0xc6/0x1e0
[ 3881.028752][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3881.028752][   T73] 
[ 3881.031224][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3881.031224][   T73]      netdev_get_by_index+0x5e/0x80
[ 3881.031224][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3881.031224][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3881.031224][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3881.031224][   T73]      ipv6_add_addr+0x411/0x2000
[ 3881.031224][   T73]      inet6_addr_add+0x30e/0xa40
[ 3881.031224][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3881.031224][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3881.031224][   T73]      netlink_rcv_skb+0x130/0x360
[ 3881.031224][   T73]      netlink_unicast+0x449/0x710
[ 3881.031224][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3881.031224][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3881.031224][   T73]      ___sys_sendmsg+0xee/0x170
[ 3881.031224][   T73]      __sys_sendmsg+0xcd/0x170
[ 3881.031224][   T73]      do_syscall_64+0xc6/0x1e0
[ 3881.031224][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3881.031224][   T73] 
[ 3881.033249][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3881.033249][   T73]      netdev_get_by_index+0x5e/0x80
[ 3881.033249][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3881.033249][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3881.033249][   T73]      ip6_route_add+0x1c/0x140
[ 3881.033249][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3881.033249][   T73]      addrconf_add_dev+0xe2/0x170
[ 3881.033249][   T73]      inet6_addr_add+0x12f/0xa40
[ 3881.033249][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3881.033249][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3881.033249][   T73]      netlink_rcv_skb+0x130/0x360
[ 3881.033249][   T73]      netlink_unicast+0x449/0x710
[ 3881.033249][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3881.033249][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3881.033249][   T73]      ___sys_sendmsg+0xee/0x170
[ 3881.033249][   T73]      __sys_sendmsg+0xcd/0x170
[ 3881.033249][   T73]      do_syscall_64+0xc6/0x1e0
[ 3881.033249][   T73] 
[ 3881.035267][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3881.035267][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3881.035267][   T73]      ipv6_find_idev+0x102/0x170
[ 3881.035267][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3881.035267][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3881.035267][   T73]      netlink_rcv_skb+0x130/0x360
[ 3881.035267][   T73]      netlink_unicast+0x449/0x710
[ 3881.035267][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3881.035267][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3881.035267][   T73]      ___sys_sendmsg+0xee/0x170
[ 3881.035267][   T73]      __sys_sendmsg+0xcd/0x170
[ 3881.035267][   T73]      do_syscall_64+0xc6/0x1e0
[ 3881.035267][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3881.035267][   T73] 
[ 3881.036857][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3881.036857][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3881.036857][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3881.036857][   T73]      ipv6_find_idev+0x102/0x170
[ 3881.036857][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3881.036857][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3881.036857][   T73]      netlink_rcv_skb+0x130/0x360
[ 3881.036857][   T73]      netlink_unicast+0x449/0x710
[ 3881.036857][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3881.036857][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3881.036857][   T73]      ___sys_sendmsg+0xee/0x170
[ 3881.036857][   T73]      __sys_sendmsg+0xcd/0x170
[ 3881.036857][   T73]      do_syscall_64+0xc6/0x1e0
[ 3881.036857][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3881.036857][   T73] 
[ 3881.038550][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3881.038854][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3881.038854][   T73]      netdev_get_by_index+0x5e/0x80
[ 3881.038854][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3881.038854][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3881.038854][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3881.038854][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3881.038854][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3881.038854][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3881.038854][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3881.038854][   T73]      addrconf_dad_begin+0x310/0x670
[ 3881.038854][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3881.038854][   T73]      process_one_work+0x84d/0x18a0
[ 3881.038854][   T73]      worker_thread+0x587/0xd30
[ 3881.038854][   T73]      kthread+0x28a/0x350
[ 3881.038854][   T73]      ret_from_fork+0x31/0x70
[ 3881.038854][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3881.038854][   T73] 
[ 3881.040773][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3881.040773][   T73]      netdev_get_by_index+0x5e/0x80
[ 3881.040773][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3881.040773][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3881.040773][   T73]      ip6_route_add+0x1c/0x140
[ 3881.040773][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3881.040773][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3881.040773][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3881.040773][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3881.040773][   T73]      netlink_rcv_skb+0x130/0x360
[ 3881.040773][   T73]      netlink_unicast+0x449/0x710
[ 3881.040773][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3881.040773][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3881.040773][   T73]      ___sys_sendmsg+0xee/0x170
[ 3881.040773][   T73]      __sys_sendmsg+0xcd/0x170
[ 3881.040773][   T73]      do_syscall_64+0xc6/0x1e0
[ 3881.040773][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3881.040773][   T73] 
[ 3881.042819][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3881.042819][   T73]      netdev_get_by_index+0x5e/0x80
[ 3881.042819][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3881.042819][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3881.042819][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3881.042819][   T73]      ipv6_add_addr+0x411/0x2000
[ 3881.042819][   T73]      inet6_addr_add+0x30e/0xa40
[ 3881.042819][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3881.042819][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3881.042819][   T73]      netlink_rcv_skb+0x130/0x360
[ 3881.042819][   T73]      netlink_unicast+0x449/0x710
[ 3881.042819][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3881.042819][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3881.042819][   T73]      ___sys_sendmsg+0xee/0x170
[ 3881.042819][   T73]      __sys_sendmsg+0xcd/0x170
[ 3881.042819][   T73]      do_syscall_64+0xc6/0x1e0
[ 3881.042819][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3881.042819][   T73] 
[ 3881.044852][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3881.044852][   T73]      netdev_get_by_index+0x5e/0x80
[ 3881.044852][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3881.044852][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3881.044852][   T73]      ip6_route_add+0x1c/0x140
[ 3881.044852][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3881.044852][   T73]      addrconf_add_dev+0xe2/0x170
[ 3881.044852][   T73]      inet6_addr_add+0x12f/0xa40
[ 3881.044852][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3881.044852][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3881.044852][   T73]      netlink_rcv_skb+0x130/0x360
[ 3881.044852][   T73]      netlink_unicast+0x449/0x710
[ 3881.044852][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3881.044852][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3881.044852][   T73]      ___sys_sendmsg+0xee/0x170
[ 3881.044852][   T73]      __sys_sendmsg+0xcd/0x170
[ 3881.044852][   T73]      do_syscall_64+0xc6/0x1e0
[ 3881.044852][   T73] 
[ 3881.046874][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3881.046874][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3881.046874][   T73]      ipv6_find_idev+0x102/0x170
[ 3881.046874][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3881.046874][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3881.046874][   T73]      netlink_rcv_skb+0x130/0x360
[ 3881.046874][   T73]      netlink_unicast+0x449/0x710
[ 3881.046874][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3881.046874][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3881.046874][   T73]      ___sys_sendmsg+0xee/0x170
[ 3881.046874][   T73]      __sys_sendmsg+0xcd/0x170
[ 3881.046874][   T73]      do_syscall_64+0xc6/0x1e0
[ 3881.046874][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3881.046874][   T73] 
[ 3881.048453][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3881.048453][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3881.048453][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3881.048453][   T73]      ipv6_find_idev+0x102/0x170
[ 3881.048453][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3881.048453][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3881.048453][   T73]      netlink_rcv_skb+0x130/0x360
[ 3881.048453][   T73]      netlink_unicast+0x449/0x710
[ 3881.048453][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3881.048453][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3881.048453][   T73]      ___sys_sendmsg+0xee/0x170
[ 3881.048453][   T73]      __sys_sendmsg+0xcd/0x170
[ 3881.048453][   T73]      do_syscall_64+0xc6/0x1e0
[ 3881.048453][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3881.048453][   T73] 
[ 3881.050150][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3881.050454][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3881.050454][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3881.050454][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3881.050454][   T73]      fib6_nh_init+0xa22/0x1580
[ 3881.050454][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3881.050454][   T73]      ip6_route_add+0x1c/0x140
[ 3881.050454][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3881.050454][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3881.050454][   T73]      netlink_rcv_skb+0x130/0x360
[ 3881.050454][   T73]      netlink_unicast+0x449/0x710
[ 3881.050454][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3881.050454][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3881.050454][   T73]      ___sys_sendmsg+0xee/0x170
[ 3881.050454][   T73]      __sys_sendmsg+0xcd/0x170
[ 3881.050454][   T73]      do_syscall_64+0xc6/0x1e0
[ 3881.050454][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3881.050454][   T73] 
[ 3881.052523][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3881.052523][   T73]      dst_init+0x84/0x4a0
[ 3881.052523][   T73]      dst_alloc+0x97/0x150
[ 3881.052523][   T73]      ip6_dst_alloc+0x23/0x90
[ 3881.052523][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3881.052523][   T73]      ip6_pol_route+0x56f/0x840
[ 3881.052523][   T73]      fib6_rule_lookup+0x456/0x630
[ 3881.052523][   T73]      ip6_route_input+0x59c/0xa50
[ 3881.052523][   T73]      ipv6_rcv+0x397/0x810
[ 3881.052523][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3881.052523][   T73]      process_backlog+0x101/0x620
[ 3881.052523][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3881.052523][   T73]      net_rx_action+0x495/0xbe0
[ 3881.052523][   T73]      __do_softirq+0x1b5/0x7f6
[ 3881.052523][   T73] 
[ 3881.054417][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3881.054417][   T73]      netdev_get_by_index+0x5e/0x80
[ 3881.054417][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3881.054417][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3881.054417][   T73]      ip6_route_add+0x1c/0x140
[ 3881.054417][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3881.054417][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3881.054417][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3881.054417][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3881.054417][   T73]      netlink_rcv_skb+0x130/0x360
[ 3881.054417][   T73]      netlink_unicast+0x449/0x710
[ 3881.054417][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3881.054417][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3881.054417][   T73]      ___sys_sendmsg+0xee/0x170
[ 3881.054417][   T73]      __sys_sendmsg+0xcd/0x170
[ 3881.054417][   T73]      do_syscall_64+0xc6/0x1e0
[ 3881.054417][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3881.054417][   T73] 
[ 3881.056718][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3881.056718][   T73]      netdev_get_by_index+0x5e/0x80
[ 3881.056718][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3881.056718][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3881.056718][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3881.056718][   T73]      ipv6_add_addr+0x411/0x2000
[ 3881.056718][   T73]      inet6_addr_add+0x30e/0xa40
[ 3881.056718][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3881.056718][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3881.056718][   T73]      netlink_rcv_skb+0x130/0x360
[ 3881.056718][   T73]      netlink_unicast+0x449/0x710
[ 3881.056718][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3881.056718][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3881.056718][   T73]      ___sys_sendmsg+0xee/0x170
[ 3881.056718][   T73]      __sys_sendmsg+0xcd/0x170
[ 3881.056718][   T73]      do_syscall_64+0xc6/0x1e0
[ 3881.056718][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3881.056718][   T73] 
[ 3881.059011][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3881.059011][   T73]      netdev_get_by_index+0x5e/0x80
[ 3881.059011][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3881.059011][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3881.059011][   T73]      ip6_route_add+0x1c/0x140
[ 3881.059011][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3881.059011][   T73]      addrconf_add_dev+0xe2/0x170
[ 3881.059011][   T73]      inet6_addr_add+0x12f/0xa40
[ 3881.059011][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3881.059011][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3881.059011][   T73]      netlink_rcv_skb+0x130/0x360
[ 3881.059011][   T73]      netlink_unicast+0x449/0x710
[ 3881.059011][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3881.059011][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3881.059011][   T73]      ___sys_sendmsg+0xee/0x170
[ 3881.059011][   T73]      __sys_sendmsg+0xcd/0x170
[ 3881.059011][   T73]      do_syscall_64+0xc6/0x1e0
[ 3881.059011][   T73] 
[ 3881.061216][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3881.061216][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3881.061216][   T73]      ipv6_find_idev+0x102/0x170
[ 3881.061216][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3881.061216][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3881.061216][   T73]      netlink_rcv_skb+0x130/0x360
[ 3881.061216][   T73]      netlink_unicast+0x449/0x710
[ 3881.061216][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3881.061216][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3881.061216][   T73]      ___sys_sendmsg+0xee/0x170
[ 3881.061216][   T73]      __sys_sendmsg+0xcd/0x170
[ 3881.061216][   T73]      do_syscall_64+0xc6/0x1e0
[ 3881.061216][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3881.061216][   T73] 
[ 3881.062977][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3881.062977][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3881.062977][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3881.062977][   T73]      ipv6_find_idev+0x102/0x170
[ 3881.062977][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3881.062977][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3881.062977][   T73]      netlink_rcv_skb+0x130/0x360
[ 3881.062977][   T73]      netlink_unicast+0x449/0x710
[ 3881.062977][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3881.062977][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3881.062977][   T73]      ___sys_sendmsg+0xee/0x170
[ 3881.062977][   T73]      __sys_sendmsg+0xcd/0x170
[ 3881.062977][   T73]      do_syscall_64+0xc6/0x1e0
[ 3881.062977][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3881.062977][   T73] 
[ 3881.065444][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3881.066154][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3881.066154][   T73]      netdev_get_by_index+0x5e/0x80
[ 3881.066154][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3881.066154][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3881.066154][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3881.066154][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3881.066154][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3881.066154][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3881.066154][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3881.066154][   T73]      addrconf_dad_begin+0x310/0x670
[ 3881.066154][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3881.066154][   T73]      process_one_work+0x84d/0x18a0
[ 3881.066154][   T73]      worker_thread+0x587/0xd30
[ 3881.066154][   T73]      kthread+0x28a/0x350
[ 3881.066154][   T73]      ret_from_fork+0x31/0x70
[ 3881.066154][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3881.066154][   T73] 
[ 3881.068096][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3881.068096][   T73]      netdev_get_by_index+0x5e/0x80
[ 3881.068096][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3881.068096][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3881.068096][   T73]      ip6_route_add+0x1c/0x140
[ 3881.068096][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3881.068096][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3881.068096][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3881.068096][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3881.068096][   T73]      netlink_rcv_skb+0x130/0x360
[ 3881.068096][   T73]      netlink_unicast+0x449/0x710
[ 3881.068096][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3881.068096][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3881.068096][   T73]      ___sys_sendmsg+0xee/0x170
[ 3881.068096][   T73]      __sys_sendmsg+0xcd/0x170
[ 3881.068096][   T73]      do_syscall_64+0xc6/0x1e0
[ 3881.068096][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3881.068096][   T73] 
[ 3881.070097][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3881.070097][   T73]      netdev_get_by_index+0x5e/0x80
[ 3881.070097][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3881.070097][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3881.070097][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3881.070097][   T73]      ipv6_add_addr+0x411/0x2000
[ 3881.070097][   T73]      inet6_addr_add+0x30e/0xa40
[ 3881.070097][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3881.070097][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3881.070097][   T73]      netlink_rcv_skb+0x130/0x360
[ 3881.070097][   T73]      netlink_unicast+0x449/0x710
[ 3881.070097][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3881.070097][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3881.070097][   T73]      ___sys_sendmsg+0xee/0x170
[ 3881.070097][   T73]      __sys_sendmsg+0xcd/0x170
[ 3881.070097][   T73]      do_syscall_64+0xc6/0x1e0
[ 3881.070097][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3881.070097][   T73] 
[ 3881.072092][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3881.072092][   T73]      netdev_get_by_index+0x5e/0x80
[ 3881.072092][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3881.072092][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3881.072092][   T73]      ip6_route_add+0x1c/0x140
[ 3881.072092][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3881.072092][   T73]      addrconf_add_dev+0xe2/0x170
[ 3881.072092][   T73]      inet6_addr_add+0x12f/0xa40
[ 3881.072092][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3881.072092][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3881.072092][   T73]      netlink_rcv_skb+0x130/0x360
[ 3881.072092][   T73]      netlink_unicast+0x449/0x710
[ 3881.072092][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3881.072092][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3881.072092][   T73]      ___sys_sendmsg+0xee/0x170
[ 3881.072092][   T73]      __sys_sendmsg+0xcd/0x170
[ 3881.072092][   T73]      do_syscall_64+0xc6/0x1e0
[ 3881.072092][   T73] 
[ 3881.074243][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3881.074243][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3881.074243][   T73]      ipv6_find_idev+0x102/0x170
[ 3881.074243][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3881.074243][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3881.074243][   T73]      netlink_rcv_skb+0x130/0x360
[ 3881.074243][   T73]      netlink_unicast+0x449/0x710
[ 3881.074243][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3881.074243][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3881.074243][   T73]      ___sys_sendmsg+0xee/0x170
[ 3881.074243][   T73]      __sys_sendmsg+0xcd/0x170
[ 3881.074243][   T73]      do_syscall_64+0xc6/0x1e0
[ 3881.074243][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3881.074243][   T73] 
[ 3881.075980][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3881.075980][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3881.075980][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3881.075980][   T73]      ipv6_find_idev+0x102/0x170
[ 3881.075980][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3881.075980][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3881.075980][   T73]      netlink_rcv_skb+0x130/0x360
[ 3881.075980][   T73]      netlink_unicast+0x449/0x710
[ 3881.075980][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3881.075980][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3881.075980][   T73]      ___sys_sendmsg+0xee/0x170
[ 3881.075980][   T73]      __sys_sendmsg+0xcd/0x170
[ 3881.075980][   T73]      do_syscall_64+0xc6/0x1e0
[ 3881.075980][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3881.075980][   T73] 
[ 3891.319754][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3891.320177][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3891.320177][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3891.320177][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3891.320177][   T73]      fib6_nh_init+0xa22/0x1580
[ 3891.320177][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3891.320177][   T73]      ip6_route_add+0x1c/0x140
[ 3891.320177][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3891.320177][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3891.320177][   T73]      netlink_rcv_skb+0x130/0x360
[ 3891.320177][   T73]      netlink_unicast+0x449/0x710
[ 3891.320177][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3891.320177][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3891.320177][   T73]      ___sys_sendmsg+0xee/0x170
[ 3891.320177][   T73]      __sys_sendmsg+0xcd/0x170
[ 3891.320177][   T73]      do_syscall_64+0xc6/0x1e0
[ 3891.320177][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3891.320177][   T73] 
[ 3891.322086][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3891.322086][   T73]      dst_init+0x84/0x4a0
[ 3891.322086][   T73]      dst_alloc+0x97/0x150
[ 3891.322086][   T73]      ip6_dst_alloc+0x23/0x90
[ 3891.322086][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3891.322086][   T73]      ip6_pol_route+0x56f/0x840
[ 3891.322086][   T73]      fib6_rule_lookup+0x456/0x630
[ 3891.322086][   T73]      ip6_route_input+0x59c/0xa50
[ 3891.322086][   T73]      ipv6_rcv+0x397/0x810
[ 3891.322086][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3891.322086][   T73]      process_backlog+0x101/0x620
[ 3891.322086][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3891.322086][   T73]      net_rx_action+0x495/0xbe0
[ 3891.322086][   T73]      __do_softirq+0x1b5/0x7f6
[ 3891.322086][   T73] 
[ 3891.323746][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3891.323746][   T73]      netdev_get_by_index+0x5e/0x80
[ 3891.323746][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3891.323746][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3891.323746][   T73]      ip6_route_add+0x1c/0x140
[ 3891.323746][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3891.323746][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3891.323746][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3891.323746][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3891.323746][   T73]      netlink_rcv_skb+0x130/0x360
[ 3891.323746][   T73]      netlink_unicast+0x449/0x710
[ 3891.323746][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3891.323746][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3891.323746][   T73]      ___sys_sendmsg+0xee/0x170
[ 3891.323746][   T73]      __sys_sendmsg+0xcd/0x170
[ 3891.323746][   T73]      do_syscall_64+0xc6/0x1e0
[ 3891.323746][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3891.323746][   T73] 
[ 3891.325729][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3891.325729][   T73]      netdev_get_by_index+0x5e/0x80
[ 3891.325729][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3891.325729][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3891.325729][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3891.325729][   T73]      ipv6_add_addr+0x411/0x2000
[ 3891.325729][   T73]      inet6_addr_add+0x30e/0xa40
[ 3891.325729][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3891.325729][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3891.325729][   T73]      netlink_rcv_skb+0x130/0x360
[ 3891.325729][   T73]      netlink_unicast+0x449/0x710
[ 3891.325729][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3891.325729][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3891.325729][   T73]      ___sys_sendmsg+0xee/0x170
[ 3891.325729][   T73]      __sys_sendmsg+0xcd/0x170
[ 3891.325729][   T73]      do_syscall_64+0xc6/0x1e0
[ 3891.325729][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3891.325729][   T73] 
[ 3891.327729][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3891.327729][   T73]      netdev_get_by_index+0x5e/0x80
[ 3891.327729][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3891.327729][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3891.327729][   T73]      ip6_route_add+0x1c/0x140
[ 3891.327729][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3891.327729][   T73]      addrconf_add_dev+0xe2/0x170
[ 3891.327729][   T73]      inet6_addr_add+0x12f/0xa40
[ 3891.327729][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3891.327729][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3891.327729][   T73]      netlink_rcv_skb+0x130/0x360
[ 3891.327729][   T73]      netlink_unicast+0x449/0x710
[ 3891.327729][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3891.327729][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3891.327729][   T73]      ___sys_sendmsg+0xee/0x170
[ 3891.327729][   T73]      __sys_sendmsg+0xcd/0x170
[ 3891.327729][   T73]      do_syscall_64+0xc6/0x1e0
[ 3891.327729][   T73] 
[ 3891.329683][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3891.329683][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3891.329683][   T73]      ipv6_find_idev+0x102/0x170
[ 3891.329683][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3891.329683][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3891.329683][   T73]      netlink_rcv_skb+0x130/0x360
[ 3891.329683][   T73]      netlink_unicast+0x449/0x710
[ 3891.329683][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3891.329683][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3891.329683][   T73]      ___sys_sendmsg+0xee/0x170
[ 3891.329683][   T73]      __sys_sendmsg+0xcd/0x170
[ 3891.329683][   T73]      do_syscall_64+0xc6/0x1e0
[ 3891.329683][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3891.329683][   T73] 
[ 3891.331221][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3891.331221][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3891.331221][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3891.331221][   T73]      ipv6_find_idev+0x102/0x170
[ 3891.331221][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3891.331221][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3891.331221][   T73]      netlink_rcv_skb+0x130/0x360
[ 3891.331221][   T73]      netlink_unicast+0x449/0x710
[ 3891.331221][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3891.331221][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3891.331221][   T73]      ___sys_sendmsg+0xee/0x170
[ 3891.331221][   T73]      __sys_sendmsg+0xcd/0x170
[ 3891.331221][   T73]      do_syscall_64+0xc6/0x1e0
[ 3891.331221][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3891.331221][   T73] 
[ 3891.332920][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3891.333202][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3891.333202][   T73]      netdev_get_by_index+0x5e/0x80
[ 3891.333202][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3891.333202][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3891.333202][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3891.333202][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3891.333202][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3891.333202][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3891.333202][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3891.333202][   T73]      addrconf_dad_begin+0x310/0x670
[ 3891.333202][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3891.333202][   T73]      process_one_work+0x84d/0x18a0
[ 3891.333202][   T73]      worker_thread+0x587/0xd30
[ 3891.333202][   T73]      kthread+0x28a/0x350
[ 3891.333202][   T73]      ret_from_fork+0x31/0x70
[ 3891.333202][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3891.333202][   T73] 
[ 3891.335106][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3891.335106][   T73]      netdev_get_by_index+0x5e/0x80
[ 3891.335106][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3891.335106][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3891.335106][   T73]      ip6_route_add+0x1c/0x140
[ 3891.335106][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3891.335106][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3891.335106][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3891.335106][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3891.335106][   T73]      netlink_rcv_skb+0x130/0x360
[ 3891.335106][   T73]      netlink_unicast+0x449/0x710
[ 3891.335106][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3891.335106][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3891.335106][   T73]      ___sys_sendmsg+0xee/0x170
[ 3891.335106][   T73]      __sys_sendmsg+0xcd/0x170
[ 3891.335106][   T73]      do_syscall_64+0xc6/0x1e0
[ 3891.335106][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3891.335106][   T73] 
[ 3891.337117][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3891.337117][   T73]      netdev_get_by_index+0x5e/0x80
[ 3891.337117][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3891.337117][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3891.337117][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3891.337117][   T73]      ipv6_add_addr+0x411/0x2000
[ 3891.337117][   T73]      inet6_addr_add+0x30e/0xa40
[ 3891.337117][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3891.337117][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3891.337117][   T73]      netlink_rcv_skb+0x130/0x360
[ 3891.337117][   T73]      netlink_unicast+0x449/0x710
[ 3891.337117][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3891.337117][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3891.337117][   T73]      ___sys_sendmsg+0xee/0x170
[ 3891.337117][   T73]      __sys_sendmsg+0xcd/0x170
[ 3891.337117][   T73]      do_syscall_64+0xc6/0x1e0
[ 3891.337117][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3891.337117][   T73] 
[ 3891.339114][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3891.339114][   T73]      netdev_get_by_index+0x5e/0x80
[ 3891.339114][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3891.339114][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3891.339114][   T73]      ip6_route_add+0x1c/0x140
[ 3891.339114][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3891.339114][   T73]      addrconf_add_dev+0xe2/0x170
[ 3891.339114][   T73]      inet6_addr_add+0x12f/0xa40
[ 3891.339114][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3891.339114][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3891.339114][   T73]      netlink_rcv_skb+0x130/0x360
[ 3891.339114][   T73]      netlink_unicast+0x449/0x710
[ 3891.339114][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3891.339114][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3891.339114][   T73]      ___sys_sendmsg+0xee/0x170
[ 3891.339114][   T73]      __sys_sendmsg+0xcd/0x170
[ 3891.339114][   T73]      do_syscall_64+0xc6/0x1e0
[ 3891.339114][   T73] 
[ 3891.341066][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3891.341066][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3891.341066][   T73]      ipv6_find_idev+0x102/0x170
[ 3891.341066][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3891.341066][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3891.341066][   T73]      netlink_rcv_skb+0x130/0x360
[ 3891.341066][   T73]      netlink_unicast+0x449/0x710
[ 3891.341066][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3891.341066][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3891.341066][   T73]      ___sys_sendmsg+0xee/0x170
[ 3891.341066][   T73]      __sys_sendmsg+0xcd/0x170
[ 3891.341066][   T73]      do_syscall_64+0xc6/0x1e0
[ 3891.341066][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3891.341066][   T73] 
[ 3891.342602][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3891.342602][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3891.342602][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3891.342602][   T73]      ipv6_find_idev+0x102/0x170
[ 3891.342602][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3891.342602][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3891.342602][   T73]      netlink_rcv_skb+0x130/0x360
[ 3891.342602][   T73]      netlink_unicast+0x449/0x710
[ 3891.342602][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3891.342602][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3891.342602][   T73]      ___sys_sendmsg+0xee/0x170
[ 3891.342602][   T73]      __sys_sendmsg+0xcd/0x170
[ 3891.342602][   T73]      do_syscall_64+0xc6/0x1e0
[ 3891.342602][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3891.342602][   T73] 
[ 3891.344287][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3891.344559][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3891.344559][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3891.344559][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3891.344559][   T73]      fib6_nh_init+0xa22/0x1580
[ 3891.344559][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3891.344559][   T73]      ip6_route_add+0x1c/0x140
[ 3891.344559][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3891.344559][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3891.344559][   T73]      netlink_rcv_skb+0x130/0x360
[ 3891.344559][   T73]      netlink_unicast+0x449/0x710
[ 3891.344559][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3891.344559][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3891.344559][   T73]      ___sys_sendmsg+0xee/0x170
[ 3891.344559][   T73]      __sys_sendmsg+0xcd/0x170
[ 3891.344559][   T73]      do_syscall_64+0xc6/0x1e0
[ 3891.344559][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3891.344559][   T73] 
[ 3891.346564][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3891.346564][   T73]      dst_init+0x84/0x4a0
[ 3891.346564][   T73]      dst_alloc+0x97/0x150
[ 3891.346564][   T73]      ip6_dst_alloc+0x23/0x90
[ 3891.346564][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3891.346564][   T73]      ip6_pol_route+0x56f/0x840
[ 3891.346564][   T73]      fib6_rule_lookup+0x456/0x630
[ 3891.346564][   T73]      ip6_route_input+0x59c/0xa50
[ 3891.346564][   T73]      ipv6_rcv+0x397/0x810
[ 3891.346564][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3891.346564][   T73]      process_backlog+0x101/0x620
[ 3891.346564][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3891.346564][   T73]      net_rx_action+0x495/0xbe0
[ 3891.346564][   T73]      __do_softirq+0x1b5/0x7f6
[ 3891.346564][   T73] 
[ 3891.348438][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3891.348438][   T73]      netdev_get_by_index+0x5e/0x80
[ 3891.348438][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3891.348438][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3891.348438][   T73]      ip6_route_add+0x1c/0x140
[ 3891.348438][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3891.348438][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3891.348438][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3891.348438][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3891.348438][   T73]      netlink_rcv_skb+0x130/0x360
[ 3891.348438][   T73]      netlink_unicast+0x449/0x710
[ 3891.348438][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3891.348438][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3891.348438][   T73]      ___sys_sendmsg+0xee/0x170
[ 3891.348438][   T73]      __sys_sendmsg+0xcd/0x170
[ 3891.348438][   T73]      do_syscall_64+0xc6/0x1e0
[ 3891.348438][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3891.348438][   T73] 
[ 3891.350677][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3891.350677][   T73]      netdev_get_by_index+0x5e/0x80
[ 3891.350677][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3891.350677][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3891.350677][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3891.350677][   T73]      ipv6_add_addr+0x411/0x2000
[ 3891.350677][   T73]      inet6_addr_add+0x30e/0xa40
[ 3891.350677][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3891.350677][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3891.350677][   T73]      netlink_rcv_skb+0x130/0x360
[ 3891.350677][   T73]      netlink_unicast+0x449/0x710
[ 3891.350677][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3891.350677][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3891.350677][   T73]      ___sys_sendmsg+0xee/0x170
[ 3891.350677][   T73]      __sys_sendmsg+0xcd/0x170
[ 3891.350677][   T73]      do_syscall_64+0xc6/0x1e0
[ 3891.350677][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3891.350677][   T73] 
[ 3891.352926][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3891.352926][   T73]      netdev_get_by_index+0x5e/0x80
[ 3891.352926][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3891.352926][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3891.352926][   T73]      ip6_route_add+0x1c/0x140
[ 3891.352926][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3891.352926][   T73]      addrconf_add_dev+0xe2/0x170
[ 3891.352926][   T73]      inet6_addr_add+0x12f/0xa40
[ 3891.352926][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3891.352926][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3891.352926][   T73]      netlink_rcv_skb+0x130/0x360
[ 3891.352926][   T73]      netlink_unicast+0x449/0x710
[ 3891.352926][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3891.352926][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3891.352926][   T73]      ___sys_sendmsg+0xee/0x170
[ 3891.352926][   T73]      __sys_sendmsg+0xcd/0x170
[ 3891.352926][   T73]      do_syscall_64+0xc6/0x1e0
[ 3891.352926][   T73] 
[ 3891.355089][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3891.355089][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3891.355089][   T73]      ipv6_find_idev+0x102/0x170
[ 3891.355089][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3891.355089][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3891.355089][   T73]      netlink_rcv_skb+0x130/0x360
[ 3891.355089][   T73]      netlink_unicast+0x449/0x710
[ 3891.355089][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3891.355089][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3891.355089][   T73]      ___sys_sendmsg+0xee/0x170
[ 3891.355089][   T73]      __sys_sendmsg+0xcd/0x170
[ 3891.355089][   T73]      do_syscall_64+0xc6/0x1e0
[ 3891.355089][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3891.355089][   T73] 
[ 3891.356883][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3891.356883][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3891.356883][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3891.356883][   T73]      ipv6_find_idev+0x102/0x170
[ 3891.356883][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3891.356883][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3891.356883][   T73]      netlink_rcv_skb+0x130/0x360
[ 3891.356883][   T73]      netlink_unicast+0x449/0x710
[ 3891.356883][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3891.356883][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3891.356883][   T73]      ___sys_sendmsg+0xee/0x170
[ 3891.356883][   T73]      __sys_sendmsg+0xcd/0x170
[ 3891.356883][   T73]      do_syscall_64+0xc6/0x1e0
[ 3891.356883][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3891.356883][   T73] 
[ 3891.358809][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3891.359090][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3891.359090][   T73]      netdev_get_by_index+0x5e/0x80
[ 3891.359090][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3891.359090][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3891.359090][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3891.359090][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3891.359090][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3891.359090][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3891.359090][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3891.359090][   T73]      addrconf_dad_begin+0x310/0x670
[ 3891.359090][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3891.359090][   T73]      process_one_work+0x84d/0x18a0
[ 3891.359090][   T73]      worker_thread+0x587/0xd30
[ 3891.359090][   T73]      kthread+0x28a/0x350
[ 3891.359090][   T73]      ret_from_fork+0x31/0x70
[ 3891.359090][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3891.359090][   T73] 
[ 3891.361231][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3891.361231][   T73]      netdev_get_by_index+0x5e/0x80
[ 3891.361231][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3891.361231][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3891.361231][   T73]      ip6_route_add+0x1c/0x140
[ 3891.361231][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3891.361231][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3891.361231][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3891.361231][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3891.361231][   T73]      netlink_rcv_skb+0x130/0x360
[ 3891.361231][   T73]      netlink_unicast+0x449/0x710
[ 3891.361231][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3891.361231][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3891.361231][   T73]      ___sys_sendmsg+0xee/0x170
[ 3891.361231][   T73]      __sys_sendmsg+0xcd/0x170
[ 3891.361231][   T73]      do_syscall_64+0xc6/0x1e0
[ 3891.361231][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3891.361231][   T73] 
[ 3891.363405][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3891.363405][   T73]      netdev_get_by_index+0x5e/0x80
[ 3891.363405][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3891.363405][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3891.363405][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3891.363405][   T73]      ipv6_add_addr+0x411/0x2000
[ 3891.363405][   T73]      inet6_addr_add+0x30e/0xa40
[ 3891.363405][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3891.363405][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3891.363405][   T73]      netlink_rcv_skb+0x130/0x360
[ 3891.363405][   T73]      netlink_unicast+0x449/0x710
[ 3891.363405][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3891.363405][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3891.363405][   T73]      ___sys_sendmsg+0xee/0x170
[ 3891.363405][   T73]      __sys_sendmsg+0xcd/0x170
[ 3891.363405][   T73]      do_syscall_64+0xc6/0x1e0
[ 3891.363405][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3891.363405][   T73] 
[ 3891.365660][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3891.365660][   T73]      netdev_get_by_index+0x5e/0x80
[ 3891.365660][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3891.365660][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3891.365660][   T73]      ip6_route_add+0x1c/0x140
[ 3891.365660][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3891.365660][   T73]      addrconf_add_dev+0xe2/0x170
[ 3891.365660][   T73]      inet6_addr_add+0x12f/0xa40
[ 3891.365660][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3891.365660][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3891.365660][   T73]      netlink_rcv_skb+0x130/0x360
[ 3891.365660][   T73]      netlink_unicast+0x449/0x710
[ 3891.365660][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3891.365660][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3891.365660][   T73]      ___sys_sendmsg+0xee/0x170
[ 3891.365660][   T73]      __sys_sendmsg+0xcd/0x170
[ 3891.365660][   T73]      do_syscall_64+0xc6/0x1e0
[ 3891.365660][   T73] 
[ 3891.367942][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3891.367942][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3891.367942][   T73]      ipv6_find_idev+0x102/0x170
[ 3891.367942][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3891.367942][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3891.367942][   T73]      netlink_rcv_skb+0x130/0x360
[ 3891.367942][   T73]      netlink_unicast+0x449/0x710
[ 3891.367942][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3891.367942][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3891.367942][   T73]      ___sys_sendmsg+0xee/0x170
[ 3891.367942][   T73]      __sys_sendmsg+0xcd/0x170
[ 3891.367942][   T73]      do_syscall_64+0xc6/0x1e0
[ 3891.367942][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3891.367942][   T73] 
[ 3891.369666][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3891.369666][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3891.369666][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3891.369666][   T73]      ipv6_find_idev+0x102/0x170
[ 3891.369666][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3891.369666][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3891.369666][   T73]      netlink_rcv_skb+0x130/0x360
[ 3891.369666][   T73]      netlink_unicast+0x449/0x710
[ 3891.369666][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3891.369666][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3891.369666][   T73]      ___sys_sendmsg+0xee/0x170
[ 3891.369666][   T73]      __sys_sendmsg+0xcd/0x170
[ 3891.369666][   T73]      do_syscall_64+0xc6/0x1e0
[ 3891.369666][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3891.369666][   T73] 
[ 3901.407775][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3901.408212][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3901.408212][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3901.408212][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3901.408212][   T73]      fib6_nh_init+0xa22/0x1580
[ 3901.408212][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3901.408212][   T73]      ip6_route_add+0x1c/0x140
[ 3901.408212][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3901.408212][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3901.408212][   T73]      netlink_rcv_skb+0x130/0x360
[ 3901.408212][   T73]      netlink_unicast+0x449/0x710
[ 3901.408212][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3901.408212][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3901.408212][   T73]      ___sys_sendmsg+0xee/0x170
[ 3901.408212][   T73]      __sys_sendmsg+0xcd/0x170
[ 3901.408212][   T73]      do_syscall_64+0xc6/0x1e0
[ 3901.408212][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3901.408212][   T73] 
[ 3901.410153][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3901.410153][   T73]      dst_init+0x84/0x4a0
[ 3901.410153][   T73]      dst_alloc+0x97/0x150
[ 3901.410153][   T73]      ip6_dst_alloc+0x23/0x90
[ 3901.410153][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3901.410153][   T73]      ip6_pol_route+0x56f/0x840
[ 3901.410153][   T73]      fib6_rule_lookup+0x456/0x630
[ 3901.410153][   T73]      ip6_route_input+0x59c/0xa50
[ 3901.410153][   T73]      ipv6_rcv+0x397/0x810
[ 3901.410153][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3901.410153][   T73]      process_backlog+0x101/0x620
[ 3901.410153][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3901.410153][   T73]      net_rx_action+0x495/0xbe0
[ 3901.410153][   T73]      __do_softirq+0x1b5/0x7f6
[ 3901.410153][   T73] 
[ 3901.411811][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3901.411811][   T73]      netdev_get_by_index+0x5e/0x80
[ 3901.411811][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3901.411811][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3901.411811][   T73]      ip6_route_add+0x1c/0x140
[ 3901.411811][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3901.411811][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3901.411811][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3901.411811][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3901.411811][   T73]      netlink_rcv_skb+0x130/0x360
[ 3901.411811][   T73]      netlink_unicast+0x449/0x710
[ 3901.411811][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3901.411811][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3901.411811][   T73]      ___sys_sendmsg+0xee/0x170
[ 3901.411811][   T73]      __sys_sendmsg+0xcd/0x170
[ 3901.411811][   T73]      do_syscall_64+0xc6/0x1e0
[ 3901.411811][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3901.411811][   T73] 
[ 3901.413844][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3901.413844][   T73]      netdev_get_by_index+0x5e/0x80
[ 3901.413844][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3901.413844][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3901.413844][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3901.413844][   T73]      ipv6_add_addr+0x411/0x2000
[ 3901.413844][   T73]      inet6_addr_add+0x30e/0xa40
[ 3901.413844][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3901.413844][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3901.413844][   T73]      netlink_rcv_skb+0x130/0x360
[ 3901.413844][   T73]      netlink_unicast+0x449/0x710
[ 3901.413844][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3901.413844][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3901.413844][   T73]      ___sys_sendmsg+0xee/0x170
[ 3901.413844][   T73]      __sys_sendmsg+0xcd/0x170
[ 3901.413844][   T73]      do_syscall_64+0xc6/0x1e0
[ 3901.413844][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3901.413844][   T73] 
[ 3901.415888][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3901.415888][   T73]      netdev_get_by_index+0x5e/0x80
[ 3901.415888][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3901.415888][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3901.415888][   T73]      ip6_route_add+0x1c/0x140
[ 3901.415888][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3901.415888][   T73]      addrconf_add_dev+0xe2/0x170
[ 3901.415888][   T73]      inet6_addr_add+0x12f/0xa40
[ 3901.415888][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3901.415888][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3901.415888][   T73]      netlink_rcv_skb+0x130/0x360
[ 3901.415888][   T73]      netlink_unicast+0x449/0x710
[ 3901.415888][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3901.415888][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3901.415888][   T73]      ___sys_sendmsg+0xee/0x170
[ 3901.415888][   T73]      __sys_sendmsg+0xcd/0x170
[ 3901.415888][   T73]      do_syscall_64+0xc6/0x1e0
[ 3901.415888][   T73] 
[ 3901.417927][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3901.417927][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3901.417927][   T73]      ipv6_find_idev+0x102/0x170
[ 3901.417927][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3901.417927][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3901.417927][   T73]      netlink_rcv_skb+0x130/0x360
[ 3901.417927][   T73]      netlink_unicast+0x449/0x710
[ 3901.417927][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3901.417927][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3901.417927][   T73]      ___sys_sendmsg+0xee/0x170
[ 3901.417927][   T73]      __sys_sendmsg+0xcd/0x170
[ 3901.417927][   T73]      do_syscall_64+0xc6/0x1e0
[ 3901.417927][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3901.417927][   T73] 
[ 3901.419529][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3901.419529][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3901.419529][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3901.419529][   T73]      ipv6_find_idev+0x102/0x170
[ 3901.419529][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3901.419529][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3901.419529][   T73]      netlink_rcv_skb+0x130/0x360
[ 3901.419529][   T73]      netlink_unicast+0x449/0x710
[ 3901.419529][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3901.419529][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3901.419529][   T73]      ___sys_sendmsg+0xee/0x170
[ 3901.419529][   T73]      __sys_sendmsg+0xcd/0x170
[ 3901.419529][   T73]      do_syscall_64+0xc6/0x1e0
[ 3901.419529][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3901.419529][   T73] 
[ 3901.421279][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3901.421564][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3901.421564][   T73]      netdev_get_by_index+0x5e/0x80
[ 3901.421564][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3901.421564][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3901.421564][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3901.421564][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3901.421564][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3901.421564][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3901.421564][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3901.421564][   T73]      addrconf_dad_begin+0x310/0x670
[ 3901.421564][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3901.421564][   T73]      process_one_work+0x84d/0x18a0
[ 3901.421564][   T73]      worker_thread+0x587/0xd30
[ 3901.421564][   T73]      kthread+0x28a/0x350
[ 3901.421564][   T73]      ret_from_fork+0x31/0x70
[ 3901.421564][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3901.421564][   T73] 
[ 3901.423535][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3901.423535][   T73]      netdev_get_by_index+0x5e/0x80
[ 3901.423535][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3901.423535][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3901.423535][   T73]      ip6_route_add+0x1c/0x140
[ 3901.423535][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3901.423535][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3901.423535][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3901.423535][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3901.423535][   T73]      netlink_rcv_skb+0x130/0x360
[ 3901.423535][   T73]      netlink_unicast+0x449/0x710
[ 3901.423535][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3901.423535][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3901.423535][   T73]      ___sys_sendmsg+0xee/0x170
[ 3901.423535][   T73]      __sys_sendmsg+0xcd/0x170
[ 3901.423535][   T73]      do_syscall_64+0xc6/0x1e0
[ 3901.423535][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3901.423535][   T73] 
[ 3901.425605][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3901.425605][   T73]      netdev_get_by_index+0x5e/0x80
[ 3901.425605][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3901.425605][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3901.425605][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3901.425605][   T73]      ipv6_add_addr+0x411/0x2000
[ 3901.425605][   T73]      inet6_addr_add+0x30e/0xa40
[ 3901.425605][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3901.425605][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3901.425605][   T73]      netlink_rcv_skb+0x130/0x360
[ 3901.425605][   T73]      netlink_unicast+0x449/0x710
[ 3901.425605][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3901.425605][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3901.425605][   T73]      ___sys_sendmsg+0xee/0x170
[ 3901.425605][   T73]      __sys_sendmsg+0xcd/0x170
[ 3901.425605][   T73]      do_syscall_64+0xc6/0x1e0
[ 3901.425605][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3901.425605][   T73] 
[ 3901.427667][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3901.427667][   T73]      netdev_get_by_index+0x5e/0x80
[ 3901.427667][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3901.427667][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3901.427667][   T73]      ip6_route_add+0x1c/0x140
[ 3901.427667][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3901.427667][   T73]      addrconf_add_dev+0xe2/0x170
[ 3901.427667][   T73]      inet6_addr_add+0x12f/0xa40
[ 3901.427667][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3901.427667][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3901.427667][   T73]      netlink_rcv_skb+0x130/0x360
[ 3901.427667][   T73]      netlink_unicast+0x449/0x710
[ 3901.427667][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3901.427667][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3901.427667][   T73]      ___sys_sendmsg+0xee/0x170
[ 3901.427667][   T73]      __sys_sendmsg+0xcd/0x170
[ 3901.427667][   T73]      do_syscall_64+0xc6/0x1e0
[ 3901.427667][   T73] 
[ 3901.429675][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3901.429675][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3901.429675][   T73]      ipv6_find_idev+0x102/0x170
[ 3901.429675][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3901.429675][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3901.429675][   T73]      netlink_rcv_skb+0x130/0x360
[ 3901.429675][   T73]      netlink_unicast+0x449/0x710
[ 3901.429675][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3901.429675][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3901.429675][   T73]      ___sys_sendmsg+0xee/0x170
[ 3901.429675][   T73]      __sys_sendmsg+0xcd/0x170
[ 3901.429675][   T73]      do_syscall_64+0xc6/0x1e0
[ 3901.429675][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3901.429675][   T73] 
[ 3901.431228][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3901.431228][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3901.431228][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3901.431228][   T73]      ipv6_find_idev+0x102/0x170
[ 3901.431228][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3901.431228][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3901.431228][   T73]      netlink_rcv_skb+0x130/0x360
[ 3901.431228][   T73]      netlink_unicast+0x449/0x710
[ 3901.431228][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3901.431228][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3901.431228][   T73]      ___sys_sendmsg+0xee/0x170
[ 3901.431228][   T73]      __sys_sendmsg+0xcd/0x170
[ 3901.431228][   T73]      do_syscall_64+0xc6/0x1e0
[ 3901.431228][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3901.431228][   T73] 
[ 3901.432952][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3901.433228][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3901.433228][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3901.433228][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3901.433228][   T73]      fib6_nh_init+0xa22/0x1580
[ 3901.433228][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3901.433228][   T73]      ip6_route_add+0x1c/0x140
[ 3901.433228][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3901.433228][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3901.433228][   T73]      netlink_rcv_skb+0x130/0x360
[ 3901.433228][   T73]      netlink_unicast+0x449/0x710
[ 3901.433228][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3901.433228][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3901.433228][   T73]      ___sys_sendmsg+0xee/0x170
[ 3901.433228][   T73]      __sys_sendmsg+0xcd/0x170
[ 3901.433228][   T73]      do_syscall_64+0xc6/0x1e0
[ 3901.433228][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3901.433228][   T73] 
[ 3901.435341][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3901.435341][   T73]      dst_init+0x84/0x4a0
[ 3901.435341][   T73]      dst_alloc+0x97/0x150
[ 3901.435341][   T73]      ip6_dst_alloc+0x23/0x90
[ 3901.435341][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3901.435341][   T73]      ip6_pol_route+0x56f/0x840
[ 3901.435341][   T73]      fib6_rule_lookup+0x456/0x630
[ 3901.435341][   T73]      ip6_route_input+0x59c/0xa50
[ 3901.435341][   T73]      ipv6_rcv+0x397/0x810
[ 3901.435341][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3901.435341][   T73]      process_backlog+0x101/0x620
[ 3901.435341][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3901.435341][   T73]      net_rx_action+0x495/0xbe0
[ 3901.435341][   T73]      __do_softirq+0x1b5/0x7f6
[ 3901.435341][   T73] 
[ 3901.437217][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3901.437217][   T73]      netdev_get_by_index+0x5e/0x80
[ 3901.437217][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3901.437217][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3901.437217][   T73]      ip6_route_add+0x1c/0x140
[ 3901.437217][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3901.437217][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3901.437217][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3901.437217][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3901.437217][   T73]      netlink_rcv_skb+0x130/0x360
[ 3901.437217][   T73]      netlink_unicast+0x449/0x710
[ 3901.437217][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3901.437217][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3901.437217][   T73]      ___sys_sendmsg+0xee/0x170
[ 3901.437217][   T73]      __sys_sendmsg+0xcd/0x170
[ 3901.437217][   T73]      do_syscall_64+0xc6/0x1e0
[ 3901.437217][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3901.437217][   T73] 
[ 3901.439485][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3901.439485][   T73]      netdev_get_by_index+0x5e/0x80
[ 3901.439485][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3901.439485][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3901.439485][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3901.439485][   T73]      ipv6_add_addr+0x411/0x2000
[ 3901.439485][   T73]      inet6_addr_add+0x30e/0xa40
[ 3901.439485][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3901.439485][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3901.439485][   T73]      netlink_rcv_skb+0x130/0x360
[ 3901.439485][   T73]      netlink_unicast+0x449/0x710
[ 3901.439485][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3901.439485][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3901.439485][   T73]      ___sys_sendmsg+0xee/0x170
[ 3901.439485][   T73]      __sys_sendmsg+0xcd/0x170
[ 3901.439485][   T73]      do_syscall_64+0xc6/0x1e0
[ 3901.439485][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3901.439485][   T73] 
[ 3901.441828][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3901.441828][   T73]      netdev_get_by_index+0x5e/0x80
[ 3901.441828][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3901.441828][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3901.441828][   T73]      ip6_route_add+0x1c/0x140
[ 3901.441828][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3901.441828][   T73]      addrconf_add_dev+0xe2/0x170
[ 3901.441828][   T73]      inet6_addr_add+0x12f/0xa40
[ 3901.441828][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3901.441828][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3901.441828][   T73]      netlink_rcv_skb+0x130/0x360
[ 3901.441828][   T73]      netlink_unicast+0x449/0x710
[ 3901.441828][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3901.441828][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3901.441828][   T73]      ___sys_sendmsg+0xee/0x170
[ 3901.441828][   T73]      __sys_sendmsg+0xcd/0x170
[ 3901.441828][   T73]      do_syscall_64+0xc6/0x1e0
[ 3901.441828][   T73] 
[ 3901.444060][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3901.444060][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3901.444060][   T73]      ipv6_find_idev+0x102/0x170
[ 3901.444060][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3901.444060][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3901.444060][   T73]      netlink_rcv_skb+0x130/0x360
[ 3901.444060][   T73]      netlink_unicast+0x449/0x710
[ 3901.444060][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3901.444060][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3901.444060][   T73]      ___sys_sendmsg+0xee/0x170
[ 3901.444060][   T73]      __sys_sendmsg+0xcd/0x170
[ 3901.444060][   T73]      do_syscall_64+0xc6/0x1e0
[ 3901.444060][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3901.444060][   T73] 
[ 3901.445742][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3901.445742][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3901.445742][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3901.445742][   T73]      ipv6_find_idev+0x102/0x170
[ 3901.445742][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3901.445742][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3901.445742][   T73]      netlink_rcv_skb+0x130/0x360
[ 3901.445742][   T73]      netlink_unicast+0x449/0x710
[ 3901.445742][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3901.445742][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3901.445742][   T73]      ___sys_sendmsg+0xee/0x170
[ 3901.445742][   T73]      __sys_sendmsg+0xcd/0x170
[ 3901.445742][   T73]      do_syscall_64+0xc6/0x1e0
[ 3901.445742][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3901.445742][   T73] 
[ 3901.447716][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3901.447995][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3901.447995][   T73]      netdev_get_by_index+0x5e/0x80
[ 3901.447995][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3901.447995][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3901.447995][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3901.447995][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3901.447995][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3901.447995][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3901.447995][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3901.447995][   T73]      addrconf_dad_begin+0x310/0x670
[ 3901.447995][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3901.447995][   T73]      process_one_work+0x84d/0x18a0
[ 3901.447995][   T73]      worker_thread+0x587/0xd30
[ 3901.447995][   T73]      kthread+0x28a/0x350
[ 3901.447995][   T73]      ret_from_fork+0x31/0x70
[ 3901.447995][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3901.447995][   T73] 
[ 3901.450175][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3901.450175][   T73]      netdev_get_by_index+0x5e/0x80
[ 3901.450175][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3901.450175][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3901.450175][   T73]      ip6_route_add+0x1c/0x140
[ 3901.450175][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3901.450175][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3901.450175][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3901.450175][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3901.450175][   T73]      netlink_rcv_skb+0x130/0x360
[ 3901.450175][   T73]      netlink_unicast+0x449/0x710
[ 3901.450175][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3901.450175][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3901.450175][   T73]      ___sys_sendmsg+0xee/0x170
[ 3901.450175][   T73]      __sys_sendmsg+0xcd/0x170
[ 3901.450175][   T73]      do_syscall_64+0xc6/0x1e0
[ 3901.450175][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3901.450175][   T73] 
[ 3901.452503][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3901.452503][   T73]      netdev_get_by_index+0x5e/0x80
[ 3901.452503][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3901.452503][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3901.452503][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3901.452503][   T73]      ipv6_add_addr+0x411/0x2000
[ 3901.452503][   T73]      inet6_addr_add+0x30e/0xa40
[ 3901.452503][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3901.452503][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3901.452503][   T73]      netlink_rcv_skb+0x130/0x360
[ 3901.452503][   T73]      netlink_unicast+0x449/0x710
[ 3901.452503][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3901.452503][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3901.452503][   T73]      ___sys_sendmsg+0xee/0x170
[ 3901.452503][   T73]      __sys_sendmsg+0xcd/0x170
[ 3901.452503][   T73]      do_syscall_64+0xc6/0x1e0
[ 3901.452503][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3901.452503][   T73] 
[ 3901.454713][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3901.454713][   T73]      netdev_get_by_index+0x5e/0x80
[ 3901.454713][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3901.454713][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3901.454713][   T73]      ip6_route_add+0x1c/0x140
[ 3901.454713][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3901.454713][   T73]      addrconf_add_dev+0xe2/0x170
[ 3901.454713][   T73]      inet6_addr_add+0x12f/0xa40
[ 3901.454713][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3901.454713][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3901.454713][   T73]      netlink_rcv_skb+0x130/0x360
[ 3901.454713][   T73]      netlink_unicast+0x449/0x710
[ 3901.454713][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3901.454713][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3901.454713][   T73]      ___sys_sendmsg+0xee/0x170
[ 3901.454713][   T73]      __sys_sendmsg+0xcd/0x170
[ 3901.454713][   T73]      do_syscall_64+0xc6/0x1e0
[ 3901.454713][   T73] 
[ 3901.456977][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3901.456977][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3901.456977][   T73]      ipv6_find_idev+0x102/0x170
[ 3901.456977][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3901.456977][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3901.456977][   T73]      netlink_rcv_skb+0x130/0x360
[ 3901.456977][   T73]      netlink_unicast+0x449/0x710
[ 3901.456977][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3901.456977][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3901.456977][   T73]      ___sys_sendmsg+0xee/0x170
[ 3901.456977][   T73]      __sys_sendmsg+0xcd/0x170
[ 3901.456977][   T73]      do_syscall_64+0xc6/0x1e0
[ 3901.456977][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3901.456977][   T73] 
[ 3901.458716][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3901.458716][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3901.458716][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3901.458716][   T73]      ipv6_find_idev+0x102/0x170
[ 3901.458716][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3901.458716][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3901.458716][   T73]      netlink_rcv_skb+0x130/0x360
[ 3901.458716][   T73]      netlink_unicast+0x449/0x710
[ 3901.458716][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3901.458716][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3901.458716][   T73]      ___sys_sendmsg+0xee/0x170
[ 3901.458716][   T73]      __sys_sendmsg+0xcd/0x170
[ 3901.458716][   T73]      do_syscall_64+0xc6/0x1e0
[ 3901.458716][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3901.458716][   T73] 
[ 3911.567763][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3911.568283][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3911.568283][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3911.568283][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3911.568283][   T73]      fib6_nh_init+0xa22/0x1580
[ 3911.568283][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3911.568283][   T73]      ip6_route_add+0x1c/0x140
[ 3911.568283][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3911.568283][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3911.568283][   T73]      netlink_rcv_skb+0x130/0x360
[ 3911.568283][   T73]      netlink_unicast+0x449/0x710
[ 3911.568283][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3911.568283][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3911.568283][   T73]      ___sys_sendmsg+0xee/0x170
[ 3911.568283][   T73]      __sys_sendmsg+0xcd/0x170
[ 3911.568283][   T73]      do_syscall_64+0xc6/0x1e0
[ 3911.568283][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3911.568283][   T73] 
[ 3911.570318][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3911.570318][   T73]      dst_init+0x84/0x4a0
[ 3911.570318][   T73]      dst_alloc+0x97/0x150
[ 3911.570318][   T73]      ip6_dst_alloc+0x23/0x90
[ 3911.570318][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3911.570318][   T73]      ip6_pol_route+0x56f/0x840
[ 3911.570318][   T73]      fib6_rule_lookup+0x456/0x630
[ 3911.570318][   T73]      ip6_route_input+0x59c/0xa50
[ 3911.570318][   T73]      ipv6_rcv+0x397/0x810
[ 3911.570318][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3911.570318][   T73]      process_backlog+0x101/0x620
[ 3911.570318][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3911.570318][   T73]      net_rx_action+0x495/0xbe0
[ 3911.570318][   T73]      __do_softirq+0x1b5/0x7f6
[ 3911.570318][   T73] 
[ 3911.572002][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3911.572002][   T73]      netdev_get_by_index+0x5e/0x80
[ 3911.572002][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3911.572002][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3911.572002][   T73]      ip6_route_add+0x1c/0x140
[ 3911.572002][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3911.572002][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3911.572002][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3911.572002][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3911.572002][   T73]      netlink_rcv_skb+0x130/0x360
[ 3911.572002][   T73]      netlink_unicast+0x449/0x710
[ 3911.572002][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3911.572002][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3911.572002][   T73]      ___sys_sendmsg+0xee/0x170
[ 3911.572002][   T73]      __sys_sendmsg+0xcd/0x170
[ 3911.572002][   T73]      do_syscall_64+0xc6/0x1e0
[ 3911.572002][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3911.572002][   T73] 
[ 3911.574056][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3911.574056][   T73]      netdev_get_by_index+0x5e/0x80
[ 3911.574056][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3911.574056][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3911.574056][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3911.574056][   T73]      ipv6_add_addr+0x411/0x2000
[ 3911.574056][   T73]      inet6_addr_add+0x30e/0xa40
[ 3911.574056][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3911.574056][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3911.574056][   T73]      netlink_rcv_skb+0x130/0x360
[ 3911.574056][   T73]      netlink_unicast+0x449/0x710
[ 3911.574056][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3911.574056][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3911.574056][   T73]      ___sys_sendmsg+0xee/0x170
[ 3911.574056][   T73]      __sys_sendmsg+0xcd/0x170
[ 3911.574056][   T73]      do_syscall_64+0xc6/0x1e0
[ 3911.574056][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3911.574056][   T73] 
[ 3911.576290][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3911.576290][   T73]      netdev_get_by_index+0x5e/0x80
[ 3911.576290][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3911.576290][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3911.576290][   T73]      ip6_route_add+0x1c/0x140
[ 3911.576290][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3911.576290][   T73]      addrconf_add_dev+0xe2/0x170
[ 3911.576290][   T73]      inet6_addr_add+0x12f/0xa40
[ 3911.576290][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3911.576290][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3911.576290][   T73]      netlink_rcv_skb+0x130/0x360
[ 3911.576290][   T73]      netlink_unicast+0x449/0x710
[ 3911.576290][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3911.576290][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3911.576290][   T73]      ___sys_sendmsg+0xee/0x170
[ 3911.576290][   T73]      __sys_sendmsg+0xcd/0x170
[ 3911.576290][   T73]      do_syscall_64+0xc6/0x1e0
[ 3911.576290][   T73] 
[ 3911.578415][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3911.578415][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3911.578415][   T73]      ipv6_find_idev+0x102/0x170
[ 3911.578415][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3911.578415][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3911.578415][   T73]      netlink_rcv_skb+0x130/0x360
[ 3911.578415][   T73]      netlink_unicast+0x449/0x710
[ 3911.578415][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3911.578415][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3911.578415][   T73]      ___sys_sendmsg+0xee/0x170
[ 3911.578415][   T73]      __sys_sendmsg+0xcd/0x170
[ 3911.578415][   T73]      do_syscall_64+0xc6/0x1e0
[ 3911.578415][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3911.578415][   T73] 
[ 3911.580068][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3911.580068][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3911.580068][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3911.580068][   T73]      ipv6_find_idev+0x102/0x170
[ 3911.580068][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3911.580068][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3911.580068][   T73]      netlink_rcv_skb+0x130/0x360
[ 3911.580068][   T73]      netlink_unicast+0x449/0x710
[ 3911.580068][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3911.580068][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3911.580068][   T73]      ___sys_sendmsg+0xee/0x170
[ 3911.580068][   T73]      __sys_sendmsg+0xcd/0x170
[ 3911.580068][   T73]      do_syscall_64+0xc6/0x1e0
[ 3911.580068][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3911.580068][   T73] 
[ 3911.581867][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3911.582171][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3911.582171][   T73]      netdev_get_by_index+0x5e/0x80
[ 3911.582171][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3911.582171][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3911.582171][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3911.582171][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3911.582171][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3911.582171][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3911.582171][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3911.582171][   T73]      addrconf_dad_begin+0x310/0x670
[ 3911.582171][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3911.582171][   T73]      process_one_work+0x84d/0x18a0
[ 3911.582171][   T73]      worker_thread+0x587/0xd30
[ 3911.582171][   T73]      kthread+0x28a/0x350
[ 3911.582171][   T73]      ret_from_fork+0x31/0x70
[ 3911.582171][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3911.582171][   T73] 
[ 3911.584242][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3911.584242][   T73]      netdev_get_by_index+0x5e/0x80
[ 3911.584242][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3911.584242][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3911.584242][   T73]      ip6_route_add+0x1c/0x140
[ 3911.584242][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3911.584242][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3911.584242][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3911.584242][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3911.584242][   T73]      netlink_rcv_skb+0x130/0x360
[ 3911.584242][   T73]      netlink_unicast+0x449/0x710
[ 3911.584242][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3911.584242][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3911.584242][   T73]      ___sys_sendmsg+0xee/0x170
[ 3911.584242][   T73]      __sys_sendmsg+0xcd/0x170
[ 3911.584242][   T73]      do_syscall_64+0xc6/0x1e0
[ 3911.584242][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3911.584242][   T73] 
[ 3911.586385][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3911.586385][   T73]      netdev_get_by_index+0x5e/0x80
[ 3911.586385][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3911.586385][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3911.586385][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3911.586385][   T73]      ipv6_add_addr+0x411/0x2000
[ 3911.586385][   T73]      inet6_addr_add+0x30e/0xa40
[ 3911.586385][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3911.586385][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3911.586385][   T73]      netlink_rcv_skb+0x130/0x360
[ 3911.586385][   T73]      netlink_unicast+0x449/0x710
[ 3911.586385][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3911.586385][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3911.586385][   T73]      ___sys_sendmsg+0xee/0x170
[ 3911.586385][   T73]      __sys_sendmsg+0xcd/0x170
[ 3911.586385][   T73]      do_syscall_64+0xc6/0x1e0
[ 3911.586385][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3911.586385][   T73] 
[ 3911.588517][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3911.588517][   T73]      netdev_get_by_index+0x5e/0x80
[ 3911.588517][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3911.588517][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3911.588517][   T73]      ip6_route_add+0x1c/0x140
[ 3911.588517][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3911.588517][   T73]      addrconf_add_dev+0xe2/0x170
[ 3911.588517][   T73]      inet6_addr_add+0x12f/0xa40
[ 3911.588517][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3911.588517][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3911.588517][   T73]      netlink_rcv_skb+0x130/0x360
[ 3911.588517][   T73]      netlink_unicast+0x449/0x710
[ 3911.588517][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3911.588517][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3911.588517][   T73]      ___sys_sendmsg+0xee/0x170
[ 3911.588517][   T73]      __sys_sendmsg+0xcd/0x170
[ 3911.588517][   T73]      do_syscall_64+0xc6/0x1e0
[ 3911.588517][   T73] 
[ 3911.590495][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3911.590495][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3911.590495][   T73]      ipv6_find_idev+0x102/0x170
[ 3911.590495][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3911.590495][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3911.590495][   T73]      netlink_rcv_skb+0x130/0x360
[ 3911.590495][   T73]      netlink_unicast+0x449/0x710
[ 3911.590495][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3911.590495][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3911.590495][   T73]      ___sys_sendmsg+0xee/0x170
[ 3911.590495][   T73]      __sys_sendmsg+0xcd/0x170
[ 3911.590495][   T73]      do_syscall_64+0xc6/0x1e0
[ 3911.590495][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3911.590495][   T73] 
[ 3911.592042][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3911.592042][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3911.592042][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3911.592042][   T73]      ipv6_find_idev+0x102/0x170
[ 3911.592042][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3911.592042][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3911.592042][   T73]      netlink_rcv_skb+0x130/0x360
[ 3911.592042][   T73]      netlink_unicast+0x449/0x710
[ 3911.592042][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3911.592042][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3911.592042][   T73]      ___sys_sendmsg+0xee/0x170
[ 3911.592042][   T73]      __sys_sendmsg+0xcd/0x170
[ 3911.592042][   T73]      do_syscall_64+0xc6/0x1e0
[ 3911.592042][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3911.592042][   T73] 
[ 3911.593763][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3911.594043][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3911.594043][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3911.594043][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3911.594043][   T73]      fib6_nh_init+0xa22/0x1580
[ 3911.594043][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3911.594043][   T73]      ip6_route_add+0x1c/0x140
[ 3911.594043][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3911.594043][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3911.594043][   T73]      netlink_rcv_skb+0x130/0x360
[ 3911.594043][   T73]      netlink_unicast+0x449/0x710
[ 3911.594043][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3911.594043][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3911.594043][   T73]      ___sys_sendmsg+0xee/0x170
[ 3911.594043][   T73]      __sys_sendmsg+0xcd/0x170
[ 3911.594043][   T73]      do_syscall_64+0xc6/0x1e0
[ 3911.594043][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3911.594043][   T73] 
[ 3911.596268][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3911.596268][   T73]      dst_init+0x84/0x4a0
[ 3911.596268][   T73]      dst_alloc+0x97/0x150
[ 3911.596268][   T73]      ip6_dst_alloc+0x23/0x90
[ 3911.596268][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3911.596268][   T73]      ip6_pol_route+0x56f/0x840
[ 3911.596268][   T73]      fib6_rule_lookup+0x456/0x630
[ 3911.596268][   T73]      ip6_route_input+0x59c/0xa50
[ 3911.596268][   T73]      ipv6_rcv+0x397/0x810
[ 3911.596268][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3911.596268][   T73]      process_backlog+0x101/0x620
[ 3911.596268][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3911.596268][   T73]      net_rx_action+0x495/0xbe0
[ 3911.596268][   T73]      __do_softirq+0x1b5/0x7f6
[ 3911.596268][   T73] 
[ 3911.598239][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3911.598239][   T73]      netdev_get_by_index+0x5e/0x80
[ 3911.598239][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3911.598239][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3911.598239][   T73]      ip6_route_add+0x1c/0x140
[ 3911.598239][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3911.598239][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3911.598239][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3911.598239][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3911.598239][   T73]      netlink_rcv_skb+0x130/0x360
[ 3911.598239][   T73]      netlink_unicast+0x449/0x710
[ 3911.598239][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3911.598239][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3911.598239][   T73]      ___sys_sendmsg+0xee/0x170
[ 3911.598239][   T73]      __sys_sendmsg+0xcd/0x170
[ 3911.598239][   T73]      do_syscall_64+0xc6/0x1e0
[ 3911.598239][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3911.598239][   T73] 
[ 3911.600660][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3911.600660][   T73]      netdev_get_by_index+0x5e/0x80
[ 3911.600660][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3911.600660][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3911.600660][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3911.600660][   T73]      ipv6_add_addr+0x411/0x2000
[ 3911.600660][   T73]      inet6_addr_add+0x30e/0xa40
[ 3911.600660][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3911.600660][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3911.600660][   T73]      netlink_rcv_skb+0x130/0x360
[ 3911.600660][   T73]      netlink_unicast+0x449/0x710
[ 3911.600660][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3911.600660][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3911.600660][   T73]      ___sys_sendmsg+0xee/0x170
[ 3911.600660][   T73]      __sys_sendmsg+0xcd/0x170
[ 3911.600660][   T73]      do_syscall_64+0xc6/0x1e0
[ 3911.600660][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3911.600660][   T73] 
[ 3911.603062][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3911.603062][   T73]      netdev_get_by_index+0x5e/0x80
[ 3911.603062][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3911.603062][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3911.603062][   T73]      ip6_route_add+0x1c/0x140
[ 3911.603062][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3911.603062][   T73]      addrconf_add_dev+0xe2/0x170
[ 3911.603062][   T73]      inet6_addr_add+0x12f/0xa40
[ 3911.603062][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3911.603062][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3911.603062][   T73]      netlink_rcv_skb+0x130/0x360
[ 3911.603062][   T73]      netlink_unicast+0x449/0x710
[ 3911.603062][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3911.603062][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3911.603062][   T73]      ___sys_sendmsg+0xee/0x170
[ 3911.603062][   T73]      __sys_sendmsg+0xcd/0x170
[ 3911.603062][   T73]      do_syscall_64+0xc6/0x1e0
[ 3911.603062][   T73] 
[ 3911.605384][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3911.605384][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3911.605384][   T73]      ipv6_find_idev+0x102/0x170
[ 3911.605384][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3911.605384][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3911.605384][   T73]      netlink_rcv_skb+0x130/0x360
[ 3911.605384][   T73]      netlink_unicast+0x449/0x710
[ 3911.605384][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3911.605384][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3911.605384][   T73]      ___sys_sendmsg+0xee/0x170
[ 3911.605384][   T73]      __sys_sendmsg+0xcd/0x170
[ 3911.605384][   T73]      do_syscall_64+0xc6/0x1e0
[ 3911.605384][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3911.605384][   T73] 
[ 3911.607132][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3911.607132][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3911.607132][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3911.607132][   T73]      ipv6_find_idev+0x102/0x170
[ 3911.607132][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3911.607132][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3911.607132][   T73]      netlink_rcv_skb+0x130/0x360
[ 3911.607132][   T73]      netlink_unicast+0x449/0x710
[ 3911.607132][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3911.607132][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3911.607132][   T73]      ___sys_sendmsg+0xee/0x170
[ 3911.607132][   T73]      __sys_sendmsg+0xcd/0x170
[ 3911.607132][   T73]      do_syscall_64+0xc6/0x1e0
[ 3911.607132][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3911.607132][   T73] 
[ 3911.609199][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3911.609483][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3911.609483][   T73]      netdev_get_by_index+0x5e/0x80
[ 3911.609483][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3911.609483][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3911.609483][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3911.609483][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3911.609483][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3911.609483][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3911.609483][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3911.609483][   T73]      addrconf_dad_begin+0x310/0x670
[ 3911.609483][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3911.609483][   T73]      process_one_work+0x84d/0x18a0
[ 3911.609483][   T73]      worker_thread+0x587/0xd30
[ 3911.609483][   T73]      kthread+0x28a/0x350
[ 3911.609483][   T73]      ret_from_fork+0x31/0x70
[ 3911.609483][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3911.609483][   T73] 
[ 3911.611664][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3911.611664][   T73]      netdev_get_by_index+0x5e/0x80
[ 3911.611664][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3911.611664][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3911.611664][   T73]      ip6_route_add+0x1c/0x140
[ 3911.611664][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3911.611664][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3911.611664][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3911.611664][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3911.611664][   T73]      netlink_rcv_skb+0x130/0x360
[ 3911.611664][   T73]      netlink_unicast+0x449/0x710
[ 3911.611664][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3911.611664][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3911.611664][   T73]      ___sys_sendmsg+0xee/0x170
[ 3911.611664][   T73]      __sys_sendmsg+0xcd/0x170
[ 3911.611664][   T73]      do_syscall_64+0xc6/0x1e0
[ 3911.611664][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3911.611664][   T73] 
[ 3911.614038][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3911.614038][   T73]      netdev_get_by_index+0x5e/0x80
[ 3911.614038][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3911.614038][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3911.614038][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3911.614038][   T73]      ipv6_add_addr+0x411/0x2000
[ 3911.614038][   T73]      inet6_addr_add+0x30e/0xa40
[ 3911.614038][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3911.614038][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3911.614038][   T73]      netlink_rcv_skb+0x130/0x360
[ 3911.614038][   T73]      netlink_unicast+0x449/0x710
[ 3911.614038][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3911.614038][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3911.614038][   T73]      ___sys_sendmsg+0xee/0x170
[ 3911.614038][   T73]      __sys_sendmsg+0xcd/0x170
[ 3911.614038][   T73]      do_syscall_64+0xc6/0x1e0
[ 3911.614038][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3911.614038][   T73] 
[ 3911.616414][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3911.616414][   T73]      netdev_get_by_index+0x5e/0x80
[ 3911.616414][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3911.616414][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3911.616414][   T73]      ip6_route_add+0x1c/0x140
[ 3911.616414][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3911.616414][   T73]      addrconf_add_dev+0xe2/0x170
[ 3911.616414][   T73]      inet6_addr_add+0x12f/0xa40
[ 3911.616414][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3911.616414][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3911.616414][   T73]      netlink_rcv_skb+0x130/0x360
[ 3911.616414][   T73]      netlink_unicast+0x449/0x710
[ 3911.616414][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3911.616414][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3911.616414][   T73]      ___sys_sendmsg+0xee/0x170
[ 3911.616414][   T73]      __sys_sendmsg+0xcd/0x170
[ 3911.616414][   T73]      do_syscall_64+0xc6/0x1e0
[ 3911.616414][   T73] 
[ 3911.618735][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3911.618735][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3911.618735][   T73]      ipv6_find_idev+0x102/0x170
[ 3911.618735][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3911.618735][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3911.618735][   T73]      netlink_rcv_skb+0x130/0x360
[ 3911.618735][   T73]      netlink_unicast+0x449/0x710
[ 3911.618735][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3911.618735][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3911.618735][   T73]      ___sys_sendmsg+0xee/0x170
[ 3911.618735][   T73]      __sys_sendmsg+0xcd/0x170
[ 3911.618735][   T73]      do_syscall_64+0xc6/0x1e0
[ 3911.618735][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3911.618735][   T73] 
[ 3911.620453][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3911.620453][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3911.620453][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3911.620453][   T73]      ipv6_find_idev+0x102/0x170
[ 3911.620453][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3911.620453][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3911.620453][   T73]      netlink_rcv_skb+0x130/0x360
[ 3911.620453][   T73]      netlink_unicast+0x449/0x710
[ 3911.620453][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3911.620453][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3911.620453][   T73]      ___sys_sendmsg+0xee/0x170
[ 3911.620453][   T73]      __sys_sendmsg+0xcd/0x170
[ 3911.620453][   T73]      do_syscall_64+0xc6/0x1e0
[ 3911.620453][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3911.620453][   T73] 
[ 3921.871771][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3921.872313][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3921.872313][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3921.872313][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3921.872313][   T73]      fib6_nh_init+0xa22/0x1580
[ 3921.872313][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3921.872313][   T73]      ip6_route_add+0x1c/0x140
[ 3921.872313][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3921.872313][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3921.872313][   T73]      netlink_rcv_skb+0x130/0x360
[ 3921.872313][   T73]      netlink_unicast+0x449/0x710
[ 3921.872313][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3921.872313][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3921.872313][   T73]      ___sys_sendmsg+0xee/0x170
[ 3921.872313][   T73]      __sys_sendmsg+0xcd/0x170
[ 3921.872313][   T73]      do_syscall_64+0xc6/0x1e0
[ 3921.872313][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3921.872313][   T73] 
[ 3921.874234][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3921.874234][   T73]      dst_init+0x84/0x4a0
[ 3921.874234][   T73]      dst_alloc+0x97/0x150
[ 3921.874234][   T73]      ip6_dst_alloc+0x23/0x90
[ 3921.874234][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3921.874234][   T73]      ip6_pol_route+0x56f/0x840
[ 3921.874234][   T73]      fib6_rule_lookup+0x456/0x630
[ 3921.874234][   T73]      ip6_route_input+0x59c/0xa50
[ 3921.874234][   T73]      ipv6_rcv+0x397/0x810
[ 3921.874234][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3921.874234][   T73]      process_backlog+0x101/0x620
[ 3921.874234][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3921.874234][   T73]      net_rx_action+0x495/0xbe0
[ 3921.874234][   T73]      __do_softirq+0x1b5/0x7f6
[ 3921.874234][   T73] 
[ 3921.875886][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3921.875886][   T73]      netdev_get_by_index+0x5e/0x80
[ 3921.875886][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3921.875886][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3921.875886][   T73]      ip6_route_add+0x1c/0x140
[ 3921.875886][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3921.875886][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3921.875886][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3921.875886][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3921.875886][   T73]      netlink_rcv_skb+0x130/0x360
[ 3921.875886][   T73]      netlink_unicast+0x449/0x710
[ 3921.875886][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3921.875886][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3921.875886][   T73]      ___sys_sendmsg+0xee/0x170
[ 3921.875886][   T73]      __sys_sendmsg+0xcd/0x170
[ 3921.875886][   T73]      do_syscall_64+0xc6/0x1e0
[ 3921.875886][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3921.875886][   T73] 
[ 3921.877911][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3921.877911][   T73]      netdev_get_by_index+0x5e/0x80
[ 3921.877911][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3921.877911][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3921.877911][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3921.877911][   T73]      ipv6_add_addr+0x411/0x2000
[ 3921.877911][   T73]      inet6_addr_add+0x30e/0xa40
[ 3921.877911][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3921.877911][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3921.877911][   T73]      netlink_rcv_skb+0x130/0x360
[ 3921.877911][   T73]      netlink_unicast+0x449/0x710
[ 3921.877911][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3921.877911][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3921.877911][   T73]      ___sys_sendmsg+0xee/0x170
[ 3921.877911][   T73]      __sys_sendmsg+0xcd/0x170
[ 3921.877911][   T73]      do_syscall_64+0xc6/0x1e0
[ 3921.877911][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3921.877911][   T73] 
[ 3921.879935][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3921.879935][   T73]      netdev_get_by_index+0x5e/0x80
[ 3921.879935][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3921.879935][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3921.879935][   T73]      ip6_route_add+0x1c/0x140
[ 3921.879935][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3921.879935][   T73]      addrconf_add_dev+0xe2/0x170
[ 3921.879935][   T73]      inet6_addr_add+0x12f/0xa40
[ 3921.879935][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3921.879935][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3921.879935][   T73]      netlink_rcv_skb+0x130/0x360
[ 3921.879935][   T73]      netlink_unicast+0x449/0x710
[ 3921.879935][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3921.879935][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3921.879935][   T73]      ___sys_sendmsg+0xee/0x170
[ 3921.879935][   T73]      __sys_sendmsg+0xcd/0x170
[ 3921.879935][   T73]      do_syscall_64+0xc6/0x1e0
[ 3921.879935][   T73] 
[ 3921.881917][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3921.881917][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3921.881917][   T73]      ipv6_find_idev+0x102/0x170
[ 3921.881917][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3921.881917][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3921.881917][   T73]      netlink_rcv_skb+0x130/0x360
[ 3921.881917][   T73]      netlink_unicast+0x449/0x710
[ 3921.881917][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3921.881917][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3921.881917][   T73]      ___sys_sendmsg+0xee/0x170
[ 3921.881917][   T73]      __sys_sendmsg+0xcd/0x170
[ 3921.881917][   T73]      do_syscall_64+0xc6/0x1e0
[ 3921.881917][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3921.881917][   T73] 
[ 3921.883457][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3921.883457][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3921.883457][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3921.883457][   T73]      ipv6_find_idev+0x102/0x170
[ 3921.883457][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3921.883457][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3921.883457][   T73]      netlink_rcv_skb+0x130/0x360
[ 3921.883457][   T73]      netlink_unicast+0x449/0x710
[ 3921.883457][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3921.883457][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3921.883457][   T73]      ___sys_sendmsg+0xee/0x170
[ 3921.883457][   T73]      __sys_sendmsg+0xcd/0x170
[ 3921.883457][   T73]      do_syscall_64+0xc6/0x1e0
[ 3921.883457][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3921.883457][   T73] 
[ 3921.885179][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3921.885463][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3921.885463][   T73]      netdev_get_by_index+0x5e/0x80
[ 3921.885463][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3921.885463][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3921.885463][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3921.885463][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3921.885463][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3921.885463][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3921.885463][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3921.885463][   T73]      addrconf_dad_begin+0x310/0x670
[ 3921.885463][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3921.885463][   T73]      process_one_work+0x84d/0x18a0
[ 3921.885463][   T73]      worker_thread+0x587/0xd30
[ 3921.885463][   T73]      kthread+0x28a/0x350
[ 3921.885463][   T73]      ret_from_fork+0x31/0x70
[ 3921.885463][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3921.885463][   T73] 
[ 3921.887398][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3921.887398][   T73]      netdev_get_by_index+0x5e/0x80
[ 3921.887398][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3921.887398][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3921.887398][   T73]      ip6_route_add+0x1c/0x140
[ 3921.887398][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3921.887398][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3921.887398][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3921.887398][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3921.887398][   T73]      netlink_rcv_skb+0x130/0x360
[ 3921.887398][   T73]      netlink_unicast+0x449/0x710
[ 3921.887398][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3921.887398][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3921.887398][   T73]      ___sys_sendmsg+0xee/0x170
[ 3921.887398][   T73]      __sys_sendmsg+0xcd/0x170
[ 3921.887398][   T73]      do_syscall_64+0xc6/0x1e0
[ 3921.887398][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3921.887398][   T73] 
[ 3921.889445][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3921.889445][   T73]      netdev_get_by_index+0x5e/0x80
[ 3921.889445][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3921.889445][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3921.889445][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3921.889445][   T73]      ipv6_add_addr+0x411/0x2000
[ 3921.889445][   T73]      inet6_addr_add+0x30e/0xa40
[ 3921.889445][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3921.889445][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3921.889445][   T73]      netlink_rcv_skb+0x130/0x360
[ 3921.889445][   T73]      netlink_unicast+0x449/0x710
[ 3921.889445][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3921.889445][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3921.889445][   T73]      ___sys_sendmsg+0xee/0x170
[ 3921.889445][   T73]      __sys_sendmsg+0xcd/0x170
[ 3921.889445][   T73]      do_syscall_64+0xc6/0x1e0
[ 3921.889445][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3921.889445][   T73] 
[ 3921.891450][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3921.891450][   T73]      netdev_get_by_index+0x5e/0x80
[ 3921.891450][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3921.891450][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3921.891450][   T73]      ip6_route_add+0x1c/0x140
[ 3921.891450][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3921.891450][   T73]      addrconf_add_dev+0xe2/0x170
[ 3921.891450][   T73]      inet6_addr_add+0x12f/0xa40
[ 3921.891450][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3921.891450][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3921.891450][   T73]      netlink_rcv_skb+0x130/0x360
[ 3921.891450][   T73]      netlink_unicast+0x449/0x710
[ 3921.891450][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3921.891450][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3921.891450][   T73]      ___sys_sendmsg+0xee/0x170
[ 3921.891450][   T73]      __sys_sendmsg+0xcd/0x170
[ 3921.891450][   T73]      do_syscall_64+0xc6/0x1e0
[ 3921.891450][   T73] 
[ 3921.893422][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3921.893422][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3921.893422][   T73]      ipv6_find_idev+0x102/0x170
[ 3921.893422][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3921.893422][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3921.893422][   T73]      netlink_rcv_skb+0x130/0x360
[ 3921.893422][   T73]      netlink_unicast+0x449/0x710
[ 3921.893422][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3921.893422][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3921.893422][   T73]      ___sys_sendmsg+0xee/0x170
[ 3921.893422][   T73]      __sys_sendmsg+0xcd/0x170
[ 3921.893422][   T73]      do_syscall_64+0xc6/0x1e0
[ 3921.893422][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3921.893422][   T73] 
[ 3921.894976][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3921.894976][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3921.894976][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3921.894976][   T73]      ipv6_find_idev+0x102/0x170
[ 3921.894976][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3921.894976][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3921.894976][   T73]      netlink_rcv_skb+0x130/0x360
[ 3921.894976][   T73]      netlink_unicast+0x449/0x710
[ 3921.894976][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3921.894976][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3921.894976][   T73]      ___sys_sendmsg+0xee/0x170
[ 3921.894976][   T73]      __sys_sendmsg+0xcd/0x170
[ 3921.894976][   T73]      do_syscall_64+0xc6/0x1e0
[ 3921.894976][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3921.894976][   T73] 
[ 3921.896690][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3921.896960][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3921.896960][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3921.896960][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3921.896960][   T73]      fib6_nh_init+0xa22/0x1580
[ 3921.896960][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3921.896960][   T73]      ip6_route_add+0x1c/0x140
[ 3921.896960][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3921.896960][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3921.896960][   T73]      netlink_rcv_skb+0x130/0x360
[ 3921.896960][   T73]      netlink_unicast+0x449/0x710
[ 3921.896960][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3921.896960][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3921.896960][   T73]      ___sys_sendmsg+0xee/0x170
[ 3921.896960][   T73]      __sys_sendmsg+0xcd/0x170
[ 3921.896960][   T73]      do_syscall_64+0xc6/0x1e0
[ 3921.896960][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3921.896960][   T73] 
[ 3921.899040][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3921.899040][   T73]      dst_init+0x84/0x4a0
[ 3921.899040][   T73]      dst_alloc+0x97/0x150
[ 3921.899040][   T73]      ip6_dst_alloc+0x23/0x90
[ 3921.899040][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3921.899040][   T73]      ip6_pol_route+0x56f/0x840
[ 3921.899040][   T73]      fib6_rule_lookup+0x456/0x630
[ 3921.899040][   T73]      ip6_route_input+0x59c/0xa50
[ 3921.899040][   T73]      ipv6_rcv+0x397/0x810
[ 3921.899040][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3921.899040][   T73]      process_backlog+0x101/0x620
[ 3921.899040][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3921.899040][   T73]      net_rx_action+0x495/0xbe0
[ 3921.899040][   T73]      __do_softirq+0x1b5/0x7f6
[ 3921.899040][   T73] 
[ 3921.900925][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3921.900925][   T73]      netdev_get_by_index+0x5e/0x80
[ 3921.900925][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3921.900925][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3921.900925][   T73]      ip6_route_add+0x1c/0x140
[ 3921.900925][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3921.900925][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3921.900925][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3921.900925][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3921.900925][   T73]      netlink_rcv_skb+0x130/0x360
[ 3921.900925][   T73]      netlink_unicast+0x449/0x710
[ 3921.900925][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3921.900925][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3921.900925][   T73]      ___sys_sendmsg+0xee/0x170
[ 3921.900925][   T73]      __sys_sendmsg+0xcd/0x170
[ 3921.900925][   T73]      do_syscall_64+0xc6/0x1e0
[ 3921.900925][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3921.900925][   T73] 
[ 3921.903171][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3921.903171][   T73]      netdev_get_by_index+0x5e/0x80
[ 3921.903171][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3921.903171][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3921.903171][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3921.903171][   T73]      ipv6_add_addr+0x411/0x2000
[ 3921.903171][   T73]      inet6_addr_add+0x30e/0xa40
[ 3921.903171][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3921.903171][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3921.903171][   T73]      netlink_rcv_skb+0x130/0x360
[ 3921.903171][   T73]      netlink_unicast+0x449/0x710
[ 3921.903171][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3921.903171][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3921.903171][   T73]      ___sys_sendmsg+0xee/0x170
[ 3921.903171][   T73]      __sys_sendmsg+0xcd/0x170
[ 3921.903171][   T73]      do_syscall_64+0xc6/0x1e0
[ 3921.903171][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3921.903171][   T73] 
[ 3921.905951][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3921.905951][   T73]      netdev_get_by_index+0x5e/0x80
[ 3921.905951][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3921.905951][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3921.905951][   T73]      ip6_route_add+0x1c/0x140
[ 3921.905951][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3921.905951][   T73]      addrconf_add_dev+0xe2/0x170
[ 3921.905951][   T73]      inet6_addr_add+0x12f/0xa40
[ 3921.905951][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3921.905951][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3921.905951][   T73]      netlink_rcv_skb+0x130/0x360
[ 3921.905951][   T73]      netlink_unicast+0x449/0x710
[ 3921.905951][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3921.905951][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3921.905951][   T73]      ___sys_sendmsg+0xee/0x170
[ 3921.905951][   T73]      __sys_sendmsg+0xcd/0x170
[ 3921.905951][   T73]      do_syscall_64+0xc6/0x1e0
[ 3921.905951][   T73] 
[ 3921.908188][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3921.908188][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3921.908188][   T73]      ipv6_find_idev+0x102/0x170
[ 3921.908188][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3921.908188][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3921.908188][   T73]      netlink_rcv_skb+0x130/0x360
[ 3921.908188][   T73]      netlink_unicast+0x449/0x710
[ 3921.908188][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3921.908188][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3921.908188][   T73]      ___sys_sendmsg+0xee/0x170
[ 3921.908188][   T73]      __sys_sendmsg+0xcd/0x170
[ 3921.908188][   T73]      do_syscall_64+0xc6/0x1e0
[ 3921.908188][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3921.908188][   T73] 
[ 3921.909913][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3921.909913][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3921.909913][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3921.909913][   T73]      ipv6_find_idev+0x102/0x170
[ 3921.909913][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3921.909913][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3921.909913][   T73]      netlink_rcv_skb+0x130/0x360
[ 3921.909913][   T73]      netlink_unicast+0x449/0x710
[ 3921.909913][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3921.909913][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3921.909913][   T73]      ___sys_sendmsg+0xee/0x170
[ 3921.909913][   T73]      __sys_sendmsg+0xcd/0x170
[ 3921.909913][   T73]      do_syscall_64+0xc6/0x1e0
[ 3921.909913][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3921.909913][   T73] 
[ 3921.911872][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3921.912147][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3921.912147][   T73]      netdev_get_by_index+0x5e/0x80
[ 3921.912147][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3921.912147][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3921.912147][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3921.912147][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3921.912147][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3921.912147][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3921.912147][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3921.912147][   T73]      addrconf_dad_begin+0x310/0x670
[ 3921.912147][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3921.912147][   T73]      process_one_work+0x84d/0x18a0
[ 3921.912147][   T73]      worker_thread+0x587/0xd30
[ 3921.912147][   T73]      kthread+0x28a/0x350
[ 3921.912147][   T73]      ret_from_fork+0x31/0x70
[ 3921.912147][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3921.912147][   T73] 
[ 3921.914365][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3921.914365][   T73]      netdev_get_by_index+0x5e/0x80
[ 3921.914365][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3921.914365][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3921.914365][   T73]      ip6_route_add+0x1c/0x140
[ 3921.914365][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3921.914365][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3921.914365][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3921.914365][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3921.914365][   T73]      netlink_rcv_skb+0x130/0x360
[ 3921.914365][   T73]      netlink_unicast+0x449/0x710
[ 3921.914365][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3921.914365][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3921.914365][   T73]      ___sys_sendmsg+0xee/0x170
[ 3921.914365][   T73]      __sys_sendmsg+0xcd/0x170
[ 3921.914365][   T73]      do_syscall_64+0xc6/0x1e0
[ 3921.914365][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3921.914365][   T73] 
[ 3921.916735][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3921.916735][   T73]      netdev_get_by_index+0x5e/0x80
[ 3921.916735][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3921.916735][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3921.916735][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3921.916735][   T73]      ipv6_add_addr+0x411/0x2000
[ 3921.916735][   T73]      inet6_addr_add+0x30e/0xa40
[ 3921.916735][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3921.916735][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3921.916735][   T73]      netlink_rcv_skb+0x130/0x360
[ 3921.916735][   T73]      netlink_unicast+0x449/0x710
[ 3921.916735][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3921.916735][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3921.916735][   T73]      ___sys_sendmsg+0xee/0x170
[ 3921.916735][   T73]      __sys_sendmsg+0xcd/0x170
[ 3921.916735][   T73]      do_syscall_64+0xc6/0x1e0
[ 3921.916735][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3921.916735][   T73] 
[ 3921.918946][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3921.918946][   T73]      netdev_get_by_index+0x5e/0x80
[ 3921.918946][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3921.918946][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3921.918946][   T73]      ip6_route_add+0x1c/0x140
[ 3921.918946][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3921.918946][   T73]      addrconf_add_dev+0xe2/0x170
[ 3921.918946][   T73]      inet6_addr_add+0x12f/0xa40
[ 3921.918946][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3921.918946][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3921.918946][   T73]      netlink_rcv_skb+0x130/0x360
[ 3921.918946][   T73]      netlink_unicast+0x449/0x710
[ 3921.918946][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3921.918946][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3921.918946][   T73]      ___sys_sendmsg+0xee/0x170
[ 3921.918946][   T73]      __sys_sendmsg+0xcd/0x170
[ 3921.918946][   T73]      do_syscall_64+0xc6/0x1e0
[ 3921.918946][   T73] 
[ 3921.921217][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3921.921217][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3921.921217][   T73]      ipv6_find_idev+0x102/0x170
[ 3921.921217][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3921.921217][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3921.921217][   T73]      netlink_rcv_skb+0x130/0x360
[ 3921.921217][   T73]      netlink_unicast+0x449/0x710
[ 3921.921217][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3921.921217][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3921.921217][   T73]      ___sys_sendmsg+0xee/0x170
[ 3921.921217][   T73]      __sys_sendmsg+0xcd/0x170
[ 3921.921217][   T73]      do_syscall_64+0xc6/0x1e0
[ 3921.921217][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3921.921217][   T73] 
[ 3921.923322][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3921.923322][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3921.923322][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3921.923322][   T73]      ipv6_find_idev+0x102/0x170
[ 3921.923322][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3921.923322][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3921.923322][   T73]      netlink_rcv_skb+0x130/0x360
[ 3921.923322][   T73]      netlink_unicast+0x449/0x710
[ 3921.923322][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3921.923322][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3921.923322][   T73]      ___sys_sendmsg+0xee/0x170
[ 3921.923322][   T73]      __sys_sendmsg+0xcd/0x170
[ 3921.923322][   T73]      do_syscall_64+0xc6/0x1e0
[ 3921.923322][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3921.923322][   T73] 
[ 3932.335798][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3932.336266][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3932.336266][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3932.336266][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3932.336266][   T73]      fib6_nh_init+0xa22/0x1580
[ 3932.336266][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3932.336266][   T73]      ip6_route_add+0x1c/0x140
[ 3932.336266][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3932.336266][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3932.336266][   T73]      netlink_rcv_skb+0x130/0x360
[ 3932.336266][   T73]      netlink_unicast+0x449/0x710
[ 3932.336266][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3932.336266][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3932.336266][   T73]      ___sys_sendmsg+0xee/0x170
[ 3932.336266][   T73]      __sys_sendmsg+0xcd/0x170
[ 3932.336266][   T73]      do_syscall_64+0xc6/0x1e0
[ 3932.336266][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3932.336266][   T73] 
[ 3932.338307][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3932.338307][   T73]      dst_init+0x84/0x4a0
[ 3932.338307][   T73]      dst_alloc+0x97/0x150
[ 3932.338307][   T73]      ip6_dst_alloc+0x23/0x90
[ 3932.338307][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3932.338307][   T73]      ip6_pol_route+0x56f/0x840
[ 3932.338307][   T73]      fib6_rule_lookup+0x456/0x630
[ 3932.338307][   T73]      ip6_route_input+0x59c/0xa50
[ 3932.338307][   T73]      ipv6_rcv+0x397/0x810
[ 3932.338307][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3932.338307][   T73]      process_backlog+0x101/0x620
[ 3932.338307][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3932.338307][   T73]      net_rx_action+0x495/0xbe0
[ 3932.338307][   T73]      __do_softirq+0x1b5/0x7f6
[ 3932.338307][   T73] 
[ 3932.340067][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3932.340067][   T73]      netdev_get_by_index+0x5e/0x80
[ 3932.340067][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3932.340067][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3932.340067][   T73]      ip6_route_add+0x1c/0x140
[ 3932.340067][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3932.340067][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3932.340067][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3932.340067][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3932.340067][   T73]      netlink_rcv_skb+0x130/0x360
[ 3932.340067][   T73]      netlink_unicast+0x449/0x710
[ 3932.340067][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3932.340067][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3932.340067][   T73]      ___sys_sendmsg+0xee/0x170
[ 3932.340067][   T73]      __sys_sendmsg+0xcd/0x170
[ 3932.340067][   T73]      do_syscall_64+0xc6/0x1e0
[ 3932.340067][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3932.340067][   T73] 
[ 3932.342311][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3932.342311][   T73]      netdev_get_by_index+0x5e/0x80
[ 3932.342311][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3932.342311][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3932.342311][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3932.342311][   T73]      ipv6_add_addr+0x411/0x2000
[ 3932.342311][   T73]      inet6_addr_add+0x30e/0xa40
[ 3932.342311][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3932.342311][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3932.342311][   T73]      netlink_rcv_skb+0x130/0x360
[ 3932.342311][   T73]      netlink_unicast+0x449/0x710
[ 3932.342311][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3932.342311][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3932.342311][   T73]      ___sys_sendmsg+0xee/0x170
[ 3932.342311][   T73]      __sys_sendmsg+0xcd/0x170
[ 3932.342311][   T73]      do_syscall_64+0xc6/0x1e0
[ 3932.342311][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3932.342311][   T73] 
[ 3932.344563][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3932.344563][   T73]      netdev_get_by_index+0x5e/0x80
[ 3932.344563][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3932.344563][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3932.344563][   T73]      ip6_route_add+0x1c/0x140
[ 3932.344563][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3932.344563][   T73]      addrconf_add_dev+0xe2/0x170
[ 3932.344563][   T73]      inet6_addr_add+0x12f/0xa40
[ 3932.344563][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3932.344563][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3932.344563][   T73]      netlink_rcv_skb+0x130/0x360
[ 3932.344563][   T73]      netlink_unicast+0x449/0x710
[ 3932.344563][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3932.344563][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3932.344563][   T73]      ___sys_sendmsg+0xee/0x170
[ 3932.344563][   T73]      __sys_sendmsg+0xcd/0x170
[ 3932.344563][   T73]      do_syscall_64+0xc6/0x1e0
[ 3932.344563][   T73] 
[ 3932.346756][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3932.346756][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3932.346756][   T73]      ipv6_find_idev+0x102/0x170
[ 3932.346756][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3932.346756][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3932.346756][   T73]      netlink_rcv_skb+0x130/0x360
[ 3932.346756][   T73]      netlink_unicast+0x449/0x710
[ 3932.346756][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3932.346756][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3932.346756][   T73]      ___sys_sendmsg+0xee/0x170
[ 3932.346756][   T73]      __sys_sendmsg+0xcd/0x170
[ 3932.346756][   T73]      do_syscall_64+0xc6/0x1e0
[ 3932.346756][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3932.346756][   T73] 
[ 3932.348439][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3932.348439][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3932.348439][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3932.348439][   T73]      ipv6_find_idev+0x102/0x170
[ 3932.348439][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3932.348439][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3932.348439][   T73]      netlink_rcv_skb+0x130/0x360
[ 3932.348439][   T73]      netlink_unicast+0x449/0x710
[ 3932.348439][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3932.348439][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3932.348439][   T73]      ___sys_sendmsg+0xee/0x170
[ 3932.348439][   T73]      __sys_sendmsg+0xcd/0x170
[ 3932.348439][   T73]      do_syscall_64+0xc6/0x1e0
[ 3932.348439][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3932.348439][   T73] 
[ 3932.350397][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3932.350737][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3932.350737][   T73]      netdev_get_by_index+0x5e/0x80
[ 3932.350737][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3932.350737][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3932.350737][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3932.350737][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3932.350737][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3932.350737][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3932.350737][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3932.350737][   T73]      addrconf_dad_begin+0x310/0x670
[ 3932.350737][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3932.350737][   T73]      process_one_work+0x84d/0x18a0
[ 3932.350737][   T73]      worker_thread+0x587/0xd30
[ 3932.350737][   T73]      kthread+0x28a/0x350
[ 3932.350737][   T73]      ret_from_fork+0x31/0x70
[ 3932.350737][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3932.350737][   T73] 
[ 3932.352927][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3932.352927][   T73]      netdev_get_by_index+0x5e/0x80
[ 3932.352927][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3932.352927][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3932.352927][   T73]      ip6_route_add+0x1c/0x140
[ 3932.352927][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3932.352927][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3932.352927][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3932.352927][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3932.352927][   T73]      netlink_rcv_skb+0x130/0x360
[ 3932.352927][   T73]      netlink_unicast+0x449/0x710
[ 3932.352927][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3932.352927][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3932.352927][   T73]      ___sys_sendmsg+0xee/0x170
[ 3932.352927][   T73]      __sys_sendmsg+0xcd/0x170
[ 3932.352927][   T73]      do_syscall_64+0xc6/0x1e0
[ 3932.352927][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3932.352927][   T73] 
[ 3932.355251][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3932.355251][   T73]      netdev_get_by_index+0x5e/0x80
[ 3932.355251][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3932.355251][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3932.355251][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3932.355251][   T73]      ipv6_add_addr+0x411/0x2000
[ 3932.355251][   T73]      inet6_addr_add+0x30e/0xa40
[ 3932.355251][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3932.355251][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3932.355251][   T73]      netlink_rcv_skb+0x130/0x360
[ 3932.355251][   T73]      netlink_unicast+0x449/0x710
[ 3932.355251][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3932.355251][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3932.355251][   T73]      ___sys_sendmsg+0xee/0x170
[ 3932.355251][   T73]      __sys_sendmsg+0xcd/0x170
[ 3932.355251][   T73]      do_syscall_64+0xc6/0x1e0
[ 3932.355251][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3932.355251][   T73] 
[ 3932.357580][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3932.357580][   T73]      netdev_get_by_index+0x5e/0x80
[ 3932.357580][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3932.357580][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3932.357580][   T73]      ip6_route_add+0x1c/0x140
[ 3932.357580][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3932.357580][   T73]      addrconf_add_dev+0xe2/0x170
[ 3932.357580][   T73]      inet6_addr_add+0x12f/0xa40
[ 3932.357580][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3932.357580][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3932.357580][   T73]      netlink_rcv_skb+0x130/0x360
[ 3932.357580][   T73]      netlink_unicast+0x449/0x710
[ 3932.357580][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3932.357580][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3932.357580][   T73]      ___sys_sendmsg+0xee/0x170
[ 3932.357580][   T73]      __sys_sendmsg+0xcd/0x170
[ 3932.357580][   T73]      do_syscall_64+0xc6/0x1e0
[ 3932.357580][   T73] 
[ 3932.359869][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3932.359869][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3932.359869][   T73]      ipv6_find_idev+0x102/0x170
[ 3932.359869][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3932.359869][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3932.359869][   T73]      netlink_rcv_skb+0x130/0x360
[ 3932.359869][   T73]      netlink_unicast+0x449/0x710
[ 3932.359869][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3932.359869][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3932.359869][   T73]      ___sys_sendmsg+0xee/0x170
[ 3932.359869][   T73]      __sys_sendmsg+0xcd/0x170
[ 3932.359869][   T73]      do_syscall_64+0xc6/0x1e0
[ 3932.359869][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3932.359869][   T73] 
[ 3932.361663][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3932.361663][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3932.361663][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3932.361663][   T73]      ipv6_find_idev+0x102/0x170
[ 3932.361663][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3932.361663][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3932.361663][   T73]      netlink_rcv_skb+0x130/0x360
[ 3932.361663][   T73]      netlink_unicast+0x449/0x710
[ 3932.361663][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3932.361663][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3932.361663][   T73]      ___sys_sendmsg+0xee/0x170
[ 3932.361663][   T73]      __sys_sendmsg+0xcd/0x170
[ 3932.361663][   T73]      do_syscall_64+0xc6/0x1e0
[ 3932.361663][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3932.361663][   T73] 
[ 3932.363579][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3932.363890][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3932.363890][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3932.363890][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3932.363890][   T73]      fib6_nh_init+0xa22/0x1580
[ 3932.363890][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3932.363890][   T73]      ip6_route_add+0x1c/0x140
[ 3932.363890][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3932.363890][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3932.363890][   T73]      netlink_rcv_skb+0x130/0x360
[ 3932.363890][   T73]      netlink_unicast+0x449/0x710
[ 3932.363890][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3932.363890][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3932.363890][   T73]      ___sys_sendmsg+0xee/0x170
[ 3932.363890][   T73]      __sys_sendmsg+0xcd/0x170
[ 3932.363890][   T73]      do_syscall_64+0xc6/0x1e0
[ 3932.363890][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3932.363890][   T73] 
[ 3932.366199][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3932.366199][   T73]      dst_init+0x84/0x4a0
[ 3932.366199][   T73]      dst_alloc+0x97/0x150
[ 3932.366199][   T73]      ip6_dst_alloc+0x23/0x90
[ 3932.366199][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3932.366199][   T73]      ip6_pol_route+0x56f/0x840
[ 3932.366199][   T73]      fib6_rule_lookup+0x456/0x630
[ 3932.366199][   T73]      ip6_route_input+0x59c/0xa50
[ 3932.366199][   T73]      ipv6_rcv+0x397/0x810
[ 3932.366199][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3932.366199][   T73]      process_backlog+0x101/0x620
[ 3932.366199][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3932.366199][   T73]      net_rx_action+0x495/0xbe0
[ 3932.366199][   T73]      __do_softirq+0x1b5/0x7f6
[ 3932.366199][   T73] 
[ 3932.368261][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3932.368261][   T73]      netdev_get_by_index+0x5e/0x80
[ 3932.368261][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3932.368261][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3932.368261][   T73]      ip6_route_add+0x1c/0x140
[ 3932.368261][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3932.368261][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3932.368261][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3932.368261][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3932.368261][   T73]      netlink_rcv_skb+0x130/0x360
[ 3932.368261][   T73]      netlink_unicast+0x449/0x710
[ 3932.368261][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3932.368261][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3932.368261][   T73]      ___sys_sendmsg+0xee/0x170
[ 3932.368261][   T73]      __sys_sendmsg+0xcd/0x170
[ 3932.368261][   T73]      do_syscall_64+0xc6/0x1e0
[ 3932.368261][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3932.368261][   T73] 
[ 3932.370846][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3932.370846][   T73]      netdev_get_by_index+0x5e/0x80
[ 3932.370846][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3932.370846][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3932.370846][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3932.370846][   T73]      ipv6_add_addr+0x411/0x2000
[ 3932.370846][   T73]      inet6_addr_add+0x30e/0xa40
[ 3932.370846][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3932.370846][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3932.370846][   T73]      netlink_rcv_skb+0x130/0x360
[ 3932.370846][   T73]      netlink_unicast+0x449/0x710
[ 3932.370846][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3932.370846][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3932.370846][   T73]      ___sys_sendmsg+0xee/0x170
[ 3932.370846][   T73]      __sys_sendmsg+0xcd/0x170
[ 3932.370846][   T73]      do_syscall_64+0xc6/0x1e0
[ 3932.370846][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3932.370846][   T73] 
[ 3932.373315][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3932.373315][   T73]      netdev_get_by_index+0x5e/0x80
[ 3932.373315][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3932.373315][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3932.373315][   T73]      ip6_route_add+0x1c/0x140
[ 3932.373315][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3932.373315][   T73]      addrconf_add_dev+0xe2/0x170
[ 3932.373315][   T73]      inet6_addr_add+0x12f/0xa40
[ 3932.373315][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3932.373315][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3932.373315][   T73]      netlink_rcv_skb+0x130/0x360
[ 3932.373315][   T73]      netlink_unicast+0x449/0x710
[ 3932.373315][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3932.373315][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3932.373315][   T73]      ___sys_sendmsg+0xee/0x170
[ 3932.373315][   T73]      __sys_sendmsg+0xcd/0x170
[ 3932.373315][   T73]      do_syscall_64+0xc6/0x1e0
[ 3932.373315][   T73] 
[ 3932.375729][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3932.375729][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3932.375729][   T73]      ipv6_find_idev+0x102/0x170
[ 3932.375729][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3932.375729][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3932.375729][   T73]      netlink_rcv_skb+0x130/0x360
[ 3932.375729][   T73]      netlink_unicast+0x449/0x710
[ 3932.375729][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3932.375729][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3932.375729][   T73]      ___sys_sendmsg+0xee/0x170
[ 3932.375729][   T73]      __sys_sendmsg+0xcd/0x170
[ 3932.375729][   T73]      do_syscall_64+0xc6/0x1e0
[ 3932.375729][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3932.375729][   T73] 
[ 3932.377766][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3932.377766][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3932.377766][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3932.377766][   T73]      ipv6_find_idev+0x102/0x170
[ 3932.377766][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3932.377766][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3932.377766][   T73]      netlink_rcv_skb+0x130/0x360
[ 3932.377766][   T73]      netlink_unicast+0x449/0x710
[ 3932.377766][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3932.377766][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3932.377766][   T73]      ___sys_sendmsg+0xee/0x170
[ 3932.377766][   T73]      __sys_sendmsg+0xcd/0x170
[ 3932.377766][   T73]      do_syscall_64+0xc6/0x1e0
[ 3932.377766][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3932.377766][   T73] 
[ 3932.379932][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3932.380317][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3932.380317][   T73]      netdev_get_by_index+0x5e/0x80
[ 3932.380317][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3932.380317][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3932.380317][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3932.380317][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3932.380317][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3932.380317][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3932.380317][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3932.380317][   T73]      addrconf_dad_begin+0x310/0x670
[ 3932.380317][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3932.380317][   T73]      process_one_work+0x84d/0x18a0
[ 3932.380317][   T73]      worker_thread+0x587/0xd30
[ 3932.380317][   T73]      kthread+0x28a/0x350
[ 3932.380317][   T73]      ret_from_fork+0x31/0x70
[ 3932.380317][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3932.380317][   T73] 
[ 3932.382728][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3932.382728][   T73]      netdev_get_by_index+0x5e/0x80
[ 3932.382728][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3932.382728][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3932.382728][   T73]      ip6_route_add+0x1c/0x140
[ 3932.382728][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3932.382728][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3932.382728][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3932.382728][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3932.382728][   T73]      netlink_rcv_skb+0x130/0x360
[ 3932.382728][   T73]      netlink_unicast+0x449/0x710
[ 3932.382728][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3932.382728][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3932.382728][   T73]      ___sys_sendmsg+0xee/0x170
[ 3932.382728][   T73]      __sys_sendmsg+0xcd/0x170
[ 3932.382728][   T73]      do_syscall_64+0xc6/0x1e0
[ 3932.382728][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3932.382728][   T73] 
[ 3932.385156][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3932.385156][   T73]      netdev_get_by_index+0x5e/0x80
[ 3932.385156][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3932.385156][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3932.385156][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3932.385156][   T73]      ipv6_add_addr+0x411/0x2000
[ 3932.385156][   T73]      inet6_addr_add+0x30e/0xa40
[ 3932.385156][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3932.385156][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3932.385156][   T73]      netlink_rcv_skb+0x130/0x360
[ 3932.385156][   T73]      netlink_unicast+0x449/0x710
[ 3932.385156][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3932.385156][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3932.385156][   T73]      ___sys_sendmsg+0xee/0x170
[ 3932.385156][   T73]      __sys_sendmsg+0xcd/0x170
[ 3932.385156][   T73]      do_syscall_64+0xc6/0x1e0
[ 3932.385156][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3932.385156][   T73] 
[ 3932.387495][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3932.387495][   T73]      netdev_get_by_index+0x5e/0x80
[ 3932.387495][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3932.387495][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3932.387495][   T73]      ip6_route_add+0x1c/0x140
[ 3932.387495][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3932.387495][   T73]      addrconf_add_dev+0xe2/0x170
[ 3932.387495][   T73]      inet6_addr_add+0x12f/0xa40
[ 3932.387495][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3932.387495][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3932.387495][   T73]      netlink_rcv_skb+0x130/0x360
[ 3932.387495][   T73]      netlink_unicast+0x449/0x710
[ 3932.387495][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3932.387495][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3932.387495][   T73]      ___sys_sendmsg+0xee/0x170
[ 3932.387495][   T73]      __sys_sendmsg+0xcd/0x170
[ 3932.387495][   T73]      do_syscall_64+0xc6/0x1e0
[ 3932.387495][   T73] 
[ 3932.389861][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3932.389861][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3932.389861][   T73]      ipv6_find_idev+0x102/0x170
[ 3932.389861][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3932.389861][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3932.389861][   T73]      netlink_rcv_skb+0x130/0x360
[ 3932.389861][   T73]      netlink_unicast+0x449/0x710
[ 3932.389861][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3932.389861][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3932.389861][   T73]      ___sys_sendmsg+0xee/0x170
[ 3932.389861][   T73]      __sys_sendmsg+0xcd/0x170
[ 3932.389861][   T73]      do_syscall_64+0xc6/0x1e0
[ 3932.389861][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3932.389861][   T73] 
[ 3932.391761][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3932.391761][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3932.391761][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3932.391761][   T73]      ipv6_find_idev+0x102/0x170
[ 3932.391761][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3932.391761][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3932.391761][   T73]      netlink_rcv_skb+0x130/0x360
[ 3932.391761][   T73]      netlink_unicast+0x449/0x710
[ 3932.391761][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3932.391761][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3932.391761][   T73]      ___sys_sendmsg+0xee/0x170
[ 3932.391761][   T73]      __sys_sendmsg+0xcd/0x170
[ 3932.391761][   T73]      do_syscall_64+0xc6/0x1e0
[ 3932.391761][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3932.391761][   T73] 
[ 3942.455692][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3942.456196][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3942.456196][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3942.456196][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3942.456196][   T73]      fib6_nh_init+0xa22/0x1580
[ 3942.456196][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3942.456196][   T73]      ip6_route_add+0x1c/0x140
[ 3942.456196][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3942.456196][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3942.456196][   T73]      netlink_rcv_skb+0x130/0x360
[ 3942.456196][   T73]      netlink_unicast+0x449/0x710
[ 3942.456196][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3942.456196][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3942.456196][   T73]      ___sys_sendmsg+0xee/0x170
[ 3942.456196][   T73]      __sys_sendmsg+0xcd/0x170
[ 3942.456196][   T73]      do_syscall_64+0xc6/0x1e0
[ 3942.456196][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3942.456196][   T73] 
[ 3942.458113][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3942.458113][   T73]      dst_init+0x84/0x4a0
[ 3942.458113][   T73]      dst_alloc+0x97/0x150
[ 3942.458113][   T73]      ip6_dst_alloc+0x23/0x90
[ 3942.458113][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3942.458113][   T73]      ip6_pol_route+0x56f/0x840
[ 3942.458113][   T73]      fib6_rule_lookup+0x456/0x630
[ 3942.458113][   T73]      ip6_route_input+0x59c/0xa50
[ 3942.458113][   T73]      ipv6_rcv+0x397/0x810
[ 3942.458113][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3942.458113][   T73]      process_backlog+0x101/0x620
[ 3942.458113][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3942.458113][   T73]      net_rx_action+0x495/0xbe0
[ 3942.458113][   T73]      __do_softirq+0x1b5/0x7f6
[ 3942.458113][   T73] 
[ 3942.459774][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3942.459774][   T73]      netdev_get_by_index+0x5e/0x80
[ 3942.459774][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3942.459774][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3942.459774][   T73]      ip6_route_add+0x1c/0x140
[ 3942.459774][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3942.459774][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3942.459774][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3942.459774][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3942.459774][   T73]      netlink_rcv_skb+0x130/0x360
[ 3942.459774][   T73]      netlink_unicast+0x449/0x710
[ 3942.459774][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3942.459774][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3942.459774][   T73]      ___sys_sendmsg+0xee/0x170
[ 3942.459774][   T73]      __sys_sendmsg+0xcd/0x170
[ 3942.459774][   T73]      do_syscall_64+0xc6/0x1e0
[ 3942.459774][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3942.459774][   T73] 
[ 3942.461814][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3942.461814][   T73]      netdev_get_by_index+0x5e/0x80
[ 3942.461814][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3942.461814][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3942.461814][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3942.461814][   T73]      ipv6_add_addr+0x411/0x2000
[ 3942.461814][   T73]      inet6_addr_add+0x30e/0xa40
[ 3942.461814][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3942.461814][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3942.461814][   T73]      netlink_rcv_skb+0x130/0x360
[ 3942.461814][   T73]      netlink_unicast+0x449/0x710
[ 3942.461814][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3942.461814][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3942.461814][   T73]      ___sys_sendmsg+0xee/0x170
[ 3942.461814][   T73]      __sys_sendmsg+0xcd/0x170
[ 3942.461814][   T73]      do_syscall_64+0xc6/0x1e0
[ 3942.461814][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3942.461814][   T73] 
[ 3942.463837][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3942.463837][   T73]      netdev_get_by_index+0x5e/0x80
[ 3942.463837][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3942.463837][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3942.463837][   T73]      ip6_route_add+0x1c/0x140
[ 3942.463837][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3942.463837][   T73]      addrconf_add_dev+0xe2/0x170
[ 3942.463837][   T73]      inet6_addr_add+0x12f/0xa40
[ 3942.463837][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3942.463837][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3942.463837][   T73]      netlink_rcv_skb+0x130/0x360
[ 3942.463837][   T73]      netlink_unicast+0x449/0x710
[ 3942.463837][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3942.463837][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3942.463837][   T73]      ___sys_sendmsg+0xee/0x170
[ 3942.463837][   T73]      __sys_sendmsg+0xcd/0x170
[ 3942.463837][   T73]      do_syscall_64+0xc6/0x1e0
[ 3942.463837][   T73] 
[ 3942.465822][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3942.465822][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3942.465822][   T73]      ipv6_find_idev+0x102/0x170
[ 3942.465822][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3942.465822][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3942.465822][   T73]      netlink_rcv_skb+0x130/0x360
[ 3942.465822][   T73]      netlink_unicast+0x449/0x710
[ 3942.465822][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3942.465822][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3942.465822][   T73]      ___sys_sendmsg+0xee/0x170
[ 3942.465822][   T73]      __sys_sendmsg+0xcd/0x170
[ 3942.465822][   T73]      do_syscall_64+0xc6/0x1e0
[ 3942.465822][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3942.465822][   T73] 
[ 3942.467378][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3942.467378][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3942.467378][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3942.467378][   T73]      ipv6_find_idev+0x102/0x170
[ 3942.467378][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3942.467378][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3942.467378][   T73]      netlink_rcv_skb+0x130/0x360
[ 3942.467378][   T73]      netlink_unicast+0x449/0x710
[ 3942.467378][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3942.467378][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3942.467378][   T73]      ___sys_sendmsg+0xee/0x170
[ 3942.467378][   T73]      __sys_sendmsg+0xcd/0x170
[ 3942.467378][   T73]      do_syscall_64+0xc6/0x1e0
[ 3942.467378][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3942.467378][   T73] 
[ 3942.469078][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3942.469367][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3942.469367][   T73]      netdev_get_by_index+0x5e/0x80
[ 3942.469367][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3942.469367][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3942.469367][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3942.469367][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3942.469367][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3942.469367][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3942.469367][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3942.469367][   T73]      addrconf_dad_begin+0x310/0x670
[ 3942.469367][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3942.469367][   T73]      process_one_work+0x84d/0x18a0
[ 3942.469367][   T73]      worker_thread+0x587/0xd30
[ 3942.469367][   T73]      kthread+0x28a/0x350
[ 3942.469367][   T73]      ret_from_fork+0x31/0x70
[ 3942.469367][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3942.469367][   T73] 
[ 3942.471300][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3942.471300][   T73]      netdev_get_by_index+0x5e/0x80
[ 3942.471300][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3942.471300][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3942.471300][   T73]      ip6_route_add+0x1c/0x140
[ 3942.471300][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3942.471300][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3942.471300][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3942.471300][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3942.471300][   T73]      netlink_rcv_skb+0x130/0x360
[ 3942.471300][   T73]      netlink_unicast+0x449/0x710
[ 3942.471300][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3942.471300][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3942.471300][   T73]      ___sys_sendmsg+0xee/0x170
[ 3942.471300][   T73]      __sys_sendmsg+0xcd/0x170
[ 3942.471300][   T73]      do_syscall_64+0xc6/0x1e0
[ 3942.471300][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3942.471300][   T73] 
[ 3942.473319][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3942.473319][   T73]      netdev_get_by_index+0x5e/0x80
[ 3942.473319][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3942.473319][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3942.473319][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3942.473319][   T73]      ipv6_add_addr+0x411/0x2000
[ 3942.473319][   T73]      inet6_addr_add+0x30e/0xa40
[ 3942.473319][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3942.473319][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3942.473319][   T73]      netlink_rcv_skb+0x130/0x360
[ 3942.473319][   T73]      netlink_unicast+0x449/0x710
[ 3942.473319][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3942.473319][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3942.473319][   T73]      ___sys_sendmsg+0xee/0x170
[ 3942.473319][   T73]      __sys_sendmsg+0xcd/0x170
[ 3942.473319][   T73]      do_syscall_64+0xc6/0x1e0
[ 3942.473319][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3942.473319][   T73] 
[ 3942.475353][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3942.475353][   T73]      netdev_get_by_index+0x5e/0x80
[ 3942.475353][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3942.475353][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3942.475353][   T73]      ip6_route_add+0x1c/0x140
[ 3942.475353][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3942.475353][   T73]      addrconf_add_dev+0xe2/0x170
[ 3942.475353][   T73]      inet6_addr_add+0x12f/0xa40
[ 3942.475353][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3942.475353][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3942.475353][   T73]      netlink_rcv_skb+0x130/0x360
[ 3942.475353][   T73]      netlink_unicast+0x449/0x710
[ 3942.475353][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3942.475353][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3942.475353][   T73]      ___sys_sendmsg+0xee/0x170
[ 3942.475353][   T73]      __sys_sendmsg+0xcd/0x170
[ 3942.475353][   T73]      do_syscall_64+0xc6/0x1e0
[ 3942.475353][   T73] 
[ 3942.477326][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3942.477326][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3942.477326][   T73]      ipv6_find_idev+0x102/0x170
[ 3942.477326][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3942.477326][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3942.477326][   T73]      netlink_rcv_skb+0x130/0x360
[ 3942.477326][   T73]      netlink_unicast+0x449/0x710
[ 3942.477326][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3942.477326][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3942.477326][   T73]      ___sys_sendmsg+0xee/0x170
[ 3942.477326][   T73]      __sys_sendmsg+0xcd/0x170
[ 3942.477326][   T73]      do_syscall_64+0xc6/0x1e0
[ 3942.477326][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3942.477326][   T73] 
[ 3942.478859][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3942.478859][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3942.478859][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3942.478859][   T73]      ipv6_find_idev+0x102/0x170
[ 3942.478859][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3942.478859][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3942.478859][   T73]      netlink_rcv_skb+0x130/0x360
[ 3942.478859][   T73]      netlink_unicast+0x449/0x710
[ 3942.478859][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3942.478859][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3942.478859][   T73]      ___sys_sendmsg+0xee/0x170
[ 3942.478859][   T73]      __sys_sendmsg+0xcd/0x170
[ 3942.478859][   T73]      do_syscall_64+0xc6/0x1e0
[ 3942.478859][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3942.478859][   T73] 
[ 3942.480532][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3942.480823][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3942.480823][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3942.480823][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3942.480823][   T73]      fib6_nh_init+0xa22/0x1580
[ 3942.480823][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3942.480823][   T73]      ip6_route_add+0x1c/0x140
[ 3942.480823][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3942.480823][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3942.480823][   T73]      netlink_rcv_skb+0x130/0x360
[ 3942.480823][   T73]      netlink_unicast+0x449/0x710
[ 3942.480823][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3942.480823][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3942.480823][   T73]      ___sys_sendmsg+0xee/0x170
[ 3942.480823][   T73]      __sys_sendmsg+0xcd/0x170
[ 3942.480823][   T73]      do_syscall_64+0xc6/0x1e0
[ 3942.480823][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3942.480823][   T73] 
[ 3942.482880][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3942.482880][   T73]      dst_init+0x84/0x4a0
[ 3942.482880][   T73]      dst_alloc+0x97/0x150
[ 3942.482880][   T73]      ip6_dst_alloc+0x23/0x90
[ 3942.482880][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3942.482880][   T73]      ip6_pol_route+0x56f/0x840
[ 3942.482880][   T73]      fib6_rule_lookup+0x456/0x630
[ 3942.482880][   T73]      ip6_route_input+0x59c/0xa50
[ 3942.482880][   T73]      ipv6_rcv+0x397/0x810
[ 3942.482880][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3942.482880][   T73]      process_backlog+0x101/0x620
[ 3942.482880][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3942.482880][   T73]      net_rx_action+0x495/0xbe0
[ 3942.482880][   T73]      __do_softirq+0x1b5/0x7f6
[ 3942.482880][   T73] 
[ 3942.484690][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3942.484690][   T73]      netdev_get_by_index+0x5e/0x80
[ 3942.484690][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3942.484690][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3942.484690][   T73]      ip6_route_add+0x1c/0x140
[ 3942.484690][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3942.484690][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3942.484690][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3942.484690][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3942.484690][   T73]      netlink_rcv_skb+0x130/0x360
[ 3942.484690][   T73]      netlink_unicast+0x449/0x710
[ 3942.484690][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3942.484690][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3942.484690][   T73]      ___sys_sendmsg+0xee/0x170
[ 3942.484690][   T73]      __sys_sendmsg+0xcd/0x170
[ 3942.484690][   T73]      do_syscall_64+0xc6/0x1e0
[ 3942.484690][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3942.484690][   T73] 
[ 3942.486940][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3942.486940][   T73]      netdev_get_by_index+0x5e/0x80
[ 3942.486940][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3942.486940][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3942.486940][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3942.486940][   T73]      ipv6_add_addr+0x411/0x2000
[ 3942.486940][   T73]      inet6_addr_add+0x30e/0xa40
[ 3942.486940][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3942.486940][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3942.486940][   T73]      netlink_rcv_skb+0x130/0x360
[ 3942.486940][   T73]      netlink_unicast+0x449/0x710
[ 3942.486940][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3942.486940][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3942.486940][   T73]      ___sys_sendmsg+0xee/0x170
[ 3942.486940][   T73]      __sys_sendmsg+0xcd/0x170
[ 3942.486940][   T73]      do_syscall_64+0xc6/0x1e0
[ 3942.486940][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3942.486940][   T73] 
[ 3942.489241][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3942.489241][   T73]      netdev_get_by_index+0x5e/0x80
[ 3942.489241][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3942.489241][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3942.489241][   T73]      ip6_route_add+0x1c/0x140
[ 3942.489241][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3942.489241][   T73]      addrconf_add_dev+0xe2/0x170
[ 3942.489241][   T73]      inet6_addr_add+0x12f/0xa40
[ 3942.489241][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3942.489241][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3942.489241][   T73]      netlink_rcv_skb+0x130/0x360
[ 3942.489241][   T73]      netlink_unicast+0x449/0x710
[ 3942.489241][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3942.489241][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3942.489241][   T73]      ___sys_sendmsg+0xee/0x170
[ 3942.489241][   T73]      __sys_sendmsg+0xcd/0x170
[ 3942.489241][   T73]      do_syscall_64+0xc6/0x1e0
[ 3942.489241][   T73] 
[ 3942.491384][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3942.491384][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3942.491384][   T73]      ipv6_find_idev+0x102/0x170
[ 3942.491384][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3942.491384][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3942.491384][   T73]      netlink_rcv_skb+0x130/0x360
[ 3942.491384][   T73]      netlink_unicast+0x449/0x710
[ 3942.491384][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3942.491384][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3942.491384][   T73]      ___sys_sendmsg+0xee/0x170
[ 3942.491384][   T73]      __sys_sendmsg+0xcd/0x170
[ 3942.491384][   T73]      do_syscall_64+0xc6/0x1e0
[ 3942.491384][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3942.491384][   T73] 
[ 3942.493105][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3942.493105][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3942.493105][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3942.493105][   T73]      ipv6_find_idev+0x102/0x170
[ 3942.493105][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3942.493105][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3942.493105][   T73]      netlink_rcv_skb+0x130/0x360
[ 3942.493105][   T73]      netlink_unicast+0x449/0x710
[ 3942.493105][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3942.493105][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3942.493105][   T73]      ___sys_sendmsg+0xee/0x170
[ 3942.493105][   T73]      __sys_sendmsg+0xcd/0x170
[ 3942.493105][   T73]      do_syscall_64+0xc6/0x1e0
[ 3942.493105][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3942.493105][   T73] 
[ 3942.495083][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3942.495357][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3942.495357][   T73]      netdev_get_by_index+0x5e/0x80
[ 3942.495357][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3942.495357][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3942.495357][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3942.495357][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3942.495357][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3942.495357][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3942.495357][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3942.495357][   T73]      addrconf_dad_begin+0x310/0x670
[ 3942.495357][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3942.495357][   T73]      process_one_work+0x84d/0x18a0
[ 3942.495357][   T73]      worker_thread+0x587/0xd30
[ 3942.495357][   T73]      kthread+0x28a/0x350
[ 3942.495357][   T73]      ret_from_fork+0x31/0x70
[ 3942.495357][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3942.495357][   T73] 
[ 3942.497524][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3942.497524][   T73]      netdev_get_by_index+0x5e/0x80
[ 3942.497524][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3942.497524][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3942.497524][   T73]      ip6_route_add+0x1c/0x140
[ 3942.497524][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3942.497524][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3942.497524][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3942.497524][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3942.497524][   T73]      netlink_rcv_skb+0x130/0x360
[ 3942.497524][   T73]      netlink_unicast+0x449/0x710
[ 3942.497524][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3942.497524][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3942.497524][   T73]      ___sys_sendmsg+0xee/0x170
[ 3942.497524][   T73]      __sys_sendmsg+0xcd/0x170
[ 3942.497524][   T73]      do_syscall_64+0xc6/0x1e0
[ 3942.497524][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3942.497524][   T73] 
[ 3942.499768][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3942.499768][   T73]      netdev_get_by_index+0x5e/0x80
[ 3942.499768][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3942.499768][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3942.499768][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3942.499768][   T73]      ipv6_add_addr+0x411/0x2000
[ 3942.499768][   T73]      inet6_addr_add+0x30e/0xa40
[ 3942.499768][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3942.499768][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3942.499768][   T73]      netlink_rcv_skb+0x130/0x360
[ 3942.499768][   T73]      netlink_unicast+0x449/0x710
[ 3942.499768][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3942.499768][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3942.499768][   T73]      ___sys_sendmsg+0xee/0x170
[ 3942.499768][   T73]      __sys_sendmsg+0xcd/0x170
[ 3942.499768][   T73]      do_syscall_64+0xc6/0x1e0
[ 3942.499768][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3942.499768][   T73] 
[ 3942.502915][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3942.502915][   T73]      netdev_get_by_index+0x5e/0x80
[ 3942.502915][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3942.502915][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3942.502915][   T73]      ip6_route_add+0x1c/0x140
[ 3942.502915][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3942.502915][   T73]      addrconf_add_dev+0xe2/0x170
[ 3942.502915][   T73]      inet6_addr_add+0x12f/0xa40
[ 3942.502915][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3942.502915][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3942.502915][   T73]      netlink_rcv_skb+0x130/0x360
[ 3942.502915][   T73]      netlink_unicast+0x449/0x710
[ 3942.502915][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3942.502915][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3942.502915][   T73]      ___sys_sendmsg+0xee/0x170
[ 3942.502915][   T73]      __sys_sendmsg+0xcd/0x170
[ 3942.502915][   T73]      do_syscall_64+0xc6/0x1e0
[ 3942.502915][   T73] 
[ 3942.505133][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3942.505133][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3942.505133][   T73]      ipv6_find_idev+0x102/0x170
[ 3942.505133][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3942.505133][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3942.505133][   T73]      netlink_rcv_skb+0x130/0x360
[ 3942.505133][   T73]      netlink_unicast+0x449/0x710
[ 3942.505133][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3942.505133][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3942.505133][   T73]      ___sys_sendmsg+0xee/0x170
[ 3942.505133][   T73]      __sys_sendmsg+0xcd/0x170
[ 3942.505133][   T73]      do_syscall_64+0xc6/0x1e0
[ 3942.505133][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3942.505133][   T73] 
[ 3942.506962][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3942.506962][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3942.506962][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3942.506962][   T73]      ipv6_find_idev+0x102/0x170
[ 3942.506962][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3942.506962][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3942.506962][   T73]      netlink_rcv_skb+0x130/0x360
[ 3942.506962][   T73]      netlink_unicast+0x449/0x710
[ 3942.506962][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3942.506962][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3942.506962][   T73]      ___sys_sendmsg+0xee/0x170
[ 3942.506962][   T73]      __sys_sendmsg+0xcd/0x170
[ 3942.506962][   T73]      do_syscall_64+0xc6/0x1e0
[ 3942.506962][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3942.506962][   T73] 
[ 3952.759818][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3952.760242][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3952.760242][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3952.760242][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3952.760242][   T73]      fib6_nh_init+0xa22/0x1580
[ 3952.760242][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3952.760242][   T73]      ip6_route_add+0x1c/0x140
[ 3952.760242][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3952.760242][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3952.760242][   T73]      netlink_rcv_skb+0x130/0x360
[ 3952.760242][   T73]      netlink_unicast+0x449/0x710
[ 3952.760242][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3952.760242][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3952.760242][   T73]      ___sys_sendmsg+0xee/0x170
[ 3952.760242][   T73]      __sys_sendmsg+0xcd/0x170
[ 3952.760242][   T73]      do_syscall_64+0xc6/0x1e0
[ 3952.760242][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3952.760242][   T73] 
[ 3952.762138][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3952.762138][   T73]      dst_init+0x84/0x4a0
[ 3952.762138][   T73]      dst_alloc+0x97/0x150
[ 3952.762138][   T73]      ip6_dst_alloc+0x23/0x90
[ 3952.762138][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3952.762138][   T73]      ip6_pol_route+0x56f/0x840
[ 3952.762138][   T73]      fib6_rule_lookup+0x456/0x630
[ 3952.762138][   T73]      ip6_route_input+0x59c/0xa50
[ 3952.762138][   T73]      ipv6_rcv+0x397/0x810
[ 3952.762138][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3952.762138][   T73]      process_backlog+0x101/0x620
[ 3952.762138][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3952.762138][   T73]      net_rx_action+0x495/0xbe0
[ 3952.762138][   T73]      __do_softirq+0x1b5/0x7f6
[ 3952.762138][   T73] 
[ 3952.763788][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3952.763788][   T73]      netdev_get_by_index+0x5e/0x80
[ 3952.763788][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3952.763788][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3952.763788][   T73]      ip6_route_add+0x1c/0x140
[ 3952.763788][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3952.763788][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3952.763788][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3952.763788][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3952.763788][   T73]      netlink_rcv_skb+0x130/0x360
[ 3952.763788][   T73]      netlink_unicast+0x449/0x710
[ 3952.763788][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3952.763788][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3952.763788][   T73]      ___sys_sendmsg+0xee/0x170
[ 3952.763788][   T73]      __sys_sendmsg+0xcd/0x170
[ 3952.763788][   T73]      do_syscall_64+0xc6/0x1e0
[ 3952.763788][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3952.763788][   T73] 
[ 3952.765916][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3952.765916][   T73]      netdev_get_by_index+0x5e/0x80
[ 3952.765916][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3952.765916][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3952.765916][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3952.765916][   T73]      ipv6_add_addr+0x411/0x2000
[ 3952.765916][   T73]      inet6_addr_add+0x30e/0xa40
[ 3952.765916][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3952.765916][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3952.765916][   T73]      netlink_rcv_skb+0x130/0x360
[ 3952.765916][   T73]      netlink_unicast+0x449/0x710
[ 3952.765916][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3952.765916][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3952.765916][   T73]      ___sys_sendmsg+0xee/0x170
[ 3952.765916][   T73]      __sys_sendmsg+0xcd/0x170
[ 3952.765916][   T73]      do_syscall_64+0xc6/0x1e0
[ 3952.765916][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3952.765916][   T73] 
[ 3952.767908][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3952.767908][   T73]      netdev_get_by_index+0x5e/0x80
[ 3952.767908][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3952.767908][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3952.767908][   T73]      ip6_route_add+0x1c/0x140
[ 3952.767908][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3952.767908][   T73]      addrconf_add_dev+0xe2/0x170
[ 3952.767908][   T73]      inet6_addr_add+0x12f/0xa40
[ 3952.767908][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3952.767908][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3952.767908][   T73]      netlink_rcv_skb+0x130/0x360
[ 3952.767908][   T73]      netlink_unicast+0x449/0x710
[ 3952.767908][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3952.767908][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3952.767908][   T73]      ___sys_sendmsg+0xee/0x170
[ 3952.767908][   T73]      __sys_sendmsg+0xcd/0x170
[ 3952.767908][   T73]      do_syscall_64+0xc6/0x1e0
[ 3952.767908][   T73] 
[ 3952.769894][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3952.769894][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3952.769894][   T73]      ipv6_find_idev+0x102/0x170
[ 3952.769894][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3952.769894][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3952.769894][   T73]      netlink_rcv_skb+0x130/0x360
[ 3952.769894][   T73]      netlink_unicast+0x449/0x710
[ 3952.769894][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3952.769894][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3952.769894][   T73]      ___sys_sendmsg+0xee/0x170
[ 3952.769894][   T73]      __sys_sendmsg+0xcd/0x170
[ 3952.769894][   T73]      do_syscall_64+0xc6/0x1e0
[ 3952.769894][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3952.769894][   T73] 
[ 3952.771429][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3952.771429][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3952.771429][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3952.771429][   T73]      ipv6_find_idev+0x102/0x170
[ 3952.771429][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3952.771429][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3952.771429][   T73]      netlink_rcv_skb+0x130/0x360
[ 3952.771429][   T73]      netlink_unicast+0x449/0x710
[ 3952.771429][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3952.771429][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3952.771429][   T73]      ___sys_sendmsg+0xee/0x170
[ 3952.771429][   T73]      __sys_sendmsg+0xcd/0x170
[ 3952.771429][   T73]      do_syscall_64+0xc6/0x1e0
[ 3952.771429][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3952.771429][   T73] 
[ 3952.773123][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3952.773406][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3952.773406][   T73]      netdev_get_by_index+0x5e/0x80
[ 3952.773406][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3952.773406][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3952.773406][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3952.773406][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3952.773406][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3952.773406][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3952.773406][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3952.773406][   T73]      addrconf_dad_begin+0x310/0x670
[ 3952.773406][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3952.773406][   T73]      process_one_work+0x84d/0x18a0
[ 3952.773406][   T73]      worker_thread+0x587/0xd30
[ 3952.773406][   T73]      kthread+0x28a/0x350
[ 3952.773406][   T73]      ret_from_fork+0x31/0x70
[ 3952.773406][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3952.773406][   T73] 
[ 3952.775310][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3952.775310][   T73]      netdev_get_by_index+0x5e/0x80
[ 3952.775310][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3952.775310][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3952.775310][   T73]      ip6_route_add+0x1c/0x140
[ 3952.775310][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3952.775310][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3952.775310][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3952.775310][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3952.775310][   T73]      netlink_rcv_skb+0x130/0x360
[ 3952.775310][   T73]      netlink_unicast+0x449/0x710
[ 3952.775310][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3952.775310][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3952.775310][   T73]      ___sys_sendmsg+0xee/0x170
[ 3952.775310][   T73]      __sys_sendmsg+0xcd/0x170
[ 3952.775310][   T73]      do_syscall_64+0xc6/0x1e0
[ 3952.775310][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3952.775310][   T73] 
[ 3952.777326][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3952.777326][   T73]      netdev_get_by_index+0x5e/0x80
[ 3952.777326][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3952.777326][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3952.777326][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3952.777326][   T73]      ipv6_add_addr+0x411/0x2000
[ 3952.777326][   T73]      inet6_addr_add+0x30e/0xa40
[ 3952.777326][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3952.777326][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3952.777326][   T73]      netlink_rcv_skb+0x130/0x360
[ 3952.777326][   T73]      netlink_unicast+0x449/0x710
[ 3952.777326][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3952.777326][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3952.777326][   T73]      ___sys_sendmsg+0xee/0x170
[ 3952.777326][   T73]      __sys_sendmsg+0xcd/0x170
[ 3952.777326][   T73]      do_syscall_64+0xc6/0x1e0
[ 3952.777326][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3952.777326][   T73] 
[ 3952.779314][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3952.779314][   T73]      netdev_get_by_index+0x5e/0x80
[ 3952.779314][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3952.779314][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3952.779314][   T73]      ip6_route_add+0x1c/0x140
[ 3952.779314][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3952.779314][   T73]      addrconf_add_dev+0xe2/0x170
[ 3952.779314][   T73]      inet6_addr_add+0x12f/0xa40
[ 3952.779314][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3952.779314][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3952.779314][   T73]      netlink_rcv_skb+0x130/0x360
[ 3952.779314][   T73]      netlink_unicast+0x449/0x710
[ 3952.779314][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3952.779314][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3952.779314][   T73]      ___sys_sendmsg+0xee/0x170
[ 3952.779314][   T73]      __sys_sendmsg+0xcd/0x170
[ 3952.779314][   T73]      do_syscall_64+0xc6/0x1e0
[ 3952.779314][   T73] 
[ 3952.781281][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3952.781281][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3952.781281][   T73]      ipv6_find_idev+0x102/0x170
[ 3952.781281][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3952.781281][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3952.781281][   T73]      netlink_rcv_skb+0x130/0x360
[ 3952.781281][   T73]      netlink_unicast+0x449/0x710
[ 3952.781281][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3952.781281][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3952.781281][   T73]      ___sys_sendmsg+0xee/0x170
[ 3952.781281][   T73]      __sys_sendmsg+0xcd/0x170
[ 3952.781281][   T73]      do_syscall_64+0xc6/0x1e0
[ 3952.781281][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3952.781281][   T73] 
[ 3952.782815][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3952.782815][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3952.782815][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3952.782815][   T73]      ipv6_find_idev+0x102/0x170
[ 3952.782815][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3952.782815][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3952.782815][   T73]      netlink_rcv_skb+0x130/0x360
[ 3952.782815][   T73]      netlink_unicast+0x449/0x710
[ 3952.782815][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3952.782815][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3952.782815][   T73]      ___sys_sendmsg+0xee/0x170
[ 3952.782815][   T73]      __sys_sendmsg+0xcd/0x170
[ 3952.782815][   T73]      do_syscall_64+0xc6/0x1e0
[ 3952.782815][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3952.782815][   T73] 
[ 3952.784483][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3952.784779][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3952.784779][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3952.784779][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3952.784779][   T73]      fib6_nh_init+0xa22/0x1580
[ 3952.784779][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3952.784779][   T73]      ip6_route_add+0x1c/0x140
[ 3952.784779][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3952.784779][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3952.784779][   T73]      netlink_rcv_skb+0x130/0x360
[ 3952.784779][   T73]      netlink_unicast+0x449/0x710
[ 3952.784779][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3952.784779][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3952.784779][   T73]      ___sys_sendmsg+0xee/0x170
[ 3952.784779][   T73]      __sys_sendmsg+0xcd/0x170
[ 3952.784779][   T73]      do_syscall_64+0xc6/0x1e0
[ 3952.784779][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3952.784779][   T73] 
[ 3952.786838][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3952.786838][   T73]      dst_init+0x84/0x4a0
[ 3952.786838][   T73]      dst_alloc+0x97/0x150
[ 3952.786838][   T73]      ip6_dst_alloc+0x23/0x90
[ 3952.786838][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3952.786838][   T73]      ip6_pol_route+0x56f/0x840
[ 3952.786838][   T73]      fib6_rule_lookup+0x456/0x630
[ 3952.786838][   T73]      ip6_route_input+0x59c/0xa50
[ 3952.786838][   T73]      ipv6_rcv+0x397/0x810
[ 3952.786838][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3952.786838][   T73]      process_backlog+0x101/0x620
[ 3952.786838][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3952.786838][   T73]      net_rx_action+0x495/0xbe0
[ 3952.786838][   T73]      __do_softirq+0x1b5/0x7f6
[ 3952.786838][   T73] 
[ 3952.788715][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3952.788715][   T73]      netdev_get_by_index+0x5e/0x80
[ 3952.788715][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3952.788715][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3952.788715][   T73]      ip6_route_add+0x1c/0x140
[ 3952.788715][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3952.788715][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3952.788715][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3952.788715][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3952.788715][   T73]      netlink_rcv_skb+0x130/0x360
[ 3952.788715][   T73]      netlink_unicast+0x449/0x710
[ 3952.788715][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3952.788715][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3952.788715][   T73]      ___sys_sendmsg+0xee/0x170
[ 3952.788715][   T73]      __sys_sendmsg+0xcd/0x170
[ 3952.788715][   T73]      do_syscall_64+0xc6/0x1e0
[ 3952.788715][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3952.788715][   T73] 
[ 3952.790959][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3952.790959][   T73]      netdev_get_by_index+0x5e/0x80
[ 3952.790959][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3952.790959][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3952.790959][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3952.790959][   T73]      ipv6_add_addr+0x411/0x2000
[ 3952.790959][   T73]      inet6_addr_add+0x30e/0xa40
[ 3952.790959][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3952.790959][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3952.790959][   T73]      netlink_rcv_skb+0x130/0x360
[ 3952.790959][   T73]      netlink_unicast+0x449/0x710
[ 3952.790959][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3952.790959][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3952.790959][   T73]      ___sys_sendmsg+0xee/0x170
[ 3952.790959][   T73]      __sys_sendmsg+0xcd/0x170
[ 3952.790959][   T73]      do_syscall_64+0xc6/0x1e0
[ 3952.790959][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3952.790959][   T73] 
[ 3952.793140][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3952.793140][   T73]      netdev_get_by_index+0x5e/0x80
[ 3952.793140][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3952.793140][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3952.793140][   T73]      ip6_route_add+0x1c/0x140
[ 3952.793140][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3952.793140][   T73]      addrconf_add_dev+0xe2/0x170
[ 3952.793140][   T73]      inet6_addr_add+0x12f/0xa40
[ 3952.793140][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3952.793140][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3952.793140][   T73]      netlink_rcv_skb+0x130/0x360
[ 3952.793140][   T73]      netlink_unicast+0x449/0x710
[ 3952.793140][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3952.793140][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3952.793140][   T73]      ___sys_sendmsg+0xee/0x170
[ 3952.793140][   T73]      __sys_sendmsg+0xcd/0x170
[ 3952.793140][   T73]      do_syscall_64+0xc6/0x1e0
[ 3952.793140][   T73] 
[ 3952.795333][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3952.795333][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3952.795333][   T73]      ipv6_find_idev+0x102/0x170
[ 3952.795333][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3952.795333][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3952.795333][   T73]      netlink_rcv_skb+0x130/0x360
[ 3952.795333][   T73]      netlink_unicast+0x449/0x710
[ 3952.795333][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3952.795333][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3952.795333][   T73]      ___sys_sendmsg+0xee/0x170
[ 3952.795333][   T73]      __sys_sendmsg+0xcd/0x170
[ 3952.795333][   T73]      do_syscall_64+0xc6/0x1e0
[ 3952.795333][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3952.795333][   T73] 
[ 3952.797134][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3952.797134][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3952.797134][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3952.797134][   T73]      ipv6_find_idev+0x102/0x170
[ 3952.797134][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3952.797134][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3952.797134][   T73]      netlink_rcv_skb+0x130/0x360
[ 3952.797134][   T73]      netlink_unicast+0x449/0x710
[ 3952.797134][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3952.797134][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3952.797134][   T73]      ___sys_sendmsg+0xee/0x170
[ 3952.797134][   T73]      __sys_sendmsg+0xcd/0x170
[ 3952.797134][   T73]      do_syscall_64+0xc6/0x1e0
[ 3952.797134][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3952.797134][   T73] 
[ 3952.799001][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3952.799346][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3952.799346][   T73]      netdev_get_by_index+0x5e/0x80
[ 3952.799346][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3952.799346][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3952.799346][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3952.799346][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3952.799346][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3952.799346][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3952.799346][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3952.799346][   T73]      addrconf_dad_begin+0x310/0x670
[ 3952.799346][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3952.799346][   T73]      process_one_work+0x84d/0x18a0
[ 3952.799346][   T73]      worker_thread+0x587/0xd30
[ 3952.799346][   T73]      kthread+0x28a/0x350
[ 3952.799346][   T73]      ret_from_fork+0x31/0x70
[ 3952.799346][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3952.799346][   T73] 
[ 3952.801368][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3952.801368][   T73]      netdev_get_by_index+0x5e/0x80
[ 3952.801368][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3952.801368][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3952.801368][   T73]      ip6_route_add+0x1c/0x140
[ 3952.801368][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3952.801368][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3952.801368][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3952.801368][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3952.801368][   T73]      netlink_rcv_skb+0x130/0x360
[ 3952.801368][   T73]      netlink_unicast+0x449/0x710
[ 3952.801368][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3952.801368][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3952.801368][   T73]      ___sys_sendmsg+0xee/0x170
[ 3952.801368][   T73]      __sys_sendmsg+0xcd/0x170
[ 3952.801368][   T73]      do_syscall_64+0xc6/0x1e0
[ 3952.801368][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3952.801368][   T73] 
[ 3952.803591][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3952.803591][   T73]      netdev_get_by_index+0x5e/0x80
[ 3952.803591][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3952.803591][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3952.803591][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3952.803591][   T73]      ipv6_add_addr+0x411/0x2000
[ 3952.803591][   T73]      inet6_addr_add+0x30e/0xa40
[ 3952.803591][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3952.803591][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3952.803591][   T73]      netlink_rcv_skb+0x130/0x360
[ 3952.803591][   T73]      netlink_unicast+0x449/0x710
[ 3952.803591][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3952.803591][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3952.803591][   T73]      ___sys_sendmsg+0xee/0x170
[ 3952.803591][   T73]      __sys_sendmsg+0xcd/0x170
[ 3952.803591][   T73]      do_syscall_64+0xc6/0x1e0
[ 3952.803591][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3952.803591][   T73] 
[ 3952.806357][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3952.806357][   T73]      netdev_get_by_index+0x5e/0x80
[ 3952.806357][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3952.806357][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3952.806357][   T73]      ip6_route_add+0x1c/0x140
[ 3952.806357][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3952.806357][   T73]      addrconf_add_dev+0xe2/0x170
[ 3952.806357][   T73]      inet6_addr_add+0x12f/0xa40
[ 3952.806357][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3952.806357][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3952.806357][   T73]      netlink_rcv_skb+0x130/0x360
[ 3952.806357][   T73]      netlink_unicast+0x449/0x710
[ 3952.806357][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3952.806357][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3952.806357][   T73]      ___sys_sendmsg+0xee/0x170
[ 3952.806357][   T73]      __sys_sendmsg+0xcd/0x170
[ 3952.806357][   T73]      do_syscall_64+0xc6/0x1e0
[ 3952.806357][   T73] 
[ 3952.808624][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3952.808624][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3952.808624][   T73]      ipv6_find_idev+0x102/0x170
[ 3952.808624][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3952.808624][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3952.808624][   T73]      netlink_rcv_skb+0x130/0x360
[ 3952.808624][   T73]      netlink_unicast+0x449/0x710
[ 3952.808624][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3952.808624][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3952.808624][   T73]      ___sys_sendmsg+0xee/0x170
[ 3952.808624][   T73]      __sys_sendmsg+0xcd/0x170
[ 3952.808624][   T73]      do_syscall_64+0xc6/0x1e0
[ 3952.808624][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3952.808624][   T73] 
[ 3952.810336][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3952.810336][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3952.810336][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3952.810336][   T73]      ipv6_find_idev+0x102/0x170
[ 3952.810336][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3952.810336][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3952.810336][   T73]      netlink_rcv_skb+0x130/0x360
[ 3952.810336][   T73]      netlink_unicast+0x449/0x710
[ 3952.810336][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3952.810336][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3952.810336][   T73]      ___sys_sendmsg+0xee/0x170
[ 3952.810336][   T73]      __sys_sendmsg+0xcd/0x170
[ 3952.810336][   T73]      do_syscall_64+0xc6/0x1e0
[ 3952.810336][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3952.810336][   T73] 
[ 3962.895739][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3962.896189][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3962.896189][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3962.896189][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3962.896189][   T73]      fib6_nh_init+0xa22/0x1580
[ 3962.896189][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3962.896189][   T73]      ip6_route_add+0x1c/0x140
[ 3962.896189][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3962.896189][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3962.896189][   T73]      netlink_rcv_skb+0x130/0x360
[ 3962.896189][   T73]      netlink_unicast+0x449/0x710
[ 3962.896189][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3962.896189][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3962.896189][   T73]      ___sys_sendmsg+0xee/0x170
[ 3962.896189][   T73]      __sys_sendmsg+0xcd/0x170
[ 3962.896189][   T73]      do_syscall_64+0xc6/0x1e0
[ 3962.896189][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3962.896189][   T73] 
[ 3962.898108][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3962.898108][   T73]      dst_init+0x84/0x4a0
[ 3962.898108][   T73]      dst_alloc+0x97/0x150
[ 3962.898108][   T73]      ip6_dst_alloc+0x23/0x90
[ 3962.898108][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3962.898108][   T73]      ip6_pol_route+0x56f/0x840
[ 3962.898108][   T73]      fib6_rule_lookup+0x456/0x630
[ 3962.898108][   T73]      ip6_route_input+0x59c/0xa50
[ 3962.898108][   T73]      ipv6_rcv+0x397/0x810
[ 3962.898108][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3962.898108][   T73]      process_backlog+0x101/0x620
[ 3962.898108][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3962.898108][   T73]      net_rx_action+0x495/0xbe0
[ 3962.898108][   T73]      __do_softirq+0x1b5/0x7f6
[ 3962.898108][   T73] 
[ 3962.899759][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3962.899759][   T73]      netdev_get_by_index+0x5e/0x80
[ 3962.899759][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3962.899759][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3962.899759][   T73]      ip6_route_add+0x1c/0x140
[ 3962.899759][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3962.899759][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3962.899759][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3962.899759][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3962.899759][   T73]      netlink_rcv_skb+0x130/0x360
[ 3962.899759][   T73]      netlink_unicast+0x449/0x710
[ 3962.899759][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3962.899759][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3962.899759][   T73]      ___sys_sendmsg+0xee/0x170
[ 3962.899759][   T73]      __sys_sendmsg+0xcd/0x170
[ 3962.899759][   T73]      do_syscall_64+0xc6/0x1e0
[ 3962.899759][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3962.899759][   T73] 
[ 3962.901827][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3962.901827][   T73]      netdev_get_by_index+0x5e/0x80
[ 3962.901827][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3962.901827][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3962.901827][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3962.901827][   T73]      ipv6_add_addr+0x411/0x2000
[ 3962.901827][   T73]      inet6_addr_add+0x30e/0xa40
[ 3962.901827][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3962.901827][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3962.901827][   T73]      netlink_rcv_skb+0x130/0x360
[ 3962.901827][   T73]      netlink_unicast+0x449/0x710
[ 3962.901827][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3962.901827][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3962.901827][   T73]      ___sys_sendmsg+0xee/0x170
[ 3962.901827][   T73]      __sys_sendmsg+0xcd/0x170
[ 3962.901827][   T73]      do_syscall_64+0xc6/0x1e0
[ 3962.901827][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3962.901827][   T73] 
[ 3962.903947][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3962.903947][   T73]      netdev_get_by_index+0x5e/0x80
[ 3962.903947][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3962.903947][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3962.903947][   T73]      ip6_route_add+0x1c/0x140
[ 3962.903947][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3962.903947][   T73]      addrconf_add_dev+0xe2/0x170
[ 3962.903947][   T73]      inet6_addr_add+0x12f/0xa40
[ 3962.903947][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3962.903947][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3962.903947][   T73]      netlink_rcv_skb+0x130/0x360
[ 3962.903947][   T73]      netlink_unicast+0x449/0x710
[ 3962.903947][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3962.903947][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3962.903947][   T73]      ___sys_sendmsg+0xee/0x170
[ 3962.903947][   T73]      __sys_sendmsg+0xcd/0x170
[ 3962.903947][   T73]      do_syscall_64+0xc6/0x1e0
[ 3962.903947][   T73] 
[ 3962.906004][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3962.906004][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3962.906004][   T73]      ipv6_find_idev+0x102/0x170
[ 3962.906004][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3962.906004][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3962.906004][   T73]      netlink_rcv_skb+0x130/0x360
[ 3962.906004][   T73]      netlink_unicast+0x449/0x710
[ 3962.906004][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3962.906004][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3962.906004][   T73]      ___sys_sendmsg+0xee/0x170
[ 3962.906004][   T73]      __sys_sendmsg+0xcd/0x170
[ 3962.906004][   T73]      do_syscall_64+0xc6/0x1e0
[ 3962.906004][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3962.906004][   T73] 
[ 3962.907552][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3962.907552][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3962.907552][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3962.907552][   T73]      ipv6_find_idev+0x102/0x170
[ 3962.907552][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3962.907552][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3962.907552][   T73]      netlink_rcv_skb+0x130/0x360
[ 3962.907552][   T73]      netlink_unicast+0x449/0x710
[ 3962.907552][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3962.907552][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3962.907552][   T73]      ___sys_sendmsg+0xee/0x170
[ 3962.907552][   T73]      __sys_sendmsg+0xcd/0x170
[ 3962.907552][   T73]      do_syscall_64+0xc6/0x1e0
[ 3962.907552][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3962.907552][   T73] 
[ 3962.909308][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3962.909604][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3962.909604][   T73]      netdev_get_by_index+0x5e/0x80
[ 3962.909604][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3962.909604][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3962.909604][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3962.909604][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3962.909604][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3962.909604][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3962.909604][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3962.909604][   T73]      addrconf_dad_begin+0x310/0x670
[ 3962.909604][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3962.909604][   T73]      process_one_work+0x84d/0x18a0
[ 3962.909604][   T73]      worker_thread+0x587/0xd30
[ 3962.909604][   T73]      kthread+0x28a/0x350
[ 3962.909604][   T73]      ret_from_fork+0x31/0x70
[ 3962.909604][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3962.909604][   T73] 
[ 3962.911644][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3962.911644][   T73]      netdev_get_by_index+0x5e/0x80
[ 3962.911644][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3962.911644][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3962.911644][   T73]      ip6_route_add+0x1c/0x140
[ 3962.911644][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3962.911644][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3962.911644][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3962.911644][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3962.911644][   T73]      netlink_rcv_skb+0x130/0x360
[ 3962.911644][   T73]      netlink_unicast+0x449/0x710
[ 3962.911644][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3962.911644][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3962.911644][   T73]      ___sys_sendmsg+0xee/0x170
[ 3962.911644][   T73]      __sys_sendmsg+0xcd/0x170
[ 3962.911644][   T73]      do_syscall_64+0xc6/0x1e0
[ 3962.911644][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3962.911644][   T73] 
[ 3962.913713][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3962.913713][   T73]      netdev_get_by_index+0x5e/0x80
[ 3962.913713][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3962.913713][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3962.913713][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3962.913713][   T73]      ipv6_add_addr+0x411/0x2000
[ 3962.913713][   T73]      inet6_addr_add+0x30e/0xa40
[ 3962.913713][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3962.913713][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3962.913713][   T73]      netlink_rcv_skb+0x130/0x360
[ 3962.913713][   T73]      netlink_unicast+0x449/0x710
[ 3962.913713][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3962.913713][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3962.913713][   T73]      ___sys_sendmsg+0xee/0x170
[ 3962.913713][   T73]      __sys_sendmsg+0xcd/0x170
[ 3962.913713][   T73]      do_syscall_64+0xc6/0x1e0
[ 3962.913713][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3962.913713][   T73] 
[ 3962.915794][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3962.915794][   T73]      netdev_get_by_index+0x5e/0x80
[ 3962.915794][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3962.915794][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3962.915794][   T73]      ip6_route_add+0x1c/0x140
[ 3962.915794][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3962.915794][   T73]      addrconf_add_dev+0xe2/0x170
[ 3962.915794][   T73]      inet6_addr_add+0x12f/0xa40
[ 3962.915794][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3962.915794][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3962.915794][   T73]      netlink_rcv_skb+0x130/0x360
[ 3962.915794][   T73]      netlink_unicast+0x449/0x710
[ 3962.915794][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3962.915794][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3962.915794][   T73]      ___sys_sendmsg+0xee/0x170
[ 3962.915794][   T73]      __sys_sendmsg+0xcd/0x170
[ 3962.915794][   T73]      do_syscall_64+0xc6/0x1e0
[ 3962.915794][   T73] 
[ 3962.917874][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3962.917874][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3962.917874][   T73]      ipv6_find_idev+0x102/0x170
[ 3962.917874][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3962.917874][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3962.917874][   T73]      netlink_rcv_skb+0x130/0x360
[ 3962.917874][   T73]      netlink_unicast+0x449/0x710
[ 3962.917874][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3962.917874][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3962.917874][   T73]      ___sys_sendmsg+0xee/0x170
[ 3962.917874][   T73]      __sys_sendmsg+0xcd/0x170
[ 3962.917874][   T73]      do_syscall_64+0xc6/0x1e0
[ 3962.917874][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3962.917874][   T73] 
[ 3962.919498][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3962.919498][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3962.919498][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3962.919498][   T73]      ipv6_find_idev+0x102/0x170
[ 3962.919498][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3962.919498][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3962.919498][   T73]      netlink_rcv_skb+0x130/0x360
[ 3962.919498][   T73]      netlink_unicast+0x449/0x710
[ 3962.919498][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3962.919498][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3962.919498][   T73]      ___sys_sendmsg+0xee/0x170
[ 3962.919498][   T73]      __sys_sendmsg+0xcd/0x170
[ 3962.919498][   T73]      do_syscall_64+0xc6/0x1e0
[ 3962.919498][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3962.919498][   T73] 
[ 3962.921211][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3962.921487][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3962.921487][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3962.921487][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3962.921487][   T73]      fib6_nh_init+0xa22/0x1580
[ 3962.921487][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3962.921487][   T73]      ip6_route_add+0x1c/0x140
[ 3962.921487][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3962.921487][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3962.921487][   T73]      netlink_rcv_skb+0x130/0x360
[ 3962.921487][   T73]      netlink_unicast+0x449/0x710
[ 3962.921487][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3962.921487][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3962.921487][   T73]      ___sys_sendmsg+0xee/0x170
[ 3962.921487][   T73]      __sys_sendmsg+0xcd/0x170
[ 3962.921487][   T73]      do_syscall_64+0xc6/0x1e0
[ 3962.921487][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3962.921487][   T73] 
[ 3962.923450][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3962.923450][   T73]      dst_init+0x84/0x4a0
[ 3962.923450][   T73]      dst_alloc+0x97/0x150
[ 3962.923450][   T73]      ip6_dst_alloc+0x23/0x90
[ 3962.923450][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3962.923450][   T73]      ip6_pol_route+0x56f/0x840
[ 3962.923450][   T73]      fib6_rule_lookup+0x456/0x630
[ 3962.923450][   T73]      ip6_route_input+0x59c/0xa50
[ 3962.923450][   T73]      ipv6_rcv+0x397/0x810
[ 3962.923450][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3962.923450][   T73]      process_backlog+0x101/0x620
[ 3962.923450][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3962.923450][   T73]      net_rx_action+0x495/0xbe0
[ 3962.923450][   T73]      __do_softirq+0x1b5/0x7f6
[ 3962.923450][   T73] 
[ 3962.925207][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3962.925207][   T73]      netdev_get_by_index+0x5e/0x80
[ 3962.925207][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3962.925207][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3962.925207][   T73]      ip6_route_add+0x1c/0x140
[ 3962.925207][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3962.925207][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3962.925207][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3962.925207][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3962.925207][   T73]      netlink_rcv_skb+0x130/0x360
[ 3962.925207][   T73]      netlink_unicast+0x449/0x710
[ 3962.925207][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3962.925207][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3962.925207][   T73]      ___sys_sendmsg+0xee/0x170
[ 3962.925207][   T73]      __sys_sendmsg+0xcd/0x170
[ 3962.925207][   T73]      do_syscall_64+0xc6/0x1e0
[ 3962.925207][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3962.925207][   T73] 
[ 3962.927389][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3962.927389][   T73]      netdev_get_by_index+0x5e/0x80
[ 3962.927389][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3962.927389][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3962.927389][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3962.927389][   T73]      ipv6_add_addr+0x411/0x2000
[ 3962.927389][   T73]      inet6_addr_add+0x30e/0xa40
[ 3962.927389][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3962.927389][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3962.927389][   T73]      netlink_rcv_skb+0x130/0x360
[ 3962.927389][   T73]      netlink_unicast+0x449/0x710
[ 3962.927389][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3962.927389][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3962.927389][   T73]      ___sys_sendmsg+0xee/0x170
[ 3962.927389][   T73]      __sys_sendmsg+0xcd/0x170
[ 3962.927389][   T73]      do_syscall_64+0xc6/0x1e0
[ 3962.927389][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3962.927389][   T73] 
[ 3962.929543][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3962.929543][   T73]      netdev_get_by_index+0x5e/0x80
[ 3962.929543][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3962.929543][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3962.929543][   T73]      ip6_route_add+0x1c/0x140
[ 3962.929543][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3962.929543][   T73]      addrconf_add_dev+0xe2/0x170
[ 3962.929543][   T73]      inet6_addr_add+0x12f/0xa40
[ 3962.929543][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3962.929543][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3962.929543][   T73]      netlink_rcv_skb+0x130/0x360
[ 3962.929543][   T73]      netlink_unicast+0x449/0x710
[ 3962.929543][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3962.929543][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3962.929543][   T73]      ___sys_sendmsg+0xee/0x170
[ 3962.929543][   T73]      __sys_sendmsg+0xcd/0x170
[ 3962.929543][   T73]      do_syscall_64+0xc6/0x1e0
[ 3962.929543][   T73] 
[ 3962.931672][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3962.931672][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3962.931672][   T73]      ipv6_find_idev+0x102/0x170
[ 3962.931672][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3962.931672][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3962.931672][   T73]      netlink_rcv_skb+0x130/0x360
[ 3962.931672][   T73]      netlink_unicast+0x449/0x710
[ 3962.931672][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3962.931672][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3962.931672][   T73]      ___sys_sendmsg+0xee/0x170
[ 3962.931672][   T73]      __sys_sendmsg+0xcd/0x170
[ 3962.931672][   T73]      do_syscall_64+0xc6/0x1e0
[ 3962.931672][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3962.931672][   T73] 
[ 3962.933410][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3962.933410][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3962.933410][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3962.933410][   T73]      ipv6_find_idev+0x102/0x170
[ 3962.933410][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3962.933410][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3962.933410][   T73]      netlink_rcv_skb+0x130/0x360
[ 3962.933410][   T73]      netlink_unicast+0x449/0x710
[ 3962.933410][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3962.933410][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3962.933410][   T73]      ___sys_sendmsg+0xee/0x170
[ 3962.933410][   T73]      __sys_sendmsg+0xcd/0x170
[ 3962.933410][   T73]      do_syscall_64+0xc6/0x1e0
[ 3962.933410][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3962.933410][   T73] 
[ 3962.935216][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3962.935516][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3962.935516][   T73]      netdev_get_by_index+0x5e/0x80
[ 3962.935516][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3962.935516][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3962.935516][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3962.935516][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3962.935516][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3962.935516][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3962.935516][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3962.935516][   T73]      addrconf_dad_begin+0x310/0x670
[ 3962.935516][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3962.935516][   T73]      process_one_work+0x84d/0x18a0
[ 3962.935516][   T73]      worker_thread+0x587/0xd30
[ 3962.935516][   T73]      kthread+0x28a/0x350
[ 3962.935516][   T73]      ret_from_fork+0x31/0x70
[ 3962.935516][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3962.935516][   T73] 
[ 3962.937593][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3962.937593][   T73]      netdev_get_by_index+0x5e/0x80
[ 3962.937593][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3962.937593][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3962.937593][   T73]      ip6_route_add+0x1c/0x140
[ 3962.937593][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3962.937593][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3962.937593][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3962.937593][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3962.937593][   T73]      netlink_rcv_skb+0x130/0x360
[ 3962.937593][   T73]      netlink_unicast+0x449/0x710
[ 3962.937593][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3962.937593][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3962.937593][   T73]      ___sys_sendmsg+0xee/0x170
[ 3962.937593][   T73]      __sys_sendmsg+0xcd/0x170
[ 3962.937593][   T73]      do_syscall_64+0xc6/0x1e0
[ 3962.937593][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3962.937593][   T73] 
[ 3962.939754][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3962.939754][   T73]      netdev_get_by_index+0x5e/0x80
[ 3962.939754][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3962.939754][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3962.939754][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3962.939754][   T73]      ipv6_add_addr+0x411/0x2000
[ 3962.939754][   T73]      inet6_addr_add+0x30e/0xa40
[ 3962.939754][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3962.939754][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3962.939754][   T73]      netlink_rcv_skb+0x130/0x360
[ 3962.939754][   T73]      netlink_unicast+0x449/0x710
[ 3962.939754][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3962.939754][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3962.939754][   T73]      ___sys_sendmsg+0xee/0x170
[ 3962.939754][   T73]      __sys_sendmsg+0xcd/0x170
[ 3962.939754][   T73]      do_syscall_64+0xc6/0x1e0
[ 3962.939754][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3962.939754][   T73] 
[ 3962.941988][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3962.941988][   T73]      netdev_get_by_index+0x5e/0x80
[ 3962.941988][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3962.941988][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3962.941988][   T73]      ip6_route_add+0x1c/0x140
[ 3962.941988][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3962.941988][   T73]      addrconf_add_dev+0xe2/0x170
[ 3962.941988][   T73]      inet6_addr_add+0x12f/0xa40
[ 3962.941988][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3962.941988][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3962.941988][   T73]      netlink_rcv_skb+0x130/0x360
[ 3962.941988][   T73]      netlink_unicast+0x449/0x710
[ 3962.941988][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3962.941988][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3962.941988][   T73]      ___sys_sendmsg+0xee/0x170
[ 3962.941988][   T73]      __sys_sendmsg+0xcd/0x170
[ 3962.941988][   T73]      do_syscall_64+0xc6/0x1e0
[ 3962.941988][   T73] 
[ 3962.944034][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3962.944034][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3962.944034][   T73]      ipv6_find_idev+0x102/0x170
[ 3962.944034][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3962.944034][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3962.944034][   T73]      netlink_rcv_skb+0x130/0x360
[ 3962.944034][   T73]      netlink_unicast+0x449/0x710
[ 3962.944034][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3962.944034][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3962.944034][   T73]      ___sys_sendmsg+0xee/0x170
[ 3962.944034][   T73]      __sys_sendmsg+0xcd/0x170
[ 3962.944034][   T73]      do_syscall_64+0xc6/0x1e0
[ 3962.944034][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3962.944034][   T73] 
[ 3962.945639][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3962.945639][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3962.945639][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3962.945639][   T73]      ipv6_find_idev+0x102/0x170
[ 3962.945639][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3962.945639][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3962.945639][   T73]      netlink_rcv_skb+0x130/0x360
[ 3962.945639][   T73]      netlink_unicast+0x449/0x710
[ 3962.945639][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3962.945639][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3962.945639][   T73]      ___sys_sendmsg+0xee/0x170
[ 3962.945639][   T73]      __sys_sendmsg+0xcd/0x170
[ 3962.945639][   T73]      do_syscall_64+0xc6/0x1e0
[ 3962.945639][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3962.945639][   T73] 
[ 3973.055777][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3973.056277][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3973.056277][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3973.056277][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3973.056277][   T73]      fib6_nh_init+0xa22/0x1580
[ 3973.056277][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3973.056277][   T73]      ip6_route_add+0x1c/0x140
[ 3973.056277][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3973.056277][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3973.056277][   T73]      netlink_rcv_skb+0x130/0x360
[ 3973.056277][   T73]      netlink_unicast+0x449/0x710
[ 3973.056277][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3973.056277][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3973.056277][   T73]      ___sys_sendmsg+0xee/0x170
[ 3973.056277][   T73]      __sys_sendmsg+0xcd/0x170
[ 3973.056277][   T73]      do_syscall_64+0xc6/0x1e0
[ 3973.056277][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3973.056277][   T73] 
[ 3973.058172][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3973.058172][   T73]      dst_init+0x84/0x4a0
[ 3973.058172][   T73]      dst_alloc+0x97/0x150
[ 3973.058172][   T73]      ip6_dst_alloc+0x23/0x90
[ 3973.058172][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3973.058172][   T73]      ip6_pol_route+0x56f/0x840
[ 3973.058172][   T73]      fib6_rule_lookup+0x456/0x630
[ 3973.058172][   T73]      ip6_route_input+0x59c/0xa50
[ 3973.058172][   T73]      ipv6_rcv+0x397/0x810
[ 3973.058172][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3973.058172][   T73]      process_backlog+0x101/0x620
[ 3973.058172][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3973.058172][   T73]      net_rx_action+0x495/0xbe0
[ 3973.058172][   T73]      __do_softirq+0x1b5/0x7f6
[ 3973.058172][   T73] 
[ 3973.059825][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3973.059825][   T73]      netdev_get_by_index+0x5e/0x80
[ 3973.059825][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3973.059825][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3973.059825][   T73]      ip6_route_add+0x1c/0x140
[ 3973.059825][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3973.059825][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3973.059825][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3973.059825][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3973.059825][   T73]      netlink_rcv_skb+0x130/0x360
[ 3973.059825][   T73]      netlink_unicast+0x449/0x710
[ 3973.059825][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3973.059825][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3973.059825][   T73]      ___sys_sendmsg+0xee/0x170
[ 3973.059825][   T73]      __sys_sendmsg+0xcd/0x170
[ 3973.059825][   T73]      do_syscall_64+0xc6/0x1e0
[ 3973.059825][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3973.059825][   T73] 
[ 3973.061825][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3973.061825][   T73]      netdev_get_by_index+0x5e/0x80
[ 3973.061825][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3973.061825][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3973.061825][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3973.061825][   T73]      ipv6_add_addr+0x411/0x2000
[ 3973.061825][   T73]      inet6_addr_add+0x30e/0xa40
[ 3973.061825][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3973.061825][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3973.061825][   T73]      netlink_rcv_skb+0x130/0x360
[ 3973.061825][   T73]      netlink_unicast+0x449/0x710
[ 3973.061825][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3973.061825][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3973.061825][   T73]      ___sys_sendmsg+0xee/0x170
[ 3973.061825][   T73]      __sys_sendmsg+0xcd/0x170
[ 3973.061825][   T73]      do_syscall_64+0xc6/0x1e0
[ 3973.061825][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3973.061825][   T73] 
[ 3973.063814][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3973.063814][   T73]      netdev_get_by_index+0x5e/0x80
[ 3973.063814][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3973.063814][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3973.063814][   T73]      ip6_route_add+0x1c/0x140
[ 3973.063814][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3973.063814][   T73]      addrconf_add_dev+0xe2/0x170
[ 3973.063814][   T73]      inet6_addr_add+0x12f/0xa40
[ 3973.063814][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3973.063814][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3973.063814][   T73]      netlink_rcv_skb+0x130/0x360
[ 3973.063814][   T73]      netlink_unicast+0x449/0x710
[ 3973.063814][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3973.063814][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3973.063814][   T73]      ___sys_sendmsg+0xee/0x170
[ 3973.063814][   T73]      __sys_sendmsg+0xcd/0x170
[ 3973.063814][   T73]      do_syscall_64+0xc6/0x1e0
[ 3973.063814][   T73] 
[ 3973.065776][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3973.065776][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3973.065776][   T73]      ipv6_find_idev+0x102/0x170
[ 3973.065776][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3973.065776][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3973.065776][   T73]      netlink_rcv_skb+0x130/0x360
[ 3973.065776][   T73]      netlink_unicast+0x449/0x710
[ 3973.065776][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3973.065776][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3973.065776][   T73]      ___sys_sendmsg+0xee/0x170
[ 3973.065776][   T73]      __sys_sendmsg+0xcd/0x170
[ 3973.065776][   T73]      do_syscall_64+0xc6/0x1e0
[ 3973.065776][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3973.065776][   T73] 
[ 3973.067335][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3973.067335][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3973.067335][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3973.067335][   T73]      ipv6_find_idev+0x102/0x170
[ 3973.067335][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3973.067335][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3973.067335][   T73]      netlink_rcv_skb+0x130/0x360
[ 3973.067335][   T73]      netlink_unicast+0x449/0x710
[ 3973.067335][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3973.067335][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3973.067335][   T73]      ___sys_sendmsg+0xee/0x170
[ 3973.067335][   T73]      __sys_sendmsg+0xcd/0x170
[ 3973.067335][   T73]      do_syscall_64+0xc6/0x1e0
[ 3973.067335][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3973.067335][   T73] 
[ 3973.069039][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3973.069322][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3973.069322][   T73]      netdev_get_by_index+0x5e/0x80
[ 3973.069322][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3973.069322][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3973.069322][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3973.069322][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3973.069322][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3973.069322][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3973.069322][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3973.069322][   T73]      addrconf_dad_begin+0x310/0x670
[ 3973.069322][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3973.069322][   T73]      process_one_work+0x84d/0x18a0
[ 3973.069322][   T73]      worker_thread+0x587/0xd30
[ 3973.069322][   T73]      kthread+0x28a/0x350
[ 3973.069322][   T73]      ret_from_fork+0x31/0x70
[ 3973.069322][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3973.069322][   T73] 
[ 3973.071221][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3973.071221][   T73]      netdev_get_by_index+0x5e/0x80
[ 3973.071221][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3973.071221][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3973.071221][   T73]      ip6_route_add+0x1c/0x140
[ 3973.071221][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3973.071221][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3973.071221][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3973.071221][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3973.071221][   T73]      netlink_rcv_skb+0x130/0x360
[ 3973.071221][   T73]      netlink_unicast+0x449/0x710
[ 3973.071221][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3973.071221][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3973.071221][   T73]      ___sys_sendmsg+0xee/0x170
[ 3973.071221][   T73]      __sys_sendmsg+0xcd/0x170
[ 3973.071221][   T73]      do_syscall_64+0xc6/0x1e0
[ 3973.071221][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3973.071221][   T73] 
[ 3973.073241][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3973.073241][   T73]      netdev_get_by_index+0x5e/0x80
[ 3973.073241][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3973.073241][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3973.073241][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3973.073241][   T73]      ipv6_add_addr+0x411/0x2000
[ 3973.073241][   T73]      inet6_addr_add+0x30e/0xa40
[ 3973.073241][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3973.073241][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3973.073241][   T73]      netlink_rcv_skb+0x130/0x360
[ 3973.073241][   T73]      netlink_unicast+0x449/0x710
[ 3973.073241][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3973.073241][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3973.073241][   T73]      ___sys_sendmsg+0xee/0x170
[ 3973.073241][   T73]      __sys_sendmsg+0xcd/0x170
[ 3973.073241][   T73]      do_syscall_64+0xc6/0x1e0
[ 3973.073241][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3973.073241][   T73] 
[ 3973.075225][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3973.075225][   T73]      netdev_get_by_index+0x5e/0x80
[ 3973.075225][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3973.075225][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3973.075225][   T73]      ip6_route_add+0x1c/0x140
[ 3973.075225][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3973.075225][   T73]      addrconf_add_dev+0xe2/0x170
[ 3973.075225][   T73]      inet6_addr_add+0x12f/0xa40
[ 3973.075225][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3973.075225][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3973.075225][   T73]      netlink_rcv_skb+0x130/0x360
[ 3973.075225][   T73]      netlink_unicast+0x449/0x710
[ 3973.075225][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3973.075225][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3973.075225][   T73]      ___sys_sendmsg+0xee/0x170
[ 3973.075225][   T73]      __sys_sendmsg+0xcd/0x170
[ 3973.075225][   T73]      do_syscall_64+0xc6/0x1e0
[ 3973.075225][   T73] 
[ 3973.077196][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3973.077196][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3973.077196][   T73]      ipv6_find_idev+0x102/0x170
[ 3973.077196][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3973.077196][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3973.077196][   T73]      netlink_rcv_skb+0x130/0x360
[ 3973.077196][   T73]      netlink_unicast+0x449/0x710
[ 3973.077196][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3973.077196][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3973.077196][   T73]      ___sys_sendmsg+0xee/0x170
[ 3973.077196][   T73]      __sys_sendmsg+0xcd/0x170
[ 3973.077196][   T73]      do_syscall_64+0xc6/0x1e0
[ 3973.077196][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3973.077196][   T73] 
[ 3973.078739][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3973.078739][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3973.078739][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3973.078739][   T73]      ipv6_find_idev+0x102/0x170
[ 3973.078739][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3973.078739][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3973.078739][   T73]      netlink_rcv_skb+0x130/0x360
[ 3973.078739][   T73]      netlink_unicast+0x449/0x710
[ 3973.078739][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3973.078739][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3973.078739][   T73]      ___sys_sendmsg+0xee/0x170
[ 3973.078739][   T73]      __sys_sendmsg+0xcd/0x170
[ 3973.078739][   T73]      do_syscall_64+0xc6/0x1e0
[ 3973.078739][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3973.078739][   T73] 
[ 3973.080415][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3973.080682][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3973.080682][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3973.080682][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3973.080682][   T73]      fib6_nh_init+0xa22/0x1580
[ 3973.080682][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3973.080682][   T73]      ip6_route_add+0x1c/0x140
[ 3973.080682][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3973.080682][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3973.080682][   T73]      netlink_rcv_skb+0x130/0x360
[ 3973.080682][   T73]      netlink_unicast+0x449/0x710
[ 3973.080682][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3973.080682][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3973.080682][   T73]      ___sys_sendmsg+0xee/0x170
[ 3973.080682][   T73]      __sys_sendmsg+0xcd/0x170
[ 3973.080682][   T73]      do_syscall_64+0xc6/0x1e0
[ 3973.080682][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3973.080682][   T73] 
[ 3973.082756][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3973.082756][   T73]      dst_init+0x84/0x4a0
[ 3973.082756][   T73]      dst_alloc+0x97/0x150
[ 3973.082756][   T73]      ip6_dst_alloc+0x23/0x90
[ 3973.082756][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3973.082756][   T73]      ip6_pol_route+0x56f/0x840
[ 3973.082756][   T73]      fib6_rule_lookup+0x456/0x630
[ 3973.082756][   T73]      ip6_route_input+0x59c/0xa50
[ 3973.082756][   T73]      ipv6_rcv+0x397/0x810
[ 3973.082756][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3973.082756][   T73]      process_backlog+0x101/0x620
[ 3973.082756][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3973.082756][   T73]      net_rx_action+0x495/0xbe0
[ 3973.082756][   T73]      __do_softirq+0x1b5/0x7f6
[ 3973.082756][   T73] 
[ 3973.084636][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3973.084636][   T73]      netdev_get_by_index+0x5e/0x80
[ 3973.084636][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3973.084636][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3973.084636][   T73]      ip6_route_add+0x1c/0x140
[ 3973.084636][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3973.084636][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3973.084636][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3973.084636][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3973.084636][   T73]      netlink_rcv_skb+0x130/0x360
[ 3973.084636][   T73]      netlink_unicast+0x449/0x710
[ 3973.084636][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3973.084636][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3973.084636][   T73]      ___sys_sendmsg+0xee/0x170
[ 3973.084636][   T73]      __sys_sendmsg+0xcd/0x170
[ 3973.084636][   T73]      do_syscall_64+0xc6/0x1e0
[ 3973.084636][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3973.084636][   T73] 
[ 3973.086878][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3973.086878][   T73]      netdev_get_by_index+0x5e/0x80
[ 3973.086878][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3973.086878][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3973.086878][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3973.086878][   T73]      ipv6_add_addr+0x411/0x2000
[ 3973.086878][   T73]      inet6_addr_add+0x30e/0xa40
[ 3973.086878][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3973.086878][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3973.086878][   T73]      netlink_rcv_skb+0x130/0x360
[ 3973.086878][   T73]      netlink_unicast+0x449/0x710
[ 3973.086878][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3973.086878][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3973.086878][   T73]      ___sys_sendmsg+0xee/0x170
[ 3973.086878][   T73]      __sys_sendmsg+0xcd/0x170
[ 3973.086878][   T73]      do_syscall_64+0xc6/0x1e0
[ 3973.086878][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3973.086878][   T73] 
[ 3973.089117][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3973.089117][   T73]      netdev_get_by_index+0x5e/0x80
[ 3973.089117][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3973.089117][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3973.089117][   T73]      ip6_route_add+0x1c/0x140
[ 3973.089117][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3973.089117][   T73]      addrconf_add_dev+0xe2/0x170
[ 3973.089117][   T73]      inet6_addr_add+0x12f/0xa40
[ 3973.089117][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3973.089117][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3973.089117][   T73]      netlink_rcv_skb+0x130/0x360
[ 3973.089117][   T73]      netlink_unicast+0x449/0x710
[ 3973.089117][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3973.089117][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3973.089117][   T73]      ___sys_sendmsg+0xee/0x170
[ 3973.089117][   T73]      __sys_sendmsg+0xcd/0x170
[ 3973.089117][   T73]      do_syscall_64+0xc6/0x1e0
[ 3973.089117][   T73] 
[ 3973.091198][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3973.091198][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3973.091198][   T73]      ipv6_find_idev+0x102/0x170
[ 3973.091198][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3973.091198][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3973.091198][   T73]      netlink_rcv_skb+0x130/0x360
[ 3973.091198][   T73]      netlink_unicast+0x449/0x710
[ 3973.091198][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3973.091198][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3973.091198][   T73]      ___sys_sendmsg+0xee/0x170
[ 3973.091198][   T73]      __sys_sendmsg+0xcd/0x170
[ 3973.091198][   T73]      do_syscall_64+0xc6/0x1e0
[ 3973.091198][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3973.091198][   T73] 
[ 3973.092972][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3973.092972][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3973.092972][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3973.092972][   T73]      ipv6_find_idev+0x102/0x170
[ 3973.092972][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3973.092972][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3973.092972][   T73]      netlink_rcv_skb+0x130/0x360
[ 3973.092972][   T73]      netlink_unicast+0x449/0x710
[ 3973.092972][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3973.092972][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3973.092972][   T73]      ___sys_sendmsg+0xee/0x170
[ 3973.092972][   T73]      __sys_sendmsg+0xcd/0x170
[ 3973.092972][   T73]      do_syscall_64+0xc6/0x1e0
[ 3973.092972][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3973.092972][   T73] 
[ 3973.094892][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3973.095166][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3973.095166][   T73]      netdev_get_by_index+0x5e/0x80
[ 3973.095166][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3973.095166][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3973.095166][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3973.095166][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3973.095166][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3973.095166][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3973.095166][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3973.095166][   T73]      addrconf_dad_begin+0x310/0x670
[ 3973.095166][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3973.095166][   T73]      process_one_work+0x84d/0x18a0
[ 3973.095166][   T73]      worker_thread+0x587/0xd30
[ 3973.095166][   T73]      kthread+0x28a/0x350
[ 3973.095166][   T73]      ret_from_fork+0x31/0x70
[ 3973.095166][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3973.095166][   T73] 
[ 3973.097324][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3973.097324][   T73]      netdev_get_by_index+0x5e/0x80
[ 3973.097324][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3973.097324][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3973.097324][   T73]      ip6_route_add+0x1c/0x140
[ 3973.097324][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3973.097324][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3973.097324][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3973.097324][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3973.097324][   T73]      netlink_rcv_skb+0x130/0x360
[ 3973.097324][   T73]      netlink_unicast+0x449/0x710
[ 3973.097324][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3973.097324][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3973.097324][   T73]      ___sys_sendmsg+0xee/0x170
[ 3973.097324][   T73]      __sys_sendmsg+0xcd/0x170
[ 3973.097324][   T73]      do_syscall_64+0xc6/0x1e0
[ 3973.097324][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3973.097324][   T73] 
[ 3973.099495][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3973.099495][   T73]      netdev_get_by_index+0x5e/0x80
[ 3973.099495][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3973.099495][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3973.099495][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3973.099495][   T73]      ipv6_add_addr+0x411/0x2000
[ 3973.099495][   T73]      inet6_addr_add+0x30e/0xa40
[ 3973.099495][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3973.099495][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3973.099495][   T73]      netlink_rcv_skb+0x130/0x360
[ 3973.099495][   T73]      netlink_unicast+0x449/0x710
[ 3973.099495][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3973.099495][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3973.099495][   T73]      ___sys_sendmsg+0xee/0x170
[ 3973.099495][   T73]      __sys_sendmsg+0xcd/0x170
[ 3973.099495][   T73]      do_syscall_64+0xc6/0x1e0
[ 3973.099495][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3973.099495][   T73] 
[ 3973.101729][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3973.101729][   T73]      netdev_get_by_index+0x5e/0x80
[ 3973.101729][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3973.101729][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3973.101729][   T73]      ip6_route_add+0x1c/0x140
[ 3973.101729][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3973.101729][   T73]      addrconf_add_dev+0xe2/0x170
[ 3973.101729][   T73]      inet6_addr_add+0x12f/0xa40
[ 3973.101729][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3973.101729][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3973.101729][   T73]      netlink_rcv_skb+0x130/0x360
[ 3973.101729][   T73]      netlink_unicast+0x449/0x710
[ 3973.101729][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3973.101729][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3973.101729][   T73]      ___sys_sendmsg+0xee/0x170
[ 3973.101729][   T73]      __sys_sendmsg+0xcd/0x170
[ 3973.101729][   T73]      do_syscall_64+0xc6/0x1e0
[ 3973.101729][   T73] 
[ 3973.104004][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3973.104004][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3973.104004][   T73]      ipv6_find_idev+0x102/0x170
[ 3973.104004][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3973.104004][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3973.104004][   T73]      netlink_rcv_skb+0x130/0x360
[ 3973.104004][   T73]      netlink_unicast+0x449/0x710
[ 3973.104004][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3973.104004][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3973.104004][   T73]      ___sys_sendmsg+0xee/0x170
[ 3973.104004][   T73]      __sys_sendmsg+0xcd/0x170
[ 3973.104004][   T73]      do_syscall_64+0xc6/0x1e0
[ 3973.104004][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3973.104004][   T73] 
[ 3973.105712][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3973.105712][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3973.105712][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3973.105712][   T73]      ipv6_find_idev+0x102/0x170
[ 3973.105712][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3973.105712][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3973.105712][   T73]      netlink_rcv_skb+0x130/0x360
[ 3973.105712][   T73]      netlink_unicast+0x449/0x710
[ 3973.105712][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3973.105712][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3973.105712][   T73]      ___sys_sendmsg+0xee/0x170
[ 3973.105712][   T73]      __sys_sendmsg+0xcd/0x170
[ 3973.105712][   T73]      do_syscall_64+0xc6/0x1e0
[ 3973.105712][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3973.105712][   T73] 
[ 3983.359818][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3983.360247][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3983.360247][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3983.360247][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3983.360247][   T73]      fib6_nh_init+0xa22/0x1580
[ 3983.360247][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3983.360247][   T73]      ip6_route_add+0x1c/0x140
[ 3983.360247][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3983.360247][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3983.360247][   T73]      netlink_rcv_skb+0x130/0x360
[ 3983.360247][   T73]      netlink_unicast+0x449/0x710
[ 3983.360247][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3983.360247][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3983.360247][   T73]      ___sys_sendmsg+0xee/0x170
[ 3983.360247][   T73]      __sys_sendmsg+0xcd/0x170
[ 3983.360247][   T73]      do_syscall_64+0xc6/0x1e0
[ 3983.360247][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3983.360247][   T73] 
[ 3983.362145][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3983.362145][   T73]      dst_init+0x84/0x4a0
[ 3983.362145][   T73]      dst_alloc+0x97/0x150
[ 3983.362145][   T73]      ip6_dst_alloc+0x23/0x90
[ 3983.362145][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3983.362145][   T73]      ip6_pol_route+0x56f/0x840
[ 3983.362145][   T73]      fib6_rule_lookup+0x456/0x630
[ 3983.362145][   T73]      ip6_route_input+0x59c/0xa50
[ 3983.362145][   T73]      ipv6_rcv+0x397/0x810
[ 3983.362145][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3983.362145][   T73]      process_backlog+0x101/0x620
[ 3983.362145][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3983.362145][   T73]      net_rx_action+0x495/0xbe0
[ 3983.362145][   T73]      __do_softirq+0x1b5/0x7f6
[ 3983.362145][   T73] 
[ 3983.363782][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3983.363782][   T73]      netdev_get_by_index+0x5e/0x80
[ 3983.363782][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3983.363782][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3983.363782][   T73]      ip6_route_add+0x1c/0x140
[ 3983.363782][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3983.363782][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3983.363782][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3983.363782][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3983.363782][   T73]      netlink_rcv_skb+0x130/0x360
[ 3983.363782][   T73]      netlink_unicast+0x449/0x710
[ 3983.363782][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3983.363782][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3983.363782][   T73]      ___sys_sendmsg+0xee/0x170
[ 3983.363782][   T73]      __sys_sendmsg+0xcd/0x170
[ 3983.363782][   T73]      do_syscall_64+0xc6/0x1e0
[ 3983.363782][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3983.363782][   T73] 
[ 3983.365783][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3983.365783][   T73]      netdev_get_by_index+0x5e/0x80
[ 3983.365783][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3983.365783][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3983.365783][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3983.365783][   T73]      ipv6_add_addr+0x411/0x2000
[ 3983.365783][   T73]      inet6_addr_add+0x30e/0xa40
[ 3983.365783][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3983.365783][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3983.365783][   T73]      netlink_rcv_skb+0x130/0x360
[ 3983.365783][   T73]      netlink_unicast+0x449/0x710
[ 3983.365783][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3983.365783][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3983.365783][   T73]      ___sys_sendmsg+0xee/0x170
[ 3983.365783][   T73]      __sys_sendmsg+0xcd/0x170
[ 3983.365783][   T73]      do_syscall_64+0xc6/0x1e0
[ 3983.365783][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3983.365783][   T73] 
[ 3983.367794][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3983.367794][   T73]      netdev_get_by_index+0x5e/0x80
[ 3983.367794][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3983.367794][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3983.367794][   T73]      ip6_route_add+0x1c/0x140
[ 3983.367794][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3983.367794][   T73]      addrconf_add_dev+0xe2/0x170
[ 3983.367794][   T73]      inet6_addr_add+0x12f/0xa40
[ 3983.367794][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3983.367794][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3983.367794][   T73]      netlink_rcv_skb+0x130/0x360
[ 3983.367794][   T73]      netlink_unicast+0x449/0x710
[ 3983.367794][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3983.367794][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3983.367794][   T73]      ___sys_sendmsg+0xee/0x170
[ 3983.367794][   T73]      __sys_sendmsg+0xcd/0x170
[ 3983.367794][   T73]      do_syscall_64+0xc6/0x1e0
[ 3983.367794][   T73] 
[ 3983.369752][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3983.369752][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3983.369752][   T73]      ipv6_find_idev+0x102/0x170
[ 3983.369752][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3983.369752][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3983.369752][   T73]      netlink_rcv_skb+0x130/0x360
[ 3983.369752][   T73]      netlink_unicast+0x449/0x710
[ 3983.369752][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3983.369752][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3983.369752][   T73]      ___sys_sendmsg+0xee/0x170
[ 3983.369752][   T73]      __sys_sendmsg+0xcd/0x170
[ 3983.369752][   T73]      do_syscall_64+0xc6/0x1e0
[ 3983.369752][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3983.369752][   T73] 
[ 3983.371286][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3983.371286][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3983.371286][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3983.371286][   T73]      ipv6_find_idev+0x102/0x170
[ 3983.371286][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3983.371286][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3983.371286][   T73]      netlink_rcv_skb+0x130/0x360
[ 3983.371286][   T73]      netlink_unicast+0x449/0x710
[ 3983.371286][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3983.371286][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3983.371286][   T73]      ___sys_sendmsg+0xee/0x170
[ 3983.371286][   T73]      __sys_sendmsg+0xcd/0x170
[ 3983.371286][   T73]      do_syscall_64+0xc6/0x1e0
[ 3983.371286][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3983.371286][   T73] 
[ 3983.372976][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3983.373259][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3983.373259][   T73]      netdev_get_by_index+0x5e/0x80
[ 3983.373259][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3983.373259][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3983.373259][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3983.373259][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3983.373259][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3983.373259][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3983.373259][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3983.373259][   T73]      addrconf_dad_begin+0x310/0x670
[ 3983.373259][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3983.373259][   T73]      process_one_work+0x84d/0x18a0
[ 3983.373259][   T73]      worker_thread+0x587/0xd30
[ 3983.373259][   T73]      kthread+0x28a/0x350
[ 3983.373259][   T73]      ret_from_fork+0x31/0x70
[ 3983.373259][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3983.373259][   T73] 
[ 3983.375158][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3983.375158][   T73]      netdev_get_by_index+0x5e/0x80
[ 3983.375158][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3983.375158][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3983.375158][   T73]      ip6_route_add+0x1c/0x140
[ 3983.375158][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3983.375158][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3983.375158][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3983.375158][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3983.375158][   T73]      netlink_rcv_skb+0x130/0x360
[ 3983.375158][   T73]      netlink_unicast+0x449/0x710
[ 3983.375158][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3983.375158][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3983.375158][   T73]      ___sys_sendmsg+0xee/0x170
[ 3983.375158][   T73]      __sys_sendmsg+0xcd/0x170
[ 3983.375158][   T73]      do_syscall_64+0xc6/0x1e0
[ 3983.375158][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3983.375158][   T73] 
[ 3983.377174][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3983.377174][   T73]      netdev_get_by_index+0x5e/0x80
[ 3983.377174][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3983.377174][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3983.377174][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3983.377174][   T73]      ipv6_add_addr+0x411/0x2000
[ 3983.377174][   T73]      inet6_addr_add+0x30e/0xa40
[ 3983.377174][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3983.377174][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3983.377174][   T73]      netlink_rcv_skb+0x130/0x360
[ 3983.377174][   T73]      netlink_unicast+0x449/0x710
[ 3983.377174][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3983.377174][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3983.377174][   T73]      ___sys_sendmsg+0xee/0x170
[ 3983.377174][   T73]      __sys_sendmsg+0xcd/0x170
[ 3983.377174][   T73]      do_syscall_64+0xc6/0x1e0
[ 3983.377174][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3983.377174][   T73] 
[ 3983.379312][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3983.379312][   T73]      netdev_get_by_index+0x5e/0x80
[ 3983.379312][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3983.379312][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3983.379312][   T73]      ip6_route_add+0x1c/0x140
[ 3983.379312][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3983.379312][   T73]      addrconf_add_dev+0xe2/0x170
[ 3983.379312][   T73]      inet6_addr_add+0x12f/0xa40
[ 3983.379312][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3983.379312][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3983.379312][   T73]      netlink_rcv_skb+0x130/0x360
[ 3983.379312][   T73]      netlink_unicast+0x449/0x710
[ 3983.379312][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3983.379312][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3983.379312][   T73]      ___sys_sendmsg+0xee/0x170
[ 3983.379312][   T73]      __sys_sendmsg+0xcd/0x170
[ 3983.379312][   T73]      do_syscall_64+0xc6/0x1e0
[ 3983.379312][   T73] 
[ 3983.381273][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3983.381273][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3983.381273][   T73]      ipv6_find_idev+0x102/0x170
[ 3983.381273][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3983.381273][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3983.381273][   T73]      netlink_rcv_skb+0x130/0x360
[ 3983.381273][   T73]      netlink_unicast+0x449/0x710
[ 3983.381273][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3983.381273][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3983.381273][   T73]      ___sys_sendmsg+0xee/0x170
[ 3983.381273][   T73]      __sys_sendmsg+0xcd/0x170
[ 3983.381273][   T73]      do_syscall_64+0xc6/0x1e0
[ 3983.381273][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3983.381273][   T73] 
[ 3983.382808][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3983.382808][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3983.382808][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3983.382808][   T73]      ipv6_find_idev+0x102/0x170
[ 3983.382808][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3983.382808][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3983.382808][   T73]      netlink_rcv_skb+0x130/0x360
[ 3983.382808][   T73]      netlink_unicast+0x449/0x710
[ 3983.382808][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3983.382808][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3983.382808][   T73]      ___sys_sendmsg+0xee/0x170
[ 3983.382808][   T73]      __sys_sendmsg+0xcd/0x170
[ 3983.382808][   T73]      do_syscall_64+0xc6/0x1e0
[ 3983.382808][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3983.382808][   T73] 
[ 3983.384488][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3983.384812][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3983.384812][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3983.384812][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3983.384812][   T73]      fib6_nh_init+0xa22/0x1580
[ 3983.384812][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3983.384812][   T73]      ip6_route_add+0x1c/0x140
[ 3983.384812][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3983.384812][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3983.384812][   T73]      netlink_rcv_skb+0x130/0x360
[ 3983.384812][   T73]      netlink_unicast+0x449/0x710
[ 3983.384812][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3983.384812][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3983.384812][   T73]      ___sys_sendmsg+0xee/0x170
[ 3983.384812][   T73]      __sys_sendmsg+0xcd/0x170
[ 3983.384812][   T73]      do_syscall_64+0xc6/0x1e0
[ 3983.384812][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3983.384812][   T73] 
[ 3983.386886][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3983.386886][   T73]      dst_init+0x84/0x4a0
[ 3983.386886][   T73]      dst_alloc+0x97/0x150
[ 3983.386886][   T73]      ip6_dst_alloc+0x23/0x90
[ 3983.386886][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3983.386886][   T73]      ip6_pol_route+0x56f/0x840
[ 3983.386886][   T73]      fib6_rule_lookup+0x456/0x630
[ 3983.386886][   T73]      ip6_route_input+0x59c/0xa50
[ 3983.386886][   T73]      ipv6_rcv+0x397/0x810
[ 3983.386886][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3983.386886][   T73]      process_backlog+0x101/0x620
[ 3983.386886][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3983.386886][   T73]      net_rx_action+0x495/0xbe0
[ 3983.386886][   T73]      __do_softirq+0x1b5/0x7f6
[ 3983.386886][   T73] 
[ 3983.388697][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3983.388697][   T73]      netdev_get_by_index+0x5e/0x80
[ 3983.388697][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3983.388697][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3983.388697][   T73]      ip6_route_add+0x1c/0x140
[ 3983.388697][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3983.388697][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3983.388697][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3983.388697][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3983.388697][   T73]      netlink_rcv_skb+0x130/0x360
[ 3983.388697][   T73]      netlink_unicast+0x449/0x710
[ 3983.388697][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3983.388697][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3983.388697][   T73]      ___sys_sendmsg+0xee/0x170
[ 3983.388697][   T73]      __sys_sendmsg+0xcd/0x170
[ 3983.388697][   T73]      do_syscall_64+0xc6/0x1e0
[ 3983.388697][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3983.388697][   T73] 
[ 3983.390934][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3983.390934][   T73]      netdev_get_by_index+0x5e/0x80
[ 3983.390934][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3983.390934][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3983.390934][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3983.390934][   T73]      ipv6_add_addr+0x411/0x2000
[ 3983.390934][   T73]      inet6_addr_add+0x30e/0xa40
[ 3983.390934][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3983.390934][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3983.390934][   T73]      netlink_rcv_skb+0x130/0x360
[ 3983.390934][   T73]      netlink_unicast+0x449/0x710
[ 3983.390934][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3983.390934][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3983.390934][   T73]      ___sys_sendmsg+0xee/0x170
[ 3983.390934][   T73]      __sys_sendmsg+0xcd/0x170
[ 3983.390934][   T73]      do_syscall_64+0xc6/0x1e0
[ 3983.390934][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3983.390934][   T73] 
[ 3983.393244][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3983.393244][   T73]      netdev_get_by_index+0x5e/0x80
[ 3983.393244][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3983.393244][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3983.393244][   T73]      ip6_route_add+0x1c/0x140
[ 3983.393244][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3983.393244][   T73]      addrconf_add_dev+0xe2/0x170
[ 3983.393244][   T73]      inet6_addr_add+0x12f/0xa40
[ 3983.393244][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3983.393244][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3983.393244][   T73]      netlink_rcv_skb+0x130/0x360
[ 3983.393244][   T73]      netlink_unicast+0x449/0x710
[ 3983.393244][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3983.393244][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3983.393244][   T73]      ___sys_sendmsg+0xee/0x170
[ 3983.393244][   T73]      __sys_sendmsg+0xcd/0x170
[ 3983.393244][   T73]      do_syscall_64+0xc6/0x1e0
[ 3983.393244][   T73] 
[ 3983.395386][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3983.395386][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3983.395386][   T73]      ipv6_find_idev+0x102/0x170
[ 3983.395386][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3983.395386][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3983.395386][   T73]      netlink_rcv_skb+0x130/0x360
[ 3983.395386][   T73]      netlink_unicast+0x449/0x710
[ 3983.395386][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3983.395386][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3983.395386][   T73]      ___sys_sendmsg+0xee/0x170
[ 3983.395386][   T73]      __sys_sendmsg+0xcd/0x170
[ 3983.395386][   T73]      do_syscall_64+0xc6/0x1e0
[ 3983.395386][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3983.395386][   T73] 
[ 3983.397108][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3983.397108][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3983.397108][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3983.397108][   T73]      ipv6_find_idev+0x102/0x170
[ 3983.397108][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3983.397108][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3983.397108][   T73]      netlink_rcv_skb+0x130/0x360
[ 3983.397108][   T73]      netlink_unicast+0x449/0x710
[ 3983.397108][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3983.397108][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3983.397108][   T73]      ___sys_sendmsg+0xee/0x170
[ 3983.397108][   T73]      __sys_sendmsg+0xcd/0x170
[ 3983.397108][   T73]      do_syscall_64+0xc6/0x1e0
[ 3983.397108][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3983.397108][   T73] 
[ 3983.399021][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3983.399298][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3983.399298][   T73]      netdev_get_by_index+0x5e/0x80
[ 3983.399298][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3983.399298][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3983.399298][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3983.399298][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3983.399298][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3983.399298][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3983.399298][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3983.399298][   T73]      addrconf_dad_begin+0x310/0x670
[ 3983.399298][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3983.399298][   T73]      process_one_work+0x84d/0x18a0
[ 3983.399298][   T73]      worker_thread+0x587/0xd30
[ 3983.399298][   T73]      kthread+0x28a/0x350
[ 3983.399298][   T73]      ret_from_fork+0x31/0x70
[ 3983.399298][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3983.399298][   T73] 
[ 3983.401451][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3983.401451][   T73]      netdev_get_by_index+0x5e/0x80
[ 3983.401451][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3983.401451][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3983.401451][   T73]      ip6_route_add+0x1c/0x140
[ 3983.401451][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3983.401451][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3983.401451][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3983.401451][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3983.401451][   T73]      netlink_rcv_skb+0x130/0x360
[ 3983.401451][   T73]      netlink_unicast+0x449/0x710
[ 3983.401451][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3983.401451][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3983.401451][   T73]      ___sys_sendmsg+0xee/0x170
[ 3983.401451][   T73]      __sys_sendmsg+0xcd/0x170
[ 3983.401451][   T73]      do_syscall_64+0xc6/0x1e0
[ 3983.401451][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3983.401451][   T73] 
[ 3983.403707][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3983.403707][   T73]      netdev_get_by_index+0x5e/0x80
[ 3983.403707][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3983.403707][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3983.403707][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3983.403707][   T73]      ipv6_add_addr+0x411/0x2000
[ 3983.403707][   T73]      inet6_addr_add+0x30e/0xa40
[ 3983.403707][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3983.403707][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3983.403707][   T73]      netlink_rcv_skb+0x130/0x360
[ 3983.403707][   T73]      netlink_unicast+0x449/0x710
[ 3983.403707][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3983.403707][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3983.403707][   T73]      ___sys_sendmsg+0xee/0x170
[ 3983.403707][   T73]      __sys_sendmsg+0xcd/0x170
[ 3983.403707][   T73]      do_syscall_64+0xc6/0x1e0
[ 3983.403707][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3983.403707][   T73] 
[ 3983.405954][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3983.405954][   T73]      netdev_get_by_index+0x5e/0x80
[ 3983.405954][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3983.405954][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3983.405954][   T73]      ip6_route_add+0x1c/0x140
[ 3983.405954][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3983.405954][   T73]      addrconf_add_dev+0xe2/0x170
[ 3983.405954][   T73]      inet6_addr_add+0x12f/0xa40
[ 3983.405954][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3983.405954][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3983.405954][   T73]      netlink_rcv_skb+0x130/0x360
[ 3983.405954][   T73]      netlink_unicast+0x449/0x710
[ 3983.405954][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3983.405954][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3983.405954][   T73]      ___sys_sendmsg+0xee/0x170
[ 3983.405954][   T73]      __sys_sendmsg+0xcd/0x170
[ 3983.405954][   T73]      do_syscall_64+0xc6/0x1e0
[ 3983.405954][   T73] 
[ 3983.408165][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3983.408165][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3983.408165][   T73]      ipv6_find_idev+0x102/0x170
[ 3983.408165][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3983.408165][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3983.408165][   T73]      netlink_rcv_skb+0x130/0x360
[ 3983.408165][   T73]      netlink_unicast+0x449/0x710
[ 3983.408165][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3983.408165][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3983.408165][   T73]      ___sys_sendmsg+0xee/0x170
[ 3983.408165][   T73]      __sys_sendmsg+0xcd/0x170
[ 3983.408165][   T73]      do_syscall_64+0xc6/0x1e0
[ 3983.408165][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3983.408165][   T73] 
[ 3983.410432][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3983.410432][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3983.410432][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3983.410432][   T73]      ipv6_find_idev+0x102/0x170
[ 3983.410432][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3983.410432][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3983.410432][   T73]      netlink_rcv_skb+0x130/0x360
[ 3983.410432][   T73]      netlink_unicast+0x449/0x710
[ 3983.410432][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3983.410432][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3983.410432][   T73]      ___sys_sendmsg+0xee/0x170
[ 3983.410432][   T73]      __sys_sendmsg+0xcd/0x170
[ 3983.410432][   T73]      do_syscall_64+0xc6/0x1e0
[ 3983.410432][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3983.410432][   T73] 
[ 3993.631774][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 3993.632274][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3993.632274][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3993.632274][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3993.632274][   T73]      fib6_nh_init+0xa22/0x1580
[ 3993.632274][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3993.632274][   T73]      ip6_route_add+0x1c/0x140
[ 3993.632274][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3993.632274][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3993.632274][   T73]      netlink_rcv_skb+0x130/0x360
[ 3993.632274][   T73]      netlink_unicast+0x449/0x710
[ 3993.632274][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3993.632274][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3993.632274][   T73]      ___sys_sendmsg+0xee/0x170
[ 3993.632274][   T73]      __sys_sendmsg+0xcd/0x170
[ 3993.632274][   T73]      do_syscall_64+0xc6/0x1e0
[ 3993.632274][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3993.632274][   T73] 
[ 3993.634238][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 3993.634238][   T73]      dst_init+0x84/0x4a0
[ 3993.634238][   T73]      dst_alloc+0x97/0x150
[ 3993.634238][   T73]      ip6_dst_alloc+0x23/0x90
[ 3993.634238][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3993.634238][   T73]      ip6_pol_route+0x56f/0x840
[ 3993.634238][   T73]      fib6_rule_lookup+0x456/0x630
[ 3993.634238][   T73]      ip6_route_input+0x59c/0xa50
[ 3993.634238][   T73]      ipv6_rcv+0x397/0x810
[ 3993.634238][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3993.634238][   T73]      process_backlog+0x101/0x620
[ 3993.634238][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3993.634238][   T73]      net_rx_action+0x495/0xbe0
[ 3993.634238][   T73]      __do_softirq+0x1b5/0x7f6
[ 3993.634238][   T73] 
[ 3993.636007][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3993.636007][   T73]      netdev_get_by_index+0x5e/0x80
[ 3993.636007][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3993.636007][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3993.636007][   T73]      ip6_route_add+0x1c/0x140
[ 3993.636007][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3993.636007][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3993.636007][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3993.636007][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3993.636007][   T73]      netlink_rcv_skb+0x130/0x360
[ 3993.636007][   T73]      netlink_unicast+0x449/0x710
[ 3993.636007][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3993.636007][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3993.636007][   T73]      ___sys_sendmsg+0xee/0x170
[ 3993.636007][   T73]      __sys_sendmsg+0xcd/0x170
[ 3993.636007][   T73]      do_syscall_64+0xc6/0x1e0
[ 3993.636007][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3993.636007][   T73] 
[ 3993.638095][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3993.638095][   T73]      netdev_get_by_index+0x5e/0x80
[ 3993.638095][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3993.638095][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3993.638095][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3993.638095][   T73]      ipv6_add_addr+0x411/0x2000
[ 3993.638095][   T73]      inet6_addr_add+0x30e/0xa40
[ 3993.638095][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3993.638095][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3993.638095][   T73]      netlink_rcv_skb+0x130/0x360
[ 3993.638095][   T73]      netlink_unicast+0x449/0x710
[ 3993.638095][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3993.638095][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3993.638095][   T73]      ___sys_sendmsg+0xee/0x170
[ 3993.638095][   T73]      __sys_sendmsg+0xcd/0x170
[ 3993.638095][   T73]      do_syscall_64+0xc6/0x1e0
[ 3993.638095][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3993.638095][   T73] 
[ 3993.640220][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3993.640220][   T73]      netdev_get_by_index+0x5e/0x80
[ 3993.640220][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3993.640220][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3993.640220][   T73]      ip6_route_add+0x1c/0x140
[ 3993.640220][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3993.640220][   T73]      addrconf_add_dev+0xe2/0x170
[ 3993.640220][   T73]      inet6_addr_add+0x12f/0xa40
[ 3993.640220][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3993.640220][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3993.640220][   T73]      netlink_rcv_skb+0x130/0x360
[ 3993.640220][   T73]      netlink_unicast+0x449/0x710
[ 3993.640220][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3993.640220][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3993.640220][   T73]      ___sys_sendmsg+0xee/0x170
[ 3993.640220][   T73]      __sys_sendmsg+0xcd/0x170
[ 3993.640220][   T73]      do_syscall_64+0xc6/0x1e0
[ 3993.640220][   T73] 
[ 3993.642286][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3993.642286][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3993.642286][   T73]      ipv6_find_idev+0x102/0x170
[ 3993.642286][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3993.642286][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3993.642286][   T73]      netlink_rcv_skb+0x130/0x360
[ 3993.642286][   T73]      netlink_unicast+0x449/0x710
[ 3993.642286][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3993.642286][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3993.642286][   T73]      ___sys_sendmsg+0xee/0x170
[ 3993.642286][   T73]      __sys_sendmsg+0xcd/0x170
[ 3993.642286][   T73]      do_syscall_64+0xc6/0x1e0
[ 3993.642286][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3993.642286][   T73] 
[ 3993.643869][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 3993.643869][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3993.643869][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3993.643869][   T73]      ipv6_find_idev+0x102/0x170
[ 3993.643869][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3993.643869][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3993.643869][   T73]      netlink_rcv_skb+0x130/0x360
[ 3993.643869][   T73]      netlink_unicast+0x449/0x710
[ 3993.643869][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3993.643869][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3993.643869][   T73]      ___sys_sendmsg+0xee/0x170
[ 3993.643869][   T73]      __sys_sendmsg+0xcd/0x170
[ 3993.643869][   T73]      do_syscall_64+0xc6/0x1e0
[ 3993.643869][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3993.643869][   T73] 
[ 3993.645668][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 3993.645982][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3993.645982][   T73]      netdev_get_by_index+0x5e/0x80
[ 3993.645982][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3993.645982][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3993.645982][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3993.645982][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3993.645982][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3993.645982][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3993.645982][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3993.645982][   T73]      addrconf_dad_begin+0x310/0x670
[ 3993.645982][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3993.645982][   T73]      process_one_work+0x84d/0x18a0
[ 3993.645982][   T73]      worker_thread+0x587/0xd30
[ 3993.645982][   T73]      kthread+0x28a/0x350
[ 3993.645982][   T73]      ret_from_fork+0x31/0x70
[ 3993.645982][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3993.645982][   T73] 
[ 3993.647982][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3993.647982][   T73]      netdev_get_by_index+0x5e/0x80
[ 3993.647982][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3993.647982][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3993.647982][   T73]      ip6_route_add+0x1c/0x140
[ 3993.647982][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3993.647982][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3993.647982][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3993.647982][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3993.647982][   T73]      netlink_rcv_skb+0x130/0x360
[ 3993.647982][   T73]      netlink_unicast+0x449/0x710
[ 3993.647982][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3993.647982][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3993.647982][   T73]      ___sys_sendmsg+0xee/0x170
[ 3993.647982][   T73]      __sys_sendmsg+0xcd/0x170
[ 3993.647982][   T73]      do_syscall_64+0xc6/0x1e0
[ 3993.647982][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3993.647982][   T73] 
[ 3993.649993][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3993.649993][   T73]      netdev_get_by_index+0x5e/0x80
[ 3993.649993][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3993.649993][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3993.649993][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3993.649993][   T73]      ipv6_add_addr+0x411/0x2000
[ 3993.649993][   T73]      inet6_addr_add+0x30e/0xa40
[ 3993.649993][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3993.649993][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3993.649993][   T73]      netlink_rcv_skb+0x130/0x360
[ 3993.649993][   T73]      netlink_unicast+0x449/0x710
[ 3993.649993][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3993.649993][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3993.649993][   T73]      ___sys_sendmsg+0xee/0x170
[ 3993.649993][   T73]      __sys_sendmsg+0xcd/0x170
[ 3993.649993][   T73]      do_syscall_64+0xc6/0x1e0
[ 3993.649993][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3993.649993][   T73] 
[ 3993.652035][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3993.652035][   T73]      netdev_get_by_index+0x5e/0x80
[ 3993.652035][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3993.652035][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3993.652035][   T73]      ip6_route_add+0x1c/0x140
[ 3993.652035][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3993.652035][   T73]      addrconf_add_dev+0xe2/0x170
[ 3993.652035][   T73]      inet6_addr_add+0x12f/0xa40
[ 3993.652035][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3993.652035][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3993.652035][   T73]      netlink_rcv_skb+0x130/0x360
[ 3993.652035][   T73]      netlink_unicast+0x449/0x710
[ 3993.652035][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3993.652035][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3993.652035][   T73]      ___sys_sendmsg+0xee/0x170
[ 3993.652035][   T73]      __sys_sendmsg+0xcd/0x170
[ 3993.652035][   T73]      do_syscall_64+0xc6/0x1e0
[ 3993.652035][   T73] 
[ 3993.654047][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3993.654047][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3993.654047][   T73]      ipv6_find_idev+0x102/0x170
[ 3993.654047][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3993.654047][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3993.654047][   T73]      netlink_rcv_skb+0x130/0x360
[ 3993.654047][   T73]      netlink_unicast+0x449/0x710
[ 3993.654047][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3993.654047][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3993.654047][   T73]      ___sys_sendmsg+0xee/0x170
[ 3993.654047][   T73]      __sys_sendmsg+0xcd/0x170
[ 3993.654047][   T73]      do_syscall_64+0xc6/0x1e0
[ 3993.654047][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3993.654047][   T73] 
[ 3993.655683][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 3993.655683][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3993.655683][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3993.655683][   T73]      ipv6_find_idev+0x102/0x170
[ 3993.655683][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3993.655683][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3993.655683][   T73]      netlink_rcv_skb+0x130/0x360
[ 3993.655683][   T73]      netlink_unicast+0x449/0x710
[ 3993.655683][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3993.655683][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3993.655683][   T73]      ___sys_sendmsg+0xee/0x170
[ 3993.655683][   T73]      __sys_sendmsg+0xcd/0x170
[ 3993.655683][   T73]      do_syscall_64+0xc6/0x1e0
[ 3993.655683][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3993.655683][   T73] 
[ 3993.657446][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 3993.657731][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3993.657731][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 3993.657731][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 3993.657731][   T73]      fib6_nh_init+0xa22/0x1580
[ 3993.657731][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3993.657731][   T73]      ip6_route_add+0x1c/0x140
[ 3993.657731][   T73]      inet6_rtm_newroute+0x104/0x110
[ 3993.657731][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3993.657731][   T73]      netlink_rcv_skb+0x130/0x360
[ 3993.657731][   T73]      netlink_unicast+0x449/0x710
[ 3993.657731][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3993.657731][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3993.657731][   T73]      ___sys_sendmsg+0xee/0x170
[ 3993.657731][   T73]      __sys_sendmsg+0xcd/0x170
[ 3993.657731][   T73]      do_syscall_64+0xc6/0x1e0
[ 3993.657731][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3993.657731][   T73] 
[ 3993.659888][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 3993.659888][   T73]      dst_init+0x84/0x4a0
[ 3993.659888][   T73]      dst_alloc+0x97/0x150
[ 3993.659888][   T73]      ip6_dst_alloc+0x23/0x90
[ 3993.659888][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 3993.659888][   T73]      ip6_pol_route+0x56f/0x840
[ 3993.659888][   T73]      fib6_rule_lookup+0x456/0x630
[ 3993.659888][   T73]      ip6_route_input+0x59c/0xa50
[ 3993.659888][   T73]      ipv6_rcv+0x397/0x810
[ 3993.659888][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 3993.659888][   T73]      process_backlog+0x101/0x620
[ 3993.659888][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 3993.659888][   T73]      net_rx_action+0x495/0xbe0
[ 3993.659888][   T73]      __do_softirq+0x1b5/0x7f6
[ 3993.659888][   T73] 
[ 3993.661896][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3993.661896][   T73]      netdev_get_by_index+0x5e/0x80
[ 3993.661896][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3993.661896][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3993.661896][   T73]      ip6_route_add+0x1c/0x140
[ 3993.661896][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3993.661896][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3993.661896][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3993.661896][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3993.661896][   T73]      netlink_rcv_skb+0x130/0x360
[ 3993.661896][   T73]      netlink_unicast+0x449/0x710
[ 3993.661896][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3993.661896][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3993.661896][   T73]      ___sys_sendmsg+0xee/0x170
[ 3993.661896][   T73]      __sys_sendmsg+0xcd/0x170
[ 3993.661896][   T73]      do_syscall_64+0xc6/0x1e0
[ 3993.661896][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3993.661896][   T73] 
[ 3993.664265][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3993.664265][   T73]      netdev_get_by_index+0x5e/0x80
[ 3993.664265][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3993.664265][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3993.664265][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3993.664265][   T73]      ipv6_add_addr+0x411/0x2000
[ 3993.664265][   T73]      inet6_addr_add+0x30e/0xa40
[ 3993.664265][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3993.664265][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3993.664265][   T73]      netlink_rcv_skb+0x130/0x360
[ 3993.664265][   T73]      netlink_unicast+0x449/0x710
[ 3993.664265][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3993.664265][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3993.664265][   T73]      ___sys_sendmsg+0xee/0x170
[ 3993.664265][   T73]      __sys_sendmsg+0xcd/0x170
[ 3993.664265][   T73]      do_syscall_64+0xc6/0x1e0
[ 3993.664265][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3993.664265][   T73] 
[ 3993.666556][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3993.666556][   T73]      netdev_get_by_index+0x5e/0x80
[ 3993.666556][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3993.666556][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3993.666556][   T73]      ip6_route_add+0x1c/0x140
[ 3993.666556][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3993.666556][   T73]      addrconf_add_dev+0xe2/0x170
[ 3993.666556][   T73]      inet6_addr_add+0x12f/0xa40
[ 3993.666556][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3993.666556][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3993.666556][   T73]      netlink_rcv_skb+0x130/0x360
[ 3993.666556][   T73]      netlink_unicast+0x449/0x710
[ 3993.666556][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3993.666556][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3993.666556][   T73]      ___sys_sendmsg+0xee/0x170
[ 3993.666556][   T73]      __sys_sendmsg+0xcd/0x170
[ 3993.666556][   T73]      do_syscall_64+0xc6/0x1e0
[ 3993.666556][   T73] 
[ 3993.668796][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3993.668796][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3993.668796][   T73]      ipv6_find_idev+0x102/0x170
[ 3993.668796][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3993.668796][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3993.668796][   T73]      netlink_rcv_skb+0x130/0x360
[ 3993.668796][   T73]      netlink_unicast+0x449/0x710
[ 3993.668796][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3993.668796][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3993.668796][   T73]      ___sys_sendmsg+0xee/0x170
[ 3993.668796][   T73]      __sys_sendmsg+0xcd/0x170
[ 3993.668796][   T73]      do_syscall_64+0xc6/0x1e0
[ 3993.668796][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3993.668796][   T73] 
[ 3993.670632][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 3993.670632][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3993.670632][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3993.670632][   T73]      ipv6_find_idev+0x102/0x170
[ 3993.670632][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3993.670632][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3993.670632][   T73]      netlink_rcv_skb+0x130/0x360
[ 3993.670632][   T73]      netlink_unicast+0x449/0x710
[ 3993.670632][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3993.670632][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3993.670632][   T73]      ___sys_sendmsg+0xee/0x170
[ 3993.670632][   T73]      __sys_sendmsg+0xcd/0x170
[ 3993.670632][   T73]      do_syscall_64+0xc6/0x1e0
[ 3993.670632][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3993.670632][   T73] 
[ 3993.672519][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 3993.673327][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3993.673327][   T73]      netdev_get_by_index+0x5e/0x80
[ 3993.673327][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3993.673327][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3993.673327][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 3993.673327][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 3993.673327][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 3993.673327][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 3993.673327][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 3993.673327][   T73]      addrconf_dad_begin+0x310/0x670
[ 3993.673327][   T73]      addrconf_dad_work+0x10b/0xab0
[ 3993.673327][   T73]      process_one_work+0x84d/0x18a0
[ 3993.673327][   T73]      worker_thread+0x587/0xd30
[ 3993.673327][   T73]      kthread+0x28a/0x350
[ 3993.673327][   T73]      ret_from_fork+0x31/0x70
[ 3993.673327][   T73]      ret_from_fork_asm+0x1a/0x30
[ 3993.673327][   T73] 
[ 3993.675269][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3993.675269][   T73]      netdev_get_by_index+0x5e/0x80
[ 3993.675269][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3993.675269][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3993.675269][   T73]      ip6_route_add+0x1c/0x140
[ 3993.675269][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 3993.675269][   T73]      inet6_addr_add+0x4f8/0xa40
[ 3993.675269][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3993.675269][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3993.675269][   T73]      netlink_rcv_skb+0x130/0x360
[ 3993.675269][   T73]      netlink_unicast+0x449/0x710
[ 3993.675269][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3993.675269][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3993.675269][   T73]      ___sys_sendmsg+0xee/0x170
[ 3993.675269][   T73]      __sys_sendmsg+0xcd/0x170
[ 3993.675269][   T73]      do_syscall_64+0xc6/0x1e0
[ 3993.675269][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3993.675269][   T73] 
[ 3993.677359][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3993.677359][   T73]      netdev_get_by_index+0x5e/0x80
[ 3993.677359][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3993.677359][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3993.677359][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 3993.677359][   T73]      ipv6_add_addr+0x411/0x2000
[ 3993.677359][   T73]      inet6_addr_add+0x30e/0xa40
[ 3993.677359][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3993.677359][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3993.677359][   T73]      netlink_rcv_skb+0x130/0x360
[ 3993.677359][   T73]      netlink_unicast+0x449/0x710
[ 3993.677359][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3993.677359][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3993.677359][   T73]      ___sys_sendmsg+0xee/0x170
[ 3993.677359][   T73]      __sys_sendmsg+0xcd/0x170
[ 3993.677359][   T73]      do_syscall_64+0xc6/0x1e0
[ 3993.677359][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3993.677359][   T73] 
[ 3993.679987][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3993.679987][   T73]      netdev_get_by_index+0x5e/0x80
[ 3993.679987][   T73]      fib6_nh_init+0x3d8/0x1580
[ 3993.679987][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 3993.679987][   T73]      ip6_route_add+0x1c/0x140
[ 3993.679987][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 3993.679987][   T73]      addrconf_add_dev+0xe2/0x170
[ 3993.679987][   T73]      inet6_addr_add+0x12f/0xa40
[ 3993.679987][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 3993.679987][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3993.679987][   T73]      netlink_rcv_skb+0x130/0x360
[ 3993.679987][   T73]      netlink_unicast+0x449/0x710
[ 3993.679987][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3993.679987][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3993.679987][   T73]      ___sys_sendmsg+0xee/0x170
[ 3993.679987][   T73]      __sys_sendmsg+0xcd/0x170
[ 3993.679987][   T73]      do_syscall_64+0xc6/0x1e0
[ 3993.679987][   T73] 
[ 3993.682210][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3993.682210][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 3993.682210][   T73]      ipv6_find_idev+0x102/0x170
[ 3993.682210][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3993.682210][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3993.682210][   T73]      netlink_rcv_skb+0x130/0x360
[ 3993.682210][   T73]      netlink_unicast+0x449/0x710
[ 3993.682210][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3993.682210][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3993.682210][   T73]      ___sys_sendmsg+0xee/0x170
[ 3993.682210][   T73]      __sys_sendmsg+0xcd/0x170
[ 3993.682210][   T73]      do_syscall_64+0xc6/0x1e0
[ 3993.682210][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3993.682210][   T73] 
[ 3993.683992][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 3993.683992][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 3993.683992][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 3993.683992][   T73]      ipv6_find_idev+0x102/0x170
[ 3993.683992][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 3993.683992][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 3993.683992][   T73]      netlink_rcv_skb+0x130/0x360
[ 3993.683992][   T73]      netlink_unicast+0x449/0x710
[ 3993.683992][   T73]      netlink_sendmsg+0x723/0xbe0
[ 3993.683992][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 3993.683992][   T73]      ___sys_sendmsg+0xee/0x170
[ 3993.683992][   T73]      __sys_sendmsg+0xcd/0x170
[ 3993.683992][   T73]      do_syscall_64+0xc6/0x1e0
[ 3993.683992][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 3993.683992][   T73] 
[ 4003.687847][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4003.688287][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4003.688287][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4003.688287][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4003.688287][   T73]      fib6_nh_init+0xa22/0x1580
[ 4003.688287][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4003.688287][   T73]      ip6_route_add+0x1c/0x140
[ 4003.688287][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4003.688287][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4003.688287][   T73]      netlink_rcv_skb+0x130/0x360
[ 4003.688287][   T73]      netlink_unicast+0x449/0x710
[ 4003.688287][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4003.688287][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4003.688287][   T73]      ___sys_sendmsg+0xee/0x170
[ 4003.688287][   T73]      __sys_sendmsg+0xcd/0x170
[ 4003.688287][   T73]      do_syscall_64+0xc6/0x1e0
[ 4003.688287][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4003.688287][   T73] 
[ 4003.690320][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4003.690320][   T73]      dst_init+0x84/0x4a0
[ 4003.690320][   T73]      dst_alloc+0x97/0x150
[ 4003.690320][   T73]      ip6_dst_alloc+0x23/0x90
[ 4003.690320][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4003.690320][   T73]      ip6_pol_route+0x56f/0x840
[ 4003.690320][   T73]      fib6_rule_lookup+0x456/0x630
[ 4003.690320][   T73]      ip6_route_input+0x59c/0xa50
[ 4003.690320][   T73]      ipv6_rcv+0x397/0x810
[ 4003.690320][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4003.690320][   T73]      process_backlog+0x101/0x620
[ 4003.690320][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4003.690320][   T73]      net_rx_action+0x495/0xbe0
[ 4003.690320][   T73]      __do_softirq+0x1b5/0x7f6
[ 4003.690320][   T73] 
[ 4003.692084][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4003.692084][   T73]      netdev_get_by_index+0x5e/0x80
[ 4003.692084][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4003.692084][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4003.692084][   T73]      ip6_route_add+0x1c/0x140
[ 4003.692084][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4003.692084][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4003.692084][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4003.692084][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4003.692084][   T73]      netlink_rcv_skb+0x130/0x360
[ 4003.692084][   T73]      netlink_unicast+0x449/0x710
[ 4003.692084][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4003.692084][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4003.692084][   T73]      ___sys_sendmsg+0xee/0x170
[ 4003.692084][   T73]      __sys_sendmsg+0xcd/0x170
[ 4003.692084][   T73]      do_syscall_64+0xc6/0x1e0
[ 4003.692084][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4003.692084][   T73] 
[ 4003.694160][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4003.694160][   T73]      netdev_get_by_index+0x5e/0x80
[ 4003.694160][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4003.694160][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4003.694160][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4003.694160][   T73]      ipv6_add_addr+0x411/0x2000
[ 4003.694160][   T73]      inet6_addr_add+0x30e/0xa40
[ 4003.694160][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4003.694160][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4003.694160][   T73]      netlink_rcv_skb+0x130/0x360
[ 4003.694160][   T73]      netlink_unicast+0x449/0x710
[ 4003.694160][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4003.694160][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4003.694160][   T73]      ___sys_sendmsg+0xee/0x170
[ 4003.694160][   T73]      __sys_sendmsg+0xcd/0x170
[ 4003.694160][   T73]      do_syscall_64+0xc6/0x1e0
[ 4003.694160][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4003.694160][   T73] 
[ 4003.696246][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4003.696246][   T73]      netdev_get_by_index+0x5e/0x80
[ 4003.696246][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4003.696246][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4003.696246][   T73]      ip6_route_add+0x1c/0x140
[ 4003.696246][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4003.696246][   T73]      addrconf_add_dev+0xe2/0x170
[ 4003.696246][   T73]      inet6_addr_add+0x12f/0xa40
[ 4003.696246][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4003.696246][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4003.696246][   T73]      netlink_rcv_skb+0x130/0x360
[ 4003.696246][   T73]      netlink_unicast+0x449/0x710
[ 4003.696246][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4003.696246][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4003.696246][   T73]      ___sys_sendmsg+0xee/0x170
[ 4003.696246][   T73]      __sys_sendmsg+0xcd/0x170
[ 4003.696246][   T73]      do_syscall_64+0xc6/0x1e0
[ 4003.696246][   T73] 
[ 4003.698243][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4003.698243][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4003.698243][   T73]      ipv6_find_idev+0x102/0x170
[ 4003.698243][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4003.698243][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4003.698243][   T73]      netlink_rcv_skb+0x130/0x360
[ 4003.698243][   T73]      netlink_unicast+0x449/0x710
[ 4003.698243][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4003.698243][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4003.698243][   T73]      ___sys_sendmsg+0xee/0x170
[ 4003.698243][   T73]      __sys_sendmsg+0xcd/0x170
[ 4003.698243][   T73]      do_syscall_64+0xc6/0x1e0
[ 4003.698243][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4003.698243][   T73] 
[ 4003.699822][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4003.699822][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4003.699822][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4003.699822][   T73]      ipv6_find_idev+0x102/0x170
[ 4003.699822][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4003.699822][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4003.699822][   T73]      netlink_rcv_skb+0x130/0x360
[ 4003.699822][   T73]      netlink_unicast+0x449/0x710
[ 4003.699822][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4003.699822][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4003.699822][   T73]      ___sys_sendmsg+0xee/0x170
[ 4003.699822][   T73]      __sys_sendmsg+0xcd/0x170
[ 4003.699822][   T73]      do_syscall_64+0xc6/0x1e0
[ 4003.699822][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4003.699822][   T73] 
[ 4003.701550][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4003.701856][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4003.701856][   T73]      netdev_get_by_index+0x5e/0x80
[ 4003.701856][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4003.701856][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4003.701856][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4003.701856][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4003.701856][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4003.701856][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4003.701856][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4003.701856][   T73]      addrconf_dad_begin+0x310/0x670
[ 4003.701856][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4003.701856][   T73]      process_one_work+0x84d/0x18a0
[ 4003.701856][   T73]      worker_thread+0x587/0xd30
[ 4003.701856][   T73]      kthread+0x28a/0x350
[ 4003.701856][   T73]      ret_from_fork+0x31/0x70
[ 4003.701856][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4003.701856][   T73] 
[ 4003.703860][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4003.703860][   T73]      netdev_get_by_index+0x5e/0x80
[ 4003.703860][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4003.703860][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4003.703860][   T73]      ip6_route_add+0x1c/0x140
[ 4003.703860][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4003.703860][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4003.703860][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4003.703860][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4003.703860][   T73]      netlink_rcv_skb+0x130/0x360
[ 4003.703860][   T73]      netlink_unicast+0x449/0x710
[ 4003.703860][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4003.703860][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4003.703860][   T73]      ___sys_sendmsg+0xee/0x170
[ 4003.703860][   T73]      __sys_sendmsg+0xcd/0x170
[ 4003.703860][   T73]      do_syscall_64+0xc6/0x1e0
[ 4003.703860][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4003.703860][   T73] 
[ 4003.705975][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4003.705975][   T73]      netdev_get_by_index+0x5e/0x80
[ 4003.705975][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4003.705975][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4003.705975][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4003.705975][   T73]      ipv6_add_addr+0x411/0x2000
[ 4003.705975][   T73]      inet6_addr_add+0x30e/0xa40
[ 4003.705975][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4003.705975][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4003.705975][   T73]      netlink_rcv_skb+0x130/0x360
[ 4003.705975][   T73]      netlink_unicast+0x449/0x710
[ 4003.705975][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4003.705975][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4003.705975][   T73]      ___sys_sendmsg+0xee/0x170
[ 4003.705975][   T73]      __sys_sendmsg+0xcd/0x170
[ 4003.705975][   T73]      do_syscall_64+0xc6/0x1e0
[ 4003.705975][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4003.705975][   T73] 
[ 4003.708134][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4003.708134][   T73]      netdev_get_by_index+0x5e/0x80
[ 4003.708134][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4003.708134][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4003.708134][   T73]      ip6_route_add+0x1c/0x140
[ 4003.708134][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4003.708134][   T73]      addrconf_add_dev+0xe2/0x170
[ 4003.708134][   T73]      inet6_addr_add+0x12f/0xa40
[ 4003.708134][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4003.708134][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4003.708134][   T73]      netlink_rcv_skb+0x130/0x360
[ 4003.708134][   T73]      netlink_unicast+0x449/0x710
[ 4003.708134][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4003.708134][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4003.708134][   T73]      ___sys_sendmsg+0xee/0x170
[ 4003.708134][   T73]      __sys_sendmsg+0xcd/0x170
[ 4003.708134][   T73]      do_syscall_64+0xc6/0x1e0
[ 4003.708134][   T73] 
[ 4003.710188][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4003.710188][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4003.710188][   T73]      ipv6_find_idev+0x102/0x170
[ 4003.710188][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4003.710188][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4003.710188][   T73]      netlink_rcv_skb+0x130/0x360
[ 4003.710188][   T73]      netlink_unicast+0x449/0x710
[ 4003.710188][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4003.710188][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4003.710188][   T73]      ___sys_sendmsg+0xee/0x170
[ 4003.710188][   T73]      __sys_sendmsg+0xcd/0x170
[ 4003.710188][   T73]      do_syscall_64+0xc6/0x1e0
[ 4003.710188][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4003.710188][   T73] 
[ 4003.711825][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4003.711825][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4003.711825][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4003.711825][   T73]      ipv6_find_idev+0x102/0x170
[ 4003.711825][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4003.711825][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4003.711825][   T73]      netlink_rcv_skb+0x130/0x360
[ 4003.711825][   T73]      netlink_unicast+0x449/0x710
[ 4003.711825][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4003.711825][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4003.711825][   T73]      ___sys_sendmsg+0xee/0x170
[ 4003.711825][   T73]      __sys_sendmsg+0xcd/0x170
[ 4003.711825][   T73]      do_syscall_64+0xc6/0x1e0
[ 4003.711825][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4003.711825][   T73] 
[ 4003.713567][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4003.714298][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4003.714298][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4003.714298][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4003.714298][   T73]      fib6_nh_init+0xa22/0x1580
[ 4003.714298][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4003.714298][   T73]      ip6_route_add+0x1c/0x140
[ 4003.714298][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4003.714298][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4003.714298][   T73]      netlink_rcv_skb+0x130/0x360
[ 4003.714298][   T73]      netlink_unicast+0x449/0x710
[ 4003.714298][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4003.714298][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4003.714298][   T73]      ___sys_sendmsg+0xee/0x170
[ 4003.714298][   T73]      __sys_sendmsg+0xcd/0x170
[ 4003.714298][   T73]      do_syscall_64+0xc6/0x1e0
[ 4003.714298][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4003.714298][   T73] 
[ 4003.716248][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4003.716248][   T73]      dst_init+0x84/0x4a0
[ 4003.716248][   T73]      dst_alloc+0x97/0x150
[ 4003.716248][   T73]      ip6_dst_alloc+0x23/0x90
[ 4003.716248][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4003.716248][   T73]      ip6_pol_route+0x56f/0x840
[ 4003.716248][   T73]      fib6_rule_lookup+0x456/0x630
[ 4003.716248][   T73]      ip6_route_input+0x59c/0xa50
[ 4003.716248][   T73]      ipv6_rcv+0x397/0x810
[ 4003.716248][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4003.716248][   T73]      process_backlog+0x101/0x620
[ 4003.716248][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4003.716248][   T73]      net_rx_action+0x495/0xbe0
[ 4003.716248][   T73]      __do_softirq+0x1b5/0x7f6
[ 4003.716248][   T73] 
[ 4003.717899][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4003.717899][   T73]      netdev_get_by_index+0x5e/0x80
[ 4003.717899][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4003.717899][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4003.717899][   T73]      ip6_route_add+0x1c/0x140
[ 4003.717899][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4003.717899][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4003.717899][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4003.717899][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4003.717899][   T73]      netlink_rcv_skb+0x130/0x360
[ 4003.717899][   T73]      netlink_unicast+0x449/0x710
[ 4003.717899][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4003.717899][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4003.717899][   T73]      ___sys_sendmsg+0xee/0x170
[ 4003.717899][   T73]      __sys_sendmsg+0xcd/0x170
[ 4003.717899][   T73]      do_syscall_64+0xc6/0x1e0
[ 4003.717899][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4003.717899][   T73] 
[ 4003.720285][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4003.720285][   T73]      netdev_get_by_index+0x5e/0x80
[ 4003.720285][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4003.720285][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4003.720285][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4003.720285][   T73]      ipv6_add_addr+0x411/0x2000
[ 4003.720285][   T73]      inet6_addr_add+0x30e/0xa40
[ 4003.720285][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4003.720285][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4003.720285][   T73]      netlink_rcv_skb+0x130/0x360
[ 4003.720285][   T73]      netlink_unicast+0x449/0x710
[ 4003.720285][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4003.720285][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4003.720285][   T73]      ___sys_sendmsg+0xee/0x170
[ 4003.720285][   T73]      __sys_sendmsg+0xcd/0x170
[ 4003.720285][   T73]      do_syscall_64+0xc6/0x1e0
[ 4003.720285][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4003.720285][   T73] 
[ 4003.722563][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4003.722563][   T73]      netdev_get_by_index+0x5e/0x80
[ 4003.722563][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4003.722563][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4003.722563][   T73]      ip6_route_add+0x1c/0x140
[ 4003.722563][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4003.722563][   T73]      addrconf_add_dev+0xe2/0x170
[ 4003.722563][   T73]      inet6_addr_add+0x12f/0xa40
[ 4003.722563][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4003.722563][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4003.722563][   T73]      netlink_rcv_skb+0x130/0x360
[ 4003.722563][   T73]      netlink_unicast+0x449/0x710
[ 4003.722563][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4003.722563][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4003.722563][   T73]      ___sys_sendmsg+0xee/0x170
[ 4003.722563][   T73]      __sys_sendmsg+0xcd/0x170
[ 4003.722563][   T73]      do_syscall_64+0xc6/0x1e0
[ 4003.722563][   T73] 
[ 4003.725506][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4003.725506][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4003.725506][   T73]      ipv6_find_idev+0x102/0x170
[ 4003.725506][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4003.725506][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4003.725506][   T73]      netlink_rcv_skb+0x130/0x360
[ 4003.725506][   T73]      netlink_unicast+0x449/0x710
[ 4003.725506][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4003.725506][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4003.725506][   T73]      ___sys_sendmsg+0xee/0x170
[ 4003.725506][   T73]      __sys_sendmsg+0xcd/0x170
[ 4003.725506][   T73]      do_syscall_64+0xc6/0x1e0
[ 4003.725506][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4003.725506][   T73] 
[ 4003.728214][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4003.728214][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4003.728214][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4003.728214][   T73]      ipv6_find_idev+0x102/0x170
[ 4003.728214][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4003.728214][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4003.728214][   T73]      netlink_rcv_skb+0x130/0x360
[ 4003.728214][   T73]      netlink_unicast+0x449/0x710
[ 4003.728214][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4003.728214][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4003.728214][   T73]      ___sys_sendmsg+0xee/0x170
[ 4003.728214][   T73]      __sys_sendmsg+0xcd/0x170
[ 4003.728214][   T73]      do_syscall_64+0xc6/0x1e0
[ 4003.728214][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4003.728214][   T73] 
[ 4003.731388][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4003.731901][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4003.731901][   T73]      netdev_get_by_index+0x5e/0x80
[ 4003.731901][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4003.731901][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4003.731901][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4003.731901][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4003.731901][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4003.731901][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4003.731901][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4003.731901][   T73]      addrconf_dad_begin+0x310/0x670
[ 4003.731901][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4003.731901][   T73]      process_one_work+0x84d/0x18a0
[ 4003.731901][   T73]      worker_thread+0x587/0xd30
[ 4003.731901][   T73]      kthread+0x28a/0x350
[ 4003.731901][   T73]      ret_from_fork+0x31/0x70
[ 4003.731901][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4003.731901][   T73] 
[ 4003.735114][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4003.735114][   T73]      netdev_get_by_index+0x5e/0x80
[ 4003.735114][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4003.735114][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4003.735114][   T73]      ip6_route_add+0x1c/0x140
[ 4003.735114][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4003.735114][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4003.735114][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4003.735114][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4003.735114][   T73]      netlink_rcv_skb+0x130/0x360
[ 4003.735114][   T73]      netlink_unicast+0x449/0x710
[ 4003.735114][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4003.735114][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4003.735114][   T73]      ___sys_sendmsg+0xee/0x170
[ 4003.735114][   T73]      __sys_sendmsg+0xcd/0x170
[ 4003.735114][   T73]      do_syscall_64+0xc6/0x1e0
[ 4003.735114][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4003.735114][   T73] 
[ 4003.738648][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4003.738648][   T73]      netdev_get_by_index+0x5e/0x80
[ 4003.738648][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4003.738648][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4003.738648][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4003.738648][   T73]      ipv6_add_addr+0x411/0x2000
[ 4003.738648][   T73]      inet6_addr_add+0x30e/0xa40
[ 4003.738648][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4003.738648][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4003.738648][   T73]      netlink_rcv_skb+0x130/0x360
[ 4003.738648][   T73]      netlink_unicast+0x449/0x710
[ 4003.738648][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4003.738648][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4003.738648][   T73]      ___sys_sendmsg+0xee/0x170
[ 4003.738648][   T73]      __sys_sendmsg+0xcd/0x170
[ 4003.738648][   T73]      do_syscall_64+0xc6/0x1e0
[ 4003.738648][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4003.738648][   T73] 
[ 4003.742073][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4003.742073][   T73]      netdev_get_by_index+0x5e/0x80
[ 4003.742073][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4003.742073][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4003.742073][   T73]      ip6_route_add+0x1c/0x140
[ 4003.742073][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4003.742073][   T73]      addrconf_add_dev+0xe2/0x170
[ 4003.742073][   T73]      inet6_addr_add+0x12f/0xa40
[ 4003.742073][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4003.742073][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4003.742073][   T73]      netlink_rcv_skb+0x130/0x360
[ 4003.742073][   T73]      netlink_unicast+0x449/0x710
[ 4003.742073][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4003.742073][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4003.742073][   T73]      ___sys_sendmsg+0xee/0x170
[ 4003.742073][   T73]      __sys_sendmsg+0xcd/0x170
[ 4003.742073][   T73]      do_syscall_64+0xc6/0x1e0
[ 4003.742073][   T73] 
[ 4003.745534][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4003.745534][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4003.745534][   T73]      ipv6_find_idev+0x102/0x170
[ 4003.745534][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4003.745534][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4003.745534][   T73]      netlink_rcv_skb+0x130/0x360
[ 4003.745534][   T73]      netlink_unicast+0x449/0x710
[ 4003.745534][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4003.745534][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4003.745534][   T73]      ___sys_sendmsg+0xee/0x170
[ 4003.745534][   T73]      __sys_sendmsg+0xcd/0x170
[ 4003.745534][   T73]      do_syscall_64+0xc6/0x1e0
[ 4003.745534][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4003.745534][   T73] 
[ 4003.748261][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4003.748261][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4003.748261][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4003.748261][   T73]      ipv6_find_idev+0x102/0x170
[ 4003.748261][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4003.748261][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4003.748261][   T73]      netlink_rcv_skb+0x130/0x360
[ 4003.748261][   T73]      netlink_unicast+0x449/0x710
[ 4003.748261][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4003.748261][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4003.748261][   T73]      ___sys_sendmsg+0xee/0x170
[ 4003.748261][   T73]      __sys_sendmsg+0xcd/0x170
[ 4003.748261][   T73]      do_syscall_64+0xc6/0x1e0
[ 4003.748261][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4003.748261][   T73] 
[ 4013.911759][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4013.912331][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4013.912331][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4013.912331][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4013.912331][   T73]      fib6_nh_init+0xa22/0x1580
[ 4013.912331][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4013.912331][   T73]      ip6_route_add+0x1c/0x140
[ 4013.912331][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4013.912331][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4013.912331][   T73]      netlink_rcv_skb+0x130/0x360
[ 4013.912331][   T73]      netlink_unicast+0x449/0x710
[ 4013.912331][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4013.912331][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4013.912331][   T73]      ___sys_sendmsg+0xee/0x170
[ 4013.912331][   T73]      __sys_sendmsg+0xcd/0x170
[ 4013.912331][   T73]      do_syscall_64+0xc6/0x1e0
[ 4013.912331][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4013.912331][   T73] 
[ 4013.914304][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4013.914304][   T73]      dst_init+0x84/0x4a0
[ 4013.914304][   T73]      dst_alloc+0x97/0x150
[ 4013.914304][   T73]      ip6_dst_alloc+0x23/0x90
[ 4013.914304][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4013.914304][   T73]      ip6_pol_route+0x56f/0x840
[ 4013.914304][   T73]      fib6_rule_lookup+0x456/0x630
[ 4013.914304][   T73]      ip6_route_input+0x59c/0xa50
[ 4013.914304][   T73]      ipv6_rcv+0x397/0x810
[ 4013.914304][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4013.914304][   T73]      process_backlog+0x101/0x620
[ 4013.914304][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4013.914304][   T73]      net_rx_action+0x495/0xbe0
[ 4013.914304][   T73]      __do_softirq+0x1b5/0x7f6
[ 4013.914304][   T73] 
[ 4013.915976][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4013.915976][   T73]      netdev_get_by_index+0x5e/0x80
[ 4013.915976][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4013.915976][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4013.915976][   T73]      ip6_route_add+0x1c/0x140
[ 4013.915976][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4013.915976][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4013.915976][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4013.915976][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4013.915976][   T73]      netlink_rcv_skb+0x130/0x360
[ 4013.915976][   T73]      netlink_unicast+0x449/0x710
[ 4013.915976][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4013.915976][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4013.915976][   T73]      ___sys_sendmsg+0xee/0x170
[ 4013.915976][   T73]      __sys_sendmsg+0xcd/0x170
[ 4013.915976][   T73]      do_syscall_64+0xc6/0x1e0
[ 4013.915976][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4013.915976][   T73] 
[ 4013.917993][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4013.917993][   T73]      netdev_get_by_index+0x5e/0x80
[ 4013.917993][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4013.917993][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4013.917993][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4013.917993][   T73]      ipv6_add_addr+0x411/0x2000
[ 4013.917993][   T73]      inet6_addr_add+0x30e/0xa40
[ 4013.917993][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4013.917993][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4013.917993][   T73]      netlink_rcv_skb+0x130/0x360
[ 4013.917993][   T73]      netlink_unicast+0x449/0x710
[ 4013.917993][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4013.917993][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4013.917993][   T73]      ___sys_sendmsg+0xee/0x170
[ 4013.917993][   T73]      __sys_sendmsg+0xcd/0x170
[ 4013.917993][   T73]      do_syscall_64+0xc6/0x1e0
[ 4013.917993][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4013.917993][   T73] 
[ 4013.920007][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4013.920007][   T73]      netdev_get_by_index+0x5e/0x80
[ 4013.920007][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4013.920007][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4013.920007][   T73]      ip6_route_add+0x1c/0x140
[ 4013.920007][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4013.920007][   T73]      addrconf_add_dev+0xe2/0x170
[ 4013.920007][   T73]      inet6_addr_add+0x12f/0xa40
[ 4013.920007][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4013.920007][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4013.920007][   T73]      netlink_rcv_skb+0x130/0x360
[ 4013.920007][   T73]      netlink_unicast+0x449/0x710
[ 4013.920007][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4013.920007][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4013.920007][   T73]      ___sys_sendmsg+0xee/0x170
[ 4013.920007][   T73]      __sys_sendmsg+0xcd/0x170
[ 4013.920007][   T73]      do_syscall_64+0xc6/0x1e0
[ 4013.920007][   T73] 
[ 4013.921996][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4013.921996][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4013.921996][   T73]      ipv6_find_idev+0x102/0x170
[ 4013.921996][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4013.921996][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4013.921996][   T73]      netlink_rcv_skb+0x130/0x360
[ 4013.921996][   T73]      netlink_unicast+0x449/0x710
[ 4013.921996][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4013.921996][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4013.921996][   T73]      ___sys_sendmsg+0xee/0x170
[ 4013.921996][   T73]      __sys_sendmsg+0xcd/0x170
[ 4013.921996][   T73]      do_syscall_64+0xc6/0x1e0
[ 4013.921996][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4013.921996][   T73] 
[ 4013.923548][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4013.923548][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4013.923548][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4013.923548][   T73]      ipv6_find_idev+0x102/0x170
[ 4013.923548][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4013.923548][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4013.923548][   T73]      netlink_rcv_skb+0x130/0x360
[ 4013.923548][   T73]      netlink_unicast+0x449/0x710
[ 4013.923548][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4013.923548][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4013.923548][   T73]      ___sys_sendmsg+0xee/0x170
[ 4013.923548][   T73]      __sys_sendmsg+0xcd/0x170
[ 4013.923548][   T73]      do_syscall_64+0xc6/0x1e0
[ 4013.923548][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4013.923548][   T73] 
[ 4013.925267][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4013.925554][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4013.925554][   T73]      netdev_get_by_index+0x5e/0x80
[ 4013.925554][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4013.925554][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4013.925554][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4013.925554][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4013.925554][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4013.925554][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4013.925554][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4013.925554][   T73]      addrconf_dad_begin+0x310/0x670
[ 4013.925554][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4013.925554][   T73]      process_one_work+0x84d/0x18a0
[ 4013.925554][   T73]      worker_thread+0x587/0xd30
[ 4013.925554][   T73]      kthread+0x28a/0x350
[ 4013.925554][   T73]      ret_from_fork+0x31/0x70
[ 4013.925554][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4013.925554][   T73] 
[ 4013.927489][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4013.927489][   T73]      netdev_get_by_index+0x5e/0x80
[ 4013.927489][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4013.927489][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4013.927489][   T73]      ip6_route_add+0x1c/0x140
[ 4013.927489][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4013.927489][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4013.927489][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4013.927489][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4013.927489][   T73]      netlink_rcv_skb+0x130/0x360
[ 4013.927489][   T73]      netlink_unicast+0x449/0x710
[ 4013.927489][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4013.927489][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4013.927489][   T73]      ___sys_sendmsg+0xee/0x170
[ 4013.927489][   T73]      __sys_sendmsg+0xcd/0x170
[ 4013.927489][   T73]      do_syscall_64+0xc6/0x1e0
[ 4013.927489][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4013.927489][   T73] 
[ 4013.929505][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4013.929505][   T73]      netdev_get_by_index+0x5e/0x80
[ 4013.929505][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4013.929505][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4013.929505][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4013.929505][   T73]      ipv6_add_addr+0x411/0x2000
[ 4013.929505][   T73]      inet6_addr_add+0x30e/0xa40
[ 4013.929505][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4013.929505][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4013.929505][   T73]      netlink_rcv_skb+0x130/0x360
[ 4013.929505][   T73]      netlink_unicast+0x449/0x710
[ 4013.929505][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4013.929505][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4013.929505][   T73]      ___sys_sendmsg+0xee/0x170
[ 4013.929505][   T73]      __sys_sendmsg+0xcd/0x170
[ 4013.929505][   T73]      do_syscall_64+0xc6/0x1e0
[ 4013.929505][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4013.929505][   T73] 
[ 4013.931520][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4013.931520][   T73]      netdev_get_by_index+0x5e/0x80
[ 4013.931520][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4013.931520][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4013.931520][   T73]      ip6_route_add+0x1c/0x140
[ 4013.931520][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4013.931520][   T73]      addrconf_add_dev+0xe2/0x170
[ 4013.931520][   T73]      inet6_addr_add+0x12f/0xa40
[ 4013.931520][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4013.931520][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4013.931520][   T73]      netlink_rcv_skb+0x130/0x360
[ 4013.931520][   T73]      netlink_unicast+0x449/0x710
[ 4013.931520][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4013.931520][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4013.931520][   T73]      ___sys_sendmsg+0xee/0x170
[ 4013.931520][   T73]      __sys_sendmsg+0xcd/0x170
[ 4013.931520][   T73]      do_syscall_64+0xc6/0x1e0
[ 4013.931520][   T73] 
[ 4013.933497][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4013.933497][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4013.933497][   T73]      ipv6_find_idev+0x102/0x170
[ 4013.933497][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4013.933497][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4013.933497][   T73]      netlink_rcv_skb+0x130/0x360
[ 4013.933497][   T73]      netlink_unicast+0x449/0x710
[ 4013.933497][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4013.933497][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4013.933497][   T73]      ___sys_sendmsg+0xee/0x170
[ 4013.933497][   T73]      __sys_sendmsg+0xcd/0x170
[ 4013.933497][   T73]      do_syscall_64+0xc6/0x1e0
[ 4013.933497][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4013.933497][   T73] 
[ 4013.935065][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4013.935065][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4013.935065][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4013.935065][   T73]      ipv6_find_idev+0x102/0x170
[ 4013.935065][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4013.935065][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4013.935065][   T73]      netlink_rcv_skb+0x130/0x360
[ 4013.935065][   T73]      netlink_unicast+0x449/0x710
[ 4013.935065][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4013.935065][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4013.935065][   T73]      ___sys_sendmsg+0xee/0x170
[ 4013.935065][   T73]      __sys_sendmsg+0xcd/0x170
[ 4013.935065][   T73]      do_syscall_64+0xc6/0x1e0
[ 4013.935065][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4013.935065][   T73] 
[ 4013.936767][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4013.937047][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4013.937047][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4013.937047][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4013.937047][   T73]      fib6_nh_init+0xa22/0x1580
[ 4013.937047][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4013.937047][   T73]      ip6_route_add+0x1c/0x140
[ 4013.937047][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4013.937047][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4013.937047][   T73]      netlink_rcv_skb+0x130/0x360
[ 4013.937047][   T73]      netlink_unicast+0x449/0x710
[ 4013.937047][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4013.937047][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4013.937047][   T73]      ___sys_sendmsg+0xee/0x170
[ 4013.937047][   T73]      __sys_sendmsg+0xcd/0x170
[ 4013.937047][   T73]      do_syscall_64+0xc6/0x1e0
[ 4013.937047][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4013.937047][   T73] 
[ 4013.939192][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4013.939192][   T73]      dst_init+0x84/0x4a0
[ 4013.939192][   T73]      dst_alloc+0x97/0x150
[ 4013.939192][   T73]      ip6_dst_alloc+0x23/0x90
[ 4013.939192][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4013.939192][   T73]      ip6_pol_route+0x56f/0x840
[ 4013.939192][   T73]      fib6_rule_lookup+0x456/0x630
[ 4013.939192][   T73]      ip6_route_input+0x59c/0xa50
[ 4013.939192][   T73]      ipv6_rcv+0x397/0x810
[ 4013.939192][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4013.939192][   T73]      process_backlog+0x101/0x620
[ 4013.939192][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4013.939192][   T73]      net_rx_action+0x495/0xbe0
[ 4013.939192][   T73]      __do_softirq+0x1b5/0x7f6
[ 4013.939192][   T73] 
[ 4013.941092][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4013.941092][   T73]      netdev_get_by_index+0x5e/0x80
[ 4013.941092][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4013.941092][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4013.941092][   T73]      ip6_route_add+0x1c/0x140
[ 4013.941092][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4013.941092][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4013.941092][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4013.941092][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4013.941092][   T73]      netlink_rcv_skb+0x130/0x360
[ 4013.941092][   T73]      netlink_unicast+0x449/0x710
[ 4013.941092][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4013.941092][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4013.941092][   T73]      ___sys_sendmsg+0xee/0x170
[ 4013.941092][   T73]      __sys_sendmsg+0xcd/0x170
[ 4013.941092][   T73]      do_syscall_64+0xc6/0x1e0
[ 4013.941092][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4013.941092][   T73] 
[ 4013.943342][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4013.943342][   T73]      netdev_get_by_index+0x5e/0x80
[ 4013.943342][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4013.943342][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4013.943342][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4013.943342][   T73]      ipv6_add_addr+0x411/0x2000
[ 4013.943342][   T73]      inet6_addr_add+0x30e/0xa40
[ 4013.943342][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4013.943342][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4013.943342][   T73]      netlink_rcv_skb+0x130/0x360
[ 4013.943342][   T73]      netlink_unicast+0x449/0x710
[ 4013.943342][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4013.943342][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4013.943342][   T73]      ___sys_sendmsg+0xee/0x170
[ 4013.943342][   T73]      __sys_sendmsg+0xcd/0x170
[ 4013.943342][   T73]      do_syscall_64+0xc6/0x1e0
[ 4013.943342][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4013.943342][   T73] 
[ 4013.945605][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4013.945605][   T73]      netdev_get_by_index+0x5e/0x80
[ 4013.945605][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4013.945605][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4013.945605][   T73]      ip6_route_add+0x1c/0x140
[ 4013.945605][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4013.945605][   T73]      addrconf_add_dev+0xe2/0x170
[ 4013.945605][   T73]      inet6_addr_add+0x12f/0xa40
[ 4013.945605][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4013.945605][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4013.945605][   T73]      netlink_rcv_skb+0x130/0x360
[ 4013.945605][   T73]      netlink_unicast+0x449/0x710
[ 4013.945605][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4013.945605][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4013.945605][   T73]      ___sys_sendmsg+0xee/0x170
[ 4013.945605][   T73]      __sys_sendmsg+0xcd/0x170
[ 4013.945605][   T73]      do_syscall_64+0xc6/0x1e0
[ 4013.945605][   T73] 
[ 4013.947850][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4013.947850][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4013.947850][   T73]      ipv6_find_idev+0x102/0x170
[ 4013.947850][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4013.947850][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4013.947850][   T73]      netlink_rcv_skb+0x130/0x360
[ 4013.947850][   T73]      netlink_unicast+0x449/0x710
[ 4013.947850][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4013.947850][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4013.947850][   T73]      ___sys_sendmsg+0xee/0x170
[ 4013.947850][   T73]      __sys_sendmsg+0xcd/0x170
[ 4013.947850][   T73]      do_syscall_64+0xc6/0x1e0
[ 4013.947850][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4013.947850][   T73] 
[ 4013.949580][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4013.949580][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4013.949580][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4013.949580][   T73]      ipv6_find_idev+0x102/0x170
[ 4013.949580][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4013.949580][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4013.949580][   T73]      netlink_rcv_skb+0x130/0x360
[ 4013.949580][   T73]      netlink_unicast+0x449/0x710
[ 4013.949580][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4013.949580][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4013.949580][   T73]      ___sys_sendmsg+0xee/0x170
[ 4013.949580][   T73]      __sys_sendmsg+0xcd/0x170
[ 4013.949580][   T73]      do_syscall_64+0xc6/0x1e0
[ 4013.949580][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4013.949580][   T73] 
[ 4013.951528][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4013.951821][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4013.951821][   T73]      netdev_get_by_index+0x5e/0x80
[ 4013.951821][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4013.951821][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4013.951821][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4013.951821][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4013.951821][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4013.951821][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4013.951821][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4013.951821][   T73]      addrconf_dad_begin+0x310/0x670
[ 4013.951821][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4013.951821][   T73]      process_one_work+0x84d/0x18a0
[ 4013.951821][   T73]      worker_thread+0x587/0xd30
[ 4013.951821][   T73]      kthread+0x28a/0x350
[ 4013.951821][   T73]      ret_from_fork+0x31/0x70
[ 4013.951821][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4013.951821][   T73] 
[ 4013.953988][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4013.953988][   T73]      netdev_get_by_index+0x5e/0x80
[ 4013.953988][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4013.953988][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4013.953988][   T73]      ip6_route_add+0x1c/0x140
[ 4013.953988][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4013.953988][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4013.953988][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4013.953988][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4013.953988][   T73]      netlink_rcv_skb+0x130/0x360
[ 4013.953988][   T73]      netlink_unicast+0x449/0x710
[ 4013.953988][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4013.953988][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4013.953988][   T73]      ___sys_sendmsg+0xee/0x170
[ 4013.953988][   T73]      __sys_sendmsg+0xcd/0x170
[ 4013.953988][   T73]      do_syscall_64+0xc6/0x1e0
[ 4013.953988][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4013.953988][   T73] 
[ 4013.956261][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4013.956261][   T73]      netdev_get_by_index+0x5e/0x80
[ 4013.956261][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4013.956261][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4013.956261][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4013.956261][   T73]      ipv6_add_addr+0x411/0x2000
[ 4013.956261][   T73]      inet6_addr_add+0x30e/0xa40
[ 4013.956261][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4013.956261][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4013.956261][   T73]      netlink_rcv_skb+0x130/0x360
[ 4013.956261][   T73]      netlink_unicast+0x449/0x710
[ 4013.956261][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4013.956261][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4013.956261][   T73]      ___sys_sendmsg+0xee/0x170
[ 4013.956261][   T73]      __sys_sendmsg+0xcd/0x170
[ 4013.956261][   T73]      do_syscall_64+0xc6/0x1e0
[ 4013.956261][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4013.956261][   T73] 
[ 4013.958449][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4013.958449][   T73]      netdev_get_by_index+0x5e/0x80
[ 4013.958449][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4013.958449][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4013.958449][   T73]      ip6_route_add+0x1c/0x140
[ 4013.958449][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4013.958449][   T73]      addrconf_add_dev+0xe2/0x170
[ 4013.958449][   T73]      inet6_addr_add+0x12f/0xa40
[ 4013.958449][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4013.958449][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4013.958449][   T73]      netlink_rcv_skb+0x130/0x360
[ 4013.958449][   T73]      netlink_unicast+0x449/0x710
[ 4013.958449][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4013.958449][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4013.958449][   T73]      ___sys_sendmsg+0xee/0x170
[ 4013.958449][   T73]      __sys_sendmsg+0xcd/0x170
[ 4013.958449][   T73]      do_syscall_64+0xc6/0x1e0
[ 4013.958449][   T73] 
[ 4013.960751][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4013.960751][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4013.960751][   T73]      ipv6_find_idev+0x102/0x170
[ 4013.960751][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4013.960751][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4013.960751][   T73]      netlink_rcv_skb+0x130/0x360
[ 4013.960751][   T73]      netlink_unicast+0x449/0x710
[ 4013.960751][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4013.960751][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4013.960751][   T73]      ___sys_sendmsg+0xee/0x170
[ 4013.960751][   T73]      __sys_sendmsg+0xcd/0x170
[ 4013.960751][   T73]      do_syscall_64+0xc6/0x1e0
[ 4013.960751][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4013.960751][   T73] 
[ 4013.962489][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4013.962489][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4013.962489][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4013.962489][   T73]      ipv6_find_idev+0x102/0x170
[ 4013.962489][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4013.962489][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4013.962489][   T73]      netlink_rcv_skb+0x130/0x360
[ 4013.962489][   T73]      netlink_unicast+0x449/0x710
[ 4013.962489][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4013.962489][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4013.962489][   T73]      ___sys_sendmsg+0xee/0x170
[ 4013.962489][   T73]      __sys_sendmsg+0xcd/0x170
[ 4013.962489][   T73]      do_syscall_64+0xc6/0x1e0
[ 4013.962489][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4013.962489][   T73] 
[ 4024.119761][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4024.120315][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4024.120315][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4024.120315][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4024.120315][   T73]      fib6_nh_init+0xa22/0x1580
[ 4024.120315][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4024.120315][   T73]      ip6_route_add+0x1c/0x140
[ 4024.120315][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4024.120315][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4024.120315][   T73]      netlink_rcv_skb+0x130/0x360
[ 4024.120315][   T73]      netlink_unicast+0x449/0x710
[ 4024.120315][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4024.120315][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4024.120315][   T73]      ___sys_sendmsg+0xee/0x170
[ 4024.120315][   T73]      __sys_sendmsg+0xcd/0x170
[ 4024.120315][   T73]      do_syscall_64+0xc6/0x1e0
[ 4024.120315][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4024.120315][   T73] 
[ 4024.122240][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4024.122240][   T73]      dst_init+0x84/0x4a0
[ 4024.122240][   T73]      dst_alloc+0x97/0x150
[ 4024.122240][   T73]      ip6_dst_alloc+0x23/0x90
[ 4024.122240][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4024.122240][   T73]      ip6_pol_route+0x56f/0x840
[ 4024.122240][   T73]      fib6_rule_lookup+0x456/0x630
[ 4024.122240][   T73]      ip6_route_input+0x59c/0xa50
[ 4024.122240][   T73]      ipv6_rcv+0x397/0x810
[ 4024.122240][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4024.122240][   T73]      process_backlog+0x101/0x620
[ 4024.122240][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4024.122240][   T73]      net_rx_action+0x495/0xbe0
[ 4024.122240][   T73]      __do_softirq+0x1b5/0x7f6
[ 4024.122240][   T73] 
[ 4024.123902][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4024.123902][   T73]      netdev_get_by_index+0x5e/0x80
[ 4024.123902][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4024.123902][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4024.123902][   T73]      ip6_route_add+0x1c/0x140
[ 4024.123902][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4024.123902][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4024.123902][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4024.123902][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4024.123902][   T73]      netlink_rcv_skb+0x130/0x360
[ 4024.123902][   T73]      netlink_unicast+0x449/0x710
[ 4024.123902][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4024.123902][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4024.123902][   T73]      ___sys_sendmsg+0xee/0x170
[ 4024.123902][   T73]      __sys_sendmsg+0xcd/0x170
[ 4024.123902][   T73]      do_syscall_64+0xc6/0x1e0
[ 4024.123902][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4024.123902][   T73] 
[ 4024.125946][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4024.125946][   T73]      netdev_get_by_index+0x5e/0x80
[ 4024.125946][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4024.125946][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4024.125946][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4024.125946][   T73]      ipv6_add_addr+0x411/0x2000
[ 4024.125946][   T73]      inet6_addr_add+0x30e/0xa40
[ 4024.125946][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4024.125946][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4024.125946][   T73]      netlink_rcv_skb+0x130/0x360
[ 4024.125946][   T73]      netlink_unicast+0x449/0x710
[ 4024.125946][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4024.125946][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4024.125946][   T73]      ___sys_sendmsg+0xee/0x170
[ 4024.125946][   T73]      __sys_sendmsg+0xcd/0x170
[ 4024.125946][   T73]      do_syscall_64+0xc6/0x1e0
[ 4024.125946][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4024.125946][   T73] 
[ 4024.127965][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4024.127965][   T73]      netdev_get_by_index+0x5e/0x80
[ 4024.127965][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4024.127965][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4024.127965][   T73]      ip6_route_add+0x1c/0x140
[ 4024.127965][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4024.127965][   T73]      addrconf_add_dev+0xe2/0x170
[ 4024.127965][   T73]      inet6_addr_add+0x12f/0xa40
[ 4024.127965][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4024.127965][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4024.127965][   T73]      netlink_rcv_skb+0x130/0x360
[ 4024.127965][   T73]      netlink_unicast+0x449/0x710
[ 4024.127965][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4024.127965][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4024.127965][   T73]      ___sys_sendmsg+0xee/0x170
[ 4024.127965][   T73]      __sys_sendmsg+0xcd/0x170
[ 4024.127965][   T73]      do_syscall_64+0xc6/0x1e0
[ 4024.127965][   T73] 
[ 4024.129959][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4024.129959][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4024.129959][   T73]      ipv6_find_idev+0x102/0x170
[ 4024.129959][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4024.129959][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4024.129959][   T73]      netlink_rcv_skb+0x130/0x360
[ 4024.129959][   T73]      netlink_unicast+0x449/0x710
[ 4024.129959][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4024.129959][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4024.129959][   T73]      ___sys_sendmsg+0xee/0x170
[ 4024.129959][   T73]      __sys_sendmsg+0xcd/0x170
[ 4024.129959][   T73]      do_syscall_64+0xc6/0x1e0
[ 4024.129959][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4024.129959][   T73] 
[ 4024.132258][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4024.132258][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4024.132258][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4024.132258][   T73]      ipv6_find_idev+0x102/0x170
[ 4024.132258][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4024.132258][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4024.132258][   T73]      netlink_rcv_skb+0x130/0x360
[ 4024.132258][   T73]      netlink_unicast+0x449/0x710
[ 4024.132258][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4024.132258][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4024.132258][   T73]      ___sys_sendmsg+0xee/0x170
[ 4024.132258][   T73]      __sys_sendmsg+0xcd/0x170
[ 4024.132258][   T73]      do_syscall_64+0xc6/0x1e0
[ 4024.132258][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4024.132258][   T73] 
[ 4024.134988][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4024.135440][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4024.135440][   T73]      netdev_get_by_index+0x5e/0x80
[ 4024.135440][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4024.135440][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4024.135440][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4024.135440][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4024.135440][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4024.135440][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4024.135440][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4024.135440][   T73]      addrconf_dad_begin+0x310/0x670
[ 4024.135440][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4024.135440][   T73]      process_one_work+0x84d/0x18a0
[ 4024.135440][   T73]      worker_thread+0x587/0xd30
[ 4024.135440][   T73]      kthread+0x28a/0x350
[ 4024.135440][   T73]      ret_from_fork+0x31/0x70
[ 4024.135440][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4024.135440][   T73] 
[ 4024.138494][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4024.138494][   T73]      netdev_get_by_index+0x5e/0x80
[ 4024.138494][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4024.138494][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4024.138494][   T73]      ip6_route_add+0x1c/0x140
[ 4024.138494][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4024.138494][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4024.138494][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4024.138494][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4024.138494][   T73]      netlink_rcv_skb+0x130/0x360
[ 4024.138494][   T73]      netlink_unicast+0x449/0x710
[ 4024.138494][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4024.138494][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4024.138494][   T73]      ___sys_sendmsg+0xee/0x170
[ 4024.138494][   T73]      __sys_sendmsg+0xcd/0x170
[ 4024.138494][   T73]      do_syscall_64+0xc6/0x1e0
[ 4024.138494][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4024.138494][   T73] 
[ 4024.141694][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4024.141694][   T73]      netdev_get_by_index+0x5e/0x80
[ 4024.141694][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4024.141694][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4024.141694][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4024.141694][   T73]      ipv6_add_addr+0x411/0x2000
[ 4024.141694][   T73]      inet6_addr_add+0x30e/0xa40
[ 4024.141694][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4024.141694][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4024.141694][   T73]      netlink_rcv_skb+0x130/0x360
[ 4024.141694][   T73]      netlink_unicast+0x449/0x710
[ 4024.141694][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4024.141694][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4024.141694][   T73]      ___sys_sendmsg+0xee/0x170
[ 4024.141694][   T73]      __sys_sendmsg+0xcd/0x170
[ 4024.141694][   T73]      do_syscall_64+0xc6/0x1e0
[ 4024.141694][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4024.141694][   T73] 
[ 4024.144874][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4024.144874][   T73]      netdev_get_by_index+0x5e/0x80
[ 4024.144874][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4024.144874][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4024.144874][   T73]      ip6_route_add+0x1c/0x140
[ 4024.144874][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4024.144874][   T73]      addrconf_add_dev+0xe2/0x170
[ 4024.144874][   T73]      inet6_addr_add+0x12f/0xa40
[ 4024.144874][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4024.144874][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4024.144874][   T73]      netlink_rcv_skb+0x130/0x360
[ 4024.144874][   T73]      netlink_unicast+0x449/0x710
[ 4024.144874][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4024.144874][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4024.144874][   T73]      ___sys_sendmsg+0xee/0x170
[ 4024.144874][   T73]      __sys_sendmsg+0xcd/0x170
[ 4024.144874][   T73]      do_syscall_64+0xc6/0x1e0
[ 4024.144874][   T73] 
[ 4024.147768][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4024.147768][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4024.147768][   T73]      ipv6_find_idev+0x102/0x170
[ 4024.147768][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4024.147768][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4024.147768][   T73]      netlink_rcv_skb+0x130/0x360
[ 4024.147768][   T73]      netlink_unicast+0x449/0x710
[ 4024.147768][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4024.147768][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4024.147768][   T73]      ___sys_sendmsg+0xee/0x170
[ 4024.147768][   T73]      __sys_sendmsg+0xcd/0x170
[ 4024.147768][   T73]      do_syscall_64+0xc6/0x1e0
[ 4024.147768][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4024.147768][   T73] 
[ 4024.149350][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4024.149350][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4024.149350][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4024.149350][   T73]      ipv6_find_idev+0x102/0x170
[ 4024.149350][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4024.149350][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4024.149350][   T73]      netlink_rcv_skb+0x130/0x360
[ 4024.149350][   T73]      netlink_unicast+0x449/0x710
[ 4024.149350][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4024.149350][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4024.149350][   T73]      ___sys_sendmsg+0xee/0x170
[ 4024.149350][   T73]      __sys_sendmsg+0xcd/0x170
[ 4024.149350][   T73]      do_syscall_64+0xc6/0x1e0
[ 4024.149350][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4024.149350][   T73] 
[ 4024.151069][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4024.151372][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4024.151372][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4024.151372][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4024.151372][   T73]      fib6_nh_init+0xa22/0x1580
[ 4024.151372][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4024.151372][   T73]      ip6_route_add+0x1c/0x140
[ 4024.151372][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4024.151372][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4024.151372][   T73]      netlink_rcv_skb+0x130/0x360
[ 4024.151372][   T73]      netlink_unicast+0x449/0x710
[ 4024.151372][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4024.151372][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4024.151372][   T73]      ___sys_sendmsg+0xee/0x170
[ 4024.151372][   T73]      __sys_sendmsg+0xcd/0x170
[ 4024.151372][   T73]      do_syscall_64+0xc6/0x1e0
[ 4024.151372][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4024.151372][   T73] 
[ 4024.154206][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4024.154206][   T73]      dst_init+0x84/0x4a0
[ 4024.154206][   T73]      dst_alloc+0x97/0x150
[ 4024.154206][   T73]      ip6_dst_alloc+0x23/0x90
[ 4024.154206][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4024.154206][   T73]      ip6_pol_route+0x56f/0x840
[ 4024.154206][   T73]      fib6_rule_lookup+0x456/0x630
[ 4024.154206][   T73]      ip6_route_input+0x59c/0xa50
[ 4024.154206][   T73]      ipv6_rcv+0x397/0x810
[ 4024.154206][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4024.154206][   T73]      process_backlog+0x101/0x620
[ 4024.154206][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4024.154206][   T73]      net_rx_action+0x495/0xbe0
[ 4024.154206][   T73]      __do_softirq+0x1b5/0x7f6
[ 4024.154206][   T73] 
[ 4024.156115][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4024.156115][   T73]      netdev_get_by_index+0x5e/0x80
[ 4024.156115][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4024.156115][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4024.156115][   T73]      ip6_route_add+0x1c/0x140
[ 4024.156115][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4024.156115][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4024.156115][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4024.156115][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4024.156115][   T73]      netlink_rcv_skb+0x130/0x360
[ 4024.156115][   T73]      netlink_unicast+0x449/0x710
[ 4024.156115][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4024.156115][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4024.156115][   T73]      ___sys_sendmsg+0xee/0x170
[ 4024.156115][   T73]      __sys_sendmsg+0xcd/0x170
[ 4024.156115][   T73]      do_syscall_64+0xc6/0x1e0
[ 4024.156115][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4024.156115][   T73] 
[ 4024.158368][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4024.158368][   T73]      netdev_get_by_index+0x5e/0x80
[ 4024.158368][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4024.158368][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4024.158368][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4024.158368][   T73]      ipv6_add_addr+0x411/0x2000
[ 4024.158368][   T73]      inet6_addr_add+0x30e/0xa40
[ 4024.158368][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4024.158368][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4024.158368][   T73]      netlink_rcv_skb+0x130/0x360
[ 4024.158368][   T73]      netlink_unicast+0x449/0x710
[ 4024.158368][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4024.158368][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4024.158368][   T73]      ___sys_sendmsg+0xee/0x170
[ 4024.158368][   T73]      __sys_sendmsg+0xcd/0x170
[ 4024.158368][   T73]      do_syscall_64+0xc6/0x1e0
[ 4024.158368][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4024.158368][   T73] 
[ 4024.160623][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4024.160623][   T73]      netdev_get_by_index+0x5e/0x80
[ 4024.160623][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4024.160623][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4024.160623][   T73]      ip6_route_add+0x1c/0x140
[ 4024.160623][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4024.160623][   T73]      addrconf_add_dev+0xe2/0x170
[ 4024.160623][   T73]      inet6_addr_add+0x12f/0xa40
[ 4024.160623][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4024.160623][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4024.160623][   T73]      netlink_rcv_skb+0x130/0x360
[ 4024.160623][   T73]      netlink_unicast+0x449/0x710
[ 4024.160623][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4024.160623][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4024.160623][   T73]      ___sys_sendmsg+0xee/0x170
[ 4024.160623][   T73]      __sys_sendmsg+0xcd/0x170
[ 4024.160623][   T73]      do_syscall_64+0xc6/0x1e0
[ 4024.160623][   T73] 
[ 4024.162852][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4024.162852][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4024.162852][   T73]      ipv6_find_idev+0x102/0x170
[ 4024.162852][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4024.162852][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4024.162852][   T73]      netlink_rcv_skb+0x130/0x360
[ 4024.162852][   T73]      netlink_unicast+0x449/0x710
[ 4024.162852][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4024.162852][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4024.162852][   T73]      ___sys_sendmsg+0xee/0x170
[ 4024.162852][   T73]      __sys_sendmsg+0xcd/0x170
[ 4024.162852][   T73]      do_syscall_64+0xc6/0x1e0
[ 4024.162852][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4024.162852][   T73] 
[ 4024.164580][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4024.164580][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4024.164580][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4024.164580][   T73]      ipv6_find_idev+0x102/0x170
[ 4024.164580][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4024.164580][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4024.164580][   T73]      netlink_rcv_skb+0x130/0x360
[ 4024.164580][   T73]      netlink_unicast+0x449/0x710
[ 4024.164580][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4024.164580][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4024.164580][   T73]      ___sys_sendmsg+0xee/0x170
[ 4024.164580][   T73]      __sys_sendmsg+0xcd/0x170
[ 4024.164580][   T73]      do_syscall_64+0xc6/0x1e0
[ 4024.164580][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4024.164580][   T73] 
[ 4024.166535][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4024.167255][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4024.167255][   T73]      netdev_get_by_index+0x5e/0x80
[ 4024.167255][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4024.167255][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4024.167255][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4024.167255][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4024.167255][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4024.167255][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4024.167255][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4024.167255][   T73]      addrconf_dad_begin+0x310/0x670
[ 4024.167255][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4024.167255][   T73]      process_one_work+0x84d/0x18a0
[ 4024.167255][   T73]      worker_thread+0x587/0xd30
[ 4024.167255][   T73]      kthread+0x28a/0x350
[ 4024.167255][   T73]      ret_from_fork+0x31/0x70
[ 4024.167255][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4024.167255][   T73] 
[ 4024.169178][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4024.169178][   T73]      netdev_get_by_index+0x5e/0x80
[ 4024.169178][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4024.169178][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4024.169178][   T73]      ip6_route_add+0x1c/0x140
[ 4024.169178][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4024.169178][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4024.169178][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4024.169178][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4024.169178][   T73]      netlink_rcv_skb+0x130/0x360
[ 4024.169178][   T73]      netlink_unicast+0x449/0x710
[ 4024.169178][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4024.169178][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4024.169178][   T73]      ___sys_sendmsg+0xee/0x170
[ 4024.169178][   T73]      __sys_sendmsg+0xcd/0x170
[ 4024.169178][   T73]      do_syscall_64+0xc6/0x1e0
[ 4024.169178][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4024.169178][   T73] 
[ 4024.171306][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4024.171306][   T73]      netdev_get_by_index+0x5e/0x80
[ 4024.171306][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4024.171306][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4024.171306][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4024.171306][   T73]      ipv6_add_addr+0x411/0x2000
[ 4024.171306][   T73]      inet6_addr_add+0x30e/0xa40
[ 4024.171306][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4024.171306][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4024.171306][   T73]      netlink_rcv_skb+0x130/0x360
[ 4024.171306][   T73]      netlink_unicast+0x449/0x710
[ 4024.171306][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4024.171306][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4024.171306][   T73]      ___sys_sendmsg+0xee/0x170
[ 4024.171306][   T73]      __sys_sendmsg+0xcd/0x170
[ 4024.171306][   T73]      do_syscall_64+0xc6/0x1e0
[ 4024.171306][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4024.171306][   T73] 
[ 4024.173560][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4024.173560][   T73]      netdev_get_by_index+0x5e/0x80
[ 4024.173560][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4024.173560][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4024.173560][   T73]      ip6_route_add+0x1c/0x140
[ 4024.173560][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4024.173560][   T73]      addrconf_add_dev+0xe2/0x170
[ 4024.173560][   T73]      inet6_addr_add+0x12f/0xa40
[ 4024.173560][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4024.173560][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4024.173560][   T73]      netlink_rcv_skb+0x130/0x360
[ 4024.173560][   T73]      netlink_unicast+0x449/0x710
[ 4024.173560][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4024.173560][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4024.173560][   T73]      ___sys_sendmsg+0xee/0x170
[ 4024.173560][   T73]      __sys_sendmsg+0xcd/0x170
[ 4024.173560][   T73]      do_syscall_64+0xc6/0x1e0
[ 4024.173560][   T73] 
[ 4024.175729][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4024.175729][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4024.175729][   T73]      ipv6_find_idev+0x102/0x170
[ 4024.175729][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4024.175729][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4024.175729][   T73]      netlink_rcv_skb+0x130/0x360
[ 4024.175729][   T73]      netlink_unicast+0x449/0x710
[ 4024.175729][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4024.175729][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4024.175729][   T73]      ___sys_sendmsg+0xee/0x170
[ 4024.175729][   T73]      __sys_sendmsg+0xcd/0x170
[ 4024.175729][   T73]      do_syscall_64+0xc6/0x1e0
[ 4024.175729][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4024.175729][   T73] 
[ 4024.177524][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4024.177524][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4024.177524][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4024.177524][   T73]      ipv6_find_idev+0x102/0x170
[ 4024.177524][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4024.177524][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4024.177524][   T73]      netlink_rcv_skb+0x130/0x360
[ 4024.177524][   T73]      netlink_unicast+0x449/0x710
[ 4024.177524][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4024.177524][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4024.177524][   T73]      ___sys_sendmsg+0xee/0x170
[ 4024.177524][   T73]      __sys_sendmsg+0xcd/0x170
[ 4024.177524][   T73]      do_syscall_64+0xc6/0x1e0
[ 4024.177524][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4024.177524][   T73] 
[ 4034.415724][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4034.416249][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4034.416249][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4034.416249][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4034.416249][   T73]      fib6_nh_init+0xa22/0x1580
[ 4034.416249][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4034.416249][   T73]      ip6_route_add+0x1c/0x140
[ 4034.416249][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4034.416249][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4034.416249][   T73]      netlink_rcv_skb+0x130/0x360
[ 4034.416249][   T73]      netlink_unicast+0x449/0x710
[ 4034.416249][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4034.416249][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4034.416249][   T73]      ___sys_sendmsg+0xee/0x170
[ 4034.416249][   T73]      __sys_sendmsg+0xcd/0x170
[ 4034.416249][   T73]      do_syscall_64+0xc6/0x1e0
[ 4034.416249][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4034.416249][   T73] 
[ 4034.418168][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4034.418168][   T73]      dst_init+0x84/0x4a0
[ 4034.418168][   T73]      dst_alloc+0x97/0x150
[ 4034.418168][   T73]      ip6_dst_alloc+0x23/0x90
[ 4034.418168][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4034.418168][   T73]      ip6_pol_route+0x56f/0x840
[ 4034.418168][   T73]      fib6_rule_lookup+0x456/0x630
[ 4034.418168][   T73]      ip6_route_input+0x59c/0xa50
[ 4034.418168][   T73]      ipv6_rcv+0x397/0x810
[ 4034.418168][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4034.418168][   T73]      process_backlog+0x101/0x620
[ 4034.418168][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4034.418168][   T73]      net_rx_action+0x495/0xbe0
[ 4034.418168][   T73]      __do_softirq+0x1b5/0x7f6
[ 4034.418168][   T73] 
[ 4034.419819][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4034.419819][   T73]      netdev_get_by_index+0x5e/0x80
[ 4034.419819][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4034.419819][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4034.419819][   T73]      ip6_route_add+0x1c/0x140
[ 4034.419819][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4034.419819][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4034.419819][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4034.419819][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4034.419819][   T73]      netlink_rcv_skb+0x130/0x360
[ 4034.419819][   T73]      netlink_unicast+0x449/0x710
[ 4034.419819][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4034.419819][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4034.419819][   T73]      ___sys_sendmsg+0xee/0x170
[ 4034.419819][   T73]      __sys_sendmsg+0xcd/0x170
[ 4034.419819][   T73]      do_syscall_64+0xc6/0x1e0
[ 4034.419819][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4034.419819][   T73] 
[ 4034.421837][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4034.421837][   T73]      netdev_get_by_index+0x5e/0x80
[ 4034.421837][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4034.421837][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4034.421837][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4034.421837][   T73]      ipv6_add_addr+0x411/0x2000
[ 4034.421837][   T73]      inet6_addr_add+0x30e/0xa40
[ 4034.421837][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4034.421837][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4034.421837][   T73]      netlink_rcv_skb+0x130/0x360
[ 4034.421837][   T73]      netlink_unicast+0x449/0x710
[ 4034.421837][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4034.421837][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4034.421837][   T73]      ___sys_sendmsg+0xee/0x170
[ 4034.421837][   T73]      __sys_sendmsg+0xcd/0x170
[ 4034.421837][   T73]      do_syscall_64+0xc6/0x1e0
[ 4034.421837][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4034.421837][   T73] 
[ 4034.423877][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4034.423877][   T73]      netdev_get_by_index+0x5e/0x80
[ 4034.423877][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4034.423877][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4034.423877][   T73]      ip6_route_add+0x1c/0x140
[ 4034.423877][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4034.423877][   T73]      addrconf_add_dev+0xe2/0x170
[ 4034.423877][   T73]      inet6_addr_add+0x12f/0xa40
[ 4034.423877][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4034.423877][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4034.423877][   T73]      netlink_rcv_skb+0x130/0x360
[ 4034.423877][   T73]      netlink_unicast+0x449/0x710
[ 4034.423877][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4034.423877][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4034.423877][   T73]      ___sys_sendmsg+0xee/0x170
[ 4034.423877][   T73]      __sys_sendmsg+0xcd/0x170
[ 4034.423877][   T73]      do_syscall_64+0xc6/0x1e0
[ 4034.423877][   T73] 
[ 4034.425868][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4034.425868][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4034.425868][   T73]      ipv6_find_idev+0x102/0x170
[ 4034.425868][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4034.425868][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4034.425868][   T73]      netlink_rcv_skb+0x130/0x360
[ 4034.425868][   T73]      netlink_unicast+0x449/0x710
[ 4034.425868][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4034.425868][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4034.425868][   T73]      ___sys_sendmsg+0xee/0x170
[ 4034.425868][   T73]      __sys_sendmsg+0xcd/0x170
[ 4034.425868][   T73]      do_syscall_64+0xc6/0x1e0
[ 4034.425868][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4034.425868][   T73] 
[ 4034.427421][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4034.427421][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4034.427421][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4034.427421][   T73]      ipv6_find_idev+0x102/0x170
[ 4034.427421][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4034.427421][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4034.427421][   T73]      netlink_rcv_skb+0x130/0x360
[ 4034.427421][   T73]      netlink_unicast+0x449/0x710
[ 4034.427421][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4034.427421][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4034.427421][   T73]      ___sys_sendmsg+0xee/0x170
[ 4034.427421][   T73]      __sys_sendmsg+0xcd/0x170
[ 4034.427421][   T73]      do_syscall_64+0xc6/0x1e0
[ 4034.427421][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4034.427421][   T73] 
[ 4034.429162][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4034.429457][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4034.429457][   T73]      netdev_get_by_index+0x5e/0x80
[ 4034.429457][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4034.429457][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4034.429457][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4034.429457][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4034.429457][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4034.429457][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4034.429457][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4034.429457][   T73]      addrconf_dad_begin+0x310/0x670
[ 4034.429457][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4034.429457][   T73]      process_one_work+0x84d/0x18a0
[ 4034.429457][   T73]      worker_thread+0x587/0xd30
[ 4034.429457][   T73]      kthread+0x28a/0x350
[ 4034.429457][   T73]      ret_from_fork+0x31/0x70
[ 4034.429457][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4034.429457][   T73] 
[ 4034.431392][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4034.431392][   T73]      netdev_get_by_index+0x5e/0x80
[ 4034.431392][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4034.431392][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4034.431392][   T73]      ip6_route_add+0x1c/0x140
[ 4034.431392][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4034.431392][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4034.431392][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4034.431392][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4034.431392][   T73]      netlink_rcv_skb+0x130/0x360
[ 4034.431392][   T73]      netlink_unicast+0x449/0x710
[ 4034.431392][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4034.431392][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4034.431392][   T73]      ___sys_sendmsg+0xee/0x170
[ 4034.431392][   T73]      __sys_sendmsg+0xcd/0x170
[ 4034.431392][   T73]      do_syscall_64+0xc6/0x1e0
[ 4034.431392][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4034.431392][   T73] 
[ 4034.433399][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4034.433399][   T73]      netdev_get_by_index+0x5e/0x80
[ 4034.433399][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4034.433399][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4034.433399][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4034.433399][   T73]      ipv6_add_addr+0x411/0x2000
[ 4034.433399][   T73]      inet6_addr_add+0x30e/0xa40
[ 4034.433399][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4034.433399][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4034.433399][   T73]      netlink_rcv_skb+0x130/0x360
[ 4034.433399][   T73]      netlink_unicast+0x449/0x710
[ 4034.433399][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4034.433399][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4034.433399][   T73]      ___sys_sendmsg+0xee/0x170
[ 4034.433399][   T73]      __sys_sendmsg+0xcd/0x170
[ 4034.433399][   T73]      do_syscall_64+0xc6/0x1e0
[ 4034.433399][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4034.433399][   T73] 
[ 4034.435410][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4034.435410][   T73]      netdev_get_by_index+0x5e/0x80
[ 4034.435410][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4034.435410][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4034.435410][   T73]      ip6_route_add+0x1c/0x140
[ 4034.435410][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4034.435410][   T73]      addrconf_add_dev+0xe2/0x170
[ 4034.435410][   T73]      inet6_addr_add+0x12f/0xa40
[ 4034.435410][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4034.435410][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4034.435410][   T73]      netlink_rcv_skb+0x130/0x360
[ 4034.435410][   T73]      netlink_unicast+0x449/0x710
[ 4034.435410][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4034.435410][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4034.435410][   T73]      ___sys_sendmsg+0xee/0x170
[ 4034.435410][   T73]      __sys_sendmsg+0xcd/0x170
[ 4034.435410][   T73]      do_syscall_64+0xc6/0x1e0
[ 4034.435410][   T73] 
[ 4034.437444][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4034.437444][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4034.437444][   T73]      ipv6_find_idev+0x102/0x170
[ 4034.437444][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4034.437444][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4034.437444][   T73]      netlink_rcv_skb+0x130/0x360
[ 4034.437444][   T73]      netlink_unicast+0x449/0x710
[ 4034.437444][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4034.437444][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4034.437444][   T73]      ___sys_sendmsg+0xee/0x170
[ 4034.437444][   T73]      __sys_sendmsg+0xcd/0x170
[ 4034.437444][   T73]      do_syscall_64+0xc6/0x1e0
[ 4034.437444][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4034.437444][   T73] 
[ 4034.438998][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4034.438998][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4034.438998][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4034.438998][   T73]      ipv6_find_idev+0x102/0x170
[ 4034.438998][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4034.438998][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4034.438998][   T73]      netlink_rcv_skb+0x130/0x360
[ 4034.438998][   T73]      netlink_unicast+0x449/0x710
[ 4034.438998][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4034.438998][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4034.438998][   T73]      ___sys_sendmsg+0xee/0x170
[ 4034.438998][   T73]      __sys_sendmsg+0xcd/0x170
[ 4034.438998][   T73]      do_syscall_64+0xc6/0x1e0
[ 4034.438998][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4034.438998][   T73] 
[ 4034.440707][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4034.441020][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4034.441020][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4034.441020][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4034.441020][   T73]      fib6_nh_init+0xa22/0x1580
[ 4034.441020][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4034.441020][   T73]      ip6_route_add+0x1c/0x140
[ 4034.441020][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4034.441020][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4034.441020][   T73]      netlink_rcv_skb+0x130/0x360
[ 4034.441020][   T73]      netlink_unicast+0x449/0x710
[ 4034.441020][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4034.441020][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4034.441020][   T73]      ___sys_sendmsg+0xee/0x170
[ 4034.441020][   T73]      __sys_sendmsg+0xcd/0x170
[ 4034.441020][   T73]      do_syscall_64+0xc6/0x1e0
[ 4034.441020][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4034.441020][   T73] 
[ 4034.443050][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4034.443050][   T73]      dst_init+0x84/0x4a0
[ 4034.443050][   T73]      dst_alloc+0x97/0x150
[ 4034.443050][   T73]      ip6_dst_alloc+0x23/0x90
[ 4034.443050][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4034.443050][   T73]      ip6_pol_route+0x56f/0x840
[ 4034.443050][   T73]      fib6_rule_lookup+0x456/0x630
[ 4034.443050][   T73]      ip6_route_input+0x59c/0xa50
[ 4034.443050][   T73]      ipv6_rcv+0x397/0x810
[ 4034.443050][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4034.443050][   T73]      process_backlog+0x101/0x620
[ 4034.443050][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4034.443050][   T73]      net_rx_action+0x495/0xbe0
[ 4034.443050][   T73]      __do_softirq+0x1b5/0x7f6
[ 4034.443050][   T73] 
[ 4034.444823][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4034.444823][   T73]      netdev_get_by_index+0x5e/0x80
[ 4034.444823][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4034.444823][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4034.444823][   T73]      ip6_route_add+0x1c/0x140
[ 4034.444823][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4034.444823][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4034.444823][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4034.444823][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4034.444823][   T73]      netlink_rcv_skb+0x130/0x360
[ 4034.444823][   T73]      netlink_unicast+0x449/0x710
[ 4034.444823][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4034.444823][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4034.444823][   T73]      ___sys_sendmsg+0xee/0x170
[ 4034.444823][   T73]      __sys_sendmsg+0xcd/0x170
[ 4034.444823][   T73]      do_syscall_64+0xc6/0x1e0
[ 4034.444823][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4034.444823][   T73] 
[ 4034.446974][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4034.446974][   T73]      netdev_get_by_index+0x5e/0x80
[ 4034.446974][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4034.446974][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4034.446974][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4034.446974][   T73]      ipv6_add_addr+0x411/0x2000
[ 4034.446974][   T73]      inet6_addr_add+0x30e/0xa40
[ 4034.446974][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4034.446974][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4034.446974][   T73]      netlink_rcv_skb+0x130/0x360
[ 4034.446974][   T73]      netlink_unicast+0x449/0x710
[ 4034.446974][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4034.446974][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4034.446974][   T73]      ___sys_sendmsg+0xee/0x170
[ 4034.446974][   T73]      __sys_sendmsg+0xcd/0x170
[ 4034.446974][   T73]      do_syscall_64+0xc6/0x1e0
[ 4034.446974][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4034.446974][   T73] 
[ 4034.449108][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4034.449108][   T73]      netdev_get_by_index+0x5e/0x80
[ 4034.449108][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4034.449108][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4034.449108][   T73]      ip6_route_add+0x1c/0x140
[ 4034.449108][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4034.449108][   T73]      addrconf_add_dev+0xe2/0x170
[ 4034.449108][   T73]      inet6_addr_add+0x12f/0xa40
[ 4034.449108][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4034.449108][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4034.449108][   T73]      netlink_rcv_skb+0x130/0x360
[ 4034.449108][   T73]      netlink_unicast+0x449/0x710
[ 4034.449108][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4034.449108][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4034.449108][   T73]      ___sys_sendmsg+0xee/0x170
[ 4034.449108][   T73]      __sys_sendmsg+0xcd/0x170
[ 4034.449108][   T73]      do_syscall_64+0xc6/0x1e0
[ 4034.449108][   T73] 
[ 4034.451733][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4034.451733][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4034.451733][   T73]      ipv6_find_idev+0x102/0x170
[ 4034.451733][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4034.451733][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4034.451733][   T73]      netlink_rcv_skb+0x130/0x360
[ 4034.451733][   T73]      netlink_unicast+0x449/0x710
[ 4034.451733][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4034.451733][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4034.451733][   T73]      ___sys_sendmsg+0xee/0x170
[ 4034.451733][   T73]      __sys_sendmsg+0xcd/0x170
[ 4034.451733][   T73]      do_syscall_64+0xc6/0x1e0
[ 4034.451733][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4034.451733][   T73] 
[ 4034.453350][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4034.453350][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4034.453350][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4034.453350][   T73]      ipv6_find_idev+0x102/0x170
[ 4034.453350][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4034.453350][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4034.453350][   T73]      netlink_rcv_skb+0x130/0x360
[ 4034.453350][   T73]      netlink_unicast+0x449/0x710
[ 4034.453350][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4034.453350][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4034.453350][   T73]      ___sys_sendmsg+0xee/0x170
[ 4034.453350][   T73]      __sys_sendmsg+0xcd/0x170
[ 4034.453350][   T73]      do_syscall_64+0xc6/0x1e0
[ 4034.453350][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4034.453350][   T73] 
[ 4034.455178][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4034.455456][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4034.455456][   T73]      netdev_get_by_index+0x5e/0x80
[ 4034.455456][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4034.455456][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4034.455456][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4034.455456][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4034.455456][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4034.455456][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4034.455456][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4034.455456][   T73]      addrconf_dad_begin+0x310/0x670
[ 4034.455456][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4034.455456][   T73]      process_one_work+0x84d/0x18a0
[ 4034.455456][   T73]      worker_thread+0x587/0xd30
[ 4034.455456][   T73]      kthread+0x28a/0x350
[ 4034.455456][   T73]      ret_from_fork+0x31/0x70
[ 4034.455456][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4034.455456][   T73] 
[ 4034.457514][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4034.457514][   T73]      netdev_get_by_index+0x5e/0x80
[ 4034.457514][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4034.457514][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4034.457514][   T73]      ip6_route_add+0x1c/0x140
[ 4034.457514][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4034.457514][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4034.457514][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4034.457514][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4034.457514][   T73]      netlink_rcv_skb+0x130/0x360
[ 4034.457514][   T73]      netlink_unicast+0x449/0x710
[ 4034.457514][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4034.457514][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4034.457514][   T73]      ___sys_sendmsg+0xee/0x170
[ 4034.457514][   T73]      __sys_sendmsg+0xcd/0x170
[ 4034.457514][   T73]      do_syscall_64+0xc6/0x1e0
[ 4034.457514][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4034.457514][   T73] 
[ 4034.459666][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4034.459666][   T73]      netdev_get_by_index+0x5e/0x80
[ 4034.459666][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4034.459666][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4034.459666][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4034.459666][   T73]      ipv6_add_addr+0x411/0x2000
[ 4034.459666][   T73]      inet6_addr_add+0x30e/0xa40
[ 4034.459666][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4034.459666][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4034.459666][   T73]      netlink_rcv_skb+0x130/0x360
[ 4034.459666][   T73]      netlink_unicast+0x449/0x710
[ 4034.459666][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4034.459666][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4034.459666][   T73]      ___sys_sendmsg+0xee/0x170
[ 4034.459666][   T73]      __sys_sendmsg+0xcd/0x170
[ 4034.459666][   T73]      do_syscall_64+0xc6/0x1e0
[ 4034.459666][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4034.459666][   T73] 
[ 4034.465211][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4034.465211][   T73]      netdev_get_by_index+0x5e/0x80
[ 4034.465211][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4034.465211][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4034.465211][   T73]      ip6_route_add+0x1c/0x140
[ 4034.465211][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4034.465211][   T73]      addrconf_add_dev+0xe2/0x170
[ 4034.465211][   T73]      inet6_addr_add+0x12f/0xa40
[ 4034.465211][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4034.465211][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4034.465211][   T73]      netlink_rcv_skb+0x130/0x360
[ 4034.465211][   T73]      netlink_unicast+0x449/0x710
[ 4034.465211][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4034.465211][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4034.465211][   T73]      ___sys_sendmsg+0xee/0x170
[ 4034.465211][   T73]      __sys_sendmsg+0xcd/0x170
[ 4034.465211][   T73]      do_syscall_64+0xc6/0x1e0
[ 4034.465211][   T73] 
[ 4034.467329][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4034.467329][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4034.467329][   T73]      ipv6_find_idev+0x102/0x170
[ 4034.467329][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4034.467329][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4034.467329][   T73]      netlink_rcv_skb+0x130/0x360
[ 4034.467329][   T73]      netlink_unicast+0x449/0x710
[ 4034.467329][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4034.467329][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4034.467329][   T73]      ___sys_sendmsg+0xee/0x170
[ 4034.467329][   T73]      __sys_sendmsg+0xcd/0x170
[ 4034.467329][   T73]      do_syscall_64+0xc6/0x1e0
[ 4034.467329][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4034.467329][   T73] 
[ 4034.469006][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4034.469006][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4034.469006][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4034.469006][   T73]      ipv6_find_idev+0x102/0x170
[ 4034.469006][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4034.469006][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4034.469006][   T73]      netlink_rcv_skb+0x130/0x360
[ 4034.469006][   T73]      netlink_unicast+0x449/0x710
[ 4034.469006][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4034.469006][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4034.469006][   T73]      ___sys_sendmsg+0xee/0x170
[ 4034.469006][   T73]      __sys_sendmsg+0xcd/0x170
[ 4034.469006][   T73]      do_syscall_64+0xc6/0x1e0
[ 4034.469006][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4034.469006][   T73] 
[ 4044.711779][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4044.712194][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4044.712194][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4044.712194][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4044.712194][   T73]      fib6_nh_init+0xa22/0x1580
[ 4044.712194][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4044.712194][   T73]      ip6_route_add+0x1c/0x140
[ 4044.712194][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4044.712194][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4044.712194][   T73]      netlink_rcv_skb+0x130/0x360
[ 4044.712194][   T73]      netlink_unicast+0x449/0x710
[ 4044.712194][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4044.712194][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4044.712194][   T73]      ___sys_sendmsg+0xee/0x170
[ 4044.712194][   T73]      __sys_sendmsg+0xcd/0x170
[ 4044.712194][   T73]      do_syscall_64+0xc6/0x1e0
[ 4044.712194][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4044.712194][   T73] 
[ 4044.714098][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4044.714098][   T73]      dst_init+0x84/0x4a0
[ 4044.714098][   T73]      dst_alloc+0x97/0x150
[ 4044.714098][   T73]      ip6_dst_alloc+0x23/0x90
[ 4044.714098][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4044.714098][   T73]      ip6_pol_route+0x56f/0x840
[ 4044.714098][   T73]      fib6_rule_lookup+0x456/0x630
[ 4044.714098][   T73]      ip6_route_input+0x59c/0xa50
[ 4044.714098][   T73]      ipv6_rcv+0x397/0x810
[ 4044.714098][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4044.714098][   T73]      process_backlog+0x101/0x620
[ 4044.714098][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4044.714098][   T73]      net_rx_action+0x495/0xbe0
[ 4044.714098][   T73]      __do_softirq+0x1b5/0x7f6
[ 4044.714098][   T73] 
[ 4044.715772][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4044.715772][   T73]      netdev_get_by_index+0x5e/0x80
[ 4044.715772][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4044.715772][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4044.715772][   T73]      ip6_route_add+0x1c/0x140
[ 4044.715772][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4044.715772][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4044.715772][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4044.715772][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4044.715772][   T73]      netlink_rcv_skb+0x130/0x360
[ 4044.715772][   T73]      netlink_unicast+0x449/0x710
[ 4044.715772][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4044.715772][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4044.715772][   T73]      ___sys_sendmsg+0xee/0x170
[ 4044.715772][   T73]      __sys_sendmsg+0xcd/0x170
[ 4044.715772][   T73]      do_syscall_64+0xc6/0x1e0
[ 4044.715772][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4044.715772][   T73] 
[ 4044.717780][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4044.717780][   T73]      netdev_get_by_index+0x5e/0x80
[ 4044.717780][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4044.717780][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4044.717780][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4044.717780][   T73]      ipv6_add_addr+0x411/0x2000
[ 4044.717780][   T73]      inet6_addr_add+0x30e/0xa40
[ 4044.717780][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4044.717780][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4044.717780][   T73]      netlink_rcv_skb+0x130/0x360
[ 4044.717780][   T73]      netlink_unicast+0x449/0x710
[ 4044.717780][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4044.717780][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4044.717780][   T73]      ___sys_sendmsg+0xee/0x170
[ 4044.717780][   T73]      __sys_sendmsg+0xcd/0x170
[ 4044.717780][   T73]      do_syscall_64+0xc6/0x1e0
[ 4044.717780][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4044.717780][   T73] 
[ 4044.719778][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4044.719778][   T73]      netdev_get_by_index+0x5e/0x80
[ 4044.719778][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4044.719778][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4044.719778][   T73]      ip6_route_add+0x1c/0x140
[ 4044.719778][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4044.719778][   T73]      addrconf_add_dev+0xe2/0x170
[ 4044.719778][   T73]      inet6_addr_add+0x12f/0xa40
[ 4044.719778][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4044.719778][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4044.719778][   T73]      netlink_rcv_skb+0x130/0x360
[ 4044.719778][   T73]      netlink_unicast+0x449/0x710
[ 4044.719778][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4044.719778][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4044.719778][   T73]      ___sys_sendmsg+0xee/0x170
[ 4044.719778][   T73]      __sys_sendmsg+0xcd/0x170
[ 4044.719778][   T73]      do_syscall_64+0xc6/0x1e0
[ 4044.719778][   T73] 
[ 4044.721732][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4044.721732][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4044.721732][   T73]      ipv6_find_idev+0x102/0x170
[ 4044.721732][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4044.721732][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4044.721732][   T73]      netlink_rcv_skb+0x130/0x360
[ 4044.721732][   T73]      netlink_unicast+0x449/0x710
[ 4044.721732][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4044.721732][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4044.721732][   T73]      ___sys_sendmsg+0xee/0x170
[ 4044.721732][   T73]      __sys_sendmsg+0xcd/0x170
[ 4044.721732][   T73]      do_syscall_64+0xc6/0x1e0
[ 4044.721732][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4044.721732][   T73] 
[ 4044.723310][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4044.723310][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4044.723310][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4044.723310][   T73]      ipv6_find_idev+0x102/0x170
[ 4044.723310][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4044.723310][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4044.723310][   T73]      netlink_rcv_skb+0x130/0x360
[ 4044.723310][   T73]      netlink_unicast+0x449/0x710
[ 4044.723310][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4044.723310][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4044.723310][   T73]      ___sys_sendmsg+0xee/0x170
[ 4044.723310][   T73]      __sys_sendmsg+0xcd/0x170
[ 4044.723310][   T73]      do_syscall_64+0xc6/0x1e0
[ 4044.723310][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4044.723310][   T73] 
[ 4044.724984][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4044.725267][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4044.725267][   T73]      netdev_get_by_index+0x5e/0x80
[ 4044.725267][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4044.725267][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4044.725267][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4044.725267][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4044.725267][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4044.725267][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4044.725267][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4044.725267][   T73]      addrconf_dad_begin+0x310/0x670
[ 4044.725267][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4044.725267][   T73]      process_one_work+0x84d/0x18a0
[ 4044.725267][   T73]      worker_thread+0x587/0xd30
[ 4044.725267][   T73]      kthread+0x28a/0x350
[ 4044.725267][   T73]      ret_from_fork+0x31/0x70
[ 4044.725267][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4044.725267][   T73] 
[ 4044.727172][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4044.727172][   T73]      netdev_get_by_index+0x5e/0x80
[ 4044.727172][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4044.727172][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4044.727172][   T73]      ip6_route_add+0x1c/0x140
[ 4044.727172][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4044.727172][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4044.727172][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4044.727172][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4044.727172][   T73]      netlink_rcv_skb+0x130/0x360
[ 4044.727172][   T73]      netlink_unicast+0x449/0x710
[ 4044.727172][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4044.727172][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4044.727172][   T73]      ___sys_sendmsg+0xee/0x170
[ 4044.727172][   T73]      __sys_sendmsg+0xcd/0x170
[ 4044.727172][   T73]      do_syscall_64+0xc6/0x1e0
[ 4044.727172][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4044.727172][   T73] 
[ 4044.729172][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4044.729172][   T73]      netdev_get_by_index+0x5e/0x80
[ 4044.729172][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4044.729172][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4044.729172][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4044.729172][   T73]      ipv6_add_addr+0x411/0x2000
[ 4044.729172][   T73]      inet6_addr_add+0x30e/0xa40
[ 4044.729172][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4044.729172][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4044.729172][   T73]      netlink_rcv_skb+0x130/0x360
[ 4044.729172][   T73]      netlink_unicast+0x449/0x710
[ 4044.729172][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4044.729172][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4044.729172][   T73]      ___sys_sendmsg+0xee/0x170
[ 4044.729172][   T73]      __sys_sendmsg+0xcd/0x170
[ 4044.729172][   T73]      do_syscall_64+0xc6/0x1e0
[ 4044.729172][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4044.729172][   T73] 
[ 4044.731166][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4044.731166][   T73]      netdev_get_by_index+0x5e/0x80
[ 4044.731166][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4044.731166][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4044.731166][   T73]      ip6_route_add+0x1c/0x140
[ 4044.731166][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4044.731166][   T73]      addrconf_add_dev+0xe2/0x170
[ 4044.731166][   T73]      inet6_addr_add+0x12f/0xa40
[ 4044.731166][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4044.731166][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4044.731166][   T73]      netlink_rcv_skb+0x130/0x360
[ 4044.731166][   T73]      netlink_unicast+0x449/0x710
[ 4044.731166][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4044.731166][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4044.731166][   T73]      ___sys_sendmsg+0xee/0x170
[ 4044.731166][   T73]      __sys_sendmsg+0xcd/0x170
[ 4044.731166][   T73]      do_syscall_64+0xc6/0x1e0
[ 4044.731166][   T73] 
[ 4044.733115][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4044.733115][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4044.733115][   T73]      ipv6_find_idev+0x102/0x170
[ 4044.733115][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4044.733115][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4044.733115][   T73]      netlink_rcv_skb+0x130/0x360
[ 4044.733115][   T73]      netlink_unicast+0x449/0x710
[ 4044.733115][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4044.733115][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4044.733115][   T73]      ___sys_sendmsg+0xee/0x170
[ 4044.733115][   T73]      __sys_sendmsg+0xcd/0x170
[ 4044.733115][   T73]      do_syscall_64+0xc6/0x1e0
[ 4044.733115][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4044.733115][   T73] 
[ 4044.734645][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4044.734645][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4044.734645][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4044.734645][   T73]      ipv6_find_idev+0x102/0x170
[ 4044.734645][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4044.734645][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4044.734645][   T73]      netlink_rcv_skb+0x130/0x360
[ 4044.734645][   T73]      netlink_unicast+0x449/0x710
[ 4044.734645][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4044.734645][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4044.734645][   T73]      ___sys_sendmsg+0xee/0x170
[ 4044.734645][   T73]      __sys_sendmsg+0xcd/0x170
[ 4044.734645][   T73]      do_syscall_64+0xc6/0x1e0
[ 4044.734645][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4044.734645][   T73] 
[ 4044.736314][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4044.736594][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4044.736594][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4044.736594][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4044.736594][   T73]      fib6_nh_init+0xa22/0x1580
[ 4044.736594][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4044.736594][   T73]      ip6_route_add+0x1c/0x140
[ 4044.736594][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4044.736594][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4044.736594][   T73]      netlink_rcv_skb+0x130/0x360
[ 4044.736594][   T73]      netlink_unicast+0x449/0x710
[ 4044.736594][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4044.736594][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4044.736594][   T73]      ___sys_sendmsg+0xee/0x170
[ 4044.736594][   T73]      __sys_sendmsg+0xcd/0x170
[ 4044.736594][   T73]      do_syscall_64+0xc6/0x1e0
[ 4044.736594][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4044.736594][   T73] 
[ 4044.738645][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4044.738645][   T73]      dst_init+0x84/0x4a0
[ 4044.738645][   T73]      dst_alloc+0x97/0x150
[ 4044.738645][   T73]      ip6_dst_alloc+0x23/0x90
[ 4044.738645][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4044.738645][   T73]      ip6_pol_route+0x56f/0x840
[ 4044.738645][   T73]      fib6_rule_lookup+0x456/0x630
[ 4044.738645][   T73]      ip6_route_input+0x59c/0xa50
[ 4044.738645][   T73]      ipv6_rcv+0x397/0x810
[ 4044.738645][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4044.738645][   T73]      process_backlog+0x101/0x620
[ 4044.738645][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4044.738645][   T73]      net_rx_action+0x495/0xbe0
[ 4044.738645][   T73]      __do_softirq+0x1b5/0x7f6
[ 4044.738645][   T73] 
[ 4044.740451][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4044.740451][   T73]      netdev_get_by_index+0x5e/0x80
[ 4044.740451][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4044.740451][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4044.740451][   T73]      ip6_route_add+0x1c/0x140
[ 4044.740451][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4044.740451][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4044.740451][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4044.740451][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4044.740451][   T73]      netlink_rcv_skb+0x130/0x360
[ 4044.740451][   T73]      netlink_unicast+0x449/0x710
[ 4044.740451][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4044.740451][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4044.740451][   T73]      ___sys_sendmsg+0xee/0x170
[ 4044.740451][   T73]      __sys_sendmsg+0xcd/0x170
[ 4044.740451][   T73]      do_syscall_64+0xc6/0x1e0
[ 4044.740451][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4044.740451][   T73] 
[ 4044.742687][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4044.742687][   T73]      netdev_get_by_index+0x5e/0x80
[ 4044.742687][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4044.742687][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4044.742687][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4044.742687][   T73]      ipv6_add_addr+0x411/0x2000
[ 4044.742687][   T73]      inet6_addr_add+0x30e/0xa40
[ 4044.742687][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4044.742687][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4044.742687][   T73]      netlink_rcv_skb+0x130/0x360
[ 4044.742687][   T73]      netlink_unicast+0x449/0x710
[ 4044.742687][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4044.742687][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4044.742687][   T73]      ___sys_sendmsg+0xee/0x170
[ 4044.742687][   T73]      __sys_sendmsg+0xcd/0x170
[ 4044.742687][   T73]      do_syscall_64+0xc6/0x1e0
[ 4044.742687][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4044.742687][   T73] 
[ 4044.744984][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4044.744984][   T73]      netdev_get_by_index+0x5e/0x80
[ 4044.744984][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4044.744984][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4044.744984][   T73]      ip6_route_add+0x1c/0x140
[ 4044.744984][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4044.744984][   T73]      addrconf_add_dev+0xe2/0x170
[ 4044.744984][   T73]      inet6_addr_add+0x12f/0xa40
[ 4044.744984][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4044.744984][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4044.744984][   T73]      netlink_rcv_skb+0x130/0x360
[ 4044.744984][   T73]      netlink_unicast+0x449/0x710
[ 4044.744984][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4044.744984][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4044.744984][   T73]      ___sys_sendmsg+0xee/0x170
[ 4044.744984][   T73]      __sys_sendmsg+0xcd/0x170
[ 4044.744984][   T73]      do_syscall_64+0xc6/0x1e0
[ 4044.744984][   T73] 
[ 4044.747135][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4044.747135][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4044.747135][   T73]      ipv6_find_idev+0x102/0x170
[ 4044.747135][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4044.747135][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4044.747135][   T73]      netlink_rcv_skb+0x130/0x360
[ 4044.747135][   T73]      netlink_unicast+0x449/0x710
[ 4044.747135][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4044.747135][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4044.747135][   T73]      ___sys_sendmsg+0xee/0x170
[ 4044.747135][   T73]      __sys_sendmsg+0xcd/0x170
[ 4044.747135][   T73]      do_syscall_64+0xc6/0x1e0
[ 4044.747135][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4044.747135][   T73] 
[ 4044.748847][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4044.748847][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4044.748847][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4044.748847][   T73]      ipv6_find_idev+0x102/0x170
[ 4044.748847][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4044.748847][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4044.748847][   T73]      netlink_rcv_skb+0x130/0x360
[ 4044.748847][   T73]      netlink_unicast+0x449/0x710
[ 4044.748847][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4044.748847][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4044.748847][   T73]      ___sys_sendmsg+0xee/0x170
[ 4044.748847][   T73]      __sys_sendmsg+0xcd/0x170
[ 4044.748847][   T73]      do_syscall_64+0xc6/0x1e0
[ 4044.748847][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4044.748847][   T73] 
[ 4044.750757][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4044.751027][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4044.751027][   T73]      netdev_get_by_index+0x5e/0x80
[ 4044.751027][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4044.751027][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4044.751027][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4044.751027][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4044.751027][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4044.751027][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4044.751027][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4044.751027][   T73]      addrconf_dad_begin+0x310/0x670
[ 4044.751027][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4044.751027][   T73]      process_one_work+0x84d/0x18a0
[ 4044.751027][   T73]      worker_thread+0x587/0xd30
[ 4044.751027][   T73]      kthread+0x28a/0x350
[ 4044.751027][   T73]      ret_from_fork+0x31/0x70
[ 4044.751027][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4044.751027][   T73] 
[ 4044.753244][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4044.753244][   T73]      netdev_get_by_index+0x5e/0x80
[ 4044.753244][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4044.753244][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4044.753244][   T73]      ip6_route_add+0x1c/0x140
[ 4044.753244][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4044.753244][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4044.753244][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4044.753244][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4044.753244][   T73]      netlink_rcv_skb+0x130/0x360
[ 4044.753244][   T73]      netlink_unicast+0x449/0x710
[ 4044.753244][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4044.753244][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4044.753244][   T73]      ___sys_sendmsg+0xee/0x170
[ 4044.753244][   T73]      __sys_sendmsg+0xcd/0x170
[ 4044.753244][   T73]      do_syscall_64+0xc6/0x1e0
[ 4044.753244][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4044.753244][   T73] 
[ 4044.755413][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4044.755413][   T73]      netdev_get_by_index+0x5e/0x80
[ 4044.755413][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4044.755413][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4044.755413][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4044.755413][   T73]      ipv6_add_addr+0x411/0x2000
[ 4044.755413][   T73]      inet6_addr_add+0x30e/0xa40
[ 4044.755413][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4044.755413][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4044.755413][   T73]      netlink_rcv_skb+0x130/0x360
[ 4044.755413][   T73]      netlink_unicast+0x449/0x710
[ 4044.755413][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4044.755413][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4044.755413][   T73]      ___sys_sendmsg+0xee/0x170
[ 4044.755413][   T73]      __sys_sendmsg+0xcd/0x170
[ 4044.755413][   T73]      do_syscall_64+0xc6/0x1e0
[ 4044.755413][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4044.755413][   T73] 
[ 4044.757652][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4044.757652][   T73]      netdev_get_by_index+0x5e/0x80
[ 4044.757652][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4044.757652][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4044.757652][   T73]      ip6_route_add+0x1c/0x140
[ 4044.757652][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4044.757652][   T73]      addrconf_add_dev+0xe2/0x170
[ 4044.757652][   T73]      inet6_addr_add+0x12f/0xa40
[ 4044.757652][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4044.757652][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4044.757652][   T73]      netlink_rcv_skb+0x130/0x360
[ 4044.757652][   T73]      netlink_unicast+0x449/0x710
[ 4044.757652][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4044.757652][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4044.757652][   T73]      ___sys_sendmsg+0xee/0x170
[ 4044.757652][   T73]      __sys_sendmsg+0xcd/0x170
[ 4044.757652][   T73]      do_syscall_64+0xc6/0x1e0
[ 4044.757652][   T73] 
[ 4044.759883][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4044.759883][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4044.759883][   T73]      ipv6_find_idev+0x102/0x170
[ 4044.759883][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4044.759883][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4044.759883][   T73]      netlink_rcv_skb+0x130/0x360
[ 4044.759883][   T73]      netlink_unicast+0x449/0x710
[ 4044.759883][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4044.759883][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4044.759883][   T73]      ___sys_sendmsg+0xee/0x170
[ 4044.759883][   T73]      __sys_sendmsg+0xcd/0x170
[ 4044.759883][   T73]      do_syscall_64+0xc6/0x1e0
[ 4044.759883][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4044.759883][   T73] 
[ 4044.761606][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4044.761606][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4044.761606][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4044.761606][   T73]      ipv6_find_idev+0x102/0x170
[ 4044.761606][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4044.761606][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4044.761606][   T73]      netlink_rcv_skb+0x130/0x360
[ 4044.761606][   T73]      netlink_unicast+0x449/0x710
[ 4044.761606][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4044.761606][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4044.761606][   T73]      ___sys_sendmsg+0xee/0x170
[ 4044.761606][   T73]      __sys_sendmsg+0xcd/0x170
[ 4044.761606][   T73]      do_syscall_64+0xc6/0x1e0
[ 4044.761606][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4044.761606][   T73] 
[ 4054.999759][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4055.000242][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4055.000242][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4055.000242][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4055.000242][   T73]      fib6_nh_init+0xa22/0x1580
[ 4055.000242][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4055.000242][   T73]      ip6_route_add+0x1c/0x140
[ 4055.000242][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4055.000242][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4055.000242][   T73]      netlink_rcv_skb+0x130/0x360
[ 4055.000242][   T73]      netlink_unicast+0x449/0x710
[ 4055.000242][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4055.000242][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4055.000242][   T73]      ___sys_sendmsg+0xee/0x170
[ 4055.000242][   T73]      __sys_sendmsg+0xcd/0x170
[ 4055.000242][   T73]      do_syscall_64+0xc6/0x1e0
[ 4055.000242][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4055.000242][   T73] 
[ 4055.002168][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4055.002168][   T73]      dst_init+0x84/0x4a0
[ 4055.002168][   T73]      dst_alloc+0x97/0x150
[ 4055.002168][   T73]      ip6_dst_alloc+0x23/0x90
[ 4055.002168][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4055.002168][   T73]      ip6_pol_route+0x56f/0x840
[ 4055.002168][   T73]      fib6_rule_lookup+0x456/0x630
[ 4055.002168][   T73]      ip6_route_input+0x59c/0xa50
[ 4055.002168][   T73]      ipv6_rcv+0x397/0x810
[ 4055.002168][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4055.002168][   T73]      process_backlog+0x101/0x620
[ 4055.002168][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4055.002168][   T73]      net_rx_action+0x495/0xbe0
[ 4055.002168][   T73]      __do_softirq+0x1b5/0x7f6
[ 4055.002168][   T73] 
[ 4055.003805][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4055.003805][   T73]      netdev_get_by_index+0x5e/0x80
[ 4055.003805][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4055.003805][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4055.003805][   T73]      ip6_route_add+0x1c/0x140
[ 4055.003805][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4055.003805][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4055.003805][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4055.003805][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4055.003805][   T73]      netlink_rcv_skb+0x130/0x360
[ 4055.003805][   T73]      netlink_unicast+0x449/0x710
[ 4055.003805][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4055.003805][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4055.003805][   T73]      ___sys_sendmsg+0xee/0x170
[ 4055.003805][   T73]      __sys_sendmsg+0xcd/0x170
[ 4055.003805][   T73]      do_syscall_64+0xc6/0x1e0
[ 4055.003805][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4055.003805][   T73] 
[ 4055.005817][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4055.005817][   T73]      netdev_get_by_index+0x5e/0x80
[ 4055.005817][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4055.005817][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4055.005817][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4055.005817][   T73]      ipv6_add_addr+0x411/0x2000
[ 4055.005817][   T73]      inet6_addr_add+0x30e/0xa40
[ 4055.005817][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4055.005817][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4055.005817][   T73]      netlink_rcv_skb+0x130/0x360
[ 4055.005817][   T73]      netlink_unicast+0x449/0x710
[ 4055.005817][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4055.005817][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4055.005817][   T73]      ___sys_sendmsg+0xee/0x170
[ 4055.005817][   T73]      __sys_sendmsg+0xcd/0x170
[ 4055.005817][   T73]      do_syscall_64+0xc6/0x1e0
[ 4055.005817][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4055.005817][   T73] 
[ 4055.007857][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4055.007857][   T73]      netdev_get_by_index+0x5e/0x80
[ 4055.007857][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4055.007857][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4055.007857][   T73]      ip6_route_add+0x1c/0x140
[ 4055.007857][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4055.007857][   T73]      addrconf_add_dev+0xe2/0x170
[ 4055.007857][   T73]      inet6_addr_add+0x12f/0xa40
[ 4055.007857][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4055.007857][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4055.007857][   T73]      netlink_rcv_skb+0x130/0x360
[ 4055.007857][   T73]      netlink_unicast+0x449/0x710
[ 4055.007857][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4055.007857][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4055.007857][   T73]      ___sys_sendmsg+0xee/0x170
[ 4055.007857][   T73]      __sys_sendmsg+0xcd/0x170
[ 4055.007857][   T73]      do_syscall_64+0xc6/0x1e0
[ 4055.007857][   T73] 
[ 4055.009823][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4055.009823][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4055.009823][   T73]      ipv6_find_idev+0x102/0x170
[ 4055.009823][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4055.009823][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4055.009823][   T73]      netlink_rcv_skb+0x130/0x360
[ 4055.009823][   T73]      netlink_unicast+0x449/0x710
[ 4055.009823][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4055.009823][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4055.009823][   T73]      ___sys_sendmsg+0xee/0x170
[ 4055.009823][   T73]      __sys_sendmsg+0xcd/0x170
[ 4055.009823][   T73]      do_syscall_64+0xc6/0x1e0
[ 4055.009823][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4055.009823][   T73] 
[ 4055.011361][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4055.011361][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4055.011361][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4055.011361][   T73]      ipv6_find_idev+0x102/0x170
[ 4055.011361][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4055.011361][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4055.011361][   T73]      netlink_rcv_skb+0x130/0x360
[ 4055.011361][   T73]      netlink_unicast+0x449/0x710
[ 4055.011361][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4055.011361][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4055.011361][   T73]      ___sys_sendmsg+0xee/0x170
[ 4055.011361][   T73]      __sys_sendmsg+0xcd/0x170
[ 4055.011361][   T73]      do_syscall_64+0xc6/0x1e0
[ 4055.011361][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4055.011361][   T73] 
[ 4055.013061][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4055.013345][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4055.013345][   T73]      netdev_get_by_index+0x5e/0x80
[ 4055.013345][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4055.013345][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4055.013345][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4055.013345][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4055.013345][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4055.013345][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4055.013345][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4055.013345][   T73]      addrconf_dad_begin+0x310/0x670
[ 4055.013345][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4055.013345][   T73]      process_one_work+0x84d/0x18a0
[ 4055.013345][   T73]      worker_thread+0x587/0xd30
[ 4055.013345][   T73]      kthread+0x28a/0x350
[ 4055.013345][   T73]      ret_from_fork+0x31/0x70
[ 4055.013345][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4055.013345][   T73] 
[ 4055.015270][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4055.015270][   T73]      netdev_get_by_index+0x5e/0x80
[ 4055.015270][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4055.015270][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4055.015270][   T73]      ip6_route_add+0x1c/0x140
[ 4055.015270][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4055.015270][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4055.015270][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4055.015270][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4055.015270][   T73]      netlink_rcv_skb+0x130/0x360
[ 4055.015270][   T73]      netlink_unicast+0x449/0x710
[ 4055.015270][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4055.015270][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4055.015270][   T73]      ___sys_sendmsg+0xee/0x170
[ 4055.015270][   T73]      __sys_sendmsg+0xcd/0x170
[ 4055.015270][   T73]      do_syscall_64+0xc6/0x1e0
[ 4055.015270][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4055.015270][   T73] 
[ 4055.017275][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4055.017275][   T73]      netdev_get_by_index+0x5e/0x80
[ 4055.017275][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4055.017275][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4055.017275][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4055.017275][   T73]      ipv6_add_addr+0x411/0x2000
[ 4055.017275][   T73]      inet6_addr_add+0x30e/0xa40
[ 4055.017275][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4055.017275][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4055.017275][   T73]      netlink_rcv_skb+0x130/0x360
[ 4055.017275][   T73]      netlink_unicast+0x449/0x710
[ 4055.017275][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4055.017275][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4055.017275][   T73]      ___sys_sendmsg+0xee/0x170
[ 4055.017275][   T73]      __sys_sendmsg+0xcd/0x170
[ 4055.017275][   T73]      do_syscall_64+0xc6/0x1e0
[ 4055.017275][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4055.017275][   T73] 
[ 4055.019278][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4055.019278][   T73]      netdev_get_by_index+0x5e/0x80
[ 4055.019278][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4055.019278][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4055.019278][   T73]      ip6_route_add+0x1c/0x140
[ 4055.019278][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4055.019278][   T73]      addrconf_add_dev+0xe2/0x170
[ 4055.019278][   T73]      inet6_addr_add+0x12f/0xa40
[ 4055.019278][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4055.019278][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4055.019278][   T73]      netlink_rcv_skb+0x130/0x360
[ 4055.019278][   T73]      netlink_unicast+0x449/0x710
[ 4055.019278][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4055.019278][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4055.019278][   T73]      ___sys_sendmsg+0xee/0x170
[ 4055.019278][   T73]      __sys_sendmsg+0xcd/0x170
[ 4055.019278][   T73]      do_syscall_64+0xc6/0x1e0
[ 4055.019278][   T73] 
[ 4055.021243][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4055.021243][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4055.021243][   T73]      ipv6_find_idev+0x102/0x170
[ 4055.021243][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4055.021243][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4055.021243][   T73]      netlink_rcv_skb+0x130/0x360
[ 4055.021243][   T73]      netlink_unicast+0x449/0x710
[ 4055.021243][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4055.021243][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4055.021243][   T73]      ___sys_sendmsg+0xee/0x170
[ 4055.021243][   T73]      __sys_sendmsg+0xcd/0x170
[ 4055.021243][   T73]      do_syscall_64+0xc6/0x1e0
[ 4055.021243][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4055.021243][   T73] 
[ 4055.022786][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4055.022786][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4055.022786][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4055.022786][   T73]      ipv6_find_idev+0x102/0x170
[ 4055.022786][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4055.022786][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4055.022786][   T73]      netlink_rcv_skb+0x130/0x360
[ 4055.022786][   T73]      netlink_unicast+0x449/0x710
[ 4055.022786][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4055.022786][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4055.022786][   T73]      ___sys_sendmsg+0xee/0x170
[ 4055.022786][   T73]      __sys_sendmsg+0xcd/0x170
[ 4055.022786][   T73]      do_syscall_64+0xc6/0x1e0
[ 4055.022786][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4055.022786][   T73] 
[ 4055.024480][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4055.024764][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4055.024764][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4055.024764][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4055.024764][   T73]      fib6_nh_init+0xa22/0x1580
[ 4055.024764][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4055.024764][   T73]      ip6_route_add+0x1c/0x140
[ 4055.024764][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4055.024764][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4055.024764][   T73]      netlink_rcv_skb+0x130/0x360
[ 4055.024764][   T73]      netlink_unicast+0x449/0x710
[ 4055.024764][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4055.024764][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4055.024764][   T73]      ___sys_sendmsg+0xee/0x170
[ 4055.024764][   T73]      __sys_sendmsg+0xcd/0x170
[ 4055.024764][   T73]      do_syscall_64+0xc6/0x1e0
[ 4055.024764][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4055.024764][   T73] 
[ 4055.026774][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4055.026774][   T73]      dst_init+0x84/0x4a0
[ 4055.026774][   T73]      dst_alloc+0x97/0x150
[ 4055.026774][   T73]      ip6_dst_alloc+0x23/0x90
[ 4055.026774][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4055.026774][   T73]      ip6_pol_route+0x56f/0x840
[ 4055.026774][   T73]      fib6_rule_lookup+0x456/0x630
[ 4055.026774][   T73]      ip6_route_input+0x59c/0xa50
[ 4055.026774][   T73]      ipv6_rcv+0x397/0x810
[ 4055.026774][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4055.026774][   T73]      process_backlog+0x101/0x620
[ 4055.026774][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4055.026774][   T73]      net_rx_action+0x495/0xbe0
[ 4055.026774][   T73]      __do_softirq+0x1b5/0x7f6
[ 4055.026774][   T73] 
[ 4055.028665][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4055.028665][   T73]      netdev_get_by_index+0x5e/0x80
[ 4055.028665][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4055.028665][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4055.028665][   T73]      ip6_route_add+0x1c/0x140
[ 4055.028665][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4055.028665][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4055.028665][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4055.028665][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4055.028665][   T73]      netlink_rcv_skb+0x130/0x360
[ 4055.028665][   T73]      netlink_unicast+0x449/0x710
[ 4055.028665][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4055.028665][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4055.028665][   T73]      ___sys_sendmsg+0xee/0x170
[ 4055.028665][   T73]      __sys_sendmsg+0xcd/0x170
[ 4055.028665][   T73]      do_syscall_64+0xc6/0x1e0
[ 4055.028665][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4055.028665][   T73] 
[ 4055.030919][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4055.030919][   T73]      netdev_get_by_index+0x5e/0x80
[ 4055.030919][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4055.030919][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4055.030919][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4055.030919][   T73]      ipv6_add_addr+0x411/0x2000
[ 4055.030919][   T73]      inet6_addr_add+0x30e/0xa40
[ 4055.030919][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4055.030919][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4055.030919][   T73]      netlink_rcv_skb+0x130/0x360
[ 4055.030919][   T73]      netlink_unicast+0x449/0x710
[ 4055.030919][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4055.030919][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4055.030919][   T73]      ___sys_sendmsg+0xee/0x170
[ 4055.030919][   T73]      __sys_sendmsg+0xcd/0x170
[ 4055.030919][   T73]      do_syscall_64+0xc6/0x1e0
[ 4055.030919][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4055.030919][   T73] 
[ 4055.033169][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4055.033169][   T73]      netdev_get_by_index+0x5e/0x80
[ 4055.033169][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4055.033169][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4055.033169][   T73]      ip6_route_add+0x1c/0x140
[ 4055.033169][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4055.033169][   T73]      addrconf_add_dev+0xe2/0x170
[ 4055.033169][   T73]      inet6_addr_add+0x12f/0xa40
[ 4055.033169][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4055.033169][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4055.033169][   T73]      netlink_rcv_skb+0x130/0x360
[ 4055.033169][   T73]      netlink_unicast+0x449/0x710
[ 4055.033169][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4055.033169][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4055.033169][   T73]      ___sys_sendmsg+0xee/0x170
[ 4055.033169][   T73]      __sys_sendmsg+0xcd/0x170
[ 4055.033169][   T73]      do_syscall_64+0xc6/0x1e0
[ 4055.033169][   T73] 
[ 4055.035262][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4055.035262][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4055.035262][   T73]      ipv6_find_idev+0x102/0x170
[ 4055.035262][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4055.035262][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4055.035262][   T73]      netlink_rcv_skb+0x130/0x360
[ 4055.035262][   T73]      netlink_unicast+0x449/0x710
[ 4055.035262][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4055.035262][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4055.035262][   T73]      ___sys_sendmsg+0xee/0x170
[ 4055.035262][   T73]      __sys_sendmsg+0xcd/0x170
[ 4055.035262][   T73]      do_syscall_64+0xc6/0x1e0
[ 4055.035262][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4055.035262][   T73] 
[ 4055.037077][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4055.037077][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4055.037077][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4055.037077][   T73]      ipv6_find_idev+0x102/0x170
[ 4055.037077][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4055.037077][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4055.037077][   T73]      netlink_rcv_skb+0x130/0x360
[ 4055.037077][   T73]      netlink_unicast+0x449/0x710
[ 4055.037077][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4055.037077][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4055.037077][   T73]      ___sys_sendmsg+0xee/0x170
[ 4055.037077][   T73]      __sys_sendmsg+0xcd/0x170
[ 4055.037077][   T73]      do_syscall_64+0xc6/0x1e0
[ 4055.037077][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4055.037077][   T73] 
[ 4055.039056][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4055.039337][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4055.039337][   T73]      netdev_get_by_index+0x5e/0x80
[ 4055.039337][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4055.039337][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4055.039337][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4055.039337][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4055.039337][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4055.039337][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4055.039337][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4055.039337][   T73]      addrconf_dad_begin+0x310/0x670
[ 4055.039337][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4055.039337][   T73]      process_one_work+0x84d/0x18a0
[ 4055.039337][   T73]      worker_thread+0x587/0xd30
[ 4055.039337][   T73]      kthread+0x28a/0x350
[ 4055.039337][   T73]      ret_from_fork+0x31/0x70
[ 4055.039337][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4055.039337][   T73] 
[ 4055.041495][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4055.041495][   T73]      netdev_get_by_index+0x5e/0x80
[ 4055.041495][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4055.041495][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4055.041495][   T73]      ip6_route_add+0x1c/0x140
[ 4055.041495][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4055.041495][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4055.041495][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4055.041495][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4055.041495][   T73]      netlink_rcv_skb+0x130/0x360
[ 4055.041495][   T73]      netlink_unicast+0x449/0x710
[ 4055.041495][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4055.041495][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4055.041495][   T73]      ___sys_sendmsg+0xee/0x170
[ 4055.041495][   T73]      __sys_sendmsg+0xcd/0x170
[ 4055.041495][   T73]      do_syscall_64+0xc6/0x1e0
[ 4055.041495][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4055.041495][   T73] 
[ 4055.043664][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4055.043664][   T73]      netdev_get_by_index+0x5e/0x80
[ 4055.043664][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4055.043664][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4055.043664][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4055.043664][   T73]      ipv6_add_addr+0x411/0x2000
[ 4055.043664][   T73]      inet6_addr_add+0x30e/0xa40
[ 4055.043664][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4055.043664][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4055.043664][   T73]      netlink_rcv_skb+0x130/0x360
[ 4055.043664][   T73]      netlink_unicast+0x449/0x710
[ 4055.043664][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4055.043664][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4055.043664][   T73]      ___sys_sendmsg+0xee/0x170
[ 4055.043664][   T73]      __sys_sendmsg+0xcd/0x170
[ 4055.043664][   T73]      do_syscall_64+0xc6/0x1e0
[ 4055.043664][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4055.043664][   T73] 
[ 4055.045909][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4055.045909][   T73]      netdev_get_by_index+0x5e/0x80
[ 4055.045909][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4055.045909][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4055.045909][   T73]      ip6_route_add+0x1c/0x140
[ 4055.045909][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4055.045909][   T73]      addrconf_add_dev+0xe2/0x170
[ 4055.045909][   T73]      inet6_addr_add+0x12f/0xa40
[ 4055.045909][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4055.045909][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4055.045909][   T73]      netlink_rcv_skb+0x130/0x360
[ 4055.045909][   T73]      netlink_unicast+0x449/0x710
[ 4055.045909][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4055.045909][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4055.045909][   T73]      ___sys_sendmsg+0xee/0x170
[ 4055.045909][   T73]      __sys_sendmsg+0xcd/0x170
[ 4055.045909][   T73]      do_syscall_64+0xc6/0x1e0
[ 4055.045909][   T73] 
[ 4055.048167][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4055.048167][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4055.048167][   T73]      ipv6_find_idev+0x102/0x170
[ 4055.048167][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4055.048167][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4055.048167][   T73]      netlink_rcv_skb+0x130/0x360
[ 4055.048167][   T73]      netlink_unicast+0x449/0x710
[ 4055.048167][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4055.048167][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4055.048167][   T73]      ___sys_sendmsg+0xee/0x170
[ 4055.048167][   T73]      __sys_sendmsg+0xcd/0x170
[ 4055.048167][   T73]      do_syscall_64+0xc6/0x1e0
[ 4055.048167][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4055.048167][   T73] 
[ 4055.049883][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4055.049883][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4055.049883][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4055.049883][   T73]      ipv6_find_idev+0x102/0x170
[ 4055.049883][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4055.049883][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4055.049883][   T73]      netlink_rcv_skb+0x130/0x360
[ 4055.049883][   T73]      netlink_unicast+0x449/0x710
[ 4055.049883][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4055.049883][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4055.049883][   T73]      ___sys_sendmsg+0xee/0x170
[ 4055.049883][   T73]      __sys_sendmsg+0xcd/0x170
[ 4055.049883][   T73]      do_syscall_64+0xc6/0x1e0
[ 4055.049883][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4055.049883][   T73] 
[ 4065.287744][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4065.288274][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4065.288274][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4065.288274][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4065.288274][   T73]      fib6_nh_init+0xa22/0x1580
[ 4065.288274][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4065.288274][   T73]      ip6_route_add+0x1c/0x140
[ 4065.288274][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4065.288274][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4065.288274][   T73]      netlink_rcv_skb+0x130/0x360
[ 4065.288274][   T73]      netlink_unicast+0x449/0x710
[ 4065.288274][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4065.288274][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4065.288274][   T73]      ___sys_sendmsg+0xee/0x170
[ 4065.288274][   T73]      __sys_sendmsg+0xcd/0x170
[ 4065.288274][   T73]      do_syscall_64+0xc6/0x1e0
[ 4065.288274][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4065.288274][   T73] 
[ 4065.290167][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4065.290167][   T73]      dst_init+0x84/0x4a0
[ 4065.290167][   T73]      dst_alloc+0x97/0x150
[ 4065.290167][   T73]      ip6_dst_alloc+0x23/0x90
[ 4065.290167][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4065.290167][   T73]      ip6_pol_route+0x56f/0x840
[ 4065.290167][   T73]      fib6_rule_lookup+0x456/0x630
[ 4065.290167][   T73]      ip6_route_input+0x59c/0xa50
[ 4065.290167][   T73]      ipv6_rcv+0x397/0x810
[ 4065.290167][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4065.290167][   T73]      process_backlog+0x101/0x620
[ 4065.290167][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4065.290167][   T73]      net_rx_action+0x495/0xbe0
[ 4065.290167][   T73]      __do_softirq+0x1b5/0x7f6
[ 4065.290167][   T73] 
[ 4065.291798][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4065.291798][   T73]      netdev_get_by_index+0x5e/0x80
[ 4065.291798][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4065.291798][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4065.291798][   T73]      ip6_route_add+0x1c/0x140
[ 4065.291798][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4065.291798][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4065.291798][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4065.291798][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4065.291798][   T73]      netlink_rcv_skb+0x130/0x360
[ 4065.291798][   T73]      netlink_unicast+0x449/0x710
[ 4065.291798][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4065.291798][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4065.291798][   T73]      ___sys_sendmsg+0xee/0x170
[ 4065.291798][   T73]      __sys_sendmsg+0xcd/0x170
[ 4065.291798][   T73]      do_syscall_64+0xc6/0x1e0
[ 4065.291798][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4065.291798][   T73] 
[ 4065.293796][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4065.293796][   T73]      netdev_get_by_index+0x5e/0x80
[ 4065.293796][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4065.293796][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4065.293796][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4065.293796][   T73]      ipv6_add_addr+0x411/0x2000
[ 4065.293796][   T73]      inet6_addr_add+0x30e/0xa40
[ 4065.293796][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4065.293796][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4065.293796][   T73]      netlink_rcv_skb+0x130/0x360
[ 4065.293796][   T73]      netlink_unicast+0x449/0x710
[ 4065.293796][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4065.293796][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4065.293796][   T73]      ___sys_sendmsg+0xee/0x170
[ 4065.293796][   T73]      __sys_sendmsg+0xcd/0x170
[ 4065.293796][   T73]      do_syscall_64+0xc6/0x1e0
[ 4065.293796][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4065.293796][   T73] 
[ 4065.295796][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4065.295796][   T73]      netdev_get_by_index+0x5e/0x80
[ 4065.295796][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4065.295796][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4065.295796][   T73]      ip6_route_add+0x1c/0x140
[ 4065.295796][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4065.295796][   T73]      addrconf_add_dev+0xe2/0x170
[ 4065.295796][   T73]      inet6_addr_add+0x12f/0xa40
[ 4065.295796][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4065.295796][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4065.295796][   T73]      netlink_rcv_skb+0x130/0x360
[ 4065.295796][   T73]      netlink_unicast+0x449/0x710
[ 4065.295796][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4065.295796][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4065.295796][   T73]      ___sys_sendmsg+0xee/0x170
[ 4065.295796][   T73]      __sys_sendmsg+0xcd/0x170
[ 4065.295796][   T73]      do_syscall_64+0xc6/0x1e0
[ 4065.295796][   T73] 
[ 4065.297762][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4065.297762][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4065.297762][   T73]      ipv6_find_idev+0x102/0x170
[ 4065.297762][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4065.297762][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4065.297762][   T73]      netlink_rcv_skb+0x130/0x360
[ 4065.297762][   T73]      netlink_unicast+0x449/0x710
[ 4065.297762][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4065.297762][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4065.297762][   T73]      ___sys_sendmsg+0xee/0x170
[ 4065.297762][   T73]      __sys_sendmsg+0xcd/0x170
[ 4065.297762][   T73]      do_syscall_64+0xc6/0x1e0
[ 4065.297762][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4065.297762][   T73] 
[ 4065.299298][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4065.299298][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4065.299298][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4065.299298][   T73]      ipv6_find_idev+0x102/0x170
[ 4065.299298][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4065.299298][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4065.299298][   T73]      netlink_rcv_skb+0x130/0x360
[ 4065.299298][   T73]      netlink_unicast+0x449/0x710
[ 4065.299298][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4065.299298][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4065.299298][   T73]      ___sys_sendmsg+0xee/0x170
[ 4065.299298][   T73]      __sys_sendmsg+0xcd/0x170
[ 4065.299298][   T73]      do_syscall_64+0xc6/0x1e0
[ 4065.299298][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4065.299298][   T73] 
[ 4065.301526][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4065.301827][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4065.301827][   T73]      netdev_get_by_index+0x5e/0x80
[ 4065.301827][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4065.301827][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4065.301827][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4065.301827][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4065.301827][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4065.301827][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4065.301827][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4065.301827][   T73]      addrconf_dad_begin+0x310/0x670
[ 4065.301827][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4065.301827][   T73]      process_one_work+0x84d/0x18a0
[ 4065.301827][   T73]      worker_thread+0x587/0xd30
[ 4065.301827][   T73]      kthread+0x28a/0x350
[ 4065.301827][   T73]      ret_from_fork+0x31/0x70
[ 4065.301827][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4065.301827][   T73] 
[ 4065.306977][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4065.306977][   T73]      netdev_get_by_index+0x5e/0x80
[ 4065.306977][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4065.306977][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4065.306977][   T73]      ip6_route_add+0x1c/0x140
[ 4065.306977][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4065.306977][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4065.306977][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4065.306977][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4065.306977][   T73]      netlink_rcv_skb+0x130/0x360
[ 4065.306977][   T73]      netlink_unicast+0x449/0x710
[ 4065.306977][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4065.306977][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4065.306977][   T73]      ___sys_sendmsg+0xee/0x170
[ 4065.306977][   T73]      __sys_sendmsg+0xcd/0x170
[ 4065.306977][   T73]      do_syscall_64+0xc6/0x1e0
[ 4065.306977][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4065.306977][   T73] 
[ 4065.308971][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4065.308971][   T73]      netdev_get_by_index+0x5e/0x80
[ 4065.308971][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4065.308971][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4065.308971][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4065.308971][   T73]      ipv6_add_addr+0x411/0x2000
[ 4065.308971][   T73]      inet6_addr_add+0x30e/0xa40
[ 4065.308971][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4065.308971][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4065.308971][   T73]      netlink_rcv_skb+0x130/0x360
[ 4065.308971][   T73]      netlink_unicast+0x449/0x710
[ 4065.308971][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4065.308971][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4065.308971][   T73]      ___sys_sendmsg+0xee/0x170
[ 4065.308971][   T73]      __sys_sendmsg+0xcd/0x170
[ 4065.308971][   T73]      do_syscall_64+0xc6/0x1e0
[ 4065.308971][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4065.308971][   T73] 
[ 4065.310961][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4065.310961][   T73]      netdev_get_by_index+0x5e/0x80
[ 4065.310961][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4065.310961][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4065.310961][   T73]      ip6_route_add+0x1c/0x140
[ 4065.310961][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4065.310961][   T73]      addrconf_add_dev+0xe2/0x170
[ 4065.310961][   T73]      inet6_addr_add+0x12f/0xa40
[ 4065.310961][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4065.310961][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4065.310961][   T73]      netlink_rcv_skb+0x130/0x360
[ 4065.310961][   T73]      netlink_unicast+0x449/0x710
[ 4065.310961][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4065.310961][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4065.310961][   T73]      ___sys_sendmsg+0xee/0x170
[ 4065.310961][   T73]      __sys_sendmsg+0xcd/0x170
[ 4065.310961][   T73]      do_syscall_64+0xc6/0x1e0
[ 4065.310961][   T73] 
[ 4065.312918][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4065.312918][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4065.312918][   T73]      ipv6_find_idev+0x102/0x170
[ 4065.312918][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4065.312918][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4065.312918][   T73]      netlink_rcv_skb+0x130/0x360
[ 4065.312918][   T73]      netlink_unicast+0x449/0x710
[ 4065.312918][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4065.312918][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4065.312918][   T73]      ___sys_sendmsg+0xee/0x170
[ 4065.312918][   T73]      __sys_sendmsg+0xcd/0x170
[ 4065.312918][   T73]      do_syscall_64+0xc6/0x1e0
[ 4065.312918][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4065.312918][   T73] 
[ 4065.314445][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4065.314445][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4065.314445][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4065.314445][   T73]      ipv6_find_idev+0x102/0x170
[ 4065.314445][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4065.314445][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4065.314445][   T73]      netlink_rcv_skb+0x130/0x360
[ 4065.314445][   T73]      netlink_unicast+0x449/0x710
[ 4065.314445][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4065.314445][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4065.314445][   T73]      ___sys_sendmsg+0xee/0x170
[ 4065.314445][   T73]      __sys_sendmsg+0xcd/0x170
[ 4065.314445][   T73]      do_syscall_64+0xc6/0x1e0
[ 4065.314445][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4065.314445][   T73] 
[ 4065.316153][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4065.316424][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4065.316424][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4065.316424][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4065.316424][   T73]      fib6_nh_init+0xa22/0x1580
[ 4065.316424][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4065.316424][   T73]      ip6_route_add+0x1c/0x140
[ 4065.316424][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4065.316424][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4065.316424][   T73]      netlink_rcv_skb+0x130/0x360
[ 4065.316424][   T73]      netlink_unicast+0x449/0x710
[ 4065.316424][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4065.316424][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4065.316424][   T73]      ___sys_sendmsg+0xee/0x170
[ 4065.316424][   T73]      __sys_sendmsg+0xcd/0x170
[ 4065.316424][   T73]      do_syscall_64+0xc6/0x1e0
[ 4065.316424][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4065.316424][   T73] 
[ 4065.318488][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4065.318488][   T73]      dst_init+0x84/0x4a0
[ 4065.318488][   T73]      dst_alloc+0x97/0x150
[ 4065.318488][   T73]      ip6_dst_alloc+0x23/0x90
[ 4065.318488][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4065.318488][   T73]      ip6_pol_route+0x56f/0x840
[ 4065.318488][   T73]      fib6_rule_lookup+0x456/0x630
[ 4065.318488][   T73]      ip6_route_input+0x59c/0xa50
[ 4065.318488][   T73]      ipv6_rcv+0x397/0x810
[ 4065.318488][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4065.318488][   T73]      process_backlog+0x101/0x620
[ 4065.318488][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4065.318488][   T73]      net_rx_action+0x495/0xbe0
[ 4065.318488][   T73]      __do_softirq+0x1b5/0x7f6
[ 4065.318488][   T73] 
[ 4065.320306][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4065.320306][   T73]      netdev_get_by_index+0x5e/0x80
[ 4065.320306][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4065.320306][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4065.320306][   T73]      ip6_route_add+0x1c/0x140
[ 4065.320306][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4065.320306][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4065.320306][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4065.320306][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4065.320306][   T73]      netlink_rcv_skb+0x130/0x360
[ 4065.320306][   T73]      netlink_unicast+0x449/0x710
[ 4065.320306][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4065.320306][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4065.320306][   T73]      ___sys_sendmsg+0xee/0x170
[ 4065.320306][   T73]      __sys_sendmsg+0xcd/0x170
[ 4065.320306][   T73]      do_syscall_64+0xc6/0x1e0
[ 4065.320306][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4065.320306][   T73] 
[ 4065.322541][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4065.322541][   T73]      netdev_get_by_index+0x5e/0x80
[ 4065.322541][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4065.322541][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4065.322541][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4065.322541][   T73]      ipv6_add_addr+0x411/0x2000
[ 4065.322541][   T73]      inet6_addr_add+0x30e/0xa40
[ 4065.322541][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4065.322541][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4065.322541][   T73]      netlink_rcv_skb+0x130/0x360
[ 4065.322541][   T73]      netlink_unicast+0x449/0x710
[ 4065.322541][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4065.322541][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4065.322541][   T73]      ___sys_sendmsg+0xee/0x170
[ 4065.322541][   T73]      __sys_sendmsg+0xcd/0x170
[ 4065.322541][   T73]      do_syscall_64+0xc6/0x1e0
[ 4065.322541][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4065.322541][   T73] 
[ 4065.324843][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4065.324843][   T73]      netdev_get_by_index+0x5e/0x80
[ 4065.324843][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4065.324843][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4065.324843][   T73]      ip6_route_add+0x1c/0x140
[ 4065.324843][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4065.324843][   T73]      addrconf_add_dev+0xe2/0x170
[ 4065.324843][   T73]      inet6_addr_add+0x12f/0xa40
[ 4065.324843][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4065.324843][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4065.324843][   T73]      netlink_rcv_skb+0x130/0x360
[ 4065.324843][   T73]      netlink_unicast+0x449/0x710
[ 4065.324843][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4065.324843][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4065.324843][   T73]      ___sys_sendmsg+0xee/0x170
[ 4065.324843][   T73]      __sys_sendmsg+0xcd/0x170
[ 4065.324843][   T73]      do_syscall_64+0xc6/0x1e0
[ 4065.324843][   T73] 
[ 4065.326989][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4065.326989][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4065.326989][   T73]      ipv6_find_idev+0x102/0x170
[ 4065.326989][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4065.326989][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4065.326989][   T73]      netlink_rcv_skb+0x130/0x360
[ 4065.326989][   T73]      netlink_unicast+0x449/0x710
[ 4065.326989][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4065.326989][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4065.326989][   T73]      ___sys_sendmsg+0xee/0x170
[ 4065.326989][   T73]      __sys_sendmsg+0xcd/0x170
[ 4065.326989][   T73]      do_syscall_64+0xc6/0x1e0
[ 4065.326989][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4065.326989][   T73] 
[ 4065.328699][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4065.328699][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4065.328699][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4065.328699][   T73]      ipv6_find_idev+0x102/0x170
[ 4065.328699][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4065.328699][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4065.328699][   T73]      netlink_rcv_skb+0x130/0x360
[ 4065.328699][   T73]      netlink_unicast+0x449/0x710
[ 4065.328699][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4065.328699][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4065.328699][   T73]      ___sys_sendmsg+0xee/0x170
[ 4065.328699][   T73]      __sys_sendmsg+0xcd/0x170
[ 4065.328699][   T73]      do_syscall_64+0xc6/0x1e0
[ 4065.328699][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4065.328699][   T73] 
[ 4065.331047][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4065.331341][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4065.331341][   T73]      netdev_get_by_index+0x5e/0x80
[ 4065.331341][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4065.331341][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4065.331341][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4065.331341][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4065.331341][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4065.331341][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4065.331341][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4065.331341][   T73]      addrconf_dad_begin+0x310/0x670
[ 4065.331341][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4065.331341][   T73]      process_one_work+0x84d/0x18a0
[ 4065.331341][   T73]      worker_thread+0x587/0xd30
[ 4065.331341][   T73]      kthread+0x28a/0x350
[ 4065.331341][   T73]      ret_from_fork+0x31/0x70
[ 4065.331341][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4065.331341][   T73] 
[ 4065.333237][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4065.333237][   T73]      netdev_get_by_index+0x5e/0x80
[ 4065.333237][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4065.333237][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4065.333237][   T73]      ip6_route_add+0x1c/0x140
[ 4065.333237][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4065.333237][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4065.333237][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4065.333237][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4065.333237][   T73]      netlink_rcv_skb+0x130/0x360
[ 4065.333237][   T73]      netlink_unicast+0x449/0x710
[ 4065.333237][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4065.333237][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4065.333237][   T73]      ___sys_sendmsg+0xee/0x170
[ 4065.333237][   T73]      __sys_sendmsg+0xcd/0x170
[ 4065.333237][   T73]      do_syscall_64+0xc6/0x1e0
[ 4065.333237][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4065.333237][   T73] 
[ 4065.335369][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4065.335369][   T73]      netdev_get_by_index+0x5e/0x80
[ 4065.335369][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4065.335369][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4065.335369][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4065.335369][   T73]      ipv6_add_addr+0x411/0x2000
[ 4065.335369][   T73]      inet6_addr_add+0x30e/0xa40
[ 4065.335369][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4065.335369][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4065.335369][   T73]      netlink_rcv_skb+0x130/0x360
[ 4065.335369][   T73]      netlink_unicast+0x449/0x710
[ 4065.335369][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4065.335369][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4065.335369][   T73]      ___sys_sendmsg+0xee/0x170
[ 4065.335369][   T73]      __sys_sendmsg+0xcd/0x170
[ 4065.335369][   T73]      do_syscall_64+0xc6/0x1e0
[ 4065.335369][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4065.335369][   T73] 
[ 4065.337574][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4065.337574][   T73]      netdev_get_by_index+0x5e/0x80
[ 4065.337574][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4065.337574][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4065.337574][   T73]      ip6_route_add+0x1c/0x140
[ 4065.337574][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4065.337574][   T73]      addrconf_add_dev+0xe2/0x170
[ 4065.337574][   T73]      inet6_addr_add+0x12f/0xa40
[ 4065.337574][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4065.337574][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4065.337574][   T73]      netlink_rcv_skb+0x130/0x360
[ 4065.337574][   T73]      netlink_unicast+0x449/0x710
[ 4065.337574][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4065.337574][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4065.337574][   T73]      ___sys_sendmsg+0xee/0x170
[ 4065.337574][   T73]      __sys_sendmsg+0xcd/0x170
[ 4065.337574][   T73]      do_syscall_64+0xc6/0x1e0
[ 4065.337574][   T73] 
[ 4065.339842][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4065.339842][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4065.339842][   T73]      ipv6_find_idev+0x102/0x170
[ 4065.339842][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4065.339842][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4065.339842][   T73]      netlink_rcv_skb+0x130/0x360
[ 4065.339842][   T73]      netlink_unicast+0x449/0x710
[ 4065.339842][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4065.339842][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4065.339842][   T73]      ___sys_sendmsg+0xee/0x170
[ 4065.339842][   T73]      __sys_sendmsg+0xcd/0x170
[ 4065.339842][   T73]      do_syscall_64+0xc6/0x1e0
[ 4065.339842][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4065.339842][   T73] 
[ 4065.341556][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4065.341556][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4065.341556][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4065.341556][   T73]      ipv6_find_idev+0x102/0x170
[ 4065.341556][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4065.341556][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4065.341556][   T73]      netlink_rcv_skb+0x130/0x360
[ 4065.341556][   T73]      netlink_unicast+0x449/0x710
[ 4065.341556][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4065.341556][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4065.341556][   T73]      ___sys_sendmsg+0xee/0x170
[ 4065.341556][   T73]      __sys_sendmsg+0xcd/0x170
[ 4065.341556][   T73]      do_syscall_64+0xc6/0x1e0
[ 4065.341556][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4065.341556][   T73] 
[ 4075.383765][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4075.384189][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4075.384189][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4075.384189][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4075.384189][   T73]      fib6_nh_init+0xa22/0x1580
[ 4075.384189][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4075.384189][   T73]      ip6_route_add+0x1c/0x140
[ 4075.384189][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4075.384189][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4075.384189][   T73]      netlink_rcv_skb+0x130/0x360
[ 4075.384189][   T73]      netlink_unicast+0x449/0x710
[ 4075.384189][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4075.384189][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4075.384189][   T73]      ___sys_sendmsg+0xee/0x170
[ 4075.384189][   T73]      __sys_sendmsg+0xcd/0x170
[ 4075.384189][   T73]      do_syscall_64+0xc6/0x1e0
[ 4075.384189][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4075.384189][   T73] 
[ 4075.386137][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4075.386137][   T73]      dst_init+0x84/0x4a0
[ 4075.386137][   T73]      dst_alloc+0x97/0x150
[ 4075.386137][   T73]      ip6_dst_alloc+0x23/0x90
[ 4075.386137][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4075.386137][   T73]      ip6_pol_route+0x56f/0x840
[ 4075.386137][   T73]      fib6_rule_lookup+0x456/0x630
[ 4075.386137][   T73]      ip6_route_input+0x59c/0xa50
[ 4075.386137][   T73]      ipv6_rcv+0x397/0x810
[ 4075.386137][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4075.386137][   T73]      process_backlog+0x101/0x620
[ 4075.386137][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4075.386137][   T73]      net_rx_action+0x495/0xbe0
[ 4075.386137][   T73]      __do_softirq+0x1b5/0x7f6
[ 4075.386137][   T73] 
[ 4075.387928][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4075.387928][   T73]      netdev_get_by_index+0x5e/0x80
[ 4075.387928][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4075.387928][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4075.387928][   T73]      ip6_route_add+0x1c/0x140
[ 4075.387928][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4075.387928][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4075.387928][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4075.387928][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4075.387928][   T73]      netlink_rcv_skb+0x130/0x360
[ 4075.387928][   T73]      netlink_unicast+0x449/0x710
[ 4075.387928][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4075.387928][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4075.387928][   T73]      ___sys_sendmsg+0xee/0x170
[ 4075.387928][   T73]      __sys_sendmsg+0xcd/0x170
[ 4075.387928][   T73]      do_syscall_64+0xc6/0x1e0
[ 4075.387928][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4075.387928][   T73] 
[ 4075.390168][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4075.390168][   T73]      netdev_get_by_index+0x5e/0x80
[ 4075.390168][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4075.390168][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4075.390168][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4075.390168][   T73]      ipv6_add_addr+0x411/0x2000
[ 4075.390168][   T73]      inet6_addr_add+0x30e/0xa40
[ 4075.390168][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4075.390168][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4075.390168][   T73]      netlink_rcv_skb+0x130/0x360
[ 4075.390168][   T73]      netlink_unicast+0x449/0x710
[ 4075.390168][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4075.390168][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4075.390168][   T73]      ___sys_sendmsg+0xee/0x170
[ 4075.390168][   T73]      __sys_sendmsg+0xcd/0x170
[ 4075.390168][   T73]      do_syscall_64+0xc6/0x1e0
[ 4075.390168][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4075.390168][   T73] 
[ 4075.392409][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4075.392409][   T73]      netdev_get_by_index+0x5e/0x80
[ 4075.392409][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4075.392409][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4075.392409][   T73]      ip6_route_add+0x1c/0x140
[ 4075.392409][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4075.392409][   T73]      addrconf_add_dev+0xe2/0x170
[ 4075.392409][   T73]      inet6_addr_add+0x12f/0xa40
[ 4075.392409][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4075.392409][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4075.392409][   T73]      netlink_rcv_skb+0x130/0x360
[ 4075.392409][   T73]      netlink_unicast+0x449/0x710
[ 4075.392409][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4075.392409][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4075.392409][   T73]      ___sys_sendmsg+0xee/0x170
[ 4075.392409][   T73]      __sys_sendmsg+0xcd/0x170
[ 4075.392409][   T73]      do_syscall_64+0xc6/0x1e0
[ 4075.392409][   T73] 
[ 4075.398113][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4075.398113][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4075.398113][   T73]      ipv6_find_idev+0x102/0x170
[ 4075.398113][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4075.398113][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4075.398113][   T73]      netlink_rcv_skb+0x130/0x360
[ 4075.398113][   T73]      netlink_unicast+0x449/0x710
[ 4075.398113][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4075.398113][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4075.398113][   T73]      ___sys_sendmsg+0xee/0x170
[ 4075.398113][   T73]      __sys_sendmsg+0xcd/0x170
[ 4075.398113][   T73]      do_syscall_64+0xc6/0x1e0
[ 4075.398113][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4075.398113][   T73] 
[ 4075.399666][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4075.399666][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4075.399666][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4075.399666][   T73]      ipv6_find_idev+0x102/0x170
[ 4075.399666][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4075.399666][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4075.399666][   T73]      netlink_rcv_skb+0x130/0x360
[ 4075.399666][   T73]      netlink_unicast+0x449/0x710
[ 4075.399666][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4075.399666][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4075.399666][   T73]      ___sys_sendmsg+0xee/0x170
[ 4075.399666][   T73]      __sys_sendmsg+0xcd/0x170
[ 4075.399666][   T73]      do_syscall_64+0xc6/0x1e0
[ 4075.399666][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4075.399666][   T73] 
[ 4075.401354][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4075.401641][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4075.401641][   T73]      netdev_get_by_index+0x5e/0x80
[ 4075.401641][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4075.401641][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4075.401641][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4075.401641][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4075.401641][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4075.401641][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4075.401641][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4075.401641][   T73]      addrconf_dad_begin+0x310/0x670
[ 4075.401641][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4075.401641][   T73]      process_one_work+0x84d/0x18a0
[ 4075.401641][   T73]      worker_thread+0x587/0xd30
[ 4075.401641][   T73]      kthread+0x28a/0x350
[ 4075.401641][   T73]      ret_from_fork+0x31/0x70
[ 4075.401641][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4075.401641][   T73] 
[ 4075.403545][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4075.403545][   T73]      netdev_get_by_index+0x5e/0x80
[ 4075.403545][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4075.403545][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4075.403545][   T73]      ip6_route_add+0x1c/0x140
[ 4075.403545][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4075.403545][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4075.403545][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4075.403545][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4075.403545][   T73]      netlink_rcv_skb+0x130/0x360
[ 4075.403545][   T73]      netlink_unicast+0x449/0x710
[ 4075.403545][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4075.403545][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4075.403545][   T73]      ___sys_sendmsg+0xee/0x170
[ 4075.403545][   T73]      __sys_sendmsg+0xcd/0x170
[ 4075.403545][   T73]      do_syscall_64+0xc6/0x1e0
[ 4075.403545][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4075.403545][   T73] 
[ 4075.405537][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4075.405537][   T73]      netdev_get_by_index+0x5e/0x80
[ 4075.405537][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4075.405537][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4075.405537][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4075.405537][   T73]      ipv6_add_addr+0x411/0x2000
[ 4075.405537][   T73]      inet6_addr_add+0x30e/0xa40
[ 4075.405537][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4075.405537][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4075.405537][   T73]      netlink_rcv_skb+0x130/0x360
[ 4075.405537][   T73]      netlink_unicast+0x449/0x710
[ 4075.405537][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4075.405537][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4075.405537][   T73]      ___sys_sendmsg+0xee/0x170
[ 4075.405537][   T73]      __sys_sendmsg+0xcd/0x170
[ 4075.405537][   T73]      do_syscall_64+0xc6/0x1e0
[ 4075.405537][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4075.405537][   T73] 
[ 4075.407530][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4075.407530][   T73]      netdev_get_by_index+0x5e/0x80
[ 4075.407530][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4075.407530][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4075.407530][   T73]      ip6_route_add+0x1c/0x140
[ 4075.407530][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4075.407530][   T73]      addrconf_add_dev+0xe2/0x170
[ 4075.407530][   T73]      inet6_addr_add+0x12f/0xa40
[ 4075.407530][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4075.407530][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4075.407530][   T73]      netlink_rcv_skb+0x130/0x360
[ 4075.407530][   T73]      netlink_unicast+0x449/0x710
[ 4075.407530][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4075.407530][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4075.407530][   T73]      ___sys_sendmsg+0xee/0x170
[ 4075.407530][   T73]      __sys_sendmsg+0xcd/0x170
[ 4075.407530][   T73]      do_syscall_64+0xc6/0x1e0
[ 4075.407530][   T73] 
[ 4075.409480][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4075.409480][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4075.409480][   T73]      ipv6_find_idev+0x102/0x170
[ 4075.409480][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4075.409480][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4075.409480][   T73]      netlink_rcv_skb+0x130/0x360
[ 4075.409480][   T73]      netlink_unicast+0x449/0x710
[ 4075.409480][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4075.409480][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4075.409480][   T73]      ___sys_sendmsg+0xee/0x170
[ 4075.409480][   T73]      __sys_sendmsg+0xcd/0x170
[ 4075.409480][   T73]      do_syscall_64+0xc6/0x1e0
[ 4075.409480][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4075.409480][   T73] 
[ 4075.411014][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4075.411014][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4075.411014][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4075.411014][   T73]      ipv6_find_idev+0x102/0x170
[ 4075.411014][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4075.411014][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4075.411014][   T73]      netlink_rcv_skb+0x130/0x360
[ 4075.411014][   T73]      netlink_unicast+0x449/0x710
[ 4075.411014][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4075.411014][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4075.411014][   T73]      ___sys_sendmsg+0xee/0x170
[ 4075.411014][   T73]      __sys_sendmsg+0xcd/0x170
[ 4075.411014][   T73]      do_syscall_64+0xc6/0x1e0
[ 4075.411014][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4075.411014][   T73] 
[ 4075.412693][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4075.412964][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4075.412964][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4075.412964][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4075.412964][   T73]      fib6_nh_init+0xa22/0x1580
[ 4075.412964][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4075.412964][   T73]      ip6_route_add+0x1c/0x140
[ 4075.412964][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4075.412964][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4075.412964][   T73]      netlink_rcv_skb+0x130/0x360
[ 4075.412964][   T73]      netlink_unicast+0x449/0x710
[ 4075.412964][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4075.412964][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4075.412964][   T73]      ___sys_sendmsg+0xee/0x170
[ 4075.412964][   T73]      __sys_sendmsg+0xcd/0x170
[ 4075.412964][   T73]      do_syscall_64+0xc6/0x1e0
[ 4075.412964][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4075.412964][   T73] 
[ 4075.415027][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4075.415027][   T73]      dst_init+0x84/0x4a0
[ 4075.415027][   T73]      dst_alloc+0x97/0x150
[ 4075.415027][   T73]      ip6_dst_alloc+0x23/0x90
[ 4075.415027][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4075.415027][   T73]      ip6_pol_route+0x56f/0x840
[ 4075.415027][   T73]      fib6_rule_lookup+0x456/0x630
[ 4075.415027][   T73]      ip6_route_input+0x59c/0xa50
[ 4075.415027][   T73]      ipv6_rcv+0x397/0x810
[ 4075.415027][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4075.415027][   T73]      process_backlog+0x101/0x620
[ 4075.415027][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4075.415027][   T73]      net_rx_action+0x495/0xbe0
[ 4075.415027][   T73]      __do_softirq+0x1b5/0x7f6
[ 4075.415027][   T73] 
[ 4075.416850][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4075.416850][   T73]      netdev_get_by_index+0x5e/0x80
[ 4075.416850][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4075.416850][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4075.416850][   T73]      ip6_route_add+0x1c/0x140
[ 4075.416850][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4075.416850][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4075.416850][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4075.416850][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4075.416850][   T73]      netlink_rcv_skb+0x130/0x360
[ 4075.416850][   T73]      netlink_unicast+0x449/0x710
[ 4075.416850][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4075.416850][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4075.416850][   T73]      ___sys_sendmsg+0xee/0x170
[ 4075.416850][   T73]      __sys_sendmsg+0xcd/0x170
[ 4075.416850][   T73]      do_syscall_64+0xc6/0x1e0
[ 4075.416850][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4075.416850][   T73] 
[ 4075.419153][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4075.419153][   T73]      netdev_get_by_index+0x5e/0x80
[ 4075.419153][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4075.419153][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4075.419153][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4075.419153][   T73]      ipv6_add_addr+0x411/0x2000
[ 4075.419153][   T73]      inet6_addr_add+0x30e/0xa40
[ 4075.419153][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4075.419153][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4075.419153][   T73]      netlink_rcv_skb+0x130/0x360
[ 4075.419153][   T73]      netlink_unicast+0x449/0x710
[ 4075.419153][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4075.419153][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4075.419153][   T73]      ___sys_sendmsg+0xee/0x170
[ 4075.419153][   T73]      __sys_sendmsg+0xcd/0x170
[ 4075.419153][   T73]      do_syscall_64+0xc6/0x1e0
[ 4075.419153][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4075.419153][   T73] 
[ 4075.421385][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4075.421385][   T73]      netdev_get_by_index+0x5e/0x80
[ 4075.421385][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4075.421385][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4075.421385][   T73]      ip6_route_add+0x1c/0x140
[ 4075.421385][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4075.421385][   T73]      addrconf_add_dev+0xe2/0x170
[ 4075.421385][   T73]      inet6_addr_add+0x12f/0xa40
[ 4075.421385][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4075.421385][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4075.421385][   T73]      netlink_rcv_skb+0x130/0x360
[ 4075.421385][   T73]      netlink_unicast+0x449/0x710
[ 4075.421385][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4075.421385][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4075.421385][   T73]      ___sys_sendmsg+0xee/0x170
[ 4075.421385][   T73]      __sys_sendmsg+0xcd/0x170
[ 4075.421385][   T73]      do_syscall_64+0xc6/0x1e0
[ 4075.421385][   T73] 
[ 4075.423729][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4075.423729][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4075.423729][   T73]      ipv6_find_idev+0x102/0x170
[ 4075.423729][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4075.423729][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4075.423729][   T73]      netlink_rcv_skb+0x130/0x360
[ 4075.423729][   T73]      netlink_unicast+0x449/0x710
[ 4075.423729][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4075.423729][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4075.423729][   T73]      ___sys_sendmsg+0xee/0x170
[ 4075.423729][   T73]      __sys_sendmsg+0xcd/0x170
[ 4075.423729][   T73]      do_syscall_64+0xc6/0x1e0
[ 4075.423729][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4075.423729][   T73] 
[ 4075.425587][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4075.425587][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4075.425587][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4075.425587][   T73]      ipv6_find_idev+0x102/0x170
[ 4075.425587][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4075.425587][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4075.425587][   T73]      netlink_rcv_skb+0x130/0x360
[ 4075.425587][   T73]      netlink_unicast+0x449/0x710
[ 4075.425587][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4075.425587][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4075.425587][   T73]      ___sys_sendmsg+0xee/0x170
[ 4075.425587][   T73]      __sys_sendmsg+0xcd/0x170
[ 4075.425587][   T73]      do_syscall_64+0xc6/0x1e0
[ 4075.425587][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4075.425587][   T73] 
[ 4075.427593][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4075.428314][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4075.428314][   T73]      netdev_get_by_index+0x5e/0x80
[ 4075.428314][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4075.428314][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4075.428314][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4075.428314][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4075.428314][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4075.428314][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4075.428314][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4075.428314][   T73]      addrconf_dad_begin+0x310/0x670
[ 4075.428314][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4075.428314][   T73]      process_one_work+0x84d/0x18a0
[ 4075.428314][   T73]      worker_thread+0x587/0xd30
[ 4075.428314][   T73]      kthread+0x28a/0x350
[ 4075.428314][   T73]      ret_from_fork+0x31/0x70
[ 4075.428314][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4075.428314][   T73] 
[ 4075.430786][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4075.430786][   T73]      netdev_get_by_index+0x5e/0x80
[ 4075.430786][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4075.430786][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4075.430786][   T73]      ip6_route_add+0x1c/0x140
[ 4075.430786][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4075.430786][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4075.430786][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4075.430786][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4075.430786][   T73]      netlink_rcv_skb+0x130/0x360
[ 4075.430786][   T73]      netlink_unicast+0x449/0x710
[ 4075.430786][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4075.430786][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4075.430786][   T73]      ___sys_sendmsg+0xee/0x170
[ 4075.430786][   T73]      __sys_sendmsg+0xcd/0x170
[ 4075.430786][   T73]      do_syscall_64+0xc6/0x1e0
[ 4075.430786][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4075.430786][   T73] 
[ 4075.432994][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4075.432994][   T73]      netdev_get_by_index+0x5e/0x80
[ 4075.432994][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4075.432994][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4075.432994][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4075.432994][   T73]      ipv6_add_addr+0x411/0x2000
[ 4075.432994][   T73]      inet6_addr_add+0x30e/0xa40
[ 4075.432994][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4075.432994][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4075.432994][   T73]      netlink_rcv_skb+0x130/0x360
[ 4075.432994][   T73]      netlink_unicast+0x449/0x710
[ 4075.432994][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4075.432994][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4075.432994][   T73]      ___sys_sendmsg+0xee/0x170
[ 4075.432994][   T73]      __sys_sendmsg+0xcd/0x170
[ 4075.432994][   T73]      do_syscall_64+0xc6/0x1e0
[ 4075.432994][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4075.432994][   T73] 
[ 4075.435245][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4075.435245][   T73]      netdev_get_by_index+0x5e/0x80
[ 4075.435245][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4075.435245][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4075.435245][   T73]      ip6_route_add+0x1c/0x140
[ 4075.435245][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4075.435245][   T73]      addrconf_add_dev+0xe2/0x170
[ 4075.435245][   T73]      inet6_addr_add+0x12f/0xa40
[ 4075.435245][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4075.435245][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4075.435245][   T73]      netlink_rcv_skb+0x130/0x360
[ 4075.435245][   T73]      netlink_unicast+0x449/0x710
[ 4075.435245][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4075.435245][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4075.435245][   T73]      ___sys_sendmsg+0xee/0x170
[ 4075.435245][   T73]      __sys_sendmsg+0xcd/0x170
[ 4075.435245][   T73]      do_syscall_64+0xc6/0x1e0
[ 4075.435245][   T73] 
[ 4075.437439][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4075.437439][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4075.437439][   T73]      ipv6_find_idev+0x102/0x170
[ 4075.437439][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4075.437439][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4075.437439][   T73]      netlink_rcv_skb+0x130/0x360
[ 4075.437439][   T73]      netlink_unicast+0x449/0x710
[ 4075.437439][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4075.437439][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4075.437439][   T73]      ___sys_sendmsg+0xee/0x170
[ 4075.437439][   T73]      __sys_sendmsg+0xcd/0x170
[ 4075.437439][   T73]      do_syscall_64+0xc6/0x1e0
[ 4075.437439][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4075.437439][   T73] 
[ 4075.439188][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4075.439188][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4075.439188][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4075.439188][   T73]      ipv6_find_idev+0x102/0x170
[ 4075.439188][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4075.439188][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4075.439188][   T73]      netlink_rcv_skb+0x130/0x360
[ 4075.439188][   T73]      netlink_unicast+0x449/0x710
[ 4075.439188][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4075.439188][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4075.439188][   T73]      ___sys_sendmsg+0xee/0x170
[ 4075.439188][   T73]      __sys_sendmsg+0xcd/0x170
[ 4075.439188][   T73]      do_syscall_64+0xc6/0x1e0
[ 4075.439188][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4075.439188][   T73] 
[ 4085.527782][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4085.528292][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4085.528292][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4085.528292][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4085.528292][   T73]      fib6_nh_init+0xa22/0x1580
[ 4085.528292][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4085.528292][   T73]      ip6_route_add+0x1c/0x140
[ 4085.528292][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4085.528292][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4085.528292][   T73]      netlink_rcv_skb+0x130/0x360
[ 4085.528292][   T73]      netlink_unicast+0x449/0x710
[ 4085.528292][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4085.528292][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4085.528292][   T73]      ___sys_sendmsg+0xee/0x170
[ 4085.528292][   T73]      __sys_sendmsg+0xcd/0x170
[ 4085.528292][   T73]      do_syscall_64+0xc6/0x1e0
[ 4085.528292][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4085.528292][   T73] 
[ 4085.530274][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4085.530274][   T73]      dst_init+0x84/0x4a0
[ 4085.530274][   T73]      dst_alloc+0x97/0x150
[ 4085.530274][   T73]      ip6_dst_alloc+0x23/0x90
[ 4085.530274][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4085.530274][   T73]      ip6_pol_route+0x56f/0x840
[ 4085.530274][   T73]      fib6_rule_lookup+0x456/0x630
[ 4085.530274][   T73]      ip6_route_input+0x59c/0xa50
[ 4085.530274][   T73]      ipv6_rcv+0x397/0x810
[ 4085.530274][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4085.530274][   T73]      process_backlog+0x101/0x620
[ 4085.530274][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4085.530274][   T73]      net_rx_action+0x495/0xbe0
[ 4085.530274][   T73]      __do_softirq+0x1b5/0x7f6
[ 4085.530274][   T73] 
[ 4085.531904][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4085.531904][   T73]      netdev_get_by_index+0x5e/0x80
[ 4085.531904][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4085.531904][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4085.531904][   T73]      ip6_route_add+0x1c/0x140
[ 4085.531904][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4085.531904][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4085.531904][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4085.531904][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4085.531904][   T73]      netlink_rcv_skb+0x130/0x360
[ 4085.531904][   T73]      netlink_unicast+0x449/0x710
[ 4085.531904][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4085.531904][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4085.531904][   T73]      ___sys_sendmsg+0xee/0x170
[ 4085.531904][   T73]      __sys_sendmsg+0xcd/0x170
[ 4085.531904][   T73]      do_syscall_64+0xc6/0x1e0
[ 4085.531904][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4085.531904][   T73] 
[ 4085.533893][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4085.533893][   T73]      netdev_get_by_index+0x5e/0x80
[ 4085.533893][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4085.533893][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4085.533893][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4085.533893][   T73]      ipv6_add_addr+0x411/0x2000
[ 4085.533893][   T73]      inet6_addr_add+0x30e/0xa40
[ 4085.533893][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4085.533893][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4085.533893][   T73]      netlink_rcv_skb+0x130/0x360
[ 4085.533893][   T73]      netlink_unicast+0x449/0x710
[ 4085.533893][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4085.533893][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4085.533893][   T73]      ___sys_sendmsg+0xee/0x170
[ 4085.533893][   T73]      __sys_sendmsg+0xcd/0x170
[ 4085.533893][   T73]      do_syscall_64+0xc6/0x1e0
[ 4085.533893][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4085.533893][   T73] 
[ 4085.535895][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4085.535895][   T73]      netdev_get_by_index+0x5e/0x80
[ 4085.535895][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4085.535895][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4085.535895][   T73]      ip6_route_add+0x1c/0x140
[ 4085.535895][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4085.535895][   T73]      addrconf_add_dev+0xe2/0x170
[ 4085.535895][   T73]      inet6_addr_add+0x12f/0xa40
[ 4085.535895][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4085.535895][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4085.535895][   T73]      netlink_rcv_skb+0x130/0x360
[ 4085.535895][   T73]      netlink_unicast+0x449/0x710
[ 4085.535895][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4085.535895][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4085.535895][   T73]      ___sys_sendmsg+0xee/0x170
[ 4085.535895][   T73]      __sys_sendmsg+0xcd/0x170
[ 4085.535895][   T73]      do_syscall_64+0xc6/0x1e0
[ 4085.535895][   T73] 
[ 4085.537854][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4085.537854][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4085.537854][   T73]      ipv6_find_idev+0x102/0x170
[ 4085.537854][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4085.537854][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4085.537854][   T73]      netlink_rcv_skb+0x130/0x360
[ 4085.537854][   T73]      netlink_unicast+0x449/0x710
[ 4085.537854][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4085.537854][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4085.537854][   T73]      ___sys_sendmsg+0xee/0x170
[ 4085.537854][   T73]      __sys_sendmsg+0xcd/0x170
[ 4085.537854][   T73]      do_syscall_64+0xc6/0x1e0
[ 4085.537854][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4085.537854][   T73] 
[ 4085.539385][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4085.539385][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4085.539385][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4085.539385][   T73]      ipv6_find_idev+0x102/0x170
[ 4085.539385][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4085.539385][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4085.539385][   T73]      netlink_rcv_skb+0x130/0x360
[ 4085.539385][   T73]      netlink_unicast+0x449/0x710
[ 4085.539385][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4085.539385][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4085.539385][   T73]      ___sys_sendmsg+0xee/0x170
[ 4085.539385][   T73]      __sys_sendmsg+0xcd/0x170
[ 4085.539385][   T73]      do_syscall_64+0xc6/0x1e0
[ 4085.539385][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4085.539385][   T73] 
[ 4085.541486][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4085.541791][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4085.541791][   T73]      netdev_get_by_index+0x5e/0x80
[ 4085.541791][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4085.541791][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4085.541791][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4085.541791][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4085.541791][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4085.541791][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4085.541791][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4085.541791][   T73]      addrconf_dad_begin+0x310/0x670
[ 4085.541791][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4085.541791][   T73]      process_one_work+0x84d/0x18a0
[ 4085.541791][   T73]      worker_thread+0x587/0xd30
[ 4085.541791][   T73]      kthread+0x28a/0x350
[ 4085.541791][   T73]      ret_from_fork+0x31/0x70
[ 4085.541791][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4085.541791][   T73] 
[ 4085.543694][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4085.543694][   T73]      netdev_get_by_index+0x5e/0x80
[ 4085.543694][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4085.543694][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4085.543694][   T73]      ip6_route_add+0x1c/0x140
[ 4085.543694][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4085.543694][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4085.543694][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4085.543694][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4085.543694][   T73]      netlink_rcv_skb+0x130/0x360
[ 4085.543694][   T73]      netlink_unicast+0x449/0x710
[ 4085.543694][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4085.543694][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4085.543694][   T73]      ___sys_sendmsg+0xee/0x170
[ 4085.543694][   T73]      __sys_sendmsg+0xcd/0x170
[ 4085.543694][   T73]      do_syscall_64+0xc6/0x1e0
[ 4085.543694][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4085.543694][   T73] 
[ 4085.545686][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4085.545686][   T73]      netdev_get_by_index+0x5e/0x80
[ 4085.545686][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4085.545686][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4085.545686][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4085.545686][   T73]      ipv6_add_addr+0x411/0x2000
[ 4085.545686][   T73]      inet6_addr_add+0x30e/0xa40
[ 4085.545686][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4085.545686][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4085.545686][   T73]      netlink_rcv_skb+0x130/0x360
[ 4085.545686][   T73]      netlink_unicast+0x449/0x710
[ 4085.545686][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4085.545686][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4085.545686][   T73]      ___sys_sendmsg+0xee/0x170
[ 4085.545686][   T73]      __sys_sendmsg+0xcd/0x170
[ 4085.545686][   T73]      do_syscall_64+0xc6/0x1e0
[ 4085.545686][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4085.545686][   T73] 
[ 4085.547666][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4085.547666][   T73]      netdev_get_by_index+0x5e/0x80
[ 4085.547666][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4085.547666][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4085.547666][   T73]      ip6_route_add+0x1c/0x140
[ 4085.547666][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4085.547666][   T73]      addrconf_add_dev+0xe2/0x170
[ 4085.547666][   T73]      inet6_addr_add+0x12f/0xa40
[ 4085.547666][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4085.547666][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4085.547666][   T73]      netlink_rcv_skb+0x130/0x360
[ 4085.547666][   T73]      netlink_unicast+0x449/0x710
[ 4085.547666][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4085.547666][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4085.547666][   T73]      ___sys_sendmsg+0xee/0x170
[ 4085.547666][   T73]      __sys_sendmsg+0xcd/0x170
[ 4085.547666][   T73]      do_syscall_64+0xc6/0x1e0
[ 4085.547666][   T73] 
[ 4085.549618][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4085.549618][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4085.549618][   T73]      ipv6_find_idev+0x102/0x170
[ 4085.549618][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4085.549618][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4085.549618][   T73]      netlink_rcv_skb+0x130/0x360
[ 4085.549618][   T73]      netlink_unicast+0x449/0x710
[ 4085.549618][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4085.549618][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4085.549618][   T73]      ___sys_sendmsg+0xee/0x170
[ 4085.549618][   T73]      __sys_sendmsg+0xcd/0x170
[ 4085.549618][   T73]      do_syscall_64+0xc6/0x1e0
[ 4085.549618][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4085.549618][   T73] 
[ 4085.554797][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4085.554797][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4085.554797][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4085.554797][   T73]      ipv6_find_idev+0x102/0x170
[ 4085.554797][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4085.554797][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4085.554797][   T73]      netlink_rcv_skb+0x130/0x360
[ 4085.554797][   T73]      netlink_unicast+0x449/0x710
[ 4085.554797][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4085.554797][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4085.554797][   T73]      ___sys_sendmsg+0xee/0x170
[ 4085.554797][   T73]      __sys_sendmsg+0xcd/0x170
[ 4085.554797][   T73]      do_syscall_64+0xc6/0x1e0
[ 4085.554797][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4085.554797][   T73] 
[ 4085.556495][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4085.556809][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4085.556809][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4085.556809][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4085.556809][   T73]      fib6_nh_init+0xa22/0x1580
[ 4085.556809][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4085.556809][   T73]      ip6_route_add+0x1c/0x140
[ 4085.556809][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4085.556809][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4085.556809][   T73]      netlink_rcv_skb+0x130/0x360
[ 4085.556809][   T73]      netlink_unicast+0x449/0x710
[ 4085.556809][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4085.556809][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4085.556809][   T73]      ___sys_sendmsg+0xee/0x170
[ 4085.556809][   T73]      __sys_sendmsg+0xcd/0x170
[ 4085.556809][   T73]      do_syscall_64+0xc6/0x1e0
[ 4085.556809][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4085.556809][   T73] 
[ 4085.558997][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4085.558997][   T73]      dst_init+0x84/0x4a0
[ 4085.558997][   T73]      dst_alloc+0x97/0x150
[ 4085.558997][   T73]      ip6_dst_alloc+0x23/0x90
[ 4085.558997][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4085.558997][   T73]      ip6_pol_route+0x56f/0x840
[ 4085.558997][   T73]      fib6_rule_lookup+0x456/0x630
[ 4085.558997][   T73]      ip6_route_input+0x59c/0xa50
[ 4085.558997][   T73]      ipv6_rcv+0x397/0x810
[ 4085.558997][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4085.558997][   T73]      process_backlog+0x101/0x620
[ 4085.558997][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4085.558997][   T73]      net_rx_action+0x495/0xbe0
[ 4085.558997][   T73]      __do_softirq+0x1b5/0x7f6
[ 4085.558997][   T73] 
[ 4085.560878][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4085.560878][   T73]      netdev_get_by_index+0x5e/0x80
[ 4085.560878][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4085.560878][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4085.560878][   T73]      ip6_route_add+0x1c/0x140
[ 4085.560878][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4085.560878][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4085.560878][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4085.560878][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4085.560878][   T73]      netlink_rcv_skb+0x130/0x360
[ 4085.560878][   T73]      netlink_unicast+0x449/0x710
[ 4085.560878][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4085.560878][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4085.560878][   T73]      ___sys_sendmsg+0xee/0x170
[ 4085.560878][   T73]      __sys_sendmsg+0xcd/0x170
[ 4085.560878][   T73]      do_syscall_64+0xc6/0x1e0
[ 4085.560878][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4085.560878][   T73] 
[ 4085.563109][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4085.563109][   T73]      netdev_get_by_index+0x5e/0x80
[ 4085.563109][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4085.563109][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4085.563109][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4085.563109][   T73]      ipv6_add_addr+0x411/0x2000
[ 4085.563109][   T73]      inet6_addr_add+0x30e/0xa40
[ 4085.563109][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4085.563109][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4085.563109][   T73]      netlink_rcv_skb+0x130/0x360
[ 4085.563109][   T73]      netlink_unicast+0x449/0x710
[ 4085.563109][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4085.563109][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4085.563109][   T73]      ___sys_sendmsg+0xee/0x170
[ 4085.563109][   T73]      __sys_sendmsg+0xcd/0x170
[ 4085.563109][   T73]      do_syscall_64+0xc6/0x1e0
[ 4085.563109][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4085.563109][   T73] 
[ 4085.565334][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4085.565334][   T73]      netdev_get_by_index+0x5e/0x80
[ 4085.565334][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4085.565334][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4085.565334][   T73]      ip6_route_add+0x1c/0x140
[ 4085.565334][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4085.565334][   T73]      addrconf_add_dev+0xe2/0x170
[ 4085.565334][   T73]      inet6_addr_add+0x12f/0xa40
[ 4085.565334][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4085.565334][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4085.565334][   T73]      netlink_rcv_skb+0x130/0x360
[ 4085.565334][   T73]      netlink_unicast+0x449/0x710
[ 4085.565334][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4085.565334][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4085.565334][   T73]      ___sys_sendmsg+0xee/0x170
[ 4085.565334][   T73]      __sys_sendmsg+0xcd/0x170
[ 4085.565334][   T73]      do_syscall_64+0xc6/0x1e0
[ 4085.565334][   T73] 
[ 4085.567486][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4085.567486][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4085.567486][   T73]      ipv6_find_idev+0x102/0x170
[ 4085.567486][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4085.567486][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4085.567486][   T73]      netlink_rcv_skb+0x130/0x360
[ 4085.567486][   T73]      netlink_unicast+0x449/0x710
[ 4085.567486][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4085.567486][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4085.567486][   T73]      ___sys_sendmsg+0xee/0x170
[ 4085.567486][   T73]      __sys_sendmsg+0xcd/0x170
[ 4085.567486][   T73]      do_syscall_64+0xc6/0x1e0
[ 4085.567486][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4085.567486][   T73] 
[ 4085.569261][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4085.569261][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4085.569261][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4085.569261][   T73]      ipv6_find_idev+0x102/0x170
[ 4085.569261][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4085.569261][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4085.569261][   T73]      netlink_rcv_skb+0x130/0x360
[ 4085.569261][   T73]      netlink_unicast+0x449/0x710
[ 4085.569261][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4085.569261][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4085.569261][   T73]      ___sys_sendmsg+0xee/0x170
[ 4085.569261][   T73]      __sys_sendmsg+0xcd/0x170
[ 4085.569261][   T73]      do_syscall_64+0xc6/0x1e0
[ 4085.569261][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4085.569261][   T73] 
[ 4085.571192][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4085.571469][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4085.571469][   T73]      netdev_get_by_index+0x5e/0x80
[ 4085.571469][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4085.571469][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4085.571469][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4085.571469][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4085.571469][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4085.571469][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4085.571469][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4085.571469][   T73]      addrconf_dad_begin+0x310/0x670
[ 4085.571469][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4085.571469][   T73]      process_one_work+0x84d/0x18a0
[ 4085.571469][   T73]      worker_thread+0x587/0xd30
[ 4085.571469][   T73]      kthread+0x28a/0x350
[ 4085.571469][   T73]      ret_from_fork+0x31/0x70
[ 4085.571469][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4085.571469][   T73] 
[ 4085.573612][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4085.573612][   T73]      netdev_get_by_index+0x5e/0x80
[ 4085.573612][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4085.573612][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4085.573612][   T73]      ip6_route_add+0x1c/0x140
[ 4085.573612][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4085.573612][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4085.573612][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4085.573612][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4085.573612][   T73]      netlink_rcv_skb+0x130/0x360
[ 4085.573612][   T73]      netlink_unicast+0x449/0x710
[ 4085.573612][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4085.573612][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4085.573612][   T73]      ___sys_sendmsg+0xee/0x170
[ 4085.573612][   T73]      __sys_sendmsg+0xcd/0x170
[ 4085.573612][   T73]      do_syscall_64+0xc6/0x1e0
[ 4085.573612][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4085.573612][   T73] 
[ 4085.575793][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4085.575793][   T73]      netdev_get_by_index+0x5e/0x80
[ 4085.575793][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4085.575793][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4085.575793][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4085.575793][   T73]      ipv6_add_addr+0x411/0x2000
[ 4085.575793][   T73]      inet6_addr_add+0x30e/0xa40
[ 4085.575793][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4085.575793][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4085.575793][   T73]      netlink_rcv_skb+0x130/0x360
[ 4085.575793][   T73]      netlink_unicast+0x449/0x710
[ 4085.575793][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4085.575793][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4085.575793][   T73]      ___sys_sendmsg+0xee/0x170
[ 4085.575793][   T73]      __sys_sendmsg+0xcd/0x170
[ 4085.575793][   T73]      do_syscall_64+0xc6/0x1e0
[ 4085.575793][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4085.575793][   T73] 
[ 4085.578026][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4085.578026][   T73]      netdev_get_by_index+0x5e/0x80
[ 4085.578026][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4085.578026][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4085.578026][   T73]      ip6_route_add+0x1c/0x140
[ 4085.578026][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4085.578026][   T73]      addrconf_add_dev+0xe2/0x170
[ 4085.578026][   T73]      inet6_addr_add+0x12f/0xa40
[ 4085.578026][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4085.578026][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4085.578026][   T73]      netlink_rcv_skb+0x130/0x360
[ 4085.578026][   T73]      netlink_unicast+0x449/0x710
[ 4085.578026][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4085.578026][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4085.578026][   T73]      ___sys_sendmsg+0xee/0x170
[ 4085.578026][   T73]      __sys_sendmsg+0xcd/0x170
[ 4085.578026][   T73]      do_syscall_64+0xc6/0x1e0
[ 4085.578026][   T73] 
[ 4085.580276][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4085.580276][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4085.580276][   T73]      ipv6_find_idev+0x102/0x170
[ 4085.580276][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4085.580276][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4085.580276][   T73]      netlink_rcv_skb+0x130/0x360
[ 4085.580276][   T73]      netlink_unicast+0x449/0x710
[ 4085.580276][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4085.580276][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4085.580276][   T73]      ___sys_sendmsg+0xee/0x170
[ 4085.580276][   T73]      __sys_sendmsg+0xcd/0x170
[ 4085.580276][   T73]      do_syscall_64+0xc6/0x1e0
[ 4085.580276][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4085.580276][   T73] 
[ 4085.581994][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4085.581994][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4085.581994][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4085.581994][   T73]      ipv6_find_idev+0x102/0x170
[ 4085.581994][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4085.581994][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4085.581994][   T73]      netlink_rcv_skb+0x130/0x360
[ 4085.581994][   T73]      netlink_unicast+0x449/0x710
[ 4085.581994][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4085.581994][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4085.581994][   T73]      ___sys_sendmsg+0xee/0x170
[ 4085.581994][   T73]      __sys_sendmsg+0xcd/0x170
[ 4085.581994][   T73]      do_syscall_64+0xc6/0x1e0
[ 4085.581994][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4085.581994][   T73] 
[ 4095.823818][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4095.824306][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4095.824306][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4095.824306][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4095.824306][   T73]      fib6_nh_init+0xa22/0x1580
[ 4095.824306][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4095.824306][   T73]      ip6_route_add+0x1c/0x140
[ 4095.824306][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4095.824306][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4095.824306][   T73]      netlink_rcv_skb+0x130/0x360
[ 4095.824306][   T73]      netlink_unicast+0x449/0x710
[ 4095.824306][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4095.824306][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4095.824306][   T73]      ___sys_sendmsg+0xee/0x170
[ 4095.824306][   T73]      __sys_sendmsg+0xcd/0x170
[ 4095.824306][   T73]      do_syscall_64+0xc6/0x1e0
[ 4095.824306][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4095.824306][   T73] 
[ 4095.826214][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4095.826214][   T73]      dst_init+0x84/0x4a0
[ 4095.826214][   T73]      dst_alloc+0x97/0x150
[ 4095.826214][   T73]      ip6_dst_alloc+0x23/0x90
[ 4095.826214][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4095.826214][   T73]      ip6_pol_route+0x56f/0x840
[ 4095.826214][   T73]      fib6_rule_lookup+0x456/0x630
[ 4095.826214][   T73]      ip6_route_input+0x59c/0xa50
[ 4095.826214][   T73]      ipv6_rcv+0x397/0x810
[ 4095.826214][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4095.826214][   T73]      process_backlog+0x101/0x620
[ 4095.826214][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4095.826214][   T73]      net_rx_action+0x495/0xbe0
[ 4095.826214][   T73]      __do_softirq+0x1b5/0x7f6
[ 4095.826214][   T73] 
[ 4095.827843][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4095.827843][   T73]      netdev_get_by_index+0x5e/0x80
[ 4095.827843][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4095.827843][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4095.827843][   T73]      ip6_route_add+0x1c/0x140
[ 4095.827843][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4095.827843][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4095.827843][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4095.827843][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4095.827843][   T73]      netlink_rcv_skb+0x130/0x360
[ 4095.827843][   T73]      netlink_unicast+0x449/0x710
[ 4095.827843][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4095.827843][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4095.827843][   T73]      ___sys_sendmsg+0xee/0x170
[ 4095.827843][   T73]      __sys_sendmsg+0xcd/0x170
[ 4095.827843][   T73]      do_syscall_64+0xc6/0x1e0
[ 4095.827843][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4095.827843][   T73] 
[ 4095.830216][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4095.830216][   T73]      netdev_get_by_index+0x5e/0x80
[ 4095.830216][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4095.830216][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4095.830216][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4095.830216][   T73]      ipv6_add_addr+0x411/0x2000
[ 4095.830216][   T73]      inet6_addr_add+0x30e/0xa40
[ 4095.830216][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4095.830216][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4095.830216][   T73]      netlink_rcv_skb+0x130/0x360
[ 4095.830216][   T73]      netlink_unicast+0x449/0x710
[ 4095.830216][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4095.830216][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4095.830216][   T73]      ___sys_sendmsg+0xee/0x170
[ 4095.830216][   T73]      __sys_sendmsg+0xcd/0x170
[ 4095.830216][   T73]      do_syscall_64+0xc6/0x1e0
[ 4095.830216][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4095.830216][   T73] 
[ 4095.832206][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4095.832206][   T73]      netdev_get_by_index+0x5e/0x80
[ 4095.832206][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4095.832206][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4095.832206][   T73]      ip6_route_add+0x1c/0x140
[ 4095.832206][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4095.832206][   T73]      addrconf_add_dev+0xe2/0x170
[ 4095.832206][   T73]      inet6_addr_add+0x12f/0xa40
[ 4095.832206][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4095.832206][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4095.832206][   T73]      netlink_rcv_skb+0x130/0x360
[ 4095.832206][   T73]      netlink_unicast+0x449/0x710
[ 4095.832206][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4095.832206][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4095.832206][   T73]      ___sys_sendmsg+0xee/0x170
[ 4095.832206][   T73]      __sys_sendmsg+0xcd/0x170
[ 4095.832206][   T73]      do_syscall_64+0xc6/0x1e0
[ 4095.832206][   T73] 
[ 4095.834283][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4095.834283][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4095.834283][   T73]      ipv6_find_idev+0x102/0x170
[ 4095.834283][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4095.834283][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4095.834283][   T73]      netlink_rcv_skb+0x130/0x360
[ 4095.834283][   T73]      netlink_unicast+0x449/0x710
[ 4095.834283][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4095.834283][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4095.834283][   T73]      ___sys_sendmsg+0xee/0x170
[ 4095.834283][   T73]      __sys_sendmsg+0xcd/0x170
[ 4095.834283][   T73]      do_syscall_64+0xc6/0x1e0
[ 4095.834283][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4095.834283][   T73] 
[ 4095.835825][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4095.835825][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4095.835825][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4095.835825][   T73]      ipv6_find_idev+0x102/0x170
[ 4095.835825][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4095.835825][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4095.835825][   T73]      netlink_rcv_skb+0x130/0x360
[ 4095.835825][   T73]      netlink_unicast+0x449/0x710
[ 4095.835825][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4095.835825][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4095.835825][   T73]      ___sys_sendmsg+0xee/0x170
[ 4095.835825][   T73]      __sys_sendmsg+0xcd/0x170
[ 4095.835825][   T73]      do_syscall_64+0xc6/0x1e0
[ 4095.835825][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4095.835825][   T73] 
[ 4095.837528][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4095.837824][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4095.837824][   T73]      netdev_get_by_index+0x5e/0x80
[ 4095.837824][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4095.837824][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4095.837824][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4095.837824][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4095.837824][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4095.837824][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4095.837824][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4095.837824][   T73]      addrconf_dad_begin+0x310/0x670
[ 4095.837824][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4095.837824][   T73]      process_one_work+0x84d/0x18a0
[ 4095.837824][   T73]      worker_thread+0x587/0xd30
[ 4095.837824][   T73]      kthread+0x28a/0x350
[ 4095.837824][   T73]      ret_from_fork+0x31/0x70
[ 4095.837824][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4095.837824][   T73] 
[ 4095.839735][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4095.839735][   T73]      netdev_get_by_index+0x5e/0x80
[ 4095.839735][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4095.839735][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4095.839735][   T73]      ip6_route_add+0x1c/0x140
[ 4095.839735][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4095.839735][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4095.839735][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4095.839735][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4095.839735][   T73]      netlink_rcv_skb+0x130/0x360
[ 4095.839735][   T73]      netlink_unicast+0x449/0x710
[ 4095.839735][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4095.839735][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4095.839735][   T73]      ___sys_sendmsg+0xee/0x170
[ 4095.839735][   T73]      __sys_sendmsg+0xcd/0x170
[ 4095.839735][   T73]      do_syscall_64+0xc6/0x1e0
[ 4095.839735][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4095.839735][   T73] 
[ 4095.841723][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4095.841723][   T73]      netdev_get_by_index+0x5e/0x80
[ 4095.841723][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4095.841723][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4095.841723][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4095.841723][   T73]      ipv6_add_addr+0x411/0x2000
[ 4095.841723][   T73]      inet6_addr_add+0x30e/0xa40
[ 4095.841723][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4095.841723][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4095.841723][   T73]      netlink_rcv_skb+0x130/0x360
[ 4095.841723][   T73]      netlink_unicast+0x449/0x710
[ 4095.841723][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4095.841723][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4095.841723][   T73]      ___sys_sendmsg+0xee/0x170
[ 4095.841723][   T73]      __sys_sendmsg+0xcd/0x170
[ 4095.841723][   T73]      do_syscall_64+0xc6/0x1e0
[ 4095.841723][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4095.841723][   T73] 
[ 4095.843711][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4095.843711][   T73]      netdev_get_by_index+0x5e/0x80
[ 4095.843711][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4095.843711][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4095.843711][   T73]      ip6_route_add+0x1c/0x140
[ 4095.843711][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4095.843711][   T73]      addrconf_add_dev+0xe2/0x170
[ 4095.843711][   T73]      inet6_addr_add+0x12f/0xa40
[ 4095.843711][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4095.843711][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4095.843711][   T73]      netlink_rcv_skb+0x130/0x360
[ 4095.843711][   T73]      netlink_unicast+0x449/0x710
[ 4095.843711][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4095.843711][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4095.843711][   T73]      ___sys_sendmsg+0xee/0x170
[ 4095.843711][   T73]      __sys_sendmsg+0xcd/0x170
[ 4095.843711][   T73]      do_syscall_64+0xc6/0x1e0
[ 4095.843711][   T73] 
[ 4095.845672][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4095.845672][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4095.845672][   T73]      ipv6_find_idev+0x102/0x170
[ 4095.845672][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4095.845672][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4095.845672][   T73]      netlink_rcv_skb+0x130/0x360
[ 4095.845672][   T73]      netlink_unicast+0x449/0x710
[ 4095.845672][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4095.845672][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4095.845672][   T73]      ___sys_sendmsg+0xee/0x170
[ 4095.845672][   T73]      __sys_sendmsg+0xcd/0x170
[ 4095.845672][   T73]      do_syscall_64+0xc6/0x1e0
[ 4095.845672][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4095.845672][   T73] 
[ 4095.847206][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4095.847206][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4095.847206][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4095.847206][   T73]      ipv6_find_idev+0x102/0x170
[ 4095.847206][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4095.847206][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4095.847206][   T73]      netlink_rcv_skb+0x130/0x360
[ 4095.847206][   T73]      netlink_unicast+0x449/0x710
[ 4095.847206][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4095.847206][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4095.847206][   T73]      ___sys_sendmsg+0xee/0x170
[ 4095.847206][   T73]      __sys_sendmsg+0xcd/0x170
[ 4095.847206][   T73]      do_syscall_64+0xc6/0x1e0
[ 4095.847206][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4095.847206][   T73] 
[ 4095.848885][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4095.849156][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4095.849156][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4095.849156][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4095.849156][   T73]      fib6_nh_init+0xa22/0x1580
[ 4095.849156][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4095.849156][   T73]      ip6_route_add+0x1c/0x140
[ 4095.849156][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4095.849156][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4095.849156][   T73]      netlink_rcv_skb+0x130/0x360
[ 4095.849156][   T73]      netlink_unicast+0x449/0x710
[ 4095.849156][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4095.849156][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4095.849156][   T73]      ___sys_sendmsg+0xee/0x170
[ 4095.849156][   T73]      __sys_sendmsg+0xcd/0x170
[ 4095.849156][   T73]      do_syscall_64+0xc6/0x1e0
[ 4095.849156][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4095.849156][   T73] 
[ 4095.851228][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4095.851228][   T73]      dst_init+0x84/0x4a0
[ 4095.851228][   T73]      dst_alloc+0x97/0x150
[ 4095.851228][   T73]      ip6_dst_alloc+0x23/0x90
[ 4095.851228][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4095.851228][   T73]      ip6_pol_route+0x56f/0x840
[ 4095.851228][   T73]      fib6_rule_lookup+0x456/0x630
[ 4095.851228][   T73]      ip6_route_input+0x59c/0xa50
[ 4095.851228][   T73]      ipv6_rcv+0x397/0x810
[ 4095.851228][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4095.851228][   T73]      process_backlog+0x101/0x620
[ 4095.851228][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4095.851228][   T73]      net_rx_action+0x495/0xbe0
[ 4095.851228][   T73]      __do_softirq+0x1b5/0x7f6
[ 4095.851228][   T73] 
[ 4095.853041][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4095.853041][   T73]      netdev_get_by_index+0x5e/0x80
[ 4095.853041][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4095.853041][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4095.853041][   T73]      ip6_route_add+0x1c/0x140
[ 4095.853041][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4095.853041][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4095.853041][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4095.853041][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4095.853041][   T73]      netlink_rcv_skb+0x130/0x360
[ 4095.853041][   T73]      netlink_unicast+0x449/0x710
[ 4095.853041][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4095.853041][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4095.853041][   T73]      ___sys_sendmsg+0xee/0x170
[ 4095.853041][   T73]      __sys_sendmsg+0xcd/0x170
[ 4095.853041][   T73]      do_syscall_64+0xc6/0x1e0
[ 4095.853041][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4095.853041][   T73] 
[ 4095.855277][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4095.855277][   T73]      netdev_get_by_index+0x5e/0x80
[ 4095.855277][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4095.855277][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4095.855277][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4095.855277][   T73]      ipv6_add_addr+0x411/0x2000
[ 4095.855277][   T73]      inet6_addr_add+0x30e/0xa40
[ 4095.855277][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4095.855277][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4095.855277][   T73]      netlink_rcv_skb+0x130/0x360
[ 4095.855277][   T73]      netlink_unicast+0x449/0x710
[ 4095.855277][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4095.855277][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4095.855277][   T73]      ___sys_sendmsg+0xee/0x170
[ 4095.855277][   T73]      __sys_sendmsg+0xcd/0x170
[ 4095.855277][   T73]      do_syscall_64+0xc6/0x1e0
[ 4095.855277][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4095.855277][   T73] 
[ 4095.857533][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4095.857533][   T73]      netdev_get_by_index+0x5e/0x80
[ 4095.857533][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4095.857533][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4095.857533][   T73]      ip6_route_add+0x1c/0x140
[ 4095.857533][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4095.857533][   T73]      addrconf_add_dev+0xe2/0x170
[ 4095.857533][   T73]      inet6_addr_add+0x12f/0xa40
[ 4095.857533][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4095.857533][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4095.857533][   T73]      netlink_rcv_skb+0x130/0x360
[ 4095.857533][   T73]      netlink_unicast+0x449/0x710
[ 4095.857533][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4095.857533][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4095.857533][   T73]      ___sys_sendmsg+0xee/0x170
[ 4095.857533][   T73]      __sys_sendmsg+0xcd/0x170
[ 4095.857533][   T73]      do_syscall_64+0xc6/0x1e0
[ 4095.857533][   T73] 
[ 4095.859734][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4095.859734][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4095.859734][   T73]      ipv6_find_idev+0x102/0x170
[ 4095.859734][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4095.859734][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4095.859734][   T73]      netlink_rcv_skb+0x130/0x360
[ 4095.859734][   T73]      netlink_unicast+0x449/0x710
[ 4095.859734][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4095.859734][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4095.859734][   T73]      ___sys_sendmsg+0xee/0x170
[ 4095.859734][   T73]      __sys_sendmsg+0xcd/0x170
[ 4095.859734][   T73]      do_syscall_64+0xc6/0x1e0
[ 4095.859734][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4095.859734][   T73] 
[ 4095.861442][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4095.861442][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4095.861442][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4095.861442][   T73]      ipv6_find_idev+0x102/0x170
[ 4095.861442][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4095.861442][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4095.861442][   T73]      netlink_rcv_skb+0x130/0x360
[ 4095.861442][   T73]      netlink_unicast+0x449/0x710
[ 4095.861442][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4095.861442][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4095.861442][   T73]      ___sys_sendmsg+0xee/0x170
[ 4095.861442][   T73]      __sys_sendmsg+0xcd/0x170
[ 4095.861442][   T73]      do_syscall_64+0xc6/0x1e0
[ 4095.861442][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4095.861442][   T73] 
[ 4095.863302][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4095.863636][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4095.863636][   T73]      netdev_get_by_index+0x5e/0x80
[ 4095.863636][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4095.863636][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4095.863636][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4095.863636][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4095.863636][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4095.863636][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4095.863636][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4095.863636][   T73]      addrconf_dad_begin+0x310/0x670
[ 4095.863636][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4095.863636][   T73]      process_one_work+0x84d/0x18a0
[ 4095.863636][   T73]      worker_thread+0x587/0xd30
[ 4095.863636][   T73]      kthread+0x28a/0x350
[ 4095.863636][   T73]      ret_from_fork+0x31/0x70
[ 4095.863636][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4095.863636][   T73] 
[ 4095.865671][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4095.865671][   T73]      netdev_get_by_index+0x5e/0x80
[ 4095.865671][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4095.865671][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4095.865671][   T73]      ip6_route_add+0x1c/0x140
[ 4095.865671][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4095.865671][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4095.865671][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4095.865671][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4095.865671][   T73]      netlink_rcv_skb+0x130/0x360
[ 4095.865671][   T73]      netlink_unicast+0x449/0x710
[ 4095.865671][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4095.865671][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4095.865671][   T73]      ___sys_sendmsg+0xee/0x170
[ 4095.865671][   T73]      __sys_sendmsg+0xcd/0x170
[ 4095.865671][   T73]      do_syscall_64+0xc6/0x1e0
[ 4095.865671][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4095.865671][   T73] 
[ 4095.867962][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4095.867962][   T73]      netdev_get_by_index+0x5e/0x80
[ 4095.867962][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4095.867962][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4095.867962][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4095.867962][   T73]      ipv6_add_addr+0x411/0x2000
[ 4095.867962][   T73]      inet6_addr_add+0x30e/0xa40
[ 4095.867962][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4095.867962][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4095.867962][   T73]      netlink_rcv_skb+0x130/0x360
[ 4095.867962][   T73]      netlink_unicast+0x449/0x710
[ 4095.867962][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4095.867962][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4095.867962][   T73]      ___sys_sendmsg+0xee/0x170
[ 4095.867962][   T73]      __sys_sendmsg+0xcd/0x170
[ 4095.867962][   T73]      do_syscall_64+0xc6/0x1e0
[ 4095.867962][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4095.867962][   T73] 
[ 4095.870188][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4095.870188][   T73]      netdev_get_by_index+0x5e/0x80
[ 4095.870188][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4095.870188][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4095.870188][   T73]      ip6_route_add+0x1c/0x140
[ 4095.870188][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4095.870188][   T73]      addrconf_add_dev+0xe2/0x170
[ 4095.870188][   T73]      inet6_addr_add+0x12f/0xa40
[ 4095.870188][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4095.870188][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4095.870188][   T73]      netlink_rcv_skb+0x130/0x360
[ 4095.870188][   T73]      netlink_unicast+0x449/0x710
[ 4095.870188][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4095.870188][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4095.870188][   T73]      ___sys_sendmsg+0xee/0x170
[ 4095.870188][   T73]      __sys_sendmsg+0xcd/0x170
[ 4095.870188][   T73]      do_syscall_64+0xc6/0x1e0
[ 4095.870188][   T73] 
[ 4095.872388][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4095.872388][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4095.872388][   T73]      ipv6_find_idev+0x102/0x170
[ 4095.872388][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4095.872388][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4095.872388][   T73]      netlink_rcv_skb+0x130/0x360
[ 4095.872388][   T73]      netlink_unicast+0x449/0x710
[ 4095.872388][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4095.872388][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4095.872388][   T73]      ___sys_sendmsg+0xee/0x170
[ 4095.872388][   T73]      __sys_sendmsg+0xcd/0x170
[ 4095.872388][   T73]      do_syscall_64+0xc6/0x1e0
[ 4095.872388][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4095.872388][   T73] 
[ 4095.874095][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4095.874095][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4095.874095][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4095.874095][   T73]      ipv6_find_idev+0x102/0x170
[ 4095.874095][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4095.874095][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4095.874095][   T73]      netlink_rcv_skb+0x130/0x360
[ 4095.874095][   T73]      netlink_unicast+0x449/0x710
[ 4095.874095][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4095.874095][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4095.874095][   T73]      ___sys_sendmsg+0xee/0x170
[ 4095.874095][   T73]      __sys_sendmsg+0xcd/0x170
[ 4095.874095][   T73]      do_syscall_64+0xc6/0x1e0
[ 4095.874095][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4095.874095][   T73] 
[ 4106.095768][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4106.096244][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4106.096244][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4106.096244][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4106.096244][   T73]      fib6_nh_init+0xa22/0x1580
[ 4106.096244][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4106.096244][   T73]      ip6_route_add+0x1c/0x140
[ 4106.096244][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4106.096244][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4106.096244][   T73]      netlink_rcv_skb+0x130/0x360
[ 4106.096244][   T73]      netlink_unicast+0x449/0x710
[ 4106.096244][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4106.096244][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4106.096244][   T73]      ___sys_sendmsg+0xee/0x170
[ 4106.096244][   T73]      __sys_sendmsg+0xcd/0x170
[ 4106.096244][   T73]      do_syscall_64+0xc6/0x1e0
[ 4106.096244][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4106.096244][   T73] 
[ 4106.098173][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4106.098173][   T73]      dst_init+0x84/0x4a0
[ 4106.098173][   T73]      dst_alloc+0x97/0x150
[ 4106.098173][   T73]      ip6_dst_alloc+0x23/0x90
[ 4106.098173][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4106.098173][   T73]      ip6_pol_route+0x56f/0x840
[ 4106.098173][   T73]      fib6_rule_lookup+0x456/0x630
[ 4106.098173][   T73]      ip6_route_input+0x59c/0xa50
[ 4106.098173][   T73]      ipv6_rcv+0x397/0x810
[ 4106.098173][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4106.098173][   T73]      process_backlog+0x101/0x620
[ 4106.098173][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4106.098173][   T73]      net_rx_action+0x495/0xbe0
[ 4106.098173][   T73]      __do_softirq+0x1b5/0x7f6
[ 4106.098173][   T73] 
[ 4106.099815][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4106.099815][   T73]      netdev_get_by_index+0x5e/0x80
[ 4106.099815][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4106.099815][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4106.099815][   T73]      ip6_route_add+0x1c/0x140
[ 4106.099815][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4106.099815][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4106.099815][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4106.099815][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4106.099815][   T73]      netlink_rcv_skb+0x130/0x360
[ 4106.099815][   T73]      netlink_unicast+0x449/0x710
[ 4106.099815][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4106.099815][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4106.099815][   T73]      ___sys_sendmsg+0xee/0x170
[ 4106.099815][   T73]      __sys_sendmsg+0xcd/0x170
[ 4106.099815][   T73]      do_syscall_64+0xc6/0x1e0
[ 4106.099815][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4106.099815][   T73] 
[ 4106.102342][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4106.102342][   T73]      netdev_get_by_index+0x5e/0x80
[ 4106.102342][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4106.102342][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4106.102342][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4106.102342][   T73]      ipv6_add_addr+0x411/0x2000
[ 4106.102342][   T73]      inet6_addr_add+0x30e/0xa40
[ 4106.102342][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4106.102342][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4106.102342][   T73]      netlink_rcv_skb+0x130/0x360
[ 4106.102342][   T73]      netlink_unicast+0x449/0x710
[ 4106.102342][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4106.102342][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4106.102342][   T73]      ___sys_sendmsg+0xee/0x170
[ 4106.102342][   T73]      __sys_sendmsg+0xcd/0x170
[ 4106.102342][   T73]      do_syscall_64+0xc6/0x1e0
[ 4106.102342][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4106.102342][   T73] 
[ 4106.104331][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4106.104331][   T73]      netdev_get_by_index+0x5e/0x80
[ 4106.104331][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4106.104331][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4106.104331][   T73]      ip6_route_add+0x1c/0x140
[ 4106.104331][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4106.104331][   T73]      addrconf_add_dev+0xe2/0x170
[ 4106.104331][   T73]      inet6_addr_add+0x12f/0xa40
[ 4106.104331][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4106.104331][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4106.104331][   T73]      netlink_rcv_skb+0x130/0x360
[ 4106.104331][   T73]      netlink_unicast+0x449/0x710
[ 4106.104331][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4106.104331][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4106.104331][   T73]      ___sys_sendmsg+0xee/0x170
[ 4106.104331][   T73]      __sys_sendmsg+0xcd/0x170
[ 4106.104331][   T73]      do_syscall_64+0xc6/0x1e0
[ 4106.104331][   T73] 
[ 4106.106292][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4106.106292][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4106.106292][   T73]      ipv6_find_idev+0x102/0x170
[ 4106.106292][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4106.106292][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4106.106292][   T73]      netlink_rcv_skb+0x130/0x360
[ 4106.106292][   T73]      netlink_unicast+0x449/0x710
[ 4106.106292][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4106.106292][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4106.106292][   T73]      ___sys_sendmsg+0xee/0x170
[ 4106.106292][   T73]      __sys_sendmsg+0xcd/0x170
[ 4106.106292][   T73]      do_syscall_64+0xc6/0x1e0
[ 4106.106292][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4106.106292][   T73] 
[ 4106.107830][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4106.107830][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4106.107830][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4106.107830][   T73]      ipv6_find_idev+0x102/0x170
[ 4106.107830][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4106.107830][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4106.107830][   T73]      netlink_rcv_skb+0x130/0x360
[ 4106.107830][   T73]      netlink_unicast+0x449/0x710
[ 4106.107830][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4106.107830][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4106.107830][   T73]      ___sys_sendmsg+0xee/0x170
[ 4106.107830][   T73]      __sys_sendmsg+0xcd/0x170
[ 4106.107830][   T73]      do_syscall_64+0xc6/0x1e0
[ 4106.107830][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4106.107830][   T73] 
[ 4106.109521][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4106.109814][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4106.109814][   T73]      netdev_get_by_index+0x5e/0x80
[ 4106.109814][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4106.109814][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4106.109814][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4106.109814][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4106.109814][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4106.109814][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4106.109814][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4106.109814][   T73]      addrconf_dad_begin+0x310/0x670
[ 4106.109814][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4106.109814][   T73]      process_one_work+0x84d/0x18a0
[ 4106.109814][   T73]      worker_thread+0x587/0xd30
[ 4106.109814][   T73]      kthread+0x28a/0x350
[ 4106.109814][   T73]      ret_from_fork+0x31/0x70
[ 4106.109814][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4106.109814][   T73] 
[ 4106.111722][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4106.111722][   T73]      netdev_get_by_index+0x5e/0x80
[ 4106.111722][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4106.111722][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4106.111722][   T73]      ip6_route_add+0x1c/0x140
[ 4106.111722][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4106.111722][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4106.111722][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4106.111722][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4106.111722][   T73]      netlink_rcv_skb+0x130/0x360
[ 4106.111722][   T73]      netlink_unicast+0x449/0x710
[ 4106.111722][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4106.111722][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4106.111722][   T73]      ___sys_sendmsg+0xee/0x170
[ 4106.111722][   T73]      __sys_sendmsg+0xcd/0x170
[ 4106.111722][   T73]      do_syscall_64+0xc6/0x1e0
[ 4106.111722][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4106.111722][   T73] 
[ 4106.113705][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4106.113705][   T73]      netdev_get_by_index+0x5e/0x80
[ 4106.113705][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4106.113705][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4106.113705][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4106.113705][   T73]      ipv6_add_addr+0x411/0x2000
[ 4106.113705][   T73]      inet6_addr_add+0x30e/0xa40
[ 4106.113705][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4106.113705][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4106.113705][   T73]      netlink_rcv_skb+0x130/0x360
[ 4106.113705][   T73]      netlink_unicast+0x449/0x710
[ 4106.113705][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4106.113705][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4106.113705][   T73]      ___sys_sendmsg+0xee/0x170
[ 4106.113705][   T73]      __sys_sendmsg+0xcd/0x170
[ 4106.113705][   T73]      do_syscall_64+0xc6/0x1e0
[ 4106.113705][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4106.113705][   T73] 
[ 4106.115701][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4106.115701][   T73]      netdev_get_by_index+0x5e/0x80
[ 4106.115701][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4106.115701][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4106.115701][   T73]      ip6_route_add+0x1c/0x140
[ 4106.115701][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4106.115701][   T73]      addrconf_add_dev+0xe2/0x170
[ 4106.115701][   T73]      inet6_addr_add+0x12f/0xa40
[ 4106.115701][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4106.115701][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4106.115701][   T73]      netlink_rcv_skb+0x130/0x360
[ 4106.115701][   T73]      netlink_unicast+0x449/0x710
[ 4106.115701][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4106.115701][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4106.115701][   T73]      ___sys_sendmsg+0xee/0x170
[ 4106.115701][   T73]      __sys_sendmsg+0xcd/0x170
[ 4106.115701][   T73]      do_syscall_64+0xc6/0x1e0
[ 4106.115701][   T73] 
[ 4106.117650][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4106.117650][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4106.117650][   T73]      ipv6_find_idev+0x102/0x170
[ 4106.117650][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4106.117650][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4106.117650][   T73]      netlink_rcv_skb+0x130/0x360
[ 4106.117650][   T73]      netlink_unicast+0x449/0x710
[ 4106.117650][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4106.117650][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4106.117650][   T73]      ___sys_sendmsg+0xee/0x170
[ 4106.117650][   T73]      __sys_sendmsg+0xcd/0x170
[ 4106.117650][   T73]      do_syscall_64+0xc6/0x1e0
[ 4106.117650][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4106.117650][   T73] 
[ 4106.119178][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4106.119178][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4106.119178][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4106.119178][   T73]      ipv6_find_idev+0x102/0x170
[ 4106.119178][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4106.119178][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4106.119178][   T73]      netlink_rcv_skb+0x130/0x360
[ 4106.119178][   T73]      netlink_unicast+0x449/0x710
[ 4106.119178][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4106.119178][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4106.119178][   T73]      ___sys_sendmsg+0xee/0x170
[ 4106.119178][   T73]      __sys_sendmsg+0xcd/0x170
[ 4106.119178][   T73]      do_syscall_64+0xc6/0x1e0
[ 4106.119178][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4106.119178][   T73] 
[ 4106.120851][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4106.121132][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4106.121132][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4106.121132][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4106.121132][   T73]      fib6_nh_init+0xa22/0x1580
[ 4106.121132][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4106.121132][   T73]      ip6_route_add+0x1c/0x140
[ 4106.121132][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4106.121132][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4106.121132][   T73]      netlink_rcv_skb+0x130/0x360
[ 4106.121132][   T73]      netlink_unicast+0x449/0x710
[ 4106.121132][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4106.121132][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4106.121132][   T73]      ___sys_sendmsg+0xee/0x170
[ 4106.121132][   T73]      __sys_sendmsg+0xcd/0x170
[ 4106.121132][   T73]      do_syscall_64+0xc6/0x1e0
[ 4106.121132][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4106.121132][   T73] 
[ 4106.123183][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4106.123183][   T73]      dst_init+0x84/0x4a0
[ 4106.123183][   T73]      dst_alloc+0x97/0x150
[ 4106.123183][   T73]      ip6_dst_alloc+0x23/0x90
[ 4106.123183][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4106.123183][   T73]      ip6_pol_route+0x56f/0x840
[ 4106.123183][   T73]      fib6_rule_lookup+0x456/0x630
[ 4106.123183][   T73]      ip6_route_input+0x59c/0xa50
[ 4106.123183][   T73]      ipv6_rcv+0x397/0x810
[ 4106.123183][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4106.123183][   T73]      process_backlog+0x101/0x620
[ 4106.123183][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4106.123183][   T73]      net_rx_action+0x495/0xbe0
[ 4106.123183][   T73]      __do_softirq+0x1b5/0x7f6
[ 4106.123183][   T73] 
[ 4106.125061][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4106.125061][   T73]      netdev_get_by_index+0x5e/0x80
[ 4106.125061][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4106.125061][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4106.125061][   T73]      ip6_route_add+0x1c/0x140
[ 4106.125061][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4106.125061][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4106.125061][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4106.125061][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4106.125061][   T73]      netlink_rcv_skb+0x130/0x360
[ 4106.125061][   T73]      netlink_unicast+0x449/0x710
[ 4106.125061][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4106.125061][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4106.125061][   T73]      ___sys_sendmsg+0xee/0x170
[ 4106.125061][   T73]      __sys_sendmsg+0xcd/0x170
[ 4106.125061][   T73]      do_syscall_64+0xc6/0x1e0
[ 4106.125061][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4106.125061][   T73] 
[ 4106.127299][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4106.127299][   T73]      netdev_get_by_index+0x5e/0x80
[ 4106.127299][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4106.127299][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4106.127299][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4106.127299][   T73]      ipv6_add_addr+0x411/0x2000
[ 4106.127299][   T73]      inet6_addr_add+0x30e/0xa40
[ 4106.127299][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4106.127299][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4106.127299][   T73]      netlink_rcv_skb+0x130/0x360
[ 4106.127299][   T73]      netlink_unicast+0x449/0x710
[ 4106.127299][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4106.127299][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4106.127299][   T73]      ___sys_sendmsg+0xee/0x170
[ 4106.127299][   T73]      __sys_sendmsg+0xcd/0x170
[ 4106.127299][   T73]      do_syscall_64+0xc6/0x1e0
[ 4106.127299][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4106.127299][   T73] 
[ 4106.129464][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4106.129464][   T73]      netdev_get_by_index+0x5e/0x80
[ 4106.129464][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4106.129464][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4106.129464][   T73]      ip6_route_add+0x1c/0x140
[ 4106.129464][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4106.129464][   T73]      addrconf_add_dev+0xe2/0x170
[ 4106.129464][   T73]      inet6_addr_add+0x12f/0xa40
[ 4106.129464][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4106.129464][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4106.129464][   T73]      netlink_rcv_skb+0x130/0x360
[ 4106.129464][   T73]      netlink_unicast+0x449/0x710
[ 4106.129464][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4106.129464][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4106.129464][   T73]      ___sys_sendmsg+0xee/0x170
[ 4106.129464][   T73]      __sys_sendmsg+0xcd/0x170
[ 4106.129464][   T73]      do_syscall_64+0xc6/0x1e0
[ 4106.129464][   T73] 
[ 4106.131602][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4106.131602][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4106.131602][   T73]      ipv6_find_idev+0x102/0x170
[ 4106.131602][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4106.131602][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4106.131602][   T73]      netlink_rcv_skb+0x130/0x360
[ 4106.131602][   T73]      netlink_unicast+0x449/0x710
[ 4106.131602][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4106.131602][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4106.131602][   T73]      ___sys_sendmsg+0xee/0x170
[ 4106.131602][   T73]      __sys_sendmsg+0xcd/0x170
[ 4106.131602][   T73]      do_syscall_64+0xc6/0x1e0
[ 4106.131602][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4106.131602][   T73] 
[ 4106.133391][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4106.133391][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4106.133391][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4106.133391][   T73]      ipv6_find_idev+0x102/0x170
[ 4106.133391][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4106.133391][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4106.133391][   T73]      netlink_rcv_skb+0x130/0x360
[ 4106.133391][   T73]      netlink_unicast+0x449/0x710
[ 4106.133391][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4106.133391][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4106.133391][   T73]      ___sys_sendmsg+0xee/0x170
[ 4106.133391][   T73]      __sys_sendmsg+0xcd/0x170
[ 4106.133391][   T73]      do_syscall_64+0xc6/0x1e0
[ 4106.133391][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4106.133391][   T73] 
[ 4106.135241][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4106.135584][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4106.135584][   T73]      netdev_get_by_index+0x5e/0x80
[ 4106.135584][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4106.135584][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4106.135584][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4106.135584][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4106.135584][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4106.135584][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4106.135584][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4106.135584][   T73]      addrconf_dad_begin+0x310/0x670
[ 4106.135584][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4106.135584][   T73]      process_one_work+0x84d/0x18a0
[ 4106.135584][   T73]      worker_thread+0x587/0xd30
[ 4106.135584][   T73]      kthread+0x28a/0x350
[ 4106.135584][   T73]      ret_from_fork+0x31/0x70
[ 4106.135584][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4106.135584][   T73] 
[ 4106.137610][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4106.137610][   T73]      netdev_get_by_index+0x5e/0x80
[ 4106.137610][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4106.137610][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4106.137610][   T73]      ip6_route_add+0x1c/0x140
[ 4106.137610][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4106.137610][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4106.137610][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4106.137610][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4106.137610][   T73]      netlink_rcv_skb+0x130/0x360
[ 4106.137610][   T73]      netlink_unicast+0x449/0x710
[ 4106.137610][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4106.137610][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4106.137610][   T73]      ___sys_sendmsg+0xee/0x170
[ 4106.137610][   T73]      __sys_sendmsg+0xcd/0x170
[ 4106.137610][   T73]      do_syscall_64+0xc6/0x1e0
[ 4106.137610][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4106.137610][   T73] 
[ 4106.139843][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4106.139843][   T73]      netdev_get_by_index+0x5e/0x80
[ 4106.139843][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4106.139843][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4106.139843][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4106.139843][   T73]      ipv6_add_addr+0x411/0x2000
[ 4106.139843][   T73]      inet6_addr_add+0x30e/0xa40
[ 4106.139843][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4106.139843][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4106.139843][   T73]      netlink_rcv_skb+0x130/0x360
[ 4106.139843][   T73]      netlink_unicast+0x449/0x710
[ 4106.139843][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4106.139843][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4106.139843][   T73]      ___sys_sendmsg+0xee/0x170
[ 4106.139843][   T73]      __sys_sendmsg+0xcd/0x170
[ 4106.139843][   T73]      do_syscall_64+0xc6/0x1e0
[ 4106.139843][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4106.139843][   T73] 
[ 4106.143964][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4106.143964][   T73]      netdev_get_by_index+0x5e/0x80
[ 4106.143964][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4106.143964][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4106.143964][   T73]      ip6_route_add+0x1c/0x140
[ 4106.143964][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4106.143964][   T73]      addrconf_add_dev+0xe2/0x170
[ 4106.143964][   T73]      inet6_addr_add+0x12f/0xa40
[ 4106.143964][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4106.143964][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4106.143964][   T73]      netlink_rcv_skb+0x130/0x360
[ 4106.143964][   T73]      netlink_unicast+0x449/0x710
[ 4106.143964][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4106.143964][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4106.143964][   T73]      ___sys_sendmsg+0xee/0x170
[ 4106.143964][   T73]      __sys_sendmsg+0xcd/0x170
[ 4106.143964][   T73]      do_syscall_64+0xc6/0x1e0
[ 4106.143964][   T73] 
[ 4106.146258][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4106.146258][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4106.146258][   T73]      ipv6_find_idev+0x102/0x170
[ 4106.146258][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4106.146258][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4106.146258][   T73]      netlink_rcv_skb+0x130/0x360
[ 4106.146258][   T73]      netlink_unicast+0x449/0x710
[ 4106.146258][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4106.146258][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4106.146258][   T73]      ___sys_sendmsg+0xee/0x170
[ 4106.146258][   T73]      __sys_sendmsg+0xcd/0x170
[ 4106.146258][   T73]      do_syscall_64+0xc6/0x1e0
[ 4106.146258][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4106.146258][   T73] 
[ 4106.147981][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4106.147981][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4106.147981][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4106.147981][   T73]      ipv6_find_idev+0x102/0x170
[ 4106.147981][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4106.147981][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4106.147981][   T73]      netlink_rcv_skb+0x130/0x360
[ 4106.147981][   T73]      netlink_unicast+0x449/0x710
[ 4106.147981][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4106.147981][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4106.147981][   T73]      ___sys_sendmsg+0xee/0x170
[ 4106.147981][   T73]      __sys_sendmsg+0xcd/0x170
[ 4106.147981][   T73]      do_syscall_64+0xc6/0x1e0
[ 4106.147981][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4106.147981][   T73] 
[ 4116.399804][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4116.400253][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4116.400253][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4116.400253][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4116.400253][   T73]      fib6_nh_init+0xa22/0x1580
[ 4116.400253][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4116.400253][   T73]      ip6_route_add+0x1c/0x140
[ 4116.400253][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4116.400253][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4116.400253][   T73]      netlink_rcv_skb+0x130/0x360
[ 4116.400253][   T73]      netlink_unicast+0x449/0x710
[ 4116.400253][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4116.400253][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4116.400253][   T73]      ___sys_sendmsg+0xee/0x170
[ 4116.400253][   T73]      __sys_sendmsg+0xcd/0x170
[ 4116.400253][   T73]      do_syscall_64+0xc6/0x1e0
[ 4116.400253][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4116.400253][   T73] 
[ 4116.402382][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4116.402382][   T73]      dst_init+0x84/0x4a0
[ 4116.402382][   T73]      dst_alloc+0x97/0x150
[ 4116.402382][   T73]      ip6_dst_alloc+0x23/0x90
[ 4116.402382][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4116.402382][   T73]      ip6_pol_route+0x56f/0x840
[ 4116.402382][   T73]      fib6_rule_lookup+0x456/0x630
[ 4116.402382][   T73]      ip6_route_input+0x59c/0xa50
[ 4116.402382][   T73]      ipv6_rcv+0x397/0x810
[ 4116.402382][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4116.402382][   T73]      process_backlog+0x101/0x620
[ 4116.402382][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4116.402382][   T73]      net_rx_action+0x495/0xbe0
[ 4116.402382][   T73]      __do_softirq+0x1b5/0x7f6
[ 4116.402382][   T73] 
[ 4116.404212][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4116.404212][   T73]      netdev_get_by_index+0x5e/0x80
[ 4116.404212][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4116.404212][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4116.404212][   T73]      ip6_route_add+0x1c/0x140
[ 4116.404212][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4116.404212][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4116.404212][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4116.404212][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4116.404212][   T73]      netlink_rcv_skb+0x130/0x360
[ 4116.404212][   T73]      netlink_unicast+0x449/0x710
[ 4116.404212][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4116.404212][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4116.404212][   T73]      ___sys_sendmsg+0xee/0x170
[ 4116.404212][   T73]      __sys_sendmsg+0xcd/0x170
[ 4116.404212][   T73]      do_syscall_64+0xc6/0x1e0
[ 4116.404212][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4116.404212][   T73] 
[ 4116.406450][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4116.406450][   T73]      netdev_get_by_index+0x5e/0x80
[ 4116.406450][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4116.406450][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4116.406450][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4116.406450][   T73]      ipv6_add_addr+0x411/0x2000
[ 4116.406450][   T73]      inet6_addr_add+0x30e/0xa40
[ 4116.406450][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4116.406450][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4116.406450][   T73]      netlink_rcv_skb+0x130/0x360
[ 4116.406450][   T73]      netlink_unicast+0x449/0x710
[ 4116.406450][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4116.406450][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4116.406450][   T73]      ___sys_sendmsg+0xee/0x170
[ 4116.406450][   T73]      __sys_sendmsg+0xcd/0x170
[ 4116.406450][   T73]      do_syscall_64+0xc6/0x1e0
[ 4116.406450][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4116.406450][   T73] 
[ 4116.408663][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4116.408663][   T73]      netdev_get_by_index+0x5e/0x80
[ 4116.408663][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4116.408663][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4116.408663][   T73]      ip6_route_add+0x1c/0x140
[ 4116.408663][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4116.408663][   T73]      addrconf_add_dev+0xe2/0x170
[ 4116.408663][   T73]      inet6_addr_add+0x12f/0xa40
[ 4116.408663][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4116.408663][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4116.408663][   T73]      netlink_rcv_skb+0x130/0x360
[ 4116.408663][   T73]      netlink_unicast+0x449/0x710
[ 4116.408663][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4116.408663][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4116.408663][   T73]      ___sys_sendmsg+0xee/0x170
[ 4116.408663][   T73]      __sys_sendmsg+0xcd/0x170
[ 4116.408663][   T73]      do_syscall_64+0xc6/0x1e0
[ 4116.408663][   T73] 
[ 4116.410867][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4116.410867][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4116.410867][   T73]      ipv6_find_idev+0x102/0x170
[ 4116.410867][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4116.410867][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4116.410867][   T73]      netlink_rcv_skb+0x130/0x360
[ 4116.410867][   T73]      netlink_unicast+0x449/0x710
[ 4116.410867][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4116.410867][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4116.410867][   T73]      ___sys_sendmsg+0xee/0x170
[ 4116.410867][   T73]      __sys_sendmsg+0xcd/0x170
[ 4116.410867][   T73]      do_syscall_64+0xc6/0x1e0
[ 4116.410867][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4116.410867][   T73] 
[ 4116.412580][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4116.412580][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4116.412580][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4116.412580][   T73]      ipv6_find_idev+0x102/0x170
[ 4116.412580][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4116.412580][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4116.412580][   T73]      netlink_rcv_skb+0x130/0x360
[ 4116.412580][   T73]      netlink_unicast+0x449/0x710
[ 4116.412580][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4116.412580][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4116.412580][   T73]      ___sys_sendmsg+0xee/0x170
[ 4116.412580][   T73]      __sys_sendmsg+0xcd/0x170
[ 4116.412580][   T73]      do_syscall_64+0xc6/0x1e0
[ 4116.412580][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4116.412580][   T73] 
[ 4116.414458][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4116.414774][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4116.414774][   T73]      netdev_get_by_index+0x5e/0x80
[ 4116.414774][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4116.414774][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4116.414774][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4116.414774][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4116.414774][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4116.414774][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4116.414774][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4116.414774][   T73]      addrconf_dad_begin+0x310/0x670
[ 4116.414774][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4116.414774][   T73]      process_one_work+0x84d/0x18a0
[ 4116.414774][   T73]      worker_thread+0x587/0xd30
[ 4116.414774][   T73]      kthread+0x28a/0x350
[ 4116.414774][   T73]      ret_from_fork+0x31/0x70
[ 4116.414774][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4116.414774][   T73] 
[ 4116.416913][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4116.416913][   T73]      netdev_get_by_index+0x5e/0x80
[ 4116.416913][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4116.416913][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4116.416913][   T73]      ip6_route_add+0x1c/0x140
[ 4116.416913][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4116.416913][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4116.416913][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4116.416913][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4116.416913][   T73]      netlink_rcv_skb+0x130/0x360
[ 4116.416913][   T73]      netlink_unicast+0x449/0x710
[ 4116.416913][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4116.416913][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4116.416913][   T73]      ___sys_sendmsg+0xee/0x170
[ 4116.416913][   T73]      __sys_sendmsg+0xcd/0x170
[ 4116.416913][   T73]      do_syscall_64+0xc6/0x1e0
[ 4116.416913][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4116.416913][   T73] 
[ 4116.419134][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4116.419134][   T73]      netdev_get_by_index+0x5e/0x80
[ 4116.419134][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4116.419134][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4116.419134][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4116.419134][   T73]      ipv6_add_addr+0x411/0x2000
[ 4116.419134][   T73]      inet6_addr_add+0x30e/0xa40
[ 4116.419134][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4116.419134][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4116.419134][   T73]      netlink_rcv_skb+0x130/0x360
[ 4116.419134][   T73]      netlink_unicast+0x449/0x710
[ 4116.419134][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4116.419134][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4116.419134][   T73]      ___sys_sendmsg+0xee/0x170
[ 4116.419134][   T73]      __sys_sendmsg+0xcd/0x170
[ 4116.419134][   T73]      do_syscall_64+0xc6/0x1e0
[ 4116.419134][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4116.419134][   T73] 
[ 4116.421358][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4116.421358][   T73]      netdev_get_by_index+0x5e/0x80
[ 4116.421358][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4116.421358][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4116.421358][   T73]      ip6_route_add+0x1c/0x140
[ 4116.421358][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4116.421358][   T73]      addrconf_add_dev+0xe2/0x170
[ 4116.421358][   T73]      inet6_addr_add+0x12f/0xa40
[ 4116.421358][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4116.421358][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4116.421358][   T73]      netlink_rcv_skb+0x130/0x360
[ 4116.421358][   T73]      netlink_unicast+0x449/0x710
[ 4116.421358][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4116.421358][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4116.421358][   T73]      ___sys_sendmsg+0xee/0x170
[ 4116.421358][   T73]      __sys_sendmsg+0xcd/0x170
[ 4116.421358][   T73]      do_syscall_64+0xc6/0x1e0
[ 4116.421358][   T73] 
[ 4116.423538][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4116.423538][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4116.423538][   T73]      ipv6_find_idev+0x102/0x170
[ 4116.423538][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4116.423538][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4116.423538][   T73]      netlink_rcv_skb+0x130/0x360
[ 4116.423538][   T73]      netlink_unicast+0x449/0x710
[ 4116.423538][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4116.423538][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4116.423538][   T73]      ___sys_sendmsg+0xee/0x170
[ 4116.423538][   T73]      __sys_sendmsg+0xcd/0x170
[ 4116.423538][   T73]      do_syscall_64+0xc6/0x1e0
[ 4116.423538][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4116.423538][   T73] 
[ 4116.425252][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4116.425252][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4116.425252][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4116.425252][   T73]      ipv6_find_idev+0x102/0x170
[ 4116.425252][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4116.425252][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4116.425252][   T73]      netlink_rcv_skb+0x130/0x360
[ 4116.425252][   T73]      netlink_unicast+0x449/0x710
[ 4116.425252][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4116.425252][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4116.425252][   T73]      ___sys_sendmsg+0xee/0x170
[ 4116.425252][   T73]      __sys_sendmsg+0xcd/0x170
[ 4116.425252][   T73]      do_syscall_64+0xc6/0x1e0
[ 4116.425252][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4116.425252][   T73] 
[ 4116.427133][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4116.427423][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4116.427423][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4116.427423][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4116.427423][   T73]      fib6_nh_init+0xa22/0x1580
[ 4116.427423][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4116.427423][   T73]      ip6_route_add+0x1c/0x140
[ 4116.427423][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4116.427423][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4116.427423][   T73]      netlink_rcv_skb+0x130/0x360
[ 4116.427423][   T73]      netlink_unicast+0x449/0x710
[ 4116.427423][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4116.427423][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4116.427423][   T73]      ___sys_sendmsg+0xee/0x170
[ 4116.427423][   T73]      __sys_sendmsg+0xcd/0x170
[ 4116.427423][   T73]      do_syscall_64+0xc6/0x1e0
[ 4116.427423][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4116.427423][   T73] 
[ 4116.429679][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4116.429679][   T73]      dst_init+0x84/0x4a0
[ 4116.429679][   T73]      dst_alloc+0x97/0x150
[ 4116.429679][   T73]      ip6_dst_alloc+0x23/0x90
[ 4116.429679][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4116.429679][   T73]      ip6_pol_route+0x56f/0x840
[ 4116.429679][   T73]      fib6_rule_lookup+0x456/0x630
[ 4116.429679][   T73]      ip6_route_input+0x59c/0xa50
[ 4116.429679][   T73]      ipv6_rcv+0x397/0x810
[ 4116.429679][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4116.429679][   T73]      process_backlog+0x101/0x620
[ 4116.429679][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4116.429679][   T73]      net_rx_action+0x495/0xbe0
[ 4116.429679][   T73]      __do_softirq+0x1b5/0x7f6
[ 4116.429679][   T73] 
[ 4116.431678][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4116.431678][   T73]      netdev_get_by_index+0x5e/0x80
[ 4116.431678][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4116.431678][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4116.431678][   T73]      ip6_route_add+0x1c/0x140
[ 4116.431678][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4116.431678][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4116.431678][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4116.431678][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4116.431678][   T73]      netlink_rcv_skb+0x130/0x360
[ 4116.431678][   T73]      netlink_unicast+0x449/0x710
[ 4116.431678][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4116.431678][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4116.431678][   T73]      ___sys_sendmsg+0xee/0x170
[ 4116.431678][   T73]      __sys_sendmsg+0xcd/0x170
[ 4116.431678][   T73]      do_syscall_64+0xc6/0x1e0
[ 4116.431678][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4116.431678][   T73] 
[ 4116.434129][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4116.434129][   T73]      netdev_get_by_index+0x5e/0x80
[ 4116.434129][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4116.434129][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4116.434129][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4116.434129][   T73]      ipv6_add_addr+0x411/0x2000
[ 4116.434129][   T73]      inet6_addr_add+0x30e/0xa40
[ 4116.434129][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4116.434129][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4116.434129][   T73]      netlink_rcv_skb+0x130/0x360
[ 4116.434129][   T73]      netlink_unicast+0x449/0x710
[ 4116.434129][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4116.434129][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4116.434129][   T73]      ___sys_sendmsg+0xee/0x170
[ 4116.434129][   T73]      __sys_sendmsg+0xcd/0x170
[ 4116.434129][   T73]      do_syscall_64+0xc6/0x1e0
[ 4116.434129][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4116.434129][   T73] 
[ 4116.436581][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4116.436581][   T73]      netdev_get_by_index+0x5e/0x80
[ 4116.436581][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4116.436581][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4116.436581][   T73]      ip6_route_add+0x1c/0x140
[ 4116.436581][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4116.436581][   T73]      addrconf_add_dev+0xe2/0x170
[ 4116.436581][   T73]      inet6_addr_add+0x12f/0xa40
[ 4116.436581][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4116.436581][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4116.436581][   T73]      netlink_rcv_skb+0x130/0x360
[ 4116.436581][   T73]      netlink_unicast+0x449/0x710
[ 4116.436581][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4116.436581][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4116.436581][   T73]      ___sys_sendmsg+0xee/0x170
[ 4116.436581][   T73]      __sys_sendmsg+0xcd/0x170
[ 4116.436581][   T73]      do_syscall_64+0xc6/0x1e0
[ 4116.436581][   T73] 
[ 4116.438984][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4116.438984][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4116.438984][   T73]      ipv6_find_idev+0x102/0x170
[ 4116.438984][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4116.438984][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4116.438984][   T73]      netlink_rcv_skb+0x130/0x360
[ 4116.438984][   T73]      netlink_unicast+0x449/0x710
[ 4116.438984][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4116.438984][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4116.438984][   T73]      ___sys_sendmsg+0xee/0x170
[ 4116.438984][   T73]      __sys_sendmsg+0xcd/0x170
[ 4116.438984][   T73]      do_syscall_64+0xc6/0x1e0
[ 4116.438984][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4116.438984][   T73] 
[ 4116.440862][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4116.440862][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4116.440862][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4116.440862][   T73]      ipv6_find_idev+0x102/0x170
[ 4116.440862][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4116.440862][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4116.440862][   T73]      netlink_rcv_skb+0x130/0x360
[ 4116.440862][   T73]      netlink_unicast+0x449/0x710
[ 4116.440862][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4116.440862][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4116.440862][   T73]      ___sys_sendmsg+0xee/0x170
[ 4116.440862][   T73]      __sys_sendmsg+0xcd/0x170
[ 4116.440862][   T73]      do_syscall_64+0xc6/0x1e0
[ 4116.440862][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4116.440862][   T73] 
[ 4116.442978][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4116.443282][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4116.443282][   T73]      netdev_get_by_index+0x5e/0x80
[ 4116.443282][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4116.443282][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4116.443282][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4116.443282][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4116.443282][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4116.443282][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4116.443282][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4116.443282][   T73]      addrconf_dad_begin+0x310/0x670
[ 4116.443282][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4116.443282][   T73]      process_one_work+0x84d/0x18a0
[ 4116.443282][   T73]      worker_thread+0x587/0xd30
[ 4116.443282][   T73]      kthread+0x28a/0x350
[ 4116.443282][   T73]      ret_from_fork+0x31/0x70
[ 4116.443282][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4116.443282][   T73] 
[ 4116.445638][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4116.445638][   T73]      netdev_get_by_index+0x5e/0x80
[ 4116.445638][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4116.445638][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4116.445638][   T73]      ip6_route_add+0x1c/0x140
[ 4116.445638][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4116.445638][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4116.445638][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4116.445638][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4116.445638][   T73]      netlink_rcv_skb+0x130/0x360
[ 4116.445638][   T73]      netlink_unicast+0x449/0x710
[ 4116.445638][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4116.445638][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4116.445638][   T73]      ___sys_sendmsg+0xee/0x170
[ 4116.445638][   T73]      __sys_sendmsg+0xcd/0x170
[ 4116.445638][   T73]      do_syscall_64+0xc6/0x1e0
[ 4116.445638][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4116.445638][   T73] 
[ 4116.448147][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4116.448147][   T73]      netdev_get_by_index+0x5e/0x80
[ 4116.448147][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4116.448147][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4116.448147][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4116.448147][   T73]      ipv6_add_addr+0x411/0x2000
[ 4116.448147][   T73]      inet6_addr_add+0x30e/0xa40
[ 4116.448147][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4116.448147][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4116.448147][   T73]      netlink_rcv_skb+0x130/0x360
[ 4116.448147][   T73]      netlink_unicast+0x449/0x710
[ 4116.448147][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4116.448147][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4116.448147][   T73]      ___sys_sendmsg+0xee/0x170
[ 4116.448147][   T73]      __sys_sendmsg+0xcd/0x170
[ 4116.448147][   T73]      do_syscall_64+0xc6/0x1e0
[ 4116.448147][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4116.448147][   T73] 
[ 4116.450597][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4116.450597][   T73]      netdev_get_by_index+0x5e/0x80
[ 4116.450597][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4116.450597][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4116.450597][   T73]      ip6_route_add+0x1c/0x140
[ 4116.450597][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4116.450597][   T73]      addrconf_add_dev+0xe2/0x170
[ 4116.450597][   T73]      inet6_addr_add+0x12f/0xa40
[ 4116.450597][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4116.450597][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4116.450597][   T73]      netlink_rcv_skb+0x130/0x360
[ 4116.450597][   T73]      netlink_unicast+0x449/0x710
[ 4116.450597][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4116.450597][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4116.450597][   T73]      ___sys_sendmsg+0xee/0x170
[ 4116.450597][   T73]      __sys_sendmsg+0xcd/0x170
[ 4116.450597][   T73]      do_syscall_64+0xc6/0x1e0
[ 4116.450597][   T73] 
[ 4116.452937][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4116.452937][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4116.452937][   T73]      ipv6_find_idev+0x102/0x170
[ 4116.452937][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4116.452937][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4116.452937][   T73]      netlink_rcv_skb+0x130/0x360
[ 4116.452937][   T73]      netlink_unicast+0x449/0x710
[ 4116.452937][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4116.452937][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4116.452937][   T73]      ___sys_sendmsg+0xee/0x170
[ 4116.452937][   T73]      __sys_sendmsg+0xcd/0x170
[ 4116.452937][   T73]      do_syscall_64+0xc6/0x1e0
[ 4116.452937][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4116.452937][   T73] 
[ 4116.454812][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4116.454812][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4116.454812][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4116.454812][   T73]      ipv6_find_idev+0x102/0x170
[ 4116.454812][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4116.454812][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4116.454812][   T73]      netlink_rcv_skb+0x130/0x360
[ 4116.454812][   T73]      netlink_unicast+0x449/0x710
[ 4116.454812][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4116.454812][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4116.454812][   T73]      ___sys_sendmsg+0xee/0x170
[ 4116.454812][   T73]      __sys_sendmsg+0xcd/0x170
[ 4116.454812][   T73]      do_syscall_64+0xc6/0x1e0
[ 4116.454812][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4116.454812][   T73] 
[ 4126.535771][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4126.536289][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4126.536289][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4126.536289][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4126.536289][   T73]      fib6_nh_init+0xa22/0x1580
[ 4126.536289][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4126.536289][   T73]      ip6_route_add+0x1c/0x140
[ 4126.536289][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4126.536289][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4126.536289][   T73]      netlink_rcv_skb+0x130/0x360
[ 4126.536289][   T73]      netlink_unicast+0x449/0x710
[ 4126.536289][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4126.536289][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4126.536289][   T73]      ___sys_sendmsg+0xee/0x170
[ 4126.536289][   T73]      __sys_sendmsg+0xcd/0x170
[ 4126.536289][   T73]      do_syscall_64+0xc6/0x1e0
[ 4126.536289][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4126.536289][   T73] 
[ 4126.538314][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4126.538314][   T73]      dst_init+0x84/0x4a0
[ 4126.538314][   T73]      dst_alloc+0x97/0x150
[ 4126.538314][   T73]      ip6_dst_alloc+0x23/0x90
[ 4126.538314][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4126.538314][   T73]      ip6_pol_route+0x56f/0x840
[ 4126.538314][   T73]      fib6_rule_lookup+0x456/0x630
[ 4126.538314][   T73]      ip6_route_input+0x59c/0xa50
[ 4126.538314][   T73]      ipv6_rcv+0x397/0x810
[ 4126.538314][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4126.538314][   T73]      process_backlog+0x101/0x620
[ 4126.538314][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4126.538314][   T73]      net_rx_action+0x495/0xbe0
[ 4126.538314][   T73]      __do_softirq+0x1b5/0x7f6
[ 4126.538314][   T73] 
[ 4126.539969][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4126.539969][   T73]      netdev_get_by_index+0x5e/0x80
[ 4126.539969][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4126.539969][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4126.539969][   T73]      ip6_route_add+0x1c/0x140
[ 4126.539969][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4126.539969][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4126.539969][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4126.539969][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4126.539969][   T73]      netlink_rcv_skb+0x130/0x360
[ 4126.539969][   T73]      netlink_unicast+0x449/0x710
[ 4126.539969][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4126.539969][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4126.539969][   T73]      ___sys_sendmsg+0xee/0x170
[ 4126.539969][   T73]      __sys_sendmsg+0xcd/0x170
[ 4126.539969][   T73]      do_syscall_64+0xc6/0x1e0
[ 4126.539969][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4126.539969][   T73] 
[ 4126.541980][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4126.541980][   T73]      netdev_get_by_index+0x5e/0x80
[ 4126.541980][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4126.541980][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4126.541980][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4126.541980][   T73]      ipv6_add_addr+0x411/0x2000
[ 4126.541980][   T73]      inet6_addr_add+0x30e/0xa40
[ 4126.541980][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4126.541980][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4126.541980][   T73]      netlink_rcv_skb+0x130/0x360
[ 4126.541980][   T73]      netlink_unicast+0x449/0x710
[ 4126.541980][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4126.541980][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4126.541980][   T73]      ___sys_sendmsg+0xee/0x170
[ 4126.541980][   T73]      __sys_sendmsg+0xcd/0x170
[ 4126.541980][   T73]      do_syscall_64+0xc6/0x1e0
[ 4126.541980][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4126.541980][   T73] 
[ 4126.543992][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4126.543992][   T73]      netdev_get_by_index+0x5e/0x80
[ 4126.543992][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4126.543992][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4126.543992][   T73]      ip6_route_add+0x1c/0x140
[ 4126.543992][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4126.543992][   T73]      addrconf_add_dev+0xe2/0x170
[ 4126.543992][   T73]      inet6_addr_add+0x12f/0xa40
[ 4126.543992][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4126.543992][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4126.543992][   T73]      netlink_rcv_skb+0x130/0x360
[ 4126.543992][   T73]      netlink_unicast+0x449/0x710
[ 4126.543992][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4126.543992][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4126.543992][   T73]      ___sys_sendmsg+0xee/0x170
[ 4126.543992][   T73]      __sys_sendmsg+0xcd/0x170
[ 4126.543992][   T73]      do_syscall_64+0xc6/0x1e0
[ 4126.543992][   T73] 
[ 4126.545974][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4126.545974][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4126.545974][   T73]      ipv6_find_idev+0x102/0x170
[ 4126.545974][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4126.545974][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4126.545974][   T73]      netlink_rcv_skb+0x130/0x360
[ 4126.545974][   T73]      netlink_unicast+0x449/0x710
[ 4126.545974][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4126.545974][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4126.545974][   T73]      ___sys_sendmsg+0xee/0x170
[ 4126.545974][   T73]      __sys_sendmsg+0xcd/0x170
[ 4126.545974][   T73]      do_syscall_64+0xc6/0x1e0
[ 4126.545974][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4126.545974][   T73] 
[ 4126.547523][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4126.547523][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4126.547523][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4126.547523][   T73]      ipv6_find_idev+0x102/0x170
[ 4126.547523][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4126.547523][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4126.547523][   T73]      netlink_rcv_skb+0x130/0x360
[ 4126.547523][   T73]      netlink_unicast+0x449/0x710
[ 4126.547523][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4126.547523][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4126.547523][   T73]      ___sys_sendmsg+0xee/0x170
[ 4126.547523][   T73]      __sys_sendmsg+0xcd/0x170
[ 4126.547523][   T73]      do_syscall_64+0xc6/0x1e0
[ 4126.547523][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4126.547523][   T73] 
[ 4126.549247][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4126.549534][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4126.549534][   T73]      netdev_get_by_index+0x5e/0x80
[ 4126.549534][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4126.549534][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4126.549534][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4126.549534][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4126.549534][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4126.549534][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4126.549534][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4126.549534][   T73]      addrconf_dad_begin+0x310/0x670
[ 4126.549534][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4126.549534][   T73]      process_one_work+0x84d/0x18a0
[ 4126.549534][   T73]      worker_thread+0x587/0xd30
[ 4126.549534][   T73]      kthread+0x28a/0x350
[ 4126.549534][   T73]      ret_from_fork+0x31/0x70
[ 4126.549534][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4126.549534][   T73] 
[ 4126.551457][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4126.551457][   T73]      netdev_get_by_index+0x5e/0x80
[ 4126.551457][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4126.551457][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4126.551457][   T73]      ip6_route_add+0x1c/0x140
[ 4126.551457][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4126.551457][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4126.551457][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4126.551457][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4126.551457][   T73]      netlink_rcv_skb+0x130/0x360
[ 4126.551457][   T73]      netlink_unicast+0x449/0x710
[ 4126.551457][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4126.551457][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4126.551457][   T73]      ___sys_sendmsg+0xee/0x170
[ 4126.551457][   T73]      __sys_sendmsg+0xcd/0x170
[ 4126.551457][   T73]      do_syscall_64+0xc6/0x1e0
[ 4126.551457][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4126.551457][   T73] 
[ 4126.553462][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4126.553462][   T73]      netdev_get_by_index+0x5e/0x80
[ 4126.553462][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4126.553462][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4126.553462][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4126.553462][   T73]      ipv6_add_addr+0x411/0x2000
[ 4126.553462][   T73]      inet6_addr_add+0x30e/0xa40
[ 4126.553462][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4126.553462][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4126.553462][   T73]      netlink_rcv_skb+0x130/0x360
[ 4126.553462][   T73]      netlink_unicast+0x449/0x710
[ 4126.553462][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4126.553462][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4126.553462][   T73]      ___sys_sendmsg+0xee/0x170
[ 4126.553462][   T73]      __sys_sendmsg+0xcd/0x170
[ 4126.553462][   T73]      do_syscall_64+0xc6/0x1e0
[ 4126.553462][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4126.553462][   T73] 
[ 4126.555495][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4126.555495][   T73]      netdev_get_by_index+0x5e/0x80
[ 4126.555495][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4126.555495][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4126.555495][   T73]      ip6_route_add+0x1c/0x140
[ 4126.555495][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4126.555495][   T73]      addrconf_add_dev+0xe2/0x170
[ 4126.555495][   T73]      inet6_addr_add+0x12f/0xa40
[ 4126.555495][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4126.555495][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4126.555495][   T73]      netlink_rcv_skb+0x130/0x360
[ 4126.555495][   T73]      netlink_unicast+0x449/0x710
[ 4126.555495][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4126.555495][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4126.555495][   T73]      ___sys_sendmsg+0xee/0x170
[ 4126.555495][   T73]      __sys_sendmsg+0xcd/0x170
[ 4126.555495][   T73]      do_syscall_64+0xc6/0x1e0
[ 4126.555495][   T73] 
[ 4126.557466][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4126.557466][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4126.557466][   T73]      ipv6_find_idev+0x102/0x170
[ 4126.557466][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4126.557466][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4126.557466][   T73]      netlink_rcv_skb+0x130/0x360
[ 4126.557466][   T73]      netlink_unicast+0x449/0x710
[ 4126.557466][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4126.557466][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4126.557466][   T73]      ___sys_sendmsg+0xee/0x170
[ 4126.557466][   T73]      __sys_sendmsg+0xcd/0x170
[ 4126.557466][   T73]      do_syscall_64+0xc6/0x1e0
[ 4126.557466][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4126.557466][   T73] 
[ 4126.559046][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4126.559046][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4126.559046][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4126.559046][   T73]      ipv6_find_idev+0x102/0x170
[ 4126.559046][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4126.559046][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4126.559046][   T73]      netlink_rcv_skb+0x130/0x360
[ 4126.559046][   T73]      netlink_unicast+0x449/0x710
[ 4126.559046][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4126.559046][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4126.559046][   T73]      ___sys_sendmsg+0xee/0x170
[ 4126.559046][   T73]      __sys_sendmsg+0xcd/0x170
[ 4126.559046][   T73]      do_syscall_64+0xc6/0x1e0
[ 4126.559046][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4126.559046][   T73] 
[ 4126.560751][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4126.561023][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4126.561023][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4126.561023][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4126.561023][   T73]      fib6_nh_init+0xa22/0x1580
[ 4126.561023][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4126.561023][   T73]      ip6_route_add+0x1c/0x140
[ 4126.561023][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4126.561023][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4126.561023][   T73]      netlink_rcv_skb+0x130/0x360
[ 4126.561023][   T73]      netlink_unicast+0x449/0x710
[ 4126.561023][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4126.561023][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4126.561023][   T73]      ___sys_sendmsg+0xee/0x170
[ 4126.561023][   T73]      __sys_sendmsg+0xcd/0x170
[ 4126.561023][   T73]      do_syscall_64+0xc6/0x1e0
[ 4126.561023][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4126.561023][   T73] 
[ 4126.563106][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4126.563106][   T73]      dst_init+0x84/0x4a0
[ 4126.563106][   T73]      dst_alloc+0x97/0x150
[ 4126.563106][   T73]      ip6_dst_alloc+0x23/0x90
[ 4126.563106][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4126.563106][   T73]      ip6_pol_route+0x56f/0x840
[ 4126.563106][   T73]      fib6_rule_lookup+0x456/0x630
[ 4126.563106][   T73]      ip6_route_input+0x59c/0xa50
[ 4126.563106][   T73]      ipv6_rcv+0x397/0x810
[ 4126.563106][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4126.563106][   T73]      process_backlog+0x101/0x620
[ 4126.563106][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4126.563106][   T73]      net_rx_action+0x495/0xbe0
[ 4126.563106][   T73]      __do_softirq+0x1b5/0x7f6
[ 4126.563106][   T73] 
[ 4126.564997][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4126.564997][   T73]      netdev_get_by_index+0x5e/0x80
[ 4126.564997][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4126.564997][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4126.564997][   T73]      ip6_route_add+0x1c/0x140
[ 4126.564997][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4126.564997][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4126.564997][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4126.564997][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4126.564997][   T73]      netlink_rcv_skb+0x130/0x360
[ 4126.564997][   T73]      netlink_unicast+0x449/0x710
[ 4126.564997][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4126.564997][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4126.564997][   T73]      ___sys_sendmsg+0xee/0x170
[ 4126.564997][   T73]      __sys_sendmsg+0xcd/0x170
[ 4126.564997][   T73]      do_syscall_64+0xc6/0x1e0
[ 4126.564997][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4126.564997][   T73] 
[ 4126.567438][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4126.567438][   T73]      netdev_get_by_index+0x5e/0x80
[ 4126.567438][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4126.567438][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4126.567438][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4126.567438][   T73]      ipv6_add_addr+0x411/0x2000
[ 4126.567438][   T73]      inet6_addr_add+0x30e/0xa40
[ 4126.567438][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4126.567438][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4126.567438][   T73]      netlink_rcv_skb+0x130/0x360
[ 4126.567438][   T73]      netlink_unicast+0x449/0x710
[ 4126.567438][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4126.567438][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4126.567438][   T73]      ___sys_sendmsg+0xee/0x170
[ 4126.567438][   T73]      __sys_sendmsg+0xcd/0x170
[ 4126.567438][   T73]      do_syscall_64+0xc6/0x1e0
[ 4126.567438][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4126.567438][   T73] 
[ 4126.570161][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4126.570161][   T73]      netdev_get_by_index+0x5e/0x80
[ 4126.570161][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4126.570161][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4126.570161][   T73]      ip6_route_add+0x1c/0x140
[ 4126.570161][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4126.570161][   T73]      addrconf_add_dev+0xe2/0x170
[ 4126.570161][   T73]      inet6_addr_add+0x12f/0xa40
[ 4126.570161][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4126.570161][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4126.570161][   T73]      netlink_rcv_skb+0x130/0x360
[ 4126.570161][   T73]      netlink_unicast+0x449/0x710
[ 4126.570161][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4126.570161][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4126.570161][   T73]      ___sys_sendmsg+0xee/0x170
[ 4126.570161][   T73]      __sys_sendmsg+0xcd/0x170
[ 4126.570161][   T73]      do_syscall_64+0xc6/0x1e0
[ 4126.570161][   T73] 
[ 4126.572838][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4126.572838][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4126.572838][   T73]      ipv6_find_idev+0x102/0x170
[ 4126.572838][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4126.572838][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4126.572838][   T73]      netlink_rcv_skb+0x130/0x360
[ 4126.572838][   T73]      netlink_unicast+0x449/0x710
[ 4126.572838][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4126.572838][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4126.572838][   T73]      ___sys_sendmsg+0xee/0x170
[ 4126.572838][   T73]      __sys_sendmsg+0xcd/0x170
[ 4126.572838][   T73]      do_syscall_64+0xc6/0x1e0
[ 4126.572838][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4126.572838][   T73] 
[ 4126.574986][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4126.574986][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4126.574986][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4126.574986][   T73]      ipv6_find_idev+0x102/0x170
[ 4126.574986][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4126.574986][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4126.574986][   T73]      netlink_rcv_skb+0x130/0x360
[ 4126.574986][   T73]      netlink_unicast+0x449/0x710
[ 4126.574986][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4126.574986][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4126.574986][   T73]      ___sys_sendmsg+0xee/0x170
[ 4126.574986][   T73]      __sys_sendmsg+0xcd/0x170
[ 4126.574986][   T73]      do_syscall_64+0xc6/0x1e0
[ 4126.574986][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4126.574986][   T73] 
[ 4126.577270][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4126.577612][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4126.577612][   T73]      netdev_get_by_index+0x5e/0x80
[ 4126.577612][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4126.577612][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4126.577612][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4126.577612][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4126.577612][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4126.577612][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4126.577612][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4126.577612][   T73]      addrconf_dad_begin+0x310/0x670
[ 4126.577612][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4126.577612][   T73]      process_one_work+0x84d/0x18a0
[ 4126.577612][   T73]      worker_thread+0x587/0xd30
[ 4126.577612][   T73]      kthread+0x28a/0x350
[ 4126.577612][   T73]      ret_from_fork+0x31/0x70
[ 4126.577612][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4126.577612][   T73] 
[ 4126.580226][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4126.580226][   T73]      netdev_get_by_index+0x5e/0x80
[ 4126.580226][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4126.580226][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4126.580226][   T73]      ip6_route_add+0x1c/0x140
[ 4126.580226][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4126.580226][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4126.580226][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4126.580226][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4126.580226][   T73]      netlink_rcv_skb+0x130/0x360
[ 4126.580226][   T73]      netlink_unicast+0x449/0x710
[ 4126.580226][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4126.580226][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4126.580226][   T73]      ___sys_sendmsg+0xee/0x170
[ 4126.580226][   T73]      __sys_sendmsg+0xcd/0x170
[ 4126.580226][   T73]      do_syscall_64+0xc6/0x1e0
[ 4126.580226][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4126.580226][   T73] 
[ 4126.582940][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4126.582940][   T73]      netdev_get_by_index+0x5e/0x80
[ 4126.582940][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4126.582940][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4126.582940][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4126.582940][   T73]      ipv6_add_addr+0x411/0x2000
[ 4126.582940][   T73]      inet6_addr_add+0x30e/0xa40
[ 4126.582940][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4126.582940][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4126.582940][   T73]      netlink_rcv_skb+0x130/0x360
[ 4126.582940][   T73]      netlink_unicast+0x449/0x710
[ 4126.582940][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4126.582940][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4126.582940][   T73]      ___sys_sendmsg+0xee/0x170
[ 4126.582940][   T73]      __sys_sendmsg+0xcd/0x170
[ 4126.582940][   T73]      do_syscall_64+0xc6/0x1e0
[ 4126.582940][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4126.582940][   T73] 
[ 4126.585730][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4126.585730][   T73]      netdev_get_by_index+0x5e/0x80
[ 4126.585730][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4126.585730][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4126.585730][   T73]      ip6_route_add+0x1c/0x140
[ 4126.585730][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4126.585730][   T73]      addrconf_add_dev+0xe2/0x170
[ 4126.585730][   T73]      inet6_addr_add+0x12f/0xa40
[ 4126.585730][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4126.585730][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4126.585730][   T73]      netlink_rcv_skb+0x130/0x360
[ 4126.585730][   T73]      netlink_unicast+0x449/0x710
[ 4126.585730][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4126.585730][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4126.585730][   T73]      ___sys_sendmsg+0xee/0x170
[ 4126.585730][   T73]      __sys_sendmsg+0xcd/0x170
[ 4126.585730][   T73]      do_syscall_64+0xc6/0x1e0
[ 4126.585730][   T73] 
[ 4126.588361][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4126.588361][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4126.588361][   T73]      ipv6_find_idev+0x102/0x170
[ 4126.588361][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4126.588361][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4126.588361][   T73]      netlink_rcv_skb+0x130/0x360
[ 4126.588361][   T73]      netlink_unicast+0x449/0x710
[ 4126.588361][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4126.588361][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4126.588361][   T73]      ___sys_sendmsg+0xee/0x170
[ 4126.588361][   T73]      __sys_sendmsg+0xcd/0x170
[ 4126.588361][   T73]      do_syscall_64+0xc6/0x1e0
[ 4126.588361][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4126.588361][   T73] 
[ 4126.590442][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4126.590442][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4126.590442][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4126.590442][   T73]      ipv6_find_idev+0x102/0x170
[ 4126.590442][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4126.590442][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4126.590442][   T73]      netlink_rcv_skb+0x130/0x360
[ 4126.590442][   T73]      netlink_unicast+0x449/0x710
[ 4126.590442][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4126.590442][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4126.590442][   T73]      ___sys_sendmsg+0xee/0x170
[ 4126.590442][   T73]      __sys_sendmsg+0xcd/0x170
[ 4126.590442][   T73]      do_syscall_64+0xc6/0x1e0
[ 4126.590442][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4126.590442][   T73] 
[ 4136.599795][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4136.600317][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4136.600317][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4136.600317][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4136.600317][   T73]      fib6_nh_init+0xa22/0x1580
[ 4136.600317][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4136.600317][   T73]      ip6_route_add+0x1c/0x140
[ 4136.600317][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4136.600317][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4136.600317][   T73]      netlink_rcv_skb+0x130/0x360
[ 4136.600317][   T73]      netlink_unicast+0x449/0x710
[ 4136.600317][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4136.600317][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4136.600317][   T73]      ___sys_sendmsg+0xee/0x170
[ 4136.600317][   T73]      __sys_sendmsg+0xcd/0x170
[ 4136.600317][   T73]      do_syscall_64+0xc6/0x1e0
[ 4136.600317][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4136.600317][   T73] 
[ 4136.602492][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4136.602492][   T73]      dst_init+0x84/0x4a0
[ 4136.602492][   T73]      dst_alloc+0x97/0x150
[ 4136.602492][   T73]      ip6_dst_alloc+0x23/0x90
[ 4136.602492][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4136.602492][   T73]      ip6_pol_route+0x56f/0x840
[ 4136.602492][   T73]      fib6_rule_lookup+0x456/0x630
[ 4136.602492][   T73]      ip6_route_input+0x59c/0xa50
[ 4136.602492][   T73]      ipv6_rcv+0x397/0x810
[ 4136.602492][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4136.602492][   T73]      process_backlog+0x101/0x620
[ 4136.602492][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4136.602492][   T73]      net_rx_action+0x495/0xbe0
[ 4136.602492][   T73]      __do_softirq+0x1b5/0x7f6
[ 4136.602492][   T73] 
[ 4136.604148][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4136.604148][   T73]      netdev_get_by_index+0x5e/0x80
[ 4136.604148][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4136.604148][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4136.604148][   T73]      ip6_route_add+0x1c/0x140
[ 4136.604148][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4136.604148][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4136.604148][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4136.604148][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4136.604148][   T73]      netlink_rcv_skb+0x130/0x360
[ 4136.604148][   T73]      netlink_unicast+0x449/0x710
[ 4136.604148][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4136.604148][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4136.604148][   T73]      ___sys_sendmsg+0xee/0x170
[ 4136.604148][   T73]      __sys_sendmsg+0xcd/0x170
[ 4136.604148][   T73]      do_syscall_64+0xc6/0x1e0
[ 4136.604148][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4136.604148][   T73] 
[ 4136.606176][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4136.606176][   T73]      netdev_get_by_index+0x5e/0x80
[ 4136.606176][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4136.606176][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4136.606176][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4136.606176][   T73]      ipv6_add_addr+0x411/0x2000
[ 4136.606176][   T73]      inet6_addr_add+0x30e/0xa40
[ 4136.606176][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4136.606176][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4136.606176][   T73]      netlink_rcv_skb+0x130/0x360
[ 4136.606176][   T73]      netlink_unicast+0x449/0x710
[ 4136.606176][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4136.606176][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4136.606176][   T73]      ___sys_sendmsg+0xee/0x170
[ 4136.606176][   T73]      __sys_sendmsg+0xcd/0x170
[ 4136.606176][   T73]      do_syscall_64+0xc6/0x1e0
[ 4136.606176][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4136.606176][   T73] 
[ 4136.608180][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4136.608180][   T73]      netdev_get_by_index+0x5e/0x80
[ 4136.608180][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4136.608180][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4136.608180][   T73]      ip6_route_add+0x1c/0x140
[ 4136.608180][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4136.608180][   T73]      addrconf_add_dev+0xe2/0x170
[ 4136.608180][   T73]      inet6_addr_add+0x12f/0xa40
[ 4136.608180][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4136.608180][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4136.608180][   T73]      netlink_rcv_skb+0x130/0x360
[ 4136.608180][   T73]      netlink_unicast+0x449/0x710
[ 4136.608180][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4136.608180][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4136.608180][   T73]      ___sys_sendmsg+0xee/0x170
[ 4136.608180][   T73]      __sys_sendmsg+0xcd/0x170
[ 4136.608180][   T73]      do_syscall_64+0xc6/0x1e0
[ 4136.608180][   T73] 
[ 4136.610155][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4136.610155][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4136.610155][   T73]      ipv6_find_idev+0x102/0x170
[ 4136.610155][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4136.610155][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4136.610155][   T73]      netlink_rcv_skb+0x130/0x360
[ 4136.610155][   T73]      netlink_unicast+0x449/0x710
[ 4136.610155][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4136.610155][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4136.610155][   T73]      ___sys_sendmsg+0xee/0x170
[ 4136.610155][   T73]      __sys_sendmsg+0xcd/0x170
[ 4136.610155][   T73]      do_syscall_64+0xc6/0x1e0
[ 4136.610155][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4136.610155][   T73] 
[ 4136.611694][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4136.611694][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4136.611694][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4136.611694][   T73]      ipv6_find_idev+0x102/0x170
[ 4136.611694][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4136.611694][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4136.611694][   T73]      netlink_rcv_skb+0x130/0x360
[ 4136.611694][   T73]      netlink_unicast+0x449/0x710
[ 4136.611694][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4136.611694][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4136.611694][   T73]      ___sys_sendmsg+0xee/0x170
[ 4136.611694][   T73]      __sys_sendmsg+0xcd/0x170
[ 4136.611694][   T73]      do_syscall_64+0xc6/0x1e0
[ 4136.611694][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4136.611694][   T73] 
[ 4136.613414][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4136.613718][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4136.613718][   T73]      netdev_get_by_index+0x5e/0x80
[ 4136.613718][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4136.613718][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4136.613718][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4136.613718][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4136.613718][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4136.613718][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4136.613718][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4136.613718][   T73]      addrconf_dad_begin+0x310/0x670
[ 4136.613718][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4136.613718][   T73]      process_one_work+0x84d/0x18a0
[ 4136.613718][   T73]      worker_thread+0x587/0xd30
[ 4136.613718][   T73]      kthread+0x28a/0x350
[ 4136.613718][   T73]      ret_from_fork+0x31/0x70
[ 4136.613718][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4136.613718][   T73] 
[ 4136.615644][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4136.615644][   T73]      netdev_get_by_index+0x5e/0x80
[ 4136.615644][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4136.615644][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4136.615644][   T73]      ip6_route_add+0x1c/0x140
[ 4136.615644][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4136.615644][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4136.615644][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4136.615644][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4136.615644][   T73]      netlink_rcv_skb+0x130/0x360
[ 4136.615644][   T73]      netlink_unicast+0x449/0x710
[ 4136.615644][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4136.615644][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4136.615644][   T73]      ___sys_sendmsg+0xee/0x170
[ 4136.615644][   T73]      __sys_sendmsg+0xcd/0x170
[ 4136.615644][   T73]      do_syscall_64+0xc6/0x1e0
[ 4136.615644][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4136.615644][   T73] 
[ 4136.617664][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4136.617664][   T73]      netdev_get_by_index+0x5e/0x80
[ 4136.617664][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4136.617664][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4136.617664][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4136.617664][   T73]      ipv6_add_addr+0x411/0x2000
[ 4136.617664][   T73]      inet6_addr_add+0x30e/0xa40
[ 4136.617664][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4136.617664][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4136.617664][   T73]      netlink_rcv_skb+0x130/0x360
[ 4136.617664][   T73]      netlink_unicast+0x449/0x710
[ 4136.617664][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4136.617664][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4136.617664][   T73]      ___sys_sendmsg+0xee/0x170
[ 4136.617664][   T73]      __sys_sendmsg+0xcd/0x170
[ 4136.617664][   T73]      do_syscall_64+0xc6/0x1e0
[ 4136.617664][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4136.617664][   T73] 
[ 4136.619664][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4136.619664][   T73]      netdev_get_by_index+0x5e/0x80
[ 4136.619664][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4136.619664][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4136.619664][   T73]      ip6_route_add+0x1c/0x140
[ 4136.619664][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4136.619664][   T73]      addrconf_add_dev+0xe2/0x170
[ 4136.619664][   T73]      inet6_addr_add+0x12f/0xa40
[ 4136.619664][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4136.619664][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4136.619664][   T73]      netlink_rcv_skb+0x130/0x360
[ 4136.619664][   T73]      netlink_unicast+0x449/0x710
[ 4136.619664][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4136.619664][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4136.619664][   T73]      ___sys_sendmsg+0xee/0x170
[ 4136.619664][   T73]      __sys_sendmsg+0xcd/0x170
[ 4136.619664][   T73]      do_syscall_64+0xc6/0x1e0
[ 4136.619664][   T73] 
[ 4136.621636][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4136.621636][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4136.621636][   T73]      ipv6_find_idev+0x102/0x170
[ 4136.621636][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4136.621636][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4136.621636][   T73]      netlink_rcv_skb+0x130/0x360
[ 4136.621636][   T73]      netlink_unicast+0x449/0x710
[ 4136.621636][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4136.621636][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4136.621636][   T73]      ___sys_sendmsg+0xee/0x170
[ 4136.621636][   T73]      __sys_sendmsg+0xcd/0x170
[ 4136.621636][   T73]      do_syscall_64+0xc6/0x1e0
[ 4136.621636][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4136.621636][   T73] 
[ 4136.623179][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4136.623179][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4136.623179][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4136.623179][   T73]      ipv6_find_idev+0x102/0x170
[ 4136.623179][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4136.623179][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4136.623179][   T73]      netlink_rcv_skb+0x130/0x360
[ 4136.623179][   T73]      netlink_unicast+0x449/0x710
[ 4136.623179][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4136.623179][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4136.623179][   T73]      ___sys_sendmsg+0xee/0x170
[ 4136.623179][   T73]      __sys_sendmsg+0xcd/0x170
[ 4136.623179][   T73]      do_syscall_64+0xc6/0x1e0
[ 4136.623179][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4136.623179][   T73] 
[ 4136.624888][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4136.625170][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4136.625170][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4136.625170][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4136.625170][   T73]      fib6_nh_init+0xa22/0x1580
[ 4136.625170][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4136.625170][   T73]      ip6_route_add+0x1c/0x140
[ 4136.625170][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4136.625170][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4136.625170][   T73]      netlink_rcv_skb+0x130/0x360
[ 4136.625170][   T73]      netlink_unicast+0x449/0x710
[ 4136.625170][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4136.625170][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4136.625170][   T73]      ___sys_sendmsg+0xee/0x170
[ 4136.625170][   T73]      __sys_sendmsg+0xcd/0x170
[ 4136.625170][   T73]      do_syscall_64+0xc6/0x1e0
[ 4136.625170][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4136.625170][   T73] 
[ 4136.627258][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4136.627258][   T73]      dst_init+0x84/0x4a0
[ 4136.627258][   T73]      dst_alloc+0x97/0x150
[ 4136.627258][   T73]      ip6_dst_alloc+0x23/0x90
[ 4136.627258][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4136.627258][   T73]      ip6_pol_route+0x56f/0x840
[ 4136.627258][   T73]      fib6_rule_lookup+0x456/0x630
[ 4136.627258][   T73]      ip6_route_input+0x59c/0xa50
[ 4136.627258][   T73]      ipv6_rcv+0x397/0x810
[ 4136.627258][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4136.627258][   T73]      process_backlog+0x101/0x620
[ 4136.627258][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4136.627258][   T73]      net_rx_action+0x495/0xbe0
[ 4136.627258][   T73]      __do_softirq+0x1b5/0x7f6
[ 4136.627258][   T73] 
[ 4136.629139][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4136.629139][   T73]      netdev_get_by_index+0x5e/0x80
[ 4136.629139][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4136.629139][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4136.629139][   T73]      ip6_route_add+0x1c/0x140
[ 4136.629139][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4136.629139][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4136.629139][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4136.629139][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4136.629139][   T73]      netlink_rcv_skb+0x130/0x360
[ 4136.629139][   T73]      netlink_unicast+0x449/0x710
[ 4136.629139][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4136.629139][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4136.629139][   T73]      ___sys_sendmsg+0xee/0x170
[ 4136.629139][   T73]      __sys_sendmsg+0xcd/0x170
[ 4136.629139][   T73]      do_syscall_64+0xc6/0x1e0
[ 4136.629139][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4136.629139][   T73] 
[ 4136.631392][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4136.631392][   T73]      netdev_get_by_index+0x5e/0x80
[ 4136.631392][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4136.631392][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4136.631392][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4136.631392][   T73]      ipv6_add_addr+0x411/0x2000
[ 4136.631392][   T73]      inet6_addr_add+0x30e/0xa40
[ 4136.631392][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4136.631392][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4136.631392][   T73]      netlink_rcv_skb+0x130/0x360
[ 4136.631392][   T73]      netlink_unicast+0x449/0x710
[ 4136.631392][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4136.631392][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4136.631392][   T73]      ___sys_sendmsg+0xee/0x170
[ 4136.631392][   T73]      __sys_sendmsg+0xcd/0x170
[ 4136.631392][   T73]      do_syscall_64+0xc6/0x1e0
[ 4136.631392][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4136.631392][   T73] 
[ 4136.633654][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4136.633654][   T73]      netdev_get_by_index+0x5e/0x80
[ 4136.633654][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4136.633654][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4136.633654][   T73]      ip6_route_add+0x1c/0x140
[ 4136.633654][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4136.633654][   T73]      addrconf_add_dev+0xe2/0x170
[ 4136.633654][   T73]      inet6_addr_add+0x12f/0xa40
[ 4136.633654][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4136.633654][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4136.633654][   T73]      netlink_rcv_skb+0x130/0x360
[ 4136.633654][   T73]      netlink_unicast+0x449/0x710
[ 4136.633654][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4136.633654][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4136.633654][   T73]      ___sys_sendmsg+0xee/0x170
[ 4136.633654][   T73]      __sys_sendmsg+0xcd/0x170
[ 4136.633654][   T73]      do_syscall_64+0xc6/0x1e0
[ 4136.633654][   T73] 
[ 4136.635867][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4136.635867][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4136.635867][   T73]      ipv6_find_idev+0x102/0x170
[ 4136.635867][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4136.635867][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4136.635867][   T73]      netlink_rcv_skb+0x130/0x360
[ 4136.635867][   T73]      netlink_unicast+0x449/0x710
[ 4136.635867][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4136.635867][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4136.635867][   T73]      ___sys_sendmsg+0xee/0x170
[ 4136.635867][   T73]      __sys_sendmsg+0xcd/0x170
[ 4136.635867][   T73]      do_syscall_64+0xc6/0x1e0
[ 4136.635867][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4136.635867][   T73] 
[ 4136.637660][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4136.637660][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4136.637660][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4136.637660][   T73]      ipv6_find_idev+0x102/0x170
[ 4136.637660][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4136.637660][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4136.637660][   T73]      netlink_rcv_skb+0x130/0x360
[ 4136.637660][   T73]      netlink_unicast+0x449/0x710
[ 4136.637660][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4136.637660][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4136.637660][   T73]      ___sys_sendmsg+0xee/0x170
[ 4136.637660][   T73]      __sys_sendmsg+0xcd/0x170
[ 4136.637660][   T73]      do_syscall_64+0xc6/0x1e0
[ 4136.637660][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4136.637660][   T73] 
[ 4136.639538][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4136.640257][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4136.640257][   T73]      netdev_get_by_index+0x5e/0x80
[ 4136.640257][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4136.640257][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4136.640257][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4136.640257][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4136.640257][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4136.640257][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4136.640257][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4136.640257][   T73]      addrconf_dad_begin+0x310/0x670
[ 4136.640257][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4136.640257][   T73]      process_one_work+0x84d/0x18a0
[ 4136.640257][   T73]      worker_thread+0x587/0xd30
[ 4136.640257][   T73]      kthread+0x28a/0x350
[ 4136.640257][   T73]      ret_from_fork+0x31/0x70
[ 4136.640257][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4136.640257][   T73] 
[ 4136.642188][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4136.642188][   T73]      netdev_get_by_index+0x5e/0x80
[ 4136.642188][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4136.642188][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4136.642188][   T73]      ip6_route_add+0x1c/0x140
[ 4136.642188][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4136.642188][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4136.642188][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4136.642188][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4136.642188][   T73]      netlink_rcv_skb+0x130/0x360
[ 4136.642188][   T73]      netlink_unicast+0x449/0x710
[ 4136.642188][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4136.642188][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4136.642188][   T73]      ___sys_sendmsg+0xee/0x170
[ 4136.642188][   T73]      __sys_sendmsg+0xcd/0x170
[ 4136.642188][   T73]      do_syscall_64+0xc6/0x1e0
[ 4136.642188][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4136.642188][   T73] 
[ 4136.644319][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4136.644319][   T73]      netdev_get_by_index+0x5e/0x80
[ 4136.644319][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4136.644319][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4136.644319][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4136.644319][   T73]      ipv6_add_addr+0x411/0x2000
[ 4136.644319][   T73]      inet6_addr_add+0x30e/0xa40
[ 4136.644319][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4136.644319][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4136.644319][   T73]      netlink_rcv_skb+0x130/0x360
[ 4136.644319][   T73]      netlink_unicast+0x449/0x710
[ 4136.644319][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4136.644319][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4136.644319][   T73]      ___sys_sendmsg+0xee/0x170
[ 4136.644319][   T73]      __sys_sendmsg+0xcd/0x170
[ 4136.644319][   T73]      do_syscall_64+0xc6/0x1e0
[ 4136.644319][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4136.644319][   T73] 
[ 4136.646581][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4136.646581][   T73]      netdev_get_by_index+0x5e/0x80
[ 4136.646581][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4136.646581][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4136.646581][   T73]      ip6_route_add+0x1c/0x140
[ 4136.646581][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4136.646581][   T73]      addrconf_add_dev+0xe2/0x170
[ 4136.646581][   T73]      inet6_addr_add+0x12f/0xa40
[ 4136.646581][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4136.646581][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4136.646581][   T73]      netlink_rcv_skb+0x130/0x360
[ 4136.646581][   T73]      netlink_unicast+0x449/0x710
[ 4136.646581][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4136.646581][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4136.646581][   T73]      ___sys_sendmsg+0xee/0x170
[ 4136.646581][   T73]      __sys_sendmsg+0xcd/0x170
[ 4136.646581][   T73]      do_syscall_64+0xc6/0x1e0
[ 4136.646581][   T73] 
[ 4136.648737][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4136.648737][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4136.648737][   T73]      ipv6_find_idev+0x102/0x170
[ 4136.648737][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4136.648737][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4136.648737][   T73]      netlink_rcv_skb+0x130/0x360
[ 4136.648737][   T73]      netlink_unicast+0x449/0x710
[ 4136.648737][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4136.648737][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4136.648737][   T73]      ___sys_sendmsg+0xee/0x170
[ 4136.648737][   T73]      __sys_sendmsg+0xcd/0x170
[ 4136.648737][   T73]      do_syscall_64+0xc6/0x1e0
[ 4136.648737][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4136.648737][   T73] 
[ 4136.650528][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4136.650528][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4136.650528][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4136.650528][   T73]      ipv6_find_idev+0x102/0x170
[ 4136.650528][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4136.650528][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4136.650528][   T73]      netlink_rcv_skb+0x130/0x360
[ 4136.650528][   T73]      netlink_unicast+0x449/0x710
[ 4136.650528][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4136.650528][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4136.650528][   T73]      ___sys_sendmsg+0xee/0x170
[ 4136.650528][   T73]      __sys_sendmsg+0xcd/0x170
[ 4136.650528][   T73]      do_syscall_64+0xc6/0x1e0
[ 4136.650528][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4136.650528][   T73] 
[ 4146.887770][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4146.888266][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4146.888266][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4146.888266][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4146.888266][   T73]      fib6_nh_init+0xa22/0x1580
[ 4146.888266][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4146.888266][   T73]      ip6_route_add+0x1c/0x140
[ 4146.888266][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4146.888266][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4146.888266][   T73]      netlink_rcv_skb+0x130/0x360
[ 4146.888266][   T73]      netlink_unicast+0x449/0x710
[ 4146.888266][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4146.888266][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4146.888266][   T73]      ___sys_sendmsg+0xee/0x170
[ 4146.888266][   T73]      __sys_sendmsg+0xcd/0x170
[ 4146.888266][   T73]      do_syscall_64+0xc6/0x1e0
[ 4146.888266][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4146.888266][   T73] 
[ 4146.890206][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4146.890206][   T73]      dst_init+0x84/0x4a0
[ 4146.890206][   T73]      dst_alloc+0x97/0x150
[ 4146.890206][   T73]      ip6_dst_alloc+0x23/0x90
[ 4146.890206][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4146.890206][   T73]      ip6_pol_route+0x56f/0x840
[ 4146.890206][   T73]      fib6_rule_lookup+0x456/0x630
[ 4146.890206][   T73]      ip6_route_input+0x59c/0xa50
[ 4146.890206][   T73]      ipv6_rcv+0x397/0x810
[ 4146.890206][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4146.890206][   T73]      process_backlog+0x101/0x620
[ 4146.890206][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4146.890206][   T73]      net_rx_action+0x495/0xbe0
[ 4146.890206][   T73]      __do_softirq+0x1b5/0x7f6
[ 4146.890206][   T73] 
[ 4146.891870][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4146.891870][   T73]      netdev_get_by_index+0x5e/0x80
[ 4146.891870][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4146.891870][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4146.891870][   T73]      ip6_route_add+0x1c/0x140
[ 4146.891870][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4146.891870][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4146.891870][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4146.891870][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4146.891870][   T73]      netlink_rcv_skb+0x130/0x360
[ 4146.891870][   T73]      netlink_unicast+0x449/0x710
[ 4146.891870][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4146.891870][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4146.891870][   T73]      ___sys_sendmsg+0xee/0x170
[ 4146.891870][   T73]      __sys_sendmsg+0xcd/0x170
[ 4146.891870][   T73]      do_syscall_64+0xc6/0x1e0
[ 4146.891870][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4146.891870][   T73] 
[ 4146.893882][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4146.893882][   T73]      netdev_get_by_index+0x5e/0x80
[ 4146.893882][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4146.893882][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4146.893882][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4146.893882][   T73]      ipv6_add_addr+0x411/0x2000
[ 4146.893882][   T73]      inet6_addr_add+0x30e/0xa40
[ 4146.893882][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4146.893882][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4146.893882][   T73]      netlink_rcv_skb+0x130/0x360
[ 4146.893882][   T73]      netlink_unicast+0x449/0x710
[ 4146.893882][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4146.893882][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4146.893882][   T73]      ___sys_sendmsg+0xee/0x170
[ 4146.893882][   T73]      __sys_sendmsg+0xcd/0x170
[ 4146.893882][   T73]      do_syscall_64+0xc6/0x1e0
[ 4146.893882][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4146.893882][   T73] 
[ 4146.895902][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4146.895902][   T73]      netdev_get_by_index+0x5e/0x80
[ 4146.895902][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4146.895902][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4146.895902][   T73]      ip6_route_add+0x1c/0x140
[ 4146.895902][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4146.895902][   T73]      addrconf_add_dev+0xe2/0x170
[ 4146.895902][   T73]      inet6_addr_add+0x12f/0xa40
[ 4146.895902][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4146.895902][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4146.895902][   T73]      netlink_rcv_skb+0x130/0x360
[ 4146.895902][   T73]      netlink_unicast+0x449/0x710
[ 4146.895902][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4146.895902][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4146.895902][   T73]      ___sys_sendmsg+0xee/0x170
[ 4146.895902][   T73]      __sys_sendmsg+0xcd/0x170
[ 4146.895902][   T73]      do_syscall_64+0xc6/0x1e0
[ 4146.895902][   T73] 
[ 4146.897874][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4146.897874][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4146.897874][   T73]      ipv6_find_idev+0x102/0x170
[ 4146.897874][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4146.897874][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4146.897874][   T73]      netlink_rcv_skb+0x130/0x360
[ 4146.897874][   T73]      netlink_unicast+0x449/0x710
[ 4146.897874][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4146.897874][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4146.897874][   T73]      ___sys_sendmsg+0xee/0x170
[ 4146.897874][   T73]      __sys_sendmsg+0xcd/0x170
[ 4146.897874][   T73]      do_syscall_64+0xc6/0x1e0
[ 4146.897874][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4146.897874][   T73] 
[ 4146.899419][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4146.899419][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4146.899419][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4146.899419][   T73]      ipv6_find_idev+0x102/0x170
[ 4146.899419][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4146.899419][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4146.899419][   T73]      netlink_rcv_skb+0x130/0x360
[ 4146.899419][   T73]      netlink_unicast+0x449/0x710
[ 4146.899419][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4146.899419][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4146.899419][   T73]      ___sys_sendmsg+0xee/0x170
[ 4146.899419][   T73]      __sys_sendmsg+0xcd/0x170
[ 4146.899419][   T73]      do_syscall_64+0xc6/0x1e0
[ 4146.899419][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4146.899419][   T73] 
[ 4146.901142][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4146.901432][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4146.901432][   T73]      netdev_get_by_index+0x5e/0x80
[ 4146.901432][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4146.901432][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4146.901432][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4146.901432][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4146.901432][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4146.901432][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4146.901432][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4146.901432][   T73]      addrconf_dad_begin+0x310/0x670
[ 4146.901432][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4146.901432][   T73]      process_one_work+0x84d/0x18a0
[ 4146.901432][   T73]      worker_thread+0x587/0xd30
[ 4146.901432][   T73]      kthread+0x28a/0x350
[ 4146.901432][   T73]      ret_from_fork+0x31/0x70
[ 4146.901432][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4146.901432][   T73] 
[ 4146.903361][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4146.903361][   T73]      netdev_get_by_index+0x5e/0x80
[ 4146.903361][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4146.903361][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4146.903361][   T73]      ip6_route_add+0x1c/0x140
[ 4146.903361][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4146.903361][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4146.903361][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4146.903361][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4146.903361][   T73]      netlink_rcv_skb+0x130/0x360
[ 4146.903361][   T73]      netlink_unicast+0x449/0x710
[ 4146.903361][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4146.903361][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4146.903361][   T73]      ___sys_sendmsg+0xee/0x170
[ 4146.903361][   T73]      __sys_sendmsg+0xcd/0x170
[ 4146.903361][   T73]      do_syscall_64+0xc6/0x1e0
[ 4146.903361][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4146.903361][   T73] 
[ 4146.905402][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4146.905402][   T73]      netdev_get_by_index+0x5e/0x80
[ 4146.905402][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4146.905402][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4146.905402][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4146.905402][   T73]      ipv6_add_addr+0x411/0x2000
[ 4146.905402][   T73]      inet6_addr_add+0x30e/0xa40
[ 4146.905402][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4146.905402][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4146.905402][   T73]      netlink_rcv_skb+0x130/0x360
[ 4146.905402][   T73]      netlink_unicast+0x449/0x710
[ 4146.905402][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4146.905402][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4146.905402][   T73]      ___sys_sendmsg+0xee/0x170
[ 4146.905402][   T73]      __sys_sendmsg+0xcd/0x170
[ 4146.905402][   T73]      do_syscall_64+0xc6/0x1e0
[ 4146.905402][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4146.905402][   T73] 
[ 4146.907417][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4146.907417][   T73]      netdev_get_by_index+0x5e/0x80
[ 4146.907417][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4146.907417][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4146.907417][   T73]      ip6_route_add+0x1c/0x140
[ 4146.907417][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4146.907417][   T73]      addrconf_add_dev+0xe2/0x170
[ 4146.907417][   T73]      inet6_addr_add+0x12f/0xa40
[ 4146.907417][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4146.907417][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4146.907417][   T73]      netlink_rcv_skb+0x130/0x360
[ 4146.907417][   T73]      netlink_unicast+0x449/0x710
[ 4146.907417][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4146.907417][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4146.907417][   T73]      ___sys_sendmsg+0xee/0x170
[ 4146.907417][   T73]      __sys_sendmsg+0xcd/0x170
[ 4146.907417][   T73]      do_syscall_64+0xc6/0x1e0
[ 4146.907417][   T73] 
[ 4146.909396][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4146.909396][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4146.909396][   T73]      ipv6_find_idev+0x102/0x170
[ 4146.909396][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4146.909396][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4146.909396][   T73]      netlink_rcv_skb+0x130/0x360
[ 4146.909396][   T73]      netlink_unicast+0x449/0x710
[ 4146.909396][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4146.909396][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4146.909396][   T73]      ___sys_sendmsg+0xee/0x170
[ 4146.909396][   T73]      __sys_sendmsg+0xcd/0x170
[ 4146.909396][   T73]      do_syscall_64+0xc6/0x1e0
[ 4146.909396][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4146.909396][   T73] 
[ 4146.910944][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4146.910944][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4146.910944][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4146.910944][   T73]      ipv6_find_idev+0x102/0x170
[ 4146.910944][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4146.910944][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4146.910944][   T73]      netlink_rcv_skb+0x130/0x360
[ 4146.910944][   T73]      netlink_unicast+0x449/0x710
[ 4146.910944][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4146.910944][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4146.910944][   T73]      ___sys_sendmsg+0xee/0x170
[ 4146.910944][   T73]      __sys_sendmsg+0xcd/0x170
[ 4146.910944][   T73]      do_syscall_64+0xc6/0x1e0
[ 4146.910944][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4146.910944][   T73] 
[ 4146.912656][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4146.912934][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4146.912934][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4146.912934][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4146.912934][   T73]      fib6_nh_init+0xa22/0x1580
[ 4146.912934][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4146.912934][   T73]      ip6_route_add+0x1c/0x140
[ 4146.912934][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4146.912934][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4146.912934][   T73]      netlink_rcv_skb+0x130/0x360
[ 4146.912934][   T73]      netlink_unicast+0x449/0x710
[ 4146.912934][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4146.912934][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4146.912934][   T73]      ___sys_sendmsg+0xee/0x170
[ 4146.912934][   T73]      __sys_sendmsg+0xcd/0x170
[ 4146.912934][   T73]      do_syscall_64+0xc6/0x1e0
[ 4146.912934][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4146.912934][   T73] 
[ 4146.915452][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4146.915452][   T73]      dst_init+0x84/0x4a0
[ 4146.915452][   T73]      dst_alloc+0x97/0x150
[ 4146.915452][   T73]      ip6_dst_alloc+0x23/0x90
[ 4146.915452][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4146.915452][   T73]      ip6_pol_route+0x56f/0x840
[ 4146.915452][   T73]      fib6_rule_lookup+0x456/0x630
[ 4146.915452][   T73]      ip6_route_input+0x59c/0xa50
[ 4146.915452][   T73]      ipv6_rcv+0x397/0x810
[ 4146.915452][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4146.915452][   T73]      process_backlog+0x101/0x620
[ 4146.915452][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4146.915452][   T73]      net_rx_action+0x495/0xbe0
[ 4146.915452][   T73]      __do_softirq+0x1b5/0x7f6
[ 4146.915452][   T73] 
[ 4146.917718][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4146.917718][   T73]      netdev_get_by_index+0x5e/0x80
[ 4146.917718][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4146.917718][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4146.917718][   T73]      ip6_route_add+0x1c/0x140
[ 4146.917718][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4146.917718][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4146.917718][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4146.917718][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4146.917718][   T73]      netlink_rcv_skb+0x130/0x360
[ 4146.917718][   T73]      netlink_unicast+0x449/0x710
[ 4146.917718][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4146.917718][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4146.917718][   T73]      ___sys_sendmsg+0xee/0x170
[ 4146.917718][   T73]      __sys_sendmsg+0xcd/0x170
[ 4146.917718][   T73]      do_syscall_64+0xc6/0x1e0
[ 4146.917718][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4146.917718][   T73] 
[ 4146.920443][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4146.920443][   T73]      netdev_get_by_index+0x5e/0x80
[ 4146.920443][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4146.920443][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4146.920443][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4146.920443][   T73]      ipv6_add_addr+0x411/0x2000
[ 4146.920443][   T73]      inet6_addr_add+0x30e/0xa40
[ 4146.920443][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4146.920443][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4146.920443][   T73]      netlink_rcv_skb+0x130/0x360
[ 4146.920443][   T73]      netlink_unicast+0x449/0x710
[ 4146.920443][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4146.920443][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4146.920443][   T73]      ___sys_sendmsg+0xee/0x170
[ 4146.920443][   T73]      __sys_sendmsg+0xcd/0x170
[ 4146.920443][   T73]      do_syscall_64+0xc6/0x1e0
[ 4146.920443][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4146.920443][   T73] 
[ 4146.923149][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4146.923149][   T73]      netdev_get_by_index+0x5e/0x80
[ 4146.923149][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4146.923149][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4146.923149][   T73]      ip6_route_add+0x1c/0x140
[ 4146.923149][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4146.923149][   T73]      addrconf_add_dev+0xe2/0x170
[ 4146.923149][   T73]      inet6_addr_add+0x12f/0xa40
[ 4146.923149][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4146.923149][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4146.923149][   T73]      netlink_rcv_skb+0x130/0x360
[ 4146.923149][   T73]      netlink_unicast+0x449/0x710
[ 4146.923149][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4146.923149][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4146.923149][   T73]      ___sys_sendmsg+0xee/0x170
[ 4146.923149][   T73]      __sys_sendmsg+0xcd/0x170
[ 4146.923149][   T73]      do_syscall_64+0xc6/0x1e0
[ 4146.923149][   T73] 
[ 4146.925825][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4146.925825][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4146.925825][   T73]      ipv6_find_idev+0x102/0x170
[ 4146.925825][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4146.925825][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4146.925825][   T73]      netlink_rcv_skb+0x130/0x360
[ 4146.925825][   T73]      netlink_unicast+0x449/0x710
[ 4146.925825][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4146.925825][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4146.925825][   T73]      ___sys_sendmsg+0xee/0x170
[ 4146.925825][   T73]      __sys_sendmsg+0xcd/0x170
[ 4146.925825][   T73]      do_syscall_64+0xc6/0x1e0
[ 4146.925825][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4146.925825][   T73] 
[ 4146.927968][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4146.927968][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4146.927968][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4146.927968][   T73]      ipv6_find_idev+0x102/0x170
[ 4146.927968][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4146.927968][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4146.927968][   T73]      netlink_rcv_skb+0x130/0x360
[ 4146.927968][   T73]      netlink_unicast+0x449/0x710
[ 4146.927968][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4146.927968][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4146.927968][   T73]      ___sys_sendmsg+0xee/0x170
[ 4146.927968][   T73]      __sys_sendmsg+0xcd/0x170
[ 4146.927968][   T73]      do_syscall_64+0xc6/0x1e0
[ 4146.927968][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4146.927968][   T73] 
[ 4146.930241][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4146.930580][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4146.930580][   T73]      netdev_get_by_index+0x5e/0x80
[ 4146.930580][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4146.930580][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4146.930580][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4146.930580][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4146.930580][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4146.930580][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4146.930580][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4146.930580][   T73]      addrconf_dad_begin+0x310/0x670
[ 4146.930580][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4146.930580][   T73]      process_one_work+0x84d/0x18a0
[ 4146.930580][   T73]      worker_thread+0x587/0xd30
[ 4146.930580][   T73]      kthread+0x28a/0x350
[ 4146.930580][   T73]      ret_from_fork+0x31/0x70
[ 4146.930580][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4146.930580][   T73] 
[ 4146.933184][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4146.933184][   T73]      netdev_get_by_index+0x5e/0x80
[ 4146.933184][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4146.933184][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4146.933184][   T73]      ip6_route_add+0x1c/0x140
[ 4146.933184][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4146.933184][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4146.933184][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4146.933184][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4146.933184][   T73]      netlink_rcv_skb+0x130/0x360
[ 4146.933184][   T73]      netlink_unicast+0x449/0x710
[ 4146.933184][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4146.933184][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4146.933184][   T73]      ___sys_sendmsg+0xee/0x170
[ 4146.933184][   T73]      __sys_sendmsg+0xcd/0x170
[ 4146.933184][   T73]      do_syscall_64+0xc6/0x1e0
[ 4146.933184][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4146.933184][   T73] 
[ 4146.935913][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4146.935913][   T73]      netdev_get_by_index+0x5e/0x80
[ 4146.935913][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4146.935913][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4146.935913][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4146.935913][   T73]      ipv6_add_addr+0x411/0x2000
[ 4146.935913][   T73]      inet6_addr_add+0x30e/0xa40
[ 4146.935913][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4146.935913][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4146.935913][   T73]      netlink_rcv_skb+0x130/0x360
[ 4146.935913][   T73]      netlink_unicast+0x449/0x710
[ 4146.935913][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4146.935913][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4146.935913][   T73]      ___sys_sendmsg+0xee/0x170
[ 4146.935913][   T73]      __sys_sendmsg+0xcd/0x170
[ 4146.935913][   T73]      do_syscall_64+0xc6/0x1e0
[ 4146.935913][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4146.935913][   T73] 
[ 4146.938519][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4146.938519][   T73]      netdev_get_by_index+0x5e/0x80
[ 4146.938519][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4146.938519][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4146.938519][   T73]      ip6_route_add+0x1c/0x140
[ 4146.938519][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4146.938519][   T73]      addrconf_add_dev+0xe2/0x170
[ 4146.938519][   T73]      inet6_addr_add+0x12f/0xa40
[ 4146.938519][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4146.938519][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4146.938519][   T73]      netlink_rcv_skb+0x130/0x360
[ 4146.938519][   T73]      netlink_unicast+0x449/0x710
[ 4146.938519][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4146.938519][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4146.938519][   T73]      ___sys_sendmsg+0xee/0x170
[ 4146.938519][   T73]      __sys_sendmsg+0xcd/0x170
[ 4146.938519][   T73]      do_syscall_64+0xc6/0x1e0
[ 4146.938519][   T73] 
[ 4146.940676][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4146.940676][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4146.940676][   T73]      ipv6_find_idev+0x102/0x170
[ 4146.940676][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4146.940676][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4146.940676][   T73]      netlink_rcv_skb+0x130/0x360
[ 4146.940676][   T73]      netlink_unicast+0x449/0x710
[ 4146.940676][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4146.940676][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4146.940676][   T73]      ___sys_sendmsg+0xee/0x170
[ 4146.940676][   T73]      __sys_sendmsg+0xcd/0x170
[ 4146.940676][   T73]      do_syscall_64+0xc6/0x1e0
[ 4146.940676][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4146.940676][   T73] 
[ 4146.942405][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4146.942405][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4146.942405][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4146.942405][   T73]      ipv6_find_idev+0x102/0x170
[ 4146.942405][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4146.942405][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4146.942405][   T73]      netlink_rcv_skb+0x130/0x360
[ 4146.942405][   T73]      netlink_unicast+0x449/0x710
[ 4146.942405][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4146.942405][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4146.942405][   T73]      ___sys_sendmsg+0xee/0x170
[ 4146.942405][   T73]      __sys_sendmsg+0xcd/0x170
[ 4146.942405][   T73]      do_syscall_64+0xc6/0x1e0
[ 4146.942405][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4146.942405][   T73] 
[ 4157.183772][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4157.184276][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4157.184276][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4157.184276][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4157.184276][   T73]      fib6_nh_init+0xa22/0x1580
[ 4157.184276][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4157.184276][   T73]      ip6_route_add+0x1c/0x140
[ 4157.184276][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4157.184276][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4157.184276][   T73]      netlink_rcv_skb+0x130/0x360
[ 4157.184276][   T73]      netlink_unicast+0x449/0x710
[ 4157.184276][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4157.184276][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4157.184276][   T73]      ___sys_sendmsg+0xee/0x170
[ 4157.184276][   T73]      __sys_sendmsg+0xcd/0x170
[ 4157.184276][   T73]      do_syscall_64+0xc6/0x1e0
[ 4157.184276][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4157.184276][   T73] 
[ 4157.186746][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4157.186746][   T73]      dst_init+0x84/0x4a0
[ 4157.186746][   T73]      dst_alloc+0x97/0x150
[ 4157.186746][   T73]      ip6_dst_alloc+0x23/0x90
[ 4157.186746][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4157.186746][   T73]      ip6_pol_route+0x56f/0x840
[ 4157.186746][   T73]      fib6_rule_lookup+0x456/0x630
[ 4157.186746][   T73]      ip6_route_input+0x59c/0xa50
[ 4157.186746][   T73]      ipv6_rcv+0x397/0x810
[ 4157.186746][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4157.186746][   T73]      process_backlog+0x101/0x620
[ 4157.186746][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4157.186746][   T73]      net_rx_action+0x495/0xbe0
[ 4157.186746][   T73]      __do_softirq+0x1b5/0x7f6
[ 4157.186746][   T73] 
[ 4157.188399][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4157.188399][   T73]      netdev_get_by_index+0x5e/0x80
[ 4157.188399][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4157.188399][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4157.188399][   T73]      ip6_route_add+0x1c/0x140
[ 4157.188399][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4157.188399][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4157.188399][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4157.188399][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4157.188399][   T73]      netlink_rcv_skb+0x130/0x360
[ 4157.188399][   T73]      netlink_unicast+0x449/0x710
[ 4157.188399][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4157.188399][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4157.188399][   T73]      ___sys_sendmsg+0xee/0x170
[ 4157.188399][   T73]      __sys_sendmsg+0xcd/0x170
[ 4157.188399][   T73]      do_syscall_64+0xc6/0x1e0
[ 4157.188399][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4157.188399][   T73] 
[ 4157.190409][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4157.190409][   T73]      netdev_get_by_index+0x5e/0x80
[ 4157.190409][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4157.190409][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4157.190409][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4157.190409][   T73]      ipv6_add_addr+0x411/0x2000
[ 4157.190409][   T73]      inet6_addr_add+0x30e/0xa40
[ 4157.190409][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4157.190409][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4157.190409][   T73]      netlink_rcv_skb+0x130/0x360
[ 4157.190409][   T73]      netlink_unicast+0x449/0x710
[ 4157.190409][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4157.190409][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4157.190409][   T73]      ___sys_sendmsg+0xee/0x170
[ 4157.190409][   T73]      __sys_sendmsg+0xcd/0x170
[ 4157.190409][   T73]      do_syscall_64+0xc6/0x1e0
[ 4157.190409][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4157.190409][   T73] 
[ 4157.192425][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4157.192425][   T73]      netdev_get_by_index+0x5e/0x80
[ 4157.192425][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4157.192425][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4157.192425][   T73]      ip6_route_add+0x1c/0x140
[ 4157.192425][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4157.192425][   T73]      addrconf_add_dev+0xe2/0x170
[ 4157.192425][   T73]      inet6_addr_add+0x12f/0xa40
[ 4157.192425][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4157.192425][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4157.192425][   T73]      netlink_rcv_skb+0x130/0x360
[ 4157.192425][   T73]      netlink_unicast+0x449/0x710
[ 4157.192425][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4157.192425][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4157.192425][   T73]      ___sys_sendmsg+0xee/0x170
[ 4157.192425][   T73]      __sys_sendmsg+0xcd/0x170
[ 4157.192425][   T73]      do_syscall_64+0xc6/0x1e0
[ 4157.192425][   T73] 
[ 4157.194399][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4157.194399][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4157.194399][   T73]      ipv6_find_idev+0x102/0x170
[ 4157.194399][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4157.194399][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4157.194399][   T73]      netlink_rcv_skb+0x130/0x360
[ 4157.194399][   T73]      netlink_unicast+0x449/0x710
[ 4157.194399][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4157.194399][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4157.194399][   T73]      ___sys_sendmsg+0xee/0x170
[ 4157.194399][   T73]      __sys_sendmsg+0xcd/0x170
[ 4157.194399][   T73]      do_syscall_64+0xc6/0x1e0
[ 4157.194399][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4157.194399][   T73] 
[ 4157.195954][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4157.195954][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4157.195954][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4157.195954][   T73]      ipv6_find_idev+0x102/0x170
[ 4157.195954][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4157.195954][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4157.195954][   T73]      netlink_rcv_skb+0x130/0x360
[ 4157.195954][   T73]      netlink_unicast+0x449/0x710
[ 4157.195954][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4157.195954][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4157.195954][   T73]      ___sys_sendmsg+0xee/0x170
[ 4157.195954][   T73]      __sys_sendmsg+0xcd/0x170
[ 4157.195954][   T73]      do_syscall_64+0xc6/0x1e0
[ 4157.195954][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4157.195954][   T73] 
[ 4157.197676][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4157.197980][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4157.197980][   T73]      netdev_get_by_index+0x5e/0x80
[ 4157.197980][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4157.197980][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4157.197980][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4157.197980][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4157.197980][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4157.197980][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4157.197980][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4157.197980][   T73]      addrconf_dad_begin+0x310/0x670
[ 4157.197980][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4157.197980][   T73]      process_one_work+0x84d/0x18a0
[ 4157.197980][   T73]      worker_thread+0x587/0xd30
[ 4157.197980][   T73]      kthread+0x28a/0x350
[ 4157.197980][   T73]      ret_from_fork+0x31/0x70
[ 4157.197980][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4157.197980][   T73] 
[ 4157.202265][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4157.202265][   T73]      netdev_get_by_index+0x5e/0x80
[ 4157.202265][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4157.202265][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4157.202265][   T73]      ip6_route_add+0x1c/0x140
[ 4157.202265][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4157.202265][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4157.202265][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4157.202265][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4157.202265][   T73]      netlink_rcv_skb+0x130/0x360
[ 4157.202265][   T73]      netlink_unicast+0x449/0x710
[ 4157.202265][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4157.202265][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4157.202265][   T73]      ___sys_sendmsg+0xee/0x170
[ 4157.202265][   T73]      __sys_sendmsg+0xcd/0x170
[ 4157.202265][   T73]      do_syscall_64+0xc6/0x1e0
[ 4157.202265][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4157.202265][   T73] 
[ 4157.204290][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4157.204290][   T73]      netdev_get_by_index+0x5e/0x80
[ 4157.204290][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4157.204290][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4157.204290][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4157.204290][   T73]      ipv6_add_addr+0x411/0x2000
[ 4157.204290][   T73]      inet6_addr_add+0x30e/0xa40
[ 4157.204290][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4157.204290][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4157.204290][   T73]      netlink_rcv_skb+0x130/0x360
[ 4157.204290][   T73]      netlink_unicast+0x449/0x710
[ 4157.204290][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4157.204290][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4157.204290][   T73]      ___sys_sendmsg+0xee/0x170
[ 4157.204290][   T73]      __sys_sendmsg+0xcd/0x170
[ 4157.204290][   T73]      do_syscall_64+0xc6/0x1e0
[ 4157.204290][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4157.204290][   T73] 
[ 4157.206324][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4157.206324][   T73]      netdev_get_by_index+0x5e/0x80
[ 4157.206324][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4157.206324][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4157.206324][   T73]      ip6_route_add+0x1c/0x140
[ 4157.206324][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4157.206324][   T73]      addrconf_add_dev+0xe2/0x170
[ 4157.206324][   T73]      inet6_addr_add+0x12f/0xa40
[ 4157.206324][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4157.206324][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4157.206324][   T73]      netlink_rcv_skb+0x130/0x360
[ 4157.206324][   T73]      netlink_unicast+0x449/0x710
[ 4157.206324][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4157.206324][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4157.206324][   T73]      ___sys_sendmsg+0xee/0x170
[ 4157.206324][   T73]      __sys_sendmsg+0xcd/0x170
[ 4157.206324][   T73]      do_syscall_64+0xc6/0x1e0
[ 4157.206324][   T73] 
[ 4157.208311][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4157.208311][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4157.208311][   T73]      ipv6_find_idev+0x102/0x170
[ 4157.208311][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4157.208311][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4157.208311][   T73]      netlink_rcv_skb+0x130/0x360
[ 4157.208311][   T73]      netlink_unicast+0x449/0x710
[ 4157.208311][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4157.208311][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4157.208311][   T73]      ___sys_sendmsg+0xee/0x170
[ 4157.208311][   T73]      __sys_sendmsg+0xcd/0x170
[ 4157.208311][   T73]      do_syscall_64+0xc6/0x1e0
[ 4157.208311][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4157.208311][   T73] 
[ 4157.209867][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4157.209867][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4157.209867][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4157.209867][   T73]      ipv6_find_idev+0x102/0x170
[ 4157.209867][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4157.209867][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4157.209867][   T73]      netlink_rcv_skb+0x130/0x360
[ 4157.209867][   T73]      netlink_unicast+0x449/0x710
[ 4157.209867][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4157.209867][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4157.209867][   T73]      ___sys_sendmsg+0xee/0x170
[ 4157.209867][   T73]      __sys_sendmsg+0xcd/0x170
[ 4157.209867][   T73]      do_syscall_64+0xc6/0x1e0
[ 4157.209867][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4157.209867][   T73] 
[ 4157.211595][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4157.211894][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4157.211894][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4157.211894][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4157.211894][   T73]      fib6_nh_init+0xa22/0x1580
[ 4157.211894][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4157.211894][   T73]      ip6_route_add+0x1c/0x140
[ 4157.211894][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4157.211894][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4157.211894][   T73]      netlink_rcv_skb+0x130/0x360
[ 4157.211894][   T73]      netlink_unicast+0x449/0x710
[ 4157.211894][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4157.211894][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4157.211894][   T73]      ___sys_sendmsg+0xee/0x170
[ 4157.211894][   T73]      __sys_sendmsg+0xcd/0x170
[ 4157.211894][   T73]      do_syscall_64+0xc6/0x1e0
[ 4157.211894][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4157.211894][   T73] 
[ 4157.213985][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4157.213985][   T73]      dst_init+0x84/0x4a0
[ 4157.213985][   T73]      dst_alloc+0x97/0x150
[ 4157.213985][   T73]      ip6_dst_alloc+0x23/0x90
[ 4157.213985][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4157.213985][   T73]      ip6_pol_route+0x56f/0x840
[ 4157.213985][   T73]      fib6_rule_lookup+0x456/0x630
[ 4157.213985][   T73]      ip6_route_input+0x59c/0xa50
[ 4157.213985][   T73]      ipv6_rcv+0x397/0x810
[ 4157.213985][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4157.213985][   T73]      process_backlog+0x101/0x620
[ 4157.213985][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4157.213985][   T73]      net_rx_action+0x495/0xbe0
[ 4157.213985][   T73]      __do_softirq+0x1b5/0x7f6
[ 4157.213985][   T73] 
[ 4157.215895][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4157.215895][   T73]      netdev_get_by_index+0x5e/0x80
[ 4157.215895][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4157.215895][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4157.215895][   T73]      ip6_route_add+0x1c/0x140
[ 4157.215895][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4157.215895][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4157.215895][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4157.215895][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4157.215895][   T73]      netlink_rcv_skb+0x130/0x360
[ 4157.215895][   T73]      netlink_unicast+0x449/0x710
[ 4157.215895][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4157.215895][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4157.215895][   T73]      ___sys_sendmsg+0xee/0x170
[ 4157.215895][   T73]      __sys_sendmsg+0xcd/0x170
[ 4157.215895][   T73]      do_syscall_64+0xc6/0x1e0
[ 4157.215895][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4157.215895][   T73] 
[ 4157.218171][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4157.218171][   T73]      netdev_get_by_index+0x5e/0x80
[ 4157.218171][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4157.218171][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4157.218171][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4157.218171][   T73]      ipv6_add_addr+0x411/0x2000
[ 4157.218171][   T73]      inet6_addr_add+0x30e/0xa40
[ 4157.218171][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4157.218171][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4157.218171][   T73]      netlink_rcv_skb+0x130/0x360
[ 4157.218171][   T73]      netlink_unicast+0x449/0x710
[ 4157.218171][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4157.218171][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4157.218171][   T73]      ___sys_sendmsg+0xee/0x170
[ 4157.218171][   T73]      __sys_sendmsg+0xcd/0x170
[ 4157.218171][   T73]      do_syscall_64+0xc6/0x1e0
[ 4157.218171][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4157.218171][   T73] 
[ 4157.220442][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4157.220442][   T73]      netdev_get_by_index+0x5e/0x80
[ 4157.220442][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4157.220442][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4157.220442][   T73]      ip6_route_add+0x1c/0x140
[ 4157.220442][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4157.220442][   T73]      addrconf_add_dev+0xe2/0x170
[ 4157.220442][   T73]      inet6_addr_add+0x12f/0xa40
[ 4157.220442][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4157.220442][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4157.220442][   T73]      netlink_rcv_skb+0x130/0x360
[ 4157.220442][   T73]      netlink_unicast+0x449/0x710
[ 4157.220442][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4157.220442][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4157.220442][   T73]      ___sys_sendmsg+0xee/0x170
[ 4157.220442][   T73]      __sys_sendmsg+0xcd/0x170
[ 4157.220442][   T73]      do_syscall_64+0xc6/0x1e0
[ 4157.220442][   T73] 
[ 4157.222679][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4157.222679][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4157.222679][   T73]      ipv6_find_idev+0x102/0x170
[ 4157.222679][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4157.222679][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4157.222679][   T73]      netlink_rcv_skb+0x130/0x360
[ 4157.222679][   T73]      netlink_unicast+0x449/0x710
[ 4157.222679][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4157.222679][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4157.222679][   T73]      ___sys_sendmsg+0xee/0x170
[ 4157.222679][   T73]      __sys_sendmsg+0xcd/0x170
[ 4157.222679][   T73]      do_syscall_64+0xc6/0x1e0
[ 4157.222679][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4157.222679][   T73] 
[ 4157.224485][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4157.224485][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4157.224485][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4157.224485][   T73]      ipv6_find_idev+0x102/0x170
[ 4157.224485][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4157.224485][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4157.224485][   T73]      netlink_rcv_skb+0x130/0x360
[ 4157.224485][   T73]      netlink_unicast+0x449/0x710
[ 4157.224485][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4157.224485][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4157.224485][   T73]      ___sys_sendmsg+0xee/0x170
[ 4157.224485][   T73]      __sys_sendmsg+0xcd/0x170
[ 4157.224485][   T73]      do_syscall_64+0xc6/0x1e0
[ 4157.224485][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4157.224485][   T73] 
[ 4157.226399][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4157.226691][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4157.226691][   T73]      netdev_get_by_index+0x5e/0x80
[ 4157.226691][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4157.226691][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4157.226691][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4157.226691][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4157.226691][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4157.226691][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4157.226691][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4157.226691][   T73]      addrconf_dad_begin+0x310/0x670
[ 4157.226691][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4157.226691][   T73]      process_one_work+0x84d/0x18a0
[ 4157.226691][   T73]      worker_thread+0x587/0xd30
[ 4157.226691][   T73]      kthread+0x28a/0x350
[ 4157.226691][   T73]      ret_from_fork+0x31/0x70
[ 4157.226691][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4157.226691][   T73] 
[ 4157.228880][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4157.228880][   T73]      netdev_get_by_index+0x5e/0x80
[ 4157.228880][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4157.228880][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4157.228880][   T73]      ip6_route_add+0x1c/0x140
[ 4157.228880][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4157.228880][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4157.228880][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4157.228880][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4157.228880][   T73]      netlink_rcv_skb+0x130/0x360
[ 4157.228880][   T73]      netlink_unicast+0x449/0x710
[ 4157.228880][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4157.228880][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4157.228880][   T73]      ___sys_sendmsg+0xee/0x170
[ 4157.228880][   T73]      __sys_sendmsg+0xcd/0x170
[ 4157.228880][   T73]      do_syscall_64+0xc6/0x1e0
[ 4157.228880][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4157.228880][   T73] 
[ 4157.231150][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4157.231150][   T73]      netdev_get_by_index+0x5e/0x80
[ 4157.231150][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4157.231150][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4157.231150][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4157.231150][   T73]      ipv6_add_addr+0x411/0x2000
[ 4157.231150][   T73]      inet6_addr_add+0x30e/0xa40
[ 4157.231150][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4157.231150][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4157.231150][   T73]      netlink_rcv_skb+0x130/0x360
[ 4157.231150][   T73]      netlink_unicast+0x449/0x710
[ 4157.231150][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4157.231150][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4157.231150][   T73]      ___sys_sendmsg+0xee/0x170
[ 4157.231150][   T73]      __sys_sendmsg+0xcd/0x170
[ 4157.231150][   T73]      do_syscall_64+0xc6/0x1e0
[ 4157.231150][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4157.231150][   T73] 
[ 4157.233470][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4157.233470][   T73]      netdev_get_by_index+0x5e/0x80
[ 4157.233470][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4157.233470][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4157.233470][   T73]      ip6_route_add+0x1c/0x140
[ 4157.233470][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4157.233470][   T73]      addrconf_add_dev+0xe2/0x170
[ 4157.233470][   T73]      inet6_addr_add+0x12f/0xa40
[ 4157.233470][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4157.233470][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4157.233470][   T73]      netlink_rcv_skb+0x130/0x360
[ 4157.233470][   T73]      netlink_unicast+0x449/0x710
[ 4157.233470][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4157.233470][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4157.233470][   T73]      ___sys_sendmsg+0xee/0x170
[ 4157.233470][   T73]      __sys_sendmsg+0xcd/0x170
[ 4157.233470][   T73]      do_syscall_64+0xc6/0x1e0
[ 4157.233470][   T73] 
[ 4157.235644][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4157.235644][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4157.235644][   T73]      ipv6_find_idev+0x102/0x170
[ 4157.235644][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4157.235644][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4157.235644][   T73]      netlink_rcv_skb+0x130/0x360
[ 4157.235644][   T73]      netlink_unicast+0x449/0x710
[ 4157.235644][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4157.235644][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4157.235644][   T73]      ___sys_sendmsg+0xee/0x170
[ 4157.235644][   T73]      __sys_sendmsg+0xcd/0x170
[ 4157.235644][   T73]      do_syscall_64+0xc6/0x1e0
[ 4157.235644][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4157.235644][   T73] 
[ 4157.237382][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4157.237382][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4157.237382][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4157.237382][   T73]      ipv6_find_idev+0x102/0x170
[ 4157.237382][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4157.237382][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4157.237382][   T73]      netlink_rcv_skb+0x130/0x360
[ 4157.237382][   T73]      netlink_unicast+0x449/0x710
[ 4157.237382][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4157.237382][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4157.237382][   T73]      ___sys_sendmsg+0xee/0x170
[ 4157.237382][   T73]      __sys_sendmsg+0xcd/0x170
[ 4157.237382][   T73]      do_syscall_64+0xc6/0x1e0
[ 4157.237382][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4157.237382][   T73] 
[ 4167.479774][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4167.480267][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4167.480267][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4167.480267][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4167.480267][   T73]      fib6_nh_init+0xa22/0x1580
[ 4167.480267][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4167.480267][   T73]      ip6_route_add+0x1c/0x140
[ 4167.480267][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4167.480267][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4167.480267][   T73]      netlink_rcv_skb+0x130/0x360
[ 4167.480267][   T73]      netlink_unicast+0x449/0x710
[ 4167.480267][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4167.480267][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4167.480267][   T73]      ___sys_sendmsg+0xee/0x170
[ 4167.480267][   T73]      __sys_sendmsg+0xcd/0x170
[ 4167.480267][   T73]      do_syscall_64+0xc6/0x1e0
[ 4167.480267][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4167.480267][   T73] 
[ 4167.482260][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4167.482260][   T73]      dst_init+0x84/0x4a0
[ 4167.482260][   T73]      dst_alloc+0x97/0x150
[ 4167.482260][   T73]      ip6_dst_alloc+0x23/0x90
[ 4167.482260][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4167.482260][   T73]      ip6_pol_route+0x56f/0x840
[ 4167.482260][   T73]      fib6_rule_lookup+0x456/0x630
[ 4167.482260][   T73]      ip6_route_input+0x59c/0xa50
[ 4167.482260][   T73]      ipv6_rcv+0x397/0x810
[ 4167.482260][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4167.482260][   T73]      process_backlog+0x101/0x620
[ 4167.482260][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4167.482260][   T73]      net_rx_action+0x495/0xbe0
[ 4167.482260][   T73]      __do_softirq+0x1b5/0x7f6
[ 4167.482260][   T73] 
[ 4167.483892][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4167.483892][   T73]      netdev_get_by_index+0x5e/0x80
[ 4167.483892][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4167.483892][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4167.483892][   T73]      ip6_route_add+0x1c/0x140
[ 4167.483892][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4167.483892][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4167.483892][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4167.483892][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4167.483892][   T73]      netlink_rcv_skb+0x130/0x360
[ 4167.483892][   T73]      netlink_unicast+0x449/0x710
[ 4167.483892][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4167.483892][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4167.483892][   T73]      ___sys_sendmsg+0xee/0x170
[ 4167.483892][   T73]      __sys_sendmsg+0xcd/0x170
[ 4167.483892][   T73]      do_syscall_64+0xc6/0x1e0
[ 4167.483892][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4167.483892][   T73] 
[ 4167.485897][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4167.485897][   T73]      netdev_get_by_index+0x5e/0x80
[ 4167.485897][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4167.485897][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4167.485897][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4167.485897][   T73]      ipv6_add_addr+0x411/0x2000
[ 4167.485897][   T73]      inet6_addr_add+0x30e/0xa40
[ 4167.485897][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4167.485897][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4167.485897][   T73]      netlink_rcv_skb+0x130/0x360
[ 4167.485897][   T73]      netlink_unicast+0x449/0x710
[ 4167.485897][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4167.485897][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4167.485897][   T73]      ___sys_sendmsg+0xee/0x170
[ 4167.485897][   T73]      __sys_sendmsg+0xcd/0x170
[ 4167.485897][   T73]      do_syscall_64+0xc6/0x1e0
[ 4167.485897][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4167.485897][   T73] 
[ 4167.487888][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4167.487888][   T73]      netdev_get_by_index+0x5e/0x80
[ 4167.487888][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4167.487888][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4167.487888][   T73]      ip6_route_add+0x1c/0x140
[ 4167.487888][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4167.487888][   T73]      addrconf_add_dev+0xe2/0x170
[ 4167.487888][   T73]      inet6_addr_add+0x12f/0xa40
[ 4167.487888][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4167.487888][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4167.487888][   T73]      netlink_rcv_skb+0x130/0x360
[ 4167.487888][   T73]      netlink_unicast+0x449/0x710
[ 4167.487888][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4167.487888][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4167.487888][   T73]      ___sys_sendmsg+0xee/0x170
[ 4167.487888][   T73]      __sys_sendmsg+0xcd/0x170
[ 4167.487888][   T73]      do_syscall_64+0xc6/0x1e0
[ 4167.487888][   T73] 
[ 4167.489877][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4167.489877][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4167.489877][   T73]      ipv6_find_idev+0x102/0x170
[ 4167.489877][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4167.489877][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4167.489877][   T73]      netlink_rcv_skb+0x130/0x360
[ 4167.489877][   T73]      netlink_unicast+0x449/0x710
[ 4167.489877][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4167.489877][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4167.489877][   T73]      ___sys_sendmsg+0xee/0x170
[ 4167.489877][   T73]      __sys_sendmsg+0xcd/0x170
[ 4167.489877][   T73]      do_syscall_64+0xc6/0x1e0
[ 4167.489877][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4167.489877][   T73] 
[ 4167.491427][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4167.491427][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4167.491427][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4167.491427][   T73]      ipv6_find_idev+0x102/0x170
[ 4167.491427][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4167.491427][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4167.491427][   T73]      netlink_rcv_skb+0x130/0x360
[ 4167.491427][   T73]      netlink_unicast+0x449/0x710
[ 4167.491427][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4167.491427][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4167.491427][   T73]      ___sys_sendmsg+0xee/0x170
[ 4167.491427][   T73]      __sys_sendmsg+0xcd/0x170
[ 4167.491427][   T73]      do_syscall_64+0xc6/0x1e0
[ 4167.491427][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4167.491427][   T73] 
[ 4167.493104][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4167.493383][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4167.493383][   T73]      netdev_get_by_index+0x5e/0x80
[ 4167.493383][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4167.493383][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4167.493383][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4167.493383][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4167.493383][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4167.493383][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4167.493383][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4167.493383][   T73]      addrconf_dad_begin+0x310/0x670
[ 4167.493383][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4167.493383][   T73]      process_one_work+0x84d/0x18a0
[ 4167.493383][   T73]      worker_thread+0x587/0xd30
[ 4167.493383][   T73]      kthread+0x28a/0x350
[ 4167.493383][   T73]      ret_from_fork+0x31/0x70
[ 4167.493383][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4167.493383][   T73] 
[ 4167.495310][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4167.495310][   T73]      netdev_get_by_index+0x5e/0x80
[ 4167.495310][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4167.495310][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4167.495310][   T73]      ip6_route_add+0x1c/0x140
[ 4167.495310][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4167.495310][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4167.495310][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4167.495310][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4167.495310][   T73]      netlink_rcv_skb+0x130/0x360
[ 4167.495310][   T73]      netlink_unicast+0x449/0x710
[ 4167.495310][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4167.495310][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4167.495310][   T73]      ___sys_sendmsg+0xee/0x170
[ 4167.495310][   T73]      __sys_sendmsg+0xcd/0x170
[ 4167.495310][   T73]      do_syscall_64+0xc6/0x1e0
[ 4167.495310][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4167.495310][   T73] 
[ 4167.497305][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4167.497305][   T73]      netdev_get_by_index+0x5e/0x80
[ 4167.497305][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4167.497305][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4167.497305][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4167.497305][   T73]      ipv6_add_addr+0x411/0x2000
[ 4167.497305][   T73]      inet6_addr_add+0x30e/0xa40
[ 4167.497305][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4167.497305][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4167.497305][   T73]      netlink_rcv_skb+0x130/0x360
[ 4167.497305][   T73]      netlink_unicast+0x449/0x710
[ 4167.497305][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4167.497305][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4167.497305][   T73]      ___sys_sendmsg+0xee/0x170
[ 4167.497305][   T73]      __sys_sendmsg+0xcd/0x170
[ 4167.497305][   T73]      do_syscall_64+0xc6/0x1e0
[ 4167.497305][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4167.497305][   T73] 
[ 4167.499303][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4167.499303][   T73]      netdev_get_by_index+0x5e/0x80
[ 4167.499303][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4167.499303][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4167.499303][   T73]      ip6_route_add+0x1c/0x140
[ 4167.499303][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4167.499303][   T73]      addrconf_add_dev+0xe2/0x170
[ 4167.499303][   T73]      inet6_addr_add+0x12f/0xa40
[ 4167.499303][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4167.499303][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4167.499303][   T73]      netlink_rcv_skb+0x130/0x360
[ 4167.499303][   T73]      netlink_unicast+0x449/0x710
[ 4167.499303][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4167.499303][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4167.499303][   T73]      ___sys_sendmsg+0xee/0x170
[ 4167.499303][   T73]      __sys_sendmsg+0xcd/0x170
[ 4167.499303][   T73]      do_syscall_64+0xc6/0x1e0
[ 4167.499303][   T73] 
[ 4167.503392][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4167.503392][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4167.503392][   T73]      ipv6_find_idev+0x102/0x170
[ 4167.503392][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4167.503392][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4167.503392][   T73]      netlink_rcv_skb+0x130/0x360
[ 4167.503392][   T73]      netlink_unicast+0x449/0x710
[ 4167.503392][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4167.503392][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4167.503392][   T73]      ___sys_sendmsg+0xee/0x170
[ 4167.503392][   T73]      __sys_sendmsg+0xcd/0x170
[ 4167.503392][   T73]      do_syscall_64+0xc6/0x1e0
[ 4167.503392][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4167.503392][   T73] 
[ 4167.504932][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4167.504932][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4167.504932][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4167.504932][   T73]      ipv6_find_idev+0x102/0x170
[ 4167.504932][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4167.504932][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4167.504932][   T73]      netlink_rcv_skb+0x130/0x360
[ 4167.504932][   T73]      netlink_unicast+0x449/0x710
[ 4167.504932][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4167.504932][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4167.504932][   T73]      ___sys_sendmsg+0xee/0x170
[ 4167.504932][   T73]      __sys_sendmsg+0xcd/0x170
[ 4167.504932][   T73]      do_syscall_64+0xc6/0x1e0
[ 4167.504932][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4167.504932][   T73] 
[ 4167.506635][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4167.506921][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4167.506921][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4167.506921][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4167.506921][   T73]      fib6_nh_init+0xa22/0x1580
[ 4167.506921][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4167.506921][   T73]      ip6_route_add+0x1c/0x140
[ 4167.506921][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4167.506921][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4167.506921][   T73]      netlink_rcv_skb+0x130/0x360
[ 4167.506921][   T73]      netlink_unicast+0x449/0x710
[ 4167.506921][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4167.506921][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4167.506921][   T73]      ___sys_sendmsg+0xee/0x170
[ 4167.506921][   T73]      __sys_sendmsg+0xcd/0x170
[ 4167.506921][   T73]      do_syscall_64+0xc6/0x1e0
[ 4167.506921][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4167.506921][   T73] 
[ 4167.508984][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4167.508984][   T73]      dst_init+0x84/0x4a0
[ 4167.508984][   T73]      dst_alloc+0x97/0x150
[ 4167.508984][   T73]      ip6_dst_alloc+0x23/0x90
[ 4167.508984][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4167.508984][   T73]      ip6_pol_route+0x56f/0x840
[ 4167.508984][   T73]      fib6_rule_lookup+0x456/0x630
[ 4167.508984][   T73]      ip6_route_input+0x59c/0xa50
[ 4167.508984][   T73]      ipv6_rcv+0x397/0x810
[ 4167.508984][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4167.508984][   T73]      process_backlog+0x101/0x620
[ 4167.508984][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4167.508984][   T73]      net_rx_action+0x495/0xbe0
[ 4167.508984][   T73]      __do_softirq+0x1b5/0x7f6
[ 4167.508984][   T73] 
[ 4167.510868][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4167.510868][   T73]      netdev_get_by_index+0x5e/0x80
[ 4167.510868][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4167.510868][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4167.510868][   T73]      ip6_route_add+0x1c/0x140
[ 4167.510868][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4167.510868][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4167.510868][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4167.510868][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4167.510868][   T73]      netlink_rcv_skb+0x130/0x360
[ 4167.510868][   T73]      netlink_unicast+0x449/0x710
[ 4167.510868][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4167.510868][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4167.510868][   T73]      ___sys_sendmsg+0xee/0x170
[ 4167.510868][   T73]      __sys_sendmsg+0xcd/0x170
[ 4167.510868][   T73]      do_syscall_64+0xc6/0x1e0
[ 4167.510868][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4167.510868][   T73] 
[ 4167.513111][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4167.513111][   T73]      netdev_get_by_index+0x5e/0x80
[ 4167.513111][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4167.513111][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4167.513111][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4167.513111][   T73]      ipv6_add_addr+0x411/0x2000
[ 4167.513111][   T73]      inet6_addr_add+0x30e/0xa40
[ 4167.513111][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4167.513111][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4167.513111][   T73]      netlink_rcv_skb+0x130/0x360
[ 4167.513111][   T73]      netlink_unicast+0x449/0x710
[ 4167.513111][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4167.513111][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4167.513111][   T73]      ___sys_sendmsg+0xee/0x170
[ 4167.513111][   T73]      __sys_sendmsg+0xcd/0x170
[ 4167.513111][   T73]      do_syscall_64+0xc6/0x1e0
[ 4167.513111][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4167.513111][   T73] 
[ 4167.515361][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4167.515361][   T73]      netdev_get_by_index+0x5e/0x80
[ 4167.515361][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4167.515361][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4167.515361][   T73]      ip6_route_add+0x1c/0x140
[ 4167.515361][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4167.515361][   T73]      addrconf_add_dev+0xe2/0x170
[ 4167.515361][   T73]      inet6_addr_add+0x12f/0xa40
[ 4167.515361][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4167.515361][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4167.515361][   T73]      netlink_rcv_skb+0x130/0x360
[ 4167.515361][   T73]      netlink_unicast+0x449/0x710
[ 4167.515361][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4167.515361][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4167.515361][   T73]      ___sys_sendmsg+0xee/0x170
[ 4167.515361][   T73]      __sys_sendmsg+0xcd/0x170
[ 4167.515361][   T73]      do_syscall_64+0xc6/0x1e0
[ 4167.515361][   T73] 
[ 4167.517519][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4167.517519][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4167.517519][   T73]      ipv6_find_idev+0x102/0x170
[ 4167.517519][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4167.517519][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4167.517519][   T73]      netlink_rcv_skb+0x130/0x360
[ 4167.517519][   T73]      netlink_unicast+0x449/0x710
[ 4167.517519][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4167.517519][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4167.517519][   T73]      ___sys_sendmsg+0xee/0x170
[ 4167.517519][   T73]      __sys_sendmsg+0xcd/0x170
[ 4167.517519][   T73]      do_syscall_64+0xc6/0x1e0
[ 4167.517519][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4167.517519][   T73] 
[ 4167.519293][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4167.519293][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4167.519293][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4167.519293][   T73]      ipv6_find_idev+0x102/0x170
[ 4167.519293][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4167.519293][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4167.519293][   T73]      netlink_rcv_skb+0x130/0x360
[ 4167.519293][   T73]      netlink_unicast+0x449/0x710
[ 4167.519293][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4167.519293][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4167.519293][   T73]      ___sys_sendmsg+0xee/0x170
[ 4167.519293][   T73]      __sys_sendmsg+0xcd/0x170
[ 4167.519293][   T73]      do_syscall_64+0xc6/0x1e0
[ 4167.519293][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4167.519293][   T73] 
[ 4167.521218][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4167.521499][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4167.521499][   T73]      netdev_get_by_index+0x5e/0x80
[ 4167.521499][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4167.521499][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4167.521499][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4167.521499][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4167.521499][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4167.521499][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4167.521499][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4167.521499][   T73]      addrconf_dad_begin+0x310/0x670
[ 4167.521499][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4167.521499][   T73]      process_one_work+0x84d/0x18a0
[ 4167.521499][   T73]      worker_thread+0x587/0xd30
[ 4167.521499][   T73]      kthread+0x28a/0x350
[ 4167.521499][   T73]      ret_from_fork+0x31/0x70
[ 4167.521499][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4167.521499][   T73] 
[ 4167.523645][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4167.523645][   T73]      netdev_get_by_index+0x5e/0x80
[ 4167.523645][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4167.523645][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4167.523645][   T73]      ip6_route_add+0x1c/0x140
[ 4167.523645][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4167.523645][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4167.523645][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4167.523645][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4167.523645][   T73]      netlink_rcv_skb+0x130/0x360
[ 4167.523645][   T73]      netlink_unicast+0x449/0x710
[ 4167.523645][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4167.523645][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4167.523645][   T73]      ___sys_sendmsg+0xee/0x170
[ 4167.523645][   T73]      __sys_sendmsg+0xcd/0x170
[ 4167.523645][   T73]      do_syscall_64+0xc6/0x1e0
[ 4167.523645][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4167.523645][   T73] 
[ 4167.525889][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4167.525889][   T73]      netdev_get_by_index+0x5e/0x80
[ 4167.525889][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4167.525889][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4167.525889][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4167.525889][   T73]      ipv6_add_addr+0x411/0x2000
[ 4167.525889][   T73]      inet6_addr_add+0x30e/0xa40
[ 4167.525889][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4167.525889][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4167.525889][   T73]      netlink_rcv_skb+0x130/0x360
[ 4167.525889][   T73]      netlink_unicast+0x449/0x710
[ 4167.525889][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4167.525889][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4167.525889][   T73]      ___sys_sendmsg+0xee/0x170
[ 4167.525889][   T73]      __sys_sendmsg+0xcd/0x170
[ 4167.525889][   T73]      do_syscall_64+0xc6/0x1e0
[ 4167.525889][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4167.525889][   T73] 
[ 4167.528135][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4167.528135][   T73]      netdev_get_by_index+0x5e/0x80
[ 4167.528135][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4167.528135][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4167.528135][   T73]      ip6_route_add+0x1c/0x140
[ 4167.528135][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4167.528135][   T73]      addrconf_add_dev+0xe2/0x170
[ 4167.528135][   T73]      inet6_addr_add+0x12f/0xa40
[ 4167.528135][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4167.528135][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4167.528135][   T73]      netlink_rcv_skb+0x130/0x360
[ 4167.528135][   T73]      netlink_unicast+0x449/0x710
[ 4167.528135][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4167.528135][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4167.528135][   T73]      ___sys_sendmsg+0xee/0x170
[ 4167.528135][   T73]      __sys_sendmsg+0xcd/0x170
[ 4167.528135][   T73]      do_syscall_64+0xc6/0x1e0
[ 4167.528135][   T73] 
[ 4167.530424][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4167.530424][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4167.530424][   T73]      ipv6_find_idev+0x102/0x170
[ 4167.530424][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4167.530424][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4167.530424][   T73]      netlink_rcv_skb+0x130/0x360
[ 4167.530424][   T73]      netlink_unicast+0x449/0x710
[ 4167.530424][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4167.530424][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4167.530424][   T73]      ___sys_sendmsg+0xee/0x170
[ 4167.530424][   T73]      __sys_sendmsg+0xcd/0x170
[ 4167.530424][   T73]      do_syscall_64+0xc6/0x1e0
[ 4167.530424][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4167.530424][   T73] 
[ 4167.532141][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4167.532141][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4167.532141][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4167.532141][   T73]      ipv6_find_idev+0x102/0x170
[ 4167.532141][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4167.532141][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4167.532141][   T73]      netlink_rcv_skb+0x130/0x360
[ 4167.532141][   T73]      netlink_unicast+0x449/0x710
[ 4167.532141][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4167.532141][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4167.532141][   T73]      ___sys_sendmsg+0xee/0x170
[ 4167.532141][   T73]      __sys_sendmsg+0xcd/0x170
[ 4167.532141][   T73]      do_syscall_64+0xc6/0x1e0
[ 4167.532141][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4167.532141][   T73] 
[ 4177.551795][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4177.552350][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4177.552350][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4177.552350][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4177.552350][   T73]      fib6_nh_init+0xa22/0x1580
[ 4177.552350][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4177.552350][   T73]      ip6_route_add+0x1c/0x140
[ 4177.552350][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4177.552350][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4177.552350][   T73]      netlink_rcv_skb+0x130/0x360
[ 4177.552350][   T73]      netlink_unicast+0x449/0x710
[ 4177.552350][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4177.552350][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4177.552350][   T73]      ___sys_sendmsg+0xee/0x170
[ 4177.552350][   T73]      __sys_sendmsg+0xcd/0x170
[ 4177.552350][   T73]      do_syscall_64+0xc6/0x1e0
[ 4177.552350][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4177.552350][   T73] 
[ 4177.554257][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4177.554257][   T73]      dst_init+0x84/0x4a0
[ 4177.554257][   T73]      dst_alloc+0x97/0x150
[ 4177.554257][   T73]      ip6_dst_alloc+0x23/0x90
[ 4177.554257][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4177.554257][   T73]      ip6_pol_route+0x56f/0x840
[ 4177.554257][   T73]      fib6_rule_lookup+0x456/0x630
[ 4177.554257][   T73]      ip6_route_input+0x59c/0xa50
[ 4177.554257][   T73]      ipv6_rcv+0x397/0x810
[ 4177.554257][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4177.554257][   T73]      process_backlog+0x101/0x620
[ 4177.554257][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4177.554257][   T73]      net_rx_action+0x495/0xbe0
[ 4177.554257][   T73]      __do_softirq+0x1b5/0x7f6
[ 4177.554257][   T73] 
[ 4177.555920][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4177.555920][   T73]      netdev_get_by_index+0x5e/0x80
[ 4177.555920][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4177.555920][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4177.555920][   T73]      ip6_route_add+0x1c/0x140
[ 4177.555920][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4177.555920][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4177.555920][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4177.555920][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4177.555920][   T73]      netlink_rcv_skb+0x130/0x360
[ 4177.555920][   T73]      netlink_unicast+0x449/0x710
[ 4177.555920][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4177.555920][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4177.555920][   T73]      ___sys_sendmsg+0xee/0x170
[ 4177.555920][   T73]      __sys_sendmsg+0xcd/0x170
[ 4177.555920][   T73]      do_syscall_64+0xc6/0x1e0
[ 4177.555920][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4177.555920][   T73] 
[ 4177.557920][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4177.557920][   T73]      netdev_get_by_index+0x5e/0x80
[ 4177.557920][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4177.557920][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4177.557920][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4177.557920][   T73]      ipv6_add_addr+0x411/0x2000
[ 4177.557920][   T73]      inet6_addr_add+0x30e/0xa40
[ 4177.557920][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4177.557920][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4177.557920][   T73]      netlink_rcv_skb+0x130/0x360
[ 4177.557920][   T73]      netlink_unicast+0x449/0x710
[ 4177.557920][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4177.557920][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4177.557920][   T73]      ___sys_sendmsg+0xee/0x170
[ 4177.557920][   T73]      __sys_sendmsg+0xcd/0x170
[ 4177.557920][   T73]      do_syscall_64+0xc6/0x1e0
[ 4177.557920][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4177.557920][   T73] 
[ 4177.559907][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4177.559907][   T73]      netdev_get_by_index+0x5e/0x80
[ 4177.559907][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4177.559907][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4177.559907][   T73]      ip6_route_add+0x1c/0x140
[ 4177.559907][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4177.559907][   T73]      addrconf_add_dev+0xe2/0x170
[ 4177.559907][   T73]      inet6_addr_add+0x12f/0xa40
[ 4177.559907][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4177.559907][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4177.559907][   T73]      netlink_rcv_skb+0x130/0x360
[ 4177.559907][   T73]      netlink_unicast+0x449/0x710
[ 4177.559907][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4177.559907][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4177.559907][   T73]      ___sys_sendmsg+0xee/0x170
[ 4177.559907][   T73]      __sys_sendmsg+0xcd/0x170
[ 4177.559907][   T73]      do_syscall_64+0xc6/0x1e0
[ 4177.559907][   T73] 
[ 4177.561870][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4177.561870][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4177.561870][   T73]      ipv6_find_idev+0x102/0x170
[ 4177.561870][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4177.561870][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4177.561870][   T73]      netlink_rcv_skb+0x130/0x360
[ 4177.561870][   T73]      netlink_unicast+0x449/0x710
[ 4177.561870][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4177.561870][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4177.561870][   T73]      ___sys_sendmsg+0xee/0x170
[ 4177.561870][   T73]      __sys_sendmsg+0xcd/0x170
[ 4177.561870][   T73]      do_syscall_64+0xc6/0x1e0
[ 4177.561870][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4177.561870][   T73] 
[ 4177.563411][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4177.563411][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4177.563411][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4177.563411][   T73]      ipv6_find_idev+0x102/0x170
[ 4177.563411][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4177.563411][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4177.563411][   T73]      netlink_rcv_skb+0x130/0x360
[ 4177.563411][   T73]      netlink_unicast+0x449/0x710
[ 4177.563411][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4177.563411][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4177.563411][   T73]      ___sys_sendmsg+0xee/0x170
[ 4177.563411][   T73]      __sys_sendmsg+0xcd/0x170
[ 4177.563411][   T73]      do_syscall_64+0xc6/0x1e0
[ 4177.563411][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4177.563411][   T73] 
[ 4177.565106][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4177.565387][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4177.565387][   T73]      netdev_get_by_index+0x5e/0x80
[ 4177.565387][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4177.565387][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4177.565387][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4177.565387][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4177.565387][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4177.565387][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4177.565387][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4177.565387][   T73]      addrconf_dad_begin+0x310/0x670
[ 4177.565387][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4177.565387][   T73]      process_one_work+0x84d/0x18a0
[ 4177.565387][   T73]      worker_thread+0x587/0xd30
[ 4177.565387][   T73]      kthread+0x28a/0x350
[ 4177.565387][   T73]      ret_from_fork+0x31/0x70
[ 4177.565387][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4177.565387][   T73] 
[ 4177.567302][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4177.567302][   T73]      netdev_get_by_index+0x5e/0x80
[ 4177.567302][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4177.567302][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4177.567302][   T73]      ip6_route_add+0x1c/0x140
[ 4177.567302][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4177.567302][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4177.567302][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4177.567302][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4177.567302][   T73]      netlink_rcv_skb+0x130/0x360
[ 4177.567302][   T73]      netlink_unicast+0x449/0x710
[ 4177.567302][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4177.567302][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4177.567302][   T73]      ___sys_sendmsg+0xee/0x170
[ 4177.567302][   T73]      __sys_sendmsg+0xcd/0x170
[ 4177.567302][   T73]      do_syscall_64+0xc6/0x1e0
[ 4177.567302][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4177.567302][   T73] 
[ 4177.569306][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4177.569306][   T73]      netdev_get_by_index+0x5e/0x80
[ 4177.569306][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4177.569306][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4177.569306][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4177.569306][   T73]      ipv6_add_addr+0x411/0x2000
[ 4177.569306][   T73]      inet6_addr_add+0x30e/0xa40
[ 4177.569306][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4177.569306][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4177.569306][   T73]      netlink_rcv_skb+0x130/0x360
[ 4177.569306][   T73]      netlink_unicast+0x449/0x710
[ 4177.569306][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4177.569306][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4177.569306][   T73]      ___sys_sendmsg+0xee/0x170
[ 4177.569306][   T73]      __sys_sendmsg+0xcd/0x170
[ 4177.569306][   T73]      do_syscall_64+0xc6/0x1e0
[ 4177.569306][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4177.569306][   T73] 
[ 4177.571292][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4177.571292][   T73]      netdev_get_by_index+0x5e/0x80
[ 4177.571292][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4177.571292][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4177.571292][   T73]      ip6_route_add+0x1c/0x140
[ 4177.571292][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4177.571292][   T73]      addrconf_add_dev+0xe2/0x170
[ 4177.571292][   T73]      inet6_addr_add+0x12f/0xa40
[ 4177.571292][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4177.571292][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4177.571292][   T73]      netlink_rcv_skb+0x130/0x360
[ 4177.571292][   T73]      netlink_unicast+0x449/0x710
[ 4177.571292][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4177.571292][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4177.571292][   T73]      ___sys_sendmsg+0xee/0x170
[ 4177.571292][   T73]      __sys_sendmsg+0xcd/0x170
[ 4177.571292][   T73]      do_syscall_64+0xc6/0x1e0
[ 4177.571292][   T73] 
[ 4177.573253][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4177.573253][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4177.573253][   T73]      ipv6_find_idev+0x102/0x170
[ 4177.573253][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4177.573253][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4177.573253][   T73]      netlink_rcv_skb+0x130/0x360
[ 4177.573253][   T73]      netlink_unicast+0x449/0x710
[ 4177.573253][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4177.573253][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4177.573253][   T73]      ___sys_sendmsg+0xee/0x170
[ 4177.573253][   T73]      __sys_sendmsg+0xcd/0x170
[ 4177.573253][   T73]      do_syscall_64+0xc6/0x1e0
[ 4177.573253][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4177.573253][   T73] 
[ 4177.574793][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4177.574793][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4177.574793][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4177.574793][   T73]      ipv6_find_idev+0x102/0x170
[ 4177.574793][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4177.574793][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4177.574793][   T73]      netlink_rcv_skb+0x130/0x360
[ 4177.574793][   T73]      netlink_unicast+0x449/0x710
[ 4177.574793][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4177.574793][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4177.574793][   T73]      ___sys_sendmsg+0xee/0x170
[ 4177.574793][   T73]      __sys_sendmsg+0xcd/0x170
[ 4177.574793][   T73]      do_syscall_64+0xc6/0x1e0
[ 4177.574793][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4177.574793][   T73] 
[ 4177.576477][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4177.576754][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4177.576754][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4177.576754][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4177.576754][   T73]      fib6_nh_init+0xa22/0x1580
[ 4177.576754][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4177.576754][   T73]      ip6_route_add+0x1c/0x140
[ 4177.576754][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4177.576754][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4177.576754][   T73]      netlink_rcv_skb+0x130/0x360
[ 4177.576754][   T73]      netlink_unicast+0x449/0x710
[ 4177.576754][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4177.576754][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4177.576754][   T73]      ___sys_sendmsg+0xee/0x170
[ 4177.576754][   T73]      __sys_sendmsg+0xcd/0x170
[ 4177.576754][   T73]      do_syscall_64+0xc6/0x1e0
[ 4177.576754][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4177.576754][   T73] 
[ 4177.578819][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4177.578819][   T73]      dst_init+0x84/0x4a0
[ 4177.578819][   T73]      dst_alloc+0x97/0x150
[ 4177.578819][   T73]      ip6_dst_alloc+0x23/0x90
[ 4177.578819][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4177.578819][   T73]      ip6_pol_route+0x56f/0x840
[ 4177.578819][   T73]      fib6_rule_lookup+0x456/0x630
[ 4177.578819][   T73]      ip6_route_input+0x59c/0xa50
[ 4177.578819][   T73]      ipv6_rcv+0x397/0x810
[ 4177.578819][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4177.578819][   T73]      process_backlog+0x101/0x620
[ 4177.578819][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4177.578819][   T73]      net_rx_action+0x495/0xbe0
[ 4177.578819][   T73]      __do_softirq+0x1b5/0x7f6
[ 4177.578819][   T73] 
[ 4177.580631][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4177.580631][   T73]      netdev_get_by_index+0x5e/0x80
[ 4177.580631][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4177.580631][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4177.580631][   T73]      ip6_route_add+0x1c/0x140
[ 4177.580631][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4177.580631][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4177.580631][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4177.580631][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4177.580631][   T73]      netlink_rcv_skb+0x130/0x360
[ 4177.580631][   T73]      netlink_unicast+0x449/0x710
[ 4177.580631][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4177.580631][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4177.580631][   T73]      ___sys_sendmsg+0xee/0x170
[ 4177.580631][   T73]      __sys_sendmsg+0xcd/0x170
[ 4177.580631][   T73]      do_syscall_64+0xc6/0x1e0
[ 4177.580631][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4177.580631][   T73] 
[ 4177.582876][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4177.582876][   T73]      netdev_get_by_index+0x5e/0x80
[ 4177.582876][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4177.582876][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4177.582876][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4177.582876][   T73]      ipv6_add_addr+0x411/0x2000
[ 4177.582876][   T73]      inet6_addr_add+0x30e/0xa40
[ 4177.582876][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4177.582876][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4177.582876][   T73]      netlink_rcv_skb+0x130/0x360
[ 4177.582876][   T73]      netlink_unicast+0x449/0x710
[ 4177.582876][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4177.582876][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4177.582876][   T73]      ___sys_sendmsg+0xee/0x170
[ 4177.582876][   T73]      __sys_sendmsg+0xcd/0x170
[ 4177.582876][   T73]      do_syscall_64+0xc6/0x1e0
[ 4177.582876][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4177.582876][   T73] 
[ 4177.585192][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4177.585192][   T73]      netdev_get_by_index+0x5e/0x80
[ 4177.585192][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4177.585192][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4177.585192][   T73]      ip6_route_add+0x1c/0x140
[ 4177.585192][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4177.585192][   T73]      addrconf_add_dev+0xe2/0x170
[ 4177.585192][   T73]      inet6_addr_add+0x12f/0xa40
[ 4177.585192][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4177.585192][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4177.585192][   T73]      netlink_rcv_skb+0x130/0x360
[ 4177.585192][   T73]      netlink_unicast+0x449/0x710
[ 4177.585192][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4177.585192][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4177.585192][   T73]      ___sys_sendmsg+0xee/0x170
[ 4177.585192][   T73]      __sys_sendmsg+0xcd/0x170
[ 4177.585192][   T73]      do_syscall_64+0xc6/0x1e0
[ 4177.585192][   T73] 
[ 4177.587284][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4177.587284][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4177.587284][   T73]      ipv6_find_idev+0x102/0x170
[ 4177.587284][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4177.587284][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4177.587284][   T73]      netlink_rcv_skb+0x130/0x360
[ 4177.587284][   T73]      netlink_unicast+0x449/0x710
[ 4177.587284][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4177.587284][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4177.587284][   T73]      ___sys_sendmsg+0xee/0x170
[ 4177.587284][   T73]      __sys_sendmsg+0xcd/0x170
[ 4177.587284][   T73]      do_syscall_64+0xc6/0x1e0
[ 4177.587284][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4177.587284][   T73] 
[ 4177.588999][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4177.588999][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4177.588999][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4177.588999][   T73]      ipv6_find_idev+0x102/0x170
[ 4177.588999][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4177.588999][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4177.588999][   T73]      netlink_rcv_skb+0x130/0x360
[ 4177.588999][   T73]      netlink_unicast+0x449/0x710
[ 4177.588999][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4177.588999][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4177.588999][   T73]      ___sys_sendmsg+0xee/0x170
[ 4177.588999][   T73]      __sys_sendmsg+0xcd/0x170
[ 4177.588999][   T73]      do_syscall_64+0xc6/0x1e0
[ 4177.588999][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4177.588999][   T73] 
[ 4177.590916][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4177.591196][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4177.591196][   T73]      netdev_get_by_index+0x5e/0x80
[ 4177.591196][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4177.591196][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4177.591196][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4177.591196][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4177.591196][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4177.591196][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4177.591196][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4177.591196][   T73]      addrconf_dad_begin+0x310/0x670
[ 4177.591196][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4177.591196][   T73]      process_one_work+0x84d/0x18a0
[ 4177.591196][   T73]      worker_thread+0x587/0xd30
[ 4177.591196][   T73]      kthread+0x28a/0x350
[ 4177.591196][   T73]      ret_from_fork+0x31/0x70
[ 4177.591196][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4177.591196][   T73] 
[ 4177.593375][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4177.593375][   T73]      netdev_get_by_index+0x5e/0x80
[ 4177.593375][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4177.593375][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4177.593375][   T73]      ip6_route_add+0x1c/0x140
[ 4177.593375][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4177.593375][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4177.593375][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4177.593375][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4177.593375][   T73]      netlink_rcv_skb+0x130/0x360
[ 4177.593375][   T73]      netlink_unicast+0x449/0x710
[ 4177.593375][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4177.593375][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4177.593375][   T73]      ___sys_sendmsg+0xee/0x170
[ 4177.593375][   T73]      __sys_sendmsg+0xcd/0x170
[ 4177.593375][   T73]      do_syscall_64+0xc6/0x1e0
[ 4177.593375][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4177.593375][   T73] 
[ 4177.595663][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4177.595663][   T73]      netdev_get_by_index+0x5e/0x80
[ 4177.595663][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4177.595663][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4177.595663][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4177.595663][   T73]      ipv6_add_addr+0x411/0x2000
[ 4177.595663][   T73]      inet6_addr_add+0x30e/0xa40
[ 4177.595663][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4177.595663][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4177.595663][   T73]      netlink_rcv_skb+0x130/0x360
[ 4177.595663][   T73]      netlink_unicast+0x449/0x710
[ 4177.595663][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4177.595663][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4177.595663][   T73]      ___sys_sendmsg+0xee/0x170
[ 4177.595663][   T73]      __sys_sendmsg+0xcd/0x170
[ 4177.595663][   T73]      do_syscall_64+0xc6/0x1e0
[ 4177.595663][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4177.595663][   T73] 
[ 4177.597820][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4177.597820][   T73]      netdev_get_by_index+0x5e/0x80
[ 4177.597820][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4177.597820][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4177.597820][   T73]      ip6_route_add+0x1c/0x140
[ 4177.597820][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4177.597820][   T73]      addrconf_add_dev+0xe2/0x170
[ 4177.597820][   T73]      inet6_addr_add+0x12f/0xa40
[ 4177.597820][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4177.597820][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4177.597820][   T73]      netlink_rcv_skb+0x130/0x360
[ 4177.597820][   T73]      netlink_unicast+0x449/0x710
[ 4177.597820][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4177.597820][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4177.597820][   T73]      ___sys_sendmsg+0xee/0x170
[ 4177.597820][   T73]      __sys_sendmsg+0xcd/0x170
[ 4177.597820][   T73]      do_syscall_64+0xc6/0x1e0
[ 4177.597820][   T73] 
[ 4177.600007][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4177.600007][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4177.600007][   T73]      ipv6_find_idev+0x102/0x170
[ 4177.600007][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4177.600007][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4177.600007][   T73]      netlink_rcv_skb+0x130/0x360
[ 4177.600007][   T73]      netlink_unicast+0x449/0x710
[ 4177.600007][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4177.600007][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4177.600007][   T73]      ___sys_sendmsg+0xee/0x170
[ 4177.600007][   T73]      __sys_sendmsg+0xcd/0x170
[ 4177.600007][   T73]      do_syscall_64+0xc6/0x1e0
[ 4177.600007][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4177.600007][   T73] 
[ 4177.601714][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4177.601714][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4177.601714][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4177.601714][   T73]      ipv6_find_idev+0x102/0x170
[ 4177.601714][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4177.601714][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4177.601714][   T73]      netlink_rcv_skb+0x130/0x360
[ 4177.601714][   T73]      netlink_unicast+0x449/0x710
[ 4177.601714][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4177.601714][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4177.601714][   T73]      ___sys_sendmsg+0xee/0x170
[ 4177.601714][   T73]      __sys_sendmsg+0xcd/0x170
[ 4177.601714][   T73]      do_syscall_64+0xc6/0x1e0
[ 4177.601714][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4177.601714][   T73] 
[ 4187.839773][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4187.840254][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4187.840254][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4187.840254][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4187.840254][   T73]      fib6_nh_init+0xa22/0x1580
[ 4187.840254][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4187.840254][   T73]      ip6_route_add+0x1c/0x140
[ 4187.840254][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4187.840254][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4187.840254][   T73]      netlink_rcv_skb+0x130/0x360
[ 4187.840254][   T73]      netlink_unicast+0x449/0x710
[ 4187.840254][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4187.840254][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4187.840254][   T73]      ___sys_sendmsg+0xee/0x170
[ 4187.840254][   T73]      __sys_sendmsg+0xcd/0x170
[ 4187.840254][   T73]      do_syscall_64+0xc6/0x1e0
[ 4187.840254][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4187.840254][   T73] 
[ 4187.842262][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4187.842262][   T73]      dst_init+0x84/0x4a0
[ 4187.842262][   T73]      dst_alloc+0x97/0x150
[ 4187.842262][   T73]      ip6_dst_alloc+0x23/0x90
[ 4187.842262][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4187.842262][   T73]      ip6_pol_route+0x56f/0x840
[ 4187.842262][   T73]      fib6_rule_lookup+0x456/0x630
[ 4187.842262][   T73]      ip6_route_input+0x59c/0xa50
[ 4187.842262][   T73]      ipv6_rcv+0x397/0x810
[ 4187.842262][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4187.842262][   T73]      process_backlog+0x101/0x620
[ 4187.842262][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4187.842262][   T73]      net_rx_action+0x495/0xbe0
[ 4187.842262][   T73]      __do_softirq+0x1b5/0x7f6
[ 4187.842262][   T73] 
[ 4187.843907][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4187.843907][   T73]      netdev_get_by_index+0x5e/0x80
[ 4187.843907][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4187.843907][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4187.843907][   T73]      ip6_route_add+0x1c/0x140
[ 4187.843907][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4187.843907][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4187.843907][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4187.843907][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4187.843907][   T73]      netlink_rcv_skb+0x130/0x360
[ 4187.843907][   T73]      netlink_unicast+0x449/0x710
[ 4187.843907][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4187.843907][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4187.843907][   T73]      ___sys_sendmsg+0xee/0x170
[ 4187.843907][   T73]      __sys_sendmsg+0xcd/0x170
[ 4187.843907][   T73]      do_syscall_64+0xc6/0x1e0
[ 4187.843907][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4187.843907][   T73] 
[ 4187.845915][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4187.845915][   T73]      netdev_get_by_index+0x5e/0x80
[ 4187.845915][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4187.845915][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4187.845915][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4187.845915][   T73]      ipv6_add_addr+0x411/0x2000
[ 4187.845915][   T73]      inet6_addr_add+0x30e/0xa40
[ 4187.845915][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4187.845915][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4187.845915][   T73]      netlink_rcv_skb+0x130/0x360
[ 4187.845915][   T73]      netlink_unicast+0x449/0x710
[ 4187.845915][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4187.845915][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4187.845915][   T73]      ___sys_sendmsg+0xee/0x170
[ 4187.845915][   T73]      __sys_sendmsg+0xcd/0x170
[ 4187.845915][   T73]      do_syscall_64+0xc6/0x1e0
[ 4187.845915][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4187.845915][   T73] 
[ 4187.847907][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4187.847907][   T73]      netdev_get_by_index+0x5e/0x80
[ 4187.847907][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4187.847907][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4187.847907][   T73]      ip6_route_add+0x1c/0x140
[ 4187.847907][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4187.847907][   T73]      addrconf_add_dev+0xe2/0x170
[ 4187.847907][   T73]      inet6_addr_add+0x12f/0xa40
[ 4187.847907][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4187.847907][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4187.847907][   T73]      netlink_rcv_skb+0x130/0x360
[ 4187.847907][   T73]      netlink_unicast+0x449/0x710
[ 4187.847907][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4187.847907][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4187.847907][   T73]      ___sys_sendmsg+0xee/0x170
[ 4187.847907][   T73]      __sys_sendmsg+0xcd/0x170
[ 4187.847907][   T73]      do_syscall_64+0xc6/0x1e0
[ 4187.847907][   T73] 
[ 4187.849860][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4187.849860][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4187.849860][   T73]      ipv6_find_idev+0x102/0x170
[ 4187.849860][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4187.849860][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4187.849860][   T73]      netlink_rcv_skb+0x130/0x360
[ 4187.849860][   T73]      netlink_unicast+0x449/0x710
[ 4187.849860][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4187.849860][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4187.849860][   T73]      ___sys_sendmsg+0xee/0x170
[ 4187.849860][   T73]      __sys_sendmsg+0xcd/0x170
[ 4187.849860][   T73]      do_syscall_64+0xc6/0x1e0
[ 4187.849860][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4187.849860][   T73] 
[ 4187.851400][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4187.851400][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4187.851400][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4187.851400][   T73]      ipv6_find_idev+0x102/0x170
[ 4187.851400][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4187.851400][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4187.851400][   T73]      netlink_rcv_skb+0x130/0x360
[ 4187.851400][   T73]      netlink_unicast+0x449/0x710
[ 4187.851400][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4187.851400][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4187.851400][   T73]      ___sys_sendmsg+0xee/0x170
[ 4187.851400][   T73]      __sys_sendmsg+0xcd/0x170
[ 4187.851400][   T73]      do_syscall_64+0xc6/0x1e0
[ 4187.851400][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4187.851400][   T73] 
[ 4187.853086][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4187.853372][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4187.853372][   T73]      netdev_get_by_index+0x5e/0x80
[ 4187.853372][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4187.853372][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4187.853372][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4187.853372][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4187.853372][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4187.853372][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4187.853372][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4187.853372][   T73]      addrconf_dad_begin+0x310/0x670
[ 4187.853372][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4187.853372][   T73]      process_one_work+0x84d/0x18a0
[ 4187.853372][   T73]      worker_thread+0x587/0xd30
[ 4187.853372][   T73]      kthread+0x28a/0x350
[ 4187.853372][   T73]      ret_from_fork+0x31/0x70
[ 4187.853372][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4187.853372][   T73] 
[ 4187.855294][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4187.855294][   T73]      netdev_get_by_index+0x5e/0x80
[ 4187.855294][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4187.855294][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4187.855294][   T73]      ip6_route_add+0x1c/0x140
[ 4187.855294][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4187.855294][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4187.855294][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4187.855294][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4187.855294][   T73]      netlink_rcv_skb+0x130/0x360
[ 4187.855294][   T73]      netlink_unicast+0x449/0x710
[ 4187.855294][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4187.855294][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4187.855294][   T73]      ___sys_sendmsg+0xee/0x170
[ 4187.855294][   T73]      __sys_sendmsg+0xcd/0x170
[ 4187.855294][   T73]      do_syscall_64+0xc6/0x1e0
[ 4187.855294][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4187.855294][   T73] 
[ 4187.857281][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4187.857281][   T73]      netdev_get_by_index+0x5e/0x80
[ 4187.857281][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4187.857281][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4187.857281][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4187.857281][   T73]      ipv6_add_addr+0x411/0x2000
[ 4187.857281][   T73]      inet6_addr_add+0x30e/0xa40
[ 4187.857281][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4187.857281][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4187.857281][   T73]      netlink_rcv_skb+0x130/0x360
[ 4187.857281][   T73]      netlink_unicast+0x449/0x710
[ 4187.857281][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4187.857281][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4187.857281][   T73]      ___sys_sendmsg+0xee/0x170
[ 4187.857281][   T73]      __sys_sendmsg+0xcd/0x170
[ 4187.857281][   T73]      do_syscall_64+0xc6/0x1e0
[ 4187.857281][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4187.857281][   T73] 
[ 4187.859257][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4187.859257][   T73]      netdev_get_by_index+0x5e/0x80
[ 4187.859257][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4187.859257][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4187.859257][   T73]      ip6_route_add+0x1c/0x140
[ 4187.859257][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4187.859257][   T73]      addrconf_add_dev+0xe2/0x170
[ 4187.859257][   T73]      inet6_addr_add+0x12f/0xa40
[ 4187.859257][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4187.859257][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4187.859257][   T73]      netlink_rcv_skb+0x130/0x360
[ 4187.859257][   T73]      netlink_unicast+0x449/0x710
[ 4187.859257][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4187.859257][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4187.859257][   T73]      ___sys_sendmsg+0xee/0x170
[ 4187.859257][   T73]      __sys_sendmsg+0xcd/0x170
[ 4187.859257][   T73]      do_syscall_64+0xc6/0x1e0
[ 4187.859257][   T73] 
[ 4187.861232][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4187.861232][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4187.861232][   T73]      ipv6_find_idev+0x102/0x170
[ 4187.861232][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4187.861232][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4187.861232][   T73]      netlink_rcv_skb+0x130/0x360
[ 4187.861232][   T73]      netlink_unicast+0x449/0x710
[ 4187.861232][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4187.861232][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4187.861232][   T73]      ___sys_sendmsg+0xee/0x170
[ 4187.861232][   T73]      __sys_sendmsg+0xcd/0x170
[ 4187.861232][   T73]      do_syscall_64+0xc6/0x1e0
[ 4187.861232][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4187.861232][   T73] 
[ 4187.862771][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4187.862771][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4187.862771][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4187.862771][   T73]      ipv6_find_idev+0x102/0x170
[ 4187.862771][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4187.862771][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4187.862771][   T73]      netlink_rcv_skb+0x130/0x360
[ 4187.862771][   T73]      netlink_unicast+0x449/0x710
[ 4187.862771][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4187.862771][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4187.862771][   T73]      ___sys_sendmsg+0xee/0x170
[ 4187.862771][   T73]      __sys_sendmsg+0xcd/0x170
[ 4187.862771][   T73]      do_syscall_64+0xc6/0x1e0
[ 4187.862771][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4187.862771][   T73] 
[ 4187.864434][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4187.864744][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4187.864744][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4187.864744][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4187.864744][   T73]      fib6_nh_init+0xa22/0x1580
[ 4187.864744][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4187.864744][   T73]      ip6_route_add+0x1c/0x140
[ 4187.864744][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4187.864744][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4187.864744][   T73]      netlink_rcv_skb+0x130/0x360
[ 4187.864744][   T73]      netlink_unicast+0x449/0x710
[ 4187.864744][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4187.864744][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4187.864744][   T73]      ___sys_sendmsg+0xee/0x170
[ 4187.864744][   T73]      __sys_sendmsg+0xcd/0x170
[ 4187.864744][   T73]      do_syscall_64+0xc6/0x1e0
[ 4187.864744][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4187.864744][   T73] 
[ 4187.866823][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4187.866823][   T73]      dst_init+0x84/0x4a0
[ 4187.866823][   T73]      dst_alloc+0x97/0x150
[ 4187.866823][   T73]      ip6_dst_alloc+0x23/0x90
[ 4187.866823][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4187.866823][   T73]      ip6_pol_route+0x56f/0x840
[ 4187.866823][   T73]      fib6_rule_lookup+0x456/0x630
[ 4187.866823][   T73]      ip6_route_input+0x59c/0xa50
[ 4187.866823][   T73]      ipv6_rcv+0x397/0x810
[ 4187.866823][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4187.866823][   T73]      process_backlog+0x101/0x620
[ 4187.866823][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4187.866823][   T73]      net_rx_action+0x495/0xbe0
[ 4187.866823][   T73]      __do_softirq+0x1b5/0x7f6
[ 4187.866823][   T73] 
[ 4187.868720][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4187.868720][   T73]      netdev_get_by_index+0x5e/0x80
[ 4187.868720][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4187.868720][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4187.868720][   T73]      ip6_route_add+0x1c/0x140
[ 4187.868720][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4187.868720][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4187.868720][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4187.868720][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4187.868720][   T73]      netlink_rcv_skb+0x130/0x360
[ 4187.868720][   T73]      netlink_unicast+0x449/0x710
[ 4187.868720][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4187.868720][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4187.868720][   T73]      ___sys_sendmsg+0xee/0x170
[ 4187.868720][   T73]      __sys_sendmsg+0xcd/0x170
[ 4187.868720][   T73]      do_syscall_64+0xc6/0x1e0
[ 4187.868720][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4187.868720][   T73] 
[ 4187.870960][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4187.870960][   T73]      netdev_get_by_index+0x5e/0x80
[ 4187.870960][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4187.870960][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4187.870960][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4187.870960][   T73]      ipv6_add_addr+0x411/0x2000
[ 4187.870960][   T73]      inet6_addr_add+0x30e/0xa40
[ 4187.870960][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4187.870960][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4187.870960][   T73]      netlink_rcv_skb+0x130/0x360
[ 4187.870960][   T73]      netlink_unicast+0x449/0x710
[ 4187.870960][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4187.870960][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4187.870960][   T73]      ___sys_sendmsg+0xee/0x170
[ 4187.870960][   T73]      __sys_sendmsg+0xcd/0x170
[ 4187.870960][   T73]      do_syscall_64+0xc6/0x1e0
[ 4187.870960][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4187.870960][   T73] 
[ 4187.873198][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4187.873198][   T73]      netdev_get_by_index+0x5e/0x80
[ 4187.873198][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4187.873198][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4187.873198][   T73]      ip6_route_add+0x1c/0x140
[ 4187.873198][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4187.873198][   T73]      addrconf_add_dev+0xe2/0x170
[ 4187.873198][   T73]      inet6_addr_add+0x12f/0xa40
[ 4187.873198][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4187.873198][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4187.873198][   T73]      netlink_rcv_skb+0x130/0x360
[ 4187.873198][   T73]      netlink_unicast+0x449/0x710
[ 4187.873198][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4187.873198][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4187.873198][   T73]      ___sys_sendmsg+0xee/0x170
[ 4187.873198][   T73]      __sys_sendmsg+0xcd/0x170
[ 4187.873198][   T73]      do_syscall_64+0xc6/0x1e0
[ 4187.873198][   T73] 
[ 4187.875357][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4187.875357][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4187.875357][   T73]      ipv6_find_idev+0x102/0x170
[ 4187.875357][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4187.875357][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4187.875357][   T73]      netlink_rcv_skb+0x130/0x360
[ 4187.875357][   T73]      netlink_unicast+0x449/0x710
[ 4187.875357][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4187.875357][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4187.875357][   T73]      ___sys_sendmsg+0xee/0x170
[ 4187.875357][   T73]      __sys_sendmsg+0xcd/0x170
[ 4187.875357][   T73]      do_syscall_64+0xc6/0x1e0
[ 4187.875357][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4187.875357][   T73] 
[ 4187.877151][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4187.877151][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4187.877151][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4187.877151][   T73]      ipv6_find_idev+0x102/0x170
[ 4187.877151][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4187.877151][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4187.877151][   T73]      netlink_rcv_skb+0x130/0x360
[ 4187.877151][   T73]      netlink_unicast+0x449/0x710
[ 4187.877151][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4187.877151][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4187.877151][   T73]      ___sys_sendmsg+0xee/0x170
[ 4187.877151][   T73]      __sys_sendmsg+0xcd/0x170
[ 4187.877151][   T73]      do_syscall_64+0xc6/0x1e0
[ 4187.877151][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4187.877151][   T73] 
[ 4187.879052][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4187.879320][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4187.879320][   T73]      netdev_get_by_index+0x5e/0x80
[ 4187.879320][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4187.879320][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4187.879320][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4187.879320][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4187.879320][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4187.879320][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4187.879320][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4187.879320][   T73]      addrconf_dad_begin+0x310/0x670
[ 4187.879320][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4187.879320][   T73]      process_one_work+0x84d/0x18a0
[ 4187.879320][   T73]      worker_thread+0x587/0xd30
[ 4187.879320][   T73]      kthread+0x28a/0x350
[ 4187.879320][   T73]      ret_from_fork+0x31/0x70
[ 4187.879320][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4187.879320][   T73] 
[ 4187.881457][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4187.881457][   T73]      netdev_get_by_index+0x5e/0x80
[ 4187.881457][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4187.881457][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4187.881457][   T73]      ip6_route_add+0x1c/0x140
[ 4187.881457][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4187.881457][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4187.881457][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4187.881457][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4187.881457][   T73]      netlink_rcv_skb+0x130/0x360
[ 4187.881457][   T73]      netlink_unicast+0x449/0x710
[ 4187.881457][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4187.881457][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4187.881457][   T73]      ___sys_sendmsg+0xee/0x170
[ 4187.881457][   T73]      __sys_sendmsg+0xcd/0x170
[ 4187.881457][   T73]      do_syscall_64+0xc6/0x1e0
[ 4187.881457][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4187.881457][   T73] 
[ 4187.883606][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4187.883606][   T73]      netdev_get_by_index+0x5e/0x80
[ 4187.883606][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4187.883606][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4187.883606][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4187.883606][   T73]      ipv6_add_addr+0x411/0x2000
[ 4187.883606][   T73]      inet6_addr_add+0x30e/0xa40
[ 4187.883606][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4187.883606][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4187.883606][   T73]      netlink_rcv_skb+0x130/0x360
[ 4187.883606][   T73]      netlink_unicast+0x449/0x710
[ 4187.883606][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4187.883606][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4187.883606][   T73]      ___sys_sendmsg+0xee/0x170
[ 4187.883606][   T73]      __sys_sendmsg+0xcd/0x170
[ 4187.883606][   T73]      do_syscall_64+0xc6/0x1e0
[ 4187.883606][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4187.883606][   T73] 
[ 4187.885853][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4187.885853][   T73]      netdev_get_by_index+0x5e/0x80
[ 4187.885853][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4187.885853][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4187.885853][   T73]      ip6_route_add+0x1c/0x140
[ 4187.885853][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4187.885853][   T73]      addrconf_add_dev+0xe2/0x170
[ 4187.885853][   T73]      inet6_addr_add+0x12f/0xa40
[ 4187.885853][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4187.885853][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4187.885853][   T73]      netlink_rcv_skb+0x130/0x360
[ 4187.885853][   T73]      netlink_unicast+0x449/0x710
[ 4187.885853][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4187.885853][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4187.885853][   T73]      ___sys_sendmsg+0xee/0x170
[ 4187.885853][   T73]      __sys_sendmsg+0xcd/0x170
[ 4187.885853][   T73]      do_syscall_64+0xc6/0x1e0
[ 4187.885853][   T73] 
[ 4187.888105][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4187.888105][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4187.888105][   T73]      ipv6_find_idev+0x102/0x170
[ 4187.888105][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4187.888105][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4187.888105][   T73]      netlink_rcv_skb+0x130/0x360
[ 4187.888105][   T73]      netlink_unicast+0x449/0x710
[ 4187.888105][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4187.888105][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4187.888105][   T73]      ___sys_sendmsg+0xee/0x170
[ 4187.888105][   T73]      __sys_sendmsg+0xcd/0x170
[ 4187.888105][   T73]      do_syscall_64+0xc6/0x1e0
[ 4187.888105][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4187.888105][   T73] 
[ 4187.889810][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4187.889810][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4187.889810][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4187.889810][   T73]      ipv6_find_idev+0x102/0x170
[ 4187.889810][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4187.889810][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4187.889810][   T73]      netlink_rcv_skb+0x130/0x360
[ 4187.889810][   T73]      netlink_unicast+0x449/0x710
[ 4187.889810][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4187.889810][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4187.889810][   T73]      ___sys_sendmsg+0xee/0x170
[ 4187.889810][   T73]      __sys_sendmsg+0xcd/0x170
[ 4187.889810][   T73]      do_syscall_64+0xc6/0x1e0
[ 4187.889810][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4187.889810][   T73] 
[ 4198.007703][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4198.008204][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4198.008204][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4198.008204][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4198.008204][   T73]      fib6_nh_init+0xa22/0x1580
[ 4198.008204][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4198.008204][   T73]      ip6_route_add+0x1c/0x140
[ 4198.008204][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4198.008204][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4198.008204][   T73]      netlink_rcv_skb+0x130/0x360
[ 4198.008204][   T73]      netlink_unicast+0x449/0x710
[ 4198.008204][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4198.008204][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4198.008204][   T73]      ___sys_sendmsg+0xee/0x170
[ 4198.008204][   T73]      __sys_sendmsg+0xcd/0x170
[ 4198.008204][   T73]      do_syscall_64+0xc6/0x1e0
[ 4198.008204][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4198.008204][   T73] 
[ 4198.010155][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4198.010155][   T73]      dst_init+0x84/0x4a0
[ 4198.010155][   T73]      dst_alloc+0x97/0x150
[ 4198.010155][   T73]      ip6_dst_alloc+0x23/0x90
[ 4198.010155][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4198.010155][   T73]      ip6_pol_route+0x56f/0x840
[ 4198.010155][   T73]      fib6_rule_lookup+0x456/0x630
[ 4198.010155][   T73]      ip6_route_input+0x59c/0xa50
[ 4198.010155][   T73]      ipv6_rcv+0x397/0x810
[ 4198.010155][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4198.010155][   T73]      process_backlog+0x101/0x620
[ 4198.010155][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4198.010155][   T73]      net_rx_action+0x495/0xbe0
[ 4198.010155][   T73]      __do_softirq+0x1b5/0x7f6
[ 4198.010155][   T73] 
[ 4198.011829][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4198.011829][   T73]      netdev_get_by_index+0x5e/0x80
[ 4198.011829][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4198.011829][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4198.011829][   T73]      ip6_route_add+0x1c/0x140
[ 4198.011829][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4198.011829][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4198.011829][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4198.011829][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4198.011829][   T73]      netlink_rcv_skb+0x130/0x360
[ 4198.011829][   T73]      netlink_unicast+0x449/0x710
[ 4198.011829][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4198.011829][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4198.011829][   T73]      ___sys_sendmsg+0xee/0x170
[ 4198.011829][   T73]      __sys_sendmsg+0xcd/0x170
[ 4198.011829][   T73]      do_syscall_64+0xc6/0x1e0
[ 4198.011829][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4198.011829][   T73] 
[ 4198.013849][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4198.013849][   T73]      netdev_get_by_index+0x5e/0x80
[ 4198.013849][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4198.013849][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4198.013849][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4198.013849][   T73]      ipv6_add_addr+0x411/0x2000
[ 4198.013849][   T73]      inet6_addr_add+0x30e/0xa40
[ 4198.013849][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4198.013849][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4198.013849][   T73]      netlink_rcv_skb+0x130/0x360
[ 4198.013849][   T73]      netlink_unicast+0x449/0x710
[ 4198.013849][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4198.013849][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4198.013849][   T73]      ___sys_sendmsg+0xee/0x170
[ 4198.013849][   T73]      __sys_sendmsg+0xcd/0x170
[ 4198.013849][   T73]      do_syscall_64+0xc6/0x1e0
[ 4198.013849][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4198.013849][   T73] 
[ 4198.015886][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4198.015886][   T73]      netdev_get_by_index+0x5e/0x80
[ 4198.015886][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4198.015886][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4198.015886][   T73]      ip6_route_add+0x1c/0x140
[ 4198.015886][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4198.015886][   T73]      addrconf_add_dev+0xe2/0x170
[ 4198.015886][   T73]      inet6_addr_add+0x12f/0xa40
[ 4198.015886][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4198.015886][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4198.015886][   T73]      netlink_rcv_skb+0x130/0x360
[ 4198.015886][   T73]      netlink_unicast+0x449/0x710
[ 4198.015886][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4198.015886][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4198.015886][   T73]      ___sys_sendmsg+0xee/0x170
[ 4198.015886][   T73]      __sys_sendmsg+0xcd/0x170
[ 4198.015886][   T73]      do_syscall_64+0xc6/0x1e0
[ 4198.015886][   T73] 
[ 4198.017871][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4198.017871][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4198.017871][   T73]      ipv6_find_idev+0x102/0x170
[ 4198.017871][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4198.017871][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4198.017871][   T73]      netlink_rcv_skb+0x130/0x360
[ 4198.017871][   T73]      netlink_unicast+0x449/0x710
[ 4198.017871][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4198.017871][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4198.017871][   T73]      ___sys_sendmsg+0xee/0x170
[ 4198.017871][   T73]      __sys_sendmsg+0xcd/0x170
[ 4198.017871][   T73]      do_syscall_64+0xc6/0x1e0
[ 4198.017871][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4198.017871][   T73] 
[ 4198.019427][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4198.019427][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4198.019427][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4198.019427][   T73]      ipv6_find_idev+0x102/0x170
[ 4198.019427][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4198.019427][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4198.019427][   T73]      netlink_rcv_skb+0x130/0x360
[ 4198.019427][   T73]      netlink_unicast+0x449/0x710
[ 4198.019427][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4198.019427][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4198.019427][   T73]      ___sys_sendmsg+0xee/0x170
[ 4198.019427][   T73]      __sys_sendmsg+0xcd/0x170
[ 4198.019427][   T73]      do_syscall_64+0xc6/0x1e0
[ 4198.019427][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4198.019427][   T73] 
[ 4198.021159][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4198.021454][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4198.021454][   T73]      netdev_get_by_index+0x5e/0x80
[ 4198.021454][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4198.021454][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4198.021454][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4198.021454][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4198.021454][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4198.021454][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4198.021454][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4198.021454][   T73]      addrconf_dad_begin+0x310/0x670
[ 4198.021454][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4198.021454][   T73]      process_one_work+0x84d/0x18a0
[ 4198.021454][   T73]      worker_thread+0x587/0xd30
[ 4198.021454][   T73]      kthread+0x28a/0x350
[ 4198.021454][   T73]      ret_from_fork+0x31/0x70
[ 4198.021454][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4198.021454][   T73] 
[ 4198.023484][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4198.023484][   T73]      netdev_get_by_index+0x5e/0x80
[ 4198.023484][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4198.023484][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4198.023484][   T73]      ip6_route_add+0x1c/0x140
[ 4198.023484][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4198.023484][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4198.023484][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4198.023484][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4198.023484][   T73]      netlink_rcv_skb+0x130/0x360
[ 4198.023484][   T73]      netlink_unicast+0x449/0x710
[ 4198.023484][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4198.023484][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4198.023484][   T73]      ___sys_sendmsg+0xee/0x170
[ 4198.023484][   T73]      __sys_sendmsg+0xcd/0x170
[ 4198.023484][   T73]      do_syscall_64+0xc6/0x1e0
[ 4198.023484][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4198.023484][   T73] 
[ 4198.025519][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4198.025519][   T73]      netdev_get_by_index+0x5e/0x80
[ 4198.025519][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4198.025519][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4198.025519][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4198.025519][   T73]      ipv6_add_addr+0x411/0x2000
[ 4198.025519][   T73]      inet6_addr_add+0x30e/0xa40
[ 4198.025519][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4198.025519][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4198.025519][   T73]      netlink_rcv_skb+0x130/0x360
[ 4198.025519][   T73]      netlink_unicast+0x449/0x710
[ 4198.025519][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4198.025519][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4198.025519][   T73]      ___sys_sendmsg+0xee/0x170
[ 4198.025519][   T73]      __sys_sendmsg+0xcd/0x170
[ 4198.025519][   T73]      do_syscall_64+0xc6/0x1e0
[ 4198.025519][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4198.025519][   T73] 
[ 4198.027535][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4198.027535][   T73]      netdev_get_by_index+0x5e/0x80
[ 4198.027535][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4198.027535][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4198.027535][   T73]      ip6_route_add+0x1c/0x140
[ 4198.027535][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4198.027535][   T73]      addrconf_add_dev+0xe2/0x170
[ 4198.027535][   T73]      inet6_addr_add+0x12f/0xa40
[ 4198.027535][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4198.027535][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4198.027535][   T73]      netlink_rcv_skb+0x130/0x360
[ 4198.027535][   T73]      netlink_unicast+0x449/0x710
[ 4198.027535][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4198.027535][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4198.027535][   T73]      ___sys_sendmsg+0xee/0x170
[ 4198.027535][   T73]      __sys_sendmsg+0xcd/0x170
[ 4198.027535][   T73]      do_syscall_64+0xc6/0x1e0
[ 4198.027535][   T73] 
[ 4198.029511][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4198.029511][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4198.029511][   T73]      ipv6_find_idev+0x102/0x170
[ 4198.029511][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4198.029511][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4198.029511][   T73]      netlink_rcv_skb+0x130/0x360
[ 4198.029511][   T73]      netlink_unicast+0x449/0x710
[ 4198.029511][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4198.029511][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4198.029511][   T73]      ___sys_sendmsg+0xee/0x170
[ 4198.029511][   T73]      __sys_sendmsg+0xcd/0x170
[ 4198.029511][   T73]      do_syscall_64+0xc6/0x1e0
[ 4198.029511][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4198.029511][   T73] 
[ 4198.031060][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4198.031060][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4198.031060][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4198.031060][   T73]      ipv6_find_idev+0x102/0x170
[ 4198.031060][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4198.031060][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4198.031060][   T73]      netlink_rcv_skb+0x130/0x360
[ 4198.031060][   T73]      netlink_unicast+0x449/0x710
[ 4198.031060][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4198.031060][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4198.031060][   T73]      ___sys_sendmsg+0xee/0x170
[ 4198.031060][   T73]      __sys_sendmsg+0xcd/0x170
[ 4198.031060][   T73]      do_syscall_64+0xc6/0x1e0
[ 4198.031060][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4198.031060][   T73] 
[ 4198.032783][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4198.033074][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4198.033074][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4198.033074][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4198.033074][   T73]      fib6_nh_init+0xa22/0x1580
[ 4198.033074][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4198.033074][   T73]      ip6_route_add+0x1c/0x140
[ 4198.033074][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4198.033074][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4198.033074][   T73]      netlink_rcv_skb+0x130/0x360
[ 4198.033074][   T73]      netlink_unicast+0x449/0x710
[ 4198.033074][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4198.033074][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4198.033074][   T73]      ___sys_sendmsg+0xee/0x170
[ 4198.033074][   T73]      __sys_sendmsg+0xcd/0x170
[ 4198.033074][   T73]      do_syscall_64+0xc6/0x1e0
[ 4198.033074][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4198.033074][   T73] 
[ 4198.035164][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4198.035164][   T73]      dst_init+0x84/0x4a0
[ 4198.035164][   T73]      dst_alloc+0x97/0x150
[ 4198.035164][   T73]      ip6_dst_alloc+0x23/0x90
[ 4198.035164][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4198.035164][   T73]      ip6_pol_route+0x56f/0x840
[ 4198.035164][   T73]      fib6_rule_lookup+0x456/0x630
[ 4198.035164][   T73]      ip6_route_input+0x59c/0xa50
[ 4198.035164][   T73]      ipv6_rcv+0x397/0x810
[ 4198.035164][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4198.035164][   T73]      process_backlog+0x101/0x620
[ 4198.035164][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4198.035164][   T73]      net_rx_action+0x495/0xbe0
[ 4198.035164][   T73]      __do_softirq+0x1b5/0x7f6
[ 4198.035164][   T73] 
[ 4198.036994][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4198.036994][   T73]      netdev_get_by_index+0x5e/0x80
[ 4198.036994][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4198.036994][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4198.036994][   T73]      ip6_route_add+0x1c/0x140
[ 4198.036994][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4198.036994][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4198.036994][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4198.036994][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4198.036994][   T73]      netlink_rcv_skb+0x130/0x360
[ 4198.036994][   T73]      netlink_unicast+0x449/0x710
[ 4198.036994][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4198.036994][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4198.036994][   T73]      ___sys_sendmsg+0xee/0x170
[ 4198.036994][   T73]      __sys_sendmsg+0xcd/0x170
[ 4198.036994][   T73]      do_syscall_64+0xc6/0x1e0
[ 4198.036994][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4198.036994][   T73] 
[ 4198.039273][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4198.039273][   T73]      netdev_get_by_index+0x5e/0x80
[ 4198.039273][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4198.039273][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4198.039273][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4198.039273][   T73]      ipv6_add_addr+0x411/0x2000
[ 4198.039273][   T73]      inet6_addr_add+0x30e/0xa40
[ 4198.039273][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4198.039273][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4198.039273][   T73]      netlink_rcv_skb+0x130/0x360
[ 4198.039273][   T73]      netlink_unicast+0x449/0x710
[ 4198.039273][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4198.039273][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4198.039273][   T73]      ___sys_sendmsg+0xee/0x170
[ 4198.039273][   T73]      __sys_sendmsg+0xcd/0x170
[ 4198.039273][   T73]      do_syscall_64+0xc6/0x1e0
[ 4198.039273][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4198.039273][   T73] 
[ 4198.041614][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4198.041614][   T73]      netdev_get_by_index+0x5e/0x80
[ 4198.041614][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4198.041614][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4198.041614][   T73]      ip6_route_add+0x1c/0x140
[ 4198.041614][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4198.041614][   T73]      addrconf_add_dev+0xe2/0x170
[ 4198.041614][   T73]      inet6_addr_add+0x12f/0xa40
[ 4198.041614][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4198.041614][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4198.041614][   T73]      netlink_rcv_skb+0x130/0x360
[ 4198.041614][   T73]      netlink_unicast+0x449/0x710
[ 4198.041614][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4198.041614][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4198.041614][   T73]      ___sys_sendmsg+0xee/0x170
[ 4198.041614][   T73]      __sys_sendmsg+0xcd/0x170
[ 4198.041614][   T73]      do_syscall_64+0xc6/0x1e0
[ 4198.041614][   T73] 
[ 4198.043857][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4198.043857][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4198.043857][   T73]      ipv6_find_idev+0x102/0x170
[ 4198.043857][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4198.043857][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4198.043857][   T73]      netlink_rcv_skb+0x130/0x360
[ 4198.043857][   T73]      netlink_unicast+0x449/0x710
[ 4198.043857][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4198.043857][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4198.043857][   T73]      ___sys_sendmsg+0xee/0x170
[ 4198.043857][   T73]      __sys_sendmsg+0xcd/0x170
[ 4198.043857][   T73]      do_syscall_64+0xc6/0x1e0
[ 4198.043857][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4198.043857][   T73] 
[ 4198.045606][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4198.045606][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4198.045606][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4198.045606][   T73]      ipv6_find_idev+0x102/0x170
[ 4198.045606][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4198.045606][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4198.045606][   T73]      netlink_rcv_skb+0x130/0x360
[ 4198.045606][   T73]      netlink_unicast+0x449/0x710
[ 4198.045606][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4198.045606][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4198.045606][   T73]      ___sys_sendmsg+0xee/0x170
[ 4198.045606][   T73]      __sys_sendmsg+0xcd/0x170
[ 4198.045606][   T73]      do_syscall_64+0xc6/0x1e0
[ 4198.045606][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4198.045606][   T73] 
[ 4198.047500][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4198.048214][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4198.048214][   T73]      netdev_get_by_index+0x5e/0x80
[ 4198.048214][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4198.048214][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4198.048214][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4198.048214][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4198.048214][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4198.048214][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4198.048214][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4198.048214][   T73]      addrconf_dad_begin+0x310/0x670
[ 4198.048214][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4198.048214][   T73]      process_one_work+0x84d/0x18a0
[ 4198.048214][   T73]      worker_thread+0x587/0xd30
[ 4198.048214][   T73]      kthread+0x28a/0x350
[ 4198.048214][   T73]      ret_from_fork+0x31/0x70
[ 4198.048214][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4198.048214][   T73] 
[ 4198.050184][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4198.050184][   T73]      netdev_get_by_index+0x5e/0x80
[ 4198.050184][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4198.050184][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4198.050184][   T73]      ip6_route_add+0x1c/0x140
[ 4198.050184][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4198.050184][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4198.050184][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4198.050184][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4198.050184][   T73]      netlink_rcv_skb+0x130/0x360
[ 4198.050184][   T73]      netlink_unicast+0x449/0x710
[ 4198.050184][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4198.050184][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4198.050184][   T73]      ___sys_sendmsg+0xee/0x170
[ 4198.050184][   T73]      __sys_sendmsg+0xcd/0x170
[ 4198.050184][   T73]      do_syscall_64+0xc6/0x1e0
[ 4198.050184][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4198.050184][   T73] 
[ 4198.052343][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4198.052343][   T73]      netdev_get_by_index+0x5e/0x80
[ 4198.052343][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4198.052343][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4198.052343][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4198.052343][   T73]      ipv6_add_addr+0x411/0x2000
[ 4198.052343][   T73]      inet6_addr_add+0x30e/0xa40
[ 4198.052343][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4198.052343][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4198.052343][   T73]      netlink_rcv_skb+0x130/0x360
[ 4198.052343][   T73]      netlink_unicast+0x449/0x710
[ 4198.052343][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4198.052343][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4198.052343][   T73]      ___sys_sendmsg+0xee/0x170
[ 4198.052343][   T73]      __sys_sendmsg+0xcd/0x170
[ 4198.052343][   T73]      do_syscall_64+0xc6/0x1e0
[ 4198.052343][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4198.052343][   T73] 
[ 4198.054670][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4198.054670][   T73]      netdev_get_by_index+0x5e/0x80
[ 4198.054670][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4198.054670][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4198.054670][   T73]      ip6_route_add+0x1c/0x140
[ 4198.054670][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4198.054670][   T73]      addrconf_add_dev+0xe2/0x170
[ 4198.054670][   T73]      inet6_addr_add+0x12f/0xa40
[ 4198.054670][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4198.054670][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4198.054670][   T73]      netlink_rcv_skb+0x130/0x360
[ 4198.054670][   T73]      netlink_unicast+0x449/0x710
[ 4198.054670][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4198.054670][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4198.054670][   T73]      ___sys_sendmsg+0xee/0x170
[ 4198.054670][   T73]      __sys_sendmsg+0xcd/0x170
[ 4198.054670][   T73]      do_syscall_64+0xc6/0x1e0
[ 4198.054670][   T73] 
[ 4198.056863][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4198.056863][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4198.056863][   T73]      ipv6_find_idev+0x102/0x170
[ 4198.056863][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4198.056863][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4198.056863][   T73]      netlink_rcv_skb+0x130/0x360
[ 4198.056863][   T73]      netlink_unicast+0x449/0x710
[ 4198.056863][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4198.056863][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4198.056863][   T73]      ___sys_sendmsg+0xee/0x170
[ 4198.056863][   T73]      __sys_sendmsg+0xcd/0x170
[ 4198.056863][   T73]      do_syscall_64+0xc6/0x1e0
[ 4198.056863][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4198.056863][   T73] 
[ 4198.058613][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4198.058613][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4198.058613][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4198.058613][   T73]      ipv6_find_idev+0x102/0x170
[ 4198.058613][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4198.058613][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4198.058613][   T73]      netlink_rcv_skb+0x130/0x360
[ 4198.058613][   T73]      netlink_unicast+0x449/0x710
[ 4198.058613][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4198.058613][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4198.058613][   T73]      ___sys_sendmsg+0xee/0x170
[ 4198.058613][   T73]      __sys_sendmsg+0xcd/0x170
[ 4198.058613][   T73]      do_syscall_64+0xc6/0x1e0
[ 4198.058613][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4198.058613][   T73] 
[ 4208.335818][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4208.336314][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4208.336314][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4208.336314][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4208.336314][   T73]      fib6_nh_init+0xa22/0x1580
[ 4208.336314][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4208.336314][   T73]      ip6_route_add+0x1c/0x140
[ 4208.336314][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4208.336314][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4208.336314][   T73]      netlink_rcv_skb+0x130/0x360
[ 4208.336314][   T73]      netlink_unicast+0x449/0x710
[ 4208.336314][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4208.336314][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4208.336314][   T73]      ___sys_sendmsg+0xee/0x170
[ 4208.336314][   T73]      __sys_sendmsg+0xcd/0x170
[ 4208.336314][   T73]      do_syscall_64+0xc6/0x1e0
[ 4208.336314][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4208.336314][   T73] 
[ 4208.338233][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4208.338233][   T73]      dst_init+0x84/0x4a0
[ 4208.338233][   T73]      dst_alloc+0x97/0x150
[ 4208.338233][   T73]      ip6_dst_alloc+0x23/0x90
[ 4208.338233][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4208.338233][   T73]      ip6_pol_route+0x56f/0x840
[ 4208.338233][   T73]      fib6_rule_lookup+0x456/0x630
[ 4208.338233][   T73]      ip6_route_input+0x59c/0xa50
[ 4208.338233][   T73]      ipv6_rcv+0x397/0x810
[ 4208.338233][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4208.338233][   T73]      process_backlog+0x101/0x620
[ 4208.338233][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4208.338233][   T73]      net_rx_action+0x495/0xbe0
[ 4208.338233][   T73]      __do_softirq+0x1b5/0x7f6
[ 4208.338233][   T73] 
[ 4208.339880][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4208.339880][   T73]      netdev_get_by_index+0x5e/0x80
[ 4208.339880][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4208.339880][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4208.339880][   T73]      ip6_route_add+0x1c/0x140
[ 4208.339880][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4208.339880][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4208.339880][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4208.339880][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4208.339880][   T73]      netlink_rcv_skb+0x130/0x360
[ 4208.339880][   T73]      netlink_unicast+0x449/0x710
[ 4208.339880][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4208.339880][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4208.339880][   T73]      ___sys_sendmsg+0xee/0x170
[ 4208.339880][   T73]      __sys_sendmsg+0xcd/0x170
[ 4208.339880][   T73]      do_syscall_64+0xc6/0x1e0
[ 4208.339880][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4208.339880][   T73] 
[ 4208.341889][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4208.341889][   T73]      netdev_get_by_index+0x5e/0x80
[ 4208.341889][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4208.341889][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4208.341889][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4208.341889][   T73]      ipv6_add_addr+0x411/0x2000
[ 4208.341889][   T73]      inet6_addr_add+0x30e/0xa40
[ 4208.341889][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4208.341889][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4208.341889][   T73]      netlink_rcv_skb+0x130/0x360
[ 4208.341889][   T73]      netlink_unicast+0x449/0x710
[ 4208.341889][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4208.341889][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4208.341889][   T73]      ___sys_sendmsg+0xee/0x170
[ 4208.341889][   T73]      __sys_sendmsg+0xcd/0x170
[ 4208.341889][   T73]      do_syscall_64+0xc6/0x1e0
[ 4208.341889][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4208.341889][   T73] 
[ 4208.343931][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4208.343931][   T73]      netdev_get_by_index+0x5e/0x80
[ 4208.343931][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4208.343931][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4208.343931][   T73]      ip6_route_add+0x1c/0x140
[ 4208.343931][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4208.343931][   T73]      addrconf_add_dev+0xe2/0x170
[ 4208.343931][   T73]      inet6_addr_add+0x12f/0xa40
[ 4208.343931][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4208.343931][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4208.343931][   T73]      netlink_rcv_skb+0x130/0x360
[ 4208.343931][   T73]      netlink_unicast+0x449/0x710
[ 4208.343931][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4208.343931][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4208.343931][   T73]      ___sys_sendmsg+0xee/0x170
[ 4208.343931][   T73]      __sys_sendmsg+0xcd/0x170
[ 4208.343931][   T73]      do_syscall_64+0xc6/0x1e0
[ 4208.343931][   T73] 
[ 4208.345929][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4208.345929][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4208.345929][   T73]      ipv6_find_idev+0x102/0x170
[ 4208.345929][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4208.345929][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4208.345929][   T73]      netlink_rcv_skb+0x130/0x360
[ 4208.345929][   T73]      netlink_unicast+0x449/0x710
[ 4208.345929][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4208.345929][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4208.345929][   T73]      ___sys_sendmsg+0xee/0x170
[ 4208.345929][   T73]      __sys_sendmsg+0xcd/0x170
[ 4208.345929][   T73]      do_syscall_64+0xc6/0x1e0
[ 4208.345929][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4208.345929][   T73] 
[ 4208.347481][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4208.347481][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4208.347481][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4208.347481][   T73]      ipv6_find_idev+0x102/0x170
[ 4208.347481][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4208.347481][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4208.347481][   T73]      netlink_rcv_skb+0x130/0x360
[ 4208.347481][   T73]      netlink_unicast+0x449/0x710
[ 4208.347481][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4208.347481][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4208.347481][   T73]      ___sys_sendmsg+0xee/0x170
[ 4208.347481][   T73]      __sys_sendmsg+0xcd/0x170
[ 4208.347481][   T73]      do_syscall_64+0xc6/0x1e0
[ 4208.347481][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4208.347481][   T73] 
[ 4208.349206][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4208.349484][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4208.349484][   T73]      netdev_get_by_index+0x5e/0x80
[ 4208.349484][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4208.349484][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4208.349484][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4208.349484][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4208.349484][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4208.349484][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4208.349484][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4208.349484][   T73]      addrconf_dad_begin+0x310/0x670
[ 4208.349484][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4208.349484][   T73]      process_one_work+0x84d/0x18a0
[ 4208.349484][   T73]      worker_thread+0x587/0xd30
[ 4208.349484][   T73]      kthread+0x28a/0x350
[ 4208.349484][   T73]      ret_from_fork+0x31/0x70
[ 4208.349484][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4208.349484][   T73] 
[ 4208.351415][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4208.351415][   T73]      netdev_get_by_index+0x5e/0x80
[ 4208.351415][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4208.351415][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4208.351415][   T73]      ip6_route_add+0x1c/0x140
[ 4208.351415][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4208.351415][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4208.351415][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4208.351415][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4208.351415][   T73]      netlink_rcv_skb+0x130/0x360
[ 4208.351415][   T73]      netlink_unicast+0x449/0x710
[ 4208.351415][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4208.351415][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4208.351415][   T73]      ___sys_sendmsg+0xee/0x170
[ 4208.351415][   T73]      __sys_sendmsg+0xcd/0x170
[ 4208.351415][   T73]      do_syscall_64+0xc6/0x1e0
[ 4208.351415][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4208.351415][   T73] 
[ 4208.353416][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4208.353416][   T73]      netdev_get_by_index+0x5e/0x80
[ 4208.353416][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4208.353416][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4208.353416][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4208.353416][   T73]      ipv6_add_addr+0x411/0x2000
[ 4208.353416][   T73]      inet6_addr_add+0x30e/0xa40
[ 4208.353416][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4208.353416][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4208.353416][   T73]      netlink_rcv_skb+0x130/0x360
[ 4208.353416][   T73]      netlink_unicast+0x449/0x710
[ 4208.353416][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4208.353416][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4208.353416][   T73]      ___sys_sendmsg+0xee/0x170
[ 4208.353416][   T73]      __sys_sendmsg+0xcd/0x170
[ 4208.353416][   T73]      do_syscall_64+0xc6/0x1e0
[ 4208.353416][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4208.353416][   T73] 
[ 4208.355447][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4208.355447][   T73]      netdev_get_by_index+0x5e/0x80
[ 4208.355447][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4208.355447][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4208.355447][   T73]      ip6_route_add+0x1c/0x140
[ 4208.355447][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4208.355447][   T73]      addrconf_add_dev+0xe2/0x170
[ 4208.355447][   T73]      inet6_addr_add+0x12f/0xa40
[ 4208.355447][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4208.355447][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4208.355447][   T73]      netlink_rcv_skb+0x130/0x360
[ 4208.355447][   T73]      netlink_unicast+0x449/0x710
[ 4208.355447][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4208.355447][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4208.355447][   T73]      ___sys_sendmsg+0xee/0x170
[ 4208.355447][   T73]      __sys_sendmsg+0xcd/0x170
[ 4208.355447][   T73]      do_syscall_64+0xc6/0x1e0
[ 4208.355447][   T73] 
[ 4208.357423][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4208.357423][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4208.357423][   T73]      ipv6_find_idev+0x102/0x170
[ 4208.357423][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4208.357423][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4208.357423][   T73]      netlink_rcv_skb+0x130/0x360
[ 4208.357423][   T73]      netlink_unicast+0x449/0x710
[ 4208.357423][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4208.357423][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4208.357423][   T73]      ___sys_sendmsg+0xee/0x170
[ 4208.357423][   T73]      __sys_sendmsg+0xcd/0x170
[ 4208.357423][   T73]      do_syscall_64+0xc6/0x1e0
[ 4208.357423][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4208.357423][   T73] 
[ 4208.358976][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4208.358976][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4208.358976][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4208.358976][   T73]      ipv6_find_idev+0x102/0x170
[ 4208.358976][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4208.358976][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4208.358976][   T73]      netlink_rcv_skb+0x130/0x360
[ 4208.358976][   T73]      netlink_unicast+0x449/0x710
[ 4208.358976][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4208.358976][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4208.358976][   T73]      ___sys_sendmsg+0xee/0x170
[ 4208.358976][   T73]      __sys_sendmsg+0xcd/0x170
[ 4208.358976][   T73]      do_syscall_64+0xc6/0x1e0
[ 4208.358976][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4208.358976][   T73] 
[ 4208.360681][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4208.360959][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4208.360959][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4208.360959][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4208.360959][   T73]      fib6_nh_init+0xa22/0x1580
[ 4208.360959][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4208.360959][   T73]      ip6_route_add+0x1c/0x140
[ 4208.360959][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4208.360959][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4208.360959][   T73]      netlink_rcv_skb+0x130/0x360
[ 4208.360959][   T73]      netlink_unicast+0x449/0x710
[ 4208.360959][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4208.360959][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4208.360959][   T73]      ___sys_sendmsg+0xee/0x170
[ 4208.360959][   T73]      __sys_sendmsg+0xcd/0x170
[ 4208.360959][   T73]      do_syscall_64+0xc6/0x1e0
[ 4208.360959][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4208.360959][   T73] 
[ 4208.363036][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4208.363036][   T73]      dst_init+0x84/0x4a0
[ 4208.363036][   T73]      dst_alloc+0x97/0x150
[ 4208.363036][   T73]      ip6_dst_alloc+0x23/0x90
[ 4208.363036][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4208.363036][   T73]      ip6_pol_route+0x56f/0x840
[ 4208.363036][   T73]      fib6_rule_lookup+0x456/0x630
[ 4208.363036][   T73]      ip6_route_input+0x59c/0xa50
[ 4208.363036][   T73]      ipv6_rcv+0x397/0x810
[ 4208.363036][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4208.363036][   T73]      process_backlog+0x101/0x620
[ 4208.363036][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4208.363036][   T73]      net_rx_action+0x495/0xbe0
[ 4208.363036][   T73]      __do_softirq+0x1b5/0x7f6
[ 4208.363036][   T73] 
[ 4208.364926][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4208.364926][   T73]      netdev_get_by_index+0x5e/0x80
[ 4208.364926][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4208.364926][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4208.364926][   T73]      ip6_route_add+0x1c/0x140
[ 4208.364926][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4208.364926][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4208.364926][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4208.364926][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4208.364926][   T73]      netlink_rcv_skb+0x130/0x360
[ 4208.364926][   T73]      netlink_unicast+0x449/0x710
[ 4208.364926][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4208.364926][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4208.364926][   T73]      ___sys_sendmsg+0xee/0x170
[ 4208.364926][   T73]      __sys_sendmsg+0xcd/0x170
[ 4208.364926][   T73]      do_syscall_64+0xc6/0x1e0
[ 4208.364926][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4208.364926][   T73] 
[ 4208.367179][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4208.367179][   T73]      netdev_get_by_index+0x5e/0x80
[ 4208.367179][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4208.367179][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4208.367179][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4208.367179][   T73]      ipv6_add_addr+0x411/0x2000
[ 4208.367179][   T73]      inet6_addr_add+0x30e/0xa40
[ 4208.367179][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4208.367179][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4208.367179][   T73]      netlink_rcv_skb+0x130/0x360
[ 4208.367179][   T73]      netlink_unicast+0x449/0x710
[ 4208.367179][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4208.367179][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4208.367179][   T73]      ___sys_sendmsg+0xee/0x170
[ 4208.367179][   T73]      __sys_sendmsg+0xcd/0x170
[ 4208.367179][   T73]      do_syscall_64+0xc6/0x1e0
[ 4208.367179][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4208.367179][   T73] 
[ 4208.369435][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4208.369435][   T73]      netdev_get_by_index+0x5e/0x80
[ 4208.369435][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4208.369435][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4208.369435][   T73]      ip6_route_add+0x1c/0x140
[ 4208.369435][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4208.369435][   T73]      addrconf_add_dev+0xe2/0x170
[ 4208.369435][   T73]      inet6_addr_add+0x12f/0xa40
[ 4208.369435][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4208.369435][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4208.369435][   T73]      netlink_rcv_skb+0x130/0x360
[ 4208.369435][   T73]      netlink_unicast+0x449/0x710
[ 4208.369435][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4208.369435][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4208.369435][   T73]      ___sys_sendmsg+0xee/0x170
[ 4208.369435][   T73]      __sys_sendmsg+0xcd/0x170
[ 4208.369435][   T73]      do_syscall_64+0xc6/0x1e0
[ 4208.369435][   T73] 
[ 4208.371661][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4208.371661][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4208.371661][   T73]      ipv6_find_idev+0x102/0x170
[ 4208.371661][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4208.371661][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4208.371661][   T73]      netlink_rcv_skb+0x130/0x360
[ 4208.371661][   T73]      netlink_unicast+0x449/0x710
[ 4208.371661][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4208.371661][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4208.371661][   T73]      ___sys_sendmsg+0xee/0x170
[ 4208.371661][   T73]      __sys_sendmsg+0xcd/0x170
[ 4208.371661][   T73]      do_syscall_64+0xc6/0x1e0
[ 4208.371661][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4208.371661][   T73] 
[ 4208.373454][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4208.373454][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4208.373454][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4208.373454][   T73]      ipv6_find_idev+0x102/0x170
[ 4208.373454][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4208.373454][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4208.373454][   T73]      netlink_rcv_skb+0x130/0x360
[ 4208.373454][   T73]      netlink_unicast+0x449/0x710
[ 4208.373454][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4208.373454][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4208.373454][   T73]      ___sys_sendmsg+0xee/0x170
[ 4208.373454][   T73]      __sys_sendmsg+0xcd/0x170
[ 4208.373454][   T73]      do_syscall_64+0xc6/0x1e0
[ 4208.373454][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4208.373454][   T73] 
[ 4208.375355][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4208.375712][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4208.375712][   T73]      netdev_get_by_index+0x5e/0x80
[ 4208.375712][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4208.375712][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4208.375712][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4208.375712][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4208.375712][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4208.375712][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4208.375712][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4208.375712][   T73]      addrconf_dad_begin+0x310/0x670
[ 4208.375712][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4208.375712][   T73]      process_one_work+0x84d/0x18a0
[ 4208.375712][   T73]      worker_thread+0x587/0xd30
[ 4208.375712][   T73]      kthread+0x28a/0x350
[ 4208.375712][   T73]      ret_from_fork+0x31/0x70
[ 4208.375712][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4208.375712][   T73] 
[ 4208.377819][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4208.377819][   T73]      netdev_get_by_index+0x5e/0x80
[ 4208.377819][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4208.377819][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4208.377819][   T73]      ip6_route_add+0x1c/0x140
[ 4208.377819][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4208.377819][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4208.377819][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4208.377819][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4208.377819][   T73]      netlink_rcv_skb+0x130/0x360
[ 4208.377819][   T73]      netlink_unicast+0x449/0x710
[ 4208.377819][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4208.377819][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4208.377819][   T73]      ___sys_sendmsg+0xee/0x170
[ 4208.377819][   T73]      __sys_sendmsg+0xcd/0x170
[ 4208.377819][   T73]      do_syscall_64+0xc6/0x1e0
[ 4208.377819][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4208.377819][   T73] 
[ 4208.380083][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4208.380083][   T73]      netdev_get_by_index+0x5e/0x80
[ 4208.380083][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4208.380083][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4208.380083][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4208.380083][   T73]      ipv6_add_addr+0x411/0x2000
[ 4208.380083][   T73]      inet6_addr_add+0x30e/0xa40
[ 4208.380083][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4208.380083][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4208.380083][   T73]      netlink_rcv_skb+0x130/0x360
[ 4208.380083][   T73]      netlink_unicast+0x449/0x710
[ 4208.380083][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4208.380083][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4208.380083][   T73]      ___sys_sendmsg+0xee/0x170
[ 4208.380083][   T73]      __sys_sendmsg+0xcd/0x170
[ 4208.380083][   T73]      do_syscall_64+0xc6/0x1e0
[ 4208.380083][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4208.380083][   T73] 
[ 4208.382333][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4208.382333][   T73]      netdev_get_by_index+0x5e/0x80
[ 4208.382333][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4208.382333][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4208.382333][   T73]      ip6_route_add+0x1c/0x140
[ 4208.382333][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4208.382333][   T73]      addrconf_add_dev+0xe2/0x170
[ 4208.382333][   T73]      inet6_addr_add+0x12f/0xa40
[ 4208.382333][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4208.382333][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4208.382333][   T73]      netlink_rcv_skb+0x130/0x360
[ 4208.382333][   T73]      netlink_unicast+0x449/0x710
[ 4208.382333][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4208.382333][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4208.382333][   T73]      ___sys_sendmsg+0xee/0x170
[ 4208.382333][   T73]      __sys_sendmsg+0xcd/0x170
[ 4208.382333][   T73]      do_syscall_64+0xc6/0x1e0
[ 4208.382333][   T73] 
[ 4208.384652][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4208.384652][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4208.384652][   T73]      ipv6_find_idev+0x102/0x170
[ 4208.384652][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4208.384652][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4208.384652][   T73]      netlink_rcv_skb+0x130/0x360
[ 4208.384652][   T73]      netlink_unicast+0x449/0x710
[ 4208.384652][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4208.384652][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4208.384652][   T73]      ___sys_sendmsg+0xee/0x170
[ 4208.384652][   T73]      __sys_sendmsg+0xcd/0x170
[ 4208.384652][   T73]      do_syscall_64+0xc6/0x1e0
[ 4208.384652][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4208.384652][   T73] 
[ 4208.386406][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4208.386406][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4208.386406][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4208.386406][   T73]      ipv6_find_idev+0x102/0x170
[ 4208.386406][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4208.386406][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4208.386406][   T73]      netlink_rcv_skb+0x130/0x360
[ 4208.386406][   T73]      netlink_unicast+0x449/0x710
[ 4208.386406][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4208.386406][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4208.386406][   T73]      ___sys_sendmsg+0xee/0x170
[ 4208.386406][   T73]      __sys_sendmsg+0xcd/0x170
[ 4208.386406][   T73]      do_syscall_64+0xc6/0x1e0
[ 4208.386406][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4208.386406][   T73] 
[ 4218.583760][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4218.584242][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4218.584242][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4218.584242][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4218.584242][   T73]      fib6_nh_init+0xa22/0x1580
[ 4218.584242][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4218.584242][   T73]      ip6_route_add+0x1c/0x140
[ 4218.584242][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4218.584242][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4218.584242][   T73]      netlink_rcv_skb+0x130/0x360
[ 4218.584242][   T73]      netlink_unicast+0x449/0x710
[ 4218.584242][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4218.584242][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4218.584242][   T73]      ___sys_sendmsg+0xee/0x170
[ 4218.584242][   T73]      __sys_sendmsg+0xcd/0x170
[ 4218.584242][   T73]      do_syscall_64+0xc6/0x1e0
[ 4218.584242][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4218.584242][   T73] 
[ 4218.586185][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4218.586185][   T73]      dst_init+0x84/0x4a0
[ 4218.586185][   T73]      dst_alloc+0x97/0x150
[ 4218.586185][   T73]      ip6_dst_alloc+0x23/0x90
[ 4218.586185][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4218.586185][   T73]      ip6_pol_route+0x56f/0x840
[ 4218.586185][   T73]      fib6_rule_lookup+0x456/0x630
[ 4218.586185][   T73]      ip6_route_input+0x59c/0xa50
[ 4218.586185][   T73]      ipv6_rcv+0x397/0x810
[ 4218.586185][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4218.586185][   T73]      process_backlog+0x101/0x620
[ 4218.586185][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4218.586185][   T73]      net_rx_action+0x495/0xbe0
[ 4218.586185][   T73]      __do_softirq+0x1b5/0x7f6
[ 4218.586185][   T73] 
[ 4218.587842][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4218.587842][   T73]      netdev_get_by_index+0x5e/0x80
[ 4218.587842][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4218.587842][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4218.587842][   T73]      ip6_route_add+0x1c/0x140
[ 4218.587842][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4218.587842][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4218.587842][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4218.587842][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4218.587842][   T73]      netlink_rcv_skb+0x130/0x360
[ 4218.587842][   T73]      netlink_unicast+0x449/0x710
[ 4218.587842][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4218.587842][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4218.587842][   T73]      ___sys_sendmsg+0xee/0x170
[ 4218.587842][   T73]      __sys_sendmsg+0xcd/0x170
[ 4218.587842][   T73]      do_syscall_64+0xc6/0x1e0
[ 4218.587842][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4218.587842][   T73] 
[ 4218.589972][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4218.589972][   T73]      netdev_get_by_index+0x5e/0x80
[ 4218.589972][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4218.589972][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4218.589972][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4218.589972][   T73]      ipv6_add_addr+0x411/0x2000
[ 4218.589972][   T73]      inet6_addr_add+0x30e/0xa40
[ 4218.589972][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4218.589972][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4218.589972][   T73]      netlink_rcv_skb+0x130/0x360
[ 4218.589972][   T73]      netlink_unicast+0x449/0x710
[ 4218.589972][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4218.589972][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4218.589972][   T73]      ___sys_sendmsg+0xee/0x170
[ 4218.589972][   T73]      __sys_sendmsg+0xcd/0x170
[ 4218.589972][   T73]      do_syscall_64+0xc6/0x1e0
[ 4218.589972][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4218.589972][   T73] 
[ 4218.591979][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4218.591979][   T73]      netdev_get_by_index+0x5e/0x80
[ 4218.591979][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4218.591979][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4218.591979][   T73]      ip6_route_add+0x1c/0x140
[ 4218.591979][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4218.591979][   T73]      addrconf_add_dev+0xe2/0x170
[ 4218.591979][   T73]      inet6_addr_add+0x12f/0xa40
[ 4218.591979][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4218.591979][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4218.591979][   T73]      netlink_rcv_skb+0x130/0x360
[ 4218.591979][   T73]      netlink_unicast+0x449/0x710
[ 4218.591979][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4218.591979][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4218.591979][   T73]      ___sys_sendmsg+0xee/0x170
[ 4218.591979][   T73]      __sys_sendmsg+0xcd/0x170
[ 4218.591979][   T73]      do_syscall_64+0xc6/0x1e0
[ 4218.591979][   T73] 
[ 4218.593961][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4218.593961][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4218.593961][   T73]      ipv6_find_idev+0x102/0x170
[ 4218.593961][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4218.593961][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4218.593961][   T73]      netlink_rcv_skb+0x130/0x360
[ 4218.593961][   T73]      netlink_unicast+0x449/0x710
[ 4218.593961][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4218.593961][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4218.593961][   T73]      ___sys_sendmsg+0xee/0x170
[ 4218.593961][   T73]      __sys_sendmsg+0xcd/0x170
[ 4218.593961][   T73]      do_syscall_64+0xc6/0x1e0
[ 4218.593961][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4218.593961][   T73] 
[ 4218.595521][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4218.595521][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4218.595521][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4218.595521][   T73]      ipv6_find_idev+0x102/0x170
[ 4218.595521][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4218.595521][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4218.595521][   T73]      netlink_rcv_skb+0x130/0x360
[ 4218.595521][   T73]      netlink_unicast+0x449/0x710
[ 4218.595521][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4218.595521][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4218.595521][   T73]      ___sys_sendmsg+0xee/0x170
[ 4218.595521][   T73]      __sys_sendmsg+0xcd/0x170
[ 4218.595521][   T73]      do_syscall_64+0xc6/0x1e0
[ 4218.595521][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4218.595521][   T73] 
[ 4218.597214][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4218.597496][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4218.597496][   T73]      netdev_get_by_index+0x5e/0x80
[ 4218.597496][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4218.597496][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4218.597496][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4218.597496][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4218.597496][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4218.597496][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4218.597496][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4218.597496][   T73]      addrconf_dad_begin+0x310/0x670
[ 4218.597496][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4218.597496][   T73]      process_one_work+0x84d/0x18a0
[ 4218.597496][   T73]      worker_thread+0x587/0xd30
[ 4218.597496][   T73]      kthread+0x28a/0x350
[ 4218.597496][   T73]      ret_from_fork+0x31/0x70
[ 4218.597496][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4218.597496][   T73] 
[ 4218.599413][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4218.599413][   T73]      netdev_get_by_index+0x5e/0x80
[ 4218.599413][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4218.599413][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4218.599413][   T73]      ip6_route_add+0x1c/0x140
[ 4218.599413][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4218.599413][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4218.599413][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4218.599413][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4218.599413][   T73]      netlink_rcv_skb+0x130/0x360
[ 4218.599413][   T73]      netlink_unicast+0x449/0x710
[ 4218.599413][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4218.599413][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4218.599413][   T73]      ___sys_sendmsg+0xee/0x170
[ 4218.599413][   T73]      __sys_sendmsg+0xcd/0x170
[ 4218.599413][   T73]      do_syscall_64+0xc6/0x1e0
[ 4218.599413][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4218.599413][   T73] 
[ 4218.601416][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4218.601416][   T73]      netdev_get_by_index+0x5e/0x80
[ 4218.601416][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4218.601416][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4218.601416][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4218.601416][   T73]      ipv6_add_addr+0x411/0x2000
[ 4218.601416][   T73]      inet6_addr_add+0x30e/0xa40
[ 4218.601416][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4218.601416][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4218.601416][   T73]      netlink_rcv_skb+0x130/0x360
[ 4218.601416][   T73]      netlink_unicast+0x449/0x710
[ 4218.601416][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4218.601416][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4218.601416][   T73]      ___sys_sendmsg+0xee/0x170
[ 4218.601416][   T73]      __sys_sendmsg+0xcd/0x170
[ 4218.601416][   T73]      do_syscall_64+0xc6/0x1e0
[ 4218.601416][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4218.601416][   T73] 
[ 4218.603424][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4218.603424][   T73]      netdev_get_by_index+0x5e/0x80
[ 4218.603424][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4218.603424][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4218.603424][   T73]      ip6_route_add+0x1c/0x140
[ 4218.603424][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4218.603424][   T73]      addrconf_add_dev+0xe2/0x170
[ 4218.603424][   T73]      inet6_addr_add+0x12f/0xa40
[ 4218.603424][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4218.603424][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4218.603424][   T73]      netlink_rcv_skb+0x130/0x360
[ 4218.603424][   T73]      netlink_unicast+0x449/0x710
[ 4218.603424][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4218.603424][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4218.603424][   T73]      ___sys_sendmsg+0xee/0x170
[ 4218.603424][   T73]      __sys_sendmsg+0xcd/0x170
[ 4218.603424][   T73]      do_syscall_64+0xc6/0x1e0
[ 4218.603424][   T73] 
[ 4218.605404][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4218.605404][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4218.605404][   T73]      ipv6_find_idev+0x102/0x170
[ 4218.605404][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4218.605404][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4218.605404][   T73]      netlink_rcv_skb+0x130/0x360
[ 4218.605404][   T73]      netlink_unicast+0x449/0x710
[ 4218.605404][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4218.605404][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4218.605404][   T73]      ___sys_sendmsg+0xee/0x170
[ 4218.605404][   T73]      __sys_sendmsg+0xcd/0x170
[ 4218.605404][   T73]      do_syscall_64+0xc6/0x1e0
[ 4218.605404][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4218.605404][   T73] 
[ 4218.606957][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4218.606957][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4218.606957][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4218.606957][   T73]      ipv6_find_idev+0x102/0x170
[ 4218.606957][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4218.606957][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4218.606957][   T73]      netlink_rcv_skb+0x130/0x360
[ 4218.606957][   T73]      netlink_unicast+0x449/0x710
[ 4218.606957][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4218.606957][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4218.606957][   T73]      ___sys_sendmsg+0xee/0x170
[ 4218.606957][   T73]      __sys_sendmsg+0xcd/0x170
[ 4218.606957][   T73]      do_syscall_64+0xc6/0x1e0
[ 4218.606957][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4218.606957][   T73] 
[ 4218.608664][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4218.608930][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4218.608930][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4218.608930][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4218.608930][   T73]      fib6_nh_init+0xa22/0x1580
[ 4218.608930][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4218.608930][   T73]      ip6_route_add+0x1c/0x140
[ 4218.608930][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4218.608930][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4218.608930][   T73]      netlink_rcv_skb+0x130/0x360
[ 4218.608930][   T73]      netlink_unicast+0x449/0x710
[ 4218.608930][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4218.608930][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4218.608930][   T73]      ___sys_sendmsg+0xee/0x170
[ 4218.608930][   T73]      __sys_sendmsg+0xcd/0x170
[ 4218.608930][   T73]      do_syscall_64+0xc6/0x1e0
[ 4218.608930][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4218.608930][   T73] 
[ 4218.611021][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4218.611021][   T73]      dst_init+0x84/0x4a0
[ 4218.611021][   T73]      dst_alloc+0x97/0x150
[ 4218.611021][   T73]      ip6_dst_alloc+0x23/0x90
[ 4218.611021][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4218.611021][   T73]      ip6_pol_route+0x56f/0x840
[ 4218.611021][   T73]      fib6_rule_lookup+0x456/0x630
[ 4218.611021][   T73]      ip6_route_input+0x59c/0xa50
[ 4218.611021][   T73]      ipv6_rcv+0x397/0x810
[ 4218.611021][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4218.611021][   T73]      process_backlog+0x101/0x620
[ 4218.611021][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4218.611021][   T73]      net_rx_action+0x495/0xbe0
[ 4218.611021][   T73]      __do_softirq+0x1b5/0x7f6
[ 4218.611021][   T73] 
[ 4218.612860][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4218.612860][   T73]      netdev_get_by_index+0x5e/0x80
[ 4218.612860][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4218.612860][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4218.612860][   T73]      ip6_route_add+0x1c/0x140
[ 4218.612860][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4218.612860][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4218.612860][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4218.612860][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4218.612860][   T73]      netlink_rcv_skb+0x130/0x360
[ 4218.612860][   T73]      netlink_unicast+0x449/0x710
[ 4218.612860][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4218.612860][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4218.612860][   T73]      ___sys_sendmsg+0xee/0x170
[ 4218.612860][   T73]      __sys_sendmsg+0xcd/0x170
[ 4218.612860][   T73]      do_syscall_64+0xc6/0x1e0
[ 4218.612860][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4218.612860][   T73] 
[ 4218.615118][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4218.615118][   T73]      netdev_get_by_index+0x5e/0x80
[ 4218.615118][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4218.615118][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4218.615118][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4218.615118][   T73]      ipv6_add_addr+0x411/0x2000
[ 4218.615118][   T73]      inet6_addr_add+0x30e/0xa40
[ 4218.615118][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4218.615118][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4218.615118][   T73]      netlink_rcv_skb+0x130/0x360
[ 4218.615118][   T73]      netlink_unicast+0x449/0x710
[ 4218.615118][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4218.615118][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4218.615118][   T73]      ___sys_sendmsg+0xee/0x170
[ 4218.615118][   T73]      __sys_sendmsg+0xcd/0x170
[ 4218.615118][   T73]      do_syscall_64+0xc6/0x1e0
[ 4218.615118][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4218.615118][   T73] 
[ 4218.617381][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4218.617381][   T73]      netdev_get_by_index+0x5e/0x80
[ 4218.617381][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4218.617381][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4218.617381][   T73]      ip6_route_add+0x1c/0x140
[ 4218.617381][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4218.617381][   T73]      addrconf_add_dev+0xe2/0x170
[ 4218.617381][   T73]      inet6_addr_add+0x12f/0xa40
[ 4218.617381][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4218.617381][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4218.617381][   T73]      netlink_rcv_skb+0x130/0x360
[ 4218.617381][   T73]      netlink_unicast+0x449/0x710
[ 4218.617381][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4218.617381][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4218.617381][   T73]      ___sys_sendmsg+0xee/0x170
[ 4218.617381][   T73]      __sys_sendmsg+0xcd/0x170
[ 4218.617381][   T73]      do_syscall_64+0xc6/0x1e0
[ 4218.617381][   T73] 
[ 4218.619539][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4218.619539][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4218.619539][   T73]      ipv6_find_idev+0x102/0x170
[ 4218.619539][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4218.619539][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4218.619539][   T73]      netlink_rcv_skb+0x130/0x360
[ 4218.619539][   T73]      netlink_unicast+0x449/0x710
[ 4218.619539][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4218.619539][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4218.619539][   T73]      ___sys_sendmsg+0xee/0x170
[ 4218.619539][   T73]      __sys_sendmsg+0xcd/0x170
[ 4218.619539][   T73]      do_syscall_64+0xc6/0x1e0
[ 4218.619539][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4218.619539][   T73] 
[ 4218.621279][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4218.621279][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4218.621279][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4218.621279][   T73]      ipv6_find_idev+0x102/0x170
[ 4218.621279][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4218.621279][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4218.621279][   T73]      netlink_rcv_skb+0x130/0x360
[ 4218.621279][   T73]      netlink_unicast+0x449/0x710
[ 4218.621279][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4218.621279][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4218.621279][   T73]      ___sys_sendmsg+0xee/0x170
[ 4218.621279][   T73]      __sys_sendmsg+0xcd/0x170
[ 4218.621279][   T73]      do_syscall_64+0xc6/0x1e0
[ 4218.621279][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4218.621279][   T73] 
[ 4218.623152][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4218.623499][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4218.623499][   T73]      netdev_get_by_index+0x5e/0x80
[ 4218.623499][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4218.623499][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4218.623499][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4218.623499][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4218.623499][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4218.623499][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4218.623499][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4218.623499][   T73]      addrconf_dad_begin+0x310/0x670
[ 4218.623499][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4218.623499][   T73]      process_one_work+0x84d/0x18a0
[ 4218.623499][   T73]      worker_thread+0x587/0xd30
[ 4218.623499][   T73]      kthread+0x28a/0x350
[ 4218.623499][   T73]      ret_from_fork+0x31/0x70
[ 4218.623499][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4218.623499][   T73] 
[ 4218.625603][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4218.625603][   T73]      netdev_get_by_index+0x5e/0x80
[ 4218.625603][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4218.625603][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4218.625603][   T73]      ip6_route_add+0x1c/0x140
[ 4218.625603][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4218.625603][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4218.625603][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4218.625603][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4218.625603][   T73]      netlink_rcv_skb+0x130/0x360
[ 4218.625603][   T73]      netlink_unicast+0x449/0x710
[ 4218.625603][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4218.625603][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4218.625603][   T73]      ___sys_sendmsg+0xee/0x170
[ 4218.625603][   T73]      __sys_sendmsg+0xcd/0x170
[ 4218.625603][   T73]      do_syscall_64+0xc6/0x1e0
[ 4218.625603][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4218.625603][   T73] 
[ 4218.627901][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4218.627901][   T73]      netdev_get_by_index+0x5e/0x80
[ 4218.627901][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4218.627901][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4218.627901][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4218.627901][   T73]      ipv6_add_addr+0x411/0x2000
[ 4218.627901][   T73]      inet6_addr_add+0x30e/0xa40
[ 4218.627901][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4218.627901][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4218.627901][   T73]      netlink_rcv_skb+0x130/0x360
[ 4218.627901][   T73]      netlink_unicast+0x449/0x710
[ 4218.627901][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4218.627901][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4218.627901][   T73]      ___sys_sendmsg+0xee/0x170
[ 4218.627901][   T73]      __sys_sendmsg+0xcd/0x170
[ 4218.627901][   T73]      do_syscall_64+0xc6/0x1e0
[ 4218.627901][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4218.627901][   T73] 
[ 4218.630127][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4218.630127][   T73]      netdev_get_by_index+0x5e/0x80
[ 4218.630127][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4218.630127][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4218.630127][   T73]      ip6_route_add+0x1c/0x140
[ 4218.630127][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4218.630127][   T73]      addrconf_add_dev+0xe2/0x170
[ 4218.630127][   T73]      inet6_addr_add+0x12f/0xa40
[ 4218.630127][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4218.630127][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4218.630127][   T73]      netlink_rcv_skb+0x130/0x360
[ 4218.630127][   T73]      netlink_unicast+0x449/0x710
[ 4218.630127][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4218.630127][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4218.630127][   T73]      ___sys_sendmsg+0xee/0x170
[ 4218.630127][   T73]      __sys_sendmsg+0xcd/0x170
[ 4218.630127][   T73]      do_syscall_64+0xc6/0x1e0
[ 4218.630127][   T73] 
[ 4218.632324][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4218.632324][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4218.632324][   T73]      ipv6_find_idev+0x102/0x170
[ 4218.632324][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4218.632324][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4218.632324][   T73]      netlink_rcv_skb+0x130/0x360
[ 4218.632324][   T73]      netlink_unicast+0x449/0x710
[ 4218.632324][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4218.632324][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4218.632324][   T73]      ___sys_sendmsg+0xee/0x170
[ 4218.632324][   T73]      __sys_sendmsg+0xcd/0x170
[ 4218.632324][   T73]      do_syscall_64+0xc6/0x1e0
[ 4218.632324][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4218.632324][   T73] 
[ 4218.634052][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4218.634052][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4218.634052][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4218.634052][   T73]      ipv6_find_idev+0x102/0x170
[ 4218.634052][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4218.634052][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4218.634052][   T73]      netlink_rcv_skb+0x130/0x360
[ 4218.634052][   T73]      netlink_unicast+0x449/0x710
[ 4218.634052][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4218.634052][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4218.634052][   T73]      ___sys_sendmsg+0xee/0x170
[ 4218.634052][   T73]      __sys_sendmsg+0xcd/0x170
[ 4218.634052][   T73]      do_syscall_64+0xc6/0x1e0
[ 4218.634052][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4218.634052][   T73] 
[ 4228.871706][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4228.872233][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4228.872233][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4228.872233][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4228.872233][   T73]      fib6_nh_init+0xa22/0x1580
[ 4228.872233][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4228.872233][   T73]      ip6_route_add+0x1c/0x140
[ 4228.872233][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4228.872233][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4228.872233][   T73]      netlink_rcv_skb+0x130/0x360
[ 4228.872233][   T73]      netlink_unicast+0x449/0x710
[ 4228.872233][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4228.872233][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4228.872233][   T73]      ___sys_sendmsg+0xee/0x170
[ 4228.872233][   T73]      __sys_sendmsg+0xcd/0x170
[ 4228.872233][   T73]      do_syscall_64+0xc6/0x1e0
[ 4228.872233][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4228.872233][   T73] 
[ 4228.874129][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4228.874129][   T73]      dst_init+0x84/0x4a0
[ 4228.874129][   T73]      dst_alloc+0x97/0x150
[ 4228.874129][   T73]      ip6_dst_alloc+0x23/0x90
[ 4228.874129][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4228.874129][   T73]      ip6_pol_route+0x56f/0x840
[ 4228.874129][   T73]      fib6_rule_lookup+0x456/0x630
[ 4228.874129][   T73]      ip6_route_input+0x59c/0xa50
[ 4228.874129][   T73]      ipv6_rcv+0x397/0x810
[ 4228.874129][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4228.874129][   T73]      process_backlog+0x101/0x620
[ 4228.874129][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4228.874129][   T73]      net_rx_action+0x495/0xbe0
[ 4228.874129][   T73]      __do_softirq+0x1b5/0x7f6
[ 4228.874129][   T73] 
[ 4228.875773][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4228.875773][   T73]      netdev_get_by_index+0x5e/0x80
[ 4228.875773][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4228.875773][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4228.875773][   T73]      ip6_route_add+0x1c/0x140
[ 4228.875773][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4228.875773][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4228.875773][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4228.875773][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4228.875773][   T73]      netlink_rcv_skb+0x130/0x360
[ 4228.875773][   T73]      netlink_unicast+0x449/0x710
[ 4228.875773][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4228.875773][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4228.875773][   T73]      ___sys_sendmsg+0xee/0x170
[ 4228.875773][   T73]      __sys_sendmsg+0xcd/0x170
[ 4228.875773][   T73]      do_syscall_64+0xc6/0x1e0
[ 4228.875773][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4228.875773][   T73] 
[ 4228.877787][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4228.877787][   T73]      netdev_get_by_index+0x5e/0x80
[ 4228.877787][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4228.877787][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4228.877787][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4228.877787][   T73]      ipv6_add_addr+0x411/0x2000
[ 4228.877787][   T73]      inet6_addr_add+0x30e/0xa40
[ 4228.877787][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4228.877787][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4228.877787][   T73]      netlink_rcv_skb+0x130/0x360
[ 4228.877787][   T73]      netlink_unicast+0x449/0x710
[ 4228.877787][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4228.877787][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4228.877787][   T73]      ___sys_sendmsg+0xee/0x170
[ 4228.877787][   T73]      __sys_sendmsg+0xcd/0x170
[ 4228.877787][   T73]      do_syscall_64+0xc6/0x1e0
[ 4228.877787][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4228.877787][   T73] 
[ 4228.879779][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4228.879779][   T73]      netdev_get_by_index+0x5e/0x80
[ 4228.879779][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4228.879779][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4228.879779][   T73]      ip6_route_add+0x1c/0x140
[ 4228.879779][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4228.879779][   T73]      addrconf_add_dev+0xe2/0x170
[ 4228.879779][   T73]      inet6_addr_add+0x12f/0xa40
[ 4228.879779][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4228.879779][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4228.879779][   T73]      netlink_rcv_skb+0x130/0x360
[ 4228.879779][   T73]      netlink_unicast+0x449/0x710
[ 4228.879779][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4228.879779][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4228.879779][   T73]      ___sys_sendmsg+0xee/0x170
[ 4228.879779][   T73]      __sys_sendmsg+0xcd/0x170
[ 4228.879779][   T73]      do_syscall_64+0xc6/0x1e0
[ 4228.879779][   T73] 
[ 4228.881737][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4228.881737][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4228.881737][   T73]      ipv6_find_idev+0x102/0x170
[ 4228.881737][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4228.881737][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4228.881737][   T73]      netlink_rcv_skb+0x130/0x360
[ 4228.881737][   T73]      netlink_unicast+0x449/0x710
[ 4228.881737][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4228.881737][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4228.881737][   T73]      ___sys_sendmsg+0xee/0x170
[ 4228.881737][   T73]      __sys_sendmsg+0xcd/0x170
[ 4228.881737][   T73]      do_syscall_64+0xc6/0x1e0
[ 4228.881737][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4228.881737][   T73] 
[ 4228.883282][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4228.883282][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4228.883282][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4228.883282][   T73]      ipv6_find_idev+0x102/0x170
[ 4228.883282][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4228.883282][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4228.883282][   T73]      netlink_rcv_skb+0x130/0x360
[ 4228.883282][   T73]      netlink_unicast+0x449/0x710
[ 4228.883282][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4228.883282][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4228.883282][   T73]      ___sys_sendmsg+0xee/0x170
[ 4228.883282][   T73]      __sys_sendmsg+0xcd/0x170
[ 4228.883282][   T73]      do_syscall_64+0xc6/0x1e0
[ 4228.883282][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4228.883282][   T73] 
[ 4228.884985][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4228.885262][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4228.885262][   T73]      netdev_get_by_index+0x5e/0x80
[ 4228.885262][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4228.885262][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4228.885262][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4228.885262][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4228.885262][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4228.885262][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4228.885262][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4228.885262][   T73]      addrconf_dad_begin+0x310/0x670
[ 4228.885262][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4228.885262][   T73]      process_one_work+0x84d/0x18a0
[ 4228.885262][   T73]      worker_thread+0x587/0xd30
[ 4228.885262][   T73]      kthread+0x28a/0x350
[ 4228.885262][   T73]      ret_from_fork+0x31/0x70
[ 4228.885262][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4228.885262][   T73] 
[ 4228.887174][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4228.887174][   T73]      netdev_get_by_index+0x5e/0x80
[ 4228.887174][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4228.887174][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4228.887174][   T73]      ip6_route_add+0x1c/0x140
[ 4228.887174][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4228.887174][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4228.887174][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4228.887174][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4228.887174][   T73]      netlink_rcv_skb+0x130/0x360
[ 4228.887174][   T73]      netlink_unicast+0x449/0x710
[ 4228.887174][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4228.887174][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4228.887174][   T73]      ___sys_sendmsg+0xee/0x170
[ 4228.887174][   T73]      __sys_sendmsg+0xcd/0x170
[ 4228.887174][   T73]      do_syscall_64+0xc6/0x1e0
[ 4228.887174][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4228.887174][   T73] 
[ 4228.889275][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4228.889275][   T73]      netdev_get_by_index+0x5e/0x80
[ 4228.889275][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4228.889275][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4228.889275][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4228.889275][   T73]      ipv6_add_addr+0x411/0x2000
[ 4228.889275][   T73]      inet6_addr_add+0x30e/0xa40
[ 4228.889275][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4228.889275][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4228.889275][   T73]      netlink_rcv_skb+0x130/0x360
[ 4228.889275][   T73]      netlink_unicast+0x449/0x710
[ 4228.889275][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4228.889275][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4228.889275][   T73]      ___sys_sendmsg+0xee/0x170
[ 4228.889275][   T73]      __sys_sendmsg+0xcd/0x170
[ 4228.889275][   T73]      do_syscall_64+0xc6/0x1e0
[ 4228.889275][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4228.889275][   T73] 
[ 4228.891269][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4228.891269][   T73]      netdev_get_by_index+0x5e/0x80
[ 4228.891269][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4228.891269][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4228.891269][   T73]      ip6_route_add+0x1c/0x140
[ 4228.891269][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4228.891269][   T73]      addrconf_add_dev+0xe2/0x170
[ 4228.891269][   T73]      inet6_addr_add+0x12f/0xa40
[ 4228.891269][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4228.891269][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4228.891269][   T73]      netlink_rcv_skb+0x130/0x360
[ 4228.891269][   T73]      netlink_unicast+0x449/0x710
[ 4228.891269][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4228.891269][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4228.891269][   T73]      ___sys_sendmsg+0xee/0x170
[ 4228.891269][   T73]      __sys_sendmsg+0xcd/0x170
[ 4228.891269][   T73]      do_syscall_64+0xc6/0x1e0
[ 4228.891269][   T73] 
[ 4228.893234][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4228.893234][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4228.893234][   T73]      ipv6_find_idev+0x102/0x170
[ 4228.893234][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4228.893234][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4228.893234][   T73]      netlink_rcv_skb+0x130/0x360
[ 4228.893234][   T73]      netlink_unicast+0x449/0x710
[ 4228.893234][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4228.893234][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4228.893234][   T73]      ___sys_sendmsg+0xee/0x170
[ 4228.893234][   T73]      __sys_sendmsg+0xcd/0x170
[ 4228.893234][   T73]      do_syscall_64+0xc6/0x1e0
[ 4228.893234][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4228.893234][   T73] 
[ 4228.894769][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4228.894769][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4228.894769][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4228.894769][   T73]      ipv6_find_idev+0x102/0x170
[ 4228.894769][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4228.894769][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4228.894769][   T73]      netlink_rcv_skb+0x130/0x360
[ 4228.894769][   T73]      netlink_unicast+0x449/0x710
[ 4228.894769][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4228.894769][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4228.894769][   T73]      ___sys_sendmsg+0xee/0x170
[ 4228.894769][   T73]      __sys_sendmsg+0xcd/0x170
[ 4228.894769][   T73]      do_syscall_64+0xc6/0x1e0
[ 4228.894769][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4228.894769][   T73] 
[ 4228.896454][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4228.896731][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4228.896731][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4228.896731][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4228.896731][   T73]      fib6_nh_init+0xa22/0x1580
[ 4228.896731][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4228.896731][   T73]      ip6_route_add+0x1c/0x140
[ 4228.896731][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4228.896731][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4228.896731][   T73]      netlink_rcv_skb+0x130/0x360
[ 4228.896731][   T73]      netlink_unicast+0x449/0x710
[ 4228.896731][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4228.896731][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4228.896731][   T73]      ___sys_sendmsg+0xee/0x170
[ 4228.896731][   T73]      __sys_sendmsg+0xcd/0x170
[ 4228.896731][   T73]      do_syscall_64+0xc6/0x1e0
[ 4228.896731][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4228.896731][   T73] 
[ 4228.898791][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4228.898791][   T73]      dst_init+0x84/0x4a0
[ 4228.898791][   T73]      dst_alloc+0x97/0x150
[ 4228.898791][   T73]      ip6_dst_alloc+0x23/0x90
[ 4228.898791][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4228.898791][   T73]      ip6_pol_route+0x56f/0x840
[ 4228.898791][   T73]      fib6_rule_lookup+0x456/0x630
[ 4228.898791][   T73]      ip6_route_input+0x59c/0xa50
[ 4228.898791][   T73]      ipv6_rcv+0x397/0x810
[ 4228.898791][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4228.898791][   T73]      process_backlog+0x101/0x620
[ 4228.898791][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4228.898791][   T73]      net_rx_action+0x495/0xbe0
[ 4228.898791][   T73]      __do_softirq+0x1b5/0x7f6
[ 4228.898791][   T73] 
[ 4228.900663][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4228.900663][   T73]      netdev_get_by_index+0x5e/0x80
[ 4228.900663][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4228.900663][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4228.900663][   T73]      ip6_route_add+0x1c/0x140
[ 4228.900663][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4228.900663][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4228.900663][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4228.900663][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4228.900663][   T73]      netlink_rcv_skb+0x130/0x360
[ 4228.900663][   T73]      netlink_unicast+0x449/0x710
[ 4228.900663][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4228.900663][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4228.900663][   T73]      ___sys_sendmsg+0xee/0x170
[ 4228.900663][   T73]      __sys_sendmsg+0xcd/0x170
[ 4228.900663][   T73]      do_syscall_64+0xc6/0x1e0
[ 4228.900663][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4228.900663][   T73] 
[ 4228.903423][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4228.903423][   T73]      netdev_get_by_index+0x5e/0x80
[ 4228.903423][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4228.903423][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4228.903423][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4228.903423][   T73]      ipv6_add_addr+0x411/0x2000
[ 4228.903423][   T73]      inet6_addr_add+0x30e/0xa40
[ 4228.903423][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4228.903423][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4228.903423][   T73]      netlink_rcv_skb+0x130/0x360
[ 4228.903423][   T73]      netlink_unicast+0x449/0x710
[ 4228.903423][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4228.903423][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4228.903423][   T73]      ___sys_sendmsg+0xee/0x170
[ 4228.903423][   T73]      __sys_sendmsg+0xcd/0x170
[ 4228.903423][   T73]      do_syscall_64+0xc6/0x1e0
[ 4228.903423][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4228.903423][   T73] 
[ 4228.905601][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4228.905601][   T73]      netdev_get_by_index+0x5e/0x80
[ 4228.905601][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4228.905601][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4228.905601][   T73]      ip6_route_add+0x1c/0x140
[ 4228.905601][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4228.905601][   T73]      addrconf_add_dev+0xe2/0x170
[ 4228.905601][   T73]      inet6_addr_add+0x12f/0xa40
[ 4228.905601][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4228.905601][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4228.905601][   T73]      netlink_rcv_skb+0x130/0x360
[ 4228.905601][   T73]      netlink_unicast+0x449/0x710
[ 4228.905601][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4228.905601][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4228.905601][   T73]      ___sys_sendmsg+0xee/0x170
[ 4228.905601][   T73]      __sys_sendmsg+0xcd/0x170
[ 4228.905601][   T73]      do_syscall_64+0xc6/0x1e0
[ 4228.905601][   T73] 
[ 4228.907792][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4228.907792][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4228.907792][   T73]      ipv6_find_idev+0x102/0x170
[ 4228.907792][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4228.907792][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4228.907792][   T73]      netlink_rcv_skb+0x130/0x360
[ 4228.907792][   T73]      netlink_unicast+0x449/0x710
[ 4228.907792][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4228.907792][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4228.907792][   T73]      ___sys_sendmsg+0xee/0x170
[ 4228.907792][   T73]      __sys_sendmsg+0xcd/0x170
[ 4228.907792][   T73]      do_syscall_64+0xc6/0x1e0
[ 4228.907792][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4228.907792][   T73] 
[ 4228.909560][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4228.909560][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4228.909560][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4228.909560][   T73]      ipv6_find_idev+0x102/0x170
[ 4228.909560][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4228.909560][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4228.909560][   T73]      netlink_rcv_skb+0x130/0x360
[ 4228.909560][   T73]      netlink_unicast+0x449/0x710
[ 4228.909560][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4228.909560][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4228.909560][   T73]      ___sys_sendmsg+0xee/0x170
[ 4228.909560][   T73]      __sys_sendmsg+0xcd/0x170
[ 4228.909560][   T73]      do_syscall_64+0xc6/0x1e0
[ 4228.909560][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4228.909560][   T73] 
[ 4228.911413][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4228.912182][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4228.912182][   T73]      netdev_get_by_index+0x5e/0x80
[ 4228.912182][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4228.912182][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4228.912182][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4228.912182][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4228.912182][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4228.912182][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4228.912182][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4228.912182][   T73]      addrconf_dad_begin+0x310/0x670
[ 4228.912182][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4228.912182][   T73]      process_one_work+0x84d/0x18a0
[ 4228.912182][   T73]      worker_thread+0x587/0xd30
[ 4228.912182][   T73]      kthread+0x28a/0x350
[ 4228.912182][   T73]      ret_from_fork+0x31/0x70
[ 4228.912182][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4228.912182][   T73] 
[ 4228.914080][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4228.914080][   T73]      netdev_get_by_index+0x5e/0x80
[ 4228.914080][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4228.914080][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4228.914080][   T73]      ip6_route_add+0x1c/0x140
[ 4228.914080][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4228.914080][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4228.914080][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4228.914080][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4228.914080][   T73]      netlink_rcv_skb+0x130/0x360
[ 4228.914080][   T73]      netlink_unicast+0x449/0x710
[ 4228.914080][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4228.914080][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4228.914080][   T73]      ___sys_sendmsg+0xee/0x170
[ 4228.914080][   T73]      __sys_sendmsg+0xcd/0x170
[ 4228.914080][   T73]      do_syscall_64+0xc6/0x1e0
[ 4228.914080][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4228.914080][   T73] 
[ 4228.916154][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4228.916154][   T73]      netdev_get_by_index+0x5e/0x80
[ 4228.916154][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4228.916154][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4228.916154][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4228.916154][   T73]      ipv6_add_addr+0x411/0x2000
[ 4228.916154][   T73]      inet6_addr_add+0x30e/0xa40
[ 4228.916154][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4228.916154][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4228.916154][   T73]      netlink_rcv_skb+0x130/0x360
[ 4228.916154][   T73]      netlink_unicast+0x449/0x710
[ 4228.916154][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4228.916154][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4228.916154][   T73]      ___sys_sendmsg+0xee/0x170
[ 4228.916154][   T73]      __sys_sendmsg+0xcd/0x170
[ 4228.916154][   T73]      do_syscall_64+0xc6/0x1e0
[ 4228.916154][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4228.916154][   T73] 
[ 4228.918403][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4228.918403][   T73]      netdev_get_by_index+0x5e/0x80
[ 4228.918403][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4228.918403][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4228.918403][   T73]      ip6_route_add+0x1c/0x140
[ 4228.918403][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4228.918403][   T73]      addrconf_add_dev+0xe2/0x170
[ 4228.918403][   T73]      inet6_addr_add+0x12f/0xa40
[ 4228.918403][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4228.918403][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4228.918403][   T73]      netlink_rcv_skb+0x130/0x360
[ 4228.918403][   T73]      netlink_unicast+0x449/0x710
[ 4228.918403][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4228.918403][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4228.918403][   T73]      ___sys_sendmsg+0xee/0x170
[ 4228.918403][   T73]      __sys_sendmsg+0xcd/0x170
[ 4228.918403][   T73]      do_syscall_64+0xc6/0x1e0
[ 4228.918403][   T73] 
[ 4228.922929][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4228.922929][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4228.922929][   T73]      ipv6_find_idev+0x102/0x170
[ 4228.922929][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4228.922929][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4228.922929][   T73]      netlink_rcv_skb+0x130/0x360
[ 4228.922929][   T73]      netlink_unicast+0x449/0x710
[ 4228.922929][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4228.922929][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4228.922929][   T73]      ___sys_sendmsg+0xee/0x170
[ 4228.922929][   T73]      __sys_sendmsg+0xcd/0x170
[ 4228.922929][   T73]      do_syscall_64+0xc6/0x1e0
[ 4228.922929][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4228.922929][   T73] 
[ 4228.924719][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4228.924719][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4228.924719][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4228.924719][   T73]      ipv6_find_idev+0x102/0x170
[ 4228.924719][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4228.924719][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4228.924719][   T73]      netlink_rcv_skb+0x130/0x360
[ 4228.924719][   T73]      netlink_unicast+0x449/0x710
[ 4228.924719][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4228.924719][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4228.924719][   T73]      ___sys_sendmsg+0xee/0x170
[ 4228.924719][   T73]      __sys_sendmsg+0xcd/0x170
[ 4228.924719][   T73]      do_syscall_64+0xc6/0x1e0
[ 4228.924719][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4228.924719][   T73] 
[ 4239.167852][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4239.168361][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4239.168361][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4239.168361][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4239.168361][   T73]      fib6_nh_init+0xa22/0x1580
[ 4239.168361][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4239.168361][   T73]      ip6_route_add+0x1c/0x140
[ 4239.168361][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4239.168361][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4239.168361][   T73]      netlink_rcv_skb+0x130/0x360
[ 4239.168361][   T73]      netlink_unicast+0x449/0x710
[ 4239.168361][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4239.168361][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4239.168361][   T73]      ___sys_sendmsg+0xee/0x170
[ 4239.168361][   T73]      __sys_sendmsg+0xcd/0x170
[ 4239.168361][   T73]      do_syscall_64+0xc6/0x1e0
[ 4239.168361][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4239.168361][   T73] 
[ 4239.170298][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4239.170298][   T73]      dst_init+0x84/0x4a0
[ 4239.170298][   T73]      dst_alloc+0x97/0x150
[ 4239.170298][   T73]      ip6_dst_alloc+0x23/0x90
[ 4239.170298][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4239.170298][   T73]      ip6_pol_route+0x56f/0x840
[ 4239.170298][   T73]      fib6_rule_lookup+0x456/0x630
[ 4239.170298][   T73]      ip6_route_input+0x59c/0xa50
[ 4239.170298][   T73]      ipv6_rcv+0x397/0x810
[ 4239.170298][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4239.170298][   T73]      process_backlog+0x101/0x620
[ 4239.170298][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4239.170298][   T73]      net_rx_action+0x495/0xbe0
[ 4239.170298][   T73]      __do_softirq+0x1b5/0x7f6
[ 4239.170298][   T73] 
[ 4239.171942][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4239.171942][   T73]      netdev_get_by_index+0x5e/0x80
[ 4239.171942][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4239.171942][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4239.171942][   T73]      ip6_route_add+0x1c/0x140
[ 4239.171942][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4239.171942][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4239.171942][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4239.171942][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4239.171942][   T73]      netlink_rcv_skb+0x130/0x360
[ 4239.171942][   T73]      netlink_unicast+0x449/0x710
[ 4239.171942][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4239.171942][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4239.171942][   T73]      ___sys_sendmsg+0xee/0x170
[ 4239.171942][   T73]      __sys_sendmsg+0xcd/0x170
[ 4239.171942][   T73]      do_syscall_64+0xc6/0x1e0
[ 4239.171942][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4239.171942][   T73] 
[ 4239.173954][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4239.173954][   T73]      netdev_get_by_index+0x5e/0x80
[ 4239.173954][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4239.173954][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4239.173954][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4239.173954][   T73]      ipv6_add_addr+0x411/0x2000
[ 4239.173954][   T73]      inet6_addr_add+0x30e/0xa40
[ 4239.173954][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4239.173954][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4239.173954][   T73]      netlink_rcv_skb+0x130/0x360
[ 4239.173954][   T73]      netlink_unicast+0x449/0x710
[ 4239.173954][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4239.173954][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4239.173954][   T73]      ___sys_sendmsg+0xee/0x170
[ 4239.173954][   T73]      __sys_sendmsg+0xcd/0x170
[ 4239.173954][   T73]      do_syscall_64+0xc6/0x1e0
[ 4239.173954][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4239.173954][   T73] 
[ 4239.175971][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4239.175971][   T73]      netdev_get_by_index+0x5e/0x80
[ 4239.175971][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4239.175971][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4239.175971][   T73]      ip6_route_add+0x1c/0x140
[ 4239.175971][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4239.175971][   T73]      addrconf_add_dev+0xe2/0x170
[ 4239.175971][   T73]      inet6_addr_add+0x12f/0xa40
[ 4239.175971][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4239.175971][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4239.175971][   T73]      netlink_rcv_skb+0x130/0x360
[ 4239.175971][   T73]      netlink_unicast+0x449/0x710
[ 4239.175971][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4239.175971][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4239.175971][   T73]      ___sys_sendmsg+0xee/0x170
[ 4239.175971][   T73]      __sys_sendmsg+0xcd/0x170
[ 4239.175971][   T73]      do_syscall_64+0xc6/0x1e0
[ 4239.175971][   T73] 
[ 4239.177937][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4239.177937][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4239.177937][   T73]      ipv6_find_idev+0x102/0x170
[ 4239.177937][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4239.177937][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4239.177937][   T73]      netlink_rcv_skb+0x130/0x360
[ 4239.177937][   T73]      netlink_unicast+0x449/0x710
[ 4239.177937][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4239.177937][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4239.177937][   T73]      ___sys_sendmsg+0xee/0x170
[ 4239.177937][   T73]      __sys_sendmsg+0xcd/0x170
[ 4239.177937][   T73]      do_syscall_64+0xc6/0x1e0
[ 4239.177937][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4239.177937][   T73] 
[ 4239.179482][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4239.179482][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4239.179482][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4239.179482][   T73]      ipv6_find_idev+0x102/0x170
[ 4239.179482][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4239.179482][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4239.179482][   T73]      netlink_rcv_skb+0x130/0x360
[ 4239.179482][   T73]      netlink_unicast+0x449/0x710
[ 4239.179482][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4239.179482][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4239.179482][   T73]      ___sys_sendmsg+0xee/0x170
[ 4239.179482][   T73]      __sys_sendmsg+0xcd/0x170
[ 4239.179482][   T73]      do_syscall_64+0xc6/0x1e0
[ 4239.179482][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4239.179482][   T73] 
[ 4239.181175][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4239.181467][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4239.181467][   T73]      netdev_get_by_index+0x5e/0x80
[ 4239.181467][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4239.181467][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4239.181467][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4239.181467][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4239.181467][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4239.181467][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4239.181467][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4239.181467][   T73]      addrconf_dad_begin+0x310/0x670
[ 4239.181467][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4239.181467][   T73]      process_one_work+0x84d/0x18a0
[ 4239.181467][   T73]      worker_thread+0x587/0xd30
[ 4239.181467][   T73]      kthread+0x28a/0x350
[ 4239.181467][   T73]      ret_from_fork+0x31/0x70
[ 4239.181467][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4239.181467][   T73] 
[ 4239.183379][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4239.183379][   T73]      netdev_get_by_index+0x5e/0x80
[ 4239.183379][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4239.183379][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4239.183379][   T73]      ip6_route_add+0x1c/0x140
[ 4239.183379][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4239.183379][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4239.183379][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4239.183379][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4239.183379][   T73]      netlink_rcv_skb+0x130/0x360
[ 4239.183379][   T73]      netlink_unicast+0x449/0x710
[ 4239.183379][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4239.183379][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4239.183379][   T73]      ___sys_sendmsg+0xee/0x170
[ 4239.183379][   T73]      __sys_sendmsg+0xcd/0x170
[ 4239.183379][   T73]      do_syscall_64+0xc6/0x1e0
[ 4239.183379][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4239.183379][   T73] 
[ 4239.185392][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4239.185392][   T73]      netdev_get_by_index+0x5e/0x80
[ 4239.185392][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4239.185392][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4239.185392][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4239.185392][   T73]      ipv6_add_addr+0x411/0x2000
[ 4239.185392][   T73]      inet6_addr_add+0x30e/0xa40
[ 4239.185392][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4239.185392][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4239.185392][   T73]      netlink_rcv_skb+0x130/0x360
[ 4239.185392][   T73]      netlink_unicast+0x449/0x710
[ 4239.185392][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4239.185392][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4239.185392][   T73]      ___sys_sendmsg+0xee/0x170
[ 4239.185392][   T73]      __sys_sendmsg+0xcd/0x170
[ 4239.185392][   T73]      do_syscall_64+0xc6/0x1e0
[ 4239.185392][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4239.185392][   T73] 
[ 4239.187412][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4239.187412][   T73]      netdev_get_by_index+0x5e/0x80
[ 4239.187412][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4239.187412][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4239.187412][   T73]      ip6_route_add+0x1c/0x140
[ 4239.187412][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4239.187412][   T73]      addrconf_add_dev+0xe2/0x170
[ 4239.187412][   T73]      inet6_addr_add+0x12f/0xa40
[ 4239.187412][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4239.187412][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4239.187412][   T73]      netlink_rcv_skb+0x130/0x360
[ 4239.187412][   T73]      netlink_unicast+0x449/0x710
[ 4239.187412][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4239.187412][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4239.187412][   T73]      ___sys_sendmsg+0xee/0x170
[ 4239.187412][   T73]      __sys_sendmsg+0xcd/0x170
[ 4239.187412][   T73]      do_syscall_64+0xc6/0x1e0
[ 4239.187412][   T73] 
[ 4239.189388][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4239.189388][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4239.189388][   T73]      ipv6_find_idev+0x102/0x170
[ 4239.189388][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4239.189388][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4239.189388][   T73]      netlink_rcv_skb+0x130/0x360
[ 4239.189388][   T73]      netlink_unicast+0x449/0x710
[ 4239.189388][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4239.189388][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4239.189388][   T73]      ___sys_sendmsg+0xee/0x170
[ 4239.189388][   T73]      __sys_sendmsg+0xcd/0x170
[ 4239.189388][   T73]      do_syscall_64+0xc6/0x1e0
[ 4239.189388][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4239.189388][   T73] 
[ 4239.190926][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4239.190926][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4239.190926][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4239.190926][   T73]      ipv6_find_idev+0x102/0x170
[ 4239.190926][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4239.190926][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4239.190926][   T73]      netlink_rcv_skb+0x130/0x360
[ 4239.190926][   T73]      netlink_unicast+0x449/0x710
[ 4239.190926][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4239.190926][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4239.190926][   T73]      ___sys_sendmsg+0xee/0x170
[ 4239.190926][   T73]      __sys_sendmsg+0xcd/0x170
[ 4239.190926][   T73]      do_syscall_64+0xc6/0x1e0
[ 4239.190926][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4239.190926][   T73] 
[ 4239.192618][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4239.192903][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4239.192903][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4239.192903][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4239.192903][   T73]      fib6_nh_init+0xa22/0x1580
[ 4239.192903][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4239.192903][   T73]      ip6_route_add+0x1c/0x140
[ 4239.192903][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4239.192903][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4239.192903][   T73]      netlink_rcv_skb+0x130/0x360
[ 4239.192903][   T73]      netlink_unicast+0x449/0x710
[ 4239.192903][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4239.192903][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4239.192903][   T73]      ___sys_sendmsg+0xee/0x170
[ 4239.192903][   T73]      __sys_sendmsg+0xcd/0x170
[ 4239.192903][   T73]      do_syscall_64+0xc6/0x1e0
[ 4239.192903][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4239.192903][   T73] 
[ 4239.194988][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4239.194988][   T73]      dst_init+0x84/0x4a0
[ 4239.194988][   T73]      dst_alloc+0x97/0x150
[ 4239.194988][   T73]      ip6_dst_alloc+0x23/0x90
[ 4239.194988][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4239.194988][   T73]      ip6_pol_route+0x56f/0x840
[ 4239.194988][   T73]      fib6_rule_lookup+0x456/0x630
[ 4239.194988][   T73]      ip6_route_input+0x59c/0xa50
[ 4239.194988][   T73]      ipv6_rcv+0x397/0x810
[ 4239.194988][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4239.194988][   T73]      process_backlog+0x101/0x620
[ 4239.194988][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4239.194988][   T73]      net_rx_action+0x495/0xbe0
[ 4239.194988][   T73]      __do_softirq+0x1b5/0x7f6
[ 4239.194988][   T73] 
[ 4239.196808][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4239.196808][   T73]      netdev_get_by_index+0x5e/0x80
[ 4239.196808][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4239.196808][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4239.196808][   T73]      ip6_route_add+0x1c/0x140
[ 4239.196808][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4239.196808][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4239.196808][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4239.196808][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4239.196808][   T73]      netlink_rcv_skb+0x130/0x360
[ 4239.196808][   T73]      netlink_unicast+0x449/0x710
[ 4239.196808][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4239.196808][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4239.196808][   T73]      ___sys_sendmsg+0xee/0x170
[ 4239.196808][   T73]      __sys_sendmsg+0xcd/0x170
[ 4239.196808][   T73]      do_syscall_64+0xc6/0x1e0
[ 4239.196808][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4239.196808][   T73] 
[ 4239.199054][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4239.199054][   T73]      netdev_get_by_index+0x5e/0x80
[ 4239.199054][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4239.199054][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4239.199054][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4239.199054][   T73]      ipv6_add_addr+0x411/0x2000
[ 4239.199054][   T73]      inet6_addr_add+0x30e/0xa40
[ 4239.199054][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4239.199054][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4239.199054][   T73]      netlink_rcv_skb+0x130/0x360
[ 4239.199054][   T73]      netlink_unicast+0x449/0x710
[ 4239.199054][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4239.199054][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4239.199054][   T73]      ___sys_sendmsg+0xee/0x170
[ 4239.199054][   T73]      __sys_sendmsg+0xcd/0x170
[ 4239.199054][   T73]      do_syscall_64+0xc6/0x1e0
[ 4239.199054][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4239.199054][   T73] 
[ 4239.201233][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4239.201233][   T73]      netdev_get_by_index+0x5e/0x80
[ 4239.201233][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4239.201233][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4239.201233][   T73]      ip6_route_add+0x1c/0x140
[ 4239.201233][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4239.201233][   T73]      addrconf_add_dev+0xe2/0x170
[ 4239.201233][   T73]      inet6_addr_add+0x12f/0xa40
[ 4239.201233][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4239.201233][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4239.201233][   T73]      netlink_rcv_skb+0x130/0x360
[ 4239.201233][   T73]      netlink_unicast+0x449/0x710
[ 4239.201233][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4239.201233][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4239.201233][   T73]      ___sys_sendmsg+0xee/0x170
[ 4239.201233][   T73]      __sys_sendmsg+0xcd/0x170
[ 4239.201233][   T73]      do_syscall_64+0xc6/0x1e0
[ 4239.201233][   T73] 
[ 4239.203451][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4239.203451][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4239.203451][   T73]      ipv6_find_idev+0x102/0x170
[ 4239.203451][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4239.203451][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4239.203451][   T73]      netlink_rcv_skb+0x130/0x360
[ 4239.203451][   T73]      netlink_unicast+0x449/0x710
[ 4239.203451][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4239.203451][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4239.203451][   T73]      ___sys_sendmsg+0xee/0x170
[ 4239.203451][   T73]      __sys_sendmsg+0xcd/0x170
[ 4239.203451][   T73]      do_syscall_64+0xc6/0x1e0
[ 4239.203451][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4239.203451][   T73] 
[ 4239.205178][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4239.205178][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4239.205178][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4239.205178][   T73]      ipv6_find_idev+0x102/0x170
[ 4239.205178][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4239.205178][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4239.205178][   T73]      netlink_rcv_skb+0x130/0x360
[ 4239.205178][   T73]      netlink_unicast+0x449/0x710
[ 4239.205178][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4239.205178][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4239.205178][   T73]      ___sys_sendmsg+0xee/0x170
[ 4239.205178][   T73]      __sys_sendmsg+0xcd/0x170
[ 4239.205178][   T73]      do_syscall_64+0xc6/0x1e0
[ 4239.205178][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4239.205178][   T73] 
[ 4239.207048][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4239.207384][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4239.207384][   T73]      netdev_get_by_index+0x5e/0x80
[ 4239.207384][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4239.207384][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4239.207384][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4239.207384][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4239.207384][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4239.207384][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4239.207384][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4239.207384][   T73]      addrconf_dad_begin+0x310/0x670
[ 4239.207384][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4239.207384][   T73]      process_one_work+0x84d/0x18a0
[ 4239.207384][   T73]      worker_thread+0x587/0xd30
[ 4239.207384][   T73]      kthread+0x28a/0x350
[ 4239.207384][   T73]      ret_from_fork+0x31/0x70
[ 4239.207384][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4239.207384][   T73] 
[ 4239.209431][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4239.209431][   T73]      netdev_get_by_index+0x5e/0x80
[ 4239.209431][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4239.209431][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4239.209431][   T73]      ip6_route_add+0x1c/0x140
[ 4239.209431][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4239.209431][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4239.209431][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4239.209431][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4239.209431][   T73]      netlink_rcv_skb+0x130/0x360
[ 4239.209431][   T73]      netlink_unicast+0x449/0x710
[ 4239.209431][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4239.209431][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4239.209431][   T73]      ___sys_sendmsg+0xee/0x170
[ 4239.209431][   T73]      __sys_sendmsg+0xcd/0x170
[ 4239.209431][   T73]      do_syscall_64+0xc6/0x1e0
[ 4239.209431][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4239.209431][   T73] 
[ 4239.211671][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4239.211671][   T73]      netdev_get_by_index+0x5e/0x80
[ 4239.211671][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4239.211671][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4239.211671][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4239.211671][   T73]      ipv6_add_addr+0x411/0x2000
[ 4239.211671][   T73]      inet6_addr_add+0x30e/0xa40
[ 4239.211671][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4239.211671][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4239.211671][   T73]      netlink_rcv_skb+0x130/0x360
[ 4239.211671][   T73]      netlink_unicast+0x449/0x710
[ 4239.211671][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4239.211671][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4239.211671][   T73]      ___sys_sendmsg+0xee/0x170
[ 4239.211671][   T73]      __sys_sendmsg+0xcd/0x170
[ 4239.211671][   T73]      do_syscall_64+0xc6/0x1e0
[ 4239.211671][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4239.211671][   T73] 
[ 4239.213984][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4239.213984][   T73]      netdev_get_by_index+0x5e/0x80
[ 4239.213984][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4239.213984][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4239.213984][   T73]      ip6_route_add+0x1c/0x140
[ 4239.213984][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4239.213984][   T73]      addrconf_add_dev+0xe2/0x170
[ 4239.213984][   T73]      inet6_addr_add+0x12f/0xa40
[ 4239.213984][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4239.213984][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4239.213984][   T73]      netlink_rcv_skb+0x130/0x360
[ 4239.213984][   T73]      netlink_unicast+0x449/0x710
[ 4239.213984][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4239.213984][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4239.213984][   T73]      ___sys_sendmsg+0xee/0x170
[ 4239.213984][   T73]      __sys_sendmsg+0xcd/0x170
[ 4239.213984][   T73]      do_syscall_64+0xc6/0x1e0
[ 4239.213984][   T73] 
[ 4239.216207][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4239.216207][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4239.216207][   T73]      ipv6_find_idev+0x102/0x170
[ 4239.216207][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4239.216207][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4239.216207][   T73]      netlink_rcv_skb+0x130/0x360
[ 4239.216207][   T73]      netlink_unicast+0x449/0x710
[ 4239.216207][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4239.216207][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4239.216207][   T73]      ___sys_sendmsg+0xee/0x170
[ 4239.216207][   T73]      __sys_sendmsg+0xcd/0x170
[ 4239.216207][   T73]      do_syscall_64+0xc6/0x1e0
[ 4239.216207][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4239.216207][   T73] 
[ 4239.217926][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4239.217926][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4239.217926][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4239.217926][   T73]      ipv6_find_idev+0x102/0x170
[ 4239.217926][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4239.217926][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4239.217926][   T73]      netlink_rcv_skb+0x130/0x360
[ 4239.217926][   T73]      netlink_unicast+0x449/0x710
[ 4239.217926][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4239.217926][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4239.217926][   T73]      ___sys_sendmsg+0xee/0x170
[ 4239.217926][   T73]      __sys_sendmsg+0xcd/0x170
[ 4239.217926][   T73]      do_syscall_64+0xc6/0x1e0
[ 4239.217926][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4239.217926][   T73] 
[ 4249.455697][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4249.456170][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4249.456170][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4249.456170][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4249.456170][   T73]      fib6_nh_init+0xa22/0x1580
[ 4249.456170][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4249.456170][   T73]      ip6_route_add+0x1c/0x140
[ 4249.456170][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4249.456170][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4249.456170][   T73]      netlink_rcv_skb+0x130/0x360
[ 4249.456170][   T73]      netlink_unicast+0x449/0x710
[ 4249.456170][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4249.456170][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4249.456170][   T73]      ___sys_sendmsg+0xee/0x170
[ 4249.456170][   T73]      __sys_sendmsg+0xcd/0x170
[ 4249.456170][   T73]      do_syscall_64+0xc6/0x1e0
[ 4249.456170][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4249.456170][   T73] 
[ 4249.458070][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4249.458070][   T73]      dst_init+0x84/0x4a0
[ 4249.458070][   T73]      dst_alloc+0x97/0x150
[ 4249.458070][   T73]      ip6_dst_alloc+0x23/0x90
[ 4249.458070][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4249.458070][   T73]      ip6_pol_route+0x56f/0x840
[ 4249.458070][   T73]      fib6_rule_lookup+0x456/0x630
[ 4249.458070][   T73]      ip6_route_input+0x59c/0xa50
[ 4249.458070][   T73]      ipv6_rcv+0x397/0x810
[ 4249.458070][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4249.458070][   T73]      process_backlog+0x101/0x620
[ 4249.458070][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4249.458070][   T73]      net_rx_action+0x495/0xbe0
[ 4249.458070][   T73]      __do_softirq+0x1b5/0x7f6
[ 4249.458070][   T73] 
[ 4249.459701][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4249.459701][   T73]      netdev_get_by_index+0x5e/0x80
[ 4249.459701][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4249.459701][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4249.459701][   T73]      ip6_route_add+0x1c/0x140
[ 4249.459701][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4249.459701][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4249.459701][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4249.459701][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4249.459701][   T73]      netlink_rcv_skb+0x130/0x360
[ 4249.459701][   T73]      netlink_unicast+0x449/0x710
[ 4249.459701][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4249.459701][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4249.459701][   T73]      ___sys_sendmsg+0xee/0x170
[ 4249.459701][   T73]      __sys_sendmsg+0xcd/0x170
[ 4249.459701][   T73]      do_syscall_64+0xc6/0x1e0
[ 4249.459701][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4249.459701][   T73] 
[ 4249.462259][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4249.462259][   T73]      netdev_get_by_index+0x5e/0x80
[ 4249.462259][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4249.462259][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4249.462259][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4249.462259][   T73]      ipv6_add_addr+0x411/0x2000
[ 4249.462259][   T73]      inet6_addr_add+0x30e/0xa40
[ 4249.462259][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4249.462259][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4249.462259][   T73]      netlink_rcv_skb+0x130/0x360
[ 4249.462259][   T73]      netlink_unicast+0x449/0x710
[ 4249.462259][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4249.462259][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4249.462259][   T73]      ___sys_sendmsg+0xee/0x170
[ 4249.462259][   T73]      __sys_sendmsg+0xcd/0x170
[ 4249.462259][   T73]      do_syscall_64+0xc6/0x1e0
[ 4249.462259][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4249.462259][   T73] 
[ 4249.467059][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4249.467059][   T73]      netdev_get_by_index+0x5e/0x80
[ 4249.467059][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4249.467059][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4249.467059][   T73]      ip6_route_add+0x1c/0x140
[ 4249.467059][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4249.467059][   T73]      addrconf_add_dev+0xe2/0x170
[ 4249.467059][   T73]      inet6_addr_add+0x12f/0xa40
[ 4249.467059][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4249.467059][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4249.467059][   T73]      netlink_rcv_skb+0x130/0x360
[ 4249.467059][   T73]      netlink_unicast+0x449/0x710
[ 4249.467059][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4249.467059][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4249.467059][   T73]      ___sys_sendmsg+0xee/0x170
[ 4249.467059][   T73]      __sys_sendmsg+0xcd/0x170
[ 4249.467059][   T73]      do_syscall_64+0xc6/0x1e0
[ 4249.467059][   T73] 
[ 4249.469028][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4249.469028][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4249.469028][   T73]      ipv6_find_idev+0x102/0x170
[ 4249.469028][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4249.469028][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4249.469028][   T73]      netlink_rcv_skb+0x130/0x360
[ 4249.469028][   T73]      netlink_unicast+0x449/0x710
[ 4249.469028][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4249.469028][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4249.469028][   T73]      ___sys_sendmsg+0xee/0x170
[ 4249.469028][   T73]      __sys_sendmsg+0xcd/0x170
[ 4249.469028][   T73]      do_syscall_64+0xc6/0x1e0
[ 4249.469028][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4249.469028][   T73] 
[ 4249.470567][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4249.470567][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4249.470567][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4249.470567][   T73]      ipv6_find_idev+0x102/0x170
[ 4249.470567][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4249.470567][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4249.470567][   T73]      netlink_rcv_skb+0x130/0x360
[ 4249.470567][   T73]      netlink_unicast+0x449/0x710
[ 4249.470567][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4249.470567][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4249.470567][   T73]      ___sys_sendmsg+0xee/0x170
[ 4249.470567][   T73]      __sys_sendmsg+0xcd/0x170
[ 4249.470567][   T73]      do_syscall_64+0xc6/0x1e0
[ 4249.470567][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4249.470567][   T73] 
[ 4249.472248][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4249.472531][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4249.472531][   T73]      netdev_get_by_index+0x5e/0x80
[ 4249.472531][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4249.472531][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4249.472531][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4249.472531][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4249.472531][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4249.472531][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4249.472531][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4249.472531][   T73]      addrconf_dad_begin+0x310/0x670
[ 4249.472531][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4249.472531][   T73]      process_one_work+0x84d/0x18a0
[ 4249.472531][   T73]      worker_thread+0x587/0xd30
[ 4249.472531][   T73]      kthread+0x28a/0x350
[ 4249.472531][   T73]      ret_from_fork+0x31/0x70
[ 4249.472531][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4249.472531][   T73] 
[ 4249.474430][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4249.474430][   T73]      netdev_get_by_index+0x5e/0x80
[ 4249.474430][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4249.474430][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4249.474430][   T73]      ip6_route_add+0x1c/0x140
[ 4249.474430][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4249.474430][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4249.474430][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4249.474430][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4249.474430][   T73]      netlink_rcv_skb+0x130/0x360
[ 4249.474430][   T73]      netlink_unicast+0x449/0x710
[ 4249.474430][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4249.474430][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4249.474430][   T73]      ___sys_sendmsg+0xee/0x170
[ 4249.474430][   T73]      __sys_sendmsg+0xcd/0x170
[ 4249.474430][   T73]      do_syscall_64+0xc6/0x1e0
[ 4249.474430][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4249.474430][   T73] 
[ 4249.476430][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4249.476430][   T73]      netdev_get_by_index+0x5e/0x80
[ 4249.476430][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4249.476430][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4249.476430][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4249.476430][   T73]      ipv6_add_addr+0x411/0x2000
[ 4249.476430][   T73]      inet6_addr_add+0x30e/0xa40
[ 4249.476430][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4249.476430][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4249.476430][   T73]      netlink_rcv_skb+0x130/0x360
[ 4249.476430][   T73]      netlink_unicast+0x449/0x710
[ 4249.476430][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4249.476430][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4249.476430][   T73]      ___sys_sendmsg+0xee/0x170
[ 4249.476430][   T73]      __sys_sendmsg+0xcd/0x170
[ 4249.476430][   T73]      do_syscall_64+0xc6/0x1e0
[ 4249.476430][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4249.476430][   T73] 
[ 4249.478411][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4249.478411][   T73]      netdev_get_by_index+0x5e/0x80
[ 4249.478411][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4249.478411][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4249.478411][   T73]      ip6_route_add+0x1c/0x140
[ 4249.478411][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4249.478411][   T73]      addrconf_add_dev+0xe2/0x170
[ 4249.478411][   T73]      inet6_addr_add+0x12f/0xa40
[ 4249.478411][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4249.478411][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4249.478411][   T73]      netlink_rcv_skb+0x130/0x360
[ 4249.478411][   T73]      netlink_unicast+0x449/0x710
[ 4249.478411][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4249.478411][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4249.478411][   T73]      ___sys_sendmsg+0xee/0x170
[ 4249.478411][   T73]      __sys_sendmsg+0xcd/0x170
[ 4249.478411][   T73]      do_syscall_64+0xc6/0x1e0
[ 4249.478411][   T73] 
[ 4249.480362][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4249.480362][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4249.480362][   T73]      ipv6_find_idev+0x102/0x170
[ 4249.480362][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4249.480362][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4249.480362][   T73]      netlink_rcv_skb+0x130/0x360
[ 4249.480362][   T73]      netlink_unicast+0x449/0x710
[ 4249.480362][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4249.480362][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4249.480362][   T73]      ___sys_sendmsg+0xee/0x170
[ 4249.480362][   T73]      __sys_sendmsg+0xcd/0x170
[ 4249.480362][   T73]      do_syscall_64+0xc6/0x1e0
[ 4249.480362][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4249.480362][   T73] 
[ 4249.481890][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4249.481890][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4249.481890][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4249.481890][   T73]      ipv6_find_idev+0x102/0x170
[ 4249.481890][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4249.481890][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4249.481890][   T73]      netlink_rcv_skb+0x130/0x360
[ 4249.481890][   T73]      netlink_unicast+0x449/0x710
[ 4249.481890][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4249.481890][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4249.481890][   T73]      ___sys_sendmsg+0xee/0x170
[ 4249.481890][   T73]      __sys_sendmsg+0xcd/0x170
[ 4249.481890][   T73]      do_syscall_64+0xc6/0x1e0
[ 4249.481890][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4249.481890][   T73] 
[ 4249.483561][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4249.483840][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4249.483840][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4249.483840][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4249.483840][   T73]      fib6_nh_init+0xa22/0x1580
[ 4249.483840][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4249.483840][   T73]      ip6_route_add+0x1c/0x140
[ 4249.483840][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4249.483840][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4249.483840][   T73]      netlink_rcv_skb+0x130/0x360
[ 4249.483840][   T73]      netlink_unicast+0x449/0x710
[ 4249.483840][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4249.483840][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4249.483840][   T73]      ___sys_sendmsg+0xee/0x170
[ 4249.483840][   T73]      __sys_sendmsg+0xcd/0x170
[ 4249.483840][   T73]      do_syscall_64+0xc6/0x1e0
[ 4249.483840][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4249.483840][   T73] 
[ 4249.485843][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4249.485843][   T73]      dst_init+0x84/0x4a0
[ 4249.485843][   T73]      dst_alloc+0x97/0x150
[ 4249.485843][   T73]      ip6_dst_alloc+0x23/0x90
[ 4249.485843][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4249.485843][   T73]      ip6_pol_route+0x56f/0x840
[ 4249.485843][   T73]      fib6_rule_lookup+0x456/0x630
[ 4249.485843][   T73]      ip6_route_input+0x59c/0xa50
[ 4249.485843][   T73]      ipv6_rcv+0x397/0x810
[ 4249.485843][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4249.485843][   T73]      process_backlog+0x101/0x620
[ 4249.485843][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4249.485843][   T73]      net_rx_action+0x495/0xbe0
[ 4249.485843][   T73]      __do_softirq+0x1b5/0x7f6
[ 4249.485843][   T73] 
[ 4249.487521][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4249.487521][   T73]      netdev_get_by_index+0x5e/0x80
[ 4249.487521][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4249.487521][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4249.487521][   T73]      ip6_route_add+0x1c/0x140
[ 4249.487521][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4249.487521][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4249.487521][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4249.487521][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4249.487521][   T73]      netlink_rcv_skb+0x130/0x360
[ 4249.487521][   T73]      netlink_unicast+0x449/0x710
[ 4249.487521][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4249.487521][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4249.487521][   T73]      ___sys_sendmsg+0xee/0x170
[ 4249.487521][   T73]      __sys_sendmsg+0xcd/0x170
[ 4249.487521][   T73]      do_syscall_64+0xc6/0x1e0
[ 4249.487521][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4249.487521][   T73] 
[ 4249.489630][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4249.489630][   T73]      netdev_get_by_index+0x5e/0x80
[ 4249.489630][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4249.489630][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4249.489630][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4249.489630][   T73]      ipv6_add_addr+0x411/0x2000
[ 4249.489630][   T73]      inet6_addr_add+0x30e/0xa40
[ 4249.489630][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4249.489630][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4249.489630][   T73]      netlink_rcv_skb+0x130/0x360
[ 4249.489630][   T73]      netlink_unicast+0x449/0x710
[ 4249.489630][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4249.489630][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4249.489630][   T73]      ___sys_sendmsg+0xee/0x170
[ 4249.489630][   T73]      __sys_sendmsg+0xcd/0x170
[ 4249.489630][   T73]      do_syscall_64+0xc6/0x1e0
[ 4249.489630][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4249.489630][   T73] 
[ 4249.491818][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4249.491818][   T73]      netdev_get_by_index+0x5e/0x80
[ 4249.491818][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4249.491818][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4249.491818][   T73]      ip6_route_add+0x1c/0x140
[ 4249.491818][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4249.491818][   T73]      addrconf_add_dev+0xe2/0x170
[ 4249.491818][   T73]      inet6_addr_add+0x12f/0xa40
[ 4249.491818][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4249.491818][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4249.491818][   T73]      netlink_rcv_skb+0x130/0x360
[ 4249.491818][   T73]      netlink_unicast+0x449/0x710
[ 4249.491818][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4249.491818][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4249.491818][   T73]      ___sys_sendmsg+0xee/0x170
[ 4249.491818][   T73]      __sys_sendmsg+0xcd/0x170
[ 4249.491818][   T73]      do_syscall_64+0xc6/0x1e0
[ 4249.491818][   T73] 
[ 4249.494126][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4249.494126][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4249.494126][   T73]      ipv6_find_idev+0x102/0x170
[ 4249.494126][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4249.494126][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4249.494126][   T73]      netlink_rcv_skb+0x130/0x360
[ 4249.494126][   T73]      netlink_unicast+0x449/0x710
[ 4249.494126][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4249.494126][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4249.494126][   T73]      ___sys_sendmsg+0xee/0x170
[ 4249.494126][   T73]      __sys_sendmsg+0xcd/0x170
[ 4249.494126][   T73]      do_syscall_64+0xc6/0x1e0
[ 4249.494126][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4249.494126][   T73] 
[ 4249.495918][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4249.495918][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4249.495918][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4249.495918][   T73]      ipv6_find_idev+0x102/0x170
[ 4249.495918][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4249.495918][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4249.495918][   T73]      netlink_rcv_skb+0x130/0x360
[ 4249.495918][   T73]      netlink_unicast+0x449/0x710
[ 4249.495918][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4249.495918][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4249.495918][   T73]      ___sys_sendmsg+0xee/0x170
[ 4249.495918][   T73]      __sys_sendmsg+0xcd/0x170
[ 4249.495918][   T73]      do_syscall_64+0xc6/0x1e0
[ 4249.495918][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4249.495918][   T73] 
[ 4249.497919][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4249.498214][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4249.498214][   T73]      netdev_get_by_index+0x5e/0x80
[ 4249.498214][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4249.498214][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4249.498214][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4249.498214][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4249.498214][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4249.498214][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4249.498214][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4249.498214][   T73]      addrconf_dad_begin+0x310/0x670
[ 4249.498214][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4249.498214][   T73]      process_one_work+0x84d/0x18a0
[ 4249.498214][   T73]      worker_thread+0x587/0xd30
[ 4249.498214][   T73]      kthread+0x28a/0x350
[ 4249.498214][   T73]      ret_from_fork+0x31/0x70
[ 4249.498214][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4249.498214][   T73] 
[ 4249.500473][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4249.500473][   T73]      netdev_get_by_index+0x5e/0x80
[ 4249.500473][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4249.500473][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4249.500473][   T73]      ip6_route_add+0x1c/0x140
[ 4249.500473][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4249.500473][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4249.500473][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4249.500473][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4249.500473][   T73]      netlink_rcv_skb+0x130/0x360
[ 4249.500473][   T73]      netlink_unicast+0x449/0x710
[ 4249.500473][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4249.500473][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4249.500473][   T73]      ___sys_sendmsg+0xee/0x170
[ 4249.500473][   T73]      __sys_sendmsg+0xcd/0x170
[ 4249.500473][   T73]      do_syscall_64+0xc6/0x1e0
[ 4249.500473][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4249.500473][   T73] 
[ 4249.502842][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4249.502842][   T73]      netdev_get_by_index+0x5e/0x80
[ 4249.502842][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4249.502842][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4249.502842][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4249.502842][   T73]      ipv6_add_addr+0x411/0x2000
[ 4249.502842][   T73]      inet6_addr_add+0x30e/0xa40
[ 4249.502842][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4249.502842][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4249.502842][   T73]      netlink_rcv_skb+0x130/0x360
[ 4249.502842][   T73]      netlink_unicast+0x449/0x710
[ 4249.502842][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4249.502842][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4249.502842][   T73]      ___sys_sendmsg+0xee/0x170
[ 4249.502842][   T73]      __sys_sendmsg+0xcd/0x170
[ 4249.502842][   T73]      do_syscall_64+0xc6/0x1e0
[ 4249.502842][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4249.502842][   T73] 
[ 4249.505224][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4249.505224][   T73]      netdev_get_by_index+0x5e/0x80
[ 4249.505224][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4249.505224][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4249.505224][   T73]      ip6_route_add+0x1c/0x140
[ 4249.505224][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4249.505224][   T73]      addrconf_add_dev+0xe2/0x170
[ 4249.505224][   T73]      inet6_addr_add+0x12f/0xa40
[ 4249.505224][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4249.505224][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4249.505224][   T73]      netlink_rcv_skb+0x130/0x360
[ 4249.505224][   T73]      netlink_unicast+0x449/0x710
[ 4249.505224][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4249.505224][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4249.505224][   T73]      ___sys_sendmsg+0xee/0x170
[ 4249.505224][   T73]      __sys_sendmsg+0xcd/0x170
[ 4249.505224][   T73]      do_syscall_64+0xc6/0x1e0
[ 4249.505224][   T73] 
[ 4249.507536][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4249.507536][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4249.507536][   T73]      ipv6_find_idev+0x102/0x170
[ 4249.507536][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4249.507536][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4249.507536][   T73]      netlink_rcv_skb+0x130/0x360
[ 4249.507536][   T73]      netlink_unicast+0x449/0x710
[ 4249.507536][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4249.507536][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4249.507536][   T73]      ___sys_sendmsg+0xee/0x170
[ 4249.507536][   T73]      __sys_sendmsg+0xcd/0x170
[ 4249.507536][   T73]      do_syscall_64+0xc6/0x1e0
[ 4249.507536][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4249.507536][   T73] 
[ 4249.509324][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4249.509324][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4249.509324][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4249.509324][   T73]      ipv6_find_idev+0x102/0x170
[ 4249.509324][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4249.509324][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4249.509324][   T73]      netlink_rcv_skb+0x130/0x360
[ 4249.509324][   T73]      netlink_unicast+0x449/0x710
[ 4249.509324][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4249.509324][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4249.509324][   T73]      ___sys_sendmsg+0xee/0x170
[ 4249.509324][   T73]      __sys_sendmsg+0xcd/0x170
[ 4249.509324][   T73]      do_syscall_64+0xc6/0x1e0
[ 4249.509324][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4249.509324][   T73] 
[ 4259.751812][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4259.752315][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4259.752315][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4259.752315][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4259.752315][   T73]      fib6_nh_init+0xa22/0x1580
[ 4259.752315][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4259.752315][   T73]      ip6_route_add+0x1c/0x140
[ 4259.752315][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4259.752315][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4259.752315][   T73]      netlink_rcv_skb+0x130/0x360
[ 4259.752315][   T73]      netlink_unicast+0x449/0x710
[ 4259.752315][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4259.752315][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4259.752315][   T73]      ___sys_sendmsg+0xee/0x170
[ 4259.752315][   T73]      __sys_sendmsg+0xcd/0x170
[ 4259.752315][   T73]      do_syscall_64+0xc6/0x1e0
[ 4259.752315][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4259.752315][   T73] 
[ 4259.754437][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4259.754437][   T73]      dst_init+0x84/0x4a0
[ 4259.754437][   T73]      dst_alloc+0x97/0x150
[ 4259.754437][   T73]      ip6_dst_alloc+0x23/0x90
[ 4259.754437][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4259.754437][   T73]      ip6_pol_route+0x56f/0x840
[ 4259.754437][   T73]      fib6_rule_lookup+0x456/0x630
[ 4259.754437][   T73]      ip6_route_input+0x59c/0xa50
[ 4259.754437][   T73]      ipv6_rcv+0x397/0x810
[ 4259.754437][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4259.754437][   T73]      process_backlog+0x101/0x620
[ 4259.754437][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4259.754437][   T73]      net_rx_action+0x495/0xbe0
[ 4259.754437][   T73]      __do_softirq+0x1b5/0x7f6
[ 4259.754437][   T73] 
[ 4259.756280][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4259.756280][   T73]      netdev_get_by_index+0x5e/0x80
[ 4259.756280][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4259.756280][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4259.756280][   T73]      ip6_route_add+0x1c/0x140
[ 4259.756280][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4259.756280][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4259.756280][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4259.756280][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4259.756280][   T73]      netlink_rcv_skb+0x130/0x360
[ 4259.756280][   T73]      netlink_unicast+0x449/0x710
[ 4259.756280][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4259.756280][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4259.756280][   T73]      ___sys_sendmsg+0xee/0x170
[ 4259.756280][   T73]      __sys_sendmsg+0xcd/0x170
[ 4259.756280][   T73]      do_syscall_64+0xc6/0x1e0
[ 4259.756280][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4259.756280][   T73] 
[ 4259.758496][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4259.758496][   T73]      netdev_get_by_index+0x5e/0x80
[ 4259.758496][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4259.758496][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4259.758496][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4259.758496][   T73]      ipv6_add_addr+0x411/0x2000
[ 4259.758496][   T73]      inet6_addr_add+0x30e/0xa40
[ 4259.758496][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4259.758496][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4259.758496][   T73]      netlink_rcv_skb+0x130/0x360
[ 4259.758496][   T73]      netlink_unicast+0x449/0x710
[ 4259.758496][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4259.758496][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4259.758496][   T73]      ___sys_sendmsg+0xee/0x170
[ 4259.758496][   T73]      __sys_sendmsg+0xcd/0x170
[ 4259.758496][   T73]      do_syscall_64+0xc6/0x1e0
[ 4259.758496][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4259.758496][   T73] 
[ 4259.760727][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4259.760727][   T73]      netdev_get_by_index+0x5e/0x80
[ 4259.760727][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4259.760727][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4259.760727][   T73]      ip6_route_add+0x1c/0x140
[ 4259.760727][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4259.760727][   T73]      addrconf_add_dev+0xe2/0x170
[ 4259.760727][   T73]      inet6_addr_add+0x12f/0xa40
[ 4259.760727][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4259.760727][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4259.760727][   T73]      netlink_rcv_skb+0x130/0x360
[ 4259.760727][   T73]      netlink_unicast+0x449/0x710
[ 4259.760727][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4259.760727][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4259.760727][   T73]      ___sys_sendmsg+0xee/0x170
[ 4259.760727][   T73]      __sys_sendmsg+0xcd/0x170
[ 4259.760727][   T73]      do_syscall_64+0xc6/0x1e0
[ 4259.760727][   T73] 
[ 4259.762908][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4259.762908][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4259.762908][   T73]      ipv6_find_idev+0x102/0x170
[ 4259.762908][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4259.762908][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4259.762908][   T73]      netlink_rcv_skb+0x130/0x360
[ 4259.762908][   T73]      netlink_unicast+0x449/0x710
[ 4259.762908][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4259.762908][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4259.762908][   T73]      ___sys_sendmsg+0xee/0x170
[ 4259.762908][   T73]      __sys_sendmsg+0xcd/0x170
[ 4259.762908][   T73]      do_syscall_64+0xc6/0x1e0
[ 4259.762908][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4259.762908][   T73] 
[ 4259.764616][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4259.764616][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4259.764616][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4259.764616][   T73]      ipv6_find_idev+0x102/0x170
[ 4259.764616][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4259.764616][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4259.764616][   T73]      netlink_rcv_skb+0x130/0x360
[ 4259.764616][   T73]      netlink_unicast+0x449/0x710
[ 4259.764616][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4259.764616][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4259.764616][   T73]      ___sys_sendmsg+0xee/0x170
[ 4259.764616][   T73]      __sys_sendmsg+0xcd/0x170
[ 4259.764616][   T73]      do_syscall_64+0xc6/0x1e0
[ 4259.764616][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4259.764616][   T73] 
[ 4259.766504][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4259.766824][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4259.766824][   T73]      netdev_get_by_index+0x5e/0x80
[ 4259.766824][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4259.766824][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4259.766824][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4259.766824][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4259.766824][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4259.766824][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4259.766824][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4259.766824][   T73]      addrconf_dad_begin+0x310/0x670
[ 4259.766824][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4259.766824][   T73]      process_one_work+0x84d/0x18a0
[ 4259.766824][   T73]      worker_thread+0x587/0xd30
[ 4259.766824][   T73]      kthread+0x28a/0x350
[ 4259.766824][   T73]      ret_from_fork+0x31/0x70
[ 4259.766824][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4259.766824][   T73] 
[ 4259.768938][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4259.768938][   T73]      netdev_get_by_index+0x5e/0x80
[ 4259.768938][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4259.768938][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4259.768938][   T73]      ip6_route_add+0x1c/0x140
[ 4259.768938][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4259.768938][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4259.768938][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4259.768938][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4259.768938][   T73]      netlink_rcv_skb+0x130/0x360
[ 4259.768938][   T73]      netlink_unicast+0x449/0x710
[ 4259.768938][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4259.768938][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4259.768938][   T73]      ___sys_sendmsg+0xee/0x170
[ 4259.768938][   T73]      __sys_sendmsg+0xcd/0x170
[ 4259.768938][   T73]      do_syscall_64+0xc6/0x1e0
[ 4259.768938][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4259.768938][   T73] 
[ 4259.771149][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4259.771149][   T73]      netdev_get_by_index+0x5e/0x80
[ 4259.771149][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4259.771149][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4259.771149][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4259.771149][   T73]      ipv6_add_addr+0x411/0x2000
[ 4259.771149][   T73]      inet6_addr_add+0x30e/0xa40
[ 4259.771149][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4259.771149][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4259.771149][   T73]      netlink_rcv_skb+0x130/0x360
[ 4259.771149][   T73]      netlink_unicast+0x449/0x710
[ 4259.771149][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4259.771149][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4259.771149][   T73]      ___sys_sendmsg+0xee/0x170
[ 4259.771149][   T73]      __sys_sendmsg+0xcd/0x170
[ 4259.771149][   T73]      do_syscall_64+0xc6/0x1e0
[ 4259.771149][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4259.771149][   T73] 
[ 4259.773354][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4259.773354][   T73]      netdev_get_by_index+0x5e/0x80
[ 4259.773354][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4259.773354][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4259.773354][   T73]      ip6_route_add+0x1c/0x140
[ 4259.773354][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4259.773354][   T73]      addrconf_add_dev+0xe2/0x170
[ 4259.773354][   T73]      inet6_addr_add+0x12f/0xa40
[ 4259.773354][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4259.773354][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4259.773354][   T73]      netlink_rcv_skb+0x130/0x360
[ 4259.773354][   T73]      netlink_unicast+0x449/0x710
[ 4259.773354][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4259.773354][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4259.773354][   T73]      ___sys_sendmsg+0xee/0x170
[ 4259.773354][   T73]      __sys_sendmsg+0xcd/0x170
[ 4259.773354][   T73]      do_syscall_64+0xc6/0x1e0
[ 4259.773354][   T73] 
[ 4259.775536][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4259.775536][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4259.775536][   T73]      ipv6_find_idev+0x102/0x170
[ 4259.775536][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4259.775536][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4259.775536][   T73]      netlink_rcv_skb+0x130/0x360
[ 4259.775536][   T73]      netlink_unicast+0x449/0x710
[ 4259.775536][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4259.775536][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4259.775536][   T73]      ___sys_sendmsg+0xee/0x170
[ 4259.775536][   T73]      __sys_sendmsg+0xcd/0x170
[ 4259.775536][   T73]      do_syscall_64+0xc6/0x1e0
[ 4259.775536][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4259.775536][   T73] 
[ 4259.777261][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4259.777261][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4259.777261][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4259.777261][   T73]      ipv6_find_idev+0x102/0x170
[ 4259.777261][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4259.777261][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4259.777261][   T73]      netlink_rcv_skb+0x130/0x360
[ 4259.777261][   T73]      netlink_unicast+0x449/0x710
[ 4259.777261][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4259.777261][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4259.777261][   T73]      ___sys_sendmsg+0xee/0x170
[ 4259.777261][   T73]      __sys_sendmsg+0xcd/0x170
[ 4259.777261][   T73]      do_syscall_64+0xc6/0x1e0
[ 4259.777261][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4259.777261][   T73] 
[ 4259.779132][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4259.779431][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4259.779431][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4259.779431][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4259.779431][   T73]      fib6_nh_init+0xa22/0x1580
[ 4259.779431][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4259.779431][   T73]      ip6_route_add+0x1c/0x140
[ 4259.779431][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4259.779431][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4259.779431][   T73]      netlink_rcv_skb+0x130/0x360
[ 4259.779431][   T73]      netlink_unicast+0x449/0x710
[ 4259.779431][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4259.779431][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4259.779431][   T73]      ___sys_sendmsg+0xee/0x170
[ 4259.779431][   T73]      __sys_sendmsg+0xcd/0x170
[ 4259.779431][   T73]      do_syscall_64+0xc6/0x1e0
[ 4259.779431][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4259.779431][   T73] 
[ 4259.781708][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4259.781708][   T73]      dst_init+0x84/0x4a0
[ 4259.781708][   T73]      dst_alloc+0x97/0x150
[ 4259.781708][   T73]      ip6_dst_alloc+0x23/0x90
[ 4259.781708][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4259.781708][   T73]      ip6_pol_route+0x56f/0x840
[ 4259.781708][   T73]      fib6_rule_lookup+0x456/0x630
[ 4259.781708][   T73]      ip6_route_input+0x59c/0xa50
[ 4259.781708][   T73]      ipv6_rcv+0x397/0x810
[ 4259.781708][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4259.781708][   T73]      process_backlog+0x101/0x620
[ 4259.781708][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4259.781708][   T73]      net_rx_action+0x495/0xbe0
[ 4259.781708][   T73]      __do_softirq+0x1b5/0x7f6
[ 4259.781708][   T73] 
[ 4259.783771][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4259.783771][   T73]      netdev_get_by_index+0x5e/0x80
[ 4259.783771][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4259.783771][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4259.783771][   T73]      ip6_route_add+0x1c/0x140
[ 4259.783771][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4259.783771][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4259.783771][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4259.783771][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4259.783771][   T73]      netlink_rcv_skb+0x130/0x360
[ 4259.783771][   T73]      netlink_unicast+0x449/0x710
[ 4259.783771][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4259.783771][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4259.783771][   T73]      ___sys_sendmsg+0xee/0x170
[ 4259.783771][   T73]      __sys_sendmsg+0xcd/0x170
[ 4259.783771][   T73]      do_syscall_64+0xc6/0x1e0
[ 4259.783771][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4259.783771][   T73] 
[ 4259.786248][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4259.786248][   T73]      netdev_get_by_index+0x5e/0x80
[ 4259.786248][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4259.786248][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4259.786248][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4259.786248][   T73]      ipv6_add_addr+0x411/0x2000
[ 4259.786248][   T73]      inet6_addr_add+0x30e/0xa40
[ 4259.786248][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4259.786248][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4259.786248][   T73]      netlink_rcv_skb+0x130/0x360
[ 4259.786248][   T73]      netlink_unicast+0x449/0x710
[ 4259.786248][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4259.786248][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4259.786248][   T73]      ___sys_sendmsg+0xee/0x170
[ 4259.786248][   T73]      __sys_sendmsg+0xcd/0x170
[ 4259.786248][   T73]      do_syscall_64+0xc6/0x1e0
[ 4259.786248][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4259.786248][   T73] 
[ 4259.788742][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4259.788742][   T73]      netdev_get_by_index+0x5e/0x80
[ 4259.788742][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4259.788742][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4259.788742][   T73]      ip6_route_add+0x1c/0x140
[ 4259.788742][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4259.788742][   T73]      addrconf_add_dev+0xe2/0x170
[ 4259.788742][   T73]      inet6_addr_add+0x12f/0xa40
[ 4259.788742][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4259.788742][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4259.788742][   T73]      netlink_rcv_skb+0x130/0x360
[ 4259.788742][   T73]      netlink_unicast+0x449/0x710
[ 4259.788742][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4259.788742][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4259.788742][   T73]      ___sys_sendmsg+0xee/0x170
[ 4259.788742][   T73]      __sys_sendmsg+0xcd/0x170
[ 4259.788742][   T73]      do_syscall_64+0xc6/0x1e0
[ 4259.788742][   T73] 
[ 4259.791105][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4259.791105][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4259.791105][   T73]      ipv6_find_idev+0x102/0x170
[ 4259.791105][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4259.791105][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4259.791105][   T73]      netlink_rcv_skb+0x130/0x360
[ 4259.791105][   T73]      netlink_unicast+0x449/0x710
[ 4259.791105][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4259.791105][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4259.791105][   T73]      ___sys_sendmsg+0xee/0x170
[ 4259.791105][   T73]      __sys_sendmsg+0xcd/0x170
[ 4259.791105][   T73]      do_syscall_64+0xc6/0x1e0
[ 4259.791105][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4259.791105][   T73] 
[ 4259.793057][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4259.793057][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4259.793057][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4259.793057][   T73]      ipv6_find_idev+0x102/0x170
[ 4259.793057][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4259.793057][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4259.793057][   T73]      netlink_rcv_skb+0x130/0x360
[ 4259.793057][   T73]      netlink_unicast+0x449/0x710
[ 4259.793057][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4259.793057][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4259.793057][   T73]      ___sys_sendmsg+0xee/0x170
[ 4259.793057][   T73]      __sys_sendmsg+0xcd/0x170
[ 4259.793057][   T73]      do_syscall_64+0xc6/0x1e0
[ 4259.793057][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4259.793057][   T73] 
[ 4259.795193][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4259.795500][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4259.795500][   T73]      netdev_get_by_index+0x5e/0x80
[ 4259.795500][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4259.795500][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4259.795500][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4259.795500][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4259.795500][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4259.795500][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4259.795500][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4259.795500][   T73]      addrconf_dad_begin+0x310/0x670
[ 4259.795500][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4259.795500][   T73]      process_one_work+0x84d/0x18a0
[ 4259.795500][   T73]      worker_thread+0x587/0xd30
[ 4259.795500][   T73]      kthread+0x28a/0x350
[ 4259.795500][   T73]      ret_from_fork+0x31/0x70
[ 4259.795500][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4259.795500][   T73] 
[ 4259.797874][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4259.797874][   T73]      netdev_get_by_index+0x5e/0x80
[ 4259.797874][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4259.797874][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4259.797874][   T73]      ip6_route_add+0x1c/0x140
[ 4259.797874][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4259.797874][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4259.797874][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4259.797874][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4259.797874][   T73]      netlink_rcv_skb+0x130/0x360
[ 4259.797874][   T73]      netlink_unicast+0x449/0x710
[ 4259.797874][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4259.797874][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4259.797874][   T73]      ___sys_sendmsg+0xee/0x170
[ 4259.797874][   T73]      __sys_sendmsg+0xcd/0x170
[ 4259.797874][   T73]      do_syscall_64+0xc6/0x1e0
[ 4259.797874][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4259.797874][   T73] 
[ 4259.800340][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4259.800340][   T73]      netdev_get_by_index+0x5e/0x80
[ 4259.800340][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4259.800340][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4259.800340][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4259.800340][   T73]      ipv6_add_addr+0x411/0x2000
[ 4259.800340][   T73]      inet6_addr_add+0x30e/0xa40
[ 4259.800340][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4259.800340][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4259.800340][   T73]      netlink_rcv_skb+0x130/0x360
[ 4259.800340][   T73]      netlink_unicast+0x449/0x710
[ 4259.800340][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4259.800340][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4259.800340][   T73]      ___sys_sendmsg+0xee/0x170
[ 4259.800340][   T73]      __sys_sendmsg+0xcd/0x170
[ 4259.800340][   T73]      do_syscall_64+0xc6/0x1e0
[ 4259.800340][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4259.800340][   T73] 
[ 4259.802754][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4259.802754][   T73]      netdev_get_by_index+0x5e/0x80
[ 4259.802754][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4259.802754][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4259.802754][   T73]      ip6_route_add+0x1c/0x140
[ 4259.802754][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4259.802754][   T73]      addrconf_add_dev+0xe2/0x170
[ 4259.802754][   T73]      inet6_addr_add+0x12f/0xa40
[ 4259.802754][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4259.802754][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4259.802754][   T73]      netlink_rcv_skb+0x130/0x360
[ 4259.802754][   T73]      netlink_unicast+0x449/0x710
[ 4259.802754][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4259.802754][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4259.802754][   T73]      ___sys_sendmsg+0xee/0x170
[ 4259.802754][   T73]      __sys_sendmsg+0xcd/0x170
[ 4259.802754][   T73]      do_syscall_64+0xc6/0x1e0
[ 4259.802754][   T73] 
[ 4259.805249][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4259.805249][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4259.805249][   T73]      ipv6_find_idev+0x102/0x170
[ 4259.805249][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4259.805249][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4259.805249][   T73]      netlink_rcv_skb+0x130/0x360
[ 4259.805249][   T73]      netlink_unicast+0x449/0x710
[ 4259.805249][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4259.805249][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4259.805249][   T73]      ___sys_sendmsg+0xee/0x170
[ 4259.805249][   T73]      __sys_sendmsg+0xcd/0x170
[ 4259.805249][   T73]      do_syscall_64+0xc6/0x1e0
[ 4259.805249][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4259.805249][   T73] 
[ 4259.807144][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4259.807144][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4259.807144][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4259.807144][   T73]      ipv6_find_idev+0x102/0x170
[ 4259.807144][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4259.807144][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4259.807144][   T73]      netlink_rcv_skb+0x130/0x360
[ 4259.807144][   T73]      netlink_unicast+0x449/0x710
[ 4259.807144][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4259.807144][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4259.807144][   T73]      ___sys_sendmsg+0xee/0x170
[ 4259.807144][   T73]      __sys_sendmsg+0xcd/0x170
[ 4259.807144][   T73]      do_syscall_64+0xc6/0x1e0
[ 4259.807144][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4259.807144][   T73] 
[ 4270.047765][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4270.048264][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4270.048264][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4270.048264][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4270.048264][   T73]      fib6_nh_init+0xa22/0x1580
[ 4270.048264][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4270.048264][   T73]      ip6_route_add+0x1c/0x140
[ 4270.048264][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4270.048264][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4270.048264][   T73]      netlink_rcv_skb+0x130/0x360
[ 4270.048264][   T73]      netlink_unicast+0x449/0x710
[ 4270.048264][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4270.048264][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4270.048264][   T73]      ___sys_sendmsg+0xee/0x170
[ 4270.048264][   T73]      __sys_sendmsg+0xcd/0x170
[ 4270.048264][   T73]      do_syscall_64+0xc6/0x1e0
[ 4270.048264][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4270.048264][   T73] 
[ 4270.050216][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4270.050216][   T73]      dst_init+0x84/0x4a0
[ 4270.050216][   T73]      dst_alloc+0x97/0x150
[ 4270.050216][   T73]      ip6_dst_alloc+0x23/0x90
[ 4270.050216][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4270.050216][   T73]      ip6_pol_route+0x56f/0x840
[ 4270.050216][   T73]      fib6_rule_lookup+0x456/0x630
[ 4270.050216][   T73]      ip6_route_input+0x59c/0xa50
[ 4270.050216][   T73]      ipv6_rcv+0x397/0x810
[ 4270.050216][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4270.050216][   T73]      process_backlog+0x101/0x620
[ 4270.050216][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4270.050216][   T73]      net_rx_action+0x495/0xbe0
[ 4270.050216][   T73]      __do_softirq+0x1b5/0x7f6
[ 4270.050216][   T73] 
[ 4270.051878][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4270.051878][   T73]      netdev_get_by_index+0x5e/0x80
[ 4270.051878][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4270.051878][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4270.051878][   T73]      ip6_route_add+0x1c/0x140
[ 4270.051878][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4270.051878][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4270.051878][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4270.051878][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4270.051878][   T73]      netlink_rcv_skb+0x130/0x360
[ 4270.051878][   T73]      netlink_unicast+0x449/0x710
[ 4270.051878][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4270.051878][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4270.051878][   T73]      ___sys_sendmsg+0xee/0x170
[ 4270.051878][   T73]      __sys_sendmsg+0xcd/0x170
[ 4270.051878][   T73]      do_syscall_64+0xc6/0x1e0
[ 4270.051878][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4270.051878][   T73] 
[ 4270.053908][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4270.053908][   T73]      netdev_get_by_index+0x5e/0x80
[ 4270.053908][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4270.053908][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4270.053908][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4270.053908][   T73]      ipv6_add_addr+0x411/0x2000
[ 4270.053908][   T73]      inet6_addr_add+0x30e/0xa40
[ 4270.053908][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4270.053908][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4270.053908][   T73]      netlink_rcv_skb+0x130/0x360
[ 4270.053908][   T73]      netlink_unicast+0x449/0x710
[ 4270.053908][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4270.053908][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4270.053908][   T73]      ___sys_sendmsg+0xee/0x170
[ 4270.053908][   T73]      __sys_sendmsg+0xcd/0x170
[ 4270.053908][   T73]      do_syscall_64+0xc6/0x1e0
[ 4270.053908][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4270.053908][   T73] 
[ 4270.055926][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4270.055926][   T73]      netdev_get_by_index+0x5e/0x80
[ 4270.055926][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4270.055926][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4270.055926][   T73]      ip6_route_add+0x1c/0x140
[ 4270.055926][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4270.055926][   T73]      addrconf_add_dev+0xe2/0x170
[ 4270.055926][   T73]      inet6_addr_add+0x12f/0xa40
[ 4270.055926][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4270.055926][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4270.055926][   T73]      netlink_rcv_skb+0x130/0x360
[ 4270.055926][   T73]      netlink_unicast+0x449/0x710
[ 4270.055926][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4270.055926][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4270.055926][   T73]      ___sys_sendmsg+0xee/0x170
[ 4270.055926][   T73]      __sys_sendmsg+0xcd/0x170
[ 4270.055926][   T73]      do_syscall_64+0xc6/0x1e0
[ 4270.055926][   T73] 
[ 4270.057912][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4270.057912][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4270.057912][   T73]      ipv6_find_idev+0x102/0x170
[ 4270.057912][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4270.057912][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4270.057912][   T73]      netlink_rcv_skb+0x130/0x360
[ 4270.057912][   T73]      netlink_unicast+0x449/0x710
[ 4270.057912][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4270.057912][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4270.057912][   T73]      ___sys_sendmsg+0xee/0x170
[ 4270.057912][   T73]      __sys_sendmsg+0xcd/0x170
[ 4270.057912][   T73]      do_syscall_64+0xc6/0x1e0
[ 4270.057912][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4270.057912][   T73] 
[ 4270.059457][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4270.059457][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4270.059457][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4270.059457][   T73]      ipv6_find_idev+0x102/0x170
[ 4270.059457][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4270.059457][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4270.059457][   T73]      netlink_rcv_skb+0x130/0x360
[ 4270.059457][   T73]      netlink_unicast+0x449/0x710
[ 4270.059457][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4270.059457][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4270.059457][   T73]      ___sys_sendmsg+0xee/0x170
[ 4270.059457][   T73]      __sys_sendmsg+0xcd/0x170
[ 4270.059457][   T73]      do_syscall_64+0xc6/0x1e0
[ 4270.059457][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4270.059457][   T73] 
[ 4270.061163][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4270.061445][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4270.061445][   T73]      netdev_get_by_index+0x5e/0x80
[ 4270.061445][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4270.061445][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4270.061445][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4270.061445][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4270.061445][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4270.061445][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4270.061445][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4270.061445][   T73]      addrconf_dad_begin+0x310/0x670
[ 4270.061445][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4270.061445][   T73]      process_one_work+0x84d/0x18a0
[ 4270.061445][   T73]      worker_thread+0x587/0xd30
[ 4270.061445][   T73]      kthread+0x28a/0x350
[ 4270.061445][   T73]      ret_from_fork+0x31/0x70
[ 4270.061445][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4270.061445][   T73] 
[ 4270.063376][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4270.063376][   T73]      netdev_get_by_index+0x5e/0x80
[ 4270.063376][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4270.063376][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4270.063376][   T73]      ip6_route_add+0x1c/0x140
[ 4270.063376][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4270.063376][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4270.063376][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4270.063376][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4270.063376][   T73]      netlink_rcv_skb+0x130/0x360
[ 4270.063376][   T73]      netlink_unicast+0x449/0x710
[ 4270.063376][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4270.063376][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4270.063376][   T73]      ___sys_sendmsg+0xee/0x170
[ 4270.063376][   T73]      __sys_sendmsg+0xcd/0x170
[ 4270.063376][   T73]      do_syscall_64+0xc6/0x1e0
[ 4270.063376][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4270.063376][   T73] 
[ 4270.065399][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4270.065399][   T73]      netdev_get_by_index+0x5e/0x80
[ 4270.065399][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4270.065399][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4270.065399][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4270.065399][   T73]      ipv6_add_addr+0x411/0x2000
[ 4270.065399][   T73]      inet6_addr_add+0x30e/0xa40
[ 4270.065399][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4270.065399][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4270.065399][   T73]      netlink_rcv_skb+0x130/0x360
[ 4270.065399][   T73]      netlink_unicast+0x449/0x710
[ 4270.065399][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4270.065399][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4270.065399][   T73]      ___sys_sendmsg+0xee/0x170
[ 4270.065399][   T73]      __sys_sendmsg+0xcd/0x170
[ 4270.065399][   T73]      do_syscall_64+0xc6/0x1e0
[ 4270.065399][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4270.065399][   T73] 
[ 4270.067431][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4270.067431][   T73]      netdev_get_by_index+0x5e/0x80
[ 4270.067431][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4270.067431][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4270.067431][   T73]      ip6_route_add+0x1c/0x140
[ 4270.067431][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4270.067431][   T73]      addrconf_add_dev+0xe2/0x170
[ 4270.067431][   T73]      inet6_addr_add+0x12f/0xa40
[ 4270.067431][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4270.067431][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4270.067431][   T73]      netlink_rcv_skb+0x130/0x360
[ 4270.067431][   T73]      netlink_unicast+0x449/0x710
[ 4270.067431][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4270.067431][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4270.067431][   T73]      ___sys_sendmsg+0xee/0x170
[ 4270.067431][   T73]      __sys_sendmsg+0xcd/0x170
[ 4270.067431][   T73]      do_syscall_64+0xc6/0x1e0
[ 4270.067431][   T73] 
[ 4270.069404][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4270.069404][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4270.069404][   T73]      ipv6_find_idev+0x102/0x170
[ 4270.069404][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4270.069404][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4270.069404][   T73]      netlink_rcv_skb+0x130/0x360
[ 4270.069404][   T73]      netlink_unicast+0x449/0x710
[ 4270.069404][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4270.069404][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4270.069404][   T73]      ___sys_sendmsg+0xee/0x170
[ 4270.069404][   T73]      __sys_sendmsg+0xcd/0x170
[ 4270.069404][   T73]      do_syscall_64+0xc6/0x1e0
[ 4270.069404][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4270.069404][   T73] 
[ 4270.070951][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4270.070951][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4270.070951][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4270.070951][   T73]      ipv6_find_idev+0x102/0x170
[ 4270.070951][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4270.070951][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4270.070951][   T73]      netlink_rcv_skb+0x130/0x360
[ 4270.070951][   T73]      netlink_unicast+0x449/0x710
[ 4270.070951][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4270.070951][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4270.070951][   T73]      ___sys_sendmsg+0xee/0x170
[ 4270.070951][   T73]      __sys_sendmsg+0xcd/0x170
[ 4270.070951][   T73]      do_syscall_64+0xc6/0x1e0
[ 4270.070951][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4270.070951][   T73] 
[ 4270.072663][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4270.072942][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4270.072942][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4270.072942][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4270.072942][   T73]      fib6_nh_init+0xa22/0x1580
[ 4270.072942][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4270.072942][   T73]      ip6_route_add+0x1c/0x140
[ 4270.072942][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4270.072942][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4270.072942][   T73]      netlink_rcv_skb+0x130/0x360
[ 4270.072942][   T73]      netlink_unicast+0x449/0x710
[ 4270.072942][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4270.072942][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4270.072942][   T73]      ___sys_sendmsg+0xee/0x170
[ 4270.072942][   T73]      __sys_sendmsg+0xcd/0x170
[ 4270.072942][   T73]      do_syscall_64+0xc6/0x1e0
[ 4270.072942][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4270.072942][   T73] 
[ 4270.075028][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4270.075028][   T73]      dst_init+0x84/0x4a0
[ 4270.075028][   T73]      dst_alloc+0x97/0x150
[ 4270.075028][   T73]      ip6_dst_alloc+0x23/0x90
[ 4270.075028][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4270.075028][   T73]      ip6_pol_route+0x56f/0x840
[ 4270.075028][   T73]      fib6_rule_lookup+0x456/0x630
[ 4270.075028][   T73]      ip6_route_input+0x59c/0xa50
[ 4270.075028][   T73]      ipv6_rcv+0x397/0x810
[ 4270.075028][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4270.075028][   T73]      process_backlog+0x101/0x620
[ 4270.075028][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4270.075028][   T73]      net_rx_action+0x495/0xbe0
[ 4270.075028][   T73]      __do_softirq+0x1b5/0x7f6
[ 4270.075028][   T73] 
[ 4270.076859][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4270.076859][   T73]      netdev_get_by_index+0x5e/0x80
[ 4270.076859][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4270.076859][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4270.076859][   T73]      ip6_route_add+0x1c/0x140
[ 4270.076859][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4270.076859][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4270.076859][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4270.076859][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4270.076859][   T73]      netlink_rcv_skb+0x130/0x360
[ 4270.076859][   T73]      netlink_unicast+0x449/0x710
[ 4270.076859][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4270.076859][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4270.076859][   T73]      ___sys_sendmsg+0xee/0x170
[ 4270.076859][   T73]      __sys_sendmsg+0xcd/0x170
[ 4270.076859][   T73]      do_syscall_64+0xc6/0x1e0
[ 4270.076859][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4270.076859][   T73] 
[ 4270.079104][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4270.079104][   T73]      netdev_get_by_index+0x5e/0x80
[ 4270.079104][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4270.079104][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4270.079104][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4270.079104][   T73]      ipv6_add_addr+0x411/0x2000
[ 4270.079104][   T73]      inet6_addr_add+0x30e/0xa40
[ 4270.079104][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4270.079104][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4270.079104][   T73]      netlink_rcv_skb+0x130/0x360
[ 4270.079104][   T73]      netlink_unicast+0x449/0x710
[ 4270.079104][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4270.079104][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4270.079104][   T73]      ___sys_sendmsg+0xee/0x170
[ 4270.079104][   T73]      __sys_sendmsg+0xcd/0x170
[ 4270.079104][   T73]      do_syscall_64+0xc6/0x1e0
[ 4270.079104][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4270.079104][   T73] 
[ 4270.081354][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4270.081354][   T73]      netdev_get_by_index+0x5e/0x80
[ 4270.081354][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4270.081354][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4270.081354][   T73]      ip6_route_add+0x1c/0x140
[ 4270.081354][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4270.081354][   T73]      addrconf_add_dev+0xe2/0x170
[ 4270.081354][   T73]      inet6_addr_add+0x12f/0xa40
[ 4270.081354][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4270.081354][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4270.081354][   T73]      netlink_rcv_skb+0x130/0x360
[ 4270.081354][   T73]      netlink_unicast+0x449/0x710
[ 4270.081354][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4270.081354][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4270.081354][   T73]      ___sys_sendmsg+0xee/0x170
[ 4270.081354][   T73]      __sys_sendmsg+0xcd/0x170
[ 4270.081354][   T73]      do_syscall_64+0xc6/0x1e0
[ 4270.081354][   T73] 
[ 4270.083571][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4270.083571][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4270.083571][   T73]      ipv6_find_idev+0x102/0x170
[ 4270.083571][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4270.083571][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4270.083571][   T73]      netlink_rcv_skb+0x130/0x360
[ 4270.083571][   T73]      netlink_unicast+0x449/0x710
[ 4270.083571][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4270.083571][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4270.083571][   T73]      ___sys_sendmsg+0xee/0x170
[ 4270.083571][   T73]      __sys_sendmsg+0xcd/0x170
[ 4270.083571][   T73]      do_syscall_64+0xc6/0x1e0
[ 4270.083571][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4270.083571][   T73] 
[ 4270.085301][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4270.085301][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4270.085301][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4270.085301][   T73]      ipv6_find_idev+0x102/0x170
[ 4270.085301][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4270.085301][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4270.085301][   T73]      netlink_rcv_skb+0x130/0x360
[ 4270.085301][   T73]      netlink_unicast+0x449/0x710
[ 4270.085301][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4270.085301][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4270.085301][   T73]      ___sys_sendmsg+0xee/0x170
[ 4270.085301][   T73]      __sys_sendmsg+0xcd/0x170
[ 4270.085301][   T73]      do_syscall_64+0xc6/0x1e0
[ 4270.085301][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4270.085301][   T73] 
[ 4270.087166][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4270.087517][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4270.087517][   T73]      netdev_get_by_index+0x5e/0x80
[ 4270.087517][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4270.087517][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4270.087517][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4270.087517][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4270.087517][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4270.087517][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4270.087517][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4270.087517][   T73]      addrconf_dad_begin+0x310/0x670
[ 4270.087517][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4270.087517][   T73]      process_one_work+0x84d/0x18a0
[ 4270.087517][   T73]      worker_thread+0x587/0xd30
[ 4270.087517][   T73]      kthread+0x28a/0x350
[ 4270.087517][   T73]      ret_from_fork+0x31/0x70
[ 4270.087517][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4270.087517][   T73] 
[ 4270.089554][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4270.089554][   T73]      netdev_get_by_index+0x5e/0x80
[ 4270.089554][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4270.089554][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4270.089554][   T73]      ip6_route_add+0x1c/0x140
[ 4270.089554][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4270.089554][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4270.089554][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4270.089554][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4270.089554][   T73]      netlink_rcv_skb+0x130/0x360
[ 4270.089554][   T73]      netlink_unicast+0x449/0x710
[ 4270.089554][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4270.089554][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4270.089554][   T73]      ___sys_sendmsg+0xee/0x170
[ 4270.089554][   T73]      __sys_sendmsg+0xcd/0x170
[ 4270.089554][   T73]      do_syscall_64+0xc6/0x1e0
[ 4270.089554][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4270.089554][   T73] 
[ 4270.091875][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4270.091875][   T73]      netdev_get_by_index+0x5e/0x80
[ 4270.091875][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4270.091875][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4270.091875][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4270.091875][   T73]      ipv6_add_addr+0x411/0x2000
[ 4270.091875][   T73]      inet6_addr_add+0x30e/0xa40
[ 4270.091875][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4270.091875][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4270.091875][   T73]      netlink_rcv_skb+0x130/0x360
[ 4270.091875][   T73]      netlink_unicast+0x449/0x710
[ 4270.091875][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4270.091875][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4270.091875][   T73]      ___sys_sendmsg+0xee/0x170
[ 4270.091875][   T73]      __sys_sendmsg+0xcd/0x170
[ 4270.091875][   T73]      do_syscall_64+0xc6/0x1e0
[ 4270.091875][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4270.091875][   T73] 
[ 4270.094137][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4270.094137][   T73]      netdev_get_by_index+0x5e/0x80
[ 4270.094137][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4270.094137][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4270.094137][   T73]      ip6_route_add+0x1c/0x140
[ 4270.094137][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4270.094137][   T73]      addrconf_add_dev+0xe2/0x170
[ 4270.094137][   T73]      inet6_addr_add+0x12f/0xa40
[ 4270.094137][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4270.094137][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4270.094137][   T73]      netlink_rcv_skb+0x130/0x360
[ 4270.094137][   T73]      netlink_unicast+0x449/0x710
[ 4270.094137][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4270.094137][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4270.094137][   T73]      ___sys_sendmsg+0xee/0x170
[ 4270.094137][   T73]      __sys_sendmsg+0xcd/0x170
[ 4270.094137][   T73]      do_syscall_64+0xc6/0x1e0
[ 4270.094137][   T73] 
[ 4270.096365][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4270.096365][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4270.096365][   T73]      ipv6_find_idev+0x102/0x170
[ 4270.096365][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4270.096365][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4270.096365][   T73]      netlink_rcv_skb+0x130/0x360
[ 4270.096365][   T73]      netlink_unicast+0x449/0x710
[ 4270.096365][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4270.096365][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4270.096365][   T73]      ___sys_sendmsg+0xee/0x170
[ 4270.096365][   T73]      __sys_sendmsg+0xcd/0x170
[ 4270.096365][   T73]      do_syscall_64+0xc6/0x1e0
[ 4270.096365][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4270.096365][   T73] 
[ 4270.098103][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4270.098103][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4270.098103][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4270.098103][   T73]      ipv6_find_idev+0x102/0x170
[ 4270.098103][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4270.098103][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4270.098103][   T73]      netlink_rcv_skb+0x130/0x360
[ 4270.098103][   T73]      netlink_unicast+0x449/0x710
[ 4270.098103][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4270.098103][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4270.098103][   T73]      ___sys_sendmsg+0xee/0x170
[ 4270.098103][   T73]      __sys_sendmsg+0xcd/0x170
[ 4270.098103][   T73]      do_syscall_64+0xc6/0x1e0
[ 4270.098103][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4270.098103][   T73] 
[ 4280.335787][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4280.336246][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4280.336246][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4280.336246][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4280.336246][   T73]      fib6_nh_init+0xa22/0x1580
[ 4280.336246][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4280.336246][   T73]      ip6_route_add+0x1c/0x140
[ 4280.336246][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4280.336246][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4280.336246][   T73]      netlink_rcv_skb+0x130/0x360
[ 4280.336246][   T73]      netlink_unicast+0x449/0x710
[ 4280.336246][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4280.336246][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4280.336246][   T73]      ___sys_sendmsg+0xee/0x170
[ 4280.336246][   T73]      __sys_sendmsg+0xcd/0x170
[ 4280.336246][   T73]      do_syscall_64+0xc6/0x1e0
[ 4280.336246][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4280.336246][   T73] 
[ 4280.338150][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4280.338150][   T73]      dst_init+0x84/0x4a0
[ 4280.338150][   T73]      dst_alloc+0x97/0x150
[ 4280.338150][   T73]      ip6_dst_alloc+0x23/0x90
[ 4280.338150][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4280.338150][   T73]      ip6_pol_route+0x56f/0x840
[ 4280.338150][   T73]      fib6_rule_lookup+0x456/0x630
[ 4280.338150][   T73]      ip6_route_input+0x59c/0xa50
[ 4280.338150][   T73]      ipv6_rcv+0x397/0x810
[ 4280.338150][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4280.338150][   T73]      process_backlog+0x101/0x620
[ 4280.338150][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4280.338150][   T73]      net_rx_action+0x495/0xbe0
[ 4280.338150][   T73]      __do_softirq+0x1b5/0x7f6
[ 4280.338150][   T73] 
[ 4280.339814][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4280.339814][   T73]      netdev_get_by_index+0x5e/0x80
[ 4280.339814][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4280.339814][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4280.339814][   T73]      ip6_route_add+0x1c/0x140
[ 4280.339814][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4280.339814][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4280.339814][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4280.339814][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4280.339814][   T73]      netlink_rcv_skb+0x130/0x360
[ 4280.339814][   T73]      netlink_unicast+0x449/0x710
[ 4280.339814][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4280.339814][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4280.339814][   T73]      ___sys_sendmsg+0xee/0x170
[ 4280.339814][   T73]      __sys_sendmsg+0xcd/0x170
[ 4280.339814][   T73]      do_syscall_64+0xc6/0x1e0
[ 4280.339814][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4280.339814][   T73] 
[ 4280.341835][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4280.341835][   T73]      netdev_get_by_index+0x5e/0x80
[ 4280.341835][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4280.341835][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4280.341835][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4280.341835][   T73]      ipv6_add_addr+0x411/0x2000
[ 4280.341835][   T73]      inet6_addr_add+0x30e/0xa40
[ 4280.341835][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4280.341835][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4280.341835][   T73]      netlink_rcv_skb+0x130/0x360
[ 4280.341835][   T73]      netlink_unicast+0x449/0x710
[ 4280.341835][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4280.341835][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4280.341835][   T73]      ___sys_sendmsg+0xee/0x170
[ 4280.341835][   T73]      __sys_sendmsg+0xcd/0x170
[ 4280.341835][   T73]      do_syscall_64+0xc6/0x1e0
[ 4280.341835][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4280.341835][   T73] 
[ 4280.343843][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4280.343843][   T73]      netdev_get_by_index+0x5e/0x80
[ 4280.343843][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4280.343843][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4280.343843][   T73]      ip6_route_add+0x1c/0x140
[ 4280.343843][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4280.343843][   T73]      addrconf_add_dev+0xe2/0x170
[ 4280.343843][   T73]      inet6_addr_add+0x12f/0xa40
[ 4280.343843][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4280.343843][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4280.343843][   T73]      netlink_rcv_skb+0x130/0x360
[ 4280.343843][   T73]      netlink_unicast+0x449/0x710
[ 4280.343843][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4280.343843][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4280.343843][   T73]      ___sys_sendmsg+0xee/0x170
[ 4280.343843][   T73]      __sys_sendmsg+0xcd/0x170
[ 4280.343843][   T73]      do_syscall_64+0xc6/0x1e0
[ 4280.343843][   T73] 
[ 4280.345844][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4280.345844][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4280.345844][   T73]      ipv6_find_idev+0x102/0x170
[ 4280.345844][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4280.345844][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4280.345844][   T73]      netlink_rcv_skb+0x130/0x360
[ 4280.345844][   T73]      netlink_unicast+0x449/0x710
[ 4280.345844][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4280.345844][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4280.345844][   T73]      ___sys_sendmsg+0xee/0x170
[ 4280.345844][   T73]      __sys_sendmsg+0xcd/0x170
[ 4280.345844][   T73]      do_syscall_64+0xc6/0x1e0
[ 4280.345844][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4280.345844][   T73] 
[ 4280.347413][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4280.347413][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4280.347413][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4280.347413][   T73]      ipv6_find_idev+0x102/0x170
[ 4280.347413][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4280.347413][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4280.347413][   T73]      netlink_rcv_skb+0x130/0x360
[ 4280.347413][   T73]      netlink_unicast+0x449/0x710
[ 4280.347413][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4280.347413][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4280.347413][   T73]      ___sys_sendmsg+0xee/0x170
[ 4280.347413][   T73]      __sys_sendmsg+0xcd/0x170
[ 4280.347413][   T73]      do_syscall_64+0xc6/0x1e0
[ 4280.347413][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4280.347413][   T73] 
[ 4280.349123][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4280.349403][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4280.349403][   T73]      netdev_get_by_index+0x5e/0x80
[ 4280.349403][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4280.349403][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4280.349403][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4280.349403][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4280.349403][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4280.349403][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4280.349403][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4280.349403][   T73]      addrconf_dad_begin+0x310/0x670
[ 4280.349403][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4280.349403][   T73]      process_one_work+0x84d/0x18a0
[ 4280.349403][   T73]      worker_thread+0x587/0xd30
[ 4280.349403][   T73]      kthread+0x28a/0x350
[ 4280.349403][   T73]      ret_from_fork+0x31/0x70
[ 4280.349403][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4280.349403][   T73] 
[ 4280.351335][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4280.351335][   T73]      netdev_get_by_index+0x5e/0x80
[ 4280.351335][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4280.351335][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4280.351335][   T73]      ip6_route_add+0x1c/0x140
[ 4280.351335][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4280.351335][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4280.351335][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4280.351335][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4280.351335][   T73]      netlink_rcv_skb+0x130/0x360
[ 4280.351335][   T73]      netlink_unicast+0x449/0x710
[ 4280.351335][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4280.351335][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4280.351335][   T73]      ___sys_sendmsg+0xee/0x170
[ 4280.351335][   T73]      __sys_sendmsg+0xcd/0x170
[ 4280.351335][   T73]      do_syscall_64+0xc6/0x1e0
[ 4280.351335][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4280.351335][   T73] 
[ 4280.353348][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4280.353348][   T73]      netdev_get_by_index+0x5e/0x80
[ 4280.353348][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4280.353348][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4280.353348][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4280.353348][   T73]      ipv6_add_addr+0x411/0x2000
[ 4280.353348][   T73]      inet6_addr_add+0x30e/0xa40
[ 4280.353348][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4280.353348][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4280.353348][   T73]      netlink_rcv_skb+0x130/0x360
[ 4280.353348][   T73]      netlink_unicast+0x449/0x710
[ 4280.353348][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4280.353348][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4280.353348][   T73]      ___sys_sendmsg+0xee/0x170
[ 4280.353348][   T73]      __sys_sendmsg+0xcd/0x170
[ 4280.353348][   T73]      do_syscall_64+0xc6/0x1e0
[ 4280.353348][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4280.353348][   T73] 
[ 4280.355370][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4280.355370][   T73]      netdev_get_by_index+0x5e/0x80
[ 4280.355370][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4280.355370][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4280.355370][   T73]      ip6_route_add+0x1c/0x140
[ 4280.355370][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4280.355370][   T73]      addrconf_add_dev+0xe2/0x170
[ 4280.355370][   T73]      inet6_addr_add+0x12f/0xa40
[ 4280.355370][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4280.355370][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4280.355370][   T73]      netlink_rcv_skb+0x130/0x360
[ 4280.355370][   T73]      netlink_unicast+0x449/0x710
[ 4280.355370][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4280.355370][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4280.355370][   T73]      ___sys_sendmsg+0xee/0x170
[ 4280.355370][   T73]      __sys_sendmsg+0xcd/0x170
[ 4280.355370][   T73]      do_syscall_64+0xc6/0x1e0
[ 4280.355370][   T73] 
[ 4280.357350][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4280.357350][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4280.357350][   T73]      ipv6_find_idev+0x102/0x170
[ 4280.357350][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4280.357350][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4280.357350][   T73]      netlink_rcv_skb+0x130/0x360
[ 4280.357350][   T73]      netlink_unicast+0x449/0x710
[ 4280.357350][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4280.357350][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4280.357350][   T73]      ___sys_sendmsg+0xee/0x170
[ 4280.357350][   T73]      __sys_sendmsg+0xcd/0x170
[ 4280.357350][   T73]      do_syscall_64+0xc6/0x1e0
[ 4280.357350][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4280.357350][   T73] 
[ 4280.358899][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4280.358899][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4280.358899][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4280.358899][   T73]      ipv6_find_idev+0x102/0x170
[ 4280.358899][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4280.358899][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4280.358899][   T73]      netlink_rcv_skb+0x130/0x360
[ 4280.358899][   T73]      netlink_unicast+0x449/0x710
[ 4280.358899][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4280.358899][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4280.358899][   T73]      ___sys_sendmsg+0xee/0x170
[ 4280.358899][   T73]      __sys_sendmsg+0xcd/0x170
[ 4280.358899][   T73]      do_syscall_64+0xc6/0x1e0
[ 4280.358899][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4280.358899][   T73] 
[ 4280.360635][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4280.360926][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4280.360926][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4280.360926][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4280.360926][   T73]      fib6_nh_init+0xa22/0x1580
[ 4280.360926][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4280.360926][   T73]      ip6_route_add+0x1c/0x140
[ 4280.360926][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4280.360926][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4280.360926][   T73]      netlink_rcv_skb+0x130/0x360
[ 4280.360926][   T73]      netlink_unicast+0x449/0x710
[ 4280.360926][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4280.360926][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4280.360926][   T73]      ___sys_sendmsg+0xee/0x170
[ 4280.360926][   T73]      __sys_sendmsg+0xcd/0x170
[ 4280.360926][   T73]      do_syscall_64+0xc6/0x1e0
[ 4280.360926][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4280.360926][   T73] 
[ 4280.363017][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4280.363017][   T73]      dst_init+0x84/0x4a0
[ 4280.363017][   T73]      dst_alloc+0x97/0x150
[ 4280.363017][   T73]      ip6_dst_alloc+0x23/0x90
[ 4280.363017][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4280.363017][   T73]      ip6_pol_route+0x56f/0x840
[ 4280.363017][   T73]      fib6_rule_lookup+0x456/0x630
[ 4280.363017][   T73]      ip6_route_input+0x59c/0xa50
[ 4280.363017][   T73]      ipv6_rcv+0x397/0x810
[ 4280.363017][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4280.363017][   T73]      process_backlog+0x101/0x620
[ 4280.363017][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4280.363017][   T73]      net_rx_action+0x495/0xbe0
[ 4280.363017][   T73]      __do_softirq+0x1b5/0x7f6
[ 4280.363017][   T73] 
[ 4280.364915][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4280.364915][   T73]      netdev_get_by_index+0x5e/0x80
[ 4280.364915][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4280.364915][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4280.364915][   T73]      ip6_route_add+0x1c/0x140
[ 4280.364915][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4280.364915][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4280.364915][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4280.364915][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4280.364915][   T73]      netlink_rcv_skb+0x130/0x360
[ 4280.364915][   T73]      netlink_unicast+0x449/0x710
[ 4280.364915][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4280.364915][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4280.364915][   T73]      ___sys_sendmsg+0xee/0x170
[ 4280.364915][   T73]      __sys_sendmsg+0xcd/0x170
[ 4280.364915][   T73]      do_syscall_64+0xc6/0x1e0
[ 4280.364915][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4280.364915][   T73] 
[ 4280.367184][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4280.367184][   T73]      netdev_get_by_index+0x5e/0x80
[ 4280.367184][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4280.367184][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4280.367184][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4280.367184][   T73]      ipv6_add_addr+0x411/0x2000
[ 4280.367184][   T73]      inet6_addr_add+0x30e/0xa40
[ 4280.367184][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4280.367184][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4280.367184][   T73]      netlink_rcv_skb+0x130/0x360
[ 4280.367184][   T73]      netlink_unicast+0x449/0x710
[ 4280.367184][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4280.367184][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4280.367184][   T73]      ___sys_sendmsg+0xee/0x170
[ 4280.367184][   T73]      __sys_sendmsg+0xcd/0x170
[ 4280.367184][   T73]      do_syscall_64+0xc6/0x1e0
[ 4280.367184][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4280.367184][   T73] 
[ 4280.369383][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4280.369383][   T73]      netdev_get_by_index+0x5e/0x80
[ 4280.369383][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4280.369383][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4280.369383][   T73]      ip6_route_add+0x1c/0x140
[ 4280.369383][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4280.369383][   T73]      addrconf_add_dev+0xe2/0x170
[ 4280.369383][   T73]      inet6_addr_add+0x12f/0xa40
[ 4280.369383][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4280.369383][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4280.369383][   T73]      netlink_rcv_skb+0x130/0x360
[ 4280.369383][   T73]      netlink_unicast+0x449/0x710
[ 4280.369383][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4280.369383][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4280.369383][   T73]      ___sys_sendmsg+0xee/0x170
[ 4280.369383][   T73]      __sys_sendmsg+0xcd/0x170
[ 4280.369383][   T73]      do_syscall_64+0xc6/0x1e0
[ 4280.369383][   T73] 
[ 4280.371546][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4280.371546][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4280.371546][   T73]      ipv6_find_idev+0x102/0x170
[ 4280.371546][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4280.371546][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4280.371546][   T73]      netlink_rcv_skb+0x130/0x360
[ 4280.371546][   T73]      netlink_unicast+0x449/0x710
[ 4280.371546][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4280.371546][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4280.371546][   T73]      ___sys_sendmsg+0xee/0x170
[ 4280.371546][   T73]      __sys_sendmsg+0xcd/0x170
[ 4280.371546][   T73]      do_syscall_64+0xc6/0x1e0
[ 4280.371546][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4280.371546][   T73] 
[ 4280.373338][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4280.373338][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4280.373338][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4280.373338][   T73]      ipv6_find_idev+0x102/0x170
[ 4280.373338][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4280.373338][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4280.373338][   T73]      netlink_rcv_skb+0x130/0x360
[ 4280.373338][   T73]      netlink_unicast+0x449/0x710
[ 4280.373338][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4280.373338][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4280.373338][   T73]      ___sys_sendmsg+0xee/0x170
[ 4280.373338][   T73]      __sys_sendmsg+0xcd/0x170
[ 4280.373338][   T73]      do_syscall_64+0xc6/0x1e0
[ 4280.373338][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4280.373338][   T73] 
[ 4280.375214][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4280.375552][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4280.375552][   T73]      netdev_get_by_index+0x5e/0x80
[ 4280.375552][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4280.375552][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4280.375552][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4280.375552][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4280.375552][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4280.375552][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4280.375552][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4280.375552][   T73]      addrconf_dad_begin+0x310/0x670
[ 4280.375552][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4280.375552][   T73]      process_one_work+0x84d/0x18a0
[ 4280.375552][   T73]      worker_thread+0x587/0xd30
[ 4280.375552][   T73]      kthread+0x28a/0x350
[ 4280.375552][   T73]      ret_from_fork+0x31/0x70
[ 4280.375552][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4280.375552][   T73] 
[ 4280.377618][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4280.377618][   T73]      netdev_get_by_index+0x5e/0x80
[ 4280.377618][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4280.377618][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4280.377618][   T73]      ip6_route_add+0x1c/0x140
[ 4280.377618][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4280.377618][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4280.377618][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4280.377618][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4280.377618][   T73]      netlink_rcv_skb+0x130/0x360
[ 4280.377618][   T73]      netlink_unicast+0x449/0x710
[ 4280.377618][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4280.377618][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4280.377618][   T73]      ___sys_sendmsg+0xee/0x170
[ 4280.377618][   T73]      __sys_sendmsg+0xcd/0x170
[ 4280.377618][   T73]      do_syscall_64+0xc6/0x1e0
[ 4280.377618][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4280.377618][   T73] 
[ 4280.379871][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4280.379871][   T73]      netdev_get_by_index+0x5e/0x80
[ 4280.379871][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4280.379871][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4280.379871][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4280.379871][   T73]      ipv6_add_addr+0x411/0x2000
[ 4280.379871][   T73]      inet6_addr_add+0x30e/0xa40
[ 4280.379871][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4280.379871][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4280.379871][   T73]      netlink_rcv_skb+0x130/0x360
[ 4280.379871][   T73]      netlink_unicast+0x449/0x710
[ 4280.379871][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4280.379871][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4280.379871][   T73]      ___sys_sendmsg+0xee/0x170
[ 4280.379871][   T73]      __sys_sendmsg+0xcd/0x170
[ 4280.379871][   T73]      do_syscall_64+0xc6/0x1e0
[ 4280.379871][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4280.379871][   T73] 
[ 4280.382139][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4280.382139][   T73]      netdev_get_by_index+0x5e/0x80
[ 4280.382139][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4280.382139][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4280.382139][   T73]      ip6_route_add+0x1c/0x140
[ 4280.382139][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4280.382139][   T73]      addrconf_add_dev+0xe2/0x170
[ 4280.382139][   T73]      inet6_addr_add+0x12f/0xa40
[ 4280.382139][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4280.382139][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4280.382139][   T73]      netlink_rcv_skb+0x130/0x360
[ 4280.382139][   T73]      netlink_unicast+0x449/0x710
[ 4280.382139][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4280.382139][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4280.382139][   T73]      ___sys_sendmsg+0xee/0x170
[ 4280.382139][   T73]      __sys_sendmsg+0xcd/0x170
[ 4280.382139][   T73]      do_syscall_64+0xc6/0x1e0
[ 4280.382139][   T73] 
[ 4280.384431][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4280.384431][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4280.384431][   T73]      ipv6_find_idev+0x102/0x170
[ 4280.384431][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4280.384431][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4280.384431][   T73]      netlink_rcv_skb+0x130/0x360
[ 4280.384431][   T73]      netlink_unicast+0x449/0x710
[ 4280.384431][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4280.384431][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4280.384431][   T73]      ___sys_sendmsg+0xee/0x170
[ 4280.384431][   T73]      __sys_sendmsg+0xcd/0x170
[ 4280.384431][   T73]      do_syscall_64+0xc6/0x1e0
[ 4280.384431][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4280.384431][   T73] 
[ 4280.386170][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4280.386170][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4280.386170][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4280.386170][   T73]      ipv6_find_idev+0x102/0x170
[ 4280.386170][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4280.386170][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4280.386170][   T73]      netlink_rcv_skb+0x130/0x360
[ 4280.386170][   T73]      netlink_unicast+0x449/0x710
[ 4280.386170][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4280.386170][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4280.386170][   T73]      ___sys_sendmsg+0xee/0x170
[ 4280.386170][   T73]      __sys_sendmsg+0xcd/0x170
[ 4280.386170][   T73]      do_syscall_64+0xc6/0x1e0
[ 4280.386170][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4280.386170][   T73] 
[ 4290.623760][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4290.624285][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4290.624285][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4290.624285][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4290.624285][   T73]      fib6_nh_init+0xa22/0x1580
[ 4290.624285][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4290.624285][   T73]      ip6_route_add+0x1c/0x140
[ 4290.624285][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4290.624285][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4290.624285][   T73]      netlink_rcv_skb+0x130/0x360
[ 4290.624285][   T73]      netlink_unicast+0x449/0x710
[ 4290.624285][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4290.624285][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4290.624285][   T73]      ___sys_sendmsg+0xee/0x170
[ 4290.624285][   T73]      __sys_sendmsg+0xcd/0x170
[ 4290.624285][   T73]      do_syscall_64+0xc6/0x1e0
[ 4290.624285][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4290.624285][   T73] 
[ 4290.626200][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4290.626200][   T73]      dst_init+0x84/0x4a0
[ 4290.626200][   T73]      dst_alloc+0x97/0x150
[ 4290.626200][   T73]      ip6_dst_alloc+0x23/0x90
[ 4290.626200][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4290.626200][   T73]      ip6_pol_route+0x56f/0x840
[ 4290.626200][   T73]      fib6_rule_lookup+0x456/0x630
[ 4290.626200][   T73]      ip6_route_input+0x59c/0xa50
[ 4290.626200][   T73]      ipv6_rcv+0x397/0x810
[ 4290.626200][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4290.626200][   T73]      process_backlog+0x101/0x620
[ 4290.626200][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4290.626200][   T73]      net_rx_action+0x495/0xbe0
[ 4290.626200][   T73]      __do_softirq+0x1b5/0x7f6
[ 4290.626200][   T73] 
[ 4290.627844][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4290.627844][   T73]      netdev_get_by_index+0x5e/0x80
[ 4290.627844][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4290.627844][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4290.627844][   T73]      ip6_route_add+0x1c/0x140
[ 4290.627844][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4290.627844][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4290.627844][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4290.627844][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4290.627844][   T73]      netlink_rcv_skb+0x130/0x360
[ 4290.627844][   T73]      netlink_unicast+0x449/0x710
[ 4290.627844][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4290.627844][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4290.627844][   T73]      ___sys_sendmsg+0xee/0x170
[ 4290.627844][   T73]      __sys_sendmsg+0xcd/0x170
[ 4290.627844][   T73]      do_syscall_64+0xc6/0x1e0
[ 4290.627844][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4290.627844][   T73] 
[ 4290.629840][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4290.629840][   T73]      netdev_get_by_index+0x5e/0x80
[ 4290.629840][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4290.629840][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4290.629840][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4290.629840][   T73]      ipv6_add_addr+0x411/0x2000
[ 4290.629840][   T73]      inet6_addr_add+0x30e/0xa40
[ 4290.629840][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4290.629840][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4290.629840][   T73]      netlink_rcv_skb+0x130/0x360
[ 4290.629840][   T73]      netlink_unicast+0x449/0x710
[ 4290.629840][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4290.629840][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4290.629840][   T73]      ___sys_sendmsg+0xee/0x170
[ 4290.629840][   T73]      __sys_sendmsg+0xcd/0x170
[ 4290.629840][   T73]      do_syscall_64+0xc6/0x1e0
[ 4290.629840][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4290.629840][   T73] 
[ 4290.631827][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4290.631827][   T73]      netdev_get_by_index+0x5e/0x80
[ 4290.631827][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4290.631827][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4290.631827][   T73]      ip6_route_add+0x1c/0x140
[ 4290.631827][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4290.631827][   T73]      addrconf_add_dev+0xe2/0x170
[ 4290.631827][   T73]      inet6_addr_add+0x12f/0xa40
[ 4290.631827][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4290.631827][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4290.631827][   T73]      netlink_rcv_skb+0x130/0x360
[ 4290.631827][   T73]      netlink_unicast+0x449/0x710
[ 4290.631827][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4290.631827][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4290.631827][   T73]      ___sys_sendmsg+0xee/0x170
[ 4290.631827][   T73]      __sys_sendmsg+0xcd/0x170
[ 4290.631827][   T73]      do_syscall_64+0xc6/0x1e0
[ 4290.631827][   T73] 
[ 4290.633786][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4290.633786][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4290.633786][   T73]      ipv6_find_idev+0x102/0x170
[ 4290.633786][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4290.633786][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4290.633786][   T73]      netlink_rcv_skb+0x130/0x360
[ 4290.633786][   T73]      netlink_unicast+0x449/0x710
[ 4290.633786][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4290.633786][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4290.633786][   T73]      ___sys_sendmsg+0xee/0x170
[ 4290.633786][   T73]      __sys_sendmsg+0xcd/0x170
[ 4290.633786][   T73]      do_syscall_64+0xc6/0x1e0
[ 4290.633786][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4290.633786][   T73] 
[ 4290.635352][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4290.635352][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4290.635352][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4290.635352][   T73]      ipv6_find_idev+0x102/0x170
[ 4290.635352][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4290.635352][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4290.635352][   T73]      netlink_rcv_skb+0x130/0x360
[ 4290.635352][   T73]      netlink_unicast+0x449/0x710
[ 4290.635352][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4290.635352][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4290.635352][   T73]      ___sys_sendmsg+0xee/0x170
[ 4290.635352][   T73]      __sys_sendmsg+0xcd/0x170
[ 4290.635352][   T73]      do_syscall_64+0xc6/0x1e0
[ 4290.635352][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4290.635352][   T73] 
[ 4290.637038][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4290.637320][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4290.637320][   T73]      netdev_get_by_index+0x5e/0x80
[ 4290.637320][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4290.637320][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4290.637320][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4290.637320][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4290.637320][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4290.637320][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4290.637320][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4290.637320][   T73]      addrconf_dad_begin+0x310/0x670
[ 4290.637320][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4290.637320][   T73]      process_one_work+0x84d/0x18a0
[ 4290.637320][   T73]      worker_thread+0x587/0xd30
[ 4290.637320][   T73]      kthread+0x28a/0x350
[ 4290.637320][   T73]      ret_from_fork+0x31/0x70
[ 4290.637320][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4290.637320][   T73] 
[ 4290.639231][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4290.639231][   T73]      netdev_get_by_index+0x5e/0x80
[ 4290.639231][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4290.639231][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4290.639231][   T73]      ip6_route_add+0x1c/0x140
[ 4290.639231][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4290.639231][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4290.639231][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4290.639231][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4290.639231][   T73]      netlink_rcv_skb+0x130/0x360
[ 4290.639231][   T73]      netlink_unicast+0x449/0x710
[ 4290.639231][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4290.639231][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4290.639231][   T73]      ___sys_sendmsg+0xee/0x170
[ 4290.639231][   T73]      __sys_sendmsg+0xcd/0x170
[ 4290.639231][   T73]      do_syscall_64+0xc6/0x1e0
[ 4290.639231][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4290.639231][   T73] 
[ 4290.641238][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4290.641238][   T73]      netdev_get_by_index+0x5e/0x80
[ 4290.641238][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4290.641238][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4290.641238][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4290.641238][   T73]      ipv6_add_addr+0x411/0x2000
[ 4290.641238][   T73]      inet6_addr_add+0x30e/0xa40
[ 4290.641238][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4290.641238][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4290.641238][   T73]      netlink_rcv_skb+0x130/0x360
[ 4290.641238][   T73]      netlink_unicast+0x449/0x710
[ 4290.641238][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4290.641238][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4290.641238][   T73]      ___sys_sendmsg+0xee/0x170
[ 4290.641238][   T73]      __sys_sendmsg+0xcd/0x170
[ 4290.641238][   T73]      do_syscall_64+0xc6/0x1e0
[ 4290.641238][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4290.641238][   T73] 
[ 4290.643219][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4290.643219][   T73]      netdev_get_by_index+0x5e/0x80
[ 4290.643219][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4290.643219][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4290.643219][   T73]      ip6_route_add+0x1c/0x140
[ 4290.643219][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4290.643219][   T73]      addrconf_add_dev+0xe2/0x170
[ 4290.643219][   T73]      inet6_addr_add+0x12f/0xa40
[ 4290.643219][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4290.643219][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4290.643219][   T73]      netlink_rcv_skb+0x130/0x360
[ 4290.643219][   T73]      netlink_unicast+0x449/0x710
[ 4290.643219][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4290.643219][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4290.643219][   T73]      ___sys_sendmsg+0xee/0x170
[ 4290.643219][   T73]      __sys_sendmsg+0xcd/0x170
[ 4290.643219][   T73]      do_syscall_64+0xc6/0x1e0
[ 4290.643219][   T73] 
[ 4290.645174][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4290.645174][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4290.645174][   T73]      ipv6_find_idev+0x102/0x170
[ 4290.645174][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4290.645174][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4290.645174][   T73]      netlink_rcv_skb+0x130/0x360
[ 4290.645174][   T73]      netlink_unicast+0x449/0x710
[ 4290.645174][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4290.645174][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4290.645174][   T73]      ___sys_sendmsg+0xee/0x170
[ 4290.645174][   T73]      __sys_sendmsg+0xcd/0x170
[ 4290.645174][   T73]      do_syscall_64+0xc6/0x1e0
[ 4290.645174][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4290.645174][   T73] 
[ 4290.646717][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4290.646717][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4290.646717][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4290.646717][   T73]      ipv6_find_idev+0x102/0x170
[ 4290.646717][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4290.646717][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4290.646717][   T73]      netlink_rcv_skb+0x130/0x360
[ 4290.646717][   T73]      netlink_unicast+0x449/0x710
[ 4290.646717][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4290.646717][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4290.646717][   T73]      ___sys_sendmsg+0xee/0x170
[ 4290.646717][   T73]      __sys_sendmsg+0xcd/0x170
[ 4290.646717][   T73]      do_syscall_64+0xc6/0x1e0
[ 4290.646717][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4290.646717][   T73] 
[ 4290.648399][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4290.648678][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4290.648678][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4290.648678][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4290.648678][   T73]      fib6_nh_init+0xa22/0x1580
[ 4290.648678][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4290.648678][   T73]      ip6_route_add+0x1c/0x140
[ 4290.648678][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4290.648678][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4290.648678][   T73]      netlink_rcv_skb+0x130/0x360
[ 4290.648678][   T73]      netlink_unicast+0x449/0x710
[ 4290.648678][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4290.648678][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4290.648678][   T73]      ___sys_sendmsg+0xee/0x170
[ 4290.648678][   T73]      __sys_sendmsg+0xcd/0x170
[ 4290.648678][   T73]      do_syscall_64+0xc6/0x1e0
[ 4290.648678][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4290.648678][   T73] 
[ 4290.650735][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4290.650735][   T73]      dst_init+0x84/0x4a0
[ 4290.650735][   T73]      dst_alloc+0x97/0x150
[ 4290.650735][   T73]      ip6_dst_alloc+0x23/0x90
[ 4290.650735][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4290.650735][   T73]      ip6_pol_route+0x56f/0x840
[ 4290.650735][   T73]      fib6_rule_lookup+0x456/0x630
[ 4290.650735][   T73]      ip6_route_input+0x59c/0xa50
[ 4290.650735][   T73]      ipv6_rcv+0x397/0x810
[ 4290.650735][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4290.650735][   T73]      process_backlog+0x101/0x620
[ 4290.650735][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4290.650735][   T73]      net_rx_action+0x495/0xbe0
[ 4290.650735][   T73]      __do_softirq+0x1b5/0x7f6
[ 4290.650735][   T73] 
[ 4290.652541][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4290.652541][   T73]      netdev_get_by_index+0x5e/0x80
[ 4290.652541][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4290.652541][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4290.652541][   T73]      ip6_route_add+0x1c/0x140
[ 4290.652541][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4290.652541][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4290.652541][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4290.652541][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4290.652541][   T73]      netlink_rcv_skb+0x130/0x360
[ 4290.652541][   T73]      netlink_unicast+0x449/0x710
[ 4290.652541][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4290.652541][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4290.652541][   T73]      ___sys_sendmsg+0xee/0x170
[ 4290.652541][   T73]      __sys_sendmsg+0xcd/0x170
[ 4290.652541][   T73]      do_syscall_64+0xc6/0x1e0
[ 4290.652541][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4290.652541][   T73] 
[ 4290.654777][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4290.654777][   T73]      netdev_get_by_index+0x5e/0x80
[ 4290.654777][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4290.654777][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4290.654777][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4290.654777][   T73]      ipv6_add_addr+0x411/0x2000
[ 4290.654777][   T73]      inet6_addr_add+0x30e/0xa40
[ 4290.654777][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4290.654777][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4290.654777][   T73]      netlink_rcv_skb+0x130/0x360
[ 4290.654777][   T73]      netlink_unicast+0x449/0x710
[ 4290.654777][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4290.654777][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4290.654777][   T73]      ___sys_sendmsg+0xee/0x170
[ 4290.654777][   T73]      __sys_sendmsg+0xcd/0x170
[ 4290.654777][   T73]      do_syscall_64+0xc6/0x1e0
[ 4290.654777][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4290.654777][   T73] 
[ 4290.657008][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4290.657008][   T73]      netdev_get_by_index+0x5e/0x80
[ 4290.657008][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4290.657008][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4290.657008][   T73]      ip6_route_add+0x1c/0x140
[ 4290.657008][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4290.657008][   T73]      addrconf_add_dev+0xe2/0x170
[ 4290.657008][   T73]      inet6_addr_add+0x12f/0xa40
[ 4290.657008][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4290.657008][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4290.657008][   T73]      netlink_rcv_skb+0x130/0x360
[ 4290.657008][   T73]      netlink_unicast+0x449/0x710
[ 4290.657008][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4290.657008][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4290.657008][   T73]      ___sys_sendmsg+0xee/0x170
[ 4290.657008][   T73]      __sys_sendmsg+0xcd/0x170
[ 4290.657008][   T73]      do_syscall_64+0xc6/0x1e0
[ 4290.657008][   T73] 
[ 4290.659152][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4290.659152][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4290.659152][   T73]      ipv6_find_idev+0x102/0x170
[ 4290.659152][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4290.659152][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4290.659152][   T73]      netlink_rcv_skb+0x130/0x360
[ 4290.659152][   T73]      netlink_unicast+0x449/0x710
[ 4290.659152][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4290.659152][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4290.659152][   T73]      ___sys_sendmsg+0xee/0x170
[ 4290.659152][   T73]      __sys_sendmsg+0xcd/0x170
[ 4290.659152][   T73]      do_syscall_64+0xc6/0x1e0
[ 4290.659152][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4290.659152][   T73] 
[ 4290.660865][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4290.660865][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4290.660865][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4290.660865][   T73]      ipv6_find_idev+0x102/0x170
[ 4290.660865][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4290.660865][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4290.660865][   T73]      netlink_rcv_skb+0x130/0x360
[ 4290.660865][   T73]      netlink_unicast+0x449/0x710
[ 4290.660865][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4290.660865][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4290.660865][   T73]      ___sys_sendmsg+0xee/0x170
[ 4290.660865][   T73]      __sys_sendmsg+0xcd/0x170
[ 4290.660865][   T73]      do_syscall_64+0xc6/0x1e0
[ 4290.660865][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4290.660865][   T73] 
[ 4290.662721][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4290.663065][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4290.663065][   T73]      netdev_get_by_index+0x5e/0x80
[ 4290.663065][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4290.663065][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4290.663065][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4290.663065][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4290.663065][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4290.663065][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4290.663065][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4290.663065][   T73]      addrconf_dad_begin+0x310/0x670
[ 4290.663065][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4290.663065][   T73]      process_one_work+0x84d/0x18a0
[ 4290.663065][   T73]      worker_thread+0x587/0xd30
[ 4290.663065][   T73]      kthread+0x28a/0x350
[ 4290.663065][   T73]      ret_from_fork+0x31/0x70
[ 4290.663065][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4290.663065][   T73] 
[ 4290.665100][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4290.665100][   T73]      netdev_get_by_index+0x5e/0x80
[ 4290.665100][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4290.665100][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4290.665100][   T73]      ip6_route_add+0x1c/0x140
[ 4290.665100][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4290.665100][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4290.665100][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4290.665100][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4290.665100][   T73]      netlink_rcv_skb+0x130/0x360
[ 4290.665100][   T73]      netlink_unicast+0x449/0x710
[ 4290.665100][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4290.665100][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4290.665100][   T73]      ___sys_sendmsg+0xee/0x170
[ 4290.665100][   T73]      __sys_sendmsg+0xcd/0x170
[ 4290.665100][   T73]      do_syscall_64+0xc6/0x1e0
[ 4290.665100][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4290.665100][   T73] 
[ 4290.667405][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4290.667405][   T73]      netdev_get_by_index+0x5e/0x80
[ 4290.667405][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4290.667405][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4290.667405][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4290.667405][   T73]      ipv6_add_addr+0x411/0x2000
[ 4290.667405][   T73]      inet6_addr_add+0x30e/0xa40
[ 4290.667405][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4290.667405][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4290.667405][   T73]      netlink_rcv_skb+0x130/0x360
[ 4290.667405][   T73]      netlink_unicast+0x449/0x710
[ 4290.667405][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4290.667405][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4290.667405][   T73]      ___sys_sendmsg+0xee/0x170
[ 4290.667405][   T73]      __sys_sendmsg+0xcd/0x170
[ 4290.667405][   T73]      do_syscall_64+0xc6/0x1e0
[ 4290.667405][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4290.667405][   T73] 
[ 4290.669634][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4290.669634][   T73]      netdev_get_by_index+0x5e/0x80
[ 4290.669634][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4290.669634][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4290.669634][   T73]      ip6_route_add+0x1c/0x140
[ 4290.669634][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4290.669634][   T73]      addrconf_add_dev+0xe2/0x170
[ 4290.669634][   T73]      inet6_addr_add+0x12f/0xa40
[ 4290.669634][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4290.669634][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4290.669634][   T73]      netlink_rcv_skb+0x130/0x360
[ 4290.669634][   T73]      netlink_unicast+0x449/0x710
[ 4290.669634][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4290.669634][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4290.669634][   T73]      ___sys_sendmsg+0xee/0x170
[ 4290.669634][   T73]      __sys_sendmsg+0xcd/0x170
[ 4290.669634][   T73]      do_syscall_64+0xc6/0x1e0
[ 4290.669634][   T73] 
[ 4290.671832][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4290.671832][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4290.671832][   T73]      ipv6_find_idev+0x102/0x170
[ 4290.671832][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4290.671832][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4290.671832][   T73]      netlink_rcv_skb+0x130/0x360
[ 4290.671832][   T73]      netlink_unicast+0x449/0x710
[ 4290.671832][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4290.671832][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4290.671832][   T73]      ___sys_sendmsg+0xee/0x170
[ 4290.671832][   T73]      __sys_sendmsg+0xcd/0x170
[ 4290.671832][   T73]      do_syscall_64+0xc6/0x1e0
[ 4290.671832][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4290.671832][   T73] 
[ 4290.674081][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4290.674081][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4290.674081][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4290.674081][   T73]      ipv6_find_idev+0x102/0x170
[ 4290.674081][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4290.674081][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4290.674081][   T73]      netlink_rcv_skb+0x130/0x360
[ 4290.674081][   T73]      netlink_unicast+0x449/0x710
[ 4290.674081][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4290.674081][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4290.674081][   T73]      ___sys_sendmsg+0xee/0x170
[ 4290.674081][   T73]      __sys_sendmsg+0xcd/0x170
[ 4290.674081][   T73]      do_syscall_64+0xc6/0x1e0
[ 4290.674081][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4290.674081][   T73] 
[ 4300.767779][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4300.768203][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4300.768203][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4300.768203][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4300.768203][   T73]      fib6_nh_init+0xa22/0x1580
[ 4300.768203][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4300.768203][   T73]      ip6_route_add+0x1c/0x140
[ 4300.768203][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4300.768203][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4300.768203][   T73]      netlink_rcv_skb+0x130/0x360
[ 4300.768203][   T73]      netlink_unicast+0x449/0x710
[ 4300.768203][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4300.768203][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4300.768203][   T73]      ___sys_sendmsg+0xee/0x170
[ 4300.768203][   T73]      __sys_sendmsg+0xcd/0x170
[ 4300.768203][   T73]      do_syscall_64+0xc6/0x1e0
[ 4300.768203][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4300.768203][   T73] 
[ 4300.770093][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4300.770093][   T73]      dst_init+0x84/0x4a0
[ 4300.770093][   T73]      dst_alloc+0x97/0x150
[ 4300.770093][   T73]      ip6_dst_alloc+0x23/0x90
[ 4300.770093][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4300.770093][   T73]      ip6_pol_route+0x56f/0x840
[ 4300.770093][   T73]      fib6_rule_lookup+0x456/0x630
[ 4300.770093][   T73]      ip6_route_input+0x59c/0xa50
[ 4300.770093][   T73]      ipv6_rcv+0x397/0x810
[ 4300.770093][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4300.770093][   T73]      process_backlog+0x101/0x620
[ 4300.770093][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4300.770093][   T73]      net_rx_action+0x495/0xbe0
[ 4300.770093][   T73]      __do_softirq+0x1b5/0x7f6
[ 4300.770093][   T73] 
[ 4300.771747][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4300.771747][   T73]      netdev_get_by_index+0x5e/0x80
[ 4300.771747][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4300.771747][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4300.771747][   T73]      ip6_route_add+0x1c/0x140
[ 4300.771747][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4300.771747][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4300.771747][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4300.771747][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4300.771747][   T73]      netlink_rcv_skb+0x130/0x360
[ 4300.771747][   T73]      netlink_unicast+0x449/0x710
[ 4300.771747][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4300.771747][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4300.771747][   T73]      ___sys_sendmsg+0xee/0x170
[ 4300.771747][   T73]      __sys_sendmsg+0xcd/0x170
[ 4300.771747][   T73]      do_syscall_64+0xc6/0x1e0
[ 4300.771747][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4300.771747][   T73] 
[ 4300.773743][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4300.773743][   T73]      netdev_get_by_index+0x5e/0x80
[ 4300.773743][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4300.773743][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4300.773743][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4300.773743][   T73]      ipv6_add_addr+0x411/0x2000
[ 4300.773743][   T73]      inet6_addr_add+0x30e/0xa40
[ 4300.773743][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4300.773743][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4300.773743][   T73]      netlink_rcv_skb+0x130/0x360
[ 4300.773743][   T73]      netlink_unicast+0x449/0x710
[ 4300.773743][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4300.773743][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4300.773743][   T73]      ___sys_sendmsg+0xee/0x170
[ 4300.773743][   T73]      __sys_sendmsg+0xcd/0x170
[ 4300.773743][   T73]      do_syscall_64+0xc6/0x1e0
[ 4300.773743][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4300.773743][   T73] 
[ 4300.775751][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4300.775751][   T73]      netdev_get_by_index+0x5e/0x80
[ 4300.775751][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4300.775751][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4300.775751][   T73]      ip6_route_add+0x1c/0x140
[ 4300.775751][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4300.775751][   T73]      addrconf_add_dev+0xe2/0x170
[ 4300.775751][   T73]      inet6_addr_add+0x12f/0xa40
[ 4300.775751][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4300.775751][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4300.775751][   T73]      netlink_rcv_skb+0x130/0x360
[ 4300.775751][   T73]      netlink_unicast+0x449/0x710
[ 4300.775751][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4300.775751][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4300.775751][   T73]      ___sys_sendmsg+0xee/0x170
[ 4300.775751][   T73]      __sys_sendmsg+0xcd/0x170
[ 4300.775751][   T73]      do_syscall_64+0xc6/0x1e0
[ 4300.775751][   T73] 
[ 4300.777708][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4300.777708][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4300.777708][   T73]      ipv6_find_idev+0x102/0x170
[ 4300.777708][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4300.777708][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4300.777708][   T73]      netlink_rcv_skb+0x130/0x360
[ 4300.777708][   T73]      netlink_unicast+0x449/0x710
[ 4300.777708][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4300.777708][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4300.777708][   T73]      ___sys_sendmsg+0xee/0x170
[ 4300.777708][   T73]      __sys_sendmsg+0xcd/0x170
[ 4300.777708][   T73]      do_syscall_64+0xc6/0x1e0
[ 4300.777708][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4300.777708][   T73] 
[ 4300.779286][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4300.779286][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4300.779286][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4300.779286][   T73]      ipv6_find_idev+0x102/0x170
[ 4300.779286][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4300.779286][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4300.779286][   T73]      netlink_rcv_skb+0x130/0x360
[ 4300.779286][   T73]      netlink_unicast+0x449/0x710
[ 4300.779286][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4300.779286][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4300.779286][   T73]      ___sys_sendmsg+0xee/0x170
[ 4300.779286][   T73]      __sys_sendmsg+0xcd/0x170
[ 4300.779286][   T73]      do_syscall_64+0xc6/0x1e0
[ 4300.779286][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4300.779286][   T73] 
[ 4300.780981][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4300.781272][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4300.781272][   T73]      netdev_get_by_index+0x5e/0x80
[ 4300.781272][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4300.781272][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4300.781272][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4300.781272][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4300.781272][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4300.781272][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4300.781272][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4300.781272][   T73]      addrconf_dad_begin+0x310/0x670
[ 4300.781272][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4300.781272][   T73]      process_one_work+0x84d/0x18a0
[ 4300.781272][   T73]      worker_thread+0x587/0xd30
[ 4300.781272][   T73]      kthread+0x28a/0x350
[ 4300.781272][   T73]      ret_from_fork+0x31/0x70
[ 4300.781272][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4300.781272][   T73] 
[ 4300.783183][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4300.783183][   T73]      netdev_get_by_index+0x5e/0x80
[ 4300.783183][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4300.783183][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4300.783183][   T73]      ip6_route_add+0x1c/0x140
[ 4300.783183][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4300.783183][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4300.783183][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4300.783183][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4300.783183][   T73]      netlink_rcv_skb+0x130/0x360
[ 4300.783183][   T73]      netlink_unicast+0x449/0x710
[ 4300.783183][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4300.783183][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4300.783183][   T73]      ___sys_sendmsg+0xee/0x170
[ 4300.783183][   T73]      __sys_sendmsg+0xcd/0x170
[ 4300.783183][   T73]      do_syscall_64+0xc6/0x1e0
[ 4300.783183][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4300.783183][   T73] 
[ 4300.785201][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4300.785201][   T73]      netdev_get_by_index+0x5e/0x80
[ 4300.785201][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4300.785201][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4300.785201][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4300.785201][   T73]      ipv6_add_addr+0x411/0x2000
[ 4300.785201][   T73]      inet6_addr_add+0x30e/0xa40
[ 4300.785201][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4300.785201][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4300.785201][   T73]      netlink_rcv_skb+0x130/0x360
[ 4300.785201][   T73]      netlink_unicast+0x449/0x710
[ 4300.785201][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4300.785201][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4300.785201][   T73]      ___sys_sendmsg+0xee/0x170
[ 4300.785201][   T73]      __sys_sendmsg+0xcd/0x170
[ 4300.785201][   T73]      do_syscall_64+0xc6/0x1e0
[ 4300.785201][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4300.785201][   T73] 
[ 4300.787224][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4300.787224][   T73]      netdev_get_by_index+0x5e/0x80
[ 4300.787224][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4300.787224][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4300.787224][   T73]      ip6_route_add+0x1c/0x140
[ 4300.787224][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4300.787224][   T73]      addrconf_add_dev+0xe2/0x170
[ 4300.787224][   T73]      inet6_addr_add+0x12f/0xa40
[ 4300.787224][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4300.787224][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4300.787224][   T73]      netlink_rcv_skb+0x130/0x360
[ 4300.787224][   T73]      netlink_unicast+0x449/0x710
[ 4300.787224][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4300.787224][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4300.787224][   T73]      ___sys_sendmsg+0xee/0x170
[ 4300.787224][   T73]      __sys_sendmsg+0xcd/0x170
[ 4300.787224][   T73]      do_syscall_64+0xc6/0x1e0
[ 4300.787224][   T73] 
[ 4300.789203][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4300.789203][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4300.789203][   T73]      ipv6_find_idev+0x102/0x170
[ 4300.789203][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4300.789203][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4300.789203][   T73]      netlink_rcv_skb+0x130/0x360
[ 4300.789203][   T73]      netlink_unicast+0x449/0x710
[ 4300.789203][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4300.789203][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4300.789203][   T73]      ___sys_sendmsg+0xee/0x170
[ 4300.789203][   T73]      __sys_sendmsg+0xcd/0x170
[ 4300.789203][   T73]      do_syscall_64+0xc6/0x1e0
[ 4300.789203][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4300.789203][   T73] 
[ 4300.790753][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4300.790753][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4300.790753][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4300.790753][   T73]      ipv6_find_idev+0x102/0x170
[ 4300.790753][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4300.790753][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4300.790753][   T73]      netlink_rcv_skb+0x130/0x360
[ 4300.790753][   T73]      netlink_unicast+0x449/0x710
[ 4300.790753][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4300.790753][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4300.790753][   T73]      ___sys_sendmsg+0xee/0x170
[ 4300.790753][   T73]      __sys_sendmsg+0xcd/0x170
[ 4300.790753][   T73]      do_syscall_64+0xc6/0x1e0
[ 4300.790753][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4300.790753][   T73] 
[ 4300.792529][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4300.792811][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4300.792811][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4300.792811][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4300.792811][   T73]      fib6_nh_init+0xa22/0x1580
[ 4300.792811][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4300.792811][   T73]      ip6_route_add+0x1c/0x140
[ 4300.792811][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4300.792811][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4300.792811][   T73]      netlink_rcv_skb+0x130/0x360
[ 4300.792811][   T73]      netlink_unicast+0x449/0x710
[ 4300.792811][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4300.792811][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4300.792811][   T73]      ___sys_sendmsg+0xee/0x170
[ 4300.792811][   T73]      __sys_sendmsg+0xcd/0x170
[ 4300.792811][   T73]      do_syscall_64+0xc6/0x1e0
[ 4300.792811][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4300.792811][   T73] 
[ 4300.794877][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4300.794877][   T73]      dst_init+0x84/0x4a0
[ 4300.794877][   T73]      dst_alloc+0x97/0x150
[ 4300.794877][   T73]      ip6_dst_alloc+0x23/0x90
[ 4300.794877][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4300.794877][   T73]      ip6_pol_route+0x56f/0x840
[ 4300.794877][   T73]      fib6_rule_lookup+0x456/0x630
[ 4300.794877][   T73]      ip6_route_input+0x59c/0xa50
[ 4300.794877][   T73]      ipv6_rcv+0x397/0x810
[ 4300.794877][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4300.794877][   T73]      process_backlog+0x101/0x620
[ 4300.794877][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4300.794877][   T73]      net_rx_action+0x495/0xbe0
[ 4300.794877][   T73]      __do_softirq+0x1b5/0x7f6
[ 4300.794877][   T73] 
[ 4300.796757][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4300.796757][   T73]      netdev_get_by_index+0x5e/0x80
[ 4300.796757][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4300.796757][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4300.796757][   T73]      ip6_route_add+0x1c/0x140
[ 4300.796757][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4300.796757][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4300.796757][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4300.796757][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4300.796757][   T73]      netlink_rcv_skb+0x130/0x360
[ 4300.796757][   T73]      netlink_unicast+0x449/0x710
[ 4300.796757][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4300.796757][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4300.796757][   T73]      ___sys_sendmsg+0xee/0x170
[ 4300.796757][   T73]      __sys_sendmsg+0xcd/0x170
[ 4300.796757][   T73]      do_syscall_64+0xc6/0x1e0
[ 4300.796757][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4300.796757][   T73] 
[ 4300.801558][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4300.801558][   T73]      netdev_get_by_index+0x5e/0x80
[ 4300.801558][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4300.801558][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4300.801558][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4300.801558][   T73]      ipv6_add_addr+0x411/0x2000
[ 4300.801558][   T73]      inet6_addr_add+0x30e/0xa40
[ 4300.801558][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4300.801558][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4300.801558][   T73]      netlink_rcv_skb+0x130/0x360
[ 4300.801558][   T73]      netlink_unicast+0x449/0x710
[ 4300.801558][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4300.801558][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4300.801558][   T73]      ___sys_sendmsg+0xee/0x170
[ 4300.801558][   T73]      __sys_sendmsg+0xcd/0x170
[ 4300.801558][   T73]      do_syscall_64+0xc6/0x1e0
[ 4300.801558][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4300.801558][   T73] 
[ 4300.803787][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4300.803787][   T73]      netdev_get_by_index+0x5e/0x80
[ 4300.803787][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4300.803787][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4300.803787][   T73]      ip6_route_add+0x1c/0x140
[ 4300.803787][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4300.803787][   T73]      addrconf_add_dev+0xe2/0x170
[ 4300.803787][   T73]      inet6_addr_add+0x12f/0xa40
[ 4300.803787][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4300.803787][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4300.803787][   T73]      netlink_rcv_skb+0x130/0x360
[ 4300.803787][   T73]      netlink_unicast+0x449/0x710
[ 4300.803787][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4300.803787][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4300.803787][   T73]      ___sys_sendmsg+0xee/0x170
[ 4300.803787][   T73]      __sys_sendmsg+0xcd/0x170
[ 4300.803787][   T73]      do_syscall_64+0xc6/0x1e0
[ 4300.803787][   T73] 
[ 4300.805947][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4300.805947][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4300.805947][   T73]      ipv6_find_idev+0x102/0x170
[ 4300.805947][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4300.805947][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4300.805947][   T73]      netlink_rcv_skb+0x130/0x360
[ 4300.805947][   T73]      netlink_unicast+0x449/0x710
[ 4300.805947][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4300.805947][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4300.805947][   T73]      ___sys_sendmsg+0xee/0x170
[ 4300.805947][   T73]      __sys_sendmsg+0xcd/0x170
[ 4300.805947][   T73]      do_syscall_64+0xc6/0x1e0
[ 4300.805947][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4300.805947][   T73] 
[ 4300.807724][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4300.807724][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4300.807724][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4300.807724][   T73]      ipv6_find_idev+0x102/0x170
[ 4300.807724][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4300.807724][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4300.807724][   T73]      netlink_rcv_skb+0x130/0x360
[ 4300.807724][   T73]      netlink_unicast+0x449/0x710
[ 4300.807724][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4300.807724][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4300.807724][   T73]      ___sys_sendmsg+0xee/0x170
[ 4300.807724][   T73]      __sys_sendmsg+0xcd/0x170
[ 4300.807724][   T73]      do_syscall_64+0xc6/0x1e0
[ 4300.807724][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4300.807724][   T73] 
[ 4300.809667][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4300.809940][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4300.809940][   T73]      netdev_get_by_index+0x5e/0x80
[ 4300.809940][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4300.809940][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4300.809940][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4300.809940][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4300.809940][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4300.809940][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4300.809940][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4300.809940][   T73]      addrconf_dad_begin+0x310/0x670
[ 4300.809940][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4300.809940][   T73]      process_one_work+0x84d/0x18a0
[ 4300.809940][   T73]      worker_thread+0x587/0xd30
[ 4300.809940][   T73]      kthread+0x28a/0x350
[ 4300.809940][   T73]      ret_from_fork+0x31/0x70
[ 4300.809940][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4300.809940][   T73] 
[ 4300.812084][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4300.812084][   T73]      netdev_get_by_index+0x5e/0x80
[ 4300.812084][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4300.812084][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4300.812084][   T73]      ip6_route_add+0x1c/0x140
[ 4300.812084][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4300.812084][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4300.812084][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4300.812084][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4300.812084][   T73]      netlink_rcv_skb+0x130/0x360
[ 4300.812084][   T73]      netlink_unicast+0x449/0x710
[ 4300.812084][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4300.812084][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4300.812084][   T73]      ___sys_sendmsg+0xee/0x170
[ 4300.812084][   T73]      __sys_sendmsg+0xcd/0x170
[ 4300.812084][   T73]      do_syscall_64+0xc6/0x1e0
[ 4300.812084][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4300.812084][   T73] 
[ 4300.814254][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4300.814254][   T73]      netdev_get_by_index+0x5e/0x80
[ 4300.814254][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4300.814254][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4300.814254][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4300.814254][   T73]      ipv6_add_addr+0x411/0x2000
[ 4300.814254][   T73]      inet6_addr_add+0x30e/0xa40
[ 4300.814254][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4300.814254][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4300.814254][   T73]      netlink_rcv_skb+0x130/0x360
[ 4300.814254][   T73]      netlink_unicast+0x449/0x710
[ 4300.814254][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4300.814254][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4300.814254][   T73]      ___sys_sendmsg+0xee/0x170
[ 4300.814254][   T73]      __sys_sendmsg+0xcd/0x170
[ 4300.814254][   T73]      do_syscall_64+0xc6/0x1e0
[ 4300.814254][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4300.814254][   T73] 
[ 4300.816501][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4300.816501][   T73]      netdev_get_by_index+0x5e/0x80
[ 4300.816501][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4300.816501][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4300.816501][   T73]      ip6_route_add+0x1c/0x140
[ 4300.816501][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4300.816501][   T73]      addrconf_add_dev+0xe2/0x170
[ 4300.816501][   T73]      inet6_addr_add+0x12f/0xa40
[ 4300.816501][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4300.816501][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4300.816501][   T73]      netlink_rcv_skb+0x130/0x360
[ 4300.816501][   T73]      netlink_unicast+0x449/0x710
[ 4300.816501][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4300.816501][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4300.816501][   T73]      ___sys_sendmsg+0xee/0x170
[ 4300.816501][   T73]      __sys_sendmsg+0xcd/0x170
[ 4300.816501][   T73]      do_syscall_64+0xc6/0x1e0
[ 4300.816501][   T73] 
[ 4300.818762][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4300.818762][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4300.818762][   T73]      ipv6_find_idev+0x102/0x170
[ 4300.818762][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4300.818762][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4300.818762][   T73]      netlink_rcv_skb+0x130/0x360
[ 4300.818762][   T73]      netlink_unicast+0x449/0x710
[ 4300.818762][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4300.818762][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4300.818762][   T73]      ___sys_sendmsg+0xee/0x170
[ 4300.818762][   T73]      __sys_sendmsg+0xcd/0x170
[ 4300.818762][   T73]      do_syscall_64+0xc6/0x1e0
[ 4300.818762][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4300.818762][   T73] 
[ 4300.820478][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4300.820478][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4300.820478][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4300.820478][   T73]      ipv6_find_idev+0x102/0x170
[ 4300.820478][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4300.820478][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4300.820478][   T73]      netlink_rcv_skb+0x130/0x360
[ 4300.820478][   T73]      netlink_unicast+0x449/0x710
[ 4300.820478][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4300.820478][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4300.820478][   T73]      ___sys_sendmsg+0xee/0x170
[ 4300.820478][   T73]      __sys_sendmsg+0xcd/0x170
[ 4300.820478][   T73]      do_syscall_64+0xc6/0x1e0
[ 4300.820478][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4300.820478][   T73] 
[ 4311.063704][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4311.064150][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4311.064150][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4311.064150][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4311.064150][   T73]      fib6_nh_init+0xa22/0x1580
[ 4311.064150][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4311.064150][   T73]      ip6_route_add+0x1c/0x140
[ 4311.064150][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4311.064150][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4311.064150][   T73]      netlink_rcv_skb+0x130/0x360
[ 4311.064150][   T73]      netlink_unicast+0x449/0x710
[ 4311.064150][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4311.064150][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4311.064150][   T73]      ___sys_sendmsg+0xee/0x170
[ 4311.064150][   T73]      __sys_sendmsg+0xcd/0x170
[ 4311.064150][   T73]      do_syscall_64+0xc6/0x1e0
[ 4311.064150][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4311.064150][   T73] 
[ 4311.066279][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4311.066279][   T73]      dst_init+0x84/0x4a0
[ 4311.066279][   T73]      dst_alloc+0x97/0x150
[ 4311.066279][   T73]      ip6_dst_alloc+0x23/0x90
[ 4311.066279][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4311.066279][   T73]      ip6_pol_route+0x56f/0x840
[ 4311.066279][   T73]      fib6_rule_lookup+0x456/0x630
[ 4311.066279][   T73]      ip6_route_input+0x59c/0xa50
[ 4311.066279][   T73]      ipv6_rcv+0x397/0x810
[ 4311.066279][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4311.066279][   T73]      process_backlog+0x101/0x620
[ 4311.066279][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4311.066279][   T73]      net_rx_action+0x495/0xbe0
[ 4311.066279][   T73]      __do_softirq+0x1b5/0x7f6
[ 4311.066279][   T73] 
[ 4311.068091][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4311.068091][   T73]      netdev_get_by_index+0x5e/0x80
[ 4311.068091][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4311.068091][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4311.068091][   T73]      ip6_route_add+0x1c/0x140
[ 4311.068091][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4311.068091][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4311.068091][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4311.068091][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4311.068091][   T73]      netlink_rcv_skb+0x130/0x360
[ 4311.068091][   T73]      netlink_unicast+0x449/0x710
[ 4311.068091][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4311.068091][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4311.068091][   T73]      ___sys_sendmsg+0xee/0x170
[ 4311.068091][   T73]      __sys_sendmsg+0xcd/0x170
[ 4311.068091][   T73]      do_syscall_64+0xc6/0x1e0
[ 4311.068091][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4311.068091][   T73] 
[ 4311.070291][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4311.070291][   T73]      netdev_get_by_index+0x5e/0x80
[ 4311.070291][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4311.070291][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4311.070291][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4311.070291][   T73]      ipv6_add_addr+0x411/0x2000
[ 4311.070291][   T73]      inet6_addr_add+0x30e/0xa40
[ 4311.070291][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4311.070291][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4311.070291][   T73]      netlink_rcv_skb+0x130/0x360
[ 4311.070291][   T73]      netlink_unicast+0x449/0x710
[ 4311.070291][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4311.070291][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4311.070291][   T73]      ___sys_sendmsg+0xee/0x170
[ 4311.070291][   T73]      __sys_sendmsg+0xcd/0x170
[ 4311.070291][   T73]      do_syscall_64+0xc6/0x1e0
[ 4311.070291][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4311.070291][   T73] 
[ 4311.072497][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4311.072497][   T73]      netdev_get_by_index+0x5e/0x80
[ 4311.072497][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4311.072497][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4311.072497][   T73]      ip6_route_add+0x1c/0x140
[ 4311.072497][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4311.072497][   T73]      addrconf_add_dev+0xe2/0x170
[ 4311.072497][   T73]      inet6_addr_add+0x12f/0xa40
[ 4311.072497][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4311.072497][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4311.072497][   T73]      netlink_rcv_skb+0x130/0x360
[ 4311.072497][   T73]      netlink_unicast+0x449/0x710
[ 4311.072497][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4311.072497][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4311.072497][   T73]      ___sys_sendmsg+0xee/0x170
[ 4311.072497][   T73]      __sys_sendmsg+0xcd/0x170
[ 4311.072497][   T73]      do_syscall_64+0xc6/0x1e0
[ 4311.072497][   T73] 
[ 4311.074705][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4311.074705][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4311.074705][   T73]      ipv6_find_idev+0x102/0x170
[ 4311.074705][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4311.074705][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4311.074705][   T73]      netlink_rcv_skb+0x130/0x360
[ 4311.074705][   T73]      netlink_unicast+0x449/0x710
[ 4311.074705][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4311.074705][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4311.074705][   T73]      ___sys_sendmsg+0xee/0x170
[ 4311.074705][   T73]      __sys_sendmsg+0xcd/0x170
[ 4311.074705][   T73]      do_syscall_64+0xc6/0x1e0
[ 4311.074705][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4311.074705][   T73] 
[ 4311.076404][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4311.076404][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4311.076404][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4311.076404][   T73]      ipv6_find_idev+0x102/0x170
[ 4311.076404][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4311.076404][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4311.076404][   T73]      netlink_rcv_skb+0x130/0x360
[ 4311.076404][   T73]      netlink_unicast+0x449/0x710
[ 4311.076404][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4311.076404][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4311.076404][   T73]      ___sys_sendmsg+0xee/0x170
[ 4311.076404][   T73]      __sys_sendmsg+0xcd/0x170
[ 4311.076404][   T73]      do_syscall_64+0xc6/0x1e0
[ 4311.076404][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4311.076404][   T73] 
[ 4311.078266][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4311.078573][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4311.078573][   T73]      netdev_get_by_index+0x5e/0x80
[ 4311.078573][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4311.078573][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4311.078573][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4311.078573][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4311.078573][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4311.078573][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4311.078573][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4311.078573][   T73]      addrconf_dad_begin+0x310/0x670
[ 4311.078573][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4311.078573][   T73]      process_one_work+0x84d/0x18a0
[ 4311.078573][   T73]      worker_thread+0x587/0xd30
[ 4311.078573][   T73]      kthread+0x28a/0x350
[ 4311.078573][   T73]      ret_from_fork+0x31/0x70
[ 4311.078573][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4311.078573][   T73] 
[ 4311.080689][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4311.080689][   T73]      netdev_get_by_index+0x5e/0x80
[ 4311.080689][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4311.080689][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4311.080689][   T73]      ip6_route_add+0x1c/0x140
[ 4311.080689][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4311.080689][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4311.080689][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4311.080689][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4311.080689][   T73]      netlink_rcv_skb+0x130/0x360
[ 4311.080689][   T73]      netlink_unicast+0x449/0x710
[ 4311.080689][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4311.080689][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4311.080689][   T73]      ___sys_sendmsg+0xee/0x170
[ 4311.080689][   T73]      __sys_sendmsg+0xcd/0x170
[ 4311.080689][   T73]      do_syscall_64+0xc6/0x1e0
[ 4311.080689][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4311.080689][   T73] 
[ 4311.082907][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4311.082907][   T73]      netdev_get_by_index+0x5e/0x80
[ 4311.082907][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4311.082907][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4311.082907][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4311.082907][   T73]      ipv6_add_addr+0x411/0x2000
[ 4311.082907][   T73]      inet6_addr_add+0x30e/0xa40
[ 4311.082907][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4311.082907][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4311.082907][   T73]      netlink_rcv_skb+0x130/0x360
[ 4311.082907][   T73]      netlink_unicast+0x449/0x710
[ 4311.082907][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4311.082907][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4311.082907][   T73]      ___sys_sendmsg+0xee/0x170
[ 4311.082907][   T73]      __sys_sendmsg+0xcd/0x170
[ 4311.082907][   T73]      do_syscall_64+0xc6/0x1e0
[ 4311.082907][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4311.082907][   T73] 
[ 4311.085132][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4311.085132][   T73]      netdev_get_by_index+0x5e/0x80
[ 4311.085132][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4311.085132][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4311.085132][   T73]      ip6_route_add+0x1c/0x140
[ 4311.085132][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4311.085132][   T73]      addrconf_add_dev+0xe2/0x170
[ 4311.085132][   T73]      inet6_addr_add+0x12f/0xa40
[ 4311.085132][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4311.085132][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4311.085132][   T73]      netlink_rcv_skb+0x130/0x360
[ 4311.085132][   T73]      netlink_unicast+0x449/0x710
[ 4311.085132][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4311.085132][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4311.085132][   T73]      ___sys_sendmsg+0xee/0x170
[ 4311.085132][   T73]      __sys_sendmsg+0xcd/0x170
[ 4311.085132][   T73]      do_syscall_64+0xc6/0x1e0
[ 4311.085132][   T73] 
[ 4311.087302][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4311.087302][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4311.087302][   T73]      ipv6_find_idev+0x102/0x170
[ 4311.087302][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4311.087302][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4311.087302][   T73]      netlink_rcv_skb+0x130/0x360
[ 4311.087302][   T73]      netlink_unicast+0x449/0x710
[ 4311.087302][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4311.087302][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4311.087302][   T73]      ___sys_sendmsg+0xee/0x170
[ 4311.087302][   T73]      __sys_sendmsg+0xcd/0x170
[ 4311.087302][   T73]      do_syscall_64+0xc6/0x1e0
[ 4311.087302][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4311.087302][   T73] 
[ 4311.088994][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4311.088994][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4311.088994][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4311.088994][   T73]      ipv6_find_idev+0x102/0x170
[ 4311.088994][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4311.088994][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4311.088994][   T73]      netlink_rcv_skb+0x130/0x360
[ 4311.088994][   T73]      netlink_unicast+0x449/0x710
[ 4311.088994][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4311.088994][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4311.088994][   T73]      ___sys_sendmsg+0xee/0x170
[ 4311.088994][   T73]      __sys_sendmsg+0xcd/0x170
[ 4311.088994][   T73]      do_syscall_64+0xc6/0x1e0
[ 4311.088994][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4311.088994][   T73] 
[ 4311.090844][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4311.091143][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4311.091143][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4311.091143][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4311.091143][   T73]      fib6_nh_init+0xa22/0x1580
[ 4311.091143][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4311.091143][   T73]      ip6_route_add+0x1c/0x140
[ 4311.091143][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4311.091143][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4311.091143][   T73]      netlink_rcv_skb+0x130/0x360
[ 4311.091143][   T73]      netlink_unicast+0x449/0x710
[ 4311.091143][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4311.091143][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4311.091143][   T73]      ___sys_sendmsg+0xee/0x170
[ 4311.091143][   T73]      __sys_sendmsg+0xcd/0x170
[ 4311.091143][   T73]      do_syscall_64+0xc6/0x1e0
[ 4311.091143][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4311.091143][   T73] 
[ 4311.093390][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4311.093390][   T73]      dst_init+0x84/0x4a0
[ 4311.093390][   T73]      dst_alloc+0x97/0x150
[ 4311.093390][   T73]      ip6_dst_alloc+0x23/0x90
[ 4311.093390][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4311.093390][   T73]      ip6_pol_route+0x56f/0x840
[ 4311.093390][   T73]      fib6_rule_lookup+0x456/0x630
[ 4311.093390][   T73]      ip6_route_input+0x59c/0xa50
[ 4311.093390][   T73]      ipv6_rcv+0x397/0x810
[ 4311.093390][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4311.093390][   T73]      process_backlog+0x101/0x620
[ 4311.093390][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4311.093390][   T73]      net_rx_action+0x495/0xbe0
[ 4311.093390][   T73]      __do_softirq+0x1b5/0x7f6
[ 4311.093390][   T73] 
[ 4311.095930][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4311.095930][   T73]      netdev_get_by_index+0x5e/0x80
[ 4311.095930][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4311.095930][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4311.095930][   T73]      ip6_route_add+0x1c/0x140
[ 4311.095930][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4311.095930][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4311.095930][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4311.095930][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4311.095930][   T73]      netlink_rcv_skb+0x130/0x360
[ 4311.095930][   T73]      netlink_unicast+0x449/0x710
[ 4311.095930][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4311.095930][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4311.095930][   T73]      ___sys_sendmsg+0xee/0x170
[ 4311.095930][   T73]      __sys_sendmsg+0xcd/0x170
[ 4311.095930][   T73]      do_syscall_64+0xc6/0x1e0
[ 4311.095930][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4311.095930][   T73] 
[ 4311.098371][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4311.098371][   T73]      netdev_get_by_index+0x5e/0x80
[ 4311.098371][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4311.098371][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4311.098371][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4311.098371][   T73]      ipv6_add_addr+0x411/0x2000
[ 4311.098371][   T73]      inet6_addr_add+0x30e/0xa40
[ 4311.098371][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4311.098371][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4311.098371][   T73]      netlink_rcv_skb+0x130/0x360
[ 4311.098371][   T73]      netlink_unicast+0x449/0x710
[ 4311.098371][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4311.098371][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4311.098371][   T73]      ___sys_sendmsg+0xee/0x170
[ 4311.098371][   T73]      __sys_sendmsg+0xcd/0x170
[ 4311.098371][   T73]      do_syscall_64+0xc6/0x1e0
[ 4311.098371][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4311.098371][   T73] 
[ 4311.100897][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4311.100897][   T73]      netdev_get_by_index+0x5e/0x80
[ 4311.100897][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4311.100897][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4311.100897][   T73]      ip6_route_add+0x1c/0x140
[ 4311.100897][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4311.100897][   T73]      addrconf_add_dev+0xe2/0x170
[ 4311.100897][   T73]      inet6_addr_add+0x12f/0xa40
[ 4311.100897][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4311.100897][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4311.100897][   T73]      netlink_rcv_skb+0x130/0x360
[ 4311.100897][   T73]      netlink_unicast+0x449/0x710
[ 4311.100897][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4311.100897][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4311.100897][   T73]      ___sys_sendmsg+0xee/0x170
[ 4311.100897][   T73]      __sys_sendmsg+0xcd/0x170
[ 4311.100897][   T73]      do_syscall_64+0xc6/0x1e0
[ 4311.100897][   T73] 
[ 4311.105364][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4311.105364][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4311.105364][   T73]      ipv6_find_idev+0x102/0x170
[ 4311.105364][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4311.105364][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4311.105364][   T73]      netlink_rcv_skb+0x130/0x360
[ 4311.105364][   T73]      netlink_unicast+0x449/0x710
[ 4311.105364][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4311.105364][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4311.105364][   T73]      ___sys_sendmsg+0xee/0x170
[ 4311.105364][   T73]      __sys_sendmsg+0xcd/0x170
[ 4311.105364][   T73]      do_syscall_64+0xc6/0x1e0
[ 4311.105364][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4311.105364][   T73] 
[ 4311.107260][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4311.107260][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4311.107260][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4311.107260][   T73]      ipv6_find_idev+0x102/0x170
[ 4311.107260][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4311.107260][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4311.107260][   T73]      netlink_rcv_skb+0x130/0x360
[ 4311.107260][   T73]      netlink_unicast+0x449/0x710
[ 4311.107260][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4311.107260][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4311.107260][   T73]      ___sys_sendmsg+0xee/0x170
[ 4311.107260][   T73]      __sys_sendmsg+0xcd/0x170
[ 4311.107260][   T73]      do_syscall_64+0xc6/0x1e0
[ 4311.107260][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4311.107260][   T73] 
[ 4311.109380][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4311.109695][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4311.109695][   T73]      netdev_get_by_index+0x5e/0x80
[ 4311.109695][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4311.109695][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4311.109695][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4311.109695][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4311.109695][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4311.109695][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4311.109695][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4311.109695][   T73]      addrconf_dad_begin+0x310/0x670
[ 4311.109695][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4311.109695][   T73]      process_one_work+0x84d/0x18a0
[ 4311.109695][   T73]      worker_thread+0x587/0xd30
[ 4311.109695][   T73]      kthread+0x28a/0x350
[ 4311.109695][   T73]      ret_from_fork+0x31/0x70
[ 4311.109695][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4311.109695][   T73] 
[ 4311.112069][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4311.112069][   T73]      netdev_get_by_index+0x5e/0x80
[ 4311.112069][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4311.112069][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4311.112069][   T73]      ip6_route_add+0x1c/0x140
[ 4311.112069][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4311.112069][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4311.112069][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4311.112069][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4311.112069][   T73]      netlink_rcv_skb+0x130/0x360
[ 4311.112069][   T73]      netlink_unicast+0x449/0x710
[ 4311.112069][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4311.112069][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4311.112069][   T73]      ___sys_sendmsg+0xee/0x170
[ 4311.112069][   T73]      __sys_sendmsg+0xcd/0x170
[ 4311.112069][   T73]      do_syscall_64+0xc6/0x1e0
[ 4311.112069][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4311.112069][   T73] 
[ 4311.114563][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4311.114563][   T73]      netdev_get_by_index+0x5e/0x80
[ 4311.114563][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4311.114563][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4311.114563][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4311.114563][   T73]      ipv6_add_addr+0x411/0x2000
[ 4311.114563][   T73]      inet6_addr_add+0x30e/0xa40
[ 4311.114563][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4311.114563][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4311.114563][   T73]      netlink_rcv_skb+0x130/0x360
[ 4311.114563][   T73]      netlink_unicast+0x449/0x710
[ 4311.114563][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4311.114563][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4311.114563][   T73]      ___sys_sendmsg+0xee/0x170
[ 4311.114563][   T73]      __sys_sendmsg+0xcd/0x170
[ 4311.114563][   T73]      do_syscall_64+0xc6/0x1e0
[ 4311.114563][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4311.114563][   T73] 
[ 4311.117038][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4311.117038][   T73]      netdev_get_by_index+0x5e/0x80
[ 4311.117038][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4311.117038][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4311.117038][   T73]      ip6_route_add+0x1c/0x140
[ 4311.117038][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4311.117038][   T73]      addrconf_add_dev+0xe2/0x170
[ 4311.117038][   T73]      inet6_addr_add+0x12f/0xa40
[ 4311.117038][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4311.117038][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4311.117038][   T73]      netlink_rcv_skb+0x130/0x360
[ 4311.117038][   T73]      netlink_unicast+0x449/0x710
[ 4311.117038][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4311.117038][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4311.117038][   T73]      ___sys_sendmsg+0xee/0x170
[ 4311.117038][   T73]      __sys_sendmsg+0xcd/0x170
[ 4311.117038][   T73]      do_syscall_64+0xc6/0x1e0
[ 4311.117038][   T73] 
[ 4311.119485][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4311.119485][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4311.119485][   T73]      ipv6_find_idev+0x102/0x170
[ 4311.119485][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4311.119485][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4311.119485][   T73]      netlink_rcv_skb+0x130/0x360
[ 4311.119485][   T73]      netlink_unicast+0x449/0x710
[ 4311.119485][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4311.119485][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4311.119485][   T73]      ___sys_sendmsg+0xee/0x170
[ 4311.119485][   T73]      __sys_sendmsg+0xcd/0x170
[ 4311.119485][   T73]      do_syscall_64+0xc6/0x1e0
[ 4311.119485][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4311.119485][   T73] 
[ 4311.121379][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4311.121379][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4311.121379][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4311.121379][   T73]      ipv6_find_idev+0x102/0x170
[ 4311.121379][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4311.121379][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4311.121379][   T73]      netlink_rcv_skb+0x130/0x360
[ 4311.121379][   T73]      netlink_unicast+0x449/0x710
[ 4311.121379][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4311.121379][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4311.121379][   T73]      ___sys_sendmsg+0xee/0x170
[ 4311.121379][   T73]      __sys_sendmsg+0xcd/0x170
[ 4311.121379][   T73]      do_syscall_64+0xc6/0x1e0
[ 4311.121379][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4311.121379][   T73] 
[ 4321.359781][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4321.360304][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4321.360304][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4321.360304][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4321.360304][   T73]      fib6_nh_init+0xa22/0x1580
[ 4321.360304][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4321.360304][   T73]      ip6_route_add+0x1c/0x140
[ 4321.360304][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4321.360304][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4321.360304][   T73]      netlink_rcv_skb+0x130/0x360
[ 4321.360304][   T73]      netlink_unicast+0x449/0x710
[ 4321.360304][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4321.360304][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4321.360304][   T73]      ___sys_sendmsg+0xee/0x170
[ 4321.360304][   T73]      __sys_sendmsg+0xcd/0x170
[ 4321.360304][   T73]      do_syscall_64+0xc6/0x1e0
[ 4321.360304][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4321.360304][   T73] 
[ 4321.362684][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4321.362684][   T73]      dst_init+0x84/0x4a0
[ 4321.362684][   T73]      dst_alloc+0x97/0x150
[ 4321.362684][   T73]      ip6_dst_alloc+0x23/0x90
[ 4321.362684][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4321.362684][   T73]      ip6_pol_route+0x56f/0x840
[ 4321.362684][   T73]      fib6_rule_lookup+0x456/0x630
[ 4321.362684][   T73]      ip6_route_input+0x59c/0xa50
[ 4321.362684][   T73]      ipv6_rcv+0x397/0x810
[ 4321.362684][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4321.362684][   T73]      process_backlog+0x101/0x620
[ 4321.362684][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4321.362684][   T73]      net_rx_action+0x495/0xbe0
[ 4321.362684][   T73]      __do_softirq+0x1b5/0x7f6
[ 4321.362684][   T73] 
[ 4321.364732][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4321.364732][   T73]      netdev_get_by_index+0x5e/0x80
[ 4321.364732][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4321.364732][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4321.364732][   T73]      ip6_route_add+0x1c/0x140
[ 4321.364732][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4321.364732][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4321.364732][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4321.364732][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4321.364732][   T73]      netlink_rcv_skb+0x130/0x360
[ 4321.364732][   T73]      netlink_unicast+0x449/0x710
[ 4321.364732][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4321.364732][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4321.364732][   T73]      ___sys_sendmsg+0xee/0x170
[ 4321.364732][   T73]      __sys_sendmsg+0xcd/0x170
[ 4321.364732][   T73]      do_syscall_64+0xc6/0x1e0
[ 4321.364732][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4321.364732][   T73] 
[ 4321.367217][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4321.367217][   T73]      netdev_get_by_index+0x5e/0x80
[ 4321.367217][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4321.367217][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4321.367217][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4321.367217][   T73]      ipv6_add_addr+0x411/0x2000
[ 4321.367217][   T73]      inet6_addr_add+0x30e/0xa40
[ 4321.367217][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4321.367217][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4321.367217][   T73]      netlink_rcv_skb+0x130/0x360
[ 4321.367217][   T73]      netlink_unicast+0x449/0x710
[ 4321.367217][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4321.367217][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4321.367217][   T73]      ___sys_sendmsg+0xee/0x170
[ 4321.367217][   T73]      __sys_sendmsg+0xcd/0x170
[ 4321.367217][   T73]      do_syscall_64+0xc6/0x1e0
[ 4321.367217][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4321.367217][   T73] 
[ 4321.369691][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4321.369691][   T73]      netdev_get_by_index+0x5e/0x80
[ 4321.369691][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4321.369691][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4321.369691][   T73]      ip6_route_add+0x1c/0x140
[ 4321.369691][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4321.369691][   T73]      addrconf_add_dev+0xe2/0x170
[ 4321.369691][   T73]      inet6_addr_add+0x12f/0xa40
[ 4321.369691][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4321.369691][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4321.369691][   T73]      netlink_rcv_skb+0x130/0x360
[ 4321.369691][   T73]      netlink_unicast+0x449/0x710
[ 4321.369691][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4321.369691][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4321.369691][   T73]      ___sys_sendmsg+0xee/0x170
[ 4321.369691][   T73]      __sys_sendmsg+0xcd/0x170
[ 4321.369691][   T73]      do_syscall_64+0xc6/0x1e0
[ 4321.369691][   T73] 
[ 4321.372131][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4321.372131][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4321.372131][   T73]      ipv6_find_idev+0x102/0x170
[ 4321.372131][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4321.372131][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4321.372131][   T73]      netlink_rcv_skb+0x130/0x360
[ 4321.372131][   T73]      netlink_unicast+0x449/0x710
[ 4321.372131][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4321.372131][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4321.372131][   T73]      ___sys_sendmsg+0xee/0x170
[ 4321.372131][   T73]      __sys_sendmsg+0xcd/0x170
[ 4321.372131][   T73]      do_syscall_64+0xc6/0x1e0
[ 4321.372131][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4321.372131][   T73] 
[ 4321.374042][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4321.374042][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4321.374042][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4321.374042][   T73]      ipv6_find_idev+0x102/0x170
[ 4321.374042][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4321.374042][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4321.374042][   T73]      netlink_rcv_skb+0x130/0x360
[ 4321.374042][   T73]      netlink_unicast+0x449/0x710
[ 4321.374042][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4321.374042][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4321.374042][   T73]      ___sys_sendmsg+0xee/0x170
[ 4321.374042][   T73]      __sys_sendmsg+0xcd/0x170
[ 4321.374042][   T73]      do_syscall_64+0xc6/0x1e0
[ 4321.374042][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4321.374042][   T73] 
[ 4321.376165][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4321.376510][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4321.376510][   T73]      netdev_get_by_index+0x5e/0x80
[ 4321.376510][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4321.376510][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4321.376510][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4321.376510][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4321.376510][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4321.376510][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4321.376510][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4321.376510][   T73]      addrconf_dad_begin+0x310/0x670
[ 4321.376510][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4321.376510][   T73]      process_one_work+0x84d/0x18a0
[ 4321.376510][   T73]      worker_thread+0x587/0xd30
[ 4321.376510][   T73]      kthread+0x28a/0x350
[ 4321.376510][   T73]      ret_from_fork+0x31/0x70
[ 4321.376510][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4321.376510][   T73] 
[ 4321.378902][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4321.378902][   T73]      netdev_get_by_index+0x5e/0x80
[ 4321.378902][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4321.378902][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4321.378902][   T73]      ip6_route_add+0x1c/0x140
[ 4321.378902][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4321.378902][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4321.378902][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4321.378902][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4321.378902][   T73]      netlink_rcv_skb+0x130/0x360
[ 4321.378902][   T73]      netlink_unicast+0x449/0x710
[ 4321.378902][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4321.378902][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4321.378902][   T73]      ___sys_sendmsg+0xee/0x170
[ 4321.378902][   T73]      __sys_sendmsg+0xcd/0x170
[ 4321.378902][   T73]      do_syscall_64+0xc6/0x1e0
[ 4321.378902][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4321.378902][   T73] 
[ 4321.381396][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4321.381396][   T73]      netdev_get_by_index+0x5e/0x80
[ 4321.381396][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4321.381396][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4321.381396][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4321.381396][   T73]      ipv6_add_addr+0x411/0x2000
[ 4321.381396][   T73]      inet6_addr_add+0x30e/0xa40
[ 4321.381396][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4321.381396][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4321.381396][   T73]      netlink_rcv_skb+0x130/0x360
[ 4321.381396][   T73]      netlink_unicast+0x449/0x710
[ 4321.381396][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4321.381396][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4321.381396][   T73]      ___sys_sendmsg+0xee/0x170
[ 4321.381396][   T73]      __sys_sendmsg+0xcd/0x170
[ 4321.381396][   T73]      do_syscall_64+0xc6/0x1e0
[ 4321.381396][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4321.381396][   T73] 
[ 4321.383865][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4321.383865][   T73]      netdev_get_by_index+0x5e/0x80
[ 4321.383865][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4321.383865][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4321.383865][   T73]      ip6_route_add+0x1c/0x140
[ 4321.383865][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4321.383865][   T73]      addrconf_add_dev+0xe2/0x170
[ 4321.383865][   T73]      inet6_addr_add+0x12f/0xa40
[ 4321.383865][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4321.383865][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4321.383865][   T73]      netlink_rcv_skb+0x130/0x360
[ 4321.383865][   T73]      netlink_unicast+0x449/0x710
[ 4321.383865][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4321.383865][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4321.383865][   T73]      ___sys_sendmsg+0xee/0x170
[ 4321.383865][   T73]      __sys_sendmsg+0xcd/0x170
[ 4321.383865][   T73]      do_syscall_64+0xc6/0x1e0
[ 4321.383865][   T73] 
[ 4321.386284][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4321.386284][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4321.386284][   T73]      ipv6_find_idev+0x102/0x170
[ 4321.386284][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4321.386284][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4321.386284][   T73]      netlink_rcv_skb+0x130/0x360
[ 4321.386284][   T73]      netlink_unicast+0x449/0x710
[ 4321.386284][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4321.386284][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4321.386284][   T73]      ___sys_sendmsg+0xee/0x170
[ 4321.386284][   T73]      __sys_sendmsg+0xcd/0x170
[ 4321.386284][   T73]      do_syscall_64+0xc6/0x1e0
[ 4321.386284][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4321.386284][   T73] 
[ 4321.388196][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4321.388196][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4321.388196][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4321.388196][   T73]      ipv6_find_idev+0x102/0x170
[ 4321.388196][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4321.388196][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4321.388196][   T73]      netlink_rcv_skb+0x130/0x360
[ 4321.388196][   T73]      netlink_unicast+0x449/0x710
[ 4321.388196][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4321.388196][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4321.388196][   T73]      ___sys_sendmsg+0xee/0x170
[ 4321.388196][   T73]      __sys_sendmsg+0xcd/0x170
[ 4321.388196][   T73]      do_syscall_64+0xc6/0x1e0
[ 4321.388196][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4321.388196][   T73] 
[ 4321.390292][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4321.390620][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4321.390620][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4321.390620][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4321.390620][   T73]      fib6_nh_init+0xa22/0x1580
[ 4321.390620][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4321.390620][   T73]      ip6_route_add+0x1c/0x140
[ 4321.390620][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4321.390620][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4321.390620][   T73]      netlink_rcv_skb+0x130/0x360
[ 4321.390620][   T73]      netlink_unicast+0x449/0x710
[ 4321.390620][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4321.390620][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4321.390620][   T73]      ___sys_sendmsg+0xee/0x170
[ 4321.390620][   T73]      __sys_sendmsg+0xcd/0x170
[ 4321.390620][   T73]      do_syscall_64+0xc6/0x1e0
[ 4321.390620][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4321.390620][   T73] 
[ 4321.393082][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4321.393082][   T73]      dst_init+0x84/0x4a0
[ 4321.393082][   T73]      dst_alloc+0x97/0x150
[ 4321.393082][   T73]      ip6_dst_alloc+0x23/0x90
[ 4321.393082][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4321.393082][   T73]      ip6_pol_route+0x56f/0x840
[ 4321.393082][   T73]      fib6_rule_lookup+0x456/0x630
[ 4321.393082][   T73]      ip6_route_input+0x59c/0xa50
[ 4321.393082][   T73]      ipv6_rcv+0x397/0x810
[ 4321.393082][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4321.393082][   T73]      process_backlog+0x101/0x620
[ 4321.393082][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4321.393082][   T73]      net_rx_action+0x495/0xbe0
[ 4321.393082][   T73]      __do_softirq+0x1b5/0x7f6
[ 4321.393082][   T73] 
[ 4321.395265][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4321.395265][   T73]      netdev_get_by_index+0x5e/0x80
[ 4321.395265][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4321.395265][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4321.395265][   T73]      ip6_route_add+0x1c/0x140
[ 4321.395265][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4321.395265][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4321.395265][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4321.395265][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4321.395265][   T73]      netlink_rcv_skb+0x130/0x360
[ 4321.395265][   T73]      netlink_unicast+0x449/0x710
[ 4321.395265][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4321.395265][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4321.395265][   T73]      ___sys_sendmsg+0xee/0x170
[ 4321.395265][   T73]      __sys_sendmsg+0xcd/0x170
[ 4321.395265][   T73]      do_syscall_64+0xc6/0x1e0
[ 4321.395265][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4321.395265][   T73] 
[ 4321.397868][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4321.397868][   T73]      netdev_get_by_index+0x5e/0x80
[ 4321.397868][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4321.397868][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4321.397868][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4321.397868][   T73]      ipv6_add_addr+0x411/0x2000
[ 4321.397868][   T73]      inet6_addr_add+0x30e/0xa40
[ 4321.397868][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4321.397868][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4321.397868][   T73]      netlink_rcv_skb+0x130/0x360
[ 4321.397868][   T73]      netlink_unicast+0x449/0x710
[ 4321.397868][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4321.397868][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4321.397868][   T73]      ___sys_sendmsg+0xee/0x170
[ 4321.397868][   T73]      __sys_sendmsg+0xcd/0x170
[ 4321.397868][   T73]      do_syscall_64+0xc6/0x1e0
[ 4321.397868][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4321.397868][   T73] 
[ 4321.400475][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4321.400475][   T73]      netdev_get_by_index+0x5e/0x80
[ 4321.400475][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4321.400475][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4321.400475][   T73]      ip6_route_add+0x1c/0x140
[ 4321.400475][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4321.400475][   T73]      addrconf_add_dev+0xe2/0x170
[ 4321.400475][   T73]      inet6_addr_add+0x12f/0xa40
[ 4321.400475][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4321.400475][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4321.400475][   T73]      netlink_rcv_skb+0x130/0x360
[ 4321.400475][   T73]      netlink_unicast+0x449/0x710
[ 4321.400475][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4321.400475][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4321.400475][   T73]      ___sys_sendmsg+0xee/0x170
[ 4321.400475][   T73]      __sys_sendmsg+0xcd/0x170
[ 4321.400475][   T73]      do_syscall_64+0xc6/0x1e0
[ 4321.400475][   T73] 
[ 4321.403029][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4321.403029][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4321.403029][   T73]      ipv6_find_idev+0x102/0x170
[ 4321.403029][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4321.403029][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4321.403029][   T73]      netlink_rcv_skb+0x130/0x360
[ 4321.403029][   T73]      netlink_unicast+0x449/0x710
[ 4321.403029][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4321.403029][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4321.403029][   T73]      ___sys_sendmsg+0xee/0x170
[ 4321.403029][   T73]      __sys_sendmsg+0xcd/0x170
[ 4321.403029][   T73]      do_syscall_64+0xc6/0x1e0
[ 4321.403029][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4321.403029][   T73] 
[ 4321.405015][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4321.405015][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4321.405015][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4321.405015][   T73]      ipv6_find_idev+0x102/0x170
[ 4321.405015][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4321.405015][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4321.405015][   T73]      netlink_rcv_skb+0x130/0x360
[ 4321.405015][   T73]      netlink_unicast+0x449/0x710
[ 4321.405015][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4321.405015][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4321.405015][   T73]      ___sys_sendmsg+0xee/0x170
[ 4321.405015][   T73]      __sys_sendmsg+0xcd/0x170
[ 4321.405015][   T73]      do_syscall_64+0xc6/0x1e0
[ 4321.405015][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4321.405015][   T73] 
[ 4321.407238][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4321.407596][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4321.407596][   T73]      netdev_get_by_index+0x5e/0x80
[ 4321.407596][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4321.407596][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4321.407596][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4321.407596][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4321.407596][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4321.407596][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4321.407596][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4321.407596][   T73]      addrconf_dad_begin+0x310/0x670
[ 4321.407596][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4321.407596][   T73]      process_one_work+0x84d/0x18a0
[ 4321.407596][   T73]      worker_thread+0x587/0xd30
[ 4321.407596][   T73]      kthread+0x28a/0x350
[ 4321.407596][   T73]      ret_from_fork+0x31/0x70
[ 4321.407596][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4321.407596][   T73] 
[ 4321.410097][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4321.410097][   T73]      netdev_get_by_index+0x5e/0x80
[ 4321.410097][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4321.410097][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4321.410097][   T73]      ip6_route_add+0x1c/0x140
[ 4321.410097][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4321.410097][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4321.410097][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4321.410097][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4321.410097][   T73]      netlink_rcv_skb+0x130/0x360
[ 4321.410097][   T73]      netlink_unicast+0x449/0x710
[ 4321.410097][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4321.410097][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4321.410097][   T73]      ___sys_sendmsg+0xee/0x170
[ 4321.410097][   T73]      __sys_sendmsg+0xcd/0x170
[ 4321.410097][   T73]      do_syscall_64+0xc6/0x1e0
[ 4321.410097][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4321.410097][   T73] 
[ 4321.412710][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4321.412710][   T73]      netdev_get_by_index+0x5e/0x80
[ 4321.412710][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4321.412710][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4321.412710][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4321.412710][   T73]      ipv6_add_addr+0x411/0x2000
[ 4321.412710][   T73]      inet6_addr_add+0x30e/0xa40
[ 4321.412710][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4321.412710][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4321.412710][   T73]      netlink_rcv_skb+0x130/0x360
[ 4321.412710][   T73]      netlink_unicast+0x449/0x710
[ 4321.412710][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4321.412710][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4321.412710][   T73]      ___sys_sendmsg+0xee/0x170
[ 4321.412710][   T73]      __sys_sendmsg+0xcd/0x170
[ 4321.412710][   T73]      do_syscall_64+0xc6/0x1e0
[ 4321.412710][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4321.412710][   T73] 
[ 4321.415342][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4321.415342][   T73]      netdev_get_by_index+0x5e/0x80
[ 4321.415342][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4321.415342][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4321.415342][   T73]      ip6_route_add+0x1c/0x140
[ 4321.415342][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4321.415342][   T73]      addrconf_add_dev+0xe2/0x170
[ 4321.415342][   T73]      inet6_addr_add+0x12f/0xa40
[ 4321.415342][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4321.415342][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4321.415342][   T73]      netlink_rcv_skb+0x130/0x360
[ 4321.415342][   T73]      netlink_unicast+0x449/0x710
[ 4321.415342][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4321.415342][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4321.415342][   T73]      ___sys_sendmsg+0xee/0x170
[ 4321.415342][   T73]      __sys_sendmsg+0xcd/0x170
[ 4321.415342][   T73]      do_syscall_64+0xc6/0x1e0
[ 4321.415342][   T73] 
[ 4321.417847][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4321.417847][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4321.417847][   T73]      ipv6_find_idev+0x102/0x170
[ 4321.417847][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4321.417847][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4321.417847][   T73]      netlink_rcv_skb+0x130/0x360
[ 4321.417847][   T73]      netlink_unicast+0x449/0x710
[ 4321.417847][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4321.417847][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4321.417847][   T73]      ___sys_sendmsg+0xee/0x170
[ 4321.417847][   T73]      __sys_sendmsg+0xcd/0x170
[ 4321.417847][   T73]      do_syscall_64+0xc6/0x1e0
[ 4321.417847][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4321.417847][   T73] 
[ 4321.419887][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4321.419887][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4321.419887][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4321.419887][   T73]      ipv6_find_idev+0x102/0x170
[ 4321.419887][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4321.419887][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4321.419887][   T73]      netlink_rcv_skb+0x130/0x360
[ 4321.419887][   T73]      netlink_unicast+0x449/0x710
[ 4321.419887][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4321.419887][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4321.419887][   T73]      ___sys_sendmsg+0xee/0x170
[ 4321.419887][   T73]      __sys_sendmsg+0xcd/0x170
[ 4321.419887][   T73]      do_syscall_64+0xc6/0x1e0
[ 4321.419887][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4321.419887][   T73] 
[ 4331.663765][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4331.664301][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4331.664301][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4331.664301][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4331.664301][   T73]      fib6_nh_init+0xa22/0x1580
[ 4331.664301][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4331.664301][   T73]      ip6_route_add+0x1c/0x140
[ 4331.664301][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4331.664301][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4331.664301][   T73]      netlink_rcv_skb+0x130/0x360
[ 4331.664301][   T73]      netlink_unicast+0x449/0x710
[ 4331.664301][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4331.664301][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4331.664301][   T73]      ___sys_sendmsg+0xee/0x170
[ 4331.664301][   T73]      __sys_sendmsg+0xcd/0x170
[ 4331.664301][   T73]      do_syscall_64+0xc6/0x1e0
[ 4331.664301][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4331.664301][   T73] 
[ 4331.666654][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4331.666654][   T73]      dst_init+0x84/0x4a0
[ 4331.666654][   T73]      dst_alloc+0x97/0x150
[ 4331.666654][   T73]      ip6_dst_alloc+0x23/0x90
[ 4331.666654][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4331.666654][   T73]      ip6_pol_route+0x56f/0x840
[ 4331.666654][   T73]      fib6_rule_lookup+0x456/0x630
[ 4331.666654][   T73]      ip6_route_input+0x59c/0xa50
[ 4331.666654][   T73]      ipv6_rcv+0x397/0x810
[ 4331.666654][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4331.666654][   T73]      process_backlog+0x101/0x620
[ 4331.666654][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4331.666654][   T73]      net_rx_action+0x495/0xbe0
[ 4331.666654][   T73]      __do_softirq+0x1b5/0x7f6
[ 4331.666654][   T73] 
[ 4331.668689][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4331.668689][   T73]      netdev_get_by_index+0x5e/0x80
[ 4331.668689][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4331.668689][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4331.668689][   T73]      ip6_route_add+0x1c/0x140
[ 4331.668689][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4331.668689][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4331.668689][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4331.668689][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4331.668689][   T73]      netlink_rcv_skb+0x130/0x360
[ 4331.668689][   T73]      netlink_unicast+0x449/0x710
[ 4331.668689][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4331.668689][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4331.668689][   T73]      ___sys_sendmsg+0xee/0x170
[ 4331.668689][   T73]      __sys_sendmsg+0xcd/0x170
[ 4331.668689][   T73]      do_syscall_64+0xc6/0x1e0
[ 4331.668689][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4331.668689][   T73] 
[ 4331.671186][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4331.671186][   T73]      netdev_get_by_index+0x5e/0x80
[ 4331.671186][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4331.671186][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4331.671186][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4331.671186][   T73]      ipv6_add_addr+0x411/0x2000
[ 4331.671186][   T73]      inet6_addr_add+0x30e/0xa40
[ 4331.671186][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4331.671186][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4331.671186][   T73]      netlink_rcv_skb+0x130/0x360
[ 4331.671186][   T73]      netlink_unicast+0x449/0x710
[ 4331.671186][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4331.671186][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4331.671186][   T73]      ___sys_sendmsg+0xee/0x170
[ 4331.671186][   T73]      __sys_sendmsg+0xcd/0x170
[ 4331.671186][   T73]      do_syscall_64+0xc6/0x1e0
[ 4331.671186][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4331.671186][   T73] 
[ 4331.673663][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4331.673663][   T73]      netdev_get_by_index+0x5e/0x80
[ 4331.673663][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4331.673663][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4331.673663][   T73]      ip6_route_add+0x1c/0x140
[ 4331.673663][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4331.673663][   T73]      addrconf_add_dev+0xe2/0x170
[ 4331.673663][   T73]      inet6_addr_add+0x12f/0xa40
[ 4331.673663][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4331.673663][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4331.673663][   T73]      netlink_rcv_skb+0x130/0x360
[ 4331.673663][   T73]      netlink_unicast+0x449/0x710
[ 4331.673663][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4331.673663][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4331.673663][   T73]      ___sys_sendmsg+0xee/0x170
[ 4331.673663][   T73]      __sys_sendmsg+0xcd/0x170
[ 4331.673663][   T73]      do_syscall_64+0xc6/0x1e0
[ 4331.673663][   T73] 
[ 4331.676123][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4331.676123][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4331.676123][   T73]      ipv6_find_idev+0x102/0x170
[ 4331.676123][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4331.676123][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4331.676123][   T73]      netlink_rcv_skb+0x130/0x360
[ 4331.676123][   T73]      netlink_unicast+0x449/0x710
[ 4331.676123][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4331.676123][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4331.676123][   T73]      ___sys_sendmsg+0xee/0x170
[ 4331.676123][   T73]      __sys_sendmsg+0xcd/0x170
[ 4331.676123][   T73]      do_syscall_64+0xc6/0x1e0
[ 4331.676123][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4331.676123][   T73] 
[ 4331.678042][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4331.678042][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4331.678042][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4331.678042][   T73]      ipv6_find_idev+0x102/0x170
[ 4331.678042][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4331.678042][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4331.678042][   T73]      netlink_rcv_skb+0x130/0x360
[ 4331.678042][   T73]      netlink_unicast+0x449/0x710
[ 4331.678042][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4331.678042][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4331.678042][   T73]      ___sys_sendmsg+0xee/0x170
[ 4331.678042][   T73]      __sys_sendmsg+0xcd/0x170
[ 4331.678042][   T73]      do_syscall_64+0xc6/0x1e0
[ 4331.678042][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4331.678042][   T73] 
[ 4331.680155][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4331.680502][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4331.680502][   T73]      netdev_get_by_index+0x5e/0x80
[ 4331.680502][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4331.680502][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4331.680502][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4331.680502][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4331.680502][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4331.680502][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4331.680502][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4331.680502][   T73]      addrconf_dad_begin+0x310/0x670
[ 4331.680502][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4331.680502][   T73]      process_one_work+0x84d/0x18a0
[ 4331.680502][   T73]      worker_thread+0x587/0xd30
[ 4331.680502][   T73]      kthread+0x28a/0x350
[ 4331.680502][   T73]      ret_from_fork+0x31/0x70
[ 4331.680502][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4331.680502][   T73] 
[ 4331.682864][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4331.682864][   T73]      netdev_get_by_index+0x5e/0x80
[ 4331.682864][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4331.682864][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4331.682864][   T73]      ip6_route_add+0x1c/0x140
[ 4331.682864][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4331.682864][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4331.682864][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4331.682864][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4331.682864][   T73]      netlink_rcv_skb+0x130/0x360
[ 4331.682864][   T73]      netlink_unicast+0x449/0x710
[ 4331.682864][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4331.682864][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4331.682864][   T73]      ___sys_sendmsg+0xee/0x170
[ 4331.682864][   T73]      __sys_sendmsg+0xcd/0x170
[ 4331.682864][   T73]      do_syscall_64+0xc6/0x1e0
[ 4331.682864][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4331.682864][   T73] 
[ 4331.685354][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4331.685354][   T73]      netdev_get_by_index+0x5e/0x80
[ 4331.685354][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4331.685354][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4331.685354][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4331.685354][   T73]      ipv6_add_addr+0x411/0x2000
[ 4331.685354][   T73]      inet6_addr_add+0x30e/0xa40
[ 4331.685354][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4331.685354][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4331.685354][   T73]      netlink_rcv_skb+0x130/0x360
[ 4331.685354][   T73]      netlink_unicast+0x449/0x710
[ 4331.685354][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4331.685354][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4331.685354][   T73]      ___sys_sendmsg+0xee/0x170
[ 4331.685354][   T73]      __sys_sendmsg+0xcd/0x170
[ 4331.685354][   T73]      do_syscall_64+0xc6/0x1e0
[ 4331.685354][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4331.685354][   T73] 
[ 4331.687845][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4331.687845][   T73]      netdev_get_by_index+0x5e/0x80
[ 4331.687845][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4331.687845][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4331.687845][   T73]      ip6_route_add+0x1c/0x140
[ 4331.687845][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4331.687845][   T73]      addrconf_add_dev+0xe2/0x170
[ 4331.687845][   T73]      inet6_addr_add+0x12f/0xa40
[ 4331.687845][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4331.687845][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4331.687845][   T73]      netlink_rcv_skb+0x130/0x360
[ 4331.687845][   T73]      netlink_unicast+0x449/0x710
[ 4331.687845][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4331.687845][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4331.687845][   T73]      ___sys_sendmsg+0xee/0x170
[ 4331.687845][   T73]      __sys_sendmsg+0xcd/0x170
[ 4331.687845][   T73]      do_syscall_64+0xc6/0x1e0
[ 4331.687845][   T73] 
[ 4331.690292][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4331.690292][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4331.690292][   T73]      ipv6_find_idev+0x102/0x170
[ 4331.690292][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4331.690292][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4331.690292][   T73]      netlink_rcv_skb+0x130/0x360
[ 4331.690292][   T73]      netlink_unicast+0x449/0x710
[ 4331.690292][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4331.690292][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4331.690292][   T73]      ___sys_sendmsg+0xee/0x170
[ 4331.690292][   T73]      __sys_sendmsg+0xcd/0x170
[ 4331.690292][   T73]      do_syscall_64+0xc6/0x1e0
[ 4331.690292][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4331.690292][   T73] 
[ 4331.692205][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4331.692205][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4331.692205][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4331.692205][   T73]      ipv6_find_idev+0x102/0x170
[ 4331.692205][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4331.692205][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4331.692205][   T73]      netlink_rcv_skb+0x130/0x360
[ 4331.692205][   T73]      netlink_unicast+0x449/0x710
[ 4331.692205][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4331.692205][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4331.692205][   T73]      ___sys_sendmsg+0xee/0x170
[ 4331.692205][   T73]      __sys_sendmsg+0xcd/0x170
[ 4331.692205][   T73]      do_syscall_64+0xc6/0x1e0
[ 4331.692205][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4331.692205][   T73] 
[ 4331.694307][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4331.694654][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4331.694654][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4331.694654][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4331.694654][   T73]      fib6_nh_init+0xa22/0x1580
[ 4331.694654][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4331.694654][   T73]      ip6_route_add+0x1c/0x140
[ 4331.694654][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4331.694654][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4331.694654][   T73]      netlink_rcv_skb+0x130/0x360
[ 4331.694654][   T73]      netlink_unicast+0x449/0x710
[ 4331.694654][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4331.694654][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4331.694654][   T73]      ___sys_sendmsg+0xee/0x170
[ 4331.694654][   T73]      __sys_sendmsg+0xcd/0x170
[ 4331.694654][   T73]      do_syscall_64+0xc6/0x1e0
[ 4331.694654][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4331.694654][   T73] 
[ 4331.697108][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4331.697108][   T73]      dst_init+0x84/0x4a0
[ 4331.697108][   T73]      dst_alloc+0x97/0x150
[ 4331.697108][   T73]      ip6_dst_alloc+0x23/0x90
[ 4331.697108][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4331.697108][   T73]      ip6_pol_route+0x56f/0x840
[ 4331.697108][   T73]      fib6_rule_lookup+0x456/0x630
[ 4331.697108][   T73]      ip6_route_input+0x59c/0xa50
[ 4331.697108][   T73]      ipv6_rcv+0x397/0x810
[ 4331.697108][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4331.697108][   T73]      process_backlog+0x101/0x620
[ 4331.697108][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4331.697108][   T73]      net_rx_action+0x495/0xbe0
[ 4331.697108][   T73]      __do_softirq+0x1b5/0x7f6
[ 4331.697108][   T73] 
[ 4331.699368][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4331.699368][   T73]      netdev_get_by_index+0x5e/0x80
[ 4331.699368][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4331.699368][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4331.699368][   T73]      ip6_route_add+0x1c/0x140
[ 4331.699368][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4331.699368][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4331.699368][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4331.699368][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4331.699368][   T73]      netlink_rcv_skb+0x130/0x360
[ 4331.699368][   T73]      netlink_unicast+0x449/0x710
[ 4331.699368][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4331.699368][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4331.699368][   T73]      ___sys_sendmsg+0xee/0x170
[ 4331.699368][   T73]      __sys_sendmsg+0xcd/0x170
[ 4331.699368][   T73]      do_syscall_64+0xc6/0x1e0
[ 4331.699368][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4331.699368][   T73] 
[ 4331.702630][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4331.702630][   T73]      netdev_get_by_index+0x5e/0x80
[ 4331.702630][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4331.702630][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4331.702630][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4331.702630][   T73]      ipv6_add_addr+0x411/0x2000
[ 4331.702630][   T73]      inet6_addr_add+0x30e/0xa40
[ 4331.702630][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4331.702630][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4331.702630][   T73]      netlink_rcv_skb+0x130/0x360
[ 4331.702630][   T73]      netlink_unicast+0x449/0x710
[ 4331.702630][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4331.702630][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4331.702630][   T73]      ___sys_sendmsg+0xee/0x170
[ 4331.702630][   T73]      __sys_sendmsg+0xcd/0x170
[ 4331.702630][   T73]      do_syscall_64+0xc6/0x1e0
[ 4331.702630][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4331.702630][   T73] 
[ 4331.705363][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4331.705363][   T73]      netdev_get_by_index+0x5e/0x80
[ 4331.705363][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4331.705363][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4331.705363][   T73]      ip6_route_add+0x1c/0x140
[ 4331.705363][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4331.705363][   T73]      addrconf_add_dev+0xe2/0x170
[ 4331.705363][   T73]      inet6_addr_add+0x12f/0xa40
[ 4331.705363][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4331.705363][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4331.705363][   T73]      netlink_rcv_skb+0x130/0x360
[ 4331.705363][   T73]      netlink_unicast+0x449/0x710
[ 4331.705363][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4331.705363][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4331.705363][   T73]      ___sys_sendmsg+0xee/0x170
[ 4331.705363][   T73]      __sys_sendmsg+0xcd/0x170
[ 4331.705363][   T73]      do_syscall_64+0xc6/0x1e0
[ 4331.705363][   T73] 
[ 4331.708045][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4331.708045][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4331.708045][   T73]      ipv6_find_idev+0x102/0x170
[ 4331.708045][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4331.708045][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4331.708045][   T73]      netlink_rcv_skb+0x130/0x360
[ 4331.708045][   T73]      netlink_unicast+0x449/0x710
[ 4331.708045][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4331.708045][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4331.708045][   T73]      ___sys_sendmsg+0xee/0x170
[ 4331.708045][   T73]      __sys_sendmsg+0xcd/0x170
[ 4331.708045][   T73]      do_syscall_64+0xc6/0x1e0
[ 4331.708045][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4331.708045][   T73] 
[ 4331.710204][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4331.710204][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4331.710204][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4331.710204][   T73]      ipv6_find_idev+0x102/0x170
[ 4331.710204][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4331.710204][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4331.710204][   T73]      netlink_rcv_skb+0x130/0x360
[ 4331.710204][   T73]      netlink_unicast+0x449/0x710
[ 4331.710204][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4331.710204][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4331.710204][   T73]      ___sys_sendmsg+0xee/0x170
[ 4331.710204][   T73]      __sys_sendmsg+0xcd/0x170
[ 4331.710204][   T73]      do_syscall_64+0xc6/0x1e0
[ 4331.710204][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4331.710204][   T73] 
[ 4331.712886][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4331.713231][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4331.713231][   T73]      netdev_get_by_index+0x5e/0x80
[ 4331.713231][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4331.713231][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4331.713231][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4331.713231][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4331.713231][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4331.713231][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4331.713231][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4331.713231][   T73]      addrconf_dad_begin+0x310/0x670
[ 4331.713231][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4331.713231][   T73]      process_one_work+0x84d/0x18a0
[ 4331.713231][   T73]      worker_thread+0x587/0xd30
[ 4331.713231][   T73]      kthread+0x28a/0x350
[ 4331.713231][   T73]      ret_from_fork+0x31/0x70
[ 4331.713231][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4331.713231][   T73] 
[ 4331.718777][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4331.718777][   T73]      netdev_get_by_index+0x5e/0x80
[ 4331.718777][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4331.718777][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4331.718777][   T73]      ip6_route_add+0x1c/0x140
[ 4331.718777][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4331.718777][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4331.718777][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4331.718777][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4331.718777][   T73]      netlink_rcv_skb+0x130/0x360
[ 4331.718777][   T73]      netlink_unicast+0x449/0x710
[ 4331.718777][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4331.718777][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4331.718777][   T73]      ___sys_sendmsg+0xee/0x170
[ 4331.718777][   T73]      __sys_sendmsg+0xcd/0x170
[ 4331.718777][   T73]      do_syscall_64+0xc6/0x1e0
[ 4331.718777][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4331.718777][   T73] 
[ 4331.721525][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4331.721525][   T73]      netdev_get_by_index+0x5e/0x80
[ 4331.721525][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4331.721525][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4331.721525][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4331.721525][   T73]      ipv6_add_addr+0x411/0x2000
[ 4331.721525][   T73]      inet6_addr_add+0x30e/0xa40
[ 4331.721525][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4331.721525][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4331.721525][   T73]      netlink_rcv_skb+0x130/0x360
[ 4331.721525][   T73]      netlink_unicast+0x449/0x710
[ 4331.721525][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4331.721525][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4331.721525][   T73]      ___sys_sendmsg+0xee/0x170
[ 4331.721525][   T73]      __sys_sendmsg+0xcd/0x170
[ 4331.721525][   T73]      do_syscall_64+0xc6/0x1e0
[ 4331.721525][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4331.721525][   T73] 
[ 4331.724283][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4331.724283][   T73]      netdev_get_by_index+0x5e/0x80
[ 4331.724283][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4331.724283][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4331.724283][   T73]      ip6_route_add+0x1c/0x140
[ 4331.724283][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4331.724283][   T73]      addrconf_add_dev+0xe2/0x170
[ 4331.724283][   T73]      inet6_addr_add+0x12f/0xa40
[ 4331.724283][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4331.724283][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4331.724283][   T73]      netlink_rcv_skb+0x130/0x360
[ 4331.724283][   T73]      netlink_unicast+0x449/0x710
[ 4331.724283][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4331.724283][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4331.724283][   T73]      ___sys_sendmsg+0xee/0x170
[ 4331.724283][   T73]      __sys_sendmsg+0xcd/0x170
[ 4331.724283][   T73]      do_syscall_64+0xc6/0x1e0
[ 4331.724283][   T73] 
[ 4331.726983][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4331.726983][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4331.726983][   T73]      ipv6_find_idev+0x102/0x170
[ 4331.726983][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4331.726983][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4331.726983][   T73]      netlink_rcv_skb+0x130/0x360
[ 4331.726983][   T73]      netlink_unicast+0x449/0x710
[ 4331.726983][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4331.726983][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4331.726983][   T73]      ___sys_sendmsg+0xee/0x170
[ 4331.726983][   T73]      __sys_sendmsg+0xcd/0x170
[ 4331.726983][   T73]      do_syscall_64+0xc6/0x1e0
[ 4331.726983][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4331.726983][   T73] 
[ 4331.729106][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4331.729106][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4331.729106][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4331.729106][   T73]      ipv6_find_idev+0x102/0x170
[ 4331.729106][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4331.729106][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4331.729106][   T73]      netlink_rcv_skb+0x130/0x360
[ 4331.729106][   T73]      netlink_unicast+0x449/0x710
[ 4331.729106][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4331.729106][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4331.729106][   T73]      ___sys_sendmsg+0xee/0x170
[ 4331.729106][   T73]      __sys_sendmsg+0xcd/0x170
[ 4331.729106][   T73]      do_syscall_64+0xc6/0x1e0
[ 4331.729106][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4331.729106][   T73] 
[ 4341.775711][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4341.776255][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4341.776255][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4341.776255][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4341.776255][   T73]      fib6_nh_init+0xa22/0x1580
[ 4341.776255][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4341.776255][   T73]      ip6_route_add+0x1c/0x140
[ 4341.776255][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4341.776255][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4341.776255][   T73]      netlink_rcv_skb+0x130/0x360
[ 4341.776255][   T73]      netlink_unicast+0x449/0x710
[ 4341.776255][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4341.776255][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4341.776255][   T73]      ___sys_sendmsg+0xee/0x170
[ 4341.776255][   T73]      __sys_sendmsg+0xcd/0x170
[ 4341.776255][   T73]      do_syscall_64+0xc6/0x1e0
[ 4341.776255][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4341.776255][   T73] 
[ 4341.778607][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4341.778607][   T73]      dst_init+0x84/0x4a0
[ 4341.778607][   T73]      dst_alloc+0x97/0x150
[ 4341.778607][   T73]      ip6_dst_alloc+0x23/0x90
[ 4341.778607][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4341.778607][   T73]      ip6_pol_route+0x56f/0x840
[ 4341.778607][   T73]      fib6_rule_lookup+0x456/0x630
[ 4341.778607][   T73]      ip6_route_input+0x59c/0xa50
[ 4341.778607][   T73]      ipv6_rcv+0x397/0x810
[ 4341.778607][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4341.778607][   T73]      process_backlog+0x101/0x620
[ 4341.778607][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4341.778607][   T73]      net_rx_action+0x495/0xbe0
[ 4341.778607][   T73]      __do_softirq+0x1b5/0x7f6
[ 4341.778607][   T73] 
[ 4341.780648][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4341.780648][   T73]      netdev_get_by_index+0x5e/0x80
[ 4341.780648][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4341.780648][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4341.780648][   T73]      ip6_route_add+0x1c/0x140
[ 4341.780648][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4341.780648][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4341.780648][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4341.780648][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4341.780648][   T73]      netlink_rcv_skb+0x130/0x360
[ 4341.780648][   T73]      netlink_unicast+0x449/0x710
[ 4341.780648][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4341.780648][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4341.780648][   T73]      ___sys_sendmsg+0xee/0x170
[ 4341.780648][   T73]      __sys_sendmsg+0xcd/0x170
[ 4341.780648][   T73]      do_syscall_64+0xc6/0x1e0
[ 4341.780648][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4341.780648][   T73] 
[ 4341.783139][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4341.783139][   T73]      netdev_get_by_index+0x5e/0x80
[ 4341.783139][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4341.783139][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4341.783139][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4341.783139][   T73]      ipv6_add_addr+0x411/0x2000
[ 4341.783139][   T73]      inet6_addr_add+0x30e/0xa40
[ 4341.783139][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4341.783139][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4341.783139][   T73]      netlink_rcv_skb+0x130/0x360
[ 4341.783139][   T73]      netlink_unicast+0x449/0x710
[ 4341.783139][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4341.783139][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4341.783139][   T73]      ___sys_sendmsg+0xee/0x170
[ 4341.783139][   T73]      __sys_sendmsg+0xcd/0x170
[ 4341.783139][   T73]      do_syscall_64+0xc6/0x1e0
[ 4341.783139][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4341.783139][   T73] 
[ 4341.785645][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4341.785645][   T73]      netdev_get_by_index+0x5e/0x80
[ 4341.785645][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4341.785645][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4341.785645][   T73]      ip6_route_add+0x1c/0x140
[ 4341.785645][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4341.785645][   T73]      addrconf_add_dev+0xe2/0x170
[ 4341.785645][   T73]      inet6_addr_add+0x12f/0xa40
[ 4341.785645][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4341.785645][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4341.785645][   T73]      netlink_rcv_skb+0x130/0x360
[ 4341.785645][   T73]      netlink_unicast+0x449/0x710
[ 4341.785645][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4341.785645][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4341.785645][   T73]      ___sys_sendmsg+0xee/0x170
[ 4341.785645][   T73]      __sys_sendmsg+0xcd/0x170
[ 4341.785645][   T73]      do_syscall_64+0xc6/0x1e0
[ 4341.785645][   T73] 
[ 4341.787817][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4341.787817][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4341.787817][   T73]      ipv6_find_idev+0x102/0x170
[ 4341.787817][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4341.787817][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4341.787817][   T73]      netlink_rcv_skb+0x130/0x360
[ 4341.787817][   T73]      netlink_unicast+0x449/0x710
[ 4341.787817][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4341.787817][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4341.787817][   T73]      ___sys_sendmsg+0xee/0x170
[ 4341.787817][   T73]      __sys_sendmsg+0xcd/0x170
[ 4341.787817][   T73]      do_syscall_64+0xc6/0x1e0
[ 4341.787817][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4341.787817][   T73] 
[ 4341.789384][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4341.789384][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4341.789384][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4341.789384][   T73]      ipv6_find_idev+0x102/0x170
[ 4341.789384][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4341.789384][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4341.789384][   T73]      netlink_rcv_skb+0x130/0x360
[ 4341.789384][   T73]      netlink_unicast+0x449/0x710
[ 4341.789384][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4341.789384][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4341.789384][   T73]      ___sys_sendmsg+0xee/0x170
[ 4341.789384][   T73]      __sys_sendmsg+0xcd/0x170
[ 4341.789384][   T73]      do_syscall_64+0xc6/0x1e0
[ 4341.789384][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4341.789384][   T73] 
[ 4341.791120][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4341.791421][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4341.791421][   T73]      netdev_get_by_index+0x5e/0x80
[ 4341.791421][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4341.791421][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4341.791421][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4341.791421][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4341.791421][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4341.791421][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4341.791421][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4341.791421][   T73]      addrconf_dad_begin+0x310/0x670
[ 4341.791421][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4341.791421][   T73]      process_one_work+0x84d/0x18a0
[ 4341.791421][   T73]      worker_thread+0x587/0xd30
[ 4341.791421][   T73]      kthread+0x28a/0x350
[ 4341.791421][   T73]      ret_from_fork+0x31/0x70
[ 4341.791421][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4341.791421][   T73] 
[ 4341.793350][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4341.793350][   T73]      netdev_get_by_index+0x5e/0x80
[ 4341.793350][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4341.793350][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4341.793350][   T73]      ip6_route_add+0x1c/0x140
[ 4341.793350][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4341.793350][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4341.793350][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4341.793350][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4341.793350][   T73]      netlink_rcv_skb+0x130/0x360
[ 4341.793350][   T73]      netlink_unicast+0x449/0x710
[ 4341.793350][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4341.793350][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4341.793350][   T73]      ___sys_sendmsg+0xee/0x170
[ 4341.793350][   T73]      __sys_sendmsg+0xcd/0x170
[ 4341.793350][   T73]      do_syscall_64+0xc6/0x1e0
[ 4341.793350][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4341.793350][   T73] 
[ 4341.795365][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4341.795365][   T73]      netdev_get_by_index+0x5e/0x80
[ 4341.795365][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4341.795365][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4341.795365][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4341.795365][   T73]      ipv6_add_addr+0x411/0x2000
[ 4341.795365][   T73]      inet6_addr_add+0x30e/0xa40
[ 4341.795365][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4341.795365][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4341.795365][   T73]      netlink_rcv_skb+0x130/0x360
[ 4341.795365][   T73]      netlink_unicast+0x449/0x710
[ 4341.795365][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4341.795365][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4341.795365][   T73]      ___sys_sendmsg+0xee/0x170
[ 4341.795365][   T73]      __sys_sendmsg+0xcd/0x170
[ 4341.795365][   T73]      do_syscall_64+0xc6/0x1e0
[ 4341.795365][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4341.795365][   T73] 
[ 4341.797522][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4341.797522][   T73]      netdev_get_by_index+0x5e/0x80
[ 4341.797522][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4341.797522][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4341.797522][   T73]      ip6_route_add+0x1c/0x140
[ 4341.797522][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4341.797522][   T73]      addrconf_add_dev+0xe2/0x170
[ 4341.797522][   T73]      inet6_addr_add+0x12f/0xa40
[ 4341.797522][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4341.797522][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4341.797522][   T73]      netlink_rcv_skb+0x130/0x360
[ 4341.797522][   T73]      netlink_unicast+0x449/0x710
[ 4341.797522][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4341.797522][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4341.797522][   T73]      ___sys_sendmsg+0xee/0x170
[ 4341.797522][   T73]      __sys_sendmsg+0xcd/0x170
[ 4341.797522][   T73]      do_syscall_64+0xc6/0x1e0
[ 4341.797522][   T73] 
[ 4341.799977][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4341.799977][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4341.799977][   T73]      ipv6_find_idev+0x102/0x170
[ 4341.799977][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4341.799977][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4341.799977][   T73]      netlink_rcv_skb+0x130/0x360
[ 4341.799977][   T73]      netlink_unicast+0x449/0x710
[ 4341.799977][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4341.799977][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4341.799977][   T73]      ___sys_sendmsg+0xee/0x170
[ 4341.799977][   T73]      __sys_sendmsg+0xcd/0x170
[ 4341.799977][   T73]      do_syscall_64+0xc6/0x1e0
[ 4341.799977][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4341.799977][   T73] 
[ 4341.801896][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4341.801896][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4341.801896][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4341.801896][   T73]      ipv6_find_idev+0x102/0x170
[ 4341.801896][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4341.801896][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4341.801896][   T73]      netlink_rcv_skb+0x130/0x360
[ 4341.801896][   T73]      netlink_unicast+0x449/0x710
[ 4341.801896][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4341.801896][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4341.801896][   T73]      ___sys_sendmsg+0xee/0x170
[ 4341.801896][   T73]      __sys_sendmsg+0xcd/0x170
[ 4341.801896][   T73]      do_syscall_64+0xc6/0x1e0
[ 4341.801896][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4341.801896][   T73] 
[ 4341.804000][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4341.804351][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4341.804351][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4341.804351][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4341.804351][   T73]      fib6_nh_init+0xa22/0x1580
[ 4341.804351][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4341.804351][   T73]      ip6_route_add+0x1c/0x140
[ 4341.804351][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4341.804351][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4341.804351][   T73]      netlink_rcv_skb+0x130/0x360
[ 4341.804351][   T73]      netlink_unicast+0x449/0x710
[ 4341.804351][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4341.804351][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4341.804351][   T73]      ___sys_sendmsg+0xee/0x170
[ 4341.804351][   T73]      __sys_sendmsg+0xcd/0x170
[ 4341.804351][   T73]      do_syscall_64+0xc6/0x1e0
[ 4341.804351][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4341.804351][   T73] 
[ 4341.806865][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4341.806865][   T73]      dst_init+0x84/0x4a0
[ 4341.806865][   T73]      dst_alloc+0x97/0x150
[ 4341.806865][   T73]      ip6_dst_alloc+0x23/0x90
[ 4341.806865][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4341.806865][   T73]      ip6_pol_route+0x56f/0x840
[ 4341.806865][   T73]      fib6_rule_lookup+0x456/0x630
[ 4341.806865][   T73]      ip6_route_input+0x59c/0xa50
[ 4341.806865][   T73]      ipv6_rcv+0x397/0x810
[ 4341.806865][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4341.806865][   T73]      process_backlog+0x101/0x620
[ 4341.806865][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4341.806865][   T73]      net_rx_action+0x495/0xbe0
[ 4341.806865][   T73]      __do_softirq+0x1b5/0x7f6
[ 4341.806865][   T73] 
[ 4341.809125][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4341.809125][   T73]      netdev_get_by_index+0x5e/0x80
[ 4341.809125][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4341.809125][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4341.809125][   T73]      ip6_route_add+0x1c/0x140
[ 4341.809125][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4341.809125][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4341.809125][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4341.809125][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4341.809125][   T73]      netlink_rcv_skb+0x130/0x360
[ 4341.809125][   T73]      netlink_unicast+0x449/0x710
[ 4341.809125][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4341.809125][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4341.809125][   T73]      ___sys_sendmsg+0xee/0x170
[ 4341.809125][   T73]      __sys_sendmsg+0xcd/0x170
[ 4341.809125][   T73]      do_syscall_64+0xc6/0x1e0
[ 4341.809125][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4341.809125][   T73] 
[ 4341.811837][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4341.811837][   T73]      netdev_get_by_index+0x5e/0x80
[ 4341.811837][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4341.811837][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4341.811837][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4341.811837][   T73]      ipv6_add_addr+0x411/0x2000
[ 4341.811837][   T73]      inet6_addr_add+0x30e/0xa40
[ 4341.811837][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4341.811837][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4341.811837][   T73]      netlink_rcv_skb+0x130/0x360
[ 4341.811837][   T73]      netlink_unicast+0x449/0x710
[ 4341.811837][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4341.811837][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4341.811837][   T73]      ___sys_sendmsg+0xee/0x170
[ 4341.811837][   T73]      __sys_sendmsg+0xcd/0x170
[ 4341.811837][   T73]      do_syscall_64+0xc6/0x1e0
[ 4341.811837][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4341.811837][   T73] 
[ 4341.814567][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4341.814567][   T73]      netdev_get_by_index+0x5e/0x80
[ 4341.814567][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4341.814567][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4341.814567][   T73]      ip6_route_add+0x1c/0x140
[ 4341.814567][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4341.814567][   T73]      addrconf_add_dev+0xe2/0x170
[ 4341.814567][   T73]      inet6_addr_add+0x12f/0xa40
[ 4341.814567][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4341.814567][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4341.814567][   T73]      netlink_rcv_skb+0x130/0x360
[ 4341.814567][   T73]      netlink_unicast+0x449/0x710
[ 4341.814567][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4341.814567][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4341.814567][   T73]      ___sys_sendmsg+0xee/0x170
[ 4341.814567][   T73]      __sys_sendmsg+0xcd/0x170
[ 4341.814567][   T73]      do_syscall_64+0xc6/0x1e0
[ 4341.814567][   T73] 
[ 4341.817286][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4341.817286][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4341.817286][   T73]      ipv6_find_idev+0x102/0x170
[ 4341.817286][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4341.817286][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4341.817286][   T73]      netlink_rcv_skb+0x130/0x360
[ 4341.817286][   T73]      netlink_unicast+0x449/0x710
[ 4341.817286][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4341.817286][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4341.817286][   T73]      ___sys_sendmsg+0xee/0x170
[ 4341.817286][   T73]      __sys_sendmsg+0xcd/0x170
[ 4341.817286][   T73]      do_syscall_64+0xc6/0x1e0
[ 4341.817286][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4341.817286][   T73] 
[ 4341.819460][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4341.819460][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4341.819460][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4341.819460][   T73]      ipv6_find_idev+0x102/0x170
[ 4341.819460][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4341.819460][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4341.819460][   T73]      netlink_rcv_skb+0x130/0x360
[ 4341.819460][   T73]      netlink_unicast+0x449/0x710
[ 4341.819460][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4341.819460][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4341.819460][   T73]      ___sys_sendmsg+0xee/0x170
[ 4341.819460][   T73]      __sys_sendmsg+0xcd/0x170
[ 4341.819460][   T73]      do_syscall_64+0xc6/0x1e0
[ 4341.819460][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4341.819460][   T73] 
[ 4341.821735][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4341.822080][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4341.822080][   T73]      netdev_get_by_index+0x5e/0x80
[ 4341.822080][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4341.822080][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4341.822080][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4341.822080][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4341.822080][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4341.822080][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4341.822080][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4341.822080][   T73]      addrconf_dad_begin+0x310/0x670
[ 4341.822080][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4341.822080][   T73]      process_one_work+0x84d/0x18a0
[ 4341.822080][   T73]      worker_thread+0x587/0xd30
[ 4341.822080][   T73]      kthread+0x28a/0x350
[ 4341.822080][   T73]      ret_from_fork+0x31/0x70
[ 4341.822080][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4341.822080][   T73] 
[ 4341.824700][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4341.824700][   T73]      netdev_get_by_index+0x5e/0x80
[ 4341.824700][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4341.824700][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4341.824700][   T73]      ip6_route_add+0x1c/0x140
[ 4341.824700][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4341.824700][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4341.824700][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4341.824700][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4341.824700][   T73]      netlink_rcv_skb+0x130/0x360
[ 4341.824700][   T73]      netlink_unicast+0x449/0x710
[ 4341.824700][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4341.824700][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4341.824700][   T73]      ___sys_sendmsg+0xee/0x170
[ 4341.824700][   T73]      __sys_sendmsg+0xcd/0x170
[ 4341.824700][   T73]      do_syscall_64+0xc6/0x1e0
[ 4341.824700][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4341.824700][   T73] 
[ 4341.827422][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4341.827422][   T73]      netdev_get_by_index+0x5e/0x80
[ 4341.827422][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4341.827422][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4341.827422][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4341.827422][   T73]      ipv6_add_addr+0x411/0x2000
[ 4341.827422][   T73]      inet6_addr_add+0x30e/0xa40
[ 4341.827422][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4341.827422][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4341.827422][   T73]      netlink_rcv_skb+0x130/0x360
[ 4341.827422][   T73]      netlink_unicast+0x449/0x710
[ 4341.827422][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4341.827422][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4341.827422][   T73]      ___sys_sendmsg+0xee/0x170
[ 4341.827422][   T73]      __sys_sendmsg+0xcd/0x170
[ 4341.827422][   T73]      do_syscall_64+0xc6/0x1e0
[ 4341.827422][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4341.827422][   T73] 
[ 4341.830202][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4341.830202][   T73]      netdev_get_by_index+0x5e/0x80
[ 4341.830202][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4341.830202][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4341.830202][   T73]      ip6_route_add+0x1c/0x140
[ 4341.830202][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4341.830202][   T73]      addrconf_add_dev+0xe2/0x170
[ 4341.830202][   T73]      inet6_addr_add+0x12f/0xa40
[ 4341.830202][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4341.830202][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4341.830202][   T73]      netlink_rcv_skb+0x130/0x360
[ 4341.830202][   T73]      netlink_unicast+0x449/0x710
[ 4341.830202][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4341.830202][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4341.830202][   T73]      ___sys_sendmsg+0xee/0x170
[ 4341.830202][   T73]      __sys_sendmsg+0xcd/0x170
[ 4341.830202][   T73]      do_syscall_64+0xc6/0x1e0
[ 4341.830202][   T73] 
[ 4341.832823][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4341.832823][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4341.832823][   T73]      ipv6_find_idev+0x102/0x170
[ 4341.832823][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4341.832823][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4341.832823][   T73]      netlink_rcv_skb+0x130/0x360
[ 4341.832823][   T73]      netlink_unicast+0x449/0x710
[ 4341.832823][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4341.832823][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4341.832823][   T73]      ___sys_sendmsg+0xee/0x170
[ 4341.832823][   T73]      __sys_sendmsg+0xcd/0x170
[ 4341.832823][   T73]      do_syscall_64+0xc6/0x1e0
[ 4341.832823][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4341.832823][   T73] 
[ 4341.834936][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4341.834936][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4341.834936][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4341.834936][   T73]      ipv6_find_idev+0x102/0x170
[ 4341.834936][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4341.834936][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4341.834936][   T73]      netlink_rcv_skb+0x130/0x360
[ 4341.834936][   T73]      netlink_unicast+0x449/0x710
[ 4341.834936][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4341.834936][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4341.834936][   T73]      ___sys_sendmsg+0xee/0x170
[ 4341.834936][   T73]      __sys_sendmsg+0xcd/0x170
[ 4341.834936][   T73]      do_syscall_64+0xc6/0x1e0
[ 4341.834936][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4341.834936][   T73] 
[ 4352.087776][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4352.088295][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4352.088295][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4352.088295][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4352.088295][   T73]      fib6_nh_init+0xa22/0x1580
[ 4352.088295][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4352.088295][   T73]      ip6_route_add+0x1c/0x140
[ 4352.088295][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4352.088295][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4352.088295][   T73]      netlink_rcv_skb+0x130/0x360
[ 4352.088295][   T73]      netlink_unicast+0x449/0x710
[ 4352.088295][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4352.088295][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4352.088295][   T73]      ___sys_sendmsg+0xee/0x170
[ 4352.088295][   T73]      __sys_sendmsg+0xcd/0x170
[ 4352.088295][   T73]      do_syscall_64+0xc6/0x1e0
[ 4352.088295][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4352.088295][   T73] 
[ 4352.090682][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4352.090682][   T73]      dst_init+0x84/0x4a0
[ 4352.090682][   T73]      dst_alloc+0x97/0x150
[ 4352.090682][   T73]      ip6_dst_alloc+0x23/0x90
[ 4352.090682][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4352.090682][   T73]      ip6_pol_route+0x56f/0x840
[ 4352.090682][   T73]      fib6_rule_lookup+0x456/0x630
[ 4352.090682][   T73]      ip6_route_input+0x59c/0xa50
[ 4352.090682][   T73]      ipv6_rcv+0x397/0x810
[ 4352.090682][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4352.090682][   T73]      process_backlog+0x101/0x620
[ 4352.090682][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4352.090682][   T73]      net_rx_action+0x495/0xbe0
[ 4352.090682][   T73]      __do_softirq+0x1b5/0x7f6
[ 4352.090682][   T73] 
[ 4352.092742][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4352.092742][   T73]      netdev_get_by_index+0x5e/0x80
[ 4352.092742][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4352.092742][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4352.092742][   T73]      ip6_route_add+0x1c/0x140
[ 4352.092742][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4352.092742][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4352.092742][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4352.092742][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4352.092742][   T73]      netlink_rcv_skb+0x130/0x360
[ 4352.092742][   T73]      netlink_unicast+0x449/0x710
[ 4352.092742][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4352.092742][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4352.092742][   T73]      ___sys_sendmsg+0xee/0x170
[ 4352.092742][   T73]      __sys_sendmsg+0xcd/0x170
[ 4352.092742][   T73]      do_syscall_64+0xc6/0x1e0
[ 4352.092742][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4352.092742][   T73] 
[ 4352.095231][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4352.095231][   T73]      netdev_get_by_index+0x5e/0x80
[ 4352.095231][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4352.095231][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4352.095231][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4352.095231][   T73]      ipv6_add_addr+0x411/0x2000
[ 4352.095231][   T73]      inet6_addr_add+0x30e/0xa40
[ 4352.095231][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4352.095231][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4352.095231][   T73]      netlink_rcv_skb+0x130/0x360
[ 4352.095231][   T73]      netlink_unicast+0x449/0x710
[ 4352.095231][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4352.095231][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4352.095231][   T73]      ___sys_sendmsg+0xee/0x170
[ 4352.095231][   T73]      __sys_sendmsg+0xcd/0x170
[ 4352.095231][   T73]      do_syscall_64+0xc6/0x1e0
[ 4352.095231][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4352.095231][   T73] 
[ 4352.097707][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4352.097707][   T73]      netdev_get_by_index+0x5e/0x80
[ 4352.097707][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4352.097707][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4352.097707][   T73]      ip6_route_add+0x1c/0x140
[ 4352.097707][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4352.097707][   T73]      addrconf_add_dev+0xe2/0x170
[ 4352.097707][   T73]      inet6_addr_add+0x12f/0xa40
[ 4352.097707][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4352.097707][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4352.097707][   T73]      netlink_rcv_skb+0x130/0x360
[ 4352.097707][   T73]      netlink_unicast+0x449/0x710
[ 4352.097707][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4352.097707][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4352.097707][   T73]      ___sys_sendmsg+0xee/0x170
[ 4352.097707][   T73]      __sys_sendmsg+0xcd/0x170
[ 4352.097707][   T73]      do_syscall_64+0xc6/0x1e0
[ 4352.097707][   T73] 
[ 4352.100132][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4352.100132][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4352.100132][   T73]      ipv6_find_idev+0x102/0x170
[ 4352.100132][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4352.100132][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4352.100132][   T73]      netlink_rcv_skb+0x130/0x360
[ 4352.100132][   T73]      netlink_unicast+0x449/0x710
[ 4352.100132][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4352.100132][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4352.100132][   T73]      ___sys_sendmsg+0xee/0x170
[ 4352.100132][   T73]      __sys_sendmsg+0xcd/0x170
[ 4352.100132][   T73]      do_syscall_64+0xc6/0x1e0
[ 4352.100132][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4352.100132][   T73] 
[ 4352.102048][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4352.102048][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4352.102048][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4352.102048][   T73]      ipv6_find_idev+0x102/0x170
[ 4352.102048][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4352.102048][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4352.102048][   T73]      netlink_rcv_skb+0x130/0x360
[ 4352.102048][   T73]      netlink_unicast+0x449/0x710
[ 4352.102048][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4352.102048][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4352.102048][   T73]      ___sys_sendmsg+0xee/0x170
[ 4352.102048][   T73]      __sys_sendmsg+0xcd/0x170
[ 4352.102048][   T73]      do_syscall_64+0xc6/0x1e0
[ 4352.102048][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4352.102048][   T73] 
[ 4352.104140][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4352.104493][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4352.104493][   T73]      netdev_get_by_index+0x5e/0x80
[ 4352.104493][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4352.104493][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4352.104493][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4352.104493][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4352.104493][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4352.104493][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4352.104493][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4352.104493][   T73]      addrconf_dad_begin+0x310/0x670
[ 4352.104493][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4352.104493][   T73]      process_one_work+0x84d/0x18a0
[ 4352.104493][   T73]      worker_thread+0x587/0xd30
[ 4352.104493][   T73]      kthread+0x28a/0x350
[ 4352.104493][   T73]      ret_from_fork+0x31/0x70
[ 4352.104493][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4352.104493][   T73] 
[ 4352.106853][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4352.106853][   T73]      netdev_get_by_index+0x5e/0x80
[ 4352.106853][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4352.106853][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4352.106853][   T73]      ip6_route_add+0x1c/0x140
[ 4352.106853][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4352.106853][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4352.106853][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4352.106853][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4352.106853][   T73]      netlink_rcv_skb+0x130/0x360
[ 4352.106853][   T73]      netlink_unicast+0x449/0x710
[ 4352.106853][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4352.106853][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4352.106853][   T73]      ___sys_sendmsg+0xee/0x170
[ 4352.106853][   T73]      __sys_sendmsg+0xcd/0x170
[ 4352.106853][   T73]      do_syscall_64+0xc6/0x1e0
[ 4352.106853][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4352.106853][   T73] 
[ 4352.109309][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4352.109309][   T73]      netdev_get_by_index+0x5e/0x80
[ 4352.109309][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4352.109309][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4352.109309][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4352.109309][   T73]      ipv6_add_addr+0x411/0x2000
[ 4352.109309][   T73]      inet6_addr_add+0x30e/0xa40
[ 4352.109309][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4352.109309][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4352.109309][   T73]      netlink_rcv_skb+0x130/0x360
[ 4352.109309][   T73]      netlink_unicast+0x449/0x710
[ 4352.109309][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4352.109309][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4352.109309][   T73]      ___sys_sendmsg+0xee/0x170
[ 4352.109309][   T73]      __sys_sendmsg+0xcd/0x170
[ 4352.109309][   T73]      do_syscall_64+0xc6/0x1e0
[ 4352.109309][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4352.109309][   T73] 
[ 4352.111808][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4352.111808][   T73]      netdev_get_by_index+0x5e/0x80
[ 4352.111808][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4352.111808][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4352.111808][   T73]      ip6_route_add+0x1c/0x140
[ 4352.111808][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4352.111808][   T73]      addrconf_add_dev+0xe2/0x170
[ 4352.111808][   T73]      inet6_addr_add+0x12f/0xa40
[ 4352.111808][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4352.111808][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4352.111808][   T73]      netlink_rcv_skb+0x130/0x360
[ 4352.111808][   T73]      netlink_unicast+0x449/0x710
[ 4352.111808][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4352.111808][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4352.111808][   T73]      ___sys_sendmsg+0xee/0x170
[ 4352.111808][   T73]      __sys_sendmsg+0xcd/0x170
[ 4352.111808][   T73]      do_syscall_64+0xc6/0x1e0
[ 4352.111808][   T73] 
[ 4352.114241][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4352.114241][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4352.114241][   T73]      ipv6_find_idev+0x102/0x170
[ 4352.114241][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4352.114241][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4352.114241][   T73]      netlink_rcv_skb+0x130/0x360
[ 4352.114241][   T73]      netlink_unicast+0x449/0x710
[ 4352.114241][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4352.114241][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4352.114241][   T73]      ___sys_sendmsg+0xee/0x170
[ 4352.114241][   T73]      __sys_sendmsg+0xcd/0x170
[ 4352.114241][   T73]      do_syscall_64+0xc6/0x1e0
[ 4352.114241][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4352.114241][   T73] 
[ 4352.116145][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4352.116145][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4352.116145][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4352.116145][   T73]      ipv6_find_idev+0x102/0x170
[ 4352.116145][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4352.116145][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4352.116145][   T73]      netlink_rcv_skb+0x130/0x360
[ 4352.116145][   T73]      netlink_unicast+0x449/0x710
[ 4352.116145][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4352.116145][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4352.116145][   T73]      ___sys_sendmsg+0xee/0x170
[ 4352.116145][   T73]      __sys_sendmsg+0xcd/0x170
[ 4352.116145][   T73]      do_syscall_64+0xc6/0x1e0
[ 4352.116145][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4352.116145][   T73] 
[ 4352.118227][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4352.118558][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4352.118558][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4352.118558][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4352.118558][   T73]      fib6_nh_init+0xa22/0x1580
[ 4352.118558][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4352.118558][   T73]      ip6_route_add+0x1c/0x140
[ 4352.118558][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4352.118558][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4352.118558][   T73]      netlink_rcv_skb+0x130/0x360
[ 4352.118558][   T73]      netlink_unicast+0x449/0x710
[ 4352.118558][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4352.118558][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4352.118558][   T73]      ___sys_sendmsg+0xee/0x170
[ 4352.118558][   T73]      __sys_sendmsg+0xcd/0x170
[ 4352.118558][   T73]      do_syscall_64+0xc6/0x1e0
[ 4352.118558][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4352.118558][   T73] 
[ 4352.121057][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4352.121057][   T73]      dst_init+0x84/0x4a0
[ 4352.121057][   T73]      dst_alloc+0x97/0x150
[ 4352.121057][   T73]      ip6_dst_alloc+0x23/0x90
[ 4352.121057][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4352.121057][   T73]      ip6_pol_route+0x56f/0x840
[ 4352.121057][   T73]      fib6_rule_lookup+0x456/0x630
[ 4352.121057][   T73]      ip6_route_input+0x59c/0xa50
[ 4352.121057][   T73]      ipv6_rcv+0x397/0x810
[ 4352.121057][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4352.121057][   T73]      process_backlog+0x101/0x620
[ 4352.121057][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4352.121057][   T73]      net_rx_action+0x495/0xbe0
[ 4352.121057][   T73]      __do_softirq+0x1b5/0x7f6
[ 4352.121057][   T73] 
[ 4352.123308][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4352.123308][   T73]      netdev_get_by_index+0x5e/0x80
[ 4352.123308][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4352.123308][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4352.123308][   T73]      ip6_route_add+0x1c/0x140
[ 4352.123308][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4352.123308][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4352.123308][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4352.123308][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4352.123308][   T73]      netlink_rcv_skb+0x130/0x360
[ 4352.123308][   T73]      netlink_unicast+0x449/0x710
[ 4352.123308][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4352.123308][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4352.123308][   T73]      ___sys_sendmsg+0xee/0x170
[ 4352.123308][   T73]      __sys_sendmsg+0xcd/0x170
[ 4352.123308][   T73]      do_syscall_64+0xc6/0x1e0
[ 4352.123308][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4352.123308][   T73] 
[ 4352.126057][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4352.126057][   T73]      netdev_get_by_index+0x5e/0x80
[ 4352.126057][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4352.126057][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4352.126057][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4352.126057][   T73]      ipv6_add_addr+0x411/0x2000
[ 4352.126057][   T73]      inet6_addr_add+0x30e/0xa40
[ 4352.126057][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4352.126057][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4352.126057][   T73]      netlink_rcv_skb+0x130/0x360
[ 4352.126057][   T73]      netlink_unicast+0x449/0x710
[ 4352.126057][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4352.126057][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4352.126057][   T73]      ___sys_sendmsg+0xee/0x170
[ 4352.126057][   T73]      __sys_sendmsg+0xcd/0x170
[ 4352.126057][   T73]      do_syscall_64+0xc6/0x1e0
[ 4352.126057][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4352.126057][   T73] 
[ 4352.128770][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4352.128770][   T73]      netdev_get_by_index+0x5e/0x80
[ 4352.128770][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4352.128770][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4352.128770][   T73]      ip6_route_add+0x1c/0x140
[ 4352.128770][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4352.128770][   T73]      addrconf_add_dev+0xe2/0x170
[ 4352.128770][   T73]      inet6_addr_add+0x12f/0xa40
[ 4352.128770][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4352.128770][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4352.128770][   T73]      netlink_rcv_skb+0x130/0x360
[ 4352.128770][   T73]      netlink_unicast+0x449/0x710
[ 4352.128770][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4352.128770][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4352.128770][   T73]      ___sys_sendmsg+0xee/0x170
[ 4352.128770][   T73]      __sys_sendmsg+0xcd/0x170
[ 4352.128770][   T73]      do_syscall_64+0xc6/0x1e0
[ 4352.128770][   T73] 
[ 4352.131461][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4352.131461][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4352.131461][   T73]      ipv6_find_idev+0x102/0x170
[ 4352.131461][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4352.131461][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4352.131461][   T73]      netlink_rcv_skb+0x130/0x360
[ 4352.131461][   T73]      netlink_unicast+0x449/0x710
[ 4352.131461][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4352.131461][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4352.131461][   T73]      ___sys_sendmsg+0xee/0x170
[ 4352.131461][   T73]      __sys_sendmsg+0xcd/0x170
[ 4352.131461][   T73]      do_syscall_64+0xc6/0x1e0
[ 4352.131461][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4352.131461][   T73] 
[ 4352.133612][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4352.133612][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4352.133612][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4352.133612][   T73]      ipv6_find_idev+0x102/0x170
[ 4352.133612][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4352.133612][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4352.133612][   T73]      netlink_rcv_skb+0x130/0x360
[ 4352.133612][   T73]      netlink_unicast+0x449/0x710
[ 4352.133612][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4352.133612][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4352.133612][   T73]      ___sys_sendmsg+0xee/0x170
[ 4352.133612][   T73]      __sys_sendmsg+0xcd/0x170
[ 4352.133612][   T73]      do_syscall_64+0xc6/0x1e0
[ 4352.133612][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4352.133612][   T73] 
[ 4352.135882][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4352.136213][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4352.136213][   T73]      netdev_get_by_index+0x5e/0x80
[ 4352.136213][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4352.136213][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4352.136213][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4352.136213][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4352.136213][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4352.136213][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4352.136213][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4352.136213][   T73]      addrconf_dad_begin+0x310/0x670
[ 4352.136213][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4352.136213][   T73]      process_one_work+0x84d/0x18a0
[ 4352.136213][   T73]      worker_thread+0x587/0xd30
[ 4352.136213][   T73]      kthread+0x28a/0x350
[ 4352.136213][   T73]      ret_from_fork+0x31/0x70
[ 4352.136213][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4352.136213][   T73] 
[ 4352.138887][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4352.138887][   T73]      netdev_get_by_index+0x5e/0x80
[ 4352.138887][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4352.138887][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4352.138887][   T73]      ip6_route_add+0x1c/0x140
[ 4352.138887][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4352.138887][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4352.138887][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4352.138887][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4352.138887][   T73]      netlink_rcv_skb+0x130/0x360
[ 4352.138887][   T73]      netlink_unicast+0x449/0x710
[ 4352.138887][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4352.138887][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4352.138887][   T73]      ___sys_sendmsg+0xee/0x170
[ 4352.138887][   T73]      __sys_sendmsg+0xcd/0x170
[ 4352.138887][   T73]      do_syscall_64+0xc6/0x1e0
[ 4352.138887][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4352.138887][   T73] 
[ 4352.141634][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4352.141634][   T73]      netdev_get_by_index+0x5e/0x80
[ 4352.141634][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4352.141634][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4352.141634][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4352.141634][   T73]      ipv6_add_addr+0x411/0x2000
[ 4352.141634][   T73]      inet6_addr_add+0x30e/0xa40
[ 4352.141634][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4352.141634][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4352.141634][   T73]      netlink_rcv_skb+0x130/0x360
[ 4352.141634][   T73]      netlink_unicast+0x449/0x710
[ 4352.141634][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4352.141634][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4352.141634][   T73]      ___sys_sendmsg+0xee/0x170
[ 4352.141634][   T73]      __sys_sendmsg+0xcd/0x170
[ 4352.141634][   T73]      do_syscall_64+0xc6/0x1e0
[ 4352.141634][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4352.141634][   T73] 
[ 4352.144437][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4352.144437][   T73]      netdev_get_by_index+0x5e/0x80
[ 4352.144437][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4352.144437][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4352.144437][   T73]      ip6_route_add+0x1c/0x140
[ 4352.144437][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4352.144437][   T73]      addrconf_add_dev+0xe2/0x170
[ 4352.144437][   T73]      inet6_addr_add+0x12f/0xa40
[ 4352.144437][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4352.144437][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4352.144437][   T73]      netlink_rcv_skb+0x130/0x360
[ 4352.144437][   T73]      netlink_unicast+0x449/0x710
[ 4352.144437][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4352.144437][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4352.144437][   T73]      ___sys_sendmsg+0xee/0x170
[ 4352.144437][   T73]      __sys_sendmsg+0xcd/0x170
[ 4352.144437][   T73]      do_syscall_64+0xc6/0x1e0
[ 4352.144437][   T73] 
[ 4352.147090][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4352.147090][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4352.147090][   T73]      ipv6_find_idev+0x102/0x170
[ 4352.147090][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4352.147090][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4352.147090][   T73]      netlink_rcv_skb+0x130/0x360
[ 4352.147090][   T73]      netlink_unicast+0x449/0x710
[ 4352.147090][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4352.147090][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4352.147090][   T73]      ___sys_sendmsg+0xee/0x170
[ 4352.147090][   T73]      __sys_sendmsg+0xcd/0x170
[ 4352.147090][   T73]      do_syscall_64+0xc6/0x1e0
[ 4352.147090][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4352.147090][   T73] 
[ 4352.149201][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4352.149201][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4352.149201][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4352.149201][   T73]      ipv6_find_idev+0x102/0x170
[ 4352.149201][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4352.149201][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4352.149201][   T73]      netlink_rcv_skb+0x130/0x360
[ 4352.149201][   T73]      netlink_unicast+0x449/0x710
[ 4352.149201][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4352.149201][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4352.149201][   T73]      ___sys_sendmsg+0xee/0x170
[ 4352.149201][   T73]      __sys_sendmsg+0xcd/0x170
[ 4352.149201][   T73]      do_syscall_64+0xc6/0x1e0
[ 4352.149201][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4352.149201][   T73] 
[ 4362.407700][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4362.408209][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4362.408209][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4362.408209][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4362.408209][   T73]      fib6_nh_init+0xa22/0x1580
[ 4362.408209][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4362.408209][   T73]      ip6_route_add+0x1c/0x140
[ 4362.408209][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4362.408209][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4362.408209][   T73]      netlink_rcv_skb+0x130/0x360
[ 4362.408209][   T73]      netlink_unicast+0x449/0x710
[ 4362.408209][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4362.408209][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4362.408209][   T73]      ___sys_sendmsg+0xee/0x170
[ 4362.408209][   T73]      __sys_sendmsg+0xcd/0x170
[ 4362.408209][   T73]      do_syscall_64+0xc6/0x1e0
[ 4362.408209][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4362.408209][   T73] 
[ 4362.410607][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4362.410607][   T73]      dst_init+0x84/0x4a0
[ 4362.410607][   T73]      dst_alloc+0x97/0x150
[ 4362.410607][   T73]      ip6_dst_alloc+0x23/0x90
[ 4362.410607][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4362.410607][   T73]      ip6_pol_route+0x56f/0x840
[ 4362.410607][   T73]      fib6_rule_lookup+0x456/0x630
[ 4362.410607][   T73]      ip6_route_input+0x59c/0xa50
[ 4362.410607][   T73]      ipv6_rcv+0x397/0x810
[ 4362.410607][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4362.410607][   T73]      process_backlog+0x101/0x620
[ 4362.410607][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4362.410607][   T73]      net_rx_action+0x495/0xbe0
[ 4362.410607][   T73]      __do_softirq+0x1b5/0x7f6
[ 4362.410607][   T73] 
[ 4362.412659][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4362.412659][   T73]      netdev_get_by_index+0x5e/0x80
[ 4362.412659][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4362.412659][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4362.412659][   T73]      ip6_route_add+0x1c/0x140
[ 4362.412659][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4362.412659][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4362.412659][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4362.412659][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4362.412659][   T73]      netlink_rcv_skb+0x130/0x360
[ 4362.412659][   T73]      netlink_unicast+0x449/0x710
[ 4362.412659][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4362.412659][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4362.412659][   T73]      ___sys_sendmsg+0xee/0x170
[ 4362.412659][   T73]      __sys_sendmsg+0xcd/0x170
[ 4362.412659][   T73]      do_syscall_64+0xc6/0x1e0
[ 4362.412659][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4362.412659][   T73] 
[ 4362.415205][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4362.415205][   T73]      netdev_get_by_index+0x5e/0x80
[ 4362.415205][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4362.415205][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4362.415205][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4362.415205][   T73]      ipv6_add_addr+0x411/0x2000
[ 4362.415205][   T73]      inet6_addr_add+0x30e/0xa40
[ 4362.415205][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4362.415205][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4362.415205][   T73]      netlink_rcv_skb+0x130/0x360
[ 4362.415205][   T73]      netlink_unicast+0x449/0x710
[ 4362.415205][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4362.415205][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4362.415205][   T73]      ___sys_sendmsg+0xee/0x170
[ 4362.415205][   T73]      __sys_sendmsg+0xcd/0x170
[ 4362.415205][   T73]      do_syscall_64+0xc6/0x1e0
[ 4362.415205][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4362.415205][   T73] 
[ 4362.417716][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4362.417716][   T73]      netdev_get_by_index+0x5e/0x80
[ 4362.417716][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4362.417716][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4362.417716][   T73]      ip6_route_add+0x1c/0x140
[ 4362.417716][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4362.417716][   T73]      addrconf_add_dev+0xe2/0x170
[ 4362.417716][   T73]      inet6_addr_add+0x12f/0xa40
[ 4362.417716][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4362.417716][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4362.417716][   T73]      netlink_rcv_skb+0x130/0x360
[ 4362.417716][   T73]      netlink_unicast+0x449/0x710
[ 4362.417716][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4362.417716][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4362.417716][   T73]      ___sys_sendmsg+0xee/0x170
[ 4362.417716][   T73]      __sys_sendmsg+0xcd/0x170
[ 4362.417716][   T73]      do_syscall_64+0xc6/0x1e0
[ 4362.417716][   T73] 
[ 4362.420184][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4362.420184][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4362.420184][   T73]      ipv6_find_idev+0x102/0x170
[ 4362.420184][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4362.420184][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4362.420184][   T73]      netlink_rcv_skb+0x130/0x360
[ 4362.420184][   T73]      netlink_unicast+0x449/0x710
[ 4362.420184][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4362.420184][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4362.420184][   T73]      ___sys_sendmsg+0xee/0x170
[ 4362.420184][   T73]      __sys_sendmsg+0xcd/0x170
[ 4362.420184][   T73]      do_syscall_64+0xc6/0x1e0
[ 4362.420184][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4362.420184][   T73] 
[ 4362.422103][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4362.422103][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4362.422103][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4362.422103][   T73]      ipv6_find_idev+0x102/0x170
[ 4362.422103][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4362.422103][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4362.422103][   T73]      netlink_rcv_skb+0x130/0x360
[ 4362.422103][   T73]      netlink_unicast+0x449/0x710
[ 4362.422103][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4362.422103][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4362.422103][   T73]      ___sys_sendmsg+0xee/0x170
[ 4362.422103][   T73]      __sys_sendmsg+0xcd/0x170
[ 4362.422103][   T73]      do_syscall_64+0xc6/0x1e0
[ 4362.422103][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4362.422103][   T73] 
[ 4362.424219][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4362.424579][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4362.424579][   T73]      netdev_get_by_index+0x5e/0x80
[ 4362.424579][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4362.424579][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4362.424579][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4362.424579][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4362.424579][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4362.424579][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4362.424579][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4362.424579][   T73]      addrconf_dad_begin+0x310/0x670
[ 4362.424579][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4362.424579][   T73]      process_one_work+0x84d/0x18a0
[ 4362.424579][   T73]      worker_thread+0x587/0xd30
[ 4362.424579][   T73]      kthread+0x28a/0x350
[ 4362.424579][   T73]      ret_from_fork+0x31/0x70
[ 4362.424579][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4362.424579][   T73] 
[ 4362.426985][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4362.426985][   T73]      netdev_get_by_index+0x5e/0x80
[ 4362.426985][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4362.426985][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4362.426985][   T73]      ip6_route_add+0x1c/0x140
[ 4362.426985][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4362.426985][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4362.426985][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4362.426985][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4362.426985][   T73]      netlink_rcv_skb+0x130/0x360
[ 4362.426985][   T73]      netlink_unicast+0x449/0x710
[ 4362.426985][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4362.426985][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4362.426985][   T73]      ___sys_sendmsg+0xee/0x170
[ 4362.426985][   T73]      __sys_sendmsg+0xcd/0x170
[ 4362.426985][   T73]      do_syscall_64+0xc6/0x1e0
[ 4362.426985][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4362.426985][   T73] 
[ 4362.429471][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4362.429471][   T73]      netdev_get_by_index+0x5e/0x80
[ 4362.429471][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4362.429471][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4362.429471][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4362.429471][   T73]      ipv6_add_addr+0x411/0x2000
[ 4362.429471][   T73]      inet6_addr_add+0x30e/0xa40
[ 4362.429471][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4362.429471][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4362.429471][   T73]      netlink_rcv_skb+0x130/0x360
[ 4362.429471][   T73]      netlink_unicast+0x449/0x710
[ 4362.429471][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4362.429471][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4362.429471][   T73]      ___sys_sendmsg+0xee/0x170
[ 4362.429471][   T73]      __sys_sendmsg+0xcd/0x170
[ 4362.429471][   T73]      do_syscall_64+0xc6/0x1e0
[ 4362.429471][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4362.429471][   T73] 
[ 4362.431950][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4362.431950][   T73]      netdev_get_by_index+0x5e/0x80
[ 4362.431950][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4362.431950][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4362.431950][   T73]      ip6_route_add+0x1c/0x140
[ 4362.431950][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4362.431950][   T73]      addrconf_add_dev+0xe2/0x170
[ 4362.431950][   T73]      inet6_addr_add+0x12f/0xa40
[ 4362.431950][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4362.431950][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4362.431950][   T73]      netlink_rcv_skb+0x130/0x360
[ 4362.431950][   T73]      netlink_unicast+0x449/0x710
[ 4362.431950][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4362.431950][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4362.431950][   T73]      ___sys_sendmsg+0xee/0x170
[ 4362.431950][   T73]      __sys_sendmsg+0xcd/0x170
[ 4362.431950][   T73]      do_syscall_64+0xc6/0x1e0
[ 4362.431950][   T73] 
[ 4362.434384][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4362.434384][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4362.434384][   T73]      ipv6_find_idev+0x102/0x170
[ 4362.434384][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4362.434384][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4362.434384][   T73]      netlink_rcv_skb+0x130/0x360
[ 4362.434384][   T73]      netlink_unicast+0x449/0x710
[ 4362.434384][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4362.434384][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4362.434384][   T73]      ___sys_sendmsg+0xee/0x170
[ 4362.434384][   T73]      __sys_sendmsg+0xcd/0x170
[ 4362.434384][   T73]      do_syscall_64+0xc6/0x1e0
[ 4362.434384][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4362.434384][   T73] 
[ 4362.436288][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4362.436288][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4362.436288][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4362.436288][   T73]      ipv6_find_idev+0x102/0x170
[ 4362.436288][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4362.436288][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4362.436288][   T73]      netlink_rcv_skb+0x130/0x360
[ 4362.436288][   T73]      netlink_unicast+0x449/0x710
[ 4362.436288][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4362.436288][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4362.436288][   T73]      ___sys_sendmsg+0xee/0x170
[ 4362.436288][   T73]      __sys_sendmsg+0xcd/0x170
[ 4362.436288][   T73]      do_syscall_64+0xc6/0x1e0
[ 4362.436288][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4362.436288][   T73] 
[ 4362.438391][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4362.438735][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4362.438735][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4362.438735][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4362.438735][   T73]      fib6_nh_init+0xa22/0x1580
[ 4362.438735][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4362.438735][   T73]      ip6_route_add+0x1c/0x140
[ 4362.438735][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4362.438735][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4362.438735][   T73]      netlink_rcv_skb+0x130/0x360
[ 4362.438735][   T73]      netlink_unicast+0x449/0x710
[ 4362.438735][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4362.438735][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4362.438735][   T73]      ___sys_sendmsg+0xee/0x170
[ 4362.438735][   T73]      __sys_sendmsg+0xcd/0x170
[ 4362.438735][   T73]      do_syscall_64+0xc6/0x1e0
[ 4362.438735][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4362.438735][   T73] 
[ 4362.441251][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4362.441251][   T73]      dst_init+0x84/0x4a0
[ 4362.441251][   T73]      dst_alloc+0x97/0x150
[ 4362.441251][   T73]      ip6_dst_alloc+0x23/0x90
[ 4362.441251][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4362.441251][   T73]      ip6_pol_route+0x56f/0x840
[ 4362.441251][   T73]      fib6_rule_lookup+0x456/0x630
[ 4362.441251][   T73]      ip6_route_input+0x59c/0xa50
[ 4362.441251][   T73]      ipv6_rcv+0x397/0x810
[ 4362.441251][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4362.441251][   T73]      process_backlog+0x101/0x620
[ 4362.441251][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4362.441251][   T73]      net_rx_action+0x495/0xbe0
[ 4362.441251][   T73]      __do_softirq+0x1b5/0x7f6
[ 4362.441251][   T73] 
[ 4362.443522][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4362.443522][   T73]      netdev_get_by_index+0x5e/0x80
[ 4362.443522][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4362.443522][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4362.443522][   T73]      ip6_route_add+0x1c/0x140
[ 4362.443522][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4362.443522][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4362.443522][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4362.443522][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4362.443522][   T73]      netlink_rcv_skb+0x130/0x360
[ 4362.443522][   T73]      netlink_unicast+0x449/0x710
[ 4362.443522][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4362.443522][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4362.443522][   T73]      ___sys_sendmsg+0xee/0x170
[ 4362.443522][   T73]      __sys_sendmsg+0xcd/0x170
[ 4362.443522][   T73]      do_syscall_64+0xc6/0x1e0
[ 4362.443522][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4362.443522][   T73] 
[ 4362.446260][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4362.446260][   T73]      netdev_get_by_index+0x5e/0x80
[ 4362.446260][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4362.446260][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4362.446260][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4362.446260][   T73]      ipv6_add_addr+0x411/0x2000
[ 4362.446260][   T73]      inet6_addr_add+0x30e/0xa40
[ 4362.446260][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4362.446260][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4362.446260][   T73]      netlink_rcv_skb+0x130/0x360
[ 4362.446260][   T73]      netlink_unicast+0x449/0x710
[ 4362.446260][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4362.446260][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4362.446260][   T73]      ___sys_sendmsg+0xee/0x170
[ 4362.446260][   T73]      __sys_sendmsg+0xcd/0x170
[ 4362.446260][   T73]      do_syscall_64+0xc6/0x1e0
[ 4362.446260][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4362.446260][   T73] 
[ 4362.448986][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4362.448986][   T73]      netdev_get_by_index+0x5e/0x80
[ 4362.448986][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4362.448986][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4362.448986][   T73]      ip6_route_add+0x1c/0x140
[ 4362.448986][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4362.448986][   T73]      addrconf_add_dev+0xe2/0x170
[ 4362.448986][   T73]      inet6_addr_add+0x12f/0xa40
[ 4362.448986][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4362.448986][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4362.448986][   T73]      netlink_rcv_skb+0x130/0x360
[ 4362.448986][   T73]      netlink_unicast+0x449/0x710
[ 4362.448986][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4362.448986][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4362.448986][   T73]      ___sys_sendmsg+0xee/0x170
[ 4362.448986][   T73]      __sys_sendmsg+0xcd/0x170
[ 4362.448986][   T73]      do_syscall_64+0xc6/0x1e0
[ 4362.448986][   T73] 
[ 4362.451669][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4362.451669][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4362.451669][   T73]      ipv6_find_idev+0x102/0x170
[ 4362.451669][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4362.451669][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4362.451669][   T73]      netlink_rcv_skb+0x130/0x360
[ 4362.451669][   T73]      netlink_unicast+0x449/0x710
[ 4362.451669][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4362.451669][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4362.451669][   T73]      ___sys_sendmsg+0xee/0x170
[ 4362.451669][   T73]      __sys_sendmsg+0xcd/0x170
[ 4362.451669][   T73]      do_syscall_64+0xc6/0x1e0
[ 4362.451669][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4362.451669][   T73] 
[ 4362.453829][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4362.453829][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4362.453829][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4362.453829][   T73]      ipv6_find_idev+0x102/0x170
[ 4362.453829][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4362.453829][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4362.453829][   T73]      netlink_rcv_skb+0x130/0x360
[ 4362.453829][   T73]      netlink_unicast+0x449/0x710
[ 4362.453829][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4362.453829][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4362.453829][   T73]      ___sys_sendmsg+0xee/0x170
[ 4362.453829][   T73]      __sys_sendmsg+0xcd/0x170
[ 4362.453829][   T73]      do_syscall_64+0xc6/0x1e0
[ 4362.453829][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4362.453829][   T73] 
[ 4362.456112][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4362.456449][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4362.456449][   T73]      netdev_get_by_index+0x5e/0x80
[ 4362.456449][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4362.456449][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4362.456449][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4362.456449][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4362.456449][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4362.456449][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4362.456449][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4362.456449][   T73]      addrconf_dad_begin+0x310/0x670
[ 4362.456449][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4362.456449][   T73]      process_one_work+0x84d/0x18a0
[ 4362.456449][   T73]      worker_thread+0x587/0xd30
[ 4362.456449][   T73]      kthread+0x28a/0x350
[ 4362.456449][   T73]      ret_from_fork+0x31/0x70
[ 4362.456449][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4362.456449][   T73] 
[ 4362.459066][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4362.459066][   T73]      netdev_get_by_index+0x5e/0x80
[ 4362.459066][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4362.459066][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4362.459066][   T73]      ip6_route_add+0x1c/0x140
[ 4362.459066][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4362.459066][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4362.459066][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4362.459066][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4362.459066][   T73]      netlink_rcv_skb+0x130/0x360
[ 4362.459066][   T73]      netlink_unicast+0x449/0x710
[ 4362.459066][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4362.459066][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4362.459066][   T73]      ___sys_sendmsg+0xee/0x170
[ 4362.459066][   T73]      __sys_sendmsg+0xcd/0x170
[ 4362.459066][   T73]      do_syscall_64+0xc6/0x1e0
[ 4362.459066][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4362.459066][   T73] 
[ 4362.461804][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4362.461804][   T73]      netdev_get_by_index+0x5e/0x80
[ 4362.461804][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4362.461804][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4362.461804][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4362.461804][   T73]      ipv6_add_addr+0x411/0x2000
[ 4362.461804][   T73]      inet6_addr_add+0x30e/0xa40
[ 4362.461804][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4362.461804][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4362.461804][   T73]      netlink_rcv_skb+0x130/0x360
[ 4362.461804][   T73]      netlink_unicast+0x449/0x710
[ 4362.461804][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4362.461804][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4362.461804][   T73]      ___sys_sendmsg+0xee/0x170
[ 4362.461804][   T73]      __sys_sendmsg+0xcd/0x170
[ 4362.461804][   T73]      do_syscall_64+0xc6/0x1e0
[ 4362.461804][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4362.461804][   T73] 
[ 4362.464614][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4362.464614][   T73]      netdev_get_by_index+0x5e/0x80
[ 4362.464614][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4362.464614][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4362.464614][   T73]      ip6_route_add+0x1c/0x140
[ 4362.464614][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4362.464614][   T73]      addrconf_add_dev+0xe2/0x170
[ 4362.464614][   T73]      inet6_addr_add+0x12f/0xa40
[ 4362.464614][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4362.464614][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4362.464614][   T73]      netlink_rcv_skb+0x130/0x360
[ 4362.464614][   T73]      netlink_unicast+0x449/0x710
[ 4362.464614][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4362.464614][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4362.464614][   T73]      ___sys_sendmsg+0xee/0x170
[ 4362.464614][   T73]      __sys_sendmsg+0xcd/0x170
[ 4362.464614][   T73]      do_syscall_64+0xc6/0x1e0
[ 4362.464614][   T73] 
[ 4362.467264][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4362.467264][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4362.467264][   T73]      ipv6_find_idev+0x102/0x170
[ 4362.467264][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4362.467264][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4362.467264][   T73]      netlink_rcv_skb+0x130/0x360
[ 4362.467264][   T73]      netlink_unicast+0x449/0x710
[ 4362.467264][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4362.467264][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4362.467264][   T73]      ___sys_sendmsg+0xee/0x170
[ 4362.467264][   T73]      __sys_sendmsg+0xcd/0x170
[ 4362.467264][   T73]      do_syscall_64+0xc6/0x1e0
[ 4362.467264][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4362.467264][   T73] 
[ 4362.469368][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4362.469368][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4362.469368][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4362.469368][   T73]      ipv6_find_idev+0x102/0x170
[ 4362.469368][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4362.469368][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4362.469368][   T73]      netlink_rcv_skb+0x130/0x360
[ 4362.469368][   T73]      netlink_unicast+0x449/0x710
[ 4362.469368][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4362.469368][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4362.469368][   T73]      ___sys_sendmsg+0xee/0x170
[ 4362.469368][   T73]      __sys_sendmsg+0xcd/0x170
[ 4362.469368][   T73]      do_syscall_64+0xc6/0x1e0
[ 4362.469368][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4362.469368][   T73] 
[ 4372.727730][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4372.728244][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4372.728244][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4372.728244][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4372.728244][   T73]      fib6_nh_init+0xa22/0x1580
[ 4372.728244][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4372.728244][   T73]      ip6_route_add+0x1c/0x140
[ 4372.728244][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4372.728244][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4372.728244][   T73]      netlink_rcv_skb+0x130/0x360
[ 4372.728244][   T73]      netlink_unicast+0x449/0x710
[ 4372.728244][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4372.728244][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4372.728244][   T73]      ___sys_sendmsg+0xee/0x170
[ 4372.728244][   T73]      __sys_sendmsg+0xcd/0x170
[ 4372.728244][   T73]      do_syscall_64+0xc6/0x1e0
[ 4372.728244][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4372.728244][   T73] 
[ 4372.730657][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4372.730657][   T73]      dst_init+0x84/0x4a0
[ 4372.730657][   T73]      dst_alloc+0x97/0x150
[ 4372.730657][   T73]      ip6_dst_alloc+0x23/0x90
[ 4372.730657][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4372.730657][   T73]      ip6_pol_route+0x56f/0x840
[ 4372.730657][   T73]      fib6_rule_lookup+0x456/0x630
[ 4372.730657][   T73]      ip6_route_input+0x59c/0xa50
[ 4372.730657][   T73]      ipv6_rcv+0x397/0x810
[ 4372.730657][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4372.730657][   T73]      process_backlog+0x101/0x620
[ 4372.730657][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4372.730657][   T73]      net_rx_action+0x495/0xbe0
[ 4372.730657][   T73]      __do_softirq+0x1b5/0x7f6
[ 4372.730657][   T73] 
[ 4372.732722][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4372.732722][   T73]      netdev_get_by_index+0x5e/0x80
[ 4372.732722][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4372.732722][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4372.732722][   T73]      ip6_route_add+0x1c/0x140
[ 4372.732722][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4372.732722][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4372.732722][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4372.732722][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4372.732722][   T73]      netlink_rcv_skb+0x130/0x360
[ 4372.732722][   T73]      netlink_unicast+0x449/0x710
[ 4372.732722][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4372.732722][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4372.732722][   T73]      ___sys_sendmsg+0xee/0x170
[ 4372.732722][   T73]      __sys_sendmsg+0xcd/0x170
[ 4372.732722][   T73]      do_syscall_64+0xc6/0x1e0
[ 4372.732722][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4372.732722][   T73] 
[ 4372.735262][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4372.735262][   T73]      netdev_get_by_index+0x5e/0x80
[ 4372.735262][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4372.735262][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4372.735262][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4372.735262][   T73]      ipv6_add_addr+0x411/0x2000
[ 4372.735262][   T73]      inet6_addr_add+0x30e/0xa40
[ 4372.735262][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4372.735262][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4372.735262][   T73]      netlink_rcv_skb+0x130/0x360
[ 4372.735262][   T73]      netlink_unicast+0x449/0x710
[ 4372.735262][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4372.735262][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4372.735262][   T73]      ___sys_sendmsg+0xee/0x170
[ 4372.735262][   T73]      __sys_sendmsg+0xcd/0x170
[ 4372.735262][   T73]      do_syscall_64+0xc6/0x1e0
[ 4372.735262][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4372.735262][   T73] 
[ 4372.737459][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4372.737459][   T73]      netdev_get_by_index+0x5e/0x80
[ 4372.737459][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4372.737459][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4372.737459][   T73]      ip6_route_add+0x1c/0x140
[ 4372.737459][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4372.737459][   T73]      addrconf_add_dev+0xe2/0x170
[ 4372.737459][   T73]      inet6_addr_add+0x12f/0xa40
[ 4372.737459][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4372.737459][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4372.737459][   T73]      netlink_rcv_skb+0x130/0x360
[ 4372.737459][   T73]      netlink_unicast+0x449/0x710
[ 4372.737459][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4372.737459][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4372.737459][   T73]      ___sys_sendmsg+0xee/0x170
[ 4372.737459][   T73]      __sys_sendmsg+0xcd/0x170
[ 4372.737459][   T73]      do_syscall_64+0xc6/0x1e0
[ 4372.737459][   T73] 
[ 4372.739475][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4372.739475][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4372.739475][   T73]      ipv6_find_idev+0x102/0x170
[ 4372.739475][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4372.739475][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4372.739475][   T73]      netlink_rcv_skb+0x130/0x360
[ 4372.739475][   T73]      netlink_unicast+0x449/0x710
[ 4372.739475][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4372.739475][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4372.739475][   T73]      ___sys_sendmsg+0xee/0x170
[ 4372.739475][   T73]      __sys_sendmsg+0xcd/0x170
[ 4372.739475][   T73]      do_syscall_64+0xc6/0x1e0
[ 4372.739475][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4372.739475][   T73] 
[ 4372.741181][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4372.741181][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4372.741181][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4372.741181][   T73]      ipv6_find_idev+0x102/0x170
[ 4372.741181][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4372.741181][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4372.741181][   T73]      netlink_rcv_skb+0x130/0x360
[ 4372.741181][   T73]      netlink_unicast+0x449/0x710
[ 4372.741181][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4372.741181][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4372.741181][   T73]      ___sys_sendmsg+0xee/0x170
[ 4372.741181][   T73]      __sys_sendmsg+0xcd/0x170
[ 4372.741181][   T73]      do_syscall_64+0xc6/0x1e0
[ 4372.741181][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4372.741181][   T73] 
[ 4372.743318][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4372.743679][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4372.743679][   T73]      netdev_get_by_index+0x5e/0x80
[ 4372.743679][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4372.743679][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4372.743679][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4372.743679][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4372.743679][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4372.743679][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4372.743679][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4372.743679][   T73]      addrconf_dad_begin+0x310/0x670
[ 4372.743679][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4372.743679][   T73]      process_one_work+0x84d/0x18a0
[ 4372.743679][   T73]      worker_thread+0x587/0xd30
[ 4372.743679][   T73]      kthread+0x28a/0x350
[ 4372.743679][   T73]      ret_from_fork+0x31/0x70
[ 4372.743679][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4372.743679][   T73] 
[ 4372.746082][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4372.746082][   T73]      netdev_get_by_index+0x5e/0x80
[ 4372.746082][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4372.746082][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4372.746082][   T73]      ip6_route_add+0x1c/0x140
[ 4372.746082][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4372.746082][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4372.746082][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4372.746082][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4372.746082][   T73]      netlink_rcv_skb+0x130/0x360
[ 4372.746082][   T73]      netlink_unicast+0x449/0x710
[ 4372.746082][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4372.746082][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4372.746082][   T73]      ___sys_sendmsg+0xee/0x170
[ 4372.746082][   T73]      __sys_sendmsg+0xcd/0x170
[ 4372.746082][   T73]      do_syscall_64+0xc6/0x1e0
[ 4372.746082][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4372.746082][   T73] 
[ 4372.748587][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4372.748587][   T73]      netdev_get_by_index+0x5e/0x80
[ 4372.748587][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4372.748587][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4372.748587][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4372.748587][   T73]      ipv6_add_addr+0x411/0x2000
[ 4372.748587][   T73]      inet6_addr_add+0x30e/0xa40
[ 4372.748587][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4372.748587][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4372.748587][   T73]      netlink_rcv_skb+0x130/0x360
[ 4372.748587][   T73]      netlink_unicast+0x449/0x710
[ 4372.748587][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4372.748587][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4372.748587][   T73]      ___sys_sendmsg+0xee/0x170
[ 4372.748587][   T73]      __sys_sendmsg+0xcd/0x170
[ 4372.748587][   T73]      do_syscall_64+0xc6/0x1e0
[ 4372.748587][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4372.748587][   T73] 
[ 4372.751074][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4372.751074][   T73]      netdev_get_by_index+0x5e/0x80
[ 4372.751074][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4372.751074][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4372.751074][   T73]      ip6_route_add+0x1c/0x140
[ 4372.751074][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4372.751074][   T73]      addrconf_add_dev+0xe2/0x170
[ 4372.751074][   T73]      inet6_addr_add+0x12f/0xa40
[ 4372.751074][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4372.751074][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4372.751074][   T73]      netlink_rcv_skb+0x130/0x360
[ 4372.751074][   T73]      netlink_unicast+0x449/0x710
[ 4372.751074][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4372.751074][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4372.751074][   T73]      ___sys_sendmsg+0xee/0x170
[ 4372.751074][   T73]      __sys_sendmsg+0xcd/0x170
[ 4372.751074][   T73]      do_syscall_64+0xc6/0x1e0
[ 4372.751074][   T73] 
[ 4372.753508][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4372.753508][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4372.753508][   T73]      ipv6_find_idev+0x102/0x170
[ 4372.753508][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4372.753508][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4372.753508][   T73]      netlink_rcv_skb+0x130/0x360
[ 4372.753508][   T73]      netlink_unicast+0x449/0x710
[ 4372.753508][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4372.753508][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4372.753508][   T73]      ___sys_sendmsg+0xee/0x170
[ 4372.753508][   T73]      __sys_sendmsg+0xcd/0x170
[ 4372.753508][   T73]      do_syscall_64+0xc6/0x1e0
[ 4372.753508][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4372.753508][   T73] 
[ 4372.755425][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4372.755425][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4372.755425][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4372.755425][   T73]      ipv6_find_idev+0x102/0x170
[ 4372.755425][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4372.755425][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4372.755425][   T73]      netlink_rcv_skb+0x130/0x360
[ 4372.755425][   T73]      netlink_unicast+0x449/0x710
[ 4372.755425][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4372.755425][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4372.755425][   T73]      ___sys_sendmsg+0xee/0x170
[ 4372.755425][   T73]      __sys_sendmsg+0xcd/0x170
[ 4372.755425][   T73]      do_syscall_64+0xc6/0x1e0
[ 4372.755425][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4372.755425][   T73] 
[ 4372.757528][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4372.757874][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4372.757874][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4372.757874][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4372.757874][   T73]      fib6_nh_init+0xa22/0x1580
[ 4372.757874][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4372.757874][   T73]      ip6_route_add+0x1c/0x140
[ 4372.757874][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4372.757874][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4372.757874][   T73]      netlink_rcv_skb+0x130/0x360
[ 4372.757874][   T73]      netlink_unicast+0x449/0x710
[ 4372.757874][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4372.757874][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4372.757874][   T73]      ___sys_sendmsg+0xee/0x170
[ 4372.757874][   T73]      __sys_sendmsg+0xcd/0x170
[ 4372.757874][   T73]      do_syscall_64+0xc6/0x1e0
[ 4372.757874][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4372.757874][   T73] 
[ 4372.760344][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4372.760344][   T73]      dst_init+0x84/0x4a0
[ 4372.760344][   T73]      dst_alloc+0x97/0x150
[ 4372.760344][   T73]      ip6_dst_alloc+0x23/0x90
[ 4372.760344][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4372.760344][   T73]      ip6_pol_route+0x56f/0x840
[ 4372.760344][   T73]      fib6_rule_lookup+0x456/0x630
[ 4372.760344][   T73]      ip6_route_input+0x59c/0xa50
[ 4372.760344][   T73]      ipv6_rcv+0x397/0x810
[ 4372.760344][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4372.760344][   T73]      process_backlog+0x101/0x620
[ 4372.760344][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4372.760344][   T73]      net_rx_action+0x495/0xbe0
[ 4372.760344][   T73]      __do_softirq+0x1b5/0x7f6
[ 4372.760344][   T73] 
[ 4372.762510][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4372.762510][   T73]      netdev_get_by_index+0x5e/0x80
[ 4372.762510][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4372.762510][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4372.762510][   T73]      ip6_route_add+0x1c/0x140
[ 4372.762510][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4372.762510][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4372.762510][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4372.762510][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4372.762510][   T73]      netlink_rcv_skb+0x130/0x360
[ 4372.762510][   T73]      netlink_unicast+0x449/0x710
[ 4372.762510][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4372.762510][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4372.762510][   T73]      ___sys_sendmsg+0xee/0x170
[ 4372.762510][   T73]      __sys_sendmsg+0xcd/0x170
[ 4372.762510][   T73]      do_syscall_64+0xc6/0x1e0
[ 4372.762510][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4372.762510][   T73] 
[ 4372.765120][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4372.765120][   T73]      netdev_get_by_index+0x5e/0x80
[ 4372.765120][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4372.765120][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4372.765120][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4372.765120][   T73]      ipv6_add_addr+0x411/0x2000
[ 4372.765120][   T73]      inet6_addr_add+0x30e/0xa40
[ 4372.765120][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4372.765120][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4372.765120][   T73]      netlink_rcv_skb+0x130/0x360
[ 4372.765120][   T73]      netlink_unicast+0x449/0x710
[ 4372.765120][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4372.765120][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4372.765120][   T73]      ___sys_sendmsg+0xee/0x170
[ 4372.765120][   T73]      __sys_sendmsg+0xcd/0x170
[ 4372.765120][   T73]      do_syscall_64+0xc6/0x1e0
[ 4372.765120][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4372.765120][   T73] 
[ 4372.767713][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4372.767713][   T73]      netdev_get_by_index+0x5e/0x80
[ 4372.767713][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4372.767713][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4372.767713][   T73]      ip6_route_add+0x1c/0x140
[ 4372.767713][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4372.767713][   T73]      addrconf_add_dev+0xe2/0x170
[ 4372.767713][   T73]      inet6_addr_add+0x12f/0xa40
[ 4372.767713][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4372.767713][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4372.767713][   T73]      netlink_rcv_skb+0x130/0x360
[ 4372.767713][   T73]      netlink_unicast+0x449/0x710
[ 4372.767713][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4372.767713][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4372.767713][   T73]      ___sys_sendmsg+0xee/0x170
[ 4372.767713][   T73]      __sys_sendmsg+0xcd/0x170
[ 4372.767713][   T73]      do_syscall_64+0xc6/0x1e0
[ 4372.767713][   T73] 
[ 4372.770266][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4372.770266][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4372.770266][   T73]      ipv6_find_idev+0x102/0x170
[ 4372.770266][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4372.770266][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4372.770266][   T73]      netlink_rcv_skb+0x130/0x360
[ 4372.770266][   T73]      netlink_unicast+0x449/0x710
[ 4372.770266][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4372.770266][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4372.770266][   T73]      ___sys_sendmsg+0xee/0x170
[ 4372.770266][   T73]      __sys_sendmsg+0xcd/0x170
[ 4372.770266][   T73]      do_syscall_64+0xc6/0x1e0
[ 4372.770266][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4372.770266][   T73] 
[ 4372.772225][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4372.772225][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4372.772225][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4372.772225][   T73]      ipv6_find_idev+0x102/0x170
[ 4372.772225][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4372.772225][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4372.772225][   T73]      netlink_rcv_skb+0x130/0x360
[ 4372.772225][   T73]      netlink_unicast+0x449/0x710
[ 4372.772225][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4372.772225][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4372.772225][   T73]      ___sys_sendmsg+0xee/0x170
[ 4372.772225][   T73]      __sys_sendmsg+0xcd/0x170
[ 4372.772225][   T73]      do_syscall_64+0xc6/0x1e0
[ 4372.772225][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4372.772225][   T73] 
[ 4372.774432][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4372.775216][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4372.775216][   T73]      netdev_get_by_index+0x5e/0x80
[ 4372.775216][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4372.775216][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4372.775216][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4372.775216][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4372.775216][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4372.775216][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4372.775216][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4372.775216][   T73]      addrconf_dad_begin+0x310/0x670
[ 4372.775216][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4372.775216][   T73]      process_one_work+0x84d/0x18a0
[ 4372.775216][   T73]      worker_thread+0x587/0xd30
[ 4372.775216][   T73]      kthread+0x28a/0x350
[ 4372.775216][   T73]      ret_from_fork+0x31/0x70
[ 4372.775216][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4372.775216][   T73] 
[ 4372.777579][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4372.777579][   T73]      netdev_get_by_index+0x5e/0x80
[ 4372.777579][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4372.777579][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4372.777579][   T73]      ip6_route_add+0x1c/0x140
[ 4372.777579][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4372.777579][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4372.777579][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4372.777579][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4372.777579][   T73]      netlink_rcv_skb+0x130/0x360
[ 4372.777579][   T73]      netlink_unicast+0x449/0x710
[ 4372.777579][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4372.777579][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4372.777579][   T73]      ___sys_sendmsg+0xee/0x170
[ 4372.777579][   T73]      __sys_sendmsg+0xcd/0x170
[ 4372.777579][   T73]      do_syscall_64+0xc6/0x1e0
[ 4372.777579][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4372.777579][   T73] 
[ 4372.780115][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4372.780115][   T73]      netdev_get_by_index+0x5e/0x80
[ 4372.780115][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4372.780115][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4372.780115][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4372.780115][   T73]      ipv6_add_addr+0x411/0x2000
[ 4372.780115][   T73]      inet6_addr_add+0x30e/0xa40
[ 4372.780115][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4372.780115][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4372.780115][   T73]      netlink_rcv_skb+0x130/0x360
[ 4372.780115][   T73]      netlink_unicast+0x449/0x710
[ 4372.780115][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4372.780115][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4372.780115][   T73]      ___sys_sendmsg+0xee/0x170
[ 4372.780115][   T73]      __sys_sendmsg+0xcd/0x170
[ 4372.780115][   T73]      do_syscall_64+0xc6/0x1e0
[ 4372.780115][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4372.780115][   T73] 
[ 4372.782710][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4372.782710][   T73]      netdev_get_by_index+0x5e/0x80
[ 4372.782710][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4372.782710][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4372.782710][   T73]      ip6_route_add+0x1c/0x140
[ 4372.782710][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4372.782710][   T73]      addrconf_add_dev+0xe2/0x170
[ 4372.782710][   T73]      inet6_addr_add+0x12f/0xa40
[ 4372.782710][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4372.782710][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4372.782710][   T73]      netlink_rcv_skb+0x130/0x360
[ 4372.782710][   T73]      netlink_unicast+0x449/0x710
[ 4372.782710][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4372.782710][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4372.782710][   T73]      ___sys_sendmsg+0xee/0x170
[ 4372.782710][   T73]      __sys_sendmsg+0xcd/0x170
[ 4372.782710][   T73]      do_syscall_64+0xc6/0x1e0
[ 4372.782710][   T73] 
[ 4372.785219][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4372.785219][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4372.785219][   T73]      ipv6_find_idev+0x102/0x170
[ 4372.785219][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4372.785219][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4372.785219][   T73]      netlink_rcv_skb+0x130/0x360
[ 4372.785219][   T73]      netlink_unicast+0x449/0x710
[ 4372.785219][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4372.785219][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4372.785219][   T73]      ___sys_sendmsg+0xee/0x170
[ 4372.785219][   T73]      __sys_sendmsg+0xcd/0x170
[ 4372.785219][   T73]      do_syscall_64+0xc6/0x1e0
[ 4372.785219][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4372.785219][   T73] 
[ 4372.787783][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4372.787783][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4372.787783][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4372.787783][   T73]      ipv6_find_idev+0x102/0x170
[ 4372.787783][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4372.787783][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4372.787783][   T73]      netlink_rcv_skb+0x130/0x360
[ 4372.787783][   T73]      netlink_unicast+0x449/0x710
[ 4372.787783][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4372.787783][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4372.787783][   T73]      ___sys_sendmsg+0xee/0x170
[ 4372.787783][   T73]      __sys_sendmsg+0xcd/0x170
[ 4372.787783][   T73]      do_syscall_64+0xc6/0x1e0
[ 4372.787783][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4372.787783][   T73] 
[ 4383.039773][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4383.040241][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4383.040241][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4383.040241][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4383.040241][   T73]      fib6_nh_init+0xa22/0x1580
[ 4383.040241][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4383.040241][   T73]      ip6_route_add+0x1c/0x140
[ 4383.040241][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4383.040241][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4383.040241][   T73]      netlink_rcv_skb+0x130/0x360
[ 4383.040241][   T73]      netlink_unicast+0x449/0x710
[ 4383.040241][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4383.040241][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4383.040241][   T73]      ___sys_sendmsg+0xee/0x170
[ 4383.040241][   T73]      __sys_sendmsg+0xcd/0x170
[ 4383.040241][   T73]      do_syscall_64+0xc6/0x1e0
[ 4383.040241][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4383.040241][   T73] 
[ 4383.042361][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4383.042361][   T73]      dst_init+0x84/0x4a0
[ 4383.042361][   T73]      dst_alloc+0x97/0x150
[ 4383.042361][   T73]      ip6_dst_alloc+0x23/0x90
[ 4383.042361][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4383.042361][   T73]      ip6_pol_route+0x56f/0x840
[ 4383.042361][   T73]      fib6_rule_lookup+0x456/0x630
[ 4383.042361][   T73]      ip6_route_input+0x59c/0xa50
[ 4383.042361][   T73]      ipv6_rcv+0x397/0x810
[ 4383.042361][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4383.042361][   T73]      process_backlog+0x101/0x620
[ 4383.042361][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4383.042361][   T73]      net_rx_action+0x495/0xbe0
[ 4383.042361][   T73]      __do_softirq+0x1b5/0x7f6
[ 4383.042361][   T73] 
[ 4383.044202][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4383.044202][   T73]      netdev_get_by_index+0x5e/0x80
[ 4383.044202][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4383.044202][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4383.044202][   T73]      ip6_route_add+0x1c/0x140
[ 4383.044202][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4383.044202][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4383.044202][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4383.044202][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4383.044202][   T73]      netlink_rcv_skb+0x130/0x360
[ 4383.044202][   T73]      netlink_unicast+0x449/0x710
[ 4383.044202][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4383.044202][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4383.044202][   T73]      ___sys_sendmsg+0xee/0x170
[ 4383.044202][   T73]      __sys_sendmsg+0xcd/0x170
[ 4383.044202][   T73]      do_syscall_64+0xc6/0x1e0
[ 4383.044202][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4383.044202][   T73] 
[ 4383.046427][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4383.046427][   T73]      netdev_get_by_index+0x5e/0x80
[ 4383.046427][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4383.046427][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4383.046427][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4383.046427][   T73]      ipv6_add_addr+0x411/0x2000
[ 4383.046427][   T73]      inet6_addr_add+0x30e/0xa40
[ 4383.046427][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4383.046427][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4383.046427][   T73]      netlink_rcv_skb+0x130/0x360
[ 4383.046427][   T73]      netlink_unicast+0x449/0x710
[ 4383.046427][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4383.046427][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4383.046427][   T73]      ___sys_sendmsg+0xee/0x170
[ 4383.046427][   T73]      __sys_sendmsg+0xcd/0x170
[ 4383.046427][   T73]      do_syscall_64+0xc6/0x1e0
[ 4383.046427][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4383.046427][   T73] 
[ 4383.048644][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4383.048644][   T73]      netdev_get_by_index+0x5e/0x80
[ 4383.048644][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4383.048644][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4383.048644][   T73]      ip6_route_add+0x1c/0x140
[ 4383.048644][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4383.048644][   T73]      addrconf_add_dev+0xe2/0x170
[ 4383.048644][   T73]      inet6_addr_add+0x12f/0xa40
[ 4383.048644][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4383.048644][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4383.048644][   T73]      netlink_rcv_skb+0x130/0x360
[ 4383.048644][   T73]      netlink_unicast+0x449/0x710
[ 4383.048644][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4383.048644][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4383.048644][   T73]      ___sys_sendmsg+0xee/0x170
[ 4383.048644][   T73]      __sys_sendmsg+0xcd/0x170
[ 4383.048644][   T73]      do_syscall_64+0xc6/0x1e0
[ 4383.048644][   T73] 
[ 4383.050852][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4383.050852][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4383.050852][   T73]      ipv6_find_idev+0x102/0x170
[ 4383.050852][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4383.050852][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4383.050852][   T73]      netlink_rcv_skb+0x130/0x360
[ 4383.050852][   T73]      netlink_unicast+0x449/0x710
[ 4383.050852][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4383.050852][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4383.050852][   T73]      ___sys_sendmsg+0xee/0x170
[ 4383.050852][   T73]      __sys_sendmsg+0xcd/0x170
[ 4383.050852][   T73]      do_syscall_64+0xc6/0x1e0
[ 4383.050852][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4383.050852][   T73] 
[ 4383.052565][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4383.052565][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4383.052565][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4383.052565][   T73]      ipv6_find_idev+0x102/0x170
[ 4383.052565][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4383.052565][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4383.052565][   T73]      netlink_rcv_skb+0x130/0x360
[ 4383.052565][   T73]      netlink_unicast+0x449/0x710
[ 4383.052565][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4383.052565][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4383.052565][   T73]      ___sys_sendmsg+0xee/0x170
[ 4383.052565][   T73]      __sys_sendmsg+0xcd/0x170
[ 4383.052565][   T73]      do_syscall_64+0xc6/0x1e0
[ 4383.052565][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4383.052565][   T73] 
[ 4383.054441][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4383.054765][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4383.054765][   T73]      netdev_get_by_index+0x5e/0x80
[ 4383.054765][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4383.054765][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4383.054765][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4383.054765][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4383.054765][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4383.054765][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4383.054765][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4383.054765][   T73]      addrconf_dad_begin+0x310/0x670
[ 4383.054765][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4383.054765][   T73]      process_one_work+0x84d/0x18a0
[ 4383.054765][   T73]      worker_thread+0x587/0xd30
[ 4383.054765][   T73]      kthread+0x28a/0x350
[ 4383.054765][   T73]      ret_from_fork+0x31/0x70
[ 4383.054765][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4383.054765][   T73] 
[ 4383.056891][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4383.056891][   T73]      netdev_get_by_index+0x5e/0x80
[ 4383.056891][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4383.056891][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4383.056891][   T73]      ip6_route_add+0x1c/0x140
[ 4383.056891][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4383.056891][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4383.056891][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4383.056891][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4383.056891][   T73]      netlink_rcv_skb+0x130/0x360
[ 4383.056891][   T73]      netlink_unicast+0x449/0x710
[ 4383.056891][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4383.056891][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4383.056891][   T73]      ___sys_sendmsg+0xee/0x170
[ 4383.056891][   T73]      __sys_sendmsg+0xcd/0x170
[ 4383.056891][   T73]      do_syscall_64+0xc6/0x1e0
[ 4383.056891][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4383.056891][   T73] 
[ 4383.059119][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4383.059119][   T73]      netdev_get_by_index+0x5e/0x80
[ 4383.059119][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4383.059119][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4383.059119][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4383.059119][   T73]      ipv6_add_addr+0x411/0x2000
[ 4383.059119][   T73]      inet6_addr_add+0x30e/0xa40
[ 4383.059119][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4383.059119][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4383.059119][   T73]      netlink_rcv_skb+0x130/0x360
[ 4383.059119][   T73]      netlink_unicast+0x449/0x710
[ 4383.059119][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4383.059119][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4383.059119][   T73]      ___sys_sendmsg+0xee/0x170
[ 4383.059119][   T73]      __sys_sendmsg+0xcd/0x170
[ 4383.059119][   T73]      do_syscall_64+0xc6/0x1e0
[ 4383.059119][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4383.059119][   T73] 
[ 4383.061331][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4383.061331][   T73]      netdev_get_by_index+0x5e/0x80
[ 4383.061331][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4383.061331][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4383.061331][   T73]      ip6_route_add+0x1c/0x140
[ 4383.061331][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4383.061331][   T73]      addrconf_add_dev+0xe2/0x170
[ 4383.061331][   T73]      inet6_addr_add+0x12f/0xa40
[ 4383.061331][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4383.061331][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4383.061331][   T73]      netlink_rcv_skb+0x130/0x360
[ 4383.061331][   T73]      netlink_unicast+0x449/0x710
[ 4383.061331][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4383.061331][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4383.061331][   T73]      ___sys_sendmsg+0xee/0x170
[ 4383.061331][   T73]      __sys_sendmsg+0xcd/0x170
[ 4383.061331][   T73]      do_syscall_64+0xc6/0x1e0
[ 4383.061331][   T73] 
[ 4383.063458][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4383.063458][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4383.063458][   T73]      ipv6_find_idev+0x102/0x170
[ 4383.063458][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4383.063458][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4383.063458][   T73]      netlink_rcv_skb+0x130/0x360
[ 4383.063458][   T73]      netlink_unicast+0x449/0x710
[ 4383.063458][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4383.063458][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4383.063458][   T73]      ___sys_sendmsg+0xee/0x170
[ 4383.063458][   T73]      __sys_sendmsg+0xcd/0x170
[ 4383.063458][   T73]      do_syscall_64+0xc6/0x1e0
[ 4383.063458][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4383.063458][   T73] 
[ 4383.065009][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4383.065009][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4383.065009][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4383.065009][   T73]      ipv6_find_idev+0x102/0x170
[ 4383.065009][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4383.065009][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4383.065009][   T73]      netlink_rcv_skb+0x130/0x360
[ 4383.065009][   T73]      netlink_unicast+0x449/0x710
[ 4383.065009][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4383.065009][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4383.065009][   T73]      ___sys_sendmsg+0xee/0x170
[ 4383.065009][   T73]      __sys_sendmsg+0xcd/0x170
[ 4383.065009][   T73]      do_syscall_64+0xc6/0x1e0
[ 4383.065009][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4383.065009][   T73] 
[ 4383.066696][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4383.066968][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4383.066968][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4383.066968][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4383.066968][   T73]      fib6_nh_init+0xa22/0x1580
[ 4383.066968][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4383.066968][   T73]      ip6_route_add+0x1c/0x140
[ 4383.066968][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4383.066968][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4383.066968][   T73]      netlink_rcv_skb+0x130/0x360
[ 4383.066968][   T73]      netlink_unicast+0x449/0x710
[ 4383.066968][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4383.066968][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4383.066968][   T73]      ___sys_sendmsg+0xee/0x170
[ 4383.066968][   T73]      __sys_sendmsg+0xcd/0x170
[ 4383.066968][   T73]      do_syscall_64+0xc6/0x1e0
[ 4383.066968][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4383.066968][   T73] 
[ 4383.069051][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4383.069051][   T73]      dst_init+0x84/0x4a0
[ 4383.069051][   T73]      dst_alloc+0x97/0x150
[ 4383.069051][   T73]      ip6_dst_alloc+0x23/0x90
[ 4383.069051][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4383.069051][   T73]      ip6_pol_route+0x56f/0x840
[ 4383.069051][   T73]      fib6_rule_lookup+0x456/0x630
[ 4383.069051][   T73]      ip6_route_input+0x59c/0xa50
[ 4383.069051][   T73]      ipv6_rcv+0x397/0x810
[ 4383.069051][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4383.069051][   T73]      process_backlog+0x101/0x620
[ 4383.069051][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4383.069051][   T73]      net_rx_action+0x495/0xbe0
[ 4383.069051][   T73]      __do_softirq+0x1b5/0x7f6
[ 4383.069051][   T73] 
[ 4383.070887][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4383.070887][   T73]      netdev_get_by_index+0x5e/0x80
[ 4383.070887][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4383.070887][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4383.070887][   T73]      ip6_route_add+0x1c/0x140
[ 4383.070887][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4383.070887][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4383.070887][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4383.070887][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4383.070887][   T73]      netlink_rcv_skb+0x130/0x360
[ 4383.070887][   T73]      netlink_unicast+0x449/0x710
[ 4383.070887][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4383.070887][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4383.070887][   T73]      ___sys_sendmsg+0xee/0x170
[ 4383.070887][   T73]      __sys_sendmsg+0xcd/0x170
[ 4383.070887][   T73]      do_syscall_64+0xc6/0x1e0
[ 4383.070887][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4383.070887][   T73] 
[ 4383.073140][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4383.073140][   T73]      netdev_get_by_index+0x5e/0x80
[ 4383.073140][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4383.073140][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4383.073140][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4383.073140][   T73]      ipv6_add_addr+0x411/0x2000
[ 4383.073140][   T73]      inet6_addr_add+0x30e/0xa40
[ 4383.073140][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4383.073140][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4383.073140][   T73]      netlink_rcv_skb+0x130/0x360
[ 4383.073140][   T73]      netlink_unicast+0x449/0x710
[ 4383.073140][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4383.073140][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4383.073140][   T73]      ___sys_sendmsg+0xee/0x170
[ 4383.073140][   T73]      __sys_sendmsg+0xcd/0x170
[ 4383.073140][   T73]      do_syscall_64+0xc6/0x1e0
[ 4383.073140][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4383.073140][   T73] 
[ 4383.075416][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4383.075416][   T73]      netdev_get_by_index+0x5e/0x80
[ 4383.075416][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4383.075416][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4383.075416][   T73]      ip6_route_add+0x1c/0x140
[ 4383.075416][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4383.075416][   T73]      addrconf_add_dev+0xe2/0x170
[ 4383.075416][   T73]      inet6_addr_add+0x12f/0xa40
[ 4383.075416][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4383.075416][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4383.075416][   T73]      netlink_rcv_skb+0x130/0x360
[ 4383.075416][   T73]      netlink_unicast+0x449/0x710
[ 4383.075416][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4383.075416][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4383.075416][   T73]      ___sys_sendmsg+0xee/0x170
[ 4383.075416][   T73]      __sys_sendmsg+0xcd/0x170
[ 4383.075416][   T73]      do_syscall_64+0xc6/0x1e0
[ 4383.075416][   T73] 
[ 4383.077531][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4383.077531][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4383.077531][   T73]      ipv6_find_idev+0x102/0x170
[ 4383.077531][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4383.077531][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4383.077531][   T73]      netlink_rcv_skb+0x130/0x360
[ 4383.077531][   T73]      netlink_unicast+0x449/0x710
[ 4383.077531][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4383.077531][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4383.077531][   T73]      ___sys_sendmsg+0xee/0x170
[ 4383.077531][   T73]      __sys_sendmsg+0xcd/0x170
[ 4383.077531][   T73]      do_syscall_64+0xc6/0x1e0
[ 4383.077531][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4383.077531][   T73] 
[ 4383.079256][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4383.079256][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4383.079256][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4383.079256][   T73]      ipv6_find_idev+0x102/0x170
[ 4383.079256][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4383.079256][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4383.079256][   T73]      netlink_rcv_skb+0x130/0x360
[ 4383.079256][   T73]      netlink_unicast+0x449/0x710
[ 4383.079256][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4383.079256][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4383.079256][   T73]      ___sys_sendmsg+0xee/0x170
[ 4383.079256][   T73]      __sys_sendmsg+0xcd/0x170
[ 4383.079256][   T73]      do_syscall_64+0xc6/0x1e0
[ 4383.079256][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4383.079256][   T73] 
[ 4383.081182][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4383.081461][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4383.081461][   T73]      netdev_get_by_index+0x5e/0x80
[ 4383.081461][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4383.081461][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4383.081461][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4383.081461][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4383.081461][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4383.081461][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4383.081461][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4383.081461][   T73]      addrconf_dad_begin+0x310/0x670
[ 4383.081461][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4383.081461][   T73]      process_one_work+0x84d/0x18a0
[ 4383.081461][   T73]      worker_thread+0x587/0xd30
[ 4383.081461][   T73]      kthread+0x28a/0x350
[ 4383.081461][   T73]      ret_from_fork+0x31/0x70
[ 4383.081461][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4383.081461][   T73] 
[ 4383.083635][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4383.083635][   T73]      netdev_get_by_index+0x5e/0x80
[ 4383.083635][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4383.083635][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4383.083635][   T73]      ip6_route_add+0x1c/0x140
[ 4383.083635][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4383.083635][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4383.083635][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4383.083635][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4383.083635][   T73]      netlink_rcv_skb+0x130/0x360
[ 4383.083635][   T73]      netlink_unicast+0x449/0x710
[ 4383.083635][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4383.083635][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4383.083635][   T73]      ___sys_sendmsg+0xee/0x170
[ 4383.083635][   T73]      __sys_sendmsg+0xcd/0x170
[ 4383.083635][   T73]      do_syscall_64+0xc6/0x1e0
[ 4383.083635][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4383.083635][   T73] 
[ 4383.085891][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4383.085891][   T73]      netdev_get_by_index+0x5e/0x80
[ 4383.085891][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4383.085891][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4383.085891][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4383.085891][   T73]      ipv6_add_addr+0x411/0x2000
[ 4383.085891][   T73]      inet6_addr_add+0x30e/0xa40
[ 4383.085891][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4383.085891][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4383.085891][   T73]      netlink_rcv_skb+0x130/0x360
[ 4383.085891][   T73]      netlink_unicast+0x449/0x710
[ 4383.085891][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4383.085891][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4383.085891][   T73]      ___sys_sendmsg+0xee/0x170
[ 4383.085891][   T73]      __sys_sendmsg+0xcd/0x170
[ 4383.085891][   T73]      do_syscall_64+0xc6/0x1e0
[ 4383.085891][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4383.085891][   T73] 
[ 4383.088145][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4383.088145][   T73]      netdev_get_by_index+0x5e/0x80
[ 4383.088145][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4383.088145][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4383.088145][   T73]      ip6_route_add+0x1c/0x140
[ 4383.088145][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4383.088145][   T73]      addrconf_add_dev+0xe2/0x170
[ 4383.088145][   T73]      inet6_addr_add+0x12f/0xa40
[ 4383.088145][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4383.088145][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4383.088145][   T73]      netlink_rcv_skb+0x130/0x360
[ 4383.088145][   T73]      netlink_unicast+0x449/0x710
[ 4383.088145][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4383.088145][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4383.088145][   T73]      ___sys_sendmsg+0xee/0x170
[ 4383.088145][   T73]      __sys_sendmsg+0xcd/0x170
[ 4383.088145][   T73]      do_syscall_64+0xc6/0x1e0
[ 4383.088145][   T73] 
[ 4383.090362][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4383.090362][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4383.090362][   T73]      ipv6_find_idev+0x102/0x170
[ 4383.090362][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4383.090362][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4383.090362][   T73]      netlink_rcv_skb+0x130/0x360
[ 4383.090362][   T73]      netlink_unicast+0x449/0x710
[ 4383.090362][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4383.090362][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4383.090362][   T73]      ___sys_sendmsg+0xee/0x170
[ 4383.090362][   T73]      __sys_sendmsg+0xcd/0x170
[ 4383.090362][   T73]      do_syscall_64+0xc6/0x1e0
[ 4383.090362][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4383.090362][   T73] 
[ 4383.092093][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4383.092093][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4383.092093][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4383.092093][   T73]      ipv6_find_idev+0x102/0x170
[ 4383.092093][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4383.092093][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4383.092093][   T73]      netlink_rcv_skb+0x130/0x360
[ 4383.092093][   T73]      netlink_unicast+0x449/0x710
[ 4383.092093][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4383.092093][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4383.092093][   T73]      ___sys_sendmsg+0xee/0x170
[ 4383.092093][   T73]      __sys_sendmsg+0xcd/0x170
[ 4383.092093][   T73]      do_syscall_64+0xc6/0x1e0
[ 4383.092093][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4383.092093][   T73] 
[ 4393.151811][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4393.152234][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4393.152234][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4393.152234][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4393.152234][   T73]      fib6_nh_init+0xa22/0x1580
[ 4393.152234][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4393.152234][   T73]      ip6_route_add+0x1c/0x140
[ 4393.152234][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4393.152234][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4393.152234][   T73]      netlink_rcv_skb+0x130/0x360
[ 4393.152234][   T73]      netlink_unicast+0x449/0x710
[ 4393.152234][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4393.152234][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4393.152234][   T73]      ___sys_sendmsg+0xee/0x170
[ 4393.152234][   T73]      __sys_sendmsg+0xcd/0x170
[ 4393.152234][   T73]      do_syscall_64+0xc6/0x1e0
[ 4393.152234][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4393.152234][   T73] 
[ 4393.154129][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4393.154129][   T73]      dst_init+0x84/0x4a0
[ 4393.154129][   T73]      dst_alloc+0x97/0x150
[ 4393.154129][   T73]      ip6_dst_alloc+0x23/0x90
[ 4393.154129][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4393.154129][   T73]      ip6_pol_route+0x56f/0x840
[ 4393.154129][   T73]      fib6_rule_lookup+0x456/0x630
[ 4393.154129][   T73]      ip6_route_input+0x59c/0xa50
[ 4393.154129][   T73]      ipv6_rcv+0x397/0x810
[ 4393.154129][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4393.154129][   T73]      process_backlog+0x101/0x620
[ 4393.154129][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4393.154129][   T73]      net_rx_action+0x495/0xbe0
[ 4393.154129][   T73]      __do_softirq+0x1b5/0x7f6
[ 4393.154129][   T73] 
[ 4393.155771][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4393.155771][   T73]      netdev_get_by_index+0x5e/0x80
[ 4393.155771][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4393.155771][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4393.155771][   T73]      ip6_route_add+0x1c/0x140
[ 4393.155771][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4393.155771][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4393.155771][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4393.155771][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4393.155771][   T73]      netlink_rcv_skb+0x130/0x360
[ 4393.155771][   T73]      netlink_unicast+0x449/0x710
[ 4393.155771][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4393.155771][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4393.155771][   T73]      ___sys_sendmsg+0xee/0x170
[ 4393.155771][   T73]      __sys_sendmsg+0xcd/0x170
[ 4393.155771][   T73]      do_syscall_64+0xc6/0x1e0
[ 4393.155771][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4393.155771][   T73] 
[ 4393.157851][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4393.157851][   T73]      netdev_get_by_index+0x5e/0x80
[ 4393.157851][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4393.157851][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4393.157851][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4393.157851][   T73]      ipv6_add_addr+0x411/0x2000
[ 4393.157851][   T73]      inet6_addr_add+0x30e/0xa40
[ 4393.157851][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4393.157851][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4393.157851][   T73]      netlink_rcv_skb+0x130/0x360
[ 4393.157851][   T73]      netlink_unicast+0x449/0x710
[ 4393.157851][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4393.157851][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4393.157851][   T73]      ___sys_sendmsg+0xee/0x170
[ 4393.157851][   T73]      __sys_sendmsg+0xcd/0x170
[ 4393.157851][   T73]      do_syscall_64+0xc6/0x1e0
[ 4393.157851][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4393.157851][   T73] 
[ 4393.159842][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4393.159842][   T73]      netdev_get_by_index+0x5e/0x80
[ 4393.159842][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4393.159842][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4393.159842][   T73]      ip6_route_add+0x1c/0x140
[ 4393.159842][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4393.159842][   T73]      addrconf_add_dev+0xe2/0x170
[ 4393.159842][   T73]      inet6_addr_add+0x12f/0xa40
[ 4393.159842][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4393.159842][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4393.159842][   T73]      netlink_rcv_skb+0x130/0x360
[ 4393.159842][   T73]      netlink_unicast+0x449/0x710
[ 4393.159842][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4393.159842][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4393.159842][   T73]      ___sys_sendmsg+0xee/0x170
[ 4393.159842][   T73]      __sys_sendmsg+0xcd/0x170
[ 4393.159842][   T73]      do_syscall_64+0xc6/0x1e0
[ 4393.159842][   T73] 
[ 4393.161793][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4393.161793][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4393.161793][   T73]      ipv6_find_idev+0x102/0x170
[ 4393.161793][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4393.161793][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4393.161793][   T73]      netlink_rcv_skb+0x130/0x360
[ 4393.161793][   T73]      netlink_unicast+0x449/0x710
[ 4393.161793][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4393.161793][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4393.161793][   T73]      ___sys_sendmsg+0xee/0x170
[ 4393.161793][   T73]      __sys_sendmsg+0xcd/0x170
[ 4393.161793][   T73]      do_syscall_64+0xc6/0x1e0
[ 4393.161793][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4393.161793][   T73] 
[ 4393.163323][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4393.163323][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4393.163323][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4393.163323][   T73]      ipv6_find_idev+0x102/0x170
[ 4393.163323][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4393.163323][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4393.163323][   T73]      netlink_rcv_skb+0x130/0x360
[ 4393.163323][   T73]      netlink_unicast+0x449/0x710
[ 4393.163323][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4393.163323][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4393.163323][   T73]      ___sys_sendmsg+0xee/0x170
[ 4393.163323][   T73]      __sys_sendmsg+0xcd/0x170
[ 4393.163323][   T73]      do_syscall_64+0xc6/0x1e0
[ 4393.163323][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4393.163323][   T73] 
[ 4393.165017][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4393.165298][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4393.165298][   T73]      netdev_get_by_index+0x5e/0x80
[ 4393.165298][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4393.165298][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4393.165298][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4393.165298][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4393.165298][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4393.165298][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4393.165298][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4393.165298][   T73]      addrconf_dad_begin+0x310/0x670
[ 4393.165298][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4393.165298][   T73]      process_one_work+0x84d/0x18a0
[ 4393.165298][   T73]      worker_thread+0x587/0xd30
[ 4393.165298][   T73]      kthread+0x28a/0x350
[ 4393.165298][   T73]      ret_from_fork+0x31/0x70
[ 4393.165298][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4393.165298][   T73] 
[ 4393.167202][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4393.167202][   T73]      netdev_get_by_index+0x5e/0x80
[ 4393.167202][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4393.167202][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4393.167202][   T73]      ip6_route_add+0x1c/0x140
[ 4393.167202][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4393.167202][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4393.167202][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4393.167202][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4393.167202][   T73]      netlink_rcv_skb+0x130/0x360
[ 4393.167202][   T73]      netlink_unicast+0x449/0x710
[ 4393.167202][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4393.167202][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4393.167202][   T73]      ___sys_sendmsg+0xee/0x170
[ 4393.167202][   T73]      __sys_sendmsg+0xcd/0x170
[ 4393.167202][   T73]      do_syscall_64+0xc6/0x1e0
[ 4393.167202][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4393.167202][   T73] 
[ 4393.169235][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4393.169235][   T73]      netdev_get_by_index+0x5e/0x80
[ 4393.169235][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4393.169235][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4393.169235][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4393.169235][   T73]      ipv6_add_addr+0x411/0x2000
[ 4393.169235][   T73]      inet6_addr_add+0x30e/0xa40
[ 4393.169235][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4393.169235][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4393.169235][   T73]      netlink_rcv_skb+0x130/0x360
[ 4393.169235][   T73]      netlink_unicast+0x449/0x710
[ 4393.169235][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4393.169235][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4393.169235][   T73]      ___sys_sendmsg+0xee/0x170
[ 4393.169235][   T73]      __sys_sendmsg+0xcd/0x170
[ 4393.169235][   T73]      do_syscall_64+0xc6/0x1e0
[ 4393.169235][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4393.169235][   T73] 
[ 4393.171228][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4393.171228][   T73]      netdev_get_by_index+0x5e/0x80
[ 4393.171228][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4393.171228][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4393.171228][   T73]      ip6_route_add+0x1c/0x140
[ 4393.171228][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4393.171228][   T73]      addrconf_add_dev+0xe2/0x170
[ 4393.171228][   T73]      inet6_addr_add+0x12f/0xa40
[ 4393.171228][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4393.171228][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4393.171228][   T73]      netlink_rcv_skb+0x130/0x360
[ 4393.171228][   T73]      netlink_unicast+0x449/0x710
[ 4393.171228][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4393.171228][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4393.171228][   T73]      ___sys_sendmsg+0xee/0x170
[ 4393.171228][   T73]      __sys_sendmsg+0xcd/0x170
[ 4393.171228][   T73]      do_syscall_64+0xc6/0x1e0
[ 4393.171228][   T73] 
[ 4393.173181][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4393.173181][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4393.173181][   T73]      ipv6_find_idev+0x102/0x170
[ 4393.173181][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4393.173181][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4393.173181][   T73]      netlink_rcv_skb+0x130/0x360
[ 4393.173181][   T73]      netlink_unicast+0x449/0x710
[ 4393.173181][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4393.173181][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4393.173181][   T73]      ___sys_sendmsg+0xee/0x170
[ 4393.173181][   T73]      __sys_sendmsg+0xcd/0x170
[ 4393.173181][   T73]      do_syscall_64+0xc6/0x1e0
[ 4393.173181][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4393.173181][   T73] 
[ 4393.174727][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4393.174727][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4393.174727][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4393.174727][   T73]      ipv6_find_idev+0x102/0x170
[ 4393.174727][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4393.174727][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4393.174727][   T73]      netlink_rcv_skb+0x130/0x360
[ 4393.174727][   T73]      netlink_unicast+0x449/0x710
[ 4393.174727][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4393.174727][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4393.174727][   T73]      ___sys_sendmsg+0xee/0x170
[ 4393.174727][   T73]      __sys_sendmsg+0xcd/0x170
[ 4393.174727][   T73]      do_syscall_64+0xc6/0x1e0
[ 4393.174727][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4393.174727][   T73] 
[ 4393.176391][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4393.176667][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4393.176667][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4393.176667][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4393.176667][   T73]      fib6_nh_init+0xa22/0x1580
[ 4393.176667][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4393.176667][   T73]      ip6_route_add+0x1c/0x140
[ 4393.176667][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4393.176667][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4393.176667][   T73]      netlink_rcv_skb+0x130/0x360
[ 4393.176667][   T73]      netlink_unicast+0x449/0x710
[ 4393.176667][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4393.176667][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4393.176667][   T73]      ___sys_sendmsg+0xee/0x170
[ 4393.176667][   T73]      __sys_sendmsg+0xcd/0x170
[ 4393.176667][   T73]      do_syscall_64+0xc6/0x1e0
[ 4393.176667][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4393.176667][   T73] 
[ 4393.178746][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4393.178746][   T73]      dst_init+0x84/0x4a0
[ 4393.178746][   T73]      dst_alloc+0x97/0x150
[ 4393.178746][   T73]      ip6_dst_alloc+0x23/0x90
[ 4393.178746][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4393.178746][   T73]      ip6_pol_route+0x56f/0x840
[ 4393.178746][   T73]      fib6_rule_lookup+0x456/0x630
[ 4393.178746][   T73]      ip6_route_input+0x59c/0xa50
[ 4393.178746][   T73]      ipv6_rcv+0x397/0x810
[ 4393.178746][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4393.178746][   T73]      process_backlog+0x101/0x620
[ 4393.178746][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4393.178746][   T73]      net_rx_action+0x495/0xbe0
[ 4393.178746][   T73]      __do_softirq+0x1b5/0x7f6
[ 4393.178746][   T73] 
[ 4393.180564][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4393.180564][   T73]      netdev_get_by_index+0x5e/0x80
[ 4393.180564][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4393.180564][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4393.180564][   T73]      ip6_route_add+0x1c/0x140
[ 4393.180564][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4393.180564][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4393.180564][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4393.180564][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4393.180564][   T73]      netlink_rcv_skb+0x130/0x360
[ 4393.180564][   T73]      netlink_unicast+0x449/0x710
[ 4393.180564][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4393.180564][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4393.180564][   T73]      ___sys_sendmsg+0xee/0x170
[ 4393.180564][   T73]      __sys_sendmsg+0xcd/0x170
[ 4393.180564][   T73]      do_syscall_64+0xc6/0x1e0
[ 4393.180564][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4393.180564][   T73] 
[ 4393.182884][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4393.182884][   T73]      netdev_get_by_index+0x5e/0x80
[ 4393.182884][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4393.182884][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4393.182884][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4393.182884][   T73]      ipv6_add_addr+0x411/0x2000
[ 4393.182884][   T73]      inet6_addr_add+0x30e/0xa40
[ 4393.182884][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4393.182884][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4393.182884][   T73]      netlink_rcv_skb+0x130/0x360
[ 4393.182884][   T73]      netlink_unicast+0x449/0x710
[ 4393.182884][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4393.182884][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4393.182884][   T73]      ___sys_sendmsg+0xee/0x170
[ 4393.182884][   T73]      __sys_sendmsg+0xcd/0x170
[ 4393.182884][   T73]      do_syscall_64+0xc6/0x1e0
[ 4393.182884][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4393.182884][   T73] 
[ 4393.188109][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4393.188109][   T73]      netdev_get_by_index+0x5e/0x80
[ 4393.188109][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4393.188109][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4393.188109][   T73]      ip6_route_add+0x1c/0x140
[ 4393.188109][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4393.188109][   T73]      addrconf_add_dev+0xe2/0x170
[ 4393.188109][   T73]      inet6_addr_add+0x12f/0xa40
[ 4393.188109][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4393.188109][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4393.188109][   T73]      netlink_rcv_skb+0x130/0x360
[ 4393.188109][   T73]      netlink_unicast+0x449/0x710
[ 4393.188109][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4393.188109][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4393.188109][   T73]      ___sys_sendmsg+0xee/0x170
[ 4393.188109][   T73]      __sys_sendmsg+0xcd/0x170
[ 4393.188109][   T73]      do_syscall_64+0xc6/0x1e0
[ 4393.188109][   T73] 
[ 4393.190327][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4393.190327][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4393.190327][   T73]      ipv6_find_idev+0x102/0x170
[ 4393.190327][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4393.190327][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4393.190327][   T73]      netlink_rcv_skb+0x130/0x360
[ 4393.190327][   T73]      netlink_unicast+0x449/0x710
[ 4393.190327][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4393.190327][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4393.190327][   T73]      ___sys_sendmsg+0xee/0x170
[ 4393.190327][   T73]      __sys_sendmsg+0xcd/0x170
[ 4393.190327][   T73]      do_syscall_64+0xc6/0x1e0
[ 4393.190327][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4393.190327][   T73] 
[ 4393.192087][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4393.192087][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4393.192087][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4393.192087][   T73]      ipv6_find_idev+0x102/0x170
[ 4393.192087][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4393.192087][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4393.192087][   T73]      netlink_rcv_skb+0x130/0x360
[ 4393.192087][   T73]      netlink_unicast+0x449/0x710
[ 4393.192087][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4393.192087][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4393.192087][   T73]      ___sys_sendmsg+0xee/0x170
[ 4393.192087][   T73]      __sys_sendmsg+0xcd/0x170
[ 4393.192087][   T73]      do_syscall_64+0xc6/0x1e0
[ 4393.192087][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4393.192087][   T73] 
[ 4393.193963][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4393.194367][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4393.194367][   T73]      netdev_get_by_index+0x5e/0x80
[ 4393.194367][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4393.194367][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4393.194367][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4393.194367][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4393.194367][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4393.194367][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4393.194367][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4393.194367][   T73]      addrconf_dad_begin+0x310/0x670
[ 4393.194367][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4393.194367][   T73]      process_one_work+0x84d/0x18a0
[ 4393.194367][   T73]      worker_thread+0x587/0xd30
[ 4393.194367][   T73]      kthread+0x28a/0x350
[ 4393.194367][   T73]      ret_from_fork+0x31/0x70
[ 4393.194367][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4393.194367][   T73] 
[ 4393.196409][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4393.196409][   T73]      netdev_get_by_index+0x5e/0x80
[ 4393.196409][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4393.196409][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4393.196409][   T73]      ip6_route_add+0x1c/0x140
[ 4393.196409][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4393.196409][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4393.196409][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4393.196409][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4393.196409][   T73]      netlink_rcv_skb+0x130/0x360
[ 4393.196409][   T73]      netlink_unicast+0x449/0x710
[ 4393.196409][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4393.196409][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4393.196409][   T73]      ___sys_sendmsg+0xee/0x170
[ 4393.196409][   T73]      __sys_sendmsg+0xcd/0x170
[ 4393.196409][   T73]      do_syscall_64+0xc6/0x1e0
[ 4393.196409][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4393.196409][   T73] 
[ 4393.198645][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4393.198645][   T73]      netdev_get_by_index+0x5e/0x80
[ 4393.198645][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4393.198645][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4393.198645][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4393.198645][   T73]      ipv6_add_addr+0x411/0x2000
[ 4393.198645][   T73]      inet6_addr_add+0x30e/0xa40
[ 4393.198645][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4393.198645][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4393.198645][   T73]      netlink_rcv_skb+0x130/0x360
[ 4393.198645][   T73]      netlink_unicast+0x449/0x710
[ 4393.198645][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4393.198645][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4393.198645][   T73]      ___sys_sendmsg+0xee/0x170
[ 4393.198645][   T73]      __sys_sendmsg+0xcd/0x170
[ 4393.198645][   T73]      do_syscall_64+0xc6/0x1e0
[ 4393.198645][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4393.198645][   T73] 
[ 4393.200892][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4393.200892][   T73]      netdev_get_by_index+0x5e/0x80
[ 4393.200892][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4393.200892][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4393.200892][   T73]      ip6_route_add+0x1c/0x140
[ 4393.200892][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4393.200892][   T73]      addrconf_add_dev+0xe2/0x170
[ 4393.200892][   T73]      inet6_addr_add+0x12f/0xa40
[ 4393.200892][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4393.200892][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4393.200892][   T73]      netlink_rcv_skb+0x130/0x360
[ 4393.200892][   T73]      netlink_unicast+0x449/0x710
[ 4393.200892][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4393.200892][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4393.200892][   T73]      ___sys_sendmsg+0xee/0x170
[ 4393.200892][   T73]      __sys_sendmsg+0xcd/0x170
[ 4393.200892][   T73]      do_syscall_64+0xc6/0x1e0
[ 4393.200892][   T73] 
[ 4393.203090][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4393.203090][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4393.203090][   T73]      ipv6_find_idev+0x102/0x170
[ 4393.203090][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4393.203090][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4393.203090][   T73]      netlink_rcv_skb+0x130/0x360
[ 4393.203090][   T73]      netlink_unicast+0x449/0x710
[ 4393.203090][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4393.203090][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4393.203090][   T73]      ___sys_sendmsg+0xee/0x170
[ 4393.203090][   T73]      __sys_sendmsg+0xcd/0x170
[ 4393.203090][   T73]      do_syscall_64+0xc6/0x1e0
[ 4393.203090][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4393.203090][   T73] 
[ 4393.204874][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4393.204874][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4393.204874][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4393.204874][   T73]      ipv6_find_idev+0x102/0x170
[ 4393.204874][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4393.204874][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4393.204874][   T73]      netlink_rcv_skb+0x130/0x360
[ 4393.204874][   T73]      netlink_unicast+0x449/0x710
[ 4393.204874][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4393.204874][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4393.204874][   T73]      ___sys_sendmsg+0xee/0x170
[ 4393.204874][   T73]      __sys_sendmsg+0xcd/0x170
[ 4393.204874][   T73]      do_syscall_64+0xc6/0x1e0
[ 4393.204874][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4393.204874][   T73] 
[ 4403.271806][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4403.272247][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4403.272247][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4403.272247][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4403.272247][   T73]      fib6_nh_init+0xa22/0x1580
[ 4403.272247][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4403.272247][   T73]      ip6_route_add+0x1c/0x140
[ 4403.272247][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4403.272247][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4403.272247][   T73]      netlink_rcv_skb+0x130/0x360
[ 4403.272247][   T73]      netlink_unicast+0x449/0x710
[ 4403.272247][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4403.272247][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4403.272247][   T73]      ___sys_sendmsg+0xee/0x170
[ 4403.272247][   T73]      __sys_sendmsg+0xcd/0x170
[ 4403.272247][   T73]      do_syscall_64+0xc6/0x1e0
[ 4403.272247][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4403.272247][   T73] 
[ 4403.274269][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4403.274269][   T73]      dst_init+0x84/0x4a0
[ 4403.274269][   T73]      dst_alloc+0x97/0x150
[ 4403.274269][   T73]      ip6_dst_alloc+0x23/0x90
[ 4403.274269][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4403.274269][   T73]      ip6_pol_route+0x56f/0x840
[ 4403.274269][   T73]      fib6_rule_lookup+0x456/0x630
[ 4403.274269][   T73]      ip6_route_input+0x59c/0xa50
[ 4403.274269][   T73]      ipv6_rcv+0x397/0x810
[ 4403.274269][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4403.274269][   T73]      process_backlog+0x101/0x620
[ 4403.274269][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4403.274269][   T73]      net_rx_action+0x495/0xbe0
[ 4403.274269][   T73]      __do_softirq+0x1b5/0x7f6
[ 4403.274269][   T73] 
[ 4403.276059][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4403.276059][   T73]      netdev_get_by_index+0x5e/0x80
[ 4403.276059][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4403.276059][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4403.276059][   T73]      ip6_route_add+0x1c/0x140
[ 4403.276059][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4403.276059][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4403.276059][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4403.276059][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4403.276059][   T73]      netlink_rcv_skb+0x130/0x360
[ 4403.276059][   T73]      netlink_unicast+0x449/0x710
[ 4403.276059][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4403.276059][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4403.276059][   T73]      ___sys_sendmsg+0xee/0x170
[ 4403.276059][   T73]      __sys_sendmsg+0xcd/0x170
[ 4403.276059][   T73]      do_syscall_64+0xc6/0x1e0
[ 4403.276059][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4403.276059][   T73] 
[ 4403.278075][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4403.278075][   T73]      netdev_get_by_index+0x5e/0x80
[ 4403.278075][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4403.278075][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4403.278075][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4403.278075][   T73]      ipv6_add_addr+0x411/0x2000
[ 4403.278075][   T73]      inet6_addr_add+0x30e/0xa40
[ 4403.278075][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4403.278075][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4403.278075][   T73]      netlink_rcv_skb+0x130/0x360
[ 4403.278075][   T73]      netlink_unicast+0x449/0x710
[ 4403.278075][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4403.278075][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4403.278075][   T73]      ___sys_sendmsg+0xee/0x170
[ 4403.278075][   T73]      __sys_sendmsg+0xcd/0x170
[ 4403.278075][   T73]      do_syscall_64+0xc6/0x1e0
[ 4403.278075][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4403.278075][   T73] 
[ 4403.280102][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4403.280102][   T73]      netdev_get_by_index+0x5e/0x80
[ 4403.280102][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4403.280102][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4403.280102][   T73]      ip6_route_add+0x1c/0x140
[ 4403.280102][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4403.280102][   T73]      addrconf_add_dev+0xe2/0x170
[ 4403.280102][   T73]      inet6_addr_add+0x12f/0xa40
[ 4403.280102][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4403.280102][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4403.280102][   T73]      netlink_rcv_skb+0x130/0x360
[ 4403.280102][   T73]      netlink_unicast+0x449/0x710
[ 4403.280102][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4403.280102][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4403.280102][   T73]      ___sys_sendmsg+0xee/0x170
[ 4403.280102][   T73]      __sys_sendmsg+0xcd/0x170
[ 4403.280102][   T73]      do_syscall_64+0xc6/0x1e0
[ 4403.280102][   T73] 
[ 4403.282199][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4403.282199][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4403.282199][   T73]      ipv6_find_idev+0x102/0x170
[ 4403.282199][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4403.282199][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4403.282199][   T73]      netlink_rcv_skb+0x130/0x360
[ 4403.282199][   T73]      netlink_unicast+0x449/0x710
[ 4403.282199][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4403.282199][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4403.282199][   T73]      ___sys_sendmsg+0xee/0x170
[ 4403.282199][   T73]      __sys_sendmsg+0xcd/0x170
[ 4403.282199][   T73]      do_syscall_64+0xc6/0x1e0
[ 4403.282199][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4403.282199][   T73] 
[ 4403.283749][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4403.283749][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4403.283749][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4403.283749][   T73]      ipv6_find_idev+0x102/0x170
[ 4403.283749][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4403.283749][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4403.283749][   T73]      netlink_rcv_skb+0x130/0x360
[ 4403.283749][   T73]      netlink_unicast+0x449/0x710
[ 4403.283749][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4403.283749][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4403.283749][   T73]      ___sys_sendmsg+0xee/0x170
[ 4403.283749][   T73]      __sys_sendmsg+0xcd/0x170
[ 4403.283749][   T73]      do_syscall_64+0xc6/0x1e0
[ 4403.283749][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4403.283749][   T73] 
[ 4403.285532][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4403.285856][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4403.285856][   T73]      netdev_get_by_index+0x5e/0x80
[ 4403.285856][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4403.285856][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4403.285856][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4403.285856][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4403.285856][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4403.285856][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4403.285856][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4403.285856][   T73]      addrconf_dad_begin+0x310/0x670
[ 4403.285856][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4403.285856][   T73]      process_one_work+0x84d/0x18a0
[ 4403.285856][   T73]      worker_thread+0x587/0xd30
[ 4403.285856][   T73]      kthread+0x28a/0x350
[ 4403.285856][   T73]      ret_from_fork+0x31/0x70
[ 4403.285856][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4403.285856][   T73] 
[ 4403.287929][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4403.287929][   T73]      netdev_get_by_index+0x5e/0x80
[ 4403.287929][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4403.287929][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4403.287929][   T73]      ip6_route_add+0x1c/0x140
[ 4403.287929][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4403.287929][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4403.287929][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4403.287929][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4403.287929][   T73]      netlink_rcv_skb+0x130/0x360
[ 4403.287929][   T73]      netlink_unicast+0x449/0x710
[ 4403.287929][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4403.287929][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4403.287929][   T73]      ___sys_sendmsg+0xee/0x170
[ 4403.287929][   T73]      __sys_sendmsg+0xcd/0x170
[ 4403.287929][   T73]      do_syscall_64+0xc6/0x1e0
[ 4403.287929][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4403.287929][   T73] 
[ 4403.290071][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4403.290071][   T73]      netdev_get_by_index+0x5e/0x80
[ 4403.290071][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4403.290071][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4403.290071][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4403.290071][   T73]      ipv6_add_addr+0x411/0x2000
[ 4403.290071][   T73]      inet6_addr_add+0x30e/0xa40
[ 4403.290071][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4403.290071][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4403.290071][   T73]      netlink_rcv_skb+0x130/0x360
[ 4403.290071][   T73]      netlink_unicast+0x449/0x710
[ 4403.290071][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4403.290071][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4403.290071][   T73]      ___sys_sendmsg+0xee/0x170
[ 4403.290071][   T73]      __sys_sendmsg+0xcd/0x170
[ 4403.290071][   T73]      do_syscall_64+0xc6/0x1e0
[ 4403.290071][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4403.290071][   T73] 
[ 4403.292193][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4403.292193][   T73]      netdev_get_by_index+0x5e/0x80
[ 4403.292193][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4403.292193][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4403.292193][   T73]      ip6_route_add+0x1c/0x140
[ 4403.292193][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4403.292193][   T73]      addrconf_add_dev+0xe2/0x170
[ 4403.292193][   T73]      inet6_addr_add+0x12f/0xa40
[ 4403.292193][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4403.292193][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4403.292193][   T73]      netlink_rcv_skb+0x130/0x360
[ 4403.292193][   T73]      netlink_unicast+0x449/0x710
[ 4403.292193][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4403.292193][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4403.292193][   T73]      ___sys_sendmsg+0xee/0x170
[ 4403.292193][   T73]      __sys_sendmsg+0xcd/0x170
[ 4403.292193][   T73]      do_syscall_64+0xc6/0x1e0
[ 4403.292193][   T73] 
[ 4403.294196][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4403.294196][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4403.294196][   T73]      ipv6_find_idev+0x102/0x170
[ 4403.294196][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4403.294196][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4403.294196][   T73]      netlink_rcv_skb+0x130/0x360
[ 4403.294196][   T73]      netlink_unicast+0x449/0x710
[ 4403.294196][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4403.294196][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4403.294196][   T73]      ___sys_sendmsg+0xee/0x170
[ 4403.294196][   T73]      __sys_sendmsg+0xcd/0x170
[ 4403.294196][   T73]      do_syscall_64+0xc6/0x1e0
[ 4403.294196][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4403.294196][   T73] 
[ 4403.295874][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4403.295874][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4403.295874][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4403.295874][   T73]      ipv6_find_idev+0x102/0x170
[ 4403.295874][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4403.295874][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4403.295874][   T73]      netlink_rcv_skb+0x130/0x360
[ 4403.295874][   T73]      netlink_unicast+0x449/0x710
[ 4403.295874][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4403.295874][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4403.295874][   T73]      ___sys_sendmsg+0xee/0x170
[ 4403.295874][   T73]      __sys_sendmsg+0xcd/0x170
[ 4403.295874][   T73]      do_syscall_64+0xc6/0x1e0
[ 4403.295874][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4403.295874][   T73] 
[ 4403.297713][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4403.298015][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4403.298015][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4403.298015][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4403.298015][   T73]      fib6_nh_init+0xa22/0x1580
[ 4403.298015][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4403.298015][   T73]      ip6_route_add+0x1c/0x140
[ 4403.298015][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4403.298015][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4403.298015][   T73]      netlink_rcv_skb+0x130/0x360
[ 4403.298015][   T73]      netlink_unicast+0x449/0x710
[ 4403.298015][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4403.298015][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4403.298015][   T73]      ___sys_sendmsg+0xee/0x170
[ 4403.298015][   T73]      __sys_sendmsg+0xcd/0x170
[ 4403.298015][   T73]      do_syscall_64+0xc6/0x1e0
[ 4403.298015][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4403.298015][   T73] 
[ 4403.300245][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4403.300245][   T73]      dst_init+0x84/0x4a0
[ 4403.300245][   T73]      dst_alloc+0x97/0x150
[ 4403.300245][   T73]      ip6_dst_alloc+0x23/0x90
[ 4403.300245][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4403.300245][   T73]      ip6_pol_route+0x56f/0x840
[ 4403.300245][   T73]      fib6_rule_lookup+0x456/0x630
[ 4403.300245][   T73]      ip6_route_input+0x59c/0xa50
[ 4403.300245][   T73]      ipv6_rcv+0x397/0x810
[ 4403.300245][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4403.300245][   T73]      process_backlog+0x101/0x620
[ 4403.300245][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4403.300245][   T73]      net_rx_action+0x495/0xbe0
[ 4403.300245][   T73]      __do_softirq+0x1b5/0x7f6
[ 4403.300245][   T73] 
[ 4403.302067][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4403.302067][   T73]      netdev_get_by_index+0x5e/0x80
[ 4403.302067][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4403.302067][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4403.302067][   T73]      ip6_route_add+0x1c/0x140
[ 4403.302067][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4403.302067][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4403.302067][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4403.302067][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4403.302067][   T73]      netlink_rcv_skb+0x130/0x360
[ 4403.302067][   T73]      netlink_unicast+0x449/0x710
[ 4403.302067][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4403.302067][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4403.302067][   T73]      ___sys_sendmsg+0xee/0x170
[ 4403.302067][   T73]      __sys_sendmsg+0xcd/0x170
[ 4403.302067][   T73]      do_syscall_64+0xc6/0x1e0
[ 4403.302067][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4403.302067][   T73] 
[ 4403.304328][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4403.304328][   T73]      netdev_get_by_index+0x5e/0x80
[ 4403.304328][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4403.304328][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4403.304328][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4403.304328][   T73]      ipv6_add_addr+0x411/0x2000
[ 4403.304328][   T73]      inet6_addr_add+0x30e/0xa40
[ 4403.304328][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4403.304328][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4403.304328][   T73]      netlink_rcv_skb+0x130/0x360
[ 4403.304328][   T73]      netlink_unicast+0x449/0x710
[ 4403.304328][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4403.304328][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4403.304328][   T73]      ___sys_sendmsg+0xee/0x170
[ 4403.304328][   T73]      __sys_sendmsg+0xcd/0x170
[ 4403.304328][   T73]      do_syscall_64+0xc6/0x1e0
[ 4403.304328][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4403.304328][   T73] 
[ 4403.306614][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4403.306614][   T73]      netdev_get_by_index+0x5e/0x80
[ 4403.306614][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4403.306614][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4403.306614][   T73]      ip6_route_add+0x1c/0x140
[ 4403.306614][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4403.306614][   T73]      addrconf_add_dev+0xe2/0x170
[ 4403.306614][   T73]      inet6_addr_add+0x12f/0xa40
[ 4403.306614][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4403.306614][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4403.306614][   T73]      netlink_rcv_skb+0x130/0x360
[ 4403.306614][   T73]      netlink_unicast+0x449/0x710
[ 4403.306614][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4403.306614][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4403.306614][   T73]      ___sys_sendmsg+0xee/0x170
[ 4403.306614][   T73]      __sys_sendmsg+0xcd/0x170
[ 4403.306614][   T73]      do_syscall_64+0xc6/0x1e0
[ 4403.306614][   T73] 
[ 4403.309065][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4403.309065][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4403.309065][   T73]      ipv6_find_idev+0x102/0x170
[ 4403.309065][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4403.309065][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4403.309065][   T73]      netlink_rcv_skb+0x130/0x360
[ 4403.309065][   T73]      netlink_unicast+0x449/0x710
[ 4403.309065][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4403.309065][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4403.309065][   T73]      ___sys_sendmsg+0xee/0x170
[ 4403.309065][   T73]      __sys_sendmsg+0xcd/0x170
[ 4403.309065][   T73]      do_syscall_64+0xc6/0x1e0
[ 4403.309065][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4403.309065][   T73] 
[ 4403.310898][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4403.310898][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4403.310898][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4403.310898][   T73]      ipv6_find_idev+0x102/0x170
[ 4403.310898][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4403.310898][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4403.310898][   T73]      netlink_rcv_skb+0x130/0x360
[ 4403.310898][   T73]      netlink_unicast+0x449/0x710
[ 4403.310898][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4403.310898][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4403.310898][   T73]      ___sys_sendmsg+0xee/0x170
[ 4403.310898][   T73]      __sys_sendmsg+0xcd/0x170
[ 4403.310898][   T73]      do_syscall_64+0xc6/0x1e0
[ 4403.310898][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4403.310898][   T73] 
[ 4403.313350][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4403.314128][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4403.314128][   T73]      netdev_get_by_index+0x5e/0x80
[ 4403.314128][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4403.314128][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4403.314128][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4403.314128][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4403.314128][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4403.314128][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4403.314128][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4403.314128][   T73]      addrconf_dad_begin+0x310/0x670
[ 4403.314128][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4403.314128][   T73]      process_one_work+0x84d/0x18a0
[ 4403.314128][   T73]      worker_thread+0x587/0xd30
[ 4403.314128][   T73]      kthread+0x28a/0x350
[ 4403.314128][   T73]      ret_from_fork+0x31/0x70
[ 4403.314128][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4403.314128][   T73] 
[ 4403.316171][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4403.316171][   T73]      netdev_get_by_index+0x5e/0x80
[ 4403.316171][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4403.316171][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4403.316171][   T73]      ip6_route_add+0x1c/0x140
[ 4403.316171][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4403.316171][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4403.316171][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4403.316171][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4403.316171][   T73]      netlink_rcv_skb+0x130/0x360
[ 4403.316171][   T73]      netlink_unicast+0x449/0x710
[ 4403.316171][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4403.316171][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4403.316171][   T73]      ___sys_sendmsg+0xee/0x170
[ 4403.316171][   T73]      __sys_sendmsg+0xcd/0x170
[ 4403.316171][   T73]      do_syscall_64+0xc6/0x1e0
[ 4403.316171][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4403.316171][   T73] 
[ 4403.318329][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4403.318329][   T73]      netdev_get_by_index+0x5e/0x80
[ 4403.318329][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4403.318329][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4403.318329][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4403.318329][   T73]      ipv6_add_addr+0x411/0x2000
[ 4403.318329][   T73]      inet6_addr_add+0x30e/0xa40
[ 4403.318329][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4403.318329][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4403.318329][   T73]      netlink_rcv_skb+0x130/0x360
[ 4403.318329][   T73]      netlink_unicast+0x449/0x710
[ 4403.318329][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4403.318329][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4403.318329][   T73]      ___sys_sendmsg+0xee/0x170
[ 4403.318329][   T73]      __sys_sendmsg+0xcd/0x170
[ 4403.318329][   T73]      do_syscall_64+0xc6/0x1e0
[ 4403.318329][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4403.318329][   T73] 
[ 4403.320443][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4403.320443][   T73]      netdev_get_by_index+0x5e/0x80
[ 4403.320443][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4403.320443][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4403.320443][   T73]      ip6_route_add+0x1c/0x140
[ 4403.320443][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4403.320443][   T73]      addrconf_add_dev+0xe2/0x170
[ 4403.320443][   T73]      inet6_addr_add+0x12f/0xa40
[ 4403.320443][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4403.320443][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4403.320443][   T73]      netlink_rcv_skb+0x130/0x360
[ 4403.320443][   T73]      netlink_unicast+0x449/0x710
[ 4403.320443][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4403.320443][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4403.320443][   T73]      ___sys_sendmsg+0xee/0x170
[ 4403.320443][   T73]      __sys_sendmsg+0xcd/0x170
[ 4403.320443][   T73]      do_syscall_64+0xc6/0x1e0
[ 4403.320443][   T73] 
[ 4403.322659][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4403.322659][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4403.322659][   T73]      ipv6_find_idev+0x102/0x170
[ 4403.322659][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4403.322659][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4403.322659][   T73]      netlink_rcv_skb+0x130/0x360
[ 4403.322659][   T73]      netlink_unicast+0x449/0x710
[ 4403.322659][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4403.322659][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4403.322659][   T73]      ___sys_sendmsg+0xee/0x170
[ 4403.322659][   T73]      __sys_sendmsg+0xcd/0x170
[ 4403.322659][   T73]      do_syscall_64+0xc6/0x1e0
[ 4403.322659][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4403.322659][   T73] 
[ 4403.324340][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4403.324340][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4403.324340][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4403.324340][   T73]      ipv6_find_idev+0x102/0x170
[ 4403.324340][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4403.324340][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4403.324340][   T73]      netlink_rcv_skb+0x130/0x360
[ 4403.324340][   T73]      netlink_unicast+0x449/0x710
[ 4403.324340][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4403.324340][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4403.324340][   T73]      ___sys_sendmsg+0xee/0x170
[ 4403.324340][   T73]      __sys_sendmsg+0xcd/0x170
[ 4403.324340][   T73]      do_syscall_64+0xc6/0x1e0
[ 4403.324340][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4403.324340][   T73] 
[ 4413.567760][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4413.568277][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4413.568277][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4413.568277][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4413.568277][   T73]      fib6_nh_init+0xa22/0x1580
[ 4413.568277][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4413.568277][   T73]      ip6_route_add+0x1c/0x140
[ 4413.568277][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4413.568277][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4413.568277][   T73]      netlink_rcv_skb+0x130/0x360
[ 4413.568277][   T73]      netlink_unicast+0x449/0x710
[ 4413.568277][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4413.568277][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4413.568277][   T73]      ___sys_sendmsg+0xee/0x170
[ 4413.568277][   T73]      __sys_sendmsg+0xcd/0x170
[ 4413.568277][   T73]      do_syscall_64+0xc6/0x1e0
[ 4413.568277][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4413.568277][   T73] 
[ 4413.570208][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4413.570208][   T73]      dst_init+0x84/0x4a0
[ 4413.570208][   T73]      dst_alloc+0x97/0x150
[ 4413.570208][   T73]      ip6_dst_alloc+0x23/0x90
[ 4413.570208][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4413.570208][   T73]      ip6_pol_route+0x56f/0x840
[ 4413.570208][   T73]      fib6_rule_lookup+0x456/0x630
[ 4413.570208][   T73]      ip6_route_input+0x59c/0xa50
[ 4413.570208][   T73]      ipv6_rcv+0x397/0x810
[ 4413.570208][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4413.570208][   T73]      process_backlog+0x101/0x620
[ 4413.570208][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4413.570208][   T73]      net_rx_action+0x495/0xbe0
[ 4413.570208][   T73]      __do_softirq+0x1b5/0x7f6
[ 4413.570208][   T73] 
[ 4413.571861][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4413.571861][   T73]      netdev_get_by_index+0x5e/0x80
[ 4413.571861][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4413.571861][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4413.571861][   T73]      ip6_route_add+0x1c/0x140
[ 4413.571861][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4413.571861][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4413.571861][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4413.571861][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4413.571861][   T73]      netlink_rcv_skb+0x130/0x360
[ 4413.571861][   T73]      netlink_unicast+0x449/0x710
[ 4413.571861][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4413.571861][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4413.571861][   T73]      ___sys_sendmsg+0xee/0x170
[ 4413.571861][   T73]      __sys_sendmsg+0xcd/0x170
[ 4413.571861][   T73]      do_syscall_64+0xc6/0x1e0
[ 4413.571861][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4413.571861][   T73] 
[ 4413.573867][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4413.573867][   T73]      netdev_get_by_index+0x5e/0x80
[ 4413.573867][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4413.573867][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4413.573867][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4413.573867][   T73]      ipv6_add_addr+0x411/0x2000
[ 4413.573867][   T73]      inet6_addr_add+0x30e/0xa40
[ 4413.573867][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4413.573867][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4413.573867][   T73]      netlink_rcv_skb+0x130/0x360
[ 4413.573867][   T73]      netlink_unicast+0x449/0x710
[ 4413.573867][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4413.573867][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4413.573867][   T73]      ___sys_sendmsg+0xee/0x170
[ 4413.573867][   T73]      __sys_sendmsg+0xcd/0x170
[ 4413.573867][   T73]      do_syscall_64+0xc6/0x1e0
[ 4413.573867][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4413.573867][   T73] 
[ 4413.575921][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4413.575921][   T73]      netdev_get_by_index+0x5e/0x80
[ 4413.575921][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4413.575921][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4413.575921][   T73]      ip6_route_add+0x1c/0x140
[ 4413.575921][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4413.575921][   T73]      addrconf_add_dev+0xe2/0x170
[ 4413.575921][   T73]      inet6_addr_add+0x12f/0xa40
[ 4413.575921][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4413.575921][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4413.575921][   T73]      netlink_rcv_skb+0x130/0x360
[ 4413.575921][   T73]      netlink_unicast+0x449/0x710
[ 4413.575921][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4413.575921][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4413.575921][   T73]      ___sys_sendmsg+0xee/0x170
[ 4413.575921][   T73]      __sys_sendmsg+0xcd/0x170
[ 4413.575921][   T73]      do_syscall_64+0xc6/0x1e0
[ 4413.575921][   T73] 
[ 4413.577925][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4413.577925][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4413.577925][   T73]      ipv6_find_idev+0x102/0x170
[ 4413.577925][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4413.577925][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4413.577925][   T73]      netlink_rcv_skb+0x130/0x360
[ 4413.577925][   T73]      netlink_unicast+0x449/0x710
[ 4413.577925][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4413.577925][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4413.577925][   T73]      ___sys_sendmsg+0xee/0x170
[ 4413.577925][   T73]      __sys_sendmsg+0xcd/0x170
[ 4413.577925][   T73]      do_syscall_64+0xc6/0x1e0
[ 4413.577925][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4413.577925][   T73] 
[ 4413.579478][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4413.579478][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4413.579478][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4413.579478][   T73]      ipv6_find_idev+0x102/0x170
[ 4413.579478][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4413.579478][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4413.579478][   T73]      netlink_rcv_skb+0x130/0x360
[ 4413.579478][   T73]      netlink_unicast+0x449/0x710
[ 4413.579478][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4413.579478][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4413.579478][   T73]      ___sys_sendmsg+0xee/0x170
[ 4413.579478][   T73]      __sys_sendmsg+0xcd/0x170
[ 4413.579478][   T73]      do_syscall_64+0xc6/0x1e0
[ 4413.579478][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4413.579478][   T73] 
[ 4413.581196][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4413.581483][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4413.581483][   T73]      netdev_get_by_index+0x5e/0x80
[ 4413.581483][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4413.581483][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4413.581483][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4413.581483][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4413.581483][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4413.581483][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4413.581483][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4413.581483][   T73]      addrconf_dad_begin+0x310/0x670
[ 4413.581483][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4413.581483][   T73]      process_one_work+0x84d/0x18a0
[ 4413.581483][   T73]      worker_thread+0x587/0xd30
[ 4413.581483][   T73]      kthread+0x28a/0x350
[ 4413.581483][   T73]      ret_from_fork+0x31/0x70
[ 4413.581483][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4413.581483][   T73] 
[ 4413.583408][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4413.583408][   T73]      netdev_get_by_index+0x5e/0x80
[ 4413.583408][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4413.583408][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4413.583408][   T73]      ip6_route_add+0x1c/0x140
[ 4413.583408][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4413.583408][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4413.583408][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4413.583408][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4413.583408][   T73]      netlink_rcv_skb+0x130/0x360
[ 4413.583408][   T73]      netlink_unicast+0x449/0x710
[ 4413.583408][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4413.583408][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4413.583408][   T73]      ___sys_sendmsg+0xee/0x170
[ 4413.583408][   T73]      __sys_sendmsg+0xcd/0x170
[ 4413.583408][   T73]      do_syscall_64+0xc6/0x1e0
[ 4413.583408][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4413.583408][   T73] 
[ 4413.585422][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4413.585422][   T73]      netdev_get_by_index+0x5e/0x80
[ 4413.585422][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4413.585422][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4413.585422][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4413.585422][   T73]      ipv6_add_addr+0x411/0x2000
[ 4413.585422][   T73]      inet6_addr_add+0x30e/0xa40
[ 4413.585422][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4413.585422][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4413.585422][   T73]      netlink_rcv_skb+0x130/0x360
[ 4413.585422][   T73]      netlink_unicast+0x449/0x710
[ 4413.585422][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4413.585422][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4413.585422][   T73]      ___sys_sendmsg+0xee/0x170
[ 4413.585422][   T73]      __sys_sendmsg+0xcd/0x170
[ 4413.585422][   T73]      do_syscall_64+0xc6/0x1e0
[ 4413.585422][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4413.585422][   T73] 
[ 4413.587474][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4413.587474][   T73]      netdev_get_by_index+0x5e/0x80
[ 4413.587474][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4413.587474][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4413.587474][   T73]      ip6_route_add+0x1c/0x140
[ 4413.587474][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4413.587474][   T73]      addrconf_add_dev+0xe2/0x170
[ 4413.587474][   T73]      inet6_addr_add+0x12f/0xa40
[ 4413.587474][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4413.587474][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4413.587474][   T73]      netlink_rcv_skb+0x130/0x360
[ 4413.587474][   T73]      netlink_unicast+0x449/0x710
[ 4413.587474][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4413.587474][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4413.587474][   T73]      ___sys_sendmsg+0xee/0x170
[ 4413.587474][   T73]      __sys_sendmsg+0xcd/0x170
[ 4413.587474][   T73]      do_syscall_64+0xc6/0x1e0
[ 4413.587474][   T73] 
[ 4413.589444][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4413.589444][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4413.589444][   T73]      ipv6_find_idev+0x102/0x170
[ 4413.589444][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4413.589444][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4413.589444][   T73]      netlink_rcv_skb+0x130/0x360
[ 4413.589444][   T73]      netlink_unicast+0x449/0x710
[ 4413.589444][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4413.589444][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4413.589444][   T73]      ___sys_sendmsg+0xee/0x170
[ 4413.589444][   T73]      __sys_sendmsg+0xcd/0x170
[ 4413.589444][   T73]      do_syscall_64+0xc6/0x1e0
[ 4413.589444][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4413.589444][   T73] 
[ 4413.590992][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4413.590992][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4413.590992][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4413.590992][   T73]      ipv6_find_idev+0x102/0x170
[ 4413.590992][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4413.590992][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4413.590992][   T73]      netlink_rcv_skb+0x130/0x360
[ 4413.590992][   T73]      netlink_unicast+0x449/0x710
[ 4413.590992][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4413.590992][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4413.590992][   T73]      ___sys_sendmsg+0xee/0x170
[ 4413.590992][   T73]      __sys_sendmsg+0xcd/0x170
[ 4413.590992][   T73]      do_syscall_64+0xc6/0x1e0
[ 4413.590992][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4413.590992][   T73] 
[ 4413.592705][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4413.592984][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4413.592984][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4413.592984][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4413.592984][   T73]      fib6_nh_init+0xa22/0x1580
[ 4413.592984][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4413.592984][   T73]      ip6_route_add+0x1c/0x140
[ 4413.592984][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4413.592984][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4413.592984][   T73]      netlink_rcv_skb+0x130/0x360
[ 4413.592984][   T73]      netlink_unicast+0x449/0x710
[ 4413.592984][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4413.592984][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4413.592984][   T73]      ___sys_sendmsg+0xee/0x170
[ 4413.592984][   T73]      __sys_sendmsg+0xcd/0x170
[ 4413.592984][   T73]      do_syscall_64+0xc6/0x1e0
[ 4413.592984][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4413.592984][   T73] 
[ 4413.595067][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4413.595067][   T73]      dst_init+0x84/0x4a0
[ 4413.595067][   T73]      dst_alloc+0x97/0x150
[ 4413.595067][   T73]      ip6_dst_alloc+0x23/0x90
[ 4413.595067][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4413.595067][   T73]      ip6_pol_route+0x56f/0x840
[ 4413.595067][   T73]      fib6_rule_lookup+0x456/0x630
[ 4413.595067][   T73]      ip6_route_input+0x59c/0xa50
[ 4413.595067][   T73]      ipv6_rcv+0x397/0x810
[ 4413.595067][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4413.595067][   T73]      process_backlog+0x101/0x620
[ 4413.595067][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4413.595067][   T73]      net_rx_action+0x495/0xbe0
[ 4413.595067][   T73]      __do_softirq+0x1b5/0x7f6
[ 4413.595067][   T73] 
[ 4413.596955][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4413.596955][   T73]      netdev_get_by_index+0x5e/0x80
[ 4413.596955][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4413.596955][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4413.596955][   T73]      ip6_route_add+0x1c/0x140
[ 4413.596955][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4413.596955][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4413.596955][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4413.596955][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4413.596955][   T73]      netlink_rcv_skb+0x130/0x360
[ 4413.596955][   T73]      netlink_unicast+0x449/0x710
[ 4413.596955][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4413.596955][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4413.596955][   T73]      ___sys_sendmsg+0xee/0x170
[ 4413.596955][   T73]      __sys_sendmsg+0xcd/0x170
[ 4413.596955][   T73]      do_syscall_64+0xc6/0x1e0
[ 4413.596955][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4413.596955][   T73] 
[ 4413.599201][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4413.599201][   T73]      netdev_get_by_index+0x5e/0x80
[ 4413.599201][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4413.599201][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4413.599201][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4413.599201][   T73]      ipv6_add_addr+0x411/0x2000
[ 4413.599201][   T73]      inet6_addr_add+0x30e/0xa40
[ 4413.599201][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4413.599201][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4413.599201][   T73]      netlink_rcv_skb+0x130/0x360
[ 4413.599201][   T73]      netlink_unicast+0x449/0x710
[ 4413.599201][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4413.599201][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4413.599201][   T73]      ___sys_sendmsg+0xee/0x170
[ 4413.599201][   T73]      __sys_sendmsg+0xcd/0x170
[ 4413.599201][   T73]      do_syscall_64+0xc6/0x1e0
[ 4413.599201][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4413.599201][   T73] 
[ 4413.601463][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4413.601463][   T73]      netdev_get_by_index+0x5e/0x80
[ 4413.601463][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4413.601463][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4413.601463][   T73]      ip6_route_add+0x1c/0x140
[ 4413.601463][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4413.601463][   T73]      addrconf_add_dev+0xe2/0x170
[ 4413.601463][   T73]      inet6_addr_add+0x12f/0xa40
[ 4413.601463][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4413.601463][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4413.601463][   T73]      netlink_rcv_skb+0x130/0x360
[ 4413.601463][   T73]      netlink_unicast+0x449/0x710
[ 4413.601463][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4413.601463][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4413.601463][   T73]      ___sys_sendmsg+0xee/0x170
[ 4413.601463][   T73]      __sys_sendmsg+0xcd/0x170
[ 4413.601463][   T73]      do_syscall_64+0xc6/0x1e0
[ 4413.601463][   T73] 
[ 4413.603717][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4413.603717][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4413.603717][   T73]      ipv6_find_idev+0x102/0x170
[ 4413.603717][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4413.603717][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4413.603717][   T73]      netlink_rcv_skb+0x130/0x360
[ 4413.603717][   T73]      netlink_unicast+0x449/0x710
[ 4413.603717][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4413.603717][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4413.603717][   T73]      ___sys_sendmsg+0xee/0x170
[ 4413.603717][   T73]      __sys_sendmsg+0xcd/0x170
[ 4413.603717][   T73]      do_syscall_64+0xc6/0x1e0
[ 4413.603717][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4413.603717][   T73] 
[ 4413.605521][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4413.605521][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4413.605521][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4413.605521][   T73]      ipv6_find_idev+0x102/0x170
[ 4413.605521][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4413.605521][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4413.605521][   T73]      netlink_rcv_skb+0x130/0x360
[ 4413.605521][   T73]      netlink_unicast+0x449/0x710
[ 4413.605521][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4413.605521][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4413.605521][   T73]      ___sys_sendmsg+0xee/0x170
[ 4413.605521][   T73]      __sys_sendmsg+0xcd/0x170
[ 4413.605521][   T73]      do_syscall_64+0xc6/0x1e0
[ 4413.605521][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4413.605521][   T73] 
[ 4413.607411][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4413.608145][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4413.608145][   T73]      netdev_get_by_index+0x5e/0x80
[ 4413.608145][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4413.608145][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4413.608145][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4413.608145][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4413.608145][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4413.608145][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4413.608145][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4413.608145][   T73]      addrconf_dad_begin+0x310/0x670
[ 4413.608145][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4413.608145][   T73]      process_one_work+0x84d/0x18a0
[ 4413.608145][   T73]      worker_thread+0x587/0xd30
[ 4413.608145][   T73]      kthread+0x28a/0x350
[ 4413.608145][   T73]      ret_from_fork+0x31/0x70
[ 4413.608145][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4413.608145][   T73] 
[ 4413.610075][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4413.610075][   T73]      netdev_get_by_index+0x5e/0x80
[ 4413.610075][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4413.610075][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4413.610075][   T73]      ip6_route_add+0x1c/0x140
[ 4413.610075][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4413.610075][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4413.610075][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4413.610075][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4413.610075][   T73]      netlink_rcv_skb+0x130/0x360
[ 4413.610075][   T73]      netlink_unicast+0x449/0x710
[ 4413.610075][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4413.610075][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4413.610075][   T73]      ___sys_sendmsg+0xee/0x170
[ 4413.610075][   T73]      __sys_sendmsg+0xcd/0x170
[ 4413.610075][   T73]      do_syscall_64+0xc6/0x1e0
[ 4413.610075][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4413.610075][   T73] 
[ 4413.612224][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4413.612224][   T73]      netdev_get_by_index+0x5e/0x80
[ 4413.612224][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4413.612224][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4413.612224][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4413.612224][   T73]      ipv6_add_addr+0x411/0x2000
[ 4413.612224][   T73]      inet6_addr_add+0x30e/0xa40
[ 4413.612224][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4413.612224][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4413.612224][   T73]      netlink_rcv_skb+0x130/0x360
[ 4413.612224][   T73]      netlink_unicast+0x449/0x710
[ 4413.612224][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4413.612224][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4413.612224][   T73]      ___sys_sendmsg+0xee/0x170
[ 4413.612224][   T73]      __sys_sendmsg+0xcd/0x170
[ 4413.612224][   T73]      do_syscall_64+0xc6/0x1e0
[ 4413.612224][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4413.612224][   T73] 
[ 4413.614486][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4413.614486][   T73]      netdev_get_by_index+0x5e/0x80
[ 4413.614486][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4413.614486][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4413.614486][   T73]      ip6_route_add+0x1c/0x140
[ 4413.614486][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4413.614486][   T73]      addrconf_add_dev+0xe2/0x170
[ 4413.614486][   T73]      inet6_addr_add+0x12f/0xa40
[ 4413.614486][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4413.614486][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4413.614486][   T73]      netlink_rcv_skb+0x130/0x360
[ 4413.614486][   T73]      netlink_unicast+0x449/0x710
[ 4413.614486][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4413.614486][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4413.614486][   T73]      ___sys_sendmsg+0xee/0x170
[ 4413.614486][   T73]      __sys_sendmsg+0xcd/0x170
[ 4413.614486][   T73]      do_syscall_64+0xc6/0x1e0
[ 4413.614486][   T73] 
[ 4413.616675][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4413.616675][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4413.616675][   T73]      ipv6_find_idev+0x102/0x170
[ 4413.616675][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4413.616675][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4413.616675][   T73]      netlink_rcv_skb+0x130/0x360
[ 4413.616675][   T73]      netlink_unicast+0x449/0x710
[ 4413.616675][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4413.616675][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4413.616675][   T73]      ___sys_sendmsg+0xee/0x170
[ 4413.616675][   T73]      __sys_sendmsg+0xcd/0x170
[ 4413.616675][   T73]      do_syscall_64+0xc6/0x1e0
[ 4413.616675][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4413.616675][   T73] 
[ 4413.618475][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4413.618475][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4413.618475][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4413.618475][   T73]      ipv6_find_idev+0x102/0x170
[ 4413.618475][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4413.618475][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4413.618475][   T73]      netlink_rcv_skb+0x130/0x360
[ 4413.618475][   T73]      netlink_unicast+0x449/0x710
[ 4413.618475][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4413.618475][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4413.618475][   T73]      ___sys_sendmsg+0xee/0x170
[ 4413.618475][   T73]      __sys_sendmsg+0xcd/0x170
[ 4413.618475][   T73]      do_syscall_64+0xc6/0x1e0
[ 4413.618475][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4413.618475][   T73] 
[ 4423.855684][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4423.856190][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4423.856190][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4423.856190][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4423.856190][   T73]      fib6_nh_init+0xa22/0x1580
[ 4423.856190][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4423.856190][   T73]      ip6_route_add+0x1c/0x140
[ 4423.856190][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4423.856190][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4423.856190][   T73]      netlink_rcv_skb+0x130/0x360
[ 4423.856190][   T73]      netlink_unicast+0x449/0x710
[ 4423.856190][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4423.856190][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4423.856190][   T73]      ___sys_sendmsg+0xee/0x170
[ 4423.856190][   T73]      __sys_sendmsg+0xcd/0x170
[ 4423.856190][   T73]      do_syscall_64+0xc6/0x1e0
[ 4423.856190][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4423.856190][   T73] 
[ 4423.858133][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4423.858133][   T73]      dst_init+0x84/0x4a0
[ 4423.858133][   T73]      dst_alloc+0x97/0x150
[ 4423.858133][   T73]      ip6_dst_alloc+0x23/0x90
[ 4423.858133][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4423.858133][   T73]      ip6_pol_route+0x56f/0x840
[ 4423.858133][   T73]      fib6_rule_lookup+0x456/0x630
[ 4423.858133][   T73]      ip6_route_input+0x59c/0xa50
[ 4423.858133][   T73]      ipv6_rcv+0x397/0x810
[ 4423.858133][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4423.858133][   T73]      process_backlog+0x101/0x620
[ 4423.858133][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4423.858133][   T73]      net_rx_action+0x495/0xbe0
[ 4423.858133][   T73]      __do_softirq+0x1b5/0x7f6
[ 4423.858133][   T73] 
[ 4423.859771][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4423.859771][   T73]      netdev_get_by_index+0x5e/0x80
[ 4423.859771][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4423.859771][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4423.859771][   T73]      ip6_route_add+0x1c/0x140
[ 4423.859771][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4423.859771][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4423.859771][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4423.859771][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4423.859771][   T73]      netlink_rcv_skb+0x130/0x360
[ 4423.859771][   T73]      netlink_unicast+0x449/0x710
[ 4423.859771][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4423.859771][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4423.859771][   T73]      ___sys_sendmsg+0xee/0x170
[ 4423.859771][   T73]      __sys_sendmsg+0xcd/0x170
[ 4423.859771][   T73]      do_syscall_64+0xc6/0x1e0
[ 4423.859771][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4423.859771][   T73] 
[ 4423.861788][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4423.861788][   T73]      netdev_get_by_index+0x5e/0x80
[ 4423.861788][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4423.861788][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4423.861788][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4423.861788][   T73]      ipv6_add_addr+0x411/0x2000
[ 4423.861788][   T73]      inet6_addr_add+0x30e/0xa40
[ 4423.861788][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4423.861788][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4423.861788][   T73]      netlink_rcv_skb+0x130/0x360
[ 4423.861788][   T73]      netlink_unicast+0x449/0x710
[ 4423.861788][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4423.861788][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4423.861788][   T73]      ___sys_sendmsg+0xee/0x170
[ 4423.861788][   T73]      __sys_sendmsg+0xcd/0x170
[ 4423.861788][   T73]      do_syscall_64+0xc6/0x1e0
[ 4423.861788][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4423.861788][   T73] 
[ 4423.863866][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4423.863866][   T73]      netdev_get_by_index+0x5e/0x80
[ 4423.863866][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4423.863866][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4423.863866][   T73]      ip6_route_add+0x1c/0x140
[ 4423.863866][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4423.863866][   T73]      addrconf_add_dev+0xe2/0x170
[ 4423.863866][   T73]      inet6_addr_add+0x12f/0xa40
[ 4423.863866][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4423.863866][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4423.863866][   T73]      netlink_rcv_skb+0x130/0x360
[ 4423.863866][   T73]      netlink_unicast+0x449/0x710
[ 4423.863866][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4423.863866][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4423.863866][   T73]      ___sys_sendmsg+0xee/0x170
[ 4423.863866][   T73]      __sys_sendmsg+0xcd/0x170
[ 4423.863866][   T73]      do_syscall_64+0xc6/0x1e0
[ 4423.863866][   T73] 
[ 4423.865878][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4423.865878][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4423.865878][   T73]      ipv6_find_idev+0x102/0x170
[ 4423.865878][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4423.865878][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4423.865878][   T73]      netlink_rcv_skb+0x130/0x360
[ 4423.865878][   T73]      netlink_unicast+0x449/0x710
[ 4423.865878][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4423.865878][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4423.865878][   T73]      ___sys_sendmsg+0xee/0x170
[ 4423.865878][   T73]      __sys_sendmsg+0xcd/0x170
[ 4423.865878][   T73]      do_syscall_64+0xc6/0x1e0
[ 4423.865878][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4423.865878][   T73] 
[ 4423.867435][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4423.867435][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4423.867435][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4423.867435][   T73]      ipv6_find_idev+0x102/0x170
[ 4423.867435][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4423.867435][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4423.867435][   T73]      netlink_rcv_skb+0x130/0x360
[ 4423.867435][   T73]      netlink_unicast+0x449/0x710
[ 4423.867435][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4423.867435][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4423.867435][   T73]      ___sys_sendmsg+0xee/0x170
[ 4423.867435][   T73]      __sys_sendmsg+0xcd/0x170
[ 4423.867435][   T73]      do_syscall_64+0xc6/0x1e0
[ 4423.867435][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4423.867435][   T73] 
[ 4423.869148][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4423.869433][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4423.869433][   T73]      netdev_get_by_index+0x5e/0x80
[ 4423.869433][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4423.869433][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4423.869433][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4423.869433][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4423.869433][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4423.869433][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4423.869433][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4423.869433][   T73]      addrconf_dad_begin+0x310/0x670
[ 4423.869433][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4423.869433][   T73]      process_one_work+0x84d/0x18a0
[ 4423.869433][   T73]      worker_thread+0x587/0xd30
[ 4423.869433][   T73]      kthread+0x28a/0x350
[ 4423.869433][   T73]      ret_from_fork+0x31/0x70
[ 4423.869433][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4423.869433][   T73] 
[ 4423.871405][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4423.871405][   T73]      netdev_get_by_index+0x5e/0x80
[ 4423.871405][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4423.871405][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4423.871405][   T73]      ip6_route_add+0x1c/0x140
[ 4423.871405][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4423.871405][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4423.871405][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4423.871405][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4423.871405][   T73]      netlink_rcv_skb+0x130/0x360
[ 4423.871405][   T73]      netlink_unicast+0x449/0x710
[ 4423.871405][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4423.871405][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4423.871405][   T73]      ___sys_sendmsg+0xee/0x170
[ 4423.871405][   T73]      __sys_sendmsg+0xcd/0x170
[ 4423.871405][   T73]      do_syscall_64+0xc6/0x1e0
[ 4423.871405][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4423.871405][   T73] 
[ 4423.873430][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4423.873430][   T73]      netdev_get_by_index+0x5e/0x80
[ 4423.873430][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4423.873430][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4423.873430][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4423.873430][   T73]      ipv6_add_addr+0x411/0x2000
[ 4423.873430][   T73]      inet6_addr_add+0x30e/0xa40
[ 4423.873430][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4423.873430][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4423.873430][   T73]      netlink_rcv_skb+0x130/0x360
[ 4423.873430][   T73]      netlink_unicast+0x449/0x710
[ 4423.873430][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4423.873430][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4423.873430][   T73]      ___sys_sendmsg+0xee/0x170
[ 4423.873430][   T73]      __sys_sendmsg+0xcd/0x170
[ 4423.873430][   T73]      do_syscall_64+0xc6/0x1e0
[ 4423.873430][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4423.873430][   T73] 
[ 4423.875449][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4423.875449][   T73]      netdev_get_by_index+0x5e/0x80
[ 4423.875449][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4423.875449][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4423.875449][   T73]      ip6_route_add+0x1c/0x140
[ 4423.875449][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4423.875449][   T73]      addrconf_add_dev+0xe2/0x170
[ 4423.875449][   T73]      inet6_addr_add+0x12f/0xa40
[ 4423.875449][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4423.875449][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4423.875449][   T73]      netlink_rcv_skb+0x130/0x360
[ 4423.875449][   T73]      netlink_unicast+0x449/0x710
[ 4423.875449][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4423.875449][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4423.875449][   T73]      ___sys_sendmsg+0xee/0x170
[ 4423.875449][   T73]      __sys_sendmsg+0xcd/0x170
[ 4423.875449][   T73]      do_syscall_64+0xc6/0x1e0
[ 4423.875449][   T73] 
[ 4423.877429][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4423.877429][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4423.877429][   T73]      ipv6_find_idev+0x102/0x170
[ 4423.877429][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4423.877429][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4423.877429][   T73]      netlink_rcv_skb+0x130/0x360
[ 4423.877429][   T73]      netlink_unicast+0x449/0x710
[ 4423.877429][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4423.877429][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4423.877429][   T73]      ___sys_sendmsg+0xee/0x170
[ 4423.877429][   T73]      __sys_sendmsg+0xcd/0x170
[ 4423.877429][   T73]      do_syscall_64+0xc6/0x1e0
[ 4423.877429][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4423.877429][   T73] 
[ 4423.878969][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4423.878969][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4423.878969][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4423.878969][   T73]      ipv6_find_idev+0x102/0x170
[ 4423.878969][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4423.878969][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4423.878969][   T73]      netlink_rcv_skb+0x130/0x360
[ 4423.878969][   T73]      netlink_unicast+0x449/0x710
[ 4423.878969][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4423.878969][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4423.878969][   T73]      ___sys_sendmsg+0xee/0x170
[ 4423.878969][   T73]      __sys_sendmsg+0xcd/0x170
[ 4423.878969][   T73]      do_syscall_64+0xc6/0x1e0
[ 4423.878969][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4423.878969][   T73] 
[ 4423.880709][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4423.880977][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4423.880977][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4423.880977][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4423.880977][   T73]      fib6_nh_init+0xa22/0x1580
[ 4423.880977][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4423.880977][   T73]      ip6_route_add+0x1c/0x140
[ 4423.880977][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4423.880977][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4423.880977][   T73]      netlink_rcv_skb+0x130/0x360
[ 4423.880977][   T73]      netlink_unicast+0x449/0x710
[ 4423.880977][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4423.880977][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4423.880977][   T73]      ___sys_sendmsg+0xee/0x170
[ 4423.880977][   T73]      __sys_sendmsg+0xcd/0x170
[ 4423.880977][   T73]      do_syscall_64+0xc6/0x1e0
[ 4423.880977][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4423.880977][   T73] 
[ 4423.883048][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4423.883048][   T73]      dst_init+0x84/0x4a0
[ 4423.883048][   T73]      dst_alloc+0x97/0x150
[ 4423.883048][   T73]      ip6_dst_alloc+0x23/0x90
[ 4423.883048][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4423.883048][   T73]      ip6_pol_route+0x56f/0x840
[ 4423.883048][   T73]      fib6_rule_lookup+0x456/0x630
[ 4423.883048][   T73]      ip6_route_input+0x59c/0xa50
[ 4423.883048][   T73]      ipv6_rcv+0x397/0x810
[ 4423.883048][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4423.883048][   T73]      process_backlog+0x101/0x620
[ 4423.883048][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4423.883048][   T73]      net_rx_action+0x495/0xbe0
[ 4423.883048][   T73]      __do_softirq+0x1b5/0x7f6
[ 4423.883048][   T73] 
[ 4423.884974][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4423.884974][   T73]      netdev_get_by_index+0x5e/0x80
[ 4423.884974][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4423.884974][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4423.884974][   T73]      ip6_route_add+0x1c/0x140
[ 4423.884974][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4423.884974][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4423.884974][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4423.884974][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4423.884974][   T73]      netlink_rcv_skb+0x130/0x360
[ 4423.884974][   T73]      netlink_unicast+0x449/0x710
[ 4423.884974][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4423.884974][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4423.884974][   T73]      ___sys_sendmsg+0xee/0x170
[ 4423.884974][   T73]      __sys_sendmsg+0xcd/0x170
[ 4423.884974][   T73]      do_syscall_64+0xc6/0x1e0
[ 4423.884974][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4423.884974][   T73] 
[ 4423.887229][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4423.887229][   T73]      netdev_get_by_index+0x5e/0x80
[ 4423.887229][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4423.887229][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4423.887229][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4423.887229][   T73]      ipv6_add_addr+0x411/0x2000
[ 4423.887229][   T73]      inet6_addr_add+0x30e/0xa40
[ 4423.887229][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4423.887229][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4423.887229][   T73]      netlink_rcv_skb+0x130/0x360
[ 4423.887229][   T73]      netlink_unicast+0x449/0x710
[ 4423.887229][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4423.887229][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4423.887229][   T73]      ___sys_sendmsg+0xee/0x170
[ 4423.887229][   T73]      __sys_sendmsg+0xcd/0x170
[ 4423.887229][   T73]      do_syscall_64+0xc6/0x1e0
[ 4423.887229][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4423.887229][   T73] 
[ 4423.889423][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4423.889423][   T73]      netdev_get_by_index+0x5e/0x80
[ 4423.889423][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4423.889423][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4423.889423][   T73]      ip6_route_add+0x1c/0x140
[ 4423.889423][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4423.889423][   T73]      addrconf_add_dev+0xe2/0x170
[ 4423.889423][   T73]      inet6_addr_add+0x12f/0xa40
[ 4423.889423][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4423.889423][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4423.889423][   T73]      netlink_rcv_skb+0x130/0x360
[ 4423.889423][   T73]      netlink_unicast+0x449/0x710
[ 4423.889423][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4423.889423][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4423.889423][   T73]      ___sys_sendmsg+0xee/0x170
[ 4423.889423][   T73]      __sys_sendmsg+0xcd/0x170
[ 4423.889423][   T73]      do_syscall_64+0xc6/0x1e0
[ 4423.889423][   T73] 
[ 4423.891589][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4423.891589][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4423.891589][   T73]      ipv6_find_idev+0x102/0x170
[ 4423.891589][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4423.891589][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4423.891589][   T73]      netlink_rcv_skb+0x130/0x360
[ 4423.891589][   T73]      netlink_unicast+0x449/0x710
[ 4423.891589][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4423.891589][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4423.891589][   T73]      ___sys_sendmsg+0xee/0x170
[ 4423.891589][   T73]      __sys_sendmsg+0xcd/0x170
[ 4423.891589][   T73]      do_syscall_64+0xc6/0x1e0
[ 4423.891589][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4423.891589][   T73] 
[ 4423.893386][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4423.893386][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4423.893386][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4423.893386][   T73]      ipv6_find_idev+0x102/0x170
[ 4423.893386][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4423.893386][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4423.893386][   T73]      netlink_rcv_skb+0x130/0x360
[ 4423.893386][   T73]      netlink_unicast+0x449/0x710
[ 4423.893386][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4423.893386][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4423.893386][   T73]      ___sys_sendmsg+0xee/0x170
[ 4423.893386][   T73]      __sys_sendmsg+0xcd/0x170
[ 4423.893386][   T73]      do_syscall_64+0xc6/0x1e0
[ 4423.893386][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4423.893386][   T73] 
[ 4423.895270][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4423.895620][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4423.895620][   T73]      netdev_get_by_index+0x5e/0x80
[ 4423.895620][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4423.895620][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4423.895620][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4423.895620][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4423.895620][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4423.895620][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4423.895620][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4423.895620][   T73]      addrconf_dad_begin+0x310/0x670
[ 4423.895620][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4423.895620][   T73]      process_one_work+0x84d/0x18a0
[ 4423.895620][   T73]      worker_thread+0x587/0xd30
[ 4423.895620][   T73]      kthread+0x28a/0x350
[ 4423.895620][   T73]      ret_from_fork+0x31/0x70
[ 4423.895620][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4423.895620][   T73] 
[ 4423.897729][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4423.897729][   T73]      netdev_get_by_index+0x5e/0x80
[ 4423.897729][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4423.897729][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4423.897729][   T73]      ip6_route_add+0x1c/0x140
[ 4423.897729][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4423.897729][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4423.897729][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4423.897729][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4423.897729][   T73]      netlink_rcv_skb+0x130/0x360
[ 4423.897729][   T73]      netlink_unicast+0x449/0x710
[ 4423.897729][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4423.897729][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4423.897729][   T73]      ___sys_sendmsg+0xee/0x170
[ 4423.897729][   T73]      __sys_sendmsg+0xcd/0x170
[ 4423.897729][   T73]      do_syscall_64+0xc6/0x1e0
[ 4423.897729][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4423.897729][   T73] 
[ 4423.899976][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4423.899976][   T73]      netdev_get_by_index+0x5e/0x80
[ 4423.899976][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4423.899976][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4423.899976][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4423.899976][   T73]      ipv6_add_addr+0x411/0x2000
[ 4423.899976][   T73]      inet6_addr_add+0x30e/0xa40
[ 4423.899976][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4423.899976][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4423.899976][   T73]      netlink_rcv_skb+0x130/0x360
[ 4423.899976][   T73]      netlink_unicast+0x449/0x710
[ 4423.899976][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4423.899976][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4423.899976][   T73]      ___sys_sendmsg+0xee/0x170
[ 4423.899976][   T73]      __sys_sendmsg+0xcd/0x170
[ 4423.899976][   T73]      do_syscall_64+0xc6/0x1e0
[ 4423.899976][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4423.899976][   T73] 
[ 4423.902240][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4423.902240][   T73]      netdev_get_by_index+0x5e/0x80
[ 4423.902240][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4423.902240][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4423.902240][   T73]      ip6_route_add+0x1c/0x140
[ 4423.902240][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4423.902240][   T73]      addrconf_add_dev+0xe2/0x170
[ 4423.902240][   T73]      inet6_addr_add+0x12f/0xa40
[ 4423.902240][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4423.902240][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4423.902240][   T73]      netlink_rcv_skb+0x130/0x360
[ 4423.902240][   T73]      netlink_unicast+0x449/0x710
[ 4423.902240][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4423.902240][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4423.902240][   T73]      ___sys_sendmsg+0xee/0x170
[ 4423.902240][   T73]      __sys_sendmsg+0xcd/0x170
[ 4423.902240][   T73]      do_syscall_64+0xc6/0x1e0
[ 4423.902240][   T73] 
[ 4423.904550][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4423.904550][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4423.904550][   T73]      ipv6_find_idev+0x102/0x170
[ 4423.904550][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4423.904550][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4423.904550][   T73]      netlink_rcv_skb+0x130/0x360
[ 4423.904550][   T73]      netlink_unicast+0x449/0x710
[ 4423.904550][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4423.904550][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4423.904550][   T73]      ___sys_sendmsg+0xee/0x170
[ 4423.904550][   T73]      __sys_sendmsg+0xcd/0x170
[ 4423.904550][   T73]      do_syscall_64+0xc6/0x1e0
[ 4423.904550][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4423.904550][   T73] 
[ 4423.906286][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4423.906286][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4423.906286][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4423.906286][   T73]      ipv6_find_idev+0x102/0x170
[ 4423.906286][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4423.906286][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4423.906286][   T73]      netlink_rcv_skb+0x130/0x360
[ 4423.906286][   T73]      netlink_unicast+0x449/0x710
[ 4423.906286][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4423.906286][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4423.906286][   T73]      ___sys_sendmsg+0xee/0x170
[ 4423.906286][   T73]      __sys_sendmsg+0xcd/0x170
[ 4423.906286][   T73]      do_syscall_64+0xc6/0x1e0
[ 4423.906286][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4423.906286][   T73] 
[ 4434.143794][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4434.144268][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4434.144268][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4434.144268][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4434.144268][   T73]      fib6_nh_init+0xa22/0x1580
[ 4434.144268][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4434.144268][   T73]      ip6_route_add+0x1c/0x140
[ 4434.144268][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4434.144268][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4434.144268][   T73]      netlink_rcv_skb+0x130/0x360
[ 4434.144268][   T73]      netlink_unicast+0x449/0x710
[ 4434.144268][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4434.144268][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4434.144268][   T73]      ___sys_sendmsg+0xee/0x170
[ 4434.144268][   T73]      __sys_sendmsg+0xcd/0x170
[ 4434.144268][   T73]      do_syscall_64+0xc6/0x1e0
[ 4434.144268][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4434.144268][   T73] 
[ 4434.146173][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4434.146173][   T73]      dst_init+0x84/0x4a0
[ 4434.146173][   T73]      dst_alloc+0x97/0x150
[ 4434.146173][   T73]      ip6_dst_alloc+0x23/0x90
[ 4434.146173][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4434.146173][   T73]      ip6_pol_route+0x56f/0x840
[ 4434.146173][   T73]      fib6_rule_lookup+0x456/0x630
[ 4434.146173][   T73]      ip6_route_input+0x59c/0xa50
[ 4434.146173][   T73]      ipv6_rcv+0x397/0x810
[ 4434.146173][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4434.146173][   T73]      process_backlog+0x101/0x620
[ 4434.146173][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4434.146173][   T73]      net_rx_action+0x495/0xbe0
[ 4434.146173][   T73]      __do_softirq+0x1b5/0x7f6
[ 4434.146173][   T73] 
[ 4434.147817][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4434.147817][   T73]      netdev_get_by_index+0x5e/0x80
[ 4434.147817][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4434.147817][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4434.147817][   T73]      ip6_route_add+0x1c/0x140
[ 4434.147817][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4434.147817][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4434.147817][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4434.147817][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4434.147817][   T73]      netlink_rcv_skb+0x130/0x360
[ 4434.147817][   T73]      netlink_unicast+0x449/0x710
[ 4434.147817][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4434.147817][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4434.147817][   T73]      ___sys_sendmsg+0xee/0x170
[ 4434.147817][   T73]      __sys_sendmsg+0xcd/0x170
[ 4434.147817][   T73]      do_syscall_64+0xc6/0x1e0
[ 4434.147817][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4434.147817][   T73] 
[ 4434.149845][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4434.149845][   T73]      netdev_get_by_index+0x5e/0x80
[ 4434.149845][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4434.149845][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4434.149845][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4434.149845][   T73]      ipv6_add_addr+0x411/0x2000
[ 4434.149845][   T73]      inet6_addr_add+0x30e/0xa40
[ 4434.149845][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4434.149845][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4434.149845][   T73]      netlink_rcv_skb+0x130/0x360
[ 4434.149845][   T73]      netlink_unicast+0x449/0x710
[ 4434.149845][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4434.149845][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4434.149845][   T73]      ___sys_sendmsg+0xee/0x170
[ 4434.149845][   T73]      __sys_sendmsg+0xcd/0x170
[ 4434.149845][   T73]      do_syscall_64+0xc6/0x1e0
[ 4434.149845][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4434.149845][   T73] 
[ 4434.151847][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4434.151847][   T73]      netdev_get_by_index+0x5e/0x80
[ 4434.151847][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4434.151847][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4434.151847][   T73]      ip6_route_add+0x1c/0x140
[ 4434.151847][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4434.151847][   T73]      addrconf_add_dev+0xe2/0x170
[ 4434.151847][   T73]      inet6_addr_add+0x12f/0xa40
[ 4434.151847][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4434.151847][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4434.151847][   T73]      netlink_rcv_skb+0x130/0x360
[ 4434.151847][   T73]      netlink_unicast+0x449/0x710
[ 4434.151847][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4434.151847][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4434.151847][   T73]      ___sys_sendmsg+0xee/0x170
[ 4434.151847][   T73]      __sys_sendmsg+0xcd/0x170
[ 4434.151847][   T73]      do_syscall_64+0xc6/0x1e0
[ 4434.151847][   T73] 
[ 4434.153816][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4434.153816][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4434.153816][   T73]      ipv6_find_idev+0x102/0x170
[ 4434.153816][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4434.153816][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4434.153816][   T73]      netlink_rcv_skb+0x130/0x360
[ 4434.153816][   T73]      netlink_unicast+0x449/0x710
[ 4434.153816][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4434.153816][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4434.153816][   T73]      ___sys_sendmsg+0xee/0x170
[ 4434.153816][   T73]      __sys_sendmsg+0xcd/0x170
[ 4434.153816][   T73]      do_syscall_64+0xc6/0x1e0
[ 4434.153816][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4434.153816][   T73] 
[ 4434.155365][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4434.155365][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4434.155365][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4434.155365][   T73]      ipv6_find_idev+0x102/0x170
[ 4434.155365][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4434.155365][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4434.155365][   T73]      netlink_rcv_skb+0x130/0x360
[ 4434.155365][   T73]      netlink_unicast+0x449/0x710
[ 4434.155365][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4434.155365][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4434.155365][   T73]      ___sys_sendmsg+0xee/0x170
[ 4434.155365][   T73]      __sys_sendmsg+0xcd/0x170
[ 4434.155365][   T73]      do_syscall_64+0xc6/0x1e0
[ 4434.155365][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4434.155365][   T73] 
[ 4434.157063][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4434.157345][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4434.157345][   T73]      netdev_get_by_index+0x5e/0x80
[ 4434.157345][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4434.157345][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4434.157345][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4434.157345][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4434.157345][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4434.157345][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4434.157345][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4434.157345][   T73]      addrconf_dad_begin+0x310/0x670
[ 4434.157345][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4434.157345][   T73]      process_one_work+0x84d/0x18a0
[ 4434.157345][   T73]      worker_thread+0x587/0xd30
[ 4434.157345][   T73]      kthread+0x28a/0x350
[ 4434.157345][   T73]      ret_from_fork+0x31/0x70
[ 4434.157345][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4434.157345][   T73] 
[ 4434.159282][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4434.159282][   T73]      netdev_get_by_index+0x5e/0x80
[ 4434.159282][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4434.159282][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4434.159282][   T73]      ip6_route_add+0x1c/0x140
[ 4434.159282][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4434.159282][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4434.159282][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4434.159282][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4434.159282][   T73]      netlink_rcv_skb+0x130/0x360
[ 4434.159282][   T73]      netlink_unicast+0x449/0x710
[ 4434.159282][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4434.159282][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4434.159282][   T73]      ___sys_sendmsg+0xee/0x170
[ 4434.159282][   T73]      __sys_sendmsg+0xcd/0x170
[ 4434.159282][   T73]      do_syscall_64+0xc6/0x1e0
[ 4434.159282][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4434.159282][   T73] 
[ 4434.161294][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4434.161294][   T73]      netdev_get_by_index+0x5e/0x80
[ 4434.161294][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4434.161294][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4434.161294][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4434.161294][   T73]      ipv6_add_addr+0x411/0x2000
[ 4434.161294][   T73]      inet6_addr_add+0x30e/0xa40
[ 4434.161294][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4434.161294][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4434.161294][   T73]      netlink_rcv_skb+0x130/0x360
[ 4434.161294][   T73]      netlink_unicast+0x449/0x710
[ 4434.161294][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4434.161294][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4434.161294][   T73]      ___sys_sendmsg+0xee/0x170
[ 4434.161294][   T73]      __sys_sendmsg+0xcd/0x170
[ 4434.161294][   T73]      do_syscall_64+0xc6/0x1e0
[ 4434.161294][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4434.161294][   T73] 
[ 4434.163293][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4434.163293][   T73]      netdev_get_by_index+0x5e/0x80
[ 4434.163293][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4434.163293][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4434.163293][   T73]      ip6_route_add+0x1c/0x140
[ 4434.163293][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4434.163293][   T73]      addrconf_add_dev+0xe2/0x170
[ 4434.163293][   T73]      inet6_addr_add+0x12f/0xa40
[ 4434.163293][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4434.163293][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4434.163293][   T73]      netlink_rcv_skb+0x130/0x360
[ 4434.163293][   T73]      netlink_unicast+0x449/0x710
[ 4434.163293][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4434.163293][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4434.163293][   T73]      ___sys_sendmsg+0xee/0x170
[ 4434.163293][   T73]      __sys_sendmsg+0xcd/0x170
[ 4434.163293][   T73]      do_syscall_64+0xc6/0x1e0
[ 4434.163293][   T73] 
[ 4434.165275][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4434.165275][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4434.165275][   T73]      ipv6_find_idev+0x102/0x170
[ 4434.165275][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4434.165275][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4434.165275][   T73]      netlink_rcv_skb+0x130/0x360
[ 4434.165275][   T73]      netlink_unicast+0x449/0x710
[ 4434.165275][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4434.165275][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4434.165275][   T73]      ___sys_sendmsg+0xee/0x170
[ 4434.165275][   T73]      __sys_sendmsg+0xcd/0x170
[ 4434.165275][   T73]      do_syscall_64+0xc6/0x1e0
[ 4434.165275][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4434.165275][   T73] 
[ 4434.166832][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4434.166832][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4434.166832][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4434.166832][   T73]      ipv6_find_idev+0x102/0x170
[ 4434.166832][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4434.166832][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4434.166832][   T73]      netlink_rcv_skb+0x130/0x360
[ 4434.166832][   T73]      netlink_unicast+0x449/0x710
[ 4434.166832][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4434.166832][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4434.166832][   T73]      ___sys_sendmsg+0xee/0x170
[ 4434.166832][   T73]      __sys_sendmsg+0xcd/0x170
[ 4434.166832][   T73]      do_syscall_64+0xc6/0x1e0
[ 4434.166832][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4434.166832][   T73] 
[ 4434.168530][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4434.168807][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4434.168807][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4434.168807][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4434.168807][   T73]      fib6_nh_init+0xa22/0x1580
[ 4434.168807][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4434.168807][   T73]      ip6_route_add+0x1c/0x140
[ 4434.168807][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4434.168807][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4434.168807][   T73]      netlink_rcv_skb+0x130/0x360
[ 4434.168807][   T73]      netlink_unicast+0x449/0x710
[ 4434.168807][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4434.168807][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4434.168807][   T73]      ___sys_sendmsg+0xee/0x170
[ 4434.168807][   T73]      __sys_sendmsg+0xcd/0x170
[ 4434.168807][   T73]      do_syscall_64+0xc6/0x1e0
[ 4434.168807][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4434.168807][   T73] 
[ 4434.170897][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4434.170897][   T73]      dst_init+0x84/0x4a0
[ 4434.170897][   T73]      dst_alloc+0x97/0x150
[ 4434.170897][   T73]      ip6_dst_alloc+0x23/0x90
[ 4434.170897][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4434.170897][   T73]      ip6_pol_route+0x56f/0x840
[ 4434.170897][   T73]      fib6_rule_lookup+0x456/0x630
[ 4434.170897][   T73]      ip6_route_input+0x59c/0xa50
[ 4434.170897][   T73]      ipv6_rcv+0x397/0x810
[ 4434.170897][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4434.170897][   T73]      process_backlog+0x101/0x620
[ 4434.170897][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4434.170897][   T73]      net_rx_action+0x495/0xbe0
[ 4434.170897][   T73]      __do_softirq+0x1b5/0x7f6
[ 4434.170897][   T73] 
[ 4434.172729][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4434.172729][   T73]      netdev_get_by_index+0x5e/0x80
[ 4434.172729][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4434.172729][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4434.172729][   T73]      ip6_route_add+0x1c/0x140
[ 4434.172729][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4434.172729][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4434.172729][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4434.172729][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4434.172729][   T73]      netlink_rcv_skb+0x130/0x360
[ 4434.172729][   T73]      netlink_unicast+0x449/0x710
[ 4434.172729][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4434.172729][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4434.172729][   T73]      ___sys_sendmsg+0xee/0x170
[ 4434.172729][   T73]      __sys_sendmsg+0xcd/0x170
[ 4434.172729][   T73]      do_syscall_64+0xc6/0x1e0
[ 4434.172729][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4434.172729][   T73] 
[ 4434.175527][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4434.175527][   T73]      netdev_get_by_index+0x5e/0x80
[ 4434.175527][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4434.175527][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4434.175527][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4434.175527][   T73]      ipv6_add_addr+0x411/0x2000
[ 4434.175527][   T73]      inet6_addr_add+0x30e/0xa40
[ 4434.175527][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4434.175527][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4434.175527][   T73]      netlink_rcv_skb+0x130/0x360
[ 4434.175527][   T73]      netlink_unicast+0x449/0x710
[ 4434.175527][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4434.175527][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4434.175527][   T73]      ___sys_sendmsg+0xee/0x170
[ 4434.175527][   T73]      __sys_sendmsg+0xcd/0x170
[ 4434.175527][   T73]      do_syscall_64+0xc6/0x1e0
[ 4434.175527][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4434.175527][   T73] 
[ 4434.177778][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4434.177778][   T73]      netdev_get_by_index+0x5e/0x80
[ 4434.177778][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4434.177778][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4434.177778][   T73]      ip6_route_add+0x1c/0x140
[ 4434.177778][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4434.177778][   T73]      addrconf_add_dev+0xe2/0x170
[ 4434.177778][   T73]      inet6_addr_add+0x12f/0xa40
[ 4434.177778][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4434.177778][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4434.177778][   T73]      netlink_rcv_skb+0x130/0x360
[ 4434.177778][   T73]      netlink_unicast+0x449/0x710
[ 4434.177778][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4434.177778][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4434.177778][   T73]      ___sys_sendmsg+0xee/0x170
[ 4434.177778][   T73]      __sys_sendmsg+0xcd/0x170
[ 4434.177778][   T73]      do_syscall_64+0xc6/0x1e0
[ 4434.177778][   T73] 
[ 4434.180032][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4434.180032][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4434.180032][   T73]      ipv6_find_idev+0x102/0x170
[ 4434.180032][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4434.180032][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4434.180032][   T73]      netlink_rcv_skb+0x130/0x360
[ 4434.180032][   T73]      netlink_unicast+0x449/0x710
[ 4434.180032][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4434.180032][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4434.180032][   T73]      ___sys_sendmsg+0xee/0x170
[ 4434.180032][   T73]      __sys_sendmsg+0xcd/0x170
[ 4434.180032][   T73]      do_syscall_64+0xc6/0x1e0
[ 4434.180032][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4434.180032][   T73] 
[ 4434.181781][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4434.181781][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4434.181781][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4434.181781][   T73]      ipv6_find_idev+0x102/0x170
[ 4434.181781][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4434.181781][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4434.181781][   T73]      netlink_rcv_skb+0x130/0x360
[ 4434.181781][   T73]      netlink_unicast+0x449/0x710
[ 4434.181781][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4434.181781][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4434.181781][   T73]      ___sys_sendmsg+0xee/0x170
[ 4434.181781][   T73]      __sys_sendmsg+0xcd/0x170
[ 4434.181781][   T73]      do_syscall_64+0xc6/0x1e0
[ 4434.181781][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4434.181781][   T73] 
[ 4434.185917][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4434.186287][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4434.186287][   T73]      netdev_get_by_index+0x5e/0x80
[ 4434.186287][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4434.186287][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4434.186287][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4434.186287][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4434.186287][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4434.186287][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4434.186287][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4434.186287][   T73]      addrconf_dad_begin+0x310/0x670
[ 4434.186287][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4434.186287][   T73]      process_one_work+0x84d/0x18a0
[ 4434.186287][   T73]      worker_thread+0x587/0xd30
[ 4434.186287][   T73]      kthread+0x28a/0x350
[ 4434.186287][   T73]      ret_from_fork+0x31/0x70
[ 4434.186287][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4434.186287][   T73] 
[ 4434.188341][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4434.188341][   T73]      netdev_get_by_index+0x5e/0x80
[ 4434.188341][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4434.188341][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4434.188341][   T73]      ip6_route_add+0x1c/0x140
[ 4434.188341][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4434.188341][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4434.188341][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4434.188341][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4434.188341][   T73]      netlink_rcv_skb+0x130/0x360
[ 4434.188341][   T73]      netlink_unicast+0x449/0x710
[ 4434.188341][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4434.188341][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4434.188341][   T73]      ___sys_sendmsg+0xee/0x170
[ 4434.188341][   T73]      __sys_sendmsg+0xcd/0x170
[ 4434.188341][   T73]      do_syscall_64+0xc6/0x1e0
[ 4434.188341][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4434.188341][   T73] 
[ 4434.190664][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4434.190664][   T73]      netdev_get_by_index+0x5e/0x80
[ 4434.190664][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4434.190664][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4434.190664][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4434.190664][   T73]      ipv6_add_addr+0x411/0x2000
[ 4434.190664][   T73]      inet6_addr_add+0x30e/0xa40
[ 4434.190664][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4434.190664][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4434.190664][   T73]      netlink_rcv_skb+0x130/0x360
[ 4434.190664][   T73]      netlink_unicast+0x449/0x710
[ 4434.190664][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4434.190664][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4434.190664][   T73]      ___sys_sendmsg+0xee/0x170
[ 4434.190664][   T73]      __sys_sendmsg+0xcd/0x170
[ 4434.190664][   T73]      do_syscall_64+0xc6/0x1e0
[ 4434.190664][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4434.190664][   T73] 
[ 4434.192919][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4434.192919][   T73]      netdev_get_by_index+0x5e/0x80
[ 4434.192919][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4434.192919][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4434.192919][   T73]      ip6_route_add+0x1c/0x140
[ 4434.192919][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4434.192919][   T73]      addrconf_add_dev+0xe2/0x170
[ 4434.192919][   T73]      inet6_addr_add+0x12f/0xa40
[ 4434.192919][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4434.192919][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4434.192919][   T73]      netlink_rcv_skb+0x130/0x360
[ 4434.192919][   T73]      netlink_unicast+0x449/0x710
[ 4434.192919][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4434.192919][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4434.192919][   T73]      ___sys_sendmsg+0xee/0x170
[ 4434.192919][   T73]      __sys_sendmsg+0xcd/0x170
[ 4434.192919][   T73]      do_syscall_64+0xc6/0x1e0
[ 4434.192919][   T73] 
[ 4434.195152][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4434.195152][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4434.195152][   T73]      ipv6_find_idev+0x102/0x170
[ 4434.195152][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4434.195152][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4434.195152][   T73]      netlink_rcv_skb+0x130/0x360
[ 4434.195152][   T73]      netlink_unicast+0x449/0x710
[ 4434.195152][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4434.195152][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4434.195152][   T73]      ___sys_sendmsg+0xee/0x170
[ 4434.195152][   T73]      __sys_sendmsg+0xcd/0x170
[ 4434.195152][   T73]      do_syscall_64+0xc6/0x1e0
[ 4434.195152][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4434.195152][   T73] 
[ 4434.196884][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4434.196884][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4434.196884][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4434.196884][   T73]      ipv6_find_idev+0x102/0x170
[ 4434.196884][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4434.196884][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4434.196884][   T73]      netlink_rcv_skb+0x130/0x360
[ 4434.196884][   T73]      netlink_unicast+0x449/0x710
[ 4434.196884][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4434.196884][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4434.196884][   T73]      ___sys_sendmsg+0xee/0x170
[ 4434.196884][   T73]      __sys_sendmsg+0xcd/0x170
[ 4434.196884][   T73]      do_syscall_64+0xc6/0x1e0
[ 4434.196884][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4434.196884][   T73] 
[ 4444.439760][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4444.440268][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4444.440268][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4444.440268][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4444.440268][   T73]      fib6_nh_init+0xa22/0x1580
[ 4444.440268][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4444.440268][   T73]      ip6_route_add+0x1c/0x140
[ 4444.440268][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4444.440268][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4444.440268][   T73]      netlink_rcv_skb+0x130/0x360
[ 4444.440268][   T73]      netlink_unicast+0x449/0x710
[ 4444.440268][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4444.440268][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4444.440268][   T73]      ___sys_sendmsg+0xee/0x170
[ 4444.440268][   T73]      __sys_sendmsg+0xcd/0x170
[ 4444.440268][   T73]      do_syscall_64+0xc6/0x1e0
[ 4444.440268][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4444.440268][   T73] 
[ 4444.442182][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4444.442182][   T73]      dst_init+0x84/0x4a0
[ 4444.442182][   T73]      dst_alloc+0x97/0x150
[ 4444.442182][   T73]      ip6_dst_alloc+0x23/0x90
[ 4444.442182][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4444.442182][   T73]      ip6_pol_route+0x56f/0x840
[ 4444.442182][   T73]      fib6_rule_lookup+0x456/0x630
[ 4444.442182][   T73]      ip6_route_input+0x59c/0xa50
[ 4444.442182][   T73]      ipv6_rcv+0x397/0x810
[ 4444.442182][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4444.442182][   T73]      process_backlog+0x101/0x620
[ 4444.442182][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4444.442182][   T73]      net_rx_action+0x495/0xbe0
[ 4444.442182][   T73]      __do_softirq+0x1b5/0x7f6
[ 4444.442182][   T73] 
[ 4444.443864][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4444.443864][   T73]      netdev_get_by_index+0x5e/0x80
[ 4444.443864][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4444.443864][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4444.443864][   T73]      ip6_route_add+0x1c/0x140
[ 4444.443864][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4444.443864][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4444.443864][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4444.443864][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4444.443864][   T73]      netlink_rcv_skb+0x130/0x360
[ 4444.443864][   T73]      netlink_unicast+0x449/0x710
[ 4444.443864][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4444.443864][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4444.443864][   T73]      ___sys_sendmsg+0xee/0x170
[ 4444.443864][   T73]      __sys_sendmsg+0xcd/0x170
[ 4444.443864][   T73]      do_syscall_64+0xc6/0x1e0
[ 4444.443864][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4444.443864][   T73] 
[ 4444.445878][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4444.445878][   T73]      netdev_get_by_index+0x5e/0x80
[ 4444.445878][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4444.445878][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4444.445878][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4444.445878][   T73]      ipv6_add_addr+0x411/0x2000
[ 4444.445878][   T73]      inet6_addr_add+0x30e/0xa40
[ 4444.445878][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4444.445878][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4444.445878][   T73]      netlink_rcv_skb+0x130/0x360
[ 4444.445878][   T73]      netlink_unicast+0x449/0x710
[ 4444.445878][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4444.445878][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4444.445878][   T73]      ___sys_sendmsg+0xee/0x170
[ 4444.445878][   T73]      __sys_sendmsg+0xcd/0x170
[ 4444.445878][   T73]      do_syscall_64+0xc6/0x1e0
[ 4444.445878][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4444.445878][   T73] 
[ 4444.447895][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4444.447895][   T73]      netdev_get_by_index+0x5e/0x80
[ 4444.447895][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4444.447895][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4444.447895][   T73]      ip6_route_add+0x1c/0x140
[ 4444.447895][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4444.447895][   T73]      addrconf_add_dev+0xe2/0x170
[ 4444.447895][   T73]      inet6_addr_add+0x12f/0xa40
[ 4444.447895][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4444.447895][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4444.447895][   T73]      netlink_rcv_skb+0x130/0x360
[ 4444.447895][   T73]      netlink_unicast+0x449/0x710
[ 4444.447895][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4444.447895][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4444.447895][   T73]      ___sys_sendmsg+0xee/0x170
[ 4444.447895][   T73]      __sys_sendmsg+0xcd/0x170
[ 4444.447895][   T73]      do_syscall_64+0xc6/0x1e0
[ 4444.447895][   T73] 
[ 4444.449864][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4444.449864][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4444.449864][   T73]      ipv6_find_idev+0x102/0x170
[ 4444.449864][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4444.449864][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4444.449864][   T73]      netlink_rcv_skb+0x130/0x360
[ 4444.449864][   T73]      netlink_unicast+0x449/0x710
[ 4444.449864][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4444.449864][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4444.449864][   T73]      ___sys_sendmsg+0xee/0x170
[ 4444.449864][   T73]      __sys_sendmsg+0xcd/0x170
[ 4444.449864][   T73]      do_syscall_64+0xc6/0x1e0
[ 4444.449864][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4444.449864][   T73] 
[ 4444.451413][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4444.451413][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4444.451413][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4444.451413][   T73]      ipv6_find_idev+0x102/0x170
[ 4444.451413][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4444.451413][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4444.451413][   T73]      netlink_rcv_skb+0x130/0x360
[ 4444.451413][   T73]      netlink_unicast+0x449/0x710
[ 4444.451413][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4444.451413][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4444.451413][   T73]      ___sys_sendmsg+0xee/0x170
[ 4444.451413][   T73]      __sys_sendmsg+0xcd/0x170
[ 4444.451413][   T73]      do_syscall_64+0xc6/0x1e0
[ 4444.451413][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4444.451413][   T73] 
[ 4444.453124][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4444.453414][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4444.453414][   T73]      netdev_get_by_index+0x5e/0x80
[ 4444.453414][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4444.453414][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4444.453414][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4444.453414][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4444.453414][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4444.453414][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4444.453414][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4444.453414][   T73]      addrconf_dad_begin+0x310/0x670
[ 4444.453414][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4444.453414][   T73]      process_one_work+0x84d/0x18a0
[ 4444.453414][   T73]      worker_thread+0x587/0xd30
[ 4444.453414][   T73]      kthread+0x28a/0x350
[ 4444.453414][   T73]      ret_from_fork+0x31/0x70
[ 4444.453414][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4444.453414][   T73] 
[ 4444.455341][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4444.455341][   T73]      netdev_get_by_index+0x5e/0x80
[ 4444.455341][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4444.455341][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4444.455341][   T73]      ip6_route_add+0x1c/0x140
[ 4444.455341][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4444.455341][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4444.455341][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4444.455341][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4444.455341][   T73]      netlink_rcv_skb+0x130/0x360
[ 4444.455341][   T73]      netlink_unicast+0x449/0x710
[ 4444.455341][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4444.455341][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4444.455341][   T73]      ___sys_sendmsg+0xee/0x170
[ 4444.455341][   T73]      __sys_sendmsg+0xcd/0x170
[ 4444.455341][   T73]      do_syscall_64+0xc6/0x1e0
[ 4444.455341][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4444.455341][   T73] 
[ 4444.457347][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4444.457347][   T73]      netdev_get_by_index+0x5e/0x80
[ 4444.457347][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4444.457347][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4444.457347][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4444.457347][   T73]      ipv6_add_addr+0x411/0x2000
[ 4444.457347][   T73]      inet6_addr_add+0x30e/0xa40
[ 4444.457347][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4444.457347][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4444.457347][   T73]      netlink_rcv_skb+0x130/0x360
[ 4444.457347][   T73]      netlink_unicast+0x449/0x710
[ 4444.457347][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4444.457347][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4444.457347][   T73]      ___sys_sendmsg+0xee/0x170
[ 4444.457347][   T73]      __sys_sendmsg+0xcd/0x170
[ 4444.457347][   T73]      do_syscall_64+0xc6/0x1e0
[ 4444.457347][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4444.457347][   T73] 
[ 4444.459360][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4444.459360][   T73]      netdev_get_by_index+0x5e/0x80
[ 4444.459360][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4444.459360][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4444.459360][   T73]      ip6_route_add+0x1c/0x140
[ 4444.459360][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4444.459360][   T73]      addrconf_add_dev+0xe2/0x170
[ 4444.459360][   T73]      inet6_addr_add+0x12f/0xa40
[ 4444.459360][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4444.459360][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4444.459360][   T73]      netlink_rcv_skb+0x130/0x360
[ 4444.459360][   T73]      netlink_unicast+0x449/0x710
[ 4444.459360][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4444.459360][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4444.459360][   T73]      ___sys_sendmsg+0xee/0x170
[ 4444.459360][   T73]      __sys_sendmsg+0xcd/0x170
[ 4444.459360][   T73]      do_syscall_64+0xc6/0x1e0
[ 4444.459360][   T73] 
[ 4444.461339][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4444.461339][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4444.461339][   T73]      ipv6_find_idev+0x102/0x170
[ 4444.461339][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4444.461339][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4444.461339][   T73]      netlink_rcv_skb+0x130/0x360
[ 4444.461339][   T73]      netlink_unicast+0x449/0x710
[ 4444.461339][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4444.461339][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4444.461339][   T73]      ___sys_sendmsg+0xee/0x170
[ 4444.461339][   T73]      __sys_sendmsg+0xcd/0x170
[ 4444.461339][   T73]      do_syscall_64+0xc6/0x1e0
[ 4444.461339][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4444.461339][   T73] 
[ 4444.462895][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4444.462895][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4444.462895][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4444.462895][   T73]      ipv6_find_idev+0x102/0x170
[ 4444.462895][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4444.462895][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4444.462895][   T73]      netlink_rcv_skb+0x130/0x360
[ 4444.462895][   T73]      netlink_unicast+0x449/0x710
[ 4444.462895][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4444.462895][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4444.462895][   T73]      ___sys_sendmsg+0xee/0x170
[ 4444.462895][   T73]      __sys_sendmsg+0xcd/0x170
[ 4444.462895][   T73]      do_syscall_64+0xc6/0x1e0
[ 4444.462895][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4444.462895][   T73] 
[ 4444.464610][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4444.464891][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4444.464891][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4444.464891][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4444.464891][   T73]      fib6_nh_init+0xa22/0x1580
[ 4444.464891][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4444.464891][   T73]      ip6_route_add+0x1c/0x140
[ 4444.464891][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4444.464891][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4444.464891][   T73]      netlink_rcv_skb+0x130/0x360
[ 4444.464891][   T73]      netlink_unicast+0x449/0x710
[ 4444.464891][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4444.464891][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4444.464891][   T73]      ___sys_sendmsg+0xee/0x170
[ 4444.464891][   T73]      __sys_sendmsg+0xcd/0x170
[ 4444.464891][   T73]      do_syscall_64+0xc6/0x1e0
[ 4444.464891][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4444.464891][   T73] 
[ 4444.466971][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4444.466971][   T73]      dst_init+0x84/0x4a0
[ 4444.466971][   T73]      dst_alloc+0x97/0x150
[ 4444.466971][   T73]      ip6_dst_alloc+0x23/0x90
[ 4444.466971][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4444.466971][   T73]      ip6_pol_route+0x56f/0x840
[ 4444.466971][   T73]      fib6_rule_lookup+0x456/0x630
[ 4444.466971][   T73]      ip6_route_input+0x59c/0xa50
[ 4444.466971][   T73]      ipv6_rcv+0x397/0x810
[ 4444.466971][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4444.466971][   T73]      process_backlog+0x101/0x620
[ 4444.466971][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4444.466971][   T73]      net_rx_action+0x495/0xbe0
[ 4444.466971][   T73]      __do_softirq+0x1b5/0x7f6
[ 4444.466971][   T73] 
[ 4444.468868][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4444.468868][   T73]      netdev_get_by_index+0x5e/0x80
[ 4444.468868][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4444.468868][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4444.468868][   T73]      ip6_route_add+0x1c/0x140
[ 4444.468868][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4444.468868][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4444.468868][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4444.468868][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4444.468868][   T73]      netlink_rcv_skb+0x130/0x360
[ 4444.468868][   T73]      netlink_unicast+0x449/0x710
[ 4444.468868][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4444.468868][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4444.468868][   T73]      ___sys_sendmsg+0xee/0x170
[ 4444.468868][   T73]      __sys_sendmsg+0xcd/0x170
[ 4444.468868][   T73]      do_syscall_64+0xc6/0x1e0
[ 4444.468868][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4444.468868][   T73] 
[ 4444.471119][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4444.471119][   T73]      netdev_get_by_index+0x5e/0x80
[ 4444.471119][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4444.471119][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4444.471119][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4444.471119][   T73]      ipv6_add_addr+0x411/0x2000
[ 4444.471119][   T73]      inet6_addr_add+0x30e/0xa40
[ 4444.471119][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4444.471119][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4444.471119][   T73]      netlink_rcv_skb+0x130/0x360
[ 4444.471119][   T73]      netlink_unicast+0x449/0x710
[ 4444.471119][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4444.471119][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4444.471119][   T73]      ___sys_sendmsg+0xee/0x170
[ 4444.471119][   T73]      __sys_sendmsg+0xcd/0x170
[ 4444.471119][   T73]      do_syscall_64+0xc6/0x1e0
[ 4444.471119][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4444.471119][   T73] 
[ 4444.473294][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4444.473294][   T73]      netdev_get_by_index+0x5e/0x80
[ 4444.473294][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4444.473294][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4444.473294][   T73]      ip6_route_add+0x1c/0x140
[ 4444.473294][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4444.473294][   T73]      addrconf_add_dev+0xe2/0x170
[ 4444.473294][   T73]      inet6_addr_add+0x12f/0xa40
[ 4444.473294][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4444.473294][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4444.473294][   T73]      netlink_rcv_skb+0x130/0x360
[ 4444.473294][   T73]      netlink_unicast+0x449/0x710
[ 4444.473294][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4444.473294][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4444.473294][   T73]      ___sys_sendmsg+0xee/0x170
[ 4444.473294][   T73]      __sys_sendmsg+0xcd/0x170
[ 4444.473294][   T73]      do_syscall_64+0xc6/0x1e0
[ 4444.473294][   T73] 
[ 4444.475507][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4444.475507][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4444.475507][   T73]      ipv6_find_idev+0x102/0x170
[ 4444.475507][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4444.475507][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4444.475507][   T73]      netlink_rcv_skb+0x130/0x360
[ 4444.475507][   T73]      netlink_unicast+0x449/0x710
[ 4444.475507][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4444.475507][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4444.475507][   T73]      ___sys_sendmsg+0xee/0x170
[ 4444.475507][   T73]      __sys_sendmsg+0xcd/0x170
[ 4444.475507][   T73]      do_syscall_64+0xc6/0x1e0
[ 4444.475507][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4444.475507][   T73] 
[ 4444.477288][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4444.477288][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4444.477288][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4444.477288][   T73]      ipv6_find_idev+0x102/0x170
[ 4444.477288][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4444.477288][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4444.477288][   T73]      netlink_rcv_skb+0x130/0x360
[ 4444.477288][   T73]      netlink_unicast+0x449/0x710
[ 4444.477288][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4444.477288][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4444.477288][   T73]      ___sys_sendmsg+0xee/0x170
[ 4444.477288][   T73]      __sys_sendmsg+0xcd/0x170
[ 4444.477288][   T73]      do_syscall_64+0xc6/0x1e0
[ 4444.477288][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4444.477288][   T73] 
[ 4444.479164][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4444.479511][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4444.479511][   T73]      netdev_get_by_index+0x5e/0x80
[ 4444.479511][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4444.479511][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4444.479511][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4444.479511][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4444.479511][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4444.479511][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4444.479511][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4444.479511][   T73]      addrconf_dad_begin+0x310/0x670
[ 4444.479511][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4444.479511][   T73]      process_one_work+0x84d/0x18a0
[ 4444.479511][   T73]      worker_thread+0x587/0xd30
[ 4444.479511][   T73]      kthread+0x28a/0x350
[ 4444.479511][   T73]      ret_from_fork+0x31/0x70
[ 4444.479511][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4444.479511][   T73] 
[ 4444.481535][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4444.481535][   T73]      netdev_get_by_index+0x5e/0x80
[ 4444.481535][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4444.481535][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4444.481535][   T73]      ip6_route_add+0x1c/0x140
[ 4444.481535][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4444.481535][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4444.481535][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4444.481535][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4444.481535][   T73]      netlink_rcv_skb+0x130/0x360
[ 4444.481535][   T73]      netlink_unicast+0x449/0x710
[ 4444.481535][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4444.481535][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4444.481535][   T73]      ___sys_sendmsg+0xee/0x170
[ 4444.481535][   T73]      __sys_sendmsg+0xcd/0x170
[ 4444.481535][   T73]      do_syscall_64+0xc6/0x1e0
[ 4444.481535][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4444.481535][   T73] 
[ 4444.483772][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4444.483772][   T73]      netdev_get_by_index+0x5e/0x80
[ 4444.483772][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4444.483772][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4444.483772][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4444.483772][   T73]      ipv6_add_addr+0x411/0x2000
[ 4444.483772][   T73]      inet6_addr_add+0x30e/0xa40
[ 4444.483772][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4444.483772][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4444.483772][   T73]      netlink_rcv_skb+0x130/0x360
[ 4444.483772][   T73]      netlink_unicast+0x449/0x710
[ 4444.483772][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4444.483772][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4444.483772][   T73]      ___sys_sendmsg+0xee/0x170
[ 4444.483772][   T73]      __sys_sendmsg+0xcd/0x170
[ 4444.483772][   T73]      do_syscall_64+0xc6/0x1e0
[ 4444.483772][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4444.483772][   T73] 
[ 4444.486050][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4444.486050][   T73]      netdev_get_by_index+0x5e/0x80
[ 4444.486050][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4444.486050][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4444.486050][   T73]      ip6_route_add+0x1c/0x140
[ 4444.486050][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4444.486050][   T73]      addrconf_add_dev+0xe2/0x170
[ 4444.486050][   T73]      inet6_addr_add+0x12f/0xa40
[ 4444.486050][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4444.486050][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4444.486050][   T73]      netlink_rcv_skb+0x130/0x360
[ 4444.486050][   T73]      netlink_unicast+0x449/0x710
[ 4444.486050][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4444.486050][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4444.486050][   T73]      ___sys_sendmsg+0xee/0x170
[ 4444.486050][   T73]      __sys_sendmsg+0xcd/0x170
[ 4444.486050][   T73]      do_syscall_64+0xc6/0x1e0
[ 4444.486050][   T73] 
[ 4444.488332][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4444.488332][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4444.488332][   T73]      ipv6_find_idev+0x102/0x170
[ 4444.488332][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4444.488332][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4444.488332][   T73]      netlink_rcv_skb+0x130/0x360
[ 4444.488332][   T73]      netlink_unicast+0x449/0x710
[ 4444.488332][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4444.488332][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4444.488332][   T73]      ___sys_sendmsg+0xee/0x170
[ 4444.488332][   T73]      __sys_sendmsg+0xcd/0x170
[ 4444.488332][   T73]      do_syscall_64+0xc6/0x1e0
[ 4444.488332][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4444.488332][   T73] 
[ 4444.490068][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4444.490068][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4444.490068][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4444.490068][   T73]      ipv6_find_idev+0x102/0x170
[ 4444.490068][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4444.490068][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4444.490068][   T73]      netlink_rcv_skb+0x130/0x360
[ 4444.490068][   T73]      netlink_unicast+0x449/0x710
[ 4444.490068][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4444.490068][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4444.490068][   T73]      ___sys_sendmsg+0xee/0x170
[ 4444.490068][   T73]      __sys_sendmsg+0xcd/0x170
[ 4444.490068][   T73]      do_syscall_64+0xc6/0x1e0
[ 4444.490068][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4444.490068][   T73] 
[ 4454.815835][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4454.816314][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4454.816314][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4454.816314][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4454.816314][   T73]      fib6_nh_init+0xa22/0x1580
[ 4454.816314][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4454.816314][   T73]      ip6_route_add+0x1c/0x140
[ 4454.816314][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4454.816314][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4454.816314][   T73]      netlink_rcv_skb+0x130/0x360
[ 4454.816314][   T73]      netlink_unicast+0x449/0x710
[ 4454.816314][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4454.816314][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4454.816314][   T73]      ___sys_sendmsg+0xee/0x170
[ 4454.816314][   T73]      __sys_sendmsg+0xcd/0x170
[ 4454.816314][   T73]      do_syscall_64+0xc6/0x1e0
[ 4454.816314][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4454.816314][   T73] 
[ 4454.818253][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4454.818253][   T73]      dst_init+0x84/0x4a0
[ 4454.818253][   T73]      dst_alloc+0x97/0x150
[ 4454.818253][   T73]      ip6_dst_alloc+0x23/0x90
[ 4454.818253][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4454.818253][   T73]      ip6_pol_route+0x56f/0x840
[ 4454.818253][   T73]      fib6_rule_lookup+0x456/0x630
[ 4454.818253][   T73]      ip6_route_input+0x59c/0xa50
[ 4454.818253][   T73]      ipv6_rcv+0x397/0x810
[ 4454.818253][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4454.818253][   T73]      process_backlog+0x101/0x620
[ 4454.818253][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4454.818253][   T73]      net_rx_action+0x495/0xbe0
[ 4454.818253][   T73]      __do_softirq+0x1b5/0x7f6
[ 4454.818253][   T73] 
[ 4454.819926][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4454.819926][   T73]      netdev_get_by_index+0x5e/0x80
[ 4454.819926][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4454.819926][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4454.819926][   T73]      ip6_route_add+0x1c/0x140
[ 4454.819926][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4454.819926][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4454.819926][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4454.819926][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4454.819926][   T73]      netlink_rcv_skb+0x130/0x360
[ 4454.819926][   T73]      netlink_unicast+0x449/0x710
[ 4454.819926][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4454.819926][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4454.819926][   T73]      ___sys_sendmsg+0xee/0x170
[ 4454.819926][   T73]      __sys_sendmsg+0xcd/0x170
[ 4454.819926][   T73]      do_syscall_64+0xc6/0x1e0
[ 4454.819926][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4454.819926][   T73] 
[ 4454.821939][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4454.821939][   T73]      netdev_get_by_index+0x5e/0x80
[ 4454.821939][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4454.821939][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4454.821939][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4454.821939][   T73]      ipv6_add_addr+0x411/0x2000
[ 4454.821939][   T73]      inet6_addr_add+0x30e/0xa40
[ 4454.821939][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4454.821939][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4454.821939][   T73]      netlink_rcv_skb+0x130/0x360
[ 4454.821939][   T73]      netlink_unicast+0x449/0x710
[ 4454.821939][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4454.821939][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4454.821939][   T73]      ___sys_sendmsg+0xee/0x170
[ 4454.821939][   T73]      __sys_sendmsg+0xcd/0x170
[ 4454.821939][   T73]      do_syscall_64+0xc6/0x1e0
[ 4454.821939][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4454.821939][   T73] 
[ 4454.823964][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4454.823964][   T73]      netdev_get_by_index+0x5e/0x80
[ 4454.823964][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4454.823964][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4454.823964][   T73]      ip6_route_add+0x1c/0x140
[ 4454.823964][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4454.823964][   T73]      addrconf_add_dev+0xe2/0x170
[ 4454.823964][   T73]      inet6_addr_add+0x12f/0xa40
[ 4454.823964][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4454.823964][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4454.823964][   T73]      netlink_rcv_skb+0x130/0x360
[ 4454.823964][   T73]      netlink_unicast+0x449/0x710
[ 4454.823964][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4454.823964][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4454.823964][   T73]      ___sys_sendmsg+0xee/0x170
[ 4454.823964][   T73]      __sys_sendmsg+0xcd/0x170
[ 4454.823964][   T73]      do_syscall_64+0xc6/0x1e0
[ 4454.823964][   T73] 
[ 4454.825941][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4454.825941][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4454.825941][   T73]      ipv6_find_idev+0x102/0x170
[ 4454.825941][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4454.825941][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4454.825941][   T73]      netlink_rcv_skb+0x130/0x360
[ 4454.825941][   T73]      netlink_unicast+0x449/0x710
[ 4454.825941][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4454.825941][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4454.825941][   T73]      ___sys_sendmsg+0xee/0x170
[ 4454.825941][   T73]      __sys_sendmsg+0xcd/0x170
[ 4454.825941][   T73]      do_syscall_64+0xc6/0x1e0
[ 4454.825941][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4454.825941][   T73] 
[ 4454.827502][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4454.827502][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4454.827502][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4454.827502][   T73]      ipv6_find_idev+0x102/0x170
[ 4454.827502][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4454.827502][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4454.827502][   T73]      netlink_rcv_skb+0x130/0x360
[ 4454.827502][   T73]      netlink_unicast+0x449/0x710
[ 4454.827502][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4454.827502][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4454.827502][   T73]      ___sys_sendmsg+0xee/0x170
[ 4454.827502][   T73]      __sys_sendmsg+0xcd/0x170
[ 4454.827502][   T73]      do_syscall_64+0xc6/0x1e0
[ 4454.827502][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4454.827502][   T73] 
[ 4454.829222][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4454.829534][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4454.829534][   T73]      netdev_get_by_index+0x5e/0x80
[ 4454.829534][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4454.829534][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4454.829534][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4454.829534][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4454.829534][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4454.829534][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4454.829534][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4454.829534][   T73]      addrconf_dad_begin+0x310/0x670
[ 4454.829534][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4454.829534][   T73]      process_one_work+0x84d/0x18a0
[ 4454.829534][   T73]      worker_thread+0x587/0xd30
[ 4454.829534][   T73]      kthread+0x28a/0x350
[ 4454.829534][   T73]      ret_from_fork+0x31/0x70
[ 4454.829534][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4454.829534][   T73] 
[ 4454.831447][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4454.831447][   T73]      netdev_get_by_index+0x5e/0x80
[ 4454.831447][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4454.831447][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4454.831447][   T73]      ip6_route_add+0x1c/0x140
[ 4454.831447][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4454.831447][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4454.831447][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4454.831447][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4454.831447][   T73]      netlink_rcv_skb+0x130/0x360
[ 4454.831447][   T73]      netlink_unicast+0x449/0x710
[ 4454.831447][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4454.831447][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4454.831447][   T73]      ___sys_sendmsg+0xee/0x170
[ 4454.831447][   T73]      __sys_sendmsg+0xcd/0x170
[ 4454.831447][   T73]      do_syscall_64+0xc6/0x1e0
[ 4454.831447][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4454.831447][   T73] 
[ 4454.833442][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4454.833442][   T73]      netdev_get_by_index+0x5e/0x80
[ 4454.833442][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4454.833442][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4454.833442][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4454.833442][   T73]      ipv6_add_addr+0x411/0x2000
[ 4454.833442][   T73]      inet6_addr_add+0x30e/0xa40
[ 4454.833442][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4454.833442][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4454.833442][   T73]      netlink_rcv_skb+0x130/0x360
[ 4454.833442][   T73]      netlink_unicast+0x449/0x710
[ 4454.833442][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4454.833442][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4454.833442][   T73]      ___sys_sendmsg+0xee/0x170
[ 4454.833442][   T73]      __sys_sendmsg+0xcd/0x170
[ 4454.833442][   T73]      do_syscall_64+0xc6/0x1e0
[ 4454.833442][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4454.833442][   T73] 
[ 4454.835442][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4454.835442][   T73]      netdev_get_by_index+0x5e/0x80
[ 4454.835442][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4454.835442][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4454.835442][   T73]      ip6_route_add+0x1c/0x140
[ 4454.835442][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4454.835442][   T73]      addrconf_add_dev+0xe2/0x170
[ 4454.835442][   T73]      inet6_addr_add+0x12f/0xa40
[ 4454.835442][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4454.835442][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4454.835442][   T73]      netlink_rcv_skb+0x130/0x360
[ 4454.835442][   T73]      netlink_unicast+0x449/0x710
[ 4454.835442][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4454.835442][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4454.835442][   T73]      ___sys_sendmsg+0xee/0x170
[ 4454.835442][   T73]      __sys_sendmsg+0xcd/0x170
[ 4454.835442][   T73]      do_syscall_64+0xc6/0x1e0
[ 4454.835442][   T73] 
[ 4454.837404][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4454.837404][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4454.837404][   T73]      ipv6_find_idev+0x102/0x170
[ 4454.837404][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4454.837404][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4454.837404][   T73]      netlink_rcv_skb+0x130/0x360
[ 4454.837404][   T73]      netlink_unicast+0x449/0x710
[ 4454.837404][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4454.837404][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4454.837404][   T73]      ___sys_sendmsg+0xee/0x170
[ 4454.837404][   T73]      __sys_sendmsg+0xcd/0x170
[ 4454.837404][   T73]      do_syscall_64+0xc6/0x1e0
[ 4454.837404][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4454.837404][   T73] 
[ 4454.838945][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4454.838945][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4454.838945][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4454.838945][   T73]      ipv6_find_idev+0x102/0x170
[ 4454.838945][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4454.838945][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4454.838945][   T73]      netlink_rcv_skb+0x130/0x360
[ 4454.838945][   T73]      netlink_unicast+0x449/0x710
[ 4454.838945][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4454.838945][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4454.838945][   T73]      ___sys_sendmsg+0xee/0x170
[ 4454.838945][   T73]      __sys_sendmsg+0xcd/0x170
[ 4454.838945][   T73]      do_syscall_64+0xc6/0x1e0
[ 4454.838945][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4454.838945][   T73] 
[ 4454.840652][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4454.840931][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4454.840931][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4454.840931][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4454.840931][   T73]      fib6_nh_init+0xa22/0x1580
[ 4454.840931][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4454.840931][   T73]      ip6_route_add+0x1c/0x140
[ 4454.840931][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4454.840931][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4454.840931][   T73]      netlink_rcv_skb+0x130/0x360
[ 4454.840931][   T73]      netlink_unicast+0x449/0x710
[ 4454.840931][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4454.840931][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4454.840931][   T73]      ___sys_sendmsg+0xee/0x170
[ 4454.840931][   T73]      __sys_sendmsg+0xcd/0x170
[ 4454.840931][   T73]      do_syscall_64+0xc6/0x1e0
[ 4454.840931][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4454.840931][   T73] 
[ 4454.843004][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4454.843004][   T73]      dst_init+0x84/0x4a0
[ 4454.843004][   T73]      dst_alloc+0x97/0x150
[ 4454.843004][   T73]      ip6_dst_alloc+0x23/0x90
[ 4454.843004][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4454.843004][   T73]      ip6_pol_route+0x56f/0x840
[ 4454.843004][   T73]      fib6_rule_lookup+0x456/0x630
[ 4454.843004][   T73]      ip6_route_input+0x59c/0xa50
[ 4454.843004][   T73]      ipv6_rcv+0x397/0x810
[ 4454.843004][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4454.843004][   T73]      process_backlog+0x101/0x620
[ 4454.843004][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4454.843004][   T73]      net_rx_action+0x495/0xbe0
[ 4454.843004][   T73]      __do_softirq+0x1b5/0x7f6
[ 4454.843004][   T73] 
[ 4454.844836][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4454.844836][   T73]      netdev_get_by_index+0x5e/0x80
[ 4454.844836][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4454.844836][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4454.844836][   T73]      ip6_route_add+0x1c/0x140
[ 4454.844836][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4454.844836][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4454.844836][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4454.844836][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4454.844836][   T73]      netlink_rcv_skb+0x130/0x360
[ 4454.844836][   T73]      netlink_unicast+0x449/0x710
[ 4454.844836][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4454.844836][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4454.844836][   T73]      ___sys_sendmsg+0xee/0x170
[ 4454.844836][   T73]      __sys_sendmsg+0xcd/0x170
[ 4454.844836][   T73]      do_syscall_64+0xc6/0x1e0
[ 4454.844836][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4454.844836][   T73] 
[ 4454.847090][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4454.847090][   T73]      netdev_get_by_index+0x5e/0x80
[ 4454.847090][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4454.847090][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4454.847090][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4454.847090][   T73]      ipv6_add_addr+0x411/0x2000
[ 4454.847090][   T73]      inet6_addr_add+0x30e/0xa40
[ 4454.847090][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4454.847090][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4454.847090][   T73]      netlink_rcv_skb+0x130/0x360
[ 4454.847090][   T73]      netlink_unicast+0x449/0x710
[ 4454.847090][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4454.847090][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4454.847090][   T73]      ___sys_sendmsg+0xee/0x170
[ 4454.847090][   T73]      __sys_sendmsg+0xcd/0x170
[ 4454.847090][   T73]      do_syscall_64+0xc6/0x1e0
[ 4454.847090][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4454.847090][   T73] 
[ 4454.849356][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4454.849356][   T73]      netdev_get_by_index+0x5e/0x80
[ 4454.849356][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4454.849356][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4454.849356][   T73]      ip6_route_add+0x1c/0x140
[ 4454.849356][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4454.849356][   T73]      addrconf_add_dev+0xe2/0x170
[ 4454.849356][   T73]      inet6_addr_add+0x12f/0xa40
[ 4454.849356][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4454.849356][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4454.849356][   T73]      netlink_rcv_skb+0x130/0x360
[ 4454.849356][   T73]      netlink_unicast+0x449/0x710
[ 4454.849356][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4454.849356][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4454.849356][   T73]      ___sys_sendmsg+0xee/0x170
[ 4454.849356][   T73]      __sys_sendmsg+0xcd/0x170
[ 4454.849356][   T73]      do_syscall_64+0xc6/0x1e0
[ 4454.849356][   T73] 
[ 4454.851577][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4454.851577][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4454.851577][   T73]      ipv6_find_idev+0x102/0x170
[ 4454.851577][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4454.851577][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4454.851577][   T73]      netlink_rcv_skb+0x130/0x360
[ 4454.851577][   T73]      netlink_unicast+0x449/0x710
[ 4454.851577][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4454.851577][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4454.851577][   T73]      ___sys_sendmsg+0xee/0x170
[ 4454.851577][   T73]      __sys_sendmsg+0xcd/0x170
[ 4454.851577][   T73]      do_syscall_64+0xc6/0x1e0
[ 4454.851577][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4454.851577][   T73] 
[ 4454.853310][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4454.853310][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4454.853310][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4454.853310][   T73]      ipv6_find_idev+0x102/0x170
[ 4454.853310][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4454.853310][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4454.853310][   T73]      netlink_rcv_skb+0x130/0x360
[ 4454.853310][   T73]      netlink_unicast+0x449/0x710
[ 4454.853310][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4454.853310][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4454.853310][   T73]      ___sys_sendmsg+0xee/0x170
[ 4454.853310][   T73]      __sys_sendmsg+0xcd/0x170
[ 4454.853310][   T73]      do_syscall_64+0xc6/0x1e0
[ 4454.853310][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4454.853310][   T73] 
[ 4454.855214][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4454.855553][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4454.855553][   T73]      netdev_get_by_index+0x5e/0x80
[ 4454.855553][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4454.855553][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4454.855553][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4454.855553][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4454.855553][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4454.855553][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4454.855553][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4454.855553][   T73]      addrconf_dad_begin+0x310/0x670
[ 4454.855553][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4454.855553][   T73]      process_one_work+0x84d/0x18a0
[ 4454.855553][   T73]      worker_thread+0x587/0xd30
[ 4454.855553][   T73]      kthread+0x28a/0x350
[ 4454.855553][   T73]      ret_from_fork+0x31/0x70
[ 4454.855553][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4454.855553][   T73] 
[ 4454.857630][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4454.857630][   T73]      netdev_get_by_index+0x5e/0x80
[ 4454.857630][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4454.857630][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4454.857630][   T73]      ip6_route_add+0x1c/0x140
[ 4454.857630][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4454.857630][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4454.857630][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4454.857630][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4454.857630][   T73]      netlink_rcv_skb+0x130/0x360
[ 4454.857630][   T73]      netlink_unicast+0x449/0x710
[ 4454.857630][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4454.857630][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4454.857630][   T73]      ___sys_sendmsg+0xee/0x170
[ 4454.857630][   T73]      __sys_sendmsg+0xcd/0x170
[ 4454.857630][   T73]      do_syscall_64+0xc6/0x1e0
[ 4454.857630][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4454.857630][   T73] 
[ 4454.859952][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4454.859952][   T73]      netdev_get_by_index+0x5e/0x80
[ 4454.859952][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4454.859952][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4454.859952][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4454.859952][   T73]      ipv6_add_addr+0x411/0x2000
[ 4454.859952][   T73]      inet6_addr_add+0x30e/0xa40
[ 4454.859952][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4454.859952][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4454.859952][   T73]      netlink_rcv_skb+0x130/0x360
[ 4454.859952][   T73]      netlink_unicast+0x449/0x710
[ 4454.859952][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4454.859952][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4454.859952][   T73]      ___sys_sendmsg+0xee/0x170
[ 4454.859952][   T73]      __sys_sendmsg+0xcd/0x170
[ 4454.859952][   T73]      do_syscall_64+0xc6/0x1e0
[ 4454.859952][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4454.859952][   T73] 
[ 4454.862205][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4454.862205][   T73]      netdev_get_by_index+0x5e/0x80
[ 4454.862205][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4454.862205][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4454.862205][   T73]      ip6_route_add+0x1c/0x140
[ 4454.862205][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4454.862205][   T73]      addrconf_add_dev+0xe2/0x170
[ 4454.862205][   T73]      inet6_addr_add+0x12f/0xa40
[ 4454.862205][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4454.862205][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4454.862205][   T73]      netlink_rcv_skb+0x130/0x360
[ 4454.862205][   T73]      netlink_unicast+0x449/0x710
[ 4454.862205][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4454.862205][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4454.862205][   T73]      ___sys_sendmsg+0xee/0x170
[ 4454.862205][   T73]      __sys_sendmsg+0xcd/0x170
[ 4454.862205][   T73]      do_syscall_64+0xc6/0x1e0
[ 4454.862205][   T73] 
[ 4454.864434][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4454.864434][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4454.864434][   T73]      ipv6_find_idev+0x102/0x170
[ 4454.864434][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4454.864434][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4454.864434][   T73]      netlink_rcv_skb+0x130/0x360
[ 4454.864434][   T73]      netlink_unicast+0x449/0x710
[ 4454.864434][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4454.864434][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4454.864434][   T73]      ___sys_sendmsg+0xee/0x170
[ 4454.864434][   T73]      __sys_sendmsg+0xcd/0x170
[ 4454.864434][   T73]      do_syscall_64+0xc6/0x1e0
[ 4454.864434][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4454.864434][   T73] 
[ 4454.866164][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4454.866164][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4454.866164][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4454.866164][   T73]      ipv6_find_idev+0x102/0x170
[ 4454.866164][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4454.866164][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4454.866164][   T73]      netlink_rcv_skb+0x130/0x360
[ 4454.866164][   T73]      netlink_unicast+0x449/0x710
[ 4454.866164][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4454.866164][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4454.866164][   T73]      ___sys_sendmsg+0xee/0x170
[ 4454.866164][   T73]      __sys_sendmsg+0xcd/0x170
[ 4454.866164][   T73]      do_syscall_64+0xc6/0x1e0
[ 4454.866164][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4454.866164][   T73] 
[ 4465.103731][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4465.104166][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4465.104166][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4465.104166][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4465.104166][   T73]      fib6_nh_init+0xa22/0x1580
[ 4465.104166][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4465.104166][   T73]      ip6_route_add+0x1c/0x140
[ 4465.104166][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4465.104166][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4465.104166][   T73]      netlink_rcv_skb+0x130/0x360
[ 4465.104166][   T73]      netlink_unicast+0x449/0x710
[ 4465.104166][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4465.104166][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4465.104166][   T73]      ___sys_sendmsg+0xee/0x170
[ 4465.104166][   T73]      __sys_sendmsg+0xcd/0x170
[ 4465.104166][   T73]      do_syscall_64+0xc6/0x1e0
[ 4465.104166][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4465.104166][   T73] 
[ 4465.106120][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4465.106120][   T73]      dst_init+0x84/0x4a0
[ 4465.106120][   T73]      dst_alloc+0x97/0x150
[ 4465.106120][   T73]      ip6_dst_alloc+0x23/0x90
[ 4465.106120][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4465.106120][   T73]      ip6_pol_route+0x56f/0x840
[ 4465.106120][   T73]      fib6_rule_lookup+0x456/0x630
[ 4465.106120][   T73]      ip6_route_input+0x59c/0xa50
[ 4465.106120][   T73]      ipv6_rcv+0x397/0x810
[ 4465.106120][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4465.106120][   T73]      process_backlog+0x101/0x620
[ 4465.106120][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4465.106120][   T73]      net_rx_action+0x495/0xbe0
[ 4465.106120][   T73]      __do_softirq+0x1b5/0x7f6
[ 4465.106120][   T73] 
[ 4465.107778][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4465.107778][   T73]      netdev_get_by_index+0x5e/0x80
[ 4465.107778][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4465.107778][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4465.107778][   T73]      ip6_route_add+0x1c/0x140
[ 4465.107778][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4465.107778][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4465.107778][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4465.107778][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4465.107778][   T73]      netlink_rcv_skb+0x130/0x360
[ 4465.107778][   T73]      netlink_unicast+0x449/0x710
[ 4465.107778][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4465.107778][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4465.107778][   T73]      ___sys_sendmsg+0xee/0x170
[ 4465.107778][   T73]      __sys_sendmsg+0xcd/0x170
[ 4465.107778][   T73]      do_syscall_64+0xc6/0x1e0
[ 4465.107778][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4465.107778][   T73] 
[ 4465.109838][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4465.109838][   T73]      netdev_get_by_index+0x5e/0x80
[ 4465.109838][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4465.109838][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4465.109838][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4465.109838][   T73]      ipv6_add_addr+0x411/0x2000
[ 4465.109838][   T73]      inet6_addr_add+0x30e/0xa40
[ 4465.109838][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4465.109838][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4465.109838][   T73]      netlink_rcv_skb+0x130/0x360
[ 4465.109838][   T73]      netlink_unicast+0x449/0x710
[ 4465.109838][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4465.109838][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4465.109838][   T73]      ___sys_sendmsg+0xee/0x170
[ 4465.109838][   T73]      __sys_sendmsg+0xcd/0x170
[ 4465.109838][   T73]      do_syscall_64+0xc6/0x1e0
[ 4465.109838][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4465.109838][   T73] 
[ 4465.111860][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4465.111860][   T73]      netdev_get_by_index+0x5e/0x80
[ 4465.111860][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4465.111860][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4465.111860][   T73]      ip6_route_add+0x1c/0x140
[ 4465.111860][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4465.111860][   T73]      addrconf_add_dev+0xe2/0x170
[ 4465.111860][   T73]      inet6_addr_add+0x12f/0xa40
[ 4465.111860][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4465.111860][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4465.111860][   T73]      netlink_rcv_skb+0x130/0x360
[ 4465.111860][   T73]      netlink_unicast+0x449/0x710
[ 4465.111860][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4465.111860][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4465.111860][   T73]      ___sys_sendmsg+0xee/0x170
[ 4465.111860][   T73]      __sys_sendmsg+0xcd/0x170
[ 4465.111860][   T73]      do_syscall_64+0xc6/0x1e0
[ 4465.111860][   T73] 
[ 4465.113867][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4465.113867][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4465.113867][   T73]      ipv6_find_idev+0x102/0x170
[ 4465.113867][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4465.113867][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4465.113867][   T73]      netlink_rcv_skb+0x130/0x360
[ 4465.113867][   T73]      netlink_unicast+0x449/0x710
[ 4465.113867][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4465.113867][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4465.113867][   T73]      ___sys_sendmsg+0xee/0x170
[ 4465.113867][   T73]      __sys_sendmsg+0xcd/0x170
[ 4465.113867][   T73]      do_syscall_64+0xc6/0x1e0
[ 4465.113867][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4465.113867][   T73] 
[ 4465.115429][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4465.115429][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4465.115429][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4465.115429][   T73]      ipv6_find_idev+0x102/0x170
[ 4465.115429][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4465.115429][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4465.115429][   T73]      netlink_rcv_skb+0x130/0x360
[ 4465.115429][   T73]      netlink_unicast+0x449/0x710
[ 4465.115429][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4465.115429][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4465.115429][   T73]      ___sys_sendmsg+0xee/0x170
[ 4465.115429][   T73]      __sys_sendmsg+0xcd/0x170
[ 4465.115429][   T73]      do_syscall_64+0xc6/0x1e0
[ 4465.115429][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4465.115429][   T73] 
[ 4465.117157][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4465.117438][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4465.117438][   T73]      netdev_get_by_index+0x5e/0x80
[ 4465.117438][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4465.117438][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4465.117438][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4465.117438][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4465.117438][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4465.117438][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4465.117438][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4465.117438][   T73]      addrconf_dad_begin+0x310/0x670
[ 4465.117438][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4465.117438][   T73]      process_one_work+0x84d/0x18a0
[ 4465.117438][   T73]      worker_thread+0x587/0xd30
[ 4465.117438][   T73]      kthread+0x28a/0x350
[ 4465.117438][   T73]      ret_from_fork+0x31/0x70
[ 4465.117438][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4465.117438][   T73] 
[ 4465.119386][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4465.119386][   T73]      netdev_get_by_index+0x5e/0x80
[ 4465.119386][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4465.119386][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4465.119386][   T73]      ip6_route_add+0x1c/0x140
[ 4465.119386][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4465.119386][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4465.119386][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4465.119386][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4465.119386][   T73]      netlink_rcv_skb+0x130/0x360
[ 4465.119386][   T73]      netlink_unicast+0x449/0x710
[ 4465.119386][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4465.119386][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4465.119386][   T73]      ___sys_sendmsg+0xee/0x170
[ 4465.119386][   T73]      __sys_sendmsg+0xcd/0x170
[ 4465.119386][   T73]      do_syscall_64+0xc6/0x1e0
[ 4465.119386][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4465.119386][   T73] 
[ 4465.121398][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4465.121398][   T73]      netdev_get_by_index+0x5e/0x80
[ 4465.121398][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4465.121398][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4465.121398][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4465.121398][   T73]      ipv6_add_addr+0x411/0x2000
[ 4465.121398][   T73]      inet6_addr_add+0x30e/0xa40
[ 4465.121398][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4465.121398][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4465.121398][   T73]      netlink_rcv_skb+0x130/0x360
[ 4465.121398][   T73]      netlink_unicast+0x449/0x710
[ 4465.121398][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4465.121398][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4465.121398][   T73]      ___sys_sendmsg+0xee/0x170
[ 4465.121398][   T73]      __sys_sendmsg+0xcd/0x170
[ 4465.121398][   T73]      do_syscall_64+0xc6/0x1e0
[ 4465.121398][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4465.121398][   T73] 
[ 4465.123398][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4465.123398][   T73]      netdev_get_by_index+0x5e/0x80
[ 4465.123398][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4465.123398][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4465.123398][   T73]      ip6_route_add+0x1c/0x140
[ 4465.123398][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4465.123398][   T73]      addrconf_add_dev+0xe2/0x170
[ 4465.123398][   T73]      inet6_addr_add+0x12f/0xa40
[ 4465.123398][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4465.123398][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4465.123398][   T73]      netlink_rcv_skb+0x130/0x360
[ 4465.123398][   T73]      netlink_unicast+0x449/0x710
[ 4465.123398][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4465.123398][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4465.123398][   T73]      ___sys_sendmsg+0xee/0x170
[ 4465.123398][   T73]      __sys_sendmsg+0xcd/0x170
[ 4465.123398][   T73]      do_syscall_64+0xc6/0x1e0
[ 4465.123398][   T73] 
[ 4465.125374][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4465.125374][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4465.125374][   T73]      ipv6_find_idev+0x102/0x170
[ 4465.125374][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4465.125374][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4465.125374][   T73]      netlink_rcv_skb+0x130/0x360
[ 4465.125374][   T73]      netlink_unicast+0x449/0x710
[ 4465.125374][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4465.125374][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4465.125374][   T73]      ___sys_sendmsg+0xee/0x170
[ 4465.125374][   T73]      __sys_sendmsg+0xcd/0x170
[ 4465.125374][   T73]      do_syscall_64+0xc6/0x1e0
[ 4465.125374][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4465.125374][   T73] 
[ 4465.126915][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4465.126915][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4465.126915][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4465.126915][   T73]      ipv6_find_idev+0x102/0x170
[ 4465.126915][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4465.126915][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4465.126915][   T73]      netlink_rcv_skb+0x130/0x360
[ 4465.126915][   T73]      netlink_unicast+0x449/0x710
[ 4465.126915][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4465.126915][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4465.126915][   T73]      ___sys_sendmsg+0xee/0x170
[ 4465.126915][   T73]      __sys_sendmsg+0xcd/0x170
[ 4465.126915][   T73]      do_syscall_64+0xc6/0x1e0
[ 4465.126915][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4465.126915][   T73] 
[ 4465.128598][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4465.128886][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4465.128886][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4465.128886][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4465.128886][   T73]      fib6_nh_init+0xa22/0x1580
[ 4465.128886][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4465.128886][   T73]      ip6_route_add+0x1c/0x140
[ 4465.128886][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4465.128886][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4465.128886][   T73]      netlink_rcv_skb+0x130/0x360
[ 4465.128886][   T73]      netlink_unicast+0x449/0x710
[ 4465.128886][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4465.128886][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4465.128886][   T73]      ___sys_sendmsg+0xee/0x170
[ 4465.128886][   T73]      __sys_sendmsg+0xcd/0x170
[ 4465.128886][   T73]      do_syscall_64+0xc6/0x1e0
[ 4465.128886][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4465.128886][   T73] 
[ 4465.130951][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4465.130951][   T73]      dst_init+0x84/0x4a0
[ 4465.130951][   T73]      dst_alloc+0x97/0x150
[ 4465.130951][   T73]      ip6_dst_alloc+0x23/0x90
[ 4465.130951][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4465.130951][   T73]      ip6_pol_route+0x56f/0x840
[ 4465.130951][   T73]      fib6_rule_lookup+0x456/0x630
[ 4465.130951][   T73]      ip6_route_input+0x59c/0xa50
[ 4465.130951][   T73]      ipv6_rcv+0x397/0x810
[ 4465.130951][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4465.130951][   T73]      process_backlog+0x101/0x620
[ 4465.130951][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4465.130951][   T73]      net_rx_action+0x495/0xbe0
[ 4465.130951][   T73]      __do_softirq+0x1b5/0x7f6
[ 4465.130951][   T73] 
[ 4465.132828][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4465.132828][   T73]      netdev_get_by_index+0x5e/0x80
[ 4465.132828][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4465.132828][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4465.132828][   T73]      ip6_route_add+0x1c/0x140
[ 4465.132828][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4465.132828][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4465.132828][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4465.132828][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4465.132828][   T73]      netlink_rcv_skb+0x130/0x360
[ 4465.132828][   T73]      netlink_unicast+0x449/0x710
[ 4465.132828][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4465.132828][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4465.132828][   T73]      ___sys_sendmsg+0xee/0x170
[ 4465.132828][   T73]      __sys_sendmsg+0xcd/0x170
[ 4465.132828][   T73]      do_syscall_64+0xc6/0x1e0
[ 4465.132828][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4465.132828][   T73] 
[ 4465.135114][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4465.135114][   T73]      netdev_get_by_index+0x5e/0x80
[ 4465.135114][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4465.135114][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4465.135114][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4465.135114][   T73]      ipv6_add_addr+0x411/0x2000
[ 4465.135114][   T73]      inet6_addr_add+0x30e/0xa40
[ 4465.135114][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4465.135114][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4465.135114][   T73]      netlink_rcv_skb+0x130/0x360
[ 4465.135114][   T73]      netlink_unicast+0x449/0x710
[ 4465.135114][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4465.135114][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4465.135114][   T73]      ___sys_sendmsg+0xee/0x170
[ 4465.135114][   T73]      __sys_sendmsg+0xcd/0x170
[ 4465.135114][   T73]      do_syscall_64+0xc6/0x1e0
[ 4465.135114][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4465.135114][   T73] 
[ 4465.137304][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4465.137304][   T73]      netdev_get_by_index+0x5e/0x80
[ 4465.137304][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4465.137304][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4465.137304][   T73]      ip6_route_add+0x1c/0x140
[ 4465.137304][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4465.137304][   T73]      addrconf_add_dev+0xe2/0x170
[ 4465.137304][   T73]      inet6_addr_add+0x12f/0xa40
[ 4465.137304][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4465.137304][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4465.137304][   T73]      netlink_rcv_skb+0x130/0x360
[ 4465.137304][   T73]      netlink_unicast+0x449/0x710
[ 4465.137304][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4465.137304][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4465.137304][   T73]      ___sys_sendmsg+0xee/0x170
[ 4465.137304][   T73]      __sys_sendmsg+0xcd/0x170
[ 4465.137304][   T73]      do_syscall_64+0xc6/0x1e0
[ 4465.137304][   T73] 
[ 4465.139525][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4465.139525][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4465.139525][   T73]      ipv6_find_idev+0x102/0x170
[ 4465.139525][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4465.139525][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4465.139525][   T73]      netlink_rcv_skb+0x130/0x360
[ 4465.139525][   T73]      netlink_unicast+0x449/0x710
[ 4465.139525][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4465.139525][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4465.139525][   T73]      ___sys_sendmsg+0xee/0x170
[ 4465.139525][   T73]      __sys_sendmsg+0xcd/0x170
[ 4465.139525][   T73]      do_syscall_64+0xc6/0x1e0
[ 4465.139525][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4465.139525][   T73] 
[ 4465.141328][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4465.141328][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4465.141328][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4465.141328][   T73]      ipv6_find_idev+0x102/0x170
[ 4465.141328][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4465.141328][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4465.141328][   T73]      netlink_rcv_skb+0x130/0x360
[ 4465.141328][   T73]      netlink_unicast+0x449/0x710
[ 4465.141328][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4465.141328][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4465.141328][   T73]      ___sys_sendmsg+0xee/0x170
[ 4465.141328][   T73]      __sys_sendmsg+0xcd/0x170
[ 4465.141328][   T73]      do_syscall_64+0xc6/0x1e0
[ 4465.141328][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4465.141328][   T73] 
[ 4465.143209][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4465.143560][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4465.143560][   T73]      netdev_get_by_index+0x5e/0x80
[ 4465.143560][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4465.143560][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4465.143560][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4465.143560][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4465.143560][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4465.143560][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4465.143560][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4465.143560][   T73]      addrconf_dad_begin+0x310/0x670
[ 4465.143560][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4465.143560][   T73]      process_one_work+0x84d/0x18a0
[ 4465.143560][   T73]      worker_thread+0x587/0xd30
[ 4465.143560][   T73]      kthread+0x28a/0x350
[ 4465.143560][   T73]      ret_from_fork+0x31/0x70
[ 4465.143560][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4465.143560][   T73] 
[ 4465.145629][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4465.145629][   T73]      netdev_get_by_index+0x5e/0x80
[ 4465.145629][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4465.145629][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4465.145629][   T73]      ip6_route_add+0x1c/0x140
[ 4465.145629][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4465.145629][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4465.145629][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4465.145629][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4465.145629][   T73]      netlink_rcv_skb+0x130/0x360
[ 4465.145629][   T73]      netlink_unicast+0x449/0x710
[ 4465.145629][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4465.145629][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4465.145629][   T73]      ___sys_sendmsg+0xee/0x170
[ 4465.145629][   T73]      __sys_sendmsg+0xcd/0x170
[ 4465.145629][   T73]      do_syscall_64+0xc6/0x1e0
[ 4465.145629][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4465.145629][   T73] 
[ 4465.147903][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4465.147903][   T73]      netdev_get_by_index+0x5e/0x80
[ 4465.147903][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4465.147903][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4465.147903][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4465.147903][   T73]      ipv6_add_addr+0x411/0x2000
[ 4465.147903][   T73]      inet6_addr_add+0x30e/0xa40
[ 4465.147903][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4465.147903][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4465.147903][   T73]      netlink_rcv_skb+0x130/0x360
[ 4465.147903][   T73]      netlink_unicast+0x449/0x710
[ 4465.147903][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4465.147903][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4465.147903][   T73]      ___sys_sendmsg+0xee/0x170
[ 4465.147903][   T73]      __sys_sendmsg+0xcd/0x170
[ 4465.147903][   T73]      do_syscall_64+0xc6/0x1e0
[ 4465.147903][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4465.147903][   T73] 
[ 4465.150158][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4465.150158][   T73]      netdev_get_by_index+0x5e/0x80
[ 4465.150158][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4465.150158][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4465.150158][   T73]      ip6_route_add+0x1c/0x140
[ 4465.150158][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4465.150158][   T73]      addrconf_add_dev+0xe2/0x170
[ 4465.150158][   T73]      inet6_addr_add+0x12f/0xa40
[ 4465.150158][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4465.150158][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4465.150158][   T73]      netlink_rcv_skb+0x130/0x360
[ 4465.150158][   T73]      netlink_unicast+0x449/0x710
[ 4465.150158][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4465.150158][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4465.150158][   T73]      ___sys_sendmsg+0xee/0x170
[ 4465.150158][   T73]      __sys_sendmsg+0xcd/0x170
[ 4465.150158][   T73]      do_syscall_64+0xc6/0x1e0
[ 4465.150158][   T73] 
[ 4465.152445][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4465.152445][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4465.152445][   T73]      ipv6_find_idev+0x102/0x170
[ 4465.152445][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4465.152445][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4465.152445][   T73]      netlink_rcv_skb+0x130/0x360
[ 4465.152445][   T73]      netlink_unicast+0x449/0x710
[ 4465.152445][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4465.152445][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4465.152445][   T73]      ___sys_sendmsg+0xee/0x170
[ 4465.152445][   T73]      __sys_sendmsg+0xcd/0x170
[ 4465.152445][   T73]      do_syscall_64+0xc6/0x1e0
[ 4465.152445][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4465.152445][   T73] 
[ 4465.154202][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4465.154202][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4465.154202][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4465.154202][   T73]      ipv6_find_idev+0x102/0x170
[ 4465.154202][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4465.154202][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4465.154202][   T73]      netlink_rcv_skb+0x130/0x360
[ 4465.154202][   T73]      netlink_unicast+0x449/0x710
[ 4465.154202][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4465.154202][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4465.154202][   T73]      ___sys_sendmsg+0xee/0x170
[ 4465.154202][   T73]      __sys_sendmsg+0xcd/0x170
[ 4465.154202][   T73]      do_syscall_64+0xc6/0x1e0
[ 4465.154202][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4465.154202][   T73] 
[ 4475.391743][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4475.392333][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4475.392333][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4475.392333][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4475.392333][   T73]      fib6_nh_init+0xa22/0x1580
[ 4475.392333][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4475.392333][   T73]      ip6_route_add+0x1c/0x140
[ 4475.392333][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4475.392333][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4475.392333][   T73]      netlink_rcv_skb+0x130/0x360
[ 4475.392333][   T73]      netlink_unicast+0x449/0x710
[ 4475.392333][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4475.392333][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4475.392333][   T73]      ___sys_sendmsg+0xee/0x170
[ 4475.392333][   T73]      __sys_sendmsg+0xcd/0x170
[ 4475.392333][   T73]      do_syscall_64+0xc6/0x1e0
[ 4475.392333][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4475.392333][   T73] 
[ 4475.395360][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4475.395360][   T73]      dst_init+0x84/0x4a0
[ 4475.395360][   T73]      dst_alloc+0x97/0x150
[ 4475.395360][   T73]      ip6_dst_alloc+0x23/0x90
[ 4475.395360][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4475.395360][   T73]      ip6_pol_route+0x56f/0x840
[ 4475.395360][   T73]      fib6_rule_lookup+0x456/0x630
[ 4475.395360][   T73]      ip6_route_input+0x59c/0xa50
[ 4475.395360][   T73]      ipv6_rcv+0x397/0x810
[ 4475.395360][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4475.395360][   T73]      process_backlog+0x101/0x620
[ 4475.395360][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4475.395360][   T73]      net_rx_action+0x495/0xbe0
[ 4475.395360][   T73]      __do_softirq+0x1b5/0x7f6
[ 4475.395360][   T73] 
[ 4475.397986][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4475.397986][   T73]      netdev_get_by_index+0x5e/0x80
[ 4475.397986][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4475.397986][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4475.397986][   T73]      ip6_route_add+0x1c/0x140
[ 4475.397986][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4475.397986][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4475.397986][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4475.397986][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4475.397986][   T73]      netlink_rcv_skb+0x130/0x360
[ 4475.397986][   T73]      netlink_unicast+0x449/0x710
[ 4475.397986][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4475.397986][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4475.397986][   T73]      ___sys_sendmsg+0xee/0x170
[ 4475.397986][   T73]      __sys_sendmsg+0xcd/0x170
[ 4475.397986][   T73]      do_syscall_64+0xc6/0x1e0
[ 4475.397986][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4475.397986][   T73] 
[ 4475.401091][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4475.401091][   T73]      netdev_get_by_index+0x5e/0x80
[ 4475.401091][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4475.401091][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4475.401091][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4475.401091][   T73]      ipv6_add_addr+0x411/0x2000
[ 4475.401091][   T73]      inet6_addr_add+0x30e/0xa40
[ 4475.401091][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4475.401091][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4475.401091][   T73]      netlink_rcv_skb+0x130/0x360
[ 4475.401091][   T73]      netlink_unicast+0x449/0x710
[ 4475.401091][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4475.401091][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4475.401091][   T73]      ___sys_sendmsg+0xee/0x170
[ 4475.401091][   T73]      __sys_sendmsg+0xcd/0x170
[ 4475.401091][   T73]      do_syscall_64+0xc6/0x1e0
[ 4475.401091][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4475.401091][   T73] 
[ 4475.404119][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4475.404119][   T73]      netdev_get_by_index+0x5e/0x80
[ 4475.404119][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4475.404119][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4475.404119][   T73]      ip6_route_add+0x1c/0x140
[ 4475.404119][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4475.404119][   T73]      addrconf_add_dev+0xe2/0x170
[ 4475.404119][   T73]      inet6_addr_add+0x12f/0xa40
[ 4475.404119][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4475.404119][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4475.404119][   T73]      netlink_rcv_skb+0x130/0x360
[ 4475.404119][   T73]      netlink_unicast+0x449/0x710
[ 4475.404119][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4475.404119][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4475.404119][   T73]      ___sys_sendmsg+0xee/0x170
[ 4475.404119][   T73]      __sys_sendmsg+0xcd/0x170
[ 4475.404119][   T73]      do_syscall_64+0xc6/0x1e0
[ 4475.404119][   T73] 
[ 4475.407292][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4475.407292][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4475.407292][   T73]      ipv6_find_idev+0x102/0x170
[ 4475.407292][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4475.407292][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4475.407292][   T73]      netlink_rcv_skb+0x130/0x360
[ 4475.407292][   T73]      netlink_unicast+0x449/0x710
[ 4475.407292][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4475.407292][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4475.407292][   T73]      ___sys_sendmsg+0xee/0x170
[ 4475.407292][   T73]      __sys_sendmsg+0xcd/0x170
[ 4475.407292][   T73]      do_syscall_64+0xc6/0x1e0
[ 4475.407292][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4475.407292][   T73] 
[ 4475.409737][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4475.409737][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4475.409737][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4475.409737][   T73]      ipv6_find_idev+0x102/0x170
[ 4475.409737][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4475.409737][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4475.409737][   T73]      netlink_rcv_skb+0x130/0x360
[ 4475.409737][   T73]      netlink_unicast+0x449/0x710
[ 4475.409737][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4475.409737][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4475.409737][   T73]      ___sys_sendmsg+0xee/0x170
[ 4475.409737][   T73]      __sys_sendmsg+0xcd/0x170
[ 4475.409737][   T73]      do_syscall_64+0xc6/0x1e0
[ 4475.409737][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4475.409737][   T73] 
[ 4475.412392][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4475.412840][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4475.412840][   T73]      netdev_get_by_index+0x5e/0x80
[ 4475.412840][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4475.412840][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4475.412840][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4475.412840][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4475.412840][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4475.412840][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4475.412840][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4475.412840][   T73]      addrconf_dad_begin+0x310/0x670
[ 4475.412840][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4475.412840][   T73]      process_one_work+0x84d/0x18a0
[ 4475.412840][   T73]      worker_thread+0x587/0xd30
[ 4475.412840][   T73]      kthread+0x28a/0x350
[ 4475.412840][   T73]      ret_from_fork+0x31/0x70
[ 4475.412840][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4475.412840][   T73] 
[ 4475.415858][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4475.415858][   T73]      netdev_get_by_index+0x5e/0x80
[ 4475.415858][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4475.415858][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4475.415858][   T73]      ip6_route_add+0x1c/0x140
[ 4475.415858][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4475.415858][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4475.415858][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4475.415858][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4475.415858][   T73]      netlink_rcv_skb+0x130/0x360
[ 4475.415858][   T73]      netlink_unicast+0x449/0x710
[ 4475.415858][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4475.415858][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4475.415858][   T73]      ___sys_sendmsg+0xee/0x170
[ 4475.415858][   T73]      __sys_sendmsg+0xcd/0x170
[ 4475.415858][   T73]      do_syscall_64+0xc6/0x1e0
[ 4475.415858][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4475.415858][   T73] 
[ 4475.419020][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4475.419020][   T73]      netdev_get_by_index+0x5e/0x80
[ 4475.419020][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4475.419020][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4475.419020][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4475.419020][   T73]      ipv6_add_addr+0x411/0x2000
[ 4475.419020][   T73]      inet6_addr_add+0x30e/0xa40
[ 4475.419020][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4475.419020][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4475.419020][   T73]      netlink_rcv_skb+0x130/0x360
[ 4475.419020][   T73]      netlink_unicast+0x449/0x710
[ 4475.419020][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4475.419020][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4475.419020][   T73]      ___sys_sendmsg+0xee/0x170
[ 4475.419020][   T73]      __sys_sendmsg+0xcd/0x170
[ 4475.419020][   T73]      do_syscall_64+0xc6/0x1e0
[ 4475.419020][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4475.419020][   T73] 
[ 4475.422168][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4475.422168][   T73]      netdev_get_by_index+0x5e/0x80
[ 4475.422168][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4475.422168][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4475.422168][   T73]      ip6_route_add+0x1c/0x140
[ 4475.422168][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4475.422168][   T73]      addrconf_add_dev+0xe2/0x170
[ 4475.422168][   T73]      inet6_addr_add+0x12f/0xa40
[ 4475.422168][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4475.422168][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4475.422168][   T73]      netlink_rcv_skb+0x130/0x360
[ 4475.422168][   T73]      netlink_unicast+0x449/0x710
[ 4475.422168][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4475.422168][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4475.422168][   T73]      ___sys_sendmsg+0xee/0x170
[ 4475.422168][   T73]      __sys_sendmsg+0xcd/0x170
[ 4475.422168][   T73]      do_syscall_64+0xc6/0x1e0
[ 4475.422168][   T73] 
[ 4475.425231][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4475.425231][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4475.425231][   T73]      ipv6_find_idev+0x102/0x170
[ 4475.425231][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4475.425231][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4475.425231][   T73]      netlink_rcv_skb+0x130/0x360
[ 4475.425231][   T73]      netlink_unicast+0x449/0x710
[ 4475.425231][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4475.425231][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4475.425231][   T73]      ___sys_sendmsg+0xee/0x170
[ 4475.425231][   T73]      __sys_sendmsg+0xcd/0x170
[ 4475.425231][   T73]      do_syscall_64+0xc6/0x1e0
[ 4475.425231][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4475.425231][   T73] 
[ 4475.427376][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4475.427376][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4475.427376][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4475.427376][   T73]      ipv6_find_idev+0x102/0x170
[ 4475.427376][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4475.427376][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4475.427376][   T73]      netlink_rcv_skb+0x130/0x360
[ 4475.427376][   T73]      netlink_unicast+0x449/0x710
[ 4475.427376][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4475.427376][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4475.427376][   T73]      ___sys_sendmsg+0xee/0x170
[ 4475.427376][   T73]      __sys_sendmsg+0xcd/0x170
[ 4475.427376][   T73]      do_syscall_64+0xc6/0x1e0
[ 4475.427376][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4475.427376][   T73] 
[ 4475.429091][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4475.429374][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4475.429374][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4475.429374][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4475.429374][   T73]      fib6_nh_init+0xa22/0x1580
[ 4475.429374][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4475.429374][   T73]      ip6_route_add+0x1c/0x140
[ 4475.429374][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4475.429374][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4475.429374][   T73]      netlink_rcv_skb+0x130/0x360
[ 4475.429374][   T73]      netlink_unicast+0x449/0x710
[ 4475.429374][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4475.429374][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4475.429374][   T73]      ___sys_sendmsg+0xee/0x170
[ 4475.429374][   T73]      __sys_sendmsg+0xcd/0x170
[ 4475.429374][   T73]      do_syscall_64+0xc6/0x1e0
[ 4475.429374][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4475.429374][   T73] 
[ 4475.431468][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4475.431468][   T73]      dst_init+0x84/0x4a0
[ 4475.431468][   T73]      dst_alloc+0x97/0x150
[ 4475.431468][   T73]      ip6_dst_alloc+0x23/0x90
[ 4475.431468][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4475.431468][   T73]      ip6_pol_route+0x56f/0x840
[ 4475.431468][   T73]      fib6_rule_lookup+0x456/0x630
[ 4475.431468][   T73]      ip6_route_input+0x59c/0xa50
[ 4475.431468][   T73]      ipv6_rcv+0x397/0x810
[ 4475.431468][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4475.431468][   T73]      process_backlog+0x101/0x620
[ 4475.431468][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4475.431468][   T73]      net_rx_action+0x495/0xbe0
[ 4475.431468][   T73]      __do_softirq+0x1b5/0x7f6
[ 4475.431468][   T73] 
[ 4475.433310][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4475.433310][   T73]      netdev_get_by_index+0x5e/0x80
[ 4475.433310][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4475.433310][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4475.433310][   T73]      ip6_route_add+0x1c/0x140
[ 4475.433310][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4475.433310][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4475.433310][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4475.433310][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4475.433310][   T73]      netlink_rcv_skb+0x130/0x360
[ 4475.433310][   T73]      netlink_unicast+0x449/0x710
[ 4475.433310][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4475.433310][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4475.433310][   T73]      ___sys_sendmsg+0xee/0x170
[ 4475.433310][   T73]      __sys_sendmsg+0xcd/0x170
[ 4475.433310][   T73]      do_syscall_64+0xc6/0x1e0
[ 4475.433310][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4475.433310][   T73] 
[ 4475.435588][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4475.435588][   T73]      netdev_get_by_index+0x5e/0x80
[ 4475.435588][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4475.435588][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4475.435588][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4475.435588][   T73]      ipv6_add_addr+0x411/0x2000
[ 4475.435588][   T73]      inet6_addr_add+0x30e/0xa40
[ 4475.435588][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4475.435588][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4475.435588][   T73]      netlink_rcv_skb+0x130/0x360
[ 4475.435588][   T73]      netlink_unicast+0x449/0x710
[ 4475.435588][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4475.435588][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4475.435588][   T73]      ___sys_sendmsg+0xee/0x170
[ 4475.435588][   T73]      __sys_sendmsg+0xcd/0x170
[ 4475.435588][   T73]      do_syscall_64+0xc6/0x1e0
[ 4475.435588][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4475.435588][   T73] 
[ 4475.438330][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4475.438330][   T73]      netdev_get_by_index+0x5e/0x80
[ 4475.438330][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4475.438330][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4475.438330][   T73]      ip6_route_add+0x1c/0x140
[ 4475.438330][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4475.438330][   T73]      addrconf_add_dev+0xe2/0x170
[ 4475.438330][   T73]      inet6_addr_add+0x12f/0xa40
[ 4475.438330][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4475.438330][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4475.438330][   T73]      netlink_rcv_skb+0x130/0x360
[ 4475.438330][   T73]      netlink_unicast+0x449/0x710
[ 4475.438330][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4475.438330][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4475.438330][   T73]      ___sys_sendmsg+0xee/0x170
[ 4475.438330][   T73]      __sys_sendmsg+0xcd/0x170
[ 4475.438330][   T73]      do_syscall_64+0xc6/0x1e0
[ 4475.438330][   T73] 
[ 4475.440580][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4475.440580][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4475.440580][   T73]      ipv6_find_idev+0x102/0x170
[ 4475.440580][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4475.440580][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4475.440580][   T73]      netlink_rcv_skb+0x130/0x360
[ 4475.440580][   T73]      netlink_unicast+0x449/0x710
[ 4475.440580][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4475.440580][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4475.440580][   T73]      ___sys_sendmsg+0xee/0x170
[ 4475.440580][   T73]      __sys_sendmsg+0xcd/0x170
[ 4475.440580][   T73]      do_syscall_64+0xc6/0x1e0
[ 4475.440580][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4475.440580][   T73] 
[ 4475.442322][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4475.442322][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4475.442322][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4475.442322][   T73]      ipv6_find_idev+0x102/0x170
[ 4475.442322][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4475.442322][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4475.442322][   T73]      netlink_rcv_skb+0x130/0x360
[ 4475.442322][   T73]      netlink_unicast+0x449/0x710
[ 4475.442322][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4475.442322][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4475.442322][   T73]      ___sys_sendmsg+0xee/0x170
[ 4475.442322][   T73]      __sys_sendmsg+0xcd/0x170
[ 4475.442322][   T73]      do_syscall_64+0xc6/0x1e0
[ 4475.442322][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4475.442322][   T73] 
[ 4475.444231][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4475.444583][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4475.444583][   T73]      netdev_get_by_index+0x5e/0x80
[ 4475.444583][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4475.444583][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4475.444583][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4475.444583][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4475.444583][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4475.444583][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4475.444583][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4475.444583][   T73]      addrconf_dad_begin+0x310/0x670
[ 4475.444583][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4475.444583][   T73]      process_one_work+0x84d/0x18a0
[ 4475.444583][   T73]      worker_thread+0x587/0xd30
[ 4475.444583][   T73]      kthread+0x28a/0x350
[ 4475.444583][   T73]      ret_from_fork+0x31/0x70
[ 4475.444583][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4475.444583][   T73] 
[ 4475.446853][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4475.446853][   T73]      netdev_get_by_index+0x5e/0x80
[ 4475.446853][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4475.446853][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4475.446853][   T73]      ip6_route_add+0x1c/0x140
[ 4475.446853][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4475.446853][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4475.446853][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4475.446853][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4475.446853][   T73]      netlink_rcv_skb+0x130/0x360
[ 4475.446853][   T73]      netlink_unicast+0x449/0x710
[ 4475.446853][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4475.446853][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4475.446853][   T73]      ___sys_sendmsg+0xee/0x170
[ 4475.446853][   T73]      __sys_sendmsg+0xcd/0x170
[ 4475.446853][   T73]      do_syscall_64+0xc6/0x1e0
[ 4475.446853][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4475.446853][   T73] 
[ 4475.449221][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4475.449221][   T73]      netdev_get_by_index+0x5e/0x80
[ 4475.449221][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4475.449221][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4475.449221][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4475.449221][   T73]      ipv6_add_addr+0x411/0x2000
[ 4475.449221][   T73]      inet6_addr_add+0x30e/0xa40
[ 4475.449221][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4475.449221][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4475.449221][   T73]      netlink_rcv_skb+0x130/0x360
[ 4475.449221][   T73]      netlink_unicast+0x449/0x710
[ 4475.449221][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4475.449221][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4475.449221][   T73]      ___sys_sendmsg+0xee/0x170
[ 4475.449221][   T73]      __sys_sendmsg+0xcd/0x170
[ 4475.449221][   T73]      do_syscall_64+0xc6/0x1e0
[ 4475.449221][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4475.449221][   T73] 
[ 4475.451569][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4475.451569][   T73]      netdev_get_by_index+0x5e/0x80
[ 4475.451569][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4475.451569][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4475.451569][   T73]      ip6_route_add+0x1c/0x140
[ 4475.451569][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4475.451569][   T73]      addrconf_add_dev+0xe2/0x170
[ 4475.451569][   T73]      inet6_addr_add+0x12f/0xa40
[ 4475.451569][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4475.451569][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4475.451569][   T73]      netlink_rcv_skb+0x130/0x360
[ 4475.451569][   T73]      netlink_unicast+0x449/0x710
[ 4475.451569][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4475.451569][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4475.451569][   T73]      ___sys_sendmsg+0xee/0x170
[ 4475.451569][   T73]      __sys_sendmsg+0xcd/0x170
[ 4475.451569][   T73]      do_syscall_64+0xc6/0x1e0
[ 4475.451569][   T73] 
[ 4475.453808][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4475.453808][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4475.453808][   T73]      ipv6_find_idev+0x102/0x170
[ 4475.453808][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4475.453808][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4475.453808][   T73]      netlink_rcv_skb+0x130/0x360
[ 4475.453808][   T73]      netlink_unicast+0x449/0x710
[ 4475.453808][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4475.453808][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4475.453808][   T73]      ___sys_sendmsg+0xee/0x170
[ 4475.453808][   T73]      __sys_sendmsg+0xcd/0x170
[ 4475.453808][   T73]      do_syscall_64+0xc6/0x1e0
[ 4475.453808][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4475.453808][   T73] 
[ 4475.455570][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4475.455570][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4475.455570][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4475.455570][   T73]      ipv6_find_idev+0x102/0x170
[ 4475.455570][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4475.455570][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4475.455570][   T73]      netlink_rcv_skb+0x130/0x360
[ 4475.455570][   T73]      netlink_unicast+0x449/0x710
[ 4475.455570][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4475.455570][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4475.455570][   T73]      ___sys_sendmsg+0xee/0x170
[ 4475.455570][   T73]      __sys_sendmsg+0xcd/0x170
[ 4475.455570][   T73]      do_syscall_64+0xc6/0x1e0
[ 4475.455570][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4475.455570][   T73] 
[ 4485.655788][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4485.656388][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4485.656388][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4485.656388][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4485.656388][   T73]      fib6_nh_init+0xa22/0x1580
[ 4485.656388][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4485.656388][   T73]      ip6_route_add+0x1c/0x140
[ 4485.656388][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4485.656388][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4485.656388][   T73]      netlink_rcv_skb+0x130/0x360
[ 4485.656388][   T73]      netlink_unicast+0x449/0x710
[ 4485.656388][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4485.656388][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4485.656388][   T73]      ___sys_sendmsg+0xee/0x170
[ 4485.656388][   T73]      __sys_sendmsg+0xcd/0x170
[ 4485.656388][   T73]      do_syscall_64+0xc6/0x1e0
[ 4485.656388][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4485.656388][   T73] 
[ 4485.659512][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4485.659512][   T73]      dst_init+0x84/0x4a0
[ 4485.659512][   T73]      dst_alloc+0x97/0x150
[ 4485.659512][   T73]      ip6_dst_alloc+0x23/0x90
[ 4485.659512][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4485.659512][   T73]      ip6_pol_route+0x56f/0x840
[ 4485.659512][   T73]      fib6_rule_lookup+0x456/0x630
[ 4485.659512][   T73]      ip6_route_input+0x59c/0xa50
[ 4485.659512][   T73]      ipv6_rcv+0x397/0x810
[ 4485.659512][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4485.659512][   T73]      process_backlog+0x101/0x620
[ 4485.659512][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4485.659512][   T73]      net_rx_action+0x495/0xbe0
[ 4485.659512][   T73]      __do_softirq+0x1b5/0x7f6
[ 4485.659512][   T73] 
[ 4485.662067][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4485.662067][   T73]      netdev_get_by_index+0x5e/0x80
[ 4485.662067][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4485.662067][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4485.662067][   T73]      ip6_route_add+0x1c/0x140
[ 4485.662067][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4485.662067][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4485.662067][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4485.662067][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4485.662067][   T73]      netlink_rcv_skb+0x130/0x360
[ 4485.662067][   T73]      netlink_unicast+0x449/0x710
[ 4485.662067][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4485.662067][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4485.662067][   T73]      ___sys_sendmsg+0xee/0x170
[ 4485.662067][   T73]      __sys_sendmsg+0xcd/0x170
[ 4485.662067][   T73]      do_syscall_64+0xc6/0x1e0
[ 4485.662067][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4485.662067][   T73] 
[ 4485.665269][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4485.665269][   T73]      netdev_get_by_index+0x5e/0x80
[ 4485.665269][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4485.665269][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4485.665269][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4485.665269][   T73]      ipv6_add_addr+0x411/0x2000
[ 4485.665269][   T73]      inet6_addr_add+0x30e/0xa40
[ 4485.665269][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4485.665269][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4485.665269][   T73]      netlink_rcv_skb+0x130/0x360
[ 4485.665269][   T73]      netlink_unicast+0x449/0x710
[ 4485.665269][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4485.665269][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4485.665269][   T73]      ___sys_sendmsg+0xee/0x170
[ 4485.665269][   T73]      __sys_sendmsg+0xcd/0x170
[ 4485.665269][   T73]      do_syscall_64+0xc6/0x1e0
[ 4485.665269][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4485.665269][   T73] 
[ 4485.668415][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4485.668415][   T73]      netdev_get_by_index+0x5e/0x80
[ 4485.668415][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4485.668415][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4485.668415][   T73]      ip6_route_add+0x1c/0x140
[ 4485.668415][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4485.668415][   T73]      addrconf_add_dev+0xe2/0x170
[ 4485.668415][   T73]      inet6_addr_add+0x12f/0xa40
[ 4485.668415][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4485.668415][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4485.668415][   T73]      netlink_rcv_skb+0x130/0x360
[ 4485.668415][   T73]      netlink_unicast+0x449/0x710
[ 4485.668415][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4485.668415][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4485.668415][   T73]      ___sys_sendmsg+0xee/0x170
[ 4485.668415][   T73]      __sys_sendmsg+0xcd/0x170
[ 4485.668415][   T73]      do_syscall_64+0xc6/0x1e0
[ 4485.668415][   T73] 
[ 4485.671800][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4485.671800][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4485.671800][   T73]      ipv6_find_idev+0x102/0x170
[ 4485.671800][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4485.671800][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4485.671800][   T73]      netlink_rcv_skb+0x130/0x360
[ 4485.671800][   T73]      netlink_unicast+0x449/0x710
[ 4485.671800][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4485.671800][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4485.671800][   T73]      ___sys_sendmsg+0xee/0x170
[ 4485.671800][   T73]      __sys_sendmsg+0xcd/0x170
[ 4485.671800][   T73]      do_syscall_64+0xc6/0x1e0
[ 4485.671800][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4485.671800][   T73] 
[ 4485.674175][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4485.674175][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4485.674175][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4485.674175][   T73]      ipv6_find_idev+0x102/0x170
[ 4485.674175][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4485.674175][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4485.674175][   T73]      netlink_rcv_skb+0x130/0x360
[ 4485.674175][   T73]      netlink_unicast+0x449/0x710
[ 4485.674175][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4485.674175][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4485.674175][   T73]      ___sys_sendmsg+0xee/0x170
[ 4485.674175][   T73]      __sys_sendmsg+0xcd/0x170
[ 4485.674175][   T73]      do_syscall_64+0xc6/0x1e0
[ 4485.674175][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4485.674175][   T73] 
[ 4485.676948][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4485.677353][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4485.677353][   T73]      netdev_get_by_index+0x5e/0x80
[ 4485.677353][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4485.677353][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4485.677353][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4485.677353][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4485.677353][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4485.677353][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4485.677353][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4485.677353][   T73]      addrconf_dad_begin+0x310/0x670
[ 4485.677353][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4485.677353][   T73]      process_one_work+0x84d/0x18a0
[ 4485.677353][   T73]      worker_thread+0x587/0xd30
[ 4485.677353][   T73]      kthread+0x28a/0x350
[ 4485.677353][   T73]      ret_from_fork+0x31/0x70
[ 4485.677353][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4485.677353][   T73] 
[ 4485.680331][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4485.680331][   T73]      netdev_get_by_index+0x5e/0x80
[ 4485.680331][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4485.680331][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4485.680331][   T73]      ip6_route_add+0x1c/0x140
[ 4485.680331][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4485.680331][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4485.680331][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4485.680331][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4485.680331][   T73]      netlink_rcv_skb+0x130/0x360
[ 4485.680331][   T73]      netlink_unicast+0x449/0x710
[ 4485.680331][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4485.680331][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4485.680331][   T73]      ___sys_sendmsg+0xee/0x170
[ 4485.680331][   T73]      __sys_sendmsg+0xcd/0x170
[ 4485.680331][   T73]      do_syscall_64+0xc6/0x1e0
[ 4485.680331][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4485.680331][   T73] 
[ 4485.683366][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4485.683366][   T73]      netdev_get_by_index+0x5e/0x80
[ 4485.683366][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4485.683366][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4485.683366][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4485.683366][   T73]      ipv6_add_addr+0x411/0x2000
[ 4485.683366][   T73]      inet6_addr_add+0x30e/0xa40
[ 4485.683366][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4485.683366][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4485.683366][   T73]      netlink_rcv_skb+0x130/0x360
[ 4485.683366][   T73]      netlink_unicast+0x449/0x710
[ 4485.683366][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4485.683366][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4485.683366][   T73]      ___sys_sendmsg+0xee/0x170
[ 4485.683366][   T73]      __sys_sendmsg+0xcd/0x170
[ 4485.683366][   T73]      do_syscall_64+0xc6/0x1e0
[ 4485.683366][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4485.683366][   T73] 
[ 4485.686440][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4485.686440][   T73]      netdev_get_by_index+0x5e/0x80
[ 4485.686440][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4485.686440][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4485.686440][   T73]      ip6_route_add+0x1c/0x140
[ 4485.686440][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4485.686440][   T73]      addrconf_add_dev+0xe2/0x170
[ 4485.686440][   T73]      inet6_addr_add+0x12f/0xa40
[ 4485.686440][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4485.686440][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4485.686440][   T73]      netlink_rcv_skb+0x130/0x360
[ 4485.686440][   T73]      netlink_unicast+0x449/0x710
[ 4485.686440][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4485.686440][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4485.686440][   T73]      ___sys_sendmsg+0xee/0x170
[ 4485.686440][   T73]      __sys_sendmsg+0xcd/0x170
[ 4485.686440][   T73]      do_syscall_64+0xc6/0x1e0
[ 4485.686440][   T73] 
[ 4485.689591][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4485.689591][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4485.689591][   T73]      ipv6_find_idev+0x102/0x170
[ 4485.689591][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4485.689591][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4485.689591][   T73]      netlink_rcv_skb+0x130/0x360
[ 4485.689591][   T73]      netlink_unicast+0x449/0x710
[ 4485.689591][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4485.689591][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4485.689591][   T73]      ___sys_sendmsg+0xee/0x170
[ 4485.689591][   T73]      __sys_sendmsg+0xcd/0x170
[ 4485.689591][   T73]      do_syscall_64+0xc6/0x1e0
[ 4485.689591][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4485.689591][   T73] 
[ 4485.691425][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4485.691425][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4485.691425][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4485.691425][   T73]      ipv6_find_idev+0x102/0x170
[ 4485.691425][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4485.691425][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4485.691425][   T73]      netlink_rcv_skb+0x130/0x360
[ 4485.691425][   T73]      netlink_unicast+0x449/0x710
[ 4485.691425][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4485.691425][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4485.691425][   T73]      ___sys_sendmsg+0xee/0x170
[ 4485.691425][   T73]      __sys_sendmsg+0xcd/0x170
[ 4485.691425][   T73]      do_syscall_64+0xc6/0x1e0
[ 4485.691425][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4485.691425][   T73] 
[ 4485.693144][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4485.693543][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4485.693543][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4485.693543][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4485.693543][   T73]      fib6_nh_init+0xa22/0x1580
[ 4485.693543][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4485.693543][   T73]      ip6_route_add+0x1c/0x140
[ 4485.693543][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4485.693543][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4485.693543][   T73]      netlink_rcv_skb+0x130/0x360
[ 4485.693543][   T73]      netlink_unicast+0x449/0x710
[ 4485.693543][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4485.693543][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4485.693543][   T73]      ___sys_sendmsg+0xee/0x170
[ 4485.693543][   T73]      __sys_sendmsg+0xcd/0x170
[ 4485.693543][   T73]      do_syscall_64+0xc6/0x1e0
[ 4485.693543][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4485.693543][   T73] 
[ 4485.696053][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4485.696053][   T73]      dst_init+0x84/0x4a0
[ 4485.696053][   T73]      dst_alloc+0x97/0x150
[ 4485.696053][   T73]      ip6_dst_alloc+0x23/0x90
[ 4485.696053][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4485.696053][   T73]      ip6_pol_route+0x56f/0x840
[ 4485.696053][   T73]      fib6_rule_lookup+0x456/0x630
[ 4485.696053][   T73]      ip6_route_input+0x59c/0xa50
[ 4485.696053][   T73]      ipv6_rcv+0x397/0x810
[ 4485.696053][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4485.696053][   T73]      process_backlog+0x101/0x620
[ 4485.696053][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4485.696053][   T73]      net_rx_action+0x495/0xbe0
[ 4485.696053][   T73]      __do_softirq+0x1b5/0x7f6
[ 4485.696053][   T73] 
[ 4485.697957][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4485.697957][   T73]      netdev_get_by_index+0x5e/0x80
[ 4485.697957][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4485.697957][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4485.697957][   T73]      ip6_route_add+0x1c/0x140
[ 4485.697957][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4485.697957][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4485.697957][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4485.697957][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4485.697957][   T73]      netlink_rcv_skb+0x130/0x360
[ 4485.697957][   T73]      netlink_unicast+0x449/0x710
[ 4485.697957][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4485.697957][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4485.697957][   T73]      ___sys_sendmsg+0xee/0x170
[ 4485.697957][   T73]      __sys_sendmsg+0xcd/0x170
[ 4485.697957][   T73]      do_syscall_64+0xc6/0x1e0
[ 4485.697957][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4485.697957][   T73] 
[ 4485.700230][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4485.700230][   T73]      netdev_get_by_index+0x5e/0x80
[ 4485.700230][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4485.700230][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4485.700230][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4485.700230][   T73]      ipv6_add_addr+0x411/0x2000
[ 4485.700230][   T73]      inet6_addr_add+0x30e/0xa40
[ 4485.700230][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4485.700230][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4485.700230][   T73]      netlink_rcv_skb+0x130/0x360
[ 4485.700230][   T73]      netlink_unicast+0x449/0x710
[ 4485.700230][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4485.700230][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4485.700230][   T73]      ___sys_sendmsg+0xee/0x170
[ 4485.700230][   T73]      __sys_sendmsg+0xcd/0x170
[ 4485.700230][   T73]      do_syscall_64+0xc6/0x1e0
[ 4485.700230][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4485.700230][   T73] 
[ 4485.702424][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4485.702424][   T73]      netdev_get_by_index+0x5e/0x80
[ 4485.702424][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4485.702424][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4485.702424][   T73]      ip6_route_add+0x1c/0x140
[ 4485.702424][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4485.702424][   T73]      addrconf_add_dev+0xe2/0x170
[ 4485.702424][   T73]      inet6_addr_add+0x12f/0xa40
[ 4485.702424][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4485.702424][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4485.702424][   T73]      netlink_rcv_skb+0x130/0x360
[ 4485.702424][   T73]      netlink_unicast+0x449/0x710
[ 4485.702424][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4485.702424][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4485.702424][   T73]      ___sys_sendmsg+0xee/0x170
[ 4485.702424][   T73]      __sys_sendmsg+0xcd/0x170
[ 4485.702424][   T73]      do_syscall_64+0xc6/0x1e0
[ 4485.702424][   T73] 
[ 4485.704748][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4485.704748][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4485.704748][   T73]      ipv6_find_idev+0x102/0x170
[ 4485.704748][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4485.704748][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4485.704748][   T73]      netlink_rcv_skb+0x130/0x360
[ 4485.704748][   T73]      netlink_unicast+0x449/0x710
[ 4485.704748][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4485.704748][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4485.704748][   T73]      ___sys_sendmsg+0xee/0x170
[ 4485.704748][   T73]      __sys_sendmsg+0xcd/0x170
[ 4485.704748][   T73]      do_syscall_64+0xc6/0x1e0
[ 4485.704748][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4485.704748][   T73] 
[ 4485.706583][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4485.706583][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4485.706583][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4485.706583][   T73]      ipv6_find_idev+0x102/0x170
[ 4485.706583][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4485.706583][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4485.706583][   T73]      netlink_rcv_skb+0x130/0x360
[ 4485.706583][   T73]      netlink_unicast+0x449/0x710
[ 4485.706583][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4485.706583][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4485.706583][   T73]      ___sys_sendmsg+0xee/0x170
[ 4485.706583][   T73]      __sys_sendmsg+0xcd/0x170
[ 4485.706583][   T73]      do_syscall_64+0xc6/0x1e0
[ 4485.706583][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4485.706583][   T73] 
[ 4485.708479][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4485.709275][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4485.709275][   T73]      netdev_get_by_index+0x5e/0x80
[ 4485.709275][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4485.709275][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4485.709275][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4485.709275][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4485.709275][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4485.709275][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4485.709275][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4485.709275][   T73]      addrconf_dad_begin+0x310/0x670
[ 4485.709275][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4485.709275][   T73]      process_one_work+0x84d/0x18a0
[ 4485.709275][   T73]      worker_thread+0x587/0xd30
[ 4485.709275][   T73]      kthread+0x28a/0x350
[ 4485.709275][   T73]      ret_from_fork+0x31/0x70
[ 4485.709275][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4485.709275][   T73] 
[ 4485.711198][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4485.711198][   T73]      netdev_get_by_index+0x5e/0x80
[ 4485.711198][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4485.711198][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4485.711198][   T73]      ip6_route_add+0x1c/0x140
[ 4485.711198][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4485.711198][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4485.711198][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4485.711198][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4485.711198][   T73]      netlink_rcv_skb+0x130/0x360
[ 4485.711198][   T73]      netlink_unicast+0x449/0x710
[ 4485.711198][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4485.711198][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4485.711198][   T73]      ___sys_sendmsg+0xee/0x170
[ 4485.711198][   T73]      __sys_sendmsg+0xcd/0x170
[ 4485.711198][   T73]      do_syscall_64+0xc6/0x1e0
[ 4485.711198][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4485.711198][   T73] 
[ 4485.713277][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4485.713277][   T73]      netdev_get_by_index+0x5e/0x80
[ 4485.713277][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4485.713277][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4485.713277][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4485.713277][   T73]      ipv6_add_addr+0x411/0x2000
[ 4485.713277][   T73]      inet6_addr_add+0x30e/0xa40
[ 4485.713277][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4485.713277][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4485.713277][   T73]      netlink_rcv_skb+0x130/0x360
[ 4485.713277][   T73]      netlink_unicast+0x449/0x710
[ 4485.713277][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4485.713277][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4485.713277][   T73]      ___sys_sendmsg+0xee/0x170
[ 4485.713277][   T73]      __sys_sendmsg+0xcd/0x170
[ 4485.713277][   T73]      do_syscall_64+0xc6/0x1e0
[ 4485.713277][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4485.713277][   T73] 
[ 4485.715553][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4485.715553][   T73]      netdev_get_by_index+0x5e/0x80
[ 4485.715553][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4485.715553][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4485.715553][   T73]      ip6_route_add+0x1c/0x140
[ 4485.715553][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4485.715553][   T73]      addrconf_add_dev+0xe2/0x170
[ 4485.715553][   T73]      inet6_addr_add+0x12f/0xa40
[ 4485.715553][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4485.715553][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4485.715553][   T73]      netlink_rcv_skb+0x130/0x360
[ 4485.715553][   T73]      netlink_unicast+0x449/0x710
[ 4485.715553][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4485.715553][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4485.715553][   T73]      ___sys_sendmsg+0xee/0x170
[ 4485.715553][   T73]      __sys_sendmsg+0xcd/0x170
[ 4485.715553][   T73]      do_syscall_64+0xc6/0x1e0
[ 4485.715553][   T73] 
[ 4485.717779][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4485.717779][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4485.717779][   T73]      ipv6_find_idev+0x102/0x170
[ 4485.717779][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4485.717779][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4485.717779][   T73]      netlink_rcv_skb+0x130/0x360
[ 4485.717779][   T73]      netlink_unicast+0x449/0x710
[ 4485.717779][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4485.717779][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4485.717779][   T73]      ___sys_sendmsg+0xee/0x170
[ 4485.717779][   T73]      __sys_sendmsg+0xcd/0x170
[ 4485.717779][   T73]      do_syscall_64+0xc6/0x1e0
[ 4485.717779][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4485.717779][   T73] 
[ 4485.719646][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4485.719646][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4485.719646][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4485.719646][   T73]      ipv6_find_idev+0x102/0x170
[ 4485.719646][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4485.719646][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4485.719646][   T73]      netlink_rcv_skb+0x130/0x360
[ 4485.719646][   T73]      netlink_unicast+0x449/0x710
[ 4485.719646][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4485.719646][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4485.719646][   T73]      ___sys_sendmsg+0xee/0x170
[ 4485.719646][   T73]      __sys_sendmsg+0xcd/0x170
[ 4485.719646][   T73]      do_syscall_64+0xc6/0x1e0
[ 4485.719646][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4485.719646][   T73] 
[ 4495.959792][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4495.960310][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4495.960310][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4495.960310][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4495.960310][   T73]      fib6_nh_init+0xa22/0x1580
[ 4495.960310][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4495.960310][   T73]      ip6_route_add+0x1c/0x140
[ 4495.960310][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4495.960310][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4495.960310][   T73]      netlink_rcv_skb+0x130/0x360
[ 4495.960310][   T73]      netlink_unicast+0x449/0x710
[ 4495.960310][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4495.960310][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4495.960310][   T73]      ___sys_sendmsg+0xee/0x170
[ 4495.960310][   T73]      __sys_sendmsg+0xcd/0x170
[ 4495.960310][   T73]      do_syscall_64+0xc6/0x1e0
[ 4495.960310][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4495.960310][   T73] 
[ 4495.962527][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4495.962527][   T73]      dst_init+0x84/0x4a0
[ 4495.962527][   T73]      dst_alloc+0x97/0x150
[ 4495.962527][   T73]      ip6_dst_alloc+0x23/0x90
[ 4495.962527][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4495.962527][   T73]      ip6_pol_route+0x56f/0x840
[ 4495.962527][   T73]      fib6_rule_lookup+0x456/0x630
[ 4495.962527][   T73]      ip6_route_input+0x59c/0xa50
[ 4495.962527][   T73]      ipv6_rcv+0x397/0x810
[ 4495.962527][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4495.962527][   T73]      process_backlog+0x101/0x620
[ 4495.962527][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4495.962527][   T73]      net_rx_action+0x495/0xbe0
[ 4495.962527][   T73]      __do_softirq+0x1b5/0x7f6
[ 4495.962527][   T73] 
[ 4495.964600][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4495.964600][   T73]      netdev_get_by_index+0x5e/0x80
[ 4495.964600][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4495.964600][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4495.964600][   T73]      ip6_route_add+0x1c/0x140
[ 4495.964600][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4495.964600][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4495.964600][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4495.964600][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4495.964600][   T73]      netlink_rcv_skb+0x130/0x360
[ 4495.964600][   T73]      netlink_unicast+0x449/0x710
[ 4495.964600][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4495.964600][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4495.964600][   T73]      ___sys_sendmsg+0xee/0x170
[ 4495.964600][   T73]      __sys_sendmsg+0xcd/0x170
[ 4495.964600][   T73]      do_syscall_64+0xc6/0x1e0
[ 4495.964600][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4495.964600][   T73] 
[ 4495.967102][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4495.967102][   T73]      netdev_get_by_index+0x5e/0x80
[ 4495.967102][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4495.967102][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4495.967102][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4495.967102][   T73]      ipv6_add_addr+0x411/0x2000
[ 4495.967102][   T73]      inet6_addr_add+0x30e/0xa40
[ 4495.967102][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4495.967102][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4495.967102][   T73]      netlink_rcv_skb+0x130/0x360
[ 4495.967102][   T73]      netlink_unicast+0x449/0x710
[ 4495.967102][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4495.967102][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4495.967102][   T73]      ___sys_sendmsg+0xee/0x170
[ 4495.967102][   T73]      __sys_sendmsg+0xcd/0x170
[ 4495.967102][   T73]      do_syscall_64+0xc6/0x1e0
[ 4495.967102][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4495.967102][   T73] 
[ 4495.969589][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4495.969589][   T73]      netdev_get_by_index+0x5e/0x80
[ 4495.969589][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4495.969589][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4495.969589][   T73]      ip6_route_add+0x1c/0x140
[ 4495.969589][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4495.969589][   T73]      addrconf_add_dev+0xe2/0x170
[ 4495.969589][   T73]      inet6_addr_add+0x12f/0xa40
[ 4495.969589][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4495.969589][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4495.969589][   T73]      netlink_rcv_skb+0x130/0x360
[ 4495.969589][   T73]      netlink_unicast+0x449/0x710
[ 4495.969589][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4495.969589][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4495.969589][   T73]      ___sys_sendmsg+0xee/0x170
[ 4495.969589][   T73]      __sys_sendmsg+0xcd/0x170
[ 4495.969589][   T73]      do_syscall_64+0xc6/0x1e0
[ 4495.969589][   T73] 
[ 4495.972041][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4495.972041][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4495.972041][   T73]      ipv6_find_idev+0x102/0x170
[ 4495.972041][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4495.972041][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4495.972041][   T73]      netlink_rcv_skb+0x130/0x360
[ 4495.972041][   T73]      netlink_unicast+0x449/0x710
[ 4495.972041][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4495.972041][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4495.972041][   T73]      ___sys_sendmsg+0xee/0x170
[ 4495.972041][   T73]      __sys_sendmsg+0xcd/0x170
[ 4495.972041][   T73]      do_syscall_64+0xc6/0x1e0
[ 4495.972041][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4495.972041][   T73] 
[ 4495.973962][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4495.973962][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4495.973962][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4495.973962][   T73]      ipv6_find_idev+0x102/0x170
[ 4495.973962][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4495.973962][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4495.973962][   T73]      netlink_rcv_skb+0x130/0x360
[ 4495.973962][   T73]      netlink_unicast+0x449/0x710
[ 4495.973962][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4495.973962][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4495.973962][   T73]      ___sys_sendmsg+0xee/0x170
[ 4495.973962][   T73]      __sys_sendmsg+0xcd/0x170
[ 4495.973962][   T73]      do_syscall_64+0xc6/0x1e0
[ 4495.973962][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4495.973962][   T73] 
[ 4495.976067][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4495.976422][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4495.976422][   T73]      netdev_get_by_index+0x5e/0x80
[ 4495.976422][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4495.976422][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4495.976422][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4495.976422][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4495.976422][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4495.976422][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4495.976422][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4495.976422][   T73]      addrconf_dad_begin+0x310/0x670
[ 4495.976422][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4495.976422][   T73]      process_one_work+0x84d/0x18a0
[ 4495.976422][   T73]      worker_thread+0x587/0xd30
[ 4495.976422][   T73]      kthread+0x28a/0x350
[ 4495.976422][   T73]      ret_from_fork+0x31/0x70
[ 4495.976422][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4495.976422][   T73] 
[ 4495.978801][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4495.978801][   T73]      netdev_get_by_index+0x5e/0x80
[ 4495.978801][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4495.978801][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4495.978801][   T73]      ip6_route_add+0x1c/0x140
[ 4495.978801][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4495.978801][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4495.978801][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4495.978801][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4495.978801][   T73]      netlink_rcv_skb+0x130/0x360
[ 4495.978801][   T73]      netlink_unicast+0x449/0x710
[ 4495.978801][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4495.978801][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4495.978801][   T73]      ___sys_sendmsg+0xee/0x170
[ 4495.978801][   T73]      __sys_sendmsg+0xcd/0x170
[ 4495.978801][   T73]      do_syscall_64+0xc6/0x1e0
[ 4495.978801][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4495.978801][   T73] 
[ 4495.981292][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4495.981292][   T73]      netdev_get_by_index+0x5e/0x80
[ 4495.981292][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4495.981292][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4495.981292][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4495.981292][   T73]      ipv6_add_addr+0x411/0x2000
[ 4495.981292][   T73]      inet6_addr_add+0x30e/0xa40
[ 4495.981292][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4495.981292][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4495.981292][   T73]      netlink_rcv_skb+0x130/0x360
[ 4495.981292][   T73]      netlink_unicast+0x449/0x710
[ 4495.981292][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4495.981292][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4495.981292][   T73]      ___sys_sendmsg+0xee/0x170
[ 4495.981292][   T73]      __sys_sendmsg+0xcd/0x170
[ 4495.981292][   T73]      do_syscall_64+0xc6/0x1e0
[ 4495.981292][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4495.981292][   T73] 
[ 4495.983786][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4495.983786][   T73]      netdev_get_by_index+0x5e/0x80
[ 4495.983786][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4495.983786][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4495.983786][   T73]      ip6_route_add+0x1c/0x140
[ 4495.983786][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4495.983786][   T73]      addrconf_add_dev+0xe2/0x170
[ 4495.983786][   T73]      inet6_addr_add+0x12f/0xa40
[ 4495.983786][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4495.983786][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4495.983786][   T73]      netlink_rcv_skb+0x130/0x360
[ 4495.983786][   T73]      netlink_unicast+0x449/0x710
[ 4495.983786][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4495.983786][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4495.983786][   T73]      ___sys_sendmsg+0xee/0x170
[ 4495.983786][   T73]      __sys_sendmsg+0xcd/0x170
[ 4495.983786][   T73]      do_syscall_64+0xc6/0x1e0
[ 4495.983786][   T73] 
[ 4495.986241][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4495.986241][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4495.986241][   T73]      ipv6_find_idev+0x102/0x170
[ 4495.986241][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4495.986241][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4495.986241][   T73]      netlink_rcv_skb+0x130/0x360
[ 4495.986241][   T73]      netlink_unicast+0x449/0x710
[ 4495.986241][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4495.986241][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4495.986241][   T73]      ___sys_sendmsg+0xee/0x170
[ 4495.986241][   T73]      __sys_sendmsg+0xcd/0x170
[ 4495.986241][   T73]      do_syscall_64+0xc6/0x1e0
[ 4495.986241][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4495.986241][   T73] 
[ 4495.988150][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4495.988150][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4495.988150][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4495.988150][   T73]      ipv6_find_idev+0x102/0x170
[ 4495.988150][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4495.988150][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4495.988150][   T73]      netlink_rcv_skb+0x130/0x360
[ 4495.988150][   T73]      netlink_unicast+0x449/0x710
[ 4495.988150][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4495.988150][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4495.988150][   T73]      ___sys_sendmsg+0xee/0x170
[ 4495.988150][   T73]      __sys_sendmsg+0xcd/0x170
[ 4495.988150][   T73]      do_syscall_64+0xc6/0x1e0
[ 4495.988150][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4495.988150][   T73] 
[ 4495.990256][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4495.990590][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4495.990590][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4495.990590][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4495.990590][   T73]      fib6_nh_init+0xa22/0x1580
[ 4495.990590][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4495.990590][   T73]      ip6_route_add+0x1c/0x140
[ 4495.990590][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4495.990590][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4495.990590][   T73]      netlink_rcv_skb+0x130/0x360
[ 4495.990590][   T73]      netlink_unicast+0x449/0x710
[ 4495.990590][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4495.990590][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4495.990590][   T73]      ___sys_sendmsg+0xee/0x170
[ 4495.990590][   T73]      __sys_sendmsg+0xcd/0x170
[ 4495.990590][   T73]      do_syscall_64+0xc6/0x1e0
[ 4495.990590][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4495.990590][   T73] 
[ 4495.993129][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4495.993129][   T73]      dst_init+0x84/0x4a0
[ 4495.993129][   T73]      dst_alloc+0x97/0x150
[ 4495.993129][   T73]      ip6_dst_alloc+0x23/0x90
[ 4495.993129][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4495.993129][   T73]      ip6_pol_route+0x56f/0x840
[ 4495.993129][   T73]      fib6_rule_lookup+0x456/0x630
[ 4495.993129][   T73]      ip6_route_input+0x59c/0xa50
[ 4495.993129][   T73]      ipv6_rcv+0x397/0x810
[ 4495.993129][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4495.993129][   T73]      process_backlog+0x101/0x620
[ 4495.993129][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4495.993129][   T73]      net_rx_action+0x495/0xbe0
[ 4495.993129][   T73]      __do_softirq+0x1b5/0x7f6
[ 4495.993129][   T73] 
[ 4495.995365][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4495.995365][   T73]      netdev_get_by_index+0x5e/0x80
[ 4495.995365][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4495.995365][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4495.995365][   T73]      ip6_route_add+0x1c/0x140
[ 4495.995365][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4495.995365][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4495.995365][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4495.995365][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4495.995365][   T73]      netlink_rcv_skb+0x130/0x360
[ 4495.995365][   T73]      netlink_unicast+0x449/0x710
[ 4495.995365][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4495.995365][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4495.995365][   T73]      ___sys_sendmsg+0xee/0x170
[ 4495.995365][   T73]      __sys_sendmsg+0xcd/0x170
[ 4495.995365][   T73]      do_syscall_64+0xc6/0x1e0
[ 4495.995365][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4495.995365][   T73] 
[ 4495.998111][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4495.998111][   T73]      netdev_get_by_index+0x5e/0x80
[ 4495.998111][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4495.998111][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4495.998111][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4495.998111][   T73]      ipv6_add_addr+0x411/0x2000
[ 4495.998111][   T73]      inet6_addr_add+0x30e/0xa40
[ 4495.998111][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4495.998111][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4495.998111][   T73]      netlink_rcv_skb+0x130/0x360
[ 4495.998111][   T73]      netlink_unicast+0x449/0x710
[ 4495.998111][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4495.998111][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4495.998111][   T73]      ___sys_sendmsg+0xee/0x170
[ 4495.998111][   T73]      __sys_sendmsg+0xcd/0x170
[ 4495.998111][   T73]      do_syscall_64+0xc6/0x1e0
[ 4495.998111][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4495.998111][   T73] 
[ 4496.000845][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4496.000845][   T73]      netdev_get_by_index+0x5e/0x80
[ 4496.000845][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4496.000845][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4496.000845][   T73]      ip6_route_add+0x1c/0x140
[ 4496.000845][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4496.000845][   T73]      addrconf_add_dev+0xe2/0x170
[ 4496.000845][   T73]      inet6_addr_add+0x12f/0xa40
[ 4496.000845][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4496.000845][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4496.000845][   T73]      netlink_rcv_skb+0x130/0x360
[ 4496.000845][   T73]      netlink_unicast+0x449/0x710
[ 4496.000845][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4496.000845][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4496.000845][   T73]      ___sys_sendmsg+0xee/0x170
[ 4496.000845][   T73]      __sys_sendmsg+0xcd/0x170
[ 4496.000845][   T73]      do_syscall_64+0xc6/0x1e0
[ 4496.000845][   T73] 
[ 4496.003552][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4496.003552][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4496.003552][   T73]      ipv6_find_idev+0x102/0x170
[ 4496.003552][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4496.003552][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4496.003552][   T73]      netlink_rcv_skb+0x130/0x360
[ 4496.003552][   T73]      netlink_unicast+0x449/0x710
[ 4496.003552][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4496.003552][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4496.003552][   T73]      ___sys_sendmsg+0xee/0x170
[ 4496.003552][   T73]      __sys_sendmsg+0xcd/0x170
[ 4496.003552][   T73]      do_syscall_64+0xc6/0x1e0
[ 4496.003552][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4496.003552][   T73] 
[ 4496.005668][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4496.005668][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4496.005668][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4496.005668][   T73]      ipv6_find_idev+0x102/0x170
[ 4496.005668][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4496.005668][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4496.005668][   T73]      netlink_rcv_skb+0x130/0x360
[ 4496.005668][   T73]      netlink_unicast+0x449/0x710
[ 4496.005668][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4496.005668][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4496.005668][   T73]      ___sys_sendmsg+0xee/0x170
[ 4496.005668][   T73]      __sys_sendmsg+0xcd/0x170
[ 4496.005668][   T73]      do_syscall_64+0xc6/0x1e0
[ 4496.005668][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4496.005668][   T73] 
[ 4496.008013][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4496.008343][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4496.008343][   T73]      netdev_get_by_index+0x5e/0x80
[ 4496.008343][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4496.008343][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4496.008343][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4496.008343][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4496.008343][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4496.008343][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4496.008343][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4496.008343][   T73]      addrconf_dad_begin+0x310/0x670
[ 4496.008343][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4496.008343][   T73]      process_one_work+0x84d/0x18a0
[ 4496.008343][   T73]      worker_thread+0x587/0xd30
[ 4496.008343][   T73]      kthread+0x28a/0x350
[ 4496.008343][   T73]      ret_from_fork+0x31/0x70
[ 4496.008343][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4496.008343][   T73] 
[ 4496.010994][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4496.010994][   T73]      netdev_get_by_index+0x5e/0x80
[ 4496.010994][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4496.010994][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4496.010994][   T73]      ip6_route_add+0x1c/0x140
[ 4496.010994][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4496.010994][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4496.010994][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4496.010994][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4496.010994][   T73]      netlink_rcv_skb+0x130/0x360
[ 4496.010994][   T73]      netlink_unicast+0x449/0x710
[ 4496.010994][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4496.010994][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4496.010994][   T73]      ___sys_sendmsg+0xee/0x170
[ 4496.010994][   T73]      __sys_sendmsg+0xcd/0x170
[ 4496.010994][   T73]      do_syscall_64+0xc6/0x1e0
[ 4496.010994][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4496.010994][   T73] 
[ 4496.013790][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4496.013790][   T73]      netdev_get_by_index+0x5e/0x80
[ 4496.013790][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4496.013790][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4496.013790][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4496.013790][   T73]      ipv6_add_addr+0x411/0x2000
[ 4496.013790][   T73]      inet6_addr_add+0x30e/0xa40
[ 4496.013790][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4496.013790][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4496.013790][   T73]      netlink_rcv_skb+0x130/0x360
[ 4496.013790][   T73]      netlink_unicast+0x449/0x710
[ 4496.013790][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4496.013790][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4496.013790][   T73]      ___sys_sendmsg+0xee/0x170
[ 4496.013790][   T73]      __sys_sendmsg+0xcd/0x170
[ 4496.013790][   T73]      do_syscall_64+0xc6/0x1e0
[ 4496.013790][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4496.013790][   T73] 
[ 4496.016477][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4496.016477][   T73]      netdev_get_by_index+0x5e/0x80
[ 4496.016477][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4496.016477][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4496.016477][   T73]      ip6_route_add+0x1c/0x140
[ 4496.016477][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4496.016477][   T73]      addrconf_add_dev+0xe2/0x170
[ 4496.016477][   T73]      inet6_addr_add+0x12f/0xa40
[ 4496.016477][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4496.016477][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4496.016477][   T73]      netlink_rcv_skb+0x130/0x360
[ 4496.016477][   T73]      netlink_unicast+0x449/0x710
[ 4496.016477][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4496.016477][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4496.016477][   T73]      ___sys_sendmsg+0xee/0x170
[ 4496.016477][   T73]      __sys_sendmsg+0xcd/0x170
[ 4496.016477][   T73]      do_syscall_64+0xc6/0x1e0
[ 4496.016477][   T73] 
[ 4496.019166][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4496.019166][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4496.019166][   T73]      ipv6_find_idev+0x102/0x170
[ 4496.019166][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4496.019166][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4496.019166][   T73]      netlink_rcv_skb+0x130/0x360
[ 4496.019166][   T73]      netlink_unicast+0x449/0x710
[ 4496.019166][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4496.019166][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4496.019166][   T73]      ___sys_sendmsg+0xee/0x170
[ 4496.019166][   T73]      __sys_sendmsg+0xcd/0x170
[ 4496.019166][   T73]      do_syscall_64+0xc6/0x1e0
[ 4496.019166][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4496.019166][   T73] 
[ 4496.021272][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4496.021272][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4496.021272][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4496.021272][   T73]      ipv6_find_idev+0x102/0x170
[ 4496.021272][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4496.021272][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4496.021272][   T73]      netlink_rcv_skb+0x130/0x360
[ 4496.021272][   T73]      netlink_unicast+0x449/0x710
[ 4496.021272][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4496.021272][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4496.021272][   T73]      ___sys_sendmsg+0xee/0x170
[ 4496.021272][   T73]      __sys_sendmsg+0xcd/0x170
[ 4496.021272][   T73]      do_syscall_64+0xc6/0x1e0
[ 4496.021272][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4496.021272][   T73] 
[ 4506.039758][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4506.040236][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4506.040236][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4506.040236][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4506.040236][   T73]      fib6_nh_init+0xa22/0x1580
[ 4506.040236][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4506.040236][   T73]      ip6_route_add+0x1c/0x140
[ 4506.040236][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4506.040236][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4506.040236][   T73]      netlink_rcv_skb+0x130/0x360
[ 4506.040236][   T73]      netlink_unicast+0x449/0x710
[ 4506.040236][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4506.040236][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4506.040236][   T73]      ___sys_sendmsg+0xee/0x170
[ 4506.040236][   T73]      __sys_sendmsg+0xcd/0x170
[ 4506.040236][   T73]      do_syscall_64+0xc6/0x1e0
[ 4506.040236][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4506.040236][   T73] 
[ 4506.042175][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4506.042175][   T73]      dst_init+0x84/0x4a0
[ 4506.042175][   T73]      dst_alloc+0x97/0x150
[ 4506.042175][   T73]      ip6_dst_alloc+0x23/0x90
[ 4506.042175][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4506.042175][   T73]      ip6_pol_route+0x56f/0x840
[ 4506.042175][   T73]      fib6_rule_lookup+0x456/0x630
[ 4506.042175][   T73]      ip6_route_input+0x59c/0xa50
[ 4506.042175][   T73]      ipv6_rcv+0x397/0x810
[ 4506.042175][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4506.042175][   T73]      process_backlog+0x101/0x620
[ 4506.042175][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4506.042175][   T73]      net_rx_action+0x495/0xbe0
[ 4506.042175][   T73]      __do_softirq+0x1b5/0x7f6
[ 4506.042175][   T73] 
[ 4506.043857][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4506.043857][   T73]      netdev_get_by_index+0x5e/0x80
[ 4506.043857][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4506.043857][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4506.043857][   T73]      ip6_route_add+0x1c/0x140
[ 4506.043857][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4506.043857][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4506.043857][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4506.043857][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4506.043857][   T73]      netlink_rcv_skb+0x130/0x360
[ 4506.043857][   T73]      netlink_unicast+0x449/0x710
[ 4506.043857][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4506.043857][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4506.043857][   T73]      ___sys_sendmsg+0xee/0x170
[ 4506.043857][   T73]      __sys_sendmsg+0xcd/0x170
[ 4506.043857][   T73]      do_syscall_64+0xc6/0x1e0
[ 4506.043857][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4506.043857][   T73] 
[ 4506.045889][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4506.045889][   T73]      netdev_get_by_index+0x5e/0x80
[ 4506.045889][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4506.045889][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4506.045889][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4506.045889][   T73]      ipv6_add_addr+0x411/0x2000
[ 4506.045889][   T73]      inet6_addr_add+0x30e/0xa40
[ 4506.045889][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4506.045889][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4506.045889][   T73]      netlink_rcv_skb+0x130/0x360
[ 4506.045889][   T73]      netlink_unicast+0x449/0x710
[ 4506.045889][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4506.045889][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4506.045889][   T73]      ___sys_sendmsg+0xee/0x170
[ 4506.045889][   T73]      __sys_sendmsg+0xcd/0x170
[ 4506.045889][   T73]      do_syscall_64+0xc6/0x1e0
[ 4506.045889][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4506.045889][   T73] 
[ 4506.047909][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4506.047909][   T73]      netdev_get_by_index+0x5e/0x80
[ 4506.047909][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4506.047909][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4506.047909][   T73]      ip6_route_add+0x1c/0x140
[ 4506.047909][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4506.047909][   T73]      addrconf_add_dev+0xe2/0x170
[ 4506.047909][   T73]      inet6_addr_add+0x12f/0xa40
[ 4506.047909][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4506.047909][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4506.047909][   T73]      netlink_rcv_skb+0x130/0x360
[ 4506.047909][   T73]      netlink_unicast+0x449/0x710
[ 4506.047909][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4506.047909][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4506.047909][   T73]      ___sys_sendmsg+0xee/0x170
[ 4506.047909][   T73]      __sys_sendmsg+0xcd/0x170
[ 4506.047909][   T73]      do_syscall_64+0xc6/0x1e0
[ 4506.047909][   T73] 
[ 4506.049877][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4506.049877][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4506.049877][   T73]      ipv6_find_idev+0x102/0x170
[ 4506.049877][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4506.049877][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4506.049877][   T73]      netlink_rcv_skb+0x130/0x360
[ 4506.049877][   T73]      netlink_unicast+0x449/0x710
[ 4506.049877][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4506.049877][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4506.049877][   T73]      ___sys_sendmsg+0xee/0x170
[ 4506.049877][   T73]      __sys_sendmsg+0xcd/0x170
[ 4506.049877][   T73]      do_syscall_64+0xc6/0x1e0
[ 4506.049877][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4506.049877][   T73] 
[ 4506.051420][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4506.051420][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4506.051420][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4506.051420][   T73]      ipv6_find_idev+0x102/0x170
[ 4506.051420][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4506.051420][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4506.051420][   T73]      netlink_rcv_skb+0x130/0x360
[ 4506.051420][   T73]      netlink_unicast+0x449/0x710
[ 4506.051420][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4506.051420][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4506.051420][   T73]      ___sys_sendmsg+0xee/0x170
[ 4506.051420][   T73]      __sys_sendmsg+0xcd/0x170
[ 4506.051420][   T73]      do_syscall_64+0xc6/0x1e0
[ 4506.051420][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4506.051420][   T73] 
[ 4506.053115][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4506.053402][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4506.053402][   T73]      netdev_get_by_index+0x5e/0x80
[ 4506.053402][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4506.053402][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4506.053402][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4506.053402][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4506.053402][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4506.053402][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4506.053402][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4506.053402][   T73]      addrconf_dad_begin+0x310/0x670
[ 4506.053402][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4506.053402][   T73]      process_one_work+0x84d/0x18a0
[ 4506.053402][   T73]      worker_thread+0x587/0xd30
[ 4506.053402][   T73]      kthread+0x28a/0x350
[ 4506.053402][   T73]      ret_from_fork+0x31/0x70
[ 4506.053402][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4506.053402][   T73] 
[ 4506.055331][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4506.055331][   T73]      netdev_get_by_index+0x5e/0x80
[ 4506.055331][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4506.055331][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4506.055331][   T73]      ip6_route_add+0x1c/0x140
[ 4506.055331][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4506.055331][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4506.055331][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4506.055331][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4506.055331][   T73]      netlink_rcv_skb+0x130/0x360
[ 4506.055331][   T73]      netlink_unicast+0x449/0x710
[ 4506.055331][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4506.055331][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4506.055331][   T73]      ___sys_sendmsg+0xee/0x170
[ 4506.055331][   T73]      __sys_sendmsg+0xcd/0x170
[ 4506.055331][   T73]      do_syscall_64+0xc6/0x1e0
[ 4506.055331][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4506.055331][   T73] 
[ 4506.057352][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4506.057352][   T73]      netdev_get_by_index+0x5e/0x80
[ 4506.057352][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4506.057352][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4506.057352][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4506.057352][   T73]      ipv6_add_addr+0x411/0x2000
[ 4506.057352][   T73]      inet6_addr_add+0x30e/0xa40
[ 4506.057352][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4506.057352][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4506.057352][   T73]      netlink_rcv_skb+0x130/0x360
[ 4506.057352][   T73]      netlink_unicast+0x449/0x710
[ 4506.057352][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4506.057352][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4506.057352][   T73]      ___sys_sendmsg+0xee/0x170
[ 4506.057352][   T73]      __sys_sendmsg+0xcd/0x170
[ 4506.057352][   T73]      do_syscall_64+0xc6/0x1e0
[ 4506.057352][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4506.057352][   T73] 
[ 4506.059365][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4506.059365][   T73]      netdev_get_by_index+0x5e/0x80
[ 4506.059365][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4506.059365][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4506.059365][   T73]      ip6_route_add+0x1c/0x140
[ 4506.059365][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4506.059365][   T73]      addrconf_add_dev+0xe2/0x170
[ 4506.059365][   T73]      inet6_addr_add+0x12f/0xa40
[ 4506.059365][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4506.059365][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4506.059365][   T73]      netlink_rcv_skb+0x130/0x360
[ 4506.059365][   T73]      netlink_unicast+0x449/0x710
[ 4506.059365][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4506.059365][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4506.059365][   T73]      ___sys_sendmsg+0xee/0x170
[ 4506.059365][   T73]      __sys_sendmsg+0xcd/0x170
[ 4506.059365][   T73]      do_syscall_64+0xc6/0x1e0
[ 4506.059365][   T73] 
[ 4506.061341][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4506.061341][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4506.061341][   T73]      ipv6_find_idev+0x102/0x170
[ 4506.061341][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4506.061341][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4506.061341][   T73]      netlink_rcv_skb+0x130/0x360
[ 4506.061341][   T73]      netlink_unicast+0x449/0x710
[ 4506.061341][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4506.061341][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4506.061341][   T73]      ___sys_sendmsg+0xee/0x170
[ 4506.061341][   T73]      __sys_sendmsg+0xcd/0x170
[ 4506.061341][   T73]      do_syscall_64+0xc6/0x1e0
[ 4506.061341][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4506.061341][   T73] 
[ 4506.062888][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4506.062888][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4506.062888][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4506.062888][   T73]      ipv6_find_idev+0x102/0x170
[ 4506.062888][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4506.062888][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4506.062888][   T73]      netlink_rcv_skb+0x130/0x360
[ 4506.062888][   T73]      netlink_unicast+0x449/0x710
[ 4506.062888][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4506.062888][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4506.062888][   T73]      ___sys_sendmsg+0xee/0x170
[ 4506.062888][   T73]      __sys_sendmsg+0xcd/0x170
[ 4506.062888][   T73]      do_syscall_64+0xc6/0x1e0
[ 4506.062888][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4506.062888][   T73] 
[ 4506.064582][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4506.064869][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4506.064869][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4506.064869][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4506.064869][   T73]      fib6_nh_init+0xa22/0x1580
[ 4506.064869][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4506.064869][   T73]      ip6_route_add+0x1c/0x140
[ 4506.064869][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4506.064869][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4506.064869][   T73]      netlink_rcv_skb+0x130/0x360
[ 4506.064869][   T73]      netlink_unicast+0x449/0x710
[ 4506.064869][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4506.064869][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4506.064869][   T73]      ___sys_sendmsg+0xee/0x170
[ 4506.064869][   T73]      __sys_sendmsg+0xcd/0x170
[ 4506.064869][   T73]      do_syscall_64+0xc6/0x1e0
[ 4506.064869][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4506.064869][   T73] 
[ 4506.066944][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4506.066944][   T73]      dst_init+0x84/0x4a0
[ 4506.066944][   T73]      dst_alloc+0x97/0x150
[ 4506.066944][   T73]      ip6_dst_alloc+0x23/0x90
[ 4506.066944][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4506.066944][   T73]      ip6_pol_route+0x56f/0x840
[ 4506.066944][   T73]      fib6_rule_lookup+0x456/0x630
[ 4506.066944][   T73]      ip6_route_input+0x59c/0xa50
[ 4506.066944][   T73]      ipv6_rcv+0x397/0x810
[ 4506.066944][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4506.066944][   T73]      process_backlog+0x101/0x620
[ 4506.066944][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4506.066944][   T73]      net_rx_action+0x495/0xbe0
[ 4506.066944][   T73]      __do_softirq+0x1b5/0x7f6
[ 4506.066944][   T73] 
[ 4506.068776][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4506.068776][   T73]      netdev_get_by_index+0x5e/0x80
[ 4506.068776][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4506.068776][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4506.068776][   T73]      ip6_route_add+0x1c/0x140
[ 4506.068776][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4506.068776][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4506.068776][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4506.068776][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4506.068776][   T73]      netlink_rcv_skb+0x130/0x360
[ 4506.068776][   T73]      netlink_unicast+0x449/0x710
[ 4506.068776][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4506.068776][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4506.068776][   T73]      ___sys_sendmsg+0xee/0x170
[ 4506.068776][   T73]      __sys_sendmsg+0xcd/0x170
[ 4506.068776][   T73]      do_syscall_64+0xc6/0x1e0
[ 4506.068776][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4506.068776][   T73] 
[ 4506.071105][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4506.071105][   T73]      netdev_get_by_index+0x5e/0x80
[ 4506.071105][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4506.071105][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4506.071105][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4506.071105][   T73]      ipv6_add_addr+0x411/0x2000
[ 4506.071105][   T73]      inet6_addr_add+0x30e/0xa40
[ 4506.071105][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4506.071105][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4506.071105][   T73]      netlink_rcv_skb+0x130/0x360
[ 4506.071105][   T73]      netlink_unicast+0x449/0x710
[ 4506.071105][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4506.071105][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4506.071105][   T73]      ___sys_sendmsg+0xee/0x170
[ 4506.071105][   T73]      __sys_sendmsg+0xcd/0x170
[ 4506.071105][   T73]      do_syscall_64+0xc6/0x1e0
[ 4506.071105][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4506.071105][   T73] 
[ 4506.073347][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4506.073347][   T73]      netdev_get_by_index+0x5e/0x80
[ 4506.073347][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4506.073347][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4506.073347][   T73]      ip6_route_add+0x1c/0x140
[ 4506.073347][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4506.073347][   T73]      addrconf_add_dev+0xe2/0x170
[ 4506.073347][   T73]      inet6_addr_add+0x12f/0xa40
[ 4506.073347][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4506.073347][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4506.073347][   T73]      netlink_rcv_skb+0x130/0x360
[ 4506.073347][   T73]      netlink_unicast+0x449/0x710
[ 4506.073347][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4506.073347][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4506.073347][   T73]      ___sys_sendmsg+0xee/0x170
[ 4506.073347][   T73]      __sys_sendmsg+0xcd/0x170
[ 4506.073347][   T73]      do_syscall_64+0xc6/0x1e0
[ 4506.073347][   T73] 
[ 4506.075508][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4506.075508][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4506.075508][   T73]      ipv6_find_idev+0x102/0x170
[ 4506.075508][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4506.075508][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4506.075508][   T73]      netlink_rcv_skb+0x130/0x360
[ 4506.075508][   T73]      netlink_unicast+0x449/0x710
[ 4506.075508][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4506.075508][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4506.075508][   T73]      ___sys_sendmsg+0xee/0x170
[ 4506.075508][   T73]      __sys_sendmsg+0xcd/0x170
[ 4506.075508][   T73]      do_syscall_64+0xc6/0x1e0
[ 4506.075508][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4506.075508][   T73] 
[ 4506.077267][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4506.077267][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4506.077267][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4506.077267][   T73]      ipv6_find_idev+0x102/0x170
[ 4506.077267][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4506.077267][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4506.077267][   T73]      netlink_rcv_skb+0x130/0x360
[ 4506.077267][   T73]      netlink_unicast+0x449/0x710
[ 4506.077267][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4506.077267][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4506.077267][   T73]      ___sys_sendmsg+0xee/0x170
[ 4506.077267][   T73]      __sys_sendmsg+0xcd/0x170
[ 4506.077267][   T73]      do_syscall_64+0xc6/0x1e0
[ 4506.077267][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4506.077267][   T73] 
[ 4506.079210][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4506.079481][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4506.079481][   T73]      netdev_get_by_index+0x5e/0x80
[ 4506.079481][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4506.079481][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4506.079481][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4506.079481][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4506.079481][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4506.079481][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4506.079481][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4506.079481][   T73]      addrconf_dad_begin+0x310/0x670
[ 4506.079481][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4506.079481][   T73]      process_one_work+0x84d/0x18a0
[ 4506.079481][   T73]      worker_thread+0x587/0xd30
[ 4506.079481][   T73]      kthread+0x28a/0x350
[ 4506.079481][   T73]      ret_from_fork+0x31/0x70
[ 4506.079481][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4506.079481][   T73] 
[ 4506.081736][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4506.081736][   T73]      netdev_get_by_index+0x5e/0x80
[ 4506.081736][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4506.081736][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4506.081736][   T73]      ip6_route_add+0x1c/0x140
[ 4506.081736][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4506.081736][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4506.081736][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4506.081736][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4506.081736][   T73]      netlink_rcv_skb+0x130/0x360
[ 4506.081736][   T73]      netlink_unicast+0x449/0x710
[ 4506.081736][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4506.081736][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4506.081736][   T73]      ___sys_sendmsg+0xee/0x170
[ 4506.081736][   T73]      __sys_sendmsg+0xcd/0x170
[ 4506.081736][   T73]      do_syscall_64+0xc6/0x1e0
[ 4506.081736][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4506.081736][   T73] 
[ 4506.084022][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4506.084022][   T73]      netdev_get_by_index+0x5e/0x80
[ 4506.084022][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4506.084022][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4506.084022][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4506.084022][   T73]      ipv6_add_addr+0x411/0x2000
[ 4506.084022][   T73]      inet6_addr_add+0x30e/0xa40
[ 4506.084022][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4506.084022][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4506.084022][   T73]      netlink_rcv_skb+0x130/0x360
[ 4506.084022][   T73]      netlink_unicast+0x449/0x710
[ 4506.084022][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4506.084022][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4506.084022][   T73]      ___sys_sendmsg+0xee/0x170
[ 4506.084022][   T73]      __sys_sendmsg+0xcd/0x170
[ 4506.084022][   T73]      do_syscall_64+0xc6/0x1e0
[ 4506.084022][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4506.084022][   T73] 
[ 4506.086212][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4506.086212][   T73]      netdev_get_by_index+0x5e/0x80
[ 4506.086212][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4506.086212][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4506.086212][   T73]      ip6_route_add+0x1c/0x140
[ 4506.086212][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4506.086212][   T73]      addrconf_add_dev+0xe2/0x170
[ 4506.086212][   T73]      inet6_addr_add+0x12f/0xa40
[ 4506.086212][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4506.086212][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4506.086212][   T73]      netlink_rcv_skb+0x130/0x360
[ 4506.086212][   T73]      netlink_unicast+0x449/0x710
[ 4506.086212][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4506.086212][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4506.086212][   T73]      ___sys_sendmsg+0xee/0x170
[ 4506.086212][   T73]      __sys_sendmsg+0xcd/0x170
[ 4506.086212][   T73]      do_syscall_64+0xc6/0x1e0
[ 4506.086212][   T73] 
[ 4506.088434][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4506.088434][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4506.088434][   T73]      ipv6_find_idev+0x102/0x170
[ 4506.088434][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4506.088434][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4506.088434][   T73]      netlink_rcv_skb+0x130/0x360
[ 4506.088434][   T73]      netlink_unicast+0x449/0x710
[ 4506.088434][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4506.088434][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4506.088434][   T73]      ___sys_sendmsg+0xee/0x170
[ 4506.088434][   T73]      __sys_sendmsg+0xcd/0x170
[ 4506.088434][   T73]      do_syscall_64+0xc6/0x1e0
[ 4506.088434][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4506.088434][   T73] 
[ 4506.090239][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4506.090239][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4506.090239][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4506.090239][   T73]      ipv6_find_idev+0x102/0x170
[ 4506.090239][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4506.090239][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4506.090239][   T73]      netlink_rcv_skb+0x130/0x360
[ 4506.090239][   T73]      netlink_unicast+0x449/0x710
[ 4506.090239][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4506.090239][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4506.090239][   T73]      ___sys_sendmsg+0xee/0x170
[ 4506.090239][   T73]      __sys_sendmsg+0xcd/0x170
[ 4506.090239][   T73]      do_syscall_64+0xc6/0x1e0
[ 4506.090239][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4506.090239][   T73] 
[ 4516.135758][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4516.136174][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4516.136174][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4516.136174][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4516.136174][   T73]      fib6_nh_init+0xa22/0x1580
[ 4516.136174][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4516.136174][   T73]      ip6_route_add+0x1c/0x140
[ 4516.136174][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4516.136174][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4516.136174][   T73]      netlink_rcv_skb+0x130/0x360
[ 4516.136174][   T73]      netlink_unicast+0x449/0x710
[ 4516.136174][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4516.136174][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4516.136174][   T73]      ___sys_sendmsg+0xee/0x170
[ 4516.136174][   T73]      __sys_sendmsg+0xcd/0x170
[ 4516.136174][   T73]      do_syscall_64+0xc6/0x1e0
[ 4516.136174][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4516.136174][   T73] 
[ 4516.138140][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4516.138140][   T73]      dst_init+0x84/0x4a0
[ 4516.138140][   T73]      dst_alloc+0x97/0x150
[ 4516.138140][   T73]      ip6_dst_alloc+0x23/0x90
[ 4516.138140][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4516.138140][   T73]      ip6_pol_route+0x56f/0x840
[ 4516.138140][   T73]      fib6_rule_lookup+0x456/0x630
[ 4516.138140][   T73]      ip6_route_input+0x59c/0xa50
[ 4516.138140][   T73]      ipv6_rcv+0x397/0x810
[ 4516.138140][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4516.138140][   T73]      process_backlog+0x101/0x620
[ 4516.138140][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4516.138140][   T73]      net_rx_action+0x495/0xbe0
[ 4516.138140][   T73]      __do_softirq+0x1b5/0x7f6
[ 4516.138140][   T73] 
[ 4516.139806][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4516.139806][   T73]      netdev_get_by_index+0x5e/0x80
[ 4516.139806][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4516.139806][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4516.139806][   T73]      ip6_route_add+0x1c/0x140
[ 4516.139806][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4516.139806][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4516.139806][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4516.139806][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4516.139806][   T73]      netlink_rcv_skb+0x130/0x360
[ 4516.139806][   T73]      netlink_unicast+0x449/0x710
[ 4516.139806][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4516.139806][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4516.139806][   T73]      ___sys_sendmsg+0xee/0x170
[ 4516.139806][   T73]      __sys_sendmsg+0xcd/0x170
[ 4516.139806][   T73]      do_syscall_64+0xc6/0x1e0
[ 4516.139806][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4516.139806][   T73] 
[ 4516.141825][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4516.141825][   T73]      netdev_get_by_index+0x5e/0x80
[ 4516.141825][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4516.141825][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4516.141825][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4516.141825][   T73]      ipv6_add_addr+0x411/0x2000
[ 4516.141825][   T73]      inet6_addr_add+0x30e/0xa40
[ 4516.141825][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4516.141825][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4516.141825][   T73]      netlink_rcv_skb+0x130/0x360
[ 4516.141825][   T73]      netlink_unicast+0x449/0x710
[ 4516.141825][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4516.141825][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4516.141825][   T73]      ___sys_sendmsg+0xee/0x170
[ 4516.141825][   T73]      __sys_sendmsg+0xcd/0x170
[ 4516.141825][   T73]      do_syscall_64+0xc6/0x1e0
[ 4516.141825][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4516.141825][   T73] 
[ 4516.143871][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4516.143871][   T73]      netdev_get_by_index+0x5e/0x80
[ 4516.143871][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4516.143871][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4516.143871][   T73]      ip6_route_add+0x1c/0x140
[ 4516.143871][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4516.143871][   T73]      addrconf_add_dev+0xe2/0x170
[ 4516.143871][   T73]      inet6_addr_add+0x12f/0xa40
[ 4516.143871][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4516.143871][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4516.143871][   T73]      netlink_rcv_skb+0x130/0x360
[ 4516.143871][   T73]      netlink_unicast+0x449/0x710
[ 4516.143871][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4516.143871][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4516.143871][   T73]      ___sys_sendmsg+0xee/0x170
[ 4516.143871][   T73]      __sys_sendmsg+0xcd/0x170
[ 4516.143871][   T73]      do_syscall_64+0xc6/0x1e0
[ 4516.143871][   T73] 
[ 4516.145880][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4516.145880][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4516.145880][   T73]      ipv6_find_idev+0x102/0x170
[ 4516.145880][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4516.145880][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4516.145880][   T73]      netlink_rcv_skb+0x130/0x360
[ 4516.145880][   T73]      netlink_unicast+0x449/0x710
[ 4516.145880][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4516.145880][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4516.145880][   T73]      ___sys_sendmsg+0xee/0x170
[ 4516.145880][   T73]      __sys_sendmsg+0xcd/0x170
[ 4516.145880][   T73]      do_syscall_64+0xc6/0x1e0
[ 4516.145880][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4516.145880][   T73] 
[ 4516.147434][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4516.147434][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4516.147434][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4516.147434][   T73]      ipv6_find_idev+0x102/0x170
[ 4516.147434][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4516.147434][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4516.147434][   T73]      netlink_rcv_skb+0x130/0x360
[ 4516.147434][   T73]      netlink_unicast+0x449/0x710
[ 4516.147434][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4516.147434][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4516.147434][   T73]      ___sys_sendmsg+0xee/0x170
[ 4516.147434][   T73]      __sys_sendmsg+0xcd/0x170
[ 4516.147434][   T73]      do_syscall_64+0xc6/0x1e0
[ 4516.147434][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4516.147434][   T73] 
[ 4516.149134][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4516.149435][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4516.149435][   T73]      netdev_get_by_index+0x5e/0x80
[ 4516.149435][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4516.149435][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4516.149435][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4516.149435][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4516.149435][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4516.149435][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4516.149435][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4516.149435][   T73]      addrconf_dad_begin+0x310/0x670
[ 4516.149435][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4516.149435][   T73]      process_one_work+0x84d/0x18a0
[ 4516.149435][   T73]      worker_thread+0x587/0xd30
[ 4516.149435][   T73]      kthread+0x28a/0x350
[ 4516.149435][   T73]      ret_from_fork+0x31/0x70
[ 4516.149435][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4516.149435][   T73] 
[ 4516.151353][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4516.151353][   T73]      netdev_get_by_index+0x5e/0x80
[ 4516.151353][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4516.151353][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4516.151353][   T73]      ip6_route_add+0x1c/0x140
[ 4516.151353][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4516.151353][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4516.151353][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4516.151353][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4516.151353][   T73]      netlink_rcv_skb+0x130/0x360
[ 4516.151353][   T73]      netlink_unicast+0x449/0x710
[ 4516.151353][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4516.151353][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4516.151353][   T73]      ___sys_sendmsg+0xee/0x170
[ 4516.151353][   T73]      __sys_sendmsg+0xcd/0x170
[ 4516.151353][   T73]      do_syscall_64+0xc6/0x1e0
[ 4516.151353][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4516.151353][   T73] 
[ 4516.153355][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4516.153355][   T73]      netdev_get_by_index+0x5e/0x80
[ 4516.153355][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4516.153355][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4516.153355][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4516.153355][   T73]      ipv6_add_addr+0x411/0x2000
[ 4516.153355][   T73]      inet6_addr_add+0x30e/0xa40
[ 4516.153355][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4516.153355][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4516.153355][   T73]      netlink_rcv_skb+0x130/0x360
[ 4516.153355][   T73]      netlink_unicast+0x449/0x710
[ 4516.153355][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4516.153355][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4516.153355][   T73]      ___sys_sendmsg+0xee/0x170
[ 4516.153355][   T73]      __sys_sendmsg+0xcd/0x170
[ 4516.153355][   T73]      do_syscall_64+0xc6/0x1e0
[ 4516.153355][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4516.153355][   T73] 
[ 4516.155371][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4516.155371][   T73]      netdev_get_by_index+0x5e/0x80
[ 4516.155371][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4516.155371][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4516.155371][   T73]      ip6_route_add+0x1c/0x140
[ 4516.155371][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4516.155371][   T73]      addrconf_add_dev+0xe2/0x170
[ 4516.155371][   T73]      inet6_addr_add+0x12f/0xa40
[ 4516.155371][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4516.155371][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4516.155371][   T73]      netlink_rcv_skb+0x130/0x360
[ 4516.155371][   T73]      netlink_unicast+0x449/0x710
[ 4516.155371][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4516.155371][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4516.155371][   T73]      ___sys_sendmsg+0xee/0x170
[ 4516.155371][   T73]      __sys_sendmsg+0xcd/0x170
[ 4516.155371][   T73]      do_syscall_64+0xc6/0x1e0
[ 4516.155371][   T73] 
[ 4516.157344][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4516.157344][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4516.157344][   T73]      ipv6_find_idev+0x102/0x170
[ 4516.157344][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4516.157344][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4516.157344][   T73]      netlink_rcv_skb+0x130/0x360
[ 4516.157344][   T73]      netlink_unicast+0x449/0x710
[ 4516.157344][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4516.157344][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4516.157344][   T73]      ___sys_sendmsg+0xee/0x170
[ 4516.157344][   T73]      __sys_sendmsg+0xcd/0x170
[ 4516.157344][   T73]      do_syscall_64+0xc6/0x1e0
[ 4516.157344][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4516.157344][   T73] 
[ 4516.158888][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4516.158888][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4516.158888][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4516.158888][   T73]      ipv6_find_idev+0x102/0x170
[ 4516.158888][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4516.158888][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4516.158888][   T73]      netlink_rcv_skb+0x130/0x360
[ 4516.158888][   T73]      netlink_unicast+0x449/0x710
[ 4516.158888][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4516.158888][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4516.158888][   T73]      ___sys_sendmsg+0xee/0x170
[ 4516.158888][   T73]      __sys_sendmsg+0xcd/0x170
[ 4516.158888][   T73]      do_syscall_64+0xc6/0x1e0
[ 4516.158888][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4516.158888][   T73] 
[ 4516.160593][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4516.160890][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4516.160890][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4516.160890][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4516.160890][   T73]      fib6_nh_init+0xa22/0x1580
[ 4516.160890][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4516.160890][   T73]      ip6_route_add+0x1c/0x140
[ 4516.160890][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4516.160890][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4516.160890][   T73]      netlink_rcv_skb+0x130/0x360
[ 4516.160890][   T73]      netlink_unicast+0x449/0x710
[ 4516.160890][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4516.160890][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4516.160890][   T73]      ___sys_sendmsg+0xee/0x170
[ 4516.160890][   T73]      __sys_sendmsg+0xcd/0x170
[ 4516.160890][   T73]      do_syscall_64+0xc6/0x1e0
[ 4516.160890][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4516.160890][   T73] 
[ 4516.162970][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4516.162970][   T73]      dst_init+0x84/0x4a0
[ 4516.162970][   T73]      dst_alloc+0x97/0x150
[ 4516.162970][   T73]      ip6_dst_alloc+0x23/0x90
[ 4516.162970][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4516.162970][   T73]      ip6_pol_route+0x56f/0x840
[ 4516.162970][   T73]      fib6_rule_lookup+0x456/0x630
[ 4516.162970][   T73]      ip6_route_input+0x59c/0xa50
[ 4516.162970][   T73]      ipv6_rcv+0x397/0x810
[ 4516.162970][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4516.162970][   T73]      process_backlog+0x101/0x620
[ 4516.162970][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4516.162970][   T73]      net_rx_action+0x495/0xbe0
[ 4516.162970][   T73]      __do_softirq+0x1b5/0x7f6
[ 4516.162970][   T73] 
[ 4516.164809][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4516.164809][   T73]      netdev_get_by_index+0x5e/0x80
[ 4516.164809][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4516.164809][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4516.164809][   T73]      ip6_route_add+0x1c/0x140
[ 4516.164809][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4516.164809][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4516.164809][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4516.164809][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4516.164809][   T73]      netlink_rcv_skb+0x130/0x360
[ 4516.164809][   T73]      netlink_unicast+0x449/0x710
[ 4516.164809][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4516.164809][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4516.164809][   T73]      ___sys_sendmsg+0xee/0x170
[ 4516.164809][   T73]      __sys_sendmsg+0xcd/0x170
[ 4516.164809][   T73]      do_syscall_64+0xc6/0x1e0
[ 4516.164809][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4516.164809][   T73] 
[ 4516.167064][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4516.167064][   T73]      netdev_get_by_index+0x5e/0x80
[ 4516.167064][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4516.167064][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4516.167064][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4516.167064][   T73]      ipv6_add_addr+0x411/0x2000
[ 4516.167064][   T73]      inet6_addr_add+0x30e/0xa40
[ 4516.167064][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4516.167064][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4516.167064][   T73]      netlink_rcv_skb+0x130/0x360
[ 4516.167064][   T73]      netlink_unicast+0x449/0x710
[ 4516.167064][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4516.167064][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4516.167064][   T73]      ___sys_sendmsg+0xee/0x170
[ 4516.167064][   T73]      __sys_sendmsg+0xcd/0x170
[ 4516.167064][   T73]      do_syscall_64+0xc6/0x1e0
[ 4516.167064][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4516.167064][   T73] 
[ 4516.169349][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4516.169349][   T73]      netdev_get_by_index+0x5e/0x80
[ 4516.169349][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4516.169349][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4516.169349][   T73]      ip6_route_add+0x1c/0x140
[ 4516.169349][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4516.169349][   T73]      addrconf_add_dev+0xe2/0x170
[ 4516.169349][   T73]      inet6_addr_add+0x12f/0xa40
[ 4516.169349][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4516.169349][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4516.169349][   T73]      netlink_rcv_skb+0x130/0x360
[ 4516.169349][   T73]      netlink_unicast+0x449/0x710
[ 4516.169349][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4516.169349][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4516.169349][   T73]      ___sys_sendmsg+0xee/0x170
[ 4516.169349][   T73]      __sys_sendmsg+0xcd/0x170
[ 4516.169349][   T73]      do_syscall_64+0xc6/0x1e0
[ 4516.169349][   T73] 
[ 4516.171517][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4516.171517][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4516.171517][   T73]      ipv6_find_idev+0x102/0x170
[ 4516.171517][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4516.171517][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4516.171517][   T73]      netlink_rcv_skb+0x130/0x360
[ 4516.171517][   T73]      netlink_unicast+0x449/0x710
[ 4516.171517][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4516.171517][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4516.171517][   T73]      ___sys_sendmsg+0xee/0x170
[ 4516.171517][   T73]      __sys_sendmsg+0xcd/0x170
[ 4516.171517][   T73]      do_syscall_64+0xc6/0x1e0
[ 4516.171517][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4516.171517][   T73] 
[ 4516.173315][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4516.173315][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4516.173315][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4516.173315][   T73]      ipv6_find_idev+0x102/0x170
[ 4516.173315][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4516.173315][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4516.173315][   T73]      netlink_rcv_skb+0x130/0x360
[ 4516.173315][   T73]      netlink_unicast+0x449/0x710
[ 4516.173315][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4516.173315][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4516.173315][   T73]      ___sys_sendmsg+0xee/0x170
[ 4516.173315][   T73]      __sys_sendmsg+0xcd/0x170
[ 4516.173315][   T73]      do_syscall_64+0xc6/0x1e0
[ 4516.173315][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4516.173315][   T73] 
[ 4516.175259][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4516.175537][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4516.175537][   T73]      netdev_get_by_index+0x5e/0x80
[ 4516.175537][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4516.175537][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4516.175537][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4516.175537][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4516.175537][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4516.175537][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4516.175537][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4516.175537][   T73]      addrconf_dad_begin+0x310/0x670
[ 4516.175537][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4516.175537][   T73]      process_one_work+0x84d/0x18a0
[ 4516.175537][   T73]      worker_thread+0x587/0xd30
[ 4516.175537][   T73]      kthread+0x28a/0x350
[ 4516.175537][   T73]      ret_from_fork+0x31/0x70
[ 4516.175537][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4516.175537][   T73] 
[ 4516.177713][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4516.177713][   T73]      netdev_get_by_index+0x5e/0x80
[ 4516.177713][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4516.177713][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4516.177713][   T73]      ip6_route_add+0x1c/0x140
[ 4516.177713][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4516.177713][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4516.177713][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4516.177713][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4516.177713][   T73]      netlink_rcv_skb+0x130/0x360
[ 4516.177713][   T73]      netlink_unicast+0x449/0x710
[ 4516.177713][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4516.177713][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4516.177713][   T73]      ___sys_sendmsg+0xee/0x170
[ 4516.177713][   T73]      __sys_sendmsg+0xcd/0x170
[ 4516.177713][   T73]      do_syscall_64+0xc6/0x1e0
[ 4516.177713][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4516.177713][   T73] 
[ 4516.179911][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4516.179911][   T73]      netdev_get_by_index+0x5e/0x80
[ 4516.179911][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4516.179911][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4516.179911][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4516.179911][   T73]      ipv6_add_addr+0x411/0x2000
[ 4516.179911][   T73]      inet6_addr_add+0x30e/0xa40
[ 4516.179911][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4516.179911][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4516.179911][   T73]      netlink_rcv_skb+0x130/0x360
[ 4516.179911][   T73]      netlink_unicast+0x449/0x710
[ 4516.179911][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4516.179911][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4516.179911][   T73]      ___sys_sendmsg+0xee/0x170
[ 4516.179911][   T73]      __sys_sendmsg+0xcd/0x170
[ 4516.179911][   T73]      do_syscall_64+0xc6/0x1e0
[ 4516.179911][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4516.179911][   T73] 
[ 4516.182760][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4516.182760][   T73]      netdev_get_by_index+0x5e/0x80
[ 4516.182760][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4516.182760][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4516.182760][   T73]      ip6_route_add+0x1c/0x140
[ 4516.182760][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4516.182760][   T73]      addrconf_add_dev+0xe2/0x170
[ 4516.182760][   T73]      inet6_addr_add+0x12f/0xa40
[ 4516.182760][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4516.182760][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4516.182760][   T73]      netlink_rcv_skb+0x130/0x360
[ 4516.182760][   T73]      netlink_unicast+0x449/0x710
[ 4516.182760][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4516.182760][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4516.182760][   T73]      ___sys_sendmsg+0xee/0x170
[ 4516.182760][   T73]      __sys_sendmsg+0xcd/0x170
[ 4516.182760][   T73]      do_syscall_64+0xc6/0x1e0
[ 4516.182760][   T73] 
[ 4516.184975][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4516.184975][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4516.184975][   T73]      ipv6_find_idev+0x102/0x170
[ 4516.184975][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4516.184975][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4516.184975][   T73]      netlink_rcv_skb+0x130/0x360
[ 4516.184975][   T73]      netlink_unicast+0x449/0x710
[ 4516.184975][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4516.184975][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4516.184975][   T73]      ___sys_sendmsg+0xee/0x170
[ 4516.184975][   T73]      __sys_sendmsg+0xcd/0x170
[ 4516.184975][   T73]      do_syscall_64+0xc6/0x1e0
[ 4516.184975][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4516.184975][   T73] 
[ 4516.186701][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4516.186701][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4516.186701][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4516.186701][   T73]      ipv6_find_idev+0x102/0x170
[ 4516.186701][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4516.186701][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4516.186701][   T73]      netlink_rcv_skb+0x130/0x360
[ 4516.186701][   T73]      netlink_unicast+0x449/0x710
[ 4516.186701][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4516.186701][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4516.186701][   T73]      ___sys_sendmsg+0xee/0x170
[ 4516.186701][   T73]      __sys_sendmsg+0xcd/0x170
[ 4516.186701][   T73]      do_syscall_64+0xc6/0x1e0
[ 4516.186701][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4516.186701][   T73] 
[ 4526.423732][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4526.424200][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4526.424200][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4526.424200][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4526.424200][   T73]      fib6_nh_init+0xa22/0x1580
[ 4526.424200][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4526.424200][   T73]      ip6_route_add+0x1c/0x140
[ 4526.424200][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4526.424200][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4526.424200][   T73]      netlink_rcv_skb+0x130/0x360
[ 4526.424200][   T73]      netlink_unicast+0x449/0x710
[ 4526.424200][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4526.424200][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4526.424200][   T73]      ___sys_sendmsg+0xee/0x170
[ 4526.424200][   T73]      __sys_sendmsg+0xcd/0x170
[ 4526.424200][   T73]      do_syscall_64+0xc6/0x1e0
[ 4526.424200][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4526.424200][   T73] 
[ 4526.426097][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4526.426097][   T73]      dst_init+0x84/0x4a0
[ 4526.426097][   T73]      dst_alloc+0x97/0x150
[ 4526.426097][   T73]      ip6_dst_alloc+0x23/0x90
[ 4526.426097][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4526.426097][   T73]      ip6_pol_route+0x56f/0x840
[ 4526.426097][   T73]      fib6_rule_lookup+0x456/0x630
[ 4526.426097][   T73]      ip6_route_input+0x59c/0xa50
[ 4526.426097][   T73]      ipv6_rcv+0x397/0x810
[ 4526.426097][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4526.426097][   T73]      process_backlog+0x101/0x620
[ 4526.426097][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4526.426097][   T73]      net_rx_action+0x495/0xbe0
[ 4526.426097][   T73]      __do_softirq+0x1b5/0x7f6
[ 4526.426097][   T73] 
[ 4526.427878][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4526.427878][   T73]      netdev_get_by_index+0x5e/0x80
[ 4526.427878][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4526.427878][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4526.427878][   T73]      ip6_route_add+0x1c/0x140
[ 4526.427878][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4526.427878][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4526.427878][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4526.427878][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4526.427878][   T73]      netlink_rcv_skb+0x130/0x360
[ 4526.427878][   T73]      netlink_unicast+0x449/0x710
[ 4526.427878][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4526.427878][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4526.427878][   T73]      ___sys_sendmsg+0xee/0x170
[ 4526.427878][   T73]      __sys_sendmsg+0xcd/0x170
[ 4526.427878][   T73]      do_syscall_64+0xc6/0x1e0
[ 4526.427878][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4526.427878][   T73] 
[ 4526.429894][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4526.429894][   T73]      netdev_get_by_index+0x5e/0x80
[ 4526.429894][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4526.429894][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4526.429894][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4526.429894][   T73]      ipv6_add_addr+0x411/0x2000
[ 4526.429894][   T73]      inet6_addr_add+0x30e/0xa40
[ 4526.429894][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4526.429894][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4526.429894][   T73]      netlink_rcv_skb+0x130/0x360
[ 4526.429894][   T73]      netlink_unicast+0x449/0x710
[ 4526.429894][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4526.429894][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4526.429894][   T73]      ___sys_sendmsg+0xee/0x170
[ 4526.429894][   T73]      __sys_sendmsg+0xcd/0x170
[ 4526.429894][   T73]      do_syscall_64+0xc6/0x1e0
[ 4526.429894][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4526.429894][   T73] 
[ 4526.434281][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4526.434281][   T73]      netdev_get_by_index+0x5e/0x80
[ 4526.434281][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4526.434281][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4526.434281][   T73]      ip6_route_add+0x1c/0x140
[ 4526.434281][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4526.434281][   T73]      addrconf_add_dev+0xe2/0x170
[ 4526.434281][   T73]      inet6_addr_add+0x12f/0xa40
[ 4526.434281][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4526.434281][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4526.434281][   T73]      netlink_rcv_skb+0x130/0x360
[ 4526.434281][   T73]      netlink_unicast+0x449/0x710
[ 4526.434281][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4526.434281][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4526.434281][   T73]      ___sys_sendmsg+0xee/0x170
[ 4526.434281][   T73]      __sys_sendmsg+0xcd/0x170
[ 4526.434281][   T73]      do_syscall_64+0xc6/0x1e0
[ 4526.434281][   T73] 
[ 4526.436273][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4526.436273][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4526.436273][   T73]      ipv6_find_idev+0x102/0x170
[ 4526.436273][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4526.436273][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4526.436273][   T73]      netlink_rcv_skb+0x130/0x360
[ 4526.436273][   T73]      netlink_unicast+0x449/0x710
[ 4526.436273][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4526.436273][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4526.436273][   T73]      ___sys_sendmsg+0xee/0x170
[ 4526.436273][   T73]      __sys_sendmsg+0xcd/0x170
[ 4526.436273][   T73]      do_syscall_64+0xc6/0x1e0
[ 4526.436273][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4526.436273][   T73] 
[ 4526.437824][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4526.437824][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4526.437824][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4526.437824][   T73]      ipv6_find_idev+0x102/0x170
[ 4526.437824][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4526.437824][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4526.437824][   T73]      netlink_rcv_skb+0x130/0x360
[ 4526.437824][   T73]      netlink_unicast+0x449/0x710
[ 4526.437824][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4526.437824][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4526.437824][   T73]      ___sys_sendmsg+0xee/0x170
[ 4526.437824][   T73]      __sys_sendmsg+0xcd/0x170
[ 4526.437824][   T73]      do_syscall_64+0xc6/0x1e0
[ 4526.437824][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4526.437824][   T73] 
[ 4526.439559][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4526.439867][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4526.439867][   T73]      netdev_get_by_index+0x5e/0x80
[ 4526.439867][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4526.439867][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4526.439867][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4526.439867][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4526.439867][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4526.439867][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4526.439867][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4526.439867][   T73]      addrconf_dad_begin+0x310/0x670
[ 4526.439867][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4526.439867][   T73]      process_one_work+0x84d/0x18a0
[ 4526.439867][   T73]      worker_thread+0x587/0xd30
[ 4526.439867][   T73]      kthread+0x28a/0x350
[ 4526.439867][   T73]      ret_from_fork+0x31/0x70
[ 4526.439867][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4526.439867][   T73] 
[ 4526.441806][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4526.441806][   T73]      netdev_get_by_index+0x5e/0x80
[ 4526.441806][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4526.441806][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4526.441806][   T73]      ip6_route_add+0x1c/0x140
[ 4526.441806][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4526.441806][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4526.441806][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4526.441806][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4526.441806][   T73]      netlink_rcv_skb+0x130/0x360
[ 4526.441806][   T73]      netlink_unicast+0x449/0x710
[ 4526.441806][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4526.441806][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4526.441806][   T73]      ___sys_sendmsg+0xee/0x170
[ 4526.441806][   T73]      __sys_sendmsg+0xcd/0x170
[ 4526.441806][   T73]      do_syscall_64+0xc6/0x1e0
[ 4526.441806][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4526.441806][   T73] 
[ 4526.443822][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4526.443822][   T73]      netdev_get_by_index+0x5e/0x80
[ 4526.443822][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4526.443822][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4526.443822][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4526.443822][   T73]      ipv6_add_addr+0x411/0x2000
[ 4526.443822][   T73]      inet6_addr_add+0x30e/0xa40
[ 4526.443822][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4526.443822][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4526.443822][   T73]      netlink_rcv_skb+0x130/0x360
[ 4526.443822][   T73]      netlink_unicast+0x449/0x710
[ 4526.443822][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4526.443822][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4526.443822][   T73]      ___sys_sendmsg+0xee/0x170
[ 4526.443822][   T73]      __sys_sendmsg+0xcd/0x170
[ 4526.443822][   T73]      do_syscall_64+0xc6/0x1e0
[ 4526.443822][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4526.443822][   T73] 
[ 4526.445833][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4526.445833][   T73]      netdev_get_by_index+0x5e/0x80
[ 4526.445833][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4526.445833][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4526.445833][   T73]      ip6_route_add+0x1c/0x140
[ 4526.445833][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4526.445833][   T73]      addrconf_add_dev+0xe2/0x170
[ 4526.445833][   T73]      inet6_addr_add+0x12f/0xa40
[ 4526.445833][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4526.445833][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4526.445833][   T73]      netlink_rcv_skb+0x130/0x360
[ 4526.445833][   T73]      netlink_unicast+0x449/0x710
[ 4526.445833][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4526.445833][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4526.445833][   T73]      ___sys_sendmsg+0xee/0x170
[ 4526.445833][   T73]      __sys_sendmsg+0xcd/0x170
[ 4526.445833][   T73]      do_syscall_64+0xc6/0x1e0
[ 4526.445833][   T73] 
[ 4526.447808][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4526.447808][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4526.447808][   T73]      ipv6_find_idev+0x102/0x170
[ 4526.447808][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4526.447808][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4526.447808][   T73]      netlink_rcv_skb+0x130/0x360
[ 4526.447808][   T73]      netlink_unicast+0x449/0x710
[ 4526.447808][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4526.447808][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4526.447808][   T73]      ___sys_sendmsg+0xee/0x170
[ 4526.447808][   T73]      __sys_sendmsg+0xcd/0x170
[ 4526.447808][   T73]      do_syscall_64+0xc6/0x1e0
[ 4526.447808][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4526.447808][   T73] 
[ 4526.449375][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4526.449375][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4526.449375][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4526.449375][   T73]      ipv6_find_idev+0x102/0x170
[ 4526.449375][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4526.449375][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4526.449375][   T73]      netlink_rcv_skb+0x130/0x360
[ 4526.449375][   T73]      netlink_unicast+0x449/0x710
[ 4526.449375][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4526.449375][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4526.449375][   T73]      ___sys_sendmsg+0xee/0x170
[ 4526.449375][   T73]      __sys_sendmsg+0xcd/0x170
[ 4526.449375][   T73]      do_syscall_64+0xc6/0x1e0
[ 4526.449375][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4526.449375][   T73] 
[ 4526.451079][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4526.451358][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4526.451358][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4526.451358][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4526.451358][   T73]      fib6_nh_init+0xa22/0x1580
[ 4526.451358][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4526.451358][   T73]      ip6_route_add+0x1c/0x140
[ 4526.451358][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4526.451358][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4526.451358][   T73]      netlink_rcv_skb+0x130/0x360
[ 4526.451358][   T73]      netlink_unicast+0x449/0x710
[ 4526.451358][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4526.451358][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4526.451358][   T73]      ___sys_sendmsg+0xee/0x170
[ 4526.451358][   T73]      __sys_sendmsg+0xcd/0x170
[ 4526.451358][   T73]      do_syscall_64+0xc6/0x1e0
[ 4526.451358][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4526.451358][   T73] 
[ 4526.453438][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4526.453438][   T73]      dst_init+0x84/0x4a0
[ 4526.453438][   T73]      dst_alloc+0x97/0x150
[ 4526.453438][   T73]      ip6_dst_alloc+0x23/0x90
[ 4526.453438][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4526.453438][   T73]      ip6_pol_route+0x56f/0x840
[ 4526.453438][   T73]      fib6_rule_lookup+0x456/0x630
[ 4526.453438][   T73]      ip6_route_input+0x59c/0xa50
[ 4526.453438][   T73]      ipv6_rcv+0x397/0x810
[ 4526.453438][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4526.453438][   T73]      process_backlog+0x101/0x620
[ 4526.453438][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4526.453438][   T73]      net_rx_action+0x495/0xbe0
[ 4526.453438][   T73]      __do_softirq+0x1b5/0x7f6
[ 4526.453438][   T73] 
[ 4526.455295][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4526.455295][   T73]      netdev_get_by_index+0x5e/0x80
[ 4526.455295][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4526.455295][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4526.455295][   T73]      ip6_route_add+0x1c/0x140
[ 4526.455295][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4526.455295][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4526.455295][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4526.455295][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4526.455295][   T73]      netlink_rcv_skb+0x130/0x360
[ 4526.455295][   T73]      netlink_unicast+0x449/0x710
[ 4526.455295][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4526.455295][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4526.455295][   T73]      ___sys_sendmsg+0xee/0x170
[ 4526.455295][   T73]      __sys_sendmsg+0xcd/0x170
[ 4526.455295][   T73]      do_syscall_64+0xc6/0x1e0
[ 4526.455295][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4526.455295][   T73] 
[ 4526.457562][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4526.457562][   T73]      netdev_get_by_index+0x5e/0x80
[ 4526.457562][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4526.457562][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4526.457562][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4526.457562][   T73]      ipv6_add_addr+0x411/0x2000
[ 4526.457562][   T73]      inet6_addr_add+0x30e/0xa40
[ 4526.457562][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4526.457562][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4526.457562][   T73]      netlink_rcv_skb+0x130/0x360
[ 4526.457562][   T73]      netlink_unicast+0x449/0x710
[ 4526.457562][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4526.457562][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4526.457562][   T73]      ___sys_sendmsg+0xee/0x170
[ 4526.457562][   T73]      __sys_sendmsg+0xcd/0x170
[ 4526.457562][   T73]      do_syscall_64+0xc6/0x1e0
[ 4526.457562][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4526.457562][   T73] 
[ 4526.459895][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4526.459895][   T73]      netdev_get_by_index+0x5e/0x80
[ 4526.459895][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4526.459895][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4526.459895][   T73]      ip6_route_add+0x1c/0x140
[ 4526.459895][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4526.459895][   T73]      addrconf_add_dev+0xe2/0x170
[ 4526.459895][   T73]      inet6_addr_add+0x12f/0xa40
[ 4526.459895][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4526.459895][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4526.459895][   T73]      netlink_rcv_skb+0x130/0x360
[ 4526.459895][   T73]      netlink_unicast+0x449/0x710
[ 4526.459895][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4526.459895][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4526.459895][   T73]      ___sys_sendmsg+0xee/0x170
[ 4526.459895][   T73]      __sys_sendmsg+0xcd/0x170
[ 4526.459895][   T73]      do_syscall_64+0xc6/0x1e0
[ 4526.459895][   T73] 
[ 4526.462059][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4526.462059][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4526.462059][   T73]      ipv6_find_idev+0x102/0x170
[ 4526.462059][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4526.462059][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4526.462059][   T73]      netlink_rcv_skb+0x130/0x360
[ 4526.462059][   T73]      netlink_unicast+0x449/0x710
[ 4526.462059][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4526.462059][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4526.462059][   T73]      ___sys_sendmsg+0xee/0x170
[ 4526.462059][   T73]      __sys_sendmsg+0xcd/0x170
[ 4526.462059][   T73]      do_syscall_64+0xc6/0x1e0
[ 4526.462059][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4526.462059][   T73] 
[ 4526.463799][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4526.463799][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4526.463799][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4526.463799][   T73]      ipv6_find_idev+0x102/0x170
[ 4526.463799][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4526.463799][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4526.463799][   T73]      netlink_rcv_skb+0x130/0x360
[ 4526.463799][   T73]      netlink_unicast+0x449/0x710
[ 4526.463799][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4526.463799][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4526.463799][   T73]      ___sys_sendmsg+0xee/0x170
[ 4526.463799][   T73]      __sys_sendmsg+0xcd/0x170
[ 4526.463799][   T73]      do_syscall_64+0xc6/0x1e0
[ 4526.463799][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4526.463799][   T73] 
[ 4526.465791][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4526.466078][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4526.466078][   T73]      netdev_get_by_index+0x5e/0x80
[ 4526.466078][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4526.466078][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4526.466078][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4526.466078][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4526.466078][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4526.466078][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4526.466078][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4526.466078][   T73]      addrconf_dad_begin+0x310/0x670
[ 4526.466078][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4526.466078][   T73]      process_one_work+0x84d/0x18a0
[ 4526.466078][   T73]      worker_thread+0x587/0xd30
[ 4526.466078][   T73]      kthread+0x28a/0x350
[ 4526.466078][   T73]      ret_from_fork+0x31/0x70
[ 4526.466078][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4526.466078][   T73] 
[ 4526.468240][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4526.468240][   T73]      netdev_get_by_index+0x5e/0x80
[ 4526.468240][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4526.468240][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4526.468240][   T73]      ip6_route_add+0x1c/0x140
[ 4526.468240][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4526.468240][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4526.468240][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4526.468240][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4526.468240][   T73]      netlink_rcv_skb+0x130/0x360
[ 4526.468240][   T73]      netlink_unicast+0x449/0x710
[ 4526.468240][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4526.468240][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4526.468240][   T73]      ___sys_sendmsg+0xee/0x170
[ 4526.468240][   T73]      __sys_sendmsg+0xcd/0x170
[ 4526.468240][   T73]      do_syscall_64+0xc6/0x1e0
[ 4526.468240][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4526.468240][   T73] 
[ 4526.470500][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4526.470500][   T73]      netdev_get_by_index+0x5e/0x80
[ 4526.470500][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4526.470500][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4526.470500][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4526.470500][   T73]      ipv6_add_addr+0x411/0x2000
[ 4526.470500][   T73]      inet6_addr_add+0x30e/0xa40
[ 4526.470500][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4526.470500][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4526.470500][   T73]      netlink_rcv_skb+0x130/0x360
[ 4526.470500][   T73]      netlink_unicast+0x449/0x710
[ 4526.470500][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4526.470500][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4526.470500][   T73]      ___sys_sendmsg+0xee/0x170
[ 4526.470500][   T73]      __sys_sendmsg+0xcd/0x170
[ 4526.470500][   T73]      do_syscall_64+0xc6/0x1e0
[ 4526.470500][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4526.470500][   T73] 
[ 4526.472695][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4526.472695][   T73]      netdev_get_by_index+0x5e/0x80
[ 4526.472695][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4526.472695][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4526.472695][   T73]      ip6_route_add+0x1c/0x140
[ 4526.472695][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4526.472695][   T73]      addrconf_add_dev+0xe2/0x170
[ 4526.472695][   T73]      inet6_addr_add+0x12f/0xa40
[ 4526.472695][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4526.472695][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4526.472695][   T73]      netlink_rcv_skb+0x130/0x360
[ 4526.472695][   T73]      netlink_unicast+0x449/0x710
[ 4526.472695][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4526.472695][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4526.472695][   T73]      ___sys_sendmsg+0xee/0x170
[ 4526.472695][   T73]      __sys_sendmsg+0xcd/0x170
[ 4526.472695][   T73]      do_syscall_64+0xc6/0x1e0
[ 4526.472695][   T73] 
[ 4526.474805][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4526.474805][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4526.474805][   T73]      ipv6_find_idev+0x102/0x170
[ 4526.474805][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4526.474805][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4526.474805][   T73]      netlink_rcv_skb+0x130/0x360
[ 4526.474805][   T73]      netlink_unicast+0x449/0x710
[ 4526.474805][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4526.474805][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4526.474805][   T73]      ___sys_sendmsg+0xee/0x170
[ 4526.474805][   T73]      __sys_sendmsg+0xcd/0x170
[ 4526.474805][   T73]      do_syscall_64+0xc6/0x1e0
[ 4526.474805][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4526.474805][   T73] 
[ 4526.476439][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4526.476439][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4526.476439][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4526.476439][   T73]      ipv6_find_idev+0x102/0x170
[ 4526.476439][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4526.476439][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4526.476439][   T73]      netlink_rcv_skb+0x130/0x360
[ 4526.476439][   T73]      netlink_unicast+0x449/0x710
[ 4526.476439][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4526.476439][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4526.476439][   T73]      ___sys_sendmsg+0xee/0x170
[ 4526.476439][   T73]      __sys_sendmsg+0xcd/0x170
[ 4526.476439][   T73]      do_syscall_64+0xc6/0x1e0
[ 4526.476439][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4526.476439][   T73] 
[ 4536.719780][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4536.720294][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4536.720294][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4536.720294][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4536.720294][   T73]      fib6_nh_init+0xa22/0x1580
[ 4536.720294][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4536.720294][   T73]      ip6_route_add+0x1c/0x140
[ 4536.720294][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4536.720294][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4536.720294][   T73]      netlink_rcv_skb+0x130/0x360
[ 4536.720294][   T73]      netlink_unicast+0x449/0x710
[ 4536.720294][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4536.720294][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4536.720294][   T73]      ___sys_sendmsg+0xee/0x170
[ 4536.720294][   T73]      __sys_sendmsg+0xcd/0x170
[ 4536.720294][   T73]      do_syscall_64+0xc6/0x1e0
[ 4536.720294][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4536.720294][   T73] 
[ 4536.722225][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4536.722225][   T73]      dst_init+0x84/0x4a0
[ 4536.722225][   T73]      dst_alloc+0x97/0x150
[ 4536.722225][   T73]      ip6_dst_alloc+0x23/0x90
[ 4536.722225][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4536.722225][   T73]      ip6_pol_route+0x56f/0x840
[ 4536.722225][   T73]      fib6_rule_lookup+0x456/0x630
[ 4536.722225][   T73]      ip6_route_input+0x59c/0xa50
[ 4536.722225][   T73]      ipv6_rcv+0x397/0x810
[ 4536.722225][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4536.722225][   T73]      process_backlog+0x101/0x620
[ 4536.722225][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4536.722225][   T73]      net_rx_action+0x495/0xbe0
[ 4536.722225][   T73]      __do_softirq+0x1b5/0x7f6
[ 4536.722225][   T73] 
[ 4536.723898][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4536.723898][   T73]      netdev_get_by_index+0x5e/0x80
[ 4536.723898][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4536.723898][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4536.723898][   T73]      ip6_route_add+0x1c/0x140
[ 4536.723898][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4536.723898][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4536.723898][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4536.723898][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4536.723898][   T73]      netlink_rcv_skb+0x130/0x360
[ 4536.723898][   T73]      netlink_unicast+0x449/0x710
[ 4536.723898][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4536.723898][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4536.723898][   T73]      ___sys_sendmsg+0xee/0x170
[ 4536.723898][   T73]      __sys_sendmsg+0xcd/0x170
[ 4536.723898][   T73]      do_syscall_64+0xc6/0x1e0
[ 4536.723898][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4536.723898][   T73] 
[ 4536.725897][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4536.725897][   T73]      netdev_get_by_index+0x5e/0x80
[ 4536.725897][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4536.725897][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4536.725897][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4536.725897][   T73]      ipv6_add_addr+0x411/0x2000
[ 4536.725897][   T73]      inet6_addr_add+0x30e/0xa40
[ 4536.725897][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4536.725897][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4536.725897][   T73]      netlink_rcv_skb+0x130/0x360
[ 4536.725897][   T73]      netlink_unicast+0x449/0x710
[ 4536.725897][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4536.725897][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4536.725897][   T73]      ___sys_sendmsg+0xee/0x170
[ 4536.725897][   T73]      __sys_sendmsg+0xcd/0x170
[ 4536.725897][   T73]      do_syscall_64+0xc6/0x1e0
[ 4536.725897][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4536.725897][   T73] 
[ 4536.727890][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4536.727890][   T73]      netdev_get_by_index+0x5e/0x80
[ 4536.727890][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4536.727890][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4536.727890][   T73]      ip6_route_add+0x1c/0x140
[ 4536.727890][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4536.727890][   T73]      addrconf_add_dev+0xe2/0x170
[ 4536.727890][   T73]      inet6_addr_add+0x12f/0xa40
[ 4536.727890][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4536.727890][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4536.727890][   T73]      netlink_rcv_skb+0x130/0x360
[ 4536.727890][   T73]      netlink_unicast+0x449/0x710
[ 4536.727890][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4536.727890][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4536.727890][   T73]      ___sys_sendmsg+0xee/0x170
[ 4536.727890][   T73]      __sys_sendmsg+0xcd/0x170
[ 4536.727890][   T73]      do_syscall_64+0xc6/0x1e0
[ 4536.727890][   T73] 
[ 4536.729851][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4536.729851][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4536.729851][   T73]      ipv6_find_idev+0x102/0x170
[ 4536.729851][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4536.729851][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4536.729851][   T73]      netlink_rcv_skb+0x130/0x360
[ 4536.729851][   T73]      netlink_unicast+0x449/0x710
[ 4536.729851][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4536.729851][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4536.729851][   T73]      ___sys_sendmsg+0xee/0x170
[ 4536.729851][   T73]      __sys_sendmsg+0xcd/0x170
[ 4536.729851][   T73]      do_syscall_64+0xc6/0x1e0
[ 4536.729851][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4536.729851][   T73] 
[ 4536.731399][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4536.731399][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4536.731399][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4536.731399][   T73]      ipv6_find_idev+0x102/0x170
[ 4536.731399][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4536.731399][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4536.731399][   T73]      netlink_rcv_skb+0x130/0x360
[ 4536.731399][   T73]      netlink_unicast+0x449/0x710
[ 4536.731399][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4536.731399][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4536.731399][   T73]      ___sys_sendmsg+0xee/0x170
[ 4536.731399][   T73]      __sys_sendmsg+0xcd/0x170
[ 4536.731399][   T73]      do_syscall_64+0xc6/0x1e0
[ 4536.731399][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4536.731399][   T73] 
[ 4536.733102][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4536.733387][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4536.733387][   T73]      netdev_get_by_index+0x5e/0x80
[ 4536.733387][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4536.733387][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4536.733387][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4536.733387][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4536.733387][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4536.733387][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4536.733387][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4536.733387][   T73]      addrconf_dad_begin+0x310/0x670
[ 4536.733387][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4536.733387][   T73]      process_one_work+0x84d/0x18a0
[ 4536.733387][   T73]      worker_thread+0x587/0xd30
[ 4536.733387][   T73]      kthread+0x28a/0x350
[ 4536.733387][   T73]      ret_from_fork+0x31/0x70
[ 4536.733387][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4536.733387][   T73] 
[ 4536.735327][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4536.735327][   T73]      netdev_get_by_index+0x5e/0x80
[ 4536.735327][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4536.735327][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4536.735327][   T73]      ip6_route_add+0x1c/0x140
[ 4536.735327][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4536.735327][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4536.735327][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4536.735327][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4536.735327][   T73]      netlink_rcv_skb+0x130/0x360
[ 4536.735327][   T73]      netlink_unicast+0x449/0x710
[ 4536.735327][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4536.735327][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4536.735327][   T73]      ___sys_sendmsg+0xee/0x170
[ 4536.735327][   T73]      __sys_sendmsg+0xcd/0x170
[ 4536.735327][   T73]      do_syscall_64+0xc6/0x1e0
[ 4536.735327][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4536.735327][   T73] 
[ 4536.737334][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4536.737334][   T73]      netdev_get_by_index+0x5e/0x80
[ 4536.737334][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4536.737334][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4536.737334][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4536.737334][   T73]      ipv6_add_addr+0x411/0x2000
[ 4536.737334][   T73]      inet6_addr_add+0x30e/0xa40
[ 4536.737334][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4536.737334][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4536.737334][   T73]      netlink_rcv_skb+0x130/0x360
[ 4536.737334][   T73]      netlink_unicast+0x449/0x710
[ 4536.737334][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4536.737334][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4536.737334][   T73]      ___sys_sendmsg+0xee/0x170
[ 4536.737334][   T73]      __sys_sendmsg+0xcd/0x170
[ 4536.737334][   T73]      do_syscall_64+0xc6/0x1e0
[ 4536.737334][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4536.737334][   T73] 
[ 4536.739335][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4536.739335][   T73]      netdev_get_by_index+0x5e/0x80
[ 4536.739335][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4536.739335][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4536.739335][   T73]      ip6_route_add+0x1c/0x140
[ 4536.739335][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4536.739335][   T73]      addrconf_add_dev+0xe2/0x170
[ 4536.739335][   T73]      inet6_addr_add+0x12f/0xa40
[ 4536.739335][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4536.739335][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4536.739335][   T73]      netlink_rcv_skb+0x130/0x360
[ 4536.739335][   T73]      netlink_unicast+0x449/0x710
[ 4536.739335][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4536.739335][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4536.739335][   T73]      ___sys_sendmsg+0xee/0x170
[ 4536.739335][   T73]      __sys_sendmsg+0xcd/0x170
[ 4536.739335][   T73]      do_syscall_64+0xc6/0x1e0
[ 4536.739335][   T73] 
[ 4536.741843][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4536.741843][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4536.741843][   T73]      ipv6_find_idev+0x102/0x170
[ 4536.741843][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4536.741843][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4536.741843][   T73]      netlink_rcv_skb+0x130/0x360
[ 4536.741843][   T73]      netlink_unicast+0x449/0x710
[ 4536.741843][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4536.741843][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4536.741843][   T73]      ___sys_sendmsg+0xee/0x170
[ 4536.741843][   T73]      __sys_sendmsg+0xcd/0x170
[ 4536.741843][   T73]      do_syscall_64+0xc6/0x1e0
[ 4536.741843][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4536.741843][   T73] 
[ 4536.743405][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4536.743405][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4536.743405][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4536.743405][   T73]      ipv6_find_idev+0x102/0x170
[ 4536.743405][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4536.743405][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4536.743405][   T73]      netlink_rcv_skb+0x130/0x360
[ 4536.743405][   T73]      netlink_unicast+0x449/0x710
[ 4536.743405][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4536.743405][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4536.743405][   T73]      ___sys_sendmsg+0xee/0x170
[ 4536.743405][   T73]      __sys_sendmsg+0xcd/0x170
[ 4536.743405][   T73]      do_syscall_64+0xc6/0x1e0
[ 4536.743405][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4536.743405][   T73] 
[ 4536.745101][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4536.745368][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4536.745368][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4536.745368][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4536.745368][   T73]      fib6_nh_init+0xa22/0x1580
[ 4536.745368][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4536.745368][   T73]      ip6_route_add+0x1c/0x140
[ 4536.745368][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4536.745368][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4536.745368][   T73]      netlink_rcv_skb+0x130/0x360
[ 4536.745368][   T73]      netlink_unicast+0x449/0x710
[ 4536.745368][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4536.745368][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4536.745368][   T73]      ___sys_sendmsg+0xee/0x170
[ 4536.745368][   T73]      __sys_sendmsg+0xcd/0x170
[ 4536.745368][   T73]      do_syscall_64+0xc6/0x1e0
[ 4536.745368][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4536.745368][   T73] 
[ 4536.747452][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4536.747452][   T73]      dst_init+0x84/0x4a0
[ 4536.747452][   T73]      dst_alloc+0x97/0x150
[ 4536.747452][   T73]      ip6_dst_alloc+0x23/0x90
[ 4536.747452][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4536.747452][   T73]      ip6_pol_route+0x56f/0x840
[ 4536.747452][   T73]      fib6_rule_lookup+0x456/0x630
[ 4536.747452][   T73]      ip6_route_input+0x59c/0xa50
[ 4536.747452][   T73]      ipv6_rcv+0x397/0x810
[ 4536.747452][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4536.747452][   T73]      process_backlog+0x101/0x620
[ 4536.747452][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4536.747452][   T73]      net_rx_action+0x495/0xbe0
[ 4536.747452][   T73]      __do_softirq+0x1b5/0x7f6
[ 4536.747452][   T73] 
[ 4536.756791][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4536.756791][   T73]      netdev_get_by_index+0x5e/0x80
[ 4536.756791][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4536.756791][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4536.756791][   T73]      ip6_route_add+0x1c/0x140
[ 4536.756791][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4536.756791][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4536.756791][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4536.756791][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4536.756791][   T73]      netlink_rcv_skb+0x130/0x360
[ 4536.756791][   T73]      netlink_unicast+0x449/0x710
[ 4536.756791][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4536.756791][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4536.756791][   T73]      ___sys_sendmsg+0xee/0x170
[ 4536.756791][   T73]      __sys_sendmsg+0xcd/0x170
[ 4536.756791][   T73]      do_syscall_64+0xc6/0x1e0
[ 4536.756791][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4536.756791][   T73] 
[ 4536.759036][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4536.759036][   T73]      netdev_get_by_index+0x5e/0x80
[ 4536.759036][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4536.759036][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4536.759036][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4536.759036][   T73]      ipv6_add_addr+0x411/0x2000
[ 4536.759036][   T73]      inet6_addr_add+0x30e/0xa40
[ 4536.759036][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4536.759036][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4536.759036][   T73]      netlink_rcv_skb+0x130/0x360
[ 4536.759036][   T73]      netlink_unicast+0x449/0x710
[ 4536.759036][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4536.759036][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4536.759036][   T73]      ___sys_sendmsg+0xee/0x170
[ 4536.759036][   T73]      __sys_sendmsg+0xcd/0x170
[ 4536.759036][   T73]      do_syscall_64+0xc6/0x1e0
[ 4536.759036][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4536.759036][   T73] 
[ 4536.761268][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4536.761268][   T73]      netdev_get_by_index+0x5e/0x80
[ 4536.761268][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4536.761268][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4536.761268][   T73]      ip6_route_add+0x1c/0x140
[ 4536.761268][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4536.761268][   T73]      addrconf_add_dev+0xe2/0x170
[ 4536.761268][   T73]      inet6_addr_add+0x12f/0xa40
[ 4536.761268][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4536.761268][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4536.761268][   T73]      netlink_rcv_skb+0x130/0x360
[ 4536.761268][   T73]      netlink_unicast+0x449/0x710
[ 4536.761268][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4536.761268][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4536.761268][   T73]      ___sys_sendmsg+0xee/0x170
[ 4536.761268][   T73]      __sys_sendmsg+0xcd/0x170
[ 4536.761268][   T73]      do_syscall_64+0xc6/0x1e0
[ 4536.761268][   T73] 
[ 4536.763346][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4536.763346][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4536.763346][   T73]      ipv6_find_idev+0x102/0x170
[ 4536.763346][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4536.763346][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4536.763346][   T73]      netlink_rcv_skb+0x130/0x360
[ 4536.763346][   T73]      netlink_unicast+0x449/0x710
[ 4536.763346][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4536.763346][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4536.763346][   T73]      ___sys_sendmsg+0xee/0x170
[ 4536.763346][   T73]      __sys_sendmsg+0xcd/0x170
[ 4536.763346][   T73]      do_syscall_64+0xc6/0x1e0
[ 4536.763346][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4536.763346][   T73] 
[ 4536.765135][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4536.765135][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4536.765135][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4536.765135][   T73]      ipv6_find_idev+0x102/0x170
[ 4536.765135][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4536.765135][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4536.765135][   T73]      netlink_rcv_skb+0x130/0x360
[ 4536.765135][   T73]      netlink_unicast+0x449/0x710
[ 4536.765135][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4536.765135][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4536.765135][   T73]      ___sys_sendmsg+0xee/0x170
[ 4536.765135][   T73]      __sys_sendmsg+0xcd/0x170
[ 4536.765135][   T73]      do_syscall_64+0xc6/0x1e0
[ 4536.765135][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4536.765135][   T73] 
[ 4536.767226][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4536.767508][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4536.767508][   T73]      netdev_get_by_index+0x5e/0x80
[ 4536.767508][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4536.767508][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4536.767508][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4536.767508][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4536.767508][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4536.767508][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4536.767508][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4536.767508][   T73]      addrconf_dad_begin+0x310/0x670
[ 4536.767508][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4536.767508][   T73]      process_one_work+0x84d/0x18a0
[ 4536.767508][   T73]      worker_thread+0x587/0xd30
[ 4536.767508][   T73]      kthread+0x28a/0x350
[ 4536.767508][   T73]      ret_from_fork+0x31/0x70
[ 4536.767508][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4536.767508][   T73] 
[ 4536.769668][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4536.769668][   T73]      netdev_get_by_index+0x5e/0x80
[ 4536.769668][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4536.769668][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4536.769668][   T73]      ip6_route_add+0x1c/0x140
[ 4536.769668][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4536.769668][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4536.769668][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4536.769668][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4536.769668][   T73]      netlink_rcv_skb+0x130/0x360
[ 4536.769668][   T73]      netlink_unicast+0x449/0x710
[ 4536.769668][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4536.769668][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4536.769668][   T73]      ___sys_sendmsg+0xee/0x170
[ 4536.769668][   T73]      __sys_sendmsg+0xcd/0x170
[ 4536.769668][   T73]      do_syscall_64+0xc6/0x1e0
[ 4536.769668][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4536.769668][   T73] 
[ 4536.771912][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4536.771912][   T73]      netdev_get_by_index+0x5e/0x80
[ 4536.771912][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4536.771912][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4536.771912][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4536.771912][   T73]      ipv6_add_addr+0x411/0x2000
[ 4536.771912][   T73]      inet6_addr_add+0x30e/0xa40
[ 4536.771912][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4536.771912][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4536.771912][   T73]      netlink_rcv_skb+0x130/0x360
[ 4536.771912][   T73]      netlink_unicast+0x449/0x710
[ 4536.771912][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4536.771912][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4536.771912][   T73]      ___sys_sendmsg+0xee/0x170
[ 4536.771912][   T73]      __sys_sendmsg+0xcd/0x170
[ 4536.771912][   T73]      do_syscall_64+0xc6/0x1e0
[ 4536.771912][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4536.771912][   T73] 
[ 4536.774124][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4536.774124][   T73]      netdev_get_by_index+0x5e/0x80
[ 4536.774124][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4536.774124][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4536.774124][   T73]      ip6_route_add+0x1c/0x140
[ 4536.774124][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4536.774124][   T73]      addrconf_add_dev+0xe2/0x170
[ 4536.774124][   T73]      inet6_addr_add+0x12f/0xa40
[ 4536.774124][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4536.774124][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4536.774124][   T73]      netlink_rcv_skb+0x130/0x360
[ 4536.774124][   T73]      netlink_unicast+0x449/0x710
[ 4536.774124][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4536.774124][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4536.774124][   T73]      ___sys_sendmsg+0xee/0x170
[ 4536.774124][   T73]      __sys_sendmsg+0xcd/0x170
[ 4536.774124][   T73]      do_syscall_64+0xc6/0x1e0
[ 4536.774124][   T73] 
[ 4536.776396][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4536.776396][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4536.776396][   T73]      ipv6_find_idev+0x102/0x170
[ 4536.776396][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4536.776396][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4536.776396][   T73]      netlink_rcv_skb+0x130/0x360
[ 4536.776396][   T73]      netlink_unicast+0x449/0x710
[ 4536.776396][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4536.776396][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4536.776396][   T73]      ___sys_sendmsg+0xee/0x170
[ 4536.776396][   T73]      __sys_sendmsg+0xcd/0x170
[ 4536.776396][   T73]      do_syscall_64+0xc6/0x1e0
[ 4536.776396][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4536.776396][   T73] 
[ 4536.778119][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4536.778119][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4536.778119][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4536.778119][   T73]      ipv6_find_idev+0x102/0x170
[ 4536.778119][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4536.778119][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4536.778119][   T73]      netlink_rcv_skb+0x130/0x360
[ 4536.778119][   T73]      netlink_unicast+0x449/0x710
[ 4536.778119][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4536.778119][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4536.778119][   T73]      ___sys_sendmsg+0xee/0x170
[ 4536.778119][   T73]      __sys_sendmsg+0xcd/0x170
[ 4536.778119][   T73]      do_syscall_64+0xc6/0x1e0
[ 4536.778119][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4536.778119][   T73] 
[ 4547.015823][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4547.016328][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4547.016328][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4547.016328][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4547.016328][   T73]      fib6_nh_init+0xa22/0x1580
[ 4547.016328][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4547.016328][   T73]      ip6_route_add+0x1c/0x140
[ 4547.016328][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4547.016328][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4547.016328][   T73]      netlink_rcv_skb+0x130/0x360
[ 4547.016328][   T73]      netlink_unicast+0x449/0x710
[ 4547.016328][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4547.016328][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4547.016328][   T73]      ___sys_sendmsg+0xee/0x170
[ 4547.016328][   T73]      __sys_sendmsg+0xcd/0x170
[ 4547.016328][   T73]      do_syscall_64+0xc6/0x1e0
[ 4547.016328][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4547.016328][   T73] 
[ 4547.018687][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4547.018687][   T73]      dst_init+0x84/0x4a0
[ 4547.018687][   T73]      dst_alloc+0x97/0x150
[ 4547.018687][   T73]      ip6_dst_alloc+0x23/0x90
[ 4547.018687][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4547.018687][   T73]      ip6_pol_route+0x56f/0x840
[ 4547.018687][   T73]      fib6_rule_lookup+0x456/0x630
[ 4547.018687][   T73]      ip6_route_input+0x59c/0xa50
[ 4547.018687][   T73]      ipv6_rcv+0x397/0x810
[ 4547.018687][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4547.018687][   T73]      process_backlog+0x101/0x620
[ 4547.018687][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4547.018687][   T73]      net_rx_action+0x495/0xbe0
[ 4547.018687][   T73]      __do_softirq+0x1b5/0x7f6
[ 4547.018687][   T73] 
[ 4547.025108][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4547.025108][   T73]      netdev_get_by_index+0x5e/0x80
[ 4547.025108][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4547.025108][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4547.025108][   T73]      ip6_route_add+0x1c/0x140
[ 4547.025108][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4547.025108][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4547.025108][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4547.025108][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4547.025108][   T73]      netlink_rcv_skb+0x130/0x360
[ 4547.025108][   T73]      netlink_unicast+0x449/0x710
[ 4547.025108][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4547.025108][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4547.025108][   T73]      ___sys_sendmsg+0xee/0x170
[ 4547.025108][   T73]      __sys_sendmsg+0xcd/0x170
[ 4547.025108][   T73]      do_syscall_64+0xc6/0x1e0
[ 4547.025108][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4547.025108][   T73] 
[ 4547.027589][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4547.027589][   T73]      netdev_get_by_index+0x5e/0x80
[ 4547.027589][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4547.027589][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4547.027589][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4547.027589][   T73]      ipv6_add_addr+0x411/0x2000
[ 4547.027589][   T73]      inet6_addr_add+0x30e/0xa40
[ 4547.027589][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4547.027589][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4547.027589][   T73]      netlink_rcv_skb+0x130/0x360
[ 4547.027589][   T73]      netlink_unicast+0x449/0x710
[ 4547.027589][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4547.027589][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4547.027589][   T73]      ___sys_sendmsg+0xee/0x170
[ 4547.027589][   T73]      __sys_sendmsg+0xcd/0x170
[ 4547.027589][   T73]      do_syscall_64+0xc6/0x1e0
[ 4547.027589][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4547.027589][   T73] 
[ 4547.030054][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4547.030054][   T73]      netdev_get_by_index+0x5e/0x80
[ 4547.030054][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4547.030054][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4547.030054][   T73]      ip6_route_add+0x1c/0x140
[ 4547.030054][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4547.030054][   T73]      addrconf_add_dev+0xe2/0x170
[ 4547.030054][   T73]      inet6_addr_add+0x12f/0xa40
[ 4547.030054][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4547.030054][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4547.030054][   T73]      netlink_rcv_skb+0x130/0x360
[ 4547.030054][   T73]      netlink_unicast+0x449/0x710
[ 4547.030054][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4547.030054][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4547.030054][   T73]      ___sys_sendmsg+0xee/0x170
[ 4547.030054][   T73]      __sys_sendmsg+0xcd/0x170
[ 4547.030054][   T73]      do_syscall_64+0xc6/0x1e0
[ 4547.030054][   T73] 
[ 4547.032488][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4547.032488][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4547.032488][   T73]      ipv6_find_idev+0x102/0x170
[ 4547.032488][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4547.032488][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4547.032488][   T73]      netlink_rcv_skb+0x130/0x360
[ 4547.032488][   T73]      netlink_unicast+0x449/0x710
[ 4547.032488][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4547.032488][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4547.032488][   T73]      ___sys_sendmsg+0xee/0x170
[ 4547.032488][   T73]      __sys_sendmsg+0xcd/0x170
[ 4547.032488][   T73]      do_syscall_64+0xc6/0x1e0
[ 4547.032488][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4547.032488][   T73] 
[ 4547.034398][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4547.034398][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4547.034398][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4547.034398][   T73]      ipv6_find_idev+0x102/0x170
[ 4547.034398][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4547.034398][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4547.034398][   T73]      netlink_rcv_skb+0x130/0x360
[ 4547.034398][   T73]      netlink_unicast+0x449/0x710
[ 4547.034398][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4547.034398][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4547.034398][   T73]      ___sys_sendmsg+0xee/0x170
[ 4547.034398][   T73]      __sys_sendmsg+0xcd/0x170
[ 4547.034398][   T73]      do_syscall_64+0xc6/0x1e0
[ 4547.034398][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4547.034398][   T73] 
[ 4547.036480][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4547.036838][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4547.036838][   T73]      netdev_get_by_index+0x5e/0x80
[ 4547.036838][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4547.036838][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4547.036838][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4547.036838][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4547.036838][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4547.036838][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4547.036838][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4547.036838][   T73]      addrconf_dad_begin+0x310/0x670
[ 4547.036838][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4547.036838][   T73]      process_one_work+0x84d/0x18a0
[ 4547.036838][   T73]      worker_thread+0x587/0xd30
[ 4547.036838][   T73]      kthread+0x28a/0x350
[ 4547.036838][   T73]      ret_from_fork+0x31/0x70
[ 4547.036838][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4547.036838][   T73] 
[ 4547.039198][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4547.039198][   T73]      netdev_get_by_index+0x5e/0x80
[ 4547.039198][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4547.039198][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4547.039198][   T73]      ip6_route_add+0x1c/0x140
[ 4547.039198][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4547.039198][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4547.039198][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4547.039198][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4547.039198][   T73]      netlink_rcv_skb+0x130/0x360
[ 4547.039198][   T73]      netlink_unicast+0x449/0x710
[ 4547.039198][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4547.039198][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4547.039198][   T73]      ___sys_sendmsg+0xee/0x170
[ 4547.039198][   T73]      __sys_sendmsg+0xcd/0x170
[ 4547.039198][   T73]      do_syscall_64+0xc6/0x1e0
[ 4547.039198][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4547.039198][   T73] 
[ 4547.041678][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4547.041678][   T73]      netdev_get_by_index+0x5e/0x80
[ 4547.041678][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4547.041678][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4547.041678][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4547.041678][   T73]      ipv6_add_addr+0x411/0x2000
[ 4547.041678][   T73]      inet6_addr_add+0x30e/0xa40
[ 4547.041678][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4547.041678][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4547.041678][   T73]      netlink_rcv_skb+0x130/0x360
[ 4547.041678][   T73]      netlink_unicast+0x449/0x710
[ 4547.041678][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4547.041678][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4547.041678][   T73]      ___sys_sendmsg+0xee/0x170
[ 4547.041678][   T73]      __sys_sendmsg+0xcd/0x170
[ 4547.041678][   T73]      do_syscall_64+0xc6/0x1e0
[ 4547.041678][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4547.041678][   T73] 
[ 4547.044154][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4547.044154][   T73]      netdev_get_by_index+0x5e/0x80
[ 4547.044154][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4547.044154][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4547.044154][   T73]      ip6_route_add+0x1c/0x140
[ 4547.044154][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4547.044154][   T73]      addrconf_add_dev+0xe2/0x170
[ 4547.044154][   T73]      inet6_addr_add+0x12f/0xa40
[ 4547.044154][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4547.044154][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4547.044154][   T73]      netlink_rcv_skb+0x130/0x360
[ 4547.044154][   T73]      netlink_unicast+0x449/0x710
[ 4547.044154][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4547.044154][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4547.044154][   T73]      ___sys_sendmsg+0xee/0x170
[ 4547.044154][   T73]      __sys_sendmsg+0xcd/0x170
[ 4547.044154][   T73]      do_syscall_64+0xc6/0x1e0
[ 4547.044154][   T73] 
[ 4547.046569][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4547.046569][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4547.046569][   T73]      ipv6_find_idev+0x102/0x170
[ 4547.046569][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4547.046569][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4547.046569][   T73]      netlink_rcv_skb+0x130/0x360
[ 4547.046569][   T73]      netlink_unicast+0x449/0x710
[ 4547.046569][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4547.046569][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4547.046569][   T73]      ___sys_sendmsg+0xee/0x170
[ 4547.046569][   T73]      __sys_sendmsg+0xcd/0x170
[ 4547.046569][   T73]      do_syscall_64+0xc6/0x1e0
[ 4547.046569][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4547.046569][   T73] 
[ 4547.048466][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4547.048466][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4547.048466][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4547.048466][   T73]      ipv6_find_idev+0x102/0x170
[ 4547.048466][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4547.048466][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4547.048466][   T73]      netlink_rcv_skb+0x130/0x360
[ 4547.048466][   T73]      netlink_unicast+0x449/0x710
[ 4547.048466][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4547.048466][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4547.048466][   T73]      ___sys_sendmsg+0xee/0x170
[ 4547.048466][   T73]      __sys_sendmsg+0xcd/0x170
[ 4547.048466][   T73]      do_syscall_64+0xc6/0x1e0
[ 4547.048466][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4547.048466][   T73] 
[ 4547.050570][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4547.050923][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4547.050923][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4547.050923][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4547.050923][   T73]      fib6_nh_init+0xa22/0x1580
[ 4547.050923][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4547.050923][   T73]      ip6_route_add+0x1c/0x140
[ 4547.050923][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4547.050923][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4547.050923][   T73]      netlink_rcv_skb+0x130/0x360
[ 4547.050923][   T73]      netlink_unicast+0x449/0x710
[ 4547.050923][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4547.050923][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4547.050923][   T73]      ___sys_sendmsg+0xee/0x170
[ 4547.050923][   T73]      __sys_sendmsg+0xcd/0x170
[ 4547.050923][   T73]      do_syscall_64+0xc6/0x1e0
[ 4547.050923][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4547.050923][   T73] 
[ 4547.053463][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4547.053463][   T73]      dst_init+0x84/0x4a0
[ 4547.053463][   T73]      dst_alloc+0x97/0x150
[ 4547.053463][   T73]      ip6_dst_alloc+0x23/0x90
[ 4547.053463][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4547.053463][   T73]      ip6_pol_route+0x56f/0x840
[ 4547.053463][   T73]      fib6_rule_lookup+0x456/0x630
[ 4547.053463][   T73]      ip6_route_input+0x59c/0xa50
[ 4547.053463][   T73]      ipv6_rcv+0x397/0x810
[ 4547.053463][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4547.053463][   T73]      process_backlog+0x101/0x620
[ 4547.053463][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4547.053463][   T73]      net_rx_action+0x495/0xbe0
[ 4547.053463][   T73]      __do_softirq+0x1b5/0x7f6
[ 4547.053463][   T73] 
[ 4547.055667][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4547.055667][   T73]      netdev_get_by_index+0x5e/0x80
[ 4547.055667][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4547.055667][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4547.055667][   T73]      ip6_route_add+0x1c/0x140
[ 4547.055667][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4547.055667][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4547.055667][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4547.055667][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4547.055667][   T73]      netlink_rcv_skb+0x130/0x360
[ 4547.055667][   T73]      netlink_unicast+0x449/0x710
[ 4547.055667][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4547.055667][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4547.055667][   T73]      ___sys_sendmsg+0xee/0x170
[ 4547.055667][   T73]      __sys_sendmsg+0xcd/0x170
[ 4547.055667][   T73]      do_syscall_64+0xc6/0x1e0
[ 4547.055667][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4547.055667][   T73] 
[ 4547.058378][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4547.058378][   T73]      netdev_get_by_index+0x5e/0x80
[ 4547.058378][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4547.058378][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4547.058378][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4547.058378][   T73]      ipv6_add_addr+0x411/0x2000
[ 4547.058378][   T73]      inet6_addr_add+0x30e/0xa40
[ 4547.058378][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4547.058378][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4547.058378][   T73]      netlink_rcv_skb+0x130/0x360
[ 4547.058378][   T73]      netlink_unicast+0x449/0x710
[ 4547.058378][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4547.058378][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4547.058378][   T73]      ___sys_sendmsg+0xee/0x170
[ 4547.058378][   T73]      __sys_sendmsg+0xcd/0x170
[ 4547.058378][   T73]      do_syscall_64+0xc6/0x1e0
[ 4547.058378][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4547.058378][   T73] 
[ 4547.061154][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4547.061154][   T73]      netdev_get_by_index+0x5e/0x80
[ 4547.061154][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4547.061154][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4547.061154][   T73]      ip6_route_add+0x1c/0x140
[ 4547.061154][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4547.061154][   T73]      addrconf_add_dev+0xe2/0x170
[ 4547.061154][   T73]      inet6_addr_add+0x12f/0xa40
[ 4547.061154][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4547.061154][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4547.061154][   T73]      netlink_rcv_skb+0x130/0x360
[ 4547.061154][   T73]      netlink_unicast+0x449/0x710
[ 4547.061154][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4547.061154][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4547.061154][   T73]      ___sys_sendmsg+0xee/0x170
[ 4547.061154][   T73]      __sys_sendmsg+0xcd/0x170
[ 4547.061154][   T73]      do_syscall_64+0xc6/0x1e0
[ 4547.061154][   T73] 
[ 4547.063711][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4547.063711][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4547.063711][   T73]      ipv6_find_idev+0x102/0x170
[ 4547.063711][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4547.063711][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4547.063711][   T73]      netlink_rcv_skb+0x130/0x360
[ 4547.063711][   T73]      netlink_unicast+0x449/0x710
[ 4547.063711][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4547.063711][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4547.063711][   T73]      ___sys_sendmsg+0xee/0x170
[ 4547.063711][   T73]      __sys_sendmsg+0xcd/0x170
[ 4547.063711][   T73]      do_syscall_64+0xc6/0x1e0
[ 4547.063711][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4547.063711][   T73] 
[ 4547.065803][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4547.065803][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4547.065803][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4547.065803][   T73]      ipv6_find_idev+0x102/0x170
[ 4547.065803][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4547.065803][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4547.065803][   T73]      netlink_rcv_skb+0x130/0x360
[ 4547.065803][   T73]      netlink_unicast+0x449/0x710
[ 4547.065803][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4547.065803][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4547.065803][   T73]      ___sys_sendmsg+0xee/0x170
[ 4547.065803][   T73]      __sys_sendmsg+0xcd/0x170
[ 4547.065803][   T73]      do_syscall_64+0xc6/0x1e0
[ 4547.065803][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4547.065803][   T73] 
[ 4547.068123][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4547.068455][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4547.068455][   T73]      netdev_get_by_index+0x5e/0x80
[ 4547.068455][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4547.068455][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4547.068455][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4547.068455][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4547.068455][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4547.068455][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4547.068455][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4547.068455][   T73]      addrconf_dad_begin+0x310/0x670
[ 4547.068455][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4547.068455][   T73]      process_one_work+0x84d/0x18a0
[ 4547.068455][   T73]      worker_thread+0x587/0xd30
[ 4547.068455][   T73]      kthread+0x28a/0x350
[ 4547.068455][   T73]      ret_from_fork+0x31/0x70
[ 4547.068455][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4547.068455][   T73] 
[ 4547.071071][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4547.071071][   T73]      netdev_get_by_index+0x5e/0x80
[ 4547.071071][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4547.071071][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4547.071071][   T73]      ip6_route_add+0x1c/0x140
[ 4547.071071][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4547.071071][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4547.071071][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4547.071071][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4547.071071][   T73]      netlink_rcv_skb+0x130/0x360
[ 4547.071071][   T73]      netlink_unicast+0x449/0x710
[ 4547.071071][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4547.071071][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4547.071071][   T73]      ___sys_sendmsg+0xee/0x170
[ 4547.071071][   T73]      __sys_sendmsg+0xcd/0x170
[ 4547.071071][   T73]      do_syscall_64+0xc6/0x1e0
[ 4547.071071][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4547.071071][   T73] 
[ 4547.073861][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4547.073861][   T73]      netdev_get_by_index+0x5e/0x80
[ 4547.073861][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4547.073861][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4547.073861][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4547.073861][   T73]      ipv6_add_addr+0x411/0x2000
[ 4547.073861][   T73]      inet6_addr_add+0x30e/0xa40
[ 4547.073861][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4547.073861][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4547.073861][   T73]      netlink_rcv_skb+0x130/0x360
[ 4547.073861][   T73]      netlink_unicast+0x449/0x710
[ 4547.073861][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4547.073861][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4547.073861][   T73]      ___sys_sendmsg+0xee/0x170
[ 4547.073861][   T73]      __sys_sendmsg+0xcd/0x170
[ 4547.073861][   T73]      do_syscall_64+0xc6/0x1e0
[ 4547.073861][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4547.073861][   T73] 
[ 4547.076512][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4547.076512][   T73]      netdev_get_by_index+0x5e/0x80
[ 4547.076512][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4547.076512][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4547.076512][   T73]      ip6_route_add+0x1c/0x140
[ 4547.076512][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4547.076512][   T73]      addrconf_add_dev+0xe2/0x170
[ 4547.076512][   T73]      inet6_addr_add+0x12f/0xa40
[ 4547.076512][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4547.076512][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4547.076512][   T73]      netlink_rcv_skb+0x130/0x360
[ 4547.076512][   T73]      netlink_unicast+0x449/0x710
[ 4547.076512][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4547.076512][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4547.076512][   T73]      ___sys_sendmsg+0xee/0x170
[ 4547.076512][   T73]      __sys_sendmsg+0xcd/0x170
[ 4547.076512][   T73]      do_syscall_64+0xc6/0x1e0
[ 4547.076512][   T73] 
[ 4547.079172][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4547.079172][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4547.079172][   T73]      ipv6_find_idev+0x102/0x170
[ 4547.079172][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4547.079172][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4547.079172][   T73]      netlink_rcv_skb+0x130/0x360
[ 4547.079172][   T73]      netlink_unicast+0x449/0x710
[ 4547.079172][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4547.079172][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4547.079172][   T73]      ___sys_sendmsg+0xee/0x170
[ 4547.079172][   T73]      __sys_sendmsg+0xcd/0x170
[ 4547.079172][   T73]      do_syscall_64+0xc6/0x1e0
[ 4547.079172][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4547.079172][   T73] 
[ 4547.081263][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4547.081263][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4547.081263][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4547.081263][   T73]      ipv6_find_idev+0x102/0x170
[ 4547.081263][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4547.081263][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4547.081263][   T73]      netlink_rcv_skb+0x130/0x360
[ 4547.081263][   T73]      netlink_unicast+0x449/0x710
[ 4547.081263][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4547.081263][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4547.081263][   T73]      ___sys_sendmsg+0xee/0x170
[ 4547.081263][   T73]      __sys_sendmsg+0xcd/0x170
[ 4547.081263][   T73]      do_syscall_64+0xc6/0x1e0
[ 4547.081263][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4547.081263][   T73] 
[ 4557.295811][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4557.296333][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4557.296333][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4557.296333][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4557.296333][   T73]      fib6_nh_init+0xa22/0x1580
[ 4557.296333][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4557.296333][   T73]      ip6_route_add+0x1c/0x140
[ 4557.296333][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4557.296333][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4557.296333][   T73]      netlink_rcv_skb+0x130/0x360
[ 4557.296333][   T73]      netlink_unicast+0x449/0x710
[ 4557.296333][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4557.296333][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4557.296333][   T73]      ___sys_sendmsg+0xee/0x170
[ 4557.296333][   T73]      __sys_sendmsg+0xcd/0x170
[ 4557.296333][   T73]      do_syscall_64+0xc6/0x1e0
[ 4557.296333][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4557.296333][   T73] 
[ 4557.298547][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4557.298547][   T73]      dst_init+0x84/0x4a0
[ 4557.298547][   T73]      dst_alloc+0x97/0x150
[ 4557.298547][   T73]      ip6_dst_alloc+0x23/0x90
[ 4557.298547][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4557.298547][   T73]      ip6_pol_route+0x56f/0x840
[ 4557.298547][   T73]      fib6_rule_lookup+0x456/0x630
[ 4557.298547][   T73]      ip6_route_input+0x59c/0xa50
[ 4557.298547][   T73]      ipv6_rcv+0x397/0x810
[ 4557.298547][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4557.298547][   T73]      process_backlog+0x101/0x620
[ 4557.298547][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4557.298547][   T73]      net_rx_action+0x495/0xbe0
[ 4557.298547][   T73]      __do_softirq+0x1b5/0x7f6
[ 4557.298547][   T73] 
[ 4557.300423][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4557.300423][   T73]      netdev_get_by_index+0x5e/0x80
[ 4557.300423][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4557.300423][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4557.300423][   T73]      ip6_route_add+0x1c/0x140
[ 4557.300423][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4557.300423][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4557.300423][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4557.300423][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4557.300423][   T73]      netlink_rcv_skb+0x130/0x360
[ 4557.300423][   T73]      netlink_unicast+0x449/0x710
[ 4557.300423][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4557.300423][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4557.300423][   T73]      ___sys_sendmsg+0xee/0x170
[ 4557.300423][   T73]      __sys_sendmsg+0xcd/0x170
[ 4557.300423][   T73]      do_syscall_64+0xc6/0x1e0
[ 4557.300423][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4557.300423][   T73] 
[ 4557.302710][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4557.302710][   T73]      netdev_get_by_index+0x5e/0x80
[ 4557.302710][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4557.302710][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4557.302710][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4557.302710][   T73]      ipv6_add_addr+0x411/0x2000
[ 4557.302710][   T73]      inet6_addr_add+0x30e/0xa40
[ 4557.302710][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4557.302710][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4557.302710][   T73]      netlink_rcv_skb+0x130/0x360
[ 4557.302710][   T73]      netlink_unicast+0x449/0x710
[ 4557.302710][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4557.302710][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4557.302710][   T73]      ___sys_sendmsg+0xee/0x170
[ 4557.302710][   T73]      __sys_sendmsg+0xcd/0x170
[ 4557.302710][   T73]      do_syscall_64+0xc6/0x1e0
[ 4557.302710][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4557.302710][   T73] 
[ 4557.304992][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4557.304992][   T73]      netdev_get_by_index+0x5e/0x80
[ 4557.304992][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4557.304992][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4557.304992][   T73]      ip6_route_add+0x1c/0x140
[ 4557.304992][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4557.304992][   T73]      addrconf_add_dev+0xe2/0x170
[ 4557.304992][   T73]      inet6_addr_add+0x12f/0xa40
[ 4557.304992][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4557.304992][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4557.304992][   T73]      netlink_rcv_skb+0x130/0x360
[ 4557.304992][   T73]      netlink_unicast+0x449/0x710
[ 4557.304992][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4557.304992][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4557.304992][   T73]      ___sys_sendmsg+0xee/0x170
[ 4557.304992][   T73]      __sys_sendmsg+0xcd/0x170
[ 4557.304992][   T73]      do_syscall_64+0xc6/0x1e0
[ 4557.304992][   T73] 
[ 4557.307226][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4557.307226][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4557.307226][   T73]      ipv6_find_idev+0x102/0x170
[ 4557.307226][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4557.307226][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4557.307226][   T73]      netlink_rcv_skb+0x130/0x360
[ 4557.307226][   T73]      netlink_unicast+0x449/0x710
[ 4557.307226][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4557.307226][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4557.307226][   T73]      ___sys_sendmsg+0xee/0x170
[ 4557.307226][   T73]      __sys_sendmsg+0xcd/0x170
[ 4557.307226][   T73]      do_syscall_64+0xc6/0x1e0
[ 4557.307226][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4557.307226][   T73] 
[ 4557.308985][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4557.308985][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4557.308985][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4557.308985][   T73]      ipv6_find_idev+0x102/0x170
[ 4557.308985][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4557.308985][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4557.308985][   T73]      netlink_rcv_skb+0x130/0x360
[ 4557.308985][   T73]      netlink_unicast+0x449/0x710
[ 4557.308985][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4557.308985][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4557.308985][   T73]      ___sys_sendmsg+0xee/0x170
[ 4557.308985][   T73]      __sys_sendmsg+0xcd/0x170
[ 4557.308985][   T73]      do_syscall_64+0xc6/0x1e0
[ 4557.308985][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4557.308985][   T73] 
[ 4557.310908][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4557.311226][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4557.311226][   T73]      netdev_get_by_index+0x5e/0x80
[ 4557.311226][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4557.311226][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4557.311226][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4557.311226][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4557.311226][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4557.311226][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4557.311226][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4557.311226][   T73]      addrconf_dad_begin+0x310/0x670
[ 4557.311226][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4557.311226][   T73]      process_one_work+0x84d/0x18a0
[ 4557.311226][   T73]      worker_thread+0x587/0xd30
[ 4557.311226][   T73]      kthread+0x28a/0x350
[ 4557.311226][   T73]      ret_from_fork+0x31/0x70
[ 4557.311226][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4557.311226][   T73] 
[ 4557.313384][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4557.313384][   T73]      netdev_get_by_index+0x5e/0x80
[ 4557.313384][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4557.313384][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4557.313384][   T73]      ip6_route_add+0x1c/0x140
[ 4557.313384][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4557.313384][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4557.313384][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4557.313384][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4557.313384][   T73]      netlink_rcv_skb+0x130/0x360
[ 4557.313384][   T73]      netlink_unicast+0x449/0x710
[ 4557.313384][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4557.313384][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4557.313384][   T73]      ___sys_sendmsg+0xee/0x170
[ 4557.313384][   T73]      __sys_sendmsg+0xcd/0x170
[ 4557.313384][   T73]      do_syscall_64+0xc6/0x1e0
[ 4557.313384][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4557.313384][   T73] 
[ 4557.315640][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4557.315640][   T73]      netdev_get_by_index+0x5e/0x80
[ 4557.315640][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4557.315640][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4557.315640][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4557.315640][   T73]      ipv6_add_addr+0x411/0x2000
[ 4557.315640][   T73]      inet6_addr_add+0x30e/0xa40
[ 4557.315640][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4557.315640][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4557.315640][   T73]      netlink_rcv_skb+0x130/0x360
[ 4557.315640][   T73]      netlink_unicast+0x449/0x710
[ 4557.315640][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4557.315640][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4557.315640][   T73]      ___sys_sendmsg+0xee/0x170
[ 4557.315640][   T73]      __sys_sendmsg+0xcd/0x170
[ 4557.315640][   T73]      do_syscall_64+0xc6/0x1e0
[ 4557.315640][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4557.315640][   T73] 
[ 4557.317902][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4557.317902][   T73]      netdev_get_by_index+0x5e/0x80
[ 4557.317902][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4557.317902][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4557.317902][   T73]      ip6_route_add+0x1c/0x140
[ 4557.317902][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4557.317902][   T73]      addrconf_add_dev+0xe2/0x170
[ 4557.317902][   T73]      inet6_addr_add+0x12f/0xa40
[ 4557.317902][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4557.317902][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4557.317902][   T73]      netlink_rcv_skb+0x130/0x360
[ 4557.317902][   T73]      netlink_unicast+0x449/0x710
[ 4557.317902][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4557.317902][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4557.317902][   T73]      ___sys_sendmsg+0xee/0x170
[ 4557.317902][   T73]      __sys_sendmsg+0xcd/0x170
[ 4557.317902][   T73]      do_syscall_64+0xc6/0x1e0
[ 4557.317902][   T73] 
[ 4557.320129][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4557.320129][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4557.320129][   T73]      ipv6_find_idev+0x102/0x170
[ 4557.320129][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4557.320129][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4557.320129][   T73]      netlink_rcv_skb+0x130/0x360
[ 4557.320129][   T73]      netlink_unicast+0x449/0x710
[ 4557.320129][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4557.320129][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4557.320129][   T73]      ___sys_sendmsg+0xee/0x170
[ 4557.320129][   T73]      __sys_sendmsg+0xcd/0x170
[ 4557.320129][   T73]      do_syscall_64+0xc6/0x1e0
[ 4557.320129][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4557.320129][   T73] 
[ 4557.321870][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4557.321870][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4557.321870][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4557.321870][   T73]      ipv6_find_idev+0x102/0x170
[ 4557.321870][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4557.321870][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4557.321870][   T73]      netlink_rcv_skb+0x130/0x360
[ 4557.321870][   T73]      netlink_unicast+0x449/0x710
[ 4557.321870][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4557.321870][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4557.321870][   T73]      ___sys_sendmsg+0xee/0x170
[ 4557.321870][   T73]      __sys_sendmsg+0xcd/0x170
[ 4557.321870][   T73]      do_syscall_64+0xc6/0x1e0
[ 4557.321870][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4557.321870][   T73] 
[ 4557.323802][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4557.324098][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4557.324098][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4557.324098][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4557.324098][   T73]      fib6_nh_init+0xa22/0x1580
[ 4557.324098][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4557.324098][   T73]      ip6_route_add+0x1c/0x140
[ 4557.324098][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4557.324098][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4557.324098][   T73]      netlink_rcv_skb+0x130/0x360
[ 4557.324098][   T73]      netlink_unicast+0x449/0x710
[ 4557.324098][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4557.324098][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4557.324098][   T73]      ___sys_sendmsg+0xee/0x170
[ 4557.324098][   T73]      __sys_sendmsg+0xcd/0x170
[ 4557.324098][   T73]      do_syscall_64+0xc6/0x1e0
[ 4557.324098][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4557.324098][   T73] 
[ 4557.326406][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4557.326406][   T73]      dst_init+0x84/0x4a0
[ 4557.326406][   T73]      dst_alloc+0x97/0x150
[ 4557.326406][   T73]      ip6_dst_alloc+0x23/0x90
[ 4557.326406][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4557.326406][   T73]      ip6_pol_route+0x56f/0x840
[ 4557.326406][   T73]      fib6_rule_lookup+0x456/0x630
[ 4557.326406][   T73]      ip6_route_input+0x59c/0xa50
[ 4557.326406][   T73]      ipv6_rcv+0x397/0x810
[ 4557.326406][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4557.326406][   T73]      process_backlog+0x101/0x620
[ 4557.326406][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4557.326406][   T73]      net_rx_action+0x495/0xbe0
[ 4557.326406][   T73]      __do_softirq+0x1b5/0x7f6
[ 4557.326406][   T73] 
[ 4557.328499][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4557.328499][   T73]      netdev_get_by_index+0x5e/0x80
[ 4557.328499][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4557.328499][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4557.328499][   T73]      ip6_route_add+0x1c/0x140
[ 4557.328499][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4557.328499][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4557.328499][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4557.328499][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4557.328499][   T73]      netlink_rcv_skb+0x130/0x360
[ 4557.328499][   T73]      netlink_unicast+0x449/0x710
[ 4557.328499][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4557.328499][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4557.328499][   T73]      ___sys_sendmsg+0xee/0x170
[ 4557.328499][   T73]      __sys_sendmsg+0xcd/0x170
[ 4557.328499][   T73]      do_syscall_64+0xc6/0x1e0
[ 4557.328499][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4557.328499][   T73] 
[ 4557.331027][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4557.331027][   T73]      netdev_get_by_index+0x5e/0x80
[ 4557.331027][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4557.331027][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4557.331027][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4557.331027][   T73]      ipv6_add_addr+0x411/0x2000
[ 4557.331027][   T73]      inet6_addr_add+0x30e/0xa40
[ 4557.331027][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4557.331027][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4557.331027][   T73]      netlink_rcv_skb+0x130/0x360
[ 4557.331027][   T73]      netlink_unicast+0x449/0x710
[ 4557.331027][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4557.331027][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4557.331027][   T73]      ___sys_sendmsg+0xee/0x170
[ 4557.331027][   T73]      __sys_sendmsg+0xcd/0x170
[ 4557.331027][   T73]      do_syscall_64+0xc6/0x1e0
[ 4557.331027][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4557.331027][   T73] 
[ 4557.333537][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4557.333537][   T73]      netdev_get_by_index+0x5e/0x80
[ 4557.333537][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4557.333537][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4557.333537][   T73]      ip6_route_add+0x1c/0x140
[ 4557.333537][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4557.333537][   T73]      addrconf_add_dev+0xe2/0x170
[ 4557.333537][   T73]      inet6_addr_add+0x12f/0xa40
[ 4557.333537][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4557.333537][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4557.333537][   T73]      netlink_rcv_skb+0x130/0x360
[ 4557.333537][   T73]      netlink_unicast+0x449/0x710
[ 4557.333537][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4557.333537][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4557.333537][   T73]      ___sys_sendmsg+0xee/0x170
[ 4557.333537][   T73]      __sys_sendmsg+0xcd/0x170
[ 4557.333537][   T73]      do_syscall_64+0xc6/0x1e0
[ 4557.333537][   T73] 
[ 4557.335941][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4557.335941][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4557.335941][   T73]      ipv6_find_idev+0x102/0x170
[ 4557.335941][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4557.335941][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4557.335941][   T73]      netlink_rcv_skb+0x130/0x360
[ 4557.335941][   T73]      netlink_unicast+0x449/0x710
[ 4557.335941][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4557.335941][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4557.335941][   T73]      ___sys_sendmsg+0xee/0x170
[ 4557.335941][   T73]      __sys_sendmsg+0xcd/0x170
[ 4557.335941][   T73]      do_syscall_64+0xc6/0x1e0
[ 4557.335941][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4557.335941][   T73] 
[ 4557.337930][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4557.337930][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4557.337930][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4557.337930][   T73]      ipv6_find_idev+0x102/0x170
[ 4557.337930][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4557.337930][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4557.337930][   T73]      netlink_rcv_skb+0x130/0x360
[ 4557.337930][   T73]      netlink_unicast+0x449/0x710
[ 4557.337930][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4557.337930][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4557.337930][   T73]      ___sys_sendmsg+0xee/0x170
[ 4557.337930][   T73]      __sys_sendmsg+0xcd/0x170
[ 4557.337930][   T73]      do_syscall_64+0xc6/0x1e0
[ 4557.337930][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4557.337930][   T73] 
[ 4557.340092][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4557.340398][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4557.340398][   T73]      netdev_get_by_index+0x5e/0x80
[ 4557.340398][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4557.340398][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4557.340398][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4557.340398][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4557.340398][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4557.340398][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4557.340398][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4557.340398][   T73]      addrconf_dad_begin+0x310/0x670
[ 4557.340398][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4557.340398][   T73]      process_one_work+0x84d/0x18a0
[ 4557.340398][   T73]      worker_thread+0x587/0xd30
[ 4557.340398][   T73]      kthread+0x28a/0x350
[ 4557.340398][   T73]      ret_from_fork+0x31/0x70
[ 4557.340398][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4557.340398][   T73] 
[ 4557.342809][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4557.342809][   T73]      netdev_get_by_index+0x5e/0x80
[ 4557.342809][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4557.342809][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4557.342809][   T73]      ip6_route_add+0x1c/0x140
[ 4557.342809][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4557.342809][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4557.342809][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4557.342809][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4557.342809][   T73]      netlink_rcv_skb+0x130/0x360
[ 4557.342809][   T73]      netlink_unicast+0x449/0x710
[ 4557.342809][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4557.342809][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4557.342809][   T73]      ___sys_sendmsg+0xee/0x170
[ 4557.342809][   T73]      __sys_sendmsg+0xcd/0x170
[ 4557.342809][   T73]      do_syscall_64+0xc6/0x1e0
[ 4557.342809][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4557.342809][   T73] 
[ 4557.345254][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4557.345254][   T73]      netdev_get_by_index+0x5e/0x80
[ 4557.345254][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4557.345254][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4557.345254][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4557.345254][   T73]      ipv6_add_addr+0x411/0x2000
[ 4557.345254][   T73]      inet6_addr_add+0x30e/0xa40
[ 4557.345254][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4557.345254][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4557.345254][   T73]      netlink_rcv_skb+0x130/0x360
[ 4557.345254][   T73]      netlink_unicast+0x449/0x710
[ 4557.345254][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4557.345254][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4557.345254][   T73]      ___sys_sendmsg+0xee/0x170
[ 4557.345254][   T73]      __sys_sendmsg+0xcd/0x170
[ 4557.345254][   T73]      do_syscall_64+0xc6/0x1e0
[ 4557.345254][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4557.345254][   T73] 
[ 4557.347787][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4557.347787][   T73]      netdev_get_by_index+0x5e/0x80
[ 4557.347787][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4557.347787][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4557.347787][   T73]      ip6_route_add+0x1c/0x140
[ 4557.347787][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4557.347787][   T73]      addrconf_add_dev+0xe2/0x170
[ 4557.347787][   T73]      inet6_addr_add+0x12f/0xa40
[ 4557.347787][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4557.347787][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4557.347787][   T73]      netlink_rcv_skb+0x130/0x360
[ 4557.347787][   T73]      netlink_unicast+0x449/0x710
[ 4557.347787][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4557.347787][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4557.347787][   T73]      ___sys_sendmsg+0xee/0x170
[ 4557.347787][   T73]      __sys_sendmsg+0xcd/0x170
[ 4557.347787][   T73]      do_syscall_64+0xc6/0x1e0
[ 4557.347787][   T73] 
[ 4557.350332][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4557.350332][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4557.350332][   T73]      ipv6_find_idev+0x102/0x170
[ 4557.350332][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4557.350332][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4557.350332][   T73]      netlink_rcv_skb+0x130/0x360
[ 4557.350332][   T73]      netlink_unicast+0x449/0x710
[ 4557.350332][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4557.350332][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4557.350332][   T73]      ___sys_sendmsg+0xee/0x170
[ 4557.350332][   T73]      __sys_sendmsg+0xcd/0x170
[ 4557.350332][   T73]      do_syscall_64+0xc6/0x1e0
[ 4557.350332][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4557.350332][   T73] 
[ 4557.352269][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4557.352269][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4557.352269][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4557.352269][   T73]      ipv6_find_idev+0x102/0x170
[ 4557.352269][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4557.352269][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4557.352269][   T73]      netlink_rcv_skb+0x130/0x360
[ 4557.352269][   T73]      netlink_unicast+0x449/0x710
[ 4557.352269][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4557.352269][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4557.352269][   T73]      ___sys_sendmsg+0xee/0x170
[ 4557.352269][   T73]      __sys_sendmsg+0xcd/0x170
[ 4557.352269][   T73]      do_syscall_64+0xc6/0x1e0
[ 4557.352269][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4557.352269][   T73] 
[ 4567.591775][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4567.592217][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4567.592217][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4567.592217][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4567.592217][   T73]      fib6_nh_init+0xa22/0x1580
[ 4567.592217][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4567.592217][   T73]      ip6_route_add+0x1c/0x140
[ 4567.592217][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4567.592217][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4567.592217][   T73]      netlink_rcv_skb+0x130/0x360
[ 4567.592217][   T73]      netlink_unicast+0x449/0x710
[ 4567.592217][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4567.592217][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4567.592217][   T73]      ___sys_sendmsg+0xee/0x170
[ 4567.592217][   T73]      __sys_sendmsg+0xcd/0x170
[ 4567.592217][   T73]      do_syscall_64+0xc6/0x1e0
[ 4567.592217][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4567.592217][   T73] 
[ 4567.594326][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4567.594326][   T73]      dst_init+0x84/0x4a0
[ 4567.594326][   T73]      dst_alloc+0x97/0x150
[ 4567.594326][   T73]      ip6_dst_alloc+0x23/0x90
[ 4567.594326][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4567.594326][   T73]      ip6_pol_route+0x56f/0x840
[ 4567.594326][   T73]      fib6_rule_lookup+0x456/0x630
[ 4567.594326][   T73]      ip6_route_input+0x59c/0xa50
[ 4567.594326][   T73]      ipv6_rcv+0x397/0x810
[ 4567.594326][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4567.594326][   T73]      process_backlog+0x101/0x620
[ 4567.594326][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4567.594326][   T73]      net_rx_action+0x495/0xbe0
[ 4567.594326][   T73]      __do_softirq+0x1b5/0x7f6
[ 4567.594326][   T73] 
[ 4567.595988][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4567.595988][   T73]      netdev_get_by_index+0x5e/0x80
[ 4567.595988][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4567.595988][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4567.595988][   T73]      ip6_route_add+0x1c/0x140
[ 4567.595988][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4567.595988][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4567.595988][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4567.595988][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4567.595988][   T73]      netlink_rcv_skb+0x130/0x360
[ 4567.595988][   T73]      netlink_unicast+0x449/0x710
[ 4567.595988][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4567.595988][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4567.595988][   T73]      ___sys_sendmsg+0xee/0x170
[ 4567.595988][   T73]      __sys_sendmsg+0xcd/0x170
[ 4567.595988][   T73]      do_syscall_64+0xc6/0x1e0
[ 4567.595988][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4567.595988][   T73] 
[ 4567.598015][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4567.598015][   T73]      netdev_get_by_index+0x5e/0x80
[ 4567.598015][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4567.598015][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4567.598015][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4567.598015][   T73]      ipv6_add_addr+0x411/0x2000
[ 4567.598015][   T73]      inet6_addr_add+0x30e/0xa40
[ 4567.598015][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4567.598015][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4567.598015][   T73]      netlink_rcv_skb+0x130/0x360
[ 4567.598015][   T73]      netlink_unicast+0x449/0x710
[ 4567.598015][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4567.598015][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4567.598015][   T73]      ___sys_sendmsg+0xee/0x170
[ 4567.598015][   T73]      __sys_sendmsg+0xcd/0x170
[ 4567.598015][   T73]      do_syscall_64+0xc6/0x1e0
[ 4567.598015][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4567.598015][   T73] 
[ 4567.600052][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4567.600052][   T73]      netdev_get_by_index+0x5e/0x80
[ 4567.600052][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4567.600052][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4567.600052][   T73]      ip6_route_add+0x1c/0x140
[ 4567.600052][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4567.600052][   T73]      addrconf_add_dev+0xe2/0x170
[ 4567.600052][   T73]      inet6_addr_add+0x12f/0xa40
[ 4567.600052][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4567.600052][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4567.600052][   T73]      netlink_rcv_skb+0x130/0x360
[ 4567.600052][   T73]      netlink_unicast+0x449/0x710
[ 4567.600052][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4567.600052][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4567.600052][   T73]      ___sys_sendmsg+0xee/0x170
[ 4567.600052][   T73]      __sys_sendmsg+0xcd/0x170
[ 4567.600052][   T73]      do_syscall_64+0xc6/0x1e0
[ 4567.600052][   T73] 
[ 4567.602062][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4567.602062][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4567.602062][   T73]      ipv6_find_idev+0x102/0x170
[ 4567.602062][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4567.602062][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4567.602062][   T73]      netlink_rcv_skb+0x130/0x360
[ 4567.602062][   T73]      netlink_unicast+0x449/0x710
[ 4567.602062][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4567.602062][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4567.602062][   T73]      ___sys_sendmsg+0xee/0x170
[ 4567.602062][   T73]      __sys_sendmsg+0xcd/0x170
[ 4567.602062][   T73]      do_syscall_64+0xc6/0x1e0
[ 4567.602062][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4567.602062][   T73] 
[ 4567.603626][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4567.603626][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4567.603626][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4567.603626][   T73]      ipv6_find_idev+0x102/0x170
[ 4567.603626][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4567.603626][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4567.603626][   T73]      netlink_rcv_skb+0x130/0x360
[ 4567.603626][   T73]      netlink_unicast+0x449/0x710
[ 4567.603626][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4567.603626][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4567.603626][   T73]      ___sys_sendmsg+0xee/0x170
[ 4567.603626][   T73]      __sys_sendmsg+0xcd/0x170
[ 4567.603626][   T73]      do_syscall_64+0xc6/0x1e0
[ 4567.603626][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4567.603626][   T73] 
[ 4567.605336][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4567.605609][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4567.605609][   T73]      netdev_get_by_index+0x5e/0x80
[ 4567.605609][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4567.605609][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4567.605609][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4567.605609][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4567.605609][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4567.605609][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4567.605609][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4567.605609][   T73]      addrconf_dad_begin+0x310/0x670
[ 4567.605609][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4567.605609][   T73]      process_one_work+0x84d/0x18a0
[ 4567.605609][   T73]      worker_thread+0x587/0xd30
[ 4567.605609][   T73]      kthread+0x28a/0x350
[ 4567.605609][   T73]      ret_from_fork+0x31/0x70
[ 4567.605609][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4567.605609][   T73] 
[ 4567.607569][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4567.607569][   T73]      netdev_get_by_index+0x5e/0x80
[ 4567.607569][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4567.607569][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4567.607569][   T73]      ip6_route_add+0x1c/0x140
[ 4567.607569][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4567.607569][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4567.607569][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4567.607569][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4567.607569][   T73]      netlink_rcv_skb+0x130/0x360
[ 4567.607569][   T73]      netlink_unicast+0x449/0x710
[ 4567.607569][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4567.607569][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4567.607569][   T73]      ___sys_sendmsg+0xee/0x170
[ 4567.607569][   T73]      __sys_sendmsg+0xcd/0x170
[ 4567.607569][   T73]      do_syscall_64+0xc6/0x1e0
[ 4567.607569][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4567.607569][   T73] 
[ 4567.609601][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4567.609601][   T73]      netdev_get_by_index+0x5e/0x80
[ 4567.609601][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4567.609601][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4567.609601][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4567.609601][   T73]      ipv6_add_addr+0x411/0x2000
[ 4567.609601][   T73]      inet6_addr_add+0x30e/0xa40
[ 4567.609601][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4567.609601][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4567.609601][   T73]      netlink_rcv_skb+0x130/0x360
[ 4567.609601][   T73]      netlink_unicast+0x449/0x710
[ 4567.609601][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4567.609601][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4567.609601][   T73]      ___sys_sendmsg+0xee/0x170
[ 4567.609601][   T73]      __sys_sendmsg+0xcd/0x170
[ 4567.609601][   T73]      do_syscall_64+0xc6/0x1e0
[ 4567.609601][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4567.609601][   T73] 
[ 4567.611629][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4567.611629][   T73]      netdev_get_by_index+0x5e/0x80
[ 4567.611629][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4567.611629][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4567.611629][   T73]      ip6_route_add+0x1c/0x140
[ 4567.611629][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4567.611629][   T73]      addrconf_add_dev+0xe2/0x170
[ 4567.611629][   T73]      inet6_addr_add+0x12f/0xa40
[ 4567.611629][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4567.611629][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4567.611629][   T73]      netlink_rcv_skb+0x130/0x360
[ 4567.611629][   T73]      netlink_unicast+0x449/0x710
[ 4567.611629][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4567.611629][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4567.611629][   T73]      ___sys_sendmsg+0xee/0x170
[ 4567.611629][   T73]      __sys_sendmsg+0xcd/0x170
[ 4567.611629][   T73]      do_syscall_64+0xc6/0x1e0
[ 4567.611629][   T73] 
[ 4567.613613][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4567.613613][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4567.613613][   T73]      ipv6_find_idev+0x102/0x170
[ 4567.613613][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4567.613613][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4567.613613][   T73]      netlink_rcv_skb+0x130/0x360
[ 4567.613613][   T73]      netlink_unicast+0x449/0x710
[ 4567.613613][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4567.613613][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4567.613613][   T73]      ___sys_sendmsg+0xee/0x170
[ 4567.613613][   T73]      __sys_sendmsg+0xcd/0x170
[ 4567.613613][   T73]      do_syscall_64+0xc6/0x1e0
[ 4567.613613][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4567.613613][   T73] 
[ 4567.615169][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4567.615169][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4567.615169][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4567.615169][   T73]      ipv6_find_idev+0x102/0x170
[ 4567.615169][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4567.615169][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4567.615169][   T73]      netlink_rcv_skb+0x130/0x360
[ 4567.615169][   T73]      netlink_unicast+0x449/0x710
[ 4567.615169][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4567.615169][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4567.615169][   T73]      ___sys_sendmsg+0xee/0x170
[ 4567.615169][   T73]      __sys_sendmsg+0xcd/0x170
[ 4567.615169][   T73]      do_syscall_64+0xc6/0x1e0
[ 4567.615169][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4567.615169][   T73] 
[ 4567.616877][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4567.617147][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4567.617147][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4567.617147][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4567.617147][   T73]      fib6_nh_init+0xa22/0x1580
[ 4567.617147][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4567.617147][   T73]      ip6_route_add+0x1c/0x140
[ 4567.617147][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4567.617147][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4567.617147][   T73]      netlink_rcv_skb+0x130/0x360
[ 4567.617147][   T73]      netlink_unicast+0x449/0x710
[ 4567.617147][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4567.617147][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4567.617147][   T73]      ___sys_sendmsg+0xee/0x170
[ 4567.617147][   T73]      __sys_sendmsg+0xcd/0x170
[ 4567.617147][   T73]      do_syscall_64+0xc6/0x1e0
[ 4567.617147][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4567.617147][   T73] 
[ 4567.619241][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4567.619241][   T73]      dst_init+0x84/0x4a0
[ 4567.619241][   T73]      dst_alloc+0x97/0x150
[ 4567.619241][   T73]      ip6_dst_alloc+0x23/0x90
[ 4567.619241][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4567.619241][   T73]      ip6_pol_route+0x56f/0x840
[ 4567.619241][   T73]      fib6_rule_lookup+0x456/0x630
[ 4567.619241][   T73]      ip6_route_input+0x59c/0xa50
[ 4567.619241][   T73]      ipv6_rcv+0x397/0x810
[ 4567.619241][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4567.619241][   T73]      process_backlog+0x101/0x620
[ 4567.619241][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4567.619241][   T73]      net_rx_action+0x495/0xbe0
[ 4567.619241][   T73]      __do_softirq+0x1b5/0x7f6
[ 4567.619241][   T73] 
[ 4567.621076][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4567.621076][   T73]      netdev_get_by_index+0x5e/0x80
[ 4567.621076][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4567.621076][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4567.621076][   T73]      ip6_route_add+0x1c/0x140
[ 4567.621076][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4567.621076][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4567.621076][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4567.621076][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4567.621076][   T73]      netlink_rcv_skb+0x130/0x360
[ 4567.621076][   T73]      netlink_unicast+0x449/0x710
[ 4567.621076][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4567.621076][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4567.621076][   T73]      ___sys_sendmsg+0xee/0x170
[ 4567.621076][   T73]      __sys_sendmsg+0xcd/0x170
[ 4567.621076][   T73]      do_syscall_64+0xc6/0x1e0
[ 4567.621076][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4567.621076][   T73] 
[ 4567.623365][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4567.623365][   T73]      netdev_get_by_index+0x5e/0x80
[ 4567.623365][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4567.623365][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4567.623365][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4567.623365][   T73]      ipv6_add_addr+0x411/0x2000
[ 4567.623365][   T73]      inet6_addr_add+0x30e/0xa40
[ 4567.623365][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4567.623365][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4567.623365][   T73]      netlink_rcv_skb+0x130/0x360
[ 4567.623365][   T73]      netlink_unicast+0x449/0x710
[ 4567.623365][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4567.623365][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4567.623365][   T73]      ___sys_sendmsg+0xee/0x170
[ 4567.623365][   T73]      __sys_sendmsg+0xcd/0x170
[ 4567.623365][   T73]      do_syscall_64+0xc6/0x1e0
[ 4567.623365][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4567.623365][   T73] 
[ 4567.625630][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4567.625630][   T73]      netdev_get_by_index+0x5e/0x80
[ 4567.625630][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4567.625630][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4567.625630][   T73]      ip6_route_add+0x1c/0x140
[ 4567.625630][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4567.625630][   T73]      addrconf_add_dev+0xe2/0x170
[ 4567.625630][   T73]      inet6_addr_add+0x12f/0xa40
[ 4567.625630][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4567.625630][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4567.625630][   T73]      netlink_rcv_skb+0x130/0x360
[ 4567.625630][   T73]      netlink_unicast+0x449/0x710
[ 4567.625630][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4567.625630][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4567.625630][   T73]      ___sys_sendmsg+0xee/0x170
[ 4567.625630][   T73]      __sys_sendmsg+0xcd/0x170
[ 4567.625630][   T73]      do_syscall_64+0xc6/0x1e0
[ 4567.625630][   T73] 
[ 4567.627860][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4567.627860][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4567.627860][   T73]      ipv6_find_idev+0x102/0x170
[ 4567.627860][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4567.627860][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4567.627860][   T73]      netlink_rcv_skb+0x130/0x360
[ 4567.627860][   T73]      netlink_unicast+0x449/0x710
[ 4567.627860][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4567.627860][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4567.627860][   T73]      ___sys_sendmsg+0xee/0x170
[ 4567.627860][   T73]      __sys_sendmsg+0xcd/0x170
[ 4567.627860][   T73]      do_syscall_64+0xc6/0x1e0
[ 4567.627860][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4567.627860][   T73] 
[ 4567.629605][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4567.629605][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4567.629605][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4567.629605][   T73]      ipv6_find_idev+0x102/0x170
[ 4567.629605][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4567.629605][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4567.629605][   T73]      netlink_rcv_skb+0x130/0x360
[ 4567.629605][   T73]      netlink_unicast+0x449/0x710
[ 4567.629605][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4567.629605][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4567.629605][   T73]      ___sys_sendmsg+0xee/0x170
[ 4567.629605][   T73]      __sys_sendmsg+0xcd/0x170
[ 4567.629605][   T73]      do_syscall_64+0xc6/0x1e0
[ 4567.629605][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4567.629605][   T73] 
[ 4567.631497][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4567.631848][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4567.631848][   T73]      netdev_get_by_index+0x5e/0x80
[ 4567.631848][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4567.631848][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4567.631848][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4567.631848][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4567.631848][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4567.631848][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4567.631848][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4567.631848][   T73]      addrconf_dad_begin+0x310/0x670
[ 4567.631848][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4567.631848][   T73]      process_one_work+0x84d/0x18a0
[ 4567.631848][   T73]      worker_thread+0x587/0xd30
[ 4567.631848][   T73]      kthread+0x28a/0x350
[ 4567.631848][   T73]      ret_from_fork+0x31/0x70
[ 4567.631848][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4567.631848][   T73] 
[ 4567.633913][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4567.633913][   T73]      netdev_get_by_index+0x5e/0x80
[ 4567.633913][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4567.633913][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4567.633913][   T73]      ip6_route_add+0x1c/0x140
[ 4567.633913][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4567.633913][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4567.633913][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4567.633913][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4567.633913][   T73]      netlink_rcv_skb+0x130/0x360
[ 4567.633913][   T73]      netlink_unicast+0x449/0x710
[ 4567.633913][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4567.633913][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4567.633913][   T73]      ___sys_sendmsg+0xee/0x170
[ 4567.633913][   T73]      __sys_sendmsg+0xcd/0x170
[ 4567.633913][   T73]      do_syscall_64+0xc6/0x1e0
[ 4567.633913][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4567.633913][   T73] 
[ 4567.636237][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4567.636237][   T73]      netdev_get_by_index+0x5e/0x80
[ 4567.636237][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4567.636237][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4567.636237][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4567.636237][   T73]      ipv6_add_addr+0x411/0x2000
[ 4567.636237][   T73]      inet6_addr_add+0x30e/0xa40
[ 4567.636237][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4567.636237][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4567.636237][   T73]      netlink_rcv_skb+0x130/0x360
[ 4567.636237][   T73]      netlink_unicast+0x449/0x710
[ 4567.636237][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4567.636237][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4567.636237][   T73]      ___sys_sendmsg+0xee/0x170
[ 4567.636237][   T73]      __sys_sendmsg+0xcd/0x170
[ 4567.636237][   T73]      do_syscall_64+0xc6/0x1e0
[ 4567.636237][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4567.636237][   T73] 
[ 4567.638492][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4567.638492][   T73]      netdev_get_by_index+0x5e/0x80
[ 4567.638492][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4567.638492][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4567.638492][   T73]      ip6_route_add+0x1c/0x140
[ 4567.638492][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4567.638492][   T73]      addrconf_add_dev+0xe2/0x170
[ 4567.638492][   T73]      inet6_addr_add+0x12f/0xa40
[ 4567.638492][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4567.638492][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4567.638492][   T73]      netlink_rcv_skb+0x130/0x360
[ 4567.638492][   T73]      netlink_unicast+0x449/0x710
[ 4567.638492][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4567.638492][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4567.638492][   T73]      ___sys_sendmsg+0xee/0x170
[ 4567.638492][   T73]      __sys_sendmsg+0xcd/0x170
[ 4567.638492][   T73]      do_syscall_64+0xc6/0x1e0
[ 4567.638492][   T73] 
[ 4567.640716][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4567.640716][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4567.640716][   T73]      ipv6_find_idev+0x102/0x170
[ 4567.640716][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4567.640716][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4567.640716][   T73]      netlink_rcv_skb+0x130/0x360
[ 4567.640716][   T73]      netlink_unicast+0x449/0x710
[ 4567.640716][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4567.640716][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4567.640716][   T73]      ___sys_sendmsg+0xee/0x170
[ 4567.640716][   T73]      __sys_sendmsg+0xcd/0x170
[ 4567.640716][   T73]      do_syscall_64+0xc6/0x1e0
[ 4567.640716][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4567.640716][   T73] 
[ 4567.642454][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4567.642454][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4567.642454][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4567.642454][   T73]      ipv6_find_idev+0x102/0x170
[ 4567.642454][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4567.642454][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4567.642454][   T73]      netlink_rcv_skb+0x130/0x360
[ 4567.642454][   T73]      netlink_unicast+0x449/0x710
[ 4567.642454][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4567.642454][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4567.642454][   T73]      ___sys_sendmsg+0xee/0x170
[ 4567.642454][   T73]      __sys_sendmsg+0xcd/0x170
[ 4567.642454][   T73]      do_syscall_64+0xc6/0x1e0
[ 4567.642454][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4567.642454][   T73] 
[ 4577.679720][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4577.680115][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4577.680115][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4577.680115][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4577.680115][   T73]      fib6_nh_init+0xa22/0x1580
[ 4577.680115][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4577.680115][   T73]      ip6_route_add+0x1c/0x140
[ 4577.680115][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4577.680115][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4577.680115][   T73]      netlink_rcv_skb+0x130/0x360
[ 4577.680115][   T73]      netlink_unicast+0x449/0x710
[ 4577.680115][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4577.680115][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4577.680115][   T73]      ___sys_sendmsg+0xee/0x170
[ 4577.680115][   T73]      __sys_sendmsg+0xcd/0x170
[ 4577.680115][   T73]      do_syscall_64+0xc6/0x1e0
[ 4577.680115][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4577.680115][   T73] 
[ 4577.682107][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4577.682107][   T73]      dst_init+0x84/0x4a0
[ 4577.682107][   T73]      dst_alloc+0x97/0x150
[ 4577.682107][   T73]      ip6_dst_alloc+0x23/0x90
[ 4577.682107][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4577.682107][   T73]      ip6_pol_route+0x56f/0x840
[ 4577.682107][   T73]      fib6_rule_lookup+0x456/0x630
[ 4577.682107][   T73]      ip6_route_input+0x59c/0xa50
[ 4577.682107][   T73]      ipv6_rcv+0x397/0x810
[ 4577.682107][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4577.682107][   T73]      process_backlog+0x101/0x620
[ 4577.682107][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4577.682107][   T73]      net_rx_action+0x495/0xbe0
[ 4577.682107][   T73]      __do_softirq+0x1b5/0x7f6
[ 4577.682107][   T73] 
[ 4577.683811][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4577.683811][   T73]      netdev_get_by_index+0x5e/0x80
[ 4577.683811][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4577.683811][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4577.683811][   T73]      ip6_route_add+0x1c/0x140
[ 4577.683811][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4577.683811][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4577.683811][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4577.683811][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4577.683811][   T73]      netlink_rcv_skb+0x130/0x360
[ 4577.683811][   T73]      netlink_unicast+0x449/0x710
[ 4577.683811][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4577.683811][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4577.683811][   T73]      ___sys_sendmsg+0xee/0x170
[ 4577.683811][   T73]      __sys_sendmsg+0xcd/0x170
[ 4577.683811][   T73]      do_syscall_64+0xc6/0x1e0
[ 4577.683811][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4577.683811][   T73] 
[ 4577.685904][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4577.685904][   T73]      netdev_get_by_index+0x5e/0x80
[ 4577.685904][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4577.685904][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4577.685904][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4577.685904][   T73]      ipv6_add_addr+0x411/0x2000
[ 4577.685904][   T73]      inet6_addr_add+0x30e/0xa40
[ 4577.685904][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4577.685904][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4577.685904][   T73]      netlink_rcv_skb+0x130/0x360
[ 4577.685904][   T73]      netlink_unicast+0x449/0x710
[ 4577.685904][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4577.685904][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4577.685904][   T73]      ___sys_sendmsg+0xee/0x170
[ 4577.685904][   T73]      __sys_sendmsg+0xcd/0x170
[ 4577.685904][   T73]      do_syscall_64+0xc6/0x1e0
[ 4577.685904][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4577.685904][   T73] 
[ 4577.688050][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4577.688050][   T73]      netdev_get_by_index+0x5e/0x80
[ 4577.688050][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4577.688050][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4577.688050][   T73]      ip6_route_add+0x1c/0x140
[ 4577.688050][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4577.688050][   T73]      addrconf_add_dev+0xe2/0x170
[ 4577.688050][   T73]      inet6_addr_add+0x12f/0xa40
[ 4577.688050][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4577.688050][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4577.688050][   T73]      netlink_rcv_skb+0x130/0x360
[ 4577.688050][   T73]      netlink_unicast+0x449/0x710
[ 4577.688050][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4577.688050][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4577.688050][   T73]      ___sys_sendmsg+0xee/0x170
[ 4577.688050][   T73]      __sys_sendmsg+0xcd/0x170
[ 4577.688050][   T73]      do_syscall_64+0xc6/0x1e0
[ 4577.688050][   T73] 
[ 4577.690178][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4577.690178][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4577.690178][   T73]      ipv6_find_idev+0x102/0x170
[ 4577.690178][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4577.690178][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4577.690178][   T73]      netlink_rcv_skb+0x130/0x360
[ 4577.690178][   T73]      netlink_unicast+0x449/0x710
[ 4577.690178][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4577.690178][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4577.690178][   T73]      ___sys_sendmsg+0xee/0x170
[ 4577.690178][   T73]      __sys_sendmsg+0xcd/0x170
[ 4577.690178][   T73]      do_syscall_64+0xc6/0x1e0
[ 4577.690178][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4577.690178][   T73] 
[ 4577.691859][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4577.691859][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4577.691859][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4577.691859][   T73]      ipv6_find_idev+0x102/0x170
[ 4577.691859][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4577.691859][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4577.691859][   T73]      netlink_rcv_skb+0x130/0x360
[ 4577.691859][   T73]      netlink_unicast+0x449/0x710
[ 4577.691859][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4577.691859][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4577.691859][   T73]      ___sys_sendmsg+0xee/0x170
[ 4577.691859][   T73]      __sys_sendmsg+0xcd/0x170
[ 4577.691859][   T73]      do_syscall_64+0xc6/0x1e0
[ 4577.691859][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4577.691859][   T73] 
[ 4577.693703][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4577.693995][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4577.693995][   T73]      netdev_get_by_index+0x5e/0x80
[ 4577.693995][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4577.693995][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4577.693995][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4577.693995][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4577.693995][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4577.693995][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4577.693995][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4577.693995][   T73]      addrconf_dad_begin+0x310/0x670
[ 4577.693995][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4577.693995][   T73]      process_one_work+0x84d/0x18a0
[ 4577.693995][   T73]      worker_thread+0x587/0xd30
[ 4577.693995][   T73]      kthread+0x28a/0x350
[ 4577.693995][   T73]      ret_from_fork+0x31/0x70
[ 4577.693995][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4577.693995][   T73] 
[ 4577.696057][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4577.696057][   T73]      netdev_get_by_index+0x5e/0x80
[ 4577.696057][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4577.696057][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4577.696057][   T73]      ip6_route_add+0x1c/0x140
[ 4577.696057][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4577.696057][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4577.696057][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4577.696057][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4577.696057][   T73]      netlink_rcv_skb+0x130/0x360
[ 4577.696057][   T73]      netlink_unicast+0x449/0x710
[ 4577.696057][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4577.696057][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4577.696057][   T73]      ___sys_sendmsg+0xee/0x170
[ 4577.696057][   T73]      __sys_sendmsg+0xcd/0x170
[ 4577.696057][   T73]      do_syscall_64+0xc6/0x1e0
[ 4577.696057][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4577.696057][   T73] 
[ 4577.698343][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4577.698343][   T73]      netdev_get_by_index+0x5e/0x80
[ 4577.698343][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4577.698343][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4577.698343][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4577.698343][   T73]      ipv6_add_addr+0x411/0x2000
[ 4577.698343][   T73]      inet6_addr_add+0x30e/0xa40
[ 4577.698343][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4577.698343][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4577.698343][   T73]      netlink_rcv_skb+0x130/0x360
[ 4577.698343][   T73]      netlink_unicast+0x449/0x710
[ 4577.698343][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4577.698343][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4577.698343][   T73]      ___sys_sendmsg+0xee/0x170
[ 4577.698343][   T73]      __sys_sendmsg+0xcd/0x170
[ 4577.698343][   T73]      do_syscall_64+0xc6/0x1e0
[ 4577.698343][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4577.698343][   T73] 
[ 4577.700438][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4577.700438][   T73]      netdev_get_by_index+0x5e/0x80
[ 4577.700438][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4577.700438][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4577.700438][   T73]      ip6_route_add+0x1c/0x140
[ 4577.700438][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4577.700438][   T73]      addrconf_add_dev+0xe2/0x170
[ 4577.700438][   T73]      inet6_addr_add+0x12f/0xa40
[ 4577.700438][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4577.700438][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4577.700438][   T73]      netlink_rcv_skb+0x130/0x360
[ 4577.700438][   T73]      netlink_unicast+0x449/0x710
[ 4577.700438][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4577.700438][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4577.700438][   T73]      ___sys_sendmsg+0xee/0x170
[ 4577.700438][   T73]      __sys_sendmsg+0xcd/0x170
[ 4577.700438][   T73]      do_syscall_64+0xc6/0x1e0
[ 4577.700438][   T73] 
[ 4577.702455][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4577.702455][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4577.702455][   T73]      ipv6_find_idev+0x102/0x170
[ 4577.702455][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4577.702455][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4577.702455][   T73]      netlink_rcv_skb+0x130/0x360
[ 4577.702455][   T73]      netlink_unicast+0x449/0x710
[ 4577.702455][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4577.702455][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4577.702455][   T73]      ___sys_sendmsg+0xee/0x170
[ 4577.702455][   T73]      __sys_sendmsg+0xcd/0x170
[ 4577.702455][   T73]      do_syscall_64+0xc6/0x1e0
[ 4577.702455][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4577.702455][   T73] 
[ 4577.704043][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4577.704043][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4577.704043][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4577.704043][   T73]      ipv6_find_idev+0x102/0x170
[ 4577.704043][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4577.704043][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4577.704043][   T73]      netlink_rcv_skb+0x130/0x360
[ 4577.704043][   T73]      netlink_unicast+0x449/0x710
[ 4577.704043][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4577.704043][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4577.704043][   T73]      ___sys_sendmsg+0xee/0x170
[ 4577.704043][   T73]      __sys_sendmsg+0xcd/0x170
[ 4577.704043][   T73]      do_syscall_64+0xc6/0x1e0
[ 4577.704043][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4577.704043][   T73] 
[ 4577.705872][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4577.706159][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4577.706159][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4577.706159][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4577.706159][   T73]      fib6_nh_init+0xa22/0x1580
[ 4577.706159][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4577.706159][   T73]      ip6_route_add+0x1c/0x140
[ 4577.706159][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4577.706159][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4577.706159][   T73]      netlink_rcv_skb+0x130/0x360
[ 4577.706159][   T73]      netlink_unicast+0x449/0x710
[ 4577.706159][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4577.706159][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4577.706159][   T73]      ___sys_sendmsg+0xee/0x170
[ 4577.706159][   T73]      __sys_sendmsg+0xcd/0x170
[ 4577.706159][   T73]      do_syscall_64+0xc6/0x1e0
[ 4577.706159][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4577.706159][   T73] 
[ 4577.708393][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4577.708393][   T73]      dst_init+0x84/0x4a0
[ 4577.708393][   T73]      dst_alloc+0x97/0x150
[ 4577.708393][   T73]      ip6_dst_alloc+0x23/0x90
[ 4577.708393][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4577.708393][   T73]      ip6_pol_route+0x56f/0x840
[ 4577.708393][   T73]      fib6_rule_lookup+0x456/0x630
[ 4577.708393][   T73]      ip6_route_input+0x59c/0xa50
[ 4577.708393][   T73]      ipv6_rcv+0x397/0x810
[ 4577.708393][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4577.708393][   T73]      process_backlog+0x101/0x620
[ 4577.708393][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4577.708393][   T73]      net_rx_action+0x495/0xbe0
[ 4577.708393][   T73]      __do_softirq+0x1b5/0x7f6
[ 4577.708393][   T73] 
[ 4577.710426][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4577.710426][   T73]      netdev_get_by_index+0x5e/0x80
[ 4577.710426][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4577.710426][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4577.710426][   T73]      ip6_route_add+0x1c/0x140
[ 4577.710426][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4577.710426][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4577.710426][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4577.710426][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4577.710426][   T73]      netlink_rcv_skb+0x130/0x360
[ 4577.710426][   T73]      netlink_unicast+0x449/0x710
[ 4577.710426][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4577.710426][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4577.710426][   T73]      ___sys_sendmsg+0xee/0x170
[ 4577.710426][   T73]      __sys_sendmsg+0xcd/0x170
[ 4577.710426][   T73]      do_syscall_64+0xc6/0x1e0
[ 4577.710426][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4577.710426][   T73] 
[ 4577.712879][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4577.712879][   T73]      netdev_get_by_index+0x5e/0x80
[ 4577.712879][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4577.712879][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4577.712879][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4577.712879][   T73]      ipv6_add_addr+0x411/0x2000
[ 4577.712879][   T73]      inet6_addr_add+0x30e/0xa40
[ 4577.712879][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4577.712879][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4577.712879][   T73]      netlink_rcv_skb+0x130/0x360
[ 4577.712879][   T73]      netlink_unicast+0x449/0x710
[ 4577.712879][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4577.712879][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4577.712879][   T73]      ___sys_sendmsg+0xee/0x170
[ 4577.712879][   T73]      __sys_sendmsg+0xcd/0x170
[ 4577.712879][   T73]      do_syscall_64+0xc6/0x1e0
[ 4577.712879][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4577.712879][   T73] 
[ 4577.715234][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4577.715234][   T73]      netdev_get_by_index+0x5e/0x80
[ 4577.715234][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4577.715234][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4577.715234][   T73]      ip6_route_add+0x1c/0x140
[ 4577.715234][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4577.715234][   T73]      addrconf_add_dev+0xe2/0x170
[ 4577.715234][   T73]      inet6_addr_add+0x12f/0xa40
[ 4577.715234][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4577.715234][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4577.715234][   T73]      netlink_rcv_skb+0x130/0x360
[ 4577.715234][   T73]      netlink_unicast+0x449/0x710
[ 4577.715234][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4577.715234][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4577.715234][   T73]      ___sys_sendmsg+0xee/0x170
[ 4577.715234][   T73]      __sys_sendmsg+0xcd/0x170
[ 4577.715234][   T73]      do_syscall_64+0xc6/0x1e0
[ 4577.715234][   T73] 
[ 4577.717595][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4577.717595][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4577.717595][   T73]      ipv6_find_idev+0x102/0x170
[ 4577.717595][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4577.717595][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4577.717595][   T73]      netlink_rcv_skb+0x130/0x360
[ 4577.717595][   T73]      netlink_unicast+0x449/0x710
[ 4577.717595][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4577.717595][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4577.717595][   T73]      ___sys_sendmsg+0xee/0x170
[ 4577.717595][   T73]      __sys_sendmsg+0xcd/0x170
[ 4577.717595][   T73]      do_syscall_64+0xc6/0x1e0
[ 4577.717595][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4577.717595][   T73] 
[ 4577.719457][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4577.719457][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4577.719457][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4577.719457][   T73]      ipv6_find_idev+0x102/0x170
[ 4577.719457][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4577.719457][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4577.719457][   T73]      netlink_rcv_skb+0x130/0x360
[ 4577.719457][   T73]      netlink_unicast+0x449/0x710
[ 4577.719457][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4577.719457][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4577.719457][   T73]      ___sys_sendmsg+0xee/0x170
[ 4577.719457][   T73]      __sys_sendmsg+0xcd/0x170
[ 4577.719457][   T73]      do_syscall_64+0xc6/0x1e0
[ 4577.719457][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4577.719457][   T73] 
[ 4577.721399][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4577.722183][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4577.722183][   T73]      netdev_get_by_index+0x5e/0x80
[ 4577.722183][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4577.722183][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4577.722183][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4577.722183][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4577.722183][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4577.722183][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4577.722183][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4577.722183][   T73]      addrconf_dad_begin+0x310/0x670
[ 4577.722183][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4577.722183][   T73]      process_one_work+0x84d/0x18a0
[ 4577.722183][   T73]      worker_thread+0x587/0xd30
[ 4577.722183][   T73]      kthread+0x28a/0x350
[ 4577.722183][   T73]      ret_from_fork+0x31/0x70
[ 4577.722183][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4577.722183][   T73] 
[ 4577.724184][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4577.724184][   T73]      netdev_get_by_index+0x5e/0x80
[ 4577.724184][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4577.724184][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4577.724184][   T73]      ip6_route_add+0x1c/0x140
[ 4577.724184][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4577.724184][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4577.724184][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4577.724184][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4577.724184][   T73]      netlink_rcv_skb+0x130/0x360
[ 4577.724184][   T73]      netlink_unicast+0x449/0x710
[ 4577.724184][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4577.724184][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4577.724184][   T73]      ___sys_sendmsg+0xee/0x170
[ 4577.724184][   T73]      __sys_sendmsg+0xcd/0x170
[ 4577.724184][   T73]      do_syscall_64+0xc6/0x1e0
[ 4577.724184][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4577.724184][   T73] 
[ 4577.726432][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4577.726432][   T73]      netdev_get_by_index+0x5e/0x80
[ 4577.726432][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4577.726432][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4577.726432][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4577.726432][   T73]      ipv6_add_addr+0x411/0x2000
[ 4577.726432][   T73]      inet6_addr_add+0x30e/0xa40
[ 4577.726432][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4577.726432][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4577.726432][   T73]      netlink_rcv_skb+0x130/0x360
[ 4577.726432][   T73]      netlink_unicast+0x449/0x710
[ 4577.726432][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4577.726432][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4577.726432][   T73]      ___sys_sendmsg+0xee/0x170
[ 4577.726432][   T73]      __sys_sendmsg+0xcd/0x170
[ 4577.726432][   T73]      do_syscall_64+0xc6/0x1e0
[ 4577.726432][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4577.726432][   T73] 
[ 4577.728872][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4577.728872][   T73]      netdev_get_by_index+0x5e/0x80
[ 4577.728872][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4577.728872][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4577.728872][   T73]      ip6_route_add+0x1c/0x140
[ 4577.728872][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4577.728872][   T73]      addrconf_add_dev+0xe2/0x170
[ 4577.728872][   T73]      inet6_addr_add+0x12f/0xa40
[ 4577.728872][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4577.728872][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4577.728872][   T73]      netlink_rcv_skb+0x130/0x360
[ 4577.728872][   T73]      netlink_unicast+0x449/0x710
[ 4577.728872][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4577.728872][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4577.728872][   T73]      ___sys_sendmsg+0xee/0x170
[ 4577.728872][   T73]      __sys_sendmsg+0xcd/0x170
[ 4577.728872][   T73]      do_syscall_64+0xc6/0x1e0
[ 4577.728872][   T73] 
[ 4577.731219][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4577.731219][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4577.731219][   T73]      ipv6_find_idev+0x102/0x170
[ 4577.731219][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4577.731219][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4577.731219][   T73]      netlink_rcv_skb+0x130/0x360
[ 4577.731219][   T73]      netlink_unicast+0x449/0x710
[ 4577.731219][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4577.731219][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4577.731219][   T73]      ___sys_sendmsg+0xee/0x170
[ 4577.731219][   T73]      __sys_sendmsg+0xcd/0x170
[ 4577.731219][   T73]      do_syscall_64+0xc6/0x1e0
[ 4577.731219][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4577.731219][   T73] 
[ 4577.733112][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4577.733112][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4577.733112][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4577.733112][   T73]      ipv6_find_idev+0x102/0x170
[ 4577.733112][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4577.733112][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4577.733112][   T73]      netlink_rcv_skb+0x130/0x360
[ 4577.733112][   T73]      netlink_unicast+0x449/0x710
[ 4577.733112][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4577.733112][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4577.733112][   T73]      ___sys_sendmsg+0xee/0x170
[ 4577.733112][   T73]      __sys_sendmsg+0xcd/0x170
[ 4577.733112][   T73]      do_syscall_64+0xc6/0x1e0
[ 4577.733112][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4577.733112][   T73] 
[ 4587.895707][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4587.896113][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4587.896113][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4587.896113][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4587.896113][   T73]      fib6_nh_init+0xa22/0x1580
[ 4587.896113][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4587.896113][   T73]      ip6_route_add+0x1c/0x140
[ 4587.896113][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4587.896113][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4587.896113][   T73]      netlink_rcv_skb+0x130/0x360
[ 4587.896113][   T73]      netlink_unicast+0x449/0x710
[ 4587.896113][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4587.896113][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4587.896113][   T73]      ___sys_sendmsg+0xee/0x170
[ 4587.896113][   T73]      __sys_sendmsg+0xcd/0x170
[ 4587.896113][   T73]      do_syscall_64+0xc6/0x1e0
[ 4587.896113][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4587.896113][   T73] 
[ 4587.898061][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4587.898061][   T73]      dst_init+0x84/0x4a0
[ 4587.898061][   T73]      dst_alloc+0x97/0x150
[ 4587.898061][   T73]      ip6_dst_alloc+0x23/0x90
[ 4587.898061][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4587.898061][   T73]      ip6_pol_route+0x56f/0x840
[ 4587.898061][   T73]      fib6_rule_lookup+0x456/0x630
[ 4587.898061][   T73]      ip6_route_input+0x59c/0xa50
[ 4587.898061][   T73]      ipv6_rcv+0x397/0x810
[ 4587.898061][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4587.898061][   T73]      process_backlog+0x101/0x620
[ 4587.898061][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4587.898061][   T73]      net_rx_action+0x495/0xbe0
[ 4587.898061][   T73]      __do_softirq+0x1b5/0x7f6
[ 4587.898061][   T73] 
[ 4587.899720][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4587.899720][   T73]      netdev_get_by_index+0x5e/0x80
[ 4587.899720][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4587.899720][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4587.899720][   T73]      ip6_route_add+0x1c/0x140
[ 4587.899720][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4587.899720][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4587.899720][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4587.899720][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4587.899720][   T73]      netlink_rcv_skb+0x130/0x360
[ 4587.899720][   T73]      netlink_unicast+0x449/0x710
[ 4587.899720][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4587.899720][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4587.899720][   T73]      ___sys_sendmsg+0xee/0x170
[ 4587.899720][   T73]      __sys_sendmsg+0xcd/0x170
[ 4587.899720][   T73]      do_syscall_64+0xc6/0x1e0
[ 4587.899720][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4587.899720][   T73] 
[ 4587.901748][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4587.901748][   T73]      netdev_get_by_index+0x5e/0x80
[ 4587.901748][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4587.901748][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4587.901748][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4587.901748][   T73]      ipv6_add_addr+0x411/0x2000
[ 4587.901748][   T73]      inet6_addr_add+0x30e/0xa40
[ 4587.901748][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4587.901748][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4587.901748][   T73]      netlink_rcv_skb+0x130/0x360
[ 4587.901748][   T73]      netlink_unicast+0x449/0x710
[ 4587.901748][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4587.901748][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4587.901748][   T73]      ___sys_sendmsg+0xee/0x170
[ 4587.901748][   T73]      __sys_sendmsg+0xcd/0x170
[ 4587.901748][   T73]      do_syscall_64+0xc6/0x1e0
[ 4587.901748][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4587.901748][   T73] 
[ 4587.903816][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4587.903816][   T73]      netdev_get_by_index+0x5e/0x80
[ 4587.903816][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4587.903816][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4587.903816][   T73]      ip6_route_add+0x1c/0x140
[ 4587.903816][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4587.903816][   T73]      addrconf_add_dev+0xe2/0x170
[ 4587.903816][   T73]      inet6_addr_add+0x12f/0xa40
[ 4587.903816][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4587.903816][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4587.903816][   T73]      netlink_rcv_skb+0x130/0x360
[ 4587.903816][   T73]      netlink_unicast+0x449/0x710
[ 4587.903816][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4587.903816][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4587.903816][   T73]      ___sys_sendmsg+0xee/0x170
[ 4587.903816][   T73]      __sys_sendmsg+0xcd/0x170
[ 4587.903816][   T73]      do_syscall_64+0xc6/0x1e0
[ 4587.903816][   T73] 
[ 4587.905819][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4587.905819][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4587.905819][   T73]      ipv6_find_idev+0x102/0x170
[ 4587.905819][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4587.905819][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4587.905819][   T73]      netlink_rcv_skb+0x130/0x360
[ 4587.905819][   T73]      netlink_unicast+0x449/0x710
[ 4587.905819][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4587.905819][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4587.905819][   T73]      ___sys_sendmsg+0xee/0x170
[ 4587.905819][   T73]      __sys_sendmsg+0xcd/0x170
[ 4587.905819][   T73]      do_syscall_64+0xc6/0x1e0
[ 4587.905819][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4587.905819][   T73] 
[ 4587.907380][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4587.907380][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4587.907380][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4587.907380][   T73]      ipv6_find_idev+0x102/0x170
[ 4587.907380][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4587.907380][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4587.907380][   T73]      netlink_rcv_skb+0x130/0x360
[ 4587.907380][   T73]      netlink_unicast+0x449/0x710
[ 4587.907380][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4587.907380][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4587.907380][   T73]      ___sys_sendmsg+0xee/0x170
[ 4587.907380][   T73]      __sys_sendmsg+0xcd/0x170
[ 4587.907380][   T73]      do_syscall_64+0xc6/0x1e0
[ 4587.907380][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4587.907380][   T73] 
[ 4587.909108][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4587.909403][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4587.909403][   T73]      netdev_get_by_index+0x5e/0x80
[ 4587.909403][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4587.909403][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4587.909403][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4587.909403][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4587.909403][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4587.909403][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4587.909403][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4587.909403][   T73]      addrconf_dad_begin+0x310/0x670
[ 4587.909403][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4587.909403][   T73]      process_one_work+0x84d/0x18a0
[ 4587.909403][   T73]      worker_thread+0x587/0xd30
[ 4587.909403][   T73]      kthread+0x28a/0x350
[ 4587.909403][   T73]      ret_from_fork+0x31/0x70
[ 4587.909403][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4587.909403][   T73] 
[ 4587.911352][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4587.911352][   T73]      netdev_get_by_index+0x5e/0x80
[ 4587.911352][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4587.911352][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4587.911352][   T73]      ip6_route_add+0x1c/0x140
[ 4587.911352][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4587.911352][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4587.911352][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4587.911352][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4587.911352][   T73]      netlink_rcv_skb+0x130/0x360
[ 4587.911352][   T73]      netlink_unicast+0x449/0x710
[ 4587.911352][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4587.911352][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4587.911352][   T73]      ___sys_sendmsg+0xee/0x170
[ 4587.911352][   T73]      __sys_sendmsg+0xcd/0x170
[ 4587.911352][   T73]      do_syscall_64+0xc6/0x1e0
[ 4587.911352][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4587.911352][   T73] 
[ 4587.913382][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4587.913382][   T73]      netdev_get_by_index+0x5e/0x80
[ 4587.913382][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4587.913382][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4587.913382][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4587.913382][   T73]      ipv6_add_addr+0x411/0x2000
[ 4587.913382][   T73]      inet6_addr_add+0x30e/0xa40
[ 4587.913382][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4587.913382][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4587.913382][   T73]      netlink_rcv_skb+0x130/0x360
[ 4587.913382][   T73]      netlink_unicast+0x449/0x710
[ 4587.913382][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4587.913382][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4587.913382][   T73]      ___sys_sendmsg+0xee/0x170
[ 4587.913382][   T73]      __sys_sendmsg+0xcd/0x170
[ 4587.913382][   T73]      do_syscall_64+0xc6/0x1e0
[ 4587.913382][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4587.913382][   T73] 
[ 4587.915519][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4587.915519][   T73]      netdev_get_by_index+0x5e/0x80
[ 4587.915519][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4587.915519][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4587.915519][   T73]      ip6_route_add+0x1c/0x140
[ 4587.915519][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4587.915519][   T73]      addrconf_add_dev+0xe2/0x170
[ 4587.915519][   T73]      inet6_addr_add+0x12f/0xa40
[ 4587.915519][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4587.915519][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4587.915519][   T73]      netlink_rcv_skb+0x130/0x360
[ 4587.915519][   T73]      netlink_unicast+0x449/0x710
[ 4587.915519][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4587.915519][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4587.915519][   T73]      ___sys_sendmsg+0xee/0x170
[ 4587.915519][   T73]      __sys_sendmsg+0xcd/0x170
[ 4587.915519][   T73]      do_syscall_64+0xc6/0x1e0
[ 4587.915519][   T73] 
[ 4587.917515][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4587.917515][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4587.917515][   T73]      ipv6_find_idev+0x102/0x170
[ 4587.917515][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4587.917515][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4587.917515][   T73]      netlink_rcv_skb+0x130/0x360
[ 4587.917515][   T73]      netlink_unicast+0x449/0x710
[ 4587.917515][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4587.917515][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4587.917515][   T73]      ___sys_sendmsg+0xee/0x170
[ 4587.917515][   T73]      __sys_sendmsg+0xcd/0x170
[ 4587.917515][   T73]      do_syscall_64+0xc6/0x1e0
[ 4587.917515][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4587.917515][   T73] 
[ 4587.919085][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4587.919085][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4587.919085][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4587.919085][   T73]      ipv6_find_idev+0x102/0x170
[ 4587.919085][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4587.919085][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4587.919085][   T73]      netlink_rcv_skb+0x130/0x360
[ 4587.919085][   T73]      netlink_unicast+0x449/0x710
[ 4587.919085][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4587.919085][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4587.919085][   T73]      ___sys_sendmsg+0xee/0x170
[ 4587.919085][   T73]      __sys_sendmsg+0xcd/0x170
[ 4587.919085][   T73]      do_syscall_64+0xc6/0x1e0
[ 4587.919085][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4587.919085][   T73] 
[ 4587.920808][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4587.921079][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4587.921079][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4587.921079][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4587.921079][   T73]      fib6_nh_init+0xa22/0x1580
[ 4587.921079][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4587.921079][   T73]      ip6_route_add+0x1c/0x140
[ 4587.921079][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4587.921079][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4587.921079][   T73]      netlink_rcv_skb+0x130/0x360
[ 4587.921079][   T73]      netlink_unicast+0x449/0x710
[ 4587.921079][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4587.921079][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4587.921079][   T73]      ___sys_sendmsg+0xee/0x170
[ 4587.921079][   T73]      __sys_sendmsg+0xcd/0x170
[ 4587.921079][   T73]      do_syscall_64+0xc6/0x1e0
[ 4587.921079][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4587.921079][   T73] 
[ 4587.923197][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4587.923197][   T73]      dst_init+0x84/0x4a0
[ 4587.923197][   T73]      dst_alloc+0x97/0x150
[ 4587.923197][   T73]      ip6_dst_alloc+0x23/0x90
[ 4587.923197][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4587.923197][   T73]      ip6_pol_route+0x56f/0x840
[ 4587.923197][   T73]      fib6_rule_lookup+0x456/0x630
[ 4587.923197][   T73]      ip6_route_input+0x59c/0xa50
[ 4587.923197][   T73]      ipv6_rcv+0x397/0x810
[ 4587.923197][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4587.923197][   T73]      process_backlog+0x101/0x620
[ 4587.923197][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4587.923197][   T73]      net_rx_action+0x495/0xbe0
[ 4587.923197][   T73]      __do_softirq+0x1b5/0x7f6
[ 4587.923197][   T73] 
[ 4587.925045][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4587.925045][   T73]      netdev_get_by_index+0x5e/0x80
[ 4587.925045][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4587.925045][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4587.925045][   T73]      ip6_route_add+0x1c/0x140
[ 4587.925045][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4587.925045][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4587.925045][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4587.925045][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4587.925045][   T73]      netlink_rcv_skb+0x130/0x360
[ 4587.925045][   T73]      netlink_unicast+0x449/0x710
[ 4587.925045][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4587.925045][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4587.925045][   T73]      ___sys_sendmsg+0xee/0x170
[ 4587.925045][   T73]      __sys_sendmsg+0xcd/0x170
[ 4587.925045][   T73]      do_syscall_64+0xc6/0x1e0
[ 4587.925045][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4587.925045][   T73] 
[ 4587.927318][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4587.927318][   T73]      netdev_get_by_index+0x5e/0x80
[ 4587.927318][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4587.927318][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4587.927318][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4587.927318][   T73]      ipv6_add_addr+0x411/0x2000
[ 4587.927318][   T73]      inet6_addr_add+0x30e/0xa40
[ 4587.927318][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4587.927318][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4587.927318][   T73]      netlink_rcv_skb+0x130/0x360
[ 4587.927318][   T73]      netlink_unicast+0x449/0x710
[ 4587.927318][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4587.927318][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4587.927318][   T73]      ___sys_sendmsg+0xee/0x170
[ 4587.927318][   T73]      __sys_sendmsg+0xcd/0x170
[ 4587.927318][   T73]      do_syscall_64+0xc6/0x1e0
[ 4587.927318][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4587.927318][   T73] 
[ 4587.929543][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4587.929543][   T73]      netdev_get_by_index+0x5e/0x80
[ 4587.929543][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4587.929543][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4587.929543][   T73]      ip6_route_add+0x1c/0x140
[ 4587.929543][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4587.929543][   T73]      addrconf_add_dev+0xe2/0x170
[ 4587.929543][   T73]      inet6_addr_add+0x12f/0xa40
[ 4587.929543][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4587.929543][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4587.929543][   T73]      netlink_rcv_skb+0x130/0x360
[ 4587.929543][   T73]      netlink_unicast+0x449/0x710
[ 4587.929543][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4587.929543][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4587.929543][   T73]      ___sys_sendmsg+0xee/0x170
[ 4587.929543][   T73]      __sys_sendmsg+0xcd/0x170
[ 4587.929543][   T73]      do_syscall_64+0xc6/0x1e0
[ 4587.929543][   T73] 
[ 4587.931857][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4587.931857][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4587.931857][   T73]      ipv6_find_idev+0x102/0x170
[ 4587.931857][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4587.931857][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4587.931857][   T73]      netlink_rcv_skb+0x130/0x360
[ 4587.931857][   T73]      netlink_unicast+0x449/0x710
[ 4587.931857][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4587.931857][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4587.931857][   T73]      ___sys_sendmsg+0xee/0x170
[ 4587.931857][   T73]      __sys_sendmsg+0xcd/0x170
[ 4587.931857][   T73]      do_syscall_64+0xc6/0x1e0
[ 4587.931857][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4587.931857][   T73] 
[ 4587.933603][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4587.933603][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4587.933603][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4587.933603][   T73]      ipv6_find_idev+0x102/0x170
[ 4587.933603][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4587.933603][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4587.933603][   T73]      netlink_rcv_skb+0x130/0x360
[ 4587.933603][   T73]      netlink_unicast+0x449/0x710
[ 4587.933603][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4587.933603][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4587.933603][   T73]      ___sys_sendmsg+0xee/0x170
[ 4587.933603][   T73]      __sys_sendmsg+0xcd/0x170
[ 4587.933603][   T73]      do_syscall_64+0xc6/0x1e0
[ 4587.933603][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4587.933603][   T73] 
[ 4587.935499][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4587.936301][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4587.936301][   T73]      netdev_get_by_index+0x5e/0x80
[ 4587.936301][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4587.936301][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4587.936301][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4587.936301][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4587.936301][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4587.936301][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4587.936301][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4587.936301][   T73]      addrconf_dad_begin+0x310/0x670
[ 4587.936301][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4587.936301][   T73]      process_one_work+0x84d/0x18a0
[ 4587.936301][   T73]      worker_thread+0x587/0xd30
[ 4587.936301][   T73]      kthread+0x28a/0x350
[ 4587.936301][   T73]      ret_from_fork+0x31/0x70
[ 4587.936301][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4587.936301][   T73] 
[ 4587.938241][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4587.938241][   T73]      netdev_get_by_index+0x5e/0x80
[ 4587.938241][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4587.938241][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4587.938241][   T73]      ip6_route_add+0x1c/0x140
[ 4587.938241][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4587.938241][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4587.938241][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4587.938241][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4587.938241][   T73]      netlink_rcv_skb+0x130/0x360
[ 4587.938241][   T73]      netlink_unicast+0x449/0x710
[ 4587.938241][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4587.938241][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4587.938241][   T73]      ___sys_sendmsg+0xee/0x170
[ 4587.938241][   T73]      __sys_sendmsg+0xcd/0x170
[ 4587.938241][   T73]      do_syscall_64+0xc6/0x1e0
[ 4587.938241][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4587.938241][   T73] 
[ 4587.940259][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4587.940259][   T73]      netdev_get_by_index+0x5e/0x80
[ 4587.940259][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4587.940259][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4587.940259][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4587.940259][   T73]      ipv6_add_addr+0x411/0x2000
[ 4587.940259][   T73]      inet6_addr_add+0x30e/0xa40
[ 4587.940259][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4587.940259][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4587.940259][   T73]      netlink_rcv_skb+0x130/0x360
[ 4587.940259][   T73]      netlink_unicast+0x449/0x710
[ 4587.940259][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4587.940259][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4587.940259][   T73]      ___sys_sendmsg+0xee/0x170
[ 4587.940259][   T73]      __sys_sendmsg+0xcd/0x170
[ 4587.940259][   T73]      do_syscall_64+0xc6/0x1e0
[ 4587.940259][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4587.940259][   T73] 
[ 4587.942531][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4587.942531][   T73]      netdev_get_by_index+0x5e/0x80
[ 4587.942531][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4587.942531][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4587.942531][   T73]      ip6_route_add+0x1c/0x140
[ 4587.942531][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4587.942531][   T73]      addrconf_add_dev+0xe2/0x170
[ 4587.942531][   T73]      inet6_addr_add+0x12f/0xa40
[ 4587.942531][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4587.942531][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4587.942531][   T73]      netlink_rcv_skb+0x130/0x360
[ 4587.942531][   T73]      netlink_unicast+0x449/0x710
[ 4587.942531][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4587.942531][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4587.942531][   T73]      ___sys_sendmsg+0xee/0x170
[ 4587.942531][   T73]      __sys_sendmsg+0xcd/0x170
[ 4587.942531][   T73]      do_syscall_64+0xc6/0x1e0
[ 4587.942531][   T73] 
[ 4587.944855][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4587.944855][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4587.944855][   T73]      ipv6_find_idev+0x102/0x170
[ 4587.944855][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4587.944855][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4587.944855][   T73]      netlink_rcv_skb+0x130/0x360
[ 4587.944855][   T73]      netlink_unicast+0x449/0x710
[ 4587.944855][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4587.944855][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4587.944855][   T73]      ___sys_sendmsg+0xee/0x170
[ 4587.944855][   T73]      __sys_sendmsg+0xcd/0x170
[ 4587.944855][   T73]      do_syscall_64+0xc6/0x1e0
[ 4587.944855][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4587.944855][   T73] 
[ 4587.946604][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4587.946604][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4587.946604][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4587.946604][   T73]      ipv6_find_idev+0x102/0x170
[ 4587.946604][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4587.946604][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4587.946604][   T73]      netlink_rcv_skb+0x130/0x360
[ 4587.946604][   T73]      netlink_unicast+0x449/0x710
[ 4587.946604][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4587.946604][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4587.946604][   T73]      ___sys_sendmsg+0xee/0x170
[ 4587.946604][   T73]      __sys_sendmsg+0xcd/0x170
[ 4587.946604][   T73]      do_syscall_64+0xc6/0x1e0
[ 4587.946604][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4587.946604][   T73] 
[ 4598.183697][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4598.184193][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4598.184193][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4598.184193][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4598.184193][   T73]      fib6_nh_init+0xa22/0x1580
[ 4598.184193][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4598.184193][   T73]      ip6_route_add+0x1c/0x140
[ 4598.184193][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4598.184193][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4598.184193][   T73]      netlink_rcv_skb+0x130/0x360
[ 4598.184193][   T73]      netlink_unicast+0x449/0x710
[ 4598.184193][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4598.184193][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4598.184193][   T73]      ___sys_sendmsg+0xee/0x170
[ 4598.184193][   T73]      __sys_sendmsg+0xcd/0x170
[ 4598.184193][   T73]      do_syscall_64+0xc6/0x1e0
[ 4598.184193][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4598.184193][   T73] 
[ 4598.186363][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4598.186363][   T73]      dst_init+0x84/0x4a0
[ 4598.186363][   T73]      dst_alloc+0x97/0x150
[ 4598.186363][   T73]      ip6_dst_alloc+0x23/0x90
[ 4598.186363][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4598.186363][   T73]      ip6_pol_route+0x56f/0x840
[ 4598.186363][   T73]      fib6_rule_lookup+0x456/0x630
[ 4598.186363][   T73]      ip6_route_input+0x59c/0xa50
[ 4598.186363][   T73]      ipv6_rcv+0x397/0x810
[ 4598.186363][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4598.186363][   T73]      process_backlog+0x101/0x620
[ 4598.186363][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4598.186363][   T73]      net_rx_action+0x495/0xbe0
[ 4598.186363][   T73]      __do_softirq+0x1b5/0x7f6
[ 4598.186363][   T73] 
[ 4598.188224][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4598.188224][   T73]      netdev_get_by_index+0x5e/0x80
[ 4598.188224][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4598.188224][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4598.188224][   T73]      ip6_route_add+0x1c/0x140
[ 4598.188224][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4598.188224][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4598.188224][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4598.188224][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4598.188224][   T73]      netlink_rcv_skb+0x130/0x360
[ 4598.188224][   T73]      netlink_unicast+0x449/0x710
[ 4598.188224][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4598.188224][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4598.188224][   T73]      ___sys_sendmsg+0xee/0x170
[ 4598.188224][   T73]      __sys_sendmsg+0xcd/0x170
[ 4598.188224][   T73]      do_syscall_64+0xc6/0x1e0
[ 4598.188224][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4598.188224][   T73] 
[ 4598.190515][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4598.190515][   T73]      netdev_get_by_index+0x5e/0x80
[ 4598.190515][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4598.190515][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4598.190515][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4598.190515][   T73]      ipv6_add_addr+0x411/0x2000
[ 4598.190515][   T73]      inet6_addr_add+0x30e/0xa40
[ 4598.190515][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4598.190515][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4598.190515][   T73]      netlink_rcv_skb+0x130/0x360
[ 4598.190515][   T73]      netlink_unicast+0x449/0x710
[ 4598.190515][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4598.190515][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4598.190515][   T73]      ___sys_sendmsg+0xee/0x170
[ 4598.190515][   T73]      __sys_sendmsg+0xcd/0x170
[ 4598.190515][   T73]      do_syscall_64+0xc6/0x1e0
[ 4598.190515][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4598.190515][   T73] 
[ 4598.192776][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4598.192776][   T73]      netdev_get_by_index+0x5e/0x80
[ 4598.192776][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4598.192776][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4598.192776][   T73]      ip6_route_add+0x1c/0x140
[ 4598.192776][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4598.192776][   T73]      addrconf_add_dev+0xe2/0x170
[ 4598.192776][   T73]      inet6_addr_add+0x12f/0xa40
[ 4598.192776][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4598.192776][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4598.192776][   T73]      netlink_rcv_skb+0x130/0x360
[ 4598.192776][   T73]      netlink_unicast+0x449/0x710
[ 4598.192776][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4598.192776][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4598.192776][   T73]      ___sys_sendmsg+0xee/0x170
[ 4598.192776][   T73]      __sys_sendmsg+0xcd/0x170
[ 4598.192776][   T73]      do_syscall_64+0xc6/0x1e0
[ 4598.192776][   T73] 
[ 4598.194989][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4598.194989][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4598.194989][   T73]      ipv6_find_idev+0x102/0x170
[ 4598.194989][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4598.194989][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4598.194989][   T73]      netlink_rcv_skb+0x130/0x360
[ 4598.194989][   T73]      netlink_unicast+0x449/0x710
[ 4598.194989][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4598.194989][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4598.194989][   T73]      ___sys_sendmsg+0xee/0x170
[ 4598.194989][   T73]      __sys_sendmsg+0xcd/0x170
[ 4598.194989][   T73]      do_syscall_64+0xc6/0x1e0
[ 4598.194989][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4598.194989][   T73] 
[ 4598.196718][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4598.196718][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4598.196718][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4598.196718][   T73]      ipv6_find_idev+0x102/0x170
[ 4598.196718][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4598.196718][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4598.196718][   T73]      netlink_rcv_skb+0x130/0x360
[ 4598.196718][   T73]      netlink_unicast+0x449/0x710
[ 4598.196718][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4598.196718][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4598.196718][   T73]      ___sys_sendmsg+0xee/0x170
[ 4598.196718][   T73]      __sys_sendmsg+0xcd/0x170
[ 4598.196718][   T73]      do_syscall_64+0xc6/0x1e0
[ 4598.196718][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4598.196718][   T73] 
[ 4598.198636][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4598.198963][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4598.198963][   T73]      netdev_get_by_index+0x5e/0x80
[ 4598.198963][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4598.198963][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4598.198963][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4598.198963][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4598.198963][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4598.198963][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4598.198963][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4598.198963][   T73]      addrconf_dad_begin+0x310/0x670
[ 4598.198963][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4598.198963][   T73]      process_one_work+0x84d/0x18a0
[ 4598.198963][   T73]      worker_thread+0x587/0xd30
[ 4598.198963][   T73]      kthread+0x28a/0x350
[ 4598.198963][   T73]      ret_from_fork+0x31/0x70
[ 4598.198963][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4598.198963][   T73] 
[ 4598.201119][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4598.201119][   T73]      netdev_get_by_index+0x5e/0x80
[ 4598.201119][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4598.201119][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4598.201119][   T73]      ip6_route_add+0x1c/0x140
[ 4598.201119][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4598.201119][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4598.201119][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4598.201119][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4598.201119][   T73]      netlink_rcv_skb+0x130/0x360
[ 4598.201119][   T73]      netlink_unicast+0x449/0x710
[ 4598.201119][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4598.201119][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4598.201119][   T73]      ___sys_sendmsg+0xee/0x170
[ 4598.201119][   T73]      __sys_sendmsg+0xcd/0x170
[ 4598.201119][   T73]      do_syscall_64+0xc6/0x1e0
[ 4598.201119][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4598.201119][   T73] 
[ 4598.203378][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4598.203378][   T73]      netdev_get_by_index+0x5e/0x80
[ 4598.203378][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4598.203378][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4598.203378][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4598.203378][   T73]      ipv6_add_addr+0x411/0x2000
[ 4598.203378][   T73]      inet6_addr_add+0x30e/0xa40
[ 4598.203378][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4598.203378][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4598.203378][   T73]      netlink_rcv_skb+0x130/0x360
[ 4598.203378][   T73]      netlink_unicast+0x449/0x710
[ 4598.203378][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4598.203378][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4598.203378][   T73]      ___sys_sendmsg+0xee/0x170
[ 4598.203378][   T73]      __sys_sendmsg+0xcd/0x170
[ 4598.203378][   T73]      do_syscall_64+0xc6/0x1e0
[ 4598.203378][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4598.203378][   T73] 
[ 4598.205620][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4598.205620][   T73]      netdev_get_by_index+0x5e/0x80
[ 4598.205620][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4598.205620][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4598.205620][   T73]      ip6_route_add+0x1c/0x140
[ 4598.205620][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4598.205620][   T73]      addrconf_add_dev+0xe2/0x170
[ 4598.205620][   T73]      inet6_addr_add+0x12f/0xa40
[ 4598.205620][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4598.205620][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4598.205620][   T73]      netlink_rcv_skb+0x130/0x360
[ 4598.205620][   T73]      netlink_unicast+0x449/0x710
[ 4598.205620][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4598.205620][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4598.205620][   T73]      ___sys_sendmsg+0xee/0x170
[ 4598.205620][   T73]      __sys_sendmsg+0xcd/0x170
[ 4598.205620][   T73]      do_syscall_64+0xc6/0x1e0
[ 4598.205620][   T73] 
[ 4598.207840][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4598.207840][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4598.207840][   T73]      ipv6_find_idev+0x102/0x170
[ 4598.207840][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4598.207840][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4598.207840][   T73]      netlink_rcv_skb+0x130/0x360
[ 4598.207840][   T73]      netlink_unicast+0x449/0x710
[ 4598.207840][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4598.207840][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4598.207840][   T73]      ___sys_sendmsg+0xee/0x170
[ 4598.207840][   T73]      __sys_sendmsg+0xcd/0x170
[ 4598.207840][   T73]      do_syscall_64+0xc6/0x1e0
[ 4598.207840][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4598.207840][   T73] 
[ 4598.209578][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4598.209578][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4598.209578][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4598.209578][   T73]      ipv6_find_idev+0x102/0x170
[ 4598.209578][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4598.209578][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4598.209578][   T73]      netlink_rcv_skb+0x130/0x360
[ 4598.209578][   T73]      netlink_unicast+0x449/0x710
[ 4598.209578][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4598.209578][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4598.209578][   T73]      ___sys_sendmsg+0xee/0x170
[ 4598.209578][   T73]      __sys_sendmsg+0xcd/0x170
[ 4598.209578][   T73]      do_syscall_64+0xc6/0x1e0
[ 4598.209578][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4598.209578][   T73] 
[ 4598.211475][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4598.211793][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4598.211793][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4598.211793][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4598.211793][   T73]      fib6_nh_init+0xa22/0x1580
[ 4598.211793][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4598.211793][   T73]      ip6_route_add+0x1c/0x140
[ 4598.211793][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4598.211793][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4598.211793][   T73]      netlink_rcv_skb+0x130/0x360
[ 4598.211793][   T73]      netlink_unicast+0x449/0x710
[ 4598.211793][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4598.211793][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4598.211793][   T73]      ___sys_sendmsg+0xee/0x170
[ 4598.211793][   T73]      __sys_sendmsg+0xcd/0x170
[ 4598.211793][   T73]      do_syscall_64+0xc6/0x1e0
[ 4598.211793][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4598.211793][   T73] 
[ 4598.214108][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4598.214108][   T73]      dst_init+0x84/0x4a0
[ 4598.214108][   T73]      dst_alloc+0x97/0x150
[ 4598.214108][   T73]      ip6_dst_alloc+0x23/0x90
[ 4598.214108][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4598.214108][   T73]      ip6_pol_route+0x56f/0x840
[ 4598.214108][   T73]      fib6_rule_lookup+0x456/0x630
[ 4598.214108][   T73]      ip6_route_input+0x59c/0xa50
[ 4598.214108][   T73]      ipv6_rcv+0x397/0x810
[ 4598.214108][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4598.214108][   T73]      process_backlog+0x101/0x620
[ 4598.214108][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4598.214108][   T73]      net_rx_action+0x495/0xbe0
[ 4598.214108][   T73]      __do_softirq+0x1b5/0x7f6
[ 4598.214108][   T73] 
[ 4598.216136][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4598.216136][   T73]      netdev_get_by_index+0x5e/0x80
[ 4598.216136][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4598.216136][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4598.216136][   T73]      ip6_route_add+0x1c/0x140
[ 4598.216136][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4598.216136][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4598.216136][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4598.216136][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4598.216136][   T73]      netlink_rcv_skb+0x130/0x360
[ 4598.216136][   T73]      netlink_unicast+0x449/0x710
[ 4598.216136][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4598.216136][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4598.216136][   T73]      ___sys_sendmsg+0xee/0x170
[ 4598.216136][   T73]      __sys_sendmsg+0xcd/0x170
[ 4598.216136][   T73]      do_syscall_64+0xc6/0x1e0
[ 4598.216136][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4598.216136][   T73] 
[ 4598.218637][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4598.218637][   T73]      netdev_get_by_index+0x5e/0x80
[ 4598.218637][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4598.218637][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4598.218637][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4598.218637][   T73]      ipv6_add_addr+0x411/0x2000
[ 4598.218637][   T73]      inet6_addr_add+0x30e/0xa40
[ 4598.218637][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4598.218637][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4598.218637][   T73]      netlink_rcv_skb+0x130/0x360
[ 4598.218637][   T73]      netlink_unicast+0x449/0x710
[ 4598.218637][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4598.218637][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4598.218637][   T73]      ___sys_sendmsg+0xee/0x170
[ 4598.218637][   T73]      __sys_sendmsg+0xcd/0x170
[ 4598.218637][   T73]      do_syscall_64+0xc6/0x1e0
[ 4598.218637][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4598.218637][   T73] 
[ 4598.221187][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4598.221187][   T73]      netdev_get_by_index+0x5e/0x80
[ 4598.221187][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4598.221187][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4598.221187][   T73]      ip6_route_add+0x1c/0x140
[ 4598.221187][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4598.221187][   T73]      addrconf_add_dev+0xe2/0x170
[ 4598.221187][   T73]      inet6_addr_add+0x12f/0xa40
[ 4598.221187][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4598.221187][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4598.221187][   T73]      netlink_rcv_skb+0x130/0x360
[ 4598.221187][   T73]      netlink_unicast+0x449/0x710
[ 4598.221187][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4598.221187][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4598.221187][   T73]      ___sys_sendmsg+0xee/0x170
[ 4598.221187][   T73]      __sys_sendmsg+0xcd/0x170
[ 4598.221187][   T73]      do_syscall_64+0xc6/0x1e0
[ 4598.221187][   T73] 
[ 4598.223658][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4598.223658][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4598.223658][   T73]      ipv6_find_idev+0x102/0x170
[ 4598.223658][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4598.223658][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4598.223658][   T73]      netlink_rcv_skb+0x130/0x360
[ 4598.223658][   T73]      netlink_unicast+0x449/0x710
[ 4598.223658][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4598.223658][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4598.223658][   T73]      ___sys_sendmsg+0xee/0x170
[ 4598.223658][   T73]      __sys_sendmsg+0xcd/0x170
[ 4598.223658][   T73]      do_syscall_64+0xc6/0x1e0
[ 4598.223658][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4598.223658][   T73] 
[ 4598.225584][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4598.225584][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4598.225584][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4598.225584][   T73]      ipv6_find_idev+0x102/0x170
[ 4598.225584][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4598.225584][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4598.225584][   T73]      netlink_rcv_skb+0x130/0x360
[ 4598.225584][   T73]      netlink_unicast+0x449/0x710
[ 4598.225584][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4598.225584][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4598.225584][   T73]      ___sys_sendmsg+0xee/0x170
[ 4598.225584][   T73]      __sys_sendmsg+0xcd/0x170
[ 4598.225584][   T73]      do_syscall_64+0xc6/0x1e0
[ 4598.225584][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4598.225584][   T73] 
[ 4598.227674][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4598.227974][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4598.227974][   T73]      netdev_get_by_index+0x5e/0x80
[ 4598.227974][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4598.227974][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4598.227974][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4598.227974][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4598.227974][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4598.227974][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4598.227974][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4598.227974][   T73]      addrconf_dad_begin+0x310/0x670
[ 4598.227974][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4598.227974][   T73]      process_one_work+0x84d/0x18a0
[ 4598.227974][   T73]      worker_thread+0x587/0xd30
[ 4598.227974][   T73]      kthread+0x28a/0x350
[ 4598.227974][   T73]      ret_from_fork+0x31/0x70
[ 4598.227974][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4598.227974][   T73] 
[ 4598.230432][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4598.230432][   T73]      netdev_get_by_index+0x5e/0x80
[ 4598.230432][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4598.230432][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4598.230432][   T73]      ip6_route_add+0x1c/0x140
[ 4598.230432][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4598.230432][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4598.230432][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4598.230432][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4598.230432][   T73]      netlink_rcv_skb+0x130/0x360
[ 4598.230432][   T73]      netlink_unicast+0x449/0x710
[ 4598.230432][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4598.230432][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4598.230432][   T73]      ___sys_sendmsg+0xee/0x170
[ 4598.230432][   T73]      __sys_sendmsg+0xcd/0x170
[ 4598.230432][   T73]      do_syscall_64+0xc6/0x1e0
[ 4598.230432][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4598.230432][   T73] 
[ 4598.232911][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4598.232911][   T73]      netdev_get_by_index+0x5e/0x80
[ 4598.232911][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4598.232911][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4598.232911][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4598.232911][   T73]      ipv6_add_addr+0x411/0x2000
[ 4598.232911][   T73]      inet6_addr_add+0x30e/0xa40
[ 4598.232911][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4598.232911][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4598.232911][   T73]      netlink_rcv_skb+0x130/0x360
[ 4598.232911][   T73]      netlink_unicast+0x449/0x710
[ 4598.232911][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4598.232911][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4598.232911][   T73]      ___sys_sendmsg+0xee/0x170
[ 4598.232911][   T73]      __sys_sendmsg+0xcd/0x170
[ 4598.232911][   T73]      do_syscall_64+0xc6/0x1e0
[ 4598.232911][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4598.232911][   T73] 
[ 4598.235388][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4598.235388][   T73]      netdev_get_by_index+0x5e/0x80
[ 4598.235388][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4598.235388][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4598.235388][   T73]      ip6_route_add+0x1c/0x140
[ 4598.235388][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4598.235388][   T73]      addrconf_add_dev+0xe2/0x170
[ 4598.235388][   T73]      inet6_addr_add+0x12f/0xa40
[ 4598.235388][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4598.235388][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4598.235388][   T73]      netlink_rcv_skb+0x130/0x360
[ 4598.235388][   T73]      netlink_unicast+0x449/0x710
[ 4598.235388][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4598.235388][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4598.235388][   T73]      ___sys_sendmsg+0xee/0x170
[ 4598.235388][   T73]      __sys_sendmsg+0xcd/0x170
[ 4598.235388][   T73]      do_syscall_64+0xc6/0x1e0
[ 4598.235388][   T73] 
[ 4598.237772][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4598.237772][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4598.237772][   T73]      ipv6_find_idev+0x102/0x170
[ 4598.237772][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4598.237772][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4598.237772][   T73]      netlink_rcv_skb+0x130/0x360
[ 4598.237772][   T73]      netlink_unicast+0x449/0x710
[ 4598.237772][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4598.237772][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4598.237772][   T73]      ___sys_sendmsg+0xee/0x170
[ 4598.237772][   T73]      __sys_sendmsg+0xcd/0x170
[ 4598.237772][   T73]      do_syscall_64+0xc6/0x1e0
[ 4598.237772][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4598.237772][   T73] 
[ 4598.239678][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4598.239678][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4598.239678][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4598.239678][   T73]      ipv6_find_idev+0x102/0x170
[ 4598.239678][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4598.239678][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4598.239678][   T73]      netlink_rcv_skb+0x130/0x360
[ 4598.239678][   T73]      netlink_unicast+0x449/0x710
[ 4598.239678][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4598.239678][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4598.239678][   T73]      ___sys_sendmsg+0xee/0x170
[ 4598.239678][   T73]      __sys_sendmsg+0xcd/0x170
[ 4598.239678][   T73]      do_syscall_64+0xc6/0x1e0
[ 4598.239678][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4598.239678][   T73] 
[ 4608.351812][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4608.352249][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4608.352249][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4608.352249][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4608.352249][   T73]      fib6_nh_init+0xa22/0x1580
[ 4608.352249][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4608.352249][   T73]      ip6_route_add+0x1c/0x140
[ 4608.352249][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4608.352249][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4608.352249][   T73]      netlink_rcv_skb+0x130/0x360
[ 4608.352249][   T73]      netlink_unicast+0x449/0x710
[ 4608.352249][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4608.352249][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4608.352249][   T73]      ___sys_sendmsg+0xee/0x170
[ 4608.352249][   T73]      __sys_sendmsg+0xcd/0x170
[ 4608.352249][   T73]      do_syscall_64+0xc6/0x1e0
[ 4608.352249][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4608.352249][   T73] 
[ 4608.354243][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4608.354243][   T73]      dst_init+0x84/0x4a0
[ 4608.354243][   T73]      dst_alloc+0x97/0x150
[ 4608.354243][   T73]      ip6_dst_alloc+0x23/0x90
[ 4608.354243][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4608.354243][   T73]      ip6_pol_route+0x56f/0x840
[ 4608.354243][   T73]      fib6_rule_lookup+0x456/0x630
[ 4608.354243][   T73]      ip6_route_input+0x59c/0xa50
[ 4608.354243][   T73]      ipv6_rcv+0x397/0x810
[ 4608.354243][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4608.354243][   T73]      process_backlog+0x101/0x620
[ 4608.354243][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4608.354243][   T73]      net_rx_action+0x495/0xbe0
[ 4608.354243][   T73]      __do_softirq+0x1b5/0x7f6
[ 4608.354243][   T73] 
[ 4608.355921][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4608.355921][   T73]      netdev_get_by_index+0x5e/0x80
[ 4608.355921][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4608.355921][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4608.355921][   T73]      ip6_route_add+0x1c/0x140
[ 4608.355921][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4608.355921][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4608.355921][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4608.355921][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4608.355921][   T73]      netlink_rcv_skb+0x130/0x360
[ 4608.355921][   T73]      netlink_unicast+0x449/0x710
[ 4608.355921][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4608.355921][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4608.355921][   T73]      ___sys_sendmsg+0xee/0x170
[ 4608.355921][   T73]      __sys_sendmsg+0xcd/0x170
[ 4608.355921][   T73]      do_syscall_64+0xc6/0x1e0
[ 4608.355921][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4608.355921][   T73] 
[ 4608.357981][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4608.357981][   T73]      netdev_get_by_index+0x5e/0x80
[ 4608.357981][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4608.357981][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4608.357981][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4608.357981][   T73]      ipv6_add_addr+0x411/0x2000
[ 4608.357981][   T73]      inet6_addr_add+0x30e/0xa40
[ 4608.357981][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4608.357981][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4608.357981][   T73]      netlink_rcv_skb+0x130/0x360
[ 4608.357981][   T73]      netlink_unicast+0x449/0x710
[ 4608.357981][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4608.357981][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4608.357981][   T73]      ___sys_sendmsg+0xee/0x170
[ 4608.357981][   T73]      __sys_sendmsg+0xcd/0x170
[ 4608.357981][   T73]      do_syscall_64+0xc6/0x1e0
[ 4608.357981][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4608.357981][   T73] 
[ 4608.360027][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4608.360027][   T73]      netdev_get_by_index+0x5e/0x80
[ 4608.360027][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4608.360027][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4608.360027][   T73]      ip6_route_add+0x1c/0x140
[ 4608.360027][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4608.360027][   T73]      addrconf_add_dev+0xe2/0x170
[ 4608.360027][   T73]      inet6_addr_add+0x12f/0xa40
[ 4608.360027][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4608.360027][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4608.360027][   T73]      netlink_rcv_skb+0x130/0x360
[ 4608.360027][   T73]      netlink_unicast+0x449/0x710
[ 4608.360027][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4608.360027][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4608.360027][   T73]      ___sys_sendmsg+0xee/0x170
[ 4608.360027][   T73]      __sys_sendmsg+0xcd/0x170
[ 4608.360027][   T73]      do_syscall_64+0xc6/0x1e0
[ 4608.360027][   T73] 
[ 4608.362068][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4608.362068][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4608.362068][   T73]      ipv6_find_idev+0x102/0x170
[ 4608.362068][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4608.362068][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4608.362068][   T73]      netlink_rcv_skb+0x130/0x360
[ 4608.362068][   T73]      netlink_unicast+0x449/0x710
[ 4608.362068][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4608.362068][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4608.362068][   T73]      ___sys_sendmsg+0xee/0x170
[ 4608.362068][   T73]      __sys_sendmsg+0xcd/0x170
[ 4608.362068][   T73]      do_syscall_64+0xc6/0x1e0
[ 4608.362068][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4608.362068][   T73] 
[ 4608.363654][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4608.363654][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4608.363654][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4608.363654][   T73]      ipv6_find_idev+0x102/0x170
[ 4608.363654][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4608.363654][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4608.363654][   T73]      netlink_rcv_skb+0x130/0x360
[ 4608.363654][   T73]      netlink_unicast+0x449/0x710
[ 4608.363654][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4608.363654][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4608.363654][   T73]      ___sys_sendmsg+0xee/0x170
[ 4608.363654][   T73]      __sys_sendmsg+0xcd/0x170
[ 4608.363654][   T73]      do_syscall_64+0xc6/0x1e0
[ 4608.363654][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4608.363654][   T73] 
[ 4608.365915][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4608.366201][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4608.366201][   T73]      netdev_get_by_index+0x5e/0x80
[ 4608.366201][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4608.366201][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4608.366201][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4608.366201][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4608.366201][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4608.366201][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4608.366201][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4608.366201][   T73]      addrconf_dad_begin+0x310/0x670
[ 4608.366201][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4608.366201][   T73]      process_one_work+0x84d/0x18a0
[ 4608.366201][   T73]      worker_thread+0x587/0xd30
[ 4608.366201][   T73]      kthread+0x28a/0x350
[ 4608.366201][   T73]      ret_from_fork+0x31/0x70
[ 4608.366201][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4608.366201][   T73] 
[ 4608.368130][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4608.368130][   T73]      netdev_get_by_index+0x5e/0x80
[ 4608.368130][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4608.368130][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4608.368130][   T73]      ip6_route_add+0x1c/0x140
[ 4608.368130][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4608.368130][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4608.368130][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4608.368130][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4608.368130][   T73]      netlink_rcv_skb+0x130/0x360
[ 4608.368130][   T73]      netlink_unicast+0x449/0x710
[ 4608.368130][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4608.368130][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4608.368130][   T73]      ___sys_sendmsg+0xee/0x170
[ 4608.368130][   T73]      __sys_sendmsg+0xcd/0x170
[ 4608.368130][   T73]      do_syscall_64+0xc6/0x1e0
[ 4608.368130][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4608.368130][   T73] 
[ 4608.370145][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4608.370145][   T73]      netdev_get_by_index+0x5e/0x80
[ 4608.370145][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4608.370145][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4608.370145][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4608.370145][   T73]      ipv6_add_addr+0x411/0x2000
[ 4608.370145][   T73]      inet6_addr_add+0x30e/0xa40
[ 4608.370145][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4608.370145][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4608.370145][   T73]      netlink_rcv_skb+0x130/0x360
[ 4608.370145][   T73]      netlink_unicast+0x449/0x710
[ 4608.370145][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4608.370145][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4608.370145][   T73]      ___sys_sendmsg+0xee/0x170
[ 4608.370145][   T73]      __sys_sendmsg+0xcd/0x170
[ 4608.370145][   T73]      do_syscall_64+0xc6/0x1e0
[ 4608.370145][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4608.370145][   T73] 
[ 4608.372159][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4608.372159][   T73]      netdev_get_by_index+0x5e/0x80
[ 4608.372159][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4608.372159][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4608.372159][   T73]      ip6_route_add+0x1c/0x140
[ 4608.372159][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4608.372159][   T73]      addrconf_add_dev+0xe2/0x170
[ 4608.372159][   T73]      inet6_addr_add+0x12f/0xa40
[ 4608.372159][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4608.372159][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4608.372159][   T73]      netlink_rcv_skb+0x130/0x360
[ 4608.372159][   T73]      netlink_unicast+0x449/0x710
[ 4608.372159][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4608.372159][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4608.372159][   T73]      ___sys_sendmsg+0xee/0x170
[ 4608.372159][   T73]      __sys_sendmsg+0xcd/0x170
[ 4608.372159][   T73]      do_syscall_64+0xc6/0x1e0
[ 4608.372159][   T73] 
[ 4608.374141][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4608.374141][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4608.374141][   T73]      ipv6_find_idev+0x102/0x170
[ 4608.374141][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4608.374141][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4608.374141][   T73]      netlink_rcv_skb+0x130/0x360
[ 4608.374141][   T73]      netlink_unicast+0x449/0x710
[ 4608.374141][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4608.374141][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4608.374141][   T73]      ___sys_sendmsg+0xee/0x170
[ 4608.374141][   T73]      __sys_sendmsg+0xcd/0x170
[ 4608.374141][   T73]      do_syscall_64+0xc6/0x1e0
[ 4608.374141][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4608.374141][   T73] 
[ 4608.375689][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4608.375689][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4608.375689][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4608.375689][   T73]      ipv6_find_idev+0x102/0x170
[ 4608.375689][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4608.375689][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4608.375689][   T73]      netlink_rcv_skb+0x130/0x360
[ 4608.375689][   T73]      netlink_unicast+0x449/0x710
[ 4608.375689][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4608.375689][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4608.375689][   T73]      ___sys_sendmsg+0xee/0x170
[ 4608.375689][   T73]      __sys_sendmsg+0xcd/0x170
[ 4608.375689][   T73]      do_syscall_64+0xc6/0x1e0
[ 4608.375689][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4608.375689][   T73] 
[ 4608.377384][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4608.377659][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4608.377659][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4608.377659][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4608.377659][   T73]      fib6_nh_init+0xa22/0x1580
[ 4608.377659][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4608.377659][   T73]      ip6_route_add+0x1c/0x140
[ 4608.377659][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4608.377659][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4608.377659][   T73]      netlink_rcv_skb+0x130/0x360
[ 4608.377659][   T73]      netlink_unicast+0x449/0x710
[ 4608.377659][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4608.377659][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4608.377659][   T73]      ___sys_sendmsg+0xee/0x170
[ 4608.377659][   T73]      __sys_sendmsg+0xcd/0x170
[ 4608.377659][   T73]      do_syscall_64+0xc6/0x1e0
[ 4608.377659][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4608.377659][   T73] 
[ 4608.379733][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4608.379733][   T73]      dst_init+0x84/0x4a0
[ 4608.379733][   T73]      dst_alloc+0x97/0x150
[ 4608.379733][   T73]      ip6_dst_alloc+0x23/0x90
[ 4608.379733][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4608.379733][   T73]      ip6_pol_route+0x56f/0x840
[ 4608.379733][   T73]      fib6_rule_lookup+0x456/0x630
[ 4608.379733][   T73]      ip6_route_input+0x59c/0xa50
[ 4608.379733][   T73]      ipv6_rcv+0x397/0x810
[ 4608.379733][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4608.379733][   T73]      process_backlog+0x101/0x620
[ 4608.379733][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4608.379733][   T73]      net_rx_action+0x495/0xbe0
[ 4608.379733][   T73]      __do_softirq+0x1b5/0x7f6
[ 4608.379733][   T73] 
[ 4608.381622][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4608.381622][   T73]      netdev_get_by_index+0x5e/0x80
[ 4608.381622][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4608.381622][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4608.381622][   T73]      ip6_route_add+0x1c/0x140
[ 4608.381622][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4608.381622][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4608.381622][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4608.381622][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4608.381622][   T73]      netlink_rcv_skb+0x130/0x360
[ 4608.381622][   T73]      netlink_unicast+0x449/0x710
[ 4608.381622][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4608.381622][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4608.381622][   T73]      ___sys_sendmsg+0xee/0x170
[ 4608.381622][   T73]      __sys_sendmsg+0xcd/0x170
[ 4608.381622][   T73]      do_syscall_64+0xc6/0x1e0
[ 4608.381622][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4608.381622][   T73] 
[ 4608.386337][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4608.386337][   T73]      netdev_get_by_index+0x5e/0x80
[ 4608.386337][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4608.386337][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4608.386337][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4608.386337][   T73]      ipv6_add_addr+0x411/0x2000
[ 4608.386337][   T73]      inet6_addr_add+0x30e/0xa40
[ 4608.386337][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4608.386337][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4608.386337][   T73]      netlink_rcv_skb+0x130/0x360
[ 4608.386337][   T73]      netlink_unicast+0x449/0x710
[ 4608.386337][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4608.386337][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4608.386337][   T73]      ___sys_sendmsg+0xee/0x170
[ 4608.386337][   T73]      __sys_sendmsg+0xcd/0x170
[ 4608.386337][   T73]      do_syscall_64+0xc6/0x1e0
[ 4608.386337][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4608.386337][   T73] 
[ 4608.388564][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4608.388564][   T73]      netdev_get_by_index+0x5e/0x80
[ 4608.388564][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4608.388564][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4608.388564][   T73]      ip6_route_add+0x1c/0x140
[ 4608.388564][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4608.388564][   T73]      addrconf_add_dev+0xe2/0x170
[ 4608.388564][   T73]      inet6_addr_add+0x12f/0xa40
[ 4608.388564][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4608.388564][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4608.388564][   T73]      netlink_rcv_skb+0x130/0x360
[ 4608.388564][   T73]      netlink_unicast+0x449/0x710
[ 4608.388564][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4608.388564][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4608.388564][   T73]      ___sys_sendmsg+0xee/0x170
[ 4608.388564][   T73]      __sys_sendmsg+0xcd/0x170
[ 4608.388564][   T73]      do_syscall_64+0xc6/0x1e0
[ 4608.388564][   T73] 
[ 4608.390804][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4608.390804][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4608.390804][   T73]      ipv6_find_idev+0x102/0x170
[ 4608.390804][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4608.390804][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4608.390804][   T73]      netlink_rcv_skb+0x130/0x360
[ 4608.390804][   T73]      netlink_unicast+0x449/0x710
[ 4608.390804][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4608.390804][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4608.390804][   T73]      ___sys_sendmsg+0xee/0x170
[ 4608.390804][   T73]      __sys_sendmsg+0xcd/0x170
[ 4608.390804][   T73]      do_syscall_64+0xc6/0x1e0
[ 4608.390804][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4608.390804][   T73] 
[ 4608.392610][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4608.392610][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4608.392610][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4608.392610][   T73]      ipv6_find_idev+0x102/0x170
[ 4608.392610][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4608.392610][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4608.392610][   T73]      netlink_rcv_skb+0x130/0x360
[ 4608.392610][   T73]      netlink_unicast+0x449/0x710
[ 4608.392610][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4608.392610][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4608.392610][   T73]      ___sys_sendmsg+0xee/0x170
[ 4608.392610][   T73]      __sys_sendmsg+0xcd/0x170
[ 4608.392610][   T73]      do_syscall_64+0xc6/0x1e0
[ 4608.392610][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4608.392610][   T73] 
[ 4608.394526][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4608.395307][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4608.395307][   T73]      netdev_get_by_index+0x5e/0x80
[ 4608.395307][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4608.395307][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4608.395307][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4608.395307][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4608.395307][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4608.395307][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4608.395307][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4608.395307][   T73]      addrconf_dad_begin+0x310/0x670
[ 4608.395307][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4608.395307][   T73]      process_one_work+0x84d/0x18a0
[ 4608.395307][   T73]      worker_thread+0x587/0xd30
[ 4608.395307][   T73]      kthread+0x28a/0x350
[ 4608.395307][   T73]      ret_from_fork+0x31/0x70
[ 4608.395307][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4608.395307][   T73] 
[ 4608.397261][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4608.397261][   T73]      netdev_get_by_index+0x5e/0x80
[ 4608.397261][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4608.397261][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4608.397261][   T73]      ip6_route_add+0x1c/0x140
[ 4608.397261][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4608.397261][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4608.397261][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4608.397261][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4608.397261][   T73]      netlink_rcv_skb+0x130/0x360
[ 4608.397261][   T73]      netlink_unicast+0x449/0x710
[ 4608.397261][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4608.397261][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4608.397261][   T73]      ___sys_sendmsg+0xee/0x170
[ 4608.397261][   T73]      __sys_sendmsg+0xcd/0x170
[ 4608.397261][   T73]      do_syscall_64+0xc6/0x1e0
[ 4608.397261][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4608.397261][   T73] 
[ 4608.399377][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4608.399377][   T73]      netdev_get_by_index+0x5e/0x80
[ 4608.399377][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4608.399377][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4608.399377][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4608.399377][   T73]      ipv6_add_addr+0x411/0x2000
[ 4608.399377][   T73]      inet6_addr_add+0x30e/0xa40
[ 4608.399377][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4608.399377][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4608.399377][   T73]      netlink_rcv_skb+0x130/0x360
[ 4608.399377][   T73]      netlink_unicast+0x449/0x710
[ 4608.399377][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4608.399377][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4608.399377][   T73]      ___sys_sendmsg+0xee/0x170
[ 4608.399377][   T73]      __sys_sendmsg+0xcd/0x170
[ 4608.399377][   T73]      do_syscall_64+0xc6/0x1e0
[ 4608.399377][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4608.399377][   T73] 
[ 4608.401650][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4608.401650][   T73]      netdev_get_by_index+0x5e/0x80
[ 4608.401650][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4608.401650][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4608.401650][   T73]      ip6_route_add+0x1c/0x140
[ 4608.401650][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4608.401650][   T73]      addrconf_add_dev+0xe2/0x170
[ 4608.401650][   T73]      inet6_addr_add+0x12f/0xa40
[ 4608.401650][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4608.401650][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4608.401650][   T73]      netlink_rcv_skb+0x130/0x360
[ 4608.401650][   T73]      netlink_unicast+0x449/0x710
[ 4608.401650][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4608.401650][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4608.401650][   T73]      ___sys_sendmsg+0xee/0x170
[ 4608.401650][   T73]      __sys_sendmsg+0xcd/0x170
[ 4608.401650][   T73]      do_syscall_64+0xc6/0x1e0
[ 4608.401650][   T73] 
[ 4608.403907][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4608.403907][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4608.403907][   T73]      ipv6_find_idev+0x102/0x170
[ 4608.403907][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4608.403907][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4608.403907][   T73]      netlink_rcv_skb+0x130/0x360
[ 4608.403907][   T73]      netlink_unicast+0x449/0x710
[ 4608.403907][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4608.403907][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4608.403907][   T73]      ___sys_sendmsg+0xee/0x170
[ 4608.403907][   T73]      __sys_sendmsg+0xcd/0x170
[ 4608.403907][   T73]      do_syscall_64+0xc6/0x1e0
[ 4608.403907][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4608.403907][   T73] 
[ 4608.405713][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4608.405713][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4608.405713][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4608.405713][   T73]      ipv6_find_idev+0x102/0x170
[ 4608.405713][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4608.405713][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4608.405713][   T73]      netlink_rcv_skb+0x130/0x360
[ 4608.405713][   T73]      netlink_unicast+0x449/0x710
[ 4608.405713][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4608.405713][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4608.405713][   T73]      ___sys_sendmsg+0xee/0x170
[ 4608.405713][   T73]      __sys_sendmsg+0xcd/0x170
[ 4608.405713][   T73]      do_syscall_64+0xc6/0x1e0
[ 4608.405713][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4608.405713][   T73] 
[ 4618.647818][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4618.648210][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4618.648210][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4618.648210][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4618.648210][   T73]      fib6_nh_init+0xa22/0x1580
[ 4618.648210][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4618.648210][   T73]      ip6_route_add+0x1c/0x140
[ 4618.648210][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4618.648210][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4618.648210][   T73]      netlink_rcv_skb+0x130/0x360
[ 4618.648210][   T73]      netlink_unicast+0x449/0x710
[ 4618.648210][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4618.648210][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4618.648210][   T73]      ___sys_sendmsg+0xee/0x170
[ 4618.648210][   T73]      __sys_sendmsg+0xcd/0x170
[ 4618.648210][   T73]      do_syscall_64+0xc6/0x1e0
[ 4618.648210][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4618.648210][   T73] 
[ 4618.650153][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4618.650153][   T73]      dst_init+0x84/0x4a0
[ 4618.650153][   T73]      dst_alloc+0x97/0x150
[ 4618.650153][   T73]      ip6_dst_alloc+0x23/0x90
[ 4618.650153][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4618.650153][   T73]      ip6_pol_route+0x56f/0x840
[ 4618.650153][   T73]      fib6_rule_lookup+0x456/0x630
[ 4618.650153][   T73]      ip6_route_input+0x59c/0xa50
[ 4618.650153][   T73]      ipv6_rcv+0x397/0x810
[ 4618.650153][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4618.650153][   T73]      process_backlog+0x101/0x620
[ 4618.650153][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4618.650153][   T73]      net_rx_action+0x495/0xbe0
[ 4618.650153][   T73]      __do_softirq+0x1b5/0x7f6
[ 4618.650153][   T73] 
[ 4618.651863][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4618.651863][   T73]      netdev_get_by_index+0x5e/0x80
[ 4618.651863][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4618.651863][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4618.651863][   T73]      ip6_route_add+0x1c/0x140
[ 4618.651863][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4618.651863][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4618.651863][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4618.651863][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4618.651863][   T73]      netlink_rcv_skb+0x130/0x360
[ 4618.651863][   T73]      netlink_unicast+0x449/0x710
[ 4618.651863][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4618.651863][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4618.651863][   T73]      ___sys_sendmsg+0xee/0x170
[ 4618.651863][   T73]      __sys_sendmsg+0xcd/0x170
[ 4618.651863][   T73]      do_syscall_64+0xc6/0x1e0
[ 4618.651863][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4618.651863][   T73] 
[ 4618.653954][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4618.653954][   T73]      netdev_get_by_index+0x5e/0x80
[ 4618.653954][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4618.653954][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4618.653954][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4618.653954][   T73]      ipv6_add_addr+0x411/0x2000
[ 4618.653954][   T73]      inet6_addr_add+0x30e/0xa40
[ 4618.653954][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4618.653954][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4618.653954][   T73]      netlink_rcv_skb+0x130/0x360
[ 4618.653954][   T73]      netlink_unicast+0x449/0x710
[ 4618.653954][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4618.653954][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4618.653954][   T73]      ___sys_sendmsg+0xee/0x170
[ 4618.653954][   T73]      __sys_sendmsg+0xcd/0x170
[ 4618.653954][   T73]      do_syscall_64+0xc6/0x1e0
[ 4618.653954][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4618.653954][   T73] 
[ 4618.658798][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4618.658798][   T73]      netdev_get_by_index+0x5e/0x80
[ 4618.658798][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4618.658798][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4618.658798][   T73]      ip6_route_add+0x1c/0x140
[ 4618.658798][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4618.658798][   T73]      addrconf_add_dev+0xe2/0x170
[ 4618.658798][   T73]      inet6_addr_add+0x12f/0xa40
[ 4618.658798][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4618.658798][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4618.658798][   T73]      netlink_rcv_skb+0x130/0x360
[ 4618.658798][   T73]      netlink_unicast+0x449/0x710
[ 4618.658798][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4618.658798][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4618.658798][   T73]      ___sys_sendmsg+0xee/0x170
[ 4618.658798][   T73]      __sys_sendmsg+0xcd/0x170
[ 4618.658798][   T73]      do_syscall_64+0xc6/0x1e0
[ 4618.658798][   T73] 
[ 4618.660834][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4618.660834][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4618.660834][   T73]      ipv6_find_idev+0x102/0x170
[ 4618.660834][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4618.660834][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4618.660834][   T73]      netlink_rcv_skb+0x130/0x360
[ 4618.660834][   T73]      netlink_unicast+0x449/0x710
[ 4618.660834][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4618.660834][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4618.660834][   T73]      ___sys_sendmsg+0xee/0x170
[ 4618.660834][   T73]      __sys_sendmsg+0xcd/0x170
[ 4618.660834][   T73]      do_syscall_64+0xc6/0x1e0
[ 4618.660834][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4618.660834][   T73] 
[ 4618.662415][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4618.662415][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4618.662415][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4618.662415][   T73]      ipv6_find_idev+0x102/0x170
[ 4618.662415][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4618.662415][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4618.662415][   T73]      netlink_rcv_skb+0x130/0x360
[ 4618.662415][   T73]      netlink_unicast+0x449/0x710
[ 4618.662415][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4618.662415][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4618.662415][   T73]      ___sys_sendmsg+0xee/0x170
[ 4618.662415][   T73]      __sys_sendmsg+0xcd/0x170
[ 4618.662415][   T73]      do_syscall_64+0xc6/0x1e0
[ 4618.662415][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4618.662415][   T73] 
[ 4618.664170][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4618.664454][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4618.664454][   T73]      netdev_get_by_index+0x5e/0x80
[ 4618.664454][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4618.664454][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4618.664454][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4618.664454][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4618.664454][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4618.664454][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4618.664454][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4618.664454][   T73]      addrconf_dad_begin+0x310/0x670
[ 4618.664454][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4618.664454][   T73]      process_one_work+0x84d/0x18a0
[ 4618.664454][   T73]      worker_thread+0x587/0xd30
[ 4618.664454][   T73]      kthread+0x28a/0x350
[ 4618.664454][   T73]      ret_from_fork+0x31/0x70
[ 4618.664454][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4618.664454][   T73] 
[ 4618.666427][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4618.666427][   T73]      netdev_get_by_index+0x5e/0x80
[ 4618.666427][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4618.666427][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4618.666427][   T73]      ip6_route_add+0x1c/0x140
[ 4618.666427][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4618.666427][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4618.666427][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4618.666427][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4618.666427][   T73]      netlink_rcv_skb+0x130/0x360
[ 4618.666427][   T73]      netlink_unicast+0x449/0x710
[ 4618.666427][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4618.666427][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4618.666427][   T73]      ___sys_sendmsg+0xee/0x170
[ 4618.666427][   T73]      __sys_sendmsg+0xcd/0x170
[ 4618.666427][   T73]      do_syscall_64+0xc6/0x1e0
[ 4618.666427][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4618.666427][   T73] 
[ 4618.668488][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4618.668488][   T73]      netdev_get_by_index+0x5e/0x80
[ 4618.668488][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4618.668488][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4618.668488][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4618.668488][   T73]      ipv6_add_addr+0x411/0x2000
[ 4618.668488][   T73]      inet6_addr_add+0x30e/0xa40
[ 4618.668488][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4618.668488][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4618.668488][   T73]      netlink_rcv_skb+0x130/0x360
[ 4618.668488][   T73]      netlink_unicast+0x449/0x710
[ 4618.668488][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4618.668488][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4618.668488][   T73]      ___sys_sendmsg+0xee/0x170
[ 4618.668488][   T73]      __sys_sendmsg+0xcd/0x170
[ 4618.668488][   T73]      do_syscall_64+0xc6/0x1e0
[ 4618.668488][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4618.668488][   T73] 
[ 4618.670564][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4618.670564][   T73]      netdev_get_by_index+0x5e/0x80
[ 4618.670564][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4618.670564][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4618.670564][   T73]      ip6_route_add+0x1c/0x140
[ 4618.670564][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4618.670564][   T73]      addrconf_add_dev+0xe2/0x170
[ 4618.670564][   T73]      inet6_addr_add+0x12f/0xa40
[ 4618.670564][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4618.670564][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4618.670564][   T73]      netlink_rcv_skb+0x130/0x360
[ 4618.670564][   T73]      netlink_unicast+0x449/0x710
[ 4618.670564][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4618.670564][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4618.670564][   T73]      ___sys_sendmsg+0xee/0x170
[ 4618.670564][   T73]      __sys_sendmsg+0xcd/0x170
[ 4618.670564][   T73]      do_syscall_64+0xc6/0x1e0
[ 4618.670564][   T73] 
[ 4618.672569][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4618.672569][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4618.672569][   T73]      ipv6_find_idev+0x102/0x170
[ 4618.672569][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4618.672569][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4618.672569][   T73]      netlink_rcv_skb+0x130/0x360
[ 4618.672569][   T73]      netlink_unicast+0x449/0x710
[ 4618.672569][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4618.672569][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4618.672569][   T73]      ___sys_sendmsg+0xee/0x170
[ 4618.672569][   T73]      __sys_sendmsg+0xcd/0x170
[ 4618.672569][   T73]      do_syscall_64+0xc6/0x1e0
[ 4618.672569][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4618.672569][   T73] 
[ 4618.674158][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4618.674158][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4618.674158][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4618.674158][   T73]      ipv6_find_idev+0x102/0x170
[ 4618.674158][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4618.674158][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4618.674158][   T73]      netlink_rcv_skb+0x130/0x360
[ 4618.674158][   T73]      netlink_unicast+0x449/0x710
[ 4618.674158][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4618.674158][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4618.674158][   T73]      ___sys_sendmsg+0xee/0x170
[ 4618.674158][   T73]      __sys_sendmsg+0xcd/0x170
[ 4618.674158][   T73]      do_syscall_64+0xc6/0x1e0
[ 4618.674158][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4618.674158][   T73] 
[ 4618.675892][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4618.676179][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4618.676179][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4618.676179][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4618.676179][   T73]      fib6_nh_init+0xa22/0x1580
[ 4618.676179][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4618.676179][   T73]      ip6_route_add+0x1c/0x140
[ 4618.676179][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4618.676179][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4618.676179][   T73]      netlink_rcv_skb+0x130/0x360
[ 4618.676179][   T73]      netlink_unicast+0x449/0x710
[ 4618.676179][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4618.676179][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4618.676179][   T73]      ___sys_sendmsg+0xee/0x170
[ 4618.676179][   T73]      __sys_sendmsg+0xcd/0x170
[ 4618.676179][   T73]      do_syscall_64+0xc6/0x1e0
[ 4618.676179][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4618.676179][   T73] 
[ 4618.678306][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4618.678306][   T73]      dst_init+0x84/0x4a0
[ 4618.678306][   T73]      dst_alloc+0x97/0x150
[ 4618.678306][   T73]      ip6_dst_alloc+0x23/0x90
[ 4618.678306][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4618.678306][   T73]      ip6_pol_route+0x56f/0x840
[ 4618.678306][   T73]      fib6_rule_lookup+0x456/0x630
[ 4618.678306][   T73]      ip6_route_input+0x59c/0xa50
[ 4618.678306][   T73]      ipv6_rcv+0x397/0x810
[ 4618.678306][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4618.678306][   T73]      process_backlog+0x101/0x620
[ 4618.678306][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4618.678306][   T73]      net_rx_action+0x495/0xbe0
[ 4618.678306][   T73]      __do_softirq+0x1b5/0x7f6
[ 4618.678306][   T73] 
[ 4618.680164][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4618.680164][   T73]      netdev_get_by_index+0x5e/0x80
[ 4618.680164][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4618.680164][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4618.680164][   T73]      ip6_route_add+0x1c/0x140
[ 4618.680164][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4618.680164][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4618.680164][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4618.680164][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4618.680164][   T73]      netlink_rcv_skb+0x130/0x360
[ 4618.680164][   T73]      netlink_unicast+0x449/0x710
[ 4618.680164][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4618.680164][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4618.680164][   T73]      ___sys_sendmsg+0xee/0x170
[ 4618.680164][   T73]      __sys_sendmsg+0xcd/0x170
[ 4618.680164][   T73]      do_syscall_64+0xc6/0x1e0
[ 4618.680164][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4618.680164][   T73] 
[ 4618.682483][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4618.682483][   T73]      netdev_get_by_index+0x5e/0x80
[ 4618.682483][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4618.682483][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4618.682483][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4618.682483][   T73]      ipv6_add_addr+0x411/0x2000
[ 4618.682483][   T73]      inet6_addr_add+0x30e/0xa40
[ 4618.682483][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4618.682483][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4618.682483][   T73]      netlink_rcv_skb+0x130/0x360
[ 4618.682483][   T73]      netlink_unicast+0x449/0x710
[ 4618.682483][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4618.682483][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4618.682483][   T73]      ___sys_sendmsg+0xee/0x170
[ 4618.682483][   T73]      __sys_sendmsg+0xcd/0x170
[ 4618.682483][   T73]      do_syscall_64+0xc6/0x1e0
[ 4618.682483][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4618.682483][   T73] 
[ 4618.684784][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4618.684784][   T73]      netdev_get_by_index+0x5e/0x80
[ 4618.684784][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4618.684784][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4618.684784][   T73]      ip6_route_add+0x1c/0x140
[ 4618.684784][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4618.684784][   T73]      addrconf_add_dev+0xe2/0x170
[ 4618.684784][   T73]      inet6_addr_add+0x12f/0xa40
[ 4618.684784][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4618.684784][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4618.684784][   T73]      netlink_rcv_skb+0x130/0x360
[ 4618.684784][   T73]      netlink_unicast+0x449/0x710
[ 4618.684784][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4618.684784][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4618.684784][   T73]      ___sys_sendmsg+0xee/0x170
[ 4618.684784][   T73]      __sys_sendmsg+0xcd/0x170
[ 4618.684784][   T73]      do_syscall_64+0xc6/0x1e0
[ 4618.684784][   T73] 
[ 4618.687049][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4618.687049][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4618.687049][   T73]      ipv6_find_idev+0x102/0x170
[ 4618.687049][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4618.687049][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4618.687049][   T73]      netlink_rcv_skb+0x130/0x360
[ 4618.687049][   T73]      netlink_unicast+0x449/0x710
[ 4618.687049][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4618.687049][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4618.687049][   T73]      ___sys_sendmsg+0xee/0x170
[ 4618.687049][   T73]      __sys_sendmsg+0xcd/0x170
[ 4618.687049][   T73]      do_syscall_64+0xc6/0x1e0
[ 4618.687049][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4618.687049][   T73] 
[ 4618.688810][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4618.688810][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4618.688810][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4618.688810][   T73]      ipv6_find_idev+0x102/0x170
[ 4618.688810][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4618.688810][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4618.688810][   T73]      netlink_rcv_skb+0x130/0x360
[ 4618.688810][   T73]      netlink_unicast+0x449/0x710
[ 4618.688810][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4618.688810][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4618.688810][   T73]      ___sys_sendmsg+0xee/0x170
[ 4618.688810][   T73]      __sys_sendmsg+0xcd/0x170
[ 4618.688810][   T73]      do_syscall_64+0xc6/0x1e0
[ 4618.688810][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4618.688810][   T73] 
[ 4618.690786][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4618.691072][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4618.691072][   T73]      netdev_get_by_index+0x5e/0x80
[ 4618.691072][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4618.691072][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4618.691072][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4618.691072][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4618.691072][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4618.691072][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4618.691072][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4618.691072][   T73]      addrconf_dad_begin+0x310/0x670
[ 4618.691072][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4618.691072][   T73]      process_one_work+0x84d/0x18a0
[ 4618.691072][   T73]      worker_thread+0x587/0xd30
[ 4618.691072][   T73]      kthread+0x28a/0x350
[ 4618.691072][   T73]      ret_from_fork+0x31/0x70
[ 4618.691072][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4618.691072][   T73] 
[ 4618.693279][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4618.693279][   T73]      netdev_get_by_index+0x5e/0x80
[ 4618.693279][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4618.693279][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4618.693279][   T73]      ip6_route_add+0x1c/0x140
[ 4618.693279][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4618.693279][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4618.693279][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4618.693279][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4618.693279][   T73]      netlink_rcv_skb+0x130/0x360
[ 4618.693279][   T73]      netlink_unicast+0x449/0x710
[ 4618.693279][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4618.693279][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4618.693279][   T73]      ___sys_sendmsg+0xee/0x170
[ 4618.693279][   T73]      __sys_sendmsg+0xcd/0x170
[ 4618.693279][   T73]      do_syscall_64+0xc6/0x1e0
[ 4618.693279][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4618.693279][   T73] 
[ 4618.695514][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4618.695514][   T73]      netdev_get_by_index+0x5e/0x80
[ 4618.695514][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4618.695514][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4618.695514][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4618.695514][   T73]      ipv6_add_addr+0x411/0x2000
[ 4618.695514][   T73]      inet6_addr_add+0x30e/0xa40
[ 4618.695514][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4618.695514][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4618.695514][   T73]      netlink_rcv_skb+0x130/0x360
[ 4618.695514][   T73]      netlink_unicast+0x449/0x710
[ 4618.695514][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4618.695514][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4618.695514][   T73]      ___sys_sendmsg+0xee/0x170
[ 4618.695514][   T73]      __sys_sendmsg+0xcd/0x170
[ 4618.695514][   T73]      do_syscall_64+0xc6/0x1e0
[ 4618.695514][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4618.695514][   T73] 
[ 4618.697875][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4618.697875][   T73]      netdev_get_by_index+0x5e/0x80
[ 4618.697875][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4618.697875][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4618.697875][   T73]      ip6_route_add+0x1c/0x140
[ 4618.697875][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4618.697875][   T73]      addrconf_add_dev+0xe2/0x170
[ 4618.697875][   T73]      inet6_addr_add+0x12f/0xa40
[ 4618.697875][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4618.697875][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4618.697875][   T73]      netlink_rcv_skb+0x130/0x360
[ 4618.697875][   T73]      netlink_unicast+0x449/0x710
[ 4618.697875][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4618.697875][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4618.697875][   T73]      ___sys_sendmsg+0xee/0x170
[ 4618.697875][   T73]      __sys_sendmsg+0xcd/0x170
[ 4618.697875][   T73]      do_syscall_64+0xc6/0x1e0
[ 4618.697875][   T73] 
[ 4618.700160][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4618.700160][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4618.700160][   T73]      ipv6_find_idev+0x102/0x170
[ 4618.700160][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4618.700160][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4618.700160][   T73]      netlink_rcv_skb+0x130/0x360
[ 4618.700160][   T73]      netlink_unicast+0x449/0x710
[ 4618.700160][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4618.700160][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4618.700160][   T73]      ___sys_sendmsg+0xee/0x170
[ 4618.700160][   T73]      __sys_sendmsg+0xcd/0x170
[ 4618.700160][   T73]      do_syscall_64+0xc6/0x1e0
[ 4618.700160][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4618.700160][   T73] 
[ 4618.701931][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4618.701931][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4618.701931][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4618.701931][   T73]      ipv6_find_idev+0x102/0x170
[ 4618.701931][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4618.701931][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4618.701931][   T73]      netlink_rcv_skb+0x130/0x360
[ 4618.701931][   T73]      netlink_unicast+0x449/0x710
[ 4618.701931][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4618.701931][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4618.701931][   T73]      ___sys_sendmsg+0xee/0x170
[ 4618.701931][   T73]      __sys_sendmsg+0xcd/0x170
[ 4618.701931][   T73]      do_syscall_64+0xc6/0x1e0
[ 4618.701931][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4618.701931][   T73] 
[ 4628.943783][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4628.944294][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4628.944294][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4628.944294][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4628.944294][   T73]      fib6_nh_init+0xa22/0x1580
[ 4628.944294][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4628.944294][   T73]      ip6_route_add+0x1c/0x140
[ 4628.944294][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4628.944294][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4628.944294][   T73]      netlink_rcv_skb+0x130/0x360
[ 4628.944294][   T73]      netlink_unicast+0x449/0x710
[ 4628.944294][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4628.944294][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4628.944294][   T73]      ___sys_sendmsg+0xee/0x170
[ 4628.944294][   T73]      __sys_sendmsg+0xcd/0x170
[ 4628.944294][   T73]      do_syscall_64+0xc6/0x1e0
[ 4628.944294][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4628.944294][   T73] 
[ 4628.946252][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4628.946252][   T73]      dst_init+0x84/0x4a0
[ 4628.946252][   T73]      dst_alloc+0x97/0x150
[ 4628.946252][   T73]      ip6_dst_alloc+0x23/0x90
[ 4628.946252][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4628.946252][   T73]      ip6_pol_route+0x56f/0x840
[ 4628.946252][   T73]      fib6_rule_lookup+0x456/0x630
[ 4628.946252][   T73]      ip6_route_input+0x59c/0xa50
[ 4628.946252][   T73]      ipv6_rcv+0x397/0x810
[ 4628.946252][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4628.946252][   T73]      process_backlog+0x101/0x620
[ 4628.946252][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4628.946252][   T73]      net_rx_action+0x495/0xbe0
[ 4628.946252][   T73]      __do_softirq+0x1b5/0x7f6
[ 4628.946252][   T73] 
[ 4628.947953][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4628.947953][   T73]      netdev_get_by_index+0x5e/0x80
[ 4628.947953][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4628.947953][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4628.947953][   T73]      ip6_route_add+0x1c/0x140
[ 4628.947953][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4628.947953][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4628.947953][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4628.947953][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4628.947953][   T73]      netlink_rcv_skb+0x130/0x360
[ 4628.947953][   T73]      netlink_unicast+0x449/0x710
[ 4628.947953][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4628.947953][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4628.947953][   T73]      ___sys_sendmsg+0xee/0x170
[ 4628.947953][   T73]      __sys_sendmsg+0xcd/0x170
[ 4628.947953][   T73]      do_syscall_64+0xc6/0x1e0
[ 4628.947953][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4628.947953][   T73] 
[ 4628.950023][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4628.950023][   T73]      netdev_get_by_index+0x5e/0x80
[ 4628.950023][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4628.950023][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4628.950023][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4628.950023][   T73]      ipv6_add_addr+0x411/0x2000
[ 4628.950023][   T73]      inet6_addr_add+0x30e/0xa40
[ 4628.950023][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4628.950023][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4628.950023][   T73]      netlink_rcv_skb+0x130/0x360
[ 4628.950023][   T73]      netlink_unicast+0x449/0x710
[ 4628.950023][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4628.950023][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4628.950023][   T73]      ___sys_sendmsg+0xee/0x170
[ 4628.950023][   T73]      __sys_sendmsg+0xcd/0x170
[ 4628.950023][   T73]      do_syscall_64+0xc6/0x1e0
[ 4628.950023][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4628.950023][   T73] 
[ 4628.952086][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4628.952086][   T73]      netdev_get_by_index+0x5e/0x80
[ 4628.952086][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4628.952086][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4628.952086][   T73]      ip6_route_add+0x1c/0x140
[ 4628.952086][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4628.952086][   T73]      addrconf_add_dev+0xe2/0x170
[ 4628.952086][   T73]      inet6_addr_add+0x12f/0xa40
[ 4628.952086][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4628.952086][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4628.952086][   T73]      netlink_rcv_skb+0x130/0x360
[ 4628.952086][   T73]      netlink_unicast+0x449/0x710
[ 4628.952086][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4628.952086][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4628.952086][   T73]      ___sys_sendmsg+0xee/0x170
[ 4628.952086][   T73]      __sys_sendmsg+0xcd/0x170
[ 4628.952086][   T73]      do_syscall_64+0xc6/0x1e0
[ 4628.952086][   T73] 
[ 4629.024257][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4629.024257][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4629.024257][   T73]      ipv6_find_idev+0x102/0x170
[ 4629.024257][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4629.024257][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4629.024257][   T73]      netlink_rcv_skb+0x130/0x360
[ 4629.024257][   T73]      netlink_unicast+0x449/0x710
[ 4629.024257][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4629.024257][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4629.024257][   T73]      ___sys_sendmsg+0xee/0x170
[ 4629.024257][   T73]      __sys_sendmsg+0xcd/0x170
[ 4629.024257][   T73]      do_syscall_64+0xc6/0x1e0
[ 4629.024257][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4629.024257][   T73] 
[ 4629.025861][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4629.025861][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4629.025861][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4629.025861][   T73]      ipv6_find_idev+0x102/0x170
[ 4629.025861][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4629.025861][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4629.025861][   T73]      netlink_rcv_skb+0x130/0x360
[ 4629.025861][   T73]      netlink_unicast+0x449/0x710
[ 4629.025861][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4629.025861][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4629.025861][   T73]      ___sys_sendmsg+0xee/0x170
[ 4629.025861][   T73]      __sys_sendmsg+0xcd/0x170
[ 4629.025861][   T73]      do_syscall_64+0xc6/0x1e0
[ 4629.025861][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4629.025861][   T73] 
[ 4629.027628][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4629.027934][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4629.027934][   T73]      netdev_get_by_index+0x5e/0x80
[ 4629.027934][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4629.027934][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4629.027934][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4629.027934][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4629.027934][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4629.027934][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4629.027934][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4629.027934][   T73]      addrconf_dad_begin+0x310/0x670
[ 4629.027934][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4629.027934][   T73]      process_one_work+0x84d/0x18a0
[ 4629.027934][   T73]      worker_thread+0x587/0xd30
[ 4629.027934][   T73]      kthread+0x28a/0x350
[ 4629.027934][   T73]      ret_from_fork+0x31/0x70
[ 4629.027934][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4629.027934][   T73] 
[ 4629.029917][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4629.029917][   T73]      netdev_get_by_index+0x5e/0x80
[ 4629.029917][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4629.029917][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4629.029917][   T73]      ip6_route_add+0x1c/0x140
[ 4629.029917][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4629.029917][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4629.029917][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4629.029917][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4629.029917][   T73]      netlink_rcv_skb+0x130/0x360
[ 4629.029917][   T73]      netlink_unicast+0x449/0x710
[ 4629.029917][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4629.029917][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4629.029917][   T73]      ___sys_sendmsg+0xee/0x170
[ 4629.029917][   T73]      __sys_sendmsg+0xcd/0x170
[ 4629.029917][   T73]      do_syscall_64+0xc6/0x1e0
[ 4629.029917][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4629.029917][   T73] 
[ 4629.031977][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4629.031977][   T73]      netdev_get_by_index+0x5e/0x80
[ 4629.031977][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4629.031977][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4629.031977][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4629.031977][   T73]      ipv6_add_addr+0x411/0x2000
[ 4629.031977][   T73]      inet6_addr_add+0x30e/0xa40
[ 4629.031977][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4629.031977][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4629.031977][   T73]      netlink_rcv_skb+0x130/0x360
[ 4629.031977][   T73]      netlink_unicast+0x449/0x710
[ 4629.031977][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4629.031977][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4629.031977][   T73]      ___sys_sendmsg+0xee/0x170
[ 4629.031977][   T73]      __sys_sendmsg+0xcd/0x170
[ 4629.031977][   T73]      do_syscall_64+0xc6/0x1e0
[ 4629.031977][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4629.031977][   T73] 
[ 4629.034059][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4629.034059][   T73]      netdev_get_by_index+0x5e/0x80
[ 4629.034059][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4629.034059][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4629.034059][   T73]      ip6_route_add+0x1c/0x140
[ 4629.034059][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4629.034059][   T73]      addrconf_add_dev+0xe2/0x170
[ 4629.034059][   T73]      inet6_addr_add+0x12f/0xa40
[ 4629.034059][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4629.034059][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4629.034059][   T73]      netlink_rcv_skb+0x130/0x360
[ 4629.034059][   T73]      netlink_unicast+0x449/0x710
[ 4629.034059][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4629.034059][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4629.034059][   T73]      ___sys_sendmsg+0xee/0x170
[ 4629.034059][   T73]      __sys_sendmsg+0xcd/0x170
[ 4629.034059][   T73]      do_syscall_64+0xc6/0x1e0
[ 4629.034059][   T73] 
[ 4629.036085][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4629.036085][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4629.036085][   T73]      ipv6_find_idev+0x102/0x170
[ 4629.036085][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4629.036085][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4629.036085][   T73]      netlink_rcv_skb+0x130/0x360
[ 4629.036085][   T73]      netlink_unicast+0x449/0x710
[ 4629.036085][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4629.036085][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4629.036085][   T73]      ___sys_sendmsg+0xee/0x170
[ 4629.036085][   T73]      __sys_sendmsg+0xcd/0x170
[ 4629.036085][   T73]      do_syscall_64+0xc6/0x1e0
[ 4629.036085][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4629.036085][   T73] 
[ 4629.037672][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4629.037672][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4629.037672][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4629.037672][   T73]      ipv6_find_idev+0x102/0x170
[ 4629.037672][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4629.037672][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4629.037672][   T73]      netlink_rcv_skb+0x130/0x360
[ 4629.037672][   T73]      netlink_unicast+0x449/0x710
[ 4629.037672][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4629.037672][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4629.037672][   T73]      ___sys_sendmsg+0xee/0x170
[ 4629.037672][   T73]      __sys_sendmsg+0xcd/0x170
[ 4629.037672][   T73]      do_syscall_64+0xc6/0x1e0
[ 4629.037672][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4629.037672][   T73] 
[ 4629.039454][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4629.039743][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4629.039743][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4629.039743][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4629.039743][   T73]      fib6_nh_init+0xa22/0x1580
[ 4629.039743][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4629.039743][   T73]      ip6_route_add+0x1c/0x140
[ 4629.039743][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4629.039743][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4629.039743][   T73]      netlink_rcv_skb+0x130/0x360
[ 4629.039743][   T73]      netlink_unicast+0x449/0x710
[ 4629.039743][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4629.039743][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4629.039743][   T73]      ___sys_sendmsg+0xee/0x170
[ 4629.039743][   T73]      __sys_sendmsg+0xcd/0x170
[ 4629.039743][   T73]      do_syscall_64+0xc6/0x1e0
[ 4629.039743][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4629.039743][   T73] 
[ 4629.041878][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4629.041878][   T73]      dst_init+0x84/0x4a0
[ 4629.041878][   T73]      dst_alloc+0x97/0x150
[ 4629.041878][   T73]      ip6_dst_alloc+0x23/0x90
[ 4629.041878][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4629.041878][   T73]      ip6_pol_route+0x56f/0x840
[ 4629.041878][   T73]      fib6_rule_lookup+0x456/0x630
[ 4629.041878][   T73]      ip6_route_input+0x59c/0xa50
[ 4629.041878][   T73]      ipv6_rcv+0x397/0x810
[ 4629.041878][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4629.041878][   T73]      process_backlog+0x101/0x620
[ 4629.041878][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4629.041878][   T73]      net_rx_action+0x495/0xbe0
[ 4629.041878][   T73]      __do_softirq+0x1b5/0x7f6
[ 4629.041878][   T73] 
[ 4629.045793][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4629.045793][   T73]      netdev_get_by_index+0x5e/0x80
[ 4629.045793][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4629.045793][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4629.045793][   T73]      ip6_route_add+0x1c/0x140
[ 4629.045793][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4629.045793][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4629.045793][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4629.045793][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4629.045793][   T73]      netlink_rcv_skb+0x130/0x360
[ 4629.045793][   T73]      netlink_unicast+0x449/0x710
[ 4629.045793][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4629.045793][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4629.045793][   T73]      ___sys_sendmsg+0xee/0x170
[ 4629.045793][   T73]      __sys_sendmsg+0xcd/0x170
[ 4629.045793][   T73]      do_syscall_64+0xc6/0x1e0
[ 4629.045793][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4629.045793][   T73] 
[ 4629.048173][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4629.048173][   T73]      netdev_get_by_index+0x5e/0x80
[ 4629.048173][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4629.048173][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4629.048173][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4629.048173][   T73]      ipv6_add_addr+0x411/0x2000
[ 4629.048173][   T73]      inet6_addr_add+0x30e/0xa40
[ 4629.048173][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4629.048173][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4629.048173][   T73]      netlink_rcv_skb+0x130/0x360
[ 4629.048173][   T73]      netlink_unicast+0x449/0x710
[ 4629.048173][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4629.048173][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4629.048173][   T73]      ___sys_sendmsg+0xee/0x170
[ 4629.048173][   T73]      __sys_sendmsg+0xcd/0x170
[ 4629.048173][   T73]      do_syscall_64+0xc6/0x1e0
[ 4629.048173][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4629.048173][   T73] 
[ 4629.050481][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4629.050481][   T73]      netdev_get_by_index+0x5e/0x80
[ 4629.050481][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4629.050481][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4629.050481][   T73]      ip6_route_add+0x1c/0x140
[ 4629.050481][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4629.050481][   T73]      addrconf_add_dev+0xe2/0x170
[ 4629.050481][   T73]      inet6_addr_add+0x12f/0xa40
[ 4629.050481][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4629.050481][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4629.050481][   T73]      netlink_rcv_skb+0x130/0x360
[ 4629.050481][   T73]      netlink_unicast+0x449/0x710
[ 4629.050481][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4629.050481][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4629.050481][   T73]      ___sys_sendmsg+0xee/0x170
[ 4629.050481][   T73]      __sys_sendmsg+0xcd/0x170
[ 4629.050481][   T73]      do_syscall_64+0xc6/0x1e0
[ 4629.050481][   T73] 
[ 4629.052642][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4629.052642][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4629.052642][   T73]      ipv6_find_idev+0x102/0x170
[ 4629.052642][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4629.052642][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4629.052642][   T73]      netlink_rcv_skb+0x130/0x360
[ 4629.052642][   T73]      netlink_unicast+0x449/0x710
[ 4629.052642][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4629.052642][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4629.052642][   T73]      ___sys_sendmsg+0xee/0x170
[ 4629.052642][   T73]      __sys_sendmsg+0xcd/0x170
[ 4629.052642][   T73]      do_syscall_64+0xc6/0x1e0
[ 4629.052642][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4629.052642][   T73] 
[ 4629.054424][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4629.054424][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4629.054424][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4629.054424][   T73]      ipv6_find_idev+0x102/0x170
[ 4629.054424][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4629.054424][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4629.054424][   T73]      netlink_rcv_skb+0x130/0x360
[ 4629.054424][   T73]      netlink_unicast+0x449/0x710
[ 4629.054424][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4629.054424][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4629.054424][   T73]      ___sys_sendmsg+0xee/0x170
[ 4629.054424][   T73]      __sys_sendmsg+0xcd/0x170
[ 4629.054424][   T73]      do_syscall_64+0xc6/0x1e0
[ 4629.054424][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4629.054424][   T73] 
[ 4629.056403][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4629.057195][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4629.057195][   T73]      netdev_get_by_index+0x5e/0x80
[ 4629.057195][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4629.057195][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4629.057195][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4629.057195][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4629.057195][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4629.057195][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4629.057195][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4629.057195][   T73]      addrconf_dad_begin+0x310/0x670
[ 4629.057195][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4629.057195][   T73]      process_one_work+0x84d/0x18a0
[ 4629.057195][   T73]      worker_thread+0x587/0xd30
[ 4629.057195][   T73]      kthread+0x28a/0x350
[ 4629.057195][   T73]      ret_from_fork+0x31/0x70
[ 4629.057195][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4629.057195][   T73] 
[ 4629.059161][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4629.059161][   T73]      netdev_get_by_index+0x5e/0x80
[ 4629.059161][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4629.059161][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4629.059161][   T73]      ip6_route_add+0x1c/0x140
[ 4629.059161][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4629.059161][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4629.059161][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4629.059161][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4629.059161][   T73]      netlink_rcv_skb+0x130/0x360
[ 4629.059161][   T73]      netlink_unicast+0x449/0x710
[ 4629.059161][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4629.059161][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4629.059161][   T73]      ___sys_sendmsg+0xee/0x170
[ 4629.059161][   T73]      __sys_sendmsg+0xcd/0x170
[ 4629.059161][   T73]      do_syscall_64+0xc6/0x1e0
[ 4629.059161][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4629.059161][   T73] 
[ 4629.061400][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4629.061400][   T73]      netdev_get_by_index+0x5e/0x80
[ 4629.061400][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4629.061400][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4629.061400][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4629.061400][   T73]      ipv6_add_addr+0x411/0x2000
[ 4629.061400][   T73]      inet6_addr_add+0x30e/0xa40
[ 4629.061400][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4629.061400][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4629.061400][   T73]      netlink_rcv_skb+0x130/0x360
[ 4629.061400][   T73]      netlink_unicast+0x449/0x710
[ 4629.061400][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4629.061400][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4629.061400][   T73]      ___sys_sendmsg+0xee/0x170
[ 4629.061400][   T73]      __sys_sendmsg+0xcd/0x170
[ 4629.061400][   T73]      do_syscall_64+0xc6/0x1e0
[ 4629.061400][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4629.061400][   T73] 
[ 4629.063664][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4629.063664][   T73]      netdev_get_by_index+0x5e/0x80
[ 4629.063664][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4629.063664][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4629.063664][   T73]      ip6_route_add+0x1c/0x140
[ 4629.063664][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4629.063664][   T73]      addrconf_add_dev+0xe2/0x170
[ 4629.063664][   T73]      inet6_addr_add+0x12f/0xa40
[ 4629.063664][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4629.063664][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4629.063664][   T73]      netlink_rcv_skb+0x130/0x360
[ 4629.063664][   T73]      netlink_unicast+0x449/0x710
[ 4629.063664][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4629.063664][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4629.063664][   T73]      ___sys_sendmsg+0xee/0x170
[ 4629.063664][   T73]      __sys_sendmsg+0xcd/0x170
[ 4629.063664][   T73]      do_syscall_64+0xc6/0x1e0
[ 4629.063664][   T73] 
[ 4629.065945][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4629.065945][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4629.065945][   T73]      ipv6_find_idev+0x102/0x170
[ 4629.065945][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4629.065945][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4629.065945][   T73]      netlink_rcv_skb+0x130/0x360
[ 4629.065945][   T73]      netlink_unicast+0x449/0x710
[ 4629.065945][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4629.065945][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4629.065945][   T73]      ___sys_sendmsg+0xee/0x170
[ 4629.065945][   T73]      __sys_sendmsg+0xcd/0x170
[ 4629.065945][   T73]      do_syscall_64+0xc6/0x1e0
[ 4629.065945][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4629.065945][   T73] 
[ 4629.067717][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4629.067717][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4629.067717][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4629.067717][   T73]      ipv6_find_idev+0x102/0x170
[ 4629.067717][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4629.067717][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4629.067717][   T73]      netlink_rcv_skb+0x130/0x360
[ 4629.067717][   T73]      netlink_unicast+0x449/0x710
[ 4629.067717][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4629.067717][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4629.067717][   T73]      ___sys_sendmsg+0xee/0x170
[ 4629.067717][   T73]      __sys_sendmsg+0xcd/0x170
[ 4629.067717][   T73]      do_syscall_64+0xc6/0x1e0
[ 4629.067717][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4629.067717][   T73] 
[ 4639.311762][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4639.312293][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4639.312293][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4639.312293][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4639.312293][   T73]      fib6_nh_init+0xa22/0x1580
[ 4639.312293][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4639.312293][   T73]      ip6_route_add+0x1c/0x140
[ 4639.312293][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4639.312293][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4639.312293][   T73]      netlink_rcv_skb+0x130/0x360
[ 4639.312293][   T73]      netlink_unicast+0x449/0x710
[ 4639.312293][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4639.312293][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4639.312293][   T73]      ___sys_sendmsg+0xee/0x170
[ 4639.312293][   T73]      __sys_sendmsg+0xcd/0x170
[ 4639.312293][   T73]      do_syscall_64+0xc6/0x1e0
[ 4639.312293][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4639.312293][   T73] 
[ 4639.314406][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4639.314406][   T73]      dst_init+0x84/0x4a0
[ 4639.314406][   T73]      dst_alloc+0x97/0x150
[ 4639.314406][   T73]      ip6_dst_alloc+0x23/0x90
[ 4639.314406][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4639.314406][   T73]      ip6_pol_route+0x56f/0x840
[ 4639.314406][   T73]      fib6_rule_lookup+0x456/0x630
[ 4639.314406][   T73]      ip6_route_input+0x59c/0xa50
[ 4639.314406][   T73]      ipv6_rcv+0x397/0x810
[ 4639.314406][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4639.314406][   T73]      process_backlog+0x101/0x620
[ 4639.314406][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4639.314406][   T73]      net_rx_action+0x495/0xbe0
[ 4639.314406][   T73]      __do_softirq+0x1b5/0x7f6
[ 4639.314406][   T73] 
[ 4639.316221][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4639.316221][   T73]      netdev_get_by_index+0x5e/0x80
[ 4639.316221][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4639.316221][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4639.316221][   T73]      ip6_route_add+0x1c/0x140
[ 4639.316221][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4639.316221][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4639.316221][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4639.316221][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4639.316221][   T73]      netlink_rcv_skb+0x130/0x360
[ 4639.316221][   T73]      netlink_unicast+0x449/0x710
[ 4639.316221][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4639.316221][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4639.316221][   T73]      ___sys_sendmsg+0xee/0x170
[ 4639.316221][   T73]      __sys_sendmsg+0xcd/0x170
[ 4639.316221][   T73]      do_syscall_64+0xc6/0x1e0
[ 4639.316221][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4639.316221][   T73] 
[ 4639.318448][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4639.318448][   T73]      netdev_get_by_index+0x5e/0x80
[ 4639.318448][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4639.318448][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4639.318448][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4639.318448][   T73]      ipv6_add_addr+0x411/0x2000
[ 4639.318448][   T73]      inet6_addr_add+0x30e/0xa40
[ 4639.318448][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4639.318448][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4639.318448][   T73]      netlink_rcv_skb+0x130/0x360
[ 4639.318448][   T73]      netlink_unicast+0x449/0x710
[ 4639.318448][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4639.318448][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4639.318448][   T73]      ___sys_sendmsg+0xee/0x170
[ 4639.318448][   T73]      __sys_sendmsg+0xcd/0x170
[ 4639.318448][   T73]      do_syscall_64+0xc6/0x1e0
[ 4639.318448][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4639.318448][   T73] 
[ 4639.320655][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4639.320655][   T73]      netdev_get_by_index+0x5e/0x80
[ 4639.320655][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4639.320655][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4639.320655][   T73]      ip6_route_add+0x1c/0x140
[ 4639.320655][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4639.320655][   T73]      addrconf_add_dev+0xe2/0x170
[ 4639.320655][   T73]      inet6_addr_add+0x12f/0xa40
[ 4639.320655][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4639.320655][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4639.320655][   T73]      netlink_rcv_skb+0x130/0x360
[ 4639.320655][   T73]      netlink_unicast+0x449/0x710
[ 4639.320655][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4639.320655][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4639.320655][   T73]      ___sys_sendmsg+0xee/0x170
[ 4639.320655][   T73]      __sys_sendmsg+0xcd/0x170
[ 4639.320655][   T73]      do_syscall_64+0xc6/0x1e0
[ 4639.320655][   T73] 
[ 4639.322830][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4639.322830][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4639.322830][   T73]      ipv6_find_idev+0x102/0x170
[ 4639.322830][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4639.322830][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4639.322830][   T73]      netlink_rcv_skb+0x130/0x360
[ 4639.322830][   T73]      netlink_unicast+0x449/0x710
[ 4639.322830][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4639.322830][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4639.322830][   T73]      ___sys_sendmsg+0xee/0x170
[ 4639.322830][   T73]      __sys_sendmsg+0xcd/0x170
[ 4639.322830][   T73]      do_syscall_64+0xc6/0x1e0
[ 4639.322830][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4639.322830][   T73] 
[ 4639.324550][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4639.324550][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4639.324550][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4639.324550][   T73]      ipv6_find_idev+0x102/0x170
[ 4639.324550][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4639.324550][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4639.324550][   T73]      netlink_rcv_skb+0x130/0x360
[ 4639.324550][   T73]      netlink_unicast+0x449/0x710
[ 4639.324550][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4639.324550][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4639.324550][   T73]      ___sys_sendmsg+0xee/0x170
[ 4639.324550][   T73]      __sys_sendmsg+0xcd/0x170
[ 4639.324550][   T73]      do_syscall_64+0xc6/0x1e0
[ 4639.324550][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4639.324550][   T73] 
[ 4639.326437][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4639.326749][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4639.326749][   T73]      netdev_get_by_index+0x5e/0x80
[ 4639.326749][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4639.326749][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4639.326749][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4639.326749][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4639.326749][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4639.326749][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4639.326749][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4639.326749][   T73]      addrconf_dad_begin+0x310/0x670
[ 4639.326749][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4639.326749][   T73]      process_one_work+0x84d/0x18a0
[ 4639.326749][   T73]      worker_thread+0x587/0xd30
[ 4639.326749][   T73]      kthread+0x28a/0x350
[ 4639.326749][   T73]      ret_from_fork+0x31/0x70
[ 4639.326749][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4639.326749][   T73] 
[ 4639.328885][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4639.328885][   T73]      netdev_get_by_index+0x5e/0x80
[ 4639.328885][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4639.328885][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4639.328885][   T73]      ip6_route_add+0x1c/0x140
[ 4639.328885][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4639.328885][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4639.328885][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4639.328885][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4639.328885][   T73]      netlink_rcv_skb+0x130/0x360
[ 4639.328885][   T73]      netlink_unicast+0x449/0x710
[ 4639.328885][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4639.328885][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4639.328885][   T73]      ___sys_sendmsg+0xee/0x170
[ 4639.328885][   T73]      __sys_sendmsg+0xcd/0x170
[ 4639.328885][   T73]      do_syscall_64+0xc6/0x1e0
[ 4639.328885][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4639.328885][   T73] 
[ 4639.331111][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4639.331111][   T73]      netdev_get_by_index+0x5e/0x80
[ 4639.331111][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4639.331111][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4639.331111][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4639.331111][   T73]      ipv6_add_addr+0x411/0x2000
[ 4639.331111][   T73]      inet6_addr_add+0x30e/0xa40
[ 4639.331111][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4639.331111][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4639.331111][   T73]      netlink_rcv_skb+0x130/0x360
[ 4639.331111][   T73]      netlink_unicast+0x449/0x710
[ 4639.331111][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4639.331111][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4639.331111][   T73]      ___sys_sendmsg+0xee/0x170
[ 4639.331111][   T73]      __sys_sendmsg+0xcd/0x170
[ 4639.331111][   T73]      do_syscall_64+0xc6/0x1e0
[ 4639.331111][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4639.331111][   T73] 
[ 4639.333329][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4639.333329][   T73]      netdev_get_by_index+0x5e/0x80
[ 4639.333329][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4639.333329][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4639.333329][   T73]      ip6_route_add+0x1c/0x140
[ 4639.333329][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4639.333329][   T73]      addrconf_add_dev+0xe2/0x170
[ 4639.333329][   T73]      inet6_addr_add+0x12f/0xa40
[ 4639.333329][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4639.333329][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4639.333329][   T73]      netlink_rcv_skb+0x130/0x360
[ 4639.333329][   T73]      netlink_unicast+0x449/0x710
[ 4639.333329][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4639.333329][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4639.333329][   T73]      ___sys_sendmsg+0xee/0x170
[ 4639.333329][   T73]      __sys_sendmsg+0xcd/0x170
[ 4639.333329][   T73]      do_syscall_64+0xc6/0x1e0
[ 4639.333329][   T73] 
[ 4639.335532][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4639.335532][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4639.335532][   T73]      ipv6_find_idev+0x102/0x170
[ 4639.335532][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4639.335532][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4639.335532][   T73]      netlink_rcv_skb+0x130/0x360
[ 4639.335532][   T73]      netlink_unicast+0x449/0x710
[ 4639.335532][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4639.335532][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4639.335532][   T73]      ___sys_sendmsg+0xee/0x170
[ 4639.335532][   T73]      __sys_sendmsg+0xcd/0x170
[ 4639.335532][   T73]      do_syscall_64+0xc6/0x1e0
[ 4639.335532][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4639.335532][   T73] 
[ 4639.337245][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4639.337245][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4639.337245][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4639.337245][   T73]      ipv6_find_idev+0x102/0x170
[ 4639.337245][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4639.337245][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4639.337245][   T73]      netlink_rcv_skb+0x130/0x360
[ 4639.337245][   T73]      netlink_unicast+0x449/0x710
[ 4639.337245][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4639.337245][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4639.337245][   T73]      ___sys_sendmsg+0xee/0x170
[ 4639.337245][   T73]      __sys_sendmsg+0xcd/0x170
[ 4639.337245][   T73]      do_syscall_64+0xc6/0x1e0
[ 4639.337245][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4639.337245][   T73] 
[ 4639.339107][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4639.339393][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4639.339393][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4639.339393][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4639.339393][   T73]      fib6_nh_init+0xa22/0x1580
[ 4639.339393][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4639.339393][   T73]      ip6_route_add+0x1c/0x140
[ 4639.339393][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4639.339393][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4639.339393][   T73]      netlink_rcv_skb+0x130/0x360
[ 4639.339393][   T73]      netlink_unicast+0x449/0x710
[ 4639.339393][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4639.339393][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4639.339393][   T73]      ___sys_sendmsg+0xee/0x170
[ 4639.339393][   T73]      __sys_sendmsg+0xcd/0x170
[ 4639.339393][   T73]      do_syscall_64+0xc6/0x1e0
[ 4639.339393][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4639.339393][   T73] 
[ 4639.341711][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4639.341711][   T73]      dst_init+0x84/0x4a0
[ 4639.341711][   T73]      dst_alloc+0x97/0x150
[ 4639.341711][   T73]      ip6_dst_alloc+0x23/0x90
[ 4639.341711][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4639.341711][   T73]      ip6_pol_route+0x56f/0x840
[ 4639.341711][   T73]      fib6_rule_lookup+0x456/0x630
[ 4639.341711][   T73]      ip6_route_input+0x59c/0xa50
[ 4639.341711][   T73]      ipv6_rcv+0x397/0x810
[ 4639.341711][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4639.341711][   T73]      process_backlog+0x101/0x620
[ 4639.341711][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4639.341711][   T73]      net_rx_action+0x495/0xbe0
[ 4639.341711][   T73]      __do_softirq+0x1b5/0x7f6
[ 4639.341711][   T73] 
[ 4639.343790][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4639.343790][   T73]      netdev_get_by_index+0x5e/0x80
[ 4639.343790][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4639.343790][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4639.343790][   T73]      ip6_route_add+0x1c/0x140
[ 4639.343790][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4639.343790][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4639.343790][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4639.343790][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4639.343790][   T73]      netlink_rcv_skb+0x130/0x360
[ 4639.343790][   T73]      netlink_unicast+0x449/0x710
[ 4639.343790][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4639.343790][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4639.343790][   T73]      ___sys_sendmsg+0xee/0x170
[ 4639.343790][   T73]      __sys_sendmsg+0xcd/0x170
[ 4639.343790][   T73]      do_syscall_64+0xc6/0x1e0
[ 4639.343790][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4639.343790][   T73] 
[ 4639.346252][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4639.346252][   T73]      netdev_get_by_index+0x5e/0x80
[ 4639.346252][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4639.346252][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4639.346252][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4639.346252][   T73]      ipv6_add_addr+0x411/0x2000
[ 4639.346252][   T73]      inet6_addr_add+0x30e/0xa40
[ 4639.346252][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4639.346252][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4639.346252][   T73]      netlink_rcv_skb+0x130/0x360
[ 4639.346252][   T73]      netlink_unicast+0x449/0x710
[ 4639.346252][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4639.346252][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4639.346252][   T73]      ___sys_sendmsg+0xee/0x170
[ 4639.346252][   T73]      __sys_sendmsg+0xcd/0x170
[ 4639.346252][   T73]      do_syscall_64+0xc6/0x1e0
[ 4639.346252][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4639.346252][   T73] 
[ 4639.348707][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4639.348707][   T73]      netdev_get_by_index+0x5e/0x80
[ 4639.348707][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4639.348707][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4639.348707][   T73]      ip6_route_add+0x1c/0x140
[ 4639.348707][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4639.348707][   T73]      addrconf_add_dev+0xe2/0x170
[ 4639.348707][   T73]      inet6_addr_add+0x12f/0xa40
[ 4639.348707][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4639.348707][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4639.348707][   T73]      netlink_rcv_skb+0x130/0x360
[ 4639.348707][   T73]      netlink_unicast+0x449/0x710
[ 4639.348707][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4639.348707][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4639.348707][   T73]      ___sys_sendmsg+0xee/0x170
[ 4639.348707][   T73]      __sys_sendmsg+0xcd/0x170
[ 4639.348707][   T73]      do_syscall_64+0xc6/0x1e0
[ 4639.348707][   T73] 
[ 4639.351082][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4639.351082][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4639.351082][   T73]      ipv6_find_idev+0x102/0x170
[ 4639.351082][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4639.351082][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4639.351082][   T73]      netlink_rcv_skb+0x130/0x360
[ 4639.351082][   T73]      netlink_unicast+0x449/0x710
[ 4639.351082][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4639.351082][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4639.351082][   T73]      ___sys_sendmsg+0xee/0x170
[ 4639.351082][   T73]      __sys_sendmsg+0xcd/0x170
[ 4639.351082][   T73]      do_syscall_64+0xc6/0x1e0
[ 4639.351082][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4639.351082][   T73] 
[ 4639.352990][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4639.352990][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4639.352990][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4639.352990][   T73]      ipv6_find_idev+0x102/0x170
[ 4639.352990][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4639.352990][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4639.352990][   T73]      netlink_rcv_skb+0x130/0x360
[ 4639.352990][   T73]      netlink_unicast+0x449/0x710
[ 4639.352990][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4639.352990][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4639.352990][   T73]      ___sys_sendmsg+0xee/0x170
[ 4639.352990][   T73]      __sys_sendmsg+0xcd/0x170
[ 4639.352990][   T73]      do_syscall_64+0xc6/0x1e0
[ 4639.352990][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4639.352990][   T73] 
[ 4639.355176][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4639.355469][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4639.355469][   T73]      netdev_get_by_index+0x5e/0x80
[ 4639.355469][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4639.355469][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4639.355469][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4639.355469][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4639.355469][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4639.355469][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4639.355469][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4639.355469][   T73]      addrconf_dad_begin+0x310/0x670
[ 4639.355469][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4639.355469][   T73]      process_one_work+0x84d/0x18a0
[ 4639.355469][   T73]      worker_thread+0x587/0xd30
[ 4639.355469][   T73]      kthread+0x28a/0x350
[ 4639.355469][   T73]      ret_from_fork+0x31/0x70
[ 4639.355469][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4639.355469][   T73] 
[ 4639.357849][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4639.357849][   T73]      netdev_get_by_index+0x5e/0x80
[ 4639.357849][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4639.357849][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4639.357849][   T73]      ip6_route_add+0x1c/0x140
[ 4639.357849][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4639.357849][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4639.357849][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4639.357849][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4639.357849][   T73]      netlink_rcv_skb+0x130/0x360
[ 4639.357849][   T73]      netlink_unicast+0x449/0x710
[ 4639.357849][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4639.357849][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4639.357849][   T73]      ___sys_sendmsg+0xee/0x170
[ 4639.357849][   T73]      __sys_sendmsg+0xcd/0x170
[ 4639.357849][   T73]      do_syscall_64+0xc6/0x1e0
[ 4639.357849][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4639.357849][   T73] 
[ 4639.360325][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4639.360325][   T73]      netdev_get_by_index+0x5e/0x80
[ 4639.360325][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4639.360325][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4639.360325][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4639.360325][   T73]      ipv6_add_addr+0x411/0x2000
[ 4639.360325][   T73]      inet6_addr_add+0x30e/0xa40
[ 4639.360325][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4639.360325][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4639.360325][   T73]      netlink_rcv_skb+0x130/0x360
[ 4639.360325][   T73]      netlink_unicast+0x449/0x710
[ 4639.360325][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4639.360325][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4639.360325][   T73]      ___sys_sendmsg+0xee/0x170
[ 4639.360325][   T73]      __sys_sendmsg+0xcd/0x170
[ 4639.360325][   T73]      do_syscall_64+0xc6/0x1e0
[ 4639.360325][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4639.360325][   T73] 
[ 4639.362730][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4639.362730][   T73]      netdev_get_by_index+0x5e/0x80
[ 4639.362730][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4639.362730][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4639.362730][   T73]      ip6_route_add+0x1c/0x140
[ 4639.362730][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4639.362730][   T73]      addrconf_add_dev+0xe2/0x170
[ 4639.362730][   T73]      inet6_addr_add+0x12f/0xa40
[ 4639.362730][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4639.362730][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4639.362730][   T73]      netlink_rcv_skb+0x130/0x360
[ 4639.362730][   T73]      netlink_unicast+0x449/0x710
[ 4639.362730][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4639.362730][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4639.362730][   T73]      ___sys_sendmsg+0xee/0x170
[ 4639.362730][   T73]      __sys_sendmsg+0xcd/0x170
[ 4639.362730][   T73]      do_syscall_64+0xc6/0x1e0
[ 4639.362730][   T73] 
[ 4639.365279][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4639.365279][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4639.365279][   T73]      ipv6_find_idev+0x102/0x170
[ 4639.365279][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4639.365279][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4639.365279][   T73]      netlink_rcv_skb+0x130/0x360
[ 4639.365279][   T73]      netlink_unicast+0x449/0x710
[ 4639.365279][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4639.365279][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4639.365279][   T73]      ___sys_sendmsg+0xee/0x170
[ 4639.365279][   T73]      __sys_sendmsg+0xcd/0x170
[ 4639.365279][   T73]      do_syscall_64+0xc6/0x1e0
[ 4639.365279][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4639.365279][   T73] 
[ 4639.367170][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4639.367170][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4639.367170][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4639.367170][   T73]      ipv6_find_idev+0x102/0x170
[ 4639.367170][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4639.367170][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4639.367170][   T73]      netlink_rcv_skb+0x130/0x360
[ 4639.367170][   T73]      netlink_unicast+0x449/0x710
[ 4639.367170][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4639.367170][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4639.367170][   T73]      ___sys_sendmsg+0xee/0x170
[ 4639.367170][   T73]      __sys_sendmsg+0xcd/0x170
[ 4639.367170][   T73]      do_syscall_64+0xc6/0x1e0
[ 4639.367170][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4639.367170][   T73] 
[ 4649.383693][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4649.384240][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4649.384240][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4649.384240][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4649.384240][   T73]      fib6_nh_init+0xa22/0x1580
[ 4649.384240][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4649.384240][   T73]      ip6_route_add+0x1c/0x140
[ 4649.384240][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4649.384240][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4649.384240][   T73]      netlink_rcv_skb+0x130/0x360
[ 4649.384240][   T73]      netlink_unicast+0x449/0x710
[ 4649.384240][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4649.384240][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4649.384240][   T73]      ___sys_sendmsg+0xee/0x170
[ 4649.384240][   T73]      __sys_sendmsg+0xcd/0x170
[ 4649.384240][   T73]      do_syscall_64+0xc6/0x1e0
[ 4649.384240][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4649.384240][   T73] 
[ 4649.386360][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4649.386360][   T73]      dst_init+0x84/0x4a0
[ 4649.386360][   T73]      dst_alloc+0x97/0x150
[ 4649.386360][   T73]      ip6_dst_alloc+0x23/0x90
[ 4649.386360][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4649.386360][   T73]      ip6_pol_route+0x56f/0x840
[ 4649.386360][   T73]      fib6_rule_lookup+0x456/0x630
[ 4649.386360][   T73]      ip6_route_input+0x59c/0xa50
[ 4649.386360][   T73]      ipv6_rcv+0x397/0x810
[ 4649.386360][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4649.386360][   T73]      process_backlog+0x101/0x620
[ 4649.386360][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4649.386360][   T73]      net_rx_action+0x495/0xbe0
[ 4649.386360][   T73]      __do_softirq+0x1b5/0x7f6
[ 4649.386360][   T73] 
[ 4649.388173][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4649.388173][   T73]      netdev_get_by_index+0x5e/0x80
[ 4649.388173][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4649.388173][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4649.388173][   T73]      ip6_route_add+0x1c/0x140
[ 4649.388173][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4649.388173][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4649.388173][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4649.388173][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4649.388173][   T73]      netlink_rcv_skb+0x130/0x360
[ 4649.388173][   T73]      netlink_unicast+0x449/0x710
[ 4649.388173][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4649.388173][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4649.388173][   T73]      ___sys_sendmsg+0xee/0x170
[ 4649.388173][   T73]      __sys_sendmsg+0xcd/0x170
[ 4649.388173][   T73]      do_syscall_64+0xc6/0x1e0
[ 4649.388173][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4649.388173][   T73] 
[ 4649.390394][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4649.390394][   T73]      netdev_get_by_index+0x5e/0x80
[ 4649.390394][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4649.390394][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4649.390394][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4649.390394][   T73]      ipv6_add_addr+0x411/0x2000
[ 4649.390394][   T73]      inet6_addr_add+0x30e/0xa40
[ 4649.390394][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4649.390394][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4649.390394][   T73]      netlink_rcv_skb+0x130/0x360
[ 4649.390394][   T73]      netlink_unicast+0x449/0x710
[ 4649.390394][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4649.390394][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4649.390394][   T73]      ___sys_sendmsg+0xee/0x170
[ 4649.390394][   T73]      __sys_sendmsg+0xcd/0x170
[ 4649.390394][   T73]      do_syscall_64+0xc6/0x1e0
[ 4649.390394][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4649.390394][   T73] 
[ 4649.392621][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4649.392621][   T73]      netdev_get_by_index+0x5e/0x80
[ 4649.392621][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4649.392621][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4649.392621][   T73]      ip6_route_add+0x1c/0x140
[ 4649.392621][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4649.392621][   T73]      addrconf_add_dev+0xe2/0x170
[ 4649.392621][   T73]      inet6_addr_add+0x12f/0xa40
[ 4649.392621][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4649.392621][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4649.392621][   T73]      netlink_rcv_skb+0x130/0x360
[ 4649.392621][   T73]      netlink_unicast+0x449/0x710
[ 4649.392621][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4649.392621][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4649.392621][   T73]      ___sys_sendmsg+0xee/0x170
[ 4649.392621][   T73]      __sys_sendmsg+0xcd/0x170
[ 4649.392621][   T73]      do_syscall_64+0xc6/0x1e0
[ 4649.392621][   T73] 
[ 4649.394870][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4649.394870][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4649.394870][   T73]      ipv6_find_idev+0x102/0x170
[ 4649.394870][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4649.394870][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4649.394870][   T73]      netlink_rcv_skb+0x130/0x360
[ 4649.394870][   T73]      netlink_unicast+0x449/0x710
[ 4649.394870][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4649.394870][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4649.394870][   T73]      ___sys_sendmsg+0xee/0x170
[ 4649.394870][   T73]      __sys_sendmsg+0xcd/0x170
[ 4649.394870][   T73]      do_syscall_64+0xc6/0x1e0
[ 4649.394870][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4649.394870][   T73] 
[ 4649.396580][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4649.396580][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4649.396580][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4649.396580][   T73]      ipv6_find_idev+0x102/0x170
[ 4649.396580][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4649.396580][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4649.396580][   T73]      netlink_rcv_skb+0x130/0x360
[ 4649.396580][   T73]      netlink_unicast+0x449/0x710
[ 4649.396580][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4649.396580][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4649.396580][   T73]      ___sys_sendmsg+0xee/0x170
[ 4649.396580][   T73]      __sys_sendmsg+0xcd/0x170
[ 4649.396580][   T73]      do_syscall_64+0xc6/0x1e0
[ 4649.396580][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4649.396580][   T73] 
[ 4649.398461][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4649.398784][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4649.398784][   T73]      netdev_get_by_index+0x5e/0x80
[ 4649.398784][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4649.398784][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4649.398784][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4649.398784][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4649.398784][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4649.398784][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4649.398784][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4649.398784][   T73]      addrconf_dad_begin+0x310/0x670
[ 4649.398784][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4649.398784][   T73]      process_one_work+0x84d/0x18a0
[ 4649.398784][   T73]      worker_thread+0x587/0xd30
[ 4649.398784][   T73]      kthread+0x28a/0x350
[ 4649.398784][   T73]      ret_from_fork+0x31/0x70
[ 4649.398784][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4649.398784][   T73] 
[ 4649.400910][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4649.400910][   T73]      netdev_get_by_index+0x5e/0x80
[ 4649.400910][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4649.400910][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4649.400910][   T73]      ip6_route_add+0x1c/0x140
[ 4649.400910][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4649.400910][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4649.400910][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4649.400910][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4649.400910][   T73]      netlink_rcv_skb+0x130/0x360
[ 4649.400910][   T73]      netlink_unicast+0x449/0x710
[ 4649.400910][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4649.400910][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4649.400910][   T73]      ___sys_sendmsg+0xee/0x170
[ 4649.400910][   T73]      __sys_sendmsg+0xcd/0x170
[ 4649.400910][   T73]      do_syscall_64+0xc6/0x1e0
[ 4649.400910][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4649.400910][   T73] 
[ 4649.403177][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4649.403177][   T73]      netdev_get_by_index+0x5e/0x80
[ 4649.403177][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4649.403177][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4649.403177][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4649.403177][   T73]      ipv6_add_addr+0x411/0x2000
[ 4649.403177][   T73]      inet6_addr_add+0x30e/0xa40
[ 4649.403177][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4649.403177][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4649.403177][   T73]      netlink_rcv_skb+0x130/0x360
[ 4649.403177][   T73]      netlink_unicast+0x449/0x710
[ 4649.403177][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4649.403177][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4649.403177][   T73]      ___sys_sendmsg+0xee/0x170
[ 4649.403177][   T73]      __sys_sendmsg+0xcd/0x170
[ 4649.403177][   T73]      do_syscall_64+0xc6/0x1e0
[ 4649.403177][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4649.403177][   T73] 
[ 4649.405404][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4649.405404][   T73]      netdev_get_by_index+0x5e/0x80
[ 4649.405404][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4649.405404][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4649.405404][   T73]      ip6_route_add+0x1c/0x140
[ 4649.405404][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4649.405404][   T73]      addrconf_add_dev+0xe2/0x170
[ 4649.405404][   T73]      inet6_addr_add+0x12f/0xa40
[ 4649.405404][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4649.405404][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4649.405404][   T73]      netlink_rcv_skb+0x130/0x360
[ 4649.405404][   T73]      netlink_unicast+0x449/0x710
[ 4649.405404][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4649.405404][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4649.405404][   T73]      ___sys_sendmsg+0xee/0x170
[ 4649.405404][   T73]      __sys_sendmsg+0xcd/0x170
[ 4649.405404][   T73]      do_syscall_64+0xc6/0x1e0
[ 4649.405404][   T73] 
[ 4649.407570][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4649.407570][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4649.407570][   T73]      ipv6_find_idev+0x102/0x170
[ 4649.407570][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4649.407570][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4649.407570][   T73]      netlink_rcv_skb+0x130/0x360
[ 4649.407570][   T73]      netlink_unicast+0x449/0x710
[ 4649.407570][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4649.407570][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4649.407570][   T73]      ___sys_sendmsg+0xee/0x170
[ 4649.407570][   T73]      __sys_sendmsg+0xcd/0x170
[ 4649.407570][   T73]      do_syscall_64+0xc6/0x1e0
[ 4649.407570][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4649.407570][   T73] 
[ 4649.409272][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4649.409272][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4649.409272][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4649.409272][   T73]      ipv6_find_idev+0x102/0x170
[ 4649.409272][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4649.409272][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4649.409272][   T73]      netlink_rcv_skb+0x130/0x360
[ 4649.409272][   T73]      netlink_unicast+0x449/0x710
[ 4649.409272][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4649.409272][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4649.409272][   T73]      ___sys_sendmsg+0xee/0x170
[ 4649.409272][   T73]      __sys_sendmsg+0xcd/0x170
[ 4649.409272][   T73]      do_syscall_64+0xc6/0x1e0
[ 4649.409272][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4649.409272][   T73] 
[ 4649.411155][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4649.411456][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4649.411456][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4649.411456][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4649.411456][   T73]      fib6_nh_init+0xa22/0x1580
[ 4649.411456][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4649.411456][   T73]      ip6_route_add+0x1c/0x140
[ 4649.411456][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4649.411456][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4649.411456][   T73]      netlink_rcv_skb+0x130/0x360
[ 4649.411456][   T73]      netlink_unicast+0x449/0x710
[ 4649.411456][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4649.411456][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4649.411456][   T73]      ___sys_sendmsg+0xee/0x170
[ 4649.411456][   T73]      __sys_sendmsg+0xcd/0x170
[ 4649.411456][   T73]      do_syscall_64+0xc6/0x1e0
[ 4649.411456][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4649.411456][   T73] 
[ 4649.413636][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4649.413636][   T73]      dst_init+0x84/0x4a0
[ 4649.413636][   T73]      dst_alloc+0x97/0x150
[ 4649.413636][   T73]      ip6_dst_alloc+0x23/0x90
[ 4649.413636][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4649.413636][   T73]      ip6_pol_route+0x56f/0x840
[ 4649.413636][   T73]      fib6_rule_lookup+0x456/0x630
[ 4649.413636][   T73]      ip6_route_input+0x59c/0xa50
[ 4649.413636][   T73]      ipv6_rcv+0x397/0x810
[ 4649.413636][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4649.413636][   T73]      process_backlog+0x101/0x620
[ 4649.413636][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4649.413636][   T73]      net_rx_action+0x495/0xbe0
[ 4649.413636][   T73]      __do_softirq+0x1b5/0x7f6
[ 4649.413636][   T73] 
[ 4649.415509][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4649.415509][   T73]      netdev_get_by_index+0x5e/0x80
[ 4649.415509][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4649.415509][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4649.415509][   T73]      ip6_route_add+0x1c/0x140
[ 4649.415509][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4649.415509][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4649.415509][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4649.415509][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4649.415509][   T73]      netlink_rcv_skb+0x130/0x360
[ 4649.415509][   T73]      netlink_unicast+0x449/0x710
[ 4649.415509][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4649.415509][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4649.415509][   T73]      ___sys_sendmsg+0xee/0x170
[ 4649.415509][   T73]      __sys_sendmsg+0xcd/0x170
[ 4649.415509][   T73]      do_syscall_64+0xc6/0x1e0
[ 4649.415509][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4649.415509][   T73] 
[ 4649.417849][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4649.417849][   T73]      netdev_get_by_index+0x5e/0x80
[ 4649.417849][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4649.417849][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4649.417849][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4649.417849][   T73]      ipv6_add_addr+0x411/0x2000
[ 4649.417849][   T73]      inet6_addr_add+0x30e/0xa40
[ 4649.417849][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4649.417849][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4649.417849][   T73]      netlink_rcv_skb+0x130/0x360
[ 4649.417849][   T73]      netlink_unicast+0x449/0x710
[ 4649.417849][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4649.417849][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4649.417849][   T73]      ___sys_sendmsg+0xee/0x170
[ 4649.417849][   T73]      __sys_sendmsg+0xcd/0x170
[ 4649.417849][   T73]      do_syscall_64+0xc6/0x1e0
[ 4649.417849][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4649.417849][   T73] 
[ 4649.420117][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4649.420117][   T73]      netdev_get_by_index+0x5e/0x80
[ 4649.420117][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4649.420117][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4649.420117][   T73]      ip6_route_add+0x1c/0x140
[ 4649.420117][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4649.420117][   T73]      addrconf_add_dev+0xe2/0x170
[ 4649.420117][   T73]      inet6_addr_add+0x12f/0xa40
[ 4649.420117][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4649.420117][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4649.420117][   T73]      netlink_rcv_skb+0x130/0x360
[ 4649.420117][   T73]      netlink_unicast+0x449/0x710
[ 4649.420117][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4649.420117][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4649.420117][   T73]      ___sys_sendmsg+0xee/0x170
[ 4649.420117][   T73]      __sys_sendmsg+0xcd/0x170
[ 4649.420117][   T73]      do_syscall_64+0xc6/0x1e0
[ 4649.420117][   T73] 
[ 4649.422372][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4649.422372][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4649.422372][   T73]      ipv6_find_idev+0x102/0x170
[ 4649.422372][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4649.422372][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4649.422372][   T73]      netlink_rcv_skb+0x130/0x360
[ 4649.422372][   T73]      netlink_unicast+0x449/0x710
[ 4649.422372][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4649.422372][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4649.422372][   T73]      ___sys_sendmsg+0xee/0x170
[ 4649.422372][   T73]      __sys_sendmsg+0xcd/0x170
[ 4649.422372][   T73]      do_syscall_64+0xc6/0x1e0
[ 4649.422372][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4649.422372][   T73] 
[ 4649.424152][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4649.424152][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4649.424152][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4649.424152][   T73]      ipv6_find_idev+0x102/0x170
[ 4649.424152][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4649.424152][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4649.424152][   T73]      netlink_rcv_skb+0x130/0x360
[ 4649.424152][   T73]      netlink_unicast+0x449/0x710
[ 4649.424152][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4649.424152][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4649.424152][   T73]      ___sys_sendmsg+0xee/0x170
[ 4649.424152][   T73]      __sys_sendmsg+0xcd/0x170
[ 4649.424152][   T73]      do_syscall_64+0xc6/0x1e0
[ 4649.424152][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4649.424152][   T73] 
[ 4649.426073][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4649.426369][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4649.426369][   T73]      netdev_get_by_index+0x5e/0x80
[ 4649.426369][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4649.426369][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4649.426369][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4649.426369][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4649.426369][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4649.426369][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4649.426369][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4649.426369][   T73]      addrconf_dad_begin+0x310/0x670
[ 4649.426369][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4649.426369][   T73]      process_one_work+0x84d/0x18a0
[ 4649.426369][   T73]      worker_thread+0x587/0xd30
[ 4649.426369][   T73]      kthread+0x28a/0x350
[ 4649.426369][   T73]      ret_from_fork+0x31/0x70
[ 4649.426369][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4649.426369][   T73] 
[ 4649.428632][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4649.428632][   T73]      netdev_get_by_index+0x5e/0x80
[ 4649.428632][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4649.428632][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4649.428632][   T73]      ip6_route_add+0x1c/0x140
[ 4649.428632][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4649.428632][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4649.428632][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4649.428632][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4649.428632][   T73]      netlink_rcv_skb+0x130/0x360
[ 4649.428632][   T73]      netlink_unicast+0x449/0x710
[ 4649.428632][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4649.428632][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4649.428632][   T73]      ___sys_sendmsg+0xee/0x170
[ 4649.428632][   T73]      __sys_sendmsg+0xcd/0x170
[ 4649.428632][   T73]      do_syscall_64+0xc6/0x1e0
[ 4649.428632][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4649.428632][   T73] 
[ 4649.430900][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4649.430900][   T73]      netdev_get_by_index+0x5e/0x80
[ 4649.430900][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4649.430900][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4649.430900][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4649.430900][   T73]      ipv6_add_addr+0x411/0x2000
[ 4649.430900][   T73]      inet6_addr_add+0x30e/0xa40
[ 4649.430900][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4649.430900][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4649.430900][   T73]      netlink_rcv_skb+0x130/0x360
[ 4649.430900][   T73]      netlink_unicast+0x449/0x710
[ 4649.430900][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4649.430900][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4649.430900][   T73]      ___sys_sendmsg+0xee/0x170
[ 4649.430900][   T73]      __sys_sendmsg+0xcd/0x170
[ 4649.430900][   T73]      do_syscall_64+0xc6/0x1e0
[ 4649.430900][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4649.430900][   T73] 
[ 4649.433218][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4649.433218][   T73]      netdev_get_by_index+0x5e/0x80
[ 4649.433218][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4649.433218][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4649.433218][   T73]      ip6_route_add+0x1c/0x140
[ 4649.433218][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4649.433218][   T73]      addrconf_add_dev+0xe2/0x170
[ 4649.433218][   T73]      inet6_addr_add+0x12f/0xa40
[ 4649.433218][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4649.433218][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4649.433218][   T73]      netlink_rcv_skb+0x130/0x360
[ 4649.433218][   T73]      netlink_unicast+0x449/0x710
[ 4649.433218][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4649.433218][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4649.433218][   T73]      ___sys_sendmsg+0xee/0x170
[ 4649.433218][   T73]      __sys_sendmsg+0xcd/0x170
[ 4649.433218][   T73]      do_syscall_64+0xc6/0x1e0
[ 4649.433218][   T73] 
[ 4649.435532][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4649.435532][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4649.435532][   T73]      ipv6_find_idev+0x102/0x170
[ 4649.435532][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4649.435532][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4649.435532][   T73]      netlink_rcv_skb+0x130/0x360
[ 4649.435532][   T73]      netlink_unicast+0x449/0x710
[ 4649.435532][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4649.435532][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4649.435532][   T73]      ___sys_sendmsg+0xee/0x170
[ 4649.435532][   T73]      __sys_sendmsg+0xcd/0x170
[ 4649.435532][   T73]      do_syscall_64+0xc6/0x1e0
[ 4649.435532][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4649.435532][   T73] 
[ 4649.437317][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4649.437317][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4649.437317][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4649.437317][   T73]      ipv6_find_idev+0x102/0x170
[ 4649.437317][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4649.437317][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4649.437317][   T73]      netlink_rcv_skb+0x130/0x360
[ 4649.437317][   T73]      netlink_unicast+0x449/0x710
[ 4649.437317][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4649.437317][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4649.437317][   T73]      ___sys_sendmsg+0xee/0x170
[ 4649.437317][   T73]      __sys_sendmsg+0xcd/0x170
[ 4649.437317][   T73]      do_syscall_64+0xc6/0x1e0
[ 4649.437317][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4649.437317][   T73] 
[ 4659.623794][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4659.624272][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4659.624272][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4659.624272][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4659.624272][   T73]      fib6_nh_init+0xa22/0x1580
[ 4659.624272][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4659.624272][   T73]      ip6_route_add+0x1c/0x140
[ 4659.624272][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4659.624272][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4659.624272][   T73]      netlink_rcv_skb+0x130/0x360
[ 4659.624272][   T73]      netlink_unicast+0x449/0x710
[ 4659.624272][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4659.624272][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4659.624272][   T73]      ___sys_sendmsg+0xee/0x170
[ 4659.624272][   T73]      __sys_sendmsg+0xcd/0x170
[ 4659.624272][   T73]      do_syscall_64+0xc6/0x1e0
[ 4659.624272][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4659.624272][   T73] 
[ 4659.626247][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4659.626247][   T73]      dst_init+0x84/0x4a0
[ 4659.626247][   T73]      dst_alloc+0x97/0x150
[ 4659.626247][   T73]      ip6_dst_alloc+0x23/0x90
[ 4659.626247][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4659.626247][   T73]      ip6_pol_route+0x56f/0x840
[ 4659.626247][   T73]      fib6_rule_lookup+0x456/0x630
[ 4659.626247][   T73]      ip6_route_input+0x59c/0xa50
[ 4659.626247][   T73]      ipv6_rcv+0x397/0x810
[ 4659.626247][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4659.626247][   T73]      process_backlog+0x101/0x620
[ 4659.626247][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4659.626247][   T73]      net_rx_action+0x495/0xbe0
[ 4659.626247][   T73]      __do_softirq+0x1b5/0x7f6
[ 4659.626247][   T73] 
[ 4659.627928][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4659.627928][   T73]      netdev_get_by_index+0x5e/0x80
[ 4659.627928][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4659.627928][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4659.627928][   T73]      ip6_route_add+0x1c/0x140
[ 4659.627928][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4659.627928][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4659.627928][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4659.627928][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4659.627928][   T73]      netlink_rcv_skb+0x130/0x360
[ 4659.627928][   T73]      netlink_unicast+0x449/0x710
[ 4659.627928][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4659.627928][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4659.627928][   T73]      ___sys_sendmsg+0xee/0x170
[ 4659.627928][   T73]      __sys_sendmsg+0xcd/0x170
[ 4659.627928][   T73]      do_syscall_64+0xc6/0x1e0
[ 4659.627928][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4659.627928][   T73] 
[ 4659.629957][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4659.629957][   T73]      netdev_get_by_index+0x5e/0x80
[ 4659.629957][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4659.629957][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4659.629957][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4659.629957][   T73]      ipv6_add_addr+0x411/0x2000
[ 4659.629957][   T73]      inet6_addr_add+0x30e/0xa40
[ 4659.629957][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4659.629957][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4659.629957][   T73]      netlink_rcv_skb+0x130/0x360
[ 4659.629957][   T73]      netlink_unicast+0x449/0x710
[ 4659.629957][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4659.629957][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4659.629957][   T73]      ___sys_sendmsg+0xee/0x170
[ 4659.629957][   T73]      __sys_sendmsg+0xcd/0x170
[ 4659.629957][   T73]      do_syscall_64+0xc6/0x1e0
[ 4659.629957][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4659.629957][   T73] 
[ 4659.631984][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4659.631984][   T73]      netdev_get_by_index+0x5e/0x80
[ 4659.631984][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4659.631984][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4659.631984][   T73]      ip6_route_add+0x1c/0x140
[ 4659.631984][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4659.631984][   T73]      addrconf_add_dev+0xe2/0x170
[ 4659.631984][   T73]      inet6_addr_add+0x12f/0xa40
[ 4659.631984][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4659.631984][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4659.631984][   T73]      netlink_rcv_skb+0x130/0x360
[ 4659.631984][   T73]      netlink_unicast+0x449/0x710
[ 4659.631984][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4659.631984][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4659.631984][   T73]      ___sys_sendmsg+0xee/0x170
[ 4659.631984][   T73]      __sys_sendmsg+0xcd/0x170
[ 4659.631984][   T73]      do_syscall_64+0xc6/0x1e0
[ 4659.631984][   T73] 
[ 4659.633978][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4659.633978][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4659.633978][   T73]      ipv6_find_idev+0x102/0x170
[ 4659.633978][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4659.633978][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4659.633978][   T73]      netlink_rcv_skb+0x130/0x360
[ 4659.633978][   T73]      netlink_unicast+0x449/0x710
[ 4659.633978][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4659.633978][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4659.633978][   T73]      ___sys_sendmsg+0xee/0x170
[ 4659.633978][   T73]      __sys_sendmsg+0xcd/0x170
[ 4659.633978][   T73]      do_syscall_64+0xc6/0x1e0
[ 4659.633978][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4659.633978][   T73] 
[ 4659.635531][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4659.635531][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4659.635531][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4659.635531][   T73]      ipv6_find_idev+0x102/0x170
[ 4659.635531][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4659.635531][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4659.635531][   T73]      netlink_rcv_skb+0x130/0x360
[ 4659.635531][   T73]      netlink_unicast+0x449/0x710
[ 4659.635531][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4659.635531][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4659.635531][   T73]      ___sys_sendmsg+0xee/0x170
[ 4659.635531][   T73]      __sys_sendmsg+0xcd/0x170
[ 4659.635531][   T73]      do_syscall_64+0xc6/0x1e0
[ 4659.635531][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4659.635531][   T73] 
[ 4659.637262][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4659.637556][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4659.637556][   T73]      netdev_get_by_index+0x5e/0x80
[ 4659.637556][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4659.637556][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4659.637556][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4659.637556][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4659.637556][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4659.637556][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4659.637556][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4659.637556][   T73]      addrconf_dad_begin+0x310/0x670
[ 4659.637556][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4659.637556][   T73]      process_one_work+0x84d/0x18a0
[ 4659.637556][   T73]      worker_thread+0x587/0xd30
[ 4659.637556][   T73]      kthread+0x28a/0x350
[ 4659.637556][   T73]      ret_from_fork+0x31/0x70
[ 4659.637556][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4659.637556][   T73] 
[ 4659.639499][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4659.639499][   T73]      netdev_get_by_index+0x5e/0x80
[ 4659.639499][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4659.639499][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4659.639499][   T73]      ip6_route_add+0x1c/0x140
[ 4659.639499][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4659.639499][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4659.639499][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4659.639499][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4659.639499][   T73]      netlink_rcv_skb+0x130/0x360
[ 4659.639499][   T73]      netlink_unicast+0x449/0x710
[ 4659.639499][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4659.639499][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4659.639499][   T73]      ___sys_sendmsg+0xee/0x170
[ 4659.639499][   T73]      __sys_sendmsg+0xcd/0x170
[ 4659.639499][   T73]      do_syscall_64+0xc6/0x1e0
[ 4659.639499][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4659.639499][   T73] 
[ 4659.641515][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4659.641515][   T73]      netdev_get_by_index+0x5e/0x80
[ 4659.641515][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4659.641515][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4659.641515][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4659.641515][   T73]      ipv6_add_addr+0x411/0x2000
[ 4659.641515][   T73]      inet6_addr_add+0x30e/0xa40
[ 4659.641515][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4659.641515][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4659.641515][   T73]      netlink_rcv_skb+0x130/0x360
[ 4659.641515][   T73]      netlink_unicast+0x449/0x710
[ 4659.641515][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4659.641515][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4659.641515][   T73]      ___sys_sendmsg+0xee/0x170
[ 4659.641515][   T73]      __sys_sendmsg+0xcd/0x170
[ 4659.641515][   T73]      do_syscall_64+0xc6/0x1e0
[ 4659.641515][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4659.641515][   T73] 
[ 4659.643544][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4659.643544][   T73]      netdev_get_by_index+0x5e/0x80
[ 4659.643544][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4659.643544][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4659.643544][   T73]      ip6_route_add+0x1c/0x140
[ 4659.643544][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4659.643544][   T73]      addrconf_add_dev+0xe2/0x170
[ 4659.643544][   T73]      inet6_addr_add+0x12f/0xa40
[ 4659.643544][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4659.643544][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4659.643544][   T73]      netlink_rcv_skb+0x130/0x360
[ 4659.643544][   T73]      netlink_unicast+0x449/0x710
[ 4659.643544][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4659.643544][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4659.643544][   T73]      ___sys_sendmsg+0xee/0x170
[ 4659.643544][   T73]      __sys_sendmsg+0xcd/0x170
[ 4659.643544][   T73]      do_syscall_64+0xc6/0x1e0
[ 4659.643544][   T73] 
[ 4659.645539][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4659.645539][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4659.645539][   T73]      ipv6_find_idev+0x102/0x170
[ 4659.645539][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4659.645539][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4659.645539][   T73]      netlink_rcv_skb+0x130/0x360
[ 4659.645539][   T73]      netlink_unicast+0x449/0x710
[ 4659.645539][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4659.645539][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4659.645539][   T73]      ___sys_sendmsg+0xee/0x170
[ 4659.645539][   T73]      __sys_sendmsg+0xcd/0x170
[ 4659.645539][   T73]      do_syscall_64+0xc6/0x1e0
[ 4659.645539][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4659.645539][   T73] 
[ 4659.647102][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4659.647102][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4659.647102][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4659.647102][   T73]      ipv6_find_idev+0x102/0x170
[ 4659.647102][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4659.647102][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4659.647102][   T73]      netlink_rcv_skb+0x130/0x360
[ 4659.647102][   T73]      netlink_unicast+0x449/0x710
[ 4659.647102][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4659.647102][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4659.647102][   T73]      ___sys_sendmsg+0xee/0x170
[ 4659.647102][   T73]      __sys_sendmsg+0xcd/0x170
[ 4659.647102][   T73]      do_syscall_64+0xc6/0x1e0
[ 4659.647102][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4659.647102][   T73] 
[ 4659.648798][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4659.649076][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4659.649076][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4659.649076][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4659.649076][   T73]      fib6_nh_init+0xa22/0x1580
[ 4659.649076][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4659.649076][   T73]      ip6_route_add+0x1c/0x140
[ 4659.649076][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4659.649076][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4659.649076][   T73]      netlink_rcv_skb+0x130/0x360
[ 4659.649076][   T73]      netlink_unicast+0x449/0x710
[ 4659.649076][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4659.649076][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4659.649076][   T73]      ___sys_sendmsg+0xee/0x170
[ 4659.649076][   T73]      __sys_sendmsg+0xcd/0x170
[ 4659.649076][   T73]      do_syscall_64+0xc6/0x1e0
[ 4659.649076][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4659.649076][   T73] 
[ 4659.651154][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4659.651154][   T73]      dst_init+0x84/0x4a0
[ 4659.651154][   T73]      dst_alloc+0x97/0x150
[ 4659.651154][   T73]      ip6_dst_alloc+0x23/0x90
[ 4659.651154][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4659.651154][   T73]      ip6_pol_route+0x56f/0x840
[ 4659.651154][   T73]      fib6_rule_lookup+0x456/0x630
[ 4659.651154][   T73]      ip6_route_input+0x59c/0xa50
[ 4659.651154][   T73]      ipv6_rcv+0x397/0x810
[ 4659.651154][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4659.651154][   T73]      process_backlog+0x101/0x620
[ 4659.651154][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4659.651154][   T73]      net_rx_action+0x495/0xbe0
[ 4659.651154][   T73]      __do_softirq+0x1b5/0x7f6
[ 4659.651154][   T73] 
[ 4659.653046][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4659.653046][   T73]      netdev_get_by_index+0x5e/0x80
[ 4659.653046][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4659.653046][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4659.653046][   T73]      ip6_route_add+0x1c/0x140
[ 4659.653046][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4659.653046][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4659.653046][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4659.653046][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4659.653046][   T73]      netlink_rcv_skb+0x130/0x360
[ 4659.653046][   T73]      netlink_unicast+0x449/0x710
[ 4659.653046][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4659.653046][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4659.653046][   T73]      ___sys_sendmsg+0xee/0x170
[ 4659.653046][   T73]      __sys_sendmsg+0xcd/0x170
[ 4659.653046][   T73]      do_syscall_64+0xc6/0x1e0
[ 4659.653046][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4659.653046][   T73] 
[ 4659.655329][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4659.655329][   T73]      netdev_get_by_index+0x5e/0x80
[ 4659.655329][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4659.655329][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4659.655329][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4659.655329][   T73]      ipv6_add_addr+0x411/0x2000
[ 4659.655329][   T73]      inet6_addr_add+0x30e/0xa40
[ 4659.655329][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4659.655329][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4659.655329][   T73]      netlink_rcv_skb+0x130/0x360
[ 4659.655329][   T73]      netlink_unicast+0x449/0x710
[ 4659.655329][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4659.655329][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4659.655329][   T73]      ___sys_sendmsg+0xee/0x170
[ 4659.655329][   T73]      __sys_sendmsg+0xcd/0x170
[ 4659.655329][   T73]      do_syscall_64+0xc6/0x1e0
[ 4659.655329][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4659.655329][   T73] 
[ 4659.657546][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4659.657546][   T73]      netdev_get_by_index+0x5e/0x80
[ 4659.657546][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4659.657546][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4659.657546][   T73]      ip6_route_add+0x1c/0x140
[ 4659.657546][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4659.657546][   T73]      addrconf_add_dev+0xe2/0x170
[ 4659.657546][   T73]      inet6_addr_add+0x12f/0xa40
[ 4659.657546][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4659.657546][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4659.657546][   T73]      netlink_rcv_skb+0x130/0x360
[ 4659.657546][   T73]      netlink_unicast+0x449/0x710
[ 4659.657546][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4659.657546][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4659.657546][   T73]      ___sys_sendmsg+0xee/0x170
[ 4659.657546][   T73]      __sys_sendmsg+0xcd/0x170
[ 4659.657546][   T73]      do_syscall_64+0xc6/0x1e0
[ 4659.657546][   T73] 
[ 4659.659778][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4659.659778][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4659.659778][   T73]      ipv6_find_idev+0x102/0x170
[ 4659.659778][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4659.659778][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4659.659778][   T73]      netlink_rcv_skb+0x130/0x360
[ 4659.659778][   T73]      netlink_unicast+0x449/0x710
[ 4659.659778][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4659.659778][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4659.659778][   T73]      ___sys_sendmsg+0xee/0x170
[ 4659.659778][   T73]      __sys_sendmsg+0xcd/0x170
[ 4659.659778][   T73]      do_syscall_64+0xc6/0x1e0
[ 4659.659778][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4659.659778][   T73] 
[ 4659.661510][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4659.661510][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4659.661510][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4659.661510][   T73]      ipv6_find_idev+0x102/0x170
[ 4659.661510][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4659.661510][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4659.661510][   T73]      netlink_rcv_skb+0x130/0x360
[ 4659.661510][   T73]      netlink_unicast+0x449/0x710
[ 4659.661510][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4659.661510][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4659.661510][   T73]      ___sys_sendmsg+0xee/0x170
[ 4659.661510][   T73]      __sys_sendmsg+0xcd/0x170
[ 4659.661510][   T73]      do_syscall_64+0xc6/0x1e0
[ 4659.661510][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4659.661510][   T73] 
[ 4659.663474][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4659.663822][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4659.663822][   T73]      netdev_get_by_index+0x5e/0x80
[ 4659.663822][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4659.663822][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4659.663822][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4659.663822][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4659.663822][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4659.663822][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4659.663822][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4659.663822][   T73]      addrconf_dad_begin+0x310/0x670
[ 4659.663822][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4659.663822][   T73]      process_one_work+0x84d/0x18a0
[ 4659.663822][   T73]      worker_thread+0x587/0xd30
[ 4659.663822][   T73]      kthread+0x28a/0x350
[ 4659.663822][   T73]      ret_from_fork+0x31/0x70
[ 4659.663822][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4659.663822][   T73] 
[ 4659.665920][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4659.665920][   T73]      netdev_get_by_index+0x5e/0x80
[ 4659.665920][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4659.665920][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4659.665920][   T73]      ip6_route_add+0x1c/0x140
[ 4659.665920][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4659.665920][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4659.665920][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4659.665920][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4659.665920][   T73]      netlink_rcv_skb+0x130/0x360
[ 4659.665920][   T73]      netlink_unicast+0x449/0x710
[ 4659.665920][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4659.665920][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4659.665920][   T73]      ___sys_sendmsg+0xee/0x170
[ 4659.665920][   T73]      __sys_sendmsg+0xcd/0x170
[ 4659.665920][   T73]      do_syscall_64+0xc6/0x1e0
[ 4659.665920][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4659.665920][   T73] 
[ 4659.668176][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4659.668176][   T73]      netdev_get_by_index+0x5e/0x80
[ 4659.668176][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4659.668176][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4659.668176][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4659.668176][   T73]      ipv6_add_addr+0x411/0x2000
[ 4659.668176][   T73]      inet6_addr_add+0x30e/0xa40
[ 4659.668176][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4659.668176][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4659.668176][   T73]      netlink_rcv_skb+0x130/0x360
[ 4659.668176][   T73]      netlink_unicast+0x449/0x710
[ 4659.668176][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4659.668176][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4659.668176][   T73]      ___sys_sendmsg+0xee/0x170
[ 4659.668176][   T73]      __sys_sendmsg+0xcd/0x170
[ 4659.668176][   T73]      do_syscall_64+0xc6/0x1e0
[ 4659.668176][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4659.668176][   T73] 
[ 4659.670426][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4659.670426][   T73]      netdev_get_by_index+0x5e/0x80
[ 4659.670426][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4659.670426][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4659.670426][   T73]      ip6_route_add+0x1c/0x140
[ 4659.670426][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4659.670426][   T73]      addrconf_add_dev+0xe2/0x170
[ 4659.670426][   T73]      inet6_addr_add+0x12f/0xa40
[ 4659.670426][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4659.670426][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4659.670426][   T73]      netlink_rcv_skb+0x130/0x360
[ 4659.670426][   T73]      netlink_unicast+0x449/0x710
[ 4659.670426][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4659.670426][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4659.670426][   T73]      ___sys_sendmsg+0xee/0x170
[ 4659.670426][   T73]      __sys_sendmsg+0xcd/0x170
[ 4659.670426][   T73]      do_syscall_64+0xc6/0x1e0
[ 4659.670426][   T73] 
[ 4659.672710][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4659.672710][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4659.672710][   T73]      ipv6_find_idev+0x102/0x170
[ 4659.672710][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4659.672710][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4659.672710][   T73]      netlink_rcv_skb+0x130/0x360
[ 4659.672710][   T73]      netlink_unicast+0x449/0x710
[ 4659.672710][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4659.672710][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4659.672710][   T73]      ___sys_sendmsg+0xee/0x170
[ 4659.672710][   T73]      __sys_sendmsg+0xcd/0x170
[ 4659.672710][   T73]      do_syscall_64+0xc6/0x1e0
[ 4659.672710][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4659.672710][   T73] 
[ 4659.674459][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4659.674459][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4659.674459][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4659.674459][   T73]      ipv6_find_idev+0x102/0x170
[ 4659.674459][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4659.674459][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4659.674459][   T73]      netlink_rcv_skb+0x130/0x360
[ 4659.674459][   T73]      netlink_unicast+0x449/0x710
[ 4659.674459][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4659.674459][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4659.674459][   T73]      ___sys_sendmsg+0xee/0x170
[ 4659.674459][   T73]      __sys_sendmsg+0xcd/0x170
[ 4659.674459][   T73]      do_syscall_64+0xc6/0x1e0
[ 4659.674459][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4659.674459][   T73] 
[ 4669.911674][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4669.912129][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4669.912129][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4669.912129][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4669.912129][   T73]      fib6_nh_init+0xa22/0x1580
[ 4669.912129][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4669.912129][   T73]      ip6_route_add+0x1c/0x140
[ 4669.912129][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4669.912129][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4669.912129][   T73]      netlink_rcv_skb+0x130/0x360
[ 4669.912129][   T73]      netlink_unicast+0x449/0x710
[ 4669.912129][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4669.912129][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4669.912129][   T73]      ___sys_sendmsg+0xee/0x170
[ 4669.912129][   T73]      __sys_sendmsg+0xcd/0x170
[ 4669.912129][   T73]      do_syscall_64+0xc6/0x1e0
[ 4669.912129][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4669.912129][   T73] 
[ 4669.914063][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4669.914063][   T73]      dst_init+0x84/0x4a0
[ 4669.914063][   T73]      dst_alloc+0x97/0x150
[ 4669.914063][   T73]      ip6_dst_alloc+0x23/0x90
[ 4669.914063][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4669.914063][   T73]      ip6_pol_route+0x56f/0x840
[ 4669.914063][   T73]      fib6_rule_lookup+0x456/0x630
[ 4669.914063][   T73]      ip6_route_input+0x59c/0xa50
[ 4669.914063][   T73]      ipv6_rcv+0x397/0x810
[ 4669.914063][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4669.914063][   T73]      process_backlog+0x101/0x620
[ 4669.914063][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4669.914063][   T73]      net_rx_action+0x495/0xbe0
[ 4669.914063][   T73]      __do_softirq+0x1b5/0x7f6
[ 4669.914063][   T73] 
[ 4669.915728][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4669.915728][   T73]      netdev_get_by_index+0x5e/0x80
[ 4669.915728][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4669.915728][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4669.915728][   T73]      ip6_route_add+0x1c/0x140
[ 4669.915728][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4669.915728][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4669.915728][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4669.915728][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4669.915728][   T73]      netlink_rcv_skb+0x130/0x360
[ 4669.915728][   T73]      netlink_unicast+0x449/0x710
[ 4669.915728][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4669.915728][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4669.915728][   T73]      ___sys_sendmsg+0xee/0x170
[ 4669.915728][   T73]      __sys_sendmsg+0xcd/0x170
[ 4669.915728][   T73]      do_syscall_64+0xc6/0x1e0
[ 4669.915728][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4669.915728][   T73] 
[ 4669.917796][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4669.917796][   T73]      netdev_get_by_index+0x5e/0x80
[ 4669.917796][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4669.917796][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4669.917796][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4669.917796][   T73]      ipv6_add_addr+0x411/0x2000
[ 4669.917796][   T73]      inet6_addr_add+0x30e/0xa40
[ 4669.917796][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4669.917796][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4669.917796][   T73]      netlink_rcv_skb+0x130/0x360
[ 4669.917796][   T73]      netlink_unicast+0x449/0x710
[ 4669.917796][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4669.917796][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4669.917796][   T73]      ___sys_sendmsg+0xee/0x170
[ 4669.917796][   T73]      __sys_sendmsg+0xcd/0x170
[ 4669.917796][   T73]      do_syscall_64+0xc6/0x1e0
[ 4669.917796][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4669.917796][   T73] 
[ 4669.919861][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4669.919861][   T73]      netdev_get_by_index+0x5e/0x80
[ 4669.919861][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4669.919861][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4669.919861][   T73]      ip6_route_add+0x1c/0x140
[ 4669.919861][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4669.919861][   T73]      addrconf_add_dev+0xe2/0x170
[ 4669.919861][   T73]      inet6_addr_add+0x12f/0xa40
[ 4669.919861][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4669.919861][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4669.919861][   T73]      netlink_rcv_skb+0x130/0x360
[ 4669.919861][   T73]      netlink_unicast+0x449/0x710
[ 4669.919861][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4669.919861][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4669.919861][   T73]      ___sys_sendmsg+0xee/0x170
[ 4669.919861][   T73]      __sys_sendmsg+0xcd/0x170
[ 4669.919861][   T73]      do_syscall_64+0xc6/0x1e0
[ 4669.919861][   T73] 
[ 4669.921885][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4669.921885][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4669.921885][   T73]      ipv6_find_idev+0x102/0x170
[ 4669.921885][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4669.921885][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4669.921885][   T73]      netlink_rcv_skb+0x130/0x360
[ 4669.921885][   T73]      netlink_unicast+0x449/0x710
[ 4669.921885][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4669.921885][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4669.921885][   T73]      ___sys_sendmsg+0xee/0x170
[ 4669.921885][   T73]      __sys_sendmsg+0xcd/0x170
[ 4669.921885][   T73]      do_syscall_64+0xc6/0x1e0
[ 4669.921885][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4669.921885][   T73] 
[ 4669.923472][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4669.923472][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4669.923472][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4669.923472][   T73]      ipv6_find_idev+0x102/0x170
[ 4669.923472][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4669.923472][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4669.923472][   T73]      netlink_rcv_skb+0x130/0x360
[ 4669.923472][   T73]      netlink_unicast+0x449/0x710
[ 4669.923472][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4669.923472][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4669.923472][   T73]      ___sys_sendmsg+0xee/0x170
[ 4669.923472][   T73]      __sys_sendmsg+0xcd/0x170
[ 4669.923472][   T73]      do_syscall_64+0xc6/0x1e0
[ 4669.923472][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4669.923472][   T73] 
[ 4669.925206][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4669.925489][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4669.925489][   T73]      netdev_get_by_index+0x5e/0x80
[ 4669.925489][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4669.925489][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4669.925489][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4669.925489][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4669.925489][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4669.925489][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4669.925489][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4669.925489][   T73]      addrconf_dad_begin+0x310/0x670
[ 4669.925489][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4669.925489][   T73]      process_one_work+0x84d/0x18a0
[ 4669.925489][   T73]      worker_thread+0x587/0xd30
[ 4669.925489][   T73]      kthread+0x28a/0x350
[ 4669.925489][   T73]      ret_from_fork+0x31/0x70
[ 4669.925489][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4669.925489][   T73] 
[ 4669.927448][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4669.927448][   T73]      netdev_get_by_index+0x5e/0x80
[ 4669.927448][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4669.927448][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4669.927448][   T73]      ip6_route_add+0x1c/0x140
[ 4669.927448][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4669.927448][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4669.927448][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4669.927448][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4669.927448][   T73]      netlink_rcv_skb+0x130/0x360
[ 4669.927448][   T73]      netlink_unicast+0x449/0x710
[ 4669.927448][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4669.927448][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4669.927448][   T73]      ___sys_sendmsg+0xee/0x170
[ 4669.927448][   T73]      __sys_sendmsg+0xcd/0x170
[ 4669.927448][   T73]      do_syscall_64+0xc6/0x1e0
[ 4669.927448][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4669.927448][   T73] 
[ 4669.929481][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4669.929481][   T73]      netdev_get_by_index+0x5e/0x80
[ 4669.929481][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4669.929481][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4669.929481][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4669.929481][   T73]      ipv6_add_addr+0x411/0x2000
[ 4669.929481][   T73]      inet6_addr_add+0x30e/0xa40
[ 4669.929481][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4669.929481][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4669.929481][   T73]      netlink_rcv_skb+0x130/0x360
[ 4669.929481][   T73]      netlink_unicast+0x449/0x710
[ 4669.929481][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4669.929481][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4669.929481][   T73]      ___sys_sendmsg+0xee/0x170
[ 4669.929481][   T73]      __sys_sendmsg+0xcd/0x170
[ 4669.929481][   T73]      do_syscall_64+0xc6/0x1e0
[ 4669.929481][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4669.929481][   T73] 
[ 4669.931516][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4669.931516][   T73]      netdev_get_by_index+0x5e/0x80
[ 4669.931516][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4669.931516][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4669.931516][   T73]      ip6_route_add+0x1c/0x140
[ 4669.931516][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4669.931516][   T73]      addrconf_add_dev+0xe2/0x170
[ 4669.931516][   T73]      inet6_addr_add+0x12f/0xa40
[ 4669.931516][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4669.931516][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4669.931516][   T73]      netlink_rcv_skb+0x130/0x360
[ 4669.931516][   T73]      netlink_unicast+0x449/0x710
[ 4669.931516][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4669.931516][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4669.931516][   T73]      ___sys_sendmsg+0xee/0x170
[ 4669.931516][   T73]      __sys_sendmsg+0xcd/0x170
[ 4669.931516][   T73]      do_syscall_64+0xc6/0x1e0
[ 4669.931516][   T73] 
[ 4669.933526][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4669.933526][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4669.933526][   T73]      ipv6_find_idev+0x102/0x170
[ 4669.933526][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4669.933526][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4669.933526][   T73]      netlink_rcv_skb+0x130/0x360
[ 4669.933526][   T73]      netlink_unicast+0x449/0x710
[ 4669.933526][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4669.933526][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4669.933526][   T73]      ___sys_sendmsg+0xee/0x170
[ 4669.933526][   T73]      __sys_sendmsg+0xcd/0x170
[ 4669.933526][   T73]      do_syscall_64+0xc6/0x1e0
[ 4669.933526][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4669.933526][   T73] 
[ 4669.935099][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4669.935099][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4669.935099][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4669.935099][   T73]      ipv6_find_idev+0x102/0x170
[ 4669.935099][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4669.935099][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4669.935099][   T73]      netlink_rcv_skb+0x130/0x360
[ 4669.935099][   T73]      netlink_unicast+0x449/0x710
[ 4669.935099][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4669.935099][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4669.935099][   T73]      ___sys_sendmsg+0xee/0x170
[ 4669.935099][   T73]      __sys_sendmsg+0xcd/0x170
[ 4669.935099][   T73]      do_syscall_64+0xc6/0x1e0
[ 4669.935099][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4669.935099][   T73] 
[ 4669.936833][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4669.937119][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4669.937119][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4669.937119][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4669.937119][   T73]      fib6_nh_init+0xa22/0x1580
[ 4669.937119][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4669.937119][   T73]      ip6_route_add+0x1c/0x140
[ 4669.937119][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4669.937119][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4669.937119][   T73]      netlink_rcv_skb+0x130/0x360
[ 4669.937119][   T73]      netlink_unicast+0x449/0x710
[ 4669.937119][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4669.937119][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4669.937119][   T73]      ___sys_sendmsg+0xee/0x170
[ 4669.937119][   T73]      __sys_sendmsg+0xcd/0x170
[ 4669.937119][   T73]      do_syscall_64+0xc6/0x1e0
[ 4669.937119][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4669.937119][   T73] 
[ 4669.939215][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4669.939215][   T73]      dst_init+0x84/0x4a0
[ 4669.939215][   T73]      dst_alloc+0x97/0x150
[ 4669.939215][   T73]      ip6_dst_alloc+0x23/0x90
[ 4669.939215][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4669.939215][   T73]      ip6_pol_route+0x56f/0x840
[ 4669.939215][   T73]      fib6_rule_lookup+0x456/0x630
[ 4669.939215][   T73]      ip6_route_input+0x59c/0xa50
[ 4669.939215][   T73]      ipv6_rcv+0x397/0x810
[ 4669.939215][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4669.939215][   T73]      process_backlog+0x101/0x620
[ 4669.939215][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4669.939215][   T73]      net_rx_action+0x495/0xbe0
[ 4669.939215][   T73]      __do_softirq+0x1b5/0x7f6
[ 4669.939215][   T73] 
[ 4669.941062][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4669.941062][   T73]      netdev_get_by_index+0x5e/0x80
[ 4669.941062][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4669.941062][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4669.941062][   T73]      ip6_route_add+0x1c/0x140
[ 4669.941062][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4669.941062][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4669.941062][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4669.941062][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4669.941062][   T73]      netlink_rcv_skb+0x130/0x360
[ 4669.941062][   T73]      netlink_unicast+0x449/0x710
[ 4669.941062][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4669.941062][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4669.941062][   T73]      ___sys_sendmsg+0xee/0x170
[ 4669.941062][   T73]      __sys_sendmsg+0xcd/0x170
[ 4669.941062][   T73]      do_syscall_64+0xc6/0x1e0
[ 4669.941062][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4669.941062][   T73] 
[ 4669.943366][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4669.943366][   T73]      netdev_get_by_index+0x5e/0x80
[ 4669.943366][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4669.943366][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4669.943366][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4669.943366][   T73]      ipv6_add_addr+0x411/0x2000
[ 4669.943366][   T73]      inet6_addr_add+0x30e/0xa40
[ 4669.943366][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4669.943366][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4669.943366][   T73]      netlink_rcv_skb+0x130/0x360
[ 4669.943366][   T73]      netlink_unicast+0x449/0x710
[ 4669.943366][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4669.943366][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4669.943366][   T73]      ___sys_sendmsg+0xee/0x170
[ 4669.943366][   T73]      __sys_sendmsg+0xcd/0x170
[ 4669.943366][   T73]      do_syscall_64+0xc6/0x1e0
[ 4669.943366][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4669.943366][   T73] 
[ 4669.945577][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4669.945577][   T73]      netdev_get_by_index+0x5e/0x80
[ 4669.945577][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4669.945577][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4669.945577][   T73]      ip6_route_add+0x1c/0x140
[ 4669.945577][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4669.945577][   T73]      addrconf_add_dev+0xe2/0x170
[ 4669.945577][   T73]      inet6_addr_add+0x12f/0xa40
[ 4669.945577][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4669.945577][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4669.945577][   T73]      netlink_rcv_skb+0x130/0x360
[ 4669.945577][   T73]      netlink_unicast+0x449/0x710
[ 4669.945577][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4669.945577][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4669.945577][   T73]      ___sys_sendmsg+0xee/0x170
[ 4669.945577][   T73]      __sys_sendmsg+0xcd/0x170
[ 4669.945577][   T73]      do_syscall_64+0xc6/0x1e0
[ 4669.945577][   T73] 
[ 4669.947890][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4669.947890][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4669.947890][   T73]      ipv6_find_idev+0x102/0x170
[ 4669.947890][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4669.947890][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4669.947890][   T73]      netlink_rcv_skb+0x130/0x360
[ 4669.947890][   T73]      netlink_unicast+0x449/0x710
[ 4669.947890][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4669.947890][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4669.947890][   T73]      ___sys_sendmsg+0xee/0x170
[ 4669.947890][   T73]      __sys_sendmsg+0xcd/0x170
[ 4669.947890][   T73]      do_syscall_64+0xc6/0x1e0
[ 4669.947890][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4669.947890][   T73] 
[ 4669.949655][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4669.949655][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4669.949655][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4669.949655][   T73]      ipv6_find_idev+0x102/0x170
[ 4669.949655][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4669.949655][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4669.949655][   T73]      netlink_rcv_skb+0x130/0x360
[ 4669.949655][   T73]      netlink_unicast+0x449/0x710
[ 4669.949655][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4669.949655][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4669.949655][   T73]      ___sys_sendmsg+0xee/0x170
[ 4669.949655][   T73]      __sys_sendmsg+0xcd/0x170
[ 4669.949655][   T73]      do_syscall_64+0xc6/0x1e0
[ 4669.949655][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4669.949655][   T73] 
[ 4669.951579][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4669.952368][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4669.952368][   T73]      netdev_get_by_index+0x5e/0x80
[ 4669.952368][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4669.952368][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4669.952368][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4669.952368][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4669.952368][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4669.952368][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4669.952368][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4669.952368][   T73]      addrconf_dad_begin+0x310/0x670
[ 4669.952368][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4669.952368][   T73]      process_one_work+0x84d/0x18a0
[ 4669.952368][   T73]      worker_thread+0x587/0xd30
[ 4669.952368][   T73]      kthread+0x28a/0x350
[ 4669.952368][   T73]      ret_from_fork+0x31/0x70
[ 4669.952368][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4669.952368][   T73] 
[ 4669.954335][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4669.954335][   T73]      netdev_get_by_index+0x5e/0x80
[ 4669.954335][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4669.954335][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4669.954335][   T73]      ip6_route_add+0x1c/0x140
[ 4669.954335][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4669.954335][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4669.954335][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4669.954335][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4669.954335][   T73]      netlink_rcv_skb+0x130/0x360
[ 4669.954335][   T73]      netlink_unicast+0x449/0x710
[ 4669.954335][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4669.954335][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4669.954335][   T73]      ___sys_sendmsg+0xee/0x170
[ 4669.954335][   T73]      __sys_sendmsg+0xcd/0x170
[ 4669.954335][   T73]      do_syscall_64+0xc6/0x1e0
[ 4669.954335][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4669.954335][   T73] 
[ 4669.956435][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4669.956435][   T73]      netdev_get_by_index+0x5e/0x80
[ 4669.956435][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4669.956435][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4669.956435][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4669.956435][   T73]      ipv6_add_addr+0x411/0x2000
[ 4669.956435][   T73]      inet6_addr_add+0x30e/0xa40
[ 4669.956435][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4669.956435][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4669.956435][   T73]      netlink_rcv_skb+0x130/0x360
[ 4669.956435][   T73]      netlink_unicast+0x449/0x710
[ 4669.956435][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4669.956435][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4669.956435][   T73]      ___sys_sendmsg+0xee/0x170
[ 4669.956435][   T73]      __sys_sendmsg+0xcd/0x170
[ 4669.956435][   T73]      do_syscall_64+0xc6/0x1e0
[ 4669.956435][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4669.956435][   T73] 
[ 4669.958730][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4669.958730][   T73]      netdev_get_by_index+0x5e/0x80
[ 4669.958730][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4669.958730][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4669.958730][   T73]      ip6_route_add+0x1c/0x140
[ 4669.958730][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4669.958730][   T73]      addrconf_add_dev+0xe2/0x170
[ 4669.958730][   T73]      inet6_addr_add+0x12f/0xa40
[ 4669.958730][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4669.958730][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4669.958730][   T73]      netlink_rcv_skb+0x130/0x360
[ 4669.958730][   T73]      netlink_unicast+0x449/0x710
[ 4669.958730][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4669.958730][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4669.958730][   T73]      ___sys_sendmsg+0xee/0x170
[ 4669.958730][   T73]      __sys_sendmsg+0xcd/0x170
[ 4669.958730][   T73]      do_syscall_64+0xc6/0x1e0
[ 4669.958730][   T73] 
[ 4669.961070][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4669.961070][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4669.961070][   T73]      ipv6_find_idev+0x102/0x170
[ 4669.961070][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4669.961070][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4669.961070][   T73]      netlink_rcv_skb+0x130/0x360
[ 4669.961070][   T73]      netlink_unicast+0x449/0x710
[ 4669.961070][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4669.961070][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4669.961070][   T73]      ___sys_sendmsg+0xee/0x170
[ 4669.961070][   T73]      __sys_sendmsg+0xcd/0x170
[ 4669.961070][   T73]      do_syscall_64+0xc6/0x1e0
[ 4669.961070][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4669.961070][   T73] 
[ 4669.962857][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4669.962857][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4669.962857][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4669.962857][   T73]      ipv6_find_idev+0x102/0x170
[ 4669.962857][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4669.962857][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4669.962857][   T73]      netlink_rcv_skb+0x130/0x360
[ 4669.962857][   T73]      netlink_unicast+0x449/0x710
[ 4669.962857][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4669.962857][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4669.962857][   T73]      ___sys_sendmsg+0xee/0x170
[ 4669.962857][   T73]      __sys_sendmsg+0xcd/0x170
[ 4669.962857][   T73]      do_syscall_64+0xc6/0x1e0
[ 4669.962857][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4669.962857][   T73] 
[ 4680.103831][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4680.104290][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4680.104290][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4680.104290][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4680.104290][   T73]      fib6_nh_init+0xa22/0x1580
[ 4680.104290][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4680.104290][   T73]      ip6_route_add+0x1c/0x140
[ 4680.104290][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4680.104290][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4680.104290][   T73]      netlink_rcv_skb+0x130/0x360
[ 4680.104290][   T73]      netlink_unicast+0x449/0x710
[ 4680.104290][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4680.104290][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4680.104290][   T73]      ___sys_sendmsg+0xee/0x170
[ 4680.104290][   T73]      __sys_sendmsg+0xcd/0x170
[ 4680.104290][   T73]      do_syscall_64+0xc6/0x1e0
[ 4680.104290][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4680.104290][   T73] 
[ 4680.106253][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4680.106253][   T73]      dst_init+0x84/0x4a0
[ 4680.106253][   T73]      dst_alloc+0x97/0x150
[ 4680.106253][   T73]      ip6_dst_alloc+0x23/0x90
[ 4680.106253][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4680.106253][   T73]      ip6_pol_route+0x56f/0x840
[ 4680.106253][   T73]      fib6_rule_lookup+0x456/0x630
[ 4680.106253][   T73]      ip6_route_input+0x59c/0xa50
[ 4680.106253][   T73]      ipv6_rcv+0x397/0x810
[ 4680.106253][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4680.106253][   T73]      process_backlog+0x101/0x620
[ 4680.106253][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4680.106253][   T73]      net_rx_action+0x495/0xbe0
[ 4680.106253][   T73]      __do_softirq+0x1b5/0x7f6
[ 4680.106253][   T73] 
[ 4680.107951][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4680.107951][   T73]      netdev_get_by_index+0x5e/0x80
[ 4680.107951][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4680.107951][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4680.107951][   T73]      ip6_route_add+0x1c/0x140
[ 4680.107951][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4680.107951][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4680.107951][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4680.107951][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4680.107951][   T73]      netlink_rcv_skb+0x130/0x360
[ 4680.107951][   T73]      netlink_unicast+0x449/0x710
[ 4680.107951][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4680.107951][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4680.107951][   T73]      ___sys_sendmsg+0xee/0x170
[ 4680.107951][   T73]      __sys_sendmsg+0xcd/0x170
[ 4680.107951][   T73]      do_syscall_64+0xc6/0x1e0
[ 4680.107951][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4680.107951][   T73] 
[ 4680.110000][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4680.110000][   T73]      netdev_get_by_index+0x5e/0x80
[ 4680.110000][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4680.110000][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4680.110000][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4680.110000][   T73]      ipv6_add_addr+0x411/0x2000
[ 4680.110000][   T73]      inet6_addr_add+0x30e/0xa40
[ 4680.110000][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4680.110000][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4680.110000][   T73]      netlink_rcv_skb+0x130/0x360
[ 4680.110000][   T73]      netlink_unicast+0x449/0x710
[ 4680.110000][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4680.110000][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4680.110000][   T73]      ___sys_sendmsg+0xee/0x170
[ 4680.110000][   T73]      __sys_sendmsg+0xcd/0x170
[ 4680.110000][   T73]      do_syscall_64+0xc6/0x1e0
[ 4680.110000][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4680.110000][   T73] 
[ 4680.112035][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4680.112035][   T73]      netdev_get_by_index+0x5e/0x80
[ 4680.112035][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4680.112035][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4680.112035][   T73]      ip6_route_add+0x1c/0x140
[ 4680.112035][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4680.112035][   T73]      addrconf_add_dev+0xe2/0x170
[ 4680.112035][   T73]      inet6_addr_add+0x12f/0xa40
[ 4680.112035][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4680.112035][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4680.112035][   T73]      netlink_rcv_skb+0x130/0x360
[ 4680.112035][   T73]      netlink_unicast+0x449/0x710
[ 4680.112035][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4680.112035][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4680.112035][   T73]      ___sys_sendmsg+0xee/0x170
[ 4680.112035][   T73]      __sys_sendmsg+0xcd/0x170
[ 4680.112035][   T73]      do_syscall_64+0xc6/0x1e0
[ 4680.112035][   T73] 
[ 4680.114061][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4680.114061][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4680.114061][   T73]      ipv6_find_idev+0x102/0x170
[ 4680.114061][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4680.114061][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4680.114061][   T73]      netlink_rcv_skb+0x130/0x360
[ 4680.114061][   T73]      netlink_unicast+0x449/0x710
[ 4680.114061][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4680.114061][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4680.114061][   T73]      ___sys_sendmsg+0xee/0x170
[ 4680.114061][   T73]      __sys_sendmsg+0xcd/0x170
[ 4680.114061][   T73]      do_syscall_64+0xc6/0x1e0
[ 4680.114061][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4680.114061][   T73] 
[ 4680.115636][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4680.115636][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4680.115636][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4680.115636][   T73]      ipv6_find_idev+0x102/0x170
[ 4680.115636][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4680.115636][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4680.115636][   T73]      netlink_rcv_skb+0x130/0x360
[ 4680.115636][   T73]      netlink_unicast+0x449/0x710
[ 4680.115636][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4680.115636][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4680.115636][   T73]      ___sys_sendmsg+0xee/0x170
[ 4680.115636][   T73]      __sys_sendmsg+0xcd/0x170
[ 4680.115636][   T73]      do_syscall_64+0xc6/0x1e0
[ 4680.115636][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4680.115636][   T73] 
[ 4680.117393][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4680.117680][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4680.117680][   T73]      netdev_get_by_index+0x5e/0x80
[ 4680.117680][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4680.117680][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4680.117680][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4680.117680][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4680.117680][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4680.117680][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4680.117680][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4680.117680][   T73]      addrconf_dad_begin+0x310/0x670
[ 4680.117680][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4680.117680][   T73]      process_one_work+0x84d/0x18a0
[ 4680.117680][   T73]      worker_thread+0x587/0xd30
[ 4680.117680][   T73]      kthread+0x28a/0x350
[ 4680.117680][   T73]      ret_from_fork+0x31/0x70
[ 4680.117680][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4680.117680][   T73] 
[ 4680.119658][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4680.119658][   T73]      netdev_get_by_index+0x5e/0x80
[ 4680.119658][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4680.119658][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4680.119658][   T73]      ip6_route_add+0x1c/0x140
[ 4680.119658][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4680.119658][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4680.119658][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4680.119658][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4680.119658][   T73]      netlink_rcv_skb+0x130/0x360
[ 4680.119658][   T73]      netlink_unicast+0x449/0x710
[ 4680.119658][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4680.119658][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4680.119658][   T73]      ___sys_sendmsg+0xee/0x170
[ 4680.119658][   T73]      __sys_sendmsg+0xcd/0x170
[ 4680.119658][   T73]      do_syscall_64+0xc6/0x1e0
[ 4680.119658][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4680.119658][   T73] 
[ 4680.121705][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4680.121705][   T73]      netdev_get_by_index+0x5e/0x80
[ 4680.121705][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4680.121705][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4680.121705][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4680.121705][   T73]      ipv6_add_addr+0x411/0x2000
[ 4680.121705][   T73]      inet6_addr_add+0x30e/0xa40
[ 4680.121705][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4680.121705][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4680.121705][   T73]      netlink_rcv_skb+0x130/0x360
[ 4680.121705][   T73]      netlink_unicast+0x449/0x710
[ 4680.121705][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4680.121705][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4680.121705][   T73]      ___sys_sendmsg+0xee/0x170
[ 4680.121705][   T73]      __sys_sendmsg+0xcd/0x170
[ 4680.121705][   T73]      do_syscall_64+0xc6/0x1e0
[ 4680.121705][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4680.121705][   T73] 
[ 4680.123762][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4680.123762][   T73]      netdev_get_by_index+0x5e/0x80
[ 4680.123762][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4680.123762][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4680.123762][   T73]      ip6_route_add+0x1c/0x140
[ 4680.123762][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4680.123762][   T73]      addrconf_add_dev+0xe2/0x170
[ 4680.123762][   T73]      inet6_addr_add+0x12f/0xa40
[ 4680.123762][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4680.123762][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4680.123762][   T73]      netlink_rcv_skb+0x130/0x360
[ 4680.123762][   T73]      netlink_unicast+0x449/0x710
[ 4680.123762][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4680.123762][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4680.123762][   T73]      ___sys_sendmsg+0xee/0x170
[ 4680.123762][   T73]      __sys_sendmsg+0xcd/0x170
[ 4680.123762][   T73]      do_syscall_64+0xc6/0x1e0
[ 4680.123762][   T73] 
[ 4680.125769][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4680.125769][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4680.125769][   T73]      ipv6_find_idev+0x102/0x170
[ 4680.125769][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4680.125769][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4680.125769][   T73]      netlink_rcv_skb+0x130/0x360
[ 4680.125769][   T73]      netlink_unicast+0x449/0x710
[ 4680.125769][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4680.125769][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4680.125769][   T73]      ___sys_sendmsg+0xee/0x170
[ 4680.125769][   T73]      __sys_sendmsg+0xcd/0x170
[ 4680.125769][   T73]      do_syscall_64+0xc6/0x1e0
[ 4680.125769][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4680.125769][   T73] 
[ 4680.127353][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4680.127353][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4680.127353][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4680.127353][   T73]      ipv6_find_idev+0x102/0x170
[ 4680.127353][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4680.127353][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4680.127353][   T73]      netlink_rcv_skb+0x130/0x360
[ 4680.127353][   T73]      netlink_unicast+0x449/0x710
[ 4680.127353][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4680.127353][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4680.127353][   T73]      ___sys_sendmsg+0xee/0x170
[ 4680.127353][   T73]      __sys_sendmsg+0xcd/0x170
[ 4680.127353][   T73]      do_syscall_64+0xc6/0x1e0
[ 4680.127353][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4680.127353][   T73] 
[ 4680.129104][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4680.129380][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4680.129380][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4680.129380][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4680.129380][   T73]      fib6_nh_init+0xa22/0x1580
[ 4680.129380][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4680.129380][   T73]      ip6_route_add+0x1c/0x140
[ 4680.129380][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4680.129380][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4680.129380][   T73]      netlink_rcv_skb+0x130/0x360
[ 4680.129380][   T73]      netlink_unicast+0x449/0x710
[ 4680.129380][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4680.129380][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4680.129380][   T73]      ___sys_sendmsg+0xee/0x170
[ 4680.129380][   T73]      __sys_sendmsg+0xcd/0x170
[ 4680.129380][   T73]      do_syscall_64+0xc6/0x1e0
[ 4680.129380][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4680.129380][   T73] 
[ 4680.131500][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4680.131500][   T73]      dst_init+0x84/0x4a0
[ 4680.131500][   T73]      dst_alloc+0x97/0x150
[ 4680.131500][   T73]      ip6_dst_alloc+0x23/0x90
[ 4680.131500][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4680.131500][   T73]      ip6_pol_route+0x56f/0x840
[ 4680.131500][   T73]      fib6_rule_lookup+0x456/0x630
[ 4680.131500][   T73]      ip6_route_input+0x59c/0xa50
[ 4680.131500][   T73]      ipv6_rcv+0x397/0x810
[ 4680.131500][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4680.131500][   T73]      process_backlog+0x101/0x620
[ 4680.131500][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4680.131500][   T73]      net_rx_action+0x495/0xbe0
[ 4680.131500][   T73]      __do_softirq+0x1b5/0x7f6
[ 4680.131500][   T73] 
[ 4680.133395][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4680.133395][   T73]      netdev_get_by_index+0x5e/0x80
[ 4680.133395][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4680.133395][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4680.133395][   T73]      ip6_route_add+0x1c/0x140
[ 4680.133395][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4680.133395][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4680.133395][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4680.133395][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4680.133395][   T73]      netlink_rcv_skb+0x130/0x360
[ 4680.133395][   T73]      netlink_unicast+0x449/0x710
[ 4680.133395][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4680.133395][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4680.133395][   T73]      ___sys_sendmsg+0xee/0x170
[ 4680.133395][   T73]      __sys_sendmsg+0xcd/0x170
[ 4680.133395][   T73]      do_syscall_64+0xc6/0x1e0
[ 4680.133395][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4680.133395][   T73] 
[ 4680.135681][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4680.135681][   T73]      netdev_get_by_index+0x5e/0x80
[ 4680.135681][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4680.135681][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4680.135681][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4680.135681][   T73]      ipv6_add_addr+0x411/0x2000
[ 4680.135681][   T73]      inet6_addr_add+0x30e/0xa40
[ 4680.135681][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4680.135681][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4680.135681][   T73]      netlink_rcv_skb+0x130/0x360
[ 4680.135681][   T73]      netlink_unicast+0x449/0x710
[ 4680.135681][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4680.135681][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4680.135681][   T73]      ___sys_sendmsg+0xee/0x170
[ 4680.135681][   T73]      __sys_sendmsg+0xcd/0x170
[ 4680.135681][   T73]      do_syscall_64+0xc6/0x1e0
[ 4680.135681][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4680.135681][   T73] 
[ 4680.137991][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4680.137991][   T73]      netdev_get_by_index+0x5e/0x80
[ 4680.137991][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4680.137991][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4680.137991][   T73]      ip6_route_add+0x1c/0x140
[ 4680.137991][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4680.137991][   T73]      addrconf_add_dev+0xe2/0x170
[ 4680.137991][   T73]      inet6_addr_add+0x12f/0xa40
[ 4680.137991][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4680.137991][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4680.137991][   T73]      netlink_rcv_skb+0x130/0x360
[ 4680.137991][   T73]      netlink_unicast+0x449/0x710
[ 4680.137991][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4680.137991][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4680.137991][   T73]      ___sys_sendmsg+0xee/0x170
[ 4680.137991][   T73]      __sys_sendmsg+0xcd/0x170
[ 4680.137991][   T73]      do_syscall_64+0xc6/0x1e0
[ 4680.137991][   T73] 
[ 4680.140208][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4680.140208][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4680.140208][   T73]      ipv6_find_idev+0x102/0x170
[ 4680.140208][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4680.140208][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4680.140208][   T73]      netlink_rcv_skb+0x130/0x360
[ 4680.140208][   T73]      netlink_unicast+0x449/0x710
[ 4680.140208][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4680.140208][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4680.140208][   T73]      ___sys_sendmsg+0xee/0x170
[ 4680.140208][   T73]      __sys_sendmsg+0xcd/0x170
[ 4680.140208][   T73]      do_syscall_64+0xc6/0x1e0
[ 4680.140208][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4680.140208][   T73] 
[ 4680.141968][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4680.141968][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4680.141968][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4680.141968][   T73]      ipv6_find_idev+0x102/0x170
[ 4680.141968][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4680.141968][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4680.141968][   T73]      netlink_rcv_skb+0x130/0x360
[ 4680.141968][   T73]      netlink_unicast+0x449/0x710
[ 4680.141968][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4680.141968][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4680.141968][   T73]      ___sys_sendmsg+0xee/0x170
[ 4680.141968][   T73]      __sys_sendmsg+0xcd/0x170
[ 4680.141968][   T73]      do_syscall_64+0xc6/0x1e0
[ 4680.141968][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4680.141968][   T73] 
[ 4680.143904][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4680.144274][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4680.144274][   T73]      netdev_get_by_index+0x5e/0x80
[ 4680.144274][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4680.144274][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4680.144274][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4680.144274][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4680.144274][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4680.144274][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4680.144274][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4680.144274][   T73]      addrconf_dad_begin+0x310/0x670
[ 4680.144274][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4680.144274][   T73]      process_one_work+0x84d/0x18a0
[ 4680.144274][   T73]      worker_thread+0x587/0xd30
[ 4680.144274][   T73]      kthread+0x28a/0x350
[ 4680.144274][   T73]      ret_from_fork+0x31/0x70
[ 4680.144274][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4680.144274][   T73] 
[ 4680.146409][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4680.146409][   T73]      netdev_get_by_index+0x5e/0x80
[ 4680.146409][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4680.146409][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4680.146409][   T73]      ip6_route_add+0x1c/0x140
[ 4680.146409][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4680.146409][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4680.146409][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4680.146409][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4680.146409][   T73]      netlink_rcv_skb+0x130/0x360
[ 4680.146409][   T73]      netlink_unicast+0x449/0x710
[ 4680.146409][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4680.146409][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4680.146409][   T73]      ___sys_sendmsg+0xee/0x170
[ 4680.146409][   T73]      __sys_sendmsg+0xcd/0x170
[ 4680.146409][   T73]      do_syscall_64+0xc6/0x1e0
[ 4680.146409][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4680.146409][   T73] 
[ 4680.148718][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4680.148718][   T73]      netdev_get_by_index+0x5e/0x80
[ 4680.148718][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4680.148718][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4680.148718][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4680.148718][   T73]      ipv6_add_addr+0x411/0x2000
[ 4680.148718][   T73]      inet6_addr_add+0x30e/0xa40
[ 4680.148718][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4680.148718][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4680.148718][   T73]      netlink_rcv_skb+0x130/0x360
[ 4680.148718][   T73]      netlink_unicast+0x449/0x710
[ 4680.148718][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4680.148718][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4680.148718][   T73]      ___sys_sendmsg+0xee/0x170
[ 4680.148718][   T73]      __sys_sendmsg+0xcd/0x170
[ 4680.148718][   T73]      do_syscall_64+0xc6/0x1e0
[ 4680.148718][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4680.148718][   T73] 
[ 4680.151018][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4680.151018][   T73]      netdev_get_by_index+0x5e/0x80
[ 4680.151018][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4680.151018][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4680.151018][   T73]      ip6_route_add+0x1c/0x140
[ 4680.151018][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4680.151018][   T73]      addrconf_add_dev+0xe2/0x170
[ 4680.151018][   T73]      inet6_addr_add+0x12f/0xa40
[ 4680.151018][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4680.151018][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4680.151018][   T73]      netlink_rcv_skb+0x130/0x360
[ 4680.151018][   T73]      netlink_unicast+0x449/0x710
[ 4680.151018][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4680.151018][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4680.151018][   T73]      ___sys_sendmsg+0xee/0x170
[ 4680.151018][   T73]      __sys_sendmsg+0xcd/0x170
[ 4680.151018][   T73]      do_syscall_64+0xc6/0x1e0
[ 4680.151018][   T73] 
[ 4680.153283][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4680.153283][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4680.153283][   T73]      ipv6_find_idev+0x102/0x170
[ 4680.153283][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4680.153283][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4680.153283][   T73]      netlink_rcv_skb+0x130/0x360
[ 4680.153283][   T73]      netlink_unicast+0x449/0x710
[ 4680.153283][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4680.153283][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4680.153283][   T73]      ___sys_sendmsg+0xee/0x170
[ 4680.153283][   T73]      __sys_sendmsg+0xcd/0x170
[ 4680.153283][   T73]      do_syscall_64+0xc6/0x1e0
[ 4680.153283][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4680.153283][   T73] 
[ 4680.155061][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4680.155061][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4680.155061][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4680.155061][   T73]      ipv6_find_idev+0x102/0x170
[ 4680.155061][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4680.155061][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4680.155061][   T73]      netlink_rcv_skb+0x130/0x360
[ 4680.155061][   T73]      netlink_unicast+0x449/0x710
[ 4680.155061][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4680.155061][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4680.155061][   T73]      ___sys_sendmsg+0xee/0x170
[ 4680.155061][   T73]      __sys_sendmsg+0xcd/0x170
[ 4680.155061][   T73]      do_syscall_64+0xc6/0x1e0
[ 4680.155061][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4680.155061][   T73] 
[ 4690.399827][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4690.400311][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4690.400311][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4690.400311][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4690.400311][   T73]      fib6_nh_init+0xa22/0x1580
[ 4690.400311][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4690.400311][   T73]      ip6_route_add+0x1c/0x140
[ 4690.400311][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4690.400311][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4690.400311][   T73]      netlink_rcv_skb+0x130/0x360
[ 4690.400311][   T73]      netlink_unicast+0x449/0x710
[ 4690.400311][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4690.400311][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4690.400311][   T73]      ___sys_sendmsg+0xee/0x170
[ 4690.400311][   T73]      __sys_sendmsg+0xcd/0x170
[ 4690.400311][   T73]      do_syscall_64+0xc6/0x1e0
[ 4690.400311][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4690.400311][   T73] 
[ 4690.402236][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4690.402236][   T73]      dst_init+0x84/0x4a0
[ 4690.402236][   T73]      dst_alloc+0x97/0x150
[ 4690.402236][   T73]      ip6_dst_alloc+0x23/0x90
[ 4690.402236][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4690.402236][   T73]      ip6_pol_route+0x56f/0x840
[ 4690.402236][   T73]      fib6_rule_lookup+0x456/0x630
[ 4690.402236][   T73]      ip6_route_input+0x59c/0xa50
[ 4690.402236][   T73]      ipv6_rcv+0x397/0x810
[ 4690.402236][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4690.402236][   T73]      process_backlog+0x101/0x620
[ 4690.402236][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4690.402236][   T73]      net_rx_action+0x495/0xbe0
[ 4690.402236][   T73]      __do_softirq+0x1b5/0x7f6
[ 4690.402236][   T73] 
[ 4690.403939][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4690.403939][   T73]      netdev_get_by_index+0x5e/0x80
[ 4690.403939][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4690.403939][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4690.403939][   T73]      ip6_route_add+0x1c/0x140
[ 4690.403939][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4690.403939][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4690.403939][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4690.403939][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4690.403939][   T73]      netlink_rcv_skb+0x130/0x360
[ 4690.403939][   T73]      netlink_unicast+0x449/0x710
[ 4690.403939][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4690.403939][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4690.403939][   T73]      ___sys_sendmsg+0xee/0x170
[ 4690.403939][   T73]      __sys_sendmsg+0xcd/0x170
[ 4690.403939][   T73]      do_syscall_64+0xc6/0x1e0
[ 4690.403939][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4690.403939][   T73] 
[ 4690.405991][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4690.405991][   T73]      netdev_get_by_index+0x5e/0x80
[ 4690.405991][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4690.405991][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4690.405991][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4690.405991][   T73]      ipv6_add_addr+0x411/0x2000
[ 4690.405991][   T73]      inet6_addr_add+0x30e/0xa40
[ 4690.405991][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4690.405991][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4690.405991][   T73]      netlink_rcv_skb+0x130/0x360
[ 4690.405991][   T73]      netlink_unicast+0x449/0x710
[ 4690.405991][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4690.405991][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4690.405991][   T73]      ___sys_sendmsg+0xee/0x170
[ 4690.405991][   T73]      __sys_sendmsg+0xcd/0x170
[ 4690.405991][   T73]      do_syscall_64+0xc6/0x1e0
[ 4690.405991][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4690.405991][   T73] 
[ 4690.408033][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4690.408033][   T73]      netdev_get_by_index+0x5e/0x80
[ 4690.408033][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4690.408033][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4690.408033][   T73]      ip6_route_add+0x1c/0x140
[ 4690.408033][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4690.408033][   T73]      addrconf_add_dev+0xe2/0x170
[ 4690.408033][   T73]      inet6_addr_add+0x12f/0xa40
[ 4690.408033][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4690.408033][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4690.408033][   T73]      netlink_rcv_skb+0x130/0x360
[ 4690.408033][   T73]      netlink_unicast+0x449/0x710
[ 4690.408033][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4690.408033][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4690.408033][   T73]      ___sys_sendmsg+0xee/0x170
[ 4690.408033][   T73]      __sys_sendmsg+0xcd/0x170
[ 4690.408033][   T73]      do_syscall_64+0xc6/0x1e0
[ 4690.408033][   T73] 
[ 4690.410034][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4690.410034][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4690.410034][   T73]      ipv6_find_idev+0x102/0x170
[ 4690.410034][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4690.410034][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4690.410034][   T73]      netlink_rcv_skb+0x130/0x360
[ 4690.410034][   T73]      netlink_unicast+0x449/0x710
[ 4690.410034][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4690.410034][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4690.410034][   T73]      ___sys_sendmsg+0xee/0x170
[ 4690.410034][   T73]      __sys_sendmsg+0xcd/0x170
[ 4690.410034][   T73]      do_syscall_64+0xc6/0x1e0
[ 4690.410034][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4690.410034][   T73] 
[ 4690.411610][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4690.411610][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4690.411610][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4690.411610][   T73]      ipv6_find_idev+0x102/0x170
[ 4690.411610][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4690.411610][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4690.411610][   T73]      netlink_rcv_skb+0x130/0x360
[ 4690.411610][   T73]      netlink_unicast+0x449/0x710
[ 4690.411610][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4690.411610][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4690.411610][   T73]      ___sys_sendmsg+0xee/0x170
[ 4690.411610][   T73]      __sys_sendmsg+0xcd/0x170
[ 4690.411610][   T73]      do_syscall_64+0xc6/0x1e0
[ 4690.411610][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4690.411610][   T73] 
[ 4690.413338][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4690.413613][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4690.413613][   T73]      netdev_get_by_index+0x5e/0x80
[ 4690.413613][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4690.413613][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4690.413613][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4690.413613][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4690.413613][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4690.413613][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4690.413613][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4690.413613][   T73]      addrconf_dad_begin+0x310/0x670
[ 4690.413613][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4690.413613][   T73]      process_one_work+0x84d/0x18a0
[ 4690.413613][   T73]      worker_thread+0x587/0xd30
[ 4690.413613][   T73]      kthread+0x28a/0x350
[ 4690.413613][   T73]      ret_from_fork+0x31/0x70
[ 4690.413613][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4690.413613][   T73] 
[ 4690.415568][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4690.415568][   T73]      netdev_get_by_index+0x5e/0x80
[ 4690.415568][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4690.415568][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4690.415568][   T73]      ip6_route_add+0x1c/0x140
[ 4690.415568][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4690.415568][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4690.415568][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4690.415568][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4690.415568][   T73]      netlink_rcv_skb+0x130/0x360
[ 4690.415568][   T73]      netlink_unicast+0x449/0x710
[ 4690.415568][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4690.415568][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4690.415568][   T73]      ___sys_sendmsg+0xee/0x170
[ 4690.415568][   T73]      __sys_sendmsg+0xcd/0x170
[ 4690.415568][   T73]      do_syscall_64+0xc6/0x1e0
[ 4690.415568][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4690.415568][   T73] 
[ 4690.417606][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4690.417606][   T73]      netdev_get_by_index+0x5e/0x80
[ 4690.417606][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4690.417606][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4690.417606][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4690.417606][   T73]      ipv6_add_addr+0x411/0x2000
[ 4690.417606][   T73]      inet6_addr_add+0x30e/0xa40
[ 4690.417606][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4690.417606][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4690.417606][   T73]      netlink_rcv_skb+0x130/0x360
[ 4690.417606][   T73]      netlink_unicast+0x449/0x710
[ 4690.417606][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4690.417606][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4690.417606][   T73]      ___sys_sendmsg+0xee/0x170
[ 4690.417606][   T73]      __sys_sendmsg+0xcd/0x170
[ 4690.417606][   T73]      do_syscall_64+0xc6/0x1e0
[ 4690.417606][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4690.417606][   T73] 
[ 4690.419635][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4690.419635][   T73]      netdev_get_by_index+0x5e/0x80
[ 4690.419635][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4690.419635][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4690.419635][   T73]      ip6_route_add+0x1c/0x140
[ 4690.419635][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4690.419635][   T73]      addrconf_add_dev+0xe2/0x170
[ 4690.419635][   T73]      inet6_addr_add+0x12f/0xa40
[ 4690.419635][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4690.419635][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4690.419635][   T73]      netlink_rcv_skb+0x130/0x360
[ 4690.419635][   T73]      netlink_unicast+0x449/0x710
[ 4690.419635][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4690.419635][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4690.419635][   T73]      ___sys_sendmsg+0xee/0x170
[ 4690.419635][   T73]      __sys_sendmsg+0xcd/0x170
[ 4690.419635][   T73]      do_syscall_64+0xc6/0x1e0
[ 4690.419635][   T73] 
[ 4690.421626][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4690.421626][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4690.421626][   T73]      ipv6_find_idev+0x102/0x170
[ 4690.421626][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4690.421626][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4690.421626][   T73]      netlink_rcv_skb+0x130/0x360
[ 4690.421626][   T73]      netlink_unicast+0x449/0x710
[ 4690.421626][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4690.421626][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4690.421626][   T73]      ___sys_sendmsg+0xee/0x170
[ 4690.421626][   T73]      __sys_sendmsg+0xcd/0x170
[ 4690.421626][   T73]      do_syscall_64+0xc6/0x1e0
[ 4690.421626][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4690.421626][   T73] 
[ 4690.423199][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4690.423199][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4690.423199][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4690.423199][   T73]      ipv6_find_idev+0x102/0x170
[ 4690.423199][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4690.423199][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4690.423199][   T73]      netlink_rcv_skb+0x130/0x360
[ 4690.423199][   T73]      netlink_unicast+0x449/0x710
[ 4690.423199][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4690.423199][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4690.423199][   T73]      ___sys_sendmsg+0xee/0x170
[ 4690.423199][   T73]      __sys_sendmsg+0xcd/0x170
[ 4690.423199][   T73]      do_syscall_64+0xc6/0x1e0
[ 4690.423199][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4690.423199][   T73] 
[ 4690.424917][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4690.425183][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4690.425183][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4690.425183][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4690.425183][   T73]      fib6_nh_init+0xa22/0x1580
[ 4690.425183][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4690.425183][   T73]      ip6_route_add+0x1c/0x140
[ 4690.425183][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4690.425183][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4690.425183][   T73]      netlink_rcv_skb+0x130/0x360
[ 4690.425183][   T73]      netlink_unicast+0x449/0x710
[ 4690.425183][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4690.425183][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4690.425183][   T73]      ___sys_sendmsg+0xee/0x170
[ 4690.425183][   T73]      __sys_sendmsg+0xcd/0x170
[ 4690.425183][   T73]      do_syscall_64+0xc6/0x1e0
[ 4690.425183][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4690.425183][   T73] 
[ 4690.427236][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4690.427236][   T73]      dst_init+0x84/0x4a0
[ 4690.427236][   T73]      dst_alloc+0x97/0x150
[ 4690.427236][   T73]      ip6_dst_alloc+0x23/0x90
[ 4690.427236][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4690.427236][   T73]      ip6_pol_route+0x56f/0x840
[ 4690.427236][   T73]      fib6_rule_lookup+0x456/0x630
[ 4690.427236][   T73]      ip6_route_input+0x59c/0xa50
[ 4690.427236][   T73]      ipv6_rcv+0x397/0x810
[ 4690.427236][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4690.427236][   T73]      process_backlog+0x101/0x620
[ 4690.427236][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4690.427236][   T73]      net_rx_action+0x495/0xbe0
[ 4690.427236][   T73]      __do_softirq+0x1b5/0x7f6
[ 4690.427236][   T73] 
[ 4690.429699][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4690.429699][   T73]      netdev_get_by_index+0x5e/0x80
[ 4690.429699][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4690.429699][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4690.429699][   T73]      ip6_route_add+0x1c/0x140
[ 4690.429699][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4690.429699][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4690.429699][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4690.429699][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4690.429699][   T73]      netlink_rcv_skb+0x130/0x360
[ 4690.429699][   T73]      netlink_unicast+0x449/0x710
[ 4690.429699][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4690.429699][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4690.429699][   T73]      ___sys_sendmsg+0xee/0x170
[ 4690.429699][   T73]      __sys_sendmsg+0xcd/0x170
[ 4690.429699][   T73]      do_syscall_64+0xc6/0x1e0
[ 4690.429699][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4690.429699][   T73] 
[ 4690.431978][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4690.431978][   T73]      netdev_get_by_index+0x5e/0x80
[ 4690.431978][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4690.431978][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4690.431978][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4690.431978][   T73]      ipv6_add_addr+0x411/0x2000
[ 4690.431978][   T73]      inet6_addr_add+0x30e/0xa40
[ 4690.431978][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4690.431978][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4690.431978][   T73]      netlink_rcv_skb+0x130/0x360
[ 4690.431978][   T73]      netlink_unicast+0x449/0x710
[ 4690.431978][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4690.431978][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4690.431978][   T73]      ___sys_sendmsg+0xee/0x170
[ 4690.431978][   T73]      __sys_sendmsg+0xcd/0x170
[ 4690.431978][   T73]      do_syscall_64+0xc6/0x1e0
[ 4690.431978][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4690.431978][   T73] 
[ 4690.434220][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4690.434220][   T73]      netdev_get_by_index+0x5e/0x80
[ 4690.434220][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4690.434220][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4690.434220][   T73]      ip6_route_add+0x1c/0x140
[ 4690.434220][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4690.434220][   T73]      addrconf_add_dev+0xe2/0x170
[ 4690.434220][   T73]      inet6_addr_add+0x12f/0xa40
[ 4690.434220][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4690.434220][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4690.434220][   T73]      netlink_rcv_skb+0x130/0x360
[ 4690.434220][   T73]      netlink_unicast+0x449/0x710
[ 4690.434220][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4690.434220][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4690.434220][   T73]      ___sys_sendmsg+0xee/0x170
[ 4690.434220][   T73]      __sys_sendmsg+0xcd/0x170
[ 4690.434220][   T73]      do_syscall_64+0xc6/0x1e0
[ 4690.434220][   T73] 
[ 4690.436486][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4690.436486][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4690.436486][   T73]      ipv6_find_idev+0x102/0x170
[ 4690.436486][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4690.436486][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4690.436486][   T73]      netlink_rcv_skb+0x130/0x360
[ 4690.436486][   T73]      netlink_unicast+0x449/0x710
[ 4690.436486][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4690.436486][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4690.436486][   T73]      ___sys_sendmsg+0xee/0x170
[ 4690.436486][   T73]      __sys_sendmsg+0xcd/0x170
[ 4690.436486][   T73]      do_syscall_64+0xc6/0x1e0
[ 4690.436486][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4690.436486][   T73] 
[ 4690.438308][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4690.438308][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4690.438308][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4690.438308][   T73]      ipv6_find_idev+0x102/0x170
[ 4690.438308][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4690.438308][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4690.438308][   T73]      netlink_rcv_skb+0x130/0x360
[ 4690.438308][   T73]      netlink_unicast+0x449/0x710
[ 4690.438308][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4690.438308][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4690.438308][   T73]      ___sys_sendmsg+0xee/0x170
[ 4690.438308][   T73]      __sys_sendmsg+0xcd/0x170
[ 4690.438308][   T73]      do_syscall_64+0xc6/0x1e0
[ 4690.438308][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4690.438308][   T73] 
[ 4690.440217][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4690.440548][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4690.440548][   T73]      netdev_get_by_index+0x5e/0x80
[ 4690.440548][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4690.440548][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4690.440548][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4690.440548][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4690.440548][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4690.440548][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4690.440548][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4690.440548][   T73]      addrconf_dad_begin+0x310/0x670
[ 4690.440548][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4690.440548][   T73]      process_one_work+0x84d/0x18a0
[ 4690.440548][   T73]      worker_thread+0x587/0xd30
[ 4690.440548][   T73]      kthread+0x28a/0x350
[ 4690.440548][   T73]      ret_from_fork+0x31/0x70
[ 4690.440548][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4690.440548][   T73] 
[ 4690.442684][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4690.442684][   T73]      netdev_get_by_index+0x5e/0x80
[ 4690.442684][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4690.442684][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4690.442684][   T73]      ip6_route_add+0x1c/0x140
[ 4690.442684][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4690.442684][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4690.442684][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4690.442684][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4690.442684][   T73]      netlink_rcv_skb+0x130/0x360
[ 4690.442684][   T73]      netlink_unicast+0x449/0x710
[ 4690.442684][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4690.442684][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4690.442684][   T73]      ___sys_sendmsg+0xee/0x170
[ 4690.442684][   T73]      __sys_sendmsg+0xcd/0x170
[ 4690.442684][   T73]      do_syscall_64+0xc6/0x1e0
[ 4690.442684][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4690.442684][   T73] 
[ 4690.444969][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4690.444969][   T73]      netdev_get_by_index+0x5e/0x80
[ 4690.444969][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4690.444969][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4690.444969][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4690.444969][   T73]      ipv6_add_addr+0x411/0x2000
[ 4690.444969][   T73]      inet6_addr_add+0x30e/0xa40
[ 4690.444969][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4690.444969][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4690.444969][   T73]      netlink_rcv_skb+0x130/0x360
[ 4690.444969][   T73]      netlink_unicast+0x449/0x710
[ 4690.444969][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4690.444969][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4690.444969][   T73]      ___sys_sendmsg+0xee/0x170
[ 4690.444969][   T73]      __sys_sendmsg+0xcd/0x170
[ 4690.444969][   T73]      do_syscall_64+0xc6/0x1e0
[ 4690.444969][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4690.444969][   T73] 
[ 4690.447269][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4690.447269][   T73]      netdev_get_by_index+0x5e/0x80
[ 4690.447269][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4690.447269][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4690.447269][   T73]      ip6_route_add+0x1c/0x140
[ 4690.447269][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4690.447269][   T73]      addrconf_add_dev+0xe2/0x170
[ 4690.447269][   T73]      inet6_addr_add+0x12f/0xa40
[ 4690.447269][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4690.447269][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4690.447269][   T73]      netlink_rcv_skb+0x130/0x360
[ 4690.447269][   T73]      netlink_unicast+0x449/0x710
[ 4690.447269][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4690.447269][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4690.447269][   T73]      ___sys_sendmsg+0xee/0x170
[ 4690.447269][   T73]      __sys_sendmsg+0xcd/0x170
[ 4690.447269][   T73]      do_syscall_64+0xc6/0x1e0
[ 4690.447269][   T73] 
[ 4690.449577][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4690.449577][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4690.449577][   T73]      ipv6_find_idev+0x102/0x170
[ 4690.449577][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4690.449577][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4690.449577][   T73]      netlink_rcv_skb+0x130/0x360
[ 4690.449577][   T73]      netlink_unicast+0x449/0x710
[ 4690.449577][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4690.449577][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4690.449577][   T73]      ___sys_sendmsg+0xee/0x170
[ 4690.449577][   T73]      __sys_sendmsg+0xcd/0x170
[ 4690.449577][   T73]      do_syscall_64+0xc6/0x1e0
[ 4690.449577][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4690.449577][   T73] 
[ 4690.451329][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4690.451329][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4690.451329][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4690.451329][   T73]      ipv6_find_idev+0x102/0x170
[ 4690.451329][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4690.451329][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4690.451329][   T73]      netlink_rcv_skb+0x130/0x360
[ 4690.451329][   T73]      netlink_unicast+0x449/0x710
[ 4690.451329][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4690.451329][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4690.451329][   T73]      ___sys_sendmsg+0xee/0x170
[ 4690.451329][   T73]      __sys_sendmsg+0xcd/0x170
[ 4690.451329][   T73]      do_syscall_64+0xc6/0x1e0
[ 4690.451329][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4690.451329][   T73] 
[ 4700.695764][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4700.696235][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4700.696235][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4700.696235][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4700.696235][   T73]      fib6_nh_init+0xa22/0x1580
[ 4700.696235][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4700.696235][   T73]      ip6_route_add+0x1c/0x140
[ 4700.696235][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4700.696235][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4700.696235][   T73]      netlink_rcv_skb+0x130/0x360
[ 4700.696235][   T73]      netlink_unicast+0x449/0x710
[ 4700.696235][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4700.696235][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4700.696235][   T73]      ___sys_sendmsg+0xee/0x170
[ 4700.696235][   T73]      __sys_sendmsg+0xcd/0x170
[ 4700.696235][   T73]      do_syscall_64+0xc6/0x1e0
[ 4700.696235][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4700.696235][   T73] 
[ 4700.698835][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4700.698835][   T73]      dst_init+0x84/0x4a0
[ 4700.698835][   T73]      dst_alloc+0x97/0x150
[ 4700.698835][   T73]      ip6_dst_alloc+0x23/0x90
[ 4700.698835][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4700.698835][   T73]      ip6_pol_route+0x56f/0x840
[ 4700.698835][   T73]      fib6_rule_lookup+0x456/0x630
[ 4700.698835][   T73]      ip6_route_input+0x59c/0xa50
[ 4700.698835][   T73]      ipv6_rcv+0x397/0x810
[ 4700.698835][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4700.698835][   T73]      process_backlog+0x101/0x620
[ 4700.698835][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4700.698835][   T73]      net_rx_action+0x495/0xbe0
[ 4700.698835][   T73]      __do_softirq+0x1b5/0x7f6
[ 4700.698835][   T73] 
[ 4700.700494][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4700.700494][   T73]      netdev_get_by_index+0x5e/0x80
[ 4700.700494][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4700.700494][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4700.700494][   T73]      ip6_route_add+0x1c/0x140
[ 4700.700494][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4700.700494][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4700.700494][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4700.700494][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4700.700494][   T73]      netlink_rcv_skb+0x130/0x360
[ 4700.700494][   T73]      netlink_unicast+0x449/0x710
[ 4700.700494][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4700.700494][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4700.700494][   T73]      ___sys_sendmsg+0xee/0x170
[ 4700.700494][   T73]      __sys_sendmsg+0xcd/0x170
[ 4700.700494][   T73]      do_syscall_64+0xc6/0x1e0
[ 4700.700494][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4700.700494][   T73] 
[ 4700.702514][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4700.702514][   T73]      netdev_get_by_index+0x5e/0x80
[ 4700.702514][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4700.702514][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4700.702514][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4700.702514][   T73]      ipv6_add_addr+0x411/0x2000
[ 4700.702514][   T73]      inet6_addr_add+0x30e/0xa40
[ 4700.702514][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4700.702514][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4700.702514][   T73]      netlink_rcv_skb+0x130/0x360
[ 4700.702514][   T73]      netlink_unicast+0x449/0x710
[ 4700.702514][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4700.702514][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4700.702514][   T73]      ___sys_sendmsg+0xee/0x170
[ 4700.702514][   T73]      __sys_sendmsg+0xcd/0x170
[ 4700.702514][   T73]      do_syscall_64+0xc6/0x1e0
[ 4700.702514][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4700.702514][   T73] 
[ 4700.704549][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4700.704549][   T73]      netdev_get_by_index+0x5e/0x80
[ 4700.704549][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4700.704549][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4700.704549][   T73]      ip6_route_add+0x1c/0x140
[ 4700.704549][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4700.704549][   T73]      addrconf_add_dev+0xe2/0x170
[ 4700.704549][   T73]      inet6_addr_add+0x12f/0xa40
[ 4700.704549][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4700.704549][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4700.704549][   T73]      netlink_rcv_skb+0x130/0x360
[ 4700.704549][   T73]      netlink_unicast+0x449/0x710
[ 4700.704549][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4700.704549][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4700.704549][   T73]      ___sys_sendmsg+0xee/0x170
[ 4700.704549][   T73]      __sys_sendmsg+0xcd/0x170
[ 4700.704549][   T73]      do_syscall_64+0xc6/0x1e0
[ 4700.704549][   T73] 
[ 4700.706523][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4700.706523][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4700.706523][   T73]      ipv6_find_idev+0x102/0x170
[ 4700.706523][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4700.706523][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4700.706523][   T73]      netlink_rcv_skb+0x130/0x360
[ 4700.706523][   T73]      netlink_unicast+0x449/0x710
[ 4700.706523][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4700.706523][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4700.706523][   T73]      ___sys_sendmsg+0xee/0x170
[ 4700.706523][   T73]      __sys_sendmsg+0xcd/0x170
[ 4700.706523][   T73]      do_syscall_64+0xc6/0x1e0
[ 4700.706523][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4700.706523][   T73] 
[ 4700.708067][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4700.708067][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4700.708067][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4700.708067][   T73]      ipv6_find_idev+0x102/0x170
[ 4700.708067][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4700.708067][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4700.708067][   T73]      netlink_rcv_skb+0x130/0x360
[ 4700.708067][   T73]      netlink_unicast+0x449/0x710
[ 4700.708067][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4700.708067][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4700.708067][   T73]      ___sys_sendmsg+0xee/0x170
[ 4700.708067][   T73]      __sys_sendmsg+0xcd/0x170
[ 4700.708067][   T73]      do_syscall_64+0xc6/0x1e0
[ 4700.708067][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4700.708067][   T73] 
[ 4700.709779][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4700.710055][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4700.710055][   T73]      netdev_get_by_index+0x5e/0x80
[ 4700.710055][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4700.710055][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4700.710055][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4700.710055][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4700.710055][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4700.710055][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4700.710055][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4700.710055][   T73]      addrconf_dad_begin+0x310/0x670
[ 4700.710055][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4700.710055][   T73]      process_one_work+0x84d/0x18a0
[ 4700.710055][   T73]      worker_thread+0x587/0xd30
[ 4700.710055][   T73]      kthread+0x28a/0x350
[ 4700.710055][   T73]      ret_from_fork+0x31/0x70
[ 4700.710055][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4700.710055][   T73] 
[ 4700.711989][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4700.711989][   T73]      netdev_get_by_index+0x5e/0x80
[ 4700.711989][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4700.711989][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4700.711989][   T73]      ip6_route_add+0x1c/0x140
[ 4700.711989][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4700.711989][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4700.711989][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4700.711989][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4700.711989][   T73]      netlink_rcv_skb+0x130/0x360
[ 4700.711989][   T73]      netlink_unicast+0x449/0x710
[ 4700.711989][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4700.711989][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4700.711989][   T73]      ___sys_sendmsg+0xee/0x170
[ 4700.711989][   T73]      __sys_sendmsg+0xcd/0x170
[ 4700.711989][   T73]      do_syscall_64+0xc6/0x1e0
[ 4700.711989][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4700.711989][   T73] 
[ 4700.714022][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4700.714022][   T73]      netdev_get_by_index+0x5e/0x80
[ 4700.714022][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4700.714022][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4700.714022][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4700.714022][   T73]      ipv6_add_addr+0x411/0x2000
[ 4700.714022][   T73]      inet6_addr_add+0x30e/0xa40
[ 4700.714022][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4700.714022][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4700.714022][   T73]      netlink_rcv_skb+0x130/0x360
[ 4700.714022][   T73]      netlink_unicast+0x449/0x710
[ 4700.714022][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4700.714022][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4700.714022][   T73]      ___sys_sendmsg+0xee/0x170
[ 4700.714022][   T73]      __sys_sendmsg+0xcd/0x170
[ 4700.714022][   T73]      do_syscall_64+0xc6/0x1e0
[ 4700.714022][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4700.714022][   T73] 
[ 4700.716056][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4700.716056][   T73]      netdev_get_by_index+0x5e/0x80
[ 4700.716056][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4700.716056][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4700.716056][   T73]      ip6_route_add+0x1c/0x140
[ 4700.716056][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4700.716056][   T73]      addrconf_add_dev+0xe2/0x170
[ 4700.716056][   T73]      inet6_addr_add+0x12f/0xa40
[ 4700.716056][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4700.716056][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4700.716056][   T73]      netlink_rcv_skb+0x130/0x360
[ 4700.716056][   T73]      netlink_unicast+0x449/0x710
[ 4700.716056][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4700.716056][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4700.716056][   T73]      ___sys_sendmsg+0xee/0x170
[ 4700.716056][   T73]      __sys_sendmsg+0xcd/0x170
[ 4700.716056][   T73]      do_syscall_64+0xc6/0x1e0
[ 4700.716056][   T73] 
[ 4700.718042][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4700.718042][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4700.718042][   T73]      ipv6_find_idev+0x102/0x170
[ 4700.718042][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4700.718042][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4700.718042][   T73]      netlink_rcv_skb+0x130/0x360
[ 4700.718042][   T73]      netlink_unicast+0x449/0x710
[ 4700.718042][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4700.718042][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4700.718042][   T73]      ___sys_sendmsg+0xee/0x170
[ 4700.718042][   T73]      __sys_sendmsg+0xcd/0x170
[ 4700.718042][   T73]      do_syscall_64+0xc6/0x1e0
[ 4700.718042][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4700.718042][   T73] 
[ 4700.719599][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4700.719599][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4700.719599][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4700.719599][   T73]      ipv6_find_idev+0x102/0x170
[ 4700.719599][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4700.719599][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4700.719599][   T73]      netlink_rcv_skb+0x130/0x360
[ 4700.719599][   T73]      netlink_unicast+0x449/0x710
[ 4700.719599][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4700.719599][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4700.719599][   T73]      ___sys_sendmsg+0xee/0x170
[ 4700.719599][   T73]      __sys_sendmsg+0xcd/0x170
[ 4700.719599][   T73]      do_syscall_64+0xc6/0x1e0
[ 4700.719599][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4700.719599][   T73] 
[ 4700.721298][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4700.721574][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4700.721574][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4700.721574][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4700.721574][   T73]      fib6_nh_init+0xa22/0x1580
[ 4700.721574][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4700.721574][   T73]      ip6_route_add+0x1c/0x140
[ 4700.721574][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4700.721574][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4700.721574][   T73]      netlink_rcv_skb+0x130/0x360
[ 4700.721574][   T73]      netlink_unicast+0x449/0x710
[ 4700.721574][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4700.721574][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4700.721574][   T73]      ___sys_sendmsg+0xee/0x170
[ 4700.721574][   T73]      __sys_sendmsg+0xcd/0x170
[ 4700.721574][   T73]      do_syscall_64+0xc6/0x1e0
[ 4700.721574][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4700.721574][   T73] 
[ 4700.723677][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4700.723677][   T73]      dst_init+0x84/0x4a0
[ 4700.723677][   T73]      dst_alloc+0x97/0x150
[ 4700.723677][   T73]      ip6_dst_alloc+0x23/0x90
[ 4700.723677][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4700.723677][   T73]      ip6_pol_route+0x56f/0x840
[ 4700.723677][   T73]      fib6_rule_lookup+0x456/0x630
[ 4700.723677][   T73]      ip6_route_input+0x59c/0xa50
[ 4700.723677][   T73]      ipv6_rcv+0x397/0x810
[ 4700.723677][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4700.723677][   T73]      process_backlog+0x101/0x620
[ 4700.723677][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4700.723677][   T73]      net_rx_action+0x495/0xbe0
[ 4700.723677][   T73]      __do_softirq+0x1b5/0x7f6
[ 4700.723677][   T73] 
[ 4700.725530][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4700.725530][   T73]      netdev_get_by_index+0x5e/0x80
[ 4700.725530][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4700.725530][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4700.725530][   T73]      ip6_route_add+0x1c/0x140
[ 4700.725530][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4700.725530][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4700.725530][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4700.725530][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4700.725530][   T73]      netlink_rcv_skb+0x130/0x360
[ 4700.725530][   T73]      netlink_unicast+0x449/0x710
[ 4700.725530][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4700.725530][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4700.725530][   T73]      ___sys_sendmsg+0xee/0x170
[ 4700.725530][   T73]      __sys_sendmsg+0xcd/0x170
[ 4700.725530][   T73]      do_syscall_64+0xc6/0x1e0
[ 4700.725530][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4700.725530][   T73] 
[ 4700.727788][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4700.727788][   T73]      netdev_get_by_index+0x5e/0x80
[ 4700.727788][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4700.727788][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4700.727788][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4700.727788][   T73]      ipv6_add_addr+0x411/0x2000
[ 4700.727788][   T73]      inet6_addr_add+0x30e/0xa40
[ 4700.727788][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4700.727788][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4700.727788][   T73]      netlink_rcv_skb+0x130/0x360
[ 4700.727788][   T73]      netlink_unicast+0x449/0x710
[ 4700.727788][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4700.727788][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4700.727788][   T73]      ___sys_sendmsg+0xee/0x170
[ 4700.727788][   T73]      __sys_sendmsg+0xcd/0x170
[ 4700.727788][   T73]      do_syscall_64+0xc6/0x1e0
[ 4700.727788][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4700.727788][   T73] 
[ 4700.730080][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4700.730080][   T73]      netdev_get_by_index+0x5e/0x80
[ 4700.730080][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4700.730080][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4700.730080][   T73]      ip6_route_add+0x1c/0x140
[ 4700.730080][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4700.730080][   T73]      addrconf_add_dev+0xe2/0x170
[ 4700.730080][   T73]      inet6_addr_add+0x12f/0xa40
[ 4700.730080][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4700.730080][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4700.730080][   T73]      netlink_rcv_skb+0x130/0x360
[ 4700.730080][   T73]      netlink_unicast+0x449/0x710
[ 4700.730080][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4700.730080][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4700.730080][   T73]      ___sys_sendmsg+0xee/0x170
[ 4700.730080][   T73]      __sys_sendmsg+0xcd/0x170
[ 4700.730080][   T73]      do_syscall_64+0xc6/0x1e0
[ 4700.730080][   T73] 
[ 4700.732327][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4700.732327][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4700.732327][   T73]      ipv6_find_idev+0x102/0x170
[ 4700.732327][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4700.732327][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4700.732327][   T73]      netlink_rcv_skb+0x130/0x360
[ 4700.732327][   T73]      netlink_unicast+0x449/0x710
[ 4700.732327][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4700.732327][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4700.732327][   T73]      ___sys_sendmsg+0xee/0x170
[ 4700.732327][   T73]      __sys_sendmsg+0xcd/0x170
[ 4700.732327][   T73]      do_syscall_64+0xc6/0x1e0
[ 4700.732327][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4700.732327][   T73] 
[ 4700.734080][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4700.734080][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4700.734080][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4700.734080][   T73]      ipv6_find_idev+0x102/0x170
[ 4700.734080][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4700.734080][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4700.734080][   T73]      netlink_rcv_skb+0x130/0x360
[ 4700.734080][   T73]      netlink_unicast+0x449/0x710
[ 4700.734080][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4700.734080][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4700.734080][   T73]      ___sys_sendmsg+0xee/0x170
[ 4700.734080][   T73]      __sys_sendmsg+0xcd/0x170
[ 4700.734080][   T73]      do_syscall_64+0xc6/0x1e0
[ 4700.734080][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4700.734080][   T73] 
[ 4700.735968][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4700.736330][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4700.736330][   T73]      netdev_get_by_index+0x5e/0x80
[ 4700.736330][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4700.736330][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4700.736330][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4700.736330][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4700.736330][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4700.736330][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4700.736330][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4700.736330][   T73]      addrconf_dad_begin+0x310/0x670
[ 4700.736330][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4700.736330][   T73]      process_one_work+0x84d/0x18a0
[ 4700.736330][   T73]      worker_thread+0x587/0xd30
[ 4700.736330][   T73]      kthread+0x28a/0x350
[ 4700.736330][   T73]      ret_from_fork+0x31/0x70
[ 4700.736330][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4700.736330][   T73] 
[ 4700.738374][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4700.738374][   T73]      netdev_get_by_index+0x5e/0x80
[ 4700.738374][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4700.738374][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4700.738374][   T73]      ip6_route_add+0x1c/0x140
[ 4700.738374][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4700.738374][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4700.738374][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4700.738374][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4700.738374][   T73]      netlink_rcv_skb+0x130/0x360
[ 4700.738374][   T73]      netlink_unicast+0x449/0x710
[ 4700.738374][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4700.738374][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4700.738374][   T73]      ___sys_sendmsg+0xee/0x170
[ 4700.738374][   T73]      __sys_sendmsg+0xcd/0x170
[ 4700.738374][   T73]      do_syscall_64+0xc6/0x1e0
[ 4700.738374][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4700.738374][   T73] 
[ 4700.740688][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4700.740688][   T73]      netdev_get_by_index+0x5e/0x80
[ 4700.740688][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4700.740688][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4700.740688][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4700.740688][   T73]      ipv6_add_addr+0x411/0x2000
[ 4700.740688][   T73]      inet6_addr_add+0x30e/0xa40
[ 4700.740688][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4700.740688][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4700.740688][   T73]      netlink_rcv_skb+0x130/0x360
[ 4700.740688][   T73]      netlink_unicast+0x449/0x710
[ 4700.740688][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4700.740688][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4700.740688][   T73]      ___sys_sendmsg+0xee/0x170
[ 4700.740688][   T73]      __sys_sendmsg+0xcd/0x170
[ 4700.740688][   T73]      do_syscall_64+0xc6/0x1e0
[ 4700.740688][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4700.740688][   T73] 
[ 4700.742977][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4700.742977][   T73]      netdev_get_by_index+0x5e/0x80
[ 4700.742977][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4700.742977][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4700.742977][   T73]      ip6_route_add+0x1c/0x140
[ 4700.742977][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4700.742977][   T73]      addrconf_add_dev+0xe2/0x170
[ 4700.742977][   T73]      inet6_addr_add+0x12f/0xa40
[ 4700.742977][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4700.742977][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4700.742977][   T73]      netlink_rcv_skb+0x130/0x360
[ 4700.742977][   T73]      netlink_unicast+0x449/0x710
[ 4700.742977][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4700.742977][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4700.742977][   T73]      ___sys_sendmsg+0xee/0x170
[ 4700.742977][   T73]      __sys_sendmsg+0xcd/0x170
[ 4700.742977][   T73]      do_syscall_64+0xc6/0x1e0
[ 4700.742977][   T73] 
[ 4700.745208][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4700.745208][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4700.745208][   T73]      ipv6_find_idev+0x102/0x170
[ 4700.745208][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4700.745208][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4700.745208][   T73]      netlink_rcv_skb+0x130/0x360
[ 4700.745208][   T73]      netlink_unicast+0x449/0x710
[ 4700.745208][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4700.745208][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4700.745208][   T73]      ___sys_sendmsg+0xee/0x170
[ 4700.745208][   T73]      __sys_sendmsg+0xcd/0x170
[ 4700.745208][   T73]      do_syscall_64+0xc6/0x1e0
[ 4700.745208][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4700.745208][   T73] 
[ 4700.746943][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4700.746943][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4700.746943][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4700.746943][   T73]      ipv6_find_idev+0x102/0x170
[ 4700.746943][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4700.746943][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4700.746943][   T73]      netlink_rcv_skb+0x130/0x360
[ 4700.746943][   T73]      netlink_unicast+0x449/0x710
[ 4700.746943][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4700.746943][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4700.746943][   T73]      ___sys_sendmsg+0xee/0x170
[ 4700.746943][   T73]      __sys_sendmsg+0xcd/0x170
[ 4700.746943][   T73]      do_syscall_64+0xc6/0x1e0
[ 4700.746943][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4700.746943][   T73] 
[ 4710.991699][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4710.992178][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4710.992178][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4710.992178][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4710.992178][   T73]      fib6_nh_init+0xa22/0x1580
[ 4710.992178][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4710.992178][   T73]      ip6_route_add+0x1c/0x140
[ 4710.992178][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4710.992178][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4710.992178][   T73]      netlink_rcv_skb+0x130/0x360
[ 4710.992178][   T73]      netlink_unicast+0x449/0x710
[ 4710.992178][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4710.992178][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4710.992178][   T73]      ___sys_sendmsg+0xee/0x170
[ 4710.992178][   T73]      __sys_sendmsg+0xcd/0x170
[ 4710.992178][   T73]      do_syscall_64+0xc6/0x1e0
[ 4710.992178][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4710.992178][   T73] 
[ 4710.994152][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4710.994152][   T73]      dst_init+0x84/0x4a0
[ 4710.994152][   T73]      dst_alloc+0x97/0x150
[ 4710.994152][   T73]      ip6_dst_alloc+0x23/0x90
[ 4710.994152][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4710.994152][   T73]      ip6_pol_route+0x56f/0x840
[ 4710.994152][   T73]      fib6_rule_lookup+0x456/0x630
[ 4710.994152][   T73]      ip6_route_input+0x59c/0xa50
[ 4710.994152][   T73]      ipv6_rcv+0x397/0x810
[ 4710.994152][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4710.994152][   T73]      process_backlog+0x101/0x620
[ 4710.994152][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4710.994152][   T73]      net_rx_action+0x495/0xbe0
[ 4710.994152][   T73]      __do_softirq+0x1b5/0x7f6
[ 4710.994152][   T73] 
[ 4710.995856][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4710.995856][   T73]      netdev_get_by_index+0x5e/0x80
[ 4710.995856][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4710.995856][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4710.995856][   T73]      ip6_route_add+0x1c/0x140
[ 4710.995856][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4710.995856][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4710.995856][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4710.995856][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4710.995856][   T73]      netlink_rcv_skb+0x130/0x360
[ 4710.995856][   T73]      netlink_unicast+0x449/0x710
[ 4710.995856][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4710.995856][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4710.995856][   T73]      ___sys_sendmsg+0xee/0x170
[ 4710.995856][   T73]      __sys_sendmsg+0xcd/0x170
[ 4710.995856][   T73]      do_syscall_64+0xc6/0x1e0
[ 4710.995856][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4710.995856][   T73] 
[ 4710.997955][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4710.997955][   T73]      netdev_get_by_index+0x5e/0x80
[ 4710.997955][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4710.997955][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4710.997955][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4710.997955][   T73]      ipv6_add_addr+0x411/0x2000
[ 4710.997955][   T73]      inet6_addr_add+0x30e/0xa40
[ 4710.997955][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4710.997955][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4710.997955][   T73]      netlink_rcv_skb+0x130/0x360
[ 4710.997955][   T73]      netlink_unicast+0x449/0x710
[ 4710.997955][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4710.997955][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4710.997955][   T73]      ___sys_sendmsg+0xee/0x170
[ 4710.997955][   T73]      __sys_sendmsg+0xcd/0x170
[ 4710.997955][   T73]      do_syscall_64+0xc6/0x1e0
[ 4710.997955][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4710.997955][   T73] 
[ 4711.000009][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4711.000009][   T73]      netdev_get_by_index+0x5e/0x80
[ 4711.000009][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4711.000009][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4711.000009][   T73]      ip6_route_add+0x1c/0x140
[ 4711.000009][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4711.000009][   T73]      addrconf_add_dev+0xe2/0x170
[ 4711.000009][   T73]      inet6_addr_add+0x12f/0xa40
[ 4711.000009][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4711.000009][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4711.000009][   T73]      netlink_rcv_skb+0x130/0x360
[ 4711.000009][   T73]      netlink_unicast+0x449/0x710
[ 4711.000009][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4711.000009][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4711.000009][   T73]      ___sys_sendmsg+0xee/0x170
[ 4711.000009][   T73]      __sys_sendmsg+0xcd/0x170
[ 4711.000009][   T73]      do_syscall_64+0xc6/0x1e0
[ 4711.000009][   T73] 
[ 4711.002017][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4711.002017][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4711.002017][   T73]      ipv6_find_idev+0x102/0x170
[ 4711.002017][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4711.002017][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4711.002017][   T73]      netlink_rcv_skb+0x130/0x360
[ 4711.002017][   T73]      netlink_unicast+0x449/0x710
[ 4711.002017][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4711.002017][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4711.002017][   T73]      ___sys_sendmsg+0xee/0x170
[ 4711.002017][   T73]      __sys_sendmsg+0xcd/0x170
[ 4711.002017][   T73]      do_syscall_64+0xc6/0x1e0
[ 4711.002017][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4711.002017][   T73] 
[ 4711.003589][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4711.003589][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4711.003589][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4711.003589][   T73]      ipv6_find_idev+0x102/0x170
[ 4711.003589][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4711.003589][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4711.003589][   T73]      netlink_rcv_skb+0x130/0x360
[ 4711.003589][   T73]      netlink_unicast+0x449/0x710
[ 4711.003589][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4711.003589][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4711.003589][   T73]      ___sys_sendmsg+0xee/0x170
[ 4711.003589][   T73]      __sys_sendmsg+0xcd/0x170
[ 4711.003589][   T73]      do_syscall_64+0xc6/0x1e0
[ 4711.003589][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4711.003589][   T73] 
[ 4711.005317][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4711.005598][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4711.005598][   T73]      netdev_get_by_index+0x5e/0x80
[ 4711.005598][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4711.005598][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4711.005598][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4711.005598][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4711.005598][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4711.005598][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4711.005598][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4711.005598][   T73]      addrconf_dad_begin+0x310/0x670
[ 4711.005598][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4711.005598][   T73]      process_one_work+0x84d/0x18a0
[ 4711.005598][   T73]      worker_thread+0x587/0xd30
[ 4711.005598][   T73]      kthread+0x28a/0x350
[ 4711.005598][   T73]      ret_from_fork+0x31/0x70
[ 4711.005598][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4711.005598][   T73] 
[ 4711.007561][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4711.007561][   T73]      netdev_get_by_index+0x5e/0x80
[ 4711.007561][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4711.007561][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4711.007561][   T73]      ip6_route_add+0x1c/0x140
[ 4711.007561][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4711.007561][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4711.007561][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4711.007561][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4711.007561][   T73]      netlink_rcv_skb+0x130/0x360
[ 4711.007561][   T73]      netlink_unicast+0x449/0x710
[ 4711.007561][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4711.007561][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4711.007561][   T73]      ___sys_sendmsg+0xee/0x170
[ 4711.007561][   T73]      __sys_sendmsg+0xcd/0x170
[ 4711.007561][   T73]      do_syscall_64+0xc6/0x1e0
[ 4711.007561][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4711.007561][   T73] 
[ 4711.009599][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4711.009599][   T73]      netdev_get_by_index+0x5e/0x80
[ 4711.009599][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4711.009599][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4711.009599][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4711.009599][   T73]      ipv6_add_addr+0x411/0x2000
[ 4711.009599][   T73]      inet6_addr_add+0x30e/0xa40
[ 4711.009599][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4711.009599][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4711.009599][   T73]      netlink_rcv_skb+0x130/0x360
[ 4711.009599][   T73]      netlink_unicast+0x449/0x710
[ 4711.009599][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4711.009599][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4711.009599][   T73]      ___sys_sendmsg+0xee/0x170
[ 4711.009599][   T73]      __sys_sendmsg+0xcd/0x170
[ 4711.009599][   T73]      do_syscall_64+0xc6/0x1e0
[ 4711.009599][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4711.009599][   T73] 
[ 4711.011639][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4711.011639][   T73]      netdev_get_by_index+0x5e/0x80
[ 4711.011639][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4711.011639][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4711.011639][   T73]      ip6_route_add+0x1c/0x140
[ 4711.011639][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4711.011639][   T73]      addrconf_add_dev+0xe2/0x170
[ 4711.011639][   T73]      inet6_addr_add+0x12f/0xa40
[ 4711.011639][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4711.011639][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4711.011639][   T73]      netlink_rcv_skb+0x130/0x360
[ 4711.011639][   T73]      netlink_unicast+0x449/0x710
[ 4711.011639][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4711.011639][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4711.011639][   T73]      ___sys_sendmsg+0xee/0x170
[ 4711.011639][   T73]      __sys_sendmsg+0xcd/0x170
[ 4711.011639][   T73]      do_syscall_64+0xc6/0x1e0
[ 4711.011639][   T73] 
[ 4711.013657][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4711.013657][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4711.013657][   T73]      ipv6_find_idev+0x102/0x170
[ 4711.013657][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4711.013657][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4711.013657][   T73]      netlink_rcv_skb+0x130/0x360
[ 4711.013657][   T73]      netlink_unicast+0x449/0x710
[ 4711.013657][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4711.013657][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4711.013657][   T73]      ___sys_sendmsg+0xee/0x170
[ 4711.013657][   T73]      __sys_sendmsg+0xcd/0x170
[ 4711.013657][   T73]      do_syscall_64+0xc6/0x1e0
[ 4711.013657][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4711.013657][   T73] 
[ 4711.015221][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4711.015221][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4711.015221][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4711.015221][   T73]      ipv6_find_idev+0x102/0x170
[ 4711.015221][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4711.015221][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4711.015221][   T73]      netlink_rcv_skb+0x130/0x360
[ 4711.015221][   T73]      netlink_unicast+0x449/0x710
[ 4711.015221][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4711.015221][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4711.015221][   T73]      ___sys_sendmsg+0xee/0x170
[ 4711.015221][   T73]      __sys_sendmsg+0xcd/0x170
[ 4711.015221][   T73]      do_syscall_64+0xc6/0x1e0
[ 4711.015221][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4711.015221][   T73] 
[ 4711.016969][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4711.017270][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4711.017270][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4711.017270][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4711.017270][   T73]      fib6_nh_init+0xa22/0x1580
[ 4711.017270][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4711.017270][   T73]      ip6_route_add+0x1c/0x140
[ 4711.017270][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4711.017270][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4711.017270][   T73]      netlink_rcv_skb+0x130/0x360
[ 4711.017270][   T73]      netlink_unicast+0x449/0x710
[ 4711.017270][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4711.017270][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4711.017270][   T73]      ___sys_sendmsg+0xee/0x170
[ 4711.017270][   T73]      __sys_sendmsg+0xcd/0x170
[ 4711.017270][   T73]      do_syscall_64+0xc6/0x1e0
[ 4711.017270][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4711.017270][   T73] 
[ 4711.019364][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4711.019364][   T73]      dst_init+0x84/0x4a0
[ 4711.019364][   T73]      dst_alloc+0x97/0x150
[ 4711.019364][   T73]      ip6_dst_alloc+0x23/0x90
[ 4711.019364][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4711.019364][   T73]      ip6_pol_route+0x56f/0x840
[ 4711.019364][   T73]      fib6_rule_lookup+0x456/0x630
[ 4711.019364][   T73]      ip6_route_input+0x59c/0xa50
[ 4711.019364][   T73]      ipv6_rcv+0x397/0x810
[ 4711.019364][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4711.019364][   T73]      process_backlog+0x101/0x620
[ 4711.019364][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4711.019364][   T73]      net_rx_action+0x495/0xbe0
[ 4711.019364][   T73]      __do_softirq+0x1b5/0x7f6
[ 4711.019364][   T73] 
[ 4711.021202][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4711.021202][   T73]      netdev_get_by_index+0x5e/0x80
[ 4711.021202][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4711.021202][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4711.021202][   T73]      ip6_route_add+0x1c/0x140
[ 4711.021202][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4711.021202][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4711.021202][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4711.021202][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4711.021202][   T73]      netlink_rcv_skb+0x130/0x360
[ 4711.021202][   T73]      netlink_unicast+0x449/0x710
[ 4711.021202][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4711.021202][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4711.021202][   T73]      ___sys_sendmsg+0xee/0x170
[ 4711.021202][   T73]      __sys_sendmsg+0xcd/0x170
[ 4711.021202][   T73]      do_syscall_64+0xc6/0x1e0
[ 4711.021202][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4711.021202][   T73] 
[ 4711.023432][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4711.023432][   T73]      netdev_get_by_index+0x5e/0x80
[ 4711.023432][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4711.023432][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4711.023432][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4711.023432][   T73]      ipv6_add_addr+0x411/0x2000
[ 4711.023432][   T73]      inet6_addr_add+0x30e/0xa40
[ 4711.023432][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4711.023432][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4711.023432][   T73]      netlink_rcv_skb+0x130/0x360
[ 4711.023432][   T73]      netlink_unicast+0x449/0x710
[ 4711.023432][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4711.023432][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4711.023432][   T73]      ___sys_sendmsg+0xee/0x170
[ 4711.023432][   T73]      __sys_sendmsg+0xcd/0x170
[ 4711.023432][   T73]      do_syscall_64+0xc6/0x1e0
[ 4711.023432][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4711.023432][   T73] 
[ 4711.025556][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4711.025556][   T73]      netdev_get_by_index+0x5e/0x80
[ 4711.025556][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4711.025556][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4711.025556][   T73]      ip6_route_add+0x1c/0x140
[ 4711.025556][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4711.025556][   T73]      addrconf_add_dev+0xe2/0x170
[ 4711.025556][   T73]      inet6_addr_add+0x12f/0xa40
[ 4711.025556][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4711.025556][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4711.025556][   T73]      netlink_rcv_skb+0x130/0x360
[ 4711.025556][   T73]      netlink_unicast+0x449/0x710
[ 4711.025556][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4711.025556][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4711.025556][   T73]      ___sys_sendmsg+0xee/0x170
[ 4711.025556][   T73]      __sys_sendmsg+0xcd/0x170
[ 4711.025556][   T73]      do_syscall_64+0xc6/0x1e0
[ 4711.025556][   T73] 
[ 4711.027736][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4711.027736][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4711.027736][   T73]      ipv6_find_idev+0x102/0x170
[ 4711.027736][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4711.027736][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4711.027736][   T73]      netlink_rcv_skb+0x130/0x360
[ 4711.027736][   T73]      netlink_unicast+0x449/0x710
[ 4711.027736][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4711.027736][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4711.027736][   T73]      ___sys_sendmsg+0xee/0x170
[ 4711.027736][   T73]      __sys_sendmsg+0xcd/0x170
[ 4711.027736][   T73]      do_syscall_64+0xc6/0x1e0
[ 4711.027736][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4711.027736][   T73] 
[ 4711.029484][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4711.029484][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4711.029484][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4711.029484][   T73]      ipv6_find_idev+0x102/0x170
[ 4711.029484][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4711.029484][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4711.029484][   T73]      netlink_rcv_skb+0x130/0x360
[ 4711.029484][   T73]      netlink_unicast+0x449/0x710
[ 4711.029484][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4711.029484][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4711.029484][   T73]      ___sys_sendmsg+0xee/0x170
[ 4711.029484][   T73]      __sys_sendmsg+0xcd/0x170
[ 4711.029484][   T73]      do_syscall_64+0xc6/0x1e0
[ 4711.029484][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4711.029484][   T73] 
[ 4711.031282][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4711.031644][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4711.031644][   T73]      netdev_get_by_index+0x5e/0x80
[ 4711.031644][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4711.031644][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4711.031644][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4711.031644][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4711.031644][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4711.031644][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4711.031644][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4711.031644][   T73]      addrconf_dad_begin+0x310/0x670
[ 4711.031644][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4711.031644][   T73]      process_one_work+0x84d/0x18a0
[ 4711.031644][   T73]      worker_thread+0x587/0xd30
[ 4711.031644][   T73]      kthread+0x28a/0x350
[ 4711.031644][   T73]      ret_from_fork+0x31/0x70
[ 4711.031644][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4711.031644][   T73] 
[ 4711.033683][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4711.033683][   T73]      netdev_get_by_index+0x5e/0x80
[ 4711.033683][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4711.033683][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4711.033683][   T73]      ip6_route_add+0x1c/0x140
[ 4711.033683][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4711.033683][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4711.033683][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4711.033683][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4711.033683][   T73]      netlink_rcv_skb+0x130/0x360
[ 4711.033683][   T73]      netlink_unicast+0x449/0x710
[ 4711.033683][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4711.033683][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4711.033683][   T73]      ___sys_sendmsg+0xee/0x170
[ 4711.033683][   T73]      __sys_sendmsg+0xcd/0x170
[ 4711.033683][   T73]      do_syscall_64+0xc6/0x1e0
[ 4711.033683][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4711.033683][   T73] 
[ 4711.035884][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4711.035884][   T73]      netdev_get_by_index+0x5e/0x80
[ 4711.035884][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4711.035884][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4711.035884][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4711.035884][   T73]      ipv6_add_addr+0x411/0x2000
[ 4711.035884][   T73]      inet6_addr_add+0x30e/0xa40
[ 4711.035884][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4711.035884][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4711.035884][   T73]      netlink_rcv_skb+0x130/0x360
[ 4711.035884][   T73]      netlink_unicast+0x449/0x710
[ 4711.035884][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4711.035884][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4711.035884][   T73]      ___sys_sendmsg+0xee/0x170
[ 4711.035884][   T73]      __sys_sendmsg+0xcd/0x170
[ 4711.035884][   T73]      do_syscall_64+0xc6/0x1e0
[ 4711.035884][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4711.035884][   T73] 
[ 4711.038058][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4711.038058][   T73]      netdev_get_by_index+0x5e/0x80
[ 4711.038058][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4711.038058][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4711.038058][   T73]      ip6_route_add+0x1c/0x140
[ 4711.038058][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4711.038058][   T73]      addrconf_add_dev+0xe2/0x170
[ 4711.038058][   T73]      inet6_addr_add+0x12f/0xa40
[ 4711.038058][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4711.038058][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4711.038058][   T73]      netlink_rcv_skb+0x130/0x360
[ 4711.038058][   T73]      netlink_unicast+0x449/0x710
[ 4711.038058][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4711.038058][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4711.038058][   T73]      ___sys_sendmsg+0xee/0x170
[ 4711.038058][   T73]      __sys_sendmsg+0xcd/0x170
[ 4711.038058][   T73]      do_syscall_64+0xc6/0x1e0
[ 4711.038058][   T73] 
[ 4711.040236][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4711.040236][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4711.040236][   T73]      ipv6_find_idev+0x102/0x170
[ 4711.040236][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4711.040236][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4711.040236][   T73]      netlink_rcv_skb+0x130/0x360
[ 4711.040236][   T73]      netlink_unicast+0x449/0x710
[ 4711.040236][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4711.040236][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4711.040236][   T73]      ___sys_sendmsg+0xee/0x170
[ 4711.040236][   T73]      __sys_sendmsg+0xcd/0x170
[ 4711.040236][   T73]      do_syscall_64+0xc6/0x1e0
[ 4711.040236][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4711.040236][   T73] 
[ 4711.041962][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4711.041962][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4711.041962][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4711.041962][   T73]      ipv6_find_idev+0x102/0x170
[ 4711.041962][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4711.041962][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4711.041962][   T73]      netlink_rcv_skb+0x130/0x360
[ 4711.041962][   T73]      netlink_unicast+0x449/0x710
[ 4711.041962][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4711.041962][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4711.041962][   T73]      ___sys_sendmsg+0xee/0x170
[ 4711.041962][   T73]      __sys_sendmsg+0xcd/0x170
[ 4711.041962][   T73]      do_syscall_64+0xc6/0x1e0
[ 4711.041962][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4711.041962][   T73] 
[ 4721.279686][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4721.280145][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4721.280145][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4721.280145][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4721.280145][   T73]      fib6_nh_init+0xa22/0x1580
[ 4721.280145][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4721.280145][   T73]      ip6_route_add+0x1c/0x140
[ 4721.280145][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4721.280145][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4721.280145][   T73]      netlink_rcv_skb+0x130/0x360
[ 4721.280145][   T73]      netlink_unicast+0x449/0x710
[ 4721.280145][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4721.280145][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4721.280145][   T73]      ___sys_sendmsg+0xee/0x170
[ 4721.280145][   T73]      __sys_sendmsg+0xcd/0x170
[ 4721.280145][   T73]      do_syscall_64+0xc6/0x1e0
[ 4721.280145][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4721.280145][   T73] 
[ 4721.282108][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4721.282108][   T73]      dst_init+0x84/0x4a0
[ 4721.282108][   T73]      dst_alloc+0x97/0x150
[ 4721.282108][   T73]      ip6_dst_alloc+0x23/0x90
[ 4721.282108][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4721.282108][   T73]      ip6_pol_route+0x56f/0x840
[ 4721.282108][   T73]      fib6_rule_lookup+0x456/0x630
[ 4721.282108][   T73]      ip6_route_input+0x59c/0xa50
[ 4721.282108][   T73]      ipv6_rcv+0x397/0x810
[ 4721.282108][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4721.282108][   T73]      process_backlog+0x101/0x620
[ 4721.282108][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4721.282108][   T73]      net_rx_action+0x495/0xbe0
[ 4721.282108][   T73]      __do_softirq+0x1b5/0x7f6
[ 4721.282108][   T73] 
[ 4721.283797][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4721.283797][   T73]      netdev_get_by_index+0x5e/0x80
[ 4721.283797][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4721.283797][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4721.283797][   T73]      ip6_route_add+0x1c/0x140
[ 4721.283797][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4721.283797][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4721.283797][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4721.283797][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4721.283797][   T73]      netlink_rcv_skb+0x130/0x360
[ 4721.283797][   T73]      netlink_unicast+0x449/0x710
[ 4721.283797][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4721.283797][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4721.283797][   T73]      ___sys_sendmsg+0xee/0x170
[ 4721.283797][   T73]      __sys_sendmsg+0xcd/0x170
[ 4721.283797][   T73]      do_syscall_64+0xc6/0x1e0
[ 4721.283797][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4721.283797][   T73] 
[ 4721.285849][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4721.285849][   T73]      netdev_get_by_index+0x5e/0x80
[ 4721.285849][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4721.285849][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4721.285849][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4721.285849][   T73]      ipv6_add_addr+0x411/0x2000
[ 4721.285849][   T73]      inet6_addr_add+0x30e/0xa40
[ 4721.285849][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4721.285849][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4721.285849][   T73]      netlink_rcv_skb+0x130/0x360
[ 4721.285849][   T73]      netlink_unicast+0x449/0x710
[ 4721.285849][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4721.285849][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4721.285849][   T73]      ___sys_sendmsg+0xee/0x170
[ 4721.285849][   T73]      __sys_sendmsg+0xcd/0x170
[ 4721.285849][   T73]      do_syscall_64+0xc6/0x1e0
[ 4721.285849][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4721.285849][   T73] 
[ 4721.287891][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4721.287891][   T73]      netdev_get_by_index+0x5e/0x80
[ 4721.287891][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4721.287891][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4721.287891][   T73]      ip6_route_add+0x1c/0x140
[ 4721.287891][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4721.287891][   T73]      addrconf_add_dev+0xe2/0x170
[ 4721.287891][   T73]      inet6_addr_add+0x12f/0xa40
[ 4721.287891][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4721.287891][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4721.287891][   T73]      netlink_rcv_skb+0x130/0x360
[ 4721.287891][   T73]      netlink_unicast+0x449/0x710
[ 4721.287891][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4721.287891][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4721.287891][   T73]      ___sys_sendmsg+0xee/0x170
[ 4721.287891][   T73]      __sys_sendmsg+0xcd/0x170
[ 4721.287891][   T73]      do_syscall_64+0xc6/0x1e0
[ 4721.287891][   T73] 
[ 4721.289896][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4721.289896][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4721.289896][   T73]      ipv6_find_idev+0x102/0x170
[ 4721.289896][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4721.289896][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4721.289896][   T73]      netlink_rcv_skb+0x130/0x360
[ 4721.289896][   T73]      netlink_unicast+0x449/0x710
[ 4721.289896][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4721.289896][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4721.289896][   T73]      ___sys_sendmsg+0xee/0x170
[ 4721.289896][   T73]      __sys_sendmsg+0xcd/0x170
[ 4721.289896][   T73]      do_syscall_64+0xc6/0x1e0
[ 4721.289896][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4721.289896][   T73] 
[ 4721.291464][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4721.291464][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4721.291464][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4721.291464][   T73]      ipv6_find_idev+0x102/0x170
[ 4721.291464][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4721.291464][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4721.291464][   T73]      netlink_rcv_skb+0x130/0x360
[ 4721.291464][   T73]      netlink_unicast+0x449/0x710
[ 4721.291464][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4721.291464][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4721.291464][   T73]      ___sys_sendmsg+0xee/0x170
[ 4721.291464][   T73]      __sys_sendmsg+0xcd/0x170
[ 4721.291464][   T73]      do_syscall_64+0xc6/0x1e0
[ 4721.291464][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4721.291464][   T73] 
[ 4721.293203][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4721.293479][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4721.293479][   T73]      netdev_get_by_index+0x5e/0x80
[ 4721.293479][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4721.293479][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4721.293479][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4721.293479][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4721.293479][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4721.293479][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4721.293479][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4721.293479][   T73]      addrconf_dad_begin+0x310/0x670
[ 4721.293479][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4721.293479][   T73]      process_one_work+0x84d/0x18a0
[ 4721.293479][   T73]      worker_thread+0x587/0xd30
[ 4721.293479][   T73]      kthread+0x28a/0x350
[ 4721.293479][   T73]      ret_from_fork+0x31/0x70
[ 4721.293479][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4721.293479][   T73] 
[ 4721.295442][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4721.295442][   T73]      netdev_get_by_index+0x5e/0x80
[ 4721.295442][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4721.295442][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4721.295442][   T73]      ip6_route_add+0x1c/0x140
[ 4721.295442][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4721.295442][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4721.295442][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4721.295442][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4721.295442][   T73]      netlink_rcv_skb+0x130/0x360
[ 4721.295442][   T73]      netlink_unicast+0x449/0x710
[ 4721.295442][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4721.295442][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4721.295442][   T73]      ___sys_sendmsg+0xee/0x170
[ 4721.295442][   T73]      __sys_sendmsg+0xcd/0x170
[ 4721.295442][   T73]      do_syscall_64+0xc6/0x1e0
[ 4721.295442][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4721.295442][   T73] 
[ 4721.297487][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4721.297487][   T73]      netdev_get_by_index+0x5e/0x80
[ 4721.297487][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4721.297487][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4721.297487][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4721.297487][   T73]      ipv6_add_addr+0x411/0x2000
[ 4721.297487][   T73]      inet6_addr_add+0x30e/0xa40
[ 4721.297487][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4721.297487][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4721.297487][   T73]      netlink_rcv_skb+0x130/0x360
[ 4721.297487][   T73]      netlink_unicast+0x449/0x710
[ 4721.297487][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4721.297487][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4721.297487][   T73]      ___sys_sendmsg+0xee/0x170
[ 4721.297487][   T73]      __sys_sendmsg+0xcd/0x170
[ 4721.297487][   T73]      do_syscall_64+0xc6/0x1e0
[ 4721.297487][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4721.297487][   T73] 
[ 4721.299536][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4721.299536][   T73]      netdev_get_by_index+0x5e/0x80
[ 4721.299536][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4721.299536][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4721.299536][   T73]      ip6_route_add+0x1c/0x140
[ 4721.299536][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4721.299536][   T73]      addrconf_add_dev+0xe2/0x170
[ 4721.299536][   T73]      inet6_addr_add+0x12f/0xa40
[ 4721.299536][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4721.299536][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4721.299536][   T73]      netlink_rcv_skb+0x130/0x360
[ 4721.299536][   T73]      netlink_unicast+0x449/0x710
[ 4721.299536][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4721.299536][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4721.299536][   T73]      ___sys_sendmsg+0xee/0x170
[ 4721.299536][   T73]      __sys_sendmsg+0xcd/0x170
[ 4721.299536][   T73]      do_syscall_64+0xc6/0x1e0
[ 4721.299536][   T73] 
[ 4721.301535][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4721.301535][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4721.301535][   T73]      ipv6_find_idev+0x102/0x170
[ 4721.301535][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4721.301535][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4721.301535][   T73]      netlink_rcv_skb+0x130/0x360
[ 4721.301535][   T73]      netlink_unicast+0x449/0x710
[ 4721.301535][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4721.301535][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4721.301535][   T73]      ___sys_sendmsg+0xee/0x170
[ 4721.301535][   T73]      __sys_sendmsg+0xcd/0x170
[ 4721.301535][   T73]      do_syscall_64+0xc6/0x1e0
[ 4721.301535][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4721.301535][   T73] 
[ 4721.303126][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4721.303126][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4721.303126][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4721.303126][   T73]      ipv6_find_idev+0x102/0x170
[ 4721.303126][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4721.303126][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4721.303126][   T73]      netlink_rcv_skb+0x130/0x360
[ 4721.303126][   T73]      netlink_unicast+0x449/0x710
[ 4721.303126][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4721.303126][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4721.303126][   T73]      ___sys_sendmsg+0xee/0x170
[ 4721.303126][   T73]      __sys_sendmsg+0xcd/0x170
[ 4721.303126][   T73]      do_syscall_64+0xc6/0x1e0
[ 4721.303126][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4721.303126][   T73] 
[ 4721.304888][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4721.305171][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4721.305171][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4721.305171][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4721.305171][   T73]      fib6_nh_init+0xa22/0x1580
[ 4721.305171][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4721.305171][   T73]      ip6_route_add+0x1c/0x140
[ 4721.305171][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4721.305171][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4721.305171][   T73]      netlink_rcv_skb+0x130/0x360
[ 4721.305171][   T73]      netlink_unicast+0x449/0x710
[ 4721.305171][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4721.305171][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4721.305171][   T73]      ___sys_sendmsg+0xee/0x170
[ 4721.305171][   T73]      __sys_sendmsg+0xcd/0x170
[ 4721.305171][   T73]      do_syscall_64+0xc6/0x1e0
[ 4721.305171][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4721.305171][   T73] 
[ 4721.307281][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4721.307281][   T73]      dst_init+0x84/0x4a0
[ 4721.307281][   T73]      dst_alloc+0x97/0x150
[ 4721.307281][   T73]      ip6_dst_alloc+0x23/0x90
[ 4721.307281][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4721.307281][   T73]      ip6_pol_route+0x56f/0x840
[ 4721.307281][   T73]      fib6_rule_lookup+0x456/0x630
[ 4721.307281][   T73]      ip6_route_input+0x59c/0xa50
[ 4721.307281][   T73]      ipv6_rcv+0x397/0x810
[ 4721.307281][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4721.307281][   T73]      process_backlog+0x101/0x620
[ 4721.307281][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4721.307281][   T73]      net_rx_action+0x495/0xbe0
[ 4721.307281][   T73]      __do_softirq+0x1b5/0x7f6
[ 4721.307281][   T73] 
[ 4721.309131][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4721.309131][   T73]      netdev_get_by_index+0x5e/0x80
[ 4721.309131][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4721.309131][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4721.309131][   T73]      ip6_route_add+0x1c/0x140
[ 4721.309131][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4721.309131][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4721.309131][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4721.309131][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4721.309131][   T73]      netlink_rcv_skb+0x130/0x360
[ 4721.309131][   T73]      netlink_unicast+0x449/0x710
[ 4721.309131][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4721.309131][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4721.309131][   T73]      ___sys_sendmsg+0xee/0x170
[ 4721.309131][   T73]      __sys_sendmsg+0xcd/0x170
[ 4721.309131][   T73]      do_syscall_64+0xc6/0x1e0
[ 4721.309131][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4721.309131][   T73] 
[ 4721.311417][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4721.311417][   T73]      netdev_get_by_index+0x5e/0x80
[ 4721.311417][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4721.311417][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4721.311417][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4721.311417][   T73]      ipv6_add_addr+0x411/0x2000
[ 4721.311417][   T73]      inet6_addr_add+0x30e/0xa40
[ 4721.311417][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4721.311417][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4721.311417][   T73]      netlink_rcv_skb+0x130/0x360
[ 4721.311417][   T73]      netlink_unicast+0x449/0x710
[ 4721.311417][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4721.311417][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4721.311417][   T73]      ___sys_sendmsg+0xee/0x170
[ 4721.311417][   T73]      __sys_sendmsg+0xcd/0x170
[ 4721.311417][   T73]      do_syscall_64+0xc6/0x1e0
[ 4721.311417][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4721.311417][   T73] 
[ 4721.313704][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4721.313704][   T73]      netdev_get_by_index+0x5e/0x80
[ 4721.313704][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4721.313704][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4721.313704][   T73]      ip6_route_add+0x1c/0x140
[ 4721.313704][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4721.313704][   T73]      addrconf_add_dev+0xe2/0x170
[ 4721.313704][   T73]      inet6_addr_add+0x12f/0xa40
[ 4721.313704][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4721.313704][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4721.313704][   T73]      netlink_rcv_skb+0x130/0x360
[ 4721.313704][   T73]      netlink_unicast+0x449/0x710
[ 4721.313704][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4721.313704][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4721.313704][   T73]      ___sys_sendmsg+0xee/0x170
[ 4721.313704][   T73]      __sys_sendmsg+0xcd/0x170
[ 4721.313704][   T73]      do_syscall_64+0xc6/0x1e0
[ 4721.313704][   T73] 
[ 4721.315944][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4721.315944][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4721.315944][   T73]      ipv6_find_idev+0x102/0x170
[ 4721.315944][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4721.315944][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4721.315944][   T73]      netlink_rcv_skb+0x130/0x360
[ 4721.315944][   T73]      netlink_unicast+0x449/0x710
[ 4721.315944][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4721.315944][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4721.315944][   T73]      ___sys_sendmsg+0xee/0x170
[ 4721.315944][   T73]      __sys_sendmsg+0xcd/0x170
[ 4721.315944][   T73]      do_syscall_64+0xc6/0x1e0
[ 4721.315944][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4721.315944][   T73] 
[ 4721.317685][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4721.317685][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4721.317685][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4721.317685][   T73]      ipv6_find_idev+0x102/0x170
[ 4721.317685][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4721.317685][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4721.317685][   T73]      netlink_rcv_skb+0x130/0x360
[ 4721.317685][   T73]      netlink_unicast+0x449/0x710
[ 4721.317685][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4721.317685][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4721.317685][   T73]      ___sys_sendmsg+0xee/0x170
[ 4721.317685][   T73]      __sys_sendmsg+0xcd/0x170
[ 4721.317685][   T73]      do_syscall_64+0xc6/0x1e0
[ 4721.317685][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4721.317685][   T73] 
[ 4721.319588][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4721.320394][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4721.320394][   T73]      netdev_get_by_index+0x5e/0x80
[ 4721.320394][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4721.320394][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4721.320394][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4721.320394][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4721.320394][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4721.320394][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4721.320394][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4721.320394][   T73]      addrconf_dad_begin+0x310/0x670
[ 4721.320394][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4721.320394][   T73]      process_one_work+0x84d/0x18a0
[ 4721.320394][   T73]      worker_thread+0x587/0xd30
[ 4721.320394][   T73]      kthread+0x28a/0x350
[ 4721.320394][   T73]      ret_from_fork+0x31/0x70
[ 4721.320394][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4721.320394][   T73] 
[ 4721.322357][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4721.322357][   T73]      netdev_get_by_index+0x5e/0x80
[ 4721.322357][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4721.322357][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4721.322357][   T73]      ip6_route_add+0x1c/0x140
[ 4721.322357][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4721.322357][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4721.322357][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4721.322357][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4721.322357][   T73]      netlink_rcv_skb+0x130/0x360
[ 4721.322357][   T73]      netlink_unicast+0x449/0x710
[ 4721.322357][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4721.322357][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4721.322357][   T73]      ___sys_sendmsg+0xee/0x170
[ 4721.322357][   T73]      __sys_sendmsg+0xcd/0x170
[ 4721.322357][   T73]      do_syscall_64+0xc6/0x1e0
[ 4721.322357][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4721.322357][   T73] 
[ 4721.324406][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4721.324406][   T73]      netdev_get_by_index+0x5e/0x80
[ 4721.324406][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4721.324406][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4721.324406][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4721.324406][   T73]      ipv6_add_addr+0x411/0x2000
[ 4721.324406][   T73]      inet6_addr_add+0x30e/0xa40
[ 4721.324406][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4721.324406][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4721.324406][   T73]      netlink_rcv_skb+0x130/0x360
[ 4721.324406][   T73]      netlink_unicast+0x449/0x710
[ 4721.324406][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4721.324406][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4721.324406][   T73]      ___sys_sendmsg+0xee/0x170
[ 4721.324406][   T73]      __sys_sendmsg+0xcd/0x170
[ 4721.324406][   T73]      do_syscall_64+0xc6/0x1e0
[ 4721.324406][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4721.324406][   T73] 
[ 4721.326740][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4721.326740][   T73]      netdev_get_by_index+0x5e/0x80
[ 4721.326740][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4721.326740][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4721.326740][   T73]      ip6_route_add+0x1c/0x140
[ 4721.326740][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4721.326740][   T73]      addrconf_add_dev+0xe2/0x170
[ 4721.326740][   T73]      inet6_addr_add+0x12f/0xa40
[ 4721.326740][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4721.326740][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4721.326740][   T73]      netlink_rcv_skb+0x130/0x360
[ 4721.326740][   T73]      netlink_unicast+0x449/0x710
[ 4721.326740][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4721.326740][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4721.326740][   T73]      ___sys_sendmsg+0xee/0x170
[ 4721.326740][   T73]      __sys_sendmsg+0xcd/0x170
[ 4721.326740][   T73]      do_syscall_64+0xc6/0x1e0
[ 4721.326740][   T73] 
[ 4721.328995][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4721.328995][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4721.328995][   T73]      ipv6_find_idev+0x102/0x170
[ 4721.328995][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4721.328995][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4721.328995][   T73]      netlink_rcv_skb+0x130/0x360
[ 4721.328995][   T73]      netlink_unicast+0x449/0x710
[ 4721.328995][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4721.328995][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4721.328995][   T73]      ___sys_sendmsg+0xee/0x170
[ 4721.328995][   T73]      __sys_sendmsg+0xcd/0x170
[ 4721.328995][   T73]      do_syscall_64+0xc6/0x1e0
[ 4721.328995][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4721.328995][   T73] 
[ 4721.330742][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4721.330742][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4721.330742][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4721.330742][   T73]      ipv6_find_idev+0x102/0x170
[ 4721.330742][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4721.330742][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4721.330742][   T73]      netlink_rcv_skb+0x130/0x360
[ 4721.330742][   T73]      netlink_unicast+0x449/0x710
[ 4721.330742][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4721.330742][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4721.330742][   T73]      ___sys_sendmsg+0xee/0x170
[ 4721.330742][   T73]      __sys_sendmsg+0xcd/0x170
[ 4721.330742][   T73]      do_syscall_64+0xc6/0x1e0
[ 4721.330742][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4721.330742][   T73] 
[ 4731.575720][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4731.576190][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4731.576190][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4731.576190][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4731.576190][   T73]      fib6_nh_init+0xa22/0x1580
[ 4731.576190][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4731.576190][   T73]      ip6_route_add+0x1c/0x140
[ 4731.576190][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4731.576190][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4731.576190][   T73]      netlink_rcv_skb+0x130/0x360
[ 4731.576190][   T73]      netlink_unicast+0x449/0x710
[ 4731.576190][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4731.576190][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4731.576190][   T73]      ___sys_sendmsg+0xee/0x170
[ 4731.576190][   T73]      __sys_sendmsg+0xcd/0x170
[ 4731.576190][   T73]      do_syscall_64+0xc6/0x1e0
[ 4731.576190][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4731.576190][   T73] 
[ 4731.578144][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4731.578144][   T73]      dst_init+0x84/0x4a0
[ 4731.578144][   T73]      dst_alloc+0x97/0x150
[ 4731.578144][   T73]      ip6_dst_alloc+0x23/0x90
[ 4731.578144][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4731.578144][   T73]      ip6_pol_route+0x56f/0x840
[ 4731.578144][   T73]      fib6_rule_lookup+0x456/0x630
[ 4731.578144][   T73]      ip6_route_input+0x59c/0xa50
[ 4731.578144][   T73]      ipv6_rcv+0x397/0x810
[ 4731.578144][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4731.578144][   T73]      process_backlog+0x101/0x620
[ 4731.578144][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4731.578144][   T73]      net_rx_action+0x495/0xbe0
[ 4731.578144][   T73]      __do_softirq+0x1b5/0x7f6
[ 4731.578144][   T73] 
[ 4731.579810][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4731.579810][   T73]      netdev_get_by_index+0x5e/0x80
[ 4731.579810][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4731.579810][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4731.579810][   T73]      ip6_route_add+0x1c/0x140
[ 4731.579810][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4731.579810][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4731.579810][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4731.579810][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4731.579810][   T73]      netlink_rcv_skb+0x130/0x360
[ 4731.579810][   T73]      netlink_unicast+0x449/0x710
[ 4731.579810][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4731.579810][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4731.579810][   T73]      ___sys_sendmsg+0xee/0x170
[ 4731.579810][   T73]      __sys_sendmsg+0xcd/0x170
[ 4731.579810][   T73]      do_syscall_64+0xc6/0x1e0
[ 4731.579810][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4731.579810][   T73] 
[ 4731.581859][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4731.581859][   T73]      netdev_get_by_index+0x5e/0x80
[ 4731.581859][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4731.581859][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4731.581859][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4731.581859][   T73]      ipv6_add_addr+0x411/0x2000
[ 4731.581859][   T73]      inet6_addr_add+0x30e/0xa40
[ 4731.581859][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4731.581859][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4731.581859][   T73]      netlink_rcv_skb+0x130/0x360
[ 4731.581859][   T73]      netlink_unicast+0x449/0x710
[ 4731.581859][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4731.581859][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4731.581859][   T73]      ___sys_sendmsg+0xee/0x170
[ 4731.581859][   T73]      __sys_sendmsg+0xcd/0x170
[ 4731.581859][   T73]      do_syscall_64+0xc6/0x1e0
[ 4731.581859][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4731.581859][   T73] 
[ 4731.583969][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4731.583969][   T73]      netdev_get_by_index+0x5e/0x80
[ 4731.583969][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4731.583969][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4731.583969][   T73]      ip6_route_add+0x1c/0x140
[ 4731.583969][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4731.583969][   T73]      addrconf_add_dev+0xe2/0x170
[ 4731.583969][   T73]      inet6_addr_add+0x12f/0xa40
[ 4731.583969][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4731.583969][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4731.583969][   T73]      netlink_rcv_skb+0x130/0x360
[ 4731.583969][   T73]      netlink_unicast+0x449/0x710
[ 4731.583969][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4731.583969][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4731.583969][   T73]      ___sys_sendmsg+0xee/0x170
[ 4731.583969][   T73]      __sys_sendmsg+0xcd/0x170
[ 4731.583969][   T73]      do_syscall_64+0xc6/0x1e0
[ 4731.583969][   T73] 
[ 4731.585984][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4731.585984][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4731.585984][   T73]      ipv6_find_idev+0x102/0x170
[ 4731.585984][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4731.585984][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4731.585984][   T73]      netlink_rcv_skb+0x130/0x360
[ 4731.585984][   T73]      netlink_unicast+0x449/0x710
[ 4731.585984][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4731.585984][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4731.585984][   T73]      ___sys_sendmsg+0xee/0x170
[ 4731.585984][   T73]      __sys_sendmsg+0xcd/0x170
[ 4731.585984][   T73]      do_syscall_64+0xc6/0x1e0
[ 4731.585984][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4731.585984][   T73] 
[ 4731.587559][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4731.587559][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4731.587559][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4731.587559][   T73]      ipv6_find_idev+0x102/0x170
[ 4731.587559][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4731.587559][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4731.587559][   T73]      netlink_rcv_skb+0x130/0x360
[ 4731.587559][   T73]      netlink_unicast+0x449/0x710
[ 4731.587559][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4731.587559][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4731.587559][   T73]      ___sys_sendmsg+0xee/0x170
[ 4731.587559][   T73]      __sys_sendmsg+0xcd/0x170
[ 4731.587559][   T73]      do_syscall_64+0xc6/0x1e0
[ 4731.587559][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4731.587559][   T73] 
[ 4731.589290][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4731.589575][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4731.589575][   T73]      netdev_get_by_index+0x5e/0x80
[ 4731.589575][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4731.589575][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4731.589575][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4731.589575][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4731.589575][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4731.589575][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4731.589575][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4731.589575][   T73]      addrconf_dad_begin+0x310/0x670
[ 4731.589575][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4731.589575][   T73]      process_one_work+0x84d/0x18a0
[ 4731.589575][   T73]      worker_thread+0x587/0xd30
[ 4731.589575][   T73]      kthread+0x28a/0x350
[ 4731.589575][   T73]      ret_from_fork+0x31/0x70
[ 4731.589575][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4731.589575][   T73] 
[ 4731.591536][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4731.591536][   T73]      netdev_get_by_index+0x5e/0x80
[ 4731.591536][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4731.591536][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4731.591536][   T73]      ip6_route_add+0x1c/0x140
[ 4731.591536][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4731.591536][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4731.591536][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4731.591536][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4731.591536][   T73]      netlink_rcv_skb+0x130/0x360
[ 4731.591536][   T73]      netlink_unicast+0x449/0x710
[ 4731.591536][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4731.591536][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4731.591536][   T73]      ___sys_sendmsg+0xee/0x170
[ 4731.591536][   T73]      __sys_sendmsg+0xcd/0x170
[ 4731.591536][   T73]      do_syscall_64+0xc6/0x1e0
[ 4731.591536][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4731.591536][   T73] 
[ 4731.593588][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4731.593588][   T73]      netdev_get_by_index+0x5e/0x80
[ 4731.593588][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4731.593588][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4731.593588][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4731.593588][   T73]      ipv6_add_addr+0x411/0x2000
[ 4731.593588][   T73]      inet6_addr_add+0x30e/0xa40
[ 4731.593588][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4731.593588][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4731.593588][   T73]      netlink_rcv_skb+0x130/0x360
[ 4731.593588][   T73]      netlink_unicast+0x449/0x710
[ 4731.593588][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4731.593588][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4731.593588][   T73]      ___sys_sendmsg+0xee/0x170
[ 4731.593588][   T73]      __sys_sendmsg+0xcd/0x170
[ 4731.593588][   T73]      do_syscall_64+0xc6/0x1e0
[ 4731.593588][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4731.593588][   T73] 
[ 4731.595628][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4731.595628][   T73]      netdev_get_by_index+0x5e/0x80
[ 4731.595628][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4731.595628][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4731.595628][   T73]      ip6_route_add+0x1c/0x140
[ 4731.595628][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4731.595628][   T73]      addrconf_add_dev+0xe2/0x170
[ 4731.595628][   T73]      inet6_addr_add+0x12f/0xa40
[ 4731.595628][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4731.595628][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4731.595628][   T73]      netlink_rcv_skb+0x130/0x360
[ 4731.595628][   T73]      netlink_unicast+0x449/0x710
[ 4731.595628][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4731.595628][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4731.595628][   T73]      ___sys_sendmsg+0xee/0x170
[ 4731.595628][   T73]      __sys_sendmsg+0xcd/0x170
[ 4731.595628][   T73]      do_syscall_64+0xc6/0x1e0
[ 4731.595628][   T73] 
[ 4731.597623][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4731.597623][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4731.597623][   T73]      ipv6_find_idev+0x102/0x170
[ 4731.597623][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4731.597623][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4731.597623][   T73]      netlink_rcv_skb+0x130/0x360
[ 4731.597623][   T73]      netlink_unicast+0x449/0x710
[ 4731.597623][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4731.597623][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4731.597623][   T73]      ___sys_sendmsg+0xee/0x170
[ 4731.597623][   T73]      __sys_sendmsg+0xcd/0x170
[ 4731.597623][   T73]      do_syscall_64+0xc6/0x1e0
[ 4731.597623][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4731.597623][   T73] 
[ 4731.599195][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4731.599195][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4731.599195][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4731.599195][   T73]      ipv6_find_idev+0x102/0x170
[ 4731.599195][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4731.599195][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4731.599195][   T73]      netlink_rcv_skb+0x130/0x360
[ 4731.599195][   T73]      netlink_unicast+0x449/0x710
[ 4731.599195][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4731.599195][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4731.599195][   T73]      ___sys_sendmsg+0xee/0x170
[ 4731.599195][   T73]      __sys_sendmsg+0xcd/0x170
[ 4731.599195][   T73]      do_syscall_64+0xc6/0x1e0
[ 4731.599195][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4731.599195][   T73] 
[ 4731.600951][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4731.601221][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4731.601221][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4731.601221][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4731.601221][   T73]      fib6_nh_init+0xa22/0x1580
[ 4731.601221][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4731.601221][   T73]      ip6_route_add+0x1c/0x140
[ 4731.601221][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4731.601221][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4731.601221][   T73]      netlink_rcv_skb+0x130/0x360
[ 4731.601221][   T73]      netlink_unicast+0x449/0x710
[ 4731.601221][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4731.601221][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4731.601221][   T73]      ___sys_sendmsg+0xee/0x170
[ 4731.601221][   T73]      __sys_sendmsg+0xcd/0x170
[ 4731.601221][   T73]      do_syscall_64+0xc6/0x1e0
[ 4731.601221][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4731.601221][   T73] 
[ 4731.603332][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4731.603332][   T73]      dst_init+0x84/0x4a0
[ 4731.603332][   T73]      dst_alloc+0x97/0x150
[ 4731.603332][   T73]      ip6_dst_alloc+0x23/0x90
[ 4731.603332][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4731.603332][   T73]      ip6_pol_route+0x56f/0x840
[ 4731.603332][   T73]      fib6_rule_lookup+0x456/0x630
[ 4731.603332][   T73]      ip6_route_input+0x59c/0xa50
[ 4731.603332][   T73]      ipv6_rcv+0x397/0x810
[ 4731.603332][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4731.603332][   T73]      process_backlog+0x101/0x620
[ 4731.603332][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4731.603332][   T73]      net_rx_action+0x495/0xbe0
[ 4731.603332][   T73]      __do_softirq+0x1b5/0x7f6
[ 4731.603332][   T73] 
[ 4731.605174][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4731.605174][   T73]      netdev_get_by_index+0x5e/0x80
[ 4731.605174][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4731.605174][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4731.605174][   T73]      ip6_route_add+0x1c/0x140
[ 4731.605174][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4731.605174][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4731.605174][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4731.605174][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4731.605174][   T73]      netlink_rcv_skb+0x130/0x360
[ 4731.605174][   T73]      netlink_unicast+0x449/0x710
[ 4731.605174][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4731.605174][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4731.605174][   T73]      ___sys_sendmsg+0xee/0x170
[ 4731.605174][   T73]      __sys_sendmsg+0xcd/0x170
[ 4731.605174][   T73]      do_syscall_64+0xc6/0x1e0
[ 4731.605174][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4731.605174][   T73] 
[ 4731.607496][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4731.607496][   T73]      netdev_get_by_index+0x5e/0x80
[ 4731.607496][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4731.607496][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4731.607496][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4731.607496][   T73]      ipv6_add_addr+0x411/0x2000
[ 4731.607496][   T73]      inet6_addr_add+0x30e/0xa40
[ 4731.607496][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4731.607496][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4731.607496][   T73]      netlink_rcv_skb+0x130/0x360
[ 4731.607496][   T73]      netlink_unicast+0x449/0x710
[ 4731.607496][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4731.607496][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4731.607496][   T73]      ___sys_sendmsg+0xee/0x170
[ 4731.607496][   T73]      __sys_sendmsg+0xcd/0x170
[ 4731.607496][   T73]      do_syscall_64+0xc6/0x1e0
[ 4731.607496][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4731.607496][   T73] 
[ 4731.609701][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4731.609701][   T73]      netdev_get_by_index+0x5e/0x80
[ 4731.609701][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4731.609701][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4731.609701][   T73]      ip6_route_add+0x1c/0x140
[ 4731.609701][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4731.609701][   T73]      addrconf_add_dev+0xe2/0x170
[ 4731.609701][   T73]      inet6_addr_add+0x12f/0xa40
[ 4731.609701][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4731.609701][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4731.609701][   T73]      netlink_rcv_skb+0x130/0x360
[ 4731.609701][   T73]      netlink_unicast+0x449/0x710
[ 4731.609701][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4731.609701][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4731.609701][   T73]      ___sys_sendmsg+0xee/0x170
[ 4731.609701][   T73]      __sys_sendmsg+0xcd/0x170
[ 4731.609701][   T73]      do_syscall_64+0xc6/0x1e0
[ 4731.609701][   T73] 
[ 4731.611939][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4731.611939][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4731.611939][   T73]      ipv6_find_idev+0x102/0x170
[ 4731.611939][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4731.611939][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4731.611939][   T73]      netlink_rcv_skb+0x130/0x360
[ 4731.611939][   T73]      netlink_unicast+0x449/0x710
[ 4731.611939][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4731.611939][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4731.611939][   T73]      ___sys_sendmsg+0xee/0x170
[ 4731.611939][   T73]      __sys_sendmsg+0xcd/0x170
[ 4731.611939][   T73]      do_syscall_64+0xc6/0x1e0
[ 4731.611939][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4731.611939][   T73] 
[ 4731.613676][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4731.613676][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4731.613676][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4731.613676][   T73]      ipv6_find_idev+0x102/0x170
[ 4731.613676][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4731.613676][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4731.613676][   T73]      netlink_rcv_skb+0x130/0x360
[ 4731.613676][   T73]      netlink_unicast+0x449/0x710
[ 4731.613676][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4731.613676][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4731.613676][   T73]      ___sys_sendmsg+0xee/0x170
[ 4731.613676][   T73]      __sys_sendmsg+0xcd/0x170
[ 4731.613676][   T73]      do_syscall_64+0xc6/0x1e0
[ 4731.613676][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4731.613676][   T73] 
[ 4731.615573][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4731.616382][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4731.616382][   T73]      netdev_get_by_index+0x5e/0x80
[ 4731.616382][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4731.616382][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4731.616382][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4731.616382][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4731.616382][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4731.616382][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4731.616382][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4731.616382][   T73]      addrconf_dad_begin+0x310/0x670
[ 4731.616382][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4731.616382][   T73]      process_one_work+0x84d/0x18a0
[ 4731.616382][   T73]      worker_thread+0x587/0xd30
[ 4731.616382][   T73]      kthread+0x28a/0x350
[ 4731.616382][   T73]      ret_from_fork+0x31/0x70
[ 4731.616382][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4731.616382][   T73] 
[ 4731.618311][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4731.618311][   T73]      netdev_get_by_index+0x5e/0x80
[ 4731.618311][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4731.618311][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4731.618311][   T73]      ip6_route_add+0x1c/0x140
[ 4731.618311][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4731.618311][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4731.618311][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4731.618311][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4731.618311][   T73]      netlink_rcv_skb+0x130/0x360
[ 4731.618311][   T73]      netlink_unicast+0x449/0x710
[ 4731.618311][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4731.618311][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4731.618311][   T73]      ___sys_sendmsg+0xee/0x170
[ 4731.618311][   T73]      __sys_sendmsg+0xcd/0x170
[ 4731.618311][   T73]      do_syscall_64+0xc6/0x1e0
[ 4731.618311][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4731.618311][   T73] 
[ 4731.620382][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4731.620382][   T73]      netdev_get_by_index+0x5e/0x80
[ 4731.620382][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4731.620382][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4731.620382][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4731.620382][   T73]      ipv6_add_addr+0x411/0x2000
[ 4731.620382][   T73]      inet6_addr_add+0x30e/0xa40
[ 4731.620382][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4731.620382][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4731.620382][   T73]      netlink_rcv_skb+0x130/0x360
[ 4731.620382][   T73]      netlink_unicast+0x449/0x710
[ 4731.620382][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4731.620382][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4731.620382][   T73]      ___sys_sendmsg+0xee/0x170
[ 4731.620382][   T73]      __sys_sendmsg+0xcd/0x170
[ 4731.620382][   T73]      do_syscall_64+0xc6/0x1e0
[ 4731.620382][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4731.620382][   T73] 
[ 4731.622658][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4731.622658][   T73]      netdev_get_by_index+0x5e/0x80
[ 4731.622658][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4731.622658][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4731.622658][   T73]      ip6_route_add+0x1c/0x140
[ 4731.622658][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4731.622658][   T73]      addrconf_add_dev+0xe2/0x170
[ 4731.622658][   T73]      inet6_addr_add+0x12f/0xa40
[ 4731.622658][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4731.622658][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4731.622658][   T73]      netlink_rcv_skb+0x130/0x360
[ 4731.622658][   T73]      netlink_unicast+0x449/0x710
[ 4731.622658][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4731.622658][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4731.622658][   T73]      ___sys_sendmsg+0xee/0x170
[ 4731.622658][   T73]      __sys_sendmsg+0xcd/0x170
[ 4731.622658][   T73]      do_syscall_64+0xc6/0x1e0
[ 4731.622658][   T73] 
[ 4731.624894][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4731.624894][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4731.624894][   T73]      ipv6_find_idev+0x102/0x170
[ 4731.624894][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4731.624894][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4731.624894][   T73]      netlink_rcv_skb+0x130/0x360
[ 4731.624894][   T73]      netlink_unicast+0x449/0x710
[ 4731.624894][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4731.624894][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4731.624894][   T73]      ___sys_sendmsg+0xee/0x170
[ 4731.624894][   T73]      __sys_sendmsg+0xcd/0x170
[ 4731.624894][   T73]      do_syscall_64+0xc6/0x1e0
[ 4731.624894][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4731.624894][   T73] 
[ 4731.626647][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4731.626647][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4731.626647][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4731.626647][   T73]      ipv6_find_idev+0x102/0x170
[ 4731.626647][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4731.626647][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4731.626647][   T73]      netlink_rcv_skb+0x130/0x360
[ 4731.626647][   T73]      netlink_unicast+0x449/0x710
[ 4731.626647][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4731.626647][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4731.626647][   T73]      ___sys_sendmsg+0xee/0x170
[ 4731.626647][   T73]      __sys_sendmsg+0xcd/0x170
[ 4731.626647][   T73]      do_syscall_64+0xc6/0x1e0
[ 4731.626647][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4731.626647][   T73] 
[ 4742.335774][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4742.336242][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4742.336242][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4742.336242][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4742.336242][   T73]      fib6_nh_init+0xa22/0x1580
[ 4742.336242][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4742.336242][   T73]      ip6_route_add+0x1c/0x140
[ 4742.336242][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4742.336242][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4742.336242][   T73]      netlink_rcv_skb+0x130/0x360
[ 4742.336242][   T73]      netlink_unicast+0x449/0x710
[ 4742.336242][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4742.336242][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4742.336242][   T73]      ___sys_sendmsg+0xee/0x170
[ 4742.336242][   T73]      __sys_sendmsg+0xcd/0x170
[ 4742.336242][   T73]      do_syscall_64+0xc6/0x1e0
[ 4742.336242][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4742.336242][   T73] 
[ 4742.338148][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4742.338148][   T73]      dst_init+0x84/0x4a0
[ 4742.338148][   T73]      dst_alloc+0x97/0x150
[ 4742.338148][   T73]      ip6_dst_alloc+0x23/0x90
[ 4742.338148][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4742.338148][   T73]      ip6_pol_route+0x56f/0x840
[ 4742.338148][   T73]      fib6_rule_lookup+0x456/0x630
[ 4742.338148][   T73]      ip6_route_input+0x59c/0xa50
[ 4742.338148][   T73]      ipv6_rcv+0x397/0x810
[ 4742.338148][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4742.338148][   T73]      process_backlog+0x101/0x620
[ 4742.338148][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4742.338148][   T73]      net_rx_action+0x495/0xbe0
[ 4742.338148][   T73]      __do_softirq+0x1b5/0x7f6
[ 4742.338148][   T73] 
[ 4742.339794][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4742.339794][   T73]      netdev_get_by_index+0x5e/0x80
[ 4742.339794][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4742.339794][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4742.339794][   T73]      ip6_route_add+0x1c/0x140
[ 4742.339794][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4742.339794][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4742.339794][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4742.339794][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4742.339794][   T73]      netlink_rcv_skb+0x130/0x360
[ 4742.339794][   T73]      netlink_unicast+0x449/0x710
[ 4742.339794][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4742.339794][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4742.339794][   T73]      ___sys_sendmsg+0xee/0x170
[ 4742.339794][   T73]      __sys_sendmsg+0xcd/0x170
[ 4742.339794][   T73]      do_syscall_64+0xc6/0x1e0
[ 4742.339794][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4742.339794][   T73] 
[ 4742.341827][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4742.341827][   T73]      netdev_get_by_index+0x5e/0x80
[ 4742.341827][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4742.341827][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4742.341827][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4742.341827][   T73]      ipv6_add_addr+0x411/0x2000
[ 4742.341827][   T73]      inet6_addr_add+0x30e/0xa40
[ 4742.341827][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4742.341827][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4742.341827][   T73]      netlink_rcv_skb+0x130/0x360
[ 4742.341827][   T73]      netlink_unicast+0x449/0x710
[ 4742.341827][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4742.341827][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4742.341827][   T73]      ___sys_sendmsg+0xee/0x170
[ 4742.341827][   T73]      __sys_sendmsg+0xcd/0x170
[ 4742.341827][   T73]      do_syscall_64+0xc6/0x1e0
[ 4742.341827][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4742.341827][   T73] 
[ 4742.343887][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4742.343887][   T73]      netdev_get_by_index+0x5e/0x80
[ 4742.343887][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4742.343887][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4742.343887][   T73]      ip6_route_add+0x1c/0x140
[ 4742.343887][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4742.343887][   T73]      addrconf_add_dev+0xe2/0x170
[ 4742.343887][   T73]      inet6_addr_add+0x12f/0xa40
[ 4742.343887][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4742.343887][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4742.343887][   T73]      netlink_rcv_skb+0x130/0x360
[ 4742.343887][   T73]      netlink_unicast+0x449/0x710
[ 4742.343887][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4742.343887][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4742.343887][   T73]      ___sys_sendmsg+0xee/0x170
[ 4742.343887][   T73]      __sys_sendmsg+0xcd/0x170
[ 4742.343887][   T73]      do_syscall_64+0xc6/0x1e0
[ 4742.343887][   T73] 
[ 4742.345888][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4742.345888][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4742.345888][   T73]      ipv6_find_idev+0x102/0x170
[ 4742.345888][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4742.345888][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4742.345888][   T73]      netlink_rcv_skb+0x130/0x360
[ 4742.345888][   T73]      netlink_unicast+0x449/0x710
[ 4742.345888][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4742.345888][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4742.345888][   T73]      ___sys_sendmsg+0xee/0x170
[ 4742.345888][   T73]      __sys_sendmsg+0xcd/0x170
[ 4742.345888][   T73]      do_syscall_64+0xc6/0x1e0
[ 4742.345888][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4742.345888][   T73] 
[ 4742.347464][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4742.347464][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4742.347464][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4742.347464][   T73]      ipv6_find_idev+0x102/0x170
[ 4742.347464][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4742.347464][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4742.347464][   T73]      netlink_rcv_skb+0x130/0x360
[ 4742.347464][   T73]      netlink_unicast+0x449/0x710
[ 4742.347464][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4742.347464][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4742.347464][   T73]      ___sys_sendmsg+0xee/0x170
[ 4742.347464][   T73]      __sys_sendmsg+0xcd/0x170
[ 4742.347464][   T73]      do_syscall_64+0xc6/0x1e0
[ 4742.347464][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4742.347464][   T73] 
[ 4742.349200][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4742.349492][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4742.349492][   T73]      netdev_get_by_index+0x5e/0x80
[ 4742.349492][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4742.349492][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4742.349492][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4742.349492][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4742.349492][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4742.349492][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4742.349492][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4742.349492][   T73]      addrconf_dad_begin+0x310/0x670
[ 4742.349492][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4742.349492][   T73]      process_one_work+0x84d/0x18a0
[ 4742.349492][   T73]      worker_thread+0x587/0xd30
[ 4742.349492][   T73]      kthread+0x28a/0x350
[ 4742.349492][   T73]      ret_from_fork+0x31/0x70
[ 4742.349492][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4742.349492][   T73] 
[ 4742.351975][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4742.351975][   T73]      netdev_get_by_index+0x5e/0x80
[ 4742.351975][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4742.351975][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4742.351975][   T73]      ip6_route_add+0x1c/0x140
[ 4742.351975][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4742.351975][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4742.351975][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4742.351975][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4742.351975][   T73]      netlink_rcv_skb+0x130/0x360
[ 4742.351975][   T73]      netlink_unicast+0x449/0x710
[ 4742.351975][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4742.351975][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4742.351975][   T73]      ___sys_sendmsg+0xee/0x170
[ 4742.351975][   T73]      __sys_sendmsg+0xcd/0x170
[ 4742.351975][   T73]      do_syscall_64+0xc6/0x1e0
[ 4742.351975][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4742.351975][   T73] 
[ 4742.354015][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4742.354015][   T73]      netdev_get_by_index+0x5e/0x80
[ 4742.354015][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4742.354015][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4742.354015][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4742.354015][   T73]      ipv6_add_addr+0x411/0x2000
[ 4742.354015][   T73]      inet6_addr_add+0x30e/0xa40
[ 4742.354015][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4742.354015][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4742.354015][   T73]      netlink_rcv_skb+0x130/0x360
[ 4742.354015][   T73]      netlink_unicast+0x449/0x710
[ 4742.354015][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4742.354015][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4742.354015][   T73]      ___sys_sendmsg+0xee/0x170
[ 4742.354015][   T73]      __sys_sendmsg+0xcd/0x170
[ 4742.354015][   T73]      do_syscall_64+0xc6/0x1e0
[ 4742.354015][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4742.354015][   T73] 
[ 4742.356033][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4742.356033][   T73]      netdev_get_by_index+0x5e/0x80
[ 4742.356033][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4742.356033][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4742.356033][   T73]      ip6_route_add+0x1c/0x140
[ 4742.356033][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4742.356033][   T73]      addrconf_add_dev+0xe2/0x170
[ 4742.356033][   T73]      inet6_addr_add+0x12f/0xa40
[ 4742.356033][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4742.356033][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4742.356033][   T73]      netlink_rcv_skb+0x130/0x360
[ 4742.356033][   T73]      netlink_unicast+0x449/0x710
[ 4742.356033][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4742.356033][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4742.356033][   T73]      ___sys_sendmsg+0xee/0x170
[ 4742.356033][   T73]      __sys_sendmsg+0xcd/0x170
[ 4742.356033][   T73]      do_syscall_64+0xc6/0x1e0
[ 4742.356033][   T73] 
[ 4742.358020][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4742.358020][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4742.358020][   T73]      ipv6_find_idev+0x102/0x170
[ 4742.358020][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4742.358020][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4742.358020][   T73]      netlink_rcv_skb+0x130/0x360
[ 4742.358020][   T73]      netlink_unicast+0x449/0x710
[ 4742.358020][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4742.358020][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4742.358020][   T73]      ___sys_sendmsg+0xee/0x170
[ 4742.358020][   T73]      __sys_sendmsg+0xcd/0x170
[ 4742.358020][   T73]      do_syscall_64+0xc6/0x1e0
[ 4742.358020][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4742.358020][   T73] 
[ 4742.362210][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4742.362210][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4742.362210][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4742.362210][   T73]      ipv6_find_idev+0x102/0x170
[ 4742.362210][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4742.362210][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4742.362210][   T73]      netlink_rcv_skb+0x130/0x360
[ 4742.362210][   T73]      netlink_unicast+0x449/0x710
[ 4742.362210][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4742.362210][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4742.362210][   T73]      ___sys_sendmsg+0xee/0x170
[ 4742.362210][   T73]      __sys_sendmsg+0xcd/0x170
[ 4742.362210][   T73]      do_syscall_64+0xc6/0x1e0
[ 4742.362210][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4742.362210][   T73] 
[ 4742.363962][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4742.364240][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4742.364240][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4742.364240][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4742.364240][   T73]      fib6_nh_init+0xa22/0x1580
[ 4742.364240][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4742.364240][   T73]      ip6_route_add+0x1c/0x140
[ 4742.364240][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4742.364240][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4742.364240][   T73]      netlink_rcv_skb+0x130/0x360
[ 4742.364240][   T73]      netlink_unicast+0x449/0x710
[ 4742.364240][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4742.364240][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4742.364240][   T73]      ___sys_sendmsg+0xee/0x170
[ 4742.364240][   T73]      __sys_sendmsg+0xcd/0x170
[ 4742.364240][   T73]      do_syscall_64+0xc6/0x1e0
[ 4742.364240][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4742.364240][   T73] 
[ 4742.366349][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4742.366349][   T73]      dst_init+0x84/0x4a0
[ 4742.366349][   T73]      dst_alloc+0x97/0x150
[ 4742.366349][   T73]      ip6_dst_alloc+0x23/0x90
[ 4742.366349][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4742.366349][   T73]      ip6_pol_route+0x56f/0x840
[ 4742.366349][   T73]      fib6_rule_lookup+0x456/0x630
[ 4742.366349][   T73]      ip6_route_input+0x59c/0xa50
[ 4742.366349][   T73]      ipv6_rcv+0x397/0x810
[ 4742.366349][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4742.366349][   T73]      process_backlog+0x101/0x620
[ 4742.366349][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4742.366349][   T73]      net_rx_action+0x495/0xbe0
[ 4742.366349][   T73]      __do_softirq+0x1b5/0x7f6
[ 4742.366349][   T73] 
[ 4742.368258][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4742.368258][   T73]      netdev_get_by_index+0x5e/0x80
[ 4742.368258][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4742.368258][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4742.368258][   T73]      ip6_route_add+0x1c/0x140
[ 4742.368258][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4742.368258][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4742.368258][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4742.368258][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4742.368258][   T73]      netlink_rcv_skb+0x130/0x360
[ 4742.368258][   T73]      netlink_unicast+0x449/0x710
[ 4742.368258][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4742.368258][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4742.368258][   T73]      ___sys_sendmsg+0xee/0x170
[ 4742.368258][   T73]      __sys_sendmsg+0xcd/0x170
[ 4742.368258][   T73]      do_syscall_64+0xc6/0x1e0
[ 4742.368258][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4742.368258][   T73] 
[ 4742.370525][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4742.370525][   T73]      netdev_get_by_index+0x5e/0x80
[ 4742.370525][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4742.370525][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4742.370525][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4742.370525][   T73]      ipv6_add_addr+0x411/0x2000
[ 4742.370525][   T73]      inet6_addr_add+0x30e/0xa40
[ 4742.370525][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4742.370525][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4742.370525][   T73]      netlink_rcv_skb+0x130/0x360
[ 4742.370525][   T73]      netlink_unicast+0x449/0x710
[ 4742.370525][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4742.370525][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4742.370525][   T73]      ___sys_sendmsg+0xee/0x170
[ 4742.370525][   T73]      __sys_sendmsg+0xcd/0x170
[ 4742.370525][   T73]      do_syscall_64+0xc6/0x1e0
[ 4742.370525][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4742.370525][   T73] 
[ 4742.372754][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4742.372754][   T73]      netdev_get_by_index+0x5e/0x80
[ 4742.372754][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4742.372754][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4742.372754][   T73]      ip6_route_add+0x1c/0x140
[ 4742.372754][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4742.372754][   T73]      addrconf_add_dev+0xe2/0x170
[ 4742.372754][   T73]      inet6_addr_add+0x12f/0xa40
[ 4742.372754][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4742.372754][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4742.372754][   T73]      netlink_rcv_skb+0x130/0x360
[ 4742.372754][   T73]      netlink_unicast+0x449/0x710
[ 4742.372754][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4742.372754][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4742.372754][   T73]      ___sys_sendmsg+0xee/0x170
[ 4742.372754][   T73]      __sys_sendmsg+0xcd/0x170
[ 4742.372754][   T73]      do_syscall_64+0xc6/0x1e0
[ 4742.372754][   T73] 
[ 4742.375006][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4742.375006][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4742.375006][   T73]      ipv6_find_idev+0x102/0x170
[ 4742.375006][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4742.375006][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4742.375006][   T73]      netlink_rcv_skb+0x130/0x360
[ 4742.375006][   T73]      netlink_unicast+0x449/0x710
[ 4742.375006][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4742.375006][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4742.375006][   T73]      ___sys_sendmsg+0xee/0x170
[ 4742.375006][   T73]      __sys_sendmsg+0xcd/0x170
[ 4742.375006][   T73]      do_syscall_64+0xc6/0x1e0
[ 4742.375006][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4742.375006][   T73] 
[ 4742.376754][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4742.376754][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4742.376754][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4742.376754][   T73]      ipv6_find_idev+0x102/0x170
[ 4742.376754][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4742.376754][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4742.376754][   T73]      netlink_rcv_skb+0x130/0x360
[ 4742.376754][   T73]      netlink_unicast+0x449/0x710
[ 4742.376754][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4742.376754][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4742.376754][   T73]      ___sys_sendmsg+0xee/0x170
[ 4742.376754][   T73]      __sys_sendmsg+0xcd/0x170
[ 4742.376754][   T73]      do_syscall_64+0xc6/0x1e0
[ 4742.376754][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4742.376754][   T73] 
[ 4742.378735][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4742.379095][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4742.379095][   T73]      netdev_get_by_index+0x5e/0x80
[ 4742.379095][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4742.379095][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4742.379095][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4742.379095][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4742.379095][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4742.379095][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4742.379095][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4742.379095][   T73]      addrconf_dad_begin+0x310/0x670
[ 4742.379095][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4742.379095][   T73]      process_one_work+0x84d/0x18a0
[ 4742.379095][   T73]      worker_thread+0x587/0xd30
[ 4742.379095][   T73]      kthread+0x28a/0x350
[ 4742.379095][   T73]      ret_from_fork+0x31/0x70
[ 4742.379095][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4742.379095][   T73] 
[ 4742.381178][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4742.381178][   T73]      netdev_get_by_index+0x5e/0x80
[ 4742.381178][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4742.381178][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4742.381178][   T73]      ip6_route_add+0x1c/0x140
[ 4742.381178][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4742.381178][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4742.381178][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4742.381178][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4742.381178][   T73]      netlink_rcv_skb+0x130/0x360
[ 4742.381178][   T73]      netlink_unicast+0x449/0x710
[ 4742.381178][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4742.381178][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4742.381178][   T73]      ___sys_sendmsg+0xee/0x170
[ 4742.381178][   T73]      __sys_sendmsg+0xcd/0x170
[ 4742.381178][   T73]      do_syscall_64+0xc6/0x1e0
[ 4742.381178][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4742.381178][   T73] 
[ 4742.383461][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4742.383461][   T73]      netdev_get_by_index+0x5e/0x80
[ 4742.383461][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4742.383461][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4742.383461][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4742.383461][   T73]      ipv6_add_addr+0x411/0x2000
[ 4742.383461][   T73]      inet6_addr_add+0x30e/0xa40
[ 4742.383461][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4742.383461][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4742.383461][   T73]      netlink_rcv_skb+0x130/0x360
[ 4742.383461][   T73]      netlink_unicast+0x449/0x710
[ 4742.383461][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4742.383461][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4742.383461][   T73]      ___sys_sendmsg+0xee/0x170
[ 4742.383461][   T73]      __sys_sendmsg+0xcd/0x170
[ 4742.383461][   T73]      do_syscall_64+0xc6/0x1e0
[ 4742.383461][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4742.383461][   T73] 
[ 4742.385753][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4742.385753][   T73]      netdev_get_by_index+0x5e/0x80
[ 4742.385753][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4742.385753][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4742.385753][   T73]      ip6_route_add+0x1c/0x140
[ 4742.385753][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4742.385753][   T73]      addrconf_add_dev+0xe2/0x170
[ 4742.385753][   T73]      inet6_addr_add+0x12f/0xa40
[ 4742.385753][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4742.385753][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4742.385753][   T73]      netlink_rcv_skb+0x130/0x360
[ 4742.385753][   T73]      netlink_unicast+0x449/0x710
[ 4742.385753][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4742.385753][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4742.385753][   T73]      ___sys_sendmsg+0xee/0x170
[ 4742.385753][   T73]      __sys_sendmsg+0xcd/0x170
[ 4742.385753][   T73]      do_syscall_64+0xc6/0x1e0
[ 4742.385753][   T73] 
[ 4742.388075][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4742.388075][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4742.388075][   T73]      ipv6_find_idev+0x102/0x170
[ 4742.388075][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4742.388075][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4742.388075][   T73]      netlink_rcv_skb+0x130/0x360
[ 4742.388075][   T73]      netlink_unicast+0x449/0x710
[ 4742.388075][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4742.388075][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4742.388075][   T73]      ___sys_sendmsg+0xee/0x170
[ 4742.388075][   T73]      __sys_sendmsg+0xcd/0x170
[ 4742.388075][   T73]      do_syscall_64+0xc6/0x1e0
[ 4742.388075][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4742.388075][   T73] 
[ 4742.389842][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4742.389842][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4742.389842][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4742.389842][   T73]      ipv6_find_idev+0x102/0x170
[ 4742.389842][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4742.389842][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4742.389842][   T73]      netlink_rcv_skb+0x130/0x360
[ 4742.389842][   T73]      netlink_unicast+0x449/0x710
[ 4742.389842][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4742.389842][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4742.389842][   T73]      ___sys_sendmsg+0xee/0x170
[ 4742.389842][   T73]      __sys_sendmsg+0xcd/0x170
[ 4742.389842][   T73]      do_syscall_64+0xc6/0x1e0
[ 4742.389842][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4742.389842][   T73] 
[ 4752.631695][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4752.632185][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4752.632185][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4752.632185][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4752.632185][   T73]      fib6_nh_init+0xa22/0x1580
[ 4752.632185][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4752.632185][   T73]      ip6_route_add+0x1c/0x140
[ 4752.632185][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4752.632185][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4752.632185][   T73]      netlink_rcv_skb+0x130/0x360
[ 4752.632185][   T73]      netlink_unicast+0x449/0x710
[ 4752.632185][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4752.632185][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4752.632185][   T73]      ___sys_sendmsg+0xee/0x170
[ 4752.632185][   T73]      __sys_sendmsg+0xcd/0x170
[ 4752.632185][   T73]      do_syscall_64+0xc6/0x1e0
[ 4752.632185][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4752.632185][   T73] 
[ 4752.634129][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4752.634129][   T73]      dst_init+0x84/0x4a0
[ 4752.634129][   T73]      dst_alloc+0x97/0x150
[ 4752.634129][   T73]      ip6_dst_alloc+0x23/0x90
[ 4752.634129][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4752.634129][   T73]      ip6_pol_route+0x56f/0x840
[ 4752.634129][   T73]      fib6_rule_lookup+0x456/0x630
[ 4752.634129][   T73]      ip6_route_input+0x59c/0xa50
[ 4752.634129][   T73]      ipv6_rcv+0x397/0x810
[ 4752.634129][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4752.634129][   T73]      process_backlog+0x101/0x620
[ 4752.634129][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4752.634129][   T73]      net_rx_action+0x495/0xbe0
[ 4752.634129][   T73]      __do_softirq+0x1b5/0x7f6
[ 4752.634129][   T73] 
[ 4752.635816][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4752.635816][   T73]      netdev_get_by_index+0x5e/0x80
[ 4752.635816][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4752.635816][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4752.635816][   T73]      ip6_route_add+0x1c/0x140
[ 4752.635816][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4752.635816][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4752.635816][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4752.635816][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4752.635816][   T73]      netlink_rcv_skb+0x130/0x360
[ 4752.635816][   T73]      netlink_unicast+0x449/0x710
[ 4752.635816][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4752.635816][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4752.635816][   T73]      ___sys_sendmsg+0xee/0x170
[ 4752.635816][   T73]      __sys_sendmsg+0xcd/0x170
[ 4752.635816][   T73]      do_syscall_64+0xc6/0x1e0
[ 4752.635816][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4752.635816][   T73] 
[ 4752.637880][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4752.637880][   T73]      netdev_get_by_index+0x5e/0x80
[ 4752.637880][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4752.637880][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4752.637880][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4752.637880][   T73]      ipv6_add_addr+0x411/0x2000
[ 4752.637880][   T73]      inet6_addr_add+0x30e/0xa40
[ 4752.637880][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4752.637880][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4752.637880][   T73]      netlink_rcv_skb+0x130/0x360
[ 4752.637880][   T73]      netlink_unicast+0x449/0x710
[ 4752.637880][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4752.637880][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4752.637880][   T73]      ___sys_sendmsg+0xee/0x170
[ 4752.637880][   T73]      __sys_sendmsg+0xcd/0x170
[ 4752.637880][   T73]      do_syscall_64+0xc6/0x1e0
[ 4752.637880][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4752.637880][   T73] 
[ 4752.639935][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4752.639935][   T73]      netdev_get_by_index+0x5e/0x80
[ 4752.639935][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4752.639935][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4752.639935][   T73]      ip6_route_add+0x1c/0x140
[ 4752.639935][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4752.639935][   T73]      addrconf_add_dev+0xe2/0x170
[ 4752.639935][   T73]      inet6_addr_add+0x12f/0xa40
[ 4752.639935][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4752.639935][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4752.639935][   T73]      netlink_rcv_skb+0x130/0x360
[ 4752.639935][   T73]      netlink_unicast+0x449/0x710
[ 4752.639935][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4752.639935][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4752.639935][   T73]      ___sys_sendmsg+0xee/0x170
[ 4752.639935][   T73]      __sys_sendmsg+0xcd/0x170
[ 4752.639935][   T73]      do_syscall_64+0xc6/0x1e0
[ 4752.639935][   T73] 
[ 4752.641948][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4752.641948][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4752.641948][   T73]      ipv6_find_idev+0x102/0x170
[ 4752.641948][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4752.641948][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4752.641948][   T73]      netlink_rcv_skb+0x130/0x360
[ 4752.641948][   T73]      netlink_unicast+0x449/0x710
[ 4752.641948][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4752.641948][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4752.641948][   T73]      ___sys_sendmsg+0xee/0x170
[ 4752.641948][   T73]      __sys_sendmsg+0xcd/0x170
[ 4752.641948][   T73]      do_syscall_64+0xc6/0x1e0
[ 4752.641948][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4752.641948][   T73] 
[ 4752.643532][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4752.643532][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4752.643532][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4752.643532][   T73]      ipv6_find_idev+0x102/0x170
[ 4752.643532][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4752.643532][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4752.643532][   T73]      netlink_rcv_skb+0x130/0x360
[ 4752.643532][   T73]      netlink_unicast+0x449/0x710
[ 4752.643532][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4752.643532][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4752.643532][   T73]      ___sys_sendmsg+0xee/0x170
[ 4752.643532][   T73]      __sys_sendmsg+0xcd/0x170
[ 4752.643532][   T73]      do_syscall_64+0xc6/0x1e0
[ 4752.643532][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4752.643532][   T73] 
[ 4752.645270][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4752.645560][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4752.645560][   T73]      netdev_get_by_index+0x5e/0x80
[ 4752.645560][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4752.645560][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4752.645560][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4752.645560][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4752.645560][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4752.645560][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4752.645560][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4752.645560][   T73]      addrconf_dad_begin+0x310/0x670
[ 4752.645560][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4752.645560][   T73]      process_one_work+0x84d/0x18a0
[ 4752.645560][   T73]      worker_thread+0x587/0xd30
[ 4752.645560][   T73]      kthread+0x28a/0x350
[ 4752.645560][   T73]      ret_from_fork+0x31/0x70
[ 4752.645560][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4752.645560][   T73] 
[ 4752.647502][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4752.647502][   T73]      netdev_get_by_index+0x5e/0x80
[ 4752.647502][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4752.647502][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4752.647502][   T73]      ip6_route_add+0x1c/0x140
[ 4752.647502][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4752.647502][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4752.647502][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4752.647502][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4752.647502][   T73]      netlink_rcv_skb+0x130/0x360
[ 4752.647502][   T73]      netlink_unicast+0x449/0x710
[ 4752.647502][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4752.647502][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4752.647502][   T73]      ___sys_sendmsg+0xee/0x170
[ 4752.647502][   T73]      __sys_sendmsg+0xcd/0x170
[ 4752.647502][   T73]      do_syscall_64+0xc6/0x1e0
[ 4752.647502][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4752.647502][   T73] 
[ 4752.649534][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4752.649534][   T73]      netdev_get_by_index+0x5e/0x80
[ 4752.649534][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4752.649534][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4752.649534][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4752.649534][   T73]      ipv6_add_addr+0x411/0x2000
[ 4752.649534][   T73]      inet6_addr_add+0x30e/0xa40
[ 4752.649534][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4752.649534][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4752.649534][   T73]      netlink_rcv_skb+0x130/0x360
[ 4752.649534][   T73]      netlink_unicast+0x449/0x710
[ 4752.649534][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4752.649534][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4752.649534][   T73]      ___sys_sendmsg+0xee/0x170
[ 4752.649534][   T73]      __sys_sendmsg+0xcd/0x170
[ 4752.649534][   T73]      do_syscall_64+0xc6/0x1e0
[ 4752.649534][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4752.649534][   T73] 
[ 4752.651565][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4752.651565][   T73]      netdev_get_by_index+0x5e/0x80
[ 4752.651565][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4752.651565][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4752.651565][   T73]      ip6_route_add+0x1c/0x140
[ 4752.651565][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4752.651565][   T73]      addrconf_add_dev+0xe2/0x170
[ 4752.651565][   T73]      inet6_addr_add+0x12f/0xa40
[ 4752.651565][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4752.651565][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4752.651565][   T73]      netlink_rcv_skb+0x130/0x360
[ 4752.651565][   T73]      netlink_unicast+0x449/0x710
[ 4752.651565][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4752.651565][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4752.651565][   T73]      ___sys_sendmsg+0xee/0x170
[ 4752.651565][   T73]      __sys_sendmsg+0xcd/0x170
[ 4752.651565][   T73]      do_syscall_64+0xc6/0x1e0
[ 4752.651565][   T73] 
[ 4752.654235][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4752.654235][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4752.654235][   T73]      ipv6_find_idev+0x102/0x170
[ 4752.654235][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4752.654235][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4752.654235][   T73]      netlink_rcv_skb+0x130/0x360
[ 4752.654235][   T73]      netlink_unicast+0x449/0x710
[ 4752.654235][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4752.654235][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4752.654235][   T73]      ___sys_sendmsg+0xee/0x170
[ 4752.654235][   T73]      __sys_sendmsg+0xcd/0x170
[ 4752.654235][   T73]      do_syscall_64+0xc6/0x1e0
[ 4752.654235][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4752.654235][   T73] 
[ 4752.655809][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4752.655809][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4752.655809][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4752.655809][   T73]      ipv6_find_idev+0x102/0x170
[ 4752.655809][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4752.655809][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4752.655809][   T73]      netlink_rcv_skb+0x130/0x360
[ 4752.655809][   T73]      netlink_unicast+0x449/0x710
[ 4752.655809][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4752.655809][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4752.655809][   T73]      ___sys_sendmsg+0xee/0x170
[ 4752.655809][   T73]      __sys_sendmsg+0xcd/0x170
[ 4752.655809][   T73]      do_syscall_64+0xc6/0x1e0
[ 4752.655809][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4752.655809][   T73] 
[ 4752.657524][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4752.657815][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4752.657815][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4752.657815][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4752.657815][   T73]      fib6_nh_init+0xa22/0x1580
[ 4752.657815][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4752.657815][   T73]      ip6_route_add+0x1c/0x140
[ 4752.657815][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4752.657815][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4752.657815][   T73]      netlink_rcv_skb+0x130/0x360
[ 4752.657815][   T73]      netlink_unicast+0x449/0x710
[ 4752.657815][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4752.657815][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4752.657815][   T73]      ___sys_sendmsg+0xee/0x170
[ 4752.657815][   T73]      __sys_sendmsg+0xcd/0x170
[ 4752.657815][   T73]      do_syscall_64+0xc6/0x1e0
[ 4752.657815][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4752.657815][   T73] 
[ 4752.659910][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4752.659910][   T73]      dst_init+0x84/0x4a0
[ 4752.659910][   T73]      dst_alloc+0x97/0x150
[ 4752.659910][   T73]      ip6_dst_alloc+0x23/0x90
[ 4752.659910][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4752.659910][   T73]      ip6_pol_route+0x56f/0x840
[ 4752.659910][   T73]      fib6_rule_lookup+0x456/0x630
[ 4752.659910][   T73]      ip6_route_input+0x59c/0xa50
[ 4752.659910][   T73]      ipv6_rcv+0x397/0x810
[ 4752.659910][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4752.659910][   T73]      process_backlog+0x101/0x620
[ 4752.659910][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4752.659910][   T73]      net_rx_action+0x495/0xbe0
[ 4752.659910][   T73]      __do_softirq+0x1b5/0x7f6
[ 4752.659910][   T73] 
[ 4752.661758][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4752.661758][   T73]      netdev_get_by_index+0x5e/0x80
[ 4752.661758][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4752.661758][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4752.661758][   T73]      ip6_route_add+0x1c/0x140
[ 4752.661758][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4752.661758][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4752.661758][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4752.661758][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4752.661758][   T73]      netlink_rcv_skb+0x130/0x360
[ 4752.661758][   T73]      netlink_unicast+0x449/0x710
[ 4752.661758][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4752.661758][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4752.661758][   T73]      ___sys_sendmsg+0xee/0x170
[ 4752.661758][   T73]      __sys_sendmsg+0xcd/0x170
[ 4752.661758][   T73]      do_syscall_64+0xc6/0x1e0
[ 4752.661758][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4752.661758][   T73] 
[ 4752.664071][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4752.664071][   T73]      netdev_get_by_index+0x5e/0x80
[ 4752.664071][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4752.664071][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4752.664071][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4752.664071][   T73]      ipv6_add_addr+0x411/0x2000
[ 4752.664071][   T73]      inet6_addr_add+0x30e/0xa40
[ 4752.664071][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4752.664071][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4752.664071][   T73]      netlink_rcv_skb+0x130/0x360
[ 4752.664071][   T73]      netlink_unicast+0x449/0x710
[ 4752.664071][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4752.664071][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4752.664071][   T73]      ___sys_sendmsg+0xee/0x170
[ 4752.664071][   T73]      __sys_sendmsg+0xcd/0x170
[ 4752.664071][   T73]      do_syscall_64+0xc6/0x1e0
[ 4752.664071][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4752.664071][   T73] 
[ 4752.666282][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4752.666282][   T73]      netdev_get_by_index+0x5e/0x80
[ 4752.666282][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4752.666282][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4752.666282][   T73]      ip6_route_add+0x1c/0x140
[ 4752.666282][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4752.666282][   T73]      addrconf_add_dev+0xe2/0x170
[ 4752.666282][   T73]      inet6_addr_add+0x12f/0xa40
[ 4752.666282][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4752.666282][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4752.666282][   T73]      netlink_rcv_skb+0x130/0x360
[ 4752.666282][   T73]      netlink_unicast+0x449/0x710
[ 4752.666282][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4752.666282][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4752.666282][   T73]      ___sys_sendmsg+0xee/0x170
[ 4752.666282][   T73]      __sys_sendmsg+0xcd/0x170
[ 4752.666282][   T73]      do_syscall_64+0xc6/0x1e0
[ 4752.666282][   T73] 
[ 4752.668535][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4752.668535][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4752.668535][   T73]      ipv6_find_idev+0x102/0x170
[ 4752.668535][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4752.668535][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4752.668535][   T73]      netlink_rcv_skb+0x130/0x360
[ 4752.668535][   T73]      netlink_unicast+0x449/0x710
[ 4752.668535][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4752.668535][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4752.668535][   T73]      ___sys_sendmsg+0xee/0x170
[ 4752.668535][   T73]      __sys_sendmsg+0xcd/0x170
[ 4752.668535][   T73]      do_syscall_64+0xc6/0x1e0
[ 4752.668535][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4752.668535][   T73] 
[ 4752.670293][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4752.670293][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4752.670293][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4752.670293][   T73]      ipv6_find_idev+0x102/0x170
[ 4752.670293][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4752.670293][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4752.670293][   T73]      netlink_rcv_skb+0x130/0x360
[ 4752.670293][   T73]      netlink_unicast+0x449/0x710
[ 4752.670293][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4752.670293][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4752.670293][   T73]      ___sys_sendmsg+0xee/0x170
[ 4752.670293][   T73]      __sys_sendmsg+0xcd/0x170
[ 4752.670293][   T73]      do_syscall_64+0xc6/0x1e0
[ 4752.670293][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4752.670293][   T73] 
[ 4752.672200][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4752.672564][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4752.672564][   T73]      netdev_get_by_index+0x5e/0x80
[ 4752.672564][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4752.672564][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4752.672564][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4752.672564][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4752.672564][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4752.672564][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4752.672564][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4752.672564][   T73]      addrconf_dad_begin+0x310/0x670
[ 4752.672564][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4752.672564][   T73]      process_one_work+0x84d/0x18a0
[ 4752.672564][   T73]      worker_thread+0x587/0xd30
[ 4752.672564][   T73]      kthread+0x28a/0x350
[ 4752.672564][   T73]      ret_from_fork+0x31/0x70
[ 4752.672564][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4752.672564][   T73] 
[ 4752.674644][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4752.674644][   T73]      netdev_get_by_index+0x5e/0x80
[ 4752.674644][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4752.674644][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4752.674644][   T73]      ip6_route_add+0x1c/0x140
[ 4752.674644][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4752.674644][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4752.674644][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4752.674644][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4752.674644][   T73]      netlink_rcv_skb+0x130/0x360
[ 4752.674644][   T73]      netlink_unicast+0x449/0x710
[ 4752.674644][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4752.674644][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4752.674644][   T73]      ___sys_sendmsg+0xee/0x170
[ 4752.674644][   T73]      __sys_sendmsg+0xcd/0x170
[ 4752.674644][   T73]      do_syscall_64+0xc6/0x1e0
[ 4752.674644][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4752.674644][   T73] 
[ 4752.676982][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4752.676982][   T73]      netdev_get_by_index+0x5e/0x80
[ 4752.676982][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4752.676982][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4752.676982][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4752.676982][   T73]      ipv6_add_addr+0x411/0x2000
[ 4752.676982][   T73]      inet6_addr_add+0x30e/0xa40
[ 4752.676982][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4752.676982][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4752.676982][   T73]      netlink_rcv_skb+0x130/0x360
[ 4752.676982][   T73]      netlink_unicast+0x449/0x710
[ 4752.676982][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4752.676982][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4752.676982][   T73]      ___sys_sendmsg+0xee/0x170
[ 4752.676982][   T73]      __sys_sendmsg+0xcd/0x170
[ 4752.676982][   T73]      do_syscall_64+0xc6/0x1e0
[ 4752.676982][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4752.676982][   T73] 
[ 4752.679261][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4752.679261][   T73]      netdev_get_by_index+0x5e/0x80
[ 4752.679261][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4752.679261][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4752.679261][   T73]      ip6_route_add+0x1c/0x140
[ 4752.679261][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4752.679261][   T73]      addrconf_add_dev+0xe2/0x170
[ 4752.679261][   T73]      inet6_addr_add+0x12f/0xa40
[ 4752.679261][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4752.679261][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4752.679261][   T73]      netlink_rcv_skb+0x130/0x360
[ 4752.679261][   T73]      netlink_unicast+0x449/0x710
[ 4752.679261][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4752.679261][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4752.679261][   T73]      ___sys_sendmsg+0xee/0x170
[ 4752.679261][   T73]      __sys_sendmsg+0xcd/0x170
[ 4752.679261][   T73]      do_syscall_64+0xc6/0x1e0
[ 4752.679261][   T73] 
[ 4752.681517][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4752.681517][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4752.681517][   T73]      ipv6_find_idev+0x102/0x170
[ 4752.681517][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4752.681517][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4752.681517][   T73]      netlink_rcv_skb+0x130/0x360
[ 4752.681517][   T73]      netlink_unicast+0x449/0x710
[ 4752.681517][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4752.681517][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4752.681517][   T73]      ___sys_sendmsg+0xee/0x170
[ 4752.681517][   T73]      __sys_sendmsg+0xcd/0x170
[ 4752.681517][   T73]      do_syscall_64+0xc6/0x1e0
[ 4752.681517][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4752.681517][   T73] 
[ 4752.683278][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4752.683278][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4752.683278][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4752.683278][   T73]      ipv6_find_idev+0x102/0x170
[ 4752.683278][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4752.683278][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4752.683278][   T73]      netlink_rcv_skb+0x130/0x360
[ 4752.683278][   T73]      netlink_unicast+0x449/0x710
[ 4752.683278][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4752.683278][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4752.683278][   T73]      ___sys_sendmsg+0xee/0x170
[ 4752.683278][   T73]      __sys_sendmsg+0xcd/0x170
[ 4752.683278][   T73]      do_syscall_64+0xc6/0x1e0
[ 4752.683278][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4752.683278][   T73] 
[ 4762.927680][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4762.928205][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4762.928205][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4762.928205][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4762.928205][   T73]      fib6_nh_init+0xa22/0x1580
[ 4762.928205][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4762.928205][   T73]      ip6_route_add+0x1c/0x140
[ 4762.928205][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4762.928205][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4762.928205][   T73]      netlink_rcv_skb+0x130/0x360
[ 4762.928205][   T73]      netlink_unicast+0x449/0x710
[ 4762.928205][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4762.928205][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4762.928205][   T73]      ___sys_sendmsg+0xee/0x170
[ 4762.928205][   T73]      __sys_sendmsg+0xcd/0x170
[ 4762.928205][   T73]      do_syscall_64+0xc6/0x1e0
[ 4762.928205][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4762.928205][   T73] 
[ 4762.930376][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4762.930376][   T73]      dst_init+0x84/0x4a0
[ 4762.930376][   T73]      dst_alloc+0x97/0x150
[ 4762.930376][   T73]      ip6_dst_alloc+0x23/0x90
[ 4762.930376][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4762.930376][   T73]      ip6_pol_route+0x56f/0x840
[ 4762.930376][   T73]      fib6_rule_lookup+0x456/0x630
[ 4762.930376][   T73]      ip6_route_input+0x59c/0xa50
[ 4762.930376][   T73]      ipv6_rcv+0x397/0x810
[ 4762.930376][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4762.930376][   T73]      process_backlog+0x101/0x620
[ 4762.930376][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4762.930376][   T73]      net_rx_action+0x495/0xbe0
[ 4762.930376][   T73]      __do_softirq+0x1b5/0x7f6
[ 4762.930376][   T73] 
[ 4762.932254][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4762.932254][   T73]      netdev_get_by_index+0x5e/0x80
[ 4762.932254][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4762.932254][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4762.932254][   T73]      ip6_route_add+0x1c/0x140
[ 4762.932254][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4762.932254][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4762.932254][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4762.932254][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4762.932254][   T73]      netlink_rcv_skb+0x130/0x360
[ 4762.932254][   T73]      netlink_unicast+0x449/0x710
[ 4762.932254][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4762.932254][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4762.932254][   T73]      ___sys_sendmsg+0xee/0x170
[ 4762.932254][   T73]      __sys_sendmsg+0xcd/0x170
[ 4762.932254][   T73]      do_syscall_64+0xc6/0x1e0
[ 4762.932254][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4762.932254][   T73] 
[ 4762.934549][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4762.934549][   T73]      netdev_get_by_index+0x5e/0x80
[ 4762.934549][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4762.934549][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4762.934549][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4762.934549][   T73]      ipv6_add_addr+0x411/0x2000
[ 4762.934549][   T73]      inet6_addr_add+0x30e/0xa40
[ 4762.934549][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4762.934549][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4762.934549][   T73]      netlink_rcv_skb+0x130/0x360
[ 4762.934549][   T73]      netlink_unicast+0x449/0x710
[ 4762.934549][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4762.934549][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4762.934549][   T73]      ___sys_sendmsg+0xee/0x170
[ 4762.934549][   T73]      __sys_sendmsg+0xcd/0x170
[ 4762.934549][   T73]      do_syscall_64+0xc6/0x1e0
[ 4762.934549][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4762.934549][   T73] 
[ 4762.936829][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4762.936829][   T73]      netdev_get_by_index+0x5e/0x80
[ 4762.936829][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4762.936829][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4762.936829][   T73]      ip6_route_add+0x1c/0x140
[ 4762.936829][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4762.936829][   T73]      addrconf_add_dev+0xe2/0x170
[ 4762.936829][   T73]      inet6_addr_add+0x12f/0xa40
[ 4762.936829][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4762.936829][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4762.936829][   T73]      netlink_rcv_skb+0x130/0x360
[ 4762.936829][   T73]      netlink_unicast+0x449/0x710
[ 4762.936829][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4762.936829][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4762.936829][   T73]      ___sys_sendmsg+0xee/0x170
[ 4762.936829][   T73]      __sys_sendmsg+0xcd/0x170
[ 4762.936829][   T73]      do_syscall_64+0xc6/0x1e0
[ 4762.936829][   T73] 
[ 4762.939060][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4762.939060][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4762.939060][   T73]      ipv6_find_idev+0x102/0x170
[ 4762.939060][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4762.939060][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4762.939060][   T73]      netlink_rcv_skb+0x130/0x360
[ 4762.939060][   T73]      netlink_unicast+0x449/0x710
[ 4762.939060][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4762.939060][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4762.939060][   T73]      ___sys_sendmsg+0xee/0x170
[ 4762.939060][   T73]      __sys_sendmsg+0xcd/0x170
[ 4762.939060][   T73]      do_syscall_64+0xc6/0x1e0
[ 4762.939060][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4762.939060][   T73] 
[ 4762.940807][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4762.940807][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4762.940807][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4762.940807][   T73]      ipv6_find_idev+0x102/0x170
[ 4762.940807][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4762.940807][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4762.940807][   T73]      netlink_rcv_skb+0x130/0x360
[ 4762.940807][   T73]      netlink_unicast+0x449/0x710
[ 4762.940807][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4762.940807][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4762.940807][   T73]      ___sys_sendmsg+0xee/0x170
[ 4762.940807][   T73]      __sys_sendmsg+0xcd/0x170
[ 4762.940807][   T73]      do_syscall_64+0xc6/0x1e0
[ 4762.940807][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4762.940807][   T73] 
[ 4762.942733][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4762.943046][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4762.943046][   T73]      netdev_get_by_index+0x5e/0x80
[ 4762.943046][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4762.943046][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4762.943046][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4762.943046][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4762.943046][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4762.943046][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4762.943046][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4762.943046][   T73]      addrconf_dad_begin+0x310/0x670
[ 4762.943046][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4762.943046][   T73]      process_one_work+0x84d/0x18a0
[ 4762.943046][   T73]      worker_thread+0x587/0xd30
[ 4762.943046][   T73]      kthread+0x28a/0x350
[ 4762.943046][   T73]      ret_from_fork+0x31/0x70
[ 4762.943046][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4762.943046][   T73] 
[ 4762.945227][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4762.945227][   T73]      netdev_get_by_index+0x5e/0x80
[ 4762.945227][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4762.945227][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4762.945227][   T73]      ip6_route_add+0x1c/0x140
[ 4762.945227][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4762.945227][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4762.945227][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4762.945227][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4762.945227][   T73]      netlink_rcv_skb+0x130/0x360
[ 4762.945227][   T73]      netlink_unicast+0x449/0x710
[ 4762.945227][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4762.945227][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4762.945227][   T73]      ___sys_sendmsg+0xee/0x170
[ 4762.945227][   T73]      __sys_sendmsg+0xcd/0x170
[ 4762.945227][   T73]      do_syscall_64+0xc6/0x1e0
[ 4762.945227][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4762.945227][   T73] 
[ 4762.947488][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4762.947488][   T73]      netdev_get_by_index+0x5e/0x80
[ 4762.947488][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4762.947488][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4762.947488][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4762.947488][   T73]      ipv6_add_addr+0x411/0x2000
[ 4762.947488][   T73]      inet6_addr_add+0x30e/0xa40
[ 4762.947488][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4762.947488][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4762.947488][   T73]      netlink_rcv_skb+0x130/0x360
[ 4762.947488][   T73]      netlink_unicast+0x449/0x710
[ 4762.947488][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4762.947488][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4762.947488][   T73]      ___sys_sendmsg+0xee/0x170
[ 4762.947488][   T73]      __sys_sendmsg+0xcd/0x170
[ 4762.947488][   T73]      do_syscall_64+0xc6/0x1e0
[ 4762.947488][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4762.947488][   T73] 
[ 4762.949706][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4762.949706][   T73]      netdev_get_by_index+0x5e/0x80
[ 4762.949706][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4762.949706][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4762.949706][   T73]      ip6_route_add+0x1c/0x140
[ 4762.949706][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4762.949706][   T73]      addrconf_add_dev+0xe2/0x170
[ 4762.949706][   T73]      inet6_addr_add+0x12f/0xa40
[ 4762.949706][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4762.949706][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4762.949706][   T73]      netlink_rcv_skb+0x130/0x360
[ 4762.949706][   T73]      netlink_unicast+0x449/0x710
[ 4762.949706][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4762.949706][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4762.949706][   T73]      ___sys_sendmsg+0xee/0x170
[ 4762.949706][   T73]      __sys_sendmsg+0xcd/0x170
[ 4762.949706][   T73]      do_syscall_64+0xc6/0x1e0
[ 4762.949706][   T73] 
[ 4762.951897][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4762.951897][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4762.951897][   T73]      ipv6_find_idev+0x102/0x170
[ 4762.951897][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4762.951897][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4762.951897][   T73]      netlink_rcv_skb+0x130/0x360
[ 4762.951897][   T73]      netlink_unicast+0x449/0x710
[ 4762.951897][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4762.951897][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4762.951897][   T73]      ___sys_sendmsg+0xee/0x170
[ 4762.951897][   T73]      __sys_sendmsg+0xcd/0x170
[ 4762.951897][   T73]      do_syscall_64+0xc6/0x1e0
[ 4762.951897][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4762.951897][   T73] 
[ 4762.953662][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4762.953662][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4762.953662][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4762.953662][   T73]      ipv6_find_idev+0x102/0x170
[ 4762.953662][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4762.953662][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4762.953662][   T73]      netlink_rcv_skb+0x130/0x360
[ 4762.953662][   T73]      netlink_unicast+0x449/0x710
[ 4762.953662][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4762.953662][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4762.953662][   T73]      ___sys_sendmsg+0xee/0x170
[ 4762.953662][   T73]      __sys_sendmsg+0xcd/0x170
[ 4762.953662][   T73]      do_syscall_64+0xc6/0x1e0
[ 4762.953662][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4762.953662][   T73] 
[ 4762.955551][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4762.955894][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4762.955894][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4762.955894][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4762.955894][   T73]      fib6_nh_init+0xa22/0x1580
[ 4762.955894][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4762.955894][   T73]      ip6_route_add+0x1c/0x140
[ 4762.955894][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4762.955894][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4762.955894][   T73]      netlink_rcv_skb+0x130/0x360
[ 4762.955894][   T73]      netlink_unicast+0x449/0x710
[ 4762.955894][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4762.955894][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4762.955894][   T73]      ___sys_sendmsg+0xee/0x170
[ 4762.955894][   T73]      __sys_sendmsg+0xcd/0x170
[ 4762.955894][   T73]      do_syscall_64+0xc6/0x1e0
[ 4762.955894][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4762.955894][   T73] 
[ 4762.958212][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4762.958212][   T73]      dst_init+0x84/0x4a0
[ 4762.958212][   T73]      dst_alloc+0x97/0x150
[ 4762.958212][   T73]      ip6_dst_alloc+0x23/0x90
[ 4762.958212][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4762.958212][   T73]      ip6_pol_route+0x56f/0x840
[ 4762.958212][   T73]      fib6_rule_lookup+0x456/0x630
[ 4762.958212][   T73]      ip6_route_input+0x59c/0xa50
[ 4762.958212][   T73]      ipv6_rcv+0x397/0x810
[ 4762.958212][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4762.958212][   T73]      process_backlog+0x101/0x620
[ 4762.958212][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4762.958212][   T73]      net_rx_action+0x495/0xbe0
[ 4762.958212][   T73]      __do_softirq+0x1b5/0x7f6
[ 4762.958212][   T73] 
[ 4762.960278][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4762.960278][   T73]      netdev_get_by_index+0x5e/0x80
[ 4762.960278][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4762.960278][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4762.960278][   T73]      ip6_route_add+0x1c/0x140
[ 4762.960278][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4762.960278][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4762.960278][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4762.960278][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4762.960278][   T73]      netlink_rcv_skb+0x130/0x360
[ 4762.960278][   T73]      netlink_unicast+0x449/0x710
[ 4762.960278][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4762.960278][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4762.960278][   T73]      ___sys_sendmsg+0xee/0x170
[ 4762.960278][   T73]      __sys_sendmsg+0xcd/0x170
[ 4762.960278][   T73]      do_syscall_64+0xc6/0x1e0
[ 4762.960278][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4762.960278][   T73] 
[ 4762.962906][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4762.962906][   T73]      netdev_get_by_index+0x5e/0x80
[ 4762.962906][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4762.962906][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4762.962906][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4762.962906][   T73]      ipv6_add_addr+0x411/0x2000
[ 4762.962906][   T73]      inet6_addr_add+0x30e/0xa40
[ 4762.962906][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4762.962906][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4762.962906][   T73]      netlink_rcv_skb+0x130/0x360
[ 4762.962906][   T73]      netlink_unicast+0x449/0x710
[ 4762.962906][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4762.962906][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4762.962906][   T73]      ___sys_sendmsg+0xee/0x170
[ 4762.962906][   T73]      __sys_sendmsg+0xcd/0x170
[ 4762.962906][   T73]      do_syscall_64+0xc6/0x1e0
[ 4762.962906][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4762.962906][   T73] 
[ 4762.965427][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4762.965427][   T73]      netdev_get_by_index+0x5e/0x80
[ 4762.965427][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4762.965427][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4762.965427][   T73]      ip6_route_add+0x1c/0x140
[ 4762.965427][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4762.965427][   T73]      addrconf_add_dev+0xe2/0x170
[ 4762.965427][   T73]      inet6_addr_add+0x12f/0xa40
[ 4762.965427][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4762.965427][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4762.965427][   T73]      netlink_rcv_skb+0x130/0x360
[ 4762.965427][   T73]      netlink_unicast+0x449/0x710
[ 4762.965427][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4762.965427][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4762.965427][   T73]      ___sys_sendmsg+0xee/0x170
[ 4762.965427][   T73]      __sys_sendmsg+0xcd/0x170
[ 4762.965427][   T73]      do_syscall_64+0xc6/0x1e0
[ 4762.965427][   T73] 
[ 4762.967933][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4762.967933][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4762.967933][   T73]      ipv6_find_idev+0x102/0x170
[ 4762.967933][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4762.967933][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4762.967933][   T73]      netlink_rcv_skb+0x130/0x360
[ 4762.967933][   T73]      netlink_unicast+0x449/0x710
[ 4762.967933][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4762.967933][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4762.967933][   T73]      ___sys_sendmsg+0xee/0x170
[ 4762.967933][   T73]      __sys_sendmsg+0xcd/0x170
[ 4762.967933][   T73]      do_syscall_64+0xc6/0x1e0
[ 4762.967933][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4762.967933][   T73] 
[ 4762.969882][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4762.969882][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4762.969882][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4762.969882][   T73]      ipv6_find_idev+0x102/0x170
[ 4762.969882][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4762.969882][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4762.969882][   T73]      netlink_rcv_skb+0x130/0x360
[ 4762.969882][   T73]      netlink_unicast+0x449/0x710
[ 4762.969882][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4762.969882][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4762.969882][   T73]      ___sys_sendmsg+0xee/0x170
[ 4762.969882][   T73]      __sys_sendmsg+0xcd/0x170
[ 4762.969882][   T73]      do_syscall_64+0xc6/0x1e0
[ 4762.969882][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4762.969882][   T73] 
[ 4762.972080][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4762.972394][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4762.972394][   T73]      netdev_get_by_index+0x5e/0x80
[ 4762.972394][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4762.972394][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4762.972394][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4762.972394][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4762.972394][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4762.972394][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4762.972394][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4762.972394][   T73]      addrconf_dad_begin+0x310/0x670
[ 4762.972394][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4762.972394][   T73]      process_one_work+0x84d/0x18a0
[ 4762.972394][   T73]      worker_thread+0x587/0xd30
[ 4762.972394][   T73]      kthread+0x28a/0x350
[ 4762.972394][   T73]      ret_from_fork+0x31/0x70
[ 4762.972394][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4762.972394][   T73] 
[ 4762.974815][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4762.974815][   T73]      netdev_get_by_index+0x5e/0x80
[ 4762.974815][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4762.974815][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4762.974815][   T73]      ip6_route_add+0x1c/0x140
[ 4762.974815][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4762.974815][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4762.974815][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4762.974815][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4762.974815][   T73]      netlink_rcv_skb+0x130/0x360
[ 4762.974815][   T73]      netlink_unicast+0x449/0x710
[ 4762.974815][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4762.974815][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4762.974815][   T73]      ___sys_sendmsg+0xee/0x170
[ 4762.974815][   T73]      __sys_sendmsg+0xcd/0x170
[ 4762.974815][   T73]      do_syscall_64+0xc6/0x1e0
[ 4762.974815][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4762.974815][   T73] 
[ 4762.977329][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4762.977329][   T73]      netdev_get_by_index+0x5e/0x80
[ 4762.977329][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4762.977329][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4762.977329][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4762.977329][   T73]      ipv6_add_addr+0x411/0x2000
[ 4762.977329][   T73]      inet6_addr_add+0x30e/0xa40
[ 4762.977329][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4762.977329][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4762.977329][   T73]      netlink_rcv_skb+0x130/0x360
[ 4762.977329][   T73]      netlink_unicast+0x449/0x710
[ 4762.977329][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4762.977329][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4762.977329][   T73]      ___sys_sendmsg+0xee/0x170
[ 4762.977329][   T73]      __sys_sendmsg+0xcd/0x170
[ 4762.977329][   T73]      do_syscall_64+0xc6/0x1e0
[ 4762.977329][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4762.977329][   T73] 
[ 4762.979844][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4762.979844][   T73]      netdev_get_by_index+0x5e/0x80
[ 4762.979844][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4762.979844][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4762.979844][   T73]      ip6_route_add+0x1c/0x140
[ 4762.979844][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4762.979844][   T73]      addrconf_add_dev+0xe2/0x170
[ 4762.979844][   T73]      inet6_addr_add+0x12f/0xa40
[ 4762.979844][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4762.979844][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4762.979844][   T73]      netlink_rcv_skb+0x130/0x360
[ 4762.979844][   T73]      netlink_unicast+0x449/0x710
[ 4762.979844][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4762.979844][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4762.979844][   T73]      ___sys_sendmsg+0xee/0x170
[ 4762.979844][   T73]      __sys_sendmsg+0xcd/0x170
[ 4762.979844][   T73]      do_syscall_64+0xc6/0x1e0
[ 4762.979844][   T73] 
[ 4762.982316][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4762.982316][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4762.982316][   T73]      ipv6_find_idev+0x102/0x170
[ 4762.982316][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4762.982316][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4762.982316][   T73]      netlink_rcv_skb+0x130/0x360
[ 4762.982316][   T73]      netlink_unicast+0x449/0x710
[ 4762.982316][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4762.982316][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4762.982316][   T73]      ___sys_sendmsg+0xee/0x170
[ 4762.982316][   T73]      __sys_sendmsg+0xcd/0x170
[ 4762.982316][   T73]      do_syscall_64+0xc6/0x1e0
[ 4762.982316][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4762.982316][   T73] 
[ 4762.984275][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4762.984275][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4762.984275][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4762.984275][   T73]      ipv6_find_idev+0x102/0x170
[ 4762.984275][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4762.984275][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4762.984275][   T73]      netlink_rcv_skb+0x130/0x360
[ 4762.984275][   T73]      netlink_unicast+0x449/0x710
[ 4762.984275][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4762.984275][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4762.984275][   T73]      ___sys_sendmsg+0xee/0x170
[ 4762.984275][   T73]      __sys_sendmsg+0xcd/0x170
[ 4762.984275][   T73]      do_syscall_64+0xc6/0x1e0
[ 4762.984275][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4762.984275][   T73] 
[ 4773.127694][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4773.128218][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4773.128218][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4773.128218][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4773.128218][   T73]      fib6_nh_init+0xa22/0x1580
[ 4773.128218][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4773.128218][   T73]      ip6_route_add+0x1c/0x140
[ 4773.128218][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4773.128218][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4773.128218][   T73]      netlink_rcv_skb+0x130/0x360
[ 4773.128218][   T73]      netlink_unicast+0x449/0x710
[ 4773.128218][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4773.128218][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4773.128218][   T73]      ___sys_sendmsg+0xee/0x170
[ 4773.128218][   T73]      __sys_sendmsg+0xcd/0x170
[ 4773.128218][   T73]      do_syscall_64+0xc6/0x1e0
[ 4773.128218][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4773.128218][   T73] 
[ 4773.130373][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4773.130373][   T73]      dst_init+0x84/0x4a0
[ 4773.130373][   T73]      dst_alloc+0x97/0x150
[ 4773.130373][   T73]      ip6_dst_alloc+0x23/0x90
[ 4773.130373][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4773.130373][   T73]      ip6_pol_route+0x56f/0x840
[ 4773.130373][   T73]      fib6_rule_lookup+0x456/0x630
[ 4773.130373][   T73]      ip6_route_input+0x59c/0xa50
[ 4773.130373][   T73]      ipv6_rcv+0x397/0x810
[ 4773.130373][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4773.130373][   T73]      process_backlog+0x101/0x620
[ 4773.130373][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4773.130373][   T73]      net_rx_action+0x495/0xbe0
[ 4773.130373][   T73]      __do_softirq+0x1b5/0x7f6
[ 4773.130373][   T73] 
[ 4773.132223][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4773.132223][   T73]      netdev_get_by_index+0x5e/0x80
[ 4773.132223][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4773.132223][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4773.132223][   T73]      ip6_route_add+0x1c/0x140
[ 4773.132223][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4773.132223][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4773.132223][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4773.132223][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4773.132223][   T73]      netlink_rcv_skb+0x130/0x360
[ 4773.132223][   T73]      netlink_unicast+0x449/0x710
[ 4773.132223][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4773.132223][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4773.132223][   T73]      ___sys_sendmsg+0xee/0x170
[ 4773.132223][   T73]      __sys_sendmsg+0xcd/0x170
[ 4773.132223][   T73]      do_syscall_64+0xc6/0x1e0
[ 4773.132223][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4773.132223][   T73] 
[ 4773.134491][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4773.134491][   T73]      netdev_get_by_index+0x5e/0x80
[ 4773.134491][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4773.134491][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4773.134491][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4773.134491][   T73]      ipv6_add_addr+0x411/0x2000
[ 4773.134491][   T73]      inet6_addr_add+0x30e/0xa40
[ 4773.134491][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4773.134491][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4773.134491][   T73]      netlink_rcv_skb+0x130/0x360
[ 4773.134491][   T73]      netlink_unicast+0x449/0x710
[ 4773.134491][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4773.134491][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4773.134491][   T73]      ___sys_sendmsg+0xee/0x170
[ 4773.134491][   T73]      __sys_sendmsg+0xcd/0x170
[ 4773.134491][   T73]      do_syscall_64+0xc6/0x1e0
[ 4773.134491][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4773.134491][   T73] 
[ 4773.136744][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4773.136744][   T73]      netdev_get_by_index+0x5e/0x80
[ 4773.136744][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4773.136744][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4773.136744][   T73]      ip6_route_add+0x1c/0x140
[ 4773.136744][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4773.136744][   T73]      addrconf_add_dev+0xe2/0x170
[ 4773.136744][   T73]      inet6_addr_add+0x12f/0xa40
[ 4773.136744][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4773.136744][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4773.136744][   T73]      netlink_rcv_skb+0x130/0x360
[ 4773.136744][   T73]      netlink_unicast+0x449/0x710
[ 4773.136744][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4773.136744][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4773.136744][   T73]      ___sys_sendmsg+0xee/0x170
[ 4773.136744][   T73]      __sys_sendmsg+0xcd/0x170
[ 4773.136744][   T73]      do_syscall_64+0xc6/0x1e0
[ 4773.136744][   T73] 
[ 4773.138967][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4773.138967][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4773.138967][   T73]      ipv6_find_idev+0x102/0x170
[ 4773.138967][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4773.138967][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4773.138967][   T73]      netlink_rcv_skb+0x130/0x360
[ 4773.138967][   T73]      netlink_unicast+0x449/0x710
[ 4773.138967][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4773.138967][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4773.138967][   T73]      ___sys_sendmsg+0xee/0x170
[ 4773.138967][   T73]      __sys_sendmsg+0xcd/0x170
[ 4773.138967][   T73]      do_syscall_64+0xc6/0x1e0
[ 4773.138967][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4773.138967][   T73] 
[ 4773.140704][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4773.140704][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4773.140704][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4773.140704][   T73]      ipv6_find_idev+0x102/0x170
[ 4773.140704][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4773.140704][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4773.140704][   T73]      netlink_rcv_skb+0x130/0x360
[ 4773.140704][   T73]      netlink_unicast+0x449/0x710
[ 4773.140704][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4773.140704][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4773.140704][   T73]      ___sys_sendmsg+0xee/0x170
[ 4773.140704][   T73]      __sys_sendmsg+0xcd/0x170
[ 4773.140704][   T73]      do_syscall_64+0xc6/0x1e0
[ 4773.140704][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4773.140704][   T73] 
[ 4773.142668][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4773.142990][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4773.142990][   T73]      netdev_get_by_index+0x5e/0x80
[ 4773.142990][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4773.142990][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4773.142990][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4773.142990][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4773.142990][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4773.142990][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4773.142990][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4773.142990][   T73]      addrconf_dad_begin+0x310/0x670
[ 4773.142990][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4773.142990][   T73]      process_one_work+0x84d/0x18a0
[ 4773.142990][   T73]      worker_thread+0x587/0xd30
[ 4773.142990][   T73]      kthread+0x28a/0x350
[ 4773.142990][   T73]      ret_from_fork+0x31/0x70
[ 4773.142990][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4773.142990][   T73] 
[ 4773.145146][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4773.145146][   T73]      netdev_get_by_index+0x5e/0x80
[ 4773.145146][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4773.145146][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4773.145146][   T73]      ip6_route_add+0x1c/0x140
[ 4773.145146][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4773.145146][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4773.145146][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4773.145146][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4773.145146][   T73]      netlink_rcv_skb+0x130/0x360
[ 4773.145146][   T73]      netlink_unicast+0x449/0x710
[ 4773.145146][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4773.145146][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4773.145146][   T73]      ___sys_sendmsg+0xee/0x170
[ 4773.145146][   T73]      __sys_sendmsg+0xcd/0x170
[ 4773.145146][   T73]      do_syscall_64+0xc6/0x1e0
[ 4773.145146][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4773.145146][   T73] 
[ 4773.147405][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4773.147405][   T73]      netdev_get_by_index+0x5e/0x80
[ 4773.147405][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4773.147405][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4773.147405][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4773.147405][   T73]      ipv6_add_addr+0x411/0x2000
[ 4773.147405][   T73]      inet6_addr_add+0x30e/0xa40
[ 4773.147405][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4773.147405][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4773.147405][   T73]      netlink_rcv_skb+0x130/0x360
[ 4773.147405][   T73]      netlink_unicast+0x449/0x710
[ 4773.147405][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4773.147405][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4773.147405][   T73]      ___sys_sendmsg+0xee/0x170
[ 4773.147405][   T73]      __sys_sendmsg+0xcd/0x170
[ 4773.147405][   T73]      do_syscall_64+0xc6/0x1e0
[ 4773.147405][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4773.147405][   T73] 
[ 4773.149659][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4773.149659][   T73]      netdev_get_by_index+0x5e/0x80
[ 4773.149659][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4773.149659][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4773.149659][   T73]      ip6_route_add+0x1c/0x140
[ 4773.149659][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4773.149659][   T73]      addrconf_add_dev+0xe2/0x170
[ 4773.149659][   T73]      inet6_addr_add+0x12f/0xa40
[ 4773.149659][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4773.149659][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4773.149659][   T73]      netlink_rcv_skb+0x130/0x360
[ 4773.149659][   T73]      netlink_unicast+0x449/0x710
[ 4773.149659][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4773.149659][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4773.149659][   T73]      ___sys_sendmsg+0xee/0x170
[ 4773.149659][   T73]      __sys_sendmsg+0xcd/0x170
[ 4773.149659][   T73]      do_syscall_64+0xc6/0x1e0
[ 4773.149659][   T73] 
[ 4773.151886][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4773.151886][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4773.151886][   T73]      ipv6_find_idev+0x102/0x170
[ 4773.151886][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4773.151886][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4773.151886][   T73]      netlink_rcv_skb+0x130/0x360
[ 4773.151886][   T73]      netlink_unicast+0x449/0x710
[ 4773.151886][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4773.151886][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4773.151886][   T73]      ___sys_sendmsg+0xee/0x170
[ 4773.151886][   T73]      __sys_sendmsg+0xcd/0x170
[ 4773.151886][   T73]      do_syscall_64+0xc6/0x1e0
[ 4773.151886][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4773.151886][   T73] 
[ 4773.153634][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4773.153634][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4773.153634][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4773.153634][   T73]      ipv6_find_idev+0x102/0x170
[ 4773.153634][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4773.153634][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4773.153634][   T73]      netlink_rcv_skb+0x130/0x360
[ 4773.153634][   T73]      netlink_unicast+0x449/0x710
[ 4773.153634][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4773.153634][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4773.153634][   T73]      ___sys_sendmsg+0xee/0x170
[ 4773.153634][   T73]      __sys_sendmsg+0xcd/0x170
[ 4773.153634][   T73]      do_syscall_64+0xc6/0x1e0
[ 4773.153634][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4773.153634][   T73] 
[ 4773.155553][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4773.155877][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4773.155877][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4773.155877][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4773.155877][   T73]      fib6_nh_init+0xa22/0x1580
[ 4773.155877][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4773.155877][   T73]      ip6_route_add+0x1c/0x140
[ 4773.155877][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4773.155877][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4773.155877][   T73]      netlink_rcv_skb+0x130/0x360
[ 4773.155877][   T73]      netlink_unicast+0x449/0x710
[ 4773.155877][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4773.155877][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4773.155877][   T73]      ___sys_sendmsg+0xee/0x170
[ 4773.155877][   T73]      __sys_sendmsg+0xcd/0x170
[ 4773.155877][   T73]      do_syscall_64+0xc6/0x1e0
[ 4773.155877][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4773.155877][   T73] 
[ 4773.158225][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4773.158225][   T73]      dst_init+0x84/0x4a0
[ 4773.158225][   T73]      dst_alloc+0x97/0x150
[ 4773.158225][   T73]      ip6_dst_alloc+0x23/0x90
[ 4773.158225][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4773.158225][   T73]      ip6_pol_route+0x56f/0x840
[ 4773.158225][   T73]      fib6_rule_lookup+0x456/0x630
[ 4773.158225][   T73]      ip6_route_input+0x59c/0xa50
[ 4773.158225][   T73]      ipv6_rcv+0x397/0x810
[ 4773.158225][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4773.158225][   T73]      process_backlog+0x101/0x620
[ 4773.158225][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4773.158225][   T73]      net_rx_action+0x495/0xbe0
[ 4773.158225][   T73]      __do_softirq+0x1b5/0x7f6
[ 4773.158225][   T73] 
[ 4773.160320][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4773.160320][   T73]      netdev_get_by_index+0x5e/0x80
[ 4773.160320][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4773.160320][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4773.160320][   T73]      ip6_route_add+0x1c/0x140
[ 4773.160320][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4773.160320][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4773.160320][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4773.160320][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4773.160320][   T73]      netlink_rcv_skb+0x130/0x360
[ 4773.160320][   T73]      netlink_unicast+0x449/0x710
[ 4773.160320][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4773.160320][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4773.160320][   T73]      ___sys_sendmsg+0xee/0x170
[ 4773.160320][   T73]      __sys_sendmsg+0xcd/0x170
[ 4773.160320][   T73]      do_syscall_64+0xc6/0x1e0
[ 4773.160320][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4773.160320][   T73] 
[ 4773.162857][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4773.162857][   T73]      netdev_get_by_index+0x5e/0x80
[ 4773.162857][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4773.162857][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4773.162857][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4773.162857][   T73]      ipv6_add_addr+0x411/0x2000
[ 4773.162857][   T73]      inet6_addr_add+0x30e/0xa40
[ 4773.162857][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4773.162857][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4773.162857][   T73]      netlink_rcv_skb+0x130/0x360
[ 4773.162857][   T73]      netlink_unicast+0x449/0x710
[ 4773.162857][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4773.162857][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4773.162857][   T73]      ___sys_sendmsg+0xee/0x170
[ 4773.162857][   T73]      __sys_sendmsg+0xcd/0x170
[ 4773.162857][   T73]      do_syscall_64+0xc6/0x1e0
[ 4773.162857][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4773.162857][   T73] 
[ 4773.165364][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4773.165364][   T73]      netdev_get_by_index+0x5e/0x80
[ 4773.165364][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4773.165364][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4773.165364][   T73]      ip6_route_add+0x1c/0x140
[ 4773.165364][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4773.165364][   T73]      addrconf_add_dev+0xe2/0x170
[ 4773.165364][   T73]      inet6_addr_add+0x12f/0xa40
[ 4773.165364][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4773.165364][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4773.165364][   T73]      netlink_rcv_skb+0x130/0x360
[ 4773.165364][   T73]      netlink_unicast+0x449/0x710
[ 4773.165364][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4773.165364][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4773.165364][   T73]      ___sys_sendmsg+0xee/0x170
[ 4773.165364][   T73]      __sys_sendmsg+0xcd/0x170
[ 4773.165364][   T73]      do_syscall_64+0xc6/0x1e0
[ 4773.165364][   T73] 
[ 4773.167818][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4773.167818][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4773.167818][   T73]      ipv6_find_idev+0x102/0x170
[ 4773.167818][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4773.167818][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4773.167818][   T73]      netlink_rcv_skb+0x130/0x360
[ 4773.167818][   T73]      netlink_unicast+0x449/0x710
[ 4773.167818][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4773.167818][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4773.167818][   T73]      ___sys_sendmsg+0xee/0x170
[ 4773.167818][   T73]      __sys_sendmsg+0xcd/0x170
[ 4773.167818][   T73]      do_syscall_64+0xc6/0x1e0
[ 4773.167818][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4773.167818][   T73] 
[ 4773.169821][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4773.169821][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4773.169821][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4773.169821][   T73]      ipv6_find_idev+0x102/0x170
[ 4773.169821][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4773.169821][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4773.169821][   T73]      netlink_rcv_skb+0x130/0x360
[ 4773.169821][   T73]      netlink_unicast+0x449/0x710
[ 4773.169821][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4773.169821][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4773.169821][   T73]      ___sys_sendmsg+0xee/0x170
[ 4773.169821][   T73]      __sys_sendmsg+0xcd/0x170
[ 4773.169821][   T73]      do_syscall_64+0xc6/0x1e0
[ 4773.169821][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4773.169821][   T73] 
[ 4773.171978][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4773.172300][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4773.172300][   T73]      netdev_get_by_index+0x5e/0x80
[ 4773.172300][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4773.172300][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4773.172300][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4773.172300][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4773.172300][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4773.172300][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4773.172300][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4773.172300][   T73]      addrconf_dad_begin+0x310/0x670
[ 4773.172300][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4773.172300][   T73]      process_one_work+0x84d/0x18a0
[ 4773.172300][   T73]      worker_thread+0x587/0xd30
[ 4773.172300][   T73]      kthread+0x28a/0x350
[ 4773.172300][   T73]      ret_from_fork+0x31/0x70
[ 4773.172300][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4773.172300][   T73] 
[ 4773.174708][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4773.174708][   T73]      netdev_get_by_index+0x5e/0x80
[ 4773.174708][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4773.174708][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4773.174708][   T73]      ip6_route_add+0x1c/0x140
[ 4773.174708][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4773.174708][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4773.174708][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4773.174708][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4773.174708][   T73]      netlink_rcv_skb+0x130/0x360
[ 4773.174708][   T73]      netlink_unicast+0x449/0x710
[ 4773.174708][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4773.174708][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4773.174708][   T73]      ___sys_sendmsg+0xee/0x170
[ 4773.174708][   T73]      __sys_sendmsg+0xcd/0x170
[ 4773.174708][   T73]      do_syscall_64+0xc6/0x1e0
[ 4773.174708][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4773.174708][   T73] 
[ 4773.177236][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4773.177236][   T73]      netdev_get_by_index+0x5e/0x80
[ 4773.177236][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4773.177236][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4773.177236][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4773.177236][   T73]      ipv6_add_addr+0x411/0x2000
[ 4773.177236][   T73]      inet6_addr_add+0x30e/0xa40
[ 4773.177236][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4773.177236][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4773.177236][   T73]      netlink_rcv_skb+0x130/0x360
[ 4773.177236][   T73]      netlink_unicast+0x449/0x710
[ 4773.177236][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4773.177236][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4773.177236][   T73]      ___sys_sendmsg+0xee/0x170
[ 4773.177236][   T73]      __sys_sendmsg+0xcd/0x170
[ 4773.177236][   T73]      do_syscall_64+0xc6/0x1e0
[ 4773.177236][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4773.177236][   T73] 
[ 4773.179809][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4773.179809][   T73]      netdev_get_by_index+0x5e/0x80
[ 4773.179809][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4773.179809][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4773.179809][   T73]      ip6_route_add+0x1c/0x140
[ 4773.179809][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4773.179809][   T73]      addrconf_add_dev+0xe2/0x170
[ 4773.179809][   T73]      inet6_addr_add+0x12f/0xa40
[ 4773.179809][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4773.179809][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4773.179809][   T73]      netlink_rcv_skb+0x130/0x360
[ 4773.179809][   T73]      netlink_unicast+0x449/0x710
[ 4773.179809][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4773.179809][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4773.179809][   T73]      ___sys_sendmsg+0xee/0x170
[ 4773.179809][   T73]      __sys_sendmsg+0xcd/0x170
[ 4773.179809][   T73]      do_syscall_64+0xc6/0x1e0
[ 4773.179809][   T73] 
[ 4773.182250][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4773.182250][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4773.182250][   T73]      ipv6_find_idev+0x102/0x170
[ 4773.182250][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4773.182250][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4773.182250][   T73]      netlink_rcv_skb+0x130/0x360
[ 4773.182250][   T73]      netlink_unicast+0x449/0x710
[ 4773.182250][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4773.182250][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4773.182250][   T73]      ___sys_sendmsg+0xee/0x170
[ 4773.182250][   T73]      __sys_sendmsg+0xcd/0x170
[ 4773.182250][   T73]      do_syscall_64+0xc6/0x1e0
[ 4773.182250][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4773.182250][   T73] 
[ 4773.184229][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4773.184229][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4773.184229][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4773.184229][   T73]      ipv6_find_idev+0x102/0x170
[ 4773.184229][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4773.184229][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4773.184229][   T73]      netlink_rcv_skb+0x130/0x360
[ 4773.184229][   T73]      netlink_unicast+0x449/0x710
[ 4773.184229][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4773.184229][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4773.184229][   T73]      ___sys_sendmsg+0xee/0x170
[ 4773.184229][   T73]      __sys_sendmsg+0xcd/0x170
[ 4773.184229][   T73]      do_syscall_64+0xc6/0x1e0
[ 4773.184229][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4773.184229][   T73] 
[ 4783.191696][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4783.192271][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4783.192271][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4783.192271][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4783.192271][   T73]      fib6_nh_init+0xa22/0x1580
[ 4783.192271][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4783.192271][   T73]      ip6_route_add+0x1c/0x140
[ 4783.192271][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4783.192271][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4783.192271][   T73]      netlink_rcv_skb+0x130/0x360
[ 4783.192271][   T73]      netlink_unicast+0x449/0x710
[ 4783.192271][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4783.192271][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4783.192271][   T73]      ___sys_sendmsg+0xee/0x170
[ 4783.192271][   T73]      __sys_sendmsg+0xcd/0x170
[ 4783.192271][   T73]      do_syscall_64+0xc6/0x1e0
[ 4783.192271][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4783.192271][   T73] 
[ 4783.194431][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4783.194431][   T73]      dst_init+0x84/0x4a0
[ 4783.194431][   T73]      dst_alloc+0x97/0x150
[ 4783.194431][   T73]      ip6_dst_alloc+0x23/0x90
[ 4783.194431][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4783.194431][   T73]      ip6_pol_route+0x56f/0x840
[ 4783.194431][   T73]      fib6_rule_lookup+0x456/0x630
[ 4783.194431][   T73]      ip6_route_input+0x59c/0xa50
[ 4783.194431][   T73]      ipv6_rcv+0x397/0x810
[ 4783.194431][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4783.194431][   T73]      process_backlog+0x101/0x620
[ 4783.194431][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4783.194431][   T73]      net_rx_action+0x495/0xbe0
[ 4783.194431][   T73]      __do_softirq+0x1b5/0x7f6
[ 4783.194431][   T73] 
[ 4783.196311][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4783.196311][   T73]      netdev_get_by_index+0x5e/0x80
[ 4783.196311][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4783.196311][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4783.196311][   T73]      ip6_route_add+0x1c/0x140
[ 4783.196311][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4783.196311][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4783.196311][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4783.196311][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4783.196311][   T73]      netlink_rcv_skb+0x130/0x360
[ 4783.196311][   T73]      netlink_unicast+0x449/0x710
[ 4783.196311][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4783.196311][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4783.196311][   T73]      ___sys_sendmsg+0xee/0x170
[ 4783.196311][   T73]      __sys_sendmsg+0xcd/0x170
[ 4783.196311][   T73]      do_syscall_64+0xc6/0x1e0
[ 4783.196311][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4783.196311][   T73] 
[ 4783.198593][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4783.198593][   T73]      netdev_get_by_index+0x5e/0x80
[ 4783.198593][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4783.198593][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4783.198593][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4783.198593][   T73]      ipv6_add_addr+0x411/0x2000
[ 4783.198593][   T73]      inet6_addr_add+0x30e/0xa40
[ 4783.198593][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4783.198593][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4783.198593][   T73]      netlink_rcv_skb+0x130/0x360
[ 4783.198593][   T73]      netlink_unicast+0x449/0x710
[ 4783.198593][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4783.198593][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4783.198593][   T73]      ___sys_sendmsg+0xee/0x170
[ 4783.198593][   T73]      __sys_sendmsg+0xcd/0x170
[ 4783.198593][   T73]      do_syscall_64+0xc6/0x1e0
[ 4783.198593][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4783.198593][   T73] 
[ 4783.200864][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4783.200864][   T73]      netdev_get_by_index+0x5e/0x80
[ 4783.200864][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4783.200864][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4783.200864][   T73]      ip6_route_add+0x1c/0x140
[ 4783.200864][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4783.200864][   T73]      addrconf_add_dev+0xe2/0x170
[ 4783.200864][   T73]      inet6_addr_add+0x12f/0xa40
[ 4783.200864][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4783.200864][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4783.200864][   T73]      netlink_rcv_skb+0x130/0x360
[ 4783.200864][   T73]      netlink_unicast+0x449/0x710
[ 4783.200864][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4783.200864][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4783.200864][   T73]      ___sys_sendmsg+0xee/0x170
[ 4783.200864][   T73]      __sys_sendmsg+0xcd/0x170
[ 4783.200864][   T73]      do_syscall_64+0xc6/0x1e0
[ 4783.200864][   T73] 
[ 4783.203104][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4783.203104][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4783.203104][   T73]      ipv6_find_idev+0x102/0x170
[ 4783.203104][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4783.203104][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4783.203104][   T73]      netlink_rcv_skb+0x130/0x360
[ 4783.203104][   T73]      netlink_unicast+0x449/0x710
[ 4783.203104][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4783.203104][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4783.203104][   T73]      ___sys_sendmsg+0xee/0x170
[ 4783.203104][   T73]      __sys_sendmsg+0xcd/0x170
[ 4783.203104][   T73]      do_syscall_64+0xc6/0x1e0
[ 4783.203104][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4783.203104][   T73] 
[ 4783.204846][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4783.204846][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4783.204846][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4783.204846][   T73]      ipv6_find_idev+0x102/0x170
[ 4783.204846][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4783.204846][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4783.204846][   T73]      netlink_rcv_skb+0x130/0x360
[ 4783.204846][   T73]      netlink_unicast+0x449/0x710
[ 4783.204846][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4783.204846][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4783.204846][   T73]      ___sys_sendmsg+0xee/0x170
[ 4783.204846][   T73]      __sys_sendmsg+0xcd/0x170
[ 4783.204846][   T73]      do_syscall_64+0xc6/0x1e0
[ 4783.204846][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4783.204846][   T73] 
[ 4783.206782][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4783.207095][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4783.207095][   T73]      netdev_get_by_index+0x5e/0x80
[ 4783.207095][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4783.207095][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4783.207095][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4783.207095][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4783.207095][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4783.207095][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4783.207095][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4783.207095][   T73]      addrconf_dad_begin+0x310/0x670
[ 4783.207095][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4783.207095][   T73]      process_one_work+0x84d/0x18a0
[ 4783.207095][   T73]      worker_thread+0x587/0xd30
[ 4783.207095][   T73]      kthread+0x28a/0x350
[ 4783.207095][   T73]      ret_from_fork+0x31/0x70
[ 4783.207095][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4783.207095][   T73] 
[ 4783.209290][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4783.209290][   T73]      netdev_get_by_index+0x5e/0x80
[ 4783.209290][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4783.209290][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4783.209290][   T73]      ip6_route_add+0x1c/0x140
[ 4783.209290][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4783.209290][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4783.209290][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4783.209290][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4783.209290][   T73]      netlink_rcv_skb+0x130/0x360
[ 4783.209290][   T73]      netlink_unicast+0x449/0x710
[ 4783.209290][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4783.209290][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4783.209290][   T73]      ___sys_sendmsg+0xee/0x170
[ 4783.209290][   T73]      __sys_sendmsg+0xcd/0x170
[ 4783.209290][   T73]      do_syscall_64+0xc6/0x1e0
[ 4783.209290][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4783.209290][   T73] 
[ 4783.211566][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4783.211566][   T73]      netdev_get_by_index+0x5e/0x80
[ 4783.211566][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4783.211566][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4783.211566][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4783.211566][   T73]      ipv6_add_addr+0x411/0x2000
[ 4783.211566][   T73]      inet6_addr_add+0x30e/0xa40
[ 4783.211566][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4783.211566][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4783.211566][   T73]      netlink_rcv_skb+0x130/0x360
[ 4783.211566][   T73]      netlink_unicast+0x449/0x710
[ 4783.211566][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4783.211566][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4783.211566][   T73]      ___sys_sendmsg+0xee/0x170
[ 4783.211566][   T73]      __sys_sendmsg+0xcd/0x170
[ 4783.211566][   T73]      do_syscall_64+0xc6/0x1e0
[ 4783.211566][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4783.211566][   T73] 
[ 4783.213850][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4783.213850][   T73]      netdev_get_by_index+0x5e/0x80
[ 4783.213850][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4783.213850][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4783.213850][   T73]      ip6_route_add+0x1c/0x140
[ 4783.213850][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4783.213850][   T73]      addrconf_add_dev+0xe2/0x170
[ 4783.213850][   T73]      inet6_addr_add+0x12f/0xa40
[ 4783.213850][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4783.213850][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4783.213850][   T73]      netlink_rcv_skb+0x130/0x360
[ 4783.213850][   T73]      netlink_unicast+0x449/0x710
[ 4783.213850][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4783.213850][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4783.213850][   T73]      ___sys_sendmsg+0xee/0x170
[ 4783.213850][   T73]      __sys_sendmsg+0xcd/0x170
[ 4783.213850][   T73]      do_syscall_64+0xc6/0x1e0
[ 4783.213850][   T73] 
[ 4783.216090][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4783.216090][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4783.216090][   T73]      ipv6_find_idev+0x102/0x170
[ 4783.216090][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4783.216090][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4783.216090][   T73]      netlink_rcv_skb+0x130/0x360
[ 4783.216090][   T73]      netlink_unicast+0x449/0x710
[ 4783.216090][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4783.216090][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4783.216090][   T73]      ___sys_sendmsg+0xee/0x170
[ 4783.216090][   T73]      __sys_sendmsg+0xcd/0x170
[ 4783.216090][   T73]      do_syscall_64+0xc6/0x1e0
[ 4783.216090][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4783.216090][   T73] 
[ 4783.217836][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4783.217836][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4783.217836][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4783.217836][   T73]      ipv6_find_idev+0x102/0x170
[ 4783.217836][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4783.217836][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4783.217836][   T73]      netlink_rcv_skb+0x130/0x360
[ 4783.217836][   T73]      netlink_unicast+0x449/0x710
[ 4783.217836][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4783.217836][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4783.217836][   T73]      ___sys_sendmsg+0xee/0x170
[ 4783.217836][   T73]      __sys_sendmsg+0xcd/0x170
[ 4783.217836][   T73]      do_syscall_64+0xc6/0x1e0
[ 4783.217836][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4783.217836][   T73] 
[ 4783.219780][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4783.220086][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4783.220086][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4783.220086][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4783.220086][   T73]      fib6_nh_init+0xa22/0x1580
[ 4783.220086][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4783.220086][   T73]      ip6_route_add+0x1c/0x140
[ 4783.220086][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4783.220086][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4783.220086][   T73]      netlink_rcv_skb+0x130/0x360
[ 4783.220086][   T73]      netlink_unicast+0x449/0x710
[ 4783.220086][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4783.220086][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4783.220086][   T73]      ___sys_sendmsg+0xee/0x170
[ 4783.220086][   T73]      __sys_sendmsg+0xcd/0x170
[ 4783.220086][   T73]      do_syscall_64+0xc6/0x1e0
[ 4783.220086][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4783.220086][   T73] 
[ 4783.222375][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4783.222375][   T73]      dst_init+0x84/0x4a0
[ 4783.222375][   T73]      dst_alloc+0x97/0x150
[ 4783.222375][   T73]      ip6_dst_alloc+0x23/0x90
[ 4783.222375][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4783.222375][   T73]      ip6_pol_route+0x56f/0x840
[ 4783.222375][   T73]      fib6_rule_lookup+0x456/0x630
[ 4783.222375][   T73]      ip6_route_input+0x59c/0xa50
[ 4783.222375][   T73]      ipv6_rcv+0x397/0x810
[ 4783.222375][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4783.222375][   T73]      process_backlog+0x101/0x620
[ 4783.222375][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4783.222375][   T73]      net_rx_action+0x495/0xbe0
[ 4783.222375][   T73]      __do_softirq+0x1b5/0x7f6
[ 4783.222375][   T73] 
[ 4783.224388][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4783.224388][   T73]      netdev_get_by_index+0x5e/0x80
[ 4783.224388][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4783.224388][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4783.224388][   T73]      ip6_route_add+0x1c/0x140
[ 4783.224388][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4783.224388][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4783.224388][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4783.224388][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4783.224388][   T73]      netlink_rcv_skb+0x130/0x360
[ 4783.224388][   T73]      netlink_unicast+0x449/0x710
[ 4783.224388][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4783.224388][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4783.224388][   T73]      ___sys_sendmsg+0xee/0x170
[ 4783.224388][   T73]      __sys_sendmsg+0xcd/0x170
[ 4783.224388][   T73]      do_syscall_64+0xc6/0x1e0
[ 4783.224388][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4783.224388][   T73] 
[ 4783.226789][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4783.226789][   T73]      netdev_get_by_index+0x5e/0x80
[ 4783.226789][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4783.226789][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4783.226789][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4783.226789][   T73]      ipv6_add_addr+0x411/0x2000
[ 4783.226789][   T73]      inet6_addr_add+0x30e/0xa40
[ 4783.226789][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4783.226789][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4783.226789][   T73]      netlink_rcv_skb+0x130/0x360
[ 4783.226789][   T73]      netlink_unicast+0x449/0x710
[ 4783.226789][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4783.226789][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4783.226789][   T73]      ___sys_sendmsg+0xee/0x170
[ 4783.226789][   T73]      __sys_sendmsg+0xcd/0x170
[ 4783.226789][   T73]      do_syscall_64+0xc6/0x1e0
[ 4783.226789][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4783.226789][   T73] 
[ 4783.229180][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4783.229180][   T73]      netdev_get_by_index+0x5e/0x80
[ 4783.229180][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4783.229180][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4783.229180][   T73]      ip6_route_add+0x1c/0x140
[ 4783.229180][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4783.229180][   T73]      addrconf_add_dev+0xe2/0x170
[ 4783.229180][   T73]      inet6_addr_add+0x12f/0xa40
[ 4783.229180][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4783.229180][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4783.229180][   T73]      netlink_rcv_skb+0x130/0x360
[ 4783.229180][   T73]      netlink_unicast+0x449/0x710
[ 4783.229180][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4783.229180][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4783.229180][   T73]      ___sys_sendmsg+0xee/0x170
[ 4783.229180][   T73]      __sys_sendmsg+0xcd/0x170
[ 4783.229180][   T73]      do_syscall_64+0xc6/0x1e0
[ 4783.229180][   T73] 
[ 4783.231557][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4783.231557][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4783.231557][   T73]      ipv6_find_idev+0x102/0x170
[ 4783.231557][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4783.231557][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4783.231557][   T73]      netlink_rcv_skb+0x130/0x360
[ 4783.231557][   T73]      netlink_unicast+0x449/0x710
[ 4783.231557][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4783.231557][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4783.231557][   T73]      ___sys_sendmsg+0xee/0x170
[ 4783.231557][   T73]      __sys_sendmsg+0xcd/0x170
[ 4783.231557][   T73]      do_syscall_64+0xc6/0x1e0
[ 4783.231557][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4783.231557][   T73] 
[ 4783.233456][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4783.233456][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4783.233456][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4783.233456][   T73]      ipv6_find_idev+0x102/0x170
[ 4783.233456][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4783.233456][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4783.233456][   T73]      netlink_rcv_skb+0x130/0x360
[ 4783.233456][   T73]      netlink_unicast+0x449/0x710
[ 4783.233456][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4783.233456][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4783.233456][   T73]      ___sys_sendmsg+0xee/0x170
[ 4783.233456][   T73]      __sys_sendmsg+0xcd/0x170
[ 4783.233456][   T73]      do_syscall_64+0xc6/0x1e0
[ 4783.233456][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4783.233456][   T73] 
[ 4783.235513][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4783.236257][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4783.236257][   T73]      netdev_get_by_index+0x5e/0x80
[ 4783.236257][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4783.236257][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4783.236257][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4783.236257][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4783.236257][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4783.236257][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4783.236257][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4783.236257][   T73]      addrconf_dad_begin+0x310/0x670
[ 4783.236257][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4783.236257][   T73]      process_one_work+0x84d/0x18a0
[ 4783.236257][   T73]      worker_thread+0x587/0xd30
[ 4783.236257][   T73]      kthread+0x28a/0x350
[ 4783.236257][   T73]      ret_from_fork+0x31/0x70
[ 4783.236257][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4783.236257][   T73] 
[ 4783.238429][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4783.238429][   T73]      netdev_get_by_index+0x5e/0x80
[ 4783.238429][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4783.238429][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4783.238429][   T73]      ip6_route_add+0x1c/0x140
[ 4783.238429][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4783.238429][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4783.238429][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4783.238429][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4783.238429][   T73]      netlink_rcv_skb+0x130/0x360
[ 4783.238429][   T73]      netlink_unicast+0x449/0x710
[ 4783.238429][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4783.238429][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4783.238429][   T73]      ___sys_sendmsg+0xee/0x170
[ 4783.238429][   T73]      __sys_sendmsg+0xcd/0x170
[ 4783.238429][   T73]      do_syscall_64+0xc6/0x1e0
[ 4783.238429][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4783.238429][   T73] 
[ 4783.240761][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4783.240761][   T73]      netdev_get_by_index+0x5e/0x80
[ 4783.240761][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4783.240761][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4783.240761][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4783.240761][   T73]      ipv6_add_addr+0x411/0x2000
[ 4783.240761][   T73]      inet6_addr_add+0x30e/0xa40
[ 4783.240761][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4783.240761][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4783.240761][   T73]      netlink_rcv_skb+0x130/0x360
[ 4783.240761][   T73]      netlink_unicast+0x449/0x710
[ 4783.240761][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4783.240761][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4783.240761][   T73]      ___sys_sendmsg+0xee/0x170
[ 4783.240761][   T73]      __sys_sendmsg+0xcd/0x170
[ 4783.240761][   T73]      do_syscall_64+0xc6/0x1e0
[ 4783.240761][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4783.240761][   T73] 
[ 4783.243166][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4783.243166][   T73]      netdev_get_by_index+0x5e/0x80
[ 4783.243166][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4783.243166][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4783.243166][   T73]      ip6_route_add+0x1c/0x140
[ 4783.243166][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4783.243166][   T73]      addrconf_add_dev+0xe2/0x170
[ 4783.243166][   T73]      inet6_addr_add+0x12f/0xa40
[ 4783.243166][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4783.243166][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4783.243166][   T73]      netlink_rcv_skb+0x130/0x360
[ 4783.243166][   T73]      netlink_unicast+0x449/0x710
[ 4783.243166][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4783.243166][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4783.243166][   T73]      ___sys_sendmsg+0xee/0x170
[ 4783.243166][   T73]      __sys_sendmsg+0xcd/0x170
[ 4783.243166][   T73]      do_syscall_64+0xc6/0x1e0
[ 4783.243166][   T73] 
[ 4783.245483][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4783.245483][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4783.245483][   T73]      ipv6_find_idev+0x102/0x170
[ 4783.245483][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4783.245483][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4783.245483][   T73]      netlink_rcv_skb+0x130/0x360
[ 4783.245483][   T73]      netlink_unicast+0x449/0x710
[ 4783.245483][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4783.245483][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4783.245483][   T73]      ___sys_sendmsg+0xee/0x170
[ 4783.245483][   T73]      __sys_sendmsg+0xcd/0x170
[ 4783.245483][   T73]      do_syscall_64+0xc6/0x1e0
[ 4783.245483][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4783.245483][   T73] 
[ 4783.247454][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4783.247454][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4783.247454][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4783.247454][   T73]      ipv6_find_idev+0x102/0x170
[ 4783.247454][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4783.247454][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4783.247454][   T73]      netlink_rcv_skb+0x130/0x360
[ 4783.247454][   T73]      netlink_unicast+0x449/0x710
[ 4783.247454][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4783.247454][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4783.247454][   T73]      ___sys_sendmsg+0xee/0x170
[ 4783.247454][   T73]      __sys_sendmsg+0xcd/0x170
[ 4783.247454][   T73]      do_syscall_64+0xc6/0x1e0
[ 4783.247454][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4783.247454][   T73] 
[ 4793.487695][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4793.488294][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4793.488294][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4793.488294][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4793.488294][   T73]      fib6_nh_init+0xa22/0x1580
[ 4793.488294][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4793.488294][   T73]      ip6_route_add+0x1c/0x140
[ 4793.488294][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4793.488294][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4793.488294][   T73]      netlink_rcv_skb+0x130/0x360
[ 4793.488294][   T73]      netlink_unicast+0x449/0x710
[ 4793.488294][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4793.488294][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4793.488294][   T73]      ___sys_sendmsg+0xee/0x170
[ 4793.488294][   T73]      __sys_sendmsg+0xcd/0x170
[ 4793.488294][   T73]      do_syscall_64+0xc6/0x1e0
[ 4793.488294][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4793.488294][   T73] 
[ 4793.490464][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4793.490464][   T73]      dst_init+0x84/0x4a0
[ 4793.490464][   T73]      dst_alloc+0x97/0x150
[ 4793.490464][   T73]      ip6_dst_alloc+0x23/0x90
[ 4793.490464][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4793.490464][   T73]      ip6_pol_route+0x56f/0x840
[ 4793.490464][   T73]      fib6_rule_lookup+0x456/0x630
[ 4793.490464][   T73]      ip6_route_input+0x59c/0xa50
[ 4793.490464][   T73]      ipv6_rcv+0x397/0x810
[ 4793.490464][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4793.490464][   T73]      process_backlog+0x101/0x620
[ 4793.490464][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4793.490464][   T73]      net_rx_action+0x495/0xbe0
[ 4793.490464][   T73]      __do_softirq+0x1b5/0x7f6
[ 4793.490464][   T73] 
[ 4793.492355][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4793.492355][   T73]      netdev_get_by_index+0x5e/0x80
[ 4793.492355][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4793.492355][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4793.492355][   T73]      ip6_route_add+0x1c/0x140
[ 4793.492355][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4793.492355][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4793.492355][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4793.492355][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4793.492355][   T73]      netlink_rcv_skb+0x130/0x360
[ 4793.492355][   T73]      netlink_unicast+0x449/0x710
[ 4793.492355][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4793.492355][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4793.492355][   T73]      ___sys_sendmsg+0xee/0x170
[ 4793.492355][   T73]      __sys_sendmsg+0xcd/0x170
[ 4793.492355][   T73]      do_syscall_64+0xc6/0x1e0
[ 4793.492355][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4793.492355][   T73] 
[ 4793.494636][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4793.494636][   T73]      netdev_get_by_index+0x5e/0x80
[ 4793.494636][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4793.494636][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4793.494636][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4793.494636][   T73]      ipv6_add_addr+0x411/0x2000
[ 4793.494636][   T73]      inet6_addr_add+0x30e/0xa40
[ 4793.494636][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4793.494636][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4793.494636][   T73]      netlink_rcv_skb+0x130/0x360
[ 4793.494636][   T73]      netlink_unicast+0x449/0x710
[ 4793.494636][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4793.494636][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4793.494636][   T73]      ___sys_sendmsg+0xee/0x170
[ 4793.494636][   T73]      __sys_sendmsg+0xcd/0x170
[ 4793.494636][   T73]      do_syscall_64+0xc6/0x1e0
[ 4793.494636][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4793.494636][   T73] 
[ 4793.496903][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4793.496903][   T73]      netdev_get_by_index+0x5e/0x80
[ 4793.496903][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4793.496903][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4793.496903][   T73]      ip6_route_add+0x1c/0x140
[ 4793.496903][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4793.496903][   T73]      addrconf_add_dev+0xe2/0x170
[ 4793.496903][   T73]      inet6_addr_add+0x12f/0xa40
[ 4793.496903][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4793.496903][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4793.496903][   T73]      netlink_rcv_skb+0x130/0x360
[ 4793.496903][   T73]      netlink_unicast+0x449/0x710
[ 4793.496903][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4793.496903][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4793.496903][   T73]      ___sys_sendmsg+0xee/0x170
[ 4793.496903][   T73]      __sys_sendmsg+0xcd/0x170
[ 4793.496903][   T73]      do_syscall_64+0xc6/0x1e0
[ 4793.496903][   T73] 
[ 4793.499151][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4793.499151][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4793.499151][   T73]      ipv6_find_idev+0x102/0x170
[ 4793.499151][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4793.499151][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4793.499151][   T73]      netlink_rcv_skb+0x130/0x360
[ 4793.499151][   T73]      netlink_unicast+0x449/0x710
[ 4793.499151][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4793.499151][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4793.499151][   T73]      ___sys_sendmsg+0xee/0x170
[ 4793.499151][   T73]      __sys_sendmsg+0xcd/0x170
[ 4793.499151][   T73]      do_syscall_64+0xc6/0x1e0
[ 4793.499151][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4793.499151][   T73] 
[ 4793.500894][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4793.500894][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4793.500894][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4793.500894][   T73]      ipv6_find_idev+0x102/0x170
[ 4793.500894][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4793.500894][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4793.500894][   T73]      netlink_rcv_skb+0x130/0x360
[ 4793.500894][   T73]      netlink_unicast+0x449/0x710
[ 4793.500894][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4793.500894][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4793.500894][   T73]      ___sys_sendmsg+0xee/0x170
[ 4793.500894][   T73]      __sys_sendmsg+0xcd/0x170
[ 4793.500894][   T73]      do_syscall_64+0xc6/0x1e0
[ 4793.500894][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4793.500894][   T73] 
[ 4793.502828][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4793.503140][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4793.503140][   T73]      netdev_get_by_index+0x5e/0x80
[ 4793.503140][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4793.503140][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4793.503140][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4793.503140][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4793.503140][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4793.503140][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4793.503140][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4793.503140][   T73]      addrconf_dad_begin+0x310/0x670
[ 4793.503140][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4793.503140][   T73]      process_one_work+0x84d/0x18a0
[ 4793.503140][   T73]      worker_thread+0x587/0xd30
[ 4793.503140][   T73]      kthread+0x28a/0x350
[ 4793.503140][   T73]      ret_from_fork+0x31/0x70
[ 4793.503140][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4793.503140][   T73] 
[ 4793.505314][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4793.505314][   T73]      netdev_get_by_index+0x5e/0x80
[ 4793.505314][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4793.505314][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4793.505314][   T73]      ip6_route_add+0x1c/0x140
[ 4793.505314][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4793.505314][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4793.505314][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4793.505314][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4793.505314][   T73]      netlink_rcv_skb+0x130/0x360
[ 4793.505314][   T73]      netlink_unicast+0x449/0x710
[ 4793.505314][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4793.505314][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4793.505314][   T73]      ___sys_sendmsg+0xee/0x170
[ 4793.505314][   T73]      __sys_sendmsg+0xcd/0x170
[ 4793.505314][   T73]      do_syscall_64+0xc6/0x1e0
[ 4793.505314][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4793.505314][   T73] 
[ 4793.508143][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4793.508143][   T73]      netdev_get_by_index+0x5e/0x80
[ 4793.508143][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4793.508143][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4793.508143][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4793.508143][   T73]      ipv6_add_addr+0x411/0x2000
[ 4793.508143][   T73]      inet6_addr_add+0x30e/0xa40
[ 4793.508143][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4793.508143][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4793.508143][   T73]      netlink_rcv_skb+0x130/0x360
[ 4793.508143][   T73]      netlink_unicast+0x449/0x710
[ 4793.508143][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4793.508143][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4793.508143][   T73]      ___sys_sendmsg+0xee/0x170
[ 4793.508143][   T73]      __sys_sendmsg+0xcd/0x170
[ 4793.508143][   T73]      do_syscall_64+0xc6/0x1e0
[ 4793.508143][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4793.508143][   T73] 
[ 4793.510412][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4793.510412][   T73]      netdev_get_by_index+0x5e/0x80
[ 4793.510412][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4793.510412][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4793.510412][   T73]      ip6_route_add+0x1c/0x140
[ 4793.510412][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4793.510412][   T73]      addrconf_add_dev+0xe2/0x170
[ 4793.510412][   T73]      inet6_addr_add+0x12f/0xa40
[ 4793.510412][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4793.510412][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4793.510412][   T73]      netlink_rcv_skb+0x130/0x360
[ 4793.510412][   T73]      netlink_unicast+0x449/0x710
[ 4793.510412][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4793.510412][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4793.510412][   T73]      ___sys_sendmsg+0xee/0x170
[ 4793.510412][   T73]      __sys_sendmsg+0xcd/0x170
[ 4793.510412][   T73]      do_syscall_64+0xc6/0x1e0
[ 4793.510412][   T73] 
[ 4793.512662][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4793.512662][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4793.512662][   T73]      ipv6_find_idev+0x102/0x170
[ 4793.512662][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4793.512662][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4793.512662][   T73]      netlink_rcv_skb+0x130/0x360
[ 4793.512662][   T73]      netlink_unicast+0x449/0x710
[ 4793.512662][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4793.512662][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4793.512662][   T73]      ___sys_sendmsg+0xee/0x170
[ 4793.512662][   T73]      __sys_sendmsg+0xcd/0x170
[ 4793.512662][   T73]      do_syscall_64+0xc6/0x1e0
[ 4793.512662][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4793.512662][   T73] 
[ 4793.514421][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4793.514421][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4793.514421][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4793.514421][   T73]      ipv6_find_idev+0x102/0x170
[ 4793.514421][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4793.514421][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4793.514421][   T73]      netlink_rcv_skb+0x130/0x360
[ 4793.514421][   T73]      netlink_unicast+0x449/0x710
[ 4793.514421][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4793.514421][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4793.514421][   T73]      ___sys_sendmsg+0xee/0x170
[ 4793.514421][   T73]      __sys_sendmsg+0xcd/0x170
[ 4793.514421][   T73]      do_syscall_64+0xc6/0x1e0
[ 4793.514421][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4793.514421][   T73] 
[ 4793.516341][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4793.516640][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4793.516640][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4793.516640][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4793.516640][   T73]      fib6_nh_init+0xa22/0x1580
[ 4793.516640][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4793.516640][   T73]      ip6_route_add+0x1c/0x140
[ 4793.516640][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4793.516640][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4793.516640][   T73]      netlink_rcv_skb+0x130/0x360
[ 4793.516640][   T73]      netlink_unicast+0x449/0x710
[ 4793.516640][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4793.516640][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4793.516640][   T73]      ___sys_sendmsg+0xee/0x170
[ 4793.516640][   T73]      __sys_sendmsg+0xcd/0x170
[ 4793.516640][   T73]      do_syscall_64+0xc6/0x1e0
[ 4793.516640][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4793.516640][   T73] 
[ 4793.521143][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4793.521143][   T73]      dst_init+0x84/0x4a0
[ 4793.521143][   T73]      dst_alloc+0x97/0x150
[ 4793.521143][   T73]      ip6_dst_alloc+0x23/0x90
[ 4793.521143][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4793.521143][   T73]      ip6_pol_route+0x56f/0x840
[ 4793.521143][   T73]      fib6_rule_lookup+0x456/0x630
[ 4793.521143][   T73]      ip6_route_input+0x59c/0xa50
[ 4793.521143][   T73]      ipv6_rcv+0x397/0x810
[ 4793.521143][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4793.521143][   T73]      process_backlog+0x101/0x620
[ 4793.521143][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4793.521143][   T73]      net_rx_action+0x495/0xbe0
[ 4793.521143][   T73]      __do_softirq+0x1b5/0x7f6
[ 4793.521143][   T73] 
[ 4793.523269][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4793.523269][   T73]      netdev_get_by_index+0x5e/0x80
[ 4793.523269][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4793.523269][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4793.523269][   T73]      ip6_route_add+0x1c/0x140
[ 4793.523269][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4793.523269][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4793.523269][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4793.523269][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4793.523269][   T73]      netlink_rcv_skb+0x130/0x360
[ 4793.523269][   T73]      netlink_unicast+0x449/0x710
[ 4793.523269][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4793.523269][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4793.523269][   T73]      ___sys_sendmsg+0xee/0x170
[ 4793.523269][   T73]      __sys_sendmsg+0xcd/0x170
[ 4793.523269][   T73]      do_syscall_64+0xc6/0x1e0
[ 4793.523269][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4793.523269][   T73] 
[ 4793.525792][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4793.525792][   T73]      netdev_get_by_index+0x5e/0x80
[ 4793.525792][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4793.525792][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4793.525792][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4793.525792][   T73]      ipv6_add_addr+0x411/0x2000
[ 4793.525792][   T73]      inet6_addr_add+0x30e/0xa40
[ 4793.525792][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4793.525792][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4793.525792][   T73]      netlink_rcv_skb+0x130/0x360
[ 4793.525792][   T73]      netlink_unicast+0x449/0x710
[ 4793.525792][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4793.525792][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4793.525792][   T73]      ___sys_sendmsg+0xee/0x170
[ 4793.525792][   T73]      __sys_sendmsg+0xcd/0x170
[ 4793.525792][   T73]      do_syscall_64+0xc6/0x1e0
[ 4793.525792][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4793.525792][   T73] 
[ 4793.528323][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4793.528323][   T73]      netdev_get_by_index+0x5e/0x80
[ 4793.528323][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4793.528323][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4793.528323][   T73]      ip6_route_add+0x1c/0x140
[ 4793.528323][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4793.528323][   T73]      addrconf_add_dev+0xe2/0x170
[ 4793.528323][   T73]      inet6_addr_add+0x12f/0xa40
[ 4793.528323][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4793.528323][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4793.528323][   T73]      netlink_rcv_skb+0x130/0x360
[ 4793.528323][   T73]      netlink_unicast+0x449/0x710
[ 4793.528323][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4793.528323][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4793.528323][   T73]      ___sys_sendmsg+0xee/0x170
[ 4793.528323][   T73]      __sys_sendmsg+0xcd/0x170
[ 4793.528323][   T73]      do_syscall_64+0xc6/0x1e0
[ 4793.528323][   T73] 
[ 4793.530809][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4793.530809][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4793.530809][   T73]      ipv6_find_idev+0x102/0x170
[ 4793.530809][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4793.530809][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4793.530809][   T73]      netlink_rcv_skb+0x130/0x360
[ 4793.530809][   T73]      netlink_unicast+0x449/0x710
[ 4793.530809][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4793.530809][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4793.530809][   T73]      ___sys_sendmsg+0xee/0x170
[ 4793.530809][   T73]      __sys_sendmsg+0xcd/0x170
[ 4793.530809][   T73]      do_syscall_64+0xc6/0x1e0
[ 4793.530809][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4793.530809][   T73] 
[ 4793.532833][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4793.532833][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4793.532833][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4793.532833][   T73]      ipv6_find_idev+0x102/0x170
[ 4793.532833][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4793.532833][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4793.532833][   T73]      netlink_rcv_skb+0x130/0x360
[ 4793.532833][   T73]      netlink_unicast+0x449/0x710
[ 4793.532833][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4793.532833][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4793.532833][   T73]      ___sys_sendmsg+0xee/0x170
[ 4793.532833][   T73]      __sys_sendmsg+0xcd/0x170
[ 4793.532833][   T73]      do_syscall_64+0xc6/0x1e0
[ 4793.532833][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4793.532833][   T73] 
[ 4793.534948][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4793.535265][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4793.535265][   T73]      netdev_get_by_index+0x5e/0x80
[ 4793.535265][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4793.535265][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4793.535265][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4793.535265][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4793.535265][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4793.535265][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4793.535265][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4793.535265][   T73]      addrconf_dad_begin+0x310/0x670
[ 4793.535265][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4793.535265][   T73]      process_one_work+0x84d/0x18a0
[ 4793.535265][   T73]      worker_thread+0x587/0xd30
[ 4793.535265][   T73]      kthread+0x28a/0x350
[ 4793.535265][   T73]      ret_from_fork+0x31/0x70
[ 4793.535265][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4793.535265][   T73] 
[ 4793.537699][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4793.537699][   T73]      netdev_get_by_index+0x5e/0x80
[ 4793.537699][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4793.537699][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4793.537699][   T73]      ip6_route_add+0x1c/0x140
[ 4793.537699][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4793.537699][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4793.537699][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4793.537699][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4793.537699][   T73]      netlink_rcv_skb+0x130/0x360
[ 4793.537699][   T73]      netlink_unicast+0x449/0x710
[ 4793.537699][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4793.537699][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4793.537699][   T73]      ___sys_sendmsg+0xee/0x170
[ 4793.537699][   T73]      __sys_sendmsg+0xcd/0x170
[ 4793.537699][   T73]      do_syscall_64+0xc6/0x1e0
[ 4793.537699][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4793.537699][   T73] 
[ 4793.540219][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4793.540219][   T73]      netdev_get_by_index+0x5e/0x80
[ 4793.540219][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4793.540219][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4793.540219][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4793.540219][   T73]      ipv6_add_addr+0x411/0x2000
[ 4793.540219][   T73]      inet6_addr_add+0x30e/0xa40
[ 4793.540219][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4793.540219][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4793.540219][   T73]      netlink_rcv_skb+0x130/0x360
[ 4793.540219][   T73]      netlink_unicast+0x449/0x710
[ 4793.540219][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4793.540219][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4793.540219][   T73]      ___sys_sendmsg+0xee/0x170
[ 4793.540219][   T73]      __sys_sendmsg+0xcd/0x170
[ 4793.540219][   T73]      do_syscall_64+0xc6/0x1e0
[ 4793.540219][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4793.540219][   T73] 
[ 4793.542754][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4793.542754][   T73]      netdev_get_by_index+0x5e/0x80
[ 4793.542754][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4793.542754][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4793.542754][   T73]      ip6_route_add+0x1c/0x140
[ 4793.542754][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4793.542754][   T73]      addrconf_add_dev+0xe2/0x170
[ 4793.542754][   T73]      inet6_addr_add+0x12f/0xa40
[ 4793.542754][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4793.542754][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4793.542754][   T73]      netlink_rcv_skb+0x130/0x360
[ 4793.542754][   T73]      netlink_unicast+0x449/0x710
[ 4793.542754][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4793.542754][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4793.542754][   T73]      ___sys_sendmsg+0xee/0x170
[ 4793.542754][   T73]      __sys_sendmsg+0xcd/0x170
[ 4793.542754][   T73]      do_syscall_64+0xc6/0x1e0
[ 4793.542754][   T73] 
[ 4793.545211][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4793.545211][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4793.545211][   T73]      ipv6_find_idev+0x102/0x170
[ 4793.545211][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4793.545211][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4793.545211][   T73]      netlink_rcv_skb+0x130/0x360
[ 4793.545211][   T73]      netlink_unicast+0x449/0x710
[ 4793.545211][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4793.545211][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4793.545211][   T73]      ___sys_sendmsg+0xee/0x170
[ 4793.545211][   T73]      __sys_sendmsg+0xcd/0x170
[ 4793.545211][   T73]      do_syscall_64+0xc6/0x1e0
[ 4793.545211][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4793.545211][   T73] 
[ 4793.547149][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4793.547149][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4793.547149][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4793.547149][   T73]      ipv6_find_idev+0x102/0x170
[ 4793.547149][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4793.547149][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4793.547149][   T73]      netlink_rcv_skb+0x130/0x360
[ 4793.547149][   T73]      netlink_unicast+0x449/0x710
[ 4793.547149][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4793.547149][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4793.547149][   T73]      ___sys_sendmsg+0xee/0x170
[ 4793.547149][   T73]      __sys_sendmsg+0xcd/0x170
[ 4793.547149][   T73]      do_syscall_64+0xc6/0x1e0
[ 4793.547149][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4793.547149][   T73] 
[ 4803.791705][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4803.792208][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4803.792208][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4803.792208][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4803.792208][   T73]      fib6_nh_init+0xa22/0x1580
[ 4803.792208][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4803.792208][   T73]      ip6_route_add+0x1c/0x140
[ 4803.792208][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4803.792208][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4803.792208][   T73]      netlink_rcv_skb+0x130/0x360
[ 4803.792208][   T73]      netlink_unicast+0x449/0x710
[ 4803.792208][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4803.792208][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4803.792208][   T73]      ___sys_sendmsg+0xee/0x170
[ 4803.792208][   T73]      __sys_sendmsg+0xcd/0x170
[ 4803.792208][   T73]      do_syscall_64+0xc6/0x1e0
[ 4803.792208][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4803.792208][   T73] 
[ 4803.794141][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4803.794141][   T73]      dst_init+0x84/0x4a0
[ 4803.794141][   T73]      dst_alloc+0x97/0x150
[ 4803.794141][   T73]      ip6_dst_alloc+0x23/0x90
[ 4803.794141][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4803.794141][   T73]      ip6_pol_route+0x56f/0x840
[ 4803.794141][   T73]      fib6_rule_lookup+0x456/0x630
[ 4803.794141][   T73]      ip6_route_input+0x59c/0xa50
[ 4803.794141][   T73]      ipv6_rcv+0x397/0x810
[ 4803.794141][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4803.794141][   T73]      process_backlog+0x101/0x620
[ 4803.794141][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4803.794141][   T73]      net_rx_action+0x495/0xbe0
[ 4803.794141][   T73]      __do_softirq+0x1b5/0x7f6
[ 4803.794141][   T73] 
[ 4803.795814][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4803.795814][   T73]      netdev_get_by_index+0x5e/0x80
[ 4803.795814][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4803.795814][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4803.795814][   T73]      ip6_route_add+0x1c/0x140
[ 4803.795814][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4803.795814][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4803.795814][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4803.795814][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4803.795814][   T73]      netlink_rcv_skb+0x130/0x360
[ 4803.795814][   T73]      netlink_unicast+0x449/0x710
[ 4803.795814][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4803.795814][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4803.795814][   T73]      ___sys_sendmsg+0xee/0x170
[ 4803.795814][   T73]      __sys_sendmsg+0xcd/0x170
[ 4803.795814][   T73]      do_syscall_64+0xc6/0x1e0
[ 4803.795814][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4803.795814][   T73] 
[ 4803.797865][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4803.797865][   T73]      netdev_get_by_index+0x5e/0x80
[ 4803.797865][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4803.797865][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4803.797865][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4803.797865][   T73]      ipv6_add_addr+0x411/0x2000
[ 4803.797865][   T73]      inet6_addr_add+0x30e/0xa40
[ 4803.797865][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4803.797865][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4803.797865][   T73]      netlink_rcv_skb+0x130/0x360
[ 4803.797865][   T73]      netlink_unicast+0x449/0x710
[ 4803.797865][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4803.797865][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4803.797865][   T73]      ___sys_sendmsg+0xee/0x170
[ 4803.797865][   T73]      __sys_sendmsg+0xcd/0x170
[ 4803.797865][   T73]      do_syscall_64+0xc6/0x1e0
[ 4803.797865][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4803.797865][   T73] 
[ 4803.799905][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4803.799905][   T73]      netdev_get_by_index+0x5e/0x80
[ 4803.799905][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4803.799905][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4803.799905][   T73]      ip6_route_add+0x1c/0x140
[ 4803.799905][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4803.799905][   T73]      addrconf_add_dev+0xe2/0x170
[ 4803.799905][   T73]      inet6_addr_add+0x12f/0xa40
[ 4803.799905][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4803.799905][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4803.799905][   T73]      netlink_rcv_skb+0x130/0x360
[ 4803.799905][   T73]      netlink_unicast+0x449/0x710
[ 4803.799905][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4803.799905][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4803.799905][   T73]      ___sys_sendmsg+0xee/0x170
[ 4803.799905][   T73]      __sys_sendmsg+0xcd/0x170
[ 4803.799905][   T73]      do_syscall_64+0xc6/0x1e0
[ 4803.799905][   T73] 
[ 4803.801914][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4803.801914][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4803.801914][   T73]      ipv6_find_idev+0x102/0x170
[ 4803.801914][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4803.801914][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4803.801914][   T73]      netlink_rcv_skb+0x130/0x360
[ 4803.801914][   T73]      netlink_unicast+0x449/0x710
[ 4803.801914][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4803.801914][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4803.801914][   T73]      ___sys_sendmsg+0xee/0x170
[ 4803.801914][   T73]      __sys_sendmsg+0xcd/0x170
[ 4803.801914][   T73]      do_syscall_64+0xc6/0x1e0
[ 4803.801914][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4803.801914][   T73] 
[ 4803.803494][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4803.803494][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4803.803494][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4803.803494][   T73]      ipv6_find_idev+0x102/0x170
[ 4803.803494][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4803.803494][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4803.803494][   T73]      netlink_rcv_skb+0x130/0x360
[ 4803.803494][   T73]      netlink_unicast+0x449/0x710
[ 4803.803494][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4803.803494][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4803.803494][   T73]      ___sys_sendmsg+0xee/0x170
[ 4803.803494][   T73]      __sys_sendmsg+0xcd/0x170
[ 4803.803494][   T73]      do_syscall_64+0xc6/0x1e0
[ 4803.803494][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4803.803494][   T73] 
[ 4803.805228][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4803.805526][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4803.805526][   T73]      netdev_get_by_index+0x5e/0x80
[ 4803.805526][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4803.805526][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4803.805526][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4803.805526][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4803.805526][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4803.805526][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4803.805526][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4803.805526][   T73]      addrconf_dad_begin+0x310/0x670
[ 4803.805526][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4803.805526][   T73]      process_one_work+0x84d/0x18a0
[ 4803.805526][   T73]      worker_thread+0x587/0xd30
[ 4803.805526][   T73]      kthread+0x28a/0x350
[ 4803.805526][   T73]      ret_from_fork+0x31/0x70
[ 4803.805526][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4803.805526][   T73] 
[ 4803.807478][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4803.807478][   T73]      netdev_get_by_index+0x5e/0x80
[ 4803.807478][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4803.807478][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4803.807478][   T73]      ip6_route_add+0x1c/0x140
[ 4803.807478][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4803.807478][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4803.807478][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4803.807478][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4803.807478][   T73]      netlink_rcv_skb+0x130/0x360
[ 4803.807478][   T73]      netlink_unicast+0x449/0x710
[ 4803.807478][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4803.807478][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4803.807478][   T73]      ___sys_sendmsg+0xee/0x170
[ 4803.807478][   T73]      __sys_sendmsg+0xcd/0x170
[ 4803.807478][   T73]      do_syscall_64+0xc6/0x1e0
[ 4803.807478][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4803.807478][   T73] 
[ 4803.809524][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4803.809524][   T73]      netdev_get_by_index+0x5e/0x80
[ 4803.809524][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4803.809524][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4803.809524][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4803.809524][   T73]      ipv6_add_addr+0x411/0x2000
[ 4803.809524][   T73]      inet6_addr_add+0x30e/0xa40
[ 4803.809524][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4803.809524][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4803.809524][   T73]      netlink_rcv_skb+0x130/0x360
[ 4803.809524][   T73]      netlink_unicast+0x449/0x710
[ 4803.809524][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4803.809524][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4803.809524][   T73]      ___sys_sendmsg+0xee/0x170
[ 4803.809524][   T73]      __sys_sendmsg+0xcd/0x170
[ 4803.809524][   T73]      do_syscall_64+0xc6/0x1e0
[ 4803.809524][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4803.809524][   T73] 
[ 4803.811572][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4803.811572][   T73]      netdev_get_by_index+0x5e/0x80
[ 4803.811572][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4803.811572][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4803.811572][   T73]      ip6_route_add+0x1c/0x140
[ 4803.811572][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4803.811572][   T73]      addrconf_add_dev+0xe2/0x170
[ 4803.811572][   T73]      inet6_addr_add+0x12f/0xa40
[ 4803.811572][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4803.811572][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4803.811572][   T73]      netlink_rcv_skb+0x130/0x360
[ 4803.811572][   T73]      netlink_unicast+0x449/0x710
[ 4803.811572][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4803.811572][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4803.811572][   T73]      ___sys_sendmsg+0xee/0x170
[ 4803.811572][   T73]      __sys_sendmsg+0xcd/0x170
[ 4803.811572][   T73]      do_syscall_64+0xc6/0x1e0
[ 4803.811572][   T73] 
[ 4803.816275][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4803.816275][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4803.816275][   T73]      ipv6_find_idev+0x102/0x170
[ 4803.816275][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4803.816275][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4803.816275][   T73]      netlink_rcv_skb+0x130/0x360
[ 4803.816275][   T73]      netlink_unicast+0x449/0x710
[ 4803.816275][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4803.816275][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4803.816275][   T73]      ___sys_sendmsg+0xee/0x170
[ 4803.816275][   T73]      __sys_sendmsg+0xcd/0x170
[ 4803.816275][   T73]      do_syscall_64+0xc6/0x1e0
[ 4803.816275][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4803.816275][   T73] 
[ 4803.817860][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4803.817860][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4803.817860][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4803.817860][   T73]      ipv6_find_idev+0x102/0x170
[ 4803.817860][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4803.817860][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4803.817860][   T73]      netlink_rcv_skb+0x130/0x360
[ 4803.817860][   T73]      netlink_unicast+0x449/0x710
[ 4803.817860][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4803.817860][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4803.817860][   T73]      ___sys_sendmsg+0xee/0x170
[ 4803.817860][   T73]      __sys_sendmsg+0xcd/0x170
[ 4803.817860][   T73]      do_syscall_64+0xc6/0x1e0
[ 4803.817860][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4803.817860][   T73] 
[ 4803.819590][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4803.819891][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4803.819891][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4803.819891][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4803.819891][   T73]      fib6_nh_init+0xa22/0x1580
[ 4803.819891][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4803.819891][   T73]      ip6_route_add+0x1c/0x140
[ 4803.819891][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4803.819891][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4803.819891][   T73]      netlink_rcv_skb+0x130/0x360
[ 4803.819891][   T73]      netlink_unicast+0x449/0x710
[ 4803.819891][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4803.819891][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4803.819891][   T73]      ___sys_sendmsg+0xee/0x170
[ 4803.819891][   T73]      __sys_sendmsg+0xcd/0x170
[ 4803.819891][   T73]      do_syscall_64+0xc6/0x1e0
[ 4803.819891][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4803.819891][   T73] 
[ 4803.822006][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4803.822006][   T73]      dst_init+0x84/0x4a0
[ 4803.822006][   T73]      dst_alloc+0x97/0x150
[ 4803.822006][   T73]      ip6_dst_alloc+0x23/0x90
[ 4803.822006][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4803.822006][   T73]      ip6_pol_route+0x56f/0x840
[ 4803.822006][   T73]      fib6_rule_lookup+0x456/0x630
[ 4803.822006][   T73]      ip6_route_input+0x59c/0xa50
[ 4803.822006][   T73]      ipv6_rcv+0x397/0x810
[ 4803.822006][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4803.822006][   T73]      process_backlog+0x101/0x620
[ 4803.822006][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4803.822006][   T73]      net_rx_action+0x495/0xbe0
[ 4803.822006][   T73]      __do_softirq+0x1b5/0x7f6
[ 4803.822006][   T73] 
[ 4803.823940][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4803.823940][   T73]      netdev_get_by_index+0x5e/0x80
[ 4803.823940][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4803.823940][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4803.823940][   T73]      ip6_route_add+0x1c/0x140
[ 4803.823940][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4803.823940][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4803.823940][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4803.823940][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4803.823940][   T73]      netlink_rcv_skb+0x130/0x360
[ 4803.823940][   T73]      netlink_unicast+0x449/0x710
[ 4803.823940][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4803.823940][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4803.823940][   T73]      ___sys_sendmsg+0xee/0x170
[ 4803.823940][   T73]      __sys_sendmsg+0xcd/0x170
[ 4803.823940][   T73]      do_syscall_64+0xc6/0x1e0
[ 4803.823940][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4803.823940][   T73] 
[ 4803.826223][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4803.826223][   T73]      netdev_get_by_index+0x5e/0x80
[ 4803.826223][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4803.826223][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4803.826223][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4803.826223][   T73]      ipv6_add_addr+0x411/0x2000
[ 4803.826223][   T73]      inet6_addr_add+0x30e/0xa40
[ 4803.826223][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4803.826223][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4803.826223][   T73]      netlink_rcv_skb+0x130/0x360
[ 4803.826223][   T73]      netlink_unicast+0x449/0x710
[ 4803.826223][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4803.826223][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4803.826223][   T73]      ___sys_sendmsg+0xee/0x170
[ 4803.826223][   T73]      __sys_sendmsg+0xcd/0x170
[ 4803.826223][   T73]      do_syscall_64+0xc6/0x1e0
[ 4803.826223][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4803.826223][   T73] 
[ 4803.828448][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4803.828448][   T73]      netdev_get_by_index+0x5e/0x80
[ 4803.828448][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4803.828448][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4803.828448][   T73]      ip6_route_add+0x1c/0x140
[ 4803.828448][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4803.828448][   T73]      addrconf_add_dev+0xe2/0x170
[ 4803.828448][   T73]      inet6_addr_add+0x12f/0xa40
[ 4803.828448][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4803.828448][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4803.828448][   T73]      netlink_rcv_skb+0x130/0x360
[ 4803.828448][   T73]      netlink_unicast+0x449/0x710
[ 4803.828448][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4803.828448][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4803.828448][   T73]      ___sys_sendmsg+0xee/0x170
[ 4803.828448][   T73]      __sys_sendmsg+0xcd/0x170
[ 4803.828448][   T73]      do_syscall_64+0xc6/0x1e0
[ 4803.828448][   T73] 
[ 4803.830701][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4803.830701][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4803.830701][   T73]      ipv6_find_idev+0x102/0x170
[ 4803.830701][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4803.830701][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4803.830701][   T73]      netlink_rcv_skb+0x130/0x360
[ 4803.830701][   T73]      netlink_unicast+0x449/0x710
[ 4803.830701][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4803.830701][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4803.830701][   T73]      ___sys_sendmsg+0xee/0x170
[ 4803.830701][   T73]      __sys_sendmsg+0xcd/0x170
[ 4803.830701][   T73]      do_syscall_64+0xc6/0x1e0
[ 4803.830701][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4803.830701][   T73] 
[ 4803.832531][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4803.832531][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4803.832531][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4803.832531][   T73]      ipv6_find_idev+0x102/0x170
[ 4803.832531][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4803.832531][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4803.832531][   T73]      netlink_rcv_skb+0x130/0x360
[ 4803.832531][   T73]      netlink_unicast+0x449/0x710
[ 4803.832531][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4803.832531][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4803.832531][   T73]      ___sys_sendmsg+0xee/0x170
[ 4803.832531][   T73]      __sys_sendmsg+0xcd/0x170
[ 4803.832531][   T73]      do_syscall_64+0xc6/0x1e0
[ 4803.832531][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4803.832531][   T73] 
[ 4803.834451][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4803.835253][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4803.835253][   T73]      netdev_get_by_index+0x5e/0x80
[ 4803.835253][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4803.835253][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4803.835253][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4803.835253][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4803.835253][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4803.835253][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4803.835253][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4803.835253][   T73]      addrconf_dad_begin+0x310/0x670
[ 4803.835253][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4803.835253][   T73]      process_one_work+0x84d/0x18a0
[ 4803.835253][   T73]      worker_thread+0x587/0xd30
[ 4803.835253][   T73]      kthread+0x28a/0x350
[ 4803.835253][   T73]      ret_from_fork+0x31/0x70
[ 4803.835253][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4803.835253][   T73] 
[ 4803.837223][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4803.837223][   T73]      netdev_get_by_index+0x5e/0x80
[ 4803.837223][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4803.837223][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4803.837223][   T73]      ip6_route_add+0x1c/0x140
[ 4803.837223][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4803.837223][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4803.837223][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4803.837223][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4803.837223][   T73]      netlink_rcv_skb+0x130/0x360
[ 4803.837223][   T73]      netlink_unicast+0x449/0x710
[ 4803.837223][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4803.837223][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4803.837223][   T73]      ___sys_sendmsg+0xee/0x170
[ 4803.837223][   T73]      __sys_sendmsg+0xcd/0x170
[ 4803.837223][   T73]      do_syscall_64+0xc6/0x1e0
[ 4803.837223][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4803.837223][   T73] 
[ 4803.839251][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4803.839251][   T73]      netdev_get_by_index+0x5e/0x80
[ 4803.839251][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4803.839251][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4803.839251][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4803.839251][   T73]      ipv6_add_addr+0x411/0x2000
[ 4803.839251][   T73]      inet6_addr_add+0x30e/0xa40
[ 4803.839251][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4803.839251][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4803.839251][   T73]      netlink_rcv_skb+0x130/0x360
[ 4803.839251][   T73]      netlink_unicast+0x449/0x710
[ 4803.839251][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4803.839251][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4803.839251][   T73]      ___sys_sendmsg+0xee/0x170
[ 4803.839251][   T73]      __sys_sendmsg+0xcd/0x170
[ 4803.839251][   T73]      do_syscall_64+0xc6/0x1e0
[ 4803.839251][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4803.839251][   T73] 
[ 4803.841553][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4803.841553][   T73]      netdev_get_by_index+0x5e/0x80
[ 4803.841553][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4803.841553][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4803.841553][   T73]      ip6_route_add+0x1c/0x140
[ 4803.841553][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4803.841553][   T73]      addrconf_add_dev+0xe2/0x170
[ 4803.841553][   T73]      inet6_addr_add+0x12f/0xa40
[ 4803.841553][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4803.841553][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4803.841553][   T73]      netlink_rcv_skb+0x130/0x360
[ 4803.841553][   T73]      netlink_unicast+0x449/0x710
[ 4803.841553][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4803.841553][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4803.841553][   T73]      ___sys_sendmsg+0xee/0x170
[ 4803.841553][   T73]      __sys_sendmsg+0xcd/0x170
[ 4803.841553][   T73]      do_syscall_64+0xc6/0x1e0
[ 4803.841553][   T73] 
[ 4803.843815][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4803.843815][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4803.843815][   T73]      ipv6_find_idev+0x102/0x170
[ 4803.843815][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4803.843815][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4803.843815][   T73]      netlink_rcv_skb+0x130/0x360
[ 4803.843815][   T73]      netlink_unicast+0x449/0x710
[ 4803.843815][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4803.843815][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4803.843815][   T73]      ___sys_sendmsg+0xee/0x170
[ 4803.843815][   T73]      __sys_sendmsg+0xcd/0x170
[ 4803.843815][   T73]      do_syscall_64+0xc6/0x1e0
[ 4803.843815][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4803.843815][   T73] 
[ 4803.845632][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4803.845632][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4803.845632][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4803.845632][   T73]      ipv6_find_idev+0x102/0x170
[ 4803.845632][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4803.845632][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4803.845632][   T73]      netlink_rcv_skb+0x130/0x360
[ 4803.845632][   T73]      netlink_unicast+0x449/0x710
[ 4803.845632][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4803.845632][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4803.845632][   T73]      ___sys_sendmsg+0xee/0x170
[ 4803.845632][   T73]      __sys_sendmsg+0xcd/0x170
[ 4803.845632][   T73]      do_syscall_64+0xc6/0x1e0
[ 4803.845632][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4803.845632][   T73] 
[ 4813.871675][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4813.872123][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4813.872123][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4813.872123][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4813.872123][   T73]      fib6_nh_init+0xa22/0x1580
[ 4813.872123][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4813.872123][   T73]      ip6_route_add+0x1c/0x140
[ 4813.872123][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4813.872123][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4813.872123][   T73]      netlink_rcv_skb+0x130/0x360
[ 4813.872123][   T73]      netlink_unicast+0x449/0x710
[ 4813.872123][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4813.872123][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4813.872123][   T73]      ___sys_sendmsg+0xee/0x170
[ 4813.872123][   T73]      __sys_sendmsg+0xcd/0x170
[ 4813.872123][   T73]      do_syscall_64+0xc6/0x1e0
[ 4813.872123][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4813.872123][   T73] 
[ 4813.874060][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4813.874060][   T73]      dst_init+0x84/0x4a0
[ 4813.874060][   T73]      dst_alloc+0x97/0x150
[ 4813.874060][   T73]      ip6_dst_alloc+0x23/0x90
[ 4813.874060][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4813.874060][   T73]      ip6_pol_route+0x56f/0x840
[ 4813.874060][   T73]      fib6_rule_lookup+0x456/0x630
[ 4813.874060][   T73]      ip6_route_input+0x59c/0xa50
[ 4813.874060][   T73]      ipv6_rcv+0x397/0x810
[ 4813.874060][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4813.874060][   T73]      process_backlog+0x101/0x620
[ 4813.874060][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4813.874060][   T73]      net_rx_action+0x495/0xbe0
[ 4813.874060][   T73]      __do_softirq+0x1b5/0x7f6
[ 4813.874060][   T73] 
[ 4813.875731][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4813.875731][   T73]      netdev_get_by_index+0x5e/0x80
[ 4813.875731][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4813.875731][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4813.875731][   T73]      ip6_route_add+0x1c/0x140
[ 4813.875731][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4813.875731][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4813.875731][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4813.875731][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4813.875731][   T73]      netlink_rcv_skb+0x130/0x360
[ 4813.875731][   T73]      netlink_unicast+0x449/0x710
[ 4813.875731][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4813.875731][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4813.875731][   T73]      ___sys_sendmsg+0xee/0x170
[ 4813.875731][   T73]      __sys_sendmsg+0xcd/0x170
[ 4813.875731][   T73]      do_syscall_64+0xc6/0x1e0
[ 4813.875731][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4813.875731][   T73] 
[ 4813.877763][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4813.877763][   T73]      netdev_get_by_index+0x5e/0x80
[ 4813.877763][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4813.877763][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4813.877763][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4813.877763][   T73]      ipv6_add_addr+0x411/0x2000
[ 4813.877763][   T73]      inet6_addr_add+0x30e/0xa40
[ 4813.877763][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4813.877763][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4813.877763][   T73]      netlink_rcv_skb+0x130/0x360
[ 4813.877763][   T73]      netlink_unicast+0x449/0x710
[ 4813.877763][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4813.877763][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4813.877763][   T73]      ___sys_sendmsg+0xee/0x170
[ 4813.877763][   T73]      __sys_sendmsg+0xcd/0x170
[ 4813.877763][   T73]      do_syscall_64+0xc6/0x1e0
[ 4813.877763][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4813.877763][   T73] 
[ 4813.879799][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4813.879799][   T73]      netdev_get_by_index+0x5e/0x80
[ 4813.879799][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4813.879799][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4813.879799][   T73]      ip6_route_add+0x1c/0x140
[ 4813.879799][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4813.879799][   T73]      addrconf_add_dev+0xe2/0x170
[ 4813.879799][   T73]      inet6_addr_add+0x12f/0xa40
[ 4813.879799][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4813.879799][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4813.879799][   T73]      netlink_rcv_skb+0x130/0x360
[ 4813.879799][   T73]      netlink_unicast+0x449/0x710
[ 4813.879799][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4813.879799][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4813.879799][   T73]      ___sys_sendmsg+0xee/0x170
[ 4813.879799][   T73]      __sys_sendmsg+0xcd/0x170
[ 4813.879799][   T73]      do_syscall_64+0xc6/0x1e0
[ 4813.879799][   T73] 
[ 4813.881808][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4813.881808][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4813.881808][   T73]      ipv6_find_idev+0x102/0x170
[ 4813.881808][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4813.881808][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4813.881808][   T73]      netlink_rcv_skb+0x130/0x360
[ 4813.881808][   T73]      netlink_unicast+0x449/0x710
[ 4813.881808][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4813.881808][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4813.881808][   T73]      ___sys_sendmsg+0xee/0x170
[ 4813.881808][   T73]      __sys_sendmsg+0xcd/0x170
[ 4813.881808][   T73]      do_syscall_64+0xc6/0x1e0
[ 4813.881808][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4813.881808][   T73] 
[ 4813.883378][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4813.883378][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4813.883378][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4813.883378][   T73]      ipv6_find_idev+0x102/0x170
[ 4813.883378][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4813.883378][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4813.883378][   T73]      netlink_rcv_skb+0x130/0x360
[ 4813.883378][   T73]      netlink_unicast+0x449/0x710
[ 4813.883378][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4813.883378][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4813.883378][   T73]      ___sys_sendmsg+0xee/0x170
[ 4813.883378][   T73]      __sys_sendmsg+0xcd/0x170
[ 4813.883378][   T73]      do_syscall_64+0xc6/0x1e0
[ 4813.883378][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4813.883378][   T73] 
[ 4813.885100][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4813.885405][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4813.885405][   T73]      netdev_get_by_index+0x5e/0x80
[ 4813.885405][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4813.885405][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4813.885405][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4813.885405][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4813.885405][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4813.885405][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4813.885405][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4813.885405][   T73]      addrconf_dad_begin+0x310/0x670
[ 4813.885405][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4813.885405][   T73]      process_one_work+0x84d/0x18a0
[ 4813.885405][   T73]      worker_thread+0x587/0xd30
[ 4813.885405][   T73]      kthread+0x28a/0x350
[ 4813.885405][   T73]      ret_from_fork+0x31/0x70
[ 4813.885405][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4813.885405][   T73] 
[ 4813.887355][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4813.887355][   T73]      netdev_get_by_index+0x5e/0x80
[ 4813.887355][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4813.887355][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4813.887355][   T73]      ip6_route_add+0x1c/0x140
[ 4813.887355][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4813.887355][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4813.887355][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4813.887355][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4813.887355][   T73]      netlink_rcv_skb+0x130/0x360
[ 4813.887355][   T73]      netlink_unicast+0x449/0x710
[ 4813.887355][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4813.887355][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4813.887355][   T73]      ___sys_sendmsg+0xee/0x170
[ 4813.887355][   T73]      __sys_sendmsg+0xcd/0x170
[ 4813.887355][   T73]      do_syscall_64+0xc6/0x1e0
[ 4813.887355][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4813.887355][   T73] 
[ 4813.889404][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4813.889404][   T73]      netdev_get_by_index+0x5e/0x80
[ 4813.889404][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4813.889404][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4813.889404][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4813.889404][   T73]      ipv6_add_addr+0x411/0x2000
[ 4813.889404][   T73]      inet6_addr_add+0x30e/0xa40
[ 4813.889404][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4813.889404][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4813.889404][   T73]      netlink_rcv_skb+0x130/0x360
[ 4813.889404][   T73]      netlink_unicast+0x449/0x710
[ 4813.889404][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4813.889404][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4813.889404][   T73]      ___sys_sendmsg+0xee/0x170
[ 4813.889404][   T73]      __sys_sendmsg+0xcd/0x170
[ 4813.889404][   T73]      do_syscall_64+0xc6/0x1e0
[ 4813.889404][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4813.889404][   T73] 
[ 4813.891453][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4813.891453][   T73]      netdev_get_by_index+0x5e/0x80
[ 4813.891453][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4813.891453][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4813.891453][   T73]      ip6_route_add+0x1c/0x140
[ 4813.891453][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4813.891453][   T73]      addrconf_add_dev+0xe2/0x170
[ 4813.891453][   T73]      inet6_addr_add+0x12f/0xa40
[ 4813.891453][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4813.891453][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4813.891453][   T73]      netlink_rcv_skb+0x130/0x360
[ 4813.891453][   T73]      netlink_unicast+0x449/0x710
[ 4813.891453][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4813.891453][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4813.891453][   T73]      ___sys_sendmsg+0xee/0x170
[ 4813.891453][   T73]      __sys_sendmsg+0xcd/0x170
[ 4813.891453][   T73]      do_syscall_64+0xc6/0x1e0
[ 4813.891453][   T73] 
[ 4813.893470][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4813.893470][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4813.893470][   T73]      ipv6_find_idev+0x102/0x170
[ 4813.893470][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4813.893470][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4813.893470][   T73]      netlink_rcv_skb+0x130/0x360
[ 4813.893470][   T73]      netlink_unicast+0x449/0x710
[ 4813.893470][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4813.893470][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4813.893470][   T73]      ___sys_sendmsg+0xee/0x170
[ 4813.893470][   T73]      __sys_sendmsg+0xcd/0x170
[ 4813.893470][   T73]      do_syscall_64+0xc6/0x1e0
[ 4813.893470][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4813.893470][   T73] 
[ 4813.895030][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4813.895030][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4813.895030][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4813.895030][   T73]      ipv6_find_idev+0x102/0x170
[ 4813.895030][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4813.895030][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4813.895030][   T73]      netlink_rcv_skb+0x130/0x360
[ 4813.895030][   T73]      netlink_unicast+0x449/0x710
[ 4813.895030][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4813.895030][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4813.895030][   T73]      ___sys_sendmsg+0xee/0x170
[ 4813.895030][   T73]      __sys_sendmsg+0xcd/0x170
[ 4813.895030][   T73]      do_syscall_64+0xc6/0x1e0
[ 4813.895030][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4813.895030][   T73] 
[ 4813.896731][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4813.897014][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4813.897014][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4813.897014][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4813.897014][   T73]      fib6_nh_init+0xa22/0x1580
[ 4813.897014][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4813.897014][   T73]      ip6_route_add+0x1c/0x140
[ 4813.897014][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4813.897014][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4813.897014][   T73]      netlink_rcv_skb+0x130/0x360
[ 4813.897014][   T73]      netlink_unicast+0x449/0x710
[ 4813.897014][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4813.897014][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4813.897014][   T73]      ___sys_sendmsg+0xee/0x170
[ 4813.897014][   T73]      __sys_sendmsg+0xcd/0x170
[ 4813.897014][   T73]      do_syscall_64+0xc6/0x1e0
[ 4813.897014][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4813.897014][   T73] 
[ 4813.899095][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4813.899095][   T73]      dst_init+0x84/0x4a0
[ 4813.899095][   T73]      dst_alloc+0x97/0x150
[ 4813.899095][   T73]      ip6_dst_alloc+0x23/0x90
[ 4813.899095][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4813.899095][   T73]      ip6_pol_route+0x56f/0x840
[ 4813.899095][   T73]      fib6_rule_lookup+0x456/0x630
[ 4813.899095][   T73]      ip6_route_input+0x59c/0xa50
[ 4813.899095][   T73]      ipv6_rcv+0x397/0x810
[ 4813.899095][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4813.899095][   T73]      process_backlog+0x101/0x620
[ 4813.899095][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4813.899095][   T73]      net_rx_action+0x495/0xbe0
[ 4813.899095][   T73]      __do_softirq+0x1b5/0x7f6
[ 4813.899095][   T73] 
[ 4813.900931][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4813.900931][   T73]      netdev_get_by_index+0x5e/0x80
[ 4813.900931][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4813.900931][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4813.900931][   T73]      ip6_route_add+0x1c/0x140
[ 4813.900931][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4813.900931][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4813.900931][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4813.900931][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4813.900931][   T73]      netlink_rcv_skb+0x130/0x360
[ 4813.900931][   T73]      netlink_unicast+0x449/0x710
[ 4813.900931][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4813.900931][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4813.900931][   T73]      ___sys_sendmsg+0xee/0x170
[ 4813.900931][   T73]      __sys_sendmsg+0xcd/0x170
[ 4813.900931][   T73]      do_syscall_64+0xc6/0x1e0
[ 4813.900931][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4813.900931][   T73] 
[ 4813.903194][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4813.903194][   T73]      netdev_get_by_index+0x5e/0x80
[ 4813.903194][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4813.903194][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4813.903194][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4813.903194][   T73]      ipv6_add_addr+0x411/0x2000
[ 4813.903194][   T73]      inet6_addr_add+0x30e/0xa40
[ 4813.903194][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4813.903194][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4813.903194][   T73]      netlink_rcv_skb+0x130/0x360
[ 4813.903194][   T73]      netlink_unicast+0x449/0x710
[ 4813.903194][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4813.903194][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4813.903194][   T73]      ___sys_sendmsg+0xee/0x170
[ 4813.903194][   T73]      __sys_sendmsg+0xcd/0x170
[ 4813.903194][   T73]      do_syscall_64+0xc6/0x1e0
[ 4813.903194][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4813.903194][   T73] 
[ 4813.905395][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4813.905395][   T73]      netdev_get_by_index+0x5e/0x80
[ 4813.905395][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4813.905395][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4813.905395][   T73]      ip6_route_add+0x1c/0x140
[ 4813.905395][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4813.905395][   T73]      addrconf_add_dev+0xe2/0x170
[ 4813.905395][   T73]      inet6_addr_add+0x12f/0xa40
[ 4813.905395][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4813.905395][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4813.905395][   T73]      netlink_rcv_skb+0x130/0x360
[ 4813.905395][   T73]      netlink_unicast+0x449/0x710
[ 4813.905395][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4813.905395][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4813.905395][   T73]      ___sys_sendmsg+0xee/0x170
[ 4813.905395][   T73]      __sys_sendmsg+0xcd/0x170
[ 4813.905395][   T73]      do_syscall_64+0xc6/0x1e0
[ 4813.905395][   T73] 
[ 4813.907671][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4813.907671][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4813.907671][   T73]      ipv6_find_idev+0x102/0x170
[ 4813.907671][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4813.907671][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4813.907671][   T73]      netlink_rcv_skb+0x130/0x360
[ 4813.907671][   T73]      netlink_unicast+0x449/0x710
[ 4813.907671][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4813.907671][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4813.907671][   T73]      ___sys_sendmsg+0xee/0x170
[ 4813.907671][   T73]      __sys_sendmsg+0xcd/0x170
[ 4813.907671][   T73]      do_syscall_64+0xc6/0x1e0
[ 4813.907671][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4813.907671][   T73] 
[ 4813.909424][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4813.909424][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4813.909424][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4813.909424][   T73]      ipv6_find_idev+0x102/0x170
[ 4813.909424][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4813.909424][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4813.909424][   T73]      netlink_rcv_skb+0x130/0x360
[ 4813.909424][   T73]      netlink_unicast+0x449/0x710
[ 4813.909424][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4813.909424][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4813.909424][   T73]      ___sys_sendmsg+0xee/0x170
[ 4813.909424][   T73]      __sys_sendmsg+0xcd/0x170
[ 4813.909424][   T73]      do_syscall_64+0xc6/0x1e0
[ 4813.909424][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4813.909424][   T73] 
[ 4813.911324][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4813.911677][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4813.911677][   T73]      netdev_get_by_index+0x5e/0x80
[ 4813.911677][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4813.911677][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4813.911677][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4813.911677][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4813.911677][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4813.911677][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4813.911677][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4813.911677][   T73]      addrconf_dad_begin+0x310/0x670
[ 4813.911677][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4813.911677][   T73]      process_one_work+0x84d/0x18a0
[ 4813.911677][   T73]      worker_thread+0x587/0xd30
[ 4813.911677][   T73]      kthread+0x28a/0x350
[ 4813.911677][   T73]      ret_from_fork+0x31/0x70
[ 4813.911677][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4813.911677][   T73] 
[ 4813.913763][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4813.913763][   T73]      netdev_get_by_index+0x5e/0x80
[ 4813.913763][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4813.913763][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4813.913763][   T73]      ip6_route_add+0x1c/0x140
[ 4813.913763][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4813.913763][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4813.913763][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4813.913763][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4813.913763][   T73]      netlink_rcv_skb+0x130/0x360
[ 4813.913763][   T73]      netlink_unicast+0x449/0x710
[ 4813.913763][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4813.913763][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4813.913763][   T73]      ___sys_sendmsg+0xee/0x170
[ 4813.913763][   T73]      __sys_sendmsg+0xcd/0x170
[ 4813.913763][   T73]      do_syscall_64+0xc6/0x1e0
[ 4813.913763][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4813.913763][   T73] 
[ 4813.916058][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4813.916058][   T73]      netdev_get_by_index+0x5e/0x80
[ 4813.916058][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4813.916058][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4813.916058][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4813.916058][   T73]      ipv6_add_addr+0x411/0x2000
[ 4813.916058][   T73]      inet6_addr_add+0x30e/0xa40
[ 4813.916058][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4813.916058][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4813.916058][   T73]      netlink_rcv_skb+0x130/0x360
[ 4813.916058][   T73]      netlink_unicast+0x449/0x710
[ 4813.916058][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4813.916058][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4813.916058][   T73]      ___sys_sendmsg+0xee/0x170
[ 4813.916058][   T73]      __sys_sendmsg+0xcd/0x170
[ 4813.916058][   T73]      do_syscall_64+0xc6/0x1e0
[ 4813.916058][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4813.916058][   T73] 
[ 4813.918405][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4813.918405][   T73]      netdev_get_by_index+0x5e/0x80
[ 4813.918405][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4813.918405][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4813.918405][   T73]      ip6_route_add+0x1c/0x140
[ 4813.918405][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4813.918405][   T73]      addrconf_add_dev+0xe2/0x170
[ 4813.918405][   T73]      inet6_addr_add+0x12f/0xa40
[ 4813.918405][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4813.918405][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4813.918405][   T73]      netlink_rcv_skb+0x130/0x360
[ 4813.918405][   T73]      netlink_unicast+0x449/0x710
[ 4813.918405][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4813.918405][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4813.918405][   T73]      ___sys_sendmsg+0xee/0x170
[ 4813.918405][   T73]      __sys_sendmsg+0xcd/0x170
[ 4813.918405][   T73]      do_syscall_64+0xc6/0x1e0
[ 4813.918405][   T73] 
[ 4813.920653][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4813.920653][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4813.920653][   T73]      ipv6_find_idev+0x102/0x170
[ 4813.920653][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4813.920653][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4813.920653][   T73]      netlink_rcv_skb+0x130/0x360
[ 4813.920653][   T73]      netlink_unicast+0x449/0x710
[ 4813.920653][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4813.920653][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4813.920653][   T73]      ___sys_sendmsg+0xee/0x170
[ 4813.920653][   T73]      __sys_sendmsg+0xcd/0x170
[ 4813.920653][   T73]      do_syscall_64+0xc6/0x1e0
[ 4813.920653][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4813.920653][   T73] 
[ 4813.922410][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4813.922410][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4813.922410][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4813.922410][   T73]      ipv6_find_idev+0x102/0x170
[ 4813.922410][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4813.922410][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4813.922410][   T73]      netlink_rcv_skb+0x130/0x360
[ 4813.922410][   T73]      netlink_unicast+0x449/0x710
[ 4813.922410][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4813.922410][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4813.922410][   T73]      ___sys_sendmsg+0xee/0x170
[ 4813.922410][   T73]      __sys_sendmsg+0xcd/0x170
[ 4813.922410][   T73]      do_syscall_64+0xc6/0x1e0
[ 4813.922410][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4813.922410][   T73] 
[ 4824.103718][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4824.104165][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4824.104165][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4824.104165][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4824.104165][   T73]      fib6_nh_init+0xa22/0x1580
[ 4824.104165][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4824.104165][   T73]      ip6_route_add+0x1c/0x140
[ 4824.104165][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4824.104165][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4824.104165][   T73]      netlink_rcv_skb+0x130/0x360
[ 4824.104165][   T73]      netlink_unicast+0x449/0x710
[ 4824.104165][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4824.104165][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4824.104165][   T73]      ___sys_sendmsg+0xee/0x170
[ 4824.104165][   T73]      __sys_sendmsg+0xcd/0x170
[ 4824.104165][   T73]      do_syscall_64+0xc6/0x1e0
[ 4824.104165][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4824.104165][   T73] 
[ 4824.106109][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4824.106109][   T73]      dst_init+0x84/0x4a0
[ 4824.106109][   T73]      dst_alloc+0x97/0x150
[ 4824.106109][   T73]      ip6_dst_alloc+0x23/0x90
[ 4824.106109][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4824.106109][   T73]      ip6_pol_route+0x56f/0x840
[ 4824.106109][   T73]      fib6_rule_lookup+0x456/0x630
[ 4824.106109][   T73]      ip6_route_input+0x59c/0xa50
[ 4824.106109][   T73]      ipv6_rcv+0x397/0x810
[ 4824.106109][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4824.106109][   T73]      process_backlog+0x101/0x620
[ 4824.106109][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4824.106109][   T73]      net_rx_action+0x495/0xbe0
[ 4824.106109][   T73]      __do_softirq+0x1b5/0x7f6
[ 4824.106109][   T73] 
[ 4824.107763][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4824.107763][   T73]      netdev_get_by_index+0x5e/0x80
[ 4824.107763][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4824.107763][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4824.107763][   T73]      ip6_route_add+0x1c/0x140
[ 4824.107763][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4824.107763][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4824.107763][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4824.107763][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4824.107763][   T73]      netlink_rcv_skb+0x130/0x360
[ 4824.107763][   T73]      netlink_unicast+0x449/0x710
[ 4824.107763][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4824.107763][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4824.107763][   T73]      ___sys_sendmsg+0xee/0x170
[ 4824.107763][   T73]      __sys_sendmsg+0xcd/0x170
[ 4824.107763][   T73]      do_syscall_64+0xc6/0x1e0
[ 4824.107763][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4824.107763][   T73] 
[ 4824.109772][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4824.109772][   T73]      netdev_get_by_index+0x5e/0x80
[ 4824.109772][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4824.109772][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4824.109772][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4824.109772][   T73]      ipv6_add_addr+0x411/0x2000
[ 4824.109772][   T73]      inet6_addr_add+0x30e/0xa40
[ 4824.109772][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4824.109772][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4824.109772][   T73]      netlink_rcv_skb+0x130/0x360
[ 4824.109772][   T73]      netlink_unicast+0x449/0x710
[ 4824.109772][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4824.109772][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4824.109772][   T73]      ___sys_sendmsg+0xee/0x170
[ 4824.109772][   T73]      __sys_sendmsg+0xcd/0x170
[ 4824.109772][   T73]      do_syscall_64+0xc6/0x1e0
[ 4824.109772][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4824.109772][   T73] 
[ 4824.111776][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4824.111776][   T73]      netdev_get_by_index+0x5e/0x80
[ 4824.111776][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4824.111776][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4824.111776][   T73]      ip6_route_add+0x1c/0x140
[ 4824.111776][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4824.111776][   T73]      addrconf_add_dev+0xe2/0x170
[ 4824.111776][   T73]      inet6_addr_add+0x12f/0xa40
[ 4824.111776][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4824.111776][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4824.111776][   T73]      netlink_rcv_skb+0x130/0x360
[ 4824.111776][   T73]      netlink_unicast+0x449/0x710
[ 4824.111776][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4824.111776][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4824.111776][   T73]      ___sys_sendmsg+0xee/0x170
[ 4824.111776][   T73]      __sys_sendmsg+0xcd/0x170
[ 4824.111776][   T73]      do_syscall_64+0xc6/0x1e0
[ 4824.111776][   T73] 
[ 4824.113749][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4824.113749][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4824.113749][   T73]      ipv6_find_idev+0x102/0x170
[ 4824.113749][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4824.113749][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4824.113749][   T73]      netlink_rcv_skb+0x130/0x360
[ 4824.113749][   T73]      netlink_unicast+0x449/0x710
[ 4824.113749][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4824.113749][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4824.113749][   T73]      ___sys_sendmsg+0xee/0x170
[ 4824.113749][   T73]      __sys_sendmsg+0xcd/0x170
[ 4824.113749][   T73]      do_syscall_64+0xc6/0x1e0
[ 4824.113749][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4824.113749][   T73] 
[ 4824.115299][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4824.115299][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4824.115299][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4824.115299][   T73]      ipv6_find_idev+0x102/0x170
[ 4824.115299][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4824.115299][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4824.115299][   T73]      netlink_rcv_skb+0x130/0x360
[ 4824.115299][   T73]      netlink_unicast+0x449/0x710
[ 4824.115299][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4824.115299][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4824.115299][   T73]      ___sys_sendmsg+0xee/0x170
[ 4824.115299][   T73]      __sys_sendmsg+0xcd/0x170
[ 4824.115299][   T73]      do_syscall_64+0xc6/0x1e0
[ 4824.115299][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4824.115299][   T73] 
[ 4824.116994][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4824.117269][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4824.117269][   T73]      netdev_get_by_index+0x5e/0x80
[ 4824.117269][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4824.117269][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4824.117269][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4824.117269][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4824.117269][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4824.117269][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4824.117269][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4824.117269][   T73]      addrconf_dad_begin+0x310/0x670
[ 4824.117269][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4824.117269][   T73]      process_one_work+0x84d/0x18a0
[ 4824.117269][   T73]      worker_thread+0x587/0xd30
[ 4824.117269][   T73]      kthread+0x28a/0x350
[ 4824.117269][   T73]      ret_from_fork+0x31/0x70
[ 4824.117269][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4824.117269][   T73] 
[ 4824.119181][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4824.119181][   T73]      netdev_get_by_index+0x5e/0x80
[ 4824.119181][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4824.119181][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4824.119181][   T73]      ip6_route_add+0x1c/0x140
[ 4824.119181][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4824.119181][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4824.119181][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4824.119181][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4824.119181][   T73]      netlink_rcv_skb+0x130/0x360
[ 4824.119181][   T73]      netlink_unicast+0x449/0x710
[ 4824.119181][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4824.119181][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4824.119181][   T73]      ___sys_sendmsg+0xee/0x170
[ 4824.119181][   T73]      __sys_sendmsg+0xcd/0x170
[ 4824.119181][   T73]      do_syscall_64+0xc6/0x1e0
[ 4824.119181][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4824.119181][   T73] 
[ 4824.121177][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4824.121177][   T73]      netdev_get_by_index+0x5e/0x80
[ 4824.121177][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4824.121177][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4824.121177][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4824.121177][   T73]      ipv6_add_addr+0x411/0x2000
[ 4824.121177][   T73]      inet6_addr_add+0x30e/0xa40
[ 4824.121177][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4824.121177][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4824.121177][   T73]      netlink_rcv_skb+0x130/0x360
[ 4824.121177][   T73]      netlink_unicast+0x449/0x710
[ 4824.121177][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4824.121177][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4824.121177][   T73]      ___sys_sendmsg+0xee/0x170
[ 4824.121177][   T73]      __sys_sendmsg+0xcd/0x170
[ 4824.121177][   T73]      do_syscall_64+0xc6/0x1e0
[ 4824.121177][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4824.121177][   T73] 
[ 4824.123191][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4824.123191][   T73]      netdev_get_by_index+0x5e/0x80
[ 4824.123191][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4824.123191][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4824.123191][   T73]      ip6_route_add+0x1c/0x140
[ 4824.123191][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4824.123191][   T73]      addrconf_add_dev+0xe2/0x170
[ 4824.123191][   T73]      inet6_addr_add+0x12f/0xa40
[ 4824.123191][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4824.123191][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4824.123191][   T73]      netlink_rcv_skb+0x130/0x360
[ 4824.123191][   T73]      netlink_unicast+0x449/0x710
[ 4824.123191][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4824.123191][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4824.123191][   T73]      ___sys_sendmsg+0xee/0x170
[ 4824.123191][   T73]      __sys_sendmsg+0xcd/0x170
[ 4824.123191][   T73]      do_syscall_64+0xc6/0x1e0
[ 4824.123191][   T73] 
[ 4824.125145][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4824.125145][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4824.125145][   T73]      ipv6_find_idev+0x102/0x170
[ 4824.125145][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4824.125145][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4824.125145][   T73]      netlink_rcv_skb+0x130/0x360
[ 4824.125145][   T73]      netlink_unicast+0x449/0x710
[ 4824.125145][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4824.125145][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4824.125145][   T73]      ___sys_sendmsg+0xee/0x170
[ 4824.125145][   T73]      __sys_sendmsg+0xcd/0x170
[ 4824.125145][   T73]      do_syscall_64+0xc6/0x1e0
[ 4824.125145][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4824.125145][   T73] 
[ 4824.126679][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4824.126679][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4824.126679][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4824.126679][   T73]      ipv6_find_idev+0x102/0x170
[ 4824.126679][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4824.126679][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4824.126679][   T73]      netlink_rcv_skb+0x130/0x360
[ 4824.126679][   T73]      netlink_unicast+0x449/0x710
[ 4824.126679][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4824.126679][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4824.126679][   T73]      ___sys_sendmsg+0xee/0x170
[ 4824.126679][   T73]      __sys_sendmsg+0xcd/0x170
[ 4824.126679][   T73]      do_syscall_64+0xc6/0x1e0
[ 4824.126679][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4824.126679][   T73] 
[ 4824.128364][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4824.128635][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4824.128635][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4824.128635][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4824.128635][   T73]      fib6_nh_init+0xa22/0x1580
[ 4824.128635][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4824.128635][   T73]      ip6_route_add+0x1c/0x140
[ 4824.128635][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4824.128635][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4824.128635][   T73]      netlink_rcv_skb+0x130/0x360
[ 4824.128635][   T73]      netlink_unicast+0x449/0x710
[ 4824.128635][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4824.128635][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4824.128635][   T73]      ___sys_sendmsg+0xee/0x170
[ 4824.128635][   T73]      __sys_sendmsg+0xcd/0x170
[ 4824.128635][   T73]      do_syscall_64+0xc6/0x1e0
[ 4824.128635][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4824.128635][   T73] 
[ 4824.130703][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4824.130703][   T73]      dst_init+0x84/0x4a0
[ 4824.130703][   T73]      dst_alloc+0x97/0x150
[ 4824.130703][   T73]      ip6_dst_alloc+0x23/0x90
[ 4824.130703][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4824.130703][   T73]      ip6_pol_route+0x56f/0x840
[ 4824.130703][   T73]      fib6_rule_lookup+0x456/0x630
[ 4824.130703][   T73]      ip6_route_input+0x59c/0xa50
[ 4824.130703][   T73]      ipv6_rcv+0x397/0x810
[ 4824.130703][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4824.130703][   T73]      process_backlog+0x101/0x620
[ 4824.130703][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4824.130703][   T73]      net_rx_action+0x495/0xbe0
[ 4824.130703][   T73]      __do_softirq+0x1b5/0x7f6
[ 4824.130703][   T73] 
[ 4824.132526][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4824.132526][   T73]      netdev_get_by_index+0x5e/0x80
[ 4824.132526][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4824.132526][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4824.132526][   T73]      ip6_route_add+0x1c/0x140
[ 4824.132526][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4824.132526][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4824.132526][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4824.132526][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4824.132526][   T73]      netlink_rcv_skb+0x130/0x360
[ 4824.132526][   T73]      netlink_unicast+0x449/0x710
[ 4824.132526][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4824.132526][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4824.132526][   T73]      ___sys_sendmsg+0xee/0x170
[ 4824.132526][   T73]      __sys_sendmsg+0xcd/0x170
[ 4824.132526][   T73]      do_syscall_64+0xc6/0x1e0
[ 4824.132526][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4824.132526][   T73] 
[ 4824.134823][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4824.134823][   T73]      netdev_get_by_index+0x5e/0x80
[ 4824.134823][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4824.134823][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4824.134823][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4824.134823][   T73]      ipv6_add_addr+0x411/0x2000
[ 4824.134823][   T73]      inet6_addr_add+0x30e/0xa40
[ 4824.134823][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4824.134823][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4824.134823][   T73]      netlink_rcv_skb+0x130/0x360
[ 4824.134823][   T73]      netlink_unicast+0x449/0x710
[ 4824.134823][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4824.134823][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4824.134823][   T73]      ___sys_sendmsg+0xee/0x170
[ 4824.134823][   T73]      __sys_sendmsg+0xcd/0x170
[ 4824.134823][   T73]      do_syscall_64+0xc6/0x1e0
[ 4824.134823][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4824.134823][   T73] 
[ 4824.137525][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4824.137525][   T73]      netdev_get_by_index+0x5e/0x80
[ 4824.137525][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4824.137525][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4824.137525][   T73]      ip6_route_add+0x1c/0x140
[ 4824.137525][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4824.137525][   T73]      addrconf_add_dev+0xe2/0x170
[ 4824.137525][   T73]      inet6_addr_add+0x12f/0xa40
[ 4824.137525][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4824.137525][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4824.137525][   T73]      netlink_rcv_skb+0x130/0x360
[ 4824.137525][   T73]      netlink_unicast+0x449/0x710
[ 4824.137525][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4824.137525][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4824.137525][   T73]      ___sys_sendmsg+0xee/0x170
[ 4824.137525][   T73]      __sys_sendmsg+0xcd/0x170
[ 4824.137525][   T73]      do_syscall_64+0xc6/0x1e0
[ 4824.137525][   T73] 
[ 4824.139721][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4824.139721][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4824.139721][   T73]      ipv6_find_idev+0x102/0x170
[ 4824.139721][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4824.139721][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4824.139721][   T73]      netlink_rcv_skb+0x130/0x360
[ 4824.139721][   T73]      netlink_unicast+0x449/0x710
[ 4824.139721][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4824.139721][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4824.139721][   T73]      ___sys_sendmsg+0xee/0x170
[ 4824.139721][   T73]      __sys_sendmsg+0xcd/0x170
[ 4824.139721][   T73]      do_syscall_64+0xc6/0x1e0
[ 4824.139721][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4824.139721][   T73] 
[ 4824.141449][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4824.141449][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4824.141449][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4824.141449][   T73]      ipv6_find_idev+0x102/0x170
[ 4824.141449][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4824.141449][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4824.141449][   T73]      netlink_rcv_skb+0x130/0x360
[ 4824.141449][   T73]      netlink_unicast+0x449/0x710
[ 4824.141449][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4824.141449][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4824.141449][   T73]      ___sys_sendmsg+0xee/0x170
[ 4824.141449][   T73]      __sys_sendmsg+0xcd/0x170
[ 4824.141449][   T73]      do_syscall_64+0xc6/0x1e0
[ 4824.141449][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4824.141449][   T73] 
[ 4824.143332][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4824.143692][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4824.143692][   T73]      netdev_get_by_index+0x5e/0x80
[ 4824.143692][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4824.143692][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4824.143692][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4824.143692][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4824.143692][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4824.143692][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4824.143692][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4824.143692][   T73]      addrconf_dad_begin+0x310/0x670
[ 4824.143692][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4824.143692][   T73]      process_one_work+0x84d/0x18a0
[ 4824.143692][   T73]      worker_thread+0x587/0xd30
[ 4824.143692][   T73]      kthread+0x28a/0x350
[ 4824.143692][   T73]      ret_from_fork+0x31/0x70
[ 4824.143692][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4824.143692][   T73] 
[ 4824.145800][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4824.145800][   T73]      netdev_get_by_index+0x5e/0x80
[ 4824.145800][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4824.145800][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4824.145800][   T73]      ip6_route_add+0x1c/0x140
[ 4824.145800][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4824.145800][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4824.145800][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4824.145800][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4824.145800][   T73]      netlink_rcv_skb+0x130/0x360
[ 4824.145800][   T73]      netlink_unicast+0x449/0x710
[ 4824.145800][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4824.145800][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4824.145800][   T73]      ___sys_sendmsg+0xee/0x170
[ 4824.145800][   T73]      __sys_sendmsg+0xcd/0x170
[ 4824.145800][   T73]      do_syscall_64+0xc6/0x1e0
[ 4824.145800][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4824.145800][   T73] 
[ 4824.151041][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4824.151041][   T73]      netdev_get_by_index+0x5e/0x80
[ 4824.151041][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4824.151041][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4824.151041][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4824.151041][   T73]      ipv6_add_addr+0x411/0x2000
[ 4824.151041][   T73]      inet6_addr_add+0x30e/0xa40
[ 4824.151041][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4824.151041][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4824.151041][   T73]      netlink_rcv_skb+0x130/0x360
[ 4824.151041][   T73]      netlink_unicast+0x449/0x710
[ 4824.151041][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4824.151041][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4824.151041][   T73]      ___sys_sendmsg+0xee/0x170
[ 4824.151041][   T73]      __sys_sendmsg+0xcd/0x170
[ 4824.151041][   T73]      do_syscall_64+0xc6/0x1e0
[ 4824.151041][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4824.151041][   T73] 
[ 4824.153319][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4824.153319][   T73]      netdev_get_by_index+0x5e/0x80
[ 4824.153319][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4824.153319][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4824.153319][   T73]      ip6_route_add+0x1c/0x140
[ 4824.153319][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4824.153319][   T73]      addrconf_add_dev+0xe2/0x170
[ 4824.153319][   T73]      inet6_addr_add+0x12f/0xa40
[ 4824.153319][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4824.153319][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4824.153319][   T73]      netlink_rcv_skb+0x130/0x360
[ 4824.153319][   T73]      netlink_unicast+0x449/0x710
[ 4824.153319][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4824.153319][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4824.153319][   T73]      ___sys_sendmsg+0xee/0x170
[ 4824.153319][   T73]      __sys_sendmsg+0xcd/0x170
[ 4824.153319][   T73]      do_syscall_64+0xc6/0x1e0
[ 4824.153319][   T73] 
[ 4824.155557][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4824.155557][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4824.155557][   T73]      ipv6_find_idev+0x102/0x170
[ 4824.155557][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4824.155557][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4824.155557][   T73]      netlink_rcv_skb+0x130/0x360
[ 4824.155557][   T73]      netlink_unicast+0x449/0x710
[ 4824.155557][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4824.155557][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4824.155557][   T73]      ___sys_sendmsg+0xee/0x170
[ 4824.155557][   T73]      __sys_sendmsg+0xcd/0x170
[ 4824.155557][   T73]      do_syscall_64+0xc6/0x1e0
[ 4824.155557][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4824.155557][   T73] 
[ 4824.157364][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4824.157364][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4824.157364][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4824.157364][   T73]      ipv6_find_idev+0x102/0x170
[ 4824.157364][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4824.157364][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4824.157364][   T73]      netlink_rcv_skb+0x130/0x360
[ 4824.157364][   T73]      netlink_unicast+0x449/0x710
[ 4824.157364][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4824.157364][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4824.157364][   T73]      ___sys_sendmsg+0xee/0x170
[ 4824.157364][   T73]      __sys_sendmsg+0xcd/0x170
[ 4824.157364][   T73]      do_syscall_64+0xc6/0x1e0
[ 4824.157364][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4824.157364][   T73] 
[ 4834.175774][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4834.178181][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4834.178181][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4834.178181][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4834.178181][   T73]      fib6_nh_init+0xa22/0x1580
[ 4834.178181][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4834.178181][   T73]      ip6_route_add+0x1c/0x140
[ 4834.178181][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4834.178181][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4834.178181][   T73]      netlink_rcv_skb+0x130/0x360
[ 4834.178181][   T73]      netlink_unicast+0x449/0x710
[ 4834.178181][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4834.178181][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4834.178181][   T73]      ___sys_sendmsg+0xee/0x170
[ 4834.178181][   T73]      __sys_sendmsg+0xcd/0x170
[ 4834.178181][   T73]      do_syscall_64+0xc6/0x1e0
[ 4834.178181][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4834.178181][   T73] 
[ 4834.180375][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4834.180375][   T73]      dst_init+0x84/0x4a0
[ 4834.180375][   T73]      dst_alloc+0x97/0x150
[ 4834.180375][   T73]      ip6_dst_alloc+0x23/0x90
[ 4834.180375][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4834.180375][   T73]      ip6_pol_route+0x56f/0x840
[ 4834.180375][   T73]      fib6_rule_lookup+0x456/0x630
[ 4834.180375][   T73]      ip6_route_input+0x59c/0xa50
[ 4834.180375][   T73]      ipv6_rcv+0x397/0x810
[ 4834.180375][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4834.180375][   T73]      process_backlog+0x101/0x620
[ 4834.180375][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4834.180375][   T73]      net_rx_action+0x495/0xbe0
[ 4834.180375][   T73]      __do_softirq+0x1b5/0x7f6
[ 4834.180375][   T73] 
[ 4834.182242][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4834.182242][   T73]      netdev_get_by_index+0x5e/0x80
[ 4834.182242][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4834.182242][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4834.182242][   T73]      ip6_route_add+0x1c/0x140
[ 4834.182242][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4834.182242][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4834.182242][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4834.182242][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4834.182242][   T73]      netlink_rcv_skb+0x130/0x360
[ 4834.182242][   T73]      netlink_unicast+0x449/0x710
[ 4834.182242][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4834.182242][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4834.182242][   T73]      ___sys_sendmsg+0xee/0x170
[ 4834.182242][   T73]      __sys_sendmsg+0xcd/0x170
[ 4834.182242][   T73]      do_syscall_64+0xc6/0x1e0
[ 4834.182242][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4834.182242][   T73] 
[ 4834.184491][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4834.184491][   T73]      netdev_get_by_index+0x5e/0x80
[ 4834.184491][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4834.184491][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4834.184491][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4834.184491][   T73]      ipv6_add_addr+0x411/0x2000
[ 4834.184491][   T73]      inet6_addr_add+0x30e/0xa40
[ 4834.184491][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4834.184491][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4834.184491][   T73]      netlink_rcv_skb+0x130/0x360
[ 4834.184491][   T73]      netlink_unicast+0x449/0x710
[ 4834.184491][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4834.184491][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4834.184491][   T73]      ___sys_sendmsg+0xee/0x170
[ 4834.184491][   T73]      __sys_sendmsg+0xcd/0x170
[ 4834.184491][   T73]      do_syscall_64+0xc6/0x1e0
[ 4834.184491][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4834.184491][   T73] 
[ 4834.186721][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4834.186721][   T73]      netdev_get_by_index+0x5e/0x80
[ 4834.186721][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4834.186721][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4834.186721][   T73]      ip6_route_add+0x1c/0x140
[ 4834.186721][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4834.186721][   T73]      addrconf_add_dev+0xe2/0x170
[ 4834.186721][   T73]      inet6_addr_add+0x12f/0xa40
[ 4834.186721][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4834.186721][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4834.186721][   T73]      netlink_rcv_skb+0x130/0x360
[ 4834.186721][   T73]      netlink_unicast+0x449/0x710
[ 4834.186721][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4834.186721][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4834.186721][   T73]      ___sys_sendmsg+0xee/0x170
[ 4834.186721][   T73]      __sys_sendmsg+0xcd/0x170
[ 4834.186721][   T73]      do_syscall_64+0xc6/0x1e0
[ 4834.186721][   T73] 
[ 4834.188923][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4834.188923][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4834.188923][   T73]      ipv6_find_idev+0x102/0x170
[ 4834.188923][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4834.188923][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4834.188923][   T73]      netlink_rcv_skb+0x130/0x360
[ 4834.188923][   T73]      netlink_unicast+0x449/0x710
[ 4834.188923][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4834.188923][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4834.188923][   T73]      ___sys_sendmsg+0xee/0x170
[ 4834.188923][   T73]      __sys_sendmsg+0xcd/0x170
[ 4834.188923][   T73]      do_syscall_64+0xc6/0x1e0
[ 4834.188923][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4834.188923][   T73] 
[ 4834.190644][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4834.190644][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4834.190644][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4834.190644][   T73]      ipv6_find_idev+0x102/0x170
[ 4834.190644][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4834.190644][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4834.190644][   T73]      netlink_rcv_skb+0x130/0x360
[ 4834.190644][   T73]      netlink_unicast+0x449/0x710
[ 4834.190644][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4834.190644][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4834.190644][   T73]      ___sys_sendmsg+0xee/0x170
[ 4834.190644][   T73]      __sys_sendmsg+0xcd/0x170
[ 4834.190644][   T73]      do_syscall_64+0xc6/0x1e0
[ 4834.190644][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4834.190644][   T73] 
[ 4834.192668][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4834.192976][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4834.192976][   T73]      netdev_get_by_index+0x5e/0x80
[ 4834.192976][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4834.192976][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4834.192976][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4834.192976][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4834.192976][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4834.192976][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4834.192976][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4834.192976][   T73]      addrconf_dad_begin+0x310/0x670
[ 4834.192976][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4834.192976][   T73]      process_one_work+0x84d/0x18a0
[ 4834.192976][   T73]      worker_thread+0x587/0xd30
[ 4834.192976][   T73]      kthread+0x28a/0x350
[ 4834.192976][   T73]      ret_from_fork+0x31/0x70
[ 4834.192976][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4834.192976][   T73] 
[ 4834.195132][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4834.195132][   T73]      netdev_get_by_index+0x5e/0x80
[ 4834.195132][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4834.195132][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4834.195132][   T73]      ip6_route_add+0x1c/0x140
[ 4834.195132][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4834.195132][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4834.195132][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4834.195132][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4834.195132][   T73]      netlink_rcv_skb+0x130/0x360
[ 4834.195132][   T73]      netlink_unicast+0x449/0x710
[ 4834.195132][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4834.195132][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4834.195132][   T73]      ___sys_sendmsg+0xee/0x170
[ 4834.195132][   T73]      __sys_sendmsg+0xcd/0x170
[ 4834.195132][   T73]      do_syscall_64+0xc6/0x1e0
[ 4834.195132][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4834.195132][   T73] 
[ 4834.197374][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4834.197374][   T73]      netdev_get_by_index+0x5e/0x80
[ 4834.197374][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4834.197374][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4834.197374][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4834.197374][   T73]      ipv6_add_addr+0x411/0x2000
[ 4834.197374][   T73]      inet6_addr_add+0x30e/0xa40
[ 4834.197374][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4834.197374][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4834.197374][   T73]      netlink_rcv_skb+0x130/0x360
[ 4834.197374][   T73]      netlink_unicast+0x449/0x710
[ 4834.197374][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4834.197374][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4834.197374][   T73]      ___sys_sendmsg+0xee/0x170
[ 4834.197374][   T73]      __sys_sendmsg+0xcd/0x170
[ 4834.197374][   T73]      do_syscall_64+0xc6/0x1e0
[ 4834.197374][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4834.197374][   T73] 
[ 4834.199626][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4834.199626][   T73]      netdev_get_by_index+0x5e/0x80
[ 4834.199626][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4834.199626][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4834.199626][   T73]      ip6_route_add+0x1c/0x140
[ 4834.199626][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4834.199626][   T73]      addrconf_add_dev+0xe2/0x170
[ 4834.199626][   T73]      inet6_addr_add+0x12f/0xa40
[ 4834.199626][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4834.199626][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4834.199626][   T73]      netlink_rcv_skb+0x130/0x360
[ 4834.199626][   T73]      netlink_unicast+0x449/0x710
[ 4834.199626][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4834.199626][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4834.199626][   T73]      ___sys_sendmsg+0xee/0x170
[ 4834.199626][   T73]      __sys_sendmsg+0xcd/0x170
[ 4834.199626][   T73]      do_syscall_64+0xc6/0x1e0
[ 4834.199626][   T73] 
[ 4834.201825][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4834.201825][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4834.201825][   T73]      ipv6_find_idev+0x102/0x170
[ 4834.201825][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4834.201825][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4834.201825][   T73]      netlink_rcv_skb+0x130/0x360
[ 4834.201825][   T73]      netlink_unicast+0x449/0x710
[ 4834.201825][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4834.201825][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4834.201825][   T73]      ___sys_sendmsg+0xee/0x170
[ 4834.201825][   T73]      __sys_sendmsg+0xcd/0x170
[ 4834.201825][   T73]      do_syscall_64+0xc6/0x1e0
[ 4834.201825][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4834.201825][   T73] 
[ 4834.203550][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4834.203550][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4834.203550][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4834.203550][   T73]      ipv6_find_idev+0x102/0x170
[ 4834.203550][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4834.203550][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4834.203550][   T73]      netlink_rcv_skb+0x130/0x360
[ 4834.203550][   T73]      netlink_unicast+0x449/0x710
[ 4834.203550][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4834.203550][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4834.203550][   T73]      ___sys_sendmsg+0xee/0x170
[ 4834.203550][   T73]      __sys_sendmsg+0xcd/0x170
[ 4834.203550][   T73]      do_syscall_64+0xc6/0x1e0
[ 4834.203550][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4834.203550][   T73] 
[ 4834.205466][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4834.205773][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4834.205773][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4834.205773][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4834.205773][   T73]      fib6_nh_init+0xa22/0x1580
[ 4834.205773][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4834.205773][   T73]      ip6_route_add+0x1c/0x140
[ 4834.205773][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4834.205773][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4834.205773][   T73]      netlink_rcv_skb+0x130/0x360
[ 4834.205773][   T73]      netlink_unicast+0x449/0x710
[ 4834.205773][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4834.205773][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4834.205773][   T73]      ___sys_sendmsg+0xee/0x170
[ 4834.205773][   T73]      __sys_sendmsg+0xcd/0x170
[ 4834.205773][   T73]      do_syscall_64+0xc6/0x1e0
[ 4834.205773][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4834.205773][   T73] 
[ 4834.208077][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4834.208077][   T73]      dst_init+0x84/0x4a0
[ 4834.208077][   T73]      dst_alloc+0x97/0x150
[ 4834.208077][   T73]      ip6_dst_alloc+0x23/0x90
[ 4834.208077][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4834.208077][   T73]      ip6_pol_route+0x56f/0x840
[ 4834.208077][   T73]      fib6_rule_lookup+0x456/0x630
[ 4834.208077][   T73]      ip6_route_input+0x59c/0xa50
[ 4834.208077][   T73]      ipv6_rcv+0x397/0x810
[ 4834.208077][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4834.208077][   T73]      process_backlog+0x101/0x620
[ 4834.208077][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4834.208077][   T73]      net_rx_action+0x495/0xbe0
[ 4834.208077][   T73]      __do_softirq+0x1b5/0x7f6
[ 4834.208077][   T73] 
[ 4834.210118][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4834.210118][   T73]      netdev_get_by_index+0x5e/0x80
[ 4834.210118][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4834.210118][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4834.210118][   T73]      ip6_route_add+0x1c/0x140
[ 4834.210118][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4834.210118][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4834.210118][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4834.210118][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4834.210118][   T73]      netlink_rcv_skb+0x130/0x360
[ 4834.210118][   T73]      netlink_unicast+0x449/0x710
[ 4834.210118][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4834.210118][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4834.210118][   T73]      ___sys_sendmsg+0xee/0x170
[ 4834.210118][   T73]      __sys_sendmsg+0xcd/0x170
[ 4834.210118][   T73]      do_syscall_64+0xc6/0x1e0
[ 4834.210118][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4834.210118][   T73] 
[ 4834.212676][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4834.212676][   T73]      netdev_get_by_index+0x5e/0x80
[ 4834.212676][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4834.212676][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4834.212676][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4834.212676][   T73]      ipv6_add_addr+0x411/0x2000
[ 4834.212676][   T73]      inet6_addr_add+0x30e/0xa40
[ 4834.212676][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4834.212676][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4834.212676][   T73]      netlink_rcv_skb+0x130/0x360
[ 4834.212676][   T73]      netlink_unicast+0x449/0x710
[ 4834.212676][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4834.212676][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4834.212676][   T73]      ___sys_sendmsg+0xee/0x170
[ 4834.212676][   T73]      __sys_sendmsg+0xcd/0x170
[ 4834.212676][   T73]      do_syscall_64+0xc6/0x1e0
[ 4834.212676][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4834.212676][   T73] 
[ 4834.215230][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4834.215230][   T73]      netdev_get_by_index+0x5e/0x80
[ 4834.215230][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4834.215230][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4834.215230][   T73]      ip6_route_add+0x1c/0x140
[ 4834.215230][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4834.215230][   T73]      addrconf_add_dev+0xe2/0x170
[ 4834.215230][   T73]      inet6_addr_add+0x12f/0xa40
[ 4834.215230][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4834.215230][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4834.215230][   T73]      netlink_rcv_skb+0x130/0x360
[ 4834.215230][   T73]      netlink_unicast+0x449/0x710
[ 4834.215230][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4834.215230][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4834.215230][   T73]      ___sys_sendmsg+0xee/0x170
[ 4834.215230][   T73]      __sys_sendmsg+0xcd/0x170
[ 4834.215230][   T73]      do_syscall_64+0xc6/0x1e0
[ 4834.215230][   T73] 
[ 4834.217610][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4834.217610][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4834.217610][   T73]      ipv6_find_idev+0x102/0x170
[ 4834.217610][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4834.217610][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4834.217610][   T73]      netlink_rcv_skb+0x130/0x360
[ 4834.217610][   T73]      netlink_unicast+0x449/0x710
[ 4834.217610][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4834.217610][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4834.217610][   T73]      ___sys_sendmsg+0xee/0x170
[ 4834.217610][   T73]      __sys_sendmsg+0xcd/0x170
[ 4834.217610][   T73]      do_syscall_64+0xc6/0x1e0
[ 4834.217610][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4834.217610][   T73] 
[ 4834.219609][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4834.219609][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4834.219609][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4834.219609][   T73]      ipv6_find_idev+0x102/0x170
[ 4834.219609][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4834.219609][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4834.219609][   T73]      netlink_rcv_skb+0x130/0x360
[ 4834.219609][   T73]      netlink_unicast+0x449/0x710
[ 4834.219609][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4834.219609][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4834.219609][   T73]      ___sys_sendmsg+0xee/0x170
[ 4834.219609][   T73]      __sys_sendmsg+0xcd/0x170
[ 4834.219609][   T73]      do_syscall_64+0xc6/0x1e0
[ 4834.219609][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4834.219609][   T73] 
[ 4834.221783][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4834.222099][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4834.222099][   T73]      netdev_get_by_index+0x5e/0x80
[ 4834.222099][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4834.222099][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4834.222099][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4834.222099][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4834.222099][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4834.222099][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4834.222099][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4834.222099][   T73]      addrconf_dad_begin+0x310/0x670
[ 4834.222099][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4834.222099][   T73]      process_one_work+0x84d/0x18a0
[ 4834.222099][   T73]      worker_thread+0x587/0xd30
[ 4834.222099][   T73]      kthread+0x28a/0x350
[ 4834.222099][   T73]      ret_from_fork+0x31/0x70
[ 4834.222099][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4834.222099][   T73] 
[ 4834.225062][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4834.225062][   T73]      netdev_get_by_index+0x5e/0x80
[ 4834.225062][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4834.225062][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4834.225062][   T73]      ip6_route_add+0x1c/0x140
[ 4834.225062][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4834.225062][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4834.225062][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4834.225062][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4834.225062][   T73]      netlink_rcv_skb+0x130/0x360
[ 4834.225062][   T73]      netlink_unicast+0x449/0x710
[ 4834.225062][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4834.225062][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4834.225062][   T73]      ___sys_sendmsg+0xee/0x170
[ 4834.225062][   T73]      __sys_sendmsg+0xcd/0x170
[ 4834.225062][   T73]      do_syscall_64+0xc6/0x1e0
[ 4834.225062][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4834.225062][   T73] 
[ 4834.227567][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4834.227567][   T73]      netdev_get_by_index+0x5e/0x80
[ 4834.227567][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4834.227567][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4834.227567][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4834.227567][   T73]      ipv6_add_addr+0x411/0x2000
[ 4834.227567][   T73]      inet6_addr_add+0x30e/0xa40
[ 4834.227567][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4834.227567][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4834.227567][   T73]      netlink_rcv_skb+0x130/0x360
[ 4834.227567][   T73]      netlink_unicast+0x449/0x710
[ 4834.227567][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4834.227567][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4834.227567][   T73]      ___sys_sendmsg+0xee/0x170
[ 4834.227567][   T73]      __sys_sendmsg+0xcd/0x170
[ 4834.227567][   T73]      do_syscall_64+0xc6/0x1e0
[ 4834.227567][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4834.227567][   T73] 
[ 4834.230096][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4834.230096][   T73]      netdev_get_by_index+0x5e/0x80
[ 4834.230096][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4834.230096][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4834.230096][   T73]      ip6_route_add+0x1c/0x140
[ 4834.230096][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4834.230096][   T73]      addrconf_add_dev+0xe2/0x170
[ 4834.230096][   T73]      inet6_addr_add+0x12f/0xa40
[ 4834.230096][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4834.230096][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4834.230096][   T73]      netlink_rcv_skb+0x130/0x360
[ 4834.230096][   T73]      netlink_unicast+0x449/0x710
[ 4834.230096][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4834.230096][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4834.230096][   T73]      ___sys_sendmsg+0xee/0x170
[ 4834.230096][   T73]      __sys_sendmsg+0xcd/0x170
[ 4834.230096][   T73]      do_syscall_64+0xc6/0x1e0
[ 4834.230096][   T73] 
[ 4834.232570][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4834.232570][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4834.232570][   T73]      ipv6_find_idev+0x102/0x170
[ 4834.232570][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4834.232570][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4834.232570][   T73]      netlink_rcv_skb+0x130/0x360
[ 4834.232570][   T73]      netlink_unicast+0x449/0x710
[ 4834.232570][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4834.232570][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4834.232570][   T73]      ___sys_sendmsg+0xee/0x170
[ 4834.232570][   T73]      __sys_sendmsg+0xcd/0x170
[ 4834.232570][   T73]      do_syscall_64+0xc6/0x1e0
[ 4834.232570][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4834.232570][   T73] 
[ 4834.236217][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4834.236217][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4834.236217][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4834.236217][   T73]      ipv6_find_idev+0x102/0x170
[ 4834.236217][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4834.236217][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4834.236217][   T73]      netlink_rcv_skb+0x130/0x360
[ 4834.236217][   T73]      netlink_unicast+0x449/0x710
[ 4834.236217][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4834.236217][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4834.236217][   T73]      ___sys_sendmsg+0xee/0x170
[ 4834.236217][   T73]      __sys_sendmsg+0xcd/0x170
[ 4834.236217][   T73]      do_syscall_64+0xc6/0x1e0
[ 4834.236217][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4834.236217][   T73] 
[ 4844.479700][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4844.480165][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4844.480165][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4844.480165][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4844.480165][   T73]      fib6_nh_init+0xa22/0x1580
[ 4844.480165][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4844.480165][   T73]      ip6_route_add+0x1c/0x140
[ 4844.480165][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4844.480165][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4844.480165][   T73]      netlink_rcv_skb+0x130/0x360
[ 4844.480165][   T73]      netlink_unicast+0x449/0x710
[ 4844.480165][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4844.480165][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4844.480165][   T73]      ___sys_sendmsg+0xee/0x170
[ 4844.480165][   T73]      __sys_sendmsg+0xcd/0x170
[ 4844.480165][   T73]      do_syscall_64+0xc6/0x1e0
[ 4844.480165][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4844.480165][   T73] 
[ 4844.482313][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4844.482313][   T73]      dst_init+0x84/0x4a0
[ 4844.482313][   T73]      dst_alloc+0x97/0x150
[ 4844.482313][   T73]      ip6_dst_alloc+0x23/0x90
[ 4844.482313][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4844.482313][   T73]      ip6_pol_route+0x56f/0x840
[ 4844.482313][   T73]      fib6_rule_lookup+0x456/0x630
[ 4844.482313][   T73]      ip6_route_input+0x59c/0xa50
[ 4844.482313][   T73]      ipv6_rcv+0x397/0x810
[ 4844.482313][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4844.482313][   T73]      process_backlog+0x101/0x620
[ 4844.482313][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4844.482313][   T73]      net_rx_action+0x495/0xbe0
[ 4844.482313][   T73]      __do_softirq+0x1b5/0x7f6
[ 4844.482313][   T73] 
[ 4844.484188][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4844.484188][   T73]      netdev_get_by_index+0x5e/0x80
[ 4844.484188][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4844.484188][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4844.484188][   T73]      ip6_route_add+0x1c/0x140
[ 4844.484188][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4844.484188][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4844.484188][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4844.484188][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4844.484188][   T73]      netlink_rcv_skb+0x130/0x360
[ 4844.484188][   T73]      netlink_unicast+0x449/0x710
[ 4844.484188][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4844.484188][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4844.484188][   T73]      ___sys_sendmsg+0xee/0x170
[ 4844.484188][   T73]      __sys_sendmsg+0xcd/0x170
[ 4844.484188][   T73]      do_syscall_64+0xc6/0x1e0
[ 4844.484188][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4844.484188][   T73] 
[ 4844.486448][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4844.486448][   T73]      netdev_get_by_index+0x5e/0x80
[ 4844.486448][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4844.486448][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4844.486448][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4844.486448][   T73]      ipv6_add_addr+0x411/0x2000
[ 4844.486448][   T73]      inet6_addr_add+0x30e/0xa40
[ 4844.486448][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4844.486448][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4844.486448][   T73]      netlink_rcv_skb+0x130/0x360
[ 4844.486448][   T73]      netlink_unicast+0x449/0x710
[ 4844.486448][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4844.486448][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4844.486448][   T73]      ___sys_sendmsg+0xee/0x170
[ 4844.486448][   T73]      __sys_sendmsg+0xcd/0x170
[ 4844.486448][   T73]      do_syscall_64+0xc6/0x1e0
[ 4844.486448][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4844.486448][   T73] 
[ 4844.488706][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4844.488706][   T73]      netdev_get_by_index+0x5e/0x80
[ 4844.488706][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4844.488706][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4844.488706][   T73]      ip6_route_add+0x1c/0x140
[ 4844.488706][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4844.488706][   T73]      addrconf_add_dev+0xe2/0x170
[ 4844.488706][   T73]      inet6_addr_add+0x12f/0xa40
[ 4844.488706][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4844.488706][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4844.488706][   T73]      netlink_rcv_skb+0x130/0x360
[ 4844.488706][   T73]      netlink_unicast+0x449/0x710
[ 4844.488706][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4844.488706][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4844.488706][   T73]      ___sys_sendmsg+0xee/0x170
[ 4844.488706][   T73]      __sys_sendmsg+0xcd/0x170
[ 4844.488706][   T73]      do_syscall_64+0xc6/0x1e0
[ 4844.488706][   T73] 
[ 4844.490935][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4844.490935][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4844.490935][   T73]      ipv6_find_idev+0x102/0x170
[ 4844.490935][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4844.490935][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4844.490935][   T73]      netlink_rcv_skb+0x130/0x360
[ 4844.490935][   T73]      netlink_unicast+0x449/0x710
[ 4844.490935][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4844.490935][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4844.490935][   T73]      ___sys_sendmsg+0xee/0x170
[ 4844.490935][   T73]      __sys_sendmsg+0xcd/0x170
[ 4844.490935][   T73]      do_syscall_64+0xc6/0x1e0
[ 4844.490935][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4844.490935][   T73] 
[ 4844.492677][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4844.492677][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4844.492677][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4844.492677][   T73]      ipv6_find_idev+0x102/0x170
[ 4844.492677][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4844.492677][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4844.492677][   T73]      netlink_rcv_skb+0x130/0x360
[ 4844.492677][   T73]      netlink_unicast+0x449/0x710
[ 4844.492677][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4844.492677][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4844.492677][   T73]      ___sys_sendmsg+0xee/0x170
[ 4844.492677][   T73]      __sys_sendmsg+0xcd/0x170
[ 4844.492677][   T73]      do_syscall_64+0xc6/0x1e0
[ 4844.492677][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4844.492677][   T73] 
[ 4844.494581][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4844.494903][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4844.494903][   T73]      netdev_get_by_index+0x5e/0x80
[ 4844.494903][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4844.494903][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4844.494903][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4844.494903][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4844.494903][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4844.494903][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4844.494903][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4844.494903][   T73]      addrconf_dad_begin+0x310/0x670
[ 4844.494903][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4844.494903][   T73]      process_one_work+0x84d/0x18a0
[ 4844.494903][   T73]      worker_thread+0x587/0xd30
[ 4844.494903][   T73]      kthread+0x28a/0x350
[ 4844.494903][   T73]      ret_from_fork+0x31/0x70
[ 4844.494903][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4844.494903][   T73] 
[ 4844.497086][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4844.497086][   T73]      netdev_get_by_index+0x5e/0x80
[ 4844.497086][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4844.497086][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4844.497086][   T73]      ip6_route_add+0x1c/0x140
[ 4844.497086][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4844.497086][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4844.497086][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4844.497086][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4844.497086][   T73]      netlink_rcv_skb+0x130/0x360
[ 4844.497086][   T73]      netlink_unicast+0x449/0x710
[ 4844.497086][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4844.497086][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4844.497086][   T73]      ___sys_sendmsg+0xee/0x170
[ 4844.497086][   T73]      __sys_sendmsg+0xcd/0x170
[ 4844.497086][   T73]      do_syscall_64+0xc6/0x1e0
[ 4844.497086][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4844.497086][   T73] 
[ 4844.499348][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4844.499348][   T73]      netdev_get_by_index+0x5e/0x80
[ 4844.499348][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4844.499348][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4844.499348][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4844.499348][   T73]      ipv6_add_addr+0x411/0x2000
[ 4844.499348][   T73]      inet6_addr_add+0x30e/0xa40
[ 4844.499348][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4844.499348][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4844.499348][   T73]      netlink_rcv_skb+0x130/0x360
[ 4844.499348][   T73]      netlink_unicast+0x449/0x710
[ 4844.499348][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4844.499348][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4844.499348][   T73]      ___sys_sendmsg+0xee/0x170
[ 4844.499348][   T73]      __sys_sendmsg+0xcd/0x170
[ 4844.499348][   T73]      do_syscall_64+0xc6/0x1e0
[ 4844.499348][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4844.499348][   T73] 
[ 4844.501621][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4844.501621][   T73]      netdev_get_by_index+0x5e/0x80
[ 4844.501621][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4844.501621][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4844.501621][   T73]      ip6_route_add+0x1c/0x140
[ 4844.501621][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4844.501621][   T73]      addrconf_add_dev+0xe2/0x170
[ 4844.501621][   T73]      inet6_addr_add+0x12f/0xa40
[ 4844.501621][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4844.501621][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4844.501621][   T73]      netlink_rcv_skb+0x130/0x360
[ 4844.501621][   T73]      netlink_unicast+0x449/0x710
[ 4844.501621][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4844.501621][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4844.501621][   T73]      ___sys_sendmsg+0xee/0x170
[ 4844.501621][   T73]      __sys_sendmsg+0xcd/0x170
[ 4844.501621][   T73]      do_syscall_64+0xc6/0x1e0
[ 4844.501621][   T73] 
[ 4844.503864][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4844.503864][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4844.503864][   T73]      ipv6_find_idev+0x102/0x170
[ 4844.503864][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4844.503864][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4844.503864][   T73]      netlink_rcv_skb+0x130/0x360
[ 4844.503864][   T73]      netlink_unicast+0x449/0x710
[ 4844.503864][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4844.503864][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4844.503864][   T73]      ___sys_sendmsg+0xee/0x170
[ 4844.503864][   T73]      __sys_sendmsg+0xcd/0x170
[ 4844.503864][   T73]      do_syscall_64+0xc6/0x1e0
[ 4844.503864][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4844.503864][   T73] 
[ 4844.505630][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4844.505630][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4844.505630][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4844.505630][   T73]      ipv6_find_idev+0x102/0x170
[ 4844.505630][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4844.505630][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4844.505630][   T73]      netlink_rcv_skb+0x130/0x360
[ 4844.505630][   T73]      netlink_unicast+0x449/0x710
[ 4844.505630][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4844.505630][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4844.505630][   T73]      ___sys_sendmsg+0xee/0x170
[ 4844.505630][   T73]      __sys_sendmsg+0xcd/0x170
[ 4844.505630][   T73]      do_syscall_64+0xc6/0x1e0
[ 4844.505630][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4844.505630][   T73] 
[ 4844.507531][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4844.507844][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4844.507844][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4844.507844][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4844.507844][   T73]      fib6_nh_init+0xa22/0x1580
[ 4844.507844][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4844.507844][   T73]      ip6_route_add+0x1c/0x140
[ 4844.507844][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4844.507844][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4844.507844][   T73]      netlink_rcv_skb+0x130/0x360
[ 4844.507844][   T73]      netlink_unicast+0x449/0x710
[ 4844.507844][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4844.507844][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4844.507844][   T73]      ___sys_sendmsg+0xee/0x170
[ 4844.507844][   T73]      __sys_sendmsg+0xcd/0x170
[ 4844.507844][   T73]      do_syscall_64+0xc6/0x1e0
[ 4844.507844][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4844.507844][   T73] 
[ 4844.510152][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4844.510152][   T73]      dst_init+0x84/0x4a0
[ 4844.510152][   T73]      dst_alloc+0x97/0x150
[ 4844.510152][   T73]      ip6_dst_alloc+0x23/0x90
[ 4844.510152][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4844.510152][   T73]      ip6_pol_route+0x56f/0x840
[ 4844.510152][   T73]      fib6_rule_lookup+0x456/0x630
[ 4844.510152][   T73]      ip6_route_input+0x59c/0xa50
[ 4844.510152][   T73]      ipv6_rcv+0x397/0x810
[ 4844.510152][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4844.510152][   T73]      process_backlog+0x101/0x620
[ 4844.510152][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4844.510152][   T73]      net_rx_action+0x495/0xbe0
[ 4844.510152][   T73]      __do_softirq+0x1b5/0x7f6
[ 4844.510152][   T73] 
[ 4844.512192][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4844.512192][   T73]      netdev_get_by_index+0x5e/0x80
[ 4844.512192][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4844.512192][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4844.512192][   T73]      ip6_route_add+0x1c/0x140
[ 4844.512192][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4844.512192][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4844.512192][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4844.512192][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4844.512192][   T73]      netlink_rcv_skb+0x130/0x360
[ 4844.512192][   T73]      netlink_unicast+0x449/0x710
[ 4844.512192][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4844.512192][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4844.512192][   T73]      ___sys_sendmsg+0xee/0x170
[ 4844.512192][   T73]      __sys_sendmsg+0xcd/0x170
[ 4844.512192][   T73]      do_syscall_64+0xc6/0x1e0
[ 4844.512192][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4844.512192][   T73] 
[ 4844.514795][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4844.514795][   T73]      netdev_get_by_index+0x5e/0x80
[ 4844.514795][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4844.514795][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4844.514795][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4844.514795][   T73]      ipv6_add_addr+0x411/0x2000
[ 4844.514795][   T73]      inet6_addr_add+0x30e/0xa40
[ 4844.514795][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4844.514795][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4844.514795][   T73]      netlink_rcv_skb+0x130/0x360
[ 4844.514795][   T73]      netlink_unicast+0x449/0x710
[ 4844.514795][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4844.514795][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4844.514795][   T73]      ___sys_sendmsg+0xee/0x170
[ 4844.514795][   T73]      __sys_sendmsg+0xcd/0x170
[ 4844.514795][   T73]      do_syscall_64+0xc6/0x1e0
[ 4844.514795][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4844.514795][   T73] 
[ 4844.517342][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4844.517342][   T73]      netdev_get_by_index+0x5e/0x80
[ 4844.517342][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4844.517342][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4844.517342][   T73]      ip6_route_add+0x1c/0x140
[ 4844.517342][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4844.517342][   T73]      addrconf_add_dev+0xe2/0x170
[ 4844.517342][   T73]      inet6_addr_add+0x12f/0xa40
[ 4844.517342][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4844.517342][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4844.517342][   T73]      netlink_rcv_skb+0x130/0x360
[ 4844.517342][   T73]      netlink_unicast+0x449/0x710
[ 4844.517342][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4844.517342][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4844.517342][   T73]      ___sys_sendmsg+0xee/0x170
[ 4844.517342][   T73]      __sys_sendmsg+0xcd/0x170
[ 4844.517342][   T73]      do_syscall_64+0xc6/0x1e0
[ 4844.517342][   T73] 
[ 4844.519751][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4844.519751][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4844.519751][   T73]      ipv6_find_idev+0x102/0x170
[ 4844.519751][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4844.519751][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4844.519751][   T73]      netlink_rcv_skb+0x130/0x360
[ 4844.519751][   T73]      netlink_unicast+0x449/0x710
[ 4844.519751][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4844.519751][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4844.519751][   T73]      ___sys_sendmsg+0xee/0x170
[ 4844.519751][   T73]      __sys_sendmsg+0xcd/0x170
[ 4844.519751][   T73]      do_syscall_64+0xc6/0x1e0
[ 4844.519751][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4844.519751][   T73] 
[ 4844.521680][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4844.521680][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4844.521680][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4844.521680][   T73]      ipv6_find_idev+0x102/0x170
[ 4844.521680][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4844.521680][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4844.521680][   T73]      netlink_rcv_skb+0x130/0x360
[ 4844.521680][   T73]      netlink_unicast+0x449/0x710
[ 4844.521680][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4844.521680][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4844.521680][   T73]      ___sys_sendmsg+0xee/0x170
[ 4844.521680][   T73]      __sys_sendmsg+0xcd/0x170
[ 4844.521680][   T73]      do_syscall_64+0xc6/0x1e0
[ 4844.521680][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4844.521680][   T73] 
[ 4844.523816][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4844.524119][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4844.524119][   T73]      netdev_get_by_index+0x5e/0x80
[ 4844.524119][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4844.524119][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4844.524119][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4844.524119][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4844.524119][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4844.524119][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4844.524119][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4844.524119][   T73]      addrconf_dad_begin+0x310/0x670
[ 4844.524119][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4844.524119][   T73]      process_one_work+0x84d/0x18a0
[ 4844.524119][   T73]      worker_thread+0x587/0xd30
[ 4844.524119][   T73]      kthread+0x28a/0x350
[ 4844.524119][   T73]      ret_from_fork+0x31/0x70
[ 4844.524119][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4844.524119][   T73] 
[ 4844.526597][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4844.526597][   T73]      netdev_get_by_index+0x5e/0x80
[ 4844.526597][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4844.526597][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4844.526597][   T73]      ip6_route_add+0x1c/0x140
[ 4844.526597][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4844.526597][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4844.526597][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4844.526597][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4844.526597][   T73]      netlink_rcv_skb+0x130/0x360
[ 4844.526597][   T73]      netlink_unicast+0x449/0x710
[ 4844.526597][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4844.526597][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4844.526597][   T73]      ___sys_sendmsg+0xee/0x170
[ 4844.526597][   T73]      __sys_sendmsg+0xcd/0x170
[ 4844.526597][   T73]      do_syscall_64+0xc6/0x1e0
[ 4844.526597][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4844.526597][   T73] 
[ 4844.529105][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4844.529105][   T73]      netdev_get_by_index+0x5e/0x80
[ 4844.529105][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4844.529105][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4844.529105][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4844.529105][   T73]      ipv6_add_addr+0x411/0x2000
[ 4844.529105][   T73]      inet6_addr_add+0x30e/0xa40
[ 4844.529105][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4844.529105][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4844.529105][   T73]      netlink_rcv_skb+0x130/0x360
[ 4844.529105][   T73]      netlink_unicast+0x449/0x710
[ 4844.529105][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4844.529105][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4844.529105][   T73]      ___sys_sendmsg+0xee/0x170
[ 4844.529105][   T73]      __sys_sendmsg+0xcd/0x170
[ 4844.529105][   T73]      do_syscall_64+0xc6/0x1e0
[ 4844.529105][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4844.529105][   T73] 
[ 4844.531543][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4844.531543][   T73]      netdev_get_by_index+0x5e/0x80
[ 4844.531543][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4844.531543][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4844.531543][   T73]      ip6_route_add+0x1c/0x140
[ 4844.531543][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4844.531543][   T73]      addrconf_add_dev+0xe2/0x170
[ 4844.531543][   T73]      inet6_addr_add+0x12f/0xa40
[ 4844.531543][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4844.531543][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4844.531543][   T73]      netlink_rcv_skb+0x130/0x360
[ 4844.531543][   T73]      netlink_unicast+0x449/0x710
[ 4844.531543][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4844.531543][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4844.531543][   T73]      ___sys_sendmsg+0xee/0x170
[ 4844.531543][   T73]      __sys_sendmsg+0xcd/0x170
[ 4844.531543][   T73]      do_syscall_64+0xc6/0x1e0
[ 4844.531543][   T73] 
[ 4844.534028][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4844.534028][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4844.534028][   T73]      ipv6_find_idev+0x102/0x170
[ 4844.534028][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4844.534028][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4844.534028][   T73]      netlink_rcv_skb+0x130/0x360
[ 4844.534028][   T73]      netlink_unicast+0x449/0x710
[ 4844.534028][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4844.534028][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4844.534028][   T73]      ___sys_sendmsg+0xee/0x170
[ 4844.534028][   T73]      __sys_sendmsg+0xcd/0x170
[ 4844.534028][   T73]      do_syscall_64+0xc6/0x1e0
[ 4844.534028][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4844.534028][   T73] 
[ 4844.535957][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4844.535957][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4844.535957][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4844.535957][   T73]      ipv6_find_idev+0x102/0x170
[ 4844.535957][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4844.535957][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4844.535957][   T73]      netlink_rcv_skb+0x130/0x360
[ 4844.535957][   T73]      netlink_unicast+0x449/0x710
[ 4844.535957][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4844.535957][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4844.535957][   T73]      ___sys_sendmsg+0xee/0x170
[ 4844.535957][   T73]      __sys_sendmsg+0xcd/0x170
[ 4844.535957][   T73]      do_syscall_64+0xc6/0x1e0
[ 4844.535957][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4844.535957][   T73] 
[ 4854.775759][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4854.776306][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4854.776306][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4854.776306][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4854.776306][   T73]      fib6_nh_init+0xa22/0x1580
[ 4854.776306][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4854.776306][   T73]      ip6_route_add+0x1c/0x140
[ 4854.776306][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4854.776306][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4854.776306][   T73]      netlink_rcv_skb+0x130/0x360
[ 4854.776306][   T73]      netlink_unicast+0x449/0x710
[ 4854.776306][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4854.776306][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4854.776306][   T73]      ___sys_sendmsg+0xee/0x170
[ 4854.776306][   T73]      __sys_sendmsg+0xcd/0x170
[ 4854.776306][   T73]      do_syscall_64+0xc6/0x1e0
[ 4854.776306][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4854.776306][   T73] 
[ 4854.778449][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4854.778449][   T73]      dst_init+0x84/0x4a0
[ 4854.778449][   T73]      dst_alloc+0x97/0x150
[ 4854.778449][   T73]      ip6_dst_alloc+0x23/0x90
[ 4854.778449][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4854.778449][   T73]      ip6_pol_route+0x56f/0x840
[ 4854.778449][   T73]      fib6_rule_lookup+0x456/0x630
[ 4854.778449][   T73]      ip6_route_input+0x59c/0xa50
[ 4854.778449][   T73]      ipv6_rcv+0x397/0x810
[ 4854.778449][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4854.778449][   T73]      process_backlog+0x101/0x620
[ 4854.778449][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4854.778449][   T73]      net_rx_action+0x495/0xbe0
[ 4854.778449][   T73]      __do_softirq+0x1b5/0x7f6
[ 4854.778449][   T73] 
[ 4854.780329][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4854.780329][   T73]      netdev_get_by_index+0x5e/0x80
[ 4854.780329][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4854.780329][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4854.780329][   T73]      ip6_route_add+0x1c/0x140
[ 4854.780329][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4854.780329][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4854.780329][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4854.780329][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4854.780329][   T73]      netlink_rcv_skb+0x130/0x360
[ 4854.780329][   T73]      netlink_unicast+0x449/0x710
[ 4854.780329][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4854.780329][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4854.780329][   T73]      ___sys_sendmsg+0xee/0x170
[ 4854.780329][   T73]      __sys_sendmsg+0xcd/0x170
[ 4854.780329][   T73]      do_syscall_64+0xc6/0x1e0
[ 4854.780329][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4854.780329][   T73] 
[ 4854.782610][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4854.782610][   T73]      netdev_get_by_index+0x5e/0x80
[ 4854.782610][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4854.782610][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4854.782610][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4854.782610][   T73]      ipv6_add_addr+0x411/0x2000
[ 4854.782610][   T73]      inet6_addr_add+0x30e/0xa40
[ 4854.782610][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4854.782610][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4854.782610][   T73]      netlink_rcv_skb+0x130/0x360
[ 4854.782610][   T73]      netlink_unicast+0x449/0x710
[ 4854.782610][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4854.782610][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4854.782610][   T73]      ___sys_sendmsg+0xee/0x170
[ 4854.782610][   T73]      __sys_sendmsg+0xcd/0x170
[ 4854.782610][   T73]      do_syscall_64+0xc6/0x1e0
[ 4854.782610][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4854.782610][   T73] 
[ 4854.784928][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4854.784928][   T73]      netdev_get_by_index+0x5e/0x80
[ 4854.784928][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4854.784928][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4854.784928][   T73]      ip6_route_add+0x1c/0x140
[ 4854.784928][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4854.784928][   T73]      addrconf_add_dev+0xe2/0x170
[ 4854.784928][   T73]      inet6_addr_add+0x12f/0xa40
[ 4854.784928][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4854.784928][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4854.784928][   T73]      netlink_rcv_skb+0x130/0x360
[ 4854.784928][   T73]      netlink_unicast+0x449/0x710
[ 4854.784928][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4854.784928][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4854.784928][   T73]      ___sys_sendmsg+0xee/0x170
[ 4854.784928][   T73]      __sys_sendmsg+0xcd/0x170
[ 4854.784928][   T73]      do_syscall_64+0xc6/0x1e0
[ 4854.784928][   T73] 
[ 4854.787139][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4854.787139][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4854.787139][   T73]      ipv6_find_idev+0x102/0x170
[ 4854.787139][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4854.787139][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4854.787139][   T73]      netlink_rcv_skb+0x130/0x360
[ 4854.787139][   T73]      netlink_unicast+0x449/0x710
[ 4854.787139][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4854.787139][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4854.787139][   T73]      ___sys_sendmsg+0xee/0x170
[ 4854.787139][   T73]      __sys_sendmsg+0xcd/0x170
[ 4854.787139][   T73]      do_syscall_64+0xc6/0x1e0
[ 4854.787139][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4854.787139][   T73] 
[ 4854.788858][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4854.788858][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4854.788858][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4854.788858][   T73]      ipv6_find_idev+0x102/0x170
[ 4854.788858][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4854.788858][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4854.788858][   T73]      netlink_rcv_skb+0x130/0x360
[ 4854.788858][   T73]      netlink_unicast+0x449/0x710
[ 4854.788858][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4854.788858][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4854.788858][   T73]      ___sys_sendmsg+0xee/0x170
[ 4854.788858][   T73]      __sys_sendmsg+0xcd/0x170
[ 4854.788858][   T73]      do_syscall_64+0xc6/0x1e0
[ 4854.788858][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4854.788858][   T73] 
[ 4854.790765][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4854.791072][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4854.791072][   T73]      netdev_get_by_index+0x5e/0x80
[ 4854.791072][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4854.791072][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4854.791072][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4854.791072][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4854.791072][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4854.791072][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4854.791072][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4854.791072][   T73]      addrconf_dad_begin+0x310/0x670
[ 4854.791072][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4854.791072][   T73]      process_one_work+0x84d/0x18a0
[ 4854.791072][   T73]      worker_thread+0x587/0xd30
[ 4854.791072][   T73]      kthread+0x28a/0x350
[ 4854.791072][   T73]      ret_from_fork+0x31/0x70
[ 4854.791072][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4854.791072][   T73] 
[ 4854.793233][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4854.793233][   T73]      netdev_get_by_index+0x5e/0x80
[ 4854.793233][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4854.793233][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4854.793233][   T73]      ip6_route_add+0x1c/0x140
[ 4854.793233][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4854.793233][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4854.793233][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4854.793233][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4854.793233][   T73]      netlink_rcv_skb+0x130/0x360
[ 4854.793233][   T73]      netlink_unicast+0x449/0x710
[ 4854.793233][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4854.793233][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4854.793233][   T73]      ___sys_sendmsg+0xee/0x170
[ 4854.793233][   T73]      __sys_sendmsg+0xcd/0x170
[ 4854.793233][   T73]      do_syscall_64+0xc6/0x1e0
[ 4854.793233][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4854.793233][   T73] 
[ 4854.795453][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4854.795453][   T73]      netdev_get_by_index+0x5e/0x80
[ 4854.795453][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4854.795453][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4854.795453][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4854.795453][   T73]      ipv6_add_addr+0x411/0x2000
[ 4854.795453][   T73]      inet6_addr_add+0x30e/0xa40
[ 4854.795453][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4854.795453][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4854.795453][   T73]      netlink_rcv_skb+0x130/0x360
[ 4854.795453][   T73]      netlink_unicast+0x449/0x710
[ 4854.795453][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4854.795453][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4854.795453][   T73]      ___sys_sendmsg+0xee/0x170
[ 4854.795453][   T73]      __sys_sendmsg+0xcd/0x170
[ 4854.795453][   T73]      do_syscall_64+0xc6/0x1e0
[ 4854.795453][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4854.795453][   T73] 
[ 4854.797768][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4854.797768][   T73]      netdev_get_by_index+0x5e/0x80
[ 4854.797768][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4854.797768][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4854.797768][   T73]      ip6_route_add+0x1c/0x140
[ 4854.797768][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4854.797768][   T73]      addrconf_add_dev+0xe2/0x170
[ 4854.797768][   T73]      inet6_addr_add+0x12f/0xa40
[ 4854.797768][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4854.797768][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4854.797768][   T73]      netlink_rcv_skb+0x130/0x360
[ 4854.797768][   T73]      netlink_unicast+0x449/0x710
[ 4854.797768][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4854.797768][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4854.797768][   T73]      ___sys_sendmsg+0xee/0x170
[ 4854.797768][   T73]      __sys_sendmsg+0xcd/0x170
[ 4854.797768][   T73]      do_syscall_64+0xc6/0x1e0
[ 4854.797768][   T73] 
[ 4854.800016][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4854.800016][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4854.800016][   T73]      ipv6_find_idev+0x102/0x170
[ 4854.800016][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4854.800016][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4854.800016][   T73]      netlink_rcv_skb+0x130/0x360
[ 4854.800016][   T73]      netlink_unicast+0x449/0x710
[ 4854.800016][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4854.800016][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4854.800016][   T73]      ___sys_sendmsg+0xee/0x170
[ 4854.800016][   T73]      __sys_sendmsg+0xcd/0x170
[ 4854.800016][   T73]      do_syscall_64+0xc6/0x1e0
[ 4854.800016][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4854.800016][   T73] 
[ 4854.801743][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4854.801743][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4854.801743][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4854.801743][   T73]      ipv6_find_idev+0x102/0x170
[ 4854.801743][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4854.801743][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4854.801743][   T73]      netlink_rcv_skb+0x130/0x360
[ 4854.801743][   T73]      netlink_unicast+0x449/0x710
[ 4854.801743][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4854.801743][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4854.801743][   T73]      ___sys_sendmsg+0xee/0x170
[ 4854.801743][   T73]      __sys_sendmsg+0xcd/0x170
[ 4854.801743][   T73]      do_syscall_64+0xc6/0x1e0
[ 4854.801743][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4854.801743][   T73] 
[ 4854.803653][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4854.803953][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4854.803953][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4854.803953][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4854.803953][   T73]      fib6_nh_init+0xa22/0x1580
[ 4854.803953][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4854.803953][   T73]      ip6_route_add+0x1c/0x140
[ 4854.803953][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4854.803953][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4854.803953][   T73]      netlink_rcv_skb+0x130/0x360
[ 4854.803953][   T73]      netlink_unicast+0x449/0x710
[ 4854.803953][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4854.803953][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4854.803953][   T73]      ___sys_sendmsg+0xee/0x170
[ 4854.803953][   T73]      __sys_sendmsg+0xcd/0x170
[ 4854.803953][   T73]      do_syscall_64+0xc6/0x1e0
[ 4854.803953][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4854.803953][   T73] 
[ 4854.806221][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4854.806221][   T73]      dst_init+0x84/0x4a0
[ 4854.806221][   T73]      dst_alloc+0x97/0x150
[ 4854.806221][   T73]      ip6_dst_alloc+0x23/0x90
[ 4854.806221][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4854.806221][   T73]      ip6_pol_route+0x56f/0x840
[ 4854.806221][   T73]      fib6_rule_lookup+0x456/0x630
[ 4854.806221][   T73]      ip6_route_input+0x59c/0xa50
[ 4854.806221][   T73]      ipv6_rcv+0x397/0x810
[ 4854.806221][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4854.806221][   T73]      process_backlog+0x101/0x620
[ 4854.806221][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4854.806221][   T73]      net_rx_action+0x495/0xbe0
[ 4854.806221][   T73]      __do_softirq+0x1b5/0x7f6
[ 4854.806221][   T73] 
[ 4854.808350][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4854.808350][   T73]      netdev_get_by_index+0x5e/0x80
[ 4854.808350][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4854.808350][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4854.808350][   T73]      ip6_route_add+0x1c/0x140
[ 4854.808350][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4854.808350][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4854.808350][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4854.808350][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4854.808350][   T73]      netlink_rcv_skb+0x130/0x360
[ 4854.808350][   T73]      netlink_unicast+0x449/0x710
[ 4854.808350][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4854.808350][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4854.808350][   T73]      ___sys_sendmsg+0xee/0x170
[ 4854.808350][   T73]      __sys_sendmsg+0xcd/0x170
[ 4854.808350][   T73]      do_syscall_64+0xc6/0x1e0
[ 4854.808350][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4854.808350][   T73] 
[ 4854.810845][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4854.810845][   T73]      netdev_get_by_index+0x5e/0x80
[ 4854.810845][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4854.810845][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4854.810845][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4854.810845][   T73]      ipv6_add_addr+0x411/0x2000
[ 4854.810845][   T73]      inet6_addr_add+0x30e/0xa40
[ 4854.810845][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4854.810845][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4854.810845][   T73]      netlink_rcv_skb+0x130/0x360
[ 4854.810845][   T73]      netlink_unicast+0x449/0x710
[ 4854.810845][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4854.810845][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4854.810845][   T73]      ___sys_sendmsg+0xee/0x170
[ 4854.810845][   T73]      __sys_sendmsg+0xcd/0x170
[ 4854.810845][   T73]      do_syscall_64+0xc6/0x1e0
[ 4854.810845][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4854.810845][   T73] 
[ 4854.813361][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4854.813361][   T73]      netdev_get_by_index+0x5e/0x80
[ 4854.813361][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4854.813361][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4854.813361][   T73]      ip6_route_add+0x1c/0x140
[ 4854.813361][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4854.813361][   T73]      addrconf_add_dev+0xe2/0x170
[ 4854.813361][   T73]      inet6_addr_add+0x12f/0xa40
[ 4854.813361][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4854.813361][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4854.813361][   T73]      netlink_rcv_skb+0x130/0x360
[ 4854.813361][   T73]      netlink_unicast+0x449/0x710
[ 4854.813361][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4854.813361][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4854.813361][   T73]      ___sys_sendmsg+0xee/0x170
[ 4854.813361][   T73]      __sys_sendmsg+0xcd/0x170
[ 4854.813361][   T73]      do_syscall_64+0xc6/0x1e0
[ 4854.813361][   T73] 
[ 4854.815794][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4854.815794][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4854.815794][   T73]      ipv6_find_idev+0x102/0x170
[ 4854.815794][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4854.815794][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4854.815794][   T73]      netlink_rcv_skb+0x130/0x360
[ 4854.815794][   T73]      netlink_unicast+0x449/0x710
[ 4854.815794][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4854.815794][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4854.815794][   T73]      ___sys_sendmsg+0xee/0x170
[ 4854.815794][   T73]      __sys_sendmsg+0xcd/0x170
[ 4854.815794][   T73]      do_syscall_64+0xc6/0x1e0
[ 4854.815794][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4854.815794][   T73] 
[ 4854.817778][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4854.817778][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4854.817778][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4854.817778][   T73]      ipv6_find_idev+0x102/0x170
[ 4854.817778][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4854.817778][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4854.817778][   T73]      netlink_rcv_skb+0x130/0x360
[ 4854.817778][   T73]      netlink_unicast+0x449/0x710
[ 4854.817778][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4854.817778][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4854.817778][   T73]      ___sys_sendmsg+0xee/0x170
[ 4854.817778][   T73]      __sys_sendmsg+0xcd/0x170
[ 4854.817778][   T73]      do_syscall_64+0xc6/0x1e0
[ 4854.817778][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4854.817778][   T73] 
[ 4854.819909][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4854.820211][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4854.820211][   T73]      netdev_get_by_index+0x5e/0x80
[ 4854.820211][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4854.820211][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4854.820211][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4854.820211][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4854.820211][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4854.820211][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4854.820211][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4854.820211][   T73]      addrconf_dad_begin+0x310/0x670
[ 4854.820211][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4854.820211][   T73]      process_one_work+0x84d/0x18a0
[ 4854.820211][   T73]      worker_thread+0x587/0xd30
[ 4854.820211][   T73]      kthread+0x28a/0x350
[ 4854.820211][   T73]      ret_from_fork+0x31/0x70
[ 4854.820211][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4854.820211][   T73] 
[ 4854.822619][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4854.822619][   T73]      netdev_get_by_index+0x5e/0x80
[ 4854.822619][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4854.822619][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4854.822619][   T73]      ip6_route_add+0x1c/0x140
[ 4854.822619][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4854.822619][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4854.822619][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4854.822619][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4854.822619][   T73]      netlink_rcv_skb+0x130/0x360
[ 4854.822619][   T73]      netlink_unicast+0x449/0x710
[ 4854.822619][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4854.822619][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4854.822619][   T73]      ___sys_sendmsg+0xee/0x170
[ 4854.822619][   T73]      __sys_sendmsg+0xcd/0x170
[ 4854.822619][   T73]      do_syscall_64+0xc6/0x1e0
[ 4854.822619][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4854.822619][   T73] 
[ 4854.825053][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4854.825053][   T73]      netdev_get_by_index+0x5e/0x80
[ 4854.825053][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4854.825053][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4854.825053][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4854.825053][   T73]      ipv6_add_addr+0x411/0x2000
[ 4854.825053][   T73]      inet6_addr_add+0x30e/0xa40
[ 4854.825053][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4854.825053][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4854.825053][   T73]      netlink_rcv_skb+0x130/0x360
[ 4854.825053][   T73]      netlink_unicast+0x449/0x710
[ 4854.825053][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4854.825053][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4854.825053][   T73]      ___sys_sendmsg+0xee/0x170
[ 4854.825053][   T73]      __sys_sendmsg+0xcd/0x170
[ 4854.825053][   T73]      do_syscall_64+0xc6/0x1e0
[ 4854.825053][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4854.825053][   T73] 
[ 4854.827591][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4854.827591][   T73]      netdev_get_by_index+0x5e/0x80
[ 4854.827591][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4854.827591][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4854.827591][   T73]      ip6_route_add+0x1c/0x140
[ 4854.827591][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4854.827591][   T73]      addrconf_add_dev+0xe2/0x170
[ 4854.827591][   T73]      inet6_addr_add+0x12f/0xa40
[ 4854.827591][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4854.827591][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4854.827591][   T73]      netlink_rcv_skb+0x130/0x360
[ 4854.827591][   T73]      netlink_unicast+0x449/0x710
[ 4854.827591][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4854.827591][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4854.827591][   T73]      ___sys_sendmsg+0xee/0x170
[ 4854.827591][   T73]      __sys_sendmsg+0xcd/0x170
[ 4854.827591][   T73]      do_syscall_64+0xc6/0x1e0
[ 4854.827591][   T73] 
[ 4854.830114][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4854.830114][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4854.830114][   T73]      ipv6_find_idev+0x102/0x170
[ 4854.830114][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4854.830114][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4854.830114][   T73]      netlink_rcv_skb+0x130/0x360
[ 4854.830114][   T73]      netlink_unicast+0x449/0x710
[ 4854.830114][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4854.830114][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4854.830114][   T73]      ___sys_sendmsg+0xee/0x170
[ 4854.830114][   T73]      __sys_sendmsg+0xcd/0x170
[ 4854.830114][   T73]      do_syscall_64+0xc6/0x1e0
[ 4854.830114][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4854.830114][   T73] 
[ 4854.832072][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4854.832072][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4854.832072][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4854.832072][   T73]      ipv6_find_idev+0x102/0x170
[ 4854.832072][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4854.832072][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4854.832072][   T73]      netlink_rcv_skb+0x130/0x360
[ 4854.832072][   T73]      netlink_unicast+0x449/0x710
[ 4854.832072][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4854.832072][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4854.832072][   T73]      ___sys_sendmsg+0xee/0x170
[ 4854.832072][   T73]      __sys_sendmsg+0xcd/0x170
[ 4854.832072][   T73]      do_syscall_64+0xc6/0x1e0
[ 4854.832072][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4854.832072][   T73] 
[ 4865.071732][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4865.072244][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4865.072244][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4865.072244][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4865.072244][   T73]      fib6_nh_init+0xa22/0x1580
[ 4865.072244][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4865.072244][   T73]      ip6_route_add+0x1c/0x140
[ 4865.072244][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4865.072244][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4865.072244][   T73]      netlink_rcv_skb+0x130/0x360
[ 4865.072244][   T73]      netlink_unicast+0x449/0x710
[ 4865.072244][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4865.072244][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4865.072244][   T73]      ___sys_sendmsg+0xee/0x170
[ 4865.072244][   T73]      __sys_sendmsg+0xcd/0x170
[ 4865.072244][   T73]      do_syscall_64+0xc6/0x1e0
[ 4865.072244][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4865.072244][   T73] 
[ 4865.074383][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4865.074383][   T73]      dst_init+0x84/0x4a0
[ 4865.074383][   T73]      dst_alloc+0x97/0x150
[ 4865.074383][   T73]      ip6_dst_alloc+0x23/0x90
[ 4865.074383][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4865.074383][   T73]      ip6_pol_route+0x56f/0x840
[ 4865.074383][   T73]      fib6_rule_lookup+0x456/0x630
[ 4865.074383][   T73]      ip6_route_input+0x59c/0xa50
[ 4865.074383][   T73]      ipv6_rcv+0x397/0x810
[ 4865.074383][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4865.074383][   T73]      process_backlog+0x101/0x620
[ 4865.074383][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4865.074383][   T73]      net_rx_action+0x495/0xbe0
[ 4865.074383][   T73]      __do_softirq+0x1b5/0x7f6
[ 4865.074383][   T73] 
[ 4865.076236][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4865.076236][   T73]      netdev_get_by_index+0x5e/0x80
[ 4865.076236][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4865.076236][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4865.076236][   T73]      ip6_route_add+0x1c/0x140
[ 4865.076236][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4865.076236][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4865.076236][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4865.076236][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4865.076236][   T73]      netlink_rcv_skb+0x130/0x360
[ 4865.076236][   T73]      netlink_unicast+0x449/0x710
[ 4865.076236][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4865.076236][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4865.076236][   T73]      ___sys_sendmsg+0xee/0x170
[ 4865.076236][   T73]      __sys_sendmsg+0xcd/0x170
[ 4865.076236][   T73]      do_syscall_64+0xc6/0x1e0
[ 4865.076236][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4865.076236][   T73] 
[ 4865.078481][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4865.078481][   T73]      netdev_get_by_index+0x5e/0x80
[ 4865.078481][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4865.078481][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4865.078481][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4865.078481][   T73]      ipv6_add_addr+0x411/0x2000
[ 4865.078481][   T73]      inet6_addr_add+0x30e/0xa40
[ 4865.078481][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4865.078481][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4865.078481][   T73]      netlink_rcv_skb+0x130/0x360
[ 4865.078481][   T73]      netlink_unicast+0x449/0x710
[ 4865.078481][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4865.078481][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4865.078481][   T73]      ___sys_sendmsg+0xee/0x170
[ 4865.078481][   T73]      __sys_sendmsg+0xcd/0x170
[ 4865.078481][   T73]      do_syscall_64+0xc6/0x1e0
[ 4865.078481][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4865.078481][   T73] 
[ 4865.080880][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4865.080880][   T73]      netdev_get_by_index+0x5e/0x80
[ 4865.080880][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4865.080880][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4865.080880][   T73]      ip6_route_add+0x1c/0x140
[ 4865.080880][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4865.080880][   T73]      addrconf_add_dev+0xe2/0x170
[ 4865.080880][   T73]      inet6_addr_add+0x12f/0xa40
[ 4865.080880][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4865.080880][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4865.080880][   T73]      netlink_rcv_skb+0x130/0x360
[ 4865.080880][   T73]      netlink_unicast+0x449/0x710
[ 4865.080880][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4865.080880][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4865.080880][   T73]      ___sys_sendmsg+0xee/0x170
[ 4865.080880][   T73]      __sys_sendmsg+0xcd/0x170
[ 4865.080880][   T73]      do_syscall_64+0xc6/0x1e0
[ 4865.080880][   T73] 
[ 4865.083092][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4865.083092][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4865.083092][   T73]      ipv6_find_idev+0x102/0x170
[ 4865.083092][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4865.083092][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4865.083092][   T73]      netlink_rcv_skb+0x130/0x360
[ 4865.083092][   T73]      netlink_unicast+0x449/0x710
[ 4865.083092][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4865.083092][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4865.083092][   T73]      ___sys_sendmsg+0xee/0x170
[ 4865.083092][   T73]      __sys_sendmsg+0xcd/0x170
[ 4865.083092][   T73]      do_syscall_64+0xc6/0x1e0
[ 4865.083092][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4865.083092][   T73] 
[ 4865.084834][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4865.084834][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4865.084834][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4865.084834][   T73]      ipv6_find_idev+0x102/0x170
[ 4865.084834][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4865.084834][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4865.084834][   T73]      netlink_rcv_skb+0x130/0x360
[ 4865.084834][   T73]      netlink_unicast+0x449/0x710
[ 4865.084834][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4865.084834][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4865.084834][   T73]      ___sys_sendmsg+0xee/0x170
[ 4865.084834][   T73]      __sys_sendmsg+0xcd/0x170
[ 4865.084834][   T73]      do_syscall_64+0xc6/0x1e0
[ 4865.084834][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4865.084834][   T73] 
[ 4865.086743][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4865.087063][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4865.087063][   T73]      netdev_get_by_index+0x5e/0x80
[ 4865.087063][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4865.087063][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4865.087063][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4865.087063][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4865.087063][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4865.087063][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4865.087063][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4865.087063][   T73]      addrconf_dad_begin+0x310/0x670
[ 4865.087063][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4865.087063][   T73]      process_one_work+0x84d/0x18a0
[ 4865.087063][   T73]      worker_thread+0x587/0xd30
[ 4865.087063][   T73]      kthread+0x28a/0x350
[ 4865.087063][   T73]      ret_from_fork+0x31/0x70
[ 4865.087063][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4865.087063][   T73] 
[ 4865.089194][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4865.089194][   T73]      netdev_get_by_index+0x5e/0x80
[ 4865.089194][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4865.089194][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4865.089194][   T73]      ip6_route_add+0x1c/0x140
[ 4865.089194][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4865.089194][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4865.089194][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4865.089194][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4865.089194][   T73]      netlink_rcv_skb+0x130/0x360
[ 4865.089194][   T73]      netlink_unicast+0x449/0x710
[ 4865.089194][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4865.089194][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4865.089194][   T73]      ___sys_sendmsg+0xee/0x170
[ 4865.089194][   T73]      __sys_sendmsg+0xcd/0x170
[ 4865.089194][   T73]      do_syscall_64+0xc6/0x1e0
[ 4865.089194][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4865.089194][   T73] 
[ 4865.091441][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4865.091441][   T73]      netdev_get_by_index+0x5e/0x80
[ 4865.091441][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4865.091441][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4865.091441][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4865.091441][   T73]      ipv6_add_addr+0x411/0x2000
[ 4865.091441][   T73]      inet6_addr_add+0x30e/0xa40
[ 4865.091441][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4865.091441][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4865.091441][   T73]      netlink_rcv_skb+0x130/0x360
[ 4865.091441][   T73]      netlink_unicast+0x449/0x710
[ 4865.091441][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4865.091441][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4865.091441][   T73]      ___sys_sendmsg+0xee/0x170
[ 4865.091441][   T73]      __sys_sendmsg+0xcd/0x170
[ 4865.091441][   T73]      do_syscall_64+0xc6/0x1e0
[ 4865.091441][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4865.091441][   T73] 
[ 4865.093706][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4865.093706][   T73]      netdev_get_by_index+0x5e/0x80
[ 4865.093706][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4865.093706][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4865.093706][   T73]      ip6_route_add+0x1c/0x140
[ 4865.093706][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4865.093706][   T73]      addrconf_add_dev+0xe2/0x170
[ 4865.093706][   T73]      inet6_addr_add+0x12f/0xa40
[ 4865.093706][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4865.093706][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4865.093706][   T73]      netlink_rcv_skb+0x130/0x360
[ 4865.093706][   T73]      netlink_unicast+0x449/0x710
[ 4865.093706][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4865.093706][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4865.093706][   T73]      ___sys_sendmsg+0xee/0x170
[ 4865.093706][   T73]      __sys_sendmsg+0xcd/0x170
[ 4865.093706][   T73]      do_syscall_64+0xc6/0x1e0
[ 4865.093706][   T73] 
[ 4865.095918][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4865.095918][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4865.095918][   T73]      ipv6_find_idev+0x102/0x170
[ 4865.095918][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4865.095918][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4865.095918][   T73]      netlink_rcv_skb+0x130/0x360
[ 4865.095918][   T73]      netlink_unicast+0x449/0x710
[ 4865.095918][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4865.095918][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4865.095918][   T73]      ___sys_sendmsg+0xee/0x170
[ 4865.095918][   T73]      __sys_sendmsg+0xcd/0x170
[ 4865.095918][   T73]      do_syscall_64+0xc6/0x1e0
[ 4865.095918][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4865.095918][   T73] 
[ 4865.097654][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4865.097654][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4865.097654][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4865.097654][   T73]      ipv6_find_idev+0x102/0x170
[ 4865.097654][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4865.097654][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4865.097654][   T73]      netlink_rcv_skb+0x130/0x360
[ 4865.097654][   T73]      netlink_unicast+0x449/0x710
[ 4865.097654][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4865.097654][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4865.097654][   T73]      ___sys_sendmsg+0xee/0x170
[ 4865.097654][   T73]      __sys_sendmsg+0xcd/0x170
[ 4865.097654][   T73]      do_syscall_64+0xc6/0x1e0
[ 4865.097654][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4865.097654][   T73] 
[ 4865.099560][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4865.099883][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4865.099883][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4865.099883][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4865.099883][   T73]      fib6_nh_init+0xa22/0x1580
[ 4865.099883][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4865.099883][   T73]      ip6_route_add+0x1c/0x140
[ 4865.099883][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4865.099883][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4865.099883][   T73]      netlink_rcv_skb+0x130/0x360
[ 4865.099883][   T73]      netlink_unicast+0x449/0x710
[ 4865.099883][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4865.099883][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4865.099883][   T73]      ___sys_sendmsg+0xee/0x170
[ 4865.099883][   T73]      __sys_sendmsg+0xcd/0x170
[ 4865.099883][   T73]      do_syscall_64+0xc6/0x1e0
[ 4865.099883][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4865.099883][   T73] 
[ 4865.102202][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4865.102202][   T73]      dst_init+0x84/0x4a0
[ 4865.102202][   T73]      dst_alloc+0x97/0x150
[ 4865.102202][   T73]      ip6_dst_alloc+0x23/0x90
[ 4865.102202][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4865.102202][   T73]      ip6_pol_route+0x56f/0x840
[ 4865.102202][   T73]      fib6_rule_lookup+0x456/0x630
[ 4865.102202][   T73]      ip6_route_input+0x59c/0xa50
[ 4865.102202][   T73]      ipv6_rcv+0x397/0x810
[ 4865.102202][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4865.102202][   T73]      process_backlog+0x101/0x620
[ 4865.102202][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4865.102202][   T73]      net_rx_action+0x495/0xbe0
[ 4865.102202][   T73]      __do_softirq+0x1b5/0x7f6
[ 4865.102202][   T73] 
[ 4865.104249][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4865.104249][   T73]      netdev_get_by_index+0x5e/0x80
[ 4865.104249][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4865.104249][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4865.104249][   T73]      ip6_route_add+0x1c/0x140
[ 4865.104249][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4865.104249][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4865.104249][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4865.104249][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4865.104249][   T73]      netlink_rcv_skb+0x130/0x360
[ 4865.104249][   T73]      netlink_unicast+0x449/0x710
[ 4865.104249][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4865.104249][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4865.104249][   T73]      ___sys_sendmsg+0xee/0x170
[ 4865.104249][   T73]      __sys_sendmsg+0xcd/0x170
[ 4865.104249][   T73]      do_syscall_64+0xc6/0x1e0
[ 4865.104249][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4865.104249][   T73] 
[ 4865.106745][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4865.106745][   T73]      netdev_get_by_index+0x5e/0x80
[ 4865.106745][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4865.106745][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4865.106745][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4865.106745][   T73]      ipv6_add_addr+0x411/0x2000
[ 4865.106745][   T73]      inet6_addr_add+0x30e/0xa40
[ 4865.106745][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4865.106745][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4865.106745][   T73]      netlink_rcv_skb+0x130/0x360
[ 4865.106745][   T73]      netlink_unicast+0x449/0x710
[ 4865.106745][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4865.106745][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4865.106745][   T73]      ___sys_sendmsg+0xee/0x170
[ 4865.106745][   T73]      __sys_sendmsg+0xcd/0x170
[ 4865.106745][   T73]      do_syscall_64+0xc6/0x1e0
[ 4865.106745][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4865.106745][   T73] 
[ 4865.109355][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4865.109355][   T73]      netdev_get_by_index+0x5e/0x80
[ 4865.109355][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4865.109355][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4865.109355][   T73]      ip6_route_add+0x1c/0x140
[ 4865.109355][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4865.109355][   T73]      addrconf_add_dev+0xe2/0x170
[ 4865.109355][   T73]      inet6_addr_add+0x12f/0xa40
[ 4865.109355][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4865.109355][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4865.109355][   T73]      netlink_rcv_skb+0x130/0x360
[ 4865.109355][   T73]      netlink_unicast+0x449/0x710
[ 4865.109355][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4865.109355][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4865.109355][   T73]      ___sys_sendmsg+0xee/0x170
[ 4865.109355][   T73]      __sys_sendmsg+0xcd/0x170
[ 4865.109355][   T73]      do_syscall_64+0xc6/0x1e0
[ 4865.109355][   T73] 
[ 4865.111751][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4865.111751][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4865.111751][   T73]      ipv6_find_idev+0x102/0x170
[ 4865.111751][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4865.111751][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4865.111751][   T73]      netlink_rcv_skb+0x130/0x360
[ 4865.111751][   T73]      netlink_unicast+0x449/0x710
[ 4865.111751][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4865.111751][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4865.111751][   T73]      ___sys_sendmsg+0xee/0x170
[ 4865.111751][   T73]      __sys_sendmsg+0xcd/0x170
[ 4865.111751][   T73]      do_syscall_64+0xc6/0x1e0
[ 4865.111751][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4865.111751][   T73] 
[ 4865.113620][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4865.113620][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4865.113620][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4865.113620][   T73]      ipv6_find_idev+0x102/0x170
[ 4865.113620][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4865.113620][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4865.113620][   T73]      netlink_rcv_skb+0x130/0x360
[ 4865.113620][   T73]      netlink_unicast+0x449/0x710
[ 4865.113620][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4865.113620][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4865.113620][   T73]      ___sys_sendmsg+0xee/0x170
[ 4865.113620][   T73]      __sys_sendmsg+0xcd/0x170
[ 4865.113620][   T73]      do_syscall_64+0xc6/0x1e0
[ 4865.113620][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4865.113620][   T73] 
[ 4865.115775][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4865.116078][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4865.116078][   T73]      netdev_get_by_index+0x5e/0x80
[ 4865.116078][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4865.116078][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4865.116078][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4865.116078][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4865.116078][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4865.116078][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4865.116078][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4865.116078][   T73]      addrconf_dad_begin+0x310/0x670
[ 4865.116078][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4865.116078][   T73]      process_one_work+0x84d/0x18a0
[ 4865.116078][   T73]      worker_thread+0x587/0xd30
[ 4865.116078][   T73]      kthread+0x28a/0x350
[ 4865.116078][   T73]      ret_from_fork+0x31/0x70
[ 4865.116078][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4865.116078][   T73] 
[ 4865.118477][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4865.118477][   T73]      netdev_get_by_index+0x5e/0x80
[ 4865.118477][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4865.118477][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4865.118477][   T73]      ip6_route_add+0x1c/0x140
[ 4865.118477][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4865.118477][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4865.118477][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4865.118477][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4865.118477][   T73]      netlink_rcv_skb+0x130/0x360
[ 4865.118477][   T73]      netlink_unicast+0x449/0x710
[ 4865.118477][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4865.118477][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4865.118477][   T73]      ___sys_sendmsg+0xee/0x170
[ 4865.118477][   T73]      __sys_sendmsg+0xcd/0x170
[ 4865.118477][   T73]      do_syscall_64+0xc6/0x1e0
[ 4865.118477][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4865.118477][   T73] 
[ 4865.121030][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4865.121030][   T73]      netdev_get_by_index+0x5e/0x80
[ 4865.121030][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4865.121030][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4865.121030][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4865.121030][   T73]      ipv6_add_addr+0x411/0x2000
[ 4865.121030][   T73]      inet6_addr_add+0x30e/0xa40
[ 4865.121030][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4865.121030][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4865.121030][   T73]      netlink_rcv_skb+0x130/0x360
[ 4865.121030][   T73]      netlink_unicast+0x449/0x710
[ 4865.121030][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4865.121030][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4865.121030][   T73]      ___sys_sendmsg+0xee/0x170
[ 4865.121030][   T73]      __sys_sendmsg+0xcd/0x170
[ 4865.121030][   T73]      do_syscall_64+0xc6/0x1e0
[ 4865.121030][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4865.121030][   T73] 
[ 4865.123463][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4865.123463][   T73]      netdev_get_by_index+0x5e/0x80
[ 4865.123463][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4865.123463][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4865.123463][   T73]      ip6_route_add+0x1c/0x140
[ 4865.123463][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4865.123463][   T73]      addrconf_add_dev+0xe2/0x170
[ 4865.123463][   T73]      inet6_addr_add+0x12f/0xa40
[ 4865.123463][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4865.123463][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4865.123463][   T73]      netlink_rcv_skb+0x130/0x360
[ 4865.123463][   T73]      netlink_unicast+0x449/0x710
[ 4865.123463][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4865.123463][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4865.123463][   T73]      ___sys_sendmsg+0xee/0x170
[ 4865.123463][   T73]      __sys_sendmsg+0xcd/0x170
[ 4865.123463][   T73]      do_syscall_64+0xc6/0x1e0
[ 4865.123463][   T73] 
[ 4865.125925][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4865.125925][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4865.125925][   T73]      ipv6_find_idev+0x102/0x170
[ 4865.125925][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4865.125925][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4865.125925][   T73]      netlink_rcv_skb+0x130/0x360
[ 4865.125925][   T73]      netlink_unicast+0x449/0x710
[ 4865.125925][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4865.125925][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4865.125925][   T73]      ___sys_sendmsg+0xee/0x170
[ 4865.125925][   T73]      __sys_sendmsg+0xcd/0x170
[ 4865.125925][   T73]      do_syscall_64+0xc6/0x1e0
[ 4865.125925][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4865.125925][   T73] 
[ 4865.127849][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4865.127849][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4865.127849][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4865.127849][   T73]      ipv6_find_idev+0x102/0x170
[ 4865.127849][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4865.127849][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4865.127849][   T73]      netlink_rcv_skb+0x130/0x360
[ 4865.127849][   T73]      netlink_unicast+0x449/0x710
[ 4865.127849][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4865.127849][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4865.127849][   T73]      ___sys_sendmsg+0xee/0x170
[ 4865.127849][   T73]      __sys_sendmsg+0xcd/0x170
[ 4865.127849][   T73]      do_syscall_64+0xc6/0x1e0
[ 4865.127849][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4865.127849][   T73] 
[ 4875.367700][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4875.368209][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4875.368209][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4875.368209][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4875.368209][   T73]      fib6_nh_init+0xa22/0x1580
[ 4875.368209][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4875.368209][   T73]      ip6_route_add+0x1c/0x140
[ 4875.368209][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4875.368209][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4875.368209][   T73]      netlink_rcv_skb+0x130/0x360
[ 4875.368209][   T73]      netlink_unicast+0x449/0x710
[ 4875.368209][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4875.368209][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4875.368209][   T73]      ___sys_sendmsg+0xee/0x170
[ 4875.368209][   T73]      __sys_sendmsg+0xcd/0x170
[ 4875.368209][   T73]      do_syscall_64+0xc6/0x1e0
[ 4875.368209][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4875.368209][   T73] 
[ 4875.370373][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4875.370373][   T73]      dst_init+0x84/0x4a0
[ 4875.370373][   T73]      dst_alloc+0x97/0x150
[ 4875.370373][   T73]      ip6_dst_alloc+0x23/0x90
[ 4875.370373][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4875.370373][   T73]      ip6_pol_route+0x56f/0x840
[ 4875.370373][   T73]      fib6_rule_lookup+0x456/0x630
[ 4875.370373][   T73]      ip6_route_input+0x59c/0xa50
[ 4875.370373][   T73]      ipv6_rcv+0x397/0x810
[ 4875.370373][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4875.370373][   T73]      process_backlog+0x101/0x620
[ 4875.370373][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4875.370373][   T73]      net_rx_action+0x495/0xbe0
[ 4875.370373][   T73]      __do_softirq+0x1b5/0x7f6
[ 4875.370373][   T73] 
[ 4875.372232][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4875.372232][   T73]      netdev_get_by_index+0x5e/0x80
[ 4875.372232][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4875.372232][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4875.372232][   T73]      ip6_route_add+0x1c/0x140
[ 4875.372232][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4875.372232][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4875.372232][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4875.372232][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4875.372232][   T73]      netlink_rcv_skb+0x130/0x360
[ 4875.372232][   T73]      netlink_unicast+0x449/0x710
[ 4875.372232][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4875.372232][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4875.372232][   T73]      ___sys_sendmsg+0xee/0x170
[ 4875.372232][   T73]      __sys_sendmsg+0xcd/0x170
[ 4875.372232][   T73]      do_syscall_64+0xc6/0x1e0
[ 4875.372232][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4875.372232][   T73] 
[ 4875.374593][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4875.374593][   T73]      netdev_get_by_index+0x5e/0x80
[ 4875.374593][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4875.374593][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4875.374593][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4875.374593][   T73]      ipv6_add_addr+0x411/0x2000
[ 4875.374593][   T73]      inet6_addr_add+0x30e/0xa40
[ 4875.374593][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4875.374593][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4875.374593][   T73]      netlink_rcv_skb+0x130/0x360
[ 4875.374593][   T73]      netlink_unicast+0x449/0x710
[ 4875.374593][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4875.374593][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4875.374593][   T73]      ___sys_sendmsg+0xee/0x170
[ 4875.374593][   T73]      __sys_sendmsg+0xcd/0x170
[ 4875.374593][   T73]      do_syscall_64+0xc6/0x1e0
[ 4875.374593][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4875.374593][   T73] 
[ 4875.376851][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4875.376851][   T73]      netdev_get_by_index+0x5e/0x80
[ 4875.376851][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4875.376851][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4875.376851][   T73]      ip6_route_add+0x1c/0x140
[ 4875.376851][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4875.376851][   T73]      addrconf_add_dev+0xe2/0x170
[ 4875.376851][   T73]      inet6_addr_add+0x12f/0xa40
[ 4875.376851][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4875.376851][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4875.376851][   T73]      netlink_rcv_skb+0x130/0x360
[ 4875.376851][   T73]      netlink_unicast+0x449/0x710
[ 4875.376851][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4875.376851][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4875.376851][   T73]      ___sys_sendmsg+0xee/0x170
[ 4875.376851][   T73]      __sys_sendmsg+0xcd/0x170
[ 4875.376851][   T73]      do_syscall_64+0xc6/0x1e0
[ 4875.376851][   T73] 
[ 4875.379069][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4875.379069][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4875.379069][   T73]      ipv6_find_idev+0x102/0x170
[ 4875.379069][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4875.379069][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4875.379069][   T73]      netlink_rcv_skb+0x130/0x360
[ 4875.379069][   T73]      netlink_unicast+0x449/0x710
[ 4875.379069][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4875.379069][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4875.379069][   T73]      ___sys_sendmsg+0xee/0x170
[ 4875.379069][   T73]      __sys_sendmsg+0xcd/0x170
[ 4875.379069][   T73]      do_syscall_64+0xc6/0x1e0
[ 4875.379069][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4875.379069][   T73] 
[ 4875.380816][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4875.380816][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4875.380816][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4875.380816][   T73]      ipv6_find_idev+0x102/0x170
[ 4875.380816][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4875.380816][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4875.380816][   T73]      netlink_rcv_skb+0x130/0x360
[ 4875.380816][   T73]      netlink_unicast+0x449/0x710
[ 4875.380816][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4875.380816][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4875.380816][   T73]      ___sys_sendmsg+0xee/0x170
[ 4875.380816][   T73]      __sys_sendmsg+0xcd/0x170
[ 4875.380816][   T73]      do_syscall_64+0xc6/0x1e0
[ 4875.380816][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4875.380816][   T73] 
[ 4875.382830][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4875.383142][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4875.383142][   T73]      netdev_get_by_index+0x5e/0x80
[ 4875.383142][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4875.383142][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4875.383142][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4875.383142][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4875.383142][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4875.383142][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4875.383142][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4875.383142][   T73]      addrconf_dad_begin+0x310/0x670
[ 4875.383142][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4875.383142][   T73]      process_one_work+0x84d/0x18a0
[ 4875.383142][   T73]      worker_thread+0x587/0xd30
[ 4875.383142][   T73]      kthread+0x28a/0x350
[ 4875.383142][   T73]      ret_from_fork+0x31/0x70
[ 4875.383142][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4875.383142][   T73] 
[ 4875.385300][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4875.385300][   T73]      netdev_get_by_index+0x5e/0x80
[ 4875.385300][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4875.385300][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4875.385300][   T73]      ip6_route_add+0x1c/0x140
[ 4875.385300][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4875.385300][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4875.385300][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4875.385300][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4875.385300][   T73]      netlink_rcv_skb+0x130/0x360
[ 4875.385300][   T73]      netlink_unicast+0x449/0x710
[ 4875.385300][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4875.385300][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4875.385300][   T73]      ___sys_sendmsg+0xee/0x170
[ 4875.385300][   T73]      __sys_sendmsg+0xcd/0x170
[ 4875.385300][   T73]      do_syscall_64+0xc6/0x1e0
[ 4875.385300][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4875.385300][   T73] 
[ 4875.387554][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4875.387554][   T73]      netdev_get_by_index+0x5e/0x80
[ 4875.387554][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4875.387554][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4875.387554][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4875.387554][   T73]      ipv6_add_addr+0x411/0x2000
[ 4875.387554][   T73]      inet6_addr_add+0x30e/0xa40
[ 4875.387554][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4875.387554][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4875.387554][   T73]      netlink_rcv_skb+0x130/0x360
[ 4875.387554][   T73]      netlink_unicast+0x449/0x710
[ 4875.387554][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4875.387554][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4875.387554][   T73]      ___sys_sendmsg+0xee/0x170
[ 4875.387554][   T73]      __sys_sendmsg+0xcd/0x170
[ 4875.387554][   T73]      do_syscall_64+0xc6/0x1e0
[ 4875.387554][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4875.387554][   T73] 
[ 4875.389813][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4875.389813][   T73]      netdev_get_by_index+0x5e/0x80
[ 4875.389813][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4875.389813][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4875.389813][   T73]      ip6_route_add+0x1c/0x140
[ 4875.389813][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4875.389813][   T73]      addrconf_add_dev+0xe2/0x170
[ 4875.389813][   T73]      inet6_addr_add+0x12f/0xa40
[ 4875.389813][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4875.389813][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4875.389813][   T73]      netlink_rcv_skb+0x130/0x360
[ 4875.389813][   T73]      netlink_unicast+0x449/0x710
[ 4875.389813][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4875.389813][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4875.389813][   T73]      ___sys_sendmsg+0xee/0x170
[ 4875.389813][   T73]      __sys_sendmsg+0xcd/0x170
[ 4875.389813][   T73]      do_syscall_64+0xc6/0x1e0
[ 4875.389813][   T73] 
[ 4875.392071][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4875.392071][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4875.392071][   T73]      ipv6_find_idev+0x102/0x170
[ 4875.392071][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4875.392071][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4875.392071][   T73]      netlink_rcv_skb+0x130/0x360
[ 4875.392071][   T73]      netlink_unicast+0x449/0x710
[ 4875.392071][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4875.392071][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4875.392071][   T73]      ___sys_sendmsg+0xee/0x170
[ 4875.392071][   T73]      __sys_sendmsg+0xcd/0x170
[ 4875.392071][   T73]      do_syscall_64+0xc6/0x1e0
[ 4875.392071][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4875.392071][   T73] 
[ 4875.393795][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4875.393795][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4875.393795][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4875.393795][   T73]      ipv6_find_idev+0x102/0x170
[ 4875.393795][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4875.393795][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4875.393795][   T73]      netlink_rcv_skb+0x130/0x360
[ 4875.393795][   T73]      netlink_unicast+0x449/0x710
[ 4875.393795][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4875.393795][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4875.393795][   T73]      ___sys_sendmsg+0xee/0x170
[ 4875.393795][   T73]      __sys_sendmsg+0xcd/0x170
[ 4875.393795][   T73]      do_syscall_64+0xc6/0x1e0
[ 4875.393795][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4875.393795][   T73] 
[ 4875.395694][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4875.395993][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4875.395993][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4875.395993][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4875.395993][   T73]      fib6_nh_init+0xa22/0x1580
[ 4875.395993][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4875.395993][   T73]      ip6_route_add+0x1c/0x140
[ 4875.395993][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4875.395993][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4875.395993][   T73]      netlink_rcv_skb+0x130/0x360
[ 4875.395993][   T73]      netlink_unicast+0x449/0x710
[ 4875.395993][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4875.395993][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4875.395993][   T73]      ___sys_sendmsg+0xee/0x170
[ 4875.395993][   T73]      __sys_sendmsg+0xcd/0x170
[ 4875.395993][   T73]      do_syscall_64+0xc6/0x1e0
[ 4875.395993][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4875.395993][   T73] 
[ 4875.398812][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4875.398812][   T73]      dst_init+0x84/0x4a0
[ 4875.398812][   T73]      dst_alloc+0x97/0x150
[ 4875.398812][   T73]      ip6_dst_alloc+0x23/0x90
[ 4875.398812][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4875.398812][   T73]      ip6_pol_route+0x56f/0x840
[ 4875.398812][   T73]      fib6_rule_lookup+0x456/0x630
[ 4875.398812][   T73]      ip6_route_input+0x59c/0xa50
[ 4875.398812][   T73]      ipv6_rcv+0x397/0x810
[ 4875.398812][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4875.398812][   T73]      process_backlog+0x101/0x620
[ 4875.398812][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4875.398812][   T73]      net_rx_action+0x495/0xbe0
[ 4875.398812][   T73]      __do_softirq+0x1b5/0x7f6
[ 4875.398812][   T73] 
[ 4875.400899][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4875.400899][   T73]      netdev_get_by_index+0x5e/0x80
[ 4875.400899][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4875.400899][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4875.400899][   T73]      ip6_route_add+0x1c/0x140
[ 4875.400899][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4875.400899][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4875.400899][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4875.400899][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4875.400899][   T73]      netlink_rcv_skb+0x130/0x360
[ 4875.400899][   T73]      netlink_unicast+0x449/0x710
[ 4875.400899][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4875.400899][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4875.400899][   T73]      ___sys_sendmsg+0xee/0x170
[ 4875.400899][   T73]      __sys_sendmsg+0xcd/0x170
[ 4875.400899][   T73]      do_syscall_64+0xc6/0x1e0
[ 4875.400899][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4875.400899][   T73] 
[ 4875.403419][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4875.403419][   T73]      netdev_get_by_index+0x5e/0x80
[ 4875.403419][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4875.403419][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4875.403419][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4875.403419][   T73]      ipv6_add_addr+0x411/0x2000
[ 4875.403419][   T73]      inet6_addr_add+0x30e/0xa40
[ 4875.403419][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4875.403419][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4875.403419][   T73]      netlink_rcv_skb+0x130/0x360
[ 4875.403419][   T73]      netlink_unicast+0x449/0x710
[ 4875.403419][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4875.403419][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4875.403419][   T73]      ___sys_sendmsg+0xee/0x170
[ 4875.403419][   T73]      __sys_sendmsg+0xcd/0x170
[ 4875.403419][   T73]      do_syscall_64+0xc6/0x1e0
[ 4875.403419][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4875.403419][   T73] 
[ 4875.405940][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4875.405940][   T73]      netdev_get_by_index+0x5e/0x80
[ 4875.405940][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4875.405940][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4875.405940][   T73]      ip6_route_add+0x1c/0x140
[ 4875.405940][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4875.405940][   T73]      addrconf_add_dev+0xe2/0x170
[ 4875.405940][   T73]      inet6_addr_add+0x12f/0xa40
[ 4875.405940][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4875.405940][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4875.405940][   T73]      netlink_rcv_skb+0x130/0x360
[ 4875.405940][   T73]      netlink_unicast+0x449/0x710
[ 4875.405940][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4875.405940][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4875.405940][   T73]      ___sys_sendmsg+0xee/0x170
[ 4875.405940][   T73]      __sys_sendmsg+0xcd/0x170
[ 4875.405940][   T73]      do_syscall_64+0xc6/0x1e0
[ 4875.405940][   T73] 
[ 4875.408333][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4875.408333][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4875.408333][   T73]      ipv6_find_idev+0x102/0x170
[ 4875.408333][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4875.408333][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4875.408333][   T73]      netlink_rcv_skb+0x130/0x360
[ 4875.408333][   T73]      netlink_unicast+0x449/0x710
[ 4875.408333][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4875.408333][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4875.408333][   T73]      ___sys_sendmsg+0xee/0x170
[ 4875.408333][   T73]      __sys_sendmsg+0xcd/0x170
[ 4875.408333][   T73]      do_syscall_64+0xc6/0x1e0
[ 4875.408333][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4875.408333][   T73] 
[ 4875.410302][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4875.410302][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4875.410302][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4875.410302][   T73]      ipv6_find_idev+0x102/0x170
[ 4875.410302][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4875.410302][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4875.410302][   T73]      netlink_rcv_skb+0x130/0x360
[ 4875.410302][   T73]      netlink_unicast+0x449/0x710
[ 4875.410302][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4875.410302][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4875.410302][   T73]      ___sys_sendmsg+0xee/0x170
[ 4875.410302][   T73]      __sys_sendmsg+0xcd/0x170
[ 4875.410302][   T73]      do_syscall_64+0xc6/0x1e0
[ 4875.410302][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4875.410302][   T73] 
[ 4875.412479][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4875.413217][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4875.413217][   T73]      netdev_get_by_index+0x5e/0x80
[ 4875.413217][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4875.413217][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4875.413217][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4875.413217][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4875.413217][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4875.413217][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4875.413217][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4875.413217][   T73]      addrconf_dad_begin+0x310/0x670
[ 4875.413217][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4875.413217][   T73]      process_one_work+0x84d/0x18a0
[ 4875.413217][   T73]      worker_thread+0x587/0xd30
[ 4875.413217][   T73]      kthread+0x28a/0x350
[ 4875.413217][   T73]      ret_from_fork+0x31/0x70
[ 4875.413217][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4875.413217][   T73] 
[ 4875.415368][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4875.415368][   T73]      netdev_get_by_index+0x5e/0x80
[ 4875.415368][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4875.415368][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4875.415368][   T73]      ip6_route_add+0x1c/0x140
[ 4875.415368][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4875.415368][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4875.415368][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4875.415368][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4875.415368][   T73]      netlink_rcv_skb+0x130/0x360
[ 4875.415368][   T73]      netlink_unicast+0x449/0x710
[ 4875.415368][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4875.415368][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4875.415368][   T73]      ___sys_sendmsg+0xee/0x170
[ 4875.415368][   T73]      __sys_sendmsg+0xcd/0x170
[ 4875.415368][   T73]      do_syscall_64+0xc6/0x1e0
[ 4875.415368][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4875.415368][   T73] 
[ 4875.417743][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4875.417743][   T73]      netdev_get_by_index+0x5e/0x80
[ 4875.417743][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4875.417743][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4875.417743][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4875.417743][   T73]      ipv6_add_addr+0x411/0x2000
[ 4875.417743][   T73]      inet6_addr_add+0x30e/0xa40
[ 4875.417743][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4875.417743][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4875.417743][   T73]      netlink_rcv_skb+0x130/0x360
[ 4875.417743][   T73]      netlink_unicast+0x449/0x710
[ 4875.417743][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4875.417743][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4875.417743][   T73]      ___sys_sendmsg+0xee/0x170
[ 4875.417743][   T73]      __sys_sendmsg+0xcd/0x170
[ 4875.417743][   T73]      do_syscall_64+0xc6/0x1e0
[ 4875.417743][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4875.417743][   T73] 
[ 4875.420255][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4875.420255][   T73]      netdev_get_by_index+0x5e/0x80
[ 4875.420255][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4875.420255][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4875.420255][   T73]      ip6_route_add+0x1c/0x140
[ 4875.420255][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4875.420255][   T73]      addrconf_add_dev+0xe2/0x170
[ 4875.420255][   T73]      inet6_addr_add+0x12f/0xa40
[ 4875.420255][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4875.420255][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4875.420255][   T73]      netlink_rcv_skb+0x130/0x360
[ 4875.420255][   T73]      netlink_unicast+0x449/0x710
[ 4875.420255][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4875.420255][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4875.420255][   T73]      ___sys_sendmsg+0xee/0x170
[ 4875.420255][   T73]      __sys_sendmsg+0xcd/0x170
[ 4875.420255][   T73]      do_syscall_64+0xc6/0x1e0
[ 4875.420255][   T73] 
[ 4875.424858][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4875.424858][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4875.424858][   T73]      ipv6_find_idev+0x102/0x170
[ 4875.424858][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4875.424858][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4875.424858][   T73]      netlink_rcv_skb+0x130/0x360
[ 4875.424858][   T73]      netlink_unicast+0x449/0x710
[ 4875.424858][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4875.424858][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4875.424858][   T73]      ___sys_sendmsg+0xee/0x170
[ 4875.424858][   T73]      __sys_sendmsg+0xcd/0x170
[ 4875.424858][   T73]      do_syscall_64+0xc6/0x1e0
[ 4875.424858][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4875.424858][   T73] 
[ 4875.426852][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4875.426852][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4875.426852][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4875.426852][   T73]      ipv6_find_idev+0x102/0x170
[ 4875.426852][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4875.426852][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4875.426852][   T73]      netlink_rcv_skb+0x130/0x360
[ 4875.426852][   T73]      netlink_unicast+0x449/0x710
[ 4875.426852][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4875.426852][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4875.426852][   T73]      ___sys_sendmsg+0xee/0x170
[ 4875.426852][   T73]      __sys_sendmsg+0xcd/0x170
[ 4875.426852][   T73]      do_syscall_64+0xc6/0x1e0
[ 4875.426852][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4875.426852][   T73] 
[ 4885.671802][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4885.672350][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4885.672350][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4885.672350][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4885.672350][   T73]      fib6_nh_init+0xa22/0x1580
[ 4885.672350][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4885.672350][   T73]      ip6_route_add+0x1c/0x140
[ 4885.672350][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4885.672350][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4885.672350][   T73]      netlink_rcv_skb+0x130/0x360
[ 4885.672350][   T73]      netlink_unicast+0x449/0x710
[ 4885.672350][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4885.672350][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4885.672350][   T73]      ___sys_sendmsg+0xee/0x170
[ 4885.672350][   T73]      __sys_sendmsg+0xcd/0x170
[ 4885.672350][   T73]      do_syscall_64+0xc6/0x1e0
[ 4885.672350][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4885.672350][   T73] 
[ 4885.674486][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4885.674486][   T73]      dst_init+0x84/0x4a0
[ 4885.674486][   T73]      dst_alloc+0x97/0x150
[ 4885.674486][   T73]      ip6_dst_alloc+0x23/0x90
[ 4885.674486][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4885.674486][   T73]      ip6_pol_route+0x56f/0x840
[ 4885.674486][   T73]      fib6_rule_lookup+0x456/0x630
[ 4885.674486][   T73]      ip6_route_input+0x59c/0xa50
[ 4885.674486][   T73]      ipv6_rcv+0x397/0x810
[ 4885.674486][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4885.674486][   T73]      process_backlog+0x101/0x620
[ 4885.674486][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4885.674486][   T73]      net_rx_action+0x495/0xbe0
[ 4885.674486][   T73]      __do_softirq+0x1b5/0x7f6
[ 4885.674486][   T73] 
[ 4885.676325][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4885.676325][   T73]      netdev_get_by_index+0x5e/0x80
[ 4885.676325][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4885.676325][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4885.676325][   T73]      ip6_route_add+0x1c/0x140
[ 4885.676325][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4885.676325][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4885.676325][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4885.676325][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4885.676325][   T73]      netlink_rcv_skb+0x130/0x360
[ 4885.676325][   T73]      netlink_unicast+0x449/0x710
[ 4885.676325][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4885.676325][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4885.676325][   T73]      ___sys_sendmsg+0xee/0x170
[ 4885.676325][   T73]      __sys_sendmsg+0xcd/0x170
[ 4885.676325][   T73]      do_syscall_64+0xc6/0x1e0
[ 4885.676325][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4885.676325][   T73] 
[ 4885.678578][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4885.678578][   T73]      netdev_get_by_index+0x5e/0x80
[ 4885.678578][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4885.678578][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4885.678578][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4885.678578][   T73]      ipv6_add_addr+0x411/0x2000
[ 4885.678578][   T73]      inet6_addr_add+0x30e/0xa40
[ 4885.678578][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4885.678578][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4885.678578][   T73]      netlink_rcv_skb+0x130/0x360
[ 4885.678578][   T73]      netlink_unicast+0x449/0x710
[ 4885.678578][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4885.678578][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4885.678578][   T73]      ___sys_sendmsg+0xee/0x170
[ 4885.678578][   T73]      __sys_sendmsg+0xcd/0x170
[ 4885.678578][   T73]      do_syscall_64+0xc6/0x1e0
[ 4885.678578][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4885.678578][   T73] 
[ 4885.680812][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4885.680812][   T73]      netdev_get_by_index+0x5e/0x80
[ 4885.680812][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4885.680812][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4885.680812][   T73]      ip6_route_add+0x1c/0x140
[ 4885.680812][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4885.680812][   T73]      addrconf_add_dev+0xe2/0x170
[ 4885.680812][   T73]      inet6_addr_add+0x12f/0xa40
[ 4885.680812][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4885.680812][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4885.680812][   T73]      netlink_rcv_skb+0x130/0x360
[ 4885.680812][   T73]      netlink_unicast+0x449/0x710
[ 4885.680812][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4885.680812][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4885.680812][   T73]      ___sys_sendmsg+0xee/0x170
[ 4885.680812][   T73]      __sys_sendmsg+0xcd/0x170
[ 4885.680812][   T73]      do_syscall_64+0xc6/0x1e0
[ 4885.680812][   T73] 
[ 4885.683131][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4885.683131][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4885.683131][   T73]      ipv6_find_idev+0x102/0x170
[ 4885.683131][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4885.683131][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4885.683131][   T73]      netlink_rcv_skb+0x130/0x360
[ 4885.683131][   T73]      netlink_unicast+0x449/0x710
[ 4885.683131][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4885.683131][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4885.683131][   T73]      ___sys_sendmsg+0xee/0x170
[ 4885.683131][   T73]      __sys_sendmsg+0xcd/0x170
[ 4885.683131][   T73]      do_syscall_64+0xc6/0x1e0
[ 4885.683131][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4885.683131][   T73] 
[ 4885.684864][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4885.684864][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4885.684864][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4885.684864][   T73]      ipv6_find_idev+0x102/0x170
[ 4885.684864][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4885.684864][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4885.684864][   T73]      netlink_rcv_skb+0x130/0x360
[ 4885.684864][   T73]      netlink_unicast+0x449/0x710
[ 4885.684864][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4885.684864][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4885.684864][   T73]      ___sys_sendmsg+0xee/0x170
[ 4885.684864][   T73]      __sys_sendmsg+0xcd/0x170
[ 4885.684864][   T73]      do_syscall_64+0xc6/0x1e0
[ 4885.684864][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4885.684864][   T73] 
[ 4885.686769][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4885.687081][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4885.687081][   T73]      netdev_get_by_index+0x5e/0x80
[ 4885.687081][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4885.687081][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4885.687081][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4885.687081][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4885.687081][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4885.687081][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4885.687081][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4885.687081][   T73]      addrconf_dad_begin+0x310/0x670
[ 4885.687081][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4885.687081][   T73]      process_one_work+0x84d/0x18a0
[ 4885.687081][   T73]      worker_thread+0x587/0xd30
[ 4885.687081][   T73]      kthread+0x28a/0x350
[ 4885.687081][   T73]      ret_from_fork+0x31/0x70
[ 4885.687081][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4885.687081][   T73] 
[ 4885.689243][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4885.689243][   T73]      netdev_get_by_index+0x5e/0x80
[ 4885.689243][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4885.689243][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4885.689243][   T73]      ip6_route_add+0x1c/0x140
[ 4885.689243][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4885.689243][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4885.689243][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4885.689243][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4885.689243][   T73]      netlink_rcv_skb+0x130/0x360
[ 4885.689243][   T73]      netlink_unicast+0x449/0x710
[ 4885.689243][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4885.689243][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4885.689243][   T73]      ___sys_sendmsg+0xee/0x170
[ 4885.689243][   T73]      __sys_sendmsg+0xcd/0x170
[ 4885.689243][   T73]      do_syscall_64+0xc6/0x1e0
[ 4885.689243][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4885.689243][   T73] 
[ 4885.691477][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4885.691477][   T73]      netdev_get_by_index+0x5e/0x80
[ 4885.691477][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4885.691477][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4885.691477][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4885.691477][   T73]      ipv6_add_addr+0x411/0x2000
[ 4885.691477][   T73]      inet6_addr_add+0x30e/0xa40
[ 4885.691477][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4885.691477][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4885.691477][   T73]      netlink_rcv_skb+0x130/0x360
[ 4885.691477][   T73]      netlink_unicast+0x449/0x710
[ 4885.691477][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4885.691477][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4885.691477][   T73]      ___sys_sendmsg+0xee/0x170
[ 4885.691477][   T73]      __sys_sendmsg+0xcd/0x170
[ 4885.691477][   T73]      do_syscall_64+0xc6/0x1e0
[ 4885.691477][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4885.691477][   T73] 
[ 4885.693788][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4885.693788][   T73]      netdev_get_by_index+0x5e/0x80
[ 4885.693788][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4885.693788][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4885.693788][   T73]      ip6_route_add+0x1c/0x140
[ 4885.693788][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4885.693788][   T73]      addrconf_add_dev+0xe2/0x170
[ 4885.693788][   T73]      inet6_addr_add+0x12f/0xa40
[ 4885.693788][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4885.693788][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4885.693788][   T73]      netlink_rcv_skb+0x130/0x360
[ 4885.693788][   T73]      netlink_unicast+0x449/0x710
[ 4885.693788][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4885.693788][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4885.693788][   T73]      ___sys_sendmsg+0xee/0x170
[ 4885.693788][   T73]      __sys_sendmsg+0xcd/0x170
[ 4885.693788][   T73]      do_syscall_64+0xc6/0x1e0
[ 4885.693788][   T73] 
[ 4885.696022][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4885.696022][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4885.696022][   T73]      ipv6_find_idev+0x102/0x170
[ 4885.696022][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4885.696022][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4885.696022][   T73]      netlink_rcv_skb+0x130/0x360
[ 4885.696022][   T73]      netlink_unicast+0x449/0x710
[ 4885.696022][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4885.696022][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4885.696022][   T73]      ___sys_sendmsg+0xee/0x170
[ 4885.696022][   T73]      __sys_sendmsg+0xcd/0x170
[ 4885.696022][   T73]      do_syscall_64+0xc6/0x1e0
[ 4885.696022][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4885.696022][   T73] 
[ 4885.697750][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4885.697750][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4885.697750][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4885.697750][   T73]      ipv6_find_idev+0x102/0x170
[ 4885.697750][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4885.697750][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4885.697750][   T73]      netlink_rcv_skb+0x130/0x360
[ 4885.697750][   T73]      netlink_unicast+0x449/0x710
[ 4885.697750][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4885.697750][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4885.697750][   T73]      ___sys_sendmsg+0xee/0x170
[ 4885.697750][   T73]      __sys_sendmsg+0xcd/0x170
[ 4885.697750][   T73]      do_syscall_64+0xc6/0x1e0
[ 4885.697750][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4885.697750][   T73] 
[ 4885.699650][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4885.699949][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4885.699949][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4885.699949][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4885.699949][   T73]      fib6_nh_init+0xa22/0x1580
[ 4885.699949][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4885.699949][   T73]      ip6_route_add+0x1c/0x140
[ 4885.699949][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4885.699949][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4885.699949][   T73]      netlink_rcv_skb+0x130/0x360
[ 4885.699949][   T73]      netlink_unicast+0x449/0x710
[ 4885.699949][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4885.699949][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4885.699949][   T73]      ___sys_sendmsg+0xee/0x170
[ 4885.699949][   T73]      __sys_sendmsg+0xcd/0x170
[ 4885.699949][   T73]      do_syscall_64+0xc6/0x1e0
[ 4885.699949][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4885.699949][   T73] 
[ 4885.702280][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4885.702280][   T73]      dst_init+0x84/0x4a0
[ 4885.702280][   T73]      dst_alloc+0x97/0x150
[ 4885.702280][   T73]      ip6_dst_alloc+0x23/0x90
[ 4885.702280][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4885.702280][   T73]      ip6_pol_route+0x56f/0x840
[ 4885.702280][   T73]      fib6_rule_lookup+0x456/0x630
[ 4885.702280][   T73]      ip6_route_input+0x59c/0xa50
[ 4885.702280][   T73]      ipv6_rcv+0x397/0x810
[ 4885.702280][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4885.702280][   T73]      process_backlog+0x101/0x620
[ 4885.702280][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4885.702280][   T73]      net_rx_action+0x495/0xbe0
[ 4885.702280][   T73]      __do_softirq+0x1b5/0x7f6
[ 4885.702280][   T73] 
[ 4885.704377][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4885.704377][   T73]      netdev_get_by_index+0x5e/0x80
[ 4885.704377][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4885.704377][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4885.704377][   T73]      ip6_route_add+0x1c/0x140
[ 4885.704377][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4885.704377][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4885.704377][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4885.704377][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4885.704377][   T73]      netlink_rcv_skb+0x130/0x360
[ 4885.704377][   T73]      netlink_unicast+0x449/0x710
[ 4885.704377][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4885.704377][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4885.704377][   T73]      ___sys_sendmsg+0xee/0x170
[ 4885.704377][   T73]      __sys_sendmsg+0xcd/0x170
[ 4885.704377][   T73]      do_syscall_64+0xc6/0x1e0
[ 4885.704377][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4885.704377][   T73] 
[ 4885.706866][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4885.706866][   T73]      netdev_get_by_index+0x5e/0x80
[ 4885.706866][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4885.706866][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4885.706866][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4885.706866][   T73]      ipv6_add_addr+0x411/0x2000
[ 4885.706866][   T73]      inet6_addr_add+0x30e/0xa40
[ 4885.706866][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4885.706866][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4885.706866][   T73]      netlink_rcv_skb+0x130/0x360
[ 4885.706866][   T73]      netlink_unicast+0x449/0x710
[ 4885.706866][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4885.706866][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4885.706866][   T73]      ___sys_sendmsg+0xee/0x170
[ 4885.706866][   T73]      __sys_sendmsg+0xcd/0x170
[ 4885.706866][   T73]      do_syscall_64+0xc6/0x1e0
[ 4885.706866][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4885.706866][   T73] 
[ 4885.709371][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4885.709371][   T73]      netdev_get_by_index+0x5e/0x80
[ 4885.709371][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4885.709371][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4885.709371][   T73]      ip6_route_add+0x1c/0x140
[ 4885.709371][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4885.709371][   T73]      addrconf_add_dev+0xe2/0x170
[ 4885.709371][   T73]      inet6_addr_add+0x12f/0xa40
[ 4885.709371][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4885.709371][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4885.709371][   T73]      netlink_rcv_skb+0x130/0x360
[ 4885.709371][   T73]      netlink_unicast+0x449/0x710
[ 4885.709371][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4885.709371][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4885.709371][   T73]      ___sys_sendmsg+0xee/0x170
[ 4885.709371][   T73]      __sys_sendmsg+0xcd/0x170
[ 4885.709371][   T73]      do_syscall_64+0xc6/0x1e0
[ 4885.709371][   T73] 
[ 4885.711775][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4885.711775][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4885.711775][   T73]      ipv6_find_idev+0x102/0x170
[ 4885.711775][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4885.711775][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4885.711775][   T73]      netlink_rcv_skb+0x130/0x360
[ 4885.711775][   T73]      netlink_unicast+0x449/0x710
[ 4885.711775][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4885.711775][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4885.711775][   T73]      ___sys_sendmsg+0xee/0x170
[ 4885.711775][   T73]      __sys_sendmsg+0xcd/0x170
[ 4885.711775][   T73]      do_syscall_64+0xc6/0x1e0
[ 4885.711775][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4885.711775][   T73] 
[ 4885.713769][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4885.713769][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4885.713769][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4885.713769][   T73]      ipv6_find_idev+0x102/0x170
[ 4885.713769][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4885.713769][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4885.713769][   T73]      netlink_rcv_skb+0x130/0x360
[ 4885.713769][   T73]      netlink_unicast+0x449/0x710
[ 4885.713769][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4885.713769][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4885.713769][   T73]      ___sys_sendmsg+0xee/0x170
[ 4885.713769][   T73]      __sys_sendmsg+0xcd/0x170
[ 4885.713769][   T73]      do_syscall_64+0xc6/0x1e0
[ 4885.713769][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4885.713769][   T73] 
[ 4885.715937][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4885.716247][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4885.716247][   T73]      netdev_get_by_index+0x5e/0x80
[ 4885.716247][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4885.716247][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4885.716247][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4885.716247][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4885.716247][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4885.716247][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4885.716247][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4885.716247][   T73]      addrconf_dad_begin+0x310/0x670
[ 4885.716247][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4885.716247][   T73]      process_one_work+0x84d/0x18a0
[ 4885.716247][   T73]      worker_thread+0x587/0xd30
[ 4885.716247][   T73]      kthread+0x28a/0x350
[ 4885.716247][   T73]      ret_from_fork+0x31/0x70
[ 4885.716247][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4885.716247][   T73] 
[ 4885.718648][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4885.718648][   T73]      netdev_get_by_index+0x5e/0x80
[ 4885.718648][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4885.718648][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4885.718648][   T73]      ip6_route_add+0x1c/0x140
[ 4885.718648][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4885.718648][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4885.718648][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4885.718648][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4885.718648][   T73]      netlink_rcv_skb+0x130/0x360
[ 4885.718648][   T73]      netlink_unicast+0x449/0x710
[ 4885.718648][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4885.718648][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4885.718648][   T73]      ___sys_sendmsg+0xee/0x170
[ 4885.718648][   T73]      __sys_sendmsg+0xcd/0x170
[ 4885.718648][   T73]      do_syscall_64+0xc6/0x1e0
[ 4885.718648][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4885.718648][   T73] 
[ 4885.721145][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4885.721145][   T73]      netdev_get_by_index+0x5e/0x80
[ 4885.721145][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4885.721145][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4885.721145][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4885.721145][   T73]      ipv6_add_addr+0x411/0x2000
[ 4885.721145][   T73]      inet6_addr_add+0x30e/0xa40
[ 4885.721145][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4885.721145][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4885.721145][   T73]      netlink_rcv_skb+0x130/0x360
[ 4885.721145][   T73]      netlink_unicast+0x449/0x710
[ 4885.721145][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4885.721145][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4885.721145][   T73]      ___sys_sendmsg+0xee/0x170
[ 4885.721145][   T73]      __sys_sendmsg+0xcd/0x170
[ 4885.721145][   T73]      do_syscall_64+0xc6/0x1e0
[ 4885.721145][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4885.721145][   T73] 
[ 4885.723614][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4885.723614][   T73]      netdev_get_by_index+0x5e/0x80
[ 4885.723614][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4885.723614][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4885.723614][   T73]      ip6_route_add+0x1c/0x140
[ 4885.723614][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4885.723614][   T73]      addrconf_add_dev+0xe2/0x170
[ 4885.723614][   T73]      inet6_addr_add+0x12f/0xa40
[ 4885.723614][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4885.723614][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4885.723614][   T73]      netlink_rcv_skb+0x130/0x360
[ 4885.723614][   T73]      netlink_unicast+0x449/0x710
[ 4885.723614][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4885.723614][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4885.723614][   T73]      ___sys_sendmsg+0xee/0x170
[ 4885.723614][   T73]      __sys_sendmsg+0xcd/0x170
[ 4885.723614][   T73]      do_syscall_64+0xc6/0x1e0
[ 4885.723614][   T73] 
[ 4885.726123][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4885.726123][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4885.726123][   T73]      ipv6_find_idev+0x102/0x170
[ 4885.726123][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4885.726123][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4885.726123][   T73]      netlink_rcv_skb+0x130/0x360
[ 4885.726123][   T73]      netlink_unicast+0x449/0x710
[ 4885.726123][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4885.726123][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4885.726123][   T73]      ___sys_sendmsg+0xee/0x170
[ 4885.726123][   T73]      __sys_sendmsg+0xcd/0x170
[ 4885.726123][   T73]      do_syscall_64+0xc6/0x1e0
[ 4885.726123][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4885.726123][   T73] 
[ 4885.728032][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4885.728032][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4885.728032][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4885.728032][   T73]      ipv6_find_idev+0x102/0x170
[ 4885.728032][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4885.728032][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4885.728032][   T73]      netlink_rcv_skb+0x130/0x360
[ 4885.728032][   T73]      netlink_unicast+0x449/0x710
[ 4885.728032][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4885.728032][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4885.728032][   T73]      ___sys_sendmsg+0xee/0x170
[ 4885.728032][   T73]      __sys_sendmsg+0xcd/0x170
[ 4885.728032][   T73]      do_syscall_64+0xc6/0x1e0
[ 4885.728032][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4885.728032][   T73] 
[ 4895.735782][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4895.736313][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4895.736313][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4895.736313][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4895.736313][   T73]      fib6_nh_init+0xa22/0x1580
[ 4895.736313][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4895.736313][   T73]      ip6_route_add+0x1c/0x140
[ 4895.736313][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4895.736313][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4895.736313][   T73]      netlink_rcv_skb+0x130/0x360
[ 4895.736313][   T73]      netlink_unicast+0x449/0x710
[ 4895.736313][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4895.736313][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4895.736313][   T73]      ___sys_sendmsg+0xee/0x170
[ 4895.736313][   T73]      __sys_sendmsg+0xcd/0x170
[ 4895.736313][   T73]      do_syscall_64+0xc6/0x1e0
[ 4895.736313][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4895.736313][   T73] 
[ 4895.738449][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4895.738449][   T73]      dst_init+0x84/0x4a0
[ 4895.738449][   T73]      dst_alloc+0x97/0x150
[ 4895.738449][   T73]      ip6_dst_alloc+0x23/0x90
[ 4895.738449][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4895.738449][   T73]      ip6_pol_route+0x56f/0x840
[ 4895.738449][   T73]      fib6_rule_lookup+0x456/0x630
[ 4895.738449][   T73]      ip6_route_input+0x59c/0xa50
[ 4895.738449][   T73]      ipv6_rcv+0x397/0x810
[ 4895.738449][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4895.738449][   T73]      process_backlog+0x101/0x620
[ 4895.738449][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4895.738449][   T73]      net_rx_action+0x495/0xbe0
[ 4895.738449][   T73]      __do_softirq+0x1b5/0x7f6
[ 4895.738449][   T73] 
[ 4895.740288][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4895.740288][   T73]      netdev_get_by_index+0x5e/0x80
[ 4895.740288][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4895.740288][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4895.740288][   T73]      ip6_route_add+0x1c/0x140
[ 4895.740288][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4895.740288][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4895.740288][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4895.740288][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4895.740288][   T73]      netlink_rcv_skb+0x130/0x360
[ 4895.740288][   T73]      netlink_unicast+0x449/0x710
[ 4895.740288][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4895.740288][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4895.740288][   T73]      ___sys_sendmsg+0xee/0x170
[ 4895.740288][   T73]      __sys_sendmsg+0xcd/0x170
[ 4895.740288][   T73]      do_syscall_64+0xc6/0x1e0
[ 4895.740288][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4895.740288][   T73] 
[ 4895.742577][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4895.742577][   T73]      netdev_get_by_index+0x5e/0x80
[ 4895.742577][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4895.742577][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4895.742577][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4895.742577][   T73]      ipv6_add_addr+0x411/0x2000
[ 4895.742577][   T73]      inet6_addr_add+0x30e/0xa40
[ 4895.742577][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4895.742577][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4895.742577][   T73]      netlink_rcv_skb+0x130/0x360
[ 4895.742577][   T73]      netlink_unicast+0x449/0x710
[ 4895.742577][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4895.742577][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4895.742577][   T73]      ___sys_sendmsg+0xee/0x170
[ 4895.742577][   T73]      __sys_sendmsg+0xcd/0x170
[ 4895.742577][   T73]      do_syscall_64+0xc6/0x1e0
[ 4895.742577][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4895.742577][   T73] 
[ 4895.744825][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4895.744825][   T73]      netdev_get_by_index+0x5e/0x80
[ 4895.744825][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4895.744825][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4895.744825][   T73]      ip6_route_add+0x1c/0x140
[ 4895.744825][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4895.744825][   T73]      addrconf_add_dev+0xe2/0x170
[ 4895.744825][   T73]      inet6_addr_add+0x12f/0xa40
[ 4895.744825][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4895.744825][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4895.744825][   T73]      netlink_rcv_skb+0x130/0x360
[ 4895.744825][   T73]      netlink_unicast+0x449/0x710
[ 4895.744825][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4895.744825][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4895.744825][   T73]      ___sys_sendmsg+0xee/0x170
[ 4895.744825][   T73]      __sys_sendmsg+0xcd/0x170
[ 4895.744825][   T73]      do_syscall_64+0xc6/0x1e0
[ 4895.744825][   T73] 
[ 4895.747022][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4895.747022][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4895.747022][   T73]      ipv6_find_idev+0x102/0x170
[ 4895.747022][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4895.747022][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4895.747022][   T73]      netlink_rcv_skb+0x130/0x360
[ 4895.747022][   T73]      netlink_unicast+0x449/0x710
[ 4895.747022][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4895.747022][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4895.747022][   T73]      ___sys_sendmsg+0xee/0x170
[ 4895.747022][   T73]      __sys_sendmsg+0xcd/0x170
[ 4895.747022][   T73]      do_syscall_64+0xc6/0x1e0
[ 4895.747022][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4895.747022][   T73] 
[ 4895.748750][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4895.748750][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4895.748750][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4895.748750][   T73]      ipv6_find_idev+0x102/0x170
[ 4895.748750][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4895.748750][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4895.748750][   T73]      netlink_rcv_skb+0x130/0x360
[ 4895.748750][   T73]      netlink_unicast+0x449/0x710
[ 4895.748750][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4895.748750][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4895.748750][   T73]      ___sys_sendmsg+0xee/0x170
[ 4895.748750][   T73]      __sys_sendmsg+0xcd/0x170
[ 4895.748750][   T73]      do_syscall_64+0xc6/0x1e0
[ 4895.748750][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4895.748750][   T73] 
[ 4895.750660][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4895.750962][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4895.750962][   T73]      netdev_get_by_index+0x5e/0x80
[ 4895.750962][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4895.750962][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4895.750962][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4895.750962][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4895.750962][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4895.750962][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4895.750962][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4895.750962][   T73]      addrconf_dad_begin+0x310/0x670
[ 4895.750962][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4895.750962][   T73]      process_one_work+0x84d/0x18a0
[ 4895.750962][   T73]      worker_thread+0x587/0xd30
[ 4895.750962][   T73]      kthread+0x28a/0x350
[ 4895.750962][   T73]      ret_from_fork+0x31/0x70
[ 4895.750962][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4895.750962][   T73] 
[ 4895.753117][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4895.753117][   T73]      netdev_get_by_index+0x5e/0x80
[ 4895.753117][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4895.753117][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4895.753117][   T73]      ip6_route_add+0x1c/0x140
[ 4895.753117][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4895.753117][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4895.753117][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4895.753117][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4895.753117][   T73]      netlink_rcv_skb+0x130/0x360
[ 4895.753117][   T73]      netlink_unicast+0x449/0x710
[ 4895.753117][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4895.753117][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4895.753117][   T73]      ___sys_sendmsg+0xee/0x170
[ 4895.753117][   T73]      __sys_sendmsg+0xcd/0x170
[ 4895.753117][   T73]      do_syscall_64+0xc6/0x1e0
[ 4895.753117][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4895.753117][   T73] 
[ 4895.755358][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4895.755358][   T73]      netdev_get_by_index+0x5e/0x80
[ 4895.755358][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4895.755358][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4895.755358][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4895.755358][   T73]      ipv6_add_addr+0x411/0x2000
[ 4895.755358][   T73]      inet6_addr_add+0x30e/0xa40
[ 4895.755358][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4895.755358][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4895.755358][   T73]      netlink_rcv_skb+0x130/0x360
[ 4895.755358][   T73]      netlink_unicast+0x449/0x710
[ 4895.755358][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4895.755358][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4895.755358][   T73]      ___sys_sendmsg+0xee/0x170
[ 4895.755358][   T73]      __sys_sendmsg+0xcd/0x170
[ 4895.755358][   T73]      do_syscall_64+0xc6/0x1e0
[ 4895.755358][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4895.755358][   T73] 
[ 4895.757602][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4895.757602][   T73]      netdev_get_by_index+0x5e/0x80
[ 4895.757602][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4895.757602][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4895.757602][   T73]      ip6_route_add+0x1c/0x140
[ 4895.757602][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4895.757602][   T73]      addrconf_add_dev+0xe2/0x170
[ 4895.757602][   T73]      inet6_addr_add+0x12f/0xa40
[ 4895.757602][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4895.757602][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4895.757602][   T73]      netlink_rcv_skb+0x130/0x360
[ 4895.757602][   T73]      netlink_unicast+0x449/0x710
[ 4895.757602][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4895.757602][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4895.757602][   T73]      ___sys_sendmsg+0xee/0x170
[ 4895.757602][   T73]      __sys_sendmsg+0xcd/0x170
[ 4895.757602][   T73]      do_syscall_64+0xc6/0x1e0
[ 4895.757602][   T73] 
[ 4895.759793][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4895.759793][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4895.759793][   T73]      ipv6_find_idev+0x102/0x170
[ 4895.759793][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4895.759793][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4895.759793][   T73]      netlink_rcv_skb+0x130/0x360
[ 4895.759793][   T73]      netlink_unicast+0x449/0x710
[ 4895.759793][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4895.759793][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4895.759793][   T73]      ___sys_sendmsg+0xee/0x170
[ 4895.759793][   T73]      __sys_sendmsg+0xcd/0x170
[ 4895.759793][   T73]      do_syscall_64+0xc6/0x1e0
[ 4895.759793][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4895.759793][   T73] 
[ 4895.761518][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4895.761518][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4895.761518][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4895.761518][   T73]      ipv6_find_idev+0x102/0x170
[ 4895.761518][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4895.761518][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4895.761518][   T73]      netlink_rcv_skb+0x130/0x360
[ 4895.761518][   T73]      netlink_unicast+0x449/0x710
[ 4895.761518][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4895.761518][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4895.761518][   T73]      ___sys_sendmsg+0xee/0x170
[ 4895.761518][   T73]      __sys_sendmsg+0xcd/0x170
[ 4895.761518][   T73]      do_syscall_64+0xc6/0x1e0
[ 4895.761518][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4895.761518][   T73] 
[ 4895.763416][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4895.763714][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4895.763714][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4895.763714][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4895.763714][   T73]      fib6_nh_init+0xa22/0x1580
[ 4895.763714][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4895.763714][   T73]      ip6_route_add+0x1c/0x140
[ 4895.763714][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4895.763714][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4895.763714][   T73]      netlink_rcv_skb+0x130/0x360
[ 4895.763714][   T73]      netlink_unicast+0x449/0x710
[ 4895.763714][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4895.763714][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4895.763714][   T73]      ___sys_sendmsg+0xee/0x170
[ 4895.763714][   T73]      __sys_sendmsg+0xcd/0x170
[ 4895.763714][   T73]      do_syscall_64+0xc6/0x1e0
[ 4895.763714][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4895.763714][   T73] 
[ 4895.766031][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4895.766031][   T73]      dst_init+0x84/0x4a0
[ 4895.766031][   T73]      dst_alloc+0x97/0x150
[ 4895.766031][   T73]      ip6_dst_alloc+0x23/0x90
[ 4895.766031][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4895.766031][   T73]      ip6_pol_route+0x56f/0x840
[ 4895.766031][   T73]      fib6_rule_lookup+0x456/0x630
[ 4895.766031][   T73]      ip6_route_input+0x59c/0xa50
[ 4895.766031][   T73]      ipv6_rcv+0x397/0x810
[ 4895.766031][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4895.766031][   T73]      process_backlog+0x101/0x620
[ 4895.766031][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4895.766031][   T73]      net_rx_action+0x495/0xbe0
[ 4895.766031][   T73]      __do_softirq+0x1b5/0x7f6
[ 4895.766031][   T73] 
[ 4895.768046][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4895.768046][   T73]      netdev_get_by_index+0x5e/0x80
[ 4895.768046][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4895.768046][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4895.768046][   T73]      ip6_route_add+0x1c/0x140
[ 4895.768046][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4895.768046][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4895.768046][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4895.768046][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4895.768046][   T73]      netlink_rcv_skb+0x130/0x360
[ 4895.768046][   T73]      netlink_unicast+0x449/0x710
[ 4895.768046][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4895.768046][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4895.768046][   T73]      ___sys_sendmsg+0xee/0x170
[ 4895.768046][   T73]      __sys_sendmsg+0xcd/0x170
[ 4895.768046][   T73]      do_syscall_64+0xc6/0x1e0
[ 4895.768046][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4895.768046][   T73] 
[ 4895.770552][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4895.770552][   T73]      netdev_get_by_index+0x5e/0x80
[ 4895.770552][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4895.770552][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4895.770552][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4895.770552][   T73]      ipv6_add_addr+0x411/0x2000
[ 4895.770552][   T73]      inet6_addr_add+0x30e/0xa40
[ 4895.770552][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4895.770552][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4895.770552][   T73]      netlink_rcv_skb+0x130/0x360
[ 4895.770552][   T73]      netlink_unicast+0x449/0x710
[ 4895.770552][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4895.770552][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4895.770552][   T73]      ___sys_sendmsg+0xee/0x170
[ 4895.770552][   T73]      __sys_sendmsg+0xcd/0x170
[ 4895.770552][   T73]      do_syscall_64+0xc6/0x1e0
[ 4895.770552][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4895.770552][   T73] 
[ 4895.773114][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4895.773114][   T73]      netdev_get_by_index+0x5e/0x80
[ 4895.773114][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4895.773114][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4895.773114][   T73]      ip6_route_add+0x1c/0x140
[ 4895.773114][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4895.773114][   T73]      addrconf_add_dev+0xe2/0x170
[ 4895.773114][   T73]      inet6_addr_add+0x12f/0xa40
[ 4895.773114][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4895.773114][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4895.773114][   T73]      netlink_rcv_skb+0x130/0x360
[ 4895.773114][   T73]      netlink_unicast+0x449/0x710
[ 4895.773114][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4895.773114][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4895.773114][   T73]      ___sys_sendmsg+0xee/0x170
[ 4895.773114][   T73]      __sys_sendmsg+0xcd/0x170
[ 4895.773114][   T73]      do_syscall_64+0xc6/0x1e0
[ 4895.773114][   T73] 
[ 4895.775480][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4895.775480][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4895.775480][   T73]      ipv6_find_idev+0x102/0x170
[ 4895.775480][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4895.775480][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4895.775480][   T73]      netlink_rcv_skb+0x130/0x360
[ 4895.775480][   T73]      netlink_unicast+0x449/0x710
[ 4895.775480][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4895.775480][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4895.775480][   T73]      ___sys_sendmsg+0xee/0x170
[ 4895.775480][   T73]      __sys_sendmsg+0xcd/0x170
[ 4895.775480][   T73]      do_syscall_64+0xc6/0x1e0
[ 4895.775480][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4895.775480][   T73] 
[ 4895.777396][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4895.777396][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4895.777396][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4895.777396][   T73]      ipv6_find_idev+0x102/0x170
[ 4895.777396][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4895.777396][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4895.777396][   T73]      netlink_rcv_skb+0x130/0x360
[ 4895.777396][   T73]      netlink_unicast+0x449/0x710
[ 4895.777396][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4895.777396][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4895.777396][   T73]      ___sys_sendmsg+0xee/0x170
[ 4895.777396][   T73]      __sys_sendmsg+0xcd/0x170
[ 4895.777396][   T73]      do_syscall_64+0xc6/0x1e0
[ 4895.777396][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4895.777396][   T73] 
[ 4895.779536][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4895.780262][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4895.780262][   T73]      netdev_get_by_index+0x5e/0x80
[ 4895.780262][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4895.780262][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4895.780262][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4895.780262][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4895.780262][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4895.780262][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4895.780262][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4895.780262][   T73]      addrconf_dad_begin+0x310/0x670
[ 4895.780262][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4895.780262][   T73]      process_one_work+0x84d/0x18a0
[ 4895.780262][   T73]      worker_thread+0x587/0xd30
[ 4895.780262][   T73]      kthread+0x28a/0x350
[ 4895.780262][   T73]      ret_from_fork+0x31/0x70
[ 4895.780262][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4895.780262][   T73] 
[ 4895.782469][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4895.782469][   T73]      netdev_get_by_index+0x5e/0x80
[ 4895.782469][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4895.782469][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4895.782469][   T73]      ip6_route_add+0x1c/0x140
[ 4895.782469][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4895.782469][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4895.782469][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4895.782469][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4895.782469][   T73]      netlink_rcv_skb+0x130/0x360
[ 4895.782469][   T73]      netlink_unicast+0x449/0x710
[ 4895.782469][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4895.782469][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4895.782469][   T73]      ___sys_sendmsg+0xee/0x170
[ 4895.782469][   T73]      __sys_sendmsg+0xcd/0x170
[ 4895.782469][   T73]      do_syscall_64+0xc6/0x1e0
[ 4895.782469][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4895.782469][   T73] 
[ 4895.784834][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4895.784834][   T73]      netdev_get_by_index+0x5e/0x80
[ 4895.784834][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4895.784834][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4895.784834][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4895.784834][   T73]      ipv6_add_addr+0x411/0x2000
[ 4895.784834][   T73]      inet6_addr_add+0x30e/0xa40
[ 4895.784834][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4895.784834][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4895.784834][   T73]      netlink_rcv_skb+0x130/0x360
[ 4895.784834][   T73]      netlink_unicast+0x449/0x710
[ 4895.784834][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4895.784834][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4895.784834][   T73]      ___sys_sendmsg+0xee/0x170
[ 4895.784834][   T73]      __sys_sendmsg+0xcd/0x170
[ 4895.784834][   T73]      do_syscall_64+0xc6/0x1e0
[ 4895.784834][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4895.784834][   T73] 
[ 4895.787387][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4895.787387][   T73]      netdev_get_by_index+0x5e/0x80
[ 4895.787387][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4895.787387][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4895.787387][   T73]      ip6_route_add+0x1c/0x140
[ 4895.787387][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4895.787387][   T73]      addrconf_add_dev+0xe2/0x170
[ 4895.787387][   T73]      inet6_addr_add+0x12f/0xa40
[ 4895.787387][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4895.787387][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4895.787387][   T73]      netlink_rcv_skb+0x130/0x360
[ 4895.787387][   T73]      netlink_unicast+0x449/0x710
[ 4895.787387][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4895.787387][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4895.787387][   T73]      ___sys_sendmsg+0xee/0x170
[ 4895.787387][   T73]      __sys_sendmsg+0xcd/0x170
[ 4895.787387][   T73]      do_syscall_64+0xc6/0x1e0
[ 4895.787387][   T73] 
[ 4895.789775][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4895.789775][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4895.789775][   T73]      ipv6_find_idev+0x102/0x170
[ 4895.789775][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4895.789775][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4895.789775][   T73]      netlink_rcv_skb+0x130/0x360
[ 4895.789775][   T73]      netlink_unicast+0x449/0x710
[ 4895.789775][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4895.789775][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4895.789775][   T73]      ___sys_sendmsg+0xee/0x170
[ 4895.789775][   T73]      __sys_sendmsg+0xcd/0x170
[ 4895.789775][   T73]      do_syscall_64+0xc6/0x1e0
[ 4895.789775][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4895.789775][   T73] 
[ 4895.791699][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4895.791699][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4895.791699][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4895.791699][   T73]      ipv6_find_idev+0x102/0x170
[ 4895.791699][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4895.791699][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4895.791699][   T73]      netlink_rcv_skb+0x130/0x360
[ 4895.791699][   T73]      netlink_unicast+0x449/0x710
[ 4895.791699][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4895.791699][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4895.791699][   T73]      ___sys_sendmsg+0xee/0x170
[ 4895.791699][   T73]      __sys_sendmsg+0xcd/0x170
[ 4895.791699][   T73]      do_syscall_64+0xc6/0x1e0
[ 4895.791699][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4895.791699][   T73] 
[ 4906.031715][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4906.032223][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4906.032223][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4906.032223][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4906.032223][   T73]      fib6_nh_init+0xa22/0x1580
[ 4906.032223][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4906.032223][   T73]      ip6_route_add+0x1c/0x140
[ 4906.032223][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4906.032223][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4906.032223][   T73]      netlink_rcv_skb+0x130/0x360
[ 4906.032223][   T73]      netlink_unicast+0x449/0x710
[ 4906.032223][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4906.032223][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4906.032223][   T73]      ___sys_sendmsg+0xee/0x170
[ 4906.032223][   T73]      __sys_sendmsg+0xcd/0x170
[ 4906.032223][   T73]      do_syscall_64+0xc6/0x1e0
[ 4906.032223][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4906.032223][   T73] 
[ 4906.034175][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4906.034175][   T73]      dst_init+0x84/0x4a0
[ 4906.034175][   T73]      dst_alloc+0x97/0x150
[ 4906.034175][   T73]      ip6_dst_alloc+0x23/0x90
[ 4906.034175][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4906.034175][   T73]      ip6_pol_route+0x56f/0x840
[ 4906.034175][   T73]      fib6_rule_lookup+0x456/0x630
[ 4906.034175][   T73]      ip6_route_input+0x59c/0xa50
[ 4906.034175][   T73]      ipv6_rcv+0x397/0x810
[ 4906.034175][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4906.034175][   T73]      process_backlog+0x101/0x620
[ 4906.034175][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4906.034175][   T73]      net_rx_action+0x495/0xbe0
[ 4906.034175][   T73]      __do_softirq+0x1b5/0x7f6
[ 4906.034175][   T73] 
[ 4906.035857][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4906.035857][   T73]      netdev_get_by_index+0x5e/0x80
[ 4906.035857][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4906.035857][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4906.035857][   T73]      ip6_route_add+0x1c/0x140
[ 4906.035857][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4906.035857][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4906.035857][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4906.035857][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4906.035857][   T73]      netlink_rcv_skb+0x130/0x360
[ 4906.035857][   T73]      netlink_unicast+0x449/0x710
[ 4906.035857][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4906.035857][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4906.035857][   T73]      ___sys_sendmsg+0xee/0x170
[ 4906.035857][   T73]      __sys_sendmsg+0xcd/0x170
[ 4906.035857][   T73]      do_syscall_64+0xc6/0x1e0
[ 4906.035857][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4906.035857][   T73] 
[ 4906.037925][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4906.037925][   T73]      netdev_get_by_index+0x5e/0x80
[ 4906.037925][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4906.037925][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4906.037925][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4906.037925][   T73]      ipv6_add_addr+0x411/0x2000
[ 4906.037925][   T73]      inet6_addr_add+0x30e/0xa40
[ 4906.037925][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4906.037925][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4906.037925][   T73]      netlink_rcv_skb+0x130/0x360
[ 4906.037925][   T73]      netlink_unicast+0x449/0x710
[ 4906.037925][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4906.037925][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4906.037925][   T73]      ___sys_sendmsg+0xee/0x170
[ 4906.037925][   T73]      __sys_sendmsg+0xcd/0x170
[ 4906.037925][   T73]      do_syscall_64+0xc6/0x1e0
[ 4906.037925][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4906.037925][   T73] 
[ 4906.039987][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4906.039987][   T73]      netdev_get_by_index+0x5e/0x80
[ 4906.039987][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4906.039987][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4906.039987][   T73]      ip6_route_add+0x1c/0x140
[ 4906.039987][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4906.039987][   T73]      addrconf_add_dev+0xe2/0x170
[ 4906.039987][   T73]      inet6_addr_add+0x12f/0xa40
[ 4906.039987][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4906.039987][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4906.039987][   T73]      netlink_rcv_skb+0x130/0x360
[ 4906.039987][   T73]      netlink_unicast+0x449/0x710
[ 4906.039987][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4906.039987][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4906.039987][   T73]      ___sys_sendmsg+0xee/0x170
[ 4906.039987][   T73]      __sys_sendmsg+0xcd/0x170
[ 4906.039987][   T73]      do_syscall_64+0xc6/0x1e0
[ 4906.039987][   T73] 
[ 4906.042009][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4906.042009][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4906.042009][   T73]      ipv6_find_idev+0x102/0x170
[ 4906.042009][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4906.042009][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4906.042009][   T73]      netlink_rcv_skb+0x130/0x360
[ 4906.042009][   T73]      netlink_unicast+0x449/0x710
[ 4906.042009][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4906.042009][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4906.042009][   T73]      ___sys_sendmsg+0xee/0x170
[ 4906.042009][   T73]      __sys_sendmsg+0xcd/0x170
[ 4906.042009][   T73]      do_syscall_64+0xc6/0x1e0
[ 4906.042009][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4906.042009][   T73] 
[ 4906.043590][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4906.043590][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4906.043590][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4906.043590][   T73]      ipv6_find_idev+0x102/0x170
[ 4906.043590][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4906.043590][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4906.043590][   T73]      netlink_rcv_skb+0x130/0x360
[ 4906.043590][   T73]      netlink_unicast+0x449/0x710
[ 4906.043590][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4906.043590][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4906.043590][   T73]      ___sys_sendmsg+0xee/0x170
[ 4906.043590][   T73]      __sys_sendmsg+0xcd/0x170
[ 4906.043590][   T73]      do_syscall_64+0xc6/0x1e0
[ 4906.043590][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4906.043590][   T73] 
[ 4906.045333][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4906.045631][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4906.045631][   T73]      netdev_get_by_index+0x5e/0x80
[ 4906.045631][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4906.045631][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4906.045631][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4906.045631][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4906.045631][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4906.045631][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4906.045631][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4906.045631][   T73]      addrconf_dad_begin+0x310/0x670
[ 4906.045631][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4906.045631][   T73]      process_one_work+0x84d/0x18a0
[ 4906.045631][   T73]      worker_thread+0x587/0xd30
[ 4906.045631][   T73]      kthread+0x28a/0x350
[ 4906.045631][   T73]      ret_from_fork+0x31/0x70
[ 4906.045631][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4906.045631][   T73] 
[ 4906.047685][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4906.047685][   T73]      netdev_get_by_index+0x5e/0x80
[ 4906.047685][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4906.047685][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4906.047685][   T73]      ip6_route_add+0x1c/0x140
[ 4906.047685][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4906.047685][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4906.047685][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4906.047685][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4906.047685][   T73]      netlink_rcv_skb+0x130/0x360
[ 4906.047685][   T73]      netlink_unicast+0x449/0x710
[ 4906.047685][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4906.047685][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4906.047685][   T73]      ___sys_sendmsg+0xee/0x170
[ 4906.047685][   T73]      __sys_sendmsg+0xcd/0x170
[ 4906.047685][   T73]      do_syscall_64+0xc6/0x1e0
[ 4906.047685][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4906.047685][   T73] 
[ 4906.049752][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4906.049752][   T73]      netdev_get_by_index+0x5e/0x80
[ 4906.049752][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4906.049752][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4906.049752][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4906.049752][   T73]      ipv6_add_addr+0x411/0x2000
[ 4906.049752][   T73]      inet6_addr_add+0x30e/0xa40
[ 4906.049752][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4906.049752][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4906.049752][   T73]      netlink_rcv_skb+0x130/0x360
[ 4906.049752][   T73]      netlink_unicast+0x449/0x710
[ 4906.049752][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4906.049752][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4906.049752][   T73]      ___sys_sendmsg+0xee/0x170
[ 4906.049752][   T73]      __sys_sendmsg+0xcd/0x170
[ 4906.049752][   T73]      do_syscall_64+0xc6/0x1e0
[ 4906.049752][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4906.049752][   T73] 
[ 4906.051822][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4906.051822][   T73]      netdev_get_by_index+0x5e/0x80
[ 4906.051822][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4906.051822][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4906.051822][   T73]      ip6_route_add+0x1c/0x140
[ 4906.051822][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4906.051822][   T73]      addrconf_add_dev+0xe2/0x170
[ 4906.051822][   T73]      inet6_addr_add+0x12f/0xa40
[ 4906.051822][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4906.051822][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4906.051822][   T73]      netlink_rcv_skb+0x130/0x360
[ 4906.051822][   T73]      netlink_unicast+0x449/0x710
[ 4906.051822][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4906.051822][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4906.051822][   T73]      ___sys_sendmsg+0xee/0x170
[ 4906.051822][   T73]      __sys_sendmsg+0xcd/0x170
[ 4906.051822][   T73]      do_syscall_64+0xc6/0x1e0
[ 4906.051822][   T73] 
[ 4906.053844][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4906.053844][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4906.053844][   T73]      ipv6_find_idev+0x102/0x170
[ 4906.053844][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4906.053844][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4906.053844][   T73]      netlink_rcv_skb+0x130/0x360
[ 4906.053844][   T73]      netlink_unicast+0x449/0x710
[ 4906.053844][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4906.053844][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4906.053844][   T73]      ___sys_sendmsg+0xee/0x170
[ 4906.053844][   T73]      __sys_sendmsg+0xcd/0x170
[ 4906.053844][   T73]      do_syscall_64+0xc6/0x1e0
[ 4906.053844][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4906.053844][   T73] 
[ 4906.055425][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4906.055425][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4906.055425][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4906.055425][   T73]      ipv6_find_idev+0x102/0x170
[ 4906.055425][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4906.055425][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4906.055425][   T73]      netlink_rcv_skb+0x130/0x360
[ 4906.055425][   T73]      netlink_unicast+0x449/0x710
[ 4906.055425][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4906.055425][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4906.055425][   T73]      ___sys_sendmsg+0xee/0x170
[ 4906.055425][   T73]      __sys_sendmsg+0xcd/0x170
[ 4906.055425][   T73]      do_syscall_64+0xc6/0x1e0
[ 4906.055425][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4906.055425][   T73] 
[ 4906.057160][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4906.057453][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4906.057453][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4906.057453][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4906.057453][   T73]      fib6_nh_init+0xa22/0x1580
[ 4906.057453][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4906.057453][   T73]      ip6_route_add+0x1c/0x140
[ 4906.057453][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4906.057453][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4906.057453][   T73]      netlink_rcv_skb+0x130/0x360
[ 4906.057453][   T73]      netlink_unicast+0x449/0x710
[ 4906.057453][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4906.057453][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4906.057453][   T73]      ___sys_sendmsg+0xee/0x170
[ 4906.057453][   T73]      __sys_sendmsg+0xcd/0x170
[ 4906.057453][   T73]      do_syscall_64+0xc6/0x1e0
[ 4906.057453][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4906.057453][   T73] 
[ 4906.059561][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4906.059561][   T73]      dst_init+0x84/0x4a0
[ 4906.059561][   T73]      dst_alloc+0x97/0x150
[ 4906.059561][   T73]      ip6_dst_alloc+0x23/0x90
[ 4906.059561][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4906.059561][   T73]      ip6_pol_route+0x56f/0x840
[ 4906.059561][   T73]      fib6_rule_lookup+0x456/0x630
[ 4906.059561][   T73]      ip6_route_input+0x59c/0xa50
[ 4906.059561][   T73]      ipv6_rcv+0x397/0x810
[ 4906.059561][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4906.059561][   T73]      process_backlog+0x101/0x620
[ 4906.059561][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4906.059561][   T73]      net_rx_action+0x495/0xbe0
[ 4906.059561][   T73]      __do_softirq+0x1b5/0x7f6
[ 4906.059561][   T73] 
[ 4906.061479][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4906.061479][   T73]      netdev_get_by_index+0x5e/0x80
[ 4906.061479][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4906.061479][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4906.061479][   T73]      ip6_route_add+0x1c/0x140
[ 4906.061479][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4906.061479][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4906.061479][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4906.061479][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4906.061479][   T73]      netlink_rcv_skb+0x130/0x360
[ 4906.061479][   T73]      netlink_unicast+0x449/0x710
[ 4906.061479][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4906.061479][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4906.061479][   T73]      ___sys_sendmsg+0xee/0x170
[ 4906.061479][   T73]      __sys_sendmsg+0xcd/0x170
[ 4906.061479][   T73]      do_syscall_64+0xc6/0x1e0
[ 4906.061479][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4906.061479][   T73] 
[ 4906.063790][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4906.063790][   T73]      netdev_get_by_index+0x5e/0x80
[ 4906.063790][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4906.063790][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4906.063790][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4906.063790][   T73]      ipv6_add_addr+0x411/0x2000
[ 4906.063790][   T73]      inet6_addr_add+0x30e/0xa40
[ 4906.063790][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4906.063790][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4906.063790][   T73]      netlink_rcv_skb+0x130/0x360
[ 4906.063790][   T73]      netlink_unicast+0x449/0x710
[ 4906.063790][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4906.063790][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4906.063790][   T73]      ___sys_sendmsg+0xee/0x170
[ 4906.063790][   T73]      __sys_sendmsg+0xcd/0x170
[ 4906.063790][   T73]      do_syscall_64+0xc6/0x1e0
[ 4906.063790][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4906.063790][   T73] 
[ 4906.066067][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4906.066067][   T73]      netdev_get_by_index+0x5e/0x80
[ 4906.066067][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4906.066067][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4906.066067][   T73]      ip6_route_add+0x1c/0x140
[ 4906.066067][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4906.066067][   T73]      addrconf_add_dev+0xe2/0x170
[ 4906.066067][   T73]      inet6_addr_add+0x12f/0xa40
[ 4906.066067][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4906.066067][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4906.066067][   T73]      netlink_rcv_skb+0x130/0x360
[ 4906.066067][   T73]      netlink_unicast+0x449/0x710
[ 4906.066067][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4906.066067][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4906.066067][   T73]      ___sys_sendmsg+0xee/0x170
[ 4906.066067][   T73]      __sys_sendmsg+0xcd/0x170
[ 4906.066067][   T73]      do_syscall_64+0xc6/0x1e0
[ 4906.066067][   T73] 
[ 4906.068249][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4906.068249][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4906.068249][   T73]      ipv6_find_idev+0x102/0x170
[ 4906.068249][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4906.068249][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4906.068249][   T73]      netlink_rcv_skb+0x130/0x360
[ 4906.068249][   T73]      netlink_unicast+0x449/0x710
[ 4906.068249][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4906.068249][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4906.068249][   T73]      ___sys_sendmsg+0xee/0x170
[ 4906.068249][   T73]      __sys_sendmsg+0xcd/0x170
[ 4906.068249][   T73]      do_syscall_64+0xc6/0x1e0
[ 4906.068249][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4906.068249][   T73] 
[ 4906.070591][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4906.070591][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4906.070591][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4906.070591][   T73]      ipv6_find_idev+0x102/0x170
[ 4906.070591][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4906.070591][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4906.070591][   T73]      netlink_rcv_skb+0x130/0x360
[ 4906.070591][   T73]      netlink_unicast+0x449/0x710
[ 4906.070591][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4906.070591][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4906.070591][   T73]      ___sys_sendmsg+0xee/0x170
[ 4906.070591][   T73]      __sys_sendmsg+0xcd/0x170
[ 4906.070591][   T73]      do_syscall_64+0xc6/0x1e0
[ 4906.070591][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4906.070591][   T73] 
[ 4906.072571][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4906.073295][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4906.073295][   T73]      netdev_get_by_index+0x5e/0x80
[ 4906.073295][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4906.073295][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4906.073295][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4906.073295][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4906.073295][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4906.073295][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4906.073295][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4906.073295][   T73]      addrconf_dad_begin+0x310/0x670
[ 4906.073295][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4906.073295][   T73]      process_one_work+0x84d/0x18a0
[ 4906.073295][   T73]      worker_thread+0x587/0xd30
[ 4906.073295][   T73]      kthread+0x28a/0x350
[ 4906.073295][   T73]      ret_from_fork+0x31/0x70
[ 4906.073295][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4906.073295][   T73] 
[ 4906.075296][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4906.075296][   T73]      netdev_get_by_index+0x5e/0x80
[ 4906.075296][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4906.075296][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4906.075296][   T73]      ip6_route_add+0x1c/0x140
[ 4906.075296][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4906.075296][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4906.075296][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4906.075296][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4906.075296][   T73]      netlink_rcv_skb+0x130/0x360
[ 4906.075296][   T73]      netlink_unicast+0x449/0x710
[ 4906.075296][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4906.075296][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4906.075296][   T73]      ___sys_sendmsg+0xee/0x170
[ 4906.075296][   T73]      __sys_sendmsg+0xcd/0x170
[ 4906.075296][   T73]      do_syscall_64+0xc6/0x1e0
[ 4906.075296][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4906.075296][   T73] 
[ 4906.077454][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4906.077454][   T73]      netdev_get_by_index+0x5e/0x80
[ 4906.077454][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4906.077454][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4906.077454][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4906.077454][   T73]      ipv6_add_addr+0x411/0x2000
[ 4906.077454][   T73]      inet6_addr_add+0x30e/0xa40
[ 4906.077454][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4906.077454][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4906.077454][   T73]      netlink_rcv_skb+0x130/0x360
[ 4906.077454][   T73]      netlink_unicast+0x449/0x710
[ 4906.077454][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4906.077454][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4906.077454][   T73]      ___sys_sendmsg+0xee/0x170
[ 4906.077454][   T73]      __sys_sendmsg+0xcd/0x170
[ 4906.077454][   T73]      do_syscall_64+0xc6/0x1e0
[ 4906.077454][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4906.077454][   T73] 
[ 4906.082781][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4906.082781][   T73]      netdev_get_by_index+0x5e/0x80
[ 4906.082781][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4906.082781][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4906.082781][   T73]      ip6_route_add+0x1c/0x140
[ 4906.082781][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4906.082781][   T73]      addrconf_add_dev+0xe2/0x170
[ 4906.082781][   T73]      inet6_addr_add+0x12f/0xa40
[ 4906.082781][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4906.082781][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4906.082781][   T73]      netlink_rcv_skb+0x130/0x360
[ 4906.082781][   T73]      netlink_unicast+0x449/0x710
[ 4906.082781][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4906.082781][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4906.082781][   T73]      ___sys_sendmsg+0xee/0x170
[ 4906.082781][   T73]      __sys_sendmsg+0xcd/0x170
[ 4906.082781][   T73]      do_syscall_64+0xc6/0x1e0
[ 4906.082781][   T73] 
[ 4906.084961][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4906.084961][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4906.084961][   T73]      ipv6_find_idev+0x102/0x170
[ 4906.084961][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4906.084961][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4906.084961][   T73]      netlink_rcv_skb+0x130/0x360
[ 4906.084961][   T73]      netlink_unicast+0x449/0x710
[ 4906.084961][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4906.084961][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4906.084961][   T73]      ___sys_sendmsg+0xee/0x170
[ 4906.084961][   T73]      __sys_sendmsg+0xcd/0x170
[ 4906.084961][   T73]      do_syscall_64+0xc6/0x1e0
[ 4906.084961][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4906.084961][   T73] 
[ 4906.086776][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4906.086776][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4906.086776][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4906.086776][   T73]      ipv6_find_idev+0x102/0x170
[ 4906.086776][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4906.086776][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4906.086776][   T73]      netlink_rcv_skb+0x130/0x360
[ 4906.086776][   T73]      netlink_unicast+0x449/0x710
[ 4906.086776][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4906.086776][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4906.086776][   T73]      ___sys_sendmsg+0xee/0x170
[ 4906.086776][   T73]      __sys_sendmsg+0xcd/0x170
[ 4906.086776][   T73]      do_syscall_64+0xc6/0x1e0
[ 4906.086776][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4906.086776][   T73] 
[ 4916.327770][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4916.328278][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4916.328278][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4916.328278][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4916.328278][   T73]      fib6_nh_init+0xa22/0x1580
[ 4916.328278][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4916.328278][   T73]      ip6_route_add+0x1c/0x140
[ 4916.328278][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4916.328278][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4916.328278][   T73]      netlink_rcv_skb+0x130/0x360
[ 4916.328278][   T73]      netlink_unicast+0x449/0x710
[ 4916.328278][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4916.328278][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4916.328278][   T73]      ___sys_sendmsg+0xee/0x170
[ 4916.328278][   T73]      __sys_sendmsg+0xcd/0x170
[ 4916.328278][   T73]      do_syscall_64+0xc6/0x1e0
[ 4916.328278][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4916.328278][   T73] 
[ 4916.330438][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4916.330438][   T73]      dst_init+0x84/0x4a0
[ 4916.330438][   T73]      dst_alloc+0x97/0x150
[ 4916.330438][   T73]      ip6_dst_alloc+0x23/0x90
[ 4916.330438][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4916.330438][   T73]      ip6_pol_route+0x56f/0x840
[ 4916.330438][   T73]      fib6_rule_lookup+0x456/0x630
[ 4916.330438][   T73]      ip6_route_input+0x59c/0xa50
[ 4916.330438][   T73]      ipv6_rcv+0x397/0x810
[ 4916.330438][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4916.330438][   T73]      process_backlog+0x101/0x620
[ 4916.330438][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4916.330438][   T73]      net_rx_action+0x495/0xbe0
[ 4916.330438][   T73]      __do_softirq+0x1b5/0x7f6
[ 4916.330438][   T73] 
[ 4916.332291][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4916.332291][   T73]      netdev_get_by_index+0x5e/0x80
[ 4916.332291][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4916.332291][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4916.332291][   T73]      ip6_route_add+0x1c/0x140
[ 4916.332291][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4916.332291][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4916.332291][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4916.332291][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4916.332291][   T73]      netlink_rcv_skb+0x130/0x360
[ 4916.332291][   T73]      netlink_unicast+0x449/0x710
[ 4916.332291][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4916.332291][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4916.332291][   T73]      ___sys_sendmsg+0xee/0x170
[ 4916.332291][   T73]      __sys_sendmsg+0xcd/0x170
[ 4916.332291][   T73]      do_syscall_64+0xc6/0x1e0
[ 4916.332291][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4916.332291][   T73] 
[ 4916.334523][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4916.334523][   T73]      netdev_get_by_index+0x5e/0x80
[ 4916.334523][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4916.334523][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4916.334523][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4916.334523][   T73]      ipv6_add_addr+0x411/0x2000
[ 4916.334523][   T73]      inet6_addr_add+0x30e/0xa40
[ 4916.334523][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4916.334523][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4916.334523][   T73]      netlink_rcv_skb+0x130/0x360
[ 4916.334523][   T73]      netlink_unicast+0x449/0x710
[ 4916.334523][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4916.334523][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4916.334523][   T73]      ___sys_sendmsg+0xee/0x170
[ 4916.334523][   T73]      __sys_sendmsg+0xcd/0x170
[ 4916.334523][   T73]      do_syscall_64+0xc6/0x1e0
[ 4916.334523][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4916.334523][   T73] 
[ 4916.336778][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4916.336778][   T73]      netdev_get_by_index+0x5e/0x80
[ 4916.336778][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4916.336778][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4916.336778][   T73]      ip6_route_add+0x1c/0x140
[ 4916.336778][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4916.336778][   T73]      addrconf_add_dev+0xe2/0x170
[ 4916.336778][   T73]      inet6_addr_add+0x12f/0xa40
[ 4916.336778][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4916.336778][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4916.336778][   T73]      netlink_rcv_skb+0x130/0x360
[ 4916.336778][   T73]      netlink_unicast+0x449/0x710
[ 4916.336778][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4916.336778][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4916.336778][   T73]      ___sys_sendmsg+0xee/0x170
[ 4916.336778][   T73]      __sys_sendmsg+0xcd/0x170
[ 4916.336778][   T73]      do_syscall_64+0xc6/0x1e0
[ 4916.336778][   T73] 
[ 4916.338970][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4916.338970][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4916.338970][   T73]      ipv6_find_idev+0x102/0x170
[ 4916.338970][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4916.338970][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4916.338970][   T73]      netlink_rcv_skb+0x130/0x360
[ 4916.338970][   T73]      netlink_unicast+0x449/0x710
[ 4916.338970][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4916.338970][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4916.338970][   T73]      ___sys_sendmsg+0xee/0x170
[ 4916.338970][   T73]      __sys_sendmsg+0xcd/0x170
[ 4916.338970][   T73]      do_syscall_64+0xc6/0x1e0
[ 4916.338970][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4916.338970][   T73] 
[ 4916.340708][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4916.340708][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4916.340708][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4916.340708][   T73]      ipv6_find_idev+0x102/0x170
[ 4916.340708][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4916.340708][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4916.340708][   T73]      netlink_rcv_skb+0x130/0x360
[ 4916.340708][   T73]      netlink_unicast+0x449/0x710
[ 4916.340708][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4916.340708][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4916.340708][   T73]      ___sys_sendmsg+0xee/0x170
[ 4916.340708][   T73]      __sys_sendmsg+0xcd/0x170
[ 4916.340708][   T73]      do_syscall_64+0xc6/0x1e0
[ 4916.340708][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4916.340708][   T73] 
[ 4916.342608][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4916.342931][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4916.342931][   T73]      netdev_get_by_index+0x5e/0x80
[ 4916.342931][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4916.342931][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4916.342931][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4916.342931][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4916.342931][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4916.342931][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4916.342931][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4916.342931][   T73]      addrconf_dad_begin+0x310/0x670
[ 4916.342931][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4916.342931][   T73]      process_one_work+0x84d/0x18a0
[ 4916.342931][   T73]      worker_thread+0x587/0xd30
[ 4916.342931][   T73]      kthread+0x28a/0x350
[ 4916.342931][   T73]      ret_from_fork+0x31/0x70
[ 4916.342931][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4916.342931][   T73] 
[ 4916.345065][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4916.345065][   T73]      netdev_get_by_index+0x5e/0x80
[ 4916.345065][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4916.345065][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4916.345065][   T73]      ip6_route_add+0x1c/0x140
[ 4916.345065][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4916.345065][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4916.345065][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4916.345065][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4916.345065][   T73]      netlink_rcv_skb+0x130/0x360
[ 4916.345065][   T73]      netlink_unicast+0x449/0x710
[ 4916.345065][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4916.345065][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4916.345065][   T73]      ___sys_sendmsg+0xee/0x170
[ 4916.345065][   T73]      __sys_sendmsg+0xcd/0x170
[ 4916.345065][   T73]      do_syscall_64+0xc6/0x1e0
[ 4916.345065][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4916.345065][   T73] 
[ 4916.347447][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4916.347447][   T73]      netdev_get_by_index+0x5e/0x80
[ 4916.347447][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4916.347447][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4916.347447][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4916.347447][   T73]      ipv6_add_addr+0x411/0x2000
[ 4916.347447][   T73]      inet6_addr_add+0x30e/0xa40
[ 4916.347447][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4916.347447][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4916.347447][   T73]      netlink_rcv_skb+0x130/0x360
[ 4916.347447][   T73]      netlink_unicast+0x449/0x710
[ 4916.347447][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4916.347447][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4916.347447][   T73]      ___sys_sendmsg+0xee/0x170
[ 4916.347447][   T73]      __sys_sendmsg+0xcd/0x170
[ 4916.347447][   T73]      do_syscall_64+0xc6/0x1e0
[ 4916.347447][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4916.347447][   T73] 
[ 4916.349736][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4916.349736][   T73]      netdev_get_by_index+0x5e/0x80
[ 4916.349736][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4916.349736][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4916.349736][   T73]      ip6_route_add+0x1c/0x140
[ 4916.349736][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4916.349736][   T73]      addrconf_add_dev+0xe2/0x170
[ 4916.349736][   T73]      inet6_addr_add+0x12f/0xa40
[ 4916.349736][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4916.349736][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4916.349736][   T73]      netlink_rcv_skb+0x130/0x360
[ 4916.349736][   T73]      netlink_unicast+0x449/0x710
[ 4916.349736][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4916.349736][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4916.349736][   T73]      ___sys_sendmsg+0xee/0x170
[ 4916.349736][   T73]      __sys_sendmsg+0xcd/0x170
[ 4916.349736][   T73]      do_syscall_64+0xc6/0x1e0
[ 4916.349736][   T73] 
[ 4916.351948][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4916.351948][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4916.351948][   T73]      ipv6_find_idev+0x102/0x170
[ 4916.351948][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4916.351948][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4916.351948][   T73]      netlink_rcv_skb+0x130/0x360
[ 4916.351948][   T73]      netlink_unicast+0x449/0x710
[ 4916.351948][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4916.351948][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4916.351948][   T73]      ___sys_sendmsg+0xee/0x170
[ 4916.351948][   T73]      __sys_sendmsg+0xcd/0x170
[ 4916.351948][   T73]      do_syscall_64+0xc6/0x1e0
[ 4916.351948][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4916.351948][   T73] 
[ 4916.353673][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4916.353673][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4916.353673][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4916.353673][   T73]      ipv6_find_idev+0x102/0x170
[ 4916.353673][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4916.353673][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4916.353673][   T73]      netlink_rcv_skb+0x130/0x360
[ 4916.353673][   T73]      netlink_unicast+0x449/0x710
[ 4916.353673][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4916.353673][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4916.353673][   T73]      ___sys_sendmsg+0xee/0x170
[ 4916.353673][   T73]      __sys_sendmsg+0xcd/0x170
[ 4916.353673][   T73]      do_syscall_64+0xc6/0x1e0
[ 4916.353673][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4916.353673][   T73] 
[ 4916.355557][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4916.355879][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4916.355879][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4916.355879][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4916.355879][   T73]      fib6_nh_init+0xa22/0x1580
[ 4916.355879][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4916.355879][   T73]      ip6_route_add+0x1c/0x140
[ 4916.355879][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4916.355879][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4916.355879][   T73]      netlink_rcv_skb+0x130/0x360
[ 4916.355879][   T73]      netlink_unicast+0x449/0x710
[ 4916.355879][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4916.355879][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4916.355879][   T73]      ___sys_sendmsg+0xee/0x170
[ 4916.355879][   T73]      __sys_sendmsg+0xcd/0x170
[ 4916.355879][   T73]      do_syscall_64+0xc6/0x1e0
[ 4916.355879][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4916.355879][   T73] 
[ 4916.358220][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4916.358220][   T73]      dst_init+0x84/0x4a0
[ 4916.358220][   T73]      dst_alloc+0x97/0x150
[ 4916.358220][   T73]      ip6_dst_alloc+0x23/0x90
[ 4916.358220][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4916.358220][   T73]      ip6_pol_route+0x56f/0x840
[ 4916.358220][   T73]      fib6_rule_lookup+0x456/0x630
[ 4916.358220][   T73]      ip6_route_input+0x59c/0xa50
[ 4916.358220][   T73]      ipv6_rcv+0x397/0x810
[ 4916.358220][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4916.358220][   T73]      process_backlog+0x101/0x620
[ 4916.358220][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4916.358220][   T73]      net_rx_action+0x495/0xbe0
[ 4916.358220][   T73]      __do_softirq+0x1b5/0x7f6
[ 4916.358220][   T73] 
[ 4916.360313][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4916.360313][   T73]      netdev_get_by_index+0x5e/0x80
[ 4916.360313][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4916.360313][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4916.360313][   T73]      ip6_route_add+0x1c/0x140
[ 4916.360313][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4916.360313][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4916.360313][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4916.360313][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4916.360313][   T73]      netlink_rcv_skb+0x130/0x360
[ 4916.360313][   T73]      netlink_unicast+0x449/0x710
[ 4916.360313][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4916.360313][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4916.360313][   T73]      ___sys_sendmsg+0xee/0x170
[ 4916.360313][   T73]      __sys_sendmsg+0xcd/0x170
[ 4916.360313][   T73]      do_syscall_64+0xc6/0x1e0
[ 4916.360313][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4916.360313][   T73] 
[ 4916.362826][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4916.362826][   T73]      netdev_get_by_index+0x5e/0x80
[ 4916.362826][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4916.362826][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4916.362826][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4916.362826][   T73]      ipv6_add_addr+0x411/0x2000
[ 4916.362826][   T73]      inet6_addr_add+0x30e/0xa40
[ 4916.362826][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4916.362826][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4916.362826][   T73]      netlink_rcv_skb+0x130/0x360
[ 4916.362826][   T73]      netlink_unicast+0x449/0x710
[ 4916.362826][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4916.362826][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4916.362826][   T73]      ___sys_sendmsg+0xee/0x170
[ 4916.362826][   T73]      __sys_sendmsg+0xcd/0x170
[ 4916.362826][   T73]      do_syscall_64+0xc6/0x1e0
[ 4916.362826][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4916.362826][   T73] 
[ 4916.365255][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4916.365255][   T73]      netdev_get_by_index+0x5e/0x80
[ 4916.365255][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4916.365255][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4916.365255][   T73]      ip6_route_add+0x1c/0x140
[ 4916.365255][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4916.365255][   T73]      addrconf_add_dev+0xe2/0x170
[ 4916.365255][   T73]      inet6_addr_add+0x12f/0xa40
[ 4916.365255][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4916.365255][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4916.365255][   T73]      netlink_rcv_skb+0x130/0x360
[ 4916.365255][   T73]      netlink_unicast+0x449/0x710
[ 4916.365255][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4916.365255][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4916.365255][   T73]      ___sys_sendmsg+0xee/0x170
[ 4916.365255][   T73]      __sys_sendmsg+0xcd/0x170
[ 4916.365255][   T73]      do_syscall_64+0xc6/0x1e0
[ 4916.365255][   T73] 
[ 4916.367701][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4916.367701][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4916.367701][   T73]      ipv6_find_idev+0x102/0x170
[ 4916.367701][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4916.367701][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4916.367701][   T73]      netlink_rcv_skb+0x130/0x360
[ 4916.367701][   T73]      netlink_unicast+0x449/0x710
[ 4916.367701][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4916.367701][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4916.367701][   T73]      ___sys_sendmsg+0xee/0x170
[ 4916.367701][   T73]      __sys_sendmsg+0xcd/0x170
[ 4916.367701][   T73]      do_syscall_64+0xc6/0x1e0
[ 4916.367701][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4916.367701][   T73] 
[ 4916.369666][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4916.369666][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4916.369666][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4916.369666][   T73]      ipv6_find_idev+0x102/0x170
[ 4916.369666][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4916.369666][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4916.369666][   T73]      netlink_rcv_skb+0x130/0x360
[ 4916.369666][   T73]      netlink_unicast+0x449/0x710
[ 4916.369666][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4916.369666][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4916.369666][   T73]      ___sys_sendmsg+0xee/0x170
[ 4916.369666][   T73]      __sys_sendmsg+0xcd/0x170
[ 4916.369666][   T73]      do_syscall_64+0xc6/0x1e0
[ 4916.369666][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4916.369666][   T73] 
[ 4916.371746][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4916.372112][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4916.372112][   T73]      netdev_get_by_index+0x5e/0x80
[ 4916.372112][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4916.372112][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4916.372112][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4916.372112][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4916.372112][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4916.372112][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4916.372112][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4916.372112][   T73]      addrconf_dad_begin+0x310/0x670
[ 4916.372112][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4916.372112][   T73]      process_one_work+0x84d/0x18a0
[ 4916.372112][   T73]      worker_thread+0x587/0xd30
[ 4916.372112][   T73]      kthread+0x28a/0x350
[ 4916.372112][   T73]      ret_from_fork+0x31/0x70
[ 4916.372112][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4916.372112][   T73] 
[ 4916.374447][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4916.374447][   T73]      netdev_get_by_index+0x5e/0x80
[ 4916.374447][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4916.374447][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4916.374447][   T73]      ip6_route_add+0x1c/0x140
[ 4916.374447][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4916.374447][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4916.374447][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4916.374447][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4916.374447][   T73]      netlink_rcv_skb+0x130/0x360
[ 4916.374447][   T73]      netlink_unicast+0x449/0x710
[ 4916.374447][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4916.374447][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4916.374447][   T73]      ___sys_sendmsg+0xee/0x170
[ 4916.374447][   T73]      __sys_sendmsg+0xcd/0x170
[ 4916.374447][   T73]      do_syscall_64+0xc6/0x1e0
[ 4916.374447][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4916.374447][   T73] 
[ 4916.376969][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4916.376969][   T73]      netdev_get_by_index+0x5e/0x80
[ 4916.376969][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4916.376969][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4916.376969][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4916.376969][   T73]      ipv6_add_addr+0x411/0x2000
[ 4916.376969][   T73]      inet6_addr_add+0x30e/0xa40
[ 4916.376969][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4916.376969][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4916.376969][   T73]      netlink_rcv_skb+0x130/0x360
[ 4916.376969][   T73]      netlink_unicast+0x449/0x710
[ 4916.376969][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4916.376969][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4916.376969][   T73]      ___sys_sendmsg+0xee/0x170
[ 4916.376969][   T73]      __sys_sendmsg+0xcd/0x170
[ 4916.376969][   T73]      do_syscall_64+0xc6/0x1e0
[ 4916.376969][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4916.376969][   T73] 
[ 4916.379473][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4916.379473][   T73]      netdev_get_by_index+0x5e/0x80
[ 4916.379473][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4916.379473][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4916.379473][   T73]      ip6_route_add+0x1c/0x140
[ 4916.379473][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4916.379473][   T73]      addrconf_add_dev+0xe2/0x170
[ 4916.379473][   T73]      inet6_addr_add+0x12f/0xa40
[ 4916.379473][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4916.379473][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4916.379473][   T73]      netlink_rcv_skb+0x130/0x360
[ 4916.379473][   T73]      netlink_unicast+0x449/0x710
[ 4916.379473][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4916.379473][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4916.379473][   T73]      ___sys_sendmsg+0xee/0x170
[ 4916.379473][   T73]      __sys_sendmsg+0xcd/0x170
[ 4916.379473][   T73]      do_syscall_64+0xc6/0x1e0
[ 4916.379473][   T73] 
[ 4916.382032][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4916.382032][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4916.382032][   T73]      ipv6_find_idev+0x102/0x170
[ 4916.382032][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4916.382032][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4916.382032][   T73]      netlink_rcv_skb+0x130/0x360
[ 4916.382032][   T73]      netlink_unicast+0x449/0x710
[ 4916.382032][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4916.382032][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4916.382032][   T73]      ___sys_sendmsg+0xee/0x170
[ 4916.382032][   T73]      __sys_sendmsg+0xcd/0x170
[ 4916.382032][   T73]      do_syscall_64+0xc6/0x1e0
[ 4916.382032][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4916.382032][   T73] 
[ 4916.383978][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4916.383978][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4916.383978][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4916.383978][   T73]      ipv6_find_idev+0x102/0x170
[ 4916.383978][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4916.383978][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4916.383978][   T73]      netlink_rcv_skb+0x130/0x360
[ 4916.383978][   T73]      netlink_unicast+0x449/0x710
[ 4916.383978][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4916.383978][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4916.383978][   T73]      ___sys_sendmsg+0xee/0x170
[ 4916.383978][   T73]      __sys_sendmsg+0xcd/0x170
[ 4916.383978][   T73]      do_syscall_64+0xc6/0x1e0
[ 4916.383978][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4916.383978][   T73] 
[ 4926.479754][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4926.480304][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4926.480304][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4926.480304][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4926.480304][   T73]      fib6_nh_init+0xa22/0x1580
[ 4926.480304][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4926.480304][   T73]      ip6_route_add+0x1c/0x140
[ 4926.480304][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4926.480304][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4926.480304][   T73]      netlink_rcv_skb+0x130/0x360
[ 4926.480304][   T73]      netlink_unicast+0x449/0x710
[ 4926.480304][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4926.480304][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4926.480304][   T73]      ___sys_sendmsg+0xee/0x170
[ 4926.480304][   T73]      __sys_sendmsg+0xcd/0x170
[ 4926.480304][   T73]      do_syscall_64+0xc6/0x1e0
[ 4926.480304][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4926.480304][   T73] 
[ 4926.482461][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4926.482461][   T73]      dst_init+0x84/0x4a0
[ 4926.482461][   T73]      dst_alloc+0x97/0x150
[ 4926.482461][   T73]      ip6_dst_alloc+0x23/0x90
[ 4926.482461][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4926.482461][   T73]      ip6_pol_route+0x56f/0x840
[ 4926.482461][   T73]      fib6_rule_lookup+0x456/0x630
[ 4926.482461][   T73]      ip6_route_input+0x59c/0xa50
[ 4926.482461][   T73]      ipv6_rcv+0x397/0x810
[ 4926.482461][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4926.482461][   T73]      process_backlog+0x101/0x620
[ 4926.482461][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4926.482461][   T73]      net_rx_action+0x495/0xbe0
[ 4926.482461][   T73]      __do_softirq+0x1b5/0x7f6
[ 4926.482461][   T73] 
[ 4926.484318][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4926.484318][   T73]      netdev_get_by_index+0x5e/0x80
[ 4926.484318][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4926.484318][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4926.484318][   T73]      ip6_route_add+0x1c/0x140
[ 4926.484318][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4926.484318][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4926.484318][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4926.484318][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4926.484318][   T73]      netlink_rcv_skb+0x130/0x360
[ 4926.484318][   T73]      netlink_unicast+0x449/0x710
[ 4926.484318][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4926.484318][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4926.484318][   T73]      ___sys_sendmsg+0xee/0x170
[ 4926.484318][   T73]      __sys_sendmsg+0xcd/0x170
[ 4926.484318][   T73]      do_syscall_64+0xc6/0x1e0
[ 4926.484318][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4926.484318][   T73] 
[ 4926.486570][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4926.486570][   T73]      netdev_get_by_index+0x5e/0x80
[ 4926.486570][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4926.486570][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4926.486570][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4926.486570][   T73]      ipv6_add_addr+0x411/0x2000
[ 4926.486570][   T73]      inet6_addr_add+0x30e/0xa40
[ 4926.486570][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4926.486570][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4926.486570][   T73]      netlink_rcv_skb+0x130/0x360
[ 4926.486570][   T73]      netlink_unicast+0x449/0x710
[ 4926.486570][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4926.486570][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4926.486570][   T73]      ___sys_sendmsg+0xee/0x170
[ 4926.486570][   T73]      __sys_sendmsg+0xcd/0x170
[ 4926.486570][   T73]      do_syscall_64+0xc6/0x1e0
[ 4926.486570][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4926.486570][   T73] 
[ 4926.488816][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4926.488816][   T73]      netdev_get_by_index+0x5e/0x80
[ 4926.488816][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4926.488816][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4926.488816][   T73]      ip6_route_add+0x1c/0x140
[ 4926.488816][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4926.488816][   T73]      addrconf_add_dev+0xe2/0x170
[ 4926.488816][   T73]      inet6_addr_add+0x12f/0xa40
[ 4926.488816][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4926.488816][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4926.488816][   T73]      netlink_rcv_skb+0x130/0x360
[ 4926.488816][   T73]      netlink_unicast+0x449/0x710
[ 4926.488816][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4926.488816][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4926.488816][   T73]      ___sys_sendmsg+0xee/0x170
[ 4926.488816][   T73]      __sys_sendmsg+0xcd/0x170
[ 4926.488816][   T73]      do_syscall_64+0xc6/0x1e0
[ 4926.488816][   T73] 
[ 4926.491051][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4926.491051][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4926.491051][   T73]      ipv6_find_idev+0x102/0x170
[ 4926.491051][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4926.491051][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4926.491051][   T73]      netlink_rcv_skb+0x130/0x360
[ 4926.491051][   T73]      netlink_unicast+0x449/0x710
[ 4926.491051][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4926.491051][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4926.491051][   T73]      ___sys_sendmsg+0xee/0x170
[ 4926.491051][   T73]      __sys_sendmsg+0xcd/0x170
[ 4926.491051][   T73]      do_syscall_64+0xc6/0x1e0
[ 4926.491051][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4926.491051][   T73] 
[ 4926.492774][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4926.492774][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4926.492774][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4926.492774][   T73]      ipv6_find_idev+0x102/0x170
[ 4926.492774][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4926.492774][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4926.492774][   T73]      netlink_rcv_skb+0x130/0x360
[ 4926.492774][   T73]      netlink_unicast+0x449/0x710
[ 4926.492774][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4926.492774][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4926.492774][   T73]      ___sys_sendmsg+0xee/0x170
[ 4926.492774][   T73]      __sys_sendmsg+0xcd/0x170
[ 4926.492774][   T73]      do_syscall_64+0xc6/0x1e0
[ 4926.492774][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4926.492774][   T73] 
[ 4926.494675][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4926.494976][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4926.494976][   T73]      netdev_get_by_index+0x5e/0x80
[ 4926.494976][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4926.494976][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4926.494976][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4926.494976][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4926.494976][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4926.494976][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4926.494976][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4926.494976][   T73]      addrconf_dad_begin+0x310/0x670
[ 4926.494976][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4926.494976][   T73]      process_one_work+0x84d/0x18a0
[ 4926.494976][   T73]      worker_thread+0x587/0xd30
[ 4926.494976][   T73]      kthread+0x28a/0x350
[ 4926.494976][   T73]      ret_from_fork+0x31/0x70
[ 4926.494976][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4926.494976][   T73] 
[ 4926.497172][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4926.497172][   T73]      netdev_get_by_index+0x5e/0x80
[ 4926.497172][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4926.497172][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4926.497172][   T73]      ip6_route_add+0x1c/0x140
[ 4926.497172][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4926.497172][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4926.497172][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4926.497172][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4926.497172][   T73]      netlink_rcv_skb+0x130/0x360
[ 4926.497172][   T73]      netlink_unicast+0x449/0x710
[ 4926.497172][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4926.497172][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4926.497172][   T73]      ___sys_sendmsg+0xee/0x170
[ 4926.497172][   T73]      __sys_sendmsg+0xcd/0x170
[ 4926.497172][   T73]      do_syscall_64+0xc6/0x1e0
[ 4926.497172][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4926.497172][   T73] 
[ 4926.499420][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4926.499420][   T73]      netdev_get_by_index+0x5e/0x80
[ 4926.499420][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4926.499420][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4926.499420][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4926.499420][   T73]      ipv6_add_addr+0x411/0x2000
[ 4926.499420][   T73]      inet6_addr_add+0x30e/0xa40
[ 4926.499420][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4926.499420][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4926.499420][   T73]      netlink_rcv_skb+0x130/0x360
[ 4926.499420][   T73]      netlink_unicast+0x449/0x710
[ 4926.499420][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4926.499420][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4926.499420][   T73]      ___sys_sendmsg+0xee/0x170
[ 4926.499420][   T73]      __sys_sendmsg+0xcd/0x170
[ 4926.499420][   T73]      do_syscall_64+0xc6/0x1e0
[ 4926.499420][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4926.499420][   T73] 
[ 4926.501685][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4926.501685][   T73]      netdev_get_by_index+0x5e/0x80
[ 4926.501685][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4926.501685][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4926.501685][   T73]      ip6_route_add+0x1c/0x140
[ 4926.501685][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4926.501685][   T73]      addrconf_add_dev+0xe2/0x170
[ 4926.501685][   T73]      inet6_addr_add+0x12f/0xa40
[ 4926.501685][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4926.501685][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4926.501685][   T73]      netlink_rcv_skb+0x130/0x360
[ 4926.501685][   T73]      netlink_unicast+0x449/0x710
[ 4926.501685][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4926.501685][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4926.501685][   T73]      ___sys_sendmsg+0xee/0x170
[ 4926.501685][   T73]      __sys_sendmsg+0xcd/0x170
[ 4926.501685][   T73]      do_syscall_64+0xc6/0x1e0
[ 4926.501685][   T73] 
[ 4926.503887][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4926.503887][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4926.503887][   T73]      ipv6_find_idev+0x102/0x170
[ 4926.503887][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4926.503887][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4926.503887][   T73]      netlink_rcv_skb+0x130/0x360
[ 4926.503887][   T73]      netlink_unicast+0x449/0x710
[ 4926.503887][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4926.503887][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4926.503887][   T73]      ___sys_sendmsg+0xee/0x170
[ 4926.503887][   T73]      __sys_sendmsg+0xcd/0x170
[ 4926.503887][   T73]      do_syscall_64+0xc6/0x1e0
[ 4926.503887][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4926.503887][   T73] 
[ 4926.505614][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4926.505614][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4926.505614][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4926.505614][   T73]      ipv6_find_idev+0x102/0x170
[ 4926.505614][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4926.505614][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4926.505614][   T73]      netlink_rcv_skb+0x130/0x360
[ 4926.505614][   T73]      netlink_unicast+0x449/0x710
[ 4926.505614][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4926.505614][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4926.505614][   T73]      ___sys_sendmsg+0xee/0x170
[ 4926.505614][   T73]      __sys_sendmsg+0xcd/0x170
[ 4926.505614][   T73]      do_syscall_64+0xc6/0x1e0
[ 4926.505614][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4926.505614][   T73] 
[ 4926.507583][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4926.507890][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4926.507890][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4926.507890][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4926.507890][   T73]      fib6_nh_init+0xa22/0x1580
[ 4926.507890][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4926.507890][   T73]      ip6_route_add+0x1c/0x140
[ 4926.507890][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4926.507890][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4926.507890][   T73]      netlink_rcv_skb+0x130/0x360
[ 4926.507890][   T73]      netlink_unicast+0x449/0x710
[ 4926.507890][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4926.507890][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4926.507890][   T73]      ___sys_sendmsg+0xee/0x170
[ 4926.507890][   T73]      __sys_sendmsg+0xcd/0x170
[ 4926.507890][   T73]      do_syscall_64+0xc6/0x1e0
[ 4926.507890][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4926.507890][   T73] 
[ 4926.510230][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4926.510230][   T73]      dst_init+0x84/0x4a0
[ 4926.510230][   T73]      dst_alloc+0x97/0x150
[ 4926.510230][   T73]      ip6_dst_alloc+0x23/0x90
[ 4926.510230][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4926.510230][   T73]      ip6_pol_route+0x56f/0x840
[ 4926.510230][   T73]      fib6_rule_lookup+0x456/0x630
[ 4926.510230][   T73]      ip6_route_input+0x59c/0xa50
[ 4926.510230][   T73]      ipv6_rcv+0x397/0x810
[ 4926.510230][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4926.510230][   T73]      process_backlog+0x101/0x620
[ 4926.510230][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4926.510230][   T73]      net_rx_action+0x495/0xbe0
[ 4926.510230][   T73]      __do_softirq+0x1b5/0x7f6
[ 4926.510230][   T73] 
[ 4926.512249][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4926.512249][   T73]      netdev_get_by_index+0x5e/0x80
[ 4926.512249][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4926.512249][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4926.512249][   T73]      ip6_route_add+0x1c/0x140
[ 4926.512249][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4926.512249][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4926.512249][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4926.512249][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4926.512249][   T73]      netlink_rcv_skb+0x130/0x360
[ 4926.512249][   T73]      netlink_unicast+0x449/0x710
[ 4926.512249][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4926.512249][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4926.512249][   T73]      ___sys_sendmsg+0xee/0x170
[ 4926.512249][   T73]      __sys_sendmsg+0xcd/0x170
[ 4926.512249][   T73]      do_syscall_64+0xc6/0x1e0
[ 4926.512249][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4926.512249][   T73] 
[ 4926.514767][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4926.514767][   T73]      netdev_get_by_index+0x5e/0x80
[ 4926.514767][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4926.514767][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4926.514767][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4926.514767][   T73]      ipv6_add_addr+0x411/0x2000
[ 4926.514767][   T73]      inet6_addr_add+0x30e/0xa40
[ 4926.514767][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4926.514767][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4926.514767][   T73]      netlink_rcv_skb+0x130/0x360
[ 4926.514767][   T73]      netlink_unicast+0x449/0x710
[ 4926.514767][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4926.514767][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4926.514767][   T73]      ___sys_sendmsg+0xee/0x170
[ 4926.514767][   T73]      __sys_sendmsg+0xcd/0x170
[ 4926.514767][   T73]      do_syscall_64+0xc6/0x1e0
[ 4926.514767][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4926.514767][   T73] 
[ 4926.517318][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4926.517318][   T73]      netdev_get_by_index+0x5e/0x80
[ 4926.517318][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4926.517318][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4926.517318][   T73]      ip6_route_add+0x1c/0x140
[ 4926.517318][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4926.517318][   T73]      addrconf_add_dev+0xe2/0x170
[ 4926.517318][   T73]      inet6_addr_add+0x12f/0xa40
[ 4926.517318][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4926.517318][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4926.517318][   T73]      netlink_rcv_skb+0x130/0x360
[ 4926.517318][   T73]      netlink_unicast+0x449/0x710
[ 4926.517318][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4926.517318][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4926.517318][   T73]      ___sys_sendmsg+0xee/0x170
[ 4926.517318][   T73]      __sys_sendmsg+0xcd/0x170
[ 4926.517318][   T73]      do_syscall_64+0xc6/0x1e0
[ 4926.517318][   T73] 
[ 4926.519700][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4926.519700][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4926.519700][   T73]      ipv6_find_idev+0x102/0x170
[ 4926.519700][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4926.519700][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4926.519700][   T73]      netlink_rcv_skb+0x130/0x360
[ 4926.519700][   T73]      netlink_unicast+0x449/0x710
[ 4926.519700][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4926.519700][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4926.519700][   T73]      ___sys_sendmsg+0xee/0x170
[ 4926.519700][   T73]      __sys_sendmsg+0xcd/0x170
[ 4926.519700][   T73]      do_syscall_64+0xc6/0x1e0
[ 4926.519700][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4926.519700][   T73] 
[ 4926.521617][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4926.521617][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4926.521617][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4926.521617][   T73]      ipv6_find_idev+0x102/0x170
[ 4926.521617][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4926.521617][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4926.521617][   T73]      netlink_rcv_skb+0x130/0x360
[ 4926.521617][   T73]      netlink_unicast+0x449/0x710
[ 4926.521617][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4926.521617][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4926.521617][   T73]      ___sys_sendmsg+0xee/0x170
[ 4926.521617][   T73]      __sys_sendmsg+0xcd/0x170
[ 4926.521617][   T73]      do_syscall_64+0xc6/0x1e0
[ 4926.521617][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4926.521617][   T73] 
[ 4926.523734][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4926.524036][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4926.524036][   T73]      netdev_get_by_index+0x5e/0x80
[ 4926.524036][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4926.524036][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4926.524036][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4926.524036][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4926.524036][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4926.524036][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4926.524036][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4926.524036][   T73]      addrconf_dad_begin+0x310/0x670
[ 4926.524036][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4926.524036][   T73]      process_one_work+0x84d/0x18a0
[ 4926.524036][   T73]      worker_thread+0x587/0xd30
[ 4926.524036][   T73]      kthread+0x28a/0x350
[ 4926.524036][   T73]      ret_from_fork+0x31/0x70
[ 4926.524036][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4926.524036][   T73] 
[ 4926.526435][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4926.526435][   T73]      netdev_get_by_index+0x5e/0x80
[ 4926.526435][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4926.526435][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4926.526435][   T73]      ip6_route_add+0x1c/0x140
[ 4926.526435][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4926.526435][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4926.526435][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4926.526435][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4926.526435][   T73]      netlink_rcv_skb+0x130/0x360
[ 4926.526435][   T73]      netlink_unicast+0x449/0x710
[ 4926.526435][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4926.526435][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4926.526435][   T73]      ___sys_sendmsg+0xee/0x170
[ 4926.526435][   T73]      __sys_sendmsg+0xcd/0x170
[ 4926.526435][   T73]      do_syscall_64+0xc6/0x1e0
[ 4926.526435][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4926.526435][   T73] 
[ 4926.528883][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4926.528883][   T73]      netdev_get_by_index+0x5e/0x80
[ 4926.528883][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4926.528883][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4926.528883][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4926.528883][   T73]      ipv6_add_addr+0x411/0x2000
[ 4926.528883][   T73]      inet6_addr_add+0x30e/0xa40
[ 4926.528883][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4926.528883][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4926.528883][   T73]      netlink_rcv_skb+0x130/0x360
[ 4926.528883][   T73]      netlink_unicast+0x449/0x710
[ 4926.528883][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4926.528883][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4926.528883][   T73]      ___sys_sendmsg+0xee/0x170
[ 4926.528883][   T73]      __sys_sendmsg+0xcd/0x170
[ 4926.528883][   T73]      do_syscall_64+0xc6/0x1e0
[ 4926.528883][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4926.528883][   T73] 
[ 4926.531381][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4926.531381][   T73]      netdev_get_by_index+0x5e/0x80
[ 4926.531381][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4926.531381][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4926.531381][   T73]      ip6_route_add+0x1c/0x140
[ 4926.531381][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4926.531381][   T73]      addrconf_add_dev+0xe2/0x170
[ 4926.531381][   T73]      inet6_addr_add+0x12f/0xa40
[ 4926.531381][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4926.531381][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4926.531381][   T73]      netlink_rcv_skb+0x130/0x360
[ 4926.531381][   T73]      netlink_unicast+0x449/0x710
[ 4926.531381][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4926.531381][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4926.531381][   T73]      ___sys_sendmsg+0xee/0x170
[ 4926.531381][   T73]      __sys_sendmsg+0xcd/0x170
[ 4926.531381][   T73]      do_syscall_64+0xc6/0x1e0
[ 4926.531381][   T73] 
[ 4926.533858][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4926.533858][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4926.533858][   T73]      ipv6_find_idev+0x102/0x170
[ 4926.533858][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4926.533858][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4926.533858][   T73]      netlink_rcv_skb+0x130/0x360
[ 4926.533858][   T73]      netlink_unicast+0x449/0x710
[ 4926.533858][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4926.533858][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4926.533858][   T73]      ___sys_sendmsg+0xee/0x170
[ 4926.533858][   T73]      __sys_sendmsg+0xcd/0x170
[ 4926.533858][   T73]      do_syscall_64+0xc6/0x1e0
[ 4926.533858][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4926.533858][   T73] 
[ 4926.535764][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4926.535764][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4926.535764][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4926.535764][   T73]      ipv6_find_idev+0x102/0x170
[ 4926.535764][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4926.535764][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4926.535764][   T73]      netlink_rcv_skb+0x130/0x360
[ 4926.535764][   T73]      netlink_unicast+0x449/0x710
[ 4926.535764][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4926.535764][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4926.535764][   T73]      ___sys_sendmsg+0xee/0x170
[ 4926.535764][   T73]      __sys_sendmsg+0xcd/0x170
[ 4926.535764][   T73]      do_syscall_64+0xc6/0x1e0
[ 4926.535764][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4926.535764][   T73] 
[ 4936.575810][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4936.576259][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4936.576259][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4936.576259][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4936.576259][   T73]      fib6_nh_init+0xa22/0x1580
[ 4936.576259][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4936.576259][   T73]      ip6_route_add+0x1c/0x140
[ 4936.576259][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4936.576259][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4936.576259][   T73]      netlink_rcv_skb+0x130/0x360
[ 4936.576259][   T73]      netlink_unicast+0x449/0x710
[ 4936.576259][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4936.576259][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4936.576259][   T73]      ___sys_sendmsg+0xee/0x170
[ 4936.576259][   T73]      __sys_sendmsg+0xcd/0x170
[ 4936.576259][   T73]      do_syscall_64+0xc6/0x1e0
[ 4936.576259][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4936.576259][   T73] 
[ 4936.578441][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4936.578441][   T73]      dst_init+0x84/0x4a0
[ 4936.578441][   T73]      dst_alloc+0x97/0x150
[ 4936.578441][   T73]      ip6_dst_alloc+0x23/0x90
[ 4936.578441][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4936.578441][   T73]      ip6_pol_route+0x56f/0x840
[ 4936.578441][   T73]      fib6_rule_lookup+0x456/0x630
[ 4936.578441][   T73]      ip6_route_input+0x59c/0xa50
[ 4936.578441][   T73]      ipv6_rcv+0x397/0x810
[ 4936.578441][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4936.578441][   T73]      process_backlog+0x101/0x620
[ 4936.578441][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4936.578441][   T73]      net_rx_action+0x495/0xbe0
[ 4936.578441][   T73]      __do_softirq+0x1b5/0x7f6
[ 4936.578441][   T73] 
[ 4936.580298][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4936.580298][   T73]      netdev_get_by_index+0x5e/0x80
[ 4936.580298][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4936.580298][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4936.580298][   T73]      ip6_route_add+0x1c/0x140
[ 4936.580298][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4936.580298][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4936.580298][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4936.580298][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4936.580298][   T73]      netlink_rcv_skb+0x130/0x360
[ 4936.580298][   T73]      netlink_unicast+0x449/0x710
[ 4936.580298][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4936.580298][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4936.580298][   T73]      ___sys_sendmsg+0xee/0x170
[ 4936.580298][   T73]      __sys_sendmsg+0xcd/0x170
[ 4936.580298][   T73]      do_syscall_64+0xc6/0x1e0
[ 4936.580298][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4936.580298][   T73] 
[ 4936.582566][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4936.582566][   T73]      netdev_get_by_index+0x5e/0x80
[ 4936.582566][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4936.582566][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4936.582566][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4936.582566][   T73]      ipv6_add_addr+0x411/0x2000
[ 4936.582566][   T73]      inet6_addr_add+0x30e/0xa40
[ 4936.582566][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4936.582566][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4936.582566][   T73]      netlink_rcv_skb+0x130/0x360
[ 4936.582566][   T73]      netlink_unicast+0x449/0x710
[ 4936.582566][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4936.582566][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4936.582566][   T73]      ___sys_sendmsg+0xee/0x170
[ 4936.582566][   T73]      __sys_sendmsg+0xcd/0x170
[ 4936.582566][   T73]      do_syscall_64+0xc6/0x1e0
[ 4936.582566][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4936.582566][   T73] 
[ 4936.584809][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4936.584809][   T73]      netdev_get_by_index+0x5e/0x80
[ 4936.584809][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4936.584809][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4936.584809][   T73]      ip6_route_add+0x1c/0x140
[ 4936.584809][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4936.584809][   T73]      addrconf_add_dev+0xe2/0x170
[ 4936.584809][   T73]      inet6_addr_add+0x12f/0xa40
[ 4936.584809][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4936.584809][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4936.584809][   T73]      netlink_rcv_skb+0x130/0x360
[ 4936.584809][   T73]      netlink_unicast+0x449/0x710
[ 4936.584809][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4936.584809][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4936.584809][   T73]      ___sys_sendmsg+0xee/0x170
[ 4936.584809][   T73]      __sys_sendmsg+0xcd/0x170
[ 4936.584809][   T73]      do_syscall_64+0xc6/0x1e0
[ 4936.584809][   T73] 
[ 4936.587030][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4936.587030][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4936.587030][   T73]      ipv6_find_idev+0x102/0x170
[ 4936.587030][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4936.587030][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4936.587030][   T73]      netlink_rcv_skb+0x130/0x360
[ 4936.587030][   T73]      netlink_unicast+0x449/0x710
[ 4936.587030][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4936.587030][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4936.587030][   T73]      ___sys_sendmsg+0xee/0x170
[ 4936.587030][   T73]      __sys_sendmsg+0xcd/0x170
[ 4936.587030][   T73]      do_syscall_64+0xc6/0x1e0
[ 4936.587030][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4936.587030][   T73] 
[ 4936.588774][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4936.588774][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4936.588774][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4936.588774][   T73]      ipv6_find_idev+0x102/0x170
[ 4936.588774][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4936.588774][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4936.588774][   T73]      netlink_rcv_skb+0x130/0x360
[ 4936.588774][   T73]      netlink_unicast+0x449/0x710
[ 4936.588774][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4936.588774][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4936.588774][   T73]      ___sys_sendmsg+0xee/0x170
[ 4936.588774][   T73]      __sys_sendmsg+0xcd/0x170
[ 4936.588774][   T73]      do_syscall_64+0xc6/0x1e0
[ 4936.588774][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4936.588774][   T73] 
[ 4936.590680][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4936.590980][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4936.590980][   T73]      netdev_get_by_index+0x5e/0x80
[ 4936.590980][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4936.590980][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4936.590980][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4936.590980][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4936.590980][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4936.590980][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4936.590980][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4936.590980][   T73]      addrconf_dad_begin+0x310/0x670
[ 4936.590980][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4936.590980][   T73]      process_one_work+0x84d/0x18a0
[ 4936.590980][   T73]      worker_thread+0x587/0xd30
[ 4936.590980][   T73]      kthread+0x28a/0x350
[ 4936.590980][   T73]      ret_from_fork+0x31/0x70
[ 4936.590980][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4936.590980][   T73] 
[ 4936.593141][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4936.593141][   T73]      netdev_get_by_index+0x5e/0x80
[ 4936.593141][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4936.593141][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4936.593141][   T73]      ip6_route_add+0x1c/0x140
[ 4936.593141][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4936.593141][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4936.593141][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4936.593141][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4936.593141][   T73]      netlink_rcv_skb+0x130/0x360
[ 4936.593141][   T73]      netlink_unicast+0x449/0x710
[ 4936.593141][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4936.593141][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4936.593141][   T73]      ___sys_sendmsg+0xee/0x170
[ 4936.593141][   T73]      __sys_sendmsg+0xcd/0x170
[ 4936.593141][   T73]      do_syscall_64+0xc6/0x1e0
[ 4936.593141][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4936.593141][   T73] 
[ 4936.595403][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4936.595403][   T73]      netdev_get_by_index+0x5e/0x80
[ 4936.595403][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4936.595403][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4936.595403][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4936.595403][   T73]      ipv6_add_addr+0x411/0x2000
[ 4936.595403][   T73]      inet6_addr_add+0x30e/0xa40
[ 4936.595403][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4936.595403][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4936.595403][   T73]      netlink_rcv_skb+0x130/0x360
[ 4936.595403][   T73]      netlink_unicast+0x449/0x710
[ 4936.595403][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4936.595403][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4936.595403][   T73]      ___sys_sendmsg+0xee/0x170
[ 4936.595403][   T73]      __sys_sendmsg+0xcd/0x170
[ 4936.595403][   T73]      do_syscall_64+0xc6/0x1e0
[ 4936.595403][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4936.595403][   T73] 
[ 4936.597653][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4936.597653][   T73]      netdev_get_by_index+0x5e/0x80
[ 4936.597653][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4936.597653][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4936.597653][   T73]      ip6_route_add+0x1c/0x140
[ 4936.597653][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4936.597653][   T73]      addrconf_add_dev+0xe2/0x170
[ 4936.597653][   T73]      inet6_addr_add+0x12f/0xa40
[ 4936.597653][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4936.597653][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4936.597653][   T73]      netlink_rcv_skb+0x130/0x360
[ 4936.597653][   T73]      netlink_unicast+0x449/0x710
[ 4936.597653][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4936.597653][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4936.597653][   T73]      ___sys_sendmsg+0xee/0x170
[ 4936.597653][   T73]      __sys_sendmsg+0xcd/0x170
[ 4936.597653][   T73]      do_syscall_64+0xc6/0x1e0
[ 4936.597653][   T73] 
[ 4936.599859][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4936.599859][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4936.599859][   T73]      ipv6_find_idev+0x102/0x170
[ 4936.599859][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4936.599859][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4936.599859][   T73]      netlink_rcv_skb+0x130/0x360
[ 4936.599859][   T73]      netlink_unicast+0x449/0x710
[ 4936.599859][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4936.599859][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4936.599859][   T73]      ___sys_sendmsg+0xee/0x170
[ 4936.599859][   T73]      __sys_sendmsg+0xcd/0x170
[ 4936.599859][   T73]      do_syscall_64+0xc6/0x1e0
[ 4936.599859][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4936.599859][   T73] 
[ 4936.601600][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4936.601600][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4936.601600][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4936.601600][   T73]      ipv6_find_idev+0x102/0x170
[ 4936.601600][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4936.601600][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4936.601600][   T73]      netlink_rcv_skb+0x130/0x360
[ 4936.601600][   T73]      netlink_unicast+0x449/0x710
[ 4936.601600][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4936.601600][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4936.601600][   T73]      ___sys_sendmsg+0xee/0x170
[ 4936.601600][   T73]      __sys_sendmsg+0xcd/0x170
[ 4936.601600][   T73]      do_syscall_64+0xc6/0x1e0
[ 4936.601600][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4936.601600][   T73] 
[ 4936.603485][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4936.603778][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4936.603778][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4936.603778][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4936.603778][   T73]      fib6_nh_init+0xa22/0x1580
[ 4936.603778][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4936.603778][   T73]      ip6_route_add+0x1c/0x140
[ 4936.603778][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4936.603778][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4936.603778][   T73]      netlink_rcv_skb+0x130/0x360
[ 4936.603778][   T73]      netlink_unicast+0x449/0x710
[ 4936.603778][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4936.603778][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4936.603778][   T73]      ___sys_sendmsg+0xee/0x170
[ 4936.603778][   T73]      __sys_sendmsg+0xcd/0x170
[ 4936.603778][   T73]      do_syscall_64+0xc6/0x1e0
[ 4936.603778][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4936.603778][   T73] 
[ 4936.606064][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4936.606064][   T73]      dst_init+0x84/0x4a0
[ 4936.606064][   T73]      dst_alloc+0x97/0x150
[ 4936.606064][   T73]      ip6_dst_alloc+0x23/0x90
[ 4936.606064][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4936.606064][   T73]      ip6_pol_route+0x56f/0x840
[ 4936.606064][   T73]      fib6_rule_lookup+0x456/0x630
[ 4936.606064][   T73]      ip6_route_input+0x59c/0xa50
[ 4936.606064][   T73]      ipv6_rcv+0x397/0x810
[ 4936.606064][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4936.606064][   T73]      process_backlog+0x101/0x620
[ 4936.606064][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4936.606064][   T73]      net_rx_action+0x495/0xbe0
[ 4936.606064][   T73]      __do_softirq+0x1b5/0x7f6
[ 4936.606064][   T73] 
[ 4936.608148][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4936.608148][   T73]      netdev_get_by_index+0x5e/0x80
[ 4936.608148][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4936.608148][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4936.608148][   T73]      ip6_route_add+0x1c/0x140
[ 4936.608148][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4936.608148][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4936.608148][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4936.608148][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4936.608148][   T73]      netlink_rcv_skb+0x130/0x360
[ 4936.608148][   T73]      netlink_unicast+0x449/0x710
[ 4936.608148][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4936.608148][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4936.608148][   T73]      ___sys_sendmsg+0xee/0x170
[ 4936.608148][   T73]      __sys_sendmsg+0xcd/0x170
[ 4936.608148][   T73]      do_syscall_64+0xc6/0x1e0
[ 4936.608148][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4936.608148][   T73] 
[ 4936.610648][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4936.610648][   T73]      netdev_get_by_index+0x5e/0x80
[ 4936.610648][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4936.610648][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4936.610648][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4936.610648][   T73]      ipv6_add_addr+0x411/0x2000
[ 4936.610648][   T73]      inet6_addr_add+0x30e/0xa40
[ 4936.610648][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4936.610648][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4936.610648][   T73]      netlink_rcv_skb+0x130/0x360
[ 4936.610648][   T73]      netlink_unicast+0x449/0x710
[ 4936.610648][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4936.610648][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4936.610648][   T73]      ___sys_sendmsg+0xee/0x170
[ 4936.610648][   T73]      __sys_sendmsg+0xcd/0x170
[ 4936.610648][   T73]      do_syscall_64+0xc6/0x1e0
[ 4936.610648][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4936.610648][   T73] 
[ 4936.613104][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4936.613104][   T73]      netdev_get_by_index+0x5e/0x80
[ 4936.613104][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4936.613104][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4936.613104][   T73]      ip6_route_add+0x1c/0x140
[ 4936.613104][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4936.613104][   T73]      addrconf_add_dev+0xe2/0x170
[ 4936.613104][   T73]      inet6_addr_add+0x12f/0xa40
[ 4936.613104][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4936.613104][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4936.613104][   T73]      netlink_rcv_skb+0x130/0x360
[ 4936.613104][   T73]      netlink_unicast+0x449/0x710
[ 4936.613104][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4936.613104][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4936.613104][   T73]      ___sys_sendmsg+0xee/0x170
[ 4936.613104][   T73]      __sys_sendmsg+0xcd/0x170
[ 4936.613104][   T73]      do_syscall_64+0xc6/0x1e0
[ 4936.613104][   T73] 
[ 4936.615573][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4936.615573][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4936.615573][   T73]      ipv6_find_idev+0x102/0x170
[ 4936.615573][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4936.615573][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4936.615573][   T73]      netlink_rcv_skb+0x130/0x360
[ 4936.615573][   T73]      netlink_unicast+0x449/0x710
[ 4936.615573][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4936.615573][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4936.615573][   T73]      ___sys_sendmsg+0xee/0x170
[ 4936.615573][   T73]      __sys_sendmsg+0xcd/0x170
[ 4936.615573][   T73]      do_syscall_64+0xc6/0x1e0
[ 4936.615573][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4936.615573][   T73] 
[ 4936.617602][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4936.617602][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4936.617602][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4936.617602][   T73]      ipv6_find_idev+0x102/0x170
[ 4936.617602][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4936.617602][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4936.617602][   T73]      netlink_rcv_skb+0x130/0x360
[ 4936.617602][   T73]      netlink_unicast+0x449/0x710
[ 4936.617602][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4936.617602][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4936.617602][   T73]      ___sys_sendmsg+0xee/0x170
[ 4936.617602][   T73]      __sys_sendmsg+0xcd/0x170
[ 4936.617602][   T73]      do_syscall_64+0xc6/0x1e0
[ 4936.617602][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4936.617602][   T73] 
[ 4936.619707][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4936.620070][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4936.620070][   T73]      netdev_get_by_index+0x5e/0x80
[ 4936.620070][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4936.620070][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4936.620070][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4936.620070][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4936.620070][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4936.620070][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4936.620070][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4936.620070][   T73]      addrconf_dad_begin+0x310/0x670
[ 4936.620070][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4936.620070][   T73]      process_one_work+0x84d/0x18a0
[ 4936.620070][   T73]      worker_thread+0x587/0xd30
[ 4936.620070][   T73]      kthread+0x28a/0x350
[ 4936.620070][   T73]      ret_from_fork+0x31/0x70
[ 4936.620070][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4936.620070][   T73] 
[ 4936.622399][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4936.622399][   T73]      netdev_get_by_index+0x5e/0x80
[ 4936.622399][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4936.622399][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4936.622399][   T73]      ip6_route_add+0x1c/0x140
[ 4936.622399][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4936.622399][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4936.622399][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4936.622399][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4936.622399][   T73]      netlink_rcv_skb+0x130/0x360
[ 4936.622399][   T73]      netlink_unicast+0x449/0x710
[ 4936.622399][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4936.622399][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4936.622399][   T73]      ___sys_sendmsg+0xee/0x170
[ 4936.622399][   T73]      __sys_sendmsg+0xcd/0x170
[ 4936.622399][   T73]      do_syscall_64+0xc6/0x1e0
[ 4936.622399][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4936.622399][   T73] 
[ 4936.624927][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4936.624927][   T73]      netdev_get_by_index+0x5e/0x80
[ 4936.624927][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4936.624927][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4936.624927][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4936.624927][   T73]      ipv6_add_addr+0x411/0x2000
[ 4936.624927][   T73]      inet6_addr_add+0x30e/0xa40
[ 4936.624927][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4936.624927][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4936.624927][   T73]      netlink_rcv_skb+0x130/0x360
[ 4936.624927][   T73]      netlink_unicast+0x449/0x710
[ 4936.624927][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4936.624927][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4936.624927][   T73]      ___sys_sendmsg+0xee/0x170
[ 4936.624927][   T73]      __sys_sendmsg+0xcd/0x170
[ 4936.624927][   T73]      do_syscall_64+0xc6/0x1e0
[ 4936.624927][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4936.624927][   T73] 
[ 4936.627451][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4936.627451][   T73]      netdev_get_by_index+0x5e/0x80
[ 4936.627451][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4936.627451][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4936.627451][   T73]      ip6_route_add+0x1c/0x140
[ 4936.627451][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4936.627451][   T73]      addrconf_add_dev+0xe2/0x170
[ 4936.627451][   T73]      inet6_addr_add+0x12f/0xa40
[ 4936.627451][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4936.627451][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4936.627451][   T73]      netlink_rcv_skb+0x130/0x360
[ 4936.627451][   T73]      netlink_unicast+0x449/0x710
[ 4936.627451][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4936.627451][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4936.627451][   T73]      ___sys_sendmsg+0xee/0x170
[ 4936.627451][   T73]      __sys_sendmsg+0xcd/0x170
[ 4936.627451][   T73]      do_syscall_64+0xc6/0x1e0
[ 4936.627451][   T73] 
[ 4936.629986][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4936.629986][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4936.629986][   T73]      ipv6_find_idev+0x102/0x170
[ 4936.629986][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4936.629986][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4936.629986][   T73]      netlink_rcv_skb+0x130/0x360
[ 4936.629986][   T73]      netlink_unicast+0x449/0x710
[ 4936.629986][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4936.629986][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4936.629986][   T73]      ___sys_sendmsg+0xee/0x170
[ 4936.629986][   T73]      __sys_sendmsg+0xcd/0x170
[ 4936.629986][   T73]      do_syscall_64+0xc6/0x1e0
[ 4936.629986][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4936.629986][   T73] 
[ 4936.631948][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4936.631948][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4936.631948][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4936.631948][   T73]      ipv6_find_idev+0x102/0x170
[ 4936.631948][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4936.631948][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4936.631948][   T73]      netlink_rcv_skb+0x130/0x360
[ 4936.631948][   T73]      netlink_unicast+0x449/0x710
[ 4936.631948][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4936.631948][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4936.631948][   T73]      ___sys_sendmsg+0xee/0x170
[ 4936.631948][   T73]      __sys_sendmsg+0xcd/0x170
[ 4936.631948][   T73]      do_syscall_64+0xc6/0x1e0
[ 4936.631948][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4936.631948][   T73] 
[ 4946.687799][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4946.688323][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4946.688323][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4946.688323][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4946.688323][   T73]      fib6_nh_init+0xa22/0x1580
[ 4946.688323][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4946.688323][   T73]      ip6_route_add+0x1c/0x140
[ 4946.688323][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4946.688323][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4946.688323][   T73]      netlink_rcv_skb+0x130/0x360
[ 4946.688323][   T73]      netlink_unicast+0x449/0x710
[ 4946.688323][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4946.688323][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4946.688323][   T73]      ___sys_sendmsg+0xee/0x170
[ 4946.688323][   T73]      __sys_sendmsg+0xcd/0x170
[ 4946.688323][   T73]      do_syscall_64+0xc6/0x1e0
[ 4946.688323][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4946.688323][   T73] 
[ 4946.690469][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4946.690469][   T73]      dst_init+0x84/0x4a0
[ 4946.690469][   T73]      dst_alloc+0x97/0x150
[ 4946.690469][   T73]      ip6_dst_alloc+0x23/0x90
[ 4946.690469][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4946.690469][   T73]      ip6_pol_route+0x56f/0x840
[ 4946.690469][   T73]      fib6_rule_lookup+0x456/0x630
[ 4946.690469][   T73]      ip6_route_input+0x59c/0xa50
[ 4946.690469][   T73]      ipv6_rcv+0x397/0x810
[ 4946.690469][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4946.690469][   T73]      process_backlog+0x101/0x620
[ 4946.690469][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4946.690469][   T73]      net_rx_action+0x495/0xbe0
[ 4946.690469][   T73]      __do_softirq+0x1b5/0x7f6
[ 4946.690469][   T73] 
[ 4946.692323][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4946.692323][   T73]      netdev_get_by_index+0x5e/0x80
[ 4946.692323][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4946.692323][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4946.692323][   T73]      ip6_route_add+0x1c/0x140
[ 4946.692323][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4946.692323][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4946.692323][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4946.692323][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4946.692323][   T73]      netlink_rcv_skb+0x130/0x360
[ 4946.692323][   T73]      netlink_unicast+0x449/0x710
[ 4946.692323][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4946.692323][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4946.692323][   T73]      ___sys_sendmsg+0xee/0x170
[ 4946.692323][   T73]      __sys_sendmsg+0xcd/0x170
[ 4946.692323][   T73]      do_syscall_64+0xc6/0x1e0
[ 4946.692323][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4946.692323][   T73] 
[ 4946.694557][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4946.694557][   T73]      netdev_get_by_index+0x5e/0x80
[ 4946.694557][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4946.694557][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4946.694557][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4946.694557][   T73]      ipv6_add_addr+0x411/0x2000
[ 4946.694557][   T73]      inet6_addr_add+0x30e/0xa40
[ 4946.694557][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4946.694557][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4946.694557][   T73]      netlink_rcv_skb+0x130/0x360
[ 4946.694557][   T73]      netlink_unicast+0x449/0x710
[ 4946.694557][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4946.694557][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4946.694557][   T73]      ___sys_sendmsg+0xee/0x170
[ 4946.694557][   T73]      __sys_sendmsg+0xcd/0x170
[ 4946.694557][   T73]      do_syscall_64+0xc6/0x1e0
[ 4946.694557][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4946.694557][   T73] 
[ 4946.696823][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4946.696823][   T73]      netdev_get_by_index+0x5e/0x80
[ 4946.696823][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4946.696823][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4946.696823][   T73]      ip6_route_add+0x1c/0x140
[ 4946.696823][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4946.696823][   T73]      addrconf_add_dev+0xe2/0x170
[ 4946.696823][   T73]      inet6_addr_add+0x12f/0xa40
[ 4946.696823][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4946.696823][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4946.696823][   T73]      netlink_rcv_skb+0x130/0x360
[ 4946.696823][   T73]      netlink_unicast+0x449/0x710
[ 4946.696823][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4946.696823][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4946.696823][   T73]      ___sys_sendmsg+0xee/0x170
[ 4946.696823][   T73]      __sys_sendmsg+0xcd/0x170
[ 4946.696823][   T73]      do_syscall_64+0xc6/0x1e0
[ 4946.696823][   T73] 
[ 4946.699026][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4946.699026][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4946.699026][   T73]      ipv6_find_idev+0x102/0x170
[ 4946.699026][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4946.699026][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4946.699026][   T73]      netlink_rcv_skb+0x130/0x360
[ 4946.699026][   T73]      netlink_unicast+0x449/0x710
[ 4946.699026][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4946.699026][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4946.699026][   T73]      ___sys_sendmsg+0xee/0x170
[ 4946.699026][   T73]      __sys_sendmsg+0xcd/0x170
[ 4946.699026][   T73]      do_syscall_64+0xc6/0x1e0
[ 4946.699026][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4946.699026][   T73] 
[ 4946.700736][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4946.700736][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4946.700736][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4946.700736][   T73]      ipv6_find_idev+0x102/0x170
[ 4946.700736][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4946.700736][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4946.700736][   T73]      netlink_rcv_skb+0x130/0x360
[ 4946.700736][   T73]      netlink_unicast+0x449/0x710
[ 4946.700736][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4946.700736][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4946.700736][   T73]      ___sys_sendmsg+0xee/0x170
[ 4946.700736][   T73]      __sys_sendmsg+0xcd/0x170
[ 4946.700736][   T73]      do_syscall_64+0xc6/0x1e0
[ 4946.700736][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4946.700736][   T73] 
[ 4946.702661][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4946.702973][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4946.702973][   T73]      netdev_get_by_index+0x5e/0x80
[ 4946.702973][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4946.702973][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4946.702973][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4946.702973][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4946.702973][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4946.702973][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4946.702973][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4946.702973][   T73]      addrconf_dad_begin+0x310/0x670
[ 4946.702973][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4946.702973][   T73]      process_one_work+0x84d/0x18a0
[ 4946.702973][   T73]      worker_thread+0x587/0xd30
[ 4946.702973][   T73]      kthread+0x28a/0x350
[ 4946.702973][   T73]      ret_from_fork+0x31/0x70
[ 4946.702973][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4946.702973][   T73] 
[ 4946.705155][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4946.705155][   T73]      netdev_get_by_index+0x5e/0x80
[ 4946.705155][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4946.705155][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4946.705155][   T73]      ip6_route_add+0x1c/0x140
[ 4946.705155][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4946.705155][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4946.705155][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4946.705155][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4946.705155][   T73]      netlink_rcv_skb+0x130/0x360
[ 4946.705155][   T73]      netlink_unicast+0x449/0x710
[ 4946.705155][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4946.705155][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4946.705155][   T73]      ___sys_sendmsg+0xee/0x170
[ 4946.705155][   T73]      __sys_sendmsg+0xcd/0x170
[ 4946.705155][   T73]      do_syscall_64+0xc6/0x1e0
[ 4946.705155][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4946.705155][   T73] 
[ 4946.707405][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4946.707405][   T73]      netdev_get_by_index+0x5e/0x80
[ 4946.707405][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4946.707405][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4946.707405][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4946.707405][   T73]      ipv6_add_addr+0x411/0x2000
[ 4946.707405][   T73]      inet6_addr_add+0x30e/0xa40
[ 4946.707405][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4946.707405][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4946.707405][   T73]      netlink_rcv_skb+0x130/0x360
[ 4946.707405][   T73]      netlink_unicast+0x449/0x710
[ 4946.707405][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4946.707405][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4946.707405][   T73]      ___sys_sendmsg+0xee/0x170
[ 4946.707405][   T73]      __sys_sendmsg+0xcd/0x170
[ 4946.707405][   T73]      do_syscall_64+0xc6/0x1e0
[ 4946.707405][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4946.707405][   T73] 
[ 4946.709685][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4946.709685][   T73]      netdev_get_by_index+0x5e/0x80
[ 4946.709685][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4946.709685][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4946.709685][   T73]      ip6_route_add+0x1c/0x140
[ 4946.709685][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4946.709685][   T73]      addrconf_add_dev+0xe2/0x170
[ 4946.709685][   T73]      inet6_addr_add+0x12f/0xa40
[ 4946.709685][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4946.709685][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4946.709685][   T73]      netlink_rcv_skb+0x130/0x360
[ 4946.709685][   T73]      netlink_unicast+0x449/0x710
[ 4946.709685][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4946.709685][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4946.709685][   T73]      ___sys_sendmsg+0xee/0x170
[ 4946.709685][   T73]      __sys_sendmsg+0xcd/0x170
[ 4946.709685][   T73]      do_syscall_64+0xc6/0x1e0
[ 4946.709685][   T73] 
[ 4946.711915][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4946.711915][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4946.711915][   T73]      ipv6_find_idev+0x102/0x170
[ 4946.711915][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4946.711915][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4946.711915][   T73]      netlink_rcv_skb+0x130/0x360
[ 4946.711915][   T73]      netlink_unicast+0x449/0x710
[ 4946.711915][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4946.711915][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4946.711915][   T73]      ___sys_sendmsg+0xee/0x170
[ 4946.711915][   T73]      __sys_sendmsg+0xcd/0x170
[ 4946.711915][   T73]      do_syscall_64+0xc6/0x1e0
[ 4946.711915][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4946.711915][   T73] 
[ 4946.713662][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4946.713662][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4946.713662][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4946.713662][   T73]      ipv6_find_idev+0x102/0x170
[ 4946.713662][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4946.713662][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4946.713662][   T73]      netlink_rcv_skb+0x130/0x360
[ 4946.713662][   T73]      netlink_unicast+0x449/0x710
[ 4946.713662][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4946.713662][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4946.713662][   T73]      ___sys_sendmsg+0xee/0x170
[ 4946.713662][   T73]      __sys_sendmsg+0xcd/0x170
[ 4946.713662][   T73]      do_syscall_64+0xc6/0x1e0
[ 4946.713662][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4946.713662][   T73] 
[ 4946.715547][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4946.715839][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4946.715839][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4946.715839][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4946.715839][   T73]      fib6_nh_init+0xa22/0x1580
[ 4946.715839][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4946.715839][   T73]      ip6_route_add+0x1c/0x140
[ 4946.715839][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4946.715839][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4946.715839][   T73]      netlink_rcv_skb+0x130/0x360
[ 4946.715839][   T73]      netlink_unicast+0x449/0x710
[ 4946.715839][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4946.715839][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4946.715839][   T73]      ___sys_sendmsg+0xee/0x170
[ 4946.715839][   T73]      __sys_sendmsg+0xcd/0x170
[ 4946.715839][   T73]      do_syscall_64+0xc6/0x1e0
[ 4946.715839][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4946.715839][   T73] 
[ 4946.718133][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4946.718133][   T73]      dst_init+0x84/0x4a0
[ 4946.718133][   T73]      dst_alloc+0x97/0x150
[ 4946.718133][   T73]      ip6_dst_alloc+0x23/0x90
[ 4946.718133][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4946.718133][   T73]      ip6_pol_route+0x56f/0x840
[ 4946.718133][   T73]      fib6_rule_lookup+0x456/0x630
[ 4946.718133][   T73]      ip6_route_input+0x59c/0xa50
[ 4946.718133][   T73]      ipv6_rcv+0x397/0x810
[ 4946.718133][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4946.718133][   T73]      process_backlog+0x101/0x620
[ 4946.718133][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4946.718133][   T73]      net_rx_action+0x495/0xbe0
[ 4946.718133][   T73]      __do_softirq+0x1b5/0x7f6
[ 4946.718133][   T73] 
[ 4946.720127][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4946.720127][   T73]      netdev_get_by_index+0x5e/0x80
[ 4946.720127][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4946.720127][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4946.720127][   T73]      ip6_route_add+0x1c/0x140
[ 4946.720127][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4946.720127][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4946.720127][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4946.720127][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4946.720127][   T73]      netlink_rcv_skb+0x130/0x360
[ 4946.720127][   T73]      netlink_unicast+0x449/0x710
[ 4946.720127][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4946.720127][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4946.720127][   T73]      ___sys_sendmsg+0xee/0x170
[ 4946.720127][   T73]      __sys_sendmsg+0xcd/0x170
[ 4946.720127][   T73]      do_syscall_64+0xc6/0x1e0
[ 4946.720127][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4946.720127][   T73] 
[ 4946.722628][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4946.722628][   T73]      netdev_get_by_index+0x5e/0x80
[ 4946.722628][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4946.722628][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4946.722628][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4946.722628][   T73]      ipv6_add_addr+0x411/0x2000
[ 4946.722628][   T73]      inet6_addr_add+0x30e/0xa40
[ 4946.722628][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4946.722628][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4946.722628][   T73]      netlink_rcv_skb+0x130/0x360
[ 4946.722628][   T73]      netlink_unicast+0x449/0x710
[ 4946.722628][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4946.722628][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4946.722628][   T73]      ___sys_sendmsg+0xee/0x170
[ 4946.722628][   T73]      __sys_sendmsg+0xcd/0x170
[ 4946.722628][   T73]      do_syscall_64+0xc6/0x1e0
[ 4946.722628][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4946.722628][   T73] 
[ 4946.725117][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4946.725117][   T73]      netdev_get_by_index+0x5e/0x80
[ 4946.725117][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4946.725117][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4946.725117][   T73]      ip6_route_add+0x1c/0x140
[ 4946.725117][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4946.725117][   T73]      addrconf_add_dev+0xe2/0x170
[ 4946.725117][   T73]      inet6_addr_add+0x12f/0xa40
[ 4946.725117][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4946.725117][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4946.725117][   T73]      netlink_rcv_skb+0x130/0x360
[ 4946.725117][   T73]      netlink_unicast+0x449/0x710
[ 4946.725117][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4946.725117][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4946.725117][   T73]      ___sys_sendmsg+0xee/0x170
[ 4946.725117][   T73]      __sys_sendmsg+0xcd/0x170
[ 4946.725117][   T73]      do_syscall_64+0xc6/0x1e0
[ 4946.725117][   T73] 
[ 4946.727588][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4946.727588][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4946.727588][   T73]      ipv6_find_idev+0x102/0x170
[ 4946.727588][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4946.727588][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4946.727588][   T73]      netlink_rcv_skb+0x130/0x360
[ 4946.727588][   T73]      netlink_unicast+0x449/0x710
[ 4946.727588][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4946.727588][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4946.727588][   T73]      ___sys_sendmsg+0xee/0x170
[ 4946.727588][   T73]      __sys_sendmsg+0xcd/0x170
[ 4946.727588][   T73]      do_syscall_64+0xc6/0x1e0
[ 4946.727588][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4946.727588][   T73] 
[ 4946.729519][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4946.729519][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4946.729519][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4946.729519][   T73]      ipv6_find_idev+0x102/0x170
[ 4946.729519][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4946.729519][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4946.729519][   T73]      netlink_rcv_skb+0x130/0x360
[ 4946.729519][   T73]      netlink_unicast+0x449/0x710
[ 4946.729519][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4946.729519][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4946.729519][   T73]      ___sys_sendmsg+0xee/0x170
[ 4946.729519][   T73]      __sys_sendmsg+0xcd/0x170
[ 4946.729519][   T73]      do_syscall_64+0xc6/0x1e0
[ 4946.729519][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4946.729519][   T73] 
[ 4946.731576][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4946.732363][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4946.732363][   T73]      netdev_get_by_index+0x5e/0x80
[ 4946.732363][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4946.732363][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4946.732363][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4946.732363][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4946.732363][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4946.732363][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4946.732363][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4946.732363][   T73]      addrconf_dad_begin+0x310/0x670
[ 4946.732363][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4946.732363][   T73]      process_one_work+0x84d/0x18a0
[ 4946.732363][   T73]      worker_thread+0x587/0xd30
[ 4946.732363][   T73]      kthread+0x28a/0x350
[ 4946.732363][   T73]      ret_from_fork+0x31/0x70
[ 4946.732363][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4946.732363][   T73] 
[ 4946.734525][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4946.734525][   T73]      netdev_get_by_index+0x5e/0x80
[ 4946.734525][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4946.734525][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4946.734525][   T73]      ip6_route_add+0x1c/0x140
[ 4946.734525][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4946.734525][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4946.734525][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4946.734525][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4946.734525][   T73]      netlink_rcv_skb+0x130/0x360
[ 4946.734525][   T73]      netlink_unicast+0x449/0x710
[ 4946.734525][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4946.734525][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4946.734525][   T73]      ___sys_sendmsg+0xee/0x170
[ 4946.734525][   T73]      __sys_sendmsg+0xcd/0x170
[ 4946.734525][   T73]      do_syscall_64+0xc6/0x1e0
[ 4946.734525][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4946.734525][   T73] 
[ 4946.736818][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4946.736818][   T73]      netdev_get_by_index+0x5e/0x80
[ 4946.736818][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4946.736818][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4946.736818][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4946.736818][   T73]      ipv6_add_addr+0x411/0x2000
[ 4946.736818][   T73]      inet6_addr_add+0x30e/0xa40
[ 4946.736818][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4946.736818][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4946.736818][   T73]      netlink_rcv_skb+0x130/0x360
[ 4946.736818][   T73]      netlink_unicast+0x449/0x710
[ 4946.736818][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4946.736818][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4946.736818][   T73]      ___sys_sendmsg+0xee/0x170
[ 4946.736818][   T73]      __sys_sendmsg+0xcd/0x170
[ 4946.736818][   T73]      do_syscall_64+0xc6/0x1e0
[ 4946.736818][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4946.736818][   T73] 
[ 4946.739932][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4946.739932][   T73]      netdev_get_by_index+0x5e/0x80
[ 4946.739932][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4946.739932][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4946.739932][   T73]      ip6_route_add+0x1c/0x140
[ 4946.739932][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4946.739932][   T73]      addrconf_add_dev+0xe2/0x170
[ 4946.739932][   T73]      inet6_addr_add+0x12f/0xa40
[ 4946.739932][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4946.739932][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4946.739932][   T73]      netlink_rcv_skb+0x130/0x360
[ 4946.739932][   T73]      netlink_unicast+0x449/0x710
[ 4946.739932][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4946.739932][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4946.739932][   T73]      ___sys_sendmsg+0xee/0x170
[ 4946.739932][   T73]      __sys_sendmsg+0xcd/0x170
[ 4946.739932][   T73]      do_syscall_64+0xc6/0x1e0
[ 4946.739932][   T73] 
[ 4946.742387][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4946.742387][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4946.742387][   T73]      ipv6_find_idev+0x102/0x170
[ 4946.742387][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4946.742387][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4946.742387][   T73]      netlink_rcv_skb+0x130/0x360
[ 4946.742387][   T73]      netlink_unicast+0x449/0x710
[ 4946.742387][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4946.742387][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4946.742387][   T73]      ___sys_sendmsg+0xee/0x170
[ 4946.742387][   T73]      __sys_sendmsg+0xcd/0x170
[ 4946.742387][   T73]      do_syscall_64+0xc6/0x1e0
[ 4946.742387][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4946.742387][   T73] 
[ 4946.744311][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4946.744311][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4946.744311][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4946.744311][   T73]      ipv6_find_idev+0x102/0x170
[ 4946.744311][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4946.744311][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4946.744311][   T73]      netlink_rcv_skb+0x130/0x360
[ 4946.744311][   T73]      netlink_unicast+0x449/0x710
[ 4946.744311][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4946.744311][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4946.744311][   T73]      ___sys_sendmsg+0xee/0x170
[ 4946.744311][   T73]      __sys_sendmsg+0xcd/0x170
[ 4946.744311][   T73]      do_syscall_64+0xc6/0x1e0
[ 4946.744311][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4946.744311][   T73] 
[ 4956.895753][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4956.896252][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4956.896252][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4956.896252][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4956.896252][   T73]      fib6_nh_init+0xa22/0x1580
[ 4956.896252][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4956.896252][   T73]      ip6_route_add+0x1c/0x140
[ 4956.896252][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4956.896252][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4956.896252][   T73]      netlink_rcv_skb+0x130/0x360
[ 4956.896252][   T73]      netlink_unicast+0x449/0x710
[ 4956.896252][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4956.896252][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4956.896252][   T73]      ___sys_sendmsg+0xee/0x170
[ 4956.896252][   T73]      __sys_sendmsg+0xcd/0x170
[ 4956.896252][   T73]      do_syscall_64+0xc6/0x1e0
[ 4956.896252][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4956.896252][   T73] 
[ 4956.898164][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4956.898164][   T73]      dst_init+0x84/0x4a0
[ 4956.898164][   T73]      dst_alloc+0x97/0x150
[ 4956.898164][   T73]      ip6_dst_alloc+0x23/0x90
[ 4956.898164][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4956.898164][   T73]      ip6_pol_route+0x56f/0x840
[ 4956.898164][   T73]      fib6_rule_lookup+0x456/0x630
[ 4956.898164][   T73]      ip6_route_input+0x59c/0xa50
[ 4956.898164][   T73]      ipv6_rcv+0x397/0x810
[ 4956.898164][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4956.898164][   T73]      process_backlog+0x101/0x620
[ 4956.898164][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4956.898164][   T73]      net_rx_action+0x495/0xbe0
[ 4956.898164][   T73]      __do_softirq+0x1b5/0x7f6
[ 4956.898164][   T73] 
[ 4956.899808][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4956.899808][   T73]      netdev_get_by_index+0x5e/0x80
[ 4956.899808][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4956.899808][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4956.899808][   T73]      ip6_route_add+0x1c/0x140
[ 4956.899808][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4956.899808][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4956.899808][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4956.899808][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4956.899808][   T73]      netlink_rcv_skb+0x130/0x360
[ 4956.899808][   T73]      netlink_unicast+0x449/0x710
[ 4956.899808][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4956.899808][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4956.899808][   T73]      ___sys_sendmsg+0xee/0x170
[ 4956.899808][   T73]      __sys_sendmsg+0xcd/0x170
[ 4956.899808][   T73]      do_syscall_64+0xc6/0x1e0
[ 4956.899808][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4956.899808][   T73] 
[ 4956.901829][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4956.901829][   T73]      netdev_get_by_index+0x5e/0x80
[ 4956.901829][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4956.901829][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4956.901829][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4956.901829][   T73]      ipv6_add_addr+0x411/0x2000
[ 4956.901829][   T73]      inet6_addr_add+0x30e/0xa40
[ 4956.901829][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4956.901829][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4956.901829][   T73]      netlink_rcv_skb+0x130/0x360
[ 4956.901829][   T73]      netlink_unicast+0x449/0x710
[ 4956.901829][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4956.901829][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4956.901829][   T73]      ___sys_sendmsg+0xee/0x170
[ 4956.901829][   T73]      __sys_sendmsg+0xcd/0x170
[ 4956.901829][   T73]      do_syscall_64+0xc6/0x1e0
[ 4956.901829][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4956.901829][   T73] 
[ 4956.903844][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4956.903844][   T73]      netdev_get_by_index+0x5e/0x80
[ 4956.903844][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4956.903844][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4956.903844][   T73]      ip6_route_add+0x1c/0x140
[ 4956.903844][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4956.903844][   T73]      addrconf_add_dev+0xe2/0x170
[ 4956.903844][   T73]      inet6_addr_add+0x12f/0xa40
[ 4956.903844][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4956.903844][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4956.903844][   T73]      netlink_rcv_skb+0x130/0x360
[ 4956.903844][   T73]      netlink_unicast+0x449/0x710
[ 4956.903844][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4956.903844][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4956.903844][   T73]      ___sys_sendmsg+0xee/0x170
[ 4956.903844][   T73]      __sys_sendmsg+0xcd/0x170
[ 4956.903844][   T73]      do_syscall_64+0xc6/0x1e0
[ 4956.903844][   T73] 
[ 4956.905818][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4956.905818][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4956.905818][   T73]      ipv6_find_idev+0x102/0x170
[ 4956.905818][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4956.905818][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4956.905818][   T73]      netlink_rcv_skb+0x130/0x360
[ 4956.905818][   T73]      netlink_unicast+0x449/0x710
[ 4956.905818][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4956.905818][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4956.905818][   T73]      ___sys_sendmsg+0xee/0x170
[ 4956.905818][   T73]      __sys_sendmsg+0xcd/0x170
[ 4956.905818][   T73]      do_syscall_64+0xc6/0x1e0
[ 4956.905818][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4956.905818][   T73] 
[ 4956.907366][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4956.907366][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4956.907366][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4956.907366][   T73]      ipv6_find_idev+0x102/0x170
[ 4956.907366][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4956.907366][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4956.907366][   T73]      netlink_rcv_skb+0x130/0x360
[ 4956.907366][   T73]      netlink_unicast+0x449/0x710
[ 4956.907366][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4956.907366][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4956.907366][   T73]      ___sys_sendmsg+0xee/0x170
[ 4956.907366][   T73]      __sys_sendmsg+0xcd/0x170
[ 4956.907366][   T73]      do_syscall_64+0xc6/0x1e0
[ 4956.907366][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4956.907366][   T73] 
[ 4956.909057][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4956.909362][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4956.909362][   T73]      netdev_get_by_index+0x5e/0x80
[ 4956.909362][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4956.909362][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4956.909362][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4956.909362][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4956.909362][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4956.909362][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4956.909362][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4956.909362][   T73]      addrconf_dad_begin+0x310/0x670
[ 4956.909362][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4956.909362][   T73]      process_one_work+0x84d/0x18a0
[ 4956.909362][   T73]      worker_thread+0x587/0xd30
[ 4956.909362][   T73]      kthread+0x28a/0x350
[ 4956.909362][   T73]      ret_from_fork+0x31/0x70
[ 4956.909362][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4956.909362][   T73] 
[ 4956.911280][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4956.911280][   T73]      netdev_get_by_index+0x5e/0x80
[ 4956.911280][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4956.911280][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4956.911280][   T73]      ip6_route_add+0x1c/0x140
[ 4956.911280][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4956.911280][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4956.911280][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4956.911280][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4956.911280][   T73]      netlink_rcv_skb+0x130/0x360
[ 4956.911280][   T73]      netlink_unicast+0x449/0x710
[ 4956.911280][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4956.911280][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4956.911280][   T73]      ___sys_sendmsg+0xee/0x170
[ 4956.911280][   T73]      __sys_sendmsg+0xcd/0x170
[ 4956.911280][   T73]      do_syscall_64+0xc6/0x1e0
[ 4956.911280][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4956.911280][   T73] 
[ 4956.915805][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4956.915805][   T73]      netdev_get_by_index+0x5e/0x80
[ 4956.915805][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4956.915805][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4956.915805][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4956.915805][   T73]      ipv6_add_addr+0x411/0x2000
[ 4956.915805][   T73]      inet6_addr_add+0x30e/0xa40
[ 4956.915805][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4956.915805][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4956.915805][   T73]      netlink_rcv_skb+0x130/0x360
[ 4956.915805][   T73]      netlink_unicast+0x449/0x710
[ 4956.915805][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4956.915805][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4956.915805][   T73]      ___sys_sendmsg+0xee/0x170
[ 4956.915805][   T73]      __sys_sendmsg+0xcd/0x170
[ 4956.915805][   T73]      do_syscall_64+0xc6/0x1e0
[ 4956.915805][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4956.915805][   T73] 
[ 4956.917812][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4956.917812][   T73]      netdev_get_by_index+0x5e/0x80
[ 4956.917812][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4956.917812][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4956.917812][   T73]      ip6_route_add+0x1c/0x140
[ 4956.917812][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4956.917812][   T73]      addrconf_add_dev+0xe2/0x170
[ 4956.917812][   T73]      inet6_addr_add+0x12f/0xa40
[ 4956.917812][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4956.917812][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4956.917812][   T73]      netlink_rcv_skb+0x130/0x360
[ 4956.917812][   T73]      netlink_unicast+0x449/0x710
[ 4956.917812][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4956.917812][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4956.917812][   T73]      ___sys_sendmsg+0xee/0x170
[ 4956.917812][   T73]      __sys_sendmsg+0xcd/0x170
[ 4956.917812][   T73]      do_syscall_64+0xc6/0x1e0
[ 4956.917812][   T73] 
[ 4956.919804][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4956.919804][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4956.919804][   T73]      ipv6_find_idev+0x102/0x170
[ 4956.919804][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4956.919804][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4956.919804][   T73]      netlink_rcv_skb+0x130/0x360
[ 4956.919804][   T73]      netlink_unicast+0x449/0x710
[ 4956.919804][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4956.919804][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4956.919804][   T73]      ___sys_sendmsg+0xee/0x170
[ 4956.919804][   T73]      __sys_sendmsg+0xcd/0x170
[ 4956.919804][   T73]      do_syscall_64+0xc6/0x1e0
[ 4956.919804][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4956.919804][   T73] 
[ 4956.921351][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4956.921351][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4956.921351][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4956.921351][   T73]      ipv6_find_idev+0x102/0x170
[ 4956.921351][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4956.921351][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4956.921351][   T73]      netlink_rcv_skb+0x130/0x360
[ 4956.921351][   T73]      netlink_unicast+0x449/0x710
[ 4956.921351][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4956.921351][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4956.921351][   T73]      ___sys_sendmsg+0xee/0x170
[ 4956.921351][   T73]      __sys_sendmsg+0xcd/0x170
[ 4956.921351][   T73]      do_syscall_64+0xc6/0x1e0
[ 4956.921351][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4956.921351][   T73] 
[ 4956.923043][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4956.923341][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4956.923341][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4956.923341][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4956.923341][   T73]      fib6_nh_init+0xa22/0x1580
[ 4956.923341][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4956.923341][   T73]      ip6_route_add+0x1c/0x140
[ 4956.923341][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4956.923341][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4956.923341][   T73]      netlink_rcv_skb+0x130/0x360
[ 4956.923341][   T73]      netlink_unicast+0x449/0x710
[ 4956.923341][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4956.923341][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4956.923341][   T73]      ___sys_sendmsg+0xee/0x170
[ 4956.923341][   T73]      __sys_sendmsg+0xcd/0x170
[ 4956.923341][   T73]      do_syscall_64+0xc6/0x1e0
[ 4956.923341][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4956.923341][   T73] 
[ 4956.925426][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4956.925426][   T73]      dst_init+0x84/0x4a0
[ 4956.925426][   T73]      dst_alloc+0x97/0x150
[ 4956.925426][   T73]      ip6_dst_alloc+0x23/0x90
[ 4956.925426][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4956.925426][   T73]      ip6_pol_route+0x56f/0x840
[ 4956.925426][   T73]      fib6_rule_lookup+0x456/0x630
[ 4956.925426][   T73]      ip6_route_input+0x59c/0xa50
[ 4956.925426][   T73]      ipv6_rcv+0x397/0x810
[ 4956.925426][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4956.925426][   T73]      process_backlog+0x101/0x620
[ 4956.925426][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4956.925426][   T73]      net_rx_action+0x495/0xbe0
[ 4956.925426][   T73]      __do_softirq+0x1b5/0x7f6
[ 4956.925426][   T73] 
[ 4956.927248][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4956.927248][   T73]      netdev_get_by_index+0x5e/0x80
[ 4956.927248][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4956.927248][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4956.927248][   T73]      ip6_route_add+0x1c/0x140
[ 4956.927248][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4956.927248][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4956.927248][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4956.927248][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4956.927248][   T73]      netlink_rcv_skb+0x130/0x360
[ 4956.927248][   T73]      netlink_unicast+0x449/0x710
[ 4956.927248][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4956.927248][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4956.927248][   T73]      ___sys_sendmsg+0xee/0x170
[ 4956.927248][   T73]      __sys_sendmsg+0xcd/0x170
[ 4956.927248][   T73]      do_syscall_64+0xc6/0x1e0
[ 4956.927248][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4956.927248][   T73] 
[ 4956.929519][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4956.929519][   T73]      netdev_get_by_index+0x5e/0x80
[ 4956.929519][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4956.929519][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4956.929519][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4956.929519][   T73]      ipv6_add_addr+0x411/0x2000
[ 4956.929519][   T73]      inet6_addr_add+0x30e/0xa40
[ 4956.929519][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4956.929519][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4956.929519][   T73]      netlink_rcv_skb+0x130/0x360
[ 4956.929519][   T73]      netlink_unicast+0x449/0x710
[ 4956.929519][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4956.929519][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4956.929519][   T73]      ___sys_sendmsg+0xee/0x170
[ 4956.929519][   T73]      __sys_sendmsg+0xcd/0x170
[ 4956.929519][   T73]      do_syscall_64+0xc6/0x1e0
[ 4956.929519][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4956.929519][   T73] 
[ 4956.931783][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4956.931783][   T73]      netdev_get_by_index+0x5e/0x80
[ 4956.931783][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4956.931783][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4956.931783][   T73]      ip6_route_add+0x1c/0x140
[ 4956.931783][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4956.931783][   T73]      addrconf_add_dev+0xe2/0x170
[ 4956.931783][   T73]      inet6_addr_add+0x12f/0xa40
[ 4956.931783][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4956.931783][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4956.931783][   T73]      netlink_rcv_skb+0x130/0x360
[ 4956.931783][   T73]      netlink_unicast+0x449/0x710
[ 4956.931783][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4956.931783][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4956.931783][   T73]      ___sys_sendmsg+0xee/0x170
[ 4956.931783][   T73]      __sys_sendmsg+0xcd/0x170
[ 4956.931783][   T73]      do_syscall_64+0xc6/0x1e0
[ 4956.931783][   T73] 
[ 4956.933952][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4956.933952][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4956.933952][   T73]      ipv6_find_idev+0x102/0x170
[ 4956.933952][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4956.933952][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4956.933952][   T73]      netlink_rcv_skb+0x130/0x360
[ 4956.933952][   T73]      netlink_unicast+0x449/0x710
[ 4956.933952][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4956.933952][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4956.933952][   T73]      ___sys_sendmsg+0xee/0x170
[ 4956.933952][   T73]      __sys_sendmsg+0xcd/0x170
[ 4956.933952][   T73]      do_syscall_64+0xc6/0x1e0
[ 4956.933952][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4956.933952][   T73] 
[ 4956.935678][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4956.935678][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4956.935678][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4956.935678][   T73]      ipv6_find_idev+0x102/0x170
[ 4956.935678][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4956.935678][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4956.935678][   T73]      netlink_rcv_skb+0x130/0x360
[ 4956.935678][   T73]      netlink_unicast+0x449/0x710
[ 4956.935678][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4956.935678][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4956.935678][   T73]      ___sys_sendmsg+0xee/0x170
[ 4956.935678][   T73]      __sys_sendmsg+0xcd/0x170
[ 4956.935678][   T73]      do_syscall_64+0xc6/0x1e0
[ 4956.935678][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4956.935678][   T73] 
[ 4956.937628][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4956.938337][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4956.938337][   T73]      netdev_get_by_index+0x5e/0x80
[ 4956.938337][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4956.938337][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4956.938337][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4956.938337][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4956.938337][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4956.938337][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4956.938337][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4956.938337][   T73]      addrconf_dad_begin+0x310/0x670
[ 4956.938337][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4956.938337][   T73]      process_one_work+0x84d/0x18a0
[ 4956.938337][   T73]      worker_thread+0x587/0xd30
[ 4956.938337][   T73]      kthread+0x28a/0x350
[ 4956.938337][   T73]      ret_from_fork+0x31/0x70
[ 4956.938337][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4956.938337][   T73] 
[ 4956.940289][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4956.940289][   T73]      netdev_get_by_index+0x5e/0x80
[ 4956.940289][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4956.940289][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4956.940289][   T73]      ip6_route_add+0x1c/0x140
[ 4956.940289][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4956.940289][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4956.940289][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4956.940289][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4956.940289][   T73]      netlink_rcv_skb+0x130/0x360
[ 4956.940289][   T73]      netlink_unicast+0x449/0x710
[ 4956.940289][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4956.940289][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4956.940289][   T73]      ___sys_sendmsg+0xee/0x170
[ 4956.940289][   T73]      __sys_sendmsg+0xcd/0x170
[ 4956.940289][   T73]      do_syscall_64+0xc6/0x1e0
[ 4956.940289][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4956.940289][   T73] 
[ 4956.942499][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4956.942499][   T73]      netdev_get_by_index+0x5e/0x80
[ 4956.942499][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4956.942499][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4956.942499][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4956.942499][   T73]      ipv6_add_addr+0x411/0x2000
[ 4956.942499][   T73]      inet6_addr_add+0x30e/0xa40
[ 4956.942499][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4956.942499][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4956.942499][   T73]      netlink_rcv_skb+0x130/0x360
[ 4956.942499][   T73]      netlink_unicast+0x449/0x710
[ 4956.942499][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4956.942499][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4956.942499][   T73]      ___sys_sendmsg+0xee/0x170
[ 4956.942499][   T73]      __sys_sendmsg+0xcd/0x170
[ 4956.942499][   T73]      do_syscall_64+0xc6/0x1e0
[ 4956.942499][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4956.942499][   T73] 
[ 4956.944780][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4956.944780][   T73]      netdev_get_by_index+0x5e/0x80
[ 4956.944780][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4956.944780][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4956.944780][   T73]      ip6_route_add+0x1c/0x140
[ 4956.944780][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4956.944780][   T73]      addrconf_add_dev+0xe2/0x170
[ 4956.944780][   T73]      inet6_addr_add+0x12f/0xa40
[ 4956.944780][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4956.944780][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4956.944780][   T73]      netlink_rcv_skb+0x130/0x360
[ 4956.944780][   T73]      netlink_unicast+0x449/0x710
[ 4956.944780][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4956.944780][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4956.944780][   T73]      ___sys_sendmsg+0xee/0x170
[ 4956.944780][   T73]      __sys_sendmsg+0xcd/0x170
[ 4956.944780][   T73]      do_syscall_64+0xc6/0x1e0
[ 4956.944780][   T73] 
[ 4956.946880][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4956.946880][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4956.946880][   T73]      ipv6_find_idev+0x102/0x170
[ 4956.946880][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4956.946880][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4956.946880][   T73]      netlink_rcv_skb+0x130/0x360
[ 4956.946880][   T73]      netlink_unicast+0x449/0x710
[ 4956.946880][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4956.946880][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4956.946880][   T73]      ___sys_sendmsg+0xee/0x170
[ 4956.946880][   T73]      __sys_sendmsg+0xcd/0x170
[ 4956.946880][   T73]      do_syscall_64+0xc6/0x1e0
[ 4956.946880][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4956.946880][   T73] 
[ 4956.948605][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4956.948605][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4956.948605][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4956.948605][   T73]      ipv6_find_idev+0x102/0x170
[ 4956.948605][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4956.948605][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4956.948605][   T73]      netlink_rcv_skb+0x130/0x360
[ 4956.948605][   T73]      netlink_unicast+0x449/0x710
[ 4956.948605][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4956.948605][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4956.948605][   T73]      ___sys_sendmsg+0xee/0x170
[ 4956.948605][   T73]      __sys_sendmsg+0xcd/0x170
[ 4956.948605][   T73]      do_syscall_64+0xc6/0x1e0
[ 4956.948605][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4956.948605][   T73] 
[ 4967.175809][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4967.176252][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4967.176252][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4967.176252][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4967.176252][   T73]      fib6_nh_init+0xa22/0x1580
[ 4967.176252][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4967.176252][   T73]      ip6_route_add+0x1c/0x140
[ 4967.176252][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4967.176252][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4967.176252][   T73]      netlink_rcv_skb+0x130/0x360
[ 4967.176252][   T73]      netlink_unicast+0x449/0x710
[ 4967.176252][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4967.176252][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4967.176252][   T73]      ___sys_sendmsg+0xee/0x170
[ 4967.176252][   T73]      __sys_sendmsg+0xcd/0x170
[ 4967.176252][   T73]      do_syscall_64+0xc6/0x1e0
[ 4967.176252][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4967.176252][   T73] 
[ 4967.178186][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4967.178186][   T73]      dst_init+0x84/0x4a0
[ 4967.178186][   T73]      dst_alloc+0x97/0x150
[ 4967.178186][   T73]      ip6_dst_alloc+0x23/0x90
[ 4967.178186][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4967.178186][   T73]      ip6_pol_route+0x56f/0x840
[ 4967.178186][   T73]      fib6_rule_lookup+0x456/0x630
[ 4967.178186][   T73]      ip6_route_input+0x59c/0xa50
[ 4967.178186][   T73]      ipv6_rcv+0x397/0x810
[ 4967.178186][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4967.178186][   T73]      process_backlog+0x101/0x620
[ 4967.178186][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4967.178186][   T73]      net_rx_action+0x495/0xbe0
[ 4967.178186][   T73]      __do_softirq+0x1b5/0x7f6
[ 4967.178186][   T73] 
[ 4967.179982][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4967.179982][   T73]      netdev_get_by_index+0x5e/0x80
[ 4967.179982][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4967.179982][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4967.179982][   T73]      ip6_route_add+0x1c/0x140
[ 4967.179982][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4967.179982][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4967.179982][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4967.179982][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4967.179982][   T73]      netlink_rcv_skb+0x130/0x360
[ 4967.179982][   T73]      netlink_unicast+0x449/0x710
[ 4967.179982][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4967.179982][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4967.179982][   T73]      ___sys_sendmsg+0xee/0x170
[ 4967.179982][   T73]      __sys_sendmsg+0xcd/0x170
[ 4967.179982][   T73]      do_syscall_64+0xc6/0x1e0
[ 4967.179982][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4967.179982][   T73] 
[ 4967.182008][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4967.182008][   T73]      netdev_get_by_index+0x5e/0x80
[ 4967.182008][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4967.182008][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4967.182008][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4967.182008][   T73]      ipv6_add_addr+0x411/0x2000
[ 4967.182008][   T73]      inet6_addr_add+0x30e/0xa40
[ 4967.182008][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4967.182008][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4967.182008][   T73]      netlink_rcv_skb+0x130/0x360
[ 4967.182008][   T73]      netlink_unicast+0x449/0x710
[ 4967.182008][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4967.182008][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4967.182008][   T73]      ___sys_sendmsg+0xee/0x170
[ 4967.182008][   T73]      __sys_sendmsg+0xcd/0x170
[ 4967.182008][   T73]      do_syscall_64+0xc6/0x1e0
[ 4967.182008][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4967.182008][   T73] 
[ 4967.184023][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4967.184023][   T73]      netdev_get_by_index+0x5e/0x80
[ 4967.184023][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4967.184023][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4967.184023][   T73]      ip6_route_add+0x1c/0x140
[ 4967.184023][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4967.184023][   T73]      addrconf_add_dev+0xe2/0x170
[ 4967.184023][   T73]      inet6_addr_add+0x12f/0xa40
[ 4967.184023][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4967.184023][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4967.184023][   T73]      netlink_rcv_skb+0x130/0x360
[ 4967.184023][   T73]      netlink_unicast+0x449/0x710
[ 4967.184023][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4967.184023][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4967.184023][   T73]      ___sys_sendmsg+0xee/0x170
[ 4967.184023][   T73]      __sys_sendmsg+0xcd/0x170
[ 4967.184023][   T73]      do_syscall_64+0xc6/0x1e0
[ 4967.184023][   T73] 
[ 4967.186005][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4967.186005][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4967.186005][   T73]      ipv6_find_idev+0x102/0x170
[ 4967.186005][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4967.186005][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4967.186005][   T73]      netlink_rcv_skb+0x130/0x360
[ 4967.186005][   T73]      netlink_unicast+0x449/0x710
[ 4967.186005][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4967.186005][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4967.186005][   T73]      ___sys_sendmsg+0xee/0x170
[ 4967.186005][   T73]      __sys_sendmsg+0xcd/0x170
[ 4967.186005][   T73]      do_syscall_64+0xc6/0x1e0
[ 4967.186005][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4967.186005][   T73] 
[ 4967.187574][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4967.187574][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4967.187574][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4967.187574][   T73]      ipv6_find_idev+0x102/0x170
[ 4967.187574][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4967.187574][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4967.187574][   T73]      netlink_rcv_skb+0x130/0x360
[ 4967.187574][   T73]      netlink_unicast+0x449/0x710
[ 4967.187574][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4967.187574][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4967.187574][   T73]      ___sys_sendmsg+0xee/0x170
[ 4967.187574][   T73]      __sys_sendmsg+0xcd/0x170
[ 4967.187574][   T73]      do_syscall_64+0xc6/0x1e0
[ 4967.187574][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4967.187574][   T73] 
[ 4967.189271][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4967.189555][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4967.189555][   T73]      netdev_get_by_index+0x5e/0x80
[ 4967.189555][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4967.189555][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4967.189555][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4967.189555][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4967.189555][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4967.189555][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4967.189555][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4967.189555][   T73]      addrconf_dad_begin+0x310/0x670
[ 4967.189555][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4967.189555][   T73]      process_one_work+0x84d/0x18a0
[ 4967.189555][   T73]      worker_thread+0x587/0xd30
[ 4967.189555][   T73]      kthread+0x28a/0x350
[ 4967.189555][   T73]      ret_from_fork+0x31/0x70
[ 4967.189555][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4967.189555][   T73] 
[ 4967.191490][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4967.191490][   T73]      netdev_get_by_index+0x5e/0x80
[ 4967.191490][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4967.191490][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4967.191490][   T73]      ip6_route_add+0x1c/0x140
[ 4967.191490][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4967.191490][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4967.191490][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4967.191490][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4967.191490][   T73]      netlink_rcv_skb+0x130/0x360
[ 4967.191490][   T73]      netlink_unicast+0x449/0x710
[ 4967.191490][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4967.191490][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4967.191490][   T73]      ___sys_sendmsg+0xee/0x170
[ 4967.191490][   T73]      __sys_sendmsg+0xcd/0x170
[ 4967.191490][   T73]      do_syscall_64+0xc6/0x1e0
[ 4967.191490][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4967.191490][   T73] 
[ 4967.193522][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4967.193522][   T73]      netdev_get_by_index+0x5e/0x80
[ 4967.193522][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4967.193522][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4967.193522][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4967.193522][   T73]      ipv6_add_addr+0x411/0x2000
[ 4967.193522][   T73]      inet6_addr_add+0x30e/0xa40
[ 4967.193522][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4967.193522][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4967.193522][   T73]      netlink_rcv_skb+0x130/0x360
[ 4967.193522][   T73]      netlink_unicast+0x449/0x710
[ 4967.193522][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4967.193522][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4967.193522][   T73]      ___sys_sendmsg+0xee/0x170
[ 4967.193522][   T73]      __sys_sendmsg+0xcd/0x170
[ 4967.193522][   T73]      do_syscall_64+0xc6/0x1e0
[ 4967.193522][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4967.193522][   T73] 
[ 4967.195539][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4967.195539][   T73]      netdev_get_by_index+0x5e/0x80
[ 4967.195539][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4967.195539][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4967.195539][   T73]      ip6_route_add+0x1c/0x140
[ 4967.195539][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4967.195539][   T73]      addrconf_add_dev+0xe2/0x170
[ 4967.195539][   T73]      inet6_addr_add+0x12f/0xa40
[ 4967.195539][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4967.195539][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4967.195539][   T73]      netlink_rcv_skb+0x130/0x360
[ 4967.195539][   T73]      netlink_unicast+0x449/0x710
[ 4967.195539][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4967.195539][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4967.195539][   T73]      ___sys_sendmsg+0xee/0x170
[ 4967.195539][   T73]      __sys_sendmsg+0xcd/0x170
[ 4967.195539][   T73]      do_syscall_64+0xc6/0x1e0
[ 4967.195539][   T73] 
[ 4967.197509][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4967.197509][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4967.197509][   T73]      ipv6_find_idev+0x102/0x170
[ 4967.197509][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4967.197509][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4967.197509][   T73]      netlink_rcv_skb+0x130/0x360
[ 4967.197509][   T73]      netlink_unicast+0x449/0x710
[ 4967.197509][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4967.197509][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4967.197509][   T73]      ___sys_sendmsg+0xee/0x170
[ 4967.197509][   T73]      __sys_sendmsg+0xcd/0x170
[ 4967.197509][   T73]      do_syscall_64+0xc6/0x1e0
[ 4967.197509][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4967.197509][   T73] 
[ 4967.199071][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4967.199071][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4967.199071][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4967.199071][   T73]      ipv6_find_idev+0x102/0x170
[ 4967.199071][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4967.199071][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4967.199071][   T73]      netlink_rcv_skb+0x130/0x360
[ 4967.199071][   T73]      netlink_unicast+0x449/0x710
[ 4967.199071][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4967.199071][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4967.199071][   T73]      ___sys_sendmsg+0xee/0x170
[ 4967.199071][   T73]      __sys_sendmsg+0xcd/0x170
[ 4967.199071][   T73]      do_syscall_64+0xc6/0x1e0
[ 4967.199071][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4967.199071][   T73] 
[ 4967.200750][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4967.201021][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4967.201021][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4967.201021][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4967.201021][   T73]      fib6_nh_init+0xa22/0x1580
[ 4967.201021][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4967.201021][   T73]      ip6_route_add+0x1c/0x140
[ 4967.201021][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4967.201021][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4967.201021][   T73]      netlink_rcv_skb+0x130/0x360
[ 4967.201021][   T73]      netlink_unicast+0x449/0x710
[ 4967.201021][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4967.201021][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4967.201021][   T73]      ___sys_sendmsg+0xee/0x170
[ 4967.201021][   T73]      __sys_sendmsg+0xcd/0x170
[ 4967.201021][   T73]      do_syscall_64+0xc6/0x1e0
[ 4967.201021][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4967.201021][   T73] 
[ 4967.203039][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4967.203039][   T73]      dst_init+0x84/0x4a0
[ 4967.203039][   T73]      dst_alloc+0x97/0x150
[ 4967.203039][   T73]      ip6_dst_alloc+0x23/0x90
[ 4967.203039][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4967.203039][   T73]      ip6_pol_route+0x56f/0x840
[ 4967.203039][   T73]      fib6_rule_lookup+0x456/0x630
[ 4967.203039][   T73]      ip6_route_input+0x59c/0xa50
[ 4967.203039][   T73]      ipv6_rcv+0x397/0x810
[ 4967.203039][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4967.203039][   T73]      process_backlog+0x101/0x620
[ 4967.203039][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4967.203039][   T73]      net_rx_action+0x495/0xbe0
[ 4967.203039][   T73]      __do_softirq+0x1b5/0x7f6
[ 4967.203039][   T73] 
[ 4967.204932][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4967.204932][   T73]      netdev_get_by_index+0x5e/0x80
[ 4967.204932][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4967.204932][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4967.204932][   T73]      ip6_route_add+0x1c/0x140
[ 4967.204932][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4967.204932][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4967.204932][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4967.204932][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4967.204932][   T73]      netlink_rcv_skb+0x130/0x360
[ 4967.204932][   T73]      netlink_unicast+0x449/0x710
[ 4967.204932][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4967.204932][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4967.204932][   T73]      ___sys_sendmsg+0xee/0x170
[ 4967.204932][   T73]      __sys_sendmsg+0xcd/0x170
[ 4967.204932][   T73]      do_syscall_64+0xc6/0x1e0
[ 4967.204932][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4967.204932][   T73] 
[ 4967.207193][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4967.207193][   T73]      netdev_get_by_index+0x5e/0x80
[ 4967.207193][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4967.207193][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4967.207193][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4967.207193][   T73]      ipv6_add_addr+0x411/0x2000
[ 4967.207193][   T73]      inet6_addr_add+0x30e/0xa40
[ 4967.207193][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4967.207193][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4967.207193][   T73]      netlink_rcv_skb+0x130/0x360
[ 4967.207193][   T73]      netlink_unicast+0x449/0x710
[ 4967.207193][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4967.207193][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4967.207193][   T73]      ___sys_sendmsg+0xee/0x170
[ 4967.207193][   T73]      __sys_sendmsg+0xcd/0x170
[ 4967.207193][   T73]      do_syscall_64+0xc6/0x1e0
[ 4967.207193][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4967.207193][   T73] 
[ 4967.209398][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4967.209398][   T73]      netdev_get_by_index+0x5e/0x80
[ 4967.209398][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4967.209398][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4967.209398][   T73]      ip6_route_add+0x1c/0x140
[ 4967.209398][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4967.209398][   T73]      addrconf_add_dev+0xe2/0x170
[ 4967.209398][   T73]      inet6_addr_add+0x12f/0xa40
[ 4967.209398][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4967.209398][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4967.209398][   T73]      netlink_rcv_skb+0x130/0x360
[ 4967.209398][   T73]      netlink_unicast+0x449/0x710
[ 4967.209398][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4967.209398][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4967.209398][   T73]      ___sys_sendmsg+0xee/0x170
[ 4967.209398][   T73]      __sys_sendmsg+0xcd/0x170
[ 4967.209398][   T73]      do_syscall_64+0xc6/0x1e0
[ 4967.209398][   T73] 
[ 4967.211570][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4967.211570][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4967.211570][   T73]      ipv6_find_idev+0x102/0x170
[ 4967.211570][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4967.211570][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4967.211570][   T73]      netlink_rcv_skb+0x130/0x360
[ 4967.211570][   T73]      netlink_unicast+0x449/0x710
[ 4967.211570][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4967.211570][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4967.211570][   T73]      ___sys_sendmsg+0xee/0x170
[ 4967.211570][   T73]      __sys_sendmsg+0xcd/0x170
[ 4967.211570][   T73]      do_syscall_64+0xc6/0x1e0
[ 4967.211570][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4967.211570][   T73] 
[ 4967.213305][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4967.213305][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4967.213305][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4967.213305][   T73]      ipv6_find_idev+0x102/0x170
[ 4967.213305][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4967.213305][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4967.213305][   T73]      netlink_rcv_skb+0x130/0x360
[ 4967.213305][   T73]      netlink_unicast+0x449/0x710
[ 4967.213305][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4967.213305][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4967.213305][   T73]      ___sys_sendmsg+0xee/0x170
[ 4967.213305][   T73]      __sys_sendmsg+0xcd/0x170
[ 4967.213305][   T73]      do_syscall_64+0xc6/0x1e0
[ 4967.213305][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4967.213305][   T73] 
[ 4967.215305][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4967.215572][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4967.215572][   T73]      netdev_get_by_index+0x5e/0x80
[ 4967.215572][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4967.215572][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4967.215572][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4967.215572][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4967.215572][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4967.215572][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4967.215572][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4967.215572][   T73]      addrconf_dad_begin+0x310/0x670
[ 4967.215572][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4967.215572][   T73]      process_one_work+0x84d/0x18a0
[ 4967.215572][   T73]      worker_thread+0x587/0xd30
[ 4967.215572][   T73]      kthread+0x28a/0x350
[ 4967.215572][   T73]      ret_from_fork+0x31/0x70
[ 4967.215572][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4967.215572][   T73] 
[ 4967.217762][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4967.217762][   T73]      netdev_get_by_index+0x5e/0x80
[ 4967.217762][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4967.217762][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4967.217762][   T73]      ip6_route_add+0x1c/0x140
[ 4967.217762][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4967.217762][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4967.217762][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4967.217762][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4967.217762][   T73]      netlink_rcv_skb+0x130/0x360
[ 4967.217762][   T73]      netlink_unicast+0x449/0x710
[ 4967.217762][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4967.217762][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4967.217762][   T73]      ___sys_sendmsg+0xee/0x170
[ 4967.217762][   T73]      __sys_sendmsg+0xcd/0x170
[ 4967.217762][   T73]      do_syscall_64+0xc6/0x1e0
[ 4967.217762][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4967.217762][   T73] 
[ 4967.220025][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4967.220025][   T73]      netdev_get_by_index+0x5e/0x80
[ 4967.220025][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4967.220025][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4967.220025][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4967.220025][   T73]      ipv6_add_addr+0x411/0x2000
[ 4967.220025][   T73]      inet6_addr_add+0x30e/0xa40
[ 4967.220025][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4967.220025][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4967.220025][   T73]      netlink_rcv_skb+0x130/0x360
[ 4967.220025][   T73]      netlink_unicast+0x449/0x710
[ 4967.220025][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4967.220025][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4967.220025][   T73]      ___sys_sendmsg+0xee/0x170
[ 4967.220025][   T73]      __sys_sendmsg+0xcd/0x170
[ 4967.220025][   T73]      do_syscall_64+0xc6/0x1e0
[ 4967.220025][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4967.220025][   T73] 
[ 4967.222759][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4967.222759][   T73]      netdev_get_by_index+0x5e/0x80
[ 4967.222759][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4967.222759][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4967.222759][   T73]      ip6_route_add+0x1c/0x140
[ 4967.222759][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4967.222759][   T73]      addrconf_add_dev+0xe2/0x170
[ 4967.222759][   T73]      inet6_addr_add+0x12f/0xa40
[ 4967.222759][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4967.222759][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4967.222759][   T73]      netlink_rcv_skb+0x130/0x360
[ 4967.222759][   T73]      netlink_unicast+0x449/0x710
[ 4967.222759][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4967.222759][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4967.222759][   T73]      ___sys_sendmsg+0xee/0x170
[ 4967.222759][   T73]      __sys_sendmsg+0xcd/0x170
[ 4967.222759][   T73]      do_syscall_64+0xc6/0x1e0
[ 4967.222759][   T73] 
[ 4967.224981][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4967.224981][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4967.224981][   T73]      ipv6_find_idev+0x102/0x170
[ 4967.224981][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4967.224981][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4967.224981][   T73]      netlink_rcv_skb+0x130/0x360
[ 4967.224981][   T73]      netlink_unicast+0x449/0x710
[ 4967.224981][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4967.224981][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4967.224981][   T73]      ___sys_sendmsg+0xee/0x170
[ 4967.224981][   T73]      __sys_sendmsg+0xcd/0x170
[ 4967.224981][   T73]      do_syscall_64+0xc6/0x1e0
[ 4967.224981][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4967.224981][   T73] 
[ 4967.226720][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4967.226720][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4967.226720][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4967.226720][   T73]      ipv6_find_idev+0x102/0x170
[ 4967.226720][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4967.226720][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4967.226720][   T73]      netlink_rcv_skb+0x130/0x360
[ 4967.226720][   T73]      netlink_unicast+0x449/0x710
[ 4967.226720][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4967.226720][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4967.226720][   T73]      ___sys_sendmsg+0xee/0x170
[ 4967.226720][   T73]      __sys_sendmsg+0xcd/0x170
[ 4967.226720][   T73]      do_syscall_64+0xc6/0x1e0
[ 4967.226720][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4967.226720][   T73] 
[ 4977.471704][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4977.472112][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4977.472112][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4977.472112][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4977.472112][   T73]      fib6_nh_init+0xa22/0x1580
[ 4977.472112][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4977.472112][   T73]      ip6_route_add+0x1c/0x140
[ 4977.472112][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4977.472112][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4977.472112][   T73]      netlink_rcv_skb+0x130/0x360
[ 4977.472112][   T73]      netlink_unicast+0x449/0x710
[ 4977.472112][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4977.472112][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4977.472112][   T73]      ___sys_sendmsg+0xee/0x170
[ 4977.472112][   T73]      __sys_sendmsg+0xcd/0x170
[ 4977.472112][   T73]      do_syscall_64+0xc6/0x1e0
[ 4977.472112][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4977.472112][   T73] 
[ 4977.474694][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4977.474694][   T73]      dst_init+0x84/0x4a0
[ 4977.474694][   T73]      dst_alloc+0x97/0x150
[ 4977.474694][   T73]      ip6_dst_alloc+0x23/0x90
[ 4977.474694][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4977.474694][   T73]      ip6_pol_route+0x56f/0x840
[ 4977.474694][   T73]      fib6_rule_lookup+0x456/0x630
[ 4977.474694][   T73]      ip6_route_input+0x59c/0xa50
[ 4977.474694][   T73]      ipv6_rcv+0x397/0x810
[ 4977.474694][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4977.474694][   T73]      process_backlog+0x101/0x620
[ 4977.474694][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4977.474694][   T73]      net_rx_action+0x495/0xbe0
[ 4977.474694][   T73]      __do_softirq+0x1b5/0x7f6
[ 4977.474694][   T73] 
[ 4977.476332][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4977.476332][   T73]      netdev_get_by_index+0x5e/0x80
[ 4977.476332][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4977.476332][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4977.476332][   T73]      ip6_route_add+0x1c/0x140
[ 4977.476332][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4977.476332][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4977.476332][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4977.476332][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4977.476332][   T73]      netlink_rcv_skb+0x130/0x360
[ 4977.476332][   T73]      netlink_unicast+0x449/0x710
[ 4977.476332][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4977.476332][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4977.476332][   T73]      ___sys_sendmsg+0xee/0x170
[ 4977.476332][   T73]      __sys_sendmsg+0xcd/0x170
[ 4977.476332][   T73]      do_syscall_64+0xc6/0x1e0
[ 4977.476332][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4977.476332][   T73] 
[ 4977.478330][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4977.478330][   T73]      netdev_get_by_index+0x5e/0x80
[ 4977.478330][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4977.478330][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4977.478330][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4977.478330][   T73]      ipv6_add_addr+0x411/0x2000
[ 4977.478330][   T73]      inet6_addr_add+0x30e/0xa40
[ 4977.478330][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4977.478330][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4977.478330][   T73]      netlink_rcv_skb+0x130/0x360
[ 4977.478330][   T73]      netlink_unicast+0x449/0x710
[ 4977.478330][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4977.478330][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4977.478330][   T73]      ___sys_sendmsg+0xee/0x170
[ 4977.478330][   T73]      __sys_sendmsg+0xcd/0x170
[ 4977.478330][   T73]      do_syscall_64+0xc6/0x1e0
[ 4977.478330][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4977.478330][   T73] 
[ 4977.480353][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4977.480353][   T73]      netdev_get_by_index+0x5e/0x80
[ 4977.480353][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4977.480353][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4977.480353][   T73]      ip6_route_add+0x1c/0x140
[ 4977.480353][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4977.480353][   T73]      addrconf_add_dev+0xe2/0x170
[ 4977.480353][   T73]      inet6_addr_add+0x12f/0xa40
[ 4977.480353][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4977.480353][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4977.480353][   T73]      netlink_rcv_skb+0x130/0x360
[ 4977.480353][   T73]      netlink_unicast+0x449/0x710
[ 4977.480353][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4977.480353][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4977.480353][   T73]      ___sys_sendmsg+0xee/0x170
[ 4977.480353][   T73]      __sys_sendmsg+0xcd/0x170
[ 4977.480353][   T73]      do_syscall_64+0xc6/0x1e0
[ 4977.480353][   T73] 
[ 4977.482335][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4977.482335][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4977.482335][   T73]      ipv6_find_idev+0x102/0x170
[ 4977.482335][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4977.482335][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4977.482335][   T73]      netlink_rcv_skb+0x130/0x360
[ 4977.482335][   T73]      netlink_unicast+0x449/0x710
[ 4977.482335][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4977.482335][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4977.482335][   T73]      ___sys_sendmsg+0xee/0x170
[ 4977.482335][   T73]      __sys_sendmsg+0xcd/0x170
[ 4977.482335][   T73]      do_syscall_64+0xc6/0x1e0
[ 4977.482335][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4977.482335][   T73] 
[ 4977.483885][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4977.483885][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4977.483885][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4977.483885][   T73]      ipv6_find_idev+0x102/0x170
[ 4977.483885][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4977.483885][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4977.483885][   T73]      netlink_rcv_skb+0x130/0x360
[ 4977.483885][   T73]      netlink_unicast+0x449/0x710
[ 4977.483885][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4977.483885][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4977.483885][   T73]      ___sys_sendmsg+0xee/0x170
[ 4977.483885][   T73]      __sys_sendmsg+0xcd/0x170
[ 4977.483885][   T73]      do_syscall_64+0xc6/0x1e0
[ 4977.483885][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4977.483885][   T73] 
[ 4977.485580][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4977.485864][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4977.485864][   T73]      netdev_get_by_index+0x5e/0x80
[ 4977.485864][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4977.485864][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4977.485864][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4977.485864][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4977.485864][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4977.485864][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4977.485864][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4977.485864][   T73]      addrconf_dad_begin+0x310/0x670
[ 4977.485864][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4977.485864][   T73]      process_one_work+0x84d/0x18a0
[ 4977.485864][   T73]      worker_thread+0x587/0xd30
[ 4977.485864][   T73]      kthread+0x28a/0x350
[ 4977.485864][   T73]      ret_from_fork+0x31/0x70
[ 4977.485864][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4977.485864][   T73] 
[ 4977.487786][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4977.487786][   T73]      netdev_get_by_index+0x5e/0x80
[ 4977.487786][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4977.487786][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4977.487786][   T73]      ip6_route_add+0x1c/0x140
[ 4977.487786][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4977.487786][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4977.487786][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4977.487786][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4977.487786][   T73]      netlink_rcv_skb+0x130/0x360
[ 4977.487786][   T73]      netlink_unicast+0x449/0x710
[ 4977.487786][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4977.487786][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4977.487786][   T73]      ___sys_sendmsg+0xee/0x170
[ 4977.487786][   T73]      __sys_sendmsg+0xcd/0x170
[ 4977.487786][   T73]      do_syscall_64+0xc6/0x1e0
[ 4977.487786][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4977.487786][   T73] 
[ 4977.489778][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4977.489778][   T73]      netdev_get_by_index+0x5e/0x80
[ 4977.489778][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4977.489778][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4977.489778][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4977.489778][   T73]      ipv6_add_addr+0x411/0x2000
[ 4977.489778][   T73]      inet6_addr_add+0x30e/0xa40
[ 4977.489778][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4977.489778][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4977.489778][   T73]      netlink_rcv_skb+0x130/0x360
[ 4977.489778][   T73]      netlink_unicast+0x449/0x710
[ 4977.489778][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4977.489778][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4977.489778][   T73]      ___sys_sendmsg+0xee/0x170
[ 4977.489778][   T73]      __sys_sendmsg+0xcd/0x170
[ 4977.489778][   T73]      do_syscall_64+0xc6/0x1e0
[ 4977.489778][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4977.489778][   T73] 
[ 4977.492292][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4977.492292][   T73]      netdev_get_by_index+0x5e/0x80
[ 4977.492292][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4977.492292][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4977.492292][   T73]      ip6_route_add+0x1c/0x140
[ 4977.492292][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4977.492292][   T73]      addrconf_add_dev+0xe2/0x170
[ 4977.492292][   T73]      inet6_addr_add+0x12f/0xa40
[ 4977.492292][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4977.492292][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4977.492292][   T73]      netlink_rcv_skb+0x130/0x360
[ 4977.492292][   T73]      netlink_unicast+0x449/0x710
[ 4977.492292][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4977.492292][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4977.492292][   T73]      ___sys_sendmsg+0xee/0x170
[ 4977.492292][   T73]      __sys_sendmsg+0xcd/0x170
[ 4977.492292][   T73]      do_syscall_64+0xc6/0x1e0
[ 4977.492292][   T73] 
[ 4977.494244][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4977.494244][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4977.494244][   T73]      ipv6_find_idev+0x102/0x170
[ 4977.494244][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4977.494244][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4977.494244][   T73]      netlink_rcv_skb+0x130/0x360
[ 4977.494244][   T73]      netlink_unicast+0x449/0x710
[ 4977.494244][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4977.494244][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4977.494244][   T73]      ___sys_sendmsg+0xee/0x170
[ 4977.494244][   T73]      __sys_sendmsg+0xcd/0x170
[ 4977.494244][   T73]      do_syscall_64+0xc6/0x1e0
[ 4977.494244][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4977.494244][   T73] 
[ 4977.495781][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4977.495781][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4977.495781][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4977.495781][   T73]      ipv6_find_idev+0x102/0x170
[ 4977.495781][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4977.495781][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4977.495781][   T73]      netlink_rcv_skb+0x130/0x360
[ 4977.495781][   T73]      netlink_unicast+0x449/0x710
[ 4977.495781][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4977.495781][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4977.495781][   T73]      ___sys_sendmsg+0xee/0x170
[ 4977.495781][   T73]      __sys_sendmsg+0xcd/0x170
[ 4977.495781][   T73]      do_syscall_64+0xc6/0x1e0
[ 4977.495781][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4977.495781][   T73] 
[ 4977.497467][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4977.498166][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4977.498166][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4977.498166][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4977.498166][   T73]      fib6_nh_init+0xa22/0x1580
[ 4977.498166][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4977.498166][   T73]      ip6_route_add+0x1c/0x140
[ 4977.498166][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4977.498166][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4977.498166][   T73]      netlink_rcv_skb+0x130/0x360
[ 4977.498166][   T73]      netlink_unicast+0x449/0x710
[ 4977.498166][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4977.498166][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4977.498166][   T73]      ___sys_sendmsg+0xee/0x170
[ 4977.498166][   T73]      __sys_sendmsg+0xcd/0x170
[ 4977.498166][   T73]      do_syscall_64+0xc6/0x1e0
[ 4977.498166][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4977.498166][   T73] 
[ 4977.500688][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4977.500688][   T73]      dst_init+0x84/0x4a0
[ 4977.500688][   T73]      dst_alloc+0x97/0x150
[ 4977.500688][   T73]      ip6_dst_alloc+0x23/0x90
[ 4977.500688][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4977.500688][   T73]      ip6_pol_route+0x56f/0x840
[ 4977.500688][   T73]      fib6_rule_lookup+0x456/0x630
[ 4977.500688][   T73]      ip6_route_input+0x59c/0xa50
[ 4977.500688][   T73]      ipv6_rcv+0x397/0x810
[ 4977.500688][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4977.500688][   T73]      process_backlog+0x101/0x620
[ 4977.500688][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4977.500688][   T73]      net_rx_action+0x495/0xbe0
[ 4977.500688][   T73]      __do_softirq+0x1b5/0x7f6
[ 4977.500688][   T73] 
[ 4977.502319][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4977.502319][   T73]      netdev_get_by_index+0x5e/0x80
[ 4977.502319][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4977.502319][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4977.502319][   T73]      ip6_route_add+0x1c/0x140
[ 4977.502319][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4977.502319][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4977.502319][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4977.502319][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4977.502319][   T73]      netlink_rcv_skb+0x130/0x360
[ 4977.502319][   T73]      netlink_unicast+0x449/0x710
[ 4977.502319][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4977.502319][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4977.502319][   T73]      ___sys_sendmsg+0xee/0x170
[ 4977.502319][   T73]      __sys_sendmsg+0xcd/0x170
[ 4977.502319][   T73]      do_syscall_64+0xc6/0x1e0
[ 4977.502319][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4977.502319][   T73] 
[ 4977.504552][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4977.504552][   T73]      netdev_get_by_index+0x5e/0x80
[ 4977.504552][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4977.504552][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4977.504552][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4977.504552][   T73]      ipv6_add_addr+0x411/0x2000
[ 4977.504552][   T73]      inet6_addr_add+0x30e/0xa40
[ 4977.504552][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4977.504552][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4977.504552][   T73]      netlink_rcv_skb+0x130/0x360
[ 4977.504552][   T73]      netlink_unicast+0x449/0x710
[ 4977.504552][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4977.504552][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4977.504552][   T73]      ___sys_sendmsg+0xee/0x170
[ 4977.504552][   T73]      __sys_sendmsg+0xcd/0x170
[ 4977.504552][   T73]      do_syscall_64+0xc6/0x1e0
[ 4977.504552][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4977.504552][   T73] 
[ 4977.506800][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4977.506800][   T73]      netdev_get_by_index+0x5e/0x80
[ 4977.506800][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4977.506800][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4977.506800][   T73]      ip6_route_add+0x1c/0x140
[ 4977.506800][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4977.506800][   T73]      addrconf_add_dev+0xe2/0x170
[ 4977.506800][   T73]      inet6_addr_add+0x12f/0xa40
[ 4977.506800][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4977.506800][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4977.506800][   T73]      netlink_rcv_skb+0x130/0x360
[ 4977.506800][   T73]      netlink_unicast+0x449/0x710
[ 4977.506800][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4977.506800][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4977.506800][   T73]      ___sys_sendmsg+0xee/0x170
[ 4977.506800][   T73]      __sys_sendmsg+0xcd/0x170
[ 4977.506800][   T73]      do_syscall_64+0xc6/0x1e0
[ 4977.506800][   T73] 
[ 4977.508880][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4977.508880][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4977.508880][   T73]      ipv6_find_idev+0x102/0x170
[ 4977.508880][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4977.508880][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4977.508880][   T73]      netlink_rcv_skb+0x130/0x360
[ 4977.508880][   T73]      netlink_unicast+0x449/0x710
[ 4977.508880][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4977.508880][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4977.508880][   T73]      ___sys_sendmsg+0xee/0x170
[ 4977.508880][   T73]      __sys_sendmsg+0xcd/0x170
[ 4977.508880][   T73]      do_syscall_64+0xc6/0x1e0
[ 4977.508880][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4977.508880][   T73] 
[ 4977.510675][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4977.510675][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4977.510675][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4977.510675][   T73]      ipv6_find_idev+0x102/0x170
[ 4977.510675][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4977.510675][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4977.510675][   T73]      netlink_rcv_skb+0x130/0x360
[ 4977.510675][   T73]      netlink_unicast+0x449/0x710
[ 4977.510675][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4977.510675][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4977.510675][   T73]      ___sys_sendmsg+0xee/0x170
[ 4977.510675][   T73]      __sys_sendmsg+0xcd/0x170
[ 4977.510675][   T73]      do_syscall_64+0xc6/0x1e0
[ 4977.510675][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4977.510675][   T73] 
[ 4977.512659][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4977.512928][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4977.512928][   T73]      netdev_get_by_index+0x5e/0x80
[ 4977.512928][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4977.512928][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4977.512928][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4977.512928][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4977.512928][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4977.512928][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4977.512928][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4977.512928][   T73]      addrconf_dad_begin+0x310/0x670
[ 4977.512928][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4977.512928][   T73]      process_one_work+0x84d/0x18a0
[ 4977.512928][   T73]      worker_thread+0x587/0xd30
[ 4977.512928][   T73]      kthread+0x28a/0x350
[ 4977.512928][   T73]      ret_from_fork+0x31/0x70
[ 4977.512928][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4977.512928][   T73] 
[ 4977.515009][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4977.515009][   T73]      netdev_get_by_index+0x5e/0x80
[ 4977.515009][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4977.515009][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4977.515009][   T73]      ip6_route_add+0x1c/0x140
[ 4977.515009][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4977.515009][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4977.515009][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4977.515009][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4977.515009][   T73]      netlink_rcv_skb+0x130/0x360
[ 4977.515009][   T73]      netlink_unicast+0x449/0x710
[ 4977.515009][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4977.515009][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4977.515009][   T73]      ___sys_sendmsg+0xee/0x170
[ 4977.515009][   T73]      __sys_sendmsg+0xcd/0x170
[ 4977.515009][   T73]      do_syscall_64+0xc6/0x1e0
[ 4977.515009][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4977.515009][   T73] 
[ 4977.517239][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4977.517239][   T73]      netdev_get_by_index+0x5e/0x80
[ 4977.517239][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4977.517239][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4977.517239][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4977.517239][   T73]      ipv6_add_addr+0x411/0x2000
[ 4977.517239][   T73]      inet6_addr_add+0x30e/0xa40
[ 4977.517239][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4977.517239][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4977.517239][   T73]      netlink_rcv_skb+0x130/0x360
[ 4977.517239][   T73]      netlink_unicast+0x449/0x710
[ 4977.517239][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4977.517239][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4977.517239][   T73]      ___sys_sendmsg+0xee/0x170
[ 4977.517239][   T73]      __sys_sendmsg+0xcd/0x170
[ 4977.517239][   T73]      do_syscall_64+0xc6/0x1e0
[ 4977.517239][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4977.517239][   T73] 
[ 4977.519418][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4977.519418][   T73]      netdev_get_by_index+0x5e/0x80
[ 4977.519418][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4977.519418][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4977.519418][   T73]      ip6_route_add+0x1c/0x140
[ 4977.519418][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4977.519418][   T73]      addrconf_add_dev+0xe2/0x170
[ 4977.519418][   T73]      inet6_addr_add+0x12f/0xa40
[ 4977.519418][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4977.519418][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4977.519418][   T73]      netlink_rcv_skb+0x130/0x360
[ 4977.519418][   T73]      netlink_unicast+0x449/0x710
[ 4977.519418][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4977.519418][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4977.519418][   T73]      ___sys_sendmsg+0xee/0x170
[ 4977.519418][   T73]      __sys_sendmsg+0xcd/0x170
[ 4977.519418][   T73]      do_syscall_64+0xc6/0x1e0
[ 4977.519418][   T73] 
[ 4977.521644][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4977.521644][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4977.521644][   T73]      ipv6_find_idev+0x102/0x170
[ 4977.521644][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4977.521644][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4977.521644][   T73]      netlink_rcv_skb+0x130/0x360
[ 4977.521644][   T73]      netlink_unicast+0x449/0x710
[ 4977.521644][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4977.521644][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4977.521644][   T73]      ___sys_sendmsg+0xee/0x170
[ 4977.521644][   T73]      __sys_sendmsg+0xcd/0x170
[ 4977.521644][   T73]      do_syscall_64+0xc6/0x1e0
[ 4977.521644][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4977.521644][   T73] 
[ 4977.523299][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4977.523299][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4977.523299][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4977.523299][   T73]      ipv6_find_idev+0x102/0x170
[ 4977.523299][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4977.523299][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4977.523299][   T73]      netlink_rcv_skb+0x130/0x360
[ 4977.523299][   T73]      netlink_unicast+0x449/0x710
[ 4977.523299][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4977.523299][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4977.523299][   T73]      ___sys_sendmsg+0xee/0x170
[ 4977.523299][   T73]      __sys_sendmsg+0xcd/0x170
[ 4977.523299][   T73]      do_syscall_64+0xc6/0x1e0
[ 4977.523299][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4977.523299][   T73] 
[ 4987.767755][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4987.768212][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4987.768212][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4987.768212][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4987.768212][   T73]      fib6_nh_init+0xa22/0x1580
[ 4987.768212][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4987.768212][   T73]      ip6_route_add+0x1c/0x140
[ 4987.768212][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4987.768212][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4987.768212][   T73]      netlink_rcv_skb+0x130/0x360
[ 4987.768212][   T73]      netlink_unicast+0x449/0x710
[ 4987.768212][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4987.768212][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4987.768212][   T73]      ___sys_sendmsg+0xee/0x170
[ 4987.768212][   T73]      __sys_sendmsg+0xcd/0x170
[ 4987.768212][   T73]      do_syscall_64+0xc6/0x1e0
[ 4987.768212][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4987.768212][   T73] 
[ 4987.770133][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4987.770133][   T73]      dst_init+0x84/0x4a0
[ 4987.770133][   T73]      dst_alloc+0x97/0x150
[ 4987.770133][   T73]      ip6_dst_alloc+0x23/0x90
[ 4987.770133][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4987.770133][   T73]      ip6_pol_route+0x56f/0x840
[ 4987.770133][   T73]      fib6_rule_lookup+0x456/0x630
[ 4987.770133][   T73]      ip6_route_input+0x59c/0xa50
[ 4987.770133][   T73]      ipv6_rcv+0x397/0x810
[ 4987.770133][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4987.770133][   T73]      process_backlog+0x101/0x620
[ 4987.770133][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4987.770133][   T73]      net_rx_action+0x495/0xbe0
[ 4987.770133][   T73]      __do_softirq+0x1b5/0x7f6
[ 4987.770133][   T73] 
[ 4987.771798][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4987.771798][   T73]      netdev_get_by_index+0x5e/0x80
[ 4987.771798][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4987.771798][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4987.771798][   T73]      ip6_route_add+0x1c/0x140
[ 4987.771798][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4987.771798][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4987.771798][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4987.771798][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4987.771798][   T73]      netlink_rcv_skb+0x130/0x360
[ 4987.771798][   T73]      netlink_unicast+0x449/0x710
[ 4987.771798][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4987.771798][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4987.771798][   T73]      ___sys_sendmsg+0xee/0x170
[ 4987.771798][   T73]      __sys_sendmsg+0xcd/0x170
[ 4987.771798][   T73]      do_syscall_64+0xc6/0x1e0
[ 4987.771798][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4987.771798][   T73] 
[ 4987.773815][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4987.773815][   T73]      netdev_get_by_index+0x5e/0x80
[ 4987.773815][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4987.773815][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4987.773815][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4987.773815][   T73]      ipv6_add_addr+0x411/0x2000
[ 4987.773815][   T73]      inet6_addr_add+0x30e/0xa40
[ 4987.773815][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4987.773815][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4987.773815][   T73]      netlink_rcv_skb+0x130/0x360
[ 4987.773815][   T73]      netlink_unicast+0x449/0x710
[ 4987.773815][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4987.773815][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4987.773815][   T73]      ___sys_sendmsg+0xee/0x170
[ 4987.773815][   T73]      __sys_sendmsg+0xcd/0x170
[ 4987.773815][   T73]      do_syscall_64+0xc6/0x1e0
[ 4987.773815][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4987.773815][   T73] 
[ 4987.775815][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4987.775815][   T73]      netdev_get_by_index+0x5e/0x80
[ 4987.775815][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4987.775815][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4987.775815][   T73]      ip6_route_add+0x1c/0x140
[ 4987.775815][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4987.775815][   T73]      addrconf_add_dev+0xe2/0x170
[ 4987.775815][   T73]      inet6_addr_add+0x12f/0xa40
[ 4987.775815][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4987.775815][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4987.775815][   T73]      netlink_rcv_skb+0x130/0x360
[ 4987.775815][   T73]      netlink_unicast+0x449/0x710
[ 4987.775815][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4987.775815][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4987.775815][   T73]      ___sys_sendmsg+0xee/0x170
[ 4987.775815][   T73]      __sys_sendmsg+0xcd/0x170
[ 4987.775815][   T73]      do_syscall_64+0xc6/0x1e0
[ 4987.775815][   T73] 
[ 4987.777779][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4987.777779][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4987.777779][   T73]      ipv6_find_idev+0x102/0x170
[ 4987.777779][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4987.777779][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4987.777779][   T73]      netlink_rcv_skb+0x130/0x360
[ 4987.777779][   T73]      netlink_unicast+0x449/0x710
[ 4987.777779][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4987.777779][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4987.777779][   T73]      ___sys_sendmsg+0xee/0x170
[ 4987.777779][   T73]      __sys_sendmsg+0xcd/0x170
[ 4987.777779][   T73]      do_syscall_64+0xc6/0x1e0
[ 4987.777779][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4987.777779][   T73] 
[ 4987.779306][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4987.779306][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4987.779306][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4987.779306][   T73]      ipv6_find_idev+0x102/0x170
[ 4987.779306][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4987.779306][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4987.779306][   T73]      netlink_rcv_skb+0x130/0x360
[ 4987.779306][   T73]      netlink_unicast+0x449/0x710
[ 4987.779306][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4987.779306][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4987.779306][   T73]      ___sys_sendmsg+0xee/0x170
[ 4987.779306][   T73]      __sys_sendmsg+0xcd/0x170
[ 4987.779306][   T73]      do_syscall_64+0xc6/0x1e0
[ 4987.779306][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4987.779306][   T73] 
[ 4987.780986][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4987.781261][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4987.781261][   T73]      netdev_get_by_index+0x5e/0x80
[ 4987.781261][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4987.781261][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4987.781261][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4987.781261][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4987.781261][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4987.781261][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4987.781261][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4987.781261][   T73]      addrconf_dad_begin+0x310/0x670
[ 4987.781261][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4987.781261][   T73]      process_one_work+0x84d/0x18a0
[ 4987.781261][   T73]      worker_thread+0x587/0xd30
[ 4987.781261][   T73]      kthread+0x28a/0x350
[ 4987.781261][   T73]      ret_from_fork+0x31/0x70
[ 4987.781261][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4987.781261][   T73] 
[ 4987.783168][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4987.783168][   T73]      netdev_get_by_index+0x5e/0x80
[ 4987.783168][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4987.783168][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4987.783168][   T73]      ip6_route_add+0x1c/0x140
[ 4987.783168][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4987.783168][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4987.783168][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4987.783168][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4987.783168][   T73]      netlink_rcv_skb+0x130/0x360
[ 4987.783168][   T73]      netlink_unicast+0x449/0x710
[ 4987.783168][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4987.783168][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4987.783168][   T73]      ___sys_sendmsg+0xee/0x170
[ 4987.783168][   T73]      __sys_sendmsg+0xcd/0x170
[ 4987.783168][   T73]      do_syscall_64+0xc6/0x1e0
[ 4987.783168][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4987.783168][   T73] 
[ 4987.785165][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4987.785165][   T73]      netdev_get_by_index+0x5e/0x80
[ 4987.785165][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4987.785165][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4987.785165][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4987.785165][   T73]      ipv6_add_addr+0x411/0x2000
[ 4987.785165][   T73]      inet6_addr_add+0x30e/0xa40
[ 4987.785165][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4987.785165][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4987.785165][   T73]      netlink_rcv_skb+0x130/0x360
[ 4987.785165][   T73]      netlink_unicast+0x449/0x710
[ 4987.785165][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4987.785165][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4987.785165][   T73]      ___sys_sendmsg+0xee/0x170
[ 4987.785165][   T73]      __sys_sendmsg+0xcd/0x170
[ 4987.785165][   T73]      do_syscall_64+0xc6/0x1e0
[ 4987.785165][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4987.785165][   T73] 
[ 4987.787161][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4987.787161][   T73]      netdev_get_by_index+0x5e/0x80
[ 4987.787161][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4987.787161][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4987.787161][   T73]      ip6_route_add+0x1c/0x140
[ 4987.787161][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4987.787161][   T73]      addrconf_add_dev+0xe2/0x170
[ 4987.787161][   T73]      inet6_addr_add+0x12f/0xa40
[ 4987.787161][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4987.787161][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4987.787161][   T73]      netlink_rcv_skb+0x130/0x360
[ 4987.787161][   T73]      netlink_unicast+0x449/0x710
[ 4987.787161][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4987.787161][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4987.787161][   T73]      ___sys_sendmsg+0xee/0x170
[ 4987.787161][   T73]      __sys_sendmsg+0xcd/0x170
[ 4987.787161][   T73]      do_syscall_64+0xc6/0x1e0
[ 4987.787161][   T73] 
[ 4987.789107][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4987.789107][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4987.789107][   T73]      ipv6_find_idev+0x102/0x170
[ 4987.789107][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4987.789107][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4987.789107][   T73]      netlink_rcv_skb+0x130/0x360
[ 4987.789107][   T73]      netlink_unicast+0x449/0x710
[ 4987.789107][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4987.789107][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4987.789107][   T73]      ___sys_sendmsg+0xee/0x170
[ 4987.789107][   T73]      __sys_sendmsg+0xcd/0x170
[ 4987.789107][   T73]      do_syscall_64+0xc6/0x1e0
[ 4987.789107][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4987.789107][   T73] 
[ 4987.790635][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4987.790635][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4987.790635][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4987.790635][   T73]      ipv6_find_idev+0x102/0x170
[ 4987.790635][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4987.790635][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4987.790635][   T73]      netlink_rcv_skb+0x130/0x360
[ 4987.790635][   T73]      netlink_unicast+0x449/0x710
[ 4987.790635][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4987.790635][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4987.790635][   T73]      ___sys_sendmsg+0xee/0x170
[ 4987.790635][   T73]      __sys_sendmsg+0xcd/0x170
[ 4987.790635][   T73]      do_syscall_64+0xc6/0x1e0
[ 4987.790635][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4987.790635][   T73] 
[ 4987.792314][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4987.792575][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4987.792575][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4987.792575][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4987.792575][   T73]      fib6_nh_init+0xa22/0x1580
[ 4987.792575][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4987.792575][   T73]      ip6_route_add+0x1c/0x140
[ 4987.792575][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4987.792575][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4987.792575][   T73]      netlink_rcv_skb+0x130/0x360
[ 4987.792575][   T73]      netlink_unicast+0x449/0x710
[ 4987.792575][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4987.792575][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4987.792575][   T73]      ___sys_sendmsg+0xee/0x170
[ 4987.792575][   T73]      __sys_sendmsg+0xcd/0x170
[ 4987.792575][   T73]      do_syscall_64+0xc6/0x1e0
[ 4987.792575][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4987.792575][   T73] 
[ 4987.794619][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4987.794619][   T73]      dst_init+0x84/0x4a0
[ 4987.794619][   T73]      dst_alloc+0x97/0x150
[ 4987.794619][   T73]      ip6_dst_alloc+0x23/0x90
[ 4987.794619][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4987.794619][   T73]      ip6_pol_route+0x56f/0x840
[ 4987.794619][   T73]      fib6_rule_lookup+0x456/0x630
[ 4987.794619][   T73]      ip6_route_input+0x59c/0xa50
[ 4987.794619][   T73]      ipv6_rcv+0x397/0x810
[ 4987.794619][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4987.794619][   T73]      process_backlog+0x101/0x620
[ 4987.794619][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4987.794619][   T73]      net_rx_action+0x495/0xbe0
[ 4987.794619][   T73]      __do_softirq+0x1b5/0x7f6
[ 4987.794619][   T73] 
[ 4987.796425][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4987.796425][   T73]      netdev_get_by_index+0x5e/0x80
[ 4987.796425][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4987.796425][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4987.796425][   T73]      ip6_route_add+0x1c/0x140
[ 4987.796425][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4987.796425][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4987.796425][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4987.796425][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4987.796425][   T73]      netlink_rcv_skb+0x130/0x360
[ 4987.796425][   T73]      netlink_unicast+0x449/0x710
[ 4987.796425][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4987.796425][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4987.796425][   T73]      ___sys_sendmsg+0xee/0x170
[ 4987.796425][   T73]      __sys_sendmsg+0xcd/0x170
[ 4987.796425][   T73]      do_syscall_64+0xc6/0x1e0
[ 4987.796425][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4987.796425][   T73] 
[ 4987.798702][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4987.798702][   T73]      netdev_get_by_index+0x5e/0x80
[ 4987.798702][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4987.798702][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4987.798702][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4987.798702][   T73]      ipv6_add_addr+0x411/0x2000
[ 4987.798702][   T73]      inet6_addr_add+0x30e/0xa40
[ 4987.798702][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4987.798702][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4987.798702][   T73]      netlink_rcv_skb+0x130/0x360
[ 4987.798702][   T73]      netlink_unicast+0x449/0x710
[ 4987.798702][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4987.798702][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4987.798702][   T73]      ___sys_sendmsg+0xee/0x170
[ 4987.798702][   T73]      __sys_sendmsg+0xcd/0x170
[ 4987.798702][   T73]      do_syscall_64+0xc6/0x1e0
[ 4987.798702][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4987.798702][   T73] 
[ 4987.800866][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4987.800866][   T73]      netdev_get_by_index+0x5e/0x80
[ 4987.800866][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4987.800866][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4987.800866][   T73]      ip6_route_add+0x1c/0x140
[ 4987.800866][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4987.800866][   T73]      addrconf_add_dev+0xe2/0x170
[ 4987.800866][   T73]      inet6_addr_add+0x12f/0xa40
[ 4987.800866][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4987.800866][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4987.800866][   T73]      netlink_rcv_skb+0x130/0x360
[ 4987.800866][   T73]      netlink_unicast+0x449/0x710
[ 4987.800866][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4987.800866][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4987.800866][   T73]      ___sys_sendmsg+0xee/0x170
[ 4987.800866][   T73]      __sys_sendmsg+0xcd/0x170
[ 4987.800866][   T73]      do_syscall_64+0xc6/0x1e0
[ 4987.800866][   T73] 
[ 4987.802994][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4987.802994][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4987.802994][   T73]      ipv6_find_idev+0x102/0x170
[ 4987.802994][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4987.802994][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4987.802994][   T73]      netlink_rcv_skb+0x130/0x360
[ 4987.802994][   T73]      netlink_unicast+0x449/0x710
[ 4987.802994][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4987.802994][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4987.802994][   T73]      ___sys_sendmsg+0xee/0x170
[ 4987.802994][   T73]      __sys_sendmsg+0xcd/0x170
[ 4987.802994][   T73]      do_syscall_64+0xc6/0x1e0
[ 4987.802994][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4987.802994][   T73] 
[ 4987.804642][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4987.804642][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4987.804642][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4987.804642][   T73]      ipv6_find_idev+0x102/0x170
[ 4987.804642][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4987.804642][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4987.804642][   T73]      netlink_rcv_skb+0x130/0x360
[ 4987.804642][   T73]      netlink_unicast+0x449/0x710
[ 4987.804642][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4987.804642][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4987.804642][   T73]      ___sys_sendmsg+0xee/0x170
[ 4987.804642][   T73]      __sys_sendmsg+0xcd/0x170
[ 4987.804642][   T73]      do_syscall_64+0xc6/0x1e0
[ 4987.804642][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4987.804642][   T73] 
[ 4987.806527][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4987.807232][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4987.807232][   T73]      netdev_get_by_index+0x5e/0x80
[ 4987.807232][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4987.807232][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4987.807232][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4987.807232][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4987.807232][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4987.807232][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4987.807232][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4987.807232][   T73]      addrconf_dad_begin+0x310/0x670
[ 4987.807232][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4987.807232][   T73]      process_one_work+0x84d/0x18a0
[ 4987.807232][   T73]      worker_thread+0x587/0xd30
[ 4987.807232][   T73]      kthread+0x28a/0x350
[ 4987.807232][   T73]      ret_from_fork+0x31/0x70
[ 4987.807232][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4987.807232][   T73] 
[ 4987.809118][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4987.809118][   T73]      netdev_get_by_index+0x5e/0x80
[ 4987.809118][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4987.809118][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4987.809118][   T73]      ip6_route_add+0x1c/0x140
[ 4987.809118][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4987.809118][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4987.809118][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4987.809118][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4987.809118][   T73]      netlink_rcv_skb+0x130/0x360
[ 4987.809118][   T73]      netlink_unicast+0x449/0x710
[ 4987.809118][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4987.809118][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4987.809118][   T73]      ___sys_sendmsg+0xee/0x170
[ 4987.809118][   T73]      __sys_sendmsg+0xcd/0x170
[ 4987.809118][   T73]      do_syscall_64+0xc6/0x1e0
[ 4987.809118][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4987.809118][   T73] 
[ 4987.811276][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4987.811276][   T73]      netdev_get_by_index+0x5e/0x80
[ 4987.811276][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4987.811276][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4987.811276][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4987.811276][   T73]      ipv6_add_addr+0x411/0x2000
[ 4987.811276][   T73]      inet6_addr_add+0x30e/0xa40
[ 4987.811276][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4987.811276][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4987.811276][   T73]      netlink_rcv_skb+0x130/0x360
[ 4987.811276][   T73]      netlink_unicast+0x449/0x710
[ 4987.811276][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4987.811276][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4987.811276][   T73]      ___sys_sendmsg+0xee/0x170
[ 4987.811276][   T73]      __sys_sendmsg+0xcd/0x170
[ 4987.811276][   T73]      do_syscall_64+0xc6/0x1e0
[ 4987.811276][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4987.811276][   T73] 
[ 4987.813437][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4987.813437][   T73]      netdev_get_by_index+0x5e/0x80
[ 4987.813437][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4987.813437][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4987.813437][   T73]      ip6_route_add+0x1c/0x140
[ 4987.813437][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4987.813437][   T73]      addrconf_add_dev+0xe2/0x170
[ 4987.813437][   T73]      inet6_addr_add+0x12f/0xa40
[ 4987.813437][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4987.813437][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4987.813437][   T73]      netlink_rcv_skb+0x130/0x360
[ 4987.813437][   T73]      netlink_unicast+0x449/0x710
[ 4987.813437][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4987.813437][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4987.813437][   T73]      ___sys_sendmsg+0xee/0x170
[ 4987.813437][   T73]      __sys_sendmsg+0xcd/0x170
[ 4987.813437][   T73]      do_syscall_64+0xc6/0x1e0
[ 4987.813437][   T73] 
[ 4987.815637][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4987.815637][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4987.815637][   T73]      ipv6_find_idev+0x102/0x170
[ 4987.815637][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4987.815637][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4987.815637][   T73]      netlink_rcv_skb+0x130/0x360
[ 4987.815637][   T73]      netlink_unicast+0x449/0x710
[ 4987.815637][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4987.815637][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4987.815637][   T73]      ___sys_sendmsg+0xee/0x170
[ 4987.815637][   T73]      __sys_sendmsg+0xcd/0x170
[ 4987.815637][   T73]      do_syscall_64+0xc6/0x1e0
[ 4987.815637][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4987.815637][   T73] 
[ 4987.817342][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4987.817342][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4987.817342][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4987.817342][   T73]      ipv6_find_idev+0x102/0x170
[ 4987.817342][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4987.817342][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4987.817342][   T73]      netlink_rcv_skb+0x130/0x360
[ 4987.817342][   T73]      netlink_unicast+0x449/0x710
[ 4987.817342][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4987.817342][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4987.817342][   T73]      ___sys_sendmsg+0xee/0x170
[ 4987.817342][   T73]      __sys_sendmsg+0xcd/0x170
[ 4987.817342][   T73]      do_syscall_64+0xc6/0x1e0
[ 4987.817342][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4987.817342][   T73] 
[ 4997.839743][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 4997.840194][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4997.840194][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4997.840194][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4997.840194][   T73]      fib6_nh_init+0xa22/0x1580
[ 4997.840194][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4997.840194][   T73]      ip6_route_add+0x1c/0x140
[ 4997.840194][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4997.840194][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4997.840194][   T73]      netlink_rcv_skb+0x130/0x360
[ 4997.840194][   T73]      netlink_unicast+0x449/0x710
[ 4997.840194][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4997.840194][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4997.840194][   T73]      ___sys_sendmsg+0xee/0x170
[ 4997.840194][   T73]      __sys_sendmsg+0xcd/0x170
[ 4997.840194][   T73]      do_syscall_64+0xc6/0x1e0
[ 4997.840194][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4997.840194][   T73] 
[ 4997.842081][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 4997.842081][   T73]      dst_init+0x84/0x4a0
[ 4997.842081][   T73]      dst_alloc+0x97/0x150
[ 4997.842081][   T73]      ip6_dst_alloc+0x23/0x90
[ 4997.842081][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4997.842081][   T73]      ip6_pol_route+0x56f/0x840
[ 4997.842081][   T73]      fib6_rule_lookup+0x456/0x630
[ 4997.842081][   T73]      ip6_route_input+0x59c/0xa50
[ 4997.842081][   T73]      ipv6_rcv+0x397/0x810
[ 4997.842081][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4997.842081][   T73]      process_backlog+0x101/0x620
[ 4997.842081][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4997.842081][   T73]      net_rx_action+0x495/0xbe0
[ 4997.842081][   T73]      __do_softirq+0x1b5/0x7f6
[ 4997.842081][   T73] 
[ 4997.843726][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4997.843726][   T73]      netdev_get_by_index+0x5e/0x80
[ 4997.843726][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4997.843726][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4997.843726][   T73]      ip6_route_add+0x1c/0x140
[ 4997.843726][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4997.843726][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4997.843726][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4997.843726][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4997.843726][   T73]      netlink_rcv_skb+0x130/0x360
[ 4997.843726][   T73]      netlink_unicast+0x449/0x710
[ 4997.843726][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4997.843726][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4997.843726][   T73]      ___sys_sendmsg+0xee/0x170
[ 4997.843726][   T73]      __sys_sendmsg+0xcd/0x170
[ 4997.843726][   T73]      do_syscall_64+0xc6/0x1e0
[ 4997.843726][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4997.843726][   T73] 
[ 4997.845723][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4997.845723][   T73]      netdev_get_by_index+0x5e/0x80
[ 4997.845723][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4997.845723][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4997.845723][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4997.845723][   T73]      ipv6_add_addr+0x411/0x2000
[ 4997.845723][   T73]      inet6_addr_add+0x30e/0xa40
[ 4997.845723][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4997.845723][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4997.845723][   T73]      netlink_rcv_skb+0x130/0x360
[ 4997.845723][   T73]      netlink_unicast+0x449/0x710
[ 4997.845723][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4997.845723][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4997.845723][   T73]      ___sys_sendmsg+0xee/0x170
[ 4997.845723][   T73]      __sys_sendmsg+0xcd/0x170
[ 4997.845723][   T73]      do_syscall_64+0xc6/0x1e0
[ 4997.845723][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4997.845723][   T73] 
[ 4997.847715][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4997.847715][   T73]      netdev_get_by_index+0x5e/0x80
[ 4997.847715][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4997.847715][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4997.847715][   T73]      ip6_route_add+0x1c/0x140
[ 4997.847715][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4997.847715][   T73]      addrconf_add_dev+0xe2/0x170
[ 4997.847715][   T73]      inet6_addr_add+0x12f/0xa40
[ 4997.847715][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4997.847715][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4997.847715][   T73]      netlink_rcv_skb+0x130/0x360
[ 4997.847715][   T73]      netlink_unicast+0x449/0x710
[ 4997.847715][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4997.847715][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4997.847715][   T73]      ___sys_sendmsg+0xee/0x170
[ 4997.847715][   T73]      __sys_sendmsg+0xcd/0x170
[ 4997.847715][   T73]      do_syscall_64+0xc6/0x1e0
[ 4997.847715][   T73] 
[ 4997.849681][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4997.849681][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4997.849681][   T73]      ipv6_find_idev+0x102/0x170
[ 4997.849681][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4997.849681][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4997.849681][   T73]      netlink_rcv_skb+0x130/0x360
[ 4997.849681][   T73]      netlink_unicast+0x449/0x710
[ 4997.849681][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4997.849681][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4997.849681][   T73]      ___sys_sendmsg+0xee/0x170
[ 4997.849681][   T73]      __sys_sendmsg+0xcd/0x170
[ 4997.849681][   T73]      do_syscall_64+0xc6/0x1e0
[ 4997.849681][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4997.849681][   T73] 
[ 4997.851212][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 4997.851212][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4997.851212][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4997.851212][   T73]      ipv6_find_idev+0x102/0x170
[ 4997.851212][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4997.851212][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4997.851212][   T73]      netlink_rcv_skb+0x130/0x360
[ 4997.851212][   T73]      netlink_unicast+0x449/0x710
[ 4997.851212][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4997.851212][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4997.851212][   T73]      ___sys_sendmsg+0xee/0x170
[ 4997.851212][   T73]      __sys_sendmsg+0xcd/0x170
[ 4997.851212][   T73]      do_syscall_64+0xc6/0x1e0
[ 4997.851212][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4997.851212][   T73] 
[ 4997.852898][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 4997.853170][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4997.853170][   T73]      netdev_get_by_index+0x5e/0x80
[ 4997.853170][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4997.853170][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4997.853170][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4997.853170][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4997.853170][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4997.853170][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4997.853170][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4997.853170][   T73]      addrconf_dad_begin+0x310/0x670
[ 4997.853170][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4997.853170][   T73]      process_one_work+0x84d/0x18a0
[ 4997.853170][   T73]      worker_thread+0x587/0xd30
[ 4997.853170][   T73]      kthread+0x28a/0x350
[ 4997.853170][   T73]      ret_from_fork+0x31/0x70
[ 4997.853170][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4997.853170][   T73] 
[ 4997.855102][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4997.855102][   T73]      netdev_get_by_index+0x5e/0x80
[ 4997.855102][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4997.855102][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4997.855102][   T73]      ip6_route_add+0x1c/0x140
[ 4997.855102][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4997.855102][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4997.855102][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4997.855102][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4997.855102][   T73]      netlink_rcv_skb+0x130/0x360
[ 4997.855102][   T73]      netlink_unicast+0x449/0x710
[ 4997.855102][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4997.855102][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4997.855102][   T73]      ___sys_sendmsg+0xee/0x170
[ 4997.855102][   T73]      __sys_sendmsg+0xcd/0x170
[ 4997.855102][   T73]      do_syscall_64+0xc6/0x1e0
[ 4997.855102][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4997.855102][   T73] 
[ 4997.857118][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4997.857118][   T73]      netdev_get_by_index+0x5e/0x80
[ 4997.857118][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4997.857118][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4997.857118][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4997.857118][   T73]      ipv6_add_addr+0x411/0x2000
[ 4997.857118][   T73]      inet6_addr_add+0x30e/0xa40
[ 4997.857118][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4997.857118][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4997.857118][   T73]      netlink_rcv_skb+0x130/0x360
[ 4997.857118][   T73]      netlink_unicast+0x449/0x710
[ 4997.857118][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4997.857118][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4997.857118][   T73]      ___sys_sendmsg+0xee/0x170
[ 4997.857118][   T73]      __sys_sendmsg+0xcd/0x170
[ 4997.857118][   T73]      do_syscall_64+0xc6/0x1e0
[ 4997.857118][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4997.857118][   T73] 
[ 4997.859111][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4997.859111][   T73]      netdev_get_by_index+0x5e/0x80
[ 4997.859111][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4997.859111][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4997.859111][   T73]      ip6_route_add+0x1c/0x140
[ 4997.859111][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4997.859111][   T73]      addrconf_add_dev+0xe2/0x170
[ 4997.859111][   T73]      inet6_addr_add+0x12f/0xa40
[ 4997.859111][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4997.859111][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4997.859111][   T73]      netlink_rcv_skb+0x130/0x360
[ 4997.859111][   T73]      netlink_unicast+0x449/0x710
[ 4997.859111][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4997.859111][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4997.859111][   T73]      ___sys_sendmsg+0xee/0x170
[ 4997.859111][   T73]      __sys_sendmsg+0xcd/0x170
[ 4997.859111][   T73]      do_syscall_64+0xc6/0x1e0
[ 4997.859111][   T73] 
[ 4997.861096][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4997.861096][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4997.861096][   T73]      ipv6_find_idev+0x102/0x170
[ 4997.861096][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4997.861096][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4997.861096][   T73]      netlink_rcv_skb+0x130/0x360
[ 4997.861096][   T73]      netlink_unicast+0x449/0x710
[ 4997.861096][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4997.861096][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4997.861096][   T73]      ___sys_sendmsg+0xee/0x170
[ 4997.861096][   T73]      __sys_sendmsg+0xcd/0x170
[ 4997.861096][   T73]      do_syscall_64+0xc6/0x1e0
[ 4997.861096][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4997.861096][   T73] 
[ 4997.862645][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 4997.862645][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4997.862645][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4997.862645][   T73]      ipv6_find_idev+0x102/0x170
[ 4997.862645][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4997.862645][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4997.862645][   T73]      netlink_rcv_skb+0x130/0x360
[ 4997.862645][   T73]      netlink_unicast+0x449/0x710
[ 4997.862645][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4997.862645][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4997.862645][   T73]      ___sys_sendmsg+0xee/0x170
[ 4997.862645][   T73]      __sys_sendmsg+0xcd/0x170
[ 4997.862645][   T73]      do_syscall_64+0xc6/0x1e0
[ 4997.862645][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4997.862645][   T73] 
[ 4997.864333][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 4997.864595][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4997.864595][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 4997.864595][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 4997.864595][   T73]      fib6_nh_init+0xa22/0x1580
[ 4997.864595][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4997.864595][   T73]      ip6_route_add+0x1c/0x140
[ 4997.864595][   T73]      inet6_rtm_newroute+0x104/0x110
[ 4997.864595][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4997.864595][   T73]      netlink_rcv_skb+0x130/0x360
[ 4997.864595][   T73]      netlink_unicast+0x449/0x710
[ 4997.864595][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4997.864595][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4997.864595][   T73]      ___sys_sendmsg+0xee/0x170
[ 4997.864595][   T73]      __sys_sendmsg+0xcd/0x170
[ 4997.864595][   T73]      do_syscall_64+0xc6/0x1e0
[ 4997.864595][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4997.864595][   T73] 
[ 4997.866691][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 4997.866691][   T73]      dst_init+0x84/0x4a0
[ 4997.866691][   T73]      dst_alloc+0x97/0x150
[ 4997.866691][   T73]      ip6_dst_alloc+0x23/0x90
[ 4997.866691][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 4997.866691][   T73]      ip6_pol_route+0x56f/0x840
[ 4997.866691][   T73]      fib6_rule_lookup+0x456/0x630
[ 4997.866691][   T73]      ip6_route_input+0x59c/0xa50
[ 4997.866691][   T73]      ipv6_rcv+0x397/0x810
[ 4997.866691][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 4997.866691][   T73]      process_backlog+0x101/0x620
[ 4997.866691][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 4997.866691][   T73]      net_rx_action+0x495/0xbe0
[ 4997.866691][   T73]      __do_softirq+0x1b5/0x7f6
[ 4997.866691][   T73] 
[ 4997.868522][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4997.868522][   T73]      netdev_get_by_index+0x5e/0x80
[ 4997.868522][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4997.868522][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4997.868522][   T73]      ip6_route_add+0x1c/0x140
[ 4997.868522][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4997.868522][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4997.868522][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4997.868522][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4997.868522][   T73]      netlink_rcv_skb+0x130/0x360
[ 4997.868522][   T73]      netlink_unicast+0x449/0x710
[ 4997.868522][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4997.868522][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4997.868522][   T73]      ___sys_sendmsg+0xee/0x170
[ 4997.868522][   T73]      __sys_sendmsg+0xcd/0x170
[ 4997.868522][   T73]      do_syscall_64+0xc6/0x1e0
[ 4997.868522][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4997.868522][   T73] 
[ 4997.870759][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4997.870759][   T73]      netdev_get_by_index+0x5e/0x80
[ 4997.870759][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4997.870759][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4997.870759][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4997.870759][   T73]      ipv6_add_addr+0x411/0x2000
[ 4997.870759][   T73]      inet6_addr_add+0x30e/0xa40
[ 4997.870759][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4997.870759][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4997.870759][   T73]      netlink_rcv_skb+0x130/0x360
[ 4997.870759][   T73]      netlink_unicast+0x449/0x710
[ 4997.870759][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4997.870759][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4997.870759][   T73]      ___sys_sendmsg+0xee/0x170
[ 4997.870759][   T73]      __sys_sendmsg+0xcd/0x170
[ 4997.870759][   T73]      do_syscall_64+0xc6/0x1e0
[ 4997.870759][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4997.870759][   T73] 
[ 4997.873020][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4997.873020][   T73]      netdev_get_by_index+0x5e/0x80
[ 4997.873020][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4997.873020][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4997.873020][   T73]      ip6_route_add+0x1c/0x140
[ 4997.873020][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4997.873020][   T73]      addrconf_add_dev+0xe2/0x170
[ 4997.873020][   T73]      inet6_addr_add+0x12f/0xa40
[ 4997.873020][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4997.873020][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4997.873020][   T73]      netlink_rcv_skb+0x130/0x360
[ 4997.873020][   T73]      netlink_unicast+0x449/0x710
[ 4997.873020][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4997.873020][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4997.873020][   T73]      ___sys_sendmsg+0xee/0x170
[ 4997.873020][   T73]      __sys_sendmsg+0xcd/0x170
[ 4997.873020][   T73]      do_syscall_64+0xc6/0x1e0
[ 4997.873020][   T73] 
[ 4997.875174][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4997.875174][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4997.875174][   T73]      ipv6_find_idev+0x102/0x170
[ 4997.875174][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4997.875174][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4997.875174][   T73]      netlink_rcv_skb+0x130/0x360
[ 4997.875174][   T73]      netlink_unicast+0x449/0x710
[ 4997.875174][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4997.875174][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4997.875174][   T73]      ___sys_sendmsg+0xee/0x170
[ 4997.875174][   T73]      __sys_sendmsg+0xcd/0x170
[ 4997.875174][   T73]      do_syscall_64+0xc6/0x1e0
[ 4997.875174][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4997.875174][   T73] 
[ 4997.876908][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 4997.876908][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4997.876908][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4997.876908][   T73]      ipv6_find_idev+0x102/0x170
[ 4997.876908][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4997.876908][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4997.876908][   T73]      netlink_rcv_skb+0x130/0x360
[ 4997.876908][   T73]      netlink_unicast+0x449/0x710
[ 4997.876908][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4997.876908][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4997.876908][   T73]      ___sys_sendmsg+0xee/0x170
[ 4997.876908][   T73]      __sys_sendmsg+0xcd/0x170
[ 4997.876908][   T73]      do_syscall_64+0xc6/0x1e0
[ 4997.876908][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4997.876908][   T73] 
[ 4997.878896][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 4997.879168][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4997.879168][   T73]      netdev_get_by_index+0x5e/0x80
[ 4997.879168][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4997.879168][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4997.879168][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 4997.879168][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 4997.879168][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 4997.879168][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 4997.879168][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 4997.879168][   T73]      addrconf_dad_begin+0x310/0x670
[ 4997.879168][   T73]      addrconf_dad_work+0x10b/0xab0
[ 4997.879168][   T73]      process_one_work+0x84d/0x18a0
[ 4997.879168][   T73]      worker_thread+0x587/0xd30
[ 4997.879168][   T73]      kthread+0x28a/0x350
[ 4997.879168][   T73]      ret_from_fork+0x31/0x70
[ 4997.879168][   T73]      ret_from_fork_asm+0x1a/0x30
[ 4997.879168][   T73] 
[ 4997.881344][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4997.881344][   T73]      netdev_get_by_index+0x5e/0x80
[ 4997.881344][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4997.881344][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4997.881344][   T73]      ip6_route_add+0x1c/0x140
[ 4997.881344][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 4997.881344][   T73]      inet6_addr_add+0x4f8/0xa40
[ 4997.881344][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4997.881344][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4997.881344][   T73]      netlink_rcv_skb+0x130/0x360
[ 4997.881344][   T73]      netlink_unicast+0x449/0x710
[ 4997.881344][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4997.881344][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4997.881344][   T73]      ___sys_sendmsg+0xee/0x170
[ 4997.881344][   T73]      __sys_sendmsg+0xcd/0x170
[ 4997.881344][   T73]      do_syscall_64+0xc6/0x1e0
[ 4997.881344][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4997.881344][   T73] 
[ 4997.883533][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4997.883533][   T73]      netdev_get_by_index+0x5e/0x80
[ 4997.883533][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4997.883533][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4997.883533][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 4997.883533][   T73]      ipv6_add_addr+0x411/0x2000
[ 4997.883533][   T73]      inet6_addr_add+0x30e/0xa40
[ 4997.883533][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4997.883533][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4997.883533][   T73]      netlink_rcv_skb+0x130/0x360
[ 4997.883533][   T73]      netlink_unicast+0x449/0x710
[ 4997.883533][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4997.883533][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4997.883533][   T73]      ___sys_sendmsg+0xee/0x170
[ 4997.883533][   T73]      __sys_sendmsg+0xcd/0x170
[ 4997.883533][   T73]      do_syscall_64+0xc6/0x1e0
[ 4997.883533][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4997.883533][   T73] 
[ 4997.885783][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4997.885783][   T73]      netdev_get_by_index+0x5e/0x80
[ 4997.885783][   T73]      fib6_nh_init+0x3d8/0x1580
[ 4997.885783][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 4997.885783][   T73]      ip6_route_add+0x1c/0x140
[ 4997.885783][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 4997.885783][   T73]      addrconf_add_dev+0xe2/0x170
[ 4997.885783][   T73]      inet6_addr_add+0x12f/0xa40
[ 4997.885783][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 4997.885783][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4997.885783][   T73]      netlink_rcv_skb+0x130/0x360
[ 4997.885783][   T73]      netlink_unicast+0x449/0x710
[ 4997.885783][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4997.885783][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4997.885783][   T73]      ___sys_sendmsg+0xee/0x170
[ 4997.885783][   T73]      __sys_sendmsg+0xcd/0x170
[ 4997.885783][   T73]      do_syscall_64+0xc6/0x1e0
[ 4997.885783][   T73] 
[ 4997.888059][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4997.888059][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 4997.888059][   T73]      ipv6_find_idev+0x102/0x170
[ 4997.888059][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4997.888059][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4997.888059][   T73]      netlink_rcv_skb+0x130/0x360
[ 4997.888059][   T73]      netlink_unicast+0x449/0x710
[ 4997.888059][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4997.888059][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4997.888059][   T73]      ___sys_sendmsg+0xee/0x170
[ 4997.888059][   T73]      __sys_sendmsg+0xcd/0x170
[ 4997.888059][   T73]      do_syscall_64+0xc6/0x1e0
[ 4997.888059][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4997.888059][   T73] 
[ 4997.889789][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 4997.889789][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 4997.889789][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 4997.889789][   T73]      ipv6_find_idev+0x102/0x170
[ 4997.889789][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 4997.889789][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 4997.889789][   T73]      netlink_rcv_skb+0x130/0x360
[ 4997.889789][   T73]      netlink_unicast+0x449/0x710
[ 4997.889789][   T73]      netlink_sendmsg+0x723/0xbe0
[ 4997.889789][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 4997.889789][   T73]      ___sys_sendmsg+0xee/0x170
[ 4997.889789][   T73]      __sys_sendmsg+0xcd/0x170
[ 4997.889789][   T73]      do_syscall_64+0xc6/0x1e0
[ 4997.889789][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 4997.889789][   T73] 
[ 5008.127789][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5008.128332][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5008.128332][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5008.128332][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5008.128332][   T73]      fib6_nh_init+0xa22/0x1580
[ 5008.128332][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5008.128332][   T73]      ip6_route_add+0x1c/0x140
[ 5008.128332][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5008.128332][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5008.128332][   T73]      netlink_rcv_skb+0x130/0x360
[ 5008.128332][   T73]      netlink_unicast+0x449/0x710
[ 5008.128332][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5008.128332][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5008.128332][   T73]      ___sys_sendmsg+0xee/0x170
[ 5008.128332][   T73]      __sys_sendmsg+0xcd/0x170
[ 5008.128332][   T73]      do_syscall_64+0xc6/0x1e0
[ 5008.128332][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5008.128332][   T73] 
[ 5008.130504][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5008.130504][   T73]      dst_init+0x84/0x4a0
[ 5008.130504][   T73]      dst_alloc+0x97/0x150
[ 5008.130504][   T73]      ip6_dst_alloc+0x23/0x90
[ 5008.130504][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5008.130504][   T73]      ip6_pol_route+0x56f/0x840
[ 5008.130504][   T73]      fib6_rule_lookup+0x456/0x630
[ 5008.130504][   T73]      ip6_route_input+0x59c/0xa50
[ 5008.130504][   T73]      ipv6_rcv+0x397/0x810
[ 5008.130504][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5008.130504][   T73]      process_backlog+0x101/0x620
[ 5008.130504][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5008.130504][   T73]      net_rx_action+0x495/0xbe0
[ 5008.130504][   T73]      __do_softirq+0x1b5/0x7f6
[ 5008.130504][   T73] 
[ 5008.132354][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5008.132354][   T73]      netdev_get_by_index+0x5e/0x80
[ 5008.132354][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5008.132354][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5008.132354][   T73]      ip6_route_add+0x1c/0x140
[ 5008.132354][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5008.132354][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5008.132354][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5008.132354][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5008.132354][   T73]      netlink_rcv_skb+0x130/0x360
[ 5008.132354][   T73]      netlink_unicast+0x449/0x710
[ 5008.132354][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5008.132354][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5008.132354][   T73]      ___sys_sendmsg+0xee/0x170
[ 5008.132354][   T73]      __sys_sendmsg+0xcd/0x170
[ 5008.132354][   T73]      do_syscall_64+0xc6/0x1e0
[ 5008.132354][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5008.132354][   T73] 
[ 5008.134624][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5008.134624][   T73]      netdev_get_by_index+0x5e/0x80
[ 5008.134624][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5008.134624][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5008.134624][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5008.134624][   T73]      ipv6_add_addr+0x411/0x2000
[ 5008.134624][   T73]      inet6_addr_add+0x30e/0xa40
[ 5008.134624][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5008.134624][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5008.134624][   T73]      netlink_rcv_skb+0x130/0x360
[ 5008.134624][   T73]      netlink_unicast+0x449/0x710
[ 5008.134624][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5008.134624][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5008.134624][   T73]      ___sys_sendmsg+0xee/0x170
[ 5008.134624][   T73]      __sys_sendmsg+0xcd/0x170
[ 5008.134624][   T73]      do_syscall_64+0xc6/0x1e0
[ 5008.134624][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5008.134624][   T73] 
[ 5008.136892][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5008.136892][   T73]      netdev_get_by_index+0x5e/0x80
[ 5008.136892][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5008.136892][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5008.136892][   T73]      ip6_route_add+0x1c/0x140
[ 5008.136892][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5008.136892][   T73]      addrconf_add_dev+0xe2/0x170
[ 5008.136892][   T73]      inet6_addr_add+0x12f/0xa40
[ 5008.136892][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5008.136892][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5008.136892][   T73]      netlink_rcv_skb+0x130/0x360
[ 5008.136892][   T73]      netlink_unicast+0x449/0x710
[ 5008.136892][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5008.136892][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5008.136892][   T73]      ___sys_sendmsg+0xee/0x170
[ 5008.136892][   T73]      __sys_sendmsg+0xcd/0x170
[ 5008.136892][   T73]      do_syscall_64+0xc6/0x1e0
[ 5008.136892][   T73] 
[ 5008.139096][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5008.139096][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5008.139096][   T73]      ipv6_find_idev+0x102/0x170
[ 5008.139096][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5008.139096][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5008.139096][   T73]      netlink_rcv_skb+0x130/0x360
[ 5008.139096][   T73]      netlink_unicast+0x449/0x710
[ 5008.139096][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5008.139096][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5008.139096][   T73]      ___sys_sendmsg+0xee/0x170
[ 5008.139096][   T73]      __sys_sendmsg+0xcd/0x170
[ 5008.139096][   T73]      do_syscall_64+0xc6/0x1e0
[ 5008.139096][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5008.139096][   T73] 
[ 5008.140811][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5008.140811][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5008.140811][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5008.140811][   T73]      ipv6_find_idev+0x102/0x170
[ 5008.140811][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5008.140811][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5008.140811][   T73]      netlink_rcv_skb+0x130/0x360
[ 5008.140811][   T73]      netlink_unicast+0x449/0x710
[ 5008.140811][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5008.140811][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5008.140811][   T73]      ___sys_sendmsg+0xee/0x170
[ 5008.140811][   T73]      __sys_sendmsg+0xcd/0x170
[ 5008.140811][   T73]      do_syscall_64+0xc6/0x1e0
[ 5008.140811][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5008.140811][   T73] 
[ 5008.142758][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5008.143071][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5008.143071][   T73]      netdev_get_by_index+0x5e/0x80
[ 5008.143071][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5008.143071][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5008.143071][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5008.143071][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5008.143071][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5008.143071][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5008.143071][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5008.143071][   T73]      addrconf_dad_begin+0x310/0x670
[ 5008.143071][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5008.143071][   T73]      process_one_work+0x84d/0x18a0
[ 5008.143071][   T73]      worker_thread+0x587/0xd30
[ 5008.143071][   T73]      kthread+0x28a/0x350
[ 5008.143071][   T73]      ret_from_fork+0x31/0x70
[ 5008.143071][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5008.143071][   T73] 
[ 5008.145222][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5008.145222][   T73]      netdev_get_by_index+0x5e/0x80
[ 5008.145222][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5008.145222][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5008.145222][   T73]      ip6_route_add+0x1c/0x140
[ 5008.145222][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5008.145222][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5008.145222][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5008.145222][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5008.145222][   T73]      netlink_rcv_skb+0x130/0x360
[ 5008.145222][   T73]      netlink_unicast+0x449/0x710
[ 5008.145222][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5008.145222][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5008.145222][   T73]      ___sys_sendmsg+0xee/0x170
[ 5008.145222][   T73]      __sys_sendmsg+0xcd/0x170
[ 5008.145222][   T73]      do_syscall_64+0xc6/0x1e0
[ 5008.145222][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5008.145222][   T73] 
[ 5008.147449][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5008.147449][   T73]      netdev_get_by_index+0x5e/0x80
[ 5008.147449][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5008.147449][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5008.147449][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5008.147449][   T73]      ipv6_add_addr+0x411/0x2000
[ 5008.147449][   T73]      inet6_addr_add+0x30e/0xa40
[ 5008.147449][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5008.147449][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5008.147449][   T73]      netlink_rcv_skb+0x130/0x360
[ 5008.147449][   T73]      netlink_unicast+0x449/0x710
[ 5008.147449][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5008.147449][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5008.147449][   T73]      ___sys_sendmsg+0xee/0x170
[ 5008.147449][   T73]      __sys_sendmsg+0xcd/0x170
[ 5008.147449][   T73]      do_syscall_64+0xc6/0x1e0
[ 5008.147449][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5008.147449][   T73] 
[ 5008.149673][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5008.149673][   T73]      netdev_get_by_index+0x5e/0x80
[ 5008.149673][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5008.149673][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5008.149673][   T73]      ip6_route_add+0x1c/0x140
[ 5008.149673][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5008.149673][   T73]      addrconf_add_dev+0xe2/0x170
[ 5008.149673][   T73]      inet6_addr_add+0x12f/0xa40
[ 5008.149673][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5008.149673][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5008.149673][   T73]      netlink_rcv_skb+0x130/0x360
[ 5008.149673][   T73]      netlink_unicast+0x449/0x710
[ 5008.149673][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5008.149673][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5008.149673][   T73]      ___sys_sendmsg+0xee/0x170
[ 5008.149673][   T73]      __sys_sendmsg+0xcd/0x170
[ 5008.149673][   T73]      do_syscall_64+0xc6/0x1e0
[ 5008.149673][   T73] 
[ 5008.151891][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5008.151891][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5008.151891][   T73]      ipv6_find_idev+0x102/0x170
[ 5008.151891][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5008.151891][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5008.151891][   T73]      netlink_rcv_skb+0x130/0x360
[ 5008.151891][   T73]      netlink_unicast+0x449/0x710
[ 5008.151891][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5008.151891][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5008.151891][   T73]      ___sys_sendmsg+0xee/0x170
[ 5008.151891][   T73]      __sys_sendmsg+0xcd/0x170
[ 5008.151891][   T73]      do_syscall_64+0xc6/0x1e0
[ 5008.151891][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5008.151891][   T73] 
[ 5008.153613][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5008.153613][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5008.153613][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5008.153613][   T73]      ipv6_find_idev+0x102/0x170
[ 5008.153613][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5008.153613][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5008.153613][   T73]      netlink_rcv_skb+0x130/0x360
[ 5008.153613][   T73]      netlink_unicast+0x449/0x710
[ 5008.153613][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5008.153613][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5008.153613][   T73]      ___sys_sendmsg+0xee/0x170
[ 5008.153613][   T73]      __sys_sendmsg+0xcd/0x170
[ 5008.153613][   T73]      do_syscall_64+0xc6/0x1e0
[ 5008.153613][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5008.153613][   T73] 
[ 5008.155483][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5008.155786][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5008.155786][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5008.155786][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5008.155786][   T73]      fib6_nh_init+0xa22/0x1580
[ 5008.155786][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5008.155786][   T73]      ip6_route_add+0x1c/0x140
[ 5008.155786][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5008.155786][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5008.155786][   T73]      netlink_rcv_skb+0x130/0x360
[ 5008.155786][   T73]      netlink_unicast+0x449/0x710
[ 5008.155786][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5008.155786][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5008.155786][   T73]      ___sys_sendmsg+0xee/0x170
[ 5008.155786][   T73]      __sys_sendmsg+0xcd/0x170
[ 5008.155786][   T73]      do_syscall_64+0xc6/0x1e0
[ 5008.155786][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5008.155786][   T73] 
[ 5008.158099][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5008.158099][   T73]      dst_init+0x84/0x4a0
[ 5008.158099][   T73]      dst_alloc+0x97/0x150
[ 5008.158099][   T73]      ip6_dst_alloc+0x23/0x90
[ 5008.158099][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5008.158099][   T73]      ip6_pol_route+0x56f/0x840
[ 5008.158099][   T73]      fib6_rule_lookup+0x456/0x630
[ 5008.158099][   T73]      ip6_route_input+0x59c/0xa50
[ 5008.158099][   T73]      ipv6_rcv+0x397/0x810
[ 5008.158099][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5008.158099][   T73]      process_backlog+0x101/0x620
[ 5008.158099][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5008.158099][   T73]      net_rx_action+0x495/0xbe0
[ 5008.158099][   T73]      __do_softirq+0x1b5/0x7f6
[ 5008.158099][   T73] 
[ 5008.160099][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5008.160099][   T73]      netdev_get_by_index+0x5e/0x80
[ 5008.160099][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5008.160099][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5008.160099][   T73]      ip6_route_add+0x1c/0x140
[ 5008.160099][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5008.160099][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5008.160099][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5008.160099][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5008.160099][   T73]      netlink_rcv_skb+0x130/0x360
[ 5008.160099][   T73]      netlink_unicast+0x449/0x710
[ 5008.160099][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5008.160099][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5008.160099][   T73]      ___sys_sendmsg+0xee/0x170
[ 5008.160099][   T73]      __sys_sendmsg+0xcd/0x170
[ 5008.160099][   T73]      do_syscall_64+0xc6/0x1e0
[ 5008.160099][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5008.160099][   T73] 
[ 5008.162603][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5008.162603][   T73]      netdev_get_by_index+0x5e/0x80
[ 5008.162603][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5008.162603][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5008.162603][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5008.162603][   T73]      ipv6_add_addr+0x411/0x2000
[ 5008.162603][   T73]      inet6_addr_add+0x30e/0xa40
[ 5008.162603][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5008.162603][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5008.162603][   T73]      netlink_rcv_skb+0x130/0x360
[ 5008.162603][   T73]      netlink_unicast+0x449/0x710
[ 5008.162603][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5008.162603][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5008.162603][   T73]      ___sys_sendmsg+0xee/0x170
[ 5008.162603][   T73]      __sys_sendmsg+0xcd/0x170
[ 5008.162603][   T73]      do_syscall_64+0xc6/0x1e0
[ 5008.162603][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5008.162603][   T73] 
[ 5008.165044][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5008.165044][   T73]      netdev_get_by_index+0x5e/0x80
[ 5008.165044][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5008.165044][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5008.165044][   T73]      ip6_route_add+0x1c/0x140
[ 5008.165044][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5008.165044][   T73]      addrconf_add_dev+0xe2/0x170
[ 5008.165044][   T73]      inet6_addr_add+0x12f/0xa40
[ 5008.165044][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5008.165044][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5008.165044][   T73]      netlink_rcv_skb+0x130/0x360
[ 5008.165044][   T73]      netlink_unicast+0x449/0x710
[ 5008.165044][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5008.165044][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5008.165044][   T73]      ___sys_sendmsg+0xee/0x170
[ 5008.165044][   T73]      __sys_sendmsg+0xcd/0x170
[ 5008.165044][   T73]      do_syscall_64+0xc6/0x1e0
[ 5008.165044][   T73] 
[ 5008.167600][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5008.167600][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5008.167600][   T73]      ipv6_find_idev+0x102/0x170
[ 5008.167600][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5008.167600][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5008.167600][   T73]      netlink_rcv_skb+0x130/0x360
[ 5008.167600][   T73]      netlink_unicast+0x449/0x710
[ 5008.167600][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5008.167600][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5008.167600][   T73]      ___sys_sendmsg+0xee/0x170
[ 5008.167600][   T73]      __sys_sendmsg+0xcd/0x170
[ 5008.167600][   T73]      do_syscall_64+0xc6/0x1e0
[ 5008.167600][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5008.167600][   T73] 
[ 5008.169540][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5008.169540][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5008.169540][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5008.169540][   T73]      ipv6_find_idev+0x102/0x170
[ 5008.169540][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5008.169540][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5008.169540][   T73]      netlink_rcv_skb+0x130/0x360
[ 5008.169540][   T73]      netlink_unicast+0x449/0x710
[ 5008.169540][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5008.169540][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5008.169540][   T73]      ___sys_sendmsg+0xee/0x170
[ 5008.169540][   T73]      __sys_sendmsg+0xcd/0x170
[ 5008.169540][   T73]      do_syscall_64+0xc6/0x1e0
[ 5008.169540][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5008.169540][   T73] 
[ 5008.171625][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5008.172417][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5008.172417][   T73]      netdev_get_by_index+0x5e/0x80
[ 5008.172417][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5008.172417][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5008.172417][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5008.172417][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5008.172417][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5008.172417][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5008.172417][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5008.172417][   T73]      addrconf_dad_begin+0x310/0x670
[ 5008.172417][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5008.172417][   T73]      process_one_work+0x84d/0x18a0
[ 5008.172417][   T73]      worker_thread+0x587/0xd30
[ 5008.172417][   T73]      kthread+0x28a/0x350
[ 5008.172417][   T73]      ret_from_fork+0x31/0x70
[ 5008.172417][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5008.172417][   T73] 
[ 5008.174605][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5008.174605][   T73]      netdev_get_by_index+0x5e/0x80
[ 5008.174605][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5008.174605][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5008.174605][   T73]      ip6_route_add+0x1c/0x140
[ 5008.174605][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5008.174605][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5008.174605][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5008.174605][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5008.174605][   T73]      netlink_rcv_skb+0x130/0x360
[ 5008.174605][   T73]      netlink_unicast+0x449/0x710
[ 5008.174605][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5008.174605][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5008.174605][   T73]      ___sys_sendmsg+0xee/0x170
[ 5008.174605][   T73]      __sys_sendmsg+0xcd/0x170
[ 5008.174605][   T73]      do_syscall_64+0xc6/0x1e0
[ 5008.174605][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5008.174605][   T73] 
[ 5008.176937][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5008.176937][   T73]      netdev_get_by_index+0x5e/0x80
[ 5008.176937][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5008.176937][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5008.176937][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5008.176937][   T73]      ipv6_add_addr+0x411/0x2000
[ 5008.176937][   T73]      inet6_addr_add+0x30e/0xa40
[ 5008.176937][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5008.176937][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5008.176937][   T73]      netlink_rcv_skb+0x130/0x360
[ 5008.176937][   T73]      netlink_unicast+0x449/0x710
[ 5008.176937][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5008.176937][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5008.176937][   T73]      ___sys_sendmsg+0xee/0x170
[ 5008.176937][   T73]      __sys_sendmsg+0xcd/0x170
[ 5008.176937][   T73]      do_syscall_64+0xc6/0x1e0
[ 5008.176937][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5008.176937][   T73] 
[ 5008.179389][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5008.179389][   T73]      netdev_get_by_index+0x5e/0x80
[ 5008.179389][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5008.179389][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5008.179389][   T73]      ip6_route_add+0x1c/0x140
[ 5008.179389][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5008.179389][   T73]      addrconf_add_dev+0xe2/0x170
[ 5008.179389][   T73]      inet6_addr_add+0x12f/0xa40
[ 5008.179389][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5008.179389][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5008.179389][   T73]      netlink_rcv_skb+0x130/0x360
[ 5008.179389][   T73]      netlink_unicast+0x449/0x710
[ 5008.179389][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5008.179389][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5008.179389][   T73]      ___sys_sendmsg+0xee/0x170
[ 5008.179389][   T73]      __sys_sendmsg+0xcd/0x170
[ 5008.179389][   T73]      do_syscall_64+0xc6/0x1e0
[ 5008.179389][   T73] 
[ 5008.181902][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5008.181902][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5008.181902][   T73]      ipv6_find_idev+0x102/0x170
[ 5008.181902][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5008.181902][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5008.181902][   T73]      netlink_rcv_skb+0x130/0x360
[ 5008.181902][   T73]      netlink_unicast+0x449/0x710
[ 5008.181902][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5008.181902][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5008.181902][   T73]      ___sys_sendmsg+0xee/0x170
[ 5008.181902][   T73]      __sys_sendmsg+0xcd/0x170
[ 5008.181902][   T73]      do_syscall_64+0xc6/0x1e0
[ 5008.181902][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5008.181902][   T73] 
[ 5008.183841][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5008.183841][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5008.183841][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5008.183841][   T73]      ipv6_find_idev+0x102/0x170
[ 5008.183841][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5008.183841][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5008.183841][   T73]      netlink_rcv_skb+0x130/0x360
[ 5008.183841][   T73]      netlink_unicast+0x449/0x710
[ 5008.183841][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5008.183841][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5008.183841][   T73]      ___sys_sendmsg+0xee/0x170
[ 5008.183841][   T73]      __sys_sendmsg+0xcd/0x170
[ 5008.183841][   T73]      do_syscall_64+0xc6/0x1e0
[ 5008.183841][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5008.183841][   T73] 
[ 5018.263767][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5018.264241][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5018.264241][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5018.264241][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5018.264241][   T73]      fib6_nh_init+0xa22/0x1580
[ 5018.264241][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5018.264241][   T73]      ip6_route_add+0x1c/0x140
[ 5018.264241][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5018.264241][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5018.264241][   T73]      netlink_rcv_skb+0x130/0x360
[ 5018.264241][   T73]      netlink_unicast+0x449/0x710
[ 5018.264241][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5018.264241][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5018.264241][   T73]      ___sys_sendmsg+0xee/0x170
[ 5018.264241][   T73]      __sys_sendmsg+0xcd/0x170
[ 5018.264241][   T73]      do_syscall_64+0xc6/0x1e0
[ 5018.264241][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5018.264241][   T73] 
[ 5018.266183][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5018.266183][   T73]      dst_init+0x84/0x4a0
[ 5018.266183][   T73]      dst_alloc+0x97/0x150
[ 5018.266183][   T73]      ip6_dst_alloc+0x23/0x90
[ 5018.266183][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5018.266183][   T73]      ip6_pol_route+0x56f/0x840
[ 5018.266183][   T73]      fib6_rule_lookup+0x456/0x630
[ 5018.266183][   T73]      ip6_route_input+0x59c/0xa50
[ 5018.266183][   T73]      ipv6_rcv+0x397/0x810
[ 5018.266183][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5018.266183][   T73]      process_backlog+0x101/0x620
[ 5018.266183][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5018.266183][   T73]      net_rx_action+0x495/0xbe0
[ 5018.266183][   T73]      __do_softirq+0x1b5/0x7f6
[ 5018.266183][   T73] 
[ 5018.267848][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5018.267848][   T73]      netdev_get_by_index+0x5e/0x80
[ 5018.267848][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5018.267848][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5018.267848][   T73]      ip6_route_add+0x1c/0x140
[ 5018.267848][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5018.267848][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5018.267848][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5018.267848][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5018.267848][   T73]      netlink_rcv_skb+0x130/0x360
[ 5018.267848][   T73]      netlink_unicast+0x449/0x710
[ 5018.267848][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5018.267848][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5018.267848][   T73]      ___sys_sendmsg+0xee/0x170
[ 5018.267848][   T73]      __sys_sendmsg+0xcd/0x170
[ 5018.267848][   T73]      do_syscall_64+0xc6/0x1e0
[ 5018.267848][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5018.267848][   T73] 
[ 5018.269867][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5018.269867][   T73]      netdev_get_by_index+0x5e/0x80
[ 5018.269867][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5018.269867][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5018.269867][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5018.269867][   T73]      ipv6_add_addr+0x411/0x2000
[ 5018.269867][   T73]      inet6_addr_add+0x30e/0xa40
[ 5018.269867][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5018.269867][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5018.269867][   T73]      netlink_rcv_skb+0x130/0x360
[ 5018.269867][   T73]      netlink_unicast+0x449/0x710
[ 5018.269867][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5018.269867][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5018.269867][   T73]      ___sys_sendmsg+0xee/0x170
[ 5018.269867][   T73]      __sys_sendmsg+0xcd/0x170
[ 5018.269867][   T73]      do_syscall_64+0xc6/0x1e0
[ 5018.269867][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5018.269867][   T73] 
[ 5018.271887][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5018.271887][   T73]      netdev_get_by_index+0x5e/0x80
[ 5018.271887][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5018.271887][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5018.271887][   T73]      ip6_route_add+0x1c/0x140
[ 5018.271887][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5018.271887][   T73]      addrconf_add_dev+0xe2/0x170
[ 5018.271887][   T73]      inet6_addr_add+0x12f/0xa40
[ 5018.271887][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5018.271887][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5018.271887][   T73]      netlink_rcv_skb+0x130/0x360
[ 5018.271887][   T73]      netlink_unicast+0x449/0x710
[ 5018.271887][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5018.271887][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5018.271887][   T73]      ___sys_sendmsg+0xee/0x170
[ 5018.271887][   T73]      __sys_sendmsg+0xcd/0x170
[ 5018.271887][   T73]      do_syscall_64+0xc6/0x1e0
[ 5018.271887][   T73] 
[ 5018.273854][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5018.273854][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5018.273854][   T73]      ipv6_find_idev+0x102/0x170
[ 5018.273854][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5018.273854][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5018.273854][   T73]      netlink_rcv_skb+0x130/0x360
[ 5018.273854][   T73]      netlink_unicast+0x449/0x710
[ 5018.273854][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5018.273854][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5018.273854][   T73]      ___sys_sendmsg+0xee/0x170
[ 5018.273854][   T73]      __sys_sendmsg+0xcd/0x170
[ 5018.273854][   T73]      do_syscall_64+0xc6/0x1e0
[ 5018.273854][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5018.273854][   T73] 
[ 5018.275401][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5018.275401][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5018.275401][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5018.275401][   T73]      ipv6_find_idev+0x102/0x170
[ 5018.275401][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5018.275401][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5018.275401][   T73]      netlink_rcv_skb+0x130/0x360
[ 5018.275401][   T73]      netlink_unicast+0x449/0x710
[ 5018.275401][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5018.275401][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5018.275401][   T73]      ___sys_sendmsg+0xee/0x170
[ 5018.275401][   T73]      __sys_sendmsg+0xcd/0x170
[ 5018.275401][   T73]      do_syscall_64+0xc6/0x1e0
[ 5018.275401][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5018.275401][   T73] 
[ 5018.277098][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5018.277395][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5018.277395][   T73]      netdev_get_by_index+0x5e/0x80
[ 5018.277395][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5018.277395][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5018.277395][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5018.277395][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5018.277395][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5018.277395][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5018.277395][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5018.277395][   T73]      addrconf_dad_begin+0x310/0x670
[ 5018.277395][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5018.277395][   T73]      process_one_work+0x84d/0x18a0
[ 5018.277395][   T73]      worker_thread+0x587/0xd30
[ 5018.277395][   T73]      kthread+0x28a/0x350
[ 5018.277395][   T73]      ret_from_fork+0x31/0x70
[ 5018.277395][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5018.277395][   T73] 
[ 5018.279299][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5018.279299][   T73]      netdev_get_by_index+0x5e/0x80
[ 5018.279299][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5018.279299][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5018.279299][   T73]      ip6_route_add+0x1c/0x140
[ 5018.279299][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5018.279299][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5018.279299][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5018.279299][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5018.279299][   T73]      netlink_rcv_skb+0x130/0x360
[ 5018.279299][   T73]      netlink_unicast+0x449/0x710
[ 5018.279299][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5018.279299][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5018.279299][   T73]      ___sys_sendmsg+0xee/0x170
[ 5018.279299][   T73]      __sys_sendmsg+0xcd/0x170
[ 5018.279299][   T73]      do_syscall_64+0xc6/0x1e0
[ 5018.279299][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5018.279299][   T73] 
[ 5018.281298][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5018.281298][   T73]      netdev_get_by_index+0x5e/0x80
[ 5018.281298][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5018.281298][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5018.281298][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5018.281298][   T73]      ipv6_add_addr+0x411/0x2000
[ 5018.281298][   T73]      inet6_addr_add+0x30e/0xa40
[ 5018.281298][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5018.281298][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5018.281298][   T73]      netlink_rcv_skb+0x130/0x360
[ 5018.281298][   T73]      netlink_unicast+0x449/0x710
[ 5018.281298][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5018.281298][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5018.281298][   T73]      ___sys_sendmsg+0xee/0x170
[ 5018.281298][   T73]      __sys_sendmsg+0xcd/0x170
[ 5018.281298][   T73]      do_syscall_64+0xc6/0x1e0
[ 5018.281298][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5018.281298][   T73] 
[ 5018.283298][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5018.283298][   T73]      netdev_get_by_index+0x5e/0x80
[ 5018.283298][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5018.283298][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5018.283298][   T73]      ip6_route_add+0x1c/0x140
[ 5018.283298][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5018.283298][   T73]      addrconf_add_dev+0xe2/0x170
[ 5018.283298][   T73]      inet6_addr_add+0x12f/0xa40
[ 5018.283298][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5018.283298][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5018.283298][   T73]      netlink_rcv_skb+0x130/0x360
[ 5018.283298][   T73]      netlink_unicast+0x449/0x710
[ 5018.283298][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5018.283298][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5018.283298][   T73]      ___sys_sendmsg+0xee/0x170
[ 5018.283298][   T73]      __sys_sendmsg+0xcd/0x170
[ 5018.283298][   T73]      do_syscall_64+0xc6/0x1e0
[ 5018.283298][   T73] 
[ 5018.285248][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5018.285248][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5018.285248][   T73]      ipv6_find_idev+0x102/0x170
[ 5018.285248][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5018.285248][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5018.285248][   T73]      netlink_rcv_skb+0x130/0x360
[ 5018.285248][   T73]      netlink_unicast+0x449/0x710
[ 5018.285248][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5018.285248][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5018.285248][   T73]      ___sys_sendmsg+0xee/0x170
[ 5018.285248][   T73]      __sys_sendmsg+0xcd/0x170
[ 5018.285248][   T73]      do_syscall_64+0xc6/0x1e0
[ 5018.285248][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5018.285248][   T73] 
[ 5018.286778][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5018.286778][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5018.286778][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5018.286778][   T73]      ipv6_find_idev+0x102/0x170
[ 5018.286778][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5018.286778][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5018.286778][   T73]      netlink_rcv_skb+0x130/0x360
[ 5018.286778][   T73]      netlink_unicast+0x449/0x710
[ 5018.286778][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5018.286778][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5018.286778][   T73]      ___sys_sendmsg+0xee/0x170
[ 5018.286778][   T73]      __sys_sendmsg+0xcd/0x170
[ 5018.286778][   T73]      do_syscall_64+0xc6/0x1e0
[ 5018.286778][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5018.286778][   T73] 
[ 5018.288484][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5018.288766][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5018.288766][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5018.288766][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5018.288766][   T73]      fib6_nh_init+0xa22/0x1580
[ 5018.288766][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5018.288766][   T73]      ip6_route_add+0x1c/0x140
[ 5018.288766][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5018.288766][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5018.288766][   T73]      netlink_rcv_skb+0x130/0x360
[ 5018.288766][   T73]      netlink_unicast+0x449/0x710
[ 5018.288766][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5018.288766][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5018.288766][   T73]      ___sys_sendmsg+0xee/0x170
[ 5018.288766][   T73]      __sys_sendmsg+0xcd/0x170
[ 5018.288766][   T73]      do_syscall_64+0xc6/0x1e0
[ 5018.288766][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5018.288766][   T73] 
[ 5018.290840][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5018.290840][   T73]      dst_init+0x84/0x4a0
[ 5018.290840][   T73]      dst_alloc+0x97/0x150
[ 5018.290840][   T73]      ip6_dst_alloc+0x23/0x90
[ 5018.290840][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5018.290840][   T73]      ip6_pol_route+0x56f/0x840
[ 5018.290840][   T73]      fib6_rule_lookup+0x456/0x630
[ 5018.290840][   T73]      ip6_route_input+0x59c/0xa50
[ 5018.290840][   T73]      ipv6_rcv+0x397/0x810
[ 5018.290840][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5018.290840][   T73]      process_backlog+0x101/0x620
[ 5018.290840][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5018.290840][   T73]      net_rx_action+0x495/0xbe0
[ 5018.290840][   T73]      __do_softirq+0x1b5/0x7f6
[ 5018.290840][   T73] 
[ 5018.292669][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5018.292669][   T73]      netdev_get_by_index+0x5e/0x80
[ 5018.292669][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5018.292669][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5018.292669][   T73]      ip6_route_add+0x1c/0x140
[ 5018.292669][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5018.292669][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5018.292669][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5018.292669][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5018.292669][   T73]      netlink_rcv_skb+0x130/0x360
[ 5018.292669][   T73]      netlink_unicast+0x449/0x710
[ 5018.292669][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5018.292669][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5018.292669][   T73]      ___sys_sendmsg+0xee/0x170
[ 5018.292669][   T73]      __sys_sendmsg+0xcd/0x170
[ 5018.292669][   T73]      do_syscall_64+0xc6/0x1e0
[ 5018.292669][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5018.292669][   T73] 
[ 5018.294914][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5018.294914][   T73]      netdev_get_by_index+0x5e/0x80
[ 5018.294914][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5018.294914][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5018.294914][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5018.294914][   T73]      ipv6_add_addr+0x411/0x2000
[ 5018.294914][   T73]      inet6_addr_add+0x30e/0xa40
[ 5018.294914][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5018.294914][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5018.294914][   T73]      netlink_rcv_skb+0x130/0x360
[ 5018.294914][   T73]      netlink_unicast+0x449/0x710
[ 5018.294914][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5018.294914][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5018.294914][   T73]      ___sys_sendmsg+0xee/0x170
[ 5018.294914][   T73]      __sys_sendmsg+0xcd/0x170
[ 5018.294914][   T73]      do_syscall_64+0xc6/0x1e0
[ 5018.294914][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5018.294914][   T73] 
[ 5018.297243][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5018.297243][   T73]      netdev_get_by_index+0x5e/0x80
[ 5018.297243][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5018.297243][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5018.297243][   T73]      ip6_route_add+0x1c/0x140
[ 5018.297243][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5018.297243][   T73]      addrconf_add_dev+0xe2/0x170
[ 5018.297243][   T73]      inet6_addr_add+0x12f/0xa40
[ 5018.297243][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5018.297243][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5018.297243][   T73]      netlink_rcv_skb+0x130/0x360
[ 5018.297243][   T73]      netlink_unicast+0x449/0x710
[ 5018.297243][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5018.297243][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5018.297243][   T73]      ___sys_sendmsg+0xee/0x170
[ 5018.297243][   T73]      __sys_sendmsg+0xcd/0x170
[ 5018.297243][   T73]      do_syscall_64+0xc6/0x1e0
[ 5018.297243][   T73] 
[ 5018.299414][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5018.299414][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5018.299414][   T73]      ipv6_find_idev+0x102/0x170
[ 5018.299414][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5018.299414][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5018.299414][   T73]      netlink_rcv_skb+0x130/0x360
[ 5018.299414][   T73]      netlink_unicast+0x449/0x710
[ 5018.299414][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5018.299414][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5018.299414][   T73]      ___sys_sendmsg+0xee/0x170
[ 5018.299414][   T73]      __sys_sendmsg+0xcd/0x170
[ 5018.299414][   T73]      do_syscall_64+0xc6/0x1e0
[ 5018.299414][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5018.299414][   T73] 
[ 5018.301155][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5018.301155][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5018.301155][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5018.301155][   T73]      ipv6_find_idev+0x102/0x170
[ 5018.301155][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5018.301155][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5018.301155][   T73]      netlink_rcv_skb+0x130/0x360
[ 5018.301155][   T73]      netlink_unicast+0x449/0x710
[ 5018.301155][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5018.301155][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5018.301155][   T73]      ___sys_sendmsg+0xee/0x170
[ 5018.301155][   T73]      __sys_sendmsg+0xcd/0x170
[ 5018.301155][   T73]      do_syscall_64+0xc6/0x1e0
[ 5018.301155][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5018.301155][   T73] 
[ 5018.303023][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5018.303295][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5018.303295][   T73]      netdev_get_by_index+0x5e/0x80
[ 5018.303295][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5018.303295][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5018.303295][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5018.303295][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5018.303295][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5018.303295][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5018.303295][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5018.303295][   T73]      addrconf_dad_begin+0x310/0x670
[ 5018.303295][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5018.303295][   T73]      process_one_work+0x84d/0x18a0
[ 5018.303295][   T73]      worker_thread+0x587/0xd30
[ 5018.303295][   T73]      kthread+0x28a/0x350
[ 5018.303295][   T73]      ret_from_fork+0x31/0x70
[ 5018.303295][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5018.303295][   T73] 
[ 5018.305534][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5018.305534][   T73]      netdev_get_by_index+0x5e/0x80
[ 5018.305534][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5018.305534][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5018.305534][   T73]      ip6_route_add+0x1c/0x140
[ 5018.305534][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5018.305534][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5018.305534][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5018.305534][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5018.305534][   T73]      netlink_rcv_skb+0x130/0x360
[ 5018.305534][   T73]      netlink_unicast+0x449/0x710
[ 5018.305534][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5018.305534][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5018.305534][   T73]      ___sys_sendmsg+0xee/0x170
[ 5018.305534][   T73]      __sys_sendmsg+0xcd/0x170
[ 5018.305534][   T73]      do_syscall_64+0xc6/0x1e0
[ 5018.305534][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5018.305534][   T73] 
[ 5018.307656][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5018.307656][   T73]      netdev_get_by_index+0x5e/0x80
[ 5018.307656][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5018.307656][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5018.307656][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5018.307656][   T73]      ipv6_add_addr+0x411/0x2000
[ 5018.307656][   T73]      inet6_addr_add+0x30e/0xa40
[ 5018.307656][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5018.307656][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5018.307656][   T73]      netlink_rcv_skb+0x130/0x360
[ 5018.307656][   T73]      netlink_unicast+0x449/0x710
[ 5018.307656][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5018.307656][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5018.307656][   T73]      ___sys_sendmsg+0xee/0x170
[ 5018.307656][   T73]      __sys_sendmsg+0xcd/0x170
[ 5018.307656][   T73]      do_syscall_64+0xc6/0x1e0
[ 5018.307656][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5018.307656][   T73] 
[ 5018.309901][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5018.309901][   T73]      netdev_get_by_index+0x5e/0x80
[ 5018.309901][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5018.309901][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5018.309901][   T73]      ip6_route_add+0x1c/0x140
[ 5018.309901][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5018.309901][   T73]      addrconf_add_dev+0xe2/0x170
[ 5018.309901][   T73]      inet6_addr_add+0x12f/0xa40
[ 5018.309901][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5018.309901][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5018.309901][   T73]      netlink_rcv_skb+0x130/0x360
[ 5018.309901][   T73]      netlink_unicast+0x449/0x710
[ 5018.309901][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5018.309901][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5018.309901][   T73]      ___sys_sendmsg+0xee/0x170
[ 5018.309901][   T73]      __sys_sendmsg+0xcd/0x170
[ 5018.309901][   T73]      do_syscall_64+0xc6/0x1e0
[ 5018.309901][   T73] 
[ 5018.312625][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5018.312625][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5018.312625][   T73]      ipv6_find_idev+0x102/0x170
[ 5018.312625][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5018.312625][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5018.312625][   T73]      netlink_rcv_skb+0x130/0x360
[ 5018.312625][   T73]      netlink_unicast+0x449/0x710
[ 5018.312625][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5018.312625][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5018.312625][   T73]      ___sys_sendmsg+0xee/0x170
[ 5018.312625][   T73]      __sys_sendmsg+0xcd/0x170
[ 5018.312625][   T73]      do_syscall_64+0xc6/0x1e0
[ 5018.312625][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5018.312625][   T73] 
[ 5018.316898][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5018.316898][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5018.316898][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5018.316898][   T73]      ipv6_find_idev+0x102/0x170
[ 5018.316898][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5018.316898][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5018.316898][   T73]      netlink_rcv_skb+0x130/0x360
[ 5018.316898][   T73]      netlink_unicast+0x449/0x710
[ 5018.316898][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5018.316898][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5018.316898][   T73]      ___sys_sendmsg+0xee/0x170
[ 5018.316898][   T73]      __sys_sendmsg+0xcd/0x170
[ 5018.316898][   T73]      do_syscall_64+0xc6/0x1e0
[ 5018.316898][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5018.316898][   T73] 
[ 5028.455765][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5028.456267][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5028.456267][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5028.456267][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5028.456267][   T73]      fib6_nh_init+0xa22/0x1580
[ 5028.456267][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5028.456267][   T73]      ip6_route_add+0x1c/0x140
[ 5028.456267][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5028.456267][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5028.456267][   T73]      netlink_rcv_skb+0x130/0x360
[ 5028.456267][   T73]      netlink_unicast+0x449/0x710
[ 5028.456267][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5028.456267][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5028.456267][   T73]      ___sys_sendmsg+0xee/0x170
[ 5028.456267][   T73]      __sys_sendmsg+0xcd/0x170
[ 5028.456267][   T73]      do_syscall_64+0xc6/0x1e0
[ 5028.456267][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5028.456267][   T73] 
[ 5028.458423][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5028.458423][   T73]      dst_init+0x84/0x4a0
[ 5028.458423][   T73]      dst_alloc+0x97/0x150
[ 5028.458423][   T73]      ip6_dst_alloc+0x23/0x90
[ 5028.458423][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5028.458423][   T73]      ip6_pol_route+0x56f/0x840
[ 5028.458423][   T73]      fib6_rule_lookup+0x456/0x630
[ 5028.458423][   T73]      ip6_route_input+0x59c/0xa50
[ 5028.458423][   T73]      ipv6_rcv+0x397/0x810
[ 5028.458423][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5028.458423][   T73]      process_backlog+0x101/0x620
[ 5028.458423][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5028.458423][   T73]      net_rx_action+0x495/0xbe0
[ 5028.458423][   T73]      __do_softirq+0x1b5/0x7f6
[ 5028.458423][   T73] 
[ 5028.460267][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5028.460267][   T73]      netdev_get_by_index+0x5e/0x80
[ 5028.460267][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5028.460267][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5028.460267][   T73]      ip6_route_add+0x1c/0x140
[ 5028.460267][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5028.460267][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5028.460267][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5028.460267][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5028.460267][   T73]      netlink_rcv_skb+0x130/0x360
[ 5028.460267][   T73]      netlink_unicast+0x449/0x710
[ 5028.460267][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5028.460267][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5028.460267][   T73]      ___sys_sendmsg+0xee/0x170
[ 5028.460267][   T73]      __sys_sendmsg+0xcd/0x170
[ 5028.460267][   T73]      do_syscall_64+0xc6/0x1e0
[ 5028.460267][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5028.460267][   T73] 
[ 5028.462523][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5028.462523][   T73]      netdev_get_by_index+0x5e/0x80
[ 5028.462523][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5028.462523][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5028.462523][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5028.462523][   T73]      ipv6_add_addr+0x411/0x2000
[ 5028.462523][   T73]      inet6_addr_add+0x30e/0xa40
[ 5028.462523][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5028.462523][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5028.462523][   T73]      netlink_rcv_skb+0x130/0x360
[ 5028.462523][   T73]      netlink_unicast+0x449/0x710
[ 5028.462523][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5028.462523][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5028.462523][   T73]      ___sys_sendmsg+0xee/0x170
[ 5028.462523][   T73]      __sys_sendmsg+0xcd/0x170
[ 5028.462523][   T73]      do_syscall_64+0xc6/0x1e0
[ 5028.462523][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5028.462523][   T73] 
[ 5028.464758][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5028.464758][   T73]      netdev_get_by_index+0x5e/0x80
[ 5028.464758][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5028.464758][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5028.464758][   T73]      ip6_route_add+0x1c/0x140
[ 5028.464758][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5028.464758][   T73]      addrconf_add_dev+0xe2/0x170
[ 5028.464758][   T73]      inet6_addr_add+0x12f/0xa40
[ 5028.464758][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5028.464758][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5028.464758][   T73]      netlink_rcv_skb+0x130/0x360
[ 5028.464758][   T73]      netlink_unicast+0x449/0x710
[ 5028.464758][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5028.464758][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5028.464758][   T73]      ___sys_sendmsg+0xee/0x170
[ 5028.464758][   T73]      __sys_sendmsg+0xcd/0x170
[ 5028.464758][   T73]      do_syscall_64+0xc6/0x1e0
[ 5028.464758][   T73] 
[ 5028.466966][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5028.466966][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5028.466966][   T73]      ipv6_find_idev+0x102/0x170
[ 5028.466966][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5028.466966][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5028.466966][   T73]      netlink_rcv_skb+0x130/0x360
[ 5028.466966][   T73]      netlink_unicast+0x449/0x710
[ 5028.466966][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5028.466966][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5028.466966][   T73]      ___sys_sendmsg+0xee/0x170
[ 5028.466966][   T73]      __sys_sendmsg+0xcd/0x170
[ 5028.466966][   T73]      do_syscall_64+0xc6/0x1e0
[ 5028.466966][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5028.466966][   T73] 
[ 5028.468685][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5028.468685][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5028.468685][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5028.468685][   T73]      ipv6_find_idev+0x102/0x170
[ 5028.468685][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5028.468685][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5028.468685][   T73]      netlink_rcv_skb+0x130/0x360
[ 5028.468685][   T73]      netlink_unicast+0x449/0x710
[ 5028.468685][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5028.468685][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5028.468685][   T73]      ___sys_sendmsg+0xee/0x170
[ 5028.468685][   T73]      __sys_sendmsg+0xcd/0x170
[ 5028.468685][   T73]      do_syscall_64+0xc6/0x1e0
[ 5028.468685][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5028.468685][   T73] 
[ 5028.470579][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5028.470903][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5028.470903][   T73]      netdev_get_by_index+0x5e/0x80
[ 5028.470903][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5028.470903][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5028.470903][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5028.470903][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5028.470903][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5028.470903][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5028.470903][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5028.470903][   T73]      addrconf_dad_begin+0x310/0x670
[ 5028.470903][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5028.470903][   T73]      process_one_work+0x84d/0x18a0
[ 5028.470903][   T73]      worker_thread+0x587/0xd30
[ 5028.470903][   T73]      kthread+0x28a/0x350
[ 5028.470903][   T73]      ret_from_fork+0x31/0x70
[ 5028.470903][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5028.470903][   T73] 
[ 5028.473067][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5028.473067][   T73]      netdev_get_by_index+0x5e/0x80
[ 5028.473067][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5028.473067][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5028.473067][   T73]      ip6_route_add+0x1c/0x140
[ 5028.473067][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5028.473067][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5028.473067][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5028.473067][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5028.473067][   T73]      netlink_rcv_skb+0x130/0x360
[ 5028.473067][   T73]      netlink_unicast+0x449/0x710
[ 5028.473067][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5028.473067][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5028.473067][   T73]      ___sys_sendmsg+0xee/0x170
[ 5028.473067][   T73]      __sys_sendmsg+0xcd/0x170
[ 5028.473067][   T73]      do_syscall_64+0xc6/0x1e0
[ 5028.473067][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5028.473067][   T73] 
[ 5028.475326][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5028.475326][   T73]      netdev_get_by_index+0x5e/0x80
[ 5028.475326][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5028.475326][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5028.475326][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5028.475326][   T73]      ipv6_add_addr+0x411/0x2000
[ 5028.475326][   T73]      inet6_addr_add+0x30e/0xa40
[ 5028.475326][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5028.475326][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5028.475326][   T73]      netlink_rcv_skb+0x130/0x360
[ 5028.475326][   T73]      netlink_unicast+0x449/0x710
[ 5028.475326][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5028.475326][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5028.475326][   T73]      ___sys_sendmsg+0xee/0x170
[ 5028.475326][   T73]      __sys_sendmsg+0xcd/0x170
[ 5028.475326][   T73]      do_syscall_64+0xc6/0x1e0
[ 5028.475326][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5028.475326][   T73] 
[ 5028.477572][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5028.477572][   T73]      netdev_get_by_index+0x5e/0x80
[ 5028.477572][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5028.477572][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5028.477572][   T73]      ip6_route_add+0x1c/0x140
[ 5028.477572][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5028.477572][   T73]      addrconf_add_dev+0xe2/0x170
[ 5028.477572][   T73]      inet6_addr_add+0x12f/0xa40
[ 5028.477572][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5028.477572][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5028.477572][   T73]      netlink_rcv_skb+0x130/0x360
[ 5028.477572][   T73]      netlink_unicast+0x449/0x710
[ 5028.477572][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5028.477572][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5028.477572][   T73]      ___sys_sendmsg+0xee/0x170
[ 5028.477572][   T73]      __sys_sendmsg+0xcd/0x170
[ 5028.477572][   T73]      do_syscall_64+0xc6/0x1e0
[ 5028.477572][   T73] 
[ 5028.479770][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5028.479770][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5028.479770][   T73]      ipv6_find_idev+0x102/0x170
[ 5028.479770][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5028.479770][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5028.479770][   T73]      netlink_rcv_skb+0x130/0x360
[ 5028.479770][   T73]      netlink_unicast+0x449/0x710
[ 5028.479770][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5028.479770][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5028.479770][   T73]      ___sys_sendmsg+0xee/0x170
[ 5028.479770][   T73]      __sys_sendmsg+0xcd/0x170
[ 5028.479770][   T73]      do_syscall_64+0xc6/0x1e0
[ 5028.479770][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5028.479770][   T73] 
[ 5028.481493][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5028.481493][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5028.481493][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5028.481493][   T73]      ipv6_find_idev+0x102/0x170
[ 5028.481493][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5028.481493][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5028.481493][   T73]      netlink_rcv_skb+0x130/0x360
[ 5028.481493][   T73]      netlink_unicast+0x449/0x710
[ 5028.481493][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5028.481493][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5028.481493][   T73]      ___sys_sendmsg+0xee/0x170
[ 5028.481493][   T73]      __sys_sendmsg+0xcd/0x170
[ 5028.481493][   T73]      do_syscall_64+0xc6/0x1e0
[ 5028.481493][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5028.481493][   T73] 
[ 5028.483379][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5028.483685][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5028.483685][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5028.483685][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5028.483685][   T73]      fib6_nh_init+0xa22/0x1580
[ 5028.483685][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5028.483685][   T73]      ip6_route_add+0x1c/0x140
[ 5028.483685][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5028.483685][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5028.483685][   T73]      netlink_rcv_skb+0x130/0x360
[ 5028.483685][   T73]      netlink_unicast+0x449/0x710
[ 5028.483685][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5028.483685][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5028.483685][   T73]      ___sys_sendmsg+0xee/0x170
[ 5028.483685][   T73]      __sys_sendmsg+0xcd/0x170
[ 5028.483685][   T73]      do_syscall_64+0xc6/0x1e0
[ 5028.483685][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5028.483685][   T73] 
[ 5028.485943][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5028.485943][   T73]      dst_init+0x84/0x4a0
[ 5028.485943][   T73]      dst_alloc+0x97/0x150
[ 5028.485943][   T73]      ip6_dst_alloc+0x23/0x90
[ 5028.485943][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5028.485943][   T73]      ip6_pol_route+0x56f/0x840
[ 5028.485943][   T73]      fib6_rule_lookup+0x456/0x630
[ 5028.485943][   T73]      ip6_route_input+0x59c/0xa50
[ 5028.485943][   T73]      ipv6_rcv+0x397/0x810
[ 5028.485943][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5028.485943][   T73]      process_backlog+0x101/0x620
[ 5028.485943][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5028.485943][   T73]      net_rx_action+0x495/0xbe0
[ 5028.485943][   T73]      __do_softirq+0x1b5/0x7f6
[ 5028.485943][   T73] 
[ 5028.488032][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5028.488032][   T73]      netdev_get_by_index+0x5e/0x80
[ 5028.488032][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5028.488032][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5028.488032][   T73]      ip6_route_add+0x1c/0x140
[ 5028.488032][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5028.488032][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5028.488032][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5028.488032][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5028.488032][   T73]      netlink_rcv_skb+0x130/0x360
[ 5028.488032][   T73]      netlink_unicast+0x449/0x710
[ 5028.488032][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5028.488032][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5028.488032][   T73]      ___sys_sendmsg+0xee/0x170
[ 5028.488032][   T73]      __sys_sendmsg+0xcd/0x170
[ 5028.488032][   T73]      do_syscall_64+0xc6/0x1e0
[ 5028.488032][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5028.488032][   T73] 
[ 5028.490536][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5028.490536][   T73]      netdev_get_by_index+0x5e/0x80
[ 5028.490536][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5028.490536][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5028.490536][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5028.490536][   T73]      ipv6_add_addr+0x411/0x2000
[ 5028.490536][   T73]      inet6_addr_add+0x30e/0xa40
[ 5028.490536][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5028.490536][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5028.490536][   T73]      netlink_rcv_skb+0x130/0x360
[ 5028.490536][   T73]      netlink_unicast+0x449/0x710
[ 5028.490536][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5028.490536][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5028.490536][   T73]      ___sys_sendmsg+0xee/0x170
[ 5028.490536][   T73]      __sys_sendmsg+0xcd/0x170
[ 5028.490536][   T73]      do_syscall_64+0xc6/0x1e0
[ 5028.490536][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5028.490536][   T73] 
[ 5028.492971][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5028.492971][   T73]      netdev_get_by_index+0x5e/0x80
[ 5028.492971][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5028.492971][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5028.492971][   T73]      ip6_route_add+0x1c/0x140
[ 5028.492971][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5028.492971][   T73]      addrconf_add_dev+0xe2/0x170
[ 5028.492971][   T73]      inet6_addr_add+0x12f/0xa40
[ 5028.492971][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5028.492971][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5028.492971][   T73]      netlink_rcv_skb+0x130/0x360
[ 5028.492971][   T73]      netlink_unicast+0x449/0x710
[ 5028.492971][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5028.492971][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5028.492971][   T73]      ___sys_sendmsg+0xee/0x170
[ 5028.492971][   T73]      __sys_sendmsg+0xcd/0x170
[ 5028.492971][   T73]      do_syscall_64+0xc6/0x1e0
[ 5028.492971][   T73] 
[ 5028.495462][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5028.495462][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5028.495462][   T73]      ipv6_find_idev+0x102/0x170
[ 5028.495462][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5028.495462][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5028.495462][   T73]      netlink_rcv_skb+0x130/0x360
[ 5028.495462][   T73]      netlink_unicast+0x449/0x710
[ 5028.495462][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5028.495462][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5028.495462][   T73]      ___sys_sendmsg+0xee/0x170
[ 5028.495462][   T73]      __sys_sendmsg+0xcd/0x170
[ 5028.495462][   T73]      do_syscall_64+0xc6/0x1e0
[ 5028.495462][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5028.495462][   T73] 
[ 5028.497421][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5028.497421][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5028.497421][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5028.497421][   T73]      ipv6_find_idev+0x102/0x170
[ 5028.497421][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5028.497421][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5028.497421][   T73]      netlink_rcv_skb+0x130/0x360
[ 5028.497421][   T73]      netlink_unicast+0x449/0x710
[ 5028.497421][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5028.497421][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5028.497421][   T73]      ___sys_sendmsg+0xee/0x170
[ 5028.497421][   T73]      __sys_sendmsg+0xcd/0x170
[ 5028.497421][   T73]      do_syscall_64+0xc6/0x1e0
[ 5028.497421][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5028.497421][   T73] 
[ 5028.499881][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5028.500190][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5028.500190][   T73]      netdev_get_by_index+0x5e/0x80
[ 5028.500190][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5028.500190][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5028.500190][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5028.500190][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5028.500190][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5028.500190][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5028.500190][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5028.500190][   T73]      addrconf_dad_begin+0x310/0x670
[ 5028.500190][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5028.500190][   T73]      process_one_work+0x84d/0x18a0
[ 5028.500190][   T73]      worker_thread+0x587/0xd30
[ 5028.500190][   T73]      kthread+0x28a/0x350
[ 5028.500190][   T73]      ret_from_fork+0x31/0x70
[ 5028.500190][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5028.500190][   T73] 
[ 5028.502353][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5028.502353][   T73]      netdev_get_by_index+0x5e/0x80
[ 5028.502353][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5028.502353][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5028.502353][   T73]      ip6_route_add+0x1c/0x140
[ 5028.502353][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5028.502353][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5028.502353][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5028.502353][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5028.502353][   T73]      netlink_rcv_skb+0x130/0x360
[ 5028.502353][   T73]      netlink_unicast+0x449/0x710
[ 5028.502353][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5028.502353][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5028.502353][   T73]      ___sys_sendmsg+0xee/0x170
[ 5028.502353][   T73]      __sys_sendmsg+0xcd/0x170
[ 5028.502353][   T73]      do_syscall_64+0xc6/0x1e0
[ 5028.502353][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5028.502353][   T73] 
[ 5028.504716][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5028.504716][   T73]      netdev_get_by_index+0x5e/0x80
[ 5028.504716][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5028.504716][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5028.504716][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5028.504716][   T73]      ipv6_add_addr+0x411/0x2000
[ 5028.504716][   T73]      inet6_addr_add+0x30e/0xa40
[ 5028.504716][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5028.504716][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5028.504716][   T73]      netlink_rcv_skb+0x130/0x360
[ 5028.504716][   T73]      netlink_unicast+0x449/0x710
[ 5028.504716][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5028.504716][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5028.504716][   T73]      ___sys_sendmsg+0xee/0x170
[ 5028.504716][   T73]      __sys_sendmsg+0xcd/0x170
[ 5028.504716][   T73]      do_syscall_64+0xc6/0x1e0
[ 5028.504716][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5028.504716][   T73] 
[ 5028.507213][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5028.507213][   T73]      netdev_get_by_index+0x5e/0x80
[ 5028.507213][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5028.507213][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5028.507213][   T73]      ip6_route_add+0x1c/0x140
[ 5028.507213][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5028.507213][   T73]      addrconf_add_dev+0xe2/0x170
[ 5028.507213][   T73]      inet6_addr_add+0x12f/0xa40
[ 5028.507213][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5028.507213][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5028.507213][   T73]      netlink_rcv_skb+0x130/0x360
[ 5028.507213][   T73]      netlink_unicast+0x449/0x710
[ 5028.507213][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5028.507213][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5028.507213][   T73]      ___sys_sendmsg+0xee/0x170
[ 5028.507213][   T73]      __sys_sendmsg+0xcd/0x170
[ 5028.507213][   T73]      do_syscall_64+0xc6/0x1e0
[ 5028.507213][   T73] 
[ 5028.509681][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5028.509681][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5028.509681][   T73]      ipv6_find_idev+0x102/0x170
[ 5028.509681][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5028.509681][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5028.509681][   T73]      netlink_rcv_skb+0x130/0x360
[ 5028.509681][   T73]      netlink_unicast+0x449/0x710
[ 5028.509681][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5028.509681][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5028.509681][   T73]      ___sys_sendmsg+0xee/0x170
[ 5028.509681][   T73]      __sys_sendmsg+0xcd/0x170
[ 5028.509681][   T73]      do_syscall_64+0xc6/0x1e0
[ 5028.509681][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5028.509681][   T73] 
[ 5028.511603][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5028.511603][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5028.511603][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5028.511603][   T73]      ipv6_find_idev+0x102/0x170
[ 5028.511603][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5028.511603][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5028.511603][   T73]      netlink_rcv_skb+0x130/0x360
[ 5028.511603][   T73]      netlink_unicast+0x449/0x710
[ 5028.511603][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5028.511603][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5028.511603][   T73]      ___sys_sendmsg+0xee/0x170
[ 5028.511603][   T73]      __sys_sendmsg+0xcd/0x170
[ 5028.511603][   T73]      do_syscall_64+0xc6/0x1e0
[ 5028.511603][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5028.511603][   T73] 
[ 5038.535722][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5038.536242][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5038.536242][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5038.536242][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5038.536242][   T73]      fib6_nh_init+0xa22/0x1580
[ 5038.536242][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5038.536242][   T73]      ip6_route_add+0x1c/0x140
[ 5038.536242][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5038.536242][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5038.536242][   T73]      netlink_rcv_skb+0x130/0x360
[ 5038.536242][   T73]      netlink_unicast+0x449/0x710
[ 5038.536242][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5038.536242][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5038.536242][   T73]      ___sys_sendmsg+0xee/0x170
[ 5038.536242][   T73]      __sys_sendmsg+0xcd/0x170
[ 5038.536242][   T73]      do_syscall_64+0xc6/0x1e0
[ 5038.536242][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5038.536242][   T73] 
[ 5038.538377][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5038.538377][   T73]      dst_init+0x84/0x4a0
[ 5038.538377][   T73]      dst_alloc+0x97/0x150
[ 5038.538377][   T73]      ip6_dst_alloc+0x23/0x90
[ 5038.538377][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5038.538377][   T73]      ip6_pol_route+0x56f/0x840
[ 5038.538377][   T73]      fib6_rule_lookup+0x456/0x630
[ 5038.538377][   T73]      ip6_route_input+0x59c/0xa50
[ 5038.538377][   T73]      ipv6_rcv+0x397/0x810
[ 5038.538377][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5038.538377][   T73]      process_backlog+0x101/0x620
[ 5038.538377][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5038.538377][   T73]      net_rx_action+0x495/0xbe0
[ 5038.538377][   T73]      __do_softirq+0x1b5/0x7f6
[ 5038.538377][   T73] 
[ 5038.540201][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5038.540201][   T73]      netdev_get_by_index+0x5e/0x80
[ 5038.540201][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5038.540201][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5038.540201][   T73]      ip6_route_add+0x1c/0x140
[ 5038.540201][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5038.540201][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5038.540201][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5038.540201][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5038.540201][   T73]      netlink_rcv_skb+0x130/0x360
[ 5038.540201][   T73]      netlink_unicast+0x449/0x710
[ 5038.540201][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5038.540201][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5038.540201][   T73]      ___sys_sendmsg+0xee/0x170
[ 5038.540201][   T73]      __sys_sendmsg+0xcd/0x170
[ 5038.540201][   T73]      do_syscall_64+0xc6/0x1e0
[ 5038.540201][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5038.540201][   T73] 
[ 5038.542436][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5038.542436][   T73]      netdev_get_by_index+0x5e/0x80
[ 5038.542436][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5038.542436][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5038.542436][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5038.542436][   T73]      ipv6_add_addr+0x411/0x2000
[ 5038.542436][   T73]      inet6_addr_add+0x30e/0xa40
[ 5038.542436][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5038.542436][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5038.542436][   T73]      netlink_rcv_skb+0x130/0x360
[ 5038.542436][   T73]      netlink_unicast+0x449/0x710
[ 5038.542436][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5038.542436][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5038.542436][   T73]      ___sys_sendmsg+0xee/0x170
[ 5038.542436][   T73]      __sys_sendmsg+0xcd/0x170
[ 5038.542436][   T73]      do_syscall_64+0xc6/0x1e0
[ 5038.542436][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5038.542436][   T73] 
[ 5038.544644][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5038.544644][   T73]      netdev_get_by_index+0x5e/0x80
[ 5038.544644][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5038.544644][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5038.544644][   T73]      ip6_route_add+0x1c/0x140
[ 5038.544644][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5038.544644][   T73]      addrconf_add_dev+0xe2/0x170
[ 5038.544644][   T73]      inet6_addr_add+0x12f/0xa40
[ 5038.544644][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5038.544644][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5038.544644][   T73]      netlink_rcv_skb+0x130/0x360
[ 5038.544644][   T73]      netlink_unicast+0x449/0x710
[ 5038.544644][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5038.544644][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5038.544644][   T73]      ___sys_sendmsg+0xee/0x170
[ 5038.544644][   T73]      __sys_sendmsg+0xcd/0x170
[ 5038.544644][   T73]      do_syscall_64+0xc6/0x1e0
[ 5038.544644][   T73] 
[ 5038.546842][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5038.546842][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5038.546842][   T73]      ipv6_find_idev+0x102/0x170
[ 5038.546842][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5038.546842][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5038.546842][   T73]      netlink_rcv_skb+0x130/0x360
[ 5038.546842][   T73]      netlink_unicast+0x449/0x710
[ 5038.546842][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5038.546842][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5038.546842][   T73]      ___sys_sendmsg+0xee/0x170
[ 5038.546842][   T73]      __sys_sendmsg+0xcd/0x170
[ 5038.546842][   T73]      do_syscall_64+0xc6/0x1e0
[ 5038.546842][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5038.546842][   T73] 
[ 5038.548565][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5038.548565][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5038.548565][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5038.548565][   T73]      ipv6_find_idev+0x102/0x170
[ 5038.548565][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5038.548565][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5038.548565][   T73]      netlink_rcv_skb+0x130/0x360
[ 5038.548565][   T73]      netlink_unicast+0x449/0x710
[ 5038.548565][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5038.548565][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5038.548565][   T73]      ___sys_sendmsg+0xee/0x170
[ 5038.548565][   T73]      __sys_sendmsg+0xcd/0x170
[ 5038.548565][   T73]      do_syscall_64+0xc6/0x1e0
[ 5038.548565][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5038.548565][   T73] 
[ 5038.550495][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5038.550813][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5038.550813][   T73]      netdev_get_by_index+0x5e/0x80
[ 5038.550813][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5038.550813][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5038.550813][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5038.550813][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5038.550813][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5038.550813][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5038.550813][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5038.550813][   T73]      addrconf_dad_begin+0x310/0x670
[ 5038.550813][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5038.550813][   T73]      process_one_work+0x84d/0x18a0
[ 5038.550813][   T73]      worker_thread+0x587/0xd30
[ 5038.550813][   T73]      kthread+0x28a/0x350
[ 5038.550813][   T73]      ret_from_fork+0x31/0x70
[ 5038.550813][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5038.550813][   T73] 
[ 5038.552974][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5038.552974][   T73]      netdev_get_by_index+0x5e/0x80
[ 5038.552974][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5038.552974][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5038.552974][   T73]      ip6_route_add+0x1c/0x140
[ 5038.552974][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5038.552974][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5038.552974][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5038.552974][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5038.552974][   T73]      netlink_rcv_skb+0x130/0x360
[ 5038.552974][   T73]      netlink_unicast+0x449/0x710
[ 5038.552974][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5038.552974][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5038.552974][   T73]      ___sys_sendmsg+0xee/0x170
[ 5038.552974][   T73]      __sys_sendmsg+0xcd/0x170
[ 5038.552974][   T73]      do_syscall_64+0xc6/0x1e0
[ 5038.552974][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5038.552974][   T73] 
[ 5038.555235][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5038.555235][   T73]      netdev_get_by_index+0x5e/0x80
[ 5038.555235][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5038.555235][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5038.555235][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5038.555235][   T73]      ipv6_add_addr+0x411/0x2000
[ 5038.555235][   T73]      inet6_addr_add+0x30e/0xa40
[ 5038.555235][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5038.555235][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5038.555235][   T73]      netlink_rcv_skb+0x130/0x360
[ 5038.555235][   T73]      netlink_unicast+0x449/0x710
[ 5038.555235][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5038.555235][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5038.555235][   T73]      ___sys_sendmsg+0xee/0x170
[ 5038.555235][   T73]      __sys_sendmsg+0xcd/0x170
[ 5038.555235][   T73]      do_syscall_64+0xc6/0x1e0
[ 5038.555235][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5038.555235][   T73] 
[ 5038.557485][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5038.557485][   T73]      netdev_get_by_index+0x5e/0x80
[ 5038.557485][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5038.557485][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5038.557485][   T73]      ip6_route_add+0x1c/0x140
[ 5038.557485][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5038.557485][   T73]      addrconf_add_dev+0xe2/0x170
[ 5038.557485][   T73]      inet6_addr_add+0x12f/0xa40
[ 5038.557485][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5038.557485][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5038.557485][   T73]      netlink_rcv_skb+0x130/0x360
[ 5038.557485][   T73]      netlink_unicast+0x449/0x710
[ 5038.557485][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5038.557485][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5038.557485][   T73]      ___sys_sendmsg+0xee/0x170
[ 5038.557485][   T73]      __sys_sendmsg+0xcd/0x170
[ 5038.557485][   T73]      do_syscall_64+0xc6/0x1e0
[ 5038.557485][   T73] 
[ 5038.559700][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5038.559700][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5038.559700][   T73]      ipv6_find_idev+0x102/0x170
[ 5038.559700][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5038.559700][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5038.559700][   T73]      netlink_rcv_skb+0x130/0x360
[ 5038.559700][   T73]      netlink_unicast+0x449/0x710
[ 5038.559700][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5038.559700][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5038.559700][   T73]      ___sys_sendmsg+0xee/0x170
[ 5038.559700][   T73]      __sys_sendmsg+0xcd/0x170
[ 5038.559700][   T73]      do_syscall_64+0xc6/0x1e0
[ 5038.559700][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5038.559700][   T73] 
[ 5038.561434][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5038.561434][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5038.561434][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5038.561434][   T73]      ipv6_find_idev+0x102/0x170
[ 5038.561434][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5038.561434][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5038.561434][   T73]      netlink_rcv_skb+0x130/0x360
[ 5038.561434][   T73]      netlink_unicast+0x449/0x710
[ 5038.561434][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5038.561434][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5038.561434][   T73]      ___sys_sendmsg+0xee/0x170
[ 5038.561434][   T73]      __sys_sendmsg+0xcd/0x170
[ 5038.561434][   T73]      do_syscall_64+0xc6/0x1e0
[ 5038.561434][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5038.561434][   T73] 
[ 5038.563327][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5038.563616][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5038.563616][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5038.563616][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5038.563616][   T73]      fib6_nh_init+0xa22/0x1580
[ 5038.563616][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5038.563616][   T73]      ip6_route_add+0x1c/0x140
[ 5038.563616][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5038.563616][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5038.563616][   T73]      netlink_rcv_skb+0x130/0x360
[ 5038.563616][   T73]      netlink_unicast+0x449/0x710
[ 5038.563616][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5038.563616][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5038.563616][   T73]      ___sys_sendmsg+0xee/0x170
[ 5038.563616][   T73]      __sys_sendmsg+0xcd/0x170
[ 5038.563616][   T73]      do_syscall_64+0xc6/0x1e0
[ 5038.563616][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5038.563616][   T73] 
[ 5038.565880][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5038.565880][   T73]      dst_init+0x84/0x4a0
[ 5038.565880][   T73]      dst_alloc+0x97/0x150
[ 5038.565880][   T73]      ip6_dst_alloc+0x23/0x90
[ 5038.565880][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5038.565880][   T73]      ip6_pol_route+0x56f/0x840
[ 5038.565880][   T73]      fib6_rule_lookup+0x456/0x630
[ 5038.565880][   T73]      ip6_route_input+0x59c/0xa50
[ 5038.565880][   T73]      ipv6_rcv+0x397/0x810
[ 5038.565880][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5038.565880][   T73]      process_backlog+0x101/0x620
[ 5038.565880][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5038.565880][   T73]      net_rx_action+0x495/0xbe0
[ 5038.565880][   T73]      __do_softirq+0x1b5/0x7f6
[ 5038.565880][   T73] 
[ 5038.567775][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5038.567775][   T73]      netdev_get_by_index+0x5e/0x80
[ 5038.567775][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5038.567775][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5038.567775][   T73]      ip6_route_add+0x1c/0x140
[ 5038.567775][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5038.567775][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5038.567775][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5038.567775][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5038.567775][   T73]      netlink_rcv_skb+0x130/0x360
[ 5038.567775][   T73]      netlink_unicast+0x449/0x710
[ 5038.567775][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5038.567775][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5038.567775][   T73]      ___sys_sendmsg+0xee/0x170
[ 5038.567775][   T73]      __sys_sendmsg+0xcd/0x170
[ 5038.567775][   T73]      do_syscall_64+0xc6/0x1e0
[ 5038.567775][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5038.567775][   T73] 
[ 5038.570143][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5038.570143][   T73]      netdev_get_by_index+0x5e/0x80
[ 5038.570143][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5038.570143][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5038.570143][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5038.570143][   T73]      ipv6_add_addr+0x411/0x2000
[ 5038.570143][   T73]      inet6_addr_add+0x30e/0xa40
[ 5038.570143][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5038.570143][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5038.570143][   T73]      netlink_rcv_skb+0x130/0x360
[ 5038.570143][   T73]      netlink_unicast+0x449/0x710
[ 5038.570143][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5038.570143][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5038.570143][   T73]      ___sys_sendmsg+0xee/0x170
[ 5038.570143][   T73]      __sys_sendmsg+0xcd/0x170
[ 5038.570143][   T73]      do_syscall_64+0xc6/0x1e0
[ 5038.570143][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5038.570143][   T73] 
[ 5038.572508][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5038.572508][   T73]      netdev_get_by_index+0x5e/0x80
[ 5038.572508][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5038.572508][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5038.572508][   T73]      ip6_route_add+0x1c/0x140
[ 5038.572508][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5038.572508][   T73]      addrconf_add_dev+0xe2/0x170
[ 5038.572508][   T73]      inet6_addr_add+0x12f/0xa40
[ 5038.572508][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5038.572508][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5038.572508][   T73]      netlink_rcv_skb+0x130/0x360
[ 5038.572508][   T73]      netlink_unicast+0x449/0x710
[ 5038.572508][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5038.572508][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5038.572508][   T73]      ___sys_sendmsg+0xee/0x170
[ 5038.572508][   T73]      __sys_sendmsg+0xcd/0x170
[ 5038.572508][   T73]      do_syscall_64+0xc6/0x1e0
[ 5038.572508][   T73] 
[ 5038.574830][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5038.574830][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5038.574830][   T73]      ipv6_find_idev+0x102/0x170
[ 5038.574830][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5038.574830][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5038.574830][   T73]      netlink_rcv_skb+0x130/0x360
[ 5038.574830][   T73]      netlink_unicast+0x449/0x710
[ 5038.574830][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5038.574830][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5038.574830][   T73]      ___sys_sendmsg+0xee/0x170
[ 5038.574830][   T73]      __sys_sendmsg+0xcd/0x170
[ 5038.574830][   T73]      do_syscall_64+0xc6/0x1e0
[ 5038.574830][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5038.574830][   T73] 
[ 5038.576691][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5038.576691][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5038.576691][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5038.576691][   T73]      ipv6_find_idev+0x102/0x170
[ 5038.576691][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5038.576691][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5038.576691][   T73]      netlink_rcv_skb+0x130/0x360
[ 5038.576691][   T73]      netlink_unicast+0x449/0x710
[ 5038.576691][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5038.576691][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5038.576691][   T73]      ___sys_sendmsg+0xee/0x170
[ 5038.576691][   T73]      __sys_sendmsg+0xcd/0x170
[ 5038.576691][   T73]      do_syscall_64+0xc6/0x1e0
[ 5038.576691][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5038.576691][   T73] 
[ 5038.579049][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5038.579348][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5038.579348][   T73]      netdev_get_by_index+0x5e/0x80
[ 5038.579348][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5038.579348][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5038.579348][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5038.579348][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5038.579348][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5038.579348][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5038.579348][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5038.579348][   T73]      addrconf_dad_begin+0x310/0x670
[ 5038.579348][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5038.579348][   T73]      process_one_work+0x84d/0x18a0
[ 5038.579348][   T73]      worker_thread+0x587/0xd30
[ 5038.579348][   T73]      kthread+0x28a/0x350
[ 5038.579348][   T73]      ret_from_fork+0x31/0x70
[ 5038.579348][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5038.579348][   T73] 
[ 5038.581483][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5038.581483][   T73]      netdev_get_by_index+0x5e/0x80
[ 5038.581483][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5038.581483][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5038.581483][   T73]      ip6_route_add+0x1c/0x140
[ 5038.581483][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5038.581483][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5038.581483][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5038.581483][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5038.581483][   T73]      netlink_rcv_skb+0x130/0x360
[ 5038.581483][   T73]      netlink_unicast+0x449/0x710
[ 5038.581483][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5038.581483][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5038.581483][   T73]      ___sys_sendmsg+0xee/0x170
[ 5038.581483][   T73]      __sys_sendmsg+0xcd/0x170
[ 5038.581483][   T73]      do_syscall_64+0xc6/0x1e0
[ 5038.581483][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5038.581483][   T73] 
[ 5038.583788][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5038.583788][   T73]      netdev_get_by_index+0x5e/0x80
[ 5038.583788][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5038.583788][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5038.583788][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5038.583788][   T73]      ipv6_add_addr+0x411/0x2000
[ 5038.583788][   T73]      inet6_addr_add+0x30e/0xa40
[ 5038.583788][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5038.583788][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5038.583788][   T73]      netlink_rcv_skb+0x130/0x360
[ 5038.583788][   T73]      netlink_unicast+0x449/0x710
[ 5038.583788][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5038.583788][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5038.583788][   T73]      ___sys_sendmsg+0xee/0x170
[ 5038.583788][   T73]      __sys_sendmsg+0xcd/0x170
[ 5038.583788][   T73]      do_syscall_64+0xc6/0x1e0
[ 5038.583788][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5038.583788][   T73] 
[ 5038.586169][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5038.586169][   T73]      netdev_get_by_index+0x5e/0x80
[ 5038.586169][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5038.586169][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5038.586169][   T73]      ip6_route_add+0x1c/0x140
[ 5038.586169][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5038.586169][   T73]      addrconf_add_dev+0xe2/0x170
[ 5038.586169][   T73]      inet6_addr_add+0x12f/0xa40
[ 5038.586169][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5038.586169][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5038.586169][   T73]      netlink_rcv_skb+0x130/0x360
[ 5038.586169][   T73]      netlink_unicast+0x449/0x710
[ 5038.586169][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5038.586169][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5038.586169][   T73]      ___sys_sendmsg+0xee/0x170
[ 5038.586169][   T73]      __sys_sendmsg+0xcd/0x170
[ 5038.586169][   T73]      do_syscall_64+0xc6/0x1e0
[ 5038.586169][   T73] 
[ 5038.588456][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5038.588456][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5038.588456][   T73]      ipv6_find_idev+0x102/0x170
[ 5038.588456][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5038.588456][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5038.588456][   T73]      netlink_rcv_skb+0x130/0x360
[ 5038.588456][   T73]      netlink_unicast+0x449/0x710
[ 5038.588456][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5038.588456][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5038.588456][   T73]      ___sys_sendmsg+0xee/0x170
[ 5038.588456][   T73]      __sys_sendmsg+0xcd/0x170
[ 5038.588456][   T73]      do_syscall_64+0xc6/0x1e0
[ 5038.588456][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5038.588456][   T73] 
[ 5038.590326][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5038.590326][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5038.590326][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5038.590326][   T73]      ipv6_find_idev+0x102/0x170
[ 5038.590326][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5038.590326][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5038.590326][   T73]      netlink_rcv_skb+0x130/0x360
[ 5038.590326][   T73]      netlink_unicast+0x449/0x710
[ 5038.590326][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5038.590326][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5038.590326][   T73]      ___sys_sendmsg+0xee/0x170
[ 5038.590326][   T73]      __sys_sendmsg+0xcd/0x170
[ 5038.590326][   T73]      do_syscall_64+0xc6/0x1e0
[ 5038.590326][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5038.590326][   T73] 
[ 5048.807837][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5048.808370][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5048.808370][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5048.808370][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5048.808370][   T73]      fib6_nh_init+0xa22/0x1580
[ 5048.808370][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5048.808370][   T73]      ip6_route_add+0x1c/0x140
[ 5048.808370][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5048.808370][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5048.808370][   T73]      netlink_rcv_skb+0x130/0x360
[ 5048.808370][   T73]      netlink_unicast+0x449/0x710
[ 5048.808370][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5048.808370][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5048.808370][   T73]      ___sys_sendmsg+0xee/0x170
[ 5048.808370][   T73]      __sys_sendmsg+0xcd/0x170
[ 5048.808370][   T73]      do_syscall_64+0xc6/0x1e0
[ 5048.808370][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5048.808370][   T73] 
[ 5048.810487][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5048.810487][   T73]      dst_init+0x84/0x4a0
[ 5048.810487][   T73]      dst_alloc+0x97/0x150
[ 5048.810487][   T73]      ip6_dst_alloc+0x23/0x90
[ 5048.810487][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5048.810487][   T73]      ip6_pol_route+0x56f/0x840
[ 5048.810487][   T73]      fib6_rule_lookup+0x456/0x630
[ 5048.810487][   T73]      ip6_route_input+0x59c/0xa50
[ 5048.810487][   T73]      ipv6_rcv+0x397/0x810
[ 5048.810487][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5048.810487][   T73]      process_backlog+0x101/0x620
[ 5048.810487][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5048.810487][   T73]      net_rx_action+0x495/0xbe0
[ 5048.810487][   T73]      __do_softirq+0x1b5/0x7f6
[ 5048.810487][   T73] 
[ 5048.812347][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5048.812347][   T73]      netdev_get_by_index+0x5e/0x80
[ 5048.812347][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5048.812347][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5048.812347][   T73]      ip6_route_add+0x1c/0x140
[ 5048.812347][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5048.812347][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5048.812347][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5048.812347][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5048.812347][   T73]      netlink_rcv_skb+0x130/0x360
[ 5048.812347][   T73]      netlink_unicast+0x449/0x710
[ 5048.812347][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5048.812347][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5048.812347][   T73]      ___sys_sendmsg+0xee/0x170
[ 5048.812347][   T73]      __sys_sendmsg+0xcd/0x170
[ 5048.812347][   T73]      do_syscall_64+0xc6/0x1e0
[ 5048.812347][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5048.812347][   T73] 
[ 5048.814582][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5048.814582][   T73]      netdev_get_by_index+0x5e/0x80
[ 5048.814582][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5048.814582][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5048.814582][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5048.814582][   T73]      ipv6_add_addr+0x411/0x2000
[ 5048.814582][   T73]      inet6_addr_add+0x30e/0xa40
[ 5048.814582][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5048.814582][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5048.814582][   T73]      netlink_rcv_skb+0x130/0x360
[ 5048.814582][   T73]      netlink_unicast+0x449/0x710
[ 5048.814582][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5048.814582][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5048.814582][   T73]      ___sys_sendmsg+0xee/0x170
[ 5048.814582][   T73]      __sys_sendmsg+0xcd/0x170
[ 5048.814582][   T73]      do_syscall_64+0xc6/0x1e0
[ 5048.814582][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5048.814582][   T73] 
[ 5048.816808][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5048.816808][   T73]      netdev_get_by_index+0x5e/0x80
[ 5048.816808][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5048.816808][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5048.816808][   T73]      ip6_route_add+0x1c/0x140
[ 5048.816808][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5048.816808][   T73]      addrconf_add_dev+0xe2/0x170
[ 5048.816808][   T73]      inet6_addr_add+0x12f/0xa40
[ 5048.816808][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5048.816808][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5048.816808][   T73]      netlink_rcv_skb+0x130/0x360
[ 5048.816808][   T73]      netlink_unicast+0x449/0x710
[ 5048.816808][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5048.816808][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5048.816808][   T73]      ___sys_sendmsg+0xee/0x170
[ 5048.816808][   T73]      __sys_sendmsg+0xcd/0x170
[ 5048.816808][   T73]      do_syscall_64+0xc6/0x1e0
[ 5048.816808][   T73] 
[ 5048.819005][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5048.819005][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5048.819005][   T73]      ipv6_find_idev+0x102/0x170
[ 5048.819005][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5048.819005][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5048.819005][   T73]      netlink_rcv_skb+0x130/0x360
[ 5048.819005][   T73]      netlink_unicast+0x449/0x710
[ 5048.819005][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5048.819005][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5048.819005][   T73]      ___sys_sendmsg+0xee/0x170
[ 5048.819005][   T73]      __sys_sendmsg+0xcd/0x170
[ 5048.819005][   T73]      do_syscall_64+0xc6/0x1e0
[ 5048.819005][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5048.819005][   T73] 
[ 5048.823450][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5048.823450][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5048.823450][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5048.823450][   T73]      ipv6_find_idev+0x102/0x170
[ 5048.823450][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5048.823450][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5048.823450][   T73]      netlink_rcv_skb+0x130/0x360
[ 5048.823450][   T73]      netlink_unicast+0x449/0x710
[ 5048.823450][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5048.823450][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5048.823450][   T73]      ___sys_sendmsg+0xee/0x170
[ 5048.823450][   T73]      __sys_sendmsg+0xcd/0x170
[ 5048.823450][   T73]      do_syscall_64+0xc6/0x1e0
[ 5048.823450][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5048.823450][   T73] 
[ 5048.825362][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5048.825674][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5048.825674][   T73]      netdev_get_by_index+0x5e/0x80
[ 5048.825674][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5048.825674][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5048.825674][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5048.825674][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5048.825674][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5048.825674][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5048.825674][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5048.825674][   T73]      addrconf_dad_begin+0x310/0x670
[ 5048.825674][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5048.825674][   T73]      process_one_work+0x84d/0x18a0
[ 5048.825674][   T73]      worker_thread+0x587/0xd30
[ 5048.825674][   T73]      kthread+0x28a/0x350
[ 5048.825674][   T73]      ret_from_fork+0x31/0x70
[ 5048.825674][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5048.825674][   T73] 
[ 5048.827812][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5048.827812][   T73]      netdev_get_by_index+0x5e/0x80
[ 5048.827812][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5048.827812][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5048.827812][   T73]      ip6_route_add+0x1c/0x140
[ 5048.827812][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5048.827812][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5048.827812][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5048.827812][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5048.827812][   T73]      netlink_rcv_skb+0x130/0x360
[ 5048.827812][   T73]      netlink_unicast+0x449/0x710
[ 5048.827812][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5048.827812][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5048.827812][   T73]      ___sys_sendmsg+0xee/0x170
[ 5048.827812][   T73]      __sys_sendmsg+0xcd/0x170
[ 5048.827812][   T73]      do_syscall_64+0xc6/0x1e0
[ 5048.827812][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5048.827812][   T73] 
[ 5048.830058][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5048.830058][   T73]      netdev_get_by_index+0x5e/0x80
[ 5048.830058][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5048.830058][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5048.830058][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5048.830058][   T73]      ipv6_add_addr+0x411/0x2000
[ 5048.830058][   T73]      inet6_addr_add+0x30e/0xa40
[ 5048.830058][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5048.830058][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5048.830058][   T73]      netlink_rcv_skb+0x130/0x360
[ 5048.830058][   T73]      netlink_unicast+0x449/0x710
[ 5048.830058][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5048.830058][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5048.830058][   T73]      ___sys_sendmsg+0xee/0x170
[ 5048.830058][   T73]      __sys_sendmsg+0xcd/0x170
[ 5048.830058][   T73]      do_syscall_64+0xc6/0x1e0
[ 5048.830058][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5048.830058][   T73] 
[ 5048.832317][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5048.832317][   T73]      netdev_get_by_index+0x5e/0x80
[ 5048.832317][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5048.832317][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5048.832317][   T73]      ip6_route_add+0x1c/0x140
[ 5048.832317][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5048.832317][   T73]      addrconf_add_dev+0xe2/0x170
[ 5048.832317][   T73]      inet6_addr_add+0x12f/0xa40
[ 5048.832317][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5048.832317][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5048.832317][   T73]      netlink_rcv_skb+0x130/0x360
[ 5048.832317][   T73]      netlink_unicast+0x449/0x710
[ 5048.832317][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5048.832317][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5048.832317][   T73]      ___sys_sendmsg+0xee/0x170
[ 5048.832317][   T73]      __sys_sendmsg+0xcd/0x170
[ 5048.832317][   T73]      do_syscall_64+0xc6/0x1e0
[ 5048.832317][   T73] 
[ 5048.834522][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5048.834522][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5048.834522][   T73]      ipv6_find_idev+0x102/0x170
[ 5048.834522][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5048.834522][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5048.834522][   T73]      netlink_rcv_skb+0x130/0x360
[ 5048.834522][   T73]      netlink_unicast+0x449/0x710
[ 5048.834522][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5048.834522][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5048.834522][   T73]      ___sys_sendmsg+0xee/0x170
[ 5048.834522][   T73]      __sys_sendmsg+0xcd/0x170
[ 5048.834522][   T73]      do_syscall_64+0xc6/0x1e0
[ 5048.834522][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5048.834522][   T73] 
[ 5048.836245][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5048.836245][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5048.836245][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5048.836245][   T73]      ipv6_find_idev+0x102/0x170
[ 5048.836245][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5048.836245][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5048.836245][   T73]      netlink_rcv_skb+0x130/0x360
[ 5048.836245][   T73]      netlink_unicast+0x449/0x710
[ 5048.836245][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5048.836245][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5048.836245][   T73]      ___sys_sendmsg+0xee/0x170
[ 5048.836245][   T73]      __sys_sendmsg+0xcd/0x170
[ 5048.836245][   T73]      do_syscall_64+0xc6/0x1e0
[ 5048.836245][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5048.836245][   T73] 
[ 5048.838136][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5048.838428][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5048.838428][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5048.838428][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5048.838428][   T73]      fib6_nh_init+0xa22/0x1580
[ 5048.838428][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5048.838428][   T73]      ip6_route_add+0x1c/0x140
[ 5048.838428][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5048.838428][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5048.838428][   T73]      netlink_rcv_skb+0x130/0x360
[ 5048.838428][   T73]      netlink_unicast+0x449/0x710
[ 5048.838428][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5048.838428][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5048.838428][   T73]      ___sys_sendmsg+0xee/0x170
[ 5048.838428][   T73]      __sys_sendmsg+0xcd/0x170
[ 5048.838428][   T73]      do_syscall_64+0xc6/0x1e0
[ 5048.838428][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5048.838428][   T73] 
[ 5048.840728][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5048.840728][   T73]      dst_init+0x84/0x4a0
[ 5048.840728][   T73]      dst_alloc+0x97/0x150
[ 5048.840728][   T73]      ip6_dst_alloc+0x23/0x90
[ 5048.840728][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5048.840728][   T73]      ip6_pol_route+0x56f/0x840
[ 5048.840728][   T73]      fib6_rule_lookup+0x456/0x630
[ 5048.840728][   T73]      ip6_route_input+0x59c/0xa50
[ 5048.840728][   T73]      ipv6_rcv+0x397/0x810
[ 5048.840728][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5048.840728][   T73]      process_backlog+0x101/0x620
[ 5048.840728][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5048.840728][   T73]      net_rx_action+0x495/0xbe0
[ 5048.840728][   T73]      __do_softirq+0x1b5/0x7f6
[ 5048.840728][   T73] 
[ 5048.842693][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5048.842693][   T73]      netdev_get_by_index+0x5e/0x80
[ 5048.842693][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5048.842693][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5048.842693][   T73]      ip6_route_add+0x1c/0x140
[ 5048.842693][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5048.842693][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5048.842693][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5048.842693][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5048.842693][   T73]      netlink_rcv_skb+0x130/0x360
[ 5048.842693][   T73]      netlink_unicast+0x449/0x710
[ 5048.842693][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5048.842693][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5048.842693][   T73]      ___sys_sendmsg+0xee/0x170
[ 5048.842693][   T73]      __sys_sendmsg+0xcd/0x170
[ 5048.842693][   T73]      do_syscall_64+0xc6/0x1e0
[ 5048.842693][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5048.842693][   T73] 
[ 5048.845156][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5048.845156][   T73]      netdev_get_by_index+0x5e/0x80
[ 5048.845156][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5048.845156][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5048.845156][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5048.845156][   T73]      ipv6_add_addr+0x411/0x2000
[ 5048.845156][   T73]      inet6_addr_add+0x30e/0xa40
[ 5048.845156][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5048.845156][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5048.845156][   T73]      netlink_rcv_skb+0x130/0x360
[ 5048.845156][   T73]      netlink_unicast+0x449/0x710
[ 5048.845156][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5048.845156][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5048.845156][   T73]      ___sys_sendmsg+0xee/0x170
[ 5048.845156][   T73]      __sys_sendmsg+0xcd/0x170
[ 5048.845156][   T73]      do_syscall_64+0xc6/0x1e0
[ 5048.845156][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5048.845156][   T73] 
[ 5048.847639][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5048.847639][   T73]      netdev_get_by_index+0x5e/0x80
[ 5048.847639][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5048.847639][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5048.847639][   T73]      ip6_route_add+0x1c/0x140
[ 5048.847639][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5048.847639][   T73]      addrconf_add_dev+0xe2/0x170
[ 5048.847639][   T73]      inet6_addr_add+0x12f/0xa40
[ 5048.847639][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5048.847639][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5048.847639][   T73]      netlink_rcv_skb+0x130/0x360
[ 5048.847639][   T73]      netlink_unicast+0x449/0x710
[ 5048.847639][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5048.847639][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5048.847639][   T73]      ___sys_sendmsg+0xee/0x170
[ 5048.847639][   T73]      __sys_sendmsg+0xcd/0x170
[ 5048.847639][   T73]      do_syscall_64+0xc6/0x1e0
[ 5048.847639][   T73] 
[ 5048.850078][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5048.850078][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5048.850078][   T73]      ipv6_find_idev+0x102/0x170
[ 5048.850078][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5048.850078][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5048.850078][   T73]      netlink_rcv_skb+0x130/0x360
[ 5048.850078][   T73]      netlink_unicast+0x449/0x710
[ 5048.850078][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5048.850078][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5048.850078][   T73]      ___sys_sendmsg+0xee/0x170
[ 5048.850078][   T73]      __sys_sendmsg+0xcd/0x170
[ 5048.850078][   T73]      do_syscall_64+0xc6/0x1e0
[ 5048.850078][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5048.850078][   T73] 
[ 5048.852004][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5048.852004][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5048.852004][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5048.852004][   T73]      ipv6_find_idev+0x102/0x170
[ 5048.852004][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5048.852004][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5048.852004][   T73]      netlink_rcv_skb+0x130/0x360
[ 5048.852004][   T73]      netlink_unicast+0x449/0x710
[ 5048.852004][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5048.852004][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5048.852004][   T73]      ___sys_sendmsg+0xee/0x170
[ 5048.852004][   T73]      __sys_sendmsg+0xcd/0x170
[ 5048.852004][   T73]      do_syscall_64+0xc6/0x1e0
[ 5048.852004][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5048.852004][   T73] 
[ 5048.854062][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5048.854416][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5048.854416][   T73]      netdev_get_by_index+0x5e/0x80
[ 5048.854416][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5048.854416][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5048.854416][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5048.854416][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5048.854416][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5048.854416][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5048.854416][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5048.854416][   T73]      addrconf_dad_begin+0x310/0x670
[ 5048.854416][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5048.854416][   T73]      process_one_work+0x84d/0x18a0
[ 5048.854416][   T73]      worker_thread+0x587/0xd30
[ 5048.854416][   T73]      kthread+0x28a/0x350
[ 5048.854416][   T73]      ret_from_fork+0x31/0x70
[ 5048.854416][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5048.854416][   T73] 
[ 5048.856748][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5048.856748][   T73]      netdev_get_by_index+0x5e/0x80
[ 5048.856748][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5048.856748][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5048.856748][   T73]      ip6_route_add+0x1c/0x140
[ 5048.856748][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5048.856748][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5048.856748][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5048.856748][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5048.856748][   T73]      netlink_rcv_skb+0x130/0x360
[ 5048.856748][   T73]      netlink_unicast+0x449/0x710
[ 5048.856748][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5048.856748][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5048.856748][   T73]      ___sys_sendmsg+0xee/0x170
[ 5048.856748][   T73]      __sys_sendmsg+0xcd/0x170
[ 5048.856748][   T73]      do_syscall_64+0xc6/0x1e0
[ 5048.856748][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5048.856748][   T73] 
[ 5048.859298][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5048.859298][   T73]      netdev_get_by_index+0x5e/0x80
[ 5048.859298][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5048.859298][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5048.859298][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5048.859298][   T73]      ipv6_add_addr+0x411/0x2000
[ 5048.859298][   T73]      inet6_addr_add+0x30e/0xa40
[ 5048.859298][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5048.859298][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5048.859298][   T73]      netlink_rcv_skb+0x130/0x360
[ 5048.859298][   T73]      netlink_unicast+0x449/0x710
[ 5048.859298][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5048.859298][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5048.859298][   T73]      ___sys_sendmsg+0xee/0x170
[ 5048.859298][   T73]      __sys_sendmsg+0xcd/0x170
[ 5048.859298][   T73]      do_syscall_64+0xc6/0x1e0
[ 5048.859298][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5048.859298][   T73] 
[ 5048.861782][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5048.861782][   T73]      netdev_get_by_index+0x5e/0x80
[ 5048.861782][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5048.861782][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5048.861782][   T73]      ip6_route_add+0x1c/0x140
[ 5048.861782][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5048.861782][   T73]      addrconf_add_dev+0xe2/0x170
[ 5048.861782][   T73]      inet6_addr_add+0x12f/0xa40
[ 5048.861782][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5048.861782][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5048.861782][   T73]      netlink_rcv_skb+0x130/0x360
[ 5048.861782][   T73]      netlink_unicast+0x449/0x710
[ 5048.861782][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5048.861782][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5048.861782][   T73]      ___sys_sendmsg+0xee/0x170
[ 5048.861782][   T73]      __sys_sendmsg+0xcd/0x170
[ 5048.861782][   T73]      do_syscall_64+0xc6/0x1e0
[ 5048.861782][   T73] 
[ 5048.864232][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5048.864232][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5048.864232][   T73]      ipv6_find_idev+0x102/0x170
[ 5048.864232][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5048.864232][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5048.864232][   T73]      netlink_rcv_skb+0x130/0x360
[ 5048.864232][   T73]      netlink_unicast+0x449/0x710
[ 5048.864232][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5048.864232][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5048.864232][   T73]      ___sys_sendmsg+0xee/0x170
[ 5048.864232][   T73]      __sys_sendmsg+0xcd/0x170
[ 5048.864232][   T73]      do_syscall_64+0xc6/0x1e0
[ 5048.864232][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5048.864232][   T73] 
[ 5048.866098][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5048.866098][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5048.866098][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5048.866098][   T73]      ipv6_find_idev+0x102/0x170
[ 5048.866098][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5048.866098][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5048.866098][   T73]      netlink_rcv_skb+0x130/0x360
[ 5048.866098][   T73]      netlink_unicast+0x449/0x710
[ 5048.866098][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5048.866098][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5048.866098][   T73]      ___sys_sendmsg+0xee/0x170
[ 5048.866098][   T73]      __sys_sendmsg+0xcd/0x170
[ 5048.866098][   T73]      do_syscall_64+0xc6/0x1e0
[ 5048.866098][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5048.866098][   T73] 
[ 5058.887780][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5058.888296][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5058.888296][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5058.888296][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5058.888296][   T73]      fib6_nh_init+0xa22/0x1580
[ 5058.888296][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5058.888296][   T73]      ip6_route_add+0x1c/0x140
[ 5058.888296][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5058.888296][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5058.888296][   T73]      netlink_rcv_skb+0x130/0x360
[ 5058.888296][   T73]      netlink_unicast+0x449/0x710
[ 5058.888296][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5058.888296][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5058.888296][   T73]      ___sys_sendmsg+0xee/0x170
[ 5058.888296][   T73]      __sys_sendmsg+0xcd/0x170
[ 5058.888296][   T73]      do_syscall_64+0xc6/0x1e0
[ 5058.888296][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5058.888296][   T73] 
[ 5058.890404][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5058.890404][   T73]      dst_init+0x84/0x4a0
[ 5058.890404][   T73]      dst_alloc+0x97/0x150
[ 5058.890404][   T73]      ip6_dst_alloc+0x23/0x90
[ 5058.890404][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5058.890404][   T73]      ip6_pol_route+0x56f/0x840
[ 5058.890404][   T73]      fib6_rule_lookup+0x456/0x630
[ 5058.890404][   T73]      ip6_route_input+0x59c/0xa50
[ 5058.890404][   T73]      ipv6_rcv+0x397/0x810
[ 5058.890404][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5058.890404][   T73]      process_backlog+0x101/0x620
[ 5058.890404][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5058.890404][   T73]      net_rx_action+0x495/0xbe0
[ 5058.890404][   T73]      __do_softirq+0x1b5/0x7f6
[ 5058.890404][   T73] 
[ 5058.892231][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5058.892231][   T73]      netdev_get_by_index+0x5e/0x80
[ 5058.892231][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5058.892231][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5058.892231][   T73]      ip6_route_add+0x1c/0x140
[ 5058.892231][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5058.892231][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5058.892231][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5058.892231][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5058.892231][   T73]      netlink_rcv_skb+0x130/0x360
[ 5058.892231][   T73]      netlink_unicast+0x449/0x710
[ 5058.892231][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5058.892231][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5058.892231][   T73]      ___sys_sendmsg+0xee/0x170
[ 5058.892231][   T73]      __sys_sendmsg+0xcd/0x170
[ 5058.892231][   T73]      do_syscall_64+0xc6/0x1e0
[ 5058.892231][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5058.892231][   T73] 
[ 5058.894461][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5058.894461][   T73]      netdev_get_by_index+0x5e/0x80
[ 5058.894461][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5058.894461][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5058.894461][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5058.894461][   T73]      ipv6_add_addr+0x411/0x2000
[ 5058.894461][   T73]      inet6_addr_add+0x30e/0xa40
[ 5058.894461][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5058.894461][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5058.894461][   T73]      netlink_rcv_skb+0x130/0x360
[ 5058.894461][   T73]      netlink_unicast+0x449/0x710
[ 5058.894461][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5058.894461][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5058.894461][   T73]      ___sys_sendmsg+0xee/0x170
[ 5058.894461][   T73]      __sys_sendmsg+0xcd/0x170
[ 5058.894461][   T73]      do_syscall_64+0xc6/0x1e0
[ 5058.894461][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5058.894461][   T73] 
[ 5058.896690][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5058.896690][   T73]      netdev_get_by_index+0x5e/0x80
[ 5058.896690][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5058.896690][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5058.896690][   T73]      ip6_route_add+0x1c/0x140
[ 5058.896690][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5058.896690][   T73]      addrconf_add_dev+0xe2/0x170
[ 5058.896690][   T73]      inet6_addr_add+0x12f/0xa40
[ 5058.896690][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5058.896690][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5058.896690][   T73]      netlink_rcv_skb+0x130/0x360
[ 5058.896690][   T73]      netlink_unicast+0x449/0x710
[ 5058.896690][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5058.896690][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5058.896690][   T73]      ___sys_sendmsg+0xee/0x170
[ 5058.896690][   T73]      __sys_sendmsg+0xcd/0x170
[ 5058.896690][   T73]      do_syscall_64+0xc6/0x1e0
[ 5058.896690][   T73] 
[ 5058.898864][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5058.898864][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5058.898864][   T73]      ipv6_find_idev+0x102/0x170
[ 5058.898864][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5058.898864][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5058.898864][   T73]      netlink_rcv_skb+0x130/0x360
[ 5058.898864][   T73]      netlink_unicast+0x449/0x710
[ 5058.898864][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5058.898864][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5058.898864][   T73]      ___sys_sendmsg+0xee/0x170
[ 5058.898864][   T73]      __sys_sendmsg+0xcd/0x170
[ 5058.898864][   T73]      do_syscall_64+0xc6/0x1e0
[ 5058.898864][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5058.898864][   T73] 
[ 5058.900593][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5058.900593][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5058.900593][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5058.900593][   T73]      ipv6_find_idev+0x102/0x170
[ 5058.900593][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5058.900593][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5058.900593][   T73]      netlink_rcv_skb+0x130/0x360
[ 5058.900593][   T73]      netlink_unicast+0x449/0x710
[ 5058.900593][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5058.900593][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5058.900593][   T73]      ___sys_sendmsg+0xee/0x170
[ 5058.900593][   T73]      __sys_sendmsg+0xcd/0x170
[ 5058.900593][   T73]      do_syscall_64+0xc6/0x1e0
[ 5058.900593][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5058.900593][   T73] 
[ 5058.902469][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5058.902791][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5058.902791][   T73]      netdev_get_by_index+0x5e/0x80
[ 5058.902791][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5058.902791][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5058.902791][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5058.902791][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5058.902791][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5058.902791][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5058.902791][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5058.902791][   T73]      addrconf_dad_begin+0x310/0x670
[ 5058.902791][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5058.902791][   T73]      process_one_work+0x84d/0x18a0
[ 5058.902791][   T73]      worker_thread+0x587/0xd30
[ 5058.902791][   T73]      kthread+0x28a/0x350
[ 5058.902791][   T73]      ret_from_fork+0x31/0x70
[ 5058.902791][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5058.902791][   T73] 
[ 5058.904928][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5058.904928][   T73]      netdev_get_by_index+0x5e/0x80
[ 5058.904928][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5058.904928][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5058.904928][   T73]      ip6_route_add+0x1c/0x140
[ 5058.904928][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5058.904928][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5058.904928][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5058.904928][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5058.904928][   T73]      netlink_rcv_skb+0x130/0x360
[ 5058.904928][   T73]      netlink_unicast+0x449/0x710
[ 5058.904928][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5058.904928][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5058.904928][   T73]      ___sys_sendmsg+0xee/0x170
[ 5058.904928][   T73]      __sys_sendmsg+0xcd/0x170
[ 5058.904928][   T73]      do_syscall_64+0xc6/0x1e0
[ 5058.904928][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5058.904928][   T73] 
[ 5058.907152][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5058.907152][   T73]      netdev_get_by_index+0x5e/0x80
[ 5058.907152][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5058.907152][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5058.907152][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5058.907152][   T73]      ipv6_add_addr+0x411/0x2000
[ 5058.907152][   T73]      inet6_addr_add+0x30e/0xa40
[ 5058.907152][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5058.907152][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5058.907152][   T73]      netlink_rcv_skb+0x130/0x360
[ 5058.907152][   T73]      netlink_unicast+0x449/0x710
[ 5058.907152][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5058.907152][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5058.907152][   T73]      ___sys_sendmsg+0xee/0x170
[ 5058.907152][   T73]      __sys_sendmsg+0xcd/0x170
[ 5058.907152][   T73]      do_syscall_64+0xc6/0x1e0
[ 5058.907152][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5058.907152][   T73] 
[ 5058.909379][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5058.909379][   T73]      netdev_get_by_index+0x5e/0x80
[ 5058.909379][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5058.909379][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5058.909379][   T73]      ip6_route_add+0x1c/0x140
[ 5058.909379][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5058.909379][   T73]      addrconf_add_dev+0xe2/0x170
[ 5058.909379][   T73]      inet6_addr_add+0x12f/0xa40
[ 5058.909379][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5058.909379][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5058.909379][   T73]      netlink_rcv_skb+0x130/0x360
[ 5058.909379][   T73]      netlink_unicast+0x449/0x710
[ 5058.909379][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5058.909379][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5058.909379][   T73]      ___sys_sendmsg+0xee/0x170
[ 5058.909379][   T73]      __sys_sendmsg+0xcd/0x170
[ 5058.909379][   T73]      do_syscall_64+0xc6/0x1e0
[ 5058.909379][   T73] 
[ 5058.911590][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5058.911590][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5058.911590][   T73]      ipv6_find_idev+0x102/0x170
[ 5058.911590][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5058.911590][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5058.911590][   T73]      netlink_rcv_skb+0x130/0x360
[ 5058.911590][   T73]      netlink_unicast+0x449/0x710
[ 5058.911590][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5058.911590][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5058.911590][   T73]      ___sys_sendmsg+0xee/0x170
[ 5058.911590][   T73]      __sys_sendmsg+0xcd/0x170
[ 5058.911590][   T73]      do_syscall_64+0xc6/0x1e0
[ 5058.911590][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5058.911590][   T73] 
[ 5058.913299][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5058.913299][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5058.913299][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5058.913299][   T73]      ipv6_find_idev+0x102/0x170
[ 5058.913299][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5058.913299][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5058.913299][   T73]      netlink_rcv_skb+0x130/0x360
[ 5058.913299][   T73]      netlink_unicast+0x449/0x710
[ 5058.913299][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5058.913299][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5058.913299][   T73]      ___sys_sendmsg+0xee/0x170
[ 5058.913299][   T73]      __sys_sendmsg+0xcd/0x170
[ 5058.913299][   T73]      do_syscall_64+0xc6/0x1e0
[ 5058.913299][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5058.913299][   T73] 
[ 5058.915178][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5058.915492][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5058.915492][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5058.915492][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5058.915492][   T73]      fib6_nh_init+0xa22/0x1580
[ 5058.915492][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5058.915492][   T73]      ip6_route_add+0x1c/0x140
[ 5058.915492][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5058.915492][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5058.915492][   T73]      netlink_rcv_skb+0x130/0x360
[ 5058.915492][   T73]      netlink_unicast+0x449/0x710
[ 5058.915492][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5058.915492][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5058.915492][   T73]      ___sys_sendmsg+0xee/0x170
[ 5058.915492][   T73]      __sys_sendmsg+0xcd/0x170
[ 5058.915492][   T73]      do_syscall_64+0xc6/0x1e0
[ 5058.915492][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5058.915492][   T73] 
[ 5058.917730][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5058.917730][   T73]      dst_init+0x84/0x4a0
[ 5058.917730][   T73]      dst_alloc+0x97/0x150
[ 5058.917730][   T73]      ip6_dst_alloc+0x23/0x90
[ 5058.917730][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5058.917730][   T73]      ip6_pol_route+0x56f/0x840
[ 5058.917730][   T73]      fib6_rule_lookup+0x456/0x630
[ 5058.917730][   T73]      ip6_route_input+0x59c/0xa50
[ 5058.917730][   T73]      ipv6_rcv+0x397/0x810
[ 5058.917730][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5058.917730][   T73]      process_backlog+0x101/0x620
[ 5058.917730][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5058.917730][   T73]      net_rx_action+0x495/0xbe0
[ 5058.917730][   T73]      __do_softirq+0x1b5/0x7f6
[ 5058.917730][   T73] 
[ 5058.919777][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5058.919777][   T73]      netdev_get_by_index+0x5e/0x80
[ 5058.919777][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5058.919777][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5058.919777][   T73]      ip6_route_add+0x1c/0x140
[ 5058.919777][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5058.919777][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5058.919777][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5058.919777][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5058.919777][   T73]      netlink_rcv_skb+0x130/0x360
[ 5058.919777][   T73]      netlink_unicast+0x449/0x710
[ 5058.919777][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5058.919777][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5058.919777][   T73]      ___sys_sendmsg+0xee/0x170
[ 5058.919777][   T73]      __sys_sendmsg+0xcd/0x170
[ 5058.919777][   T73]      do_syscall_64+0xc6/0x1e0
[ 5058.919777][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5058.919777][   T73] 
[ 5058.922261][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5058.922261][   T73]      netdev_get_by_index+0x5e/0x80
[ 5058.922261][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5058.922261][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5058.922261][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5058.922261][   T73]      ipv6_add_addr+0x411/0x2000
[ 5058.922261][   T73]      inet6_addr_add+0x30e/0xa40
[ 5058.922261][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5058.922261][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5058.922261][   T73]      netlink_rcv_skb+0x130/0x360
[ 5058.922261][   T73]      netlink_unicast+0x449/0x710
[ 5058.922261][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5058.922261][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5058.922261][   T73]      ___sys_sendmsg+0xee/0x170
[ 5058.922261][   T73]      __sys_sendmsg+0xcd/0x170
[ 5058.922261][   T73]      do_syscall_64+0xc6/0x1e0
[ 5058.922261][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5058.922261][   T73] 
[ 5058.924667][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5058.924667][   T73]      netdev_get_by_index+0x5e/0x80
[ 5058.924667][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5058.924667][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5058.924667][   T73]      ip6_route_add+0x1c/0x140
[ 5058.924667][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5058.924667][   T73]      addrconf_add_dev+0xe2/0x170
[ 5058.924667][   T73]      inet6_addr_add+0x12f/0xa40
[ 5058.924667][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5058.924667][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5058.924667][   T73]      netlink_rcv_skb+0x130/0x360
[ 5058.924667][   T73]      netlink_unicast+0x449/0x710
[ 5058.924667][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5058.924667][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5058.924667][   T73]      ___sys_sendmsg+0xee/0x170
[ 5058.924667][   T73]      __sys_sendmsg+0xcd/0x170
[ 5058.924667][   T73]      do_syscall_64+0xc6/0x1e0
[ 5058.924667][   T73] 
[ 5058.927129][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5058.927129][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5058.927129][   T73]      ipv6_find_idev+0x102/0x170
[ 5058.927129][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5058.927129][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5058.927129][   T73]      netlink_rcv_skb+0x130/0x360
[ 5058.927129][   T73]      netlink_unicast+0x449/0x710
[ 5058.927129][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5058.927129][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5058.927129][   T73]      ___sys_sendmsg+0xee/0x170
[ 5058.927129][   T73]      __sys_sendmsg+0xcd/0x170
[ 5058.927129][   T73]      do_syscall_64+0xc6/0x1e0
[ 5058.927129][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5058.927129][   T73] 
[ 5058.928970][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5058.928970][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5058.928970][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5058.928970][   T73]      ipv6_find_idev+0x102/0x170
[ 5058.928970][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5058.928970][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5058.928970][   T73]      netlink_rcv_skb+0x130/0x360
[ 5058.928970][   T73]      netlink_unicast+0x449/0x710
[ 5058.928970][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5058.928970][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5058.928970][   T73]      ___sys_sendmsg+0xee/0x170
[ 5058.928970][   T73]      __sys_sendmsg+0xcd/0x170
[ 5058.928970][   T73]      do_syscall_64+0xc6/0x1e0
[ 5058.928970][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5058.928970][   T73] 
[ 5058.931496][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5058.932213][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5058.932213][   T73]      netdev_get_by_index+0x5e/0x80
[ 5058.932213][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5058.932213][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5058.932213][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5058.932213][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5058.932213][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5058.932213][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5058.932213][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5058.932213][   T73]      addrconf_dad_begin+0x310/0x670
[ 5058.932213][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5058.932213][   T73]      process_one_work+0x84d/0x18a0
[ 5058.932213][   T73]      worker_thread+0x587/0xd30
[ 5058.932213][   T73]      kthread+0x28a/0x350
[ 5058.932213][   T73]      ret_from_fork+0x31/0x70
[ 5058.932213][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5058.932213][   T73] 
[ 5058.934351][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5058.934351][   T73]      netdev_get_by_index+0x5e/0x80
[ 5058.934351][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5058.934351][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5058.934351][   T73]      ip6_route_add+0x1c/0x140
[ 5058.934351][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5058.934351][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5058.934351][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5058.934351][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5058.934351][   T73]      netlink_rcv_skb+0x130/0x360
[ 5058.934351][   T73]      netlink_unicast+0x449/0x710
[ 5058.934351][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5058.934351][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5058.934351][   T73]      ___sys_sendmsg+0xee/0x170
[ 5058.934351][   T73]      __sys_sendmsg+0xcd/0x170
[ 5058.934351][   T73]      do_syscall_64+0xc6/0x1e0
[ 5058.934351][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5058.934351][   T73] 
[ 5058.936570][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5058.936570][   T73]      netdev_get_by_index+0x5e/0x80
[ 5058.936570][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5058.936570][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5058.936570][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5058.936570][   T73]      ipv6_add_addr+0x411/0x2000
[ 5058.936570][   T73]      inet6_addr_add+0x30e/0xa40
[ 5058.936570][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5058.936570][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5058.936570][   T73]      netlink_rcv_skb+0x130/0x360
[ 5058.936570][   T73]      netlink_unicast+0x449/0x710
[ 5058.936570][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5058.936570][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5058.936570][   T73]      ___sys_sendmsg+0xee/0x170
[ 5058.936570][   T73]      __sys_sendmsg+0xcd/0x170
[ 5058.936570][   T73]      do_syscall_64+0xc6/0x1e0
[ 5058.936570][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5058.936570][   T73] 
[ 5058.938835][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5058.938835][   T73]      netdev_get_by_index+0x5e/0x80
[ 5058.938835][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5058.938835][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5058.938835][   T73]      ip6_route_add+0x1c/0x140
[ 5058.938835][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5058.938835][   T73]      addrconf_add_dev+0xe2/0x170
[ 5058.938835][   T73]      inet6_addr_add+0x12f/0xa40
[ 5058.938835][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5058.938835][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5058.938835][   T73]      netlink_rcv_skb+0x130/0x360
[ 5058.938835][   T73]      netlink_unicast+0x449/0x710
[ 5058.938835][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5058.938835][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5058.938835][   T73]      ___sys_sendmsg+0xee/0x170
[ 5058.938835][   T73]      __sys_sendmsg+0xcd/0x170
[ 5058.938835][   T73]      do_syscall_64+0xc6/0x1e0
[ 5058.938835][   T73] 
[ 5058.941279][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5058.941279][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5058.941279][   T73]      ipv6_find_idev+0x102/0x170
[ 5058.941279][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5058.941279][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5058.941279][   T73]      netlink_rcv_skb+0x130/0x360
[ 5058.941279][   T73]      netlink_unicast+0x449/0x710
[ 5058.941279][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5058.941279][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5058.941279][   T73]      ___sys_sendmsg+0xee/0x170
[ 5058.941279][   T73]      __sys_sendmsg+0xcd/0x170
[ 5058.941279][   T73]      do_syscall_64+0xc6/0x1e0
[ 5058.941279][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5058.941279][   T73] 
[ 5058.943191][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5058.943191][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5058.943191][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5058.943191][   T73]      ipv6_find_idev+0x102/0x170
[ 5058.943191][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5058.943191][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5058.943191][   T73]      netlink_rcv_skb+0x130/0x360
[ 5058.943191][   T73]      netlink_unicast+0x449/0x710
[ 5058.943191][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5058.943191][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5058.943191][   T73]      ___sys_sendmsg+0xee/0x170
[ 5058.943191][   T73]      __sys_sendmsg+0xcd/0x170
[ 5058.943191][   T73]      do_syscall_64+0xc6/0x1e0
[ 5058.943191][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5058.943191][   T73] 
[ 5069.151731][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5069.152231][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5069.152231][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5069.152231][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5069.152231][   T73]      fib6_nh_init+0xa22/0x1580
[ 5069.152231][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5069.152231][   T73]      ip6_route_add+0x1c/0x140
[ 5069.152231][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5069.152231][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5069.152231][   T73]      netlink_rcv_skb+0x130/0x360
[ 5069.152231][   T73]      netlink_unicast+0x449/0x710
[ 5069.152231][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5069.152231][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5069.152231][   T73]      ___sys_sendmsg+0xee/0x170
[ 5069.152231][   T73]      __sys_sendmsg+0xcd/0x170
[ 5069.152231][   T73]      do_syscall_64+0xc6/0x1e0
[ 5069.152231][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5069.152231][   T73] 
[ 5069.154360][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5069.154360][   T73]      dst_init+0x84/0x4a0
[ 5069.154360][   T73]      dst_alloc+0x97/0x150
[ 5069.154360][   T73]      ip6_dst_alloc+0x23/0x90
[ 5069.154360][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5069.154360][   T73]      ip6_pol_route+0x56f/0x840
[ 5069.154360][   T73]      fib6_rule_lookup+0x456/0x630
[ 5069.154360][   T73]      ip6_route_input+0x59c/0xa50
[ 5069.154360][   T73]      ipv6_rcv+0x397/0x810
[ 5069.154360][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5069.154360][   T73]      process_backlog+0x101/0x620
[ 5069.154360][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5069.154360][   T73]      net_rx_action+0x495/0xbe0
[ 5069.154360][   T73]      __do_softirq+0x1b5/0x7f6
[ 5069.154360][   T73] 
[ 5069.156191][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5069.156191][   T73]      netdev_get_by_index+0x5e/0x80
[ 5069.156191][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5069.156191][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5069.156191][   T73]      ip6_route_add+0x1c/0x140
[ 5069.156191][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5069.156191][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5069.156191][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5069.156191][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5069.156191][   T73]      netlink_rcv_skb+0x130/0x360
[ 5069.156191][   T73]      netlink_unicast+0x449/0x710
[ 5069.156191][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5069.156191][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5069.156191][   T73]      ___sys_sendmsg+0xee/0x170
[ 5069.156191][   T73]      __sys_sendmsg+0xcd/0x170
[ 5069.156191][   T73]      do_syscall_64+0xc6/0x1e0
[ 5069.156191][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5069.156191][   T73] 
[ 5069.158420][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5069.158420][   T73]      netdev_get_by_index+0x5e/0x80
[ 5069.158420][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5069.158420][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5069.158420][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5069.158420][   T73]      ipv6_add_addr+0x411/0x2000
[ 5069.158420][   T73]      inet6_addr_add+0x30e/0xa40
[ 5069.158420][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5069.158420][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5069.158420][   T73]      netlink_rcv_skb+0x130/0x360
[ 5069.158420][   T73]      netlink_unicast+0x449/0x710
[ 5069.158420][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5069.158420][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5069.158420][   T73]      ___sys_sendmsg+0xee/0x170
[ 5069.158420][   T73]      __sys_sendmsg+0xcd/0x170
[ 5069.158420][   T73]      do_syscall_64+0xc6/0x1e0
[ 5069.158420][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5069.158420][   T73] 
[ 5069.160657][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5069.160657][   T73]      netdev_get_by_index+0x5e/0x80
[ 5069.160657][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5069.160657][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5069.160657][   T73]      ip6_route_add+0x1c/0x140
[ 5069.160657][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5069.160657][   T73]      addrconf_add_dev+0xe2/0x170
[ 5069.160657][   T73]      inet6_addr_add+0x12f/0xa40
[ 5069.160657][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5069.160657][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5069.160657][   T73]      netlink_rcv_skb+0x130/0x360
[ 5069.160657][   T73]      netlink_unicast+0x449/0x710
[ 5069.160657][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5069.160657][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5069.160657][   T73]      ___sys_sendmsg+0xee/0x170
[ 5069.160657][   T73]      __sys_sendmsg+0xcd/0x170
[ 5069.160657][   T73]      do_syscall_64+0xc6/0x1e0
[ 5069.160657][   T73] 
[ 5069.162861][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5069.162861][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5069.162861][   T73]      ipv6_find_idev+0x102/0x170
[ 5069.162861][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5069.162861][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5069.162861][   T73]      netlink_rcv_skb+0x130/0x360
[ 5069.162861][   T73]      netlink_unicast+0x449/0x710
[ 5069.162861][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5069.162861][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5069.162861][   T73]      ___sys_sendmsg+0xee/0x170
[ 5069.162861][   T73]      __sys_sendmsg+0xcd/0x170
[ 5069.162861][   T73]      do_syscall_64+0xc6/0x1e0
[ 5069.162861][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5069.162861][   T73] 
[ 5069.164575][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5069.164575][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5069.164575][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5069.164575][   T73]      ipv6_find_idev+0x102/0x170
[ 5069.164575][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5069.164575][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5069.164575][   T73]      netlink_rcv_skb+0x130/0x360
[ 5069.164575][   T73]      netlink_unicast+0x449/0x710
[ 5069.164575][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5069.164575][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5069.164575][   T73]      ___sys_sendmsg+0xee/0x170
[ 5069.164575][   T73]      __sys_sendmsg+0xcd/0x170
[ 5069.164575][   T73]      do_syscall_64+0xc6/0x1e0
[ 5069.164575][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5069.164575][   T73] 
[ 5069.166466][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5069.166796][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5069.166796][   T73]      netdev_get_by_index+0x5e/0x80
[ 5069.166796][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5069.166796][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5069.166796][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5069.166796][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5069.166796][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5069.166796][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5069.166796][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5069.166796][   T73]      addrconf_dad_begin+0x310/0x670
[ 5069.166796][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5069.166796][   T73]      process_one_work+0x84d/0x18a0
[ 5069.166796][   T73]      worker_thread+0x587/0xd30
[ 5069.166796][   T73]      kthread+0x28a/0x350
[ 5069.166796][   T73]      ret_from_fork+0x31/0x70
[ 5069.166796][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5069.166796][   T73] 
[ 5069.168915][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5069.168915][   T73]      netdev_get_by_index+0x5e/0x80
[ 5069.168915][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5069.168915][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5069.168915][   T73]      ip6_route_add+0x1c/0x140
[ 5069.168915][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5069.168915][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5069.168915][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5069.168915][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5069.168915][   T73]      netlink_rcv_skb+0x130/0x360
[ 5069.168915][   T73]      netlink_unicast+0x449/0x710
[ 5069.168915][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5069.168915][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5069.168915][   T73]      ___sys_sendmsg+0xee/0x170
[ 5069.168915][   T73]      __sys_sendmsg+0xcd/0x170
[ 5069.168915][   T73]      do_syscall_64+0xc6/0x1e0
[ 5069.168915][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5069.168915][   T73] 
[ 5069.171150][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5069.171150][   T73]      netdev_get_by_index+0x5e/0x80
[ 5069.171150][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5069.171150][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5069.171150][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5069.171150][   T73]      ipv6_add_addr+0x411/0x2000
[ 5069.171150][   T73]      inet6_addr_add+0x30e/0xa40
[ 5069.171150][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5069.171150][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5069.171150][   T73]      netlink_rcv_skb+0x130/0x360
[ 5069.171150][   T73]      netlink_unicast+0x449/0x710
[ 5069.171150][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5069.171150][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5069.171150][   T73]      ___sys_sendmsg+0xee/0x170
[ 5069.171150][   T73]      __sys_sendmsg+0xcd/0x170
[ 5069.171150][   T73]      do_syscall_64+0xc6/0x1e0
[ 5069.171150][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5069.171150][   T73] 
[ 5069.173391][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5069.173391][   T73]      netdev_get_by_index+0x5e/0x80
[ 5069.173391][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5069.173391][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5069.173391][   T73]      ip6_route_add+0x1c/0x140
[ 5069.173391][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5069.173391][   T73]      addrconf_add_dev+0xe2/0x170
[ 5069.173391][   T73]      inet6_addr_add+0x12f/0xa40
[ 5069.173391][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5069.173391][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5069.173391][   T73]      netlink_rcv_skb+0x130/0x360
[ 5069.173391][   T73]      netlink_unicast+0x449/0x710
[ 5069.173391][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5069.173391][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5069.173391][   T73]      ___sys_sendmsg+0xee/0x170
[ 5069.173391][   T73]      __sys_sendmsg+0xcd/0x170
[ 5069.173391][   T73]      do_syscall_64+0xc6/0x1e0
[ 5069.173391][   T73] 
[ 5069.175574][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5069.175574][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5069.175574][   T73]      ipv6_find_idev+0x102/0x170
[ 5069.175574][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5069.175574][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5069.175574][   T73]      netlink_rcv_skb+0x130/0x360
[ 5069.175574][   T73]      netlink_unicast+0x449/0x710
[ 5069.175574][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5069.175574][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5069.175574][   T73]      ___sys_sendmsg+0xee/0x170
[ 5069.175574][   T73]      __sys_sendmsg+0xcd/0x170
[ 5069.175574][   T73]      do_syscall_64+0xc6/0x1e0
[ 5069.175574][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5069.175574][   T73] 
[ 5069.177292][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5069.177292][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5069.177292][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5069.177292][   T73]      ipv6_find_idev+0x102/0x170
[ 5069.177292][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5069.177292][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5069.177292][   T73]      netlink_rcv_skb+0x130/0x360
[ 5069.177292][   T73]      netlink_unicast+0x449/0x710
[ 5069.177292][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5069.177292][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5069.177292][   T73]      ___sys_sendmsg+0xee/0x170
[ 5069.177292][   T73]      __sys_sendmsg+0xcd/0x170
[ 5069.177292][   T73]      do_syscall_64+0xc6/0x1e0
[ 5069.177292][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5069.177292][   T73] 
[ 5069.179164][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5069.179466][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5069.179466][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5069.179466][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5069.179466][   T73]      fib6_nh_init+0xa22/0x1580
[ 5069.179466][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5069.179466][   T73]      ip6_route_add+0x1c/0x140
[ 5069.179466][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5069.179466][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5069.179466][   T73]      netlink_rcv_skb+0x130/0x360
[ 5069.179466][   T73]      netlink_unicast+0x449/0x710
[ 5069.179466][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5069.179466][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5069.179466][   T73]      ___sys_sendmsg+0xee/0x170
[ 5069.179466][   T73]      __sys_sendmsg+0xcd/0x170
[ 5069.179466][   T73]      do_syscall_64+0xc6/0x1e0
[ 5069.179466][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5069.179466][   T73] 
[ 5069.181737][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5069.181737][   T73]      dst_init+0x84/0x4a0
[ 5069.181737][   T73]      dst_alloc+0x97/0x150
[ 5069.181737][   T73]      ip6_dst_alloc+0x23/0x90
[ 5069.181737][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5069.181737][   T73]      ip6_pol_route+0x56f/0x840
[ 5069.181737][   T73]      fib6_rule_lookup+0x456/0x630
[ 5069.181737][   T73]      ip6_route_input+0x59c/0xa50
[ 5069.181737][   T73]      ipv6_rcv+0x397/0x810
[ 5069.181737][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5069.181737][   T73]      process_backlog+0x101/0x620
[ 5069.181737][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5069.181737][   T73]      net_rx_action+0x495/0xbe0
[ 5069.181737][   T73]      __do_softirq+0x1b5/0x7f6
[ 5069.181737][   T73] 
[ 5069.183796][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5069.183796][   T73]      netdev_get_by_index+0x5e/0x80
[ 5069.183796][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5069.183796][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5069.183796][   T73]      ip6_route_add+0x1c/0x140
[ 5069.183796][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5069.183796][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5069.183796][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5069.183796][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5069.183796][   T73]      netlink_rcv_skb+0x130/0x360
[ 5069.183796][   T73]      netlink_unicast+0x449/0x710
[ 5069.183796][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5069.183796][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5069.183796][   T73]      ___sys_sendmsg+0xee/0x170
[ 5069.183796][   T73]      __sys_sendmsg+0xcd/0x170
[ 5069.183796][   T73]      do_syscall_64+0xc6/0x1e0
[ 5069.183796][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5069.183796][   T73] 
[ 5069.186276][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5069.186276][   T73]      netdev_get_by_index+0x5e/0x80
[ 5069.186276][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5069.186276][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5069.186276][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5069.186276][   T73]      ipv6_add_addr+0x411/0x2000
[ 5069.186276][   T73]      inet6_addr_add+0x30e/0xa40
[ 5069.186276][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5069.186276][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5069.186276][   T73]      netlink_rcv_skb+0x130/0x360
[ 5069.186276][   T73]      netlink_unicast+0x449/0x710
[ 5069.186276][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5069.186276][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5069.186276][   T73]      ___sys_sendmsg+0xee/0x170
[ 5069.186276][   T73]      __sys_sendmsg+0xcd/0x170
[ 5069.186276][   T73]      do_syscall_64+0xc6/0x1e0
[ 5069.186276][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5069.186276][   T73] 
[ 5069.188679][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5069.188679][   T73]      netdev_get_by_index+0x5e/0x80
[ 5069.188679][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5069.188679][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5069.188679][   T73]      ip6_route_add+0x1c/0x140
[ 5069.188679][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5069.188679][   T73]      addrconf_add_dev+0xe2/0x170
[ 5069.188679][   T73]      inet6_addr_add+0x12f/0xa40
[ 5069.188679][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5069.188679][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5069.188679][   T73]      netlink_rcv_skb+0x130/0x360
[ 5069.188679][   T73]      netlink_unicast+0x449/0x710
[ 5069.188679][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5069.188679][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5069.188679][   T73]      ___sys_sendmsg+0xee/0x170
[ 5069.188679][   T73]      __sys_sendmsg+0xcd/0x170
[ 5069.188679][   T73]      do_syscall_64+0xc6/0x1e0
[ 5069.188679][   T73] 
[ 5069.191147][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5069.191147][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5069.191147][   T73]      ipv6_find_idev+0x102/0x170
[ 5069.191147][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5069.191147][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5069.191147][   T73]      netlink_rcv_skb+0x130/0x360
[ 5069.191147][   T73]      netlink_unicast+0x449/0x710
[ 5069.191147][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5069.191147][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5069.191147][   T73]      ___sys_sendmsg+0xee/0x170
[ 5069.191147][   T73]      __sys_sendmsg+0xcd/0x170
[ 5069.191147][   T73]      do_syscall_64+0xc6/0x1e0
[ 5069.191147][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5069.191147][   T73] 
[ 5069.193050][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5069.193050][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5069.193050][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5069.193050][   T73]      ipv6_find_idev+0x102/0x170
[ 5069.193050][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5069.193050][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5069.193050][   T73]      netlink_rcv_skb+0x130/0x360
[ 5069.193050][   T73]      netlink_unicast+0x449/0x710
[ 5069.193050][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5069.193050][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5069.193050][   T73]      ___sys_sendmsg+0xee/0x170
[ 5069.193050][   T73]      __sys_sendmsg+0xcd/0x170
[ 5069.193050][   T73]      do_syscall_64+0xc6/0x1e0
[ 5069.193050][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5069.193050][   T73] 
[ 5069.195167][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5069.195460][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5069.195460][   T73]      netdev_get_by_index+0x5e/0x80
[ 5069.195460][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5069.195460][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5069.195460][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5069.195460][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5069.195460][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5069.195460][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5069.195460][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5069.195460][   T73]      addrconf_dad_begin+0x310/0x670
[ 5069.195460][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5069.195460][   T73]      process_one_work+0x84d/0x18a0
[ 5069.195460][   T73]      worker_thread+0x587/0xd30
[ 5069.195460][   T73]      kthread+0x28a/0x350
[ 5069.195460][   T73]      ret_from_fork+0x31/0x70
[ 5069.195460][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5069.195460][   T73] 
[ 5069.197832][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5069.197832][   T73]      netdev_get_by_index+0x5e/0x80
[ 5069.197832][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5069.197832][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5069.197832][   T73]      ip6_route_add+0x1c/0x140
[ 5069.197832][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5069.197832][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5069.197832][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5069.197832][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5069.197832][   T73]      netlink_rcv_skb+0x130/0x360
[ 5069.197832][   T73]      netlink_unicast+0x449/0x710
[ 5069.197832][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5069.197832][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5069.197832][   T73]      ___sys_sendmsg+0xee/0x170
[ 5069.197832][   T73]      __sys_sendmsg+0xcd/0x170
[ 5069.197832][   T73]      do_syscall_64+0xc6/0x1e0
[ 5069.197832][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5069.197832][   T73] 
[ 5069.200305][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5069.200305][   T73]      netdev_get_by_index+0x5e/0x80
[ 5069.200305][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5069.200305][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5069.200305][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5069.200305][   T73]      ipv6_add_addr+0x411/0x2000
[ 5069.200305][   T73]      inet6_addr_add+0x30e/0xa40
[ 5069.200305][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5069.200305][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5069.200305][   T73]      netlink_rcv_skb+0x130/0x360
[ 5069.200305][   T73]      netlink_unicast+0x449/0x710
[ 5069.200305][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5069.200305][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5069.200305][   T73]      ___sys_sendmsg+0xee/0x170
[ 5069.200305][   T73]      __sys_sendmsg+0xcd/0x170
[ 5069.200305][   T73]      do_syscall_64+0xc6/0x1e0
[ 5069.200305][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5069.200305][   T73] 
[ 5069.202766][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5069.202766][   T73]      netdev_get_by_index+0x5e/0x80
[ 5069.202766][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5069.202766][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5069.202766][   T73]      ip6_route_add+0x1c/0x140
[ 5069.202766][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5069.202766][   T73]      addrconf_add_dev+0xe2/0x170
[ 5069.202766][   T73]      inet6_addr_add+0x12f/0xa40
[ 5069.202766][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5069.202766][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5069.202766][   T73]      netlink_rcv_skb+0x130/0x360
[ 5069.202766][   T73]      netlink_unicast+0x449/0x710
[ 5069.202766][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5069.202766][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5069.202766][   T73]      ___sys_sendmsg+0xee/0x170
[ 5069.202766][   T73]      __sys_sendmsg+0xcd/0x170
[ 5069.202766][   T73]      do_syscall_64+0xc6/0x1e0
[ 5069.202766][   T73] 
[ 5069.205265][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5069.205265][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5069.205265][   T73]      ipv6_find_idev+0x102/0x170
[ 5069.205265][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5069.205265][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5069.205265][   T73]      netlink_rcv_skb+0x130/0x360
[ 5069.205265][   T73]      netlink_unicast+0x449/0x710
[ 5069.205265][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5069.205265][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5069.205265][   T73]      ___sys_sendmsg+0xee/0x170
[ 5069.205265][   T73]      __sys_sendmsg+0xcd/0x170
[ 5069.205265][   T73]      do_syscall_64+0xc6/0x1e0
[ 5069.205265][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5069.205265][   T73] 
[ 5069.207184][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5069.207184][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5069.207184][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5069.207184][   T73]      ipv6_find_idev+0x102/0x170
[ 5069.207184][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5069.207184][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5069.207184][   T73]      netlink_rcv_skb+0x130/0x360
[ 5069.207184][   T73]      netlink_unicast+0x449/0x710
[ 5069.207184][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5069.207184][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5069.207184][   T73]      ___sys_sendmsg+0xee/0x170
[ 5069.207184][   T73]      __sys_sendmsg+0xcd/0x170
[ 5069.207184][   T73]      do_syscall_64+0xc6/0x1e0
[ 5069.207184][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5069.207184][   T73] 
[ 5079.295803][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5079.296326][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5079.296326][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5079.296326][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5079.296326][   T73]      fib6_nh_init+0xa22/0x1580
[ 5079.296326][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5079.296326][   T73]      ip6_route_add+0x1c/0x140
[ 5079.296326][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5079.296326][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5079.296326][   T73]      netlink_rcv_skb+0x130/0x360
[ 5079.296326][   T73]      netlink_unicast+0x449/0x710
[ 5079.296326][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5079.296326][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5079.296326][   T73]      ___sys_sendmsg+0xee/0x170
[ 5079.296326][   T73]      __sys_sendmsg+0xcd/0x170
[ 5079.296326][   T73]      do_syscall_64+0xc6/0x1e0
[ 5079.296326][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5079.296326][   T73] 
[ 5079.298460][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5079.298460][   T73]      dst_init+0x84/0x4a0
[ 5079.298460][   T73]      dst_alloc+0x97/0x150
[ 5079.298460][   T73]      ip6_dst_alloc+0x23/0x90
[ 5079.298460][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5079.298460][   T73]      ip6_pol_route+0x56f/0x840
[ 5079.298460][   T73]      fib6_rule_lookup+0x456/0x630
[ 5079.298460][   T73]      ip6_route_input+0x59c/0xa50
[ 5079.298460][   T73]      ipv6_rcv+0x397/0x810
[ 5079.298460][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5079.298460][   T73]      process_backlog+0x101/0x620
[ 5079.298460][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5079.298460][   T73]      net_rx_action+0x495/0xbe0
[ 5079.298460][   T73]      __do_softirq+0x1b5/0x7f6
[ 5079.298460][   T73] 
[ 5079.300301][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5079.300301][   T73]      netdev_get_by_index+0x5e/0x80
[ 5079.300301][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5079.300301][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5079.300301][   T73]      ip6_route_add+0x1c/0x140
[ 5079.300301][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5079.300301][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5079.300301][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5079.300301][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5079.300301][   T73]      netlink_rcv_skb+0x130/0x360
[ 5079.300301][   T73]      netlink_unicast+0x449/0x710
[ 5079.300301][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5079.300301][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5079.300301][   T73]      ___sys_sendmsg+0xee/0x170
[ 5079.300301][   T73]      __sys_sendmsg+0xcd/0x170
[ 5079.300301][   T73]      do_syscall_64+0xc6/0x1e0
[ 5079.300301][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5079.300301][   T73] 
[ 5079.302583][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5079.302583][   T73]      netdev_get_by_index+0x5e/0x80
[ 5079.302583][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5079.302583][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5079.302583][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5079.302583][   T73]      ipv6_add_addr+0x411/0x2000
[ 5079.302583][   T73]      inet6_addr_add+0x30e/0xa40
[ 5079.302583][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5079.302583][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5079.302583][   T73]      netlink_rcv_skb+0x130/0x360
[ 5079.302583][   T73]      netlink_unicast+0x449/0x710
[ 5079.302583][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5079.302583][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5079.302583][   T73]      ___sys_sendmsg+0xee/0x170
[ 5079.302583][   T73]      __sys_sendmsg+0xcd/0x170
[ 5079.302583][   T73]      do_syscall_64+0xc6/0x1e0
[ 5079.302583][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5079.302583][   T73] 
[ 5079.304828][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5079.304828][   T73]      netdev_get_by_index+0x5e/0x80
[ 5079.304828][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5079.304828][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5079.304828][   T73]      ip6_route_add+0x1c/0x140
[ 5079.304828][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5079.304828][   T73]      addrconf_add_dev+0xe2/0x170
[ 5079.304828][   T73]      inet6_addr_add+0x12f/0xa40
[ 5079.304828][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5079.304828][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5079.304828][   T73]      netlink_rcv_skb+0x130/0x360
[ 5079.304828][   T73]      netlink_unicast+0x449/0x710
[ 5079.304828][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5079.304828][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5079.304828][   T73]      ___sys_sendmsg+0xee/0x170
[ 5079.304828][   T73]      __sys_sendmsg+0xcd/0x170
[ 5079.304828][   T73]      do_syscall_64+0xc6/0x1e0
[ 5079.304828][   T73] 
[ 5079.307050][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5079.307050][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5079.307050][   T73]      ipv6_find_idev+0x102/0x170
[ 5079.307050][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5079.307050][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5079.307050][   T73]      netlink_rcv_skb+0x130/0x360
[ 5079.307050][   T73]      netlink_unicast+0x449/0x710
[ 5079.307050][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5079.307050][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5079.307050][   T73]      ___sys_sendmsg+0xee/0x170
[ 5079.307050][   T73]      __sys_sendmsg+0xcd/0x170
[ 5079.307050][   T73]      do_syscall_64+0xc6/0x1e0
[ 5079.307050][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5079.307050][   T73] 
[ 5079.308800][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5079.308800][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5079.308800][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5079.308800][   T73]      ipv6_find_idev+0x102/0x170
[ 5079.308800][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5079.308800][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5079.308800][   T73]      netlink_rcv_skb+0x130/0x360
[ 5079.308800][   T73]      netlink_unicast+0x449/0x710
[ 5079.308800][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5079.308800][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5079.308800][   T73]      ___sys_sendmsg+0xee/0x170
[ 5079.308800][   T73]      __sys_sendmsg+0xcd/0x170
[ 5079.308800][   T73]      do_syscall_64+0xc6/0x1e0
[ 5079.308800][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5079.308800][   T73] 
[ 5079.310674][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5079.310991][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5079.310991][   T73]      netdev_get_by_index+0x5e/0x80
[ 5079.310991][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5079.310991][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5079.310991][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5079.310991][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5079.310991][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5079.310991][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5079.310991][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5079.310991][   T73]      addrconf_dad_begin+0x310/0x670
[ 5079.310991][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5079.310991][   T73]      process_one_work+0x84d/0x18a0
[ 5079.310991][   T73]      worker_thread+0x587/0xd30
[ 5079.310991][   T73]      kthread+0x28a/0x350
[ 5079.310991][   T73]      ret_from_fork+0x31/0x70
[ 5079.310991][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5079.310991][   T73] 
[ 5079.313177][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5079.313177][   T73]      netdev_get_by_index+0x5e/0x80
[ 5079.313177][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5079.313177][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5079.313177][   T73]      ip6_route_add+0x1c/0x140
[ 5079.313177][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5079.313177][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5079.313177][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5079.313177][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5079.313177][   T73]      netlink_rcv_skb+0x130/0x360
[ 5079.313177][   T73]      netlink_unicast+0x449/0x710
[ 5079.313177][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5079.313177][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5079.313177][   T73]      ___sys_sendmsg+0xee/0x170
[ 5079.313177][   T73]      __sys_sendmsg+0xcd/0x170
[ 5079.313177][   T73]      do_syscall_64+0xc6/0x1e0
[ 5079.313177][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5079.313177][   T73] 
[ 5079.315418][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5079.315418][   T73]      netdev_get_by_index+0x5e/0x80
[ 5079.315418][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5079.315418][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5079.315418][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5079.315418][   T73]      ipv6_add_addr+0x411/0x2000
[ 5079.315418][   T73]      inet6_addr_add+0x30e/0xa40
[ 5079.315418][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5079.315418][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5079.315418][   T73]      netlink_rcv_skb+0x130/0x360
[ 5079.315418][   T73]      netlink_unicast+0x449/0x710
[ 5079.315418][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5079.315418][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5079.315418][   T73]      ___sys_sendmsg+0xee/0x170
[ 5079.315418][   T73]      __sys_sendmsg+0xcd/0x170
[ 5079.315418][   T73]      do_syscall_64+0xc6/0x1e0
[ 5079.315418][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5079.315418][   T73] 
[ 5079.317631][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5079.317631][   T73]      netdev_get_by_index+0x5e/0x80
[ 5079.317631][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5079.317631][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5079.317631][   T73]      ip6_route_add+0x1c/0x140
[ 5079.317631][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5079.317631][   T73]      addrconf_add_dev+0xe2/0x170
[ 5079.317631][   T73]      inet6_addr_add+0x12f/0xa40
[ 5079.317631][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5079.317631][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5079.317631][   T73]      netlink_rcv_skb+0x130/0x360
[ 5079.317631][   T73]      netlink_unicast+0x449/0x710
[ 5079.317631][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5079.317631][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5079.317631][   T73]      ___sys_sendmsg+0xee/0x170
[ 5079.317631][   T73]      __sys_sendmsg+0xcd/0x170
[ 5079.317631][   T73]      do_syscall_64+0xc6/0x1e0
[ 5079.317631][   T73] 
[ 5079.319810][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5079.319810][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5079.319810][   T73]      ipv6_find_idev+0x102/0x170
[ 5079.319810][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5079.319810][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5079.319810][   T73]      netlink_rcv_skb+0x130/0x360
[ 5079.319810][   T73]      netlink_unicast+0x449/0x710
[ 5079.319810][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5079.319810][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5079.319810][   T73]      ___sys_sendmsg+0xee/0x170
[ 5079.319810][   T73]      __sys_sendmsg+0xcd/0x170
[ 5079.319810][   T73]      do_syscall_64+0xc6/0x1e0
[ 5079.319810][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5079.319810][   T73] 
[ 5079.321538][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5079.321538][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5079.321538][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5079.321538][   T73]      ipv6_find_idev+0x102/0x170
[ 5079.321538][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5079.321538][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5079.321538][   T73]      netlink_rcv_skb+0x130/0x360
[ 5079.321538][   T73]      netlink_unicast+0x449/0x710
[ 5079.321538][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5079.321538][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5079.321538][   T73]      ___sys_sendmsg+0xee/0x170
[ 5079.321538][   T73]      __sys_sendmsg+0xcd/0x170
[ 5079.321538][   T73]      do_syscall_64+0xc6/0x1e0
[ 5079.321538][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5079.321538][   T73] 
[ 5079.323445][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5079.323753][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5079.323753][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5079.323753][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5079.323753][   T73]      fib6_nh_init+0xa22/0x1580
[ 5079.323753][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5079.323753][   T73]      ip6_route_add+0x1c/0x140
[ 5079.323753][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5079.323753][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5079.323753][   T73]      netlink_rcv_skb+0x130/0x360
[ 5079.323753][   T73]      netlink_unicast+0x449/0x710
[ 5079.323753][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5079.323753][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5079.323753][   T73]      ___sys_sendmsg+0xee/0x170
[ 5079.323753][   T73]      __sys_sendmsg+0xcd/0x170
[ 5079.323753][   T73]      do_syscall_64+0xc6/0x1e0
[ 5079.323753][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5079.323753][   T73] 
[ 5079.326064][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5079.326064][   T73]      dst_init+0x84/0x4a0
[ 5079.326064][   T73]      dst_alloc+0x97/0x150
[ 5079.326064][   T73]      ip6_dst_alloc+0x23/0x90
[ 5079.326064][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5079.326064][   T73]      ip6_pol_route+0x56f/0x840
[ 5079.326064][   T73]      fib6_rule_lookup+0x456/0x630
[ 5079.326064][   T73]      ip6_route_input+0x59c/0xa50
[ 5079.326064][   T73]      ipv6_rcv+0x397/0x810
[ 5079.326064][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5079.326064][   T73]      process_backlog+0x101/0x620
[ 5079.326064][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5079.326064][   T73]      net_rx_action+0x495/0xbe0
[ 5079.326064][   T73]      __do_softirq+0x1b5/0x7f6
[ 5079.326064][   T73] 
[ 5079.328044][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5079.328044][   T73]      netdev_get_by_index+0x5e/0x80
[ 5079.328044][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5079.328044][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5079.328044][   T73]      ip6_route_add+0x1c/0x140
[ 5079.328044][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5079.328044][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5079.328044][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5079.328044][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5079.328044][   T73]      netlink_rcv_skb+0x130/0x360
[ 5079.328044][   T73]      netlink_unicast+0x449/0x710
[ 5079.328044][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5079.328044][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5079.328044][   T73]      ___sys_sendmsg+0xee/0x170
[ 5079.328044][   T73]      __sys_sendmsg+0xcd/0x170
[ 5079.328044][   T73]      do_syscall_64+0xc6/0x1e0
[ 5079.328044][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5079.328044][   T73] 
[ 5079.330546][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5079.330546][   T73]      netdev_get_by_index+0x5e/0x80
[ 5079.330546][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5079.330546][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5079.330546][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5079.330546][   T73]      ipv6_add_addr+0x411/0x2000
[ 5079.330546][   T73]      inet6_addr_add+0x30e/0xa40
[ 5079.330546][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5079.330546][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5079.330546][   T73]      netlink_rcv_skb+0x130/0x360
[ 5079.330546][   T73]      netlink_unicast+0x449/0x710
[ 5079.330546][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5079.330546][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5079.330546][   T73]      ___sys_sendmsg+0xee/0x170
[ 5079.330546][   T73]      __sys_sendmsg+0xcd/0x170
[ 5079.330546][   T73]      do_syscall_64+0xc6/0x1e0
[ 5079.330546][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5079.330546][   T73] 
[ 5079.333067][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5079.333067][   T73]      netdev_get_by_index+0x5e/0x80
[ 5079.333067][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5079.333067][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5079.333067][   T73]      ip6_route_add+0x1c/0x140
[ 5079.333067][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5079.333067][   T73]      addrconf_add_dev+0xe2/0x170
[ 5079.333067][   T73]      inet6_addr_add+0x12f/0xa40
[ 5079.333067][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5079.333067][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5079.333067][   T73]      netlink_rcv_skb+0x130/0x360
[ 5079.333067][   T73]      netlink_unicast+0x449/0x710
[ 5079.333067][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5079.333067][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5079.333067][   T73]      ___sys_sendmsg+0xee/0x170
[ 5079.333067][   T73]      __sys_sendmsg+0xcd/0x170
[ 5079.333067][   T73]      do_syscall_64+0xc6/0x1e0
[ 5079.333067][   T73] 
[ 5079.335505][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5079.335505][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5079.335505][   T73]      ipv6_find_idev+0x102/0x170
[ 5079.335505][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5079.335505][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5079.335505][   T73]      netlink_rcv_skb+0x130/0x360
[ 5079.335505][   T73]      netlink_unicast+0x449/0x710
[ 5079.335505][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5079.335505][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5079.335505][   T73]      ___sys_sendmsg+0xee/0x170
[ 5079.335505][   T73]      __sys_sendmsg+0xcd/0x170
[ 5079.335505][   T73]      do_syscall_64+0xc6/0x1e0
[ 5079.335505][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5079.335505][   T73] 
[ 5079.337386][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5079.337386][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5079.337386][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5079.337386][   T73]      ipv6_find_idev+0x102/0x170
[ 5079.337386][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5079.337386][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5079.337386][   T73]      netlink_rcv_skb+0x130/0x360
[ 5079.337386][   T73]      netlink_unicast+0x449/0x710
[ 5079.337386][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5079.337386][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5079.337386][   T73]      ___sys_sendmsg+0xee/0x170
[ 5079.337386][   T73]      __sys_sendmsg+0xcd/0x170
[ 5079.337386][   T73]      do_syscall_64+0xc6/0x1e0
[ 5079.337386][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5079.337386][   T73] 
[ 5079.339390][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5079.340198][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5079.340198][   T73]      netdev_get_by_index+0x5e/0x80
[ 5079.340198][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5079.340198][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5079.340198][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5079.340198][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5079.340198][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5079.340198][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5079.340198][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5079.340198][   T73]      addrconf_dad_begin+0x310/0x670
[ 5079.340198][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5079.340198][   T73]      process_one_work+0x84d/0x18a0
[ 5079.340198][   T73]      worker_thread+0x587/0xd30
[ 5079.340198][   T73]      kthread+0x28a/0x350
[ 5079.340198][   T73]      ret_from_fork+0x31/0x70
[ 5079.340198][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5079.340198][   T73] 
[ 5079.342361][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5079.342361][   T73]      netdev_get_by_index+0x5e/0x80
[ 5079.342361][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5079.342361][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5079.342361][   T73]      ip6_route_add+0x1c/0x140
[ 5079.342361][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5079.342361][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5079.342361][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5079.342361][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5079.342361][   T73]      netlink_rcv_skb+0x130/0x360
[ 5079.342361][   T73]      netlink_unicast+0x449/0x710
[ 5079.342361][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5079.342361][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5079.342361][   T73]      ___sys_sendmsg+0xee/0x170
[ 5079.342361][   T73]      __sys_sendmsg+0xcd/0x170
[ 5079.342361][   T73]      do_syscall_64+0xc6/0x1e0
[ 5079.342361][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5079.342361][   T73] 
[ 5079.344669][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5079.344669][   T73]      netdev_get_by_index+0x5e/0x80
[ 5079.344669][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5079.344669][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5079.344669][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5079.344669][   T73]      ipv6_add_addr+0x411/0x2000
[ 5079.344669][   T73]      inet6_addr_add+0x30e/0xa40
[ 5079.344669][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5079.344669][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5079.344669][   T73]      netlink_rcv_skb+0x130/0x360
[ 5079.344669][   T73]      netlink_unicast+0x449/0x710
[ 5079.344669][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5079.344669][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5079.344669][   T73]      ___sys_sendmsg+0xee/0x170
[ 5079.344669][   T73]      __sys_sendmsg+0xcd/0x170
[ 5079.344669][   T73]      do_syscall_64+0xc6/0x1e0
[ 5079.344669][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5079.344669][   T73] 
[ 5079.347149][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5079.347149][   T73]      netdev_get_by_index+0x5e/0x80
[ 5079.347149][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5079.347149][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5079.347149][   T73]      ip6_route_add+0x1c/0x140
[ 5079.347149][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5079.347149][   T73]      addrconf_add_dev+0xe2/0x170
[ 5079.347149][   T73]      inet6_addr_add+0x12f/0xa40
[ 5079.347149][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5079.347149][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5079.347149][   T73]      netlink_rcv_skb+0x130/0x360
[ 5079.347149][   T73]      netlink_unicast+0x449/0x710
[ 5079.347149][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5079.347149][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5079.347149][   T73]      ___sys_sendmsg+0xee/0x170
[ 5079.347149][   T73]      __sys_sendmsg+0xcd/0x170
[ 5079.347149][   T73]      do_syscall_64+0xc6/0x1e0
[ 5079.347149][   T73] 
[ 5079.349509][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5079.349509][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5079.349509][   T73]      ipv6_find_idev+0x102/0x170
[ 5079.349509][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5079.349509][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5079.349509][   T73]      netlink_rcv_skb+0x130/0x360
[ 5079.349509][   T73]      netlink_unicast+0x449/0x710
[ 5079.349509][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5079.349509][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5079.349509][   T73]      ___sys_sendmsg+0xee/0x170
[ 5079.349509][   T73]      __sys_sendmsg+0xcd/0x170
[ 5079.349509][   T73]      do_syscall_64+0xc6/0x1e0
[ 5079.349509][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5079.349509][   T73] 
[ 5079.351406][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5079.351406][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5079.351406][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5079.351406][   T73]      ipv6_find_idev+0x102/0x170
[ 5079.351406][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5079.351406][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5079.351406][   T73]      netlink_rcv_skb+0x130/0x360
[ 5079.351406][   T73]      netlink_unicast+0x449/0x710
[ 5079.351406][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5079.351406][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5079.351406][   T73]      ___sys_sendmsg+0xee/0x170
[ 5079.351406][   T73]      __sys_sendmsg+0xcd/0x170
[ 5079.351406][   T73]      do_syscall_64+0xc6/0x1e0
[ 5079.351406][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5079.351406][   T73] 
[ 5089.455747][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5089.456219][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5089.456219][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5089.456219][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5089.456219][   T73]      fib6_nh_init+0xa22/0x1580
[ 5089.456219][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5089.456219][   T73]      ip6_route_add+0x1c/0x140
[ 5089.456219][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5089.456219][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5089.456219][   T73]      netlink_rcv_skb+0x130/0x360
[ 5089.456219][   T73]      netlink_unicast+0x449/0x710
[ 5089.456219][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5089.456219][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5089.456219][   T73]      ___sys_sendmsg+0xee/0x170
[ 5089.456219][   T73]      __sys_sendmsg+0xcd/0x170
[ 5089.456219][   T73]      do_syscall_64+0xc6/0x1e0
[ 5089.456219][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5089.456219][   T73] 
[ 5089.458152][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5089.458152][   T73]      dst_init+0x84/0x4a0
[ 5089.458152][   T73]      dst_alloc+0x97/0x150
[ 5089.458152][   T73]      ip6_dst_alloc+0x23/0x90
[ 5089.458152][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5089.458152][   T73]      ip6_pol_route+0x56f/0x840
[ 5089.458152][   T73]      fib6_rule_lookup+0x456/0x630
[ 5089.458152][   T73]      ip6_route_input+0x59c/0xa50
[ 5089.458152][   T73]      ipv6_rcv+0x397/0x810
[ 5089.458152][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5089.458152][   T73]      process_backlog+0x101/0x620
[ 5089.458152][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5089.458152][   T73]      net_rx_action+0x495/0xbe0
[ 5089.458152][   T73]      __do_softirq+0x1b5/0x7f6
[ 5089.458152][   T73] 
[ 5089.459800][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5089.459800][   T73]      netdev_get_by_index+0x5e/0x80
[ 5089.459800][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5089.459800][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5089.459800][   T73]      ip6_route_add+0x1c/0x140
[ 5089.459800][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5089.459800][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5089.459800][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5089.459800][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5089.459800][   T73]      netlink_rcv_skb+0x130/0x360
[ 5089.459800][   T73]      netlink_unicast+0x449/0x710
[ 5089.459800][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5089.459800][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5089.459800][   T73]      ___sys_sendmsg+0xee/0x170
[ 5089.459800][   T73]      __sys_sendmsg+0xcd/0x170
[ 5089.459800][   T73]      do_syscall_64+0xc6/0x1e0
[ 5089.459800][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5089.459800][   T73] 
[ 5089.461828][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5089.461828][   T73]      netdev_get_by_index+0x5e/0x80
[ 5089.461828][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5089.461828][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5089.461828][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5089.461828][   T73]      ipv6_add_addr+0x411/0x2000
[ 5089.461828][   T73]      inet6_addr_add+0x30e/0xa40
[ 5089.461828][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5089.461828][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5089.461828][   T73]      netlink_rcv_skb+0x130/0x360
[ 5089.461828][   T73]      netlink_unicast+0x449/0x710
[ 5089.461828][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5089.461828][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5089.461828][   T73]      ___sys_sendmsg+0xee/0x170
[ 5089.461828][   T73]      __sys_sendmsg+0xcd/0x170
[ 5089.461828][   T73]      do_syscall_64+0xc6/0x1e0
[ 5089.461828][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5089.461828][   T73] 
[ 5089.463823][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5089.463823][   T73]      netdev_get_by_index+0x5e/0x80
[ 5089.463823][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5089.463823][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5089.463823][   T73]      ip6_route_add+0x1c/0x140
[ 5089.463823][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5089.463823][   T73]      addrconf_add_dev+0xe2/0x170
[ 5089.463823][   T73]      inet6_addr_add+0x12f/0xa40
[ 5089.463823][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5089.463823][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5089.463823][   T73]      netlink_rcv_skb+0x130/0x360
[ 5089.463823][   T73]      netlink_unicast+0x449/0x710
[ 5089.463823][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5089.463823][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5089.463823][   T73]      ___sys_sendmsg+0xee/0x170
[ 5089.463823][   T73]      __sys_sendmsg+0xcd/0x170
[ 5089.463823][   T73]      do_syscall_64+0xc6/0x1e0
[ 5089.463823][   T73] 
[ 5089.465787][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5089.465787][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5089.465787][   T73]      ipv6_find_idev+0x102/0x170
[ 5089.465787][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5089.465787][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5089.465787][   T73]      netlink_rcv_skb+0x130/0x360
[ 5089.465787][   T73]      netlink_unicast+0x449/0x710
[ 5089.465787][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5089.465787][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5089.465787][   T73]      ___sys_sendmsg+0xee/0x170
[ 5089.465787][   T73]      __sys_sendmsg+0xcd/0x170
[ 5089.465787][   T73]      do_syscall_64+0xc6/0x1e0
[ 5089.465787][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5089.465787][   T73] 
[ 5089.467343][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5089.467343][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5089.467343][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5089.467343][   T73]      ipv6_find_idev+0x102/0x170
[ 5089.467343][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5089.467343][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5089.467343][   T73]      netlink_rcv_skb+0x130/0x360
[ 5089.467343][   T73]      netlink_unicast+0x449/0x710
[ 5089.467343][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5089.467343][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5089.467343][   T73]      ___sys_sendmsg+0xee/0x170
[ 5089.467343][   T73]      __sys_sendmsg+0xcd/0x170
[ 5089.467343][   T73]      do_syscall_64+0xc6/0x1e0
[ 5089.467343][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5089.467343][   T73] 
[ 5089.469033][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5089.469318][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5089.469318][   T73]      netdev_get_by_index+0x5e/0x80
[ 5089.469318][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5089.469318][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5089.469318][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5089.469318][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5089.469318][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5089.469318][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5089.469318][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5089.469318][   T73]      addrconf_dad_begin+0x310/0x670
[ 5089.469318][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5089.469318][   T73]      process_one_work+0x84d/0x18a0
[ 5089.469318][   T73]      worker_thread+0x587/0xd30
[ 5089.469318][   T73]      kthread+0x28a/0x350
[ 5089.469318][   T73]      ret_from_fork+0x31/0x70
[ 5089.469318][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5089.469318][   T73] 
[ 5089.471250][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5089.471250][   T73]      netdev_get_by_index+0x5e/0x80
[ 5089.471250][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5089.471250][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5089.471250][   T73]      ip6_route_add+0x1c/0x140
[ 5089.471250][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5089.471250][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5089.471250][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5089.471250][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5089.471250][   T73]      netlink_rcv_skb+0x130/0x360
[ 5089.471250][   T73]      netlink_unicast+0x449/0x710
[ 5089.471250][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5089.471250][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5089.471250][   T73]      ___sys_sendmsg+0xee/0x170
[ 5089.471250][   T73]      __sys_sendmsg+0xcd/0x170
[ 5089.471250][   T73]      do_syscall_64+0xc6/0x1e0
[ 5089.471250][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5089.471250][   T73] 
[ 5089.473245][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5089.473245][   T73]      netdev_get_by_index+0x5e/0x80
[ 5089.473245][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5089.473245][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5089.473245][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5089.473245][   T73]      ipv6_add_addr+0x411/0x2000
[ 5089.473245][   T73]      inet6_addr_add+0x30e/0xa40
[ 5089.473245][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5089.473245][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5089.473245][   T73]      netlink_rcv_skb+0x130/0x360
[ 5089.473245][   T73]      netlink_unicast+0x449/0x710
[ 5089.473245][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5089.473245][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5089.473245][   T73]      ___sys_sendmsg+0xee/0x170
[ 5089.473245][   T73]      __sys_sendmsg+0xcd/0x170
[ 5089.473245][   T73]      do_syscall_64+0xc6/0x1e0
[ 5089.473245][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5089.473245][   T73] 
[ 5089.475251][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5089.475251][   T73]      netdev_get_by_index+0x5e/0x80
[ 5089.475251][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5089.475251][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5089.475251][   T73]      ip6_route_add+0x1c/0x140
[ 5089.475251][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5089.475251][   T73]      addrconf_add_dev+0xe2/0x170
[ 5089.475251][   T73]      inet6_addr_add+0x12f/0xa40
[ 5089.475251][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5089.475251][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5089.475251][   T73]      netlink_rcv_skb+0x130/0x360
[ 5089.475251][   T73]      netlink_unicast+0x449/0x710
[ 5089.475251][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5089.475251][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5089.475251][   T73]      ___sys_sendmsg+0xee/0x170
[ 5089.475251][   T73]      __sys_sendmsg+0xcd/0x170
[ 5089.475251][   T73]      do_syscall_64+0xc6/0x1e0
[ 5089.475251][   T73] 
[ 5089.477216][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5089.477216][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5089.477216][   T73]      ipv6_find_idev+0x102/0x170
[ 5089.477216][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5089.477216][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5089.477216][   T73]      netlink_rcv_skb+0x130/0x360
[ 5089.477216][   T73]      netlink_unicast+0x449/0x710
[ 5089.477216][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5089.477216][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5089.477216][   T73]      ___sys_sendmsg+0xee/0x170
[ 5089.477216][   T73]      __sys_sendmsg+0xcd/0x170
[ 5089.477216][   T73]      do_syscall_64+0xc6/0x1e0
[ 5089.477216][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5089.477216][   T73] 
[ 5089.478767][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5089.478767][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5089.478767][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5089.478767][   T73]      ipv6_find_idev+0x102/0x170
[ 5089.478767][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5089.478767][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5089.478767][   T73]      netlink_rcv_skb+0x130/0x360
[ 5089.478767][   T73]      netlink_unicast+0x449/0x710
[ 5089.478767][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5089.478767][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5089.478767][   T73]      ___sys_sendmsg+0xee/0x170
[ 5089.478767][   T73]      __sys_sendmsg+0xcd/0x170
[ 5089.478767][   T73]      do_syscall_64+0xc6/0x1e0
[ 5089.478767][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5089.478767][   T73] 
[ 5089.480447][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5089.480722][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5089.480722][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5089.480722][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5089.480722][   T73]      fib6_nh_init+0xa22/0x1580
[ 5089.480722][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5089.480722][   T73]      ip6_route_add+0x1c/0x140
[ 5089.480722][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5089.480722][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5089.480722][   T73]      netlink_rcv_skb+0x130/0x360
[ 5089.480722][   T73]      netlink_unicast+0x449/0x710
[ 5089.480722][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5089.480722][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5089.480722][   T73]      ___sys_sendmsg+0xee/0x170
[ 5089.480722][   T73]      __sys_sendmsg+0xcd/0x170
[ 5089.480722][   T73]      do_syscall_64+0xc6/0x1e0
[ 5089.480722][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5089.480722][   T73] 
[ 5089.482782][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5089.482782][   T73]      dst_init+0x84/0x4a0
[ 5089.482782][   T73]      dst_alloc+0x97/0x150
[ 5089.482782][   T73]      ip6_dst_alloc+0x23/0x90
[ 5089.482782][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5089.482782][   T73]      ip6_pol_route+0x56f/0x840
[ 5089.482782][   T73]      fib6_rule_lookup+0x456/0x630
[ 5089.482782][   T73]      ip6_route_input+0x59c/0xa50
[ 5089.482782][   T73]      ipv6_rcv+0x397/0x810
[ 5089.482782][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5089.482782][   T73]      process_backlog+0x101/0x620
[ 5089.482782][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5089.482782][   T73]      net_rx_action+0x495/0xbe0
[ 5089.482782][   T73]      __do_softirq+0x1b5/0x7f6
[ 5089.482782][   T73] 
[ 5089.484587][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5089.484587][   T73]      netdev_get_by_index+0x5e/0x80
[ 5089.484587][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5089.484587][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5089.484587][   T73]      ip6_route_add+0x1c/0x140
[ 5089.484587][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5089.484587][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5089.484587][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5089.484587][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5089.484587][   T73]      netlink_rcv_skb+0x130/0x360
[ 5089.484587][   T73]      netlink_unicast+0x449/0x710
[ 5089.484587][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5089.484587][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5089.484587][   T73]      ___sys_sendmsg+0xee/0x170
[ 5089.484587][   T73]      __sys_sendmsg+0xcd/0x170
[ 5089.484587][   T73]      do_syscall_64+0xc6/0x1e0
[ 5089.484587][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5089.484587][   T73] 
[ 5089.486871][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5089.486871][   T73]      netdev_get_by_index+0x5e/0x80
[ 5089.486871][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5089.486871][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5089.486871][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5089.486871][   T73]      ipv6_add_addr+0x411/0x2000
[ 5089.486871][   T73]      inet6_addr_add+0x30e/0xa40
[ 5089.486871][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5089.486871][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5089.486871][   T73]      netlink_rcv_skb+0x130/0x360
[ 5089.486871][   T73]      netlink_unicast+0x449/0x710
[ 5089.486871][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5089.486871][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5089.486871][   T73]      ___sys_sendmsg+0xee/0x170
[ 5089.486871][   T73]      __sys_sendmsg+0xcd/0x170
[ 5089.486871][   T73]      do_syscall_64+0xc6/0x1e0
[ 5089.486871][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5089.486871][   T73] 
[ 5089.489103][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5089.489103][   T73]      netdev_get_by_index+0x5e/0x80
[ 5089.489103][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5089.489103][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5089.489103][   T73]      ip6_route_add+0x1c/0x140
[ 5089.489103][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5089.489103][   T73]      addrconf_add_dev+0xe2/0x170
[ 5089.489103][   T73]      inet6_addr_add+0x12f/0xa40
[ 5089.489103][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5089.489103][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5089.489103][   T73]      netlink_rcv_skb+0x130/0x360
[ 5089.489103][   T73]      netlink_unicast+0x449/0x710
[ 5089.489103][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5089.489103][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5089.489103][   T73]      ___sys_sendmsg+0xee/0x170
[ 5089.489103][   T73]      __sys_sendmsg+0xcd/0x170
[ 5089.489103][   T73]      do_syscall_64+0xc6/0x1e0
[ 5089.489103][   T73] 
[ 5089.491178][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5089.491178][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5089.491178][   T73]      ipv6_find_idev+0x102/0x170
[ 5089.491178][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5089.491178][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5089.491178][   T73]      netlink_rcv_skb+0x130/0x360
[ 5089.491178][   T73]      netlink_unicast+0x449/0x710
[ 5089.491178][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5089.491178][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5089.491178][   T73]      ___sys_sendmsg+0xee/0x170
[ 5089.491178][   T73]      __sys_sendmsg+0xcd/0x170
[ 5089.491178][   T73]      do_syscall_64+0xc6/0x1e0
[ 5089.491178][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5089.491178][   T73] 
[ 5089.492889][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5089.492889][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5089.492889][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5089.492889][   T73]      ipv6_find_idev+0x102/0x170
[ 5089.492889][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5089.492889][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5089.492889][   T73]      netlink_rcv_skb+0x130/0x360
[ 5089.492889][   T73]      netlink_unicast+0x449/0x710
[ 5089.492889][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5089.492889][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5089.492889][   T73]      ___sys_sendmsg+0xee/0x170
[ 5089.492889][   T73]      __sys_sendmsg+0xcd/0x170
[ 5089.492889][   T73]      do_syscall_64+0xc6/0x1e0
[ 5089.492889][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5089.492889][   T73] 
[ 5089.494779][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5089.495049][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5089.495049][   T73]      netdev_get_by_index+0x5e/0x80
[ 5089.495049][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5089.495049][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5089.495049][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5089.495049][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5089.495049][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5089.495049][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5089.495049][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5089.495049][   T73]      addrconf_dad_begin+0x310/0x670
[ 5089.495049][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5089.495049][   T73]      process_one_work+0x84d/0x18a0
[ 5089.495049][   T73]      worker_thread+0x587/0xd30
[ 5089.495049][   T73]      kthread+0x28a/0x350
[ 5089.495049][   T73]      ret_from_fork+0x31/0x70
[ 5089.495049][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5089.495049][   T73] 
[ 5089.497275][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5089.497275][   T73]      netdev_get_by_index+0x5e/0x80
[ 5089.497275][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5089.497275][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5089.497275][   T73]      ip6_route_add+0x1c/0x140
[ 5089.497275][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5089.497275][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5089.497275][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5089.497275][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5089.497275][   T73]      netlink_rcv_skb+0x130/0x360
[ 5089.497275][   T73]      netlink_unicast+0x449/0x710
[ 5089.497275][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5089.497275][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5089.497275][   T73]      ___sys_sendmsg+0xee/0x170
[ 5089.497275][   T73]      __sys_sendmsg+0xcd/0x170
[ 5089.497275][   T73]      do_syscall_64+0xc6/0x1e0
[ 5089.497275][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5089.497275][   T73] 
[ 5089.499459][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5089.499459][   T73]      netdev_get_by_index+0x5e/0x80
[ 5089.499459][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5089.499459][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5089.499459][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5089.499459][   T73]      ipv6_add_addr+0x411/0x2000
[ 5089.499459][   T73]      inet6_addr_add+0x30e/0xa40
[ 5089.499459][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5089.499459][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5089.499459][   T73]      netlink_rcv_skb+0x130/0x360
[ 5089.499459][   T73]      netlink_unicast+0x449/0x710
[ 5089.499459][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5089.499459][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5089.499459][   T73]      ___sys_sendmsg+0xee/0x170
[ 5089.499459][   T73]      __sys_sendmsg+0xcd/0x170
[ 5089.499459][   T73]      do_syscall_64+0xc6/0x1e0
[ 5089.499459][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5089.499459][   T73] 
[ 5089.501708][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5089.501708][   T73]      netdev_get_by_index+0x5e/0x80
[ 5089.501708][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5089.501708][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5089.501708][   T73]      ip6_route_add+0x1c/0x140
[ 5089.501708][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5089.501708][   T73]      addrconf_add_dev+0xe2/0x170
[ 5089.501708][   T73]      inet6_addr_add+0x12f/0xa40
[ 5089.501708][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5089.501708][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5089.501708][   T73]      netlink_rcv_skb+0x130/0x360
[ 5089.501708][   T73]      netlink_unicast+0x449/0x710
[ 5089.501708][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5089.501708][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5089.501708][   T73]      ___sys_sendmsg+0xee/0x170
[ 5089.501708][   T73]      __sys_sendmsg+0xcd/0x170
[ 5089.501708][   T73]      do_syscall_64+0xc6/0x1e0
[ 5089.501708][   T73] 
[ 5089.503907][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5089.503907][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5089.503907][   T73]      ipv6_find_idev+0x102/0x170
[ 5089.503907][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5089.503907][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5089.503907][   T73]      netlink_rcv_skb+0x130/0x360
[ 5089.503907][   T73]      netlink_unicast+0x449/0x710
[ 5089.503907][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5089.503907][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5089.503907][   T73]      ___sys_sendmsg+0xee/0x170
[ 5089.503907][   T73]      __sys_sendmsg+0xcd/0x170
[ 5089.503907][   T73]      do_syscall_64+0xc6/0x1e0
[ 5089.503907][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5089.503907][   T73] 
[ 5089.505703][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5089.505703][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5089.505703][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5089.505703][   T73]      ipv6_find_idev+0x102/0x170
[ 5089.505703][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5089.505703][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5089.505703][   T73]      netlink_rcv_skb+0x130/0x360
[ 5089.505703][   T73]      netlink_unicast+0x449/0x710
[ 5089.505703][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5089.505703][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5089.505703][   T73]      ___sys_sendmsg+0xee/0x170
[ 5089.505703][   T73]      __sys_sendmsg+0xcd/0x170
[ 5089.505703][   T73]      do_syscall_64+0xc6/0x1e0
[ 5089.505703][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5089.505703][   T73] 
[ 5099.711791][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5099.712299][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5099.712299][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5099.712299][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5099.712299][   T73]      fib6_nh_init+0xa22/0x1580
[ 5099.712299][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5099.712299][   T73]      ip6_route_add+0x1c/0x140
[ 5099.712299][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5099.712299][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5099.712299][   T73]      netlink_rcv_skb+0x130/0x360
[ 5099.712299][   T73]      netlink_unicast+0x449/0x710
[ 5099.712299][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5099.712299][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5099.712299][   T73]      ___sys_sendmsg+0xee/0x170
[ 5099.712299][   T73]      __sys_sendmsg+0xcd/0x170
[ 5099.712299][   T73]      do_syscall_64+0xc6/0x1e0
[ 5099.712299][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5099.712299][   T73] 
[ 5099.714392][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5099.714392][   T73]      dst_init+0x84/0x4a0
[ 5099.714392][   T73]      dst_alloc+0x97/0x150
[ 5099.714392][   T73]      ip6_dst_alloc+0x23/0x90
[ 5099.714392][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5099.714392][   T73]      ip6_pol_route+0x56f/0x840
[ 5099.714392][   T73]      fib6_rule_lookup+0x456/0x630
[ 5099.714392][   T73]      ip6_route_input+0x59c/0xa50
[ 5099.714392][   T73]      ipv6_rcv+0x397/0x810
[ 5099.714392][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5099.714392][   T73]      process_backlog+0x101/0x620
[ 5099.714392][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5099.714392][   T73]      net_rx_action+0x495/0xbe0
[ 5099.714392][   T73]      __do_softirq+0x1b5/0x7f6
[ 5099.714392][   T73] 
[ 5099.716218][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5099.716218][   T73]      netdev_get_by_index+0x5e/0x80
[ 5099.716218][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5099.716218][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5099.716218][   T73]      ip6_route_add+0x1c/0x140
[ 5099.716218][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5099.716218][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5099.716218][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5099.716218][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5099.716218][   T73]      netlink_rcv_skb+0x130/0x360
[ 5099.716218][   T73]      netlink_unicast+0x449/0x710
[ 5099.716218][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5099.716218][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5099.716218][   T73]      ___sys_sendmsg+0xee/0x170
[ 5099.716218][   T73]      __sys_sendmsg+0xcd/0x170
[ 5099.716218][   T73]      do_syscall_64+0xc6/0x1e0
[ 5099.716218][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5099.716218][   T73] 
[ 5099.718448][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5099.718448][   T73]      netdev_get_by_index+0x5e/0x80
[ 5099.718448][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5099.718448][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5099.718448][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5099.718448][   T73]      ipv6_add_addr+0x411/0x2000
[ 5099.718448][   T73]      inet6_addr_add+0x30e/0xa40
[ 5099.718448][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5099.718448][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5099.718448][   T73]      netlink_rcv_skb+0x130/0x360
[ 5099.718448][   T73]      netlink_unicast+0x449/0x710
[ 5099.718448][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5099.718448][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5099.718448][   T73]      ___sys_sendmsg+0xee/0x170
[ 5099.718448][   T73]      __sys_sendmsg+0xcd/0x170
[ 5099.718448][   T73]      do_syscall_64+0xc6/0x1e0
[ 5099.718448][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5099.718448][   T73] 
[ 5099.720713][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5099.720713][   T73]      netdev_get_by_index+0x5e/0x80
[ 5099.720713][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5099.720713][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5099.720713][   T73]      ip6_route_add+0x1c/0x140
[ 5099.720713][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5099.720713][   T73]      addrconf_add_dev+0xe2/0x170
[ 5099.720713][   T73]      inet6_addr_add+0x12f/0xa40
[ 5099.720713][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5099.720713][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5099.720713][   T73]      netlink_rcv_skb+0x130/0x360
[ 5099.720713][   T73]      netlink_unicast+0x449/0x710
[ 5099.720713][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5099.720713][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5099.720713][   T73]      ___sys_sendmsg+0xee/0x170
[ 5099.720713][   T73]      __sys_sendmsg+0xcd/0x170
[ 5099.720713][   T73]      do_syscall_64+0xc6/0x1e0
[ 5099.720713][   T73] 
[ 5099.722928][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5099.722928][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5099.722928][   T73]      ipv6_find_idev+0x102/0x170
[ 5099.722928][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5099.722928][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5099.722928][   T73]      netlink_rcv_skb+0x130/0x360
[ 5099.722928][   T73]      netlink_unicast+0x449/0x710
[ 5099.722928][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5099.722928][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5099.722928][   T73]      ___sys_sendmsg+0xee/0x170
[ 5099.722928][   T73]      __sys_sendmsg+0xcd/0x170
[ 5099.722928][   T73]      do_syscall_64+0xc6/0x1e0
[ 5099.722928][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5099.722928][   T73] 
[ 5099.724656][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5099.724656][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5099.724656][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5099.724656][   T73]      ipv6_find_idev+0x102/0x170
[ 5099.724656][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5099.724656][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5099.724656][   T73]      netlink_rcv_skb+0x130/0x360
[ 5099.724656][   T73]      netlink_unicast+0x449/0x710
[ 5099.724656][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5099.724656][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5099.724656][   T73]      ___sys_sendmsg+0xee/0x170
[ 5099.724656][   T73]      __sys_sendmsg+0xcd/0x170
[ 5099.724656][   T73]      do_syscall_64+0xc6/0x1e0
[ 5099.724656][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5099.724656][   T73] 
[ 5099.726544][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5099.726863][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5099.726863][   T73]      netdev_get_by_index+0x5e/0x80
[ 5099.726863][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5099.726863][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5099.726863][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5099.726863][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5099.726863][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5099.726863][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5099.726863][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5099.726863][   T73]      addrconf_dad_begin+0x310/0x670
[ 5099.726863][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5099.726863][   T73]      process_one_work+0x84d/0x18a0
[ 5099.726863][   T73]      worker_thread+0x587/0xd30
[ 5099.726863][   T73]      kthread+0x28a/0x350
[ 5099.726863][   T73]      ret_from_fork+0x31/0x70
[ 5099.726863][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5099.726863][   T73] 
[ 5099.729011][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5099.729011][   T73]      netdev_get_by_index+0x5e/0x80
[ 5099.729011][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5099.729011][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5099.729011][   T73]      ip6_route_add+0x1c/0x140
[ 5099.729011][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5099.729011][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5099.729011][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5099.729011][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5099.729011][   T73]      netlink_rcv_skb+0x130/0x360
[ 5099.729011][   T73]      netlink_unicast+0x449/0x710
[ 5099.729011][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5099.729011][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5099.729011][   T73]      ___sys_sendmsg+0xee/0x170
[ 5099.729011][   T73]      __sys_sendmsg+0xcd/0x170
[ 5099.729011][   T73]      do_syscall_64+0xc6/0x1e0
[ 5099.729011][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5099.729011][   T73] 
[ 5099.731261][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5099.731261][   T73]      netdev_get_by_index+0x5e/0x80
[ 5099.731261][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5099.731261][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5099.731261][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5099.731261][   T73]      ipv6_add_addr+0x411/0x2000
[ 5099.731261][   T73]      inet6_addr_add+0x30e/0xa40
[ 5099.731261][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5099.731261][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5099.731261][   T73]      netlink_rcv_skb+0x130/0x360
[ 5099.731261][   T73]      netlink_unicast+0x449/0x710
[ 5099.731261][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5099.731261][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5099.731261][   T73]      ___sys_sendmsg+0xee/0x170
[ 5099.731261][   T73]      __sys_sendmsg+0xcd/0x170
[ 5099.731261][   T73]      do_syscall_64+0xc6/0x1e0
[ 5099.731261][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5099.731261][   T73] 
[ 5099.733489][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5099.733489][   T73]      netdev_get_by_index+0x5e/0x80
[ 5099.733489][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5099.733489][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5099.733489][   T73]      ip6_route_add+0x1c/0x140
[ 5099.733489][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5099.733489][   T73]      addrconf_add_dev+0xe2/0x170
[ 5099.733489][   T73]      inet6_addr_add+0x12f/0xa40
[ 5099.733489][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5099.733489][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5099.733489][   T73]      netlink_rcv_skb+0x130/0x360
[ 5099.733489][   T73]      netlink_unicast+0x449/0x710
[ 5099.733489][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5099.733489][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5099.733489][   T73]      ___sys_sendmsg+0xee/0x170
[ 5099.733489][   T73]      __sys_sendmsg+0xcd/0x170
[ 5099.733489][   T73]      do_syscall_64+0xc6/0x1e0
[ 5099.733489][   T73] 
[ 5099.735688][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5099.735688][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5099.735688][   T73]      ipv6_find_idev+0x102/0x170
[ 5099.735688][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5099.735688][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5099.735688][   T73]      netlink_rcv_skb+0x130/0x360
[ 5099.735688][   T73]      netlink_unicast+0x449/0x710
[ 5099.735688][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5099.735688][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5099.735688][   T73]      ___sys_sendmsg+0xee/0x170
[ 5099.735688][   T73]      __sys_sendmsg+0xcd/0x170
[ 5099.735688][   T73]      do_syscall_64+0xc6/0x1e0
[ 5099.735688][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5099.735688][   T73] 
[ 5099.737409][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5099.737409][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5099.737409][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5099.737409][   T73]      ipv6_find_idev+0x102/0x170
[ 5099.737409][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5099.737409][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5099.737409][   T73]      netlink_rcv_skb+0x130/0x360
[ 5099.737409][   T73]      netlink_unicast+0x449/0x710
[ 5099.737409][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5099.737409][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5099.737409][   T73]      ___sys_sendmsg+0xee/0x170
[ 5099.737409][   T73]      __sys_sendmsg+0xcd/0x170
[ 5099.737409][   T73]      do_syscall_64+0xc6/0x1e0
[ 5099.737409][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5099.737409][   T73] 
[ 5099.739275][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5099.739566][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5099.739566][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5099.739566][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5099.739566][   T73]      fib6_nh_init+0xa22/0x1580
[ 5099.739566][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5099.739566][   T73]      ip6_route_add+0x1c/0x140
[ 5099.739566][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5099.739566][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5099.739566][   T73]      netlink_rcv_skb+0x130/0x360
[ 5099.739566][   T73]      netlink_unicast+0x449/0x710
[ 5099.739566][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5099.739566][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5099.739566][   T73]      ___sys_sendmsg+0xee/0x170
[ 5099.739566][   T73]      __sys_sendmsg+0xcd/0x170
[ 5099.739566][   T73]      do_syscall_64+0xc6/0x1e0
[ 5099.739566][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5099.739566][   T73] 
[ 5099.741864][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5099.741864][   T73]      dst_init+0x84/0x4a0
[ 5099.741864][   T73]      dst_alloc+0x97/0x150
[ 5099.741864][   T73]      ip6_dst_alloc+0x23/0x90
[ 5099.741864][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5099.741864][   T73]      ip6_pol_route+0x56f/0x840
[ 5099.741864][   T73]      fib6_rule_lookup+0x456/0x630
[ 5099.741864][   T73]      ip6_route_input+0x59c/0xa50
[ 5099.741864][   T73]      ipv6_rcv+0x397/0x810
[ 5099.741864][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5099.741864][   T73]      process_backlog+0x101/0x620
[ 5099.741864][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5099.741864][   T73]      net_rx_action+0x495/0xbe0
[ 5099.741864][   T73]      __do_softirq+0x1b5/0x7f6
[ 5099.741864][   T73] 
[ 5099.743877][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5099.743877][   T73]      netdev_get_by_index+0x5e/0x80
[ 5099.743877][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5099.743877][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5099.743877][   T73]      ip6_route_add+0x1c/0x140
[ 5099.743877][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5099.743877][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5099.743877][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5099.743877][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5099.743877][   T73]      netlink_rcv_skb+0x130/0x360
[ 5099.743877][   T73]      netlink_unicast+0x449/0x710
[ 5099.743877][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5099.743877][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5099.743877][   T73]      ___sys_sendmsg+0xee/0x170
[ 5099.743877][   T73]      __sys_sendmsg+0xcd/0x170
[ 5099.743877][   T73]      do_syscall_64+0xc6/0x1e0
[ 5099.743877][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5099.743877][   T73] 
[ 5099.746331][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5099.746331][   T73]      netdev_get_by_index+0x5e/0x80
[ 5099.746331][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5099.746331][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5099.746331][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5099.746331][   T73]      ipv6_add_addr+0x411/0x2000
[ 5099.746331][   T73]      inet6_addr_add+0x30e/0xa40
[ 5099.746331][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5099.746331][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5099.746331][   T73]      netlink_rcv_skb+0x130/0x360
[ 5099.746331][   T73]      netlink_unicast+0x449/0x710
[ 5099.746331][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5099.746331][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5099.746331][   T73]      ___sys_sendmsg+0xee/0x170
[ 5099.746331][   T73]      __sys_sendmsg+0xcd/0x170
[ 5099.746331][   T73]      do_syscall_64+0xc6/0x1e0
[ 5099.746331][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5099.746331][   T73] 
[ 5099.748784][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5099.748784][   T73]      netdev_get_by_index+0x5e/0x80
[ 5099.748784][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5099.748784][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5099.748784][   T73]      ip6_route_add+0x1c/0x140
[ 5099.748784][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5099.748784][   T73]      addrconf_add_dev+0xe2/0x170
[ 5099.748784][   T73]      inet6_addr_add+0x12f/0xa40
[ 5099.748784][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5099.748784][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5099.748784][   T73]      netlink_rcv_skb+0x130/0x360
[ 5099.748784][   T73]      netlink_unicast+0x449/0x710
[ 5099.748784][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5099.748784][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5099.748784][   T73]      ___sys_sendmsg+0xee/0x170
[ 5099.748784][   T73]      __sys_sendmsg+0xcd/0x170
[ 5099.748784][   T73]      do_syscall_64+0xc6/0x1e0
[ 5099.748784][   T73] 
[ 5099.751239][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5099.751239][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5099.751239][   T73]      ipv6_find_idev+0x102/0x170
[ 5099.751239][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5099.751239][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5099.751239][   T73]      netlink_rcv_skb+0x130/0x360
[ 5099.751239][   T73]      netlink_unicast+0x449/0x710
[ 5099.751239][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5099.751239][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5099.751239][   T73]      ___sys_sendmsg+0xee/0x170
[ 5099.751239][   T73]      __sys_sendmsg+0xcd/0x170
[ 5099.751239][   T73]      do_syscall_64+0xc6/0x1e0
[ 5099.751239][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5099.751239][   T73] 
[ 5099.753198][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5099.753198][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5099.753198][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5099.753198][   T73]      ipv6_find_idev+0x102/0x170
[ 5099.753198][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5099.753198][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5099.753198][   T73]      netlink_rcv_skb+0x130/0x360
[ 5099.753198][   T73]      netlink_unicast+0x449/0x710
[ 5099.753198][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5099.753198][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5099.753198][   T73]      ___sys_sendmsg+0xee/0x170
[ 5099.753198][   T73]      __sys_sendmsg+0xcd/0x170
[ 5099.753198][   T73]      do_syscall_64+0xc6/0x1e0
[ 5099.753198][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5099.753198][   T73] 
[ 5099.755666][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5099.755963][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5099.755963][   T73]      netdev_get_by_index+0x5e/0x80
[ 5099.755963][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5099.755963][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5099.755963][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5099.755963][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5099.755963][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5099.755963][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5099.755963][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5099.755963][   T73]      addrconf_dad_begin+0x310/0x670
[ 5099.755963][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5099.755963][   T73]      process_one_work+0x84d/0x18a0
[ 5099.755963][   T73]      worker_thread+0x587/0xd30
[ 5099.755963][   T73]      kthread+0x28a/0x350
[ 5099.755963][   T73]      ret_from_fork+0x31/0x70
[ 5099.755963][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5099.755963][   T73] 
[ 5099.758127][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5099.758127][   T73]      netdev_get_by_index+0x5e/0x80
[ 5099.758127][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5099.758127][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5099.758127][   T73]      ip6_route_add+0x1c/0x140
[ 5099.758127][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5099.758127][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5099.758127][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5099.758127][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5099.758127][   T73]      netlink_rcv_skb+0x130/0x360
[ 5099.758127][   T73]      netlink_unicast+0x449/0x710
[ 5099.758127][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5099.758127][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5099.758127][   T73]      ___sys_sendmsg+0xee/0x170
[ 5099.758127][   T73]      __sys_sendmsg+0xcd/0x170
[ 5099.758127][   T73]      do_syscall_64+0xc6/0x1e0
[ 5099.758127][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5099.758127][   T73] 
[ 5099.760491][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5099.760491][   T73]      netdev_get_by_index+0x5e/0x80
[ 5099.760491][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5099.760491][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5099.760491][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5099.760491][   T73]      ipv6_add_addr+0x411/0x2000
[ 5099.760491][   T73]      inet6_addr_add+0x30e/0xa40
[ 5099.760491][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5099.760491][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5099.760491][   T73]      netlink_rcv_skb+0x130/0x360
[ 5099.760491][   T73]      netlink_unicast+0x449/0x710
[ 5099.760491][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5099.760491][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5099.760491][   T73]      ___sys_sendmsg+0xee/0x170
[ 5099.760491][   T73]      __sys_sendmsg+0xcd/0x170
[ 5099.760491][   T73]      do_syscall_64+0xc6/0x1e0
[ 5099.760491][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5099.760491][   T73] 
[ 5099.762988][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5099.762988][   T73]      netdev_get_by_index+0x5e/0x80
[ 5099.762988][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5099.762988][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5099.762988][   T73]      ip6_route_add+0x1c/0x140
[ 5099.762988][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5099.762988][   T73]      addrconf_add_dev+0xe2/0x170
[ 5099.762988][   T73]      inet6_addr_add+0x12f/0xa40
[ 5099.762988][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5099.762988][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5099.762988][   T73]      netlink_rcv_skb+0x130/0x360
[ 5099.762988][   T73]      netlink_unicast+0x449/0x710
[ 5099.762988][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5099.762988][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5099.762988][   T73]      ___sys_sendmsg+0xee/0x170
[ 5099.762988][   T73]      __sys_sendmsg+0xcd/0x170
[ 5099.762988][   T73]      do_syscall_64+0xc6/0x1e0
[ 5099.762988][   T73] 
[ 5099.765445][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5099.765445][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5099.765445][   T73]      ipv6_find_idev+0x102/0x170
[ 5099.765445][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5099.765445][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5099.765445][   T73]      netlink_rcv_skb+0x130/0x360
[ 5099.765445][   T73]      netlink_unicast+0x449/0x710
[ 5099.765445][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5099.765445][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5099.765445][   T73]      ___sys_sendmsg+0xee/0x170
[ 5099.765445][   T73]      __sys_sendmsg+0xcd/0x170
[ 5099.765445][   T73]      do_syscall_64+0xc6/0x1e0
[ 5099.765445][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5099.765445][   T73] 
[ 5099.767419][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5099.767419][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5099.767419][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5099.767419][   T73]      ipv6_find_idev+0x102/0x170
[ 5099.767419][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5099.767419][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5099.767419][   T73]      netlink_rcv_skb+0x130/0x360
[ 5099.767419][   T73]      netlink_unicast+0x449/0x710
[ 5099.767419][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5099.767419][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5099.767419][   T73]      ___sys_sendmsg+0xee/0x170
[ 5099.767419][   T73]      __sys_sendmsg+0xcd/0x170
[ 5099.767419][   T73]      do_syscall_64+0xc6/0x1e0
[ 5099.767419][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5099.767419][   T73] 
[ 5110.015764][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5110.016293][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5110.016293][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5110.016293][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5110.016293][   T73]      fib6_nh_init+0xa22/0x1580
[ 5110.016293][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5110.016293][   T73]      ip6_route_add+0x1c/0x140
[ 5110.016293][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5110.016293][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5110.016293][   T73]      netlink_rcv_skb+0x130/0x360
[ 5110.016293][   T73]      netlink_unicast+0x449/0x710
[ 5110.016293][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5110.016293][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5110.016293][   T73]      ___sys_sendmsg+0xee/0x170
[ 5110.016293][   T73]      __sys_sendmsg+0xcd/0x170
[ 5110.016293][   T73]      do_syscall_64+0xc6/0x1e0
[ 5110.016293][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5110.016293][   T73] 
[ 5110.018379][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5110.018379][   T73]      dst_init+0x84/0x4a0
[ 5110.018379][   T73]      dst_alloc+0x97/0x150
[ 5110.018379][   T73]      ip6_dst_alloc+0x23/0x90
[ 5110.018379][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5110.018379][   T73]      ip6_pol_route+0x56f/0x840
[ 5110.018379][   T73]      fib6_rule_lookup+0x456/0x630
[ 5110.018379][   T73]      ip6_route_input+0x59c/0xa50
[ 5110.018379][   T73]      ipv6_rcv+0x397/0x810
[ 5110.018379][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5110.018379][   T73]      process_backlog+0x101/0x620
[ 5110.018379][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5110.018379][   T73]      net_rx_action+0x495/0xbe0
[ 5110.018379][   T73]      __do_softirq+0x1b5/0x7f6
[ 5110.018379][   T73] 
[ 5110.020196][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5110.020196][   T73]      netdev_get_by_index+0x5e/0x80
[ 5110.020196][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5110.020196][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5110.020196][   T73]      ip6_route_add+0x1c/0x140
[ 5110.020196][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5110.020196][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5110.020196][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5110.020196][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5110.020196][   T73]      netlink_rcv_skb+0x130/0x360
[ 5110.020196][   T73]      netlink_unicast+0x449/0x710
[ 5110.020196][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5110.020196][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5110.020196][   T73]      ___sys_sendmsg+0xee/0x170
[ 5110.020196][   T73]      __sys_sendmsg+0xcd/0x170
[ 5110.020196][   T73]      do_syscall_64+0xc6/0x1e0
[ 5110.020196][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5110.020196][   T73] 
[ 5110.022434][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5110.022434][   T73]      netdev_get_by_index+0x5e/0x80
[ 5110.022434][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5110.022434][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5110.022434][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5110.022434][   T73]      ipv6_add_addr+0x411/0x2000
[ 5110.022434][   T73]      inet6_addr_add+0x30e/0xa40
[ 5110.022434][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5110.022434][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5110.022434][   T73]      netlink_rcv_skb+0x130/0x360
[ 5110.022434][   T73]      netlink_unicast+0x449/0x710
[ 5110.022434][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5110.022434][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5110.022434][   T73]      ___sys_sendmsg+0xee/0x170
[ 5110.022434][   T73]      __sys_sendmsg+0xcd/0x170
[ 5110.022434][   T73]      do_syscall_64+0xc6/0x1e0
[ 5110.022434][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5110.022434][   T73] 
[ 5110.024685][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5110.024685][   T73]      netdev_get_by_index+0x5e/0x80
[ 5110.024685][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5110.024685][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5110.024685][   T73]      ip6_route_add+0x1c/0x140
[ 5110.024685][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5110.024685][   T73]      addrconf_add_dev+0xe2/0x170
[ 5110.024685][   T73]      inet6_addr_add+0x12f/0xa40
[ 5110.024685][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5110.024685][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5110.024685][   T73]      netlink_rcv_skb+0x130/0x360
[ 5110.024685][   T73]      netlink_unicast+0x449/0x710
[ 5110.024685][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5110.024685][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5110.024685][   T73]      ___sys_sendmsg+0xee/0x170
[ 5110.024685][   T73]      __sys_sendmsg+0xcd/0x170
[ 5110.024685][   T73]      do_syscall_64+0xc6/0x1e0
[ 5110.024685][   T73] 
[ 5110.026881][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5110.026881][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5110.026881][   T73]      ipv6_find_idev+0x102/0x170
[ 5110.026881][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5110.026881][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5110.026881][   T73]      netlink_rcv_skb+0x130/0x360
[ 5110.026881][   T73]      netlink_unicast+0x449/0x710
[ 5110.026881][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5110.026881][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5110.026881][   T73]      ___sys_sendmsg+0xee/0x170
[ 5110.026881][   T73]      __sys_sendmsg+0xcd/0x170
[ 5110.026881][   T73]      do_syscall_64+0xc6/0x1e0
[ 5110.026881][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5110.026881][   T73] 
[ 5110.028593][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5110.028593][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5110.028593][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5110.028593][   T73]      ipv6_find_idev+0x102/0x170
[ 5110.028593][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5110.028593][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5110.028593][   T73]      netlink_rcv_skb+0x130/0x360
[ 5110.028593][   T73]      netlink_unicast+0x449/0x710
[ 5110.028593][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5110.028593][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5110.028593][   T73]      ___sys_sendmsg+0xee/0x170
[ 5110.028593][   T73]      __sys_sendmsg+0xcd/0x170
[ 5110.028593][   T73]      do_syscall_64+0xc6/0x1e0
[ 5110.028593][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5110.028593][   T73] 
[ 5110.030488][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5110.030819][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5110.030819][   T73]      netdev_get_by_index+0x5e/0x80
[ 5110.030819][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5110.030819][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5110.030819][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5110.030819][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5110.030819][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5110.030819][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5110.030819][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5110.030819][   T73]      addrconf_dad_begin+0x310/0x670
[ 5110.030819][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5110.030819][   T73]      process_one_work+0x84d/0x18a0
[ 5110.030819][   T73]      worker_thread+0x587/0xd30
[ 5110.030819][   T73]      kthread+0x28a/0x350
[ 5110.030819][   T73]      ret_from_fork+0x31/0x70
[ 5110.030819][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5110.030819][   T73] 
[ 5110.032950][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5110.032950][   T73]      netdev_get_by_index+0x5e/0x80
[ 5110.032950][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5110.032950][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5110.032950][   T73]      ip6_route_add+0x1c/0x140
[ 5110.032950][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5110.032950][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5110.032950][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5110.032950][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5110.032950][   T73]      netlink_rcv_skb+0x130/0x360
[ 5110.032950][   T73]      netlink_unicast+0x449/0x710
[ 5110.032950][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5110.032950][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5110.032950][   T73]      ___sys_sendmsg+0xee/0x170
[ 5110.032950][   T73]      __sys_sendmsg+0xcd/0x170
[ 5110.032950][   T73]      do_syscall_64+0xc6/0x1e0
[ 5110.032950][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5110.032950][   T73] 
[ 5110.035232][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5110.035232][   T73]      netdev_get_by_index+0x5e/0x80
[ 5110.035232][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5110.035232][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5110.035232][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5110.035232][   T73]      ipv6_add_addr+0x411/0x2000
[ 5110.035232][   T73]      inet6_addr_add+0x30e/0xa40
[ 5110.035232][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5110.035232][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5110.035232][   T73]      netlink_rcv_skb+0x130/0x360
[ 5110.035232][   T73]      netlink_unicast+0x449/0x710
[ 5110.035232][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5110.035232][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5110.035232][   T73]      ___sys_sendmsg+0xee/0x170
[ 5110.035232][   T73]      __sys_sendmsg+0xcd/0x170
[ 5110.035232][   T73]      do_syscall_64+0xc6/0x1e0
[ 5110.035232][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5110.035232][   T73] 
[ 5110.037472][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5110.037472][   T73]      netdev_get_by_index+0x5e/0x80
[ 5110.037472][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5110.037472][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5110.037472][   T73]      ip6_route_add+0x1c/0x140
[ 5110.037472][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5110.037472][   T73]      addrconf_add_dev+0xe2/0x170
[ 5110.037472][   T73]      inet6_addr_add+0x12f/0xa40
[ 5110.037472][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5110.037472][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5110.037472][   T73]      netlink_rcv_skb+0x130/0x360
[ 5110.037472][   T73]      netlink_unicast+0x449/0x710
[ 5110.037472][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5110.037472][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5110.037472][   T73]      ___sys_sendmsg+0xee/0x170
[ 5110.037472][   T73]      __sys_sendmsg+0xcd/0x170
[ 5110.037472][   T73]      do_syscall_64+0xc6/0x1e0
[ 5110.037472][   T73] 
[ 5110.039686][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5110.039686][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5110.039686][   T73]      ipv6_find_idev+0x102/0x170
[ 5110.039686][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5110.039686][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5110.039686][   T73]      netlink_rcv_skb+0x130/0x360
[ 5110.039686][   T73]      netlink_unicast+0x449/0x710
[ 5110.039686][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5110.039686][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5110.039686][   T73]      ___sys_sendmsg+0xee/0x170
[ 5110.039686][   T73]      __sys_sendmsg+0xcd/0x170
[ 5110.039686][   T73]      do_syscall_64+0xc6/0x1e0
[ 5110.039686][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5110.039686][   T73] 
[ 5110.041453][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5110.041453][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5110.041453][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5110.041453][   T73]      ipv6_find_idev+0x102/0x170
[ 5110.041453][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5110.041453][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5110.041453][   T73]      netlink_rcv_skb+0x130/0x360
[ 5110.041453][   T73]      netlink_unicast+0x449/0x710
[ 5110.041453][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5110.041453][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5110.041453][   T73]      ___sys_sendmsg+0xee/0x170
[ 5110.041453][   T73]      __sys_sendmsg+0xcd/0x170
[ 5110.041453][   T73]      do_syscall_64+0xc6/0x1e0
[ 5110.041453][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5110.041453][   T73] 
[ 5110.043355][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5110.043674][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5110.043674][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5110.043674][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5110.043674][   T73]      fib6_nh_init+0xa22/0x1580
[ 5110.043674][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5110.043674][   T73]      ip6_route_add+0x1c/0x140
[ 5110.043674][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5110.043674][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5110.043674][   T73]      netlink_rcv_skb+0x130/0x360
[ 5110.043674][   T73]      netlink_unicast+0x449/0x710
[ 5110.043674][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5110.043674][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5110.043674][   T73]      ___sys_sendmsg+0xee/0x170
[ 5110.043674][   T73]      __sys_sendmsg+0xcd/0x170
[ 5110.043674][   T73]      do_syscall_64+0xc6/0x1e0
[ 5110.043674][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5110.043674][   T73] 
[ 5110.045970][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5110.045970][   T73]      dst_init+0x84/0x4a0
[ 5110.045970][   T73]      dst_alloc+0x97/0x150
[ 5110.045970][   T73]      ip6_dst_alloc+0x23/0x90
[ 5110.045970][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5110.045970][   T73]      ip6_pol_route+0x56f/0x840
[ 5110.045970][   T73]      fib6_rule_lookup+0x456/0x630
[ 5110.045970][   T73]      ip6_route_input+0x59c/0xa50
[ 5110.045970][   T73]      ipv6_rcv+0x397/0x810
[ 5110.045970][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5110.045970][   T73]      process_backlog+0x101/0x620
[ 5110.045970][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5110.045970][   T73]      net_rx_action+0x495/0xbe0
[ 5110.045970][   T73]      __do_softirq+0x1b5/0x7f6
[ 5110.045970][   T73] 
[ 5110.047990][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5110.047990][   T73]      netdev_get_by_index+0x5e/0x80
[ 5110.047990][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5110.047990][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5110.047990][   T73]      ip6_route_add+0x1c/0x140
[ 5110.047990][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5110.047990][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5110.047990][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5110.047990][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5110.047990][   T73]      netlink_rcv_skb+0x130/0x360
[ 5110.047990][   T73]      netlink_unicast+0x449/0x710
[ 5110.047990][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5110.047990][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5110.047990][   T73]      ___sys_sendmsg+0xee/0x170
[ 5110.047990][   T73]      __sys_sendmsg+0xcd/0x170
[ 5110.047990][   T73]      do_syscall_64+0xc6/0x1e0
[ 5110.047990][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5110.047990][   T73] 
[ 5110.050508][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5110.050508][   T73]      netdev_get_by_index+0x5e/0x80
[ 5110.050508][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5110.050508][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5110.050508][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5110.050508][   T73]      ipv6_add_addr+0x411/0x2000
[ 5110.050508][   T73]      inet6_addr_add+0x30e/0xa40
[ 5110.050508][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5110.050508][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5110.050508][   T73]      netlink_rcv_skb+0x130/0x360
[ 5110.050508][   T73]      netlink_unicast+0x449/0x710
[ 5110.050508][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5110.050508][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5110.050508][   T73]      ___sys_sendmsg+0xee/0x170
[ 5110.050508][   T73]      __sys_sendmsg+0xcd/0x170
[ 5110.050508][   T73]      do_syscall_64+0xc6/0x1e0
[ 5110.050508][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5110.050508][   T73] 
[ 5110.052945][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5110.052945][   T73]      netdev_get_by_index+0x5e/0x80
[ 5110.052945][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5110.052945][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5110.052945][   T73]      ip6_route_add+0x1c/0x140
[ 5110.052945][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5110.052945][   T73]      addrconf_add_dev+0xe2/0x170
[ 5110.052945][   T73]      inet6_addr_add+0x12f/0xa40
[ 5110.052945][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5110.052945][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5110.052945][   T73]      netlink_rcv_skb+0x130/0x360
[ 5110.052945][   T73]      netlink_unicast+0x449/0x710
[ 5110.052945][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5110.052945][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5110.052945][   T73]      ___sys_sendmsg+0xee/0x170
[ 5110.052945][   T73]      __sys_sendmsg+0xcd/0x170
[ 5110.052945][   T73]      do_syscall_64+0xc6/0x1e0
[ 5110.052945][   T73] 
[ 5110.055474][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5110.055474][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5110.055474][   T73]      ipv6_find_idev+0x102/0x170
[ 5110.055474][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5110.055474][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5110.055474][   T73]      netlink_rcv_skb+0x130/0x360
[ 5110.055474][   T73]      netlink_unicast+0x449/0x710
[ 5110.055474][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5110.055474][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5110.055474][   T73]      ___sys_sendmsg+0xee/0x170
[ 5110.055474][   T73]      __sys_sendmsg+0xcd/0x170
[ 5110.055474][   T73]      do_syscall_64+0xc6/0x1e0
[ 5110.055474][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5110.055474][   T73] 
[ 5110.057391][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5110.057391][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5110.057391][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5110.057391][   T73]      ipv6_find_idev+0x102/0x170
[ 5110.057391][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5110.057391][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5110.057391][   T73]      netlink_rcv_skb+0x130/0x360
[ 5110.057391][   T73]      netlink_unicast+0x449/0x710
[ 5110.057391][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5110.057391][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5110.057391][   T73]      ___sys_sendmsg+0xee/0x170
[ 5110.057391][   T73]      __sys_sendmsg+0xcd/0x170
[ 5110.057391][   T73]      do_syscall_64+0xc6/0x1e0
[ 5110.057391][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5110.057391][   T73] 
[ 5110.059832][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5110.060132][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5110.060132][   T73]      netdev_get_by_index+0x5e/0x80
[ 5110.060132][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5110.060132][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5110.060132][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5110.060132][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5110.060132][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5110.060132][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5110.060132][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5110.060132][   T73]      addrconf_dad_begin+0x310/0x670
[ 5110.060132][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5110.060132][   T73]      process_one_work+0x84d/0x18a0
[ 5110.060132][   T73]      worker_thread+0x587/0xd30
[ 5110.060132][   T73]      kthread+0x28a/0x350
[ 5110.060132][   T73]      ret_from_fork+0x31/0x70
[ 5110.060132][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5110.060132][   T73] 
[ 5110.062274][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5110.062274][   T73]      netdev_get_by_index+0x5e/0x80
[ 5110.062274][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5110.062274][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5110.062274][   T73]      ip6_route_add+0x1c/0x140
[ 5110.062274][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5110.062274][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5110.062274][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5110.062274][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5110.062274][   T73]      netlink_rcv_skb+0x130/0x360
[ 5110.062274][   T73]      netlink_unicast+0x449/0x710
[ 5110.062274][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5110.062274][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5110.062274][   T73]      ___sys_sendmsg+0xee/0x170
[ 5110.062274][   T73]      __sys_sendmsg+0xcd/0x170
[ 5110.062274][   T73]      do_syscall_64+0xc6/0x1e0
[ 5110.062274][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5110.062274][   T73] 
[ 5110.064620][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5110.064620][   T73]      netdev_get_by_index+0x5e/0x80
[ 5110.064620][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5110.064620][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5110.064620][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5110.064620][   T73]      ipv6_add_addr+0x411/0x2000
[ 5110.064620][   T73]      inet6_addr_add+0x30e/0xa40
[ 5110.064620][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5110.064620][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5110.064620][   T73]      netlink_rcv_skb+0x130/0x360
[ 5110.064620][   T73]      netlink_unicast+0x449/0x710
[ 5110.064620][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5110.064620][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5110.064620][   T73]      ___sys_sendmsg+0xee/0x170
[ 5110.064620][   T73]      __sys_sendmsg+0xcd/0x170
[ 5110.064620][   T73]      do_syscall_64+0xc6/0x1e0
[ 5110.064620][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5110.064620][   T73] 
[ 5110.067106][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5110.067106][   T73]      netdev_get_by_index+0x5e/0x80
[ 5110.067106][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5110.067106][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5110.067106][   T73]      ip6_route_add+0x1c/0x140
[ 5110.067106][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5110.067106][   T73]      addrconf_add_dev+0xe2/0x170
[ 5110.067106][   T73]      inet6_addr_add+0x12f/0xa40
[ 5110.067106][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5110.067106][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5110.067106][   T73]      netlink_rcv_skb+0x130/0x360
[ 5110.067106][   T73]      netlink_unicast+0x449/0x710
[ 5110.067106][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5110.067106][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5110.067106][   T73]      ___sys_sendmsg+0xee/0x170
[ 5110.067106][   T73]      __sys_sendmsg+0xcd/0x170
[ 5110.067106][   T73]      do_syscall_64+0xc6/0x1e0
[ 5110.067106][   T73] 
[ 5110.070086][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5110.070086][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5110.070086][   T73]      ipv6_find_idev+0x102/0x170
[ 5110.070086][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5110.070086][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5110.070086][   T73]      netlink_rcv_skb+0x130/0x360
[ 5110.070086][   T73]      netlink_unicast+0x449/0x710
[ 5110.070086][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5110.070086][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5110.070086][   T73]      ___sys_sendmsg+0xee/0x170
[ 5110.070086][   T73]      __sys_sendmsg+0xcd/0x170
[ 5110.070086][   T73]      do_syscall_64+0xc6/0x1e0
[ 5110.070086][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5110.070086][   T73] 
[ 5110.072019][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5110.072019][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5110.072019][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5110.072019][   T73]      ipv6_find_idev+0x102/0x170
[ 5110.072019][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5110.072019][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5110.072019][   T73]      netlink_rcv_skb+0x130/0x360
[ 5110.072019][   T73]      netlink_unicast+0x449/0x710
[ 5110.072019][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5110.072019][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5110.072019][   T73]      ___sys_sendmsg+0xee/0x170
[ 5110.072019][   T73]      __sys_sendmsg+0xcd/0x170
[ 5110.072019][   T73]      do_syscall_64+0xc6/0x1e0
[ 5110.072019][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5110.072019][   T73] 
[ 5120.119768][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5120.120251][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5120.120251][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5120.120251][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5120.120251][   T73]      fib6_nh_init+0xa22/0x1580
[ 5120.120251][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5120.120251][   T73]      ip6_route_add+0x1c/0x140
[ 5120.120251][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5120.120251][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5120.120251][   T73]      netlink_rcv_skb+0x130/0x360
[ 5120.120251][   T73]      netlink_unicast+0x449/0x710
[ 5120.120251][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5120.120251][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5120.120251][   T73]      ___sys_sendmsg+0xee/0x170
[ 5120.120251][   T73]      __sys_sendmsg+0xcd/0x170
[ 5120.120251][   T73]      do_syscall_64+0xc6/0x1e0
[ 5120.120251][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5120.120251][   T73] 
[ 5120.122228][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5120.122228][   T73]      dst_init+0x84/0x4a0
[ 5120.122228][   T73]      dst_alloc+0x97/0x150
[ 5120.122228][   T73]      ip6_dst_alloc+0x23/0x90
[ 5120.122228][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5120.122228][   T73]      ip6_pol_route+0x56f/0x840
[ 5120.122228][   T73]      fib6_rule_lookup+0x456/0x630
[ 5120.122228][   T73]      ip6_route_input+0x59c/0xa50
[ 5120.122228][   T73]      ipv6_rcv+0x397/0x810
[ 5120.122228][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5120.122228][   T73]      process_backlog+0x101/0x620
[ 5120.122228][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5120.122228][   T73]      net_rx_action+0x495/0xbe0
[ 5120.122228][   T73]      __do_softirq+0x1b5/0x7f6
[ 5120.122228][   T73] 
[ 5120.126481][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5120.126481][   T73]      netdev_get_by_index+0x5e/0x80
[ 5120.126481][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5120.126481][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5120.126481][   T73]      ip6_route_add+0x1c/0x140
[ 5120.126481][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5120.126481][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5120.126481][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5120.126481][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5120.126481][   T73]      netlink_rcv_skb+0x130/0x360
[ 5120.126481][   T73]      netlink_unicast+0x449/0x710
[ 5120.126481][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5120.126481][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5120.126481][   T73]      ___sys_sendmsg+0xee/0x170
[ 5120.126481][   T73]      __sys_sendmsg+0xcd/0x170
[ 5120.126481][   T73]      do_syscall_64+0xc6/0x1e0
[ 5120.126481][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5120.126481][   T73] 
[ 5120.128517][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5120.128517][   T73]      netdev_get_by_index+0x5e/0x80
[ 5120.128517][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5120.128517][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5120.128517][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5120.128517][   T73]      ipv6_add_addr+0x411/0x2000
[ 5120.128517][   T73]      inet6_addr_add+0x30e/0xa40
[ 5120.128517][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5120.128517][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5120.128517][   T73]      netlink_rcv_skb+0x130/0x360
[ 5120.128517][   T73]      netlink_unicast+0x449/0x710
[ 5120.128517][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5120.128517][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5120.128517][   T73]      ___sys_sendmsg+0xee/0x170
[ 5120.128517][   T73]      __sys_sendmsg+0xcd/0x170
[ 5120.128517][   T73]      do_syscall_64+0xc6/0x1e0
[ 5120.128517][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5120.128517][   T73] 
[ 5120.130548][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5120.130548][   T73]      netdev_get_by_index+0x5e/0x80
[ 5120.130548][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5120.130548][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5120.130548][   T73]      ip6_route_add+0x1c/0x140
[ 5120.130548][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5120.130548][   T73]      addrconf_add_dev+0xe2/0x170
[ 5120.130548][   T73]      inet6_addr_add+0x12f/0xa40
[ 5120.130548][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5120.130548][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5120.130548][   T73]      netlink_rcv_skb+0x130/0x360
[ 5120.130548][   T73]      netlink_unicast+0x449/0x710
[ 5120.130548][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5120.130548][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5120.130548][   T73]      ___sys_sendmsg+0xee/0x170
[ 5120.130548][   T73]      __sys_sendmsg+0xcd/0x170
[ 5120.130548][   T73]      do_syscall_64+0xc6/0x1e0
[ 5120.130548][   T73] 
[ 5120.132542][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5120.132542][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5120.132542][   T73]      ipv6_find_idev+0x102/0x170
[ 5120.132542][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5120.132542][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5120.132542][   T73]      netlink_rcv_skb+0x130/0x360
[ 5120.132542][   T73]      netlink_unicast+0x449/0x710
[ 5120.132542][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5120.132542][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5120.132542][   T73]      ___sys_sendmsg+0xee/0x170
[ 5120.132542][   T73]      __sys_sendmsg+0xcd/0x170
[ 5120.132542][   T73]      do_syscall_64+0xc6/0x1e0
[ 5120.132542][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5120.132542][   T73] 
[ 5120.134108][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5120.134108][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5120.134108][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5120.134108][   T73]      ipv6_find_idev+0x102/0x170
[ 5120.134108][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5120.134108][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5120.134108][   T73]      netlink_rcv_skb+0x130/0x360
[ 5120.134108][   T73]      netlink_unicast+0x449/0x710
[ 5120.134108][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5120.134108][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5120.134108][   T73]      ___sys_sendmsg+0xee/0x170
[ 5120.134108][   T73]      __sys_sendmsg+0xcd/0x170
[ 5120.134108][   T73]      do_syscall_64+0xc6/0x1e0
[ 5120.134108][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5120.134108][   T73] 
[ 5120.135841][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5120.136145][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5120.136145][   T73]      netdev_get_by_index+0x5e/0x80
[ 5120.136145][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5120.136145][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5120.136145][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5120.136145][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5120.136145][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5120.136145][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5120.136145][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5120.136145][   T73]      addrconf_dad_begin+0x310/0x670
[ 5120.136145][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5120.136145][   T73]      process_one_work+0x84d/0x18a0
[ 5120.136145][   T73]      worker_thread+0x587/0xd30
[ 5120.136145][   T73]      kthread+0x28a/0x350
[ 5120.136145][   T73]      ret_from_fork+0x31/0x70
[ 5120.136145][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5120.136145][   T73] 
[ 5120.138083][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5120.138083][   T73]      netdev_get_by_index+0x5e/0x80
[ 5120.138083][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5120.138083][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5120.138083][   T73]      ip6_route_add+0x1c/0x140
[ 5120.138083][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5120.138083][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5120.138083][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5120.138083][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5120.138083][   T73]      netlink_rcv_skb+0x130/0x360
[ 5120.138083][   T73]      netlink_unicast+0x449/0x710
[ 5120.138083][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5120.138083][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5120.138083][   T73]      ___sys_sendmsg+0xee/0x170
[ 5120.138083][   T73]      __sys_sendmsg+0xcd/0x170
[ 5120.138083][   T73]      do_syscall_64+0xc6/0x1e0
[ 5120.138083][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5120.138083][   T73] 
[ 5120.140115][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5120.140115][   T73]      netdev_get_by_index+0x5e/0x80
[ 5120.140115][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5120.140115][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5120.140115][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5120.140115][   T73]      ipv6_add_addr+0x411/0x2000
[ 5120.140115][   T73]      inet6_addr_add+0x30e/0xa40
[ 5120.140115][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5120.140115][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5120.140115][   T73]      netlink_rcv_skb+0x130/0x360
[ 5120.140115][   T73]      netlink_unicast+0x449/0x710
[ 5120.140115][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5120.140115][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5120.140115][   T73]      ___sys_sendmsg+0xee/0x170
[ 5120.140115][   T73]      __sys_sendmsg+0xcd/0x170
[ 5120.140115][   T73]      do_syscall_64+0xc6/0x1e0
[ 5120.140115][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5120.140115][   T73] 
[ 5120.142163][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5120.142163][   T73]      netdev_get_by_index+0x5e/0x80
[ 5120.142163][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5120.142163][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5120.142163][   T73]      ip6_route_add+0x1c/0x140
[ 5120.142163][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5120.142163][   T73]      addrconf_add_dev+0xe2/0x170
[ 5120.142163][   T73]      inet6_addr_add+0x12f/0xa40
[ 5120.142163][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5120.142163][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5120.142163][   T73]      netlink_rcv_skb+0x130/0x360
[ 5120.142163][   T73]      netlink_unicast+0x449/0x710
[ 5120.142163][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5120.142163][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5120.142163][   T73]      ___sys_sendmsg+0xee/0x170
[ 5120.142163][   T73]      __sys_sendmsg+0xcd/0x170
[ 5120.142163][   T73]      do_syscall_64+0xc6/0x1e0
[ 5120.142163][   T73] 
[ 5120.144140][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5120.144140][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5120.144140][   T73]      ipv6_find_idev+0x102/0x170
[ 5120.144140][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5120.144140][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5120.144140][   T73]      netlink_rcv_skb+0x130/0x360
[ 5120.144140][   T73]      netlink_unicast+0x449/0x710
[ 5120.144140][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5120.144140][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5120.144140][   T73]      ___sys_sendmsg+0xee/0x170
[ 5120.144140][   T73]      __sys_sendmsg+0xcd/0x170
[ 5120.144140][   T73]      do_syscall_64+0xc6/0x1e0
[ 5120.144140][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5120.144140][   T73] 
[ 5120.145699][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5120.145699][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5120.145699][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5120.145699][   T73]      ipv6_find_idev+0x102/0x170
[ 5120.145699][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5120.145699][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5120.145699][   T73]      netlink_rcv_skb+0x130/0x360
[ 5120.145699][   T73]      netlink_unicast+0x449/0x710
[ 5120.145699][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5120.145699][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5120.145699][   T73]      ___sys_sendmsg+0xee/0x170
[ 5120.145699][   T73]      __sys_sendmsg+0xcd/0x170
[ 5120.145699][   T73]      do_syscall_64+0xc6/0x1e0
[ 5120.145699][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5120.145699][   T73] 
[ 5120.147396][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5120.147676][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5120.147676][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5120.147676][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5120.147676][   T73]      fib6_nh_init+0xa22/0x1580
[ 5120.147676][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5120.147676][   T73]      ip6_route_add+0x1c/0x140
[ 5120.147676][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5120.147676][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5120.147676][   T73]      netlink_rcv_skb+0x130/0x360
[ 5120.147676][   T73]      netlink_unicast+0x449/0x710
[ 5120.147676][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5120.147676][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5120.147676][   T73]      ___sys_sendmsg+0xee/0x170
[ 5120.147676][   T73]      __sys_sendmsg+0xcd/0x170
[ 5120.147676][   T73]      do_syscall_64+0xc6/0x1e0
[ 5120.147676][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5120.147676][   T73] 
[ 5120.149770][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5120.149770][   T73]      dst_init+0x84/0x4a0
[ 5120.149770][   T73]      dst_alloc+0x97/0x150
[ 5120.149770][   T73]      ip6_dst_alloc+0x23/0x90
[ 5120.149770][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5120.149770][   T73]      ip6_pol_route+0x56f/0x840
[ 5120.149770][   T73]      fib6_rule_lookup+0x456/0x630
[ 5120.149770][   T73]      ip6_route_input+0x59c/0xa50
[ 5120.149770][   T73]      ipv6_rcv+0x397/0x810
[ 5120.149770][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5120.149770][   T73]      process_backlog+0x101/0x620
[ 5120.149770][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5120.149770][   T73]      net_rx_action+0x495/0xbe0
[ 5120.149770][   T73]      __do_softirq+0x1b5/0x7f6
[ 5120.149770][   T73] 
[ 5120.151681][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5120.151681][   T73]      netdev_get_by_index+0x5e/0x80
[ 5120.151681][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5120.151681][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5120.151681][   T73]      ip6_route_add+0x1c/0x140
[ 5120.151681][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5120.151681][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5120.151681][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5120.151681][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5120.151681][   T73]      netlink_rcv_skb+0x130/0x360
[ 5120.151681][   T73]      netlink_unicast+0x449/0x710
[ 5120.151681][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5120.151681][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5120.151681][   T73]      ___sys_sendmsg+0xee/0x170
[ 5120.151681][   T73]      __sys_sendmsg+0xcd/0x170
[ 5120.151681][   T73]      do_syscall_64+0xc6/0x1e0
[ 5120.151681][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5120.151681][   T73] 
[ 5120.153951][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5120.153951][   T73]      netdev_get_by_index+0x5e/0x80
[ 5120.153951][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5120.153951][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5120.153951][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5120.153951][   T73]      ipv6_add_addr+0x411/0x2000
[ 5120.153951][   T73]      inet6_addr_add+0x30e/0xa40
[ 5120.153951][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5120.153951][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5120.153951][   T73]      netlink_rcv_skb+0x130/0x360
[ 5120.153951][   T73]      netlink_unicast+0x449/0x710
[ 5120.153951][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5120.153951][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5120.153951][   T73]      ___sys_sendmsg+0xee/0x170
[ 5120.153951][   T73]      __sys_sendmsg+0xcd/0x170
[ 5120.153951][   T73]      do_syscall_64+0xc6/0x1e0
[ 5120.153951][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5120.153951][   T73] 
[ 5120.156218][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5120.156218][   T73]      netdev_get_by_index+0x5e/0x80
[ 5120.156218][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5120.156218][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5120.156218][   T73]      ip6_route_add+0x1c/0x140
[ 5120.156218][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5120.156218][   T73]      addrconf_add_dev+0xe2/0x170
[ 5120.156218][   T73]      inet6_addr_add+0x12f/0xa40
[ 5120.156218][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5120.156218][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5120.156218][   T73]      netlink_rcv_skb+0x130/0x360
[ 5120.156218][   T73]      netlink_unicast+0x449/0x710
[ 5120.156218][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5120.156218][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5120.156218][   T73]      ___sys_sendmsg+0xee/0x170
[ 5120.156218][   T73]      __sys_sendmsg+0xcd/0x170
[ 5120.156218][   T73]      do_syscall_64+0xc6/0x1e0
[ 5120.156218][   T73] 
[ 5120.158449][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5120.158449][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5120.158449][   T73]      ipv6_find_idev+0x102/0x170
[ 5120.158449][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5120.158449][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5120.158449][   T73]      netlink_rcv_skb+0x130/0x360
[ 5120.158449][   T73]      netlink_unicast+0x449/0x710
[ 5120.158449][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5120.158449][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5120.158449][   T73]      ___sys_sendmsg+0xee/0x170
[ 5120.158449][   T73]      __sys_sendmsg+0xcd/0x170
[ 5120.158449][   T73]      do_syscall_64+0xc6/0x1e0
[ 5120.158449][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5120.158449][   T73] 
[ 5120.160261][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5120.160261][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5120.160261][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5120.160261][   T73]      ipv6_find_idev+0x102/0x170
[ 5120.160261][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5120.160261][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5120.160261][   T73]      netlink_rcv_skb+0x130/0x360
[ 5120.160261][   T73]      netlink_unicast+0x449/0x710
[ 5120.160261][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5120.160261][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5120.160261][   T73]      ___sys_sendmsg+0xee/0x170
[ 5120.160261][   T73]      __sys_sendmsg+0xcd/0x170
[ 5120.160261][   T73]      do_syscall_64+0xc6/0x1e0
[ 5120.160261][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5120.160261][   T73] 
[ 5120.162163][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5120.162433][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5120.162433][   T73]      netdev_get_by_index+0x5e/0x80
[ 5120.162433][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5120.162433][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5120.162433][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5120.162433][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5120.162433][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5120.162433][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5120.162433][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5120.162433][   T73]      addrconf_dad_begin+0x310/0x670
[ 5120.162433][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5120.162433][   T73]      process_one_work+0x84d/0x18a0
[ 5120.162433][   T73]      worker_thread+0x587/0xd30
[ 5120.162433][   T73]      kthread+0x28a/0x350
[ 5120.162433][   T73]      ret_from_fork+0x31/0x70
[ 5120.162433][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5120.162433][   T73] 
[ 5120.164620][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5120.164620][   T73]      netdev_get_by_index+0x5e/0x80
[ 5120.164620][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5120.164620][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5120.164620][   T73]      ip6_route_add+0x1c/0x140
[ 5120.164620][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5120.164620][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5120.164620][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5120.164620][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5120.164620][   T73]      netlink_rcv_skb+0x130/0x360
[ 5120.164620][   T73]      netlink_unicast+0x449/0x710
[ 5120.164620][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5120.164620][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5120.164620][   T73]      ___sys_sendmsg+0xee/0x170
[ 5120.164620][   T73]      __sys_sendmsg+0xcd/0x170
[ 5120.164620][   T73]      do_syscall_64+0xc6/0x1e0
[ 5120.164620][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5120.164620][   T73] 
[ 5120.166900][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5120.166900][   T73]      netdev_get_by_index+0x5e/0x80
[ 5120.166900][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5120.166900][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5120.166900][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5120.166900][   T73]      ipv6_add_addr+0x411/0x2000
[ 5120.166900][   T73]      inet6_addr_add+0x30e/0xa40
[ 5120.166900][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5120.166900][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5120.166900][   T73]      netlink_rcv_skb+0x130/0x360
[ 5120.166900][   T73]      netlink_unicast+0x449/0x710
[ 5120.166900][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5120.166900][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5120.166900][   T73]      ___sys_sendmsg+0xee/0x170
[ 5120.166900][   T73]      __sys_sendmsg+0xcd/0x170
[ 5120.166900][   T73]      do_syscall_64+0xc6/0x1e0
[ 5120.166900][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5120.166900][   T73] 
[ 5120.169228][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5120.169228][   T73]      netdev_get_by_index+0x5e/0x80
[ 5120.169228][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5120.169228][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5120.169228][   T73]      ip6_route_add+0x1c/0x140
[ 5120.169228][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5120.169228][   T73]      addrconf_add_dev+0xe2/0x170
[ 5120.169228][   T73]      inet6_addr_add+0x12f/0xa40
[ 5120.169228][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5120.169228][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5120.169228][   T73]      netlink_rcv_skb+0x130/0x360
[ 5120.169228][   T73]      netlink_unicast+0x449/0x710
[ 5120.169228][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5120.169228][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5120.169228][   T73]      ___sys_sendmsg+0xee/0x170
[ 5120.169228][   T73]      __sys_sendmsg+0xcd/0x170
[ 5120.169228][   T73]      do_syscall_64+0xc6/0x1e0
[ 5120.169228][   T73] 
[ 5120.171407][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5120.171407][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5120.171407][   T73]      ipv6_find_idev+0x102/0x170
[ 5120.171407][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5120.171407][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5120.171407][   T73]      netlink_rcv_skb+0x130/0x360
[ 5120.171407][   T73]      netlink_unicast+0x449/0x710
[ 5120.171407][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5120.171407][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5120.171407][   T73]      ___sys_sendmsg+0xee/0x170
[ 5120.171407][   T73]      __sys_sendmsg+0xcd/0x170
[ 5120.171407][   T73]      do_syscall_64+0xc6/0x1e0
[ 5120.171407][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5120.171407][   T73] 
[ 5120.173151][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5120.173151][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5120.173151][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5120.173151][   T73]      ipv6_find_idev+0x102/0x170
[ 5120.173151][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5120.173151][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5120.173151][   T73]      netlink_rcv_skb+0x130/0x360
[ 5120.173151][   T73]      netlink_unicast+0x449/0x710
[ 5120.173151][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5120.173151][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5120.173151][   T73]      ___sys_sendmsg+0xee/0x170
[ 5120.173151][   T73]      __sys_sendmsg+0xcd/0x170
[ 5120.173151][   T73]      do_syscall_64+0xc6/0x1e0
[ 5120.173151][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5120.173151][   T73] 
[ 5130.263750][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5130.264208][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5130.264208][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5130.264208][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5130.264208][   T73]      fib6_nh_init+0xa22/0x1580
[ 5130.264208][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5130.264208][   T73]      ip6_route_add+0x1c/0x140
[ 5130.264208][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5130.264208][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5130.264208][   T73]      netlink_rcv_skb+0x130/0x360
[ 5130.264208][   T73]      netlink_unicast+0x449/0x710
[ 5130.264208][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5130.264208][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5130.264208][   T73]      ___sys_sendmsg+0xee/0x170
[ 5130.264208][   T73]      __sys_sendmsg+0xcd/0x170
[ 5130.264208][   T73]      do_syscall_64+0xc6/0x1e0
[ 5130.264208][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5130.264208][   T73] 
[ 5130.266163][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5130.266163][   T73]      dst_init+0x84/0x4a0
[ 5130.266163][   T73]      dst_alloc+0x97/0x150
[ 5130.266163][   T73]      ip6_dst_alloc+0x23/0x90
[ 5130.266163][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5130.266163][   T73]      ip6_pol_route+0x56f/0x840
[ 5130.266163][   T73]      fib6_rule_lookup+0x456/0x630
[ 5130.266163][   T73]      ip6_route_input+0x59c/0xa50
[ 5130.266163][   T73]      ipv6_rcv+0x397/0x810
[ 5130.266163][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5130.266163][   T73]      process_backlog+0x101/0x620
[ 5130.266163][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5130.266163][   T73]      net_rx_action+0x495/0xbe0
[ 5130.266163][   T73]      __do_softirq+0x1b5/0x7f6
[ 5130.266163][   T73] 
[ 5130.342392][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5130.342392][   T73]      netdev_get_by_index+0x5e/0x80
[ 5130.342392][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5130.342392][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5130.342392][   T73]      ip6_route_add+0x1c/0x140
[ 5130.342392][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5130.342392][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5130.342392][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5130.342392][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5130.342392][   T73]      netlink_rcv_skb+0x130/0x360
[ 5130.342392][   T73]      netlink_unicast+0x449/0x710
[ 5130.342392][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5130.342392][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5130.342392][   T73]      ___sys_sendmsg+0xee/0x170
[ 5130.342392][   T73]      __sys_sendmsg+0xcd/0x170
[ 5130.342392][   T73]      do_syscall_64+0xc6/0x1e0
[ 5130.342392][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5130.342392][   T73] 
[ 5130.344424][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5130.344424][   T73]      netdev_get_by_index+0x5e/0x80
[ 5130.344424][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5130.344424][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5130.344424][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5130.344424][   T73]      ipv6_add_addr+0x411/0x2000
[ 5130.344424][   T73]      inet6_addr_add+0x30e/0xa40
[ 5130.344424][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5130.344424][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5130.344424][   T73]      netlink_rcv_skb+0x130/0x360
[ 5130.344424][   T73]      netlink_unicast+0x449/0x710
[ 5130.344424][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5130.344424][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5130.344424][   T73]      ___sys_sendmsg+0xee/0x170
[ 5130.344424][   T73]      __sys_sendmsg+0xcd/0x170
[ 5130.344424][   T73]      do_syscall_64+0xc6/0x1e0
[ 5130.344424][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5130.344424][   T73] 
[ 5130.346468][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5130.346468][   T73]      netdev_get_by_index+0x5e/0x80
[ 5130.346468][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5130.346468][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5130.346468][   T73]      ip6_route_add+0x1c/0x140
[ 5130.346468][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5130.346468][   T73]      addrconf_add_dev+0xe2/0x170
[ 5130.346468][   T73]      inet6_addr_add+0x12f/0xa40
[ 5130.346468][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5130.346468][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5130.346468][   T73]      netlink_rcv_skb+0x130/0x360
[ 5130.346468][   T73]      netlink_unicast+0x449/0x710
[ 5130.346468][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5130.346468][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5130.346468][   T73]      ___sys_sendmsg+0xee/0x170
[ 5130.346468][   T73]      __sys_sendmsg+0xcd/0x170
[ 5130.346468][   T73]      do_syscall_64+0xc6/0x1e0
[ 5130.346468][   T73] 
[ 5130.348469][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5130.348469][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5130.348469][   T73]      ipv6_find_idev+0x102/0x170
[ 5130.348469][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5130.348469][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5130.348469][   T73]      netlink_rcv_skb+0x130/0x360
[ 5130.348469][   T73]      netlink_unicast+0x449/0x710
[ 5130.348469][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5130.348469][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5130.348469][   T73]      ___sys_sendmsg+0xee/0x170
[ 5130.348469][   T73]      __sys_sendmsg+0xcd/0x170
[ 5130.348469][   T73]      do_syscall_64+0xc6/0x1e0
[ 5130.348469][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5130.348469][   T73] 
[ 5130.350040][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5130.350040][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5130.350040][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5130.350040][   T73]      ipv6_find_idev+0x102/0x170
[ 5130.350040][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5130.350040][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5130.350040][   T73]      netlink_rcv_skb+0x130/0x360
[ 5130.350040][   T73]      netlink_unicast+0x449/0x710
[ 5130.350040][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5130.350040][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5130.350040][   T73]      ___sys_sendmsg+0xee/0x170
[ 5130.350040][   T73]      __sys_sendmsg+0xcd/0x170
[ 5130.350040][   T73]      do_syscall_64+0xc6/0x1e0
[ 5130.350040][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5130.350040][   T73] 
[ 5130.351791][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5130.352075][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5130.352075][   T73]      netdev_get_by_index+0x5e/0x80
[ 5130.352075][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5130.352075][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5130.352075][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5130.352075][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5130.352075][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5130.352075][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5130.352075][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5130.352075][   T73]      addrconf_dad_begin+0x310/0x670
[ 5130.352075][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5130.352075][   T73]      process_one_work+0x84d/0x18a0
[ 5130.352075][   T73]      worker_thread+0x587/0xd30
[ 5130.352075][   T73]      kthread+0x28a/0x350
[ 5130.352075][   T73]      ret_from_fork+0x31/0x70
[ 5130.352075][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5130.352075][   T73] 
[ 5130.354030][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5130.354030][   T73]      netdev_get_by_index+0x5e/0x80
[ 5130.354030][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5130.354030][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5130.354030][   T73]      ip6_route_add+0x1c/0x140
[ 5130.354030][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5130.354030][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5130.354030][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5130.354030][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5130.354030][   T73]      netlink_rcv_skb+0x130/0x360
[ 5130.354030][   T73]      netlink_unicast+0x449/0x710
[ 5130.354030][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5130.354030][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5130.354030][   T73]      ___sys_sendmsg+0xee/0x170
[ 5130.354030][   T73]      __sys_sendmsg+0xcd/0x170
[ 5130.354030][   T73]      do_syscall_64+0xc6/0x1e0
[ 5130.354030][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5130.354030][   T73] 
[ 5130.356054][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5130.356054][   T73]      netdev_get_by_index+0x5e/0x80
[ 5130.356054][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5130.356054][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5130.356054][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5130.356054][   T73]      ipv6_add_addr+0x411/0x2000
[ 5130.356054][   T73]      inet6_addr_add+0x30e/0xa40
[ 5130.356054][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5130.356054][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5130.356054][   T73]      netlink_rcv_skb+0x130/0x360
[ 5130.356054][   T73]      netlink_unicast+0x449/0x710
[ 5130.356054][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5130.356054][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5130.356054][   T73]      ___sys_sendmsg+0xee/0x170
[ 5130.356054][   T73]      __sys_sendmsg+0xcd/0x170
[ 5130.356054][   T73]      do_syscall_64+0xc6/0x1e0
[ 5130.356054][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5130.356054][   T73] 
[ 5130.358093][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5130.358093][   T73]      netdev_get_by_index+0x5e/0x80
[ 5130.358093][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5130.358093][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5130.358093][   T73]      ip6_route_add+0x1c/0x140
[ 5130.358093][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5130.358093][   T73]      addrconf_add_dev+0xe2/0x170
[ 5130.358093][   T73]      inet6_addr_add+0x12f/0xa40
[ 5130.358093][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5130.358093][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5130.358093][   T73]      netlink_rcv_skb+0x130/0x360
[ 5130.358093][   T73]      netlink_unicast+0x449/0x710
[ 5130.358093][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5130.358093][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5130.358093][   T73]      ___sys_sendmsg+0xee/0x170
[ 5130.358093][   T73]      __sys_sendmsg+0xcd/0x170
[ 5130.358093][   T73]      do_syscall_64+0xc6/0x1e0
[ 5130.358093][   T73] 
[ 5130.360089][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5130.360089][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5130.360089][   T73]      ipv6_find_idev+0x102/0x170
[ 5130.360089][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5130.360089][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5130.360089][   T73]      netlink_rcv_skb+0x130/0x360
[ 5130.360089][   T73]      netlink_unicast+0x449/0x710
[ 5130.360089][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5130.360089][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5130.360089][   T73]      ___sys_sendmsg+0xee/0x170
[ 5130.360089][   T73]      __sys_sendmsg+0xcd/0x170
[ 5130.360089][   T73]      do_syscall_64+0xc6/0x1e0
[ 5130.360089][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5130.360089][   T73] 
[ 5130.361666][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5130.361666][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5130.361666][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5130.361666][   T73]      ipv6_find_idev+0x102/0x170
[ 5130.361666][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5130.361666][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5130.361666][   T73]      netlink_rcv_skb+0x130/0x360
[ 5130.361666][   T73]      netlink_unicast+0x449/0x710
[ 5130.361666][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5130.361666][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5130.361666][   T73]      ___sys_sendmsg+0xee/0x170
[ 5130.361666][   T73]      __sys_sendmsg+0xcd/0x170
[ 5130.361666][   T73]      do_syscall_64+0xc6/0x1e0
[ 5130.361666][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5130.361666][   T73] 
[ 5130.363376][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5130.363658][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5130.363658][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5130.363658][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5130.363658][   T73]      fib6_nh_init+0xa22/0x1580
[ 5130.363658][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5130.363658][   T73]      ip6_route_add+0x1c/0x140
[ 5130.363658][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5130.363658][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5130.363658][   T73]      netlink_rcv_skb+0x130/0x360
[ 5130.363658][   T73]      netlink_unicast+0x449/0x710
[ 5130.363658][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5130.363658][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5130.363658][   T73]      ___sys_sendmsg+0xee/0x170
[ 5130.363658][   T73]      __sys_sendmsg+0xcd/0x170
[ 5130.363658][   T73]      do_syscall_64+0xc6/0x1e0
[ 5130.363658][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5130.363658][   T73] 
[ 5130.365756][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5130.365756][   T73]      dst_init+0x84/0x4a0
[ 5130.365756][   T73]      dst_alloc+0x97/0x150
[ 5130.365756][   T73]      ip6_dst_alloc+0x23/0x90
[ 5130.365756][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5130.365756][   T73]      ip6_pol_route+0x56f/0x840
[ 5130.365756][   T73]      fib6_rule_lookup+0x456/0x630
[ 5130.365756][   T73]      ip6_route_input+0x59c/0xa50
[ 5130.365756][   T73]      ipv6_rcv+0x397/0x810
[ 5130.365756][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5130.365756][   T73]      process_backlog+0x101/0x620
[ 5130.365756][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5130.365756][   T73]      net_rx_action+0x495/0xbe0
[ 5130.365756][   T73]      __do_softirq+0x1b5/0x7f6
[ 5130.365756][   T73] 
[ 5130.367652][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5130.367652][   T73]      netdev_get_by_index+0x5e/0x80
[ 5130.367652][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5130.367652][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5130.367652][   T73]      ip6_route_add+0x1c/0x140
[ 5130.367652][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5130.367652][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5130.367652][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5130.367652][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5130.367652][   T73]      netlink_rcv_skb+0x130/0x360
[ 5130.367652][   T73]      netlink_unicast+0x449/0x710
[ 5130.367652][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5130.367652][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5130.367652][   T73]      ___sys_sendmsg+0xee/0x170
[ 5130.367652][   T73]      __sys_sendmsg+0xcd/0x170
[ 5130.367652][   T73]      do_syscall_64+0xc6/0x1e0
[ 5130.367652][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5130.367652][   T73] 
[ 5130.369923][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5130.369923][   T73]      netdev_get_by_index+0x5e/0x80
[ 5130.369923][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5130.369923][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5130.369923][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5130.369923][   T73]      ipv6_add_addr+0x411/0x2000
[ 5130.369923][   T73]      inet6_addr_add+0x30e/0xa40
[ 5130.369923][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5130.369923][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5130.369923][   T73]      netlink_rcv_skb+0x130/0x360
[ 5130.369923][   T73]      netlink_unicast+0x449/0x710
[ 5130.369923][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5130.369923][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5130.369923][   T73]      ___sys_sendmsg+0xee/0x170
[ 5130.369923][   T73]      __sys_sendmsg+0xcd/0x170
[ 5130.369923][   T73]      do_syscall_64+0xc6/0x1e0
[ 5130.369923][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5130.369923][   T73] 
[ 5130.372199][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5130.372199][   T73]      netdev_get_by_index+0x5e/0x80
[ 5130.372199][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5130.372199][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5130.372199][   T73]      ip6_route_add+0x1c/0x140
[ 5130.372199][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5130.372199][   T73]      addrconf_add_dev+0xe2/0x170
[ 5130.372199][   T73]      inet6_addr_add+0x12f/0xa40
[ 5130.372199][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5130.372199][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5130.372199][   T73]      netlink_rcv_skb+0x130/0x360
[ 5130.372199][   T73]      netlink_unicast+0x449/0x710
[ 5130.372199][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5130.372199][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5130.372199][   T73]      ___sys_sendmsg+0xee/0x170
[ 5130.372199][   T73]      __sys_sendmsg+0xcd/0x170
[ 5130.372199][   T73]      do_syscall_64+0xc6/0x1e0
[ 5130.372199][   T73] 
[ 5130.374485][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5130.374485][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5130.374485][   T73]      ipv6_find_idev+0x102/0x170
[ 5130.374485][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5130.374485][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5130.374485][   T73]      netlink_rcv_skb+0x130/0x360
[ 5130.374485][   T73]      netlink_unicast+0x449/0x710
[ 5130.374485][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5130.374485][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5130.374485][   T73]      ___sys_sendmsg+0xee/0x170
[ 5130.374485][   T73]      __sys_sendmsg+0xcd/0x170
[ 5130.374485][   T73]      do_syscall_64+0xc6/0x1e0
[ 5130.374485][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5130.374485][   T73] 
[ 5130.376298][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5130.376298][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5130.376298][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5130.376298][   T73]      ipv6_find_idev+0x102/0x170
[ 5130.376298][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5130.376298][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5130.376298][   T73]      netlink_rcv_skb+0x130/0x360
[ 5130.376298][   T73]      netlink_unicast+0x449/0x710
[ 5130.376298][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5130.376298][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5130.376298][   T73]      ___sys_sendmsg+0xee/0x170
[ 5130.376298][   T73]      __sys_sendmsg+0xcd/0x170
[ 5130.376298][   T73]      do_syscall_64+0xc6/0x1e0
[ 5130.376298][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5130.376298][   T73] 
[ 5130.378200][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5130.378493][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5130.378493][   T73]      netdev_get_by_index+0x5e/0x80
[ 5130.378493][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5130.378493][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5130.378493][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5130.378493][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5130.378493][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5130.378493][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5130.378493][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5130.378493][   T73]      addrconf_dad_begin+0x310/0x670
[ 5130.378493][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5130.378493][   T73]      process_one_work+0x84d/0x18a0
[ 5130.378493][   T73]      worker_thread+0x587/0xd30
[ 5130.378493][   T73]      kthread+0x28a/0x350
[ 5130.378493][   T73]      ret_from_fork+0x31/0x70
[ 5130.378493][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5130.378493][   T73] 
[ 5130.380672][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5130.380672][   T73]      netdev_get_by_index+0x5e/0x80
[ 5130.380672][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5130.380672][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5130.380672][   T73]      ip6_route_add+0x1c/0x140
[ 5130.380672][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5130.380672][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5130.380672][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5130.380672][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5130.380672][   T73]      netlink_rcv_skb+0x130/0x360
[ 5130.380672][   T73]      netlink_unicast+0x449/0x710
[ 5130.380672][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5130.380672][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5130.380672][   T73]      ___sys_sendmsg+0xee/0x170
[ 5130.380672][   T73]      __sys_sendmsg+0xcd/0x170
[ 5130.380672][   T73]      do_syscall_64+0xc6/0x1e0
[ 5130.380672][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5130.380672][   T73] 
[ 5130.382950][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5130.382950][   T73]      netdev_get_by_index+0x5e/0x80
[ 5130.382950][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5130.382950][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5130.382950][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5130.382950][   T73]      ipv6_add_addr+0x411/0x2000
[ 5130.382950][   T73]      inet6_addr_add+0x30e/0xa40
[ 5130.382950][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5130.382950][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5130.382950][   T73]      netlink_rcv_skb+0x130/0x360
[ 5130.382950][   T73]      netlink_unicast+0x449/0x710
[ 5130.382950][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5130.382950][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5130.382950][   T73]      ___sys_sendmsg+0xee/0x170
[ 5130.382950][   T73]      __sys_sendmsg+0xcd/0x170
[ 5130.382950][   T73]      do_syscall_64+0xc6/0x1e0
[ 5130.382950][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5130.382950][   T73] 
[ 5130.385275][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5130.385275][   T73]      netdev_get_by_index+0x5e/0x80
[ 5130.385275][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5130.385275][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5130.385275][   T73]      ip6_route_add+0x1c/0x140
[ 5130.385275][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5130.385275][   T73]      addrconf_add_dev+0xe2/0x170
[ 5130.385275][   T73]      inet6_addr_add+0x12f/0xa40
[ 5130.385275][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5130.385275][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5130.385275][   T73]      netlink_rcv_skb+0x130/0x360
[ 5130.385275][   T73]      netlink_unicast+0x449/0x710
[ 5130.385275][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5130.385275][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5130.385275][   T73]      ___sys_sendmsg+0xee/0x170
[ 5130.385275][   T73]      __sys_sendmsg+0xcd/0x170
[ 5130.385275][   T73]      do_syscall_64+0xc6/0x1e0
[ 5130.385275][   T73] 
[ 5130.387454][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5130.387454][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5130.387454][   T73]      ipv6_find_idev+0x102/0x170
[ 5130.387454][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5130.387454][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5130.387454][   T73]      netlink_rcv_skb+0x130/0x360
[ 5130.387454][   T73]      netlink_unicast+0x449/0x710
[ 5130.387454][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5130.387454][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5130.387454][   T73]      ___sys_sendmsg+0xee/0x170
[ 5130.387454][   T73]      __sys_sendmsg+0xcd/0x170
[ 5130.387454][   T73]      do_syscall_64+0xc6/0x1e0
[ 5130.387454][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5130.387454][   T73] 
[ 5130.389194][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5130.389194][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5130.389194][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5130.389194][   T73]      ipv6_find_idev+0x102/0x170
[ 5130.389194][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5130.389194][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5130.389194][   T73]      netlink_rcv_skb+0x130/0x360
[ 5130.389194][   T73]      netlink_unicast+0x449/0x710
[ 5130.389194][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5130.389194][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5130.389194][   T73]      ___sys_sendmsg+0xee/0x170
[ 5130.389194][   T73]      __sys_sendmsg+0xcd/0x170
[ 5130.389194][   T73]      do_syscall_64+0xc6/0x1e0
[ 5130.389194][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5130.389194][   T73] 
[ 5140.631795][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5140.632343][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5140.632343][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5140.632343][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5140.632343][   T73]      fib6_nh_init+0xa22/0x1580
[ 5140.632343][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5140.632343][   T73]      ip6_route_add+0x1c/0x140
[ 5140.632343][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5140.632343][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5140.632343][   T73]      netlink_rcv_skb+0x130/0x360
[ 5140.632343][   T73]      netlink_unicast+0x449/0x710
[ 5140.632343][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5140.632343][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5140.632343][   T73]      ___sys_sendmsg+0xee/0x170
[ 5140.632343][   T73]      __sys_sendmsg+0xcd/0x170
[ 5140.632343][   T73]      do_syscall_64+0xc6/0x1e0
[ 5140.632343][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5140.632343][   T73] 
[ 5140.634465][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5140.634465][   T73]      dst_init+0x84/0x4a0
[ 5140.634465][   T73]      dst_alloc+0x97/0x150
[ 5140.634465][   T73]      ip6_dst_alloc+0x23/0x90
[ 5140.634465][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5140.634465][   T73]      ip6_pol_route+0x56f/0x840
[ 5140.634465][   T73]      fib6_rule_lookup+0x456/0x630
[ 5140.634465][   T73]      ip6_route_input+0x59c/0xa50
[ 5140.634465][   T73]      ipv6_rcv+0x397/0x810
[ 5140.634465][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5140.634465][   T73]      process_backlog+0x101/0x620
[ 5140.634465][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5140.634465][   T73]      net_rx_action+0x495/0xbe0
[ 5140.634465][   T73]      __do_softirq+0x1b5/0x7f6
[ 5140.634465][   T73] 
[ 5140.636303][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5140.636303][   T73]      netdev_get_by_index+0x5e/0x80
[ 5140.636303][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5140.636303][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5140.636303][   T73]      ip6_route_add+0x1c/0x140
[ 5140.636303][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5140.636303][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5140.636303][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5140.636303][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5140.636303][   T73]      netlink_rcv_skb+0x130/0x360
[ 5140.636303][   T73]      netlink_unicast+0x449/0x710
[ 5140.636303][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5140.636303][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5140.636303][   T73]      ___sys_sendmsg+0xee/0x170
[ 5140.636303][   T73]      __sys_sendmsg+0xcd/0x170
[ 5140.636303][   T73]      do_syscall_64+0xc6/0x1e0
[ 5140.636303][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5140.636303][   T73] 
[ 5140.638558][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5140.638558][   T73]      netdev_get_by_index+0x5e/0x80
[ 5140.638558][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5140.638558][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5140.638558][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5140.638558][   T73]      ipv6_add_addr+0x411/0x2000
[ 5140.638558][   T73]      inet6_addr_add+0x30e/0xa40
[ 5140.638558][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5140.638558][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5140.638558][   T73]      netlink_rcv_skb+0x130/0x360
[ 5140.638558][   T73]      netlink_unicast+0x449/0x710
[ 5140.638558][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5140.638558][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5140.638558][   T73]      ___sys_sendmsg+0xee/0x170
[ 5140.638558][   T73]      __sys_sendmsg+0xcd/0x170
[ 5140.638558][   T73]      do_syscall_64+0xc6/0x1e0
[ 5140.638558][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5140.638558][   T73] 
[ 5140.640797][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5140.640797][   T73]      netdev_get_by_index+0x5e/0x80
[ 5140.640797][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5140.640797][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5140.640797][   T73]      ip6_route_add+0x1c/0x140
[ 5140.640797][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5140.640797][   T73]      addrconf_add_dev+0xe2/0x170
[ 5140.640797][   T73]      inet6_addr_add+0x12f/0xa40
[ 5140.640797][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5140.640797][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5140.640797][   T73]      netlink_rcv_skb+0x130/0x360
[ 5140.640797][   T73]      netlink_unicast+0x449/0x710
[ 5140.640797][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5140.640797][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5140.640797][   T73]      ___sys_sendmsg+0xee/0x170
[ 5140.640797][   T73]      __sys_sendmsg+0xcd/0x170
[ 5140.640797][   T73]      do_syscall_64+0xc6/0x1e0
[ 5140.640797][   T73] 
[ 5140.642997][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5140.642997][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5140.642997][   T73]      ipv6_find_idev+0x102/0x170
[ 5140.642997][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5140.642997][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5140.642997][   T73]      netlink_rcv_skb+0x130/0x360
[ 5140.642997][   T73]      netlink_unicast+0x449/0x710
[ 5140.642997][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5140.642997][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5140.642997][   T73]      ___sys_sendmsg+0xee/0x170
[ 5140.642997][   T73]      __sys_sendmsg+0xcd/0x170
[ 5140.642997][   T73]      do_syscall_64+0xc6/0x1e0
[ 5140.642997][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5140.642997][   T73] 
[ 5140.644716][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5140.644716][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5140.644716][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5140.644716][   T73]      ipv6_find_idev+0x102/0x170
[ 5140.644716][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5140.644716][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5140.644716][   T73]      netlink_rcv_skb+0x130/0x360
[ 5140.644716][   T73]      netlink_unicast+0x449/0x710
[ 5140.644716][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5140.644716][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5140.644716][   T73]      ___sys_sendmsg+0xee/0x170
[ 5140.644716][   T73]      __sys_sendmsg+0xcd/0x170
[ 5140.644716][   T73]      do_syscall_64+0xc6/0x1e0
[ 5140.644716][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5140.644716][   T73] 
[ 5140.646614][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5140.646934][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5140.646934][   T73]      netdev_get_by_index+0x5e/0x80
[ 5140.646934][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5140.646934][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5140.646934][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5140.646934][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5140.646934][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5140.646934][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5140.646934][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5140.646934][   T73]      addrconf_dad_begin+0x310/0x670
[ 5140.646934][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5140.646934][   T73]      process_one_work+0x84d/0x18a0
[ 5140.646934][   T73]      worker_thread+0x587/0xd30
[ 5140.646934][   T73]      kthread+0x28a/0x350
[ 5140.646934][   T73]      ret_from_fork+0x31/0x70
[ 5140.646934][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5140.646934][   T73] 
[ 5140.649072][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5140.649072][   T73]      netdev_get_by_index+0x5e/0x80
[ 5140.649072][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5140.649072][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5140.649072][   T73]      ip6_route_add+0x1c/0x140
[ 5140.649072][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5140.649072][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5140.649072][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5140.649072][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5140.649072][   T73]      netlink_rcv_skb+0x130/0x360
[ 5140.649072][   T73]      netlink_unicast+0x449/0x710
[ 5140.649072][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5140.649072][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5140.649072][   T73]      ___sys_sendmsg+0xee/0x170
[ 5140.649072][   T73]      __sys_sendmsg+0xcd/0x170
[ 5140.649072][   T73]      do_syscall_64+0xc6/0x1e0
[ 5140.649072][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5140.649072][   T73] 
[ 5140.651290][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5140.651290][   T73]      netdev_get_by_index+0x5e/0x80
[ 5140.651290][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5140.651290][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5140.651290][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5140.651290][   T73]      ipv6_add_addr+0x411/0x2000
[ 5140.651290][   T73]      inet6_addr_add+0x30e/0xa40
[ 5140.651290][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5140.651290][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5140.651290][   T73]      netlink_rcv_skb+0x130/0x360
[ 5140.651290][   T73]      netlink_unicast+0x449/0x710
[ 5140.651290][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5140.651290][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5140.651290][   T73]      ___sys_sendmsg+0xee/0x170
[ 5140.651290][   T73]      __sys_sendmsg+0xcd/0x170
[ 5140.651290][   T73]      do_syscall_64+0xc6/0x1e0
[ 5140.651290][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5140.651290][   T73] 
[ 5140.653515][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5140.653515][   T73]      netdev_get_by_index+0x5e/0x80
[ 5140.653515][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5140.653515][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5140.653515][   T73]      ip6_route_add+0x1c/0x140
[ 5140.653515][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5140.653515][   T73]      addrconf_add_dev+0xe2/0x170
[ 5140.653515][   T73]      inet6_addr_add+0x12f/0xa40
[ 5140.653515][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5140.653515][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5140.653515][   T73]      netlink_rcv_skb+0x130/0x360
[ 5140.653515][   T73]      netlink_unicast+0x449/0x710
[ 5140.653515][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5140.653515][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5140.653515][   T73]      ___sys_sendmsg+0xee/0x170
[ 5140.653515][   T73]      __sys_sendmsg+0xcd/0x170
[ 5140.653515][   T73]      do_syscall_64+0xc6/0x1e0
[ 5140.653515][   T73] 
[ 5140.655713][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5140.655713][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5140.655713][   T73]      ipv6_find_idev+0x102/0x170
[ 5140.655713][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5140.655713][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5140.655713][   T73]      netlink_rcv_skb+0x130/0x360
[ 5140.655713][   T73]      netlink_unicast+0x449/0x710
[ 5140.655713][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5140.655713][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5140.655713][   T73]      ___sys_sendmsg+0xee/0x170
[ 5140.655713][   T73]      __sys_sendmsg+0xcd/0x170
[ 5140.655713][   T73]      do_syscall_64+0xc6/0x1e0
[ 5140.655713][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5140.655713][   T73] 
[ 5140.657430][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5140.657430][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5140.657430][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5140.657430][   T73]      ipv6_find_idev+0x102/0x170
[ 5140.657430][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5140.657430][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5140.657430][   T73]      netlink_rcv_skb+0x130/0x360
[ 5140.657430][   T73]      netlink_unicast+0x449/0x710
[ 5140.657430][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5140.657430][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5140.657430][   T73]      ___sys_sendmsg+0xee/0x170
[ 5140.657430][   T73]      __sys_sendmsg+0xcd/0x170
[ 5140.657430][   T73]      do_syscall_64+0xc6/0x1e0
[ 5140.657430][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5140.657430][   T73] 
[ 5140.659322][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5140.659611][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5140.659611][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5140.659611][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5140.659611][   T73]      fib6_nh_init+0xa22/0x1580
[ 5140.659611][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5140.659611][   T73]      ip6_route_add+0x1c/0x140
[ 5140.659611][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5140.659611][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5140.659611][   T73]      netlink_rcv_skb+0x130/0x360
[ 5140.659611][   T73]      netlink_unicast+0x449/0x710
[ 5140.659611][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5140.659611][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5140.659611][   T73]      ___sys_sendmsg+0xee/0x170
[ 5140.659611][   T73]      __sys_sendmsg+0xcd/0x170
[ 5140.659611][   T73]      do_syscall_64+0xc6/0x1e0
[ 5140.659611][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5140.659611][   T73] 
[ 5140.661922][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5140.661922][   T73]      dst_init+0x84/0x4a0
[ 5140.661922][   T73]      dst_alloc+0x97/0x150
[ 5140.661922][   T73]      ip6_dst_alloc+0x23/0x90
[ 5140.661922][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5140.661922][   T73]      ip6_pol_route+0x56f/0x840
[ 5140.661922][   T73]      fib6_rule_lookup+0x456/0x630
[ 5140.661922][   T73]      ip6_route_input+0x59c/0xa50
[ 5140.661922][   T73]      ipv6_rcv+0x397/0x810
[ 5140.661922][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5140.661922][   T73]      process_backlog+0x101/0x620
[ 5140.661922][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5140.661922][   T73]      net_rx_action+0x495/0xbe0
[ 5140.661922][   T73]      __do_softirq+0x1b5/0x7f6
[ 5140.661922][   T73] 
[ 5140.664004][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5140.664004][   T73]      netdev_get_by_index+0x5e/0x80
[ 5140.664004][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5140.664004][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5140.664004][   T73]      ip6_route_add+0x1c/0x140
[ 5140.664004][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5140.664004][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5140.664004][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5140.664004][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5140.664004][   T73]      netlink_rcv_skb+0x130/0x360
[ 5140.664004][   T73]      netlink_unicast+0x449/0x710
[ 5140.664004][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5140.664004][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5140.664004][   T73]      ___sys_sendmsg+0xee/0x170
[ 5140.664004][   T73]      __sys_sendmsg+0xcd/0x170
[ 5140.664004][   T73]      do_syscall_64+0xc6/0x1e0
[ 5140.664004][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5140.664004][   T73] 
[ 5140.666508][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5140.666508][   T73]      netdev_get_by_index+0x5e/0x80
[ 5140.666508][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5140.666508][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5140.666508][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5140.666508][   T73]      ipv6_add_addr+0x411/0x2000
[ 5140.666508][   T73]      inet6_addr_add+0x30e/0xa40
[ 5140.666508][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5140.666508][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5140.666508][   T73]      netlink_rcv_skb+0x130/0x360
[ 5140.666508][   T73]      netlink_unicast+0x449/0x710
[ 5140.666508][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5140.666508][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5140.666508][   T73]      ___sys_sendmsg+0xee/0x170
[ 5140.666508][   T73]      __sys_sendmsg+0xcd/0x170
[ 5140.666508][   T73]      do_syscall_64+0xc6/0x1e0
[ 5140.666508][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5140.666508][   T73] 
[ 5140.668931][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5140.668931][   T73]      netdev_get_by_index+0x5e/0x80
[ 5140.668931][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5140.668931][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5140.668931][   T73]      ip6_route_add+0x1c/0x140
[ 5140.668931][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5140.668931][   T73]      addrconf_add_dev+0xe2/0x170
[ 5140.668931][   T73]      inet6_addr_add+0x12f/0xa40
[ 5140.668931][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5140.668931][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5140.668931][   T73]      netlink_rcv_skb+0x130/0x360
[ 5140.668931][   T73]      netlink_unicast+0x449/0x710
[ 5140.668931][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5140.668931][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5140.668931][   T73]      ___sys_sendmsg+0xee/0x170
[ 5140.668931][   T73]      __sys_sendmsg+0xcd/0x170
[ 5140.668931][   T73]      do_syscall_64+0xc6/0x1e0
[ 5140.668931][   T73] 
[ 5140.671349][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5140.671349][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5140.671349][   T73]      ipv6_find_idev+0x102/0x170
[ 5140.671349][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5140.671349][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5140.671349][   T73]      netlink_rcv_skb+0x130/0x360
[ 5140.671349][   T73]      netlink_unicast+0x449/0x710
[ 5140.671349][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5140.671349][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5140.671349][   T73]      ___sys_sendmsg+0xee/0x170
[ 5140.671349][   T73]      __sys_sendmsg+0xcd/0x170
[ 5140.671349][   T73]      do_syscall_64+0xc6/0x1e0
[ 5140.671349][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5140.671349][   T73] 
[ 5140.673332][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5140.673332][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5140.673332][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5140.673332][   T73]      ipv6_find_idev+0x102/0x170
[ 5140.673332][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5140.673332][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5140.673332][   T73]      netlink_rcv_skb+0x130/0x360
[ 5140.673332][   T73]      netlink_unicast+0x449/0x710
[ 5140.673332][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5140.673332][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5140.673332][   T73]      ___sys_sendmsg+0xee/0x170
[ 5140.673332][   T73]      __sys_sendmsg+0xcd/0x170
[ 5140.673332][   T73]      do_syscall_64+0xc6/0x1e0
[ 5140.673332][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5140.673332][   T73] 
[ 5140.675410][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5140.676217][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5140.676217][   T73]      netdev_get_by_index+0x5e/0x80
[ 5140.676217][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5140.676217][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5140.676217][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5140.676217][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5140.676217][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5140.676217][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5140.676217][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5140.676217][   T73]      addrconf_dad_begin+0x310/0x670
[ 5140.676217][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5140.676217][   T73]      process_one_work+0x84d/0x18a0
[ 5140.676217][   T73]      worker_thread+0x587/0xd30
[ 5140.676217][   T73]      kthread+0x28a/0x350
[ 5140.676217][   T73]      ret_from_fork+0x31/0x70
[ 5140.676217][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5140.676217][   T73] 
[ 5140.678359][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5140.678359][   T73]      netdev_get_by_index+0x5e/0x80
[ 5140.678359][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5140.678359][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5140.678359][   T73]      ip6_route_add+0x1c/0x140
[ 5140.678359][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5140.678359][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5140.678359][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5140.678359][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5140.678359][   T73]      netlink_rcv_skb+0x130/0x360
[ 5140.678359][   T73]      netlink_unicast+0x449/0x710
[ 5140.678359][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5140.678359][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5140.678359][   T73]      ___sys_sendmsg+0xee/0x170
[ 5140.678359][   T73]      __sys_sendmsg+0xcd/0x170
[ 5140.678359][   T73]      do_syscall_64+0xc6/0x1e0
[ 5140.678359][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5140.678359][   T73] 
[ 5140.680626][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5140.680626][   T73]      netdev_get_by_index+0x5e/0x80
[ 5140.680626][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5140.680626][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5140.680626][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5140.680626][   T73]      ipv6_add_addr+0x411/0x2000
[ 5140.680626][   T73]      inet6_addr_add+0x30e/0xa40
[ 5140.680626][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5140.680626][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5140.680626][   T73]      netlink_rcv_skb+0x130/0x360
[ 5140.680626][   T73]      netlink_unicast+0x449/0x710
[ 5140.680626][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5140.680626][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5140.680626][   T73]      ___sys_sendmsg+0xee/0x170
[ 5140.680626][   T73]      __sys_sendmsg+0xcd/0x170
[ 5140.680626][   T73]      do_syscall_64+0xc6/0x1e0
[ 5140.680626][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5140.680626][   T73] 
[ 5140.683134][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5140.683134][   T73]      netdev_get_by_index+0x5e/0x80
[ 5140.683134][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5140.683134][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5140.683134][   T73]      ip6_route_add+0x1c/0x140
[ 5140.683134][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5140.683134][   T73]      addrconf_add_dev+0xe2/0x170
[ 5140.683134][   T73]      inet6_addr_add+0x12f/0xa40
[ 5140.683134][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5140.683134][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5140.683134][   T73]      netlink_rcv_skb+0x130/0x360
[ 5140.683134][   T73]      netlink_unicast+0x449/0x710
[ 5140.683134][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5140.683134][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5140.683134][   T73]      ___sys_sendmsg+0xee/0x170
[ 5140.683134][   T73]      __sys_sendmsg+0xcd/0x170
[ 5140.683134][   T73]      do_syscall_64+0xc6/0x1e0
[ 5140.683134][   T73] 
[ 5140.685605][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5140.685605][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5140.685605][   T73]      ipv6_find_idev+0x102/0x170
[ 5140.685605][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5140.685605][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5140.685605][   T73]      netlink_rcv_skb+0x130/0x360
[ 5140.685605][   T73]      netlink_unicast+0x449/0x710
[ 5140.685605][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5140.685605][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5140.685605][   T73]      ___sys_sendmsg+0xee/0x170
[ 5140.685605][   T73]      __sys_sendmsg+0xcd/0x170
[ 5140.685605][   T73]      do_syscall_64+0xc6/0x1e0
[ 5140.685605][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5140.685605][   T73] 
[ 5140.687594][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5140.687594][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5140.687594][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5140.687594][   T73]      ipv6_find_idev+0x102/0x170
[ 5140.687594][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5140.687594][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5140.687594][   T73]      netlink_rcv_skb+0x130/0x360
[ 5140.687594][   T73]      netlink_unicast+0x449/0x710
[ 5140.687594][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5140.687594][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5140.687594][   T73]      ___sys_sendmsg+0xee/0x170
[ 5140.687594][   T73]      __sys_sendmsg+0xcd/0x170
[ 5140.687594][   T73]      do_syscall_64+0xc6/0x1e0
[ 5140.687594][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5140.687594][   T73] 
[ 5150.927778][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5150.928296][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5150.928296][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5150.928296][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5150.928296][   T73]      fib6_nh_init+0xa22/0x1580
[ 5150.928296][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5150.928296][   T73]      ip6_route_add+0x1c/0x140
[ 5150.928296][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5150.928296][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5150.928296][   T73]      netlink_rcv_skb+0x130/0x360
[ 5150.928296][   T73]      netlink_unicast+0x449/0x710
[ 5150.928296][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5150.928296][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5150.928296][   T73]      ___sys_sendmsg+0xee/0x170
[ 5150.928296][   T73]      __sys_sendmsg+0xcd/0x170
[ 5150.928296][   T73]      do_syscall_64+0xc6/0x1e0
[ 5150.928296][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5150.928296][   T73] 
[ 5150.930423][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5150.930423][   T73]      dst_init+0x84/0x4a0
[ 5150.930423][   T73]      dst_alloc+0x97/0x150
[ 5150.930423][   T73]      ip6_dst_alloc+0x23/0x90
[ 5150.930423][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5150.930423][   T73]      ip6_pol_route+0x56f/0x840
[ 5150.930423][   T73]      fib6_rule_lookup+0x456/0x630
[ 5150.930423][   T73]      ip6_route_input+0x59c/0xa50
[ 5150.930423][   T73]      ipv6_rcv+0x397/0x810
[ 5150.930423][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5150.930423][   T73]      process_backlog+0x101/0x620
[ 5150.930423][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5150.930423][   T73]      net_rx_action+0x495/0xbe0
[ 5150.930423][   T73]      __do_softirq+0x1b5/0x7f6
[ 5150.930423][   T73] 
[ 5150.932253][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5150.932253][   T73]      netdev_get_by_index+0x5e/0x80
[ 5150.932253][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5150.932253][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5150.932253][   T73]      ip6_route_add+0x1c/0x140
[ 5150.932253][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5150.932253][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5150.932253][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5150.932253][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5150.932253][   T73]      netlink_rcv_skb+0x130/0x360
[ 5150.932253][   T73]      netlink_unicast+0x449/0x710
[ 5150.932253][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5150.932253][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5150.932253][   T73]      ___sys_sendmsg+0xee/0x170
[ 5150.932253][   T73]      __sys_sendmsg+0xcd/0x170
[ 5150.932253][   T73]      do_syscall_64+0xc6/0x1e0
[ 5150.932253][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5150.932253][   T73] 
[ 5150.934501][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5150.934501][   T73]      netdev_get_by_index+0x5e/0x80
[ 5150.934501][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5150.934501][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5150.934501][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5150.934501][   T73]      ipv6_add_addr+0x411/0x2000
[ 5150.934501][   T73]      inet6_addr_add+0x30e/0xa40
[ 5150.934501][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5150.934501][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5150.934501][   T73]      netlink_rcv_skb+0x130/0x360
[ 5150.934501][   T73]      netlink_unicast+0x449/0x710
[ 5150.934501][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5150.934501][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5150.934501][   T73]      ___sys_sendmsg+0xee/0x170
[ 5150.934501][   T73]      __sys_sendmsg+0xcd/0x170
[ 5150.934501][   T73]      do_syscall_64+0xc6/0x1e0
[ 5150.934501][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5150.934501][   T73] 
[ 5150.936712][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5150.936712][   T73]      netdev_get_by_index+0x5e/0x80
[ 5150.936712][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5150.936712][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5150.936712][   T73]      ip6_route_add+0x1c/0x140
[ 5150.936712][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5150.936712][   T73]      addrconf_add_dev+0xe2/0x170
[ 5150.936712][   T73]      inet6_addr_add+0x12f/0xa40
[ 5150.936712][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5150.936712][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5150.936712][   T73]      netlink_rcv_skb+0x130/0x360
[ 5150.936712][   T73]      netlink_unicast+0x449/0x710
[ 5150.936712][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5150.936712][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5150.936712][   T73]      ___sys_sendmsg+0xee/0x170
[ 5150.936712][   T73]      __sys_sendmsg+0xcd/0x170
[ 5150.936712][   T73]      do_syscall_64+0xc6/0x1e0
[ 5150.936712][   T73] 
[ 5150.938901][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5150.938901][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5150.938901][   T73]      ipv6_find_idev+0x102/0x170
[ 5150.938901][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5150.938901][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5150.938901][   T73]      netlink_rcv_skb+0x130/0x360
[ 5150.938901][   T73]      netlink_unicast+0x449/0x710
[ 5150.938901][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5150.938901][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5150.938901][   T73]      ___sys_sendmsg+0xee/0x170
[ 5150.938901][   T73]      __sys_sendmsg+0xcd/0x170
[ 5150.938901][   T73]      do_syscall_64+0xc6/0x1e0
[ 5150.938901][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5150.938901][   T73] 
[ 5150.940620][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5150.940620][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5150.940620][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5150.940620][   T73]      ipv6_find_idev+0x102/0x170
[ 5150.940620][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5150.940620][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5150.940620][   T73]      netlink_rcv_skb+0x130/0x360
[ 5150.940620][   T73]      netlink_unicast+0x449/0x710
[ 5150.940620][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5150.940620][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5150.940620][   T73]      ___sys_sendmsg+0xee/0x170
[ 5150.940620][   T73]      __sys_sendmsg+0xcd/0x170
[ 5150.940620][   T73]      do_syscall_64+0xc6/0x1e0
[ 5150.940620][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5150.940620][   T73] 
[ 5150.942525][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5150.942839][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5150.942839][   T73]      netdev_get_by_index+0x5e/0x80
[ 5150.942839][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5150.942839][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5150.942839][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5150.942839][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5150.942839][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5150.942839][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5150.942839][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5150.942839][   T73]      addrconf_dad_begin+0x310/0x670
[ 5150.942839][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5150.942839][   T73]      process_one_work+0x84d/0x18a0
[ 5150.942839][   T73]      worker_thread+0x587/0xd30
[ 5150.942839][   T73]      kthread+0x28a/0x350
[ 5150.942839][   T73]      ret_from_fork+0x31/0x70
[ 5150.942839][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5150.942839][   T73] 
[ 5150.944979][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5150.944979][   T73]      netdev_get_by_index+0x5e/0x80
[ 5150.944979][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5150.944979][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5150.944979][   T73]      ip6_route_add+0x1c/0x140
[ 5150.944979][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5150.944979][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5150.944979][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5150.944979][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5150.944979][   T73]      netlink_rcv_skb+0x130/0x360
[ 5150.944979][   T73]      netlink_unicast+0x449/0x710
[ 5150.944979][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5150.944979][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5150.944979][   T73]      ___sys_sendmsg+0xee/0x170
[ 5150.944979][   T73]      __sys_sendmsg+0xcd/0x170
[ 5150.944979][   T73]      do_syscall_64+0xc6/0x1e0
[ 5150.944979][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5150.944979][   T73] 
[ 5150.947241][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5150.947241][   T73]      netdev_get_by_index+0x5e/0x80
[ 5150.947241][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5150.947241][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5150.947241][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5150.947241][   T73]      ipv6_add_addr+0x411/0x2000
[ 5150.947241][   T73]      inet6_addr_add+0x30e/0xa40
[ 5150.947241][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5150.947241][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5150.947241][   T73]      netlink_rcv_skb+0x130/0x360
[ 5150.947241][   T73]      netlink_unicast+0x449/0x710
[ 5150.947241][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5150.947241][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5150.947241][   T73]      ___sys_sendmsg+0xee/0x170
[ 5150.947241][   T73]      __sys_sendmsg+0xcd/0x170
[ 5150.947241][   T73]      do_syscall_64+0xc6/0x1e0
[ 5150.947241][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5150.947241][   T73] 
[ 5150.949463][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5150.949463][   T73]      netdev_get_by_index+0x5e/0x80
[ 5150.949463][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5150.949463][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5150.949463][   T73]      ip6_route_add+0x1c/0x140
[ 5150.949463][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5150.949463][   T73]      addrconf_add_dev+0xe2/0x170
[ 5150.949463][   T73]      inet6_addr_add+0x12f/0xa40
[ 5150.949463][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5150.949463][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5150.949463][   T73]      netlink_rcv_skb+0x130/0x360
[ 5150.949463][   T73]      netlink_unicast+0x449/0x710
[ 5150.949463][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5150.949463][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5150.949463][   T73]      ___sys_sendmsg+0xee/0x170
[ 5150.949463][   T73]      __sys_sendmsg+0xcd/0x170
[ 5150.949463][   T73]      do_syscall_64+0xc6/0x1e0
[ 5150.949463][   T73] 
[ 5150.951654][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5150.951654][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5150.951654][   T73]      ipv6_find_idev+0x102/0x170
[ 5150.951654][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5150.951654][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5150.951654][   T73]      netlink_rcv_skb+0x130/0x360
[ 5150.951654][   T73]      netlink_unicast+0x449/0x710
[ 5150.951654][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5150.951654][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5150.951654][   T73]      ___sys_sendmsg+0xee/0x170
[ 5150.951654][   T73]      __sys_sendmsg+0xcd/0x170
[ 5150.951654][   T73]      do_syscall_64+0xc6/0x1e0
[ 5150.951654][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5150.951654][   T73] 
[ 5150.953374][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5150.953374][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5150.953374][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5150.953374][   T73]      ipv6_find_idev+0x102/0x170
[ 5150.953374][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5150.953374][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5150.953374][   T73]      netlink_rcv_skb+0x130/0x360
[ 5150.953374][   T73]      netlink_unicast+0x449/0x710
[ 5150.953374][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5150.953374][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5150.953374][   T73]      ___sys_sendmsg+0xee/0x170
[ 5150.953374][   T73]      __sys_sendmsg+0xcd/0x170
[ 5150.953374][   T73]      do_syscall_64+0xc6/0x1e0
[ 5150.953374][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5150.953374][   T73] 
[ 5150.955252][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5150.955542][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5150.955542][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5150.955542][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5150.955542][   T73]      fib6_nh_init+0xa22/0x1580
[ 5150.955542][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5150.955542][   T73]      ip6_route_add+0x1c/0x140
[ 5150.955542][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5150.955542][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5150.955542][   T73]      netlink_rcv_skb+0x130/0x360
[ 5150.955542][   T73]      netlink_unicast+0x449/0x710
[ 5150.955542][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5150.955542][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5150.955542][   T73]      ___sys_sendmsg+0xee/0x170
[ 5150.955542][   T73]      __sys_sendmsg+0xcd/0x170
[ 5150.955542][   T73]      do_syscall_64+0xc6/0x1e0
[ 5150.955542][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5150.955542][   T73] 
[ 5150.957845][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5150.957845][   T73]      dst_init+0x84/0x4a0
[ 5150.957845][   T73]      dst_alloc+0x97/0x150
[ 5150.957845][   T73]      ip6_dst_alloc+0x23/0x90
[ 5150.957845][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5150.957845][   T73]      ip6_pol_route+0x56f/0x840
[ 5150.957845][   T73]      fib6_rule_lookup+0x456/0x630
[ 5150.957845][   T73]      ip6_route_input+0x59c/0xa50
[ 5150.957845][   T73]      ipv6_rcv+0x397/0x810
[ 5150.957845][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5150.957845][   T73]      process_backlog+0x101/0x620
[ 5150.957845][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5150.957845][   T73]      net_rx_action+0x495/0xbe0
[ 5150.957845][   T73]      __do_softirq+0x1b5/0x7f6
[ 5150.957845][   T73] 
[ 5150.959878][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5150.959878][   T73]      netdev_get_by_index+0x5e/0x80
[ 5150.959878][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5150.959878][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5150.959878][   T73]      ip6_route_add+0x1c/0x140
[ 5150.959878][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5150.959878][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5150.959878][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5150.959878][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5150.959878][   T73]      netlink_rcv_skb+0x130/0x360
[ 5150.959878][   T73]      netlink_unicast+0x449/0x710
[ 5150.959878][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5150.959878][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5150.959878][   T73]      ___sys_sendmsg+0xee/0x170
[ 5150.959878][   T73]      __sys_sendmsg+0xcd/0x170
[ 5150.959878][   T73]      do_syscall_64+0xc6/0x1e0
[ 5150.959878][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5150.959878][   T73] 
[ 5150.962372][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5150.962372][   T73]      netdev_get_by_index+0x5e/0x80
[ 5150.962372][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5150.962372][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5150.962372][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5150.962372][   T73]      ipv6_add_addr+0x411/0x2000
[ 5150.962372][   T73]      inet6_addr_add+0x30e/0xa40
[ 5150.962372][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5150.962372][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5150.962372][   T73]      netlink_rcv_skb+0x130/0x360
[ 5150.962372][   T73]      netlink_unicast+0x449/0x710
[ 5150.962372][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5150.962372][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5150.962372][   T73]      ___sys_sendmsg+0xee/0x170
[ 5150.962372][   T73]      __sys_sendmsg+0xcd/0x170
[ 5150.962372][   T73]      do_syscall_64+0xc6/0x1e0
[ 5150.962372][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5150.962372][   T73] 
[ 5150.964790][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5150.964790][   T73]      netdev_get_by_index+0x5e/0x80
[ 5150.964790][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5150.964790][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5150.964790][   T73]      ip6_route_add+0x1c/0x140
[ 5150.964790][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5150.964790][   T73]      addrconf_add_dev+0xe2/0x170
[ 5150.964790][   T73]      inet6_addr_add+0x12f/0xa40
[ 5150.964790][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5150.964790][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5150.964790][   T73]      netlink_rcv_skb+0x130/0x360
[ 5150.964790][   T73]      netlink_unicast+0x449/0x710
[ 5150.964790][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5150.964790][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5150.964790][   T73]      ___sys_sendmsg+0xee/0x170
[ 5150.964790][   T73]      __sys_sendmsg+0xcd/0x170
[ 5150.964790][   T73]      do_syscall_64+0xc6/0x1e0
[ 5150.964790][   T73] 
[ 5150.967262][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5150.967262][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5150.967262][   T73]      ipv6_find_idev+0x102/0x170
[ 5150.967262][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5150.967262][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5150.967262][   T73]      netlink_rcv_skb+0x130/0x360
[ 5150.967262][   T73]      netlink_unicast+0x449/0x710
[ 5150.967262][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5150.967262][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5150.967262][   T73]      ___sys_sendmsg+0xee/0x170
[ 5150.967262][   T73]      __sys_sendmsg+0xcd/0x170
[ 5150.967262][   T73]      do_syscall_64+0xc6/0x1e0
[ 5150.967262][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5150.967262][   T73] 
[ 5150.969172][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5150.969172][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5150.969172][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5150.969172][   T73]      ipv6_find_idev+0x102/0x170
[ 5150.969172][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5150.969172][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5150.969172][   T73]      netlink_rcv_skb+0x130/0x360
[ 5150.969172][   T73]      netlink_unicast+0x449/0x710
[ 5150.969172][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5150.969172][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5150.969172][   T73]      ___sys_sendmsg+0xee/0x170
[ 5150.969172][   T73]      __sys_sendmsg+0xcd/0x170
[ 5150.969172][   T73]      do_syscall_64+0xc6/0x1e0
[ 5150.969172][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5150.969172][   T73] 
[ 5150.971660][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5150.971960][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5150.971960][   T73]      netdev_get_by_index+0x5e/0x80
[ 5150.971960][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5150.971960][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5150.971960][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5150.971960][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5150.971960][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5150.971960][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5150.971960][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5150.971960][   T73]      addrconf_dad_begin+0x310/0x670
[ 5150.971960][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5150.971960][   T73]      process_one_work+0x84d/0x18a0
[ 5150.971960][   T73]      worker_thread+0x587/0xd30
[ 5150.971960][   T73]      kthread+0x28a/0x350
[ 5150.971960][   T73]      ret_from_fork+0x31/0x70
[ 5150.971960][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5150.971960][   T73] 
[ 5150.974139][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5150.974139][   T73]      netdev_get_by_index+0x5e/0x80
[ 5150.974139][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5150.974139][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5150.974139][   T73]      ip6_route_add+0x1c/0x140
[ 5150.974139][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5150.974139][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5150.974139][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5150.974139][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5150.974139][   T73]      netlink_rcv_skb+0x130/0x360
[ 5150.974139][   T73]      netlink_unicast+0x449/0x710
[ 5150.974139][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5150.974139][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5150.974139][   T73]      ___sys_sendmsg+0xee/0x170
[ 5150.974139][   T73]      __sys_sendmsg+0xcd/0x170
[ 5150.974139][   T73]      do_syscall_64+0xc6/0x1e0
[ 5150.974139][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5150.974139][   T73] 
[ 5150.976506][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5150.976506][   T73]      netdev_get_by_index+0x5e/0x80
[ 5150.976506][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5150.976506][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5150.976506][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5150.976506][   T73]      ipv6_add_addr+0x411/0x2000
[ 5150.976506][   T73]      inet6_addr_add+0x30e/0xa40
[ 5150.976506][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5150.976506][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5150.976506][   T73]      netlink_rcv_skb+0x130/0x360
[ 5150.976506][   T73]      netlink_unicast+0x449/0x710
[ 5150.976506][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5150.976506][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5150.976506][   T73]      ___sys_sendmsg+0xee/0x170
[ 5150.976506][   T73]      __sys_sendmsg+0xcd/0x170
[ 5150.976506][   T73]      do_syscall_64+0xc6/0x1e0
[ 5150.976506][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5150.976506][   T73] 
[ 5150.978982][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5150.978982][   T73]      netdev_get_by_index+0x5e/0x80
[ 5150.978982][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5150.978982][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5150.978982][   T73]      ip6_route_add+0x1c/0x140
[ 5150.978982][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5150.978982][   T73]      addrconf_add_dev+0xe2/0x170
[ 5150.978982][   T73]      inet6_addr_add+0x12f/0xa40
[ 5150.978982][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5150.978982][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5150.978982][   T73]      netlink_rcv_skb+0x130/0x360
[ 5150.978982][   T73]      netlink_unicast+0x449/0x710
[ 5150.978982][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5150.978982][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5150.978982][   T73]      ___sys_sendmsg+0xee/0x170
[ 5150.978982][   T73]      __sys_sendmsg+0xcd/0x170
[ 5150.978982][   T73]      do_syscall_64+0xc6/0x1e0
[ 5150.978982][   T73] 
[ 5150.981482][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5150.981482][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5150.981482][   T73]      ipv6_find_idev+0x102/0x170
[ 5150.981482][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5150.981482][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5150.981482][   T73]      netlink_rcv_skb+0x130/0x360
[ 5150.981482][   T73]      netlink_unicast+0x449/0x710
[ 5150.981482][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5150.981482][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5150.981482][   T73]      ___sys_sendmsg+0xee/0x170
[ 5150.981482][   T73]      __sys_sendmsg+0xcd/0x170
[ 5150.981482][   T73]      do_syscall_64+0xc6/0x1e0
[ 5150.981482][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5150.981482][   T73] 
[ 5150.983388][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5150.983388][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5150.983388][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5150.983388][   T73]      ipv6_find_idev+0x102/0x170
[ 5150.983388][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5150.983388][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5150.983388][   T73]      netlink_rcv_skb+0x130/0x360
[ 5150.983388][   T73]      netlink_unicast+0x449/0x710
[ 5150.983388][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5150.983388][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5150.983388][   T73]      ___sys_sendmsg+0xee/0x170
[ 5150.983388][   T73]      __sys_sendmsg+0xcd/0x170
[ 5150.983388][   T73]      do_syscall_64+0xc6/0x1e0
[ 5150.983388][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5150.983388][   T73] 
[ 5161.223767][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5161.224233][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5161.224233][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5161.224233][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5161.224233][   T73]      fib6_nh_init+0xa22/0x1580
[ 5161.224233][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5161.224233][   T73]      ip6_route_add+0x1c/0x140
[ 5161.224233][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5161.224233][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5161.224233][   T73]      netlink_rcv_skb+0x130/0x360
[ 5161.224233][   T73]      netlink_unicast+0x449/0x710
[ 5161.224233][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5161.224233][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5161.224233][   T73]      ___sys_sendmsg+0xee/0x170
[ 5161.224233][   T73]      __sys_sendmsg+0xcd/0x170
[ 5161.224233][   T73]      do_syscall_64+0xc6/0x1e0
[ 5161.224233][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5161.224233][   T73] 
[ 5161.226346][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5161.226346][   T73]      dst_init+0x84/0x4a0
[ 5161.226346][   T73]      dst_alloc+0x97/0x150
[ 5161.226346][   T73]      ip6_dst_alloc+0x23/0x90
[ 5161.226346][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5161.226346][   T73]      ip6_pol_route+0x56f/0x840
[ 5161.226346][   T73]      fib6_rule_lookup+0x456/0x630
[ 5161.226346][   T73]      ip6_route_input+0x59c/0xa50
[ 5161.226346][   T73]      ipv6_rcv+0x397/0x810
[ 5161.226346][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5161.226346][   T73]      process_backlog+0x101/0x620
[ 5161.226346][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5161.226346][   T73]      net_rx_action+0x495/0xbe0
[ 5161.226346][   T73]      __do_softirq+0x1b5/0x7f6
[ 5161.226346][   T73] 
[ 5161.228198][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5161.228198][   T73]      netdev_get_by_index+0x5e/0x80
[ 5161.228198][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5161.228198][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5161.228198][   T73]      ip6_route_add+0x1c/0x140
[ 5161.228198][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5161.228198][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5161.228198][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5161.228198][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5161.228198][   T73]      netlink_rcv_skb+0x130/0x360
[ 5161.228198][   T73]      netlink_unicast+0x449/0x710
[ 5161.228198][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5161.228198][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5161.228198][   T73]      ___sys_sendmsg+0xee/0x170
[ 5161.228198][   T73]      __sys_sendmsg+0xcd/0x170
[ 5161.228198][   T73]      do_syscall_64+0xc6/0x1e0
[ 5161.228198][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5161.228198][   T73] 
[ 5161.230434][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5161.230434][   T73]      netdev_get_by_index+0x5e/0x80
[ 5161.230434][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5161.230434][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5161.230434][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5161.230434][   T73]      ipv6_add_addr+0x411/0x2000
[ 5161.230434][   T73]      inet6_addr_add+0x30e/0xa40
[ 5161.230434][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5161.230434][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5161.230434][   T73]      netlink_rcv_skb+0x130/0x360
[ 5161.230434][   T73]      netlink_unicast+0x449/0x710
[ 5161.230434][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5161.230434][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5161.230434][   T73]      ___sys_sendmsg+0xee/0x170
[ 5161.230434][   T73]      __sys_sendmsg+0xcd/0x170
[ 5161.230434][   T73]      do_syscall_64+0xc6/0x1e0
[ 5161.230434][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5161.230434][   T73] 
[ 5161.232679][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5161.232679][   T73]      netdev_get_by_index+0x5e/0x80
[ 5161.232679][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5161.232679][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5161.232679][   T73]      ip6_route_add+0x1c/0x140
[ 5161.232679][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5161.232679][   T73]      addrconf_add_dev+0xe2/0x170
[ 5161.232679][   T73]      inet6_addr_add+0x12f/0xa40
[ 5161.232679][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5161.232679][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5161.232679][   T73]      netlink_rcv_skb+0x130/0x360
[ 5161.232679][   T73]      netlink_unicast+0x449/0x710
[ 5161.232679][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5161.232679][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5161.232679][   T73]      ___sys_sendmsg+0xee/0x170
[ 5161.232679][   T73]      __sys_sendmsg+0xcd/0x170
[ 5161.232679][   T73]      do_syscall_64+0xc6/0x1e0
[ 5161.232679][   T73] 
[ 5161.234858][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5161.234858][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5161.234858][   T73]      ipv6_find_idev+0x102/0x170
[ 5161.234858][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5161.234858][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5161.234858][   T73]      netlink_rcv_skb+0x130/0x360
[ 5161.234858][   T73]      netlink_unicast+0x449/0x710
[ 5161.234858][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5161.234858][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5161.234858][   T73]      ___sys_sendmsg+0xee/0x170
[ 5161.234858][   T73]      __sys_sendmsg+0xcd/0x170
[ 5161.234858][   T73]      do_syscall_64+0xc6/0x1e0
[ 5161.234858][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5161.234858][   T73] 
[ 5161.236577][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5161.236577][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5161.236577][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5161.236577][   T73]      ipv6_find_idev+0x102/0x170
[ 5161.236577][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5161.236577][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5161.236577][   T73]      netlink_rcv_skb+0x130/0x360
[ 5161.236577][   T73]      netlink_unicast+0x449/0x710
[ 5161.236577][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5161.236577][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5161.236577][   T73]      ___sys_sendmsg+0xee/0x170
[ 5161.236577][   T73]      __sys_sendmsg+0xcd/0x170
[ 5161.236577][   T73]      do_syscall_64+0xc6/0x1e0
[ 5161.236577][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5161.236577][   T73] 
[ 5161.238454][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5161.238783][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5161.238783][   T73]      netdev_get_by_index+0x5e/0x80
[ 5161.238783][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5161.238783][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5161.238783][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5161.238783][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5161.238783][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5161.238783][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5161.238783][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5161.238783][   T73]      addrconf_dad_begin+0x310/0x670
[ 5161.238783][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5161.238783][   T73]      process_one_work+0x84d/0x18a0
[ 5161.238783][   T73]      worker_thread+0x587/0xd30
[ 5161.238783][   T73]      kthread+0x28a/0x350
[ 5161.238783][   T73]      ret_from_fork+0x31/0x70
[ 5161.238783][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5161.238783][   T73] 
[ 5161.240917][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5161.240917][   T73]      netdev_get_by_index+0x5e/0x80
[ 5161.240917][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5161.240917][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5161.240917][   T73]      ip6_route_add+0x1c/0x140
[ 5161.240917][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5161.240917][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5161.240917][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5161.240917][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5161.240917][   T73]      netlink_rcv_skb+0x130/0x360
[ 5161.240917][   T73]      netlink_unicast+0x449/0x710
[ 5161.240917][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5161.240917][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5161.240917][   T73]      ___sys_sendmsg+0xee/0x170
[ 5161.240917][   T73]      __sys_sendmsg+0xcd/0x170
[ 5161.240917][   T73]      do_syscall_64+0xc6/0x1e0
[ 5161.240917][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5161.240917][   T73] 
[ 5161.243149][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5161.243149][   T73]      netdev_get_by_index+0x5e/0x80
[ 5161.243149][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5161.243149][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5161.243149][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5161.243149][   T73]      ipv6_add_addr+0x411/0x2000
[ 5161.243149][   T73]      inet6_addr_add+0x30e/0xa40
[ 5161.243149][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5161.243149][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5161.243149][   T73]      netlink_rcv_skb+0x130/0x360
[ 5161.243149][   T73]      netlink_unicast+0x449/0x710
[ 5161.243149][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5161.243149][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5161.243149][   T73]      ___sys_sendmsg+0xee/0x170
[ 5161.243149][   T73]      __sys_sendmsg+0xcd/0x170
[ 5161.243149][   T73]      do_syscall_64+0xc6/0x1e0
[ 5161.243149][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5161.243149][   T73] 
[ 5161.245373][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5161.245373][   T73]      netdev_get_by_index+0x5e/0x80
[ 5161.245373][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5161.245373][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5161.245373][   T73]      ip6_route_add+0x1c/0x140
[ 5161.245373][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5161.245373][   T73]      addrconf_add_dev+0xe2/0x170
[ 5161.245373][   T73]      inet6_addr_add+0x12f/0xa40
[ 5161.245373][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5161.245373][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5161.245373][   T73]      netlink_rcv_skb+0x130/0x360
[ 5161.245373][   T73]      netlink_unicast+0x449/0x710
[ 5161.245373][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5161.245373][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5161.245373][   T73]      ___sys_sendmsg+0xee/0x170
[ 5161.245373][   T73]      __sys_sendmsg+0xcd/0x170
[ 5161.245373][   T73]      do_syscall_64+0xc6/0x1e0
[ 5161.245373][   T73] 
[ 5161.247564][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5161.247564][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5161.247564][   T73]      ipv6_find_idev+0x102/0x170
[ 5161.247564][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5161.247564][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5161.247564][   T73]      netlink_rcv_skb+0x130/0x360
[ 5161.247564][   T73]      netlink_unicast+0x449/0x710
[ 5161.247564][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5161.247564][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5161.247564][   T73]      ___sys_sendmsg+0xee/0x170
[ 5161.247564][   T73]      __sys_sendmsg+0xcd/0x170
[ 5161.247564][   T73]      do_syscall_64+0xc6/0x1e0
[ 5161.247564][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5161.247564][   T73] 
[ 5161.249281][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5161.249281][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5161.249281][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5161.249281][   T73]      ipv6_find_idev+0x102/0x170
[ 5161.249281][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5161.249281][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5161.249281][   T73]      netlink_rcv_skb+0x130/0x360
[ 5161.249281][   T73]      netlink_unicast+0x449/0x710
[ 5161.249281][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5161.249281][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5161.249281][   T73]      ___sys_sendmsg+0xee/0x170
[ 5161.249281][   T73]      __sys_sendmsg+0xcd/0x170
[ 5161.249281][   T73]      do_syscall_64+0xc6/0x1e0
[ 5161.249281][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5161.249281][   T73] 
[ 5161.251174][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5161.251493][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5161.251493][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5161.251493][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5161.251493][   T73]      fib6_nh_init+0xa22/0x1580
[ 5161.251493][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5161.251493][   T73]      ip6_route_add+0x1c/0x140
[ 5161.251493][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5161.251493][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5161.251493][   T73]      netlink_rcv_skb+0x130/0x360
[ 5161.251493][   T73]      netlink_unicast+0x449/0x710
[ 5161.251493][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5161.251493][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5161.251493][   T73]      ___sys_sendmsg+0xee/0x170
[ 5161.251493][   T73]      __sys_sendmsg+0xcd/0x170
[ 5161.251493][   T73]      do_syscall_64+0xc6/0x1e0
[ 5161.251493][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5161.251493][   T73] 
[ 5161.253744][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5161.253744][   T73]      dst_init+0x84/0x4a0
[ 5161.253744][   T73]      dst_alloc+0x97/0x150
[ 5161.253744][   T73]      ip6_dst_alloc+0x23/0x90
[ 5161.253744][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5161.253744][   T73]      ip6_pol_route+0x56f/0x840
[ 5161.253744][   T73]      fib6_rule_lookup+0x456/0x630
[ 5161.253744][   T73]      ip6_route_input+0x59c/0xa50
[ 5161.253744][   T73]      ipv6_rcv+0x397/0x810
[ 5161.253744][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5161.253744][   T73]      process_backlog+0x101/0x620
[ 5161.253744][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5161.253744][   T73]      net_rx_action+0x495/0xbe0
[ 5161.253744][   T73]      __do_softirq+0x1b5/0x7f6
[ 5161.253744][   T73] 
[ 5161.255651][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5161.255651][   T73]      netdev_get_by_index+0x5e/0x80
[ 5161.255651][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5161.255651][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5161.255651][   T73]      ip6_route_add+0x1c/0x140
[ 5161.255651][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5161.255651][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5161.255651][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5161.255651][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5161.255651][   T73]      netlink_rcv_skb+0x130/0x360
[ 5161.255651][   T73]      netlink_unicast+0x449/0x710
[ 5161.255651][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5161.255651][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5161.255651][   T73]      ___sys_sendmsg+0xee/0x170
[ 5161.255651][   T73]      __sys_sendmsg+0xcd/0x170
[ 5161.255651][   T73]      do_syscall_64+0xc6/0x1e0
[ 5161.255651][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5161.255651][   T73] 
[ 5161.258009][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5161.258009][   T73]      netdev_get_by_index+0x5e/0x80
[ 5161.258009][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5161.258009][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5161.258009][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5161.258009][   T73]      ipv6_add_addr+0x411/0x2000
[ 5161.258009][   T73]      inet6_addr_add+0x30e/0xa40
[ 5161.258009][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5161.258009][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5161.258009][   T73]      netlink_rcv_skb+0x130/0x360
[ 5161.258009][   T73]      netlink_unicast+0x449/0x710
[ 5161.258009][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5161.258009][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5161.258009][   T73]      ___sys_sendmsg+0xee/0x170
[ 5161.258009][   T73]      __sys_sendmsg+0xcd/0x170
[ 5161.258009][   T73]      do_syscall_64+0xc6/0x1e0
[ 5161.258009][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5161.258009][   T73] 
[ 5161.260386][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5161.260386][   T73]      netdev_get_by_index+0x5e/0x80
[ 5161.260386][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5161.260386][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5161.260386][   T73]      ip6_route_add+0x1c/0x140
[ 5161.260386][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5161.260386][   T73]      addrconf_add_dev+0xe2/0x170
[ 5161.260386][   T73]      inet6_addr_add+0x12f/0xa40
[ 5161.260386][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5161.260386][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5161.260386][   T73]      netlink_rcv_skb+0x130/0x360
[ 5161.260386][   T73]      netlink_unicast+0x449/0x710
[ 5161.260386][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5161.260386][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5161.260386][   T73]      ___sys_sendmsg+0xee/0x170
[ 5161.260386][   T73]      __sys_sendmsg+0xcd/0x170
[ 5161.260386][   T73]      do_syscall_64+0xc6/0x1e0
[ 5161.260386][   T73] 
[ 5161.262745][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5161.262745][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5161.262745][   T73]      ipv6_find_idev+0x102/0x170
[ 5161.262745][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5161.262745][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5161.262745][   T73]      netlink_rcv_skb+0x130/0x360
[ 5161.262745][   T73]      netlink_unicast+0x449/0x710
[ 5161.262745][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5161.262745][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5161.262745][   T73]      ___sys_sendmsg+0xee/0x170
[ 5161.262745][   T73]      __sys_sendmsg+0xcd/0x170
[ 5161.262745][   T73]      do_syscall_64+0xc6/0x1e0
[ 5161.262745][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5161.262745][   T73] 
[ 5161.264618][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5161.264618][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5161.264618][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5161.264618][   T73]      ipv6_find_idev+0x102/0x170
[ 5161.264618][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5161.264618][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5161.264618][   T73]      netlink_rcv_skb+0x130/0x360
[ 5161.264618][   T73]      netlink_unicast+0x449/0x710
[ 5161.264618][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5161.264618][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5161.264618][   T73]      ___sys_sendmsg+0xee/0x170
[ 5161.264618][   T73]      __sys_sendmsg+0xcd/0x170
[ 5161.264618][   T73]      do_syscall_64+0xc6/0x1e0
[ 5161.264618][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5161.264618][   T73] 
[ 5161.266570][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5161.267387][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5161.267387][   T73]      netdev_get_by_index+0x5e/0x80
[ 5161.267387][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5161.267387][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5161.267387][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5161.267387][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5161.267387][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5161.267387][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5161.267387][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5161.267387][   T73]      addrconf_dad_begin+0x310/0x670
[ 5161.267387][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5161.267387][   T73]      process_one_work+0x84d/0x18a0
[ 5161.267387][   T73]      worker_thread+0x587/0xd30
[ 5161.267387][   T73]      kthread+0x28a/0x350
[ 5161.267387][   T73]      ret_from_fork+0x31/0x70
[ 5161.267387][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5161.267387][   T73] 
[ 5161.269534][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5161.269534][   T73]      netdev_get_by_index+0x5e/0x80
[ 5161.269534][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5161.269534][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5161.269534][   T73]      ip6_route_add+0x1c/0x140
[ 5161.269534][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5161.269534][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5161.269534][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5161.269534][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5161.269534][   T73]      netlink_rcv_skb+0x130/0x360
[ 5161.269534][   T73]      netlink_unicast+0x449/0x710
[ 5161.269534][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5161.269534][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5161.269534][   T73]      ___sys_sendmsg+0xee/0x170
[ 5161.269534][   T73]      __sys_sendmsg+0xcd/0x170
[ 5161.269534][   T73]      do_syscall_64+0xc6/0x1e0
[ 5161.269534][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5161.269534][   T73] 
[ 5161.271768][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5161.271768][   T73]      netdev_get_by_index+0x5e/0x80
[ 5161.271768][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5161.271768][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5161.271768][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5161.271768][   T73]      ipv6_add_addr+0x411/0x2000
[ 5161.271768][   T73]      inet6_addr_add+0x30e/0xa40
[ 5161.271768][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5161.271768][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5161.271768][   T73]      netlink_rcv_skb+0x130/0x360
[ 5161.271768][   T73]      netlink_unicast+0x449/0x710
[ 5161.271768][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5161.271768][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5161.271768][   T73]      ___sys_sendmsg+0xee/0x170
[ 5161.271768][   T73]      __sys_sendmsg+0xcd/0x170
[ 5161.271768][   T73]      do_syscall_64+0xc6/0x1e0
[ 5161.271768][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5161.271768][   T73] 
[ 5161.274171][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5161.274171][   T73]      netdev_get_by_index+0x5e/0x80
[ 5161.274171][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5161.274171][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5161.274171][   T73]      ip6_route_add+0x1c/0x140
[ 5161.274171][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5161.274171][   T73]      addrconf_add_dev+0xe2/0x170
[ 5161.274171][   T73]      inet6_addr_add+0x12f/0xa40
[ 5161.274171][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5161.274171][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5161.274171][   T73]      netlink_rcv_skb+0x130/0x360
[ 5161.274171][   T73]      netlink_unicast+0x449/0x710
[ 5161.274171][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5161.274171][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5161.274171][   T73]      ___sys_sendmsg+0xee/0x170
[ 5161.274171][   T73]      __sys_sendmsg+0xcd/0x170
[ 5161.274171][   T73]      do_syscall_64+0xc6/0x1e0
[ 5161.274171][   T73] 
[ 5161.276505][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5161.276505][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5161.276505][   T73]      ipv6_find_idev+0x102/0x170
[ 5161.276505][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5161.276505][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5161.276505][   T73]      netlink_rcv_skb+0x130/0x360
[ 5161.276505][   T73]      netlink_unicast+0x449/0x710
[ 5161.276505][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5161.276505][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5161.276505][   T73]      ___sys_sendmsg+0xee/0x170
[ 5161.276505][   T73]      __sys_sendmsg+0xcd/0x170
[ 5161.276505][   T73]      do_syscall_64+0xc6/0x1e0
[ 5161.276505][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5161.276505][   T73] 
[ 5161.278380][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5161.278380][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5161.278380][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5161.278380][   T73]      ipv6_find_idev+0x102/0x170
[ 5161.278380][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5161.278380][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5161.278380][   T73]      netlink_rcv_skb+0x130/0x360
[ 5161.278380][   T73]      netlink_unicast+0x449/0x710
[ 5161.278380][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5161.278380][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5161.278380][   T73]      ___sys_sendmsg+0xee/0x170
[ 5161.278380][   T73]      __sys_sendmsg+0xcd/0x170
[ 5161.278380][   T73]      do_syscall_64+0xc6/0x1e0
[ 5161.278380][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5161.278380][   T73] 
[ 5171.343689][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5171.344166][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5171.344166][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5171.344166][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5171.344166][   T73]      fib6_nh_init+0xa22/0x1580
[ 5171.344166][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5171.344166][   T73]      ip6_route_add+0x1c/0x140
[ 5171.344166][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5171.344166][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5171.344166][   T73]      netlink_rcv_skb+0x130/0x360
[ 5171.344166][   T73]      netlink_unicast+0x449/0x710
[ 5171.344166][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5171.344166][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5171.344166][   T73]      ___sys_sendmsg+0xee/0x170
[ 5171.344166][   T73]      __sys_sendmsg+0xcd/0x170
[ 5171.344166][   T73]      do_syscall_64+0xc6/0x1e0
[ 5171.344166][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5171.344166][   T73] 
[ 5171.346117][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5171.346117][   T73]      dst_init+0x84/0x4a0
[ 5171.346117][   T73]      dst_alloc+0x97/0x150
[ 5171.346117][   T73]      ip6_dst_alloc+0x23/0x90
[ 5171.346117][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5171.346117][   T73]      ip6_pol_route+0x56f/0x840
[ 5171.346117][   T73]      fib6_rule_lookup+0x456/0x630
[ 5171.346117][   T73]      ip6_route_input+0x59c/0xa50
[ 5171.346117][   T73]      ipv6_rcv+0x397/0x810
[ 5171.346117][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5171.346117][   T73]      process_backlog+0x101/0x620
[ 5171.346117][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5171.346117][   T73]      net_rx_action+0x495/0xbe0
[ 5171.346117][   T73]      __do_softirq+0x1b5/0x7f6
[ 5171.346117][   T73] 
[ 5171.347786][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5171.347786][   T73]      netdev_get_by_index+0x5e/0x80
[ 5171.347786][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5171.347786][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5171.347786][   T73]      ip6_route_add+0x1c/0x140
[ 5171.347786][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5171.347786][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5171.347786][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5171.347786][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5171.347786][   T73]      netlink_rcv_skb+0x130/0x360
[ 5171.347786][   T73]      netlink_unicast+0x449/0x710
[ 5171.347786][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5171.347786][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5171.347786][   T73]      ___sys_sendmsg+0xee/0x170
[ 5171.347786][   T73]      __sys_sendmsg+0xcd/0x170
[ 5171.347786][   T73]      do_syscall_64+0xc6/0x1e0
[ 5171.347786][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5171.347786][   T73] 
[ 5171.349811][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5171.349811][   T73]      netdev_get_by_index+0x5e/0x80
[ 5171.349811][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5171.349811][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5171.349811][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5171.349811][   T73]      ipv6_add_addr+0x411/0x2000
[ 5171.349811][   T73]      inet6_addr_add+0x30e/0xa40
[ 5171.349811][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5171.349811][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5171.349811][   T73]      netlink_rcv_skb+0x130/0x360
[ 5171.349811][   T73]      netlink_unicast+0x449/0x710
[ 5171.349811][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5171.349811][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5171.349811][   T73]      ___sys_sendmsg+0xee/0x170
[ 5171.349811][   T73]      __sys_sendmsg+0xcd/0x170
[ 5171.349811][   T73]      do_syscall_64+0xc6/0x1e0
[ 5171.349811][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5171.349811][   T73] 
[ 5171.351848][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5171.351848][   T73]      netdev_get_by_index+0x5e/0x80
[ 5171.351848][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5171.351848][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5171.351848][   T73]      ip6_route_add+0x1c/0x140
[ 5171.351848][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5171.351848][   T73]      addrconf_add_dev+0xe2/0x170
[ 5171.351848][   T73]      inet6_addr_add+0x12f/0xa40
[ 5171.351848][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5171.351848][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5171.351848][   T73]      netlink_rcv_skb+0x130/0x360
[ 5171.351848][   T73]      netlink_unicast+0x449/0x710
[ 5171.351848][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5171.351848][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5171.351848][   T73]      ___sys_sendmsg+0xee/0x170
[ 5171.351848][   T73]      __sys_sendmsg+0xcd/0x170
[ 5171.351848][   T73]      do_syscall_64+0xc6/0x1e0
[ 5171.351848][   T73] 
[ 5171.353836][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5171.353836][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5171.353836][   T73]      ipv6_find_idev+0x102/0x170
[ 5171.353836][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5171.353836][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5171.353836][   T73]      netlink_rcv_skb+0x130/0x360
[ 5171.353836][   T73]      netlink_unicast+0x449/0x710
[ 5171.353836][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5171.353836][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5171.353836][   T73]      ___sys_sendmsg+0xee/0x170
[ 5171.353836][   T73]      __sys_sendmsg+0xcd/0x170
[ 5171.353836][   T73]      do_syscall_64+0xc6/0x1e0
[ 5171.353836][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5171.353836][   T73] 
[ 5171.355395][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5171.355395][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5171.355395][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5171.355395][   T73]      ipv6_find_idev+0x102/0x170
[ 5171.355395][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5171.355395][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5171.355395][   T73]      netlink_rcv_skb+0x130/0x360
[ 5171.355395][   T73]      netlink_unicast+0x449/0x710
[ 5171.355395][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5171.355395][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5171.355395][   T73]      ___sys_sendmsg+0xee/0x170
[ 5171.355395][   T73]      __sys_sendmsg+0xcd/0x170
[ 5171.355395][   T73]      do_syscall_64+0xc6/0x1e0
[ 5171.355395][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5171.355395][   T73] 
[ 5171.357108][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5171.357403][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5171.357403][   T73]      netdev_get_by_index+0x5e/0x80
[ 5171.357403][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5171.357403][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5171.357403][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5171.357403][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5171.357403][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5171.357403][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5171.357403][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5171.357403][   T73]      addrconf_dad_begin+0x310/0x670
[ 5171.357403][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5171.357403][   T73]      process_one_work+0x84d/0x18a0
[ 5171.357403][   T73]      worker_thread+0x587/0xd30
[ 5171.357403][   T73]      kthread+0x28a/0x350
[ 5171.357403][   T73]      ret_from_fork+0x31/0x70
[ 5171.357403][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5171.357403][   T73] 
[ 5171.359333][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5171.359333][   T73]      netdev_get_by_index+0x5e/0x80
[ 5171.359333][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5171.359333][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5171.359333][   T73]      ip6_route_add+0x1c/0x140
[ 5171.359333][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5171.359333][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5171.359333][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5171.359333][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5171.359333][   T73]      netlink_rcv_skb+0x130/0x360
[ 5171.359333][   T73]      netlink_unicast+0x449/0x710
[ 5171.359333][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5171.359333][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5171.359333][   T73]      ___sys_sendmsg+0xee/0x170
[ 5171.359333][   T73]      __sys_sendmsg+0xcd/0x170
[ 5171.359333][   T73]      do_syscall_64+0xc6/0x1e0
[ 5171.359333][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5171.359333][   T73] 
[ 5171.361365][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5171.361365][   T73]      netdev_get_by_index+0x5e/0x80
[ 5171.361365][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5171.361365][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5171.361365][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5171.361365][   T73]      ipv6_add_addr+0x411/0x2000
[ 5171.361365][   T73]      inet6_addr_add+0x30e/0xa40
[ 5171.361365][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5171.361365][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5171.361365][   T73]      netlink_rcv_skb+0x130/0x360
[ 5171.361365][   T73]      netlink_unicast+0x449/0x710
[ 5171.361365][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5171.361365][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5171.361365][   T73]      ___sys_sendmsg+0xee/0x170
[ 5171.361365][   T73]      __sys_sendmsg+0xcd/0x170
[ 5171.361365][   T73]      do_syscall_64+0xc6/0x1e0
[ 5171.361365][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5171.361365][   T73] 
[ 5171.363394][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5171.363394][   T73]      netdev_get_by_index+0x5e/0x80
[ 5171.363394][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5171.363394][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5171.363394][   T73]      ip6_route_add+0x1c/0x140
[ 5171.363394][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5171.363394][   T73]      addrconf_add_dev+0xe2/0x170
[ 5171.363394][   T73]      inet6_addr_add+0x12f/0xa40
[ 5171.363394][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5171.363394][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5171.363394][   T73]      netlink_rcv_skb+0x130/0x360
[ 5171.363394][   T73]      netlink_unicast+0x449/0x710
[ 5171.363394][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5171.363394][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5171.363394][   T73]      ___sys_sendmsg+0xee/0x170
[ 5171.363394][   T73]      __sys_sendmsg+0xcd/0x170
[ 5171.363394][   T73]      do_syscall_64+0xc6/0x1e0
[ 5171.363394][   T73] 
[ 5171.365383][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5171.365383][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5171.365383][   T73]      ipv6_find_idev+0x102/0x170
[ 5171.365383][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5171.365383][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5171.365383][   T73]      netlink_rcv_skb+0x130/0x360
[ 5171.365383][   T73]      netlink_unicast+0x449/0x710
[ 5171.365383][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5171.365383][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5171.365383][   T73]      ___sys_sendmsg+0xee/0x170
[ 5171.365383][   T73]      __sys_sendmsg+0xcd/0x170
[ 5171.365383][   T73]      do_syscall_64+0xc6/0x1e0
[ 5171.365383][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5171.365383][   T73] 
[ 5171.366945][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5171.366945][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5171.366945][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5171.366945][   T73]      ipv6_find_idev+0x102/0x170
[ 5171.366945][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5171.366945][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5171.366945][   T73]      netlink_rcv_skb+0x130/0x360
[ 5171.366945][   T73]      netlink_unicast+0x449/0x710
[ 5171.366945][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5171.366945][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5171.366945][   T73]      ___sys_sendmsg+0xee/0x170
[ 5171.366945][   T73]      __sys_sendmsg+0xcd/0x170
[ 5171.366945][   T73]      do_syscall_64+0xc6/0x1e0
[ 5171.366945][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5171.366945][   T73] 
[ 5171.368670][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5171.368969][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5171.368969][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5171.368969][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5171.368969][   T73]      fib6_nh_init+0xa22/0x1580
[ 5171.368969][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5171.368969][   T73]      ip6_route_add+0x1c/0x140
[ 5171.368969][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5171.368969][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5171.368969][   T73]      netlink_rcv_skb+0x130/0x360
[ 5171.368969][   T73]      netlink_unicast+0x449/0x710
[ 5171.368969][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5171.368969][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5171.368969][   T73]      ___sys_sendmsg+0xee/0x170
[ 5171.368969][   T73]      __sys_sendmsg+0xcd/0x170
[ 5171.368969][   T73]      do_syscall_64+0xc6/0x1e0
[ 5171.368969][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5171.368969][   T73] 
[ 5171.371003][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5171.371003][   T73]      dst_init+0x84/0x4a0
[ 5171.371003][   T73]      dst_alloc+0x97/0x150
[ 5171.371003][   T73]      ip6_dst_alloc+0x23/0x90
[ 5171.371003][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5171.371003][   T73]      ip6_pol_route+0x56f/0x840
[ 5171.371003][   T73]      fib6_rule_lookup+0x456/0x630
[ 5171.371003][   T73]      ip6_route_input+0x59c/0xa50
[ 5171.371003][   T73]      ipv6_rcv+0x397/0x810
[ 5171.371003][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5171.371003][   T73]      process_backlog+0x101/0x620
[ 5171.371003][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5171.371003][   T73]      net_rx_action+0x495/0xbe0
[ 5171.371003][   T73]      __do_softirq+0x1b5/0x7f6
[ 5171.371003][   T73] 
[ 5171.372720][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5171.372720][   T73]      netdev_get_by_index+0x5e/0x80
[ 5171.372720][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5171.372720][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5171.372720][   T73]      ip6_route_add+0x1c/0x140
[ 5171.372720][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5171.372720][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5171.372720][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5171.372720][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5171.372720][   T73]      netlink_rcv_skb+0x130/0x360
[ 5171.372720][   T73]      netlink_unicast+0x449/0x710
[ 5171.372720][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5171.372720][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5171.372720][   T73]      ___sys_sendmsg+0xee/0x170
[ 5171.372720][   T73]      __sys_sendmsg+0xcd/0x170
[ 5171.372720][   T73]      do_syscall_64+0xc6/0x1e0
[ 5171.372720][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5171.372720][   T73] 
[ 5171.374940][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5171.374940][   T73]      netdev_get_by_index+0x5e/0x80
[ 5171.374940][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5171.374940][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5171.374940][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5171.374940][   T73]      ipv6_add_addr+0x411/0x2000
[ 5171.374940][   T73]      inet6_addr_add+0x30e/0xa40
[ 5171.374940][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5171.374940][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5171.374940][   T73]      netlink_rcv_skb+0x130/0x360
[ 5171.374940][   T73]      netlink_unicast+0x449/0x710
[ 5171.374940][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5171.374940][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5171.374940][   T73]      ___sys_sendmsg+0xee/0x170
[ 5171.374940][   T73]      __sys_sendmsg+0xcd/0x170
[ 5171.374940][   T73]      do_syscall_64+0xc6/0x1e0
[ 5171.374940][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5171.374940][   T73] 
[ 5171.377090][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5171.377090][   T73]      netdev_get_by_index+0x5e/0x80
[ 5171.377090][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5171.377090][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5171.377090][   T73]      ip6_route_add+0x1c/0x140
[ 5171.377090][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5171.377090][   T73]      addrconf_add_dev+0xe2/0x170
[ 5171.377090][   T73]      inet6_addr_add+0x12f/0xa40
[ 5171.377090][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5171.377090][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5171.377090][   T73]      netlink_rcv_skb+0x130/0x360
[ 5171.377090][   T73]      netlink_unicast+0x449/0x710
[ 5171.377090][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5171.377090][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5171.377090][   T73]      ___sys_sendmsg+0xee/0x170
[ 5171.377090][   T73]      __sys_sendmsg+0xcd/0x170
[ 5171.377090][   T73]      do_syscall_64+0xc6/0x1e0
[ 5171.377090][   T73] 
[ 5171.379211][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5171.379211][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5171.379211][   T73]      ipv6_find_idev+0x102/0x170
[ 5171.379211][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5171.379211][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5171.379211][   T73]      netlink_rcv_skb+0x130/0x360
[ 5171.379211][   T73]      netlink_unicast+0x449/0x710
[ 5171.379211][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5171.379211][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5171.379211][   T73]      ___sys_sendmsg+0xee/0x170
[ 5171.379211][   T73]      __sys_sendmsg+0xcd/0x170
[ 5171.379211][   T73]      do_syscall_64+0xc6/0x1e0
[ 5171.379211][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5171.379211][   T73] 
[ 5171.380841][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5171.380841][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5171.380841][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5171.380841][   T73]      ipv6_find_idev+0x102/0x170
[ 5171.380841][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5171.380841][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5171.380841][   T73]      netlink_rcv_skb+0x130/0x360
[ 5171.380841][   T73]      netlink_unicast+0x449/0x710
[ 5171.380841][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5171.380841][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5171.380841][   T73]      ___sys_sendmsg+0xee/0x170
[ 5171.380841][   T73]      __sys_sendmsg+0xcd/0x170
[ 5171.380841][   T73]      do_syscall_64+0xc6/0x1e0
[ 5171.380841][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5171.380841][   T73] 
[ 5171.382740][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5171.383012][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5171.383012][   T73]      netdev_get_by_index+0x5e/0x80
[ 5171.383012][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5171.383012][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5171.383012][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5171.383012][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5171.383012][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5171.383012][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5171.383012][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5171.383012][   T73]      addrconf_dad_begin+0x310/0x670
[ 5171.383012][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5171.383012][   T73]      process_one_work+0x84d/0x18a0
[ 5171.383012][   T73]      worker_thread+0x587/0xd30
[ 5171.383012][   T73]      kthread+0x28a/0x350
[ 5171.383012][   T73]      ret_from_fork+0x31/0x70
[ 5171.383012][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5171.383012][   T73] 
[ 5171.385094][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5171.385094][   T73]      netdev_get_by_index+0x5e/0x80
[ 5171.385094][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5171.385094][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5171.385094][   T73]      ip6_route_add+0x1c/0x140
[ 5171.385094][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5171.385094][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5171.385094][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5171.385094][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5171.385094][   T73]      netlink_rcv_skb+0x130/0x360
[ 5171.385094][   T73]      netlink_unicast+0x449/0x710
[ 5171.385094][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5171.385094][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5171.385094][   T73]      ___sys_sendmsg+0xee/0x170
[ 5171.385094][   T73]      __sys_sendmsg+0xcd/0x170
[ 5171.385094][   T73]      do_syscall_64+0xc6/0x1e0
[ 5171.385094][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5171.385094][   T73] 
[ 5171.387258][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5171.387258][   T73]      netdev_get_by_index+0x5e/0x80
[ 5171.387258][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5171.387258][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5171.387258][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5171.387258][   T73]      ipv6_add_addr+0x411/0x2000
[ 5171.387258][   T73]      inet6_addr_add+0x30e/0xa40
[ 5171.387258][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5171.387258][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5171.387258][   T73]      netlink_rcv_skb+0x130/0x360
[ 5171.387258][   T73]      netlink_unicast+0x449/0x710
[ 5171.387258][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5171.387258][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5171.387258][   T73]      ___sys_sendmsg+0xee/0x170
[ 5171.387258][   T73]      __sys_sendmsg+0xcd/0x170
[ 5171.387258][   T73]      do_syscall_64+0xc6/0x1e0
[ 5171.387258][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5171.387258][   T73] 
[ 5171.389402][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5171.389402][   T73]      netdev_get_by_index+0x5e/0x80
[ 5171.389402][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5171.389402][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5171.389402][   T73]      ip6_route_add+0x1c/0x140
[ 5171.389402][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5171.389402][   T73]      addrconf_add_dev+0xe2/0x170
[ 5171.389402][   T73]      inet6_addr_add+0x12f/0xa40
[ 5171.389402][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5171.389402][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5171.389402][   T73]      netlink_rcv_skb+0x130/0x360
[ 5171.389402][   T73]      netlink_unicast+0x449/0x710
[ 5171.389402][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5171.389402][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5171.389402][   T73]      ___sys_sendmsg+0xee/0x170
[ 5171.389402][   T73]      __sys_sendmsg+0xcd/0x170
[ 5171.389402][   T73]      do_syscall_64+0xc6/0x1e0
[ 5171.389402][   T73] 
[ 5171.391471][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5171.391471][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5171.391471][   T73]      ipv6_find_idev+0x102/0x170
[ 5171.391471][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5171.391471][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5171.391471][   T73]      netlink_rcv_skb+0x130/0x360
[ 5171.391471][   T73]      netlink_unicast+0x449/0x710
[ 5171.391471][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5171.391471][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5171.391471][   T73]      ___sys_sendmsg+0xee/0x170
[ 5171.391471][   T73]      __sys_sendmsg+0xcd/0x170
[ 5171.391471][   T73]      do_syscall_64+0xc6/0x1e0
[ 5171.391471][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5171.391471][   T73] 
[ 5171.393225][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5171.393225][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5171.393225][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5171.393225][   T73]      ipv6_find_idev+0x102/0x170
[ 5171.393225][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5171.393225][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5171.393225][   T73]      netlink_rcv_skb+0x130/0x360
[ 5171.393225][   T73]      netlink_unicast+0x449/0x710
[ 5171.393225][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5171.393225][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5171.393225][   T73]      ___sys_sendmsg+0xee/0x170
[ 5171.393225][   T73]      __sys_sendmsg+0xcd/0x170
[ 5171.393225][   T73]      do_syscall_64+0xc6/0x1e0
[ 5171.393225][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5171.393225][   T73] 
[ 5181.535751][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5181.536204][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5181.536204][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5181.536204][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5181.536204][   T73]      fib6_nh_init+0xa22/0x1580
[ 5181.536204][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5181.536204][   T73]      ip6_route_add+0x1c/0x140
[ 5181.536204][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5181.536204][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5181.536204][   T73]      netlink_rcv_skb+0x130/0x360
[ 5181.536204][   T73]      netlink_unicast+0x449/0x710
[ 5181.536204][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5181.536204][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5181.536204][   T73]      ___sys_sendmsg+0xee/0x170
[ 5181.536204][   T73]      __sys_sendmsg+0xcd/0x170
[ 5181.536204][   T73]      do_syscall_64+0xc6/0x1e0
[ 5181.536204][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5181.536204][   T73] 
[ 5181.538169][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5181.538169][   T73]      dst_init+0x84/0x4a0
[ 5181.538169][   T73]      dst_alloc+0x97/0x150
[ 5181.538169][   T73]      ip6_dst_alloc+0x23/0x90
[ 5181.538169][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5181.538169][   T73]      ip6_pol_route+0x56f/0x840
[ 5181.538169][   T73]      fib6_rule_lookup+0x456/0x630
[ 5181.538169][   T73]      ip6_route_input+0x59c/0xa50
[ 5181.538169][   T73]      ipv6_rcv+0x397/0x810
[ 5181.538169][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5181.538169][   T73]      process_backlog+0x101/0x620
[ 5181.538169][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5181.538169][   T73]      net_rx_action+0x495/0xbe0
[ 5181.538169][   T73]      __do_softirq+0x1b5/0x7f6
[ 5181.538169][   T73] 
[ 5181.539846][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5181.539846][   T73]      netdev_get_by_index+0x5e/0x80
[ 5181.539846][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5181.539846][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5181.539846][   T73]      ip6_route_add+0x1c/0x140
[ 5181.539846][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5181.539846][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5181.539846][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5181.539846][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5181.539846][   T73]      netlink_rcv_skb+0x130/0x360
[ 5181.539846][   T73]      netlink_unicast+0x449/0x710
[ 5181.539846][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5181.539846][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5181.539846][   T73]      ___sys_sendmsg+0xee/0x170
[ 5181.539846][   T73]      __sys_sendmsg+0xcd/0x170
[ 5181.539846][   T73]      do_syscall_64+0xc6/0x1e0
[ 5181.539846][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5181.539846][   T73] 
[ 5181.541886][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5181.541886][   T73]      netdev_get_by_index+0x5e/0x80
[ 5181.541886][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5181.541886][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5181.541886][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5181.541886][   T73]      ipv6_add_addr+0x411/0x2000
[ 5181.541886][   T73]      inet6_addr_add+0x30e/0xa40
[ 5181.541886][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5181.541886][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5181.541886][   T73]      netlink_rcv_skb+0x130/0x360
[ 5181.541886][   T73]      netlink_unicast+0x449/0x710
[ 5181.541886][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5181.541886][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5181.541886][   T73]      ___sys_sendmsg+0xee/0x170
[ 5181.541886][   T73]      __sys_sendmsg+0xcd/0x170
[ 5181.541886][   T73]      do_syscall_64+0xc6/0x1e0
[ 5181.541886][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5181.541886][   T73] 
[ 5181.543926][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5181.543926][   T73]      netdev_get_by_index+0x5e/0x80
[ 5181.543926][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5181.543926][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5181.543926][   T73]      ip6_route_add+0x1c/0x140
[ 5181.543926][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5181.543926][   T73]      addrconf_add_dev+0xe2/0x170
[ 5181.543926][   T73]      inet6_addr_add+0x12f/0xa40
[ 5181.543926][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5181.543926][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5181.543926][   T73]      netlink_rcv_skb+0x130/0x360
[ 5181.543926][   T73]      netlink_unicast+0x449/0x710
[ 5181.543926][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5181.543926][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5181.543926][   T73]      ___sys_sendmsg+0xee/0x170
[ 5181.543926][   T73]      __sys_sendmsg+0xcd/0x170
[ 5181.543926][   T73]      do_syscall_64+0xc6/0x1e0
[ 5181.543926][   T73] 
[ 5181.545919][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5181.545919][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5181.545919][   T73]      ipv6_find_idev+0x102/0x170
[ 5181.545919][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5181.545919][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5181.545919][   T73]      netlink_rcv_skb+0x130/0x360
[ 5181.545919][   T73]      netlink_unicast+0x449/0x710
[ 5181.545919][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5181.545919][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5181.545919][   T73]      ___sys_sendmsg+0xee/0x170
[ 5181.545919][   T73]      __sys_sendmsg+0xcd/0x170
[ 5181.545919][   T73]      do_syscall_64+0xc6/0x1e0
[ 5181.545919][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5181.545919][   T73] 
[ 5181.547485][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5181.547485][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5181.547485][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5181.547485][   T73]      ipv6_find_idev+0x102/0x170
[ 5181.547485][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5181.547485][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5181.547485][   T73]      netlink_rcv_skb+0x130/0x360
[ 5181.547485][   T73]      netlink_unicast+0x449/0x710
[ 5181.547485][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5181.547485][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5181.547485][   T73]      ___sys_sendmsg+0xee/0x170
[ 5181.547485][   T73]      __sys_sendmsg+0xcd/0x170
[ 5181.547485][   T73]      do_syscall_64+0xc6/0x1e0
[ 5181.547485][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5181.547485][   T73] 
[ 5181.549209][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5181.549486][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5181.549486][   T73]      netdev_get_by_index+0x5e/0x80
[ 5181.549486][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5181.549486][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5181.549486][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5181.549486][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5181.549486][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5181.549486][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5181.549486][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5181.549486][   T73]      addrconf_dad_begin+0x310/0x670
[ 5181.549486][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5181.549486][   T73]      process_one_work+0x84d/0x18a0
[ 5181.549486][   T73]      worker_thread+0x587/0xd30
[ 5181.549486][   T73]      kthread+0x28a/0x350
[ 5181.549486][   T73]      ret_from_fork+0x31/0x70
[ 5181.549486][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5181.549486][   T73] 
[ 5181.551965][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5181.551965][   T73]      netdev_get_by_index+0x5e/0x80
[ 5181.551965][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5181.551965][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5181.551965][   T73]      ip6_route_add+0x1c/0x140
[ 5181.551965][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5181.551965][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5181.551965][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5181.551965][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5181.551965][   T73]      netlink_rcv_skb+0x130/0x360
[ 5181.551965][   T73]      netlink_unicast+0x449/0x710
[ 5181.551965][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5181.551965][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5181.551965][   T73]      ___sys_sendmsg+0xee/0x170
[ 5181.551965][   T73]      __sys_sendmsg+0xcd/0x170
[ 5181.551965][   T73]      do_syscall_64+0xc6/0x1e0
[ 5181.551965][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5181.551965][   T73] 
[ 5181.553994][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5181.553994][   T73]      netdev_get_by_index+0x5e/0x80
[ 5181.553994][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5181.553994][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5181.553994][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5181.553994][   T73]      ipv6_add_addr+0x411/0x2000
[ 5181.553994][   T73]      inet6_addr_add+0x30e/0xa40
[ 5181.553994][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5181.553994][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5181.553994][   T73]      netlink_rcv_skb+0x130/0x360
[ 5181.553994][   T73]      netlink_unicast+0x449/0x710
[ 5181.553994][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5181.553994][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5181.553994][   T73]      ___sys_sendmsg+0xee/0x170
[ 5181.553994][   T73]      __sys_sendmsg+0xcd/0x170
[ 5181.553994][   T73]      do_syscall_64+0xc6/0x1e0
[ 5181.553994][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5181.553994][   T73] 
[ 5181.556026][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5181.556026][   T73]      netdev_get_by_index+0x5e/0x80
[ 5181.556026][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5181.556026][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5181.556026][   T73]      ip6_route_add+0x1c/0x140
[ 5181.556026][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5181.556026][   T73]      addrconf_add_dev+0xe2/0x170
[ 5181.556026][   T73]      inet6_addr_add+0x12f/0xa40
[ 5181.556026][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5181.556026][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5181.556026][   T73]      netlink_rcv_skb+0x130/0x360
[ 5181.556026][   T73]      netlink_unicast+0x449/0x710
[ 5181.556026][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5181.556026][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5181.556026][   T73]      ___sys_sendmsg+0xee/0x170
[ 5181.556026][   T73]      __sys_sendmsg+0xcd/0x170
[ 5181.556026][   T73]      do_syscall_64+0xc6/0x1e0
[ 5181.556026][   T73] 
[ 5181.558019][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5181.558019][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5181.558019][   T73]      ipv6_find_idev+0x102/0x170
[ 5181.558019][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5181.558019][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5181.558019][   T73]      netlink_rcv_skb+0x130/0x360
[ 5181.558019][   T73]      netlink_unicast+0x449/0x710
[ 5181.558019][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5181.558019][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5181.558019][   T73]      ___sys_sendmsg+0xee/0x170
[ 5181.558019][   T73]      __sys_sendmsg+0xcd/0x170
[ 5181.558019][   T73]      do_syscall_64+0xc6/0x1e0
[ 5181.558019][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5181.558019][   T73] 
[ 5181.559586][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5181.559586][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5181.559586][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5181.559586][   T73]      ipv6_find_idev+0x102/0x170
[ 5181.559586][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5181.559586][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5181.559586][   T73]      netlink_rcv_skb+0x130/0x360
[ 5181.559586][   T73]      netlink_unicast+0x449/0x710
[ 5181.559586][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5181.559586][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5181.559586][   T73]      ___sys_sendmsg+0xee/0x170
[ 5181.559586][   T73]      __sys_sendmsg+0xcd/0x170
[ 5181.559586][   T73]      do_syscall_64+0xc6/0x1e0
[ 5181.559586][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5181.559586][   T73] 
[ 5181.561972][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5181.562247][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5181.562247][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5181.562247][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5181.562247][   T73]      fib6_nh_init+0xa22/0x1580
[ 5181.562247][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5181.562247][   T73]      ip6_route_add+0x1c/0x140
[ 5181.562247][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5181.562247][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5181.562247][   T73]      netlink_rcv_skb+0x130/0x360
[ 5181.562247][   T73]      netlink_unicast+0x449/0x710
[ 5181.562247][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5181.562247][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5181.562247][   T73]      ___sys_sendmsg+0xee/0x170
[ 5181.562247][   T73]      __sys_sendmsg+0xcd/0x170
[ 5181.562247][   T73]      do_syscall_64+0xc6/0x1e0
[ 5181.562247][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5181.562247][   T73] 
[ 5181.564234][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5181.564234][   T73]      dst_init+0x84/0x4a0
[ 5181.564234][   T73]      dst_alloc+0x97/0x150
[ 5181.564234][   T73]      ip6_dst_alloc+0x23/0x90
[ 5181.564234][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5181.564234][   T73]      ip6_pol_route+0x56f/0x840
[ 5181.564234][   T73]      fib6_rule_lookup+0x456/0x630
[ 5181.564234][   T73]      ip6_route_input+0x59c/0xa50
[ 5181.564234][   T73]      ipv6_rcv+0x397/0x810
[ 5181.564234][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5181.564234][   T73]      process_backlog+0x101/0x620
[ 5181.564234][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5181.564234][   T73]      net_rx_action+0x495/0xbe0
[ 5181.564234][   T73]      __do_softirq+0x1b5/0x7f6
[ 5181.564234][   T73] 
[ 5181.566031][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5181.566031][   T73]      netdev_get_by_index+0x5e/0x80
[ 5181.566031][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5181.566031][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5181.566031][   T73]      ip6_route_add+0x1c/0x140
[ 5181.566031][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5181.566031][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5181.566031][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5181.566031][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5181.566031][   T73]      netlink_rcv_skb+0x130/0x360
[ 5181.566031][   T73]      netlink_unicast+0x449/0x710
[ 5181.566031][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5181.566031][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5181.566031][   T73]      ___sys_sendmsg+0xee/0x170
[ 5181.566031][   T73]      __sys_sendmsg+0xcd/0x170
[ 5181.566031][   T73]      do_syscall_64+0xc6/0x1e0
[ 5181.566031][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5181.566031][   T73] 
[ 5181.568208][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5181.568208][   T73]      netdev_get_by_index+0x5e/0x80
[ 5181.568208][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5181.568208][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5181.568208][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5181.568208][   T73]      ipv6_add_addr+0x411/0x2000
[ 5181.568208][   T73]      inet6_addr_add+0x30e/0xa40
[ 5181.568208][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5181.568208][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5181.568208][   T73]      netlink_rcv_skb+0x130/0x360
[ 5181.568208][   T73]      netlink_unicast+0x449/0x710
[ 5181.568208][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5181.568208][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5181.568208][   T73]      ___sys_sendmsg+0xee/0x170
[ 5181.568208][   T73]      __sys_sendmsg+0xcd/0x170
[ 5181.568208][   T73]      do_syscall_64+0xc6/0x1e0
[ 5181.568208][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5181.568208][   T73] 
[ 5181.570372][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5181.570372][   T73]      netdev_get_by_index+0x5e/0x80
[ 5181.570372][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5181.570372][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5181.570372][   T73]      ip6_route_add+0x1c/0x140
[ 5181.570372][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5181.570372][   T73]      addrconf_add_dev+0xe2/0x170
[ 5181.570372][   T73]      inet6_addr_add+0x12f/0xa40
[ 5181.570372][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5181.570372][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5181.570372][   T73]      netlink_rcv_skb+0x130/0x360
[ 5181.570372][   T73]      netlink_unicast+0x449/0x710
[ 5181.570372][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5181.570372][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5181.570372][   T73]      ___sys_sendmsg+0xee/0x170
[ 5181.570372][   T73]      __sys_sendmsg+0xcd/0x170
[ 5181.570372][   T73]      do_syscall_64+0xc6/0x1e0
[ 5181.570372][   T73] 
[ 5181.572513][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5181.572513][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5181.572513][   T73]      ipv6_find_idev+0x102/0x170
[ 5181.572513][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5181.572513][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5181.572513][   T73]      netlink_rcv_skb+0x130/0x360
[ 5181.572513][   T73]      netlink_unicast+0x449/0x710
[ 5181.572513][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5181.572513][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5181.572513][   T73]      ___sys_sendmsg+0xee/0x170
[ 5181.572513][   T73]      __sys_sendmsg+0xcd/0x170
[ 5181.572513][   T73]      do_syscall_64+0xc6/0x1e0
[ 5181.572513][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5181.572513][   T73] 
[ 5181.574223][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5181.574223][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5181.574223][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5181.574223][   T73]      ipv6_find_idev+0x102/0x170
[ 5181.574223][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5181.574223][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5181.574223][   T73]      netlink_rcv_skb+0x130/0x360
[ 5181.574223][   T73]      netlink_unicast+0x449/0x710
[ 5181.574223][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5181.574223][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5181.574223][   T73]      ___sys_sendmsg+0xee/0x170
[ 5181.574223][   T73]      __sys_sendmsg+0xcd/0x170
[ 5181.574223][   T73]      do_syscall_64+0xc6/0x1e0
[ 5181.574223][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5181.574223][   T73] 
[ 5181.576005][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5181.576287][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5181.576287][   T73]      netdev_get_by_index+0x5e/0x80
[ 5181.576287][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5181.576287][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5181.576287][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5181.576287][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5181.576287][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5181.576287][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5181.576287][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5181.576287][   T73]      addrconf_dad_begin+0x310/0x670
[ 5181.576287][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5181.576287][   T73]      process_one_work+0x84d/0x18a0
[ 5181.576287][   T73]      worker_thread+0x587/0xd30
[ 5181.576287][   T73]      kthread+0x28a/0x350
[ 5181.576287][   T73]      ret_from_fork+0x31/0x70
[ 5181.576287][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5181.576287][   T73] 
[ 5181.578365][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5181.578365][   T73]      netdev_get_by_index+0x5e/0x80
[ 5181.578365][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5181.578365][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5181.578365][   T73]      ip6_route_add+0x1c/0x140
[ 5181.578365][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5181.578365][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5181.578365][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5181.578365][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5181.578365][   T73]      netlink_rcv_skb+0x130/0x360
[ 5181.578365][   T73]      netlink_unicast+0x449/0x710
[ 5181.578365][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5181.578365][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5181.578365][   T73]      ___sys_sendmsg+0xee/0x170
[ 5181.578365][   T73]      __sys_sendmsg+0xcd/0x170
[ 5181.578365][   T73]      do_syscall_64+0xc6/0x1e0
[ 5181.578365][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5181.578365][   T73] 
[ 5181.580549][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5181.580549][   T73]      netdev_get_by_index+0x5e/0x80
[ 5181.580549][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5181.580549][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5181.580549][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5181.580549][   T73]      ipv6_add_addr+0x411/0x2000
[ 5181.580549][   T73]      inet6_addr_add+0x30e/0xa40
[ 5181.580549][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5181.580549][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5181.580549][   T73]      netlink_rcv_skb+0x130/0x360
[ 5181.580549][   T73]      netlink_unicast+0x449/0x710
[ 5181.580549][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5181.580549][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5181.580549][   T73]      ___sys_sendmsg+0xee/0x170
[ 5181.580549][   T73]      __sys_sendmsg+0xcd/0x170
[ 5181.580549][   T73]      do_syscall_64+0xc6/0x1e0
[ 5181.580549][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5181.580549][   T73] 
[ 5181.582724][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5181.582724][   T73]      netdev_get_by_index+0x5e/0x80
[ 5181.582724][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5181.582724][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5181.582724][   T73]      ip6_route_add+0x1c/0x140
[ 5181.582724][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5181.582724][   T73]      addrconf_add_dev+0xe2/0x170
[ 5181.582724][   T73]      inet6_addr_add+0x12f/0xa40
[ 5181.582724][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5181.582724][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5181.582724][   T73]      netlink_rcv_skb+0x130/0x360
[ 5181.582724][   T73]      netlink_unicast+0x449/0x710
[ 5181.582724][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5181.582724][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5181.582724][   T73]      ___sys_sendmsg+0xee/0x170
[ 5181.582724][   T73]      __sys_sendmsg+0xcd/0x170
[ 5181.582724][   T73]      do_syscall_64+0xc6/0x1e0
[ 5181.582724][   T73] 
[ 5181.584866][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5181.584866][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5181.584866][   T73]      ipv6_find_idev+0x102/0x170
[ 5181.584866][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5181.584866][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5181.584866][   T73]      netlink_rcv_skb+0x130/0x360
[ 5181.584866][   T73]      netlink_unicast+0x449/0x710
[ 5181.584866][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5181.584866][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5181.584866][   T73]      ___sys_sendmsg+0xee/0x170
[ 5181.584866][   T73]      __sys_sendmsg+0xcd/0x170
[ 5181.584866][   T73]      do_syscall_64+0xc6/0x1e0
[ 5181.584866][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5181.584866][   T73] 
[ 5181.586496][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5181.586496][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5181.586496][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5181.586496][   T73]      ipv6_find_idev+0x102/0x170
[ 5181.586496][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5181.586496][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5181.586496][   T73]      netlink_rcv_skb+0x130/0x360
[ 5181.586496][   T73]      netlink_unicast+0x449/0x710
[ 5181.586496][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5181.586496][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5181.586496][   T73]      ___sys_sendmsg+0xee/0x170
[ 5181.586496][   T73]      __sys_sendmsg+0xcd/0x170
[ 5181.586496][   T73]      do_syscall_64+0xc6/0x1e0
[ 5181.586496][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5181.586496][   T73] 
[ 5191.799754][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5191.800217][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5191.800217][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5191.800217][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5191.800217][   T73]      fib6_nh_init+0xa22/0x1580
[ 5191.800217][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5191.800217][   T73]      ip6_route_add+0x1c/0x140
[ 5191.800217][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5191.800217][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5191.800217][   T73]      netlink_rcv_skb+0x130/0x360
[ 5191.800217][   T73]      netlink_unicast+0x449/0x710
[ 5191.800217][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5191.800217][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5191.800217][   T73]      ___sys_sendmsg+0xee/0x170
[ 5191.800217][   T73]      __sys_sendmsg+0xcd/0x170
[ 5191.800217][   T73]      do_syscall_64+0xc6/0x1e0
[ 5191.800217][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5191.800217][   T73] 
[ 5191.802170][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5191.802170][   T73]      dst_init+0x84/0x4a0
[ 5191.802170][   T73]      dst_alloc+0x97/0x150
[ 5191.802170][   T73]      ip6_dst_alloc+0x23/0x90
[ 5191.802170][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5191.802170][   T73]      ip6_pol_route+0x56f/0x840
[ 5191.802170][   T73]      fib6_rule_lookup+0x456/0x630
[ 5191.802170][   T73]      ip6_route_input+0x59c/0xa50
[ 5191.802170][   T73]      ipv6_rcv+0x397/0x810
[ 5191.802170][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5191.802170][   T73]      process_backlog+0x101/0x620
[ 5191.802170][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5191.802170][   T73]      net_rx_action+0x495/0xbe0
[ 5191.802170][   T73]      __do_softirq+0x1b5/0x7f6
[ 5191.802170][   T73] 
[ 5191.803828][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5191.803828][   T73]      netdev_get_by_index+0x5e/0x80
[ 5191.803828][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5191.803828][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5191.803828][   T73]      ip6_route_add+0x1c/0x140
[ 5191.803828][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5191.803828][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5191.803828][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5191.803828][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5191.803828][   T73]      netlink_rcv_skb+0x130/0x360
[ 5191.803828][   T73]      netlink_unicast+0x449/0x710
[ 5191.803828][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5191.803828][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5191.803828][   T73]      ___sys_sendmsg+0xee/0x170
[ 5191.803828][   T73]      __sys_sendmsg+0xcd/0x170
[ 5191.803828][   T73]      do_syscall_64+0xc6/0x1e0
[ 5191.803828][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5191.803828][   T73] 
[ 5191.805856][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5191.805856][   T73]      netdev_get_by_index+0x5e/0x80
[ 5191.805856][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5191.805856][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5191.805856][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5191.805856][   T73]      ipv6_add_addr+0x411/0x2000
[ 5191.805856][   T73]      inet6_addr_add+0x30e/0xa40
[ 5191.805856][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5191.805856][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5191.805856][   T73]      netlink_rcv_skb+0x130/0x360
[ 5191.805856][   T73]      netlink_unicast+0x449/0x710
[ 5191.805856][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5191.805856][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5191.805856][   T73]      ___sys_sendmsg+0xee/0x170
[ 5191.805856][   T73]      __sys_sendmsg+0xcd/0x170
[ 5191.805856][   T73]      do_syscall_64+0xc6/0x1e0
[ 5191.805856][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5191.805856][   T73] 
[ 5191.807872][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5191.807872][   T73]      netdev_get_by_index+0x5e/0x80
[ 5191.807872][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5191.807872][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5191.807872][   T73]      ip6_route_add+0x1c/0x140
[ 5191.807872][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5191.807872][   T73]      addrconf_add_dev+0xe2/0x170
[ 5191.807872][   T73]      inet6_addr_add+0x12f/0xa40
[ 5191.807872][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5191.807872][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5191.807872][   T73]      netlink_rcv_skb+0x130/0x360
[ 5191.807872][   T73]      netlink_unicast+0x449/0x710
[ 5191.807872][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5191.807872][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5191.807872][   T73]      ___sys_sendmsg+0xee/0x170
[ 5191.807872][   T73]      __sys_sendmsg+0xcd/0x170
[ 5191.807872][   T73]      do_syscall_64+0xc6/0x1e0
[ 5191.807872][   T73] 
[ 5191.809848][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5191.809848][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5191.809848][   T73]      ipv6_find_idev+0x102/0x170
[ 5191.809848][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5191.809848][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5191.809848][   T73]      netlink_rcv_skb+0x130/0x360
[ 5191.809848][   T73]      netlink_unicast+0x449/0x710
[ 5191.809848][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5191.809848][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5191.809848][   T73]      ___sys_sendmsg+0xee/0x170
[ 5191.809848][   T73]      __sys_sendmsg+0xcd/0x170
[ 5191.809848][   T73]      do_syscall_64+0xc6/0x1e0
[ 5191.809848][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5191.809848][   T73] 
[ 5191.811404][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5191.811404][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5191.811404][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5191.811404][   T73]      ipv6_find_idev+0x102/0x170
[ 5191.811404][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5191.811404][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5191.811404][   T73]      netlink_rcv_skb+0x130/0x360
[ 5191.811404][   T73]      netlink_unicast+0x449/0x710
[ 5191.811404][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5191.811404][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5191.811404][   T73]      ___sys_sendmsg+0xee/0x170
[ 5191.811404][   T73]      __sys_sendmsg+0xcd/0x170
[ 5191.811404][   T73]      do_syscall_64+0xc6/0x1e0
[ 5191.811404][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5191.811404][   T73] 
[ 5191.813122][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5191.813399][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5191.813399][   T73]      netdev_get_by_index+0x5e/0x80
[ 5191.813399][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5191.813399][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5191.813399][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5191.813399][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5191.813399][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5191.813399][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5191.813399][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5191.813399][   T73]      addrconf_dad_begin+0x310/0x670
[ 5191.813399][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5191.813399][   T73]      process_one_work+0x84d/0x18a0
[ 5191.813399][   T73]      worker_thread+0x587/0xd30
[ 5191.813399][   T73]      kthread+0x28a/0x350
[ 5191.813399][   T73]      ret_from_fork+0x31/0x70
[ 5191.813399][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5191.813399][   T73] 
[ 5191.815327][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5191.815327][   T73]      netdev_get_by_index+0x5e/0x80
[ 5191.815327][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5191.815327][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5191.815327][   T73]      ip6_route_add+0x1c/0x140
[ 5191.815327][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5191.815327][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5191.815327][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5191.815327][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5191.815327][   T73]      netlink_rcv_skb+0x130/0x360
[ 5191.815327][   T73]      netlink_unicast+0x449/0x710
[ 5191.815327][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5191.815327][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5191.815327][   T73]      ___sys_sendmsg+0xee/0x170
[ 5191.815327][   T73]      __sys_sendmsg+0xcd/0x170
[ 5191.815327][   T73]      do_syscall_64+0xc6/0x1e0
[ 5191.815327][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5191.815327][   T73] 
[ 5191.817343][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5191.817343][   T73]      netdev_get_by_index+0x5e/0x80
[ 5191.817343][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5191.817343][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5191.817343][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5191.817343][   T73]      ipv6_add_addr+0x411/0x2000
[ 5191.817343][   T73]      inet6_addr_add+0x30e/0xa40
[ 5191.817343][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5191.817343][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5191.817343][   T73]      netlink_rcv_skb+0x130/0x360
[ 5191.817343][   T73]      netlink_unicast+0x449/0x710
[ 5191.817343][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5191.817343][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5191.817343][   T73]      ___sys_sendmsg+0xee/0x170
[ 5191.817343][   T73]      __sys_sendmsg+0xcd/0x170
[ 5191.817343][   T73]      do_syscall_64+0xc6/0x1e0
[ 5191.817343][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5191.817343][   T73] 
[ 5191.819357][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5191.819357][   T73]      netdev_get_by_index+0x5e/0x80
[ 5191.819357][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5191.819357][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5191.819357][   T73]      ip6_route_add+0x1c/0x140
[ 5191.819357][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5191.819357][   T73]      addrconf_add_dev+0xe2/0x170
[ 5191.819357][   T73]      inet6_addr_add+0x12f/0xa40
[ 5191.819357][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5191.819357][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5191.819357][   T73]      netlink_rcv_skb+0x130/0x360
[ 5191.819357][   T73]      netlink_unicast+0x449/0x710
[ 5191.819357][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5191.819357][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5191.819357][   T73]      ___sys_sendmsg+0xee/0x170
[ 5191.819357][   T73]      __sys_sendmsg+0xcd/0x170
[ 5191.819357][   T73]      do_syscall_64+0xc6/0x1e0
[ 5191.819357][   T73] 
[ 5191.821447][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5191.821447][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5191.821447][   T73]      ipv6_find_idev+0x102/0x170
[ 5191.821447][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5191.821447][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5191.821447][   T73]      netlink_rcv_skb+0x130/0x360
[ 5191.821447][   T73]      netlink_unicast+0x449/0x710
[ 5191.821447][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5191.821447][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5191.821447][   T73]      ___sys_sendmsg+0xee/0x170
[ 5191.821447][   T73]      __sys_sendmsg+0xcd/0x170
[ 5191.821447][   T73]      do_syscall_64+0xc6/0x1e0
[ 5191.821447][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5191.821447][   T73] 
[ 5191.823007][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5191.823007][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5191.823007][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5191.823007][   T73]      ipv6_find_idev+0x102/0x170
[ 5191.823007][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5191.823007][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5191.823007][   T73]      netlink_rcv_skb+0x130/0x360
[ 5191.823007][   T73]      netlink_unicast+0x449/0x710
[ 5191.823007][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5191.823007][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5191.823007][   T73]      ___sys_sendmsg+0xee/0x170
[ 5191.823007][   T73]      __sys_sendmsg+0xcd/0x170
[ 5191.823007][   T73]      do_syscall_64+0xc6/0x1e0
[ 5191.823007][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5191.823007][   T73] 
[ 5191.827669][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5191.827964][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5191.827964][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5191.827964][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5191.827964][   T73]      fib6_nh_init+0xa22/0x1580
[ 5191.827964][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5191.827964][   T73]      ip6_route_add+0x1c/0x140
[ 5191.827964][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5191.827964][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5191.827964][   T73]      netlink_rcv_skb+0x130/0x360
[ 5191.827964][   T73]      netlink_unicast+0x449/0x710
[ 5191.827964][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5191.827964][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5191.827964][   T73]      ___sys_sendmsg+0xee/0x170
[ 5191.827964][   T73]      __sys_sendmsg+0xcd/0x170
[ 5191.827964][   T73]      do_syscall_64+0xc6/0x1e0
[ 5191.827964][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5191.827964][   T73] 
[ 5191.830047][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5191.830047][   T73]      dst_init+0x84/0x4a0
[ 5191.830047][   T73]      dst_alloc+0x97/0x150
[ 5191.830047][   T73]      ip6_dst_alloc+0x23/0x90
[ 5191.830047][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5191.830047][   T73]      ip6_pol_route+0x56f/0x840
[ 5191.830047][   T73]      fib6_rule_lookup+0x456/0x630
[ 5191.830047][   T73]      ip6_route_input+0x59c/0xa50
[ 5191.830047][   T73]      ipv6_rcv+0x397/0x810
[ 5191.830047][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5191.830047][   T73]      process_backlog+0x101/0x620
[ 5191.830047][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5191.830047][   T73]      net_rx_action+0x495/0xbe0
[ 5191.830047][   T73]      __do_softirq+0x1b5/0x7f6
[ 5191.830047][   T73] 
[ 5191.831963][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5191.831963][   T73]      netdev_get_by_index+0x5e/0x80
[ 5191.831963][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5191.831963][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5191.831963][   T73]      ip6_route_add+0x1c/0x140
[ 5191.831963][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5191.831963][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5191.831963][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5191.831963][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5191.831963][   T73]      netlink_rcv_skb+0x130/0x360
[ 5191.831963][   T73]      netlink_unicast+0x449/0x710
[ 5191.831963][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5191.831963][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5191.831963][   T73]      ___sys_sendmsg+0xee/0x170
[ 5191.831963][   T73]      __sys_sendmsg+0xcd/0x170
[ 5191.831963][   T73]      do_syscall_64+0xc6/0x1e0
[ 5191.831963][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5191.831963][   T73] 
[ 5191.834223][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5191.834223][   T73]      netdev_get_by_index+0x5e/0x80
[ 5191.834223][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5191.834223][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5191.834223][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5191.834223][   T73]      ipv6_add_addr+0x411/0x2000
[ 5191.834223][   T73]      inet6_addr_add+0x30e/0xa40
[ 5191.834223][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5191.834223][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5191.834223][   T73]      netlink_rcv_skb+0x130/0x360
[ 5191.834223][   T73]      netlink_unicast+0x449/0x710
[ 5191.834223][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5191.834223][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5191.834223][   T73]      ___sys_sendmsg+0xee/0x170
[ 5191.834223][   T73]      __sys_sendmsg+0xcd/0x170
[ 5191.834223][   T73]      do_syscall_64+0xc6/0x1e0
[ 5191.834223][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5191.834223][   T73] 
[ 5191.836484][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5191.836484][   T73]      netdev_get_by_index+0x5e/0x80
[ 5191.836484][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5191.836484][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5191.836484][   T73]      ip6_route_add+0x1c/0x140
[ 5191.836484][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5191.836484][   T73]      addrconf_add_dev+0xe2/0x170
[ 5191.836484][   T73]      inet6_addr_add+0x12f/0xa40
[ 5191.836484][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5191.836484][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5191.836484][   T73]      netlink_rcv_skb+0x130/0x360
[ 5191.836484][   T73]      netlink_unicast+0x449/0x710
[ 5191.836484][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5191.836484][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5191.836484][   T73]      ___sys_sendmsg+0xee/0x170
[ 5191.836484][   T73]      __sys_sendmsg+0xcd/0x170
[ 5191.836484][   T73]      do_syscall_64+0xc6/0x1e0
[ 5191.836484][   T73] 
[ 5191.838748][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5191.838748][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5191.838748][   T73]      ipv6_find_idev+0x102/0x170
[ 5191.838748][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5191.838748][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5191.838748][   T73]      netlink_rcv_skb+0x130/0x360
[ 5191.838748][   T73]      netlink_unicast+0x449/0x710
[ 5191.838748][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5191.838748][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5191.838748][   T73]      ___sys_sendmsg+0xee/0x170
[ 5191.838748][   T73]      __sys_sendmsg+0xcd/0x170
[ 5191.838748][   T73]      do_syscall_64+0xc6/0x1e0
[ 5191.838748][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5191.838748][   T73] 
[ 5191.840557][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5191.840557][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5191.840557][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5191.840557][   T73]      ipv6_find_idev+0x102/0x170
[ 5191.840557][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5191.840557][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5191.840557][   T73]      netlink_rcv_skb+0x130/0x360
[ 5191.840557][   T73]      netlink_unicast+0x449/0x710
[ 5191.840557][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5191.840557][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5191.840557][   T73]      ___sys_sendmsg+0xee/0x170
[ 5191.840557][   T73]      __sys_sendmsg+0xcd/0x170
[ 5191.840557][   T73]      do_syscall_64+0xc6/0x1e0
[ 5191.840557][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5191.840557][   T73] 
[ 5191.842457][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5191.843180][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5191.843180][   T73]      netdev_get_by_index+0x5e/0x80
[ 5191.843180][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5191.843180][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5191.843180][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5191.843180][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5191.843180][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5191.843180][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5191.843180][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5191.843180][   T73]      addrconf_dad_begin+0x310/0x670
[ 5191.843180][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5191.843180][   T73]      process_one_work+0x84d/0x18a0
[ 5191.843180][   T73]      worker_thread+0x587/0xd30
[ 5191.843180][   T73]      kthread+0x28a/0x350
[ 5191.843180][   T73]      ret_from_fork+0x31/0x70
[ 5191.843180][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5191.843180][   T73] 
[ 5191.845116][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5191.845116][   T73]      netdev_get_by_index+0x5e/0x80
[ 5191.845116][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5191.845116][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5191.845116][   T73]      ip6_route_add+0x1c/0x140
[ 5191.845116][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5191.845116][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5191.845116][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5191.845116][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5191.845116][   T73]      netlink_rcv_skb+0x130/0x360
[ 5191.845116][   T73]      netlink_unicast+0x449/0x710
[ 5191.845116][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5191.845116][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5191.845116][   T73]      ___sys_sendmsg+0xee/0x170
[ 5191.845116][   T73]      __sys_sendmsg+0xcd/0x170
[ 5191.845116][   T73]      do_syscall_64+0xc6/0x1e0
[ 5191.845116][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5191.845116][   T73] 
[ 5191.847260][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5191.847260][   T73]      netdev_get_by_index+0x5e/0x80
[ 5191.847260][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5191.847260][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5191.847260][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5191.847260][   T73]      ipv6_add_addr+0x411/0x2000
[ 5191.847260][   T73]      inet6_addr_add+0x30e/0xa40
[ 5191.847260][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5191.847260][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5191.847260][   T73]      netlink_rcv_skb+0x130/0x360
[ 5191.847260][   T73]      netlink_unicast+0x449/0x710
[ 5191.847260][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5191.847260][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5191.847260][   T73]      ___sys_sendmsg+0xee/0x170
[ 5191.847260][   T73]      __sys_sendmsg+0xcd/0x170
[ 5191.847260][   T73]      do_syscall_64+0xc6/0x1e0
[ 5191.847260][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5191.847260][   T73] 
[ 5191.849527][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5191.849527][   T73]      netdev_get_by_index+0x5e/0x80
[ 5191.849527][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5191.849527][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5191.849527][   T73]      ip6_route_add+0x1c/0x140
[ 5191.849527][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5191.849527][   T73]      addrconf_add_dev+0xe2/0x170
[ 5191.849527][   T73]      inet6_addr_add+0x12f/0xa40
[ 5191.849527][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5191.849527][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5191.849527][   T73]      netlink_rcv_skb+0x130/0x360
[ 5191.849527][   T73]      netlink_unicast+0x449/0x710
[ 5191.849527][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5191.849527][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5191.849527][   T73]      ___sys_sendmsg+0xee/0x170
[ 5191.849527][   T73]      __sys_sendmsg+0xcd/0x170
[ 5191.849527][   T73]      do_syscall_64+0xc6/0x1e0
[ 5191.849527][   T73] 
[ 5191.851692][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5191.851692][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5191.851692][   T73]      ipv6_find_idev+0x102/0x170
[ 5191.851692][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5191.851692][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5191.851692][   T73]      netlink_rcv_skb+0x130/0x360
[ 5191.851692][   T73]      netlink_unicast+0x449/0x710
[ 5191.851692][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5191.851692][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5191.851692][   T73]      ___sys_sendmsg+0xee/0x170
[ 5191.851692][   T73]      __sys_sendmsg+0xcd/0x170
[ 5191.851692][   T73]      do_syscall_64+0xc6/0x1e0
[ 5191.851692][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5191.851692][   T73] 
[ 5191.853505][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5191.853505][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5191.853505][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5191.853505][   T73]      ipv6_find_idev+0x102/0x170
[ 5191.853505][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5191.853505][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5191.853505][   T73]      netlink_rcv_skb+0x130/0x360
[ 5191.853505][   T73]      netlink_unicast+0x449/0x710
[ 5191.853505][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5191.853505][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5191.853505][   T73]      ___sys_sendmsg+0xee/0x170
[ 5191.853505][   T73]      __sys_sendmsg+0xcd/0x170
[ 5191.853505][   T73]      do_syscall_64+0xc6/0x1e0
[ 5191.853505][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5191.853505][   T73] 
[ 5202.095772][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5202.096251][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5202.096251][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5202.096251][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5202.096251][   T73]      fib6_nh_init+0xa22/0x1580
[ 5202.096251][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5202.096251][   T73]      ip6_route_add+0x1c/0x140
[ 5202.096251][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5202.096251][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5202.096251][   T73]      netlink_rcv_skb+0x130/0x360
[ 5202.096251][   T73]      netlink_unicast+0x449/0x710
[ 5202.096251][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5202.096251][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5202.096251][   T73]      ___sys_sendmsg+0xee/0x170
[ 5202.096251][   T73]      __sys_sendmsg+0xcd/0x170
[ 5202.096251][   T73]      do_syscall_64+0xc6/0x1e0
[ 5202.096251][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5202.096251][   T73] 
[ 5202.098178][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5202.098178][   T73]      dst_init+0x84/0x4a0
[ 5202.098178][   T73]      dst_alloc+0x97/0x150
[ 5202.098178][   T73]      ip6_dst_alloc+0x23/0x90
[ 5202.098178][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5202.098178][   T73]      ip6_pol_route+0x56f/0x840
[ 5202.098178][   T73]      fib6_rule_lookup+0x456/0x630
[ 5202.098178][   T73]      ip6_route_input+0x59c/0xa50
[ 5202.098178][   T73]      ipv6_rcv+0x397/0x810
[ 5202.098178][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5202.098178][   T73]      process_backlog+0x101/0x620
[ 5202.098178][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5202.098178][   T73]      net_rx_action+0x495/0xbe0
[ 5202.098178][   T73]      __do_softirq+0x1b5/0x7f6
[ 5202.098178][   T73] 
[ 5202.099840][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5202.099840][   T73]      netdev_get_by_index+0x5e/0x80
[ 5202.099840][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5202.099840][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5202.099840][   T73]      ip6_route_add+0x1c/0x140
[ 5202.099840][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5202.099840][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5202.099840][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5202.099840][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5202.099840][   T73]      netlink_rcv_skb+0x130/0x360
[ 5202.099840][   T73]      netlink_unicast+0x449/0x710
[ 5202.099840][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5202.099840][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5202.099840][   T73]      ___sys_sendmsg+0xee/0x170
[ 5202.099840][   T73]      __sys_sendmsg+0xcd/0x170
[ 5202.099840][   T73]      do_syscall_64+0xc6/0x1e0
[ 5202.099840][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5202.099840][   T73] 
[ 5202.101868][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5202.101868][   T73]      netdev_get_by_index+0x5e/0x80
[ 5202.101868][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5202.101868][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5202.101868][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5202.101868][   T73]      ipv6_add_addr+0x411/0x2000
[ 5202.101868][   T73]      inet6_addr_add+0x30e/0xa40
[ 5202.101868][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5202.101868][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5202.101868][   T73]      netlink_rcv_skb+0x130/0x360
[ 5202.101868][   T73]      netlink_unicast+0x449/0x710
[ 5202.101868][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5202.101868][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5202.101868][   T73]      ___sys_sendmsg+0xee/0x170
[ 5202.101868][   T73]      __sys_sendmsg+0xcd/0x170
[ 5202.101868][   T73]      do_syscall_64+0xc6/0x1e0
[ 5202.101868][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5202.101868][   T73] 
[ 5202.103890][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5202.103890][   T73]      netdev_get_by_index+0x5e/0x80
[ 5202.103890][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5202.103890][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5202.103890][   T73]      ip6_route_add+0x1c/0x140
[ 5202.103890][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5202.103890][   T73]      addrconf_add_dev+0xe2/0x170
[ 5202.103890][   T73]      inet6_addr_add+0x12f/0xa40
[ 5202.103890][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5202.103890][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5202.103890][   T73]      netlink_rcv_skb+0x130/0x360
[ 5202.103890][   T73]      netlink_unicast+0x449/0x710
[ 5202.103890][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5202.103890][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5202.103890][   T73]      ___sys_sendmsg+0xee/0x170
[ 5202.103890][   T73]      __sys_sendmsg+0xcd/0x170
[ 5202.103890][   T73]      do_syscall_64+0xc6/0x1e0
[ 5202.103890][   T73] 
[ 5202.105877][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5202.105877][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5202.105877][   T73]      ipv6_find_idev+0x102/0x170
[ 5202.105877][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5202.105877][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5202.105877][   T73]      netlink_rcv_skb+0x130/0x360
[ 5202.105877][   T73]      netlink_unicast+0x449/0x710
[ 5202.105877][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5202.105877][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5202.105877][   T73]      ___sys_sendmsg+0xee/0x170
[ 5202.105877][   T73]      __sys_sendmsg+0xcd/0x170
[ 5202.105877][   T73]      do_syscall_64+0xc6/0x1e0
[ 5202.105877][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5202.105877][   T73] 
[ 5202.107435][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5202.107435][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5202.107435][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5202.107435][   T73]      ipv6_find_idev+0x102/0x170
[ 5202.107435][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5202.107435][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5202.107435][   T73]      netlink_rcv_skb+0x130/0x360
[ 5202.107435][   T73]      netlink_unicast+0x449/0x710
[ 5202.107435][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5202.107435][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5202.107435][   T73]      ___sys_sendmsg+0xee/0x170
[ 5202.107435][   T73]      __sys_sendmsg+0xcd/0x170
[ 5202.107435][   T73]      do_syscall_64+0xc6/0x1e0
[ 5202.107435][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5202.107435][   T73] 
[ 5202.109161][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5202.109441][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5202.109441][   T73]      netdev_get_by_index+0x5e/0x80
[ 5202.109441][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5202.109441][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5202.109441][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5202.109441][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5202.109441][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5202.109441][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5202.109441][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5202.109441][   T73]      addrconf_dad_begin+0x310/0x670
[ 5202.109441][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5202.109441][   T73]      process_one_work+0x84d/0x18a0
[ 5202.109441][   T73]      worker_thread+0x587/0xd30
[ 5202.109441][   T73]      kthread+0x28a/0x350
[ 5202.109441][   T73]      ret_from_fork+0x31/0x70
[ 5202.109441][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5202.109441][   T73] 
[ 5202.111378][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5202.111378][   T73]      netdev_get_by_index+0x5e/0x80
[ 5202.111378][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5202.111378][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5202.111378][   T73]      ip6_route_add+0x1c/0x140
[ 5202.111378][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5202.111378][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5202.111378][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5202.111378][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5202.111378][   T73]      netlink_rcv_skb+0x130/0x360
[ 5202.111378][   T73]      netlink_unicast+0x449/0x710
[ 5202.111378][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5202.111378][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5202.111378][   T73]      ___sys_sendmsg+0xee/0x170
[ 5202.111378][   T73]      __sys_sendmsg+0xcd/0x170
[ 5202.111378][   T73]      do_syscall_64+0xc6/0x1e0
[ 5202.111378][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5202.111378][   T73] 
[ 5202.113390][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5202.113390][   T73]      netdev_get_by_index+0x5e/0x80
[ 5202.113390][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5202.113390][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5202.113390][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5202.113390][   T73]      ipv6_add_addr+0x411/0x2000
[ 5202.113390][   T73]      inet6_addr_add+0x30e/0xa40
[ 5202.113390][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5202.113390][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5202.113390][   T73]      netlink_rcv_skb+0x130/0x360
[ 5202.113390][   T73]      netlink_unicast+0x449/0x710
[ 5202.113390][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5202.113390][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5202.113390][   T73]      ___sys_sendmsg+0xee/0x170
[ 5202.113390][   T73]      __sys_sendmsg+0xcd/0x170
[ 5202.113390][   T73]      do_syscall_64+0xc6/0x1e0
[ 5202.113390][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5202.113390][   T73] 
[ 5202.115401][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5202.115401][   T73]      netdev_get_by_index+0x5e/0x80
[ 5202.115401][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5202.115401][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5202.115401][   T73]      ip6_route_add+0x1c/0x140
[ 5202.115401][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5202.115401][   T73]      addrconf_add_dev+0xe2/0x170
[ 5202.115401][   T73]      inet6_addr_add+0x12f/0xa40
[ 5202.115401][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5202.115401][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5202.115401][   T73]      netlink_rcv_skb+0x130/0x360
[ 5202.115401][   T73]      netlink_unicast+0x449/0x710
[ 5202.115401][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5202.115401][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5202.115401][   T73]      ___sys_sendmsg+0xee/0x170
[ 5202.115401][   T73]      __sys_sendmsg+0xcd/0x170
[ 5202.115401][   T73]      do_syscall_64+0xc6/0x1e0
[ 5202.115401][   T73] 
[ 5202.117386][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5202.117386][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5202.117386][   T73]      ipv6_find_idev+0x102/0x170
[ 5202.117386][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5202.117386][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5202.117386][   T73]      netlink_rcv_skb+0x130/0x360
[ 5202.117386][   T73]      netlink_unicast+0x449/0x710
[ 5202.117386][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5202.117386][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5202.117386][   T73]      ___sys_sendmsg+0xee/0x170
[ 5202.117386][   T73]      __sys_sendmsg+0xcd/0x170
[ 5202.117386][   T73]      do_syscall_64+0xc6/0x1e0
[ 5202.117386][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5202.117386][   T73] 
[ 5202.119062][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5202.119062][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5202.119062][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5202.119062][   T73]      ipv6_find_idev+0x102/0x170
[ 5202.119062][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5202.119062][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5202.119062][   T73]      netlink_rcv_skb+0x130/0x360
[ 5202.119062][   T73]      netlink_unicast+0x449/0x710
[ 5202.119062][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5202.119062][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5202.119062][   T73]      ___sys_sendmsg+0xee/0x170
[ 5202.119062][   T73]      __sys_sendmsg+0xcd/0x170
[ 5202.119062][   T73]      do_syscall_64+0xc6/0x1e0
[ 5202.119062][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5202.119062][   T73] 
[ 5202.120786][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5202.121069][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5202.121069][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5202.121069][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5202.121069][   T73]      fib6_nh_init+0xa22/0x1580
[ 5202.121069][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5202.121069][   T73]      ip6_route_add+0x1c/0x140
[ 5202.121069][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5202.121069][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5202.121069][   T73]      netlink_rcv_skb+0x130/0x360
[ 5202.121069][   T73]      netlink_unicast+0x449/0x710
[ 5202.121069][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5202.121069][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5202.121069][   T73]      ___sys_sendmsg+0xee/0x170
[ 5202.121069][   T73]      __sys_sendmsg+0xcd/0x170
[ 5202.121069][   T73]      do_syscall_64+0xc6/0x1e0
[ 5202.121069][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5202.121069][   T73] 
[ 5202.123159][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5202.123159][   T73]      dst_init+0x84/0x4a0
[ 5202.123159][   T73]      dst_alloc+0x97/0x150
[ 5202.123159][   T73]      ip6_dst_alloc+0x23/0x90
[ 5202.123159][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5202.123159][   T73]      ip6_pol_route+0x56f/0x840
[ 5202.123159][   T73]      fib6_rule_lookup+0x456/0x630
[ 5202.123159][   T73]      ip6_route_input+0x59c/0xa50
[ 5202.123159][   T73]      ipv6_rcv+0x397/0x810
[ 5202.123159][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5202.123159][   T73]      process_backlog+0x101/0x620
[ 5202.123159][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5202.123159][   T73]      net_rx_action+0x495/0xbe0
[ 5202.123159][   T73]      __do_softirq+0x1b5/0x7f6
[ 5202.123159][   T73] 
[ 5202.125054][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5202.125054][   T73]      netdev_get_by_index+0x5e/0x80
[ 5202.125054][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5202.125054][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5202.125054][   T73]      ip6_route_add+0x1c/0x140
[ 5202.125054][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5202.125054][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5202.125054][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5202.125054][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5202.125054][   T73]      netlink_rcv_skb+0x130/0x360
[ 5202.125054][   T73]      netlink_unicast+0x449/0x710
[ 5202.125054][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5202.125054][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5202.125054][   T73]      ___sys_sendmsg+0xee/0x170
[ 5202.125054][   T73]      __sys_sendmsg+0xcd/0x170
[ 5202.125054][   T73]      do_syscall_64+0xc6/0x1e0
[ 5202.125054][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5202.125054][   T73] 
[ 5202.127316][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5202.127316][   T73]      netdev_get_by_index+0x5e/0x80
[ 5202.127316][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5202.127316][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5202.127316][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5202.127316][   T73]      ipv6_add_addr+0x411/0x2000
[ 5202.127316][   T73]      inet6_addr_add+0x30e/0xa40
[ 5202.127316][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5202.127316][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5202.127316][   T73]      netlink_rcv_skb+0x130/0x360
[ 5202.127316][   T73]      netlink_unicast+0x449/0x710
[ 5202.127316][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5202.127316][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5202.127316][   T73]      ___sys_sendmsg+0xee/0x170
[ 5202.127316][   T73]      __sys_sendmsg+0xcd/0x170
[ 5202.127316][   T73]      do_syscall_64+0xc6/0x1e0
[ 5202.127316][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5202.127316][   T73] 
[ 5202.129575][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5202.129575][   T73]      netdev_get_by_index+0x5e/0x80
[ 5202.129575][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5202.129575][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5202.129575][   T73]      ip6_route_add+0x1c/0x140
[ 5202.129575][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5202.129575][   T73]      addrconf_add_dev+0xe2/0x170
[ 5202.129575][   T73]      inet6_addr_add+0x12f/0xa40
[ 5202.129575][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5202.129575][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5202.129575][   T73]      netlink_rcv_skb+0x130/0x360
[ 5202.129575][   T73]      netlink_unicast+0x449/0x710
[ 5202.129575][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5202.129575][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5202.129575][   T73]      ___sys_sendmsg+0xee/0x170
[ 5202.129575][   T73]      __sys_sendmsg+0xcd/0x170
[ 5202.129575][   T73]      do_syscall_64+0xc6/0x1e0
[ 5202.129575][   T73] 
[ 5202.131821][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5202.131821][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5202.131821][   T73]      ipv6_find_idev+0x102/0x170
[ 5202.131821][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5202.131821][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5202.131821][   T73]      netlink_rcv_skb+0x130/0x360
[ 5202.131821][   T73]      netlink_unicast+0x449/0x710
[ 5202.131821][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5202.131821][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5202.131821][   T73]      ___sys_sendmsg+0xee/0x170
[ 5202.131821][   T73]      __sys_sendmsg+0xcd/0x170
[ 5202.131821][   T73]      do_syscall_64+0xc6/0x1e0
[ 5202.131821][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5202.131821][   T73] 
[ 5202.133621][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5202.133621][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5202.133621][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5202.133621][   T73]      ipv6_find_idev+0x102/0x170
[ 5202.133621][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5202.133621][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5202.133621][   T73]      netlink_rcv_skb+0x130/0x360
[ 5202.133621][   T73]      netlink_unicast+0x449/0x710
[ 5202.133621][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5202.133621][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5202.133621][   T73]      ___sys_sendmsg+0xee/0x170
[ 5202.133621][   T73]      __sys_sendmsg+0xcd/0x170
[ 5202.133621][   T73]      do_syscall_64+0xc6/0x1e0
[ 5202.133621][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5202.133621][   T73] 
[ 5202.135500][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5202.135845][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5202.135845][   T73]      netdev_get_by_index+0x5e/0x80
[ 5202.135845][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5202.135845][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5202.135845][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5202.135845][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5202.135845][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5202.135845][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5202.135845][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5202.135845][   T73]      addrconf_dad_begin+0x310/0x670
[ 5202.135845][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5202.135845][   T73]      process_one_work+0x84d/0x18a0
[ 5202.135845][   T73]      worker_thread+0x587/0xd30
[ 5202.135845][   T73]      kthread+0x28a/0x350
[ 5202.135845][   T73]      ret_from_fork+0x31/0x70
[ 5202.135845][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5202.135845][   T73] 
[ 5202.137960][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5202.137960][   T73]      netdev_get_by_index+0x5e/0x80
[ 5202.137960][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5202.137960][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5202.137960][   T73]      ip6_route_add+0x1c/0x140
[ 5202.137960][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5202.137960][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5202.137960][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5202.137960][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5202.137960][   T73]      netlink_rcv_skb+0x130/0x360
[ 5202.137960][   T73]      netlink_unicast+0x449/0x710
[ 5202.137960][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5202.137960][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5202.137960][   T73]      ___sys_sendmsg+0xee/0x170
[ 5202.137960][   T73]      __sys_sendmsg+0xcd/0x170
[ 5202.137960][   T73]      do_syscall_64+0xc6/0x1e0
[ 5202.137960][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5202.137960][   T73] 
[ 5202.140217][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5202.140217][   T73]      netdev_get_by_index+0x5e/0x80
[ 5202.140217][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5202.140217][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5202.140217][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5202.140217][   T73]      ipv6_add_addr+0x411/0x2000
[ 5202.140217][   T73]      inet6_addr_add+0x30e/0xa40
[ 5202.140217][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5202.140217][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5202.140217][   T73]      netlink_rcv_skb+0x130/0x360
[ 5202.140217][   T73]      netlink_unicast+0x449/0x710
[ 5202.140217][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5202.140217][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5202.140217][   T73]      ___sys_sendmsg+0xee/0x170
[ 5202.140217][   T73]      __sys_sendmsg+0xcd/0x170
[ 5202.140217][   T73]      do_syscall_64+0xc6/0x1e0
[ 5202.140217][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5202.140217][   T73] 
[ 5202.142463][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5202.142463][   T73]      netdev_get_by_index+0x5e/0x80
[ 5202.142463][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5202.142463][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5202.142463][   T73]      ip6_route_add+0x1c/0x140
[ 5202.142463][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5202.142463][   T73]      addrconf_add_dev+0xe2/0x170
[ 5202.142463][   T73]      inet6_addr_add+0x12f/0xa40
[ 5202.142463][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5202.142463][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5202.142463][   T73]      netlink_rcv_skb+0x130/0x360
[ 5202.142463][   T73]      netlink_unicast+0x449/0x710
[ 5202.142463][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5202.142463][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5202.142463][   T73]      ___sys_sendmsg+0xee/0x170
[ 5202.142463][   T73]      __sys_sendmsg+0xcd/0x170
[ 5202.142463][   T73]      do_syscall_64+0xc6/0x1e0
[ 5202.142463][   T73] 
[ 5202.144745][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5202.144745][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5202.144745][   T73]      ipv6_find_idev+0x102/0x170
[ 5202.144745][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5202.144745][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5202.144745][   T73]      netlink_rcv_skb+0x130/0x360
[ 5202.144745][   T73]      netlink_unicast+0x449/0x710
[ 5202.144745][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5202.144745][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5202.144745][   T73]      ___sys_sendmsg+0xee/0x170
[ 5202.144745][   T73]      __sys_sendmsg+0xcd/0x170
[ 5202.144745][   T73]      do_syscall_64+0xc6/0x1e0
[ 5202.144745][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5202.144745][   T73] 
[ 5202.146487][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5202.146487][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5202.146487][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5202.146487][   T73]      ipv6_find_idev+0x102/0x170
[ 5202.146487][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5202.146487][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5202.146487][   T73]      netlink_rcv_skb+0x130/0x360
[ 5202.146487][   T73]      netlink_unicast+0x449/0x710
[ 5202.146487][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5202.146487][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5202.146487][   T73]      ___sys_sendmsg+0xee/0x170
[ 5202.146487][   T73]      __sys_sendmsg+0xcd/0x170
[ 5202.146487][   T73]      do_syscall_64+0xc6/0x1e0
[ 5202.146487][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5202.146487][   T73] 
[ 5212.383682][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5212.384150][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5212.384150][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5212.384150][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5212.384150][   T73]      fib6_nh_init+0xa22/0x1580
[ 5212.384150][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5212.384150][   T73]      ip6_route_add+0x1c/0x140
[ 5212.384150][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5212.384150][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5212.384150][   T73]      netlink_rcv_skb+0x130/0x360
[ 5212.384150][   T73]      netlink_unicast+0x449/0x710
[ 5212.384150][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5212.384150][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5212.384150][   T73]      ___sys_sendmsg+0xee/0x170
[ 5212.384150][   T73]      __sys_sendmsg+0xcd/0x170
[ 5212.384150][   T73]      do_syscall_64+0xc6/0x1e0
[ 5212.384150][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5212.384150][   T73] 
[ 5212.386057][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5212.386057][   T73]      dst_init+0x84/0x4a0
[ 5212.386057][   T73]      dst_alloc+0x97/0x150
[ 5212.386057][   T73]      ip6_dst_alloc+0x23/0x90
[ 5212.386057][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5212.386057][   T73]      ip6_pol_route+0x56f/0x840
[ 5212.386057][   T73]      fib6_rule_lookup+0x456/0x630
[ 5212.386057][   T73]      ip6_route_input+0x59c/0xa50
[ 5212.386057][   T73]      ipv6_rcv+0x397/0x810
[ 5212.386057][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5212.386057][   T73]      process_backlog+0x101/0x620
[ 5212.386057][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5212.386057][   T73]      net_rx_action+0x495/0xbe0
[ 5212.386057][   T73]      __do_softirq+0x1b5/0x7f6
[ 5212.386057][   T73] 
[ 5212.387720][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5212.387720][   T73]      netdev_get_by_index+0x5e/0x80
[ 5212.387720][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5212.387720][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5212.387720][   T73]      ip6_route_add+0x1c/0x140
[ 5212.387720][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5212.387720][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5212.387720][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5212.387720][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5212.387720][   T73]      netlink_rcv_skb+0x130/0x360
[ 5212.387720][   T73]      netlink_unicast+0x449/0x710
[ 5212.387720][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5212.387720][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5212.387720][   T73]      ___sys_sendmsg+0xee/0x170
[ 5212.387720][   T73]      __sys_sendmsg+0xcd/0x170
[ 5212.387720][   T73]      do_syscall_64+0xc6/0x1e0
[ 5212.387720][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5212.387720][   T73] 
[ 5212.389741][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5212.389741][   T73]      netdev_get_by_index+0x5e/0x80
[ 5212.389741][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5212.389741][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5212.389741][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5212.389741][   T73]      ipv6_add_addr+0x411/0x2000
[ 5212.389741][   T73]      inet6_addr_add+0x30e/0xa40
[ 5212.389741][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5212.389741][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5212.389741][   T73]      netlink_rcv_skb+0x130/0x360
[ 5212.389741][   T73]      netlink_unicast+0x449/0x710
[ 5212.389741][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5212.389741][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5212.389741][   T73]      ___sys_sendmsg+0xee/0x170
[ 5212.389741][   T73]      __sys_sendmsg+0xcd/0x170
[ 5212.389741][   T73]      do_syscall_64+0xc6/0x1e0
[ 5212.389741][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5212.389741][   T73] 
[ 5212.391769][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5212.391769][   T73]      netdev_get_by_index+0x5e/0x80
[ 5212.391769][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5212.391769][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5212.391769][   T73]      ip6_route_add+0x1c/0x140
[ 5212.391769][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5212.391769][   T73]      addrconf_add_dev+0xe2/0x170
[ 5212.391769][   T73]      inet6_addr_add+0x12f/0xa40
[ 5212.391769][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5212.391769][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5212.391769][   T73]      netlink_rcv_skb+0x130/0x360
[ 5212.391769][   T73]      netlink_unicast+0x449/0x710
[ 5212.391769][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5212.391769][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5212.391769][   T73]      ___sys_sendmsg+0xee/0x170
[ 5212.391769][   T73]      __sys_sendmsg+0xcd/0x170
[ 5212.391769][   T73]      do_syscall_64+0xc6/0x1e0
[ 5212.391769][   T73] 
[ 5212.393754][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5212.393754][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5212.393754][   T73]      ipv6_find_idev+0x102/0x170
[ 5212.393754][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5212.393754][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5212.393754][   T73]      netlink_rcv_skb+0x130/0x360
[ 5212.393754][   T73]      netlink_unicast+0x449/0x710
[ 5212.393754][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5212.393754][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5212.393754][   T73]      ___sys_sendmsg+0xee/0x170
[ 5212.393754][   T73]      __sys_sendmsg+0xcd/0x170
[ 5212.393754][   T73]      do_syscall_64+0xc6/0x1e0
[ 5212.393754][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5212.393754][   T73] 
[ 5212.395306][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5212.395306][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5212.395306][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5212.395306][   T73]      ipv6_find_idev+0x102/0x170
[ 5212.395306][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5212.395306][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5212.395306][   T73]      netlink_rcv_skb+0x130/0x360
[ 5212.395306][   T73]      netlink_unicast+0x449/0x710
[ 5212.395306][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5212.395306][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5212.395306][   T73]      ___sys_sendmsg+0xee/0x170
[ 5212.395306][   T73]      __sys_sendmsg+0xcd/0x170
[ 5212.395306][   T73]      do_syscall_64+0xc6/0x1e0
[ 5212.395306][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5212.395306][   T73] 
[ 5212.397008][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5212.397290][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5212.397290][   T73]      netdev_get_by_index+0x5e/0x80
[ 5212.397290][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5212.397290][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5212.397290][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5212.397290][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5212.397290][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5212.397290][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5212.397290][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5212.397290][   T73]      addrconf_dad_begin+0x310/0x670
[ 5212.397290][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5212.397290][   T73]      process_one_work+0x84d/0x18a0
[ 5212.397290][   T73]      worker_thread+0x587/0xd30
[ 5212.397290][   T73]      kthread+0x28a/0x350
[ 5212.397290][   T73]      ret_from_fork+0x31/0x70
[ 5212.397290][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5212.397290][   T73] 
[ 5212.399226][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5212.399226][   T73]      netdev_get_by_index+0x5e/0x80
[ 5212.399226][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5212.399226][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5212.399226][   T73]      ip6_route_add+0x1c/0x140
[ 5212.399226][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5212.399226][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5212.399226][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5212.399226][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5212.399226][   T73]      netlink_rcv_skb+0x130/0x360
[ 5212.399226][   T73]      netlink_unicast+0x449/0x710
[ 5212.399226][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5212.399226][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5212.399226][   T73]      ___sys_sendmsg+0xee/0x170
[ 5212.399226][   T73]      __sys_sendmsg+0xcd/0x170
[ 5212.399226][   T73]      do_syscall_64+0xc6/0x1e0
[ 5212.399226][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5212.399226][   T73] 
[ 5212.401246][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5212.401246][   T73]      netdev_get_by_index+0x5e/0x80
[ 5212.401246][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5212.401246][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5212.401246][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5212.401246][   T73]      ipv6_add_addr+0x411/0x2000
[ 5212.401246][   T73]      inet6_addr_add+0x30e/0xa40
[ 5212.401246][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5212.401246][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5212.401246][   T73]      netlink_rcv_skb+0x130/0x360
[ 5212.401246][   T73]      netlink_unicast+0x449/0x710
[ 5212.401246][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5212.401246][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5212.401246][   T73]      ___sys_sendmsg+0xee/0x170
[ 5212.401246][   T73]      __sys_sendmsg+0xcd/0x170
[ 5212.401246][   T73]      do_syscall_64+0xc6/0x1e0
[ 5212.401246][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5212.401246][   T73] 
[ 5212.403253][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5212.403253][   T73]      netdev_get_by_index+0x5e/0x80
[ 5212.403253][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5212.403253][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5212.403253][   T73]      ip6_route_add+0x1c/0x140
[ 5212.403253][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5212.403253][   T73]      addrconf_add_dev+0xe2/0x170
[ 5212.403253][   T73]      inet6_addr_add+0x12f/0xa40
[ 5212.403253][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5212.403253][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5212.403253][   T73]      netlink_rcv_skb+0x130/0x360
[ 5212.403253][   T73]      netlink_unicast+0x449/0x710
[ 5212.403253][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5212.403253][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5212.403253][   T73]      ___sys_sendmsg+0xee/0x170
[ 5212.403253][   T73]      __sys_sendmsg+0xcd/0x170
[ 5212.403253][   T73]      do_syscall_64+0xc6/0x1e0
[ 5212.403253][   T73] 
[ 5212.405239][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5212.405239][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5212.405239][   T73]      ipv6_find_idev+0x102/0x170
[ 5212.405239][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5212.405239][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5212.405239][   T73]      netlink_rcv_skb+0x130/0x360
[ 5212.405239][   T73]      netlink_unicast+0x449/0x710
[ 5212.405239][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5212.405239][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5212.405239][   T73]      ___sys_sendmsg+0xee/0x170
[ 5212.405239][   T73]      __sys_sendmsg+0xcd/0x170
[ 5212.405239][   T73]      do_syscall_64+0xc6/0x1e0
[ 5212.405239][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5212.405239][   T73] 
[ 5212.406783][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5212.406783][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5212.406783][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5212.406783][   T73]      ipv6_find_idev+0x102/0x170
[ 5212.406783][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5212.406783][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5212.406783][   T73]      netlink_rcv_skb+0x130/0x360
[ 5212.406783][   T73]      netlink_unicast+0x449/0x710
[ 5212.406783][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5212.406783][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5212.406783][   T73]      ___sys_sendmsg+0xee/0x170
[ 5212.406783][   T73]      __sys_sendmsg+0xcd/0x170
[ 5212.406783][   T73]      do_syscall_64+0xc6/0x1e0
[ 5212.406783][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5212.406783][   T73] 
[ 5212.408479][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5212.408788][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5212.408788][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5212.408788][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5212.408788][   T73]      fib6_nh_init+0xa22/0x1580
[ 5212.408788][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5212.408788][   T73]      ip6_route_add+0x1c/0x140
[ 5212.408788][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5212.408788][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5212.408788][   T73]      netlink_rcv_skb+0x130/0x360
[ 5212.408788][   T73]      netlink_unicast+0x449/0x710
[ 5212.408788][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5212.408788][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5212.408788][   T73]      ___sys_sendmsg+0xee/0x170
[ 5212.408788][   T73]      __sys_sendmsg+0xcd/0x170
[ 5212.408788][   T73]      do_syscall_64+0xc6/0x1e0
[ 5212.408788][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5212.408788][   T73] 
[ 5212.410751][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5212.410751][   T73]      dst_init+0x84/0x4a0
[ 5212.410751][   T73]      dst_alloc+0x97/0x150
[ 5212.410751][   T73]      ip6_dst_alloc+0x23/0x90
[ 5212.410751][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5212.410751][   T73]      ip6_pol_route+0x56f/0x840
[ 5212.410751][   T73]      fib6_rule_lookup+0x456/0x630
[ 5212.410751][   T73]      ip6_route_input+0x59c/0xa50
[ 5212.410751][   T73]      ipv6_rcv+0x397/0x810
[ 5212.410751][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5212.410751][   T73]      process_backlog+0x101/0x620
[ 5212.410751][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5212.410751][   T73]      net_rx_action+0x495/0xbe0
[ 5212.410751][   T73]      __do_softirq+0x1b5/0x7f6
[ 5212.410751][   T73] 
[ 5212.412526][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5212.412526][   T73]      netdev_get_by_index+0x5e/0x80
[ 5212.412526][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5212.412526][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5212.412526][   T73]      ip6_route_add+0x1c/0x140
[ 5212.412526][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5212.412526][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5212.412526][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5212.412526][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5212.412526][   T73]      netlink_rcv_skb+0x130/0x360
[ 5212.412526][   T73]      netlink_unicast+0x449/0x710
[ 5212.412526][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5212.412526][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5212.412526][   T73]      ___sys_sendmsg+0xee/0x170
[ 5212.412526][   T73]      __sys_sendmsg+0xcd/0x170
[ 5212.412526][   T73]      do_syscall_64+0xc6/0x1e0
[ 5212.412526][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5212.412526][   T73] 
[ 5212.414650][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5212.414650][   T73]      netdev_get_by_index+0x5e/0x80
[ 5212.414650][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5212.414650][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5212.414650][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5212.414650][   T73]      ipv6_add_addr+0x411/0x2000
[ 5212.414650][   T73]      inet6_addr_add+0x30e/0xa40
[ 5212.414650][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5212.414650][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5212.414650][   T73]      netlink_rcv_skb+0x130/0x360
[ 5212.414650][   T73]      netlink_unicast+0x449/0x710
[ 5212.414650][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5212.414650][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5212.414650][   T73]      ___sys_sendmsg+0xee/0x170
[ 5212.414650][   T73]      __sys_sendmsg+0xcd/0x170
[ 5212.414650][   T73]      do_syscall_64+0xc6/0x1e0
[ 5212.414650][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5212.414650][   T73] 
[ 5212.416773][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5212.416773][   T73]      netdev_get_by_index+0x5e/0x80
[ 5212.416773][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5212.416773][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5212.416773][   T73]      ip6_route_add+0x1c/0x140
[ 5212.416773][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5212.416773][   T73]      addrconf_add_dev+0xe2/0x170
[ 5212.416773][   T73]      inet6_addr_add+0x12f/0xa40
[ 5212.416773][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5212.416773][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5212.416773][   T73]      netlink_rcv_skb+0x130/0x360
[ 5212.416773][   T73]      netlink_unicast+0x449/0x710
[ 5212.416773][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5212.416773][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5212.416773][   T73]      ___sys_sendmsg+0xee/0x170
[ 5212.416773][   T73]      __sys_sendmsg+0xcd/0x170
[ 5212.416773][   T73]      do_syscall_64+0xc6/0x1e0
[ 5212.416773][   T73] 
[ 5212.418899][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5212.418899][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5212.418899][   T73]      ipv6_find_idev+0x102/0x170
[ 5212.418899][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5212.418899][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5212.418899][   T73]      netlink_rcv_skb+0x130/0x360
[ 5212.418899][   T73]      netlink_unicast+0x449/0x710
[ 5212.418899][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5212.418899][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5212.418899][   T73]      ___sys_sendmsg+0xee/0x170
[ 5212.418899][   T73]      __sys_sendmsg+0xcd/0x170
[ 5212.418899][   T73]      do_syscall_64+0xc6/0x1e0
[ 5212.418899][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5212.418899][   T73] 
[ 5212.420518][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5212.420518][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5212.420518][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5212.420518][   T73]      ipv6_find_idev+0x102/0x170
[ 5212.420518][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5212.420518][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5212.420518][   T73]      netlink_rcv_skb+0x130/0x360
[ 5212.420518][   T73]      netlink_unicast+0x449/0x710
[ 5212.420518][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5212.420518][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5212.420518][   T73]      ___sys_sendmsg+0xee/0x170
[ 5212.420518][   T73]      __sys_sendmsg+0xcd/0x170
[ 5212.420518][   T73]      do_syscall_64+0xc6/0x1e0
[ 5212.420518][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5212.420518][   T73] 
[ 5212.422358][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5212.422629][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5212.422629][   T73]      netdev_get_by_index+0x5e/0x80
[ 5212.422629][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5212.422629][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5212.422629][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5212.422629][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5212.422629][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5212.422629][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5212.422629][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5212.422629][   T73]      addrconf_dad_begin+0x310/0x670
[ 5212.422629][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5212.422629][   T73]      process_one_work+0x84d/0x18a0
[ 5212.422629][   T73]      worker_thread+0x587/0xd30
[ 5212.422629][   T73]      kthread+0x28a/0x350
[ 5212.422629][   T73]      ret_from_fork+0x31/0x70
[ 5212.422629][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5212.422629][   T73] 
[ 5212.424697][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5212.424697][   T73]      netdev_get_by_index+0x5e/0x80
[ 5212.424697][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5212.424697][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5212.424697][   T73]      ip6_route_add+0x1c/0x140
[ 5212.424697][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5212.424697][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5212.424697][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5212.424697][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5212.424697][   T73]      netlink_rcv_skb+0x130/0x360
[ 5212.424697][   T73]      netlink_unicast+0x449/0x710
[ 5212.424697][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5212.424697][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5212.424697][   T73]      ___sys_sendmsg+0xee/0x170
[ 5212.424697][   T73]      __sys_sendmsg+0xcd/0x170
[ 5212.424697][   T73]      do_syscall_64+0xc6/0x1e0
[ 5212.424697][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5212.424697][   T73] 
[ 5212.426942][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5212.426942][   T73]      netdev_get_by_index+0x5e/0x80
[ 5212.426942][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5212.426942][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5212.426942][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5212.426942][   T73]      ipv6_add_addr+0x411/0x2000
[ 5212.426942][   T73]      inet6_addr_add+0x30e/0xa40
[ 5212.426942][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5212.426942][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5212.426942][   T73]      netlink_rcv_skb+0x130/0x360
[ 5212.426942][   T73]      netlink_unicast+0x449/0x710
[ 5212.426942][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5212.426942][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5212.426942][   T73]      ___sys_sendmsg+0xee/0x170
[ 5212.426942][   T73]      __sys_sendmsg+0xcd/0x170
[ 5212.426942][   T73]      do_syscall_64+0xc6/0x1e0
[ 5212.426942][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5212.426942][   T73] 
[ 5212.429127][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5212.429127][   T73]      netdev_get_by_index+0x5e/0x80
[ 5212.429127][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5212.429127][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5212.429127][   T73]      ip6_route_add+0x1c/0x140
[ 5212.429127][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5212.429127][   T73]      addrconf_add_dev+0xe2/0x170
[ 5212.429127][   T73]      inet6_addr_add+0x12f/0xa40
[ 5212.429127][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5212.429127][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5212.429127][   T73]      netlink_rcv_skb+0x130/0x360
[ 5212.429127][   T73]      netlink_unicast+0x449/0x710
[ 5212.429127][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5212.429127][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5212.429127][   T73]      ___sys_sendmsg+0xee/0x170
[ 5212.429127][   T73]      __sys_sendmsg+0xcd/0x170
[ 5212.429127][   T73]      do_syscall_64+0xc6/0x1e0
[ 5212.429127][   T73] 
[ 5212.431414][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5212.431414][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5212.431414][   T73]      ipv6_find_idev+0x102/0x170
[ 5212.431414][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5212.431414][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5212.431414][   T73]      netlink_rcv_skb+0x130/0x360
[ 5212.431414][   T73]      netlink_unicast+0x449/0x710
[ 5212.431414][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5212.431414][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5212.431414][   T73]      ___sys_sendmsg+0xee/0x170
[ 5212.431414][   T73]      __sys_sendmsg+0xcd/0x170
[ 5212.431414][   T73]      do_syscall_64+0xc6/0x1e0
[ 5212.431414][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5212.431414][   T73] 
[ 5212.433148][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5212.433148][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5212.433148][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5212.433148][   T73]      ipv6_find_idev+0x102/0x170
[ 5212.433148][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5212.433148][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5212.433148][   T73]      netlink_rcv_skb+0x130/0x360
[ 5212.433148][   T73]      netlink_unicast+0x449/0x710
[ 5212.433148][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5212.433148][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5212.433148][   T73]      ___sys_sendmsg+0xee/0x170
[ 5212.433148][   T73]      __sys_sendmsg+0xcd/0x170
[ 5212.433148][   T73]      do_syscall_64+0xc6/0x1e0
[ 5212.433148][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5212.433148][   T73] 
[ 5222.439759][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5222.440208][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5222.440208][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5222.440208][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5222.440208][   T73]      fib6_nh_init+0xa22/0x1580
[ 5222.440208][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5222.440208][   T73]      ip6_route_add+0x1c/0x140
[ 5222.440208][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5222.440208][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5222.440208][   T73]      netlink_rcv_skb+0x130/0x360
[ 5222.440208][   T73]      netlink_unicast+0x449/0x710
[ 5222.440208][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5222.440208][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5222.440208][   T73]      ___sys_sendmsg+0xee/0x170
[ 5222.440208][   T73]      __sys_sendmsg+0xcd/0x170
[ 5222.440208][   T73]      do_syscall_64+0xc6/0x1e0
[ 5222.440208][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5222.440208][   T73] 
[ 5222.442139][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5222.442139][   T73]      dst_init+0x84/0x4a0
[ 5222.442139][   T73]      dst_alloc+0x97/0x150
[ 5222.442139][   T73]      ip6_dst_alloc+0x23/0x90
[ 5222.442139][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5222.442139][   T73]      ip6_pol_route+0x56f/0x840
[ 5222.442139][   T73]      fib6_rule_lookup+0x456/0x630
[ 5222.442139][   T73]      ip6_route_input+0x59c/0xa50
[ 5222.442139][   T73]      ipv6_rcv+0x397/0x810
[ 5222.442139][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5222.442139][   T73]      process_backlog+0x101/0x620
[ 5222.442139][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5222.442139][   T73]      net_rx_action+0x495/0xbe0
[ 5222.442139][   T73]      __do_softirq+0x1b5/0x7f6
[ 5222.442139][   T73] 
[ 5222.443795][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5222.443795][   T73]      netdev_get_by_index+0x5e/0x80
[ 5222.443795][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5222.443795][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5222.443795][   T73]      ip6_route_add+0x1c/0x140
[ 5222.443795][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5222.443795][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5222.443795][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5222.443795][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5222.443795][   T73]      netlink_rcv_skb+0x130/0x360
[ 5222.443795][   T73]      netlink_unicast+0x449/0x710
[ 5222.443795][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5222.443795][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5222.443795][   T73]      ___sys_sendmsg+0xee/0x170
[ 5222.443795][   T73]      __sys_sendmsg+0xcd/0x170
[ 5222.443795][   T73]      do_syscall_64+0xc6/0x1e0
[ 5222.443795][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5222.443795][   T73] 
[ 5222.445801][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5222.445801][   T73]      netdev_get_by_index+0x5e/0x80
[ 5222.445801][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5222.445801][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5222.445801][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5222.445801][   T73]      ipv6_add_addr+0x411/0x2000
[ 5222.445801][   T73]      inet6_addr_add+0x30e/0xa40
[ 5222.445801][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5222.445801][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5222.445801][   T73]      netlink_rcv_skb+0x130/0x360
[ 5222.445801][   T73]      netlink_unicast+0x449/0x710
[ 5222.445801][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5222.445801][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5222.445801][   T73]      ___sys_sendmsg+0xee/0x170
[ 5222.445801][   T73]      __sys_sendmsg+0xcd/0x170
[ 5222.445801][   T73]      do_syscall_64+0xc6/0x1e0
[ 5222.445801][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5222.445801][   T73] 
[ 5222.447822][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5222.447822][   T73]      netdev_get_by_index+0x5e/0x80
[ 5222.447822][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5222.447822][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5222.447822][   T73]      ip6_route_add+0x1c/0x140
[ 5222.447822][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5222.447822][   T73]      addrconf_add_dev+0xe2/0x170
[ 5222.447822][   T73]      inet6_addr_add+0x12f/0xa40
[ 5222.447822][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5222.447822][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5222.447822][   T73]      netlink_rcv_skb+0x130/0x360
[ 5222.447822][   T73]      netlink_unicast+0x449/0x710
[ 5222.447822][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5222.447822][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5222.447822][   T73]      ___sys_sendmsg+0xee/0x170
[ 5222.447822][   T73]      __sys_sendmsg+0xcd/0x170
[ 5222.447822][   T73]      do_syscall_64+0xc6/0x1e0
[ 5222.447822][   T73] 
[ 5222.449793][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5222.449793][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5222.449793][   T73]      ipv6_find_idev+0x102/0x170
[ 5222.449793][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5222.449793][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5222.449793][   T73]      netlink_rcv_skb+0x130/0x360
[ 5222.449793][   T73]      netlink_unicast+0x449/0x710
[ 5222.449793][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5222.449793][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5222.449793][   T73]      ___sys_sendmsg+0xee/0x170
[ 5222.449793][   T73]      __sys_sendmsg+0xcd/0x170
[ 5222.449793][   T73]      do_syscall_64+0xc6/0x1e0
[ 5222.449793][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5222.449793][   T73] 
[ 5222.451348][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5222.451348][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5222.451348][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5222.451348][   T73]      ipv6_find_idev+0x102/0x170
[ 5222.451348][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5222.451348][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5222.451348][   T73]      netlink_rcv_skb+0x130/0x360
[ 5222.451348][   T73]      netlink_unicast+0x449/0x710
[ 5222.451348][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5222.451348][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5222.451348][   T73]      ___sys_sendmsg+0xee/0x170
[ 5222.451348][   T73]      __sys_sendmsg+0xcd/0x170
[ 5222.451348][   T73]      do_syscall_64+0xc6/0x1e0
[ 5222.451348][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5222.451348][   T73] 
[ 5222.453032][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5222.453313][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5222.453313][   T73]      netdev_get_by_index+0x5e/0x80
[ 5222.453313][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5222.453313][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5222.453313][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5222.453313][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5222.453313][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5222.453313][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5222.453313][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5222.453313][   T73]      addrconf_dad_begin+0x310/0x670
[ 5222.453313][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5222.453313][   T73]      process_one_work+0x84d/0x18a0
[ 5222.453313][   T73]      worker_thread+0x587/0xd30
[ 5222.453313][   T73]      kthread+0x28a/0x350
[ 5222.453313][   T73]      ret_from_fork+0x31/0x70
[ 5222.453313][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5222.453313][   T73] 
[ 5222.455215][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5222.455215][   T73]      netdev_get_by_index+0x5e/0x80
[ 5222.455215][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5222.455215][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5222.455215][   T73]      ip6_route_add+0x1c/0x140
[ 5222.455215][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5222.455215][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5222.455215][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5222.455215][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5222.455215][   T73]      netlink_rcv_skb+0x130/0x360
[ 5222.455215][   T73]      netlink_unicast+0x449/0x710
[ 5222.455215][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5222.455215][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5222.455215][   T73]      ___sys_sendmsg+0xee/0x170
[ 5222.455215][   T73]      __sys_sendmsg+0xcd/0x170
[ 5222.455215][   T73]      do_syscall_64+0xc6/0x1e0
[ 5222.455215][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5222.455215][   T73] 
[ 5222.457220][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5222.457220][   T73]      netdev_get_by_index+0x5e/0x80
[ 5222.457220][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5222.457220][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5222.457220][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5222.457220][   T73]      ipv6_add_addr+0x411/0x2000
[ 5222.457220][   T73]      inet6_addr_add+0x30e/0xa40
[ 5222.457220][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5222.457220][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5222.457220][   T73]      netlink_rcv_skb+0x130/0x360
[ 5222.457220][   T73]      netlink_unicast+0x449/0x710
[ 5222.457220][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5222.457220][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5222.457220][   T73]      ___sys_sendmsg+0xee/0x170
[ 5222.457220][   T73]      __sys_sendmsg+0xcd/0x170
[ 5222.457220][   T73]      do_syscall_64+0xc6/0x1e0
[ 5222.457220][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5222.457220][   T73] 
[ 5222.459213][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5222.459213][   T73]      netdev_get_by_index+0x5e/0x80
[ 5222.459213][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5222.459213][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5222.459213][   T73]      ip6_route_add+0x1c/0x140
[ 5222.459213][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5222.459213][   T73]      addrconf_add_dev+0xe2/0x170
[ 5222.459213][   T73]      inet6_addr_add+0x12f/0xa40
[ 5222.459213][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5222.459213][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5222.459213][   T73]      netlink_rcv_skb+0x130/0x360
[ 5222.459213][   T73]      netlink_unicast+0x449/0x710
[ 5222.459213][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5222.459213][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5222.459213][   T73]      ___sys_sendmsg+0xee/0x170
[ 5222.459213][   T73]      __sys_sendmsg+0xcd/0x170
[ 5222.459213][   T73]      do_syscall_64+0xc6/0x1e0
[ 5222.459213][   T73] 
[ 5222.461172][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5222.461172][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5222.461172][   T73]      ipv6_find_idev+0x102/0x170
[ 5222.461172][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5222.461172][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5222.461172][   T73]      netlink_rcv_skb+0x130/0x360
[ 5222.461172][   T73]      netlink_unicast+0x449/0x710
[ 5222.461172][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5222.461172][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5222.461172][   T73]      ___sys_sendmsg+0xee/0x170
[ 5222.461172][   T73]      __sys_sendmsg+0xcd/0x170
[ 5222.461172][   T73]      do_syscall_64+0xc6/0x1e0
[ 5222.461172][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5222.461172][   T73] 
[ 5222.462712][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5222.462712][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5222.462712][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5222.462712][   T73]      ipv6_find_idev+0x102/0x170
[ 5222.462712][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5222.462712][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5222.462712][   T73]      netlink_rcv_skb+0x130/0x360
[ 5222.462712][   T73]      netlink_unicast+0x449/0x710
[ 5222.462712][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5222.462712][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5222.462712][   T73]      ___sys_sendmsg+0xee/0x170
[ 5222.462712][   T73]      __sys_sendmsg+0xcd/0x170
[ 5222.462712][   T73]      do_syscall_64+0xc6/0x1e0
[ 5222.462712][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5222.462712][   T73] 
[ 5222.464376][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5222.464642][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5222.464642][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5222.464642][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5222.464642][   T73]      fib6_nh_init+0xa22/0x1580
[ 5222.464642][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5222.464642][   T73]      ip6_route_add+0x1c/0x140
[ 5222.464642][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5222.464642][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5222.464642][   T73]      netlink_rcv_skb+0x130/0x360
[ 5222.464642][   T73]      netlink_unicast+0x449/0x710
[ 5222.464642][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5222.464642][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5222.464642][   T73]      ___sys_sendmsg+0xee/0x170
[ 5222.464642][   T73]      __sys_sendmsg+0xcd/0x170
[ 5222.464642][   T73]      do_syscall_64+0xc6/0x1e0
[ 5222.464642][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5222.464642][   T73] 
[ 5222.466804][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5222.466804][   T73]      dst_init+0x84/0x4a0
[ 5222.466804][   T73]      dst_alloc+0x97/0x150
[ 5222.466804][   T73]      ip6_dst_alloc+0x23/0x90
[ 5222.466804][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5222.466804][   T73]      ip6_pol_route+0x56f/0x840
[ 5222.466804][   T73]      fib6_rule_lookup+0x456/0x630
[ 5222.466804][   T73]      ip6_route_input+0x59c/0xa50
[ 5222.466804][   T73]      ipv6_rcv+0x397/0x810
[ 5222.466804][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5222.466804][   T73]      process_backlog+0x101/0x620
[ 5222.466804][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5222.466804][   T73]      net_rx_action+0x495/0xbe0
[ 5222.466804][   T73]      __do_softirq+0x1b5/0x7f6
[ 5222.466804][   T73] 
[ 5222.468618][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5222.468618][   T73]      netdev_get_by_index+0x5e/0x80
[ 5222.468618][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5222.468618][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5222.468618][   T73]      ip6_route_add+0x1c/0x140
[ 5222.468618][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5222.468618][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5222.468618][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5222.468618][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5222.468618][   T73]      netlink_rcv_skb+0x130/0x360
[ 5222.468618][   T73]      netlink_unicast+0x449/0x710
[ 5222.468618][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5222.468618][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5222.468618][   T73]      ___sys_sendmsg+0xee/0x170
[ 5222.468618][   T73]      __sys_sendmsg+0xcd/0x170
[ 5222.468618][   T73]      do_syscall_64+0xc6/0x1e0
[ 5222.468618][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5222.468618][   T73] 
[ 5222.470867][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5222.470867][   T73]      netdev_get_by_index+0x5e/0x80
[ 5222.470867][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5222.470867][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5222.470867][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5222.470867][   T73]      ipv6_add_addr+0x411/0x2000
[ 5222.470867][   T73]      inet6_addr_add+0x30e/0xa40
[ 5222.470867][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5222.470867][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5222.470867][   T73]      netlink_rcv_skb+0x130/0x360
[ 5222.470867][   T73]      netlink_unicast+0x449/0x710
[ 5222.470867][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5222.470867][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5222.470867][   T73]      ___sys_sendmsg+0xee/0x170
[ 5222.470867][   T73]      __sys_sendmsg+0xcd/0x170
[ 5222.470867][   T73]      do_syscall_64+0xc6/0x1e0
[ 5222.470867][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5222.470867][   T73] 
[ 5222.473101][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5222.473101][   T73]      netdev_get_by_index+0x5e/0x80
[ 5222.473101][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5222.473101][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5222.473101][   T73]      ip6_route_add+0x1c/0x140
[ 5222.473101][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5222.473101][   T73]      addrconf_add_dev+0xe2/0x170
[ 5222.473101][   T73]      inet6_addr_add+0x12f/0xa40
[ 5222.473101][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5222.473101][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5222.473101][   T73]      netlink_rcv_skb+0x130/0x360
[ 5222.473101][   T73]      netlink_unicast+0x449/0x710
[ 5222.473101][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5222.473101][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5222.473101][   T73]      ___sys_sendmsg+0xee/0x170
[ 5222.473101][   T73]      __sys_sendmsg+0xcd/0x170
[ 5222.473101][   T73]      do_syscall_64+0xc6/0x1e0
[ 5222.473101][   T73] 
[ 5222.475171][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5222.475171][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5222.475171][   T73]      ipv6_find_idev+0x102/0x170
[ 5222.475171][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5222.475171][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5222.475171][   T73]      netlink_rcv_skb+0x130/0x360
[ 5222.475171][   T73]      netlink_unicast+0x449/0x710
[ 5222.475171][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5222.475171][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5222.475171][   T73]      ___sys_sendmsg+0xee/0x170
[ 5222.475171][   T73]      __sys_sendmsg+0xcd/0x170
[ 5222.475171][   T73]      do_syscall_64+0xc6/0x1e0
[ 5222.475171][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5222.475171][   T73] 
[ 5222.476817][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5222.476817][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5222.476817][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5222.476817][   T73]      ipv6_find_idev+0x102/0x170
[ 5222.476817][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5222.476817][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5222.476817][   T73]      netlink_rcv_skb+0x130/0x360
[ 5222.476817][   T73]      netlink_unicast+0x449/0x710
[ 5222.476817][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5222.476817][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5222.476817][   T73]      ___sys_sendmsg+0xee/0x170
[ 5222.476817][   T73]      __sys_sendmsg+0xcd/0x170
[ 5222.476817][   T73]      do_syscall_64+0xc6/0x1e0
[ 5222.476817][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5222.476817][   T73] 
[ 5222.478728][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5222.478995][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5222.478995][   T73]      netdev_get_by_index+0x5e/0x80
[ 5222.478995][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5222.478995][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5222.478995][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5222.478995][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5222.478995][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5222.478995][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5222.478995][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5222.478995][   T73]      addrconf_dad_begin+0x310/0x670
[ 5222.478995][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5222.478995][   T73]      process_one_work+0x84d/0x18a0
[ 5222.478995][   T73]      worker_thread+0x587/0xd30
[ 5222.478995][   T73]      kthread+0x28a/0x350
[ 5222.478995][   T73]      ret_from_fork+0x31/0x70
[ 5222.478995][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5222.478995][   T73] 
[ 5222.481150][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5222.481150][   T73]      netdev_get_by_index+0x5e/0x80
[ 5222.481150][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5222.481150][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5222.481150][   T73]      ip6_route_add+0x1c/0x140
[ 5222.481150][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5222.481150][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5222.481150][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5222.481150][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5222.481150][   T73]      netlink_rcv_skb+0x130/0x360
[ 5222.481150][   T73]      netlink_unicast+0x449/0x710
[ 5222.481150][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5222.481150][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5222.481150][   T73]      ___sys_sendmsg+0xee/0x170
[ 5222.481150][   T73]      __sys_sendmsg+0xcd/0x170
[ 5222.481150][   T73]      do_syscall_64+0xc6/0x1e0
[ 5222.481150][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5222.481150][   T73] 
[ 5222.483381][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5222.483381][   T73]      netdev_get_by_index+0x5e/0x80
[ 5222.483381][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5222.483381][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5222.483381][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5222.483381][   T73]      ipv6_add_addr+0x411/0x2000
[ 5222.483381][   T73]      inet6_addr_add+0x30e/0xa40
[ 5222.483381][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5222.483381][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5222.483381][   T73]      netlink_rcv_skb+0x130/0x360
[ 5222.483381][   T73]      netlink_unicast+0x449/0x710
[ 5222.483381][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5222.483381][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5222.483381][   T73]      ___sys_sendmsg+0xee/0x170
[ 5222.483381][   T73]      __sys_sendmsg+0xcd/0x170
[ 5222.483381][   T73]      do_syscall_64+0xc6/0x1e0
[ 5222.483381][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5222.483381][   T73] 
[ 5222.486120][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5222.486120][   T73]      netdev_get_by_index+0x5e/0x80
[ 5222.486120][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5222.486120][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5222.486120][   T73]      ip6_route_add+0x1c/0x140
[ 5222.486120][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5222.486120][   T73]      addrconf_add_dev+0xe2/0x170
[ 5222.486120][   T73]      inet6_addr_add+0x12f/0xa40
[ 5222.486120][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5222.486120][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5222.486120][   T73]      netlink_rcv_skb+0x130/0x360
[ 5222.486120][   T73]      netlink_unicast+0x449/0x710
[ 5222.486120][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5222.486120][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5222.486120][   T73]      ___sys_sendmsg+0xee/0x170
[ 5222.486120][   T73]      __sys_sendmsg+0xcd/0x170
[ 5222.486120][   T73]      do_syscall_64+0xc6/0x1e0
[ 5222.486120][   T73] 
[ 5222.491094][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5222.491094][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5222.491094][   T73]      ipv6_find_idev+0x102/0x170
[ 5222.491094][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5222.491094][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5222.491094][   T73]      netlink_rcv_skb+0x130/0x360
[ 5222.491094][   T73]      netlink_unicast+0x449/0x710
[ 5222.491094][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5222.491094][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5222.491094][   T73]      ___sys_sendmsg+0xee/0x170
[ 5222.491094][   T73]      __sys_sendmsg+0xcd/0x170
[ 5222.491094][   T73]      do_syscall_64+0xc6/0x1e0
[ 5222.491094][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5222.491094][   T73] 
[ 5222.492808][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5222.492808][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5222.492808][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5222.492808][   T73]      ipv6_find_idev+0x102/0x170
[ 5222.492808][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5222.492808][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5222.492808][   T73]      netlink_rcv_skb+0x130/0x360
[ 5222.492808][   T73]      netlink_unicast+0x449/0x710
[ 5222.492808][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5222.492808][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5222.492808][   T73]      ___sys_sendmsg+0xee/0x170
[ 5222.492808][   T73]      __sys_sendmsg+0xcd/0x170
[ 5222.492808][   T73]      do_syscall_64+0xc6/0x1e0
[ 5222.492808][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5222.492808][   T73] 
[ 5232.639759][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5232.640243][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5232.640243][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5232.640243][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5232.640243][   T73]      fib6_nh_init+0xa22/0x1580
[ 5232.640243][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5232.640243][   T73]      ip6_route_add+0x1c/0x140
[ 5232.640243][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5232.640243][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5232.640243][   T73]      netlink_rcv_skb+0x130/0x360
[ 5232.640243][   T73]      netlink_unicast+0x449/0x710
[ 5232.640243][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5232.640243][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5232.640243][   T73]      ___sys_sendmsg+0xee/0x170
[ 5232.640243][   T73]      __sys_sendmsg+0xcd/0x170
[ 5232.640243][   T73]      do_syscall_64+0xc6/0x1e0
[ 5232.640243][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5232.640243][   T73] 
[ 5232.642149][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5232.642149][   T73]      dst_init+0x84/0x4a0
[ 5232.642149][   T73]      dst_alloc+0x97/0x150
[ 5232.642149][   T73]      ip6_dst_alloc+0x23/0x90
[ 5232.642149][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5232.642149][   T73]      ip6_pol_route+0x56f/0x840
[ 5232.642149][   T73]      fib6_rule_lookup+0x456/0x630
[ 5232.642149][   T73]      ip6_route_input+0x59c/0xa50
[ 5232.642149][   T73]      ipv6_rcv+0x397/0x810
[ 5232.642149][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5232.642149][   T73]      process_backlog+0x101/0x620
[ 5232.642149][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5232.642149][   T73]      net_rx_action+0x495/0xbe0
[ 5232.642149][   T73]      __do_softirq+0x1b5/0x7f6
[ 5232.642149][   T73] 
[ 5232.643789][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5232.643789][   T73]      netdev_get_by_index+0x5e/0x80
[ 5232.643789][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5232.643789][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5232.643789][   T73]      ip6_route_add+0x1c/0x140
[ 5232.643789][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5232.643789][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5232.643789][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5232.643789][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5232.643789][   T73]      netlink_rcv_skb+0x130/0x360
[ 5232.643789][   T73]      netlink_unicast+0x449/0x710
[ 5232.643789][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5232.643789][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5232.643789][   T73]      ___sys_sendmsg+0xee/0x170
[ 5232.643789][   T73]      __sys_sendmsg+0xcd/0x170
[ 5232.643789][   T73]      do_syscall_64+0xc6/0x1e0
[ 5232.643789][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5232.643789][   T73] 
[ 5232.645827][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5232.645827][   T73]      netdev_get_by_index+0x5e/0x80
[ 5232.645827][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5232.645827][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5232.645827][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5232.645827][   T73]      ipv6_add_addr+0x411/0x2000
[ 5232.645827][   T73]      inet6_addr_add+0x30e/0xa40
[ 5232.645827][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5232.645827][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5232.645827][   T73]      netlink_rcv_skb+0x130/0x360
[ 5232.645827][   T73]      netlink_unicast+0x449/0x710
[ 5232.645827][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5232.645827][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5232.645827][   T73]      ___sys_sendmsg+0xee/0x170
[ 5232.645827][   T73]      __sys_sendmsg+0xcd/0x170
[ 5232.645827][   T73]      do_syscall_64+0xc6/0x1e0
[ 5232.645827][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5232.645827][   T73] 
[ 5232.648412][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5232.648412][   T73]      netdev_get_by_index+0x5e/0x80
[ 5232.648412][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5232.648412][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5232.648412][   T73]      ip6_route_add+0x1c/0x140
[ 5232.648412][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5232.648412][   T73]      addrconf_add_dev+0xe2/0x170
[ 5232.648412][   T73]      inet6_addr_add+0x12f/0xa40
[ 5232.648412][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5232.648412][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5232.648412][   T73]      netlink_rcv_skb+0x130/0x360
[ 5232.648412][   T73]      netlink_unicast+0x449/0x710
[ 5232.648412][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5232.648412][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5232.648412][   T73]      ___sys_sendmsg+0xee/0x170
[ 5232.648412][   T73]      __sys_sendmsg+0xcd/0x170
[ 5232.648412][   T73]      do_syscall_64+0xc6/0x1e0
[ 5232.648412][   T73] 
[ 5232.650932][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5232.650932][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5232.650932][   T73]      ipv6_find_idev+0x102/0x170
[ 5232.650932][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5232.650932][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5232.650932][   T73]      netlink_rcv_skb+0x130/0x360
[ 5232.650932][   T73]      netlink_unicast+0x449/0x710
[ 5232.650932][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5232.650932][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5232.650932][   T73]      ___sys_sendmsg+0xee/0x170
[ 5232.650932][   T73]      __sys_sendmsg+0xcd/0x170
[ 5232.650932][   T73]      do_syscall_64+0xc6/0x1e0
[ 5232.650932][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5232.650932][   T73] 
[ 5232.652905][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5232.652905][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5232.652905][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5232.652905][   T73]      ipv6_find_idev+0x102/0x170
[ 5232.652905][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5232.652905][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5232.652905][   T73]      netlink_rcv_skb+0x130/0x360
[ 5232.652905][   T73]      netlink_unicast+0x449/0x710
[ 5232.652905][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5232.652905][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5232.652905][   T73]      ___sys_sendmsg+0xee/0x170
[ 5232.652905][   T73]      __sys_sendmsg+0xcd/0x170
[ 5232.652905][   T73]      do_syscall_64+0xc6/0x1e0
[ 5232.652905][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5232.652905][   T73] 
[ 5232.655057][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5232.655409][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5232.655409][   T73]      netdev_get_by_index+0x5e/0x80
[ 5232.655409][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5232.655409][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5232.655409][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5232.655409][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5232.655409][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5232.655409][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5232.655409][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5232.655409][   T73]      addrconf_dad_begin+0x310/0x670
[ 5232.655409][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5232.655409][   T73]      process_one_work+0x84d/0x18a0
[ 5232.655409][   T73]      worker_thread+0x587/0xd30
[ 5232.655409][   T73]      kthread+0x28a/0x350
[ 5232.655409][   T73]      ret_from_fork+0x31/0x70
[ 5232.655409][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5232.655409][   T73] 
[ 5232.657889][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5232.657889][   T73]      netdev_get_by_index+0x5e/0x80
[ 5232.657889][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5232.657889][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5232.657889][   T73]      ip6_route_add+0x1c/0x140
[ 5232.657889][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5232.657889][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5232.657889][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5232.657889][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5232.657889][   T73]      netlink_rcv_skb+0x130/0x360
[ 5232.657889][   T73]      netlink_unicast+0x449/0x710
[ 5232.657889][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5232.657889][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5232.657889][   T73]      ___sys_sendmsg+0xee/0x170
[ 5232.657889][   T73]      __sys_sendmsg+0xcd/0x170
[ 5232.657889][   T73]      do_syscall_64+0xc6/0x1e0
[ 5232.657889][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5232.657889][   T73] 
[ 5232.663244][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5232.663244][   T73]      netdev_get_by_index+0x5e/0x80
[ 5232.663244][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5232.663244][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5232.663244][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5232.663244][   T73]      ipv6_add_addr+0x411/0x2000
[ 5232.663244][   T73]      inet6_addr_add+0x30e/0xa40
[ 5232.663244][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5232.663244][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5232.663244][   T73]      netlink_rcv_skb+0x130/0x360
[ 5232.663244][   T73]      netlink_unicast+0x449/0x710
[ 5232.663244][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5232.663244][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5232.663244][   T73]      ___sys_sendmsg+0xee/0x170
[ 5232.663244][   T73]      __sys_sendmsg+0xcd/0x170
[ 5232.663244][   T73]      do_syscall_64+0xc6/0x1e0
[ 5232.663244][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5232.663244][   T73] 
[ 5232.665836][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5232.665836][   T73]      netdev_get_by_index+0x5e/0x80
[ 5232.665836][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5232.665836][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5232.665836][   T73]      ip6_route_add+0x1c/0x140
[ 5232.665836][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5232.665836][   T73]      addrconf_add_dev+0xe2/0x170
[ 5232.665836][   T73]      inet6_addr_add+0x12f/0xa40
[ 5232.665836][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5232.665836][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5232.665836][   T73]      netlink_rcv_skb+0x130/0x360
[ 5232.665836][   T73]      netlink_unicast+0x449/0x710
[ 5232.665836][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5232.665836][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5232.665836][   T73]      ___sys_sendmsg+0xee/0x170
[ 5232.665836][   T73]      __sys_sendmsg+0xcd/0x170
[ 5232.665836][   T73]      do_syscall_64+0xc6/0x1e0
[ 5232.665836][   T73] 
[ 5232.668367][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5232.668367][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5232.668367][   T73]      ipv6_find_idev+0x102/0x170
[ 5232.668367][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5232.668367][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5232.668367][   T73]      netlink_rcv_skb+0x130/0x360
[ 5232.668367][   T73]      netlink_unicast+0x449/0x710
[ 5232.668367][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5232.668367][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5232.668367][   T73]      ___sys_sendmsg+0xee/0x170
[ 5232.668367][   T73]      __sys_sendmsg+0xcd/0x170
[ 5232.668367][   T73]      do_syscall_64+0xc6/0x1e0
[ 5232.668367][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5232.668367][   T73] 
[ 5232.670297][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5232.670297][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5232.670297][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5232.670297][   T73]      ipv6_find_idev+0x102/0x170
[ 5232.670297][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5232.670297][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5232.670297][   T73]      netlink_rcv_skb+0x130/0x360
[ 5232.670297][   T73]      netlink_unicast+0x449/0x710
[ 5232.670297][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5232.670297][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5232.670297][   T73]      ___sys_sendmsg+0xee/0x170
[ 5232.670297][   T73]      __sys_sendmsg+0xcd/0x170
[ 5232.670297][   T73]      do_syscall_64+0xc6/0x1e0
[ 5232.670297][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5232.670297][   T73] 
[ 5232.671991][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5232.672259][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5232.672259][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5232.672259][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5232.672259][   T73]      fib6_nh_init+0xa22/0x1580
[ 5232.672259][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5232.672259][   T73]      ip6_route_add+0x1c/0x140
[ 5232.672259][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5232.672259][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5232.672259][   T73]      netlink_rcv_skb+0x130/0x360
[ 5232.672259][   T73]      netlink_unicast+0x449/0x710
[ 5232.672259][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5232.672259][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5232.672259][   T73]      ___sys_sendmsg+0xee/0x170
[ 5232.672259][   T73]      __sys_sendmsg+0xcd/0x170
[ 5232.672259][   T73]      do_syscall_64+0xc6/0x1e0
[ 5232.672259][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5232.672259][   T73] 
[ 5232.674333][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5232.674333][   T73]      dst_init+0x84/0x4a0
[ 5232.674333][   T73]      dst_alloc+0x97/0x150
[ 5232.674333][   T73]      ip6_dst_alloc+0x23/0x90
[ 5232.674333][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5232.674333][   T73]      ip6_pol_route+0x56f/0x840
[ 5232.674333][   T73]      fib6_rule_lookup+0x456/0x630
[ 5232.674333][   T73]      ip6_route_input+0x59c/0xa50
[ 5232.674333][   T73]      ipv6_rcv+0x397/0x810
[ 5232.674333][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5232.674333][   T73]      process_backlog+0x101/0x620
[ 5232.674333][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5232.674333][   T73]      net_rx_action+0x495/0xbe0
[ 5232.674333][   T73]      __do_softirq+0x1b5/0x7f6
[ 5232.674333][   T73] 
[ 5232.676112][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5232.676112][   T73]      netdev_get_by_index+0x5e/0x80
[ 5232.676112][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5232.676112][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5232.676112][   T73]      ip6_route_add+0x1c/0x140
[ 5232.676112][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5232.676112][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5232.676112][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5232.676112][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5232.676112][   T73]      netlink_rcv_skb+0x130/0x360
[ 5232.676112][   T73]      netlink_unicast+0x449/0x710
[ 5232.676112][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5232.676112][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5232.676112][   T73]      ___sys_sendmsg+0xee/0x170
[ 5232.676112][   T73]      __sys_sendmsg+0xcd/0x170
[ 5232.676112][   T73]      do_syscall_64+0xc6/0x1e0
[ 5232.676112][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5232.676112][   T73] 
[ 5232.678424][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5232.678424][   T73]      netdev_get_by_index+0x5e/0x80
[ 5232.678424][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5232.678424][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5232.678424][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5232.678424][   T73]      ipv6_add_addr+0x411/0x2000
[ 5232.678424][   T73]      inet6_addr_add+0x30e/0xa40
[ 5232.678424][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5232.678424][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5232.678424][   T73]      netlink_rcv_skb+0x130/0x360
[ 5232.678424][   T73]      netlink_unicast+0x449/0x710
[ 5232.678424][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5232.678424][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5232.678424][   T73]      ___sys_sendmsg+0xee/0x170
[ 5232.678424][   T73]      __sys_sendmsg+0xcd/0x170
[ 5232.678424][   T73]      do_syscall_64+0xc6/0x1e0
[ 5232.678424][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5232.678424][   T73] 
[ 5232.680694][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5232.680694][   T73]      netdev_get_by_index+0x5e/0x80
[ 5232.680694][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5232.680694][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5232.680694][   T73]      ip6_route_add+0x1c/0x140
[ 5232.680694][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5232.680694][   T73]      addrconf_add_dev+0xe2/0x170
[ 5232.680694][   T73]      inet6_addr_add+0x12f/0xa40
[ 5232.680694][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5232.680694][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5232.680694][   T73]      netlink_rcv_skb+0x130/0x360
[ 5232.680694][   T73]      netlink_unicast+0x449/0x710
[ 5232.680694][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5232.680694][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5232.680694][   T73]      ___sys_sendmsg+0xee/0x170
[ 5232.680694][   T73]      __sys_sendmsg+0xcd/0x170
[ 5232.680694][   T73]      do_syscall_64+0xc6/0x1e0
[ 5232.680694][   T73] 
[ 5232.682785][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5232.682785][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5232.682785][   T73]      ipv6_find_idev+0x102/0x170
[ 5232.682785][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5232.682785][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5232.682785][   T73]      netlink_rcv_skb+0x130/0x360
[ 5232.682785][   T73]      netlink_unicast+0x449/0x710
[ 5232.682785][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5232.682785][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5232.682785][   T73]      ___sys_sendmsg+0xee/0x170
[ 5232.682785][   T73]      __sys_sendmsg+0xcd/0x170
[ 5232.682785][   T73]      do_syscall_64+0xc6/0x1e0
[ 5232.682785][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5232.682785][   T73] 
[ 5232.684517][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5232.684517][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5232.684517][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5232.684517][   T73]      ipv6_find_idev+0x102/0x170
[ 5232.684517][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5232.684517][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5232.684517][   T73]      netlink_rcv_skb+0x130/0x360
[ 5232.684517][   T73]      netlink_unicast+0x449/0x710
[ 5232.684517][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5232.684517][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5232.684517][   T73]      ___sys_sendmsg+0xee/0x170
[ 5232.684517][   T73]      __sys_sendmsg+0xcd/0x170
[ 5232.684517][   T73]      do_syscall_64+0xc6/0x1e0
[ 5232.684517][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5232.684517][   T73] 
[ 5232.686531][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5232.687239][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5232.687239][   T73]      netdev_get_by_index+0x5e/0x80
[ 5232.687239][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5232.687239][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5232.687239][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5232.687239][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5232.687239][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5232.687239][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5232.687239][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5232.687239][   T73]      addrconf_dad_begin+0x310/0x670
[ 5232.687239][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5232.687239][   T73]      process_one_work+0x84d/0x18a0
[ 5232.687239][   T73]      worker_thread+0x587/0xd30
[ 5232.687239][   T73]      kthread+0x28a/0x350
[ 5232.687239][   T73]      ret_from_fork+0x31/0x70
[ 5232.687239][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5232.687239][   T73] 
[ 5232.689155][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5232.689155][   T73]      netdev_get_by_index+0x5e/0x80
[ 5232.689155][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5232.689155][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5232.689155][   T73]      ip6_route_add+0x1c/0x140
[ 5232.689155][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5232.689155][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5232.689155][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5232.689155][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5232.689155][   T73]      netlink_rcv_skb+0x130/0x360
[ 5232.689155][   T73]      netlink_unicast+0x449/0x710
[ 5232.689155][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5232.689155][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5232.689155][   T73]      ___sys_sendmsg+0xee/0x170
[ 5232.689155][   T73]      __sys_sendmsg+0xcd/0x170
[ 5232.689155][   T73]      do_syscall_64+0xc6/0x1e0
[ 5232.689155][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5232.689155][   T73] 
[ 5232.691296][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5232.691296][   T73]      netdev_get_by_index+0x5e/0x80
[ 5232.691296][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5232.691296][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5232.691296][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5232.691296][   T73]      ipv6_add_addr+0x411/0x2000
[ 5232.691296][   T73]      inet6_addr_add+0x30e/0xa40
[ 5232.691296][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5232.691296][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5232.691296][   T73]      netlink_rcv_skb+0x130/0x360
[ 5232.691296][   T73]      netlink_unicast+0x449/0x710
[ 5232.691296][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5232.691296][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5232.691296][   T73]      ___sys_sendmsg+0xee/0x170
[ 5232.691296][   T73]      __sys_sendmsg+0xcd/0x170
[ 5232.691296][   T73]      do_syscall_64+0xc6/0x1e0
[ 5232.691296][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5232.691296][   T73] 
[ 5232.693564][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5232.693564][   T73]      netdev_get_by_index+0x5e/0x80
[ 5232.693564][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5232.693564][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5232.693564][   T73]      ip6_route_add+0x1c/0x140
[ 5232.693564][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5232.693564][   T73]      addrconf_add_dev+0xe2/0x170
[ 5232.693564][   T73]      inet6_addr_add+0x12f/0xa40
[ 5232.693564][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5232.693564][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5232.693564][   T73]      netlink_rcv_skb+0x130/0x360
[ 5232.693564][   T73]      netlink_unicast+0x449/0x710
[ 5232.693564][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5232.693564][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5232.693564][   T73]      ___sys_sendmsg+0xee/0x170
[ 5232.693564][   T73]      __sys_sendmsg+0xcd/0x170
[ 5232.693564][   T73]      do_syscall_64+0xc6/0x1e0
[ 5232.693564][   T73] 
[ 5232.695739][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5232.695739][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5232.695739][   T73]      ipv6_find_idev+0x102/0x170
[ 5232.695739][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5232.695739][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5232.695739][   T73]      netlink_rcv_skb+0x130/0x360
[ 5232.695739][   T73]      netlink_unicast+0x449/0x710
[ 5232.695739][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5232.695739][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5232.695739][   T73]      ___sys_sendmsg+0xee/0x170
[ 5232.695739][   T73]      __sys_sendmsg+0xcd/0x170
[ 5232.695739][   T73]      do_syscall_64+0xc6/0x1e0
[ 5232.695739][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5232.695739][   T73] 
[ 5232.697481][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5232.697481][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5232.697481][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5232.697481][   T73]      ipv6_find_idev+0x102/0x170
[ 5232.697481][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5232.697481][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5232.697481][   T73]      netlink_rcv_skb+0x130/0x360
[ 5232.697481][   T73]      netlink_unicast+0x449/0x710
[ 5232.697481][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5232.697481][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5232.697481][   T73]      ___sys_sendmsg+0xee/0x170
[ 5232.697481][   T73]      __sys_sendmsg+0xcd/0x170
[ 5232.697481][   T73]      do_syscall_64+0xc6/0x1e0
[ 5232.697481][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5232.697481][   T73] 
[ 5242.847782][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5242.848274][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5242.848274][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5242.848274][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5242.848274][   T73]      fib6_nh_init+0xa22/0x1580
[ 5242.848274][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5242.848274][   T73]      ip6_route_add+0x1c/0x140
[ 5242.848274][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5242.848274][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5242.848274][   T73]      netlink_rcv_skb+0x130/0x360
[ 5242.848274][   T73]      netlink_unicast+0x449/0x710
[ 5242.848274][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5242.848274][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5242.848274][   T73]      ___sys_sendmsg+0xee/0x170
[ 5242.848274][   T73]      __sys_sendmsg+0xcd/0x170
[ 5242.848274][   T73]      do_syscall_64+0xc6/0x1e0
[ 5242.848274][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5242.848274][   T73] 
[ 5242.851332][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5242.851332][   T73]      dst_init+0x84/0x4a0
[ 5242.851332][   T73]      dst_alloc+0x97/0x150
[ 5242.851332][   T73]      ip6_dst_alloc+0x23/0x90
[ 5242.851332][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5242.851332][   T73]      ip6_pol_route+0x56f/0x840
[ 5242.851332][   T73]      fib6_rule_lookup+0x456/0x630
[ 5242.851332][   T73]      ip6_route_input+0x59c/0xa50
[ 5242.851332][   T73]      ipv6_rcv+0x397/0x810
[ 5242.851332][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5242.851332][   T73]      process_backlog+0x101/0x620
[ 5242.851332][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5242.851332][   T73]      net_rx_action+0x495/0xbe0
[ 5242.851332][   T73]      __do_softirq+0x1b5/0x7f6
[ 5242.851332][   T73] 
[ 5242.855687][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5242.855687][   T73]      netdev_get_by_index+0x5e/0x80
[ 5242.855687][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5242.855687][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5242.855687][   T73]      ip6_route_add+0x1c/0x140
[ 5242.855687][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5242.855687][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5242.855687][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5242.855687][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5242.855687][   T73]      netlink_rcv_skb+0x130/0x360
[ 5242.855687][   T73]      netlink_unicast+0x449/0x710
[ 5242.855687][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5242.855687][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5242.855687][   T73]      ___sys_sendmsg+0xee/0x170
[ 5242.855687][   T73]      __sys_sendmsg+0xcd/0x170
[ 5242.855687][   T73]      do_syscall_64+0xc6/0x1e0
[ 5242.855687][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5242.855687][   T73] 
[ 5242.857925][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5242.857925][   T73]      netdev_get_by_index+0x5e/0x80
[ 5242.857925][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5242.857925][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5242.857925][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5242.857925][   T73]      ipv6_add_addr+0x411/0x2000
[ 5242.857925][   T73]      inet6_addr_add+0x30e/0xa40
[ 5242.857925][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5242.857925][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5242.857925][   T73]      netlink_rcv_skb+0x130/0x360
[ 5242.857925][   T73]      netlink_unicast+0x449/0x710
[ 5242.857925][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5242.857925][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5242.857925][   T73]      ___sys_sendmsg+0xee/0x170
[ 5242.857925][   T73]      __sys_sendmsg+0xcd/0x170
[ 5242.857925][   T73]      do_syscall_64+0xc6/0x1e0
[ 5242.857925][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5242.857925][   T73] 
[ 5242.860172][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5242.860172][   T73]      netdev_get_by_index+0x5e/0x80
[ 5242.860172][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5242.860172][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5242.860172][   T73]      ip6_route_add+0x1c/0x140
[ 5242.860172][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5242.860172][   T73]      addrconf_add_dev+0xe2/0x170
[ 5242.860172][   T73]      inet6_addr_add+0x12f/0xa40
[ 5242.860172][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5242.860172][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5242.860172][   T73]      netlink_rcv_skb+0x130/0x360
[ 5242.860172][   T73]      netlink_unicast+0x449/0x710
[ 5242.860172][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5242.860172][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5242.860172][   T73]      ___sys_sendmsg+0xee/0x170
[ 5242.860172][   T73]      __sys_sendmsg+0xcd/0x170
[ 5242.860172][   T73]      do_syscall_64+0xc6/0x1e0
[ 5242.860172][   T73] 
[ 5242.862368][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5242.862368][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5242.862368][   T73]      ipv6_find_idev+0x102/0x170
[ 5242.862368][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5242.862368][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5242.862368][   T73]      netlink_rcv_skb+0x130/0x360
[ 5242.862368][   T73]      netlink_unicast+0x449/0x710
[ 5242.862368][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5242.862368][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5242.862368][   T73]      ___sys_sendmsg+0xee/0x170
[ 5242.862368][   T73]      __sys_sendmsg+0xcd/0x170
[ 5242.862368][   T73]      do_syscall_64+0xc6/0x1e0
[ 5242.862368][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5242.862368][   T73] 
[ 5242.864086][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5242.864086][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5242.864086][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5242.864086][   T73]      ipv6_find_idev+0x102/0x170
[ 5242.864086][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5242.864086][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5242.864086][   T73]      netlink_rcv_skb+0x130/0x360
[ 5242.864086][   T73]      netlink_unicast+0x449/0x710
[ 5242.864086][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5242.864086][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5242.864086][   T73]      ___sys_sendmsg+0xee/0x170
[ 5242.864086][   T73]      __sys_sendmsg+0xcd/0x170
[ 5242.864086][   T73]      do_syscall_64+0xc6/0x1e0
[ 5242.864086][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5242.864086][   T73] 
[ 5242.865977][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5242.866290][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5242.866290][   T73]      netdev_get_by_index+0x5e/0x80
[ 5242.866290][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5242.866290][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5242.866290][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5242.866290][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5242.866290][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5242.866290][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5242.866290][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5242.866290][   T73]      addrconf_dad_begin+0x310/0x670
[ 5242.866290][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5242.866290][   T73]      process_one_work+0x84d/0x18a0
[ 5242.866290][   T73]      worker_thread+0x587/0xd30
[ 5242.866290][   T73]      kthread+0x28a/0x350
[ 5242.866290][   T73]      ret_from_fork+0x31/0x70
[ 5242.866290][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5242.866290][   T73] 
[ 5242.868435][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5242.868435][   T73]      netdev_get_by_index+0x5e/0x80
[ 5242.868435][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5242.868435][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5242.868435][   T73]      ip6_route_add+0x1c/0x140
[ 5242.868435][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5242.868435][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5242.868435][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5242.868435][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5242.868435][   T73]      netlink_rcv_skb+0x130/0x360
[ 5242.868435][   T73]      netlink_unicast+0x449/0x710
[ 5242.868435][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5242.868435][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5242.868435][   T73]      ___sys_sendmsg+0xee/0x170
[ 5242.868435][   T73]      __sys_sendmsg+0xcd/0x170
[ 5242.868435][   T73]      do_syscall_64+0xc6/0x1e0
[ 5242.868435][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5242.868435][   T73] 
[ 5242.870662][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5242.870662][   T73]      netdev_get_by_index+0x5e/0x80
[ 5242.870662][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5242.870662][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5242.870662][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5242.870662][   T73]      ipv6_add_addr+0x411/0x2000
[ 5242.870662][   T73]      inet6_addr_add+0x30e/0xa40
[ 5242.870662][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5242.870662][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5242.870662][   T73]      netlink_rcv_skb+0x130/0x360
[ 5242.870662][   T73]      netlink_unicast+0x449/0x710
[ 5242.870662][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5242.870662][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5242.870662][   T73]      ___sys_sendmsg+0xee/0x170
[ 5242.870662][   T73]      __sys_sendmsg+0xcd/0x170
[ 5242.870662][   T73]      do_syscall_64+0xc6/0x1e0
[ 5242.870662][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5242.870662][   T73] 
[ 5242.872893][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5242.872893][   T73]      netdev_get_by_index+0x5e/0x80
[ 5242.872893][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5242.872893][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5242.872893][   T73]      ip6_route_add+0x1c/0x140
[ 5242.872893][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5242.872893][   T73]      addrconf_add_dev+0xe2/0x170
[ 5242.872893][   T73]      inet6_addr_add+0x12f/0xa40
[ 5242.872893][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5242.872893][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5242.872893][   T73]      netlink_rcv_skb+0x130/0x360
[ 5242.872893][   T73]      netlink_unicast+0x449/0x710
[ 5242.872893][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5242.872893][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5242.872893][   T73]      ___sys_sendmsg+0xee/0x170
[ 5242.872893][   T73]      __sys_sendmsg+0xcd/0x170
[ 5242.872893][   T73]      do_syscall_64+0xc6/0x1e0
[ 5242.872893][   T73] 
[ 5242.875072][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5242.875072][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5242.875072][   T73]      ipv6_find_idev+0x102/0x170
[ 5242.875072][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5242.875072][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5242.875072][   T73]      netlink_rcv_skb+0x130/0x360
[ 5242.875072][   T73]      netlink_unicast+0x449/0x710
[ 5242.875072][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5242.875072][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5242.875072][   T73]      ___sys_sendmsg+0xee/0x170
[ 5242.875072][   T73]      __sys_sendmsg+0xcd/0x170
[ 5242.875072][   T73]      do_syscall_64+0xc6/0x1e0
[ 5242.875072][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5242.875072][   T73] 
[ 5242.876785][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5242.876785][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5242.876785][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5242.876785][   T73]      ipv6_find_idev+0x102/0x170
[ 5242.876785][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5242.876785][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5242.876785][   T73]      netlink_rcv_skb+0x130/0x360
[ 5242.876785][   T73]      netlink_unicast+0x449/0x710
[ 5242.876785][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5242.876785][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5242.876785][   T73]      ___sys_sendmsg+0xee/0x170
[ 5242.876785][   T73]      __sys_sendmsg+0xcd/0x170
[ 5242.876785][   T73]      do_syscall_64+0xc6/0x1e0
[ 5242.876785][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5242.876785][   T73] 
[ 5242.878657][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5242.878952][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5242.878952][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5242.878952][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5242.878952][   T73]      fib6_nh_init+0xa22/0x1580
[ 5242.878952][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5242.878952][   T73]      ip6_route_add+0x1c/0x140
[ 5242.878952][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5242.878952][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5242.878952][   T73]      netlink_rcv_skb+0x130/0x360
[ 5242.878952][   T73]      netlink_unicast+0x449/0x710
[ 5242.878952][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5242.878952][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5242.878952][   T73]      ___sys_sendmsg+0xee/0x170
[ 5242.878952][   T73]      __sys_sendmsg+0xcd/0x170
[ 5242.878952][   T73]      do_syscall_64+0xc6/0x1e0
[ 5242.878952][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5242.878952][   T73] 
[ 5242.881266][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5242.881266][   T73]      dst_init+0x84/0x4a0
[ 5242.881266][   T73]      dst_alloc+0x97/0x150
[ 5242.881266][   T73]      ip6_dst_alloc+0x23/0x90
[ 5242.881266][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5242.881266][   T73]      ip6_pol_route+0x56f/0x840
[ 5242.881266][   T73]      fib6_rule_lookup+0x456/0x630
[ 5242.881266][   T73]      ip6_route_input+0x59c/0xa50
[ 5242.881266][   T73]      ipv6_rcv+0x397/0x810
[ 5242.881266][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5242.881266][   T73]      process_backlog+0x101/0x620
[ 5242.881266][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5242.881266][   T73]      net_rx_action+0x495/0xbe0
[ 5242.881266][   T73]      __do_softirq+0x1b5/0x7f6
[ 5242.881266][   T73] 
[ 5242.883349][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5242.883349][   T73]      netdev_get_by_index+0x5e/0x80
[ 5242.883349][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5242.883349][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5242.883349][   T73]      ip6_route_add+0x1c/0x140
[ 5242.883349][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5242.883349][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5242.883349][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5242.883349][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5242.883349][   T73]      netlink_rcv_skb+0x130/0x360
[ 5242.883349][   T73]      netlink_unicast+0x449/0x710
[ 5242.883349][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5242.883349][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5242.883349][   T73]      ___sys_sendmsg+0xee/0x170
[ 5242.883349][   T73]      __sys_sendmsg+0xcd/0x170
[ 5242.883349][   T73]      do_syscall_64+0xc6/0x1e0
[ 5242.883349][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5242.883349][   T73] 
[ 5242.885836][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5242.885836][   T73]      netdev_get_by_index+0x5e/0x80
[ 5242.885836][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5242.885836][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5242.885836][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5242.885836][   T73]      ipv6_add_addr+0x411/0x2000
[ 5242.885836][   T73]      inet6_addr_add+0x30e/0xa40
[ 5242.885836][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5242.885836][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5242.885836][   T73]      netlink_rcv_skb+0x130/0x360
[ 5242.885836][   T73]      netlink_unicast+0x449/0x710
[ 5242.885836][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5242.885836][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5242.885836][   T73]      ___sys_sendmsg+0xee/0x170
[ 5242.885836][   T73]      __sys_sendmsg+0xcd/0x170
[ 5242.885836][   T73]      do_syscall_64+0xc6/0x1e0
[ 5242.885836][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5242.885836][   T73] 
[ 5242.888250][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5242.888250][   T73]      netdev_get_by_index+0x5e/0x80
[ 5242.888250][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5242.888250][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5242.888250][   T73]      ip6_route_add+0x1c/0x140
[ 5242.888250][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5242.888250][   T73]      addrconf_add_dev+0xe2/0x170
[ 5242.888250][   T73]      inet6_addr_add+0x12f/0xa40
[ 5242.888250][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5242.888250][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5242.888250][   T73]      netlink_rcv_skb+0x130/0x360
[ 5242.888250][   T73]      netlink_unicast+0x449/0x710
[ 5242.888250][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5242.888250][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5242.888250][   T73]      ___sys_sendmsg+0xee/0x170
[ 5242.888250][   T73]      __sys_sendmsg+0xcd/0x170
[ 5242.888250][   T73]      do_syscall_64+0xc6/0x1e0
[ 5242.888250][   T73] 
[ 5242.890649][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5242.890649][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5242.890649][   T73]      ipv6_find_idev+0x102/0x170
[ 5242.890649][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5242.890649][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5242.890649][   T73]      netlink_rcv_skb+0x130/0x360
[ 5242.890649][   T73]      netlink_unicast+0x449/0x710
[ 5242.890649][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5242.890649][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5242.890649][   T73]      ___sys_sendmsg+0xee/0x170
[ 5242.890649][   T73]      __sys_sendmsg+0xcd/0x170
[ 5242.890649][   T73]      do_syscall_64+0xc6/0x1e0
[ 5242.890649][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5242.890649][   T73] 
[ 5242.892603][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5242.892603][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5242.892603][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5242.892603][   T73]      ipv6_find_idev+0x102/0x170
[ 5242.892603][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5242.892603][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5242.892603][   T73]      netlink_rcv_skb+0x130/0x360
[ 5242.892603][   T73]      netlink_unicast+0x449/0x710
[ 5242.892603][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5242.892603][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5242.892603][   T73]      ___sys_sendmsg+0xee/0x170
[ 5242.892603][   T73]      __sys_sendmsg+0xcd/0x170
[ 5242.892603][   T73]      do_syscall_64+0xc6/0x1e0
[ 5242.892603][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5242.892603][   T73] 
[ 5242.894665][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5242.895025][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5242.895025][   T73]      netdev_get_by_index+0x5e/0x80
[ 5242.895025][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5242.895025][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5242.895025][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5242.895025][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5242.895025][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5242.895025][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5242.895025][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5242.895025][   T73]      addrconf_dad_begin+0x310/0x670
[ 5242.895025][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5242.895025][   T73]      process_one_work+0x84d/0x18a0
[ 5242.895025][   T73]      worker_thread+0x587/0xd30
[ 5242.895025][   T73]      kthread+0x28a/0x350
[ 5242.895025][   T73]      ret_from_fork+0x31/0x70
[ 5242.895025][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5242.895025][   T73] 
[ 5242.897357][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5242.897357][   T73]      netdev_get_by_index+0x5e/0x80
[ 5242.897357][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5242.897357][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5242.897357][   T73]      ip6_route_add+0x1c/0x140
[ 5242.897357][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5242.897357][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5242.897357][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5242.897357][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5242.897357][   T73]      netlink_rcv_skb+0x130/0x360
[ 5242.897357][   T73]      netlink_unicast+0x449/0x710
[ 5242.897357][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5242.897357][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5242.897357][   T73]      ___sys_sendmsg+0xee/0x170
[ 5242.897357][   T73]      __sys_sendmsg+0xcd/0x170
[ 5242.897357][   T73]      do_syscall_64+0xc6/0x1e0
[ 5242.897357][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5242.897357][   T73] 
[ 5242.899832][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5242.899832][   T73]      netdev_get_by_index+0x5e/0x80
[ 5242.899832][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5242.899832][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5242.899832][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5242.899832][   T73]      ipv6_add_addr+0x411/0x2000
[ 5242.899832][   T73]      inet6_addr_add+0x30e/0xa40
[ 5242.899832][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5242.899832][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5242.899832][   T73]      netlink_rcv_skb+0x130/0x360
[ 5242.899832][   T73]      netlink_unicast+0x449/0x710
[ 5242.899832][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5242.899832][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5242.899832][   T73]      ___sys_sendmsg+0xee/0x170
[ 5242.899832][   T73]      __sys_sendmsg+0xcd/0x170
[ 5242.899832][   T73]      do_syscall_64+0xc6/0x1e0
[ 5242.899832][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5242.899832][   T73] 
[ 5242.902293][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5242.902293][   T73]      netdev_get_by_index+0x5e/0x80
[ 5242.902293][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5242.902293][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5242.902293][   T73]      ip6_route_add+0x1c/0x140
[ 5242.902293][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5242.902293][   T73]      addrconf_add_dev+0xe2/0x170
[ 5242.902293][   T73]      inet6_addr_add+0x12f/0xa40
[ 5242.902293][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5242.902293][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5242.902293][   T73]      netlink_rcv_skb+0x130/0x360
[ 5242.902293][   T73]      netlink_unicast+0x449/0x710
[ 5242.902293][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5242.902293][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5242.902293][   T73]      ___sys_sendmsg+0xee/0x170
[ 5242.902293][   T73]      __sys_sendmsg+0xcd/0x170
[ 5242.902293][   T73]      do_syscall_64+0xc6/0x1e0
[ 5242.902293][   T73] 
[ 5242.904762][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5242.904762][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5242.904762][   T73]      ipv6_find_idev+0x102/0x170
[ 5242.904762][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5242.904762][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5242.904762][   T73]      netlink_rcv_skb+0x130/0x360
[ 5242.904762][   T73]      netlink_unicast+0x449/0x710
[ 5242.904762][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5242.904762][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5242.904762][   T73]      ___sys_sendmsg+0xee/0x170
[ 5242.904762][   T73]      __sys_sendmsg+0xcd/0x170
[ 5242.904762][   T73]      do_syscall_64+0xc6/0x1e0
[ 5242.904762][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5242.904762][   T73] 
[ 5242.906653][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5242.906653][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5242.906653][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5242.906653][   T73]      ipv6_find_idev+0x102/0x170
[ 5242.906653][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5242.906653][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5242.906653][   T73]      netlink_rcv_skb+0x130/0x360
[ 5242.906653][   T73]      netlink_unicast+0x449/0x710
[ 5242.906653][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5242.906653][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5242.906653][   T73]      ___sys_sendmsg+0xee/0x170
[ 5242.906653][   T73]      __sys_sendmsg+0xcd/0x170
[ 5242.906653][   T73]      do_syscall_64+0xc6/0x1e0
[ 5242.906653][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5242.906653][   T73] 
[ 5253.055774][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5253.056301][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5253.056301][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5253.056301][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5253.056301][   T73]      fib6_nh_init+0xa22/0x1580
[ 5253.056301][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5253.056301][   T73]      ip6_route_add+0x1c/0x140
[ 5253.056301][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5253.056301][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5253.056301][   T73]      netlink_rcv_skb+0x130/0x360
[ 5253.056301][   T73]      netlink_unicast+0x449/0x710
[ 5253.056301][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5253.056301][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5253.056301][   T73]      ___sys_sendmsg+0xee/0x170
[ 5253.056301][   T73]      __sys_sendmsg+0xcd/0x170
[ 5253.056301][   T73]      do_syscall_64+0xc6/0x1e0
[ 5253.056301][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5253.056301][   T73] 
[ 5253.058448][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5253.058448][   T73]      dst_init+0x84/0x4a0
[ 5253.058448][   T73]      dst_alloc+0x97/0x150
[ 5253.058448][   T73]      ip6_dst_alloc+0x23/0x90
[ 5253.058448][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5253.058448][   T73]      ip6_pol_route+0x56f/0x840
[ 5253.058448][   T73]      fib6_rule_lookup+0x456/0x630
[ 5253.058448][   T73]      ip6_route_input+0x59c/0xa50
[ 5253.058448][   T73]      ipv6_rcv+0x397/0x810
[ 5253.058448][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5253.058448][   T73]      process_backlog+0x101/0x620
[ 5253.058448][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5253.058448][   T73]      net_rx_action+0x495/0xbe0
[ 5253.058448][   T73]      __do_softirq+0x1b5/0x7f6
[ 5253.058448][   T73] 
[ 5253.060285][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5253.060285][   T73]      netdev_get_by_index+0x5e/0x80
[ 5253.060285][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5253.060285][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5253.060285][   T73]      ip6_route_add+0x1c/0x140
[ 5253.060285][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5253.060285][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5253.060285][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5253.060285][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5253.060285][   T73]      netlink_rcv_skb+0x130/0x360
[ 5253.060285][   T73]      netlink_unicast+0x449/0x710
[ 5253.060285][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5253.060285][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5253.060285][   T73]      ___sys_sendmsg+0xee/0x170
[ 5253.060285][   T73]      __sys_sendmsg+0xcd/0x170
[ 5253.060285][   T73]      do_syscall_64+0xc6/0x1e0
[ 5253.060285][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5253.060285][   T73] 
[ 5253.062522][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5253.062522][   T73]      netdev_get_by_index+0x5e/0x80
[ 5253.062522][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5253.062522][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5253.062522][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5253.062522][   T73]      ipv6_add_addr+0x411/0x2000
[ 5253.062522][   T73]      inet6_addr_add+0x30e/0xa40
[ 5253.062522][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5253.062522][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5253.062522][   T73]      netlink_rcv_skb+0x130/0x360
[ 5253.062522][   T73]      netlink_unicast+0x449/0x710
[ 5253.062522][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5253.062522][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5253.062522][   T73]      ___sys_sendmsg+0xee/0x170
[ 5253.062522][   T73]      __sys_sendmsg+0xcd/0x170
[ 5253.062522][   T73]      do_syscall_64+0xc6/0x1e0
[ 5253.062522][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5253.062522][   T73] 
[ 5253.064756][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5253.064756][   T73]      netdev_get_by_index+0x5e/0x80
[ 5253.064756][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5253.064756][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5253.064756][   T73]      ip6_route_add+0x1c/0x140
[ 5253.064756][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5253.064756][   T73]      addrconf_add_dev+0xe2/0x170
[ 5253.064756][   T73]      inet6_addr_add+0x12f/0xa40
[ 5253.064756][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5253.064756][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5253.064756][   T73]      netlink_rcv_skb+0x130/0x360
[ 5253.064756][   T73]      netlink_unicast+0x449/0x710
[ 5253.064756][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5253.064756][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5253.064756][   T73]      ___sys_sendmsg+0xee/0x170
[ 5253.064756][   T73]      __sys_sendmsg+0xcd/0x170
[ 5253.064756][   T73]      do_syscall_64+0xc6/0x1e0
[ 5253.064756][   T73] 
[ 5253.066964][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5253.066964][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5253.066964][   T73]      ipv6_find_idev+0x102/0x170
[ 5253.066964][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5253.066964][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5253.066964][   T73]      netlink_rcv_skb+0x130/0x360
[ 5253.066964][   T73]      netlink_unicast+0x449/0x710
[ 5253.066964][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5253.066964][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5253.066964][   T73]      ___sys_sendmsg+0xee/0x170
[ 5253.066964][   T73]      __sys_sendmsg+0xcd/0x170
[ 5253.066964][   T73]      do_syscall_64+0xc6/0x1e0
[ 5253.066964][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5253.066964][   T73] 
[ 5253.068689][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5253.068689][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5253.068689][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5253.068689][   T73]      ipv6_find_idev+0x102/0x170
[ 5253.068689][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5253.068689][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5253.068689][   T73]      netlink_rcv_skb+0x130/0x360
[ 5253.068689][   T73]      netlink_unicast+0x449/0x710
[ 5253.068689][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5253.068689][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5253.068689][   T73]      ___sys_sendmsg+0xee/0x170
[ 5253.068689][   T73]      __sys_sendmsg+0xcd/0x170
[ 5253.068689][   T73]      do_syscall_64+0xc6/0x1e0
[ 5253.068689][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5253.068689][   T73] 
[ 5253.070599][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5253.070919][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5253.070919][   T73]      netdev_get_by_index+0x5e/0x80
[ 5253.070919][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5253.070919][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5253.070919][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5253.070919][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5253.070919][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5253.070919][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5253.070919][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5253.070919][   T73]      addrconf_dad_begin+0x310/0x670
[ 5253.070919][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5253.070919][   T73]      process_one_work+0x84d/0x18a0
[ 5253.070919][   T73]      worker_thread+0x587/0xd30
[ 5253.070919][   T73]      kthread+0x28a/0x350
[ 5253.070919][   T73]      ret_from_fork+0x31/0x70
[ 5253.070919][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5253.070919][   T73] 
[ 5253.073074][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5253.073074][   T73]      netdev_get_by_index+0x5e/0x80
[ 5253.073074][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5253.073074][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5253.073074][   T73]      ip6_route_add+0x1c/0x140
[ 5253.073074][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5253.073074][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5253.073074][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5253.073074][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5253.073074][   T73]      netlink_rcv_skb+0x130/0x360
[ 5253.073074][   T73]      netlink_unicast+0x449/0x710
[ 5253.073074][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5253.073074][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5253.073074][   T73]      ___sys_sendmsg+0xee/0x170
[ 5253.073074][   T73]      __sys_sendmsg+0xcd/0x170
[ 5253.073074][   T73]      do_syscall_64+0xc6/0x1e0
[ 5253.073074][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5253.073074][   T73] 
[ 5253.075305][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5253.075305][   T73]      netdev_get_by_index+0x5e/0x80
[ 5253.075305][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5253.075305][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5253.075305][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5253.075305][   T73]      ipv6_add_addr+0x411/0x2000
[ 5253.075305][   T73]      inet6_addr_add+0x30e/0xa40
[ 5253.075305][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5253.075305][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5253.075305][   T73]      netlink_rcv_skb+0x130/0x360
[ 5253.075305][   T73]      netlink_unicast+0x449/0x710
[ 5253.075305][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5253.075305][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5253.075305][   T73]      ___sys_sendmsg+0xee/0x170
[ 5253.075305][   T73]      __sys_sendmsg+0xcd/0x170
[ 5253.075305][   T73]      do_syscall_64+0xc6/0x1e0
[ 5253.075305][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5253.075305][   T73] 
[ 5253.077542][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5253.077542][   T73]      netdev_get_by_index+0x5e/0x80
[ 5253.077542][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5253.077542][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5253.077542][   T73]      ip6_route_add+0x1c/0x140
[ 5253.077542][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5253.077542][   T73]      addrconf_add_dev+0xe2/0x170
[ 5253.077542][   T73]      inet6_addr_add+0x12f/0xa40
[ 5253.077542][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5253.077542][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5253.077542][   T73]      netlink_rcv_skb+0x130/0x360
[ 5253.077542][   T73]      netlink_unicast+0x449/0x710
[ 5253.077542][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5253.077542][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5253.077542][   T73]      ___sys_sendmsg+0xee/0x170
[ 5253.077542][   T73]      __sys_sendmsg+0xcd/0x170
[ 5253.077542][   T73]      do_syscall_64+0xc6/0x1e0
[ 5253.077542][   T73] 
[ 5253.079735][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5253.079735][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5253.079735][   T73]      ipv6_find_idev+0x102/0x170
[ 5253.079735][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5253.079735][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5253.079735][   T73]      netlink_rcv_skb+0x130/0x360
[ 5253.079735][   T73]      netlink_unicast+0x449/0x710
[ 5253.079735][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5253.079735][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5253.079735][   T73]      ___sys_sendmsg+0xee/0x170
[ 5253.079735][   T73]      __sys_sendmsg+0xcd/0x170
[ 5253.079735][   T73]      do_syscall_64+0xc6/0x1e0
[ 5253.079735][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5253.079735][   T73] 
[ 5253.081447][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5253.081447][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5253.081447][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5253.081447][   T73]      ipv6_find_idev+0x102/0x170
[ 5253.081447][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5253.081447][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5253.081447][   T73]      netlink_rcv_skb+0x130/0x360
[ 5253.081447][   T73]      netlink_unicast+0x449/0x710
[ 5253.081447][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5253.081447][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5253.081447][   T73]      ___sys_sendmsg+0xee/0x170
[ 5253.081447][   T73]      __sys_sendmsg+0xcd/0x170
[ 5253.081447][   T73]      do_syscall_64+0xc6/0x1e0
[ 5253.081447][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5253.081447][   T73] 
[ 5253.083330][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5253.083620][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5253.083620][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5253.083620][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5253.083620][   T73]      fib6_nh_init+0xa22/0x1580
[ 5253.083620][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5253.083620][   T73]      ip6_route_add+0x1c/0x140
[ 5253.083620][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5253.083620][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5253.083620][   T73]      netlink_rcv_skb+0x130/0x360
[ 5253.083620][   T73]      netlink_unicast+0x449/0x710
[ 5253.083620][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5253.083620][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5253.083620][   T73]      ___sys_sendmsg+0xee/0x170
[ 5253.083620][   T73]      __sys_sendmsg+0xcd/0x170
[ 5253.083620][   T73]      do_syscall_64+0xc6/0x1e0
[ 5253.083620][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5253.083620][   T73] 
[ 5253.085926][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5253.085926][   T73]      dst_init+0x84/0x4a0
[ 5253.085926][   T73]      dst_alloc+0x97/0x150
[ 5253.085926][   T73]      ip6_dst_alloc+0x23/0x90
[ 5253.085926][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5253.085926][   T73]      ip6_pol_route+0x56f/0x840
[ 5253.085926][   T73]      fib6_rule_lookup+0x456/0x630
[ 5253.085926][   T73]      ip6_route_input+0x59c/0xa50
[ 5253.085926][   T73]      ipv6_rcv+0x397/0x810
[ 5253.085926][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5253.085926][   T73]      process_backlog+0x101/0x620
[ 5253.085926][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5253.085926][   T73]      net_rx_action+0x495/0xbe0
[ 5253.085926][   T73]      __do_softirq+0x1b5/0x7f6
[ 5253.085926][   T73] 
[ 5253.087931][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5253.087931][   T73]      netdev_get_by_index+0x5e/0x80
[ 5253.087931][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5253.087931][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5253.087931][   T73]      ip6_route_add+0x1c/0x140
[ 5253.087931][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5253.087931][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5253.087931][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5253.087931][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5253.087931][   T73]      netlink_rcv_skb+0x130/0x360
[ 5253.087931][   T73]      netlink_unicast+0x449/0x710
[ 5253.087931][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5253.087931][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5253.087931][   T73]      ___sys_sendmsg+0xee/0x170
[ 5253.087931][   T73]      __sys_sendmsg+0xcd/0x170
[ 5253.087931][   T73]      do_syscall_64+0xc6/0x1e0
[ 5253.087931][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5253.087931][   T73] 
[ 5253.090507][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5253.090507][   T73]      netdev_get_by_index+0x5e/0x80
[ 5253.090507][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5253.090507][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5253.090507][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5253.090507][   T73]      ipv6_add_addr+0x411/0x2000
[ 5253.090507][   T73]      inet6_addr_add+0x30e/0xa40
[ 5253.090507][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5253.090507][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5253.090507][   T73]      netlink_rcv_skb+0x130/0x360
[ 5253.090507][   T73]      netlink_unicast+0x449/0x710
[ 5253.090507][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5253.090507][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5253.090507][   T73]      ___sys_sendmsg+0xee/0x170
[ 5253.090507][   T73]      __sys_sendmsg+0xcd/0x170
[ 5253.090507][   T73]      do_syscall_64+0xc6/0x1e0
[ 5253.090507][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5253.090507][   T73] 
[ 5253.092982][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5253.092982][   T73]      netdev_get_by_index+0x5e/0x80
[ 5253.092982][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5253.092982][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5253.092982][   T73]      ip6_route_add+0x1c/0x140
[ 5253.092982][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5253.092982][   T73]      addrconf_add_dev+0xe2/0x170
[ 5253.092982][   T73]      inet6_addr_add+0x12f/0xa40
[ 5253.092982][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5253.092982][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5253.092982][   T73]      netlink_rcv_skb+0x130/0x360
[ 5253.092982][   T73]      netlink_unicast+0x449/0x710
[ 5253.092982][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5253.092982][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5253.092982][   T73]      ___sys_sendmsg+0xee/0x170
[ 5253.092982][   T73]      __sys_sendmsg+0xcd/0x170
[ 5253.092982][   T73]      do_syscall_64+0xc6/0x1e0
[ 5253.092982][   T73] 
[ 5253.095429][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5253.095429][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5253.095429][   T73]      ipv6_find_idev+0x102/0x170
[ 5253.095429][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5253.095429][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5253.095429][   T73]      netlink_rcv_skb+0x130/0x360
[ 5253.095429][   T73]      netlink_unicast+0x449/0x710
[ 5253.095429][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5253.095429][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5253.095429][   T73]      ___sys_sendmsg+0xee/0x170
[ 5253.095429][   T73]      __sys_sendmsg+0xcd/0x170
[ 5253.095429][   T73]      do_syscall_64+0xc6/0x1e0
[ 5253.095429][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5253.095429][   T73] 
[ 5253.097332][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5253.097332][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5253.097332][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5253.097332][   T73]      ipv6_find_idev+0x102/0x170
[ 5253.097332][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5253.097332][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5253.097332][   T73]      netlink_rcv_skb+0x130/0x360
[ 5253.097332][   T73]      netlink_unicast+0x449/0x710
[ 5253.097332][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5253.097332][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5253.097332][   T73]      ___sys_sendmsg+0xee/0x170
[ 5253.097332][   T73]      __sys_sendmsg+0xcd/0x170
[ 5253.097332][   T73]      do_syscall_64+0xc6/0x1e0
[ 5253.097332][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5253.097332][   T73] 
[ 5253.099815][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5253.100117][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5253.100117][   T73]      netdev_get_by_index+0x5e/0x80
[ 5253.100117][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5253.100117][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5253.100117][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5253.100117][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5253.100117][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5253.100117][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5253.100117][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5253.100117][   T73]      addrconf_dad_begin+0x310/0x670
[ 5253.100117][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5253.100117][   T73]      process_one_work+0x84d/0x18a0
[ 5253.100117][   T73]      worker_thread+0x587/0xd30
[ 5253.100117][   T73]      kthread+0x28a/0x350
[ 5253.100117][   T73]      ret_from_fork+0x31/0x70
[ 5253.100117][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5253.100117][   T73] 
[ 5253.102291][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5253.102291][   T73]      netdev_get_by_index+0x5e/0x80
[ 5253.102291][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5253.102291][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5253.102291][   T73]      ip6_route_add+0x1c/0x140
[ 5253.102291][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5253.102291][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5253.102291][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5253.102291][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5253.102291][   T73]      netlink_rcv_skb+0x130/0x360
[ 5253.102291][   T73]      netlink_unicast+0x449/0x710
[ 5253.102291][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5253.102291][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5253.102291][   T73]      ___sys_sendmsg+0xee/0x170
[ 5253.102291][   T73]      __sys_sendmsg+0xcd/0x170
[ 5253.102291][   T73]      do_syscall_64+0xc6/0x1e0
[ 5253.102291][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5253.102291][   T73] 
[ 5253.104676][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5253.104676][   T73]      netdev_get_by_index+0x5e/0x80
[ 5253.104676][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5253.104676][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5253.104676][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5253.104676][   T73]      ipv6_add_addr+0x411/0x2000
[ 5253.104676][   T73]      inet6_addr_add+0x30e/0xa40
[ 5253.104676][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5253.104676][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5253.104676][   T73]      netlink_rcv_skb+0x130/0x360
[ 5253.104676][   T73]      netlink_unicast+0x449/0x710
[ 5253.104676][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5253.104676][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5253.104676][   T73]      ___sys_sendmsg+0xee/0x170
[ 5253.104676][   T73]      __sys_sendmsg+0xcd/0x170
[ 5253.104676][   T73]      do_syscall_64+0xc6/0x1e0
[ 5253.104676][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5253.104676][   T73] 
[ 5253.107254][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5253.107254][   T73]      netdev_get_by_index+0x5e/0x80
[ 5253.107254][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5253.107254][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5253.107254][   T73]      ip6_route_add+0x1c/0x140
[ 5253.107254][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5253.107254][   T73]      addrconf_add_dev+0xe2/0x170
[ 5253.107254][   T73]      inet6_addr_add+0x12f/0xa40
[ 5253.107254][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5253.107254][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5253.107254][   T73]      netlink_rcv_skb+0x130/0x360
[ 5253.107254][   T73]      netlink_unicast+0x449/0x710
[ 5253.107254][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5253.107254][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5253.107254][   T73]      ___sys_sendmsg+0xee/0x170
[ 5253.107254][   T73]      __sys_sendmsg+0xcd/0x170
[ 5253.107254][   T73]      do_syscall_64+0xc6/0x1e0
[ 5253.107254][   T73] 
[ 5253.109709][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5253.109709][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5253.109709][   T73]      ipv6_find_idev+0x102/0x170
[ 5253.109709][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5253.109709][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5253.109709][   T73]      netlink_rcv_skb+0x130/0x360
[ 5253.109709][   T73]      netlink_unicast+0x449/0x710
[ 5253.109709][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5253.109709][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5253.109709][   T73]      ___sys_sendmsg+0xee/0x170
[ 5253.109709][   T73]      __sys_sendmsg+0xcd/0x170
[ 5253.109709][   T73]      do_syscall_64+0xc6/0x1e0
[ 5253.109709][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5253.109709][   T73] 
[ 5253.111574][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5253.111574][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5253.111574][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5253.111574][   T73]      ipv6_find_idev+0x102/0x170
[ 5253.111574][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5253.111574][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5253.111574][   T73]      netlink_rcv_skb+0x130/0x360
[ 5253.111574][   T73]      netlink_unicast+0x449/0x710
[ 5253.111574][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5253.111574][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5253.111574][   T73]      ___sys_sendmsg+0xee/0x170
[ 5253.111574][   T73]      __sys_sendmsg+0xcd/0x170
[ 5253.111574][   T73]      do_syscall_64+0xc6/0x1e0
[ 5253.111574][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5253.111574][   T73] 
[ 5263.351766][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5263.352285][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5263.352285][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5263.352285][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5263.352285][   T73]      fib6_nh_init+0xa22/0x1580
[ 5263.352285][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5263.352285][   T73]      ip6_route_add+0x1c/0x140
[ 5263.352285][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5263.352285][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5263.352285][   T73]      netlink_rcv_skb+0x130/0x360
[ 5263.352285][   T73]      netlink_unicast+0x449/0x710
[ 5263.352285][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5263.352285][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5263.352285][   T73]      ___sys_sendmsg+0xee/0x170
[ 5263.352285][   T73]      __sys_sendmsg+0xcd/0x170
[ 5263.352285][   T73]      do_syscall_64+0xc6/0x1e0
[ 5263.352285][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5263.352285][   T73] 
[ 5263.354415][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5263.354415][   T73]      dst_init+0x84/0x4a0
[ 5263.354415][   T73]      dst_alloc+0x97/0x150
[ 5263.354415][   T73]      ip6_dst_alloc+0x23/0x90
[ 5263.354415][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5263.354415][   T73]      ip6_pol_route+0x56f/0x840
[ 5263.354415][   T73]      fib6_rule_lookup+0x456/0x630
[ 5263.354415][   T73]      ip6_route_input+0x59c/0xa50
[ 5263.354415][   T73]      ipv6_rcv+0x397/0x810
[ 5263.354415][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5263.354415][   T73]      process_backlog+0x101/0x620
[ 5263.354415][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5263.354415][   T73]      net_rx_action+0x495/0xbe0
[ 5263.354415][   T73]      __do_softirq+0x1b5/0x7f6
[ 5263.354415][   T73] 
[ 5263.356252][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5263.356252][   T73]      netdev_get_by_index+0x5e/0x80
[ 5263.356252][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5263.356252][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5263.356252][   T73]      ip6_route_add+0x1c/0x140
[ 5263.356252][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5263.356252][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5263.356252][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5263.356252][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5263.356252][   T73]      netlink_rcv_skb+0x130/0x360
[ 5263.356252][   T73]      netlink_unicast+0x449/0x710
[ 5263.356252][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5263.356252][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5263.356252][   T73]      ___sys_sendmsg+0xee/0x170
[ 5263.356252][   T73]      __sys_sendmsg+0xcd/0x170
[ 5263.356252][   T73]      do_syscall_64+0xc6/0x1e0
[ 5263.356252][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5263.356252][   T73] 
[ 5263.358510][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5263.358510][   T73]      netdev_get_by_index+0x5e/0x80
[ 5263.358510][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5263.358510][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5263.358510][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5263.358510][   T73]      ipv6_add_addr+0x411/0x2000
[ 5263.358510][   T73]      inet6_addr_add+0x30e/0xa40
[ 5263.358510][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5263.358510][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5263.358510][   T73]      netlink_rcv_skb+0x130/0x360
[ 5263.358510][   T73]      netlink_unicast+0x449/0x710
[ 5263.358510][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5263.358510][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5263.358510][   T73]      ___sys_sendmsg+0xee/0x170
[ 5263.358510][   T73]      __sys_sendmsg+0xcd/0x170
[ 5263.358510][   T73]      do_syscall_64+0xc6/0x1e0
[ 5263.358510][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5263.358510][   T73] 
[ 5263.360755][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5263.360755][   T73]      netdev_get_by_index+0x5e/0x80
[ 5263.360755][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5263.360755][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5263.360755][   T73]      ip6_route_add+0x1c/0x140
[ 5263.360755][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5263.360755][   T73]      addrconf_add_dev+0xe2/0x170
[ 5263.360755][   T73]      inet6_addr_add+0x12f/0xa40
[ 5263.360755][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5263.360755][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5263.360755][   T73]      netlink_rcv_skb+0x130/0x360
[ 5263.360755][   T73]      netlink_unicast+0x449/0x710
[ 5263.360755][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5263.360755][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5263.360755][   T73]      ___sys_sendmsg+0xee/0x170
[ 5263.360755][   T73]      __sys_sendmsg+0xcd/0x170
[ 5263.360755][   T73]      do_syscall_64+0xc6/0x1e0
[ 5263.360755][   T73] 
[ 5263.362938][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5263.362938][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5263.362938][   T73]      ipv6_find_idev+0x102/0x170
[ 5263.362938][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5263.362938][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5263.362938][   T73]      netlink_rcv_skb+0x130/0x360
[ 5263.362938][   T73]      netlink_unicast+0x449/0x710
[ 5263.362938][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5263.362938][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5263.362938][   T73]      ___sys_sendmsg+0xee/0x170
[ 5263.362938][   T73]      __sys_sendmsg+0xcd/0x170
[ 5263.362938][   T73]      do_syscall_64+0xc6/0x1e0
[ 5263.362938][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5263.362938][   T73] 
[ 5263.364643][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5263.364643][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5263.364643][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5263.364643][   T73]      ipv6_find_idev+0x102/0x170
[ 5263.364643][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5263.364643][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5263.364643][   T73]      netlink_rcv_skb+0x130/0x360
[ 5263.364643][   T73]      netlink_unicast+0x449/0x710
[ 5263.364643][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5263.364643][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5263.364643][   T73]      ___sys_sendmsg+0xee/0x170
[ 5263.364643][   T73]      __sys_sendmsg+0xcd/0x170
[ 5263.364643][   T73]      do_syscall_64+0xc6/0x1e0
[ 5263.364643][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5263.364643][   T73] 
[ 5263.366603][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5263.366923][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5263.366923][   T73]      netdev_get_by_index+0x5e/0x80
[ 5263.366923][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5263.366923][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5263.366923][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5263.366923][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5263.366923][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5263.366923][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5263.366923][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5263.366923][   T73]      addrconf_dad_begin+0x310/0x670
[ 5263.366923][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5263.366923][   T73]      process_one_work+0x84d/0x18a0
[ 5263.366923][   T73]      worker_thread+0x587/0xd30
[ 5263.366923][   T73]      kthread+0x28a/0x350
[ 5263.366923][   T73]      ret_from_fork+0x31/0x70
[ 5263.366923][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5263.366923][   T73] 
[ 5263.369046][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5263.369046][   T73]      netdev_get_by_index+0x5e/0x80
[ 5263.369046][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5263.369046][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5263.369046][   T73]      ip6_route_add+0x1c/0x140
[ 5263.369046][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5263.369046][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5263.369046][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5263.369046][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5263.369046][   T73]      netlink_rcv_skb+0x130/0x360
[ 5263.369046][   T73]      netlink_unicast+0x449/0x710
[ 5263.369046][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5263.369046][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5263.369046][   T73]      ___sys_sendmsg+0xee/0x170
[ 5263.369046][   T73]      __sys_sendmsg+0xcd/0x170
[ 5263.369046][   T73]      do_syscall_64+0xc6/0x1e0
[ 5263.369046][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5263.369046][   T73] 
[ 5263.371306][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5263.371306][   T73]      netdev_get_by_index+0x5e/0x80
[ 5263.371306][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5263.371306][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5263.371306][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5263.371306][   T73]      ipv6_add_addr+0x411/0x2000
[ 5263.371306][   T73]      inet6_addr_add+0x30e/0xa40
[ 5263.371306][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5263.371306][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5263.371306][   T73]      netlink_rcv_skb+0x130/0x360
[ 5263.371306][   T73]      netlink_unicast+0x449/0x710
[ 5263.371306][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5263.371306][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5263.371306][   T73]      ___sys_sendmsg+0xee/0x170
[ 5263.371306][   T73]      __sys_sendmsg+0xcd/0x170
[ 5263.371306][   T73]      do_syscall_64+0xc6/0x1e0
[ 5263.371306][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5263.371306][   T73] 
[ 5263.373525][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5263.373525][   T73]      netdev_get_by_index+0x5e/0x80
[ 5263.373525][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5263.373525][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5263.373525][   T73]      ip6_route_add+0x1c/0x140
[ 5263.373525][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5263.373525][   T73]      addrconf_add_dev+0xe2/0x170
[ 5263.373525][   T73]      inet6_addr_add+0x12f/0xa40
[ 5263.373525][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5263.373525][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5263.373525][   T73]      netlink_rcv_skb+0x130/0x360
[ 5263.373525][   T73]      netlink_unicast+0x449/0x710
[ 5263.373525][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5263.373525][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5263.373525][   T73]      ___sys_sendmsg+0xee/0x170
[ 5263.373525][   T73]      __sys_sendmsg+0xcd/0x170
[ 5263.373525][   T73]      do_syscall_64+0xc6/0x1e0
[ 5263.373525][   T73] 
[ 5263.375719][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5263.375719][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5263.375719][   T73]      ipv6_find_idev+0x102/0x170
[ 5263.375719][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5263.375719][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5263.375719][   T73]      netlink_rcv_skb+0x130/0x360
[ 5263.375719][   T73]      netlink_unicast+0x449/0x710
[ 5263.375719][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5263.375719][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5263.375719][   T73]      ___sys_sendmsg+0xee/0x170
[ 5263.375719][   T73]      __sys_sendmsg+0xcd/0x170
[ 5263.375719][   T73]      do_syscall_64+0xc6/0x1e0
[ 5263.375719][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5263.375719][   T73] 
[ 5263.377454][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5263.377454][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5263.377454][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5263.377454][   T73]      ipv6_find_idev+0x102/0x170
[ 5263.377454][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5263.377454][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5263.377454][   T73]      netlink_rcv_skb+0x130/0x360
[ 5263.377454][   T73]      netlink_unicast+0x449/0x710
[ 5263.377454][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5263.377454][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5263.377454][   T73]      ___sys_sendmsg+0xee/0x170
[ 5263.377454][   T73]      __sys_sendmsg+0xcd/0x170
[ 5263.377454][   T73]      do_syscall_64+0xc6/0x1e0
[ 5263.377454][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5263.377454][   T73] 
[ 5263.379348][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5263.379665][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5263.379665][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5263.379665][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5263.379665][   T73]      fib6_nh_init+0xa22/0x1580
[ 5263.379665][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5263.379665][   T73]      ip6_route_add+0x1c/0x140
[ 5263.379665][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5263.379665][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5263.379665][   T73]      netlink_rcv_skb+0x130/0x360
[ 5263.379665][   T73]      netlink_unicast+0x449/0x710
[ 5263.379665][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5263.379665][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5263.379665][   T73]      ___sys_sendmsg+0xee/0x170
[ 5263.379665][   T73]      __sys_sendmsg+0xcd/0x170
[ 5263.379665][   T73]      do_syscall_64+0xc6/0x1e0
[ 5263.379665][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5263.379665][   T73] 
[ 5263.381971][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5263.381971][   T73]      dst_init+0x84/0x4a0
[ 5263.381971][   T73]      dst_alloc+0x97/0x150
[ 5263.381971][   T73]      ip6_dst_alloc+0x23/0x90
[ 5263.381971][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5263.381971][   T73]      ip6_pol_route+0x56f/0x840
[ 5263.381971][   T73]      fib6_rule_lookup+0x456/0x630
[ 5263.381971][   T73]      ip6_route_input+0x59c/0xa50
[ 5263.381971][   T73]      ipv6_rcv+0x397/0x810
[ 5263.381971][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5263.381971][   T73]      process_backlog+0x101/0x620
[ 5263.381971][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5263.381971][   T73]      net_rx_action+0x495/0xbe0
[ 5263.381971][   T73]      __do_softirq+0x1b5/0x7f6
[ 5263.381971][   T73] 
[ 5263.384002][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5263.384002][   T73]      netdev_get_by_index+0x5e/0x80
[ 5263.384002][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5263.384002][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5263.384002][   T73]      ip6_route_add+0x1c/0x140
[ 5263.384002][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5263.384002][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5263.384002][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5263.384002][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5263.384002][   T73]      netlink_rcv_skb+0x130/0x360
[ 5263.384002][   T73]      netlink_unicast+0x449/0x710
[ 5263.384002][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5263.384002][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5263.384002][   T73]      ___sys_sendmsg+0xee/0x170
[ 5263.384002][   T73]      __sys_sendmsg+0xcd/0x170
[ 5263.384002][   T73]      do_syscall_64+0xc6/0x1e0
[ 5263.384002][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5263.384002][   T73] 
[ 5263.386573][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5263.386573][   T73]      netdev_get_by_index+0x5e/0x80
[ 5263.386573][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5263.386573][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5263.386573][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5263.386573][   T73]      ipv6_add_addr+0x411/0x2000
[ 5263.386573][   T73]      inet6_addr_add+0x30e/0xa40
[ 5263.386573][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5263.386573][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5263.386573][   T73]      netlink_rcv_skb+0x130/0x360
[ 5263.386573][   T73]      netlink_unicast+0x449/0x710
[ 5263.386573][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5263.386573][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5263.386573][   T73]      ___sys_sendmsg+0xee/0x170
[ 5263.386573][   T73]      __sys_sendmsg+0xcd/0x170
[ 5263.386573][   T73]      do_syscall_64+0xc6/0x1e0
[ 5263.386573][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5263.386573][   T73] 
[ 5263.389015][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5263.389015][   T73]      netdev_get_by_index+0x5e/0x80
[ 5263.389015][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5263.389015][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5263.389015][   T73]      ip6_route_add+0x1c/0x140
[ 5263.389015][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5263.389015][   T73]      addrconf_add_dev+0xe2/0x170
[ 5263.389015][   T73]      inet6_addr_add+0x12f/0xa40
[ 5263.389015][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5263.389015][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5263.389015][   T73]      netlink_rcv_skb+0x130/0x360
[ 5263.389015][   T73]      netlink_unicast+0x449/0x710
[ 5263.389015][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5263.389015][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5263.389015][   T73]      ___sys_sendmsg+0xee/0x170
[ 5263.389015][   T73]      __sys_sendmsg+0xcd/0x170
[ 5263.389015][   T73]      do_syscall_64+0xc6/0x1e0
[ 5263.389015][   T73] 
[ 5263.391490][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5263.391490][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5263.391490][   T73]      ipv6_find_idev+0x102/0x170
[ 5263.391490][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5263.391490][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5263.391490][   T73]      netlink_rcv_skb+0x130/0x360
[ 5263.391490][   T73]      netlink_unicast+0x449/0x710
[ 5263.391490][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5263.391490][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5263.391490][   T73]      ___sys_sendmsg+0xee/0x170
[ 5263.391490][   T73]      __sys_sendmsg+0xcd/0x170
[ 5263.391490][   T73]      do_syscall_64+0xc6/0x1e0
[ 5263.391490][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5263.391490][   T73] 
[ 5263.393403][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5263.393403][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5263.393403][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5263.393403][   T73]      ipv6_find_idev+0x102/0x170
[ 5263.393403][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5263.393403][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5263.393403][   T73]      netlink_rcv_skb+0x130/0x360
[ 5263.393403][   T73]      netlink_unicast+0x449/0x710
[ 5263.393403][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5263.393403][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5263.393403][   T73]      ___sys_sendmsg+0xee/0x170
[ 5263.393403][   T73]      __sys_sendmsg+0xcd/0x170
[ 5263.393403][   T73]      do_syscall_64+0xc6/0x1e0
[ 5263.393403][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5263.393403][   T73] 
[ 5263.395834][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5263.396137][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5263.396137][   T73]      netdev_get_by_index+0x5e/0x80
[ 5263.396137][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5263.396137][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5263.396137][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5263.396137][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5263.396137][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5263.396137][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5263.396137][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5263.396137][   T73]      addrconf_dad_begin+0x310/0x670
[ 5263.396137][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5263.396137][   T73]      process_one_work+0x84d/0x18a0
[ 5263.396137][   T73]      worker_thread+0x587/0xd30
[ 5263.396137][   T73]      kthread+0x28a/0x350
[ 5263.396137][   T73]      ret_from_fork+0x31/0x70
[ 5263.396137][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5263.396137][   T73] 
[ 5263.398285][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5263.398285][   T73]      netdev_get_by_index+0x5e/0x80
[ 5263.398285][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5263.398285][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5263.398285][   T73]      ip6_route_add+0x1c/0x140
[ 5263.398285][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5263.398285][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5263.398285][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5263.398285][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5263.398285][   T73]      netlink_rcv_skb+0x130/0x360
[ 5263.398285][   T73]      netlink_unicast+0x449/0x710
[ 5263.398285][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5263.398285][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5263.398285][   T73]      ___sys_sendmsg+0xee/0x170
[ 5263.398285][   T73]      __sys_sendmsg+0xcd/0x170
[ 5263.398285][   T73]      do_syscall_64+0xc6/0x1e0
[ 5263.398285][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5263.398285][   T73] 
[ 5263.400700][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5263.400700][   T73]      netdev_get_by_index+0x5e/0x80
[ 5263.400700][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5263.400700][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5263.400700][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5263.400700][   T73]      ipv6_add_addr+0x411/0x2000
[ 5263.400700][   T73]      inet6_addr_add+0x30e/0xa40
[ 5263.400700][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5263.400700][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5263.400700][   T73]      netlink_rcv_skb+0x130/0x360
[ 5263.400700][   T73]      netlink_unicast+0x449/0x710
[ 5263.400700][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5263.400700][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5263.400700][   T73]      ___sys_sendmsg+0xee/0x170
[ 5263.400700][   T73]      __sys_sendmsg+0xcd/0x170
[ 5263.400700][   T73]      do_syscall_64+0xc6/0x1e0
[ 5263.400700][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5263.400700][   T73] 
[ 5263.403180][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5263.403180][   T73]      netdev_get_by_index+0x5e/0x80
[ 5263.403180][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5263.403180][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5263.403180][   T73]      ip6_route_add+0x1c/0x140
[ 5263.403180][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5263.403180][   T73]      addrconf_add_dev+0xe2/0x170
[ 5263.403180][   T73]      inet6_addr_add+0x12f/0xa40
[ 5263.403180][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5263.403180][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5263.403180][   T73]      netlink_rcv_skb+0x130/0x360
[ 5263.403180][   T73]      netlink_unicast+0x449/0x710
[ 5263.403180][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5263.403180][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5263.403180][   T73]      ___sys_sendmsg+0xee/0x170
[ 5263.403180][   T73]      __sys_sendmsg+0xcd/0x170
[ 5263.403180][   T73]      do_syscall_64+0xc6/0x1e0
[ 5263.403180][   T73] 
[ 5263.405610][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5263.405610][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5263.405610][   T73]      ipv6_find_idev+0x102/0x170
[ 5263.405610][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5263.405610][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5263.405610][   T73]      netlink_rcv_skb+0x130/0x360
[ 5263.405610][   T73]      netlink_unicast+0x449/0x710
[ 5263.405610][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5263.405610][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5263.405610][   T73]      ___sys_sendmsg+0xee/0x170
[ 5263.405610][   T73]      __sys_sendmsg+0xcd/0x170
[ 5263.405610][   T73]      do_syscall_64+0xc6/0x1e0
[ 5263.405610][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5263.405610][   T73] 
[ 5263.407463][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5263.407463][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5263.407463][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5263.407463][   T73]      ipv6_find_idev+0x102/0x170
[ 5263.407463][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5263.407463][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5263.407463][   T73]      netlink_rcv_skb+0x130/0x360
[ 5263.407463][   T73]      netlink_unicast+0x449/0x710
[ 5263.407463][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5263.407463][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5263.407463][   T73]      ___sys_sendmsg+0xee/0x170
[ 5263.407463][   T73]      __sys_sendmsg+0xcd/0x170
[ 5263.407463][   T73]      do_syscall_64+0xc6/0x1e0
[ 5263.407463][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5263.407463][   T73] 
[ 5273.647770][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5273.648262][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5273.648262][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5273.648262][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5273.648262][   T73]      fib6_nh_init+0xa22/0x1580
[ 5273.648262][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5273.648262][   T73]      ip6_route_add+0x1c/0x140
[ 5273.648262][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5273.648262][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5273.648262][   T73]      netlink_rcv_skb+0x130/0x360
[ 5273.648262][   T73]      netlink_unicast+0x449/0x710
[ 5273.648262][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5273.648262][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5273.648262][   T73]      ___sys_sendmsg+0xee/0x170
[ 5273.648262][   T73]      __sys_sendmsg+0xcd/0x170
[ 5273.648262][   T73]      do_syscall_64+0xc6/0x1e0
[ 5273.648262][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5273.648262][   T73] 
[ 5273.650396][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5273.650396][   T73]      dst_init+0x84/0x4a0
[ 5273.650396][   T73]      dst_alloc+0x97/0x150
[ 5273.650396][   T73]      ip6_dst_alloc+0x23/0x90
[ 5273.650396][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5273.650396][   T73]      ip6_pol_route+0x56f/0x840
[ 5273.650396][   T73]      fib6_rule_lookup+0x456/0x630
[ 5273.650396][   T73]      ip6_route_input+0x59c/0xa50
[ 5273.650396][   T73]      ipv6_rcv+0x397/0x810
[ 5273.650396][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5273.650396][   T73]      process_backlog+0x101/0x620
[ 5273.650396][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5273.650396][   T73]      net_rx_action+0x495/0xbe0
[ 5273.650396][   T73]      __do_softirq+0x1b5/0x7f6
[ 5273.650396][   T73] 
[ 5273.652247][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5273.652247][   T73]      netdev_get_by_index+0x5e/0x80
[ 5273.652247][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5273.652247][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5273.652247][   T73]      ip6_route_add+0x1c/0x140
[ 5273.652247][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5273.652247][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5273.652247][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5273.652247][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5273.652247][   T73]      netlink_rcv_skb+0x130/0x360
[ 5273.652247][   T73]      netlink_unicast+0x449/0x710
[ 5273.652247][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5273.652247][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5273.652247][   T73]      ___sys_sendmsg+0xee/0x170
[ 5273.652247][   T73]      __sys_sendmsg+0xcd/0x170
[ 5273.652247][   T73]      do_syscall_64+0xc6/0x1e0
[ 5273.652247][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5273.652247][   T73] 
[ 5273.654472][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5273.654472][   T73]      netdev_get_by_index+0x5e/0x80
[ 5273.654472][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5273.654472][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5273.654472][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5273.654472][   T73]      ipv6_add_addr+0x411/0x2000
[ 5273.654472][   T73]      inet6_addr_add+0x30e/0xa40
[ 5273.654472][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5273.654472][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5273.654472][   T73]      netlink_rcv_skb+0x130/0x360
[ 5273.654472][   T73]      netlink_unicast+0x449/0x710
[ 5273.654472][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5273.654472][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5273.654472][   T73]      ___sys_sendmsg+0xee/0x170
[ 5273.654472][   T73]      __sys_sendmsg+0xcd/0x170
[ 5273.654472][   T73]      do_syscall_64+0xc6/0x1e0
[ 5273.654472][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5273.654472][   T73] 
[ 5273.656695][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5273.656695][   T73]      netdev_get_by_index+0x5e/0x80
[ 5273.656695][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5273.656695][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5273.656695][   T73]      ip6_route_add+0x1c/0x140
[ 5273.656695][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5273.656695][   T73]      addrconf_add_dev+0xe2/0x170
[ 5273.656695][   T73]      inet6_addr_add+0x12f/0xa40
[ 5273.656695][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5273.656695][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5273.656695][   T73]      netlink_rcv_skb+0x130/0x360
[ 5273.656695][   T73]      netlink_unicast+0x449/0x710
[ 5273.656695][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5273.656695][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5273.656695][   T73]      ___sys_sendmsg+0xee/0x170
[ 5273.656695][   T73]      __sys_sendmsg+0xcd/0x170
[ 5273.656695][   T73]      do_syscall_64+0xc6/0x1e0
[ 5273.656695][   T73] 
[ 5273.658881][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5273.658881][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5273.658881][   T73]      ipv6_find_idev+0x102/0x170
[ 5273.658881][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5273.658881][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5273.658881][   T73]      netlink_rcv_skb+0x130/0x360
[ 5273.658881][   T73]      netlink_unicast+0x449/0x710
[ 5273.658881][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5273.658881][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5273.658881][   T73]      ___sys_sendmsg+0xee/0x170
[ 5273.658881][   T73]      __sys_sendmsg+0xcd/0x170
[ 5273.658881][   T73]      do_syscall_64+0xc6/0x1e0
[ 5273.658881][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5273.658881][   T73] 
[ 5273.660697][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5273.660697][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5273.660697][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5273.660697][   T73]      ipv6_find_idev+0x102/0x170
[ 5273.660697][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5273.660697][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5273.660697][   T73]      netlink_rcv_skb+0x130/0x360
[ 5273.660697][   T73]      netlink_unicast+0x449/0x710
[ 5273.660697][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5273.660697][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5273.660697][   T73]      ___sys_sendmsg+0xee/0x170
[ 5273.660697][   T73]      __sys_sendmsg+0xcd/0x170
[ 5273.660697][   T73]      do_syscall_64+0xc6/0x1e0
[ 5273.660697][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5273.660697][   T73] 
[ 5273.662582][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5273.662904][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5273.662904][   T73]      netdev_get_by_index+0x5e/0x80
[ 5273.662904][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5273.662904][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5273.662904][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5273.662904][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5273.662904][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5273.662904][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5273.662904][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5273.662904][   T73]      addrconf_dad_begin+0x310/0x670
[ 5273.662904][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5273.662904][   T73]      process_one_work+0x84d/0x18a0
[ 5273.662904][   T73]      worker_thread+0x587/0xd30
[ 5273.662904][   T73]      kthread+0x28a/0x350
[ 5273.662904][   T73]      ret_from_fork+0x31/0x70
[ 5273.662904][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5273.662904][   T73] 
[ 5273.665043][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5273.665043][   T73]      netdev_get_by_index+0x5e/0x80
[ 5273.665043][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5273.665043][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5273.665043][   T73]      ip6_route_add+0x1c/0x140
[ 5273.665043][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5273.665043][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5273.665043][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5273.665043][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5273.665043][   T73]      netlink_rcv_skb+0x130/0x360
[ 5273.665043][   T73]      netlink_unicast+0x449/0x710
[ 5273.665043][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5273.665043][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5273.665043][   T73]      ___sys_sendmsg+0xee/0x170
[ 5273.665043][   T73]      __sys_sendmsg+0xcd/0x170
[ 5273.665043][   T73]      do_syscall_64+0xc6/0x1e0
[ 5273.665043][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5273.665043][   T73] 
[ 5273.667278][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5273.667278][   T73]      netdev_get_by_index+0x5e/0x80
[ 5273.667278][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5273.667278][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5273.667278][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5273.667278][   T73]      ipv6_add_addr+0x411/0x2000
[ 5273.667278][   T73]      inet6_addr_add+0x30e/0xa40
[ 5273.667278][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5273.667278][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5273.667278][   T73]      netlink_rcv_skb+0x130/0x360
[ 5273.667278][   T73]      netlink_unicast+0x449/0x710
[ 5273.667278][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5273.667278][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5273.667278][   T73]      ___sys_sendmsg+0xee/0x170
[ 5273.667278][   T73]      __sys_sendmsg+0xcd/0x170
[ 5273.667278][   T73]      do_syscall_64+0xc6/0x1e0
[ 5273.667278][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5273.667278][   T73] 
[ 5273.669519][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5273.669519][   T73]      netdev_get_by_index+0x5e/0x80
[ 5273.669519][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5273.669519][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5273.669519][   T73]      ip6_route_add+0x1c/0x140
[ 5273.669519][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5273.669519][   T73]      addrconf_add_dev+0xe2/0x170
[ 5273.669519][   T73]      inet6_addr_add+0x12f/0xa40
[ 5273.669519][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5273.669519][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5273.669519][   T73]      netlink_rcv_skb+0x130/0x360
[ 5273.669519][   T73]      netlink_unicast+0x449/0x710
[ 5273.669519][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5273.669519][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5273.669519][   T73]      ___sys_sendmsg+0xee/0x170
[ 5273.669519][   T73]      __sys_sendmsg+0xcd/0x170
[ 5273.669519][   T73]      do_syscall_64+0xc6/0x1e0
[ 5273.669519][   T73] 
[ 5273.671710][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5273.671710][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5273.671710][   T73]      ipv6_find_idev+0x102/0x170
[ 5273.671710][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5273.671710][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5273.671710][   T73]      netlink_rcv_skb+0x130/0x360
[ 5273.671710][   T73]      netlink_unicast+0x449/0x710
[ 5273.671710][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5273.671710][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5273.671710][   T73]      ___sys_sendmsg+0xee/0x170
[ 5273.671710][   T73]      __sys_sendmsg+0xcd/0x170
[ 5273.671710][   T73]      do_syscall_64+0xc6/0x1e0
[ 5273.671710][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5273.671710][   T73] 
[ 5273.673433][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5273.673433][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5273.673433][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5273.673433][   T73]      ipv6_find_idev+0x102/0x170
[ 5273.673433][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5273.673433][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5273.673433][   T73]      netlink_rcv_skb+0x130/0x360
[ 5273.673433][   T73]      netlink_unicast+0x449/0x710
[ 5273.673433][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5273.673433][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5273.673433][   T73]      ___sys_sendmsg+0xee/0x170
[ 5273.673433][   T73]      __sys_sendmsg+0xcd/0x170
[ 5273.673433][   T73]      do_syscall_64+0xc6/0x1e0
[ 5273.673433][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5273.673433][   T73] 
[ 5273.675327][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5273.675627][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5273.675627][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5273.675627][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5273.675627][   T73]      fib6_nh_init+0xa22/0x1580
[ 5273.675627][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5273.675627][   T73]      ip6_route_add+0x1c/0x140
[ 5273.675627][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5273.675627][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5273.675627][   T73]      netlink_rcv_skb+0x130/0x360
[ 5273.675627][   T73]      netlink_unicast+0x449/0x710
[ 5273.675627][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5273.675627][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5273.675627][   T73]      ___sys_sendmsg+0xee/0x170
[ 5273.675627][   T73]      __sys_sendmsg+0xcd/0x170
[ 5273.675627][   T73]      do_syscall_64+0xc6/0x1e0
[ 5273.675627][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5273.675627][   T73] 
[ 5273.677930][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5273.677930][   T73]      dst_init+0x84/0x4a0
[ 5273.677930][   T73]      dst_alloc+0x97/0x150
[ 5273.677930][   T73]      ip6_dst_alloc+0x23/0x90
[ 5273.677930][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5273.677930][   T73]      ip6_pol_route+0x56f/0x840
[ 5273.677930][   T73]      fib6_rule_lookup+0x456/0x630
[ 5273.677930][   T73]      ip6_route_input+0x59c/0xa50
[ 5273.677930][   T73]      ipv6_rcv+0x397/0x810
[ 5273.677930][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5273.677930][   T73]      process_backlog+0x101/0x620
[ 5273.677930][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5273.677930][   T73]      net_rx_action+0x495/0xbe0
[ 5273.677930][   T73]      __do_softirq+0x1b5/0x7f6
[ 5273.677930][   T73] 
[ 5273.679992][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5273.679992][   T73]      netdev_get_by_index+0x5e/0x80
[ 5273.679992][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5273.679992][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5273.679992][   T73]      ip6_route_add+0x1c/0x140
[ 5273.679992][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5273.679992][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5273.679992][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5273.679992][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5273.679992][   T73]      netlink_rcv_skb+0x130/0x360
[ 5273.679992][   T73]      netlink_unicast+0x449/0x710
[ 5273.679992][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5273.679992][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5273.679992][   T73]      ___sys_sendmsg+0xee/0x170
[ 5273.679992][   T73]      __sys_sendmsg+0xcd/0x170
[ 5273.679992][   T73]      do_syscall_64+0xc6/0x1e0
[ 5273.679992][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5273.679992][   T73] 
[ 5273.682465][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5273.682465][   T73]      netdev_get_by_index+0x5e/0x80
[ 5273.682465][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5273.682465][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5273.682465][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5273.682465][   T73]      ipv6_add_addr+0x411/0x2000
[ 5273.682465][   T73]      inet6_addr_add+0x30e/0xa40
[ 5273.682465][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5273.682465][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5273.682465][   T73]      netlink_rcv_skb+0x130/0x360
[ 5273.682465][   T73]      netlink_unicast+0x449/0x710
[ 5273.682465][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5273.682465][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5273.682465][   T73]      ___sys_sendmsg+0xee/0x170
[ 5273.682465][   T73]      __sys_sendmsg+0xcd/0x170
[ 5273.682465][   T73]      do_syscall_64+0xc6/0x1e0
[ 5273.682465][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5273.682465][   T73] 
[ 5273.684882][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5273.684882][   T73]      netdev_get_by_index+0x5e/0x80
[ 5273.684882][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5273.684882][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5273.684882][   T73]      ip6_route_add+0x1c/0x140
[ 5273.684882][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5273.684882][   T73]      addrconf_add_dev+0xe2/0x170
[ 5273.684882][   T73]      inet6_addr_add+0x12f/0xa40
[ 5273.684882][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5273.684882][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5273.684882][   T73]      netlink_rcv_skb+0x130/0x360
[ 5273.684882][   T73]      netlink_unicast+0x449/0x710
[ 5273.684882][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5273.684882][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5273.684882][   T73]      ___sys_sendmsg+0xee/0x170
[ 5273.684882][   T73]      __sys_sendmsg+0xcd/0x170
[ 5273.684882][   T73]      do_syscall_64+0xc6/0x1e0
[ 5273.684882][   T73] 
[ 5273.687280][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5273.687280][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5273.687280][   T73]      ipv6_find_idev+0x102/0x170
[ 5273.687280][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5273.687280][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5273.687280][   T73]      netlink_rcv_skb+0x130/0x360
[ 5273.687280][   T73]      netlink_unicast+0x449/0x710
[ 5273.687280][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5273.687280][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5273.687280][   T73]      ___sys_sendmsg+0xee/0x170
[ 5273.687280][   T73]      __sys_sendmsg+0xcd/0x170
[ 5273.687280][   T73]      do_syscall_64+0xc6/0x1e0
[ 5273.687280][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5273.687280][   T73] 
[ 5273.689184][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5273.689184][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5273.689184][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5273.689184][   T73]      ipv6_find_idev+0x102/0x170
[ 5273.689184][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5273.689184][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5273.689184][   T73]      netlink_rcv_skb+0x130/0x360
[ 5273.689184][   T73]      netlink_unicast+0x449/0x710
[ 5273.689184][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5273.689184][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5273.689184][   T73]      ___sys_sendmsg+0xee/0x170
[ 5273.689184][   T73]      __sys_sendmsg+0xcd/0x170
[ 5273.689184][   T73]      do_syscall_64+0xc6/0x1e0
[ 5273.689184][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5273.689184][   T73] 
[ 5273.691707][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5273.692004][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5273.692004][   T73]      netdev_get_by_index+0x5e/0x80
[ 5273.692004][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5273.692004][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5273.692004][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5273.692004][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5273.692004][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5273.692004][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5273.692004][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5273.692004][   T73]      addrconf_dad_begin+0x310/0x670
[ 5273.692004][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5273.692004][   T73]      process_one_work+0x84d/0x18a0
[ 5273.692004][   T73]      worker_thread+0x587/0xd30
[ 5273.692004][   T73]      kthread+0x28a/0x350
[ 5273.692004][   T73]      ret_from_fork+0x31/0x70
[ 5273.692004][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5273.692004][   T73] 
[ 5273.694119][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5273.694119][   T73]      netdev_get_by_index+0x5e/0x80
[ 5273.694119][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5273.694119][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5273.694119][   T73]      ip6_route_add+0x1c/0x140
[ 5273.694119][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5273.694119][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5273.694119][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5273.694119][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5273.694119][   T73]      netlink_rcv_skb+0x130/0x360
[ 5273.694119][   T73]      netlink_unicast+0x449/0x710
[ 5273.694119][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5273.694119][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5273.694119][   T73]      ___sys_sendmsg+0xee/0x170
[ 5273.694119][   T73]      __sys_sendmsg+0xcd/0x170
[ 5273.694119][   T73]      do_syscall_64+0xc6/0x1e0
[ 5273.694119][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5273.694119][   T73] 
[ 5273.696468][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5273.696468][   T73]      netdev_get_by_index+0x5e/0x80
[ 5273.696468][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5273.696468][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5273.696468][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5273.696468][   T73]      ipv6_add_addr+0x411/0x2000
[ 5273.696468][   T73]      inet6_addr_add+0x30e/0xa40
[ 5273.696468][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5273.696468][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5273.696468][   T73]      netlink_rcv_skb+0x130/0x360
[ 5273.696468][   T73]      netlink_unicast+0x449/0x710
[ 5273.696468][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5273.696468][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5273.696468][   T73]      ___sys_sendmsg+0xee/0x170
[ 5273.696468][   T73]      __sys_sendmsg+0xcd/0x170
[ 5273.696468][   T73]      do_syscall_64+0xc6/0x1e0
[ 5273.696468][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5273.696468][   T73] 
[ 5273.698941][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5273.698941][   T73]      netdev_get_by_index+0x5e/0x80
[ 5273.698941][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5273.698941][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5273.698941][   T73]      ip6_route_add+0x1c/0x140
[ 5273.698941][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5273.698941][   T73]      addrconf_add_dev+0xe2/0x170
[ 5273.698941][   T73]      inet6_addr_add+0x12f/0xa40
[ 5273.698941][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5273.698941][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5273.698941][   T73]      netlink_rcv_skb+0x130/0x360
[ 5273.698941][   T73]      netlink_unicast+0x449/0x710
[ 5273.698941][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5273.698941][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5273.698941][   T73]      ___sys_sendmsg+0xee/0x170
[ 5273.698941][   T73]      __sys_sendmsg+0xcd/0x170
[ 5273.698941][   T73]      do_syscall_64+0xc6/0x1e0
[ 5273.698941][   T73] 
[ 5273.701383][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5273.701383][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5273.701383][   T73]      ipv6_find_idev+0x102/0x170
[ 5273.701383][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5273.701383][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5273.701383][   T73]      netlink_rcv_skb+0x130/0x360
[ 5273.701383][   T73]      netlink_unicast+0x449/0x710
[ 5273.701383][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5273.701383][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5273.701383][   T73]      ___sys_sendmsg+0xee/0x170
[ 5273.701383][   T73]      __sys_sendmsg+0xcd/0x170
[ 5273.701383][   T73]      do_syscall_64+0xc6/0x1e0
[ 5273.701383][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5273.701383][   T73] 
[ 5273.703291][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5273.703291][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5273.703291][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5273.703291][   T73]      ipv6_find_idev+0x102/0x170
[ 5273.703291][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5273.703291][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5273.703291][   T73]      netlink_rcv_skb+0x130/0x360
[ 5273.703291][   T73]      netlink_unicast+0x449/0x710
[ 5273.703291][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5273.703291][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5273.703291][   T73]      ___sys_sendmsg+0xee/0x170
[ 5273.703291][   T73]      __sys_sendmsg+0xcd/0x170
[ 5273.703291][   T73]      do_syscall_64+0xc6/0x1e0
[ 5273.703291][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5273.703291][   T73] 
[ 5283.807770][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5283.808223][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5283.808223][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5283.808223][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5283.808223][   T73]      fib6_nh_init+0xa22/0x1580
[ 5283.808223][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5283.808223][   T73]      ip6_route_add+0x1c/0x140
[ 5283.808223][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5283.808223][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5283.808223][   T73]      netlink_rcv_skb+0x130/0x360
[ 5283.808223][   T73]      netlink_unicast+0x449/0x710
[ 5283.808223][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5283.808223][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5283.808223][   T73]      ___sys_sendmsg+0xee/0x170
[ 5283.808223][   T73]      __sys_sendmsg+0xcd/0x170
[ 5283.808223][   T73]      do_syscall_64+0xc6/0x1e0
[ 5283.808223][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5283.808223][   T73] 
[ 5283.810352][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5283.810352][   T73]      dst_init+0x84/0x4a0
[ 5283.810352][   T73]      dst_alloc+0x97/0x150
[ 5283.810352][   T73]      ip6_dst_alloc+0x23/0x90
[ 5283.810352][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5283.810352][   T73]      ip6_pol_route+0x56f/0x840
[ 5283.810352][   T73]      fib6_rule_lookup+0x456/0x630
[ 5283.810352][   T73]      ip6_route_input+0x59c/0xa50
[ 5283.810352][   T73]      ipv6_rcv+0x397/0x810
[ 5283.810352][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5283.810352][   T73]      process_backlog+0x101/0x620
[ 5283.810352][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5283.810352][   T73]      net_rx_action+0x495/0xbe0
[ 5283.810352][   T73]      __do_softirq+0x1b5/0x7f6
[ 5283.810352][   T73] 
[ 5283.812168][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5283.812168][   T73]      netdev_get_by_index+0x5e/0x80
[ 5283.812168][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5283.812168][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5283.812168][   T73]      ip6_route_add+0x1c/0x140
[ 5283.812168][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5283.812168][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5283.812168][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5283.812168][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5283.812168][   T73]      netlink_rcv_skb+0x130/0x360
[ 5283.812168][   T73]      netlink_unicast+0x449/0x710
[ 5283.812168][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5283.812168][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5283.812168][   T73]      ___sys_sendmsg+0xee/0x170
[ 5283.812168][   T73]      __sys_sendmsg+0xcd/0x170
[ 5283.812168][   T73]      do_syscall_64+0xc6/0x1e0
[ 5283.812168][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5283.812168][   T73] 
[ 5283.814404][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5283.814404][   T73]      netdev_get_by_index+0x5e/0x80
[ 5283.814404][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5283.814404][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5283.814404][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5283.814404][   T73]      ipv6_add_addr+0x411/0x2000
[ 5283.814404][   T73]      inet6_addr_add+0x30e/0xa40
[ 5283.814404][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5283.814404][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5283.814404][   T73]      netlink_rcv_skb+0x130/0x360
[ 5283.814404][   T73]      netlink_unicast+0x449/0x710
[ 5283.814404][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5283.814404][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5283.814404][   T73]      ___sys_sendmsg+0xee/0x170
[ 5283.814404][   T73]      __sys_sendmsg+0xcd/0x170
[ 5283.814404][   T73]      do_syscall_64+0xc6/0x1e0
[ 5283.814404][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5283.814404][   T73] 
[ 5283.816639][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5283.816639][   T73]      netdev_get_by_index+0x5e/0x80
[ 5283.816639][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5283.816639][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5283.816639][   T73]      ip6_route_add+0x1c/0x140
[ 5283.816639][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5283.816639][   T73]      addrconf_add_dev+0xe2/0x170
[ 5283.816639][   T73]      inet6_addr_add+0x12f/0xa40
[ 5283.816639][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5283.816639][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5283.816639][   T73]      netlink_rcv_skb+0x130/0x360
[ 5283.816639][   T73]      netlink_unicast+0x449/0x710
[ 5283.816639][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5283.816639][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5283.816639][   T73]      ___sys_sendmsg+0xee/0x170
[ 5283.816639][   T73]      __sys_sendmsg+0xcd/0x170
[ 5283.816639][   T73]      do_syscall_64+0xc6/0x1e0
[ 5283.816639][   T73] 
[ 5283.818827][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5283.818827][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5283.818827][   T73]      ipv6_find_idev+0x102/0x170
[ 5283.818827][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5283.818827][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5283.818827][   T73]      netlink_rcv_skb+0x130/0x360
[ 5283.818827][   T73]      netlink_unicast+0x449/0x710
[ 5283.818827][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5283.818827][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5283.818827][   T73]      ___sys_sendmsg+0xee/0x170
[ 5283.818827][   T73]      __sys_sendmsg+0xcd/0x170
[ 5283.818827][   T73]      do_syscall_64+0xc6/0x1e0
[ 5283.818827][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5283.818827][   T73] 
[ 5283.820554][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5283.820554][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5283.820554][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5283.820554][   T73]      ipv6_find_idev+0x102/0x170
[ 5283.820554][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5283.820554][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5283.820554][   T73]      netlink_rcv_skb+0x130/0x360
[ 5283.820554][   T73]      netlink_unicast+0x449/0x710
[ 5283.820554][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5283.820554][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5283.820554][   T73]      ___sys_sendmsg+0xee/0x170
[ 5283.820554][   T73]      __sys_sendmsg+0xcd/0x170
[ 5283.820554][   T73]      do_syscall_64+0xc6/0x1e0
[ 5283.820554][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5283.820554][   T73] 
[ 5283.822438][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5283.822750][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5283.822750][   T73]      netdev_get_by_index+0x5e/0x80
[ 5283.822750][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5283.822750][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5283.822750][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5283.822750][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5283.822750][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5283.822750][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5283.822750][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5283.822750][   T73]      addrconf_dad_begin+0x310/0x670
[ 5283.822750][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5283.822750][   T73]      process_one_work+0x84d/0x18a0
[ 5283.822750][   T73]      worker_thread+0x587/0xd30
[ 5283.822750][   T73]      kthread+0x28a/0x350
[ 5283.822750][   T73]      ret_from_fork+0x31/0x70
[ 5283.822750][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5283.822750][   T73] 
[ 5283.824886][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5283.824886][   T73]      netdev_get_by_index+0x5e/0x80
[ 5283.824886][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5283.824886][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5283.824886][   T73]      ip6_route_add+0x1c/0x140
[ 5283.824886][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5283.824886][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5283.824886][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5283.824886][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5283.824886][   T73]      netlink_rcv_skb+0x130/0x360
[ 5283.824886][   T73]      netlink_unicast+0x449/0x710
[ 5283.824886][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5283.824886][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5283.824886][   T73]      ___sys_sendmsg+0xee/0x170
[ 5283.824886][   T73]      __sys_sendmsg+0xcd/0x170
[ 5283.824886][   T73]      do_syscall_64+0xc6/0x1e0
[ 5283.824886][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5283.824886][   T73] 
[ 5283.827126][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5283.827126][   T73]      netdev_get_by_index+0x5e/0x80
[ 5283.827126][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5283.827126][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5283.827126][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5283.827126][   T73]      ipv6_add_addr+0x411/0x2000
[ 5283.827126][   T73]      inet6_addr_add+0x30e/0xa40
[ 5283.827126][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5283.827126][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5283.827126][   T73]      netlink_rcv_skb+0x130/0x360
[ 5283.827126][   T73]      netlink_unicast+0x449/0x710
[ 5283.827126][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5283.827126][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5283.827126][   T73]      ___sys_sendmsg+0xee/0x170
[ 5283.827126][   T73]      __sys_sendmsg+0xcd/0x170
[ 5283.827126][   T73]      do_syscall_64+0xc6/0x1e0
[ 5283.827126][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5283.827126][   T73] 
[ 5283.829339][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5283.829339][   T73]      netdev_get_by_index+0x5e/0x80
[ 5283.829339][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5283.829339][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5283.829339][   T73]      ip6_route_add+0x1c/0x140
[ 5283.829339][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5283.829339][   T73]      addrconf_add_dev+0xe2/0x170
[ 5283.829339][   T73]      inet6_addr_add+0x12f/0xa40
[ 5283.829339][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5283.829339][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5283.829339][   T73]      netlink_rcv_skb+0x130/0x360
[ 5283.829339][   T73]      netlink_unicast+0x449/0x710
[ 5283.829339][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5283.829339][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5283.829339][   T73]      ___sys_sendmsg+0xee/0x170
[ 5283.829339][   T73]      __sys_sendmsg+0xcd/0x170
[ 5283.829339][   T73]      do_syscall_64+0xc6/0x1e0
[ 5283.829339][   T73] 
[ 5283.831545][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5283.831545][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5283.831545][   T73]      ipv6_find_idev+0x102/0x170
[ 5283.831545][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5283.831545][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5283.831545][   T73]      netlink_rcv_skb+0x130/0x360
[ 5283.831545][   T73]      netlink_unicast+0x449/0x710
[ 5283.831545][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5283.831545][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5283.831545][   T73]      ___sys_sendmsg+0xee/0x170
[ 5283.831545][   T73]      __sys_sendmsg+0xcd/0x170
[ 5283.831545][   T73]      do_syscall_64+0xc6/0x1e0
[ 5283.831545][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5283.831545][   T73] 
[ 5283.833278][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5283.833278][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5283.833278][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5283.833278][   T73]      ipv6_find_idev+0x102/0x170
[ 5283.833278][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5283.833278][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5283.833278][   T73]      netlink_rcv_skb+0x130/0x360
[ 5283.833278][   T73]      netlink_unicast+0x449/0x710
[ 5283.833278][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5283.833278][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5283.833278][   T73]      ___sys_sendmsg+0xee/0x170
[ 5283.833278][   T73]      __sys_sendmsg+0xcd/0x170
[ 5283.833278][   T73]      do_syscall_64+0xc6/0x1e0
[ 5283.833278][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5283.833278][   T73] 
[ 5283.835168][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5283.835470][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5283.835470][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5283.835470][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5283.835470][   T73]      fib6_nh_init+0xa22/0x1580
[ 5283.835470][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5283.835470][   T73]      ip6_route_add+0x1c/0x140
[ 5283.835470][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5283.835470][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5283.835470][   T73]      netlink_rcv_skb+0x130/0x360
[ 5283.835470][   T73]      netlink_unicast+0x449/0x710
[ 5283.835470][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5283.835470][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5283.835470][   T73]      ___sys_sendmsg+0xee/0x170
[ 5283.835470][   T73]      __sys_sendmsg+0xcd/0x170
[ 5283.835470][   T73]      do_syscall_64+0xc6/0x1e0
[ 5283.835470][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5283.835470][   T73] 
[ 5283.837657][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5283.837657][   T73]      dst_init+0x84/0x4a0
[ 5283.837657][   T73]      dst_alloc+0x97/0x150
[ 5283.837657][   T73]      ip6_dst_alloc+0x23/0x90
[ 5283.837657][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5283.837657][   T73]      ip6_pol_route+0x56f/0x840
[ 5283.837657][   T73]      fib6_rule_lookup+0x456/0x630
[ 5283.837657][   T73]      ip6_route_input+0x59c/0xa50
[ 5283.837657][   T73]      ipv6_rcv+0x397/0x810
[ 5283.837657][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5283.837657][   T73]      process_backlog+0x101/0x620
[ 5283.837657][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5283.837657][   T73]      net_rx_action+0x495/0xbe0
[ 5283.837657][   T73]      __do_softirq+0x1b5/0x7f6
[ 5283.837657][   T73] 
[ 5283.839552][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5283.839552][   T73]      netdev_get_by_index+0x5e/0x80
[ 5283.839552][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5283.839552][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5283.839552][   T73]      ip6_route_add+0x1c/0x140
[ 5283.839552][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5283.839552][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5283.839552][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5283.839552][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5283.839552][   T73]      netlink_rcv_skb+0x130/0x360
[ 5283.839552][   T73]      netlink_unicast+0x449/0x710
[ 5283.839552][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5283.839552][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5283.839552][   T73]      ___sys_sendmsg+0xee/0x170
[ 5283.839552][   T73]      __sys_sendmsg+0xcd/0x170
[ 5283.839552][   T73]      do_syscall_64+0xc6/0x1e0
[ 5283.839552][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5283.839552][   T73] 
[ 5283.841970][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5283.841970][   T73]      netdev_get_by_index+0x5e/0x80
[ 5283.841970][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5283.841970][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5283.841970][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5283.841970][   T73]      ipv6_add_addr+0x411/0x2000
[ 5283.841970][   T73]      inet6_addr_add+0x30e/0xa40
[ 5283.841970][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5283.841970][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5283.841970][   T73]      netlink_rcv_skb+0x130/0x360
[ 5283.841970][   T73]      netlink_unicast+0x449/0x710
[ 5283.841970][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5283.841970][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5283.841970][   T73]      ___sys_sendmsg+0xee/0x170
[ 5283.841970][   T73]      __sys_sendmsg+0xcd/0x170
[ 5283.841970][   T73]      do_syscall_64+0xc6/0x1e0
[ 5283.841970][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5283.841970][   T73] 
[ 5283.844275][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5283.844275][   T73]      netdev_get_by_index+0x5e/0x80
[ 5283.844275][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5283.844275][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5283.844275][   T73]      ip6_route_add+0x1c/0x140
[ 5283.844275][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5283.844275][   T73]      addrconf_add_dev+0xe2/0x170
[ 5283.844275][   T73]      inet6_addr_add+0x12f/0xa40
[ 5283.844275][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5283.844275][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5283.844275][   T73]      netlink_rcv_skb+0x130/0x360
[ 5283.844275][   T73]      netlink_unicast+0x449/0x710
[ 5283.844275][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5283.844275][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5283.844275][   T73]      ___sys_sendmsg+0xee/0x170
[ 5283.844275][   T73]      __sys_sendmsg+0xcd/0x170
[ 5283.844275][   T73]      do_syscall_64+0xc6/0x1e0
[ 5283.844275][   T73] 
[ 5283.846544][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5283.846544][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5283.846544][   T73]      ipv6_find_idev+0x102/0x170
[ 5283.846544][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5283.846544][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5283.846544][   T73]      netlink_rcv_skb+0x130/0x360
[ 5283.846544][   T73]      netlink_unicast+0x449/0x710
[ 5283.846544][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5283.846544][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5283.846544][   T73]      ___sys_sendmsg+0xee/0x170
[ 5283.846544][   T73]      __sys_sendmsg+0xcd/0x170
[ 5283.846544][   T73]      do_syscall_64+0xc6/0x1e0
[ 5283.846544][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5283.846544][   T73] 
[ 5283.848333][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5283.848333][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5283.848333][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5283.848333][   T73]      ipv6_find_idev+0x102/0x170
[ 5283.848333][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5283.848333][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5283.848333][   T73]      netlink_rcv_skb+0x130/0x360
[ 5283.848333][   T73]      netlink_unicast+0x449/0x710
[ 5283.848333][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5283.848333][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5283.848333][   T73]      ___sys_sendmsg+0xee/0x170
[ 5283.848333][   T73]      __sys_sendmsg+0xcd/0x170
[ 5283.848333][   T73]      do_syscall_64+0xc6/0x1e0
[ 5283.848333][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5283.848333][   T73] 
[ 5283.850727][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5283.851030][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5283.851030][   T73]      netdev_get_by_index+0x5e/0x80
[ 5283.851030][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5283.851030][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5283.851030][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5283.851030][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5283.851030][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5283.851030][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5283.851030][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5283.851030][   T73]      addrconf_dad_begin+0x310/0x670
[ 5283.851030][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5283.851030][   T73]      process_one_work+0x84d/0x18a0
[ 5283.851030][   T73]      worker_thread+0x587/0xd30
[ 5283.851030][   T73]      kthread+0x28a/0x350
[ 5283.851030][   T73]      ret_from_fork+0x31/0x70
[ 5283.851030][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5283.851030][   T73] 
[ 5283.853168][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5283.853168][   T73]      netdev_get_by_index+0x5e/0x80
[ 5283.853168][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5283.853168][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5283.853168][   T73]      ip6_route_add+0x1c/0x140
[ 5283.853168][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5283.853168][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5283.853168][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5283.853168][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5283.853168][   T73]      netlink_rcv_skb+0x130/0x360
[ 5283.853168][   T73]      netlink_unicast+0x449/0x710
[ 5283.853168][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5283.853168][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5283.853168][   T73]      ___sys_sendmsg+0xee/0x170
[ 5283.853168][   T73]      __sys_sendmsg+0xcd/0x170
[ 5283.853168][   T73]      do_syscall_64+0xc6/0x1e0
[ 5283.853168][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5283.853168][   T73] 
[ 5283.855477][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5283.855477][   T73]      netdev_get_by_index+0x5e/0x80
[ 5283.855477][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5283.855477][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5283.855477][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5283.855477][   T73]      ipv6_add_addr+0x411/0x2000
[ 5283.855477][   T73]      inet6_addr_add+0x30e/0xa40
[ 5283.855477][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5283.855477][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5283.855477][   T73]      netlink_rcv_skb+0x130/0x360
[ 5283.855477][   T73]      netlink_unicast+0x449/0x710
[ 5283.855477][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5283.855477][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5283.855477][   T73]      ___sys_sendmsg+0xee/0x170
[ 5283.855477][   T73]      __sys_sendmsg+0xcd/0x170
[ 5283.855477][   T73]      do_syscall_64+0xc6/0x1e0
[ 5283.855477][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5283.855477][   T73] 
[ 5283.857793][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5283.857793][   T73]      netdev_get_by_index+0x5e/0x80
[ 5283.857793][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5283.857793][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5283.857793][   T73]      ip6_route_add+0x1c/0x140
[ 5283.857793][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5283.857793][   T73]      addrconf_add_dev+0xe2/0x170
[ 5283.857793][   T73]      inet6_addr_add+0x12f/0xa40
[ 5283.857793][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5283.857793][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5283.857793][   T73]      netlink_rcv_skb+0x130/0x360
[ 5283.857793][   T73]      netlink_unicast+0x449/0x710
[ 5283.857793][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5283.857793][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5283.857793][   T73]      ___sys_sendmsg+0xee/0x170
[ 5283.857793][   T73]      __sys_sendmsg+0xcd/0x170
[ 5283.857793][   T73]      do_syscall_64+0xc6/0x1e0
[ 5283.857793][   T73] 
[ 5283.860139][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5283.860139][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5283.860139][   T73]      ipv6_find_idev+0x102/0x170
[ 5283.860139][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5283.860139][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5283.860139][   T73]      netlink_rcv_skb+0x130/0x360
[ 5283.860139][   T73]      netlink_unicast+0x449/0x710
[ 5283.860139][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5283.860139][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5283.860139][   T73]      ___sys_sendmsg+0xee/0x170
[ 5283.860139][   T73]      __sys_sendmsg+0xcd/0x170
[ 5283.860139][   T73]      do_syscall_64+0xc6/0x1e0
[ 5283.860139][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5283.860139][   T73] 
[ 5283.899944][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5283.899944][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5283.899944][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5283.899944][   T73]      ipv6_find_idev+0x102/0x170
[ 5283.899944][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5283.899944][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5283.899944][   T73]      netlink_rcv_skb+0x130/0x360
[ 5283.899944][   T73]      netlink_unicast+0x449/0x710
[ 5283.899944][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5283.899944][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5283.899944][   T73]      ___sys_sendmsg+0xee/0x170
[ 5283.899944][   T73]      __sys_sendmsg+0xcd/0x170
[ 5283.899944][   T73]      do_syscall_64+0xc6/0x1e0
[ 5283.899944][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5283.899944][   T73] 
[ 5294.143787][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5294.144324][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5294.144324][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5294.144324][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5294.144324][   T73]      fib6_nh_init+0xa22/0x1580
[ 5294.144324][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5294.144324][   T73]      ip6_route_add+0x1c/0x140
[ 5294.144324][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5294.144324][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5294.144324][   T73]      netlink_rcv_skb+0x130/0x360
[ 5294.144324][   T73]      netlink_unicast+0x449/0x710
[ 5294.144324][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5294.144324][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5294.144324][   T73]      ___sys_sendmsg+0xee/0x170
[ 5294.144324][   T73]      __sys_sendmsg+0xcd/0x170
[ 5294.144324][   T73]      do_syscall_64+0xc6/0x1e0
[ 5294.144324][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5294.144324][   T73] 
[ 5294.146443][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5294.146443][   T73]      dst_init+0x84/0x4a0
[ 5294.146443][   T73]      dst_alloc+0x97/0x150
[ 5294.146443][   T73]      ip6_dst_alloc+0x23/0x90
[ 5294.146443][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5294.146443][   T73]      ip6_pol_route+0x56f/0x840
[ 5294.146443][   T73]      fib6_rule_lookup+0x456/0x630
[ 5294.146443][   T73]      ip6_route_input+0x59c/0xa50
[ 5294.146443][   T73]      ipv6_rcv+0x397/0x810
[ 5294.146443][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5294.146443][   T73]      process_backlog+0x101/0x620
[ 5294.146443][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5294.146443][   T73]      net_rx_action+0x495/0xbe0
[ 5294.146443][   T73]      __do_softirq+0x1b5/0x7f6
[ 5294.146443][   T73] 
[ 5294.148263][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5294.148263][   T73]      netdev_get_by_index+0x5e/0x80
[ 5294.148263][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5294.148263][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5294.148263][   T73]      ip6_route_add+0x1c/0x140
[ 5294.148263][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5294.148263][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5294.148263][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5294.148263][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5294.148263][   T73]      netlink_rcv_skb+0x130/0x360
[ 5294.148263][   T73]      netlink_unicast+0x449/0x710
[ 5294.148263][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5294.148263][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5294.148263][   T73]      ___sys_sendmsg+0xee/0x170
[ 5294.148263][   T73]      __sys_sendmsg+0xcd/0x170
[ 5294.148263][   T73]      do_syscall_64+0xc6/0x1e0
[ 5294.148263][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5294.148263][   T73] 
[ 5294.150511][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5294.150511][   T73]      netdev_get_by_index+0x5e/0x80
[ 5294.150511][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5294.150511][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5294.150511][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5294.150511][   T73]      ipv6_add_addr+0x411/0x2000
[ 5294.150511][   T73]      inet6_addr_add+0x30e/0xa40
[ 5294.150511][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5294.150511][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5294.150511][   T73]      netlink_rcv_skb+0x130/0x360
[ 5294.150511][   T73]      netlink_unicast+0x449/0x710
[ 5294.150511][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5294.150511][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5294.150511][   T73]      ___sys_sendmsg+0xee/0x170
[ 5294.150511][   T73]      __sys_sendmsg+0xcd/0x170
[ 5294.150511][   T73]      do_syscall_64+0xc6/0x1e0
[ 5294.150511][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5294.150511][   T73] 
[ 5294.152721][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5294.152721][   T73]      netdev_get_by_index+0x5e/0x80
[ 5294.152721][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5294.152721][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5294.152721][   T73]      ip6_route_add+0x1c/0x140
[ 5294.152721][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5294.152721][   T73]      addrconf_add_dev+0xe2/0x170
[ 5294.152721][   T73]      inet6_addr_add+0x12f/0xa40
[ 5294.152721][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5294.152721][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5294.152721][   T73]      netlink_rcv_skb+0x130/0x360
[ 5294.152721][   T73]      netlink_unicast+0x449/0x710
[ 5294.152721][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5294.152721][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5294.152721][   T73]      ___sys_sendmsg+0xee/0x170
[ 5294.152721][   T73]      __sys_sendmsg+0xcd/0x170
[ 5294.152721][   T73]      do_syscall_64+0xc6/0x1e0
[ 5294.152721][   T73] 
[ 5294.154897][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5294.154897][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5294.154897][   T73]      ipv6_find_idev+0x102/0x170
[ 5294.154897][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5294.154897][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5294.154897][   T73]      netlink_rcv_skb+0x130/0x360
[ 5294.154897][   T73]      netlink_unicast+0x449/0x710
[ 5294.154897][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5294.154897][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5294.154897][   T73]      ___sys_sendmsg+0xee/0x170
[ 5294.154897][   T73]      __sys_sendmsg+0xcd/0x170
[ 5294.154897][   T73]      do_syscall_64+0xc6/0x1e0
[ 5294.154897][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5294.154897][   T73] 
[ 5294.156612][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5294.156612][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5294.156612][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5294.156612][   T73]      ipv6_find_idev+0x102/0x170
[ 5294.156612][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5294.156612][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5294.156612][   T73]      netlink_rcv_skb+0x130/0x360
[ 5294.156612][   T73]      netlink_unicast+0x449/0x710
[ 5294.156612][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5294.156612][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5294.156612][   T73]      ___sys_sendmsg+0xee/0x170
[ 5294.156612][   T73]      __sys_sendmsg+0xcd/0x170
[ 5294.156612][   T73]      do_syscall_64+0xc6/0x1e0
[ 5294.156612][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5294.156612][   T73] 
[ 5294.158503][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5294.158822][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5294.158822][   T73]      netdev_get_by_index+0x5e/0x80
[ 5294.158822][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5294.158822][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5294.158822][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5294.158822][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5294.158822][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5294.158822][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5294.158822][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5294.158822][   T73]      addrconf_dad_begin+0x310/0x670
[ 5294.158822][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5294.158822][   T73]      process_one_work+0x84d/0x18a0
[ 5294.158822][   T73]      worker_thread+0x587/0xd30
[ 5294.158822][   T73]      kthread+0x28a/0x350
[ 5294.158822][   T73]      ret_from_fork+0x31/0x70
[ 5294.158822][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5294.158822][   T73] 
[ 5294.160969][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5294.160969][   T73]      netdev_get_by_index+0x5e/0x80
[ 5294.160969][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5294.160969][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5294.160969][   T73]      ip6_route_add+0x1c/0x140
[ 5294.160969][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5294.160969][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5294.160969][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5294.160969][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5294.160969][   T73]      netlink_rcv_skb+0x130/0x360
[ 5294.160969][   T73]      netlink_unicast+0x449/0x710
[ 5294.160969][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5294.160969][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5294.160969][   T73]      ___sys_sendmsg+0xee/0x170
[ 5294.160969][   T73]      __sys_sendmsg+0xcd/0x170
[ 5294.160969][   T73]      do_syscall_64+0xc6/0x1e0
[ 5294.160969][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5294.160969][   T73] 
[ 5294.163196][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5294.163196][   T73]      netdev_get_by_index+0x5e/0x80
[ 5294.163196][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5294.163196][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5294.163196][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5294.163196][   T73]      ipv6_add_addr+0x411/0x2000
[ 5294.163196][   T73]      inet6_addr_add+0x30e/0xa40
[ 5294.163196][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5294.163196][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5294.163196][   T73]      netlink_rcv_skb+0x130/0x360
[ 5294.163196][   T73]      netlink_unicast+0x449/0x710
[ 5294.163196][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5294.163196][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5294.163196][   T73]      ___sys_sendmsg+0xee/0x170
[ 5294.163196][   T73]      __sys_sendmsg+0xcd/0x170
[ 5294.163196][   T73]      do_syscall_64+0xc6/0x1e0
[ 5294.163196][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5294.163196][   T73] 
[ 5294.165406][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5294.165406][   T73]      netdev_get_by_index+0x5e/0x80
[ 5294.165406][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5294.165406][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5294.165406][   T73]      ip6_route_add+0x1c/0x140
[ 5294.165406][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5294.165406][   T73]      addrconf_add_dev+0xe2/0x170
[ 5294.165406][   T73]      inet6_addr_add+0x12f/0xa40
[ 5294.165406][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5294.165406][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5294.165406][   T73]      netlink_rcv_skb+0x130/0x360
[ 5294.165406][   T73]      netlink_unicast+0x449/0x710
[ 5294.165406][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5294.165406][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5294.165406][   T73]      ___sys_sendmsg+0xee/0x170
[ 5294.165406][   T73]      __sys_sendmsg+0xcd/0x170
[ 5294.165406][   T73]      do_syscall_64+0xc6/0x1e0
[ 5294.165406][   T73] 
[ 5294.167599][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5294.167599][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5294.167599][   T73]      ipv6_find_idev+0x102/0x170
[ 5294.167599][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5294.167599][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5294.167599][   T73]      netlink_rcv_skb+0x130/0x360
[ 5294.167599][   T73]      netlink_unicast+0x449/0x710
[ 5294.167599][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5294.167599][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5294.167599][   T73]      ___sys_sendmsg+0xee/0x170
[ 5294.167599][   T73]      __sys_sendmsg+0xcd/0x170
[ 5294.167599][   T73]      do_syscall_64+0xc6/0x1e0
[ 5294.167599][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5294.167599][   T73] 
[ 5294.169309][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5294.169309][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5294.169309][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5294.169309][   T73]      ipv6_find_idev+0x102/0x170
[ 5294.169309][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5294.169309][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5294.169309][   T73]      netlink_rcv_skb+0x130/0x360
[ 5294.169309][   T73]      netlink_unicast+0x449/0x710
[ 5294.169309][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5294.169309][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5294.169309][   T73]      ___sys_sendmsg+0xee/0x170
[ 5294.169309][   T73]      __sys_sendmsg+0xcd/0x170
[ 5294.169309][   T73]      do_syscall_64+0xc6/0x1e0
[ 5294.169309][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5294.169309][   T73] 
[ 5294.171165][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5294.171454][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5294.171454][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5294.171454][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5294.171454][   T73]      fib6_nh_init+0xa22/0x1580
[ 5294.171454][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5294.171454][   T73]      ip6_route_add+0x1c/0x140
[ 5294.171454][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5294.171454][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5294.171454][   T73]      netlink_rcv_skb+0x130/0x360
[ 5294.171454][   T73]      netlink_unicast+0x449/0x710
[ 5294.171454][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5294.171454][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5294.171454][   T73]      ___sys_sendmsg+0xee/0x170
[ 5294.171454][   T73]      __sys_sendmsg+0xcd/0x170
[ 5294.171454][   T73]      do_syscall_64+0xc6/0x1e0
[ 5294.171454][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5294.171454][   T73] 
[ 5294.173736][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5294.173736][   T73]      dst_init+0x84/0x4a0
[ 5294.173736][   T73]      dst_alloc+0x97/0x150
[ 5294.173736][   T73]      ip6_dst_alloc+0x23/0x90
[ 5294.173736][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5294.173736][   T73]      ip6_pol_route+0x56f/0x840
[ 5294.173736][   T73]      fib6_rule_lookup+0x456/0x630
[ 5294.173736][   T73]      ip6_route_input+0x59c/0xa50
[ 5294.173736][   T73]      ipv6_rcv+0x397/0x810
[ 5294.173736][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5294.173736][   T73]      process_backlog+0x101/0x620
[ 5294.173736][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5294.173736][   T73]      net_rx_action+0x495/0xbe0
[ 5294.173736][   T73]      __do_softirq+0x1b5/0x7f6
[ 5294.173736][   T73] 
[ 5294.175764][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5294.175764][   T73]      netdev_get_by_index+0x5e/0x80
[ 5294.175764][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5294.175764][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5294.175764][   T73]      ip6_route_add+0x1c/0x140
[ 5294.175764][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5294.175764][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5294.175764][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5294.175764][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5294.175764][   T73]      netlink_rcv_skb+0x130/0x360
[ 5294.175764][   T73]      netlink_unicast+0x449/0x710
[ 5294.175764][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5294.175764][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5294.175764][   T73]      ___sys_sendmsg+0xee/0x170
[ 5294.175764][   T73]      __sys_sendmsg+0xcd/0x170
[ 5294.175764][   T73]      do_syscall_64+0xc6/0x1e0
[ 5294.175764][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5294.175764][   T73] 
[ 5294.178252][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5294.178252][   T73]      netdev_get_by_index+0x5e/0x80
[ 5294.178252][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5294.178252][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5294.178252][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5294.178252][   T73]      ipv6_add_addr+0x411/0x2000
[ 5294.178252][   T73]      inet6_addr_add+0x30e/0xa40
[ 5294.178252][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5294.178252][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5294.178252][   T73]      netlink_rcv_skb+0x130/0x360
[ 5294.178252][   T73]      netlink_unicast+0x449/0x710
[ 5294.178252][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5294.178252][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5294.178252][   T73]      ___sys_sendmsg+0xee/0x170
[ 5294.178252][   T73]      __sys_sendmsg+0xcd/0x170
[ 5294.178252][   T73]      do_syscall_64+0xc6/0x1e0
[ 5294.178252][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5294.178252][   T73] 
[ 5294.180734][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5294.180734][   T73]      netdev_get_by_index+0x5e/0x80
[ 5294.180734][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5294.180734][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5294.180734][   T73]      ip6_route_add+0x1c/0x140
[ 5294.180734][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5294.180734][   T73]      addrconf_add_dev+0xe2/0x170
[ 5294.180734][   T73]      inet6_addr_add+0x12f/0xa40
[ 5294.180734][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5294.180734][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5294.180734][   T73]      netlink_rcv_skb+0x130/0x360
[ 5294.180734][   T73]      netlink_unicast+0x449/0x710
[ 5294.180734][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5294.180734][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5294.180734][   T73]      ___sys_sendmsg+0xee/0x170
[ 5294.180734][   T73]      __sys_sendmsg+0xcd/0x170
[ 5294.180734][   T73]      do_syscall_64+0xc6/0x1e0
[ 5294.180734][   T73] 
[ 5294.183156][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5294.183156][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5294.183156][   T73]      ipv6_find_idev+0x102/0x170
[ 5294.183156][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5294.183156][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5294.183156][   T73]      netlink_rcv_skb+0x130/0x360
[ 5294.183156][   T73]      netlink_unicast+0x449/0x710
[ 5294.183156][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5294.183156][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5294.183156][   T73]      ___sys_sendmsg+0xee/0x170
[ 5294.183156][   T73]      __sys_sendmsg+0xcd/0x170
[ 5294.183156][   T73]      do_syscall_64+0xc6/0x1e0
[ 5294.183156][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5294.183156][   T73] 
[ 5294.185070][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5294.185070][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5294.185070][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5294.185070][   T73]      ipv6_find_idev+0x102/0x170
[ 5294.185070][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5294.185070][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5294.185070][   T73]      netlink_rcv_skb+0x130/0x360
[ 5294.185070][   T73]      netlink_unicast+0x449/0x710
[ 5294.185070][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5294.185070][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5294.185070][   T73]      ___sys_sendmsg+0xee/0x170
[ 5294.185070][   T73]      __sys_sendmsg+0xcd/0x170
[ 5294.185070][   T73]      do_syscall_64+0xc6/0x1e0
[ 5294.185070][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5294.185070][   T73] 
[ 5294.187546][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5294.188269][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5294.188269][   T73]      netdev_get_by_index+0x5e/0x80
[ 5294.188269][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5294.188269][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5294.188269][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5294.188269][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5294.188269][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5294.188269][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5294.188269][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5294.188269][   T73]      addrconf_dad_begin+0x310/0x670
[ 5294.188269][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5294.188269][   T73]      process_one_work+0x84d/0x18a0
[ 5294.188269][   T73]      worker_thread+0x587/0xd30
[ 5294.188269][   T73]      kthread+0x28a/0x350
[ 5294.188269][   T73]      ret_from_fork+0x31/0x70
[ 5294.188269][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5294.188269][   T73] 
[ 5294.190397][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5294.190397][   T73]      netdev_get_by_index+0x5e/0x80
[ 5294.190397][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5294.190397][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5294.190397][   T73]      ip6_route_add+0x1c/0x140
[ 5294.190397][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5294.190397][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5294.190397][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5294.190397][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5294.190397][   T73]      netlink_rcv_skb+0x130/0x360
[ 5294.190397][   T73]      netlink_unicast+0x449/0x710
[ 5294.190397][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5294.190397][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5294.190397][   T73]      ___sys_sendmsg+0xee/0x170
[ 5294.190397][   T73]      __sys_sendmsg+0xcd/0x170
[ 5294.190397][   T73]      do_syscall_64+0xc6/0x1e0
[ 5294.190397][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5294.190397][   T73] 
[ 5294.192643][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5294.192643][   T73]      netdev_get_by_index+0x5e/0x80
[ 5294.192643][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5294.192643][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5294.192643][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5294.192643][   T73]      ipv6_add_addr+0x411/0x2000
[ 5294.192643][   T73]      inet6_addr_add+0x30e/0xa40
[ 5294.192643][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5294.192643][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5294.192643][   T73]      netlink_rcv_skb+0x130/0x360
[ 5294.192643][   T73]      netlink_unicast+0x449/0x710
[ 5294.192643][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5294.192643][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5294.192643][   T73]      ___sys_sendmsg+0xee/0x170
[ 5294.192643][   T73]      __sys_sendmsg+0xcd/0x170
[ 5294.192643][   T73]      do_syscall_64+0xc6/0x1e0
[ 5294.192643][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5294.192643][   T73] 
[ 5294.194844][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5294.194844][   T73]      netdev_get_by_index+0x5e/0x80
[ 5294.194844][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5294.194844][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5294.194844][   T73]      ip6_route_add+0x1c/0x140
[ 5294.194844][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5294.194844][   T73]      addrconf_add_dev+0xe2/0x170
[ 5294.194844][   T73]      inet6_addr_add+0x12f/0xa40
[ 5294.194844][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5294.194844][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5294.194844][   T73]      netlink_rcv_skb+0x130/0x360
[ 5294.194844][   T73]      netlink_unicast+0x449/0x710
[ 5294.194844][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5294.194844][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5294.194844][   T73]      ___sys_sendmsg+0xee/0x170
[ 5294.194844][   T73]      __sys_sendmsg+0xcd/0x170
[ 5294.194844][   T73]      do_syscall_64+0xc6/0x1e0
[ 5294.194844][   T73] 
[ 5294.197212][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5294.197212][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5294.197212][   T73]      ipv6_find_idev+0x102/0x170
[ 5294.197212][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5294.197212][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5294.197212][   T73]      netlink_rcv_skb+0x130/0x360
[ 5294.197212][   T73]      netlink_unicast+0x449/0x710
[ 5294.197212][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5294.197212][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5294.197212][   T73]      ___sys_sendmsg+0xee/0x170
[ 5294.197212][   T73]      __sys_sendmsg+0xcd/0x170
[ 5294.197212][   T73]      do_syscall_64+0xc6/0x1e0
[ 5294.197212][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5294.197212][   T73] 
[ 5294.199177][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5294.199177][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5294.199177][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5294.199177][   T73]      ipv6_find_idev+0x102/0x170
[ 5294.199177][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5294.199177][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5294.199177][   T73]      netlink_rcv_skb+0x130/0x360
[ 5294.199177][   T73]      netlink_unicast+0x449/0x710
[ 5294.199177][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5294.199177][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5294.199177][   T73]      ___sys_sendmsg+0xee/0x170
[ 5294.199177][   T73]      __sys_sendmsg+0xcd/0x170
[ 5294.199177][   T73]      do_syscall_64+0xc6/0x1e0
[ 5294.199177][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5294.199177][   T73] 
[ 5304.223732][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5304.224276][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5304.224276][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5304.224276][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5304.224276][   T73]      fib6_nh_init+0xa22/0x1580
[ 5304.224276][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5304.224276][   T73]      ip6_route_add+0x1c/0x140
[ 5304.224276][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5304.224276][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5304.224276][   T73]      netlink_rcv_skb+0x130/0x360
[ 5304.224276][   T73]      netlink_unicast+0x449/0x710
[ 5304.224276][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5304.224276][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5304.224276][   T73]      ___sys_sendmsg+0xee/0x170
[ 5304.224276][   T73]      __sys_sendmsg+0xcd/0x170
[ 5304.224276][   T73]      do_syscall_64+0xc6/0x1e0
[ 5304.224276][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5304.224276][   T73] 
[ 5304.226373][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5304.226373][   T73]      dst_init+0x84/0x4a0
[ 5304.226373][   T73]      dst_alloc+0x97/0x150
[ 5304.226373][   T73]      ip6_dst_alloc+0x23/0x90
[ 5304.226373][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5304.226373][   T73]      ip6_pol_route+0x56f/0x840
[ 5304.226373][   T73]      fib6_rule_lookup+0x456/0x630
[ 5304.226373][   T73]      ip6_route_input+0x59c/0xa50
[ 5304.226373][   T73]      ipv6_rcv+0x397/0x810
[ 5304.226373][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5304.226373][   T73]      process_backlog+0x101/0x620
[ 5304.226373][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5304.226373][   T73]      net_rx_action+0x495/0xbe0
[ 5304.226373][   T73]      __do_softirq+0x1b5/0x7f6
[ 5304.226373][   T73] 
[ 5304.228724][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5304.228724][   T73]      netdev_get_by_index+0x5e/0x80
[ 5304.228724][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5304.228724][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5304.228724][   T73]      ip6_route_add+0x1c/0x140
[ 5304.228724][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5304.228724][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5304.228724][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5304.228724][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5304.228724][   T73]      netlink_rcv_skb+0x130/0x360
[ 5304.228724][   T73]      netlink_unicast+0x449/0x710
[ 5304.228724][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5304.228724][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5304.228724][   T73]      ___sys_sendmsg+0xee/0x170
[ 5304.228724][   T73]      __sys_sendmsg+0xcd/0x170
[ 5304.228724][   T73]      do_syscall_64+0xc6/0x1e0
[ 5304.228724][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5304.228724][   T73] 
[ 5304.230932][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5304.230932][   T73]      netdev_get_by_index+0x5e/0x80
[ 5304.230932][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5304.230932][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5304.230932][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5304.230932][   T73]      ipv6_add_addr+0x411/0x2000
[ 5304.230932][   T73]      inet6_addr_add+0x30e/0xa40
[ 5304.230932][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5304.230932][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5304.230932][   T73]      netlink_rcv_skb+0x130/0x360
[ 5304.230932][   T73]      netlink_unicast+0x449/0x710
[ 5304.230932][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5304.230932][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5304.230932][   T73]      ___sys_sendmsg+0xee/0x170
[ 5304.230932][   T73]      __sys_sendmsg+0xcd/0x170
[ 5304.230932][   T73]      do_syscall_64+0xc6/0x1e0
[ 5304.230932][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5304.230932][   T73] 
[ 5304.233127][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5304.233127][   T73]      netdev_get_by_index+0x5e/0x80
[ 5304.233127][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5304.233127][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5304.233127][   T73]      ip6_route_add+0x1c/0x140
[ 5304.233127][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5304.233127][   T73]      addrconf_add_dev+0xe2/0x170
[ 5304.233127][   T73]      inet6_addr_add+0x12f/0xa40
[ 5304.233127][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5304.233127][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5304.233127][   T73]      netlink_rcv_skb+0x130/0x360
[ 5304.233127][   T73]      netlink_unicast+0x449/0x710
[ 5304.233127][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5304.233127][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5304.233127][   T73]      ___sys_sendmsg+0xee/0x170
[ 5304.233127][   T73]      __sys_sendmsg+0xcd/0x170
[ 5304.233127][   T73]      do_syscall_64+0xc6/0x1e0
[ 5304.233127][   T73] 
[ 5304.235309][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5304.235309][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5304.235309][   T73]      ipv6_find_idev+0x102/0x170
[ 5304.235309][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5304.235309][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5304.235309][   T73]      netlink_rcv_skb+0x130/0x360
[ 5304.235309][   T73]      netlink_unicast+0x449/0x710
[ 5304.235309][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5304.235309][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5304.235309][   T73]      ___sys_sendmsg+0xee/0x170
[ 5304.235309][   T73]      __sys_sendmsg+0xcd/0x170
[ 5304.235309][   T73]      do_syscall_64+0xc6/0x1e0
[ 5304.235309][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5304.235309][   T73] 
[ 5304.237046][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5304.237046][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5304.237046][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5304.237046][   T73]      ipv6_find_idev+0x102/0x170
[ 5304.237046][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5304.237046][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5304.237046][   T73]      netlink_rcv_skb+0x130/0x360
[ 5304.237046][   T73]      netlink_unicast+0x449/0x710
[ 5304.237046][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5304.237046][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5304.237046][   T73]      ___sys_sendmsg+0xee/0x170
[ 5304.237046][   T73]      __sys_sendmsg+0xcd/0x170
[ 5304.237046][   T73]      do_syscall_64+0xc6/0x1e0
[ 5304.237046][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5304.237046][   T73] 
[ 5304.238937][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5304.239248][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5304.239248][   T73]      netdev_get_by_index+0x5e/0x80
[ 5304.239248][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5304.239248][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5304.239248][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5304.239248][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5304.239248][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5304.239248][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5304.239248][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5304.239248][   T73]      addrconf_dad_begin+0x310/0x670
[ 5304.239248][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5304.239248][   T73]      process_one_work+0x84d/0x18a0
[ 5304.239248][   T73]      worker_thread+0x587/0xd30
[ 5304.239248][   T73]      kthread+0x28a/0x350
[ 5304.239248][   T73]      ret_from_fork+0x31/0x70
[ 5304.239248][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5304.239248][   T73] 
[ 5304.241399][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5304.241399][   T73]      netdev_get_by_index+0x5e/0x80
[ 5304.241399][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5304.241399][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5304.241399][   T73]      ip6_route_add+0x1c/0x140
[ 5304.241399][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5304.241399][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5304.241399][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5304.241399][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5304.241399][   T73]      netlink_rcv_skb+0x130/0x360
[ 5304.241399][   T73]      netlink_unicast+0x449/0x710
[ 5304.241399][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5304.241399][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5304.241399][   T73]      ___sys_sendmsg+0xee/0x170
[ 5304.241399][   T73]      __sys_sendmsg+0xcd/0x170
[ 5304.241399][   T73]      do_syscall_64+0xc6/0x1e0
[ 5304.241399][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5304.241399][   T73] 
[ 5304.243653][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5304.243653][   T73]      netdev_get_by_index+0x5e/0x80
[ 5304.243653][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5304.243653][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5304.243653][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5304.243653][   T73]      ipv6_add_addr+0x411/0x2000
[ 5304.243653][   T73]      inet6_addr_add+0x30e/0xa40
[ 5304.243653][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5304.243653][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5304.243653][   T73]      netlink_rcv_skb+0x130/0x360
[ 5304.243653][   T73]      netlink_unicast+0x449/0x710
[ 5304.243653][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5304.243653][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5304.243653][   T73]      ___sys_sendmsg+0xee/0x170
[ 5304.243653][   T73]      __sys_sendmsg+0xcd/0x170
[ 5304.243653][   T73]      do_syscall_64+0xc6/0x1e0
[ 5304.243653][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5304.243653][   T73] 
[ 5304.245883][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5304.245883][   T73]      netdev_get_by_index+0x5e/0x80
[ 5304.245883][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5304.245883][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5304.245883][   T73]      ip6_route_add+0x1c/0x140
[ 5304.245883][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5304.245883][   T73]      addrconf_add_dev+0xe2/0x170
[ 5304.245883][   T73]      inet6_addr_add+0x12f/0xa40
[ 5304.245883][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5304.245883][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5304.245883][   T73]      netlink_rcv_skb+0x130/0x360
[ 5304.245883][   T73]      netlink_unicast+0x449/0x710
[ 5304.245883][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5304.245883][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5304.245883][   T73]      ___sys_sendmsg+0xee/0x170
[ 5304.245883][   T73]      __sys_sendmsg+0xcd/0x170
[ 5304.245883][   T73]      do_syscall_64+0xc6/0x1e0
[ 5304.245883][   T73] 
[ 5304.248435][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5304.248435][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5304.248435][   T73]      ipv6_find_idev+0x102/0x170
[ 5304.248435][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5304.248435][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5304.248435][   T73]      netlink_rcv_skb+0x130/0x360
[ 5304.248435][   T73]      netlink_unicast+0x449/0x710
[ 5304.248435][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5304.248435][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5304.248435][   T73]      ___sys_sendmsg+0xee/0x170
[ 5304.248435][   T73]      __sys_sendmsg+0xcd/0x170
[ 5304.248435][   T73]      do_syscall_64+0xc6/0x1e0
[ 5304.248435][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5304.248435][   T73] 
[ 5304.250169][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5304.250169][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5304.250169][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5304.250169][   T73]      ipv6_find_idev+0x102/0x170
[ 5304.250169][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5304.250169][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5304.250169][   T73]      netlink_rcv_skb+0x130/0x360
[ 5304.250169][   T73]      netlink_unicast+0x449/0x710
[ 5304.250169][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5304.250169][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5304.250169][   T73]      ___sys_sendmsg+0xee/0x170
[ 5304.250169][   T73]      __sys_sendmsg+0xcd/0x170
[ 5304.250169][   T73]      do_syscall_64+0xc6/0x1e0
[ 5304.250169][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5304.250169][   T73] 
[ 5304.252026][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5304.252316][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5304.252316][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5304.252316][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5304.252316][   T73]      fib6_nh_init+0xa22/0x1580
[ 5304.252316][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5304.252316][   T73]      ip6_route_add+0x1c/0x140
[ 5304.252316][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5304.252316][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5304.252316][   T73]      netlink_rcv_skb+0x130/0x360
[ 5304.252316][   T73]      netlink_unicast+0x449/0x710
[ 5304.252316][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5304.252316][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5304.252316][   T73]      ___sys_sendmsg+0xee/0x170
[ 5304.252316][   T73]      __sys_sendmsg+0xcd/0x170
[ 5304.252316][   T73]      do_syscall_64+0xc6/0x1e0
[ 5304.252316][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5304.252316][   T73] 
[ 5304.254585][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5304.254585][   T73]      dst_init+0x84/0x4a0
[ 5304.254585][   T73]      dst_alloc+0x97/0x150
[ 5304.254585][   T73]      ip6_dst_alloc+0x23/0x90
[ 5304.254585][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5304.254585][   T73]      ip6_pol_route+0x56f/0x840
[ 5304.254585][   T73]      fib6_rule_lookup+0x456/0x630
[ 5304.254585][   T73]      ip6_route_input+0x59c/0xa50
[ 5304.254585][   T73]      ipv6_rcv+0x397/0x810
[ 5304.254585][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5304.254585][   T73]      process_backlog+0x101/0x620
[ 5304.254585][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5304.254585][   T73]      net_rx_action+0x495/0xbe0
[ 5304.254585][   T73]      __do_softirq+0x1b5/0x7f6
[ 5304.254585][   T73] 
[ 5304.256480][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5304.256480][   T73]      netdev_get_by_index+0x5e/0x80
[ 5304.256480][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5304.256480][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5304.256480][   T73]      ip6_route_add+0x1c/0x140
[ 5304.256480][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5304.256480][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5304.256480][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5304.256480][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5304.256480][   T73]      netlink_rcv_skb+0x130/0x360
[ 5304.256480][   T73]      netlink_unicast+0x449/0x710
[ 5304.256480][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5304.256480][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5304.256480][   T73]      ___sys_sendmsg+0xee/0x170
[ 5304.256480][   T73]      __sys_sendmsg+0xcd/0x170
[ 5304.256480][   T73]      do_syscall_64+0xc6/0x1e0
[ 5304.256480][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5304.256480][   T73] 
[ 5304.258852][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5304.258852][   T73]      netdev_get_by_index+0x5e/0x80
[ 5304.258852][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5304.258852][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5304.258852][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5304.258852][   T73]      ipv6_add_addr+0x411/0x2000
[ 5304.258852][   T73]      inet6_addr_add+0x30e/0xa40
[ 5304.258852][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5304.258852][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5304.258852][   T73]      netlink_rcv_skb+0x130/0x360
[ 5304.258852][   T73]      netlink_unicast+0x449/0x710
[ 5304.258852][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5304.258852][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5304.258852][   T73]      ___sys_sendmsg+0xee/0x170
[ 5304.258852][   T73]      __sys_sendmsg+0xcd/0x170
[ 5304.258852][   T73]      do_syscall_64+0xc6/0x1e0
[ 5304.258852][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5304.258852][   T73] 
[ 5304.261263][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5304.261263][   T73]      netdev_get_by_index+0x5e/0x80
[ 5304.261263][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5304.261263][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5304.261263][   T73]      ip6_route_add+0x1c/0x140
[ 5304.261263][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5304.261263][   T73]      addrconf_add_dev+0xe2/0x170
[ 5304.261263][   T73]      inet6_addr_add+0x12f/0xa40
[ 5304.261263][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5304.261263][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5304.261263][   T73]      netlink_rcv_skb+0x130/0x360
[ 5304.261263][   T73]      netlink_unicast+0x449/0x710
[ 5304.261263][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5304.261263][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5304.261263][   T73]      ___sys_sendmsg+0xee/0x170
[ 5304.261263][   T73]      __sys_sendmsg+0xcd/0x170
[ 5304.261263][   T73]      do_syscall_64+0xc6/0x1e0
[ 5304.261263][   T73] 
[ 5304.263582][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5304.263582][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5304.263582][   T73]      ipv6_find_idev+0x102/0x170
[ 5304.263582][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5304.263582][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5304.263582][   T73]      netlink_rcv_skb+0x130/0x360
[ 5304.263582][   T73]      netlink_unicast+0x449/0x710
[ 5304.263582][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5304.263582][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5304.263582][   T73]      ___sys_sendmsg+0xee/0x170
[ 5304.263582][   T73]      __sys_sendmsg+0xcd/0x170
[ 5304.263582][   T73]      do_syscall_64+0xc6/0x1e0
[ 5304.263582][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5304.263582][   T73] 
[ 5304.265383][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5304.265383][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5304.265383][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5304.265383][   T73]      ipv6_find_idev+0x102/0x170
[ 5304.265383][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5304.265383][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5304.265383][   T73]      netlink_rcv_skb+0x130/0x360
[ 5304.265383][   T73]      netlink_unicast+0x449/0x710
[ 5304.265383][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5304.265383][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5304.265383][   T73]      ___sys_sendmsg+0xee/0x170
[ 5304.265383][   T73]      __sys_sendmsg+0xcd/0x170
[ 5304.265383][   T73]      do_syscall_64+0xc6/0x1e0
[ 5304.265383][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5304.265383][   T73] 
[ 5304.267351][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5304.267795][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5304.267795][   T73]      netdev_get_by_index+0x5e/0x80
[ 5304.267795][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5304.267795][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5304.267795][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5304.267795][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5304.267795][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5304.267795][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5304.267795][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5304.267795][   T73]      addrconf_dad_begin+0x310/0x670
[ 5304.267795][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5304.267795][   T73]      process_one_work+0x84d/0x18a0
[ 5304.267795][   T73]      worker_thread+0x587/0xd30
[ 5304.267795][   T73]      kthread+0x28a/0x350
[ 5304.267795][   T73]      ret_from_fork+0x31/0x70
[ 5304.267795][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5304.267795][   T73] 
[ 5304.270091][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5304.270091][   T73]      netdev_get_by_index+0x5e/0x80
[ 5304.270091][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5304.270091][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5304.270091][   T73]      ip6_route_add+0x1c/0x140
[ 5304.270091][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5304.270091][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5304.270091][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5304.270091][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5304.270091][   T73]      netlink_rcv_skb+0x130/0x360
[ 5304.270091][   T73]      netlink_unicast+0x449/0x710
[ 5304.270091][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5304.270091][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5304.270091][   T73]      ___sys_sendmsg+0xee/0x170
[ 5304.270091][   T73]      __sys_sendmsg+0xcd/0x170
[ 5304.270091][   T73]      do_syscall_64+0xc6/0x1e0
[ 5304.270091][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5304.270091][   T73] 
[ 5304.272455][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5304.272455][   T73]      netdev_get_by_index+0x5e/0x80
[ 5304.272455][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5304.272455][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5304.272455][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5304.272455][   T73]      ipv6_add_addr+0x411/0x2000
[ 5304.272455][   T73]      inet6_addr_add+0x30e/0xa40
[ 5304.272455][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5304.272455][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5304.272455][   T73]      netlink_rcv_skb+0x130/0x360
[ 5304.272455][   T73]      netlink_unicast+0x449/0x710
[ 5304.272455][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5304.272455][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5304.272455][   T73]      ___sys_sendmsg+0xee/0x170
[ 5304.272455][   T73]      __sys_sendmsg+0xcd/0x170
[ 5304.272455][   T73]      do_syscall_64+0xc6/0x1e0
[ 5304.272455][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5304.272455][   T73] 
[ 5304.274745][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5304.274745][   T73]      netdev_get_by_index+0x5e/0x80
[ 5304.274745][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5304.274745][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5304.274745][   T73]      ip6_route_add+0x1c/0x140
[ 5304.274745][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5304.274745][   T73]      addrconf_add_dev+0xe2/0x170
[ 5304.274745][   T73]      inet6_addr_add+0x12f/0xa40
[ 5304.274745][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5304.274745][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5304.274745][   T73]      netlink_rcv_skb+0x130/0x360
[ 5304.274745][   T73]      netlink_unicast+0x449/0x710
[ 5304.274745][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5304.274745][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5304.274745][   T73]      ___sys_sendmsg+0xee/0x170
[ 5304.274745][   T73]      __sys_sendmsg+0xcd/0x170
[ 5304.274745][   T73]      do_syscall_64+0xc6/0x1e0
[ 5304.274745][   T73] 
[ 5304.277074][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5304.277074][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5304.277074][   T73]      ipv6_find_idev+0x102/0x170
[ 5304.277074][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5304.277074][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5304.277074][   T73]      netlink_rcv_skb+0x130/0x360
[ 5304.277074][   T73]      netlink_unicast+0x449/0x710
[ 5304.277074][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5304.277074][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5304.277074][   T73]      ___sys_sendmsg+0xee/0x170
[ 5304.277074][   T73]      __sys_sendmsg+0xcd/0x170
[ 5304.277074][   T73]      do_syscall_64+0xc6/0x1e0
[ 5304.277074][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5304.277074][   T73] 
[ 5304.278854][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5304.278854][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5304.278854][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5304.278854][   T73]      ipv6_find_idev+0x102/0x170
[ 5304.278854][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5304.278854][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5304.278854][   T73]      netlink_rcv_skb+0x130/0x360
[ 5304.278854][   T73]      netlink_unicast+0x449/0x710
[ 5304.278854][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5304.278854][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5304.278854][   T73]      ___sys_sendmsg+0xee/0x170
[ 5304.278854][   T73]      __sys_sendmsg+0xcd/0x170
[ 5304.278854][   T73]      do_syscall_64+0xc6/0x1e0
[ 5304.278854][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5304.278854][   T73] 
[ 5314.351735][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5314.352230][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5314.352230][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5314.352230][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5314.352230][   T73]      fib6_nh_init+0xa22/0x1580
[ 5314.352230][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5314.352230][   T73]      ip6_route_add+0x1c/0x140
[ 5314.352230][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5314.352230][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5314.352230][   T73]      netlink_rcv_skb+0x130/0x360
[ 5314.352230][   T73]      netlink_unicast+0x449/0x710
[ 5314.352230][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5314.352230][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5314.352230][   T73]      ___sys_sendmsg+0xee/0x170
[ 5314.352230][   T73]      __sys_sendmsg+0xcd/0x170
[ 5314.352230][   T73]      do_syscall_64+0xc6/0x1e0
[ 5314.352230][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5314.352230][   T73] 
[ 5314.354134][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5314.354134][   T73]      dst_init+0x84/0x4a0
[ 5314.354134][   T73]      dst_alloc+0x97/0x150
[ 5314.354134][   T73]      ip6_dst_alloc+0x23/0x90
[ 5314.354134][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5314.354134][   T73]      ip6_pol_route+0x56f/0x840
[ 5314.354134][   T73]      fib6_rule_lookup+0x456/0x630
[ 5314.354134][   T73]      ip6_route_input+0x59c/0xa50
[ 5314.354134][   T73]      ipv6_rcv+0x397/0x810
[ 5314.354134][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5314.354134][   T73]      process_backlog+0x101/0x620
[ 5314.354134][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5314.354134][   T73]      net_rx_action+0x495/0xbe0
[ 5314.354134][   T73]      __do_softirq+0x1b5/0x7f6
[ 5314.354134][   T73] 
[ 5314.355775][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5314.355775][   T73]      netdev_get_by_index+0x5e/0x80
[ 5314.355775][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5314.355775][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5314.355775][   T73]      ip6_route_add+0x1c/0x140
[ 5314.355775][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5314.355775][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5314.355775][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5314.355775][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5314.355775][   T73]      netlink_rcv_skb+0x130/0x360
[ 5314.355775][   T73]      netlink_unicast+0x449/0x710
[ 5314.355775][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5314.355775][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5314.355775][   T73]      ___sys_sendmsg+0xee/0x170
[ 5314.355775][   T73]      __sys_sendmsg+0xcd/0x170
[ 5314.355775][   T73]      do_syscall_64+0xc6/0x1e0
[ 5314.355775][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5314.355775][   T73] 
[ 5314.357780][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5314.357780][   T73]      netdev_get_by_index+0x5e/0x80
[ 5314.357780][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5314.357780][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5314.357780][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5314.357780][   T73]      ipv6_add_addr+0x411/0x2000
[ 5314.357780][   T73]      inet6_addr_add+0x30e/0xa40
[ 5314.357780][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5314.357780][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5314.357780][   T73]      netlink_rcv_skb+0x130/0x360
[ 5314.357780][   T73]      netlink_unicast+0x449/0x710
[ 5314.357780][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5314.357780][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5314.357780][   T73]      ___sys_sendmsg+0xee/0x170
[ 5314.357780][   T73]      __sys_sendmsg+0xcd/0x170
[ 5314.357780][   T73]      do_syscall_64+0xc6/0x1e0
[ 5314.357780][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5314.357780][   T73] 
[ 5314.359794][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5314.359794][   T73]      netdev_get_by_index+0x5e/0x80
[ 5314.359794][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5314.359794][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5314.359794][   T73]      ip6_route_add+0x1c/0x140
[ 5314.359794][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5314.359794][   T73]      addrconf_add_dev+0xe2/0x170
[ 5314.359794][   T73]      inet6_addr_add+0x12f/0xa40
[ 5314.359794][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5314.359794][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5314.359794][   T73]      netlink_rcv_skb+0x130/0x360
[ 5314.359794][   T73]      netlink_unicast+0x449/0x710
[ 5314.359794][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5314.359794][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5314.359794][   T73]      ___sys_sendmsg+0xee/0x170
[ 5314.359794][   T73]      __sys_sendmsg+0xcd/0x170
[ 5314.359794][   T73]      do_syscall_64+0xc6/0x1e0
[ 5314.359794][   T73] 
[ 5314.361772][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5314.361772][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5314.361772][   T73]      ipv6_find_idev+0x102/0x170
[ 5314.361772][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5314.361772][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5314.361772][   T73]      netlink_rcv_skb+0x130/0x360
[ 5314.361772][   T73]      netlink_unicast+0x449/0x710
[ 5314.361772][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5314.361772][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5314.361772][   T73]      ___sys_sendmsg+0xee/0x170
[ 5314.361772][   T73]      __sys_sendmsg+0xcd/0x170
[ 5314.361772][   T73]      do_syscall_64+0xc6/0x1e0
[ 5314.361772][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5314.361772][   T73] 
[ 5314.363314][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5314.363314][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5314.363314][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5314.363314][   T73]      ipv6_find_idev+0x102/0x170
[ 5314.363314][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5314.363314][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5314.363314][   T73]      netlink_rcv_skb+0x130/0x360
[ 5314.363314][   T73]      netlink_unicast+0x449/0x710
[ 5314.363314][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5314.363314][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5314.363314][   T73]      ___sys_sendmsg+0xee/0x170
[ 5314.363314][   T73]      __sys_sendmsg+0xcd/0x170
[ 5314.363314][   T73]      do_syscall_64+0xc6/0x1e0
[ 5314.363314][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5314.363314][   T73] 
[ 5314.365000][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5314.365292][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5314.365292][   T73]      netdev_get_by_index+0x5e/0x80
[ 5314.365292][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5314.365292][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5314.365292][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5314.365292][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5314.365292][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5314.365292][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5314.365292][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5314.365292][   T73]      addrconf_dad_begin+0x310/0x670
[ 5314.365292][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5314.365292][   T73]      process_one_work+0x84d/0x18a0
[ 5314.365292][   T73]      worker_thread+0x587/0xd30
[ 5314.365292][   T73]      kthread+0x28a/0x350
[ 5314.365292][   T73]      ret_from_fork+0x31/0x70
[ 5314.365292][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5314.365292][   T73] 
[ 5314.367187][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5314.367187][   T73]      netdev_get_by_index+0x5e/0x80
[ 5314.367187][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5314.367187][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5314.367187][   T73]      ip6_route_add+0x1c/0x140
[ 5314.367187][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5314.367187][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5314.367187][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5314.367187][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5314.367187][   T73]      netlink_rcv_skb+0x130/0x360
[ 5314.367187][   T73]      netlink_unicast+0x449/0x710
[ 5314.367187][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5314.367187][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5314.367187][   T73]      ___sys_sendmsg+0xee/0x170
[ 5314.367187][   T73]      __sys_sendmsg+0xcd/0x170
[ 5314.367187][   T73]      do_syscall_64+0xc6/0x1e0
[ 5314.367187][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5314.367187][   T73] 
[ 5314.369171][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5314.369171][   T73]      netdev_get_by_index+0x5e/0x80
[ 5314.369171][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5314.369171][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5314.369171][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5314.369171][   T73]      ipv6_add_addr+0x411/0x2000
[ 5314.369171][   T73]      inet6_addr_add+0x30e/0xa40
[ 5314.369171][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5314.369171][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5314.369171][   T73]      netlink_rcv_skb+0x130/0x360
[ 5314.369171][   T73]      netlink_unicast+0x449/0x710
[ 5314.369171][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5314.369171][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5314.369171][   T73]      ___sys_sendmsg+0xee/0x170
[ 5314.369171][   T73]      __sys_sendmsg+0xcd/0x170
[ 5314.369171][   T73]      do_syscall_64+0xc6/0x1e0
[ 5314.369171][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5314.369171][   T73] 
[ 5314.371153][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5314.371153][   T73]      netdev_get_by_index+0x5e/0x80
[ 5314.371153][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5314.371153][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5314.371153][   T73]      ip6_route_add+0x1c/0x140
[ 5314.371153][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5314.371153][   T73]      addrconf_add_dev+0xe2/0x170
[ 5314.371153][   T73]      inet6_addr_add+0x12f/0xa40
[ 5314.371153][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5314.371153][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5314.371153][   T73]      netlink_rcv_skb+0x130/0x360
[ 5314.371153][   T73]      netlink_unicast+0x449/0x710
[ 5314.371153][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5314.371153][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5314.371153][   T73]      ___sys_sendmsg+0xee/0x170
[ 5314.371153][   T73]      __sys_sendmsg+0xcd/0x170
[ 5314.371153][   T73]      do_syscall_64+0xc6/0x1e0
[ 5314.371153][   T73] 
[ 5314.373098][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5314.373098][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5314.373098][   T73]      ipv6_find_idev+0x102/0x170
[ 5314.373098][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5314.373098][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5314.373098][   T73]      netlink_rcv_skb+0x130/0x360
[ 5314.373098][   T73]      netlink_unicast+0x449/0x710
[ 5314.373098][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5314.373098][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5314.373098][   T73]      ___sys_sendmsg+0xee/0x170
[ 5314.373098][   T73]      __sys_sendmsg+0xcd/0x170
[ 5314.373098][   T73]      do_syscall_64+0xc6/0x1e0
[ 5314.373098][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5314.373098][   T73] 
[ 5314.374630][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5314.374630][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5314.374630][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5314.374630][   T73]      ipv6_find_idev+0x102/0x170
[ 5314.374630][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5314.374630][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5314.374630][   T73]      netlink_rcv_skb+0x130/0x360
[ 5314.374630][   T73]      netlink_unicast+0x449/0x710
[ 5314.374630][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5314.374630][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5314.374630][   T73]      ___sys_sendmsg+0xee/0x170
[ 5314.374630][   T73]      __sys_sendmsg+0xcd/0x170
[ 5314.374630][   T73]      do_syscall_64+0xc6/0x1e0
[ 5314.374630][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5314.374630][   T73] 
[ 5314.376296][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5314.376588][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5314.376588][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5314.376588][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5314.376588][   T73]      fib6_nh_init+0xa22/0x1580
[ 5314.376588][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5314.376588][   T73]      ip6_route_add+0x1c/0x140
[ 5314.376588][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5314.376588][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5314.376588][   T73]      netlink_rcv_skb+0x130/0x360
[ 5314.376588][   T73]      netlink_unicast+0x449/0x710
[ 5314.376588][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5314.376588][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5314.376588][   T73]      ___sys_sendmsg+0xee/0x170
[ 5314.376588][   T73]      __sys_sendmsg+0xcd/0x170
[ 5314.376588][   T73]      do_syscall_64+0xc6/0x1e0
[ 5314.376588][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5314.376588][   T73] 
[ 5314.378664][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5314.378664][   T73]      dst_init+0x84/0x4a0
[ 5314.378664][   T73]      dst_alloc+0x97/0x150
[ 5314.378664][   T73]      ip6_dst_alloc+0x23/0x90
[ 5314.378664][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5314.378664][   T73]      ip6_pol_route+0x56f/0x840
[ 5314.378664][   T73]      fib6_rule_lookup+0x456/0x630
[ 5314.378664][   T73]      ip6_route_input+0x59c/0xa50
[ 5314.378664][   T73]      ipv6_rcv+0x397/0x810
[ 5314.378664][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5314.378664][   T73]      process_backlog+0x101/0x620
[ 5314.378664][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5314.378664][   T73]      net_rx_action+0x495/0xbe0
[ 5314.378664][   T73]      __do_softirq+0x1b5/0x7f6
[ 5314.378664][   T73] 
[ 5314.380554][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5314.380554][   T73]      netdev_get_by_index+0x5e/0x80
[ 5314.380554][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5314.380554][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5314.380554][   T73]      ip6_route_add+0x1c/0x140
[ 5314.380554][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5314.380554][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5314.380554][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5314.380554][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5314.380554][   T73]      netlink_rcv_skb+0x130/0x360
[ 5314.380554][   T73]      netlink_unicast+0x449/0x710
[ 5314.380554][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5314.380554][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5314.380554][   T73]      ___sys_sendmsg+0xee/0x170
[ 5314.380554][   T73]      __sys_sendmsg+0xcd/0x170
[ 5314.380554][   T73]      do_syscall_64+0xc6/0x1e0
[ 5314.380554][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5314.380554][   T73] 
[ 5314.382795][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5314.382795][   T73]      netdev_get_by_index+0x5e/0x80
[ 5314.382795][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5314.382795][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5314.382795][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5314.382795][   T73]      ipv6_add_addr+0x411/0x2000
[ 5314.382795][   T73]      inet6_addr_add+0x30e/0xa40
[ 5314.382795][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5314.382795][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5314.382795][   T73]      netlink_rcv_skb+0x130/0x360
[ 5314.382795][   T73]      netlink_unicast+0x449/0x710
[ 5314.382795][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5314.382795][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5314.382795][   T73]      ___sys_sendmsg+0xee/0x170
[ 5314.382795][   T73]      __sys_sendmsg+0xcd/0x170
[ 5314.382795][   T73]      do_syscall_64+0xc6/0x1e0
[ 5314.382795][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5314.382795][   T73] 
[ 5314.385022][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5314.385022][   T73]      netdev_get_by_index+0x5e/0x80
[ 5314.385022][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5314.385022][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5314.385022][   T73]      ip6_route_add+0x1c/0x140
[ 5314.385022][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5314.385022][   T73]      addrconf_add_dev+0xe2/0x170
[ 5314.385022][   T73]      inet6_addr_add+0x12f/0xa40
[ 5314.385022][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5314.385022][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5314.385022][   T73]      netlink_rcv_skb+0x130/0x360
[ 5314.385022][   T73]      netlink_unicast+0x449/0x710
[ 5314.385022][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5314.385022][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5314.385022][   T73]      ___sys_sendmsg+0xee/0x170
[ 5314.385022][   T73]      __sys_sendmsg+0xcd/0x170
[ 5314.385022][   T73]      do_syscall_64+0xc6/0x1e0
[ 5314.385022][   T73] 
[ 5314.387161][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5314.387161][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5314.387161][   T73]      ipv6_find_idev+0x102/0x170
[ 5314.387161][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5314.387161][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5314.387161][   T73]      netlink_rcv_skb+0x130/0x360
[ 5314.387161][   T73]      netlink_unicast+0x449/0x710
[ 5314.387161][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5314.387161][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5314.387161][   T73]      ___sys_sendmsg+0xee/0x170
[ 5314.387161][   T73]      __sys_sendmsg+0xcd/0x170
[ 5314.387161][   T73]      do_syscall_64+0xc6/0x1e0
[ 5314.387161][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5314.387161][   T73] 
[ 5314.388942][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5314.388942][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5314.388942][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5314.388942][   T73]      ipv6_find_idev+0x102/0x170
[ 5314.388942][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5314.388942][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5314.388942][   T73]      netlink_rcv_skb+0x130/0x360
[ 5314.388942][   T73]      netlink_unicast+0x449/0x710
[ 5314.388942][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5314.388942][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5314.388942][   T73]      ___sys_sendmsg+0xee/0x170
[ 5314.388942][   T73]      __sys_sendmsg+0xcd/0x170
[ 5314.388942][   T73]      do_syscall_64+0xc6/0x1e0
[ 5314.388942][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5314.388942][   T73] 
[ 5314.390871][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5314.391135][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5314.391135][   T73]      netdev_get_by_index+0x5e/0x80
[ 5314.391135][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5314.391135][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5314.391135][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5314.391135][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5314.391135][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5314.391135][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5314.391135][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5314.391135][   T73]      addrconf_dad_begin+0x310/0x670
[ 5314.391135][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5314.391135][   T73]      process_one_work+0x84d/0x18a0
[ 5314.391135][   T73]      worker_thread+0x587/0xd30
[ 5314.391135][   T73]      kthread+0x28a/0x350
[ 5314.391135][   T73]      ret_from_fork+0x31/0x70
[ 5314.391135][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5314.391135][   T73] 
[ 5314.393302][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5314.393302][   T73]      netdev_get_by_index+0x5e/0x80
[ 5314.393302][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5314.393302][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5314.393302][   T73]      ip6_route_add+0x1c/0x140
[ 5314.393302][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5314.393302][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5314.393302][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5314.393302][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5314.393302][   T73]      netlink_rcv_skb+0x130/0x360
[ 5314.393302][   T73]      netlink_unicast+0x449/0x710
[ 5314.393302][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5314.393302][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5314.393302][   T73]      ___sys_sendmsg+0xee/0x170
[ 5314.393302][   T73]      __sys_sendmsg+0xcd/0x170
[ 5314.393302][   T73]      do_syscall_64+0xc6/0x1e0
[ 5314.393302][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5314.393302][   T73] 
[ 5314.395479][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5314.395479][   T73]      netdev_get_by_index+0x5e/0x80
[ 5314.395479][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5314.395479][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5314.395479][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5314.395479][   T73]      ipv6_add_addr+0x411/0x2000
[ 5314.395479][   T73]      inet6_addr_add+0x30e/0xa40
[ 5314.395479][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5314.395479][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5314.395479][   T73]      netlink_rcv_skb+0x130/0x360
[ 5314.395479][   T73]      netlink_unicast+0x449/0x710
[ 5314.395479][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5314.395479][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5314.395479][   T73]      ___sys_sendmsg+0xee/0x170
[ 5314.395479][   T73]      __sys_sendmsg+0xcd/0x170
[ 5314.395479][   T73]      do_syscall_64+0xc6/0x1e0
[ 5314.395479][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5314.395479][   T73] 
[ 5314.397646][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5314.397646][   T73]      netdev_get_by_index+0x5e/0x80
[ 5314.397646][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5314.397646][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5314.397646][   T73]      ip6_route_add+0x1c/0x140
[ 5314.397646][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5314.397646][   T73]      addrconf_add_dev+0xe2/0x170
[ 5314.397646][   T73]      inet6_addr_add+0x12f/0xa40
[ 5314.397646][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5314.397646][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5314.397646][   T73]      netlink_rcv_skb+0x130/0x360
[ 5314.397646][   T73]      netlink_unicast+0x449/0x710
[ 5314.397646][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5314.397646][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5314.397646][   T73]      ___sys_sendmsg+0xee/0x170
[ 5314.397646][   T73]      __sys_sendmsg+0xcd/0x170
[ 5314.397646][   T73]      do_syscall_64+0xc6/0x1e0
[ 5314.397646][   T73] 
[ 5314.399781][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5314.399781][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5314.399781][   T73]      ipv6_find_idev+0x102/0x170
[ 5314.399781][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5314.399781][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5314.399781][   T73]      netlink_rcv_skb+0x130/0x360
[ 5314.399781][   T73]      netlink_unicast+0x449/0x710
[ 5314.399781][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5314.399781][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5314.399781][   T73]      ___sys_sendmsg+0xee/0x170
[ 5314.399781][   T73]      __sys_sendmsg+0xcd/0x170
[ 5314.399781][   T73]      do_syscall_64+0xc6/0x1e0
[ 5314.399781][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5314.399781][   T73] 
[ 5314.401493][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5314.401493][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5314.401493][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5314.401493][   T73]      ipv6_find_idev+0x102/0x170
[ 5314.401493][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5314.401493][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5314.401493][   T73]      netlink_rcv_skb+0x130/0x360
[ 5314.401493][   T73]      netlink_unicast+0x449/0x710
[ 5314.401493][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5314.401493][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5314.401493][   T73]      ___sys_sendmsg+0xee/0x170
[ 5314.401493][   T73]      __sys_sendmsg+0xcd/0x170
[ 5314.401493][   T73]      do_syscall_64+0xc6/0x1e0
[ 5314.401493][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5314.401493][   T73] 
[ 5324.639770][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5324.640219][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5324.640219][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5324.640219][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5324.640219][   T73]      fib6_nh_init+0xa22/0x1580
[ 5324.640219][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5324.640219][   T73]      ip6_route_add+0x1c/0x140
[ 5324.640219][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5324.640219][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5324.640219][   T73]      netlink_rcv_skb+0x130/0x360
[ 5324.640219][   T73]      netlink_unicast+0x449/0x710
[ 5324.640219][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5324.640219][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5324.640219][   T73]      ___sys_sendmsg+0xee/0x170
[ 5324.640219][   T73]      __sys_sendmsg+0xcd/0x170
[ 5324.640219][   T73]      do_syscall_64+0xc6/0x1e0
[ 5324.640219][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5324.640219][   T73] 
[ 5324.642134][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5324.642134][   T73]      dst_init+0x84/0x4a0
[ 5324.642134][   T73]      dst_alloc+0x97/0x150
[ 5324.642134][   T73]      ip6_dst_alloc+0x23/0x90
[ 5324.642134][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5324.642134][   T73]      ip6_pol_route+0x56f/0x840
[ 5324.642134][   T73]      fib6_rule_lookup+0x456/0x630
[ 5324.642134][   T73]      ip6_route_input+0x59c/0xa50
[ 5324.642134][   T73]      ipv6_rcv+0x397/0x810
[ 5324.642134][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5324.642134][   T73]      process_backlog+0x101/0x620
[ 5324.642134][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5324.642134][   T73]      net_rx_action+0x495/0xbe0
[ 5324.642134][   T73]      __do_softirq+0x1b5/0x7f6
[ 5324.642134][   T73] 
[ 5324.643776][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5324.643776][   T73]      netdev_get_by_index+0x5e/0x80
[ 5324.643776][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5324.643776][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5324.643776][   T73]      ip6_route_add+0x1c/0x140
[ 5324.643776][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5324.643776][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5324.643776][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5324.643776][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5324.643776][   T73]      netlink_rcv_skb+0x130/0x360
[ 5324.643776][   T73]      netlink_unicast+0x449/0x710
[ 5324.643776][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5324.643776][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5324.643776][   T73]      ___sys_sendmsg+0xee/0x170
[ 5324.643776][   T73]      __sys_sendmsg+0xcd/0x170
[ 5324.643776][   T73]      do_syscall_64+0xc6/0x1e0
[ 5324.643776][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5324.643776][   T73] 
[ 5324.645773][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5324.645773][   T73]      netdev_get_by_index+0x5e/0x80
[ 5324.645773][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5324.645773][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5324.645773][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5324.645773][   T73]      ipv6_add_addr+0x411/0x2000
[ 5324.645773][   T73]      inet6_addr_add+0x30e/0xa40
[ 5324.645773][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5324.645773][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5324.645773][   T73]      netlink_rcv_skb+0x130/0x360
[ 5324.645773][   T73]      netlink_unicast+0x449/0x710
[ 5324.645773][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5324.645773][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5324.645773][   T73]      ___sys_sendmsg+0xee/0x170
[ 5324.645773][   T73]      __sys_sendmsg+0xcd/0x170
[ 5324.645773][   T73]      do_syscall_64+0xc6/0x1e0
[ 5324.645773][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5324.645773][   T73] 
[ 5324.647786][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5324.647786][   T73]      netdev_get_by_index+0x5e/0x80
[ 5324.647786][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5324.647786][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5324.647786][   T73]      ip6_route_add+0x1c/0x140
[ 5324.647786][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5324.647786][   T73]      addrconf_add_dev+0xe2/0x170
[ 5324.647786][   T73]      inet6_addr_add+0x12f/0xa40
[ 5324.647786][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5324.647786][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5324.647786][   T73]      netlink_rcv_skb+0x130/0x360
[ 5324.647786][   T73]      netlink_unicast+0x449/0x710
[ 5324.647786][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5324.647786][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5324.647786][   T73]      ___sys_sendmsg+0xee/0x170
[ 5324.647786][   T73]      __sys_sendmsg+0xcd/0x170
[ 5324.647786][   T73]      do_syscall_64+0xc6/0x1e0
[ 5324.647786][   T73] 
[ 5324.649759][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5324.649759][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5324.649759][   T73]      ipv6_find_idev+0x102/0x170
[ 5324.649759][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5324.649759][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5324.649759][   T73]      netlink_rcv_skb+0x130/0x360
[ 5324.649759][   T73]      netlink_unicast+0x449/0x710
[ 5324.649759][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5324.649759][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5324.649759][   T73]      ___sys_sendmsg+0xee/0x170
[ 5324.649759][   T73]      __sys_sendmsg+0xcd/0x170
[ 5324.649759][   T73]      do_syscall_64+0xc6/0x1e0
[ 5324.649759][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5324.649759][   T73] 
[ 5324.651318][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5324.651318][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5324.651318][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5324.651318][   T73]      ipv6_find_idev+0x102/0x170
[ 5324.651318][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5324.651318][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5324.651318][   T73]      netlink_rcv_skb+0x130/0x360
[ 5324.651318][   T73]      netlink_unicast+0x449/0x710
[ 5324.651318][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5324.651318][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5324.651318][   T73]      ___sys_sendmsg+0xee/0x170
[ 5324.651318][   T73]      __sys_sendmsg+0xcd/0x170
[ 5324.651318][   T73]      do_syscall_64+0xc6/0x1e0
[ 5324.651318][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5324.651318][   T73] 
[ 5324.653005][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5324.653293][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5324.653293][   T73]      netdev_get_by_index+0x5e/0x80
[ 5324.653293][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5324.653293][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5324.653293][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5324.653293][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5324.653293][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5324.653293][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5324.653293][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5324.653293][   T73]      addrconf_dad_begin+0x310/0x670
[ 5324.653293][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5324.653293][   T73]      process_one_work+0x84d/0x18a0
[ 5324.653293][   T73]      worker_thread+0x587/0xd30
[ 5324.653293][   T73]      kthread+0x28a/0x350
[ 5324.653293][   T73]      ret_from_fork+0x31/0x70
[ 5324.653293][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5324.653293][   T73] 
[ 5324.655200][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5324.655200][   T73]      netdev_get_by_index+0x5e/0x80
[ 5324.655200][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5324.655200][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5324.655200][   T73]      ip6_route_add+0x1c/0x140
[ 5324.655200][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5324.655200][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5324.655200][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5324.655200][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5324.655200][   T73]      netlink_rcv_skb+0x130/0x360
[ 5324.655200][   T73]      netlink_unicast+0x449/0x710
[ 5324.655200][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5324.655200][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5324.655200][   T73]      ___sys_sendmsg+0xee/0x170
[ 5324.655200][   T73]      __sys_sendmsg+0xcd/0x170
[ 5324.655200][   T73]      do_syscall_64+0xc6/0x1e0
[ 5324.655200][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5324.655200][   T73] 
[ 5324.657192][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5324.657192][   T73]      netdev_get_by_index+0x5e/0x80
[ 5324.657192][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5324.657192][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5324.657192][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5324.657192][   T73]      ipv6_add_addr+0x411/0x2000
[ 5324.657192][   T73]      inet6_addr_add+0x30e/0xa40
[ 5324.657192][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5324.657192][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5324.657192][   T73]      netlink_rcv_skb+0x130/0x360
[ 5324.657192][   T73]      netlink_unicast+0x449/0x710
[ 5324.657192][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5324.657192][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5324.657192][   T73]      ___sys_sendmsg+0xee/0x170
[ 5324.657192][   T73]      __sys_sendmsg+0xcd/0x170
[ 5324.657192][   T73]      do_syscall_64+0xc6/0x1e0
[ 5324.657192][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5324.657192][   T73] 
[ 5324.659209][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5324.659209][   T73]      netdev_get_by_index+0x5e/0x80
[ 5324.659209][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5324.659209][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5324.659209][   T73]      ip6_route_add+0x1c/0x140
[ 5324.659209][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5324.659209][   T73]      addrconf_add_dev+0xe2/0x170
[ 5324.659209][   T73]      inet6_addr_add+0x12f/0xa40
[ 5324.659209][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5324.659209][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5324.659209][   T73]      netlink_rcv_skb+0x130/0x360
[ 5324.659209][   T73]      netlink_unicast+0x449/0x710
[ 5324.659209][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5324.659209][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5324.659209][   T73]      ___sys_sendmsg+0xee/0x170
[ 5324.659209][   T73]      __sys_sendmsg+0xcd/0x170
[ 5324.659209][   T73]      do_syscall_64+0xc6/0x1e0
[ 5324.659209][   T73] 
[ 5324.661175][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5324.661175][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5324.661175][   T73]      ipv6_find_idev+0x102/0x170
[ 5324.661175][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5324.661175][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5324.661175][   T73]      netlink_rcv_skb+0x130/0x360
[ 5324.661175][   T73]      netlink_unicast+0x449/0x710
[ 5324.661175][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5324.661175][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5324.661175][   T73]      ___sys_sendmsg+0xee/0x170
[ 5324.661175][   T73]      __sys_sendmsg+0xcd/0x170
[ 5324.661175][   T73]      do_syscall_64+0xc6/0x1e0
[ 5324.661175][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5324.661175][   T73] 
[ 5324.662714][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5324.662714][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5324.662714][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5324.662714][   T73]      ipv6_find_idev+0x102/0x170
[ 5324.662714][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5324.662714][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5324.662714][   T73]      netlink_rcv_skb+0x130/0x360
[ 5324.662714][   T73]      netlink_unicast+0x449/0x710
[ 5324.662714][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5324.662714][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5324.662714][   T73]      ___sys_sendmsg+0xee/0x170
[ 5324.662714][   T73]      __sys_sendmsg+0xcd/0x170
[ 5324.662714][   T73]      do_syscall_64+0xc6/0x1e0
[ 5324.662714][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5324.662714][   T73] 
[ 5324.664382][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5324.664649][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5324.664649][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5324.664649][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5324.664649][   T73]      fib6_nh_init+0xa22/0x1580
[ 5324.664649][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5324.664649][   T73]      ip6_route_add+0x1c/0x140
[ 5324.664649][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5324.664649][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5324.664649][   T73]      netlink_rcv_skb+0x130/0x360
[ 5324.664649][   T73]      netlink_unicast+0x449/0x710
[ 5324.664649][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5324.664649][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5324.664649][   T73]      ___sys_sendmsg+0xee/0x170
[ 5324.664649][   T73]      __sys_sendmsg+0xcd/0x170
[ 5324.664649][   T73]      do_syscall_64+0xc6/0x1e0
[ 5324.664649][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5324.664649][   T73] 
[ 5324.666714][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5324.666714][   T73]      dst_init+0x84/0x4a0
[ 5324.666714][   T73]      dst_alloc+0x97/0x150
[ 5324.666714][   T73]      ip6_dst_alloc+0x23/0x90
[ 5324.666714][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5324.666714][   T73]      ip6_pol_route+0x56f/0x840
[ 5324.666714][   T73]      fib6_rule_lookup+0x456/0x630
[ 5324.666714][   T73]      ip6_route_input+0x59c/0xa50
[ 5324.666714][   T73]      ipv6_rcv+0x397/0x810
[ 5324.666714][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5324.666714][   T73]      process_backlog+0x101/0x620
[ 5324.666714][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5324.666714][   T73]      net_rx_action+0x495/0xbe0
[ 5324.666714][   T73]      __do_softirq+0x1b5/0x7f6
[ 5324.666714][   T73] 
[ 5324.668527][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5324.668527][   T73]      netdev_get_by_index+0x5e/0x80
[ 5324.668527][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5324.668527][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5324.668527][   T73]      ip6_route_add+0x1c/0x140
[ 5324.668527][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5324.668527][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5324.668527][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5324.668527][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5324.668527][   T73]      netlink_rcv_skb+0x130/0x360
[ 5324.668527][   T73]      netlink_unicast+0x449/0x710
[ 5324.668527][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5324.668527][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5324.668527][   T73]      ___sys_sendmsg+0xee/0x170
[ 5324.668527][   T73]      __sys_sendmsg+0xcd/0x170
[ 5324.668527][   T73]      do_syscall_64+0xc6/0x1e0
[ 5324.668527][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5324.668527][   T73] 
[ 5324.670779][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5324.670779][   T73]      netdev_get_by_index+0x5e/0x80
[ 5324.670779][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5324.670779][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5324.670779][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5324.670779][   T73]      ipv6_add_addr+0x411/0x2000
[ 5324.670779][   T73]      inet6_addr_add+0x30e/0xa40
[ 5324.670779][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5324.670779][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5324.670779][   T73]      netlink_rcv_skb+0x130/0x360
[ 5324.670779][   T73]      netlink_unicast+0x449/0x710
[ 5324.670779][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5324.670779][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5324.670779][   T73]      ___sys_sendmsg+0xee/0x170
[ 5324.670779][   T73]      __sys_sendmsg+0xcd/0x170
[ 5324.670779][   T73]      do_syscall_64+0xc6/0x1e0
[ 5324.670779][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5324.670779][   T73] 
[ 5324.673017][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5324.673017][   T73]      netdev_get_by_index+0x5e/0x80
[ 5324.673017][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5324.673017][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5324.673017][   T73]      ip6_route_add+0x1c/0x140
[ 5324.673017][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5324.673017][   T73]      addrconf_add_dev+0xe2/0x170
[ 5324.673017][   T73]      inet6_addr_add+0x12f/0xa40
[ 5324.673017][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5324.673017][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5324.673017][   T73]      netlink_rcv_skb+0x130/0x360
[ 5324.673017][   T73]      netlink_unicast+0x449/0x710
[ 5324.673017][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5324.673017][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5324.673017][   T73]      ___sys_sendmsg+0xee/0x170
[ 5324.673017][   T73]      __sys_sendmsg+0xcd/0x170
[ 5324.673017][   T73]      do_syscall_64+0xc6/0x1e0
[ 5324.673017][   T73] 
[ 5324.675170][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5324.675170][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5324.675170][   T73]      ipv6_find_idev+0x102/0x170
[ 5324.675170][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5324.675170][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5324.675170][   T73]      netlink_rcv_skb+0x130/0x360
[ 5324.675170][   T73]      netlink_unicast+0x449/0x710
[ 5324.675170][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5324.675170][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5324.675170][   T73]      ___sys_sendmsg+0xee/0x170
[ 5324.675170][   T73]      __sys_sendmsg+0xcd/0x170
[ 5324.675170][   T73]      do_syscall_64+0xc6/0x1e0
[ 5324.675170][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5324.675170][   T73] 
[ 5324.676911][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5324.676911][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5324.676911][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5324.676911][   T73]      ipv6_find_idev+0x102/0x170
[ 5324.676911][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5324.676911][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5324.676911][   T73]      netlink_rcv_skb+0x130/0x360
[ 5324.676911][   T73]      netlink_unicast+0x449/0x710
[ 5324.676911][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5324.676911][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5324.676911][   T73]      ___sys_sendmsg+0xee/0x170
[ 5324.676911][   T73]      __sys_sendmsg+0xcd/0x170
[ 5324.676911][   T73]      do_syscall_64+0xc6/0x1e0
[ 5324.676911][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5324.676911][   T73] 
[ 5324.678844][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5324.679111][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5324.679111][   T73]      netdev_get_by_index+0x5e/0x80
[ 5324.679111][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5324.679111][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5324.679111][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5324.679111][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5324.679111][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5324.679111][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5324.679111][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5324.679111][   T73]      addrconf_dad_begin+0x310/0x670
[ 5324.679111][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5324.679111][   T73]      process_one_work+0x84d/0x18a0
[ 5324.679111][   T73]      worker_thread+0x587/0xd30
[ 5324.679111][   T73]      kthread+0x28a/0x350
[ 5324.679111][   T73]      ret_from_fork+0x31/0x70
[ 5324.679111][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5324.679111][   T73] 
[ 5324.681274][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5324.681274][   T73]      netdev_get_by_index+0x5e/0x80
[ 5324.681274][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5324.681274][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5324.681274][   T73]      ip6_route_add+0x1c/0x140
[ 5324.681274][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5324.681274][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5324.681274][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5324.681274][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5324.681274][   T73]      netlink_rcv_skb+0x130/0x360
[ 5324.681274][   T73]      netlink_unicast+0x449/0x710
[ 5324.681274][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5324.681274][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5324.681274][   T73]      ___sys_sendmsg+0xee/0x170
[ 5324.681274][   T73]      __sys_sendmsg+0xcd/0x170
[ 5324.681274][   T73]      do_syscall_64+0xc6/0x1e0
[ 5324.681274][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5324.681274][   T73] 
[ 5324.683458][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5324.683458][   T73]      netdev_get_by_index+0x5e/0x80
[ 5324.683458][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5324.683458][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5324.683458][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5324.683458][   T73]      ipv6_add_addr+0x411/0x2000
[ 5324.683458][   T73]      inet6_addr_add+0x30e/0xa40
[ 5324.683458][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5324.683458][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5324.683458][   T73]      netlink_rcv_skb+0x130/0x360
[ 5324.683458][   T73]      netlink_unicast+0x449/0x710
[ 5324.683458][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5324.683458][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5324.683458][   T73]      ___sys_sendmsg+0xee/0x170
[ 5324.683458][   T73]      __sys_sendmsg+0xcd/0x170
[ 5324.683458][   T73]      do_syscall_64+0xc6/0x1e0
[ 5324.683458][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5324.683458][   T73] 
[ 5324.685634][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5324.685634][   T73]      netdev_get_by_index+0x5e/0x80
[ 5324.685634][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5324.685634][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5324.685634][   T73]      ip6_route_add+0x1c/0x140
[ 5324.685634][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5324.685634][   T73]      addrconf_add_dev+0xe2/0x170
[ 5324.685634][   T73]      inet6_addr_add+0x12f/0xa40
[ 5324.685634][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5324.685634][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5324.685634][   T73]      netlink_rcv_skb+0x130/0x360
[ 5324.685634][   T73]      netlink_unicast+0x449/0x710
[ 5324.685634][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5324.685634][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5324.685634][   T73]      ___sys_sendmsg+0xee/0x170
[ 5324.685634][   T73]      __sys_sendmsg+0xcd/0x170
[ 5324.685634][   T73]      do_syscall_64+0xc6/0x1e0
[ 5324.685634][   T73] 
[ 5324.687777][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5324.687777][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5324.687777][   T73]      ipv6_find_idev+0x102/0x170
[ 5324.687777][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5324.687777][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5324.687777][   T73]      netlink_rcv_skb+0x130/0x360
[ 5324.687777][   T73]      netlink_unicast+0x449/0x710
[ 5324.687777][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5324.687777][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5324.687777][   T73]      ___sys_sendmsg+0xee/0x170
[ 5324.687777][   T73]      __sys_sendmsg+0xcd/0x170
[ 5324.687777][   T73]      do_syscall_64+0xc6/0x1e0
[ 5324.687777][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5324.687777][   T73] 
[ 5324.689498][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5324.689498][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5324.689498][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5324.689498][   T73]      ipv6_find_idev+0x102/0x170
[ 5324.689498][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5324.689498][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5324.689498][   T73]      netlink_rcv_skb+0x130/0x360
[ 5324.689498][   T73]      netlink_unicast+0x449/0x710
[ 5324.689498][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5324.689498][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5324.689498][   T73]      ___sys_sendmsg+0xee/0x170
[ 5324.689498][   T73]      __sys_sendmsg+0xcd/0x170
[ 5324.689498][   T73]      do_syscall_64+0xc6/0x1e0
[ 5324.689498][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5324.689498][   T73] 
[ 5334.927746][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5334.928201][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5334.928201][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5334.928201][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5334.928201][   T73]      fib6_nh_init+0xa22/0x1580
[ 5334.928201][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5334.928201][   T73]      ip6_route_add+0x1c/0x140
[ 5334.928201][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5334.928201][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5334.928201][   T73]      netlink_rcv_skb+0x130/0x360
[ 5334.928201][   T73]      netlink_unicast+0x449/0x710
[ 5334.928201][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5334.928201][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5334.928201][   T73]      ___sys_sendmsg+0xee/0x170
[ 5334.928201][   T73]      __sys_sendmsg+0xcd/0x170
[ 5334.928201][   T73]      do_syscall_64+0xc6/0x1e0
[ 5334.928201][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5334.928201][   T73] 
[ 5334.930121][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5334.930121][   T73]      dst_init+0x84/0x4a0
[ 5334.930121][   T73]      dst_alloc+0x97/0x150
[ 5334.930121][   T73]      ip6_dst_alloc+0x23/0x90
[ 5334.930121][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5334.930121][   T73]      ip6_pol_route+0x56f/0x840
[ 5334.930121][   T73]      fib6_rule_lookup+0x456/0x630
[ 5334.930121][   T73]      ip6_route_input+0x59c/0xa50
[ 5334.930121][   T73]      ipv6_rcv+0x397/0x810
[ 5334.930121][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5334.930121][   T73]      process_backlog+0x101/0x620
[ 5334.930121][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5334.930121][   T73]      net_rx_action+0x495/0xbe0
[ 5334.930121][   T73]      __do_softirq+0x1b5/0x7f6
[ 5334.930121][   T73] 
[ 5334.931761][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5334.931761][   T73]      netdev_get_by_index+0x5e/0x80
[ 5334.931761][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5334.931761][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5334.931761][   T73]      ip6_route_add+0x1c/0x140
[ 5334.931761][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5334.931761][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5334.931761][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5334.931761][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5334.931761][   T73]      netlink_rcv_skb+0x130/0x360
[ 5334.931761][   T73]      netlink_unicast+0x449/0x710
[ 5334.931761][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5334.931761][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5334.931761][   T73]      ___sys_sendmsg+0xee/0x170
[ 5334.931761][   T73]      __sys_sendmsg+0xcd/0x170
[ 5334.931761][   T73]      do_syscall_64+0xc6/0x1e0
[ 5334.931761][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5334.931761][   T73] 
[ 5334.933753][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5334.933753][   T73]      netdev_get_by_index+0x5e/0x80
[ 5334.933753][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5334.933753][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5334.933753][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5334.933753][   T73]      ipv6_add_addr+0x411/0x2000
[ 5334.933753][   T73]      inet6_addr_add+0x30e/0xa40
[ 5334.933753][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5334.933753][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5334.933753][   T73]      netlink_rcv_skb+0x130/0x360
[ 5334.933753][   T73]      netlink_unicast+0x449/0x710
[ 5334.933753][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5334.933753][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5334.933753][   T73]      ___sys_sendmsg+0xee/0x170
[ 5334.933753][   T73]      __sys_sendmsg+0xcd/0x170
[ 5334.933753][   T73]      do_syscall_64+0xc6/0x1e0
[ 5334.933753][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5334.933753][   T73] 
[ 5334.935744][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5334.935744][   T73]      netdev_get_by_index+0x5e/0x80
[ 5334.935744][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5334.935744][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5334.935744][   T73]      ip6_route_add+0x1c/0x140
[ 5334.935744][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5334.935744][   T73]      addrconf_add_dev+0xe2/0x170
[ 5334.935744][   T73]      inet6_addr_add+0x12f/0xa40
[ 5334.935744][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5334.935744][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5334.935744][   T73]      netlink_rcv_skb+0x130/0x360
[ 5334.935744][   T73]      netlink_unicast+0x449/0x710
[ 5334.935744][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5334.935744][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5334.935744][   T73]      ___sys_sendmsg+0xee/0x170
[ 5334.935744][   T73]      __sys_sendmsg+0xcd/0x170
[ 5334.935744][   T73]      do_syscall_64+0xc6/0x1e0
[ 5334.935744][   T73] 
[ 5334.937713][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5334.937713][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5334.937713][   T73]      ipv6_find_idev+0x102/0x170
[ 5334.937713][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5334.937713][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5334.937713][   T73]      netlink_rcv_skb+0x130/0x360
[ 5334.937713][   T73]      netlink_unicast+0x449/0x710
[ 5334.937713][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5334.937713][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5334.937713][   T73]      ___sys_sendmsg+0xee/0x170
[ 5334.937713][   T73]      __sys_sendmsg+0xcd/0x170
[ 5334.937713][   T73]      do_syscall_64+0xc6/0x1e0
[ 5334.937713][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5334.937713][   T73] 
[ 5334.939250][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5334.939250][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5334.939250][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5334.939250][   T73]      ipv6_find_idev+0x102/0x170
[ 5334.939250][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5334.939250][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5334.939250][   T73]      netlink_rcv_skb+0x130/0x360
[ 5334.939250][   T73]      netlink_unicast+0x449/0x710
[ 5334.939250][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5334.939250][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5334.939250][   T73]      ___sys_sendmsg+0xee/0x170
[ 5334.939250][   T73]      __sys_sendmsg+0xcd/0x170
[ 5334.939250][   T73]      do_syscall_64+0xc6/0x1e0
[ 5334.939250][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5334.939250][   T73] 
[ 5334.941037][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5334.941316][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5334.941316][   T73]      netdev_get_by_index+0x5e/0x80
[ 5334.941316][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5334.941316][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5334.941316][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5334.941316][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5334.941316][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5334.941316][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5334.941316][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5334.941316][   T73]      addrconf_dad_begin+0x310/0x670
[ 5334.941316][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5334.941316][   T73]      process_one_work+0x84d/0x18a0
[ 5334.941316][   T73]      worker_thread+0x587/0xd30
[ 5334.941316][   T73]      kthread+0x28a/0x350
[ 5334.941316][   T73]      ret_from_fork+0x31/0x70
[ 5334.941316][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5334.941316][   T73] 
[ 5334.943772][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5334.943772][   T73]      netdev_get_by_index+0x5e/0x80
[ 5334.943772][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5334.943772][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5334.943772][   T73]      ip6_route_add+0x1c/0x140
[ 5334.943772][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5334.943772][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5334.943772][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5334.943772][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5334.943772][   T73]      netlink_rcv_skb+0x130/0x360
[ 5334.943772][   T73]      netlink_unicast+0x449/0x710
[ 5334.943772][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5334.943772][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5334.943772][   T73]      ___sys_sendmsg+0xee/0x170
[ 5334.943772][   T73]      __sys_sendmsg+0xcd/0x170
[ 5334.943772][   T73]      do_syscall_64+0xc6/0x1e0
[ 5334.943772][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5334.943772][   T73] 
[ 5334.945765][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5334.945765][   T73]      netdev_get_by_index+0x5e/0x80
[ 5334.945765][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5334.945765][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5334.945765][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5334.945765][   T73]      ipv6_add_addr+0x411/0x2000
[ 5334.945765][   T73]      inet6_addr_add+0x30e/0xa40
[ 5334.945765][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5334.945765][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5334.945765][   T73]      netlink_rcv_skb+0x130/0x360
[ 5334.945765][   T73]      netlink_unicast+0x449/0x710
[ 5334.945765][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5334.945765][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5334.945765][   T73]      ___sys_sendmsg+0xee/0x170
[ 5334.945765][   T73]      __sys_sendmsg+0xcd/0x170
[ 5334.945765][   T73]      do_syscall_64+0xc6/0x1e0
[ 5334.945765][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5334.945765][   T73] 
[ 5334.947749][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5334.947749][   T73]      netdev_get_by_index+0x5e/0x80
[ 5334.947749][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5334.947749][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5334.947749][   T73]      ip6_route_add+0x1c/0x140
[ 5334.947749][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5334.947749][   T73]      addrconf_add_dev+0xe2/0x170
[ 5334.947749][   T73]      inet6_addr_add+0x12f/0xa40
[ 5334.947749][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5334.947749][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5334.947749][   T73]      netlink_rcv_skb+0x130/0x360
[ 5334.947749][   T73]      netlink_unicast+0x449/0x710
[ 5334.947749][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5334.947749][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5334.947749][   T73]      ___sys_sendmsg+0xee/0x170
[ 5334.947749][   T73]      __sys_sendmsg+0xcd/0x170
[ 5334.947749][   T73]      do_syscall_64+0xc6/0x1e0
[ 5334.947749][   T73] 
[ 5334.949701][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5334.949701][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5334.949701][   T73]      ipv6_find_idev+0x102/0x170
[ 5334.949701][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5334.949701][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5334.949701][   T73]      netlink_rcv_skb+0x130/0x360
[ 5334.949701][   T73]      netlink_unicast+0x449/0x710
[ 5334.949701][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5334.949701][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5334.949701][   T73]      ___sys_sendmsg+0xee/0x170
[ 5334.949701][   T73]      __sys_sendmsg+0xcd/0x170
[ 5334.949701][   T73]      do_syscall_64+0xc6/0x1e0
[ 5334.949701][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5334.949701][   T73] 
[ 5334.951230][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5334.951230][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5334.951230][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5334.951230][   T73]      ipv6_find_idev+0x102/0x170
[ 5334.951230][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5334.951230][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5334.951230][   T73]      netlink_rcv_skb+0x130/0x360
[ 5334.951230][   T73]      netlink_unicast+0x449/0x710
[ 5334.951230][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5334.951230][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5334.951230][   T73]      ___sys_sendmsg+0xee/0x170
[ 5334.951230][   T73]      __sys_sendmsg+0xcd/0x170
[ 5334.951230][   T73]      do_syscall_64+0xc6/0x1e0
[ 5334.951230][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5334.951230][   T73] 
[ 5334.952895][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5334.953165][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5334.953165][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5334.953165][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5334.953165][   T73]      fib6_nh_init+0xa22/0x1580
[ 5334.953165][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5334.953165][   T73]      ip6_route_add+0x1c/0x140
[ 5334.953165][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5334.953165][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5334.953165][   T73]      netlink_rcv_skb+0x130/0x360
[ 5334.953165][   T73]      netlink_unicast+0x449/0x710
[ 5334.953165][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5334.953165][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5334.953165][   T73]      ___sys_sendmsg+0xee/0x170
[ 5334.953165][   T73]      __sys_sendmsg+0xcd/0x170
[ 5334.953165][   T73]      do_syscall_64+0xc6/0x1e0
[ 5334.953165][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5334.953165][   T73] 
[ 5334.955221][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5334.955221][   T73]      dst_init+0x84/0x4a0
[ 5334.955221][   T73]      dst_alloc+0x97/0x150
[ 5334.955221][   T73]      ip6_dst_alloc+0x23/0x90
[ 5334.955221][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5334.955221][   T73]      ip6_pol_route+0x56f/0x840
[ 5334.955221][   T73]      fib6_rule_lookup+0x456/0x630
[ 5334.955221][   T73]      ip6_route_input+0x59c/0xa50
[ 5334.955221][   T73]      ipv6_rcv+0x397/0x810
[ 5334.955221][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5334.955221][   T73]      process_backlog+0x101/0x620
[ 5334.955221][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5334.955221][   T73]      net_rx_action+0x495/0xbe0
[ 5334.955221][   T73]      __do_softirq+0x1b5/0x7f6
[ 5334.955221][   T73] 
[ 5334.957088][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5334.957088][   T73]      netdev_get_by_index+0x5e/0x80
[ 5334.957088][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5334.957088][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5334.957088][   T73]      ip6_route_add+0x1c/0x140
[ 5334.957088][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5334.957088][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5334.957088][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5334.957088][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5334.957088][   T73]      netlink_rcv_skb+0x130/0x360
[ 5334.957088][   T73]      netlink_unicast+0x449/0x710
[ 5334.957088][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5334.957088][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5334.957088][   T73]      ___sys_sendmsg+0xee/0x170
[ 5334.957088][   T73]      __sys_sendmsg+0xcd/0x170
[ 5334.957088][   T73]      do_syscall_64+0xc6/0x1e0
[ 5334.957088][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5334.957088][   T73] 
[ 5334.959320][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5334.959320][   T73]      netdev_get_by_index+0x5e/0x80
[ 5334.959320][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5334.959320][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5334.959320][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5334.959320][   T73]      ipv6_add_addr+0x411/0x2000
[ 5334.959320][   T73]      inet6_addr_add+0x30e/0xa40
[ 5334.959320][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5334.959320][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5334.959320][   T73]      netlink_rcv_skb+0x130/0x360
[ 5334.959320][   T73]      netlink_unicast+0x449/0x710
[ 5334.959320][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5334.959320][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5334.959320][   T73]      ___sys_sendmsg+0xee/0x170
[ 5334.959320][   T73]      __sys_sendmsg+0xcd/0x170
[ 5334.959320][   T73]      do_syscall_64+0xc6/0x1e0
[ 5334.959320][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5334.959320][   T73] 
[ 5334.961512][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5334.961512][   T73]      netdev_get_by_index+0x5e/0x80
[ 5334.961512][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5334.961512][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5334.961512][   T73]      ip6_route_add+0x1c/0x140
[ 5334.961512][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5334.961512][   T73]      addrconf_add_dev+0xe2/0x170
[ 5334.961512][   T73]      inet6_addr_add+0x12f/0xa40
[ 5334.961512][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5334.961512][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5334.961512][   T73]      netlink_rcv_skb+0x130/0x360
[ 5334.961512][   T73]      netlink_unicast+0x449/0x710
[ 5334.961512][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5334.961512][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5334.961512][   T73]      ___sys_sendmsg+0xee/0x170
[ 5334.961512][   T73]      __sys_sendmsg+0xcd/0x170
[ 5334.961512][   T73]      do_syscall_64+0xc6/0x1e0
[ 5334.961512][   T73] 
[ 5334.964302][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5334.964302][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5334.964302][   T73]      ipv6_find_idev+0x102/0x170
[ 5334.964302][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5334.964302][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5334.964302][   T73]      netlink_rcv_skb+0x130/0x360
[ 5334.964302][   T73]      netlink_unicast+0x449/0x710
[ 5334.964302][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5334.964302][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5334.964302][   T73]      ___sys_sendmsg+0xee/0x170
[ 5334.964302][   T73]      __sys_sendmsg+0xcd/0x170
[ 5334.964302][   T73]      do_syscall_64+0xc6/0x1e0
[ 5334.964302][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5334.964302][   T73] 
[ 5334.966078][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5334.966078][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5334.966078][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5334.966078][   T73]      ipv6_find_idev+0x102/0x170
[ 5334.966078][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5334.966078][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5334.966078][   T73]      netlink_rcv_skb+0x130/0x360
[ 5334.966078][   T73]      netlink_unicast+0x449/0x710
[ 5334.966078][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5334.966078][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5334.966078][   T73]      ___sys_sendmsg+0xee/0x170
[ 5334.966078][   T73]      __sys_sendmsg+0xcd/0x170
[ 5334.966078][   T73]      do_syscall_64+0xc6/0x1e0
[ 5334.966078][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5334.966078][   T73] 
[ 5334.968022][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5334.968298][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5334.968298][   T73]      netdev_get_by_index+0x5e/0x80
[ 5334.968298][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5334.968298][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5334.968298][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5334.968298][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5334.968298][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5334.968298][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5334.968298][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5334.968298][   T73]      addrconf_dad_begin+0x310/0x670
[ 5334.968298][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5334.968298][   T73]      process_one_work+0x84d/0x18a0
[ 5334.968298][   T73]      worker_thread+0x587/0xd30
[ 5334.968298][   T73]      kthread+0x28a/0x350
[ 5334.968298][   T73]      ret_from_fork+0x31/0x70
[ 5334.968298][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5334.968298][   T73] 
[ 5334.970456][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5334.970456][   T73]      netdev_get_by_index+0x5e/0x80
[ 5334.970456][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5334.970456][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5334.970456][   T73]      ip6_route_add+0x1c/0x140
[ 5334.970456][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5334.970456][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5334.970456][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5334.970456][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5334.970456][   T73]      netlink_rcv_skb+0x130/0x360
[ 5334.970456][   T73]      netlink_unicast+0x449/0x710
[ 5334.970456][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5334.970456][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5334.970456][   T73]      ___sys_sendmsg+0xee/0x170
[ 5334.970456][   T73]      __sys_sendmsg+0xcd/0x170
[ 5334.970456][   T73]      do_syscall_64+0xc6/0x1e0
[ 5334.970456][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5334.970456][   T73] 
[ 5334.972688][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5334.972688][   T73]      netdev_get_by_index+0x5e/0x80
[ 5334.972688][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5334.972688][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5334.972688][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5334.972688][   T73]      ipv6_add_addr+0x411/0x2000
[ 5334.972688][   T73]      inet6_addr_add+0x30e/0xa40
[ 5334.972688][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5334.972688][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5334.972688][   T73]      netlink_rcv_skb+0x130/0x360
[ 5334.972688][   T73]      netlink_unicast+0x449/0x710
[ 5334.972688][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5334.972688][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5334.972688][   T73]      ___sys_sendmsg+0xee/0x170
[ 5334.972688][   T73]      __sys_sendmsg+0xcd/0x170
[ 5334.972688][   T73]      do_syscall_64+0xc6/0x1e0
[ 5334.972688][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5334.972688][   T73] 
[ 5334.974858][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5334.974858][   T73]      netdev_get_by_index+0x5e/0x80
[ 5334.974858][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5334.974858][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5334.974858][   T73]      ip6_route_add+0x1c/0x140
[ 5334.974858][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5334.974858][   T73]      addrconf_add_dev+0xe2/0x170
[ 5334.974858][   T73]      inet6_addr_add+0x12f/0xa40
[ 5334.974858][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5334.974858][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5334.974858][   T73]      netlink_rcv_skb+0x130/0x360
[ 5334.974858][   T73]      netlink_unicast+0x449/0x710
[ 5334.974858][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5334.974858][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5334.974858][   T73]      ___sys_sendmsg+0xee/0x170
[ 5334.974858][   T73]      __sys_sendmsg+0xcd/0x170
[ 5334.974858][   T73]      do_syscall_64+0xc6/0x1e0
[ 5334.974858][   T73] 
[ 5334.977120][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5334.977120][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5334.977120][   T73]      ipv6_find_idev+0x102/0x170
[ 5334.977120][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5334.977120][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5334.977120][   T73]      netlink_rcv_skb+0x130/0x360
[ 5334.977120][   T73]      netlink_unicast+0x449/0x710
[ 5334.977120][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5334.977120][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5334.977120][   T73]      ___sys_sendmsg+0xee/0x170
[ 5334.977120][   T73]      __sys_sendmsg+0xcd/0x170
[ 5334.977120][   T73]      do_syscall_64+0xc6/0x1e0
[ 5334.977120][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5334.977120][   T73] 
[ 5334.978843][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5334.978843][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5334.978843][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5334.978843][   T73]      ipv6_find_idev+0x102/0x170
[ 5334.978843][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5334.978843][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5334.978843][   T73]      netlink_rcv_skb+0x130/0x360
[ 5334.978843][   T73]      netlink_unicast+0x449/0x710
[ 5334.978843][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5334.978843][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5334.978843][   T73]      ___sys_sendmsg+0xee/0x170
[ 5334.978843][   T73]      __sys_sendmsg+0xcd/0x170
[ 5334.978843][   T73]      do_syscall_64+0xc6/0x1e0
[ 5334.978843][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5334.978843][   T73] 
[ 5345.031687][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5345.032176][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5345.032176][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5345.032176][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5345.032176][   T73]      fib6_nh_init+0xa22/0x1580
[ 5345.032176][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5345.032176][   T73]      ip6_route_add+0x1c/0x140
[ 5345.032176][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5345.032176][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5345.032176][   T73]      netlink_rcv_skb+0x130/0x360
[ 5345.032176][   T73]      netlink_unicast+0x449/0x710
[ 5345.032176][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5345.032176][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5345.032176][   T73]      ___sys_sendmsg+0xee/0x170
[ 5345.032176][   T73]      __sys_sendmsg+0xcd/0x170
[ 5345.032176][   T73]      do_syscall_64+0xc6/0x1e0
[ 5345.032176][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5345.032176][   T73] 
[ 5345.034089][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5345.034089][   T73]      dst_init+0x84/0x4a0
[ 5345.034089][   T73]      dst_alloc+0x97/0x150
[ 5345.034089][   T73]      ip6_dst_alloc+0x23/0x90
[ 5345.034089][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5345.034089][   T73]      ip6_pol_route+0x56f/0x840
[ 5345.034089][   T73]      fib6_rule_lookup+0x456/0x630
[ 5345.034089][   T73]      ip6_route_input+0x59c/0xa50
[ 5345.034089][   T73]      ipv6_rcv+0x397/0x810
[ 5345.034089][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5345.034089][   T73]      process_backlog+0x101/0x620
[ 5345.034089][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5345.034089][   T73]      net_rx_action+0x495/0xbe0
[ 5345.034089][   T73]      __do_softirq+0x1b5/0x7f6
[ 5345.034089][   T73] 
[ 5345.035763][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5345.035763][   T73]      netdev_get_by_index+0x5e/0x80
[ 5345.035763][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5345.035763][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5345.035763][   T73]      ip6_route_add+0x1c/0x140
[ 5345.035763][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5345.035763][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5345.035763][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5345.035763][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5345.035763][   T73]      netlink_rcv_skb+0x130/0x360
[ 5345.035763][   T73]      netlink_unicast+0x449/0x710
[ 5345.035763][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5345.035763][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5345.035763][   T73]      ___sys_sendmsg+0xee/0x170
[ 5345.035763][   T73]      __sys_sendmsg+0xcd/0x170
[ 5345.035763][   T73]      do_syscall_64+0xc6/0x1e0
[ 5345.035763][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5345.035763][   T73] 
[ 5345.037784][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5345.037784][   T73]      netdev_get_by_index+0x5e/0x80
[ 5345.037784][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5345.037784][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5345.037784][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5345.037784][   T73]      ipv6_add_addr+0x411/0x2000
[ 5345.037784][   T73]      inet6_addr_add+0x30e/0xa40
[ 5345.037784][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5345.037784][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5345.037784][   T73]      netlink_rcv_skb+0x130/0x360
[ 5345.037784][   T73]      netlink_unicast+0x449/0x710
[ 5345.037784][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5345.037784][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5345.037784][   T73]      ___sys_sendmsg+0xee/0x170
[ 5345.037784][   T73]      __sys_sendmsg+0xcd/0x170
[ 5345.037784][   T73]      do_syscall_64+0xc6/0x1e0
[ 5345.037784][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5345.037784][   T73] 
[ 5345.039893][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5345.039893][   T73]      netdev_get_by_index+0x5e/0x80
[ 5345.039893][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5345.039893][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5345.039893][   T73]      ip6_route_add+0x1c/0x140
[ 5345.039893][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5345.039893][   T73]      addrconf_add_dev+0xe2/0x170
[ 5345.039893][   T73]      inet6_addr_add+0x12f/0xa40
[ 5345.039893][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5345.039893][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5345.039893][   T73]      netlink_rcv_skb+0x130/0x360
[ 5345.039893][   T73]      netlink_unicast+0x449/0x710
[ 5345.039893][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5345.039893][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5345.039893][   T73]      ___sys_sendmsg+0xee/0x170
[ 5345.039893][   T73]      __sys_sendmsg+0xcd/0x170
[ 5345.039893][   T73]      do_syscall_64+0xc6/0x1e0
[ 5345.039893][   T73] 
[ 5345.041894][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5345.041894][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5345.041894][   T73]      ipv6_find_idev+0x102/0x170
[ 5345.041894][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5345.041894][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5345.041894][   T73]      netlink_rcv_skb+0x130/0x360
[ 5345.041894][   T73]      netlink_unicast+0x449/0x710
[ 5345.041894][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5345.041894][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5345.041894][   T73]      ___sys_sendmsg+0xee/0x170
[ 5345.041894][   T73]      __sys_sendmsg+0xcd/0x170
[ 5345.041894][   T73]      do_syscall_64+0xc6/0x1e0
[ 5345.041894][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5345.041894][   T73] 
[ 5345.043455][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5345.043455][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5345.043455][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5345.043455][   T73]      ipv6_find_idev+0x102/0x170
[ 5345.043455][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5345.043455][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5345.043455][   T73]      netlink_rcv_skb+0x130/0x360
[ 5345.043455][   T73]      netlink_unicast+0x449/0x710
[ 5345.043455][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5345.043455][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5345.043455][   T73]      ___sys_sendmsg+0xee/0x170
[ 5345.043455][   T73]      __sys_sendmsg+0xcd/0x170
[ 5345.043455][   T73]      do_syscall_64+0xc6/0x1e0
[ 5345.043455][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5345.043455][   T73] 
[ 5345.045163][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5345.045446][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5345.045446][   T73]      netdev_get_by_index+0x5e/0x80
[ 5345.045446][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5345.045446][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5345.045446][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5345.045446][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5345.045446][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5345.045446][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5345.045446][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5345.045446][   T73]      addrconf_dad_begin+0x310/0x670
[ 5345.045446][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5345.045446][   T73]      process_one_work+0x84d/0x18a0
[ 5345.045446][   T73]      worker_thread+0x587/0xd30
[ 5345.045446][   T73]      kthread+0x28a/0x350
[ 5345.045446][   T73]      ret_from_fork+0x31/0x70
[ 5345.045446][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5345.045446][   T73] 
[ 5345.047383][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5345.047383][   T73]      netdev_get_by_index+0x5e/0x80
[ 5345.047383][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5345.047383][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5345.047383][   T73]      ip6_route_add+0x1c/0x140
[ 5345.047383][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5345.047383][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5345.047383][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5345.047383][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5345.047383][   T73]      netlink_rcv_skb+0x130/0x360
[ 5345.047383][   T73]      netlink_unicast+0x449/0x710
[ 5345.047383][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5345.047383][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5345.047383][   T73]      ___sys_sendmsg+0xee/0x170
[ 5345.047383][   T73]      __sys_sendmsg+0xcd/0x170
[ 5345.047383][   T73]      do_syscall_64+0xc6/0x1e0
[ 5345.047383][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5345.047383][   T73] 
[ 5345.049404][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5345.049404][   T73]      netdev_get_by_index+0x5e/0x80
[ 5345.049404][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5345.049404][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5345.049404][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5345.049404][   T73]      ipv6_add_addr+0x411/0x2000
[ 5345.049404][   T73]      inet6_addr_add+0x30e/0xa40
[ 5345.049404][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5345.049404][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5345.049404][   T73]      netlink_rcv_skb+0x130/0x360
[ 5345.049404][   T73]      netlink_unicast+0x449/0x710
[ 5345.049404][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5345.049404][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5345.049404][   T73]      ___sys_sendmsg+0xee/0x170
[ 5345.049404][   T73]      __sys_sendmsg+0xcd/0x170
[ 5345.049404][   T73]      do_syscall_64+0xc6/0x1e0
[ 5345.049404][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5345.049404][   T73] 
[ 5345.051440][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5345.051440][   T73]      netdev_get_by_index+0x5e/0x80
[ 5345.051440][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5345.051440][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5345.051440][   T73]      ip6_route_add+0x1c/0x140
[ 5345.051440][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5345.051440][   T73]      addrconf_add_dev+0xe2/0x170
[ 5345.051440][   T73]      inet6_addr_add+0x12f/0xa40
[ 5345.051440][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5345.051440][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5345.051440][   T73]      netlink_rcv_skb+0x130/0x360
[ 5345.051440][   T73]      netlink_unicast+0x449/0x710
[ 5345.051440][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5345.051440][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5345.051440][   T73]      ___sys_sendmsg+0xee/0x170
[ 5345.051440][   T73]      __sys_sendmsg+0xcd/0x170
[ 5345.051440][   T73]      do_syscall_64+0xc6/0x1e0
[ 5345.051440][   T73] 
[ 5345.053420][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5345.053420][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5345.053420][   T73]      ipv6_find_idev+0x102/0x170
[ 5345.053420][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5345.053420][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5345.053420][   T73]      netlink_rcv_skb+0x130/0x360
[ 5345.053420][   T73]      netlink_unicast+0x449/0x710
[ 5345.053420][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5345.053420][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5345.053420][   T73]      ___sys_sendmsg+0xee/0x170
[ 5345.053420][   T73]      __sys_sendmsg+0xcd/0x170
[ 5345.053420][   T73]      do_syscall_64+0xc6/0x1e0
[ 5345.053420][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5345.053420][   T73] 
[ 5345.054986][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5345.054986][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5345.054986][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5345.054986][   T73]      ipv6_find_idev+0x102/0x170
[ 5345.054986][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5345.054986][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5345.054986][   T73]      netlink_rcv_skb+0x130/0x360
[ 5345.054986][   T73]      netlink_unicast+0x449/0x710
[ 5345.054986][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5345.054986][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5345.054986][   T73]      ___sys_sendmsg+0xee/0x170
[ 5345.054986][   T73]      __sys_sendmsg+0xcd/0x170
[ 5345.054986][   T73]      do_syscall_64+0xc6/0x1e0
[ 5345.054986][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5345.054986][   T73] 
[ 5345.056681][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5345.056951][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5345.056951][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5345.056951][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5345.056951][   T73]      fib6_nh_init+0xa22/0x1580
[ 5345.056951][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5345.056951][   T73]      ip6_route_add+0x1c/0x140
[ 5345.056951][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5345.056951][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5345.056951][   T73]      netlink_rcv_skb+0x130/0x360
[ 5345.056951][   T73]      netlink_unicast+0x449/0x710
[ 5345.056951][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5345.056951][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5345.056951][   T73]      ___sys_sendmsg+0xee/0x170
[ 5345.056951][   T73]      __sys_sendmsg+0xcd/0x170
[ 5345.056951][   T73]      do_syscall_64+0xc6/0x1e0
[ 5345.056951][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5345.056951][   T73] 
[ 5345.059013][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5345.059013][   T73]      dst_init+0x84/0x4a0
[ 5345.059013][   T73]      dst_alloc+0x97/0x150
[ 5345.059013][   T73]      ip6_dst_alloc+0x23/0x90
[ 5345.059013][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5345.059013][   T73]      ip6_pol_route+0x56f/0x840
[ 5345.059013][   T73]      fib6_rule_lookup+0x456/0x630
[ 5345.059013][   T73]      ip6_route_input+0x59c/0xa50
[ 5345.059013][   T73]      ipv6_rcv+0x397/0x810
[ 5345.059013][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5345.059013][   T73]      process_backlog+0x101/0x620
[ 5345.059013][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5345.059013][   T73]      net_rx_action+0x495/0xbe0
[ 5345.059013][   T73]      __do_softirq+0x1b5/0x7f6
[ 5345.059013][   T73] 
[ 5345.060757][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5345.060757][   T73]      netdev_get_by_index+0x5e/0x80
[ 5345.060757][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5345.060757][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5345.060757][   T73]      ip6_route_add+0x1c/0x140
[ 5345.060757][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5345.060757][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5345.060757][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5345.060757][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5345.060757][   T73]      netlink_rcv_skb+0x130/0x360
[ 5345.060757][   T73]      netlink_unicast+0x449/0x710
[ 5345.060757][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5345.060757][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5345.060757][   T73]      ___sys_sendmsg+0xee/0x170
[ 5345.060757][   T73]      __sys_sendmsg+0xcd/0x170
[ 5345.060757][   T73]      do_syscall_64+0xc6/0x1e0
[ 5345.060757][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5345.060757][   T73] 
[ 5345.062925][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5345.062925][   T73]      netdev_get_by_index+0x5e/0x80
[ 5345.062925][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5345.062925][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5345.062925][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5345.062925][   T73]      ipv6_add_addr+0x411/0x2000
[ 5345.062925][   T73]      inet6_addr_add+0x30e/0xa40
[ 5345.062925][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5345.062925][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5345.062925][   T73]      netlink_rcv_skb+0x130/0x360
[ 5345.062925][   T73]      netlink_unicast+0x449/0x710
[ 5345.062925][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5345.062925][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5345.062925][   T73]      ___sys_sendmsg+0xee/0x170
[ 5345.062925][   T73]      __sys_sendmsg+0xcd/0x170
[ 5345.062925][   T73]      do_syscall_64+0xc6/0x1e0
[ 5345.062925][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5345.062925][   T73] 
[ 5345.065089][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5345.065089][   T73]      netdev_get_by_index+0x5e/0x80
[ 5345.065089][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5345.065089][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5345.065089][   T73]      ip6_route_add+0x1c/0x140
[ 5345.065089][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5345.065089][   T73]      addrconf_add_dev+0xe2/0x170
[ 5345.065089][   T73]      inet6_addr_add+0x12f/0xa40
[ 5345.065089][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5345.065089][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5345.065089][   T73]      netlink_rcv_skb+0x130/0x360
[ 5345.065089][   T73]      netlink_unicast+0x449/0x710
[ 5345.065089][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5345.065089][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5345.065089][   T73]      ___sys_sendmsg+0xee/0x170
[ 5345.065089][   T73]      __sys_sendmsg+0xcd/0x170
[ 5345.065089][   T73]      do_syscall_64+0xc6/0x1e0
[ 5345.065089][   T73] 
[ 5345.067234][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5345.067234][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5345.067234][   T73]      ipv6_find_idev+0x102/0x170
[ 5345.067234][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5345.067234][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5345.067234][   T73]      netlink_rcv_skb+0x130/0x360
[ 5345.067234][   T73]      netlink_unicast+0x449/0x710
[ 5345.067234][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5345.067234][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5345.067234][   T73]      ___sys_sendmsg+0xee/0x170
[ 5345.067234][   T73]      __sys_sendmsg+0xcd/0x170
[ 5345.067234][   T73]      do_syscall_64+0xc6/0x1e0
[ 5345.067234][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5345.067234][   T73] 
[ 5345.068868][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5345.068868][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5345.068868][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5345.068868][   T73]      ipv6_find_idev+0x102/0x170
[ 5345.068868][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5345.068868][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5345.068868][   T73]      netlink_rcv_skb+0x130/0x360
[ 5345.068868][   T73]      netlink_unicast+0x449/0x710
[ 5345.068868][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5345.068868][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5345.068868][   T73]      ___sys_sendmsg+0xee/0x170
[ 5345.068868][   T73]      __sys_sendmsg+0xcd/0x170
[ 5345.068868][   T73]      do_syscall_64+0xc6/0x1e0
[ 5345.068868][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5345.068868][   T73] 
[ 5345.070728][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5345.071018][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5345.071018][   T73]      netdev_get_by_index+0x5e/0x80
[ 5345.071018][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5345.071018][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5345.071018][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5345.071018][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5345.071018][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5345.071018][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5345.071018][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5345.071018][   T73]      addrconf_dad_begin+0x310/0x670
[ 5345.071018][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5345.071018][   T73]      process_one_work+0x84d/0x18a0
[ 5345.071018][   T73]      worker_thread+0x587/0xd30
[ 5345.071018][   T73]      kthread+0x28a/0x350
[ 5345.071018][   T73]      ret_from_fork+0x31/0x70
[ 5345.071018][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5345.071018][   T73] 
[ 5345.073096][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5345.073096][   T73]      netdev_get_by_index+0x5e/0x80
[ 5345.073096][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5345.073096][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5345.073096][   T73]      ip6_route_add+0x1c/0x140
[ 5345.073096][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5345.073096][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5345.073096][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5345.073096][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5345.073096][   T73]      netlink_rcv_skb+0x130/0x360
[ 5345.073096][   T73]      netlink_unicast+0x449/0x710
[ 5345.073096][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5345.073096][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5345.073096][   T73]      ___sys_sendmsg+0xee/0x170
[ 5345.073096][   T73]      __sys_sendmsg+0xcd/0x170
[ 5345.073096][   T73]      do_syscall_64+0xc6/0x1e0
[ 5345.073096][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5345.073096][   T73] 
[ 5345.075266][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5345.075266][   T73]      netdev_get_by_index+0x5e/0x80
[ 5345.075266][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5345.075266][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5345.075266][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5345.075266][   T73]      ipv6_add_addr+0x411/0x2000
[ 5345.075266][   T73]      inet6_addr_add+0x30e/0xa40
[ 5345.075266][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5345.075266][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5345.075266][   T73]      netlink_rcv_skb+0x130/0x360
[ 5345.075266][   T73]      netlink_unicast+0x449/0x710
[ 5345.075266][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5345.075266][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5345.075266][   T73]      ___sys_sendmsg+0xee/0x170
[ 5345.075266][   T73]      __sys_sendmsg+0xcd/0x170
[ 5345.075266][   T73]      do_syscall_64+0xc6/0x1e0
[ 5345.075266][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5345.075266][   T73] 
[ 5345.077423][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5345.077423][   T73]      netdev_get_by_index+0x5e/0x80
[ 5345.077423][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5345.077423][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5345.077423][   T73]      ip6_route_add+0x1c/0x140
[ 5345.077423][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5345.077423][   T73]      addrconf_add_dev+0xe2/0x170
[ 5345.077423][   T73]      inet6_addr_add+0x12f/0xa40
[ 5345.077423][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5345.077423][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5345.077423][   T73]      netlink_rcv_skb+0x130/0x360
[ 5345.077423][   T73]      netlink_unicast+0x449/0x710
[ 5345.077423][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5345.077423][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5345.077423][   T73]      ___sys_sendmsg+0xee/0x170
[ 5345.077423][   T73]      __sys_sendmsg+0xcd/0x170
[ 5345.077423][   T73]      do_syscall_64+0xc6/0x1e0
[ 5345.077423][   T73] 
[ 5345.079531][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5345.079531][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5345.079531][   T73]      ipv6_find_idev+0x102/0x170
[ 5345.079531][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5345.079531][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5345.079531][   T73]      netlink_rcv_skb+0x130/0x360
[ 5345.079531][   T73]      netlink_unicast+0x449/0x710
[ 5345.079531][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5345.079531][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5345.079531][   T73]      ___sys_sendmsg+0xee/0x170
[ 5345.079531][   T73]      __sys_sendmsg+0xcd/0x170
[ 5345.079531][   T73]      do_syscall_64+0xc6/0x1e0
[ 5345.079531][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5345.079531][   T73] 
[ 5345.081159][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5345.081159][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5345.081159][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5345.081159][   T73]      ipv6_find_idev+0x102/0x170
[ 5345.081159][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5345.081159][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5345.081159][   T73]      netlink_rcv_skb+0x130/0x360
[ 5345.081159][   T73]      netlink_unicast+0x449/0x710
[ 5345.081159][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5345.081159][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5345.081159][   T73]      ___sys_sendmsg+0xee/0x170
[ 5345.081159][   T73]      __sys_sendmsg+0xcd/0x170
[ 5345.081159][   T73]      do_syscall_64+0xc6/0x1e0
[ 5345.081159][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5345.081159][   T73] 
[ 5355.335723][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5355.336239][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5355.336239][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5355.336239][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5355.336239][   T73]      fib6_nh_init+0xa22/0x1580
[ 5355.336239][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5355.336239][   T73]      ip6_route_add+0x1c/0x140
[ 5355.336239][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5355.336239][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5355.336239][   T73]      netlink_rcv_skb+0x130/0x360
[ 5355.336239][   T73]      netlink_unicast+0x449/0x710
[ 5355.336239][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5355.336239][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5355.336239][   T73]      ___sys_sendmsg+0xee/0x170
[ 5355.336239][   T73]      __sys_sendmsg+0xcd/0x170
[ 5355.336239][   T73]      do_syscall_64+0xc6/0x1e0
[ 5355.336239][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5355.336239][   T73] 
[ 5355.338356][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5355.338356][   T73]      dst_init+0x84/0x4a0
[ 5355.338356][   T73]      dst_alloc+0x97/0x150
[ 5355.338356][   T73]      ip6_dst_alloc+0x23/0x90
[ 5355.338356][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5355.338356][   T73]      ip6_pol_route+0x56f/0x840
[ 5355.338356][   T73]      fib6_rule_lookup+0x456/0x630
[ 5355.338356][   T73]      ip6_route_input+0x59c/0xa50
[ 5355.338356][   T73]      ipv6_rcv+0x397/0x810
[ 5355.338356][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5355.338356][   T73]      process_backlog+0x101/0x620
[ 5355.338356][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5355.338356][   T73]      net_rx_action+0x495/0xbe0
[ 5355.338356][   T73]      __do_softirq+0x1b5/0x7f6
[ 5355.338356][   T73] 
[ 5355.340198][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5355.340198][   T73]      netdev_get_by_index+0x5e/0x80
[ 5355.340198][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5355.340198][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5355.340198][   T73]      ip6_route_add+0x1c/0x140
[ 5355.340198][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5355.340198][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5355.340198][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5355.340198][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5355.340198][   T73]      netlink_rcv_skb+0x130/0x360
[ 5355.340198][   T73]      netlink_unicast+0x449/0x710
[ 5355.340198][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5355.340198][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5355.340198][   T73]      ___sys_sendmsg+0xee/0x170
[ 5355.340198][   T73]      __sys_sendmsg+0xcd/0x170
[ 5355.340198][   T73]      do_syscall_64+0xc6/0x1e0
[ 5355.340198][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5355.340198][   T73] 
[ 5355.342439][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5355.342439][   T73]      netdev_get_by_index+0x5e/0x80
[ 5355.342439][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5355.342439][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5355.342439][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5355.342439][   T73]      ipv6_add_addr+0x411/0x2000
[ 5355.342439][   T73]      inet6_addr_add+0x30e/0xa40
[ 5355.342439][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5355.342439][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5355.342439][   T73]      netlink_rcv_skb+0x130/0x360
[ 5355.342439][   T73]      netlink_unicast+0x449/0x710
[ 5355.342439][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5355.342439][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5355.342439][   T73]      ___sys_sendmsg+0xee/0x170
[ 5355.342439][   T73]      __sys_sendmsg+0xcd/0x170
[ 5355.342439][   T73]      do_syscall_64+0xc6/0x1e0
[ 5355.342439][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5355.342439][   T73] 
[ 5355.344668][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5355.344668][   T73]      netdev_get_by_index+0x5e/0x80
[ 5355.344668][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5355.344668][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5355.344668][   T73]      ip6_route_add+0x1c/0x140
[ 5355.344668][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5355.344668][   T73]      addrconf_add_dev+0xe2/0x170
[ 5355.344668][   T73]      inet6_addr_add+0x12f/0xa40
[ 5355.344668][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5355.344668][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5355.344668][   T73]      netlink_rcv_skb+0x130/0x360
[ 5355.344668][   T73]      netlink_unicast+0x449/0x710
[ 5355.344668][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5355.344668][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5355.344668][   T73]      ___sys_sendmsg+0xee/0x170
[ 5355.344668][   T73]      __sys_sendmsg+0xcd/0x170
[ 5355.344668][   T73]      do_syscall_64+0xc6/0x1e0
[ 5355.344668][   T73] 
[ 5355.346920][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5355.346920][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5355.346920][   T73]      ipv6_find_idev+0x102/0x170
[ 5355.346920][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5355.346920][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5355.346920][   T73]      netlink_rcv_skb+0x130/0x360
[ 5355.346920][   T73]      netlink_unicast+0x449/0x710
[ 5355.346920][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5355.346920][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5355.346920][   T73]      ___sys_sendmsg+0xee/0x170
[ 5355.346920][   T73]      __sys_sendmsg+0xcd/0x170
[ 5355.346920][   T73]      do_syscall_64+0xc6/0x1e0
[ 5355.346920][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5355.346920][   T73] 
[ 5355.348639][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5355.348639][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5355.348639][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5355.348639][   T73]      ipv6_find_idev+0x102/0x170
[ 5355.348639][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5355.348639][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5355.348639][   T73]      netlink_rcv_skb+0x130/0x360
[ 5355.348639][   T73]      netlink_unicast+0x449/0x710
[ 5355.348639][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5355.348639][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5355.348639][   T73]      ___sys_sendmsg+0xee/0x170
[ 5355.348639][   T73]      __sys_sendmsg+0xcd/0x170
[ 5355.348639][   T73]      do_syscall_64+0xc6/0x1e0
[ 5355.348639][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5355.348639][   T73] 
[ 5355.350542][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5355.350861][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5355.350861][   T73]      netdev_get_by_index+0x5e/0x80
[ 5355.350861][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5355.350861][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5355.350861][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5355.350861][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5355.350861][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5355.350861][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5355.350861][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5355.350861][   T73]      addrconf_dad_begin+0x310/0x670
[ 5355.350861][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5355.350861][   T73]      process_one_work+0x84d/0x18a0
[ 5355.350861][   T73]      worker_thread+0x587/0xd30
[ 5355.350861][   T73]      kthread+0x28a/0x350
[ 5355.350861][   T73]      ret_from_fork+0x31/0x70
[ 5355.350861][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5355.350861][   T73] 
[ 5355.352993][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5355.352993][   T73]      netdev_get_by_index+0x5e/0x80
[ 5355.352993][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5355.352993][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5355.352993][   T73]      ip6_route_add+0x1c/0x140
[ 5355.352993][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5355.352993][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5355.352993][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5355.352993][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5355.352993][   T73]      netlink_rcv_skb+0x130/0x360
[ 5355.352993][   T73]      netlink_unicast+0x449/0x710
[ 5355.352993][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5355.352993][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5355.352993][   T73]      ___sys_sendmsg+0xee/0x170
[ 5355.352993][   T73]      __sys_sendmsg+0xcd/0x170
[ 5355.352993][   T73]      do_syscall_64+0xc6/0x1e0
[ 5355.352993][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5355.352993][   T73] 
[ 5355.355208][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5355.355208][   T73]      netdev_get_by_index+0x5e/0x80
[ 5355.355208][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5355.355208][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5355.355208][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5355.355208][   T73]      ipv6_add_addr+0x411/0x2000
[ 5355.355208][   T73]      inet6_addr_add+0x30e/0xa40
[ 5355.355208][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5355.355208][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5355.355208][   T73]      netlink_rcv_skb+0x130/0x360
[ 5355.355208][   T73]      netlink_unicast+0x449/0x710
[ 5355.355208][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5355.355208][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5355.355208][   T73]      ___sys_sendmsg+0xee/0x170
[ 5355.355208][   T73]      __sys_sendmsg+0xcd/0x170
[ 5355.355208][   T73]      do_syscall_64+0xc6/0x1e0
[ 5355.355208][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5355.355208][   T73] 
[ 5355.357427][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5355.357427][   T73]      netdev_get_by_index+0x5e/0x80
[ 5355.357427][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5355.357427][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5355.357427][   T73]      ip6_route_add+0x1c/0x140
[ 5355.357427][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5355.357427][   T73]      addrconf_add_dev+0xe2/0x170
[ 5355.357427][   T73]      inet6_addr_add+0x12f/0xa40
[ 5355.357427][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5355.357427][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5355.357427][   T73]      netlink_rcv_skb+0x130/0x360
[ 5355.357427][   T73]      netlink_unicast+0x449/0x710
[ 5355.357427][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5355.357427][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5355.357427][   T73]      ___sys_sendmsg+0xee/0x170
[ 5355.357427][   T73]      __sys_sendmsg+0xcd/0x170
[ 5355.357427][   T73]      do_syscall_64+0xc6/0x1e0
[ 5355.357427][   T73] 
[ 5355.359651][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5355.359651][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5355.359651][   T73]      ipv6_find_idev+0x102/0x170
[ 5355.359651][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5355.359651][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5355.359651][   T73]      netlink_rcv_skb+0x130/0x360
[ 5355.359651][   T73]      netlink_unicast+0x449/0x710
[ 5355.359651][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5355.359651][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5355.359651][   T73]      ___sys_sendmsg+0xee/0x170
[ 5355.359651][   T73]      __sys_sendmsg+0xcd/0x170
[ 5355.359651][   T73]      do_syscall_64+0xc6/0x1e0
[ 5355.359651][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5355.359651][   T73] 
[ 5355.361368][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5355.361368][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5355.361368][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5355.361368][   T73]      ipv6_find_idev+0x102/0x170
[ 5355.361368][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5355.361368][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5355.361368][   T73]      netlink_rcv_skb+0x130/0x360
[ 5355.361368][   T73]      netlink_unicast+0x449/0x710
[ 5355.361368][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5355.361368][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5355.361368][   T73]      ___sys_sendmsg+0xee/0x170
[ 5355.361368][   T73]      __sys_sendmsg+0xcd/0x170
[ 5355.361368][   T73]      do_syscall_64+0xc6/0x1e0
[ 5355.361368][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5355.361368][   T73] 
[ 5355.363226][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5355.363516][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5355.363516][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5355.363516][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5355.363516][   T73]      fib6_nh_init+0xa22/0x1580
[ 5355.363516][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5355.363516][   T73]      ip6_route_add+0x1c/0x140
[ 5355.363516][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5355.363516][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5355.363516][   T73]      netlink_rcv_skb+0x130/0x360
[ 5355.363516][   T73]      netlink_unicast+0x449/0x710
[ 5355.363516][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5355.363516][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5355.363516][   T73]      ___sys_sendmsg+0xee/0x170
[ 5355.363516][   T73]      __sys_sendmsg+0xcd/0x170
[ 5355.363516][   T73]      do_syscall_64+0xc6/0x1e0
[ 5355.363516][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5355.363516][   T73] 
[ 5355.365815][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5355.365815][   T73]      dst_init+0x84/0x4a0
[ 5355.365815][   T73]      dst_alloc+0x97/0x150
[ 5355.365815][   T73]      ip6_dst_alloc+0x23/0x90
[ 5355.365815][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5355.365815][   T73]      ip6_pol_route+0x56f/0x840
[ 5355.365815][   T73]      fib6_rule_lookup+0x456/0x630
[ 5355.365815][   T73]      ip6_route_input+0x59c/0xa50
[ 5355.365815][   T73]      ipv6_rcv+0x397/0x810
[ 5355.365815][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5355.365815][   T73]      process_backlog+0x101/0x620
[ 5355.365815][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5355.365815][   T73]      net_rx_action+0x495/0xbe0
[ 5355.365815][   T73]      __do_softirq+0x1b5/0x7f6
[ 5355.365815][   T73] 
[ 5355.367822][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5355.367822][   T73]      netdev_get_by_index+0x5e/0x80
[ 5355.367822][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5355.367822][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5355.367822][   T73]      ip6_route_add+0x1c/0x140
[ 5355.367822][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5355.367822][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5355.367822][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5355.367822][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5355.367822][   T73]      netlink_rcv_skb+0x130/0x360
[ 5355.367822][   T73]      netlink_unicast+0x449/0x710
[ 5355.367822][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5355.367822][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5355.367822][   T73]      ___sys_sendmsg+0xee/0x170
[ 5355.367822][   T73]      __sys_sendmsg+0xcd/0x170
[ 5355.367822][   T73]      do_syscall_64+0xc6/0x1e0
[ 5355.367822][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5355.367822][   T73] 
[ 5355.370308][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5355.370308][   T73]      netdev_get_by_index+0x5e/0x80
[ 5355.370308][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5355.370308][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5355.370308][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5355.370308][   T73]      ipv6_add_addr+0x411/0x2000
[ 5355.370308][   T73]      inet6_addr_add+0x30e/0xa40
[ 5355.370308][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5355.370308][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5355.370308][   T73]      netlink_rcv_skb+0x130/0x360
[ 5355.370308][   T73]      netlink_unicast+0x449/0x710
[ 5355.370308][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5355.370308][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5355.370308][   T73]      ___sys_sendmsg+0xee/0x170
[ 5355.370308][   T73]      __sys_sendmsg+0xcd/0x170
[ 5355.370308][   T73]      do_syscall_64+0xc6/0x1e0
[ 5355.370308][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5355.370308][   T73] 
[ 5355.372718][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5355.372718][   T73]      netdev_get_by_index+0x5e/0x80
[ 5355.372718][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5355.372718][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5355.372718][   T73]      ip6_route_add+0x1c/0x140
[ 5355.372718][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5355.372718][   T73]      addrconf_add_dev+0xe2/0x170
[ 5355.372718][   T73]      inet6_addr_add+0x12f/0xa40
[ 5355.372718][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5355.372718][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5355.372718][   T73]      netlink_rcv_skb+0x130/0x360
[ 5355.372718][   T73]      netlink_unicast+0x449/0x710
[ 5355.372718][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5355.372718][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5355.372718][   T73]      ___sys_sendmsg+0xee/0x170
[ 5355.372718][   T73]      __sys_sendmsg+0xcd/0x170
[ 5355.372718][   T73]      do_syscall_64+0xc6/0x1e0
[ 5355.372718][   T73] 
[ 5355.375163][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5355.375163][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5355.375163][   T73]      ipv6_find_idev+0x102/0x170
[ 5355.375163][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5355.375163][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5355.375163][   T73]      netlink_rcv_skb+0x130/0x360
[ 5355.375163][   T73]      netlink_unicast+0x449/0x710
[ 5355.375163][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5355.375163][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5355.375163][   T73]      ___sys_sendmsg+0xee/0x170
[ 5355.375163][   T73]      __sys_sendmsg+0xcd/0x170
[ 5355.375163][   T73]      do_syscall_64+0xc6/0x1e0
[ 5355.375163][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5355.375163][   T73] 
[ 5355.377099][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5355.377099][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5355.377099][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5355.377099][   T73]      ipv6_find_idev+0x102/0x170
[ 5355.377099][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5355.377099][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5355.377099][   T73]      netlink_rcv_skb+0x130/0x360
[ 5355.377099][   T73]      netlink_unicast+0x449/0x710
[ 5355.377099][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5355.377099][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5355.377099][   T73]      ___sys_sendmsg+0xee/0x170
[ 5355.377099][   T73]      __sys_sendmsg+0xcd/0x170
[ 5355.377099][   T73]      do_syscall_64+0xc6/0x1e0
[ 5355.377099][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5355.377099][   T73] 
[ 5355.380056][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5355.380364][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5355.380364][   T73]      netdev_get_by_index+0x5e/0x80
[ 5355.380364][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5355.380364][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5355.380364][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5355.380364][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5355.380364][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5355.380364][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5355.380364][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5355.380364][   T73]      addrconf_dad_begin+0x310/0x670
[ 5355.380364][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5355.380364][   T73]      process_one_work+0x84d/0x18a0
[ 5355.380364][   T73]      worker_thread+0x587/0xd30
[ 5355.380364][   T73]      kthread+0x28a/0x350
[ 5355.380364][   T73]      ret_from_fork+0x31/0x70
[ 5355.380364][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5355.380364][   T73] 
[ 5355.382501][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5355.382501][   T73]      netdev_get_by_index+0x5e/0x80
[ 5355.382501][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5355.382501][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5355.382501][   T73]      ip6_route_add+0x1c/0x140
[ 5355.382501][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5355.382501][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5355.382501][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5355.382501][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5355.382501][   T73]      netlink_rcv_skb+0x130/0x360
[ 5355.382501][   T73]      netlink_unicast+0x449/0x710
[ 5355.382501][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5355.382501][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5355.382501][   T73]      ___sys_sendmsg+0xee/0x170
[ 5355.382501][   T73]      __sys_sendmsg+0xcd/0x170
[ 5355.382501][   T73]      do_syscall_64+0xc6/0x1e0
[ 5355.382501][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5355.382501][   T73] 
[ 5355.384703][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5355.384703][   T73]      netdev_get_by_index+0x5e/0x80
[ 5355.384703][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5355.384703][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5355.384703][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5355.384703][   T73]      ipv6_add_addr+0x411/0x2000
[ 5355.384703][   T73]      inet6_addr_add+0x30e/0xa40
[ 5355.384703][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5355.384703][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5355.384703][   T73]      netlink_rcv_skb+0x130/0x360
[ 5355.384703][   T73]      netlink_unicast+0x449/0x710
[ 5355.384703][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5355.384703][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5355.384703][   T73]      ___sys_sendmsg+0xee/0x170
[ 5355.384703][   T73]      __sys_sendmsg+0xcd/0x170
[ 5355.384703][   T73]      do_syscall_64+0xc6/0x1e0
[ 5355.384703][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5355.384703][   T73] 
[ 5355.386915][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5355.386915][   T73]      netdev_get_by_index+0x5e/0x80
[ 5355.386915][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5355.386915][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5355.386915][   T73]      ip6_route_add+0x1c/0x140
[ 5355.386915][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5355.386915][   T73]      addrconf_add_dev+0xe2/0x170
[ 5355.386915][   T73]      inet6_addr_add+0x12f/0xa40
[ 5355.386915][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5355.386915][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5355.386915][   T73]      netlink_rcv_skb+0x130/0x360
[ 5355.386915][   T73]      netlink_unicast+0x449/0x710
[ 5355.386915][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5355.386915][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5355.386915][   T73]      ___sys_sendmsg+0xee/0x170
[ 5355.386915][   T73]      __sys_sendmsg+0xcd/0x170
[ 5355.386915][   T73]      do_syscall_64+0xc6/0x1e0
[ 5355.386915][   T73] 
[ 5355.389267][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5355.389267][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5355.389267][   T73]      ipv6_find_idev+0x102/0x170
[ 5355.389267][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5355.389267][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5355.389267][   T73]      netlink_rcv_skb+0x130/0x360
[ 5355.389267][   T73]      netlink_unicast+0x449/0x710
[ 5355.389267][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5355.389267][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5355.389267][   T73]      ___sys_sendmsg+0xee/0x170
[ 5355.389267][   T73]      __sys_sendmsg+0xcd/0x170
[ 5355.389267][   T73]      do_syscall_64+0xc6/0x1e0
[ 5355.389267][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5355.389267][   T73] 
[ 5355.391163][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5355.391163][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5355.391163][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5355.391163][   T73]      ipv6_find_idev+0x102/0x170
[ 5355.391163][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5355.391163][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5355.391163][   T73]      netlink_rcv_skb+0x130/0x360
[ 5355.391163][   T73]      netlink_unicast+0x449/0x710
[ 5355.391163][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5355.391163][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5355.391163][   T73]      ___sys_sendmsg+0xee/0x170
[ 5355.391163][   T73]      __sys_sendmsg+0xcd/0x170
[ 5355.391163][   T73]      do_syscall_64+0xc6/0x1e0
[ 5355.391163][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5355.391163][   T73] 
[ 5365.399695][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5365.400194][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5365.400194][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5365.400194][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5365.400194][   T73]      fib6_nh_init+0xa22/0x1580
[ 5365.400194][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5365.400194][   T73]      ip6_route_add+0x1c/0x140
[ 5365.400194][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5365.400194][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5365.400194][   T73]      netlink_rcv_skb+0x130/0x360
[ 5365.400194][   T73]      netlink_unicast+0x449/0x710
[ 5365.400194][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5365.400194][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5365.400194][   T73]      ___sys_sendmsg+0xee/0x170
[ 5365.400194][   T73]      __sys_sendmsg+0xcd/0x170
[ 5365.400194][   T73]      do_syscall_64+0xc6/0x1e0
[ 5365.400194][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5365.400194][   T73] 
[ 5365.402119][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5365.402119][   T73]      dst_init+0x84/0x4a0
[ 5365.402119][   T73]      dst_alloc+0x97/0x150
[ 5365.402119][   T73]      ip6_dst_alloc+0x23/0x90
[ 5365.402119][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5365.402119][   T73]      ip6_pol_route+0x56f/0x840
[ 5365.402119][   T73]      fib6_rule_lookup+0x456/0x630
[ 5365.402119][   T73]      ip6_route_input+0x59c/0xa50
[ 5365.402119][   T73]      ipv6_rcv+0x397/0x810
[ 5365.402119][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5365.402119][   T73]      process_backlog+0x101/0x620
[ 5365.402119][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5365.402119][   T73]      net_rx_action+0x495/0xbe0
[ 5365.402119][   T73]      __do_softirq+0x1b5/0x7f6
[ 5365.402119][   T73] 
[ 5365.403770][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5365.403770][   T73]      netdev_get_by_index+0x5e/0x80
[ 5365.403770][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5365.403770][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5365.403770][   T73]      ip6_route_add+0x1c/0x140
[ 5365.403770][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5365.403770][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5365.403770][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5365.403770][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5365.403770][   T73]      netlink_rcv_skb+0x130/0x360
[ 5365.403770][   T73]      netlink_unicast+0x449/0x710
[ 5365.403770][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5365.403770][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5365.403770][   T73]      ___sys_sendmsg+0xee/0x170
[ 5365.403770][   T73]      __sys_sendmsg+0xcd/0x170
[ 5365.403770][   T73]      do_syscall_64+0xc6/0x1e0
[ 5365.403770][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5365.403770][   T73] 
[ 5365.405793][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5365.405793][   T73]      netdev_get_by_index+0x5e/0x80
[ 5365.405793][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5365.405793][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5365.405793][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5365.405793][   T73]      ipv6_add_addr+0x411/0x2000
[ 5365.405793][   T73]      inet6_addr_add+0x30e/0xa40
[ 5365.405793][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5365.405793][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5365.405793][   T73]      netlink_rcv_skb+0x130/0x360
[ 5365.405793][   T73]      netlink_unicast+0x449/0x710
[ 5365.405793][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5365.405793][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5365.405793][   T73]      ___sys_sendmsg+0xee/0x170
[ 5365.405793][   T73]      __sys_sendmsg+0xcd/0x170
[ 5365.405793][   T73]      do_syscall_64+0xc6/0x1e0
[ 5365.405793][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5365.405793][   T73] 
[ 5365.407810][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5365.407810][   T73]      netdev_get_by_index+0x5e/0x80
[ 5365.407810][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5365.407810][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5365.407810][   T73]      ip6_route_add+0x1c/0x140
[ 5365.407810][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5365.407810][   T73]      addrconf_add_dev+0xe2/0x170
[ 5365.407810][   T73]      inet6_addr_add+0x12f/0xa40
[ 5365.407810][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5365.407810][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5365.407810][   T73]      netlink_rcv_skb+0x130/0x360
[ 5365.407810][   T73]      netlink_unicast+0x449/0x710
[ 5365.407810][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5365.407810][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5365.407810][   T73]      ___sys_sendmsg+0xee/0x170
[ 5365.407810][   T73]      __sys_sendmsg+0xcd/0x170
[ 5365.407810][   T73]      do_syscall_64+0xc6/0x1e0
[ 5365.407810][   T73] 
[ 5365.409823][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5365.409823][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5365.409823][   T73]      ipv6_find_idev+0x102/0x170
[ 5365.409823][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5365.409823][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5365.409823][   T73]      netlink_rcv_skb+0x130/0x360
[ 5365.409823][   T73]      netlink_unicast+0x449/0x710
[ 5365.409823][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5365.409823][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5365.409823][   T73]      ___sys_sendmsg+0xee/0x170
[ 5365.409823][   T73]      __sys_sendmsg+0xcd/0x170
[ 5365.409823][   T73]      do_syscall_64+0xc6/0x1e0
[ 5365.409823][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5365.409823][   T73] 
[ 5365.411375][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5365.411375][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5365.411375][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5365.411375][   T73]      ipv6_find_idev+0x102/0x170
[ 5365.411375][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5365.411375][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5365.411375][   T73]      netlink_rcv_skb+0x130/0x360
[ 5365.411375][   T73]      netlink_unicast+0x449/0x710
[ 5365.411375][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5365.411375][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5365.411375][   T73]      ___sys_sendmsg+0xee/0x170
[ 5365.411375][   T73]      __sys_sendmsg+0xcd/0x170
[ 5365.411375][   T73]      do_syscall_64+0xc6/0x1e0
[ 5365.411375][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5365.411375][   T73] 
[ 5365.413092][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5365.413381][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5365.413381][   T73]      netdev_get_by_index+0x5e/0x80
[ 5365.413381][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5365.413381][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5365.413381][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5365.413381][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5365.413381][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5365.413381][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5365.413381][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5365.413381][   T73]      addrconf_dad_begin+0x310/0x670
[ 5365.413381][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5365.413381][   T73]      process_one_work+0x84d/0x18a0
[ 5365.413381][   T73]      worker_thread+0x587/0xd30
[ 5365.413381][   T73]      kthread+0x28a/0x350
[ 5365.413381][   T73]      ret_from_fork+0x31/0x70
[ 5365.413381][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5365.413381][   T73] 
[ 5365.415306][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5365.415306][   T73]      netdev_get_by_index+0x5e/0x80
[ 5365.415306][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5365.415306][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5365.415306][   T73]      ip6_route_add+0x1c/0x140
[ 5365.415306][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5365.415306][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5365.415306][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5365.415306][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5365.415306][   T73]      netlink_rcv_skb+0x130/0x360
[ 5365.415306][   T73]      netlink_unicast+0x449/0x710
[ 5365.415306][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5365.415306][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5365.415306][   T73]      ___sys_sendmsg+0xee/0x170
[ 5365.415306][   T73]      __sys_sendmsg+0xcd/0x170
[ 5365.415306][   T73]      do_syscall_64+0xc6/0x1e0
[ 5365.415306][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5365.415306][   T73] 
[ 5365.417323][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5365.417323][   T73]      netdev_get_by_index+0x5e/0x80
[ 5365.417323][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5365.417323][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5365.417323][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5365.417323][   T73]      ipv6_add_addr+0x411/0x2000
[ 5365.417323][   T73]      inet6_addr_add+0x30e/0xa40
[ 5365.417323][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5365.417323][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5365.417323][   T73]      netlink_rcv_skb+0x130/0x360
[ 5365.417323][   T73]      netlink_unicast+0x449/0x710
[ 5365.417323][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5365.417323][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5365.417323][   T73]      ___sys_sendmsg+0xee/0x170
[ 5365.417323][   T73]      __sys_sendmsg+0xcd/0x170
[ 5365.417323][   T73]      do_syscall_64+0xc6/0x1e0
[ 5365.417323][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5365.417323][   T73] 
[ 5365.419331][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5365.419331][   T73]      netdev_get_by_index+0x5e/0x80
[ 5365.419331][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5365.419331][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5365.419331][   T73]      ip6_route_add+0x1c/0x140
[ 5365.419331][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5365.419331][   T73]      addrconf_add_dev+0xe2/0x170
[ 5365.419331][   T73]      inet6_addr_add+0x12f/0xa40
[ 5365.419331][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5365.419331][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5365.419331][   T73]      netlink_rcv_skb+0x130/0x360
[ 5365.419331][   T73]      netlink_unicast+0x449/0x710
[ 5365.419331][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5365.419331][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5365.419331][   T73]      ___sys_sendmsg+0xee/0x170
[ 5365.419331][   T73]      __sys_sendmsg+0xcd/0x170
[ 5365.419331][   T73]      do_syscall_64+0xc6/0x1e0
[ 5365.419331][   T73] 
[ 5365.421348][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5365.421348][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5365.421348][   T73]      ipv6_find_idev+0x102/0x170
[ 5365.421348][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5365.421348][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5365.421348][   T73]      netlink_rcv_skb+0x130/0x360
[ 5365.421348][   T73]      netlink_unicast+0x449/0x710
[ 5365.421348][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5365.421348][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5365.421348][   T73]      ___sys_sendmsg+0xee/0x170
[ 5365.421348][   T73]      __sys_sendmsg+0xcd/0x170
[ 5365.421348][   T73]      do_syscall_64+0xc6/0x1e0
[ 5365.421348][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5365.421348][   T73] 
[ 5365.422930][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5365.422930][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5365.422930][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5365.422930][   T73]      ipv6_find_idev+0x102/0x170
[ 5365.422930][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5365.422930][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5365.422930][   T73]      netlink_rcv_skb+0x130/0x360
[ 5365.422930][   T73]      netlink_unicast+0x449/0x710
[ 5365.422930][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5365.422930][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5365.422930][   T73]      ___sys_sendmsg+0xee/0x170
[ 5365.422930][   T73]      __sys_sendmsg+0xcd/0x170
[ 5365.422930][   T73]      do_syscall_64+0xc6/0x1e0
[ 5365.422930][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5365.422930][   T73] 
[ 5365.424653][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5365.424960][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5365.424960][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5365.424960][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5365.424960][   T73]      fib6_nh_init+0xa22/0x1580
[ 5365.424960][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5365.424960][   T73]      ip6_route_add+0x1c/0x140
[ 5365.424960][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5365.424960][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5365.424960][   T73]      netlink_rcv_skb+0x130/0x360
[ 5365.424960][   T73]      netlink_unicast+0x449/0x710
[ 5365.424960][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5365.424960][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5365.424960][   T73]      ___sys_sendmsg+0xee/0x170
[ 5365.424960][   T73]      __sys_sendmsg+0xcd/0x170
[ 5365.424960][   T73]      do_syscall_64+0xc6/0x1e0
[ 5365.424960][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5365.424960][   T73] 
[ 5365.427051][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5365.427051][   T73]      dst_init+0x84/0x4a0
[ 5365.427051][   T73]      dst_alloc+0x97/0x150
[ 5365.427051][   T73]      ip6_dst_alloc+0x23/0x90
[ 5365.427051][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5365.427051][   T73]      ip6_pol_route+0x56f/0x840
[ 5365.427051][   T73]      fib6_rule_lookup+0x456/0x630
[ 5365.427051][   T73]      ip6_route_input+0x59c/0xa50
[ 5365.427051][   T73]      ipv6_rcv+0x397/0x810
[ 5365.427051][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5365.427051][   T73]      process_backlog+0x101/0x620
[ 5365.427051][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5365.427051][   T73]      net_rx_action+0x495/0xbe0
[ 5365.427051][   T73]      __do_softirq+0x1b5/0x7f6
[ 5365.427051][   T73] 
[ 5365.428947][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5365.428947][   T73]      netdev_get_by_index+0x5e/0x80
[ 5365.428947][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5365.428947][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5365.428947][   T73]      ip6_route_add+0x1c/0x140
[ 5365.428947][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5365.428947][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5365.428947][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5365.428947][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5365.428947][   T73]      netlink_rcv_skb+0x130/0x360
[ 5365.428947][   T73]      netlink_unicast+0x449/0x710
[ 5365.428947][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5365.428947][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5365.428947][   T73]      ___sys_sendmsg+0xee/0x170
[ 5365.428947][   T73]      __sys_sendmsg+0xcd/0x170
[ 5365.428947][   T73]      do_syscall_64+0xc6/0x1e0
[ 5365.428947][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5365.428947][   T73] 
[ 5365.431233][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5365.431233][   T73]      netdev_get_by_index+0x5e/0x80
[ 5365.431233][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5365.431233][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5365.431233][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5365.431233][   T73]      ipv6_add_addr+0x411/0x2000
[ 5365.431233][   T73]      inet6_addr_add+0x30e/0xa40
[ 5365.431233][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5365.431233][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5365.431233][   T73]      netlink_rcv_skb+0x130/0x360
[ 5365.431233][   T73]      netlink_unicast+0x449/0x710
[ 5365.431233][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5365.431233][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5365.431233][   T73]      ___sys_sendmsg+0xee/0x170
[ 5365.431233][   T73]      __sys_sendmsg+0xcd/0x170
[ 5365.431233][   T73]      do_syscall_64+0xc6/0x1e0
[ 5365.431233][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5365.431233][   T73] 
[ 5365.433486][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5365.433486][   T73]      netdev_get_by_index+0x5e/0x80
[ 5365.433486][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5365.433486][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5365.433486][   T73]      ip6_route_add+0x1c/0x140
[ 5365.433486][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5365.433486][   T73]      addrconf_add_dev+0xe2/0x170
[ 5365.433486][   T73]      inet6_addr_add+0x12f/0xa40
[ 5365.433486][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5365.433486][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5365.433486][   T73]      netlink_rcv_skb+0x130/0x360
[ 5365.433486][   T73]      netlink_unicast+0x449/0x710
[ 5365.433486][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5365.433486][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5365.433486][   T73]      ___sys_sendmsg+0xee/0x170
[ 5365.433486][   T73]      __sys_sendmsg+0xcd/0x170
[ 5365.433486][   T73]      do_syscall_64+0xc6/0x1e0
[ 5365.433486][   T73] 
[ 5365.435720][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5365.435720][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5365.435720][   T73]      ipv6_find_idev+0x102/0x170
[ 5365.435720][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5365.435720][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5365.435720][   T73]      netlink_rcv_skb+0x130/0x360
[ 5365.435720][   T73]      netlink_unicast+0x449/0x710
[ 5365.435720][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5365.435720][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5365.435720][   T73]      ___sys_sendmsg+0xee/0x170
[ 5365.435720][   T73]      __sys_sendmsg+0xcd/0x170
[ 5365.435720][   T73]      do_syscall_64+0xc6/0x1e0
[ 5365.435720][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5365.435720][   T73] 
[ 5365.437527][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5365.437527][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5365.437527][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5365.437527][   T73]      ipv6_find_idev+0x102/0x170
[ 5365.437527][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5365.437527][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5365.437527][   T73]      netlink_rcv_skb+0x130/0x360
[ 5365.437527][   T73]      netlink_unicast+0x449/0x710
[ 5365.437527][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5365.437527][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5365.437527][   T73]      ___sys_sendmsg+0xee/0x170
[ 5365.437527][   T73]      __sys_sendmsg+0xcd/0x170
[ 5365.437527][   T73]      do_syscall_64+0xc6/0x1e0
[ 5365.437527][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5365.437527][   T73] 
[ 5365.439419][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5365.439714][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5365.439714][   T73]      netdev_get_by_index+0x5e/0x80
[ 5365.439714][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5365.439714][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5365.439714][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5365.439714][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5365.439714][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5365.439714][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5365.439714][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5365.439714][   T73]      addrconf_dad_begin+0x310/0x670
[ 5365.439714][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5365.439714][   T73]      process_one_work+0x84d/0x18a0
[ 5365.439714][   T73]      worker_thread+0x587/0xd30
[ 5365.439714][   T73]      kthread+0x28a/0x350
[ 5365.439714][   T73]      ret_from_fork+0x31/0x70
[ 5365.439714][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5365.439714][   T73] 
[ 5365.441901][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5365.441901][   T73]      netdev_get_by_index+0x5e/0x80
[ 5365.441901][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5365.441901][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5365.441901][   T73]      ip6_route_add+0x1c/0x140
[ 5365.441901][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5365.441901][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5365.441901][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5365.441901][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5365.441901][   T73]      netlink_rcv_skb+0x130/0x360
[ 5365.441901][   T73]      netlink_unicast+0x449/0x710
[ 5365.441901][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5365.441901][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5365.441901][   T73]      ___sys_sendmsg+0xee/0x170
[ 5365.441901][   T73]      __sys_sendmsg+0xcd/0x170
[ 5365.441901][   T73]      do_syscall_64+0xc6/0x1e0
[ 5365.441901][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5365.441901][   T73] 
[ 5365.444169][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5365.444169][   T73]      netdev_get_by_index+0x5e/0x80
[ 5365.444169][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5365.444169][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5365.444169][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5365.444169][   T73]      ipv6_add_addr+0x411/0x2000
[ 5365.444169][   T73]      inet6_addr_add+0x30e/0xa40
[ 5365.444169][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5365.444169][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5365.444169][   T73]      netlink_rcv_skb+0x130/0x360
[ 5365.444169][   T73]      netlink_unicast+0x449/0x710
[ 5365.444169][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5365.444169][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5365.444169][   T73]      ___sys_sendmsg+0xee/0x170
[ 5365.444169][   T73]      __sys_sendmsg+0xcd/0x170
[ 5365.444169][   T73]      do_syscall_64+0xc6/0x1e0
[ 5365.444169][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5365.444169][   T73] 
[ 5365.446521][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5365.446521][   T73]      netdev_get_by_index+0x5e/0x80
[ 5365.446521][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5365.446521][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5365.446521][   T73]      ip6_route_add+0x1c/0x140
[ 5365.446521][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5365.446521][   T73]      addrconf_add_dev+0xe2/0x170
[ 5365.446521][   T73]      inet6_addr_add+0x12f/0xa40
[ 5365.446521][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5365.446521][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5365.446521][   T73]      netlink_rcv_skb+0x130/0x360
[ 5365.446521][   T73]      netlink_unicast+0x449/0x710
[ 5365.446521][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5365.446521][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5365.446521][   T73]      ___sys_sendmsg+0xee/0x170
[ 5365.446521][   T73]      __sys_sendmsg+0xcd/0x170
[ 5365.446521][   T73]      do_syscall_64+0xc6/0x1e0
[ 5365.446521][   T73] 
[ 5365.448691][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5365.448691][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5365.448691][   T73]      ipv6_find_idev+0x102/0x170
[ 5365.448691][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5365.448691][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5365.448691][   T73]      netlink_rcv_skb+0x130/0x360
[ 5365.448691][   T73]      netlink_unicast+0x449/0x710
[ 5365.448691][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5365.448691][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5365.448691][   T73]      ___sys_sendmsg+0xee/0x170
[ 5365.448691][   T73]      __sys_sendmsg+0xcd/0x170
[ 5365.448691][   T73]      do_syscall_64+0xc6/0x1e0
[ 5365.448691][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5365.448691][   T73] 
[ 5365.450423][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5365.450423][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5365.450423][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5365.450423][   T73]      ipv6_find_idev+0x102/0x170
[ 5365.450423][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5365.450423][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5365.450423][   T73]      netlink_rcv_skb+0x130/0x360
[ 5365.450423][   T73]      netlink_unicast+0x449/0x710
[ 5365.450423][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5365.450423][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5365.450423][   T73]      ___sys_sendmsg+0xee/0x170
[ 5365.450423][   T73]      __sys_sendmsg+0xcd/0x170
[ 5365.450423][   T73]      do_syscall_64+0xc6/0x1e0
[ 5365.450423][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5365.450423][   T73] 
[ 5375.687698][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5375.688200][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5375.688200][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5375.688200][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5375.688200][   T73]      fib6_nh_init+0xa22/0x1580
[ 5375.688200][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5375.688200][   T73]      ip6_route_add+0x1c/0x140
[ 5375.688200][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5375.688200][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5375.688200][   T73]      netlink_rcv_skb+0x130/0x360
[ 5375.688200][   T73]      netlink_unicast+0x449/0x710
[ 5375.688200][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5375.688200][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5375.688200][   T73]      ___sys_sendmsg+0xee/0x170
[ 5375.688200][   T73]      __sys_sendmsg+0xcd/0x170
[ 5375.688200][   T73]      do_syscall_64+0xc6/0x1e0
[ 5375.688200][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5375.688200][   T73] 
[ 5375.690322][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5375.690322][   T73]      dst_init+0x84/0x4a0
[ 5375.690322][   T73]      dst_alloc+0x97/0x150
[ 5375.690322][   T73]      ip6_dst_alloc+0x23/0x90
[ 5375.690322][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5375.690322][   T73]      ip6_pol_route+0x56f/0x840
[ 5375.690322][   T73]      fib6_rule_lookup+0x456/0x630
[ 5375.690322][   T73]      ip6_route_input+0x59c/0xa50
[ 5375.690322][   T73]      ipv6_rcv+0x397/0x810
[ 5375.690322][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5375.690322][   T73]      process_backlog+0x101/0x620
[ 5375.690322][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5375.690322][   T73]      net_rx_action+0x495/0xbe0
[ 5375.690322][   T73]      __do_softirq+0x1b5/0x7f6
[ 5375.690322][   T73] 
[ 5375.692152][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5375.692152][   T73]      netdev_get_by_index+0x5e/0x80
[ 5375.692152][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5375.692152][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5375.692152][   T73]      ip6_route_add+0x1c/0x140
[ 5375.692152][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5375.692152][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5375.692152][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5375.692152][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5375.692152][   T73]      netlink_rcv_skb+0x130/0x360
[ 5375.692152][   T73]      netlink_unicast+0x449/0x710
[ 5375.692152][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5375.692152][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5375.692152][   T73]      ___sys_sendmsg+0xee/0x170
[ 5375.692152][   T73]      __sys_sendmsg+0xcd/0x170
[ 5375.692152][   T73]      do_syscall_64+0xc6/0x1e0
[ 5375.692152][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5375.692152][   T73] 
[ 5375.694366][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5375.694366][   T73]      netdev_get_by_index+0x5e/0x80
[ 5375.694366][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5375.694366][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5375.694366][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5375.694366][   T73]      ipv6_add_addr+0x411/0x2000
[ 5375.694366][   T73]      inet6_addr_add+0x30e/0xa40
[ 5375.694366][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5375.694366][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5375.694366][   T73]      netlink_rcv_skb+0x130/0x360
[ 5375.694366][   T73]      netlink_unicast+0x449/0x710
[ 5375.694366][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5375.694366][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5375.694366][   T73]      ___sys_sendmsg+0xee/0x170
[ 5375.694366][   T73]      __sys_sendmsg+0xcd/0x170
[ 5375.694366][   T73]      do_syscall_64+0xc6/0x1e0
[ 5375.694366][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5375.694366][   T73] 
[ 5375.696587][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5375.696587][   T73]      netdev_get_by_index+0x5e/0x80
[ 5375.696587][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5375.696587][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5375.696587][   T73]      ip6_route_add+0x1c/0x140
[ 5375.696587][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5375.696587][   T73]      addrconf_add_dev+0xe2/0x170
[ 5375.696587][   T73]      inet6_addr_add+0x12f/0xa40
[ 5375.696587][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5375.696587][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5375.696587][   T73]      netlink_rcv_skb+0x130/0x360
[ 5375.696587][   T73]      netlink_unicast+0x449/0x710
[ 5375.696587][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5375.696587][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5375.696587][   T73]      ___sys_sendmsg+0xee/0x170
[ 5375.696587][   T73]      __sys_sendmsg+0xcd/0x170
[ 5375.696587][   T73]      do_syscall_64+0xc6/0x1e0
[ 5375.696587][   T73] 
[ 5375.698792][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5375.698792][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5375.698792][   T73]      ipv6_find_idev+0x102/0x170
[ 5375.698792][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5375.698792][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5375.698792][   T73]      netlink_rcv_skb+0x130/0x360
[ 5375.698792][   T73]      netlink_unicast+0x449/0x710
[ 5375.698792][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5375.698792][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5375.698792][   T73]      ___sys_sendmsg+0xee/0x170
[ 5375.698792][   T73]      __sys_sendmsg+0xcd/0x170
[ 5375.698792][   T73]      do_syscall_64+0xc6/0x1e0
[ 5375.698792][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5375.698792][   T73] 
[ 5375.700530][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5375.700530][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5375.700530][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5375.700530][   T73]      ipv6_find_idev+0x102/0x170
[ 5375.700530][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5375.700530][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5375.700530][   T73]      netlink_rcv_skb+0x130/0x360
[ 5375.700530][   T73]      netlink_unicast+0x449/0x710
[ 5375.700530][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5375.700530][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5375.700530][   T73]      ___sys_sendmsg+0xee/0x170
[ 5375.700530][   T73]      __sys_sendmsg+0xcd/0x170
[ 5375.700530][   T73]      do_syscall_64+0xc6/0x1e0
[ 5375.700530][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5375.700530][   T73] 
[ 5375.702413][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5375.702751][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5375.702751][   T73]      netdev_get_by_index+0x5e/0x80
[ 5375.702751][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5375.702751][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5375.702751][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5375.702751][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5375.702751][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5375.702751][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5375.702751][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5375.702751][   T73]      addrconf_dad_begin+0x310/0x670
[ 5375.702751][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5375.702751][   T73]      process_one_work+0x84d/0x18a0
[ 5375.702751][   T73]      worker_thread+0x587/0xd30
[ 5375.702751][   T73]      kthread+0x28a/0x350
[ 5375.702751][   T73]      ret_from_fork+0x31/0x70
[ 5375.702751][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5375.702751][   T73] 
[ 5375.704903][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5375.704903][   T73]      netdev_get_by_index+0x5e/0x80
[ 5375.704903][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5375.704903][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5375.704903][   T73]      ip6_route_add+0x1c/0x140
[ 5375.704903][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5375.704903][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5375.704903][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5375.704903][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5375.704903][   T73]      netlink_rcv_skb+0x130/0x360
[ 5375.704903][   T73]      netlink_unicast+0x449/0x710
[ 5375.704903][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5375.704903][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5375.704903][   T73]      ___sys_sendmsg+0xee/0x170
[ 5375.704903][   T73]      __sys_sendmsg+0xcd/0x170
[ 5375.704903][   T73]      do_syscall_64+0xc6/0x1e0
[ 5375.704903][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5375.704903][   T73] 
[ 5375.707152][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5375.707152][   T73]      netdev_get_by_index+0x5e/0x80
[ 5375.707152][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5375.707152][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5375.707152][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5375.707152][   T73]      ipv6_add_addr+0x411/0x2000
[ 5375.707152][   T73]      inet6_addr_add+0x30e/0xa40
[ 5375.707152][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5375.707152][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5375.707152][   T73]      netlink_rcv_skb+0x130/0x360
[ 5375.707152][   T73]      netlink_unicast+0x449/0x710
[ 5375.707152][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5375.707152][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5375.707152][   T73]      ___sys_sendmsg+0xee/0x170
[ 5375.707152][   T73]      __sys_sendmsg+0xcd/0x170
[ 5375.707152][   T73]      do_syscall_64+0xc6/0x1e0
[ 5375.707152][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5375.707152][   T73] 
[ 5375.709410][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5375.709410][   T73]      netdev_get_by_index+0x5e/0x80
[ 5375.709410][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5375.709410][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5375.709410][   T73]      ip6_route_add+0x1c/0x140
[ 5375.709410][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5375.709410][   T73]      addrconf_add_dev+0xe2/0x170
[ 5375.709410][   T73]      inet6_addr_add+0x12f/0xa40
[ 5375.709410][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5375.709410][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5375.709410][   T73]      netlink_rcv_skb+0x130/0x360
[ 5375.709410][   T73]      netlink_unicast+0x449/0x710
[ 5375.709410][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5375.709410][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5375.709410][   T73]      ___sys_sendmsg+0xee/0x170
[ 5375.709410][   T73]      __sys_sendmsg+0xcd/0x170
[ 5375.709410][   T73]      do_syscall_64+0xc6/0x1e0
[ 5375.709410][   T73] 
[ 5375.711596][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5375.711596][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5375.711596][   T73]      ipv6_find_idev+0x102/0x170
[ 5375.711596][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5375.711596][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5375.711596][   T73]      netlink_rcv_skb+0x130/0x360
[ 5375.711596][   T73]      netlink_unicast+0x449/0x710
[ 5375.711596][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5375.711596][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5375.711596][   T73]      ___sys_sendmsg+0xee/0x170
[ 5375.711596][   T73]      __sys_sendmsg+0xcd/0x170
[ 5375.711596][   T73]      do_syscall_64+0xc6/0x1e0
[ 5375.711596][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5375.711596][   T73] 
[ 5375.713313][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5375.713313][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5375.713313][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5375.713313][   T73]      ipv6_find_idev+0x102/0x170
[ 5375.713313][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5375.713313][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5375.713313][   T73]      netlink_rcv_skb+0x130/0x360
[ 5375.713313][   T73]      netlink_unicast+0x449/0x710
[ 5375.713313][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5375.713313][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5375.713313][   T73]      ___sys_sendmsg+0xee/0x170
[ 5375.713313][   T73]      __sys_sendmsg+0xcd/0x170
[ 5375.713313][   T73]      do_syscall_64+0xc6/0x1e0
[ 5375.713313][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5375.713313][   T73] 
[ 5375.715183][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5375.715482][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5375.715482][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5375.715482][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5375.715482][   T73]      fib6_nh_init+0xa22/0x1580
[ 5375.715482][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5375.715482][   T73]      ip6_route_add+0x1c/0x140
[ 5375.715482][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5375.715482][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5375.715482][   T73]      netlink_rcv_skb+0x130/0x360
[ 5375.715482][   T73]      netlink_unicast+0x449/0x710
[ 5375.715482][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5375.715482][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5375.715482][   T73]      ___sys_sendmsg+0xee/0x170
[ 5375.715482][   T73]      __sys_sendmsg+0xcd/0x170
[ 5375.715482][   T73]      do_syscall_64+0xc6/0x1e0
[ 5375.715482][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5375.715482][   T73] 
[ 5375.717767][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5375.717767][   T73]      dst_init+0x84/0x4a0
[ 5375.717767][   T73]      dst_alloc+0x97/0x150
[ 5375.717767][   T73]      ip6_dst_alloc+0x23/0x90
[ 5375.717767][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5375.717767][   T73]      ip6_pol_route+0x56f/0x840
[ 5375.717767][   T73]      fib6_rule_lookup+0x456/0x630
[ 5375.717767][   T73]      ip6_route_input+0x59c/0xa50
[ 5375.717767][   T73]      ipv6_rcv+0x397/0x810
[ 5375.717767][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5375.717767][   T73]      process_backlog+0x101/0x620
[ 5375.717767][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5375.717767][   T73]      net_rx_action+0x495/0xbe0
[ 5375.717767][   T73]      __do_softirq+0x1b5/0x7f6
[ 5375.717767][   T73] 
[ 5375.719836][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5375.719836][   T73]      netdev_get_by_index+0x5e/0x80
[ 5375.719836][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5375.719836][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5375.719836][   T73]      ip6_route_add+0x1c/0x140
[ 5375.719836][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5375.719836][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5375.719836][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5375.719836][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5375.719836][   T73]      netlink_rcv_skb+0x130/0x360
[ 5375.719836][   T73]      netlink_unicast+0x449/0x710
[ 5375.719836][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5375.719836][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5375.719836][   T73]      ___sys_sendmsg+0xee/0x170
[ 5375.719836][   T73]      __sys_sendmsg+0xcd/0x170
[ 5375.719836][   T73]      do_syscall_64+0xc6/0x1e0
[ 5375.719836][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5375.719836][   T73] 
[ 5375.722305][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5375.722305][   T73]      netdev_get_by_index+0x5e/0x80
[ 5375.722305][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5375.722305][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5375.722305][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5375.722305][   T73]      ipv6_add_addr+0x411/0x2000
[ 5375.722305][   T73]      inet6_addr_add+0x30e/0xa40
[ 5375.722305][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5375.722305][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5375.722305][   T73]      netlink_rcv_skb+0x130/0x360
[ 5375.722305][   T73]      netlink_unicast+0x449/0x710
[ 5375.722305][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5375.722305][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5375.722305][   T73]      ___sys_sendmsg+0xee/0x170
[ 5375.722305][   T73]      __sys_sendmsg+0xcd/0x170
[ 5375.722305][   T73]      do_syscall_64+0xc6/0x1e0
[ 5375.722305][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5375.722305][   T73] 
[ 5375.724707][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5375.724707][   T73]      netdev_get_by_index+0x5e/0x80
[ 5375.724707][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5375.724707][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5375.724707][   T73]      ip6_route_add+0x1c/0x140
[ 5375.724707][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5375.724707][   T73]      addrconf_add_dev+0xe2/0x170
[ 5375.724707][   T73]      inet6_addr_add+0x12f/0xa40
[ 5375.724707][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5375.724707][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5375.724707][   T73]      netlink_rcv_skb+0x130/0x360
[ 5375.724707][   T73]      netlink_unicast+0x449/0x710
[ 5375.724707][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5375.724707][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5375.724707][   T73]      ___sys_sendmsg+0xee/0x170
[ 5375.724707][   T73]      __sys_sendmsg+0xcd/0x170
[ 5375.724707][   T73]      do_syscall_64+0xc6/0x1e0
[ 5375.724707][   T73] 
[ 5375.727142][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5375.727142][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5375.727142][   T73]      ipv6_find_idev+0x102/0x170
[ 5375.727142][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5375.727142][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5375.727142][   T73]      netlink_rcv_skb+0x130/0x360
[ 5375.727142][   T73]      netlink_unicast+0x449/0x710
[ 5375.727142][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5375.727142][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5375.727142][   T73]      ___sys_sendmsg+0xee/0x170
[ 5375.727142][   T73]      __sys_sendmsg+0xcd/0x170
[ 5375.727142][   T73]      do_syscall_64+0xc6/0x1e0
[ 5375.727142][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5375.727142][   T73] 
[ 5375.729121][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5375.729121][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5375.729121][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5375.729121][   T73]      ipv6_find_idev+0x102/0x170
[ 5375.729121][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5375.729121][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5375.729121][   T73]      netlink_rcv_skb+0x130/0x360
[ 5375.729121][   T73]      netlink_unicast+0x449/0x710
[ 5375.729121][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5375.729121][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5375.729121][   T73]      ___sys_sendmsg+0xee/0x170
[ 5375.729121][   T73]      __sys_sendmsg+0xcd/0x170
[ 5375.729121][   T73]      do_syscall_64+0xc6/0x1e0
[ 5375.729121][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5375.729121][   T73] 
[ 5375.731199][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5375.731570][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5375.731570][   T73]      netdev_get_by_index+0x5e/0x80
[ 5375.731570][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5375.731570][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5375.731570][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5375.731570][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5375.731570][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5375.731570][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5375.731570][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5375.731570][   T73]      addrconf_dad_begin+0x310/0x670
[ 5375.731570][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5375.731570][   T73]      process_one_work+0x84d/0x18a0
[ 5375.731570][   T73]      worker_thread+0x587/0xd30
[ 5375.731570][   T73]      kthread+0x28a/0x350
[ 5375.731570][   T73]      ret_from_fork+0x31/0x70
[ 5375.731570][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5375.731570][   T73] 
[ 5375.733821][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5375.733821][   T73]      netdev_get_by_index+0x5e/0x80
[ 5375.733821][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5375.733821][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5375.733821][   T73]      ip6_route_add+0x1c/0x140
[ 5375.733821][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5375.733821][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5375.733821][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5375.733821][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5375.733821][   T73]      netlink_rcv_skb+0x130/0x360
[ 5375.733821][   T73]      netlink_unicast+0x449/0x710
[ 5375.733821][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5375.733821][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5375.733821][   T73]      ___sys_sendmsg+0xee/0x170
[ 5375.733821][   T73]      __sys_sendmsg+0xcd/0x170
[ 5375.733821][   T73]      do_syscall_64+0xc6/0x1e0
[ 5375.733821][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5375.733821][   T73] 
[ 5375.736275][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5375.736275][   T73]      netdev_get_by_index+0x5e/0x80
[ 5375.736275][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5375.736275][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5375.736275][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5375.736275][   T73]      ipv6_add_addr+0x411/0x2000
[ 5375.736275][   T73]      inet6_addr_add+0x30e/0xa40
[ 5375.736275][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5375.736275][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5375.736275][   T73]      netlink_rcv_skb+0x130/0x360
[ 5375.736275][   T73]      netlink_unicast+0x449/0x710
[ 5375.736275][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5375.736275][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5375.736275][   T73]      ___sys_sendmsg+0xee/0x170
[ 5375.736275][   T73]      __sys_sendmsg+0xcd/0x170
[ 5375.736275][   T73]      do_syscall_64+0xc6/0x1e0
[ 5375.736275][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5375.736275][   T73] 
[ 5375.738739][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5375.738739][   T73]      netdev_get_by_index+0x5e/0x80
[ 5375.738739][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5375.738739][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5375.738739][   T73]      ip6_route_add+0x1c/0x140
[ 5375.738739][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5375.738739][   T73]      addrconf_add_dev+0xe2/0x170
[ 5375.738739][   T73]      inet6_addr_add+0x12f/0xa40
[ 5375.738739][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5375.738739][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5375.738739][   T73]      netlink_rcv_skb+0x130/0x360
[ 5375.738739][   T73]      netlink_unicast+0x449/0x710
[ 5375.738739][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5375.738739][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5375.738739][   T73]      ___sys_sendmsg+0xee/0x170
[ 5375.738739][   T73]      __sys_sendmsg+0xcd/0x170
[ 5375.738739][   T73]      do_syscall_64+0xc6/0x1e0
[ 5375.738739][   T73] 
[ 5375.741237][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5375.741237][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5375.741237][   T73]      ipv6_find_idev+0x102/0x170
[ 5375.741237][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5375.741237][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5375.741237][   T73]      netlink_rcv_skb+0x130/0x360
[ 5375.741237][   T73]      netlink_unicast+0x449/0x710
[ 5375.741237][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5375.741237][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5375.741237][   T73]      ___sys_sendmsg+0xee/0x170
[ 5375.741237][   T73]      __sys_sendmsg+0xcd/0x170
[ 5375.741237][   T73]      do_syscall_64+0xc6/0x1e0
[ 5375.741237][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5375.741237][   T73] 
[ 5375.743131][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5375.743131][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5375.743131][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5375.743131][   T73]      ipv6_find_idev+0x102/0x170
[ 5375.743131][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5375.743131][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5375.743131][   T73]      netlink_rcv_skb+0x130/0x360
[ 5375.743131][   T73]      netlink_unicast+0x449/0x710
[ 5375.743131][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5375.743131][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5375.743131][   T73]      ___sys_sendmsg+0xee/0x170
[ 5375.743131][   T73]      __sys_sendmsg+0xcd/0x170
[ 5375.743131][   T73]      do_syscall_64+0xc6/0x1e0
[ 5375.743131][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5375.743131][   T73] 
[ 5385.983845][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5385.984352][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5385.984352][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5385.984352][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5385.984352][   T73]      fib6_nh_init+0xa22/0x1580
[ 5385.984352][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5385.984352][   T73]      ip6_route_add+0x1c/0x140
[ 5385.984352][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5385.984352][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5385.984352][   T73]      netlink_rcv_skb+0x130/0x360
[ 5385.984352][   T73]      netlink_unicast+0x449/0x710
[ 5385.984352][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5385.984352][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5385.984352][   T73]      ___sys_sendmsg+0xee/0x170
[ 5385.984352][   T73]      __sys_sendmsg+0xcd/0x170
[ 5385.984352][   T73]      do_syscall_64+0xc6/0x1e0
[ 5385.984352][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5385.984352][   T73] 
[ 5385.986475][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5385.986475][   T73]      dst_init+0x84/0x4a0
[ 5385.986475][   T73]      dst_alloc+0x97/0x150
[ 5385.986475][   T73]      ip6_dst_alloc+0x23/0x90
[ 5385.986475][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5385.986475][   T73]      ip6_pol_route+0x56f/0x840
[ 5385.986475][   T73]      fib6_rule_lookup+0x456/0x630
[ 5385.986475][   T73]      ip6_route_input+0x59c/0xa50
[ 5385.986475][   T73]      ipv6_rcv+0x397/0x810
[ 5385.986475][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5385.986475][   T73]      process_backlog+0x101/0x620
[ 5385.986475][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5385.986475][   T73]      net_rx_action+0x495/0xbe0
[ 5385.986475][   T73]      __do_softirq+0x1b5/0x7f6
[ 5385.986475][   T73] 
[ 5385.988306][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5385.988306][   T73]      netdev_get_by_index+0x5e/0x80
[ 5385.988306][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5385.988306][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5385.988306][   T73]      ip6_route_add+0x1c/0x140
[ 5385.988306][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5385.988306][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5385.988306][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5385.988306][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5385.988306][   T73]      netlink_rcv_skb+0x130/0x360
[ 5385.988306][   T73]      netlink_unicast+0x449/0x710
[ 5385.988306][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5385.988306][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5385.988306][   T73]      ___sys_sendmsg+0xee/0x170
[ 5385.988306][   T73]      __sys_sendmsg+0xcd/0x170
[ 5385.988306][   T73]      do_syscall_64+0xc6/0x1e0
[ 5385.988306][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5385.988306][   T73] 
[ 5385.990546][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5385.990546][   T73]      netdev_get_by_index+0x5e/0x80
[ 5385.990546][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5385.990546][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5385.990546][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5385.990546][   T73]      ipv6_add_addr+0x411/0x2000
[ 5385.990546][   T73]      inet6_addr_add+0x30e/0xa40
[ 5385.990546][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5385.990546][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5385.990546][   T73]      netlink_rcv_skb+0x130/0x360
[ 5385.990546][   T73]      netlink_unicast+0x449/0x710
[ 5385.990546][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5385.990546][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5385.990546][   T73]      ___sys_sendmsg+0xee/0x170
[ 5385.990546][   T73]      __sys_sendmsg+0xcd/0x170
[ 5385.990546][   T73]      do_syscall_64+0xc6/0x1e0
[ 5385.990546][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5385.990546][   T73] 
[ 5385.992774][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5385.992774][   T73]      netdev_get_by_index+0x5e/0x80
[ 5385.992774][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5385.992774][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5385.992774][   T73]      ip6_route_add+0x1c/0x140
[ 5385.992774][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5385.992774][   T73]      addrconf_add_dev+0xe2/0x170
[ 5385.992774][   T73]      inet6_addr_add+0x12f/0xa40
[ 5385.992774][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5385.992774][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5385.992774][   T73]      netlink_rcv_skb+0x130/0x360
[ 5385.992774][   T73]      netlink_unicast+0x449/0x710
[ 5385.992774][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5385.992774][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5385.992774][   T73]      ___sys_sendmsg+0xee/0x170
[ 5385.992774][   T73]      __sys_sendmsg+0xcd/0x170
[ 5385.992774][   T73]      do_syscall_64+0xc6/0x1e0
[ 5385.992774][   T73] 
[ 5385.994972][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5385.994972][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5385.994972][   T73]      ipv6_find_idev+0x102/0x170
[ 5385.994972][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5385.994972][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5385.994972][   T73]      netlink_rcv_skb+0x130/0x360
[ 5385.994972][   T73]      netlink_unicast+0x449/0x710
[ 5385.994972][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5385.994972][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5385.994972][   T73]      ___sys_sendmsg+0xee/0x170
[ 5385.994972][   T73]      __sys_sendmsg+0xcd/0x170
[ 5385.994972][   T73]      do_syscall_64+0xc6/0x1e0
[ 5385.994972][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5385.994972][   T73] 
[ 5385.996686][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5385.996686][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5385.996686][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5385.996686][   T73]      ipv6_find_idev+0x102/0x170
[ 5385.996686][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5385.996686][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5385.996686][   T73]      netlink_rcv_skb+0x130/0x360
[ 5385.996686][   T73]      netlink_unicast+0x449/0x710
[ 5385.996686][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5385.996686][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5385.996686][   T73]      ___sys_sendmsg+0xee/0x170
[ 5385.996686][   T73]      __sys_sendmsg+0xcd/0x170
[ 5385.996686][   T73]      do_syscall_64+0xc6/0x1e0
[ 5385.996686][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5385.996686][   T73] 
[ 5385.998580][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5385.998906][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5385.998906][   T73]      netdev_get_by_index+0x5e/0x80
[ 5385.998906][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5385.998906][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5385.998906][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5385.998906][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5385.998906][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5385.998906][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5385.998906][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5385.998906][   T73]      addrconf_dad_begin+0x310/0x670
[ 5385.998906][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5385.998906][   T73]      process_one_work+0x84d/0x18a0
[ 5385.998906][   T73]      worker_thread+0x587/0xd30
[ 5385.998906][   T73]      kthread+0x28a/0x350
[ 5385.998906][   T73]      ret_from_fork+0x31/0x70
[ 5385.998906][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5385.998906][   T73] 
[ 5386.001037][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5386.001037][   T73]      netdev_get_by_index+0x5e/0x80
[ 5386.001037][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5386.001037][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5386.001037][   T73]      ip6_route_add+0x1c/0x140
[ 5386.001037][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5386.001037][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5386.001037][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5386.001037][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5386.001037][   T73]      netlink_rcv_skb+0x130/0x360
[ 5386.001037][   T73]      netlink_unicast+0x449/0x710
[ 5386.001037][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5386.001037][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5386.001037][   T73]      ___sys_sendmsg+0xee/0x170
[ 5386.001037][   T73]      __sys_sendmsg+0xcd/0x170
[ 5386.001037][   T73]      do_syscall_64+0xc6/0x1e0
[ 5386.001037][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5386.001037][   T73] 
[ 5386.003252][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5386.003252][   T73]      netdev_get_by_index+0x5e/0x80
[ 5386.003252][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5386.003252][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5386.003252][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5386.003252][   T73]      ipv6_add_addr+0x411/0x2000
[ 5386.003252][   T73]      inet6_addr_add+0x30e/0xa40
[ 5386.003252][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5386.003252][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5386.003252][   T73]      netlink_rcv_skb+0x130/0x360
[ 5386.003252][   T73]      netlink_unicast+0x449/0x710
[ 5386.003252][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5386.003252][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5386.003252][   T73]      ___sys_sendmsg+0xee/0x170
[ 5386.003252][   T73]      __sys_sendmsg+0xcd/0x170
[ 5386.003252][   T73]      do_syscall_64+0xc6/0x1e0
[ 5386.003252][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5386.003252][   T73] 
[ 5386.005490][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5386.005490][   T73]      netdev_get_by_index+0x5e/0x80
[ 5386.005490][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5386.005490][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5386.005490][   T73]      ip6_route_add+0x1c/0x140
[ 5386.005490][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5386.005490][   T73]      addrconf_add_dev+0xe2/0x170
[ 5386.005490][   T73]      inet6_addr_add+0x12f/0xa40
[ 5386.005490][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5386.005490][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5386.005490][   T73]      netlink_rcv_skb+0x130/0x360
[ 5386.005490][   T73]      netlink_unicast+0x449/0x710
[ 5386.005490][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5386.005490][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5386.005490][   T73]      ___sys_sendmsg+0xee/0x170
[ 5386.005490][   T73]      __sys_sendmsg+0xcd/0x170
[ 5386.005490][   T73]      do_syscall_64+0xc6/0x1e0
[ 5386.005490][   T73] 
[ 5386.007678][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5386.007678][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5386.007678][   T73]      ipv6_find_idev+0x102/0x170
[ 5386.007678][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5386.007678][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5386.007678][   T73]      netlink_rcv_skb+0x130/0x360
[ 5386.007678][   T73]      netlink_unicast+0x449/0x710
[ 5386.007678][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5386.007678][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5386.007678][   T73]      ___sys_sendmsg+0xee/0x170
[ 5386.007678][   T73]      __sys_sendmsg+0xcd/0x170
[ 5386.007678][   T73]      do_syscall_64+0xc6/0x1e0
[ 5386.007678][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5386.007678][   T73] 
[ 5386.009399][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5386.009399][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5386.009399][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5386.009399][   T73]      ipv6_find_idev+0x102/0x170
[ 5386.009399][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5386.009399][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5386.009399][   T73]      netlink_rcv_skb+0x130/0x360
[ 5386.009399][   T73]      netlink_unicast+0x449/0x710
[ 5386.009399][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5386.009399][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5386.009399][   T73]      ___sys_sendmsg+0xee/0x170
[ 5386.009399][   T73]      __sys_sendmsg+0xcd/0x170
[ 5386.009399][   T73]      do_syscall_64+0xc6/0x1e0
[ 5386.009399][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5386.009399][   T73] 
[ 5386.011289][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5386.011582][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5386.011582][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5386.011582][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5386.011582][   T73]      fib6_nh_init+0xa22/0x1580
[ 5386.011582][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5386.011582][   T73]      ip6_route_add+0x1c/0x140
[ 5386.011582][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5386.011582][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5386.011582][   T73]      netlink_rcv_skb+0x130/0x360
[ 5386.011582][   T73]      netlink_unicast+0x449/0x710
[ 5386.011582][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5386.011582][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5386.011582][   T73]      ___sys_sendmsg+0xee/0x170
[ 5386.011582][   T73]      __sys_sendmsg+0xcd/0x170
[ 5386.011582][   T73]      do_syscall_64+0xc6/0x1e0
[ 5386.011582][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5386.011582][   T73] 
[ 5386.013835][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5386.013835][   T73]      dst_init+0x84/0x4a0
[ 5386.013835][   T73]      dst_alloc+0x97/0x150
[ 5386.013835][   T73]      ip6_dst_alloc+0x23/0x90
[ 5386.013835][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5386.013835][   T73]      ip6_pol_route+0x56f/0x840
[ 5386.013835][   T73]      fib6_rule_lookup+0x456/0x630
[ 5386.013835][   T73]      ip6_route_input+0x59c/0xa50
[ 5386.013835][   T73]      ipv6_rcv+0x397/0x810
[ 5386.013835][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5386.013835][   T73]      process_backlog+0x101/0x620
[ 5386.013835][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5386.013835][   T73]      net_rx_action+0x495/0xbe0
[ 5386.013835][   T73]      __do_softirq+0x1b5/0x7f6
[ 5386.013835][   T73] 
[ 5386.015840][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5386.015840][   T73]      netdev_get_by_index+0x5e/0x80
[ 5386.015840][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5386.015840][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5386.015840][   T73]      ip6_route_add+0x1c/0x140
[ 5386.015840][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5386.015840][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5386.015840][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5386.015840][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5386.015840][   T73]      netlink_rcv_skb+0x130/0x360
[ 5386.015840][   T73]      netlink_unicast+0x449/0x710
[ 5386.015840][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5386.015840][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5386.015840][   T73]      ___sys_sendmsg+0xee/0x170
[ 5386.015840][   T73]      __sys_sendmsg+0xcd/0x170
[ 5386.015840][   T73]      do_syscall_64+0xc6/0x1e0
[ 5386.015840][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5386.015840][   T73] 
[ 5386.018325][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5386.018325][   T73]      netdev_get_by_index+0x5e/0x80
[ 5386.018325][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5386.018325][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5386.018325][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5386.018325][   T73]      ipv6_add_addr+0x411/0x2000
[ 5386.018325][   T73]      inet6_addr_add+0x30e/0xa40
[ 5386.018325][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5386.018325][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5386.018325][   T73]      netlink_rcv_skb+0x130/0x360
[ 5386.018325][   T73]      netlink_unicast+0x449/0x710
[ 5386.018325][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5386.018325][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5386.018325][   T73]      ___sys_sendmsg+0xee/0x170
[ 5386.018325][   T73]      __sys_sendmsg+0xcd/0x170
[ 5386.018325][   T73]      do_syscall_64+0xc6/0x1e0
[ 5386.018325][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5386.018325][   T73] 
[ 5386.020793][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5386.020793][   T73]      netdev_get_by_index+0x5e/0x80
[ 5386.020793][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5386.020793][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5386.020793][   T73]      ip6_route_add+0x1c/0x140
[ 5386.020793][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5386.020793][   T73]      addrconf_add_dev+0xe2/0x170
[ 5386.020793][   T73]      inet6_addr_add+0x12f/0xa40
[ 5386.020793][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5386.020793][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5386.020793][   T73]      netlink_rcv_skb+0x130/0x360
[ 5386.020793][   T73]      netlink_unicast+0x449/0x710
[ 5386.020793][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5386.020793][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5386.020793][   T73]      ___sys_sendmsg+0xee/0x170
[ 5386.020793][   T73]      __sys_sendmsg+0xcd/0x170
[ 5386.020793][   T73]      do_syscall_64+0xc6/0x1e0
[ 5386.020793][   T73] 
[ 5386.023235][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5386.023235][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5386.023235][   T73]      ipv6_find_idev+0x102/0x170
[ 5386.023235][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5386.023235][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5386.023235][   T73]      netlink_rcv_skb+0x130/0x360
[ 5386.023235][   T73]      netlink_unicast+0x449/0x710
[ 5386.023235][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5386.023235][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5386.023235][   T73]      ___sys_sendmsg+0xee/0x170
[ 5386.023235][   T73]      __sys_sendmsg+0xcd/0x170
[ 5386.023235][   T73]      do_syscall_64+0xc6/0x1e0
[ 5386.023235][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5386.023235][   T73] 
[ 5386.025122][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5386.025122][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5386.025122][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5386.025122][   T73]      ipv6_find_idev+0x102/0x170
[ 5386.025122][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5386.025122][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5386.025122][   T73]      netlink_rcv_skb+0x130/0x360
[ 5386.025122][   T73]      netlink_unicast+0x449/0x710
[ 5386.025122][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5386.025122][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5386.025122][   T73]      ___sys_sendmsg+0xee/0x170
[ 5386.025122][   T73]      __sys_sendmsg+0xcd/0x170
[ 5386.025122][   T73]      do_syscall_64+0xc6/0x1e0
[ 5386.025122][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5386.025122][   T73] 
[ 5386.027194][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5386.027572][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5386.027572][   T73]      netdev_get_by_index+0x5e/0x80
[ 5386.027572][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5386.027572][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5386.027572][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5386.027572][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5386.027572][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5386.027572][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5386.027572][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5386.027572][   T73]      addrconf_dad_begin+0x310/0x670
[ 5386.027572][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5386.027572][   T73]      process_one_work+0x84d/0x18a0
[ 5386.027572][   T73]      worker_thread+0x587/0xd30
[ 5386.027572][   T73]      kthread+0x28a/0x350
[ 5386.027572][   T73]      ret_from_fork+0x31/0x70
[ 5386.027572][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5386.027572][   T73] 
[ 5386.029832][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5386.029832][   T73]      netdev_get_by_index+0x5e/0x80
[ 5386.029832][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5386.029832][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5386.029832][   T73]      ip6_route_add+0x1c/0x140
[ 5386.029832][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5386.029832][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5386.029832][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5386.029832][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5386.029832][   T73]      netlink_rcv_skb+0x130/0x360
[ 5386.029832][   T73]      netlink_unicast+0x449/0x710
[ 5386.029832][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5386.029832][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5386.029832][   T73]      ___sys_sendmsg+0xee/0x170
[ 5386.029832][   T73]      __sys_sendmsg+0xcd/0x170
[ 5386.029832][   T73]      do_syscall_64+0xc6/0x1e0
[ 5386.029832][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5386.029832][   T73] 
[ 5386.032346][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5386.032346][   T73]      netdev_get_by_index+0x5e/0x80
[ 5386.032346][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5386.032346][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5386.032346][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5386.032346][   T73]      ipv6_add_addr+0x411/0x2000
[ 5386.032346][   T73]      inet6_addr_add+0x30e/0xa40
[ 5386.032346][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5386.032346][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5386.032346][   T73]      netlink_rcv_skb+0x130/0x360
[ 5386.032346][   T73]      netlink_unicast+0x449/0x710
[ 5386.032346][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5386.032346][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5386.032346][   T73]      ___sys_sendmsg+0xee/0x170
[ 5386.032346][   T73]      __sys_sendmsg+0xcd/0x170
[ 5386.032346][   T73]      do_syscall_64+0xc6/0x1e0
[ 5386.032346][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5386.032346][   T73] 
[ 5386.034807][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5386.034807][   T73]      netdev_get_by_index+0x5e/0x80
[ 5386.034807][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5386.034807][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5386.034807][   T73]      ip6_route_add+0x1c/0x140
[ 5386.034807][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5386.034807][   T73]      addrconf_add_dev+0xe2/0x170
[ 5386.034807][   T73]      inet6_addr_add+0x12f/0xa40
[ 5386.034807][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5386.034807][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5386.034807][   T73]      netlink_rcv_skb+0x130/0x360
[ 5386.034807][   T73]      netlink_unicast+0x449/0x710
[ 5386.034807][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5386.034807][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5386.034807][   T73]      ___sys_sendmsg+0xee/0x170
[ 5386.034807][   T73]      __sys_sendmsg+0xcd/0x170
[ 5386.034807][   T73]      do_syscall_64+0xc6/0x1e0
[ 5386.034807][   T73] 
[ 5386.037778][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5386.037778][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5386.037778][   T73]      ipv6_find_idev+0x102/0x170
[ 5386.037778][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5386.037778][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5386.037778][   T73]      netlink_rcv_skb+0x130/0x360
[ 5386.037778][   T73]      netlink_unicast+0x449/0x710
[ 5386.037778][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5386.037778][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5386.037778][   T73]      ___sys_sendmsg+0xee/0x170
[ 5386.037778][   T73]      __sys_sendmsg+0xcd/0x170
[ 5386.037778][   T73]      do_syscall_64+0xc6/0x1e0
[ 5386.037778][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5386.037778][   T73] 
[ 5386.039675][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5386.039675][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5386.039675][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5386.039675][   T73]      ipv6_find_idev+0x102/0x170
[ 5386.039675][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5386.039675][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5386.039675][   T73]      netlink_rcv_skb+0x130/0x360
[ 5386.039675][   T73]      netlink_unicast+0x449/0x710
[ 5386.039675][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5386.039675][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5386.039675][   T73]      ___sys_sendmsg+0xee/0x170
[ 5386.039675][   T73]      __sys_sendmsg+0xcd/0x170
[ 5386.039675][   T73]      do_syscall_64+0xc6/0x1e0
[ 5386.039675][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5386.039675][   T73] 
[ 5396.143787][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5396.147038][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5396.147038][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5396.147038][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5396.147038][   T73]      fib6_nh_init+0xa22/0x1580
[ 5396.147038][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5396.147038][   T73]      ip6_route_add+0x1c/0x140
[ 5396.147038][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5396.147038][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5396.147038][   T73]      netlink_rcv_skb+0x130/0x360
[ 5396.147038][   T73]      netlink_unicast+0x449/0x710
[ 5396.147038][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5396.147038][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5396.147038][   T73]      ___sys_sendmsg+0xee/0x170
[ 5396.147038][   T73]      __sys_sendmsg+0xcd/0x170
[ 5396.147038][   T73]      do_syscall_64+0xc6/0x1e0
[ 5396.147038][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5396.147038][   T73] 
[ 5396.149234][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5396.149234][   T73]      dst_init+0x84/0x4a0
[ 5396.149234][   T73]      dst_alloc+0x97/0x150
[ 5396.149234][   T73]      ip6_dst_alloc+0x23/0x90
[ 5396.149234][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5396.149234][   T73]      ip6_pol_route+0x56f/0x840
[ 5396.149234][   T73]      fib6_rule_lookup+0x456/0x630
[ 5396.149234][   T73]      ip6_route_input+0x59c/0xa50
[ 5396.149234][   T73]      ipv6_rcv+0x397/0x810
[ 5396.149234][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5396.149234][   T73]      process_backlog+0x101/0x620
[ 5396.149234][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5396.149234][   T73]      net_rx_action+0x495/0xbe0
[ 5396.149234][   T73]      __do_softirq+0x1b5/0x7f6
[ 5396.149234][   T73] 
[ 5396.151057][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5396.151057][   T73]      netdev_get_by_index+0x5e/0x80
[ 5396.151057][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5396.151057][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5396.151057][   T73]      ip6_route_add+0x1c/0x140
[ 5396.151057][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5396.151057][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5396.151057][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5396.151057][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5396.151057][   T73]      netlink_rcv_skb+0x130/0x360
[ 5396.151057][   T73]      netlink_unicast+0x449/0x710
[ 5396.151057][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5396.151057][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5396.151057][   T73]      ___sys_sendmsg+0xee/0x170
[ 5396.151057][   T73]      __sys_sendmsg+0xcd/0x170
[ 5396.151057][   T73]      do_syscall_64+0xc6/0x1e0
[ 5396.151057][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5396.151057][   T73] 
[ 5396.153288][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5396.153288][   T73]      netdev_get_by_index+0x5e/0x80
[ 5396.153288][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5396.153288][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5396.153288][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5396.153288][   T73]      ipv6_add_addr+0x411/0x2000
[ 5396.153288][   T73]      inet6_addr_add+0x30e/0xa40
[ 5396.153288][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5396.153288][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5396.153288][   T73]      netlink_rcv_skb+0x130/0x360
[ 5396.153288][   T73]      netlink_unicast+0x449/0x710
[ 5396.153288][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5396.153288][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5396.153288][   T73]      ___sys_sendmsg+0xee/0x170
[ 5396.153288][   T73]      __sys_sendmsg+0xcd/0x170
[ 5396.153288][   T73]      do_syscall_64+0xc6/0x1e0
[ 5396.153288][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5396.153288][   T73] 
[ 5396.155508][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5396.155508][   T73]      netdev_get_by_index+0x5e/0x80
[ 5396.155508][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5396.155508][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5396.155508][   T73]      ip6_route_add+0x1c/0x140
[ 5396.155508][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5396.155508][   T73]      addrconf_add_dev+0xe2/0x170
[ 5396.155508][   T73]      inet6_addr_add+0x12f/0xa40
[ 5396.155508][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5396.155508][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5396.155508][   T73]      netlink_rcv_skb+0x130/0x360
[ 5396.155508][   T73]      netlink_unicast+0x449/0x710
[ 5396.155508][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5396.155508][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5396.155508][   T73]      ___sys_sendmsg+0xee/0x170
[ 5396.155508][   T73]      __sys_sendmsg+0xcd/0x170
[ 5396.155508][   T73]      do_syscall_64+0xc6/0x1e0
[ 5396.155508][   T73] 
[ 5396.157683][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5396.157683][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5396.157683][   T73]      ipv6_find_idev+0x102/0x170
[ 5396.157683][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5396.157683][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5396.157683][   T73]      netlink_rcv_skb+0x130/0x360
[ 5396.157683][   T73]      netlink_unicast+0x449/0x710
[ 5396.157683][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5396.157683][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5396.157683][   T73]      ___sys_sendmsg+0xee/0x170
[ 5396.157683][   T73]      __sys_sendmsg+0xcd/0x170
[ 5396.157683][   T73]      do_syscall_64+0xc6/0x1e0
[ 5396.157683][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5396.157683][   T73] 
[ 5396.159390][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5396.159390][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5396.159390][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5396.159390][   T73]      ipv6_find_idev+0x102/0x170
[ 5396.159390][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5396.159390][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5396.159390][   T73]      netlink_rcv_skb+0x130/0x360
[ 5396.159390][   T73]      netlink_unicast+0x449/0x710
[ 5396.159390][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5396.159390][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5396.159390][   T73]      ___sys_sendmsg+0xee/0x170
[ 5396.159390][   T73]      __sys_sendmsg+0xcd/0x170
[ 5396.159390][   T73]      do_syscall_64+0xc6/0x1e0
[ 5396.159390][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5396.159390][   T73] 
[ 5396.161271][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5396.161586][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5396.161586][   T73]      netdev_get_by_index+0x5e/0x80
[ 5396.161586][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5396.161586][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5396.161586][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5396.161586][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5396.161586][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5396.161586][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5396.161586][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5396.161586][   T73]      addrconf_dad_begin+0x310/0x670
[ 5396.161586][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5396.161586][   T73]      process_one_work+0x84d/0x18a0
[ 5396.161586][   T73]      worker_thread+0x587/0xd30
[ 5396.161586][   T73]      kthread+0x28a/0x350
[ 5396.161586][   T73]      ret_from_fork+0x31/0x70
[ 5396.161586][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5396.161586][   T73] 
[ 5396.163722][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5396.163722][   T73]      netdev_get_by_index+0x5e/0x80
[ 5396.163722][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5396.163722][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5396.163722][   T73]      ip6_route_add+0x1c/0x140
[ 5396.163722][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5396.163722][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5396.163722][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5396.163722][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5396.163722][   T73]      netlink_rcv_skb+0x130/0x360
[ 5396.163722][   T73]      netlink_unicast+0x449/0x710
[ 5396.163722][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5396.163722][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5396.163722][   T73]      ___sys_sendmsg+0xee/0x170
[ 5396.163722][   T73]      __sys_sendmsg+0xcd/0x170
[ 5396.163722][   T73]      do_syscall_64+0xc6/0x1e0
[ 5396.163722][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5396.163722][   T73] 
[ 5396.165944][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5396.165944][   T73]      netdev_get_by_index+0x5e/0x80
[ 5396.165944][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5396.165944][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5396.165944][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5396.165944][   T73]      ipv6_add_addr+0x411/0x2000
[ 5396.165944][   T73]      inet6_addr_add+0x30e/0xa40
[ 5396.165944][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5396.165944][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5396.165944][   T73]      netlink_rcv_skb+0x130/0x360
[ 5396.165944][   T73]      netlink_unicast+0x449/0x710
[ 5396.165944][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5396.165944][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5396.165944][   T73]      ___sys_sendmsg+0xee/0x170
[ 5396.165944][   T73]      __sys_sendmsg+0xcd/0x170
[ 5396.165944][   T73]      do_syscall_64+0xc6/0x1e0
[ 5396.165944][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5396.165944][   T73] 
[ 5396.168190][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5396.168190][   T73]      netdev_get_by_index+0x5e/0x80
[ 5396.168190][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5396.168190][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5396.168190][   T73]      ip6_route_add+0x1c/0x140
[ 5396.168190][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5396.168190][   T73]      addrconf_add_dev+0xe2/0x170
[ 5396.168190][   T73]      inet6_addr_add+0x12f/0xa40
[ 5396.168190][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5396.168190][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5396.168190][   T73]      netlink_rcv_skb+0x130/0x360
[ 5396.168190][   T73]      netlink_unicast+0x449/0x710
[ 5396.168190][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5396.168190][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5396.168190][   T73]      ___sys_sendmsg+0xee/0x170
[ 5396.168190][   T73]      __sys_sendmsg+0xcd/0x170
[ 5396.168190][   T73]      do_syscall_64+0xc6/0x1e0
[ 5396.168190][   T73] 
[ 5396.170378][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5396.170378][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5396.170378][   T73]      ipv6_find_idev+0x102/0x170
[ 5396.170378][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5396.170378][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5396.170378][   T73]      netlink_rcv_skb+0x130/0x360
[ 5396.170378][   T73]      netlink_unicast+0x449/0x710
[ 5396.170378][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5396.170378][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5396.170378][   T73]      ___sys_sendmsg+0xee/0x170
[ 5396.170378][   T73]      __sys_sendmsg+0xcd/0x170
[ 5396.170378][   T73]      do_syscall_64+0xc6/0x1e0
[ 5396.170378][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5396.170378][   T73] 
[ 5396.172091][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5396.172091][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5396.172091][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5396.172091][   T73]      ipv6_find_idev+0x102/0x170
[ 5396.172091][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5396.172091][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5396.172091][   T73]      netlink_rcv_skb+0x130/0x360
[ 5396.172091][   T73]      netlink_unicast+0x449/0x710
[ 5396.172091][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5396.172091][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5396.172091][   T73]      ___sys_sendmsg+0xee/0x170
[ 5396.172091][   T73]      __sys_sendmsg+0xcd/0x170
[ 5396.172091][   T73]      do_syscall_64+0xc6/0x1e0
[ 5396.172091][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5396.172091][   T73] 
[ 5396.173966][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5396.174261][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5396.174261][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5396.174261][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5396.174261][   T73]      fib6_nh_init+0xa22/0x1580
[ 5396.174261][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5396.174261][   T73]      ip6_route_add+0x1c/0x140
[ 5396.174261][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5396.174261][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5396.174261][   T73]      netlink_rcv_skb+0x130/0x360
[ 5396.174261][   T73]      netlink_unicast+0x449/0x710
[ 5396.174261][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5396.174261][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5396.174261][   T73]      ___sys_sendmsg+0xee/0x170
[ 5396.174261][   T73]      __sys_sendmsg+0xcd/0x170
[ 5396.174261][   T73]      do_syscall_64+0xc6/0x1e0
[ 5396.174261][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5396.174261][   T73] 
[ 5396.176552][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5396.176552][   T73]      dst_init+0x84/0x4a0
[ 5396.176552][   T73]      dst_alloc+0x97/0x150
[ 5396.176552][   T73]      ip6_dst_alloc+0x23/0x90
[ 5396.176552][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5396.176552][   T73]      ip6_pol_route+0x56f/0x840
[ 5396.176552][   T73]      fib6_rule_lookup+0x456/0x630
[ 5396.176552][   T73]      ip6_route_input+0x59c/0xa50
[ 5396.176552][   T73]      ipv6_rcv+0x397/0x810
[ 5396.176552][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5396.176552][   T73]      process_backlog+0x101/0x620
[ 5396.176552][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5396.176552][   T73]      net_rx_action+0x495/0xbe0
[ 5396.176552][   T73]      __do_softirq+0x1b5/0x7f6
[ 5396.176552][   T73] 
[ 5396.178618][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5396.178618][   T73]      netdev_get_by_index+0x5e/0x80
[ 5396.178618][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5396.178618][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5396.178618][   T73]      ip6_route_add+0x1c/0x140
[ 5396.178618][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5396.178618][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5396.178618][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5396.178618][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5396.178618][   T73]      netlink_rcv_skb+0x130/0x360
[ 5396.178618][   T73]      netlink_unicast+0x449/0x710
[ 5396.178618][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5396.178618][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5396.178618][   T73]      ___sys_sendmsg+0xee/0x170
[ 5396.178618][   T73]      __sys_sendmsg+0xcd/0x170
[ 5396.178618][   T73]      do_syscall_64+0xc6/0x1e0
[ 5396.178618][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5396.178618][   T73] 
[ 5396.181113][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5396.181113][   T73]      netdev_get_by_index+0x5e/0x80
[ 5396.181113][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5396.181113][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5396.181113][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5396.181113][   T73]      ipv6_add_addr+0x411/0x2000
[ 5396.181113][   T73]      inet6_addr_add+0x30e/0xa40
[ 5396.181113][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5396.181113][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5396.181113][   T73]      netlink_rcv_skb+0x130/0x360
[ 5396.181113][   T73]      netlink_unicast+0x449/0x710
[ 5396.181113][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5396.181113][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5396.181113][   T73]      ___sys_sendmsg+0xee/0x170
[ 5396.181113][   T73]      __sys_sendmsg+0xcd/0x170
[ 5396.181113][   T73]      do_syscall_64+0xc6/0x1e0
[ 5396.181113][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5396.181113][   T73] 
[ 5396.183506][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5396.183506][   T73]      netdev_get_by_index+0x5e/0x80
[ 5396.183506][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5396.183506][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5396.183506][   T73]      ip6_route_add+0x1c/0x140
[ 5396.183506][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5396.183506][   T73]      addrconf_add_dev+0xe2/0x170
[ 5396.183506][   T73]      inet6_addr_add+0x12f/0xa40
[ 5396.183506][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5396.183506][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5396.183506][   T73]      netlink_rcv_skb+0x130/0x360
[ 5396.183506][   T73]      netlink_unicast+0x449/0x710
[ 5396.183506][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5396.183506][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5396.183506][   T73]      ___sys_sendmsg+0xee/0x170
[ 5396.183506][   T73]      __sys_sendmsg+0xcd/0x170
[ 5396.183506][   T73]      do_syscall_64+0xc6/0x1e0
[ 5396.183506][   T73] 
[ 5396.185929][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5396.185929][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5396.185929][   T73]      ipv6_find_idev+0x102/0x170
[ 5396.185929][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5396.185929][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5396.185929][   T73]      netlink_rcv_skb+0x130/0x360
[ 5396.185929][   T73]      netlink_unicast+0x449/0x710
[ 5396.185929][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5396.185929][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5396.185929][   T73]      ___sys_sendmsg+0xee/0x170
[ 5396.185929][   T73]      __sys_sendmsg+0xcd/0x170
[ 5396.185929][   T73]      do_syscall_64+0xc6/0x1e0
[ 5396.185929][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5396.185929][   T73] 
[ 5396.187883][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5396.187883][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5396.187883][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5396.187883][   T73]      ipv6_find_idev+0x102/0x170
[ 5396.187883][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5396.187883][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5396.187883][   T73]      netlink_rcv_skb+0x130/0x360
[ 5396.187883][   T73]      netlink_unicast+0x449/0x710
[ 5396.187883][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5396.187883][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5396.187883][   T73]      ___sys_sendmsg+0xee/0x170
[ 5396.187883][   T73]      __sys_sendmsg+0xcd/0x170
[ 5396.187883][   T73]      do_syscall_64+0xc6/0x1e0
[ 5396.187883][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5396.187883][   T73] 
[ 5396.189944][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5396.190311][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5396.190311][   T73]      netdev_get_by_index+0x5e/0x80
[ 5396.190311][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5396.190311][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5396.190311][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5396.190311][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5396.190311][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5396.190311][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5396.190311][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5396.190311][   T73]      addrconf_dad_begin+0x310/0x670
[ 5396.190311][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5396.190311][   T73]      process_one_work+0x84d/0x18a0
[ 5396.190311][   T73]      worker_thread+0x587/0xd30
[ 5396.190311][   T73]      kthread+0x28a/0x350
[ 5396.190311][   T73]      ret_from_fork+0x31/0x70
[ 5396.190311][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5396.190311][   T73] 
[ 5396.192542][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5396.192542][   T73]      netdev_get_by_index+0x5e/0x80
[ 5396.192542][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5396.192542][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5396.192542][   T73]      ip6_route_add+0x1c/0x140
[ 5396.192542][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5396.192542][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5396.192542][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5396.192542][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5396.192542][   T73]      netlink_rcv_skb+0x130/0x360
[ 5396.192542][   T73]      netlink_unicast+0x449/0x710
[ 5396.192542][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5396.192542][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5396.192542][   T73]      ___sys_sendmsg+0xee/0x170
[ 5396.192542][   T73]      __sys_sendmsg+0xcd/0x170
[ 5396.192542][   T73]      do_syscall_64+0xc6/0x1e0
[ 5396.192542][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5396.192542][   T73] 
[ 5396.195039][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5396.195039][   T73]      netdev_get_by_index+0x5e/0x80
[ 5396.195039][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5396.195039][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5396.195039][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5396.195039][   T73]      ipv6_add_addr+0x411/0x2000
[ 5396.195039][   T73]      inet6_addr_add+0x30e/0xa40
[ 5396.195039][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5396.195039][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5396.195039][   T73]      netlink_rcv_skb+0x130/0x360
[ 5396.195039][   T73]      netlink_unicast+0x449/0x710
[ 5396.195039][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5396.195039][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5396.195039][   T73]      ___sys_sendmsg+0xee/0x170
[ 5396.195039][   T73]      __sys_sendmsg+0xcd/0x170
[ 5396.195039][   T73]      do_syscall_64+0xc6/0x1e0
[ 5396.195039][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5396.195039][   T73] 
[ 5396.197496][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5396.197496][   T73]      netdev_get_by_index+0x5e/0x80
[ 5396.197496][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5396.197496][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5396.197496][   T73]      ip6_route_add+0x1c/0x140
[ 5396.197496][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5396.197496][   T73]      addrconf_add_dev+0xe2/0x170
[ 5396.197496][   T73]      inet6_addr_add+0x12f/0xa40
[ 5396.197496][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5396.197496][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5396.197496][   T73]      netlink_rcv_skb+0x130/0x360
[ 5396.197496][   T73]      netlink_unicast+0x449/0x710
[ 5396.197496][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5396.197496][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5396.197496][   T73]      ___sys_sendmsg+0xee/0x170
[ 5396.197496][   T73]      __sys_sendmsg+0xcd/0x170
[ 5396.197496][   T73]      do_syscall_64+0xc6/0x1e0
[ 5396.197496][   T73] 
[ 5396.200005][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5396.200005][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5396.200005][   T73]      ipv6_find_idev+0x102/0x170
[ 5396.200005][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5396.200005][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5396.200005][   T73]      netlink_rcv_skb+0x130/0x360
[ 5396.200005][   T73]      netlink_unicast+0x449/0x710
[ 5396.200005][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5396.200005][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5396.200005][   T73]      ___sys_sendmsg+0xee/0x170
[ 5396.200005][   T73]      __sys_sendmsg+0xcd/0x170
[ 5396.200005][   T73]      do_syscall_64+0xc6/0x1e0
[ 5396.200005][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5396.200005][   T73] 
[ 5396.201892][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5396.201892][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5396.201892][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5396.201892][   T73]      ipv6_find_idev+0x102/0x170
[ 5396.201892][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5396.201892][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5396.201892][   T73]      netlink_rcv_skb+0x130/0x360
[ 5396.201892][   T73]      netlink_unicast+0x449/0x710
[ 5396.201892][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5396.201892][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5396.201892][   T73]      ___sys_sendmsg+0xee/0x170
[ 5396.201892][   T73]      __sys_sendmsg+0xcd/0x170
[ 5396.201892][   T73]      do_syscall_64+0xc6/0x1e0
[ 5396.201892][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5396.201892][   T73] 
[ 5406.223776][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5406.224229][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5406.224229][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5406.224229][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5406.224229][   T73]      fib6_nh_init+0xa22/0x1580
[ 5406.224229][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5406.224229][   T73]      ip6_route_add+0x1c/0x140
[ 5406.224229][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5406.224229][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5406.224229][   T73]      netlink_rcv_skb+0x130/0x360
[ 5406.224229][   T73]      netlink_unicast+0x449/0x710
[ 5406.224229][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5406.224229][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5406.224229][   T73]      ___sys_sendmsg+0xee/0x170
[ 5406.224229][   T73]      __sys_sendmsg+0xcd/0x170
[ 5406.224229][   T73]      do_syscall_64+0xc6/0x1e0
[ 5406.224229][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5406.224229][   T73] 
[ 5406.226331][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5406.226331][   T73]      dst_init+0x84/0x4a0
[ 5406.226331][   T73]      dst_alloc+0x97/0x150
[ 5406.226331][   T73]      ip6_dst_alloc+0x23/0x90
[ 5406.226331][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5406.226331][   T73]      ip6_pol_route+0x56f/0x840
[ 5406.226331][   T73]      fib6_rule_lookup+0x456/0x630
[ 5406.226331][   T73]      ip6_route_input+0x59c/0xa50
[ 5406.226331][   T73]      ipv6_rcv+0x397/0x810
[ 5406.226331][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5406.226331][   T73]      process_backlog+0x101/0x620
[ 5406.226331][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5406.226331][   T73]      net_rx_action+0x495/0xbe0
[ 5406.226331][   T73]      __do_softirq+0x1b5/0x7f6
[ 5406.226331][   T73] 
[ 5406.228163][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5406.228163][   T73]      netdev_get_by_index+0x5e/0x80
[ 5406.228163][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5406.228163][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5406.228163][   T73]      ip6_route_add+0x1c/0x140
[ 5406.228163][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5406.228163][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5406.228163][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5406.228163][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5406.228163][   T73]      netlink_rcv_skb+0x130/0x360
[ 5406.228163][   T73]      netlink_unicast+0x449/0x710
[ 5406.228163][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5406.228163][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5406.228163][   T73]      ___sys_sendmsg+0xee/0x170
[ 5406.228163][   T73]      __sys_sendmsg+0xcd/0x170
[ 5406.228163][   T73]      do_syscall_64+0xc6/0x1e0
[ 5406.228163][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5406.228163][   T73] 
[ 5406.230386][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5406.230386][   T73]      netdev_get_by_index+0x5e/0x80
[ 5406.230386][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5406.230386][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5406.230386][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5406.230386][   T73]      ipv6_add_addr+0x411/0x2000
[ 5406.230386][   T73]      inet6_addr_add+0x30e/0xa40
[ 5406.230386][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5406.230386][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5406.230386][   T73]      netlink_rcv_skb+0x130/0x360
[ 5406.230386][   T73]      netlink_unicast+0x449/0x710
[ 5406.230386][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5406.230386][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5406.230386][   T73]      ___sys_sendmsg+0xee/0x170
[ 5406.230386][   T73]      __sys_sendmsg+0xcd/0x170
[ 5406.230386][   T73]      do_syscall_64+0xc6/0x1e0
[ 5406.230386][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5406.230386][   T73] 
[ 5406.232588][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5406.232588][   T73]      netdev_get_by_index+0x5e/0x80
[ 5406.232588][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5406.232588][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5406.232588][   T73]      ip6_route_add+0x1c/0x140
[ 5406.232588][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5406.232588][   T73]      addrconf_add_dev+0xe2/0x170
[ 5406.232588][   T73]      inet6_addr_add+0x12f/0xa40
[ 5406.232588][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5406.232588][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5406.232588][   T73]      netlink_rcv_skb+0x130/0x360
[ 5406.232588][   T73]      netlink_unicast+0x449/0x710
[ 5406.232588][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5406.232588][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5406.232588][   T73]      ___sys_sendmsg+0xee/0x170
[ 5406.232588][   T73]      __sys_sendmsg+0xcd/0x170
[ 5406.232588][   T73]      do_syscall_64+0xc6/0x1e0
[ 5406.232588][   T73] 
[ 5406.234754][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5406.234754][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5406.234754][   T73]      ipv6_find_idev+0x102/0x170
[ 5406.234754][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5406.234754][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5406.234754][   T73]      netlink_rcv_skb+0x130/0x360
[ 5406.234754][   T73]      netlink_unicast+0x449/0x710
[ 5406.234754][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5406.234754][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5406.234754][   T73]      ___sys_sendmsg+0xee/0x170
[ 5406.234754][   T73]      __sys_sendmsg+0xcd/0x170
[ 5406.234754][   T73]      do_syscall_64+0xc6/0x1e0
[ 5406.234754][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5406.234754][   T73] 
[ 5406.236450][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5406.236450][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5406.236450][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5406.236450][   T73]      ipv6_find_idev+0x102/0x170
[ 5406.236450][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5406.236450][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5406.236450][   T73]      netlink_rcv_skb+0x130/0x360
[ 5406.236450][   T73]      netlink_unicast+0x449/0x710
[ 5406.236450][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5406.236450][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5406.236450][   T73]      ___sys_sendmsg+0xee/0x170
[ 5406.236450][   T73]      __sys_sendmsg+0xcd/0x170
[ 5406.236450][   T73]      do_syscall_64+0xc6/0x1e0
[ 5406.236450][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5406.236450][   T73] 
[ 5406.238321][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5406.238621][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5406.238621][   T73]      netdev_get_by_index+0x5e/0x80
[ 5406.238621][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5406.238621][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5406.238621][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5406.238621][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5406.238621][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5406.238621][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5406.238621][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5406.238621][   T73]      addrconf_dad_begin+0x310/0x670
[ 5406.238621][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5406.238621][   T73]      process_one_work+0x84d/0x18a0
[ 5406.238621][   T73]      worker_thread+0x587/0xd30
[ 5406.238621][   T73]      kthread+0x28a/0x350
[ 5406.238621][   T73]      ret_from_fork+0x31/0x70
[ 5406.238621][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5406.238621][   T73] 
[ 5406.240747][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5406.240747][   T73]      netdev_get_by_index+0x5e/0x80
[ 5406.240747][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5406.240747][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5406.240747][   T73]      ip6_route_add+0x1c/0x140
[ 5406.240747][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5406.240747][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5406.240747][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5406.240747][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5406.240747][   T73]      netlink_rcv_skb+0x130/0x360
[ 5406.240747][   T73]      netlink_unicast+0x449/0x710
[ 5406.240747][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5406.240747][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5406.240747][   T73]      ___sys_sendmsg+0xee/0x170
[ 5406.240747][   T73]      __sys_sendmsg+0xcd/0x170
[ 5406.240747][   T73]      do_syscall_64+0xc6/0x1e0
[ 5406.240747][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5406.240747][   T73] 
[ 5406.242981][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5406.242981][   T73]      netdev_get_by_index+0x5e/0x80
[ 5406.242981][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5406.242981][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5406.242981][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5406.242981][   T73]      ipv6_add_addr+0x411/0x2000
[ 5406.242981][   T73]      inet6_addr_add+0x30e/0xa40
[ 5406.242981][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5406.242981][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5406.242981][   T73]      netlink_rcv_skb+0x130/0x360
[ 5406.242981][   T73]      netlink_unicast+0x449/0x710
[ 5406.242981][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5406.242981][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5406.242981][   T73]      ___sys_sendmsg+0xee/0x170
[ 5406.242981][   T73]      __sys_sendmsg+0xcd/0x170
[ 5406.242981][   T73]      do_syscall_64+0xc6/0x1e0
[ 5406.242981][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5406.242981][   T73] 
[ 5406.245192][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5406.245192][   T73]      netdev_get_by_index+0x5e/0x80
[ 5406.245192][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5406.245192][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5406.245192][   T73]      ip6_route_add+0x1c/0x140
[ 5406.245192][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5406.245192][   T73]      addrconf_add_dev+0xe2/0x170
[ 5406.245192][   T73]      inet6_addr_add+0x12f/0xa40
[ 5406.245192][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5406.245192][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5406.245192][   T73]      netlink_rcv_skb+0x130/0x360
[ 5406.245192][   T73]      netlink_unicast+0x449/0x710
[ 5406.245192][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5406.245192][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5406.245192][   T73]      ___sys_sendmsg+0xee/0x170
[ 5406.245192][   T73]      __sys_sendmsg+0xcd/0x170
[ 5406.245192][   T73]      do_syscall_64+0xc6/0x1e0
[ 5406.245192][   T73] 
[ 5406.247371][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5406.247371][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5406.247371][   T73]      ipv6_find_idev+0x102/0x170
[ 5406.247371][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5406.247371][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5406.247371][   T73]      netlink_rcv_skb+0x130/0x360
[ 5406.247371][   T73]      netlink_unicast+0x449/0x710
[ 5406.247371][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5406.247371][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5406.247371][   T73]      ___sys_sendmsg+0xee/0x170
[ 5406.247371][   T73]      __sys_sendmsg+0xcd/0x170
[ 5406.247371][   T73]      do_syscall_64+0xc6/0x1e0
[ 5406.247371][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5406.247371][   T73] 
[ 5406.249085][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5406.249085][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5406.249085][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5406.249085][   T73]      ipv6_find_idev+0x102/0x170
[ 5406.249085][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5406.249085][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5406.249085][   T73]      netlink_rcv_skb+0x130/0x360
[ 5406.249085][   T73]      netlink_unicast+0x449/0x710
[ 5406.249085][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5406.249085][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5406.249085][   T73]      ___sys_sendmsg+0xee/0x170
[ 5406.249085][   T73]      __sys_sendmsg+0xcd/0x170
[ 5406.249085][   T73]      do_syscall_64+0xc6/0x1e0
[ 5406.249085][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5406.249085][   T73] 
[ 5406.250951][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5406.251246][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5406.251246][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5406.251246][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5406.251246][   T73]      fib6_nh_init+0xa22/0x1580
[ 5406.251246][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5406.251246][   T73]      ip6_route_add+0x1c/0x140
[ 5406.251246][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5406.251246][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5406.251246][   T73]      netlink_rcv_skb+0x130/0x360
[ 5406.251246][   T73]      netlink_unicast+0x449/0x710
[ 5406.251246][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5406.251246][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5406.251246][   T73]      ___sys_sendmsg+0xee/0x170
[ 5406.251246][   T73]      __sys_sendmsg+0xcd/0x170
[ 5406.251246][   T73]      do_syscall_64+0xc6/0x1e0
[ 5406.251246][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5406.251246][   T73] 
[ 5406.253516][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5406.253516][   T73]      dst_init+0x84/0x4a0
[ 5406.253516][   T73]      dst_alloc+0x97/0x150
[ 5406.253516][   T73]      ip6_dst_alloc+0x23/0x90
[ 5406.253516][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5406.253516][   T73]      ip6_pol_route+0x56f/0x840
[ 5406.253516][   T73]      fib6_rule_lookup+0x456/0x630
[ 5406.253516][   T73]      ip6_route_input+0x59c/0xa50
[ 5406.253516][   T73]      ipv6_rcv+0x397/0x810
[ 5406.253516][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5406.253516][   T73]      process_backlog+0x101/0x620
[ 5406.253516][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5406.253516][   T73]      net_rx_action+0x495/0xbe0
[ 5406.253516][   T73]      __do_softirq+0x1b5/0x7f6
[ 5406.253516][   T73] 
[ 5406.255527][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5406.255527][   T73]      netdev_get_by_index+0x5e/0x80
[ 5406.255527][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5406.255527][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5406.255527][   T73]      ip6_route_add+0x1c/0x140
[ 5406.255527][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5406.255527][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5406.255527][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5406.255527][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5406.255527][   T73]      netlink_rcv_skb+0x130/0x360
[ 5406.255527][   T73]      netlink_unicast+0x449/0x710
[ 5406.255527][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5406.255527][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5406.255527][   T73]      ___sys_sendmsg+0xee/0x170
[ 5406.255527][   T73]      __sys_sendmsg+0xcd/0x170
[ 5406.255527][   T73]      do_syscall_64+0xc6/0x1e0
[ 5406.255527][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5406.255527][   T73] 
[ 5406.257987][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5406.257987][   T73]      netdev_get_by_index+0x5e/0x80
[ 5406.257987][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5406.257987][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5406.257987][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5406.257987][   T73]      ipv6_add_addr+0x411/0x2000
[ 5406.257987][   T73]      inet6_addr_add+0x30e/0xa40
[ 5406.257987][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5406.257987][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5406.257987][   T73]      netlink_rcv_skb+0x130/0x360
[ 5406.257987][   T73]      netlink_unicast+0x449/0x710
[ 5406.257987][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5406.257987][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5406.257987][   T73]      ___sys_sendmsg+0xee/0x170
[ 5406.257987][   T73]      __sys_sendmsg+0xcd/0x170
[ 5406.257987][   T73]      do_syscall_64+0xc6/0x1e0
[ 5406.257987][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5406.257987][   T73] 
[ 5406.260460][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5406.260460][   T73]      netdev_get_by_index+0x5e/0x80
[ 5406.260460][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5406.260460][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5406.260460][   T73]      ip6_route_add+0x1c/0x140
[ 5406.260460][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5406.260460][   T73]      addrconf_add_dev+0xe2/0x170
[ 5406.260460][   T73]      inet6_addr_add+0x12f/0xa40
[ 5406.260460][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5406.260460][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5406.260460][   T73]      netlink_rcv_skb+0x130/0x360
[ 5406.260460][   T73]      netlink_unicast+0x449/0x710
[ 5406.260460][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5406.260460][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5406.260460][   T73]      ___sys_sendmsg+0xee/0x170
[ 5406.260460][   T73]      __sys_sendmsg+0xcd/0x170
[ 5406.260460][   T73]      do_syscall_64+0xc6/0x1e0
[ 5406.260460][   T73] 
[ 5406.262885][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5406.262885][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5406.262885][   T73]      ipv6_find_idev+0x102/0x170
[ 5406.262885][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5406.262885][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5406.262885][   T73]      netlink_rcv_skb+0x130/0x360
[ 5406.262885][   T73]      netlink_unicast+0x449/0x710
[ 5406.262885][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5406.262885][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5406.262885][   T73]      ___sys_sendmsg+0xee/0x170
[ 5406.262885][   T73]      __sys_sendmsg+0xcd/0x170
[ 5406.262885][   T73]      do_syscall_64+0xc6/0x1e0
[ 5406.262885][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5406.262885][   T73] 
[ 5406.264775][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5406.264775][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5406.264775][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5406.264775][   T73]      ipv6_find_idev+0x102/0x170
[ 5406.264775][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5406.264775][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5406.264775][   T73]      netlink_rcv_skb+0x130/0x360
[ 5406.264775][   T73]      netlink_unicast+0x449/0x710
[ 5406.264775][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5406.264775][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5406.264775][   T73]      ___sys_sendmsg+0xee/0x170
[ 5406.264775][   T73]      __sys_sendmsg+0xcd/0x170
[ 5406.264775][   T73]      do_syscall_64+0xc6/0x1e0
[ 5406.264775][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5406.264775][   T73] 
[ 5406.266843][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5406.267219][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5406.267219][   T73]      netdev_get_by_index+0x5e/0x80
[ 5406.267219][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5406.267219][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5406.267219][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5406.267219][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5406.267219][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5406.267219][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5406.267219][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5406.267219][   T73]      addrconf_dad_begin+0x310/0x670
[ 5406.267219][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5406.267219][   T73]      process_one_work+0x84d/0x18a0
[ 5406.267219][   T73]      worker_thread+0x587/0xd30
[ 5406.267219][   T73]      kthread+0x28a/0x350
[ 5406.267219][   T73]      ret_from_fork+0x31/0x70
[ 5406.267219][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5406.267219][   T73] 
[ 5406.269477][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5406.269477][   T73]      netdev_get_by_index+0x5e/0x80
[ 5406.269477][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5406.269477][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5406.269477][   T73]      ip6_route_add+0x1c/0x140
[ 5406.269477][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5406.269477][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5406.269477][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5406.269477][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5406.269477][   T73]      netlink_rcv_skb+0x130/0x360
[ 5406.269477][   T73]      netlink_unicast+0x449/0x710
[ 5406.269477][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5406.269477][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5406.269477][   T73]      ___sys_sendmsg+0xee/0x170
[ 5406.269477][   T73]      __sys_sendmsg+0xcd/0x170
[ 5406.269477][   T73]      do_syscall_64+0xc6/0x1e0
[ 5406.269477][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5406.269477][   T73] 
[ 5406.272008][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5406.272008][   T73]      netdev_get_by_index+0x5e/0x80
[ 5406.272008][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5406.272008][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5406.272008][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5406.272008][   T73]      ipv6_add_addr+0x411/0x2000
[ 5406.272008][   T73]      inet6_addr_add+0x30e/0xa40
[ 5406.272008][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5406.272008][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5406.272008][   T73]      netlink_rcv_skb+0x130/0x360
[ 5406.272008][   T73]      netlink_unicast+0x449/0x710
[ 5406.272008][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5406.272008][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5406.272008][   T73]      ___sys_sendmsg+0xee/0x170
[ 5406.272008][   T73]      __sys_sendmsg+0xcd/0x170
[ 5406.272008][   T73]      do_syscall_64+0xc6/0x1e0
[ 5406.272008][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5406.272008][   T73] 
[ 5406.274486][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5406.274486][   T73]      netdev_get_by_index+0x5e/0x80
[ 5406.274486][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5406.274486][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5406.274486][   T73]      ip6_route_add+0x1c/0x140
[ 5406.274486][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5406.274486][   T73]      addrconf_add_dev+0xe2/0x170
[ 5406.274486][   T73]      inet6_addr_add+0x12f/0xa40
[ 5406.274486][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5406.274486][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5406.274486][   T73]      netlink_rcv_skb+0x130/0x360
[ 5406.274486][   T73]      netlink_unicast+0x449/0x710
[ 5406.274486][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5406.274486][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5406.274486][   T73]      ___sys_sendmsg+0xee/0x170
[ 5406.274486][   T73]      __sys_sendmsg+0xcd/0x170
[ 5406.274486][   T73]      do_syscall_64+0xc6/0x1e0
[ 5406.274486][   T73] 
[ 5406.276913][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5406.276913][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5406.276913][   T73]      ipv6_find_idev+0x102/0x170
[ 5406.276913][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5406.276913][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5406.276913][   T73]      netlink_rcv_skb+0x130/0x360
[ 5406.276913][   T73]      netlink_unicast+0x449/0x710
[ 5406.276913][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5406.276913][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5406.276913][   T73]      ___sys_sendmsg+0xee/0x170
[ 5406.276913][   T73]      __sys_sendmsg+0xcd/0x170
[ 5406.276913][   T73]      do_syscall_64+0xc6/0x1e0
[ 5406.276913][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5406.276913][   T73] 
[ 5406.278800][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5406.278800][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5406.278800][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5406.278800][   T73]      ipv6_find_idev+0x102/0x170
[ 5406.278800][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5406.278800][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5406.278800][   T73]      netlink_rcv_skb+0x130/0x360
[ 5406.278800][   T73]      netlink_unicast+0x449/0x710
[ 5406.278800][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5406.278800][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5406.278800][   T73]      ___sys_sendmsg+0xee/0x170
[ 5406.278800][   T73]      __sys_sendmsg+0xcd/0x170
[ 5406.278800][   T73]      do_syscall_64+0xc6/0x1e0
[ 5406.278800][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5406.278800][   T73] 
[ 5416.519771][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5416.520267][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5416.520267][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5416.520267][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5416.520267][   T73]      fib6_nh_init+0xa22/0x1580
[ 5416.520267][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5416.520267][   T73]      ip6_route_add+0x1c/0x140
[ 5416.520267][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5416.520267][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5416.520267][   T73]      netlink_rcv_skb+0x130/0x360
[ 5416.520267][   T73]      netlink_unicast+0x449/0x710
[ 5416.520267][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5416.520267][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5416.520267][   T73]      ___sys_sendmsg+0xee/0x170
[ 5416.520267][   T73]      __sys_sendmsg+0xcd/0x170
[ 5416.520267][   T73]      do_syscall_64+0xc6/0x1e0
[ 5416.520267][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5416.520267][   T73] 
[ 5416.522191][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5416.522191][   T73]      dst_init+0x84/0x4a0
[ 5416.522191][   T73]      dst_alloc+0x97/0x150
[ 5416.522191][   T73]      ip6_dst_alloc+0x23/0x90
[ 5416.522191][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5416.522191][   T73]      ip6_pol_route+0x56f/0x840
[ 5416.522191][   T73]      fib6_rule_lookup+0x456/0x630
[ 5416.522191][   T73]      ip6_route_input+0x59c/0xa50
[ 5416.522191][   T73]      ipv6_rcv+0x397/0x810
[ 5416.522191][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5416.522191][   T73]      process_backlog+0x101/0x620
[ 5416.522191][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5416.522191][   T73]      net_rx_action+0x495/0xbe0
[ 5416.522191][   T73]      __do_softirq+0x1b5/0x7f6
[ 5416.522191][   T73] 
[ 5416.523851][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5416.523851][   T73]      netdev_get_by_index+0x5e/0x80
[ 5416.523851][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5416.523851][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5416.523851][   T73]      ip6_route_add+0x1c/0x140
[ 5416.523851][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5416.523851][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5416.523851][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5416.523851][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5416.523851][   T73]      netlink_rcv_skb+0x130/0x360
[ 5416.523851][   T73]      netlink_unicast+0x449/0x710
[ 5416.523851][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5416.523851][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5416.523851][   T73]      ___sys_sendmsg+0xee/0x170
[ 5416.523851][   T73]      __sys_sendmsg+0xcd/0x170
[ 5416.523851][   T73]      do_syscall_64+0xc6/0x1e0
[ 5416.523851][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5416.523851][   T73] 
[ 5416.525874][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5416.525874][   T73]      netdev_get_by_index+0x5e/0x80
[ 5416.525874][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5416.525874][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5416.525874][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5416.525874][   T73]      ipv6_add_addr+0x411/0x2000
[ 5416.525874][   T73]      inet6_addr_add+0x30e/0xa40
[ 5416.525874][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5416.525874][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5416.525874][   T73]      netlink_rcv_skb+0x130/0x360
[ 5416.525874][   T73]      netlink_unicast+0x449/0x710
[ 5416.525874][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5416.525874][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5416.525874][   T73]      ___sys_sendmsg+0xee/0x170
[ 5416.525874][   T73]      __sys_sendmsg+0xcd/0x170
[ 5416.525874][   T73]      do_syscall_64+0xc6/0x1e0
[ 5416.525874][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5416.525874][   T73] 
[ 5416.527917][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5416.527917][   T73]      netdev_get_by_index+0x5e/0x80
[ 5416.527917][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5416.527917][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5416.527917][   T73]      ip6_route_add+0x1c/0x140
[ 5416.527917][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5416.527917][   T73]      addrconf_add_dev+0xe2/0x170
[ 5416.527917][   T73]      inet6_addr_add+0x12f/0xa40
[ 5416.527917][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5416.527917][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5416.527917][   T73]      netlink_rcv_skb+0x130/0x360
[ 5416.527917][   T73]      netlink_unicast+0x449/0x710
[ 5416.527917][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5416.527917][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5416.527917][   T73]      ___sys_sendmsg+0xee/0x170
[ 5416.527917][   T73]      __sys_sendmsg+0xcd/0x170
[ 5416.527917][   T73]      do_syscall_64+0xc6/0x1e0
[ 5416.527917][   T73] 
[ 5416.529900][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5416.529900][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5416.529900][   T73]      ipv6_find_idev+0x102/0x170
[ 5416.529900][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5416.529900][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5416.529900][   T73]      netlink_rcv_skb+0x130/0x360
[ 5416.529900][   T73]      netlink_unicast+0x449/0x710
[ 5416.529900][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5416.529900][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5416.529900][   T73]      ___sys_sendmsg+0xee/0x170
[ 5416.529900][   T73]      __sys_sendmsg+0xcd/0x170
[ 5416.529900][   T73]      do_syscall_64+0xc6/0x1e0
[ 5416.529900][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5416.529900][   T73] 
[ 5416.531447][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5416.531447][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5416.531447][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5416.531447][   T73]      ipv6_find_idev+0x102/0x170
[ 5416.531447][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5416.531447][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5416.531447][   T73]      netlink_rcv_skb+0x130/0x360
[ 5416.531447][   T73]      netlink_unicast+0x449/0x710
[ 5416.531447][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5416.531447][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5416.531447][   T73]      ___sys_sendmsg+0xee/0x170
[ 5416.531447][   T73]      __sys_sendmsg+0xcd/0x170
[ 5416.531447][   T73]      do_syscall_64+0xc6/0x1e0
[ 5416.531447][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5416.531447][   T73] 
[ 5416.533172][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5416.533468][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5416.533468][   T73]      netdev_get_by_index+0x5e/0x80
[ 5416.533468][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5416.533468][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5416.533468][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5416.533468][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5416.533468][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5416.533468][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5416.533468][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5416.533468][   T73]      addrconf_dad_begin+0x310/0x670
[ 5416.533468][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5416.533468][   T73]      process_one_work+0x84d/0x18a0
[ 5416.533468][   T73]      worker_thread+0x587/0xd30
[ 5416.533468][   T73]      kthread+0x28a/0x350
[ 5416.533468][   T73]      ret_from_fork+0x31/0x70
[ 5416.533468][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5416.533468][   T73] 
[ 5416.535401][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5416.535401][   T73]      netdev_get_by_index+0x5e/0x80
[ 5416.535401][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5416.535401][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5416.535401][   T73]      ip6_route_add+0x1c/0x140
[ 5416.535401][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5416.535401][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5416.535401][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5416.535401][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5416.535401][   T73]      netlink_rcv_skb+0x130/0x360
[ 5416.535401][   T73]      netlink_unicast+0x449/0x710
[ 5416.535401][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5416.535401][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5416.535401][   T73]      ___sys_sendmsg+0xee/0x170
[ 5416.535401][   T73]      __sys_sendmsg+0xcd/0x170
[ 5416.535401][   T73]      do_syscall_64+0xc6/0x1e0
[ 5416.535401][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5416.535401][   T73] 
[ 5416.537415][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5416.537415][   T73]      netdev_get_by_index+0x5e/0x80
[ 5416.537415][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5416.537415][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5416.537415][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5416.537415][   T73]      ipv6_add_addr+0x411/0x2000
[ 5416.537415][   T73]      inet6_addr_add+0x30e/0xa40
[ 5416.537415][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5416.537415][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5416.537415][   T73]      netlink_rcv_skb+0x130/0x360
[ 5416.537415][   T73]      netlink_unicast+0x449/0x710
[ 5416.537415][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5416.537415][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5416.537415][   T73]      ___sys_sendmsg+0xee/0x170
[ 5416.537415][   T73]      __sys_sendmsg+0xcd/0x170
[ 5416.537415][   T73]      do_syscall_64+0xc6/0x1e0
[ 5416.537415][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5416.537415][   T73] 
[ 5416.539437][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5416.539437][   T73]      netdev_get_by_index+0x5e/0x80
[ 5416.539437][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5416.539437][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5416.539437][   T73]      ip6_route_add+0x1c/0x140
[ 5416.539437][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5416.539437][   T73]      addrconf_add_dev+0xe2/0x170
[ 5416.539437][   T73]      inet6_addr_add+0x12f/0xa40
[ 5416.539437][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5416.539437][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5416.539437][   T73]      netlink_rcv_skb+0x130/0x360
[ 5416.539437][   T73]      netlink_unicast+0x449/0x710
[ 5416.539437][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5416.539437][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5416.539437][   T73]      ___sys_sendmsg+0xee/0x170
[ 5416.539437][   T73]      __sys_sendmsg+0xcd/0x170
[ 5416.539437][   T73]      do_syscall_64+0xc6/0x1e0
[ 5416.539437][   T73] 
[ 5416.541428][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5416.541428][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5416.541428][   T73]      ipv6_find_idev+0x102/0x170
[ 5416.541428][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5416.541428][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5416.541428][   T73]      netlink_rcv_skb+0x130/0x360
[ 5416.541428][   T73]      netlink_unicast+0x449/0x710
[ 5416.541428][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5416.541428][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5416.541428][   T73]      ___sys_sendmsg+0xee/0x170
[ 5416.541428][   T73]      __sys_sendmsg+0xcd/0x170
[ 5416.541428][   T73]      do_syscall_64+0xc6/0x1e0
[ 5416.541428][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5416.541428][   T73] 
[ 5416.542984][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5416.542984][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5416.542984][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5416.542984][   T73]      ipv6_find_idev+0x102/0x170
[ 5416.542984][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5416.542984][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5416.542984][   T73]      netlink_rcv_skb+0x130/0x360
[ 5416.542984][   T73]      netlink_unicast+0x449/0x710
[ 5416.542984][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5416.542984][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5416.542984][   T73]      ___sys_sendmsg+0xee/0x170
[ 5416.542984][   T73]      __sys_sendmsg+0xcd/0x170
[ 5416.542984][   T73]      do_syscall_64+0xc6/0x1e0
[ 5416.542984][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5416.542984][   T73] 
[ 5416.544684][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5416.544964][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5416.544964][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5416.544964][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5416.544964][   T73]      fib6_nh_init+0xa22/0x1580
[ 5416.544964][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5416.544964][   T73]      ip6_route_add+0x1c/0x140
[ 5416.544964][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5416.544964][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5416.544964][   T73]      netlink_rcv_skb+0x130/0x360
[ 5416.544964][   T73]      netlink_unicast+0x449/0x710
[ 5416.544964][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5416.544964][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5416.544964][   T73]      ___sys_sendmsg+0xee/0x170
[ 5416.544964][   T73]      __sys_sendmsg+0xcd/0x170
[ 5416.544964][   T73]      do_syscall_64+0xc6/0x1e0
[ 5416.544964][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5416.544964][   T73] 
[ 5416.547052][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5416.547052][   T73]      dst_init+0x84/0x4a0
[ 5416.547052][   T73]      dst_alloc+0x97/0x150
[ 5416.547052][   T73]      ip6_dst_alloc+0x23/0x90
[ 5416.547052][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5416.547052][   T73]      ip6_pol_route+0x56f/0x840
[ 5416.547052][   T73]      fib6_rule_lookup+0x456/0x630
[ 5416.547052][   T73]      ip6_route_input+0x59c/0xa50
[ 5416.547052][   T73]      ipv6_rcv+0x397/0x810
[ 5416.547052][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5416.547052][   T73]      process_backlog+0x101/0x620
[ 5416.547052][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5416.547052][   T73]      net_rx_action+0x495/0xbe0
[ 5416.547052][   T73]      __do_softirq+0x1b5/0x7f6
[ 5416.547052][   T73] 
[ 5416.548940][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5416.548940][   T73]      netdev_get_by_index+0x5e/0x80
[ 5416.548940][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5416.548940][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5416.548940][   T73]      ip6_route_add+0x1c/0x140
[ 5416.548940][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5416.548940][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5416.548940][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5416.548940][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5416.548940][   T73]      netlink_rcv_skb+0x130/0x360
[ 5416.548940][   T73]      netlink_unicast+0x449/0x710
[ 5416.548940][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5416.548940][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5416.548940][   T73]      ___sys_sendmsg+0xee/0x170
[ 5416.548940][   T73]      __sys_sendmsg+0xcd/0x170
[ 5416.548940][   T73]      do_syscall_64+0xc6/0x1e0
[ 5416.548940][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5416.548940][   T73] 
[ 5416.551205][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5416.551205][   T73]      netdev_get_by_index+0x5e/0x80
[ 5416.551205][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5416.551205][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5416.551205][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5416.551205][   T73]      ipv6_add_addr+0x411/0x2000
[ 5416.551205][   T73]      inet6_addr_add+0x30e/0xa40
[ 5416.551205][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5416.551205][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5416.551205][   T73]      netlink_rcv_skb+0x130/0x360
[ 5416.551205][   T73]      netlink_unicast+0x449/0x710
[ 5416.551205][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5416.551205][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5416.551205][   T73]      ___sys_sendmsg+0xee/0x170
[ 5416.551205][   T73]      __sys_sendmsg+0xcd/0x170
[ 5416.551205][   T73]      do_syscall_64+0xc6/0x1e0
[ 5416.551205][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5416.551205][   T73] 
[ 5416.553456][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5416.553456][   T73]      netdev_get_by_index+0x5e/0x80
[ 5416.553456][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5416.553456][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5416.553456][   T73]      ip6_route_add+0x1c/0x140
[ 5416.553456][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5416.553456][   T73]      addrconf_add_dev+0xe2/0x170
[ 5416.553456][   T73]      inet6_addr_add+0x12f/0xa40
[ 5416.553456][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5416.553456][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5416.553456][   T73]      netlink_rcv_skb+0x130/0x360
[ 5416.553456][   T73]      netlink_unicast+0x449/0x710
[ 5416.553456][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5416.553456][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5416.553456][   T73]      ___sys_sendmsg+0xee/0x170
[ 5416.553456][   T73]      __sys_sendmsg+0xcd/0x170
[ 5416.553456][   T73]      do_syscall_64+0xc6/0x1e0
[ 5416.553456][   T73] 
[ 5416.555672][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5416.555672][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5416.555672][   T73]      ipv6_find_idev+0x102/0x170
[ 5416.555672][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5416.555672][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5416.555672][   T73]      netlink_rcv_skb+0x130/0x360
[ 5416.555672][   T73]      netlink_unicast+0x449/0x710
[ 5416.555672][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5416.555672][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5416.555672][   T73]      ___sys_sendmsg+0xee/0x170
[ 5416.555672][   T73]      __sys_sendmsg+0xcd/0x170
[ 5416.555672][   T73]      do_syscall_64+0xc6/0x1e0
[ 5416.555672][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5416.555672][   T73] 
[ 5416.558015][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5416.558015][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5416.558015][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5416.558015][   T73]      ipv6_find_idev+0x102/0x170
[ 5416.558015][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5416.558015][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5416.558015][   T73]      netlink_rcv_skb+0x130/0x360
[ 5416.558015][   T73]      netlink_unicast+0x449/0x710
[ 5416.558015][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5416.558015][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5416.558015][   T73]      ___sys_sendmsg+0xee/0x170
[ 5416.558015][   T73]      __sys_sendmsg+0xcd/0x170
[ 5416.558015][   T73]      do_syscall_64+0xc6/0x1e0
[ 5416.558015][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5416.558015][   T73] 
[ 5416.559907][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5416.560186][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5416.560186][   T73]      netdev_get_by_index+0x5e/0x80
[ 5416.560186][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5416.560186][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5416.560186][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5416.560186][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5416.560186][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5416.560186][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5416.560186][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5416.560186][   T73]      addrconf_dad_begin+0x310/0x670
[ 5416.560186][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5416.560186][   T73]      process_one_work+0x84d/0x18a0
[ 5416.560186][   T73]      worker_thread+0x587/0xd30
[ 5416.560186][   T73]      kthread+0x28a/0x350
[ 5416.560186][   T73]      ret_from_fork+0x31/0x70
[ 5416.560186][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5416.560186][   T73] 
[ 5416.562350][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5416.562350][   T73]      netdev_get_by_index+0x5e/0x80
[ 5416.562350][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5416.562350][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5416.562350][   T73]      ip6_route_add+0x1c/0x140
[ 5416.562350][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5416.562350][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5416.562350][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5416.562350][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5416.562350][   T73]      netlink_rcv_skb+0x130/0x360
[ 5416.562350][   T73]      netlink_unicast+0x449/0x710
[ 5416.562350][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5416.562350][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5416.562350][   T73]      ___sys_sendmsg+0xee/0x170
[ 5416.562350][   T73]      __sys_sendmsg+0xcd/0x170
[ 5416.562350][   T73]      do_syscall_64+0xc6/0x1e0
[ 5416.562350][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5416.562350][   T73] 
[ 5416.564601][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5416.564601][   T73]      netdev_get_by_index+0x5e/0x80
[ 5416.564601][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5416.564601][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5416.564601][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5416.564601][   T73]      ipv6_add_addr+0x411/0x2000
[ 5416.564601][   T73]      inet6_addr_add+0x30e/0xa40
[ 5416.564601][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5416.564601][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5416.564601][   T73]      netlink_rcv_skb+0x130/0x360
[ 5416.564601][   T73]      netlink_unicast+0x449/0x710
[ 5416.564601][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5416.564601][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5416.564601][   T73]      ___sys_sendmsg+0xee/0x170
[ 5416.564601][   T73]      __sys_sendmsg+0xcd/0x170
[ 5416.564601][   T73]      do_syscall_64+0xc6/0x1e0
[ 5416.564601][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5416.564601][   T73] 
[ 5416.567588][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5416.567588][   T73]      netdev_get_by_index+0x5e/0x80
[ 5416.567588][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5416.567588][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5416.567588][   T73]      ip6_route_add+0x1c/0x140
[ 5416.567588][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5416.567588][   T73]      addrconf_add_dev+0xe2/0x170
[ 5416.567588][   T73]      inet6_addr_add+0x12f/0xa40
[ 5416.567588][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5416.567588][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5416.567588][   T73]      netlink_rcv_skb+0x130/0x360
[ 5416.567588][   T73]      netlink_unicast+0x449/0x710
[ 5416.567588][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5416.567588][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5416.567588][   T73]      ___sys_sendmsg+0xee/0x170
[ 5416.567588][   T73]      __sys_sendmsg+0xcd/0x170
[ 5416.567588][   T73]      do_syscall_64+0xc6/0x1e0
[ 5416.567588][   T73] 
[ 5416.569755][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5416.569755][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5416.569755][   T73]      ipv6_find_idev+0x102/0x170
[ 5416.569755][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5416.569755][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5416.569755][   T73]      netlink_rcv_skb+0x130/0x360
[ 5416.569755][   T73]      netlink_unicast+0x449/0x710
[ 5416.569755][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5416.569755][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5416.569755][   T73]      ___sys_sendmsg+0xee/0x170
[ 5416.569755][   T73]      __sys_sendmsg+0xcd/0x170
[ 5416.569755][   T73]      do_syscall_64+0xc6/0x1e0
[ 5416.569755][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5416.569755][   T73] 
[ 5416.571491][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5416.571491][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5416.571491][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5416.571491][   T73]      ipv6_find_idev+0x102/0x170
[ 5416.571491][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5416.571491][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5416.571491][   T73]      netlink_rcv_skb+0x130/0x360
[ 5416.571491][   T73]      netlink_unicast+0x449/0x710
[ 5416.571491][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5416.571491][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5416.571491][   T73]      ___sys_sendmsg+0xee/0x170
[ 5416.571491][   T73]      __sys_sendmsg+0xcd/0x170
[ 5416.571491][   T73]      do_syscall_64+0xc6/0x1e0
[ 5416.571491][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5416.571491][   T73] 
[ 5426.815802][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5426.816349][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5426.816349][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5426.816349][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5426.816349][   T73]      fib6_nh_init+0xa22/0x1580
[ 5426.816349][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5426.816349][   T73]      ip6_route_add+0x1c/0x140
[ 5426.816349][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5426.816349][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5426.816349][   T73]      netlink_rcv_skb+0x130/0x360
[ 5426.816349][   T73]      netlink_unicast+0x449/0x710
[ 5426.816349][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5426.816349][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5426.816349][   T73]      ___sys_sendmsg+0xee/0x170
[ 5426.816349][   T73]      __sys_sendmsg+0xcd/0x170
[ 5426.816349][   T73]      do_syscall_64+0xc6/0x1e0
[ 5426.816349][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5426.816349][   T73] 
[ 5426.818460][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5426.818460][   T73]      dst_init+0x84/0x4a0
[ 5426.818460][   T73]      dst_alloc+0x97/0x150
[ 5426.818460][   T73]      ip6_dst_alloc+0x23/0x90
[ 5426.818460][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5426.818460][   T73]      ip6_pol_route+0x56f/0x840
[ 5426.818460][   T73]      fib6_rule_lookup+0x456/0x630
[ 5426.818460][   T73]      ip6_route_input+0x59c/0xa50
[ 5426.818460][   T73]      ipv6_rcv+0x397/0x810
[ 5426.818460][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5426.818460][   T73]      process_backlog+0x101/0x620
[ 5426.818460][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5426.818460][   T73]      net_rx_action+0x495/0xbe0
[ 5426.818460][   T73]      __do_softirq+0x1b5/0x7f6
[ 5426.818460][   T73] 
[ 5426.820325][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5426.820325][   T73]      netdev_get_by_index+0x5e/0x80
[ 5426.820325][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5426.820325][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5426.820325][   T73]      ip6_route_add+0x1c/0x140
[ 5426.820325][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5426.820325][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5426.820325][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5426.820325][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5426.820325][   T73]      netlink_rcv_skb+0x130/0x360
[ 5426.820325][   T73]      netlink_unicast+0x449/0x710
[ 5426.820325][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5426.820325][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5426.820325][   T73]      ___sys_sendmsg+0xee/0x170
[ 5426.820325][   T73]      __sys_sendmsg+0xcd/0x170
[ 5426.820325][   T73]      do_syscall_64+0xc6/0x1e0
[ 5426.820325][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5426.820325][   T73] 
[ 5426.822539][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5426.822539][   T73]      netdev_get_by_index+0x5e/0x80
[ 5426.822539][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5426.822539][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5426.822539][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5426.822539][   T73]      ipv6_add_addr+0x411/0x2000
[ 5426.822539][   T73]      inet6_addr_add+0x30e/0xa40
[ 5426.822539][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5426.822539][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5426.822539][   T73]      netlink_rcv_skb+0x130/0x360
[ 5426.822539][   T73]      netlink_unicast+0x449/0x710
[ 5426.822539][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5426.822539][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5426.822539][   T73]      ___sys_sendmsg+0xee/0x170
[ 5426.822539][   T73]      __sys_sendmsg+0xcd/0x170
[ 5426.822539][   T73]      do_syscall_64+0xc6/0x1e0
[ 5426.822539][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5426.822539][   T73] 
[ 5426.824759][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5426.824759][   T73]      netdev_get_by_index+0x5e/0x80
[ 5426.824759][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5426.824759][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5426.824759][   T73]      ip6_route_add+0x1c/0x140
[ 5426.824759][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5426.824759][   T73]      addrconf_add_dev+0xe2/0x170
[ 5426.824759][   T73]      inet6_addr_add+0x12f/0xa40
[ 5426.824759][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5426.824759][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5426.824759][   T73]      netlink_rcv_skb+0x130/0x360
[ 5426.824759][   T73]      netlink_unicast+0x449/0x710
[ 5426.824759][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5426.824759][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5426.824759][   T73]      ___sys_sendmsg+0xee/0x170
[ 5426.824759][   T73]      __sys_sendmsg+0xcd/0x170
[ 5426.824759][   T73]      do_syscall_64+0xc6/0x1e0
[ 5426.824759][   T73] 
[ 5426.826942][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5426.826942][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5426.826942][   T73]      ipv6_find_idev+0x102/0x170
[ 5426.826942][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5426.826942][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5426.826942][   T73]      netlink_rcv_skb+0x130/0x360
[ 5426.826942][   T73]      netlink_unicast+0x449/0x710
[ 5426.826942][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5426.826942][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5426.826942][   T73]      ___sys_sendmsg+0xee/0x170
[ 5426.826942][   T73]      __sys_sendmsg+0xcd/0x170
[ 5426.826942][   T73]      do_syscall_64+0xc6/0x1e0
[ 5426.826942][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5426.826942][   T73] 
[ 5426.828645][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5426.828645][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5426.828645][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5426.828645][   T73]      ipv6_find_idev+0x102/0x170
[ 5426.828645][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5426.828645][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5426.828645][   T73]      netlink_rcv_skb+0x130/0x360
[ 5426.828645][   T73]      netlink_unicast+0x449/0x710
[ 5426.828645][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5426.828645][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5426.828645][   T73]      ___sys_sendmsg+0xee/0x170
[ 5426.828645][   T73]      __sys_sendmsg+0xcd/0x170
[ 5426.828645][   T73]      do_syscall_64+0xc6/0x1e0
[ 5426.828645][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5426.828645][   T73] 
[ 5426.830550][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5426.830874][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5426.830874][   T73]      netdev_get_by_index+0x5e/0x80
[ 5426.830874][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5426.830874][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5426.830874][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5426.830874][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5426.830874][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5426.830874][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5426.830874][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5426.830874][   T73]      addrconf_dad_begin+0x310/0x670
[ 5426.830874][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5426.830874][   T73]      process_one_work+0x84d/0x18a0
[ 5426.830874][   T73]      worker_thread+0x587/0xd30
[ 5426.830874][   T73]      kthread+0x28a/0x350
[ 5426.830874][   T73]      ret_from_fork+0x31/0x70
[ 5426.830874][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5426.830874][   T73] 
[ 5426.833015][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5426.833015][   T73]      netdev_get_by_index+0x5e/0x80
[ 5426.833015][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5426.833015][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5426.833015][   T73]      ip6_route_add+0x1c/0x140
[ 5426.833015][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5426.833015][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5426.833015][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5426.833015][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5426.833015][   T73]      netlink_rcv_skb+0x130/0x360
[ 5426.833015][   T73]      netlink_unicast+0x449/0x710
[ 5426.833015][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5426.833015][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5426.833015][   T73]      ___sys_sendmsg+0xee/0x170
[ 5426.833015][   T73]      __sys_sendmsg+0xcd/0x170
[ 5426.833015][   T73]      do_syscall_64+0xc6/0x1e0
[ 5426.833015][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5426.833015][   T73] 
[ 5426.837838][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5426.837838][   T73]      netdev_get_by_index+0x5e/0x80
[ 5426.837838][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5426.837838][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5426.837838][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5426.837838][   T73]      ipv6_add_addr+0x411/0x2000
[ 5426.837838][   T73]      inet6_addr_add+0x30e/0xa40
[ 5426.837838][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5426.837838][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5426.837838][   T73]      netlink_rcv_skb+0x130/0x360
[ 5426.837838][   T73]      netlink_unicast+0x449/0x710
[ 5426.837838][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5426.837838][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5426.837838][   T73]      ___sys_sendmsg+0xee/0x170
[ 5426.837838][   T73]      __sys_sendmsg+0xcd/0x170
[ 5426.837838][   T73]      do_syscall_64+0xc6/0x1e0
[ 5426.837838][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5426.837838][   T73] 
[ 5426.840116][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5426.840116][   T73]      netdev_get_by_index+0x5e/0x80
[ 5426.840116][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5426.840116][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5426.840116][   T73]      ip6_route_add+0x1c/0x140
[ 5426.840116][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5426.840116][   T73]      addrconf_add_dev+0xe2/0x170
[ 5426.840116][   T73]      inet6_addr_add+0x12f/0xa40
[ 5426.840116][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5426.840116][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5426.840116][   T73]      netlink_rcv_skb+0x130/0x360
[ 5426.840116][   T73]      netlink_unicast+0x449/0x710
[ 5426.840116][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5426.840116][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5426.840116][   T73]      ___sys_sendmsg+0xee/0x170
[ 5426.840116][   T73]      __sys_sendmsg+0xcd/0x170
[ 5426.840116][   T73]      do_syscall_64+0xc6/0x1e0
[ 5426.840116][   T73] 
[ 5426.842322][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5426.842322][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5426.842322][   T73]      ipv6_find_idev+0x102/0x170
[ 5426.842322][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5426.842322][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5426.842322][   T73]      netlink_rcv_skb+0x130/0x360
[ 5426.842322][   T73]      netlink_unicast+0x449/0x710
[ 5426.842322][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5426.842322][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5426.842322][   T73]      ___sys_sendmsg+0xee/0x170
[ 5426.842322][   T73]      __sys_sendmsg+0xcd/0x170
[ 5426.842322][   T73]      do_syscall_64+0xc6/0x1e0
[ 5426.842322][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5426.842322][   T73] 
[ 5426.844040][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5426.844040][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5426.844040][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5426.844040][   T73]      ipv6_find_idev+0x102/0x170
[ 5426.844040][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5426.844040][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5426.844040][   T73]      netlink_rcv_skb+0x130/0x360
[ 5426.844040][   T73]      netlink_unicast+0x449/0x710
[ 5426.844040][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5426.844040][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5426.844040][   T73]      ___sys_sendmsg+0xee/0x170
[ 5426.844040][   T73]      __sys_sendmsg+0xcd/0x170
[ 5426.844040][   T73]      do_syscall_64+0xc6/0x1e0
[ 5426.844040][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5426.844040][   T73] 
[ 5426.845942][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5426.846238][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5426.846238][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5426.846238][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5426.846238][   T73]      fib6_nh_init+0xa22/0x1580
[ 5426.846238][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5426.846238][   T73]      ip6_route_add+0x1c/0x140
[ 5426.846238][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5426.846238][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5426.846238][   T73]      netlink_rcv_skb+0x130/0x360
[ 5426.846238][   T73]      netlink_unicast+0x449/0x710
[ 5426.846238][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5426.846238][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5426.846238][   T73]      ___sys_sendmsg+0xee/0x170
[ 5426.846238][   T73]      __sys_sendmsg+0xcd/0x170
[ 5426.846238][   T73]      do_syscall_64+0xc6/0x1e0
[ 5426.846238][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5426.846238][   T73] 
[ 5426.848521][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5426.848521][   T73]      dst_init+0x84/0x4a0
[ 5426.848521][   T73]      dst_alloc+0x97/0x150
[ 5426.848521][   T73]      ip6_dst_alloc+0x23/0x90
[ 5426.848521][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5426.848521][   T73]      ip6_pol_route+0x56f/0x840
[ 5426.848521][   T73]      fib6_rule_lookup+0x456/0x630
[ 5426.848521][   T73]      ip6_route_input+0x59c/0xa50
[ 5426.848521][   T73]      ipv6_rcv+0x397/0x810
[ 5426.848521][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5426.848521][   T73]      process_backlog+0x101/0x620
[ 5426.848521][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5426.848521][   T73]      net_rx_action+0x495/0xbe0
[ 5426.848521][   T73]      __do_softirq+0x1b5/0x7f6
[ 5426.848521][   T73] 
[ 5426.850584][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5426.850584][   T73]      netdev_get_by_index+0x5e/0x80
[ 5426.850584][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5426.850584][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5426.850584][   T73]      ip6_route_add+0x1c/0x140
[ 5426.850584][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5426.850584][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5426.850584][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5426.850584][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5426.850584][   T73]      netlink_rcv_skb+0x130/0x360
[ 5426.850584][   T73]      netlink_unicast+0x449/0x710
[ 5426.850584][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5426.850584][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5426.850584][   T73]      ___sys_sendmsg+0xee/0x170
[ 5426.850584][   T73]      __sys_sendmsg+0xcd/0x170
[ 5426.850584][   T73]      do_syscall_64+0xc6/0x1e0
[ 5426.850584][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5426.850584][   T73] 
[ 5426.853044][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5426.853044][   T73]      netdev_get_by_index+0x5e/0x80
[ 5426.853044][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5426.853044][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5426.853044][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5426.853044][   T73]      ipv6_add_addr+0x411/0x2000
[ 5426.853044][   T73]      inet6_addr_add+0x30e/0xa40
[ 5426.853044][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5426.853044][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5426.853044][   T73]      netlink_rcv_skb+0x130/0x360
[ 5426.853044][   T73]      netlink_unicast+0x449/0x710
[ 5426.853044][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5426.853044][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5426.853044][   T73]      ___sys_sendmsg+0xee/0x170
[ 5426.853044][   T73]      __sys_sendmsg+0xcd/0x170
[ 5426.853044][   T73]      do_syscall_64+0xc6/0x1e0
[ 5426.853044][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5426.853044][   T73] 
[ 5426.855443][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5426.855443][   T73]      netdev_get_by_index+0x5e/0x80
[ 5426.855443][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5426.855443][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5426.855443][   T73]      ip6_route_add+0x1c/0x140
[ 5426.855443][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5426.855443][   T73]      addrconf_add_dev+0xe2/0x170
[ 5426.855443][   T73]      inet6_addr_add+0x12f/0xa40
[ 5426.855443][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5426.855443][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5426.855443][   T73]      netlink_rcv_skb+0x130/0x360
[ 5426.855443][   T73]      netlink_unicast+0x449/0x710
[ 5426.855443][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5426.855443][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5426.855443][   T73]      ___sys_sendmsg+0xee/0x170
[ 5426.855443][   T73]      __sys_sendmsg+0xcd/0x170
[ 5426.855443][   T73]      do_syscall_64+0xc6/0x1e0
[ 5426.855443][   T73] 
[ 5426.857904][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5426.857904][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5426.857904][   T73]      ipv6_find_idev+0x102/0x170
[ 5426.857904][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5426.857904][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5426.857904][   T73]      netlink_rcv_skb+0x130/0x360
[ 5426.857904][   T73]      netlink_unicast+0x449/0x710
[ 5426.857904][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5426.857904][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5426.857904][   T73]      ___sys_sendmsg+0xee/0x170
[ 5426.857904][   T73]      __sys_sendmsg+0xcd/0x170
[ 5426.857904][   T73]      do_syscall_64+0xc6/0x1e0
[ 5426.857904][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5426.857904][   T73] 
[ 5426.859848][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5426.859848][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5426.859848][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5426.859848][   T73]      ipv6_find_idev+0x102/0x170
[ 5426.859848][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5426.859848][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5426.859848][   T73]      netlink_rcv_skb+0x130/0x360
[ 5426.859848][   T73]      netlink_unicast+0x449/0x710
[ 5426.859848][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5426.859848][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5426.859848][   T73]      ___sys_sendmsg+0xee/0x170
[ 5426.859848][   T73]      __sys_sendmsg+0xcd/0x170
[ 5426.859848][   T73]      do_syscall_64+0xc6/0x1e0
[ 5426.859848][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5426.859848][   T73] 
[ 5426.862303][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5426.862608][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5426.862608][   T73]      netdev_get_by_index+0x5e/0x80
[ 5426.862608][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5426.862608][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5426.862608][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5426.862608][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5426.862608][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5426.862608][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5426.862608][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5426.862608][   T73]      addrconf_dad_begin+0x310/0x670
[ 5426.862608][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5426.862608][   T73]      process_one_work+0x84d/0x18a0
[ 5426.862608][   T73]      worker_thread+0x587/0xd30
[ 5426.862608][   T73]      kthread+0x28a/0x350
[ 5426.862608][   T73]      ret_from_fork+0x31/0x70
[ 5426.862608][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5426.862608][   T73] 
[ 5426.864725][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5426.864725][   T73]      netdev_get_by_index+0x5e/0x80
[ 5426.864725][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5426.864725][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5426.864725][   T73]      ip6_route_add+0x1c/0x140
[ 5426.864725][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5426.864725][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5426.864725][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5426.864725][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5426.864725][   T73]      netlink_rcv_skb+0x130/0x360
[ 5426.864725][   T73]      netlink_unicast+0x449/0x710
[ 5426.864725][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5426.864725][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5426.864725][   T73]      ___sys_sendmsg+0xee/0x170
[ 5426.864725][   T73]      __sys_sendmsg+0xcd/0x170
[ 5426.864725][   T73]      do_syscall_64+0xc6/0x1e0
[ 5426.864725][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5426.864725][   T73] 
[ 5426.867062][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5426.867062][   T73]      netdev_get_by_index+0x5e/0x80
[ 5426.867062][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5426.867062][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5426.867062][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5426.867062][   T73]      ipv6_add_addr+0x411/0x2000
[ 5426.867062][   T73]      inet6_addr_add+0x30e/0xa40
[ 5426.867062][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5426.867062][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5426.867062][   T73]      netlink_rcv_skb+0x130/0x360
[ 5426.867062][   T73]      netlink_unicast+0x449/0x710
[ 5426.867062][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5426.867062][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5426.867062][   T73]      ___sys_sendmsg+0xee/0x170
[ 5426.867062][   T73]      __sys_sendmsg+0xcd/0x170
[ 5426.867062][   T73]      do_syscall_64+0xc6/0x1e0
[ 5426.867062][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5426.867062][   T73] 
[ 5426.869531][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5426.869531][   T73]      netdev_get_by_index+0x5e/0x80
[ 5426.869531][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5426.869531][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5426.869531][   T73]      ip6_route_add+0x1c/0x140
[ 5426.869531][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5426.869531][   T73]      addrconf_add_dev+0xe2/0x170
[ 5426.869531][   T73]      inet6_addr_add+0x12f/0xa40
[ 5426.869531][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5426.869531][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5426.869531][   T73]      netlink_rcv_skb+0x130/0x360
[ 5426.869531][   T73]      netlink_unicast+0x449/0x710
[ 5426.869531][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5426.869531][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5426.869531][   T73]      ___sys_sendmsg+0xee/0x170
[ 5426.869531][   T73]      __sys_sendmsg+0xcd/0x170
[ 5426.869531][   T73]      do_syscall_64+0xc6/0x1e0
[ 5426.869531][   T73] 
[ 5426.871972][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5426.871972][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5426.871972][   T73]      ipv6_find_idev+0x102/0x170
[ 5426.871972][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5426.871972][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5426.871972][   T73]      netlink_rcv_skb+0x130/0x360
[ 5426.871972][   T73]      netlink_unicast+0x449/0x710
[ 5426.871972][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5426.871972][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5426.871972][   T73]      ___sys_sendmsg+0xee/0x170
[ 5426.871972][   T73]      __sys_sendmsg+0xcd/0x170
[ 5426.871972][   T73]      do_syscall_64+0xc6/0x1e0
[ 5426.871972][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5426.871972][   T73] 
[ 5426.873943][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5426.873943][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5426.873943][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5426.873943][   T73]      ipv6_find_idev+0x102/0x170
[ 5426.873943][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5426.873943][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5426.873943][   T73]      netlink_rcv_skb+0x130/0x360
[ 5426.873943][   T73]      netlink_unicast+0x449/0x710
[ 5426.873943][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5426.873943][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5426.873943][   T73]      ___sys_sendmsg+0xee/0x170
[ 5426.873943][   T73]      __sys_sendmsg+0xcd/0x170
[ 5426.873943][   T73]      do_syscall_64+0xc6/0x1e0
[ 5426.873943][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5426.873943][   T73] 
[ 5436.991717][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5436.992225][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5436.992225][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5436.992225][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5436.992225][   T73]      fib6_nh_init+0xa22/0x1580
[ 5436.992225][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5436.992225][   T73]      ip6_route_add+0x1c/0x140
[ 5436.992225][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5436.992225][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5436.992225][   T73]      netlink_rcv_skb+0x130/0x360
[ 5436.992225][   T73]      netlink_unicast+0x449/0x710
[ 5436.992225][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5436.992225][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5436.992225][   T73]      ___sys_sendmsg+0xee/0x170
[ 5436.992225][   T73]      __sys_sendmsg+0xcd/0x170
[ 5436.992225][   T73]      do_syscall_64+0xc6/0x1e0
[ 5436.992225][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5436.992225][   T73] 
[ 5436.994391][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5436.994391][   T73]      dst_init+0x84/0x4a0
[ 5436.994391][   T73]      dst_alloc+0x97/0x150
[ 5436.994391][   T73]      ip6_dst_alloc+0x23/0x90
[ 5436.994391][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5436.994391][   T73]      ip6_pol_route+0x56f/0x840
[ 5436.994391][   T73]      fib6_rule_lookup+0x456/0x630
[ 5436.994391][   T73]      ip6_route_input+0x59c/0xa50
[ 5436.994391][   T73]      ipv6_rcv+0x397/0x810
[ 5436.994391][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5436.994391][   T73]      process_backlog+0x101/0x620
[ 5436.994391][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5436.994391][   T73]      net_rx_action+0x495/0xbe0
[ 5436.994391][   T73]      __do_softirq+0x1b5/0x7f6
[ 5436.994391][   T73] 
[ 5436.996222][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5436.996222][   T73]      netdev_get_by_index+0x5e/0x80
[ 5436.996222][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5436.996222][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5436.996222][   T73]      ip6_route_add+0x1c/0x140
[ 5436.996222][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5436.996222][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5436.996222][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5436.996222][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5436.996222][   T73]      netlink_rcv_skb+0x130/0x360
[ 5436.996222][   T73]      netlink_unicast+0x449/0x710
[ 5436.996222][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5436.996222][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5436.996222][   T73]      ___sys_sendmsg+0xee/0x170
[ 5436.996222][   T73]      __sys_sendmsg+0xcd/0x170
[ 5436.996222][   T73]      do_syscall_64+0xc6/0x1e0
[ 5436.996222][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5436.996222][   T73] 
[ 5436.998470][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5436.998470][   T73]      netdev_get_by_index+0x5e/0x80
[ 5436.998470][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5436.998470][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5436.998470][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5436.998470][   T73]      ipv6_add_addr+0x411/0x2000
[ 5436.998470][   T73]      inet6_addr_add+0x30e/0xa40
[ 5436.998470][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5436.998470][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5436.998470][   T73]      netlink_rcv_skb+0x130/0x360
[ 5436.998470][   T73]      netlink_unicast+0x449/0x710
[ 5436.998470][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5436.998470][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5436.998470][   T73]      ___sys_sendmsg+0xee/0x170
[ 5436.998470][   T73]      __sys_sendmsg+0xcd/0x170
[ 5436.998470][   T73]      do_syscall_64+0xc6/0x1e0
[ 5436.998470][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5436.998470][   T73] 
[ 5437.000733][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5437.000733][   T73]      netdev_get_by_index+0x5e/0x80
[ 5437.000733][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5437.000733][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5437.000733][   T73]      ip6_route_add+0x1c/0x140
[ 5437.000733][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5437.000733][   T73]      addrconf_add_dev+0xe2/0x170
[ 5437.000733][   T73]      inet6_addr_add+0x12f/0xa40
[ 5437.000733][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5437.000733][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5437.000733][   T73]      netlink_rcv_skb+0x130/0x360
[ 5437.000733][   T73]      netlink_unicast+0x449/0x710
[ 5437.000733][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5437.000733][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5437.000733][   T73]      ___sys_sendmsg+0xee/0x170
[ 5437.000733][   T73]      __sys_sendmsg+0xcd/0x170
[ 5437.000733][   T73]      do_syscall_64+0xc6/0x1e0
[ 5437.000733][   T73] 
[ 5437.002939][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5437.002939][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5437.002939][   T73]      ipv6_find_idev+0x102/0x170
[ 5437.002939][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5437.002939][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5437.002939][   T73]      netlink_rcv_skb+0x130/0x360
[ 5437.002939][   T73]      netlink_unicast+0x449/0x710
[ 5437.002939][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5437.002939][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5437.002939][   T73]      ___sys_sendmsg+0xee/0x170
[ 5437.002939][   T73]      __sys_sendmsg+0xcd/0x170
[ 5437.002939][   T73]      do_syscall_64+0xc6/0x1e0
[ 5437.002939][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5437.002939][   T73] 
[ 5437.004675][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5437.004675][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5437.004675][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5437.004675][   T73]      ipv6_find_idev+0x102/0x170
[ 5437.004675][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5437.004675][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5437.004675][   T73]      netlink_rcv_skb+0x130/0x360
[ 5437.004675][   T73]      netlink_unicast+0x449/0x710
[ 5437.004675][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5437.004675][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5437.004675][   T73]      ___sys_sendmsg+0xee/0x170
[ 5437.004675][   T73]      __sys_sendmsg+0xcd/0x170
[ 5437.004675][   T73]      do_syscall_64+0xc6/0x1e0
[ 5437.004675][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5437.004675][   T73] 
[ 5437.006567][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5437.006890][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5437.006890][   T73]      netdev_get_by_index+0x5e/0x80
[ 5437.006890][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5437.006890][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5437.006890][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5437.006890][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5437.006890][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5437.006890][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5437.006890][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5437.006890][   T73]      addrconf_dad_begin+0x310/0x670
[ 5437.006890][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5437.006890][   T73]      process_one_work+0x84d/0x18a0
[ 5437.006890][   T73]      worker_thread+0x587/0xd30
[ 5437.006890][   T73]      kthread+0x28a/0x350
[ 5437.006890][   T73]      ret_from_fork+0x31/0x70
[ 5437.006890][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5437.006890][   T73] 
[ 5437.009040][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5437.009040][   T73]      netdev_get_by_index+0x5e/0x80
[ 5437.009040][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5437.009040][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5437.009040][   T73]      ip6_route_add+0x1c/0x140
[ 5437.009040][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5437.009040][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5437.009040][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5437.009040][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5437.009040][   T73]      netlink_rcv_skb+0x130/0x360
[ 5437.009040][   T73]      netlink_unicast+0x449/0x710
[ 5437.009040][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5437.009040][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5437.009040][   T73]      ___sys_sendmsg+0xee/0x170
[ 5437.009040][   T73]      __sys_sendmsg+0xcd/0x170
[ 5437.009040][   T73]      do_syscall_64+0xc6/0x1e0
[ 5437.009040][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5437.009040][   T73] 
[ 5437.011274][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5437.011274][   T73]      netdev_get_by_index+0x5e/0x80
[ 5437.011274][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5437.011274][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5437.011274][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5437.011274][   T73]      ipv6_add_addr+0x411/0x2000
[ 5437.011274][   T73]      inet6_addr_add+0x30e/0xa40
[ 5437.011274][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5437.011274][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5437.011274][   T73]      netlink_rcv_skb+0x130/0x360
[ 5437.011274][   T73]      netlink_unicast+0x449/0x710
[ 5437.011274][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5437.011274][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5437.011274][   T73]      ___sys_sendmsg+0xee/0x170
[ 5437.011274][   T73]      __sys_sendmsg+0xcd/0x170
[ 5437.011274][   T73]      do_syscall_64+0xc6/0x1e0
[ 5437.011274][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5437.011274][   T73] 
[ 5437.013496][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5437.013496][   T73]      netdev_get_by_index+0x5e/0x80
[ 5437.013496][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5437.013496][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5437.013496][   T73]      ip6_route_add+0x1c/0x140
[ 5437.013496][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5437.013496][   T73]      addrconf_add_dev+0xe2/0x170
[ 5437.013496][   T73]      inet6_addr_add+0x12f/0xa40
[ 5437.013496][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5437.013496][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5437.013496][   T73]      netlink_rcv_skb+0x130/0x360
[ 5437.013496][   T73]      netlink_unicast+0x449/0x710
[ 5437.013496][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5437.013496][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5437.013496][   T73]      ___sys_sendmsg+0xee/0x170
[ 5437.013496][   T73]      __sys_sendmsg+0xcd/0x170
[ 5437.013496][   T73]      do_syscall_64+0xc6/0x1e0
[ 5437.013496][   T73] 
[ 5437.015678][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5437.015678][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5437.015678][   T73]      ipv6_find_idev+0x102/0x170
[ 5437.015678][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5437.015678][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5437.015678][   T73]      netlink_rcv_skb+0x130/0x360
[ 5437.015678][   T73]      netlink_unicast+0x449/0x710
[ 5437.015678][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5437.015678][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5437.015678][   T73]      ___sys_sendmsg+0xee/0x170
[ 5437.015678][   T73]      __sys_sendmsg+0xcd/0x170
[ 5437.015678][   T73]      do_syscall_64+0xc6/0x1e0
[ 5437.015678][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5437.015678][   T73] 
[ 5437.017396][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5437.017396][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5437.017396][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5437.017396][   T73]      ipv6_find_idev+0x102/0x170
[ 5437.017396][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5437.017396][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5437.017396][   T73]      netlink_rcv_skb+0x130/0x360
[ 5437.017396][   T73]      netlink_unicast+0x449/0x710
[ 5437.017396][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5437.017396][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5437.017396][   T73]      ___sys_sendmsg+0xee/0x170
[ 5437.017396][   T73]      __sys_sendmsg+0xcd/0x170
[ 5437.017396][   T73]      do_syscall_64+0xc6/0x1e0
[ 5437.017396][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5437.017396][   T73] 
[ 5437.019299][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5437.019607][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5437.019607][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5437.019607][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5437.019607][   T73]      fib6_nh_init+0xa22/0x1580
[ 5437.019607][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5437.019607][   T73]      ip6_route_add+0x1c/0x140
[ 5437.019607][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5437.019607][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5437.019607][   T73]      netlink_rcv_skb+0x130/0x360
[ 5437.019607][   T73]      netlink_unicast+0x449/0x710
[ 5437.019607][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5437.019607][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5437.019607][   T73]      ___sys_sendmsg+0xee/0x170
[ 5437.019607][   T73]      __sys_sendmsg+0xcd/0x170
[ 5437.019607][   T73]      do_syscall_64+0xc6/0x1e0
[ 5437.019607][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5437.019607][   T73] 
[ 5437.021879][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5437.021879][   T73]      dst_init+0x84/0x4a0
[ 5437.021879][   T73]      dst_alloc+0x97/0x150
[ 5437.021879][   T73]      ip6_dst_alloc+0x23/0x90
[ 5437.021879][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5437.021879][   T73]      ip6_pol_route+0x56f/0x840
[ 5437.021879][   T73]      fib6_rule_lookup+0x456/0x630
[ 5437.021879][   T73]      ip6_route_input+0x59c/0xa50
[ 5437.021879][   T73]      ipv6_rcv+0x397/0x810
[ 5437.021879][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5437.021879][   T73]      process_backlog+0x101/0x620
[ 5437.021879][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5437.021879][   T73]      net_rx_action+0x495/0xbe0
[ 5437.021879][   T73]      __do_softirq+0x1b5/0x7f6
[ 5437.021879][   T73] 
[ 5437.023900][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5437.023900][   T73]      netdev_get_by_index+0x5e/0x80
[ 5437.023900][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5437.023900][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5437.023900][   T73]      ip6_route_add+0x1c/0x140
[ 5437.023900][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5437.023900][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5437.023900][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5437.023900][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5437.023900][   T73]      netlink_rcv_skb+0x130/0x360
[ 5437.023900][   T73]      netlink_unicast+0x449/0x710
[ 5437.023900][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5437.023900][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5437.023900][   T73]      ___sys_sendmsg+0xee/0x170
[ 5437.023900][   T73]      __sys_sendmsg+0xcd/0x170
[ 5437.023900][   T73]      do_syscall_64+0xc6/0x1e0
[ 5437.023900][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5437.023900][   T73] 
[ 5437.026950][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5437.026950][   T73]      netdev_get_by_index+0x5e/0x80
[ 5437.026950][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5437.026950][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5437.026950][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5437.026950][   T73]      ipv6_add_addr+0x411/0x2000
[ 5437.026950][   T73]      inet6_addr_add+0x30e/0xa40
[ 5437.026950][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5437.026950][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5437.026950][   T73]      netlink_rcv_skb+0x130/0x360
[ 5437.026950][   T73]      netlink_unicast+0x449/0x710
[ 5437.026950][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5437.026950][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5437.026950][   T73]      ___sys_sendmsg+0xee/0x170
[ 5437.026950][   T73]      __sys_sendmsg+0xcd/0x170
[ 5437.026950][   T73]      do_syscall_64+0xc6/0x1e0
[ 5437.026950][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5437.026950][   T73] 
[ 5437.029409][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5437.029409][   T73]      netdev_get_by_index+0x5e/0x80
[ 5437.029409][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5437.029409][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5437.029409][   T73]      ip6_route_add+0x1c/0x140
[ 5437.029409][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5437.029409][   T73]      addrconf_add_dev+0xe2/0x170
[ 5437.029409][   T73]      inet6_addr_add+0x12f/0xa40
[ 5437.029409][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5437.029409][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5437.029409][   T73]      netlink_rcv_skb+0x130/0x360
[ 5437.029409][   T73]      netlink_unicast+0x449/0x710
[ 5437.029409][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5437.029409][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5437.029409][   T73]      ___sys_sendmsg+0xee/0x170
[ 5437.029409][   T73]      __sys_sendmsg+0xcd/0x170
[ 5437.029409][   T73]      do_syscall_64+0xc6/0x1e0
[ 5437.029409][   T73] 
[ 5437.031927][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5437.031927][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5437.031927][   T73]      ipv6_find_idev+0x102/0x170
[ 5437.031927][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5437.031927][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5437.031927][   T73]      netlink_rcv_skb+0x130/0x360
[ 5437.031927][   T73]      netlink_unicast+0x449/0x710
[ 5437.031927][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5437.031927][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5437.031927][   T73]      ___sys_sendmsg+0xee/0x170
[ 5437.031927][   T73]      __sys_sendmsg+0xcd/0x170
[ 5437.031927][   T73]      do_syscall_64+0xc6/0x1e0
[ 5437.031927][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5437.031927][   T73] 
[ 5437.033852][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5437.033852][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5437.033852][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5437.033852][   T73]      ipv6_find_idev+0x102/0x170
[ 5437.033852][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5437.033852][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5437.033852][   T73]      netlink_rcv_skb+0x130/0x360
[ 5437.033852][   T73]      netlink_unicast+0x449/0x710
[ 5437.033852][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5437.033852][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5437.033852][   T73]      ___sys_sendmsg+0xee/0x170
[ 5437.033852][   T73]      __sys_sendmsg+0xcd/0x170
[ 5437.033852][   T73]      do_syscall_64+0xc6/0x1e0
[ 5437.033852][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5437.033852][   T73] 
[ 5437.035952][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5437.036338][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5437.036338][   T73]      netdev_get_by_index+0x5e/0x80
[ 5437.036338][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5437.036338][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5437.036338][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5437.036338][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5437.036338][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5437.036338][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5437.036338][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5437.036338][   T73]      addrconf_dad_begin+0x310/0x670
[ 5437.036338][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5437.036338][   T73]      process_one_work+0x84d/0x18a0
[ 5437.036338][   T73]      worker_thread+0x587/0xd30
[ 5437.036338][   T73]      kthread+0x28a/0x350
[ 5437.036338][   T73]      ret_from_fork+0x31/0x70
[ 5437.036338][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5437.036338][   T73] 
[ 5437.040770][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5437.040770][   T73]      netdev_get_by_index+0x5e/0x80
[ 5437.040770][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5437.040770][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5437.040770][   T73]      ip6_route_add+0x1c/0x140
[ 5437.040770][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5437.040770][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5437.040770][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5437.040770][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5437.040770][   T73]      netlink_rcv_skb+0x130/0x360
[ 5437.040770][   T73]      netlink_unicast+0x449/0x710
[ 5437.040770][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5437.040770][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5437.040770][   T73]      ___sys_sendmsg+0xee/0x170
[ 5437.040770][   T73]      __sys_sendmsg+0xcd/0x170
[ 5437.040770][   T73]      do_syscall_64+0xc6/0x1e0
[ 5437.040770][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5437.040770][   T73] 
[ 5437.043275][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5437.043275][   T73]      netdev_get_by_index+0x5e/0x80
[ 5437.043275][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5437.043275][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5437.043275][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5437.043275][   T73]      ipv6_add_addr+0x411/0x2000
[ 5437.043275][   T73]      inet6_addr_add+0x30e/0xa40
[ 5437.043275][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5437.043275][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5437.043275][   T73]      netlink_rcv_skb+0x130/0x360
[ 5437.043275][   T73]      netlink_unicast+0x449/0x710
[ 5437.043275][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5437.043275][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5437.043275][   T73]      ___sys_sendmsg+0xee/0x170
[ 5437.043275][   T73]      __sys_sendmsg+0xcd/0x170
[ 5437.043275][   T73]      do_syscall_64+0xc6/0x1e0
[ 5437.043275][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5437.043275][   T73] 
[ 5437.045803][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5437.045803][   T73]      netdev_get_by_index+0x5e/0x80
[ 5437.045803][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5437.045803][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5437.045803][   T73]      ip6_route_add+0x1c/0x140
[ 5437.045803][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5437.045803][   T73]      addrconf_add_dev+0xe2/0x170
[ 5437.045803][   T73]      inet6_addr_add+0x12f/0xa40
[ 5437.045803][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5437.045803][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5437.045803][   T73]      netlink_rcv_skb+0x130/0x360
[ 5437.045803][   T73]      netlink_unicast+0x449/0x710
[ 5437.045803][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5437.045803][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5437.045803][   T73]      ___sys_sendmsg+0xee/0x170
[ 5437.045803][   T73]      __sys_sendmsg+0xcd/0x170
[ 5437.045803][   T73]      do_syscall_64+0xc6/0x1e0
[ 5437.045803][   T73] 
[ 5437.048269][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5437.048269][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5437.048269][   T73]      ipv6_find_idev+0x102/0x170
[ 5437.048269][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5437.048269][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5437.048269][   T73]      netlink_rcv_skb+0x130/0x360
[ 5437.048269][   T73]      netlink_unicast+0x449/0x710
[ 5437.048269][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5437.048269][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5437.048269][   T73]      ___sys_sendmsg+0xee/0x170
[ 5437.048269][   T73]      __sys_sendmsg+0xcd/0x170
[ 5437.048269][   T73]      do_syscall_64+0xc6/0x1e0
[ 5437.048269][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5437.048269][   T73] 
[ 5437.050203][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5437.050203][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5437.050203][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5437.050203][   T73]      ipv6_find_idev+0x102/0x170
[ 5437.050203][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5437.050203][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5437.050203][   T73]      netlink_rcv_skb+0x130/0x360
[ 5437.050203][   T73]      netlink_unicast+0x449/0x710
[ 5437.050203][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5437.050203][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5437.050203][   T73]      ___sys_sendmsg+0xee/0x170
[ 5437.050203][   T73]      __sys_sendmsg+0xcd/0x170
[ 5437.050203][   T73]      do_syscall_64+0xc6/0x1e0
[ 5437.050203][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5437.050203][   T73] 
[ 5447.191862][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5447.192372][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5447.192372][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5447.192372][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5447.192372][   T73]      fib6_nh_init+0xa22/0x1580
[ 5447.192372][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5447.192372][   T73]      ip6_route_add+0x1c/0x140
[ 5447.192372][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5447.192372][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5447.192372][   T73]      netlink_rcv_skb+0x130/0x360
[ 5447.192372][   T73]      netlink_unicast+0x449/0x710
[ 5447.192372][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5447.192372][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5447.192372][   T73]      ___sys_sendmsg+0xee/0x170
[ 5447.192372][   T73]      __sys_sendmsg+0xcd/0x170
[ 5447.192372][   T73]      do_syscall_64+0xc6/0x1e0
[ 5447.192372][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5447.192372][   T73] 
[ 5447.194511][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5447.194511][   T73]      dst_init+0x84/0x4a0
[ 5447.194511][   T73]      dst_alloc+0x97/0x150
[ 5447.194511][   T73]      ip6_dst_alloc+0x23/0x90
[ 5447.194511][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5447.194511][   T73]      ip6_pol_route+0x56f/0x840
[ 5447.194511][   T73]      fib6_rule_lookup+0x456/0x630
[ 5447.194511][   T73]      ip6_route_input+0x59c/0xa50
[ 5447.194511][   T73]      ipv6_rcv+0x397/0x810
[ 5447.194511][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5447.194511][   T73]      process_backlog+0x101/0x620
[ 5447.194511][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5447.194511][   T73]      net_rx_action+0x495/0xbe0
[ 5447.194511][   T73]      __do_softirq+0x1b5/0x7f6
[ 5447.194511][   T73] 
[ 5447.196354][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5447.196354][   T73]      netdev_get_by_index+0x5e/0x80
[ 5447.196354][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5447.196354][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5447.196354][   T73]      ip6_route_add+0x1c/0x140
[ 5447.196354][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5447.196354][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5447.196354][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5447.196354][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5447.196354][   T73]      netlink_rcv_skb+0x130/0x360
[ 5447.196354][   T73]      netlink_unicast+0x449/0x710
[ 5447.196354][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5447.196354][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5447.196354][   T73]      ___sys_sendmsg+0xee/0x170
[ 5447.196354][   T73]      __sys_sendmsg+0xcd/0x170
[ 5447.196354][   T73]      do_syscall_64+0xc6/0x1e0
[ 5447.196354][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5447.196354][   T73] 
[ 5447.198595][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5447.198595][   T73]      netdev_get_by_index+0x5e/0x80
[ 5447.198595][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5447.198595][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5447.198595][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5447.198595][   T73]      ipv6_add_addr+0x411/0x2000
[ 5447.198595][   T73]      inet6_addr_add+0x30e/0xa40
[ 5447.198595][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5447.198595][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5447.198595][   T73]      netlink_rcv_skb+0x130/0x360
[ 5447.198595][   T73]      netlink_unicast+0x449/0x710
[ 5447.198595][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5447.198595][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5447.198595][   T73]      ___sys_sendmsg+0xee/0x170
[ 5447.198595][   T73]      __sys_sendmsg+0xcd/0x170
[ 5447.198595][   T73]      do_syscall_64+0xc6/0x1e0
[ 5447.198595][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5447.198595][   T73] 
[ 5447.200872][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5447.200872][   T73]      netdev_get_by_index+0x5e/0x80
[ 5447.200872][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5447.200872][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5447.200872][   T73]      ip6_route_add+0x1c/0x140
[ 5447.200872][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5447.200872][   T73]      addrconf_add_dev+0xe2/0x170
[ 5447.200872][   T73]      inet6_addr_add+0x12f/0xa40
[ 5447.200872][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5447.200872][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5447.200872][   T73]      netlink_rcv_skb+0x130/0x360
[ 5447.200872][   T73]      netlink_unicast+0x449/0x710
[ 5447.200872][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5447.200872][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5447.200872][   T73]      ___sys_sendmsg+0xee/0x170
[ 5447.200872][   T73]      __sys_sendmsg+0xcd/0x170
[ 5447.200872][   T73]      do_syscall_64+0xc6/0x1e0
[ 5447.200872][   T73] 
[ 5447.203088][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5447.203088][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5447.203088][   T73]      ipv6_find_idev+0x102/0x170
[ 5447.203088][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5447.203088][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5447.203088][   T73]      netlink_rcv_skb+0x130/0x360
[ 5447.203088][   T73]      netlink_unicast+0x449/0x710
[ 5447.203088][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5447.203088][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5447.203088][   T73]      ___sys_sendmsg+0xee/0x170
[ 5447.203088][   T73]      __sys_sendmsg+0xcd/0x170
[ 5447.203088][   T73]      do_syscall_64+0xc6/0x1e0
[ 5447.203088][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5447.203088][   T73] 
[ 5447.204810][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5447.204810][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5447.204810][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5447.204810][   T73]      ipv6_find_idev+0x102/0x170
[ 5447.204810][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5447.204810][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5447.204810][   T73]      netlink_rcv_skb+0x130/0x360
[ 5447.204810][   T73]      netlink_unicast+0x449/0x710
[ 5447.204810][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5447.204810][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5447.204810][   T73]      ___sys_sendmsg+0xee/0x170
[ 5447.204810][   T73]      __sys_sendmsg+0xcd/0x170
[ 5447.204810][   T73]      do_syscall_64+0xc6/0x1e0
[ 5447.204810][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5447.204810][   T73] 
[ 5447.206714][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5447.207018][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5447.207018][   T73]      netdev_get_by_index+0x5e/0x80
[ 5447.207018][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5447.207018][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5447.207018][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5447.207018][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5447.207018][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5447.207018][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5447.207018][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5447.207018][   T73]      addrconf_dad_begin+0x310/0x670
[ 5447.207018][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5447.207018][   T73]      process_one_work+0x84d/0x18a0
[ 5447.207018][   T73]      worker_thread+0x587/0xd30
[ 5447.207018][   T73]      kthread+0x28a/0x350
[ 5447.207018][   T73]      ret_from_fork+0x31/0x70
[ 5447.207018][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5447.207018][   T73] 
[ 5447.209177][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5447.209177][   T73]      netdev_get_by_index+0x5e/0x80
[ 5447.209177][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5447.209177][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5447.209177][   T73]      ip6_route_add+0x1c/0x140
[ 5447.209177][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5447.209177][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5447.209177][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5447.209177][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5447.209177][   T73]      netlink_rcv_skb+0x130/0x360
[ 5447.209177][   T73]      netlink_unicast+0x449/0x710
[ 5447.209177][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5447.209177][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5447.209177][   T73]      ___sys_sendmsg+0xee/0x170
[ 5447.209177][   T73]      __sys_sendmsg+0xcd/0x170
[ 5447.209177][   T73]      do_syscall_64+0xc6/0x1e0
[ 5447.209177][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5447.209177][   T73] 
[ 5447.211408][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5447.211408][   T73]      netdev_get_by_index+0x5e/0x80
[ 5447.211408][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5447.211408][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5447.211408][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5447.211408][   T73]      ipv6_add_addr+0x411/0x2000
[ 5447.211408][   T73]      inet6_addr_add+0x30e/0xa40
[ 5447.211408][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5447.211408][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5447.211408][   T73]      netlink_rcv_skb+0x130/0x360
[ 5447.211408][   T73]      netlink_unicast+0x449/0x710
[ 5447.211408][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5447.211408][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5447.211408][   T73]      ___sys_sendmsg+0xee/0x170
[ 5447.211408][   T73]      __sys_sendmsg+0xcd/0x170
[ 5447.211408][   T73]      do_syscall_64+0xc6/0x1e0
[ 5447.211408][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5447.211408][   T73] 
[ 5447.213673][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5447.213673][   T73]      netdev_get_by_index+0x5e/0x80
[ 5447.213673][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5447.213673][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5447.213673][   T73]      ip6_route_add+0x1c/0x140
[ 5447.213673][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5447.213673][   T73]      addrconf_add_dev+0xe2/0x170
[ 5447.213673][   T73]      inet6_addr_add+0x12f/0xa40
[ 5447.213673][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5447.213673][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5447.213673][   T73]      netlink_rcv_skb+0x130/0x360
[ 5447.213673][   T73]      netlink_unicast+0x449/0x710
[ 5447.213673][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5447.213673][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5447.213673][   T73]      ___sys_sendmsg+0xee/0x170
[ 5447.213673][   T73]      __sys_sendmsg+0xcd/0x170
[ 5447.213673][   T73]      do_syscall_64+0xc6/0x1e0
[ 5447.213673][   T73] 
[ 5447.215861][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5447.215861][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5447.215861][   T73]      ipv6_find_idev+0x102/0x170
[ 5447.215861][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5447.215861][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5447.215861][   T73]      netlink_rcv_skb+0x130/0x360
[ 5447.215861][   T73]      netlink_unicast+0x449/0x710
[ 5447.215861][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5447.215861][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5447.215861][   T73]      ___sys_sendmsg+0xee/0x170
[ 5447.215861][   T73]      __sys_sendmsg+0xcd/0x170
[ 5447.215861][   T73]      do_syscall_64+0xc6/0x1e0
[ 5447.215861][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5447.215861][   T73] 
[ 5447.217589][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5447.217589][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5447.217589][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5447.217589][   T73]      ipv6_find_idev+0x102/0x170
[ 5447.217589][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5447.217589][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5447.217589][   T73]      netlink_rcv_skb+0x130/0x360
[ 5447.217589][   T73]      netlink_unicast+0x449/0x710
[ 5447.217589][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5447.217589][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5447.217589][   T73]      ___sys_sendmsg+0xee/0x170
[ 5447.217589][   T73]      __sys_sendmsg+0xcd/0x170
[ 5447.217589][   T73]      do_syscall_64+0xc6/0x1e0
[ 5447.217589][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5447.217589][   T73] 
[ 5447.219482][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5447.219783][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5447.219783][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5447.219783][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5447.219783][   T73]      fib6_nh_init+0xa22/0x1580
[ 5447.219783][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5447.219783][   T73]      ip6_route_add+0x1c/0x140
[ 5447.219783][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5447.219783][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5447.219783][   T73]      netlink_rcv_skb+0x130/0x360
[ 5447.219783][   T73]      netlink_unicast+0x449/0x710
[ 5447.219783][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5447.219783][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5447.219783][   T73]      ___sys_sendmsg+0xee/0x170
[ 5447.219783][   T73]      __sys_sendmsg+0xcd/0x170
[ 5447.219783][   T73]      do_syscall_64+0xc6/0x1e0
[ 5447.219783][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5447.219783][   T73] 
[ 5447.222069][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5447.222069][   T73]      dst_init+0x84/0x4a0
[ 5447.222069][   T73]      dst_alloc+0x97/0x150
[ 5447.222069][   T73]      ip6_dst_alloc+0x23/0x90
[ 5447.222069][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5447.222069][   T73]      ip6_pol_route+0x56f/0x840
[ 5447.222069][   T73]      fib6_rule_lookup+0x456/0x630
[ 5447.222069][   T73]      ip6_route_input+0x59c/0xa50
[ 5447.222069][   T73]      ipv6_rcv+0x397/0x810
[ 5447.222069][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5447.222069][   T73]      process_backlog+0x101/0x620
[ 5447.222069][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5447.222069][   T73]      net_rx_action+0x495/0xbe0
[ 5447.222069][   T73]      __do_softirq+0x1b5/0x7f6
[ 5447.222069][   T73] 
[ 5447.224093][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5447.224093][   T73]      netdev_get_by_index+0x5e/0x80
[ 5447.224093][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5447.224093][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5447.224093][   T73]      ip6_route_add+0x1c/0x140
[ 5447.224093][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5447.224093][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5447.224093][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5447.224093][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5447.224093][   T73]      netlink_rcv_skb+0x130/0x360
[ 5447.224093][   T73]      netlink_unicast+0x449/0x710
[ 5447.224093][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5447.224093][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5447.224093][   T73]      ___sys_sendmsg+0xee/0x170
[ 5447.224093][   T73]      __sys_sendmsg+0xcd/0x170
[ 5447.224093][   T73]      do_syscall_64+0xc6/0x1e0
[ 5447.224093][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5447.224093][   T73] 
[ 5447.226637][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5447.226637][   T73]      netdev_get_by_index+0x5e/0x80
[ 5447.226637][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5447.226637][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5447.226637][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5447.226637][   T73]      ipv6_add_addr+0x411/0x2000
[ 5447.226637][   T73]      inet6_addr_add+0x30e/0xa40
[ 5447.226637][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5447.226637][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5447.226637][   T73]      netlink_rcv_skb+0x130/0x360
[ 5447.226637][   T73]      netlink_unicast+0x449/0x710
[ 5447.226637][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5447.226637][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5447.226637][   T73]      ___sys_sendmsg+0xee/0x170
[ 5447.226637][   T73]      __sys_sendmsg+0xcd/0x170
[ 5447.226637][   T73]      do_syscall_64+0xc6/0x1e0
[ 5447.226637][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5447.226637][   T73] 
[ 5447.229061][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5447.229061][   T73]      netdev_get_by_index+0x5e/0x80
[ 5447.229061][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5447.229061][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5447.229061][   T73]      ip6_route_add+0x1c/0x140
[ 5447.229061][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5447.229061][   T73]      addrconf_add_dev+0xe2/0x170
[ 5447.229061][   T73]      inet6_addr_add+0x12f/0xa40
[ 5447.229061][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5447.229061][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5447.229061][   T73]      netlink_rcv_skb+0x130/0x360
[ 5447.229061][   T73]      netlink_unicast+0x449/0x710
[ 5447.229061][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5447.229061][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5447.229061][   T73]      ___sys_sendmsg+0xee/0x170
[ 5447.229061][   T73]      __sys_sendmsg+0xcd/0x170
[ 5447.229061][   T73]      do_syscall_64+0xc6/0x1e0
[ 5447.229061][   T73] 
[ 5447.231492][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5447.231492][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5447.231492][   T73]      ipv6_find_idev+0x102/0x170
[ 5447.231492][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5447.231492][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5447.231492][   T73]      netlink_rcv_skb+0x130/0x360
[ 5447.231492][   T73]      netlink_unicast+0x449/0x710
[ 5447.231492][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5447.231492][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5447.231492][   T73]      ___sys_sendmsg+0xee/0x170
[ 5447.231492][   T73]      __sys_sendmsg+0xcd/0x170
[ 5447.231492][   T73]      do_syscall_64+0xc6/0x1e0
[ 5447.231492][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5447.231492][   T73] 
[ 5447.233393][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5447.233393][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5447.233393][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5447.233393][   T73]      ipv6_find_idev+0x102/0x170
[ 5447.233393][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5447.233393][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5447.233393][   T73]      netlink_rcv_skb+0x130/0x360
[ 5447.233393][   T73]      netlink_unicast+0x449/0x710
[ 5447.233393][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5447.233393][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5447.233393][   T73]      ___sys_sendmsg+0xee/0x170
[ 5447.233393][   T73]      __sys_sendmsg+0xcd/0x170
[ 5447.233393][   T73]      do_syscall_64+0xc6/0x1e0
[ 5447.233393][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5447.233393][   T73] 
[ 5447.235446][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5447.236259][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5447.236259][   T73]      netdev_get_by_index+0x5e/0x80
[ 5447.236259][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5447.236259][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5447.236259][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5447.236259][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5447.236259][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5447.236259][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5447.236259][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5447.236259][   T73]      addrconf_dad_begin+0x310/0x670
[ 5447.236259][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5447.236259][   T73]      process_one_work+0x84d/0x18a0
[ 5447.236259][   T73]      worker_thread+0x587/0xd30
[ 5447.236259][   T73]      kthread+0x28a/0x350
[ 5447.236259][   T73]      ret_from_fork+0x31/0x70
[ 5447.236259][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5447.236259][   T73] 
[ 5447.238405][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5447.238405][   T73]      netdev_get_by_index+0x5e/0x80
[ 5447.238405][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5447.238405][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5447.238405][   T73]      ip6_route_add+0x1c/0x140
[ 5447.238405][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5447.238405][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5447.238405][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5447.238405][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5447.238405][   T73]      netlink_rcv_skb+0x130/0x360
[ 5447.238405][   T73]      netlink_unicast+0x449/0x710
[ 5447.238405][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5447.238405][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5447.238405][   T73]      ___sys_sendmsg+0xee/0x170
[ 5447.238405][   T73]      __sys_sendmsg+0xcd/0x170
[ 5447.238405][   T73]      do_syscall_64+0xc6/0x1e0
[ 5447.238405][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5447.238405][   T73] 
[ 5447.240682][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5447.240682][   T73]      netdev_get_by_index+0x5e/0x80
[ 5447.240682][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5447.240682][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5447.240682][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5447.240682][   T73]      ipv6_add_addr+0x411/0x2000
[ 5447.240682][   T73]      inet6_addr_add+0x30e/0xa40
[ 5447.240682][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5447.240682][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5447.240682][   T73]      netlink_rcv_skb+0x130/0x360
[ 5447.240682][   T73]      netlink_unicast+0x449/0x710
[ 5447.240682][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5447.240682][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5447.240682][   T73]      ___sys_sendmsg+0xee/0x170
[ 5447.240682][   T73]      __sys_sendmsg+0xcd/0x170
[ 5447.240682][   T73]      do_syscall_64+0xc6/0x1e0
[ 5447.240682][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5447.240682][   T73] 
[ 5447.243186][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5447.243186][   T73]      netdev_get_by_index+0x5e/0x80
[ 5447.243186][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5447.243186][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5447.243186][   T73]      ip6_route_add+0x1c/0x140
[ 5447.243186][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5447.243186][   T73]      addrconf_add_dev+0xe2/0x170
[ 5447.243186][   T73]      inet6_addr_add+0x12f/0xa40
[ 5447.243186][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5447.243186][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5447.243186][   T73]      netlink_rcv_skb+0x130/0x360
[ 5447.243186][   T73]      netlink_unicast+0x449/0x710
[ 5447.243186][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5447.243186][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5447.243186][   T73]      ___sys_sendmsg+0xee/0x170
[ 5447.243186][   T73]      __sys_sendmsg+0xcd/0x170
[ 5447.243186][   T73]      do_syscall_64+0xc6/0x1e0
[ 5447.243186][   T73] 
[ 5447.245614][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5447.245614][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5447.245614][   T73]      ipv6_find_idev+0x102/0x170
[ 5447.245614][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5447.245614][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5447.245614][   T73]      netlink_rcv_skb+0x130/0x360
[ 5447.245614][   T73]      netlink_unicast+0x449/0x710
[ 5447.245614][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5447.245614][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5447.245614][   T73]      ___sys_sendmsg+0xee/0x170
[ 5447.245614][   T73]      __sys_sendmsg+0xcd/0x170
[ 5447.245614][   T73]      do_syscall_64+0xc6/0x1e0
[ 5447.245614][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5447.245614][   T73] 
[ 5447.247522][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5447.247522][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5447.247522][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5447.247522][   T73]      ipv6_find_idev+0x102/0x170
[ 5447.247522][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5447.247522][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5447.247522][   T73]      netlink_rcv_skb+0x130/0x360
[ 5447.247522][   T73]      netlink_unicast+0x449/0x710
[ 5447.247522][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5447.247522][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5447.247522][   T73]      ___sys_sendmsg+0xee/0x170
[ 5447.247522][   T73]      __sys_sendmsg+0xcd/0x170
[ 5447.247522][   T73]      do_syscall_64+0xc6/0x1e0
[ 5447.247522][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5447.247522][   T73] 
[ 5457.487777][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5457.488286][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5457.488286][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5457.488286][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5457.488286][   T73]      fib6_nh_init+0xa22/0x1580
[ 5457.488286][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5457.488286][   T73]      ip6_route_add+0x1c/0x140
[ 5457.488286][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5457.488286][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5457.488286][   T73]      netlink_rcv_skb+0x130/0x360
[ 5457.488286][   T73]      netlink_unicast+0x449/0x710
[ 5457.488286][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5457.488286][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5457.488286][   T73]      ___sys_sendmsg+0xee/0x170
[ 5457.488286][   T73]      __sys_sendmsg+0xcd/0x170
[ 5457.488286][   T73]      do_syscall_64+0xc6/0x1e0
[ 5457.488286][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5457.488286][   T73] 
[ 5457.490455][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5457.490455][   T73]      dst_init+0x84/0x4a0
[ 5457.490455][   T73]      dst_alloc+0x97/0x150
[ 5457.490455][   T73]      ip6_dst_alloc+0x23/0x90
[ 5457.490455][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5457.490455][   T73]      ip6_pol_route+0x56f/0x840
[ 5457.490455][   T73]      fib6_rule_lookup+0x456/0x630
[ 5457.490455][   T73]      ip6_route_input+0x59c/0xa50
[ 5457.490455][   T73]      ipv6_rcv+0x397/0x810
[ 5457.490455][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5457.490455][   T73]      process_backlog+0x101/0x620
[ 5457.490455][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5457.490455][   T73]      net_rx_action+0x495/0xbe0
[ 5457.490455][   T73]      __do_softirq+0x1b5/0x7f6
[ 5457.490455][   T73] 
[ 5457.492323][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5457.492323][   T73]      netdev_get_by_index+0x5e/0x80
[ 5457.492323][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5457.492323][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5457.492323][   T73]      ip6_route_add+0x1c/0x140
[ 5457.492323][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5457.492323][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5457.492323][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5457.492323][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5457.492323][   T73]      netlink_rcv_skb+0x130/0x360
[ 5457.492323][   T73]      netlink_unicast+0x449/0x710
[ 5457.492323][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5457.492323][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5457.492323][   T73]      ___sys_sendmsg+0xee/0x170
[ 5457.492323][   T73]      __sys_sendmsg+0xcd/0x170
[ 5457.492323][   T73]      do_syscall_64+0xc6/0x1e0
[ 5457.492323][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5457.492323][   T73] 
[ 5457.494578][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5457.494578][   T73]      netdev_get_by_index+0x5e/0x80
[ 5457.494578][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5457.494578][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5457.494578][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5457.494578][   T73]      ipv6_add_addr+0x411/0x2000
[ 5457.494578][   T73]      inet6_addr_add+0x30e/0xa40
[ 5457.494578][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5457.494578][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5457.494578][   T73]      netlink_rcv_skb+0x130/0x360
[ 5457.494578][   T73]      netlink_unicast+0x449/0x710
[ 5457.494578][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5457.494578][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5457.494578][   T73]      ___sys_sendmsg+0xee/0x170
[ 5457.494578][   T73]      __sys_sendmsg+0xcd/0x170
[ 5457.494578][   T73]      do_syscall_64+0xc6/0x1e0
[ 5457.494578][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5457.494578][   T73] 
[ 5457.496844][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5457.496844][   T73]      netdev_get_by_index+0x5e/0x80
[ 5457.496844][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5457.496844][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5457.496844][   T73]      ip6_route_add+0x1c/0x140
[ 5457.496844][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5457.496844][   T73]      addrconf_add_dev+0xe2/0x170
[ 5457.496844][   T73]      inet6_addr_add+0x12f/0xa40
[ 5457.496844][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5457.496844][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5457.496844][   T73]      netlink_rcv_skb+0x130/0x360
[ 5457.496844][   T73]      netlink_unicast+0x449/0x710
[ 5457.496844][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5457.496844][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5457.496844][   T73]      ___sys_sendmsg+0xee/0x170
[ 5457.496844][   T73]      __sys_sendmsg+0xcd/0x170
[ 5457.496844][   T73]      do_syscall_64+0xc6/0x1e0
[ 5457.496844][   T73] 
[ 5457.499052][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5457.499052][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5457.499052][   T73]      ipv6_find_idev+0x102/0x170
[ 5457.499052][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5457.499052][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5457.499052][   T73]      netlink_rcv_skb+0x130/0x360
[ 5457.499052][   T73]      netlink_unicast+0x449/0x710
[ 5457.499052][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5457.499052][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5457.499052][   T73]      ___sys_sendmsg+0xee/0x170
[ 5457.499052][   T73]      __sys_sendmsg+0xcd/0x170
[ 5457.499052][   T73]      do_syscall_64+0xc6/0x1e0
[ 5457.499052][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5457.499052][   T73] 
[ 5457.500787][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5457.500787][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5457.500787][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5457.500787][   T73]      ipv6_find_idev+0x102/0x170
[ 5457.500787][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5457.500787][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5457.500787][   T73]      netlink_rcv_skb+0x130/0x360
[ 5457.500787][   T73]      netlink_unicast+0x449/0x710
[ 5457.500787][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5457.500787][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5457.500787][   T73]      ___sys_sendmsg+0xee/0x170
[ 5457.500787][   T73]      __sys_sendmsg+0xcd/0x170
[ 5457.500787][   T73]      do_syscall_64+0xc6/0x1e0
[ 5457.500787][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5457.500787][   T73] 
[ 5457.502690][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5457.503008][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5457.503008][   T73]      netdev_get_by_index+0x5e/0x80
[ 5457.503008][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5457.503008][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5457.503008][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5457.503008][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5457.503008][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5457.503008][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5457.503008][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5457.503008][   T73]      addrconf_dad_begin+0x310/0x670
[ 5457.503008][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5457.503008][   T73]      process_one_work+0x84d/0x18a0
[ 5457.503008][   T73]      worker_thread+0x587/0xd30
[ 5457.503008][   T73]      kthread+0x28a/0x350
[ 5457.503008][   T73]      ret_from_fork+0x31/0x70
[ 5457.503008][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5457.503008][   T73] 
[ 5457.505164][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5457.505164][   T73]      netdev_get_by_index+0x5e/0x80
[ 5457.505164][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5457.505164][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5457.505164][   T73]      ip6_route_add+0x1c/0x140
[ 5457.505164][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5457.505164][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5457.505164][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5457.505164][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5457.505164][   T73]      netlink_rcv_skb+0x130/0x360
[ 5457.505164][   T73]      netlink_unicast+0x449/0x710
[ 5457.505164][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5457.505164][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5457.505164][   T73]      ___sys_sendmsg+0xee/0x170
[ 5457.505164][   T73]      __sys_sendmsg+0xcd/0x170
[ 5457.505164][   T73]      do_syscall_64+0xc6/0x1e0
[ 5457.505164][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5457.505164][   T73] 
[ 5457.507386][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5457.507386][   T73]      netdev_get_by_index+0x5e/0x80
[ 5457.507386][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5457.507386][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5457.507386][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5457.507386][   T73]      ipv6_add_addr+0x411/0x2000
[ 5457.507386][   T73]      inet6_addr_add+0x30e/0xa40
[ 5457.507386][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5457.507386][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5457.507386][   T73]      netlink_rcv_skb+0x130/0x360
[ 5457.507386][   T73]      netlink_unicast+0x449/0x710
[ 5457.507386][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5457.507386][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5457.507386][   T73]      ___sys_sendmsg+0xee/0x170
[ 5457.507386][   T73]      __sys_sendmsg+0xcd/0x170
[ 5457.507386][   T73]      do_syscall_64+0xc6/0x1e0
[ 5457.507386][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5457.507386][   T73] 
[ 5457.509626][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5457.509626][   T73]      netdev_get_by_index+0x5e/0x80
[ 5457.509626][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5457.509626][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5457.509626][   T73]      ip6_route_add+0x1c/0x140
[ 5457.509626][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5457.509626][   T73]      addrconf_add_dev+0xe2/0x170
[ 5457.509626][   T73]      inet6_addr_add+0x12f/0xa40
[ 5457.509626][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5457.509626][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5457.509626][   T73]      netlink_rcv_skb+0x130/0x360
[ 5457.509626][   T73]      netlink_unicast+0x449/0x710
[ 5457.509626][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5457.509626][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5457.509626][   T73]      ___sys_sendmsg+0xee/0x170
[ 5457.509626][   T73]      __sys_sendmsg+0xcd/0x170
[ 5457.509626][   T73]      do_syscall_64+0xc6/0x1e0
[ 5457.509626][   T73] 
[ 5457.511820][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5457.511820][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5457.511820][   T73]      ipv6_find_idev+0x102/0x170
[ 5457.511820][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5457.511820][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5457.511820][   T73]      netlink_rcv_skb+0x130/0x360
[ 5457.511820][   T73]      netlink_unicast+0x449/0x710
[ 5457.511820][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5457.511820][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5457.511820][   T73]      ___sys_sendmsg+0xee/0x170
[ 5457.511820][   T73]      __sys_sendmsg+0xcd/0x170
[ 5457.511820][   T73]      do_syscall_64+0xc6/0x1e0
[ 5457.511820][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5457.511820][   T73] 
[ 5457.513538][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5457.513538][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5457.513538][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5457.513538][   T73]      ipv6_find_idev+0x102/0x170
[ 5457.513538][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5457.513538][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5457.513538][   T73]      netlink_rcv_skb+0x130/0x360
[ 5457.513538][   T73]      netlink_unicast+0x449/0x710
[ 5457.513538][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5457.513538][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5457.513538][   T73]      ___sys_sendmsg+0xee/0x170
[ 5457.513538][   T73]      __sys_sendmsg+0xcd/0x170
[ 5457.513538][   T73]      do_syscall_64+0xc6/0x1e0
[ 5457.513538][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5457.513538][   T73] 
[ 5457.515417][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5457.515728][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5457.515728][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5457.515728][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5457.515728][   T73]      fib6_nh_init+0xa22/0x1580
[ 5457.515728][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5457.515728][   T73]      ip6_route_add+0x1c/0x140
[ 5457.515728][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5457.515728][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5457.515728][   T73]      netlink_rcv_skb+0x130/0x360
[ 5457.515728][   T73]      netlink_unicast+0x449/0x710
[ 5457.515728][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5457.515728][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5457.515728][   T73]      ___sys_sendmsg+0xee/0x170
[ 5457.515728][   T73]      __sys_sendmsg+0xcd/0x170
[ 5457.515728][   T73]      do_syscall_64+0xc6/0x1e0
[ 5457.515728][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5457.515728][   T73] 
[ 5457.518047][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5457.518047][   T73]      dst_init+0x84/0x4a0
[ 5457.518047][   T73]      dst_alloc+0x97/0x150
[ 5457.518047][   T73]      ip6_dst_alloc+0x23/0x90
[ 5457.518047][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5457.518047][   T73]      ip6_pol_route+0x56f/0x840
[ 5457.518047][   T73]      fib6_rule_lookup+0x456/0x630
[ 5457.518047][   T73]      ip6_route_input+0x59c/0xa50
[ 5457.518047][   T73]      ipv6_rcv+0x397/0x810
[ 5457.518047][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5457.518047][   T73]      process_backlog+0x101/0x620
[ 5457.518047][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5457.518047][   T73]      net_rx_action+0x495/0xbe0
[ 5457.518047][   T73]      __do_softirq+0x1b5/0x7f6
[ 5457.518047][   T73] 
[ 5457.520125][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5457.520125][   T73]      netdev_get_by_index+0x5e/0x80
[ 5457.520125][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5457.520125][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5457.520125][   T73]      ip6_route_add+0x1c/0x140
[ 5457.520125][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5457.520125][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5457.520125][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5457.520125][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5457.520125][   T73]      netlink_rcv_skb+0x130/0x360
[ 5457.520125][   T73]      netlink_unicast+0x449/0x710
[ 5457.520125][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5457.520125][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5457.520125][   T73]      ___sys_sendmsg+0xee/0x170
[ 5457.520125][   T73]      __sys_sendmsg+0xcd/0x170
[ 5457.520125][   T73]      do_syscall_64+0xc6/0x1e0
[ 5457.520125][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5457.520125][   T73] 
[ 5457.522615][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5457.522615][   T73]      netdev_get_by_index+0x5e/0x80
[ 5457.522615][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5457.522615][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5457.522615][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5457.522615][   T73]      ipv6_add_addr+0x411/0x2000
[ 5457.522615][   T73]      inet6_addr_add+0x30e/0xa40
[ 5457.522615][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5457.522615][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5457.522615][   T73]      netlink_rcv_skb+0x130/0x360
[ 5457.522615][   T73]      netlink_unicast+0x449/0x710
[ 5457.522615][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5457.522615][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5457.522615][   T73]      ___sys_sendmsg+0xee/0x170
[ 5457.522615][   T73]      __sys_sendmsg+0xcd/0x170
[ 5457.522615][   T73]      do_syscall_64+0xc6/0x1e0
[ 5457.522615][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5457.522615][   T73] 
[ 5457.525038][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5457.525038][   T73]      netdev_get_by_index+0x5e/0x80
[ 5457.525038][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5457.525038][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5457.525038][   T73]      ip6_route_add+0x1c/0x140
[ 5457.525038][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5457.525038][   T73]      addrconf_add_dev+0xe2/0x170
[ 5457.525038][   T73]      inet6_addr_add+0x12f/0xa40
[ 5457.525038][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5457.525038][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5457.525038][   T73]      netlink_rcv_skb+0x130/0x360
[ 5457.525038][   T73]      netlink_unicast+0x449/0x710
[ 5457.525038][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5457.525038][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5457.525038][   T73]      ___sys_sendmsg+0xee/0x170
[ 5457.525038][   T73]      __sys_sendmsg+0xcd/0x170
[ 5457.525038][   T73]      do_syscall_64+0xc6/0x1e0
[ 5457.525038][   T73] 
[ 5457.527511][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5457.527511][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5457.527511][   T73]      ipv6_find_idev+0x102/0x170
[ 5457.527511][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5457.527511][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5457.527511][   T73]      netlink_rcv_skb+0x130/0x360
[ 5457.527511][   T73]      netlink_unicast+0x449/0x710
[ 5457.527511][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5457.527511][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5457.527511][   T73]      ___sys_sendmsg+0xee/0x170
[ 5457.527511][   T73]      __sys_sendmsg+0xcd/0x170
[ 5457.527511][   T73]      do_syscall_64+0xc6/0x1e0
[ 5457.527511][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5457.527511][   T73] 
[ 5457.529435][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5457.529435][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5457.529435][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5457.529435][   T73]      ipv6_find_idev+0x102/0x170
[ 5457.529435][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5457.529435][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5457.529435][   T73]      netlink_rcv_skb+0x130/0x360
[ 5457.529435][   T73]      netlink_unicast+0x449/0x710
[ 5457.529435][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5457.529435][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5457.529435][   T73]      ___sys_sendmsg+0xee/0x170
[ 5457.529435][   T73]      __sys_sendmsg+0xcd/0x170
[ 5457.529435][   T73]      do_syscall_64+0xc6/0x1e0
[ 5457.529435][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5457.529435][   T73] 
[ 5457.531580][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5457.532408][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5457.532408][   T73]      netdev_get_by_index+0x5e/0x80
[ 5457.532408][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5457.532408][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5457.532408][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5457.532408][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5457.532408][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5457.532408][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5457.532408][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5457.532408][   T73]      addrconf_dad_begin+0x310/0x670
[ 5457.532408][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5457.532408][   T73]      process_one_work+0x84d/0x18a0
[ 5457.532408][   T73]      worker_thread+0x587/0xd30
[ 5457.532408][   T73]      kthread+0x28a/0x350
[ 5457.532408][   T73]      ret_from_fork+0x31/0x70
[ 5457.532408][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5457.532408][   T73] 
[ 5457.534580][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5457.534580][   T73]      netdev_get_by_index+0x5e/0x80
[ 5457.534580][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5457.534580][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5457.534580][   T73]      ip6_route_add+0x1c/0x140
[ 5457.534580][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5457.534580][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5457.534580][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5457.534580][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5457.534580][   T73]      netlink_rcv_skb+0x130/0x360
[ 5457.534580][   T73]      netlink_unicast+0x449/0x710
[ 5457.534580][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5457.534580][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5457.534580][   T73]      ___sys_sendmsg+0xee/0x170
[ 5457.534580][   T73]      __sys_sendmsg+0xcd/0x170
[ 5457.534580][   T73]      do_syscall_64+0xc6/0x1e0
[ 5457.534580][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5457.534580][   T73] 
[ 5457.536813][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5457.536813][   T73]      netdev_get_by_index+0x5e/0x80
[ 5457.536813][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5457.536813][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5457.536813][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5457.536813][   T73]      ipv6_add_addr+0x411/0x2000
[ 5457.536813][   T73]      inet6_addr_add+0x30e/0xa40
[ 5457.536813][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5457.536813][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5457.536813][   T73]      netlink_rcv_skb+0x130/0x360
[ 5457.536813][   T73]      netlink_unicast+0x449/0x710
[ 5457.536813][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5457.536813][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5457.536813][   T73]      ___sys_sendmsg+0xee/0x170
[ 5457.536813][   T73]      __sys_sendmsg+0xcd/0x170
[ 5457.536813][   T73]      do_syscall_64+0xc6/0x1e0
[ 5457.536813][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5457.536813][   T73] 
[ 5457.539286][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5457.539286][   T73]      netdev_get_by_index+0x5e/0x80
[ 5457.539286][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5457.539286][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5457.539286][   T73]      ip6_route_add+0x1c/0x140
[ 5457.539286][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5457.539286][   T73]      addrconf_add_dev+0xe2/0x170
[ 5457.539286][   T73]      inet6_addr_add+0x12f/0xa40
[ 5457.539286][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5457.539286][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5457.539286][   T73]      netlink_rcv_skb+0x130/0x360
[ 5457.539286][   T73]      netlink_unicast+0x449/0x710
[ 5457.539286][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5457.539286][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5457.539286][   T73]      ___sys_sendmsg+0xee/0x170
[ 5457.539286][   T73]      __sys_sendmsg+0xcd/0x170
[ 5457.539286][   T73]      do_syscall_64+0xc6/0x1e0
[ 5457.539286][   T73] 
[ 5457.541738][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5457.541738][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5457.541738][   T73]      ipv6_find_idev+0x102/0x170
[ 5457.541738][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5457.541738][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5457.541738][   T73]      netlink_rcv_skb+0x130/0x360
[ 5457.541738][   T73]      netlink_unicast+0x449/0x710
[ 5457.541738][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5457.541738][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5457.541738][   T73]      ___sys_sendmsg+0xee/0x170
[ 5457.541738][   T73]      __sys_sendmsg+0xcd/0x170
[ 5457.541738][   T73]      do_syscall_64+0xc6/0x1e0
[ 5457.541738][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5457.541738][   T73] 
[ 5457.543632][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5457.543632][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5457.543632][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5457.543632][   T73]      ipv6_find_idev+0x102/0x170
[ 5457.543632][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5457.543632][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5457.543632][   T73]      netlink_rcv_skb+0x130/0x360
[ 5457.543632][   T73]      netlink_unicast+0x449/0x710
[ 5457.543632][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5457.543632][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5457.543632][   T73]      ___sys_sendmsg+0xee/0x170
[ 5457.543632][   T73]      __sys_sendmsg+0xcd/0x170
[ 5457.543632][   T73]      do_syscall_64+0xc6/0x1e0
[ 5457.543632][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5457.543632][   T73] 
[ 5467.615802][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5467.616328][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5467.616328][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5467.616328][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5467.616328][   T73]      fib6_nh_init+0xa22/0x1580
[ 5467.616328][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5467.616328][   T73]      ip6_route_add+0x1c/0x140
[ 5467.616328][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5467.616328][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5467.616328][   T73]      netlink_rcv_skb+0x130/0x360
[ 5467.616328][   T73]      netlink_unicast+0x449/0x710
[ 5467.616328][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5467.616328][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5467.616328][   T73]      ___sys_sendmsg+0xee/0x170
[ 5467.616328][   T73]      __sys_sendmsg+0xcd/0x170
[ 5467.616328][   T73]      do_syscall_64+0xc6/0x1e0
[ 5467.616328][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5467.616328][   T73] 
[ 5467.618473][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5467.618473][   T73]      dst_init+0x84/0x4a0
[ 5467.618473][   T73]      dst_alloc+0x97/0x150
[ 5467.618473][   T73]      ip6_dst_alloc+0x23/0x90
[ 5467.618473][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5467.618473][   T73]      ip6_pol_route+0x56f/0x840
[ 5467.618473][   T73]      fib6_rule_lookup+0x456/0x630
[ 5467.618473][   T73]      ip6_route_input+0x59c/0xa50
[ 5467.618473][   T73]      ipv6_rcv+0x397/0x810
[ 5467.618473][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5467.618473][   T73]      process_backlog+0x101/0x620
[ 5467.618473][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5467.618473][   T73]      net_rx_action+0x495/0xbe0
[ 5467.618473][   T73]      __do_softirq+0x1b5/0x7f6
[ 5467.618473][   T73] 
[ 5467.620323][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5467.620323][   T73]      netdev_get_by_index+0x5e/0x80
[ 5467.620323][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5467.620323][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5467.620323][   T73]      ip6_route_add+0x1c/0x140
[ 5467.620323][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5467.620323][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5467.620323][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5467.620323][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5467.620323][   T73]      netlink_rcv_skb+0x130/0x360
[ 5467.620323][   T73]      netlink_unicast+0x449/0x710
[ 5467.620323][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5467.620323][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5467.620323][   T73]      ___sys_sendmsg+0xee/0x170
[ 5467.620323][   T73]      __sys_sendmsg+0xcd/0x170
[ 5467.620323][   T73]      do_syscall_64+0xc6/0x1e0
[ 5467.620323][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5467.620323][   T73] 
[ 5467.622550][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5467.622550][   T73]      netdev_get_by_index+0x5e/0x80
[ 5467.622550][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5467.622550][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5467.622550][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5467.622550][   T73]      ipv6_add_addr+0x411/0x2000
[ 5467.622550][   T73]      inet6_addr_add+0x30e/0xa40
[ 5467.622550][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5467.622550][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5467.622550][   T73]      netlink_rcv_skb+0x130/0x360
[ 5467.622550][   T73]      netlink_unicast+0x449/0x710
[ 5467.622550][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5467.622550][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5467.622550][   T73]      ___sys_sendmsg+0xee/0x170
[ 5467.622550][   T73]      __sys_sendmsg+0xcd/0x170
[ 5467.622550][   T73]      do_syscall_64+0xc6/0x1e0
[ 5467.622550][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5467.622550][   T73] 
[ 5467.624785][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5467.624785][   T73]      netdev_get_by_index+0x5e/0x80
[ 5467.624785][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5467.624785][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5467.624785][   T73]      ip6_route_add+0x1c/0x140
[ 5467.624785][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5467.624785][   T73]      addrconf_add_dev+0xe2/0x170
[ 5467.624785][   T73]      inet6_addr_add+0x12f/0xa40
[ 5467.624785][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5467.624785][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5467.624785][   T73]      netlink_rcv_skb+0x130/0x360
[ 5467.624785][   T73]      netlink_unicast+0x449/0x710
[ 5467.624785][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5467.624785][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5467.624785][   T73]      ___sys_sendmsg+0xee/0x170
[ 5467.624785][   T73]      __sys_sendmsg+0xcd/0x170
[ 5467.624785][   T73]      do_syscall_64+0xc6/0x1e0
[ 5467.624785][   T73] 
[ 5467.627027][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5467.627027][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5467.627027][   T73]      ipv6_find_idev+0x102/0x170
[ 5467.627027][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5467.627027][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5467.627027][   T73]      netlink_rcv_skb+0x130/0x360
[ 5467.627027][   T73]      netlink_unicast+0x449/0x710
[ 5467.627027][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5467.627027][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5467.627027][   T73]      ___sys_sendmsg+0xee/0x170
[ 5467.627027][   T73]      __sys_sendmsg+0xcd/0x170
[ 5467.627027][   T73]      do_syscall_64+0xc6/0x1e0
[ 5467.627027][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5467.627027][   T73] 
[ 5467.628762][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5467.628762][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5467.628762][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5467.628762][   T73]      ipv6_find_idev+0x102/0x170
[ 5467.628762][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5467.628762][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5467.628762][   T73]      netlink_rcv_skb+0x130/0x360
[ 5467.628762][   T73]      netlink_unicast+0x449/0x710
[ 5467.628762][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5467.628762][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5467.628762][   T73]      ___sys_sendmsg+0xee/0x170
[ 5467.628762][   T73]      __sys_sendmsg+0xcd/0x170
[ 5467.628762][   T73]      do_syscall_64+0xc6/0x1e0
[ 5467.628762][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5467.628762][   T73] 
[ 5467.630679][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5467.630995][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5467.630995][   T73]      netdev_get_by_index+0x5e/0x80
[ 5467.630995][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5467.630995][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5467.630995][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5467.630995][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5467.630995][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5467.630995][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5467.630995][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5467.630995][   T73]      addrconf_dad_begin+0x310/0x670
[ 5467.630995][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5467.630995][   T73]      process_one_work+0x84d/0x18a0
[ 5467.630995][   T73]      worker_thread+0x587/0xd30
[ 5467.630995][   T73]      kthread+0x28a/0x350
[ 5467.630995][   T73]      ret_from_fork+0x31/0x70
[ 5467.630995][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5467.630995][   T73] 
[ 5467.633154][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5467.633154][   T73]      netdev_get_by_index+0x5e/0x80
[ 5467.633154][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5467.633154][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5467.633154][   T73]      ip6_route_add+0x1c/0x140
[ 5467.633154][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5467.633154][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5467.633154][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5467.633154][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5467.633154][   T73]      netlink_rcv_skb+0x130/0x360
[ 5467.633154][   T73]      netlink_unicast+0x449/0x710
[ 5467.633154][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5467.633154][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5467.633154][   T73]      ___sys_sendmsg+0xee/0x170
[ 5467.633154][   T73]      __sys_sendmsg+0xcd/0x170
[ 5467.633154][   T73]      do_syscall_64+0xc6/0x1e0
[ 5467.633154][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5467.633154][   T73] 
[ 5467.635411][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5467.635411][   T73]      netdev_get_by_index+0x5e/0x80
[ 5467.635411][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5467.635411][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5467.635411][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5467.635411][   T73]      ipv6_add_addr+0x411/0x2000
[ 5467.635411][   T73]      inet6_addr_add+0x30e/0xa40
[ 5467.635411][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5467.635411][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5467.635411][   T73]      netlink_rcv_skb+0x130/0x360
[ 5467.635411][   T73]      netlink_unicast+0x449/0x710
[ 5467.635411][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5467.635411][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5467.635411][   T73]      ___sys_sendmsg+0xee/0x170
[ 5467.635411][   T73]      __sys_sendmsg+0xcd/0x170
[ 5467.635411][   T73]      do_syscall_64+0xc6/0x1e0
[ 5467.635411][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5467.635411][   T73] 
[ 5467.637660][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5467.637660][   T73]      netdev_get_by_index+0x5e/0x80
[ 5467.637660][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5467.637660][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5467.637660][   T73]      ip6_route_add+0x1c/0x140
[ 5467.637660][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5467.637660][   T73]      addrconf_add_dev+0xe2/0x170
[ 5467.637660][   T73]      inet6_addr_add+0x12f/0xa40
[ 5467.637660][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5467.637660][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5467.637660][   T73]      netlink_rcv_skb+0x130/0x360
[ 5467.637660][   T73]      netlink_unicast+0x449/0x710
[ 5467.637660][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5467.637660][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5467.637660][   T73]      ___sys_sendmsg+0xee/0x170
[ 5467.637660][   T73]      __sys_sendmsg+0xcd/0x170
[ 5467.637660][   T73]      do_syscall_64+0xc6/0x1e0
[ 5467.637660][   T73] 
[ 5467.639875][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5467.639875][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5467.639875][   T73]      ipv6_find_idev+0x102/0x170
[ 5467.639875][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5467.639875][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5467.639875][   T73]      netlink_rcv_skb+0x130/0x360
[ 5467.639875][   T73]      netlink_unicast+0x449/0x710
[ 5467.639875][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5467.639875][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5467.639875][   T73]      ___sys_sendmsg+0xee/0x170
[ 5467.639875][   T73]      __sys_sendmsg+0xcd/0x170
[ 5467.639875][   T73]      do_syscall_64+0xc6/0x1e0
[ 5467.639875][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5467.639875][   T73] 
[ 5467.641610][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5467.641610][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5467.641610][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5467.641610][   T73]      ipv6_find_idev+0x102/0x170
[ 5467.641610][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5467.641610][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5467.641610][   T73]      netlink_rcv_skb+0x130/0x360
[ 5467.641610][   T73]      netlink_unicast+0x449/0x710
[ 5467.641610][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5467.641610][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5467.641610][   T73]      ___sys_sendmsg+0xee/0x170
[ 5467.641610][   T73]      __sys_sendmsg+0xcd/0x170
[ 5467.641610][   T73]      do_syscall_64+0xc6/0x1e0
[ 5467.641610][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5467.641610][   T73] 
[ 5467.643509][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5467.643824][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5467.643824][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5467.643824][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5467.643824][   T73]      fib6_nh_init+0xa22/0x1580
[ 5467.643824][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5467.643824][   T73]      ip6_route_add+0x1c/0x140
[ 5467.643824][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5467.643824][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5467.643824][   T73]      netlink_rcv_skb+0x130/0x360
[ 5467.643824][   T73]      netlink_unicast+0x449/0x710
[ 5467.643824][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5467.643824][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5467.643824][   T73]      ___sys_sendmsg+0xee/0x170
[ 5467.643824][   T73]      __sys_sendmsg+0xcd/0x170
[ 5467.643824][   T73]      do_syscall_64+0xc6/0x1e0
[ 5467.643824][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5467.643824][   T73] 
[ 5467.646136][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5467.646136][   T73]      dst_init+0x84/0x4a0
[ 5467.646136][   T73]      dst_alloc+0x97/0x150
[ 5467.646136][   T73]      ip6_dst_alloc+0x23/0x90
[ 5467.646136][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5467.646136][   T73]      ip6_pol_route+0x56f/0x840
[ 5467.646136][   T73]      fib6_rule_lookup+0x456/0x630
[ 5467.646136][   T73]      ip6_route_input+0x59c/0xa50
[ 5467.646136][   T73]      ipv6_rcv+0x397/0x810
[ 5467.646136][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5467.646136][   T73]      process_backlog+0x101/0x620
[ 5467.646136][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5467.646136][   T73]      net_rx_action+0x495/0xbe0
[ 5467.646136][   T73]      __do_softirq+0x1b5/0x7f6
[ 5467.646136][   T73] 
[ 5467.648152][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5467.648152][   T73]      netdev_get_by_index+0x5e/0x80
[ 5467.648152][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5467.648152][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5467.648152][   T73]      ip6_route_add+0x1c/0x140
[ 5467.648152][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5467.648152][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5467.648152][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5467.648152][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5467.648152][   T73]      netlink_rcv_skb+0x130/0x360
[ 5467.648152][   T73]      netlink_unicast+0x449/0x710
[ 5467.648152][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5467.648152][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5467.648152][   T73]      ___sys_sendmsg+0xee/0x170
[ 5467.648152][   T73]      __sys_sendmsg+0xcd/0x170
[ 5467.648152][   T73]      do_syscall_64+0xc6/0x1e0
[ 5467.648152][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5467.648152][   T73] 
[ 5467.650647][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5467.650647][   T73]      netdev_get_by_index+0x5e/0x80
[ 5467.650647][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5467.650647][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5467.650647][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5467.650647][   T73]      ipv6_add_addr+0x411/0x2000
[ 5467.650647][   T73]      inet6_addr_add+0x30e/0xa40
[ 5467.650647][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5467.650647][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5467.650647][   T73]      netlink_rcv_skb+0x130/0x360
[ 5467.650647][   T73]      netlink_unicast+0x449/0x710
[ 5467.650647][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5467.650647][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5467.650647][   T73]      ___sys_sendmsg+0xee/0x170
[ 5467.650647][   T73]      __sys_sendmsg+0xcd/0x170
[ 5467.650647][   T73]      do_syscall_64+0xc6/0x1e0
[ 5467.650647][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5467.650647][   T73] 
[ 5467.653057][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5467.653057][   T73]      netdev_get_by_index+0x5e/0x80
[ 5467.653057][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5467.653057][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5467.653057][   T73]      ip6_route_add+0x1c/0x140
[ 5467.653057][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5467.653057][   T73]      addrconf_add_dev+0xe2/0x170
[ 5467.653057][   T73]      inet6_addr_add+0x12f/0xa40
[ 5467.653057][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5467.653057][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5467.653057][   T73]      netlink_rcv_skb+0x130/0x360
[ 5467.653057][   T73]      netlink_unicast+0x449/0x710
[ 5467.653057][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5467.653057][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5467.653057][   T73]      ___sys_sendmsg+0xee/0x170
[ 5467.653057][   T73]      __sys_sendmsg+0xcd/0x170
[ 5467.653057][   T73]      do_syscall_64+0xc6/0x1e0
[ 5467.653057][   T73] 
[ 5467.655570][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5467.655570][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5467.655570][   T73]      ipv6_find_idev+0x102/0x170
[ 5467.655570][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5467.655570][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5467.655570][   T73]      netlink_rcv_skb+0x130/0x360
[ 5467.655570][   T73]      netlink_unicast+0x449/0x710
[ 5467.655570][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5467.655570][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5467.655570][   T73]      ___sys_sendmsg+0xee/0x170
[ 5467.655570][   T73]      __sys_sendmsg+0xcd/0x170
[ 5467.655570][   T73]      do_syscall_64+0xc6/0x1e0
[ 5467.655570][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5467.655570][   T73] 
[ 5467.657469][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5467.657469][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5467.657469][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5467.657469][   T73]      ipv6_find_idev+0x102/0x170
[ 5467.657469][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5467.657469][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5467.657469][   T73]      netlink_rcv_skb+0x130/0x360
[ 5467.657469][   T73]      netlink_unicast+0x449/0x710
[ 5467.657469][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5467.657469][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5467.657469][   T73]      ___sys_sendmsg+0xee/0x170
[ 5467.657469][   T73]      __sys_sendmsg+0xcd/0x170
[ 5467.657469][   T73]      do_syscall_64+0xc6/0x1e0
[ 5467.657469][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5467.657469][   T73] 
[ 5467.659558][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5467.660380][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5467.660380][   T73]      netdev_get_by_index+0x5e/0x80
[ 5467.660380][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5467.660380][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5467.660380][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5467.660380][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5467.660380][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5467.660380][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5467.660380][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5467.660380][   T73]      addrconf_dad_begin+0x310/0x670
[ 5467.660380][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5467.660380][   T73]      process_one_work+0x84d/0x18a0
[ 5467.660380][   T73]      worker_thread+0x587/0xd30
[ 5467.660380][   T73]      kthread+0x28a/0x350
[ 5467.660380][   T73]      ret_from_fork+0x31/0x70
[ 5467.660380][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5467.660380][   T73] 
[ 5467.662510][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5467.662510][   T73]      netdev_get_by_index+0x5e/0x80
[ 5467.662510][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5467.662510][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5467.662510][   T73]      ip6_route_add+0x1c/0x140
[ 5467.662510][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5467.662510][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5467.662510][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5467.662510][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5467.662510][   T73]      netlink_rcv_skb+0x130/0x360
[ 5467.662510][   T73]      netlink_unicast+0x449/0x710
[ 5467.662510][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5467.662510][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5467.662510][   T73]      ___sys_sendmsg+0xee/0x170
[ 5467.662510][   T73]      __sys_sendmsg+0xcd/0x170
[ 5467.662510][   T73]      do_syscall_64+0xc6/0x1e0
[ 5467.662510][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5467.662510][   T73] 
[ 5467.664728][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5467.664728][   T73]      netdev_get_by_index+0x5e/0x80
[ 5467.664728][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5467.664728][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5467.664728][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5467.664728][   T73]      ipv6_add_addr+0x411/0x2000
[ 5467.664728][   T73]      inet6_addr_add+0x30e/0xa40
[ 5467.664728][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5467.664728][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5467.664728][   T73]      netlink_rcv_skb+0x130/0x360
[ 5467.664728][   T73]      netlink_unicast+0x449/0x710
[ 5467.664728][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5467.664728][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5467.664728][   T73]      ___sys_sendmsg+0xee/0x170
[ 5467.664728][   T73]      __sys_sendmsg+0xcd/0x170
[ 5467.664728][   T73]      do_syscall_64+0xc6/0x1e0
[ 5467.664728][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5467.664728][   T73] 
[ 5467.667127][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5467.667127][   T73]      netdev_get_by_index+0x5e/0x80
[ 5467.667127][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5467.667127][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5467.667127][   T73]      ip6_route_add+0x1c/0x140
[ 5467.667127][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5467.667127][   T73]      addrconf_add_dev+0xe2/0x170
[ 5467.667127][   T73]      inet6_addr_add+0x12f/0xa40
[ 5467.667127][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5467.667127][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5467.667127][   T73]      netlink_rcv_skb+0x130/0x360
[ 5467.667127][   T73]      netlink_unicast+0x449/0x710
[ 5467.667127][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5467.667127][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5467.667127][   T73]      ___sys_sendmsg+0xee/0x170
[ 5467.667127][   T73]      __sys_sendmsg+0xcd/0x170
[ 5467.667127][   T73]      do_syscall_64+0xc6/0x1e0
[ 5467.667127][   T73] 
[ 5467.669647][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5467.669647][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5467.669647][   T73]      ipv6_find_idev+0x102/0x170
[ 5467.669647][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5467.669647][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5467.669647][   T73]      netlink_rcv_skb+0x130/0x360
[ 5467.669647][   T73]      netlink_unicast+0x449/0x710
[ 5467.669647][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5467.669647][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5467.669647][   T73]      ___sys_sendmsg+0xee/0x170
[ 5467.669647][   T73]      __sys_sendmsg+0xcd/0x170
[ 5467.669647][   T73]      do_syscall_64+0xc6/0x1e0
[ 5467.669647][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5467.669647][   T73] 
[ 5467.671547][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5467.671547][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5467.671547][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5467.671547][   T73]      ipv6_find_idev+0x102/0x170
[ 5467.671547][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5467.671547][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5467.671547][   T73]      netlink_rcv_skb+0x130/0x360
[ 5467.671547][   T73]      netlink_unicast+0x449/0x710
[ 5467.671547][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5467.671547][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5467.671547][   T73]      ___sys_sendmsg+0xee/0x170
[ 5467.671547][   T73]      __sys_sendmsg+0xcd/0x170
[ 5467.671547][   T73]      do_syscall_64+0xc6/0x1e0
[ 5467.671547][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5467.671547][   T73] 
[ 5477.759786][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5477.760292][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5477.760292][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5477.760292][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5477.760292][   T73]      fib6_nh_init+0xa22/0x1580
[ 5477.760292][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5477.760292][   T73]      ip6_route_add+0x1c/0x140
[ 5477.760292][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5477.760292][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5477.760292][   T73]      netlink_rcv_skb+0x130/0x360
[ 5477.760292][   T73]      netlink_unicast+0x449/0x710
[ 5477.760292][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5477.760292][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5477.760292][   T73]      ___sys_sendmsg+0xee/0x170
[ 5477.760292][   T73]      __sys_sendmsg+0xcd/0x170
[ 5477.760292][   T73]      do_syscall_64+0xc6/0x1e0
[ 5477.760292][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5477.760292][   T73] 
[ 5477.762408][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5477.762408][   T73]      dst_init+0x84/0x4a0
[ 5477.762408][   T73]      dst_alloc+0x97/0x150
[ 5477.762408][   T73]      ip6_dst_alloc+0x23/0x90
[ 5477.762408][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5477.762408][   T73]      ip6_pol_route+0x56f/0x840
[ 5477.762408][   T73]      fib6_rule_lookup+0x456/0x630
[ 5477.762408][   T73]      ip6_route_input+0x59c/0xa50
[ 5477.762408][   T73]      ipv6_rcv+0x397/0x810
[ 5477.762408][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5477.762408][   T73]      process_backlog+0x101/0x620
[ 5477.762408][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5477.762408][   T73]      net_rx_action+0x495/0xbe0
[ 5477.762408][   T73]      __do_softirq+0x1b5/0x7f6
[ 5477.762408][   T73] 
[ 5477.764250][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5477.764250][   T73]      netdev_get_by_index+0x5e/0x80
[ 5477.764250][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5477.764250][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5477.764250][   T73]      ip6_route_add+0x1c/0x140
[ 5477.764250][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5477.764250][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5477.764250][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5477.764250][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5477.764250][   T73]      netlink_rcv_skb+0x130/0x360
[ 5477.764250][   T73]      netlink_unicast+0x449/0x710
[ 5477.764250][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5477.764250][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5477.764250][   T73]      ___sys_sendmsg+0xee/0x170
[ 5477.764250][   T73]      __sys_sendmsg+0xcd/0x170
[ 5477.764250][   T73]      do_syscall_64+0xc6/0x1e0
[ 5477.764250][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5477.764250][   T73] 
[ 5477.766491][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5477.766491][   T73]      netdev_get_by_index+0x5e/0x80
[ 5477.766491][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5477.766491][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5477.766491][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5477.766491][   T73]      ipv6_add_addr+0x411/0x2000
[ 5477.766491][   T73]      inet6_addr_add+0x30e/0xa40
[ 5477.766491][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5477.766491][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5477.766491][   T73]      netlink_rcv_skb+0x130/0x360
[ 5477.766491][   T73]      netlink_unicast+0x449/0x710
[ 5477.766491][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5477.766491][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5477.766491][   T73]      ___sys_sendmsg+0xee/0x170
[ 5477.766491][   T73]      __sys_sendmsg+0xcd/0x170
[ 5477.766491][   T73]      do_syscall_64+0xc6/0x1e0
[ 5477.766491][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5477.766491][   T73] 
[ 5477.768719][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5477.768719][   T73]      netdev_get_by_index+0x5e/0x80
[ 5477.768719][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5477.768719][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5477.768719][   T73]      ip6_route_add+0x1c/0x140
[ 5477.768719][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5477.768719][   T73]      addrconf_add_dev+0xe2/0x170
[ 5477.768719][   T73]      inet6_addr_add+0x12f/0xa40
[ 5477.768719][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5477.768719][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5477.768719][   T73]      netlink_rcv_skb+0x130/0x360
[ 5477.768719][   T73]      netlink_unicast+0x449/0x710
[ 5477.768719][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5477.768719][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5477.768719][   T73]      ___sys_sendmsg+0xee/0x170
[ 5477.768719][   T73]      __sys_sendmsg+0xcd/0x170
[ 5477.768719][   T73]      do_syscall_64+0xc6/0x1e0
[ 5477.768719][   T73] 
[ 5477.770921][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5477.770921][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5477.770921][   T73]      ipv6_find_idev+0x102/0x170
[ 5477.770921][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5477.770921][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5477.770921][   T73]      netlink_rcv_skb+0x130/0x360
[ 5477.770921][   T73]      netlink_unicast+0x449/0x710
[ 5477.770921][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5477.770921][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5477.770921][   T73]      ___sys_sendmsg+0xee/0x170
[ 5477.770921][   T73]      __sys_sendmsg+0xcd/0x170
[ 5477.770921][   T73]      do_syscall_64+0xc6/0x1e0
[ 5477.770921][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5477.770921][   T73] 
[ 5477.772651][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5477.772651][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5477.772651][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5477.772651][   T73]      ipv6_find_idev+0x102/0x170
[ 5477.772651][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5477.772651][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5477.772651][   T73]      netlink_rcv_skb+0x130/0x360
[ 5477.772651][   T73]      netlink_unicast+0x449/0x710
[ 5477.772651][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5477.772651][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5477.772651][   T73]      ___sys_sendmsg+0xee/0x170
[ 5477.772651][   T73]      __sys_sendmsg+0xcd/0x170
[ 5477.772651][   T73]      do_syscall_64+0xc6/0x1e0
[ 5477.772651][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5477.772651][   T73] 
[ 5477.774570][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5477.774891][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5477.774891][   T73]      netdev_get_by_index+0x5e/0x80
[ 5477.774891][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5477.774891][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5477.774891][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5477.774891][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5477.774891][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5477.774891][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5477.774891][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5477.774891][   T73]      addrconf_dad_begin+0x310/0x670
[ 5477.774891][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5477.774891][   T73]      process_one_work+0x84d/0x18a0
[ 5477.774891][   T73]      worker_thread+0x587/0xd30
[ 5477.774891][   T73]      kthread+0x28a/0x350
[ 5477.774891][   T73]      ret_from_fork+0x31/0x70
[ 5477.774891][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5477.774891][   T73] 
[ 5477.777021][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5477.777021][   T73]      netdev_get_by_index+0x5e/0x80
[ 5477.777021][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5477.777021][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5477.777021][   T73]      ip6_route_add+0x1c/0x140
[ 5477.777021][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5477.777021][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5477.777021][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5477.777021][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5477.777021][   T73]      netlink_rcv_skb+0x130/0x360
[ 5477.777021][   T73]      netlink_unicast+0x449/0x710
[ 5477.777021][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5477.777021][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5477.777021][   T73]      ___sys_sendmsg+0xee/0x170
[ 5477.777021][   T73]      __sys_sendmsg+0xcd/0x170
[ 5477.777021][   T73]      do_syscall_64+0xc6/0x1e0
[ 5477.777021][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5477.777021][   T73] 
[ 5477.779257][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5477.779257][   T73]      netdev_get_by_index+0x5e/0x80
[ 5477.779257][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5477.779257][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5477.779257][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5477.779257][   T73]      ipv6_add_addr+0x411/0x2000
[ 5477.779257][   T73]      inet6_addr_add+0x30e/0xa40
[ 5477.779257][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5477.779257][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5477.779257][   T73]      netlink_rcv_skb+0x130/0x360
[ 5477.779257][   T73]      netlink_unicast+0x449/0x710
[ 5477.779257][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5477.779257][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5477.779257][   T73]      ___sys_sendmsg+0xee/0x170
[ 5477.779257][   T73]      __sys_sendmsg+0xcd/0x170
[ 5477.779257][   T73]      do_syscall_64+0xc6/0x1e0
[ 5477.779257][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5477.779257][   T73] 
[ 5477.781507][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5477.781507][   T73]      netdev_get_by_index+0x5e/0x80
[ 5477.781507][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5477.781507][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5477.781507][   T73]      ip6_route_add+0x1c/0x140
[ 5477.781507][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5477.781507][   T73]      addrconf_add_dev+0xe2/0x170
[ 5477.781507][   T73]      inet6_addr_add+0x12f/0xa40
[ 5477.781507][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5477.781507][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5477.781507][   T73]      netlink_rcv_skb+0x130/0x360
[ 5477.781507][   T73]      netlink_unicast+0x449/0x710
[ 5477.781507][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5477.781507][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5477.781507][   T73]      ___sys_sendmsg+0xee/0x170
[ 5477.781507][   T73]      __sys_sendmsg+0xcd/0x170
[ 5477.781507][   T73]      do_syscall_64+0xc6/0x1e0
[ 5477.781507][   T73] 
[ 5477.783708][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5477.783708][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5477.783708][   T73]      ipv6_find_idev+0x102/0x170
[ 5477.783708][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5477.783708][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5477.783708][   T73]      netlink_rcv_skb+0x130/0x360
[ 5477.783708][   T73]      netlink_unicast+0x449/0x710
[ 5477.783708][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5477.783708][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5477.783708][   T73]      ___sys_sendmsg+0xee/0x170
[ 5477.783708][   T73]      __sys_sendmsg+0xcd/0x170
[ 5477.783708][   T73]      do_syscall_64+0xc6/0x1e0
[ 5477.783708][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5477.783708][   T73] 
[ 5477.785413][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5477.785413][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5477.785413][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5477.785413][   T73]      ipv6_find_idev+0x102/0x170
[ 5477.785413][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5477.785413][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5477.785413][   T73]      netlink_rcv_skb+0x130/0x360
[ 5477.785413][   T73]      netlink_unicast+0x449/0x710
[ 5477.785413][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5477.785413][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5477.785413][   T73]      ___sys_sendmsg+0xee/0x170
[ 5477.785413][   T73]      __sys_sendmsg+0xcd/0x170
[ 5477.785413][   T73]      do_syscall_64+0xc6/0x1e0
[ 5477.785413][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5477.785413][   T73] 
[ 5477.787280][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5477.787576][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5477.787576][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5477.787576][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5477.787576][   T73]      fib6_nh_init+0xa22/0x1580
[ 5477.787576][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5477.787576][   T73]      ip6_route_add+0x1c/0x140
[ 5477.787576][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5477.787576][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5477.787576][   T73]      netlink_rcv_skb+0x130/0x360
[ 5477.787576][   T73]      netlink_unicast+0x449/0x710
[ 5477.787576][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5477.787576][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5477.787576][   T73]      ___sys_sendmsg+0xee/0x170
[ 5477.787576][   T73]      __sys_sendmsg+0xcd/0x170
[ 5477.787576][   T73]      do_syscall_64+0xc6/0x1e0
[ 5477.787576][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5477.787576][   T73] 
[ 5477.789853][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5477.789853][   T73]      dst_init+0x84/0x4a0
[ 5477.789853][   T73]      dst_alloc+0x97/0x150
[ 5477.789853][   T73]      ip6_dst_alloc+0x23/0x90
[ 5477.789853][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5477.789853][   T73]      ip6_pol_route+0x56f/0x840
[ 5477.789853][   T73]      fib6_rule_lookup+0x456/0x630
[ 5477.789853][   T73]      ip6_route_input+0x59c/0xa50
[ 5477.789853][   T73]      ipv6_rcv+0x397/0x810
[ 5477.789853][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5477.789853][   T73]      process_backlog+0x101/0x620
[ 5477.789853][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5477.789853][   T73]      net_rx_action+0x495/0xbe0
[ 5477.789853][   T73]      __do_softirq+0x1b5/0x7f6
[ 5477.789853][   T73] 
[ 5477.791848][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5477.791848][   T73]      netdev_get_by_index+0x5e/0x80
[ 5477.791848][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5477.791848][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5477.791848][   T73]      ip6_route_add+0x1c/0x140
[ 5477.791848][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5477.791848][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5477.791848][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5477.791848][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5477.791848][   T73]      netlink_rcv_skb+0x130/0x360
[ 5477.791848][   T73]      netlink_unicast+0x449/0x710
[ 5477.791848][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5477.791848][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5477.791848][   T73]      ___sys_sendmsg+0xee/0x170
[ 5477.791848][   T73]      __sys_sendmsg+0xcd/0x170
[ 5477.791848][   T73]      do_syscall_64+0xc6/0x1e0
[ 5477.791848][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5477.791848][   T73] 
[ 5477.794344][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5477.794344][   T73]      netdev_get_by_index+0x5e/0x80
[ 5477.794344][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5477.794344][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5477.794344][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5477.794344][   T73]      ipv6_add_addr+0x411/0x2000
[ 5477.794344][   T73]      inet6_addr_add+0x30e/0xa40
[ 5477.794344][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5477.794344][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5477.794344][   T73]      netlink_rcv_skb+0x130/0x360
[ 5477.794344][   T73]      netlink_unicast+0x449/0x710
[ 5477.794344][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5477.794344][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5477.794344][   T73]      ___sys_sendmsg+0xee/0x170
[ 5477.794344][   T73]      __sys_sendmsg+0xcd/0x170
[ 5477.794344][   T73]      do_syscall_64+0xc6/0x1e0
[ 5477.794344][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5477.794344][   T73] 
[ 5477.796801][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5477.796801][   T73]      netdev_get_by_index+0x5e/0x80
[ 5477.796801][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5477.796801][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5477.796801][   T73]      ip6_route_add+0x1c/0x140
[ 5477.796801][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5477.796801][   T73]      addrconf_add_dev+0xe2/0x170
[ 5477.796801][   T73]      inet6_addr_add+0x12f/0xa40
[ 5477.796801][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5477.796801][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5477.796801][   T73]      netlink_rcv_skb+0x130/0x360
[ 5477.796801][   T73]      netlink_unicast+0x449/0x710
[ 5477.796801][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5477.796801][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5477.796801][   T73]      ___sys_sendmsg+0xee/0x170
[ 5477.796801][   T73]      __sys_sendmsg+0xcd/0x170
[ 5477.796801][   T73]      do_syscall_64+0xc6/0x1e0
[ 5477.796801][   T73] 
[ 5477.799240][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5477.799240][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5477.799240][   T73]      ipv6_find_idev+0x102/0x170
[ 5477.799240][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5477.799240][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5477.799240][   T73]      netlink_rcv_skb+0x130/0x360
[ 5477.799240][   T73]      netlink_unicast+0x449/0x710
[ 5477.799240][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5477.799240][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5477.799240][   T73]      ___sys_sendmsg+0xee/0x170
[ 5477.799240][   T73]      __sys_sendmsg+0xcd/0x170
[ 5477.799240][   T73]      do_syscall_64+0xc6/0x1e0
[ 5477.799240][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5477.799240][   T73] 
[ 5477.801150][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5477.801150][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5477.801150][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5477.801150][   T73]      ipv6_find_idev+0x102/0x170
[ 5477.801150][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5477.801150][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5477.801150][   T73]      netlink_rcv_skb+0x130/0x360
[ 5477.801150][   T73]      netlink_unicast+0x449/0x710
[ 5477.801150][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5477.801150][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5477.801150][   T73]      ___sys_sendmsg+0xee/0x170
[ 5477.801150][   T73]      __sys_sendmsg+0xcd/0x170
[ 5477.801150][   T73]      do_syscall_64+0xc6/0x1e0
[ 5477.801150][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5477.801150][   T73] 
[ 5477.803210][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5477.803585][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5477.803585][   T73]      netdev_get_by_index+0x5e/0x80
[ 5477.803585][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5477.803585][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5477.803585][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5477.803585][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5477.803585][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5477.803585][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5477.803585][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5477.803585][   T73]      addrconf_dad_begin+0x310/0x670
[ 5477.803585][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5477.803585][   T73]      process_one_work+0x84d/0x18a0
[ 5477.803585][   T73]      worker_thread+0x587/0xd30
[ 5477.803585][   T73]      kthread+0x28a/0x350
[ 5477.803585][   T73]      ret_from_fork+0x31/0x70
[ 5477.803585][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5477.803585][   T73] 
[ 5477.805837][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5477.805837][   T73]      netdev_get_by_index+0x5e/0x80
[ 5477.805837][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5477.805837][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5477.805837][   T73]      ip6_route_add+0x1c/0x140
[ 5477.805837][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5477.805837][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5477.805837][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5477.805837][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5477.805837][   T73]      netlink_rcv_skb+0x130/0x360
[ 5477.805837][   T73]      netlink_unicast+0x449/0x710
[ 5477.805837][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5477.805837][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5477.805837][   T73]      ___sys_sendmsg+0xee/0x170
[ 5477.805837][   T73]      __sys_sendmsg+0xcd/0x170
[ 5477.805837][   T73]      do_syscall_64+0xc6/0x1e0
[ 5477.805837][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5477.805837][   T73] 
[ 5477.808366][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5477.808366][   T73]      netdev_get_by_index+0x5e/0x80
[ 5477.808366][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5477.808366][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5477.808366][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5477.808366][   T73]      ipv6_add_addr+0x411/0x2000
[ 5477.808366][   T73]      inet6_addr_add+0x30e/0xa40
[ 5477.808366][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5477.808366][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5477.808366][   T73]      netlink_rcv_skb+0x130/0x360
[ 5477.808366][   T73]      netlink_unicast+0x449/0x710
[ 5477.808366][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5477.808366][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5477.808366][   T73]      ___sys_sendmsg+0xee/0x170
[ 5477.808366][   T73]      __sys_sendmsg+0xcd/0x170
[ 5477.808366][   T73]      do_syscall_64+0xc6/0x1e0
[ 5477.808366][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5477.808366][   T73] 
[ 5477.810851][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5477.810851][   T73]      netdev_get_by_index+0x5e/0x80
[ 5477.810851][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5477.810851][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5477.810851][   T73]      ip6_route_add+0x1c/0x140
[ 5477.810851][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5477.810851][   T73]      addrconf_add_dev+0xe2/0x170
[ 5477.810851][   T73]      inet6_addr_add+0x12f/0xa40
[ 5477.810851][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5477.810851][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5477.810851][   T73]      netlink_rcv_skb+0x130/0x360
[ 5477.810851][   T73]      netlink_unicast+0x449/0x710
[ 5477.810851][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5477.810851][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5477.810851][   T73]      ___sys_sendmsg+0xee/0x170
[ 5477.810851][   T73]      __sys_sendmsg+0xcd/0x170
[ 5477.810851][   T73]      do_syscall_64+0xc6/0x1e0
[ 5477.810851][   T73] 
[ 5477.813290][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5477.813290][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5477.813290][   T73]      ipv6_find_idev+0x102/0x170
[ 5477.813290][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5477.813290][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5477.813290][   T73]      netlink_rcv_skb+0x130/0x360
[ 5477.813290][   T73]      netlink_unicast+0x449/0x710
[ 5477.813290][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5477.813290][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5477.813290][   T73]      ___sys_sendmsg+0xee/0x170
[ 5477.813290][   T73]      __sys_sendmsg+0xcd/0x170
[ 5477.813290][   T73]      do_syscall_64+0xc6/0x1e0
[ 5477.813290][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5477.813290][   T73] 
[ 5477.815184][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5477.815184][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5477.815184][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5477.815184][   T73]      ipv6_find_idev+0x102/0x170
[ 5477.815184][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5477.815184][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5477.815184][   T73]      netlink_rcv_skb+0x130/0x360
[ 5477.815184][   T73]      netlink_unicast+0x449/0x710
[ 5477.815184][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5477.815184][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5477.815184][   T73]      ___sys_sendmsg+0xee/0x170
[ 5477.815184][   T73]      __sys_sendmsg+0xcd/0x170
[ 5477.815184][   T73]      do_syscall_64+0xc6/0x1e0
[ 5477.815184][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5477.815184][   T73] 
[ 5488.055697][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5488.056182][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5488.056182][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5488.056182][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5488.056182][   T73]      fib6_nh_init+0xa22/0x1580
[ 5488.056182][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5488.056182][   T73]      ip6_route_add+0x1c/0x140
[ 5488.056182][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5488.056182][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5488.056182][   T73]      netlink_rcv_skb+0x130/0x360
[ 5488.056182][   T73]      netlink_unicast+0x449/0x710
[ 5488.056182][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5488.056182][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5488.056182][   T73]      ___sys_sendmsg+0xee/0x170
[ 5488.056182][   T73]      __sys_sendmsg+0xcd/0x170
[ 5488.056182][   T73]      do_syscall_64+0xc6/0x1e0
[ 5488.056182][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5488.056182][   T73] 
[ 5488.058123][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5488.058123][   T73]      dst_init+0x84/0x4a0
[ 5488.058123][   T73]      dst_alloc+0x97/0x150
[ 5488.058123][   T73]      ip6_dst_alloc+0x23/0x90
[ 5488.058123][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5488.058123][   T73]      ip6_pol_route+0x56f/0x840
[ 5488.058123][   T73]      fib6_rule_lookup+0x456/0x630
[ 5488.058123][   T73]      ip6_route_input+0x59c/0xa50
[ 5488.058123][   T73]      ipv6_rcv+0x397/0x810
[ 5488.058123][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5488.058123][   T73]      process_backlog+0x101/0x620
[ 5488.058123][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5488.058123][   T73]      net_rx_action+0x495/0xbe0
[ 5488.058123][   T73]      __do_softirq+0x1b5/0x7f6
[ 5488.058123][   T73] 
[ 5488.059822][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5488.059822][   T73]      netdev_get_by_index+0x5e/0x80
[ 5488.059822][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5488.059822][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5488.059822][   T73]      ip6_route_add+0x1c/0x140
[ 5488.059822][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5488.059822][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5488.059822][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5488.059822][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5488.059822][   T73]      netlink_rcv_skb+0x130/0x360
[ 5488.059822][   T73]      netlink_unicast+0x449/0x710
[ 5488.059822][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5488.059822][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5488.059822][   T73]      ___sys_sendmsg+0xee/0x170
[ 5488.059822][   T73]      __sys_sendmsg+0xcd/0x170
[ 5488.059822][   T73]      do_syscall_64+0xc6/0x1e0
[ 5488.059822][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5488.059822][   T73] 
[ 5488.061855][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5488.061855][   T73]      netdev_get_by_index+0x5e/0x80
[ 5488.061855][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5488.061855][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5488.061855][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5488.061855][   T73]      ipv6_add_addr+0x411/0x2000
[ 5488.061855][   T73]      inet6_addr_add+0x30e/0xa40
[ 5488.061855][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5488.061855][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5488.061855][   T73]      netlink_rcv_skb+0x130/0x360
[ 5488.061855][   T73]      netlink_unicast+0x449/0x710
[ 5488.061855][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5488.061855][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5488.061855][   T73]      ___sys_sendmsg+0xee/0x170
[ 5488.061855][   T73]      __sys_sendmsg+0xcd/0x170
[ 5488.061855][   T73]      do_syscall_64+0xc6/0x1e0
[ 5488.061855][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5488.061855][   T73] 
[ 5488.063902][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5488.063902][   T73]      netdev_get_by_index+0x5e/0x80
[ 5488.063902][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5488.063902][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5488.063902][   T73]      ip6_route_add+0x1c/0x140
[ 5488.063902][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5488.063902][   T73]      addrconf_add_dev+0xe2/0x170
[ 5488.063902][   T73]      inet6_addr_add+0x12f/0xa40
[ 5488.063902][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5488.063902][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5488.063902][   T73]      netlink_rcv_skb+0x130/0x360
[ 5488.063902][   T73]      netlink_unicast+0x449/0x710
[ 5488.063902][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5488.063902][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5488.063902][   T73]      ___sys_sendmsg+0xee/0x170
[ 5488.063902][   T73]      __sys_sendmsg+0xcd/0x170
[ 5488.063902][   T73]      do_syscall_64+0xc6/0x1e0
[ 5488.063902][   T73] 
[ 5488.065953][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5488.065953][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5488.065953][   T73]      ipv6_find_idev+0x102/0x170
[ 5488.065953][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5488.065953][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5488.065953][   T73]      netlink_rcv_skb+0x130/0x360
[ 5488.065953][   T73]      netlink_unicast+0x449/0x710
[ 5488.065953][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5488.065953][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5488.065953][   T73]      ___sys_sendmsg+0xee/0x170
[ 5488.065953][   T73]      __sys_sendmsg+0xcd/0x170
[ 5488.065953][   T73]      do_syscall_64+0xc6/0x1e0
[ 5488.065953][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5488.065953][   T73] 
[ 5488.067543][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5488.067543][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5488.067543][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5488.067543][   T73]      ipv6_find_idev+0x102/0x170
[ 5488.067543][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5488.067543][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5488.067543][   T73]      netlink_rcv_skb+0x130/0x360
[ 5488.067543][   T73]      netlink_unicast+0x449/0x710
[ 5488.067543][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5488.067543][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5488.067543][   T73]      ___sys_sendmsg+0xee/0x170
[ 5488.067543][   T73]      __sys_sendmsg+0xcd/0x170
[ 5488.067543][   T73]      do_syscall_64+0xc6/0x1e0
[ 5488.067543][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5488.067543][   T73] 
[ 5488.069314][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5488.069606][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5488.069606][   T73]      netdev_get_by_index+0x5e/0x80
[ 5488.069606][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5488.069606][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5488.069606][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5488.069606][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5488.069606][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5488.069606][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5488.069606][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5488.069606][   T73]      addrconf_dad_begin+0x310/0x670
[ 5488.069606][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5488.069606][   T73]      process_one_work+0x84d/0x18a0
[ 5488.069606][   T73]      worker_thread+0x587/0xd30
[ 5488.069606][   T73]      kthread+0x28a/0x350
[ 5488.069606][   T73]      ret_from_fork+0x31/0x70
[ 5488.069606][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5488.069606][   T73] 
[ 5488.071588][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5488.071588][   T73]      netdev_get_by_index+0x5e/0x80
[ 5488.071588][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5488.071588][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5488.071588][   T73]      ip6_route_add+0x1c/0x140
[ 5488.071588][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5488.071588][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5488.071588][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5488.071588][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5488.071588][   T73]      netlink_rcv_skb+0x130/0x360
[ 5488.071588][   T73]      netlink_unicast+0x449/0x710
[ 5488.071588][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5488.071588][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5488.071588][   T73]      ___sys_sendmsg+0xee/0x170
[ 5488.071588][   T73]      __sys_sendmsg+0xcd/0x170
[ 5488.071588][   T73]      do_syscall_64+0xc6/0x1e0
[ 5488.071588][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5488.071588][   T73] 
[ 5488.073653][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5488.073653][   T73]      netdev_get_by_index+0x5e/0x80
[ 5488.073653][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5488.073653][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5488.073653][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5488.073653][   T73]      ipv6_add_addr+0x411/0x2000
[ 5488.073653][   T73]      inet6_addr_add+0x30e/0xa40
[ 5488.073653][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5488.073653][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5488.073653][   T73]      netlink_rcv_skb+0x130/0x360
[ 5488.073653][   T73]      netlink_unicast+0x449/0x710
[ 5488.073653][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5488.073653][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5488.073653][   T73]      ___sys_sendmsg+0xee/0x170
[ 5488.073653][   T73]      __sys_sendmsg+0xcd/0x170
[ 5488.073653][   T73]      do_syscall_64+0xc6/0x1e0
[ 5488.073653][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5488.073653][   T73] 
[ 5488.075726][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5488.075726][   T73]      netdev_get_by_index+0x5e/0x80
[ 5488.075726][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5488.075726][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5488.075726][   T73]      ip6_route_add+0x1c/0x140
[ 5488.075726][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5488.075726][   T73]      addrconf_add_dev+0xe2/0x170
[ 5488.075726][   T73]      inet6_addr_add+0x12f/0xa40
[ 5488.075726][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5488.075726][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5488.075726][   T73]      netlink_rcv_skb+0x130/0x360
[ 5488.075726][   T73]      netlink_unicast+0x449/0x710
[ 5488.075726][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5488.075726][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5488.075726][   T73]      ___sys_sendmsg+0xee/0x170
[ 5488.075726][   T73]      __sys_sendmsg+0xcd/0x170
[ 5488.075726][   T73]      do_syscall_64+0xc6/0x1e0
[ 5488.075726][   T73] 
[ 5488.077750][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5488.077750][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5488.077750][   T73]      ipv6_find_idev+0x102/0x170
[ 5488.077750][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5488.077750][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5488.077750][   T73]      netlink_rcv_skb+0x130/0x360
[ 5488.077750][   T73]      netlink_unicast+0x449/0x710
[ 5488.077750][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5488.077750][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5488.077750][   T73]      ___sys_sendmsg+0xee/0x170
[ 5488.077750][   T73]      __sys_sendmsg+0xcd/0x170
[ 5488.077750][   T73]      do_syscall_64+0xc6/0x1e0
[ 5488.077750][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5488.077750][   T73] 
[ 5488.079356][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5488.079356][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5488.079356][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5488.079356][   T73]      ipv6_find_idev+0x102/0x170
[ 5488.079356][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5488.079356][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5488.079356][   T73]      netlink_rcv_skb+0x130/0x360
[ 5488.079356][   T73]      netlink_unicast+0x449/0x710
[ 5488.079356][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5488.079356][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5488.079356][   T73]      ___sys_sendmsg+0xee/0x170
[ 5488.079356][   T73]      __sys_sendmsg+0xcd/0x170
[ 5488.079356][   T73]      do_syscall_64+0xc6/0x1e0
[ 5488.079356][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5488.079356][   T73] 
[ 5488.081098][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5488.081386][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5488.081386][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5488.081386][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5488.081386][   T73]      fib6_nh_init+0xa22/0x1580
[ 5488.081386][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5488.081386][   T73]      ip6_route_add+0x1c/0x140
[ 5488.081386][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5488.081386][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5488.081386][   T73]      netlink_rcv_skb+0x130/0x360
[ 5488.081386][   T73]      netlink_unicast+0x449/0x710
[ 5488.081386][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5488.081386][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5488.081386][   T73]      ___sys_sendmsg+0xee/0x170
[ 5488.081386][   T73]      __sys_sendmsg+0xcd/0x170
[ 5488.081386][   T73]      do_syscall_64+0xc6/0x1e0
[ 5488.081386][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5488.081386][   T73] 
[ 5488.083481][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5488.083481][   T73]      dst_init+0x84/0x4a0
[ 5488.083481][   T73]      dst_alloc+0x97/0x150
[ 5488.083481][   T73]      ip6_dst_alloc+0x23/0x90
[ 5488.083481][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5488.083481][   T73]      ip6_pol_route+0x56f/0x840
[ 5488.083481][   T73]      fib6_rule_lookup+0x456/0x630
[ 5488.083481][   T73]      ip6_route_input+0x59c/0xa50
[ 5488.083481][   T73]      ipv6_rcv+0x397/0x810
[ 5488.083481][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5488.083481][   T73]      process_backlog+0x101/0x620
[ 5488.083481][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5488.083481][   T73]      net_rx_action+0x495/0xbe0
[ 5488.083481][   T73]      __do_softirq+0x1b5/0x7f6
[ 5488.083481][   T73] 
[ 5488.085318][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5488.085318][   T73]      netdev_get_by_index+0x5e/0x80
[ 5488.085318][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5488.085318][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5488.085318][   T73]      ip6_route_add+0x1c/0x140
[ 5488.085318][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5488.085318][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5488.085318][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5488.085318][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5488.085318][   T73]      netlink_rcv_skb+0x130/0x360
[ 5488.085318][   T73]      netlink_unicast+0x449/0x710
[ 5488.085318][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5488.085318][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5488.085318][   T73]      ___sys_sendmsg+0xee/0x170
[ 5488.085318][   T73]      __sys_sendmsg+0xcd/0x170
[ 5488.085318][   T73]      do_syscall_64+0xc6/0x1e0
[ 5488.085318][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5488.085318][   T73] 
[ 5488.087524][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5488.087524][   T73]      netdev_get_by_index+0x5e/0x80
[ 5488.087524][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5488.087524][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5488.087524][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5488.087524][   T73]      ipv6_add_addr+0x411/0x2000
[ 5488.087524][   T73]      inet6_addr_add+0x30e/0xa40
[ 5488.087524][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5488.087524][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5488.087524][   T73]      netlink_rcv_skb+0x130/0x360
[ 5488.087524][   T73]      netlink_unicast+0x449/0x710
[ 5488.087524][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5488.087524][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5488.087524][   T73]      ___sys_sendmsg+0xee/0x170
[ 5488.087524][   T73]      __sys_sendmsg+0xcd/0x170
[ 5488.087524][   T73]      do_syscall_64+0xc6/0x1e0
[ 5488.087524][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5488.087524][   T73] 
[ 5488.089751][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5488.089751][   T73]      netdev_get_by_index+0x5e/0x80
[ 5488.089751][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5488.089751][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5488.089751][   T73]      ip6_route_add+0x1c/0x140
[ 5488.089751][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5488.089751][   T73]      addrconf_add_dev+0xe2/0x170
[ 5488.089751][   T73]      inet6_addr_add+0x12f/0xa40
[ 5488.089751][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5488.089751][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5488.089751][   T73]      netlink_rcv_skb+0x130/0x360
[ 5488.089751][   T73]      netlink_unicast+0x449/0x710
[ 5488.089751][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5488.089751][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5488.089751][   T73]      ___sys_sendmsg+0xee/0x170
[ 5488.089751][   T73]      __sys_sendmsg+0xcd/0x170
[ 5488.089751][   T73]      do_syscall_64+0xc6/0x1e0
[ 5488.089751][   T73] 
[ 5488.091858][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5488.091858][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5488.091858][   T73]      ipv6_find_idev+0x102/0x170
[ 5488.091858][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5488.091858][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5488.091858][   T73]      netlink_rcv_skb+0x130/0x360
[ 5488.091858][   T73]      netlink_unicast+0x449/0x710
[ 5488.091858][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5488.091858][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5488.091858][   T73]      ___sys_sendmsg+0xee/0x170
[ 5488.091858][   T73]      __sys_sendmsg+0xcd/0x170
[ 5488.091858][   T73]      do_syscall_64+0xc6/0x1e0
[ 5488.091858][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5488.091858][   T73] 
[ 5488.093596][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5488.093596][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5488.093596][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5488.093596][   T73]      ipv6_find_idev+0x102/0x170
[ 5488.093596][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5488.093596][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5488.093596][   T73]      netlink_rcv_skb+0x130/0x360
[ 5488.093596][   T73]      netlink_unicast+0x449/0x710
[ 5488.093596][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5488.093596][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5488.093596][   T73]      ___sys_sendmsg+0xee/0x170
[ 5488.093596][   T73]      __sys_sendmsg+0xcd/0x170
[ 5488.093596][   T73]      do_syscall_64+0xc6/0x1e0
[ 5488.093596][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5488.093596][   T73] 
[ 5488.095480][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5488.096215][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5488.096215][   T73]      netdev_get_by_index+0x5e/0x80
[ 5488.096215][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5488.096215][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5488.096215][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5488.096215][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5488.096215][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5488.096215][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5488.096215][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5488.096215][   T73]      addrconf_dad_begin+0x310/0x670
[ 5488.096215][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5488.096215][   T73]      process_one_work+0x84d/0x18a0
[ 5488.096215][   T73]      worker_thread+0x587/0xd30
[ 5488.096215][   T73]      kthread+0x28a/0x350
[ 5488.096215][   T73]      ret_from_fork+0x31/0x70
[ 5488.096215][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5488.096215][   T73] 
[ 5488.098177][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5488.098177][   T73]      netdev_get_by_index+0x5e/0x80
[ 5488.098177][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5488.098177][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5488.098177][   T73]      ip6_route_add+0x1c/0x140
[ 5488.098177][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5488.098177][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5488.098177][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5488.098177][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5488.098177][   T73]      netlink_rcv_skb+0x130/0x360
[ 5488.098177][   T73]      netlink_unicast+0x449/0x710
[ 5488.098177][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5488.098177][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5488.098177][   T73]      ___sys_sendmsg+0xee/0x170
[ 5488.098177][   T73]      __sys_sendmsg+0xcd/0x170
[ 5488.098177][   T73]      do_syscall_64+0xc6/0x1e0
[ 5488.098177][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5488.098177][   T73] 
[ 5488.100328][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5488.100328][   T73]      netdev_get_by_index+0x5e/0x80
[ 5488.100328][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5488.100328][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5488.100328][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5488.100328][   T73]      ipv6_add_addr+0x411/0x2000
[ 5488.100328][   T73]      inet6_addr_add+0x30e/0xa40
[ 5488.100328][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5488.100328][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5488.100328][   T73]      netlink_rcv_skb+0x130/0x360
[ 5488.100328][   T73]      netlink_unicast+0x449/0x710
[ 5488.100328][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5488.100328][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5488.100328][   T73]      ___sys_sendmsg+0xee/0x170
[ 5488.100328][   T73]      __sys_sendmsg+0xcd/0x170
[ 5488.100328][   T73]      do_syscall_64+0xc6/0x1e0
[ 5488.100328][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5488.100328][   T73] 
[ 5488.102446][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5488.102446][   T73]      netdev_get_by_index+0x5e/0x80
[ 5488.102446][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5488.102446][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5488.102446][   T73]      ip6_route_add+0x1c/0x140
[ 5488.102446][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5488.102446][   T73]      addrconf_add_dev+0xe2/0x170
[ 5488.102446][   T73]      inet6_addr_add+0x12f/0xa40
[ 5488.102446][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5488.102446][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5488.102446][   T73]      netlink_rcv_skb+0x130/0x360
[ 5488.102446][   T73]      netlink_unicast+0x449/0x710
[ 5488.102446][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5488.102446][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5488.102446][   T73]      ___sys_sendmsg+0xee/0x170
[ 5488.102446][   T73]      __sys_sendmsg+0xcd/0x170
[ 5488.102446][   T73]      do_syscall_64+0xc6/0x1e0
[ 5488.102446][   T73] 
[ 5488.104618][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5488.104618][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5488.104618][   T73]      ipv6_find_idev+0x102/0x170
[ 5488.104618][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5488.104618][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5488.104618][   T73]      netlink_rcv_skb+0x130/0x360
[ 5488.104618][   T73]      netlink_unicast+0x449/0x710
[ 5488.104618][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5488.104618][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5488.104618][   T73]      ___sys_sendmsg+0xee/0x170
[ 5488.104618][   T73]      __sys_sendmsg+0xcd/0x170
[ 5488.104618][   T73]      do_syscall_64+0xc6/0x1e0
[ 5488.104618][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5488.104618][   T73] 
[ 5488.106353][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5488.106353][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5488.106353][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5488.106353][   T73]      ipv6_find_idev+0x102/0x170
[ 5488.106353][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5488.106353][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5488.106353][   T73]      netlink_rcv_skb+0x130/0x360
[ 5488.106353][   T73]      netlink_unicast+0x449/0x710
[ 5488.106353][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5488.106353][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5488.106353][   T73]      ___sys_sendmsg+0xee/0x170
[ 5488.106353][   T73]      __sys_sendmsg+0xcd/0x170
[ 5488.106353][   T73]      do_syscall_64+0xc6/0x1e0
[ 5488.106353][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5488.106353][   T73] 
[ 5498.343802][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5498.344321][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5498.344321][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5498.344321][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5498.344321][   T73]      fib6_nh_init+0xa22/0x1580
[ 5498.344321][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5498.344321][   T73]      ip6_route_add+0x1c/0x140
[ 5498.344321][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5498.344321][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5498.344321][   T73]      netlink_rcv_skb+0x130/0x360
[ 5498.344321][   T73]      netlink_unicast+0x449/0x710
[ 5498.344321][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5498.344321][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5498.344321][   T73]      ___sys_sendmsg+0xee/0x170
[ 5498.344321][   T73]      __sys_sendmsg+0xcd/0x170
[ 5498.344321][   T73]      do_syscall_64+0xc6/0x1e0
[ 5498.344321][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5498.344321][   T73] 
[ 5498.346990][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5498.346990][   T73]      dst_init+0x84/0x4a0
[ 5498.346990][   T73]      dst_alloc+0x97/0x150
[ 5498.346990][   T73]      ip6_dst_alloc+0x23/0x90
[ 5498.346990][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5498.346990][   T73]      ip6_pol_route+0x56f/0x840
[ 5498.346990][   T73]      fib6_rule_lookup+0x456/0x630
[ 5498.346990][   T73]      ip6_route_input+0x59c/0xa50
[ 5498.346990][   T73]      ipv6_rcv+0x397/0x810
[ 5498.346990][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5498.346990][   T73]      process_backlog+0x101/0x620
[ 5498.346990][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5498.346990][   T73]      net_rx_action+0x495/0xbe0
[ 5498.346990][   T73]      __do_softirq+0x1b5/0x7f6
[ 5498.346990][   T73] 
[ 5498.348849][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5498.348849][   T73]      netdev_get_by_index+0x5e/0x80
[ 5498.348849][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5498.348849][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5498.348849][   T73]      ip6_route_add+0x1c/0x140
[ 5498.348849][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5498.348849][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5498.348849][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5498.348849][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5498.348849][   T73]      netlink_rcv_skb+0x130/0x360
[ 5498.348849][   T73]      netlink_unicast+0x449/0x710
[ 5498.348849][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5498.348849][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5498.348849][   T73]      ___sys_sendmsg+0xee/0x170
[ 5498.348849][   T73]      __sys_sendmsg+0xcd/0x170
[ 5498.348849][   T73]      do_syscall_64+0xc6/0x1e0
[ 5498.348849][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5498.348849][   T73] 
[ 5498.351115][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5498.351115][   T73]      netdev_get_by_index+0x5e/0x80
[ 5498.351115][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5498.351115][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5498.351115][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5498.351115][   T73]      ipv6_add_addr+0x411/0x2000
[ 5498.351115][   T73]      inet6_addr_add+0x30e/0xa40
[ 5498.351115][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5498.351115][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5498.351115][   T73]      netlink_rcv_skb+0x130/0x360
[ 5498.351115][   T73]      netlink_unicast+0x449/0x710
[ 5498.351115][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5498.351115][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5498.351115][   T73]      ___sys_sendmsg+0xee/0x170
[ 5498.351115][   T73]      __sys_sendmsg+0xcd/0x170
[ 5498.351115][   T73]      do_syscall_64+0xc6/0x1e0
[ 5498.351115][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5498.351115][   T73] 
[ 5498.353364][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5498.353364][   T73]      netdev_get_by_index+0x5e/0x80
[ 5498.353364][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5498.353364][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5498.353364][   T73]      ip6_route_add+0x1c/0x140
[ 5498.353364][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5498.353364][   T73]      addrconf_add_dev+0xe2/0x170
[ 5498.353364][   T73]      inet6_addr_add+0x12f/0xa40
[ 5498.353364][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5498.353364][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5498.353364][   T73]      netlink_rcv_skb+0x130/0x360
[ 5498.353364][   T73]      netlink_unicast+0x449/0x710
[ 5498.353364][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5498.353364][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5498.353364][   T73]      ___sys_sendmsg+0xee/0x170
[ 5498.353364][   T73]      __sys_sendmsg+0xcd/0x170
[ 5498.353364][   T73]      do_syscall_64+0xc6/0x1e0
[ 5498.353364][   T73] 
[ 5498.355612][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5498.355612][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5498.355612][   T73]      ipv6_find_idev+0x102/0x170
[ 5498.355612][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5498.355612][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5498.355612][   T73]      netlink_rcv_skb+0x130/0x360
[ 5498.355612][   T73]      netlink_unicast+0x449/0x710
[ 5498.355612][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5498.355612][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5498.355612][   T73]      ___sys_sendmsg+0xee/0x170
[ 5498.355612][   T73]      __sys_sendmsg+0xcd/0x170
[ 5498.355612][   T73]      do_syscall_64+0xc6/0x1e0
[ 5498.355612][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5498.355612][   T73] 
[ 5498.359327][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5498.359327][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5498.359327][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5498.359327][   T73]      ipv6_find_idev+0x102/0x170
[ 5498.359327][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5498.359327][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5498.359327][   T73]      netlink_rcv_skb+0x130/0x360
[ 5498.359327][   T73]      netlink_unicast+0x449/0x710
[ 5498.359327][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5498.359327][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5498.359327][   T73]      ___sys_sendmsg+0xee/0x170
[ 5498.359327][   T73]      __sys_sendmsg+0xcd/0x170
[ 5498.359327][   T73]      do_syscall_64+0xc6/0x1e0
[ 5498.359327][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5498.359327][   T73] 
[ 5498.361254][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5498.361568][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5498.361568][   T73]      netdev_get_by_index+0x5e/0x80
[ 5498.361568][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5498.361568][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5498.361568][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5498.361568][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5498.361568][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5498.361568][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5498.361568][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5498.361568][   T73]      addrconf_dad_begin+0x310/0x670
[ 5498.361568][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5498.361568][   T73]      process_one_work+0x84d/0x18a0
[ 5498.361568][   T73]      worker_thread+0x587/0xd30
[ 5498.361568][   T73]      kthread+0x28a/0x350
[ 5498.361568][   T73]      ret_from_fork+0x31/0x70
[ 5498.361568][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5498.361568][   T73] 
[ 5498.363747][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5498.363747][   T73]      netdev_get_by_index+0x5e/0x80
[ 5498.363747][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5498.363747][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5498.363747][   T73]      ip6_route_add+0x1c/0x140
[ 5498.363747][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5498.363747][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5498.363747][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5498.363747][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5498.363747][   T73]      netlink_rcv_skb+0x130/0x360
[ 5498.363747][   T73]      netlink_unicast+0x449/0x710
[ 5498.363747][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5498.363747][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5498.363747][   T73]      ___sys_sendmsg+0xee/0x170
[ 5498.363747][   T73]      __sys_sendmsg+0xcd/0x170
[ 5498.363747][   T73]      do_syscall_64+0xc6/0x1e0
[ 5498.363747][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5498.363747][   T73] 
[ 5498.366000][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5498.366000][   T73]      netdev_get_by_index+0x5e/0x80
[ 5498.366000][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5498.366000][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5498.366000][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5498.366000][   T73]      ipv6_add_addr+0x411/0x2000
[ 5498.366000][   T73]      inet6_addr_add+0x30e/0xa40
[ 5498.366000][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5498.366000][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5498.366000][   T73]      netlink_rcv_skb+0x130/0x360
[ 5498.366000][   T73]      netlink_unicast+0x449/0x710
[ 5498.366000][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5498.366000][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5498.366000][   T73]      ___sys_sendmsg+0xee/0x170
[ 5498.366000][   T73]      __sys_sendmsg+0xcd/0x170
[ 5498.366000][   T73]      do_syscall_64+0xc6/0x1e0
[ 5498.366000][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5498.366000][   T73] 
[ 5498.368261][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5498.368261][   T73]      netdev_get_by_index+0x5e/0x80
[ 5498.368261][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5498.368261][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5498.368261][   T73]      ip6_route_add+0x1c/0x140
[ 5498.368261][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5498.368261][   T73]      addrconf_add_dev+0xe2/0x170
[ 5498.368261][   T73]      inet6_addr_add+0x12f/0xa40
[ 5498.368261][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5498.368261][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5498.368261][   T73]      netlink_rcv_skb+0x130/0x360
[ 5498.368261][   T73]      netlink_unicast+0x449/0x710
[ 5498.368261][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5498.368261][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5498.368261][   T73]      ___sys_sendmsg+0xee/0x170
[ 5498.368261][   T73]      __sys_sendmsg+0xcd/0x170
[ 5498.368261][   T73]      do_syscall_64+0xc6/0x1e0
[ 5498.368261][   T73] 
[ 5498.370480][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5498.370480][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5498.370480][   T73]      ipv6_find_idev+0x102/0x170
[ 5498.370480][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5498.370480][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5498.370480][   T73]      netlink_rcv_skb+0x130/0x360
[ 5498.370480][   T73]      netlink_unicast+0x449/0x710
[ 5498.370480][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5498.370480][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5498.370480][   T73]      ___sys_sendmsg+0xee/0x170
[ 5498.370480][   T73]      __sys_sendmsg+0xcd/0x170
[ 5498.370480][   T73]      do_syscall_64+0xc6/0x1e0
[ 5498.370480][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5498.370480][   T73] 
[ 5498.372212][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5498.372212][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5498.372212][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5498.372212][   T73]      ipv6_find_idev+0x102/0x170
[ 5498.372212][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5498.372212][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5498.372212][   T73]      netlink_rcv_skb+0x130/0x360
[ 5498.372212][   T73]      netlink_unicast+0x449/0x710
[ 5498.372212][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5498.372212][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5498.372212][   T73]      ___sys_sendmsg+0xee/0x170
[ 5498.372212][   T73]      __sys_sendmsg+0xcd/0x170
[ 5498.372212][   T73]      do_syscall_64+0xc6/0x1e0
[ 5498.372212][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5498.372212][   T73] 
[ 5498.374137][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5498.374430][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5498.374430][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5498.374430][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5498.374430][   T73]      fib6_nh_init+0xa22/0x1580
[ 5498.374430][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5498.374430][   T73]      ip6_route_add+0x1c/0x140
[ 5498.374430][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5498.374430][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5498.374430][   T73]      netlink_rcv_skb+0x130/0x360
[ 5498.374430][   T73]      netlink_unicast+0x449/0x710
[ 5498.374430][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5498.374430][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5498.374430][   T73]      ___sys_sendmsg+0xee/0x170
[ 5498.374430][   T73]      __sys_sendmsg+0xcd/0x170
[ 5498.374430][   T73]      do_syscall_64+0xc6/0x1e0
[ 5498.374430][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5498.374430][   T73] 
[ 5498.376760][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5498.376760][   T73]      dst_init+0x84/0x4a0
[ 5498.376760][   T73]      dst_alloc+0x97/0x150
[ 5498.376760][   T73]      ip6_dst_alloc+0x23/0x90
[ 5498.376760][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5498.376760][   T73]      ip6_pol_route+0x56f/0x840
[ 5498.376760][   T73]      fib6_rule_lookup+0x456/0x630
[ 5498.376760][   T73]      ip6_route_input+0x59c/0xa50
[ 5498.376760][   T73]      ipv6_rcv+0x397/0x810
[ 5498.376760][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5498.376760][   T73]      process_backlog+0x101/0x620
[ 5498.376760][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5498.376760][   T73]      net_rx_action+0x495/0xbe0
[ 5498.376760][   T73]      __do_softirq+0x1b5/0x7f6
[ 5498.376760][   T73] 
[ 5498.378787][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5498.378787][   T73]      netdev_get_by_index+0x5e/0x80
[ 5498.378787][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5498.378787][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5498.378787][   T73]      ip6_route_add+0x1c/0x140
[ 5498.378787][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5498.378787][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5498.378787][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5498.378787][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5498.378787][   T73]      netlink_rcv_skb+0x130/0x360
[ 5498.378787][   T73]      netlink_unicast+0x449/0x710
[ 5498.378787][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5498.378787][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5498.378787][   T73]      ___sys_sendmsg+0xee/0x170
[ 5498.378787][   T73]      __sys_sendmsg+0xcd/0x170
[ 5498.378787][   T73]      do_syscall_64+0xc6/0x1e0
[ 5498.378787][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5498.378787][   T73] 
[ 5498.381296][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5498.381296][   T73]      netdev_get_by_index+0x5e/0x80
[ 5498.381296][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5498.381296][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5498.381296][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5498.381296][   T73]      ipv6_add_addr+0x411/0x2000
[ 5498.381296][   T73]      inet6_addr_add+0x30e/0xa40
[ 5498.381296][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5498.381296][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5498.381296][   T73]      netlink_rcv_skb+0x130/0x360
[ 5498.381296][   T73]      netlink_unicast+0x449/0x710
[ 5498.381296][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5498.381296][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5498.381296][   T73]      ___sys_sendmsg+0xee/0x170
[ 5498.381296][   T73]      __sys_sendmsg+0xcd/0x170
[ 5498.381296][   T73]      do_syscall_64+0xc6/0x1e0
[ 5498.381296][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5498.381296][   T73] 
[ 5498.383720][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5498.383720][   T73]      netdev_get_by_index+0x5e/0x80
[ 5498.383720][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5498.383720][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5498.383720][   T73]      ip6_route_add+0x1c/0x140
[ 5498.383720][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5498.383720][   T73]      addrconf_add_dev+0xe2/0x170
[ 5498.383720][   T73]      inet6_addr_add+0x12f/0xa40
[ 5498.383720][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5498.383720][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5498.383720][   T73]      netlink_rcv_skb+0x130/0x360
[ 5498.383720][   T73]      netlink_unicast+0x449/0x710
[ 5498.383720][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5498.383720][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5498.383720][   T73]      ___sys_sendmsg+0xee/0x170
[ 5498.383720][   T73]      __sys_sendmsg+0xcd/0x170
[ 5498.383720][   T73]      do_syscall_64+0xc6/0x1e0
[ 5498.383720][   T73] 
[ 5498.386241][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5498.386241][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5498.386241][   T73]      ipv6_find_idev+0x102/0x170
[ 5498.386241][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5498.386241][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5498.386241][   T73]      netlink_rcv_skb+0x130/0x360
[ 5498.386241][   T73]      netlink_unicast+0x449/0x710
[ 5498.386241][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5498.386241][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5498.386241][   T73]      ___sys_sendmsg+0xee/0x170
[ 5498.386241][   T73]      __sys_sendmsg+0xcd/0x170
[ 5498.386241][   T73]      do_syscall_64+0xc6/0x1e0
[ 5498.386241][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5498.386241][   T73] 
[ 5498.388183][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5498.388183][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5498.388183][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5498.388183][   T73]      ipv6_find_idev+0x102/0x170
[ 5498.388183][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5498.388183][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5498.388183][   T73]      netlink_rcv_skb+0x130/0x360
[ 5498.388183][   T73]      netlink_unicast+0x449/0x710
[ 5498.388183][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5498.388183][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5498.388183][   T73]      ___sys_sendmsg+0xee/0x170
[ 5498.388183][   T73]      __sys_sendmsg+0xcd/0x170
[ 5498.388183][   T73]      do_syscall_64+0xc6/0x1e0
[ 5498.388183][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5498.388183][   T73] 
[ 5498.390266][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5498.390659][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5498.390659][   T73]      netdev_get_by_index+0x5e/0x80
[ 5498.390659][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5498.390659][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5498.390659][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5498.390659][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5498.390659][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5498.390659][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5498.390659][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5498.390659][   T73]      addrconf_dad_begin+0x310/0x670
[ 5498.390659][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5498.390659][   T73]      process_one_work+0x84d/0x18a0
[ 5498.390659][   T73]      worker_thread+0x587/0xd30
[ 5498.390659][   T73]      kthread+0x28a/0x350
[ 5498.390659][   T73]      ret_from_fork+0x31/0x70
[ 5498.390659][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5498.390659][   T73] 
[ 5498.392928][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5498.392928][   T73]      netdev_get_by_index+0x5e/0x80
[ 5498.392928][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5498.392928][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5498.392928][   T73]      ip6_route_add+0x1c/0x140
[ 5498.392928][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5498.392928][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5498.392928][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5498.392928][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5498.392928][   T73]      netlink_rcv_skb+0x130/0x360
[ 5498.392928][   T73]      netlink_unicast+0x449/0x710
[ 5498.392928][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5498.392928][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5498.392928][   T73]      ___sys_sendmsg+0xee/0x170
[ 5498.392928][   T73]      __sys_sendmsg+0xcd/0x170
[ 5498.392928][   T73]      do_syscall_64+0xc6/0x1e0
[ 5498.392928][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5498.392928][   T73] 
[ 5498.395497][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5498.395497][   T73]      netdev_get_by_index+0x5e/0x80
[ 5498.395497][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5498.395497][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5498.395497][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5498.395497][   T73]      ipv6_add_addr+0x411/0x2000
[ 5498.395497][   T73]      inet6_addr_add+0x30e/0xa40
[ 5498.395497][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5498.395497][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5498.395497][   T73]      netlink_rcv_skb+0x130/0x360
[ 5498.395497][   T73]      netlink_unicast+0x449/0x710
[ 5498.395497][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5498.395497][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5498.395497][   T73]      ___sys_sendmsg+0xee/0x170
[ 5498.395497][   T73]      __sys_sendmsg+0xcd/0x170
[ 5498.395497][   T73]      do_syscall_64+0xc6/0x1e0
[ 5498.395497][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5498.395497][   T73] 
[ 5498.397997][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5498.397997][   T73]      netdev_get_by_index+0x5e/0x80
[ 5498.397997][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5498.397997][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5498.397997][   T73]      ip6_route_add+0x1c/0x140
[ 5498.397997][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5498.397997][   T73]      addrconf_add_dev+0xe2/0x170
[ 5498.397997][   T73]      inet6_addr_add+0x12f/0xa40
[ 5498.397997][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5498.397997][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5498.397997][   T73]      netlink_rcv_skb+0x130/0x360
[ 5498.397997][   T73]      netlink_unicast+0x449/0x710
[ 5498.397997][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5498.397997][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5498.397997][   T73]      ___sys_sendmsg+0xee/0x170
[ 5498.397997][   T73]      __sys_sendmsg+0xcd/0x170
[ 5498.397997][   T73]      do_syscall_64+0xc6/0x1e0
[ 5498.397997][   T73] 
[ 5498.400448][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5498.400448][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5498.400448][   T73]      ipv6_find_idev+0x102/0x170
[ 5498.400448][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5498.400448][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5498.400448][   T73]      netlink_rcv_skb+0x130/0x360
[ 5498.400448][   T73]      netlink_unicast+0x449/0x710
[ 5498.400448][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5498.400448][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5498.400448][   T73]      ___sys_sendmsg+0xee/0x170
[ 5498.400448][   T73]      __sys_sendmsg+0xcd/0x170
[ 5498.400448][   T73]      do_syscall_64+0xc6/0x1e0
[ 5498.400448][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5498.400448][   T73] 
[ 5498.402360][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5498.402360][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5498.402360][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5498.402360][   T73]      ipv6_find_idev+0x102/0x170
[ 5498.402360][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5498.402360][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5498.402360][   T73]      netlink_rcv_skb+0x130/0x360
[ 5498.402360][   T73]      netlink_unicast+0x449/0x710
[ 5498.402360][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5498.402360][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5498.402360][   T73]      ___sys_sendmsg+0xee/0x170
[ 5498.402360][   T73]      __sys_sendmsg+0xcd/0x170
[ 5498.402360][   T73]      do_syscall_64+0xc6/0x1e0
[ 5498.402360][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5498.402360][   T73] 
[ 5508.647828][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5508.648328][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5508.648328][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5508.648328][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5508.648328][   T73]      fib6_nh_init+0xa22/0x1580
[ 5508.648328][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5508.648328][   T73]      ip6_route_add+0x1c/0x140
[ 5508.648328][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5508.648328][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5508.648328][   T73]      netlink_rcv_skb+0x130/0x360
[ 5508.648328][   T73]      netlink_unicast+0x449/0x710
[ 5508.648328][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5508.648328][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5508.648328][   T73]      ___sys_sendmsg+0xee/0x170
[ 5508.648328][   T73]      __sys_sendmsg+0xcd/0x170
[ 5508.648328][   T73]      do_syscall_64+0xc6/0x1e0
[ 5508.648328][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5508.648328][   T73] 
[ 5508.650263][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5508.650263][   T73]      dst_init+0x84/0x4a0
[ 5508.650263][   T73]      dst_alloc+0x97/0x150
[ 5508.650263][   T73]      ip6_dst_alloc+0x23/0x90
[ 5508.650263][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5508.650263][   T73]      ip6_pol_route+0x56f/0x840
[ 5508.650263][   T73]      fib6_rule_lookup+0x456/0x630
[ 5508.650263][   T73]      ip6_route_input+0x59c/0xa50
[ 5508.650263][   T73]      ipv6_rcv+0x397/0x810
[ 5508.650263][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5508.650263][   T73]      process_backlog+0x101/0x620
[ 5508.650263][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5508.650263][   T73]      net_rx_action+0x495/0xbe0
[ 5508.650263][   T73]      __do_softirq+0x1b5/0x7f6
[ 5508.650263][   T73] 
[ 5508.651918][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5508.651918][   T73]      netdev_get_by_index+0x5e/0x80
[ 5508.651918][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5508.651918][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5508.651918][   T73]      ip6_route_add+0x1c/0x140
[ 5508.651918][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5508.651918][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5508.651918][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5508.651918][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5508.651918][   T73]      netlink_rcv_skb+0x130/0x360
[ 5508.651918][   T73]      netlink_unicast+0x449/0x710
[ 5508.651918][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5508.651918][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5508.651918][   T73]      ___sys_sendmsg+0xee/0x170
[ 5508.651918][   T73]      __sys_sendmsg+0xcd/0x170
[ 5508.651918][   T73]      do_syscall_64+0xc6/0x1e0
[ 5508.651918][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5508.651918][   T73] 
[ 5508.653941][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5508.653941][   T73]      netdev_get_by_index+0x5e/0x80
[ 5508.653941][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5508.653941][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5508.653941][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5508.653941][   T73]      ipv6_add_addr+0x411/0x2000
[ 5508.653941][   T73]      inet6_addr_add+0x30e/0xa40
[ 5508.653941][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5508.653941][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5508.653941][   T73]      netlink_rcv_skb+0x130/0x360
[ 5508.653941][   T73]      netlink_unicast+0x449/0x710
[ 5508.653941][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5508.653941][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5508.653941][   T73]      ___sys_sendmsg+0xee/0x170
[ 5508.653941][   T73]      __sys_sendmsg+0xcd/0x170
[ 5508.653941][   T73]      do_syscall_64+0xc6/0x1e0
[ 5508.653941][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5508.653941][   T73] 
[ 5508.655952][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5508.655952][   T73]      netdev_get_by_index+0x5e/0x80
[ 5508.655952][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5508.655952][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5508.655952][   T73]      ip6_route_add+0x1c/0x140
[ 5508.655952][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5508.655952][   T73]      addrconf_add_dev+0xe2/0x170
[ 5508.655952][   T73]      inet6_addr_add+0x12f/0xa40
[ 5508.655952][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5508.655952][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5508.655952][   T73]      netlink_rcv_skb+0x130/0x360
[ 5508.655952][   T73]      netlink_unicast+0x449/0x710
[ 5508.655952][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5508.655952][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5508.655952][   T73]      ___sys_sendmsg+0xee/0x170
[ 5508.655952][   T73]      __sys_sendmsg+0xcd/0x170
[ 5508.655952][   T73]      do_syscall_64+0xc6/0x1e0
[ 5508.655952][   T73] 
[ 5508.657949][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5508.657949][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5508.657949][   T73]      ipv6_find_idev+0x102/0x170
[ 5508.657949][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5508.657949][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5508.657949][   T73]      netlink_rcv_skb+0x130/0x360
[ 5508.657949][   T73]      netlink_unicast+0x449/0x710
[ 5508.657949][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5508.657949][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5508.657949][   T73]      ___sys_sendmsg+0xee/0x170
[ 5508.657949][   T73]      __sys_sendmsg+0xcd/0x170
[ 5508.657949][   T73]      do_syscall_64+0xc6/0x1e0
[ 5508.657949][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5508.657949][   T73] 
[ 5508.659511][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5508.659511][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5508.659511][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5508.659511][   T73]      ipv6_find_idev+0x102/0x170
[ 5508.659511][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5508.659511][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5508.659511][   T73]      netlink_rcv_skb+0x130/0x360
[ 5508.659511][   T73]      netlink_unicast+0x449/0x710
[ 5508.659511][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5508.659511][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5508.659511][   T73]      ___sys_sendmsg+0xee/0x170
[ 5508.659511][   T73]      __sys_sendmsg+0xcd/0x170
[ 5508.659511][   T73]      do_syscall_64+0xc6/0x1e0
[ 5508.659511][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5508.659511][   T73] 
[ 5508.661236][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5508.661526][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5508.661526][   T73]      netdev_get_by_index+0x5e/0x80
[ 5508.661526][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5508.661526][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5508.661526][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5508.661526][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5508.661526][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5508.661526][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5508.661526][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5508.661526][   T73]      addrconf_dad_begin+0x310/0x670
[ 5508.661526][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5508.661526][   T73]      process_one_work+0x84d/0x18a0
[ 5508.661526][   T73]      worker_thread+0x587/0xd30
[ 5508.661526][   T73]      kthread+0x28a/0x350
[ 5508.661526][   T73]      ret_from_fork+0x31/0x70
[ 5508.661526][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5508.661526][   T73] 
[ 5508.663458][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5508.663458][   T73]      netdev_get_by_index+0x5e/0x80
[ 5508.663458][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5508.663458][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5508.663458][   T73]      ip6_route_add+0x1c/0x140
[ 5508.663458][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5508.663458][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5508.663458][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5508.663458][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5508.663458][   T73]      netlink_rcv_skb+0x130/0x360
[ 5508.663458][   T73]      netlink_unicast+0x449/0x710
[ 5508.663458][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5508.663458][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5508.663458][   T73]      ___sys_sendmsg+0xee/0x170
[ 5508.663458][   T73]      __sys_sendmsg+0xcd/0x170
[ 5508.663458][   T73]      do_syscall_64+0xc6/0x1e0
[ 5508.663458][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5508.663458][   T73] 
[ 5508.665478][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5508.665478][   T73]      netdev_get_by_index+0x5e/0x80
[ 5508.665478][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5508.665478][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5508.665478][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5508.665478][   T73]      ipv6_add_addr+0x411/0x2000
[ 5508.665478][   T73]      inet6_addr_add+0x30e/0xa40
[ 5508.665478][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5508.665478][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5508.665478][   T73]      netlink_rcv_skb+0x130/0x360
[ 5508.665478][   T73]      netlink_unicast+0x449/0x710
[ 5508.665478][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5508.665478][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5508.665478][   T73]      ___sys_sendmsg+0xee/0x170
[ 5508.665478][   T73]      __sys_sendmsg+0xcd/0x170
[ 5508.665478][   T73]      do_syscall_64+0xc6/0x1e0
[ 5508.665478][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5508.665478][   T73] 
[ 5508.667535][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5508.667535][   T73]      netdev_get_by_index+0x5e/0x80
[ 5508.667535][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5508.667535][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5508.667535][   T73]      ip6_route_add+0x1c/0x140
[ 5508.667535][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5508.667535][   T73]      addrconf_add_dev+0xe2/0x170
[ 5508.667535][   T73]      inet6_addr_add+0x12f/0xa40
[ 5508.667535][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5508.667535][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5508.667535][   T73]      netlink_rcv_skb+0x130/0x360
[ 5508.667535][   T73]      netlink_unicast+0x449/0x710
[ 5508.667535][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5508.667535][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5508.667535][   T73]      ___sys_sendmsg+0xee/0x170
[ 5508.667535][   T73]      __sys_sendmsg+0xcd/0x170
[ 5508.667535][   T73]      do_syscall_64+0xc6/0x1e0
[ 5508.667535][   T73] 
[ 5508.669533][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5508.669533][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5508.669533][   T73]      ipv6_find_idev+0x102/0x170
[ 5508.669533][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5508.669533][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5508.669533][   T73]      netlink_rcv_skb+0x130/0x360
[ 5508.669533][   T73]      netlink_unicast+0x449/0x710
[ 5508.669533][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5508.669533][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5508.669533][   T73]      ___sys_sendmsg+0xee/0x170
[ 5508.669533][   T73]      __sys_sendmsg+0xcd/0x170
[ 5508.669533][   T73]      do_syscall_64+0xc6/0x1e0
[ 5508.669533][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5508.669533][   T73] 
[ 5508.671094][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5508.671094][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5508.671094][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5508.671094][   T73]      ipv6_find_idev+0x102/0x170
[ 5508.671094][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5508.671094][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5508.671094][   T73]      netlink_rcv_skb+0x130/0x360
[ 5508.671094][   T73]      netlink_unicast+0x449/0x710
[ 5508.671094][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5508.671094][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5508.671094][   T73]      ___sys_sendmsg+0xee/0x170
[ 5508.671094][   T73]      __sys_sendmsg+0xcd/0x170
[ 5508.671094][   T73]      do_syscall_64+0xc6/0x1e0
[ 5508.671094][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5508.671094][   T73] 
[ 5508.672817][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5508.673089][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5508.673089][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5508.673089][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5508.673089][   T73]      fib6_nh_init+0xa22/0x1580
[ 5508.673089][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5508.673089][   T73]      ip6_route_add+0x1c/0x140
[ 5508.673089][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5508.673089][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5508.673089][   T73]      netlink_rcv_skb+0x130/0x360
[ 5508.673089][   T73]      netlink_unicast+0x449/0x710
[ 5508.673089][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5508.673089][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5508.673089][   T73]      ___sys_sendmsg+0xee/0x170
[ 5508.673089][   T73]      __sys_sendmsg+0xcd/0x170
[ 5508.673089][   T73]      do_syscall_64+0xc6/0x1e0
[ 5508.673089][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5508.673089][   T73] 
[ 5508.675183][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5508.675183][   T73]      dst_init+0x84/0x4a0
[ 5508.675183][   T73]      dst_alloc+0x97/0x150
[ 5508.675183][   T73]      ip6_dst_alloc+0x23/0x90
[ 5508.675183][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5508.675183][   T73]      ip6_pol_route+0x56f/0x840
[ 5508.675183][   T73]      fib6_rule_lookup+0x456/0x630
[ 5508.675183][   T73]      ip6_route_input+0x59c/0xa50
[ 5508.675183][   T73]      ipv6_rcv+0x397/0x810
[ 5508.675183][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5508.675183][   T73]      process_backlog+0x101/0x620
[ 5508.675183][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5508.675183][   T73]      net_rx_action+0x495/0xbe0
[ 5508.675183][   T73]      __do_softirq+0x1b5/0x7f6
[ 5508.675183][   T73] 
[ 5508.677023][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5508.677023][   T73]      netdev_get_by_index+0x5e/0x80
[ 5508.677023][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5508.677023][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5508.677023][   T73]      ip6_route_add+0x1c/0x140
[ 5508.677023][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5508.677023][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5508.677023][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5508.677023][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5508.677023][   T73]      netlink_rcv_skb+0x130/0x360
[ 5508.677023][   T73]      netlink_unicast+0x449/0x710
[ 5508.677023][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5508.677023][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5508.677023][   T73]      ___sys_sendmsg+0xee/0x170
[ 5508.677023][   T73]      __sys_sendmsg+0xcd/0x170
[ 5508.677023][   T73]      do_syscall_64+0xc6/0x1e0
[ 5508.677023][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5508.677023][   T73] 
[ 5508.679350][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5508.679350][   T73]      netdev_get_by_index+0x5e/0x80
[ 5508.679350][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5508.679350][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5508.679350][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5508.679350][   T73]      ipv6_add_addr+0x411/0x2000
[ 5508.679350][   T73]      inet6_addr_add+0x30e/0xa40
[ 5508.679350][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5508.679350][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5508.679350][   T73]      netlink_rcv_skb+0x130/0x360
[ 5508.679350][   T73]      netlink_unicast+0x449/0x710
[ 5508.679350][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5508.679350][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5508.679350][   T73]      ___sys_sendmsg+0xee/0x170
[ 5508.679350][   T73]      __sys_sendmsg+0xcd/0x170
[ 5508.679350][   T73]      do_syscall_64+0xc6/0x1e0
[ 5508.679350][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5508.679350][   T73] 
[ 5508.681612][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5508.681612][   T73]      netdev_get_by_index+0x5e/0x80
[ 5508.681612][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5508.681612][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5508.681612][   T73]      ip6_route_add+0x1c/0x140
[ 5508.681612][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5508.681612][   T73]      addrconf_add_dev+0xe2/0x170
[ 5508.681612][   T73]      inet6_addr_add+0x12f/0xa40
[ 5508.681612][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5508.681612][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5508.681612][   T73]      netlink_rcv_skb+0x130/0x360
[ 5508.681612][   T73]      netlink_unicast+0x449/0x710
[ 5508.681612][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5508.681612][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5508.681612][   T73]      ___sys_sendmsg+0xee/0x170
[ 5508.681612][   T73]      __sys_sendmsg+0xcd/0x170
[ 5508.681612][   T73]      do_syscall_64+0xc6/0x1e0
[ 5508.681612][   T73] 
[ 5508.683852][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5508.683852][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5508.683852][   T73]      ipv6_find_idev+0x102/0x170
[ 5508.683852][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5508.683852][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5508.683852][   T73]      netlink_rcv_skb+0x130/0x360
[ 5508.683852][   T73]      netlink_unicast+0x449/0x710
[ 5508.683852][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5508.683852][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5508.683852][   T73]      ___sys_sendmsg+0xee/0x170
[ 5508.683852][   T73]      __sys_sendmsg+0xcd/0x170
[ 5508.683852][   T73]      do_syscall_64+0xc6/0x1e0
[ 5508.683852][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5508.683852][   T73] 
[ 5508.685592][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5508.685592][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5508.685592][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5508.685592][   T73]      ipv6_find_idev+0x102/0x170
[ 5508.685592][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5508.685592][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5508.685592][   T73]      netlink_rcv_skb+0x130/0x360
[ 5508.685592][   T73]      netlink_unicast+0x449/0x710
[ 5508.685592][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5508.685592][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5508.685592][   T73]      ___sys_sendmsg+0xee/0x170
[ 5508.685592][   T73]      __sys_sendmsg+0xcd/0x170
[ 5508.685592][   T73]      do_syscall_64+0xc6/0x1e0
[ 5508.685592][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5508.685592][   T73] 
[ 5508.687551][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5508.688264][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5508.688264][   T73]      netdev_get_by_index+0x5e/0x80
[ 5508.688264][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5508.688264][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5508.688264][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5508.688264][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5508.688264][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5508.688264][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5508.688264][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5508.688264][   T73]      addrconf_dad_begin+0x310/0x670
[ 5508.688264][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5508.688264][   T73]      process_one_work+0x84d/0x18a0
[ 5508.688264][   T73]      worker_thread+0x587/0xd30
[ 5508.688264][   T73]      kthread+0x28a/0x350
[ 5508.688264][   T73]      ret_from_fork+0x31/0x70
[ 5508.688264][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5508.688264][   T73] 
[ 5508.690218][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5508.690218][   T73]      netdev_get_by_index+0x5e/0x80
[ 5508.690218][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5508.690218][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5508.690218][   T73]      ip6_route_add+0x1c/0x140
[ 5508.690218][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5508.690218][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5508.690218][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5508.690218][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5508.690218][   T73]      netlink_rcv_skb+0x130/0x360
[ 5508.690218][   T73]      netlink_unicast+0x449/0x710
[ 5508.690218][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5508.690218][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5508.690218][   T73]      ___sys_sendmsg+0xee/0x170
[ 5508.690218][   T73]      __sys_sendmsg+0xcd/0x170
[ 5508.690218][   T73]      do_syscall_64+0xc6/0x1e0
[ 5508.690218][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5508.690218][   T73] 
[ 5508.692363][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5508.692363][   T73]      netdev_get_by_index+0x5e/0x80
[ 5508.692363][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5508.692363][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5508.692363][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5508.692363][   T73]      ipv6_add_addr+0x411/0x2000
[ 5508.692363][   T73]      inet6_addr_add+0x30e/0xa40
[ 5508.692363][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5508.692363][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5508.692363][   T73]      netlink_rcv_skb+0x130/0x360
[ 5508.692363][   T73]      netlink_unicast+0x449/0x710
[ 5508.692363][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5508.692363][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5508.692363][   T73]      ___sys_sendmsg+0xee/0x170
[ 5508.692363][   T73]      __sys_sendmsg+0xcd/0x170
[ 5508.692363][   T73]      do_syscall_64+0xc6/0x1e0
[ 5508.692363][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5508.692363][   T73] 
[ 5508.694647][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5508.694647][   T73]      netdev_get_by_index+0x5e/0x80
[ 5508.694647][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5508.694647][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5508.694647][   T73]      ip6_route_add+0x1c/0x140
[ 5508.694647][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5508.694647][   T73]      addrconf_add_dev+0xe2/0x170
[ 5508.694647][   T73]      inet6_addr_add+0x12f/0xa40
[ 5508.694647][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5508.694647][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5508.694647][   T73]      netlink_rcv_skb+0x130/0x360
[ 5508.694647][   T73]      netlink_unicast+0x449/0x710
[ 5508.694647][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5508.694647][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5508.694647][   T73]      ___sys_sendmsg+0xee/0x170
[ 5508.694647][   T73]      __sys_sendmsg+0xcd/0x170
[ 5508.694647][   T73]      do_syscall_64+0xc6/0x1e0
[ 5508.694647][   T73] 
[ 5508.696815][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5508.696815][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5508.696815][   T73]      ipv6_find_idev+0x102/0x170
[ 5508.696815][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5508.696815][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5508.696815][   T73]      netlink_rcv_skb+0x130/0x360
[ 5508.696815][   T73]      netlink_unicast+0x449/0x710
[ 5508.696815][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5508.696815][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5508.696815][   T73]      ___sys_sendmsg+0xee/0x170
[ 5508.696815][   T73]      __sys_sendmsg+0xcd/0x170
[ 5508.696815][   T73]      do_syscall_64+0xc6/0x1e0
[ 5508.696815][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5508.696815][   T73] 
[ 5508.698557][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5508.698557][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5508.698557][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5508.698557][   T73]      ipv6_find_idev+0x102/0x170
[ 5508.698557][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5508.698557][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5508.698557][   T73]      netlink_rcv_skb+0x130/0x360
[ 5508.698557][   T73]      netlink_unicast+0x449/0x710
[ 5508.698557][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5508.698557][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5508.698557][   T73]      ___sys_sendmsg+0xee/0x170
[ 5508.698557][   T73]      __sys_sendmsg+0xcd/0x170
[ 5508.698557][   T73]      do_syscall_64+0xc6/0x1e0
[ 5508.698557][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5508.698557][   T73] 
[ 5518.935768][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5518.936298][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5518.936298][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5518.936298][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5518.936298][   T73]      fib6_nh_init+0xa22/0x1580
[ 5518.936298][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5518.936298][   T73]      ip6_route_add+0x1c/0x140
[ 5518.936298][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5518.936298][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5518.936298][   T73]      netlink_rcv_skb+0x130/0x360
[ 5518.936298][   T73]      netlink_unicast+0x449/0x710
[ 5518.936298][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5518.936298][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5518.936298][   T73]      ___sys_sendmsg+0xee/0x170
[ 5518.936298][   T73]      __sys_sendmsg+0xcd/0x170
[ 5518.936298][   T73]      do_syscall_64+0xc6/0x1e0
[ 5518.936298][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5518.936298][   T73] 
[ 5518.938443][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5518.938443][   T73]      dst_init+0x84/0x4a0
[ 5518.938443][   T73]      dst_alloc+0x97/0x150
[ 5518.938443][   T73]      ip6_dst_alloc+0x23/0x90
[ 5518.938443][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5518.938443][   T73]      ip6_pol_route+0x56f/0x840
[ 5518.938443][   T73]      fib6_rule_lookup+0x456/0x630
[ 5518.938443][   T73]      ip6_route_input+0x59c/0xa50
[ 5518.938443][   T73]      ipv6_rcv+0x397/0x810
[ 5518.938443][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5518.938443][   T73]      process_backlog+0x101/0x620
[ 5518.938443][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5518.938443][   T73]      net_rx_action+0x495/0xbe0
[ 5518.938443][   T73]      __do_softirq+0x1b5/0x7f6
[ 5518.938443][   T73] 
[ 5518.940316][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5518.940316][   T73]      netdev_get_by_index+0x5e/0x80
[ 5518.940316][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5518.940316][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5518.940316][   T73]      ip6_route_add+0x1c/0x140
[ 5518.940316][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5518.940316][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5518.940316][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5518.940316][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5518.940316][   T73]      netlink_rcv_skb+0x130/0x360
[ 5518.940316][   T73]      netlink_unicast+0x449/0x710
[ 5518.940316][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5518.940316][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5518.940316][   T73]      ___sys_sendmsg+0xee/0x170
[ 5518.940316][   T73]      __sys_sendmsg+0xcd/0x170
[ 5518.940316][   T73]      do_syscall_64+0xc6/0x1e0
[ 5518.940316][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5518.940316][   T73] 
[ 5518.942564][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5518.942564][   T73]      netdev_get_by_index+0x5e/0x80
[ 5518.942564][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5518.942564][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5518.942564][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5518.942564][   T73]      ipv6_add_addr+0x411/0x2000
[ 5518.942564][   T73]      inet6_addr_add+0x30e/0xa40
[ 5518.942564][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5518.942564][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5518.942564][   T73]      netlink_rcv_skb+0x130/0x360
[ 5518.942564][   T73]      netlink_unicast+0x449/0x710
[ 5518.942564][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5518.942564][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5518.942564][   T73]      ___sys_sendmsg+0xee/0x170
[ 5518.942564][   T73]      __sys_sendmsg+0xcd/0x170
[ 5518.942564][   T73]      do_syscall_64+0xc6/0x1e0
[ 5518.942564][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5518.942564][   T73] 
[ 5518.944831][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5518.944831][   T73]      netdev_get_by_index+0x5e/0x80
[ 5518.944831][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5518.944831][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5518.944831][   T73]      ip6_route_add+0x1c/0x140
[ 5518.944831][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5518.944831][   T73]      addrconf_add_dev+0xe2/0x170
[ 5518.944831][   T73]      inet6_addr_add+0x12f/0xa40
[ 5518.944831][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5518.944831][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5518.944831][   T73]      netlink_rcv_skb+0x130/0x360
[ 5518.944831][   T73]      netlink_unicast+0x449/0x710
[ 5518.944831][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5518.944831][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5518.944831][   T73]      ___sys_sendmsg+0xee/0x170
[ 5518.944831][   T73]      __sys_sendmsg+0xcd/0x170
[ 5518.944831][   T73]      do_syscall_64+0xc6/0x1e0
[ 5518.944831][   T73] 
[ 5518.947043][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5518.947043][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5518.947043][   T73]      ipv6_find_idev+0x102/0x170
[ 5518.947043][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5518.947043][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5518.947043][   T73]      netlink_rcv_skb+0x130/0x360
[ 5518.947043][   T73]      netlink_unicast+0x449/0x710
[ 5518.947043][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5518.947043][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5518.947043][   T73]      ___sys_sendmsg+0xee/0x170
[ 5518.947043][   T73]      __sys_sendmsg+0xcd/0x170
[ 5518.947043][   T73]      do_syscall_64+0xc6/0x1e0
[ 5518.947043][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5518.947043][   T73] 
[ 5518.948770][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5518.948770][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5518.948770][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5518.948770][   T73]      ipv6_find_idev+0x102/0x170
[ 5518.948770][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5518.948770][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5518.948770][   T73]      netlink_rcv_skb+0x130/0x360
[ 5518.948770][   T73]      netlink_unicast+0x449/0x710
[ 5518.948770][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5518.948770][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5518.948770][   T73]      ___sys_sendmsg+0xee/0x170
[ 5518.948770][   T73]      __sys_sendmsg+0xcd/0x170
[ 5518.948770][   T73]      do_syscall_64+0xc6/0x1e0
[ 5518.948770][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5518.948770][   T73] 
[ 5518.950668][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5518.950990][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5518.950990][   T73]      netdev_get_by_index+0x5e/0x80
[ 5518.950990][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5518.950990][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5518.950990][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5518.950990][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5518.950990][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5518.950990][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5518.950990][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5518.950990][   T73]      addrconf_dad_begin+0x310/0x670
[ 5518.950990][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5518.950990][   T73]      process_one_work+0x84d/0x18a0
[ 5518.950990][   T73]      worker_thread+0x587/0xd30
[ 5518.950990][   T73]      kthread+0x28a/0x350
[ 5518.950990][   T73]      ret_from_fork+0x31/0x70
[ 5518.950990][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5518.950990][   T73] 
[ 5518.953133][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5518.953133][   T73]      netdev_get_by_index+0x5e/0x80
[ 5518.953133][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5518.953133][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5518.953133][   T73]      ip6_route_add+0x1c/0x140
[ 5518.953133][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5518.953133][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5518.953133][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5518.953133][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5518.953133][   T73]      netlink_rcv_skb+0x130/0x360
[ 5518.953133][   T73]      netlink_unicast+0x449/0x710
[ 5518.953133][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5518.953133][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5518.953133][   T73]      ___sys_sendmsg+0xee/0x170
[ 5518.953133][   T73]      __sys_sendmsg+0xcd/0x170
[ 5518.953133][   T73]      do_syscall_64+0xc6/0x1e0
[ 5518.953133][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5518.953133][   T73] 
[ 5518.955383][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5518.955383][   T73]      netdev_get_by_index+0x5e/0x80
[ 5518.955383][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5518.955383][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5518.955383][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5518.955383][   T73]      ipv6_add_addr+0x411/0x2000
[ 5518.955383][   T73]      inet6_addr_add+0x30e/0xa40
[ 5518.955383][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5518.955383][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5518.955383][   T73]      netlink_rcv_skb+0x130/0x360
[ 5518.955383][   T73]      netlink_unicast+0x449/0x710
[ 5518.955383][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5518.955383][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5518.955383][   T73]      ___sys_sendmsg+0xee/0x170
[ 5518.955383][   T73]      __sys_sendmsg+0xcd/0x170
[ 5518.955383][   T73]      do_syscall_64+0xc6/0x1e0
[ 5518.955383][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5518.955383][   T73] 
[ 5518.957639][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5518.957639][   T73]      netdev_get_by_index+0x5e/0x80
[ 5518.957639][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5518.957639][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5518.957639][   T73]      ip6_route_add+0x1c/0x140
[ 5518.957639][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5518.957639][   T73]      addrconf_add_dev+0xe2/0x170
[ 5518.957639][   T73]      inet6_addr_add+0x12f/0xa40
[ 5518.957639][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5518.957639][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5518.957639][   T73]      netlink_rcv_skb+0x130/0x360
[ 5518.957639][   T73]      netlink_unicast+0x449/0x710
[ 5518.957639][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5518.957639][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5518.957639][   T73]      ___sys_sendmsg+0xee/0x170
[ 5518.957639][   T73]      __sys_sendmsg+0xcd/0x170
[ 5518.957639][   T73]      do_syscall_64+0xc6/0x1e0
[ 5518.957639][   T73] 
[ 5518.959858][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5518.959858][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5518.959858][   T73]      ipv6_find_idev+0x102/0x170
[ 5518.959858][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5518.959858][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5518.959858][   T73]      netlink_rcv_skb+0x130/0x360
[ 5518.959858][   T73]      netlink_unicast+0x449/0x710
[ 5518.959858][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5518.959858][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5518.959858][   T73]      ___sys_sendmsg+0xee/0x170
[ 5518.959858][   T73]      __sys_sendmsg+0xcd/0x170
[ 5518.959858][   T73]      do_syscall_64+0xc6/0x1e0
[ 5518.959858][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5518.959858][   T73] 
[ 5518.961584][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5518.961584][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5518.961584][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5518.961584][   T73]      ipv6_find_idev+0x102/0x170
[ 5518.961584][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5518.961584][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5518.961584][   T73]      netlink_rcv_skb+0x130/0x360
[ 5518.961584][   T73]      netlink_unicast+0x449/0x710
[ 5518.961584][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5518.961584][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5518.961584][   T73]      ___sys_sendmsg+0xee/0x170
[ 5518.961584][   T73]      __sys_sendmsg+0xcd/0x170
[ 5518.961584][   T73]      do_syscall_64+0xc6/0x1e0
[ 5518.961584][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5518.961584][   T73] 
[ 5518.963476][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5518.963783][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5518.963783][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5518.963783][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5518.963783][   T73]      fib6_nh_init+0xa22/0x1580
[ 5518.963783][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5518.963783][   T73]      ip6_route_add+0x1c/0x140
[ 5518.963783][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5518.963783][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5518.963783][   T73]      netlink_rcv_skb+0x130/0x360
[ 5518.963783][   T73]      netlink_unicast+0x449/0x710
[ 5518.963783][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5518.963783][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5518.963783][   T73]      ___sys_sendmsg+0xee/0x170
[ 5518.963783][   T73]      __sys_sendmsg+0xcd/0x170
[ 5518.963783][   T73]      do_syscall_64+0xc6/0x1e0
[ 5518.963783][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5518.963783][   T73] 
[ 5518.966090][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5518.966090][   T73]      dst_init+0x84/0x4a0
[ 5518.966090][   T73]      dst_alloc+0x97/0x150
[ 5518.966090][   T73]      ip6_dst_alloc+0x23/0x90
[ 5518.966090][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5518.966090][   T73]      ip6_pol_route+0x56f/0x840
[ 5518.966090][   T73]      fib6_rule_lookup+0x456/0x630
[ 5518.966090][   T73]      ip6_route_input+0x59c/0xa50
[ 5518.966090][   T73]      ipv6_rcv+0x397/0x810
[ 5518.966090][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5518.966090][   T73]      process_backlog+0x101/0x620
[ 5518.966090][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5518.966090][   T73]      net_rx_action+0x495/0xbe0
[ 5518.966090][   T73]      __do_softirq+0x1b5/0x7f6
[ 5518.966090][   T73] 
[ 5518.968179][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5518.968179][   T73]      netdev_get_by_index+0x5e/0x80
[ 5518.968179][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5518.968179][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5518.968179][   T73]      ip6_route_add+0x1c/0x140
[ 5518.968179][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5518.968179][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5518.968179][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5518.968179][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5518.968179][   T73]      netlink_rcv_skb+0x130/0x360
[ 5518.968179][   T73]      netlink_unicast+0x449/0x710
[ 5518.968179][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5518.968179][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5518.968179][   T73]      ___sys_sendmsg+0xee/0x170
[ 5518.968179][   T73]      __sys_sendmsg+0xcd/0x170
[ 5518.968179][   T73]      do_syscall_64+0xc6/0x1e0
[ 5518.968179][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5518.968179][   T73] 
[ 5518.970692][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5518.970692][   T73]      netdev_get_by_index+0x5e/0x80
[ 5518.970692][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5518.970692][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5518.970692][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5518.970692][   T73]      ipv6_add_addr+0x411/0x2000
[ 5518.970692][   T73]      inet6_addr_add+0x30e/0xa40
[ 5518.970692][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5518.970692][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5518.970692][   T73]      netlink_rcv_skb+0x130/0x360
[ 5518.970692][   T73]      netlink_unicast+0x449/0x710
[ 5518.970692][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5518.970692][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5518.970692][   T73]      ___sys_sendmsg+0xee/0x170
[ 5518.970692][   T73]      __sys_sendmsg+0xcd/0x170
[ 5518.970692][   T73]      do_syscall_64+0xc6/0x1e0
[ 5518.970692][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5518.970692][   T73] 
[ 5518.973137][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5518.973137][   T73]      netdev_get_by_index+0x5e/0x80
[ 5518.973137][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5518.973137][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5518.973137][   T73]      ip6_route_add+0x1c/0x140
[ 5518.973137][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5518.973137][   T73]      addrconf_add_dev+0xe2/0x170
[ 5518.973137][   T73]      inet6_addr_add+0x12f/0xa40
[ 5518.973137][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5518.973137][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5518.973137][   T73]      netlink_rcv_skb+0x130/0x360
[ 5518.973137][   T73]      netlink_unicast+0x449/0x710
[ 5518.973137][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5518.973137][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5518.973137][   T73]      ___sys_sendmsg+0xee/0x170
[ 5518.973137][   T73]      __sys_sendmsg+0xcd/0x170
[ 5518.973137][   T73]      do_syscall_64+0xc6/0x1e0
[ 5518.973137][   T73] 
[ 5518.975600][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5518.975600][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5518.975600][   T73]      ipv6_find_idev+0x102/0x170
[ 5518.975600][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5518.975600][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5518.975600][   T73]      netlink_rcv_skb+0x130/0x360
[ 5518.975600][   T73]      netlink_unicast+0x449/0x710
[ 5518.975600][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5518.975600][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5518.975600][   T73]      ___sys_sendmsg+0xee/0x170
[ 5518.975600][   T73]      __sys_sendmsg+0xcd/0x170
[ 5518.975600][   T73]      do_syscall_64+0xc6/0x1e0
[ 5518.975600][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5518.975600][   T73] 
[ 5518.977586][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5518.977586][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5518.977586][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5518.977586][   T73]      ipv6_find_idev+0x102/0x170
[ 5518.977586][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5518.977586][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5518.977586][   T73]      netlink_rcv_skb+0x130/0x360
[ 5518.977586][   T73]      netlink_unicast+0x449/0x710
[ 5518.977586][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5518.977586][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5518.977586][   T73]      ___sys_sendmsg+0xee/0x170
[ 5518.977586][   T73]      __sys_sendmsg+0xcd/0x170
[ 5518.977586][   T73]      do_syscall_64+0xc6/0x1e0
[ 5518.977586][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5518.977586][   T73] 
[ 5518.979675][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5518.980059][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5518.980059][   T73]      netdev_get_by_index+0x5e/0x80
[ 5518.980059][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5518.980059][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5518.980059][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5518.980059][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5518.980059][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5518.980059][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5518.980059][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5518.980059][   T73]      addrconf_dad_begin+0x310/0x670
[ 5518.980059][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5518.980059][   T73]      process_one_work+0x84d/0x18a0
[ 5518.980059][   T73]      worker_thread+0x587/0xd30
[ 5518.980059][   T73]      kthread+0x28a/0x350
[ 5518.980059][   T73]      ret_from_fork+0x31/0x70
[ 5518.980059][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5518.980059][   T73] 
[ 5518.982347][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5518.982347][   T73]      netdev_get_by_index+0x5e/0x80
[ 5518.982347][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5518.982347][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5518.982347][   T73]      ip6_route_add+0x1c/0x140
[ 5518.982347][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5518.982347][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5518.982347][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5518.982347][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5518.982347][   T73]      netlink_rcv_skb+0x130/0x360
[ 5518.982347][   T73]      netlink_unicast+0x449/0x710
[ 5518.982347][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5518.982347][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5518.982347][   T73]      ___sys_sendmsg+0xee/0x170
[ 5518.982347][   T73]      __sys_sendmsg+0xcd/0x170
[ 5518.982347][   T73]      do_syscall_64+0xc6/0x1e0
[ 5518.982347][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5518.982347][   T73] 
[ 5518.984829][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5518.984829][   T73]      netdev_get_by_index+0x5e/0x80
[ 5518.984829][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5518.984829][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5518.984829][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5518.984829][   T73]      ipv6_add_addr+0x411/0x2000
[ 5518.984829][   T73]      inet6_addr_add+0x30e/0xa40
[ 5518.984829][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5518.984829][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5518.984829][   T73]      netlink_rcv_skb+0x130/0x360
[ 5518.984829][   T73]      netlink_unicast+0x449/0x710
[ 5518.984829][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5518.984829][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5518.984829][   T73]      ___sys_sendmsg+0xee/0x170
[ 5518.984829][   T73]      __sys_sendmsg+0xcd/0x170
[ 5518.984829][   T73]      do_syscall_64+0xc6/0x1e0
[ 5518.984829][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5518.984829][   T73] 
[ 5518.987335][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5518.987335][   T73]      netdev_get_by_index+0x5e/0x80
[ 5518.987335][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5518.987335][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5518.987335][   T73]      ip6_route_add+0x1c/0x140
[ 5518.987335][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5518.987335][   T73]      addrconf_add_dev+0xe2/0x170
[ 5518.987335][   T73]      inet6_addr_add+0x12f/0xa40
[ 5518.987335][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5518.987335][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5518.987335][   T73]      netlink_rcv_skb+0x130/0x360
[ 5518.987335][   T73]      netlink_unicast+0x449/0x710
[ 5518.987335][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5518.987335][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5518.987335][   T73]      ___sys_sendmsg+0xee/0x170
[ 5518.987335][   T73]      __sys_sendmsg+0xcd/0x170
[ 5518.987335][   T73]      do_syscall_64+0xc6/0x1e0
[ 5518.987335][   T73] 
[ 5518.989866][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5518.989866][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5518.989866][   T73]      ipv6_find_idev+0x102/0x170
[ 5518.989866][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5518.989866][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5518.989866][   T73]      netlink_rcv_skb+0x130/0x360
[ 5518.989866][   T73]      netlink_unicast+0x449/0x710
[ 5518.989866][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5518.989866][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5518.989866][   T73]      ___sys_sendmsg+0xee/0x170
[ 5518.989866][   T73]      __sys_sendmsg+0xcd/0x170
[ 5518.989866][   T73]      do_syscall_64+0xc6/0x1e0
[ 5518.989866][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5518.989866][   T73] 
[ 5518.991788][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5518.991788][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5518.991788][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5518.991788][   T73]      ipv6_find_idev+0x102/0x170
[ 5518.991788][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5518.991788][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5518.991788][   T73]      netlink_rcv_skb+0x130/0x360
[ 5518.991788][   T73]      netlink_unicast+0x449/0x710
[ 5518.991788][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5518.991788][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5518.991788][   T73]      ___sys_sendmsg+0xee/0x170
[ 5518.991788][   T73]      __sys_sendmsg+0xcd/0x170
[ 5518.991788][   T73]      do_syscall_64+0xc6/0x1e0
[ 5518.991788][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5518.991788][   T73] 
[ 5529.119764][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5529.120265][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5529.120265][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5529.120265][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5529.120265][   T73]      fib6_nh_init+0xa22/0x1580
[ 5529.120265][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5529.120265][   T73]      ip6_route_add+0x1c/0x140
[ 5529.120265][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5529.120265][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5529.120265][   T73]      netlink_rcv_skb+0x130/0x360
[ 5529.120265][   T73]      netlink_unicast+0x449/0x710
[ 5529.120265][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5529.120265][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5529.120265][   T73]      ___sys_sendmsg+0xee/0x170
[ 5529.120265][   T73]      __sys_sendmsg+0xcd/0x170
[ 5529.120265][   T73]      do_syscall_64+0xc6/0x1e0
[ 5529.120265][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5529.120265][   T73] 
[ 5529.122220][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5529.122220][   T73]      dst_init+0x84/0x4a0
[ 5529.122220][   T73]      dst_alloc+0x97/0x150
[ 5529.122220][   T73]      ip6_dst_alloc+0x23/0x90
[ 5529.122220][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5529.122220][   T73]      ip6_pol_route+0x56f/0x840
[ 5529.122220][   T73]      fib6_rule_lookup+0x456/0x630
[ 5529.122220][   T73]      ip6_route_input+0x59c/0xa50
[ 5529.122220][   T73]      ipv6_rcv+0x397/0x810
[ 5529.122220][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5529.122220][   T73]      process_backlog+0x101/0x620
[ 5529.122220][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5529.122220][   T73]      net_rx_action+0x495/0xbe0
[ 5529.122220][   T73]      __do_softirq+0x1b5/0x7f6
[ 5529.122220][   T73] 
[ 5529.123897][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5529.123897][   T73]      netdev_get_by_index+0x5e/0x80
[ 5529.123897][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5529.123897][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5529.123897][   T73]      ip6_route_add+0x1c/0x140
[ 5529.123897][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5529.123897][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5529.123897][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5529.123897][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5529.123897][   T73]      netlink_rcv_skb+0x130/0x360
[ 5529.123897][   T73]      netlink_unicast+0x449/0x710
[ 5529.123897][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5529.123897][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5529.123897][   T73]      ___sys_sendmsg+0xee/0x170
[ 5529.123897][   T73]      __sys_sendmsg+0xcd/0x170
[ 5529.123897][   T73]      do_syscall_64+0xc6/0x1e0
[ 5529.123897][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5529.123897][   T73] 
[ 5529.125920][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5529.125920][   T73]      netdev_get_by_index+0x5e/0x80
[ 5529.125920][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5529.125920][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5529.125920][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5529.125920][   T73]      ipv6_add_addr+0x411/0x2000
[ 5529.125920][   T73]      inet6_addr_add+0x30e/0xa40
[ 5529.125920][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5529.125920][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5529.125920][   T73]      netlink_rcv_skb+0x130/0x360
[ 5529.125920][   T73]      netlink_unicast+0x449/0x710
[ 5529.125920][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5529.125920][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5529.125920][   T73]      ___sys_sendmsg+0xee/0x170
[ 5529.125920][   T73]      __sys_sendmsg+0xcd/0x170
[ 5529.125920][   T73]      do_syscall_64+0xc6/0x1e0
[ 5529.125920][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5529.125920][   T73] 
[ 5529.127956][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5529.127956][   T73]      netdev_get_by_index+0x5e/0x80
[ 5529.127956][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5529.127956][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5529.127956][   T73]      ip6_route_add+0x1c/0x140
[ 5529.127956][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5529.127956][   T73]      addrconf_add_dev+0xe2/0x170
[ 5529.127956][   T73]      inet6_addr_add+0x12f/0xa40
[ 5529.127956][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5529.127956][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5529.127956][   T73]      netlink_rcv_skb+0x130/0x360
[ 5529.127956][   T73]      netlink_unicast+0x449/0x710
[ 5529.127956][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5529.127956][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5529.127956][   T73]      ___sys_sendmsg+0xee/0x170
[ 5529.127956][   T73]      __sys_sendmsg+0xcd/0x170
[ 5529.127956][   T73]      do_syscall_64+0xc6/0x1e0
[ 5529.127956][   T73] 
[ 5529.129962][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5529.129962][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5529.129962][   T73]      ipv6_find_idev+0x102/0x170
[ 5529.129962][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5529.129962][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5529.129962][   T73]      netlink_rcv_skb+0x130/0x360
[ 5529.129962][   T73]      netlink_unicast+0x449/0x710
[ 5529.129962][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5529.129962][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5529.129962][   T73]      ___sys_sendmsg+0xee/0x170
[ 5529.129962][   T73]      __sys_sendmsg+0xcd/0x170
[ 5529.129962][   T73]      do_syscall_64+0xc6/0x1e0
[ 5529.129962][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5529.129962][   T73] 
[ 5529.131527][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5529.131527][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5529.131527][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5529.131527][   T73]      ipv6_find_idev+0x102/0x170
[ 5529.131527][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5529.131527][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5529.131527][   T73]      netlink_rcv_skb+0x130/0x360
[ 5529.131527][   T73]      netlink_unicast+0x449/0x710
[ 5529.131527][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5529.131527][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5529.131527][   T73]      ___sys_sendmsg+0xee/0x170
[ 5529.131527][   T73]      __sys_sendmsg+0xcd/0x170
[ 5529.131527][   T73]      do_syscall_64+0xc6/0x1e0
[ 5529.131527][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5529.131527][   T73] 
[ 5529.133254][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5529.133553][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5529.133553][   T73]      netdev_get_by_index+0x5e/0x80
[ 5529.133553][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5529.133553][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5529.133553][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5529.133553][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5529.133553][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5529.133553][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5529.133553][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5529.133553][   T73]      addrconf_dad_begin+0x310/0x670
[ 5529.133553][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5529.133553][   T73]      process_one_work+0x84d/0x18a0
[ 5529.133553][   T73]      worker_thread+0x587/0xd30
[ 5529.133553][   T73]      kthread+0x28a/0x350
[ 5529.133553][   T73]      ret_from_fork+0x31/0x70
[ 5529.133553][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5529.133553][   T73] 
[ 5529.135489][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5529.135489][   T73]      netdev_get_by_index+0x5e/0x80
[ 5529.135489][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5529.135489][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5529.135489][   T73]      ip6_route_add+0x1c/0x140
[ 5529.135489][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5529.135489][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5529.135489][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5529.135489][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5529.135489][   T73]      netlink_rcv_skb+0x130/0x360
[ 5529.135489][   T73]      netlink_unicast+0x449/0x710
[ 5529.135489][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5529.135489][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5529.135489][   T73]      ___sys_sendmsg+0xee/0x170
[ 5529.135489][   T73]      __sys_sendmsg+0xcd/0x170
[ 5529.135489][   T73]      do_syscall_64+0xc6/0x1e0
[ 5529.135489][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5529.135489][   T73] 
[ 5529.137530][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5529.137530][   T73]      netdev_get_by_index+0x5e/0x80
[ 5529.137530][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5529.137530][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5529.137530][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5529.137530][   T73]      ipv6_add_addr+0x411/0x2000
[ 5529.137530][   T73]      inet6_addr_add+0x30e/0xa40
[ 5529.137530][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5529.137530][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5529.137530][   T73]      netlink_rcv_skb+0x130/0x360
[ 5529.137530][   T73]      netlink_unicast+0x449/0x710
[ 5529.137530][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5529.137530][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5529.137530][   T73]      ___sys_sendmsg+0xee/0x170
[ 5529.137530][   T73]      __sys_sendmsg+0xcd/0x170
[ 5529.137530][   T73]      do_syscall_64+0xc6/0x1e0
[ 5529.137530][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5529.137530][   T73] 
[ 5529.139585][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5529.139585][   T73]      netdev_get_by_index+0x5e/0x80
[ 5529.139585][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5529.139585][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5529.139585][   T73]      ip6_route_add+0x1c/0x140
[ 5529.139585][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5529.139585][   T73]      addrconf_add_dev+0xe2/0x170
[ 5529.139585][   T73]      inet6_addr_add+0x12f/0xa40
[ 5529.139585][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5529.139585][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5529.139585][   T73]      netlink_rcv_skb+0x130/0x360
[ 5529.139585][   T73]      netlink_unicast+0x449/0x710
[ 5529.139585][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5529.139585][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5529.139585][   T73]      ___sys_sendmsg+0xee/0x170
[ 5529.139585][   T73]      __sys_sendmsg+0xcd/0x170
[ 5529.139585][   T73]      do_syscall_64+0xc6/0x1e0
[ 5529.139585][   T73] 
[ 5529.141579][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5529.141579][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5529.141579][   T73]      ipv6_find_idev+0x102/0x170
[ 5529.141579][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5529.141579][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5529.141579][   T73]      netlink_rcv_skb+0x130/0x360
[ 5529.141579][   T73]      netlink_unicast+0x449/0x710
[ 5529.141579][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5529.141579][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5529.141579][   T73]      ___sys_sendmsg+0xee/0x170
[ 5529.141579][   T73]      __sys_sendmsg+0xcd/0x170
[ 5529.141579][   T73]      do_syscall_64+0xc6/0x1e0
[ 5529.141579][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5529.141579][   T73] 
[ 5529.143145][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5529.143145][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5529.143145][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5529.143145][   T73]      ipv6_find_idev+0x102/0x170
[ 5529.143145][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5529.143145][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5529.143145][   T73]      netlink_rcv_skb+0x130/0x360
[ 5529.143145][   T73]      netlink_unicast+0x449/0x710
[ 5529.143145][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5529.143145][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5529.143145][   T73]      ___sys_sendmsg+0xee/0x170
[ 5529.143145][   T73]      __sys_sendmsg+0xcd/0x170
[ 5529.143145][   T73]      do_syscall_64+0xc6/0x1e0
[ 5529.143145][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5529.143145][   T73] 
[ 5529.144861][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5529.145153][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5529.145153][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5529.145153][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5529.145153][   T73]      fib6_nh_init+0xa22/0x1580
[ 5529.145153][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5529.145153][   T73]      ip6_route_add+0x1c/0x140
[ 5529.145153][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5529.145153][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5529.145153][   T73]      netlink_rcv_skb+0x130/0x360
[ 5529.145153][   T73]      netlink_unicast+0x449/0x710
[ 5529.145153][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5529.145153][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5529.145153][   T73]      ___sys_sendmsg+0xee/0x170
[ 5529.145153][   T73]      __sys_sendmsg+0xcd/0x170
[ 5529.145153][   T73]      do_syscall_64+0xc6/0x1e0
[ 5529.145153][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5529.145153][   T73] 
[ 5529.147240][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5529.147240][   T73]      dst_init+0x84/0x4a0
[ 5529.147240][   T73]      dst_alloc+0x97/0x150
[ 5529.147240][   T73]      ip6_dst_alloc+0x23/0x90
[ 5529.147240][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5529.147240][   T73]      ip6_pol_route+0x56f/0x840
[ 5529.147240][   T73]      fib6_rule_lookup+0x456/0x630
[ 5529.147240][   T73]      ip6_route_input+0x59c/0xa50
[ 5529.147240][   T73]      ipv6_rcv+0x397/0x810
[ 5529.147240][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5529.147240][   T73]      process_backlog+0x101/0x620
[ 5529.147240][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5529.147240][   T73]      net_rx_action+0x495/0xbe0
[ 5529.147240][   T73]      __do_softirq+0x1b5/0x7f6
[ 5529.147240][   T73] 
[ 5529.149089][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5529.149089][   T73]      netdev_get_by_index+0x5e/0x80
[ 5529.149089][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5529.149089][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5529.149089][   T73]      ip6_route_add+0x1c/0x140
[ 5529.149089][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5529.149089][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5529.149089][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5529.149089][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5529.149089][   T73]      netlink_rcv_skb+0x130/0x360
[ 5529.149089][   T73]      netlink_unicast+0x449/0x710
[ 5529.149089][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5529.149089][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5529.149089][   T73]      ___sys_sendmsg+0xee/0x170
[ 5529.149089][   T73]      __sys_sendmsg+0xcd/0x170
[ 5529.149089][   T73]      do_syscall_64+0xc6/0x1e0
[ 5529.149089][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5529.149089][   T73] 
[ 5529.151361][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5529.151361][   T73]      netdev_get_by_index+0x5e/0x80
[ 5529.151361][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5529.151361][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5529.151361][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5529.151361][   T73]      ipv6_add_addr+0x411/0x2000
[ 5529.151361][   T73]      inet6_addr_add+0x30e/0xa40
[ 5529.151361][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5529.151361][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5529.151361][   T73]      netlink_rcv_skb+0x130/0x360
[ 5529.151361][   T73]      netlink_unicast+0x449/0x710
[ 5529.151361][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5529.151361][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5529.151361][   T73]      ___sys_sendmsg+0xee/0x170
[ 5529.151361][   T73]      __sys_sendmsg+0xcd/0x170
[ 5529.151361][   T73]      do_syscall_64+0xc6/0x1e0
[ 5529.151361][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5529.151361][   T73] 
[ 5529.153681][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5529.153681][   T73]      netdev_get_by_index+0x5e/0x80
[ 5529.153681][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5529.153681][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5529.153681][   T73]      ip6_route_add+0x1c/0x140
[ 5529.153681][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5529.153681][   T73]      addrconf_add_dev+0xe2/0x170
[ 5529.153681][   T73]      inet6_addr_add+0x12f/0xa40
[ 5529.153681][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5529.153681][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5529.153681][   T73]      netlink_rcv_skb+0x130/0x360
[ 5529.153681][   T73]      netlink_unicast+0x449/0x710
[ 5529.153681][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5529.153681][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5529.153681][   T73]      ___sys_sendmsg+0xee/0x170
[ 5529.153681][   T73]      __sys_sendmsg+0xcd/0x170
[ 5529.153681][   T73]      do_syscall_64+0xc6/0x1e0
[ 5529.153681][   T73] 
[ 5529.155921][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5529.155921][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5529.155921][   T73]      ipv6_find_idev+0x102/0x170
[ 5529.155921][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5529.155921][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5529.155921][   T73]      netlink_rcv_skb+0x130/0x360
[ 5529.155921][   T73]      netlink_unicast+0x449/0x710
[ 5529.155921][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5529.155921][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5529.155921][   T73]      ___sys_sendmsg+0xee/0x170
[ 5529.155921][   T73]      __sys_sendmsg+0xcd/0x170
[ 5529.155921][   T73]      do_syscall_64+0xc6/0x1e0
[ 5529.155921][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5529.155921][   T73] 
[ 5529.159884][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5529.159884][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5529.159884][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5529.159884][   T73]      ipv6_find_idev+0x102/0x170
[ 5529.159884][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5529.159884][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5529.159884][   T73]      netlink_rcv_skb+0x130/0x360
[ 5529.159884][   T73]      netlink_unicast+0x449/0x710
[ 5529.159884][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5529.159884][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5529.159884][   T73]      ___sys_sendmsg+0xee/0x170
[ 5529.159884][   T73]      __sys_sendmsg+0xcd/0x170
[ 5529.159884][   T73]      do_syscall_64+0xc6/0x1e0
[ 5529.159884][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5529.159884][   T73] 
[ 5529.161790][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5529.162074][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5529.162074][   T73]      netdev_get_by_index+0x5e/0x80
[ 5529.162074][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5529.162074][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5529.162074][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5529.162074][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5529.162074][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5529.162074][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5529.162074][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5529.162074][   T73]      addrconf_dad_begin+0x310/0x670
[ 5529.162074][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5529.162074][   T73]      process_one_work+0x84d/0x18a0
[ 5529.162074][   T73]      worker_thread+0x587/0xd30
[ 5529.162074][   T73]      kthread+0x28a/0x350
[ 5529.162074][   T73]      ret_from_fork+0x31/0x70
[ 5529.162074][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5529.162074][   T73] 
[ 5529.164269][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5529.164269][   T73]      netdev_get_by_index+0x5e/0x80
[ 5529.164269][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5529.164269][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5529.164269][   T73]      ip6_route_add+0x1c/0x140
[ 5529.164269][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5529.164269][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5529.164269][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5529.164269][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5529.164269][   T73]      netlink_rcv_skb+0x130/0x360
[ 5529.164269][   T73]      netlink_unicast+0x449/0x710
[ 5529.164269][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5529.164269][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5529.164269][   T73]      ___sys_sendmsg+0xee/0x170
[ 5529.164269][   T73]      __sys_sendmsg+0xcd/0x170
[ 5529.164269][   T73]      do_syscall_64+0xc6/0x1e0
[ 5529.164269][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5529.164269][   T73] 
[ 5529.166614][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5529.166614][   T73]      netdev_get_by_index+0x5e/0x80
[ 5529.166614][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5529.166614][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5529.166614][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5529.166614][   T73]      ipv6_add_addr+0x411/0x2000
[ 5529.166614][   T73]      inet6_addr_add+0x30e/0xa40
[ 5529.166614][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5529.166614][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5529.166614][   T73]      netlink_rcv_skb+0x130/0x360
[ 5529.166614][   T73]      netlink_unicast+0x449/0x710
[ 5529.166614][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5529.166614][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5529.166614][   T73]      ___sys_sendmsg+0xee/0x170
[ 5529.166614][   T73]      __sys_sendmsg+0xcd/0x170
[ 5529.166614][   T73]      do_syscall_64+0xc6/0x1e0
[ 5529.166614][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5529.166614][   T73] 
[ 5529.168901][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5529.168901][   T73]      netdev_get_by_index+0x5e/0x80
[ 5529.168901][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5529.168901][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5529.168901][   T73]      ip6_route_add+0x1c/0x140
[ 5529.168901][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5529.168901][   T73]      addrconf_add_dev+0xe2/0x170
[ 5529.168901][   T73]      inet6_addr_add+0x12f/0xa40
[ 5529.168901][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5529.168901][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5529.168901][   T73]      netlink_rcv_skb+0x130/0x360
[ 5529.168901][   T73]      netlink_unicast+0x449/0x710
[ 5529.168901][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5529.168901][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5529.168901][   T73]      ___sys_sendmsg+0xee/0x170
[ 5529.168901][   T73]      __sys_sendmsg+0xcd/0x170
[ 5529.168901][   T73]      do_syscall_64+0xc6/0x1e0
[ 5529.168901][   T73] 
[ 5529.171085][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5529.171085][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5529.171085][   T73]      ipv6_find_idev+0x102/0x170
[ 5529.171085][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5529.171085][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5529.171085][   T73]      netlink_rcv_skb+0x130/0x360
[ 5529.171085][   T73]      netlink_unicast+0x449/0x710
[ 5529.171085][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5529.171085][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5529.171085][   T73]      ___sys_sendmsg+0xee/0x170
[ 5529.171085][   T73]      __sys_sendmsg+0xcd/0x170
[ 5529.171085][   T73]      do_syscall_64+0xc6/0x1e0
[ 5529.171085][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5529.171085][   T73] 
[ 5529.172833][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5529.172833][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5529.172833][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5529.172833][   T73]      ipv6_find_idev+0x102/0x170
[ 5529.172833][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5529.172833][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5529.172833][   T73]      netlink_rcv_skb+0x130/0x360
[ 5529.172833][   T73]      netlink_unicast+0x449/0x710
[ 5529.172833][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5529.172833][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5529.172833][   T73]      ___sys_sendmsg+0xee/0x170
[ 5529.172833][   T73]      __sys_sendmsg+0xcd/0x170
[ 5529.172833][   T73]      do_syscall_64+0xc6/0x1e0
[ 5529.172833][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5529.172833][   T73] 
[ 5539.415752][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5539.416223][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5539.416223][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5539.416223][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5539.416223][   T73]      fib6_nh_init+0xa22/0x1580
[ 5539.416223][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5539.416223][   T73]      ip6_route_add+0x1c/0x140
[ 5539.416223][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5539.416223][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5539.416223][   T73]      netlink_rcv_skb+0x130/0x360
[ 5539.416223][   T73]      netlink_unicast+0x449/0x710
[ 5539.416223][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5539.416223][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5539.416223][   T73]      ___sys_sendmsg+0xee/0x170
[ 5539.416223][   T73]      __sys_sendmsg+0xcd/0x170
[ 5539.416223][   T73]      do_syscall_64+0xc6/0x1e0
[ 5539.416223][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5539.416223][   T73] 
[ 5539.418181][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5539.418181][   T73]      dst_init+0x84/0x4a0
[ 5539.418181][   T73]      dst_alloc+0x97/0x150
[ 5539.418181][   T73]      ip6_dst_alloc+0x23/0x90
[ 5539.418181][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5539.418181][   T73]      ip6_pol_route+0x56f/0x840
[ 5539.418181][   T73]      fib6_rule_lookup+0x456/0x630
[ 5539.418181][   T73]      ip6_route_input+0x59c/0xa50
[ 5539.418181][   T73]      ipv6_rcv+0x397/0x810
[ 5539.418181][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5539.418181][   T73]      process_backlog+0x101/0x620
[ 5539.418181][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5539.418181][   T73]      net_rx_action+0x495/0xbe0
[ 5539.418181][   T73]      __do_softirq+0x1b5/0x7f6
[ 5539.418181][   T73] 
[ 5539.419866][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5539.419866][   T73]      netdev_get_by_index+0x5e/0x80
[ 5539.419866][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5539.419866][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5539.419866][   T73]      ip6_route_add+0x1c/0x140
[ 5539.419866][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5539.419866][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5539.419866][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5539.419866][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5539.419866][   T73]      netlink_rcv_skb+0x130/0x360
[ 5539.419866][   T73]      netlink_unicast+0x449/0x710
[ 5539.419866][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5539.419866][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5539.419866][   T73]      ___sys_sendmsg+0xee/0x170
[ 5539.419866][   T73]      __sys_sendmsg+0xcd/0x170
[ 5539.419866][   T73]      do_syscall_64+0xc6/0x1e0
[ 5539.419866][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5539.419866][   T73] 
[ 5539.421890][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5539.421890][   T73]      netdev_get_by_index+0x5e/0x80
[ 5539.421890][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5539.421890][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5539.421890][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5539.421890][   T73]      ipv6_add_addr+0x411/0x2000
[ 5539.421890][   T73]      inet6_addr_add+0x30e/0xa40
[ 5539.421890][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5539.421890][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5539.421890][   T73]      netlink_rcv_skb+0x130/0x360
[ 5539.421890][   T73]      netlink_unicast+0x449/0x710
[ 5539.421890][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5539.421890][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5539.421890][   T73]      ___sys_sendmsg+0xee/0x170
[ 5539.421890][   T73]      __sys_sendmsg+0xcd/0x170
[ 5539.421890][   T73]      do_syscall_64+0xc6/0x1e0
[ 5539.421890][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5539.421890][   T73] 
[ 5539.423919][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5539.423919][   T73]      netdev_get_by_index+0x5e/0x80
[ 5539.423919][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5539.423919][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5539.423919][   T73]      ip6_route_add+0x1c/0x140
[ 5539.423919][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5539.423919][   T73]      addrconf_add_dev+0xe2/0x170
[ 5539.423919][   T73]      inet6_addr_add+0x12f/0xa40
[ 5539.423919][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5539.423919][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5539.423919][   T73]      netlink_rcv_skb+0x130/0x360
[ 5539.423919][   T73]      netlink_unicast+0x449/0x710
[ 5539.423919][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5539.423919][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5539.423919][   T73]      ___sys_sendmsg+0xee/0x170
[ 5539.423919][   T73]      __sys_sendmsg+0xcd/0x170
[ 5539.423919][   T73]      do_syscall_64+0xc6/0x1e0
[ 5539.423919][   T73] 
[ 5539.425921][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5539.425921][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5539.425921][   T73]      ipv6_find_idev+0x102/0x170
[ 5539.425921][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5539.425921][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5539.425921][   T73]      netlink_rcv_skb+0x130/0x360
[ 5539.425921][   T73]      netlink_unicast+0x449/0x710
[ 5539.425921][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5539.425921][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5539.425921][   T73]      ___sys_sendmsg+0xee/0x170
[ 5539.425921][   T73]      __sys_sendmsg+0xcd/0x170
[ 5539.425921][   T73]      do_syscall_64+0xc6/0x1e0
[ 5539.425921][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5539.425921][   T73] 
[ 5539.427484][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5539.427484][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5539.427484][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5539.427484][   T73]      ipv6_find_idev+0x102/0x170
[ 5539.427484][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5539.427484][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5539.427484][   T73]      netlink_rcv_skb+0x130/0x360
[ 5539.427484][   T73]      netlink_unicast+0x449/0x710
[ 5539.427484][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5539.427484][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5539.427484][   T73]      ___sys_sendmsg+0xee/0x170
[ 5539.427484][   T73]      __sys_sendmsg+0xcd/0x170
[ 5539.427484][   T73]      do_syscall_64+0xc6/0x1e0
[ 5539.427484][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5539.427484][   T73] 
[ 5539.429212][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5539.429493][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5539.429493][   T73]      netdev_get_by_index+0x5e/0x80
[ 5539.429493][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5539.429493][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5539.429493][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5539.429493][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5539.429493][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5539.429493][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5539.429493][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5539.429493][   T73]      addrconf_dad_begin+0x310/0x670
[ 5539.429493][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5539.429493][   T73]      process_one_work+0x84d/0x18a0
[ 5539.429493][   T73]      worker_thread+0x587/0xd30
[ 5539.429493][   T73]      kthread+0x28a/0x350
[ 5539.429493][   T73]      ret_from_fork+0x31/0x70
[ 5539.429493][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5539.429493][   T73] 
[ 5539.431441][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5539.431441][   T73]      netdev_get_by_index+0x5e/0x80
[ 5539.431441][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5539.431441][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5539.431441][   T73]      ip6_route_add+0x1c/0x140
[ 5539.431441][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5539.431441][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5539.431441][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5539.431441][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5539.431441][   T73]      netlink_rcv_skb+0x130/0x360
[ 5539.431441][   T73]      netlink_unicast+0x449/0x710
[ 5539.431441][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5539.431441][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5539.431441][   T73]      ___sys_sendmsg+0xee/0x170
[ 5539.431441][   T73]      __sys_sendmsg+0xcd/0x170
[ 5539.431441][   T73]      do_syscall_64+0xc6/0x1e0
[ 5539.431441][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5539.431441][   T73] 
[ 5539.434103][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5539.434103][   T73]      netdev_get_by_index+0x5e/0x80
[ 5539.434103][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5539.434103][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5539.434103][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5539.434103][   T73]      ipv6_add_addr+0x411/0x2000
[ 5539.434103][   T73]      inet6_addr_add+0x30e/0xa40
[ 5539.434103][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5539.434103][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5539.434103][   T73]      netlink_rcv_skb+0x130/0x360
[ 5539.434103][   T73]      netlink_unicast+0x449/0x710
[ 5539.434103][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5539.434103][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5539.434103][   T73]      ___sys_sendmsg+0xee/0x170
[ 5539.434103][   T73]      __sys_sendmsg+0xcd/0x170
[ 5539.434103][   T73]      do_syscall_64+0xc6/0x1e0
[ 5539.434103][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5539.434103][   T73] 
[ 5539.436112][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5539.436112][   T73]      netdev_get_by_index+0x5e/0x80
[ 5539.436112][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5539.436112][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5539.436112][   T73]      ip6_route_add+0x1c/0x140
[ 5539.436112][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5539.436112][   T73]      addrconf_add_dev+0xe2/0x170
[ 5539.436112][   T73]      inet6_addr_add+0x12f/0xa40
[ 5539.436112][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5539.436112][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5539.436112][   T73]      netlink_rcv_skb+0x130/0x360
[ 5539.436112][   T73]      netlink_unicast+0x449/0x710
[ 5539.436112][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5539.436112][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5539.436112][   T73]      ___sys_sendmsg+0xee/0x170
[ 5539.436112][   T73]      __sys_sendmsg+0xcd/0x170
[ 5539.436112][   T73]      do_syscall_64+0xc6/0x1e0
[ 5539.436112][   T73] 
[ 5539.438084][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5539.438084][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5539.438084][   T73]      ipv6_find_idev+0x102/0x170
[ 5539.438084][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5539.438084][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5539.438084][   T73]      netlink_rcv_skb+0x130/0x360
[ 5539.438084][   T73]      netlink_unicast+0x449/0x710
[ 5539.438084][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5539.438084][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5539.438084][   T73]      ___sys_sendmsg+0xee/0x170
[ 5539.438084][   T73]      __sys_sendmsg+0xcd/0x170
[ 5539.438084][   T73]      do_syscall_64+0xc6/0x1e0
[ 5539.438084][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5539.438084][   T73] 
[ 5539.439664][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5539.439664][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5539.439664][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5539.439664][   T73]      ipv6_find_idev+0x102/0x170
[ 5539.439664][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5539.439664][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5539.439664][   T73]      netlink_rcv_skb+0x130/0x360
[ 5539.439664][   T73]      netlink_unicast+0x449/0x710
[ 5539.439664][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5539.439664][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5539.439664][   T73]      ___sys_sendmsg+0xee/0x170
[ 5539.439664][   T73]      __sys_sendmsg+0xcd/0x170
[ 5539.439664][   T73]      do_syscall_64+0xc6/0x1e0
[ 5539.439664][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5539.439664][   T73] 
[ 5539.441385][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5539.441670][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5539.441670][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5539.441670][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5539.441670][   T73]      fib6_nh_init+0xa22/0x1580
[ 5539.441670][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5539.441670][   T73]      ip6_route_add+0x1c/0x140
[ 5539.441670][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5539.441670][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5539.441670][   T73]      netlink_rcv_skb+0x130/0x360
[ 5539.441670][   T73]      netlink_unicast+0x449/0x710
[ 5539.441670][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5539.441670][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5539.441670][   T73]      ___sys_sendmsg+0xee/0x170
[ 5539.441670][   T73]      __sys_sendmsg+0xcd/0x170
[ 5539.441670][   T73]      do_syscall_64+0xc6/0x1e0
[ 5539.441670][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5539.441670][   T73] 
[ 5539.443759][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5539.443759][   T73]      dst_init+0x84/0x4a0
[ 5539.443759][   T73]      dst_alloc+0x97/0x150
[ 5539.443759][   T73]      ip6_dst_alloc+0x23/0x90
[ 5539.443759][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5539.443759][   T73]      ip6_pol_route+0x56f/0x840
[ 5539.443759][   T73]      fib6_rule_lookup+0x456/0x630
[ 5539.443759][   T73]      ip6_route_input+0x59c/0xa50
[ 5539.443759][   T73]      ipv6_rcv+0x397/0x810
[ 5539.443759][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5539.443759][   T73]      process_backlog+0x101/0x620
[ 5539.443759][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5539.443759][   T73]      net_rx_action+0x495/0xbe0
[ 5539.443759][   T73]      __do_softirq+0x1b5/0x7f6
[ 5539.443759][   T73] 
[ 5539.445657][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5539.445657][   T73]      netdev_get_by_index+0x5e/0x80
[ 5539.445657][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5539.445657][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5539.445657][   T73]      ip6_route_add+0x1c/0x140
[ 5539.445657][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5539.445657][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5539.445657][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5539.445657][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5539.445657][   T73]      netlink_rcv_skb+0x130/0x360
[ 5539.445657][   T73]      netlink_unicast+0x449/0x710
[ 5539.445657][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5539.445657][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5539.445657][   T73]      ___sys_sendmsg+0xee/0x170
[ 5539.445657][   T73]      __sys_sendmsg+0xcd/0x170
[ 5539.445657][   T73]      do_syscall_64+0xc6/0x1e0
[ 5539.445657][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5539.445657][   T73] 
[ 5539.448440][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5539.448440][   T73]      netdev_get_by_index+0x5e/0x80
[ 5539.448440][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5539.448440][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5539.448440][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5539.448440][   T73]      ipv6_add_addr+0x411/0x2000
[ 5539.448440][   T73]      inet6_addr_add+0x30e/0xa40
[ 5539.448440][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5539.448440][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5539.448440][   T73]      netlink_rcv_skb+0x130/0x360
[ 5539.448440][   T73]      netlink_unicast+0x449/0x710
[ 5539.448440][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5539.448440][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5539.448440][   T73]      ___sys_sendmsg+0xee/0x170
[ 5539.448440][   T73]      __sys_sendmsg+0xcd/0x170
[ 5539.448440][   T73]      do_syscall_64+0xc6/0x1e0
[ 5539.448440][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5539.448440][   T73] 
[ 5539.450698][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5539.450698][   T73]      netdev_get_by_index+0x5e/0x80
[ 5539.450698][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5539.450698][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5539.450698][   T73]      ip6_route_add+0x1c/0x140
[ 5539.450698][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5539.450698][   T73]      addrconf_add_dev+0xe2/0x170
[ 5539.450698][   T73]      inet6_addr_add+0x12f/0xa40
[ 5539.450698][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5539.450698][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5539.450698][   T73]      netlink_rcv_skb+0x130/0x360
[ 5539.450698][   T73]      netlink_unicast+0x449/0x710
[ 5539.450698][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5539.450698][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5539.450698][   T73]      ___sys_sendmsg+0xee/0x170
[ 5539.450698][   T73]      __sys_sendmsg+0xcd/0x170
[ 5539.450698][   T73]      do_syscall_64+0xc6/0x1e0
[ 5539.450698][   T73] 
[ 5539.452910][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5539.452910][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5539.452910][   T73]      ipv6_find_idev+0x102/0x170
[ 5539.452910][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5539.452910][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5539.452910][   T73]      netlink_rcv_skb+0x130/0x360
[ 5539.452910][   T73]      netlink_unicast+0x449/0x710
[ 5539.452910][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5539.452910][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5539.452910][   T73]      ___sys_sendmsg+0xee/0x170
[ 5539.452910][   T73]      __sys_sendmsg+0xcd/0x170
[ 5539.452910][   T73]      do_syscall_64+0xc6/0x1e0
[ 5539.452910][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5539.452910][   T73] 
[ 5539.454704][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5539.454704][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5539.454704][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5539.454704][   T73]      ipv6_find_idev+0x102/0x170
[ 5539.454704][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5539.454704][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5539.454704][   T73]      netlink_rcv_skb+0x130/0x360
[ 5539.454704][   T73]      netlink_unicast+0x449/0x710
[ 5539.454704][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5539.454704][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5539.454704][   T73]      ___sys_sendmsg+0xee/0x170
[ 5539.454704][   T73]      __sys_sendmsg+0xcd/0x170
[ 5539.454704][   T73]      do_syscall_64+0xc6/0x1e0
[ 5539.454704][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5539.454704][   T73] 
[ 5539.456597][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5539.457308][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5539.457308][   T73]      netdev_get_by_index+0x5e/0x80
[ 5539.457308][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5539.457308][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5539.457308][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5539.457308][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5539.457308][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5539.457308][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5539.457308][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5539.457308][   T73]      addrconf_dad_begin+0x310/0x670
[ 5539.457308][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5539.457308][   T73]      process_one_work+0x84d/0x18a0
[ 5539.457308][   T73]      worker_thread+0x587/0xd30
[ 5539.457308][   T73]      kthread+0x28a/0x350
[ 5539.457308][   T73]      ret_from_fork+0x31/0x70
[ 5539.457308][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5539.457308][   T73] 
[ 5539.459242][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5539.459242][   T73]      netdev_get_by_index+0x5e/0x80
[ 5539.459242][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5539.459242][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5539.459242][   T73]      ip6_route_add+0x1c/0x140
[ 5539.459242][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5539.459242][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5539.459242][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5539.459242][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5539.459242][   T73]      netlink_rcv_skb+0x130/0x360
[ 5539.459242][   T73]      netlink_unicast+0x449/0x710
[ 5539.459242][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5539.459242][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5539.459242][   T73]      ___sys_sendmsg+0xee/0x170
[ 5539.459242][   T73]      __sys_sendmsg+0xcd/0x170
[ 5539.459242][   T73]      do_syscall_64+0xc6/0x1e0
[ 5539.459242][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5539.459242][   T73] 
[ 5539.506129][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5539.506129][   T73]      netdev_get_by_index+0x5e/0x80
[ 5539.506129][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5539.506129][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5539.506129][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5539.506129][   T73]      ipv6_add_addr+0x411/0x2000
[ 5539.506129][   T73]      inet6_addr_add+0x30e/0xa40
[ 5539.506129][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5539.506129][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5539.506129][   T73]      netlink_rcv_skb+0x130/0x360
[ 5539.506129][   T73]      netlink_unicast+0x449/0x710
[ 5539.506129][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5539.506129][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5539.506129][   T73]      ___sys_sendmsg+0xee/0x170
[ 5539.506129][   T73]      __sys_sendmsg+0xcd/0x170
[ 5539.506129][   T73]      do_syscall_64+0xc6/0x1e0
[ 5539.506129][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5539.506129][   T73] 
[ 5539.508415][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5539.508415][   T73]      netdev_get_by_index+0x5e/0x80
[ 5539.508415][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5539.508415][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5539.508415][   T73]      ip6_route_add+0x1c/0x140
[ 5539.508415][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5539.508415][   T73]      addrconf_add_dev+0xe2/0x170
[ 5539.508415][   T73]      inet6_addr_add+0x12f/0xa40
[ 5539.508415][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5539.508415][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5539.508415][   T73]      netlink_rcv_skb+0x130/0x360
[ 5539.508415][   T73]      netlink_unicast+0x449/0x710
[ 5539.508415][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5539.508415][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5539.508415][   T73]      ___sys_sendmsg+0xee/0x170
[ 5539.508415][   T73]      __sys_sendmsg+0xcd/0x170
[ 5539.508415][   T73]      do_syscall_64+0xc6/0x1e0
[ 5539.508415][   T73] 
[ 5539.510607][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5539.510607][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5539.510607][   T73]      ipv6_find_idev+0x102/0x170
[ 5539.510607][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5539.510607][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5539.510607][   T73]      netlink_rcv_skb+0x130/0x360
[ 5539.510607][   T73]      netlink_unicast+0x449/0x710
[ 5539.510607][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5539.510607][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5539.510607][   T73]      ___sys_sendmsg+0xee/0x170
[ 5539.510607][   T73]      __sys_sendmsg+0xcd/0x170
[ 5539.510607][   T73]      do_syscall_64+0xc6/0x1e0
[ 5539.510607][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5539.510607][   T73] 
[ 5539.512366][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5539.512366][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5539.512366][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5539.512366][   T73]      ipv6_find_idev+0x102/0x170
[ 5539.512366][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5539.512366][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5539.512366][   T73]      netlink_rcv_skb+0x130/0x360
[ 5539.512366][   T73]      netlink_unicast+0x449/0x710
[ 5539.512366][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5539.512366][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5539.512366][   T73]      ___sys_sendmsg+0xee/0x170
[ 5539.512366][   T73]      __sys_sendmsg+0xcd/0x170
[ 5539.512366][   T73]      do_syscall_64+0xc6/0x1e0
[ 5539.512366][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5539.512366][   T73] 
[ 5549.839835][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5549.840298][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5549.840298][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5549.840298][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5549.840298][   T73]      fib6_nh_init+0xa22/0x1580
[ 5549.840298][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5549.840298][   T73]      ip6_route_add+0x1c/0x140
[ 5549.840298][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5549.840298][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5549.840298][   T73]      netlink_rcv_skb+0x130/0x360
[ 5549.840298][   T73]      netlink_unicast+0x449/0x710
[ 5549.840298][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5549.840298][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5549.840298][   T73]      ___sys_sendmsg+0xee/0x170
[ 5549.840298][   T73]      __sys_sendmsg+0xcd/0x170
[ 5549.840298][   T73]      do_syscall_64+0xc6/0x1e0
[ 5549.840298][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5549.840298][   T73] 
[ 5549.842189][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5549.842189][   T73]      dst_init+0x84/0x4a0
[ 5549.842189][   T73]      dst_alloc+0x97/0x150
[ 5549.842189][   T73]      ip6_dst_alloc+0x23/0x90
[ 5549.842189][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5549.842189][   T73]      ip6_pol_route+0x56f/0x840
[ 5549.842189][   T73]      fib6_rule_lookup+0x456/0x630
[ 5549.842189][   T73]      ip6_route_input+0x59c/0xa50
[ 5549.842189][   T73]      ipv6_rcv+0x397/0x810
[ 5549.842189][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5549.842189][   T73]      process_backlog+0x101/0x620
[ 5549.842189][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5549.842189][   T73]      net_rx_action+0x495/0xbe0
[ 5549.842189][   T73]      __do_softirq+0x1b5/0x7f6
[ 5549.842189][   T73] 
[ 5549.843821][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5549.843821][   T73]      netdev_get_by_index+0x5e/0x80
[ 5549.843821][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5549.843821][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5549.843821][   T73]      ip6_route_add+0x1c/0x140
[ 5549.843821][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5549.843821][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5549.843821][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5549.843821][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5549.843821][   T73]      netlink_rcv_skb+0x130/0x360
[ 5549.843821][   T73]      netlink_unicast+0x449/0x710
[ 5549.843821][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5549.843821][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5549.843821][   T73]      ___sys_sendmsg+0xee/0x170
[ 5549.843821][   T73]      __sys_sendmsg+0xcd/0x170
[ 5549.843821][   T73]      do_syscall_64+0xc6/0x1e0
[ 5549.843821][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5549.843821][   T73] 
[ 5549.845819][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5549.845819][   T73]      netdev_get_by_index+0x5e/0x80
[ 5549.845819][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5549.845819][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5549.845819][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5549.845819][   T73]      ipv6_add_addr+0x411/0x2000
[ 5549.845819][   T73]      inet6_addr_add+0x30e/0xa40
[ 5549.845819][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5549.845819][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5549.845819][   T73]      netlink_rcv_skb+0x130/0x360
[ 5549.845819][   T73]      netlink_unicast+0x449/0x710
[ 5549.845819][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5549.845819][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5549.845819][   T73]      ___sys_sendmsg+0xee/0x170
[ 5549.845819][   T73]      __sys_sendmsg+0xcd/0x170
[ 5549.845819][   T73]      do_syscall_64+0xc6/0x1e0
[ 5549.845819][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5549.845819][   T73] 
[ 5549.847812][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5549.847812][   T73]      netdev_get_by_index+0x5e/0x80
[ 5549.847812][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5549.847812][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5549.847812][   T73]      ip6_route_add+0x1c/0x140
[ 5549.847812][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5549.847812][   T73]      addrconf_add_dev+0xe2/0x170
[ 5549.847812][   T73]      inet6_addr_add+0x12f/0xa40
[ 5549.847812][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5549.847812][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5549.847812][   T73]      netlink_rcv_skb+0x130/0x360
[ 5549.847812][   T73]      netlink_unicast+0x449/0x710
[ 5549.847812][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5549.847812][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5549.847812][   T73]      ___sys_sendmsg+0xee/0x170
[ 5549.847812][   T73]      __sys_sendmsg+0xcd/0x170
[ 5549.847812][   T73]      do_syscall_64+0xc6/0x1e0
[ 5549.847812][   T73] 
[ 5549.849777][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5549.849777][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5549.849777][   T73]      ipv6_find_idev+0x102/0x170
[ 5549.849777][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5549.849777][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5549.849777][   T73]      netlink_rcv_skb+0x130/0x360
[ 5549.849777][   T73]      netlink_unicast+0x449/0x710
[ 5549.849777][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5549.849777][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5549.849777][   T73]      ___sys_sendmsg+0xee/0x170
[ 5549.849777][   T73]      __sys_sendmsg+0xcd/0x170
[ 5549.849777][   T73]      do_syscall_64+0xc6/0x1e0
[ 5549.849777][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5549.849777][   T73] 
[ 5549.851307][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5549.851307][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5549.851307][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5549.851307][   T73]      ipv6_find_idev+0x102/0x170
[ 5549.851307][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5549.851307][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5549.851307][   T73]      netlink_rcv_skb+0x130/0x360
[ 5549.851307][   T73]      netlink_unicast+0x449/0x710
[ 5549.851307][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5549.851307][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5549.851307][   T73]      ___sys_sendmsg+0xee/0x170
[ 5549.851307][   T73]      __sys_sendmsg+0xcd/0x170
[ 5549.851307][   T73]      do_syscall_64+0xc6/0x1e0
[ 5549.851307][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5549.851307][   T73] 
[ 5549.852992][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5549.853269][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5549.853269][   T73]      netdev_get_by_index+0x5e/0x80
[ 5549.853269][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5549.853269][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5549.853269][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5549.853269][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5549.853269][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5549.853269][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5549.853269][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5549.853269][   T73]      addrconf_dad_begin+0x310/0x670
[ 5549.853269][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5549.853269][   T73]      process_one_work+0x84d/0x18a0
[ 5549.853269][   T73]      worker_thread+0x587/0xd30
[ 5549.853269][   T73]      kthread+0x28a/0x350
[ 5549.853269][   T73]      ret_from_fork+0x31/0x70
[ 5549.853269][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5549.853269][   T73] 
[ 5549.855171][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5549.855171][   T73]      netdev_get_by_index+0x5e/0x80
[ 5549.855171][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5549.855171][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5549.855171][   T73]      ip6_route_add+0x1c/0x140
[ 5549.855171][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5549.855171][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5549.855171][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5549.855171][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5549.855171][   T73]      netlink_rcv_skb+0x130/0x360
[ 5549.855171][   T73]      netlink_unicast+0x449/0x710
[ 5549.855171][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5549.855171][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5549.855171][   T73]      ___sys_sendmsg+0xee/0x170
[ 5549.855171][   T73]      __sys_sendmsg+0xcd/0x170
[ 5549.855171][   T73]      do_syscall_64+0xc6/0x1e0
[ 5549.855171][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5549.855171][   T73] 
[ 5549.857165][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5549.857165][   T73]      netdev_get_by_index+0x5e/0x80
[ 5549.857165][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5549.857165][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5549.857165][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5549.857165][   T73]      ipv6_add_addr+0x411/0x2000
[ 5549.857165][   T73]      inet6_addr_add+0x30e/0xa40
[ 5549.857165][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5549.857165][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5549.857165][   T73]      netlink_rcv_skb+0x130/0x360
[ 5549.857165][   T73]      netlink_unicast+0x449/0x710
[ 5549.857165][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5549.857165][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5549.857165][   T73]      ___sys_sendmsg+0xee/0x170
[ 5549.857165][   T73]      __sys_sendmsg+0xcd/0x170
[ 5549.857165][   T73]      do_syscall_64+0xc6/0x1e0
[ 5549.857165][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5549.857165][   T73] 
[ 5549.859173][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5549.859173][   T73]      netdev_get_by_index+0x5e/0x80
[ 5549.859173][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5549.859173][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5549.859173][   T73]      ip6_route_add+0x1c/0x140
[ 5549.859173][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5549.859173][   T73]      addrconf_add_dev+0xe2/0x170
[ 5549.859173][   T73]      inet6_addr_add+0x12f/0xa40
[ 5549.859173][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5549.859173][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5549.859173][   T73]      netlink_rcv_skb+0x130/0x360
[ 5549.859173][   T73]      netlink_unicast+0x449/0x710
[ 5549.859173][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5549.859173][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5549.859173][   T73]      ___sys_sendmsg+0xee/0x170
[ 5549.859173][   T73]      __sys_sendmsg+0xcd/0x170
[ 5549.859173][   T73]      do_syscall_64+0xc6/0x1e0
[ 5549.859173][   T73] 
[ 5549.861150][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5549.861150][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5549.861150][   T73]      ipv6_find_idev+0x102/0x170
[ 5549.861150][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5549.861150][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5549.861150][   T73]      netlink_rcv_skb+0x130/0x360
[ 5549.861150][   T73]      netlink_unicast+0x449/0x710
[ 5549.861150][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5549.861150][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5549.861150][   T73]      ___sys_sendmsg+0xee/0x170
[ 5549.861150][   T73]      __sys_sendmsg+0xcd/0x170
[ 5549.861150][   T73]      do_syscall_64+0xc6/0x1e0
[ 5549.861150][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5549.861150][   T73] 
[ 5549.866082][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5549.866082][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5549.866082][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5549.866082][   T73]      ipv6_find_idev+0x102/0x170
[ 5549.866082][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5549.866082][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5549.866082][   T73]      netlink_rcv_skb+0x130/0x360
[ 5549.866082][   T73]      netlink_unicast+0x449/0x710
[ 5549.866082][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5549.866082][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5549.866082][   T73]      ___sys_sendmsg+0xee/0x170
[ 5549.866082][   T73]      __sys_sendmsg+0xcd/0x170
[ 5549.866082][   T73]      do_syscall_64+0xc6/0x1e0
[ 5549.866082][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5549.866082][   T73] 
[ 5549.867795][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5549.868063][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5549.868063][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5549.868063][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5549.868063][   T73]      fib6_nh_init+0xa22/0x1580
[ 5549.868063][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5549.868063][   T73]      ip6_route_add+0x1c/0x140
[ 5549.868063][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5549.868063][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5549.868063][   T73]      netlink_rcv_skb+0x130/0x360
[ 5549.868063][   T73]      netlink_unicast+0x449/0x710
[ 5549.868063][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5549.868063][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5549.868063][   T73]      ___sys_sendmsg+0xee/0x170
[ 5549.868063][   T73]      __sys_sendmsg+0xcd/0x170
[ 5549.868063][   T73]      do_syscall_64+0xc6/0x1e0
[ 5549.868063][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5549.868063][   T73] 
[ 5549.870117][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5549.870117][   T73]      dst_init+0x84/0x4a0
[ 5549.870117][   T73]      dst_alloc+0x97/0x150
[ 5549.870117][   T73]      ip6_dst_alloc+0x23/0x90
[ 5549.870117][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5549.870117][   T73]      ip6_pol_route+0x56f/0x840
[ 5549.870117][   T73]      fib6_rule_lookup+0x456/0x630
[ 5549.870117][   T73]      ip6_route_input+0x59c/0xa50
[ 5549.870117][   T73]      ipv6_rcv+0x397/0x810
[ 5549.870117][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5549.870117][   T73]      process_backlog+0x101/0x620
[ 5549.870117][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5549.870117][   T73]      net_rx_action+0x495/0xbe0
[ 5549.870117][   T73]      __do_softirq+0x1b5/0x7f6
[ 5549.870117][   T73] 
[ 5549.872007][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5549.872007][   T73]      netdev_get_by_index+0x5e/0x80
[ 5549.872007][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5549.872007][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5549.872007][   T73]      ip6_route_add+0x1c/0x140
[ 5549.872007][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5549.872007][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5549.872007][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5549.872007][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5549.872007][   T73]      netlink_rcv_skb+0x130/0x360
[ 5549.872007][   T73]      netlink_unicast+0x449/0x710
[ 5549.872007][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5549.872007][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5549.872007][   T73]      ___sys_sendmsg+0xee/0x170
[ 5549.872007][   T73]      __sys_sendmsg+0xcd/0x170
[ 5549.872007][   T73]      do_syscall_64+0xc6/0x1e0
[ 5549.872007][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5549.872007][   T73] 
[ 5549.874238][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5549.874238][   T73]      netdev_get_by_index+0x5e/0x80
[ 5549.874238][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5549.874238][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5549.874238][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5549.874238][   T73]      ipv6_add_addr+0x411/0x2000
[ 5549.874238][   T73]      inet6_addr_add+0x30e/0xa40
[ 5549.874238][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5549.874238][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5549.874238][   T73]      netlink_rcv_skb+0x130/0x360
[ 5549.874238][   T73]      netlink_unicast+0x449/0x710
[ 5549.874238][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5549.874238][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5549.874238][   T73]      ___sys_sendmsg+0xee/0x170
[ 5549.874238][   T73]      __sys_sendmsg+0xcd/0x170
[ 5549.874238][   T73]      do_syscall_64+0xc6/0x1e0
[ 5549.874238][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5549.874238][   T73] 
[ 5549.876472][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5549.876472][   T73]      netdev_get_by_index+0x5e/0x80
[ 5549.876472][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5549.876472][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5549.876472][   T73]      ip6_route_add+0x1c/0x140
[ 5549.876472][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5549.876472][   T73]      addrconf_add_dev+0xe2/0x170
[ 5549.876472][   T73]      inet6_addr_add+0x12f/0xa40
[ 5549.876472][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5549.876472][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5549.876472][   T73]      netlink_rcv_skb+0x130/0x360
[ 5549.876472][   T73]      netlink_unicast+0x449/0x710
[ 5549.876472][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5549.876472][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5549.876472][   T73]      ___sys_sendmsg+0xee/0x170
[ 5549.876472][   T73]      __sys_sendmsg+0xcd/0x170
[ 5549.876472][   T73]      do_syscall_64+0xc6/0x1e0
[ 5549.876472][   T73] 
[ 5549.878619][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5549.878619][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5549.878619][   T73]      ipv6_find_idev+0x102/0x170
[ 5549.878619][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5549.878619][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5549.878619][   T73]      netlink_rcv_skb+0x130/0x360
[ 5549.878619][   T73]      netlink_unicast+0x449/0x710
[ 5549.878619][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5549.878619][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5549.878619][   T73]      ___sys_sendmsg+0xee/0x170
[ 5549.878619][   T73]      __sys_sendmsg+0xcd/0x170
[ 5549.878619][   T73]      do_syscall_64+0xc6/0x1e0
[ 5549.878619][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5549.878619][   T73] 
[ 5549.880407][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5549.880407][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5549.880407][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5549.880407][   T73]      ipv6_find_idev+0x102/0x170
[ 5549.880407][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5549.880407][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5549.880407][   T73]      netlink_rcv_skb+0x130/0x360
[ 5549.880407][   T73]      netlink_unicast+0x449/0x710
[ 5549.880407][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5549.880407][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5549.880407][   T73]      ___sys_sendmsg+0xee/0x170
[ 5549.880407][   T73]      __sys_sendmsg+0xcd/0x170
[ 5549.880407][   T73]      do_syscall_64+0xc6/0x1e0
[ 5549.880407][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5549.880407][   T73] 
[ 5549.882334][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5549.882613][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5549.882613][   T73]      netdev_get_by_index+0x5e/0x80
[ 5549.882613][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5549.882613][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5549.882613][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5549.882613][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5549.882613][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5549.882613][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5549.882613][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5549.882613][   T73]      addrconf_dad_begin+0x310/0x670
[ 5549.882613][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5549.882613][   T73]      process_one_work+0x84d/0x18a0
[ 5549.882613][   T73]      worker_thread+0x587/0xd30
[ 5549.882613][   T73]      kthread+0x28a/0x350
[ 5549.882613][   T73]      ret_from_fork+0x31/0x70
[ 5549.882613][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5549.882613][   T73] 
[ 5549.884796][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5549.884796][   T73]      netdev_get_by_index+0x5e/0x80
[ 5549.884796][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5549.884796][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5549.884796][   T73]      ip6_route_add+0x1c/0x140
[ 5549.884796][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5549.884796][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5549.884796][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5549.884796][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5549.884796][   T73]      netlink_rcv_skb+0x130/0x360
[ 5549.884796][   T73]      netlink_unicast+0x449/0x710
[ 5549.884796][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5549.884796][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5549.884796][   T73]      ___sys_sendmsg+0xee/0x170
[ 5549.884796][   T73]      __sys_sendmsg+0xcd/0x170
[ 5549.884796][   T73]      do_syscall_64+0xc6/0x1e0
[ 5549.884796][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5549.884796][   T73] 
[ 5549.886979][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5549.886979][   T73]      netdev_get_by_index+0x5e/0x80
[ 5549.886979][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5549.886979][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5549.886979][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5549.886979][   T73]      ipv6_add_addr+0x411/0x2000
[ 5549.886979][   T73]      inet6_addr_add+0x30e/0xa40
[ 5549.886979][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5549.886979][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5549.886979][   T73]      netlink_rcv_skb+0x130/0x360
[ 5549.886979][   T73]      netlink_unicast+0x449/0x710
[ 5549.886979][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5549.886979][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5549.886979][   T73]      ___sys_sendmsg+0xee/0x170
[ 5549.886979][   T73]      __sys_sendmsg+0xcd/0x170
[ 5549.886979][   T73]      do_syscall_64+0xc6/0x1e0
[ 5549.886979][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5549.886979][   T73] 
[ 5549.889247][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5549.889247][   T73]      netdev_get_by_index+0x5e/0x80
[ 5549.889247][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5549.889247][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5549.889247][   T73]      ip6_route_add+0x1c/0x140
[ 5549.889247][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5549.889247][   T73]      addrconf_add_dev+0xe2/0x170
[ 5549.889247][   T73]      inet6_addr_add+0x12f/0xa40
[ 5549.889247][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5549.889247][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5549.889247][   T73]      netlink_rcv_skb+0x130/0x360
[ 5549.889247][   T73]      netlink_unicast+0x449/0x710
[ 5549.889247][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5549.889247][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5549.889247][   T73]      ___sys_sendmsg+0xee/0x170
[ 5549.889247][   T73]      __sys_sendmsg+0xcd/0x170
[ 5549.889247][   T73]      do_syscall_64+0xc6/0x1e0
[ 5549.889247][   T73] 
[ 5549.891518][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5549.891518][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5549.891518][   T73]      ipv6_find_idev+0x102/0x170
[ 5549.891518][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5549.891518][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5549.891518][   T73]      netlink_rcv_skb+0x130/0x360
[ 5549.891518][   T73]      netlink_unicast+0x449/0x710
[ 5549.891518][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5549.891518][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5549.891518][   T73]      ___sys_sendmsg+0xee/0x170
[ 5549.891518][   T73]      __sys_sendmsg+0xcd/0x170
[ 5549.891518][   T73]      do_syscall_64+0xc6/0x1e0
[ 5549.891518][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5549.891518][   T73] 
[ 5549.893249][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5549.893249][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5549.893249][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5549.893249][   T73]      ipv6_find_idev+0x102/0x170
[ 5549.893249][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5549.893249][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5549.893249][   T73]      netlink_rcv_skb+0x130/0x360
[ 5549.893249][   T73]      netlink_unicast+0x449/0x710
[ 5549.893249][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5549.893249][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5549.893249][   T73]      ___sys_sendmsg+0xee/0x170
[ 5549.893249][   T73]      __sys_sendmsg+0xcd/0x170
[ 5549.893249][   T73]      do_syscall_64+0xc6/0x1e0
[ 5549.893249][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5549.893249][   T73] 
[ 5559.895789][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5559.896327][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5559.896327][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5559.896327][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5559.896327][   T73]      fib6_nh_init+0xa22/0x1580
[ 5559.896327][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5559.896327][   T73]      ip6_route_add+0x1c/0x140
[ 5559.896327][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5559.896327][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5559.896327][   T73]      netlink_rcv_skb+0x130/0x360
[ 5559.896327][   T73]      netlink_unicast+0x449/0x710
[ 5559.896327][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5559.896327][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5559.896327][   T73]      ___sys_sendmsg+0xee/0x170
[ 5559.896327][   T73]      __sys_sendmsg+0xcd/0x170
[ 5559.896327][   T73]      do_syscall_64+0xc6/0x1e0
[ 5559.896327][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5559.896327][   T73] 
[ 5559.898495][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5559.898495][   T73]      dst_init+0x84/0x4a0
[ 5559.898495][   T73]      dst_alloc+0x97/0x150
[ 5559.898495][   T73]      ip6_dst_alloc+0x23/0x90
[ 5559.898495][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5559.898495][   T73]      ip6_pol_route+0x56f/0x840
[ 5559.898495][   T73]      fib6_rule_lookup+0x456/0x630
[ 5559.898495][   T73]      ip6_route_input+0x59c/0xa50
[ 5559.898495][   T73]      ipv6_rcv+0x397/0x810
[ 5559.898495][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5559.898495][   T73]      process_backlog+0x101/0x620
[ 5559.898495][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5559.898495][   T73]      net_rx_action+0x495/0xbe0
[ 5559.898495][   T73]      __do_softirq+0x1b5/0x7f6
[ 5559.898495][   T73] 
[ 5559.900364][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5559.900364][   T73]      netdev_get_by_index+0x5e/0x80
[ 5559.900364][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5559.900364][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5559.900364][   T73]      ip6_route_add+0x1c/0x140
[ 5559.900364][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5559.900364][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5559.900364][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5559.900364][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5559.900364][   T73]      netlink_rcv_skb+0x130/0x360
[ 5559.900364][   T73]      netlink_unicast+0x449/0x710
[ 5559.900364][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5559.900364][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5559.900364][   T73]      ___sys_sendmsg+0xee/0x170
[ 5559.900364][   T73]      __sys_sendmsg+0xcd/0x170
[ 5559.900364][   T73]      do_syscall_64+0xc6/0x1e0
[ 5559.900364][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5559.900364][   T73] 
[ 5559.902610][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5559.902610][   T73]      netdev_get_by_index+0x5e/0x80
[ 5559.902610][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5559.902610][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5559.902610][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5559.902610][   T73]      ipv6_add_addr+0x411/0x2000
[ 5559.902610][   T73]      inet6_addr_add+0x30e/0xa40
[ 5559.902610][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5559.902610][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5559.902610][   T73]      netlink_rcv_skb+0x130/0x360
[ 5559.902610][   T73]      netlink_unicast+0x449/0x710
[ 5559.902610][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5559.902610][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5559.902610][   T73]      ___sys_sendmsg+0xee/0x170
[ 5559.902610][   T73]      __sys_sendmsg+0xcd/0x170
[ 5559.902610][   T73]      do_syscall_64+0xc6/0x1e0
[ 5559.902610][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5559.902610][   T73] 
[ 5559.904852][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5559.904852][   T73]      netdev_get_by_index+0x5e/0x80
[ 5559.904852][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5559.904852][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5559.904852][   T73]      ip6_route_add+0x1c/0x140
[ 5559.904852][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5559.904852][   T73]      addrconf_add_dev+0xe2/0x170
[ 5559.904852][   T73]      inet6_addr_add+0x12f/0xa40
[ 5559.904852][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5559.904852][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5559.904852][   T73]      netlink_rcv_skb+0x130/0x360
[ 5559.904852][   T73]      netlink_unicast+0x449/0x710
[ 5559.904852][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5559.904852][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5559.904852][   T73]      ___sys_sendmsg+0xee/0x170
[ 5559.904852][   T73]      __sys_sendmsg+0xcd/0x170
[ 5559.904852][   T73]      do_syscall_64+0xc6/0x1e0
[ 5559.904852][   T73] 
[ 5559.907056][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5559.907056][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5559.907056][   T73]      ipv6_find_idev+0x102/0x170
[ 5559.907056][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5559.907056][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5559.907056][   T73]      netlink_rcv_skb+0x130/0x360
[ 5559.907056][   T73]      netlink_unicast+0x449/0x710
[ 5559.907056][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5559.907056][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5559.907056][   T73]      ___sys_sendmsg+0xee/0x170
[ 5559.907056][   T73]      __sys_sendmsg+0xcd/0x170
[ 5559.907056][   T73]      do_syscall_64+0xc6/0x1e0
[ 5559.907056][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5559.907056][   T73] 
[ 5559.908787][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5559.908787][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5559.908787][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5559.908787][   T73]      ipv6_find_idev+0x102/0x170
[ 5559.908787][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5559.908787][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5559.908787][   T73]      netlink_rcv_skb+0x130/0x360
[ 5559.908787][   T73]      netlink_unicast+0x449/0x710
[ 5559.908787][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5559.908787][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5559.908787][   T73]      ___sys_sendmsg+0xee/0x170
[ 5559.908787][   T73]      __sys_sendmsg+0xcd/0x170
[ 5559.908787][   T73]      do_syscall_64+0xc6/0x1e0
[ 5559.908787][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5559.908787][   T73] 
[ 5559.910684][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5559.910985][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5559.910985][   T73]      netdev_get_by_index+0x5e/0x80
[ 5559.910985][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5559.910985][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5559.910985][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5559.910985][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5559.910985][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5559.910985][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5559.910985][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5559.910985][   T73]      addrconf_dad_begin+0x310/0x670
[ 5559.910985][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5559.910985][   T73]      process_one_work+0x84d/0x18a0
[ 5559.910985][   T73]      worker_thread+0x587/0xd30
[ 5559.910985][   T73]      kthread+0x28a/0x350
[ 5559.910985][   T73]      ret_from_fork+0x31/0x70
[ 5559.910985][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5559.910985][   T73] 
[ 5559.913123][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5559.913123][   T73]      netdev_get_by_index+0x5e/0x80
[ 5559.913123][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5559.913123][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5559.913123][   T73]      ip6_route_add+0x1c/0x140
[ 5559.913123][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5559.913123][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5559.913123][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5559.913123][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5559.913123][   T73]      netlink_rcv_skb+0x130/0x360
[ 5559.913123][   T73]      netlink_unicast+0x449/0x710
[ 5559.913123][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5559.913123][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5559.913123][   T73]      ___sys_sendmsg+0xee/0x170
[ 5559.913123][   T73]      __sys_sendmsg+0xcd/0x170
[ 5559.913123][   T73]      do_syscall_64+0xc6/0x1e0
[ 5559.913123][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5559.913123][   T73] 
[ 5559.915363][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5559.915363][   T73]      netdev_get_by_index+0x5e/0x80
[ 5559.915363][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5559.915363][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5559.915363][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5559.915363][   T73]      ipv6_add_addr+0x411/0x2000
[ 5559.915363][   T73]      inet6_addr_add+0x30e/0xa40
[ 5559.915363][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5559.915363][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5559.915363][   T73]      netlink_rcv_skb+0x130/0x360
[ 5559.915363][   T73]      netlink_unicast+0x449/0x710
[ 5559.915363][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5559.915363][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5559.915363][   T73]      ___sys_sendmsg+0xee/0x170
[ 5559.915363][   T73]      __sys_sendmsg+0xcd/0x170
[ 5559.915363][   T73]      do_syscall_64+0xc6/0x1e0
[ 5559.915363][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5559.915363][   T73] 
[ 5559.917604][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5559.917604][   T73]      netdev_get_by_index+0x5e/0x80
[ 5559.917604][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5559.917604][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5559.917604][   T73]      ip6_route_add+0x1c/0x140
[ 5559.917604][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5559.917604][   T73]      addrconf_add_dev+0xe2/0x170
[ 5559.917604][   T73]      inet6_addr_add+0x12f/0xa40
[ 5559.917604][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5559.917604][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5559.917604][   T73]      netlink_rcv_skb+0x130/0x360
[ 5559.917604][   T73]      netlink_unicast+0x449/0x710
[ 5559.917604][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5559.917604][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5559.917604][   T73]      ___sys_sendmsg+0xee/0x170
[ 5559.917604][   T73]      __sys_sendmsg+0xcd/0x170
[ 5559.917604][   T73]      do_syscall_64+0xc6/0x1e0
[ 5559.917604][   T73] 
[ 5559.919817][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5559.919817][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5559.919817][   T73]      ipv6_find_idev+0x102/0x170
[ 5559.919817][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5559.919817][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5559.919817][   T73]      netlink_rcv_skb+0x130/0x360
[ 5559.919817][   T73]      netlink_unicast+0x449/0x710
[ 5559.919817][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5559.919817][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5559.919817][   T73]      ___sys_sendmsg+0xee/0x170
[ 5559.919817][   T73]      __sys_sendmsg+0xcd/0x170
[ 5559.919817][   T73]      do_syscall_64+0xc6/0x1e0
[ 5559.919817][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5559.919817][   T73] 
[ 5559.921553][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5559.921553][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5559.921553][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5559.921553][   T73]      ipv6_find_idev+0x102/0x170
[ 5559.921553][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5559.921553][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5559.921553][   T73]      netlink_rcv_skb+0x130/0x360
[ 5559.921553][   T73]      netlink_unicast+0x449/0x710
[ 5559.921553][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5559.921553][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5559.921553][   T73]      ___sys_sendmsg+0xee/0x170
[ 5559.921553][   T73]      __sys_sendmsg+0xcd/0x170
[ 5559.921553][   T73]      do_syscall_64+0xc6/0x1e0
[ 5559.921553][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5559.921553][   T73] 
[ 5559.923428][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5559.923734][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5559.923734][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5559.923734][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5559.923734][   T73]      fib6_nh_init+0xa22/0x1580
[ 5559.923734][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5559.923734][   T73]      ip6_route_add+0x1c/0x140
[ 5559.923734][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5559.923734][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5559.923734][   T73]      netlink_rcv_skb+0x130/0x360
[ 5559.923734][   T73]      netlink_unicast+0x449/0x710
[ 5559.923734][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5559.923734][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5559.923734][   T73]      ___sys_sendmsg+0xee/0x170
[ 5559.923734][   T73]      __sys_sendmsg+0xcd/0x170
[ 5559.923734][   T73]      do_syscall_64+0xc6/0x1e0
[ 5559.923734][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5559.923734][   T73] 
[ 5559.926039][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5559.926039][   T73]      dst_init+0x84/0x4a0
[ 5559.926039][   T73]      dst_alloc+0x97/0x150
[ 5559.926039][   T73]      ip6_dst_alloc+0x23/0x90
[ 5559.926039][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5559.926039][   T73]      ip6_pol_route+0x56f/0x840
[ 5559.926039][   T73]      fib6_rule_lookup+0x456/0x630
[ 5559.926039][   T73]      ip6_route_input+0x59c/0xa50
[ 5559.926039][   T73]      ipv6_rcv+0x397/0x810
[ 5559.926039][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5559.926039][   T73]      process_backlog+0x101/0x620
[ 5559.926039][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5559.926039][   T73]      net_rx_action+0x495/0xbe0
[ 5559.926039][   T73]      __do_softirq+0x1b5/0x7f6
[ 5559.926039][   T73] 
[ 5559.928050][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5559.928050][   T73]      netdev_get_by_index+0x5e/0x80
[ 5559.928050][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5559.928050][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5559.928050][   T73]      ip6_route_add+0x1c/0x140
[ 5559.928050][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5559.928050][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5559.928050][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5559.928050][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5559.928050][   T73]      netlink_rcv_skb+0x130/0x360
[ 5559.928050][   T73]      netlink_unicast+0x449/0x710
[ 5559.928050][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5559.928050][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5559.928050][   T73]      ___sys_sendmsg+0xee/0x170
[ 5559.928050][   T73]      __sys_sendmsg+0xcd/0x170
[ 5559.928050][   T73]      do_syscall_64+0xc6/0x1e0
[ 5559.928050][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5559.928050][   T73] 
[ 5559.930514][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5559.930514][   T73]      netdev_get_by_index+0x5e/0x80
[ 5559.930514][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5559.930514][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5559.930514][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5559.930514][   T73]      ipv6_add_addr+0x411/0x2000
[ 5559.930514][   T73]      inet6_addr_add+0x30e/0xa40
[ 5559.930514][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5559.930514][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5559.930514][   T73]      netlink_rcv_skb+0x130/0x360
[ 5559.930514][   T73]      netlink_unicast+0x449/0x710
[ 5559.930514][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5559.930514][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5559.930514][   T73]      ___sys_sendmsg+0xee/0x170
[ 5559.930514][   T73]      __sys_sendmsg+0xcd/0x170
[ 5559.930514][   T73]      do_syscall_64+0xc6/0x1e0
[ 5559.930514][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5559.930514][   T73] 
[ 5559.932979][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5559.932979][   T73]      netdev_get_by_index+0x5e/0x80
[ 5559.932979][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5559.932979][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5559.932979][   T73]      ip6_route_add+0x1c/0x140
[ 5559.932979][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5559.932979][   T73]      addrconf_add_dev+0xe2/0x170
[ 5559.932979][   T73]      inet6_addr_add+0x12f/0xa40
[ 5559.932979][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5559.932979][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5559.932979][   T73]      netlink_rcv_skb+0x130/0x360
[ 5559.932979][   T73]      netlink_unicast+0x449/0x710
[ 5559.932979][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5559.932979][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5559.932979][   T73]      ___sys_sendmsg+0xee/0x170
[ 5559.932979][   T73]      __sys_sendmsg+0xcd/0x170
[ 5559.932979][   T73]      do_syscall_64+0xc6/0x1e0
[ 5559.932979][   T73] 
[ 5559.935447][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5559.935447][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5559.935447][   T73]      ipv6_find_idev+0x102/0x170
[ 5559.935447][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5559.935447][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5559.935447][   T73]      netlink_rcv_skb+0x130/0x360
[ 5559.935447][   T73]      netlink_unicast+0x449/0x710
[ 5559.935447][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5559.935447][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5559.935447][   T73]      ___sys_sendmsg+0xee/0x170
[ 5559.935447][   T73]      __sys_sendmsg+0xcd/0x170
[ 5559.935447][   T73]      do_syscall_64+0xc6/0x1e0
[ 5559.935447][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5559.935447][   T73] 
[ 5559.937366][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5559.937366][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5559.937366][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5559.937366][   T73]      ipv6_find_idev+0x102/0x170
[ 5559.937366][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5559.937366][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5559.937366][   T73]      netlink_rcv_skb+0x130/0x360
[ 5559.937366][   T73]      netlink_unicast+0x449/0x710
[ 5559.937366][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5559.937366][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5559.937366][   T73]      ___sys_sendmsg+0xee/0x170
[ 5559.937366][   T73]      __sys_sendmsg+0xcd/0x170
[ 5559.937366][   T73]      do_syscall_64+0xc6/0x1e0
[ 5559.937366][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5559.937366][   T73] 
[ 5559.939447][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5559.939835][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5559.939835][   T73]      netdev_get_by_index+0x5e/0x80
[ 5559.939835][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5559.939835][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5559.939835][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5559.939835][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5559.939835][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5559.939835][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5559.939835][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5559.939835][   T73]      addrconf_dad_begin+0x310/0x670
[ 5559.939835][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5559.939835][   T73]      process_one_work+0x84d/0x18a0
[ 5559.939835][   T73]      worker_thread+0x587/0xd30
[ 5559.939835][   T73]      kthread+0x28a/0x350
[ 5559.939835][   T73]      ret_from_fork+0x31/0x70
[ 5559.939835][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5559.939835][   T73] 
[ 5559.942113][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5559.942113][   T73]      netdev_get_by_index+0x5e/0x80
[ 5559.942113][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5559.942113][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5559.942113][   T73]      ip6_route_add+0x1c/0x140
[ 5559.942113][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5559.942113][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5559.942113][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5559.942113][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5559.942113][   T73]      netlink_rcv_skb+0x130/0x360
[ 5559.942113][   T73]      netlink_unicast+0x449/0x710
[ 5559.942113][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5559.942113][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5559.942113][   T73]      ___sys_sendmsg+0xee/0x170
[ 5559.942113][   T73]      __sys_sendmsg+0xcd/0x170
[ 5559.942113][   T73]      do_syscall_64+0xc6/0x1e0
[ 5559.942113][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5559.942113][   T73] 
[ 5559.944668][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5559.944668][   T73]      netdev_get_by_index+0x5e/0x80
[ 5559.944668][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5559.944668][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5559.944668][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5559.944668][   T73]      ipv6_add_addr+0x411/0x2000
[ 5559.944668][   T73]      inet6_addr_add+0x30e/0xa40
[ 5559.944668][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5559.944668][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5559.944668][   T73]      netlink_rcv_skb+0x130/0x360
[ 5559.944668][   T73]      netlink_unicast+0x449/0x710
[ 5559.944668][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5559.944668][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5559.944668][   T73]      ___sys_sendmsg+0xee/0x170
[ 5559.944668][   T73]      __sys_sendmsg+0xcd/0x170
[ 5559.944668][   T73]      do_syscall_64+0xc6/0x1e0
[ 5559.944668][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5559.944668][   T73] 
[ 5559.947163][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5559.947163][   T73]      netdev_get_by_index+0x5e/0x80
[ 5559.947163][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5559.947163][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5559.947163][   T73]      ip6_route_add+0x1c/0x140
[ 5559.947163][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5559.947163][   T73]      addrconf_add_dev+0xe2/0x170
[ 5559.947163][   T73]      inet6_addr_add+0x12f/0xa40
[ 5559.947163][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5559.947163][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5559.947163][   T73]      netlink_rcv_skb+0x130/0x360
[ 5559.947163][   T73]      netlink_unicast+0x449/0x710
[ 5559.947163][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5559.947163][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5559.947163][   T73]      ___sys_sendmsg+0xee/0x170
[ 5559.947163][   T73]      __sys_sendmsg+0xcd/0x170
[ 5559.947163][   T73]      do_syscall_64+0xc6/0x1e0
[ 5559.947163][   T73] 
[ 5559.949651][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5559.949651][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5559.949651][   T73]      ipv6_find_idev+0x102/0x170
[ 5559.949651][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5559.949651][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5559.949651][   T73]      netlink_rcv_skb+0x130/0x360
[ 5559.949651][   T73]      netlink_unicast+0x449/0x710
[ 5559.949651][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5559.949651][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5559.949651][   T73]      ___sys_sendmsg+0xee/0x170
[ 5559.949651][   T73]      __sys_sendmsg+0xcd/0x170
[ 5559.949651][   T73]      do_syscall_64+0xc6/0x1e0
[ 5559.949651][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5559.949651][   T73] 
[ 5559.951566][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5559.951566][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5559.951566][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5559.951566][   T73]      ipv6_find_idev+0x102/0x170
[ 5559.951566][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5559.951566][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5559.951566][   T73]      netlink_rcv_skb+0x130/0x360
[ 5559.951566][   T73]      netlink_unicast+0x449/0x710
[ 5559.951566][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5559.951566][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5559.951566][   T73]      ___sys_sendmsg+0xee/0x170
[ 5559.951566][   T73]      __sys_sendmsg+0xcd/0x170
[ 5559.951566][   T73]      do_syscall_64+0xc6/0x1e0
[ 5559.951566][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5559.951566][   T73] 
[ 5570.167767][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5570.168297][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5570.168297][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5570.168297][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5570.168297][   T73]      fib6_nh_init+0xa22/0x1580
[ 5570.168297][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5570.168297][   T73]      ip6_route_add+0x1c/0x140
[ 5570.168297][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5570.168297][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5570.168297][   T73]      netlink_rcv_skb+0x130/0x360
[ 5570.168297][   T73]      netlink_unicast+0x449/0x710
[ 5570.168297][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5570.168297][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5570.168297][   T73]      ___sys_sendmsg+0xee/0x170
[ 5570.168297][   T73]      __sys_sendmsg+0xcd/0x170
[ 5570.168297][   T73]      do_syscall_64+0xc6/0x1e0
[ 5570.168297][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5570.168297][   T73] 
[ 5570.170427][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5570.170427][   T73]      dst_init+0x84/0x4a0
[ 5570.170427][   T73]      dst_alloc+0x97/0x150
[ 5570.170427][   T73]      ip6_dst_alloc+0x23/0x90
[ 5570.170427][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5570.170427][   T73]      ip6_pol_route+0x56f/0x840
[ 5570.170427][   T73]      fib6_rule_lookup+0x456/0x630
[ 5570.170427][   T73]      ip6_route_input+0x59c/0xa50
[ 5570.170427][   T73]      ipv6_rcv+0x397/0x810
[ 5570.170427][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5570.170427][   T73]      process_backlog+0x101/0x620
[ 5570.170427][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5570.170427][   T73]      net_rx_action+0x495/0xbe0
[ 5570.170427][   T73]      __do_softirq+0x1b5/0x7f6
[ 5570.170427][   T73] 
[ 5570.172263][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5570.172263][   T73]      netdev_get_by_index+0x5e/0x80
[ 5570.172263][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5570.172263][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5570.172263][   T73]      ip6_route_add+0x1c/0x140
[ 5570.172263][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5570.172263][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5570.172263][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5570.172263][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5570.172263][   T73]      netlink_rcv_skb+0x130/0x360
[ 5570.172263][   T73]      netlink_unicast+0x449/0x710
[ 5570.172263][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5570.172263][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5570.172263][   T73]      ___sys_sendmsg+0xee/0x170
[ 5570.172263][   T73]      __sys_sendmsg+0xcd/0x170
[ 5570.172263][   T73]      do_syscall_64+0xc6/0x1e0
[ 5570.172263][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5570.172263][   T73] 
[ 5570.174513][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5570.174513][   T73]      netdev_get_by_index+0x5e/0x80
[ 5570.174513][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5570.174513][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5570.174513][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5570.174513][   T73]      ipv6_add_addr+0x411/0x2000
[ 5570.174513][   T73]      inet6_addr_add+0x30e/0xa40
[ 5570.174513][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5570.174513][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5570.174513][   T73]      netlink_rcv_skb+0x130/0x360
[ 5570.174513][   T73]      netlink_unicast+0x449/0x710
[ 5570.174513][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5570.174513][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5570.174513][   T73]      ___sys_sendmsg+0xee/0x170
[ 5570.174513][   T73]      __sys_sendmsg+0xcd/0x170
[ 5570.174513][   T73]      do_syscall_64+0xc6/0x1e0
[ 5570.174513][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5570.174513][   T73] 
[ 5570.176774][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5570.176774][   T73]      netdev_get_by_index+0x5e/0x80
[ 5570.176774][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5570.176774][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5570.176774][   T73]      ip6_route_add+0x1c/0x140
[ 5570.176774][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5570.176774][   T73]      addrconf_add_dev+0xe2/0x170
[ 5570.176774][   T73]      inet6_addr_add+0x12f/0xa40
[ 5570.176774][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5570.176774][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5570.176774][   T73]      netlink_rcv_skb+0x130/0x360
[ 5570.176774][   T73]      netlink_unicast+0x449/0x710
[ 5570.176774][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5570.176774][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5570.176774][   T73]      ___sys_sendmsg+0xee/0x170
[ 5570.176774][   T73]      __sys_sendmsg+0xcd/0x170
[ 5570.176774][   T73]      do_syscall_64+0xc6/0x1e0
[ 5570.176774][   T73] 
[ 5570.178978][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5570.178978][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5570.178978][   T73]      ipv6_find_idev+0x102/0x170
[ 5570.178978][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5570.178978][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5570.178978][   T73]      netlink_rcv_skb+0x130/0x360
[ 5570.178978][   T73]      netlink_unicast+0x449/0x710
[ 5570.178978][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5570.178978][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5570.178978][   T73]      ___sys_sendmsg+0xee/0x170
[ 5570.178978][   T73]      __sys_sendmsg+0xcd/0x170
[ 5570.178978][   T73]      do_syscall_64+0xc6/0x1e0
[ 5570.178978][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5570.178978][   T73] 
[ 5570.180712][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5570.180712][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5570.180712][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5570.180712][   T73]      ipv6_find_idev+0x102/0x170
[ 5570.180712][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5570.180712][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5570.180712][   T73]      netlink_rcv_skb+0x130/0x360
[ 5570.180712][   T73]      netlink_unicast+0x449/0x710
[ 5570.180712][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5570.180712][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5570.180712][   T73]      ___sys_sendmsg+0xee/0x170
[ 5570.180712][   T73]      __sys_sendmsg+0xcd/0x170
[ 5570.180712][   T73]      do_syscall_64+0xc6/0x1e0
[ 5570.180712][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5570.180712][   T73] 
[ 5570.182607][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5570.182935][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5570.182935][   T73]      netdev_get_by_index+0x5e/0x80
[ 5570.182935][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5570.182935][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5570.182935][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5570.182935][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5570.182935][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5570.182935][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5570.182935][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5570.182935][   T73]      addrconf_dad_begin+0x310/0x670
[ 5570.182935][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5570.182935][   T73]      process_one_work+0x84d/0x18a0
[ 5570.182935][   T73]      worker_thread+0x587/0xd30
[ 5570.182935][   T73]      kthread+0x28a/0x350
[ 5570.182935][   T73]      ret_from_fork+0x31/0x70
[ 5570.182935][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5570.182935][   T73] 
[ 5570.185086][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5570.185086][   T73]      netdev_get_by_index+0x5e/0x80
[ 5570.185086][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5570.185086][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5570.185086][   T73]      ip6_route_add+0x1c/0x140
[ 5570.185086][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5570.185086][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5570.185086][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5570.185086][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5570.185086][   T73]      netlink_rcv_skb+0x130/0x360
[ 5570.185086][   T73]      netlink_unicast+0x449/0x710
[ 5570.185086][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5570.185086][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5570.185086][   T73]      ___sys_sendmsg+0xee/0x170
[ 5570.185086][   T73]      __sys_sendmsg+0xcd/0x170
[ 5570.185086][   T73]      do_syscall_64+0xc6/0x1e0
[ 5570.185086][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5570.185086][   T73] 
[ 5570.187337][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5570.187337][   T73]      netdev_get_by_index+0x5e/0x80
[ 5570.187337][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5570.187337][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5570.187337][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5570.187337][   T73]      ipv6_add_addr+0x411/0x2000
[ 5570.187337][   T73]      inet6_addr_add+0x30e/0xa40
[ 5570.187337][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5570.187337][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5570.187337][   T73]      netlink_rcv_skb+0x130/0x360
[ 5570.187337][   T73]      netlink_unicast+0x449/0x710
[ 5570.187337][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5570.187337][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5570.187337][   T73]      ___sys_sendmsg+0xee/0x170
[ 5570.187337][   T73]      __sys_sendmsg+0xcd/0x170
[ 5570.187337][   T73]      do_syscall_64+0xc6/0x1e0
[ 5570.187337][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5570.187337][   T73] 
[ 5570.189574][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5570.189574][   T73]      netdev_get_by_index+0x5e/0x80
[ 5570.189574][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5570.189574][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5570.189574][   T73]      ip6_route_add+0x1c/0x140
[ 5570.189574][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5570.189574][   T73]      addrconf_add_dev+0xe2/0x170
[ 5570.189574][   T73]      inet6_addr_add+0x12f/0xa40
[ 5570.189574][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5570.189574][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5570.189574][   T73]      netlink_rcv_skb+0x130/0x360
[ 5570.189574][   T73]      netlink_unicast+0x449/0x710
[ 5570.189574][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5570.189574][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5570.189574][   T73]      ___sys_sendmsg+0xee/0x170
[ 5570.189574][   T73]      __sys_sendmsg+0xcd/0x170
[ 5570.189574][   T73]      do_syscall_64+0xc6/0x1e0
[ 5570.189574][   T73] 
[ 5570.191779][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5570.191779][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5570.191779][   T73]      ipv6_find_idev+0x102/0x170
[ 5570.191779][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5570.191779][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5570.191779][   T73]      netlink_rcv_skb+0x130/0x360
[ 5570.191779][   T73]      netlink_unicast+0x449/0x710
[ 5570.191779][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5570.191779][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5570.191779][   T73]      ___sys_sendmsg+0xee/0x170
[ 5570.191779][   T73]      __sys_sendmsg+0xcd/0x170
[ 5570.191779][   T73]      do_syscall_64+0xc6/0x1e0
[ 5570.191779][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5570.191779][   T73] 
[ 5570.193511][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5570.193511][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5570.193511][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5570.193511][   T73]      ipv6_find_idev+0x102/0x170
[ 5570.193511][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5570.193511][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5570.193511][   T73]      netlink_rcv_skb+0x130/0x360
[ 5570.193511][   T73]      netlink_unicast+0x449/0x710
[ 5570.193511][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5570.193511][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5570.193511][   T73]      ___sys_sendmsg+0xee/0x170
[ 5570.193511][   T73]      __sys_sendmsg+0xcd/0x170
[ 5570.193511][   T73]      do_syscall_64+0xc6/0x1e0
[ 5570.193511][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5570.193511][   T73] 
[ 5570.195376][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5570.195674][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5570.195674][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5570.195674][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5570.195674][   T73]      fib6_nh_init+0xa22/0x1580
[ 5570.195674][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5570.195674][   T73]      ip6_route_add+0x1c/0x140
[ 5570.195674][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5570.195674][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5570.195674][   T73]      netlink_rcv_skb+0x130/0x360
[ 5570.195674][   T73]      netlink_unicast+0x449/0x710
[ 5570.195674][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5570.195674][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5570.195674][   T73]      ___sys_sendmsg+0xee/0x170
[ 5570.195674][   T73]      __sys_sendmsg+0xcd/0x170
[ 5570.195674][   T73]      do_syscall_64+0xc6/0x1e0
[ 5570.195674][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5570.195674][   T73] 
[ 5570.197974][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5570.197974][   T73]      dst_init+0x84/0x4a0
[ 5570.197974][   T73]      dst_alloc+0x97/0x150
[ 5570.197974][   T73]      ip6_dst_alloc+0x23/0x90
[ 5570.197974][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5570.197974][   T73]      ip6_pol_route+0x56f/0x840
[ 5570.197974][   T73]      fib6_rule_lookup+0x456/0x630
[ 5570.197974][   T73]      ip6_route_input+0x59c/0xa50
[ 5570.197974][   T73]      ipv6_rcv+0x397/0x810
[ 5570.197974][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5570.197974][   T73]      process_backlog+0x101/0x620
[ 5570.197974][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5570.197974][   T73]      net_rx_action+0x495/0xbe0
[ 5570.197974][   T73]      __do_softirq+0x1b5/0x7f6
[ 5570.197974][   T73] 
[ 5570.200049][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5570.200049][   T73]      netdev_get_by_index+0x5e/0x80
[ 5570.200049][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5570.200049][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5570.200049][   T73]      ip6_route_add+0x1c/0x140
[ 5570.200049][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5570.200049][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5570.200049][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5570.200049][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5570.200049][   T73]      netlink_rcv_skb+0x130/0x360
[ 5570.200049][   T73]      netlink_unicast+0x449/0x710
[ 5570.200049][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5570.200049][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5570.200049][   T73]      ___sys_sendmsg+0xee/0x170
[ 5570.200049][   T73]      __sys_sendmsg+0xcd/0x170
[ 5570.200049][   T73]      do_syscall_64+0xc6/0x1e0
[ 5570.200049][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5570.200049][   T73] 
[ 5570.202519][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5570.202519][   T73]      netdev_get_by_index+0x5e/0x80
[ 5570.202519][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5570.202519][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5570.202519][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5570.202519][   T73]      ipv6_add_addr+0x411/0x2000
[ 5570.202519][   T73]      inet6_addr_add+0x30e/0xa40
[ 5570.202519][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5570.202519][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5570.202519][   T73]      netlink_rcv_skb+0x130/0x360
[ 5570.202519][   T73]      netlink_unicast+0x449/0x710
[ 5570.202519][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5570.202519][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5570.202519][   T73]      ___sys_sendmsg+0xee/0x170
[ 5570.202519][   T73]      __sys_sendmsg+0xcd/0x170
[ 5570.202519][   T73]      do_syscall_64+0xc6/0x1e0
[ 5570.202519][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5570.202519][   T73] 
[ 5570.204935][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5570.204935][   T73]      netdev_get_by_index+0x5e/0x80
[ 5570.204935][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5570.204935][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5570.204935][   T73]      ip6_route_add+0x1c/0x140
[ 5570.204935][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5570.204935][   T73]      addrconf_add_dev+0xe2/0x170
[ 5570.204935][   T73]      inet6_addr_add+0x12f/0xa40
[ 5570.204935][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5570.204935][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5570.204935][   T73]      netlink_rcv_skb+0x130/0x360
[ 5570.204935][   T73]      netlink_unicast+0x449/0x710
[ 5570.204935][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5570.204935][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5570.204935][   T73]      ___sys_sendmsg+0xee/0x170
[ 5570.204935][   T73]      __sys_sendmsg+0xcd/0x170
[ 5570.204935][   T73]      do_syscall_64+0xc6/0x1e0
[ 5570.204935][   T73] 
[ 5570.207322][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5570.207322][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5570.207322][   T73]      ipv6_find_idev+0x102/0x170
[ 5570.207322][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5570.207322][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5570.207322][   T73]      netlink_rcv_skb+0x130/0x360
[ 5570.207322][   T73]      netlink_unicast+0x449/0x710
[ 5570.207322][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5570.207322][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5570.207322][   T73]      ___sys_sendmsg+0xee/0x170
[ 5570.207322][   T73]      __sys_sendmsg+0xcd/0x170
[ 5570.207322][   T73]      do_syscall_64+0xc6/0x1e0
[ 5570.207322][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5570.207322][   T73] 
[ 5570.209299][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5570.209299][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5570.209299][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5570.209299][   T73]      ipv6_find_idev+0x102/0x170
[ 5570.209299][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5570.209299][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5570.209299][   T73]      netlink_rcv_skb+0x130/0x360
[ 5570.209299][   T73]      netlink_unicast+0x449/0x710
[ 5570.209299][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5570.209299][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5570.209299][   T73]      ___sys_sendmsg+0xee/0x170
[ 5570.209299][   T73]      __sys_sendmsg+0xcd/0x170
[ 5570.209299][   T73]      do_syscall_64+0xc6/0x1e0
[ 5570.209299][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5570.209299][   T73] 
[ 5570.211799][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5570.212104][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5570.212104][   T73]      netdev_get_by_index+0x5e/0x80
[ 5570.212104][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5570.212104][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5570.212104][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5570.212104][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5570.212104][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5570.212104][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5570.212104][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5570.212104][   T73]      addrconf_dad_begin+0x310/0x670
[ 5570.212104][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5570.212104][   T73]      process_one_work+0x84d/0x18a0
[ 5570.212104][   T73]      worker_thread+0x587/0xd30
[ 5570.212104][   T73]      kthread+0x28a/0x350
[ 5570.212104][   T73]      ret_from_fork+0x31/0x70
[ 5570.212104][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5570.212104][   T73] 
[ 5570.214248][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5570.214248][   T73]      netdev_get_by_index+0x5e/0x80
[ 5570.214248][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5570.214248][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5570.214248][   T73]      ip6_route_add+0x1c/0x140
[ 5570.214248][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5570.214248][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5570.214248][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5570.214248][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5570.214248][   T73]      netlink_rcv_skb+0x130/0x360
[ 5570.214248][   T73]      netlink_unicast+0x449/0x710
[ 5570.214248][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5570.214248][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5570.214248][   T73]      ___sys_sendmsg+0xee/0x170
[ 5570.214248][   T73]      __sys_sendmsg+0xcd/0x170
[ 5570.214248][   T73]      do_syscall_64+0xc6/0x1e0
[ 5570.214248][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5570.214248][   T73] 
[ 5570.216601][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5570.216601][   T73]      netdev_get_by_index+0x5e/0x80
[ 5570.216601][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5570.216601][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5570.216601][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5570.216601][   T73]      ipv6_add_addr+0x411/0x2000
[ 5570.216601][   T73]      inet6_addr_add+0x30e/0xa40
[ 5570.216601][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5570.216601][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5570.216601][   T73]      netlink_rcv_skb+0x130/0x360
[ 5570.216601][   T73]      netlink_unicast+0x449/0x710
[ 5570.216601][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5570.216601][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5570.216601][   T73]      ___sys_sendmsg+0xee/0x170
[ 5570.216601][   T73]      __sys_sendmsg+0xcd/0x170
[ 5570.216601][   T73]      do_syscall_64+0xc6/0x1e0
[ 5570.216601][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5570.216601][   T73] 
[ 5570.219105][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5570.219105][   T73]      netdev_get_by_index+0x5e/0x80
[ 5570.219105][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5570.219105][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5570.219105][   T73]      ip6_route_add+0x1c/0x140
[ 5570.219105][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5570.219105][   T73]      addrconf_add_dev+0xe2/0x170
[ 5570.219105][   T73]      inet6_addr_add+0x12f/0xa40
[ 5570.219105][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5570.219105][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5570.219105][   T73]      netlink_rcv_skb+0x130/0x360
[ 5570.219105][   T73]      netlink_unicast+0x449/0x710
[ 5570.219105][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5570.219105][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5570.219105][   T73]      ___sys_sendmsg+0xee/0x170
[ 5570.219105][   T73]      __sys_sendmsg+0xcd/0x170
[ 5570.219105][   T73]      do_syscall_64+0xc6/0x1e0
[ 5570.219105][   T73] 
[ 5570.221551][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5570.221551][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5570.221551][   T73]      ipv6_find_idev+0x102/0x170
[ 5570.221551][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5570.221551][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5570.221551][   T73]      netlink_rcv_skb+0x130/0x360
[ 5570.221551][   T73]      netlink_unicast+0x449/0x710
[ 5570.221551][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5570.221551][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5570.221551][   T73]      ___sys_sendmsg+0xee/0x170
[ 5570.221551][   T73]      __sys_sendmsg+0xcd/0x170
[ 5570.221551][   T73]      do_syscall_64+0xc6/0x1e0
[ 5570.221551][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5570.221551][   T73] 
[ 5570.223545][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5570.223545][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5570.223545][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5570.223545][   T73]      ipv6_find_idev+0x102/0x170
[ 5570.223545][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5570.223545][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5570.223545][   T73]      netlink_rcv_skb+0x130/0x360
[ 5570.223545][   T73]      netlink_unicast+0x449/0x710
[ 5570.223545][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5570.223545][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5570.223545][   T73]      ___sys_sendmsg+0xee/0x170
[ 5570.223545][   T73]      __sys_sendmsg+0xcd/0x170
[ 5570.223545][   T73]      do_syscall_64+0xc6/0x1e0
[ 5570.223545][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5570.223545][   T73] 
[ 5580.463689][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5580.464175][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5580.464175][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5580.464175][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5580.464175][   T73]      fib6_nh_init+0xa22/0x1580
[ 5580.464175][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5580.464175][   T73]      ip6_route_add+0x1c/0x140
[ 5580.464175][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5580.464175][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5580.464175][   T73]      netlink_rcv_skb+0x130/0x360
[ 5580.464175][   T73]      netlink_unicast+0x449/0x710
[ 5580.464175][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5580.464175][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5580.464175][   T73]      ___sys_sendmsg+0xee/0x170
[ 5580.464175][   T73]      __sys_sendmsg+0xcd/0x170
[ 5580.464175][   T73]      do_syscall_64+0xc6/0x1e0
[ 5580.464175][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5580.464175][   T73] 
[ 5580.466144][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5580.466144][   T73]      dst_init+0x84/0x4a0
[ 5580.466144][   T73]      dst_alloc+0x97/0x150
[ 5580.466144][   T73]      ip6_dst_alloc+0x23/0x90
[ 5580.466144][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5580.466144][   T73]      ip6_pol_route+0x56f/0x840
[ 5580.466144][   T73]      fib6_rule_lookup+0x456/0x630
[ 5580.466144][   T73]      ip6_route_input+0x59c/0xa50
[ 5580.466144][   T73]      ipv6_rcv+0x397/0x810
[ 5580.466144][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5580.466144][   T73]      process_backlog+0x101/0x620
[ 5580.466144][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5580.466144][   T73]      net_rx_action+0x495/0xbe0
[ 5580.466144][   T73]      __do_softirq+0x1b5/0x7f6
[ 5580.466144][   T73] 
[ 5580.467850][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5580.467850][   T73]      netdev_get_by_index+0x5e/0x80
[ 5580.467850][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5580.467850][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5580.467850][   T73]      ip6_route_add+0x1c/0x140
[ 5580.467850][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5580.467850][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5580.467850][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5580.467850][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5580.467850][   T73]      netlink_rcv_skb+0x130/0x360
[ 5580.467850][   T73]      netlink_unicast+0x449/0x710
[ 5580.467850][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5580.467850][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5580.467850][   T73]      ___sys_sendmsg+0xee/0x170
[ 5580.467850][   T73]      __sys_sendmsg+0xcd/0x170
[ 5580.467850][   T73]      do_syscall_64+0xc6/0x1e0
[ 5580.467850][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5580.467850][   T73] 
[ 5580.469910][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5580.469910][   T73]      netdev_get_by_index+0x5e/0x80
[ 5580.469910][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5580.469910][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5580.469910][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5580.469910][   T73]      ipv6_add_addr+0x411/0x2000
[ 5580.469910][   T73]      inet6_addr_add+0x30e/0xa40
[ 5580.469910][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5580.469910][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5580.469910][   T73]      netlink_rcv_skb+0x130/0x360
[ 5580.469910][   T73]      netlink_unicast+0x449/0x710
[ 5580.469910][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5580.469910][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5580.469910][   T73]      ___sys_sendmsg+0xee/0x170
[ 5580.469910][   T73]      __sys_sendmsg+0xcd/0x170
[ 5580.469910][   T73]      do_syscall_64+0xc6/0x1e0
[ 5580.469910][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5580.469910][   T73] 
[ 5580.471987][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5580.471987][   T73]      netdev_get_by_index+0x5e/0x80
[ 5580.471987][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5580.471987][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5580.471987][   T73]      ip6_route_add+0x1c/0x140
[ 5580.471987][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5580.471987][   T73]      addrconf_add_dev+0xe2/0x170
[ 5580.471987][   T73]      inet6_addr_add+0x12f/0xa40
[ 5580.471987][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5580.471987][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5580.471987][   T73]      netlink_rcv_skb+0x130/0x360
[ 5580.471987][   T73]      netlink_unicast+0x449/0x710
[ 5580.471987][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5580.471987][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5580.471987][   T73]      ___sys_sendmsg+0xee/0x170
[ 5580.471987][   T73]      __sys_sendmsg+0xcd/0x170
[ 5580.471987][   T73]      do_syscall_64+0xc6/0x1e0
[ 5580.471987][   T73] 
[ 5580.474002][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5580.474002][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5580.474002][   T73]      ipv6_find_idev+0x102/0x170
[ 5580.474002][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5580.474002][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5580.474002][   T73]      netlink_rcv_skb+0x130/0x360
[ 5580.474002][   T73]      netlink_unicast+0x449/0x710
[ 5580.474002][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5580.474002][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5580.474002][   T73]      ___sys_sendmsg+0xee/0x170
[ 5580.474002][   T73]      __sys_sendmsg+0xcd/0x170
[ 5580.474002][   T73]      do_syscall_64+0xc6/0x1e0
[ 5580.474002][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5580.474002][   T73] 
[ 5580.475589][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5580.475589][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5580.475589][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5580.475589][   T73]      ipv6_find_idev+0x102/0x170
[ 5580.475589][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5580.475589][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5580.475589][   T73]      netlink_rcv_skb+0x130/0x360
[ 5580.475589][   T73]      netlink_unicast+0x449/0x710
[ 5580.475589][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5580.475589][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5580.475589][   T73]      ___sys_sendmsg+0xee/0x170
[ 5580.475589][   T73]      __sys_sendmsg+0xcd/0x170
[ 5580.475589][   T73]      do_syscall_64+0xc6/0x1e0
[ 5580.475589][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5580.475589][   T73] 
[ 5580.477333][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5580.477630][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5580.477630][   T73]      netdev_get_by_index+0x5e/0x80
[ 5580.477630][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5580.477630][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5580.477630][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5580.477630][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5580.477630][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5580.477630][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5580.477630][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5580.477630][   T73]      addrconf_dad_begin+0x310/0x670
[ 5580.477630][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5580.477630][   T73]      process_one_work+0x84d/0x18a0
[ 5580.477630][   T73]      worker_thread+0x587/0xd30
[ 5580.477630][   T73]      kthread+0x28a/0x350
[ 5580.477630][   T73]      ret_from_fork+0x31/0x70
[ 5580.477630][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5580.477630][   T73] 
[ 5580.479604][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5580.479604][   T73]      netdev_get_by_index+0x5e/0x80
[ 5580.479604][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5580.479604][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5580.479604][   T73]      ip6_route_add+0x1c/0x140
[ 5580.479604][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5580.479604][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5580.479604][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5580.479604][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5580.479604][   T73]      netlink_rcv_skb+0x130/0x360
[ 5580.479604][   T73]      netlink_unicast+0x449/0x710
[ 5580.479604][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5580.479604][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5580.479604][   T73]      ___sys_sendmsg+0xee/0x170
[ 5580.479604][   T73]      __sys_sendmsg+0xcd/0x170
[ 5580.479604][   T73]      do_syscall_64+0xc6/0x1e0
[ 5580.479604][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5580.479604][   T73] 
[ 5580.481668][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5580.481668][   T73]      netdev_get_by_index+0x5e/0x80
[ 5580.481668][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5580.481668][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5580.481668][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5580.481668][   T73]      ipv6_add_addr+0x411/0x2000
[ 5580.481668][   T73]      inet6_addr_add+0x30e/0xa40
[ 5580.481668][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5580.481668][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5580.481668][   T73]      netlink_rcv_skb+0x130/0x360
[ 5580.481668][   T73]      netlink_unicast+0x449/0x710
[ 5580.481668][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5580.481668][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5580.481668][   T73]      ___sys_sendmsg+0xee/0x170
[ 5580.481668][   T73]      __sys_sendmsg+0xcd/0x170
[ 5580.481668][   T73]      do_syscall_64+0xc6/0x1e0
[ 5580.481668][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5580.481668][   T73] 
[ 5580.483729][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5580.483729][   T73]      netdev_get_by_index+0x5e/0x80
[ 5580.483729][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5580.483729][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5580.483729][   T73]      ip6_route_add+0x1c/0x140
[ 5580.483729][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5580.483729][   T73]      addrconf_add_dev+0xe2/0x170
[ 5580.483729][   T73]      inet6_addr_add+0x12f/0xa40
[ 5580.483729][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5580.483729][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5580.483729][   T73]      netlink_rcv_skb+0x130/0x360
[ 5580.483729][   T73]      netlink_unicast+0x449/0x710
[ 5580.483729][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5580.483729][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5580.483729][   T73]      ___sys_sendmsg+0xee/0x170
[ 5580.483729][   T73]      __sys_sendmsg+0xcd/0x170
[ 5580.483729][   T73]      do_syscall_64+0xc6/0x1e0
[ 5580.483729][   T73] 
[ 5580.485751][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5580.485751][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5580.485751][   T73]      ipv6_find_idev+0x102/0x170
[ 5580.485751][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5580.485751][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5580.485751][   T73]      netlink_rcv_skb+0x130/0x360
[ 5580.485751][   T73]      netlink_unicast+0x449/0x710
[ 5580.485751][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5580.485751][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5580.485751][   T73]      ___sys_sendmsg+0xee/0x170
[ 5580.485751][   T73]      __sys_sendmsg+0xcd/0x170
[ 5580.485751][   T73]      do_syscall_64+0xc6/0x1e0
[ 5580.485751][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5580.485751][   T73] 
[ 5580.487338][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5580.487338][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5580.487338][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5580.487338][   T73]      ipv6_find_idev+0x102/0x170
[ 5580.487338][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5580.487338][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5580.487338][   T73]      netlink_rcv_skb+0x130/0x360
[ 5580.487338][   T73]      netlink_unicast+0x449/0x710
[ 5580.487338][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5580.487338][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5580.487338][   T73]      ___sys_sendmsg+0xee/0x170
[ 5580.487338][   T73]      __sys_sendmsg+0xcd/0x170
[ 5580.487338][   T73]      do_syscall_64+0xc6/0x1e0
[ 5580.487338][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5580.487338][   T73] 
[ 5580.489087][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5580.489381][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5580.489381][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5580.489381][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5580.489381][   T73]      fib6_nh_init+0xa22/0x1580
[ 5580.489381][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5580.489381][   T73]      ip6_route_add+0x1c/0x140
[ 5580.489381][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5580.489381][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5580.489381][   T73]      netlink_rcv_skb+0x130/0x360
[ 5580.489381][   T73]      netlink_unicast+0x449/0x710
[ 5580.489381][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5580.489381][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5580.489381][   T73]      ___sys_sendmsg+0xee/0x170
[ 5580.489381][   T73]      __sys_sendmsg+0xcd/0x170
[ 5580.489381][   T73]      do_syscall_64+0xc6/0x1e0
[ 5580.489381][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5580.489381][   T73] 
[ 5580.491468][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5580.491468][   T73]      dst_init+0x84/0x4a0
[ 5580.491468][   T73]      dst_alloc+0x97/0x150
[ 5580.491468][   T73]      ip6_dst_alloc+0x23/0x90
[ 5580.491468][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5580.491468][   T73]      ip6_pol_route+0x56f/0x840
[ 5580.491468][   T73]      fib6_rule_lookup+0x456/0x630
[ 5580.491468][   T73]      ip6_route_input+0x59c/0xa50
[ 5580.491468][   T73]      ipv6_rcv+0x397/0x810
[ 5580.491468][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5580.491468][   T73]      process_backlog+0x101/0x620
[ 5580.491468][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5580.491468][   T73]      net_rx_action+0x495/0xbe0
[ 5580.491468][   T73]      __do_softirq+0x1b5/0x7f6
[ 5580.491468][   T73] 
[ 5580.493210][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5580.493210][   T73]      netdev_get_by_index+0x5e/0x80
[ 5580.493210][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5580.493210][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5580.493210][   T73]      ip6_route_add+0x1c/0x140
[ 5580.493210][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5580.493210][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5580.493210][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5580.493210][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5580.493210][   T73]      netlink_rcv_skb+0x130/0x360
[ 5580.493210][   T73]      netlink_unicast+0x449/0x710
[ 5580.493210][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5580.493210][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5580.493210][   T73]      ___sys_sendmsg+0xee/0x170
[ 5580.493210][   T73]      __sys_sendmsg+0xcd/0x170
[ 5580.493210][   T73]      do_syscall_64+0xc6/0x1e0
[ 5580.493210][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5580.493210][   T73] 
[ 5580.495418][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5580.495418][   T73]      netdev_get_by_index+0x5e/0x80
[ 5580.495418][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5580.495418][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5580.495418][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5580.495418][   T73]      ipv6_add_addr+0x411/0x2000
[ 5580.495418][   T73]      inet6_addr_add+0x30e/0xa40
[ 5580.495418][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5580.495418][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5580.495418][   T73]      netlink_rcv_skb+0x130/0x360
[ 5580.495418][   T73]      netlink_unicast+0x449/0x710
[ 5580.495418][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5580.495418][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5580.495418][   T73]      ___sys_sendmsg+0xee/0x170
[ 5580.495418][   T73]      __sys_sendmsg+0xcd/0x170
[ 5580.495418][   T73]      do_syscall_64+0xc6/0x1e0
[ 5580.495418][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5580.495418][   T73] 
[ 5580.497618][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5580.497618][   T73]      netdev_get_by_index+0x5e/0x80
[ 5580.497618][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5580.497618][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5580.497618][   T73]      ip6_route_add+0x1c/0x140
[ 5580.497618][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5580.497618][   T73]      addrconf_add_dev+0xe2/0x170
[ 5580.497618][   T73]      inet6_addr_add+0x12f/0xa40
[ 5580.497618][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5580.497618][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5580.497618][   T73]      netlink_rcv_skb+0x130/0x360
[ 5580.497618][   T73]      netlink_unicast+0x449/0x710
[ 5580.497618][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5580.497618][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5580.497618][   T73]      ___sys_sendmsg+0xee/0x170
[ 5580.497618][   T73]      __sys_sendmsg+0xcd/0x170
[ 5580.497618][   T73]      do_syscall_64+0xc6/0x1e0
[ 5580.497618][   T73] 
[ 5580.499772][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5580.499772][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5580.499772][   T73]      ipv6_find_idev+0x102/0x170
[ 5580.499772][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5580.499772][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5580.499772][   T73]      netlink_rcv_skb+0x130/0x360
[ 5580.499772][   T73]      netlink_unicast+0x449/0x710
[ 5580.499772][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5580.499772][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5580.499772][   T73]      ___sys_sendmsg+0xee/0x170
[ 5580.499772][   T73]      __sys_sendmsg+0xcd/0x170
[ 5580.499772][   T73]      do_syscall_64+0xc6/0x1e0
[ 5580.499772][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5580.499772][   T73] 
[ 5580.501485][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5580.501485][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5580.501485][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5580.501485][   T73]      ipv6_find_idev+0x102/0x170
[ 5580.501485][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5580.501485][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5580.501485][   T73]      netlink_rcv_skb+0x130/0x360
[ 5580.501485][   T73]      netlink_unicast+0x449/0x710
[ 5580.501485][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5580.501485][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5580.501485][   T73]      ___sys_sendmsg+0xee/0x170
[ 5580.501485][   T73]      __sys_sendmsg+0xcd/0x170
[ 5580.501485][   T73]      do_syscall_64+0xc6/0x1e0
[ 5580.501485][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5580.501485][   T73] 
[ 5580.503353][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5580.503627][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5580.503627][   T73]      netdev_get_by_index+0x5e/0x80
[ 5580.503627][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5580.503627][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5580.503627][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5580.503627][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5580.503627][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5580.503627][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5580.503627][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5580.503627][   T73]      addrconf_dad_begin+0x310/0x670
[ 5580.503627][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5580.503627][   T73]      process_one_work+0x84d/0x18a0
[ 5580.503627][   T73]      worker_thread+0x587/0xd30
[ 5580.503627][   T73]      kthread+0x28a/0x350
[ 5580.503627][   T73]      ret_from_fork+0x31/0x70
[ 5580.503627][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5580.503627][   T73] 
[ 5580.505727][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5580.505727][   T73]      netdev_get_by_index+0x5e/0x80
[ 5580.505727][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5580.505727][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5580.505727][   T73]      ip6_route_add+0x1c/0x140
[ 5580.505727][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5580.505727][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5580.505727][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5580.505727][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5580.505727][   T73]      netlink_rcv_skb+0x130/0x360
[ 5580.505727][   T73]      netlink_unicast+0x449/0x710
[ 5580.505727][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5580.505727][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5580.505727][   T73]      ___sys_sendmsg+0xee/0x170
[ 5580.505727][   T73]      __sys_sendmsg+0xcd/0x170
[ 5580.505727][   T73]      do_syscall_64+0xc6/0x1e0
[ 5580.505727][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5580.505727][   T73] 
[ 5580.507917][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5580.507917][   T73]      netdev_get_by_index+0x5e/0x80
[ 5580.507917][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5580.507917][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5580.507917][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5580.507917][   T73]      ipv6_add_addr+0x411/0x2000
[ 5580.507917][   T73]      inet6_addr_add+0x30e/0xa40
[ 5580.507917][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5580.507917][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5580.507917][   T73]      netlink_rcv_skb+0x130/0x360
[ 5580.507917][   T73]      netlink_unicast+0x449/0x710
[ 5580.507917][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5580.507917][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5580.507917][   T73]      ___sys_sendmsg+0xee/0x170
[ 5580.507917][   T73]      __sys_sendmsg+0xcd/0x170
[ 5580.507917][   T73]      do_syscall_64+0xc6/0x1e0
[ 5580.507917][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5580.507917][   T73] 
[ 5580.510031][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5580.510031][   T73]      netdev_get_by_index+0x5e/0x80
[ 5580.510031][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5580.510031][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5580.510031][   T73]      ip6_route_add+0x1c/0x140
[ 5580.510031][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5580.510031][   T73]      addrconf_add_dev+0xe2/0x170
[ 5580.510031][   T73]      inet6_addr_add+0x12f/0xa40
[ 5580.510031][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5580.510031][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5580.510031][   T73]      netlink_rcv_skb+0x130/0x360
[ 5580.510031][   T73]      netlink_unicast+0x449/0x710
[ 5580.510031][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5580.510031][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5580.510031][   T73]      ___sys_sendmsg+0xee/0x170
[ 5580.510031][   T73]      __sys_sendmsg+0xcd/0x170
[ 5580.510031][   T73]      do_syscall_64+0xc6/0x1e0
[ 5580.510031][   T73] 
[ 5580.512174][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5580.512174][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5580.512174][   T73]      ipv6_find_idev+0x102/0x170
[ 5580.512174][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5580.512174][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5580.512174][   T73]      netlink_rcv_skb+0x130/0x360
[ 5580.512174][   T73]      netlink_unicast+0x449/0x710
[ 5580.512174][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5580.512174][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5580.512174][   T73]      ___sys_sendmsg+0xee/0x170
[ 5580.512174][   T73]      __sys_sendmsg+0xcd/0x170
[ 5580.512174][   T73]      do_syscall_64+0xc6/0x1e0
[ 5580.512174][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5580.512174][   T73] 
[ 5580.513885][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5580.513885][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5580.513885][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5580.513885][   T73]      ipv6_find_idev+0x102/0x170
[ 5580.513885][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5580.513885][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5580.513885][   T73]      netlink_rcv_skb+0x130/0x360
[ 5580.513885][   T73]      netlink_unicast+0x449/0x710
[ 5580.513885][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5580.513885][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5580.513885][   T73]      ___sys_sendmsg+0xee/0x170
[ 5580.513885][   T73]      __sys_sendmsg+0xcd/0x170
[ 5580.513885][   T73]      do_syscall_64+0xc6/0x1e0
[ 5580.513885][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5580.513885][   T73] 
[ 5590.751761][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5590.752237][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5590.752237][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5590.752237][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5590.752237][   T73]      fib6_nh_init+0xa22/0x1580
[ 5590.752237][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5590.752237][   T73]      ip6_route_add+0x1c/0x140
[ 5590.752237][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5590.752237][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5590.752237][   T73]      netlink_rcv_skb+0x130/0x360
[ 5590.752237][   T73]      netlink_unicast+0x449/0x710
[ 5590.752237][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5590.752237][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5590.752237][   T73]      ___sys_sendmsg+0xee/0x170
[ 5590.752237][   T73]      __sys_sendmsg+0xcd/0x170
[ 5590.752237][   T73]      do_syscall_64+0xc6/0x1e0
[ 5590.752237][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5590.752237][   T73] 
[ 5590.754150][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5590.754150][   T73]      dst_init+0x84/0x4a0
[ 5590.754150][   T73]      dst_alloc+0x97/0x150
[ 5590.754150][   T73]      ip6_dst_alloc+0x23/0x90
[ 5590.754150][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5590.754150][   T73]      ip6_pol_route+0x56f/0x840
[ 5590.754150][   T73]      fib6_rule_lookup+0x456/0x630
[ 5590.754150][   T73]      ip6_route_input+0x59c/0xa50
[ 5590.754150][   T73]      ipv6_rcv+0x397/0x810
[ 5590.754150][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5590.754150][   T73]      process_backlog+0x101/0x620
[ 5590.754150][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5590.754150][   T73]      net_rx_action+0x495/0xbe0
[ 5590.754150][   T73]      __do_softirq+0x1b5/0x7f6
[ 5590.754150][   T73] 
[ 5590.755810][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5590.755810][   T73]      netdev_get_by_index+0x5e/0x80
[ 5590.755810][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5590.755810][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5590.755810][   T73]      ip6_route_add+0x1c/0x140
[ 5590.755810][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5590.755810][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5590.755810][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5590.755810][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5590.755810][   T73]      netlink_rcv_skb+0x130/0x360
[ 5590.755810][   T73]      netlink_unicast+0x449/0x710
[ 5590.755810][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5590.755810][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5590.755810][   T73]      ___sys_sendmsg+0xee/0x170
[ 5590.755810][   T73]      __sys_sendmsg+0xcd/0x170
[ 5590.755810][   T73]      do_syscall_64+0xc6/0x1e0
[ 5590.755810][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5590.755810][   T73] 
[ 5590.757827][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5590.757827][   T73]      netdev_get_by_index+0x5e/0x80
[ 5590.757827][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5590.757827][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5590.757827][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5590.757827][   T73]      ipv6_add_addr+0x411/0x2000
[ 5590.757827][   T73]      inet6_addr_add+0x30e/0xa40
[ 5590.757827][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5590.757827][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5590.757827][   T73]      netlink_rcv_skb+0x130/0x360
[ 5590.757827][   T73]      netlink_unicast+0x449/0x710
[ 5590.757827][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5590.757827][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5590.757827][   T73]      ___sys_sendmsg+0xee/0x170
[ 5590.757827][   T73]      __sys_sendmsg+0xcd/0x170
[ 5590.757827][   T73]      do_syscall_64+0xc6/0x1e0
[ 5590.757827][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5590.757827][   T73] 
[ 5590.759889][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5590.759889][   T73]      netdev_get_by_index+0x5e/0x80
[ 5590.759889][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5590.759889][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5590.759889][   T73]      ip6_route_add+0x1c/0x140
[ 5590.759889][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5590.759889][   T73]      addrconf_add_dev+0xe2/0x170
[ 5590.759889][   T73]      inet6_addr_add+0x12f/0xa40
[ 5590.759889][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5590.759889][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5590.759889][   T73]      netlink_rcv_skb+0x130/0x360
[ 5590.759889][   T73]      netlink_unicast+0x449/0x710
[ 5590.759889][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5590.759889][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5590.759889][   T73]      ___sys_sendmsg+0xee/0x170
[ 5590.759889][   T73]      __sys_sendmsg+0xcd/0x170
[ 5590.759889][   T73]      do_syscall_64+0xc6/0x1e0
[ 5590.759889][   T73] 
[ 5590.761895][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5590.761895][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5590.761895][   T73]      ipv6_find_idev+0x102/0x170
[ 5590.761895][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5590.761895][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5590.761895][   T73]      netlink_rcv_skb+0x130/0x360
[ 5590.761895][   T73]      netlink_unicast+0x449/0x710
[ 5590.761895][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5590.761895][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5590.761895][   T73]      ___sys_sendmsg+0xee/0x170
[ 5590.761895][   T73]      __sys_sendmsg+0xcd/0x170
[ 5590.761895][   T73]      do_syscall_64+0xc6/0x1e0
[ 5590.761895][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5590.761895][   T73] 
[ 5590.763457][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5590.763457][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5590.763457][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5590.763457][   T73]      ipv6_find_idev+0x102/0x170
[ 5590.763457][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5590.763457][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5590.763457][   T73]      netlink_rcv_skb+0x130/0x360
[ 5590.763457][   T73]      netlink_unicast+0x449/0x710
[ 5590.763457][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5590.763457][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5590.763457][   T73]      ___sys_sendmsg+0xee/0x170
[ 5590.763457][   T73]      __sys_sendmsg+0xcd/0x170
[ 5590.763457][   T73]      do_syscall_64+0xc6/0x1e0
[ 5590.763457][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5590.763457][   T73] 
[ 5590.765175][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5590.765456][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5590.765456][   T73]      netdev_get_by_index+0x5e/0x80
[ 5590.765456][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5590.765456][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5590.765456][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5590.765456][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5590.765456][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5590.765456][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5590.765456][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5590.765456][   T73]      addrconf_dad_begin+0x310/0x670
[ 5590.765456][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5590.765456][   T73]      process_one_work+0x84d/0x18a0
[ 5590.765456][   T73]      worker_thread+0x587/0xd30
[ 5590.765456][   T73]      kthread+0x28a/0x350
[ 5590.765456][   T73]      ret_from_fork+0x31/0x70
[ 5590.765456][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5590.765456][   T73] 
[ 5590.767398][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5590.767398][   T73]      netdev_get_by_index+0x5e/0x80
[ 5590.767398][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5590.767398][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5590.767398][   T73]      ip6_route_add+0x1c/0x140
[ 5590.767398][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5590.767398][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5590.767398][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5590.767398][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5590.767398][   T73]      netlink_rcv_skb+0x130/0x360
[ 5590.767398][   T73]      netlink_unicast+0x449/0x710
[ 5590.767398][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5590.767398][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5590.767398][   T73]      ___sys_sendmsg+0xee/0x170
[ 5590.767398][   T73]      __sys_sendmsg+0xcd/0x170
[ 5590.767398][   T73]      do_syscall_64+0xc6/0x1e0
[ 5590.767398][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5590.767398][   T73] 
[ 5590.769423][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5590.769423][   T73]      netdev_get_by_index+0x5e/0x80
[ 5590.769423][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5590.769423][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5590.769423][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5590.769423][   T73]      ipv6_add_addr+0x411/0x2000
[ 5590.769423][   T73]      inet6_addr_add+0x30e/0xa40
[ 5590.769423][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5590.769423][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5590.769423][   T73]      netlink_rcv_skb+0x130/0x360
[ 5590.769423][   T73]      netlink_unicast+0x449/0x710
[ 5590.769423][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5590.769423][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5590.769423][   T73]      ___sys_sendmsg+0xee/0x170
[ 5590.769423][   T73]      __sys_sendmsg+0xcd/0x170
[ 5590.769423][   T73]      do_syscall_64+0xc6/0x1e0
[ 5590.769423][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5590.769423][   T73] 
[ 5590.771464][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5590.771464][   T73]      netdev_get_by_index+0x5e/0x80
[ 5590.771464][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5590.771464][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5590.771464][   T73]      ip6_route_add+0x1c/0x140
[ 5590.771464][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5590.771464][   T73]      addrconf_add_dev+0xe2/0x170
[ 5590.771464][   T73]      inet6_addr_add+0x12f/0xa40
[ 5590.771464][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5590.771464][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5590.771464][   T73]      netlink_rcv_skb+0x130/0x360
[ 5590.771464][   T73]      netlink_unicast+0x449/0x710
[ 5590.771464][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5590.771464][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5590.771464][   T73]      ___sys_sendmsg+0xee/0x170
[ 5590.771464][   T73]      __sys_sendmsg+0xcd/0x170
[ 5590.771464][   T73]      do_syscall_64+0xc6/0x1e0
[ 5590.771464][   T73] 
[ 5590.773450][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5590.773450][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5590.773450][   T73]      ipv6_find_idev+0x102/0x170
[ 5590.773450][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5590.773450][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5590.773450][   T73]      netlink_rcv_skb+0x130/0x360
[ 5590.773450][   T73]      netlink_unicast+0x449/0x710
[ 5590.773450][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5590.773450][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5590.773450][   T73]      ___sys_sendmsg+0xee/0x170
[ 5590.773450][   T73]      __sys_sendmsg+0xcd/0x170
[ 5590.773450][   T73]      do_syscall_64+0xc6/0x1e0
[ 5590.773450][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5590.773450][   T73] 
[ 5590.775010][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5590.775010][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5590.775010][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5590.775010][   T73]      ipv6_find_idev+0x102/0x170
[ 5590.775010][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5590.775010][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5590.775010][   T73]      netlink_rcv_skb+0x130/0x360
[ 5590.775010][   T73]      netlink_unicast+0x449/0x710
[ 5590.775010][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5590.775010][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5590.775010][   T73]      ___sys_sendmsg+0xee/0x170
[ 5590.775010][   T73]      __sys_sendmsg+0xcd/0x170
[ 5590.775010][   T73]      do_syscall_64+0xc6/0x1e0
[ 5590.775010][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5590.775010][   T73] 
[ 5590.776721][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5590.777001][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5590.777001][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5590.777001][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5590.777001][   T73]      fib6_nh_init+0xa22/0x1580
[ 5590.777001][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5590.777001][   T73]      ip6_route_add+0x1c/0x140
[ 5590.777001][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5590.777001][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5590.777001][   T73]      netlink_rcv_skb+0x130/0x360
[ 5590.777001][   T73]      netlink_unicast+0x449/0x710
[ 5590.777001][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5590.777001][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5590.777001][   T73]      ___sys_sendmsg+0xee/0x170
[ 5590.777001][   T73]      __sys_sendmsg+0xcd/0x170
[ 5590.777001][   T73]      do_syscall_64+0xc6/0x1e0
[ 5590.777001][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5590.777001][   T73] 
[ 5590.779108][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5590.779108][   T73]      dst_init+0x84/0x4a0
[ 5590.779108][   T73]      dst_alloc+0x97/0x150
[ 5590.779108][   T73]      ip6_dst_alloc+0x23/0x90
[ 5590.779108][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5590.779108][   T73]      ip6_pol_route+0x56f/0x840
[ 5590.779108][   T73]      fib6_rule_lookup+0x456/0x630
[ 5590.779108][   T73]      ip6_route_input+0x59c/0xa50
[ 5590.779108][   T73]      ipv6_rcv+0x397/0x810
[ 5590.779108][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5590.779108][   T73]      process_backlog+0x101/0x620
[ 5590.779108][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5590.779108][   T73]      net_rx_action+0x495/0xbe0
[ 5590.779108][   T73]      __do_softirq+0x1b5/0x7f6
[ 5590.779108][   T73] 
[ 5590.780950][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5590.780950][   T73]      netdev_get_by_index+0x5e/0x80
[ 5590.780950][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5590.780950][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5590.780950][   T73]      ip6_route_add+0x1c/0x140
[ 5590.780950][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5590.780950][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5590.780950][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5590.780950][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5590.780950][   T73]      netlink_rcv_skb+0x130/0x360
[ 5590.780950][   T73]      netlink_unicast+0x449/0x710
[ 5590.780950][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5590.780950][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5590.780950][   T73]      ___sys_sendmsg+0xee/0x170
[ 5590.780950][   T73]      __sys_sendmsg+0xcd/0x170
[ 5590.780950][   T73]      do_syscall_64+0xc6/0x1e0
[ 5590.780950][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5590.780950][   T73] 
[ 5590.783290][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5590.783290][   T73]      netdev_get_by_index+0x5e/0x80
[ 5590.783290][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5590.783290][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5590.783290][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5590.783290][   T73]      ipv6_add_addr+0x411/0x2000
[ 5590.783290][   T73]      inet6_addr_add+0x30e/0xa40
[ 5590.783290][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5590.783290][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5590.783290][   T73]      netlink_rcv_skb+0x130/0x360
[ 5590.783290][   T73]      netlink_unicast+0x449/0x710
[ 5590.783290][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5590.783290][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5590.783290][   T73]      ___sys_sendmsg+0xee/0x170
[ 5590.783290][   T73]      __sys_sendmsg+0xcd/0x170
[ 5590.783290][   T73]      do_syscall_64+0xc6/0x1e0
[ 5590.783290][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5590.783290][   T73] 
[ 5590.785574][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5590.785574][   T73]      netdev_get_by_index+0x5e/0x80
[ 5590.785574][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5590.785574][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5590.785574][   T73]      ip6_route_add+0x1c/0x140
[ 5590.785574][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5590.785574][   T73]      addrconf_add_dev+0xe2/0x170
[ 5590.785574][   T73]      inet6_addr_add+0x12f/0xa40
[ 5590.785574][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5590.785574][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5590.785574][   T73]      netlink_rcv_skb+0x130/0x360
[ 5590.785574][   T73]      netlink_unicast+0x449/0x710
[ 5590.785574][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5590.785574][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5590.785574][   T73]      ___sys_sendmsg+0xee/0x170
[ 5590.785574][   T73]      __sys_sendmsg+0xcd/0x170
[ 5590.785574][   T73]      do_syscall_64+0xc6/0x1e0
[ 5590.785574][   T73] 
[ 5590.787668][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5590.787668][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5590.787668][   T73]      ipv6_find_idev+0x102/0x170
[ 5590.787668][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5590.787668][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5590.787668][   T73]      netlink_rcv_skb+0x130/0x360
[ 5590.787668][   T73]      netlink_unicast+0x449/0x710
[ 5590.787668][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5590.787668][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5590.787668][   T73]      ___sys_sendmsg+0xee/0x170
[ 5590.787668][   T73]      __sys_sendmsg+0xcd/0x170
[ 5590.787668][   T73]      do_syscall_64+0xc6/0x1e0
[ 5590.787668][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5590.787668][   T73] 
[ 5590.789428][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5590.789428][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5590.789428][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5590.789428][   T73]      ipv6_find_idev+0x102/0x170
[ 5590.789428][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5590.789428][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5590.789428][   T73]      netlink_rcv_skb+0x130/0x360
[ 5590.789428][   T73]      netlink_unicast+0x449/0x710
[ 5590.789428][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5590.789428][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5590.789428][   T73]      ___sys_sendmsg+0xee/0x170
[ 5590.789428][   T73]      __sys_sendmsg+0xcd/0x170
[ 5590.789428][   T73]      do_syscall_64+0xc6/0x1e0
[ 5590.789428][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5590.789428][   T73] 
[ 5590.791376][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5590.791650][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5590.791650][   T73]      netdev_get_by_index+0x5e/0x80
[ 5590.791650][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5590.791650][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5590.791650][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5590.791650][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5590.791650][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5590.791650][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5590.791650][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5590.791650][   T73]      addrconf_dad_begin+0x310/0x670
[ 5590.791650][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5590.791650][   T73]      process_one_work+0x84d/0x18a0
[ 5590.791650][   T73]      worker_thread+0x587/0xd30
[ 5590.791650][   T73]      kthread+0x28a/0x350
[ 5590.791650][   T73]      ret_from_fork+0x31/0x70
[ 5590.791650][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5590.791650][   T73] 
[ 5590.793879][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5590.793879][   T73]      netdev_get_by_index+0x5e/0x80
[ 5590.793879][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5590.793879][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5590.793879][   T73]      ip6_route_add+0x1c/0x140
[ 5590.793879][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5590.793879][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5590.793879][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5590.793879][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5590.793879][   T73]      netlink_rcv_skb+0x130/0x360
[ 5590.793879][   T73]      netlink_unicast+0x449/0x710
[ 5590.793879][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5590.793879][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5590.793879][   T73]      ___sys_sendmsg+0xee/0x170
[ 5590.793879][   T73]      __sys_sendmsg+0xcd/0x170
[ 5590.793879][   T73]      do_syscall_64+0xc6/0x1e0
[ 5590.793879][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5590.793879][   T73] 
[ 5590.796165][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5590.796165][   T73]      netdev_get_by_index+0x5e/0x80
[ 5590.796165][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5590.796165][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5590.796165][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5590.796165][   T73]      ipv6_add_addr+0x411/0x2000
[ 5590.796165][   T73]      inet6_addr_add+0x30e/0xa40
[ 5590.796165][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5590.796165][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5590.796165][   T73]      netlink_rcv_skb+0x130/0x360
[ 5590.796165][   T73]      netlink_unicast+0x449/0x710
[ 5590.796165][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5590.796165][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5590.796165][   T73]      ___sys_sendmsg+0xee/0x170
[ 5590.796165][   T73]      __sys_sendmsg+0xcd/0x170
[ 5590.796165][   T73]      do_syscall_64+0xc6/0x1e0
[ 5590.796165][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5590.796165][   T73] 
[ 5590.798897][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5590.798897][   T73]      netdev_get_by_index+0x5e/0x80
[ 5590.798897][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5590.798897][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5590.798897][   T73]      ip6_route_add+0x1c/0x140
[ 5590.798897][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5590.798897][   T73]      addrconf_add_dev+0xe2/0x170
[ 5590.798897][   T73]      inet6_addr_add+0x12f/0xa40
[ 5590.798897][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5590.798897][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5590.798897][   T73]      netlink_rcv_skb+0x130/0x360
[ 5590.798897][   T73]      netlink_unicast+0x449/0x710
[ 5590.798897][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5590.798897][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5590.798897][   T73]      ___sys_sendmsg+0xee/0x170
[ 5590.798897][   T73]      __sys_sendmsg+0xcd/0x170
[ 5590.798897][   T73]      do_syscall_64+0xc6/0x1e0
[ 5590.798897][   T73] 
[ 5590.801123][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5590.801123][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5590.801123][   T73]      ipv6_find_idev+0x102/0x170
[ 5590.801123][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5590.801123][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5590.801123][   T73]      netlink_rcv_skb+0x130/0x360
[ 5590.801123][   T73]      netlink_unicast+0x449/0x710
[ 5590.801123][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5590.801123][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5590.801123][   T73]      ___sys_sendmsg+0xee/0x170
[ 5590.801123][   T73]      __sys_sendmsg+0xcd/0x170
[ 5590.801123][   T73]      do_syscall_64+0xc6/0x1e0
[ 5590.801123][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5590.801123][   T73] 
[ 5590.802946][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5590.802946][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5590.802946][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5590.802946][   T73]      ipv6_find_idev+0x102/0x170
[ 5590.802946][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5590.802946][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5590.802946][   T73]      netlink_rcv_skb+0x130/0x360
[ 5590.802946][   T73]      netlink_unicast+0x449/0x710
[ 5590.802946][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5590.802946][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5590.802946][   T73]      ___sys_sendmsg+0xee/0x170
[ 5590.802946][   T73]      __sys_sendmsg+0xcd/0x170
[ 5590.802946][   T73]      do_syscall_64+0xc6/0x1e0
[ 5590.802946][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5590.802946][   T73] 
[ 5601.047761][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5601.048257][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5601.048257][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5601.048257][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5601.048257][   T73]      fib6_nh_init+0xa22/0x1580
[ 5601.048257][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5601.048257][   T73]      ip6_route_add+0x1c/0x140
[ 5601.048257][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5601.048257][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5601.048257][   T73]      netlink_rcv_skb+0x130/0x360
[ 5601.048257][   T73]      netlink_unicast+0x449/0x710
[ 5601.048257][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5601.048257][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5601.048257][   T73]      ___sys_sendmsg+0xee/0x170
[ 5601.048257][   T73]      __sys_sendmsg+0xcd/0x170
[ 5601.048257][   T73]      do_syscall_64+0xc6/0x1e0
[ 5601.048257][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5601.048257][   T73] 
[ 5601.050267][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5601.050267][   T73]      dst_init+0x84/0x4a0
[ 5601.050267][   T73]      dst_alloc+0x97/0x150
[ 5601.050267][   T73]      ip6_dst_alloc+0x23/0x90
[ 5601.050267][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5601.050267][   T73]      ip6_pol_route+0x56f/0x840
[ 5601.050267][   T73]      fib6_rule_lookup+0x456/0x630
[ 5601.050267][   T73]      ip6_route_input+0x59c/0xa50
[ 5601.050267][   T73]      ipv6_rcv+0x397/0x810
[ 5601.050267][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5601.050267][   T73]      process_backlog+0x101/0x620
[ 5601.050267][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5601.050267][   T73]      net_rx_action+0x495/0xbe0
[ 5601.050267][   T73]      __do_softirq+0x1b5/0x7f6
[ 5601.050267][   T73] 
[ 5601.051904][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5601.051904][   T73]      netdev_get_by_index+0x5e/0x80
[ 5601.051904][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5601.051904][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5601.051904][   T73]      ip6_route_add+0x1c/0x140
[ 5601.051904][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5601.051904][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5601.051904][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5601.051904][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5601.051904][   T73]      netlink_rcv_skb+0x130/0x360
[ 5601.051904][   T73]      netlink_unicast+0x449/0x710
[ 5601.051904][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5601.051904][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5601.051904][   T73]      ___sys_sendmsg+0xee/0x170
[ 5601.051904][   T73]      __sys_sendmsg+0xcd/0x170
[ 5601.051904][   T73]      do_syscall_64+0xc6/0x1e0
[ 5601.051904][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5601.051904][   T73] 
[ 5601.053901][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5601.053901][   T73]      netdev_get_by_index+0x5e/0x80
[ 5601.053901][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5601.053901][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5601.053901][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5601.053901][   T73]      ipv6_add_addr+0x411/0x2000
[ 5601.053901][   T73]      inet6_addr_add+0x30e/0xa40
[ 5601.053901][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5601.053901][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5601.053901][   T73]      netlink_rcv_skb+0x130/0x360
[ 5601.053901][   T73]      netlink_unicast+0x449/0x710
[ 5601.053901][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5601.053901][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5601.053901][   T73]      ___sys_sendmsg+0xee/0x170
[ 5601.053901][   T73]      __sys_sendmsg+0xcd/0x170
[ 5601.053901][   T73]      do_syscall_64+0xc6/0x1e0
[ 5601.053901][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5601.053901][   T73] 
[ 5601.055905][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5601.055905][   T73]      netdev_get_by_index+0x5e/0x80
[ 5601.055905][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5601.055905][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5601.055905][   T73]      ip6_route_add+0x1c/0x140
[ 5601.055905][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5601.055905][   T73]      addrconf_add_dev+0xe2/0x170
[ 5601.055905][   T73]      inet6_addr_add+0x12f/0xa40
[ 5601.055905][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5601.055905][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5601.055905][   T73]      netlink_rcv_skb+0x130/0x360
[ 5601.055905][   T73]      netlink_unicast+0x449/0x710
[ 5601.055905][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5601.055905][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5601.055905][   T73]      ___sys_sendmsg+0xee/0x170
[ 5601.055905][   T73]      __sys_sendmsg+0xcd/0x170
[ 5601.055905][   T73]      do_syscall_64+0xc6/0x1e0
[ 5601.055905][   T73] 
[ 5601.057887][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5601.057887][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5601.057887][   T73]      ipv6_find_idev+0x102/0x170
[ 5601.057887][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5601.057887][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5601.057887][   T73]      netlink_rcv_skb+0x130/0x360
[ 5601.057887][   T73]      netlink_unicast+0x449/0x710
[ 5601.057887][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5601.057887][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5601.057887][   T73]      ___sys_sendmsg+0xee/0x170
[ 5601.057887][   T73]      __sys_sendmsg+0xcd/0x170
[ 5601.057887][   T73]      do_syscall_64+0xc6/0x1e0
[ 5601.057887][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5601.057887][   T73] 
[ 5601.059449][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5601.059449][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5601.059449][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5601.059449][   T73]      ipv6_find_idev+0x102/0x170
[ 5601.059449][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5601.059449][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5601.059449][   T73]      netlink_rcv_skb+0x130/0x360
[ 5601.059449][   T73]      netlink_unicast+0x449/0x710
[ 5601.059449][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5601.059449][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5601.059449][   T73]      ___sys_sendmsg+0xee/0x170
[ 5601.059449][   T73]      __sys_sendmsg+0xcd/0x170
[ 5601.059449][   T73]      do_syscall_64+0xc6/0x1e0
[ 5601.059449][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5601.059449][   T73] 
[ 5601.061238][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5601.061521][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5601.061521][   T73]      netdev_get_by_index+0x5e/0x80
[ 5601.061521][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5601.061521][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5601.061521][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5601.061521][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5601.061521][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5601.061521][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5601.061521][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5601.061521][   T73]      addrconf_dad_begin+0x310/0x670
[ 5601.061521][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5601.061521][   T73]      process_one_work+0x84d/0x18a0
[ 5601.061521][   T73]      worker_thread+0x587/0xd30
[ 5601.061521][   T73]      kthread+0x28a/0x350
[ 5601.061521][   T73]      ret_from_fork+0x31/0x70
[ 5601.061521][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5601.061521][   T73] 
[ 5601.063471][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5601.063471][   T73]      netdev_get_by_index+0x5e/0x80
[ 5601.063471][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5601.063471][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5601.063471][   T73]      ip6_route_add+0x1c/0x140
[ 5601.063471][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5601.063471][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5601.063471][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5601.063471][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5601.063471][   T73]      netlink_rcv_skb+0x130/0x360
[ 5601.063471][   T73]      netlink_unicast+0x449/0x710
[ 5601.063471][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5601.063471][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5601.063471][   T73]      ___sys_sendmsg+0xee/0x170
[ 5601.063471][   T73]      __sys_sendmsg+0xcd/0x170
[ 5601.063471][   T73]      do_syscall_64+0xc6/0x1e0
[ 5601.063471][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5601.063471][   T73] 
[ 5601.065496][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5601.065496][   T73]      netdev_get_by_index+0x5e/0x80
[ 5601.065496][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5601.065496][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5601.065496][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5601.065496][   T73]      ipv6_add_addr+0x411/0x2000
[ 5601.065496][   T73]      inet6_addr_add+0x30e/0xa40
[ 5601.065496][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5601.065496][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5601.065496][   T73]      netlink_rcv_skb+0x130/0x360
[ 5601.065496][   T73]      netlink_unicast+0x449/0x710
[ 5601.065496][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5601.065496][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5601.065496][   T73]      ___sys_sendmsg+0xee/0x170
[ 5601.065496][   T73]      __sys_sendmsg+0xcd/0x170
[ 5601.065496][   T73]      do_syscall_64+0xc6/0x1e0
[ 5601.065496][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5601.065496][   T73] 
[ 5601.067525][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5601.067525][   T73]      netdev_get_by_index+0x5e/0x80
[ 5601.067525][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5601.067525][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5601.067525][   T73]      ip6_route_add+0x1c/0x140
[ 5601.067525][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5601.067525][   T73]      addrconf_add_dev+0xe2/0x170
[ 5601.067525][   T73]      inet6_addr_add+0x12f/0xa40
[ 5601.067525][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5601.067525][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5601.067525][   T73]      netlink_rcv_skb+0x130/0x360
[ 5601.067525][   T73]      netlink_unicast+0x449/0x710
[ 5601.067525][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5601.067525][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5601.067525][   T73]      ___sys_sendmsg+0xee/0x170
[ 5601.067525][   T73]      __sys_sendmsg+0xcd/0x170
[ 5601.067525][   T73]      do_syscall_64+0xc6/0x1e0
[ 5601.067525][   T73] 
[ 5601.069501][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5601.069501][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5601.069501][   T73]      ipv6_find_idev+0x102/0x170
[ 5601.069501][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5601.069501][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5601.069501][   T73]      netlink_rcv_skb+0x130/0x360
[ 5601.069501][   T73]      netlink_unicast+0x449/0x710
[ 5601.069501][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5601.069501][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5601.069501][   T73]      ___sys_sendmsg+0xee/0x170
[ 5601.069501][   T73]      __sys_sendmsg+0xcd/0x170
[ 5601.069501][   T73]      do_syscall_64+0xc6/0x1e0
[ 5601.069501][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5601.069501][   T73] 
[ 5601.071047][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5601.071047][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5601.071047][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5601.071047][   T73]      ipv6_find_idev+0x102/0x170
[ 5601.071047][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5601.071047][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5601.071047][   T73]      netlink_rcv_skb+0x130/0x360
[ 5601.071047][   T73]      netlink_unicast+0x449/0x710
[ 5601.071047][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5601.071047][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5601.071047][   T73]      ___sys_sendmsg+0xee/0x170
[ 5601.071047][   T73]      __sys_sendmsg+0xcd/0x170
[ 5601.071047][   T73]      do_syscall_64+0xc6/0x1e0
[ 5601.071047][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5601.071047][   T73] 
[ 5601.072758][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5601.073026][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5601.073026][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5601.073026][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5601.073026][   T73]      fib6_nh_init+0xa22/0x1580
[ 5601.073026][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5601.073026][   T73]      ip6_route_add+0x1c/0x140
[ 5601.073026][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5601.073026][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5601.073026][   T73]      netlink_rcv_skb+0x130/0x360
[ 5601.073026][   T73]      netlink_unicast+0x449/0x710
[ 5601.073026][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5601.073026][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5601.073026][   T73]      ___sys_sendmsg+0xee/0x170
[ 5601.073026][   T73]      __sys_sendmsg+0xcd/0x170
[ 5601.073026][   T73]      do_syscall_64+0xc6/0x1e0
[ 5601.073026][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5601.073026][   T73] 
[ 5601.075109][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5601.075109][   T73]      dst_init+0x84/0x4a0
[ 5601.075109][   T73]      dst_alloc+0x97/0x150
[ 5601.075109][   T73]      ip6_dst_alloc+0x23/0x90
[ 5601.075109][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5601.075109][   T73]      ip6_pol_route+0x56f/0x840
[ 5601.075109][   T73]      fib6_rule_lookup+0x456/0x630
[ 5601.075109][   T73]      ip6_route_input+0x59c/0xa50
[ 5601.075109][   T73]      ipv6_rcv+0x397/0x810
[ 5601.075109][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5601.075109][   T73]      process_backlog+0x101/0x620
[ 5601.075109][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5601.075109][   T73]      net_rx_action+0x495/0xbe0
[ 5601.075109][   T73]      __do_softirq+0x1b5/0x7f6
[ 5601.075109][   T73] 
[ 5601.076953][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5601.076953][   T73]      netdev_get_by_index+0x5e/0x80
[ 5601.076953][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5601.076953][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5601.076953][   T73]      ip6_route_add+0x1c/0x140
[ 5601.076953][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5601.076953][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5601.076953][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5601.076953][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5601.076953][   T73]      netlink_rcv_skb+0x130/0x360
[ 5601.076953][   T73]      netlink_unicast+0x449/0x710
[ 5601.076953][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5601.076953][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5601.076953][   T73]      ___sys_sendmsg+0xee/0x170
[ 5601.076953][   T73]      __sys_sendmsg+0xcd/0x170
[ 5601.076953][   T73]      do_syscall_64+0xc6/0x1e0
[ 5601.076953][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5601.076953][   T73] 
[ 5601.079208][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5601.079208][   T73]      netdev_get_by_index+0x5e/0x80
[ 5601.079208][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5601.079208][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5601.079208][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5601.079208][   T73]      ipv6_add_addr+0x411/0x2000
[ 5601.079208][   T73]      inet6_addr_add+0x30e/0xa40
[ 5601.079208][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5601.079208][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5601.079208][   T73]      netlink_rcv_skb+0x130/0x360
[ 5601.079208][   T73]      netlink_unicast+0x449/0x710
[ 5601.079208][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5601.079208][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5601.079208][   T73]      ___sys_sendmsg+0xee/0x170
[ 5601.079208][   T73]      __sys_sendmsg+0xcd/0x170
[ 5601.079208][   T73]      do_syscall_64+0xc6/0x1e0
[ 5601.079208][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5601.079208][   T73] 
[ 5601.081456][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5601.081456][   T73]      netdev_get_by_index+0x5e/0x80
[ 5601.081456][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5601.081456][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5601.081456][   T73]      ip6_route_add+0x1c/0x140
[ 5601.081456][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5601.081456][   T73]      addrconf_add_dev+0xe2/0x170
[ 5601.081456][   T73]      inet6_addr_add+0x12f/0xa40
[ 5601.081456][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5601.081456][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5601.081456][   T73]      netlink_rcv_skb+0x130/0x360
[ 5601.081456][   T73]      netlink_unicast+0x449/0x710
[ 5601.081456][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5601.081456][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5601.081456][   T73]      ___sys_sendmsg+0xee/0x170
[ 5601.081456][   T73]      __sys_sendmsg+0xcd/0x170
[ 5601.081456][   T73]      do_syscall_64+0xc6/0x1e0
[ 5601.081456][   T73] 
[ 5601.083598][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5601.083598][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5601.083598][   T73]      ipv6_find_idev+0x102/0x170
[ 5601.083598][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5601.083598][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5601.083598][   T73]      netlink_rcv_skb+0x130/0x360
[ 5601.083598][   T73]      netlink_unicast+0x449/0x710
[ 5601.083598][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5601.083598][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5601.083598][   T73]      ___sys_sendmsg+0xee/0x170
[ 5601.083598][   T73]      __sys_sendmsg+0xcd/0x170
[ 5601.083598][   T73]      do_syscall_64+0xc6/0x1e0
[ 5601.083598][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5601.083598][   T73] 
[ 5601.085377][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5601.085377][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5601.085377][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5601.085377][   T73]      ipv6_find_idev+0x102/0x170
[ 5601.085377][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5601.085377][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5601.085377][   T73]      netlink_rcv_skb+0x130/0x360
[ 5601.085377][   T73]      netlink_unicast+0x449/0x710
[ 5601.085377][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5601.085377][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5601.085377][   T73]      ___sys_sendmsg+0xee/0x170
[ 5601.085377][   T73]      __sys_sendmsg+0xcd/0x170
[ 5601.085377][   T73]      do_syscall_64+0xc6/0x1e0
[ 5601.085377][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5601.085377][   T73] 
[ 5601.087298][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5601.087574][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5601.087574][   T73]      netdev_get_by_index+0x5e/0x80
[ 5601.087574][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5601.087574][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5601.087574][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5601.087574][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5601.087574][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5601.087574][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5601.087574][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5601.087574][   T73]      addrconf_dad_begin+0x310/0x670
[ 5601.087574][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5601.087574][   T73]      process_one_work+0x84d/0x18a0
[ 5601.087574][   T73]      worker_thread+0x587/0xd30
[ 5601.087574][   T73]      kthread+0x28a/0x350
[ 5601.087574][   T73]      ret_from_fork+0x31/0x70
[ 5601.087574][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5601.087574][   T73] 
[ 5601.089742][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5601.089742][   T73]      netdev_get_by_index+0x5e/0x80
[ 5601.089742][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5601.089742][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5601.089742][   T73]      ip6_route_add+0x1c/0x140
[ 5601.089742][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5601.089742][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5601.089742][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5601.089742][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5601.089742][   T73]      netlink_rcv_skb+0x130/0x360
[ 5601.089742][   T73]      netlink_unicast+0x449/0x710
[ 5601.089742][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5601.089742][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5601.089742][   T73]      ___sys_sendmsg+0xee/0x170
[ 5601.089742][   T73]      __sys_sendmsg+0xcd/0x170
[ 5601.089742][   T73]      do_syscall_64+0xc6/0x1e0
[ 5601.089742][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5601.089742][   T73] 
[ 5601.092461][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5601.092461][   T73]      netdev_get_by_index+0x5e/0x80
[ 5601.092461][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5601.092461][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5601.092461][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5601.092461][   T73]      ipv6_add_addr+0x411/0x2000
[ 5601.092461][   T73]      inet6_addr_add+0x30e/0xa40
[ 5601.092461][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5601.092461][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5601.092461][   T73]      netlink_rcv_skb+0x130/0x360
[ 5601.092461][   T73]      netlink_unicast+0x449/0x710
[ 5601.092461][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5601.092461][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5601.092461][   T73]      ___sys_sendmsg+0xee/0x170
[ 5601.092461][   T73]      __sys_sendmsg+0xcd/0x170
[ 5601.092461][   T73]      do_syscall_64+0xc6/0x1e0
[ 5601.092461][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5601.092461][   T73] 
[ 5601.097592][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5601.097592][   T73]      netdev_get_by_index+0x5e/0x80
[ 5601.097592][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5601.097592][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5601.097592][   T73]      ip6_route_add+0x1c/0x140
[ 5601.097592][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5601.097592][   T73]      addrconf_add_dev+0xe2/0x170
[ 5601.097592][   T73]      inet6_addr_add+0x12f/0xa40
[ 5601.097592][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5601.097592][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5601.097592][   T73]      netlink_rcv_skb+0x130/0x360
[ 5601.097592][   T73]      netlink_unicast+0x449/0x710
[ 5601.097592][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5601.097592][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5601.097592][   T73]      ___sys_sendmsg+0xee/0x170
[ 5601.097592][   T73]      __sys_sendmsg+0xcd/0x170
[ 5601.097592][   T73]      do_syscall_64+0xc6/0x1e0
[ 5601.097592][   T73] 
[ 5601.099833][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5601.099833][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5601.099833][   T73]      ipv6_find_idev+0x102/0x170
[ 5601.099833][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5601.099833][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5601.099833][   T73]      netlink_rcv_skb+0x130/0x360
[ 5601.099833][   T73]      netlink_unicast+0x449/0x710
[ 5601.099833][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5601.099833][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5601.099833][   T73]      ___sys_sendmsg+0xee/0x170
[ 5601.099833][   T73]      __sys_sendmsg+0xcd/0x170
[ 5601.099833][   T73]      do_syscall_64+0xc6/0x1e0
[ 5601.099833][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5601.099833][   T73] 
[ 5601.101566][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5601.101566][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5601.101566][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5601.101566][   T73]      ipv6_find_idev+0x102/0x170
[ 5601.101566][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5601.101566][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5601.101566][   T73]      netlink_rcv_skb+0x130/0x360
[ 5601.101566][   T73]      netlink_unicast+0x449/0x710
[ 5601.101566][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5601.101566][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5601.101566][   T73]      ___sys_sendmsg+0xee/0x170
[ 5601.101566][   T73]      __sys_sendmsg+0xcd/0x170
[ 5601.101566][   T73]      do_syscall_64+0xc6/0x1e0
[ 5601.101566][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5601.101566][   T73] 
[ 5611.343759][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5611.344237][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5611.344237][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5611.344237][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5611.344237][   T73]      fib6_nh_init+0xa22/0x1580
[ 5611.344237][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5611.344237][   T73]      ip6_route_add+0x1c/0x140
[ 5611.344237][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5611.344237][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5611.344237][   T73]      netlink_rcv_skb+0x130/0x360
[ 5611.344237][   T73]      netlink_unicast+0x449/0x710
[ 5611.344237][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5611.344237][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5611.344237][   T73]      ___sys_sendmsg+0xee/0x170
[ 5611.344237][   T73]      __sys_sendmsg+0xcd/0x170
[ 5611.344237][   T73]      do_syscall_64+0xc6/0x1e0
[ 5611.344237][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5611.344237][   T73] 
[ 5611.346156][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5611.346156][   T73]      dst_init+0x84/0x4a0
[ 5611.346156][   T73]      dst_alloc+0x97/0x150
[ 5611.346156][   T73]      ip6_dst_alloc+0x23/0x90
[ 5611.346156][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5611.346156][   T73]      ip6_pol_route+0x56f/0x840
[ 5611.346156][   T73]      fib6_rule_lookup+0x456/0x630
[ 5611.346156][   T73]      ip6_route_input+0x59c/0xa50
[ 5611.346156][   T73]      ipv6_rcv+0x397/0x810
[ 5611.346156][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5611.346156][   T73]      process_backlog+0x101/0x620
[ 5611.346156][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5611.346156][   T73]      net_rx_action+0x495/0xbe0
[ 5611.346156][   T73]      __do_softirq+0x1b5/0x7f6
[ 5611.346156][   T73] 
[ 5611.347819][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5611.347819][   T73]      netdev_get_by_index+0x5e/0x80
[ 5611.347819][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5611.347819][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5611.347819][   T73]      ip6_route_add+0x1c/0x140
[ 5611.347819][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5611.347819][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5611.347819][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5611.347819][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5611.347819][   T73]      netlink_rcv_skb+0x130/0x360
[ 5611.347819][   T73]      netlink_unicast+0x449/0x710
[ 5611.347819][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5611.347819][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5611.347819][   T73]      ___sys_sendmsg+0xee/0x170
[ 5611.347819][   T73]      __sys_sendmsg+0xcd/0x170
[ 5611.347819][   T73]      do_syscall_64+0xc6/0x1e0
[ 5611.347819][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5611.347819][   T73] 
[ 5611.349925][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5611.349925][   T73]      netdev_get_by_index+0x5e/0x80
[ 5611.349925][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5611.349925][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5611.349925][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5611.349925][   T73]      ipv6_add_addr+0x411/0x2000
[ 5611.349925][   T73]      inet6_addr_add+0x30e/0xa40
[ 5611.349925][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5611.349925][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5611.349925][   T73]      netlink_rcv_skb+0x130/0x360
[ 5611.349925][   T73]      netlink_unicast+0x449/0x710
[ 5611.349925][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5611.349925][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5611.349925][   T73]      ___sys_sendmsg+0xee/0x170
[ 5611.349925][   T73]      __sys_sendmsg+0xcd/0x170
[ 5611.349925][   T73]      do_syscall_64+0xc6/0x1e0
[ 5611.349925][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5611.349925][   T73] 
[ 5611.351928][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5611.351928][   T73]      netdev_get_by_index+0x5e/0x80
[ 5611.351928][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5611.351928][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5611.351928][   T73]      ip6_route_add+0x1c/0x140
[ 5611.351928][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5611.351928][   T73]      addrconf_add_dev+0xe2/0x170
[ 5611.351928][   T73]      inet6_addr_add+0x12f/0xa40
[ 5611.351928][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5611.351928][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5611.351928][   T73]      netlink_rcv_skb+0x130/0x360
[ 5611.351928][   T73]      netlink_unicast+0x449/0x710
[ 5611.351928][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5611.351928][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5611.351928][   T73]      ___sys_sendmsg+0xee/0x170
[ 5611.351928][   T73]      __sys_sendmsg+0xcd/0x170
[ 5611.351928][   T73]      do_syscall_64+0xc6/0x1e0
[ 5611.351928][   T73] 
[ 5611.353909][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5611.353909][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5611.353909][   T73]      ipv6_find_idev+0x102/0x170
[ 5611.353909][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5611.353909][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5611.353909][   T73]      netlink_rcv_skb+0x130/0x360
[ 5611.353909][   T73]      netlink_unicast+0x449/0x710
[ 5611.353909][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5611.353909][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5611.353909][   T73]      ___sys_sendmsg+0xee/0x170
[ 5611.353909][   T73]      __sys_sendmsg+0xcd/0x170
[ 5611.353909][   T73]      do_syscall_64+0xc6/0x1e0
[ 5611.353909][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5611.353909][   T73] 
[ 5611.355456][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5611.355456][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5611.355456][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5611.355456][   T73]      ipv6_find_idev+0x102/0x170
[ 5611.355456][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5611.355456][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5611.355456][   T73]      netlink_rcv_skb+0x130/0x360
[ 5611.355456][   T73]      netlink_unicast+0x449/0x710
[ 5611.355456][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5611.355456][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5611.355456][   T73]      ___sys_sendmsg+0xee/0x170
[ 5611.355456][   T73]      __sys_sendmsg+0xcd/0x170
[ 5611.355456][   T73]      do_syscall_64+0xc6/0x1e0
[ 5611.355456][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5611.355456][   T73] 
[ 5611.357150][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5611.357425][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5611.357425][   T73]      netdev_get_by_index+0x5e/0x80
[ 5611.357425][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5611.357425][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5611.357425][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5611.357425][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5611.357425][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5611.357425][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5611.357425][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5611.357425][   T73]      addrconf_dad_begin+0x310/0x670
[ 5611.357425][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5611.357425][   T73]      process_one_work+0x84d/0x18a0
[ 5611.357425][   T73]      worker_thread+0x587/0xd30
[ 5611.357425][   T73]      kthread+0x28a/0x350
[ 5611.357425][   T73]      ret_from_fork+0x31/0x70
[ 5611.357425][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5611.357425][   T73] 
[ 5611.359359][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5611.359359][   T73]      netdev_get_by_index+0x5e/0x80
[ 5611.359359][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5611.359359][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5611.359359][   T73]      ip6_route_add+0x1c/0x140
[ 5611.359359][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5611.359359][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5611.359359][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5611.359359][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5611.359359][   T73]      netlink_rcv_skb+0x130/0x360
[ 5611.359359][   T73]      netlink_unicast+0x449/0x710
[ 5611.359359][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5611.359359][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5611.359359][   T73]      ___sys_sendmsg+0xee/0x170
[ 5611.359359][   T73]      __sys_sendmsg+0xcd/0x170
[ 5611.359359][   T73]      do_syscall_64+0xc6/0x1e0
[ 5611.359359][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5611.359359][   T73] 
[ 5611.361365][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5611.361365][   T73]      netdev_get_by_index+0x5e/0x80
[ 5611.361365][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5611.361365][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5611.361365][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5611.361365][   T73]      ipv6_add_addr+0x411/0x2000
[ 5611.361365][   T73]      inet6_addr_add+0x30e/0xa40
[ 5611.361365][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5611.361365][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5611.361365][   T73]      netlink_rcv_skb+0x130/0x360
[ 5611.361365][   T73]      netlink_unicast+0x449/0x710
[ 5611.361365][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5611.361365][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5611.361365][   T73]      ___sys_sendmsg+0xee/0x170
[ 5611.361365][   T73]      __sys_sendmsg+0xcd/0x170
[ 5611.361365][   T73]      do_syscall_64+0xc6/0x1e0
[ 5611.361365][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5611.361365][   T73] 
[ 5611.363368][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5611.363368][   T73]      netdev_get_by_index+0x5e/0x80
[ 5611.363368][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5611.363368][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5611.363368][   T73]      ip6_route_add+0x1c/0x140
[ 5611.363368][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5611.363368][   T73]      addrconf_add_dev+0xe2/0x170
[ 5611.363368][   T73]      inet6_addr_add+0x12f/0xa40
[ 5611.363368][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5611.363368][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5611.363368][   T73]      netlink_rcv_skb+0x130/0x360
[ 5611.363368][   T73]      netlink_unicast+0x449/0x710
[ 5611.363368][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5611.363368][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5611.363368][   T73]      ___sys_sendmsg+0xee/0x170
[ 5611.363368][   T73]      __sys_sendmsg+0xcd/0x170
[ 5611.363368][   T73]      do_syscall_64+0xc6/0x1e0
[ 5611.363368][   T73] 
[ 5611.428706][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5611.428706][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5611.428706][   T73]      ipv6_find_idev+0x102/0x170
[ 5611.428706][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5611.428706][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5611.428706][   T73]      netlink_rcv_skb+0x130/0x360
[ 5611.428706][   T73]      netlink_unicast+0x449/0x710
[ 5611.428706][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5611.428706][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5611.428706][   T73]      ___sys_sendmsg+0xee/0x170
[ 5611.428706][   T73]      __sys_sendmsg+0xcd/0x170
[ 5611.428706][   T73]      do_syscall_64+0xc6/0x1e0
[ 5611.428706][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5611.428706][   T73] 
[ 5611.430253][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5611.430253][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5611.430253][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5611.430253][   T73]      ipv6_find_idev+0x102/0x170
[ 5611.430253][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5611.430253][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5611.430253][   T73]      netlink_rcv_skb+0x130/0x360
[ 5611.430253][   T73]      netlink_unicast+0x449/0x710
[ 5611.430253][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5611.430253][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5611.430253][   T73]      ___sys_sendmsg+0xee/0x170
[ 5611.430253][   T73]      __sys_sendmsg+0xcd/0x170
[ 5611.430253][   T73]      do_syscall_64+0xc6/0x1e0
[ 5611.430253][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5611.430253][   T73] 
[ 5611.431957][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5611.432228][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5611.432228][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5611.432228][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5611.432228][   T73]      fib6_nh_init+0xa22/0x1580
[ 5611.432228][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5611.432228][   T73]      ip6_route_add+0x1c/0x140
[ 5611.432228][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5611.432228][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5611.432228][   T73]      netlink_rcv_skb+0x130/0x360
[ 5611.432228][   T73]      netlink_unicast+0x449/0x710
[ 5611.432228][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5611.432228][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5611.432228][   T73]      ___sys_sendmsg+0xee/0x170
[ 5611.432228][   T73]      __sys_sendmsg+0xcd/0x170
[ 5611.432228][   T73]      do_syscall_64+0xc6/0x1e0
[ 5611.432228][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5611.432228][   T73] 
[ 5611.434394][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5611.434394][   T73]      dst_init+0x84/0x4a0
[ 5611.434394][   T73]      dst_alloc+0x97/0x150
[ 5611.434394][   T73]      ip6_dst_alloc+0x23/0x90
[ 5611.434394][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5611.434394][   T73]      ip6_pol_route+0x56f/0x840
[ 5611.434394][   T73]      fib6_rule_lookup+0x456/0x630
[ 5611.434394][   T73]      ip6_route_input+0x59c/0xa50
[ 5611.434394][   T73]      ipv6_rcv+0x397/0x810
[ 5611.434394][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5611.434394][   T73]      process_backlog+0x101/0x620
[ 5611.434394][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5611.434394][   T73]      net_rx_action+0x495/0xbe0
[ 5611.434394][   T73]      __do_softirq+0x1b5/0x7f6
[ 5611.434394][   T73] 
[ 5611.436225][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5611.436225][   T73]      netdev_get_by_index+0x5e/0x80
[ 5611.436225][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5611.436225][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5611.436225][   T73]      ip6_route_add+0x1c/0x140
[ 5611.436225][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5611.436225][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5611.436225][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5611.436225][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5611.436225][   T73]      netlink_rcv_skb+0x130/0x360
[ 5611.436225][   T73]      netlink_unicast+0x449/0x710
[ 5611.436225][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5611.436225][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5611.436225][   T73]      ___sys_sendmsg+0xee/0x170
[ 5611.436225][   T73]      __sys_sendmsg+0xcd/0x170
[ 5611.436225][   T73]      do_syscall_64+0xc6/0x1e0
[ 5611.436225][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5611.436225][   T73] 
[ 5611.438488][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5611.438488][   T73]      netdev_get_by_index+0x5e/0x80
[ 5611.438488][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5611.438488][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5611.438488][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5611.438488][   T73]      ipv6_add_addr+0x411/0x2000
[ 5611.438488][   T73]      inet6_addr_add+0x30e/0xa40
[ 5611.438488][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5611.438488][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5611.438488][   T73]      netlink_rcv_skb+0x130/0x360
[ 5611.438488][   T73]      netlink_unicast+0x449/0x710
[ 5611.438488][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5611.438488][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5611.438488][   T73]      ___sys_sendmsg+0xee/0x170
[ 5611.438488][   T73]      __sys_sendmsg+0xcd/0x170
[ 5611.438488][   T73]      do_syscall_64+0xc6/0x1e0
[ 5611.438488][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5611.438488][   T73] 
[ 5611.440806][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5611.440806][   T73]      netdev_get_by_index+0x5e/0x80
[ 5611.440806][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5611.440806][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5611.440806][   T73]      ip6_route_add+0x1c/0x140
[ 5611.440806][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5611.440806][   T73]      addrconf_add_dev+0xe2/0x170
[ 5611.440806][   T73]      inet6_addr_add+0x12f/0xa40
[ 5611.440806][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5611.440806][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5611.440806][   T73]      netlink_rcv_skb+0x130/0x360
[ 5611.440806][   T73]      netlink_unicast+0x449/0x710
[ 5611.440806][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5611.440806][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5611.440806][   T73]      ___sys_sendmsg+0xee/0x170
[ 5611.440806][   T73]      __sys_sendmsg+0xcd/0x170
[ 5611.440806][   T73]      do_syscall_64+0xc6/0x1e0
[ 5611.440806][   T73] 
[ 5611.442969][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5611.442969][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5611.442969][   T73]      ipv6_find_idev+0x102/0x170
[ 5611.442969][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5611.442969][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5611.442969][   T73]      netlink_rcv_skb+0x130/0x360
[ 5611.442969][   T73]      netlink_unicast+0x449/0x710
[ 5611.442969][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5611.442969][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5611.442969][   T73]      ___sys_sendmsg+0xee/0x170
[ 5611.442969][   T73]      __sys_sendmsg+0xcd/0x170
[ 5611.442969][   T73]      do_syscall_64+0xc6/0x1e0
[ 5611.442969][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5611.442969][   T73] 
[ 5611.444696][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5611.444696][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5611.444696][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5611.444696][   T73]      ipv6_find_idev+0x102/0x170
[ 5611.444696][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5611.444696][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5611.444696][   T73]      netlink_rcv_skb+0x130/0x360
[ 5611.444696][   T73]      netlink_unicast+0x449/0x710
[ 5611.444696][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5611.444696][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5611.444696][   T73]      ___sys_sendmsg+0xee/0x170
[ 5611.444696][   T73]      __sys_sendmsg+0xcd/0x170
[ 5611.444696][   T73]      do_syscall_64+0xc6/0x1e0
[ 5611.444696][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5611.444696][   T73] 
[ 5611.446625][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5611.447347][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5611.447347][   T73]      netdev_get_by_index+0x5e/0x80
[ 5611.447347][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5611.447347][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5611.447347][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5611.447347][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5611.447347][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5611.447347][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5611.447347][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5611.447347][   T73]      addrconf_dad_begin+0x310/0x670
[ 5611.447347][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5611.447347][   T73]      process_one_work+0x84d/0x18a0
[ 5611.447347][   T73]      worker_thread+0x587/0xd30
[ 5611.447347][   T73]      kthread+0x28a/0x350
[ 5611.447347][   T73]      ret_from_fork+0x31/0x70
[ 5611.447347][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5611.447347][   T73] 
[ 5611.449260][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5611.449260][   T73]      netdev_get_by_index+0x5e/0x80
[ 5611.449260][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5611.449260][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5611.449260][   T73]      ip6_route_add+0x1c/0x140
[ 5611.449260][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5611.449260][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5611.449260][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5611.449260][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5611.449260][   T73]      netlink_rcv_skb+0x130/0x360
[ 5611.449260][   T73]      netlink_unicast+0x449/0x710
[ 5611.449260][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5611.449260][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5611.449260][   T73]      ___sys_sendmsg+0xee/0x170
[ 5611.449260][   T73]      __sys_sendmsg+0xcd/0x170
[ 5611.449260][   T73]      do_syscall_64+0xc6/0x1e0
[ 5611.449260][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5611.449260][   T73] 
[ 5611.451380][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5611.451380][   T73]      netdev_get_by_index+0x5e/0x80
[ 5611.451380][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5611.451380][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5611.451380][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5611.451380][   T73]      ipv6_add_addr+0x411/0x2000
[ 5611.451380][   T73]      inet6_addr_add+0x30e/0xa40
[ 5611.451380][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5611.451380][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5611.451380][   T73]      netlink_rcv_skb+0x130/0x360
[ 5611.451380][   T73]      netlink_unicast+0x449/0x710
[ 5611.451380][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5611.451380][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5611.451380][   T73]      ___sys_sendmsg+0xee/0x170
[ 5611.451380][   T73]      __sys_sendmsg+0xcd/0x170
[ 5611.451380][   T73]      do_syscall_64+0xc6/0x1e0
[ 5611.451380][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5611.451380][   T73] 
[ 5611.453650][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5611.453650][   T73]      netdev_get_by_index+0x5e/0x80
[ 5611.453650][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5611.453650][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5611.453650][   T73]      ip6_route_add+0x1c/0x140
[ 5611.453650][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5611.453650][   T73]      addrconf_add_dev+0xe2/0x170
[ 5611.453650][   T73]      inet6_addr_add+0x12f/0xa40
[ 5611.453650][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5611.453650][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5611.453650][   T73]      netlink_rcv_skb+0x130/0x360
[ 5611.453650][   T73]      netlink_unicast+0x449/0x710
[ 5611.453650][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5611.453650][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5611.453650][   T73]      ___sys_sendmsg+0xee/0x170
[ 5611.453650][   T73]      __sys_sendmsg+0xcd/0x170
[ 5611.453650][   T73]      do_syscall_64+0xc6/0x1e0
[ 5611.453650][   T73] 
[ 5611.455867][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5611.455867][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5611.455867][   T73]      ipv6_find_idev+0x102/0x170
[ 5611.455867][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5611.455867][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5611.455867][   T73]      netlink_rcv_skb+0x130/0x360
[ 5611.455867][   T73]      netlink_unicast+0x449/0x710
[ 5611.455867][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5611.455867][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5611.455867][   T73]      ___sys_sendmsg+0xee/0x170
[ 5611.455867][   T73]      __sys_sendmsg+0xcd/0x170
[ 5611.455867][   T73]      do_syscall_64+0xc6/0x1e0
[ 5611.455867][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5611.455867][   T73] 
[ 5611.457596][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5611.457596][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5611.457596][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5611.457596][   T73]      ipv6_find_idev+0x102/0x170
[ 5611.457596][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5611.457596][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5611.457596][   T73]      netlink_rcv_skb+0x130/0x360
[ 5611.457596][   T73]      netlink_unicast+0x449/0x710
[ 5611.457596][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5611.457596][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5611.457596][   T73]      ___sys_sendmsg+0xee/0x170
[ 5611.457596][   T73]      __sys_sendmsg+0xcd/0x170
[ 5611.457596][   T73]      do_syscall_64+0xc6/0x1e0
[ 5611.457596][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5611.457596][   T73] 
[ 5621.695780][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5621.696243][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5621.696243][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5621.696243][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5621.696243][   T73]      fib6_nh_init+0xa22/0x1580
[ 5621.696243][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5621.696243][   T73]      ip6_route_add+0x1c/0x140
[ 5621.696243][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5621.696243][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5621.696243][   T73]      netlink_rcv_skb+0x130/0x360
[ 5621.696243][   T73]      netlink_unicast+0x449/0x710
[ 5621.696243][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5621.696243][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5621.696243][   T73]      ___sys_sendmsg+0xee/0x170
[ 5621.696243][   T73]      __sys_sendmsg+0xcd/0x170
[ 5621.696243][   T73]      do_syscall_64+0xc6/0x1e0
[ 5621.696243][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5621.696243][   T73] 
[ 5621.698176][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5621.698176][   T73]      dst_init+0x84/0x4a0
[ 5621.698176][   T73]      dst_alloc+0x97/0x150
[ 5621.698176][   T73]      ip6_dst_alloc+0x23/0x90
[ 5621.698176][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5621.698176][   T73]      ip6_pol_route+0x56f/0x840
[ 5621.698176][   T73]      fib6_rule_lookup+0x456/0x630
[ 5621.698176][   T73]      ip6_route_input+0x59c/0xa50
[ 5621.698176][   T73]      ipv6_rcv+0x397/0x810
[ 5621.698176][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5621.698176][   T73]      process_backlog+0x101/0x620
[ 5621.698176][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5621.698176][   T73]      net_rx_action+0x495/0xbe0
[ 5621.698176][   T73]      __do_softirq+0x1b5/0x7f6
[ 5621.698176][   T73] 
[ 5621.699849][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5621.699849][   T73]      netdev_get_by_index+0x5e/0x80
[ 5621.699849][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5621.699849][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5621.699849][   T73]      ip6_route_add+0x1c/0x140
[ 5621.699849][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5621.699849][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5621.699849][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5621.699849][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5621.699849][   T73]      netlink_rcv_skb+0x130/0x360
[ 5621.699849][   T73]      netlink_unicast+0x449/0x710
[ 5621.699849][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5621.699849][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5621.699849][   T73]      ___sys_sendmsg+0xee/0x170
[ 5621.699849][   T73]      __sys_sendmsg+0xcd/0x170
[ 5621.699849][   T73]      do_syscall_64+0xc6/0x1e0
[ 5621.699849][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5621.699849][   T73] 
[ 5621.701969][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5621.701969][   T73]      netdev_get_by_index+0x5e/0x80
[ 5621.701969][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5621.701969][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5621.701969][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5621.701969][   T73]      ipv6_add_addr+0x411/0x2000
[ 5621.701969][   T73]      inet6_addr_add+0x30e/0xa40
[ 5621.701969][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5621.701969][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5621.701969][   T73]      netlink_rcv_skb+0x130/0x360
[ 5621.701969][   T73]      netlink_unicast+0x449/0x710
[ 5621.701969][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5621.701969][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5621.701969][   T73]      ___sys_sendmsg+0xee/0x170
[ 5621.701969][   T73]      __sys_sendmsg+0xcd/0x170
[ 5621.701969][   T73]      do_syscall_64+0xc6/0x1e0
[ 5621.701969][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5621.701969][   T73] 
[ 5621.704013][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5621.704013][   T73]      netdev_get_by_index+0x5e/0x80
[ 5621.704013][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5621.704013][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5621.704013][   T73]      ip6_route_add+0x1c/0x140
[ 5621.704013][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5621.704013][   T73]      addrconf_add_dev+0xe2/0x170
[ 5621.704013][   T73]      inet6_addr_add+0x12f/0xa40
[ 5621.704013][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5621.704013][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5621.704013][   T73]      netlink_rcv_skb+0x130/0x360
[ 5621.704013][   T73]      netlink_unicast+0x449/0x710
[ 5621.704013][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5621.704013][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5621.704013][   T73]      ___sys_sendmsg+0xee/0x170
[ 5621.704013][   T73]      __sys_sendmsg+0xcd/0x170
[ 5621.704013][   T73]      do_syscall_64+0xc6/0x1e0
[ 5621.704013][   T73] 
[ 5621.706014][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5621.706014][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5621.706014][   T73]      ipv6_find_idev+0x102/0x170
[ 5621.706014][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5621.706014][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5621.706014][   T73]      netlink_rcv_skb+0x130/0x360
[ 5621.706014][   T73]      netlink_unicast+0x449/0x710
[ 5621.706014][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5621.706014][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5621.706014][   T73]      ___sys_sendmsg+0xee/0x170
[ 5621.706014][   T73]      __sys_sendmsg+0xcd/0x170
[ 5621.706014][   T73]      do_syscall_64+0xc6/0x1e0
[ 5621.706014][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5621.706014][   T73] 
[ 5621.707587][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5621.707587][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5621.707587][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5621.707587][   T73]      ipv6_find_idev+0x102/0x170
[ 5621.707587][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5621.707587][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5621.707587][   T73]      netlink_rcv_skb+0x130/0x360
[ 5621.707587][   T73]      netlink_unicast+0x449/0x710
[ 5621.707587][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5621.707587][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5621.707587][   T73]      ___sys_sendmsg+0xee/0x170
[ 5621.707587][   T73]      __sys_sendmsg+0xcd/0x170
[ 5621.707587][   T73]      do_syscall_64+0xc6/0x1e0
[ 5621.707587][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5621.707587][   T73] 
[ 5621.709319][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5621.709610][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5621.709610][   T73]      netdev_get_by_index+0x5e/0x80
[ 5621.709610][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5621.709610][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5621.709610][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5621.709610][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5621.709610][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5621.709610][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5621.709610][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5621.709610][   T73]      addrconf_dad_begin+0x310/0x670
[ 5621.709610][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5621.709610][   T73]      process_one_work+0x84d/0x18a0
[ 5621.709610][   T73]      worker_thread+0x587/0xd30
[ 5621.709610][   T73]      kthread+0x28a/0x350
[ 5621.709610][   T73]      ret_from_fork+0x31/0x70
[ 5621.709610][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5621.709610][   T73] 
[ 5621.711548][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5621.711548][   T73]      netdev_get_by_index+0x5e/0x80
[ 5621.711548][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5621.711548][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5621.711548][   T73]      ip6_route_add+0x1c/0x140
[ 5621.711548][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5621.711548][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5621.711548][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5621.711548][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5621.711548][   T73]      netlink_rcv_skb+0x130/0x360
[ 5621.711548][   T73]      netlink_unicast+0x449/0x710
[ 5621.711548][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5621.711548][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5621.711548][   T73]      ___sys_sendmsg+0xee/0x170
[ 5621.711548][   T73]      __sys_sendmsg+0xcd/0x170
[ 5621.711548][   T73]      do_syscall_64+0xc6/0x1e0
[ 5621.711548][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5621.711548][   T73] 
[ 5621.713589][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5621.713589][   T73]      netdev_get_by_index+0x5e/0x80
[ 5621.713589][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5621.713589][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5621.713589][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5621.713589][   T73]      ipv6_add_addr+0x411/0x2000
[ 5621.713589][   T73]      inet6_addr_add+0x30e/0xa40
[ 5621.713589][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5621.713589][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5621.713589][   T73]      netlink_rcv_skb+0x130/0x360
[ 5621.713589][   T73]      netlink_unicast+0x449/0x710
[ 5621.713589][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5621.713589][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5621.713589][   T73]      ___sys_sendmsg+0xee/0x170
[ 5621.713589][   T73]      __sys_sendmsg+0xcd/0x170
[ 5621.713589][   T73]      do_syscall_64+0xc6/0x1e0
[ 5621.713589][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5621.713589][   T73] 
[ 5621.715603][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5621.715603][   T73]      netdev_get_by_index+0x5e/0x80
[ 5621.715603][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5621.715603][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5621.715603][   T73]      ip6_route_add+0x1c/0x140
[ 5621.715603][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5621.715603][   T73]      addrconf_add_dev+0xe2/0x170
[ 5621.715603][   T73]      inet6_addr_add+0x12f/0xa40
[ 5621.715603][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5621.715603][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5621.715603][   T73]      netlink_rcv_skb+0x130/0x360
[ 5621.715603][   T73]      netlink_unicast+0x449/0x710
[ 5621.715603][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5621.715603][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5621.715603][   T73]      ___sys_sendmsg+0xee/0x170
[ 5621.715603][   T73]      __sys_sendmsg+0xcd/0x170
[ 5621.715603][   T73]      do_syscall_64+0xc6/0x1e0
[ 5621.715603][   T73] 
[ 5621.717593][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5621.717593][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5621.717593][   T73]      ipv6_find_idev+0x102/0x170
[ 5621.717593][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5621.717593][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5621.717593][   T73]      netlink_rcv_skb+0x130/0x360
[ 5621.717593][   T73]      netlink_unicast+0x449/0x710
[ 5621.717593][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5621.717593][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5621.717593][   T73]      ___sys_sendmsg+0xee/0x170
[ 5621.717593][   T73]      __sys_sendmsg+0xcd/0x170
[ 5621.717593][   T73]      do_syscall_64+0xc6/0x1e0
[ 5621.717593][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5621.717593][   T73] 
[ 5621.719156][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5621.719156][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5621.719156][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5621.719156][   T73]      ipv6_find_idev+0x102/0x170
[ 5621.719156][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5621.719156][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5621.719156][   T73]      netlink_rcv_skb+0x130/0x360
[ 5621.719156][   T73]      netlink_unicast+0x449/0x710
[ 5621.719156][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5621.719156][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5621.719156][   T73]      ___sys_sendmsg+0xee/0x170
[ 5621.719156][   T73]      __sys_sendmsg+0xcd/0x170
[ 5621.719156][   T73]      do_syscall_64+0xc6/0x1e0
[ 5621.719156][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5621.719156][   T73] 
[ 5621.720865][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5621.721164][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5621.721164][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5621.721164][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5621.721164][   T73]      fib6_nh_init+0xa22/0x1580
[ 5621.721164][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5621.721164][   T73]      ip6_route_add+0x1c/0x140
[ 5621.721164][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5621.721164][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5621.721164][   T73]      netlink_rcv_skb+0x130/0x360
[ 5621.721164][   T73]      netlink_unicast+0x449/0x710
[ 5621.721164][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5621.721164][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5621.721164][   T73]      ___sys_sendmsg+0xee/0x170
[ 5621.721164][   T73]      __sys_sendmsg+0xcd/0x170
[ 5621.721164][   T73]      do_syscall_64+0xc6/0x1e0
[ 5621.721164][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5621.721164][   T73] 
[ 5621.723252][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5621.723252][   T73]      dst_init+0x84/0x4a0
[ 5621.723252][   T73]      dst_alloc+0x97/0x150
[ 5621.723252][   T73]      ip6_dst_alloc+0x23/0x90
[ 5621.723252][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5621.723252][   T73]      ip6_pol_route+0x56f/0x840
[ 5621.723252][   T73]      fib6_rule_lookup+0x456/0x630
[ 5621.723252][   T73]      ip6_route_input+0x59c/0xa50
[ 5621.723252][   T73]      ipv6_rcv+0x397/0x810
[ 5621.723252][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5621.723252][   T73]      process_backlog+0x101/0x620
[ 5621.723252][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5621.723252][   T73]      net_rx_action+0x495/0xbe0
[ 5621.723252][   T73]      __do_softirq+0x1b5/0x7f6
[ 5621.723252][   T73] 
[ 5621.725092][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5621.725092][   T73]      netdev_get_by_index+0x5e/0x80
[ 5621.725092][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5621.725092][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5621.725092][   T73]      ip6_route_add+0x1c/0x140
[ 5621.725092][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5621.725092][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5621.725092][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5621.725092][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5621.725092][   T73]      netlink_rcv_skb+0x130/0x360
[ 5621.725092][   T73]      netlink_unicast+0x449/0x710
[ 5621.725092][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5621.725092][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5621.725092][   T73]      ___sys_sendmsg+0xee/0x170
[ 5621.725092][   T73]      __sys_sendmsg+0xcd/0x170
[ 5621.725092][   T73]      do_syscall_64+0xc6/0x1e0
[ 5621.725092][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5621.725092][   T73] 
[ 5621.727438][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5621.727438][   T73]      netdev_get_by_index+0x5e/0x80
[ 5621.727438][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5621.727438][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5621.727438][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5621.727438][   T73]      ipv6_add_addr+0x411/0x2000
[ 5621.727438][   T73]      inet6_addr_add+0x30e/0xa40
[ 5621.727438][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5621.727438][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5621.727438][   T73]      netlink_rcv_skb+0x130/0x360
[ 5621.727438][   T73]      netlink_unicast+0x449/0x710
[ 5621.727438][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5621.727438][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5621.727438][   T73]      ___sys_sendmsg+0xee/0x170
[ 5621.727438][   T73]      __sys_sendmsg+0xcd/0x170
[ 5621.727438][   T73]      do_syscall_64+0xc6/0x1e0
[ 5621.727438][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5621.727438][   T73] 
[ 5621.729722][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5621.729722][   T73]      netdev_get_by_index+0x5e/0x80
[ 5621.729722][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5621.729722][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5621.729722][   T73]      ip6_route_add+0x1c/0x140
[ 5621.729722][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5621.729722][   T73]      addrconf_add_dev+0xe2/0x170
[ 5621.729722][   T73]      inet6_addr_add+0x12f/0xa40
[ 5621.729722][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5621.729722][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5621.729722][   T73]      netlink_rcv_skb+0x130/0x360
[ 5621.729722][   T73]      netlink_unicast+0x449/0x710
[ 5621.729722][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5621.729722][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5621.729722][   T73]      ___sys_sendmsg+0xee/0x170
[ 5621.729722][   T73]      __sys_sendmsg+0xcd/0x170
[ 5621.729722][   T73]      do_syscall_64+0xc6/0x1e0
[ 5621.729722][   T73] 
[ 5621.731905][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5621.731905][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5621.731905][   T73]      ipv6_find_idev+0x102/0x170
[ 5621.731905][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5621.731905][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5621.731905][   T73]      netlink_rcv_skb+0x130/0x360
[ 5621.731905][   T73]      netlink_unicast+0x449/0x710
[ 5621.731905][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5621.731905][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5621.731905][   T73]      ___sys_sendmsg+0xee/0x170
[ 5621.731905][   T73]      __sys_sendmsg+0xcd/0x170
[ 5621.731905][   T73]      do_syscall_64+0xc6/0x1e0
[ 5621.731905][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5621.731905][   T73] 
[ 5621.733657][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5621.733657][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5621.733657][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5621.733657][   T73]      ipv6_find_idev+0x102/0x170
[ 5621.733657][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5621.733657][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5621.733657][   T73]      netlink_rcv_skb+0x130/0x360
[ 5621.733657][   T73]      netlink_unicast+0x449/0x710
[ 5621.733657][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5621.733657][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5621.733657][   T73]      ___sys_sendmsg+0xee/0x170
[ 5621.733657][   T73]      __sys_sendmsg+0xcd/0x170
[ 5621.733657][   T73]      do_syscall_64+0xc6/0x1e0
[ 5621.733657][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5621.733657][   T73] 
[ 5621.735686][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5621.735957][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5621.735957][   T73]      netdev_get_by_index+0x5e/0x80
[ 5621.735957][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5621.735957][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5621.735957][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5621.735957][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5621.735957][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5621.735957][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5621.735957][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5621.735957][   T73]      addrconf_dad_begin+0x310/0x670
[ 5621.735957][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5621.735957][   T73]      process_one_work+0x84d/0x18a0
[ 5621.735957][   T73]      worker_thread+0x587/0xd30
[ 5621.735957][   T73]      kthread+0x28a/0x350
[ 5621.735957][   T73]      ret_from_fork+0x31/0x70
[ 5621.735957][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5621.735957][   T73] 
[ 5621.738160][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5621.738160][   T73]      netdev_get_by_index+0x5e/0x80
[ 5621.738160][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5621.738160][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5621.738160][   T73]      ip6_route_add+0x1c/0x140
[ 5621.738160][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5621.738160][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5621.738160][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5621.738160][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5621.738160][   T73]      netlink_rcv_skb+0x130/0x360
[ 5621.738160][   T73]      netlink_unicast+0x449/0x710
[ 5621.738160][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5621.738160][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5621.738160][   T73]      ___sys_sendmsg+0xee/0x170
[ 5621.738160][   T73]      __sys_sendmsg+0xcd/0x170
[ 5621.738160][   T73]      do_syscall_64+0xc6/0x1e0
[ 5621.738160][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5621.738160][   T73] 
[ 5621.740445][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5621.740445][   T73]      netdev_get_by_index+0x5e/0x80
[ 5621.740445][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5621.740445][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5621.740445][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5621.740445][   T73]      ipv6_add_addr+0x411/0x2000
[ 5621.740445][   T73]      inet6_addr_add+0x30e/0xa40
[ 5621.740445][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5621.740445][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5621.740445][   T73]      netlink_rcv_skb+0x130/0x360
[ 5621.740445][   T73]      netlink_unicast+0x449/0x710
[ 5621.740445][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5621.740445][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5621.740445][   T73]      ___sys_sendmsg+0xee/0x170
[ 5621.740445][   T73]      __sys_sendmsg+0xcd/0x170
[ 5621.740445][   T73]      do_syscall_64+0xc6/0x1e0
[ 5621.740445][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5621.740445][   T73] 
[ 5621.742665][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5621.742665][   T73]      netdev_get_by_index+0x5e/0x80
[ 5621.742665][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5621.742665][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5621.742665][   T73]      ip6_route_add+0x1c/0x140
[ 5621.742665][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5621.742665][   T73]      addrconf_add_dev+0xe2/0x170
[ 5621.742665][   T73]      inet6_addr_add+0x12f/0xa40
[ 5621.742665][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5621.742665][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5621.742665][   T73]      netlink_rcv_skb+0x130/0x360
[ 5621.742665][   T73]      netlink_unicast+0x449/0x710
[ 5621.742665][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5621.742665][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5621.742665][   T73]      ___sys_sendmsg+0xee/0x170
[ 5621.742665][   T73]      __sys_sendmsg+0xcd/0x170
[ 5621.742665][   T73]      do_syscall_64+0xc6/0x1e0
[ 5621.742665][   T73] 
[ 5621.744963][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5621.744963][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5621.744963][   T73]      ipv6_find_idev+0x102/0x170
[ 5621.744963][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5621.744963][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5621.744963][   T73]      netlink_rcv_skb+0x130/0x360
[ 5621.744963][   T73]      netlink_unicast+0x449/0x710
[ 5621.744963][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5621.744963][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5621.744963][   T73]      ___sys_sendmsg+0xee/0x170
[ 5621.744963][   T73]      __sys_sendmsg+0xcd/0x170
[ 5621.744963][   T73]      do_syscall_64+0xc6/0x1e0
[ 5621.744963][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5621.744963][   T73] 
[ 5621.746714][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5621.746714][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5621.746714][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5621.746714][   T73]      ipv6_find_idev+0x102/0x170
[ 5621.746714][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5621.746714][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5621.746714][   T73]      netlink_rcv_skb+0x130/0x360
[ 5621.746714][   T73]      netlink_unicast+0x449/0x710
[ 5621.746714][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5621.746714][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5621.746714][   T73]      ___sys_sendmsg+0xee/0x170
[ 5621.746714][   T73]      __sys_sendmsg+0xcd/0x170
[ 5621.746714][   T73]      do_syscall_64+0xc6/0x1e0
[ 5621.746714][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5621.746714][   T73] 
[ 5631.991782][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5631.992292][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5631.992292][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5631.992292][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5631.992292][   T73]      fib6_nh_init+0xa22/0x1580
[ 5631.992292][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5631.992292][   T73]      ip6_route_add+0x1c/0x140
[ 5631.992292][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5631.992292][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5631.992292][   T73]      netlink_rcv_skb+0x130/0x360
[ 5631.992292][   T73]      netlink_unicast+0x449/0x710
[ 5631.992292][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5631.992292][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5631.992292][   T73]      ___sys_sendmsg+0xee/0x170
[ 5631.992292][   T73]      __sys_sendmsg+0xcd/0x170
[ 5631.992292][   T73]      do_syscall_64+0xc6/0x1e0
[ 5631.992292][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5631.992292][   T73] 
[ 5631.994430][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5631.994430][   T73]      dst_init+0x84/0x4a0
[ 5631.994430][   T73]      dst_alloc+0x97/0x150
[ 5631.994430][   T73]      ip6_dst_alloc+0x23/0x90
[ 5631.994430][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5631.994430][   T73]      ip6_pol_route+0x56f/0x840
[ 5631.994430][   T73]      fib6_rule_lookup+0x456/0x630
[ 5631.994430][   T73]      ip6_route_input+0x59c/0xa50
[ 5631.994430][   T73]      ipv6_rcv+0x397/0x810
[ 5631.994430][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5631.994430][   T73]      process_backlog+0x101/0x620
[ 5631.994430][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5631.994430][   T73]      net_rx_action+0x495/0xbe0
[ 5631.994430][   T73]      __do_softirq+0x1b5/0x7f6
[ 5631.994430][   T73] 
[ 5631.996279][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5631.996279][   T73]      netdev_get_by_index+0x5e/0x80
[ 5631.996279][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5631.996279][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5631.996279][   T73]      ip6_route_add+0x1c/0x140
[ 5631.996279][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5631.996279][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5631.996279][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5631.996279][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5631.996279][   T73]      netlink_rcv_skb+0x130/0x360
[ 5631.996279][   T73]      netlink_unicast+0x449/0x710
[ 5631.996279][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5631.996279][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5631.996279][   T73]      ___sys_sendmsg+0xee/0x170
[ 5631.996279][   T73]      __sys_sendmsg+0xcd/0x170
[ 5631.996279][   T73]      do_syscall_64+0xc6/0x1e0
[ 5631.996279][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5631.996279][   T73] 
[ 5631.998589][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5631.998589][   T73]      netdev_get_by_index+0x5e/0x80
[ 5631.998589][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5631.998589][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5631.998589][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5631.998589][   T73]      ipv6_add_addr+0x411/0x2000
[ 5631.998589][   T73]      inet6_addr_add+0x30e/0xa40
[ 5631.998589][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5631.998589][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5631.998589][   T73]      netlink_rcv_skb+0x130/0x360
[ 5631.998589][   T73]      netlink_unicast+0x449/0x710
[ 5631.998589][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5631.998589][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5631.998589][   T73]      ___sys_sendmsg+0xee/0x170
[ 5631.998589][   T73]      __sys_sendmsg+0xcd/0x170
[ 5631.998589][   T73]      do_syscall_64+0xc6/0x1e0
[ 5631.998589][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5631.998589][   T73] 
[ 5632.000876][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5632.000876][   T73]      netdev_get_by_index+0x5e/0x80
[ 5632.000876][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5632.000876][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5632.000876][   T73]      ip6_route_add+0x1c/0x140
[ 5632.000876][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5632.000876][   T73]      addrconf_add_dev+0xe2/0x170
[ 5632.000876][   T73]      inet6_addr_add+0x12f/0xa40
[ 5632.000876][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5632.000876][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5632.000876][   T73]      netlink_rcv_skb+0x130/0x360
[ 5632.000876][   T73]      netlink_unicast+0x449/0x710
[ 5632.000876][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5632.000876][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5632.000876][   T73]      ___sys_sendmsg+0xee/0x170
[ 5632.000876][   T73]      __sys_sendmsg+0xcd/0x170
[ 5632.000876][   T73]      do_syscall_64+0xc6/0x1e0
[ 5632.000876][   T73] 
[ 5632.003063][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5632.003063][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5632.003063][   T73]      ipv6_find_idev+0x102/0x170
[ 5632.003063][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5632.003063][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5632.003063][   T73]      netlink_rcv_skb+0x130/0x360
[ 5632.003063][   T73]      netlink_unicast+0x449/0x710
[ 5632.003063][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5632.003063][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5632.003063][   T73]      ___sys_sendmsg+0xee/0x170
[ 5632.003063][   T73]      __sys_sendmsg+0xcd/0x170
[ 5632.003063][   T73]      do_syscall_64+0xc6/0x1e0
[ 5632.003063][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5632.003063][   T73] 
[ 5632.004785][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5632.004785][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5632.004785][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5632.004785][   T73]      ipv6_find_idev+0x102/0x170
[ 5632.004785][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5632.004785][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5632.004785][   T73]      netlink_rcv_skb+0x130/0x360
[ 5632.004785][   T73]      netlink_unicast+0x449/0x710
[ 5632.004785][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5632.004785][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5632.004785][   T73]      ___sys_sendmsg+0xee/0x170
[ 5632.004785][   T73]      __sys_sendmsg+0xcd/0x170
[ 5632.004785][   T73]      do_syscall_64+0xc6/0x1e0
[ 5632.004785][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5632.004785][   T73] 
[ 5632.006680][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5632.006990][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5632.006990][   T73]      netdev_get_by_index+0x5e/0x80
[ 5632.006990][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5632.006990][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5632.006990][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5632.006990][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5632.006990][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5632.006990][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5632.006990][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5632.006990][   T73]      addrconf_dad_begin+0x310/0x670
[ 5632.006990][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5632.006990][   T73]      process_one_work+0x84d/0x18a0
[ 5632.006990][   T73]      worker_thread+0x587/0xd30
[ 5632.006990][   T73]      kthread+0x28a/0x350
[ 5632.006990][   T73]      ret_from_fork+0x31/0x70
[ 5632.006990][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5632.006990][   T73] 
[ 5632.009134][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5632.009134][   T73]      netdev_get_by_index+0x5e/0x80
[ 5632.009134][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5632.009134][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5632.009134][   T73]      ip6_route_add+0x1c/0x140
[ 5632.009134][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5632.009134][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5632.009134][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5632.009134][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5632.009134][   T73]      netlink_rcv_skb+0x130/0x360
[ 5632.009134][   T73]      netlink_unicast+0x449/0x710
[ 5632.009134][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5632.009134][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5632.009134][   T73]      ___sys_sendmsg+0xee/0x170
[ 5632.009134][   T73]      __sys_sendmsg+0xcd/0x170
[ 5632.009134][   T73]      do_syscall_64+0xc6/0x1e0
[ 5632.009134][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5632.009134][   T73] 
[ 5632.011364][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5632.011364][   T73]      netdev_get_by_index+0x5e/0x80
[ 5632.011364][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5632.011364][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5632.011364][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5632.011364][   T73]      ipv6_add_addr+0x411/0x2000
[ 5632.011364][   T73]      inet6_addr_add+0x30e/0xa40
[ 5632.011364][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5632.011364][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5632.011364][   T73]      netlink_rcv_skb+0x130/0x360
[ 5632.011364][   T73]      netlink_unicast+0x449/0x710
[ 5632.011364][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5632.011364][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5632.011364][   T73]      ___sys_sendmsg+0xee/0x170
[ 5632.011364][   T73]      __sys_sendmsg+0xcd/0x170
[ 5632.011364][   T73]      do_syscall_64+0xc6/0x1e0
[ 5632.011364][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5632.011364][   T73] 
[ 5632.013603][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5632.013603][   T73]      netdev_get_by_index+0x5e/0x80
[ 5632.013603][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5632.013603][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5632.013603][   T73]      ip6_route_add+0x1c/0x140
[ 5632.013603][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5632.013603][   T73]      addrconf_add_dev+0xe2/0x170
[ 5632.013603][   T73]      inet6_addr_add+0x12f/0xa40
[ 5632.013603][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5632.013603][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5632.013603][   T73]      netlink_rcv_skb+0x130/0x360
[ 5632.013603][   T73]      netlink_unicast+0x449/0x710
[ 5632.013603][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5632.013603][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5632.013603][   T73]      ___sys_sendmsg+0xee/0x170
[ 5632.013603][   T73]      __sys_sendmsg+0xcd/0x170
[ 5632.013603][   T73]      do_syscall_64+0xc6/0x1e0
[ 5632.013603][   T73] 
[ 5632.015796][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5632.015796][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5632.015796][   T73]      ipv6_find_idev+0x102/0x170
[ 5632.015796][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5632.015796][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5632.015796][   T73]      netlink_rcv_skb+0x130/0x360
[ 5632.015796][   T73]      netlink_unicast+0x449/0x710
[ 5632.015796][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5632.015796][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5632.015796][   T73]      ___sys_sendmsg+0xee/0x170
[ 5632.015796][   T73]      __sys_sendmsg+0xcd/0x170
[ 5632.015796][   T73]      do_syscall_64+0xc6/0x1e0
[ 5632.015796][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5632.015796][   T73] 
[ 5632.017507][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5632.017507][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5632.017507][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5632.017507][   T73]      ipv6_find_idev+0x102/0x170
[ 5632.017507][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5632.017507][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5632.017507][   T73]      netlink_rcv_skb+0x130/0x360
[ 5632.017507][   T73]      netlink_unicast+0x449/0x710
[ 5632.017507][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5632.017507][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5632.017507][   T73]      ___sys_sendmsg+0xee/0x170
[ 5632.017507][   T73]      __sys_sendmsg+0xcd/0x170
[ 5632.017507][   T73]      do_syscall_64+0xc6/0x1e0
[ 5632.017507][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5632.017507][   T73] 
[ 5632.019486][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5632.019805][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5632.019805][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5632.019805][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5632.019805][   T73]      fib6_nh_init+0xa22/0x1580
[ 5632.019805][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5632.019805][   T73]      ip6_route_add+0x1c/0x140
[ 5632.019805][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5632.019805][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5632.019805][   T73]      netlink_rcv_skb+0x130/0x360
[ 5632.019805][   T73]      netlink_unicast+0x449/0x710
[ 5632.019805][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5632.019805][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5632.019805][   T73]      ___sys_sendmsg+0xee/0x170
[ 5632.019805][   T73]      __sys_sendmsg+0xcd/0x170
[ 5632.019805][   T73]      do_syscall_64+0xc6/0x1e0
[ 5632.019805][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5632.019805][   T73] 
[ 5632.022115][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5632.022115][   T73]      dst_init+0x84/0x4a0
[ 5632.022115][   T73]      dst_alloc+0x97/0x150
[ 5632.022115][   T73]      ip6_dst_alloc+0x23/0x90
[ 5632.022115][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5632.022115][   T73]      ip6_pol_route+0x56f/0x840
[ 5632.022115][   T73]      fib6_rule_lookup+0x456/0x630
[ 5632.022115][   T73]      ip6_route_input+0x59c/0xa50
[ 5632.022115][   T73]      ipv6_rcv+0x397/0x810
[ 5632.022115][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5632.022115][   T73]      process_backlog+0x101/0x620
[ 5632.022115][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5632.022115][   T73]      net_rx_action+0x495/0xbe0
[ 5632.022115][   T73]      __do_softirq+0x1b5/0x7f6
[ 5632.022115][   T73] 
[ 5632.024149][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5632.024149][   T73]      netdev_get_by_index+0x5e/0x80
[ 5632.024149][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5632.024149][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5632.024149][   T73]      ip6_route_add+0x1c/0x140
[ 5632.024149][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5632.024149][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5632.024149][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5632.024149][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5632.024149][   T73]      netlink_rcv_skb+0x130/0x360
[ 5632.024149][   T73]      netlink_unicast+0x449/0x710
[ 5632.024149][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5632.024149][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5632.024149][   T73]      ___sys_sendmsg+0xee/0x170
[ 5632.024149][   T73]      __sys_sendmsg+0xcd/0x170
[ 5632.024149][   T73]      do_syscall_64+0xc6/0x1e0
[ 5632.024149][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5632.024149][   T73] 
[ 5632.026657][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5632.026657][   T73]      netdev_get_by_index+0x5e/0x80
[ 5632.026657][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5632.026657][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5632.026657][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5632.026657][   T73]      ipv6_add_addr+0x411/0x2000
[ 5632.026657][   T73]      inet6_addr_add+0x30e/0xa40
[ 5632.026657][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5632.026657][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5632.026657][   T73]      netlink_rcv_skb+0x130/0x360
[ 5632.026657][   T73]      netlink_unicast+0x449/0x710
[ 5632.026657][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5632.026657][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5632.026657][   T73]      ___sys_sendmsg+0xee/0x170
[ 5632.026657][   T73]      __sys_sendmsg+0xcd/0x170
[ 5632.026657][   T73]      do_syscall_64+0xc6/0x1e0
[ 5632.026657][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5632.026657][   T73] 
[ 5632.029122][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5632.029122][   T73]      netdev_get_by_index+0x5e/0x80
[ 5632.029122][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5632.029122][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5632.029122][   T73]      ip6_route_add+0x1c/0x140
[ 5632.029122][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5632.029122][   T73]      addrconf_add_dev+0xe2/0x170
[ 5632.029122][   T73]      inet6_addr_add+0x12f/0xa40
[ 5632.029122][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5632.029122][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5632.029122][   T73]      netlink_rcv_skb+0x130/0x360
[ 5632.029122][   T73]      netlink_unicast+0x449/0x710
[ 5632.029122][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5632.029122][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5632.029122][   T73]      ___sys_sendmsg+0xee/0x170
[ 5632.029122][   T73]      __sys_sendmsg+0xcd/0x170
[ 5632.029122][   T73]      do_syscall_64+0xc6/0x1e0
[ 5632.029122][   T73] 
[ 5632.031648][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5632.031648][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5632.031648][   T73]      ipv6_find_idev+0x102/0x170
[ 5632.031648][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5632.031648][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5632.031648][   T73]      netlink_rcv_skb+0x130/0x360
[ 5632.031648][   T73]      netlink_unicast+0x449/0x710
[ 5632.031648][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5632.031648][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5632.031648][   T73]      ___sys_sendmsg+0xee/0x170
[ 5632.031648][   T73]      __sys_sendmsg+0xcd/0x170
[ 5632.031648][   T73]      do_syscall_64+0xc6/0x1e0
[ 5632.031648][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5632.031648][   T73] 
[ 5632.033570][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5632.033570][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5632.033570][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5632.033570][   T73]      ipv6_find_idev+0x102/0x170
[ 5632.033570][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5632.033570][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5632.033570][   T73]      netlink_rcv_skb+0x130/0x360
[ 5632.033570][   T73]      netlink_unicast+0x449/0x710
[ 5632.033570][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5632.033570][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5632.033570][   T73]      ___sys_sendmsg+0xee/0x170
[ 5632.033570][   T73]      __sys_sendmsg+0xcd/0x170
[ 5632.033570][   T73]      do_syscall_64+0xc6/0x1e0
[ 5632.033570][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5632.033570][   T73] 
[ 5632.035675][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5632.036078][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5632.036078][   T73]      netdev_get_by_index+0x5e/0x80
[ 5632.036078][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5632.036078][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5632.036078][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5632.036078][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5632.036078][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5632.036078][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5632.036078][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5632.036078][   T73]      addrconf_dad_begin+0x310/0x670
[ 5632.036078][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5632.036078][   T73]      process_one_work+0x84d/0x18a0
[ 5632.036078][   T73]      worker_thread+0x587/0xd30
[ 5632.036078][   T73]      kthread+0x28a/0x350
[ 5632.036078][   T73]      ret_from_fork+0x31/0x70
[ 5632.036078][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5632.036078][   T73] 
[ 5632.038308][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5632.038308][   T73]      netdev_get_by_index+0x5e/0x80
[ 5632.038308][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5632.038308][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5632.038308][   T73]      ip6_route_add+0x1c/0x140
[ 5632.038308][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5632.038308][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5632.038308][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5632.038308][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5632.038308][   T73]      netlink_rcv_skb+0x130/0x360
[ 5632.038308][   T73]      netlink_unicast+0x449/0x710
[ 5632.038308][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5632.038308][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5632.038308][   T73]      ___sys_sendmsg+0xee/0x170
[ 5632.038308][   T73]      __sys_sendmsg+0xcd/0x170
[ 5632.038308][   T73]      do_syscall_64+0xc6/0x1e0
[ 5632.038308][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5632.038308][   T73] 
[ 5632.040794][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5632.040794][   T73]      netdev_get_by_index+0x5e/0x80
[ 5632.040794][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5632.040794][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5632.040794][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5632.040794][   T73]      ipv6_add_addr+0x411/0x2000
[ 5632.040794][   T73]      inet6_addr_add+0x30e/0xa40
[ 5632.040794][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5632.040794][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5632.040794][   T73]      netlink_rcv_skb+0x130/0x360
[ 5632.040794][   T73]      netlink_unicast+0x449/0x710
[ 5632.040794][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5632.040794][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5632.040794][   T73]      ___sys_sendmsg+0xee/0x170
[ 5632.040794][   T73]      __sys_sendmsg+0xcd/0x170
[ 5632.040794][   T73]      do_syscall_64+0xc6/0x1e0
[ 5632.040794][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5632.040794][   T73] 
[ 5632.043353][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5632.043353][   T73]      netdev_get_by_index+0x5e/0x80
[ 5632.043353][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5632.043353][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5632.043353][   T73]      ip6_route_add+0x1c/0x140
[ 5632.043353][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5632.043353][   T73]      addrconf_add_dev+0xe2/0x170
[ 5632.043353][   T73]      inet6_addr_add+0x12f/0xa40
[ 5632.043353][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5632.043353][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5632.043353][   T73]      netlink_rcv_skb+0x130/0x360
[ 5632.043353][   T73]      netlink_unicast+0x449/0x710
[ 5632.043353][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5632.043353][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5632.043353][   T73]      ___sys_sendmsg+0xee/0x170
[ 5632.043353][   T73]      __sys_sendmsg+0xcd/0x170
[ 5632.043353][   T73]      do_syscall_64+0xc6/0x1e0
[ 5632.043353][   T73] 
[ 5632.045821][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5632.045821][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5632.045821][   T73]      ipv6_find_idev+0x102/0x170
[ 5632.045821][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5632.045821][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5632.045821][   T73]      netlink_rcv_skb+0x130/0x360
[ 5632.045821][   T73]      netlink_unicast+0x449/0x710
[ 5632.045821][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5632.045821][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5632.045821][   T73]      ___sys_sendmsg+0xee/0x170
[ 5632.045821][   T73]      __sys_sendmsg+0xcd/0x170
[ 5632.045821][   T73]      do_syscall_64+0xc6/0x1e0
[ 5632.045821][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5632.045821][   T73] 
[ 5632.047743][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5632.047743][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5632.047743][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5632.047743][   T73]      ipv6_find_idev+0x102/0x170
[ 5632.047743][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5632.047743][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5632.047743][   T73]      netlink_rcv_skb+0x130/0x360
[ 5632.047743][   T73]      netlink_unicast+0x449/0x710
[ 5632.047743][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5632.047743][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5632.047743][   T73]      ___sys_sendmsg+0xee/0x170
[ 5632.047743][   T73]      __sys_sendmsg+0xcd/0x170
[ 5632.047743][   T73]      do_syscall_64+0xc6/0x1e0
[ 5632.047743][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5632.047743][   T73] 
[ 5642.287795][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5642.288341][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5642.288341][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5642.288341][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5642.288341][   T73]      fib6_nh_init+0xa22/0x1580
[ 5642.288341][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5642.288341][   T73]      ip6_route_add+0x1c/0x140
[ 5642.288341][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5642.288341][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5642.288341][   T73]      netlink_rcv_skb+0x130/0x360
[ 5642.288341][   T73]      netlink_unicast+0x449/0x710
[ 5642.288341][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5642.288341][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5642.288341][   T73]      ___sys_sendmsg+0xee/0x170
[ 5642.288341][   T73]      __sys_sendmsg+0xcd/0x170
[ 5642.288341][   T73]      do_syscall_64+0xc6/0x1e0
[ 5642.288341][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5642.288341][   T73] 
[ 5642.290479][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5642.290479][   T73]      dst_init+0x84/0x4a0
[ 5642.290479][   T73]      dst_alloc+0x97/0x150
[ 5642.290479][   T73]      ip6_dst_alloc+0x23/0x90
[ 5642.290479][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5642.290479][   T73]      ip6_pol_route+0x56f/0x840
[ 5642.290479][   T73]      fib6_rule_lookup+0x456/0x630
[ 5642.290479][   T73]      ip6_route_input+0x59c/0xa50
[ 5642.290479][   T73]      ipv6_rcv+0x397/0x810
[ 5642.290479][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5642.290479][   T73]      process_backlog+0x101/0x620
[ 5642.290479][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5642.290479][   T73]      net_rx_action+0x495/0xbe0
[ 5642.290479][   T73]      __do_softirq+0x1b5/0x7f6
[ 5642.290479][   T73] 
[ 5642.292337][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5642.292337][   T73]      netdev_get_by_index+0x5e/0x80
[ 5642.292337][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5642.292337][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5642.292337][   T73]      ip6_route_add+0x1c/0x140
[ 5642.292337][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5642.292337][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5642.292337][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5642.292337][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5642.292337][   T73]      netlink_rcv_skb+0x130/0x360
[ 5642.292337][   T73]      netlink_unicast+0x449/0x710
[ 5642.292337][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5642.292337][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5642.292337][   T73]      ___sys_sendmsg+0xee/0x170
[ 5642.292337][   T73]      __sys_sendmsg+0xcd/0x170
[ 5642.292337][   T73]      do_syscall_64+0xc6/0x1e0
[ 5642.292337][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5642.292337][   T73] 
[ 5642.294607][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5642.294607][   T73]      netdev_get_by_index+0x5e/0x80
[ 5642.294607][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5642.294607][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5642.294607][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5642.294607][   T73]      ipv6_add_addr+0x411/0x2000
[ 5642.294607][   T73]      inet6_addr_add+0x30e/0xa40
[ 5642.294607][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5642.294607][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5642.294607][   T73]      netlink_rcv_skb+0x130/0x360
[ 5642.294607][   T73]      netlink_unicast+0x449/0x710
[ 5642.294607][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5642.294607][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5642.294607][   T73]      ___sys_sendmsg+0xee/0x170
[ 5642.294607][   T73]      __sys_sendmsg+0xcd/0x170
[ 5642.294607][   T73]      do_syscall_64+0xc6/0x1e0
[ 5642.294607][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5642.294607][   T73] 
[ 5642.297399][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5642.297399][   T73]      netdev_get_by_index+0x5e/0x80
[ 5642.297399][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5642.297399][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5642.297399][   T73]      ip6_route_add+0x1c/0x140
[ 5642.297399][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5642.297399][   T73]      addrconf_add_dev+0xe2/0x170
[ 5642.297399][   T73]      inet6_addr_add+0x12f/0xa40
[ 5642.297399][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5642.297399][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5642.297399][   T73]      netlink_rcv_skb+0x130/0x360
[ 5642.297399][   T73]      netlink_unicast+0x449/0x710
[ 5642.297399][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5642.297399][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5642.297399][   T73]      ___sys_sendmsg+0xee/0x170
[ 5642.297399][   T73]      __sys_sendmsg+0xcd/0x170
[ 5642.297399][   T73]      do_syscall_64+0xc6/0x1e0
[ 5642.297399][   T73] 
[ 5642.299620][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5642.299620][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5642.299620][   T73]      ipv6_find_idev+0x102/0x170
[ 5642.299620][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5642.299620][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5642.299620][   T73]      netlink_rcv_skb+0x130/0x360
[ 5642.299620][   T73]      netlink_unicast+0x449/0x710
[ 5642.299620][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5642.299620][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5642.299620][   T73]      ___sys_sendmsg+0xee/0x170
[ 5642.299620][   T73]      __sys_sendmsg+0xcd/0x170
[ 5642.299620][   T73]      do_syscall_64+0xc6/0x1e0
[ 5642.299620][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5642.299620][   T73] 
[ 5642.301330][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5642.301330][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5642.301330][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5642.301330][   T73]      ipv6_find_idev+0x102/0x170
[ 5642.301330][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5642.301330][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5642.301330][   T73]      netlink_rcv_skb+0x130/0x360
[ 5642.301330][   T73]      netlink_unicast+0x449/0x710
[ 5642.301330][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5642.301330][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5642.301330][   T73]      ___sys_sendmsg+0xee/0x170
[ 5642.301330][   T73]      __sys_sendmsg+0xcd/0x170
[ 5642.301330][   T73]      do_syscall_64+0xc6/0x1e0
[ 5642.301330][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5642.301330][   T73] 
[ 5642.303213][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5642.303516][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5642.303516][   T73]      netdev_get_by_index+0x5e/0x80
[ 5642.303516][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5642.303516][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5642.303516][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5642.303516][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5642.303516][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5642.303516][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5642.303516][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5642.303516][   T73]      addrconf_dad_begin+0x310/0x670
[ 5642.303516][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5642.303516][   T73]      process_one_work+0x84d/0x18a0
[ 5642.303516][   T73]      worker_thread+0x587/0xd30
[ 5642.303516][   T73]      kthread+0x28a/0x350
[ 5642.303516][   T73]      ret_from_fork+0x31/0x70
[ 5642.303516][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5642.303516][   T73] 
[ 5642.305653][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5642.305653][   T73]      netdev_get_by_index+0x5e/0x80
[ 5642.305653][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5642.305653][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5642.305653][   T73]      ip6_route_add+0x1c/0x140
[ 5642.305653][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5642.305653][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5642.305653][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5642.305653][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5642.305653][   T73]      netlink_rcv_skb+0x130/0x360
[ 5642.305653][   T73]      netlink_unicast+0x449/0x710
[ 5642.305653][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5642.305653][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5642.305653][   T73]      ___sys_sendmsg+0xee/0x170
[ 5642.305653][   T73]      __sys_sendmsg+0xcd/0x170
[ 5642.305653][   T73]      do_syscall_64+0xc6/0x1e0
[ 5642.305653][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5642.305653][   T73] 
[ 5642.307876][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5642.307876][   T73]      netdev_get_by_index+0x5e/0x80
[ 5642.307876][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5642.307876][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5642.307876][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5642.307876][   T73]      ipv6_add_addr+0x411/0x2000
[ 5642.307876][   T73]      inet6_addr_add+0x30e/0xa40
[ 5642.307876][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5642.307876][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5642.307876][   T73]      netlink_rcv_skb+0x130/0x360
[ 5642.307876][   T73]      netlink_unicast+0x449/0x710
[ 5642.307876][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5642.307876][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5642.307876][   T73]      ___sys_sendmsg+0xee/0x170
[ 5642.307876][   T73]      __sys_sendmsg+0xcd/0x170
[ 5642.307876][   T73]      do_syscall_64+0xc6/0x1e0
[ 5642.307876][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5642.307876][   T73] 
[ 5642.310125][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5642.310125][   T73]      netdev_get_by_index+0x5e/0x80
[ 5642.310125][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5642.310125][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5642.310125][   T73]      ip6_route_add+0x1c/0x140
[ 5642.310125][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5642.310125][   T73]      addrconf_add_dev+0xe2/0x170
[ 5642.310125][   T73]      inet6_addr_add+0x12f/0xa40
[ 5642.310125][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5642.310125][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5642.310125][   T73]      netlink_rcv_skb+0x130/0x360
[ 5642.310125][   T73]      netlink_unicast+0x449/0x710
[ 5642.310125][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5642.310125][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5642.310125][   T73]      ___sys_sendmsg+0xee/0x170
[ 5642.310125][   T73]      __sys_sendmsg+0xcd/0x170
[ 5642.310125][   T73]      do_syscall_64+0xc6/0x1e0
[ 5642.310125][   T73] 
[ 5642.312309][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5642.312309][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5642.312309][   T73]      ipv6_find_idev+0x102/0x170
[ 5642.312309][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5642.312309][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5642.312309][   T73]      netlink_rcv_skb+0x130/0x360
[ 5642.312309][   T73]      netlink_unicast+0x449/0x710
[ 5642.312309][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5642.312309][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5642.312309][   T73]      ___sys_sendmsg+0xee/0x170
[ 5642.312309][   T73]      __sys_sendmsg+0xcd/0x170
[ 5642.312309][   T73]      do_syscall_64+0xc6/0x1e0
[ 5642.312309][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5642.312309][   T73] 
[ 5642.314049][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5642.314049][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5642.314049][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5642.314049][   T73]      ipv6_find_idev+0x102/0x170
[ 5642.314049][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5642.314049][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5642.314049][   T73]      netlink_rcv_skb+0x130/0x360
[ 5642.314049][   T73]      netlink_unicast+0x449/0x710
[ 5642.314049][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5642.314049][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5642.314049][   T73]      ___sys_sendmsg+0xee/0x170
[ 5642.314049][   T73]      __sys_sendmsg+0xcd/0x170
[ 5642.314049][   T73]      do_syscall_64+0xc6/0x1e0
[ 5642.314049][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5642.314049][   T73] 
[ 5642.315947][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5642.316241][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5642.316241][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5642.316241][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5642.316241][   T73]      fib6_nh_init+0xa22/0x1580
[ 5642.316241][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5642.316241][   T73]      ip6_route_add+0x1c/0x140
[ 5642.316241][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5642.316241][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5642.316241][   T73]      netlink_rcv_skb+0x130/0x360
[ 5642.316241][   T73]      netlink_unicast+0x449/0x710
[ 5642.316241][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5642.316241][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5642.316241][   T73]      ___sys_sendmsg+0xee/0x170
[ 5642.316241][   T73]      __sys_sendmsg+0xcd/0x170
[ 5642.316241][   T73]      do_syscall_64+0xc6/0x1e0
[ 5642.316241][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5642.316241][   T73] 
[ 5642.318560][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5642.318560][   T73]      dst_init+0x84/0x4a0
[ 5642.318560][   T73]      dst_alloc+0x97/0x150
[ 5642.318560][   T73]      ip6_dst_alloc+0x23/0x90
[ 5642.318560][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5642.318560][   T73]      ip6_pol_route+0x56f/0x840
[ 5642.318560][   T73]      fib6_rule_lookup+0x456/0x630
[ 5642.318560][   T73]      ip6_route_input+0x59c/0xa50
[ 5642.318560][   T73]      ipv6_rcv+0x397/0x810
[ 5642.318560][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5642.318560][   T73]      process_backlog+0x101/0x620
[ 5642.318560][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5642.318560][   T73]      net_rx_action+0x495/0xbe0
[ 5642.318560][   T73]      __do_softirq+0x1b5/0x7f6
[ 5642.318560][   T73] 
[ 5642.320585][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5642.320585][   T73]      netdev_get_by_index+0x5e/0x80
[ 5642.320585][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5642.320585][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5642.320585][   T73]      ip6_route_add+0x1c/0x140
[ 5642.320585][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5642.320585][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5642.320585][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5642.320585][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5642.320585][   T73]      netlink_rcv_skb+0x130/0x360
[ 5642.320585][   T73]      netlink_unicast+0x449/0x710
[ 5642.320585][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5642.320585][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5642.320585][   T73]      ___sys_sendmsg+0xee/0x170
[ 5642.320585][   T73]      __sys_sendmsg+0xcd/0x170
[ 5642.320585][   T73]      do_syscall_64+0xc6/0x1e0
[ 5642.320585][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5642.320585][   T73] 
[ 5642.325377][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5642.325377][   T73]      netdev_get_by_index+0x5e/0x80
[ 5642.325377][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5642.325377][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5642.325377][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5642.325377][   T73]      ipv6_add_addr+0x411/0x2000
[ 5642.325377][   T73]      inet6_addr_add+0x30e/0xa40
[ 5642.325377][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5642.325377][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5642.325377][   T73]      netlink_rcv_skb+0x130/0x360
[ 5642.325377][   T73]      netlink_unicast+0x449/0x710
[ 5642.325377][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5642.325377][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5642.325377][   T73]      ___sys_sendmsg+0xee/0x170
[ 5642.325377][   T73]      __sys_sendmsg+0xcd/0x170
[ 5642.325377][   T73]      do_syscall_64+0xc6/0x1e0
[ 5642.325377][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5642.325377][   T73] 
[ 5642.327830][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5642.327830][   T73]      netdev_get_by_index+0x5e/0x80
[ 5642.327830][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5642.327830][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5642.327830][   T73]      ip6_route_add+0x1c/0x140
[ 5642.327830][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5642.327830][   T73]      addrconf_add_dev+0xe2/0x170
[ 5642.327830][   T73]      inet6_addr_add+0x12f/0xa40
[ 5642.327830][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5642.327830][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5642.327830][   T73]      netlink_rcv_skb+0x130/0x360
[ 5642.327830][   T73]      netlink_unicast+0x449/0x710
[ 5642.327830][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5642.327830][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5642.327830][   T73]      ___sys_sendmsg+0xee/0x170
[ 5642.327830][   T73]      __sys_sendmsg+0xcd/0x170
[ 5642.327830][   T73]      do_syscall_64+0xc6/0x1e0
[ 5642.327830][   T73] 
[ 5642.330285][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5642.330285][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5642.330285][   T73]      ipv6_find_idev+0x102/0x170
[ 5642.330285][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5642.330285][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5642.330285][   T73]      netlink_rcv_skb+0x130/0x360
[ 5642.330285][   T73]      netlink_unicast+0x449/0x710
[ 5642.330285][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5642.330285][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5642.330285][   T73]      ___sys_sendmsg+0xee/0x170
[ 5642.330285][   T73]      __sys_sendmsg+0xcd/0x170
[ 5642.330285][   T73]      do_syscall_64+0xc6/0x1e0
[ 5642.330285][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5642.330285][   T73] 
[ 5642.332199][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5642.332199][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5642.332199][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5642.332199][   T73]      ipv6_find_idev+0x102/0x170
[ 5642.332199][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5642.332199][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5642.332199][   T73]      netlink_rcv_skb+0x130/0x360
[ 5642.332199][   T73]      netlink_unicast+0x449/0x710
[ 5642.332199][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5642.332199][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5642.332199][   T73]      ___sys_sendmsg+0xee/0x170
[ 5642.332199][   T73]      __sys_sendmsg+0xcd/0x170
[ 5642.332199][   T73]      do_syscall_64+0xc6/0x1e0
[ 5642.332199][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5642.332199][   T73] 
[ 5642.334320][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5642.335162][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5642.335162][   T73]      netdev_get_by_index+0x5e/0x80
[ 5642.335162][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5642.335162][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5642.335162][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5642.335162][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5642.335162][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5642.335162][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5642.335162][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5642.335162][   T73]      addrconf_dad_begin+0x310/0x670
[ 5642.335162][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5642.335162][   T73]      process_one_work+0x84d/0x18a0
[ 5642.335162][   T73]      worker_thread+0x587/0xd30
[ 5642.335162][   T73]      kthread+0x28a/0x350
[ 5642.335162][   T73]      ret_from_fork+0x31/0x70
[ 5642.335162][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5642.335162][   T73] 
[ 5642.337333][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5642.337333][   T73]      netdev_get_by_index+0x5e/0x80
[ 5642.337333][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5642.337333][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5642.337333][   T73]      ip6_route_add+0x1c/0x140
[ 5642.337333][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5642.337333][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5642.337333][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5642.337333][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5642.337333][   T73]      netlink_rcv_skb+0x130/0x360
[ 5642.337333][   T73]      netlink_unicast+0x449/0x710
[ 5642.337333][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5642.337333][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5642.337333][   T73]      ___sys_sendmsg+0xee/0x170
[ 5642.337333][   T73]      __sys_sendmsg+0xcd/0x170
[ 5642.337333][   T73]      do_syscall_64+0xc6/0x1e0
[ 5642.337333][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5642.337333][   T73] 
[ 5642.339660][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5642.339660][   T73]      netdev_get_by_index+0x5e/0x80
[ 5642.339660][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5642.339660][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5642.339660][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5642.339660][   T73]      ipv6_add_addr+0x411/0x2000
[ 5642.339660][   T73]      inet6_addr_add+0x30e/0xa40
[ 5642.339660][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5642.339660][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5642.339660][   T73]      netlink_rcv_skb+0x130/0x360
[ 5642.339660][   T73]      netlink_unicast+0x449/0x710
[ 5642.339660][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5642.339660][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5642.339660][   T73]      ___sys_sendmsg+0xee/0x170
[ 5642.339660][   T73]      __sys_sendmsg+0xcd/0x170
[ 5642.339660][   T73]      do_syscall_64+0xc6/0x1e0
[ 5642.339660][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5642.339660][   T73] 
[ 5642.342142][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5642.342142][   T73]      netdev_get_by_index+0x5e/0x80
[ 5642.342142][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5642.342142][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5642.342142][   T73]      ip6_route_add+0x1c/0x140
[ 5642.342142][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5642.342142][   T73]      addrconf_add_dev+0xe2/0x170
[ 5642.342142][   T73]      inet6_addr_add+0x12f/0xa40
[ 5642.342142][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5642.342142][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5642.342142][   T73]      netlink_rcv_skb+0x130/0x360
[ 5642.342142][   T73]      netlink_unicast+0x449/0x710
[ 5642.342142][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5642.342142][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5642.342142][   T73]      ___sys_sendmsg+0xee/0x170
[ 5642.342142][   T73]      __sys_sendmsg+0xcd/0x170
[ 5642.342142][   T73]      do_syscall_64+0xc6/0x1e0
[ 5642.342142][   T73] 
[ 5642.344626][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5642.344626][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5642.344626][   T73]      ipv6_find_idev+0x102/0x170
[ 5642.344626][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5642.344626][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5642.344626][   T73]      netlink_rcv_skb+0x130/0x360
[ 5642.344626][   T73]      netlink_unicast+0x449/0x710
[ 5642.344626][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5642.344626][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5642.344626][   T73]      ___sys_sendmsg+0xee/0x170
[ 5642.344626][   T73]      __sys_sendmsg+0xcd/0x170
[ 5642.344626][   T73]      do_syscall_64+0xc6/0x1e0
[ 5642.344626][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5642.344626][   T73] 
[ 5642.346548][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5642.346548][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5642.346548][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5642.346548][   T73]      ipv6_find_idev+0x102/0x170
[ 5642.346548][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5642.346548][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5642.346548][   T73]      netlink_rcv_skb+0x130/0x360
[ 5642.346548][   T73]      netlink_unicast+0x449/0x710
[ 5642.346548][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5642.346548][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5642.346548][   T73]      ___sys_sendmsg+0xee/0x170
[ 5642.346548][   T73]      __sys_sendmsg+0xcd/0x170
[ 5642.346548][   T73]      do_syscall_64+0xc6/0x1e0
[ 5642.346548][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5642.346548][   T73] 
[ 5652.591759][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5652.592269][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5652.592269][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5652.592269][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5652.592269][   T73]      fib6_nh_init+0xa22/0x1580
[ 5652.592269][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5652.592269][   T73]      ip6_route_add+0x1c/0x140
[ 5652.592269][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5652.592269][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5652.592269][   T73]      netlink_rcv_skb+0x130/0x360
[ 5652.592269][   T73]      netlink_unicast+0x449/0x710
[ 5652.592269][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5652.592269][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5652.592269][   T73]      ___sys_sendmsg+0xee/0x170
[ 5652.592269][   T73]      __sys_sendmsg+0xcd/0x170
[ 5652.592269][   T73]      do_syscall_64+0xc6/0x1e0
[ 5652.592269][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5652.592269][   T73] 
[ 5652.594424][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5652.594424][   T73]      dst_init+0x84/0x4a0
[ 5652.594424][   T73]      dst_alloc+0x97/0x150
[ 5652.594424][   T73]      ip6_dst_alloc+0x23/0x90
[ 5652.594424][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5652.594424][   T73]      ip6_pol_route+0x56f/0x840
[ 5652.594424][   T73]      fib6_rule_lookup+0x456/0x630
[ 5652.594424][   T73]      ip6_route_input+0x59c/0xa50
[ 5652.594424][   T73]      ipv6_rcv+0x397/0x810
[ 5652.594424][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5652.594424][   T73]      process_backlog+0x101/0x620
[ 5652.594424][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5652.594424][   T73]      net_rx_action+0x495/0xbe0
[ 5652.594424][   T73]      __do_softirq+0x1b5/0x7f6
[ 5652.594424][   T73] 
[ 5652.596253][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5652.596253][   T73]      netdev_get_by_index+0x5e/0x80
[ 5652.596253][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5652.596253][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5652.596253][   T73]      ip6_route_add+0x1c/0x140
[ 5652.596253][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5652.596253][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5652.596253][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5652.596253][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5652.596253][   T73]      netlink_rcv_skb+0x130/0x360
[ 5652.596253][   T73]      netlink_unicast+0x449/0x710
[ 5652.596253][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5652.596253][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5652.596253][   T73]      ___sys_sendmsg+0xee/0x170
[ 5652.596253][   T73]      __sys_sendmsg+0xcd/0x170
[ 5652.596253][   T73]      do_syscall_64+0xc6/0x1e0
[ 5652.596253][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5652.596253][   T73] 
[ 5652.598518][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5652.598518][   T73]      netdev_get_by_index+0x5e/0x80
[ 5652.598518][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5652.598518][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5652.598518][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5652.598518][   T73]      ipv6_add_addr+0x411/0x2000
[ 5652.598518][   T73]      inet6_addr_add+0x30e/0xa40
[ 5652.598518][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5652.598518][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5652.598518][   T73]      netlink_rcv_skb+0x130/0x360
[ 5652.598518][   T73]      netlink_unicast+0x449/0x710
[ 5652.598518][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5652.598518][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5652.598518][   T73]      ___sys_sendmsg+0xee/0x170
[ 5652.598518][   T73]      __sys_sendmsg+0xcd/0x170
[ 5652.598518][   T73]      do_syscall_64+0xc6/0x1e0
[ 5652.598518][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5652.598518][   T73] 
[ 5652.600752][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5652.600752][   T73]      netdev_get_by_index+0x5e/0x80
[ 5652.600752][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5652.600752][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5652.600752][   T73]      ip6_route_add+0x1c/0x140
[ 5652.600752][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5652.600752][   T73]      addrconf_add_dev+0xe2/0x170
[ 5652.600752][   T73]      inet6_addr_add+0x12f/0xa40
[ 5652.600752][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5652.600752][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5652.600752][   T73]      netlink_rcv_skb+0x130/0x360
[ 5652.600752][   T73]      netlink_unicast+0x449/0x710
[ 5652.600752][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5652.600752][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5652.600752][   T73]      ___sys_sendmsg+0xee/0x170
[ 5652.600752][   T73]      __sys_sendmsg+0xcd/0x170
[ 5652.600752][   T73]      do_syscall_64+0xc6/0x1e0
[ 5652.600752][   T73] 
[ 5652.602968][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5652.602968][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5652.602968][   T73]      ipv6_find_idev+0x102/0x170
[ 5652.602968][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5652.602968][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5652.602968][   T73]      netlink_rcv_skb+0x130/0x360
[ 5652.602968][   T73]      netlink_unicast+0x449/0x710
[ 5652.602968][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5652.602968][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5652.602968][   T73]      ___sys_sendmsg+0xee/0x170
[ 5652.602968][   T73]      __sys_sendmsg+0xcd/0x170
[ 5652.602968][   T73]      do_syscall_64+0xc6/0x1e0
[ 5652.602968][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5652.602968][   T73] 
[ 5652.604702][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5652.604702][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5652.604702][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5652.604702][   T73]      ipv6_find_idev+0x102/0x170
[ 5652.604702][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5652.604702][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5652.604702][   T73]      netlink_rcv_skb+0x130/0x360
[ 5652.604702][   T73]      netlink_unicast+0x449/0x710
[ 5652.604702][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5652.604702][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5652.604702][   T73]      ___sys_sendmsg+0xee/0x170
[ 5652.604702][   T73]      __sys_sendmsg+0xcd/0x170
[ 5652.604702][   T73]      do_syscall_64+0xc6/0x1e0
[ 5652.604702][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5652.604702][   T73] 
[ 5652.606606][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5652.606920][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5652.606920][   T73]      netdev_get_by_index+0x5e/0x80
[ 5652.606920][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5652.606920][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5652.606920][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5652.606920][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5652.606920][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5652.606920][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5652.606920][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5652.606920][   T73]      addrconf_dad_begin+0x310/0x670
[ 5652.606920][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5652.606920][   T73]      process_one_work+0x84d/0x18a0
[ 5652.606920][   T73]      worker_thread+0x587/0xd30
[ 5652.606920][   T73]      kthread+0x28a/0x350
[ 5652.606920][   T73]      ret_from_fork+0x31/0x70
[ 5652.606920][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5652.606920][   T73] 
[ 5652.609057][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5652.609057][   T73]      netdev_get_by_index+0x5e/0x80
[ 5652.609057][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5652.609057][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5652.609057][   T73]      ip6_route_add+0x1c/0x140
[ 5652.609057][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5652.609057][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5652.609057][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5652.609057][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5652.609057][   T73]      netlink_rcv_skb+0x130/0x360
[ 5652.609057][   T73]      netlink_unicast+0x449/0x710
[ 5652.609057][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5652.609057][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5652.609057][   T73]      ___sys_sendmsg+0xee/0x170
[ 5652.609057][   T73]      __sys_sendmsg+0xcd/0x170
[ 5652.609057][   T73]      do_syscall_64+0xc6/0x1e0
[ 5652.609057][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5652.609057][   T73] 
[ 5652.611313][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5652.611313][   T73]      netdev_get_by_index+0x5e/0x80
[ 5652.611313][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5652.611313][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5652.611313][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5652.611313][   T73]      ipv6_add_addr+0x411/0x2000
[ 5652.611313][   T73]      inet6_addr_add+0x30e/0xa40
[ 5652.611313][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5652.611313][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5652.611313][   T73]      netlink_rcv_skb+0x130/0x360
[ 5652.611313][   T73]      netlink_unicast+0x449/0x710
[ 5652.611313][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5652.611313][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5652.611313][   T73]      ___sys_sendmsg+0xee/0x170
[ 5652.611313][   T73]      __sys_sendmsg+0xcd/0x170
[ 5652.611313][   T73]      do_syscall_64+0xc6/0x1e0
[ 5652.611313][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5652.611313][   T73] 
[ 5652.613566][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5652.613566][   T73]      netdev_get_by_index+0x5e/0x80
[ 5652.613566][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5652.613566][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5652.613566][   T73]      ip6_route_add+0x1c/0x140
[ 5652.613566][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5652.613566][   T73]      addrconf_add_dev+0xe2/0x170
[ 5652.613566][   T73]      inet6_addr_add+0x12f/0xa40
[ 5652.613566][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5652.613566][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5652.613566][   T73]      netlink_rcv_skb+0x130/0x360
[ 5652.613566][   T73]      netlink_unicast+0x449/0x710
[ 5652.613566][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5652.613566][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5652.613566][   T73]      ___sys_sendmsg+0xee/0x170
[ 5652.613566][   T73]      __sys_sendmsg+0xcd/0x170
[ 5652.613566][   T73]      do_syscall_64+0xc6/0x1e0
[ 5652.613566][   T73] 
[ 5652.615769][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5652.615769][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5652.615769][   T73]      ipv6_find_idev+0x102/0x170
[ 5652.615769][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5652.615769][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5652.615769][   T73]      netlink_rcv_skb+0x130/0x360
[ 5652.615769][   T73]      netlink_unicast+0x449/0x710
[ 5652.615769][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5652.615769][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5652.615769][   T73]      ___sys_sendmsg+0xee/0x170
[ 5652.615769][   T73]      __sys_sendmsg+0xcd/0x170
[ 5652.615769][   T73]      do_syscall_64+0xc6/0x1e0
[ 5652.615769][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5652.615769][   T73] 
[ 5652.617494][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5652.617494][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5652.617494][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5652.617494][   T73]      ipv6_find_idev+0x102/0x170
[ 5652.617494][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5652.617494][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5652.617494][   T73]      netlink_rcv_skb+0x130/0x360
[ 5652.617494][   T73]      netlink_unicast+0x449/0x710
[ 5652.617494][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5652.617494][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5652.617494][   T73]      ___sys_sendmsg+0xee/0x170
[ 5652.617494][   T73]      __sys_sendmsg+0xcd/0x170
[ 5652.617494][   T73]      do_syscall_64+0xc6/0x1e0
[ 5652.617494][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5652.617494][   T73] 
[ 5652.619402][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5652.619708][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5652.619708][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5652.619708][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5652.619708][   T73]      fib6_nh_init+0xa22/0x1580
[ 5652.619708][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5652.619708][   T73]      ip6_route_add+0x1c/0x140
[ 5652.619708][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5652.619708][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5652.619708][   T73]      netlink_rcv_skb+0x130/0x360
[ 5652.619708][   T73]      netlink_unicast+0x449/0x710
[ 5652.619708][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5652.619708][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5652.619708][   T73]      ___sys_sendmsg+0xee/0x170
[ 5652.619708][   T73]      __sys_sendmsg+0xcd/0x170
[ 5652.619708][   T73]      do_syscall_64+0xc6/0x1e0
[ 5652.619708][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5652.619708][   T73] 
[ 5652.622005][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5652.622005][   T73]      dst_init+0x84/0x4a0
[ 5652.622005][   T73]      dst_alloc+0x97/0x150
[ 5652.622005][   T73]      ip6_dst_alloc+0x23/0x90
[ 5652.622005][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5652.622005][   T73]      ip6_pol_route+0x56f/0x840
[ 5652.622005][   T73]      fib6_rule_lookup+0x456/0x630
[ 5652.622005][   T73]      ip6_route_input+0x59c/0xa50
[ 5652.622005][   T73]      ipv6_rcv+0x397/0x810
[ 5652.622005][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5652.622005][   T73]      process_backlog+0x101/0x620
[ 5652.622005][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5652.622005][   T73]      net_rx_action+0x495/0xbe0
[ 5652.622005][   T73]      __do_softirq+0x1b5/0x7f6
[ 5652.622005][   T73] 
[ 5652.624105][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5652.624105][   T73]      netdev_get_by_index+0x5e/0x80
[ 5652.624105][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5652.624105][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5652.624105][   T73]      ip6_route_add+0x1c/0x140
[ 5652.624105][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5652.624105][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5652.624105][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5652.624105][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5652.624105][   T73]      netlink_rcv_skb+0x130/0x360
[ 5652.624105][   T73]      netlink_unicast+0x449/0x710
[ 5652.624105][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5652.624105][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5652.624105][   T73]      ___sys_sendmsg+0xee/0x170
[ 5652.624105][   T73]      __sys_sendmsg+0xcd/0x170
[ 5652.624105][   T73]      do_syscall_64+0xc6/0x1e0
[ 5652.624105][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5652.624105][   T73] 
[ 5652.626592][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5652.626592][   T73]      netdev_get_by_index+0x5e/0x80
[ 5652.626592][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5652.626592][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5652.626592][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5652.626592][   T73]      ipv6_add_addr+0x411/0x2000
[ 5652.626592][   T73]      inet6_addr_add+0x30e/0xa40
[ 5652.626592][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5652.626592][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5652.626592][   T73]      netlink_rcv_skb+0x130/0x360
[ 5652.626592][   T73]      netlink_unicast+0x449/0x710
[ 5652.626592][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5652.626592][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5652.626592][   T73]      ___sys_sendmsg+0xee/0x170
[ 5652.626592][   T73]      __sys_sendmsg+0xcd/0x170
[ 5652.626592][   T73]      do_syscall_64+0xc6/0x1e0
[ 5652.626592][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5652.626592][   T73] 
[ 5652.629013][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5652.629013][   T73]      netdev_get_by_index+0x5e/0x80
[ 5652.629013][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5652.629013][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5652.629013][   T73]      ip6_route_add+0x1c/0x140
[ 5652.629013][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5652.629013][   T73]      addrconf_add_dev+0xe2/0x170
[ 5652.629013][   T73]      inet6_addr_add+0x12f/0xa40
[ 5652.629013][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5652.629013][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5652.629013][   T73]      netlink_rcv_skb+0x130/0x360
[ 5652.629013][   T73]      netlink_unicast+0x449/0x710
[ 5652.629013][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5652.629013][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5652.629013][   T73]      ___sys_sendmsg+0xee/0x170
[ 5652.629013][   T73]      __sys_sendmsg+0xcd/0x170
[ 5652.629013][   T73]      do_syscall_64+0xc6/0x1e0
[ 5652.629013][   T73] 
[ 5652.631537][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5652.631537][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5652.631537][   T73]      ipv6_find_idev+0x102/0x170
[ 5652.631537][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5652.631537][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5652.631537][   T73]      netlink_rcv_skb+0x130/0x360
[ 5652.631537][   T73]      netlink_unicast+0x449/0x710
[ 5652.631537][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5652.631537][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5652.631537][   T73]      ___sys_sendmsg+0xee/0x170
[ 5652.631537][   T73]      __sys_sendmsg+0xcd/0x170
[ 5652.631537][   T73]      do_syscall_64+0xc6/0x1e0
[ 5652.631537][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5652.631537][   T73] 
[ 5652.633461][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5652.633461][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5652.633461][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5652.633461][   T73]      ipv6_find_idev+0x102/0x170
[ 5652.633461][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5652.633461][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5652.633461][   T73]      netlink_rcv_skb+0x130/0x360
[ 5652.633461][   T73]      netlink_unicast+0x449/0x710
[ 5652.633461][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5652.633461][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5652.633461][   T73]      ___sys_sendmsg+0xee/0x170
[ 5652.633461][   T73]      __sys_sendmsg+0xcd/0x170
[ 5652.633461][   T73]      do_syscall_64+0xc6/0x1e0
[ 5652.633461][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5652.633461][   T73] 
[ 5652.635581][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5652.636394][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5652.636394][   T73]      netdev_get_by_index+0x5e/0x80
[ 5652.636394][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5652.636394][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5652.636394][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5652.636394][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5652.636394][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5652.636394][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5652.636394][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5652.636394][   T73]      addrconf_dad_begin+0x310/0x670
[ 5652.636394][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5652.636394][   T73]      process_one_work+0x84d/0x18a0
[ 5652.636394][   T73]      worker_thread+0x587/0xd30
[ 5652.636394][   T73]      kthread+0x28a/0x350
[ 5652.636394][   T73]      ret_from_fork+0x31/0x70
[ 5652.636394][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5652.636394][   T73] 
[ 5652.638561][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5652.638561][   T73]      netdev_get_by_index+0x5e/0x80
[ 5652.638561][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5652.638561][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5652.638561][   T73]      ip6_route_add+0x1c/0x140
[ 5652.638561][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5652.638561][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5652.638561][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5652.638561][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5652.638561][   T73]      netlink_rcv_skb+0x130/0x360
[ 5652.638561][   T73]      netlink_unicast+0x449/0x710
[ 5652.638561][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5652.638561][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5652.638561][   T73]      ___sys_sendmsg+0xee/0x170
[ 5652.638561][   T73]      __sys_sendmsg+0xcd/0x170
[ 5652.638561][   T73]      do_syscall_64+0xc6/0x1e0
[ 5652.638561][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5652.638561][   T73] 
[ 5652.640795][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5652.640795][   T73]      netdev_get_by_index+0x5e/0x80
[ 5652.640795][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5652.640795][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5652.640795][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5652.640795][   T73]      ipv6_add_addr+0x411/0x2000
[ 5652.640795][   T73]      inet6_addr_add+0x30e/0xa40
[ 5652.640795][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5652.640795][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5652.640795][   T73]      netlink_rcv_skb+0x130/0x360
[ 5652.640795][   T73]      netlink_unicast+0x449/0x710
[ 5652.640795][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5652.640795][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5652.640795][   T73]      ___sys_sendmsg+0xee/0x170
[ 5652.640795][   T73]      __sys_sendmsg+0xcd/0x170
[ 5652.640795][   T73]      do_syscall_64+0xc6/0x1e0
[ 5652.640795][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5652.640795][   T73] 
[ 5652.643264][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5652.643264][   T73]      netdev_get_by_index+0x5e/0x80
[ 5652.643264][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5652.643264][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5652.643264][   T73]      ip6_route_add+0x1c/0x140
[ 5652.643264][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5652.643264][   T73]      addrconf_add_dev+0xe2/0x170
[ 5652.643264][   T73]      inet6_addr_add+0x12f/0xa40
[ 5652.643264][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5652.643264][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5652.643264][   T73]      netlink_rcv_skb+0x130/0x360
[ 5652.643264][   T73]      netlink_unicast+0x449/0x710
[ 5652.643264][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5652.643264][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5652.643264][   T73]      ___sys_sendmsg+0xee/0x170
[ 5652.643264][   T73]      __sys_sendmsg+0xcd/0x170
[ 5652.643264][   T73]      do_syscall_64+0xc6/0x1e0
[ 5652.643264][   T73] 
[ 5652.645695][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5652.645695][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5652.645695][   T73]      ipv6_find_idev+0x102/0x170
[ 5652.645695][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5652.645695][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5652.645695][   T73]      netlink_rcv_skb+0x130/0x360
[ 5652.645695][   T73]      netlink_unicast+0x449/0x710
[ 5652.645695][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5652.645695][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5652.645695][   T73]      ___sys_sendmsg+0xee/0x170
[ 5652.645695][   T73]      __sys_sendmsg+0xcd/0x170
[ 5652.645695][   T73]      do_syscall_64+0xc6/0x1e0
[ 5652.645695][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5652.645695][   T73] 
[ 5652.647608][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5652.647608][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5652.647608][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5652.647608][   T73]      ipv6_find_idev+0x102/0x170
[ 5652.647608][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5652.647608][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5652.647608][   T73]      netlink_rcv_skb+0x130/0x360
[ 5652.647608][   T73]      netlink_unicast+0x449/0x710
[ 5652.647608][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5652.647608][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5652.647608][   T73]      ___sys_sendmsg+0xee/0x170
[ 5652.647608][   T73]      __sys_sendmsg+0xcd/0x170
[ 5652.647608][   T73]      do_syscall_64+0xc6/0x1e0
[ 5652.647608][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5652.647608][   T73] 
[ 5662.887724][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5662.888240][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5662.888240][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5662.888240][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5662.888240][   T73]      fib6_nh_init+0xa22/0x1580
[ 5662.888240][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5662.888240][   T73]      ip6_route_add+0x1c/0x140
[ 5662.888240][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5662.888240][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5662.888240][   T73]      netlink_rcv_skb+0x130/0x360
[ 5662.888240][   T73]      netlink_unicast+0x449/0x710
[ 5662.888240][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5662.888240][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5662.888240][   T73]      ___sys_sendmsg+0xee/0x170
[ 5662.888240][   T73]      __sys_sendmsg+0xcd/0x170
[ 5662.888240][   T73]      do_syscall_64+0xc6/0x1e0
[ 5662.888240][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5662.888240][   T73] 
[ 5662.890337][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5662.890337][   T73]      dst_init+0x84/0x4a0
[ 5662.890337][   T73]      dst_alloc+0x97/0x150
[ 5662.890337][   T73]      ip6_dst_alloc+0x23/0x90
[ 5662.890337][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5662.890337][   T73]      ip6_pol_route+0x56f/0x840
[ 5662.890337][   T73]      fib6_rule_lookup+0x456/0x630
[ 5662.890337][   T73]      ip6_route_input+0x59c/0xa50
[ 5662.890337][   T73]      ipv6_rcv+0x397/0x810
[ 5662.890337][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5662.890337][   T73]      process_backlog+0x101/0x620
[ 5662.890337][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5662.890337][   T73]      net_rx_action+0x495/0xbe0
[ 5662.890337][   T73]      __do_softirq+0x1b5/0x7f6
[ 5662.890337][   T73] 
[ 5662.892172][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5662.892172][   T73]      netdev_get_by_index+0x5e/0x80
[ 5662.892172][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5662.892172][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5662.892172][   T73]      ip6_route_add+0x1c/0x140
[ 5662.892172][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5662.892172][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5662.892172][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5662.892172][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5662.892172][   T73]      netlink_rcv_skb+0x130/0x360
[ 5662.892172][   T73]      netlink_unicast+0x449/0x710
[ 5662.892172][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5662.892172][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5662.892172][   T73]      ___sys_sendmsg+0xee/0x170
[ 5662.892172][   T73]      __sys_sendmsg+0xcd/0x170
[ 5662.892172][   T73]      do_syscall_64+0xc6/0x1e0
[ 5662.892172][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5662.892172][   T73] 
[ 5662.894404][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5662.894404][   T73]      netdev_get_by_index+0x5e/0x80
[ 5662.894404][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5662.894404][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5662.894404][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5662.894404][   T73]      ipv6_add_addr+0x411/0x2000
[ 5662.894404][   T73]      inet6_addr_add+0x30e/0xa40
[ 5662.894404][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5662.894404][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5662.894404][   T73]      netlink_rcv_skb+0x130/0x360
[ 5662.894404][   T73]      netlink_unicast+0x449/0x710
[ 5662.894404][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5662.894404][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5662.894404][   T73]      ___sys_sendmsg+0xee/0x170
[ 5662.894404][   T73]      __sys_sendmsg+0xcd/0x170
[ 5662.894404][   T73]      do_syscall_64+0xc6/0x1e0
[ 5662.894404][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5662.894404][   T73] 
[ 5662.896667][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5662.896667][   T73]      netdev_get_by_index+0x5e/0x80
[ 5662.896667][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5662.896667][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5662.896667][   T73]      ip6_route_add+0x1c/0x140
[ 5662.896667][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5662.896667][   T73]      addrconf_add_dev+0xe2/0x170
[ 5662.896667][   T73]      inet6_addr_add+0x12f/0xa40
[ 5662.896667][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5662.896667][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5662.896667][   T73]      netlink_rcv_skb+0x130/0x360
[ 5662.896667][   T73]      netlink_unicast+0x449/0x710
[ 5662.896667][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5662.896667][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5662.896667][   T73]      ___sys_sendmsg+0xee/0x170
[ 5662.896667][   T73]      __sys_sendmsg+0xcd/0x170
[ 5662.896667][   T73]      do_syscall_64+0xc6/0x1e0
[ 5662.896667][   T73] 
[ 5662.898868][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5662.898868][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5662.898868][   T73]      ipv6_find_idev+0x102/0x170
[ 5662.898868][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5662.898868][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5662.898868][   T73]      netlink_rcv_skb+0x130/0x360
[ 5662.898868][   T73]      netlink_unicast+0x449/0x710
[ 5662.898868][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5662.898868][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5662.898868][   T73]      ___sys_sendmsg+0xee/0x170
[ 5662.898868][   T73]      __sys_sendmsg+0xcd/0x170
[ 5662.898868][   T73]      do_syscall_64+0xc6/0x1e0
[ 5662.898868][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5662.898868][   T73] 
[ 5662.900576][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5662.900576][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5662.900576][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5662.900576][   T73]      ipv6_find_idev+0x102/0x170
[ 5662.900576][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5662.900576][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5662.900576][   T73]      netlink_rcv_skb+0x130/0x360
[ 5662.900576][   T73]      netlink_unicast+0x449/0x710
[ 5662.900576][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5662.900576][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5662.900576][   T73]      ___sys_sendmsg+0xee/0x170
[ 5662.900576][   T73]      __sys_sendmsg+0xcd/0x170
[ 5662.900576][   T73]      do_syscall_64+0xc6/0x1e0
[ 5662.900576][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5662.900576][   T73] 
[ 5662.902462][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5662.902781][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5662.902781][   T73]      netdev_get_by_index+0x5e/0x80
[ 5662.902781][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5662.902781][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5662.902781][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5662.902781][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5662.902781][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5662.902781][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5662.902781][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5662.902781][   T73]      addrconf_dad_begin+0x310/0x670
[ 5662.902781][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5662.902781][   T73]      process_one_work+0x84d/0x18a0
[ 5662.902781][   T73]      worker_thread+0x587/0xd30
[ 5662.902781][   T73]      kthread+0x28a/0x350
[ 5662.902781][   T73]      ret_from_fork+0x31/0x70
[ 5662.902781][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5662.902781][   T73] 
[ 5662.904917][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5662.904917][   T73]      netdev_get_by_index+0x5e/0x80
[ 5662.904917][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5662.904917][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5662.904917][   T73]      ip6_route_add+0x1c/0x140
[ 5662.904917][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5662.904917][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5662.904917][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5662.904917][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5662.904917][   T73]      netlink_rcv_skb+0x130/0x360
[ 5662.904917][   T73]      netlink_unicast+0x449/0x710
[ 5662.904917][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5662.904917][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5662.904917][   T73]      ___sys_sendmsg+0xee/0x170
[ 5662.904917][   T73]      __sys_sendmsg+0xcd/0x170
[ 5662.904917][   T73]      do_syscall_64+0xc6/0x1e0
[ 5662.904917][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5662.904917][   T73] 
[ 5662.907144][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5662.907144][   T73]      netdev_get_by_index+0x5e/0x80
[ 5662.907144][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5662.907144][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5662.907144][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5662.907144][   T73]      ipv6_add_addr+0x411/0x2000
[ 5662.907144][   T73]      inet6_addr_add+0x30e/0xa40
[ 5662.907144][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5662.907144][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5662.907144][   T73]      netlink_rcv_skb+0x130/0x360
[ 5662.907144][   T73]      netlink_unicast+0x449/0x710
[ 5662.907144][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5662.907144][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5662.907144][   T73]      ___sys_sendmsg+0xee/0x170
[ 5662.907144][   T73]      __sys_sendmsg+0xcd/0x170
[ 5662.907144][   T73]      do_syscall_64+0xc6/0x1e0
[ 5662.907144][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5662.907144][   T73] 
[ 5662.909372][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5662.909372][   T73]      netdev_get_by_index+0x5e/0x80
[ 5662.909372][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5662.909372][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5662.909372][   T73]      ip6_route_add+0x1c/0x140
[ 5662.909372][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5662.909372][   T73]      addrconf_add_dev+0xe2/0x170
[ 5662.909372][   T73]      inet6_addr_add+0x12f/0xa40
[ 5662.909372][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5662.909372][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5662.909372][   T73]      netlink_rcv_skb+0x130/0x360
[ 5662.909372][   T73]      netlink_unicast+0x449/0x710
[ 5662.909372][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5662.909372][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5662.909372][   T73]      ___sys_sendmsg+0xee/0x170
[ 5662.909372][   T73]      __sys_sendmsg+0xcd/0x170
[ 5662.909372][   T73]      do_syscall_64+0xc6/0x1e0
[ 5662.909372][   T73] 
[ 5662.911567][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5662.911567][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5662.911567][   T73]      ipv6_find_idev+0x102/0x170
[ 5662.911567][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5662.911567][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5662.911567][   T73]      netlink_rcv_skb+0x130/0x360
[ 5662.911567][   T73]      netlink_unicast+0x449/0x710
[ 5662.911567][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5662.911567][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5662.911567][   T73]      ___sys_sendmsg+0xee/0x170
[ 5662.911567][   T73]      __sys_sendmsg+0xcd/0x170
[ 5662.911567][   T73]      do_syscall_64+0xc6/0x1e0
[ 5662.911567][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5662.911567][   T73] 
[ 5662.913272][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5662.913272][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5662.913272][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5662.913272][   T73]      ipv6_find_idev+0x102/0x170
[ 5662.913272][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5662.913272][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5662.913272][   T73]      netlink_rcv_skb+0x130/0x360
[ 5662.913272][   T73]      netlink_unicast+0x449/0x710
[ 5662.913272][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5662.913272][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5662.913272][   T73]      ___sys_sendmsg+0xee/0x170
[ 5662.913272][   T73]      __sys_sendmsg+0xcd/0x170
[ 5662.913272][   T73]      do_syscall_64+0xc6/0x1e0
[ 5662.913272][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5662.913272][   T73] 
[ 5662.915140][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5662.915428][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5662.915428][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5662.915428][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5662.915428][   T73]      fib6_nh_init+0xa22/0x1580
[ 5662.915428][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5662.915428][   T73]      ip6_route_add+0x1c/0x140
[ 5662.915428][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5662.915428][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5662.915428][   T73]      netlink_rcv_skb+0x130/0x360
[ 5662.915428][   T73]      netlink_unicast+0x449/0x710
[ 5662.915428][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5662.915428][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5662.915428][   T73]      ___sys_sendmsg+0xee/0x170
[ 5662.915428][   T73]      __sys_sendmsg+0xcd/0x170
[ 5662.915428][   T73]      do_syscall_64+0xc6/0x1e0
[ 5662.915428][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5662.915428][   T73] 
[ 5662.917598][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5662.917598][   T73]      dst_init+0x84/0x4a0
[ 5662.917598][   T73]      dst_alloc+0x97/0x150
[ 5662.917598][   T73]      ip6_dst_alloc+0x23/0x90
[ 5662.917598][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5662.917598][   T73]      ip6_pol_route+0x56f/0x840
[ 5662.917598][   T73]      fib6_rule_lookup+0x456/0x630
[ 5662.917598][   T73]      ip6_route_input+0x59c/0xa50
[ 5662.917598][   T73]      ipv6_rcv+0x397/0x810
[ 5662.917598][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5662.917598][   T73]      process_backlog+0x101/0x620
[ 5662.917598][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5662.917598][   T73]      net_rx_action+0x495/0xbe0
[ 5662.917598][   T73]      __do_softirq+0x1b5/0x7f6
[ 5662.917598][   T73] 
[ 5662.919510][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5662.919510][   T73]      netdev_get_by_index+0x5e/0x80
[ 5662.919510][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5662.919510][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5662.919510][   T73]      ip6_route_add+0x1c/0x140
[ 5662.919510][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5662.919510][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5662.919510][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5662.919510][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5662.919510][   T73]      netlink_rcv_skb+0x130/0x360
[ 5662.919510][   T73]      netlink_unicast+0x449/0x710
[ 5662.919510][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5662.919510][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5662.919510][   T73]      ___sys_sendmsg+0xee/0x170
[ 5662.919510][   T73]      __sys_sendmsg+0xcd/0x170
[ 5662.919510][   T73]      do_syscall_64+0xc6/0x1e0
[ 5662.919510][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5662.919510][   T73] 
[ 5662.921876][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5662.921876][   T73]      netdev_get_by_index+0x5e/0x80
[ 5662.921876][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5662.921876][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5662.921876][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5662.921876][   T73]      ipv6_add_addr+0x411/0x2000
[ 5662.921876][   T73]      inet6_addr_add+0x30e/0xa40
[ 5662.921876][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5662.921876][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5662.921876][   T73]      netlink_rcv_skb+0x130/0x360
[ 5662.921876][   T73]      netlink_unicast+0x449/0x710
[ 5662.921876][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5662.921876][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5662.921876][   T73]      ___sys_sendmsg+0xee/0x170
[ 5662.921876][   T73]      __sys_sendmsg+0xcd/0x170
[ 5662.921876][   T73]      do_syscall_64+0xc6/0x1e0
[ 5662.921876][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5662.921876][   T73] 
[ 5662.924176][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5662.924176][   T73]      netdev_get_by_index+0x5e/0x80
[ 5662.924176][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5662.924176][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5662.924176][   T73]      ip6_route_add+0x1c/0x140
[ 5662.924176][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5662.924176][   T73]      addrconf_add_dev+0xe2/0x170
[ 5662.924176][   T73]      inet6_addr_add+0x12f/0xa40
[ 5662.924176][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5662.924176][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5662.924176][   T73]      netlink_rcv_skb+0x130/0x360
[ 5662.924176][   T73]      netlink_unicast+0x449/0x710
[ 5662.924176][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5662.924176][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5662.924176][   T73]      ___sys_sendmsg+0xee/0x170
[ 5662.924176][   T73]      __sys_sendmsg+0xcd/0x170
[ 5662.924176][   T73]      do_syscall_64+0xc6/0x1e0
[ 5662.924176][   T73] 
[ 5662.926455][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5662.926455][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5662.926455][   T73]      ipv6_find_idev+0x102/0x170
[ 5662.926455][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5662.926455][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5662.926455][   T73]      netlink_rcv_skb+0x130/0x360
[ 5662.926455][   T73]      netlink_unicast+0x449/0x710
[ 5662.926455][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5662.926455][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5662.926455][   T73]      ___sys_sendmsg+0xee/0x170
[ 5662.926455][   T73]      __sys_sendmsg+0xcd/0x170
[ 5662.926455][   T73]      do_syscall_64+0xc6/0x1e0
[ 5662.926455][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5662.926455][   T73] 
[ 5662.928256][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5662.928256][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5662.928256][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5662.928256][   T73]      ipv6_find_idev+0x102/0x170
[ 5662.928256][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5662.928256][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5662.928256][   T73]      netlink_rcv_skb+0x130/0x360
[ 5662.928256][   T73]      netlink_unicast+0x449/0x710
[ 5662.928256][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5662.928256][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5662.928256][   T73]      ___sys_sendmsg+0xee/0x170
[ 5662.928256][   T73]      __sys_sendmsg+0xcd/0x170
[ 5662.928256][   T73]      do_syscall_64+0xc6/0x1e0
[ 5662.928256][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5662.928256][   T73] 
[ 5662.930210][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5662.930598][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5662.930598][   T73]      netdev_get_by_index+0x5e/0x80
[ 5662.930598][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5662.930598][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5662.930598][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5662.930598][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5662.930598][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5662.930598][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5662.930598][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5662.930598][   T73]      addrconf_dad_begin+0x310/0x670
[ 5662.930598][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5662.930598][   T73]      process_one_work+0x84d/0x18a0
[ 5662.930598][   T73]      worker_thread+0x587/0xd30
[ 5662.930598][   T73]      kthread+0x28a/0x350
[ 5662.930598][   T73]      ret_from_fork+0x31/0x70
[ 5662.930598][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5662.930598][   T73] 
[ 5662.932741][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5662.932741][   T73]      netdev_get_by_index+0x5e/0x80
[ 5662.932741][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5662.932741][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5662.932741][   T73]      ip6_route_add+0x1c/0x140
[ 5662.932741][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5662.932741][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5662.932741][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5662.932741][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5662.932741][   T73]      netlink_rcv_skb+0x130/0x360
[ 5662.932741][   T73]      netlink_unicast+0x449/0x710
[ 5662.932741][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5662.932741][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5662.932741][   T73]      ___sys_sendmsg+0xee/0x170
[ 5662.932741][   T73]      __sys_sendmsg+0xcd/0x170
[ 5662.932741][   T73]      do_syscall_64+0xc6/0x1e0
[ 5662.932741][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5662.932741][   T73] 
[ 5662.935118][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5662.935118][   T73]      netdev_get_by_index+0x5e/0x80
[ 5662.935118][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5662.935118][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5662.935118][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5662.935118][   T73]      ipv6_add_addr+0x411/0x2000
[ 5662.935118][   T73]      inet6_addr_add+0x30e/0xa40
[ 5662.935118][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5662.935118][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5662.935118][   T73]      netlink_rcv_skb+0x130/0x360
[ 5662.935118][   T73]      netlink_unicast+0x449/0x710
[ 5662.935118][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5662.935118][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5662.935118][   T73]      ___sys_sendmsg+0xee/0x170
[ 5662.935118][   T73]      __sys_sendmsg+0xcd/0x170
[ 5662.935118][   T73]      do_syscall_64+0xc6/0x1e0
[ 5662.935118][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5662.935118][   T73] 
[ 5662.937449][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5662.937449][   T73]      netdev_get_by_index+0x5e/0x80
[ 5662.937449][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5662.937449][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5662.937449][   T73]      ip6_route_add+0x1c/0x140
[ 5662.937449][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5662.937449][   T73]      addrconf_add_dev+0xe2/0x170
[ 5662.937449][   T73]      inet6_addr_add+0x12f/0xa40
[ 5662.937449][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5662.937449][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5662.937449][   T73]      netlink_rcv_skb+0x130/0x360
[ 5662.937449][   T73]      netlink_unicast+0x449/0x710
[ 5662.937449][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5662.937449][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5662.937449][   T73]      ___sys_sendmsg+0xee/0x170
[ 5662.937449][   T73]      __sys_sendmsg+0xcd/0x170
[ 5662.937449][   T73]      do_syscall_64+0xc6/0x1e0
[ 5662.937449][   T73] 
[ 5662.939817][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5662.939817][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5662.939817][   T73]      ipv6_find_idev+0x102/0x170
[ 5662.939817][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5662.939817][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5662.939817][   T73]      netlink_rcv_skb+0x130/0x360
[ 5662.939817][   T73]      netlink_unicast+0x449/0x710
[ 5662.939817][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5662.939817][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5662.939817][   T73]      ___sys_sendmsg+0xee/0x170
[ 5662.939817][   T73]      __sys_sendmsg+0xcd/0x170
[ 5662.939817][   T73]      do_syscall_64+0xc6/0x1e0
[ 5662.939817][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5662.939817][   T73] 
[ 5662.941651][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5662.941651][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5662.941651][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5662.941651][   T73]      ipv6_find_idev+0x102/0x170
[ 5662.941651][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5662.941651][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5662.941651][   T73]      netlink_rcv_skb+0x130/0x360
[ 5662.941651][   T73]      netlink_unicast+0x449/0x710
[ 5662.941651][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5662.941651][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5662.941651][   T73]      ___sys_sendmsg+0xee/0x170
[ 5662.941651][   T73]      __sys_sendmsg+0xcd/0x170
[ 5662.941651][   T73]      do_syscall_64+0xc6/0x1e0
[ 5662.941651][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5662.941651][   T73] 
[ 5673.183793][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5673.184325][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5673.184325][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5673.184325][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5673.184325][   T73]      fib6_nh_init+0xa22/0x1580
[ 5673.184325][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5673.184325][   T73]      ip6_route_add+0x1c/0x140
[ 5673.184325][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5673.184325][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5673.184325][   T73]      netlink_rcv_skb+0x130/0x360
[ 5673.184325][   T73]      netlink_unicast+0x449/0x710
[ 5673.184325][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5673.184325][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5673.184325][   T73]      ___sys_sendmsg+0xee/0x170
[ 5673.184325][   T73]      __sys_sendmsg+0xcd/0x170
[ 5673.184325][   T73]      do_syscall_64+0xc6/0x1e0
[ 5673.184325][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5673.184325][   T73] 
[ 5673.186437][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5673.186437][   T73]      dst_init+0x84/0x4a0
[ 5673.186437][   T73]      dst_alloc+0x97/0x150
[ 5673.186437][   T73]      ip6_dst_alloc+0x23/0x90
[ 5673.186437][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5673.186437][   T73]      ip6_pol_route+0x56f/0x840
[ 5673.186437][   T73]      fib6_rule_lookup+0x456/0x630
[ 5673.186437][   T73]      ip6_route_input+0x59c/0xa50
[ 5673.186437][   T73]      ipv6_rcv+0x397/0x810
[ 5673.186437][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5673.186437][   T73]      process_backlog+0x101/0x620
[ 5673.186437][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5673.186437][   T73]      net_rx_action+0x495/0xbe0
[ 5673.186437][   T73]      __do_softirq+0x1b5/0x7f6
[ 5673.186437][   T73] 
[ 5673.188399][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5673.188399][   T73]      netdev_get_by_index+0x5e/0x80
[ 5673.188399][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5673.188399][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5673.188399][   T73]      ip6_route_add+0x1c/0x140
[ 5673.188399][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5673.188399][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5673.188399][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5673.188399][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5673.188399][   T73]      netlink_rcv_skb+0x130/0x360
[ 5673.188399][   T73]      netlink_unicast+0x449/0x710
[ 5673.188399][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5673.188399][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5673.188399][   T73]      ___sys_sendmsg+0xee/0x170
[ 5673.188399][   T73]      __sys_sendmsg+0xcd/0x170
[ 5673.188399][   T73]      do_syscall_64+0xc6/0x1e0
[ 5673.188399][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5673.188399][   T73] 
[ 5673.190646][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5673.190646][   T73]      netdev_get_by_index+0x5e/0x80
[ 5673.190646][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5673.190646][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5673.190646][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5673.190646][   T73]      ipv6_add_addr+0x411/0x2000
[ 5673.190646][   T73]      inet6_addr_add+0x30e/0xa40
[ 5673.190646][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5673.190646][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5673.190646][   T73]      netlink_rcv_skb+0x130/0x360
[ 5673.190646][   T73]      netlink_unicast+0x449/0x710
[ 5673.190646][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5673.190646][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5673.190646][   T73]      ___sys_sendmsg+0xee/0x170
[ 5673.190646][   T73]      __sys_sendmsg+0xcd/0x170
[ 5673.190646][   T73]      do_syscall_64+0xc6/0x1e0
[ 5673.190646][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5673.190646][   T73] 
[ 5673.192893][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5673.192893][   T73]      netdev_get_by_index+0x5e/0x80
[ 5673.192893][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5673.192893][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5673.192893][   T73]      ip6_route_add+0x1c/0x140
[ 5673.192893][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5673.192893][   T73]      addrconf_add_dev+0xe2/0x170
[ 5673.192893][   T73]      inet6_addr_add+0x12f/0xa40
[ 5673.192893][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5673.192893][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5673.192893][   T73]      netlink_rcv_skb+0x130/0x360
[ 5673.192893][   T73]      netlink_unicast+0x449/0x710
[ 5673.192893][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5673.192893][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5673.192893][   T73]      ___sys_sendmsg+0xee/0x170
[ 5673.192893][   T73]      __sys_sendmsg+0xcd/0x170
[ 5673.192893][   T73]      do_syscall_64+0xc6/0x1e0
[ 5673.192893][   T73] 
[ 5673.195076][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5673.195076][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5673.195076][   T73]      ipv6_find_idev+0x102/0x170
[ 5673.195076][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5673.195076][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5673.195076][   T73]      netlink_rcv_skb+0x130/0x360
[ 5673.195076][   T73]      netlink_unicast+0x449/0x710
[ 5673.195076][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5673.195076][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5673.195076][   T73]      ___sys_sendmsg+0xee/0x170
[ 5673.195076][   T73]      __sys_sendmsg+0xcd/0x170
[ 5673.195076][   T73]      do_syscall_64+0xc6/0x1e0
[ 5673.195076][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5673.195076][   T73] 
[ 5673.196795][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5673.196795][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5673.196795][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5673.196795][   T73]      ipv6_find_idev+0x102/0x170
[ 5673.196795][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5673.196795][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5673.196795][   T73]      netlink_rcv_skb+0x130/0x360
[ 5673.196795][   T73]      netlink_unicast+0x449/0x710
[ 5673.196795][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5673.196795][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5673.196795][   T73]      ___sys_sendmsg+0xee/0x170
[ 5673.196795][   T73]      __sys_sendmsg+0xcd/0x170
[ 5673.196795][   T73]      do_syscall_64+0xc6/0x1e0
[ 5673.196795][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5673.196795][   T73] 
[ 5673.198683][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5673.199000][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5673.199000][   T73]      netdev_get_by_index+0x5e/0x80
[ 5673.199000][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5673.199000][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5673.199000][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5673.199000][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5673.199000][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5673.199000][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5673.199000][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5673.199000][   T73]      addrconf_dad_begin+0x310/0x670
[ 5673.199000][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5673.199000][   T73]      process_one_work+0x84d/0x18a0
[ 5673.199000][   T73]      worker_thread+0x587/0xd30
[ 5673.199000][   T73]      kthread+0x28a/0x350
[ 5673.199000][   T73]      ret_from_fork+0x31/0x70
[ 5673.199000][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5673.199000][   T73] 
[ 5673.201146][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5673.201146][   T73]      netdev_get_by_index+0x5e/0x80
[ 5673.201146][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5673.201146][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5673.201146][   T73]      ip6_route_add+0x1c/0x140
[ 5673.201146][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5673.201146][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5673.201146][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5673.201146][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5673.201146][   T73]      netlink_rcv_skb+0x130/0x360
[ 5673.201146][   T73]      netlink_unicast+0x449/0x710
[ 5673.201146][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5673.201146][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5673.201146][   T73]      ___sys_sendmsg+0xee/0x170
[ 5673.201146][   T73]      __sys_sendmsg+0xcd/0x170
[ 5673.201146][   T73]      do_syscall_64+0xc6/0x1e0
[ 5673.201146][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5673.201146][   T73] 
[ 5673.203394][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5673.203394][   T73]      netdev_get_by_index+0x5e/0x80
[ 5673.203394][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5673.203394][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5673.203394][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5673.203394][   T73]      ipv6_add_addr+0x411/0x2000
[ 5673.203394][   T73]      inet6_addr_add+0x30e/0xa40
[ 5673.203394][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5673.203394][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5673.203394][   T73]      netlink_rcv_skb+0x130/0x360
[ 5673.203394][   T73]      netlink_unicast+0x449/0x710
[ 5673.203394][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5673.203394][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5673.203394][   T73]      ___sys_sendmsg+0xee/0x170
[ 5673.203394][   T73]      __sys_sendmsg+0xcd/0x170
[ 5673.203394][   T73]      do_syscall_64+0xc6/0x1e0
[ 5673.203394][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5673.203394][   T73] 
[ 5673.205636][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5673.205636][   T73]      netdev_get_by_index+0x5e/0x80
[ 5673.205636][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5673.205636][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5673.205636][   T73]      ip6_route_add+0x1c/0x140
[ 5673.205636][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5673.205636][   T73]      addrconf_add_dev+0xe2/0x170
[ 5673.205636][   T73]      inet6_addr_add+0x12f/0xa40
[ 5673.205636][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5673.205636][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5673.205636][   T73]      netlink_rcv_skb+0x130/0x360
[ 5673.205636][   T73]      netlink_unicast+0x449/0x710
[ 5673.205636][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5673.205636][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5673.205636][   T73]      ___sys_sendmsg+0xee/0x170
[ 5673.205636][   T73]      __sys_sendmsg+0xcd/0x170
[ 5673.205636][   T73]      do_syscall_64+0xc6/0x1e0
[ 5673.205636][   T73] 
[ 5673.207843][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5673.207843][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5673.207843][   T73]      ipv6_find_idev+0x102/0x170
[ 5673.207843][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5673.207843][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5673.207843][   T73]      netlink_rcv_skb+0x130/0x360
[ 5673.207843][   T73]      netlink_unicast+0x449/0x710
[ 5673.207843][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5673.207843][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5673.207843][   T73]      ___sys_sendmsg+0xee/0x170
[ 5673.207843][   T73]      __sys_sendmsg+0xcd/0x170
[ 5673.207843][   T73]      do_syscall_64+0xc6/0x1e0
[ 5673.207843][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5673.207843][   T73] 
[ 5673.209599][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5673.209599][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5673.209599][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5673.209599][   T73]      ipv6_find_idev+0x102/0x170
[ 5673.209599][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5673.209599][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5673.209599][   T73]      netlink_rcv_skb+0x130/0x360
[ 5673.209599][   T73]      netlink_unicast+0x449/0x710
[ 5673.209599][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5673.209599][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5673.209599][   T73]      ___sys_sendmsg+0xee/0x170
[ 5673.209599][   T73]      __sys_sendmsg+0xcd/0x170
[ 5673.209599][   T73]      do_syscall_64+0xc6/0x1e0
[ 5673.209599][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5673.209599][   T73] 
[ 5673.211484][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5673.211823][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5673.211823][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5673.211823][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5673.211823][   T73]      fib6_nh_init+0xa22/0x1580
[ 5673.211823][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5673.211823][   T73]      ip6_route_add+0x1c/0x140
[ 5673.211823][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5673.211823][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5673.211823][   T73]      netlink_rcv_skb+0x130/0x360
[ 5673.211823][   T73]      netlink_unicast+0x449/0x710
[ 5673.211823][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5673.211823][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5673.211823][   T73]      ___sys_sendmsg+0xee/0x170
[ 5673.211823][   T73]      __sys_sendmsg+0xcd/0x170
[ 5673.211823][   T73]      do_syscall_64+0xc6/0x1e0
[ 5673.211823][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5673.211823][   T73] 
[ 5673.214148][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5673.214148][   T73]      dst_init+0x84/0x4a0
[ 5673.214148][   T73]      dst_alloc+0x97/0x150
[ 5673.214148][   T73]      ip6_dst_alloc+0x23/0x90
[ 5673.214148][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5673.214148][   T73]      ip6_pol_route+0x56f/0x840
[ 5673.214148][   T73]      fib6_rule_lookup+0x456/0x630
[ 5673.214148][   T73]      ip6_route_input+0x59c/0xa50
[ 5673.214148][   T73]      ipv6_rcv+0x397/0x810
[ 5673.214148][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5673.214148][   T73]      process_backlog+0x101/0x620
[ 5673.214148][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5673.214148][   T73]      net_rx_action+0x495/0xbe0
[ 5673.214148][   T73]      __do_softirq+0x1b5/0x7f6
[ 5673.214148][   T73] 
[ 5673.216173][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5673.216173][   T73]      netdev_get_by_index+0x5e/0x80
[ 5673.216173][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5673.216173][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5673.216173][   T73]      ip6_route_add+0x1c/0x140
[ 5673.216173][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5673.216173][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5673.216173][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5673.216173][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5673.216173][   T73]      netlink_rcv_skb+0x130/0x360
[ 5673.216173][   T73]      netlink_unicast+0x449/0x710
[ 5673.216173][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5673.216173][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5673.216173][   T73]      ___sys_sendmsg+0xee/0x170
[ 5673.216173][   T73]      __sys_sendmsg+0xcd/0x170
[ 5673.216173][   T73]      do_syscall_64+0xc6/0x1e0
[ 5673.216173][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5673.216173][   T73] 
[ 5673.218744][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5673.218744][   T73]      netdev_get_by_index+0x5e/0x80
[ 5673.218744][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5673.218744][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5673.218744][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5673.218744][   T73]      ipv6_add_addr+0x411/0x2000
[ 5673.218744][   T73]      inet6_addr_add+0x30e/0xa40
[ 5673.218744][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5673.218744][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5673.218744][   T73]      netlink_rcv_skb+0x130/0x360
[ 5673.218744][   T73]      netlink_unicast+0x449/0x710
[ 5673.218744][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5673.218744][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5673.218744][   T73]      ___sys_sendmsg+0xee/0x170
[ 5673.218744][   T73]      __sys_sendmsg+0xcd/0x170
[ 5673.218744][   T73]      do_syscall_64+0xc6/0x1e0
[ 5673.218744][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5673.218744][   T73] 
[ 5673.221150][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5673.221150][   T73]      netdev_get_by_index+0x5e/0x80
[ 5673.221150][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5673.221150][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5673.221150][   T73]      ip6_route_add+0x1c/0x140
[ 5673.221150][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5673.221150][   T73]      addrconf_add_dev+0xe2/0x170
[ 5673.221150][   T73]      inet6_addr_add+0x12f/0xa40
[ 5673.221150][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5673.221150][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5673.221150][   T73]      netlink_rcv_skb+0x130/0x360
[ 5673.221150][   T73]      netlink_unicast+0x449/0x710
[ 5673.221150][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5673.221150][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5673.221150][   T73]      ___sys_sendmsg+0xee/0x170
[ 5673.221150][   T73]      __sys_sendmsg+0xcd/0x170
[ 5673.221150][   T73]      do_syscall_64+0xc6/0x1e0
[ 5673.221150][   T73] 
[ 5673.223585][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5673.223585][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5673.223585][   T73]      ipv6_find_idev+0x102/0x170
[ 5673.223585][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5673.223585][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5673.223585][   T73]      netlink_rcv_skb+0x130/0x360
[ 5673.223585][   T73]      netlink_unicast+0x449/0x710
[ 5673.223585][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5673.223585][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5673.223585][   T73]      ___sys_sendmsg+0xee/0x170
[ 5673.223585][   T73]      __sys_sendmsg+0xcd/0x170
[ 5673.223585][   T73]      do_syscall_64+0xc6/0x1e0
[ 5673.223585][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5673.223585][   T73] 
[ 5673.225466][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5673.225466][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5673.225466][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5673.225466][   T73]      ipv6_find_idev+0x102/0x170
[ 5673.225466][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5673.225466][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5673.225466][   T73]      netlink_rcv_skb+0x130/0x360
[ 5673.225466][   T73]      netlink_unicast+0x449/0x710
[ 5673.225466][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5673.225466][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5673.225466][   T73]      ___sys_sendmsg+0xee/0x170
[ 5673.225466][   T73]      __sys_sendmsg+0xcd/0x170
[ 5673.225466][   T73]      do_syscall_64+0xc6/0x1e0
[ 5673.225466][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5673.225466][   T73] 
[ 5673.227537][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5673.228370][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5673.228370][   T73]      netdev_get_by_index+0x5e/0x80
[ 5673.228370][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5673.228370][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5673.228370][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5673.228370][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5673.228370][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5673.228370][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5673.228370][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5673.228370][   T73]      addrconf_dad_begin+0x310/0x670
[ 5673.228370][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5673.228370][   T73]      process_one_work+0x84d/0x18a0
[ 5673.228370][   T73]      worker_thread+0x587/0xd30
[ 5673.228370][   T73]      kthread+0x28a/0x350
[ 5673.228370][   T73]      ret_from_fork+0x31/0x70
[ 5673.228370][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5673.228370][   T73] 
[ 5673.230522][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5673.230522][   T73]      netdev_get_by_index+0x5e/0x80
[ 5673.230522][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5673.230522][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5673.230522][   T73]      ip6_route_add+0x1c/0x140
[ 5673.230522][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5673.230522][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5673.230522][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5673.230522][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5673.230522][   T73]      netlink_rcv_skb+0x130/0x360
[ 5673.230522][   T73]      netlink_unicast+0x449/0x710
[ 5673.230522][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5673.230522][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5673.230522][   T73]      ___sys_sendmsg+0xee/0x170
[ 5673.230522][   T73]      __sys_sendmsg+0xcd/0x170
[ 5673.230522][   T73]      do_syscall_64+0xc6/0x1e0
[ 5673.230522][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5673.230522][   T73] 
[ 5673.232738][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5673.232738][   T73]      netdev_get_by_index+0x5e/0x80
[ 5673.232738][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5673.232738][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5673.232738][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5673.232738][   T73]      ipv6_add_addr+0x411/0x2000
[ 5673.232738][   T73]      inet6_addr_add+0x30e/0xa40
[ 5673.232738][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5673.232738][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5673.232738][   T73]      netlink_rcv_skb+0x130/0x360
[ 5673.232738][   T73]      netlink_unicast+0x449/0x710
[ 5673.232738][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5673.232738][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5673.232738][   T73]      ___sys_sendmsg+0xee/0x170
[ 5673.232738][   T73]      __sys_sendmsg+0xcd/0x170
[ 5673.232738][   T73]      do_syscall_64+0xc6/0x1e0
[ 5673.232738][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5673.232738][   T73] 
[ 5673.235228][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5673.235228][   T73]      netdev_get_by_index+0x5e/0x80
[ 5673.235228][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5673.235228][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5673.235228][   T73]      ip6_route_add+0x1c/0x140
[ 5673.235228][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5673.235228][   T73]      addrconf_add_dev+0xe2/0x170
[ 5673.235228][   T73]      inet6_addr_add+0x12f/0xa40
[ 5673.235228][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5673.235228][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5673.235228][   T73]      netlink_rcv_skb+0x130/0x360
[ 5673.235228][   T73]      netlink_unicast+0x449/0x710
[ 5673.235228][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5673.235228][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5673.235228][   T73]      ___sys_sendmsg+0xee/0x170
[ 5673.235228][   T73]      __sys_sendmsg+0xcd/0x170
[ 5673.235228][   T73]      do_syscall_64+0xc6/0x1e0
[ 5673.235228][   T73] 
[ 5673.237678][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5673.237678][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5673.237678][   T73]      ipv6_find_idev+0x102/0x170
[ 5673.237678][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5673.237678][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5673.237678][   T73]      netlink_rcv_skb+0x130/0x360
[ 5673.237678][   T73]      netlink_unicast+0x449/0x710
[ 5673.237678][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5673.237678][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5673.237678][   T73]      ___sys_sendmsg+0xee/0x170
[ 5673.237678][   T73]      __sys_sendmsg+0xcd/0x170
[ 5673.237678][   T73]      do_syscall_64+0xc6/0x1e0
[ 5673.237678][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5673.237678][   T73] 
[ 5673.239589][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5673.239589][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5673.239589][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5673.239589][   T73]      ipv6_find_idev+0x102/0x170
[ 5673.239589][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5673.239589][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5673.239589][   T73]      netlink_rcv_skb+0x130/0x360
[ 5673.239589][   T73]      netlink_unicast+0x449/0x710
[ 5673.239589][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5673.239589][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5673.239589][   T73]      ___sys_sendmsg+0xee/0x170
[ 5673.239589][   T73]      __sys_sendmsg+0xcd/0x170
[ 5673.239589][   T73]      do_syscall_64+0xc6/0x1e0
[ 5673.239589][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5673.239589][   T73] 
[ 5683.479765][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5683.480263][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5683.480263][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5683.480263][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5683.480263][   T73]      fib6_nh_init+0xa22/0x1580
[ 5683.480263][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5683.480263][   T73]      ip6_route_add+0x1c/0x140
[ 5683.480263][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5683.480263][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5683.480263][   T73]      netlink_rcv_skb+0x130/0x360
[ 5683.480263][   T73]      netlink_unicast+0x449/0x710
[ 5683.480263][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5683.480263][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5683.480263][   T73]      ___sys_sendmsg+0xee/0x170
[ 5683.480263][   T73]      __sys_sendmsg+0xcd/0x170
[ 5683.480263][   T73]      do_syscall_64+0xc6/0x1e0
[ 5683.480263][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5683.480263][   T73] 
[ 5683.482419][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5683.482419][   T73]      dst_init+0x84/0x4a0
[ 5683.482419][   T73]      dst_alloc+0x97/0x150
[ 5683.482419][   T73]      ip6_dst_alloc+0x23/0x90
[ 5683.482419][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5683.482419][   T73]      ip6_pol_route+0x56f/0x840
[ 5683.482419][   T73]      fib6_rule_lookup+0x456/0x630
[ 5683.482419][   T73]      ip6_route_input+0x59c/0xa50
[ 5683.482419][   T73]      ipv6_rcv+0x397/0x810
[ 5683.482419][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5683.482419][   T73]      process_backlog+0x101/0x620
[ 5683.482419][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5683.482419][   T73]      net_rx_action+0x495/0xbe0
[ 5683.482419][   T73]      __do_softirq+0x1b5/0x7f6
[ 5683.482419][   T73] 
[ 5683.484239][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5683.484239][   T73]      netdev_get_by_index+0x5e/0x80
[ 5683.484239][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5683.484239][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5683.484239][   T73]      ip6_route_add+0x1c/0x140
[ 5683.484239][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5683.484239][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5683.484239][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5683.484239][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5683.484239][   T73]      netlink_rcv_skb+0x130/0x360
[ 5683.484239][   T73]      netlink_unicast+0x449/0x710
[ 5683.484239][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5683.484239][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5683.484239][   T73]      ___sys_sendmsg+0xee/0x170
[ 5683.484239][   T73]      __sys_sendmsg+0xcd/0x170
[ 5683.484239][   T73]      do_syscall_64+0xc6/0x1e0
[ 5683.484239][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5683.484239][   T73] 
[ 5683.486458][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5683.486458][   T73]      netdev_get_by_index+0x5e/0x80
[ 5683.486458][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5683.486458][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5683.486458][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5683.486458][   T73]      ipv6_add_addr+0x411/0x2000
[ 5683.486458][   T73]      inet6_addr_add+0x30e/0xa40
[ 5683.486458][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5683.486458][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5683.486458][   T73]      netlink_rcv_skb+0x130/0x360
[ 5683.486458][   T73]      netlink_unicast+0x449/0x710
[ 5683.486458][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5683.486458][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5683.486458][   T73]      ___sys_sendmsg+0xee/0x170
[ 5683.486458][   T73]      __sys_sendmsg+0xcd/0x170
[ 5683.486458][   T73]      do_syscall_64+0xc6/0x1e0
[ 5683.486458][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5683.486458][   T73] 
[ 5683.488693][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5683.488693][   T73]      netdev_get_by_index+0x5e/0x80
[ 5683.488693][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5683.488693][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5683.488693][   T73]      ip6_route_add+0x1c/0x140
[ 5683.488693][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5683.488693][   T73]      addrconf_add_dev+0xe2/0x170
[ 5683.488693][   T73]      inet6_addr_add+0x12f/0xa40
[ 5683.488693][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5683.488693][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5683.488693][   T73]      netlink_rcv_skb+0x130/0x360
[ 5683.488693][   T73]      netlink_unicast+0x449/0x710
[ 5683.488693][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5683.488693][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5683.488693][   T73]      ___sys_sendmsg+0xee/0x170
[ 5683.488693][   T73]      __sys_sendmsg+0xcd/0x170
[ 5683.488693][   T73]      do_syscall_64+0xc6/0x1e0
[ 5683.488693][   T73] 
[ 5683.490881][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5683.490881][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5683.490881][   T73]      ipv6_find_idev+0x102/0x170
[ 5683.490881][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5683.490881][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5683.490881][   T73]      netlink_rcv_skb+0x130/0x360
[ 5683.490881][   T73]      netlink_unicast+0x449/0x710
[ 5683.490881][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5683.490881][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5683.490881][   T73]      ___sys_sendmsg+0xee/0x170
[ 5683.490881][   T73]      __sys_sendmsg+0xcd/0x170
[ 5683.490881][   T73]      do_syscall_64+0xc6/0x1e0
[ 5683.490881][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5683.490881][   T73] 
[ 5683.492596][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5683.492596][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5683.492596][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5683.492596][   T73]      ipv6_find_idev+0x102/0x170
[ 5683.492596][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5683.492596][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5683.492596][   T73]      netlink_rcv_skb+0x130/0x360
[ 5683.492596][   T73]      netlink_unicast+0x449/0x710
[ 5683.492596][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5683.492596][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5683.492596][   T73]      ___sys_sendmsg+0xee/0x170
[ 5683.492596][   T73]      __sys_sendmsg+0xcd/0x170
[ 5683.492596][   T73]      do_syscall_64+0xc6/0x1e0
[ 5683.492596][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5683.492596][   T73] 
[ 5683.494486][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5683.494809][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5683.494809][   T73]      netdev_get_by_index+0x5e/0x80
[ 5683.494809][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5683.494809][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5683.494809][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5683.494809][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5683.494809][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5683.494809][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5683.494809][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5683.494809][   T73]      addrconf_dad_begin+0x310/0x670
[ 5683.494809][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5683.494809][   T73]      process_one_work+0x84d/0x18a0
[ 5683.494809][   T73]      worker_thread+0x587/0xd30
[ 5683.494809][   T73]      kthread+0x28a/0x350
[ 5683.494809][   T73]      ret_from_fork+0x31/0x70
[ 5683.494809][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5683.494809][   T73] 
[ 5683.496950][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5683.496950][   T73]      netdev_get_by_index+0x5e/0x80
[ 5683.496950][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5683.496950][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5683.496950][   T73]      ip6_route_add+0x1c/0x140
[ 5683.496950][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5683.496950][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5683.496950][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5683.496950][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5683.496950][   T73]      netlink_rcv_skb+0x130/0x360
[ 5683.496950][   T73]      netlink_unicast+0x449/0x710
[ 5683.496950][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5683.496950][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5683.496950][   T73]      ___sys_sendmsg+0xee/0x170
[ 5683.496950][   T73]      __sys_sendmsg+0xcd/0x170
[ 5683.496950][   T73]      do_syscall_64+0xc6/0x1e0
[ 5683.496950][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5683.496950][   T73] 
[ 5683.499173][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5683.499173][   T73]      netdev_get_by_index+0x5e/0x80
[ 5683.499173][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5683.499173][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5683.499173][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5683.499173][   T73]      ipv6_add_addr+0x411/0x2000
[ 5683.499173][   T73]      inet6_addr_add+0x30e/0xa40
[ 5683.499173][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5683.499173][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5683.499173][   T73]      netlink_rcv_skb+0x130/0x360
[ 5683.499173][   T73]      netlink_unicast+0x449/0x710
[ 5683.499173][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5683.499173][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5683.499173][   T73]      ___sys_sendmsg+0xee/0x170
[ 5683.499173][   T73]      __sys_sendmsg+0xcd/0x170
[ 5683.499173][   T73]      do_syscall_64+0xc6/0x1e0
[ 5683.499173][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5683.499173][   T73] 
[ 5683.501383][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5683.501383][   T73]      netdev_get_by_index+0x5e/0x80
[ 5683.501383][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5683.501383][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5683.501383][   T73]      ip6_route_add+0x1c/0x140
[ 5683.501383][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5683.501383][   T73]      addrconf_add_dev+0xe2/0x170
[ 5683.501383][   T73]      inet6_addr_add+0x12f/0xa40
[ 5683.501383][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5683.501383][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5683.501383][   T73]      netlink_rcv_skb+0x130/0x360
[ 5683.501383][   T73]      netlink_unicast+0x449/0x710
[ 5683.501383][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5683.501383][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5683.501383][   T73]      ___sys_sendmsg+0xee/0x170
[ 5683.501383][   T73]      __sys_sendmsg+0xcd/0x170
[ 5683.501383][   T73]      do_syscall_64+0xc6/0x1e0
[ 5683.501383][   T73] 
[ 5683.503560][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5683.503560][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5683.503560][   T73]      ipv6_find_idev+0x102/0x170
[ 5683.503560][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5683.503560][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5683.503560][   T73]      netlink_rcv_skb+0x130/0x360
[ 5683.503560][   T73]      netlink_unicast+0x449/0x710
[ 5683.503560][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5683.503560][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5683.503560][   T73]      ___sys_sendmsg+0xee/0x170
[ 5683.503560][   T73]      __sys_sendmsg+0xcd/0x170
[ 5683.503560][   T73]      do_syscall_64+0xc6/0x1e0
[ 5683.503560][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5683.503560][   T73] 
[ 5683.505277][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5683.505277][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5683.505277][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5683.505277][   T73]      ipv6_find_idev+0x102/0x170
[ 5683.505277][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5683.505277][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5683.505277][   T73]      netlink_rcv_skb+0x130/0x360
[ 5683.505277][   T73]      netlink_unicast+0x449/0x710
[ 5683.505277][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5683.505277][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5683.505277][   T73]      ___sys_sendmsg+0xee/0x170
[ 5683.505277][   T73]      __sys_sendmsg+0xcd/0x170
[ 5683.505277][   T73]      do_syscall_64+0xc6/0x1e0
[ 5683.505277][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5683.505277][   T73] 
[ 5683.507166][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5683.507458][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5683.507458][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5683.507458][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5683.507458][   T73]      fib6_nh_init+0xa22/0x1580
[ 5683.507458][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5683.507458][   T73]      ip6_route_add+0x1c/0x140
[ 5683.507458][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5683.507458][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5683.507458][   T73]      netlink_rcv_skb+0x130/0x360
[ 5683.507458][   T73]      netlink_unicast+0x449/0x710
[ 5683.507458][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5683.507458][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5683.507458][   T73]      ___sys_sendmsg+0xee/0x170
[ 5683.507458][   T73]      __sys_sendmsg+0xcd/0x170
[ 5683.507458][   T73]      do_syscall_64+0xc6/0x1e0
[ 5683.507458][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5683.507458][   T73] 
[ 5683.509778][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5683.509778][   T73]      dst_init+0x84/0x4a0
[ 5683.509778][   T73]      dst_alloc+0x97/0x150
[ 5683.509778][   T73]      ip6_dst_alloc+0x23/0x90
[ 5683.509778][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5683.509778][   T73]      ip6_pol_route+0x56f/0x840
[ 5683.509778][   T73]      fib6_rule_lookup+0x456/0x630
[ 5683.509778][   T73]      ip6_route_input+0x59c/0xa50
[ 5683.509778][   T73]      ipv6_rcv+0x397/0x810
[ 5683.509778][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5683.509778][   T73]      process_backlog+0x101/0x620
[ 5683.509778][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5683.509778][   T73]      net_rx_action+0x495/0xbe0
[ 5683.509778][   T73]      __do_softirq+0x1b5/0x7f6
[ 5683.509778][   T73] 
[ 5683.511849][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5683.511849][   T73]      netdev_get_by_index+0x5e/0x80
[ 5683.511849][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5683.511849][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5683.511849][   T73]      ip6_route_add+0x1c/0x140
[ 5683.511849][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5683.511849][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5683.511849][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5683.511849][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5683.511849][   T73]      netlink_rcv_skb+0x130/0x360
[ 5683.511849][   T73]      netlink_unicast+0x449/0x710
[ 5683.511849][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5683.511849][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5683.511849][   T73]      ___sys_sendmsg+0xee/0x170
[ 5683.511849][   T73]      __sys_sendmsg+0xcd/0x170
[ 5683.511849][   T73]      do_syscall_64+0xc6/0x1e0
[ 5683.511849][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5683.511849][   T73] 
[ 5683.514333][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5683.514333][   T73]      netdev_get_by_index+0x5e/0x80
[ 5683.514333][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5683.514333][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5683.514333][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5683.514333][   T73]      ipv6_add_addr+0x411/0x2000
[ 5683.514333][   T73]      inet6_addr_add+0x30e/0xa40
[ 5683.514333][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5683.514333][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5683.514333][   T73]      netlink_rcv_skb+0x130/0x360
[ 5683.514333][   T73]      netlink_unicast+0x449/0x710
[ 5683.514333][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5683.514333][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5683.514333][   T73]      ___sys_sendmsg+0xee/0x170
[ 5683.514333][   T73]      __sys_sendmsg+0xcd/0x170
[ 5683.514333][   T73]      do_syscall_64+0xc6/0x1e0
[ 5683.514333][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5683.514333][   T73] 
[ 5683.516732][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5683.516732][   T73]      netdev_get_by_index+0x5e/0x80
[ 5683.516732][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5683.516732][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5683.516732][   T73]      ip6_route_add+0x1c/0x140
[ 5683.516732][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5683.516732][   T73]      addrconf_add_dev+0xe2/0x170
[ 5683.516732][   T73]      inet6_addr_add+0x12f/0xa40
[ 5683.516732][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5683.516732][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5683.516732][   T73]      netlink_rcv_skb+0x130/0x360
[ 5683.516732][   T73]      netlink_unicast+0x449/0x710
[ 5683.516732][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5683.516732][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5683.516732][   T73]      ___sys_sendmsg+0xee/0x170
[ 5683.516732][   T73]      __sys_sendmsg+0xcd/0x170
[ 5683.516732][   T73]      do_syscall_64+0xc6/0x1e0
[ 5683.516732][   T73] 
[ 5683.519189][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5683.519189][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5683.519189][   T73]      ipv6_find_idev+0x102/0x170
[ 5683.519189][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5683.519189][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5683.519189][   T73]      netlink_rcv_skb+0x130/0x360
[ 5683.519189][   T73]      netlink_unicast+0x449/0x710
[ 5683.519189][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5683.519189][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5683.519189][   T73]      ___sys_sendmsg+0xee/0x170
[ 5683.519189][   T73]      __sys_sendmsg+0xcd/0x170
[ 5683.519189][   T73]      do_syscall_64+0xc6/0x1e0
[ 5683.519189][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5683.519189][   T73] 
[ 5683.521090][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5683.521090][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5683.521090][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5683.521090][   T73]      ipv6_find_idev+0x102/0x170
[ 5683.521090][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5683.521090][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5683.521090][   T73]      netlink_rcv_skb+0x130/0x360
[ 5683.521090][   T73]      netlink_unicast+0x449/0x710
[ 5683.521090][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5683.521090][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5683.521090][   T73]      ___sys_sendmsg+0xee/0x170
[ 5683.521090][   T73]      __sys_sendmsg+0xcd/0x170
[ 5683.521090][   T73]      do_syscall_64+0xc6/0x1e0
[ 5683.521090][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5683.521090][   T73] 
[ 5683.523232][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5683.523607][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5683.523607][   T73]      netdev_get_by_index+0x5e/0x80
[ 5683.523607][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5683.523607][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5683.523607][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5683.523607][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5683.523607][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5683.523607][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5683.523607][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5683.523607][   T73]      addrconf_dad_begin+0x310/0x670
[ 5683.523607][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5683.523607][   T73]      process_one_work+0x84d/0x18a0
[ 5683.523607][   T73]      worker_thread+0x587/0xd30
[ 5683.523607][   T73]      kthread+0x28a/0x350
[ 5683.523607][   T73]      ret_from_fork+0x31/0x70
[ 5683.523607][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5683.523607][   T73] 
[ 5683.525846][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5683.525846][   T73]      netdev_get_by_index+0x5e/0x80
[ 5683.525846][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5683.525846][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5683.525846][   T73]      ip6_route_add+0x1c/0x140
[ 5683.525846][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5683.525846][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5683.525846][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5683.525846][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5683.525846][   T73]      netlink_rcv_skb+0x130/0x360
[ 5683.525846][   T73]      netlink_unicast+0x449/0x710
[ 5683.525846][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5683.525846][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5683.525846][   T73]      ___sys_sendmsg+0xee/0x170
[ 5683.525846][   T73]      __sys_sendmsg+0xcd/0x170
[ 5683.525846][   T73]      do_syscall_64+0xc6/0x1e0
[ 5683.525846][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5683.525846][   T73] 
[ 5683.528339][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5683.528339][   T73]      netdev_get_by_index+0x5e/0x80
[ 5683.528339][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5683.528339][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5683.528339][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5683.528339][   T73]      ipv6_add_addr+0x411/0x2000
[ 5683.528339][   T73]      inet6_addr_add+0x30e/0xa40
[ 5683.528339][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5683.528339][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5683.528339][   T73]      netlink_rcv_skb+0x130/0x360
[ 5683.528339][   T73]      netlink_unicast+0x449/0x710
[ 5683.528339][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5683.528339][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5683.528339][   T73]      ___sys_sendmsg+0xee/0x170
[ 5683.528339][   T73]      __sys_sendmsg+0xcd/0x170
[ 5683.528339][   T73]      do_syscall_64+0xc6/0x1e0
[ 5683.528339][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5683.528339][   T73] 
[ 5683.530796][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5683.530796][   T73]      netdev_get_by_index+0x5e/0x80
[ 5683.530796][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5683.530796][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5683.530796][   T73]      ip6_route_add+0x1c/0x140
[ 5683.530796][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5683.530796][   T73]      addrconf_add_dev+0xe2/0x170
[ 5683.530796][   T73]      inet6_addr_add+0x12f/0xa40
[ 5683.530796][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5683.530796][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5683.530796][   T73]      netlink_rcv_skb+0x130/0x360
[ 5683.530796][   T73]      netlink_unicast+0x449/0x710
[ 5683.530796][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5683.530796][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5683.530796][   T73]      ___sys_sendmsg+0xee/0x170
[ 5683.530796][   T73]      __sys_sendmsg+0xcd/0x170
[ 5683.530796][   T73]      do_syscall_64+0xc6/0x1e0
[ 5683.530796][   T73] 
[ 5683.533303][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5683.533303][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5683.533303][   T73]      ipv6_find_idev+0x102/0x170
[ 5683.533303][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5683.533303][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5683.533303][   T73]      netlink_rcv_skb+0x130/0x360
[ 5683.533303][   T73]      netlink_unicast+0x449/0x710
[ 5683.533303][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5683.533303][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5683.533303][   T73]      ___sys_sendmsg+0xee/0x170
[ 5683.533303][   T73]      __sys_sendmsg+0xcd/0x170
[ 5683.533303][   T73]      do_syscall_64+0xc6/0x1e0
[ 5683.533303][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5683.533303][   T73] 
[ 5683.535213][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5683.535213][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5683.535213][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5683.535213][   T73]      ipv6_find_idev+0x102/0x170
[ 5683.535213][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5683.535213][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5683.535213][   T73]      netlink_rcv_skb+0x130/0x360
[ 5683.535213][   T73]      netlink_unicast+0x449/0x710
[ 5683.535213][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5683.535213][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5683.535213][   T73]      ___sys_sendmsg+0xee/0x170
[ 5683.535213][   T73]      __sys_sendmsg+0xcd/0x170
[ 5683.535213][   T73]      do_syscall_64+0xc6/0x1e0
[ 5683.535213][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5683.535213][   T73] 
[ 5693.775767][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5693.776268][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5693.776268][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5693.776268][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5693.776268][   T73]      fib6_nh_init+0xa22/0x1580
[ 5693.776268][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5693.776268][   T73]      ip6_route_add+0x1c/0x140
[ 5693.776268][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5693.776268][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5693.776268][   T73]      netlink_rcv_skb+0x130/0x360
[ 5693.776268][   T73]      netlink_unicast+0x449/0x710
[ 5693.776268][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5693.776268][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5693.776268][   T73]      ___sys_sendmsg+0xee/0x170
[ 5693.776268][   T73]      __sys_sendmsg+0xcd/0x170
[ 5693.776268][   T73]      do_syscall_64+0xc6/0x1e0
[ 5693.776268][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5693.776268][   T73] 
[ 5693.778420][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5693.778420][   T73]      dst_init+0x84/0x4a0
[ 5693.778420][   T73]      dst_alloc+0x97/0x150
[ 5693.778420][   T73]      ip6_dst_alloc+0x23/0x90
[ 5693.778420][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5693.778420][   T73]      ip6_pol_route+0x56f/0x840
[ 5693.778420][   T73]      fib6_rule_lookup+0x456/0x630
[ 5693.778420][   T73]      ip6_route_input+0x59c/0xa50
[ 5693.778420][   T73]      ipv6_rcv+0x397/0x810
[ 5693.778420][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5693.778420][   T73]      process_backlog+0x101/0x620
[ 5693.778420][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5693.778420][   T73]      net_rx_action+0x495/0xbe0
[ 5693.778420][   T73]      __do_softirq+0x1b5/0x7f6
[ 5693.778420][   T73] 
[ 5693.780240][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5693.780240][   T73]      netdev_get_by_index+0x5e/0x80
[ 5693.780240][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5693.780240][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5693.780240][   T73]      ip6_route_add+0x1c/0x140
[ 5693.780240][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5693.780240][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5693.780240][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5693.780240][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5693.780240][   T73]      netlink_rcv_skb+0x130/0x360
[ 5693.780240][   T73]      netlink_unicast+0x449/0x710
[ 5693.780240][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5693.780240][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5693.780240][   T73]      ___sys_sendmsg+0xee/0x170
[ 5693.780240][   T73]      __sys_sendmsg+0xcd/0x170
[ 5693.780240][   T73]      do_syscall_64+0xc6/0x1e0
[ 5693.780240][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5693.780240][   T73] 
[ 5693.782471][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5693.782471][   T73]      netdev_get_by_index+0x5e/0x80
[ 5693.782471][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5693.782471][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5693.782471][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5693.782471][   T73]      ipv6_add_addr+0x411/0x2000
[ 5693.782471][   T73]      inet6_addr_add+0x30e/0xa40
[ 5693.782471][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5693.782471][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5693.782471][   T73]      netlink_rcv_skb+0x130/0x360
[ 5693.782471][   T73]      netlink_unicast+0x449/0x710
[ 5693.782471][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5693.782471][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5693.782471][   T73]      ___sys_sendmsg+0xee/0x170
[ 5693.782471][   T73]      __sys_sendmsg+0xcd/0x170
[ 5693.782471][   T73]      do_syscall_64+0xc6/0x1e0
[ 5693.782471][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5693.782471][   T73] 
[ 5693.784709][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5693.784709][   T73]      netdev_get_by_index+0x5e/0x80
[ 5693.784709][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5693.784709][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5693.784709][   T73]      ip6_route_add+0x1c/0x140
[ 5693.784709][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5693.784709][   T73]      addrconf_add_dev+0xe2/0x170
[ 5693.784709][   T73]      inet6_addr_add+0x12f/0xa40
[ 5693.784709][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5693.784709][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5693.784709][   T73]      netlink_rcv_skb+0x130/0x360
[ 5693.784709][   T73]      netlink_unicast+0x449/0x710
[ 5693.784709][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5693.784709][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5693.784709][   T73]      ___sys_sendmsg+0xee/0x170
[ 5693.784709][   T73]      __sys_sendmsg+0xcd/0x170
[ 5693.784709][   T73]      do_syscall_64+0xc6/0x1e0
[ 5693.784709][   T73] 
[ 5693.786882][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5693.786882][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5693.786882][   T73]      ipv6_find_idev+0x102/0x170
[ 5693.786882][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5693.786882][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5693.786882][   T73]      netlink_rcv_skb+0x130/0x360
[ 5693.786882][   T73]      netlink_unicast+0x449/0x710
[ 5693.786882][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5693.786882][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5693.786882][   T73]      ___sys_sendmsg+0xee/0x170
[ 5693.786882][   T73]      __sys_sendmsg+0xcd/0x170
[ 5693.786882][   T73]      do_syscall_64+0xc6/0x1e0
[ 5693.786882][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5693.786882][   T73] 
[ 5693.788594][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5693.788594][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5693.788594][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5693.788594][   T73]      ipv6_find_idev+0x102/0x170
[ 5693.788594][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5693.788594][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5693.788594][   T73]      netlink_rcv_skb+0x130/0x360
[ 5693.788594][   T73]      netlink_unicast+0x449/0x710
[ 5693.788594][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5693.788594][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5693.788594][   T73]      ___sys_sendmsg+0xee/0x170
[ 5693.788594][   T73]      __sys_sendmsg+0xcd/0x170
[ 5693.788594][   T73]      do_syscall_64+0xc6/0x1e0
[ 5693.788594][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5693.788594][   T73] 
[ 5693.790472][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5693.790793][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5693.790793][   T73]      netdev_get_by_index+0x5e/0x80
[ 5693.790793][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5693.790793][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5693.790793][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5693.790793][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5693.790793][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5693.790793][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5693.790793][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5693.790793][   T73]      addrconf_dad_begin+0x310/0x670
[ 5693.790793][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5693.790793][   T73]      process_one_work+0x84d/0x18a0
[ 5693.790793][   T73]      worker_thread+0x587/0xd30
[ 5693.790793][   T73]      kthread+0x28a/0x350
[ 5693.790793][   T73]      ret_from_fork+0x31/0x70
[ 5693.790793][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5693.790793][   T73] 
[ 5693.792956][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5693.792956][   T73]      netdev_get_by_index+0x5e/0x80
[ 5693.792956][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5693.792956][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5693.792956][   T73]      ip6_route_add+0x1c/0x140
[ 5693.792956][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5693.792956][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5693.792956][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5693.792956][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5693.792956][   T73]      netlink_rcv_skb+0x130/0x360
[ 5693.792956][   T73]      netlink_unicast+0x449/0x710
[ 5693.792956][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5693.792956][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5693.792956][   T73]      ___sys_sendmsg+0xee/0x170
[ 5693.792956][   T73]      __sys_sendmsg+0xcd/0x170
[ 5693.792956][   T73]      do_syscall_64+0xc6/0x1e0
[ 5693.792956][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5693.792956][   T73] 
[ 5693.795196][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5693.795196][   T73]      netdev_get_by_index+0x5e/0x80
[ 5693.795196][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5693.795196][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5693.795196][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5693.795196][   T73]      ipv6_add_addr+0x411/0x2000
[ 5693.795196][   T73]      inet6_addr_add+0x30e/0xa40
[ 5693.795196][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5693.795196][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5693.795196][   T73]      netlink_rcv_skb+0x130/0x360
[ 5693.795196][   T73]      netlink_unicast+0x449/0x710
[ 5693.795196][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5693.795196][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5693.795196][   T73]      ___sys_sendmsg+0xee/0x170
[ 5693.795196][   T73]      __sys_sendmsg+0xcd/0x170
[ 5693.795196][   T73]      do_syscall_64+0xc6/0x1e0
[ 5693.795196][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5693.795196][   T73] 
[ 5693.797429][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5693.797429][   T73]      netdev_get_by_index+0x5e/0x80
[ 5693.797429][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5693.797429][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5693.797429][   T73]      ip6_route_add+0x1c/0x140
[ 5693.797429][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5693.797429][   T73]      addrconf_add_dev+0xe2/0x170
[ 5693.797429][   T73]      inet6_addr_add+0x12f/0xa40
[ 5693.797429][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5693.797429][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5693.797429][   T73]      netlink_rcv_skb+0x130/0x360
[ 5693.797429][   T73]      netlink_unicast+0x449/0x710
[ 5693.797429][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5693.797429][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5693.797429][   T73]      ___sys_sendmsg+0xee/0x170
[ 5693.797429][   T73]      __sys_sendmsg+0xcd/0x170
[ 5693.797429][   T73]      do_syscall_64+0xc6/0x1e0
[ 5693.797429][   T73] 
[ 5693.799641][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5693.799641][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5693.799641][   T73]      ipv6_find_idev+0x102/0x170
[ 5693.799641][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5693.799641][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5693.799641][   T73]      netlink_rcv_skb+0x130/0x360
[ 5693.799641][   T73]      netlink_unicast+0x449/0x710
[ 5693.799641][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5693.799641][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5693.799641][   T73]      ___sys_sendmsg+0xee/0x170
[ 5693.799641][   T73]      __sys_sendmsg+0xcd/0x170
[ 5693.799641][   T73]      do_syscall_64+0xc6/0x1e0
[ 5693.799641][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5693.799641][   T73] 
[ 5693.801364][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5693.801364][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5693.801364][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5693.801364][   T73]      ipv6_find_idev+0x102/0x170
[ 5693.801364][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5693.801364][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5693.801364][   T73]      netlink_rcv_skb+0x130/0x360
[ 5693.801364][   T73]      netlink_unicast+0x449/0x710
[ 5693.801364][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5693.801364][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5693.801364][   T73]      ___sys_sendmsg+0xee/0x170
[ 5693.801364][   T73]      __sys_sendmsg+0xcd/0x170
[ 5693.801364][   T73]      do_syscall_64+0xc6/0x1e0
[ 5693.801364][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5693.801364][   T73] 
[ 5693.803264][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5693.803575][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5693.803575][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5693.803575][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5693.803575][   T73]      fib6_nh_init+0xa22/0x1580
[ 5693.803575][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5693.803575][   T73]      ip6_route_add+0x1c/0x140
[ 5693.803575][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5693.803575][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5693.803575][   T73]      netlink_rcv_skb+0x130/0x360
[ 5693.803575][   T73]      netlink_unicast+0x449/0x710
[ 5693.803575][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5693.803575][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5693.803575][   T73]      ___sys_sendmsg+0xee/0x170
[ 5693.803575][   T73]      __sys_sendmsg+0xcd/0x170
[ 5693.803575][   T73]      do_syscall_64+0xc6/0x1e0
[ 5693.803575][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5693.803575][   T73] 
[ 5693.805884][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5693.805884][   T73]      dst_init+0x84/0x4a0
[ 5693.805884][   T73]      dst_alloc+0x97/0x150
[ 5693.805884][   T73]      ip6_dst_alloc+0x23/0x90
[ 5693.805884][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5693.805884][   T73]      ip6_pol_route+0x56f/0x840
[ 5693.805884][   T73]      fib6_rule_lookup+0x456/0x630
[ 5693.805884][   T73]      ip6_route_input+0x59c/0xa50
[ 5693.805884][   T73]      ipv6_rcv+0x397/0x810
[ 5693.805884][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5693.805884][   T73]      process_backlog+0x101/0x620
[ 5693.805884][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5693.805884][   T73]      net_rx_action+0x495/0xbe0
[ 5693.805884][   T73]      __do_softirq+0x1b5/0x7f6
[ 5693.805884][   T73] 
[ 5693.807909][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5693.807909][   T73]      netdev_get_by_index+0x5e/0x80
[ 5693.807909][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5693.807909][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5693.807909][   T73]      ip6_route_add+0x1c/0x140
[ 5693.807909][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5693.807909][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5693.807909][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5693.807909][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5693.807909][   T73]      netlink_rcv_skb+0x130/0x360
[ 5693.807909][   T73]      netlink_unicast+0x449/0x710
[ 5693.807909][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5693.807909][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5693.807909][   T73]      ___sys_sendmsg+0xee/0x170
[ 5693.807909][   T73]      __sys_sendmsg+0xcd/0x170
[ 5693.807909][   T73]      do_syscall_64+0xc6/0x1e0
[ 5693.807909][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5693.807909][   T73] 
[ 5693.810420][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5693.810420][   T73]      netdev_get_by_index+0x5e/0x80
[ 5693.810420][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5693.810420][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5693.810420][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5693.810420][   T73]      ipv6_add_addr+0x411/0x2000
[ 5693.810420][   T73]      inet6_addr_add+0x30e/0xa40
[ 5693.810420][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5693.810420][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5693.810420][   T73]      netlink_rcv_skb+0x130/0x360
[ 5693.810420][   T73]      netlink_unicast+0x449/0x710
[ 5693.810420][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5693.810420][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5693.810420][   T73]      ___sys_sendmsg+0xee/0x170
[ 5693.810420][   T73]      __sys_sendmsg+0xcd/0x170
[ 5693.810420][   T73]      do_syscall_64+0xc6/0x1e0
[ 5693.810420][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5693.810420][   T73] 
[ 5693.812869][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5693.812869][   T73]      netdev_get_by_index+0x5e/0x80
[ 5693.812869][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5693.812869][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5693.812869][   T73]      ip6_route_add+0x1c/0x140
[ 5693.812869][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5693.812869][   T73]      addrconf_add_dev+0xe2/0x170
[ 5693.812869][   T73]      inet6_addr_add+0x12f/0xa40
[ 5693.812869][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5693.812869][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5693.812869][   T73]      netlink_rcv_skb+0x130/0x360
[ 5693.812869][   T73]      netlink_unicast+0x449/0x710
[ 5693.812869][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5693.812869][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5693.812869][   T73]      ___sys_sendmsg+0xee/0x170
[ 5693.812869][   T73]      __sys_sendmsg+0xcd/0x170
[ 5693.812869][   T73]      do_syscall_64+0xc6/0x1e0
[ 5693.812869][   T73] 
[ 5693.815338][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5693.815338][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5693.815338][   T73]      ipv6_find_idev+0x102/0x170
[ 5693.815338][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5693.815338][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5693.815338][   T73]      netlink_rcv_skb+0x130/0x360
[ 5693.815338][   T73]      netlink_unicast+0x449/0x710
[ 5693.815338][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5693.815338][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5693.815338][   T73]      ___sys_sendmsg+0xee/0x170
[ 5693.815338][   T73]      __sys_sendmsg+0xcd/0x170
[ 5693.815338][   T73]      do_syscall_64+0xc6/0x1e0
[ 5693.815338][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5693.815338][   T73] 
[ 5693.817300][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5693.817300][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5693.817300][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5693.817300][   T73]      ipv6_find_idev+0x102/0x170
[ 5693.817300][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5693.817300][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5693.817300][   T73]      netlink_rcv_skb+0x130/0x360
[ 5693.817300][   T73]      netlink_unicast+0x449/0x710
[ 5693.817300][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5693.817300][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5693.817300][   T73]      ___sys_sendmsg+0xee/0x170
[ 5693.817300][   T73]      __sys_sendmsg+0xcd/0x170
[ 5693.817300][   T73]      do_syscall_64+0xc6/0x1e0
[ 5693.817300][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5693.817300][   T73] 
[ 5693.819384][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5693.820196][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5693.820196][   T73]      netdev_get_by_index+0x5e/0x80
[ 5693.820196][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5693.820196][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5693.820196][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5693.820196][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5693.820196][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5693.820196][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5693.820196][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5693.820196][   T73]      addrconf_dad_begin+0x310/0x670
[ 5693.820196][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5693.820196][   T73]      process_one_work+0x84d/0x18a0
[ 5693.820196][   T73]      worker_thread+0x587/0xd30
[ 5693.820196][   T73]      kthread+0x28a/0x350
[ 5693.820196][   T73]      ret_from_fork+0x31/0x70
[ 5693.820196][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5693.820196][   T73] 
[ 5693.822341][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5693.822341][   T73]      netdev_get_by_index+0x5e/0x80
[ 5693.822341][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5693.822341][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5693.822341][   T73]      ip6_route_add+0x1c/0x140
[ 5693.822341][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5693.822341][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5693.822341][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5693.822341][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5693.822341][   T73]      netlink_rcv_skb+0x130/0x360
[ 5693.822341][   T73]      netlink_unicast+0x449/0x710
[ 5693.822341][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5693.822341][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5693.822341][   T73]      ___sys_sendmsg+0xee/0x170
[ 5693.822341][   T73]      __sys_sendmsg+0xcd/0x170
[ 5693.822341][   T73]      do_syscall_64+0xc6/0x1e0
[ 5693.822341][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5693.822341][   T73] 
[ 5693.825141][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5693.825141][   T73]      netdev_get_by_index+0x5e/0x80
[ 5693.825141][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5693.825141][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5693.825141][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5693.825141][   T73]      ipv6_add_addr+0x411/0x2000
[ 5693.825141][   T73]      inet6_addr_add+0x30e/0xa40
[ 5693.825141][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5693.825141][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5693.825141][   T73]      netlink_rcv_skb+0x130/0x360
[ 5693.825141][   T73]      netlink_unicast+0x449/0x710
[ 5693.825141][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5693.825141][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5693.825141][   T73]      ___sys_sendmsg+0xee/0x170
[ 5693.825141][   T73]      __sys_sendmsg+0xcd/0x170
[ 5693.825141][   T73]      do_syscall_64+0xc6/0x1e0
[ 5693.825141][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5693.825141][   T73] 
[ 5693.827654][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5693.827654][   T73]      netdev_get_by_index+0x5e/0x80
[ 5693.827654][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5693.827654][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5693.827654][   T73]      ip6_route_add+0x1c/0x140
[ 5693.827654][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5693.827654][   T73]      addrconf_add_dev+0xe2/0x170
[ 5693.827654][   T73]      inet6_addr_add+0x12f/0xa40
[ 5693.827654][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5693.827654][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5693.827654][   T73]      netlink_rcv_skb+0x130/0x360
[ 5693.827654][   T73]      netlink_unicast+0x449/0x710
[ 5693.827654][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5693.827654][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5693.827654][   T73]      ___sys_sendmsg+0xee/0x170
[ 5693.827654][   T73]      __sys_sendmsg+0xcd/0x170
[ 5693.827654][   T73]      do_syscall_64+0xc6/0x1e0
[ 5693.827654][   T73] 
[ 5693.830196][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5693.830196][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5693.830196][   T73]      ipv6_find_idev+0x102/0x170
[ 5693.830196][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5693.830196][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5693.830196][   T73]      netlink_rcv_skb+0x130/0x360
[ 5693.830196][   T73]      netlink_unicast+0x449/0x710
[ 5693.830196][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5693.830196][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5693.830196][   T73]      ___sys_sendmsg+0xee/0x170
[ 5693.830196][   T73]      __sys_sendmsg+0xcd/0x170
[ 5693.830196][   T73]      do_syscall_64+0xc6/0x1e0
[ 5693.830196][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5693.830196][   T73] 
[ 5693.832125][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5693.832125][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5693.832125][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5693.832125][   T73]      ipv6_find_idev+0x102/0x170
[ 5693.832125][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5693.832125][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5693.832125][   T73]      netlink_rcv_skb+0x130/0x360
[ 5693.832125][   T73]      netlink_unicast+0x449/0x710
[ 5693.832125][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5693.832125][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5693.832125][   T73]      ___sys_sendmsg+0xee/0x170
[ 5693.832125][   T73]      __sys_sendmsg+0xcd/0x170
[ 5693.832125][   T73]      do_syscall_64+0xc6/0x1e0
[ 5693.832125][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5693.832125][   T73] 
[ 5703.887757][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5703.888268][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5703.888268][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5703.888268][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5703.888268][   T73]      fib6_nh_init+0xa22/0x1580
[ 5703.888268][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5703.888268][   T73]      ip6_route_add+0x1c/0x140
[ 5703.888268][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5703.888268][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5703.888268][   T73]      netlink_rcv_skb+0x130/0x360
[ 5703.888268][   T73]      netlink_unicast+0x449/0x710
[ 5703.888268][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5703.888268][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5703.888268][   T73]      ___sys_sendmsg+0xee/0x170
[ 5703.888268][   T73]      __sys_sendmsg+0xcd/0x170
[ 5703.888268][   T73]      do_syscall_64+0xc6/0x1e0
[ 5703.888268][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5703.888268][   T73] 
[ 5703.890236][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5703.890236][   T73]      dst_init+0x84/0x4a0
[ 5703.890236][   T73]      dst_alloc+0x97/0x150
[ 5703.890236][   T73]      ip6_dst_alloc+0x23/0x90
[ 5703.890236][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5703.890236][   T73]      ip6_pol_route+0x56f/0x840
[ 5703.890236][   T73]      fib6_rule_lookup+0x456/0x630
[ 5703.890236][   T73]      ip6_route_input+0x59c/0xa50
[ 5703.890236][   T73]      ipv6_rcv+0x397/0x810
[ 5703.890236][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5703.890236][   T73]      process_backlog+0x101/0x620
[ 5703.890236][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5703.890236][   T73]      net_rx_action+0x495/0xbe0
[ 5703.890236][   T73]      __do_softirq+0x1b5/0x7f6
[ 5703.890236][   T73] 
[ 5703.891941][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5703.891941][   T73]      netdev_get_by_index+0x5e/0x80
[ 5703.891941][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5703.891941][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5703.891941][   T73]      ip6_route_add+0x1c/0x140
[ 5703.891941][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5703.891941][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5703.891941][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5703.891941][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5703.891941][   T73]      netlink_rcv_skb+0x130/0x360
[ 5703.891941][   T73]      netlink_unicast+0x449/0x710
[ 5703.891941][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5703.891941][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5703.891941][   T73]      ___sys_sendmsg+0xee/0x170
[ 5703.891941][   T73]      __sys_sendmsg+0xcd/0x170
[ 5703.891941][   T73]      do_syscall_64+0xc6/0x1e0
[ 5703.891941][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5703.891941][   T73] 
[ 5703.893992][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5703.893992][   T73]      netdev_get_by_index+0x5e/0x80
[ 5703.893992][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5703.893992][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5703.893992][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5703.893992][   T73]      ipv6_add_addr+0x411/0x2000
[ 5703.893992][   T73]      inet6_addr_add+0x30e/0xa40
[ 5703.893992][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5703.893992][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5703.893992][   T73]      netlink_rcv_skb+0x130/0x360
[ 5703.893992][   T73]      netlink_unicast+0x449/0x710
[ 5703.893992][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5703.893992][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5703.893992][   T73]      ___sys_sendmsg+0xee/0x170
[ 5703.893992][   T73]      __sys_sendmsg+0xcd/0x170
[ 5703.893992][   T73]      do_syscall_64+0xc6/0x1e0
[ 5703.893992][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5703.893992][   T73] 
[ 5703.896026][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5703.896026][   T73]      netdev_get_by_index+0x5e/0x80
[ 5703.896026][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5703.896026][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5703.896026][   T73]      ip6_route_add+0x1c/0x140
[ 5703.896026][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5703.896026][   T73]      addrconf_add_dev+0xe2/0x170
[ 5703.896026][   T73]      inet6_addr_add+0x12f/0xa40
[ 5703.896026][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5703.896026][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5703.896026][   T73]      netlink_rcv_skb+0x130/0x360
[ 5703.896026][   T73]      netlink_unicast+0x449/0x710
[ 5703.896026][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5703.896026][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5703.896026][   T73]      ___sys_sendmsg+0xee/0x170
[ 5703.896026][   T73]      __sys_sendmsg+0xcd/0x170
[ 5703.896026][   T73]      do_syscall_64+0xc6/0x1e0
[ 5703.896026][   T73] 
[ 5703.898033][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5703.898033][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5703.898033][   T73]      ipv6_find_idev+0x102/0x170
[ 5703.898033][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5703.898033][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5703.898033][   T73]      netlink_rcv_skb+0x130/0x360
[ 5703.898033][   T73]      netlink_unicast+0x449/0x710
[ 5703.898033][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5703.898033][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5703.898033][   T73]      ___sys_sendmsg+0xee/0x170
[ 5703.898033][   T73]      __sys_sendmsg+0xcd/0x170
[ 5703.898033][   T73]      do_syscall_64+0xc6/0x1e0
[ 5703.898033][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5703.898033][   T73] 
[ 5703.899615][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5703.899615][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5703.899615][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5703.899615][   T73]      ipv6_find_idev+0x102/0x170
[ 5703.899615][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5703.899615][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5703.899615][   T73]      netlink_rcv_skb+0x130/0x360
[ 5703.899615][   T73]      netlink_unicast+0x449/0x710
[ 5703.899615][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5703.899615][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5703.899615][   T73]      ___sys_sendmsg+0xee/0x170
[ 5703.899615][   T73]      __sys_sendmsg+0xcd/0x170
[ 5703.899615][   T73]      do_syscall_64+0xc6/0x1e0
[ 5703.899615][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5703.899615][   T73] 
[ 5703.901354][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5703.901644][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5703.901644][   T73]      netdev_get_by_index+0x5e/0x80
[ 5703.901644][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5703.901644][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5703.901644][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5703.901644][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5703.901644][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5703.901644][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5703.901644][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5703.901644][   T73]      addrconf_dad_begin+0x310/0x670
[ 5703.901644][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5703.901644][   T73]      process_one_work+0x84d/0x18a0
[ 5703.901644][   T73]      worker_thread+0x587/0xd30
[ 5703.901644][   T73]      kthread+0x28a/0x350
[ 5703.901644][   T73]      ret_from_fork+0x31/0x70
[ 5703.901644][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5703.901644][   T73] 
[ 5703.903602][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5703.903602][   T73]      netdev_get_by_index+0x5e/0x80
[ 5703.903602][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5703.903602][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5703.903602][   T73]      ip6_route_add+0x1c/0x140
[ 5703.903602][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5703.903602][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5703.903602][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5703.903602][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5703.903602][   T73]      netlink_rcv_skb+0x130/0x360
[ 5703.903602][   T73]      netlink_unicast+0x449/0x710
[ 5703.903602][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5703.903602][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5703.903602][   T73]      ___sys_sendmsg+0xee/0x170
[ 5703.903602][   T73]      __sys_sendmsg+0xcd/0x170
[ 5703.903602][   T73]      do_syscall_64+0xc6/0x1e0
[ 5703.903602][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5703.903602][   T73] 
[ 5703.905650][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5703.905650][   T73]      netdev_get_by_index+0x5e/0x80
[ 5703.905650][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5703.905650][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5703.905650][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5703.905650][   T73]      ipv6_add_addr+0x411/0x2000
[ 5703.905650][   T73]      inet6_addr_add+0x30e/0xa40
[ 5703.905650][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5703.905650][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5703.905650][   T73]      netlink_rcv_skb+0x130/0x360
[ 5703.905650][   T73]      netlink_unicast+0x449/0x710
[ 5703.905650][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5703.905650][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5703.905650][   T73]      ___sys_sendmsg+0xee/0x170
[ 5703.905650][   T73]      __sys_sendmsg+0xcd/0x170
[ 5703.905650][   T73]      do_syscall_64+0xc6/0x1e0
[ 5703.905650][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5703.905650][   T73] 
[ 5703.907704][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5703.907704][   T73]      netdev_get_by_index+0x5e/0x80
[ 5703.907704][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5703.907704][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5703.907704][   T73]      ip6_route_add+0x1c/0x140
[ 5703.907704][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5703.907704][   T73]      addrconf_add_dev+0xe2/0x170
[ 5703.907704][   T73]      inet6_addr_add+0x12f/0xa40
[ 5703.907704][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5703.907704][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5703.907704][   T73]      netlink_rcv_skb+0x130/0x360
[ 5703.907704][   T73]      netlink_unicast+0x449/0x710
[ 5703.907704][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5703.907704][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5703.907704][   T73]      ___sys_sendmsg+0xee/0x170
[ 5703.907704][   T73]      __sys_sendmsg+0xcd/0x170
[ 5703.907704][   T73]      do_syscall_64+0xc6/0x1e0
[ 5703.907704][   T73] 
[ 5703.909711][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5703.909711][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5703.909711][   T73]      ipv6_find_idev+0x102/0x170
[ 5703.909711][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5703.909711][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5703.909711][   T73]      netlink_rcv_skb+0x130/0x360
[ 5703.909711][   T73]      netlink_unicast+0x449/0x710
[ 5703.909711][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5703.909711][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5703.909711][   T73]      ___sys_sendmsg+0xee/0x170
[ 5703.909711][   T73]      __sys_sendmsg+0xcd/0x170
[ 5703.909711][   T73]      do_syscall_64+0xc6/0x1e0
[ 5703.909711][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5703.909711][   T73] 
[ 5703.911336][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5703.911336][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5703.911336][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5703.911336][   T73]      ipv6_find_idev+0x102/0x170
[ 5703.911336][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5703.911336][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5703.911336][   T73]      netlink_rcv_skb+0x130/0x360
[ 5703.911336][   T73]      netlink_unicast+0x449/0x710
[ 5703.911336][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5703.911336][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5703.911336][   T73]      ___sys_sendmsg+0xee/0x170
[ 5703.911336][   T73]      __sys_sendmsg+0xcd/0x170
[ 5703.911336][   T73]      do_syscall_64+0xc6/0x1e0
[ 5703.911336][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5703.911336][   T73] 
[ 5703.913073][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5703.913345][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5703.913345][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5703.913345][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5703.913345][   T73]      fib6_nh_init+0xa22/0x1580
[ 5703.913345][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5703.913345][   T73]      ip6_route_add+0x1c/0x140
[ 5703.913345][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5703.913345][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5703.913345][   T73]      netlink_rcv_skb+0x130/0x360
[ 5703.913345][   T73]      netlink_unicast+0x449/0x710
[ 5703.913345][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5703.913345][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5703.913345][   T73]      ___sys_sendmsg+0xee/0x170
[ 5703.913345][   T73]      __sys_sendmsg+0xcd/0x170
[ 5703.913345][   T73]      do_syscall_64+0xc6/0x1e0
[ 5703.913345][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5703.913345][   T73] 
[ 5703.915454][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5703.915454][   T73]      dst_init+0x84/0x4a0
[ 5703.915454][   T73]      dst_alloc+0x97/0x150
[ 5703.915454][   T73]      ip6_dst_alloc+0x23/0x90
[ 5703.915454][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5703.915454][   T73]      ip6_pol_route+0x56f/0x840
[ 5703.915454][   T73]      fib6_rule_lookup+0x456/0x630
[ 5703.915454][   T73]      ip6_route_input+0x59c/0xa50
[ 5703.915454][   T73]      ipv6_rcv+0x397/0x810
[ 5703.915454][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5703.915454][   T73]      process_backlog+0x101/0x620
[ 5703.915454][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5703.915454][   T73]      net_rx_action+0x495/0xbe0
[ 5703.915454][   T73]      __do_softirq+0x1b5/0x7f6
[ 5703.915454][   T73] 
[ 5703.917318][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5703.917318][   T73]      netdev_get_by_index+0x5e/0x80
[ 5703.917318][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5703.917318][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5703.917318][   T73]      ip6_route_add+0x1c/0x140
[ 5703.917318][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5703.917318][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5703.917318][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5703.917318][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5703.917318][   T73]      netlink_rcv_skb+0x130/0x360
[ 5703.917318][   T73]      netlink_unicast+0x449/0x710
[ 5703.917318][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5703.917318][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5703.917318][   T73]      ___sys_sendmsg+0xee/0x170
[ 5703.917318][   T73]      __sys_sendmsg+0xcd/0x170
[ 5703.917318][   T73]      do_syscall_64+0xc6/0x1e0
[ 5703.917318][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5703.917318][   T73] 
[ 5703.919663][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5703.919663][   T73]      netdev_get_by_index+0x5e/0x80
[ 5703.919663][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5703.919663][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5703.919663][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5703.919663][   T73]      ipv6_add_addr+0x411/0x2000
[ 5703.919663][   T73]      inet6_addr_add+0x30e/0xa40
[ 5703.919663][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5703.919663][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5703.919663][   T73]      netlink_rcv_skb+0x130/0x360
[ 5703.919663][   T73]      netlink_unicast+0x449/0x710
[ 5703.919663][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5703.919663][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5703.919663][   T73]      ___sys_sendmsg+0xee/0x170
[ 5703.919663][   T73]      __sys_sendmsg+0xcd/0x170
[ 5703.919663][   T73]      do_syscall_64+0xc6/0x1e0
[ 5703.919663][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5703.919663][   T73] 
[ 5703.921961][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5703.921961][   T73]      netdev_get_by_index+0x5e/0x80
[ 5703.921961][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5703.921961][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5703.921961][   T73]      ip6_route_add+0x1c/0x140
[ 5703.921961][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5703.921961][   T73]      addrconf_add_dev+0xe2/0x170
[ 5703.921961][   T73]      inet6_addr_add+0x12f/0xa40
[ 5703.921961][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5703.921961][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5703.921961][   T73]      netlink_rcv_skb+0x130/0x360
[ 5703.921961][   T73]      netlink_unicast+0x449/0x710
[ 5703.921961][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5703.921961][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5703.921961][   T73]      ___sys_sendmsg+0xee/0x170
[ 5703.921961][   T73]      __sys_sendmsg+0xcd/0x170
[ 5703.921961][   T73]      do_syscall_64+0xc6/0x1e0
[ 5703.921961][   T73] 
[ 5703.924221][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5703.924221][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5703.924221][   T73]      ipv6_find_idev+0x102/0x170
[ 5703.924221][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5703.924221][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5703.924221][   T73]      netlink_rcv_skb+0x130/0x360
[ 5703.924221][   T73]      netlink_unicast+0x449/0x710
[ 5703.924221][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5703.924221][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5703.924221][   T73]      ___sys_sendmsg+0xee/0x170
[ 5703.924221][   T73]      __sys_sendmsg+0xcd/0x170
[ 5703.924221][   T73]      do_syscall_64+0xc6/0x1e0
[ 5703.924221][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5703.924221][   T73] 
[ 5703.925982][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5703.925982][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5703.925982][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5703.925982][   T73]      ipv6_find_idev+0x102/0x170
[ 5703.925982][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5703.925982][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5703.925982][   T73]      netlink_rcv_skb+0x130/0x360
[ 5703.925982][   T73]      netlink_unicast+0x449/0x710
[ 5703.925982][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5703.925982][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5703.925982][   T73]      ___sys_sendmsg+0xee/0x170
[ 5703.925982][   T73]      __sys_sendmsg+0xcd/0x170
[ 5703.925982][   T73]      do_syscall_64+0xc6/0x1e0
[ 5703.925982][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5703.925982][   T73] 
[ 5703.927880][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5703.928177][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5703.928177][   T73]      netdev_get_by_index+0x5e/0x80
[ 5703.928177][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5703.928177][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5703.928177][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5703.928177][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5703.928177][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5703.928177][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5703.928177][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5703.928177][   T73]      addrconf_dad_begin+0x310/0x670
[ 5703.928177][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5703.928177][   T73]      process_one_work+0x84d/0x18a0
[ 5703.928177][   T73]      worker_thread+0x587/0xd30
[ 5703.928177][   T73]      kthread+0x28a/0x350
[ 5703.928177][   T73]      ret_from_fork+0x31/0x70
[ 5703.928177][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5703.928177][   T73] 
[ 5703.930439][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5703.930439][   T73]      netdev_get_by_index+0x5e/0x80
[ 5703.930439][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5703.930439][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5703.930439][   T73]      ip6_route_add+0x1c/0x140
[ 5703.930439][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5703.930439][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5703.930439][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5703.930439][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5703.930439][   T73]      netlink_rcv_skb+0x130/0x360
[ 5703.930439][   T73]      netlink_unicast+0x449/0x710
[ 5703.930439][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5703.930439][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5703.930439][   T73]      ___sys_sendmsg+0xee/0x170
[ 5703.930439][   T73]      __sys_sendmsg+0xcd/0x170
[ 5703.930439][   T73]      do_syscall_64+0xc6/0x1e0
[ 5703.930439][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5703.930439][   T73] 
[ 5703.932738][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5703.932738][   T73]      netdev_get_by_index+0x5e/0x80
[ 5703.932738][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5703.932738][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5703.932738][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5703.932738][   T73]      ipv6_add_addr+0x411/0x2000
[ 5703.932738][   T73]      inet6_addr_add+0x30e/0xa40
[ 5703.932738][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5703.932738][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5703.932738][   T73]      netlink_rcv_skb+0x130/0x360
[ 5703.932738][   T73]      netlink_unicast+0x449/0x710
[ 5703.932738][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5703.932738][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5703.932738][   T73]      ___sys_sendmsg+0xee/0x170
[ 5703.932738][   T73]      __sys_sendmsg+0xcd/0x170
[ 5703.932738][   T73]      do_syscall_64+0xc6/0x1e0
[ 5703.932738][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5703.932738][   T73] 
[ 5703.935028][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5703.935028][   T73]      netdev_get_by_index+0x5e/0x80
[ 5703.935028][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5703.935028][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5703.935028][   T73]      ip6_route_add+0x1c/0x140
[ 5703.935028][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5703.935028][   T73]      addrconf_add_dev+0xe2/0x170
[ 5703.935028][   T73]      inet6_addr_add+0x12f/0xa40
[ 5703.935028][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5703.935028][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5703.935028][   T73]      netlink_rcv_skb+0x130/0x360
[ 5703.935028][   T73]      netlink_unicast+0x449/0x710
[ 5703.935028][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5703.935028][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5703.935028][   T73]      ___sys_sendmsg+0xee/0x170
[ 5703.935028][   T73]      __sys_sendmsg+0xcd/0x170
[ 5703.935028][   T73]      do_syscall_64+0xc6/0x1e0
[ 5703.935028][   T73] 
[ 5703.937211][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5703.937211][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5703.937211][   T73]      ipv6_find_idev+0x102/0x170
[ 5703.937211][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5703.937211][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5703.937211][   T73]      netlink_rcv_skb+0x130/0x360
[ 5703.937211][   T73]      netlink_unicast+0x449/0x710
[ 5703.937211][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5703.937211][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5703.937211][   T73]      ___sys_sendmsg+0xee/0x170
[ 5703.937211][   T73]      __sys_sendmsg+0xcd/0x170
[ 5703.937211][   T73]      do_syscall_64+0xc6/0x1e0
[ 5703.937211][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5703.937211][   T73] 
[ 5703.939043][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5703.939043][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5703.939043][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5703.939043][   T73]      ipv6_find_idev+0x102/0x170
[ 5703.939043][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5703.939043][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5703.939043][   T73]      netlink_rcv_skb+0x130/0x360
[ 5703.939043][   T73]      netlink_unicast+0x449/0x710
[ 5703.939043][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5703.939043][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5703.939043][   T73]      ___sys_sendmsg+0xee/0x170
[ 5703.939043][   T73]      __sys_sendmsg+0xcd/0x170
[ 5703.939043][   T73]      do_syscall_64+0xc6/0x1e0
[ 5703.939043][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5703.939043][   T73] 
[ 5714.191761][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5714.192283][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5714.192283][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5714.192283][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5714.192283][   T73]      fib6_nh_init+0xa22/0x1580
[ 5714.192283][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5714.192283][   T73]      ip6_route_add+0x1c/0x140
[ 5714.192283][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5714.192283][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5714.192283][   T73]      netlink_rcv_skb+0x130/0x360
[ 5714.192283][   T73]      netlink_unicast+0x449/0x710
[ 5714.192283][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5714.192283][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5714.192283][   T73]      ___sys_sendmsg+0xee/0x170
[ 5714.192283][   T73]      __sys_sendmsg+0xcd/0x170
[ 5714.192283][   T73]      do_syscall_64+0xc6/0x1e0
[ 5714.192283][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5714.192283][   T73] 
[ 5714.194222][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5714.194222][   T73]      dst_init+0x84/0x4a0
[ 5714.194222][   T73]      dst_alloc+0x97/0x150
[ 5714.194222][   T73]      ip6_dst_alloc+0x23/0x90
[ 5714.194222][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5714.194222][   T73]      ip6_pol_route+0x56f/0x840
[ 5714.194222][   T73]      fib6_rule_lookup+0x456/0x630
[ 5714.194222][   T73]      ip6_route_input+0x59c/0xa50
[ 5714.194222][   T73]      ipv6_rcv+0x397/0x810
[ 5714.194222][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5714.194222][   T73]      process_backlog+0x101/0x620
[ 5714.194222][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5714.194222][   T73]      net_rx_action+0x495/0xbe0
[ 5714.194222][   T73]      __do_softirq+0x1b5/0x7f6
[ 5714.194222][   T73] 
[ 5714.195902][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5714.195902][   T73]      netdev_get_by_index+0x5e/0x80
[ 5714.195902][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5714.195902][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5714.195902][   T73]      ip6_route_add+0x1c/0x140
[ 5714.195902][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5714.195902][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5714.195902][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5714.195902][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5714.195902][   T73]      netlink_rcv_skb+0x130/0x360
[ 5714.195902][   T73]      netlink_unicast+0x449/0x710
[ 5714.195902][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5714.195902][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5714.195902][   T73]      ___sys_sendmsg+0xee/0x170
[ 5714.195902][   T73]      __sys_sendmsg+0xcd/0x170
[ 5714.195902][   T73]      do_syscall_64+0xc6/0x1e0
[ 5714.195902][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5714.195902][   T73] 
[ 5714.197961][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5714.197961][   T73]      netdev_get_by_index+0x5e/0x80
[ 5714.197961][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5714.197961][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5714.197961][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5714.197961][   T73]      ipv6_add_addr+0x411/0x2000
[ 5714.197961][   T73]      inet6_addr_add+0x30e/0xa40
[ 5714.197961][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5714.197961][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5714.197961][   T73]      netlink_rcv_skb+0x130/0x360
[ 5714.197961][   T73]      netlink_unicast+0x449/0x710
[ 5714.197961][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5714.197961][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5714.197961][   T73]      ___sys_sendmsg+0xee/0x170
[ 5714.197961][   T73]      __sys_sendmsg+0xcd/0x170
[ 5714.197961][   T73]      do_syscall_64+0xc6/0x1e0
[ 5714.197961][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5714.197961][   T73] 
[ 5714.199997][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5714.199997][   T73]      netdev_get_by_index+0x5e/0x80
[ 5714.199997][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5714.199997][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5714.199997][   T73]      ip6_route_add+0x1c/0x140
[ 5714.199997][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5714.199997][   T73]      addrconf_add_dev+0xe2/0x170
[ 5714.199997][   T73]      inet6_addr_add+0x12f/0xa40
[ 5714.199997][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5714.199997][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5714.199997][   T73]      netlink_rcv_skb+0x130/0x360
[ 5714.199997][   T73]      netlink_unicast+0x449/0x710
[ 5714.199997][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5714.199997][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5714.199997][   T73]      ___sys_sendmsg+0xee/0x170
[ 5714.199997][   T73]      __sys_sendmsg+0xcd/0x170
[ 5714.199997][   T73]      do_syscall_64+0xc6/0x1e0
[ 5714.199997][   T73] 
[ 5714.202008][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5714.202008][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5714.202008][   T73]      ipv6_find_idev+0x102/0x170
[ 5714.202008][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5714.202008][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5714.202008][   T73]      netlink_rcv_skb+0x130/0x360
[ 5714.202008][   T73]      netlink_unicast+0x449/0x710
[ 5714.202008][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5714.202008][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5714.202008][   T73]      ___sys_sendmsg+0xee/0x170
[ 5714.202008][   T73]      __sys_sendmsg+0xcd/0x170
[ 5714.202008][   T73]      do_syscall_64+0xc6/0x1e0
[ 5714.202008][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5714.202008][   T73] 
[ 5714.203583][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5714.203583][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5714.203583][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5714.203583][   T73]      ipv6_find_idev+0x102/0x170
[ 5714.203583][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5714.203583][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5714.203583][   T73]      netlink_rcv_skb+0x130/0x360
[ 5714.203583][   T73]      netlink_unicast+0x449/0x710
[ 5714.203583][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5714.203583][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5714.203583][   T73]      ___sys_sendmsg+0xee/0x170
[ 5714.203583][   T73]      __sys_sendmsg+0xcd/0x170
[ 5714.203583][   T73]      do_syscall_64+0xc6/0x1e0
[ 5714.203583][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5714.203583][   T73] 
[ 5714.205333][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5714.205612][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5714.205612][   T73]      netdev_get_by_index+0x5e/0x80
[ 5714.205612][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5714.205612][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5714.205612][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5714.205612][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5714.205612][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5714.205612][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5714.205612][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5714.205612][   T73]      addrconf_dad_begin+0x310/0x670
[ 5714.205612][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5714.205612][   T73]      process_one_work+0x84d/0x18a0
[ 5714.205612][   T73]      worker_thread+0x587/0xd30
[ 5714.205612][   T73]      kthread+0x28a/0x350
[ 5714.205612][   T73]      ret_from_fork+0x31/0x70
[ 5714.205612][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5714.205612][   T73] 
[ 5714.207582][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5714.207582][   T73]      netdev_get_by_index+0x5e/0x80
[ 5714.207582][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5714.207582][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5714.207582][   T73]      ip6_route_add+0x1c/0x140
[ 5714.207582][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5714.207582][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5714.207582][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5714.207582][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5714.207582][   T73]      netlink_rcv_skb+0x130/0x360
[ 5714.207582][   T73]      netlink_unicast+0x449/0x710
[ 5714.207582][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5714.207582][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5714.207582][   T73]      ___sys_sendmsg+0xee/0x170
[ 5714.207582][   T73]      __sys_sendmsg+0xcd/0x170
[ 5714.207582][   T73]      do_syscall_64+0xc6/0x1e0
[ 5714.207582][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5714.207582][   T73] 
[ 5714.209630][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5714.209630][   T73]      netdev_get_by_index+0x5e/0x80
[ 5714.209630][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5714.209630][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5714.209630][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5714.209630][   T73]      ipv6_add_addr+0x411/0x2000
[ 5714.209630][   T73]      inet6_addr_add+0x30e/0xa40
[ 5714.209630][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5714.209630][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5714.209630][   T73]      netlink_rcv_skb+0x130/0x360
[ 5714.209630][   T73]      netlink_unicast+0x449/0x710
[ 5714.209630][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5714.209630][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5714.209630][   T73]      ___sys_sendmsg+0xee/0x170
[ 5714.209630][   T73]      __sys_sendmsg+0xcd/0x170
[ 5714.209630][   T73]      do_syscall_64+0xc6/0x1e0
[ 5714.209630][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5714.209630][   T73] 
[ 5714.211656][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5714.211656][   T73]      netdev_get_by_index+0x5e/0x80
[ 5714.211656][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5714.211656][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5714.211656][   T73]      ip6_route_add+0x1c/0x140
[ 5714.211656][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5714.211656][   T73]      addrconf_add_dev+0xe2/0x170
[ 5714.211656][   T73]      inet6_addr_add+0x12f/0xa40
[ 5714.211656][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5714.211656][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5714.211656][   T73]      netlink_rcv_skb+0x130/0x360
[ 5714.211656][   T73]      netlink_unicast+0x449/0x710
[ 5714.211656][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5714.211656][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5714.211656][   T73]      ___sys_sendmsg+0xee/0x170
[ 5714.211656][   T73]      __sys_sendmsg+0xcd/0x170
[ 5714.211656][   T73]      do_syscall_64+0xc6/0x1e0
[ 5714.211656][   T73] 
[ 5714.213664][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5714.213664][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5714.213664][   T73]      ipv6_find_idev+0x102/0x170
[ 5714.213664][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5714.213664][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5714.213664][   T73]      netlink_rcv_skb+0x130/0x360
[ 5714.213664][   T73]      netlink_unicast+0x449/0x710
[ 5714.213664][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5714.213664][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5714.213664][   T73]      ___sys_sendmsg+0xee/0x170
[ 5714.213664][   T73]      __sys_sendmsg+0xcd/0x170
[ 5714.213664][   T73]      do_syscall_64+0xc6/0x1e0
[ 5714.213664][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5714.213664][   T73] 
[ 5714.215228][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5714.215228][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5714.215228][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5714.215228][   T73]      ipv6_find_idev+0x102/0x170
[ 5714.215228][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5714.215228][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5714.215228][   T73]      netlink_rcv_skb+0x130/0x360
[ 5714.215228][   T73]      netlink_unicast+0x449/0x710
[ 5714.215228][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5714.215228][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5714.215228][   T73]      ___sys_sendmsg+0xee/0x170
[ 5714.215228][   T73]      __sys_sendmsg+0xcd/0x170
[ 5714.215228][   T73]      do_syscall_64+0xc6/0x1e0
[ 5714.215228][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5714.215228][   T73] 
[ 5714.216943][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5714.217214][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5714.217214][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5714.217214][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5714.217214][   T73]      fib6_nh_init+0xa22/0x1580
[ 5714.217214][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5714.217214][   T73]      ip6_route_add+0x1c/0x140
[ 5714.217214][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5714.217214][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5714.217214][   T73]      netlink_rcv_skb+0x130/0x360
[ 5714.217214][   T73]      netlink_unicast+0x449/0x710
[ 5714.217214][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5714.217214][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5714.217214][   T73]      ___sys_sendmsg+0xee/0x170
[ 5714.217214][   T73]      __sys_sendmsg+0xcd/0x170
[ 5714.217214][   T73]      do_syscall_64+0xc6/0x1e0
[ 5714.217214][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5714.217214][   T73] 
[ 5714.219322][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5714.219322][   T73]      dst_init+0x84/0x4a0
[ 5714.219322][   T73]      dst_alloc+0x97/0x150
[ 5714.219322][   T73]      ip6_dst_alloc+0x23/0x90
[ 5714.219322][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5714.219322][   T73]      ip6_pol_route+0x56f/0x840
[ 5714.219322][   T73]      fib6_rule_lookup+0x456/0x630
[ 5714.219322][   T73]      ip6_route_input+0x59c/0xa50
[ 5714.219322][   T73]      ipv6_rcv+0x397/0x810
[ 5714.219322][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5714.219322][   T73]      process_backlog+0x101/0x620
[ 5714.219322][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5714.219322][   T73]      net_rx_action+0x495/0xbe0
[ 5714.219322][   T73]      __do_softirq+0x1b5/0x7f6
[ 5714.219322][   T73] 
[ 5714.221229][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5714.221229][   T73]      netdev_get_by_index+0x5e/0x80
[ 5714.221229][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5714.221229][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5714.221229][   T73]      ip6_route_add+0x1c/0x140
[ 5714.221229][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5714.221229][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5714.221229][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5714.221229][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5714.221229][   T73]      netlink_rcv_skb+0x130/0x360
[ 5714.221229][   T73]      netlink_unicast+0x449/0x710
[ 5714.221229][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5714.221229][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5714.221229][   T73]      ___sys_sendmsg+0xee/0x170
[ 5714.221229][   T73]      __sys_sendmsg+0xcd/0x170
[ 5714.221229][   T73]      do_syscall_64+0xc6/0x1e0
[ 5714.221229][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5714.221229][   T73] 
[ 5714.223502][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5714.223502][   T73]      netdev_get_by_index+0x5e/0x80
[ 5714.223502][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5714.223502][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5714.223502][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5714.223502][   T73]      ipv6_add_addr+0x411/0x2000
[ 5714.223502][   T73]      inet6_addr_add+0x30e/0xa40
[ 5714.223502][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5714.223502][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5714.223502][   T73]      netlink_rcv_skb+0x130/0x360
[ 5714.223502][   T73]      netlink_unicast+0x449/0x710
[ 5714.223502][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5714.223502][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5714.223502][   T73]      ___sys_sendmsg+0xee/0x170
[ 5714.223502][   T73]      __sys_sendmsg+0xcd/0x170
[ 5714.223502][   T73]      do_syscall_64+0xc6/0x1e0
[ 5714.223502][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5714.223502][   T73] 
[ 5714.225782][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5714.225782][   T73]      netdev_get_by_index+0x5e/0x80
[ 5714.225782][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5714.225782][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5714.225782][   T73]      ip6_route_add+0x1c/0x140
[ 5714.225782][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5714.225782][   T73]      addrconf_add_dev+0xe2/0x170
[ 5714.225782][   T73]      inet6_addr_add+0x12f/0xa40
[ 5714.225782][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5714.225782][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5714.225782][   T73]      netlink_rcv_skb+0x130/0x360
[ 5714.225782][   T73]      netlink_unicast+0x449/0x710
[ 5714.225782][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5714.225782][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5714.225782][   T73]      ___sys_sendmsg+0xee/0x170
[ 5714.225782][   T73]      __sys_sendmsg+0xcd/0x170
[ 5714.225782][   T73]      do_syscall_64+0xc6/0x1e0
[ 5714.225782][   T73] 
[ 5714.228029][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5714.228029][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5714.228029][   T73]      ipv6_find_idev+0x102/0x170
[ 5714.228029][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5714.228029][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5714.228029][   T73]      netlink_rcv_skb+0x130/0x360
[ 5714.228029][   T73]      netlink_unicast+0x449/0x710
[ 5714.228029][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5714.228029][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5714.228029][   T73]      ___sys_sendmsg+0xee/0x170
[ 5714.228029][   T73]      __sys_sendmsg+0xcd/0x170
[ 5714.228029][   T73]      do_syscall_64+0xc6/0x1e0
[ 5714.228029][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5714.228029][   T73] 
[ 5714.229843][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5714.229843][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5714.229843][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5714.229843][   T73]      ipv6_find_idev+0x102/0x170
[ 5714.229843][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5714.229843][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5714.229843][   T73]      netlink_rcv_skb+0x130/0x360
[ 5714.229843][   T73]      netlink_unicast+0x449/0x710
[ 5714.229843][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5714.229843][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5714.229843][   T73]      ___sys_sendmsg+0xee/0x170
[ 5714.229843][   T73]      __sys_sendmsg+0xcd/0x170
[ 5714.229843][   T73]      do_syscall_64+0xc6/0x1e0
[ 5714.229843][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5714.229843][   T73] 
[ 5714.231740][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5714.232013][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5714.232013][   T73]      netdev_get_by_index+0x5e/0x80
[ 5714.232013][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5714.232013][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5714.232013][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5714.232013][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5714.232013][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5714.232013][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5714.232013][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5714.232013][   T73]      addrconf_dad_begin+0x310/0x670
[ 5714.232013][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5714.232013][   T73]      process_one_work+0x84d/0x18a0
[ 5714.232013][   T73]      worker_thread+0x587/0xd30
[ 5714.232013][   T73]      kthread+0x28a/0x350
[ 5714.232013][   T73]      ret_from_fork+0x31/0x70
[ 5714.232013][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5714.232013][   T73] 
[ 5714.234214][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5714.234214][   T73]      netdev_get_by_index+0x5e/0x80
[ 5714.234214][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5714.234214][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5714.234214][   T73]      ip6_route_add+0x1c/0x140
[ 5714.234214][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5714.234214][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5714.234214][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5714.234214][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5714.234214][   T73]      netlink_rcv_skb+0x130/0x360
[ 5714.234214][   T73]      netlink_unicast+0x449/0x710
[ 5714.234214][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5714.234214][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5714.234214][   T73]      ___sys_sendmsg+0xee/0x170
[ 5714.234214][   T73]      __sys_sendmsg+0xcd/0x170
[ 5714.234214][   T73]      do_syscall_64+0xc6/0x1e0
[ 5714.234214][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5714.234214][   T73] 
[ 5714.236484][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5714.236484][   T73]      netdev_get_by_index+0x5e/0x80
[ 5714.236484][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5714.236484][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5714.236484][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5714.236484][   T73]      ipv6_add_addr+0x411/0x2000
[ 5714.236484][   T73]      inet6_addr_add+0x30e/0xa40
[ 5714.236484][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5714.236484][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5714.236484][   T73]      netlink_rcv_skb+0x130/0x360
[ 5714.236484][   T73]      netlink_unicast+0x449/0x710
[ 5714.236484][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5714.236484][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5714.236484][   T73]      ___sys_sendmsg+0xee/0x170
[ 5714.236484][   T73]      __sys_sendmsg+0xcd/0x170
[ 5714.236484][   T73]      do_syscall_64+0xc6/0x1e0
[ 5714.236484][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5714.236484][   T73] 
[ 5714.238823][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5714.238823][   T73]      netdev_get_by_index+0x5e/0x80
[ 5714.238823][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5714.238823][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5714.238823][   T73]      ip6_route_add+0x1c/0x140
[ 5714.238823][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5714.238823][   T73]      addrconf_add_dev+0xe2/0x170
[ 5714.238823][   T73]      inet6_addr_add+0x12f/0xa40
[ 5714.238823][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5714.238823][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5714.238823][   T73]      netlink_rcv_skb+0x130/0x360
[ 5714.238823][   T73]      netlink_unicast+0x449/0x710
[ 5714.238823][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5714.238823][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5714.238823][   T73]      ___sys_sendmsg+0xee/0x170
[ 5714.238823][   T73]      __sys_sendmsg+0xcd/0x170
[ 5714.238823][   T73]      do_syscall_64+0xc6/0x1e0
[ 5714.238823][   T73] 
[ 5714.241001][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5714.241001][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5714.241001][   T73]      ipv6_find_idev+0x102/0x170
[ 5714.241001][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5714.241001][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5714.241001][   T73]      netlink_rcv_skb+0x130/0x360
[ 5714.241001][   T73]      netlink_unicast+0x449/0x710
[ 5714.241001][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5714.241001][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5714.241001][   T73]      ___sys_sendmsg+0xee/0x170
[ 5714.241001][   T73]      __sys_sendmsg+0xcd/0x170
[ 5714.241001][   T73]      do_syscall_64+0xc6/0x1e0
[ 5714.241001][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5714.241001][   T73] 
[ 5714.242747][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5714.242747][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5714.242747][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5714.242747][   T73]      ipv6_find_idev+0x102/0x170
[ 5714.242747][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5714.242747][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5714.242747][   T73]      netlink_rcv_skb+0x130/0x360
[ 5714.242747][   T73]      netlink_unicast+0x449/0x710
[ 5714.242747][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5714.242747][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5714.242747][   T73]      ___sys_sendmsg+0xee/0x170
[ 5714.242747][   T73]      __sys_sendmsg+0xcd/0x170
[ 5714.242747][   T73]      do_syscall_64+0xc6/0x1e0
[ 5714.242747][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5714.242747][   T73] 
[ 5724.495773][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5724.496268][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5724.496268][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5724.496268][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5724.496268][   T73]      fib6_nh_init+0xa22/0x1580
[ 5724.496268][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5724.496268][   T73]      ip6_route_add+0x1c/0x140
[ 5724.496268][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5724.496268][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5724.496268][   T73]      netlink_rcv_skb+0x130/0x360
[ 5724.496268][   T73]      netlink_unicast+0x449/0x710
[ 5724.496268][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5724.496268][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5724.496268][   T73]      ___sys_sendmsg+0xee/0x170
[ 5724.496268][   T73]      __sys_sendmsg+0xcd/0x170
[ 5724.496268][   T73]      do_syscall_64+0xc6/0x1e0
[ 5724.496268][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5724.496268][   T73] 
[ 5724.498218][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5724.498218][   T73]      dst_init+0x84/0x4a0
[ 5724.498218][   T73]      dst_alloc+0x97/0x150
[ 5724.498218][   T73]      ip6_dst_alloc+0x23/0x90
[ 5724.498218][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5724.498218][   T73]      ip6_pol_route+0x56f/0x840
[ 5724.498218][   T73]      fib6_rule_lookup+0x456/0x630
[ 5724.498218][   T73]      ip6_route_input+0x59c/0xa50
[ 5724.498218][   T73]      ipv6_rcv+0x397/0x810
[ 5724.498218][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5724.498218][   T73]      process_backlog+0x101/0x620
[ 5724.498218][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5724.498218][   T73]      net_rx_action+0x495/0xbe0
[ 5724.498218][   T73]      __do_softirq+0x1b5/0x7f6
[ 5724.498218][   T73] 
[ 5724.499888][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5724.499888][   T73]      netdev_get_by_index+0x5e/0x80
[ 5724.499888][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5724.499888][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5724.499888][   T73]      ip6_route_add+0x1c/0x140
[ 5724.499888][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5724.499888][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5724.499888][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5724.499888][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5724.499888][   T73]      netlink_rcv_skb+0x130/0x360
[ 5724.499888][   T73]      netlink_unicast+0x449/0x710
[ 5724.499888][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5724.499888][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5724.499888][   T73]      ___sys_sendmsg+0xee/0x170
[ 5724.499888][   T73]      __sys_sendmsg+0xcd/0x170
[ 5724.499888][   T73]      do_syscall_64+0xc6/0x1e0
[ 5724.499888][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5724.499888][   T73] 
[ 5724.501934][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5724.501934][   T73]      netdev_get_by_index+0x5e/0x80
[ 5724.501934][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5724.501934][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5724.501934][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5724.501934][   T73]      ipv6_add_addr+0x411/0x2000
[ 5724.501934][   T73]      inet6_addr_add+0x30e/0xa40
[ 5724.501934][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5724.501934][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5724.501934][   T73]      netlink_rcv_skb+0x130/0x360
[ 5724.501934][   T73]      netlink_unicast+0x449/0x710
[ 5724.501934][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5724.501934][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5724.501934][   T73]      ___sys_sendmsg+0xee/0x170
[ 5724.501934][   T73]      __sys_sendmsg+0xcd/0x170
[ 5724.501934][   T73]      do_syscall_64+0xc6/0x1e0
[ 5724.501934][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5724.501934][   T73] 
[ 5724.503974][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5724.503974][   T73]      netdev_get_by_index+0x5e/0x80
[ 5724.503974][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5724.503974][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5724.503974][   T73]      ip6_route_add+0x1c/0x140
[ 5724.503974][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5724.503974][   T73]      addrconf_add_dev+0xe2/0x170
[ 5724.503974][   T73]      inet6_addr_add+0x12f/0xa40
[ 5724.503974][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5724.503974][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5724.503974][   T73]      netlink_rcv_skb+0x130/0x360
[ 5724.503974][   T73]      netlink_unicast+0x449/0x710
[ 5724.503974][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5724.503974][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5724.503974][   T73]      ___sys_sendmsg+0xee/0x170
[ 5724.503974][   T73]      __sys_sendmsg+0xcd/0x170
[ 5724.503974][   T73]      do_syscall_64+0xc6/0x1e0
[ 5724.503974][   T73] 
[ 5724.505967][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5724.505967][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5724.505967][   T73]      ipv6_find_idev+0x102/0x170
[ 5724.505967][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5724.505967][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5724.505967][   T73]      netlink_rcv_skb+0x130/0x360
[ 5724.505967][   T73]      netlink_unicast+0x449/0x710
[ 5724.505967][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5724.505967][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5724.505967][   T73]      ___sys_sendmsg+0xee/0x170
[ 5724.505967][   T73]      __sys_sendmsg+0xcd/0x170
[ 5724.505967][   T73]      do_syscall_64+0xc6/0x1e0
[ 5724.505967][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5724.505967][   T73] 
[ 5724.507539][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5724.507539][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5724.507539][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5724.507539][   T73]      ipv6_find_idev+0x102/0x170
[ 5724.507539][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5724.507539][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5724.507539][   T73]      netlink_rcv_skb+0x130/0x360
[ 5724.507539][   T73]      netlink_unicast+0x449/0x710
[ 5724.507539][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5724.507539][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5724.507539][   T73]      ___sys_sendmsg+0xee/0x170
[ 5724.507539][   T73]      __sys_sendmsg+0xcd/0x170
[ 5724.507539][   T73]      do_syscall_64+0xc6/0x1e0
[ 5724.507539][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5724.507539][   T73] 
[ 5724.509268][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5724.509556][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5724.509556][   T73]      netdev_get_by_index+0x5e/0x80
[ 5724.509556][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5724.509556][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5724.509556][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5724.509556][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5724.509556][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5724.509556][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5724.509556][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5724.509556][   T73]      addrconf_dad_begin+0x310/0x670
[ 5724.509556][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5724.509556][   T73]      process_one_work+0x84d/0x18a0
[ 5724.509556][   T73]      worker_thread+0x587/0xd30
[ 5724.509556][   T73]      kthread+0x28a/0x350
[ 5724.509556][   T73]      ret_from_fork+0x31/0x70
[ 5724.509556][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5724.509556][   T73] 
[ 5724.511508][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5724.511508][   T73]      netdev_get_by_index+0x5e/0x80
[ 5724.511508][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5724.511508][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5724.511508][   T73]      ip6_route_add+0x1c/0x140
[ 5724.511508][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5724.511508][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5724.511508][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5724.511508][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5724.511508][   T73]      netlink_rcv_skb+0x130/0x360
[ 5724.511508][   T73]      netlink_unicast+0x449/0x710
[ 5724.511508][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5724.511508][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5724.511508][   T73]      ___sys_sendmsg+0xee/0x170
[ 5724.511508][   T73]      __sys_sendmsg+0xcd/0x170
[ 5724.511508][   T73]      do_syscall_64+0xc6/0x1e0
[ 5724.511508][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5724.511508][   T73] 
[ 5724.513552][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5724.513552][   T73]      netdev_get_by_index+0x5e/0x80
[ 5724.513552][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5724.513552][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5724.513552][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5724.513552][   T73]      ipv6_add_addr+0x411/0x2000
[ 5724.513552][   T73]      inet6_addr_add+0x30e/0xa40
[ 5724.513552][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5724.513552][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5724.513552][   T73]      netlink_rcv_skb+0x130/0x360
[ 5724.513552][   T73]      netlink_unicast+0x449/0x710
[ 5724.513552][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5724.513552][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5724.513552][   T73]      ___sys_sendmsg+0xee/0x170
[ 5724.513552][   T73]      __sys_sendmsg+0xcd/0x170
[ 5724.513552][   T73]      do_syscall_64+0xc6/0x1e0
[ 5724.513552][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5724.513552][   T73] 
[ 5724.515578][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5724.515578][   T73]      netdev_get_by_index+0x5e/0x80
[ 5724.515578][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5724.515578][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5724.515578][   T73]      ip6_route_add+0x1c/0x140
[ 5724.515578][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5724.515578][   T73]      addrconf_add_dev+0xe2/0x170
[ 5724.515578][   T73]      inet6_addr_add+0x12f/0xa40
[ 5724.515578][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5724.515578][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5724.515578][   T73]      netlink_rcv_skb+0x130/0x360
[ 5724.515578][   T73]      netlink_unicast+0x449/0x710
[ 5724.515578][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5724.515578][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5724.515578][   T73]      ___sys_sendmsg+0xee/0x170
[ 5724.515578][   T73]      __sys_sendmsg+0xcd/0x170
[ 5724.515578][   T73]      do_syscall_64+0xc6/0x1e0
[ 5724.515578][   T73] 
[ 5724.517578][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5724.517578][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5724.517578][   T73]      ipv6_find_idev+0x102/0x170
[ 5724.517578][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5724.517578][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5724.517578][   T73]      netlink_rcv_skb+0x130/0x360
[ 5724.517578][   T73]      netlink_unicast+0x449/0x710
[ 5724.517578][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5724.517578][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5724.517578][   T73]      ___sys_sendmsg+0xee/0x170
[ 5724.517578][   T73]      __sys_sendmsg+0xcd/0x170
[ 5724.517578][   T73]      do_syscall_64+0xc6/0x1e0
[ 5724.517578][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5724.517578][   T73] 
[ 5724.519152][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5724.519152][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5724.519152][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5724.519152][   T73]      ipv6_find_idev+0x102/0x170
[ 5724.519152][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5724.519152][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5724.519152][   T73]      netlink_rcv_skb+0x130/0x360
[ 5724.519152][   T73]      netlink_unicast+0x449/0x710
[ 5724.519152][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5724.519152][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5724.519152][   T73]      ___sys_sendmsg+0xee/0x170
[ 5724.519152][   T73]      __sys_sendmsg+0xcd/0x170
[ 5724.519152][   T73]      do_syscall_64+0xc6/0x1e0
[ 5724.519152][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5724.519152][   T73] 
[ 5724.520877][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5724.521156][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5724.521156][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5724.521156][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5724.521156][   T73]      fib6_nh_init+0xa22/0x1580
[ 5724.521156][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5724.521156][   T73]      ip6_route_add+0x1c/0x140
[ 5724.521156][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5724.521156][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5724.521156][   T73]      netlink_rcv_skb+0x130/0x360
[ 5724.521156][   T73]      netlink_unicast+0x449/0x710
[ 5724.521156][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5724.521156][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5724.521156][   T73]      ___sys_sendmsg+0xee/0x170
[ 5724.521156][   T73]      __sys_sendmsg+0xcd/0x170
[ 5724.521156][   T73]      do_syscall_64+0xc6/0x1e0
[ 5724.521156][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5724.521156][   T73] 
[ 5724.523253][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5724.523253][   T73]      dst_init+0x84/0x4a0
[ 5724.523253][   T73]      dst_alloc+0x97/0x150
[ 5724.523253][   T73]      ip6_dst_alloc+0x23/0x90
[ 5724.523253][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5724.523253][   T73]      ip6_pol_route+0x56f/0x840
[ 5724.523253][   T73]      fib6_rule_lookup+0x456/0x630
[ 5724.523253][   T73]      ip6_route_input+0x59c/0xa50
[ 5724.523253][   T73]      ipv6_rcv+0x397/0x810
[ 5724.523253][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5724.523253][   T73]      process_backlog+0x101/0x620
[ 5724.523253][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5724.523253][   T73]      net_rx_action+0x495/0xbe0
[ 5724.523253][   T73]      __do_softirq+0x1b5/0x7f6
[ 5724.523253][   T73] 
[ 5724.525679][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5724.525679][   T73]      netdev_get_by_index+0x5e/0x80
[ 5724.525679][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5724.525679][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5724.525679][   T73]      ip6_route_add+0x1c/0x140
[ 5724.525679][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5724.525679][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5724.525679][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5724.525679][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5724.525679][   T73]      netlink_rcv_skb+0x130/0x360
[ 5724.525679][   T73]      netlink_unicast+0x449/0x710
[ 5724.525679][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5724.525679][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5724.525679][   T73]      ___sys_sendmsg+0xee/0x170
[ 5724.525679][   T73]      __sys_sendmsg+0xcd/0x170
[ 5724.525679][   T73]      do_syscall_64+0xc6/0x1e0
[ 5724.525679][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5724.525679][   T73] 
[ 5724.527971][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5724.527971][   T73]      netdev_get_by_index+0x5e/0x80
[ 5724.527971][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5724.527971][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5724.527971][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5724.527971][   T73]      ipv6_add_addr+0x411/0x2000
[ 5724.527971][   T73]      inet6_addr_add+0x30e/0xa40
[ 5724.527971][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5724.527971][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5724.527971][   T73]      netlink_rcv_skb+0x130/0x360
[ 5724.527971][   T73]      netlink_unicast+0x449/0x710
[ 5724.527971][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5724.527971][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5724.527971][   T73]      ___sys_sendmsg+0xee/0x170
[ 5724.527971][   T73]      __sys_sendmsg+0xcd/0x170
[ 5724.527971][   T73]      do_syscall_64+0xc6/0x1e0
[ 5724.527971][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5724.527971][   T73] 
[ 5724.530253][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5724.530253][   T73]      netdev_get_by_index+0x5e/0x80
[ 5724.530253][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5724.530253][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5724.530253][   T73]      ip6_route_add+0x1c/0x140
[ 5724.530253][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5724.530253][   T73]      addrconf_add_dev+0xe2/0x170
[ 5724.530253][   T73]      inet6_addr_add+0x12f/0xa40
[ 5724.530253][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5724.530253][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5724.530253][   T73]      netlink_rcv_skb+0x130/0x360
[ 5724.530253][   T73]      netlink_unicast+0x449/0x710
[ 5724.530253][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5724.530253][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5724.530253][   T73]      ___sys_sendmsg+0xee/0x170
[ 5724.530253][   T73]      __sys_sendmsg+0xcd/0x170
[ 5724.530253][   T73]      do_syscall_64+0xc6/0x1e0
[ 5724.530253][   T73] 
[ 5724.532501][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5724.532501][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5724.532501][   T73]      ipv6_find_idev+0x102/0x170
[ 5724.532501][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5724.532501][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5724.532501][   T73]      netlink_rcv_skb+0x130/0x360
[ 5724.532501][   T73]      netlink_unicast+0x449/0x710
[ 5724.532501][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5724.532501][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5724.532501][   T73]      ___sys_sendmsg+0xee/0x170
[ 5724.532501][   T73]      __sys_sendmsg+0xcd/0x170
[ 5724.532501][   T73]      do_syscall_64+0xc6/0x1e0
[ 5724.532501][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5724.532501][   T73] 
[ 5724.534324][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5724.534324][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5724.534324][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5724.534324][   T73]      ipv6_find_idev+0x102/0x170
[ 5724.534324][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5724.534324][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5724.534324][   T73]      netlink_rcv_skb+0x130/0x360
[ 5724.534324][   T73]      netlink_unicast+0x449/0x710
[ 5724.534324][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5724.534324][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5724.534324][   T73]      ___sys_sendmsg+0xee/0x170
[ 5724.534324][   T73]      __sys_sendmsg+0xcd/0x170
[ 5724.534324][   T73]      do_syscall_64+0xc6/0x1e0
[ 5724.534324][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5724.534324][   T73] 
[ 5724.536231][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5724.536502][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5724.536502][   T73]      netdev_get_by_index+0x5e/0x80
[ 5724.536502][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5724.536502][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5724.536502][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5724.536502][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5724.536502][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5724.536502][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5724.536502][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5724.536502][   T73]      addrconf_dad_begin+0x310/0x670
[ 5724.536502][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5724.536502][   T73]      process_one_work+0x84d/0x18a0
[ 5724.536502][   T73]      worker_thread+0x587/0xd30
[ 5724.536502][   T73]      kthread+0x28a/0x350
[ 5724.536502][   T73]      ret_from_fork+0x31/0x70
[ 5724.536502][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5724.536502][   T73] 
[ 5724.541087][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5724.541087][   T73]      netdev_get_by_index+0x5e/0x80
[ 5724.541087][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5724.541087][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5724.541087][   T73]      ip6_route_add+0x1c/0x140
[ 5724.541087][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5724.541087][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5724.541087][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5724.541087][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5724.541087][   T73]      netlink_rcv_skb+0x130/0x360
[ 5724.541087][   T73]      netlink_unicast+0x449/0x710
[ 5724.541087][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5724.541087][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5724.541087][   T73]      ___sys_sendmsg+0xee/0x170
[ 5724.541087][   T73]      __sys_sendmsg+0xcd/0x170
[ 5724.541087][   T73]      do_syscall_64+0xc6/0x1e0
[ 5724.541087][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5724.541087][   T73] 
[ 5724.543377][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5724.543377][   T73]      netdev_get_by_index+0x5e/0x80
[ 5724.543377][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5724.543377][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5724.543377][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5724.543377][   T73]      ipv6_add_addr+0x411/0x2000
[ 5724.543377][   T73]      inet6_addr_add+0x30e/0xa40
[ 5724.543377][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5724.543377][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5724.543377][   T73]      netlink_rcv_skb+0x130/0x360
[ 5724.543377][   T73]      netlink_unicast+0x449/0x710
[ 5724.543377][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5724.543377][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5724.543377][   T73]      ___sys_sendmsg+0xee/0x170
[ 5724.543377][   T73]      __sys_sendmsg+0xcd/0x170
[ 5724.543377][   T73]      do_syscall_64+0xc6/0x1e0
[ 5724.543377][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5724.543377][   T73] 
[ 5724.545729][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5724.545729][   T73]      netdev_get_by_index+0x5e/0x80
[ 5724.545729][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5724.545729][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5724.545729][   T73]      ip6_route_add+0x1c/0x140
[ 5724.545729][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5724.545729][   T73]      addrconf_add_dev+0xe2/0x170
[ 5724.545729][   T73]      inet6_addr_add+0x12f/0xa40
[ 5724.545729][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5724.545729][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5724.545729][   T73]      netlink_rcv_skb+0x130/0x360
[ 5724.545729][   T73]      netlink_unicast+0x449/0x710
[ 5724.545729][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5724.545729][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5724.545729][   T73]      ___sys_sendmsg+0xee/0x170
[ 5724.545729][   T73]      __sys_sendmsg+0xcd/0x170
[ 5724.545729][   T73]      do_syscall_64+0xc6/0x1e0
[ 5724.545729][   T73] 
[ 5724.547919][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5724.547919][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5724.547919][   T73]      ipv6_find_idev+0x102/0x170
[ 5724.547919][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5724.547919][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5724.547919][   T73]      netlink_rcv_skb+0x130/0x360
[ 5724.547919][   T73]      netlink_unicast+0x449/0x710
[ 5724.547919][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5724.547919][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5724.547919][   T73]      ___sys_sendmsg+0xee/0x170
[ 5724.547919][   T73]      __sys_sendmsg+0xcd/0x170
[ 5724.547919][   T73]      do_syscall_64+0xc6/0x1e0
[ 5724.547919][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5724.547919][   T73] 
[ 5724.549677][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5724.549677][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5724.549677][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5724.549677][   T73]      ipv6_find_idev+0x102/0x170
[ 5724.549677][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5724.549677][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5724.549677][   T73]      netlink_rcv_skb+0x130/0x360
[ 5724.549677][   T73]      netlink_unicast+0x449/0x710
[ 5724.549677][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5724.549677][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5724.549677][   T73]      ___sys_sendmsg+0xee/0x170
[ 5724.549677][   T73]      __sys_sendmsg+0xcd/0x170
[ 5724.549677][   T73]      do_syscall_64+0xc6/0x1e0
[ 5724.549677][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5724.549677][   T73] 
[ 5734.807749][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5734.808212][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5734.808212][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5734.808212][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5734.808212][   T73]      fib6_nh_init+0xa22/0x1580
[ 5734.808212][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5734.808212][   T73]      ip6_route_add+0x1c/0x140
[ 5734.808212][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5734.808212][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5734.808212][   T73]      netlink_rcv_skb+0x130/0x360
[ 5734.808212][   T73]      netlink_unicast+0x449/0x710
[ 5734.808212][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5734.808212][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5734.808212][   T73]      ___sys_sendmsg+0xee/0x170
[ 5734.808212][   T73]      __sys_sendmsg+0xcd/0x170
[ 5734.808212][   T73]      do_syscall_64+0xc6/0x1e0
[ 5734.808212][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5734.808212][   T73] 
[ 5734.810128][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5734.810128][   T73]      dst_init+0x84/0x4a0
[ 5734.810128][   T73]      dst_alloc+0x97/0x150
[ 5734.810128][   T73]      ip6_dst_alloc+0x23/0x90
[ 5734.810128][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5734.810128][   T73]      ip6_pol_route+0x56f/0x840
[ 5734.810128][   T73]      fib6_rule_lookup+0x456/0x630
[ 5734.810128][   T73]      ip6_route_input+0x59c/0xa50
[ 5734.810128][   T73]      ipv6_rcv+0x397/0x810
[ 5734.810128][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5734.810128][   T73]      process_backlog+0x101/0x620
[ 5734.810128][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5734.810128][   T73]      net_rx_action+0x495/0xbe0
[ 5734.810128][   T73]      __do_softirq+0x1b5/0x7f6
[ 5734.810128][   T73] 
[ 5734.811772][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5734.811772][   T73]      netdev_get_by_index+0x5e/0x80
[ 5734.811772][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5734.811772][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5734.811772][   T73]      ip6_route_add+0x1c/0x140
[ 5734.811772][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5734.811772][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5734.811772][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5734.811772][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5734.811772][   T73]      netlink_rcv_skb+0x130/0x360
[ 5734.811772][   T73]      netlink_unicast+0x449/0x710
[ 5734.811772][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5734.811772][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5734.811772][   T73]      ___sys_sendmsg+0xee/0x170
[ 5734.811772][   T73]      __sys_sendmsg+0xcd/0x170
[ 5734.811772][   T73]      do_syscall_64+0xc6/0x1e0
[ 5734.811772][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5734.811772][   T73] 
[ 5734.813770][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5734.813770][   T73]      netdev_get_by_index+0x5e/0x80
[ 5734.813770][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5734.813770][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5734.813770][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5734.813770][   T73]      ipv6_add_addr+0x411/0x2000
[ 5734.813770][   T73]      inet6_addr_add+0x30e/0xa40
[ 5734.813770][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5734.813770][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5734.813770][   T73]      netlink_rcv_skb+0x130/0x360
[ 5734.813770][   T73]      netlink_unicast+0x449/0x710
[ 5734.813770][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5734.813770][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5734.813770][   T73]      ___sys_sendmsg+0xee/0x170
[ 5734.813770][   T73]      __sys_sendmsg+0xcd/0x170
[ 5734.813770][   T73]      do_syscall_64+0xc6/0x1e0
[ 5734.813770][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5734.813770][   T73] 
[ 5734.815773][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5734.815773][   T73]      netdev_get_by_index+0x5e/0x80
[ 5734.815773][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5734.815773][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5734.815773][   T73]      ip6_route_add+0x1c/0x140
[ 5734.815773][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5734.815773][   T73]      addrconf_add_dev+0xe2/0x170
[ 5734.815773][   T73]      inet6_addr_add+0x12f/0xa40
[ 5734.815773][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5734.815773][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5734.815773][   T73]      netlink_rcv_skb+0x130/0x360
[ 5734.815773][   T73]      netlink_unicast+0x449/0x710
[ 5734.815773][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5734.815773][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5734.815773][   T73]      ___sys_sendmsg+0xee/0x170
[ 5734.815773][   T73]      __sys_sendmsg+0xcd/0x170
[ 5734.815773][   T73]      do_syscall_64+0xc6/0x1e0
[ 5734.815773][   T73] 
[ 5734.817733][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5734.817733][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5734.817733][   T73]      ipv6_find_idev+0x102/0x170
[ 5734.817733][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5734.817733][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5734.817733][   T73]      netlink_rcv_skb+0x130/0x360
[ 5734.817733][   T73]      netlink_unicast+0x449/0x710
[ 5734.817733][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5734.817733][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5734.817733][   T73]      ___sys_sendmsg+0xee/0x170
[ 5734.817733][   T73]      __sys_sendmsg+0xcd/0x170
[ 5734.817733][   T73]      do_syscall_64+0xc6/0x1e0
[ 5734.817733][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5734.817733][   T73] 
[ 5734.819281][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5734.819281][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5734.819281][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5734.819281][   T73]      ipv6_find_idev+0x102/0x170
[ 5734.819281][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5734.819281][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5734.819281][   T73]      netlink_rcv_skb+0x130/0x360
[ 5734.819281][   T73]      netlink_unicast+0x449/0x710
[ 5734.819281][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5734.819281][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5734.819281][   T73]      ___sys_sendmsg+0xee/0x170
[ 5734.819281][   T73]      __sys_sendmsg+0xcd/0x170
[ 5734.819281][   T73]      do_syscall_64+0xc6/0x1e0
[ 5734.819281][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5734.819281][   T73] 
[ 5734.820971][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5734.821258][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5734.821258][   T73]      netdev_get_by_index+0x5e/0x80
[ 5734.821258][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5734.821258][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5734.821258][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5734.821258][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5734.821258][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5734.821258][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5734.821258][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5734.821258][   T73]      addrconf_dad_begin+0x310/0x670
[ 5734.821258][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5734.821258][   T73]      process_one_work+0x84d/0x18a0
[ 5734.821258][   T73]      worker_thread+0x587/0xd30
[ 5734.821258][   T73]      kthread+0x28a/0x350
[ 5734.821258][   T73]      ret_from_fork+0x31/0x70
[ 5734.821258][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5734.821258][   T73] 
[ 5734.823169][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5734.823169][   T73]      netdev_get_by_index+0x5e/0x80
[ 5734.823169][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5734.823169][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5734.823169][   T73]      ip6_route_add+0x1c/0x140
[ 5734.823169][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5734.823169][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5734.823169][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5734.823169][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5734.823169][   T73]      netlink_rcv_skb+0x130/0x360
[ 5734.823169][   T73]      netlink_unicast+0x449/0x710
[ 5734.823169][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5734.823169][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5734.823169][   T73]      ___sys_sendmsg+0xee/0x170
[ 5734.823169][   T73]      __sys_sendmsg+0xcd/0x170
[ 5734.823169][   T73]      do_syscall_64+0xc6/0x1e0
[ 5734.823169][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5734.823169][   T73] 
[ 5734.825162][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5734.825162][   T73]      netdev_get_by_index+0x5e/0x80
[ 5734.825162][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5734.825162][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5734.825162][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5734.825162][   T73]      ipv6_add_addr+0x411/0x2000
[ 5734.825162][   T73]      inet6_addr_add+0x30e/0xa40
[ 5734.825162][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5734.825162][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5734.825162][   T73]      netlink_rcv_skb+0x130/0x360
[ 5734.825162][   T73]      netlink_unicast+0x449/0x710
[ 5734.825162][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5734.825162][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5734.825162][   T73]      ___sys_sendmsg+0xee/0x170
[ 5734.825162][   T73]      __sys_sendmsg+0xcd/0x170
[ 5734.825162][   T73]      do_syscall_64+0xc6/0x1e0
[ 5734.825162][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5734.825162][   T73] 
[ 5734.827185][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5734.827185][   T73]      netdev_get_by_index+0x5e/0x80
[ 5734.827185][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5734.827185][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5734.827185][   T73]      ip6_route_add+0x1c/0x140
[ 5734.827185][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5734.827185][   T73]      addrconf_add_dev+0xe2/0x170
[ 5734.827185][   T73]      inet6_addr_add+0x12f/0xa40
[ 5734.827185][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5734.827185][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5734.827185][   T73]      netlink_rcv_skb+0x130/0x360
[ 5734.827185][   T73]      netlink_unicast+0x449/0x710
[ 5734.827185][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5734.827185][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5734.827185][   T73]      ___sys_sendmsg+0xee/0x170
[ 5734.827185][   T73]      __sys_sendmsg+0xcd/0x170
[ 5734.827185][   T73]      do_syscall_64+0xc6/0x1e0
[ 5734.827185][   T73] 
[ 5734.829169][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5734.829169][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5734.829169][   T73]      ipv6_find_idev+0x102/0x170
[ 5734.829169][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5734.829169][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5734.829169][   T73]      netlink_rcv_skb+0x130/0x360
[ 5734.829169][   T73]      netlink_unicast+0x449/0x710
[ 5734.829169][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5734.829169][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5734.829169][   T73]      ___sys_sendmsg+0xee/0x170
[ 5734.829169][   T73]      __sys_sendmsg+0xcd/0x170
[ 5734.829169][   T73]      do_syscall_64+0xc6/0x1e0
[ 5734.829169][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5734.829169][   T73] 
[ 5734.830717][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5734.830717][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5734.830717][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5734.830717][   T73]      ipv6_find_idev+0x102/0x170
[ 5734.830717][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5734.830717][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5734.830717][   T73]      netlink_rcv_skb+0x130/0x360
[ 5734.830717][   T73]      netlink_unicast+0x449/0x710
[ 5734.830717][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5734.830717][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5734.830717][   T73]      ___sys_sendmsg+0xee/0x170
[ 5734.830717][   T73]      __sys_sendmsg+0xcd/0x170
[ 5734.830717][   T73]      do_syscall_64+0xc6/0x1e0
[ 5734.830717][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5734.830717][   T73] 
[ 5734.832412][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5734.832688][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5734.832688][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5734.832688][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5734.832688][   T73]      fib6_nh_init+0xa22/0x1580
[ 5734.832688][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5734.832688][   T73]      ip6_route_add+0x1c/0x140
[ 5734.832688][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5734.832688][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5734.832688][   T73]      netlink_rcv_skb+0x130/0x360
[ 5734.832688][   T73]      netlink_unicast+0x449/0x710
[ 5734.832688][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5734.832688][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5734.832688][   T73]      ___sys_sendmsg+0xee/0x170
[ 5734.832688][   T73]      __sys_sendmsg+0xcd/0x170
[ 5734.832688][   T73]      do_syscall_64+0xc6/0x1e0
[ 5734.832688][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5734.832688][   T73] 
[ 5734.834763][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5734.834763][   T73]      dst_init+0x84/0x4a0
[ 5734.834763][   T73]      dst_alloc+0x97/0x150
[ 5734.834763][   T73]      ip6_dst_alloc+0x23/0x90
[ 5734.834763][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5734.834763][   T73]      ip6_pol_route+0x56f/0x840
[ 5734.834763][   T73]      fib6_rule_lookup+0x456/0x630
[ 5734.834763][   T73]      ip6_route_input+0x59c/0xa50
[ 5734.834763][   T73]      ipv6_rcv+0x397/0x810
[ 5734.834763][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5734.834763][   T73]      process_backlog+0x101/0x620
[ 5734.834763][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5734.834763][   T73]      net_rx_action+0x495/0xbe0
[ 5734.834763][   T73]      __do_softirq+0x1b5/0x7f6
[ 5734.834763][   T73] 
[ 5734.836656][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5734.836656][   T73]      netdev_get_by_index+0x5e/0x80
[ 5734.836656][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5734.836656][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5734.836656][   T73]      ip6_route_add+0x1c/0x140
[ 5734.836656][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5734.836656][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5734.836656][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5734.836656][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5734.836656][   T73]      netlink_rcv_skb+0x130/0x360
[ 5734.836656][   T73]      netlink_unicast+0x449/0x710
[ 5734.836656][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5734.836656][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5734.836656][   T73]      ___sys_sendmsg+0xee/0x170
[ 5734.836656][   T73]      __sys_sendmsg+0xcd/0x170
[ 5734.836656][   T73]      do_syscall_64+0xc6/0x1e0
[ 5734.836656][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5734.836656][   T73] 
[ 5734.838920][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5734.838920][   T73]      netdev_get_by_index+0x5e/0x80
[ 5734.838920][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5734.838920][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5734.838920][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5734.838920][   T73]      ipv6_add_addr+0x411/0x2000
[ 5734.838920][   T73]      inet6_addr_add+0x30e/0xa40
[ 5734.838920][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5734.838920][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5734.838920][   T73]      netlink_rcv_skb+0x130/0x360
[ 5734.838920][   T73]      netlink_unicast+0x449/0x710
[ 5734.838920][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5734.838920][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5734.838920][   T73]      ___sys_sendmsg+0xee/0x170
[ 5734.838920][   T73]      __sys_sendmsg+0xcd/0x170
[ 5734.838920][   T73]      do_syscall_64+0xc6/0x1e0
[ 5734.838920][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5734.838920][   T73] 
[ 5734.841189][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5734.841189][   T73]      netdev_get_by_index+0x5e/0x80
[ 5734.841189][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5734.841189][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5734.841189][   T73]      ip6_route_add+0x1c/0x140
[ 5734.841189][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5734.841189][   T73]      addrconf_add_dev+0xe2/0x170
[ 5734.841189][   T73]      inet6_addr_add+0x12f/0xa40
[ 5734.841189][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5734.841189][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5734.841189][   T73]      netlink_rcv_skb+0x130/0x360
[ 5734.841189][   T73]      netlink_unicast+0x449/0x710
[ 5734.841189][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5734.841189][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5734.841189][   T73]      ___sys_sendmsg+0xee/0x170
[ 5734.841189][   T73]      __sys_sendmsg+0xcd/0x170
[ 5734.841189][   T73]      do_syscall_64+0xc6/0x1e0
[ 5734.841189][   T73] 
[ 5734.843360][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5734.843360][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5734.843360][   T73]      ipv6_find_idev+0x102/0x170
[ 5734.843360][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5734.843360][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5734.843360][   T73]      netlink_rcv_skb+0x130/0x360
[ 5734.843360][   T73]      netlink_unicast+0x449/0x710
[ 5734.843360][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5734.843360][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5734.843360][   T73]      ___sys_sendmsg+0xee/0x170
[ 5734.843360][   T73]      __sys_sendmsg+0xcd/0x170
[ 5734.843360][   T73]      do_syscall_64+0xc6/0x1e0
[ 5734.843360][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5734.843360][   T73] 
[ 5734.845158][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5734.845158][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5734.845158][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5734.845158][   T73]      ipv6_find_idev+0x102/0x170
[ 5734.845158][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5734.845158][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5734.845158][   T73]      netlink_rcv_skb+0x130/0x360
[ 5734.845158][   T73]      netlink_unicast+0x449/0x710
[ 5734.845158][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5734.845158][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5734.845158][   T73]      ___sys_sendmsg+0xee/0x170
[ 5734.845158][   T73]      __sys_sendmsg+0xcd/0x170
[ 5734.845158][   T73]      do_syscall_64+0xc6/0x1e0
[ 5734.845158][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5734.845158][   T73] 
[ 5734.847094][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5734.847376][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5734.847376][   T73]      netdev_get_by_index+0x5e/0x80
[ 5734.847376][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5734.847376][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5734.847376][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5734.847376][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5734.847376][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5734.847376][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5734.847376][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5734.847376][   T73]      addrconf_dad_begin+0x310/0x670
[ 5734.847376][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5734.847376][   T73]      process_one_work+0x84d/0x18a0
[ 5734.847376][   T73]      worker_thread+0x587/0xd30
[ 5734.847376][   T73]      kthread+0x28a/0x350
[ 5734.847376][   T73]      ret_from_fork+0x31/0x70
[ 5734.847376][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5734.847376][   T73] 
[ 5734.849555][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5734.849555][   T73]      netdev_get_by_index+0x5e/0x80
[ 5734.849555][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5734.849555][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5734.849555][   T73]      ip6_route_add+0x1c/0x140
[ 5734.849555][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5734.849555][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5734.849555][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5734.849555][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5734.849555][   T73]      netlink_rcv_skb+0x130/0x360
[ 5734.849555][   T73]      netlink_unicast+0x449/0x710
[ 5734.849555][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5734.849555][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5734.849555][   T73]      ___sys_sendmsg+0xee/0x170
[ 5734.849555][   T73]      __sys_sendmsg+0xcd/0x170
[ 5734.849555][   T73]      do_syscall_64+0xc6/0x1e0
[ 5734.849555][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5734.849555][   T73] 
[ 5734.851745][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5734.851745][   T73]      netdev_get_by_index+0x5e/0x80
[ 5734.851745][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5734.851745][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5734.851745][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5734.851745][   T73]      ipv6_add_addr+0x411/0x2000
[ 5734.851745][   T73]      inet6_addr_add+0x30e/0xa40
[ 5734.851745][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5734.851745][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5734.851745][   T73]      netlink_rcv_skb+0x130/0x360
[ 5734.851745][   T73]      netlink_unicast+0x449/0x710
[ 5734.851745][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5734.851745][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5734.851745][   T73]      ___sys_sendmsg+0xee/0x170
[ 5734.851745][   T73]      __sys_sendmsg+0xcd/0x170
[ 5734.851745][   T73]      do_syscall_64+0xc6/0x1e0
[ 5734.851745][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5734.851745][   T73] 
[ 5734.854011][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5734.854011][   T73]      netdev_get_by_index+0x5e/0x80
[ 5734.854011][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5734.854011][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5734.854011][   T73]      ip6_route_add+0x1c/0x140
[ 5734.854011][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5734.854011][   T73]      addrconf_add_dev+0xe2/0x170
[ 5734.854011][   T73]      inet6_addr_add+0x12f/0xa40
[ 5734.854011][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5734.854011][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5734.854011][   T73]      netlink_rcv_skb+0x130/0x360
[ 5734.854011][   T73]      netlink_unicast+0x449/0x710
[ 5734.854011][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5734.854011][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5734.854011][   T73]      ___sys_sendmsg+0xee/0x170
[ 5734.854011][   T73]      __sys_sendmsg+0xcd/0x170
[ 5734.854011][   T73]      do_syscall_64+0xc6/0x1e0
[ 5734.854011][   T73] 
[ 5734.856299][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5734.856299][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5734.856299][   T73]      ipv6_find_idev+0x102/0x170
[ 5734.856299][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5734.856299][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5734.856299][   T73]      netlink_rcv_skb+0x130/0x360
[ 5734.856299][   T73]      netlink_unicast+0x449/0x710
[ 5734.856299][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5734.856299][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5734.856299][   T73]      ___sys_sendmsg+0xee/0x170
[ 5734.856299][   T73]      __sys_sendmsg+0xcd/0x170
[ 5734.856299][   T73]      do_syscall_64+0xc6/0x1e0
[ 5734.856299][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5734.856299][   T73] 
[ 5734.858048][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5734.858048][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5734.858048][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5734.858048][   T73]      ipv6_find_idev+0x102/0x170
[ 5734.858048][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5734.858048][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5734.858048][   T73]      netlink_rcv_skb+0x130/0x360
[ 5734.858048][   T73]      netlink_unicast+0x449/0x710
[ 5734.858048][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5734.858048][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5734.858048][   T73]      ___sys_sendmsg+0xee/0x170
[ 5734.858048][   T73]      __sys_sendmsg+0xcd/0x170
[ 5734.858048][   T73]      do_syscall_64+0xc6/0x1e0
[ 5734.858048][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5734.858048][   T73] 
[ 5745.111767][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5745.112274][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5745.112274][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5745.112274][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5745.112274][   T73]      fib6_nh_init+0xa22/0x1580
[ 5745.112274][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5745.112274][   T73]      ip6_route_add+0x1c/0x140
[ 5745.112274][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5745.112274][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5745.112274][   T73]      netlink_rcv_skb+0x130/0x360
[ 5745.112274][   T73]      netlink_unicast+0x449/0x710
[ 5745.112274][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5745.112274][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5745.112274][   T73]      ___sys_sendmsg+0xee/0x170
[ 5745.112274][   T73]      __sys_sendmsg+0xcd/0x170
[ 5745.112274][   T73]      do_syscall_64+0xc6/0x1e0
[ 5745.112274][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5745.112274][   T73] 
[ 5745.114451][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5745.114451][   T73]      dst_init+0x84/0x4a0
[ 5745.114451][   T73]      dst_alloc+0x97/0x150
[ 5745.114451][   T73]      ip6_dst_alloc+0x23/0x90
[ 5745.114451][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5745.114451][   T73]      ip6_pol_route+0x56f/0x840
[ 5745.114451][   T73]      fib6_rule_lookup+0x456/0x630
[ 5745.114451][   T73]      ip6_route_input+0x59c/0xa50
[ 5745.114451][   T73]      ipv6_rcv+0x397/0x810
[ 5745.114451][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5745.114451][   T73]      process_backlog+0x101/0x620
[ 5745.114451][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5745.114451][   T73]      net_rx_action+0x495/0xbe0
[ 5745.114451][   T73]      __do_softirq+0x1b5/0x7f6
[ 5745.114451][   T73] 
[ 5745.116311][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5745.116311][   T73]      netdev_get_by_index+0x5e/0x80
[ 5745.116311][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5745.116311][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5745.116311][   T73]      ip6_route_add+0x1c/0x140
[ 5745.116311][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5745.116311][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5745.116311][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5745.116311][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5745.116311][   T73]      netlink_rcv_skb+0x130/0x360
[ 5745.116311][   T73]      netlink_unicast+0x449/0x710
[ 5745.116311][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5745.116311][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5745.116311][   T73]      ___sys_sendmsg+0xee/0x170
[ 5745.116311][   T73]      __sys_sendmsg+0xcd/0x170
[ 5745.116311][   T73]      do_syscall_64+0xc6/0x1e0
[ 5745.116311][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5745.116311][   T73] 
[ 5745.118576][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5745.118576][   T73]      netdev_get_by_index+0x5e/0x80
[ 5745.118576][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5745.118576][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5745.118576][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5745.118576][   T73]      ipv6_add_addr+0x411/0x2000
[ 5745.118576][   T73]      inet6_addr_add+0x30e/0xa40
[ 5745.118576][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5745.118576][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5745.118576][   T73]      netlink_rcv_skb+0x130/0x360
[ 5745.118576][   T73]      netlink_unicast+0x449/0x710
[ 5745.118576][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5745.118576][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5745.118576][   T73]      ___sys_sendmsg+0xee/0x170
[ 5745.118576][   T73]      __sys_sendmsg+0xcd/0x170
[ 5745.118576][   T73]      do_syscall_64+0xc6/0x1e0
[ 5745.118576][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5745.118576][   T73] 
[ 5745.120826][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5745.120826][   T73]      netdev_get_by_index+0x5e/0x80
[ 5745.120826][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5745.120826][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5745.120826][   T73]      ip6_route_add+0x1c/0x140
[ 5745.120826][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5745.120826][   T73]      addrconf_add_dev+0xe2/0x170
[ 5745.120826][   T73]      inet6_addr_add+0x12f/0xa40
[ 5745.120826][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5745.120826][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5745.120826][   T73]      netlink_rcv_skb+0x130/0x360
[ 5745.120826][   T73]      netlink_unicast+0x449/0x710
[ 5745.120826][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5745.120826][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5745.120826][   T73]      ___sys_sendmsg+0xee/0x170
[ 5745.120826][   T73]      __sys_sendmsg+0xcd/0x170
[ 5745.120826][   T73]      do_syscall_64+0xc6/0x1e0
[ 5745.120826][   T73] 
[ 5745.123042][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5745.123042][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5745.123042][   T73]      ipv6_find_idev+0x102/0x170
[ 5745.123042][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5745.123042][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5745.123042][   T73]      netlink_rcv_skb+0x130/0x360
[ 5745.123042][   T73]      netlink_unicast+0x449/0x710
[ 5745.123042][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5745.123042][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5745.123042][   T73]      ___sys_sendmsg+0xee/0x170
[ 5745.123042][   T73]      __sys_sendmsg+0xcd/0x170
[ 5745.123042][   T73]      do_syscall_64+0xc6/0x1e0
[ 5745.123042][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5745.123042][   T73] 
[ 5745.124770][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5745.124770][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5745.124770][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5745.124770][   T73]      ipv6_find_idev+0x102/0x170
[ 5745.124770][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5745.124770][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5745.124770][   T73]      netlink_rcv_skb+0x130/0x360
[ 5745.124770][   T73]      netlink_unicast+0x449/0x710
[ 5745.124770][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5745.124770][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5745.124770][   T73]      ___sys_sendmsg+0xee/0x170
[ 5745.124770][   T73]      __sys_sendmsg+0xcd/0x170
[ 5745.124770][   T73]      do_syscall_64+0xc6/0x1e0
[ 5745.124770][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5745.124770][   T73] 
[ 5745.126682][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5745.126990][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5745.126990][   T73]      netdev_get_by_index+0x5e/0x80
[ 5745.126990][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5745.126990][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5745.126990][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5745.126990][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5745.126990][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5745.126990][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5745.126990][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5745.126990][   T73]      addrconf_dad_begin+0x310/0x670
[ 5745.126990][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5745.126990][   T73]      process_one_work+0x84d/0x18a0
[ 5745.126990][   T73]      worker_thread+0x587/0xd30
[ 5745.126990][   T73]      kthread+0x28a/0x350
[ 5745.126990][   T73]      ret_from_fork+0x31/0x70
[ 5745.126990][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5745.126990][   T73] 
[ 5745.129151][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5745.129151][   T73]      netdev_get_by_index+0x5e/0x80
[ 5745.129151][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5745.129151][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5745.129151][   T73]      ip6_route_add+0x1c/0x140
[ 5745.129151][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5745.129151][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5745.129151][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5745.129151][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5745.129151][   T73]      netlink_rcv_skb+0x130/0x360
[ 5745.129151][   T73]      netlink_unicast+0x449/0x710
[ 5745.129151][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5745.129151][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5745.129151][   T73]      ___sys_sendmsg+0xee/0x170
[ 5745.129151][   T73]      __sys_sendmsg+0xcd/0x170
[ 5745.129151][   T73]      do_syscall_64+0xc6/0x1e0
[ 5745.129151][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5745.129151][   T73] 
[ 5745.131400][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5745.131400][   T73]      netdev_get_by_index+0x5e/0x80
[ 5745.131400][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5745.131400][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5745.131400][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5745.131400][   T73]      ipv6_add_addr+0x411/0x2000
[ 5745.131400][   T73]      inet6_addr_add+0x30e/0xa40
[ 5745.131400][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5745.131400][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5745.131400][   T73]      netlink_rcv_skb+0x130/0x360
[ 5745.131400][   T73]      netlink_unicast+0x449/0x710
[ 5745.131400][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5745.131400][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5745.131400][   T73]      ___sys_sendmsg+0xee/0x170
[ 5745.131400][   T73]      __sys_sendmsg+0xcd/0x170
[ 5745.131400][   T73]      do_syscall_64+0xc6/0x1e0
[ 5745.131400][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5745.131400][   T73] 
[ 5745.133666][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5745.133666][   T73]      netdev_get_by_index+0x5e/0x80
[ 5745.133666][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5745.133666][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5745.133666][   T73]      ip6_route_add+0x1c/0x140
[ 5745.133666][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5745.133666][   T73]      addrconf_add_dev+0xe2/0x170
[ 5745.133666][   T73]      inet6_addr_add+0x12f/0xa40
[ 5745.133666][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5745.133666][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5745.133666][   T73]      netlink_rcv_skb+0x130/0x360
[ 5745.133666][   T73]      netlink_unicast+0x449/0x710
[ 5745.133666][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5745.133666][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5745.133666][   T73]      ___sys_sendmsg+0xee/0x170
[ 5745.133666][   T73]      __sys_sendmsg+0xcd/0x170
[ 5745.133666][   T73]      do_syscall_64+0xc6/0x1e0
[ 5745.133666][   T73] 
[ 5745.135888][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5745.135888][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5745.135888][   T73]      ipv6_find_idev+0x102/0x170
[ 5745.135888][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5745.135888][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5745.135888][   T73]      netlink_rcv_skb+0x130/0x360
[ 5745.135888][   T73]      netlink_unicast+0x449/0x710
[ 5745.135888][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5745.135888][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5745.135888][   T73]      ___sys_sendmsg+0xee/0x170
[ 5745.135888][   T73]      __sys_sendmsg+0xcd/0x170
[ 5745.135888][   T73]      do_syscall_64+0xc6/0x1e0
[ 5745.135888][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5745.135888][   T73] 
[ 5745.137630][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5745.137630][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5745.137630][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5745.137630][   T73]      ipv6_find_idev+0x102/0x170
[ 5745.137630][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5745.137630][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5745.137630][   T73]      netlink_rcv_skb+0x130/0x360
[ 5745.137630][   T73]      netlink_unicast+0x449/0x710
[ 5745.137630][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5745.137630][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5745.137630][   T73]      ___sys_sendmsg+0xee/0x170
[ 5745.137630][   T73]      __sys_sendmsg+0xcd/0x170
[ 5745.137630][   T73]      do_syscall_64+0xc6/0x1e0
[ 5745.137630][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5745.137630][   T73] 
[ 5745.139527][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5745.139846][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5745.139846][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5745.139846][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5745.139846][   T73]      fib6_nh_init+0xa22/0x1580
[ 5745.139846][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5745.139846][   T73]      ip6_route_add+0x1c/0x140
[ 5745.139846][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5745.139846][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5745.139846][   T73]      netlink_rcv_skb+0x130/0x360
[ 5745.139846][   T73]      netlink_unicast+0x449/0x710
[ 5745.139846][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5745.139846][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5745.139846][   T73]      ___sys_sendmsg+0xee/0x170
[ 5745.139846][   T73]      __sys_sendmsg+0xcd/0x170
[ 5745.139846][   T73]      do_syscall_64+0xc6/0x1e0
[ 5745.139846][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5745.139846][   T73] 
[ 5745.142154][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5745.142154][   T73]      dst_init+0x84/0x4a0
[ 5745.142154][   T73]      dst_alloc+0x97/0x150
[ 5745.142154][   T73]      ip6_dst_alloc+0x23/0x90
[ 5745.142154][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5745.142154][   T73]      ip6_pol_route+0x56f/0x840
[ 5745.142154][   T73]      fib6_rule_lookup+0x456/0x630
[ 5745.142154][   T73]      ip6_route_input+0x59c/0xa50
[ 5745.142154][   T73]      ipv6_rcv+0x397/0x810
[ 5745.142154][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5745.142154][   T73]      process_backlog+0x101/0x620
[ 5745.142154][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5745.142154][   T73]      net_rx_action+0x495/0xbe0
[ 5745.142154][   T73]      __do_softirq+0x1b5/0x7f6
[ 5745.142154][   T73] 
[ 5745.144186][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5745.144186][   T73]      netdev_get_by_index+0x5e/0x80
[ 5745.144186][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5745.144186][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5745.144186][   T73]      ip6_route_add+0x1c/0x140
[ 5745.144186][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5745.144186][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5745.144186][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5745.144186][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5745.144186][   T73]      netlink_rcv_skb+0x130/0x360
[ 5745.144186][   T73]      netlink_unicast+0x449/0x710
[ 5745.144186][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5745.144186][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5745.144186][   T73]      ___sys_sendmsg+0xee/0x170
[ 5745.144186][   T73]      __sys_sendmsg+0xcd/0x170
[ 5745.144186][   T73]      do_syscall_64+0xc6/0x1e0
[ 5745.144186][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5745.144186][   T73] 
[ 5745.146682][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5745.146682][   T73]      netdev_get_by_index+0x5e/0x80
[ 5745.146682][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5745.146682][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5745.146682][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5745.146682][   T73]      ipv6_add_addr+0x411/0x2000
[ 5745.146682][   T73]      inet6_addr_add+0x30e/0xa40
[ 5745.146682][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5745.146682][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5745.146682][   T73]      netlink_rcv_skb+0x130/0x360
[ 5745.146682][   T73]      netlink_unicast+0x449/0x710
[ 5745.146682][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5745.146682][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5745.146682][   T73]      ___sys_sendmsg+0xee/0x170
[ 5745.146682][   T73]      __sys_sendmsg+0xcd/0x170
[ 5745.146682][   T73]      do_syscall_64+0xc6/0x1e0
[ 5745.146682][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5745.146682][   T73] 
[ 5745.149178][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5745.149178][   T73]      netdev_get_by_index+0x5e/0x80
[ 5745.149178][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5745.149178][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5745.149178][   T73]      ip6_route_add+0x1c/0x140
[ 5745.149178][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5745.149178][   T73]      addrconf_add_dev+0xe2/0x170
[ 5745.149178][   T73]      inet6_addr_add+0x12f/0xa40
[ 5745.149178][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5745.149178][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5745.149178][   T73]      netlink_rcv_skb+0x130/0x360
[ 5745.149178][   T73]      netlink_unicast+0x449/0x710
[ 5745.149178][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5745.149178][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5745.149178][   T73]      ___sys_sendmsg+0xee/0x170
[ 5745.149178][   T73]      __sys_sendmsg+0xcd/0x170
[ 5745.149178][   T73]      do_syscall_64+0xc6/0x1e0
[ 5745.149178][   T73] 
[ 5745.151638][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5745.151638][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5745.151638][   T73]      ipv6_find_idev+0x102/0x170
[ 5745.151638][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5745.151638][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5745.151638][   T73]      netlink_rcv_skb+0x130/0x360
[ 5745.151638][   T73]      netlink_unicast+0x449/0x710
[ 5745.151638][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5745.151638][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5745.151638][   T73]      ___sys_sendmsg+0xee/0x170
[ 5745.151638][   T73]      __sys_sendmsg+0xcd/0x170
[ 5745.151638][   T73]      do_syscall_64+0xc6/0x1e0
[ 5745.151638][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5745.151638][   T73] 
[ 5745.153562][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5745.153562][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5745.153562][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5745.153562][   T73]      ipv6_find_idev+0x102/0x170
[ 5745.153562][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5745.153562][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5745.153562][   T73]      netlink_rcv_skb+0x130/0x360
[ 5745.153562][   T73]      netlink_unicast+0x449/0x710
[ 5745.153562][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5745.153562][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5745.153562][   T73]      ___sys_sendmsg+0xee/0x170
[ 5745.153562][   T73]      __sys_sendmsg+0xcd/0x170
[ 5745.153562][   T73]      do_syscall_64+0xc6/0x1e0
[ 5745.153562][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5745.153562][   T73] 
[ 5745.155672][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5745.156060][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5745.156060][   T73]      netdev_get_by_index+0x5e/0x80
[ 5745.156060][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5745.156060][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5745.156060][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5745.156060][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5745.156060][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5745.156060][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5745.156060][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5745.156060][   T73]      addrconf_dad_begin+0x310/0x670
[ 5745.156060][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5745.156060][   T73]      process_one_work+0x84d/0x18a0
[ 5745.156060][   T73]      worker_thread+0x587/0xd30
[ 5745.156060][   T73]      kthread+0x28a/0x350
[ 5745.156060][   T73]      ret_from_fork+0x31/0x70
[ 5745.156060][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5745.156060][   T73] 
[ 5745.158343][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5745.158343][   T73]      netdev_get_by_index+0x5e/0x80
[ 5745.158343][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5745.158343][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5745.158343][   T73]      ip6_route_add+0x1c/0x140
[ 5745.158343][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5745.158343][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5745.158343][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5745.158343][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5745.158343][   T73]      netlink_rcv_skb+0x130/0x360
[ 5745.158343][   T73]      netlink_unicast+0x449/0x710
[ 5745.158343][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5745.158343][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5745.158343][   T73]      ___sys_sendmsg+0xee/0x170
[ 5745.158343][   T73]      __sys_sendmsg+0xcd/0x170
[ 5745.158343][   T73]      do_syscall_64+0xc6/0x1e0
[ 5745.158343][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5745.158343][   T73] 
[ 5745.160911][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5745.160911][   T73]      netdev_get_by_index+0x5e/0x80
[ 5745.160911][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5745.160911][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5745.160911][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5745.160911][   T73]      ipv6_add_addr+0x411/0x2000
[ 5745.160911][   T73]      inet6_addr_add+0x30e/0xa40
[ 5745.160911][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5745.160911][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5745.160911][   T73]      netlink_rcv_skb+0x130/0x360
[ 5745.160911][   T73]      netlink_unicast+0x449/0x710
[ 5745.160911][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5745.160911][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5745.160911][   T73]      ___sys_sendmsg+0xee/0x170
[ 5745.160911][   T73]      __sys_sendmsg+0xcd/0x170
[ 5745.160911][   T73]      do_syscall_64+0xc6/0x1e0
[ 5745.160911][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5745.160911][   T73] 
[ 5745.163411][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5745.163411][   T73]      netdev_get_by_index+0x5e/0x80
[ 5745.163411][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5745.163411][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5745.163411][   T73]      ip6_route_add+0x1c/0x140
[ 5745.163411][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5745.163411][   T73]      addrconf_add_dev+0xe2/0x170
[ 5745.163411][   T73]      inet6_addr_add+0x12f/0xa40
[ 5745.163411][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5745.163411][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5745.163411][   T73]      netlink_rcv_skb+0x130/0x360
[ 5745.163411][   T73]      netlink_unicast+0x449/0x710
[ 5745.163411][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5745.163411][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5745.163411][   T73]      ___sys_sendmsg+0xee/0x170
[ 5745.163411][   T73]      __sys_sendmsg+0xcd/0x170
[ 5745.163411][   T73]      do_syscall_64+0xc6/0x1e0
[ 5745.163411][   T73] 
[ 5745.165883][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5745.165883][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5745.165883][   T73]      ipv6_find_idev+0x102/0x170
[ 5745.165883][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5745.165883][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5745.165883][   T73]      netlink_rcv_skb+0x130/0x360
[ 5745.165883][   T73]      netlink_unicast+0x449/0x710
[ 5745.165883][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5745.165883][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5745.165883][   T73]      ___sys_sendmsg+0xee/0x170
[ 5745.165883][   T73]      __sys_sendmsg+0xcd/0x170
[ 5745.165883][   T73]      do_syscall_64+0xc6/0x1e0
[ 5745.165883][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5745.165883][   T73] 
[ 5745.167799][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5745.167799][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5745.167799][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5745.167799][   T73]      ipv6_find_idev+0x102/0x170
[ 5745.167799][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5745.167799][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5745.167799][   T73]      netlink_rcv_skb+0x130/0x360
[ 5745.167799][   T73]      netlink_unicast+0x449/0x710
[ 5745.167799][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5745.167799][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5745.167799][   T73]      ___sys_sendmsg+0xee/0x170
[ 5745.167799][   T73]      __sys_sendmsg+0xcd/0x170
[ 5745.167799][   T73]      do_syscall_64+0xc6/0x1e0
[ 5745.167799][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5745.167799][   T73] 
[ 5755.335682][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5755.336193][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5755.336193][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5755.336193][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5755.336193][   T73]      fib6_nh_init+0xa22/0x1580
[ 5755.336193][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5755.336193][   T73]      ip6_route_add+0x1c/0x140
[ 5755.336193][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5755.336193][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5755.336193][   T73]      netlink_rcv_skb+0x130/0x360
[ 5755.336193][   T73]      netlink_unicast+0x449/0x710
[ 5755.336193][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5755.336193][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5755.336193][   T73]      ___sys_sendmsg+0xee/0x170
[ 5755.336193][   T73]      __sys_sendmsg+0xcd/0x170
[ 5755.336193][   T73]      do_syscall_64+0xc6/0x1e0
[ 5755.336193][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5755.336193][   T73] 
[ 5755.338145][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5755.338145][   T73]      dst_init+0x84/0x4a0
[ 5755.338145][   T73]      dst_alloc+0x97/0x150
[ 5755.338145][   T73]      ip6_dst_alloc+0x23/0x90
[ 5755.338145][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5755.338145][   T73]      ip6_pol_route+0x56f/0x840
[ 5755.338145][   T73]      fib6_rule_lookup+0x456/0x630
[ 5755.338145][   T73]      ip6_route_input+0x59c/0xa50
[ 5755.338145][   T73]      ipv6_rcv+0x397/0x810
[ 5755.338145][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5755.338145][   T73]      process_backlog+0x101/0x620
[ 5755.338145][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5755.338145][   T73]      net_rx_action+0x495/0xbe0
[ 5755.338145][   T73]      __do_softirq+0x1b5/0x7f6
[ 5755.338145][   T73] 
[ 5755.339817][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5755.339817][   T73]      netdev_get_by_index+0x5e/0x80
[ 5755.339817][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5755.339817][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5755.339817][   T73]      ip6_route_add+0x1c/0x140
[ 5755.339817][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5755.339817][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5755.339817][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5755.339817][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5755.339817][   T73]      netlink_rcv_skb+0x130/0x360
[ 5755.339817][   T73]      netlink_unicast+0x449/0x710
[ 5755.339817][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5755.339817][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5755.339817][   T73]      ___sys_sendmsg+0xee/0x170
[ 5755.339817][   T73]      __sys_sendmsg+0xcd/0x170
[ 5755.339817][   T73]      do_syscall_64+0xc6/0x1e0
[ 5755.339817][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5755.339817][   T73] 
[ 5755.341863][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5755.341863][   T73]      netdev_get_by_index+0x5e/0x80
[ 5755.341863][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5755.341863][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5755.341863][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5755.341863][   T73]      ipv6_add_addr+0x411/0x2000
[ 5755.341863][   T73]      inet6_addr_add+0x30e/0xa40
[ 5755.341863][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5755.341863][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5755.341863][   T73]      netlink_rcv_skb+0x130/0x360
[ 5755.341863][   T73]      netlink_unicast+0x449/0x710
[ 5755.341863][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5755.341863][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5755.341863][   T73]      ___sys_sendmsg+0xee/0x170
[ 5755.341863][   T73]      __sys_sendmsg+0xcd/0x170
[ 5755.341863][   T73]      do_syscall_64+0xc6/0x1e0
[ 5755.341863][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5755.341863][   T73] 
[ 5755.343883][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5755.343883][   T73]      netdev_get_by_index+0x5e/0x80
[ 5755.343883][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5755.343883][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5755.343883][   T73]      ip6_route_add+0x1c/0x140
[ 5755.343883][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5755.343883][   T73]      addrconf_add_dev+0xe2/0x170
[ 5755.343883][   T73]      inet6_addr_add+0x12f/0xa40
[ 5755.343883][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5755.343883][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5755.343883][   T73]      netlink_rcv_skb+0x130/0x360
[ 5755.343883][   T73]      netlink_unicast+0x449/0x710
[ 5755.343883][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5755.343883][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5755.343883][   T73]      ___sys_sendmsg+0xee/0x170
[ 5755.343883][   T73]      __sys_sendmsg+0xcd/0x170
[ 5755.343883][   T73]      do_syscall_64+0xc6/0x1e0
[ 5755.343883][   T73] 
[ 5755.345879][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5755.345879][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5755.345879][   T73]      ipv6_find_idev+0x102/0x170
[ 5755.345879][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5755.345879][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5755.345879][   T73]      netlink_rcv_skb+0x130/0x360
[ 5755.345879][   T73]      netlink_unicast+0x449/0x710
[ 5755.345879][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5755.345879][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5755.345879][   T73]      ___sys_sendmsg+0xee/0x170
[ 5755.345879][   T73]      __sys_sendmsg+0xcd/0x170
[ 5755.345879][   T73]      do_syscall_64+0xc6/0x1e0
[ 5755.345879][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5755.345879][   T73] 
[ 5755.347446][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5755.347446][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5755.347446][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5755.347446][   T73]      ipv6_find_idev+0x102/0x170
[ 5755.347446][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5755.347446][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5755.347446][   T73]      netlink_rcv_skb+0x130/0x360
[ 5755.347446][   T73]      netlink_unicast+0x449/0x710
[ 5755.347446][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5755.347446][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5755.347446][   T73]      ___sys_sendmsg+0xee/0x170
[ 5755.347446][   T73]      __sys_sendmsg+0xcd/0x170
[ 5755.347446][   T73]      do_syscall_64+0xc6/0x1e0
[ 5755.347446][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5755.347446][   T73] 
[ 5755.349158][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5755.349450][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5755.349450][   T73]      netdev_get_by_index+0x5e/0x80
[ 5755.349450][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5755.349450][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5755.349450][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5755.349450][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5755.349450][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5755.349450][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5755.349450][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5755.349450][   T73]      addrconf_dad_begin+0x310/0x670
[ 5755.349450][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5755.349450][   T73]      process_one_work+0x84d/0x18a0
[ 5755.349450][   T73]      worker_thread+0x587/0xd30
[ 5755.349450][   T73]      kthread+0x28a/0x350
[ 5755.349450][   T73]      ret_from_fork+0x31/0x70
[ 5755.349450][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5755.349450][   T73] 
[ 5755.351418][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5755.351418][   T73]      netdev_get_by_index+0x5e/0x80
[ 5755.351418][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5755.351418][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5755.351418][   T73]      ip6_route_add+0x1c/0x140
[ 5755.351418][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5755.351418][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5755.351418][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5755.351418][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5755.351418][   T73]      netlink_rcv_skb+0x130/0x360
[ 5755.351418][   T73]      netlink_unicast+0x449/0x710
[ 5755.351418][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5755.351418][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5755.351418][   T73]      ___sys_sendmsg+0xee/0x170
[ 5755.351418][   T73]      __sys_sendmsg+0xcd/0x170
[ 5755.351418][   T73]      do_syscall_64+0xc6/0x1e0
[ 5755.351418][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5755.351418][   T73] 
[ 5755.353436][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5755.353436][   T73]      netdev_get_by_index+0x5e/0x80
[ 5755.353436][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5755.353436][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5755.353436][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5755.353436][   T73]      ipv6_add_addr+0x411/0x2000
[ 5755.353436][   T73]      inet6_addr_add+0x30e/0xa40
[ 5755.353436][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5755.353436][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5755.353436][   T73]      netlink_rcv_skb+0x130/0x360
[ 5755.353436][   T73]      netlink_unicast+0x449/0x710
[ 5755.353436][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5755.353436][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5755.353436][   T73]      ___sys_sendmsg+0xee/0x170
[ 5755.353436][   T73]      __sys_sendmsg+0xcd/0x170
[ 5755.353436][   T73]      do_syscall_64+0xc6/0x1e0
[ 5755.353436][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5755.353436][   T73] 
[ 5755.355465][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5755.355465][   T73]      netdev_get_by_index+0x5e/0x80
[ 5755.355465][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5755.355465][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5755.355465][   T73]      ip6_route_add+0x1c/0x140
[ 5755.355465][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5755.355465][   T73]      addrconf_add_dev+0xe2/0x170
[ 5755.355465][   T73]      inet6_addr_add+0x12f/0xa40
[ 5755.355465][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5755.355465][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5755.355465][   T73]      netlink_rcv_skb+0x130/0x360
[ 5755.355465][   T73]      netlink_unicast+0x449/0x710
[ 5755.355465][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5755.355465][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5755.355465][   T73]      ___sys_sendmsg+0xee/0x170
[ 5755.355465][   T73]      __sys_sendmsg+0xcd/0x170
[ 5755.355465][   T73]      do_syscall_64+0xc6/0x1e0
[ 5755.355465][   T73] 
[ 5755.357446][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5755.357446][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5755.357446][   T73]      ipv6_find_idev+0x102/0x170
[ 5755.357446][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5755.357446][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5755.357446][   T73]      netlink_rcv_skb+0x130/0x360
[ 5755.357446][   T73]      netlink_unicast+0x449/0x710
[ 5755.357446][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5755.357446][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5755.357446][   T73]      ___sys_sendmsg+0xee/0x170
[ 5755.357446][   T73]      __sys_sendmsg+0xcd/0x170
[ 5755.357446][   T73]      do_syscall_64+0xc6/0x1e0
[ 5755.357446][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5755.357446][   T73] 
[ 5755.359098][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5755.359098][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5755.359098][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5755.359098][   T73]      ipv6_find_idev+0x102/0x170
[ 5755.359098][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5755.359098][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5755.359098][   T73]      netlink_rcv_skb+0x130/0x360
[ 5755.359098][   T73]      netlink_unicast+0x449/0x710
[ 5755.359098][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5755.359098][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5755.359098][   T73]      ___sys_sendmsg+0xee/0x170
[ 5755.359098][   T73]      __sys_sendmsg+0xcd/0x170
[ 5755.359098][   T73]      do_syscall_64+0xc6/0x1e0
[ 5755.359098][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5755.359098][   T73] 
[ 5755.360813][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5755.361082][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5755.361082][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5755.361082][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5755.361082][   T73]      fib6_nh_init+0xa22/0x1580
[ 5755.361082][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5755.361082][   T73]      ip6_route_add+0x1c/0x140
[ 5755.361082][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5755.361082][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5755.361082][   T73]      netlink_rcv_skb+0x130/0x360
[ 5755.361082][   T73]      netlink_unicast+0x449/0x710
[ 5755.361082][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5755.361082][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5755.361082][   T73]      ___sys_sendmsg+0xee/0x170
[ 5755.361082][   T73]      __sys_sendmsg+0xcd/0x170
[ 5755.361082][   T73]      do_syscall_64+0xc6/0x1e0
[ 5755.361082][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5755.361082][   T73] 
[ 5755.363176][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5755.363176][   T73]      dst_init+0x84/0x4a0
[ 5755.363176][   T73]      dst_alloc+0x97/0x150
[ 5755.363176][   T73]      ip6_dst_alloc+0x23/0x90
[ 5755.363176][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5755.363176][   T73]      ip6_pol_route+0x56f/0x840
[ 5755.363176][   T73]      fib6_rule_lookup+0x456/0x630
[ 5755.363176][   T73]      ip6_route_input+0x59c/0xa50
[ 5755.363176][   T73]      ipv6_rcv+0x397/0x810
[ 5755.363176][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5755.363176][   T73]      process_backlog+0x101/0x620
[ 5755.363176][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5755.363176][   T73]      net_rx_action+0x495/0xbe0
[ 5755.363176][   T73]      __do_softirq+0x1b5/0x7f6
[ 5755.363176][   T73] 
[ 5755.365097][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5755.365097][   T73]      netdev_get_by_index+0x5e/0x80
[ 5755.365097][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5755.365097][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5755.365097][   T73]      ip6_route_add+0x1c/0x140
[ 5755.365097][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5755.365097][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5755.365097][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5755.365097][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5755.365097][   T73]      netlink_rcv_skb+0x130/0x360
[ 5755.365097][   T73]      netlink_unicast+0x449/0x710
[ 5755.365097][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5755.365097][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5755.365097][   T73]      ___sys_sendmsg+0xee/0x170
[ 5755.365097][   T73]      __sys_sendmsg+0xcd/0x170
[ 5755.365097][   T73]      do_syscall_64+0xc6/0x1e0
[ 5755.365097][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5755.365097][   T73] 
[ 5755.367375][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5755.367375][   T73]      netdev_get_by_index+0x5e/0x80
[ 5755.367375][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5755.367375][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5755.367375][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5755.367375][   T73]      ipv6_add_addr+0x411/0x2000
[ 5755.367375][   T73]      inet6_addr_add+0x30e/0xa40
[ 5755.367375][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5755.367375][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5755.367375][   T73]      netlink_rcv_skb+0x130/0x360
[ 5755.367375][   T73]      netlink_unicast+0x449/0x710
[ 5755.367375][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5755.367375][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5755.367375][   T73]      ___sys_sendmsg+0xee/0x170
[ 5755.367375][   T73]      __sys_sendmsg+0xcd/0x170
[ 5755.367375][   T73]      do_syscall_64+0xc6/0x1e0
[ 5755.367375][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5755.367375][   T73] 
[ 5755.369654][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5755.369654][   T73]      netdev_get_by_index+0x5e/0x80
[ 5755.369654][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5755.369654][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5755.369654][   T73]      ip6_route_add+0x1c/0x140
[ 5755.369654][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5755.369654][   T73]      addrconf_add_dev+0xe2/0x170
[ 5755.369654][   T73]      inet6_addr_add+0x12f/0xa40
[ 5755.369654][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5755.369654][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5755.369654][   T73]      netlink_rcv_skb+0x130/0x360
[ 5755.369654][   T73]      netlink_unicast+0x449/0x710
[ 5755.369654][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5755.369654][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5755.369654][   T73]      ___sys_sendmsg+0xee/0x170
[ 5755.369654][   T73]      __sys_sendmsg+0xcd/0x170
[ 5755.369654][   T73]      do_syscall_64+0xc6/0x1e0
[ 5755.369654][   T73] 
[ 5755.371819][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5755.371819][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5755.371819][   T73]      ipv6_find_idev+0x102/0x170
[ 5755.371819][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5755.371819][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5755.371819][   T73]      netlink_rcv_skb+0x130/0x360
[ 5755.371819][   T73]      netlink_unicast+0x449/0x710
[ 5755.371819][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5755.371819][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5755.371819][   T73]      ___sys_sendmsg+0xee/0x170
[ 5755.371819][   T73]      __sys_sendmsg+0xcd/0x170
[ 5755.371819][   T73]      do_syscall_64+0xc6/0x1e0
[ 5755.371819][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5755.371819][   T73] 
[ 5755.373627][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5755.373627][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5755.373627][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5755.373627][   T73]      ipv6_find_idev+0x102/0x170
[ 5755.373627][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5755.373627][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5755.373627][   T73]      netlink_rcv_skb+0x130/0x360
[ 5755.373627][   T73]      netlink_unicast+0x449/0x710
[ 5755.373627][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5755.373627][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5755.373627][   T73]      ___sys_sendmsg+0xee/0x170
[ 5755.373627][   T73]      __sys_sendmsg+0xcd/0x170
[ 5755.373627][   T73]      do_syscall_64+0xc6/0x1e0
[ 5755.373627][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5755.373627][   T73] 
[ 5755.375582][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5755.376302][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5755.376302][   T73]      netdev_get_by_index+0x5e/0x80
[ 5755.376302][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5755.376302][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5755.376302][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5755.376302][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5755.376302][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5755.376302][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5755.376302][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5755.376302][   T73]      addrconf_dad_begin+0x310/0x670
[ 5755.376302][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5755.376302][   T73]      process_one_work+0x84d/0x18a0
[ 5755.376302][   T73]      worker_thread+0x587/0xd30
[ 5755.376302][   T73]      kthread+0x28a/0x350
[ 5755.376302][   T73]      ret_from_fork+0x31/0x70
[ 5755.376302][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5755.376302][   T73] 
[ 5755.378234][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5755.378234][   T73]      netdev_get_by_index+0x5e/0x80
[ 5755.378234][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5755.378234][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5755.378234][   T73]      ip6_route_add+0x1c/0x140
[ 5755.378234][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5755.378234][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5755.378234][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5755.378234][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5755.378234][   T73]      netlink_rcv_skb+0x130/0x360
[ 5755.378234][   T73]      netlink_unicast+0x449/0x710
[ 5755.378234][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5755.378234][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5755.378234][   T73]      ___sys_sendmsg+0xee/0x170
[ 5755.378234][   T73]      __sys_sendmsg+0xcd/0x170
[ 5755.378234][   T73]      do_syscall_64+0xc6/0x1e0
[ 5755.378234][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5755.378234][   T73] 
[ 5755.380384][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5755.380384][   T73]      netdev_get_by_index+0x5e/0x80
[ 5755.380384][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5755.380384][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5755.380384][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5755.380384][   T73]      ipv6_add_addr+0x411/0x2000
[ 5755.380384][   T73]      inet6_addr_add+0x30e/0xa40
[ 5755.380384][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5755.380384][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5755.380384][   T73]      netlink_rcv_skb+0x130/0x360
[ 5755.380384][   T73]      netlink_unicast+0x449/0x710
[ 5755.380384][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5755.380384][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5755.380384][   T73]      ___sys_sendmsg+0xee/0x170
[ 5755.380384][   T73]      __sys_sendmsg+0xcd/0x170
[ 5755.380384][   T73]      do_syscall_64+0xc6/0x1e0
[ 5755.380384][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5755.380384][   T73] 
[ 5755.382595][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5755.382595][   T73]      netdev_get_by_index+0x5e/0x80
[ 5755.382595][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5755.382595][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5755.382595][   T73]      ip6_route_add+0x1c/0x140
[ 5755.382595][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5755.382595][   T73]      addrconf_add_dev+0xe2/0x170
[ 5755.382595][   T73]      inet6_addr_add+0x12f/0xa40
[ 5755.382595][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5755.382595][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5755.382595][   T73]      netlink_rcv_skb+0x130/0x360
[ 5755.382595][   T73]      netlink_unicast+0x449/0x710
[ 5755.382595][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5755.382595][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5755.382595][   T73]      ___sys_sendmsg+0xee/0x170
[ 5755.382595][   T73]      __sys_sendmsg+0xcd/0x170
[ 5755.382595][   T73]      do_syscall_64+0xc6/0x1e0
[ 5755.382595][   T73] 
[ 5755.384821][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5755.384821][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5755.384821][   T73]      ipv6_find_idev+0x102/0x170
[ 5755.384821][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5755.384821][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5755.384821][   T73]      netlink_rcv_skb+0x130/0x360
[ 5755.384821][   T73]      netlink_unicast+0x449/0x710
[ 5755.384821][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5755.384821][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5755.384821][   T73]      ___sys_sendmsg+0xee/0x170
[ 5755.384821][   T73]      __sys_sendmsg+0xcd/0x170
[ 5755.384821][   T73]      do_syscall_64+0xc6/0x1e0
[ 5755.384821][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5755.384821][   T73] 
[ 5755.386626][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5755.386626][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5755.386626][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5755.386626][   T73]      ipv6_find_idev+0x102/0x170
[ 5755.386626][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5755.386626][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5755.386626][   T73]      netlink_rcv_skb+0x130/0x360
[ 5755.386626][   T73]      netlink_unicast+0x449/0x710
[ 5755.386626][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5755.386626][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5755.386626][   T73]      ___sys_sendmsg+0xee/0x170
[ 5755.386626][   T73]      __sys_sendmsg+0xcd/0x170
[ 5755.386626][   T73]      do_syscall_64+0xc6/0x1e0
[ 5755.386626][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5755.386626][   T73] 
[ 5765.623749][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5765.624166][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5765.624166][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5765.624166][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5765.624166][   T73]      fib6_nh_init+0xa22/0x1580
[ 5765.624166][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5765.624166][   T73]      ip6_route_add+0x1c/0x140
[ 5765.624166][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5765.624166][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5765.624166][   T73]      netlink_rcv_skb+0x130/0x360
[ 5765.624166][   T73]      netlink_unicast+0x449/0x710
[ 5765.624166][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5765.624166][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5765.624166][   T73]      ___sys_sendmsg+0xee/0x170
[ 5765.624166][   T73]      __sys_sendmsg+0xcd/0x170
[ 5765.624166][   T73]      do_syscall_64+0xc6/0x1e0
[ 5765.624166][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5765.624166][   T73] 
[ 5765.626070][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5765.626070][   T73]      dst_init+0x84/0x4a0
[ 5765.626070][   T73]      dst_alloc+0x97/0x150
[ 5765.626070][   T73]      ip6_dst_alloc+0x23/0x90
[ 5765.626070][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5765.626070][   T73]      ip6_pol_route+0x56f/0x840
[ 5765.626070][   T73]      fib6_rule_lookup+0x456/0x630
[ 5765.626070][   T73]      ip6_route_input+0x59c/0xa50
[ 5765.626070][   T73]      ipv6_rcv+0x397/0x810
[ 5765.626070][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5765.626070][   T73]      process_backlog+0x101/0x620
[ 5765.626070][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5765.626070][   T73]      net_rx_action+0x495/0xbe0
[ 5765.626070][   T73]      __do_softirq+0x1b5/0x7f6
[ 5765.626070][   T73] 
[ 5765.627728][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5765.627728][   T73]      netdev_get_by_index+0x5e/0x80
[ 5765.627728][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5765.627728][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5765.627728][   T73]      ip6_route_add+0x1c/0x140
[ 5765.627728][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5765.627728][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5765.627728][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5765.627728][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5765.627728][   T73]      netlink_rcv_skb+0x130/0x360
[ 5765.627728][   T73]      netlink_unicast+0x449/0x710
[ 5765.627728][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5765.627728][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5765.627728][   T73]      ___sys_sendmsg+0xee/0x170
[ 5765.627728][   T73]      __sys_sendmsg+0xcd/0x170
[ 5765.627728][   T73]      do_syscall_64+0xc6/0x1e0
[ 5765.627728][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5765.627728][   T73] 
[ 5765.629741][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5765.629741][   T73]      netdev_get_by_index+0x5e/0x80
[ 5765.629741][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5765.629741][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5765.629741][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5765.629741][   T73]      ipv6_add_addr+0x411/0x2000
[ 5765.629741][   T73]      inet6_addr_add+0x30e/0xa40
[ 5765.629741][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5765.629741][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5765.629741][   T73]      netlink_rcv_skb+0x130/0x360
[ 5765.629741][   T73]      netlink_unicast+0x449/0x710
[ 5765.629741][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5765.629741][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5765.629741][   T73]      ___sys_sendmsg+0xee/0x170
[ 5765.629741][   T73]      __sys_sendmsg+0xcd/0x170
[ 5765.629741][   T73]      do_syscall_64+0xc6/0x1e0
[ 5765.629741][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5765.629741][   T73] 
[ 5765.631748][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5765.631748][   T73]      netdev_get_by_index+0x5e/0x80
[ 5765.631748][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5765.631748][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5765.631748][   T73]      ip6_route_add+0x1c/0x140
[ 5765.631748][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5765.631748][   T73]      addrconf_add_dev+0xe2/0x170
[ 5765.631748][   T73]      inet6_addr_add+0x12f/0xa40
[ 5765.631748][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5765.631748][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5765.631748][   T73]      netlink_rcv_skb+0x130/0x360
[ 5765.631748][   T73]      netlink_unicast+0x449/0x710
[ 5765.631748][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5765.631748][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5765.631748][   T73]      ___sys_sendmsg+0xee/0x170
[ 5765.631748][   T73]      __sys_sendmsg+0xcd/0x170
[ 5765.631748][   T73]      do_syscall_64+0xc6/0x1e0
[ 5765.631748][   T73] 
[ 5765.633725][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5765.633725][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5765.633725][   T73]      ipv6_find_idev+0x102/0x170
[ 5765.633725][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5765.633725][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5765.633725][   T73]      netlink_rcv_skb+0x130/0x360
[ 5765.633725][   T73]      netlink_unicast+0x449/0x710
[ 5765.633725][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5765.633725][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5765.633725][   T73]      ___sys_sendmsg+0xee/0x170
[ 5765.633725][   T73]      __sys_sendmsg+0xcd/0x170
[ 5765.633725][   T73]      do_syscall_64+0xc6/0x1e0
[ 5765.633725][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5765.633725][   T73] 
[ 5765.635271][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5765.635271][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5765.635271][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5765.635271][   T73]      ipv6_find_idev+0x102/0x170
[ 5765.635271][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5765.635271][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5765.635271][   T73]      netlink_rcv_skb+0x130/0x360
[ 5765.635271][   T73]      netlink_unicast+0x449/0x710
[ 5765.635271][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5765.635271][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5765.635271][   T73]      ___sys_sendmsg+0xee/0x170
[ 5765.635271][   T73]      __sys_sendmsg+0xcd/0x170
[ 5765.635271][   T73]      do_syscall_64+0xc6/0x1e0
[ 5765.635271][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5765.635271][   T73] 
[ 5765.636969][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5765.637243][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5765.637243][   T73]      netdev_get_by_index+0x5e/0x80
[ 5765.637243][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5765.637243][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5765.637243][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5765.637243][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5765.637243][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5765.637243][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5765.637243][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5765.637243][   T73]      addrconf_dad_begin+0x310/0x670
[ 5765.637243][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5765.637243][   T73]      process_one_work+0x84d/0x18a0
[ 5765.637243][   T73]      worker_thread+0x587/0xd30
[ 5765.637243][   T73]      kthread+0x28a/0x350
[ 5765.637243][   T73]      ret_from_fork+0x31/0x70
[ 5765.637243][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5765.637243][   T73] 
[ 5765.639172][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5765.639172][   T73]      netdev_get_by_index+0x5e/0x80
[ 5765.639172][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5765.639172][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5765.639172][   T73]      ip6_route_add+0x1c/0x140
[ 5765.639172][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5765.639172][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5765.639172][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5765.639172][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5765.639172][   T73]      netlink_rcv_skb+0x130/0x360
[ 5765.639172][   T73]      netlink_unicast+0x449/0x710
[ 5765.639172][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5765.639172][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5765.639172][   T73]      ___sys_sendmsg+0xee/0x170
[ 5765.639172][   T73]      __sys_sendmsg+0xcd/0x170
[ 5765.639172][   T73]      do_syscall_64+0xc6/0x1e0
[ 5765.639172][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5765.639172][   T73] 
[ 5765.641201][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5765.641201][   T73]      netdev_get_by_index+0x5e/0x80
[ 5765.641201][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5765.641201][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5765.641201][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5765.641201][   T73]      ipv6_add_addr+0x411/0x2000
[ 5765.641201][   T73]      inet6_addr_add+0x30e/0xa40
[ 5765.641201][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5765.641201][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5765.641201][   T73]      netlink_rcv_skb+0x130/0x360
[ 5765.641201][   T73]      netlink_unicast+0x449/0x710
[ 5765.641201][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5765.641201][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5765.641201][   T73]      ___sys_sendmsg+0xee/0x170
[ 5765.641201][   T73]      __sys_sendmsg+0xcd/0x170
[ 5765.641201][   T73]      do_syscall_64+0xc6/0x1e0
[ 5765.641201][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5765.641201][   T73] 
[ 5765.643194][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5765.643194][   T73]      netdev_get_by_index+0x5e/0x80
[ 5765.643194][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5765.643194][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5765.643194][   T73]      ip6_route_add+0x1c/0x140
[ 5765.643194][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5765.643194][   T73]      addrconf_add_dev+0xe2/0x170
[ 5765.643194][   T73]      inet6_addr_add+0x12f/0xa40
[ 5765.643194][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5765.643194][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5765.643194][   T73]      netlink_rcv_skb+0x130/0x360
[ 5765.643194][   T73]      netlink_unicast+0x449/0x710
[ 5765.643194][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5765.643194][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5765.643194][   T73]      ___sys_sendmsg+0xee/0x170
[ 5765.643194][   T73]      __sys_sendmsg+0xcd/0x170
[ 5765.643194][   T73]      do_syscall_64+0xc6/0x1e0
[ 5765.643194][   T73] 
[ 5765.645165][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5765.645165][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5765.645165][   T73]      ipv6_find_idev+0x102/0x170
[ 5765.645165][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5765.645165][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5765.645165][   T73]      netlink_rcv_skb+0x130/0x360
[ 5765.645165][   T73]      netlink_unicast+0x449/0x710
[ 5765.645165][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5765.645165][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5765.645165][   T73]      ___sys_sendmsg+0xee/0x170
[ 5765.645165][   T73]      __sys_sendmsg+0xcd/0x170
[ 5765.645165][   T73]      do_syscall_64+0xc6/0x1e0
[ 5765.645165][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5765.645165][   T73] 
[ 5765.646709][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5765.646709][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5765.646709][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5765.646709][   T73]      ipv6_find_idev+0x102/0x170
[ 5765.646709][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5765.646709][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5765.646709][   T73]      netlink_rcv_skb+0x130/0x360
[ 5765.646709][   T73]      netlink_unicast+0x449/0x710
[ 5765.646709][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5765.646709][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5765.646709][   T73]      ___sys_sendmsg+0xee/0x170
[ 5765.646709][   T73]      __sys_sendmsg+0xcd/0x170
[ 5765.646709][   T73]      do_syscall_64+0xc6/0x1e0
[ 5765.646709][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5765.646709][   T73] 
[ 5765.648396][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5765.648669][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5765.648669][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5765.648669][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5765.648669][   T73]      fib6_nh_init+0xa22/0x1580
[ 5765.648669][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5765.648669][   T73]      ip6_route_add+0x1c/0x140
[ 5765.648669][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5765.648669][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5765.648669][   T73]      netlink_rcv_skb+0x130/0x360
[ 5765.648669][   T73]      netlink_unicast+0x449/0x710
[ 5765.648669][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5765.648669][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5765.648669][   T73]      ___sys_sendmsg+0xee/0x170
[ 5765.648669][   T73]      __sys_sendmsg+0xcd/0x170
[ 5765.648669][   T73]      do_syscall_64+0xc6/0x1e0
[ 5765.648669][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5765.648669][   T73] 
[ 5765.650747][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5765.650747][   T73]      dst_init+0x84/0x4a0
[ 5765.650747][   T73]      dst_alloc+0x97/0x150
[ 5765.650747][   T73]      ip6_dst_alloc+0x23/0x90
[ 5765.650747][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5765.650747][   T73]      ip6_pol_route+0x56f/0x840
[ 5765.650747][   T73]      fib6_rule_lookup+0x456/0x630
[ 5765.650747][   T73]      ip6_route_input+0x59c/0xa50
[ 5765.650747][   T73]      ipv6_rcv+0x397/0x810
[ 5765.650747][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5765.650747][   T73]      process_backlog+0x101/0x620
[ 5765.650747][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5765.650747][   T73]      net_rx_action+0x495/0xbe0
[ 5765.650747][   T73]      __do_softirq+0x1b5/0x7f6
[ 5765.650747][   T73] 
[ 5765.652633][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5765.652633][   T73]      netdev_get_by_index+0x5e/0x80
[ 5765.652633][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5765.652633][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5765.652633][   T73]      ip6_route_add+0x1c/0x140
[ 5765.652633][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5765.652633][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5765.652633][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5765.652633][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5765.652633][   T73]      netlink_rcv_skb+0x130/0x360
[ 5765.652633][   T73]      netlink_unicast+0x449/0x710
[ 5765.652633][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5765.652633][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5765.652633][   T73]      ___sys_sendmsg+0xee/0x170
[ 5765.652633][   T73]      __sys_sendmsg+0xcd/0x170
[ 5765.652633][   T73]      do_syscall_64+0xc6/0x1e0
[ 5765.652633][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5765.652633][   T73] 
[ 5765.654893][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5765.654893][   T73]      netdev_get_by_index+0x5e/0x80
[ 5765.654893][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5765.654893][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5765.654893][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5765.654893][   T73]      ipv6_add_addr+0x411/0x2000
[ 5765.654893][   T73]      inet6_addr_add+0x30e/0xa40
[ 5765.654893][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5765.654893][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5765.654893][   T73]      netlink_rcv_skb+0x130/0x360
[ 5765.654893][   T73]      netlink_unicast+0x449/0x710
[ 5765.654893][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5765.654893][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5765.654893][   T73]      ___sys_sendmsg+0xee/0x170
[ 5765.654893][   T73]      __sys_sendmsg+0xcd/0x170
[ 5765.654893][   T73]      do_syscall_64+0xc6/0x1e0
[ 5765.654893][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5765.654893][   T73] 
[ 5765.657667][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5765.657667][   T73]      netdev_get_by_index+0x5e/0x80
[ 5765.657667][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5765.657667][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5765.657667][   T73]      ip6_route_add+0x1c/0x140
[ 5765.657667][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5765.657667][   T73]      addrconf_add_dev+0xe2/0x170
[ 5765.657667][   T73]      inet6_addr_add+0x12f/0xa40
[ 5765.657667][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5765.657667][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5765.657667][   T73]      netlink_rcv_skb+0x130/0x360
[ 5765.657667][   T73]      netlink_unicast+0x449/0x710
[ 5765.657667][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5765.657667][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5765.657667][   T73]      ___sys_sendmsg+0xee/0x170
[ 5765.657667][   T73]      __sys_sendmsg+0xcd/0x170
[ 5765.657667][   T73]      do_syscall_64+0xc6/0x1e0
[ 5765.657667][   T73] 
[ 5765.659820][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5765.659820][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5765.659820][   T73]      ipv6_find_idev+0x102/0x170
[ 5765.659820][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5765.659820][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5765.659820][   T73]      netlink_rcv_skb+0x130/0x360
[ 5765.659820][   T73]      netlink_unicast+0x449/0x710
[ 5765.659820][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5765.659820][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5765.659820][   T73]      ___sys_sendmsg+0xee/0x170
[ 5765.659820][   T73]      __sys_sendmsg+0xcd/0x170
[ 5765.659820][   T73]      do_syscall_64+0xc6/0x1e0
[ 5765.659820][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5765.659820][   T73] 
[ 5765.661614][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5765.661614][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5765.661614][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5765.661614][   T73]      ipv6_find_idev+0x102/0x170
[ 5765.661614][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5765.661614][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5765.661614][   T73]      netlink_rcv_skb+0x130/0x360
[ 5765.661614][   T73]      netlink_unicast+0x449/0x710
[ 5765.661614][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5765.661614][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5765.661614][   T73]      ___sys_sendmsg+0xee/0x170
[ 5765.661614][   T73]      __sys_sendmsg+0xcd/0x170
[ 5765.661614][   T73]      do_syscall_64+0xc6/0x1e0
[ 5765.661614][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5765.661614][   T73] 
[ 5765.663539][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5765.663819][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5765.663819][   T73]      netdev_get_by_index+0x5e/0x80
[ 5765.663819][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5765.663819][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5765.663819][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5765.663819][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5765.663819][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5765.663819][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5765.663819][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5765.663819][   T73]      addrconf_dad_begin+0x310/0x670
[ 5765.663819][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5765.663819][   T73]      process_one_work+0x84d/0x18a0
[ 5765.663819][   T73]      worker_thread+0x587/0xd30
[ 5765.663819][   T73]      kthread+0x28a/0x350
[ 5765.663819][   T73]      ret_from_fork+0x31/0x70
[ 5765.663819][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5765.663819][   T73] 
[ 5765.665984][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5765.665984][   T73]      netdev_get_by_index+0x5e/0x80
[ 5765.665984][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5765.665984][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5765.665984][   T73]      ip6_route_add+0x1c/0x140
[ 5765.665984][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5765.665984][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5765.665984][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5765.665984][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5765.665984][   T73]      netlink_rcv_skb+0x130/0x360
[ 5765.665984][   T73]      netlink_unicast+0x449/0x710
[ 5765.665984][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5765.665984][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5765.665984][   T73]      ___sys_sendmsg+0xee/0x170
[ 5765.665984][   T73]      __sys_sendmsg+0xcd/0x170
[ 5765.665984][   T73]      do_syscall_64+0xc6/0x1e0
[ 5765.665984][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5765.665984][   T73] 
[ 5765.668838][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5765.668838][   T73]      netdev_get_by_index+0x5e/0x80
[ 5765.668838][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5765.668838][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5765.668838][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5765.668838][   T73]      ipv6_add_addr+0x411/0x2000
[ 5765.668838][   T73]      inet6_addr_add+0x30e/0xa40
[ 5765.668838][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5765.668838][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5765.668838][   T73]      netlink_rcv_skb+0x130/0x360
[ 5765.668838][   T73]      netlink_unicast+0x449/0x710
[ 5765.668838][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5765.668838][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5765.668838][   T73]      ___sys_sendmsg+0xee/0x170
[ 5765.668838][   T73]      __sys_sendmsg+0xcd/0x170
[ 5765.668838][   T73]      do_syscall_64+0xc6/0x1e0
[ 5765.668838][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5765.668838][   T73] 
[ 5765.671083][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5765.671083][   T73]      netdev_get_by_index+0x5e/0x80
[ 5765.671083][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5765.671083][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5765.671083][   T73]      ip6_route_add+0x1c/0x140
[ 5765.671083][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5765.671083][   T73]      addrconf_add_dev+0xe2/0x170
[ 5765.671083][   T73]      inet6_addr_add+0x12f/0xa40
[ 5765.671083][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5765.671083][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5765.671083][   T73]      netlink_rcv_skb+0x130/0x360
[ 5765.671083][   T73]      netlink_unicast+0x449/0x710
[ 5765.671083][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5765.671083][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5765.671083][   T73]      ___sys_sendmsg+0xee/0x170
[ 5765.671083][   T73]      __sys_sendmsg+0xcd/0x170
[ 5765.671083][   T73]      do_syscall_64+0xc6/0x1e0
[ 5765.671083][   T73] 
[ 5765.673348][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5765.673348][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5765.673348][   T73]      ipv6_find_idev+0x102/0x170
[ 5765.673348][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5765.673348][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5765.673348][   T73]      netlink_rcv_skb+0x130/0x360
[ 5765.673348][   T73]      netlink_unicast+0x449/0x710
[ 5765.673348][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5765.673348][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5765.673348][   T73]      ___sys_sendmsg+0xee/0x170
[ 5765.673348][   T73]      __sys_sendmsg+0xcd/0x170
[ 5765.673348][   T73]      do_syscall_64+0xc6/0x1e0
[ 5765.673348][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5765.673348][   T73] 
[ 5765.675063][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5765.675063][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5765.675063][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5765.675063][   T73]      ipv6_find_idev+0x102/0x170
[ 5765.675063][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5765.675063][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5765.675063][   T73]      netlink_rcv_skb+0x130/0x360
[ 5765.675063][   T73]      netlink_unicast+0x449/0x710
[ 5765.675063][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5765.675063][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5765.675063][   T73]      ___sys_sendmsg+0xee/0x170
[ 5765.675063][   T73]      __sys_sendmsg+0xcd/0x170
[ 5765.675063][   T73]      do_syscall_64+0xc6/0x1e0
[ 5765.675063][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5765.675063][   T73] 
[ 5775.919839][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5775.920301][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5775.920301][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5775.920301][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5775.920301][   T73]      fib6_nh_init+0xa22/0x1580
[ 5775.920301][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5775.920301][   T73]      ip6_route_add+0x1c/0x140
[ 5775.920301][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5775.920301][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5775.920301][   T73]      netlink_rcv_skb+0x130/0x360
[ 5775.920301][   T73]      netlink_unicast+0x449/0x710
[ 5775.920301][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5775.920301][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5775.920301][   T73]      ___sys_sendmsg+0xee/0x170
[ 5775.920301][   T73]      __sys_sendmsg+0xcd/0x170
[ 5775.920301][   T73]      do_syscall_64+0xc6/0x1e0
[ 5775.920301][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5775.920301][   T73] 
[ 5775.922193][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5775.922193][   T73]      dst_init+0x84/0x4a0
[ 5775.922193][   T73]      dst_alloc+0x97/0x150
[ 5775.922193][   T73]      ip6_dst_alloc+0x23/0x90
[ 5775.922193][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5775.922193][   T73]      ip6_pol_route+0x56f/0x840
[ 5775.922193][   T73]      fib6_rule_lookup+0x456/0x630
[ 5775.922193][   T73]      ip6_route_input+0x59c/0xa50
[ 5775.922193][   T73]      ipv6_rcv+0x397/0x810
[ 5775.922193][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5775.922193][   T73]      process_backlog+0x101/0x620
[ 5775.922193][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5775.922193][   T73]      net_rx_action+0x495/0xbe0
[ 5775.922193][   T73]      __do_softirq+0x1b5/0x7f6
[ 5775.922193][   T73] 
[ 5775.923837][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5775.923837][   T73]      netdev_get_by_index+0x5e/0x80
[ 5775.923837][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5775.923837][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5775.923837][   T73]      ip6_route_add+0x1c/0x140
[ 5775.923837][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5775.923837][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5775.923837][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5775.923837][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5775.923837][   T73]      netlink_rcv_skb+0x130/0x360
[ 5775.923837][   T73]      netlink_unicast+0x449/0x710
[ 5775.923837][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5775.923837][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5775.923837][   T73]      ___sys_sendmsg+0xee/0x170
[ 5775.923837][   T73]      __sys_sendmsg+0xcd/0x170
[ 5775.923837][   T73]      do_syscall_64+0xc6/0x1e0
[ 5775.923837][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5775.923837][   T73] 
[ 5775.925835][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5775.925835][   T73]      netdev_get_by_index+0x5e/0x80
[ 5775.925835][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5775.925835][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5775.925835][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5775.925835][   T73]      ipv6_add_addr+0x411/0x2000
[ 5775.925835][   T73]      inet6_addr_add+0x30e/0xa40
[ 5775.925835][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5775.925835][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5775.925835][   T73]      netlink_rcv_skb+0x130/0x360
[ 5775.925835][   T73]      netlink_unicast+0x449/0x710
[ 5775.925835][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5775.925835][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5775.925835][   T73]      ___sys_sendmsg+0xee/0x170
[ 5775.925835][   T73]      __sys_sendmsg+0xcd/0x170
[ 5775.925835][   T73]      do_syscall_64+0xc6/0x1e0
[ 5775.925835][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5775.925835][   T73] 
[ 5775.927844][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5775.927844][   T73]      netdev_get_by_index+0x5e/0x80
[ 5775.927844][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5775.927844][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5775.927844][   T73]      ip6_route_add+0x1c/0x140
[ 5775.927844][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5775.927844][   T73]      addrconf_add_dev+0xe2/0x170
[ 5775.927844][   T73]      inet6_addr_add+0x12f/0xa40
[ 5775.927844][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5775.927844][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5775.927844][   T73]      netlink_rcv_skb+0x130/0x360
[ 5775.927844][   T73]      netlink_unicast+0x449/0x710
[ 5775.927844][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5775.927844][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5775.927844][   T73]      ___sys_sendmsg+0xee/0x170
[ 5775.927844][   T73]      __sys_sendmsg+0xcd/0x170
[ 5775.927844][   T73]      do_syscall_64+0xc6/0x1e0
[ 5775.927844][   T73] 
[ 5775.929799][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5775.929799][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5775.929799][   T73]      ipv6_find_idev+0x102/0x170
[ 5775.929799][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5775.929799][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5775.929799][   T73]      netlink_rcv_skb+0x130/0x360
[ 5775.929799][   T73]      netlink_unicast+0x449/0x710
[ 5775.929799][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5775.929799][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5775.929799][   T73]      ___sys_sendmsg+0xee/0x170
[ 5775.929799][   T73]      __sys_sendmsg+0xcd/0x170
[ 5775.929799][   T73]      do_syscall_64+0xc6/0x1e0
[ 5775.929799][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5775.929799][   T73] 
[ 5775.931332][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5775.931332][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5775.931332][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5775.931332][   T73]      ipv6_find_idev+0x102/0x170
[ 5775.931332][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5775.931332][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5775.931332][   T73]      netlink_rcv_skb+0x130/0x360
[ 5775.931332][   T73]      netlink_unicast+0x449/0x710
[ 5775.931332][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5775.931332][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5775.931332][   T73]      ___sys_sendmsg+0xee/0x170
[ 5775.931332][   T73]      __sys_sendmsg+0xcd/0x170
[ 5775.931332][   T73]      do_syscall_64+0xc6/0x1e0
[ 5775.931332][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5775.931332][   T73] 
[ 5775.933026][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5775.933305][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5775.933305][   T73]      netdev_get_by_index+0x5e/0x80
[ 5775.933305][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5775.933305][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5775.933305][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5775.933305][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5775.933305][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5775.933305][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5775.933305][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5775.933305][   T73]      addrconf_dad_begin+0x310/0x670
[ 5775.933305][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5775.933305][   T73]      process_one_work+0x84d/0x18a0
[ 5775.933305][   T73]      worker_thread+0x587/0xd30
[ 5775.933305][   T73]      kthread+0x28a/0x350
[ 5775.933305][   T73]      ret_from_fork+0x31/0x70
[ 5775.933305][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5775.933305][   T73] 
[ 5775.935204][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5775.935204][   T73]      netdev_get_by_index+0x5e/0x80
[ 5775.935204][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5775.935204][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5775.935204][   T73]      ip6_route_add+0x1c/0x140
[ 5775.935204][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5775.935204][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5775.935204][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5775.935204][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5775.935204][   T73]      netlink_rcv_skb+0x130/0x360
[ 5775.935204][   T73]      netlink_unicast+0x449/0x710
[ 5775.935204][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5775.935204][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5775.935204][   T73]      ___sys_sendmsg+0xee/0x170
[ 5775.935204][   T73]      __sys_sendmsg+0xcd/0x170
[ 5775.935204][   T73]      do_syscall_64+0xc6/0x1e0
[ 5775.935204][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5775.935204][   T73] 
[ 5775.937205][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5775.937205][   T73]      netdev_get_by_index+0x5e/0x80
[ 5775.937205][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5775.937205][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5775.937205][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5775.937205][   T73]      ipv6_add_addr+0x411/0x2000
[ 5775.937205][   T73]      inet6_addr_add+0x30e/0xa40
[ 5775.937205][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5775.937205][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5775.937205][   T73]      netlink_rcv_skb+0x130/0x360
[ 5775.937205][   T73]      netlink_unicast+0x449/0x710
[ 5775.937205][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5775.937205][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5775.937205][   T73]      ___sys_sendmsg+0xee/0x170
[ 5775.937205][   T73]      __sys_sendmsg+0xcd/0x170
[ 5775.937205][   T73]      do_syscall_64+0xc6/0x1e0
[ 5775.937205][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5775.937205][   T73] 
[ 5775.939204][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5775.939204][   T73]      netdev_get_by_index+0x5e/0x80
[ 5775.939204][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5775.939204][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5775.939204][   T73]      ip6_route_add+0x1c/0x140
[ 5775.939204][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5775.939204][   T73]      addrconf_add_dev+0xe2/0x170
[ 5775.939204][   T73]      inet6_addr_add+0x12f/0xa40
[ 5775.939204][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5775.939204][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5775.939204][   T73]      netlink_rcv_skb+0x130/0x360
[ 5775.939204][   T73]      netlink_unicast+0x449/0x710
[ 5775.939204][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5775.939204][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5775.939204][   T73]      ___sys_sendmsg+0xee/0x170
[ 5775.939204][   T73]      __sys_sendmsg+0xcd/0x170
[ 5775.939204][   T73]      do_syscall_64+0xc6/0x1e0
[ 5775.939204][   T73] 
[ 5775.944218][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5775.944218][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5775.944218][   T73]      ipv6_find_idev+0x102/0x170
[ 5775.944218][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5775.944218][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5775.944218][   T73]      netlink_rcv_skb+0x130/0x360
[ 5775.944218][   T73]      netlink_unicast+0x449/0x710
[ 5775.944218][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5775.944218][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5775.944218][   T73]      ___sys_sendmsg+0xee/0x170
[ 5775.944218][   T73]      __sys_sendmsg+0xcd/0x170
[ 5775.944218][   T73]      do_syscall_64+0xc6/0x1e0
[ 5775.944218][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5775.944218][   T73] 
[ 5775.945757][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5775.945757][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5775.945757][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5775.945757][   T73]      ipv6_find_idev+0x102/0x170
[ 5775.945757][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5775.945757][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5775.945757][   T73]      netlink_rcv_skb+0x130/0x360
[ 5775.945757][   T73]      netlink_unicast+0x449/0x710
[ 5775.945757][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5775.945757][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5775.945757][   T73]      ___sys_sendmsg+0xee/0x170
[ 5775.945757][   T73]      __sys_sendmsg+0xcd/0x170
[ 5775.945757][   T73]      do_syscall_64+0xc6/0x1e0
[ 5775.945757][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5775.945757][   T73] 
[ 5775.947445][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5775.947760][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5775.947760][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5775.947760][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5775.947760][   T73]      fib6_nh_init+0xa22/0x1580
[ 5775.947760][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5775.947760][   T73]      ip6_route_add+0x1c/0x140
[ 5775.947760][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5775.947760][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5775.947760][   T73]      netlink_rcv_skb+0x130/0x360
[ 5775.947760][   T73]      netlink_unicast+0x449/0x710
[ 5775.947760][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5775.947760][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5775.947760][   T73]      ___sys_sendmsg+0xee/0x170
[ 5775.947760][   T73]      __sys_sendmsg+0xcd/0x170
[ 5775.947760][   T73]      do_syscall_64+0xc6/0x1e0
[ 5775.947760][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5775.947760][   T73] 
[ 5775.949820][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5775.949820][   T73]      dst_init+0x84/0x4a0
[ 5775.949820][   T73]      dst_alloc+0x97/0x150
[ 5775.949820][   T73]      ip6_dst_alloc+0x23/0x90
[ 5775.949820][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5775.949820][   T73]      ip6_pol_route+0x56f/0x840
[ 5775.949820][   T73]      fib6_rule_lookup+0x456/0x630
[ 5775.949820][   T73]      ip6_route_input+0x59c/0xa50
[ 5775.949820][   T73]      ipv6_rcv+0x397/0x810
[ 5775.949820][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5775.949820][   T73]      process_backlog+0x101/0x620
[ 5775.949820][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5775.949820][   T73]      net_rx_action+0x495/0xbe0
[ 5775.949820][   T73]      __do_softirq+0x1b5/0x7f6
[ 5775.949820][   T73] 
[ 5775.951633][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5775.951633][   T73]      netdev_get_by_index+0x5e/0x80
[ 5775.951633][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5775.951633][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5775.951633][   T73]      ip6_route_add+0x1c/0x140
[ 5775.951633][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5775.951633][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5775.951633][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5775.951633][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5775.951633][   T73]      netlink_rcv_skb+0x130/0x360
[ 5775.951633][   T73]      netlink_unicast+0x449/0x710
[ 5775.951633][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5775.951633][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5775.951633][   T73]      ___sys_sendmsg+0xee/0x170
[ 5775.951633][   T73]      __sys_sendmsg+0xcd/0x170
[ 5775.951633][   T73]      do_syscall_64+0xc6/0x1e0
[ 5775.951633][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5775.951633][   T73] 
[ 5775.953864][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5775.953864][   T73]      netdev_get_by_index+0x5e/0x80
[ 5775.953864][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5775.953864][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5775.953864][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5775.953864][   T73]      ipv6_add_addr+0x411/0x2000
[ 5775.953864][   T73]      inet6_addr_add+0x30e/0xa40
[ 5775.953864][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5775.953864][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5775.953864][   T73]      netlink_rcv_skb+0x130/0x360
[ 5775.953864][   T73]      netlink_unicast+0x449/0x710
[ 5775.953864][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5775.953864][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5775.953864][   T73]      ___sys_sendmsg+0xee/0x170
[ 5775.953864][   T73]      __sys_sendmsg+0xcd/0x170
[ 5775.953864][   T73]      do_syscall_64+0xc6/0x1e0
[ 5775.953864][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5775.953864][   T73] 
[ 5775.956160][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5775.956160][   T73]      netdev_get_by_index+0x5e/0x80
[ 5775.956160][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5775.956160][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5775.956160][   T73]      ip6_route_add+0x1c/0x140
[ 5775.956160][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5775.956160][   T73]      addrconf_add_dev+0xe2/0x170
[ 5775.956160][   T73]      inet6_addr_add+0x12f/0xa40
[ 5775.956160][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5775.956160][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5775.956160][   T73]      netlink_rcv_skb+0x130/0x360
[ 5775.956160][   T73]      netlink_unicast+0x449/0x710
[ 5775.956160][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5775.956160][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5775.956160][   T73]      ___sys_sendmsg+0xee/0x170
[ 5775.956160][   T73]      __sys_sendmsg+0xcd/0x170
[ 5775.956160][   T73]      do_syscall_64+0xc6/0x1e0
[ 5775.956160][   T73] 
[ 5775.958271][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5775.958271][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5775.958271][   T73]      ipv6_find_idev+0x102/0x170
[ 5775.958271][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5775.958271][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5775.958271][   T73]      netlink_rcv_skb+0x130/0x360
[ 5775.958271][   T73]      netlink_unicast+0x449/0x710
[ 5775.958271][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5775.958271][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5775.958271][   T73]      ___sys_sendmsg+0xee/0x170
[ 5775.958271][   T73]      __sys_sendmsg+0xcd/0x170
[ 5775.958271][   T73]      do_syscall_64+0xc6/0x1e0
[ 5775.958271][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5775.958271][   T73] 
[ 5775.959991][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5775.959991][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5775.959991][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5775.959991][   T73]      ipv6_find_idev+0x102/0x170
[ 5775.959991][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5775.959991][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5775.959991][   T73]      netlink_rcv_skb+0x130/0x360
[ 5775.959991][   T73]      netlink_unicast+0x449/0x710
[ 5775.959991][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5775.959991][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5775.959991][   T73]      ___sys_sendmsg+0xee/0x170
[ 5775.959991][   T73]      __sys_sendmsg+0xcd/0x170
[ 5775.959991][   T73]      do_syscall_64+0xc6/0x1e0
[ 5775.959991][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5775.959991][   T73] 
[ 5775.961897][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5775.962171][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5775.962171][   T73]      netdev_get_by_index+0x5e/0x80
[ 5775.962171][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5775.962171][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5775.962171][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5775.962171][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5775.962171][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5775.962171][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5775.962171][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5775.962171][   T73]      addrconf_dad_begin+0x310/0x670
[ 5775.962171][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5775.962171][   T73]      process_one_work+0x84d/0x18a0
[ 5775.962171][   T73]      worker_thread+0x587/0xd30
[ 5775.962171][   T73]      kthread+0x28a/0x350
[ 5775.962171][   T73]      ret_from_fork+0x31/0x70
[ 5775.962171][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5775.962171][   T73] 
[ 5775.964326][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5775.964326][   T73]      netdev_get_by_index+0x5e/0x80
[ 5775.964326][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5775.964326][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5775.964326][   T73]      ip6_route_add+0x1c/0x140
[ 5775.964326][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5775.964326][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5775.964326][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5775.964326][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5775.964326][   T73]      netlink_rcv_skb+0x130/0x360
[ 5775.964326][   T73]      netlink_unicast+0x449/0x710
[ 5775.964326][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5775.964326][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5775.964326][   T73]      ___sys_sendmsg+0xee/0x170
[ 5775.964326][   T73]      __sys_sendmsg+0xcd/0x170
[ 5775.964326][   T73]      do_syscall_64+0xc6/0x1e0
[ 5775.964326][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5775.964326][   T73] 
[ 5775.966570][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5775.966570][   T73]      netdev_get_by_index+0x5e/0x80
[ 5775.966570][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5775.966570][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5775.966570][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5775.966570][   T73]      ipv6_add_addr+0x411/0x2000
[ 5775.966570][   T73]      inet6_addr_add+0x30e/0xa40
[ 5775.966570][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5775.966570][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5775.966570][   T73]      netlink_rcv_skb+0x130/0x360
[ 5775.966570][   T73]      netlink_unicast+0x449/0x710
[ 5775.966570][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5775.966570][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5775.966570][   T73]      ___sys_sendmsg+0xee/0x170
[ 5775.966570][   T73]      __sys_sendmsg+0xcd/0x170
[ 5775.966570][   T73]      do_syscall_64+0xc6/0x1e0
[ 5775.966570][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5775.966570][   T73] 
[ 5775.968818][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5775.968818][   T73]      netdev_get_by_index+0x5e/0x80
[ 5775.968818][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5775.968818][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5775.968818][   T73]      ip6_route_add+0x1c/0x140
[ 5775.968818][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5775.968818][   T73]      addrconf_add_dev+0xe2/0x170
[ 5775.968818][   T73]      inet6_addr_add+0x12f/0xa40
[ 5775.968818][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5775.968818][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5775.968818][   T73]      netlink_rcv_skb+0x130/0x360
[ 5775.968818][   T73]      netlink_unicast+0x449/0x710
[ 5775.968818][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5775.968818][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5775.968818][   T73]      ___sys_sendmsg+0xee/0x170
[ 5775.968818][   T73]      __sys_sendmsg+0xcd/0x170
[ 5775.968818][   T73]      do_syscall_64+0xc6/0x1e0
[ 5775.968818][   T73] 
[ 5775.971016][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5775.971016][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5775.971016][   T73]      ipv6_find_idev+0x102/0x170
[ 5775.971016][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5775.971016][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5775.971016][   T73]      netlink_rcv_skb+0x130/0x360
[ 5775.971016][   T73]      netlink_unicast+0x449/0x710
[ 5775.971016][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5775.971016][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5775.971016][   T73]      ___sys_sendmsg+0xee/0x170
[ 5775.971016][   T73]      __sys_sendmsg+0xcd/0x170
[ 5775.971016][   T73]      do_syscall_64+0xc6/0x1e0
[ 5775.971016][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5775.971016][   T73] 
[ 5775.972733][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5775.972733][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5775.972733][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5775.972733][   T73]      ipv6_find_idev+0x102/0x170
[ 5775.972733][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5775.972733][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5775.972733][   T73]      netlink_rcv_skb+0x130/0x360
[ 5775.972733][   T73]      netlink_unicast+0x449/0x710
[ 5775.972733][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5775.972733][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5775.972733][   T73]      ___sys_sendmsg+0xee/0x170
[ 5775.972733][   T73]      __sys_sendmsg+0xcd/0x170
[ 5775.972733][   T73]      do_syscall_64+0xc6/0x1e0
[ 5775.972733][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5775.972733][   T73] 
[ 5786.175682][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5786.176174][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5786.176174][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5786.176174][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5786.176174][   T73]      fib6_nh_init+0xa22/0x1580
[ 5786.176174][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5786.176174][   T73]      ip6_route_add+0x1c/0x140
[ 5786.176174][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5786.176174][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5786.176174][   T73]      netlink_rcv_skb+0x130/0x360
[ 5786.176174][   T73]      netlink_unicast+0x449/0x710
[ 5786.176174][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5786.176174][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5786.176174][   T73]      ___sys_sendmsg+0xee/0x170
[ 5786.176174][   T73]      __sys_sendmsg+0xcd/0x170
[ 5786.176174][   T73]      do_syscall_64+0xc6/0x1e0
[ 5786.176174][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5786.176174][   T73] 
[ 5786.178137][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5786.178137][   T73]      dst_init+0x84/0x4a0
[ 5786.178137][   T73]      dst_alloc+0x97/0x150
[ 5786.178137][   T73]      ip6_dst_alloc+0x23/0x90
[ 5786.178137][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5786.178137][   T73]      ip6_pol_route+0x56f/0x840
[ 5786.178137][   T73]      fib6_rule_lookup+0x456/0x630
[ 5786.178137][   T73]      ip6_route_input+0x59c/0xa50
[ 5786.178137][   T73]      ipv6_rcv+0x397/0x810
[ 5786.178137][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5786.178137][   T73]      process_backlog+0x101/0x620
[ 5786.178137][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5786.178137][   T73]      net_rx_action+0x495/0xbe0
[ 5786.178137][   T73]      __do_softirq+0x1b5/0x7f6
[ 5786.178137][   T73] 
[ 5786.179834][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5786.179834][   T73]      netdev_get_by_index+0x5e/0x80
[ 5786.179834][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5786.179834][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5786.179834][   T73]      ip6_route_add+0x1c/0x140
[ 5786.179834][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5786.179834][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5786.179834][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5786.179834][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5786.179834][   T73]      netlink_rcv_skb+0x130/0x360
[ 5786.179834][   T73]      netlink_unicast+0x449/0x710
[ 5786.179834][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5786.179834][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5786.179834][   T73]      ___sys_sendmsg+0xee/0x170
[ 5786.179834][   T73]      __sys_sendmsg+0xcd/0x170
[ 5786.179834][   T73]      do_syscall_64+0xc6/0x1e0
[ 5786.179834][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5786.179834][   T73] 
[ 5786.181871][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5786.181871][   T73]      netdev_get_by_index+0x5e/0x80
[ 5786.181871][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5786.181871][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5786.181871][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5786.181871][   T73]      ipv6_add_addr+0x411/0x2000
[ 5786.181871][   T73]      inet6_addr_add+0x30e/0xa40
[ 5786.181871][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5786.181871][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5786.181871][   T73]      netlink_rcv_skb+0x130/0x360
[ 5786.181871][   T73]      netlink_unicast+0x449/0x710
[ 5786.181871][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5786.181871][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5786.181871][   T73]      ___sys_sendmsg+0xee/0x170
[ 5786.181871][   T73]      __sys_sendmsg+0xcd/0x170
[ 5786.181871][   T73]      do_syscall_64+0xc6/0x1e0
[ 5786.181871][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5786.181871][   T73] 
[ 5786.183925][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5786.183925][   T73]      netdev_get_by_index+0x5e/0x80
[ 5786.183925][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5786.183925][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5786.183925][   T73]      ip6_route_add+0x1c/0x140
[ 5786.183925][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5786.183925][   T73]      addrconf_add_dev+0xe2/0x170
[ 5786.183925][   T73]      inet6_addr_add+0x12f/0xa40
[ 5786.183925][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5786.183925][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5786.183925][   T73]      netlink_rcv_skb+0x130/0x360
[ 5786.183925][   T73]      netlink_unicast+0x449/0x710
[ 5786.183925][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5786.183925][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5786.183925][   T73]      ___sys_sendmsg+0xee/0x170
[ 5786.183925][   T73]      __sys_sendmsg+0xcd/0x170
[ 5786.183925][   T73]      do_syscall_64+0xc6/0x1e0
[ 5786.183925][   T73] 
[ 5786.185944][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5786.185944][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5786.185944][   T73]      ipv6_find_idev+0x102/0x170
[ 5786.185944][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5786.185944][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5786.185944][   T73]      netlink_rcv_skb+0x130/0x360
[ 5786.185944][   T73]      netlink_unicast+0x449/0x710
[ 5786.185944][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5786.185944][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5786.185944][   T73]      ___sys_sendmsg+0xee/0x170
[ 5786.185944][   T73]      __sys_sendmsg+0xcd/0x170
[ 5786.185944][   T73]      do_syscall_64+0xc6/0x1e0
[ 5786.185944][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5786.185944][   T73] 
[ 5786.187514][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5786.187514][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5786.187514][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5786.187514][   T73]      ipv6_find_idev+0x102/0x170
[ 5786.187514][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5786.187514][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5786.187514][   T73]      netlink_rcv_skb+0x130/0x360
[ 5786.187514][   T73]      netlink_unicast+0x449/0x710
[ 5786.187514][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5786.187514][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5786.187514][   T73]      ___sys_sendmsg+0xee/0x170
[ 5786.187514][   T73]      __sys_sendmsg+0xcd/0x170
[ 5786.187514][   T73]      do_syscall_64+0xc6/0x1e0
[ 5786.187514][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5786.187514][   T73] 
[ 5786.189238][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5786.189525][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5786.189525][   T73]      netdev_get_by_index+0x5e/0x80
[ 5786.189525][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5786.189525][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5786.189525][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5786.189525][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5786.189525][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5786.189525][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5786.189525][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5786.189525][   T73]      addrconf_dad_begin+0x310/0x670
[ 5786.189525][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5786.189525][   T73]      process_one_work+0x84d/0x18a0
[ 5786.189525][   T73]      worker_thread+0x587/0xd30
[ 5786.189525][   T73]      kthread+0x28a/0x350
[ 5786.189525][   T73]      ret_from_fork+0x31/0x70
[ 5786.189525][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5786.189525][   T73] 
[ 5786.191467][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5786.191467][   T73]      netdev_get_by_index+0x5e/0x80
[ 5786.191467][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5786.191467][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5786.191467][   T73]      ip6_route_add+0x1c/0x140
[ 5786.191467][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5786.191467][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5786.191467][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5786.191467][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5786.191467][   T73]      netlink_rcv_skb+0x130/0x360
[ 5786.191467][   T73]      netlink_unicast+0x449/0x710
[ 5786.191467][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5786.191467][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5786.191467][   T73]      ___sys_sendmsg+0xee/0x170
[ 5786.191467][   T73]      __sys_sendmsg+0xcd/0x170
[ 5786.191467][   T73]      do_syscall_64+0xc6/0x1e0
[ 5786.191467][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5786.191467][   T73] 
[ 5786.193487][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5786.193487][   T73]      netdev_get_by_index+0x5e/0x80
[ 5786.193487][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5786.193487][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5786.193487][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5786.193487][   T73]      ipv6_add_addr+0x411/0x2000
[ 5786.193487][   T73]      inet6_addr_add+0x30e/0xa40
[ 5786.193487][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5786.193487][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5786.193487][   T73]      netlink_rcv_skb+0x130/0x360
[ 5786.193487][   T73]      netlink_unicast+0x449/0x710
[ 5786.193487][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5786.193487][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5786.193487][   T73]      ___sys_sendmsg+0xee/0x170
[ 5786.193487][   T73]      __sys_sendmsg+0xcd/0x170
[ 5786.193487][   T73]      do_syscall_64+0xc6/0x1e0
[ 5786.193487][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5786.193487][   T73] 
[ 5786.195504][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5786.195504][   T73]      netdev_get_by_index+0x5e/0x80
[ 5786.195504][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5786.195504][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5786.195504][   T73]      ip6_route_add+0x1c/0x140
[ 5786.195504][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5786.195504][   T73]      addrconf_add_dev+0xe2/0x170
[ 5786.195504][   T73]      inet6_addr_add+0x12f/0xa40
[ 5786.195504][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5786.195504][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5786.195504][   T73]      netlink_rcv_skb+0x130/0x360
[ 5786.195504][   T73]      netlink_unicast+0x449/0x710
[ 5786.195504][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5786.195504][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5786.195504][   T73]      ___sys_sendmsg+0xee/0x170
[ 5786.195504][   T73]      __sys_sendmsg+0xcd/0x170
[ 5786.195504][   T73]      do_syscall_64+0xc6/0x1e0
[ 5786.195504][   T73] 
[ 5786.197498][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5786.197498][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5786.197498][   T73]      ipv6_find_idev+0x102/0x170
[ 5786.197498][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5786.197498][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5786.197498][   T73]      netlink_rcv_skb+0x130/0x360
[ 5786.197498][   T73]      netlink_unicast+0x449/0x710
[ 5786.197498][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5786.197498][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5786.197498][   T73]      ___sys_sendmsg+0xee/0x170
[ 5786.197498][   T73]      __sys_sendmsg+0xcd/0x170
[ 5786.197498][   T73]      do_syscall_64+0xc6/0x1e0
[ 5786.197498][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5786.197498][   T73] 
[ 5786.199051][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5786.199051][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5786.199051][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5786.199051][   T73]      ipv6_find_idev+0x102/0x170
[ 5786.199051][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5786.199051][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5786.199051][   T73]      netlink_rcv_skb+0x130/0x360
[ 5786.199051][   T73]      netlink_unicast+0x449/0x710
[ 5786.199051][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5786.199051][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5786.199051][   T73]      ___sys_sendmsg+0xee/0x170
[ 5786.199051][   T73]      __sys_sendmsg+0xcd/0x170
[ 5786.199051][   T73]      do_syscall_64+0xc6/0x1e0
[ 5786.199051][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5786.199051][   T73] 
[ 5786.200770][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5786.201053][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5786.201053][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5786.201053][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5786.201053][   T73]      fib6_nh_init+0xa22/0x1580
[ 5786.201053][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5786.201053][   T73]      ip6_route_add+0x1c/0x140
[ 5786.201053][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5786.201053][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5786.201053][   T73]      netlink_rcv_skb+0x130/0x360
[ 5786.201053][   T73]      netlink_unicast+0x449/0x710
[ 5786.201053][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5786.201053][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5786.201053][   T73]      ___sys_sendmsg+0xee/0x170
[ 5786.201053][   T73]      __sys_sendmsg+0xcd/0x170
[ 5786.201053][   T73]      do_syscall_64+0xc6/0x1e0
[ 5786.201053][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5786.201053][   T73] 
[ 5786.203168][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5786.203168][   T73]      dst_init+0x84/0x4a0
[ 5786.203168][   T73]      dst_alloc+0x97/0x150
[ 5786.203168][   T73]      ip6_dst_alloc+0x23/0x90
[ 5786.203168][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5786.203168][   T73]      ip6_pol_route+0x56f/0x840
[ 5786.203168][   T73]      fib6_rule_lookup+0x456/0x630
[ 5786.203168][   T73]      ip6_route_input+0x59c/0xa50
[ 5786.203168][   T73]      ipv6_rcv+0x397/0x810
[ 5786.203168][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5786.203168][   T73]      process_backlog+0x101/0x620
[ 5786.203168][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5786.203168][   T73]      net_rx_action+0x495/0xbe0
[ 5786.203168][   T73]      __do_softirq+0x1b5/0x7f6
[ 5786.203168][   T73] 
[ 5786.205103][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5786.205103][   T73]      netdev_get_by_index+0x5e/0x80
[ 5786.205103][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5786.205103][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5786.205103][   T73]      ip6_route_add+0x1c/0x140
[ 5786.205103][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5786.205103][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5786.205103][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5786.205103][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5786.205103][   T73]      netlink_rcv_skb+0x130/0x360
[ 5786.205103][   T73]      netlink_unicast+0x449/0x710
[ 5786.205103][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5786.205103][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5786.205103][   T73]      ___sys_sendmsg+0xee/0x170
[ 5786.205103][   T73]      __sys_sendmsg+0xcd/0x170
[ 5786.205103][   T73]      do_syscall_64+0xc6/0x1e0
[ 5786.205103][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5786.205103][   T73] 
[ 5786.207938][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5786.207938][   T73]      netdev_get_by_index+0x5e/0x80
[ 5786.207938][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5786.207938][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5786.207938][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5786.207938][   T73]      ipv6_add_addr+0x411/0x2000
[ 5786.207938][   T73]      inet6_addr_add+0x30e/0xa40
[ 5786.207938][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5786.207938][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5786.207938][   T73]      netlink_rcv_skb+0x130/0x360
[ 5786.207938][   T73]      netlink_unicast+0x449/0x710
[ 5786.207938][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5786.207938][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5786.207938][   T73]      ___sys_sendmsg+0xee/0x170
[ 5786.207938][   T73]      __sys_sendmsg+0xcd/0x170
[ 5786.207938][   T73]      do_syscall_64+0xc6/0x1e0
[ 5786.207938][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5786.207938][   T73] 
[ 5786.210201][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5786.210201][   T73]      netdev_get_by_index+0x5e/0x80
[ 5786.210201][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5786.210201][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5786.210201][   T73]      ip6_route_add+0x1c/0x140
[ 5786.210201][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5786.210201][   T73]      addrconf_add_dev+0xe2/0x170
[ 5786.210201][   T73]      inet6_addr_add+0x12f/0xa40
[ 5786.210201][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5786.210201][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5786.210201][   T73]      netlink_rcv_skb+0x130/0x360
[ 5786.210201][   T73]      netlink_unicast+0x449/0x710
[ 5786.210201][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5786.210201][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5786.210201][   T73]      ___sys_sendmsg+0xee/0x170
[ 5786.210201][   T73]      __sys_sendmsg+0xcd/0x170
[ 5786.210201][   T73]      do_syscall_64+0xc6/0x1e0
[ 5786.210201][   T73] 
[ 5786.212325][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5786.212325][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5786.212325][   T73]      ipv6_find_idev+0x102/0x170
[ 5786.212325][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5786.212325][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5786.212325][   T73]      netlink_rcv_skb+0x130/0x360
[ 5786.212325][   T73]      netlink_unicast+0x449/0x710
[ 5786.212325][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5786.212325][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5786.212325][   T73]      ___sys_sendmsg+0xee/0x170
[ 5786.212325][   T73]      __sys_sendmsg+0xcd/0x170
[ 5786.212325][   T73]      do_syscall_64+0xc6/0x1e0
[ 5786.212325][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5786.212325][   T73] 
[ 5786.214124][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5786.214124][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5786.214124][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5786.214124][   T73]      ipv6_find_idev+0x102/0x170
[ 5786.214124][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5786.214124][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5786.214124][   T73]      netlink_rcv_skb+0x130/0x360
[ 5786.214124][   T73]      netlink_unicast+0x449/0x710
[ 5786.214124][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5786.214124][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5786.214124][   T73]      ___sys_sendmsg+0xee/0x170
[ 5786.214124][   T73]      __sys_sendmsg+0xcd/0x170
[ 5786.214124][   T73]      do_syscall_64+0xc6/0x1e0
[ 5786.214124][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5786.214124][   T73] 
[ 5786.216085][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5786.216362][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5786.216362][   T73]      netdev_get_by_index+0x5e/0x80
[ 5786.216362][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5786.216362][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5786.216362][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5786.216362][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5786.216362][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5786.216362][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5786.216362][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5786.216362][   T73]      addrconf_dad_begin+0x310/0x670
[ 5786.216362][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5786.216362][   T73]      process_one_work+0x84d/0x18a0
[ 5786.216362][   T73]      worker_thread+0x587/0xd30
[ 5786.216362][   T73]      kthread+0x28a/0x350
[ 5786.216362][   T73]      ret_from_fork+0x31/0x70
[ 5786.216362][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5786.216362][   T73] 
[ 5786.218668][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5786.218668][   T73]      netdev_get_by_index+0x5e/0x80
[ 5786.218668][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5786.218668][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5786.218668][   T73]      ip6_route_add+0x1c/0x140
[ 5786.218668][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5786.218668][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5786.218668][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5786.218668][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5786.218668][   T73]      netlink_rcv_skb+0x130/0x360
[ 5786.218668][   T73]      netlink_unicast+0x449/0x710
[ 5786.218668][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5786.218668][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5786.218668][   T73]      ___sys_sendmsg+0xee/0x170
[ 5786.218668][   T73]      __sys_sendmsg+0xcd/0x170
[ 5786.218668][   T73]      do_syscall_64+0xc6/0x1e0
[ 5786.218668][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5786.218668][   T73] 
[ 5786.220945][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5786.220945][   T73]      netdev_get_by_index+0x5e/0x80
[ 5786.220945][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5786.220945][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5786.220945][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5786.220945][   T73]      ipv6_add_addr+0x411/0x2000
[ 5786.220945][   T73]      inet6_addr_add+0x30e/0xa40
[ 5786.220945][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5786.220945][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5786.220945][   T73]      netlink_rcv_skb+0x130/0x360
[ 5786.220945][   T73]      netlink_unicast+0x449/0x710
[ 5786.220945][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5786.220945][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5786.220945][   T73]      ___sys_sendmsg+0xee/0x170
[ 5786.220945][   T73]      __sys_sendmsg+0xcd/0x170
[ 5786.220945][   T73]      do_syscall_64+0xc6/0x1e0
[ 5786.220945][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5786.220945][   T73] 
[ 5786.223132][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5786.223132][   T73]      netdev_get_by_index+0x5e/0x80
[ 5786.223132][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5786.223132][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5786.223132][   T73]      ip6_route_add+0x1c/0x140
[ 5786.223132][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5786.223132][   T73]      addrconf_add_dev+0xe2/0x170
[ 5786.223132][   T73]      inet6_addr_add+0x12f/0xa40
[ 5786.223132][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5786.223132][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5786.223132][   T73]      netlink_rcv_skb+0x130/0x360
[ 5786.223132][   T73]      netlink_unicast+0x449/0x710
[ 5786.223132][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5786.223132][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5786.223132][   T73]      ___sys_sendmsg+0xee/0x170
[ 5786.223132][   T73]      __sys_sendmsg+0xcd/0x170
[ 5786.223132][   T73]      do_syscall_64+0xc6/0x1e0
[ 5786.223132][   T73] 
[ 5786.225416][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5786.225416][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5786.225416][   T73]      ipv6_find_idev+0x102/0x170
[ 5786.225416][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5786.225416][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5786.225416][   T73]      netlink_rcv_skb+0x130/0x360
[ 5786.225416][   T73]      netlink_unicast+0x449/0x710
[ 5786.225416][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5786.225416][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5786.225416][   T73]      ___sys_sendmsg+0xee/0x170
[ 5786.225416][   T73]      __sys_sendmsg+0xcd/0x170
[ 5786.225416][   T73]      do_syscall_64+0xc6/0x1e0
[ 5786.225416][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5786.225416][   T73] 
[ 5786.227171][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5786.227171][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5786.227171][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5786.227171][   T73]      ipv6_find_idev+0x102/0x170
[ 5786.227171][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5786.227171][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5786.227171][   T73]      netlink_rcv_skb+0x130/0x360
[ 5786.227171][   T73]      netlink_unicast+0x449/0x710
[ 5786.227171][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5786.227171][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5786.227171][   T73]      ___sys_sendmsg+0xee/0x170
[ 5786.227171][   T73]      __sys_sendmsg+0xcd/0x170
[ 5786.227171][   T73]      do_syscall_64+0xc6/0x1e0
[ 5786.227171][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5786.227171][   T73] 
[ 5796.471683][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5796.472127][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5796.472127][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5796.472127][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5796.472127][   T73]      fib6_nh_init+0xa22/0x1580
[ 5796.472127][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5796.472127][   T73]      ip6_route_add+0x1c/0x140
[ 5796.472127][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5796.472127][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5796.472127][   T73]      netlink_rcv_skb+0x130/0x360
[ 5796.472127][   T73]      netlink_unicast+0x449/0x710
[ 5796.472127][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5796.472127][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5796.472127][   T73]      ___sys_sendmsg+0xee/0x170
[ 5796.472127][   T73]      __sys_sendmsg+0xcd/0x170
[ 5796.472127][   T73]      do_syscall_64+0xc6/0x1e0
[ 5796.472127][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5796.472127][   T73] 
[ 5796.474037][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5796.474037][   T73]      dst_init+0x84/0x4a0
[ 5796.474037][   T73]      dst_alloc+0x97/0x150
[ 5796.474037][   T73]      ip6_dst_alloc+0x23/0x90
[ 5796.474037][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5796.474037][   T73]      ip6_pol_route+0x56f/0x840
[ 5796.474037][   T73]      fib6_rule_lookup+0x456/0x630
[ 5796.474037][   T73]      ip6_route_input+0x59c/0xa50
[ 5796.474037][   T73]      ipv6_rcv+0x397/0x810
[ 5796.474037][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5796.474037][   T73]      process_backlog+0x101/0x620
[ 5796.474037][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5796.474037][   T73]      net_rx_action+0x495/0xbe0
[ 5796.474037][   T73]      __do_softirq+0x1b5/0x7f6
[ 5796.474037][   T73] 
[ 5796.475720][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5796.475720][   T73]      netdev_get_by_index+0x5e/0x80
[ 5796.475720][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5796.475720][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5796.475720][   T73]      ip6_route_add+0x1c/0x140
[ 5796.475720][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5796.475720][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5796.475720][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5796.475720][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5796.475720][   T73]      netlink_rcv_skb+0x130/0x360
[ 5796.475720][   T73]      netlink_unicast+0x449/0x710
[ 5796.475720][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5796.475720][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5796.475720][   T73]      ___sys_sendmsg+0xee/0x170
[ 5796.475720][   T73]      __sys_sendmsg+0xcd/0x170
[ 5796.475720][   T73]      do_syscall_64+0xc6/0x1e0
[ 5796.475720][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5796.475720][   T73] 
[ 5796.477764][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5796.477764][   T73]      netdev_get_by_index+0x5e/0x80
[ 5796.477764][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5796.477764][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5796.477764][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5796.477764][   T73]      ipv6_add_addr+0x411/0x2000
[ 5796.477764][   T73]      inet6_addr_add+0x30e/0xa40
[ 5796.477764][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5796.477764][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5796.477764][   T73]      netlink_rcv_skb+0x130/0x360
[ 5796.477764][   T73]      netlink_unicast+0x449/0x710
[ 5796.477764][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5796.477764][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5796.477764][   T73]      ___sys_sendmsg+0xee/0x170
[ 5796.477764][   T73]      __sys_sendmsg+0xcd/0x170
[ 5796.477764][   T73]      do_syscall_64+0xc6/0x1e0
[ 5796.477764][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5796.477764][   T73] 
[ 5796.479807][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5796.479807][   T73]      netdev_get_by_index+0x5e/0x80
[ 5796.479807][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5796.479807][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5796.479807][   T73]      ip6_route_add+0x1c/0x140
[ 5796.479807][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5796.479807][   T73]      addrconf_add_dev+0xe2/0x170
[ 5796.479807][   T73]      inet6_addr_add+0x12f/0xa40
[ 5796.479807][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5796.479807][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5796.479807][   T73]      netlink_rcv_skb+0x130/0x360
[ 5796.479807][   T73]      netlink_unicast+0x449/0x710
[ 5796.479807][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5796.479807][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5796.479807][   T73]      ___sys_sendmsg+0xee/0x170
[ 5796.479807][   T73]      __sys_sendmsg+0xcd/0x170
[ 5796.479807][   T73]      do_syscall_64+0xc6/0x1e0
[ 5796.479807][   T73] 
[ 5796.481792][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5796.481792][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5796.481792][   T73]      ipv6_find_idev+0x102/0x170
[ 5796.481792][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5796.481792][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5796.481792][   T73]      netlink_rcv_skb+0x130/0x360
[ 5796.481792][   T73]      netlink_unicast+0x449/0x710
[ 5796.481792][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5796.481792][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5796.481792][   T73]      ___sys_sendmsg+0xee/0x170
[ 5796.481792][   T73]      __sys_sendmsg+0xcd/0x170
[ 5796.481792][   T73]      do_syscall_64+0xc6/0x1e0
[ 5796.481792][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5796.481792][   T73] 
[ 5796.483347][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5796.483347][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5796.483347][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5796.483347][   T73]      ipv6_find_idev+0x102/0x170
[ 5796.483347][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5796.483347][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5796.483347][   T73]      netlink_rcv_skb+0x130/0x360
[ 5796.483347][   T73]      netlink_unicast+0x449/0x710
[ 5796.483347][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5796.483347][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5796.483347][   T73]      ___sys_sendmsg+0xee/0x170
[ 5796.483347][   T73]      __sys_sendmsg+0xcd/0x170
[ 5796.483347][   T73]      do_syscall_64+0xc6/0x1e0
[ 5796.483347][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5796.483347][   T73] 
[ 5796.485046][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5796.485327][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5796.485327][   T73]      netdev_get_by_index+0x5e/0x80
[ 5796.485327][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5796.485327][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5796.485327][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5796.485327][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5796.485327][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5796.485327][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5796.485327][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5796.485327][   T73]      addrconf_dad_begin+0x310/0x670
[ 5796.485327][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5796.485327][   T73]      process_one_work+0x84d/0x18a0
[ 5796.485327][   T73]      worker_thread+0x587/0xd30
[ 5796.485327][   T73]      kthread+0x28a/0x350
[ 5796.485327][   T73]      ret_from_fork+0x31/0x70
[ 5796.485327][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5796.485327][   T73] 
[ 5796.487262][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5796.487262][   T73]      netdev_get_by_index+0x5e/0x80
[ 5796.487262][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5796.487262][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5796.487262][   T73]      ip6_route_add+0x1c/0x140
[ 5796.487262][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5796.487262][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5796.487262][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5796.487262][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5796.487262][   T73]      netlink_rcv_skb+0x130/0x360
[ 5796.487262][   T73]      netlink_unicast+0x449/0x710
[ 5796.487262][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5796.487262][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5796.487262][   T73]      ___sys_sendmsg+0xee/0x170
[ 5796.487262][   T73]      __sys_sendmsg+0xcd/0x170
[ 5796.487262][   T73]      do_syscall_64+0xc6/0x1e0
[ 5796.487262][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5796.487262][   T73] 
[ 5796.489292][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5796.489292][   T73]      netdev_get_by_index+0x5e/0x80
[ 5796.489292][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5796.489292][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5796.489292][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5796.489292][   T73]      ipv6_add_addr+0x411/0x2000
[ 5796.489292][   T73]      inet6_addr_add+0x30e/0xa40
[ 5796.489292][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5796.489292][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5796.489292][   T73]      netlink_rcv_skb+0x130/0x360
[ 5796.489292][   T73]      netlink_unicast+0x449/0x710
[ 5796.489292][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5796.489292][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5796.489292][   T73]      ___sys_sendmsg+0xee/0x170
[ 5796.489292][   T73]      __sys_sendmsg+0xcd/0x170
[ 5796.489292][   T73]      do_syscall_64+0xc6/0x1e0
[ 5796.489292][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5796.489292][   T73] 
[ 5796.491317][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5796.491317][   T73]      netdev_get_by_index+0x5e/0x80
[ 5796.491317][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5796.491317][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5796.491317][   T73]      ip6_route_add+0x1c/0x140
[ 5796.491317][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5796.491317][   T73]      addrconf_add_dev+0xe2/0x170
[ 5796.491317][   T73]      inet6_addr_add+0x12f/0xa40
[ 5796.491317][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5796.491317][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5796.491317][   T73]      netlink_rcv_skb+0x130/0x360
[ 5796.491317][   T73]      netlink_unicast+0x449/0x710
[ 5796.491317][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5796.491317][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5796.491317][   T73]      ___sys_sendmsg+0xee/0x170
[ 5796.491317][   T73]      __sys_sendmsg+0xcd/0x170
[ 5796.491317][   T73]      do_syscall_64+0xc6/0x1e0
[ 5796.491317][   T73] 
[ 5796.493302][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5796.493302][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5796.493302][   T73]      ipv6_find_idev+0x102/0x170
[ 5796.493302][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5796.493302][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5796.493302][   T73]      netlink_rcv_skb+0x130/0x360
[ 5796.493302][   T73]      netlink_unicast+0x449/0x710
[ 5796.493302][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5796.493302][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5796.493302][   T73]      ___sys_sendmsg+0xee/0x170
[ 5796.493302][   T73]      __sys_sendmsg+0xcd/0x170
[ 5796.493302][   T73]      do_syscall_64+0xc6/0x1e0
[ 5796.493302][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5796.493302][   T73] 
[ 5796.494855][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5796.494855][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5796.494855][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5796.494855][   T73]      ipv6_find_idev+0x102/0x170
[ 5796.494855][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5796.494855][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5796.494855][   T73]      netlink_rcv_skb+0x130/0x360
[ 5796.494855][   T73]      netlink_unicast+0x449/0x710
[ 5796.494855][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5796.494855][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5796.494855][   T73]      ___sys_sendmsg+0xee/0x170
[ 5796.494855][   T73]      __sys_sendmsg+0xcd/0x170
[ 5796.494855][   T73]      do_syscall_64+0xc6/0x1e0
[ 5796.494855][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5796.494855][   T73] 
[ 5796.496574][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5796.496867][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5796.496867][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5796.496867][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5796.496867][   T73]      fib6_nh_init+0xa22/0x1580
[ 5796.496867][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5796.496867][   T73]      ip6_route_add+0x1c/0x140
[ 5796.496867][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5796.496867][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5796.496867][   T73]      netlink_rcv_skb+0x130/0x360
[ 5796.496867][   T73]      netlink_unicast+0x449/0x710
[ 5796.496867][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5796.496867][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5796.496867][   T73]      ___sys_sendmsg+0xee/0x170
[ 5796.496867][   T73]      __sys_sendmsg+0xcd/0x170
[ 5796.496867][   T73]      do_syscall_64+0xc6/0x1e0
[ 5796.496867][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5796.496867][   T73] 
[ 5796.498969][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5796.498969][   T73]      dst_init+0x84/0x4a0
[ 5796.498969][   T73]      dst_alloc+0x97/0x150
[ 5796.498969][   T73]      ip6_dst_alloc+0x23/0x90
[ 5796.498969][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5796.498969][   T73]      ip6_pol_route+0x56f/0x840
[ 5796.498969][   T73]      fib6_rule_lookup+0x456/0x630
[ 5796.498969][   T73]      ip6_route_input+0x59c/0xa50
[ 5796.498969][   T73]      ipv6_rcv+0x397/0x810
[ 5796.498969][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5796.498969][   T73]      process_backlog+0x101/0x620
[ 5796.498969][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5796.498969][   T73]      net_rx_action+0x495/0xbe0
[ 5796.498969][   T73]      __do_softirq+0x1b5/0x7f6
[ 5796.498969][   T73] 
[ 5796.500812][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5796.500812][   T73]      netdev_get_by_index+0x5e/0x80
[ 5796.500812][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5796.500812][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5796.500812][   T73]      ip6_route_add+0x1c/0x140
[ 5796.500812][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5796.500812][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5796.500812][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5796.500812][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5796.500812][   T73]      netlink_rcv_skb+0x130/0x360
[ 5796.500812][   T73]      netlink_unicast+0x449/0x710
[ 5796.500812][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5796.500812][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5796.500812][   T73]      ___sys_sendmsg+0xee/0x170
[ 5796.500812][   T73]      __sys_sendmsg+0xcd/0x170
[ 5796.500812][   T73]      do_syscall_64+0xc6/0x1e0
[ 5796.500812][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5796.500812][   T73] 
[ 5796.503087][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5796.503087][   T73]      netdev_get_by_index+0x5e/0x80
[ 5796.503087][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5796.503087][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5796.503087][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5796.503087][   T73]      ipv6_add_addr+0x411/0x2000
[ 5796.503087][   T73]      inet6_addr_add+0x30e/0xa40
[ 5796.503087][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5796.503087][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5796.503087][   T73]      netlink_rcv_skb+0x130/0x360
[ 5796.503087][   T73]      netlink_unicast+0x449/0x710
[ 5796.503087][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5796.503087][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5796.503087][   T73]      ___sys_sendmsg+0xee/0x170
[ 5796.503087][   T73]      __sys_sendmsg+0xcd/0x170
[ 5796.503087][   T73]      do_syscall_64+0xc6/0x1e0
[ 5796.503087][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5796.503087][   T73] 
[ 5796.505415][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5796.505415][   T73]      netdev_get_by_index+0x5e/0x80
[ 5796.505415][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5796.505415][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5796.505415][   T73]      ip6_route_add+0x1c/0x140
[ 5796.505415][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5796.505415][   T73]      addrconf_add_dev+0xe2/0x170
[ 5796.505415][   T73]      inet6_addr_add+0x12f/0xa40
[ 5796.505415][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5796.505415][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5796.505415][   T73]      netlink_rcv_skb+0x130/0x360
[ 5796.505415][   T73]      netlink_unicast+0x449/0x710
[ 5796.505415][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5796.505415][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5796.505415][   T73]      ___sys_sendmsg+0xee/0x170
[ 5796.505415][   T73]      __sys_sendmsg+0xcd/0x170
[ 5796.505415][   T73]      do_syscall_64+0xc6/0x1e0
[ 5796.505415][   T73] 
[ 5796.507580][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5796.507580][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5796.507580][   T73]      ipv6_find_idev+0x102/0x170
[ 5796.507580][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5796.507580][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5796.507580][   T73]      netlink_rcv_skb+0x130/0x360
[ 5796.507580][   T73]      netlink_unicast+0x449/0x710
[ 5796.507580][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5796.507580][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5796.507580][   T73]      ___sys_sendmsg+0xee/0x170
[ 5796.507580][   T73]      __sys_sendmsg+0xcd/0x170
[ 5796.507580][   T73]      do_syscall_64+0xc6/0x1e0
[ 5796.507580][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5796.507580][   T73] 
[ 5796.509316][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5796.509316][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5796.509316][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5796.509316][   T73]      ipv6_find_idev+0x102/0x170
[ 5796.509316][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5796.509316][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5796.509316][   T73]      netlink_rcv_skb+0x130/0x360
[ 5796.509316][   T73]      netlink_unicast+0x449/0x710
[ 5796.509316][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5796.509316][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5796.509316][   T73]      ___sys_sendmsg+0xee/0x170
[ 5796.509316][   T73]      __sys_sendmsg+0xcd/0x170
[ 5796.509316][   T73]      do_syscall_64+0xc6/0x1e0
[ 5796.509316][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5796.509316][   T73] 
[ 5796.511266][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5796.511550][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5796.511550][   T73]      netdev_get_by_index+0x5e/0x80
[ 5796.511550][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5796.511550][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5796.511550][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5796.511550][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5796.511550][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5796.511550][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5796.511550][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5796.511550][   T73]      addrconf_dad_begin+0x310/0x670
[ 5796.511550][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5796.511550][   T73]      process_one_work+0x84d/0x18a0
[ 5796.511550][   T73]      worker_thread+0x587/0xd30
[ 5796.511550][   T73]      kthread+0x28a/0x350
[ 5796.511550][   T73]      ret_from_fork+0x31/0x70
[ 5796.511550][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5796.511550][   T73] 
[ 5796.513723][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5796.513723][   T73]      netdev_get_by_index+0x5e/0x80
[ 5796.513723][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5796.513723][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5796.513723][   T73]      ip6_route_add+0x1c/0x140
[ 5796.513723][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5796.513723][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5796.513723][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5796.513723][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5796.513723][   T73]      netlink_rcv_skb+0x130/0x360
[ 5796.513723][   T73]      netlink_unicast+0x449/0x710
[ 5796.513723][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5796.513723][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5796.513723][   T73]      ___sys_sendmsg+0xee/0x170
[ 5796.513723][   T73]      __sys_sendmsg+0xcd/0x170
[ 5796.513723][   T73]      do_syscall_64+0xc6/0x1e0
[ 5796.513723][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5796.513723][   T73] 
[ 5796.516049][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5796.516049][   T73]      netdev_get_by_index+0x5e/0x80
[ 5796.516049][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5796.516049][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5796.516049][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5796.516049][   T73]      ipv6_add_addr+0x411/0x2000
[ 5796.516049][   T73]      inet6_addr_add+0x30e/0xa40
[ 5796.516049][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5796.516049][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5796.516049][   T73]      netlink_rcv_skb+0x130/0x360
[ 5796.516049][   T73]      netlink_unicast+0x449/0x710
[ 5796.516049][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5796.516049][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5796.516049][   T73]      ___sys_sendmsg+0xee/0x170
[ 5796.516049][   T73]      __sys_sendmsg+0xcd/0x170
[ 5796.516049][   T73]      do_syscall_64+0xc6/0x1e0
[ 5796.516049][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5796.516049][   T73] 
[ 5796.518245][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5796.518245][   T73]      netdev_get_by_index+0x5e/0x80
[ 5796.518245][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5796.518245][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5796.518245][   T73]      ip6_route_add+0x1c/0x140
[ 5796.518245][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5796.518245][   T73]      addrconf_add_dev+0xe2/0x170
[ 5796.518245][   T73]      inet6_addr_add+0x12f/0xa40
[ 5796.518245][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5796.518245][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5796.518245][   T73]      netlink_rcv_skb+0x130/0x360
[ 5796.518245][   T73]      netlink_unicast+0x449/0x710
[ 5796.518245][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5796.518245][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5796.518245][   T73]      ___sys_sendmsg+0xee/0x170
[ 5796.518245][   T73]      __sys_sendmsg+0xcd/0x170
[ 5796.518245][   T73]      do_syscall_64+0xc6/0x1e0
[ 5796.518245][   T73] 
[ 5796.520476][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5796.520476][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5796.520476][   T73]      ipv6_find_idev+0x102/0x170
[ 5796.520476][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5796.520476][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5796.520476][   T73]      netlink_rcv_skb+0x130/0x360
[ 5796.520476][   T73]      netlink_unicast+0x449/0x710
[ 5796.520476][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5796.520476][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5796.520476][   T73]      ___sys_sendmsg+0xee/0x170
[ 5796.520476][   T73]      __sys_sendmsg+0xcd/0x170
[ 5796.520476][   T73]      do_syscall_64+0xc6/0x1e0
[ 5796.520476][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5796.520476][   T73] 
[ 5796.522206][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5796.522206][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5796.522206][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5796.522206][   T73]      ipv6_find_idev+0x102/0x170
[ 5796.522206][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5796.522206][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5796.522206][   T73]      netlink_rcv_skb+0x130/0x360
[ 5796.522206][   T73]      netlink_unicast+0x449/0x710
[ 5796.522206][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5796.522206][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5796.522206][   T73]      ___sys_sendmsg+0xee/0x170
[ 5796.522206][   T73]      __sys_sendmsg+0xcd/0x170
[ 5796.522206][   T73]      do_syscall_64+0xc6/0x1e0
[ 5796.522206][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5796.522206][   T73] 
[ 5806.759877][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5806.760346][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5806.760346][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5806.760346][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5806.760346][   T73]      fib6_nh_init+0xa22/0x1580
[ 5806.760346][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5806.760346][   T73]      ip6_route_add+0x1c/0x140
[ 5806.760346][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5806.760346][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5806.760346][   T73]      netlink_rcv_skb+0x130/0x360
[ 5806.760346][   T73]      netlink_unicast+0x449/0x710
[ 5806.760346][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5806.760346][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5806.760346][   T73]      ___sys_sendmsg+0xee/0x170
[ 5806.760346][   T73]      __sys_sendmsg+0xcd/0x170
[ 5806.760346][   T73]      do_syscall_64+0xc6/0x1e0
[ 5806.760346][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5806.760346][   T73] 
[ 5806.762299][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5806.762299][   T73]      dst_init+0x84/0x4a0
[ 5806.762299][   T73]      dst_alloc+0x97/0x150
[ 5806.762299][   T73]      ip6_dst_alloc+0x23/0x90
[ 5806.762299][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5806.762299][   T73]      ip6_pol_route+0x56f/0x840
[ 5806.762299][   T73]      fib6_rule_lookup+0x456/0x630
[ 5806.762299][   T73]      ip6_route_input+0x59c/0xa50
[ 5806.762299][   T73]      ipv6_rcv+0x397/0x810
[ 5806.762299][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5806.762299][   T73]      process_backlog+0x101/0x620
[ 5806.762299][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5806.762299][   T73]      net_rx_action+0x495/0xbe0
[ 5806.762299][   T73]      __do_softirq+0x1b5/0x7f6
[ 5806.762299][   T73] 
[ 5806.763980][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5806.763980][   T73]      netdev_get_by_index+0x5e/0x80
[ 5806.763980][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5806.763980][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5806.763980][   T73]      ip6_route_add+0x1c/0x140
[ 5806.763980][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5806.763980][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5806.763980][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5806.763980][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5806.763980][   T73]      netlink_rcv_skb+0x130/0x360
[ 5806.763980][   T73]      netlink_unicast+0x449/0x710
[ 5806.763980][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5806.763980][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5806.763980][   T73]      ___sys_sendmsg+0xee/0x170
[ 5806.763980][   T73]      __sys_sendmsg+0xcd/0x170
[ 5806.763980][   T73]      do_syscall_64+0xc6/0x1e0
[ 5806.763980][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5806.763980][   T73] 
[ 5806.766031][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5806.766031][   T73]      netdev_get_by_index+0x5e/0x80
[ 5806.766031][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5806.766031][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5806.766031][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5806.766031][   T73]      ipv6_add_addr+0x411/0x2000
[ 5806.766031][   T73]      inet6_addr_add+0x30e/0xa40
[ 5806.766031][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5806.766031][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5806.766031][   T73]      netlink_rcv_skb+0x130/0x360
[ 5806.766031][   T73]      netlink_unicast+0x449/0x710
[ 5806.766031][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5806.766031][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5806.766031][   T73]      ___sys_sendmsg+0xee/0x170
[ 5806.766031][   T73]      __sys_sendmsg+0xcd/0x170
[ 5806.766031][   T73]      do_syscall_64+0xc6/0x1e0
[ 5806.766031][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5806.766031][   T73] 
[ 5806.768078][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5806.768078][   T73]      netdev_get_by_index+0x5e/0x80
[ 5806.768078][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5806.768078][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5806.768078][   T73]      ip6_route_add+0x1c/0x140
[ 5806.768078][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5806.768078][   T73]      addrconf_add_dev+0xe2/0x170
[ 5806.768078][   T73]      inet6_addr_add+0x12f/0xa40
[ 5806.768078][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5806.768078][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5806.768078][   T73]      netlink_rcv_skb+0x130/0x360
[ 5806.768078][   T73]      netlink_unicast+0x449/0x710
[ 5806.768078][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5806.768078][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5806.768078][   T73]      ___sys_sendmsg+0xee/0x170
[ 5806.768078][   T73]      __sys_sendmsg+0xcd/0x170
[ 5806.768078][   T73]      do_syscall_64+0xc6/0x1e0
[ 5806.768078][   T73] 
[ 5806.770087][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5806.770087][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5806.770087][   T73]      ipv6_find_idev+0x102/0x170
[ 5806.770087][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5806.770087][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5806.770087][   T73]      netlink_rcv_skb+0x130/0x360
[ 5806.770087][   T73]      netlink_unicast+0x449/0x710
[ 5806.770087][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5806.770087][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5806.770087][   T73]      ___sys_sendmsg+0xee/0x170
[ 5806.770087][   T73]      __sys_sendmsg+0xcd/0x170
[ 5806.770087][   T73]      do_syscall_64+0xc6/0x1e0
[ 5806.770087][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5806.770087][   T73] 
[ 5806.771656][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5806.771656][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5806.771656][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5806.771656][   T73]      ipv6_find_idev+0x102/0x170
[ 5806.771656][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5806.771656][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5806.771656][   T73]      netlink_rcv_skb+0x130/0x360
[ 5806.771656][   T73]      netlink_unicast+0x449/0x710
[ 5806.771656][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5806.771656][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5806.771656][   T73]      ___sys_sendmsg+0xee/0x170
[ 5806.771656][   T73]      __sys_sendmsg+0xcd/0x170
[ 5806.771656][   T73]      do_syscall_64+0xc6/0x1e0
[ 5806.771656][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5806.771656][   T73] 
[ 5806.773406][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5806.773698][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5806.773698][   T73]      netdev_get_by_index+0x5e/0x80
[ 5806.773698][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5806.773698][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5806.773698][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5806.773698][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5806.773698][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5806.773698][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5806.773698][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5806.773698][   T73]      addrconf_dad_begin+0x310/0x670
[ 5806.773698][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5806.773698][   T73]      process_one_work+0x84d/0x18a0
[ 5806.773698][   T73]      worker_thread+0x587/0xd30
[ 5806.773698][   T73]      kthread+0x28a/0x350
[ 5806.773698][   T73]      ret_from_fork+0x31/0x70
[ 5806.773698][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5806.773698][   T73] 
[ 5806.775650][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5806.775650][   T73]      netdev_get_by_index+0x5e/0x80
[ 5806.775650][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5806.775650][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5806.775650][   T73]      ip6_route_add+0x1c/0x140
[ 5806.775650][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5806.775650][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5806.775650][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5806.775650][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5806.775650][   T73]      netlink_rcv_skb+0x130/0x360
[ 5806.775650][   T73]      netlink_unicast+0x449/0x710
[ 5806.775650][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5806.775650][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5806.775650][   T73]      ___sys_sendmsg+0xee/0x170
[ 5806.775650][   T73]      __sys_sendmsg+0xcd/0x170
[ 5806.775650][   T73]      do_syscall_64+0xc6/0x1e0
[ 5806.775650][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5806.775650][   T73] 
[ 5806.777694][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5806.777694][   T73]      netdev_get_by_index+0x5e/0x80
[ 5806.777694][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5806.777694][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5806.777694][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5806.777694][   T73]      ipv6_add_addr+0x411/0x2000
[ 5806.777694][   T73]      inet6_addr_add+0x30e/0xa40
[ 5806.777694][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5806.777694][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5806.777694][   T73]      netlink_rcv_skb+0x130/0x360
[ 5806.777694][   T73]      netlink_unicast+0x449/0x710
[ 5806.777694][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5806.777694][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5806.777694][   T73]      ___sys_sendmsg+0xee/0x170
[ 5806.777694][   T73]      __sys_sendmsg+0xcd/0x170
[ 5806.777694][   T73]      do_syscall_64+0xc6/0x1e0
[ 5806.777694][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5806.777694][   T73] 
[ 5806.779727][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5806.779727][   T73]      netdev_get_by_index+0x5e/0x80
[ 5806.779727][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5806.779727][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5806.779727][   T73]      ip6_route_add+0x1c/0x140
[ 5806.779727][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5806.779727][   T73]      addrconf_add_dev+0xe2/0x170
[ 5806.779727][   T73]      inet6_addr_add+0x12f/0xa40
[ 5806.779727][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5806.779727][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5806.779727][   T73]      netlink_rcv_skb+0x130/0x360
[ 5806.779727][   T73]      netlink_unicast+0x449/0x710
[ 5806.779727][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5806.779727][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5806.779727][   T73]      ___sys_sendmsg+0xee/0x170
[ 5806.779727][   T73]      __sys_sendmsg+0xcd/0x170
[ 5806.779727][   T73]      do_syscall_64+0xc6/0x1e0
[ 5806.779727][   T73] 
[ 5806.781711][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5806.781711][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5806.781711][   T73]      ipv6_find_idev+0x102/0x170
[ 5806.781711][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5806.781711][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5806.781711][   T73]      netlink_rcv_skb+0x130/0x360
[ 5806.781711][   T73]      netlink_unicast+0x449/0x710
[ 5806.781711][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5806.781711][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5806.781711][   T73]      ___sys_sendmsg+0xee/0x170
[ 5806.781711][   T73]      __sys_sendmsg+0xcd/0x170
[ 5806.781711][   T73]      do_syscall_64+0xc6/0x1e0
[ 5806.781711][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5806.781711][   T73] 
[ 5806.783271][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5806.783271][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5806.783271][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5806.783271][   T73]      ipv6_find_idev+0x102/0x170
[ 5806.783271][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5806.783271][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5806.783271][   T73]      netlink_rcv_skb+0x130/0x360
[ 5806.783271][   T73]      netlink_unicast+0x449/0x710
[ 5806.783271][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5806.783271][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5806.783271][   T73]      ___sys_sendmsg+0xee/0x170
[ 5806.783271][   T73]      __sys_sendmsg+0xcd/0x170
[ 5806.783271][   T73]      do_syscall_64+0xc6/0x1e0
[ 5806.783271][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5806.783271][   T73] 
[ 5806.785002][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5806.785274][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5806.785274][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5806.785274][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5806.785274][   T73]      fib6_nh_init+0xa22/0x1580
[ 5806.785274][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5806.785274][   T73]      ip6_route_add+0x1c/0x140
[ 5806.785274][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5806.785274][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5806.785274][   T73]      netlink_rcv_skb+0x130/0x360
[ 5806.785274][   T73]      netlink_unicast+0x449/0x710
[ 5806.785274][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5806.785274][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5806.785274][   T73]      ___sys_sendmsg+0xee/0x170
[ 5806.785274][   T73]      __sys_sendmsg+0xcd/0x170
[ 5806.785274][   T73]      do_syscall_64+0xc6/0x1e0
[ 5806.785274][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5806.785274][   T73] 
[ 5806.787370][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5806.787370][   T73]      dst_init+0x84/0x4a0
[ 5806.787370][   T73]      dst_alloc+0x97/0x150
[ 5806.787370][   T73]      ip6_dst_alloc+0x23/0x90
[ 5806.787370][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5806.787370][   T73]      ip6_pol_route+0x56f/0x840
[ 5806.787370][   T73]      fib6_rule_lookup+0x456/0x630
[ 5806.787370][   T73]      ip6_route_input+0x59c/0xa50
[ 5806.787370][   T73]      ipv6_rcv+0x397/0x810
[ 5806.787370][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5806.787370][   T73]      process_backlog+0x101/0x620
[ 5806.787370][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5806.787370][   T73]      net_rx_action+0x495/0xbe0
[ 5806.787370][   T73]      __do_softirq+0x1b5/0x7f6
[ 5806.787370][   T73] 
[ 5806.789295][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5806.789295][   T73]      netdev_get_by_index+0x5e/0x80
[ 5806.789295][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5806.789295][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5806.789295][   T73]      ip6_route_add+0x1c/0x140
[ 5806.789295][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5806.789295][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5806.789295][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5806.789295][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5806.789295][   T73]      netlink_rcv_skb+0x130/0x360
[ 5806.789295][   T73]      netlink_unicast+0x449/0x710
[ 5806.789295][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5806.789295][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5806.789295][   T73]      ___sys_sendmsg+0xee/0x170
[ 5806.789295][   T73]      __sys_sendmsg+0xcd/0x170
[ 5806.789295][   T73]      do_syscall_64+0xc6/0x1e0
[ 5806.789295][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5806.789295][   T73] 
[ 5806.791564][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5806.791564][   T73]      netdev_get_by_index+0x5e/0x80
[ 5806.791564][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5806.791564][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5806.791564][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5806.791564][   T73]      ipv6_add_addr+0x411/0x2000
[ 5806.791564][   T73]      inet6_addr_add+0x30e/0xa40
[ 5806.791564][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5806.791564][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5806.791564][   T73]      netlink_rcv_skb+0x130/0x360
[ 5806.791564][   T73]      netlink_unicast+0x449/0x710
[ 5806.791564][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5806.791564][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5806.791564][   T73]      ___sys_sendmsg+0xee/0x170
[ 5806.791564][   T73]      __sys_sendmsg+0xcd/0x170
[ 5806.791564][   T73]      do_syscall_64+0xc6/0x1e0
[ 5806.791564][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5806.791564][   T73] 
[ 5806.793838][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5806.793838][   T73]      netdev_get_by_index+0x5e/0x80
[ 5806.793838][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5806.793838][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5806.793838][   T73]      ip6_route_add+0x1c/0x140
[ 5806.793838][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5806.793838][   T73]      addrconf_add_dev+0xe2/0x170
[ 5806.793838][   T73]      inet6_addr_add+0x12f/0xa40
[ 5806.793838][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5806.793838][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5806.793838][   T73]      netlink_rcv_skb+0x130/0x360
[ 5806.793838][   T73]      netlink_unicast+0x449/0x710
[ 5806.793838][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5806.793838][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5806.793838][   T73]      ___sys_sendmsg+0xee/0x170
[ 5806.793838][   T73]      __sys_sendmsg+0xcd/0x170
[ 5806.793838][   T73]      do_syscall_64+0xc6/0x1e0
[ 5806.793838][   T73] 
[ 5806.796062][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5806.796062][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5806.796062][   T73]      ipv6_find_idev+0x102/0x170
[ 5806.796062][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5806.796062][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5806.796062][   T73]      netlink_rcv_skb+0x130/0x360
[ 5806.796062][   T73]      netlink_unicast+0x449/0x710
[ 5806.796062][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5806.796062][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5806.796062][   T73]      ___sys_sendmsg+0xee/0x170
[ 5806.796062][   T73]      __sys_sendmsg+0xcd/0x170
[ 5806.796062][   T73]      do_syscall_64+0xc6/0x1e0
[ 5806.796062][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5806.796062][   T73] 
[ 5806.797874][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5806.797874][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5806.797874][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5806.797874][   T73]      ipv6_find_idev+0x102/0x170
[ 5806.797874][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5806.797874][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5806.797874][   T73]      netlink_rcv_skb+0x130/0x360
[ 5806.797874][   T73]      netlink_unicast+0x449/0x710
[ 5806.797874][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5806.797874][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5806.797874][   T73]      ___sys_sendmsg+0xee/0x170
[ 5806.797874][   T73]      __sys_sendmsg+0xcd/0x170
[ 5806.797874][   T73]      do_syscall_64+0xc6/0x1e0
[ 5806.797874][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5806.797874][   T73] 
[ 5806.799783][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5806.800059][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5806.800059][   T73]      netdev_get_by_index+0x5e/0x80
[ 5806.800059][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5806.800059][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5806.800059][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5806.800059][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5806.800059][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5806.800059][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5806.800059][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5806.800059][   T73]      addrconf_dad_begin+0x310/0x670
[ 5806.800059][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5806.800059][   T73]      process_one_work+0x84d/0x18a0
[ 5806.800059][   T73]      worker_thread+0x587/0xd30
[ 5806.800059][   T73]      kthread+0x28a/0x350
[ 5806.800059][   T73]      ret_from_fork+0x31/0x70
[ 5806.800059][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5806.800059][   T73] 
[ 5806.802231][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5806.802231][   T73]      netdev_get_by_index+0x5e/0x80
[ 5806.802231][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5806.802231][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5806.802231][   T73]      ip6_route_add+0x1c/0x140
[ 5806.802231][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5806.802231][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5806.802231][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5806.802231][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5806.802231][   T73]      netlink_rcv_skb+0x130/0x360
[ 5806.802231][   T73]      netlink_unicast+0x449/0x710
[ 5806.802231][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5806.802231][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5806.802231][   T73]      ___sys_sendmsg+0xee/0x170
[ 5806.802231][   T73]      __sys_sendmsg+0xcd/0x170
[ 5806.802231][   T73]      do_syscall_64+0xc6/0x1e0
[ 5806.802231][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5806.802231][   T73] 
[ 5806.804510][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5806.804510][   T73]      netdev_get_by_index+0x5e/0x80
[ 5806.804510][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5806.804510][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5806.804510][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5806.804510][   T73]      ipv6_add_addr+0x411/0x2000
[ 5806.804510][   T73]      inet6_addr_add+0x30e/0xa40
[ 5806.804510][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5806.804510][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5806.804510][   T73]      netlink_rcv_skb+0x130/0x360
[ 5806.804510][   T73]      netlink_unicast+0x449/0x710
[ 5806.804510][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5806.804510][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5806.804510][   T73]      ___sys_sendmsg+0xee/0x170
[ 5806.804510][   T73]      __sys_sendmsg+0xcd/0x170
[ 5806.804510][   T73]      do_syscall_64+0xc6/0x1e0
[ 5806.804510][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5806.804510][   T73] 
[ 5806.806865][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5806.806865][   T73]      netdev_get_by_index+0x5e/0x80
[ 5806.806865][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5806.806865][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5806.806865][   T73]      ip6_route_add+0x1c/0x140
[ 5806.806865][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5806.806865][   T73]      addrconf_add_dev+0xe2/0x170
[ 5806.806865][   T73]      inet6_addr_add+0x12f/0xa40
[ 5806.806865][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5806.806865][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5806.806865][   T73]      netlink_rcv_skb+0x130/0x360
[ 5806.806865][   T73]      netlink_unicast+0x449/0x710
[ 5806.806865][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5806.806865][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5806.806865][   T73]      ___sys_sendmsg+0xee/0x170
[ 5806.806865][   T73]      __sys_sendmsg+0xcd/0x170
[ 5806.806865][   T73]      do_syscall_64+0xc6/0x1e0
[ 5806.806865][   T73] 
[ 5806.809055][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5806.809055][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5806.809055][   T73]      ipv6_find_idev+0x102/0x170
[ 5806.809055][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5806.809055][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5806.809055][   T73]      netlink_rcv_skb+0x130/0x360
[ 5806.809055][   T73]      netlink_unicast+0x449/0x710
[ 5806.809055][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5806.809055][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5806.809055][   T73]      ___sys_sendmsg+0xee/0x170
[ 5806.809055][   T73]      __sys_sendmsg+0xcd/0x170
[ 5806.809055][   T73]      do_syscall_64+0xc6/0x1e0
[ 5806.809055][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5806.809055][   T73] 
[ 5806.810812][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5806.810812][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5806.810812][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5806.810812][   T73]      ipv6_find_idev+0x102/0x170
[ 5806.810812][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5806.810812][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5806.810812][   T73]      netlink_rcv_skb+0x130/0x360
[ 5806.810812][   T73]      netlink_unicast+0x449/0x710
[ 5806.810812][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5806.810812][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5806.810812][   T73]      ___sys_sendmsg+0xee/0x170
[ 5806.810812][   T73]      __sys_sendmsg+0xcd/0x170
[ 5806.810812][   T73]      do_syscall_64+0xc6/0x1e0
[ 5806.810812][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5806.810812][   T73] 
[ 5817.055754][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5817.056236][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5817.056236][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5817.056236][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5817.056236][   T73]      fib6_nh_init+0xa22/0x1580
[ 5817.056236][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5817.056236][   T73]      ip6_route_add+0x1c/0x140
[ 5817.056236][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5817.056236][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5817.056236][   T73]      netlink_rcv_skb+0x130/0x360
[ 5817.056236][   T73]      netlink_unicast+0x449/0x710
[ 5817.056236][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5817.056236][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5817.056236][   T73]      ___sys_sendmsg+0xee/0x170
[ 5817.056236][   T73]      __sys_sendmsg+0xcd/0x170
[ 5817.056236][   T73]      do_syscall_64+0xc6/0x1e0
[ 5817.056236][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5817.056236][   T73] 
[ 5817.058181][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5817.058181][   T73]      dst_init+0x84/0x4a0
[ 5817.058181][   T73]      dst_alloc+0x97/0x150
[ 5817.058181][   T73]      ip6_dst_alloc+0x23/0x90
[ 5817.058181][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5817.058181][   T73]      ip6_pol_route+0x56f/0x840
[ 5817.058181][   T73]      fib6_rule_lookup+0x456/0x630
[ 5817.058181][   T73]      ip6_route_input+0x59c/0xa50
[ 5817.058181][   T73]      ipv6_rcv+0x397/0x810
[ 5817.058181][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5817.058181][   T73]      process_backlog+0x101/0x620
[ 5817.058181][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5817.058181][   T73]      net_rx_action+0x495/0xbe0
[ 5817.058181][   T73]      __do_softirq+0x1b5/0x7f6
[ 5817.058181][   T73] 
[ 5817.059855][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5817.059855][   T73]      netdev_get_by_index+0x5e/0x80
[ 5817.059855][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5817.059855][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5817.059855][   T73]      ip6_route_add+0x1c/0x140
[ 5817.059855][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5817.059855][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5817.059855][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5817.059855][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5817.059855][   T73]      netlink_rcv_skb+0x130/0x360
[ 5817.059855][   T73]      netlink_unicast+0x449/0x710
[ 5817.059855][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5817.059855][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5817.059855][   T73]      ___sys_sendmsg+0xee/0x170
[ 5817.059855][   T73]      __sys_sendmsg+0xcd/0x170
[ 5817.059855][   T73]      do_syscall_64+0xc6/0x1e0
[ 5817.059855][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5817.059855][   T73] 
[ 5817.061889][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5817.061889][   T73]      netdev_get_by_index+0x5e/0x80
[ 5817.061889][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5817.061889][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5817.061889][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5817.061889][   T73]      ipv6_add_addr+0x411/0x2000
[ 5817.061889][   T73]      inet6_addr_add+0x30e/0xa40
[ 5817.061889][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5817.061889][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5817.061889][   T73]      netlink_rcv_skb+0x130/0x360
[ 5817.061889][   T73]      netlink_unicast+0x449/0x710
[ 5817.061889][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5817.061889][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5817.061889][   T73]      ___sys_sendmsg+0xee/0x170
[ 5817.061889][   T73]      __sys_sendmsg+0xcd/0x170
[ 5817.061889][   T73]      do_syscall_64+0xc6/0x1e0
[ 5817.061889][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5817.061889][   T73] 
[ 5817.063906][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5817.063906][   T73]      netdev_get_by_index+0x5e/0x80
[ 5817.063906][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5817.063906][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5817.063906][   T73]      ip6_route_add+0x1c/0x140
[ 5817.063906][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5817.063906][   T73]      addrconf_add_dev+0xe2/0x170
[ 5817.063906][   T73]      inet6_addr_add+0x12f/0xa40
[ 5817.063906][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5817.063906][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5817.063906][   T73]      netlink_rcv_skb+0x130/0x360
[ 5817.063906][   T73]      netlink_unicast+0x449/0x710
[ 5817.063906][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5817.063906][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5817.063906][   T73]      ___sys_sendmsg+0xee/0x170
[ 5817.063906][   T73]      __sys_sendmsg+0xcd/0x170
[ 5817.063906][   T73]      do_syscall_64+0xc6/0x1e0
[ 5817.063906][   T73] 
[ 5817.065901][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5817.065901][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5817.065901][   T73]      ipv6_find_idev+0x102/0x170
[ 5817.065901][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5817.065901][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5817.065901][   T73]      netlink_rcv_skb+0x130/0x360
[ 5817.065901][   T73]      netlink_unicast+0x449/0x710
[ 5817.065901][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5817.065901][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5817.065901][   T73]      ___sys_sendmsg+0xee/0x170
[ 5817.065901][   T73]      __sys_sendmsg+0xcd/0x170
[ 5817.065901][   T73]      do_syscall_64+0xc6/0x1e0
[ 5817.065901][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5817.065901][   T73] 
[ 5817.067464][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5817.067464][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5817.067464][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5817.067464][   T73]      ipv6_find_idev+0x102/0x170
[ 5817.067464][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5817.067464][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5817.067464][   T73]      netlink_rcv_skb+0x130/0x360
[ 5817.067464][   T73]      netlink_unicast+0x449/0x710
[ 5817.067464][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5817.067464][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5817.067464][   T73]      ___sys_sendmsg+0xee/0x170
[ 5817.067464][   T73]      __sys_sendmsg+0xcd/0x170
[ 5817.067464][   T73]      do_syscall_64+0xc6/0x1e0
[ 5817.067464][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5817.067464][   T73] 
[ 5817.069184][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5817.069471][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5817.069471][   T73]      netdev_get_by_index+0x5e/0x80
[ 5817.069471][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5817.069471][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5817.069471][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5817.069471][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5817.069471][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5817.069471][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5817.069471][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5817.069471][   T73]      addrconf_dad_begin+0x310/0x670
[ 5817.069471][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5817.069471][   T73]      process_one_work+0x84d/0x18a0
[ 5817.069471][   T73]      worker_thread+0x587/0xd30
[ 5817.069471][   T73]      kthread+0x28a/0x350
[ 5817.069471][   T73]      ret_from_fork+0x31/0x70
[ 5817.069471][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5817.069471][   T73] 
[ 5817.071400][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5817.071400][   T73]      netdev_get_by_index+0x5e/0x80
[ 5817.071400][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5817.071400][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5817.071400][   T73]      ip6_route_add+0x1c/0x140
[ 5817.071400][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5817.071400][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5817.071400][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5817.071400][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5817.071400][   T73]      netlink_rcv_skb+0x130/0x360
[ 5817.071400][   T73]      netlink_unicast+0x449/0x710
[ 5817.071400][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5817.071400][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5817.071400][   T73]      ___sys_sendmsg+0xee/0x170
[ 5817.071400][   T73]      __sys_sendmsg+0xcd/0x170
[ 5817.071400][   T73]      do_syscall_64+0xc6/0x1e0
[ 5817.071400][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5817.071400][   T73] 
[ 5817.073420][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5817.073420][   T73]      netdev_get_by_index+0x5e/0x80
[ 5817.073420][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5817.073420][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5817.073420][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5817.073420][   T73]      ipv6_add_addr+0x411/0x2000
[ 5817.073420][   T73]      inet6_addr_add+0x30e/0xa40
[ 5817.073420][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5817.073420][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5817.073420][   T73]      netlink_rcv_skb+0x130/0x360
[ 5817.073420][   T73]      netlink_unicast+0x449/0x710
[ 5817.073420][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5817.073420][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5817.073420][   T73]      ___sys_sendmsg+0xee/0x170
[ 5817.073420][   T73]      __sys_sendmsg+0xcd/0x170
[ 5817.073420][   T73]      do_syscall_64+0xc6/0x1e0
[ 5817.073420][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5817.073420][   T73] 
[ 5817.075431][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5817.075431][   T73]      netdev_get_by_index+0x5e/0x80
[ 5817.075431][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5817.075431][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5817.075431][   T73]      ip6_route_add+0x1c/0x140
[ 5817.075431][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5817.075431][   T73]      addrconf_add_dev+0xe2/0x170
[ 5817.075431][   T73]      inet6_addr_add+0x12f/0xa40
[ 5817.075431][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5817.075431][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5817.075431][   T73]      netlink_rcv_skb+0x130/0x360
[ 5817.075431][   T73]      netlink_unicast+0x449/0x710
[ 5817.075431][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5817.075431][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5817.075431][   T73]      ___sys_sendmsg+0xee/0x170
[ 5817.075431][   T73]      __sys_sendmsg+0xcd/0x170
[ 5817.075431][   T73]      do_syscall_64+0xc6/0x1e0
[ 5817.075431][   T73] 
[ 5817.077426][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5817.077426][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5817.077426][   T73]      ipv6_find_idev+0x102/0x170
[ 5817.077426][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5817.077426][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5817.077426][   T73]      netlink_rcv_skb+0x130/0x360
[ 5817.077426][   T73]      netlink_unicast+0x449/0x710
[ 5817.077426][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5817.077426][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5817.077426][   T73]      ___sys_sendmsg+0xee/0x170
[ 5817.077426][   T73]      __sys_sendmsg+0xcd/0x170
[ 5817.077426][   T73]      do_syscall_64+0xc6/0x1e0
[ 5817.077426][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5817.077426][   T73] 
[ 5817.078992][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5817.078992][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5817.078992][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5817.078992][   T73]      ipv6_find_idev+0x102/0x170
[ 5817.078992][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5817.078992][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5817.078992][   T73]      netlink_rcv_skb+0x130/0x360
[ 5817.078992][   T73]      netlink_unicast+0x449/0x710
[ 5817.078992][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5817.078992][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5817.078992][   T73]      ___sys_sendmsg+0xee/0x170
[ 5817.078992][   T73]      __sys_sendmsg+0xcd/0x170
[ 5817.078992][   T73]      do_syscall_64+0xc6/0x1e0
[ 5817.078992][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5817.078992][   T73] 
[ 5817.080697][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5817.080975][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5817.080975][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5817.080975][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5817.080975][   T73]      fib6_nh_init+0xa22/0x1580
[ 5817.080975][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5817.080975][   T73]      ip6_route_add+0x1c/0x140
[ 5817.080975][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5817.080975][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5817.080975][   T73]      netlink_rcv_skb+0x130/0x360
[ 5817.080975][   T73]      netlink_unicast+0x449/0x710
[ 5817.080975][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5817.080975][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5817.080975][   T73]      ___sys_sendmsg+0xee/0x170
[ 5817.080975][   T73]      __sys_sendmsg+0xcd/0x170
[ 5817.080975][   T73]      do_syscall_64+0xc6/0x1e0
[ 5817.080975][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5817.080975][   T73] 
[ 5817.083077][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5817.083077][   T73]      dst_init+0x84/0x4a0
[ 5817.083077][   T73]      dst_alloc+0x97/0x150
[ 5817.083077][   T73]      ip6_dst_alloc+0x23/0x90
[ 5817.083077][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5817.083077][   T73]      ip6_pol_route+0x56f/0x840
[ 5817.083077][   T73]      fib6_rule_lookup+0x456/0x630
[ 5817.083077][   T73]      ip6_route_input+0x59c/0xa50
[ 5817.083077][   T73]      ipv6_rcv+0x397/0x810
[ 5817.083077][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5817.083077][   T73]      process_backlog+0x101/0x620
[ 5817.083077][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5817.083077][   T73]      net_rx_action+0x495/0xbe0
[ 5817.083077][   T73]      __do_softirq+0x1b5/0x7f6
[ 5817.083077][   T73] 
[ 5817.084981][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5817.084981][   T73]      netdev_get_by_index+0x5e/0x80
[ 5817.084981][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5817.084981][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5817.084981][   T73]      ip6_route_add+0x1c/0x140
[ 5817.084981][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5817.084981][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5817.084981][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5817.084981][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5817.084981][   T73]      netlink_rcv_skb+0x130/0x360
[ 5817.084981][   T73]      netlink_unicast+0x449/0x710
[ 5817.084981][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5817.084981][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5817.084981][   T73]      ___sys_sendmsg+0xee/0x170
[ 5817.084981][   T73]      __sys_sendmsg+0xcd/0x170
[ 5817.084981][   T73]      do_syscall_64+0xc6/0x1e0
[ 5817.084981][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5817.084981][   T73] 
[ 5817.087252][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5817.087252][   T73]      netdev_get_by_index+0x5e/0x80
[ 5817.087252][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5817.087252][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5817.087252][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5817.087252][   T73]      ipv6_add_addr+0x411/0x2000
[ 5817.087252][   T73]      inet6_addr_add+0x30e/0xa40
[ 5817.087252][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5817.087252][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5817.087252][   T73]      netlink_rcv_skb+0x130/0x360
[ 5817.087252][   T73]      netlink_unicast+0x449/0x710
[ 5817.087252][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5817.087252][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5817.087252][   T73]      ___sys_sendmsg+0xee/0x170
[ 5817.087252][   T73]      __sys_sendmsg+0xcd/0x170
[ 5817.087252][   T73]      do_syscall_64+0xc6/0x1e0
[ 5817.087252][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5817.087252][   T73] 
[ 5817.089540][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5817.089540][   T73]      netdev_get_by_index+0x5e/0x80
[ 5817.089540][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5817.089540][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5817.089540][   T73]      ip6_route_add+0x1c/0x140
[ 5817.089540][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5817.089540][   T73]      addrconf_add_dev+0xe2/0x170
[ 5817.089540][   T73]      inet6_addr_add+0x12f/0xa40
[ 5817.089540][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5817.089540][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5817.089540][   T73]      netlink_rcv_skb+0x130/0x360
[ 5817.089540][   T73]      netlink_unicast+0x449/0x710
[ 5817.089540][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5817.089540][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5817.089540][   T73]      ___sys_sendmsg+0xee/0x170
[ 5817.089540][   T73]      __sys_sendmsg+0xcd/0x170
[ 5817.089540][   T73]      do_syscall_64+0xc6/0x1e0
[ 5817.089540][   T73] 
[ 5817.091788][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5817.091788][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5817.091788][   T73]      ipv6_find_idev+0x102/0x170
[ 5817.091788][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5817.091788][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5817.091788][   T73]      netlink_rcv_skb+0x130/0x360
[ 5817.091788][   T73]      netlink_unicast+0x449/0x710
[ 5817.091788][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5817.091788][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5817.091788][   T73]      ___sys_sendmsg+0xee/0x170
[ 5817.091788][   T73]      __sys_sendmsg+0xcd/0x170
[ 5817.091788][   T73]      do_syscall_64+0xc6/0x1e0
[ 5817.091788][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5817.091788][   T73] 
[ 5817.093612][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5817.093612][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5817.093612][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5817.093612][   T73]      ipv6_find_idev+0x102/0x170
[ 5817.093612][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5817.093612][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5817.093612][   T73]      netlink_rcv_skb+0x130/0x360
[ 5817.093612][   T73]      netlink_unicast+0x449/0x710
[ 5817.093612][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5817.093612][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5817.093612][   T73]      ___sys_sendmsg+0xee/0x170
[ 5817.093612][   T73]      __sys_sendmsg+0xcd/0x170
[ 5817.093612][   T73]      do_syscall_64+0xc6/0x1e0
[ 5817.093612][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5817.093612][   T73] 
[ 5817.095525][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5817.096230][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5817.096230][   T73]      netdev_get_by_index+0x5e/0x80
[ 5817.096230][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5817.096230][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5817.096230][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5817.096230][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5817.096230][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5817.096230][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5817.096230][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5817.096230][   T73]      addrconf_dad_begin+0x310/0x670
[ 5817.096230][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5817.096230][   T73]      process_one_work+0x84d/0x18a0
[ 5817.096230][   T73]      worker_thread+0x587/0xd30
[ 5817.096230][   T73]      kthread+0x28a/0x350
[ 5817.096230][   T73]      ret_from_fork+0x31/0x70
[ 5817.096230][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5817.096230][   T73] 
[ 5817.098194][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5817.098194][   T73]      netdev_get_by_index+0x5e/0x80
[ 5817.098194][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5817.098194][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5817.098194][   T73]      ip6_route_add+0x1c/0x140
[ 5817.098194][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5817.098194][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5817.098194][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5817.098194][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5817.098194][   T73]      netlink_rcv_skb+0x130/0x360
[ 5817.098194][   T73]      netlink_unicast+0x449/0x710
[ 5817.098194][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5817.098194][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5817.098194][   T73]      ___sys_sendmsg+0xee/0x170
[ 5817.098194][   T73]      __sys_sendmsg+0xcd/0x170
[ 5817.098194][   T73]      do_syscall_64+0xc6/0x1e0
[ 5817.098194][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5817.098194][   T73] 
[ 5817.100346][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5817.100346][   T73]      netdev_get_by_index+0x5e/0x80
[ 5817.100346][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5817.100346][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5817.100346][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5817.100346][   T73]      ipv6_add_addr+0x411/0x2000
[ 5817.100346][   T73]      inet6_addr_add+0x30e/0xa40
[ 5817.100346][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5817.100346][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5817.100346][   T73]      netlink_rcv_skb+0x130/0x360
[ 5817.100346][   T73]      netlink_unicast+0x449/0x710
[ 5817.100346][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5817.100346][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5817.100346][   T73]      ___sys_sendmsg+0xee/0x170
[ 5817.100346][   T73]      __sys_sendmsg+0xcd/0x170
[ 5817.100346][   T73]      do_syscall_64+0xc6/0x1e0
[ 5817.100346][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5817.100346][   T73] 
[ 5817.102631][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5817.102631][   T73]      netdev_get_by_index+0x5e/0x80
[ 5817.102631][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5817.102631][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5817.102631][   T73]      ip6_route_add+0x1c/0x140
[ 5817.102631][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5817.102631][   T73]      addrconf_add_dev+0xe2/0x170
[ 5817.102631][   T73]      inet6_addr_add+0x12f/0xa40
[ 5817.102631][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5817.102631][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5817.102631][   T73]      netlink_rcv_skb+0x130/0x360
[ 5817.102631][   T73]      netlink_unicast+0x449/0x710
[ 5817.102631][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5817.102631][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5817.102631][   T73]      ___sys_sendmsg+0xee/0x170
[ 5817.102631][   T73]      __sys_sendmsg+0xcd/0x170
[ 5817.102631][   T73]      do_syscall_64+0xc6/0x1e0
[ 5817.102631][   T73] 
[ 5817.104810][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5817.104810][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5817.104810][   T73]      ipv6_find_idev+0x102/0x170
[ 5817.104810][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5817.104810][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5817.104810][   T73]      netlink_rcv_skb+0x130/0x360
[ 5817.104810][   T73]      netlink_unicast+0x449/0x710
[ 5817.104810][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5817.104810][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5817.104810][   T73]      ___sys_sendmsg+0xee/0x170
[ 5817.104810][   T73]      __sys_sendmsg+0xcd/0x170
[ 5817.104810][   T73]      do_syscall_64+0xc6/0x1e0
[ 5817.104810][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5817.104810][   T73] 
[ 5817.106617][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5817.106617][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5817.106617][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5817.106617][   T73]      ipv6_find_idev+0x102/0x170
[ 5817.106617][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5817.106617][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5817.106617][   T73]      netlink_rcv_skb+0x130/0x360
[ 5817.106617][   T73]      netlink_unicast+0x449/0x710
[ 5817.106617][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5817.106617][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5817.106617][   T73]      ___sys_sendmsg+0xee/0x170
[ 5817.106617][   T73]      __sys_sendmsg+0xcd/0x170
[ 5817.106617][   T73]      do_syscall_64+0xc6/0x1e0
[ 5817.106617][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5817.106617][   T73] 
[ 5827.351758][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5827.352243][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5827.352243][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5827.352243][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5827.352243][   T73]      fib6_nh_init+0xa22/0x1580
[ 5827.352243][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5827.352243][   T73]      ip6_route_add+0x1c/0x140
[ 5827.352243][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5827.352243][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5827.352243][   T73]      netlink_rcv_skb+0x130/0x360
[ 5827.352243][   T73]      netlink_unicast+0x449/0x710
[ 5827.352243][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5827.352243][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5827.352243][   T73]      ___sys_sendmsg+0xee/0x170
[ 5827.352243][   T73]      __sys_sendmsg+0xcd/0x170
[ 5827.352243][   T73]      do_syscall_64+0xc6/0x1e0
[ 5827.352243][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5827.352243][   T73] 
[ 5827.354192][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5827.354192][   T73]      dst_init+0x84/0x4a0
[ 5827.354192][   T73]      dst_alloc+0x97/0x150
[ 5827.354192][   T73]      ip6_dst_alloc+0x23/0x90
[ 5827.354192][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5827.354192][   T73]      ip6_pol_route+0x56f/0x840
[ 5827.354192][   T73]      fib6_rule_lookup+0x456/0x630
[ 5827.354192][   T73]      ip6_route_input+0x59c/0xa50
[ 5827.354192][   T73]      ipv6_rcv+0x397/0x810
[ 5827.354192][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5827.354192][   T73]      process_backlog+0x101/0x620
[ 5827.354192][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5827.354192][   T73]      net_rx_action+0x495/0xbe0
[ 5827.354192][   T73]      __do_softirq+0x1b5/0x7f6
[ 5827.354192][   T73] 
[ 5827.355862][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5827.355862][   T73]      netdev_get_by_index+0x5e/0x80
[ 5827.355862][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5827.355862][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5827.355862][   T73]      ip6_route_add+0x1c/0x140
[ 5827.355862][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5827.355862][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5827.355862][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5827.355862][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5827.355862][   T73]      netlink_rcv_skb+0x130/0x360
[ 5827.355862][   T73]      netlink_unicast+0x449/0x710
[ 5827.355862][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5827.355862][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5827.355862][   T73]      ___sys_sendmsg+0xee/0x170
[ 5827.355862][   T73]      __sys_sendmsg+0xcd/0x170
[ 5827.355862][   T73]      do_syscall_64+0xc6/0x1e0
[ 5827.355862][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5827.355862][   T73] 
[ 5827.357916][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5827.357916][   T73]      netdev_get_by_index+0x5e/0x80
[ 5827.357916][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5827.357916][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5827.357916][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5827.357916][   T73]      ipv6_add_addr+0x411/0x2000
[ 5827.357916][   T73]      inet6_addr_add+0x30e/0xa40
[ 5827.357916][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5827.357916][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5827.357916][   T73]      netlink_rcv_skb+0x130/0x360
[ 5827.357916][   T73]      netlink_unicast+0x449/0x710
[ 5827.357916][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5827.357916][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5827.357916][   T73]      ___sys_sendmsg+0xee/0x170
[ 5827.357916][   T73]      __sys_sendmsg+0xcd/0x170
[ 5827.357916][   T73]      do_syscall_64+0xc6/0x1e0
[ 5827.357916][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5827.357916][   T73] 
[ 5827.359952][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5827.359952][   T73]      netdev_get_by_index+0x5e/0x80
[ 5827.359952][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5827.359952][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5827.359952][   T73]      ip6_route_add+0x1c/0x140
[ 5827.359952][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5827.359952][   T73]      addrconf_add_dev+0xe2/0x170
[ 5827.359952][   T73]      inet6_addr_add+0x12f/0xa40
[ 5827.359952][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5827.359952][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5827.359952][   T73]      netlink_rcv_skb+0x130/0x360
[ 5827.359952][   T73]      netlink_unicast+0x449/0x710
[ 5827.359952][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5827.359952][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5827.359952][   T73]      ___sys_sendmsg+0xee/0x170
[ 5827.359952][   T73]      __sys_sendmsg+0xcd/0x170
[ 5827.359952][   T73]      do_syscall_64+0xc6/0x1e0
[ 5827.359952][   T73] 
[ 5827.361949][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5827.361949][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5827.361949][   T73]      ipv6_find_idev+0x102/0x170
[ 5827.361949][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5827.361949][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5827.361949][   T73]      netlink_rcv_skb+0x130/0x360
[ 5827.361949][   T73]      netlink_unicast+0x449/0x710
[ 5827.361949][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5827.361949][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5827.361949][   T73]      ___sys_sendmsg+0xee/0x170
[ 5827.361949][   T73]      __sys_sendmsg+0xcd/0x170
[ 5827.361949][   T73]      do_syscall_64+0xc6/0x1e0
[ 5827.361949][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5827.361949][   T73] 
[ 5827.363529][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5827.363529][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5827.363529][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5827.363529][   T73]      ipv6_find_idev+0x102/0x170
[ 5827.363529][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5827.363529][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5827.363529][   T73]      netlink_rcv_skb+0x130/0x360
[ 5827.363529][   T73]      netlink_unicast+0x449/0x710
[ 5827.363529][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5827.363529][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5827.363529][   T73]      ___sys_sendmsg+0xee/0x170
[ 5827.363529][   T73]      __sys_sendmsg+0xcd/0x170
[ 5827.363529][   T73]      do_syscall_64+0xc6/0x1e0
[ 5827.363529][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5827.363529][   T73] 
[ 5827.365264][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5827.365557][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5827.365557][   T73]      netdev_get_by_index+0x5e/0x80
[ 5827.365557][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5827.365557][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5827.365557][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5827.365557][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5827.365557][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5827.365557][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5827.365557][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5827.365557][   T73]      addrconf_dad_begin+0x310/0x670
[ 5827.365557][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5827.365557][   T73]      process_one_work+0x84d/0x18a0
[ 5827.365557][   T73]      worker_thread+0x587/0xd30
[ 5827.365557][   T73]      kthread+0x28a/0x350
[ 5827.365557][   T73]      ret_from_fork+0x31/0x70
[ 5827.365557][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5827.365557][   T73] 
[ 5827.367540][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5827.367540][   T73]      netdev_get_by_index+0x5e/0x80
[ 5827.367540][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5827.367540][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5827.367540][   T73]      ip6_route_add+0x1c/0x140
[ 5827.367540][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5827.367540][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5827.367540][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5827.367540][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5827.367540][   T73]      netlink_rcv_skb+0x130/0x360
[ 5827.367540][   T73]      netlink_unicast+0x449/0x710
[ 5827.367540][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5827.367540][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5827.367540][   T73]      ___sys_sendmsg+0xee/0x170
[ 5827.367540][   T73]      __sys_sendmsg+0xcd/0x170
[ 5827.367540][   T73]      do_syscall_64+0xc6/0x1e0
[ 5827.367540][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5827.367540][   T73] 
[ 5827.369587][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5827.369587][   T73]      netdev_get_by_index+0x5e/0x80
[ 5827.369587][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5827.369587][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5827.369587][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5827.369587][   T73]      ipv6_add_addr+0x411/0x2000
[ 5827.369587][   T73]      inet6_addr_add+0x30e/0xa40
[ 5827.369587][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5827.369587][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5827.369587][   T73]      netlink_rcv_skb+0x130/0x360
[ 5827.369587][   T73]      netlink_unicast+0x449/0x710
[ 5827.369587][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5827.369587][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5827.369587][   T73]      ___sys_sendmsg+0xee/0x170
[ 5827.369587][   T73]      __sys_sendmsg+0xcd/0x170
[ 5827.369587][   T73]      do_syscall_64+0xc6/0x1e0
[ 5827.369587][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5827.369587][   T73] 
[ 5827.371627][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5827.371627][   T73]      netdev_get_by_index+0x5e/0x80
[ 5827.371627][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5827.371627][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5827.371627][   T73]      ip6_route_add+0x1c/0x140
[ 5827.371627][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5827.371627][   T73]      addrconf_add_dev+0xe2/0x170
[ 5827.371627][   T73]      inet6_addr_add+0x12f/0xa40
[ 5827.371627][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5827.371627][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5827.371627][   T73]      netlink_rcv_skb+0x130/0x360
[ 5827.371627][   T73]      netlink_unicast+0x449/0x710
[ 5827.371627][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5827.371627][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5827.371627][   T73]      ___sys_sendmsg+0xee/0x170
[ 5827.371627][   T73]      __sys_sendmsg+0xcd/0x170
[ 5827.371627][   T73]      do_syscall_64+0xc6/0x1e0
[ 5827.371627][   T73] 
[ 5827.373630][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5827.373630][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5827.373630][   T73]      ipv6_find_idev+0x102/0x170
[ 5827.373630][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5827.373630][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5827.373630][   T73]      netlink_rcv_skb+0x130/0x360
[ 5827.373630][   T73]      netlink_unicast+0x449/0x710
[ 5827.373630][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5827.373630][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5827.373630][   T73]      ___sys_sendmsg+0xee/0x170
[ 5827.373630][   T73]      __sys_sendmsg+0xcd/0x170
[ 5827.373630][   T73]      do_syscall_64+0xc6/0x1e0
[ 5827.373630][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5827.373630][   T73] 
[ 5827.375199][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5827.375199][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5827.375199][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5827.375199][   T73]      ipv6_find_idev+0x102/0x170
[ 5827.375199][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5827.375199][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5827.375199][   T73]      netlink_rcv_skb+0x130/0x360
[ 5827.375199][   T73]      netlink_unicast+0x449/0x710
[ 5827.375199][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5827.375199][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5827.375199][   T73]      ___sys_sendmsg+0xee/0x170
[ 5827.375199][   T73]      __sys_sendmsg+0xcd/0x170
[ 5827.375199][   T73]      do_syscall_64+0xc6/0x1e0
[ 5827.375199][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5827.375199][   T73] 
[ 5827.377008][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5827.377288][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5827.377288][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5827.377288][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5827.377288][   T73]      fib6_nh_init+0xa22/0x1580
[ 5827.377288][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5827.377288][   T73]      ip6_route_add+0x1c/0x140
[ 5827.377288][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5827.377288][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5827.377288][   T73]      netlink_rcv_skb+0x130/0x360
[ 5827.377288][   T73]      netlink_unicast+0x449/0x710
[ 5827.377288][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5827.377288][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5827.377288][   T73]      ___sys_sendmsg+0xee/0x170
[ 5827.377288][   T73]      __sys_sendmsg+0xcd/0x170
[ 5827.377288][   T73]      do_syscall_64+0xc6/0x1e0
[ 5827.377288][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5827.377288][   T73] 
[ 5827.379342][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5827.379342][   T73]      dst_init+0x84/0x4a0
[ 5827.379342][   T73]      dst_alloc+0x97/0x150
[ 5827.379342][   T73]      ip6_dst_alloc+0x23/0x90
[ 5827.379342][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5827.379342][   T73]      ip6_pol_route+0x56f/0x840
[ 5827.379342][   T73]      fib6_rule_lookup+0x456/0x630
[ 5827.379342][   T73]      ip6_route_input+0x59c/0xa50
[ 5827.379342][   T73]      ipv6_rcv+0x397/0x810
[ 5827.379342][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5827.379342][   T73]      process_backlog+0x101/0x620
[ 5827.379342][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5827.379342][   T73]      net_rx_action+0x495/0xbe0
[ 5827.379342][   T73]      __do_softirq+0x1b5/0x7f6
[ 5827.379342][   T73] 
[ 5827.381130][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5827.381130][   T73]      netdev_get_by_index+0x5e/0x80
[ 5827.381130][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5827.381130][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5827.381130][   T73]      ip6_route_add+0x1c/0x140
[ 5827.381130][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5827.381130][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5827.381130][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5827.381130][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5827.381130][   T73]      netlink_rcv_skb+0x130/0x360
[ 5827.381130][   T73]      netlink_unicast+0x449/0x710
[ 5827.381130][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5827.381130][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5827.381130][   T73]      ___sys_sendmsg+0xee/0x170
[ 5827.381130][   T73]      __sys_sendmsg+0xcd/0x170
[ 5827.381130][   T73]      do_syscall_64+0xc6/0x1e0
[ 5827.381130][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5827.381130][   T73] 
[ 5827.383295][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5827.383295][   T73]      netdev_get_by_index+0x5e/0x80
[ 5827.383295][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5827.383295][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5827.383295][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5827.383295][   T73]      ipv6_add_addr+0x411/0x2000
[ 5827.383295][   T73]      inet6_addr_add+0x30e/0xa40
[ 5827.383295][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5827.383295][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5827.383295][   T73]      netlink_rcv_skb+0x130/0x360
[ 5827.383295][   T73]      netlink_unicast+0x449/0x710
[ 5827.383295][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5827.383295][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5827.383295][   T73]      ___sys_sendmsg+0xee/0x170
[ 5827.383295][   T73]      __sys_sendmsg+0xcd/0x170
[ 5827.383295][   T73]      do_syscall_64+0xc6/0x1e0
[ 5827.383295][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5827.383295][   T73] 
[ 5827.385438][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5827.385438][   T73]      netdev_get_by_index+0x5e/0x80
[ 5827.385438][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5827.385438][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5827.385438][   T73]      ip6_route_add+0x1c/0x140
[ 5827.385438][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5827.385438][   T73]      addrconf_add_dev+0xe2/0x170
[ 5827.385438][   T73]      inet6_addr_add+0x12f/0xa40
[ 5827.385438][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5827.385438][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5827.385438][   T73]      netlink_rcv_skb+0x130/0x360
[ 5827.385438][   T73]      netlink_unicast+0x449/0x710
[ 5827.385438][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5827.385438][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5827.385438][   T73]      ___sys_sendmsg+0xee/0x170
[ 5827.385438][   T73]      __sys_sendmsg+0xcd/0x170
[ 5827.385438][   T73]      do_syscall_64+0xc6/0x1e0
[ 5827.385438][   T73] 
[ 5827.387567][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5827.387567][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5827.387567][   T73]      ipv6_find_idev+0x102/0x170
[ 5827.387567][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5827.387567][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5827.387567][   T73]      netlink_rcv_skb+0x130/0x360
[ 5827.387567][   T73]      netlink_unicast+0x449/0x710
[ 5827.387567][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5827.387567][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5827.387567][   T73]      ___sys_sendmsg+0xee/0x170
[ 5827.387567][   T73]      __sys_sendmsg+0xcd/0x170
[ 5827.387567][   T73]      do_syscall_64+0xc6/0x1e0
[ 5827.387567][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5827.387567][   T73] 
[ 5827.389206][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5827.389206][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5827.389206][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5827.389206][   T73]      ipv6_find_idev+0x102/0x170
[ 5827.389206][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5827.389206][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5827.389206][   T73]      netlink_rcv_skb+0x130/0x360
[ 5827.389206][   T73]      netlink_unicast+0x449/0x710
[ 5827.389206][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5827.389206][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5827.389206][   T73]      ___sys_sendmsg+0xee/0x170
[ 5827.389206][   T73]      __sys_sendmsg+0xcd/0x170
[ 5827.389206][   T73]      do_syscall_64+0xc6/0x1e0
[ 5827.389206][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5827.389206][   T73] 
[ 5827.391043][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5827.391320][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5827.391320][   T73]      netdev_get_by_index+0x5e/0x80
[ 5827.391320][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5827.391320][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5827.391320][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5827.391320][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5827.391320][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5827.391320][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5827.391320][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5827.391320][   T73]      addrconf_dad_begin+0x310/0x670
[ 5827.391320][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5827.391320][   T73]      process_one_work+0x84d/0x18a0
[ 5827.391320][   T73]      worker_thread+0x587/0xd30
[ 5827.391320][   T73]      kthread+0x28a/0x350
[ 5827.391320][   T73]      ret_from_fork+0x31/0x70
[ 5827.391320][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5827.391320][   T73] 
[ 5827.393397][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5827.393397][   T73]      netdev_get_by_index+0x5e/0x80
[ 5827.393397][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5827.393397][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5827.393397][   T73]      ip6_route_add+0x1c/0x140
[ 5827.393397][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5827.393397][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5827.393397][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5827.393397][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5827.393397][   T73]      netlink_rcv_skb+0x130/0x360
[ 5827.393397][   T73]      netlink_unicast+0x449/0x710
[ 5827.393397][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5827.393397][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5827.393397][   T73]      ___sys_sendmsg+0xee/0x170
[ 5827.393397][   T73]      __sys_sendmsg+0xcd/0x170
[ 5827.393397][   T73]      do_syscall_64+0xc6/0x1e0
[ 5827.393397][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5827.393397][   T73] 
[ 5827.395561][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5827.395561][   T73]      netdev_get_by_index+0x5e/0x80
[ 5827.395561][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5827.395561][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5827.395561][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5827.395561][   T73]      ipv6_add_addr+0x411/0x2000
[ 5827.395561][   T73]      inet6_addr_add+0x30e/0xa40
[ 5827.395561][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5827.395561][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5827.395561][   T73]      netlink_rcv_skb+0x130/0x360
[ 5827.395561][   T73]      netlink_unicast+0x449/0x710
[ 5827.395561][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5827.395561][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5827.395561][   T73]      ___sys_sendmsg+0xee/0x170
[ 5827.395561][   T73]      __sys_sendmsg+0xcd/0x170
[ 5827.395561][   T73]      do_syscall_64+0xc6/0x1e0
[ 5827.395561][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5827.395561][   T73] 
[ 5827.397728][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5827.397728][   T73]      netdev_get_by_index+0x5e/0x80
[ 5827.397728][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5827.397728][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5827.397728][   T73]      ip6_route_add+0x1c/0x140
[ 5827.397728][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5827.397728][   T73]      addrconf_add_dev+0xe2/0x170
[ 5827.397728][   T73]      inet6_addr_add+0x12f/0xa40
[ 5827.397728][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5827.397728][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5827.397728][   T73]      netlink_rcv_skb+0x130/0x360
[ 5827.397728][   T73]      netlink_unicast+0x449/0x710
[ 5827.397728][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5827.397728][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5827.397728][   T73]      ___sys_sendmsg+0xee/0x170
[ 5827.397728][   T73]      __sys_sendmsg+0xcd/0x170
[ 5827.397728][   T73]      do_syscall_64+0xc6/0x1e0
[ 5827.397728][   T73] 
[ 5827.399775][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5827.399775][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5827.399775][   T73]      ipv6_find_idev+0x102/0x170
[ 5827.399775][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5827.399775][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5827.399775][   T73]      netlink_rcv_skb+0x130/0x360
[ 5827.399775][   T73]      netlink_unicast+0x449/0x710
[ 5827.399775][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5827.399775][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5827.399775][   T73]      ___sys_sendmsg+0xee/0x170
[ 5827.399775][   T73]      __sys_sendmsg+0xcd/0x170
[ 5827.399775][   T73]      do_syscall_64+0xc6/0x1e0
[ 5827.399775][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5827.399775][   T73] 
[ 5827.401469][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5827.401469][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5827.401469][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5827.401469][   T73]      ipv6_find_idev+0x102/0x170
[ 5827.401469][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5827.401469][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5827.401469][   T73]      netlink_rcv_skb+0x130/0x360
[ 5827.401469][   T73]      netlink_unicast+0x449/0x710
[ 5827.401469][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5827.401469][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5827.401469][   T73]      ___sys_sendmsg+0xee/0x170
[ 5827.401469][   T73]      __sys_sendmsg+0xcd/0x170
[ 5827.401469][   T73]      do_syscall_64+0xc6/0x1e0
[ 5827.401469][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5827.401469][   T73] 
[ 5837.639790][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5837.640250][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5837.640250][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5837.640250][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5837.640250][   T73]      fib6_nh_init+0xa22/0x1580
[ 5837.640250][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5837.640250][   T73]      ip6_route_add+0x1c/0x140
[ 5837.640250][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5837.640250][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5837.640250][   T73]      netlink_rcv_skb+0x130/0x360
[ 5837.640250][   T73]      netlink_unicast+0x449/0x710
[ 5837.640250][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5837.640250][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5837.640250][   T73]      ___sys_sendmsg+0xee/0x170
[ 5837.640250][   T73]      __sys_sendmsg+0xcd/0x170
[ 5837.640250][   T73]      do_syscall_64+0xc6/0x1e0
[ 5837.640250][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5837.640250][   T73] 
[ 5837.642151][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5837.642151][   T73]      dst_init+0x84/0x4a0
[ 5837.642151][   T73]      dst_alloc+0x97/0x150
[ 5837.642151][   T73]      ip6_dst_alloc+0x23/0x90
[ 5837.642151][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5837.642151][   T73]      ip6_pol_route+0x56f/0x840
[ 5837.642151][   T73]      fib6_rule_lookup+0x456/0x630
[ 5837.642151][   T73]      ip6_route_input+0x59c/0xa50
[ 5837.642151][   T73]      ipv6_rcv+0x397/0x810
[ 5837.642151][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5837.642151][   T73]      process_backlog+0x101/0x620
[ 5837.642151][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5837.642151][   T73]      net_rx_action+0x495/0xbe0
[ 5837.642151][   T73]      __do_softirq+0x1b5/0x7f6
[ 5837.642151][   T73] 
[ 5837.643793][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5837.643793][   T73]      netdev_get_by_index+0x5e/0x80
[ 5837.643793][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5837.643793][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5837.643793][   T73]      ip6_route_add+0x1c/0x140
[ 5837.643793][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5837.643793][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5837.643793][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5837.643793][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5837.643793][   T73]      netlink_rcv_skb+0x130/0x360
[ 5837.643793][   T73]      netlink_unicast+0x449/0x710
[ 5837.643793][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5837.643793][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5837.643793][   T73]      ___sys_sendmsg+0xee/0x170
[ 5837.643793][   T73]      __sys_sendmsg+0xcd/0x170
[ 5837.643793][   T73]      do_syscall_64+0xc6/0x1e0
[ 5837.643793][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5837.643793][   T73] 
[ 5837.645793][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5837.645793][   T73]      netdev_get_by_index+0x5e/0x80
[ 5837.645793][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5837.645793][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5837.645793][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5837.645793][   T73]      ipv6_add_addr+0x411/0x2000
[ 5837.645793][   T73]      inet6_addr_add+0x30e/0xa40
[ 5837.645793][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5837.645793][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5837.645793][   T73]      netlink_rcv_skb+0x130/0x360
[ 5837.645793][   T73]      netlink_unicast+0x449/0x710
[ 5837.645793][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5837.645793][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5837.645793][   T73]      ___sys_sendmsg+0xee/0x170
[ 5837.645793][   T73]      __sys_sendmsg+0xcd/0x170
[ 5837.645793][   T73]      do_syscall_64+0xc6/0x1e0
[ 5837.645793][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5837.645793][   T73] 
[ 5837.647793][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5837.647793][   T73]      netdev_get_by_index+0x5e/0x80
[ 5837.647793][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5837.647793][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5837.647793][   T73]      ip6_route_add+0x1c/0x140
[ 5837.647793][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5837.647793][   T73]      addrconf_add_dev+0xe2/0x170
[ 5837.647793][   T73]      inet6_addr_add+0x12f/0xa40
[ 5837.647793][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5837.647793][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5837.647793][   T73]      netlink_rcv_skb+0x130/0x360
[ 5837.647793][   T73]      netlink_unicast+0x449/0x710
[ 5837.647793][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5837.647793][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5837.647793][   T73]      ___sys_sendmsg+0xee/0x170
[ 5837.647793][   T73]      __sys_sendmsg+0xcd/0x170
[ 5837.647793][   T73]      do_syscall_64+0xc6/0x1e0
[ 5837.647793][   T73] 
[ 5837.649752][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5837.649752][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5837.649752][   T73]      ipv6_find_idev+0x102/0x170
[ 5837.649752][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5837.649752][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5837.649752][   T73]      netlink_rcv_skb+0x130/0x360
[ 5837.649752][   T73]      netlink_unicast+0x449/0x710
[ 5837.649752][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5837.649752][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5837.649752][   T73]      ___sys_sendmsg+0xee/0x170
[ 5837.649752][   T73]      __sys_sendmsg+0xcd/0x170
[ 5837.649752][   T73]      do_syscall_64+0xc6/0x1e0
[ 5837.649752][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5837.649752][   T73] 
[ 5837.651279][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5837.651279][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5837.651279][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5837.651279][   T73]      ipv6_find_idev+0x102/0x170
[ 5837.651279][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5837.651279][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5837.651279][   T73]      netlink_rcv_skb+0x130/0x360
[ 5837.651279][   T73]      netlink_unicast+0x449/0x710
[ 5837.651279][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5837.651279][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5837.651279][   T73]      ___sys_sendmsg+0xee/0x170
[ 5837.651279][   T73]      __sys_sendmsg+0xcd/0x170
[ 5837.651279][   T73]      do_syscall_64+0xc6/0x1e0
[ 5837.651279][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5837.651279][   T73] 
[ 5837.652953][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5837.653229][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5837.653229][   T73]      netdev_get_by_index+0x5e/0x80
[ 5837.653229][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5837.653229][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5837.653229][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5837.653229][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5837.653229][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5837.653229][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5837.653229][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5837.653229][   T73]      addrconf_dad_begin+0x310/0x670
[ 5837.653229][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5837.653229][   T73]      process_one_work+0x84d/0x18a0
[ 5837.653229][   T73]      worker_thread+0x587/0xd30
[ 5837.653229][   T73]      kthread+0x28a/0x350
[ 5837.653229][   T73]      ret_from_fork+0x31/0x70
[ 5837.653229][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5837.653229][   T73] 
[ 5837.655126][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5837.655126][   T73]      netdev_get_by_index+0x5e/0x80
[ 5837.655126][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5837.655126][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5837.655126][   T73]      ip6_route_add+0x1c/0x140
[ 5837.655126][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5837.655126][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5837.655126][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5837.655126][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5837.655126][   T73]      netlink_rcv_skb+0x130/0x360
[ 5837.655126][   T73]      netlink_unicast+0x449/0x710
[ 5837.655126][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5837.655126][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5837.655126][   T73]      ___sys_sendmsg+0xee/0x170
[ 5837.655126][   T73]      __sys_sendmsg+0xcd/0x170
[ 5837.655126][   T73]      do_syscall_64+0xc6/0x1e0
[ 5837.655126][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5837.655126][   T73] 
[ 5837.659196][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5837.659196][   T73]      netdev_get_by_index+0x5e/0x80
[ 5837.659196][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5837.659196][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5837.659196][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5837.659196][   T73]      ipv6_add_addr+0x411/0x2000
[ 5837.659196][   T73]      inet6_addr_add+0x30e/0xa40
[ 5837.659196][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5837.659196][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5837.659196][   T73]      netlink_rcv_skb+0x130/0x360
[ 5837.659196][   T73]      netlink_unicast+0x449/0x710
[ 5837.659196][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5837.659196][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5837.659196][   T73]      ___sys_sendmsg+0xee/0x170
[ 5837.659196][   T73]      __sys_sendmsg+0xcd/0x170
[ 5837.659196][   T73]      do_syscall_64+0xc6/0x1e0
[ 5837.659196][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5837.659196][   T73] 
[ 5837.661207][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5837.661207][   T73]      netdev_get_by_index+0x5e/0x80
[ 5837.661207][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5837.661207][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5837.661207][   T73]      ip6_route_add+0x1c/0x140
[ 5837.661207][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5837.661207][   T73]      addrconf_add_dev+0xe2/0x170
[ 5837.661207][   T73]      inet6_addr_add+0x12f/0xa40
[ 5837.661207][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5837.661207][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5837.661207][   T73]      netlink_rcv_skb+0x130/0x360
[ 5837.661207][   T73]      netlink_unicast+0x449/0x710
[ 5837.661207][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5837.661207][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5837.661207][   T73]      ___sys_sendmsg+0xee/0x170
[ 5837.661207][   T73]      __sys_sendmsg+0xcd/0x170
[ 5837.661207][   T73]      do_syscall_64+0xc6/0x1e0
[ 5837.661207][   T73] 
[ 5837.663175][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5837.663175][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5837.663175][   T73]      ipv6_find_idev+0x102/0x170
[ 5837.663175][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5837.663175][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5837.663175][   T73]      netlink_rcv_skb+0x130/0x360
[ 5837.663175][   T73]      netlink_unicast+0x449/0x710
[ 5837.663175][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5837.663175][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5837.663175][   T73]      ___sys_sendmsg+0xee/0x170
[ 5837.663175][   T73]      __sys_sendmsg+0xcd/0x170
[ 5837.663175][   T73]      do_syscall_64+0xc6/0x1e0
[ 5837.663175][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5837.663175][   T73] 
[ 5837.664715][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5837.664715][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5837.664715][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5837.664715][   T73]      ipv6_find_idev+0x102/0x170
[ 5837.664715][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5837.664715][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5837.664715][   T73]      netlink_rcv_skb+0x130/0x360
[ 5837.664715][   T73]      netlink_unicast+0x449/0x710
[ 5837.664715][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5837.664715][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5837.664715][   T73]      ___sys_sendmsg+0xee/0x170
[ 5837.664715][   T73]      __sys_sendmsg+0xcd/0x170
[ 5837.664715][   T73]      do_syscall_64+0xc6/0x1e0
[ 5837.664715][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5837.664715][   T73] 
[ 5837.666419][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5837.666713][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5837.666713][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5837.666713][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5837.666713][   T73]      fib6_nh_init+0xa22/0x1580
[ 5837.666713][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5837.666713][   T73]      ip6_route_add+0x1c/0x140
[ 5837.666713][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5837.666713][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5837.666713][   T73]      netlink_rcv_skb+0x130/0x360
[ 5837.666713][   T73]      netlink_unicast+0x449/0x710
[ 5837.666713][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5837.666713][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5837.666713][   T73]      ___sys_sendmsg+0xee/0x170
[ 5837.666713][   T73]      __sys_sendmsg+0xcd/0x170
[ 5837.666713][   T73]      do_syscall_64+0xc6/0x1e0
[ 5837.666713][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5837.666713][   T73] 
[ 5837.668715][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5837.668715][   T73]      dst_init+0x84/0x4a0
[ 5837.668715][   T73]      dst_alloc+0x97/0x150
[ 5837.668715][   T73]      ip6_dst_alloc+0x23/0x90
[ 5837.668715][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5837.668715][   T73]      ip6_pol_route+0x56f/0x840
[ 5837.668715][   T73]      fib6_rule_lookup+0x456/0x630
[ 5837.668715][   T73]      ip6_route_input+0x59c/0xa50
[ 5837.668715][   T73]      ipv6_rcv+0x397/0x810
[ 5837.668715][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5837.668715][   T73]      process_backlog+0x101/0x620
[ 5837.668715][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5837.668715][   T73]      net_rx_action+0x495/0xbe0
[ 5837.668715][   T73]      __do_softirq+0x1b5/0x7f6
[ 5837.668715][   T73] 
[ 5837.670597][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5837.670597][   T73]      netdev_get_by_index+0x5e/0x80
[ 5837.670597][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5837.670597][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5837.670597][   T73]      ip6_route_add+0x1c/0x140
[ 5837.670597][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5837.670597][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5837.670597][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5837.670597][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5837.670597][   T73]      netlink_rcv_skb+0x130/0x360
[ 5837.670597][   T73]      netlink_unicast+0x449/0x710
[ 5837.670597][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5837.670597][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5837.670597][   T73]      ___sys_sendmsg+0xee/0x170
[ 5837.670597][   T73]      __sys_sendmsg+0xcd/0x170
[ 5837.670597][   T73]      do_syscall_64+0xc6/0x1e0
[ 5837.670597][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5837.670597][   T73] 
[ 5837.672849][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5837.672849][   T73]      netdev_get_by_index+0x5e/0x80
[ 5837.672849][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5837.672849][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5837.672849][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5837.672849][   T73]      ipv6_add_addr+0x411/0x2000
[ 5837.672849][   T73]      inet6_addr_add+0x30e/0xa40
[ 5837.672849][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5837.672849][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5837.672849][   T73]      netlink_rcv_skb+0x130/0x360
[ 5837.672849][   T73]      netlink_unicast+0x449/0x710
[ 5837.672849][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5837.672849][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5837.672849][   T73]      ___sys_sendmsg+0xee/0x170
[ 5837.672849][   T73]      __sys_sendmsg+0xcd/0x170
[ 5837.672849][   T73]      do_syscall_64+0xc6/0x1e0
[ 5837.672849][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5837.672849][   T73] 
[ 5837.675129][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5837.675129][   T73]      netdev_get_by_index+0x5e/0x80
[ 5837.675129][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5837.675129][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5837.675129][   T73]      ip6_route_add+0x1c/0x140
[ 5837.675129][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5837.675129][   T73]      addrconf_add_dev+0xe2/0x170
[ 5837.675129][   T73]      inet6_addr_add+0x12f/0xa40
[ 5837.675129][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5837.675129][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5837.675129][   T73]      netlink_rcv_skb+0x130/0x360
[ 5837.675129][   T73]      netlink_unicast+0x449/0x710
[ 5837.675129][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5837.675129][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5837.675129][   T73]      ___sys_sendmsg+0xee/0x170
[ 5837.675129][   T73]      __sys_sendmsg+0xcd/0x170
[ 5837.675129][   T73]      do_syscall_64+0xc6/0x1e0
[ 5837.675129][   T73] 
[ 5837.677242][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5837.677242][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5837.677242][   T73]      ipv6_find_idev+0x102/0x170
[ 5837.677242][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5837.677242][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5837.677242][   T73]      netlink_rcv_skb+0x130/0x360
[ 5837.677242][   T73]      netlink_unicast+0x449/0x710
[ 5837.677242][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5837.677242][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5837.677242][   T73]      ___sys_sendmsg+0xee/0x170
[ 5837.677242][   T73]      __sys_sendmsg+0xcd/0x170
[ 5837.677242][   T73]      do_syscall_64+0xc6/0x1e0
[ 5837.677242][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5837.677242][   T73] 
[ 5837.678978][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5837.678978][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5837.678978][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5837.678978][   T73]      ipv6_find_idev+0x102/0x170
[ 5837.678978][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5837.678978][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5837.678978][   T73]      netlink_rcv_skb+0x130/0x360
[ 5837.678978][   T73]      netlink_unicast+0x449/0x710
[ 5837.678978][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5837.678978][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5837.678978][   T73]      ___sys_sendmsg+0xee/0x170
[ 5837.678978][   T73]      __sys_sendmsg+0xcd/0x170
[ 5837.678978][   T73]      do_syscall_64+0xc6/0x1e0
[ 5837.678978][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5837.678978][   T73] 
[ 5837.680979][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5837.681248][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5837.681248][   T73]      netdev_get_by_index+0x5e/0x80
[ 5837.681248][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5837.681248][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5837.681248][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5837.681248][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5837.681248][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5837.681248][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5837.681248][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5837.681248][   T73]      addrconf_dad_begin+0x310/0x670
[ 5837.681248][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5837.681248][   T73]      process_one_work+0x84d/0x18a0
[ 5837.681248][   T73]      worker_thread+0x587/0xd30
[ 5837.681248][   T73]      kthread+0x28a/0x350
[ 5837.681248][   T73]      ret_from_fork+0x31/0x70
[ 5837.681248][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5837.681248][   T73] 
[ 5837.683425][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5837.683425][   T73]      netdev_get_by_index+0x5e/0x80
[ 5837.683425][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5837.683425][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5837.683425][   T73]      ip6_route_add+0x1c/0x140
[ 5837.683425][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5837.683425][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5837.683425][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5837.683425][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5837.683425][   T73]      netlink_rcv_skb+0x130/0x360
[ 5837.683425][   T73]      netlink_unicast+0x449/0x710
[ 5837.683425][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5837.683425][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5837.683425][   T73]      ___sys_sendmsg+0xee/0x170
[ 5837.683425][   T73]      __sys_sendmsg+0xcd/0x170
[ 5837.683425][   T73]      do_syscall_64+0xc6/0x1e0
[ 5837.683425][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5837.683425][   T73] 
[ 5837.685612][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5837.685612][   T73]      netdev_get_by_index+0x5e/0x80
[ 5837.685612][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5837.685612][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5837.685612][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5837.685612][   T73]      ipv6_add_addr+0x411/0x2000
[ 5837.685612][   T73]      inet6_addr_add+0x30e/0xa40
[ 5837.685612][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5837.685612][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5837.685612][   T73]      netlink_rcv_skb+0x130/0x360
[ 5837.685612][   T73]      netlink_unicast+0x449/0x710
[ 5837.685612][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5837.685612][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5837.685612][   T73]      ___sys_sendmsg+0xee/0x170
[ 5837.685612][   T73]      __sys_sendmsg+0xcd/0x170
[ 5837.685612][   T73]      do_syscall_64+0xc6/0x1e0
[ 5837.685612][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5837.685612][   T73] 
[ 5837.687878][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5837.687878][   T73]      netdev_get_by_index+0x5e/0x80
[ 5837.687878][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5837.687878][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5837.687878][   T73]      ip6_route_add+0x1c/0x140
[ 5837.687878][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5837.687878][   T73]      addrconf_add_dev+0xe2/0x170
[ 5837.687878][   T73]      inet6_addr_add+0x12f/0xa40
[ 5837.687878][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5837.687878][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5837.687878][   T73]      netlink_rcv_skb+0x130/0x360
[ 5837.687878][   T73]      netlink_unicast+0x449/0x710
[ 5837.687878][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5837.687878][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5837.687878][   T73]      ___sys_sendmsg+0xee/0x170
[ 5837.687878][   T73]      __sys_sendmsg+0xcd/0x170
[ 5837.687878][   T73]      do_syscall_64+0xc6/0x1e0
[ 5837.687878][   T73] 
[ 5837.690151][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5837.690151][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5837.690151][   T73]      ipv6_find_idev+0x102/0x170
[ 5837.690151][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5837.690151][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5837.690151][   T73]      netlink_rcv_skb+0x130/0x360
[ 5837.690151][   T73]      netlink_unicast+0x449/0x710
[ 5837.690151][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5837.690151][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5837.690151][   T73]      ___sys_sendmsg+0xee/0x170
[ 5837.690151][   T73]      __sys_sendmsg+0xcd/0x170
[ 5837.690151][   T73]      do_syscall_64+0xc6/0x1e0
[ 5837.690151][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5837.690151][   T73] 
[ 5837.691880][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5837.691880][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5837.691880][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5837.691880][   T73]      ipv6_find_idev+0x102/0x170
[ 5837.691880][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5837.691880][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5837.691880][   T73]      netlink_rcv_skb+0x130/0x360
[ 5837.691880][   T73]      netlink_unicast+0x449/0x710
[ 5837.691880][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5837.691880][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5837.691880][   T73]      ___sys_sendmsg+0xee/0x170
[ 5837.691880][   T73]      __sys_sendmsg+0xcd/0x170
[ 5837.691880][   T73]      do_syscall_64+0xc6/0x1e0
[ 5837.691880][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5837.691880][   T73] 
[ 5847.759777][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5847.760241][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5847.760241][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5847.760241][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5847.760241][   T73]      fib6_nh_init+0xa22/0x1580
[ 5847.760241][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5847.760241][   T73]      ip6_route_add+0x1c/0x140
[ 5847.760241][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5847.760241][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5847.760241][   T73]      netlink_rcv_skb+0x130/0x360
[ 5847.760241][   T73]      netlink_unicast+0x449/0x710
[ 5847.760241][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5847.760241][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5847.760241][   T73]      ___sys_sendmsg+0xee/0x170
[ 5847.760241][   T73]      __sys_sendmsg+0xcd/0x170
[ 5847.760241][   T73]      do_syscall_64+0xc6/0x1e0
[ 5847.760241][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5847.760241][   T73] 
[ 5847.762189][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5847.762189][   T73]      dst_init+0x84/0x4a0
[ 5847.762189][   T73]      dst_alloc+0x97/0x150
[ 5847.762189][   T73]      ip6_dst_alloc+0x23/0x90
[ 5847.762189][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5847.762189][   T73]      ip6_pol_route+0x56f/0x840
[ 5847.762189][   T73]      fib6_rule_lookup+0x456/0x630
[ 5847.762189][   T73]      ip6_route_input+0x59c/0xa50
[ 5847.762189][   T73]      ipv6_rcv+0x397/0x810
[ 5847.762189][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5847.762189][   T73]      process_backlog+0x101/0x620
[ 5847.762189][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5847.762189][   T73]      net_rx_action+0x495/0xbe0
[ 5847.762189][   T73]      __do_softirq+0x1b5/0x7f6
[ 5847.762189][   T73] 
[ 5847.763864][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5847.763864][   T73]      netdev_get_by_index+0x5e/0x80
[ 5847.763864][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5847.763864][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5847.763864][   T73]      ip6_route_add+0x1c/0x140
[ 5847.763864][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5847.763864][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5847.763864][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5847.763864][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5847.763864][   T73]      netlink_rcv_skb+0x130/0x360
[ 5847.763864][   T73]      netlink_unicast+0x449/0x710
[ 5847.763864][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5847.763864][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5847.763864][   T73]      ___sys_sendmsg+0xee/0x170
[ 5847.763864][   T73]      __sys_sendmsg+0xcd/0x170
[ 5847.763864][   T73]      do_syscall_64+0xc6/0x1e0
[ 5847.763864][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5847.763864][   T73] 
[ 5847.765893][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5847.765893][   T73]      netdev_get_by_index+0x5e/0x80
[ 5847.765893][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5847.765893][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5847.765893][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5847.765893][   T73]      ipv6_add_addr+0x411/0x2000
[ 5847.765893][   T73]      inet6_addr_add+0x30e/0xa40
[ 5847.765893][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5847.765893][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5847.765893][   T73]      netlink_rcv_skb+0x130/0x360
[ 5847.765893][   T73]      netlink_unicast+0x449/0x710
[ 5847.765893][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5847.765893][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5847.765893][   T73]      ___sys_sendmsg+0xee/0x170
[ 5847.765893][   T73]      __sys_sendmsg+0xcd/0x170
[ 5847.765893][   T73]      do_syscall_64+0xc6/0x1e0
[ 5847.765893][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5847.765893][   T73] 
[ 5847.767930][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5847.767930][   T73]      netdev_get_by_index+0x5e/0x80
[ 5847.767930][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5847.767930][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5847.767930][   T73]      ip6_route_add+0x1c/0x140
[ 5847.767930][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5847.767930][   T73]      addrconf_add_dev+0xe2/0x170
[ 5847.767930][   T73]      inet6_addr_add+0x12f/0xa40
[ 5847.767930][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5847.767930][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5847.767930][   T73]      netlink_rcv_skb+0x130/0x360
[ 5847.767930][   T73]      netlink_unicast+0x449/0x710
[ 5847.767930][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5847.767930][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5847.767930][   T73]      ___sys_sendmsg+0xee/0x170
[ 5847.767930][   T73]      __sys_sendmsg+0xcd/0x170
[ 5847.767930][   T73]      do_syscall_64+0xc6/0x1e0
[ 5847.767930][   T73] 
[ 5847.769926][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5847.769926][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5847.769926][   T73]      ipv6_find_idev+0x102/0x170
[ 5847.769926][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5847.769926][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5847.769926][   T73]      netlink_rcv_skb+0x130/0x360
[ 5847.769926][   T73]      netlink_unicast+0x449/0x710
[ 5847.769926][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5847.769926][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5847.769926][   T73]      ___sys_sendmsg+0xee/0x170
[ 5847.769926][   T73]      __sys_sendmsg+0xcd/0x170
[ 5847.769926][   T73]      do_syscall_64+0xc6/0x1e0
[ 5847.769926][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5847.769926][   T73] 
[ 5847.771487][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5847.771487][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5847.771487][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5847.771487][   T73]      ipv6_find_idev+0x102/0x170
[ 5847.771487][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5847.771487][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5847.771487][   T73]      netlink_rcv_skb+0x130/0x360
[ 5847.771487][   T73]      netlink_unicast+0x449/0x710
[ 5847.771487][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5847.771487][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5847.771487][   T73]      ___sys_sendmsg+0xee/0x170
[ 5847.771487][   T73]      __sys_sendmsg+0xcd/0x170
[ 5847.771487][   T73]      do_syscall_64+0xc6/0x1e0
[ 5847.771487][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5847.771487][   T73] 
[ 5847.773211][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5847.773492][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5847.773492][   T73]      netdev_get_by_index+0x5e/0x80
[ 5847.773492][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5847.773492][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5847.773492][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5847.773492][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5847.773492][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5847.773492][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5847.773492][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5847.773492][   T73]      addrconf_dad_begin+0x310/0x670
[ 5847.773492][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5847.773492][   T73]      process_one_work+0x84d/0x18a0
[ 5847.773492][   T73]      worker_thread+0x587/0xd30
[ 5847.773492][   T73]      kthread+0x28a/0x350
[ 5847.773492][   T73]      ret_from_fork+0x31/0x70
[ 5847.773492][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5847.773492][   T73] 
[ 5847.775425][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5847.775425][   T73]      netdev_get_by_index+0x5e/0x80
[ 5847.775425][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5847.775425][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5847.775425][   T73]      ip6_route_add+0x1c/0x140
[ 5847.775425][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5847.775425][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5847.775425][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5847.775425][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5847.775425][   T73]      netlink_rcv_skb+0x130/0x360
[ 5847.775425][   T73]      netlink_unicast+0x449/0x710
[ 5847.775425][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5847.775425][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5847.775425][   T73]      ___sys_sendmsg+0xee/0x170
[ 5847.775425][   T73]      __sys_sendmsg+0xcd/0x170
[ 5847.775425][   T73]      do_syscall_64+0xc6/0x1e0
[ 5847.775425][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5847.775425][   T73] 
[ 5847.777440][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5847.777440][   T73]      netdev_get_by_index+0x5e/0x80
[ 5847.777440][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5847.777440][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5847.777440][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5847.777440][   T73]      ipv6_add_addr+0x411/0x2000
[ 5847.777440][   T73]      inet6_addr_add+0x30e/0xa40
[ 5847.777440][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5847.777440][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5847.777440][   T73]      netlink_rcv_skb+0x130/0x360
[ 5847.777440][   T73]      netlink_unicast+0x449/0x710
[ 5847.777440][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5847.777440][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5847.777440][   T73]      ___sys_sendmsg+0xee/0x170
[ 5847.777440][   T73]      __sys_sendmsg+0xcd/0x170
[ 5847.777440][   T73]      do_syscall_64+0xc6/0x1e0
[ 5847.777440][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5847.777440][   T73] 
[ 5847.779462][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5847.779462][   T73]      netdev_get_by_index+0x5e/0x80
[ 5847.779462][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5847.779462][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5847.779462][   T73]      ip6_route_add+0x1c/0x140
[ 5847.779462][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5847.779462][   T73]      addrconf_add_dev+0xe2/0x170
[ 5847.779462][   T73]      inet6_addr_add+0x12f/0xa40
[ 5847.779462][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5847.779462][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5847.779462][   T73]      netlink_rcv_skb+0x130/0x360
[ 5847.779462][   T73]      netlink_unicast+0x449/0x710
[ 5847.779462][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5847.779462][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5847.779462][   T73]      ___sys_sendmsg+0xee/0x170
[ 5847.779462][   T73]      __sys_sendmsg+0xcd/0x170
[ 5847.779462][   T73]      do_syscall_64+0xc6/0x1e0
[ 5847.779462][   T73] 
[ 5847.781443][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5847.781443][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5847.781443][   T73]      ipv6_find_idev+0x102/0x170
[ 5847.781443][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5847.781443][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5847.781443][   T73]      netlink_rcv_skb+0x130/0x360
[ 5847.781443][   T73]      netlink_unicast+0x449/0x710
[ 5847.781443][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5847.781443][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5847.781443][   T73]      ___sys_sendmsg+0xee/0x170
[ 5847.781443][   T73]      __sys_sendmsg+0xcd/0x170
[ 5847.781443][   T73]      do_syscall_64+0xc6/0x1e0
[ 5847.781443][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5847.781443][   T73] 
[ 5847.782996][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5847.782996][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5847.782996][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5847.782996][   T73]      ipv6_find_idev+0x102/0x170
[ 5847.782996][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5847.782996][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5847.782996][   T73]      netlink_rcv_skb+0x130/0x360
[ 5847.782996][   T73]      netlink_unicast+0x449/0x710
[ 5847.782996][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5847.782996][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5847.782996][   T73]      ___sys_sendmsg+0xee/0x170
[ 5847.782996][   T73]      __sys_sendmsg+0xcd/0x170
[ 5847.782996][   T73]      do_syscall_64+0xc6/0x1e0
[ 5847.782996][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5847.782996][   T73] 
[ 5847.784711][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5847.784991][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5847.784991][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5847.784991][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5847.784991][   T73]      fib6_nh_init+0xa22/0x1580
[ 5847.784991][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5847.784991][   T73]      ip6_route_add+0x1c/0x140
[ 5847.784991][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5847.784991][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5847.784991][   T73]      netlink_rcv_skb+0x130/0x360
[ 5847.784991][   T73]      netlink_unicast+0x449/0x710
[ 5847.784991][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5847.784991][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5847.784991][   T73]      ___sys_sendmsg+0xee/0x170
[ 5847.784991][   T73]      __sys_sendmsg+0xcd/0x170
[ 5847.784991][   T73]      do_syscall_64+0xc6/0x1e0
[ 5847.784991][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5847.784991][   T73] 
[ 5847.787071][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5847.787071][   T73]      dst_init+0x84/0x4a0
[ 5847.787071][   T73]      dst_alloc+0x97/0x150
[ 5847.787071][   T73]      ip6_dst_alloc+0x23/0x90
[ 5847.787071][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5847.787071][   T73]      ip6_pol_route+0x56f/0x840
[ 5847.787071][   T73]      fib6_rule_lookup+0x456/0x630
[ 5847.787071][   T73]      ip6_route_input+0x59c/0xa50
[ 5847.787071][   T73]      ipv6_rcv+0x397/0x810
[ 5847.787071][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5847.787071][   T73]      process_backlog+0x101/0x620
[ 5847.787071][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5847.787071][   T73]      net_rx_action+0x495/0xbe0
[ 5847.787071][   T73]      __do_softirq+0x1b5/0x7f6
[ 5847.787071][   T73] 
[ 5847.788910][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5847.788910][   T73]      netdev_get_by_index+0x5e/0x80
[ 5847.788910][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5847.788910][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5847.788910][   T73]      ip6_route_add+0x1c/0x140
[ 5847.788910][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5847.788910][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5847.788910][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5847.788910][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5847.788910][   T73]      netlink_rcv_skb+0x130/0x360
[ 5847.788910][   T73]      netlink_unicast+0x449/0x710
[ 5847.788910][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5847.788910][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5847.788910][   T73]      ___sys_sendmsg+0xee/0x170
[ 5847.788910][   T73]      __sys_sendmsg+0xcd/0x170
[ 5847.788910][   T73]      do_syscall_64+0xc6/0x1e0
[ 5847.788910][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5847.788910][   T73] 
[ 5847.791179][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5847.791179][   T73]      netdev_get_by_index+0x5e/0x80
[ 5847.791179][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5847.791179][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5847.791179][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5847.791179][   T73]      ipv6_add_addr+0x411/0x2000
[ 5847.791179][   T73]      inet6_addr_add+0x30e/0xa40
[ 5847.791179][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5847.791179][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5847.791179][   T73]      netlink_rcv_skb+0x130/0x360
[ 5847.791179][   T73]      netlink_unicast+0x449/0x710
[ 5847.791179][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5847.791179][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5847.791179][   T73]      ___sys_sendmsg+0xee/0x170
[ 5847.791179][   T73]      __sys_sendmsg+0xcd/0x170
[ 5847.791179][   T73]      do_syscall_64+0xc6/0x1e0
[ 5847.791179][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5847.791179][   T73] 
[ 5847.793510][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5847.793510][   T73]      netdev_get_by_index+0x5e/0x80
[ 5847.793510][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5847.793510][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5847.793510][   T73]      ip6_route_add+0x1c/0x140
[ 5847.793510][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5847.793510][   T73]      addrconf_add_dev+0xe2/0x170
[ 5847.793510][   T73]      inet6_addr_add+0x12f/0xa40
[ 5847.793510][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5847.793510][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5847.793510][   T73]      netlink_rcv_skb+0x130/0x360
[ 5847.793510][   T73]      netlink_unicast+0x449/0x710
[ 5847.793510][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5847.793510][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5847.793510][   T73]      ___sys_sendmsg+0xee/0x170
[ 5847.793510][   T73]      __sys_sendmsg+0xcd/0x170
[ 5847.793510][   T73]      do_syscall_64+0xc6/0x1e0
[ 5847.793510][   T73] 
[ 5847.795758][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5847.795758][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5847.795758][   T73]      ipv6_find_idev+0x102/0x170
[ 5847.795758][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5847.795758][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5847.795758][   T73]      netlink_rcv_skb+0x130/0x360
[ 5847.795758][   T73]      netlink_unicast+0x449/0x710
[ 5847.795758][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5847.795758][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5847.795758][   T73]      ___sys_sendmsg+0xee/0x170
[ 5847.795758][   T73]      __sys_sendmsg+0xcd/0x170
[ 5847.795758][   T73]      do_syscall_64+0xc6/0x1e0
[ 5847.795758][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5847.795758][   T73] 
[ 5847.797506][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5847.797506][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5847.797506][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5847.797506][   T73]      ipv6_find_idev+0x102/0x170
[ 5847.797506][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5847.797506][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5847.797506][   T73]      netlink_rcv_skb+0x130/0x360
[ 5847.797506][   T73]      netlink_unicast+0x449/0x710
[ 5847.797506][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5847.797506][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5847.797506][   T73]      ___sys_sendmsg+0xee/0x170
[ 5847.797506][   T73]      __sys_sendmsg+0xcd/0x170
[ 5847.797506][   T73]      do_syscall_64+0xc6/0x1e0
[ 5847.797506][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5847.797506][   T73] 
[ 5847.799405][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5847.799694][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5847.799694][   T73]      netdev_get_by_index+0x5e/0x80
[ 5847.799694][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5847.799694][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5847.799694][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5847.799694][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5847.799694][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5847.799694][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5847.799694][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5847.799694][   T73]      addrconf_dad_begin+0x310/0x670
[ 5847.799694][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5847.799694][   T73]      process_one_work+0x84d/0x18a0
[ 5847.799694][   T73]      worker_thread+0x587/0xd30
[ 5847.799694][   T73]      kthread+0x28a/0x350
[ 5847.799694][   T73]      ret_from_fork+0x31/0x70
[ 5847.799694][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5847.799694][   T73] 
[ 5847.801870][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5847.801870][   T73]      netdev_get_by_index+0x5e/0x80
[ 5847.801870][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5847.801870][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5847.801870][   T73]      ip6_route_add+0x1c/0x140
[ 5847.801870][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5847.801870][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5847.801870][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5847.801870][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5847.801870][   T73]      netlink_rcv_skb+0x130/0x360
[ 5847.801870][   T73]      netlink_unicast+0x449/0x710
[ 5847.801870][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5847.801870][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5847.801870][   T73]      ___sys_sendmsg+0xee/0x170
[ 5847.801870][   T73]      __sys_sendmsg+0xcd/0x170
[ 5847.801870][   T73]      do_syscall_64+0xc6/0x1e0
[ 5847.801870][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5847.801870][   T73] 
[ 5847.804189][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5847.804189][   T73]      netdev_get_by_index+0x5e/0x80
[ 5847.804189][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5847.804189][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5847.804189][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5847.804189][   T73]      ipv6_add_addr+0x411/0x2000
[ 5847.804189][   T73]      inet6_addr_add+0x30e/0xa40
[ 5847.804189][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5847.804189][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5847.804189][   T73]      netlink_rcv_skb+0x130/0x360
[ 5847.804189][   T73]      netlink_unicast+0x449/0x710
[ 5847.804189][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5847.804189][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5847.804189][   T73]      ___sys_sendmsg+0xee/0x170
[ 5847.804189][   T73]      __sys_sendmsg+0xcd/0x170
[ 5847.804189][   T73]      do_syscall_64+0xc6/0x1e0
[ 5847.804189][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5847.804189][   T73] 
[ 5847.806436][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5847.806436][   T73]      netdev_get_by_index+0x5e/0x80
[ 5847.806436][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5847.806436][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5847.806436][   T73]      ip6_route_add+0x1c/0x140
[ 5847.806436][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5847.806436][   T73]      addrconf_add_dev+0xe2/0x170
[ 5847.806436][   T73]      inet6_addr_add+0x12f/0xa40
[ 5847.806436][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5847.806436][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5847.806436][   T73]      netlink_rcv_skb+0x130/0x360
[ 5847.806436][   T73]      netlink_unicast+0x449/0x710
[ 5847.806436][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5847.806436][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5847.806436][   T73]      ___sys_sendmsg+0xee/0x170
[ 5847.806436][   T73]      __sys_sendmsg+0xcd/0x170
[ 5847.806436][   T73]      do_syscall_64+0xc6/0x1e0
[ 5847.806436][   T73] 
[ 5847.808604][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5847.808604][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5847.808604][   T73]      ipv6_find_idev+0x102/0x170
[ 5847.808604][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5847.808604][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5847.808604][   T73]      netlink_rcv_skb+0x130/0x360
[ 5847.808604][   T73]      netlink_unicast+0x449/0x710
[ 5847.808604][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5847.808604][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5847.808604][   T73]      ___sys_sendmsg+0xee/0x170
[ 5847.808604][   T73]      __sys_sendmsg+0xcd/0x170
[ 5847.808604][   T73]      do_syscall_64+0xc6/0x1e0
[ 5847.808604][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5847.808604][   T73] 
[ 5847.810332][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5847.810332][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5847.810332][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5847.810332][   T73]      ipv6_find_idev+0x102/0x170
[ 5847.810332][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5847.810332][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5847.810332][   T73]      netlink_rcv_skb+0x130/0x360
[ 5847.810332][   T73]      netlink_unicast+0x449/0x710
[ 5847.810332][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5847.810332][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5847.810332][   T73]      ___sys_sendmsg+0xee/0x170
[ 5847.810332][   T73]      __sys_sendmsg+0xcd/0x170
[ 5847.810332][   T73]      do_syscall_64+0xc6/0x1e0
[ 5847.810332][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5847.810332][   T73] 
[ 5858.055756][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5858.056241][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5858.056241][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5858.056241][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5858.056241][   T73]      fib6_nh_init+0xa22/0x1580
[ 5858.056241][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5858.056241][   T73]      ip6_route_add+0x1c/0x140
[ 5858.056241][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5858.056241][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5858.056241][   T73]      netlink_rcv_skb+0x130/0x360
[ 5858.056241][   T73]      netlink_unicast+0x449/0x710
[ 5858.056241][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5858.056241][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5858.056241][   T73]      ___sys_sendmsg+0xee/0x170
[ 5858.056241][   T73]      __sys_sendmsg+0xcd/0x170
[ 5858.056241][   T73]      do_syscall_64+0xc6/0x1e0
[ 5858.056241][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5858.056241][   T73] 
[ 5858.058179][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5858.058179][   T73]      dst_init+0x84/0x4a0
[ 5858.058179][   T73]      dst_alloc+0x97/0x150
[ 5858.058179][   T73]      ip6_dst_alloc+0x23/0x90
[ 5858.058179][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5858.058179][   T73]      ip6_pol_route+0x56f/0x840
[ 5858.058179][   T73]      fib6_rule_lookup+0x456/0x630
[ 5858.058179][   T73]      ip6_route_input+0x59c/0xa50
[ 5858.058179][   T73]      ipv6_rcv+0x397/0x810
[ 5858.058179][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5858.058179][   T73]      process_backlog+0x101/0x620
[ 5858.058179][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5858.058179][   T73]      net_rx_action+0x495/0xbe0
[ 5858.058179][   T73]      __do_softirq+0x1b5/0x7f6
[ 5858.058179][   T73] 
[ 5858.059841][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5858.059841][   T73]      netdev_get_by_index+0x5e/0x80
[ 5858.059841][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5858.059841][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5858.059841][   T73]      ip6_route_add+0x1c/0x140
[ 5858.059841][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5858.059841][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5858.059841][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5858.059841][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5858.059841][   T73]      netlink_rcv_skb+0x130/0x360
[ 5858.059841][   T73]      netlink_unicast+0x449/0x710
[ 5858.059841][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5858.059841][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5858.059841][   T73]      ___sys_sendmsg+0xee/0x170
[ 5858.059841][   T73]      __sys_sendmsg+0xcd/0x170
[ 5858.059841][   T73]      do_syscall_64+0xc6/0x1e0
[ 5858.059841][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5858.059841][   T73] 
[ 5858.061855][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5858.061855][   T73]      netdev_get_by_index+0x5e/0x80
[ 5858.061855][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5858.061855][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5858.061855][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5858.061855][   T73]      ipv6_add_addr+0x411/0x2000
[ 5858.061855][   T73]      inet6_addr_add+0x30e/0xa40
[ 5858.061855][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5858.061855][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5858.061855][   T73]      netlink_rcv_skb+0x130/0x360
[ 5858.061855][   T73]      netlink_unicast+0x449/0x710
[ 5858.061855][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5858.061855][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5858.061855][   T73]      ___sys_sendmsg+0xee/0x170
[ 5858.061855][   T73]      __sys_sendmsg+0xcd/0x170
[ 5858.061855][   T73]      do_syscall_64+0xc6/0x1e0
[ 5858.061855][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5858.061855][   T73] 
[ 5858.063878][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5858.063878][   T73]      netdev_get_by_index+0x5e/0x80
[ 5858.063878][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5858.063878][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5858.063878][   T73]      ip6_route_add+0x1c/0x140
[ 5858.063878][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5858.063878][   T73]      addrconf_add_dev+0xe2/0x170
[ 5858.063878][   T73]      inet6_addr_add+0x12f/0xa40
[ 5858.063878][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5858.063878][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5858.063878][   T73]      netlink_rcv_skb+0x130/0x360
[ 5858.063878][   T73]      netlink_unicast+0x449/0x710
[ 5858.063878][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5858.063878][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5858.063878][   T73]      ___sys_sendmsg+0xee/0x170
[ 5858.063878][   T73]      __sys_sendmsg+0xcd/0x170
[ 5858.063878][   T73]      do_syscall_64+0xc6/0x1e0
[ 5858.063878][   T73] 
[ 5858.065872][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5858.065872][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5858.065872][   T73]      ipv6_find_idev+0x102/0x170
[ 5858.065872][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5858.065872][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5858.065872][   T73]      netlink_rcv_skb+0x130/0x360
[ 5858.065872][   T73]      netlink_unicast+0x449/0x710
[ 5858.065872][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5858.065872][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5858.065872][   T73]      ___sys_sendmsg+0xee/0x170
[ 5858.065872][   T73]      __sys_sendmsg+0xcd/0x170
[ 5858.065872][   T73]      do_syscall_64+0xc6/0x1e0
[ 5858.065872][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5858.065872][   T73] 
[ 5858.067422][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5858.067422][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5858.067422][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5858.067422][   T73]      ipv6_find_idev+0x102/0x170
[ 5858.067422][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5858.067422][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5858.067422][   T73]      netlink_rcv_skb+0x130/0x360
[ 5858.067422][   T73]      netlink_unicast+0x449/0x710
[ 5858.067422][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5858.067422][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5858.067422][   T73]      ___sys_sendmsg+0xee/0x170
[ 5858.067422][   T73]      __sys_sendmsg+0xcd/0x170
[ 5858.067422][   T73]      do_syscall_64+0xc6/0x1e0
[ 5858.067422][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5858.067422][   T73] 
[ 5858.069134][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5858.069414][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5858.069414][   T73]      netdev_get_by_index+0x5e/0x80
[ 5858.069414][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5858.069414][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5858.069414][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5858.069414][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5858.069414][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5858.069414][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5858.069414][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5858.069414][   T73]      addrconf_dad_begin+0x310/0x670
[ 5858.069414][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5858.069414][   T73]      process_one_work+0x84d/0x18a0
[ 5858.069414][   T73]      worker_thread+0x587/0xd30
[ 5858.069414][   T73]      kthread+0x28a/0x350
[ 5858.069414][   T73]      ret_from_fork+0x31/0x70
[ 5858.069414][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5858.069414][   T73] 
[ 5858.071340][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5858.071340][   T73]      netdev_get_by_index+0x5e/0x80
[ 5858.071340][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5858.071340][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5858.071340][   T73]      ip6_route_add+0x1c/0x140
[ 5858.071340][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5858.071340][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5858.071340][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5858.071340][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5858.071340][   T73]      netlink_rcv_skb+0x130/0x360
[ 5858.071340][   T73]      netlink_unicast+0x449/0x710
[ 5858.071340][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5858.071340][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5858.071340][   T73]      ___sys_sendmsg+0xee/0x170
[ 5858.071340][   T73]      __sys_sendmsg+0xcd/0x170
[ 5858.071340][   T73]      do_syscall_64+0xc6/0x1e0
[ 5858.071340][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5858.071340][   T73] 
[ 5858.073364][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5858.073364][   T73]      netdev_get_by_index+0x5e/0x80
[ 5858.073364][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5858.073364][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5858.073364][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5858.073364][   T73]      ipv6_add_addr+0x411/0x2000
[ 5858.073364][   T73]      inet6_addr_add+0x30e/0xa40
[ 5858.073364][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5858.073364][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5858.073364][   T73]      netlink_rcv_skb+0x130/0x360
[ 5858.073364][   T73]      netlink_unicast+0x449/0x710
[ 5858.073364][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5858.073364][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5858.073364][   T73]      ___sys_sendmsg+0xee/0x170
[ 5858.073364][   T73]      __sys_sendmsg+0xcd/0x170
[ 5858.073364][   T73]      do_syscall_64+0xc6/0x1e0
[ 5858.073364][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5858.073364][   T73] 
[ 5858.075393][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5858.075393][   T73]      netdev_get_by_index+0x5e/0x80
[ 5858.075393][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5858.075393][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5858.075393][   T73]      ip6_route_add+0x1c/0x140
[ 5858.075393][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5858.075393][   T73]      addrconf_add_dev+0xe2/0x170
[ 5858.075393][   T73]      inet6_addr_add+0x12f/0xa40
[ 5858.075393][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5858.075393][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5858.075393][   T73]      netlink_rcv_skb+0x130/0x360
[ 5858.075393][   T73]      netlink_unicast+0x449/0x710
[ 5858.075393][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5858.075393][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5858.075393][   T73]      ___sys_sendmsg+0xee/0x170
[ 5858.075393][   T73]      __sys_sendmsg+0xcd/0x170
[ 5858.075393][   T73]      do_syscall_64+0xc6/0x1e0
[ 5858.075393][   T73] 
[ 5858.077388][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5858.077388][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5858.077388][   T73]      ipv6_find_idev+0x102/0x170
[ 5858.077388][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5858.077388][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5858.077388][   T73]      netlink_rcv_skb+0x130/0x360
[ 5858.077388][   T73]      netlink_unicast+0x449/0x710
[ 5858.077388][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5858.077388][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5858.077388][   T73]      ___sys_sendmsg+0xee/0x170
[ 5858.077388][   T73]      __sys_sendmsg+0xcd/0x170
[ 5858.077388][   T73]      do_syscall_64+0xc6/0x1e0
[ 5858.077388][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5858.077388][   T73] 
[ 5858.078948][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5858.078948][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5858.078948][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5858.078948][   T73]      ipv6_find_idev+0x102/0x170
[ 5858.078948][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5858.078948][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5858.078948][   T73]      netlink_rcv_skb+0x130/0x360
[ 5858.078948][   T73]      netlink_unicast+0x449/0x710
[ 5858.078948][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5858.078948][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5858.078948][   T73]      ___sys_sendmsg+0xee/0x170
[ 5858.078948][   T73]      __sys_sendmsg+0xcd/0x170
[ 5858.078948][   T73]      do_syscall_64+0xc6/0x1e0
[ 5858.078948][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5858.078948][   T73] 
[ 5858.080686][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5858.080958][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5858.080958][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5858.080958][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5858.080958][   T73]      fib6_nh_init+0xa22/0x1580
[ 5858.080958][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5858.080958][   T73]      ip6_route_add+0x1c/0x140
[ 5858.080958][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5858.080958][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5858.080958][   T73]      netlink_rcv_skb+0x130/0x360
[ 5858.080958][   T73]      netlink_unicast+0x449/0x710
[ 5858.080958][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5858.080958][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5858.080958][   T73]      ___sys_sendmsg+0xee/0x170
[ 5858.080958][   T73]      __sys_sendmsg+0xcd/0x170
[ 5858.080958][   T73]      do_syscall_64+0xc6/0x1e0
[ 5858.080958][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5858.080958][   T73] 
[ 5858.082980][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5858.082980][   T73]      dst_init+0x84/0x4a0
[ 5858.082980][   T73]      dst_alloc+0x97/0x150
[ 5858.082980][   T73]      ip6_dst_alloc+0x23/0x90
[ 5858.082980][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5858.082980][   T73]      ip6_pol_route+0x56f/0x840
[ 5858.082980][   T73]      fib6_rule_lookup+0x456/0x630
[ 5858.082980][   T73]      ip6_route_input+0x59c/0xa50
[ 5858.082980][   T73]      ipv6_rcv+0x397/0x810
[ 5858.082980][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5858.082980][   T73]      process_backlog+0x101/0x620
[ 5858.082980][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5858.082980][   T73]      net_rx_action+0x495/0xbe0
[ 5858.082980][   T73]      __do_softirq+0x1b5/0x7f6
[ 5858.082980][   T73] 
[ 5858.084890][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5858.084890][   T73]      netdev_get_by_index+0x5e/0x80
[ 5858.084890][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5858.084890][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5858.084890][   T73]      ip6_route_add+0x1c/0x140
[ 5858.084890][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5858.084890][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5858.084890][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5858.084890][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5858.084890][   T73]      netlink_rcv_skb+0x130/0x360
[ 5858.084890][   T73]      netlink_unicast+0x449/0x710
[ 5858.084890][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5858.084890][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5858.084890][   T73]      ___sys_sendmsg+0xee/0x170
[ 5858.084890][   T73]      __sys_sendmsg+0xcd/0x170
[ 5858.084890][   T73]      do_syscall_64+0xc6/0x1e0
[ 5858.084890][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5858.084890][   T73] 
[ 5858.087151][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5858.087151][   T73]      netdev_get_by_index+0x5e/0x80
[ 5858.087151][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5858.087151][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5858.087151][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5858.087151][   T73]      ipv6_add_addr+0x411/0x2000
[ 5858.087151][   T73]      inet6_addr_add+0x30e/0xa40
[ 5858.087151][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5858.087151][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5858.087151][   T73]      netlink_rcv_skb+0x130/0x360
[ 5858.087151][   T73]      netlink_unicast+0x449/0x710
[ 5858.087151][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5858.087151][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5858.087151][   T73]      ___sys_sendmsg+0xee/0x170
[ 5858.087151][   T73]      __sys_sendmsg+0xcd/0x170
[ 5858.087151][   T73]      do_syscall_64+0xc6/0x1e0
[ 5858.087151][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5858.087151][   T73] 
[ 5858.089427][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5858.089427][   T73]      netdev_get_by_index+0x5e/0x80
[ 5858.089427][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5858.089427][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5858.089427][   T73]      ip6_route_add+0x1c/0x140
[ 5858.089427][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5858.089427][   T73]      addrconf_add_dev+0xe2/0x170
[ 5858.089427][   T73]      inet6_addr_add+0x12f/0xa40
[ 5858.089427][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5858.089427][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5858.089427][   T73]      netlink_rcv_skb+0x130/0x360
[ 5858.089427][   T73]      netlink_unicast+0x449/0x710
[ 5858.089427][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5858.089427][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5858.089427][   T73]      ___sys_sendmsg+0xee/0x170
[ 5858.089427][   T73]      __sys_sendmsg+0xcd/0x170
[ 5858.089427][   T73]      do_syscall_64+0xc6/0x1e0
[ 5858.089427][   T73] 
[ 5858.091667][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5858.091667][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5858.091667][   T73]      ipv6_find_idev+0x102/0x170
[ 5858.091667][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5858.091667][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5858.091667][   T73]      netlink_rcv_skb+0x130/0x360
[ 5858.091667][   T73]      netlink_unicast+0x449/0x710
[ 5858.091667][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5858.091667][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5858.091667][   T73]      ___sys_sendmsg+0xee/0x170
[ 5858.091667][   T73]      __sys_sendmsg+0xcd/0x170
[ 5858.091667][   T73]      do_syscall_64+0xc6/0x1e0
[ 5858.091667][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5858.091667][   T73] 
[ 5858.093475][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5858.093475][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5858.093475][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5858.093475][   T73]      ipv6_find_idev+0x102/0x170
[ 5858.093475][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5858.093475][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5858.093475][   T73]      netlink_rcv_skb+0x130/0x360
[ 5858.093475][   T73]      netlink_unicast+0x449/0x710
[ 5858.093475][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5858.093475][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5858.093475][   T73]      ___sys_sendmsg+0xee/0x170
[ 5858.093475][   T73]      __sys_sendmsg+0xcd/0x170
[ 5858.093475][   T73]      do_syscall_64+0xc6/0x1e0
[ 5858.093475][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5858.093475][   T73] 
[ 5858.095374][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5858.095661][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5858.095661][   T73]      netdev_get_by_index+0x5e/0x80
[ 5858.095661][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5858.095661][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5858.095661][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5858.095661][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5858.095661][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5858.095661][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5858.095661][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5858.095661][   T73]      addrconf_dad_begin+0x310/0x670
[ 5858.095661][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5858.095661][   T73]      process_one_work+0x84d/0x18a0
[ 5858.095661][   T73]      worker_thread+0x587/0xd30
[ 5858.095661][   T73]      kthread+0x28a/0x350
[ 5858.095661][   T73]      ret_from_fork+0x31/0x70
[ 5858.095661][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5858.095661][   T73] 
[ 5858.097845][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5858.097845][   T73]      netdev_get_by_index+0x5e/0x80
[ 5858.097845][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5858.097845][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5858.097845][   T73]      ip6_route_add+0x1c/0x140
[ 5858.097845][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5858.097845][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5858.097845][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5858.097845][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5858.097845][   T73]      netlink_rcv_skb+0x130/0x360
[ 5858.097845][   T73]      netlink_unicast+0x449/0x710
[ 5858.097845][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5858.097845][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5858.097845][   T73]      ___sys_sendmsg+0xee/0x170
[ 5858.097845][   T73]      __sys_sendmsg+0xcd/0x170
[ 5858.097845][   T73]      do_syscall_64+0xc6/0x1e0
[ 5858.097845][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5858.097845][   T73] 
[ 5858.100125][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5858.100125][   T73]      netdev_get_by_index+0x5e/0x80
[ 5858.100125][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5858.100125][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5858.100125][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5858.100125][   T73]      ipv6_add_addr+0x411/0x2000
[ 5858.100125][   T73]      inet6_addr_add+0x30e/0xa40
[ 5858.100125][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5858.100125][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5858.100125][   T73]      netlink_rcv_skb+0x130/0x360
[ 5858.100125][   T73]      netlink_unicast+0x449/0x710
[ 5858.100125][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5858.100125][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5858.100125][   T73]      ___sys_sendmsg+0xee/0x170
[ 5858.100125][   T73]      __sys_sendmsg+0xcd/0x170
[ 5858.100125][   T73]      do_syscall_64+0xc6/0x1e0
[ 5858.100125][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5858.100125][   T73] 
[ 5858.102383][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5858.102383][   T73]      netdev_get_by_index+0x5e/0x80
[ 5858.102383][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5858.102383][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5858.102383][   T73]      ip6_route_add+0x1c/0x140
[ 5858.102383][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5858.102383][   T73]      addrconf_add_dev+0xe2/0x170
[ 5858.102383][   T73]      inet6_addr_add+0x12f/0xa40
[ 5858.102383][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5858.102383][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5858.102383][   T73]      netlink_rcv_skb+0x130/0x360
[ 5858.102383][   T73]      netlink_unicast+0x449/0x710
[ 5858.102383][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5858.102383][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5858.102383][   T73]      ___sys_sendmsg+0xee/0x170
[ 5858.102383][   T73]      __sys_sendmsg+0xcd/0x170
[ 5858.102383][   T73]      do_syscall_64+0xc6/0x1e0
[ 5858.102383][   T73] 
[ 5858.104612][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5858.104612][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5858.104612][   T73]      ipv6_find_idev+0x102/0x170
[ 5858.104612][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5858.104612][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5858.104612][   T73]      netlink_rcv_skb+0x130/0x360
[ 5858.104612][   T73]      netlink_unicast+0x449/0x710
[ 5858.104612][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5858.104612][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5858.104612][   T73]      ___sys_sendmsg+0xee/0x170
[ 5858.104612][   T73]      __sys_sendmsg+0xcd/0x170
[ 5858.104612][   T73]      do_syscall_64+0xc6/0x1e0
[ 5858.104612][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5858.104612][   T73] 
[ 5858.106354][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5858.106354][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5858.106354][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5858.106354][   T73]      ipv6_find_idev+0x102/0x170
[ 5858.106354][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5858.106354][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5858.106354][   T73]      netlink_rcv_skb+0x130/0x360
[ 5858.106354][   T73]      netlink_unicast+0x449/0x710
[ 5858.106354][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5858.106354][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5858.106354][   T73]      ___sys_sendmsg+0xee/0x170
[ 5858.106354][   T73]      __sys_sendmsg+0xcd/0x170
[ 5858.106354][   T73]      do_syscall_64+0xc6/0x1e0
[ 5858.106354][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5858.106354][   T73] 
[ 5868.215763][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5868.216298][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5868.216298][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5868.216298][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5868.216298][   T73]      fib6_nh_init+0xa22/0x1580
[ 5868.216298][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5868.216298][   T73]      ip6_route_add+0x1c/0x140
[ 5868.216298][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5868.216298][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5868.216298][   T73]      netlink_rcv_skb+0x130/0x360
[ 5868.216298][   T73]      netlink_unicast+0x449/0x710
[ 5868.216298][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5868.216298][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5868.216298][   T73]      ___sys_sendmsg+0xee/0x170
[ 5868.216298][   T73]      __sys_sendmsg+0xcd/0x170
[ 5868.216298][   T73]      do_syscall_64+0xc6/0x1e0
[ 5868.216298][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5868.216298][   T73] 
[ 5868.218452][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5868.218452][   T73]      dst_init+0x84/0x4a0
[ 5868.218452][   T73]      dst_alloc+0x97/0x150
[ 5868.218452][   T73]      ip6_dst_alloc+0x23/0x90
[ 5868.218452][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5868.218452][   T73]      ip6_pol_route+0x56f/0x840
[ 5868.218452][   T73]      fib6_rule_lookup+0x456/0x630
[ 5868.218452][   T73]      ip6_route_input+0x59c/0xa50
[ 5868.218452][   T73]      ipv6_rcv+0x397/0x810
[ 5868.218452][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5868.218452][   T73]      process_backlog+0x101/0x620
[ 5868.218452][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5868.218452][   T73]      net_rx_action+0x495/0xbe0
[ 5868.218452][   T73]      __do_softirq+0x1b5/0x7f6
[ 5868.218452][   T73] 
[ 5868.220292][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5868.220292][   T73]      netdev_get_by_index+0x5e/0x80
[ 5868.220292][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5868.220292][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5868.220292][   T73]      ip6_route_add+0x1c/0x140
[ 5868.220292][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5868.220292][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5868.220292][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5868.220292][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5868.220292][   T73]      netlink_rcv_skb+0x130/0x360
[ 5868.220292][   T73]      netlink_unicast+0x449/0x710
[ 5868.220292][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5868.220292][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5868.220292][   T73]      ___sys_sendmsg+0xee/0x170
[ 5868.220292][   T73]      __sys_sendmsg+0xcd/0x170
[ 5868.220292][   T73]      do_syscall_64+0xc6/0x1e0
[ 5868.220292][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5868.220292][   T73] 
[ 5868.222550][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5868.222550][   T73]      netdev_get_by_index+0x5e/0x80
[ 5868.222550][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5868.222550][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5868.222550][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5868.222550][   T73]      ipv6_add_addr+0x411/0x2000
[ 5868.222550][   T73]      inet6_addr_add+0x30e/0xa40
[ 5868.222550][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5868.222550][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5868.222550][   T73]      netlink_rcv_skb+0x130/0x360
[ 5868.222550][   T73]      netlink_unicast+0x449/0x710
[ 5868.222550][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5868.222550][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5868.222550][   T73]      ___sys_sendmsg+0xee/0x170
[ 5868.222550][   T73]      __sys_sendmsg+0xcd/0x170
[ 5868.222550][   T73]      do_syscall_64+0xc6/0x1e0
[ 5868.222550][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5868.222550][   T73] 
[ 5868.224793][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5868.224793][   T73]      netdev_get_by_index+0x5e/0x80
[ 5868.224793][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5868.224793][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5868.224793][   T73]      ip6_route_add+0x1c/0x140
[ 5868.224793][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5868.224793][   T73]      addrconf_add_dev+0xe2/0x170
[ 5868.224793][   T73]      inet6_addr_add+0x12f/0xa40
[ 5868.224793][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5868.224793][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5868.224793][   T73]      netlink_rcv_skb+0x130/0x360
[ 5868.224793][   T73]      netlink_unicast+0x449/0x710
[ 5868.224793][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5868.224793][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5868.224793][   T73]      ___sys_sendmsg+0xee/0x170
[ 5868.224793][   T73]      __sys_sendmsg+0xcd/0x170
[ 5868.224793][   T73]      do_syscall_64+0xc6/0x1e0
[ 5868.224793][   T73] 
[ 5868.226996][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5868.226996][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5868.226996][   T73]      ipv6_find_idev+0x102/0x170
[ 5868.226996][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5868.226996][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5868.226996][   T73]      netlink_rcv_skb+0x130/0x360
[ 5868.226996][   T73]      netlink_unicast+0x449/0x710
[ 5868.226996][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5868.226996][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5868.226996][   T73]      ___sys_sendmsg+0xee/0x170
[ 5868.226996][   T73]      __sys_sendmsg+0xcd/0x170
[ 5868.226996][   T73]      do_syscall_64+0xc6/0x1e0
[ 5868.226996][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5868.226996][   T73] 
[ 5868.228745][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5868.228745][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5868.228745][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5868.228745][   T73]      ipv6_find_idev+0x102/0x170
[ 5868.228745][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5868.228745][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5868.228745][   T73]      netlink_rcv_skb+0x130/0x360
[ 5868.228745][   T73]      netlink_unicast+0x449/0x710
[ 5868.228745][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5868.228745][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5868.228745][   T73]      ___sys_sendmsg+0xee/0x170
[ 5868.228745][   T73]      __sys_sendmsg+0xcd/0x170
[ 5868.228745][   T73]      do_syscall_64+0xc6/0x1e0
[ 5868.228745][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5868.228745][   T73] 
[ 5868.230655][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5868.230964][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5868.230964][   T73]      netdev_get_by_index+0x5e/0x80
[ 5868.230964][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5868.230964][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5868.230964][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5868.230964][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5868.230964][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5868.230964][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5868.230964][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5868.230964][   T73]      addrconf_dad_begin+0x310/0x670
[ 5868.230964][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5868.230964][   T73]      process_one_work+0x84d/0x18a0
[ 5868.230964][   T73]      worker_thread+0x587/0xd30
[ 5868.230964][   T73]      kthread+0x28a/0x350
[ 5868.230964][   T73]      ret_from_fork+0x31/0x70
[ 5868.230964][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5868.230964][   T73] 
[ 5868.233116][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5868.233116][   T73]      netdev_get_by_index+0x5e/0x80
[ 5868.233116][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5868.233116][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5868.233116][   T73]      ip6_route_add+0x1c/0x140
[ 5868.233116][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5868.233116][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5868.233116][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5868.233116][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5868.233116][   T73]      netlink_rcv_skb+0x130/0x360
[ 5868.233116][   T73]      netlink_unicast+0x449/0x710
[ 5868.233116][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5868.233116][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5868.233116][   T73]      ___sys_sendmsg+0xee/0x170
[ 5868.233116][   T73]      __sys_sendmsg+0xcd/0x170
[ 5868.233116][   T73]      do_syscall_64+0xc6/0x1e0
[ 5868.233116][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5868.233116][   T73] 
[ 5868.235356][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5868.235356][   T73]      netdev_get_by_index+0x5e/0x80
[ 5868.235356][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5868.235356][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5868.235356][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5868.235356][   T73]      ipv6_add_addr+0x411/0x2000
[ 5868.235356][   T73]      inet6_addr_add+0x30e/0xa40
[ 5868.235356][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5868.235356][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5868.235356][   T73]      netlink_rcv_skb+0x130/0x360
[ 5868.235356][   T73]      netlink_unicast+0x449/0x710
[ 5868.235356][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5868.235356][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5868.235356][   T73]      ___sys_sendmsg+0xee/0x170
[ 5868.235356][   T73]      __sys_sendmsg+0xcd/0x170
[ 5868.235356][   T73]      do_syscall_64+0xc6/0x1e0
[ 5868.235356][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5868.235356][   T73] 
[ 5868.237600][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5868.237600][   T73]      netdev_get_by_index+0x5e/0x80
[ 5868.237600][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5868.237600][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5868.237600][   T73]      ip6_route_add+0x1c/0x140
[ 5868.237600][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5868.237600][   T73]      addrconf_add_dev+0xe2/0x170
[ 5868.237600][   T73]      inet6_addr_add+0x12f/0xa40
[ 5868.237600][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5868.237600][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5868.237600][   T73]      netlink_rcv_skb+0x130/0x360
[ 5868.237600][   T73]      netlink_unicast+0x449/0x710
[ 5868.237600][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5868.237600][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5868.237600][   T73]      ___sys_sendmsg+0xee/0x170
[ 5868.237600][   T73]      __sys_sendmsg+0xcd/0x170
[ 5868.237600][   T73]      do_syscall_64+0xc6/0x1e0
[ 5868.237600][   T73] 
[ 5868.239807][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5868.239807][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5868.239807][   T73]      ipv6_find_idev+0x102/0x170
[ 5868.239807][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5868.239807][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5868.239807][   T73]      netlink_rcv_skb+0x130/0x360
[ 5868.239807][   T73]      netlink_unicast+0x449/0x710
[ 5868.239807][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5868.239807][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5868.239807][   T73]      ___sys_sendmsg+0xee/0x170
[ 5868.239807][   T73]      __sys_sendmsg+0xcd/0x170
[ 5868.239807][   T73]      do_syscall_64+0xc6/0x1e0
[ 5868.239807][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5868.239807][   T73] 
[ 5868.241548][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5868.241548][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5868.241548][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5868.241548][   T73]      ipv6_find_idev+0x102/0x170
[ 5868.241548][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5868.241548][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5868.241548][   T73]      netlink_rcv_skb+0x130/0x360
[ 5868.241548][   T73]      netlink_unicast+0x449/0x710
[ 5868.241548][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5868.241548][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5868.241548][   T73]      ___sys_sendmsg+0xee/0x170
[ 5868.241548][   T73]      __sys_sendmsg+0xcd/0x170
[ 5868.241548][   T73]      do_syscall_64+0xc6/0x1e0
[ 5868.241548][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5868.241548][   T73] 
[ 5868.243436][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5868.243735][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5868.243735][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5868.243735][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5868.243735][   T73]      fib6_nh_init+0xa22/0x1580
[ 5868.243735][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5868.243735][   T73]      ip6_route_add+0x1c/0x140
[ 5868.243735][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5868.243735][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5868.243735][   T73]      netlink_rcv_skb+0x130/0x360
[ 5868.243735][   T73]      netlink_unicast+0x449/0x710
[ 5868.243735][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5868.243735][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5868.243735][   T73]      ___sys_sendmsg+0xee/0x170
[ 5868.243735][   T73]      __sys_sendmsg+0xcd/0x170
[ 5868.243735][   T73]      do_syscall_64+0xc6/0x1e0
[ 5868.243735][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5868.243735][   T73] 
[ 5868.246031][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5868.246031][   T73]      dst_init+0x84/0x4a0
[ 5868.246031][   T73]      dst_alloc+0x97/0x150
[ 5868.246031][   T73]      ip6_dst_alloc+0x23/0x90
[ 5868.246031][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5868.246031][   T73]      ip6_pol_route+0x56f/0x840
[ 5868.246031][   T73]      fib6_rule_lookup+0x456/0x630
[ 5868.246031][   T73]      ip6_route_input+0x59c/0xa50
[ 5868.246031][   T73]      ipv6_rcv+0x397/0x810
[ 5868.246031][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5868.246031][   T73]      process_backlog+0x101/0x620
[ 5868.246031][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5868.246031][   T73]      net_rx_action+0x495/0xbe0
[ 5868.246031][   T73]      __do_softirq+0x1b5/0x7f6
[ 5868.246031][   T73] 
[ 5868.248134][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5868.248134][   T73]      netdev_get_by_index+0x5e/0x80
[ 5868.248134][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5868.248134][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5868.248134][   T73]      ip6_route_add+0x1c/0x140
[ 5868.248134][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5868.248134][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5868.248134][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5868.248134][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5868.248134][   T73]      netlink_rcv_skb+0x130/0x360
[ 5868.248134][   T73]      netlink_unicast+0x449/0x710
[ 5868.248134][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5868.248134][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5868.248134][   T73]      ___sys_sendmsg+0xee/0x170
[ 5868.248134][   T73]      __sys_sendmsg+0xcd/0x170
[ 5868.248134][   T73]      do_syscall_64+0xc6/0x1e0
[ 5868.248134][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5868.248134][   T73] 
[ 5868.250622][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5868.250622][   T73]      netdev_get_by_index+0x5e/0x80
[ 5868.250622][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5868.250622][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5868.250622][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5868.250622][   T73]      ipv6_add_addr+0x411/0x2000
[ 5868.250622][   T73]      inet6_addr_add+0x30e/0xa40
[ 5868.250622][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5868.250622][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5868.250622][   T73]      netlink_rcv_skb+0x130/0x360
[ 5868.250622][   T73]      netlink_unicast+0x449/0x710
[ 5868.250622][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5868.250622][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5868.250622][   T73]      ___sys_sendmsg+0xee/0x170
[ 5868.250622][   T73]      __sys_sendmsg+0xcd/0x170
[ 5868.250622][   T73]      do_syscall_64+0xc6/0x1e0
[ 5868.250622][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5868.250622][   T73] 
[ 5868.253049][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5868.253049][   T73]      netdev_get_by_index+0x5e/0x80
[ 5868.253049][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5868.253049][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5868.253049][   T73]      ip6_route_add+0x1c/0x140
[ 5868.253049][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5868.253049][   T73]      addrconf_add_dev+0xe2/0x170
[ 5868.253049][   T73]      inet6_addr_add+0x12f/0xa40
[ 5868.253049][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5868.253049][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5868.253049][   T73]      netlink_rcv_skb+0x130/0x360
[ 5868.253049][   T73]      netlink_unicast+0x449/0x710
[ 5868.253049][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5868.253049][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5868.253049][   T73]      ___sys_sendmsg+0xee/0x170
[ 5868.253049][   T73]      __sys_sendmsg+0xcd/0x170
[ 5868.253049][   T73]      do_syscall_64+0xc6/0x1e0
[ 5868.253049][   T73] 
[ 5868.255504][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5868.255504][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5868.255504][   T73]      ipv6_find_idev+0x102/0x170
[ 5868.255504][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5868.255504][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5868.255504][   T73]      netlink_rcv_skb+0x130/0x360
[ 5868.255504][   T73]      netlink_unicast+0x449/0x710
[ 5868.255504][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5868.255504][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5868.255504][   T73]      ___sys_sendmsg+0xee/0x170
[ 5868.255504][   T73]      __sys_sendmsg+0xcd/0x170
[ 5868.255504][   T73]      do_syscall_64+0xc6/0x1e0
[ 5868.255504][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5868.255504][   T73] 
[ 5868.257479][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5868.257479][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5868.257479][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5868.257479][   T73]      ipv6_find_idev+0x102/0x170
[ 5868.257479][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5868.257479][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5868.257479][   T73]      netlink_rcv_skb+0x130/0x360
[ 5868.257479][   T73]      netlink_unicast+0x449/0x710
[ 5868.257479][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5868.257479][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5868.257479][   T73]      ___sys_sendmsg+0xee/0x170
[ 5868.257479][   T73]      __sys_sendmsg+0xcd/0x170
[ 5868.257479][   T73]      do_syscall_64+0xc6/0x1e0
[ 5868.257479][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5868.257479][   T73] 
[ 5868.259554][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5868.260371][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5868.260371][   T73]      netdev_get_by_index+0x5e/0x80
[ 5868.260371][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5868.260371][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5868.260371][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5868.260371][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5868.260371][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5868.260371][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5868.260371][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5868.260371][   T73]      addrconf_dad_begin+0x310/0x670
[ 5868.260371][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5868.260371][   T73]      process_one_work+0x84d/0x18a0
[ 5868.260371][   T73]      worker_thread+0x587/0xd30
[ 5868.260371][   T73]      kthread+0x28a/0x350
[ 5868.260371][   T73]      ret_from_fork+0x31/0x70
[ 5868.260371][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5868.260371][   T73] 
[ 5868.262508][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5868.262508][   T73]      netdev_get_by_index+0x5e/0x80
[ 5868.262508][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5868.262508][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5868.262508][   T73]      ip6_route_add+0x1c/0x140
[ 5868.262508][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5868.262508][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5868.262508][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5868.262508][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5868.262508][   T73]      netlink_rcv_skb+0x130/0x360
[ 5868.262508][   T73]      netlink_unicast+0x449/0x710
[ 5868.262508][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5868.262508][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5868.262508][   T73]      ___sys_sendmsg+0xee/0x170
[ 5868.262508][   T73]      __sys_sendmsg+0xcd/0x170
[ 5868.262508][   T73]      do_syscall_64+0xc6/0x1e0
[ 5868.262508][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5868.262508][   T73] 
[ 5868.264736][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5868.264736][   T73]      netdev_get_by_index+0x5e/0x80
[ 5868.264736][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5868.264736][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5868.264736][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5868.264736][   T73]      ipv6_add_addr+0x411/0x2000
[ 5868.264736][   T73]      inet6_addr_add+0x30e/0xa40
[ 5868.264736][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5868.264736][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5868.264736][   T73]      netlink_rcv_skb+0x130/0x360
[ 5868.264736][   T73]      netlink_unicast+0x449/0x710
[ 5868.264736][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5868.264736][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5868.264736][   T73]      ___sys_sendmsg+0xee/0x170
[ 5868.264736][   T73]      __sys_sendmsg+0xcd/0x170
[ 5868.264736][   T73]      do_syscall_64+0xc6/0x1e0
[ 5868.264736][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5868.264736][   T73] 
[ 5868.267235][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5868.267235][   T73]      netdev_get_by_index+0x5e/0x80
[ 5868.267235][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5868.267235][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5868.267235][   T73]      ip6_route_add+0x1c/0x140
[ 5868.267235][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5868.267235][   T73]      addrconf_add_dev+0xe2/0x170
[ 5868.267235][   T73]      inet6_addr_add+0x12f/0xa40
[ 5868.267235][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5868.267235][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5868.267235][   T73]      netlink_rcv_skb+0x130/0x360
[ 5868.267235][   T73]      netlink_unicast+0x449/0x710
[ 5868.267235][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5868.267235][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5868.267235][   T73]      ___sys_sendmsg+0xee/0x170
[ 5868.267235][   T73]      __sys_sendmsg+0xcd/0x170
[ 5868.267235][   T73]      do_syscall_64+0xc6/0x1e0
[ 5868.267235][   T73] 
[ 5868.269688][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5868.269688][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5868.269688][   T73]      ipv6_find_idev+0x102/0x170
[ 5868.269688][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5868.269688][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5868.269688][   T73]      netlink_rcv_skb+0x130/0x360
[ 5868.269688][   T73]      netlink_unicast+0x449/0x710
[ 5868.269688][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5868.269688][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5868.269688][   T73]      ___sys_sendmsg+0xee/0x170
[ 5868.269688][   T73]      __sys_sendmsg+0xcd/0x170
[ 5868.269688][   T73]      do_syscall_64+0xc6/0x1e0
[ 5868.269688][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5868.269688][   T73] 
[ 5868.271661][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5868.271661][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5868.271661][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5868.271661][   T73]      ipv6_find_idev+0x102/0x170
[ 5868.271661][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5868.271661][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5868.271661][   T73]      netlink_rcv_skb+0x130/0x360
[ 5868.271661][   T73]      netlink_unicast+0x449/0x710
[ 5868.271661][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5868.271661][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5868.271661][   T73]      ___sys_sendmsg+0xee/0x170
[ 5868.271661][   T73]      __sys_sendmsg+0xcd/0x170
[ 5868.271661][   T73]      do_syscall_64+0xc6/0x1e0
[ 5868.271661][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5868.271661][   T73] 
[ 5878.311755][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5878.312277][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5878.312277][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5878.312277][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5878.312277][   T73]      fib6_nh_init+0xa22/0x1580
[ 5878.312277][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5878.312277][   T73]      ip6_route_add+0x1c/0x140
[ 5878.312277][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5878.312277][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5878.312277][   T73]      netlink_rcv_skb+0x130/0x360
[ 5878.312277][   T73]      netlink_unicast+0x449/0x710
[ 5878.312277][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5878.312277][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5878.312277][   T73]      ___sys_sendmsg+0xee/0x170
[ 5878.312277][   T73]      __sys_sendmsg+0xcd/0x170
[ 5878.312277][   T73]      do_syscall_64+0xc6/0x1e0
[ 5878.312277][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5878.312277][   T73] 
[ 5878.314384][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5878.314384][   T73]      dst_init+0x84/0x4a0
[ 5878.314384][   T73]      dst_alloc+0x97/0x150
[ 5878.314384][   T73]      ip6_dst_alloc+0x23/0x90
[ 5878.314384][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5878.314384][   T73]      ip6_pol_route+0x56f/0x840
[ 5878.314384][   T73]      fib6_rule_lookup+0x456/0x630
[ 5878.314384][   T73]      ip6_route_input+0x59c/0xa50
[ 5878.314384][   T73]      ipv6_rcv+0x397/0x810
[ 5878.314384][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5878.314384][   T73]      process_backlog+0x101/0x620
[ 5878.314384][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5878.314384][   T73]      net_rx_action+0x495/0xbe0
[ 5878.314384][   T73]      __do_softirq+0x1b5/0x7f6
[ 5878.314384][   T73] 
[ 5878.316227][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5878.316227][   T73]      netdev_get_by_index+0x5e/0x80
[ 5878.316227][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5878.316227][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5878.316227][   T73]      ip6_route_add+0x1c/0x140
[ 5878.316227][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5878.316227][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5878.316227][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5878.316227][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5878.316227][   T73]      netlink_rcv_skb+0x130/0x360
[ 5878.316227][   T73]      netlink_unicast+0x449/0x710
[ 5878.316227][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5878.316227][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5878.316227][   T73]      ___sys_sendmsg+0xee/0x170
[ 5878.316227][   T73]      __sys_sendmsg+0xcd/0x170
[ 5878.316227][   T73]      do_syscall_64+0xc6/0x1e0
[ 5878.316227][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5878.316227][   T73] 
[ 5878.318467][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5878.318467][   T73]      netdev_get_by_index+0x5e/0x80
[ 5878.318467][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5878.318467][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5878.318467][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5878.318467][   T73]      ipv6_add_addr+0x411/0x2000
[ 5878.318467][   T73]      inet6_addr_add+0x30e/0xa40
[ 5878.318467][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5878.318467][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5878.318467][   T73]      netlink_rcv_skb+0x130/0x360
[ 5878.318467][   T73]      netlink_unicast+0x449/0x710
[ 5878.318467][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5878.318467][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5878.318467][   T73]      ___sys_sendmsg+0xee/0x170
[ 5878.318467][   T73]      __sys_sendmsg+0xcd/0x170
[ 5878.318467][   T73]      do_syscall_64+0xc6/0x1e0
[ 5878.318467][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5878.318467][   T73] 
[ 5878.320714][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5878.320714][   T73]      netdev_get_by_index+0x5e/0x80
[ 5878.320714][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5878.320714][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5878.320714][   T73]      ip6_route_add+0x1c/0x140
[ 5878.320714][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5878.320714][   T73]      addrconf_add_dev+0xe2/0x170
[ 5878.320714][   T73]      inet6_addr_add+0x12f/0xa40
[ 5878.320714][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5878.320714][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5878.320714][   T73]      netlink_rcv_skb+0x130/0x360
[ 5878.320714][   T73]      netlink_unicast+0x449/0x710
[ 5878.320714][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5878.320714][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5878.320714][   T73]      ___sys_sendmsg+0xee/0x170
[ 5878.320714][   T73]      __sys_sendmsg+0xcd/0x170
[ 5878.320714][   T73]      do_syscall_64+0xc6/0x1e0
[ 5878.320714][   T73] 
[ 5878.322999][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5878.322999][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5878.322999][   T73]      ipv6_find_idev+0x102/0x170
[ 5878.322999][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5878.322999][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5878.322999][   T73]      netlink_rcv_skb+0x130/0x360
[ 5878.322999][   T73]      netlink_unicast+0x449/0x710
[ 5878.322999][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5878.322999][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5878.322999][   T73]      ___sys_sendmsg+0xee/0x170
[ 5878.322999][   T73]      __sys_sendmsg+0xcd/0x170
[ 5878.322999][   T73]      do_syscall_64+0xc6/0x1e0
[ 5878.322999][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5878.322999][   T73] 
[ 5878.324729][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5878.324729][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5878.324729][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5878.324729][   T73]      ipv6_find_idev+0x102/0x170
[ 5878.324729][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5878.324729][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5878.324729][   T73]      netlink_rcv_skb+0x130/0x360
[ 5878.324729][   T73]      netlink_unicast+0x449/0x710
[ 5878.324729][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5878.324729][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5878.324729][   T73]      ___sys_sendmsg+0xee/0x170
[ 5878.324729][   T73]      __sys_sendmsg+0xcd/0x170
[ 5878.324729][   T73]      do_syscall_64+0xc6/0x1e0
[ 5878.324729][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5878.324729][   T73] 
[ 5878.326631][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5878.327517][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5878.327517][   T73]      netdev_get_by_index+0x5e/0x80
[ 5878.327517][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5878.327517][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5878.327517][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5878.327517][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5878.327517][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5878.327517][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5878.327517][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5878.327517][   T73]      addrconf_dad_begin+0x310/0x670
[ 5878.327517][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5878.327517][   T73]      process_one_work+0x84d/0x18a0
[ 5878.327517][   T73]      worker_thread+0x587/0xd30
[ 5878.327517][   T73]      kthread+0x28a/0x350
[ 5878.327517][   T73]      ret_from_fork+0x31/0x70
[ 5878.327517][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5878.327517][   T73] 
[ 5878.329659][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5878.329659][   T73]      netdev_get_by_index+0x5e/0x80
[ 5878.329659][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5878.329659][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5878.329659][   T73]      ip6_route_add+0x1c/0x140
[ 5878.329659][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5878.329659][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5878.329659][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5878.329659][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5878.329659][   T73]      netlink_rcv_skb+0x130/0x360
[ 5878.329659][   T73]      netlink_unicast+0x449/0x710
[ 5878.329659][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5878.329659][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5878.329659][   T73]      ___sys_sendmsg+0xee/0x170
[ 5878.329659][   T73]      __sys_sendmsg+0xcd/0x170
[ 5878.329659][   T73]      do_syscall_64+0xc6/0x1e0
[ 5878.329659][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5878.329659][   T73] 
[ 5878.331911][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5878.331911][   T73]      netdev_get_by_index+0x5e/0x80
[ 5878.331911][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5878.331911][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5878.331911][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5878.331911][   T73]      ipv6_add_addr+0x411/0x2000
[ 5878.331911][   T73]      inet6_addr_add+0x30e/0xa40
[ 5878.331911][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5878.331911][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5878.331911][   T73]      netlink_rcv_skb+0x130/0x360
[ 5878.331911][   T73]      netlink_unicast+0x449/0x710
[ 5878.331911][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5878.331911][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5878.331911][   T73]      ___sys_sendmsg+0xee/0x170
[ 5878.331911][   T73]      __sys_sendmsg+0xcd/0x170
[ 5878.331911][   T73]      do_syscall_64+0xc6/0x1e0
[ 5878.331911][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5878.331911][   T73] 
[ 5878.334157][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5878.334157][   T73]      netdev_get_by_index+0x5e/0x80
[ 5878.334157][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5878.334157][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5878.334157][   T73]      ip6_route_add+0x1c/0x140
[ 5878.334157][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5878.334157][   T73]      addrconf_add_dev+0xe2/0x170
[ 5878.334157][   T73]      inet6_addr_add+0x12f/0xa40
[ 5878.334157][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5878.334157][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5878.334157][   T73]      netlink_rcv_skb+0x130/0x360
[ 5878.334157][   T73]      netlink_unicast+0x449/0x710
[ 5878.334157][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5878.334157][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5878.334157][   T73]      ___sys_sendmsg+0xee/0x170
[ 5878.334157][   T73]      __sys_sendmsg+0xcd/0x170
[ 5878.334157][   T73]      do_syscall_64+0xc6/0x1e0
[ 5878.334157][   T73] 
[ 5878.336368][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5878.336368][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5878.336368][   T73]      ipv6_find_idev+0x102/0x170
[ 5878.336368][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5878.336368][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5878.336368][   T73]      netlink_rcv_skb+0x130/0x360
[ 5878.336368][   T73]      netlink_unicast+0x449/0x710
[ 5878.336368][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5878.336368][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5878.336368][   T73]      ___sys_sendmsg+0xee/0x170
[ 5878.336368][   T73]      __sys_sendmsg+0xcd/0x170
[ 5878.336368][   T73]      do_syscall_64+0xc6/0x1e0
[ 5878.336368][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5878.336368][   T73] 
[ 5878.338473][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5878.338473][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5878.338473][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5878.338473][   T73]      ipv6_find_idev+0x102/0x170
[ 5878.338473][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5878.338473][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5878.338473][   T73]      netlink_rcv_skb+0x130/0x360
[ 5878.338473][   T73]      netlink_unicast+0x449/0x710
[ 5878.338473][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5878.338473][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5878.338473][   T73]      ___sys_sendmsg+0xee/0x170
[ 5878.338473][   T73]      __sys_sendmsg+0xcd/0x170
[ 5878.338473][   T73]      do_syscall_64+0xc6/0x1e0
[ 5878.338473][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5878.338473][   T73] 
[ 5878.340371][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5878.340689][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5878.340689][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5878.340689][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5878.340689][   T73]      fib6_nh_init+0xa22/0x1580
[ 5878.340689][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5878.340689][   T73]      ip6_route_add+0x1c/0x140
[ 5878.340689][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5878.340689][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5878.340689][   T73]      netlink_rcv_skb+0x130/0x360
[ 5878.340689][   T73]      netlink_unicast+0x449/0x710
[ 5878.340689][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5878.340689][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5878.340689][   T73]      ___sys_sendmsg+0xee/0x170
[ 5878.340689][   T73]      __sys_sendmsg+0xcd/0x170
[ 5878.340689][   T73]      do_syscall_64+0xc6/0x1e0
[ 5878.340689][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5878.340689][   T73] 
[ 5878.342975][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5878.342975][   T73]      dst_init+0x84/0x4a0
[ 5878.342975][   T73]      dst_alloc+0x97/0x150
[ 5878.342975][   T73]      ip6_dst_alloc+0x23/0x90
[ 5878.342975][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5878.342975][   T73]      ip6_pol_route+0x56f/0x840
[ 5878.342975][   T73]      fib6_rule_lookup+0x456/0x630
[ 5878.342975][   T73]      ip6_route_input+0x59c/0xa50
[ 5878.342975][   T73]      ipv6_rcv+0x397/0x810
[ 5878.342975][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5878.342975][   T73]      process_backlog+0x101/0x620
[ 5878.342975][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5878.342975][   T73]      net_rx_action+0x495/0xbe0
[ 5878.342975][   T73]      __do_softirq+0x1b5/0x7f6
[ 5878.342975][   T73] 
[ 5878.344985][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5878.344985][   T73]      netdev_get_by_index+0x5e/0x80
[ 5878.344985][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5878.344985][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5878.344985][   T73]      ip6_route_add+0x1c/0x140
[ 5878.344985][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5878.344985][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5878.344985][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5878.344985][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5878.344985][   T73]      netlink_rcv_skb+0x130/0x360
[ 5878.344985][   T73]      netlink_unicast+0x449/0x710
[ 5878.344985][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5878.344985][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5878.344985][   T73]      ___sys_sendmsg+0xee/0x170
[ 5878.344985][   T73]      __sys_sendmsg+0xcd/0x170
[ 5878.344985][   T73]      do_syscall_64+0xc6/0x1e0
[ 5878.344985][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5878.344985][   T73] 
[ 5878.347458][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5878.347458][   T73]      netdev_get_by_index+0x5e/0x80
[ 5878.347458][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5878.347458][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5878.347458][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5878.347458][   T73]      ipv6_add_addr+0x411/0x2000
[ 5878.347458][   T73]      inet6_addr_add+0x30e/0xa40
[ 5878.347458][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5878.347458][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5878.347458][   T73]      netlink_rcv_skb+0x130/0x360
[ 5878.347458][   T73]      netlink_unicast+0x449/0x710
[ 5878.347458][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5878.347458][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5878.347458][   T73]      ___sys_sendmsg+0xee/0x170
[ 5878.347458][   T73]      __sys_sendmsg+0xcd/0x170
[ 5878.347458][   T73]      do_syscall_64+0xc6/0x1e0
[ 5878.347458][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5878.347458][   T73] 
[ 5878.349892][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5878.349892][   T73]      netdev_get_by_index+0x5e/0x80
[ 5878.349892][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5878.349892][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5878.349892][   T73]      ip6_route_add+0x1c/0x140
[ 5878.349892][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5878.349892][   T73]      addrconf_add_dev+0xe2/0x170
[ 5878.349892][   T73]      inet6_addr_add+0x12f/0xa40
[ 5878.349892][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5878.349892][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5878.349892][   T73]      netlink_rcv_skb+0x130/0x360
[ 5878.349892][   T73]      netlink_unicast+0x449/0x710
[ 5878.349892][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5878.349892][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5878.349892][   T73]      ___sys_sendmsg+0xee/0x170
[ 5878.349892][   T73]      __sys_sendmsg+0xcd/0x170
[ 5878.349892][   T73]      do_syscall_64+0xc6/0x1e0
[ 5878.349892][   T73] 
[ 5878.352346][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5878.352346][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5878.352346][   T73]      ipv6_find_idev+0x102/0x170
[ 5878.352346][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5878.352346][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5878.352346][   T73]      netlink_rcv_skb+0x130/0x360
[ 5878.352346][   T73]      netlink_unicast+0x449/0x710
[ 5878.352346][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5878.352346][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5878.352346][   T73]      ___sys_sendmsg+0xee/0x170
[ 5878.352346][   T73]      __sys_sendmsg+0xcd/0x170
[ 5878.352346][   T73]      do_syscall_64+0xc6/0x1e0
[ 5878.352346][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5878.352346][   T73] 
[ 5878.354251][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5878.354251][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5878.354251][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5878.354251][   T73]      ipv6_find_idev+0x102/0x170
[ 5878.354251][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5878.354251][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5878.354251][   T73]      netlink_rcv_skb+0x130/0x360
[ 5878.354251][   T73]      netlink_unicast+0x449/0x710
[ 5878.354251][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5878.354251][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5878.354251][   T73]      ___sys_sendmsg+0xee/0x170
[ 5878.354251][   T73]      __sys_sendmsg+0xcd/0x170
[ 5878.354251][   T73]      do_syscall_64+0xc6/0x1e0
[ 5878.354251][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5878.354251][   T73] 
[ 5878.356316][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5878.356694][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5878.356694][   T73]      netdev_get_by_index+0x5e/0x80
[ 5878.356694][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5878.356694][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5878.356694][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5878.356694][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5878.356694][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5878.356694][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5878.356694][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5878.356694][   T73]      addrconf_dad_begin+0x310/0x670
[ 5878.356694][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5878.356694][   T73]      process_one_work+0x84d/0x18a0
[ 5878.356694][   T73]      worker_thread+0x587/0xd30
[ 5878.356694][   T73]      kthread+0x28a/0x350
[ 5878.356694][   T73]      ret_from_fork+0x31/0x70
[ 5878.356694][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5878.356694][   T73] 
[ 5878.358953][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5878.358953][   T73]      netdev_get_by_index+0x5e/0x80
[ 5878.358953][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5878.358953][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5878.358953][   T73]      ip6_route_add+0x1c/0x140
[ 5878.358953][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5878.358953][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5878.358953][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5878.358953][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5878.358953][   T73]      netlink_rcv_skb+0x130/0x360
[ 5878.358953][   T73]      netlink_unicast+0x449/0x710
[ 5878.358953][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5878.358953][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5878.358953][   T73]      ___sys_sendmsg+0xee/0x170
[ 5878.358953][   T73]      __sys_sendmsg+0xcd/0x170
[ 5878.358953][   T73]      do_syscall_64+0xc6/0x1e0
[ 5878.358953][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5878.358953][   T73] 
[ 5878.361422][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5878.361422][   T73]      netdev_get_by_index+0x5e/0x80
[ 5878.361422][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5878.361422][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5878.361422][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5878.361422][   T73]      ipv6_add_addr+0x411/0x2000
[ 5878.361422][   T73]      inet6_addr_add+0x30e/0xa40
[ 5878.361422][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5878.361422][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5878.361422][   T73]      netlink_rcv_skb+0x130/0x360
[ 5878.361422][   T73]      netlink_unicast+0x449/0x710
[ 5878.361422][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5878.361422][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5878.361422][   T73]      ___sys_sendmsg+0xee/0x170
[ 5878.361422][   T73]      __sys_sendmsg+0xcd/0x170
[ 5878.361422][   T73]      do_syscall_64+0xc6/0x1e0
[ 5878.361422][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5878.361422][   T73] 
[ 5878.363961][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5878.363961][   T73]      netdev_get_by_index+0x5e/0x80
[ 5878.363961][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5878.363961][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5878.363961][   T73]      ip6_route_add+0x1c/0x140
[ 5878.363961][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5878.363961][   T73]      addrconf_add_dev+0xe2/0x170
[ 5878.363961][   T73]      inet6_addr_add+0x12f/0xa40
[ 5878.363961][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5878.363961][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5878.363961][   T73]      netlink_rcv_skb+0x130/0x360
[ 5878.363961][   T73]      netlink_unicast+0x449/0x710
[ 5878.363961][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5878.363961][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5878.363961][   T73]      ___sys_sendmsg+0xee/0x170
[ 5878.363961][   T73]      __sys_sendmsg+0xcd/0x170
[ 5878.363961][   T73]      do_syscall_64+0xc6/0x1e0
[ 5878.363961][   T73] 
[ 5878.366398][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5878.366398][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5878.366398][   T73]      ipv6_find_idev+0x102/0x170
[ 5878.366398][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5878.366398][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5878.366398][   T73]      netlink_rcv_skb+0x130/0x360
[ 5878.366398][   T73]      netlink_unicast+0x449/0x710
[ 5878.366398][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5878.366398][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5878.366398][   T73]      ___sys_sendmsg+0xee/0x170
[ 5878.366398][   T73]      __sys_sendmsg+0xcd/0x170
[ 5878.366398][   T73]      do_syscall_64+0xc6/0x1e0
[ 5878.366398][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5878.366398][   T73] 
[ 5878.368325][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5878.368325][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5878.368325][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5878.368325][   T73]      ipv6_find_idev+0x102/0x170
[ 5878.368325][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5878.368325][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5878.368325][   T73]      netlink_rcv_skb+0x130/0x360
[ 5878.368325][   T73]      netlink_unicast+0x449/0x710
[ 5878.368325][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5878.368325][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5878.368325][   T73]      ___sys_sendmsg+0xee/0x170
[ 5878.368325][   T73]      __sys_sendmsg+0xcd/0x170
[ 5878.368325][   T73]      do_syscall_64+0xc6/0x1e0
[ 5878.368325][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5878.368325][   T73] 
[ 5888.607684][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5888.608106][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5888.608106][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5888.608106][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5888.608106][   T73]      fib6_nh_init+0xa22/0x1580
[ 5888.608106][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5888.608106][   T73]      ip6_route_add+0x1c/0x140
[ 5888.608106][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5888.608106][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5888.608106][   T73]      netlink_rcv_skb+0x130/0x360
[ 5888.608106][   T73]      netlink_unicast+0x449/0x710
[ 5888.608106][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5888.608106][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5888.608106][   T73]      ___sys_sendmsg+0xee/0x170
[ 5888.608106][   T73]      __sys_sendmsg+0xcd/0x170
[ 5888.608106][   T73]      do_syscall_64+0xc6/0x1e0
[ 5888.608106][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5888.608106][   T73] 
[ 5888.610087][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5888.610087][   T73]      dst_init+0x84/0x4a0
[ 5888.610087][   T73]      dst_alloc+0x97/0x150
[ 5888.610087][   T73]      ip6_dst_alloc+0x23/0x90
[ 5888.610087][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5888.610087][   T73]      ip6_pol_route+0x56f/0x840
[ 5888.610087][   T73]      fib6_rule_lookup+0x456/0x630
[ 5888.610087][   T73]      ip6_route_input+0x59c/0xa50
[ 5888.610087][   T73]      ipv6_rcv+0x397/0x810
[ 5888.610087][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5888.610087][   T73]      process_backlog+0x101/0x620
[ 5888.610087][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5888.610087][   T73]      net_rx_action+0x495/0xbe0
[ 5888.610087][   T73]      __do_softirq+0x1b5/0x7f6
[ 5888.610087][   T73] 
[ 5888.612447][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5888.612447][   T73]      netdev_get_by_index+0x5e/0x80
[ 5888.612447][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5888.612447][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5888.612447][   T73]      ip6_route_add+0x1c/0x140
[ 5888.612447][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5888.612447][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5888.612447][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5888.612447][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5888.612447][   T73]      netlink_rcv_skb+0x130/0x360
[ 5888.612447][   T73]      netlink_unicast+0x449/0x710
[ 5888.612447][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5888.612447][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5888.612447][   T73]      ___sys_sendmsg+0xee/0x170
[ 5888.612447][   T73]      __sys_sendmsg+0xcd/0x170
[ 5888.612447][   T73]      do_syscall_64+0xc6/0x1e0
[ 5888.612447][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5888.612447][   T73] 
[ 5888.614490][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5888.614490][   T73]      netdev_get_by_index+0x5e/0x80
[ 5888.614490][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5888.614490][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5888.614490][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5888.614490][   T73]      ipv6_add_addr+0x411/0x2000
[ 5888.614490][   T73]      inet6_addr_add+0x30e/0xa40
[ 5888.614490][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5888.614490][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5888.614490][   T73]      netlink_rcv_skb+0x130/0x360
[ 5888.614490][   T73]      netlink_unicast+0x449/0x710
[ 5888.614490][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5888.614490][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5888.614490][   T73]      ___sys_sendmsg+0xee/0x170
[ 5888.614490][   T73]      __sys_sendmsg+0xcd/0x170
[ 5888.614490][   T73]      do_syscall_64+0xc6/0x1e0
[ 5888.614490][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5888.614490][   T73] 
[ 5888.616539][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5888.616539][   T73]      netdev_get_by_index+0x5e/0x80
[ 5888.616539][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5888.616539][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5888.616539][   T73]      ip6_route_add+0x1c/0x140
[ 5888.616539][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5888.616539][   T73]      addrconf_add_dev+0xe2/0x170
[ 5888.616539][   T73]      inet6_addr_add+0x12f/0xa40
[ 5888.616539][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5888.616539][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5888.616539][   T73]      netlink_rcv_skb+0x130/0x360
[ 5888.616539][   T73]      netlink_unicast+0x449/0x710
[ 5888.616539][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5888.616539][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5888.616539][   T73]      ___sys_sendmsg+0xee/0x170
[ 5888.616539][   T73]      __sys_sendmsg+0xcd/0x170
[ 5888.616539][   T73]      do_syscall_64+0xc6/0x1e0
[ 5888.616539][   T73] 
[ 5888.618555][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5888.618555][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5888.618555][   T73]      ipv6_find_idev+0x102/0x170
[ 5888.618555][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5888.618555][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5888.618555][   T73]      netlink_rcv_skb+0x130/0x360
[ 5888.618555][   T73]      netlink_unicast+0x449/0x710
[ 5888.618555][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5888.618555][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5888.618555][   T73]      ___sys_sendmsg+0xee/0x170
[ 5888.618555][   T73]      __sys_sendmsg+0xcd/0x170
[ 5888.618555][   T73]      do_syscall_64+0xc6/0x1e0
[ 5888.618555][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5888.618555][   T73] 
[ 5888.620127][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5888.620127][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5888.620127][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5888.620127][   T73]      ipv6_find_idev+0x102/0x170
[ 5888.620127][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5888.620127][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5888.620127][   T73]      netlink_rcv_skb+0x130/0x360
[ 5888.620127][   T73]      netlink_unicast+0x449/0x710
[ 5888.620127][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5888.620127][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5888.620127][   T73]      ___sys_sendmsg+0xee/0x170
[ 5888.620127][   T73]      __sys_sendmsg+0xcd/0x170
[ 5888.620127][   T73]      do_syscall_64+0xc6/0x1e0
[ 5888.620127][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5888.620127][   T73] 
[ 5888.621855][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5888.622148][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5888.622148][   T73]      netdev_get_by_index+0x5e/0x80
[ 5888.622148][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5888.622148][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5888.622148][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5888.622148][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5888.622148][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5888.622148][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5888.622148][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5888.622148][   T73]      addrconf_dad_begin+0x310/0x670
[ 5888.622148][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5888.622148][   T73]      process_one_work+0x84d/0x18a0
[ 5888.622148][   T73]      worker_thread+0x587/0xd30
[ 5888.622148][   T73]      kthread+0x28a/0x350
[ 5888.622148][   T73]      ret_from_fork+0x31/0x70
[ 5888.622148][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5888.622148][   T73] 
[ 5888.624097][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5888.624097][   T73]      netdev_get_by_index+0x5e/0x80
[ 5888.624097][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5888.624097][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5888.624097][   T73]      ip6_route_add+0x1c/0x140
[ 5888.624097][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5888.624097][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5888.624097][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5888.624097][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5888.624097][   T73]      netlink_rcv_skb+0x130/0x360
[ 5888.624097][   T73]      netlink_unicast+0x449/0x710
[ 5888.624097][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5888.624097][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5888.624097][   T73]      ___sys_sendmsg+0xee/0x170
[ 5888.624097][   T73]      __sys_sendmsg+0xcd/0x170
[ 5888.624097][   T73]      do_syscall_64+0xc6/0x1e0
[ 5888.624097][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5888.624097][   T73] 
[ 5888.626145][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5888.626145][   T73]      netdev_get_by_index+0x5e/0x80
[ 5888.626145][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5888.626145][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5888.626145][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5888.626145][   T73]      ipv6_add_addr+0x411/0x2000
[ 5888.626145][   T73]      inet6_addr_add+0x30e/0xa40
[ 5888.626145][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5888.626145][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5888.626145][   T73]      netlink_rcv_skb+0x130/0x360
[ 5888.626145][   T73]      netlink_unicast+0x449/0x710
[ 5888.626145][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5888.626145][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5888.626145][   T73]      ___sys_sendmsg+0xee/0x170
[ 5888.626145][   T73]      __sys_sendmsg+0xcd/0x170
[ 5888.626145][   T73]      do_syscall_64+0xc6/0x1e0
[ 5888.626145][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5888.626145][   T73] 
[ 5888.628198][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5888.628198][   T73]      netdev_get_by_index+0x5e/0x80
[ 5888.628198][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5888.628198][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5888.628198][   T73]      ip6_route_add+0x1c/0x140
[ 5888.628198][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5888.628198][   T73]      addrconf_add_dev+0xe2/0x170
[ 5888.628198][   T73]      inet6_addr_add+0x12f/0xa40
[ 5888.628198][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5888.628198][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5888.628198][   T73]      netlink_rcv_skb+0x130/0x360
[ 5888.628198][   T73]      netlink_unicast+0x449/0x710
[ 5888.628198][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5888.628198][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5888.628198][   T73]      ___sys_sendmsg+0xee/0x170
[ 5888.628198][   T73]      __sys_sendmsg+0xcd/0x170
[ 5888.628198][   T73]      do_syscall_64+0xc6/0x1e0
[ 5888.628198][   T73] 
[ 5888.630203][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5888.630203][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5888.630203][   T73]      ipv6_find_idev+0x102/0x170
[ 5888.630203][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5888.630203][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5888.630203][   T73]      netlink_rcv_skb+0x130/0x360
[ 5888.630203][   T73]      netlink_unicast+0x449/0x710
[ 5888.630203][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5888.630203][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5888.630203][   T73]      ___sys_sendmsg+0xee/0x170
[ 5888.630203][   T73]      __sys_sendmsg+0xcd/0x170
[ 5888.630203][   T73]      do_syscall_64+0xc6/0x1e0
[ 5888.630203][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5888.630203][   T73] 
[ 5888.631775][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5888.631775][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5888.631775][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5888.631775][   T73]      ipv6_find_idev+0x102/0x170
[ 5888.631775][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5888.631775][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5888.631775][   T73]      netlink_rcv_skb+0x130/0x360
[ 5888.631775][   T73]      netlink_unicast+0x449/0x710
[ 5888.631775][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5888.631775][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5888.631775][   T73]      ___sys_sendmsg+0xee/0x170
[ 5888.631775][   T73]      __sys_sendmsg+0xcd/0x170
[ 5888.631775][   T73]      do_syscall_64+0xc6/0x1e0
[ 5888.631775][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5888.631775][   T73] 
[ 5888.633500][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5888.633793][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5888.633793][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5888.633793][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5888.633793][   T73]      fib6_nh_init+0xa22/0x1580
[ 5888.633793][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5888.633793][   T73]      ip6_route_add+0x1c/0x140
[ 5888.633793][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5888.633793][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5888.633793][   T73]      netlink_rcv_skb+0x130/0x360
[ 5888.633793][   T73]      netlink_unicast+0x449/0x710
[ 5888.633793][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5888.633793][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5888.633793][   T73]      ___sys_sendmsg+0xee/0x170
[ 5888.633793][   T73]      __sys_sendmsg+0xcd/0x170
[ 5888.633793][   T73]      do_syscall_64+0xc6/0x1e0
[ 5888.633793][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5888.633793][   T73] 
[ 5888.635881][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5888.635881][   T73]      dst_init+0x84/0x4a0
[ 5888.635881][   T73]      dst_alloc+0x97/0x150
[ 5888.635881][   T73]      ip6_dst_alloc+0x23/0x90
[ 5888.635881][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5888.635881][   T73]      ip6_pol_route+0x56f/0x840
[ 5888.635881][   T73]      fib6_rule_lookup+0x456/0x630
[ 5888.635881][   T73]      ip6_route_input+0x59c/0xa50
[ 5888.635881][   T73]      ipv6_rcv+0x397/0x810
[ 5888.635881][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5888.635881][   T73]      process_backlog+0x101/0x620
[ 5888.635881][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5888.635881][   T73]      net_rx_action+0x495/0xbe0
[ 5888.635881][   T73]      __do_softirq+0x1b5/0x7f6
[ 5888.635881][   T73] 
[ 5888.637629][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5888.637629][   T73]      netdev_get_by_index+0x5e/0x80
[ 5888.637629][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5888.637629][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5888.637629][   T73]      ip6_route_add+0x1c/0x140
[ 5888.637629][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5888.637629][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5888.637629][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5888.637629][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5888.637629][   T73]      netlink_rcv_skb+0x130/0x360
[ 5888.637629][   T73]      netlink_unicast+0x449/0x710
[ 5888.637629][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5888.637629][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5888.637629][   T73]      ___sys_sendmsg+0xee/0x170
[ 5888.637629][   T73]      __sys_sendmsg+0xcd/0x170
[ 5888.637629][   T73]      do_syscall_64+0xc6/0x1e0
[ 5888.637629][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5888.637629][   T73] 
[ 5888.639919][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5888.639919][   T73]      netdev_get_by_index+0x5e/0x80
[ 5888.639919][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5888.639919][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5888.639919][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5888.639919][   T73]      ipv6_add_addr+0x411/0x2000
[ 5888.639919][   T73]      inet6_addr_add+0x30e/0xa40
[ 5888.639919][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5888.639919][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5888.639919][   T73]      netlink_rcv_skb+0x130/0x360
[ 5888.639919][   T73]      netlink_unicast+0x449/0x710
[ 5888.639919][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5888.639919][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5888.639919][   T73]      ___sys_sendmsg+0xee/0x170
[ 5888.639919][   T73]      __sys_sendmsg+0xcd/0x170
[ 5888.639919][   T73]      do_syscall_64+0xc6/0x1e0
[ 5888.639919][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5888.639919][   T73] 
[ 5888.642091][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5888.642091][   T73]      netdev_get_by_index+0x5e/0x80
[ 5888.642091][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5888.642091][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5888.642091][   T73]      ip6_route_add+0x1c/0x140
[ 5888.642091][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5888.642091][   T73]      addrconf_add_dev+0xe2/0x170
[ 5888.642091][   T73]      inet6_addr_add+0x12f/0xa40
[ 5888.642091][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5888.642091][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5888.642091][   T73]      netlink_rcv_skb+0x130/0x360
[ 5888.642091][   T73]      netlink_unicast+0x449/0x710
[ 5888.642091][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5888.642091][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5888.642091][   T73]      ___sys_sendmsg+0xee/0x170
[ 5888.642091][   T73]      __sys_sendmsg+0xcd/0x170
[ 5888.642091][   T73]      do_syscall_64+0xc6/0x1e0
[ 5888.642091][   T73] 
[ 5888.644251][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5888.644251][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5888.644251][   T73]      ipv6_find_idev+0x102/0x170
[ 5888.644251][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5888.644251][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5888.644251][   T73]      netlink_rcv_skb+0x130/0x360
[ 5888.644251][   T73]      netlink_unicast+0x449/0x710
[ 5888.644251][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5888.644251][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5888.644251][   T73]      ___sys_sendmsg+0xee/0x170
[ 5888.644251][   T73]      __sys_sendmsg+0xcd/0x170
[ 5888.644251][   T73]      do_syscall_64+0xc6/0x1e0
[ 5888.644251][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5888.644251][   T73] 
[ 5888.645883][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5888.645883][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5888.645883][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5888.645883][   T73]      ipv6_find_idev+0x102/0x170
[ 5888.645883][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5888.645883][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5888.645883][   T73]      netlink_rcv_skb+0x130/0x360
[ 5888.645883][   T73]      netlink_unicast+0x449/0x710
[ 5888.645883][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5888.645883][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5888.645883][   T73]      ___sys_sendmsg+0xee/0x170
[ 5888.645883][   T73]      __sys_sendmsg+0xcd/0x170
[ 5888.645883][   T73]      do_syscall_64+0xc6/0x1e0
[ 5888.645883][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5888.645883][   T73] 
[ 5888.647763][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5888.648037][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5888.648037][   T73]      netdev_get_by_index+0x5e/0x80
[ 5888.648037][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5888.648037][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5888.648037][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5888.648037][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5888.648037][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5888.648037][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5888.648037][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5888.648037][   T73]      addrconf_dad_begin+0x310/0x670
[ 5888.648037][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5888.648037][   T73]      process_one_work+0x84d/0x18a0
[ 5888.648037][   T73]      worker_thread+0x587/0xd30
[ 5888.648037][   T73]      kthread+0x28a/0x350
[ 5888.648037][   T73]      ret_from_fork+0x31/0x70
[ 5888.648037][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5888.648037][   T73] 
[ 5888.650141][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5888.650141][   T73]      netdev_get_by_index+0x5e/0x80
[ 5888.650141][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5888.650141][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5888.650141][   T73]      ip6_route_add+0x1c/0x140
[ 5888.650141][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5888.650141][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5888.650141][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5888.650141][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5888.650141][   T73]      netlink_rcv_skb+0x130/0x360
[ 5888.650141][   T73]      netlink_unicast+0x449/0x710
[ 5888.650141][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5888.650141][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5888.650141][   T73]      ___sys_sendmsg+0xee/0x170
[ 5888.650141][   T73]      __sys_sendmsg+0xcd/0x170
[ 5888.650141][   T73]      do_syscall_64+0xc6/0x1e0
[ 5888.650141][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5888.650141][   T73] 
[ 5888.652326][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5888.652326][   T73]      netdev_get_by_index+0x5e/0x80
[ 5888.652326][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5888.652326][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5888.652326][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5888.652326][   T73]      ipv6_add_addr+0x411/0x2000
[ 5888.652326][   T73]      inet6_addr_add+0x30e/0xa40
[ 5888.652326][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5888.652326][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5888.652326][   T73]      netlink_rcv_skb+0x130/0x360
[ 5888.652326][   T73]      netlink_unicast+0x449/0x710
[ 5888.652326][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5888.652326][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5888.652326][   T73]      ___sys_sendmsg+0xee/0x170
[ 5888.652326][   T73]      __sys_sendmsg+0xcd/0x170
[ 5888.652326][   T73]      do_syscall_64+0xc6/0x1e0
[ 5888.652326][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5888.652326][   T73] 
[ 5888.654496][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5888.654496][   T73]      netdev_get_by_index+0x5e/0x80
[ 5888.654496][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5888.654496][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5888.654496][   T73]      ip6_route_add+0x1c/0x140
[ 5888.654496][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5888.654496][   T73]      addrconf_add_dev+0xe2/0x170
[ 5888.654496][   T73]      inet6_addr_add+0x12f/0xa40
[ 5888.654496][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5888.654496][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5888.654496][   T73]      netlink_rcv_skb+0x130/0x360
[ 5888.654496][   T73]      netlink_unicast+0x449/0x710
[ 5888.654496][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5888.654496][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5888.654496][   T73]      ___sys_sendmsg+0xee/0x170
[ 5888.654496][   T73]      __sys_sendmsg+0xcd/0x170
[ 5888.654496][   T73]      do_syscall_64+0xc6/0x1e0
[ 5888.654496][   T73] 
[ 5888.656634][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5888.656634][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5888.656634][   T73]      ipv6_find_idev+0x102/0x170
[ 5888.656634][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5888.656634][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5888.656634][   T73]      netlink_rcv_skb+0x130/0x360
[ 5888.656634][   T73]      netlink_unicast+0x449/0x710
[ 5888.656634][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5888.656634][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5888.656634][   T73]      ___sys_sendmsg+0xee/0x170
[ 5888.656634][   T73]      __sys_sendmsg+0xcd/0x170
[ 5888.656634][   T73]      do_syscall_64+0xc6/0x1e0
[ 5888.656634][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5888.656634][   T73] 
[ 5888.658301][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5888.658301][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5888.658301][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5888.658301][   T73]      ipv6_find_idev+0x102/0x170
[ 5888.658301][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5888.658301][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5888.658301][   T73]      netlink_rcv_skb+0x130/0x360
[ 5888.658301][   T73]      netlink_unicast+0x449/0x710
[ 5888.658301][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5888.658301][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5888.658301][   T73]      ___sys_sendmsg+0xee/0x170
[ 5888.658301][   T73]      __sys_sendmsg+0xcd/0x170
[ 5888.658301][   T73]      do_syscall_64+0xc6/0x1e0
[ 5888.658301][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5888.658301][   T73] 
[ 5898.711681][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5898.712163][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5898.712163][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5898.712163][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5898.712163][   T73]      fib6_nh_init+0xa22/0x1580
[ 5898.712163][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5898.712163][   T73]      ip6_route_add+0x1c/0x140
[ 5898.712163][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5898.712163][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5898.712163][   T73]      netlink_rcv_skb+0x130/0x360
[ 5898.712163][   T73]      netlink_unicast+0x449/0x710
[ 5898.712163][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5898.712163][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5898.712163][   T73]      ___sys_sendmsg+0xee/0x170
[ 5898.712163][   T73]      __sys_sendmsg+0xcd/0x170
[ 5898.712163][   T73]      do_syscall_64+0xc6/0x1e0
[ 5898.712163][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5898.712163][   T73] 
[ 5898.716916][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5898.716916][   T73]      dst_init+0x84/0x4a0
[ 5898.716916][   T73]      dst_alloc+0x97/0x150
[ 5898.716916][   T73]      ip6_dst_alloc+0x23/0x90
[ 5898.716916][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5898.716916][   T73]      ip6_pol_route+0x56f/0x840
[ 5898.716916][   T73]      fib6_rule_lookup+0x456/0x630
[ 5898.716916][   T73]      ip6_route_input+0x59c/0xa50
[ 5898.716916][   T73]      ipv6_rcv+0x397/0x810
[ 5898.716916][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5898.716916][   T73]      process_backlog+0x101/0x620
[ 5898.716916][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5898.716916][   T73]      net_rx_action+0x495/0xbe0
[ 5898.716916][   T73]      __do_softirq+0x1b5/0x7f6
[ 5898.716916][   T73] 
[ 5898.718578][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5898.718578][   T73]      netdev_get_by_index+0x5e/0x80
[ 5898.718578][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5898.718578][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5898.718578][   T73]      ip6_route_add+0x1c/0x140
[ 5898.718578][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5898.718578][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5898.718578][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5898.718578][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5898.718578][   T73]      netlink_rcv_skb+0x130/0x360
[ 5898.718578][   T73]      netlink_unicast+0x449/0x710
[ 5898.718578][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5898.718578][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5898.718578][   T73]      ___sys_sendmsg+0xee/0x170
[ 5898.718578][   T73]      __sys_sendmsg+0xcd/0x170
[ 5898.718578][   T73]      do_syscall_64+0xc6/0x1e0
[ 5898.718578][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5898.718578][   T73] 
[ 5898.720584][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5898.720584][   T73]      netdev_get_by_index+0x5e/0x80
[ 5898.720584][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5898.720584][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5898.720584][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5898.720584][   T73]      ipv6_add_addr+0x411/0x2000
[ 5898.720584][   T73]      inet6_addr_add+0x30e/0xa40
[ 5898.720584][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5898.720584][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5898.720584][   T73]      netlink_rcv_skb+0x130/0x360
[ 5898.720584][   T73]      netlink_unicast+0x449/0x710
[ 5898.720584][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5898.720584][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5898.720584][   T73]      ___sys_sendmsg+0xee/0x170
[ 5898.720584][   T73]      __sys_sendmsg+0xcd/0x170
[ 5898.720584][   T73]      do_syscall_64+0xc6/0x1e0
[ 5898.720584][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5898.720584][   T73] 
[ 5898.722589][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5898.722589][   T73]      netdev_get_by_index+0x5e/0x80
[ 5898.722589][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5898.722589][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5898.722589][   T73]      ip6_route_add+0x1c/0x140
[ 5898.722589][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5898.722589][   T73]      addrconf_add_dev+0xe2/0x170
[ 5898.722589][   T73]      inet6_addr_add+0x12f/0xa40
[ 5898.722589][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5898.722589][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5898.722589][   T73]      netlink_rcv_skb+0x130/0x360
[ 5898.722589][   T73]      netlink_unicast+0x449/0x710
[ 5898.722589][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5898.722589][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5898.722589][   T73]      ___sys_sendmsg+0xee/0x170
[ 5898.722589][   T73]      __sys_sendmsg+0xcd/0x170
[ 5898.722589][   T73]      do_syscall_64+0xc6/0x1e0
[ 5898.722589][   T73] 
[ 5898.724554][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5898.724554][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5898.724554][   T73]      ipv6_find_idev+0x102/0x170
[ 5898.724554][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5898.724554][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5898.724554][   T73]      netlink_rcv_skb+0x130/0x360
[ 5898.724554][   T73]      netlink_unicast+0x449/0x710
[ 5898.724554][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5898.724554][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5898.724554][   T73]      ___sys_sendmsg+0xee/0x170
[ 5898.724554][   T73]      __sys_sendmsg+0xcd/0x170
[ 5898.724554][   T73]      do_syscall_64+0xc6/0x1e0
[ 5898.724554][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5898.724554][   T73] 
[ 5898.726101][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5898.726101][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5898.726101][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5898.726101][   T73]      ipv6_find_idev+0x102/0x170
[ 5898.726101][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5898.726101][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5898.726101][   T73]      netlink_rcv_skb+0x130/0x360
[ 5898.726101][   T73]      netlink_unicast+0x449/0x710
[ 5898.726101][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5898.726101][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5898.726101][   T73]      ___sys_sendmsg+0xee/0x170
[ 5898.726101][   T73]      __sys_sendmsg+0xcd/0x170
[ 5898.726101][   T73]      do_syscall_64+0xc6/0x1e0
[ 5898.726101][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5898.726101][   T73] 
[ 5898.727809][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5898.728089][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5898.728089][   T73]      netdev_get_by_index+0x5e/0x80
[ 5898.728089][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5898.728089][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5898.728089][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5898.728089][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5898.728089][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5898.728089][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5898.728089][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5898.728089][   T73]      addrconf_dad_begin+0x310/0x670
[ 5898.728089][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5898.728089][   T73]      process_one_work+0x84d/0x18a0
[ 5898.728089][   T73]      worker_thread+0x587/0xd30
[ 5898.728089][   T73]      kthread+0x28a/0x350
[ 5898.728089][   T73]      ret_from_fork+0x31/0x70
[ 5898.728089][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5898.728089][   T73] 
[ 5898.730013][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5898.730013][   T73]      netdev_get_by_index+0x5e/0x80
[ 5898.730013][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5898.730013][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5898.730013][   T73]      ip6_route_add+0x1c/0x140
[ 5898.730013][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5898.730013][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5898.730013][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5898.730013][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5898.730013][   T73]      netlink_rcv_skb+0x130/0x360
[ 5898.730013][   T73]      netlink_unicast+0x449/0x710
[ 5898.730013][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5898.730013][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5898.730013][   T73]      ___sys_sendmsg+0xee/0x170
[ 5898.730013][   T73]      __sys_sendmsg+0xcd/0x170
[ 5898.730013][   T73]      do_syscall_64+0xc6/0x1e0
[ 5898.730013][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5898.730013][   T73] 
[ 5898.732010][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5898.732010][   T73]      netdev_get_by_index+0x5e/0x80
[ 5898.732010][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5898.732010][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5898.732010][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5898.732010][   T73]      ipv6_add_addr+0x411/0x2000
[ 5898.732010][   T73]      inet6_addr_add+0x30e/0xa40
[ 5898.732010][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5898.732010][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5898.732010][   T73]      netlink_rcv_skb+0x130/0x360
[ 5898.732010][   T73]      netlink_unicast+0x449/0x710
[ 5898.732010][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5898.732010][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5898.732010][   T73]      ___sys_sendmsg+0xee/0x170
[ 5898.732010][   T73]      __sys_sendmsg+0xcd/0x170
[ 5898.732010][   T73]      do_syscall_64+0xc6/0x1e0
[ 5898.732010][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5898.732010][   T73] 
[ 5898.734011][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5898.734011][   T73]      netdev_get_by_index+0x5e/0x80
[ 5898.734011][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5898.734011][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5898.734011][   T73]      ip6_route_add+0x1c/0x140
[ 5898.734011][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5898.734011][   T73]      addrconf_add_dev+0xe2/0x170
[ 5898.734011][   T73]      inet6_addr_add+0x12f/0xa40
[ 5898.734011][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5898.734011][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5898.734011][   T73]      netlink_rcv_skb+0x130/0x360
[ 5898.734011][   T73]      netlink_unicast+0x449/0x710
[ 5898.734011][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5898.734011][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5898.734011][   T73]      ___sys_sendmsg+0xee/0x170
[ 5898.734011][   T73]      __sys_sendmsg+0xcd/0x170
[ 5898.734011][   T73]      do_syscall_64+0xc6/0x1e0
[ 5898.734011][   T73] 
[ 5898.735974][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5898.735974][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5898.735974][   T73]      ipv6_find_idev+0x102/0x170
[ 5898.735974][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5898.735974][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5898.735974][   T73]      netlink_rcv_skb+0x130/0x360
[ 5898.735974][   T73]      netlink_unicast+0x449/0x710
[ 5898.735974][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5898.735974][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5898.735974][   T73]      ___sys_sendmsg+0xee/0x170
[ 5898.735974][   T73]      __sys_sendmsg+0xcd/0x170
[ 5898.735974][   T73]      do_syscall_64+0xc6/0x1e0
[ 5898.735974][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5898.735974][   T73] 
[ 5898.737523][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5898.737523][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5898.737523][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5898.737523][   T73]      ipv6_find_idev+0x102/0x170
[ 5898.737523][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5898.737523][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5898.737523][   T73]      netlink_rcv_skb+0x130/0x360
[ 5898.737523][   T73]      netlink_unicast+0x449/0x710
[ 5898.737523][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5898.737523][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5898.737523][   T73]      ___sys_sendmsg+0xee/0x170
[ 5898.737523][   T73]      __sys_sendmsg+0xcd/0x170
[ 5898.737523][   T73]      do_syscall_64+0xc6/0x1e0
[ 5898.737523][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5898.737523][   T73] 
[ 5898.739214][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5898.739484][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5898.739484][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5898.739484][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5898.739484][   T73]      fib6_nh_init+0xa22/0x1580
[ 5898.739484][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5898.739484][   T73]      ip6_route_add+0x1c/0x140
[ 5898.739484][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5898.739484][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5898.739484][   T73]      netlink_rcv_skb+0x130/0x360
[ 5898.739484][   T73]      netlink_unicast+0x449/0x710
[ 5898.739484][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5898.739484][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5898.739484][   T73]      ___sys_sendmsg+0xee/0x170
[ 5898.739484][   T73]      __sys_sendmsg+0xcd/0x170
[ 5898.739484][   T73]      do_syscall_64+0xc6/0x1e0
[ 5898.739484][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5898.739484][   T73] 
[ 5898.741461][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5898.741461][   T73]      dst_init+0x84/0x4a0
[ 5898.741461][   T73]      dst_alloc+0x97/0x150
[ 5898.741461][   T73]      ip6_dst_alloc+0x23/0x90
[ 5898.741461][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5898.741461][   T73]      ip6_pol_route+0x56f/0x840
[ 5898.741461][   T73]      fib6_rule_lookup+0x456/0x630
[ 5898.741461][   T73]      ip6_route_input+0x59c/0xa50
[ 5898.741461][   T73]      ipv6_rcv+0x397/0x810
[ 5898.741461][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5898.741461][   T73]      process_backlog+0x101/0x620
[ 5898.741461][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5898.741461][   T73]      net_rx_action+0x495/0xbe0
[ 5898.741461][   T73]      __do_softirq+0x1b5/0x7f6
[ 5898.741461][   T73] 
[ 5898.743182][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5898.743182][   T73]      netdev_get_by_index+0x5e/0x80
[ 5898.743182][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5898.743182][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5898.743182][   T73]      ip6_route_add+0x1c/0x140
[ 5898.743182][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5898.743182][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5898.743182][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5898.743182][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5898.743182][   T73]      netlink_rcv_skb+0x130/0x360
[ 5898.743182][   T73]      netlink_unicast+0x449/0x710
[ 5898.743182][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5898.743182][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5898.743182][   T73]      ___sys_sendmsg+0xee/0x170
[ 5898.743182][   T73]      __sys_sendmsg+0xcd/0x170
[ 5898.743182][   T73]      do_syscall_64+0xc6/0x1e0
[ 5898.743182][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5898.743182][   T73] 
[ 5898.745348][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5898.745348][   T73]      netdev_get_by_index+0x5e/0x80
[ 5898.745348][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5898.745348][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5898.745348][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5898.745348][   T73]      ipv6_add_addr+0x411/0x2000
[ 5898.745348][   T73]      inet6_addr_add+0x30e/0xa40
[ 5898.745348][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5898.745348][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5898.745348][   T73]      netlink_rcv_skb+0x130/0x360
[ 5898.745348][   T73]      netlink_unicast+0x449/0x710
[ 5898.745348][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5898.745348][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5898.745348][   T73]      ___sys_sendmsg+0xee/0x170
[ 5898.745348][   T73]      __sys_sendmsg+0xcd/0x170
[ 5898.745348][   T73]      do_syscall_64+0xc6/0x1e0
[ 5898.745348][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5898.745348][   T73] 
[ 5898.747436][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5898.747436][   T73]      netdev_get_by_index+0x5e/0x80
[ 5898.747436][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5898.747436][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5898.747436][   T73]      ip6_route_add+0x1c/0x140
[ 5898.747436][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5898.747436][   T73]      addrconf_add_dev+0xe2/0x170
[ 5898.747436][   T73]      inet6_addr_add+0x12f/0xa40
[ 5898.747436][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5898.747436][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5898.747436][   T73]      netlink_rcv_skb+0x130/0x360
[ 5898.747436][   T73]      netlink_unicast+0x449/0x710
[ 5898.747436][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5898.747436][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5898.747436][   T73]      ___sys_sendmsg+0xee/0x170
[ 5898.747436][   T73]      __sys_sendmsg+0xcd/0x170
[ 5898.747436][   T73]      do_syscall_64+0xc6/0x1e0
[ 5898.747436][   T73] 
[ 5898.749477][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5898.749477][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5898.749477][   T73]      ipv6_find_idev+0x102/0x170
[ 5898.749477][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5898.749477][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5898.749477][   T73]      netlink_rcv_skb+0x130/0x360
[ 5898.749477][   T73]      netlink_unicast+0x449/0x710
[ 5898.749477][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5898.749477][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5898.749477][   T73]      ___sys_sendmsg+0xee/0x170
[ 5898.749477][   T73]      __sys_sendmsg+0xcd/0x170
[ 5898.749477][   T73]      do_syscall_64+0xc6/0x1e0
[ 5898.749477][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5898.749477][   T73] 
[ 5898.751175][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5898.751175][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5898.751175][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5898.751175][   T73]      ipv6_find_idev+0x102/0x170
[ 5898.751175][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5898.751175][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5898.751175][   T73]      netlink_rcv_skb+0x130/0x360
[ 5898.751175][   T73]      netlink_unicast+0x449/0x710
[ 5898.751175][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5898.751175][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5898.751175][   T73]      ___sys_sendmsg+0xee/0x170
[ 5898.751175][   T73]      __sys_sendmsg+0xcd/0x170
[ 5898.751175][   T73]      do_syscall_64+0xc6/0x1e0
[ 5898.751175][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5898.751175][   T73] 
[ 5898.752954][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5898.753232][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5898.753232][   T73]      netdev_get_by_index+0x5e/0x80
[ 5898.753232][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5898.753232][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5898.753232][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5898.753232][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5898.753232][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5898.753232][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5898.753232][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5898.753232][   T73]      addrconf_dad_begin+0x310/0x670
[ 5898.753232][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5898.753232][   T73]      process_one_work+0x84d/0x18a0
[ 5898.753232][   T73]      worker_thread+0x587/0xd30
[ 5898.753232][   T73]      kthread+0x28a/0x350
[ 5898.753232][   T73]      ret_from_fork+0x31/0x70
[ 5898.753232][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5898.753232][   T73] 
[ 5898.755223][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5898.755223][   T73]      netdev_get_by_index+0x5e/0x80
[ 5898.755223][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5898.755223][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5898.755223][   T73]      ip6_route_add+0x1c/0x140
[ 5898.755223][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5898.755223][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5898.755223][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5898.755223][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5898.755223][   T73]      netlink_rcv_skb+0x130/0x360
[ 5898.755223][   T73]      netlink_unicast+0x449/0x710
[ 5898.755223][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5898.755223][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5898.755223][   T73]      ___sys_sendmsg+0xee/0x170
[ 5898.755223][   T73]      __sys_sendmsg+0xcd/0x170
[ 5898.755223][   T73]      do_syscall_64+0xc6/0x1e0
[ 5898.755223][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5898.755223][   T73] 
[ 5898.757395][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5898.757395][   T73]      netdev_get_by_index+0x5e/0x80
[ 5898.757395][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5898.757395][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5898.757395][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5898.757395][   T73]      ipv6_add_addr+0x411/0x2000
[ 5898.757395][   T73]      inet6_addr_add+0x30e/0xa40
[ 5898.757395][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5898.757395][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5898.757395][   T73]      netlink_rcv_skb+0x130/0x360
[ 5898.757395][   T73]      netlink_unicast+0x449/0x710
[ 5898.757395][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5898.757395][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5898.757395][   T73]      ___sys_sendmsg+0xee/0x170
[ 5898.757395][   T73]      __sys_sendmsg+0xcd/0x170
[ 5898.757395][   T73]      do_syscall_64+0xc6/0x1e0
[ 5898.757395][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5898.757395][   T73] 
[ 5898.759464][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5898.759464][   T73]      netdev_get_by_index+0x5e/0x80
[ 5898.759464][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5898.759464][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5898.759464][   T73]      ip6_route_add+0x1c/0x140
[ 5898.759464][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5898.759464][   T73]      addrconf_add_dev+0xe2/0x170
[ 5898.759464][   T73]      inet6_addr_add+0x12f/0xa40
[ 5898.759464][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5898.759464][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5898.759464][   T73]      netlink_rcv_skb+0x130/0x360
[ 5898.759464][   T73]      netlink_unicast+0x449/0x710
[ 5898.759464][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5898.759464][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5898.759464][   T73]      ___sys_sendmsg+0xee/0x170
[ 5898.759464][   T73]      __sys_sendmsg+0xcd/0x170
[ 5898.759464][   T73]      do_syscall_64+0xc6/0x1e0
[ 5898.759464][   T73] 
[ 5898.761498][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5898.761498][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5898.761498][   T73]      ipv6_find_idev+0x102/0x170
[ 5898.761498][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5898.761498][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5898.761498][   T73]      netlink_rcv_skb+0x130/0x360
[ 5898.761498][   T73]      netlink_unicast+0x449/0x710
[ 5898.761498][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5898.761498][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5898.761498][   T73]      ___sys_sendmsg+0xee/0x170
[ 5898.761498][   T73]      __sys_sendmsg+0xcd/0x170
[ 5898.761498][   T73]      do_syscall_64+0xc6/0x1e0
[ 5898.761498][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5898.761498][   T73] 
[ 5898.763151][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5898.763151][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5898.763151][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5898.763151][   T73]      ipv6_find_idev+0x102/0x170
[ 5898.763151][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5898.763151][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5898.763151][   T73]      netlink_rcv_skb+0x130/0x360
[ 5898.763151][   T73]      netlink_unicast+0x449/0x710
[ 5898.763151][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5898.763151][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5898.763151][   T73]      ___sys_sendmsg+0xee/0x170
[ 5898.763151][   T73]      __sys_sendmsg+0xcd/0x170
[ 5898.763151][   T73]      do_syscall_64+0xc6/0x1e0
[ 5898.763151][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5898.763151][   T73] 
[ 5908.847675][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5908.848153][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5908.848153][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5908.848153][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5908.848153][   T73]      fib6_nh_init+0xa22/0x1580
[ 5908.848153][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5908.848153][   T73]      ip6_route_add+0x1c/0x140
[ 5908.848153][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5908.848153][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5908.848153][   T73]      netlink_rcv_skb+0x130/0x360
[ 5908.848153][   T73]      netlink_unicast+0x449/0x710
[ 5908.848153][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5908.848153][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5908.848153][   T73]      ___sys_sendmsg+0xee/0x170
[ 5908.848153][   T73]      __sys_sendmsg+0xcd/0x170
[ 5908.848153][   T73]      do_syscall_64+0xc6/0x1e0
[ 5908.848153][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5908.848153][   T73] 
[ 5908.850064][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5908.850064][   T73]      dst_init+0x84/0x4a0
[ 5908.850064][   T73]      dst_alloc+0x97/0x150
[ 5908.850064][   T73]      ip6_dst_alloc+0x23/0x90
[ 5908.850064][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5908.850064][   T73]      ip6_pol_route+0x56f/0x840
[ 5908.850064][   T73]      fib6_rule_lookup+0x456/0x630
[ 5908.850064][   T73]      ip6_route_input+0x59c/0xa50
[ 5908.850064][   T73]      ipv6_rcv+0x397/0x810
[ 5908.850064][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5908.850064][   T73]      process_backlog+0x101/0x620
[ 5908.850064][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5908.850064][   T73]      net_rx_action+0x495/0xbe0
[ 5908.850064][   T73]      __do_softirq+0x1b5/0x7f6
[ 5908.850064][   T73] 
[ 5908.851695][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5908.851695][   T73]      netdev_get_by_index+0x5e/0x80
[ 5908.851695][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5908.851695][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5908.851695][   T73]      ip6_route_add+0x1c/0x140
[ 5908.851695][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5908.851695][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5908.851695][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5908.851695][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5908.851695][   T73]      netlink_rcv_skb+0x130/0x360
[ 5908.851695][   T73]      netlink_unicast+0x449/0x710
[ 5908.851695][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5908.851695][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5908.851695][   T73]      ___sys_sendmsg+0xee/0x170
[ 5908.851695][   T73]      __sys_sendmsg+0xcd/0x170
[ 5908.851695][   T73]      do_syscall_64+0xc6/0x1e0
[ 5908.851695][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5908.851695][   T73] 
[ 5908.853691][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5908.853691][   T73]      netdev_get_by_index+0x5e/0x80
[ 5908.853691][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5908.853691][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5908.853691][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5908.853691][   T73]      ipv6_add_addr+0x411/0x2000
[ 5908.853691][   T73]      inet6_addr_add+0x30e/0xa40
[ 5908.853691][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5908.853691][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5908.853691][   T73]      netlink_rcv_skb+0x130/0x360
[ 5908.853691][   T73]      netlink_unicast+0x449/0x710
[ 5908.853691][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5908.853691][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5908.853691][   T73]      ___sys_sendmsg+0xee/0x170
[ 5908.853691][   T73]      __sys_sendmsg+0xcd/0x170
[ 5908.853691][   T73]      do_syscall_64+0xc6/0x1e0
[ 5908.853691][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5908.853691][   T73] 
[ 5908.855683][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5908.855683][   T73]      netdev_get_by_index+0x5e/0x80
[ 5908.855683][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5908.855683][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5908.855683][   T73]      ip6_route_add+0x1c/0x140
[ 5908.855683][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5908.855683][   T73]      addrconf_add_dev+0xe2/0x170
[ 5908.855683][   T73]      inet6_addr_add+0x12f/0xa40
[ 5908.855683][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5908.855683][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5908.855683][   T73]      netlink_rcv_skb+0x130/0x360
[ 5908.855683][   T73]      netlink_unicast+0x449/0x710
[ 5908.855683][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5908.855683][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5908.855683][   T73]      ___sys_sendmsg+0xee/0x170
[ 5908.855683][   T73]      __sys_sendmsg+0xcd/0x170
[ 5908.855683][   T73]      do_syscall_64+0xc6/0x1e0
[ 5908.855683][   T73] 
[ 5908.857755][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5908.857755][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5908.857755][   T73]      ipv6_find_idev+0x102/0x170
[ 5908.857755][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5908.857755][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5908.857755][   T73]      netlink_rcv_skb+0x130/0x360
[ 5908.857755][   T73]      netlink_unicast+0x449/0x710
[ 5908.857755][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5908.857755][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5908.857755][   T73]      ___sys_sendmsg+0xee/0x170
[ 5908.857755][   T73]      __sys_sendmsg+0xcd/0x170
[ 5908.857755][   T73]      do_syscall_64+0xc6/0x1e0
[ 5908.857755][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5908.857755][   T73] 
[ 5908.859298][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5908.859298][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5908.859298][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5908.859298][   T73]      ipv6_find_idev+0x102/0x170
[ 5908.859298][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5908.859298][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5908.859298][   T73]      netlink_rcv_skb+0x130/0x360
[ 5908.859298][   T73]      netlink_unicast+0x449/0x710
[ 5908.859298][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5908.859298][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5908.859298][   T73]      ___sys_sendmsg+0xee/0x170
[ 5908.859298][   T73]      __sys_sendmsg+0xcd/0x170
[ 5908.859298][   T73]      do_syscall_64+0xc6/0x1e0
[ 5908.859298][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5908.859298][   T73] 
[ 5908.860989][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5908.861268][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5908.861268][   T73]      netdev_get_by_index+0x5e/0x80
[ 5908.861268][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5908.861268][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5908.861268][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5908.861268][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5908.861268][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5908.861268][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5908.861268][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5908.861268][   T73]      addrconf_dad_begin+0x310/0x670
[ 5908.861268][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5908.861268][   T73]      process_one_work+0x84d/0x18a0
[ 5908.861268][   T73]      worker_thread+0x587/0xd30
[ 5908.861268][   T73]      kthread+0x28a/0x350
[ 5908.861268][   T73]      ret_from_fork+0x31/0x70
[ 5908.861268][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5908.861268][   T73] 
[ 5908.863190][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5908.863190][   T73]      netdev_get_by_index+0x5e/0x80
[ 5908.863190][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5908.863190][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5908.863190][   T73]      ip6_route_add+0x1c/0x140
[ 5908.863190][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5908.863190][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5908.863190][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5908.863190][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5908.863190][   T73]      netlink_rcv_skb+0x130/0x360
[ 5908.863190][   T73]      netlink_unicast+0x449/0x710
[ 5908.863190][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5908.863190][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5908.863190][   T73]      ___sys_sendmsg+0xee/0x170
[ 5908.863190][   T73]      __sys_sendmsg+0xcd/0x170
[ 5908.863190][   T73]      do_syscall_64+0xc6/0x1e0
[ 5908.863190][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5908.863190][   T73] 
[ 5908.865190][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5908.865190][   T73]      netdev_get_by_index+0x5e/0x80
[ 5908.865190][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5908.865190][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5908.865190][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5908.865190][   T73]      ipv6_add_addr+0x411/0x2000
[ 5908.865190][   T73]      inet6_addr_add+0x30e/0xa40
[ 5908.865190][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5908.865190][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5908.865190][   T73]      netlink_rcv_skb+0x130/0x360
[ 5908.865190][   T73]      netlink_unicast+0x449/0x710
[ 5908.865190][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5908.865190][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5908.865190][   T73]      ___sys_sendmsg+0xee/0x170
[ 5908.865190][   T73]      __sys_sendmsg+0xcd/0x170
[ 5908.865190][   T73]      do_syscall_64+0xc6/0x1e0
[ 5908.865190][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5908.865190][   T73] 
[ 5908.867198][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5908.867198][   T73]      netdev_get_by_index+0x5e/0x80
[ 5908.867198][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5908.867198][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5908.867198][   T73]      ip6_route_add+0x1c/0x140
[ 5908.867198][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5908.867198][   T73]      addrconf_add_dev+0xe2/0x170
[ 5908.867198][   T73]      inet6_addr_add+0x12f/0xa40
[ 5908.867198][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5908.867198][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5908.867198][   T73]      netlink_rcv_skb+0x130/0x360
[ 5908.867198][   T73]      netlink_unicast+0x449/0x710
[ 5908.867198][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5908.867198][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5908.867198][   T73]      ___sys_sendmsg+0xee/0x170
[ 5908.867198][   T73]      __sys_sendmsg+0xcd/0x170
[ 5908.867198][   T73]      do_syscall_64+0xc6/0x1e0
[ 5908.867198][   T73] 
[ 5908.869164][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5908.869164][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5908.869164][   T73]      ipv6_find_idev+0x102/0x170
[ 5908.869164][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5908.869164][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5908.869164][   T73]      netlink_rcv_skb+0x130/0x360
[ 5908.869164][   T73]      netlink_unicast+0x449/0x710
[ 5908.869164][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5908.869164][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5908.869164][   T73]      ___sys_sendmsg+0xee/0x170
[ 5908.869164][   T73]      __sys_sendmsg+0xcd/0x170
[ 5908.869164][   T73]      do_syscall_64+0xc6/0x1e0
[ 5908.869164][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5908.869164][   T73] 
[ 5908.870697][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5908.870697][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5908.870697][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5908.870697][   T73]      ipv6_find_idev+0x102/0x170
[ 5908.870697][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5908.870697][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5908.870697][   T73]      netlink_rcv_skb+0x130/0x360
[ 5908.870697][   T73]      netlink_unicast+0x449/0x710
[ 5908.870697][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5908.870697][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5908.870697][   T73]      ___sys_sendmsg+0xee/0x170
[ 5908.870697][   T73]      __sys_sendmsg+0xcd/0x170
[ 5908.870697][   T73]      do_syscall_64+0xc6/0x1e0
[ 5908.870697][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5908.870697][   T73] 
[ 5908.872428][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5908.872713][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5908.872713][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5908.872713][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5908.872713][   T73]      fib6_nh_init+0xa22/0x1580
[ 5908.872713][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5908.872713][   T73]      ip6_route_add+0x1c/0x140
[ 5908.872713][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5908.872713][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5908.872713][   T73]      netlink_rcv_skb+0x130/0x360
[ 5908.872713][   T73]      netlink_unicast+0x449/0x710
[ 5908.872713][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5908.872713][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5908.872713][   T73]      ___sys_sendmsg+0xee/0x170
[ 5908.872713][   T73]      __sys_sendmsg+0xcd/0x170
[ 5908.872713][   T73]      do_syscall_64+0xc6/0x1e0
[ 5908.872713][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5908.872713][   T73] 
[ 5908.874792][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5908.874792][   T73]      dst_init+0x84/0x4a0
[ 5908.874792][   T73]      dst_alloc+0x97/0x150
[ 5908.874792][   T73]      ip6_dst_alloc+0x23/0x90
[ 5908.874792][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5908.874792][   T73]      ip6_pol_route+0x56f/0x840
[ 5908.874792][   T73]      fib6_rule_lookup+0x456/0x630
[ 5908.874792][   T73]      ip6_route_input+0x59c/0xa50
[ 5908.874792][   T73]      ipv6_rcv+0x397/0x810
[ 5908.874792][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5908.874792][   T73]      process_backlog+0x101/0x620
[ 5908.874792][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5908.874792][   T73]      net_rx_action+0x495/0xbe0
[ 5908.874792][   T73]      __do_softirq+0x1b5/0x7f6
[ 5908.874792][   T73] 
[ 5908.876641][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5908.876641][   T73]      netdev_get_by_index+0x5e/0x80
[ 5908.876641][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5908.876641][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5908.876641][   T73]      ip6_route_add+0x1c/0x140
[ 5908.876641][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5908.876641][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5908.876641][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5908.876641][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5908.876641][   T73]      netlink_rcv_skb+0x130/0x360
[ 5908.876641][   T73]      netlink_unicast+0x449/0x710
[ 5908.876641][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5908.876641][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5908.876641][   T73]      ___sys_sendmsg+0xee/0x170
[ 5908.876641][   T73]      __sys_sendmsg+0xcd/0x170
[ 5908.876641][   T73]      do_syscall_64+0xc6/0x1e0
[ 5908.876641][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5908.876641][   T73] 
[ 5908.879433][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5908.879433][   T73]      netdev_get_by_index+0x5e/0x80
[ 5908.879433][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5908.879433][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5908.879433][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5908.879433][   T73]      ipv6_add_addr+0x411/0x2000
[ 5908.879433][   T73]      inet6_addr_add+0x30e/0xa40
[ 5908.879433][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5908.879433][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5908.879433][   T73]      netlink_rcv_skb+0x130/0x360
[ 5908.879433][   T73]      netlink_unicast+0x449/0x710
[ 5908.879433][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5908.879433][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5908.879433][   T73]      ___sys_sendmsg+0xee/0x170
[ 5908.879433][   T73]      __sys_sendmsg+0xcd/0x170
[ 5908.879433][   T73]      do_syscall_64+0xc6/0x1e0
[ 5908.879433][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5908.879433][   T73] 
[ 5908.881736][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5908.881736][   T73]      netdev_get_by_index+0x5e/0x80
[ 5908.881736][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5908.881736][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5908.881736][   T73]      ip6_route_add+0x1c/0x140
[ 5908.881736][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5908.881736][   T73]      addrconf_add_dev+0xe2/0x170
[ 5908.881736][   T73]      inet6_addr_add+0x12f/0xa40
[ 5908.881736][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5908.881736][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5908.881736][   T73]      netlink_rcv_skb+0x130/0x360
[ 5908.881736][   T73]      netlink_unicast+0x449/0x710
[ 5908.881736][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5908.881736][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5908.881736][   T73]      ___sys_sendmsg+0xee/0x170
[ 5908.881736][   T73]      __sys_sendmsg+0xcd/0x170
[ 5908.881736][   T73]      do_syscall_64+0xc6/0x1e0
[ 5908.881736][   T73] 
[ 5908.883904][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5908.883904][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5908.883904][   T73]      ipv6_find_idev+0x102/0x170
[ 5908.883904][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5908.883904][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5908.883904][   T73]      netlink_rcv_skb+0x130/0x360
[ 5908.883904][   T73]      netlink_unicast+0x449/0x710
[ 5908.883904][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5908.883904][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5908.883904][   T73]      ___sys_sendmsg+0xee/0x170
[ 5908.883904][   T73]      __sys_sendmsg+0xcd/0x170
[ 5908.883904][   T73]      do_syscall_64+0xc6/0x1e0
[ 5908.883904][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5908.883904][   T73] 
[ 5908.885625][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5908.885625][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5908.885625][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5908.885625][   T73]      ipv6_find_idev+0x102/0x170
[ 5908.885625][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5908.885625][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5908.885625][   T73]      netlink_rcv_skb+0x130/0x360
[ 5908.885625][   T73]      netlink_unicast+0x449/0x710
[ 5908.885625][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5908.885625][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5908.885625][   T73]      ___sys_sendmsg+0xee/0x170
[ 5908.885625][   T73]      __sys_sendmsg+0xcd/0x170
[ 5908.885625][   T73]      do_syscall_64+0xc6/0x1e0
[ 5908.885625][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5908.885625][   T73] 
[ 5908.887571][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5908.888287][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5908.888287][   T73]      netdev_get_by_index+0x5e/0x80
[ 5908.888287][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5908.888287][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5908.888287][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5908.888287][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5908.888287][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5908.888287][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5908.888287][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5908.888287][   T73]      addrconf_dad_begin+0x310/0x670
[ 5908.888287][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5908.888287][   T73]      process_one_work+0x84d/0x18a0
[ 5908.888287][   T73]      worker_thread+0x587/0xd30
[ 5908.888287][   T73]      kthread+0x28a/0x350
[ 5908.888287][   T73]      ret_from_fork+0x31/0x70
[ 5908.888287][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5908.888287][   T73] 
[ 5908.890197][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5908.890197][   T73]      netdev_get_by_index+0x5e/0x80
[ 5908.890197][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5908.890197][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5908.890197][   T73]      ip6_route_add+0x1c/0x140
[ 5908.890197][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5908.890197][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5908.890197][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5908.890197][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5908.890197][   T73]      netlink_rcv_skb+0x130/0x360
[ 5908.890197][   T73]      netlink_unicast+0x449/0x710
[ 5908.890197][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5908.890197][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5908.890197][   T73]      ___sys_sendmsg+0xee/0x170
[ 5908.890197][   T73]      __sys_sendmsg+0xcd/0x170
[ 5908.890197][   T73]      do_syscall_64+0xc6/0x1e0
[ 5908.890197][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5908.890197][   T73] 
[ 5908.892328][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5908.892328][   T73]      netdev_get_by_index+0x5e/0x80
[ 5908.892328][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5908.892328][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5908.892328][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5908.892328][   T73]      ipv6_add_addr+0x411/0x2000
[ 5908.892328][   T73]      inet6_addr_add+0x30e/0xa40
[ 5908.892328][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5908.892328][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5908.892328][   T73]      netlink_rcv_skb+0x130/0x360
[ 5908.892328][   T73]      netlink_unicast+0x449/0x710
[ 5908.892328][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5908.892328][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5908.892328][   T73]      ___sys_sendmsg+0xee/0x170
[ 5908.892328][   T73]      __sys_sendmsg+0xcd/0x170
[ 5908.892328][   T73]      do_syscall_64+0xc6/0x1e0
[ 5908.892328][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5908.892328][   T73] 
[ 5908.894576][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5908.894576][   T73]      netdev_get_by_index+0x5e/0x80
[ 5908.894576][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5908.894576][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5908.894576][   T73]      ip6_route_add+0x1c/0x140
[ 5908.894576][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5908.894576][   T73]      addrconf_add_dev+0xe2/0x170
[ 5908.894576][   T73]      inet6_addr_add+0x12f/0xa40
[ 5908.894576][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5908.894576][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5908.894576][   T73]      netlink_rcv_skb+0x130/0x360
[ 5908.894576][   T73]      netlink_unicast+0x449/0x710
[ 5908.894576][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5908.894576][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5908.894576][   T73]      ___sys_sendmsg+0xee/0x170
[ 5908.894576][   T73]      __sys_sendmsg+0xcd/0x170
[ 5908.894576][   T73]      do_syscall_64+0xc6/0x1e0
[ 5908.894576][   T73] 
[ 5908.896780][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5908.896780][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5908.896780][   T73]      ipv6_find_idev+0x102/0x170
[ 5908.896780][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5908.896780][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5908.896780][   T73]      netlink_rcv_skb+0x130/0x360
[ 5908.896780][   T73]      netlink_unicast+0x449/0x710
[ 5908.896780][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5908.896780][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5908.896780][   T73]      ___sys_sendmsg+0xee/0x170
[ 5908.896780][   T73]      __sys_sendmsg+0xcd/0x170
[ 5908.896780][   T73]      do_syscall_64+0xc6/0x1e0
[ 5908.896780][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5908.896780][   T73] 
[ 5908.898520][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5908.898520][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5908.898520][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5908.898520][   T73]      ipv6_find_idev+0x102/0x170
[ 5908.898520][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5908.898520][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5908.898520][   T73]      netlink_rcv_skb+0x130/0x360
[ 5908.898520][   T73]      netlink_unicast+0x449/0x710
[ 5908.898520][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5908.898520][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5908.898520][   T73]      ___sys_sendmsg+0xee/0x170
[ 5908.898520][   T73]      __sys_sendmsg+0xcd/0x170
[ 5908.898520][   T73]      do_syscall_64+0xc6/0x1e0
[ 5908.898520][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5908.898520][   T73] 
[ 5919.143761][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5919.144271][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5919.144271][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5919.144271][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5919.144271][   T73]      fib6_nh_init+0xa22/0x1580
[ 5919.144271][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5919.144271][   T73]      ip6_route_add+0x1c/0x140
[ 5919.144271][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5919.144271][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5919.144271][   T73]      netlink_rcv_skb+0x130/0x360
[ 5919.144271][   T73]      netlink_unicast+0x449/0x710
[ 5919.144271][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5919.144271][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5919.144271][   T73]      ___sys_sendmsg+0xee/0x170
[ 5919.144271][   T73]      __sys_sendmsg+0xcd/0x170
[ 5919.144271][   T73]      do_syscall_64+0xc6/0x1e0
[ 5919.144271][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5919.144271][   T73] 
[ 5919.146396][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5919.146396][   T73]      dst_init+0x84/0x4a0
[ 5919.146396][   T73]      dst_alloc+0x97/0x150
[ 5919.146396][   T73]      ip6_dst_alloc+0x23/0x90
[ 5919.146396][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5919.146396][   T73]      ip6_pol_route+0x56f/0x840
[ 5919.146396][   T73]      fib6_rule_lookup+0x456/0x630
[ 5919.146396][   T73]      ip6_route_input+0x59c/0xa50
[ 5919.146396][   T73]      ipv6_rcv+0x397/0x810
[ 5919.146396][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5919.146396][   T73]      process_backlog+0x101/0x620
[ 5919.146396][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5919.146396][   T73]      net_rx_action+0x495/0xbe0
[ 5919.146396][   T73]      __do_softirq+0x1b5/0x7f6
[ 5919.146396][   T73] 
[ 5919.148244][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5919.148244][   T73]      netdev_get_by_index+0x5e/0x80
[ 5919.148244][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5919.148244][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5919.148244][   T73]      ip6_route_add+0x1c/0x140
[ 5919.148244][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5919.148244][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5919.148244][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5919.148244][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5919.148244][   T73]      netlink_rcv_skb+0x130/0x360
[ 5919.148244][   T73]      netlink_unicast+0x449/0x710
[ 5919.148244][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5919.148244][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5919.148244][   T73]      ___sys_sendmsg+0xee/0x170
[ 5919.148244][   T73]      __sys_sendmsg+0xcd/0x170
[ 5919.148244][   T73]      do_syscall_64+0xc6/0x1e0
[ 5919.148244][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5919.148244][   T73] 
[ 5919.150474][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5919.150474][   T73]      netdev_get_by_index+0x5e/0x80
[ 5919.150474][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5919.150474][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5919.150474][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5919.150474][   T73]      ipv6_add_addr+0x411/0x2000
[ 5919.150474][   T73]      inet6_addr_add+0x30e/0xa40
[ 5919.150474][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5919.150474][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5919.150474][   T73]      netlink_rcv_skb+0x130/0x360
[ 5919.150474][   T73]      netlink_unicast+0x449/0x710
[ 5919.150474][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5919.150474][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5919.150474][   T73]      ___sys_sendmsg+0xee/0x170
[ 5919.150474][   T73]      __sys_sendmsg+0xcd/0x170
[ 5919.150474][   T73]      do_syscall_64+0xc6/0x1e0
[ 5919.150474][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5919.150474][   T73] 
[ 5919.152704][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5919.152704][   T73]      netdev_get_by_index+0x5e/0x80
[ 5919.152704][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5919.152704][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5919.152704][   T73]      ip6_route_add+0x1c/0x140
[ 5919.152704][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5919.152704][   T73]      addrconf_add_dev+0xe2/0x170
[ 5919.152704][   T73]      inet6_addr_add+0x12f/0xa40
[ 5919.152704][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5919.152704][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5919.152704][   T73]      netlink_rcv_skb+0x130/0x360
[ 5919.152704][   T73]      netlink_unicast+0x449/0x710
[ 5919.152704][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5919.152704][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5919.152704][   T73]      ___sys_sendmsg+0xee/0x170
[ 5919.152704][   T73]      __sys_sendmsg+0xcd/0x170
[ 5919.152704][   T73]      do_syscall_64+0xc6/0x1e0
[ 5919.152704][   T73] 
[ 5919.154880][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5919.154880][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5919.154880][   T73]      ipv6_find_idev+0x102/0x170
[ 5919.154880][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5919.154880][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5919.154880][   T73]      netlink_rcv_skb+0x130/0x360
[ 5919.154880][   T73]      netlink_unicast+0x449/0x710
[ 5919.154880][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5919.154880][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5919.154880][   T73]      ___sys_sendmsg+0xee/0x170
[ 5919.154880][   T73]      __sys_sendmsg+0xcd/0x170
[ 5919.154880][   T73]      do_syscall_64+0xc6/0x1e0
[ 5919.154880][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5919.154880][   T73] 
[ 5919.156602][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5919.156602][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5919.156602][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5919.156602][   T73]      ipv6_find_idev+0x102/0x170
[ 5919.156602][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5919.156602][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5919.156602][   T73]      netlink_rcv_skb+0x130/0x360
[ 5919.156602][   T73]      netlink_unicast+0x449/0x710
[ 5919.156602][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5919.156602][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5919.156602][   T73]      ___sys_sendmsg+0xee/0x170
[ 5919.156602][   T73]      __sys_sendmsg+0xcd/0x170
[ 5919.156602][   T73]      do_syscall_64+0xc6/0x1e0
[ 5919.156602][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5919.156602][   T73] 
[ 5919.158497][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5919.158813][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5919.158813][   T73]      netdev_get_by_index+0x5e/0x80
[ 5919.158813][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5919.158813][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5919.158813][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5919.158813][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5919.158813][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5919.158813][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5919.158813][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5919.158813][   T73]      addrconf_dad_begin+0x310/0x670
[ 5919.158813][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5919.158813][   T73]      process_one_work+0x84d/0x18a0
[ 5919.158813][   T73]      worker_thread+0x587/0xd30
[ 5919.158813][   T73]      kthread+0x28a/0x350
[ 5919.158813][   T73]      ret_from_fork+0x31/0x70
[ 5919.158813][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5919.158813][   T73] 
[ 5919.160956][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5919.160956][   T73]      netdev_get_by_index+0x5e/0x80
[ 5919.160956][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5919.160956][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5919.160956][   T73]      ip6_route_add+0x1c/0x140
[ 5919.160956][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5919.160956][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5919.160956][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5919.160956][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5919.160956][   T73]      netlink_rcv_skb+0x130/0x360
[ 5919.160956][   T73]      netlink_unicast+0x449/0x710
[ 5919.160956][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5919.160956][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5919.160956][   T73]      ___sys_sendmsg+0xee/0x170
[ 5919.160956][   T73]      __sys_sendmsg+0xcd/0x170
[ 5919.160956][   T73]      do_syscall_64+0xc6/0x1e0
[ 5919.160956][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5919.160956][   T73] 
[ 5919.163195][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5919.163195][   T73]      netdev_get_by_index+0x5e/0x80
[ 5919.163195][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5919.163195][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5919.163195][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5919.163195][   T73]      ipv6_add_addr+0x411/0x2000
[ 5919.163195][   T73]      inet6_addr_add+0x30e/0xa40
[ 5919.163195][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5919.163195][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5919.163195][   T73]      netlink_rcv_skb+0x130/0x360
[ 5919.163195][   T73]      netlink_unicast+0x449/0x710
[ 5919.163195][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5919.163195][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5919.163195][   T73]      ___sys_sendmsg+0xee/0x170
[ 5919.163195][   T73]      __sys_sendmsg+0xcd/0x170
[ 5919.163195][   T73]      do_syscall_64+0xc6/0x1e0
[ 5919.163195][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5919.163195][   T73] 
[ 5919.165433][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5919.165433][   T73]      netdev_get_by_index+0x5e/0x80
[ 5919.165433][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5919.165433][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5919.165433][   T73]      ip6_route_add+0x1c/0x140
[ 5919.165433][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5919.165433][   T73]      addrconf_add_dev+0xe2/0x170
[ 5919.165433][   T73]      inet6_addr_add+0x12f/0xa40
[ 5919.165433][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5919.165433][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5919.165433][   T73]      netlink_rcv_skb+0x130/0x360
[ 5919.165433][   T73]      netlink_unicast+0x449/0x710
[ 5919.165433][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5919.165433][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5919.165433][   T73]      ___sys_sendmsg+0xee/0x170
[ 5919.165433][   T73]      __sys_sendmsg+0xcd/0x170
[ 5919.165433][   T73]      do_syscall_64+0xc6/0x1e0
[ 5919.165433][   T73] 
[ 5919.167655][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5919.167655][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5919.167655][   T73]      ipv6_find_idev+0x102/0x170
[ 5919.167655][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5919.167655][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5919.167655][   T73]      netlink_rcv_skb+0x130/0x360
[ 5919.167655][   T73]      netlink_unicast+0x449/0x710
[ 5919.167655][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5919.167655][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5919.167655][   T73]      ___sys_sendmsg+0xee/0x170
[ 5919.167655][   T73]      __sys_sendmsg+0xcd/0x170
[ 5919.167655][   T73]      do_syscall_64+0xc6/0x1e0
[ 5919.167655][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5919.167655][   T73] 
[ 5919.169377][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5919.169377][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5919.169377][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5919.169377][   T73]      ipv6_find_idev+0x102/0x170
[ 5919.169377][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5919.169377][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5919.169377][   T73]      netlink_rcv_skb+0x130/0x360
[ 5919.169377][   T73]      netlink_unicast+0x449/0x710
[ 5919.169377][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5919.169377][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5919.169377][   T73]      ___sys_sendmsg+0xee/0x170
[ 5919.169377][   T73]      __sys_sendmsg+0xcd/0x170
[ 5919.169377][   T73]      do_syscall_64+0xc6/0x1e0
[ 5919.169377][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5919.169377][   T73] 
[ 5919.171275][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5919.171563][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5919.171563][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5919.171563][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5919.171563][   T73]      fib6_nh_init+0xa22/0x1580
[ 5919.171563][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5919.171563][   T73]      ip6_route_add+0x1c/0x140
[ 5919.171563][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5919.171563][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5919.171563][   T73]      netlink_rcv_skb+0x130/0x360
[ 5919.171563][   T73]      netlink_unicast+0x449/0x710
[ 5919.171563][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5919.171563][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5919.171563][   T73]      ___sys_sendmsg+0xee/0x170
[ 5919.171563][   T73]      __sys_sendmsg+0xcd/0x170
[ 5919.171563][   T73]      do_syscall_64+0xc6/0x1e0
[ 5919.171563][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5919.171563][   T73] 
[ 5919.173839][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5919.173839][   T73]      dst_init+0x84/0x4a0
[ 5919.173839][   T73]      dst_alloc+0x97/0x150
[ 5919.173839][   T73]      ip6_dst_alloc+0x23/0x90
[ 5919.173839][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5919.173839][   T73]      ip6_pol_route+0x56f/0x840
[ 5919.173839][   T73]      fib6_rule_lookup+0x456/0x630
[ 5919.173839][   T73]      ip6_route_input+0x59c/0xa50
[ 5919.173839][   T73]      ipv6_rcv+0x397/0x810
[ 5919.173839][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5919.173839][   T73]      process_backlog+0x101/0x620
[ 5919.173839][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5919.173839][   T73]      net_rx_action+0x495/0xbe0
[ 5919.173839][   T73]      __do_softirq+0x1b5/0x7f6
[ 5919.173839][   T73] 
[ 5919.175900][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5919.175900][   T73]      netdev_get_by_index+0x5e/0x80
[ 5919.175900][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5919.175900][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5919.175900][   T73]      ip6_route_add+0x1c/0x140
[ 5919.175900][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5919.175900][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5919.175900][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5919.175900][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5919.175900][   T73]      netlink_rcv_skb+0x130/0x360
[ 5919.175900][   T73]      netlink_unicast+0x449/0x710
[ 5919.175900][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5919.175900][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5919.175900][   T73]      ___sys_sendmsg+0xee/0x170
[ 5919.175900][   T73]      __sys_sendmsg+0xcd/0x170
[ 5919.175900][   T73]      do_syscall_64+0xc6/0x1e0
[ 5919.175900][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5919.175900][   T73] 
[ 5919.178380][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5919.178380][   T73]      netdev_get_by_index+0x5e/0x80
[ 5919.178380][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5919.178380][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5919.178380][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5919.178380][   T73]      ipv6_add_addr+0x411/0x2000
[ 5919.178380][   T73]      inet6_addr_add+0x30e/0xa40
[ 5919.178380][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5919.178380][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5919.178380][   T73]      netlink_rcv_skb+0x130/0x360
[ 5919.178380][   T73]      netlink_unicast+0x449/0x710
[ 5919.178380][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5919.178380][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5919.178380][   T73]      ___sys_sendmsg+0xee/0x170
[ 5919.178380][   T73]      __sys_sendmsg+0xcd/0x170
[ 5919.178380][   T73]      do_syscall_64+0xc6/0x1e0
[ 5919.178380][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5919.178380][   T73] 
[ 5919.180790][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5919.180790][   T73]      netdev_get_by_index+0x5e/0x80
[ 5919.180790][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5919.180790][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5919.180790][   T73]      ip6_route_add+0x1c/0x140
[ 5919.180790][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5919.180790][   T73]      addrconf_add_dev+0xe2/0x170
[ 5919.180790][   T73]      inet6_addr_add+0x12f/0xa40
[ 5919.180790][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5919.180790][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5919.180790][   T73]      netlink_rcv_skb+0x130/0x360
[ 5919.180790][   T73]      netlink_unicast+0x449/0x710
[ 5919.180790][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5919.180790][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5919.180790][   T73]      ___sys_sendmsg+0xee/0x170
[ 5919.180790][   T73]      __sys_sendmsg+0xcd/0x170
[ 5919.180790][   T73]      do_syscall_64+0xc6/0x1e0
[ 5919.180790][   T73] 
[ 5919.183236][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5919.183236][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5919.183236][   T73]      ipv6_find_idev+0x102/0x170
[ 5919.183236][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5919.183236][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5919.183236][   T73]      netlink_rcv_skb+0x130/0x360
[ 5919.183236][   T73]      netlink_unicast+0x449/0x710
[ 5919.183236][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5919.183236][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5919.183236][   T73]      ___sys_sendmsg+0xee/0x170
[ 5919.183236][   T73]      __sys_sendmsg+0xcd/0x170
[ 5919.183236][   T73]      do_syscall_64+0xc6/0x1e0
[ 5919.183236][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5919.183236][   T73] 
[ 5919.185249][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5919.185249][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5919.185249][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5919.185249][   T73]      ipv6_find_idev+0x102/0x170
[ 5919.185249][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5919.185249][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5919.185249][   T73]      netlink_rcv_skb+0x130/0x360
[ 5919.185249][   T73]      netlink_unicast+0x449/0x710
[ 5919.185249][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5919.185249][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5919.185249][   T73]      ___sys_sendmsg+0xee/0x170
[ 5919.185249][   T73]      __sys_sendmsg+0xcd/0x170
[ 5919.185249][   T73]      do_syscall_64+0xc6/0x1e0
[ 5919.185249][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5919.185249][   T73] 
[ 5919.187333][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5919.188148][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5919.188148][   T73]      netdev_get_by_index+0x5e/0x80
[ 5919.188148][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5919.188148][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5919.188148][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5919.188148][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5919.188148][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5919.188148][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5919.188148][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5919.188148][   T73]      addrconf_dad_begin+0x310/0x670
[ 5919.188148][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5919.188148][   T73]      process_one_work+0x84d/0x18a0
[ 5919.188148][   T73]      worker_thread+0x587/0xd30
[ 5919.188148][   T73]      kthread+0x28a/0x350
[ 5919.188148][   T73]      ret_from_fork+0x31/0x70
[ 5919.188148][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5919.188148][   T73] 
[ 5919.190301][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5919.190301][   T73]      netdev_get_by_index+0x5e/0x80
[ 5919.190301][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5919.190301][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5919.190301][   T73]      ip6_route_add+0x1c/0x140
[ 5919.190301][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5919.190301][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5919.190301][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5919.190301][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5919.190301][   T73]      netlink_rcv_skb+0x130/0x360
[ 5919.190301][   T73]      netlink_unicast+0x449/0x710
[ 5919.190301][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5919.190301][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5919.190301][   T73]      ___sys_sendmsg+0xee/0x170
[ 5919.190301][   T73]      __sys_sendmsg+0xcd/0x170
[ 5919.190301][   T73]      do_syscall_64+0xc6/0x1e0
[ 5919.190301][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5919.190301][   T73] 
[ 5919.192535][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5919.192535][   T73]      netdev_get_by_index+0x5e/0x80
[ 5919.192535][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5919.192535][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5919.192535][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5919.192535][   T73]      ipv6_add_addr+0x411/0x2000
[ 5919.192535][   T73]      inet6_addr_add+0x30e/0xa40
[ 5919.192535][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5919.192535][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5919.192535][   T73]      netlink_rcv_skb+0x130/0x360
[ 5919.192535][   T73]      netlink_unicast+0x449/0x710
[ 5919.192535][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5919.192535][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5919.192535][   T73]      ___sys_sendmsg+0xee/0x170
[ 5919.192535][   T73]      __sys_sendmsg+0xcd/0x170
[ 5919.192535][   T73]      do_syscall_64+0xc6/0x1e0
[ 5919.192535][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5919.192535][   T73] 
[ 5919.195021][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5919.195021][   T73]      netdev_get_by_index+0x5e/0x80
[ 5919.195021][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5919.195021][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5919.195021][   T73]      ip6_route_add+0x1c/0x140
[ 5919.195021][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5919.195021][   T73]      addrconf_add_dev+0xe2/0x170
[ 5919.195021][   T73]      inet6_addr_add+0x12f/0xa40
[ 5919.195021][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5919.195021][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5919.195021][   T73]      netlink_rcv_skb+0x130/0x360
[ 5919.195021][   T73]      netlink_unicast+0x449/0x710
[ 5919.195021][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5919.195021][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5919.195021][   T73]      ___sys_sendmsg+0xee/0x170
[ 5919.195021][   T73]      __sys_sendmsg+0xcd/0x170
[ 5919.195021][   T73]      do_syscall_64+0xc6/0x1e0
[ 5919.195021][   T73] 
[ 5919.197483][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5919.197483][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5919.197483][   T73]      ipv6_find_idev+0x102/0x170
[ 5919.197483][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5919.197483][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5919.197483][   T73]      netlink_rcv_skb+0x130/0x360
[ 5919.197483][   T73]      netlink_unicast+0x449/0x710
[ 5919.197483][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5919.197483][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5919.197483][   T73]      ___sys_sendmsg+0xee/0x170
[ 5919.197483][   T73]      __sys_sendmsg+0xcd/0x170
[ 5919.197483][   T73]      do_syscall_64+0xc6/0x1e0
[ 5919.197483][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5919.197483][   T73] 
[ 5919.199436][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5919.199436][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5919.199436][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5919.199436][   T73]      ipv6_find_idev+0x102/0x170
[ 5919.199436][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5919.199436][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5919.199436][   T73]      netlink_rcv_skb+0x130/0x360
[ 5919.199436][   T73]      netlink_unicast+0x449/0x710
[ 5919.199436][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5919.199436][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5919.199436][   T73]      ___sys_sendmsg+0xee/0x170
[ 5919.199436][   T73]      __sys_sendmsg+0xcd/0x170
[ 5919.199436][   T73]      do_syscall_64+0xc6/0x1e0
[ 5919.199436][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5919.199436][   T73] 
[ 5929.439681][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5929.440186][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5929.440186][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5929.440186][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5929.440186][   T73]      fib6_nh_init+0xa22/0x1580
[ 5929.440186][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5929.440186][   T73]      ip6_route_add+0x1c/0x140
[ 5929.440186][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5929.440186][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5929.440186][   T73]      netlink_rcv_skb+0x130/0x360
[ 5929.440186][   T73]      netlink_unicast+0x449/0x710
[ 5929.440186][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5929.440186][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5929.440186][   T73]      ___sys_sendmsg+0xee/0x170
[ 5929.440186][   T73]      __sys_sendmsg+0xcd/0x170
[ 5929.440186][   T73]      do_syscall_64+0xc6/0x1e0
[ 5929.440186][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5929.440186][   T73] 
[ 5929.442112][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5929.442112][   T73]      dst_init+0x84/0x4a0
[ 5929.442112][   T73]      dst_alloc+0x97/0x150
[ 5929.442112][   T73]      ip6_dst_alloc+0x23/0x90
[ 5929.442112][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5929.442112][   T73]      ip6_pol_route+0x56f/0x840
[ 5929.442112][   T73]      fib6_rule_lookup+0x456/0x630
[ 5929.442112][   T73]      ip6_route_input+0x59c/0xa50
[ 5929.442112][   T73]      ipv6_rcv+0x397/0x810
[ 5929.442112][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5929.442112][   T73]      process_backlog+0x101/0x620
[ 5929.442112][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5929.442112][   T73]      net_rx_action+0x495/0xbe0
[ 5929.442112][   T73]      __do_softirq+0x1b5/0x7f6
[ 5929.442112][   T73] 
[ 5929.443776][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5929.443776][   T73]      netdev_get_by_index+0x5e/0x80
[ 5929.443776][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5929.443776][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5929.443776][   T73]      ip6_route_add+0x1c/0x140
[ 5929.443776][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5929.443776][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5929.443776][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5929.443776][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5929.443776][   T73]      netlink_rcv_skb+0x130/0x360
[ 5929.443776][   T73]      netlink_unicast+0x449/0x710
[ 5929.443776][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5929.443776][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5929.443776][   T73]      ___sys_sendmsg+0xee/0x170
[ 5929.443776][   T73]      __sys_sendmsg+0xcd/0x170
[ 5929.443776][   T73]      do_syscall_64+0xc6/0x1e0
[ 5929.443776][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5929.443776][   T73] 
[ 5929.445829][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5929.445829][   T73]      netdev_get_by_index+0x5e/0x80
[ 5929.445829][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5929.445829][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5929.445829][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5929.445829][   T73]      ipv6_add_addr+0x411/0x2000
[ 5929.445829][   T73]      inet6_addr_add+0x30e/0xa40
[ 5929.445829][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5929.445829][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5929.445829][   T73]      netlink_rcv_skb+0x130/0x360
[ 5929.445829][   T73]      netlink_unicast+0x449/0x710
[ 5929.445829][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5929.445829][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5929.445829][   T73]      ___sys_sendmsg+0xee/0x170
[ 5929.445829][   T73]      __sys_sendmsg+0xcd/0x170
[ 5929.445829][   T73]      do_syscall_64+0xc6/0x1e0
[ 5929.445829][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5929.445829][   T73] 
[ 5929.447876][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5929.447876][   T73]      netdev_get_by_index+0x5e/0x80
[ 5929.447876][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5929.447876][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5929.447876][   T73]      ip6_route_add+0x1c/0x140
[ 5929.447876][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5929.447876][   T73]      addrconf_add_dev+0xe2/0x170
[ 5929.447876][   T73]      inet6_addr_add+0x12f/0xa40
[ 5929.447876][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5929.447876][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5929.447876][   T73]      netlink_rcv_skb+0x130/0x360
[ 5929.447876][   T73]      netlink_unicast+0x449/0x710
[ 5929.447876][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5929.447876][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5929.447876][   T73]      ___sys_sendmsg+0xee/0x170
[ 5929.447876][   T73]      __sys_sendmsg+0xcd/0x170
[ 5929.447876][   T73]      do_syscall_64+0xc6/0x1e0
[ 5929.447876][   T73] 
[ 5929.449869][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5929.449869][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5929.449869][   T73]      ipv6_find_idev+0x102/0x170
[ 5929.449869][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5929.449869][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5929.449869][   T73]      netlink_rcv_skb+0x130/0x360
[ 5929.449869][   T73]      netlink_unicast+0x449/0x710
[ 5929.449869][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5929.449869][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5929.449869][   T73]      ___sys_sendmsg+0xee/0x170
[ 5929.449869][   T73]      __sys_sendmsg+0xcd/0x170
[ 5929.449869][   T73]      do_syscall_64+0xc6/0x1e0
[ 5929.449869][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5929.449869][   T73] 
[ 5929.451432][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5929.451432][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5929.451432][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5929.451432][   T73]      ipv6_find_idev+0x102/0x170
[ 5929.451432][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5929.451432][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5929.451432][   T73]      netlink_rcv_skb+0x130/0x360
[ 5929.451432][   T73]      netlink_unicast+0x449/0x710
[ 5929.451432][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5929.451432][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5929.451432][   T73]      ___sys_sendmsg+0xee/0x170
[ 5929.451432][   T73]      __sys_sendmsg+0xcd/0x170
[ 5929.451432][   T73]      do_syscall_64+0xc6/0x1e0
[ 5929.451432][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5929.451432][   T73] 
[ 5929.453143][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5929.453438][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5929.453438][   T73]      netdev_get_by_index+0x5e/0x80
[ 5929.453438][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5929.453438][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5929.453438][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5929.453438][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5929.453438][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5929.453438][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5929.453438][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5929.453438][   T73]      addrconf_dad_begin+0x310/0x670
[ 5929.453438][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5929.453438][   T73]      process_one_work+0x84d/0x18a0
[ 5929.453438][   T73]      worker_thread+0x587/0xd30
[ 5929.453438][   T73]      kthread+0x28a/0x350
[ 5929.453438][   T73]      ret_from_fork+0x31/0x70
[ 5929.453438][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5929.453438][   T73] 
[ 5929.455389][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5929.455389][   T73]      netdev_get_by_index+0x5e/0x80
[ 5929.455389][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5929.455389][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5929.455389][   T73]      ip6_route_add+0x1c/0x140
[ 5929.455389][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5929.455389][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5929.455389][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5929.455389][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5929.455389][   T73]      netlink_rcv_skb+0x130/0x360
[ 5929.455389][   T73]      netlink_unicast+0x449/0x710
[ 5929.455389][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5929.455389][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5929.455389][   T73]      ___sys_sendmsg+0xee/0x170
[ 5929.455389][   T73]      __sys_sendmsg+0xcd/0x170
[ 5929.455389][   T73]      do_syscall_64+0xc6/0x1e0
[ 5929.455389][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5929.455389][   T73] 
[ 5929.457435][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5929.457435][   T73]      netdev_get_by_index+0x5e/0x80
[ 5929.457435][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5929.457435][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5929.457435][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5929.457435][   T73]      ipv6_add_addr+0x411/0x2000
[ 5929.457435][   T73]      inet6_addr_add+0x30e/0xa40
[ 5929.457435][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5929.457435][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5929.457435][   T73]      netlink_rcv_skb+0x130/0x360
[ 5929.457435][   T73]      netlink_unicast+0x449/0x710
[ 5929.457435][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5929.457435][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5929.457435][   T73]      ___sys_sendmsg+0xee/0x170
[ 5929.457435][   T73]      __sys_sendmsg+0xcd/0x170
[ 5929.457435][   T73]      do_syscall_64+0xc6/0x1e0
[ 5929.457435][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5929.457435][   T73] 
[ 5929.459462][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5929.459462][   T73]      netdev_get_by_index+0x5e/0x80
[ 5929.459462][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5929.459462][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5929.459462][   T73]      ip6_route_add+0x1c/0x140
[ 5929.459462][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5929.459462][   T73]      addrconf_add_dev+0xe2/0x170
[ 5929.459462][   T73]      inet6_addr_add+0x12f/0xa40
[ 5929.459462][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5929.459462][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5929.459462][   T73]      netlink_rcv_skb+0x130/0x360
[ 5929.459462][   T73]      netlink_unicast+0x449/0x710
[ 5929.459462][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5929.459462][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5929.459462][   T73]      ___sys_sendmsg+0xee/0x170
[ 5929.459462][   T73]      __sys_sendmsg+0xcd/0x170
[ 5929.459462][   T73]      do_syscall_64+0xc6/0x1e0
[ 5929.459462][   T73] 
[ 5929.461468][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5929.461468][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5929.461468][   T73]      ipv6_find_idev+0x102/0x170
[ 5929.461468][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5929.461468][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5929.461468][   T73]      netlink_rcv_skb+0x130/0x360
[ 5929.461468][   T73]      netlink_unicast+0x449/0x710
[ 5929.461468][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5929.461468][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5929.461468][   T73]      ___sys_sendmsg+0xee/0x170
[ 5929.461468][   T73]      __sys_sendmsg+0xcd/0x170
[ 5929.461468][   T73]      do_syscall_64+0xc6/0x1e0
[ 5929.461468][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5929.461468][   T73] 
[ 5929.463033][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5929.463033][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5929.463033][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5929.463033][   T73]      ipv6_find_idev+0x102/0x170
[ 5929.463033][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5929.463033][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5929.463033][   T73]      netlink_rcv_skb+0x130/0x360
[ 5929.463033][   T73]      netlink_unicast+0x449/0x710
[ 5929.463033][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5929.463033][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5929.463033][   T73]      ___sys_sendmsg+0xee/0x170
[ 5929.463033][   T73]      __sys_sendmsg+0xcd/0x170
[ 5929.463033][   T73]      do_syscall_64+0xc6/0x1e0
[ 5929.463033][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5929.463033][   T73] 
[ 5929.464753][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5929.465054][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5929.465054][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5929.465054][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5929.465054][   T73]      fib6_nh_init+0xa22/0x1580
[ 5929.465054][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5929.465054][   T73]      ip6_route_add+0x1c/0x140
[ 5929.465054][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5929.465054][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5929.465054][   T73]      netlink_rcv_skb+0x130/0x360
[ 5929.465054][   T73]      netlink_unicast+0x449/0x710
[ 5929.465054][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5929.465054][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5929.465054][   T73]      ___sys_sendmsg+0xee/0x170
[ 5929.465054][   T73]      __sys_sendmsg+0xcd/0x170
[ 5929.465054][   T73]      do_syscall_64+0xc6/0x1e0
[ 5929.465054][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5929.465054][   T73] 
[ 5929.467138][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5929.467138][   T73]      dst_init+0x84/0x4a0
[ 5929.467138][   T73]      dst_alloc+0x97/0x150
[ 5929.467138][   T73]      ip6_dst_alloc+0x23/0x90
[ 5929.467138][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5929.467138][   T73]      ip6_pol_route+0x56f/0x840
[ 5929.467138][   T73]      fib6_rule_lookup+0x456/0x630
[ 5929.467138][   T73]      ip6_route_input+0x59c/0xa50
[ 5929.467138][   T73]      ipv6_rcv+0x397/0x810
[ 5929.467138][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5929.467138][   T73]      process_backlog+0x101/0x620
[ 5929.467138][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5929.467138][   T73]      net_rx_action+0x495/0xbe0
[ 5929.467138][   T73]      __do_softirq+0x1b5/0x7f6
[ 5929.467138][   T73] 
[ 5929.468865][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5929.468865][   T73]      netdev_get_by_index+0x5e/0x80
[ 5929.468865][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5929.468865][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5929.468865][   T73]      ip6_route_add+0x1c/0x140
[ 5929.468865][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5929.468865][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5929.468865][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5929.468865][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5929.468865][   T73]      netlink_rcv_skb+0x130/0x360
[ 5929.468865][   T73]      netlink_unicast+0x449/0x710
[ 5929.468865][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5929.468865][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5929.468865][   T73]      ___sys_sendmsg+0xee/0x170
[ 5929.468865][   T73]      __sys_sendmsg+0xcd/0x170
[ 5929.468865][   T73]      do_syscall_64+0xc6/0x1e0
[ 5929.468865][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5929.468865][   T73] 
[ 5929.471044][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5929.471044][   T73]      netdev_get_by_index+0x5e/0x80
[ 5929.471044][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5929.471044][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5929.471044][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5929.471044][   T73]      ipv6_add_addr+0x411/0x2000
[ 5929.471044][   T73]      inet6_addr_add+0x30e/0xa40
[ 5929.471044][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5929.471044][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5929.471044][   T73]      netlink_rcv_skb+0x130/0x360
[ 5929.471044][   T73]      netlink_unicast+0x449/0x710
[ 5929.471044][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5929.471044][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5929.471044][   T73]      ___sys_sendmsg+0xee/0x170
[ 5929.471044][   T73]      __sys_sendmsg+0xcd/0x170
[ 5929.471044][   T73]      do_syscall_64+0xc6/0x1e0
[ 5929.471044][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5929.471044][   T73] 
[ 5929.473210][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5929.473210][   T73]      netdev_get_by_index+0x5e/0x80
[ 5929.473210][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5929.473210][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5929.473210][   T73]      ip6_route_add+0x1c/0x140
[ 5929.473210][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5929.473210][   T73]      addrconf_add_dev+0xe2/0x170
[ 5929.473210][   T73]      inet6_addr_add+0x12f/0xa40
[ 5929.473210][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5929.473210][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5929.473210][   T73]      netlink_rcv_skb+0x130/0x360
[ 5929.473210][   T73]      netlink_unicast+0x449/0x710
[ 5929.473210][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5929.473210][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5929.473210][   T73]      ___sys_sendmsg+0xee/0x170
[ 5929.473210][   T73]      __sys_sendmsg+0xcd/0x170
[ 5929.473210][   T73]      do_syscall_64+0xc6/0x1e0
[ 5929.473210][   T73] 
[ 5929.475358][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5929.475358][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5929.475358][   T73]      ipv6_find_idev+0x102/0x170
[ 5929.475358][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5929.475358][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5929.475358][   T73]      netlink_rcv_skb+0x130/0x360
[ 5929.475358][   T73]      netlink_unicast+0x449/0x710
[ 5929.475358][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5929.475358][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5929.475358][   T73]      ___sys_sendmsg+0xee/0x170
[ 5929.475358][   T73]      __sys_sendmsg+0xcd/0x170
[ 5929.475358][   T73]      do_syscall_64+0xc6/0x1e0
[ 5929.475358][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5929.475358][   T73] 
[ 5929.476999][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5929.476999][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5929.476999][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5929.476999][   T73]      ipv6_find_idev+0x102/0x170
[ 5929.476999][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5929.476999][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5929.476999][   T73]      netlink_rcv_skb+0x130/0x360
[ 5929.476999][   T73]      netlink_unicast+0x449/0x710
[ 5929.476999][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5929.476999][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5929.476999][   T73]      ___sys_sendmsg+0xee/0x170
[ 5929.476999][   T73]      __sys_sendmsg+0xcd/0x170
[ 5929.476999][   T73]      do_syscall_64+0xc6/0x1e0
[ 5929.476999][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5929.476999][   T73] 
[ 5929.478857][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5929.479126][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5929.479126][   T73]      netdev_get_by_index+0x5e/0x80
[ 5929.479126][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5929.479126][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5929.479126][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5929.479126][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5929.479126][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5929.479126][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5929.479126][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5929.479126][   T73]      addrconf_dad_begin+0x310/0x670
[ 5929.479126][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5929.479126][   T73]      process_one_work+0x84d/0x18a0
[ 5929.479126][   T73]      worker_thread+0x587/0xd30
[ 5929.479126][   T73]      kthread+0x28a/0x350
[ 5929.479126][   T73]      ret_from_fork+0x31/0x70
[ 5929.479126][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5929.479126][   T73] 
[ 5929.481218][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5929.481218][   T73]      netdev_get_by_index+0x5e/0x80
[ 5929.481218][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5929.481218][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5929.481218][   T73]      ip6_route_add+0x1c/0x140
[ 5929.481218][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5929.481218][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5929.481218][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5929.481218][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5929.481218][   T73]      netlink_rcv_skb+0x130/0x360
[ 5929.481218][   T73]      netlink_unicast+0x449/0x710
[ 5929.481218][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5929.481218][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5929.481218][   T73]      ___sys_sendmsg+0xee/0x170
[ 5929.481218][   T73]      __sys_sendmsg+0xcd/0x170
[ 5929.481218][   T73]      do_syscall_64+0xc6/0x1e0
[ 5929.481218][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5929.481218][   T73] 
[ 5929.483458][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5929.483458][   T73]      netdev_get_by_index+0x5e/0x80
[ 5929.483458][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5929.483458][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5929.483458][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5929.483458][   T73]      ipv6_add_addr+0x411/0x2000
[ 5929.483458][   T73]      inet6_addr_add+0x30e/0xa40
[ 5929.483458][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5929.483458][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5929.483458][   T73]      netlink_rcv_skb+0x130/0x360
[ 5929.483458][   T73]      netlink_unicast+0x449/0x710
[ 5929.483458][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5929.483458][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5929.483458][   T73]      ___sys_sendmsg+0xee/0x170
[ 5929.483458][   T73]      __sys_sendmsg+0xcd/0x170
[ 5929.483458][   T73]      do_syscall_64+0xc6/0x1e0
[ 5929.483458][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5929.483458][   T73] 
[ 5929.485564][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5929.485564][   T73]      netdev_get_by_index+0x5e/0x80
[ 5929.485564][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5929.485564][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5929.485564][   T73]      ip6_route_add+0x1c/0x140
[ 5929.485564][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5929.485564][   T73]      addrconf_add_dev+0xe2/0x170
[ 5929.485564][   T73]      inet6_addr_add+0x12f/0xa40
[ 5929.485564][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5929.485564][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5929.485564][   T73]      netlink_rcv_skb+0x130/0x360
[ 5929.485564][   T73]      netlink_unicast+0x449/0x710
[ 5929.485564][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5929.485564][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5929.485564][   T73]      ___sys_sendmsg+0xee/0x170
[ 5929.485564][   T73]      __sys_sendmsg+0xcd/0x170
[ 5929.485564][   T73]      do_syscall_64+0xc6/0x1e0
[ 5929.485564][   T73] 
[ 5929.487698][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5929.487698][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5929.487698][   T73]      ipv6_find_idev+0x102/0x170
[ 5929.487698][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5929.487698][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5929.487698][   T73]      netlink_rcv_skb+0x130/0x360
[ 5929.487698][   T73]      netlink_unicast+0x449/0x710
[ 5929.487698][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5929.487698][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5929.487698][   T73]      ___sys_sendmsg+0xee/0x170
[ 5929.487698][   T73]      __sys_sendmsg+0xcd/0x170
[ 5929.487698][   T73]      do_syscall_64+0xc6/0x1e0
[ 5929.487698][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5929.487698][   T73] 
[ 5929.489404][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5929.489404][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5929.489404][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5929.489404][   T73]      ipv6_find_idev+0x102/0x170
[ 5929.489404][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5929.489404][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5929.489404][   T73]      netlink_rcv_skb+0x130/0x360
[ 5929.489404][   T73]      netlink_unicast+0x449/0x710
[ 5929.489404][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5929.489404][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5929.489404][   T73]      ___sys_sendmsg+0xee/0x170
[ 5929.489404][   T73]      __sys_sendmsg+0xcd/0x170
[ 5929.489404][   T73]      do_syscall_64+0xc6/0x1e0
[ 5929.489404][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5929.489404][   T73] 
[ 5939.551687][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5939.552137][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5939.552137][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5939.552137][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5939.552137][   T73]      fib6_nh_init+0xa22/0x1580
[ 5939.552137][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5939.552137][   T73]      ip6_route_add+0x1c/0x140
[ 5939.552137][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5939.552137][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5939.552137][   T73]      netlink_rcv_skb+0x130/0x360
[ 5939.552137][   T73]      netlink_unicast+0x449/0x710
[ 5939.552137][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5939.552137][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5939.552137][   T73]      ___sys_sendmsg+0xee/0x170
[ 5939.552137][   T73]      __sys_sendmsg+0xcd/0x170
[ 5939.552137][   T73]      do_syscall_64+0xc6/0x1e0
[ 5939.552137][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5939.552137][   T73] 
[ 5939.554071][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5939.554071][   T73]      dst_init+0x84/0x4a0
[ 5939.554071][   T73]      dst_alloc+0x97/0x150
[ 5939.554071][   T73]      ip6_dst_alloc+0x23/0x90
[ 5939.554071][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5939.554071][   T73]      ip6_pol_route+0x56f/0x840
[ 5939.554071][   T73]      fib6_rule_lookup+0x456/0x630
[ 5939.554071][   T73]      ip6_route_input+0x59c/0xa50
[ 5939.554071][   T73]      ipv6_rcv+0x397/0x810
[ 5939.554071][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5939.554071][   T73]      process_backlog+0x101/0x620
[ 5939.554071][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5939.554071][   T73]      net_rx_action+0x495/0xbe0
[ 5939.554071][   T73]      __do_softirq+0x1b5/0x7f6
[ 5939.554071][   T73] 
[ 5939.555724][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5939.555724][   T73]      netdev_get_by_index+0x5e/0x80
[ 5939.555724][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5939.555724][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5939.555724][   T73]      ip6_route_add+0x1c/0x140
[ 5939.555724][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5939.555724][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5939.555724][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5939.555724][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5939.555724][   T73]      netlink_rcv_skb+0x130/0x360
[ 5939.555724][   T73]      netlink_unicast+0x449/0x710
[ 5939.555724][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5939.555724][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5939.555724][   T73]      ___sys_sendmsg+0xee/0x170
[ 5939.555724][   T73]      __sys_sendmsg+0xcd/0x170
[ 5939.555724][   T73]      do_syscall_64+0xc6/0x1e0
[ 5939.555724][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5939.555724][   T73] 
[ 5939.557744][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5939.557744][   T73]      netdev_get_by_index+0x5e/0x80
[ 5939.557744][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5939.557744][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5939.557744][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5939.557744][   T73]      ipv6_add_addr+0x411/0x2000
[ 5939.557744][   T73]      inet6_addr_add+0x30e/0xa40
[ 5939.557744][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5939.557744][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5939.557744][   T73]      netlink_rcv_skb+0x130/0x360
[ 5939.557744][   T73]      netlink_unicast+0x449/0x710
[ 5939.557744][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5939.557744][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5939.557744][   T73]      ___sys_sendmsg+0xee/0x170
[ 5939.557744][   T73]      __sys_sendmsg+0xcd/0x170
[ 5939.557744][   T73]      do_syscall_64+0xc6/0x1e0
[ 5939.557744][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5939.557744][   T73] 
[ 5939.559770][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5939.559770][   T73]      netdev_get_by_index+0x5e/0x80
[ 5939.559770][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5939.559770][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5939.559770][   T73]      ip6_route_add+0x1c/0x140
[ 5939.559770][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5939.559770][   T73]      addrconf_add_dev+0xe2/0x170
[ 5939.559770][   T73]      inet6_addr_add+0x12f/0xa40
[ 5939.559770][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5939.559770][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5939.559770][   T73]      netlink_rcv_skb+0x130/0x360
[ 5939.559770][   T73]      netlink_unicast+0x449/0x710
[ 5939.559770][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5939.559770][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5939.559770][   T73]      ___sys_sendmsg+0xee/0x170
[ 5939.559770][   T73]      __sys_sendmsg+0xcd/0x170
[ 5939.559770][   T73]      do_syscall_64+0xc6/0x1e0
[ 5939.559770][   T73] 
[ 5939.561745][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5939.561745][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5939.561745][   T73]      ipv6_find_idev+0x102/0x170
[ 5939.561745][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5939.561745][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5939.561745][   T73]      netlink_rcv_skb+0x130/0x360
[ 5939.561745][   T73]      netlink_unicast+0x449/0x710
[ 5939.561745][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5939.561745][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5939.561745][   T73]      ___sys_sendmsg+0xee/0x170
[ 5939.561745][   T73]      __sys_sendmsg+0xcd/0x170
[ 5939.561745][   T73]      do_syscall_64+0xc6/0x1e0
[ 5939.561745][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5939.561745][   T73] 
[ 5939.563299][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5939.563299][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5939.563299][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5939.563299][   T73]      ipv6_find_idev+0x102/0x170
[ 5939.563299][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5939.563299][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5939.563299][   T73]      netlink_rcv_skb+0x130/0x360
[ 5939.563299][   T73]      netlink_unicast+0x449/0x710
[ 5939.563299][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5939.563299][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5939.563299][   T73]      ___sys_sendmsg+0xee/0x170
[ 5939.563299][   T73]      __sys_sendmsg+0xcd/0x170
[ 5939.563299][   T73]      do_syscall_64+0xc6/0x1e0
[ 5939.563299][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5939.563299][   T73] 
[ 5939.565005][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5939.565290][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5939.565290][   T73]      netdev_get_by_index+0x5e/0x80
[ 5939.565290][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5939.565290][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5939.565290][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5939.565290][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5939.565290][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5939.565290][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5939.565290][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5939.565290][   T73]      addrconf_dad_begin+0x310/0x670
[ 5939.565290][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5939.565290][   T73]      process_one_work+0x84d/0x18a0
[ 5939.565290][   T73]      worker_thread+0x587/0xd30
[ 5939.565290][   T73]      kthread+0x28a/0x350
[ 5939.565290][   T73]      ret_from_fork+0x31/0x70
[ 5939.565290][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5939.565290][   T73] 
[ 5939.567222][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5939.567222][   T73]      netdev_get_by_index+0x5e/0x80
[ 5939.567222][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5939.567222][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5939.567222][   T73]      ip6_route_add+0x1c/0x140
[ 5939.567222][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5939.567222][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5939.567222][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5939.567222][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5939.567222][   T73]      netlink_rcv_skb+0x130/0x360
[ 5939.567222][   T73]      netlink_unicast+0x449/0x710
[ 5939.567222][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5939.567222][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5939.567222][   T73]      ___sys_sendmsg+0xee/0x170
[ 5939.567222][   T73]      __sys_sendmsg+0xcd/0x170
[ 5939.567222][   T73]      do_syscall_64+0xc6/0x1e0
[ 5939.567222][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5939.567222][   T73] 
[ 5939.569237][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5939.569237][   T73]      netdev_get_by_index+0x5e/0x80
[ 5939.569237][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5939.569237][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5939.569237][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5939.569237][   T73]      ipv6_add_addr+0x411/0x2000
[ 5939.569237][   T73]      inet6_addr_add+0x30e/0xa40
[ 5939.569237][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5939.569237][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5939.569237][   T73]      netlink_rcv_skb+0x130/0x360
[ 5939.569237][   T73]      netlink_unicast+0x449/0x710
[ 5939.569237][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5939.569237][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5939.569237][   T73]      ___sys_sendmsg+0xee/0x170
[ 5939.569237][   T73]      __sys_sendmsg+0xcd/0x170
[ 5939.569237][   T73]      do_syscall_64+0xc6/0x1e0
[ 5939.569237][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5939.569237][   T73] 
[ 5939.571255][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5939.571255][   T73]      netdev_get_by_index+0x5e/0x80
[ 5939.571255][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5939.571255][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5939.571255][   T73]      ip6_route_add+0x1c/0x140
[ 5939.571255][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5939.571255][   T73]      addrconf_add_dev+0xe2/0x170
[ 5939.571255][   T73]      inet6_addr_add+0x12f/0xa40
[ 5939.571255][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5939.571255][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5939.571255][   T73]      netlink_rcv_skb+0x130/0x360
[ 5939.571255][   T73]      netlink_unicast+0x449/0x710
[ 5939.571255][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5939.571255][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5939.571255][   T73]      ___sys_sendmsg+0xee/0x170
[ 5939.571255][   T73]      __sys_sendmsg+0xcd/0x170
[ 5939.571255][   T73]      do_syscall_64+0xc6/0x1e0
[ 5939.571255][   T73] 
[ 5939.573229][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5939.573229][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5939.573229][   T73]      ipv6_find_idev+0x102/0x170
[ 5939.573229][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5939.573229][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5939.573229][   T73]      netlink_rcv_skb+0x130/0x360
[ 5939.573229][   T73]      netlink_unicast+0x449/0x710
[ 5939.573229][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5939.573229][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5939.573229][   T73]      ___sys_sendmsg+0xee/0x170
[ 5939.573229][   T73]      __sys_sendmsg+0xcd/0x170
[ 5939.573229][   T73]      do_syscall_64+0xc6/0x1e0
[ 5939.573229][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5939.573229][   T73] 
[ 5939.574793][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5939.574793][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5939.574793][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5939.574793][   T73]      ipv6_find_idev+0x102/0x170
[ 5939.574793][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5939.574793][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5939.574793][   T73]      netlink_rcv_skb+0x130/0x360
[ 5939.574793][   T73]      netlink_unicast+0x449/0x710
[ 5939.574793][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5939.574793][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5939.574793][   T73]      ___sys_sendmsg+0xee/0x170
[ 5939.574793][   T73]      __sys_sendmsg+0xcd/0x170
[ 5939.574793][   T73]      do_syscall_64+0xc6/0x1e0
[ 5939.574793][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5939.574793][   T73] 
[ 5939.576482][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5939.576771][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5939.576771][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5939.576771][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5939.576771][   T73]      fib6_nh_init+0xa22/0x1580
[ 5939.576771][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5939.576771][   T73]      ip6_route_add+0x1c/0x140
[ 5939.576771][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5939.576771][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5939.576771][   T73]      netlink_rcv_skb+0x130/0x360
[ 5939.576771][   T73]      netlink_unicast+0x449/0x710
[ 5939.576771][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5939.576771][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5939.576771][   T73]      ___sys_sendmsg+0xee/0x170
[ 5939.576771][   T73]      __sys_sendmsg+0xcd/0x170
[ 5939.576771][   T73]      do_syscall_64+0xc6/0x1e0
[ 5939.576771][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5939.576771][   T73] 
[ 5939.578800][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5939.578800][   T73]      dst_init+0x84/0x4a0
[ 5939.578800][   T73]      dst_alloc+0x97/0x150
[ 5939.578800][   T73]      ip6_dst_alloc+0x23/0x90
[ 5939.578800][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5939.578800][   T73]      ip6_pol_route+0x56f/0x840
[ 5939.578800][   T73]      fib6_rule_lookup+0x456/0x630
[ 5939.578800][   T73]      ip6_route_input+0x59c/0xa50
[ 5939.578800][   T73]      ipv6_rcv+0x397/0x810
[ 5939.578800][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5939.578800][   T73]      process_backlog+0x101/0x620
[ 5939.578800][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5939.578800][   T73]      net_rx_action+0x495/0xbe0
[ 5939.578800][   T73]      __do_softirq+0x1b5/0x7f6
[ 5939.578800][   T73] 
[ 5939.580503][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5939.580503][   T73]      netdev_get_by_index+0x5e/0x80
[ 5939.580503][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5939.580503][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5939.580503][   T73]      ip6_route_add+0x1c/0x140
[ 5939.580503][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5939.580503][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5939.580503][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5939.580503][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5939.580503][   T73]      netlink_rcv_skb+0x130/0x360
[ 5939.580503][   T73]      netlink_unicast+0x449/0x710
[ 5939.580503][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5939.580503][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5939.580503][   T73]      ___sys_sendmsg+0xee/0x170
[ 5939.580503][   T73]      __sys_sendmsg+0xcd/0x170
[ 5939.580503][   T73]      do_syscall_64+0xc6/0x1e0
[ 5939.580503][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5939.580503][   T73] 
[ 5939.582630][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5939.582630][   T73]      netdev_get_by_index+0x5e/0x80
[ 5939.582630][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5939.582630][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5939.582630][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5939.582630][   T73]      ipv6_add_addr+0x411/0x2000
[ 5939.582630][   T73]      inet6_addr_add+0x30e/0xa40
[ 5939.582630][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5939.582630][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5939.582630][   T73]      netlink_rcv_skb+0x130/0x360
[ 5939.582630][   T73]      netlink_unicast+0x449/0x710
[ 5939.582630][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5939.582630][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5939.582630][   T73]      ___sys_sendmsg+0xee/0x170
[ 5939.582630][   T73]      __sys_sendmsg+0xcd/0x170
[ 5939.582630][   T73]      do_syscall_64+0xc6/0x1e0
[ 5939.582630][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5939.582630][   T73] 
[ 5939.584753][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5939.584753][   T73]      netdev_get_by_index+0x5e/0x80
[ 5939.584753][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5939.584753][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5939.584753][   T73]      ip6_route_add+0x1c/0x140
[ 5939.584753][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5939.584753][   T73]      addrconf_add_dev+0xe2/0x170
[ 5939.584753][   T73]      inet6_addr_add+0x12f/0xa40
[ 5939.584753][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5939.584753][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5939.584753][   T73]      netlink_rcv_skb+0x130/0x360
[ 5939.584753][   T73]      netlink_unicast+0x449/0x710
[ 5939.584753][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5939.584753][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5939.584753][   T73]      ___sys_sendmsg+0xee/0x170
[ 5939.584753][   T73]      __sys_sendmsg+0xcd/0x170
[ 5939.584753][   T73]      do_syscall_64+0xc6/0x1e0
[ 5939.584753][   T73] 
[ 5939.586838][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5939.586838][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5939.586838][   T73]      ipv6_find_idev+0x102/0x170
[ 5939.586838][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5939.586838][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5939.586838][   T73]      netlink_rcv_skb+0x130/0x360
[ 5939.586838][   T73]      netlink_unicast+0x449/0x710
[ 5939.586838][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5939.586838][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5939.586838][   T73]      ___sys_sendmsg+0xee/0x170
[ 5939.586838][   T73]      __sys_sendmsg+0xcd/0x170
[ 5939.586838][   T73]      do_syscall_64+0xc6/0x1e0
[ 5939.586838][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5939.586838][   T73] 
[ 5939.588508][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5939.588508][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5939.588508][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5939.588508][   T73]      ipv6_find_idev+0x102/0x170
[ 5939.588508][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5939.588508][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5939.588508][   T73]      netlink_rcv_skb+0x130/0x360
[ 5939.588508][   T73]      netlink_unicast+0x449/0x710
[ 5939.588508][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5939.588508][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5939.588508][   T73]      ___sys_sendmsg+0xee/0x170
[ 5939.588508][   T73]      __sys_sendmsg+0xcd/0x170
[ 5939.588508][   T73]      do_syscall_64+0xc6/0x1e0
[ 5939.588508][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5939.588508][   T73] 
[ 5939.590324][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5939.590598][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5939.590598][   T73]      netdev_get_by_index+0x5e/0x80
[ 5939.590598][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5939.590598][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5939.590598][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5939.590598][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5939.590598][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5939.590598][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5939.590598][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5939.590598][   T73]      addrconf_dad_begin+0x310/0x670
[ 5939.590598][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5939.590598][   T73]      process_one_work+0x84d/0x18a0
[ 5939.590598][   T73]      worker_thread+0x587/0xd30
[ 5939.590598][   T73]      kthread+0x28a/0x350
[ 5939.590598][   T73]      ret_from_fork+0x31/0x70
[ 5939.590598][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5939.590598][   T73] 
[ 5939.592642][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5939.592642][   T73]      netdev_get_by_index+0x5e/0x80
[ 5939.592642][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5939.592642][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5939.592642][   T73]      ip6_route_add+0x1c/0x140
[ 5939.592642][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5939.592642][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5939.592642][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5939.592642][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5939.592642][   T73]      netlink_rcv_skb+0x130/0x360
[ 5939.592642][   T73]      netlink_unicast+0x449/0x710
[ 5939.592642][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5939.592642][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5939.592642][   T73]      ___sys_sendmsg+0xee/0x170
[ 5939.592642][   T73]      __sys_sendmsg+0xcd/0x170
[ 5939.592642][   T73]      do_syscall_64+0xc6/0x1e0
[ 5939.592642][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5939.592642][   T73] 
[ 5939.594786][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5939.594786][   T73]      netdev_get_by_index+0x5e/0x80
[ 5939.594786][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5939.594786][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5939.594786][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5939.594786][   T73]      ipv6_add_addr+0x411/0x2000
[ 5939.594786][   T73]      inet6_addr_add+0x30e/0xa40
[ 5939.594786][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5939.594786][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5939.594786][   T73]      netlink_rcv_skb+0x130/0x360
[ 5939.594786][   T73]      netlink_unicast+0x449/0x710
[ 5939.594786][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5939.594786][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5939.594786][   T73]      ___sys_sendmsg+0xee/0x170
[ 5939.594786][   T73]      __sys_sendmsg+0xcd/0x170
[ 5939.594786][   T73]      do_syscall_64+0xc6/0x1e0
[ 5939.594786][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5939.594786][   T73] 
[ 5939.596923][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5939.596923][   T73]      netdev_get_by_index+0x5e/0x80
[ 5939.596923][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5939.596923][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5939.596923][   T73]      ip6_route_add+0x1c/0x140
[ 5939.596923][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5939.596923][   T73]      addrconf_add_dev+0xe2/0x170
[ 5939.596923][   T73]      inet6_addr_add+0x12f/0xa40
[ 5939.596923][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5939.596923][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5939.596923][   T73]      netlink_rcv_skb+0x130/0x360
[ 5939.596923][   T73]      netlink_unicast+0x449/0x710
[ 5939.596923][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5939.596923][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5939.596923][   T73]      ___sys_sendmsg+0xee/0x170
[ 5939.596923][   T73]      __sys_sendmsg+0xcd/0x170
[ 5939.596923][   T73]      do_syscall_64+0xc6/0x1e0
[ 5939.596923][   T73] 
[ 5939.599031][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5939.599031][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5939.599031][   T73]      ipv6_find_idev+0x102/0x170
[ 5939.599031][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5939.599031][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5939.599031][   T73]      netlink_rcv_skb+0x130/0x360
[ 5939.599031][   T73]      netlink_unicast+0x449/0x710
[ 5939.599031][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5939.599031][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5939.599031][   T73]      ___sys_sendmsg+0xee/0x170
[ 5939.599031][   T73]      __sys_sendmsg+0xcd/0x170
[ 5939.599031][   T73]      do_syscall_64+0xc6/0x1e0
[ 5939.599031][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5939.599031][   T73] 
[ 5939.600664][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5939.600664][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5939.600664][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5939.600664][   T73]      ipv6_find_idev+0x102/0x170
[ 5939.600664][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5939.600664][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5939.600664][   T73]      netlink_rcv_skb+0x130/0x360
[ 5939.600664][   T73]      netlink_unicast+0x449/0x710
[ 5939.600664][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5939.600664][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5939.600664][   T73]      ___sys_sendmsg+0xee/0x170
[ 5939.600664][   T73]      __sys_sendmsg+0xcd/0x170
[ 5939.600664][   T73]      do_syscall_64+0xc6/0x1e0
[ 5939.600664][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5939.600664][   T73] 
[ 5949.855769][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5949.856272][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5949.856272][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5949.856272][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5949.856272][   T73]      fib6_nh_init+0xa22/0x1580
[ 5949.856272][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5949.856272][   T73]      ip6_route_add+0x1c/0x140
[ 5949.856272][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5949.856272][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5949.856272][   T73]      netlink_rcv_skb+0x130/0x360
[ 5949.856272][   T73]      netlink_unicast+0x449/0x710
[ 5949.856272][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5949.856272][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5949.856272][   T73]      ___sys_sendmsg+0xee/0x170
[ 5949.856272][   T73]      __sys_sendmsg+0xcd/0x170
[ 5949.856272][   T73]      do_syscall_64+0xc6/0x1e0
[ 5949.856272][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5949.856272][   T73] 
[ 5949.858423][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5949.858423][   T73]      dst_init+0x84/0x4a0
[ 5949.858423][   T73]      dst_alloc+0x97/0x150
[ 5949.858423][   T73]      ip6_dst_alloc+0x23/0x90
[ 5949.858423][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5949.858423][   T73]      ip6_pol_route+0x56f/0x840
[ 5949.858423][   T73]      fib6_rule_lookup+0x456/0x630
[ 5949.858423][   T73]      ip6_route_input+0x59c/0xa50
[ 5949.858423][   T73]      ipv6_rcv+0x397/0x810
[ 5949.858423][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5949.858423][   T73]      process_backlog+0x101/0x620
[ 5949.858423][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5949.858423][   T73]      net_rx_action+0x495/0xbe0
[ 5949.858423][   T73]      __do_softirq+0x1b5/0x7f6
[ 5949.858423][   T73] 
[ 5949.860362][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5949.860362][   T73]      netdev_get_by_index+0x5e/0x80
[ 5949.860362][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5949.860362][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5949.860362][   T73]      ip6_route_add+0x1c/0x140
[ 5949.860362][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5949.860362][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5949.860362][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5949.860362][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5949.860362][   T73]      netlink_rcv_skb+0x130/0x360
[ 5949.860362][   T73]      netlink_unicast+0x449/0x710
[ 5949.860362][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5949.860362][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5949.860362][   T73]      ___sys_sendmsg+0xee/0x170
[ 5949.860362][   T73]      __sys_sendmsg+0xcd/0x170
[ 5949.860362][   T73]      do_syscall_64+0xc6/0x1e0
[ 5949.860362][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5949.860362][   T73] 
[ 5949.862575][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5949.862575][   T73]      netdev_get_by_index+0x5e/0x80
[ 5949.862575][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5949.862575][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5949.862575][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5949.862575][   T73]      ipv6_add_addr+0x411/0x2000
[ 5949.862575][   T73]      inet6_addr_add+0x30e/0xa40
[ 5949.862575][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5949.862575][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5949.862575][   T73]      netlink_rcv_skb+0x130/0x360
[ 5949.862575][   T73]      netlink_unicast+0x449/0x710
[ 5949.862575][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5949.862575][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5949.862575][   T73]      ___sys_sendmsg+0xee/0x170
[ 5949.862575][   T73]      __sys_sendmsg+0xcd/0x170
[ 5949.862575][   T73]      do_syscall_64+0xc6/0x1e0
[ 5949.862575][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5949.862575][   T73] 
[ 5949.864813][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5949.864813][   T73]      netdev_get_by_index+0x5e/0x80
[ 5949.864813][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5949.864813][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5949.864813][   T73]      ip6_route_add+0x1c/0x140
[ 5949.864813][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5949.864813][   T73]      addrconf_add_dev+0xe2/0x170
[ 5949.864813][   T73]      inet6_addr_add+0x12f/0xa40
[ 5949.864813][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5949.864813][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5949.864813][   T73]      netlink_rcv_skb+0x130/0x360
[ 5949.864813][   T73]      netlink_unicast+0x449/0x710
[ 5949.864813][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5949.864813][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5949.864813][   T73]      ___sys_sendmsg+0xee/0x170
[ 5949.864813][   T73]      __sys_sendmsg+0xcd/0x170
[ 5949.864813][   T73]      do_syscall_64+0xc6/0x1e0
[ 5949.864813][   T73] 
[ 5949.867020][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5949.867020][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5949.867020][   T73]      ipv6_find_idev+0x102/0x170
[ 5949.867020][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5949.867020][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5949.867020][   T73]      netlink_rcv_skb+0x130/0x360
[ 5949.867020][   T73]      netlink_unicast+0x449/0x710
[ 5949.867020][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5949.867020][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5949.867020][   T73]      ___sys_sendmsg+0xee/0x170
[ 5949.867020][   T73]      __sys_sendmsg+0xcd/0x170
[ 5949.867020][   T73]      do_syscall_64+0xc6/0x1e0
[ 5949.867020][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5949.867020][   T73] 
[ 5949.868731][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5949.868731][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5949.868731][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5949.868731][   T73]      ipv6_find_idev+0x102/0x170
[ 5949.868731][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5949.868731][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5949.868731][   T73]      netlink_rcv_skb+0x130/0x360
[ 5949.868731][   T73]      netlink_unicast+0x449/0x710
[ 5949.868731][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5949.868731][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5949.868731][   T73]      ___sys_sendmsg+0xee/0x170
[ 5949.868731][   T73]      __sys_sendmsg+0xcd/0x170
[ 5949.868731][   T73]      do_syscall_64+0xc6/0x1e0
[ 5949.868731][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5949.868731][   T73] 
[ 5949.870615][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5949.870933][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5949.870933][   T73]      netdev_get_by_index+0x5e/0x80
[ 5949.870933][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5949.870933][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5949.870933][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5949.870933][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5949.870933][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5949.870933][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5949.870933][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5949.870933][   T73]      addrconf_dad_begin+0x310/0x670
[ 5949.870933][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5949.870933][   T73]      process_one_work+0x84d/0x18a0
[ 5949.870933][   T73]      worker_thread+0x587/0xd30
[ 5949.870933][   T73]      kthread+0x28a/0x350
[ 5949.870933][   T73]      ret_from_fork+0x31/0x70
[ 5949.870933][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5949.870933][   T73] 
[ 5949.873058][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5949.873058][   T73]      netdev_get_by_index+0x5e/0x80
[ 5949.873058][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5949.873058][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5949.873058][   T73]      ip6_route_add+0x1c/0x140
[ 5949.873058][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5949.873058][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5949.873058][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5949.873058][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5949.873058][   T73]      netlink_rcv_skb+0x130/0x360
[ 5949.873058][   T73]      netlink_unicast+0x449/0x710
[ 5949.873058][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5949.873058][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5949.873058][   T73]      ___sys_sendmsg+0xee/0x170
[ 5949.873058][   T73]      __sys_sendmsg+0xcd/0x170
[ 5949.873058][   T73]      do_syscall_64+0xc6/0x1e0
[ 5949.873058][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5949.873058][   T73] 
[ 5949.875282][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5949.875282][   T73]      netdev_get_by_index+0x5e/0x80
[ 5949.875282][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5949.875282][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5949.875282][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5949.875282][   T73]      ipv6_add_addr+0x411/0x2000
[ 5949.875282][   T73]      inet6_addr_add+0x30e/0xa40
[ 5949.875282][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5949.875282][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5949.875282][   T73]      netlink_rcv_skb+0x130/0x360
[ 5949.875282][   T73]      netlink_unicast+0x449/0x710
[ 5949.875282][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5949.875282][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5949.875282][   T73]      ___sys_sendmsg+0xee/0x170
[ 5949.875282][   T73]      __sys_sendmsg+0xcd/0x170
[ 5949.875282][   T73]      do_syscall_64+0xc6/0x1e0
[ 5949.875282][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5949.875282][   T73] 
[ 5949.877520][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5949.877520][   T73]      netdev_get_by_index+0x5e/0x80
[ 5949.877520][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5949.877520][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5949.877520][   T73]      ip6_route_add+0x1c/0x140
[ 5949.877520][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5949.877520][   T73]      addrconf_add_dev+0xe2/0x170
[ 5949.877520][   T73]      inet6_addr_add+0x12f/0xa40
[ 5949.877520][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5949.877520][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5949.877520][   T73]      netlink_rcv_skb+0x130/0x360
[ 5949.877520][   T73]      netlink_unicast+0x449/0x710
[ 5949.877520][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5949.877520][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5949.877520][   T73]      ___sys_sendmsg+0xee/0x170
[ 5949.877520][   T73]      __sys_sendmsg+0xcd/0x170
[ 5949.877520][   T73]      do_syscall_64+0xc6/0x1e0
[ 5949.877520][   T73] 
[ 5949.879716][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5949.879716][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5949.879716][   T73]      ipv6_find_idev+0x102/0x170
[ 5949.879716][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5949.879716][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5949.879716][   T73]      netlink_rcv_skb+0x130/0x360
[ 5949.879716][   T73]      netlink_unicast+0x449/0x710
[ 5949.879716][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5949.879716][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5949.879716][   T73]      ___sys_sendmsg+0xee/0x170
[ 5949.879716][   T73]      __sys_sendmsg+0xcd/0x170
[ 5949.879716][   T73]      do_syscall_64+0xc6/0x1e0
[ 5949.879716][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5949.879716][   T73] 
[ 5949.881431][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5949.881431][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5949.881431][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5949.881431][   T73]      ipv6_find_idev+0x102/0x170
[ 5949.881431][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5949.881431][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5949.881431][   T73]      netlink_rcv_skb+0x130/0x360
[ 5949.881431][   T73]      netlink_unicast+0x449/0x710
[ 5949.881431][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5949.881431][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5949.881431][   T73]      ___sys_sendmsg+0xee/0x170
[ 5949.881431][   T73]      __sys_sendmsg+0xcd/0x170
[ 5949.881431][   T73]      do_syscall_64+0xc6/0x1e0
[ 5949.881431][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5949.881431][   T73] 
[ 5949.883295][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5949.883587][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5949.883587][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5949.883587][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5949.883587][   T73]      fib6_nh_init+0xa22/0x1580
[ 5949.883587][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5949.883587][   T73]      ip6_route_add+0x1c/0x140
[ 5949.883587][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5949.883587][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5949.883587][   T73]      netlink_rcv_skb+0x130/0x360
[ 5949.883587][   T73]      netlink_unicast+0x449/0x710
[ 5949.883587][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5949.883587][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5949.883587][   T73]      ___sys_sendmsg+0xee/0x170
[ 5949.883587][   T73]      __sys_sendmsg+0xcd/0x170
[ 5949.883587][   T73]      do_syscall_64+0xc6/0x1e0
[ 5949.883587][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5949.883587][   T73] 
[ 5949.885874][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5949.885874][   T73]      dst_init+0x84/0x4a0
[ 5949.885874][   T73]      dst_alloc+0x97/0x150
[ 5949.885874][   T73]      ip6_dst_alloc+0x23/0x90
[ 5949.885874][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5949.885874][   T73]      ip6_pol_route+0x56f/0x840
[ 5949.885874][   T73]      fib6_rule_lookup+0x456/0x630
[ 5949.885874][   T73]      ip6_route_input+0x59c/0xa50
[ 5949.885874][   T73]      ipv6_rcv+0x397/0x810
[ 5949.885874][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5949.885874][   T73]      process_backlog+0x101/0x620
[ 5949.885874][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5949.885874][   T73]      net_rx_action+0x495/0xbe0
[ 5949.885874][   T73]      __do_softirq+0x1b5/0x7f6
[ 5949.885874][   T73] 
[ 5949.887942][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5949.887942][   T73]      netdev_get_by_index+0x5e/0x80
[ 5949.887942][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5949.887942][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5949.887942][   T73]      ip6_route_add+0x1c/0x140
[ 5949.887942][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5949.887942][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5949.887942][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5949.887942][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5949.887942][   T73]      netlink_rcv_skb+0x130/0x360
[ 5949.887942][   T73]      netlink_unicast+0x449/0x710
[ 5949.887942][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5949.887942][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5949.887942][   T73]      ___sys_sendmsg+0xee/0x170
[ 5949.887942][   T73]      __sys_sendmsg+0xcd/0x170
[ 5949.887942][   T73]      do_syscall_64+0xc6/0x1e0
[ 5949.887942][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5949.887942][   T73] 
[ 5949.890390][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5949.890390][   T73]      netdev_get_by_index+0x5e/0x80
[ 5949.890390][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5949.890390][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5949.890390][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5949.890390][   T73]      ipv6_add_addr+0x411/0x2000
[ 5949.890390][   T73]      inet6_addr_add+0x30e/0xa40
[ 5949.890390][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5949.890390][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5949.890390][   T73]      netlink_rcv_skb+0x130/0x360
[ 5949.890390][   T73]      netlink_unicast+0x449/0x710
[ 5949.890390][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5949.890390][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5949.890390][   T73]      ___sys_sendmsg+0xee/0x170
[ 5949.890390][   T73]      __sys_sendmsg+0xcd/0x170
[ 5949.890390][   T73]      do_syscall_64+0xc6/0x1e0
[ 5949.890390][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5949.890390][   T73] 
[ 5949.892800][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5949.892800][   T73]      netdev_get_by_index+0x5e/0x80
[ 5949.892800][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5949.892800][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5949.892800][   T73]      ip6_route_add+0x1c/0x140
[ 5949.892800][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5949.892800][   T73]      addrconf_add_dev+0xe2/0x170
[ 5949.892800][   T73]      inet6_addr_add+0x12f/0xa40
[ 5949.892800][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5949.892800][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5949.892800][   T73]      netlink_rcv_skb+0x130/0x360
[ 5949.892800][   T73]      netlink_unicast+0x449/0x710
[ 5949.892800][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5949.892800][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5949.892800][   T73]      ___sys_sendmsg+0xee/0x170
[ 5949.892800][   T73]      __sys_sendmsg+0xcd/0x170
[ 5949.892800][   T73]      do_syscall_64+0xc6/0x1e0
[ 5949.892800][   T73] 
[ 5949.895216][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5949.895216][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5949.895216][   T73]      ipv6_find_idev+0x102/0x170
[ 5949.895216][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5949.895216][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5949.895216][   T73]      netlink_rcv_skb+0x130/0x360
[ 5949.895216][   T73]      netlink_unicast+0x449/0x710
[ 5949.895216][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5949.895216][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5949.895216][   T73]      ___sys_sendmsg+0xee/0x170
[ 5949.895216][   T73]      __sys_sendmsg+0xcd/0x170
[ 5949.895216][   T73]      do_syscall_64+0xc6/0x1e0
[ 5949.895216][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5949.895216][   T73] 
[ 5949.897173][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5949.897173][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5949.897173][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5949.897173][   T73]      ipv6_find_idev+0x102/0x170
[ 5949.897173][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5949.897173][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5949.897173][   T73]      netlink_rcv_skb+0x130/0x360
[ 5949.897173][   T73]      netlink_unicast+0x449/0x710
[ 5949.897173][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5949.897173][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5949.897173][   T73]      ___sys_sendmsg+0xee/0x170
[ 5949.897173][   T73]      __sys_sendmsg+0xcd/0x170
[ 5949.897173][   T73]      do_syscall_64+0xc6/0x1e0
[ 5949.897173][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5949.897173][   T73] 
[ 5949.899221][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5949.899608][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5949.899608][   T73]      netdev_get_by_index+0x5e/0x80
[ 5949.899608][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5949.899608][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5949.899608][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5949.899608][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5949.899608][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5949.899608][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5949.899608][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5949.899608][   T73]      addrconf_dad_begin+0x310/0x670
[ 5949.899608][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5949.899608][   T73]      process_one_work+0x84d/0x18a0
[ 5949.899608][   T73]      worker_thread+0x587/0xd30
[ 5949.899608][   T73]      kthread+0x28a/0x350
[ 5949.899608][   T73]      ret_from_fork+0x31/0x70
[ 5949.899608][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5949.899608][   T73] 
[ 5949.901854][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5949.901854][   T73]      netdev_get_by_index+0x5e/0x80
[ 5949.901854][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5949.901854][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5949.901854][   T73]      ip6_route_add+0x1c/0x140
[ 5949.901854][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5949.901854][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5949.901854][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5949.901854][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5949.901854][   T73]      netlink_rcv_skb+0x130/0x360
[ 5949.901854][   T73]      netlink_unicast+0x449/0x710
[ 5949.901854][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5949.901854][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5949.901854][   T73]      ___sys_sendmsg+0xee/0x170
[ 5949.901854][   T73]      __sys_sendmsg+0xcd/0x170
[ 5949.901854][   T73]      do_syscall_64+0xc6/0x1e0
[ 5949.901854][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5949.901854][   T73] 
[ 5949.904343][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5949.904343][   T73]      netdev_get_by_index+0x5e/0x80
[ 5949.904343][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5949.904343][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5949.904343][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5949.904343][   T73]      ipv6_add_addr+0x411/0x2000
[ 5949.904343][   T73]      inet6_addr_add+0x30e/0xa40
[ 5949.904343][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5949.904343][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5949.904343][   T73]      netlink_rcv_skb+0x130/0x360
[ 5949.904343][   T73]      netlink_unicast+0x449/0x710
[ 5949.904343][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5949.904343][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5949.904343][   T73]      ___sys_sendmsg+0xee/0x170
[ 5949.904343][   T73]      __sys_sendmsg+0xcd/0x170
[ 5949.904343][   T73]      do_syscall_64+0xc6/0x1e0
[ 5949.904343][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5949.904343][   T73] 
[ 5949.906809][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5949.906809][   T73]      netdev_get_by_index+0x5e/0x80
[ 5949.906809][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5949.906809][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5949.906809][   T73]      ip6_route_add+0x1c/0x140
[ 5949.906809][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5949.906809][   T73]      addrconf_add_dev+0xe2/0x170
[ 5949.906809][   T73]      inet6_addr_add+0x12f/0xa40
[ 5949.906809][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5949.906809][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5949.906809][   T73]      netlink_rcv_skb+0x130/0x360
[ 5949.906809][   T73]      netlink_unicast+0x449/0x710
[ 5949.906809][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5949.906809][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5949.906809][   T73]      ___sys_sendmsg+0xee/0x170
[ 5949.906809][   T73]      __sys_sendmsg+0xcd/0x170
[ 5949.906809][   T73]      do_syscall_64+0xc6/0x1e0
[ 5949.906809][   T73] 
[ 5949.909325][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5949.909325][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5949.909325][   T73]      ipv6_find_idev+0x102/0x170
[ 5949.909325][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5949.909325][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5949.909325][   T73]      netlink_rcv_skb+0x130/0x360
[ 5949.909325][   T73]      netlink_unicast+0x449/0x710
[ 5949.909325][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5949.909325][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5949.909325][   T73]      ___sys_sendmsg+0xee/0x170
[ 5949.909325][   T73]      __sys_sendmsg+0xcd/0x170
[ 5949.909325][   T73]      do_syscall_64+0xc6/0x1e0
[ 5949.909325][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5949.909325][   T73] 
[ 5949.911229][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5949.911229][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5949.911229][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5949.911229][   T73]      ipv6_find_idev+0x102/0x170
[ 5949.911229][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5949.911229][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5949.911229][   T73]      netlink_rcv_skb+0x130/0x360
[ 5949.911229][   T73]      netlink_unicast+0x449/0x710
[ 5949.911229][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5949.911229][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5949.911229][   T73]      ___sys_sendmsg+0xee/0x170
[ 5949.911229][   T73]      __sys_sendmsg+0xcd/0x170
[ 5949.911229][   T73]      do_syscall_64+0xc6/0x1e0
[ 5949.911229][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5949.911229][   T73] 
[ 5960.167852][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5960.168371][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5960.168371][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5960.168371][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5960.168371][   T73]      fib6_nh_init+0xa22/0x1580
[ 5960.168371][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5960.168371][   T73]      ip6_route_add+0x1c/0x140
[ 5960.168371][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5960.168371][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5960.168371][   T73]      netlink_rcv_skb+0x130/0x360
[ 5960.168371][   T73]      netlink_unicast+0x449/0x710
[ 5960.168371][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5960.168371][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5960.168371][   T73]      ___sys_sendmsg+0xee/0x170
[ 5960.168371][   T73]      __sys_sendmsg+0xcd/0x170
[ 5960.168371][   T73]      do_syscall_64+0xc6/0x1e0
[ 5960.168371][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5960.168371][   T73] 
[ 5960.170511][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5960.170511][   T73]      dst_init+0x84/0x4a0
[ 5960.170511][   T73]      dst_alloc+0x97/0x150
[ 5960.170511][   T73]      ip6_dst_alloc+0x23/0x90
[ 5960.170511][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5960.170511][   T73]      ip6_pol_route+0x56f/0x840
[ 5960.170511][   T73]      fib6_rule_lookup+0x456/0x630
[ 5960.170511][   T73]      ip6_route_input+0x59c/0xa50
[ 5960.170511][   T73]      ipv6_rcv+0x397/0x810
[ 5960.170511][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5960.170511][   T73]      process_backlog+0x101/0x620
[ 5960.170511][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5960.170511][   T73]      net_rx_action+0x495/0xbe0
[ 5960.170511][   T73]      __do_softirq+0x1b5/0x7f6
[ 5960.170511][   T73] 
[ 5960.172344][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5960.172344][   T73]      netdev_get_by_index+0x5e/0x80
[ 5960.172344][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5960.172344][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5960.172344][   T73]      ip6_route_add+0x1c/0x140
[ 5960.172344][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5960.172344][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5960.172344][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5960.172344][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5960.172344][   T73]      netlink_rcv_skb+0x130/0x360
[ 5960.172344][   T73]      netlink_unicast+0x449/0x710
[ 5960.172344][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5960.172344][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5960.172344][   T73]      ___sys_sendmsg+0xee/0x170
[ 5960.172344][   T73]      __sys_sendmsg+0xcd/0x170
[ 5960.172344][   T73]      do_syscall_64+0xc6/0x1e0
[ 5960.172344][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5960.172344][   T73] 
[ 5960.174579][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5960.174579][   T73]      netdev_get_by_index+0x5e/0x80
[ 5960.174579][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5960.174579][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5960.174579][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5960.174579][   T73]      ipv6_add_addr+0x411/0x2000
[ 5960.174579][   T73]      inet6_addr_add+0x30e/0xa40
[ 5960.174579][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5960.174579][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5960.174579][   T73]      netlink_rcv_skb+0x130/0x360
[ 5960.174579][   T73]      netlink_unicast+0x449/0x710
[ 5960.174579][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5960.174579][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5960.174579][   T73]      ___sys_sendmsg+0xee/0x170
[ 5960.174579][   T73]      __sys_sendmsg+0xcd/0x170
[ 5960.174579][   T73]      do_syscall_64+0xc6/0x1e0
[ 5960.174579][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5960.174579][   T73] 
[ 5960.176789][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5960.176789][   T73]      netdev_get_by_index+0x5e/0x80
[ 5960.176789][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5960.176789][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5960.176789][   T73]      ip6_route_add+0x1c/0x140
[ 5960.176789][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5960.176789][   T73]      addrconf_add_dev+0xe2/0x170
[ 5960.176789][   T73]      inet6_addr_add+0x12f/0xa40
[ 5960.176789][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5960.176789][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5960.176789][   T73]      netlink_rcv_skb+0x130/0x360
[ 5960.176789][   T73]      netlink_unicast+0x449/0x710
[ 5960.176789][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5960.176789][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5960.176789][   T73]      ___sys_sendmsg+0xee/0x170
[ 5960.176789][   T73]      __sys_sendmsg+0xcd/0x170
[ 5960.176789][   T73]      do_syscall_64+0xc6/0x1e0
[ 5960.176789][   T73] 
[ 5960.178950][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5960.178950][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5960.178950][   T73]      ipv6_find_idev+0x102/0x170
[ 5960.178950][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5960.178950][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5960.178950][   T73]      netlink_rcv_skb+0x130/0x360
[ 5960.178950][   T73]      netlink_unicast+0x449/0x710
[ 5960.178950][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5960.178950][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5960.178950][   T73]      ___sys_sendmsg+0xee/0x170
[ 5960.178950][   T73]      __sys_sendmsg+0xcd/0x170
[ 5960.178950][   T73]      do_syscall_64+0xc6/0x1e0
[ 5960.178950][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5960.178950][   T73] 
[ 5960.180643][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5960.180643][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5960.180643][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5960.180643][   T73]      ipv6_find_idev+0x102/0x170
[ 5960.180643][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5960.180643][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5960.180643][   T73]      netlink_rcv_skb+0x130/0x360
[ 5960.180643][   T73]      netlink_unicast+0x449/0x710
[ 5960.180643][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5960.180643][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5960.180643][   T73]      ___sys_sendmsg+0xee/0x170
[ 5960.180643][   T73]      __sys_sendmsg+0xcd/0x170
[ 5960.180643][   T73]      do_syscall_64+0xc6/0x1e0
[ 5960.180643][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5960.180643][   T73] 
[ 5960.182517][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5960.182835][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5960.182835][   T73]      netdev_get_by_index+0x5e/0x80
[ 5960.182835][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5960.182835][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5960.182835][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5960.182835][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5960.182835][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5960.182835][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5960.182835][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5960.182835][   T73]      addrconf_dad_begin+0x310/0x670
[ 5960.182835][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5960.182835][   T73]      process_one_work+0x84d/0x18a0
[ 5960.182835][   T73]      worker_thread+0x587/0xd30
[ 5960.182835][   T73]      kthread+0x28a/0x350
[ 5960.182835][   T73]      ret_from_fork+0x31/0x70
[ 5960.182835][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5960.182835][   T73] 
[ 5960.184966][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5960.184966][   T73]      netdev_get_by_index+0x5e/0x80
[ 5960.184966][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5960.184966][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5960.184966][   T73]      ip6_route_add+0x1c/0x140
[ 5960.184966][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5960.184966][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5960.184966][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5960.184966][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5960.184966][   T73]      netlink_rcv_skb+0x130/0x360
[ 5960.184966][   T73]      netlink_unicast+0x449/0x710
[ 5960.184966][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5960.184966][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5960.184966][   T73]      ___sys_sendmsg+0xee/0x170
[ 5960.184966][   T73]      __sys_sendmsg+0xcd/0x170
[ 5960.184966][   T73]      do_syscall_64+0xc6/0x1e0
[ 5960.184966][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5960.184966][   T73] 
[ 5960.187735][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5960.187735][   T73]      netdev_get_by_index+0x5e/0x80
[ 5960.187735][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5960.187735][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5960.187735][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5960.187735][   T73]      ipv6_add_addr+0x411/0x2000
[ 5960.187735][   T73]      inet6_addr_add+0x30e/0xa40
[ 5960.187735][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5960.187735][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5960.187735][   T73]      netlink_rcv_skb+0x130/0x360
[ 5960.187735][   T73]      netlink_unicast+0x449/0x710
[ 5960.187735][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5960.187735][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5960.187735][   T73]      ___sys_sendmsg+0xee/0x170
[ 5960.187735][   T73]      __sys_sendmsg+0xcd/0x170
[ 5960.187735][   T73]      do_syscall_64+0xc6/0x1e0
[ 5960.187735][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5960.187735][   T73] 
[ 5960.194352][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5960.194352][   T73]      netdev_get_by_index+0x5e/0x80
[ 5960.194352][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5960.194352][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5960.194352][   T73]      ip6_route_add+0x1c/0x140
[ 5960.194352][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5960.194352][   T73]      addrconf_add_dev+0xe2/0x170
[ 5960.194352][   T73]      inet6_addr_add+0x12f/0xa40
[ 5960.194352][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5960.194352][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5960.194352][   T73]      netlink_rcv_skb+0x130/0x360
[ 5960.194352][   T73]      netlink_unicast+0x449/0x710
[ 5960.194352][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5960.194352][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5960.194352][   T73]      ___sys_sendmsg+0xee/0x170
[ 5960.194352][   T73]      __sys_sendmsg+0xcd/0x170
[ 5960.194352][   T73]      do_syscall_64+0xc6/0x1e0
[ 5960.194352][   T73] 
[ 5960.196553][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5960.196553][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5960.196553][   T73]      ipv6_find_idev+0x102/0x170
[ 5960.196553][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5960.196553][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5960.196553][   T73]      netlink_rcv_skb+0x130/0x360
[ 5960.196553][   T73]      netlink_unicast+0x449/0x710
[ 5960.196553][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5960.196553][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5960.196553][   T73]      ___sys_sendmsg+0xee/0x170
[ 5960.196553][   T73]      __sys_sendmsg+0xcd/0x170
[ 5960.196553][   T73]      do_syscall_64+0xc6/0x1e0
[ 5960.196553][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5960.196553][   T73] 
[ 5960.198296][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5960.198296][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5960.198296][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5960.198296][   T73]      ipv6_find_idev+0x102/0x170
[ 5960.198296][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5960.198296][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5960.198296][   T73]      netlink_rcv_skb+0x130/0x360
[ 5960.198296][   T73]      netlink_unicast+0x449/0x710
[ 5960.198296][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5960.198296][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5960.198296][   T73]      ___sys_sendmsg+0xee/0x170
[ 5960.198296][   T73]      __sys_sendmsg+0xcd/0x170
[ 5960.198296][   T73]      do_syscall_64+0xc6/0x1e0
[ 5960.198296][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5960.198296][   T73] 
[ 5960.200212][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5960.200513][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5960.200513][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5960.200513][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5960.200513][   T73]      fib6_nh_init+0xa22/0x1580
[ 5960.200513][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5960.200513][   T73]      ip6_route_add+0x1c/0x140
[ 5960.200513][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5960.200513][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5960.200513][   T73]      netlink_rcv_skb+0x130/0x360
[ 5960.200513][   T73]      netlink_unicast+0x449/0x710
[ 5960.200513][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5960.200513][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5960.200513][   T73]      ___sys_sendmsg+0xee/0x170
[ 5960.200513][   T73]      __sys_sendmsg+0xcd/0x170
[ 5960.200513][   T73]      do_syscall_64+0xc6/0x1e0
[ 5960.200513][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5960.200513][   T73] 
[ 5960.202794][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5960.202794][   T73]      dst_init+0x84/0x4a0
[ 5960.202794][   T73]      dst_alloc+0x97/0x150
[ 5960.202794][   T73]      ip6_dst_alloc+0x23/0x90
[ 5960.202794][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5960.202794][   T73]      ip6_pol_route+0x56f/0x840
[ 5960.202794][   T73]      fib6_rule_lookup+0x456/0x630
[ 5960.202794][   T73]      ip6_route_input+0x59c/0xa50
[ 5960.202794][   T73]      ipv6_rcv+0x397/0x810
[ 5960.202794][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5960.202794][   T73]      process_backlog+0x101/0x620
[ 5960.202794][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5960.202794][   T73]      net_rx_action+0x495/0xbe0
[ 5960.202794][   T73]      __do_softirq+0x1b5/0x7f6
[ 5960.202794][   T73] 
[ 5960.204809][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5960.204809][   T73]      netdev_get_by_index+0x5e/0x80
[ 5960.204809][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5960.204809][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5960.204809][   T73]      ip6_route_add+0x1c/0x140
[ 5960.204809][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5960.204809][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5960.204809][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5960.204809][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5960.204809][   T73]      netlink_rcv_skb+0x130/0x360
[ 5960.204809][   T73]      netlink_unicast+0x449/0x710
[ 5960.204809][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5960.204809][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5960.204809][   T73]      ___sys_sendmsg+0xee/0x170
[ 5960.204809][   T73]      __sys_sendmsg+0xcd/0x170
[ 5960.204809][   T73]      do_syscall_64+0xc6/0x1e0
[ 5960.204809][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5960.204809][   T73] 
[ 5960.207291][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5960.207291][   T73]      netdev_get_by_index+0x5e/0x80
[ 5960.207291][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5960.207291][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5960.207291][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5960.207291][   T73]      ipv6_add_addr+0x411/0x2000
[ 5960.207291][   T73]      inet6_addr_add+0x30e/0xa40
[ 5960.207291][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5960.207291][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5960.207291][   T73]      netlink_rcv_skb+0x130/0x360
[ 5960.207291][   T73]      netlink_unicast+0x449/0x710
[ 5960.207291][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5960.207291][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5960.207291][   T73]      ___sys_sendmsg+0xee/0x170
[ 5960.207291][   T73]      __sys_sendmsg+0xcd/0x170
[ 5960.207291][   T73]      do_syscall_64+0xc6/0x1e0
[ 5960.207291][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5960.207291][   T73] 
[ 5960.209764][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5960.209764][   T73]      netdev_get_by_index+0x5e/0x80
[ 5960.209764][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5960.209764][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5960.209764][   T73]      ip6_route_add+0x1c/0x140
[ 5960.209764][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5960.209764][   T73]      addrconf_add_dev+0xe2/0x170
[ 5960.209764][   T73]      inet6_addr_add+0x12f/0xa40
[ 5960.209764][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5960.209764][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5960.209764][   T73]      netlink_rcv_skb+0x130/0x360
[ 5960.209764][   T73]      netlink_unicast+0x449/0x710
[ 5960.209764][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5960.209764][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5960.209764][   T73]      ___sys_sendmsg+0xee/0x170
[ 5960.209764][   T73]      __sys_sendmsg+0xcd/0x170
[ 5960.209764][   T73]      do_syscall_64+0xc6/0x1e0
[ 5960.209764][   T73] 
[ 5960.212194][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5960.212194][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5960.212194][   T73]      ipv6_find_idev+0x102/0x170
[ 5960.212194][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5960.212194][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5960.212194][   T73]      netlink_rcv_skb+0x130/0x360
[ 5960.212194][   T73]      netlink_unicast+0x449/0x710
[ 5960.212194][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5960.212194][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5960.212194][   T73]      ___sys_sendmsg+0xee/0x170
[ 5960.212194][   T73]      __sys_sendmsg+0xcd/0x170
[ 5960.212194][   T73]      do_syscall_64+0xc6/0x1e0
[ 5960.212194][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5960.212194][   T73] 
[ 5960.214102][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5960.214102][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5960.214102][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5960.214102][   T73]      ipv6_find_idev+0x102/0x170
[ 5960.214102][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5960.214102][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5960.214102][   T73]      netlink_rcv_skb+0x130/0x360
[ 5960.214102][   T73]      netlink_unicast+0x449/0x710
[ 5960.214102][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5960.214102][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5960.214102][   T73]      ___sys_sendmsg+0xee/0x170
[ 5960.214102][   T73]      __sys_sendmsg+0xcd/0x170
[ 5960.214102][   T73]      do_syscall_64+0xc6/0x1e0
[ 5960.214102][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5960.214102][   T73] 
[ 5960.216162][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5960.216538][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5960.216538][   T73]      netdev_get_by_index+0x5e/0x80
[ 5960.216538][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5960.216538][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5960.216538][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5960.216538][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5960.216538][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5960.216538][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5960.216538][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5960.216538][   T73]      addrconf_dad_begin+0x310/0x670
[ 5960.216538][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5960.216538][   T73]      process_one_work+0x84d/0x18a0
[ 5960.216538][   T73]      worker_thread+0x587/0xd30
[ 5960.216538][   T73]      kthread+0x28a/0x350
[ 5960.216538][   T73]      ret_from_fork+0x31/0x70
[ 5960.216538][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5960.216538][   T73] 
[ 5960.218789][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5960.218789][   T73]      netdev_get_by_index+0x5e/0x80
[ 5960.218789][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5960.218789][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5960.218789][   T73]      ip6_route_add+0x1c/0x140
[ 5960.218789][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5960.218789][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5960.218789][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5960.218789][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5960.218789][   T73]      netlink_rcv_skb+0x130/0x360
[ 5960.218789][   T73]      netlink_unicast+0x449/0x710
[ 5960.218789][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5960.218789][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5960.218789][   T73]      ___sys_sendmsg+0xee/0x170
[ 5960.218789][   T73]      __sys_sendmsg+0xcd/0x170
[ 5960.218789][   T73]      do_syscall_64+0xc6/0x1e0
[ 5960.218789][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5960.218789][   T73] 
[ 5960.221316][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5960.221316][   T73]      netdev_get_by_index+0x5e/0x80
[ 5960.221316][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5960.221316][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5960.221316][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5960.221316][   T73]      ipv6_add_addr+0x411/0x2000
[ 5960.221316][   T73]      inet6_addr_add+0x30e/0xa40
[ 5960.221316][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5960.221316][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5960.221316][   T73]      netlink_rcv_skb+0x130/0x360
[ 5960.221316][   T73]      netlink_unicast+0x449/0x710
[ 5960.221316][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5960.221316][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5960.221316][   T73]      ___sys_sendmsg+0xee/0x170
[ 5960.221316][   T73]      __sys_sendmsg+0xcd/0x170
[ 5960.221316][   T73]      do_syscall_64+0xc6/0x1e0
[ 5960.221316][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5960.221316][   T73] 
[ 5960.223802][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5960.223802][   T73]      netdev_get_by_index+0x5e/0x80
[ 5960.223802][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5960.223802][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5960.223802][   T73]      ip6_route_add+0x1c/0x140
[ 5960.223802][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5960.223802][   T73]      addrconf_add_dev+0xe2/0x170
[ 5960.223802][   T73]      inet6_addr_add+0x12f/0xa40
[ 5960.223802][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5960.223802][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5960.223802][   T73]      netlink_rcv_skb+0x130/0x360
[ 5960.223802][   T73]      netlink_unicast+0x449/0x710
[ 5960.223802][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5960.223802][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5960.223802][   T73]      ___sys_sendmsg+0xee/0x170
[ 5960.223802][   T73]      __sys_sendmsg+0xcd/0x170
[ 5960.223802][   T73]      do_syscall_64+0xc6/0x1e0
[ 5960.223802][   T73] 
[ 5960.226333][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5960.226333][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5960.226333][   T73]      ipv6_find_idev+0x102/0x170
[ 5960.226333][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5960.226333][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5960.226333][   T73]      netlink_rcv_skb+0x130/0x360
[ 5960.226333][   T73]      netlink_unicast+0x449/0x710
[ 5960.226333][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5960.226333][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5960.226333][   T73]      ___sys_sendmsg+0xee/0x170
[ 5960.226333][   T73]      __sys_sendmsg+0xcd/0x170
[ 5960.226333][   T73]      do_syscall_64+0xc6/0x1e0
[ 5960.226333][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5960.226333][   T73] 
[ 5960.228258][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5960.228258][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5960.228258][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5960.228258][   T73]      ipv6_find_idev+0x102/0x170
[ 5960.228258][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5960.228258][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5960.228258][   T73]      netlink_rcv_skb+0x130/0x360
[ 5960.228258][   T73]      netlink_unicast+0x449/0x710
[ 5960.228258][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5960.228258][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5960.228258][   T73]      ___sys_sendmsg+0xee/0x170
[ 5960.228258][   T73]      __sys_sendmsg+0xcd/0x170
[ 5960.228258][   T73]      do_syscall_64+0xc6/0x1e0
[ 5960.228258][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5960.228258][   T73] 
[ 5970.311762][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5970.312283][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5970.312283][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5970.312283][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5970.312283][   T73]      fib6_nh_init+0xa22/0x1580
[ 5970.312283][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5970.312283][   T73]      ip6_route_add+0x1c/0x140
[ 5970.312283][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5970.312283][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5970.312283][   T73]      netlink_rcv_skb+0x130/0x360
[ 5970.312283][   T73]      netlink_unicast+0x449/0x710
[ 5970.312283][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5970.312283][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5970.312283][   T73]      ___sys_sendmsg+0xee/0x170
[ 5970.312283][   T73]      __sys_sendmsg+0xcd/0x170
[ 5970.312283][   T73]      do_syscall_64+0xc6/0x1e0
[ 5970.312283][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5970.312283][   T73] 
[ 5970.314402][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5970.314402][   T73]      dst_init+0x84/0x4a0
[ 5970.314402][   T73]      dst_alloc+0x97/0x150
[ 5970.314402][   T73]      ip6_dst_alloc+0x23/0x90
[ 5970.314402][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5970.314402][   T73]      ip6_pol_route+0x56f/0x840
[ 5970.314402][   T73]      fib6_rule_lookup+0x456/0x630
[ 5970.314402][   T73]      ip6_route_input+0x59c/0xa50
[ 5970.314402][   T73]      ipv6_rcv+0x397/0x810
[ 5970.314402][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5970.314402][   T73]      process_backlog+0x101/0x620
[ 5970.314402][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5970.314402][   T73]      net_rx_action+0x495/0xbe0
[ 5970.314402][   T73]      __do_softirq+0x1b5/0x7f6
[ 5970.314402][   T73] 
[ 5970.316231][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5970.316231][   T73]      netdev_get_by_index+0x5e/0x80
[ 5970.316231][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5970.316231][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5970.316231][   T73]      ip6_route_add+0x1c/0x140
[ 5970.316231][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5970.316231][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5970.316231][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5970.316231][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5970.316231][   T73]      netlink_rcv_skb+0x130/0x360
[ 5970.316231][   T73]      netlink_unicast+0x449/0x710
[ 5970.316231][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5970.316231][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5970.316231][   T73]      ___sys_sendmsg+0xee/0x170
[ 5970.316231][   T73]      __sys_sendmsg+0xcd/0x170
[ 5970.316231][   T73]      do_syscall_64+0xc6/0x1e0
[ 5970.316231][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5970.316231][   T73] 
[ 5970.318494][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5970.318494][   T73]      netdev_get_by_index+0x5e/0x80
[ 5970.318494][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5970.318494][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5970.318494][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5970.318494][   T73]      ipv6_add_addr+0x411/0x2000
[ 5970.318494][   T73]      inet6_addr_add+0x30e/0xa40
[ 5970.318494][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5970.318494][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5970.318494][   T73]      netlink_rcv_skb+0x130/0x360
[ 5970.318494][   T73]      netlink_unicast+0x449/0x710
[ 5970.318494][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5970.318494][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5970.318494][   T73]      ___sys_sendmsg+0xee/0x170
[ 5970.318494][   T73]      __sys_sendmsg+0xcd/0x170
[ 5970.318494][   T73]      do_syscall_64+0xc6/0x1e0
[ 5970.318494][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5970.318494][   T73] 
[ 5970.320728][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5970.320728][   T73]      netdev_get_by_index+0x5e/0x80
[ 5970.320728][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5970.320728][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5970.320728][   T73]      ip6_route_add+0x1c/0x140
[ 5970.320728][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5970.320728][   T73]      addrconf_add_dev+0xe2/0x170
[ 5970.320728][   T73]      inet6_addr_add+0x12f/0xa40
[ 5970.320728][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5970.320728][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5970.320728][   T73]      netlink_rcv_skb+0x130/0x360
[ 5970.320728][   T73]      netlink_unicast+0x449/0x710
[ 5970.320728][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5970.320728][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5970.320728][   T73]      ___sys_sendmsg+0xee/0x170
[ 5970.320728][   T73]      __sys_sendmsg+0xcd/0x170
[ 5970.320728][   T73]      do_syscall_64+0xc6/0x1e0
[ 5970.320728][   T73] 
[ 5970.322923][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5970.322923][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5970.322923][   T73]      ipv6_find_idev+0x102/0x170
[ 5970.322923][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5970.322923][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5970.322923][   T73]      netlink_rcv_skb+0x130/0x360
[ 5970.322923][   T73]      netlink_unicast+0x449/0x710
[ 5970.322923][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5970.322923][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5970.322923][   T73]      ___sys_sendmsg+0xee/0x170
[ 5970.322923][   T73]      __sys_sendmsg+0xcd/0x170
[ 5970.322923][   T73]      do_syscall_64+0xc6/0x1e0
[ 5970.322923][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5970.322923][   T73] 
[ 5970.324650][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5970.324650][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5970.324650][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5970.324650][   T73]      ipv6_find_idev+0x102/0x170
[ 5970.324650][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5970.324650][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5970.324650][   T73]      netlink_rcv_skb+0x130/0x360
[ 5970.324650][   T73]      netlink_unicast+0x449/0x710
[ 5970.324650][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5970.324650][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5970.324650][   T73]      ___sys_sendmsg+0xee/0x170
[ 5970.324650][   T73]      __sys_sendmsg+0xcd/0x170
[ 5970.324650][   T73]      do_syscall_64+0xc6/0x1e0
[ 5970.324650][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5970.324650][   T73] 
[ 5970.326522][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5970.326842][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5970.326842][   T73]      netdev_get_by_index+0x5e/0x80
[ 5970.326842][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5970.326842][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5970.326842][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5970.326842][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5970.326842][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5970.326842][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5970.326842][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5970.326842][   T73]      addrconf_dad_begin+0x310/0x670
[ 5970.326842][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5970.326842][   T73]      process_one_work+0x84d/0x18a0
[ 5970.326842][   T73]      worker_thread+0x587/0xd30
[ 5970.326842][   T73]      kthread+0x28a/0x350
[ 5970.326842][   T73]      ret_from_fork+0x31/0x70
[ 5970.326842][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5970.326842][   T73] 
[ 5970.328992][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5970.328992][   T73]      netdev_get_by_index+0x5e/0x80
[ 5970.328992][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5970.328992][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5970.328992][   T73]      ip6_route_add+0x1c/0x140
[ 5970.328992][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5970.328992][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5970.328992][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5970.328992][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5970.328992][   T73]      netlink_rcv_skb+0x130/0x360
[ 5970.328992][   T73]      netlink_unicast+0x449/0x710
[ 5970.328992][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5970.328992][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5970.328992][   T73]      ___sys_sendmsg+0xee/0x170
[ 5970.328992][   T73]      __sys_sendmsg+0xcd/0x170
[ 5970.328992][   T73]      do_syscall_64+0xc6/0x1e0
[ 5970.328992][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5970.328992][   T73] 
[ 5970.331252][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5970.331252][   T73]      netdev_get_by_index+0x5e/0x80
[ 5970.331252][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5970.331252][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5970.331252][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5970.331252][   T73]      ipv6_add_addr+0x411/0x2000
[ 5970.331252][   T73]      inet6_addr_add+0x30e/0xa40
[ 5970.331252][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5970.331252][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5970.331252][   T73]      netlink_rcv_skb+0x130/0x360
[ 5970.331252][   T73]      netlink_unicast+0x449/0x710
[ 5970.331252][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5970.331252][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5970.331252][   T73]      ___sys_sendmsg+0xee/0x170
[ 5970.331252][   T73]      __sys_sendmsg+0xcd/0x170
[ 5970.331252][   T73]      do_syscall_64+0xc6/0x1e0
[ 5970.331252][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5970.331252][   T73] 
[ 5970.333502][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5970.333502][   T73]      netdev_get_by_index+0x5e/0x80
[ 5970.333502][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5970.333502][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5970.333502][   T73]      ip6_route_add+0x1c/0x140
[ 5970.333502][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5970.333502][   T73]      addrconf_add_dev+0xe2/0x170
[ 5970.333502][   T73]      inet6_addr_add+0x12f/0xa40
[ 5970.333502][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5970.333502][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5970.333502][   T73]      netlink_rcv_skb+0x130/0x360
[ 5970.333502][   T73]      netlink_unicast+0x449/0x710
[ 5970.333502][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5970.333502][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5970.333502][   T73]      ___sys_sendmsg+0xee/0x170
[ 5970.333502][   T73]      __sys_sendmsg+0xcd/0x170
[ 5970.333502][   T73]      do_syscall_64+0xc6/0x1e0
[ 5970.333502][   T73] 
[ 5970.335710][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5970.335710][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5970.335710][   T73]      ipv6_find_idev+0x102/0x170
[ 5970.335710][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5970.335710][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5970.335710][   T73]      netlink_rcv_skb+0x130/0x360
[ 5970.335710][   T73]      netlink_unicast+0x449/0x710
[ 5970.335710][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5970.335710][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5970.335710][   T73]      ___sys_sendmsg+0xee/0x170
[ 5970.335710][   T73]      __sys_sendmsg+0xcd/0x170
[ 5970.335710][   T73]      do_syscall_64+0xc6/0x1e0
[ 5970.335710][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5970.335710][   T73] 
[ 5970.341692][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5970.341692][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5970.341692][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5970.341692][   T73]      ipv6_find_idev+0x102/0x170
[ 5970.341692][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5970.341692][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5970.341692][   T73]      netlink_rcv_skb+0x130/0x360
[ 5970.341692][   T73]      netlink_unicast+0x449/0x710
[ 5970.341692][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5970.341692][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5970.341692][   T73]      ___sys_sendmsg+0xee/0x170
[ 5970.341692][   T73]      __sys_sendmsg+0xcd/0x170
[ 5970.341692][   T73]      do_syscall_64+0xc6/0x1e0
[ 5970.341692][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5970.341692][   T73] 
[ 5970.343658][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5970.343966][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5970.343966][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5970.343966][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5970.343966][   T73]      fib6_nh_init+0xa22/0x1580
[ 5970.343966][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5970.343966][   T73]      ip6_route_add+0x1c/0x140
[ 5970.343966][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5970.343966][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5970.343966][   T73]      netlink_rcv_skb+0x130/0x360
[ 5970.343966][   T73]      netlink_unicast+0x449/0x710
[ 5970.343966][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5970.343966][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5970.343966][   T73]      ___sys_sendmsg+0xee/0x170
[ 5970.343966][   T73]      __sys_sendmsg+0xcd/0x170
[ 5970.343966][   T73]      do_syscall_64+0xc6/0x1e0
[ 5970.343966][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5970.343966][   T73] 
[ 5970.346285][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5970.346285][   T73]      dst_init+0x84/0x4a0
[ 5970.346285][   T73]      dst_alloc+0x97/0x150
[ 5970.346285][   T73]      ip6_dst_alloc+0x23/0x90
[ 5970.346285][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5970.346285][   T73]      ip6_pol_route+0x56f/0x840
[ 5970.346285][   T73]      fib6_rule_lookup+0x456/0x630
[ 5970.346285][   T73]      ip6_route_input+0x59c/0xa50
[ 5970.346285][   T73]      ipv6_rcv+0x397/0x810
[ 5970.346285][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5970.346285][   T73]      process_backlog+0x101/0x620
[ 5970.346285][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5970.346285][   T73]      net_rx_action+0x495/0xbe0
[ 5970.346285][   T73]      __do_softirq+0x1b5/0x7f6
[ 5970.346285][   T73] 
[ 5970.348364][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5970.348364][   T73]      netdev_get_by_index+0x5e/0x80
[ 5970.348364][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5970.348364][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5970.348364][   T73]      ip6_route_add+0x1c/0x140
[ 5970.348364][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5970.348364][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5970.348364][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5970.348364][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5970.348364][   T73]      netlink_rcv_skb+0x130/0x360
[ 5970.348364][   T73]      netlink_unicast+0x449/0x710
[ 5970.348364][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5970.348364][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5970.348364][   T73]      ___sys_sendmsg+0xee/0x170
[ 5970.348364][   T73]      __sys_sendmsg+0xcd/0x170
[ 5970.348364][   T73]      do_syscall_64+0xc6/0x1e0
[ 5970.348364][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5970.348364][   T73] 
[ 5970.350853][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5970.350853][   T73]      netdev_get_by_index+0x5e/0x80
[ 5970.350853][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5970.350853][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5970.350853][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5970.350853][   T73]      ipv6_add_addr+0x411/0x2000
[ 5970.350853][   T73]      inet6_addr_add+0x30e/0xa40
[ 5970.350853][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5970.350853][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5970.350853][   T73]      netlink_rcv_skb+0x130/0x360
[ 5970.350853][   T73]      netlink_unicast+0x449/0x710
[ 5970.350853][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5970.350853][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5970.350853][   T73]      ___sys_sendmsg+0xee/0x170
[ 5970.350853][   T73]      __sys_sendmsg+0xcd/0x170
[ 5970.350853][   T73]      do_syscall_64+0xc6/0x1e0
[ 5970.350853][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5970.350853][   T73] 
[ 5970.353280][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5970.353280][   T73]      netdev_get_by_index+0x5e/0x80
[ 5970.353280][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5970.353280][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5970.353280][   T73]      ip6_route_add+0x1c/0x140
[ 5970.353280][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5970.353280][   T73]      addrconf_add_dev+0xe2/0x170
[ 5970.353280][   T73]      inet6_addr_add+0x12f/0xa40
[ 5970.353280][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5970.353280][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5970.353280][   T73]      netlink_rcv_skb+0x130/0x360
[ 5970.353280][   T73]      netlink_unicast+0x449/0x710
[ 5970.353280][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5970.353280][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5970.353280][   T73]      ___sys_sendmsg+0xee/0x170
[ 5970.353280][   T73]      __sys_sendmsg+0xcd/0x170
[ 5970.353280][   T73]      do_syscall_64+0xc6/0x1e0
[ 5970.353280][   T73] 
[ 5970.355734][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5970.355734][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5970.355734][   T73]      ipv6_find_idev+0x102/0x170
[ 5970.355734][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5970.355734][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5970.355734][   T73]      netlink_rcv_skb+0x130/0x360
[ 5970.355734][   T73]      netlink_unicast+0x449/0x710
[ 5970.355734][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5970.355734][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5970.355734][   T73]      ___sys_sendmsg+0xee/0x170
[ 5970.355734][   T73]      __sys_sendmsg+0xcd/0x170
[ 5970.355734][   T73]      do_syscall_64+0xc6/0x1e0
[ 5970.355734][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5970.355734][   T73] 
[ 5970.357743][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5970.357743][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5970.357743][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5970.357743][   T73]      ipv6_find_idev+0x102/0x170
[ 5970.357743][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5970.357743][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5970.357743][   T73]      netlink_rcv_skb+0x130/0x360
[ 5970.357743][   T73]      netlink_unicast+0x449/0x710
[ 5970.357743][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5970.357743][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5970.357743][   T73]      ___sys_sendmsg+0xee/0x170
[ 5970.357743][   T73]      __sys_sendmsg+0xcd/0x170
[ 5970.357743][   T73]      do_syscall_64+0xc6/0x1e0
[ 5970.357743][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5970.357743][   T73] 
[ 5970.359805][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5970.360188][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5970.360188][   T73]      netdev_get_by_index+0x5e/0x80
[ 5970.360188][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5970.360188][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5970.360188][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5970.360188][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5970.360188][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5970.360188][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5970.360188][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5970.360188][   T73]      addrconf_dad_begin+0x310/0x670
[ 5970.360188][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5970.360188][   T73]      process_one_work+0x84d/0x18a0
[ 5970.360188][   T73]      worker_thread+0x587/0xd30
[ 5970.360188][   T73]      kthread+0x28a/0x350
[ 5970.360188][   T73]      ret_from_fork+0x31/0x70
[ 5970.360188][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5970.360188][   T73] 
[ 5970.362464][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5970.362464][   T73]      netdev_get_by_index+0x5e/0x80
[ 5970.362464][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5970.362464][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5970.362464][   T73]      ip6_route_add+0x1c/0x140
[ 5970.362464][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5970.362464][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5970.362464][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5970.362464][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5970.362464][   T73]      netlink_rcv_skb+0x130/0x360
[ 5970.362464][   T73]      netlink_unicast+0x449/0x710
[ 5970.362464][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5970.362464][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5970.362464][   T73]      ___sys_sendmsg+0xee/0x170
[ 5970.362464][   T73]      __sys_sendmsg+0xcd/0x170
[ 5970.362464][   T73]      do_syscall_64+0xc6/0x1e0
[ 5970.362464][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5970.362464][   T73] 
[ 5970.364962][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5970.364962][   T73]      netdev_get_by_index+0x5e/0x80
[ 5970.364962][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5970.364962][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5970.364962][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5970.364962][   T73]      ipv6_add_addr+0x411/0x2000
[ 5970.364962][   T73]      inet6_addr_add+0x30e/0xa40
[ 5970.364962][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5970.364962][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5970.364962][   T73]      netlink_rcv_skb+0x130/0x360
[ 5970.364962][   T73]      netlink_unicast+0x449/0x710
[ 5970.364962][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5970.364962][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5970.364962][   T73]      ___sys_sendmsg+0xee/0x170
[ 5970.364962][   T73]      __sys_sendmsg+0xcd/0x170
[ 5970.364962][   T73]      do_syscall_64+0xc6/0x1e0
[ 5970.364962][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5970.364962][   T73] 
[ 5970.367472][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5970.367472][   T73]      netdev_get_by_index+0x5e/0x80
[ 5970.367472][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5970.367472][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5970.367472][   T73]      ip6_route_add+0x1c/0x140
[ 5970.367472][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5970.367472][   T73]      addrconf_add_dev+0xe2/0x170
[ 5970.367472][   T73]      inet6_addr_add+0x12f/0xa40
[ 5970.367472][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5970.367472][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5970.367472][   T73]      netlink_rcv_skb+0x130/0x360
[ 5970.367472][   T73]      netlink_unicast+0x449/0x710
[ 5970.367472][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5970.367472][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5970.367472][   T73]      ___sys_sendmsg+0xee/0x170
[ 5970.367472][   T73]      __sys_sendmsg+0xcd/0x170
[ 5970.367472][   T73]      do_syscall_64+0xc6/0x1e0
[ 5970.367472][   T73] 
[ 5970.369951][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5970.369951][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5970.369951][   T73]      ipv6_find_idev+0x102/0x170
[ 5970.369951][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5970.369951][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5970.369951][   T73]      netlink_rcv_skb+0x130/0x360
[ 5970.369951][   T73]      netlink_unicast+0x449/0x710
[ 5970.369951][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5970.369951][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5970.369951][   T73]      ___sys_sendmsg+0xee/0x170
[ 5970.369951][   T73]      __sys_sendmsg+0xcd/0x170
[ 5970.369951][   T73]      do_syscall_64+0xc6/0x1e0
[ 5970.369951][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5970.369951][   T73] 
[ 5970.371886][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5970.371886][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5970.371886][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5970.371886][   T73]      ipv6_find_idev+0x102/0x170
[ 5970.371886][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5970.371886][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5970.371886][   T73]      netlink_rcv_skb+0x130/0x360
[ 5970.371886][   T73]      netlink_unicast+0x449/0x710
[ 5970.371886][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5970.371886][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5970.371886][   T73]      ___sys_sendmsg+0xee/0x170
[ 5970.371886][   T73]      __sys_sendmsg+0xcd/0x170
[ 5970.371886][   T73]      do_syscall_64+0xc6/0x1e0
[ 5970.371886][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5970.371886][   T73] 
[ 5980.615762][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5980.616287][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5980.616287][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5980.616287][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5980.616287][   T73]      fib6_nh_init+0xa22/0x1580
[ 5980.616287][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5980.616287][   T73]      ip6_route_add+0x1c/0x140
[ 5980.616287][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5980.616287][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5980.616287][   T73]      netlink_rcv_skb+0x130/0x360
[ 5980.616287][   T73]      netlink_unicast+0x449/0x710
[ 5980.616287][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5980.616287][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5980.616287][   T73]      ___sys_sendmsg+0xee/0x170
[ 5980.616287][   T73]      __sys_sendmsg+0xcd/0x170
[ 5980.616287][   T73]      do_syscall_64+0xc6/0x1e0
[ 5980.616287][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5980.616287][   T73] 
[ 5980.618411][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5980.618411][   T73]      dst_init+0x84/0x4a0
[ 5980.618411][   T73]      dst_alloc+0x97/0x150
[ 5980.618411][   T73]      ip6_dst_alloc+0x23/0x90
[ 5980.618411][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5980.618411][   T73]      ip6_pol_route+0x56f/0x840
[ 5980.618411][   T73]      fib6_rule_lookup+0x456/0x630
[ 5980.618411][   T73]      ip6_route_input+0x59c/0xa50
[ 5980.618411][   T73]      ipv6_rcv+0x397/0x810
[ 5980.618411][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5980.618411][   T73]      process_backlog+0x101/0x620
[ 5980.618411][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5980.618411][   T73]      net_rx_action+0x495/0xbe0
[ 5980.618411][   T73]      __do_softirq+0x1b5/0x7f6
[ 5980.618411][   T73] 
[ 5980.620237][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5980.620237][   T73]      netdev_get_by_index+0x5e/0x80
[ 5980.620237][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5980.620237][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5980.620237][   T73]      ip6_route_add+0x1c/0x140
[ 5980.620237][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5980.620237][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5980.620237][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5980.620237][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5980.620237][   T73]      netlink_rcv_skb+0x130/0x360
[ 5980.620237][   T73]      netlink_unicast+0x449/0x710
[ 5980.620237][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5980.620237][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5980.620237][   T73]      ___sys_sendmsg+0xee/0x170
[ 5980.620237][   T73]      __sys_sendmsg+0xcd/0x170
[ 5980.620237][   T73]      do_syscall_64+0xc6/0x1e0
[ 5980.620237][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5980.620237][   T73] 
[ 5980.622475][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5980.622475][   T73]      netdev_get_by_index+0x5e/0x80
[ 5980.622475][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5980.622475][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5980.622475][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5980.622475][   T73]      ipv6_add_addr+0x411/0x2000
[ 5980.622475][   T73]      inet6_addr_add+0x30e/0xa40
[ 5980.622475][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5980.622475][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5980.622475][   T73]      netlink_rcv_skb+0x130/0x360
[ 5980.622475][   T73]      netlink_unicast+0x449/0x710
[ 5980.622475][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5980.622475][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5980.622475][   T73]      ___sys_sendmsg+0xee/0x170
[ 5980.622475][   T73]      __sys_sendmsg+0xcd/0x170
[ 5980.622475][   T73]      do_syscall_64+0xc6/0x1e0
[ 5980.622475][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5980.622475][   T73] 
[ 5980.624710][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5980.624710][   T73]      netdev_get_by_index+0x5e/0x80
[ 5980.624710][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5980.624710][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5980.624710][   T73]      ip6_route_add+0x1c/0x140
[ 5980.624710][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5980.624710][   T73]      addrconf_add_dev+0xe2/0x170
[ 5980.624710][   T73]      inet6_addr_add+0x12f/0xa40
[ 5980.624710][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5980.624710][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5980.624710][   T73]      netlink_rcv_skb+0x130/0x360
[ 5980.624710][   T73]      netlink_unicast+0x449/0x710
[ 5980.624710][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5980.624710][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5980.624710][   T73]      ___sys_sendmsg+0xee/0x170
[ 5980.624710][   T73]      __sys_sendmsg+0xcd/0x170
[ 5980.624710][   T73]      do_syscall_64+0xc6/0x1e0
[ 5980.624710][   T73] 
[ 5980.626901][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5980.626901][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5980.626901][   T73]      ipv6_find_idev+0x102/0x170
[ 5980.626901][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5980.626901][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5980.626901][   T73]      netlink_rcv_skb+0x130/0x360
[ 5980.626901][   T73]      netlink_unicast+0x449/0x710
[ 5980.626901][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5980.626901][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5980.626901][   T73]      ___sys_sendmsg+0xee/0x170
[ 5980.626901][   T73]      __sys_sendmsg+0xcd/0x170
[ 5980.626901][   T73]      do_syscall_64+0xc6/0x1e0
[ 5980.626901][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5980.626901][   T73] 
[ 5980.628621][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5980.628621][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5980.628621][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5980.628621][   T73]      ipv6_find_idev+0x102/0x170
[ 5980.628621][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5980.628621][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5980.628621][   T73]      netlink_rcv_skb+0x130/0x360
[ 5980.628621][   T73]      netlink_unicast+0x449/0x710
[ 5980.628621][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5980.628621][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5980.628621][   T73]      ___sys_sendmsg+0xee/0x170
[ 5980.628621][   T73]      __sys_sendmsg+0xcd/0x170
[ 5980.628621][   T73]      do_syscall_64+0xc6/0x1e0
[ 5980.628621][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5980.628621][   T73] 
[ 5980.630515][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5980.630841][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5980.630841][   T73]      netdev_get_by_index+0x5e/0x80
[ 5980.630841][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5980.630841][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5980.630841][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5980.630841][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5980.630841][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5980.630841][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5980.630841][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5980.630841][   T73]      addrconf_dad_begin+0x310/0x670
[ 5980.630841][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5980.630841][   T73]      process_one_work+0x84d/0x18a0
[ 5980.630841][   T73]      worker_thread+0x587/0xd30
[ 5980.630841][   T73]      kthread+0x28a/0x350
[ 5980.630841][   T73]      ret_from_fork+0x31/0x70
[ 5980.630841][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5980.630841][   T73] 
[ 5980.633007][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5980.633007][   T73]      netdev_get_by_index+0x5e/0x80
[ 5980.633007][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5980.633007][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5980.633007][   T73]      ip6_route_add+0x1c/0x140
[ 5980.633007][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5980.633007][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5980.633007][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5980.633007][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5980.633007][   T73]      netlink_rcv_skb+0x130/0x360
[ 5980.633007][   T73]      netlink_unicast+0x449/0x710
[ 5980.633007][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5980.633007][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5980.633007][   T73]      ___sys_sendmsg+0xee/0x170
[ 5980.633007][   T73]      __sys_sendmsg+0xcd/0x170
[ 5980.633007][   T73]      do_syscall_64+0xc6/0x1e0
[ 5980.633007][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5980.633007][   T73] 
[ 5980.635265][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5980.635265][   T73]      netdev_get_by_index+0x5e/0x80
[ 5980.635265][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5980.635265][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5980.635265][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5980.635265][   T73]      ipv6_add_addr+0x411/0x2000
[ 5980.635265][   T73]      inet6_addr_add+0x30e/0xa40
[ 5980.635265][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5980.635265][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5980.635265][   T73]      netlink_rcv_skb+0x130/0x360
[ 5980.635265][   T73]      netlink_unicast+0x449/0x710
[ 5980.635265][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5980.635265][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5980.635265][   T73]      ___sys_sendmsg+0xee/0x170
[ 5980.635265][   T73]      __sys_sendmsg+0xcd/0x170
[ 5980.635265][   T73]      do_syscall_64+0xc6/0x1e0
[ 5980.635265][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5980.635265][   T73] 
[ 5980.637496][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5980.637496][   T73]      netdev_get_by_index+0x5e/0x80
[ 5980.637496][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5980.637496][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5980.637496][   T73]      ip6_route_add+0x1c/0x140
[ 5980.637496][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5980.637496][   T73]      addrconf_add_dev+0xe2/0x170
[ 5980.637496][   T73]      inet6_addr_add+0x12f/0xa40
[ 5980.637496][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5980.637496][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5980.637496][   T73]      netlink_rcv_skb+0x130/0x360
[ 5980.637496][   T73]      netlink_unicast+0x449/0x710
[ 5980.637496][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5980.637496][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5980.637496][   T73]      ___sys_sendmsg+0xee/0x170
[ 5980.637496][   T73]      __sys_sendmsg+0xcd/0x170
[ 5980.637496][   T73]      do_syscall_64+0xc6/0x1e0
[ 5980.637496][   T73] 
[ 5980.639684][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5980.639684][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5980.639684][   T73]      ipv6_find_idev+0x102/0x170
[ 5980.639684][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5980.639684][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5980.639684][   T73]      netlink_rcv_skb+0x130/0x360
[ 5980.639684][   T73]      netlink_unicast+0x449/0x710
[ 5980.639684][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5980.639684][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5980.639684][   T73]      ___sys_sendmsg+0xee/0x170
[ 5980.639684][   T73]      __sys_sendmsg+0xcd/0x170
[ 5980.639684][   T73]      do_syscall_64+0xc6/0x1e0
[ 5980.639684][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5980.639684][   T73] 
[ 5980.641396][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5980.641396][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5980.641396][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5980.641396][   T73]      ipv6_find_idev+0x102/0x170
[ 5980.641396][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5980.641396][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5980.641396][   T73]      netlink_rcv_skb+0x130/0x360
[ 5980.641396][   T73]      netlink_unicast+0x449/0x710
[ 5980.641396][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5980.641396][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5980.641396][   T73]      ___sys_sendmsg+0xee/0x170
[ 5980.641396][   T73]      __sys_sendmsg+0xcd/0x170
[ 5980.641396][   T73]      do_syscall_64+0xc6/0x1e0
[ 5980.641396][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5980.641396][   T73] 
[ 5980.643269][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5980.643566][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5980.643566][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5980.643566][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5980.643566][   T73]      fib6_nh_init+0xa22/0x1580
[ 5980.643566][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5980.643566][   T73]      ip6_route_add+0x1c/0x140
[ 5980.643566][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5980.643566][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5980.643566][   T73]      netlink_rcv_skb+0x130/0x360
[ 5980.643566][   T73]      netlink_unicast+0x449/0x710
[ 5980.643566][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5980.643566][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5980.643566][   T73]      ___sys_sendmsg+0xee/0x170
[ 5980.643566][   T73]      __sys_sendmsg+0xcd/0x170
[ 5980.643566][   T73]      do_syscall_64+0xc6/0x1e0
[ 5980.643566][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5980.643566][   T73] 
[ 5980.645840][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5980.645840][   T73]      dst_init+0x84/0x4a0
[ 5980.645840][   T73]      dst_alloc+0x97/0x150
[ 5980.645840][   T73]      ip6_dst_alloc+0x23/0x90
[ 5980.645840][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5980.645840][   T73]      ip6_pol_route+0x56f/0x840
[ 5980.645840][   T73]      fib6_rule_lookup+0x456/0x630
[ 5980.645840][   T73]      ip6_route_input+0x59c/0xa50
[ 5980.645840][   T73]      ipv6_rcv+0x397/0x810
[ 5980.645840][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5980.645840][   T73]      process_backlog+0x101/0x620
[ 5980.645840][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5980.645840][   T73]      net_rx_action+0x495/0xbe0
[ 5980.645840][   T73]      __do_softirq+0x1b5/0x7f6
[ 5980.645840][   T73] 
[ 5980.647856][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5980.647856][   T73]      netdev_get_by_index+0x5e/0x80
[ 5980.647856][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5980.647856][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5980.647856][   T73]      ip6_route_add+0x1c/0x140
[ 5980.647856][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5980.647856][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5980.647856][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5980.647856][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5980.647856][   T73]      netlink_rcv_skb+0x130/0x360
[ 5980.647856][   T73]      netlink_unicast+0x449/0x710
[ 5980.647856][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5980.647856][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5980.647856][   T73]      ___sys_sendmsg+0xee/0x170
[ 5980.647856][   T73]      __sys_sendmsg+0xcd/0x170
[ 5980.647856][   T73]      do_syscall_64+0xc6/0x1e0
[ 5980.647856][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5980.647856][   T73] 
[ 5980.650352][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5980.650352][   T73]      netdev_get_by_index+0x5e/0x80
[ 5980.650352][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5980.650352][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5980.650352][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5980.650352][   T73]      ipv6_add_addr+0x411/0x2000
[ 5980.650352][   T73]      inet6_addr_add+0x30e/0xa40
[ 5980.650352][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5980.650352][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5980.650352][   T73]      netlink_rcv_skb+0x130/0x360
[ 5980.650352][   T73]      netlink_unicast+0x449/0x710
[ 5980.650352][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5980.650352][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5980.650352][   T73]      ___sys_sendmsg+0xee/0x170
[ 5980.650352][   T73]      __sys_sendmsg+0xcd/0x170
[ 5980.650352][   T73]      do_syscall_64+0xc6/0x1e0
[ 5980.650352][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5980.650352][   T73] 
[ 5980.652832][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5980.652832][   T73]      netdev_get_by_index+0x5e/0x80
[ 5980.652832][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5980.652832][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5980.652832][   T73]      ip6_route_add+0x1c/0x140
[ 5980.652832][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5980.652832][   T73]      addrconf_add_dev+0xe2/0x170
[ 5980.652832][   T73]      inet6_addr_add+0x12f/0xa40
[ 5980.652832][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5980.652832][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5980.652832][   T73]      netlink_rcv_skb+0x130/0x360
[ 5980.652832][   T73]      netlink_unicast+0x449/0x710
[ 5980.652832][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5980.652832][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5980.652832][   T73]      ___sys_sendmsg+0xee/0x170
[ 5980.652832][   T73]      __sys_sendmsg+0xcd/0x170
[ 5980.652832][   T73]      do_syscall_64+0xc6/0x1e0
[ 5980.652832][   T73] 
[ 5980.655312][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5980.655312][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5980.655312][   T73]      ipv6_find_idev+0x102/0x170
[ 5980.655312][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5980.655312][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5980.655312][   T73]      netlink_rcv_skb+0x130/0x360
[ 5980.655312][   T73]      netlink_unicast+0x449/0x710
[ 5980.655312][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5980.655312][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5980.655312][   T73]      ___sys_sendmsg+0xee/0x170
[ 5980.655312][   T73]      __sys_sendmsg+0xcd/0x170
[ 5980.655312][   T73]      do_syscall_64+0xc6/0x1e0
[ 5980.655312][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5980.655312][   T73] 
[ 5980.657245][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5980.657245][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5980.657245][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5980.657245][   T73]      ipv6_find_idev+0x102/0x170
[ 5980.657245][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5980.657245][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5980.657245][   T73]      netlink_rcv_skb+0x130/0x360
[ 5980.657245][   T73]      netlink_unicast+0x449/0x710
[ 5980.657245][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5980.657245][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5980.657245][   T73]      ___sys_sendmsg+0xee/0x170
[ 5980.657245][   T73]      __sys_sendmsg+0xcd/0x170
[ 5980.657245][   T73]      do_syscall_64+0xc6/0x1e0
[ 5980.657245][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5980.657245][   T73] 
[ 5980.659316][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5980.659694][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5980.659694][   T73]      netdev_get_by_index+0x5e/0x80
[ 5980.659694][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5980.659694][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5980.659694][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5980.659694][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5980.659694][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5980.659694][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5980.659694][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5980.659694][   T73]      addrconf_dad_begin+0x310/0x670
[ 5980.659694][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5980.659694][   T73]      process_one_work+0x84d/0x18a0
[ 5980.659694][   T73]      worker_thread+0x587/0xd30
[ 5980.659694][   T73]      kthread+0x28a/0x350
[ 5980.659694][   T73]      ret_from_fork+0x31/0x70
[ 5980.659694][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5980.659694][   T73] 
[ 5980.661957][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5980.661957][   T73]      netdev_get_by_index+0x5e/0x80
[ 5980.661957][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5980.661957][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5980.661957][   T73]      ip6_route_add+0x1c/0x140
[ 5980.661957][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5980.661957][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5980.661957][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5980.661957][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5980.661957][   T73]      netlink_rcv_skb+0x130/0x360
[ 5980.661957][   T73]      netlink_unicast+0x449/0x710
[ 5980.661957][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5980.661957][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5980.661957][   T73]      ___sys_sendmsg+0xee/0x170
[ 5980.661957][   T73]      __sys_sendmsg+0xcd/0x170
[ 5980.661957][   T73]      do_syscall_64+0xc6/0x1e0
[ 5980.661957][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5980.661957][   T73] 
[ 5980.664534][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5980.664534][   T73]      netdev_get_by_index+0x5e/0x80
[ 5980.664534][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5980.664534][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5980.664534][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5980.664534][   T73]      ipv6_add_addr+0x411/0x2000
[ 5980.664534][   T73]      inet6_addr_add+0x30e/0xa40
[ 5980.664534][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5980.664534][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5980.664534][   T73]      netlink_rcv_skb+0x130/0x360
[ 5980.664534][   T73]      netlink_unicast+0x449/0x710
[ 5980.664534][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5980.664534][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5980.664534][   T73]      ___sys_sendmsg+0xee/0x170
[ 5980.664534][   T73]      __sys_sendmsg+0xcd/0x170
[ 5980.664534][   T73]      do_syscall_64+0xc6/0x1e0
[ 5980.664534][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5980.664534][   T73] 
[ 5980.667036][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5980.667036][   T73]      netdev_get_by_index+0x5e/0x80
[ 5980.667036][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5980.667036][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5980.667036][   T73]      ip6_route_add+0x1c/0x140
[ 5980.667036][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5980.667036][   T73]      addrconf_add_dev+0xe2/0x170
[ 5980.667036][   T73]      inet6_addr_add+0x12f/0xa40
[ 5980.667036][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5980.667036][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5980.667036][   T73]      netlink_rcv_skb+0x130/0x360
[ 5980.667036][   T73]      netlink_unicast+0x449/0x710
[ 5980.667036][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5980.667036][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5980.667036][   T73]      ___sys_sendmsg+0xee/0x170
[ 5980.667036][   T73]      __sys_sendmsg+0xcd/0x170
[ 5980.667036][   T73]      do_syscall_64+0xc6/0x1e0
[ 5980.667036][   T73] 
[ 5980.669481][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5980.669481][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5980.669481][   T73]      ipv6_find_idev+0x102/0x170
[ 5980.669481][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5980.669481][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5980.669481][   T73]      netlink_rcv_skb+0x130/0x360
[ 5980.669481][   T73]      netlink_unicast+0x449/0x710
[ 5980.669481][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5980.669481][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5980.669481][   T73]      ___sys_sendmsg+0xee/0x170
[ 5980.669481][   T73]      __sys_sendmsg+0xcd/0x170
[ 5980.669481][   T73]      do_syscall_64+0xc6/0x1e0
[ 5980.669481][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5980.669481][   T73] 
[ 5980.671406][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5980.671406][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5980.671406][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5980.671406][   T73]      ipv6_find_idev+0x102/0x170
[ 5980.671406][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5980.671406][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5980.671406][   T73]      netlink_rcv_skb+0x130/0x360
[ 5980.671406][   T73]      netlink_unicast+0x449/0x710
[ 5980.671406][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5980.671406][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5980.671406][   T73]      ___sys_sendmsg+0xee/0x170
[ 5980.671406][   T73]      __sys_sendmsg+0xcd/0x170
[ 5980.671406][   T73]      do_syscall_64+0xc6/0x1e0
[ 5980.671406][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5980.671406][   T73] 
[ 5990.839818][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 5990.840313][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5990.840313][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5990.840313][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5990.840313][   T73]      fib6_nh_init+0xa22/0x1580
[ 5990.840313][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5990.840313][   T73]      ip6_route_add+0x1c/0x140
[ 5990.840313][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5990.840313][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5990.840313][   T73]      netlink_rcv_skb+0x130/0x360
[ 5990.840313][   T73]      netlink_unicast+0x449/0x710
[ 5990.840313][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5990.840313][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5990.840313][   T73]      ___sys_sendmsg+0xee/0x170
[ 5990.840313][   T73]      __sys_sendmsg+0xcd/0x170
[ 5990.840313][   T73]      do_syscall_64+0xc6/0x1e0
[ 5990.840313][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5990.840313][   T73] 
[ 5990.842267][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 5990.842267][   T73]      dst_init+0x84/0x4a0
[ 5990.842267][   T73]      dst_alloc+0x97/0x150
[ 5990.842267][   T73]      ip6_dst_alloc+0x23/0x90
[ 5990.842267][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5990.842267][   T73]      ip6_pol_route+0x56f/0x840
[ 5990.842267][   T73]      fib6_rule_lookup+0x456/0x630
[ 5990.842267][   T73]      ip6_route_input+0x59c/0xa50
[ 5990.842267][   T73]      ipv6_rcv+0x397/0x810
[ 5990.842267][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5990.842267][   T73]      process_backlog+0x101/0x620
[ 5990.842267][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5990.842267][   T73]      net_rx_action+0x495/0xbe0
[ 5990.842267][   T73]      __do_softirq+0x1b5/0x7f6
[ 5990.842267][   T73] 
[ 5990.843943][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5990.843943][   T73]      netdev_get_by_index+0x5e/0x80
[ 5990.843943][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5990.843943][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5990.843943][   T73]      ip6_route_add+0x1c/0x140
[ 5990.843943][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5990.843943][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5990.843943][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5990.843943][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5990.843943][   T73]      netlink_rcv_skb+0x130/0x360
[ 5990.843943][   T73]      netlink_unicast+0x449/0x710
[ 5990.843943][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5990.843943][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5990.843943][   T73]      ___sys_sendmsg+0xee/0x170
[ 5990.843943][   T73]      __sys_sendmsg+0xcd/0x170
[ 5990.843943][   T73]      do_syscall_64+0xc6/0x1e0
[ 5990.843943][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5990.843943][   T73] 
[ 5990.845972][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5990.845972][   T73]      netdev_get_by_index+0x5e/0x80
[ 5990.845972][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5990.845972][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5990.845972][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5990.845972][   T73]      ipv6_add_addr+0x411/0x2000
[ 5990.845972][   T73]      inet6_addr_add+0x30e/0xa40
[ 5990.845972][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5990.845972][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5990.845972][   T73]      netlink_rcv_skb+0x130/0x360
[ 5990.845972][   T73]      netlink_unicast+0x449/0x710
[ 5990.845972][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5990.845972][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5990.845972][   T73]      ___sys_sendmsg+0xee/0x170
[ 5990.845972][   T73]      __sys_sendmsg+0xcd/0x170
[ 5990.845972][   T73]      do_syscall_64+0xc6/0x1e0
[ 5990.845972][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5990.845972][   T73] 
[ 5990.848016][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5990.848016][   T73]      netdev_get_by_index+0x5e/0x80
[ 5990.848016][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5990.848016][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5990.848016][   T73]      ip6_route_add+0x1c/0x140
[ 5990.848016][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5990.848016][   T73]      addrconf_add_dev+0xe2/0x170
[ 5990.848016][   T73]      inet6_addr_add+0x12f/0xa40
[ 5990.848016][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5990.848016][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5990.848016][   T73]      netlink_rcv_skb+0x130/0x360
[ 5990.848016][   T73]      netlink_unicast+0x449/0x710
[ 5990.848016][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5990.848016][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5990.848016][   T73]      ___sys_sendmsg+0xee/0x170
[ 5990.848016][   T73]      __sys_sendmsg+0xcd/0x170
[ 5990.848016][   T73]      do_syscall_64+0xc6/0x1e0
[ 5990.848016][   T73] 
[ 5990.850005][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5990.850005][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5990.850005][   T73]      ipv6_find_idev+0x102/0x170
[ 5990.850005][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5990.850005][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5990.850005][   T73]      netlink_rcv_skb+0x130/0x360
[ 5990.850005][   T73]      netlink_unicast+0x449/0x710
[ 5990.850005][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5990.850005][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5990.850005][   T73]      ___sys_sendmsg+0xee/0x170
[ 5990.850005][   T73]      __sys_sendmsg+0xcd/0x170
[ 5990.850005][   T73]      do_syscall_64+0xc6/0x1e0
[ 5990.850005][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5990.850005][   T73] 
[ 5990.851551][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 5990.851551][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5990.851551][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5990.851551][   T73]      ipv6_find_idev+0x102/0x170
[ 5990.851551][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5990.851551][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5990.851551][   T73]      netlink_rcv_skb+0x130/0x360
[ 5990.851551][   T73]      netlink_unicast+0x449/0x710
[ 5990.851551][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5990.851551][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5990.851551][   T73]      ___sys_sendmsg+0xee/0x170
[ 5990.851551][   T73]      __sys_sendmsg+0xcd/0x170
[ 5990.851551][   T73]      do_syscall_64+0xc6/0x1e0
[ 5990.851551][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5990.851551][   T73] 
[ 5990.853297][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 5990.853590][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5990.853590][   T73]      netdev_get_by_index+0x5e/0x80
[ 5990.853590][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5990.853590][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5990.853590][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5990.853590][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5990.853590][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5990.853590][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5990.853590][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5990.853590][   T73]      addrconf_dad_begin+0x310/0x670
[ 5990.853590][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5990.853590][   T73]      process_one_work+0x84d/0x18a0
[ 5990.853590][   T73]      worker_thread+0x587/0xd30
[ 5990.853590][   T73]      kthread+0x28a/0x350
[ 5990.853590][   T73]      ret_from_fork+0x31/0x70
[ 5990.853590][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5990.853590][   T73] 
[ 5990.855516][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5990.855516][   T73]      netdev_get_by_index+0x5e/0x80
[ 5990.855516][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5990.855516][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5990.855516][   T73]      ip6_route_add+0x1c/0x140
[ 5990.855516][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5990.855516][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5990.855516][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5990.855516][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5990.855516][   T73]      netlink_rcv_skb+0x130/0x360
[ 5990.855516][   T73]      netlink_unicast+0x449/0x710
[ 5990.855516][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5990.855516][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5990.855516][   T73]      ___sys_sendmsg+0xee/0x170
[ 5990.855516][   T73]      __sys_sendmsg+0xcd/0x170
[ 5990.855516][   T73]      do_syscall_64+0xc6/0x1e0
[ 5990.855516][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5990.855516][   T73] 
[ 5990.857538][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5990.857538][   T73]      netdev_get_by_index+0x5e/0x80
[ 5990.857538][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5990.857538][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5990.857538][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5990.857538][   T73]      ipv6_add_addr+0x411/0x2000
[ 5990.857538][   T73]      inet6_addr_add+0x30e/0xa40
[ 5990.857538][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5990.857538][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5990.857538][   T73]      netlink_rcv_skb+0x130/0x360
[ 5990.857538][   T73]      netlink_unicast+0x449/0x710
[ 5990.857538][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5990.857538][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5990.857538][   T73]      ___sys_sendmsg+0xee/0x170
[ 5990.857538][   T73]      __sys_sendmsg+0xcd/0x170
[ 5990.857538][   T73]      do_syscall_64+0xc6/0x1e0
[ 5990.857538][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5990.857538][   T73] 
[ 5990.859570][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5990.859570][   T73]      netdev_get_by_index+0x5e/0x80
[ 5990.859570][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5990.859570][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5990.859570][   T73]      ip6_route_add+0x1c/0x140
[ 5990.859570][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5990.859570][   T73]      addrconf_add_dev+0xe2/0x170
[ 5990.859570][   T73]      inet6_addr_add+0x12f/0xa40
[ 5990.859570][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5990.859570][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5990.859570][   T73]      netlink_rcv_skb+0x130/0x360
[ 5990.859570][   T73]      netlink_unicast+0x449/0x710
[ 5990.859570][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5990.859570][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5990.859570][   T73]      ___sys_sendmsg+0xee/0x170
[ 5990.859570][   T73]      __sys_sendmsg+0xcd/0x170
[ 5990.859570][   T73]      do_syscall_64+0xc6/0x1e0
[ 5990.859570][   T73] 
[ 5990.861559][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5990.861559][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5990.861559][   T73]      ipv6_find_idev+0x102/0x170
[ 5990.861559][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5990.861559][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5990.861559][   T73]      netlink_rcv_skb+0x130/0x360
[ 5990.861559][   T73]      netlink_unicast+0x449/0x710
[ 5990.861559][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5990.861559][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5990.861559][   T73]      ___sys_sendmsg+0xee/0x170
[ 5990.861559][   T73]      __sys_sendmsg+0xcd/0x170
[ 5990.861559][   T73]      do_syscall_64+0xc6/0x1e0
[ 5990.861559][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5990.861559][   T73] 
[ 5990.863126][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 5990.863126][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5990.863126][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5990.863126][   T73]      ipv6_find_idev+0x102/0x170
[ 5990.863126][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5990.863126][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5990.863126][   T73]      netlink_rcv_skb+0x130/0x360
[ 5990.863126][   T73]      netlink_unicast+0x449/0x710
[ 5990.863126][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5990.863126][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5990.863126][   T73]      ___sys_sendmsg+0xee/0x170
[ 5990.863126][   T73]      __sys_sendmsg+0xcd/0x170
[ 5990.863126][   T73]      do_syscall_64+0xc6/0x1e0
[ 5990.863126][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5990.863126][   T73] 
[ 5990.864839][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 5990.865118][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5990.865118][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 5990.865118][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 5990.865118][   T73]      fib6_nh_init+0xa22/0x1580
[ 5990.865118][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5990.865118][   T73]      ip6_route_add+0x1c/0x140
[ 5990.865118][   T73]      inet6_rtm_newroute+0x104/0x110
[ 5990.865118][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5990.865118][   T73]      netlink_rcv_skb+0x130/0x360
[ 5990.865118][   T73]      netlink_unicast+0x449/0x710
[ 5990.865118][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5990.865118][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5990.865118][   T73]      ___sys_sendmsg+0xee/0x170
[ 5990.865118][   T73]      __sys_sendmsg+0xcd/0x170
[ 5990.865118][   T73]      do_syscall_64+0xc6/0x1e0
[ 5990.865118][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5990.865118][   T73] 
[ 5990.867212][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 5990.867212][   T73]      dst_init+0x84/0x4a0
[ 5990.867212][   T73]      dst_alloc+0x97/0x150
[ 5990.867212][   T73]      ip6_dst_alloc+0x23/0x90
[ 5990.867212][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 5990.867212][   T73]      ip6_pol_route+0x56f/0x840
[ 5990.867212][   T73]      fib6_rule_lookup+0x456/0x630
[ 5990.867212][   T73]      ip6_route_input+0x59c/0xa50
[ 5990.867212][   T73]      ipv6_rcv+0x397/0x810
[ 5990.867212][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 5990.867212][   T73]      process_backlog+0x101/0x620
[ 5990.867212][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 5990.867212][   T73]      net_rx_action+0x495/0xbe0
[ 5990.867212][   T73]      __do_softirq+0x1b5/0x7f6
[ 5990.867212][   T73] 
[ 5990.869114][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5990.869114][   T73]      netdev_get_by_index+0x5e/0x80
[ 5990.869114][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5990.869114][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5990.869114][   T73]      ip6_route_add+0x1c/0x140
[ 5990.869114][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5990.869114][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5990.869114][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5990.869114][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5990.869114][   T73]      netlink_rcv_skb+0x130/0x360
[ 5990.869114][   T73]      netlink_unicast+0x449/0x710
[ 5990.869114][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5990.869114][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5990.869114][   T73]      ___sys_sendmsg+0xee/0x170
[ 5990.869114][   T73]      __sys_sendmsg+0xcd/0x170
[ 5990.869114][   T73]      do_syscall_64+0xc6/0x1e0
[ 5990.869114][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5990.869114][   T73] 
[ 5990.871388][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5990.871388][   T73]      netdev_get_by_index+0x5e/0x80
[ 5990.871388][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5990.871388][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5990.871388][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5990.871388][   T73]      ipv6_add_addr+0x411/0x2000
[ 5990.871388][   T73]      inet6_addr_add+0x30e/0xa40
[ 5990.871388][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5990.871388][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5990.871388][   T73]      netlink_rcv_skb+0x130/0x360
[ 5990.871388][   T73]      netlink_unicast+0x449/0x710
[ 5990.871388][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5990.871388][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5990.871388][   T73]      ___sys_sendmsg+0xee/0x170
[ 5990.871388][   T73]      __sys_sendmsg+0xcd/0x170
[ 5990.871388][   T73]      do_syscall_64+0xc6/0x1e0
[ 5990.871388][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5990.871388][   T73] 
[ 5990.873650][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5990.873650][   T73]      netdev_get_by_index+0x5e/0x80
[ 5990.873650][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5990.873650][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5990.873650][   T73]      ip6_route_add+0x1c/0x140
[ 5990.873650][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5990.873650][   T73]      addrconf_add_dev+0xe2/0x170
[ 5990.873650][   T73]      inet6_addr_add+0x12f/0xa40
[ 5990.873650][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5990.873650][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5990.873650][   T73]      netlink_rcv_skb+0x130/0x360
[ 5990.873650][   T73]      netlink_unicast+0x449/0x710
[ 5990.873650][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5990.873650][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5990.873650][   T73]      ___sys_sendmsg+0xee/0x170
[ 5990.873650][   T73]      __sys_sendmsg+0xcd/0x170
[ 5990.873650][   T73]      do_syscall_64+0xc6/0x1e0
[ 5990.873650][   T73] 
[ 5990.875901][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5990.875901][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5990.875901][   T73]      ipv6_find_idev+0x102/0x170
[ 5990.875901][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5990.875901][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5990.875901][   T73]      netlink_rcv_skb+0x130/0x360
[ 5990.875901][   T73]      netlink_unicast+0x449/0x710
[ 5990.875901][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5990.875901][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5990.875901][   T73]      ___sys_sendmsg+0xee/0x170
[ 5990.875901][   T73]      __sys_sendmsg+0xcd/0x170
[ 5990.875901][   T73]      do_syscall_64+0xc6/0x1e0
[ 5990.875901][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5990.875901][   T73] 
[ 5990.877713][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 5990.877713][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5990.877713][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5990.877713][   T73]      ipv6_find_idev+0x102/0x170
[ 5990.877713][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5990.877713][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5990.877713][   T73]      netlink_rcv_skb+0x130/0x360
[ 5990.877713][   T73]      netlink_unicast+0x449/0x710
[ 5990.877713][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5990.877713][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5990.877713][   T73]      ___sys_sendmsg+0xee/0x170
[ 5990.877713][   T73]      __sys_sendmsg+0xcd/0x170
[ 5990.877713][   T73]      do_syscall_64+0xc6/0x1e0
[ 5990.877713][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5990.877713][   T73] 
[ 5990.879602][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 5990.879945][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5990.879945][   T73]      netdev_get_by_index+0x5e/0x80
[ 5990.879945][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5990.879945][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5990.879945][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 5990.879945][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 5990.879945][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 5990.879945][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 5990.879945][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 5990.879945][   T73]      addrconf_dad_begin+0x310/0x670
[ 5990.879945][   T73]      addrconf_dad_work+0x10b/0xab0
[ 5990.879945][   T73]      process_one_work+0x84d/0x18a0
[ 5990.879945][   T73]      worker_thread+0x587/0xd30
[ 5990.879945][   T73]      kthread+0x28a/0x350
[ 5990.879945][   T73]      ret_from_fork+0x31/0x70
[ 5990.879945][   T73]      ret_from_fork_asm+0x1a/0x30
[ 5990.879945][   T73] 
[ 5990.882088][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5990.882088][   T73]      netdev_get_by_index+0x5e/0x80
[ 5990.882088][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5990.882088][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5990.882088][   T73]      ip6_route_add+0x1c/0x140
[ 5990.882088][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 5990.882088][   T73]      inet6_addr_add+0x4f8/0xa40
[ 5990.882088][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5990.882088][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5990.882088][   T73]      netlink_rcv_skb+0x130/0x360
[ 5990.882088][   T73]      netlink_unicast+0x449/0x710
[ 5990.882088][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5990.882088][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5990.882088][   T73]      ___sys_sendmsg+0xee/0x170
[ 5990.882088][   T73]      __sys_sendmsg+0xcd/0x170
[ 5990.882088][   T73]      do_syscall_64+0xc6/0x1e0
[ 5990.882088][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5990.882088][   T73] 
[ 5990.884359][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5990.884359][   T73]      netdev_get_by_index+0x5e/0x80
[ 5990.884359][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5990.884359][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5990.884359][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 5990.884359][   T73]      ipv6_add_addr+0x411/0x2000
[ 5990.884359][   T73]      inet6_addr_add+0x30e/0xa40
[ 5990.884359][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5990.884359][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5990.884359][   T73]      netlink_rcv_skb+0x130/0x360
[ 5990.884359][   T73]      netlink_unicast+0x449/0x710
[ 5990.884359][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5990.884359][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5990.884359][   T73]      ___sys_sendmsg+0xee/0x170
[ 5990.884359][   T73]      __sys_sendmsg+0xcd/0x170
[ 5990.884359][   T73]      do_syscall_64+0xc6/0x1e0
[ 5990.884359][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5990.884359][   T73] 
[ 5990.886612][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5990.886612][   T73]      netdev_get_by_index+0x5e/0x80
[ 5990.886612][   T73]      fib6_nh_init+0x3d8/0x1580
[ 5990.886612][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 5990.886612][   T73]      ip6_route_add+0x1c/0x140
[ 5990.886612][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 5990.886612][   T73]      addrconf_add_dev+0xe2/0x170
[ 5990.886612][   T73]      inet6_addr_add+0x12f/0xa40
[ 5990.886612][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 5990.886612][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5990.886612][   T73]      netlink_rcv_skb+0x130/0x360
[ 5990.886612][   T73]      netlink_unicast+0x449/0x710
[ 5990.886612][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5990.886612][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5990.886612][   T73]      ___sys_sendmsg+0xee/0x170
[ 5990.886612][   T73]      __sys_sendmsg+0xcd/0x170
[ 5990.886612][   T73]      do_syscall_64+0xc6/0x1e0
[ 5990.886612][   T73] 
[ 5990.888899][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5990.888899][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 5990.888899][   T73]      ipv6_find_idev+0x102/0x170
[ 5990.888899][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5990.888899][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5990.888899][   T73]      netlink_rcv_skb+0x130/0x360
[ 5990.888899][   T73]      netlink_unicast+0x449/0x710
[ 5990.888899][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5990.888899][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5990.888899][   T73]      ___sys_sendmsg+0xee/0x170
[ 5990.888899][   T73]      __sys_sendmsg+0xcd/0x170
[ 5990.888899][   T73]      do_syscall_64+0xc6/0x1e0
[ 5990.888899][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5990.888899][   T73] 
[ 5990.890623][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 5990.890623][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 5990.890623][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 5990.890623][   T73]      ipv6_find_idev+0x102/0x170
[ 5990.890623][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 5990.890623][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 5990.890623][   T73]      netlink_rcv_skb+0x130/0x360
[ 5990.890623][   T73]      netlink_unicast+0x449/0x710
[ 5990.890623][   T73]      netlink_sendmsg+0x723/0xbe0
[ 5990.890623][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 5990.890623][   T73]      ___sys_sendmsg+0xee/0x170
[ 5990.890623][   T73]      __sys_sendmsg+0xcd/0x170
[ 5990.890623][   T73]      do_syscall_64+0xc6/0x1e0
[ 5990.890623][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 5990.890623][   T73] 
[ 6001.127777][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6001.128240][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6001.128240][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6001.128240][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6001.128240][   T73]      fib6_nh_init+0xa22/0x1580
[ 6001.128240][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6001.128240][   T73]      ip6_route_add+0x1c/0x140
[ 6001.128240][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6001.128240][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6001.128240][   T73]      netlink_rcv_skb+0x130/0x360
[ 6001.128240][   T73]      netlink_unicast+0x449/0x710
[ 6001.128240][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6001.128240][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6001.128240][   T73]      ___sys_sendmsg+0xee/0x170
[ 6001.128240][   T73]      __sys_sendmsg+0xcd/0x170
[ 6001.128240][   T73]      do_syscall_64+0xc6/0x1e0
[ 6001.128240][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6001.128240][   T73] 
[ 6001.130247][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6001.130247][   T73]      dst_init+0x84/0x4a0
[ 6001.130247][   T73]      dst_alloc+0x97/0x150
[ 6001.130247][   T73]      ip6_dst_alloc+0x23/0x90
[ 6001.130247][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6001.130247][   T73]      ip6_pol_route+0x56f/0x840
[ 6001.130247][   T73]      fib6_rule_lookup+0x456/0x630
[ 6001.130247][   T73]      ip6_route_input+0x59c/0xa50
[ 6001.130247][   T73]      ipv6_rcv+0x397/0x810
[ 6001.130247][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6001.130247][   T73]      process_backlog+0x101/0x620
[ 6001.130247][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6001.130247][   T73]      net_rx_action+0x495/0xbe0
[ 6001.130247][   T73]      __do_softirq+0x1b5/0x7f6
[ 6001.130247][   T73] 
[ 6001.131910][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6001.131910][   T73]      netdev_get_by_index+0x5e/0x80
[ 6001.131910][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6001.131910][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6001.131910][   T73]      ip6_route_add+0x1c/0x140
[ 6001.131910][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6001.131910][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6001.131910][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6001.131910][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6001.131910][   T73]      netlink_rcv_skb+0x130/0x360
[ 6001.131910][   T73]      netlink_unicast+0x449/0x710
[ 6001.131910][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6001.131910][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6001.131910][   T73]      ___sys_sendmsg+0xee/0x170
[ 6001.131910][   T73]      __sys_sendmsg+0xcd/0x170
[ 6001.131910][   T73]      do_syscall_64+0xc6/0x1e0
[ 6001.131910][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6001.131910][   T73] 
[ 6001.133933][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6001.133933][   T73]      netdev_get_by_index+0x5e/0x80
[ 6001.133933][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6001.133933][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6001.133933][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6001.133933][   T73]      ipv6_add_addr+0x411/0x2000
[ 6001.133933][   T73]      inet6_addr_add+0x30e/0xa40
[ 6001.133933][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6001.133933][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6001.133933][   T73]      netlink_rcv_skb+0x130/0x360
[ 6001.133933][   T73]      netlink_unicast+0x449/0x710
[ 6001.133933][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6001.133933][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6001.133933][   T73]      ___sys_sendmsg+0xee/0x170
[ 6001.133933][   T73]      __sys_sendmsg+0xcd/0x170
[ 6001.133933][   T73]      do_syscall_64+0xc6/0x1e0
[ 6001.133933][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6001.133933][   T73] 
[ 6001.135963][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6001.135963][   T73]      netdev_get_by_index+0x5e/0x80
[ 6001.135963][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6001.135963][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6001.135963][   T73]      ip6_route_add+0x1c/0x140
[ 6001.135963][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6001.135963][   T73]      addrconf_add_dev+0xe2/0x170
[ 6001.135963][   T73]      inet6_addr_add+0x12f/0xa40
[ 6001.135963][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6001.135963][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6001.135963][   T73]      netlink_rcv_skb+0x130/0x360
[ 6001.135963][   T73]      netlink_unicast+0x449/0x710
[ 6001.135963][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6001.135963][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6001.135963][   T73]      ___sys_sendmsg+0xee/0x170
[ 6001.135963][   T73]      __sys_sendmsg+0xcd/0x170
[ 6001.135963][   T73]      do_syscall_64+0xc6/0x1e0
[ 6001.135963][   T73] 
[ 6001.137969][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6001.137969][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6001.137969][   T73]      ipv6_find_idev+0x102/0x170
[ 6001.137969][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6001.137969][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6001.137969][   T73]      netlink_rcv_skb+0x130/0x360
[ 6001.137969][   T73]      netlink_unicast+0x449/0x710
[ 6001.137969][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6001.137969][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6001.137969][   T73]      ___sys_sendmsg+0xee/0x170
[ 6001.137969][   T73]      __sys_sendmsg+0xcd/0x170
[ 6001.137969][   T73]      do_syscall_64+0xc6/0x1e0
[ 6001.137969][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6001.137969][   T73] 
[ 6001.139521][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6001.139521][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6001.139521][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6001.139521][   T73]      ipv6_find_idev+0x102/0x170
[ 6001.139521][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6001.139521][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6001.139521][   T73]      netlink_rcv_skb+0x130/0x360
[ 6001.139521][   T73]      netlink_unicast+0x449/0x710
[ 6001.139521][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6001.139521][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6001.139521][   T73]      ___sys_sendmsg+0xee/0x170
[ 6001.139521][   T73]      __sys_sendmsg+0xcd/0x170
[ 6001.139521][   T73]      do_syscall_64+0xc6/0x1e0
[ 6001.139521][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6001.139521][   T73] 
[ 6001.141235][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6001.141516][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6001.141516][   T73]      netdev_get_by_index+0x5e/0x80
[ 6001.141516][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6001.141516][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6001.141516][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6001.141516][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6001.141516][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6001.141516][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6001.141516][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6001.141516][   T73]      addrconf_dad_begin+0x310/0x670
[ 6001.141516][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6001.141516][   T73]      process_one_work+0x84d/0x18a0
[ 6001.141516][   T73]      worker_thread+0x587/0xd30
[ 6001.141516][   T73]      kthread+0x28a/0x350
[ 6001.141516][   T73]      ret_from_fork+0x31/0x70
[ 6001.141516][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6001.141516][   T73] 
[ 6001.143446][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6001.143446][   T73]      netdev_get_by_index+0x5e/0x80
[ 6001.143446][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6001.143446][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6001.143446][   T73]      ip6_route_add+0x1c/0x140
[ 6001.143446][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6001.143446][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6001.143446][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6001.143446][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6001.143446][   T73]      netlink_rcv_skb+0x130/0x360
[ 6001.143446][   T73]      netlink_unicast+0x449/0x710
[ 6001.143446][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6001.143446][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6001.143446][   T73]      ___sys_sendmsg+0xee/0x170
[ 6001.143446][   T73]      __sys_sendmsg+0xcd/0x170
[ 6001.143446][   T73]      do_syscall_64+0xc6/0x1e0
[ 6001.143446][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6001.143446][   T73] 
[ 6001.145465][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6001.145465][   T73]      netdev_get_by_index+0x5e/0x80
[ 6001.145465][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6001.145465][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6001.145465][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6001.145465][   T73]      ipv6_add_addr+0x411/0x2000
[ 6001.145465][   T73]      inet6_addr_add+0x30e/0xa40
[ 6001.145465][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6001.145465][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6001.145465][   T73]      netlink_rcv_skb+0x130/0x360
[ 6001.145465][   T73]      netlink_unicast+0x449/0x710
[ 6001.145465][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6001.145465][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6001.145465][   T73]      ___sys_sendmsg+0xee/0x170
[ 6001.145465][   T73]      __sys_sendmsg+0xcd/0x170
[ 6001.145465][   T73]      do_syscall_64+0xc6/0x1e0
[ 6001.145465][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6001.145465][   T73] 
[ 6001.147499][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6001.147499][   T73]      netdev_get_by_index+0x5e/0x80
[ 6001.147499][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6001.147499][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6001.147499][   T73]      ip6_route_add+0x1c/0x140
[ 6001.147499][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6001.147499][   T73]      addrconf_add_dev+0xe2/0x170
[ 6001.147499][   T73]      inet6_addr_add+0x12f/0xa40
[ 6001.147499][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6001.147499][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6001.147499][   T73]      netlink_rcv_skb+0x130/0x360
[ 6001.147499][   T73]      netlink_unicast+0x449/0x710
[ 6001.147499][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6001.147499][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6001.147499][   T73]      ___sys_sendmsg+0xee/0x170
[ 6001.147499][   T73]      __sys_sendmsg+0xcd/0x170
[ 6001.147499][   T73]      do_syscall_64+0xc6/0x1e0
[ 6001.147499][   T73] 
[ 6001.149484][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6001.149484][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6001.149484][   T73]      ipv6_find_idev+0x102/0x170
[ 6001.149484][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6001.149484][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6001.149484][   T73]      netlink_rcv_skb+0x130/0x360
[ 6001.149484][   T73]      netlink_unicast+0x449/0x710
[ 6001.149484][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6001.149484][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6001.149484][   T73]      ___sys_sendmsg+0xee/0x170
[ 6001.149484][   T73]      __sys_sendmsg+0xcd/0x170
[ 6001.149484][   T73]      do_syscall_64+0xc6/0x1e0
[ 6001.149484][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6001.149484][   T73] 
[ 6001.151039][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6001.151039][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6001.151039][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6001.151039][   T73]      ipv6_find_idev+0x102/0x170
[ 6001.151039][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6001.151039][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6001.151039][   T73]      netlink_rcv_skb+0x130/0x360
[ 6001.151039][   T73]      netlink_unicast+0x449/0x710
[ 6001.151039][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6001.151039][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6001.151039][   T73]      ___sys_sendmsg+0xee/0x170
[ 6001.151039][   T73]      __sys_sendmsg+0xcd/0x170
[ 6001.151039][   T73]      do_syscall_64+0xc6/0x1e0
[ 6001.151039][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6001.151039][   T73] 
[ 6001.152741][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6001.153016][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6001.153016][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6001.153016][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6001.153016][   T73]      fib6_nh_init+0xa22/0x1580
[ 6001.153016][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6001.153016][   T73]      ip6_route_add+0x1c/0x140
[ 6001.153016][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6001.153016][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6001.153016][   T73]      netlink_rcv_skb+0x130/0x360
[ 6001.153016][   T73]      netlink_unicast+0x449/0x710
[ 6001.153016][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6001.153016][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6001.153016][   T73]      ___sys_sendmsg+0xee/0x170
[ 6001.153016][   T73]      __sys_sendmsg+0xcd/0x170
[ 6001.153016][   T73]      do_syscall_64+0xc6/0x1e0
[ 6001.153016][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6001.153016][   T73] 
[ 6001.155046][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6001.155046][   T73]      dst_init+0x84/0x4a0
[ 6001.155046][   T73]      dst_alloc+0x97/0x150
[ 6001.155046][   T73]      ip6_dst_alloc+0x23/0x90
[ 6001.155046][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6001.155046][   T73]      ip6_pol_route+0x56f/0x840
[ 6001.155046][   T73]      fib6_rule_lookup+0x456/0x630
[ 6001.155046][   T73]      ip6_route_input+0x59c/0xa50
[ 6001.155046][   T73]      ipv6_rcv+0x397/0x810
[ 6001.155046][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6001.155046][   T73]      process_backlog+0x101/0x620
[ 6001.155046][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6001.155046][   T73]      net_rx_action+0x495/0xbe0
[ 6001.155046][   T73]      __do_softirq+0x1b5/0x7f6
[ 6001.155046][   T73] 
[ 6001.156959][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6001.156959][   T73]      netdev_get_by_index+0x5e/0x80
[ 6001.156959][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6001.156959][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6001.156959][   T73]      ip6_route_add+0x1c/0x140
[ 6001.156959][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6001.156959][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6001.156959][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6001.156959][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6001.156959][   T73]      netlink_rcv_skb+0x130/0x360
[ 6001.156959][   T73]      netlink_unicast+0x449/0x710
[ 6001.156959][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6001.156959][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6001.156959][   T73]      ___sys_sendmsg+0xee/0x170
[ 6001.156959][   T73]      __sys_sendmsg+0xcd/0x170
[ 6001.156959][   T73]      do_syscall_64+0xc6/0x1e0
[ 6001.156959][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6001.156959][   T73] 
[ 6001.159217][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6001.159217][   T73]      netdev_get_by_index+0x5e/0x80
[ 6001.159217][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6001.159217][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6001.159217][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6001.159217][   T73]      ipv6_add_addr+0x411/0x2000
[ 6001.159217][   T73]      inet6_addr_add+0x30e/0xa40
[ 6001.159217][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6001.159217][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6001.159217][   T73]      netlink_rcv_skb+0x130/0x360
[ 6001.159217][   T73]      netlink_unicast+0x449/0x710
[ 6001.159217][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6001.159217][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6001.159217][   T73]      ___sys_sendmsg+0xee/0x170
[ 6001.159217][   T73]      __sys_sendmsg+0xcd/0x170
[ 6001.159217][   T73]      do_syscall_64+0xc6/0x1e0
[ 6001.159217][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6001.159217][   T73] 
[ 6001.161488][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6001.161488][   T73]      netdev_get_by_index+0x5e/0x80
[ 6001.161488][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6001.161488][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6001.161488][   T73]      ip6_route_add+0x1c/0x140
[ 6001.161488][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6001.161488][   T73]      addrconf_add_dev+0xe2/0x170
[ 6001.161488][   T73]      inet6_addr_add+0x12f/0xa40
[ 6001.161488][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6001.161488][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6001.161488][   T73]      netlink_rcv_skb+0x130/0x360
[ 6001.161488][   T73]      netlink_unicast+0x449/0x710
[ 6001.161488][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6001.161488][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6001.161488][   T73]      ___sys_sendmsg+0xee/0x170
[ 6001.161488][   T73]      __sys_sendmsg+0xcd/0x170
[ 6001.161488][   T73]      do_syscall_64+0xc6/0x1e0
[ 6001.161488][   T73] 
[ 6001.163717][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6001.163717][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6001.163717][   T73]      ipv6_find_idev+0x102/0x170
[ 6001.163717][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6001.163717][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6001.163717][   T73]      netlink_rcv_skb+0x130/0x360
[ 6001.163717][   T73]      netlink_unicast+0x449/0x710
[ 6001.163717][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6001.163717][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6001.163717][   T73]      ___sys_sendmsg+0xee/0x170
[ 6001.163717][   T73]      __sys_sendmsg+0xcd/0x170
[ 6001.163717][   T73]      do_syscall_64+0xc6/0x1e0
[ 6001.163717][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6001.163717][   T73] 
[ 6001.165513][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6001.165513][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6001.165513][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6001.165513][   T73]      ipv6_find_idev+0x102/0x170
[ 6001.165513][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6001.165513][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6001.165513][   T73]      netlink_rcv_skb+0x130/0x360
[ 6001.165513][   T73]      netlink_unicast+0x449/0x710
[ 6001.165513][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6001.165513][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6001.165513][   T73]      ___sys_sendmsg+0xee/0x170
[ 6001.165513][   T73]      __sys_sendmsg+0xcd/0x170
[ 6001.165513][   T73]      do_syscall_64+0xc6/0x1e0
[ 6001.165513][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6001.165513][   T73] 
[ 6001.167406][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6001.167685][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6001.167685][   T73]      netdev_get_by_index+0x5e/0x80
[ 6001.167685][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6001.167685][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6001.167685][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6001.167685][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6001.167685][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6001.167685][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6001.167685][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6001.167685][   T73]      addrconf_dad_begin+0x310/0x670
[ 6001.167685][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6001.167685][   T73]      process_one_work+0x84d/0x18a0
[ 6001.167685][   T73]      worker_thread+0x587/0xd30
[ 6001.167685][   T73]      kthread+0x28a/0x350
[ 6001.167685][   T73]      ret_from_fork+0x31/0x70
[ 6001.167685][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6001.167685][   T73] 
[ 6001.169856][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6001.169856][   T73]      netdev_get_by_index+0x5e/0x80
[ 6001.169856][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6001.169856][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6001.169856][   T73]      ip6_route_add+0x1c/0x140
[ 6001.169856][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6001.169856][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6001.169856][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6001.169856][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6001.169856][   T73]      netlink_rcv_skb+0x130/0x360
[ 6001.169856][   T73]      netlink_unicast+0x449/0x710
[ 6001.169856][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6001.169856][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6001.169856][   T73]      ___sys_sendmsg+0xee/0x170
[ 6001.169856][   T73]      __sys_sendmsg+0xcd/0x170
[ 6001.169856][   T73]      do_syscall_64+0xc6/0x1e0
[ 6001.169856][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6001.169856][   T73] 
[ 6001.172121][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6001.172121][   T73]      netdev_get_by_index+0x5e/0x80
[ 6001.172121][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6001.172121][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6001.172121][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6001.172121][   T73]      ipv6_add_addr+0x411/0x2000
[ 6001.172121][   T73]      inet6_addr_add+0x30e/0xa40
[ 6001.172121][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6001.172121][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6001.172121][   T73]      netlink_rcv_skb+0x130/0x360
[ 6001.172121][   T73]      netlink_unicast+0x449/0x710
[ 6001.172121][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6001.172121][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6001.172121][   T73]      ___sys_sendmsg+0xee/0x170
[ 6001.172121][   T73]      __sys_sendmsg+0xcd/0x170
[ 6001.172121][   T73]      do_syscall_64+0xc6/0x1e0
[ 6001.172121][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6001.172121][   T73] 
[ 6001.174382][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6001.174382][   T73]      netdev_get_by_index+0x5e/0x80
[ 6001.174382][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6001.174382][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6001.174382][   T73]      ip6_route_add+0x1c/0x140
[ 6001.174382][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6001.174382][   T73]      addrconf_add_dev+0xe2/0x170
[ 6001.174382][   T73]      inet6_addr_add+0x12f/0xa40
[ 6001.174382][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6001.174382][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6001.174382][   T73]      netlink_rcv_skb+0x130/0x360
[ 6001.174382][   T73]      netlink_unicast+0x449/0x710
[ 6001.174382][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6001.174382][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6001.174382][   T73]      ___sys_sendmsg+0xee/0x170
[ 6001.174382][   T73]      __sys_sendmsg+0xcd/0x170
[ 6001.174382][   T73]      do_syscall_64+0xc6/0x1e0
[ 6001.174382][   T73] 
[ 6001.177177][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6001.177177][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6001.177177][   T73]      ipv6_find_idev+0x102/0x170
[ 6001.177177][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6001.177177][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6001.177177][   T73]      netlink_rcv_skb+0x130/0x360
[ 6001.177177][   T73]      netlink_unicast+0x449/0x710
[ 6001.177177][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6001.177177][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6001.177177][   T73]      ___sys_sendmsg+0xee/0x170
[ 6001.177177][   T73]      __sys_sendmsg+0xcd/0x170
[ 6001.177177][   T73]      do_syscall_64+0xc6/0x1e0
[ 6001.177177][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6001.177177][   T73] 
[ 6001.178940][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6001.178940][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6001.178940][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6001.178940][   T73]      ipv6_find_idev+0x102/0x170
[ 6001.178940][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6001.178940][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6001.178940][   T73]      netlink_rcv_skb+0x130/0x360
[ 6001.178940][   T73]      netlink_unicast+0x449/0x710
[ 6001.178940][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6001.178940][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6001.178940][   T73]      ___sys_sendmsg+0xee/0x170
[ 6001.178940][   T73]      __sys_sendmsg+0xcd/0x170
[ 6001.178940][   T73]      do_syscall_64+0xc6/0x1e0
[ 6001.178940][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6001.178940][   T73] 
[ 6011.423771][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6011.424283][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6011.424283][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6011.424283][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6011.424283][   T73]      fib6_nh_init+0xa22/0x1580
[ 6011.424283][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6011.424283][   T73]      ip6_route_add+0x1c/0x140
[ 6011.424283][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6011.424283][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6011.424283][   T73]      netlink_rcv_skb+0x130/0x360
[ 6011.424283][   T73]      netlink_unicast+0x449/0x710
[ 6011.424283][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6011.424283][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6011.424283][   T73]      ___sys_sendmsg+0xee/0x170
[ 6011.424283][   T73]      __sys_sendmsg+0xcd/0x170
[ 6011.424283][   T73]      do_syscall_64+0xc6/0x1e0
[ 6011.424283][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6011.424283][   T73] 
[ 6011.426247][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6011.426247][   T73]      dst_init+0x84/0x4a0
[ 6011.426247][   T73]      dst_alloc+0x97/0x150
[ 6011.426247][   T73]      ip6_dst_alloc+0x23/0x90
[ 6011.426247][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6011.426247][   T73]      ip6_pol_route+0x56f/0x840
[ 6011.426247][   T73]      fib6_rule_lookup+0x456/0x630
[ 6011.426247][   T73]      ip6_route_input+0x59c/0xa50
[ 6011.426247][   T73]      ipv6_rcv+0x397/0x810
[ 6011.426247][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6011.426247][   T73]      process_backlog+0x101/0x620
[ 6011.426247][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6011.426247][   T73]      net_rx_action+0x495/0xbe0
[ 6011.426247][   T73]      __do_softirq+0x1b5/0x7f6
[ 6011.426247][   T73] 
[ 6011.427928][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6011.427928][   T73]      netdev_get_by_index+0x5e/0x80
[ 6011.427928][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6011.427928][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6011.427928][   T73]      ip6_route_add+0x1c/0x140
[ 6011.427928][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6011.427928][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6011.427928][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6011.427928][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6011.427928][   T73]      netlink_rcv_skb+0x130/0x360
[ 6011.427928][   T73]      netlink_unicast+0x449/0x710
[ 6011.427928][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6011.427928][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6011.427928][   T73]      ___sys_sendmsg+0xee/0x170
[ 6011.427928][   T73]      __sys_sendmsg+0xcd/0x170
[ 6011.427928][   T73]      do_syscall_64+0xc6/0x1e0
[ 6011.427928][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6011.427928][   T73] 
[ 6011.429983][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6011.429983][   T73]      netdev_get_by_index+0x5e/0x80
[ 6011.429983][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6011.429983][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6011.429983][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6011.429983][   T73]      ipv6_add_addr+0x411/0x2000
[ 6011.429983][   T73]      inet6_addr_add+0x30e/0xa40
[ 6011.429983][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6011.429983][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6011.429983][   T73]      netlink_rcv_skb+0x130/0x360
[ 6011.429983][   T73]      netlink_unicast+0x449/0x710
[ 6011.429983][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6011.429983][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6011.429983][   T73]      ___sys_sendmsg+0xee/0x170
[ 6011.429983][   T73]      __sys_sendmsg+0xcd/0x170
[ 6011.429983][   T73]      do_syscall_64+0xc6/0x1e0
[ 6011.429983][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6011.429983][   T73] 
[ 6011.432023][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6011.432023][   T73]      netdev_get_by_index+0x5e/0x80
[ 6011.432023][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6011.432023][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6011.432023][   T73]      ip6_route_add+0x1c/0x140
[ 6011.432023][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6011.432023][   T73]      addrconf_add_dev+0xe2/0x170
[ 6011.432023][   T73]      inet6_addr_add+0x12f/0xa40
[ 6011.432023][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6011.432023][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6011.432023][   T73]      netlink_rcv_skb+0x130/0x360
[ 6011.432023][   T73]      netlink_unicast+0x449/0x710
[ 6011.432023][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6011.432023][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6011.432023][   T73]      ___sys_sendmsg+0xee/0x170
[ 6011.432023][   T73]      __sys_sendmsg+0xcd/0x170
[ 6011.432023][   T73]      do_syscall_64+0xc6/0x1e0
[ 6011.432023][   T73] 
[ 6011.434031][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6011.434031][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6011.434031][   T73]      ipv6_find_idev+0x102/0x170
[ 6011.434031][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6011.434031][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6011.434031][   T73]      netlink_rcv_skb+0x130/0x360
[ 6011.434031][   T73]      netlink_unicast+0x449/0x710
[ 6011.434031][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6011.434031][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6011.434031][   T73]      ___sys_sendmsg+0xee/0x170
[ 6011.434031][   T73]      __sys_sendmsg+0xcd/0x170
[ 6011.434031][   T73]      do_syscall_64+0xc6/0x1e0
[ 6011.434031][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6011.434031][   T73] 
[ 6011.435598][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6011.435598][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6011.435598][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6011.435598][   T73]      ipv6_find_idev+0x102/0x170
[ 6011.435598][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6011.435598][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6011.435598][   T73]      netlink_rcv_skb+0x130/0x360
[ 6011.435598][   T73]      netlink_unicast+0x449/0x710
[ 6011.435598][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6011.435598][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6011.435598][   T73]      ___sys_sendmsg+0xee/0x170
[ 6011.435598][   T73]      __sys_sendmsg+0xcd/0x170
[ 6011.435598][   T73]      do_syscall_64+0xc6/0x1e0
[ 6011.435598][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6011.435598][   T73] 
[ 6011.437343][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6011.437622][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6011.437622][   T73]      netdev_get_by_index+0x5e/0x80
[ 6011.437622][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6011.437622][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6011.437622][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6011.437622][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6011.437622][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6011.437622][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6011.437622][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6011.437622][   T73]      addrconf_dad_begin+0x310/0x670
[ 6011.437622][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6011.437622][   T73]      process_one_work+0x84d/0x18a0
[ 6011.437622][   T73]      worker_thread+0x587/0xd30
[ 6011.437622][   T73]      kthread+0x28a/0x350
[ 6011.437622][   T73]      ret_from_fork+0x31/0x70
[ 6011.437622][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6011.437622][   T73] 
[ 6011.439576][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6011.439576][   T73]      netdev_get_by_index+0x5e/0x80
[ 6011.439576][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6011.439576][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6011.439576][   T73]      ip6_route_add+0x1c/0x140
[ 6011.439576][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6011.439576][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6011.439576][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6011.439576][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6011.439576][   T73]      netlink_rcv_skb+0x130/0x360
[ 6011.439576][   T73]      netlink_unicast+0x449/0x710
[ 6011.439576][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6011.439576][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6011.439576][   T73]      ___sys_sendmsg+0xee/0x170
[ 6011.439576][   T73]      __sys_sendmsg+0xcd/0x170
[ 6011.439576][   T73]      do_syscall_64+0xc6/0x1e0
[ 6011.439576][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6011.439576][   T73] 
[ 6011.441619][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6011.441619][   T73]      netdev_get_by_index+0x5e/0x80
[ 6011.441619][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6011.441619][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6011.441619][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6011.441619][   T73]      ipv6_add_addr+0x411/0x2000
[ 6011.441619][   T73]      inet6_addr_add+0x30e/0xa40
[ 6011.441619][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6011.441619][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6011.441619][   T73]      netlink_rcv_skb+0x130/0x360
[ 6011.441619][   T73]      netlink_unicast+0x449/0x710
[ 6011.441619][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6011.441619][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6011.441619][   T73]      ___sys_sendmsg+0xee/0x170
[ 6011.441619][   T73]      __sys_sendmsg+0xcd/0x170
[ 6011.441619][   T73]      do_syscall_64+0xc6/0x1e0
[ 6011.441619][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6011.441619][   T73] 
[ 6011.443671][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6011.443671][   T73]      netdev_get_by_index+0x5e/0x80
[ 6011.443671][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6011.443671][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6011.443671][   T73]      ip6_route_add+0x1c/0x140
[ 6011.443671][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6011.443671][   T73]      addrconf_add_dev+0xe2/0x170
[ 6011.443671][   T73]      inet6_addr_add+0x12f/0xa40
[ 6011.443671][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6011.443671][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6011.443671][   T73]      netlink_rcv_skb+0x130/0x360
[ 6011.443671][   T73]      netlink_unicast+0x449/0x710
[ 6011.443671][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6011.443671][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6011.443671][   T73]      ___sys_sendmsg+0xee/0x170
[ 6011.443671][   T73]      __sys_sendmsg+0xcd/0x170
[ 6011.443671][   T73]      do_syscall_64+0xc6/0x1e0
[ 6011.443671][   T73] 
[ 6011.445666][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6011.445666][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6011.445666][   T73]      ipv6_find_idev+0x102/0x170
[ 6011.445666][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6011.445666][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6011.445666][   T73]      netlink_rcv_skb+0x130/0x360
[ 6011.445666][   T73]      netlink_unicast+0x449/0x710
[ 6011.445666][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6011.445666][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6011.445666][   T73]      ___sys_sendmsg+0xee/0x170
[ 6011.445666][   T73]      __sys_sendmsg+0xcd/0x170
[ 6011.445666][   T73]      do_syscall_64+0xc6/0x1e0
[ 6011.445666][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6011.445666][   T73] 
[ 6011.447255][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6011.447255][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6011.447255][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6011.447255][   T73]      ipv6_find_idev+0x102/0x170
[ 6011.447255][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6011.447255][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6011.447255][   T73]      netlink_rcv_skb+0x130/0x360
[ 6011.447255][   T73]      netlink_unicast+0x449/0x710
[ 6011.447255][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6011.447255][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6011.447255][   T73]      ___sys_sendmsg+0xee/0x170
[ 6011.447255][   T73]      __sys_sendmsg+0xcd/0x170
[ 6011.447255][   T73]      do_syscall_64+0xc6/0x1e0
[ 6011.447255][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6011.447255][   T73] 
[ 6011.448990][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6011.449263][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6011.449263][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6011.449263][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6011.449263][   T73]      fib6_nh_init+0xa22/0x1580
[ 6011.449263][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6011.449263][   T73]      ip6_route_add+0x1c/0x140
[ 6011.449263][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6011.449263][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6011.449263][   T73]      netlink_rcv_skb+0x130/0x360
[ 6011.449263][   T73]      netlink_unicast+0x449/0x710
[ 6011.449263][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6011.449263][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6011.449263][   T73]      ___sys_sendmsg+0xee/0x170
[ 6011.449263][   T73]      __sys_sendmsg+0xcd/0x170
[ 6011.449263][   T73]      do_syscall_64+0xc6/0x1e0
[ 6011.449263][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6011.449263][   T73] 
[ 6011.451367][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6011.451367][   T73]      dst_init+0x84/0x4a0
[ 6011.451367][   T73]      dst_alloc+0x97/0x150
[ 6011.451367][   T73]      ip6_dst_alloc+0x23/0x90
[ 6011.451367][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6011.451367][   T73]      ip6_pol_route+0x56f/0x840
[ 6011.451367][   T73]      fib6_rule_lookup+0x456/0x630
[ 6011.451367][   T73]      ip6_route_input+0x59c/0xa50
[ 6011.451367][   T73]      ipv6_rcv+0x397/0x810
[ 6011.451367][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6011.451367][   T73]      process_backlog+0x101/0x620
[ 6011.451367][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6011.451367][   T73]      net_rx_action+0x495/0xbe0
[ 6011.451367][   T73]      __do_softirq+0x1b5/0x7f6
[ 6011.451367][   T73] 
[ 6011.453299][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6011.453299][   T73]      netdev_get_by_index+0x5e/0x80
[ 6011.453299][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6011.453299][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6011.453299][   T73]      ip6_route_add+0x1c/0x140
[ 6011.453299][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6011.453299][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6011.453299][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6011.453299][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6011.453299][   T73]      netlink_rcv_skb+0x130/0x360
[ 6011.453299][   T73]      netlink_unicast+0x449/0x710
[ 6011.453299][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6011.453299][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6011.453299][   T73]      ___sys_sendmsg+0xee/0x170
[ 6011.453299][   T73]      __sys_sendmsg+0xcd/0x170
[ 6011.453299][   T73]      do_syscall_64+0xc6/0x1e0
[ 6011.453299][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6011.453299][   T73] 
[ 6011.455588][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6011.455588][   T73]      netdev_get_by_index+0x5e/0x80
[ 6011.455588][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6011.455588][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6011.455588][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6011.455588][   T73]      ipv6_add_addr+0x411/0x2000
[ 6011.455588][   T73]      inet6_addr_add+0x30e/0xa40
[ 6011.455588][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6011.455588][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6011.455588][   T73]      netlink_rcv_skb+0x130/0x360
[ 6011.455588][   T73]      netlink_unicast+0x449/0x710
[ 6011.455588][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6011.455588][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6011.455588][   T73]      ___sys_sendmsg+0xee/0x170
[ 6011.455588][   T73]      __sys_sendmsg+0xcd/0x170
[ 6011.455588][   T73]      do_syscall_64+0xc6/0x1e0
[ 6011.455588][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6011.455588][   T73] 
[ 6011.457887][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6011.457887][   T73]      netdev_get_by_index+0x5e/0x80
[ 6011.457887][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6011.457887][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6011.457887][   T73]      ip6_route_add+0x1c/0x140
[ 6011.457887][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6011.457887][   T73]      addrconf_add_dev+0xe2/0x170
[ 6011.457887][   T73]      inet6_addr_add+0x12f/0xa40
[ 6011.457887][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6011.457887][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6011.457887][   T73]      netlink_rcv_skb+0x130/0x360
[ 6011.457887][   T73]      netlink_unicast+0x449/0x710
[ 6011.457887][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6011.457887][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6011.457887][   T73]      ___sys_sendmsg+0xee/0x170
[ 6011.457887][   T73]      __sys_sendmsg+0xcd/0x170
[ 6011.457887][   T73]      do_syscall_64+0xc6/0x1e0
[ 6011.457887][   T73] 
[ 6011.460129][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6011.460129][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6011.460129][   T73]      ipv6_find_idev+0x102/0x170
[ 6011.460129][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6011.460129][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6011.460129][   T73]      netlink_rcv_skb+0x130/0x360
[ 6011.460129][   T73]      netlink_unicast+0x449/0x710
[ 6011.460129][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6011.460129][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6011.460129][   T73]      ___sys_sendmsg+0xee/0x170
[ 6011.460129][   T73]      __sys_sendmsg+0xcd/0x170
[ 6011.460129][   T73]      do_syscall_64+0xc6/0x1e0
[ 6011.460129][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6011.460129][   T73] 
[ 6011.461952][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6011.461952][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6011.461952][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6011.461952][   T73]      ipv6_find_idev+0x102/0x170
[ 6011.461952][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6011.461952][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6011.461952][   T73]      netlink_rcv_skb+0x130/0x360
[ 6011.461952][   T73]      netlink_unicast+0x449/0x710
[ 6011.461952][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6011.461952][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6011.461952][   T73]      ___sys_sendmsg+0xee/0x170
[ 6011.461952][   T73]      __sys_sendmsg+0xcd/0x170
[ 6011.461952][   T73]      do_syscall_64+0xc6/0x1e0
[ 6011.461952][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6011.461952][   T73] 
[ 6011.463863][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6011.464152][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6011.464152][   T73]      netdev_get_by_index+0x5e/0x80
[ 6011.464152][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6011.464152][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6011.464152][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6011.464152][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6011.464152][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6011.464152][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6011.464152][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6011.464152][   T73]      addrconf_dad_begin+0x310/0x670
[ 6011.464152][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6011.464152][   T73]      process_one_work+0x84d/0x18a0
[ 6011.464152][   T73]      worker_thread+0x587/0xd30
[ 6011.464152][   T73]      kthread+0x28a/0x350
[ 6011.464152][   T73]      ret_from_fork+0x31/0x70
[ 6011.464152][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6011.464152][   T73] 
[ 6011.466347][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6011.466347][   T73]      netdev_get_by_index+0x5e/0x80
[ 6011.466347][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6011.466347][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6011.466347][   T73]      ip6_route_add+0x1c/0x140
[ 6011.466347][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6011.466347][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6011.466347][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6011.466347][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6011.466347][   T73]      netlink_rcv_skb+0x130/0x360
[ 6011.466347][   T73]      netlink_unicast+0x449/0x710
[ 6011.466347][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6011.466347][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6011.466347][   T73]      ___sys_sendmsg+0xee/0x170
[ 6011.466347][   T73]      __sys_sendmsg+0xcd/0x170
[ 6011.466347][   T73]      do_syscall_64+0xc6/0x1e0
[ 6011.466347][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6011.466347][   T73] 
[ 6011.468654][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6011.468654][   T73]      netdev_get_by_index+0x5e/0x80
[ 6011.468654][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6011.468654][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6011.468654][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6011.468654][   T73]      ipv6_add_addr+0x411/0x2000
[ 6011.468654][   T73]      inet6_addr_add+0x30e/0xa40
[ 6011.468654][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6011.468654][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6011.468654][   T73]      netlink_rcv_skb+0x130/0x360
[ 6011.468654][   T73]      netlink_unicast+0x449/0x710
[ 6011.468654][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6011.468654][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6011.468654][   T73]      ___sys_sendmsg+0xee/0x170
[ 6011.468654][   T73]      __sys_sendmsg+0xcd/0x170
[ 6011.468654][   T73]      do_syscall_64+0xc6/0x1e0
[ 6011.468654][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6011.468654][   T73] 
[ 6011.471001][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6011.471001][   T73]      netdev_get_by_index+0x5e/0x80
[ 6011.471001][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6011.471001][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6011.471001][   T73]      ip6_route_add+0x1c/0x140
[ 6011.471001][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6011.471001][   T73]      addrconf_add_dev+0xe2/0x170
[ 6011.471001][   T73]      inet6_addr_add+0x12f/0xa40
[ 6011.471001][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6011.471001][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6011.471001][   T73]      netlink_rcv_skb+0x130/0x360
[ 6011.471001][   T73]      netlink_unicast+0x449/0x710
[ 6011.471001][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6011.471001][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6011.471001][   T73]      ___sys_sendmsg+0xee/0x170
[ 6011.471001][   T73]      __sys_sendmsg+0xcd/0x170
[ 6011.471001][   T73]      do_syscall_64+0xc6/0x1e0
[ 6011.471001][   T73] 
[ 6011.473181][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6011.473181][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6011.473181][   T73]      ipv6_find_idev+0x102/0x170
[ 6011.473181][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6011.473181][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6011.473181][   T73]      netlink_rcv_skb+0x130/0x360
[ 6011.473181][   T73]      netlink_unicast+0x449/0x710
[ 6011.473181][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6011.473181][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6011.473181][   T73]      ___sys_sendmsg+0xee/0x170
[ 6011.473181][   T73]      __sys_sendmsg+0xcd/0x170
[ 6011.473181][   T73]      do_syscall_64+0xc6/0x1e0
[ 6011.473181][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6011.473181][   T73] 
[ 6011.474941][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6011.474941][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6011.474941][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6011.474941][   T73]      ipv6_find_idev+0x102/0x170
[ 6011.474941][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6011.474941][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6011.474941][   T73]      netlink_rcv_skb+0x130/0x360
[ 6011.474941][   T73]      netlink_unicast+0x449/0x710
[ 6011.474941][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6011.474941][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6011.474941][   T73]      ___sys_sendmsg+0xee/0x170
[ 6011.474941][   T73]      __sys_sendmsg+0xcd/0x170
[ 6011.474941][   T73]      do_syscall_64+0xc6/0x1e0
[ 6011.474941][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6011.474941][   T73] 
[ 6021.719751][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6021.720239][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6021.720239][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6021.720239][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6021.720239][   T73]      fib6_nh_init+0xa22/0x1580
[ 6021.720239][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6021.720239][   T73]      ip6_route_add+0x1c/0x140
[ 6021.720239][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6021.720239][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6021.720239][   T73]      netlink_rcv_skb+0x130/0x360
[ 6021.720239][   T73]      netlink_unicast+0x449/0x710
[ 6021.720239][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6021.720239][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6021.720239][   T73]      ___sys_sendmsg+0xee/0x170
[ 6021.720239][   T73]      __sys_sendmsg+0xcd/0x170
[ 6021.720239][   T73]      do_syscall_64+0xc6/0x1e0
[ 6021.720239][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6021.720239][   T73] 
[ 6021.722192][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6021.722192][   T73]      dst_init+0x84/0x4a0
[ 6021.722192][   T73]      dst_alloc+0x97/0x150
[ 6021.722192][   T73]      ip6_dst_alloc+0x23/0x90
[ 6021.722192][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6021.722192][   T73]      ip6_pol_route+0x56f/0x840
[ 6021.722192][   T73]      fib6_rule_lookup+0x456/0x630
[ 6021.722192][   T73]      ip6_route_input+0x59c/0xa50
[ 6021.722192][   T73]      ipv6_rcv+0x397/0x810
[ 6021.722192][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6021.722192][   T73]      process_backlog+0x101/0x620
[ 6021.722192][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6021.722192][   T73]      net_rx_action+0x495/0xbe0
[ 6021.722192][   T73]      __do_softirq+0x1b5/0x7f6
[ 6021.722192][   T73] 
[ 6021.723878][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6021.723878][   T73]      netdev_get_by_index+0x5e/0x80
[ 6021.723878][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6021.723878][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6021.723878][   T73]      ip6_route_add+0x1c/0x140
[ 6021.723878][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6021.723878][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6021.723878][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6021.723878][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6021.723878][   T73]      netlink_rcv_skb+0x130/0x360
[ 6021.723878][   T73]      netlink_unicast+0x449/0x710
[ 6021.723878][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6021.723878][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6021.723878][   T73]      ___sys_sendmsg+0xee/0x170
[ 6021.723878][   T73]      __sys_sendmsg+0xcd/0x170
[ 6021.723878][   T73]      do_syscall_64+0xc6/0x1e0
[ 6021.723878][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6021.723878][   T73] 
[ 6021.725935][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6021.725935][   T73]      netdev_get_by_index+0x5e/0x80
[ 6021.725935][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6021.725935][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6021.725935][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6021.725935][   T73]      ipv6_add_addr+0x411/0x2000
[ 6021.725935][   T73]      inet6_addr_add+0x30e/0xa40
[ 6021.725935][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6021.725935][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6021.725935][   T73]      netlink_rcv_skb+0x130/0x360
[ 6021.725935][   T73]      netlink_unicast+0x449/0x710
[ 6021.725935][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6021.725935][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6021.725935][   T73]      ___sys_sendmsg+0xee/0x170
[ 6021.725935][   T73]      __sys_sendmsg+0xcd/0x170
[ 6021.725935][   T73]      do_syscall_64+0xc6/0x1e0
[ 6021.725935][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6021.725935][   T73] 
[ 6021.727988][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6021.727988][   T73]      netdev_get_by_index+0x5e/0x80
[ 6021.727988][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6021.727988][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6021.727988][   T73]      ip6_route_add+0x1c/0x140
[ 6021.727988][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6021.727988][   T73]      addrconf_add_dev+0xe2/0x170
[ 6021.727988][   T73]      inet6_addr_add+0x12f/0xa40
[ 6021.727988][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6021.727988][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6021.727988][   T73]      netlink_rcv_skb+0x130/0x360
[ 6021.727988][   T73]      netlink_unicast+0x449/0x710
[ 6021.727988][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6021.727988][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6021.727988][   T73]      ___sys_sendmsg+0xee/0x170
[ 6021.727988][   T73]      __sys_sendmsg+0xcd/0x170
[ 6021.727988][   T73]      do_syscall_64+0xc6/0x1e0
[ 6021.727988][   T73] 
[ 6021.729994][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6021.729994][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6021.729994][   T73]      ipv6_find_idev+0x102/0x170
[ 6021.729994][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6021.729994][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6021.729994][   T73]      netlink_rcv_skb+0x130/0x360
[ 6021.729994][   T73]      netlink_unicast+0x449/0x710
[ 6021.729994][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6021.729994][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6021.729994][   T73]      ___sys_sendmsg+0xee/0x170
[ 6021.729994][   T73]      __sys_sendmsg+0xcd/0x170
[ 6021.729994][   T73]      do_syscall_64+0xc6/0x1e0
[ 6021.729994][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6021.729994][   T73] 
[ 6021.731569][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6021.731569][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6021.731569][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6021.731569][   T73]      ipv6_find_idev+0x102/0x170
[ 6021.731569][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6021.731569][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6021.731569][   T73]      netlink_rcv_skb+0x130/0x360
[ 6021.731569][   T73]      netlink_unicast+0x449/0x710
[ 6021.731569][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6021.731569][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6021.731569][   T73]      ___sys_sendmsg+0xee/0x170
[ 6021.731569][   T73]      __sys_sendmsg+0xcd/0x170
[ 6021.731569][   T73]      do_syscall_64+0xc6/0x1e0
[ 6021.731569][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6021.731569][   T73] 
[ 6021.733299][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6021.733583][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6021.733583][   T73]      netdev_get_by_index+0x5e/0x80
[ 6021.733583][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6021.733583][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6021.733583][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6021.733583][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6021.733583][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6021.733583][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6021.733583][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6021.733583][   T73]      addrconf_dad_begin+0x310/0x670
[ 6021.733583][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6021.733583][   T73]      process_one_work+0x84d/0x18a0
[ 6021.733583][   T73]      worker_thread+0x587/0xd30
[ 6021.733583][   T73]      kthread+0x28a/0x350
[ 6021.733583][   T73]      ret_from_fork+0x31/0x70
[ 6021.733583][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6021.733583][   T73] 
[ 6021.735535][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6021.735535][   T73]      netdev_get_by_index+0x5e/0x80
[ 6021.735535][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6021.735535][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6021.735535][   T73]      ip6_route_add+0x1c/0x140
[ 6021.735535][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6021.735535][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6021.735535][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6021.735535][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6021.735535][   T73]      netlink_rcv_skb+0x130/0x360
[ 6021.735535][   T73]      netlink_unicast+0x449/0x710
[ 6021.735535][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6021.735535][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6021.735535][   T73]      ___sys_sendmsg+0xee/0x170
[ 6021.735535][   T73]      __sys_sendmsg+0xcd/0x170
[ 6021.735535][   T73]      do_syscall_64+0xc6/0x1e0
[ 6021.735535][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6021.735535][   T73] 
[ 6021.737583][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6021.737583][   T73]      netdev_get_by_index+0x5e/0x80
[ 6021.737583][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6021.737583][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6021.737583][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6021.737583][   T73]      ipv6_add_addr+0x411/0x2000
[ 6021.737583][   T73]      inet6_addr_add+0x30e/0xa40
[ 6021.737583][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6021.737583][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6021.737583][   T73]      netlink_rcv_skb+0x130/0x360
[ 6021.737583][   T73]      netlink_unicast+0x449/0x710
[ 6021.737583][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6021.737583][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6021.737583][   T73]      ___sys_sendmsg+0xee/0x170
[ 6021.737583][   T73]      __sys_sendmsg+0xcd/0x170
[ 6021.737583][   T73]      do_syscall_64+0xc6/0x1e0
[ 6021.737583][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6021.737583][   T73] 
[ 6021.739617][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6021.739617][   T73]      netdev_get_by_index+0x5e/0x80
[ 6021.739617][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6021.739617][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6021.739617][   T73]      ip6_route_add+0x1c/0x140
[ 6021.739617][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6021.739617][   T73]      addrconf_add_dev+0xe2/0x170
[ 6021.739617][   T73]      inet6_addr_add+0x12f/0xa40
[ 6021.739617][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6021.739617][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6021.739617][   T73]      netlink_rcv_skb+0x130/0x360
[ 6021.739617][   T73]      netlink_unicast+0x449/0x710
[ 6021.739617][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6021.739617][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6021.739617][   T73]      ___sys_sendmsg+0xee/0x170
[ 6021.739617][   T73]      __sys_sendmsg+0xcd/0x170
[ 6021.739617][   T73]      do_syscall_64+0xc6/0x1e0
[ 6021.739617][   T73] 
[ 6021.741616][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6021.741616][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6021.741616][   T73]      ipv6_find_idev+0x102/0x170
[ 6021.741616][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6021.741616][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6021.741616][   T73]      netlink_rcv_skb+0x130/0x360
[ 6021.741616][   T73]      netlink_unicast+0x449/0x710
[ 6021.741616][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6021.741616][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6021.741616][   T73]      ___sys_sendmsg+0xee/0x170
[ 6021.741616][   T73]      __sys_sendmsg+0xcd/0x170
[ 6021.741616][   T73]      do_syscall_64+0xc6/0x1e0
[ 6021.741616][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6021.741616][   T73] 
[ 6021.743182][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6021.743182][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6021.743182][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6021.743182][   T73]      ipv6_find_idev+0x102/0x170
[ 6021.743182][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6021.743182][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6021.743182][   T73]      netlink_rcv_skb+0x130/0x360
[ 6021.743182][   T73]      netlink_unicast+0x449/0x710
[ 6021.743182][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6021.743182][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6021.743182][   T73]      ___sys_sendmsg+0xee/0x170
[ 6021.743182][   T73]      __sys_sendmsg+0xcd/0x170
[ 6021.743182][   T73]      do_syscall_64+0xc6/0x1e0
[ 6021.743182][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6021.743182][   T73] 
[ 6021.744901][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6021.745171][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6021.745171][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6021.745171][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6021.745171][   T73]      fib6_nh_init+0xa22/0x1580
[ 6021.745171][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6021.745171][   T73]      ip6_route_add+0x1c/0x140
[ 6021.745171][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6021.745171][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6021.745171][   T73]      netlink_rcv_skb+0x130/0x360
[ 6021.745171][   T73]      netlink_unicast+0x449/0x710
[ 6021.745171][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6021.745171][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6021.745171][   T73]      ___sys_sendmsg+0xee/0x170
[ 6021.745171][   T73]      __sys_sendmsg+0xcd/0x170
[ 6021.745171][   T73]      do_syscall_64+0xc6/0x1e0
[ 6021.745171][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6021.745171][   T73] 
[ 6021.747280][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6021.747280][   T73]      dst_init+0x84/0x4a0
[ 6021.747280][   T73]      dst_alloc+0x97/0x150
[ 6021.747280][   T73]      ip6_dst_alloc+0x23/0x90
[ 6021.747280][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6021.747280][   T73]      ip6_pol_route+0x56f/0x840
[ 6021.747280][   T73]      fib6_rule_lookup+0x456/0x630
[ 6021.747280][   T73]      ip6_route_input+0x59c/0xa50
[ 6021.747280][   T73]      ipv6_rcv+0x397/0x810
[ 6021.747280][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6021.747280][   T73]      process_backlog+0x101/0x620
[ 6021.747280][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6021.747280][   T73]      net_rx_action+0x495/0xbe0
[ 6021.747280][   T73]      __do_softirq+0x1b5/0x7f6
[ 6021.747280][   T73] 
[ 6021.749187][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6021.749187][   T73]      netdev_get_by_index+0x5e/0x80
[ 6021.749187][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6021.749187][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6021.749187][   T73]      ip6_route_add+0x1c/0x140
[ 6021.749187][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6021.749187][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6021.749187][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6021.749187][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6021.749187][   T73]      netlink_rcv_skb+0x130/0x360
[ 6021.749187][   T73]      netlink_unicast+0x449/0x710
[ 6021.749187][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6021.749187][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6021.749187][   T73]      ___sys_sendmsg+0xee/0x170
[ 6021.749187][   T73]      __sys_sendmsg+0xcd/0x170
[ 6021.749187][   T73]      do_syscall_64+0xc6/0x1e0
[ 6021.749187][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6021.749187][   T73] 
[ 6021.751472][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6021.751472][   T73]      netdev_get_by_index+0x5e/0x80
[ 6021.751472][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6021.751472][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6021.751472][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6021.751472][   T73]      ipv6_add_addr+0x411/0x2000
[ 6021.751472][   T73]      inet6_addr_add+0x30e/0xa40
[ 6021.751472][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6021.751472][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6021.751472][   T73]      netlink_rcv_skb+0x130/0x360
[ 6021.751472][   T73]      netlink_unicast+0x449/0x710
[ 6021.751472][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6021.751472][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6021.751472][   T73]      ___sys_sendmsg+0xee/0x170
[ 6021.751472][   T73]      __sys_sendmsg+0xcd/0x170
[ 6021.751472][   T73]      do_syscall_64+0xc6/0x1e0
[ 6021.751472][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6021.751472][   T73] 
[ 6021.753767][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6021.753767][   T73]      netdev_get_by_index+0x5e/0x80
[ 6021.753767][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6021.753767][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6021.753767][   T73]      ip6_route_add+0x1c/0x140
[ 6021.753767][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6021.753767][   T73]      addrconf_add_dev+0xe2/0x170
[ 6021.753767][   T73]      inet6_addr_add+0x12f/0xa40
[ 6021.753767][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6021.753767][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6021.753767][   T73]      netlink_rcv_skb+0x130/0x360
[ 6021.753767][   T73]      netlink_unicast+0x449/0x710
[ 6021.753767][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6021.753767][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6021.753767][   T73]      ___sys_sendmsg+0xee/0x170
[ 6021.753767][   T73]      __sys_sendmsg+0xcd/0x170
[ 6021.753767][   T73]      do_syscall_64+0xc6/0x1e0
[ 6021.753767][   T73] 
[ 6021.756011][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6021.756011][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6021.756011][   T73]      ipv6_find_idev+0x102/0x170
[ 6021.756011][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6021.756011][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6021.756011][   T73]      netlink_rcv_skb+0x130/0x360
[ 6021.756011][   T73]      netlink_unicast+0x449/0x710
[ 6021.756011][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6021.756011][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6021.756011][   T73]      ___sys_sendmsg+0xee/0x170
[ 6021.756011][   T73]      __sys_sendmsg+0xcd/0x170
[ 6021.756011][   T73]      do_syscall_64+0xc6/0x1e0
[ 6021.756011][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6021.756011][   T73] 
[ 6021.757837][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6021.757837][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6021.757837][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6021.757837][   T73]      ipv6_find_idev+0x102/0x170
[ 6021.757837][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6021.757837][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6021.757837][   T73]      netlink_rcv_skb+0x130/0x360
[ 6021.757837][   T73]      netlink_unicast+0x449/0x710
[ 6021.757837][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6021.757837][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6021.757837][   T73]      ___sys_sendmsg+0xee/0x170
[ 6021.757837][   T73]      __sys_sendmsg+0xcd/0x170
[ 6021.757837][   T73]      do_syscall_64+0xc6/0x1e0
[ 6021.757837][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6021.757837][   T73] 
[ 6021.759740][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6021.760011][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6021.760011][   T73]      netdev_get_by_index+0x5e/0x80
[ 6021.760011][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6021.760011][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6021.760011][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6021.760011][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6021.760011][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6021.760011][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6021.760011][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6021.760011][   T73]      addrconf_dad_begin+0x310/0x670
[ 6021.760011][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6021.760011][   T73]      process_one_work+0x84d/0x18a0
[ 6021.760011][   T73]      worker_thread+0x587/0xd30
[ 6021.760011][   T73]      kthread+0x28a/0x350
[ 6021.760011][   T73]      ret_from_fork+0x31/0x70
[ 6021.760011][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6021.760011][   T73] 
[ 6021.762204][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6021.762204][   T73]      netdev_get_by_index+0x5e/0x80
[ 6021.762204][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6021.762204][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6021.762204][   T73]      ip6_route_add+0x1c/0x140
[ 6021.762204][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6021.762204][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6021.762204][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6021.762204][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6021.762204][   T73]      netlink_rcv_skb+0x130/0x360
[ 6021.762204][   T73]      netlink_unicast+0x449/0x710
[ 6021.762204][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6021.762204][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6021.762204][   T73]      ___sys_sendmsg+0xee/0x170
[ 6021.762204][   T73]      __sys_sendmsg+0xcd/0x170
[ 6021.762204][   T73]      do_syscall_64+0xc6/0x1e0
[ 6021.762204][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6021.762204][   T73] 
[ 6021.764482][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6021.764482][   T73]      netdev_get_by_index+0x5e/0x80
[ 6021.764482][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6021.764482][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6021.764482][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6021.764482][   T73]      ipv6_add_addr+0x411/0x2000
[ 6021.764482][   T73]      inet6_addr_add+0x30e/0xa40
[ 6021.764482][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6021.764482][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6021.764482][   T73]      netlink_rcv_skb+0x130/0x360
[ 6021.764482][   T73]      netlink_unicast+0x449/0x710
[ 6021.764482][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6021.764482][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6021.764482][   T73]      ___sys_sendmsg+0xee/0x170
[ 6021.764482][   T73]      __sys_sendmsg+0xcd/0x170
[ 6021.764482][   T73]      do_syscall_64+0xc6/0x1e0
[ 6021.764482][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6021.764482][   T73] 
[ 6021.766832][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6021.766832][   T73]      netdev_get_by_index+0x5e/0x80
[ 6021.766832][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6021.766832][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6021.766832][   T73]      ip6_route_add+0x1c/0x140
[ 6021.766832][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6021.766832][   T73]      addrconf_add_dev+0xe2/0x170
[ 6021.766832][   T73]      inet6_addr_add+0x12f/0xa40
[ 6021.766832][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6021.766832][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6021.766832][   T73]      netlink_rcv_skb+0x130/0x360
[ 6021.766832][   T73]      netlink_unicast+0x449/0x710
[ 6021.766832][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6021.766832][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6021.766832][   T73]      ___sys_sendmsg+0xee/0x170
[ 6021.766832][   T73]      __sys_sendmsg+0xcd/0x170
[ 6021.766832][   T73]      do_syscall_64+0xc6/0x1e0
[ 6021.766832][   T73] 
[ 6021.769012][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6021.769012][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6021.769012][   T73]      ipv6_find_idev+0x102/0x170
[ 6021.769012][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6021.769012][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6021.769012][   T73]      netlink_rcv_skb+0x130/0x360
[ 6021.769012][   T73]      netlink_unicast+0x449/0x710
[ 6021.769012][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6021.769012][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6021.769012][   T73]      ___sys_sendmsg+0xee/0x170
[ 6021.769012][   T73]      __sys_sendmsg+0xcd/0x170
[ 6021.769012][   T73]      do_syscall_64+0xc6/0x1e0
[ 6021.769012][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6021.769012][   T73] 
[ 6021.770761][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6021.770761][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6021.770761][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6021.770761][   T73]      ipv6_find_idev+0x102/0x170
[ 6021.770761][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6021.770761][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6021.770761][   T73]      netlink_rcv_skb+0x130/0x360
[ 6021.770761][   T73]      netlink_unicast+0x449/0x710
[ 6021.770761][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6021.770761][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6021.770761][   T73]      ___sys_sendmsg+0xee/0x170
[ 6021.770761][   T73]      __sys_sendmsg+0xcd/0x170
[ 6021.770761][   T73]      do_syscall_64+0xc6/0x1e0
[ 6021.770761][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6021.770761][   T73] 
[ 6032.015764][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6032.016254][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6032.016254][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6032.016254][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6032.016254][   T73]      fib6_nh_init+0xa22/0x1580
[ 6032.016254][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6032.016254][   T73]      ip6_route_add+0x1c/0x140
[ 6032.016254][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6032.016254][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6032.016254][   T73]      netlink_rcv_skb+0x130/0x360
[ 6032.016254][   T73]      netlink_unicast+0x449/0x710
[ 6032.016254][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6032.016254][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6032.016254][   T73]      ___sys_sendmsg+0xee/0x170
[ 6032.016254][   T73]      __sys_sendmsg+0xcd/0x170
[ 6032.016254][   T73]      do_syscall_64+0xc6/0x1e0
[ 6032.016254][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6032.016254][   T73] 
[ 6032.018200][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6032.018200][   T73]      dst_init+0x84/0x4a0
[ 6032.018200][   T73]      dst_alloc+0x97/0x150
[ 6032.018200][   T73]      ip6_dst_alloc+0x23/0x90
[ 6032.018200][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6032.018200][   T73]      ip6_pol_route+0x56f/0x840
[ 6032.018200][   T73]      fib6_rule_lookup+0x456/0x630
[ 6032.018200][   T73]      ip6_route_input+0x59c/0xa50
[ 6032.018200][   T73]      ipv6_rcv+0x397/0x810
[ 6032.018200][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6032.018200][   T73]      process_backlog+0x101/0x620
[ 6032.018200][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6032.018200][   T73]      net_rx_action+0x495/0xbe0
[ 6032.018200][   T73]      __do_softirq+0x1b5/0x7f6
[ 6032.018200][   T73] 
[ 6032.019886][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6032.019886][   T73]      netdev_get_by_index+0x5e/0x80
[ 6032.019886][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6032.019886][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6032.019886][   T73]      ip6_route_add+0x1c/0x140
[ 6032.019886][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6032.019886][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6032.019886][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6032.019886][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6032.019886][   T73]      netlink_rcv_skb+0x130/0x360
[ 6032.019886][   T73]      netlink_unicast+0x449/0x710
[ 6032.019886][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6032.019886][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6032.019886][   T73]      ___sys_sendmsg+0xee/0x170
[ 6032.019886][   T73]      __sys_sendmsg+0xcd/0x170
[ 6032.019886][   T73]      do_syscall_64+0xc6/0x1e0
[ 6032.019886][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6032.019886][   T73] 
[ 6032.021956][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6032.021956][   T73]      netdev_get_by_index+0x5e/0x80
[ 6032.021956][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6032.021956][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6032.021956][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6032.021956][   T73]      ipv6_add_addr+0x411/0x2000
[ 6032.021956][   T73]      inet6_addr_add+0x30e/0xa40
[ 6032.021956][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6032.021956][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6032.021956][   T73]      netlink_rcv_skb+0x130/0x360
[ 6032.021956][   T73]      netlink_unicast+0x449/0x710
[ 6032.021956][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6032.021956][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6032.021956][   T73]      ___sys_sendmsg+0xee/0x170
[ 6032.021956][   T73]      __sys_sendmsg+0xcd/0x170
[ 6032.021956][   T73]      do_syscall_64+0xc6/0x1e0
[ 6032.021956][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6032.021956][   T73] 
[ 6032.024006][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6032.024006][   T73]      netdev_get_by_index+0x5e/0x80
[ 6032.024006][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6032.024006][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6032.024006][   T73]      ip6_route_add+0x1c/0x140
[ 6032.024006][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6032.024006][   T73]      addrconf_add_dev+0xe2/0x170
[ 6032.024006][   T73]      inet6_addr_add+0x12f/0xa40
[ 6032.024006][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6032.024006][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6032.024006][   T73]      netlink_rcv_skb+0x130/0x360
[ 6032.024006][   T73]      netlink_unicast+0x449/0x710
[ 6032.024006][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6032.024006][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6032.024006][   T73]      ___sys_sendmsg+0xee/0x170
[ 6032.024006][   T73]      __sys_sendmsg+0xcd/0x170
[ 6032.024006][   T73]      do_syscall_64+0xc6/0x1e0
[ 6032.024006][   T73] 
[ 6032.026023][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6032.026023][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6032.026023][   T73]      ipv6_find_idev+0x102/0x170
[ 6032.026023][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6032.026023][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6032.026023][   T73]      netlink_rcv_skb+0x130/0x360
[ 6032.026023][   T73]      netlink_unicast+0x449/0x710
[ 6032.026023][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6032.026023][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6032.026023][   T73]      ___sys_sendmsg+0xee/0x170
[ 6032.026023][   T73]      __sys_sendmsg+0xcd/0x170
[ 6032.026023][   T73]      do_syscall_64+0xc6/0x1e0
[ 6032.026023][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6032.026023][   T73] 
[ 6032.027614][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6032.027614][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6032.027614][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6032.027614][   T73]      ipv6_find_idev+0x102/0x170
[ 6032.027614][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6032.027614][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6032.027614][   T73]      netlink_rcv_skb+0x130/0x360
[ 6032.027614][   T73]      netlink_unicast+0x449/0x710
[ 6032.027614][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6032.027614][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6032.027614][   T73]      ___sys_sendmsg+0xee/0x170
[ 6032.027614][   T73]      __sys_sendmsg+0xcd/0x170
[ 6032.027614][   T73]      do_syscall_64+0xc6/0x1e0
[ 6032.027614][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6032.027614][   T73] 
[ 6032.029351][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6032.029647][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6032.029647][   T73]      netdev_get_by_index+0x5e/0x80
[ 6032.029647][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6032.029647][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6032.029647][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6032.029647][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6032.029647][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6032.029647][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6032.029647][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6032.029647][   T73]      addrconf_dad_begin+0x310/0x670
[ 6032.029647][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6032.029647][   T73]      process_one_work+0x84d/0x18a0
[ 6032.029647][   T73]      worker_thread+0x587/0xd30
[ 6032.029647][   T73]      kthread+0x28a/0x350
[ 6032.029647][   T73]      ret_from_fork+0x31/0x70
[ 6032.029647][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6032.029647][   T73] 
[ 6032.031601][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6032.031601][   T73]      netdev_get_by_index+0x5e/0x80
[ 6032.031601][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6032.031601][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6032.031601][   T73]      ip6_route_add+0x1c/0x140
[ 6032.031601][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6032.031601][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6032.031601][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6032.031601][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6032.031601][   T73]      netlink_rcv_skb+0x130/0x360
[ 6032.031601][   T73]      netlink_unicast+0x449/0x710
[ 6032.031601][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6032.031601][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6032.031601][   T73]      ___sys_sendmsg+0xee/0x170
[ 6032.031601][   T73]      __sys_sendmsg+0xcd/0x170
[ 6032.031601][   T73]      do_syscall_64+0xc6/0x1e0
[ 6032.031601][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6032.031601][   T73] 
[ 6032.033659][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6032.033659][   T73]      netdev_get_by_index+0x5e/0x80
[ 6032.033659][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6032.033659][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6032.033659][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6032.033659][   T73]      ipv6_add_addr+0x411/0x2000
[ 6032.033659][   T73]      inet6_addr_add+0x30e/0xa40
[ 6032.033659][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6032.033659][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6032.033659][   T73]      netlink_rcv_skb+0x130/0x360
[ 6032.033659][   T73]      netlink_unicast+0x449/0x710
[ 6032.033659][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6032.033659][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6032.033659][   T73]      ___sys_sendmsg+0xee/0x170
[ 6032.033659][   T73]      __sys_sendmsg+0xcd/0x170
[ 6032.033659][   T73]      do_syscall_64+0xc6/0x1e0
[ 6032.033659][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6032.033659][   T73] 
[ 6032.035701][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6032.035701][   T73]      netdev_get_by_index+0x5e/0x80
[ 6032.035701][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6032.035701][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6032.035701][   T73]      ip6_route_add+0x1c/0x140
[ 6032.035701][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6032.035701][   T73]      addrconf_add_dev+0xe2/0x170
[ 6032.035701][   T73]      inet6_addr_add+0x12f/0xa40
[ 6032.035701][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6032.035701][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6032.035701][   T73]      netlink_rcv_skb+0x130/0x360
[ 6032.035701][   T73]      netlink_unicast+0x449/0x710
[ 6032.035701][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6032.035701][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6032.035701][   T73]      ___sys_sendmsg+0xee/0x170
[ 6032.035701][   T73]      __sys_sendmsg+0xcd/0x170
[ 6032.035701][   T73]      do_syscall_64+0xc6/0x1e0
[ 6032.035701][   T73] 
[ 6032.037729][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6032.037729][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6032.037729][   T73]      ipv6_find_idev+0x102/0x170
[ 6032.037729][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6032.037729][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6032.037729][   T73]      netlink_rcv_skb+0x130/0x360
[ 6032.037729][   T73]      netlink_unicast+0x449/0x710
[ 6032.037729][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6032.037729][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6032.037729][   T73]      ___sys_sendmsg+0xee/0x170
[ 6032.037729][   T73]      __sys_sendmsg+0xcd/0x170
[ 6032.037729][   T73]      do_syscall_64+0xc6/0x1e0
[ 6032.037729][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6032.037729][   T73] 
[ 6032.039310][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6032.039310][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6032.039310][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6032.039310][   T73]      ipv6_find_idev+0x102/0x170
[ 6032.039310][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6032.039310][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6032.039310][   T73]      netlink_rcv_skb+0x130/0x360
[ 6032.039310][   T73]      netlink_unicast+0x449/0x710
[ 6032.039310][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6032.039310][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6032.039310][   T73]      ___sys_sendmsg+0xee/0x170
[ 6032.039310][   T73]      __sys_sendmsg+0xcd/0x170
[ 6032.039310][   T73]      do_syscall_64+0xc6/0x1e0
[ 6032.039310][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6032.039310][   T73] 
[ 6032.041053][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6032.041359][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6032.041359][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6032.041359][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6032.041359][   T73]      fib6_nh_init+0xa22/0x1580
[ 6032.041359][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6032.041359][   T73]      ip6_route_add+0x1c/0x140
[ 6032.041359][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6032.041359][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6032.041359][   T73]      netlink_rcv_skb+0x130/0x360
[ 6032.041359][   T73]      netlink_unicast+0x449/0x710
[ 6032.041359][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6032.041359][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6032.041359][   T73]      ___sys_sendmsg+0xee/0x170
[ 6032.041359][   T73]      __sys_sendmsg+0xcd/0x170
[ 6032.041359][   T73]      do_syscall_64+0xc6/0x1e0
[ 6032.041359][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6032.041359][   T73] 
[ 6032.043455][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6032.043455][   T73]      dst_init+0x84/0x4a0
[ 6032.043455][   T73]      dst_alloc+0x97/0x150
[ 6032.043455][   T73]      ip6_dst_alloc+0x23/0x90
[ 6032.043455][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6032.043455][   T73]      ip6_pol_route+0x56f/0x840
[ 6032.043455][   T73]      fib6_rule_lookup+0x456/0x630
[ 6032.043455][   T73]      ip6_route_input+0x59c/0xa50
[ 6032.043455][   T73]      ipv6_rcv+0x397/0x810
[ 6032.043455][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6032.043455][   T73]      process_backlog+0x101/0x620
[ 6032.043455][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6032.043455][   T73]      net_rx_action+0x495/0xbe0
[ 6032.043455][   T73]      __do_softirq+0x1b5/0x7f6
[ 6032.043455][   T73] 
[ 6032.045278][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6032.045278][   T73]      netdev_get_by_index+0x5e/0x80
[ 6032.045278][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6032.045278][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6032.045278][   T73]      ip6_route_add+0x1c/0x140
[ 6032.045278][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6032.045278][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6032.045278][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6032.045278][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6032.045278][   T73]      netlink_rcv_skb+0x130/0x360
[ 6032.045278][   T73]      netlink_unicast+0x449/0x710
[ 6032.045278][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6032.045278][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6032.045278][   T73]      ___sys_sendmsg+0xee/0x170
[ 6032.045278][   T73]      __sys_sendmsg+0xcd/0x170
[ 6032.045278][   T73]      do_syscall_64+0xc6/0x1e0
[ 6032.045278][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6032.045278][   T73] 
[ 6032.047494][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6032.047494][   T73]      netdev_get_by_index+0x5e/0x80
[ 6032.047494][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6032.047494][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6032.047494][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6032.047494][   T73]      ipv6_add_addr+0x411/0x2000
[ 6032.047494][   T73]      inet6_addr_add+0x30e/0xa40
[ 6032.047494][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6032.047494][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6032.047494][   T73]      netlink_rcv_skb+0x130/0x360
[ 6032.047494][   T73]      netlink_unicast+0x449/0x710
[ 6032.047494][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6032.047494][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6032.047494][   T73]      ___sys_sendmsg+0xee/0x170
[ 6032.047494][   T73]      __sys_sendmsg+0xcd/0x170
[ 6032.047494][   T73]      do_syscall_64+0xc6/0x1e0
[ 6032.047494][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6032.047494][   T73] 
[ 6032.049684][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6032.049684][   T73]      netdev_get_by_index+0x5e/0x80
[ 6032.049684][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6032.049684][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6032.049684][   T73]      ip6_route_add+0x1c/0x140
[ 6032.049684][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6032.049684][   T73]      addrconf_add_dev+0xe2/0x170
[ 6032.049684][   T73]      inet6_addr_add+0x12f/0xa40
[ 6032.049684][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6032.049684][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6032.049684][   T73]      netlink_rcv_skb+0x130/0x360
[ 6032.049684][   T73]      netlink_unicast+0x449/0x710
[ 6032.049684][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6032.049684][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6032.049684][   T73]      ___sys_sendmsg+0xee/0x170
[ 6032.049684][   T73]      __sys_sendmsg+0xcd/0x170
[ 6032.049684][   T73]      do_syscall_64+0xc6/0x1e0
[ 6032.049684][   T73] 
[ 6032.051849][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6032.051849][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6032.051849][   T73]      ipv6_find_idev+0x102/0x170
[ 6032.051849][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6032.051849][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6032.051849][   T73]      netlink_rcv_skb+0x130/0x360
[ 6032.051849][   T73]      netlink_unicast+0x449/0x710
[ 6032.051849][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6032.051849][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6032.051849][   T73]      ___sys_sendmsg+0xee/0x170
[ 6032.051849][   T73]      __sys_sendmsg+0xcd/0x170
[ 6032.051849][   T73]      do_syscall_64+0xc6/0x1e0
[ 6032.051849][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6032.051849][   T73] 
[ 6032.053512][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6032.053512][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6032.053512][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6032.053512][   T73]      ipv6_find_idev+0x102/0x170
[ 6032.053512][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6032.053512][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6032.053512][   T73]      netlink_rcv_skb+0x130/0x360
[ 6032.053512][   T73]      netlink_unicast+0x449/0x710
[ 6032.053512][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6032.053512][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6032.053512][   T73]      ___sys_sendmsg+0xee/0x170
[ 6032.053512][   T73]      __sys_sendmsg+0xcd/0x170
[ 6032.053512][   T73]      do_syscall_64+0xc6/0x1e0
[ 6032.053512][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6032.053512][   T73] 
[ 6032.055390][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6032.055666][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6032.055666][   T73]      netdev_get_by_index+0x5e/0x80
[ 6032.055666][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6032.055666][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6032.055666][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6032.055666][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6032.055666][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6032.055666][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6032.055666][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6032.055666][   T73]      addrconf_dad_begin+0x310/0x670
[ 6032.055666][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6032.055666][   T73]      process_one_work+0x84d/0x18a0
[ 6032.055666][   T73]      worker_thread+0x587/0xd30
[ 6032.055666][   T73]      kthread+0x28a/0x350
[ 6032.055666][   T73]      ret_from_fork+0x31/0x70
[ 6032.055666][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6032.055666][   T73] 
[ 6032.057796][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6032.057796][   T73]      netdev_get_by_index+0x5e/0x80
[ 6032.057796][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6032.057796][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6032.057796][   T73]      ip6_route_add+0x1c/0x140
[ 6032.057796][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6032.057796][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6032.057796][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6032.057796][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6032.057796][   T73]      netlink_rcv_skb+0x130/0x360
[ 6032.057796][   T73]      netlink_unicast+0x449/0x710
[ 6032.057796][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6032.057796][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6032.057796][   T73]      ___sys_sendmsg+0xee/0x170
[ 6032.057796][   T73]      __sys_sendmsg+0xcd/0x170
[ 6032.057796][   T73]      do_syscall_64+0xc6/0x1e0
[ 6032.057796][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6032.057796][   T73] 
[ 6032.059986][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6032.059986][   T73]      netdev_get_by_index+0x5e/0x80
[ 6032.059986][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6032.059986][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6032.059986][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6032.059986][   T73]      ipv6_add_addr+0x411/0x2000
[ 6032.059986][   T73]      inet6_addr_add+0x30e/0xa40
[ 6032.059986][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6032.059986][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6032.059986][   T73]      netlink_rcv_skb+0x130/0x360
[ 6032.059986][   T73]      netlink_unicast+0x449/0x710
[ 6032.059986][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6032.059986][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6032.059986][   T73]      ___sys_sendmsg+0xee/0x170
[ 6032.059986][   T73]      __sys_sendmsg+0xcd/0x170
[ 6032.059986][   T73]      do_syscall_64+0xc6/0x1e0
[ 6032.059986][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6032.059986][   T73] 
[ 6032.062194][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6032.062194][   T73]      netdev_get_by_index+0x5e/0x80
[ 6032.062194][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6032.062194][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6032.062194][   T73]      ip6_route_add+0x1c/0x140
[ 6032.062194][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6032.062194][   T73]      addrconf_add_dev+0xe2/0x170
[ 6032.062194][   T73]      inet6_addr_add+0x12f/0xa40
[ 6032.062194][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6032.062194][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6032.062194][   T73]      netlink_rcv_skb+0x130/0x360
[ 6032.062194][   T73]      netlink_unicast+0x449/0x710
[ 6032.062194][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6032.062194][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6032.062194][   T73]      ___sys_sendmsg+0xee/0x170
[ 6032.062194][   T73]      __sys_sendmsg+0xcd/0x170
[ 6032.062194][   T73]      do_syscall_64+0xc6/0x1e0
[ 6032.062194][   T73] 
[ 6032.064275][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6032.064275][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6032.064275][   T73]      ipv6_find_idev+0x102/0x170
[ 6032.064275][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6032.064275][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6032.064275][   T73]      netlink_rcv_skb+0x130/0x360
[ 6032.064275][   T73]      netlink_unicast+0x449/0x710
[ 6032.064275][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6032.064275][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6032.064275][   T73]      ___sys_sendmsg+0xee/0x170
[ 6032.064275][   T73]      __sys_sendmsg+0xcd/0x170
[ 6032.064275][   T73]      do_syscall_64+0xc6/0x1e0
[ 6032.064275][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6032.064275][   T73] 
[ 6032.065995][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6032.065995][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6032.065995][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6032.065995][   T73]      ipv6_find_idev+0x102/0x170
[ 6032.065995][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6032.065995][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6032.065995][   T73]      netlink_rcv_skb+0x130/0x360
[ 6032.065995][   T73]      netlink_unicast+0x449/0x710
[ 6032.065995][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6032.065995][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6032.065995][   T73]      ___sys_sendmsg+0xee/0x170
[ 6032.065995][   T73]      __sys_sendmsg+0xcd/0x170
[ 6032.065995][   T73]      do_syscall_64+0xc6/0x1e0
[ 6032.065995][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6032.065995][   T73] 
[ 6042.311764][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6042.312231][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6042.312231][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6042.312231][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6042.312231][   T73]      fib6_nh_init+0xa22/0x1580
[ 6042.312231][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6042.312231][   T73]      ip6_route_add+0x1c/0x140
[ 6042.312231][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6042.312231][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6042.312231][   T73]      netlink_rcv_skb+0x130/0x360
[ 6042.312231][   T73]      netlink_unicast+0x449/0x710
[ 6042.312231][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6042.312231][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6042.312231][   T73]      ___sys_sendmsg+0xee/0x170
[ 6042.312231][   T73]      __sys_sendmsg+0xcd/0x170
[ 6042.312231][   T73]      do_syscall_64+0xc6/0x1e0
[ 6042.312231][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6042.312231][   T73] 
[ 6042.314187][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6042.314187][   T73]      dst_init+0x84/0x4a0
[ 6042.314187][   T73]      dst_alloc+0x97/0x150
[ 6042.314187][   T73]      ip6_dst_alloc+0x23/0x90
[ 6042.314187][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6042.314187][   T73]      ip6_pol_route+0x56f/0x840
[ 6042.314187][   T73]      fib6_rule_lookup+0x456/0x630
[ 6042.314187][   T73]      ip6_route_input+0x59c/0xa50
[ 6042.314187][   T73]      ipv6_rcv+0x397/0x810
[ 6042.314187][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6042.314187][   T73]      process_backlog+0x101/0x620
[ 6042.314187][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6042.314187][   T73]      net_rx_action+0x495/0xbe0
[ 6042.314187][   T73]      __do_softirq+0x1b5/0x7f6
[ 6042.314187][   T73] 
[ 6042.315880][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6042.315880][   T73]      netdev_get_by_index+0x5e/0x80
[ 6042.315880][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6042.315880][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6042.315880][   T73]      ip6_route_add+0x1c/0x140
[ 6042.315880][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6042.315880][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6042.315880][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6042.315880][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6042.315880][   T73]      netlink_rcv_skb+0x130/0x360
[ 6042.315880][   T73]      netlink_unicast+0x449/0x710
[ 6042.315880][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6042.315880][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6042.315880][   T73]      ___sys_sendmsg+0xee/0x170
[ 6042.315880][   T73]      __sys_sendmsg+0xcd/0x170
[ 6042.315880][   T73]      do_syscall_64+0xc6/0x1e0
[ 6042.315880][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6042.315880][   T73] 
[ 6042.317923][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6042.317923][   T73]      netdev_get_by_index+0x5e/0x80
[ 6042.317923][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6042.317923][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6042.317923][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6042.317923][   T73]      ipv6_add_addr+0x411/0x2000
[ 6042.317923][   T73]      inet6_addr_add+0x30e/0xa40
[ 6042.317923][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6042.317923][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6042.317923][   T73]      netlink_rcv_skb+0x130/0x360
[ 6042.317923][   T73]      netlink_unicast+0x449/0x710
[ 6042.317923][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6042.317923][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6042.317923][   T73]      ___sys_sendmsg+0xee/0x170
[ 6042.317923][   T73]      __sys_sendmsg+0xcd/0x170
[ 6042.317923][   T73]      do_syscall_64+0xc6/0x1e0
[ 6042.317923][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6042.317923][   T73] 
[ 6042.319958][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6042.319958][   T73]      netdev_get_by_index+0x5e/0x80
[ 6042.319958][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6042.319958][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6042.319958][   T73]      ip6_route_add+0x1c/0x140
[ 6042.319958][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6042.319958][   T73]      addrconf_add_dev+0xe2/0x170
[ 6042.319958][   T73]      inet6_addr_add+0x12f/0xa40
[ 6042.319958][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6042.319958][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6042.319958][   T73]      netlink_rcv_skb+0x130/0x360
[ 6042.319958][   T73]      netlink_unicast+0x449/0x710
[ 6042.319958][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6042.319958][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6042.319958][   T73]      ___sys_sendmsg+0xee/0x170
[ 6042.319958][   T73]      __sys_sendmsg+0xcd/0x170
[ 6042.319958][   T73]      do_syscall_64+0xc6/0x1e0
[ 6042.319958][   T73] 
[ 6042.321958][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6042.321958][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6042.321958][   T73]      ipv6_find_idev+0x102/0x170
[ 6042.321958][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6042.321958][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6042.321958][   T73]      netlink_rcv_skb+0x130/0x360
[ 6042.321958][   T73]      netlink_unicast+0x449/0x710
[ 6042.321958][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6042.321958][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6042.321958][   T73]      ___sys_sendmsg+0xee/0x170
[ 6042.321958][   T73]      __sys_sendmsg+0xcd/0x170
[ 6042.321958][   T73]      do_syscall_64+0xc6/0x1e0
[ 6042.321958][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6042.321958][   T73] 
[ 6042.323531][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6042.323531][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6042.323531][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6042.323531][   T73]      ipv6_find_idev+0x102/0x170
[ 6042.323531][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6042.323531][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6042.323531][   T73]      netlink_rcv_skb+0x130/0x360
[ 6042.323531][   T73]      netlink_unicast+0x449/0x710
[ 6042.323531][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6042.323531][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6042.323531][   T73]      ___sys_sendmsg+0xee/0x170
[ 6042.323531][   T73]      __sys_sendmsg+0xcd/0x170
[ 6042.323531][   T73]      do_syscall_64+0xc6/0x1e0
[ 6042.323531][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6042.323531][   T73] 
[ 6042.325267][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6042.325556][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6042.325556][   T73]      netdev_get_by_index+0x5e/0x80
[ 6042.325556][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6042.325556][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6042.325556][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6042.325556][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6042.325556][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6042.325556][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6042.325556][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6042.325556][   T73]      addrconf_dad_begin+0x310/0x670
[ 6042.325556][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6042.325556][   T73]      process_one_work+0x84d/0x18a0
[ 6042.325556][   T73]      worker_thread+0x587/0xd30
[ 6042.325556][   T73]      kthread+0x28a/0x350
[ 6042.325556][   T73]      ret_from_fork+0x31/0x70
[ 6042.325556][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6042.325556][   T73] 
[ 6042.327535][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6042.327535][   T73]      netdev_get_by_index+0x5e/0x80
[ 6042.327535][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6042.327535][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6042.327535][   T73]      ip6_route_add+0x1c/0x140
[ 6042.327535][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6042.327535][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6042.327535][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6042.327535][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6042.327535][   T73]      netlink_rcv_skb+0x130/0x360
[ 6042.327535][   T73]      netlink_unicast+0x449/0x710
[ 6042.327535][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6042.327535][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6042.327535][   T73]      ___sys_sendmsg+0xee/0x170
[ 6042.327535][   T73]      __sys_sendmsg+0xcd/0x170
[ 6042.327535][   T73]      do_syscall_64+0xc6/0x1e0
[ 6042.327535][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6042.327535][   T73] 
[ 6042.329585][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6042.329585][   T73]      netdev_get_by_index+0x5e/0x80
[ 6042.329585][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6042.329585][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6042.329585][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6042.329585][   T73]      ipv6_add_addr+0x411/0x2000
[ 6042.329585][   T73]      inet6_addr_add+0x30e/0xa40
[ 6042.329585][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6042.329585][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6042.329585][   T73]      netlink_rcv_skb+0x130/0x360
[ 6042.329585][   T73]      netlink_unicast+0x449/0x710
[ 6042.329585][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6042.329585][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6042.329585][   T73]      ___sys_sendmsg+0xee/0x170
[ 6042.329585][   T73]      __sys_sendmsg+0xcd/0x170
[ 6042.329585][   T73]      do_syscall_64+0xc6/0x1e0
[ 6042.329585][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6042.329585][   T73] 
[ 6042.331633][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6042.331633][   T73]      netdev_get_by_index+0x5e/0x80
[ 6042.331633][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6042.331633][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6042.331633][   T73]      ip6_route_add+0x1c/0x140
[ 6042.331633][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6042.331633][   T73]      addrconf_add_dev+0xe2/0x170
[ 6042.331633][   T73]      inet6_addr_add+0x12f/0xa40
[ 6042.331633][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6042.331633][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6042.331633][   T73]      netlink_rcv_skb+0x130/0x360
[ 6042.331633][   T73]      netlink_unicast+0x449/0x710
[ 6042.331633][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6042.331633][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6042.331633][   T73]      ___sys_sendmsg+0xee/0x170
[ 6042.331633][   T73]      __sys_sendmsg+0xcd/0x170
[ 6042.331633][   T73]      do_syscall_64+0xc6/0x1e0
[ 6042.331633][   T73] 
[ 6042.333636][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6042.333636][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6042.333636][   T73]      ipv6_find_idev+0x102/0x170
[ 6042.333636][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6042.333636][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6042.333636][   T73]      netlink_rcv_skb+0x130/0x360
[ 6042.333636][   T73]      netlink_unicast+0x449/0x710
[ 6042.333636][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6042.333636][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6042.333636][   T73]      ___sys_sendmsg+0xee/0x170
[ 6042.333636][   T73]      __sys_sendmsg+0xcd/0x170
[ 6042.333636][   T73]      do_syscall_64+0xc6/0x1e0
[ 6042.333636][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6042.333636][   T73] 
[ 6042.335212][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6042.335212][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6042.335212][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6042.335212][   T73]      ipv6_find_idev+0x102/0x170
[ 6042.335212][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6042.335212][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6042.335212][   T73]      netlink_rcv_skb+0x130/0x360
[ 6042.335212][   T73]      netlink_unicast+0x449/0x710
[ 6042.335212][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6042.335212][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6042.335212][   T73]      ___sys_sendmsg+0xee/0x170
[ 6042.335212][   T73]      __sys_sendmsg+0xcd/0x170
[ 6042.335212][   T73]      do_syscall_64+0xc6/0x1e0
[ 6042.335212][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6042.335212][   T73] 
[ 6042.336962][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6042.337245][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6042.337245][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6042.337245][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6042.337245][   T73]      fib6_nh_init+0xa22/0x1580
[ 6042.337245][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6042.337245][   T73]      ip6_route_add+0x1c/0x140
[ 6042.337245][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6042.337245][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6042.337245][   T73]      netlink_rcv_skb+0x130/0x360
[ 6042.337245][   T73]      netlink_unicast+0x449/0x710
[ 6042.337245][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6042.337245][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6042.337245][   T73]      ___sys_sendmsg+0xee/0x170
[ 6042.337245][   T73]      __sys_sendmsg+0xcd/0x170
[ 6042.337245][   T73]      do_syscall_64+0xc6/0x1e0
[ 6042.337245][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6042.337245][   T73] 
[ 6042.339296][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6042.339296][   T73]      dst_init+0x84/0x4a0
[ 6042.339296][   T73]      dst_alloc+0x97/0x150
[ 6042.339296][   T73]      ip6_dst_alloc+0x23/0x90
[ 6042.339296][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6042.339296][   T73]      ip6_pol_route+0x56f/0x840
[ 6042.339296][   T73]      fib6_rule_lookup+0x456/0x630
[ 6042.339296][   T73]      ip6_route_input+0x59c/0xa50
[ 6042.339296][   T73]      ipv6_rcv+0x397/0x810
[ 6042.339296][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6042.339296][   T73]      process_backlog+0x101/0x620
[ 6042.339296][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6042.339296][   T73]      net_rx_action+0x495/0xbe0
[ 6042.339296][   T73]      __do_softirq+0x1b5/0x7f6
[ 6042.339296][   T73] 
[ 6042.341225][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6042.341225][   T73]      netdev_get_by_index+0x5e/0x80
[ 6042.341225][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6042.341225][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6042.341225][   T73]      ip6_route_add+0x1c/0x140
[ 6042.341225][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6042.341225][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6042.341225][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6042.341225][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6042.341225][   T73]      netlink_rcv_skb+0x130/0x360
[ 6042.341225][   T73]      netlink_unicast+0x449/0x710
[ 6042.341225][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6042.341225][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6042.341225][   T73]      ___sys_sendmsg+0xee/0x170
[ 6042.341225][   T73]      __sys_sendmsg+0xcd/0x170
[ 6042.341225][   T73]      do_syscall_64+0xc6/0x1e0
[ 6042.341225][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6042.341225][   T73] 
[ 6042.343523][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6042.343523][   T73]      netdev_get_by_index+0x5e/0x80
[ 6042.343523][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6042.343523][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6042.343523][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6042.343523][   T73]      ipv6_add_addr+0x411/0x2000
[ 6042.343523][   T73]      inet6_addr_add+0x30e/0xa40
[ 6042.343523][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6042.343523][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6042.343523][   T73]      netlink_rcv_skb+0x130/0x360
[ 6042.343523][   T73]      netlink_unicast+0x449/0x710
[ 6042.343523][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6042.343523][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6042.343523][   T73]      ___sys_sendmsg+0xee/0x170
[ 6042.343523][   T73]      __sys_sendmsg+0xcd/0x170
[ 6042.343523][   T73]      do_syscall_64+0xc6/0x1e0
[ 6042.343523][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6042.343523][   T73] 
[ 6042.345798][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6042.345798][   T73]      netdev_get_by_index+0x5e/0x80
[ 6042.345798][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6042.345798][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6042.345798][   T73]      ip6_route_add+0x1c/0x140
[ 6042.345798][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6042.345798][   T73]      addrconf_add_dev+0xe2/0x170
[ 6042.345798][   T73]      inet6_addr_add+0x12f/0xa40
[ 6042.345798][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6042.345798][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6042.345798][   T73]      netlink_rcv_skb+0x130/0x360
[ 6042.345798][   T73]      netlink_unicast+0x449/0x710
[ 6042.345798][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6042.345798][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6042.345798][   T73]      ___sys_sendmsg+0xee/0x170
[ 6042.345798][   T73]      __sys_sendmsg+0xcd/0x170
[ 6042.345798][   T73]      do_syscall_64+0xc6/0x1e0
[ 6042.345798][   T73] 
[ 6042.348052][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6042.348052][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6042.348052][   T73]      ipv6_find_idev+0x102/0x170
[ 6042.348052][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6042.348052][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6042.348052][   T73]      netlink_rcv_skb+0x130/0x360
[ 6042.348052][   T73]      netlink_unicast+0x449/0x710
[ 6042.348052][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6042.348052][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6042.348052][   T73]      ___sys_sendmsg+0xee/0x170
[ 6042.348052][   T73]      __sys_sendmsg+0xcd/0x170
[ 6042.348052][   T73]      do_syscall_64+0xc6/0x1e0
[ 6042.348052][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6042.348052][   T73] 
[ 6042.349872][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6042.349872][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6042.349872][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6042.349872][   T73]      ipv6_find_idev+0x102/0x170
[ 6042.349872][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6042.349872][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6042.349872][   T73]      netlink_rcv_skb+0x130/0x360
[ 6042.349872][   T73]      netlink_unicast+0x449/0x710
[ 6042.349872][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6042.349872][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6042.349872][   T73]      ___sys_sendmsg+0xee/0x170
[ 6042.349872][   T73]      __sys_sendmsg+0xcd/0x170
[ 6042.349872][   T73]      do_syscall_64+0xc6/0x1e0
[ 6042.349872][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6042.349872][   T73] 
[ 6042.351779][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6042.352051][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6042.352051][   T73]      netdev_get_by_index+0x5e/0x80
[ 6042.352051][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6042.352051][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6042.352051][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6042.352051][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6042.352051][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6042.352051][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6042.352051][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6042.352051][   T73]      addrconf_dad_begin+0x310/0x670
[ 6042.352051][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6042.352051][   T73]      process_one_work+0x84d/0x18a0
[ 6042.352051][   T73]      worker_thread+0x587/0xd30
[ 6042.352051][   T73]      kthread+0x28a/0x350
[ 6042.352051][   T73]      ret_from_fork+0x31/0x70
[ 6042.352051][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6042.352051][   T73] 
[ 6042.354252][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6042.354252][   T73]      netdev_get_by_index+0x5e/0x80
[ 6042.354252][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6042.354252][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6042.354252][   T73]      ip6_route_add+0x1c/0x140
[ 6042.354252][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6042.354252][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6042.354252][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6042.354252][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6042.354252][   T73]      netlink_rcv_skb+0x130/0x360
[ 6042.354252][   T73]      netlink_unicast+0x449/0x710
[ 6042.354252][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6042.354252][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6042.354252][   T73]      ___sys_sendmsg+0xee/0x170
[ 6042.354252][   T73]      __sys_sendmsg+0xcd/0x170
[ 6042.354252][   T73]      do_syscall_64+0xc6/0x1e0
[ 6042.354252][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6042.354252][   T73] 
[ 6042.356567][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6042.356567][   T73]      netdev_get_by_index+0x5e/0x80
[ 6042.356567][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6042.356567][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6042.356567][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6042.356567][   T73]      ipv6_add_addr+0x411/0x2000
[ 6042.356567][   T73]      inet6_addr_add+0x30e/0xa40
[ 6042.356567][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6042.356567][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6042.356567][   T73]      netlink_rcv_skb+0x130/0x360
[ 6042.356567][   T73]      netlink_unicast+0x449/0x710
[ 6042.356567][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6042.356567][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6042.356567][   T73]      ___sys_sendmsg+0xee/0x170
[ 6042.356567][   T73]      __sys_sendmsg+0xcd/0x170
[ 6042.356567][   T73]      do_syscall_64+0xc6/0x1e0
[ 6042.356567][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6042.356567][   T73] 
[ 6042.358835][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6042.358835][   T73]      netdev_get_by_index+0x5e/0x80
[ 6042.358835][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6042.358835][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6042.358835][   T73]      ip6_route_add+0x1c/0x140
[ 6042.358835][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6042.358835][   T73]      addrconf_add_dev+0xe2/0x170
[ 6042.358835][   T73]      inet6_addr_add+0x12f/0xa40
[ 6042.358835][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6042.358835][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6042.358835][   T73]      netlink_rcv_skb+0x130/0x360
[ 6042.358835][   T73]      netlink_unicast+0x449/0x710
[ 6042.358835][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6042.358835][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6042.358835][   T73]      ___sys_sendmsg+0xee/0x170
[ 6042.358835][   T73]      __sys_sendmsg+0xcd/0x170
[ 6042.358835][   T73]      do_syscall_64+0xc6/0x1e0
[ 6042.358835][   T73] 
[ 6042.361082][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6042.361082][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6042.361082][   T73]      ipv6_find_idev+0x102/0x170
[ 6042.361082][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6042.361082][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6042.361082][   T73]      netlink_rcv_skb+0x130/0x360
[ 6042.361082][   T73]      netlink_unicast+0x449/0x710
[ 6042.361082][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6042.361082][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6042.361082][   T73]      ___sys_sendmsg+0xee/0x170
[ 6042.361082][   T73]      __sys_sendmsg+0xcd/0x170
[ 6042.361082][   T73]      do_syscall_64+0xc6/0x1e0
[ 6042.361082][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6042.361082][   T73] 
[ 6042.362836][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6042.362836][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6042.362836][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6042.362836][   T73]      ipv6_find_idev+0x102/0x170
[ 6042.362836][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6042.362836][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6042.362836][   T73]      netlink_rcv_skb+0x130/0x360
[ 6042.362836][   T73]      netlink_unicast+0x449/0x710
[ 6042.362836][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6042.362836][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6042.362836][   T73]      ___sys_sendmsg+0xee/0x170
[ 6042.362836][   T73]      __sys_sendmsg+0xcd/0x170
[ 6042.362836][   T73]      do_syscall_64+0xc6/0x1e0
[ 6042.362836][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6042.362836][   T73] 
[ 6052.607776][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6052.608257][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6052.608257][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6052.608257][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6052.608257][   T73]      fib6_nh_init+0xa22/0x1580
[ 6052.608257][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6052.608257][   T73]      ip6_route_add+0x1c/0x140
[ 6052.608257][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6052.608257][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6052.608257][   T73]      netlink_rcv_skb+0x130/0x360
[ 6052.608257][   T73]      netlink_unicast+0x449/0x710
[ 6052.608257][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6052.608257][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6052.608257][   T73]      ___sys_sendmsg+0xee/0x170
[ 6052.608257][   T73]      __sys_sendmsg+0xcd/0x170
[ 6052.608257][   T73]      do_syscall_64+0xc6/0x1e0
[ 6052.608257][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6052.608257][   T73] 
[ 6052.610221][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6052.610221][   T73]      dst_init+0x84/0x4a0
[ 6052.610221][   T73]      dst_alloc+0x97/0x150
[ 6052.610221][   T73]      ip6_dst_alloc+0x23/0x90
[ 6052.610221][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6052.610221][   T73]      ip6_pol_route+0x56f/0x840
[ 6052.610221][   T73]      fib6_rule_lookup+0x456/0x630
[ 6052.610221][   T73]      ip6_route_input+0x59c/0xa50
[ 6052.610221][   T73]      ipv6_rcv+0x397/0x810
[ 6052.610221][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6052.610221][   T73]      process_backlog+0x101/0x620
[ 6052.610221][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6052.610221][   T73]      net_rx_action+0x495/0xbe0
[ 6052.610221][   T73]      __do_softirq+0x1b5/0x7f6
[ 6052.610221][   T73] 
[ 6052.611918][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6052.611918][   T73]      netdev_get_by_index+0x5e/0x80
[ 6052.611918][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6052.611918][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6052.611918][   T73]      ip6_route_add+0x1c/0x140
[ 6052.611918][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6052.611918][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6052.611918][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6052.611918][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6052.611918][   T73]      netlink_rcv_skb+0x130/0x360
[ 6052.611918][   T73]      netlink_unicast+0x449/0x710
[ 6052.611918][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6052.611918][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6052.611918][   T73]      ___sys_sendmsg+0xee/0x170
[ 6052.611918][   T73]      __sys_sendmsg+0xcd/0x170
[ 6052.611918][   T73]      do_syscall_64+0xc6/0x1e0
[ 6052.611918][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6052.611918][   T73] 
[ 6052.613967][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6052.613967][   T73]      netdev_get_by_index+0x5e/0x80
[ 6052.613967][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6052.613967][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6052.613967][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6052.613967][   T73]      ipv6_add_addr+0x411/0x2000
[ 6052.613967][   T73]      inet6_addr_add+0x30e/0xa40
[ 6052.613967][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6052.613967][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6052.613967][   T73]      netlink_rcv_skb+0x130/0x360
[ 6052.613967][   T73]      netlink_unicast+0x449/0x710
[ 6052.613967][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6052.613967][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6052.613967][   T73]      ___sys_sendmsg+0xee/0x170
[ 6052.613967][   T73]      __sys_sendmsg+0xcd/0x170
[ 6052.613967][   T73]      do_syscall_64+0xc6/0x1e0
[ 6052.613967][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6052.613967][   T73] 
[ 6052.616009][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6052.616009][   T73]      netdev_get_by_index+0x5e/0x80
[ 6052.616009][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6052.616009][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6052.616009][   T73]      ip6_route_add+0x1c/0x140
[ 6052.616009][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6052.616009][   T73]      addrconf_add_dev+0xe2/0x170
[ 6052.616009][   T73]      inet6_addr_add+0x12f/0xa40
[ 6052.616009][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6052.616009][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6052.616009][   T73]      netlink_rcv_skb+0x130/0x360
[ 6052.616009][   T73]      netlink_unicast+0x449/0x710
[ 6052.616009][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6052.616009][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6052.616009][   T73]      ___sys_sendmsg+0xee/0x170
[ 6052.616009][   T73]      __sys_sendmsg+0xcd/0x170
[ 6052.616009][   T73]      do_syscall_64+0xc6/0x1e0
[ 6052.616009][   T73] 
[ 6052.618030][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6052.618030][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6052.618030][   T73]      ipv6_find_idev+0x102/0x170
[ 6052.618030][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6052.618030][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6052.618030][   T73]      netlink_rcv_skb+0x130/0x360
[ 6052.618030][   T73]      netlink_unicast+0x449/0x710
[ 6052.618030][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6052.618030][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6052.618030][   T73]      ___sys_sendmsg+0xee/0x170
[ 6052.618030][   T73]      __sys_sendmsg+0xcd/0x170
[ 6052.618030][   T73]      do_syscall_64+0xc6/0x1e0
[ 6052.618030][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6052.618030][   T73] 
[ 6052.619613][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6052.619613][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6052.619613][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6052.619613][   T73]      ipv6_find_idev+0x102/0x170
[ 6052.619613][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6052.619613][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6052.619613][   T73]      netlink_rcv_skb+0x130/0x360
[ 6052.619613][   T73]      netlink_unicast+0x449/0x710
[ 6052.619613][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6052.619613][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6052.619613][   T73]      ___sys_sendmsg+0xee/0x170
[ 6052.619613][   T73]      __sys_sendmsg+0xcd/0x170
[ 6052.619613][   T73]      do_syscall_64+0xc6/0x1e0
[ 6052.619613][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6052.619613][   T73] 
[ 6052.621356][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6052.621640][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6052.621640][   T73]      netdev_get_by_index+0x5e/0x80
[ 6052.621640][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6052.621640][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6052.621640][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6052.621640][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6052.621640][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6052.621640][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6052.621640][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6052.621640][   T73]      addrconf_dad_begin+0x310/0x670
[ 6052.621640][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6052.621640][   T73]      process_one_work+0x84d/0x18a0
[ 6052.621640][   T73]      worker_thread+0x587/0xd30
[ 6052.621640][   T73]      kthread+0x28a/0x350
[ 6052.621640][   T73]      ret_from_fork+0x31/0x70
[ 6052.621640][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6052.621640][   T73] 
[ 6052.623591][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6052.623591][   T73]      netdev_get_by_index+0x5e/0x80
[ 6052.623591][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6052.623591][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6052.623591][   T73]      ip6_route_add+0x1c/0x140
[ 6052.623591][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6052.623591][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6052.623591][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6052.623591][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6052.623591][   T73]      netlink_rcv_skb+0x130/0x360
[ 6052.623591][   T73]      netlink_unicast+0x449/0x710
[ 6052.623591][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6052.623591][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6052.623591][   T73]      ___sys_sendmsg+0xee/0x170
[ 6052.623591][   T73]      __sys_sendmsg+0xcd/0x170
[ 6052.623591][   T73]      do_syscall_64+0xc6/0x1e0
[ 6052.623591][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6052.623591][   T73] 
[ 6052.625630][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6052.625630][   T73]      netdev_get_by_index+0x5e/0x80
[ 6052.625630][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6052.625630][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6052.625630][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6052.625630][   T73]      ipv6_add_addr+0x411/0x2000
[ 6052.625630][   T73]      inet6_addr_add+0x30e/0xa40
[ 6052.625630][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6052.625630][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6052.625630][   T73]      netlink_rcv_skb+0x130/0x360
[ 6052.625630][   T73]      netlink_unicast+0x449/0x710
[ 6052.625630][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6052.625630][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6052.625630][   T73]      ___sys_sendmsg+0xee/0x170
[ 6052.625630][   T73]      __sys_sendmsg+0xcd/0x170
[ 6052.625630][   T73]      do_syscall_64+0xc6/0x1e0
[ 6052.625630][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6052.625630][   T73] 
[ 6052.627672][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6052.627672][   T73]      netdev_get_by_index+0x5e/0x80
[ 6052.627672][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6052.627672][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6052.627672][   T73]      ip6_route_add+0x1c/0x140
[ 6052.627672][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6052.627672][   T73]      addrconf_add_dev+0xe2/0x170
[ 6052.627672][   T73]      inet6_addr_add+0x12f/0xa40
[ 6052.627672][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6052.627672][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6052.627672][   T73]      netlink_rcv_skb+0x130/0x360
[ 6052.627672][   T73]      netlink_unicast+0x449/0x710
[ 6052.627672][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6052.627672][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6052.627672][   T73]      ___sys_sendmsg+0xee/0x170
[ 6052.627672][   T73]      __sys_sendmsg+0xcd/0x170
[ 6052.627672][   T73]      do_syscall_64+0xc6/0x1e0
[ 6052.627672][   T73] 
[ 6052.629676][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6052.629676][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6052.629676][   T73]      ipv6_find_idev+0x102/0x170
[ 6052.629676][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6052.629676][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6052.629676][   T73]      netlink_rcv_skb+0x130/0x360
[ 6052.629676][   T73]      netlink_unicast+0x449/0x710
[ 6052.629676][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6052.629676][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6052.629676][   T73]      ___sys_sendmsg+0xee/0x170
[ 6052.629676][   T73]      __sys_sendmsg+0xcd/0x170
[ 6052.629676][   T73]      do_syscall_64+0xc6/0x1e0
[ 6052.629676][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6052.629676][   T73] 
[ 6052.631245][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6052.631245][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6052.631245][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6052.631245][   T73]      ipv6_find_idev+0x102/0x170
[ 6052.631245][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6052.631245][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6052.631245][   T73]      netlink_rcv_skb+0x130/0x360
[ 6052.631245][   T73]      netlink_unicast+0x449/0x710
[ 6052.631245][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6052.631245][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6052.631245][   T73]      ___sys_sendmsg+0xee/0x170
[ 6052.631245][   T73]      __sys_sendmsg+0xcd/0x170
[ 6052.631245][   T73]      do_syscall_64+0xc6/0x1e0
[ 6052.631245][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6052.631245][   T73] 
[ 6052.632968][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6052.633250][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6052.633250][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6052.633250][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6052.633250][   T73]      fib6_nh_init+0xa22/0x1580
[ 6052.633250][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6052.633250][   T73]      ip6_route_add+0x1c/0x140
[ 6052.633250][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6052.633250][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6052.633250][   T73]      netlink_rcv_skb+0x130/0x360
[ 6052.633250][   T73]      netlink_unicast+0x449/0x710
[ 6052.633250][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6052.633250][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6052.633250][   T73]      ___sys_sendmsg+0xee/0x170
[ 6052.633250][   T73]      __sys_sendmsg+0xcd/0x170
[ 6052.633250][   T73]      do_syscall_64+0xc6/0x1e0
[ 6052.633250][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6052.633250][   T73] 
[ 6052.635348][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6052.635348][   T73]      dst_init+0x84/0x4a0
[ 6052.635348][   T73]      dst_alloc+0x97/0x150
[ 6052.635348][   T73]      ip6_dst_alloc+0x23/0x90
[ 6052.635348][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6052.635348][   T73]      ip6_pol_route+0x56f/0x840
[ 6052.635348][   T73]      fib6_rule_lookup+0x456/0x630
[ 6052.635348][   T73]      ip6_route_input+0x59c/0xa50
[ 6052.635348][   T73]      ipv6_rcv+0x397/0x810
[ 6052.635348][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6052.635348][   T73]      process_backlog+0x101/0x620
[ 6052.635348][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6052.635348][   T73]      net_rx_action+0x495/0xbe0
[ 6052.635348][   T73]      __do_softirq+0x1b5/0x7f6
[ 6052.635348][   T73] 
[ 6052.637271][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6052.637271][   T73]      netdev_get_by_index+0x5e/0x80
[ 6052.637271][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6052.637271][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6052.637271][   T73]      ip6_route_add+0x1c/0x140
[ 6052.637271][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6052.637271][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6052.637271][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6052.637271][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6052.637271][   T73]      netlink_rcv_skb+0x130/0x360
[ 6052.637271][   T73]      netlink_unicast+0x449/0x710
[ 6052.637271][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6052.637271][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6052.637271][   T73]      ___sys_sendmsg+0xee/0x170
[ 6052.637271][   T73]      __sys_sendmsg+0xcd/0x170
[ 6052.637271][   T73]      do_syscall_64+0xc6/0x1e0
[ 6052.637271][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6052.637271][   T73] 
[ 6052.639561][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6052.639561][   T73]      netdev_get_by_index+0x5e/0x80
[ 6052.639561][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6052.639561][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6052.639561][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6052.639561][   T73]      ipv6_add_addr+0x411/0x2000
[ 6052.639561][   T73]      inet6_addr_add+0x30e/0xa40
[ 6052.639561][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6052.639561][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6052.639561][   T73]      netlink_rcv_skb+0x130/0x360
[ 6052.639561][   T73]      netlink_unicast+0x449/0x710
[ 6052.639561][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6052.639561][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6052.639561][   T73]      ___sys_sendmsg+0xee/0x170
[ 6052.639561][   T73]      __sys_sendmsg+0xcd/0x170
[ 6052.639561][   T73]      do_syscall_64+0xc6/0x1e0
[ 6052.639561][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6052.639561][   T73] 
[ 6052.641845][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6052.641845][   T73]      netdev_get_by_index+0x5e/0x80
[ 6052.641845][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6052.641845][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6052.641845][   T73]      ip6_route_add+0x1c/0x140
[ 6052.641845][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6052.641845][   T73]      addrconf_add_dev+0xe2/0x170
[ 6052.641845][   T73]      inet6_addr_add+0x12f/0xa40
[ 6052.641845][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6052.641845][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6052.641845][   T73]      netlink_rcv_skb+0x130/0x360
[ 6052.641845][   T73]      netlink_unicast+0x449/0x710
[ 6052.641845][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6052.641845][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6052.641845][   T73]      ___sys_sendmsg+0xee/0x170
[ 6052.641845][   T73]      __sys_sendmsg+0xcd/0x170
[ 6052.641845][   T73]      do_syscall_64+0xc6/0x1e0
[ 6052.641845][   T73] 
[ 6052.644091][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6052.644091][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6052.644091][   T73]      ipv6_find_idev+0x102/0x170
[ 6052.644091][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6052.644091][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6052.644091][   T73]      netlink_rcv_skb+0x130/0x360
[ 6052.644091][   T73]      netlink_unicast+0x449/0x710
[ 6052.644091][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6052.644091][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6052.644091][   T73]      ___sys_sendmsg+0xee/0x170
[ 6052.644091][   T73]      __sys_sendmsg+0xcd/0x170
[ 6052.644091][   T73]      do_syscall_64+0xc6/0x1e0
[ 6052.644091][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6052.644091][   T73] 
[ 6052.645911][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6052.645911][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6052.645911][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6052.645911][   T73]      ipv6_find_idev+0x102/0x170
[ 6052.645911][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6052.645911][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6052.645911][   T73]      netlink_rcv_skb+0x130/0x360
[ 6052.645911][   T73]      netlink_unicast+0x449/0x710
[ 6052.645911][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6052.645911][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6052.645911][   T73]      ___sys_sendmsg+0xee/0x170
[ 6052.645911][   T73]      __sys_sendmsg+0xcd/0x170
[ 6052.645911][   T73]      do_syscall_64+0xc6/0x1e0
[ 6052.645911][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6052.645911][   T73] 
[ 6052.647820][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6052.648099][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6052.648099][   T73]      netdev_get_by_index+0x5e/0x80
[ 6052.648099][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6052.648099][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6052.648099][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6052.648099][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6052.648099][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6052.648099][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6052.648099][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6052.648099][   T73]      addrconf_dad_begin+0x310/0x670
[ 6052.648099][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6052.648099][   T73]      process_one_work+0x84d/0x18a0
[ 6052.648099][   T73]      worker_thread+0x587/0xd30
[ 6052.648099][   T73]      kthread+0x28a/0x350
[ 6052.648099][   T73]      ret_from_fork+0x31/0x70
[ 6052.648099][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6052.648099][   T73] 
[ 6052.650294][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6052.650294][   T73]      netdev_get_by_index+0x5e/0x80
[ 6052.650294][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6052.650294][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6052.650294][   T73]      ip6_route_add+0x1c/0x140
[ 6052.650294][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6052.650294][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6052.650294][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6052.650294][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6052.650294][   T73]      netlink_rcv_skb+0x130/0x360
[ 6052.650294][   T73]      netlink_unicast+0x449/0x710
[ 6052.650294][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6052.650294][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6052.650294][   T73]      ___sys_sendmsg+0xee/0x170
[ 6052.650294][   T73]      __sys_sendmsg+0xcd/0x170
[ 6052.650294][   T73]      do_syscall_64+0xc6/0x1e0
[ 6052.650294][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6052.650294][   T73] 
[ 6052.652581][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6052.652581][   T73]      netdev_get_by_index+0x5e/0x80
[ 6052.652581][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6052.652581][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6052.652581][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6052.652581][   T73]      ipv6_add_addr+0x411/0x2000
[ 6052.652581][   T73]      inet6_addr_add+0x30e/0xa40
[ 6052.652581][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6052.652581][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6052.652581][   T73]      netlink_rcv_skb+0x130/0x360
[ 6052.652581][   T73]      netlink_unicast+0x449/0x710
[ 6052.652581][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6052.652581][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6052.652581][   T73]      ___sys_sendmsg+0xee/0x170
[ 6052.652581][   T73]      __sys_sendmsg+0xcd/0x170
[ 6052.652581][   T73]      do_syscall_64+0xc6/0x1e0
[ 6052.652581][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6052.652581][   T73] 
[ 6052.654919][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6052.654919][   T73]      netdev_get_by_index+0x5e/0x80
[ 6052.654919][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6052.654919][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6052.654919][   T73]      ip6_route_add+0x1c/0x140
[ 6052.654919][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6052.654919][   T73]      addrconf_add_dev+0xe2/0x170
[ 6052.654919][   T73]      inet6_addr_add+0x12f/0xa40
[ 6052.654919][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6052.654919][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6052.654919][   T73]      netlink_rcv_skb+0x130/0x360
[ 6052.654919][   T73]      netlink_unicast+0x449/0x710
[ 6052.654919][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6052.654919][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6052.654919][   T73]      ___sys_sendmsg+0xee/0x170
[ 6052.654919][   T73]      __sys_sendmsg+0xcd/0x170
[ 6052.654919][   T73]      do_syscall_64+0xc6/0x1e0
[ 6052.654919][   T73] 
[ 6052.657112][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6052.657112][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6052.657112][   T73]      ipv6_find_idev+0x102/0x170
[ 6052.657112][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6052.657112][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6052.657112][   T73]      netlink_rcv_skb+0x130/0x360
[ 6052.657112][   T73]      netlink_unicast+0x449/0x710
[ 6052.657112][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6052.657112][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6052.657112][   T73]      ___sys_sendmsg+0xee/0x170
[ 6052.657112][   T73]      __sys_sendmsg+0xcd/0x170
[ 6052.657112][   T73]      do_syscall_64+0xc6/0x1e0
[ 6052.657112][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6052.657112][   T73] 
[ 6052.659409][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6052.659409][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6052.659409][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6052.659409][   T73]      ipv6_find_idev+0x102/0x170
[ 6052.659409][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6052.659409][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6052.659409][   T73]      netlink_rcv_skb+0x130/0x360
[ 6052.659409][   T73]      netlink_unicast+0x449/0x710
[ 6052.659409][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6052.659409][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6052.659409][   T73]      ___sys_sendmsg+0xee/0x170
[ 6052.659409][   T73]      __sys_sendmsg+0xcd/0x170
[ 6052.659409][   T73]      do_syscall_64+0xc6/0x1e0
[ 6052.659409][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6052.659409][   T73] 
[ 6062.687768][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6062.688285][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6062.688285][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6062.688285][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6062.688285][   T73]      fib6_nh_init+0xa22/0x1580
[ 6062.688285][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6062.688285][   T73]      ip6_route_add+0x1c/0x140
[ 6062.688285][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6062.688285][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6062.688285][   T73]      netlink_rcv_skb+0x130/0x360
[ 6062.688285][   T73]      netlink_unicast+0x449/0x710
[ 6062.688285][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6062.688285][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6062.688285][   T73]      ___sys_sendmsg+0xee/0x170
[ 6062.688285][   T73]      __sys_sendmsg+0xcd/0x170
[ 6062.688285][   T73]      do_syscall_64+0xc6/0x1e0
[ 6062.688285][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6062.688285][   T73] 
[ 6062.690425][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6062.690425][   T73]      dst_init+0x84/0x4a0
[ 6062.690425][   T73]      dst_alloc+0x97/0x150
[ 6062.690425][   T73]      ip6_dst_alloc+0x23/0x90
[ 6062.690425][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6062.690425][   T73]      ip6_pol_route+0x56f/0x840
[ 6062.690425][   T73]      fib6_rule_lookup+0x456/0x630
[ 6062.690425][   T73]      ip6_route_input+0x59c/0xa50
[ 6062.690425][   T73]      ipv6_rcv+0x397/0x810
[ 6062.690425][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6062.690425][   T73]      process_backlog+0x101/0x620
[ 6062.690425][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6062.690425][   T73]      net_rx_action+0x495/0xbe0
[ 6062.690425][   T73]      __do_softirq+0x1b5/0x7f6
[ 6062.690425][   T73] 
[ 6062.692252][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6062.692252][   T73]      netdev_get_by_index+0x5e/0x80
[ 6062.692252][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6062.692252][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6062.692252][   T73]      ip6_route_add+0x1c/0x140
[ 6062.692252][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6062.692252][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6062.692252][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6062.692252][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6062.692252][   T73]      netlink_rcv_skb+0x130/0x360
[ 6062.692252][   T73]      netlink_unicast+0x449/0x710
[ 6062.692252][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6062.692252][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6062.692252][   T73]      ___sys_sendmsg+0xee/0x170
[ 6062.692252][   T73]      __sys_sendmsg+0xcd/0x170
[ 6062.692252][   T73]      do_syscall_64+0xc6/0x1e0
[ 6062.692252][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6062.692252][   T73] 
[ 6062.694504][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6062.694504][   T73]      netdev_get_by_index+0x5e/0x80
[ 6062.694504][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6062.694504][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6062.694504][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6062.694504][   T73]      ipv6_add_addr+0x411/0x2000
[ 6062.694504][   T73]      inet6_addr_add+0x30e/0xa40
[ 6062.694504][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6062.694504][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6062.694504][   T73]      netlink_rcv_skb+0x130/0x360
[ 6062.694504][   T73]      netlink_unicast+0x449/0x710
[ 6062.694504][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6062.694504][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6062.694504][   T73]      ___sys_sendmsg+0xee/0x170
[ 6062.694504][   T73]      __sys_sendmsg+0xcd/0x170
[ 6062.694504][   T73]      do_syscall_64+0xc6/0x1e0
[ 6062.694504][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6062.694504][   T73] 
[ 6062.696872][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6062.696872][   T73]      netdev_get_by_index+0x5e/0x80
[ 6062.696872][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6062.696872][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6062.696872][   T73]      ip6_route_add+0x1c/0x140
[ 6062.696872][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6062.696872][   T73]      addrconf_add_dev+0xe2/0x170
[ 6062.696872][   T73]      inet6_addr_add+0x12f/0xa40
[ 6062.696872][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6062.696872][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6062.696872][   T73]      netlink_rcv_skb+0x130/0x360
[ 6062.696872][   T73]      netlink_unicast+0x449/0x710
[ 6062.696872][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6062.696872][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6062.696872][   T73]      ___sys_sendmsg+0xee/0x170
[ 6062.696872][   T73]      __sys_sendmsg+0xcd/0x170
[ 6062.696872][   T73]      do_syscall_64+0xc6/0x1e0
[ 6062.696872][   T73] 
[ 6062.699062][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6062.699062][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6062.699062][   T73]      ipv6_find_idev+0x102/0x170
[ 6062.699062][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6062.699062][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6062.699062][   T73]      netlink_rcv_skb+0x130/0x360
[ 6062.699062][   T73]      netlink_unicast+0x449/0x710
[ 6062.699062][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6062.699062][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6062.699062][   T73]      ___sys_sendmsg+0xee/0x170
[ 6062.699062][   T73]      __sys_sendmsg+0xcd/0x170
[ 6062.699062][   T73]      do_syscall_64+0xc6/0x1e0
[ 6062.699062][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6062.699062][   T73] 
[ 6062.700782][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6062.700782][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6062.700782][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6062.700782][   T73]      ipv6_find_idev+0x102/0x170
[ 6062.700782][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6062.700782][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6062.700782][   T73]      netlink_rcv_skb+0x130/0x360
[ 6062.700782][   T73]      netlink_unicast+0x449/0x710
[ 6062.700782][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6062.700782][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6062.700782][   T73]      ___sys_sendmsg+0xee/0x170
[ 6062.700782][   T73]      __sys_sendmsg+0xcd/0x170
[ 6062.700782][   T73]      do_syscall_64+0xc6/0x1e0
[ 6062.700782][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6062.700782][   T73] 
[ 6062.702676][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6062.702985][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6062.702985][   T73]      netdev_get_by_index+0x5e/0x80
[ 6062.702985][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6062.702985][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6062.702985][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6062.702985][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6062.702985][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6062.702985][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6062.702985][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6062.702985][   T73]      addrconf_dad_begin+0x310/0x670
[ 6062.702985][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6062.702985][   T73]      process_one_work+0x84d/0x18a0
[ 6062.702985][   T73]      worker_thread+0x587/0xd30
[ 6062.702985][   T73]      kthread+0x28a/0x350
[ 6062.702985][   T73]      ret_from_fork+0x31/0x70
[ 6062.702985][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6062.702985][   T73] 
[ 6062.705109][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6062.705109][   T73]      netdev_get_by_index+0x5e/0x80
[ 6062.705109][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6062.705109][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6062.705109][   T73]      ip6_route_add+0x1c/0x140
[ 6062.705109][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6062.705109][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6062.705109][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6062.705109][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6062.705109][   T73]      netlink_rcv_skb+0x130/0x360
[ 6062.705109][   T73]      netlink_unicast+0x449/0x710
[ 6062.705109][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6062.705109][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6062.705109][   T73]      ___sys_sendmsg+0xee/0x170
[ 6062.705109][   T73]      __sys_sendmsg+0xcd/0x170
[ 6062.705109][   T73]      do_syscall_64+0xc6/0x1e0
[ 6062.705109][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6062.705109][   T73] 
[ 6062.709726][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6062.709726][   T73]      netdev_get_by_index+0x5e/0x80
[ 6062.709726][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6062.709726][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6062.709726][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6062.709726][   T73]      ipv6_add_addr+0x411/0x2000
[ 6062.709726][   T73]      inet6_addr_add+0x30e/0xa40
[ 6062.709726][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6062.709726][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6062.709726][   T73]      netlink_rcv_skb+0x130/0x360
[ 6062.709726][   T73]      netlink_unicast+0x449/0x710
[ 6062.709726][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6062.709726][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6062.709726][   T73]      ___sys_sendmsg+0xee/0x170
[ 6062.709726][   T73]      __sys_sendmsg+0xcd/0x170
[ 6062.709726][   T73]      do_syscall_64+0xc6/0x1e0
[ 6062.709726][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6062.709726][   T73] 
[ 6062.711960][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6062.711960][   T73]      netdev_get_by_index+0x5e/0x80
[ 6062.711960][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6062.711960][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6062.711960][   T73]      ip6_route_add+0x1c/0x140
[ 6062.711960][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6062.711960][   T73]      addrconf_add_dev+0xe2/0x170
[ 6062.711960][   T73]      inet6_addr_add+0x12f/0xa40
[ 6062.711960][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6062.711960][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6062.711960][   T73]      netlink_rcv_skb+0x130/0x360
[ 6062.711960][   T73]      netlink_unicast+0x449/0x710
[ 6062.711960][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6062.711960][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6062.711960][   T73]      ___sys_sendmsg+0xee/0x170
[ 6062.711960][   T73]      __sys_sendmsg+0xcd/0x170
[ 6062.711960][   T73]      do_syscall_64+0xc6/0x1e0
[ 6062.711960][   T73] 
[ 6062.714146][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6062.714146][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6062.714146][   T73]      ipv6_find_idev+0x102/0x170
[ 6062.714146][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6062.714146][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6062.714146][   T73]      netlink_rcv_skb+0x130/0x360
[ 6062.714146][   T73]      netlink_unicast+0x449/0x710
[ 6062.714146][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6062.714146][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6062.714146][   T73]      ___sys_sendmsg+0xee/0x170
[ 6062.714146][   T73]      __sys_sendmsg+0xcd/0x170
[ 6062.714146][   T73]      do_syscall_64+0xc6/0x1e0
[ 6062.714146][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6062.714146][   T73] 
[ 6062.715851][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6062.715851][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6062.715851][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6062.715851][   T73]      ipv6_find_idev+0x102/0x170
[ 6062.715851][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6062.715851][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6062.715851][   T73]      netlink_rcv_skb+0x130/0x360
[ 6062.715851][   T73]      netlink_unicast+0x449/0x710
[ 6062.715851][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6062.715851][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6062.715851][   T73]      ___sys_sendmsg+0xee/0x170
[ 6062.715851][   T73]      __sys_sendmsg+0xcd/0x170
[ 6062.715851][   T73]      do_syscall_64+0xc6/0x1e0
[ 6062.715851][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6062.715851][   T73] 
[ 6062.717738][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6062.718033][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6062.718033][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6062.718033][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6062.718033][   T73]      fib6_nh_init+0xa22/0x1580
[ 6062.718033][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6062.718033][   T73]      ip6_route_add+0x1c/0x140
[ 6062.718033][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6062.718033][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6062.718033][   T73]      netlink_rcv_skb+0x130/0x360
[ 6062.718033][   T73]      netlink_unicast+0x449/0x710
[ 6062.718033][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6062.718033][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6062.718033][   T73]      ___sys_sendmsg+0xee/0x170
[ 6062.718033][   T73]      __sys_sendmsg+0xcd/0x170
[ 6062.718033][   T73]      do_syscall_64+0xc6/0x1e0
[ 6062.718033][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6062.718033][   T73] 
[ 6062.720305][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6062.720305][   T73]      dst_init+0x84/0x4a0
[ 6062.720305][   T73]      dst_alloc+0x97/0x150
[ 6062.720305][   T73]      ip6_dst_alloc+0x23/0x90
[ 6062.720305][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6062.720305][   T73]      ip6_pol_route+0x56f/0x840
[ 6062.720305][   T73]      fib6_rule_lookup+0x456/0x630
[ 6062.720305][   T73]      ip6_route_input+0x59c/0xa50
[ 6062.720305][   T73]      ipv6_rcv+0x397/0x810
[ 6062.720305][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6062.720305][   T73]      process_backlog+0x101/0x620
[ 6062.720305][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6062.720305][   T73]      net_rx_action+0x495/0xbe0
[ 6062.720305][   T73]      __do_softirq+0x1b5/0x7f6
[ 6062.720305][   T73] 
[ 6062.722359][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6062.722359][   T73]      netdev_get_by_index+0x5e/0x80
[ 6062.722359][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6062.722359][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6062.722359][   T73]      ip6_route_add+0x1c/0x140
[ 6062.722359][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6062.722359][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6062.722359][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6062.722359][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6062.722359][   T73]      netlink_rcv_skb+0x130/0x360
[ 6062.722359][   T73]      netlink_unicast+0x449/0x710
[ 6062.722359][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6062.722359][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6062.722359][   T73]      ___sys_sendmsg+0xee/0x170
[ 6062.722359][   T73]      __sys_sendmsg+0xcd/0x170
[ 6062.722359][   T73]      do_syscall_64+0xc6/0x1e0
[ 6062.722359][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6062.722359][   T73] 
[ 6062.724825][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6062.724825][   T73]      netdev_get_by_index+0x5e/0x80
[ 6062.724825][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6062.724825][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6062.724825][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6062.724825][   T73]      ipv6_add_addr+0x411/0x2000
[ 6062.724825][   T73]      inet6_addr_add+0x30e/0xa40
[ 6062.724825][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6062.724825][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6062.724825][   T73]      netlink_rcv_skb+0x130/0x360
[ 6062.724825][   T73]      netlink_unicast+0x449/0x710
[ 6062.724825][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6062.724825][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6062.724825][   T73]      ___sys_sendmsg+0xee/0x170
[ 6062.724825][   T73]      __sys_sendmsg+0xcd/0x170
[ 6062.724825][   T73]      do_syscall_64+0xc6/0x1e0
[ 6062.724825][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6062.724825][   T73] 
[ 6062.727244][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6062.727244][   T73]      netdev_get_by_index+0x5e/0x80
[ 6062.727244][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6062.727244][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6062.727244][   T73]      ip6_route_add+0x1c/0x140
[ 6062.727244][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6062.727244][   T73]      addrconf_add_dev+0xe2/0x170
[ 6062.727244][   T73]      inet6_addr_add+0x12f/0xa40
[ 6062.727244][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6062.727244][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6062.727244][   T73]      netlink_rcv_skb+0x130/0x360
[ 6062.727244][   T73]      netlink_unicast+0x449/0x710
[ 6062.727244][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6062.727244][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6062.727244][   T73]      ___sys_sendmsg+0xee/0x170
[ 6062.727244][   T73]      __sys_sendmsg+0xcd/0x170
[ 6062.727244][   T73]      do_syscall_64+0xc6/0x1e0
[ 6062.727244][   T73] 
[ 6062.729656][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6062.729656][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6062.729656][   T73]      ipv6_find_idev+0x102/0x170
[ 6062.729656][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6062.729656][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6062.729656][   T73]      netlink_rcv_skb+0x130/0x360
[ 6062.729656][   T73]      netlink_unicast+0x449/0x710
[ 6062.729656][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6062.729656][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6062.729656][   T73]      ___sys_sendmsg+0xee/0x170
[ 6062.729656][   T73]      __sys_sendmsg+0xcd/0x170
[ 6062.729656][   T73]      do_syscall_64+0xc6/0x1e0
[ 6062.729656][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6062.729656][   T73] 
[ 6062.731595][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6062.731595][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6062.731595][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6062.731595][   T73]      ipv6_find_idev+0x102/0x170
[ 6062.731595][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6062.731595][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6062.731595][   T73]      netlink_rcv_skb+0x130/0x360
[ 6062.731595][   T73]      netlink_unicast+0x449/0x710
[ 6062.731595][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6062.731595][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6062.731595][   T73]      ___sys_sendmsg+0xee/0x170
[ 6062.731595][   T73]      __sys_sendmsg+0xcd/0x170
[ 6062.731595][   T73]      do_syscall_64+0xc6/0x1e0
[ 6062.731595][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6062.731595][   T73] 
[ 6062.733658][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6062.734038][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6062.734038][   T73]      netdev_get_by_index+0x5e/0x80
[ 6062.734038][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6062.734038][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6062.734038][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6062.734038][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6062.734038][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6062.734038][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6062.734038][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6062.734038][   T73]      addrconf_dad_begin+0x310/0x670
[ 6062.734038][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6062.734038][   T73]      process_one_work+0x84d/0x18a0
[ 6062.734038][   T73]      worker_thread+0x587/0xd30
[ 6062.734038][   T73]      kthread+0x28a/0x350
[ 6062.734038][   T73]      ret_from_fork+0x31/0x70
[ 6062.734038][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6062.734038][   T73] 
[ 6062.736261][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6062.736261][   T73]      netdev_get_by_index+0x5e/0x80
[ 6062.736261][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6062.736261][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6062.736261][   T73]      ip6_route_add+0x1c/0x140
[ 6062.736261][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6062.736261][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6062.736261][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6062.736261][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6062.736261][   T73]      netlink_rcv_skb+0x130/0x360
[ 6062.736261][   T73]      netlink_unicast+0x449/0x710
[ 6062.736261][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6062.736261][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6062.736261][   T73]      ___sys_sendmsg+0xee/0x170
[ 6062.736261][   T73]      __sys_sendmsg+0xcd/0x170
[ 6062.736261][   T73]      do_syscall_64+0xc6/0x1e0
[ 6062.736261][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6062.736261][   T73] 
[ 6062.738736][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6062.738736][   T73]      netdev_get_by_index+0x5e/0x80
[ 6062.738736][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6062.738736][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6062.738736][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6062.738736][   T73]      ipv6_add_addr+0x411/0x2000
[ 6062.738736][   T73]      inet6_addr_add+0x30e/0xa40
[ 6062.738736][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6062.738736][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6062.738736][   T73]      netlink_rcv_skb+0x130/0x360
[ 6062.738736][   T73]      netlink_unicast+0x449/0x710
[ 6062.738736][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6062.738736][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6062.738736][   T73]      ___sys_sendmsg+0xee/0x170
[ 6062.738736][   T73]      __sys_sendmsg+0xcd/0x170
[ 6062.738736][   T73]      do_syscall_64+0xc6/0x1e0
[ 6062.738736][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6062.738736][   T73] 
[ 6062.741197][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6062.741197][   T73]      netdev_get_by_index+0x5e/0x80
[ 6062.741197][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6062.741197][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6062.741197][   T73]      ip6_route_add+0x1c/0x140
[ 6062.741197][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6062.741197][   T73]      addrconf_add_dev+0xe2/0x170
[ 6062.741197][   T73]      inet6_addr_add+0x12f/0xa40
[ 6062.741197][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6062.741197][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6062.741197][   T73]      netlink_rcv_skb+0x130/0x360
[ 6062.741197][   T73]      netlink_unicast+0x449/0x710
[ 6062.741197][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6062.741197][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6062.741197][   T73]      ___sys_sendmsg+0xee/0x170
[ 6062.741197][   T73]      __sys_sendmsg+0xcd/0x170
[ 6062.741197][   T73]      do_syscall_64+0xc6/0x1e0
[ 6062.741197][   T73] 
[ 6062.743692][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6062.743692][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6062.743692][   T73]      ipv6_find_idev+0x102/0x170
[ 6062.743692][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6062.743692][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6062.743692][   T73]      netlink_rcv_skb+0x130/0x360
[ 6062.743692][   T73]      netlink_unicast+0x449/0x710
[ 6062.743692][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6062.743692][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6062.743692][   T73]      ___sys_sendmsg+0xee/0x170
[ 6062.743692][   T73]      __sys_sendmsg+0xcd/0x170
[ 6062.743692][   T73]      do_syscall_64+0xc6/0x1e0
[ 6062.743692][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6062.743692][   T73] 
[ 6062.745597][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6062.745597][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6062.745597][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6062.745597][   T73]      ipv6_find_idev+0x102/0x170
[ 6062.745597][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6062.745597][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6062.745597][   T73]      netlink_rcv_skb+0x130/0x360
[ 6062.745597][   T73]      netlink_unicast+0x449/0x710
[ 6062.745597][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6062.745597][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6062.745597][   T73]      ___sys_sendmsg+0xee/0x170
[ 6062.745597][   T73]      __sys_sendmsg+0xcd/0x170
[ 6062.745597][   T73]      do_syscall_64+0xc6/0x1e0
[ 6062.745597][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6062.745597][   T73] 
[ 6072.999759][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6073.000257][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6073.000257][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6073.000257][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6073.000257][   T73]      fib6_nh_init+0xa22/0x1580
[ 6073.000257][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6073.000257][   T73]      ip6_route_add+0x1c/0x140
[ 6073.000257][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6073.000257][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6073.000257][   T73]      netlink_rcv_skb+0x130/0x360
[ 6073.000257][   T73]      netlink_unicast+0x449/0x710
[ 6073.000257][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6073.000257][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6073.000257][   T73]      ___sys_sendmsg+0xee/0x170
[ 6073.000257][   T73]      __sys_sendmsg+0xcd/0x170
[ 6073.000257][   T73]      do_syscall_64+0xc6/0x1e0
[ 6073.000257][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6073.000257][   T73] 
[ 6073.002361][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6073.002361][   T73]      dst_init+0x84/0x4a0
[ 6073.002361][   T73]      dst_alloc+0x97/0x150
[ 6073.002361][   T73]      ip6_dst_alloc+0x23/0x90
[ 6073.002361][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6073.002361][   T73]      ip6_pol_route+0x56f/0x840
[ 6073.002361][   T73]      fib6_rule_lookup+0x456/0x630
[ 6073.002361][   T73]      ip6_route_input+0x59c/0xa50
[ 6073.002361][   T73]      ipv6_rcv+0x397/0x810
[ 6073.002361][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6073.002361][   T73]      process_backlog+0x101/0x620
[ 6073.002361][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6073.002361][   T73]      net_rx_action+0x495/0xbe0
[ 6073.002361][   T73]      __do_softirq+0x1b5/0x7f6
[ 6073.002361][   T73] 
[ 6073.004186][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6073.004186][   T73]      netdev_get_by_index+0x5e/0x80
[ 6073.004186][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6073.004186][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6073.004186][   T73]      ip6_route_add+0x1c/0x140
[ 6073.004186][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6073.004186][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6073.004186][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6073.004186][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6073.004186][   T73]      netlink_rcv_skb+0x130/0x360
[ 6073.004186][   T73]      netlink_unicast+0x449/0x710
[ 6073.004186][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6073.004186][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6073.004186][   T73]      ___sys_sendmsg+0xee/0x170
[ 6073.004186][   T73]      __sys_sendmsg+0xcd/0x170
[ 6073.004186][   T73]      do_syscall_64+0xc6/0x1e0
[ 6073.004186][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6073.004186][   T73] 
[ 6073.006422][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6073.006422][   T73]      netdev_get_by_index+0x5e/0x80
[ 6073.006422][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6073.006422][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6073.006422][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6073.006422][   T73]      ipv6_add_addr+0x411/0x2000
[ 6073.006422][   T73]      inet6_addr_add+0x30e/0xa40
[ 6073.006422][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6073.006422][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6073.006422][   T73]      netlink_rcv_skb+0x130/0x360
[ 6073.006422][   T73]      netlink_unicast+0x449/0x710
[ 6073.006422][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6073.006422][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6073.006422][   T73]      ___sys_sendmsg+0xee/0x170
[ 6073.006422][   T73]      __sys_sendmsg+0xcd/0x170
[ 6073.006422][   T73]      do_syscall_64+0xc6/0x1e0
[ 6073.006422][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6073.006422][   T73] 
[ 6073.008659][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6073.008659][   T73]      netdev_get_by_index+0x5e/0x80
[ 6073.008659][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6073.008659][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6073.008659][   T73]      ip6_route_add+0x1c/0x140
[ 6073.008659][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6073.008659][   T73]      addrconf_add_dev+0xe2/0x170
[ 6073.008659][   T73]      inet6_addr_add+0x12f/0xa40
[ 6073.008659][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6073.008659][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6073.008659][   T73]      netlink_rcv_skb+0x130/0x360
[ 6073.008659][   T73]      netlink_unicast+0x449/0x710
[ 6073.008659][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6073.008659][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6073.008659][   T73]      ___sys_sendmsg+0xee/0x170
[ 6073.008659][   T73]      __sys_sendmsg+0xcd/0x170
[ 6073.008659][   T73]      do_syscall_64+0xc6/0x1e0
[ 6073.008659][   T73] 
[ 6073.010844][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6073.010844][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6073.010844][   T73]      ipv6_find_idev+0x102/0x170
[ 6073.010844][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6073.010844][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6073.010844][   T73]      netlink_rcv_skb+0x130/0x360
[ 6073.010844][   T73]      netlink_unicast+0x449/0x710
[ 6073.010844][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6073.010844][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6073.010844][   T73]      ___sys_sendmsg+0xee/0x170
[ 6073.010844][   T73]      __sys_sendmsg+0xcd/0x170
[ 6073.010844][   T73]      do_syscall_64+0xc6/0x1e0
[ 6073.010844][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6073.010844][   T73] 
[ 6073.012562][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6073.012562][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6073.012562][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6073.012562][   T73]      ipv6_find_idev+0x102/0x170
[ 6073.012562][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6073.012562][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6073.012562][   T73]      netlink_rcv_skb+0x130/0x360
[ 6073.012562][   T73]      netlink_unicast+0x449/0x710
[ 6073.012562][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6073.012562][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6073.012562][   T73]      ___sys_sendmsg+0xee/0x170
[ 6073.012562][   T73]      __sys_sendmsg+0xcd/0x170
[ 6073.012562][   T73]      do_syscall_64+0xc6/0x1e0
[ 6073.012562][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6073.012562][   T73] 
[ 6073.014444][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6073.014757][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6073.014757][   T73]      netdev_get_by_index+0x5e/0x80
[ 6073.014757][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6073.014757][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6073.014757][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6073.014757][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6073.014757][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6073.014757][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6073.014757][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6073.014757][   T73]      addrconf_dad_begin+0x310/0x670
[ 6073.014757][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6073.014757][   T73]      process_one_work+0x84d/0x18a0
[ 6073.014757][   T73]      worker_thread+0x587/0xd30
[ 6073.014757][   T73]      kthread+0x28a/0x350
[ 6073.014757][   T73]      ret_from_fork+0x31/0x70
[ 6073.014757][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6073.014757][   T73] 
[ 6073.016902][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6073.016902][   T73]      netdev_get_by_index+0x5e/0x80
[ 6073.016902][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6073.016902][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6073.016902][   T73]      ip6_route_add+0x1c/0x140
[ 6073.016902][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6073.016902][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6073.016902][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6073.016902][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6073.016902][   T73]      netlink_rcv_skb+0x130/0x360
[ 6073.016902][   T73]      netlink_unicast+0x449/0x710
[ 6073.016902][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6073.016902][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6073.016902][   T73]      ___sys_sendmsg+0xee/0x170
[ 6073.016902][   T73]      __sys_sendmsg+0xcd/0x170
[ 6073.016902][   T73]      do_syscall_64+0xc6/0x1e0
[ 6073.016902][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6073.016902][   T73] 
[ 6073.090894][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6073.090894][   T73]      netdev_get_by_index+0x5e/0x80
[ 6073.090894][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6073.090894][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6073.090894][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6073.090894][   T73]      ipv6_add_addr+0x411/0x2000
[ 6073.090894][   T73]      inet6_addr_add+0x30e/0xa40
[ 6073.090894][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6073.090894][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6073.090894][   T73]      netlink_rcv_skb+0x130/0x360
[ 6073.090894][   T73]      netlink_unicast+0x449/0x710
[ 6073.090894][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6073.090894][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6073.090894][   T73]      ___sys_sendmsg+0xee/0x170
[ 6073.090894][   T73]      __sys_sendmsg+0xcd/0x170
[ 6073.090894][   T73]      do_syscall_64+0xc6/0x1e0
[ 6073.090894][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6073.090894][   T73] 
[ 6073.093140][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6073.093140][   T73]      netdev_get_by_index+0x5e/0x80
[ 6073.093140][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6073.093140][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6073.093140][   T73]      ip6_route_add+0x1c/0x140
[ 6073.093140][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6073.093140][   T73]      addrconf_add_dev+0xe2/0x170
[ 6073.093140][   T73]      inet6_addr_add+0x12f/0xa40
[ 6073.093140][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6073.093140][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6073.093140][   T73]      netlink_rcv_skb+0x130/0x360
[ 6073.093140][   T73]      netlink_unicast+0x449/0x710
[ 6073.093140][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6073.093140][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6073.093140][   T73]      ___sys_sendmsg+0xee/0x170
[ 6073.093140][   T73]      __sys_sendmsg+0xcd/0x170
[ 6073.093140][   T73]      do_syscall_64+0xc6/0x1e0
[ 6073.093140][   T73] 
[ 6073.095355][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6073.095355][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6073.095355][   T73]      ipv6_find_idev+0x102/0x170
[ 6073.095355][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6073.095355][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6073.095355][   T73]      netlink_rcv_skb+0x130/0x360
[ 6073.095355][   T73]      netlink_unicast+0x449/0x710
[ 6073.095355][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6073.095355][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6073.095355][   T73]      ___sys_sendmsg+0xee/0x170
[ 6073.095355][   T73]      __sys_sendmsg+0xcd/0x170
[ 6073.095355][   T73]      do_syscall_64+0xc6/0x1e0
[ 6073.095355][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6073.095355][   T73] 
[ 6073.097079][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6073.097079][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6073.097079][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6073.097079][   T73]      ipv6_find_idev+0x102/0x170
[ 6073.097079][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6073.097079][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6073.097079][   T73]      netlink_rcv_skb+0x130/0x360
[ 6073.097079][   T73]      netlink_unicast+0x449/0x710
[ 6073.097079][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6073.097079][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6073.097079][   T73]      ___sys_sendmsg+0xee/0x170
[ 6073.097079][   T73]      __sys_sendmsg+0xcd/0x170
[ 6073.097079][   T73]      do_syscall_64+0xc6/0x1e0
[ 6073.097079][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6073.097079][   T73] 
[ 6073.098989][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6073.099285][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6073.099285][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6073.099285][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6073.099285][   T73]      fib6_nh_init+0xa22/0x1580
[ 6073.099285][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6073.099285][   T73]      ip6_route_add+0x1c/0x140
[ 6073.099285][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6073.099285][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6073.099285][   T73]      netlink_rcv_skb+0x130/0x360
[ 6073.099285][   T73]      netlink_unicast+0x449/0x710
[ 6073.099285][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6073.099285][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6073.099285][   T73]      ___sys_sendmsg+0xee/0x170
[ 6073.099285][   T73]      __sys_sendmsg+0xcd/0x170
[ 6073.099285][   T73]      do_syscall_64+0xc6/0x1e0
[ 6073.099285][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6073.099285][   T73] 
[ 6073.101561][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6073.101561][   T73]      dst_init+0x84/0x4a0
[ 6073.101561][   T73]      dst_alloc+0x97/0x150
[ 6073.101561][   T73]      ip6_dst_alloc+0x23/0x90
[ 6073.101561][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6073.101561][   T73]      ip6_pol_route+0x56f/0x840
[ 6073.101561][   T73]      fib6_rule_lookup+0x456/0x630
[ 6073.101561][   T73]      ip6_route_input+0x59c/0xa50
[ 6073.101561][   T73]      ipv6_rcv+0x397/0x810
[ 6073.101561][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6073.101561][   T73]      process_backlog+0x101/0x620
[ 6073.101561][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6073.101561][   T73]      net_rx_action+0x495/0xbe0
[ 6073.101561][   T73]      __do_softirq+0x1b5/0x7f6
[ 6073.101561][   T73] 
[ 6073.103539][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6073.103539][   T73]      netdev_get_by_index+0x5e/0x80
[ 6073.103539][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6073.103539][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6073.103539][   T73]      ip6_route_add+0x1c/0x140
[ 6073.103539][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6073.103539][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6073.103539][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6073.103539][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6073.103539][   T73]      netlink_rcv_skb+0x130/0x360
[ 6073.103539][   T73]      netlink_unicast+0x449/0x710
[ 6073.103539][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6073.103539][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6073.103539][   T73]      ___sys_sendmsg+0xee/0x170
[ 6073.103539][   T73]      __sys_sendmsg+0xcd/0x170
[ 6073.103539][   T73]      do_syscall_64+0xc6/0x1e0
[ 6073.103539][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6073.103539][   T73] 
[ 6073.105982][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6073.105982][   T73]      netdev_get_by_index+0x5e/0x80
[ 6073.105982][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6073.105982][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6073.105982][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6073.105982][   T73]      ipv6_add_addr+0x411/0x2000
[ 6073.105982][   T73]      inet6_addr_add+0x30e/0xa40
[ 6073.105982][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6073.105982][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6073.105982][   T73]      netlink_rcv_skb+0x130/0x360
[ 6073.105982][   T73]      netlink_unicast+0x449/0x710
[ 6073.105982][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6073.105982][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6073.105982][   T73]      ___sys_sendmsg+0xee/0x170
[ 6073.105982][   T73]      __sys_sendmsg+0xcd/0x170
[ 6073.105982][   T73]      do_syscall_64+0xc6/0x1e0
[ 6073.105982][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6073.105982][   T73] 
[ 6073.108452][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6073.108452][   T73]      netdev_get_by_index+0x5e/0x80
[ 6073.108452][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6073.108452][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6073.108452][   T73]      ip6_route_add+0x1c/0x140
[ 6073.108452][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6073.108452][   T73]      addrconf_add_dev+0xe2/0x170
[ 6073.108452][   T73]      inet6_addr_add+0x12f/0xa40
[ 6073.108452][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6073.108452][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6073.108452][   T73]      netlink_rcv_skb+0x130/0x360
[ 6073.108452][   T73]      netlink_unicast+0x449/0x710
[ 6073.108452][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6073.108452][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6073.108452][   T73]      ___sys_sendmsg+0xee/0x170
[ 6073.108452][   T73]      __sys_sendmsg+0xcd/0x170
[ 6073.108452][   T73]      do_syscall_64+0xc6/0x1e0
[ 6073.108452][   T73] 
[ 6073.110867][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6073.110867][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6073.110867][   T73]      ipv6_find_idev+0x102/0x170
[ 6073.110867][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6073.110867][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6073.110867][   T73]      netlink_rcv_skb+0x130/0x360
[ 6073.110867][   T73]      netlink_unicast+0x449/0x710
[ 6073.110867][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6073.110867][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6073.110867][   T73]      ___sys_sendmsg+0xee/0x170
[ 6073.110867][   T73]      __sys_sendmsg+0xcd/0x170
[ 6073.110867][   T73]      do_syscall_64+0xc6/0x1e0
[ 6073.110867][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6073.110867][   T73] 
[ 6073.112765][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6073.112765][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6073.112765][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6073.112765][   T73]      ipv6_find_idev+0x102/0x170
[ 6073.112765][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6073.112765][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6073.112765][   T73]      netlink_rcv_skb+0x130/0x360
[ 6073.112765][   T73]      netlink_unicast+0x449/0x710
[ 6073.112765][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6073.112765][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6073.112765][   T73]      ___sys_sendmsg+0xee/0x170
[ 6073.112765][   T73]      __sys_sendmsg+0xcd/0x170
[ 6073.112765][   T73]      do_syscall_64+0xc6/0x1e0
[ 6073.112765][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6073.112765][   T73] 
[ 6073.114809][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6073.115177][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6073.115177][   T73]      netdev_get_by_index+0x5e/0x80
[ 6073.115177][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6073.115177][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6073.115177][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6073.115177][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6073.115177][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6073.115177][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6073.115177][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6073.115177][   T73]      addrconf_dad_begin+0x310/0x670
[ 6073.115177][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6073.115177][   T73]      process_one_work+0x84d/0x18a0
[ 6073.115177][   T73]      worker_thread+0x587/0xd30
[ 6073.115177][   T73]      kthread+0x28a/0x350
[ 6073.115177][   T73]      ret_from_fork+0x31/0x70
[ 6073.115177][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6073.115177][   T73] 
[ 6073.117435][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6073.117435][   T73]      netdev_get_by_index+0x5e/0x80
[ 6073.117435][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6073.117435][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6073.117435][   T73]      ip6_route_add+0x1c/0x140
[ 6073.117435][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6073.117435][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6073.117435][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6073.117435][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6073.117435][   T73]      netlink_rcv_skb+0x130/0x360
[ 6073.117435][   T73]      netlink_unicast+0x449/0x710
[ 6073.117435][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6073.117435][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6073.117435][   T73]      ___sys_sendmsg+0xee/0x170
[ 6073.117435][   T73]      __sys_sendmsg+0xcd/0x170
[ 6073.117435][   T73]      do_syscall_64+0xc6/0x1e0
[ 6073.117435][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6073.117435][   T73] 
[ 6073.119969][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6073.119969][   T73]      netdev_get_by_index+0x5e/0x80
[ 6073.119969][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6073.119969][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6073.119969][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6073.119969][   T73]      ipv6_add_addr+0x411/0x2000
[ 6073.119969][   T73]      inet6_addr_add+0x30e/0xa40
[ 6073.119969][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6073.119969][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6073.119969][   T73]      netlink_rcv_skb+0x130/0x360
[ 6073.119969][   T73]      netlink_unicast+0x449/0x710
[ 6073.119969][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6073.119969][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6073.119969][   T73]      ___sys_sendmsg+0xee/0x170
[ 6073.119969][   T73]      __sys_sendmsg+0xcd/0x170
[ 6073.119969][   T73]      do_syscall_64+0xc6/0x1e0
[ 6073.119969][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6073.119969][   T73] 
[ 6073.122440][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6073.122440][   T73]      netdev_get_by_index+0x5e/0x80
[ 6073.122440][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6073.122440][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6073.122440][   T73]      ip6_route_add+0x1c/0x140
[ 6073.122440][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6073.122440][   T73]      addrconf_add_dev+0xe2/0x170
[ 6073.122440][   T73]      inet6_addr_add+0x12f/0xa40
[ 6073.122440][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6073.122440][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6073.122440][   T73]      netlink_rcv_skb+0x130/0x360
[ 6073.122440][   T73]      netlink_unicast+0x449/0x710
[ 6073.122440][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6073.122440][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6073.122440][   T73]      ___sys_sendmsg+0xee/0x170
[ 6073.122440][   T73]      __sys_sendmsg+0xcd/0x170
[ 6073.122440][   T73]      do_syscall_64+0xc6/0x1e0
[ 6073.122440][   T73] 
[ 6073.125433][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6073.125433][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6073.125433][   T73]      ipv6_find_idev+0x102/0x170
[ 6073.125433][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6073.125433][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6073.125433][   T73]      netlink_rcv_skb+0x130/0x360
[ 6073.125433][   T73]      netlink_unicast+0x449/0x710
[ 6073.125433][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6073.125433][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6073.125433][   T73]      ___sys_sendmsg+0xee/0x170
[ 6073.125433][   T73]      __sys_sendmsg+0xcd/0x170
[ 6073.125433][   T73]      do_syscall_64+0xc6/0x1e0
[ 6073.125433][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6073.125433][   T73] 
[ 6073.127318][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6073.127318][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6073.127318][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6073.127318][   T73]      ipv6_find_idev+0x102/0x170
[ 6073.127318][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6073.127318][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6073.127318][   T73]      netlink_rcv_skb+0x130/0x360
[ 6073.127318][   T73]      netlink_unicast+0x449/0x710
[ 6073.127318][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6073.127318][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6073.127318][   T73]      ___sys_sendmsg+0xee/0x170
[ 6073.127318][   T73]      __sys_sendmsg+0xcd/0x170
[ 6073.127318][   T73]      do_syscall_64+0xc6/0x1e0
[ 6073.127318][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6073.127318][   T73] 
[ 6083.255750][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6083.256269][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6083.256269][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6083.256269][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6083.256269][   T73]      fib6_nh_init+0xa22/0x1580
[ 6083.256269][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6083.256269][   T73]      ip6_route_add+0x1c/0x140
[ 6083.256269][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6083.256269][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6083.256269][   T73]      netlink_rcv_skb+0x130/0x360
[ 6083.256269][   T73]      netlink_unicast+0x449/0x710
[ 6083.256269][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6083.256269][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6083.256269][   T73]      ___sys_sendmsg+0xee/0x170
[ 6083.256269][   T73]      __sys_sendmsg+0xcd/0x170
[ 6083.256269][   T73]      do_syscall_64+0xc6/0x1e0
[ 6083.256269][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6083.256269][   T73] 
[ 6083.258495][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6083.258495][   T73]      dst_init+0x84/0x4a0
[ 6083.258495][   T73]      dst_alloc+0x97/0x150
[ 6083.258495][   T73]      ip6_dst_alloc+0x23/0x90
[ 6083.258495][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6083.258495][   T73]      ip6_pol_route+0x56f/0x840
[ 6083.258495][   T73]      fib6_rule_lookup+0x456/0x630
[ 6083.258495][   T73]      ip6_route_input+0x59c/0xa50
[ 6083.258495][   T73]      ipv6_rcv+0x397/0x810
[ 6083.258495][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6083.258495][   T73]      process_backlog+0x101/0x620
[ 6083.258495][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6083.258495][   T73]      net_rx_action+0x495/0xbe0
[ 6083.258495][   T73]      __do_softirq+0x1b5/0x7f6
[ 6083.258495][   T73] 
[ 6083.260325][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6083.260325][   T73]      netdev_get_by_index+0x5e/0x80
[ 6083.260325][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6083.260325][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6083.260325][   T73]      ip6_route_add+0x1c/0x140
[ 6083.260325][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6083.260325][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6083.260325][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6083.260325][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6083.260325][   T73]      netlink_rcv_skb+0x130/0x360
[ 6083.260325][   T73]      netlink_unicast+0x449/0x710
[ 6083.260325][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6083.260325][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6083.260325][   T73]      ___sys_sendmsg+0xee/0x170
[ 6083.260325][   T73]      __sys_sendmsg+0xcd/0x170
[ 6083.260325][   T73]      do_syscall_64+0xc6/0x1e0
[ 6083.260325][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6083.260325][   T73] 
[ 6083.262832][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6083.262832][   T73]      netdev_get_by_index+0x5e/0x80
[ 6083.262832][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6083.262832][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6083.262832][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6083.262832][   T73]      ipv6_add_addr+0x411/0x2000
[ 6083.262832][   T73]      inet6_addr_add+0x30e/0xa40
[ 6083.262832][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6083.262832][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6083.262832][   T73]      netlink_rcv_skb+0x130/0x360
[ 6083.262832][   T73]      netlink_unicast+0x449/0x710
[ 6083.262832][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6083.262832][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6083.262832][   T73]      ___sys_sendmsg+0xee/0x170
[ 6083.262832][   T73]      __sys_sendmsg+0xcd/0x170
[ 6083.262832][   T73]      do_syscall_64+0xc6/0x1e0
[ 6083.262832][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6083.262832][   T73] 
[ 6083.265986][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6083.265986][   T73]      netdev_get_by_index+0x5e/0x80
[ 6083.265986][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6083.265986][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6083.265986][   T73]      ip6_route_add+0x1c/0x140
[ 6083.265986][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6083.265986][   T73]      addrconf_add_dev+0xe2/0x170
[ 6083.265986][   T73]      inet6_addr_add+0x12f/0xa40
[ 6083.265986][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6083.265986][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6083.265986][   T73]      netlink_rcv_skb+0x130/0x360
[ 6083.265986][   T73]      netlink_unicast+0x449/0x710
[ 6083.265986][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6083.265986][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6083.265986][   T73]      ___sys_sendmsg+0xee/0x170
[ 6083.265986][   T73]      __sys_sendmsg+0xcd/0x170
[ 6083.265986][   T73]      do_syscall_64+0xc6/0x1e0
[ 6083.265986][   T73] 
[ 6083.269416][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6083.269416][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6083.269416][   T73]      ipv6_find_idev+0x102/0x170
[ 6083.269416][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6083.269416][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6083.269416][   T73]      netlink_rcv_skb+0x130/0x360
[ 6083.269416][   T73]      netlink_unicast+0x449/0x710
[ 6083.269416][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6083.269416][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6083.269416][   T73]      ___sys_sendmsg+0xee/0x170
[ 6083.269416][   T73]      __sys_sendmsg+0xcd/0x170
[ 6083.269416][   T73]      do_syscall_64+0xc6/0x1e0
[ 6083.269416][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6083.269416][   T73] 
[ 6083.271990][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6083.271990][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6083.271990][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6083.271990][   T73]      ipv6_find_idev+0x102/0x170
[ 6083.271990][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6083.271990][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6083.271990][   T73]      netlink_rcv_skb+0x130/0x360
[ 6083.271990][   T73]      netlink_unicast+0x449/0x710
[ 6083.271990][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6083.271990][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6083.271990][   T73]      ___sys_sendmsg+0xee/0x170
[ 6083.271990][   T73]      __sys_sendmsg+0xcd/0x170
[ 6083.271990][   T73]      do_syscall_64+0xc6/0x1e0
[ 6083.271990][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6083.271990][   T73] 
[ 6083.274769][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6083.275253][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6083.275253][   T73]      netdev_get_by_index+0x5e/0x80
[ 6083.275253][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6083.275253][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6083.275253][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6083.275253][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6083.275253][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6083.275253][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6083.275253][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6083.275253][   T73]      addrconf_dad_begin+0x310/0x670
[ 6083.275253][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6083.275253][   T73]      process_one_work+0x84d/0x18a0
[ 6083.275253][   T73]      worker_thread+0x587/0xd30
[ 6083.275253][   T73]      kthread+0x28a/0x350
[ 6083.275253][   T73]      ret_from_fork+0x31/0x70
[ 6083.275253][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6083.275253][   T73] 
[ 6083.281920][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6083.281920][   T73]      netdev_get_by_index+0x5e/0x80
[ 6083.281920][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6083.281920][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6083.281920][   T73]      ip6_route_add+0x1c/0x140
[ 6083.281920][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6083.281920][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6083.281920][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6083.281920][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6083.281920][   T73]      netlink_rcv_skb+0x130/0x360
[ 6083.281920][   T73]      netlink_unicast+0x449/0x710
[ 6083.281920][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6083.281920][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6083.281920][   T73]      ___sys_sendmsg+0xee/0x170
[ 6083.281920][   T73]      __sys_sendmsg+0xcd/0x170
[ 6083.281920][   T73]      do_syscall_64+0xc6/0x1e0
[ 6083.281920][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6083.281920][   T73] 
[ 6083.284945][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6083.284945][   T73]      netdev_get_by_index+0x5e/0x80
[ 6083.284945][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6083.284945][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6083.284945][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6083.284945][   T73]      ipv6_add_addr+0x411/0x2000
[ 6083.284945][   T73]      inet6_addr_add+0x30e/0xa40
[ 6083.284945][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6083.284945][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6083.284945][   T73]      netlink_rcv_skb+0x130/0x360
[ 6083.284945][   T73]      netlink_unicast+0x449/0x710
[ 6083.284945][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6083.284945][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6083.284945][   T73]      ___sys_sendmsg+0xee/0x170
[ 6083.284945][   T73]      __sys_sendmsg+0xcd/0x170
[ 6083.284945][   T73]      do_syscall_64+0xc6/0x1e0
[ 6083.284945][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6083.284945][   T73] 
[ 6083.288369][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6083.288369][   T73]      netdev_get_by_index+0x5e/0x80
[ 6083.288369][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6083.288369][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6083.288369][   T73]      ip6_route_add+0x1c/0x140
[ 6083.288369][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6083.288369][   T73]      addrconf_add_dev+0xe2/0x170
[ 6083.288369][   T73]      inet6_addr_add+0x12f/0xa40
[ 6083.288369][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6083.288369][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6083.288369][   T73]      netlink_rcv_skb+0x130/0x360
[ 6083.288369][   T73]      netlink_unicast+0x449/0x710
[ 6083.288369][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6083.288369][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6083.288369][   T73]      ___sys_sendmsg+0xee/0x170
[ 6083.288369][   T73]      __sys_sendmsg+0xcd/0x170
[ 6083.288369][   T73]      do_syscall_64+0xc6/0x1e0
[ 6083.288369][   T73] 
[ 6083.291691][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6083.291691][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6083.291691][   T73]      ipv6_find_idev+0x102/0x170
[ 6083.291691][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6083.291691][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6083.291691][   T73]      netlink_rcv_skb+0x130/0x360
[ 6083.291691][   T73]      netlink_unicast+0x449/0x710
[ 6083.291691][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6083.291691][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6083.291691][   T73]      ___sys_sendmsg+0xee/0x170
[ 6083.291691][   T73]      __sys_sendmsg+0xcd/0x170
[ 6083.291691][   T73]      do_syscall_64+0xc6/0x1e0
[ 6083.291691][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6083.291691][   T73] 
[ 6083.294154][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6083.294154][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6083.294154][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6083.294154][   T73]      ipv6_find_idev+0x102/0x170
[ 6083.294154][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6083.294154][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6083.294154][   T73]      netlink_rcv_skb+0x130/0x360
[ 6083.294154][   T73]      netlink_unicast+0x449/0x710
[ 6083.294154][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6083.294154][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6083.294154][   T73]      ___sys_sendmsg+0xee/0x170
[ 6083.294154][   T73]      __sys_sendmsg+0xcd/0x170
[ 6083.294154][   T73]      do_syscall_64+0xc6/0x1e0
[ 6083.294154][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6083.294154][   T73] 
[ 6083.297175][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6083.297675][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6083.297675][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6083.297675][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6083.297675][   T73]      fib6_nh_init+0xa22/0x1580
[ 6083.297675][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6083.297675][   T73]      ip6_route_add+0x1c/0x140
[ 6083.297675][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6083.297675][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6083.297675][   T73]      netlink_rcv_skb+0x130/0x360
[ 6083.297675][   T73]      netlink_unicast+0x449/0x710
[ 6083.297675][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6083.297675][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6083.297675][   T73]      ___sys_sendmsg+0xee/0x170
[ 6083.297675][   T73]      __sys_sendmsg+0xcd/0x170
[ 6083.297675][   T73]      do_syscall_64+0xc6/0x1e0
[ 6083.297675][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6083.297675][   T73] 
[ 6083.301065][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6083.301065][   T73]      dst_init+0x84/0x4a0
[ 6083.301065][   T73]      dst_alloc+0x97/0x150
[ 6083.301065][   T73]      ip6_dst_alloc+0x23/0x90
[ 6083.301065][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6083.301065][   T73]      ip6_pol_route+0x56f/0x840
[ 6083.301065][   T73]      fib6_rule_lookup+0x456/0x630
[ 6083.301065][   T73]      ip6_route_input+0x59c/0xa50
[ 6083.301065][   T73]      ipv6_rcv+0x397/0x810
[ 6083.301065][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6083.301065][   T73]      process_backlog+0x101/0x620
[ 6083.301065][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6083.301065][   T73]      net_rx_action+0x495/0xbe0
[ 6083.301065][   T73]      __do_softirq+0x1b5/0x7f6
[ 6083.301065][   T73] 
[ 6083.304291][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6083.304291][   T73]      netdev_get_by_index+0x5e/0x80
[ 6083.304291][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6083.304291][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6083.304291][   T73]      ip6_route_add+0x1c/0x140
[ 6083.304291][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6083.304291][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6083.304291][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6083.304291][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6083.304291][   T73]      netlink_rcv_skb+0x130/0x360
[ 6083.304291][   T73]      netlink_unicast+0x449/0x710
[ 6083.304291][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6083.304291][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6083.304291][   T73]      ___sys_sendmsg+0xee/0x170
[ 6083.304291][   T73]      __sys_sendmsg+0xcd/0x170
[ 6083.304291][   T73]      do_syscall_64+0xc6/0x1e0
[ 6083.304291][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6083.304291][   T73] 
[ 6083.308158][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6083.308158][   T73]      netdev_get_by_index+0x5e/0x80
[ 6083.308158][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6083.308158][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6083.308158][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6083.308158][   T73]      ipv6_add_addr+0x411/0x2000
[ 6083.308158][   T73]      inet6_addr_add+0x30e/0xa40
[ 6083.308158][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6083.308158][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6083.308158][   T73]      netlink_rcv_skb+0x130/0x360
[ 6083.308158][   T73]      netlink_unicast+0x449/0x710
[ 6083.308158][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6083.308158][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6083.308158][   T73]      ___sys_sendmsg+0xee/0x170
[ 6083.308158][   T73]      __sys_sendmsg+0xcd/0x170
[ 6083.308158][   T73]      do_syscall_64+0xc6/0x1e0
[ 6083.308158][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6083.308158][   T73] 
[ 6083.311835][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6083.311835][   T73]      netdev_get_by_index+0x5e/0x80
[ 6083.311835][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6083.311835][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6083.311835][   T73]      ip6_route_add+0x1c/0x140
[ 6083.311835][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6083.311835][   T73]      addrconf_add_dev+0xe2/0x170
[ 6083.311835][   T73]      inet6_addr_add+0x12f/0xa40
[ 6083.311835][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6083.311835][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6083.311835][   T73]      netlink_rcv_skb+0x130/0x360
[ 6083.311835][   T73]      netlink_unicast+0x449/0x710
[ 6083.311835][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6083.311835][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6083.311835][   T73]      ___sys_sendmsg+0xee/0x170
[ 6083.311835][   T73]      __sys_sendmsg+0xcd/0x170
[ 6083.311835][   T73]      do_syscall_64+0xc6/0x1e0
[ 6083.311835][   T73] 
[ 6083.315507][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6083.315507][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6083.315507][   T73]      ipv6_find_idev+0x102/0x170
[ 6083.315507][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6083.315507][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6083.315507][   T73]      netlink_rcv_skb+0x130/0x360
[ 6083.315507][   T73]      netlink_unicast+0x449/0x710
[ 6083.315507][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6083.315507][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6083.315507][   T73]      ___sys_sendmsg+0xee/0x170
[ 6083.315507][   T73]      __sys_sendmsg+0xcd/0x170
[ 6083.315507][   T73]      do_syscall_64+0xc6/0x1e0
[ 6083.315507][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6083.315507][   T73] 
[ 6083.318297][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6083.318297][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6083.318297][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6083.318297][   T73]      ipv6_find_idev+0x102/0x170
[ 6083.318297][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6083.318297][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6083.318297][   T73]      netlink_rcv_skb+0x130/0x360
[ 6083.318297][   T73]      netlink_unicast+0x449/0x710
[ 6083.318297][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6083.318297][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6083.318297][   T73]      ___sys_sendmsg+0xee/0x170
[ 6083.318297][   T73]      __sys_sendmsg+0xcd/0x170
[ 6083.318297][   T73]      do_syscall_64+0xc6/0x1e0
[ 6083.318297][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6083.318297][   T73] 
[ 6083.321629][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6083.323083][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6083.323083][   T73]      netdev_get_by_index+0x5e/0x80
[ 6083.323083][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6083.323083][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6083.323083][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6083.323083][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6083.323083][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6083.323083][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6083.323083][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6083.323083][   T73]      addrconf_dad_begin+0x310/0x670
[ 6083.323083][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6083.323083][   T73]      process_one_work+0x84d/0x18a0
[ 6083.323083][   T73]      worker_thread+0x587/0xd30
[ 6083.323083][   T73]      kthread+0x28a/0x350
[ 6083.323083][   T73]      ret_from_fork+0x31/0x70
[ 6083.323083][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6083.323083][   T73] 
[ 6083.326230][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6083.326230][   T73]      netdev_get_by_index+0x5e/0x80
[ 6083.326230][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6083.326230][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6083.326230][   T73]      ip6_route_add+0x1c/0x140
[ 6083.326230][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6083.326230][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6083.326230][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6083.326230][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6083.326230][   T73]      netlink_rcv_skb+0x130/0x360
[ 6083.326230][   T73]      netlink_unicast+0x449/0x710
[ 6083.326230][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6083.326230][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6083.326230][   T73]      ___sys_sendmsg+0xee/0x170
[ 6083.326230][   T73]      __sys_sendmsg+0xcd/0x170
[ 6083.326230][   T73]      do_syscall_64+0xc6/0x1e0
[ 6083.326230][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6083.326230][   T73] 
[ 6083.329872][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6083.329872][   T73]      netdev_get_by_index+0x5e/0x80
[ 6083.329872][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6083.329872][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6083.329872][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6083.329872][   T73]      ipv6_add_addr+0x411/0x2000
[ 6083.329872][   T73]      inet6_addr_add+0x30e/0xa40
[ 6083.329872][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6083.329872][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6083.329872][   T73]      netlink_rcv_skb+0x130/0x360
[ 6083.329872][   T73]      netlink_unicast+0x449/0x710
[ 6083.329872][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6083.329872][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6083.329872][   T73]      ___sys_sendmsg+0xee/0x170
[ 6083.329872][   T73]      __sys_sendmsg+0xcd/0x170
[ 6083.329872][   T73]      do_syscall_64+0xc6/0x1e0
[ 6083.329872][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6083.329872][   T73] 
[ 6083.333523][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6083.333523][   T73]      netdev_get_by_index+0x5e/0x80
[ 6083.333523][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6083.333523][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6083.333523][   T73]      ip6_route_add+0x1c/0x140
[ 6083.333523][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6083.333523][   T73]      addrconf_add_dev+0xe2/0x170
[ 6083.333523][   T73]      inet6_addr_add+0x12f/0xa40
[ 6083.333523][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6083.333523][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6083.333523][   T73]      netlink_rcv_skb+0x130/0x360
[ 6083.333523][   T73]      netlink_unicast+0x449/0x710
[ 6083.333523][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6083.333523][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6083.333523][   T73]      ___sys_sendmsg+0xee/0x170
[ 6083.333523][   T73]      __sys_sendmsg+0xcd/0x170
[ 6083.333523][   T73]      do_syscall_64+0xc6/0x1e0
[ 6083.333523][   T73] 
[ 6083.337311][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6083.337311][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6083.337311][   T73]      ipv6_find_idev+0x102/0x170
[ 6083.337311][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6083.337311][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6083.337311][   T73]      netlink_rcv_skb+0x130/0x360
[ 6083.337311][   T73]      netlink_unicast+0x449/0x710
[ 6083.337311][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6083.337311][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6083.337311][   T73]      ___sys_sendmsg+0xee/0x170
[ 6083.337311][   T73]      __sys_sendmsg+0xcd/0x170
[ 6083.337311][   T73]      do_syscall_64+0xc6/0x1e0
[ 6083.337311][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6083.337311][   T73] 
[ 6083.340314][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6083.340314][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6083.340314][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6083.340314][   T73]      ipv6_find_idev+0x102/0x170
[ 6083.340314][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6083.340314][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6083.340314][   T73]      netlink_rcv_skb+0x130/0x360
[ 6083.340314][   T73]      netlink_unicast+0x449/0x710
[ 6083.340314][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6083.340314][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6083.340314][   T73]      ___sys_sendmsg+0xee/0x170
[ 6083.340314][   T73]      __sys_sendmsg+0xcd/0x170
[ 6083.340314][   T73]      do_syscall_64+0xc6/0x1e0
[ 6083.340314][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6083.340314][   T73] 
[ 6093.391692][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6093.392194][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6093.392194][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6093.392194][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6093.392194][   T73]      fib6_nh_init+0xa22/0x1580
[ 6093.392194][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6093.392194][   T73]      ip6_route_add+0x1c/0x140
[ 6093.392194][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6093.392194][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6093.392194][   T73]      netlink_rcv_skb+0x130/0x360
[ 6093.392194][   T73]      netlink_unicast+0x449/0x710
[ 6093.392194][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6093.392194][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6093.392194][   T73]      ___sys_sendmsg+0xee/0x170
[ 6093.392194][   T73]      __sys_sendmsg+0xcd/0x170
[ 6093.392194][   T73]      do_syscall_64+0xc6/0x1e0
[ 6093.392194][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6093.392194][   T73] 
[ 6093.395194][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6093.395194][   T73]      dst_init+0x84/0x4a0
[ 6093.395194][   T73]      dst_alloc+0x97/0x150
[ 6093.395194][   T73]      ip6_dst_alloc+0x23/0x90
[ 6093.395194][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6093.395194][   T73]      ip6_pol_route+0x56f/0x840
[ 6093.395194][   T73]      fib6_rule_lookup+0x456/0x630
[ 6093.395194][   T73]      ip6_route_input+0x59c/0xa50
[ 6093.395194][   T73]      ipv6_rcv+0x397/0x810
[ 6093.395194][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6093.395194][   T73]      process_backlog+0x101/0x620
[ 6093.395194][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6093.395194][   T73]      net_rx_action+0x495/0xbe0
[ 6093.395194][   T73]      __do_softirq+0x1b5/0x7f6
[ 6093.395194][   T73] 
[ 6093.398207][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6093.398207][   T73]      netdev_get_by_index+0x5e/0x80
[ 6093.398207][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6093.398207][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6093.398207][   T73]      ip6_route_add+0x1c/0x140
[ 6093.398207][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6093.398207][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6093.398207][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6093.398207][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6093.398207][   T73]      netlink_rcv_skb+0x130/0x360
[ 6093.398207][   T73]      netlink_unicast+0x449/0x710
[ 6093.398207][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6093.398207][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6093.398207][   T73]      ___sys_sendmsg+0xee/0x170
[ 6093.398207][   T73]      __sys_sendmsg+0xcd/0x170
[ 6093.398207][   T73]      do_syscall_64+0xc6/0x1e0
[ 6093.398207][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6093.398207][   T73] 
[ 6093.401462][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6093.401462][   T73]      netdev_get_by_index+0x5e/0x80
[ 6093.401462][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6093.401462][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6093.401462][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6093.401462][   T73]      ipv6_add_addr+0x411/0x2000
[ 6093.401462][   T73]      inet6_addr_add+0x30e/0xa40
[ 6093.401462][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6093.401462][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6093.401462][   T73]      netlink_rcv_skb+0x130/0x360
[ 6093.401462][   T73]      netlink_unicast+0x449/0x710
[ 6093.401462][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6093.401462][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6093.401462][   T73]      ___sys_sendmsg+0xee/0x170
[ 6093.401462][   T73]      __sys_sendmsg+0xcd/0x170
[ 6093.401462][   T73]      do_syscall_64+0xc6/0x1e0
[ 6093.401462][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6093.401462][   T73] 
[ 6093.405112][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6093.405112][   T73]      netdev_get_by_index+0x5e/0x80
[ 6093.405112][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6093.405112][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6093.405112][   T73]      ip6_route_add+0x1c/0x140
[ 6093.405112][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6093.405112][   T73]      addrconf_add_dev+0xe2/0x170
[ 6093.405112][   T73]      inet6_addr_add+0x12f/0xa40
[ 6093.405112][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6093.405112][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6093.405112][   T73]      netlink_rcv_skb+0x130/0x360
[ 6093.405112][   T73]      netlink_unicast+0x449/0x710
[ 6093.405112][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6093.405112][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6093.405112][   T73]      ___sys_sendmsg+0xee/0x170
[ 6093.405112][   T73]      __sys_sendmsg+0xcd/0x170
[ 6093.405112][   T73]      do_syscall_64+0xc6/0x1e0
[ 6093.405112][   T73] 
[ 6093.408311][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6093.408311][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6093.408311][   T73]      ipv6_find_idev+0x102/0x170
[ 6093.408311][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6093.408311][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6093.408311][   T73]      netlink_rcv_skb+0x130/0x360
[ 6093.408311][   T73]      netlink_unicast+0x449/0x710
[ 6093.408311][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6093.408311][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6093.408311][   T73]      ___sys_sendmsg+0xee/0x170
[ 6093.408311][   T73]      __sys_sendmsg+0xcd/0x170
[ 6093.408311][   T73]      do_syscall_64+0xc6/0x1e0
[ 6093.408311][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6093.408311][   T73] 
[ 6093.411043][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6093.411043][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6093.411043][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6093.411043][   T73]      ipv6_find_idev+0x102/0x170
[ 6093.411043][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6093.411043][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6093.411043][   T73]      netlink_rcv_skb+0x130/0x360
[ 6093.411043][   T73]      netlink_unicast+0x449/0x710
[ 6093.411043][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6093.411043][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6093.411043][   T73]      ___sys_sendmsg+0xee/0x170
[ 6093.411043][   T73]      __sys_sendmsg+0xcd/0x170
[ 6093.411043][   T73]      do_syscall_64+0xc6/0x1e0
[ 6093.411043][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6093.411043][   T73] 
[ 6093.414070][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6093.414571][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6093.414571][   T73]      netdev_get_by_index+0x5e/0x80
[ 6093.414571][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6093.414571][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6093.414571][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6093.414571][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6093.414571][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6093.414571][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6093.414571][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6093.414571][   T73]      addrconf_dad_begin+0x310/0x670
[ 6093.414571][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6093.414571][   T73]      process_one_work+0x84d/0x18a0
[ 6093.414571][   T73]      worker_thread+0x587/0xd30
[ 6093.414571][   T73]      kthread+0x28a/0x350
[ 6093.414571][   T73]      ret_from_fork+0x31/0x70
[ 6093.414571][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6093.414571][   T73] 
[ 6093.417674][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6093.417674][   T73]      netdev_get_by_index+0x5e/0x80
[ 6093.417674][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6093.417674][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6093.417674][   T73]      ip6_route_add+0x1c/0x140
[ 6093.417674][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6093.417674][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6093.417674][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6093.417674][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6093.417674][   T73]      netlink_rcv_skb+0x130/0x360
[ 6093.417674][   T73]      netlink_unicast+0x449/0x710
[ 6093.417674][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6093.417674][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6093.417674][   T73]      ___sys_sendmsg+0xee/0x170
[ 6093.417674][   T73]      __sys_sendmsg+0xcd/0x170
[ 6093.417674][   T73]      do_syscall_64+0xc6/0x1e0
[ 6093.417674][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6093.417674][   T73] 
[ 6093.421261][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6093.421261][   T73]      netdev_get_by_index+0x5e/0x80
[ 6093.421261][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6093.421261][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6093.421261][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6093.421261][   T73]      ipv6_add_addr+0x411/0x2000
[ 6093.421261][   T73]      inet6_addr_add+0x30e/0xa40
[ 6093.421261][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6093.421261][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6093.421261][   T73]      netlink_rcv_skb+0x130/0x360
[ 6093.421261][   T73]      netlink_unicast+0x449/0x710
[ 6093.421261][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6093.421261][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6093.421261][   T73]      ___sys_sendmsg+0xee/0x170
[ 6093.421261][   T73]      __sys_sendmsg+0xcd/0x170
[ 6093.421261][   T73]      do_syscall_64+0xc6/0x1e0
[ 6093.421261][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6093.421261][   T73] 
[ 6093.424568][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6093.424568][   T73]      netdev_get_by_index+0x5e/0x80
[ 6093.424568][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6093.424568][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6093.424568][   T73]      ip6_route_add+0x1c/0x140
[ 6093.424568][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6093.424568][   T73]      addrconf_add_dev+0xe2/0x170
[ 6093.424568][   T73]      inet6_addr_add+0x12f/0xa40
[ 6093.424568][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6093.424568][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6093.424568][   T73]      netlink_rcv_skb+0x130/0x360
[ 6093.424568][   T73]      netlink_unicast+0x449/0x710
[ 6093.424568][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6093.424568][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6093.424568][   T73]      ___sys_sendmsg+0xee/0x170
[ 6093.424568][   T73]      __sys_sendmsg+0xcd/0x170
[ 6093.424568][   T73]      do_syscall_64+0xc6/0x1e0
[ 6093.424568][   T73] 
[ 6093.428085][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6093.428085][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6093.428085][   T73]      ipv6_find_idev+0x102/0x170
[ 6093.428085][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6093.428085][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6093.428085][   T73]      netlink_rcv_skb+0x130/0x360
[ 6093.428085][   T73]      netlink_unicast+0x449/0x710
[ 6093.428085][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6093.428085][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6093.428085][   T73]      ___sys_sendmsg+0xee/0x170
[ 6093.428085][   T73]      __sys_sendmsg+0xcd/0x170
[ 6093.428085][   T73]      do_syscall_64+0xc6/0x1e0
[ 6093.428085][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6093.428085][   T73] 
[ 6093.430642][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6093.430642][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6093.430642][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6093.430642][   T73]      ipv6_find_idev+0x102/0x170
[ 6093.430642][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6093.430642][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6093.430642][   T73]      netlink_rcv_skb+0x130/0x360
[ 6093.430642][   T73]      netlink_unicast+0x449/0x710
[ 6093.430642][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6093.430642][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6093.430642][   T73]      ___sys_sendmsg+0xee/0x170
[ 6093.430642][   T73]      __sys_sendmsg+0xcd/0x170
[ 6093.430642][   T73]      do_syscall_64+0xc6/0x1e0
[ 6093.430642][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6093.430642][   T73] 
[ 6093.433415][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6093.433944][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6093.433944][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6093.433944][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6093.433944][   T73]      fib6_nh_init+0xa22/0x1580
[ 6093.433944][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6093.433944][   T73]      ip6_route_add+0x1c/0x140
[ 6093.433944][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6093.433944][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6093.433944][   T73]      netlink_rcv_skb+0x130/0x360
[ 6093.433944][   T73]      netlink_unicast+0x449/0x710
[ 6093.433944][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6093.433944][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6093.433944][   T73]      ___sys_sendmsg+0xee/0x170
[ 6093.433944][   T73]      __sys_sendmsg+0xcd/0x170
[ 6093.433944][   T73]      do_syscall_64+0xc6/0x1e0
[ 6093.433944][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6093.433944][   T73] 
[ 6093.437628][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6093.437628][   T73]      dst_init+0x84/0x4a0
[ 6093.437628][   T73]      dst_alloc+0x97/0x150
[ 6093.437628][   T73]      ip6_dst_alloc+0x23/0x90
[ 6093.437628][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6093.437628][   T73]      ip6_pol_route+0x56f/0x840
[ 6093.437628][   T73]      fib6_rule_lookup+0x456/0x630
[ 6093.437628][   T73]      ip6_route_input+0x59c/0xa50
[ 6093.437628][   T73]      ipv6_rcv+0x397/0x810
[ 6093.437628][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6093.437628][   T73]      process_backlog+0x101/0x620
[ 6093.437628][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6093.437628][   T73]      net_rx_action+0x495/0xbe0
[ 6093.437628][   T73]      __do_softirq+0x1b5/0x7f6
[ 6093.437628][   T73] 
[ 6093.440543][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6093.440543][   T73]      netdev_get_by_index+0x5e/0x80
[ 6093.440543][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6093.440543][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6093.440543][   T73]      ip6_route_add+0x1c/0x140
[ 6093.440543][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6093.440543][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6093.440543][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6093.440543][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6093.440543][   T73]      netlink_rcv_skb+0x130/0x360
[ 6093.440543][   T73]      netlink_unicast+0x449/0x710
[ 6093.440543][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6093.440543][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6093.440543][   T73]      ___sys_sendmsg+0xee/0x170
[ 6093.440543][   T73]      __sys_sendmsg+0xcd/0x170
[ 6093.440543][   T73]      do_syscall_64+0xc6/0x1e0
[ 6093.440543][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6093.440543][   T73] 
[ 6093.444458][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6093.444458][   T73]      netdev_get_by_index+0x5e/0x80
[ 6093.444458][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6093.444458][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6093.444458][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6093.444458][   T73]      ipv6_add_addr+0x411/0x2000
[ 6093.444458][   T73]      inet6_addr_add+0x30e/0xa40
[ 6093.444458][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6093.444458][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6093.444458][   T73]      netlink_rcv_skb+0x130/0x360
[ 6093.444458][   T73]      netlink_unicast+0x449/0x710
[ 6093.444458][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6093.444458][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6093.444458][   T73]      ___sys_sendmsg+0xee/0x170
[ 6093.444458][   T73]      __sys_sendmsg+0xcd/0x170
[ 6093.444458][   T73]      do_syscall_64+0xc6/0x1e0
[ 6093.444458][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6093.444458][   T73] 
[ 6093.448002][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6093.448002][   T73]      netdev_get_by_index+0x5e/0x80
[ 6093.448002][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6093.448002][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6093.448002][   T73]      ip6_route_add+0x1c/0x140
[ 6093.448002][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6093.448002][   T73]      addrconf_add_dev+0xe2/0x170
[ 6093.448002][   T73]      inet6_addr_add+0x12f/0xa40
[ 6093.448002][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6093.448002][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6093.448002][   T73]      netlink_rcv_skb+0x130/0x360
[ 6093.448002][   T73]      netlink_unicast+0x449/0x710
[ 6093.448002][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6093.448002][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6093.448002][   T73]      ___sys_sendmsg+0xee/0x170
[ 6093.448002][   T73]      __sys_sendmsg+0xcd/0x170
[ 6093.448002][   T73]      do_syscall_64+0xc6/0x1e0
[ 6093.448002][   T73] 
[ 6093.452119][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6093.452119][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6093.452119][   T73]      ipv6_find_idev+0x102/0x170
[ 6093.452119][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6093.452119][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6093.452119][   T73]      netlink_rcv_skb+0x130/0x360
[ 6093.452119][   T73]      netlink_unicast+0x449/0x710
[ 6093.452119][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6093.452119][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6093.452119][   T73]      ___sys_sendmsg+0xee/0x170
[ 6093.452119][   T73]      __sys_sendmsg+0xcd/0x170
[ 6093.452119][   T73]      do_syscall_64+0xc6/0x1e0
[ 6093.452119][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6093.452119][   T73] 
[ 6093.455073][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6093.455073][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6093.455073][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6093.455073][   T73]      ipv6_find_idev+0x102/0x170
[ 6093.455073][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6093.455073][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6093.455073][   T73]      netlink_rcv_skb+0x130/0x360
[ 6093.455073][   T73]      netlink_unicast+0x449/0x710
[ 6093.455073][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6093.455073][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6093.455073][   T73]      ___sys_sendmsg+0xee/0x170
[ 6093.455073][   T73]      __sys_sendmsg+0xcd/0x170
[ 6093.455073][   T73]      do_syscall_64+0xc6/0x1e0
[ 6093.455073][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6093.455073][   T73] 
[ 6093.458303][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6093.459801][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6093.459801][   T73]      netdev_get_by_index+0x5e/0x80
[ 6093.459801][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6093.459801][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6093.459801][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6093.459801][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6093.459801][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6093.459801][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6093.459801][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6093.459801][   T73]      addrconf_dad_begin+0x310/0x670
[ 6093.459801][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6093.459801][   T73]      process_one_work+0x84d/0x18a0
[ 6093.459801][   T73]      worker_thread+0x587/0xd30
[ 6093.459801][   T73]      kthread+0x28a/0x350
[ 6093.459801][   T73]      ret_from_fork+0x31/0x70
[ 6093.459801][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6093.459801][   T73] 
[ 6093.462916][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6093.462916][   T73]      netdev_get_by_index+0x5e/0x80
[ 6093.462916][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6093.462916][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6093.462916][   T73]      ip6_route_add+0x1c/0x140
[ 6093.462916][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6093.462916][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6093.462916][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6093.462916][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6093.462916][   T73]      netlink_rcv_skb+0x130/0x360
[ 6093.462916][   T73]      netlink_unicast+0x449/0x710
[ 6093.462916][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6093.462916][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6093.462916][   T73]      ___sys_sendmsg+0xee/0x170
[ 6093.462916][   T73]      __sys_sendmsg+0xcd/0x170
[ 6093.462916][   T73]      do_syscall_64+0xc6/0x1e0
[ 6093.462916][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6093.462916][   T73] 
[ 6093.466397][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6093.466397][   T73]      netdev_get_by_index+0x5e/0x80
[ 6093.466397][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6093.466397][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6093.466397][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6093.466397][   T73]      ipv6_add_addr+0x411/0x2000
[ 6093.466397][   T73]      inet6_addr_add+0x30e/0xa40
[ 6093.466397][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6093.466397][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6093.466397][   T73]      netlink_rcv_skb+0x130/0x360
[ 6093.466397][   T73]      netlink_unicast+0x449/0x710
[ 6093.466397][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6093.466397][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6093.466397][   T73]      ___sys_sendmsg+0xee/0x170
[ 6093.466397][   T73]      __sys_sendmsg+0xcd/0x170
[ 6093.466397][   T73]      do_syscall_64+0xc6/0x1e0
[ 6093.466397][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6093.466397][   T73] 
[ 6093.470180][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6093.470180][   T73]      netdev_get_by_index+0x5e/0x80
[ 6093.470180][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6093.470180][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6093.470180][   T73]      ip6_route_add+0x1c/0x140
[ 6093.470180][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6093.470180][   T73]      addrconf_add_dev+0xe2/0x170
[ 6093.470180][   T73]      inet6_addr_add+0x12f/0xa40
[ 6093.470180][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6093.470180][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6093.470180][   T73]      netlink_rcv_skb+0x130/0x360
[ 6093.470180][   T73]      netlink_unicast+0x449/0x710
[ 6093.470180][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6093.470180][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6093.470180][   T73]      ___sys_sendmsg+0xee/0x170
[ 6093.470180][   T73]      __sys_sendmsg+0xcd/0x170
[ 6093.470180][   T73]      do_syscall_64+0xc6/0x1e0
[ 6093.470180][   T73] 
[ 6093.474017][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6093.474017][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6093.474017][   T73]      ipv6_find_idev+0x102/0x170
[ 6093.474017][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6093.474017][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6093.474017][   T73]      netlink_rcv_skb+0x130/0x360
[ 6093.474017][   T73]      netlink_unicast+0x449/0x710
[ 6093.474017][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6093.474017][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6093.474017][   T73]      ___sys_sendmsg+0xee/0x170
[ 6093.474017][   T73]      __sys_sendmsg+0xcd/0x170
[ 6093.474017][   T73]      do_syscall_64+0xc6/0x1e0
[ 6093.474017][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6093.474017][   T73] 
[ 6093.477044][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6093.477044][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6093.477044][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6093.477044][   T73]      ipv6_find_idev+0x102/0x170
[ 6093.477044][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6093.477044][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6093.477044][   T73]      netlink_rcv_skb+0x130/0x360
[ 6093.477044][   T73]      netlink_unicast+0x449/0x710
[ 6093.477044][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6093.477044][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6093.477044][   T73]      ___sys_sendmsg+0xee/0x170
[ 6093.477044][   T73]      __sys_sendmsg+0xcd/0x170
[ 6093.477044][   T73]      do_syscall_64+0xc6/0x1e0
[ 6093.477044][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6093.477044][   T73] 
[ 6103.495779][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6103.496284][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6103.496284][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6103.496284][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6103.496284][   T73]      fib6_nh_init+0xa22/0x1580
[ 6103.496284][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6103.496284][   T73]      ip6_route_add+0x1c/0x140
[ 6103.496284][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6103.496284][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6103.496284][   T73]      netlink_rcv_skb+0x130/0x360
[ 6103.496284][   T73]      netlink_unicast+0x449/0x710
[ 6103.496284][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6103.496284][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6103.496284][   T73]      ___sys_sendmsg+0xee/0x170
[ 6103.496284][   T73]      __sys_sendmsg+0xcd/0x170
[ 6103.496284][   T73]      do_syscall_64+0xc6/0x1e0
[ 6103.496284][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6103.496284][   T73] 
[ 6103.498261][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6103.498261][   T73]      dst_init+0x84/0x4a0
[ 6103.498261][   T73]      dst_alloc+0x97/0x150
[ 6103.498261][   T73]      ip6_dst_alloc+0x23/0x90
[ 6103.498261][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6103.498261][   T73]      ip6_pol_route+0x56f/0x840
[ 6103.498261][   T73]      fib6_rule_lookup+0x456/0x630
[ 6103.498261][   T73]      ip6_route_input+0x59c/0xa50
[ 6103.498261][   T73]      ipv6_rcv+0x397/0x810
[ 6103.498261][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6103.498261][   T73]      process_backlog+0x101/0x620
[ 6103.498261][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6103.498261][   T73]      net_rx_action+0x495/0xbe0
[ 6103.498261][   T73]      __do_softirq+0x1b5/0x7f6
[ 6103.498261][   T73] 
[ 6103.499928][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6103.499928][   T73]      netdev_get_by_index+0x5e/0x80
[ 6103.499928][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6103.499928][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6103.499928][   T73]      ip6_route_add+0x1c/0x140
[ 6103.499928][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6103.499928][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6103.499928][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6103.499928][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6103.499928][   T73]      netlink_rcv_skb+0x130/0x360
[ 6103.499928][   T73]      netlink_unicast+0x449/0x710
[ 6103.499928][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6103.499928][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6103.499928][   T73]      ___sys_sendmsg+0xee/0x170
[ 6103.499928][   T73]      __sys_sendmsg+0xcd/0x170
[ 6103.499928][   T73]      do_syscall_64+0xc6/0x1e0
[ 6103.499928][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6103.499928][   T73] 
[ 6103.501957][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6103.501957][   T73]      netdev_get_by_index+0x5e/0x80
[ 6103.501957][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6103.501957][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6103.501957][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6103.501957][   T73]      ipv6_add_addr+0x411/0x2000
[ 6103.501957][   T73]      inet6_addr_add+0x30e/0xa40
[ 6103.501957][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6103.501957][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6103.501957][   T73]      netlink_rcv_skb+0x130/0x360
[ 6103.501957][   T73]      netlink_unicast+0x449/0x710
[ 6103.501957][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6103.501957][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6103.501957][   T73]      ___sys_sendmsg+0xee/0x170
[ 6103.501957][   T73]      __sys_sendmsg+0xcd/0x170
[ 6103.501957][   T73]      do_syscall_64+0xc6/0x1e0
[ 6103.501957][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6103.501957][   T73] 
[ 6103.503990][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6103.503990][   T73]      netdev_get_by_index+0x5e/0x80
[ 6103.503990][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6103.503990][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6103.503990][   T73]      ip6_route_add+0x1c/0x140
[ 6103.503990][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6103.503990][   T73]      addrconf_add_dev+0xe2/0x170
[ 6103.503990][   T73]      inet6_addr_add+0x12f/0xa40
[ 6103.503990][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6103.503990][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6103.503990][   T73]      netlink_rcv_skb+0x130/0x360
[ 6103.503990][   T73]      netlink_unicast+0x449/0x710
[ 6103.503990][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6103.503990][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6103.503990][   T73]      ___sys_sendmsg+0xee/0x170
[ 6103.503990][   T73]      __sys_sendmsg+0xcd/0x170
[ 6103.503990][   T73]      do_syscall_64+0xc6/0x1e0
[ 6103.503990][   T73] 
[ 6103.506001][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6103.506001][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6103.506001][   T73]      ipv6_find_idev+0x102/0x170
[ 6103.506001][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6103.506001][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6103.506001][   T73]      netlink_rcv_skb+0x130/0x360
[ 6103.506001][   T73]      netlink_unicast+0x449/0x710
[ 6103.506001][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6103.506001][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6103.506001][   T73]      ___sys_sendmsg+0xee/0x170
[ 6103.506001][   T73]      __sys_sendmsg+0xcd/0x170
[ 6103.506001][   T73]      do_syscall_64+0xc6/0x1e0
[ 6103.506001][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6103.506001][   T73] 
[ 6103.507575][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6103.507575][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6103.507575][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6103.507575][   T73]      ipv6_find_idev+0x102/0x170
[ 6103.507575][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6103.507575][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6103.507575][   T73]      netlink_rcv_skb+0x130/0x360
[ 6103.507575][   T73]      netlink_unicast+0x449/0x710
[ 6103.507575][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6103.507575][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6103.507575][   T73]      ___sys_sendmsg+0xee/0x170
[ 6103.507575][   T73]      __sys_sendmsg+0xcd/0x170
[ 6103.507575][   T73]      do_syscall_64+0xc6/0x1e0
[ 6103.507575][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6103.507575][   T73] 
[ 6103.509295][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6103.509591][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6103.509591][   T73]      netdev_get_by_index+0x5e/0x80
[ 6103.509591][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6103.509591][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6103.509591][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6103.509591][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6103.509591][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6103.509591][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6103.509591][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6103.509591][   T73]      addrconf_dad_begin+0x310/0x670
[ 6103.509591][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6103.509591][   T73]      process_one_work+0x84d/0x18a0
[ 6103.509591][   T73]      worker_thread+0x587/0xd30
[ 6103.509591][   T73]      kthread+0x28a/0x350
[ 6103.509591][   T73]      ret_from_fork+0x31/0x70
[ 6103.509591][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6103.509591][   T73] 
[ 6103.511538][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6103.511538][   T73]      netdev_get_by_index+0x5e/0x80
[ 6103.511538][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6103.511538][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6103.511538][   T73]      ip6_route_add+0x1c/0x140
[ 6103.511538][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6103.511538][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6103.511538][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6103.511538][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6103.511538][   T73]      netlink_rcv_skb+0x130/0x360
[ 6103.511538][   T73]      netlink_unicast+0x449/0x710
[ 6103.511538][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6103.511538][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6103.511538][   T73]      ___sys_sendmsg+0xee/0x170
[ 6103.511538][   T73]      __sys_sendmsg+0xcd/0x170
[ 6103.511538][   T73]      do_syscall_64+0xc6/0x1e0
[ 6103.511538][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6103.511538][   T73] 
[ 6103.513585][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6103.513585][   T73]      netdev_get_by_index+0x5e/0x80
[ 6103.513585][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6103.513585][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6103.513585][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6103.513585][   T73]      ipv6_add_addr+0x411/0x2000
[ 6103.513585][   T73]      inet6_addr_add+0x30e/0xa40
[ 6103.513585][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6103.513585][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6103.513585][   T73]      netlink_rcv_skb+0x130/0x360
[ 6103.513585][   T73]      netlink_unicast+0x449/0x710
[ 6103.513585][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6103.513585][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6103.513585][   T73]      ___sys_sendmsg+0xee/0x170
[ 6103.513585][   T73]      __sys_sendmsg+0xcd/0x170
[ 6103.513585][   T73]      do_syscall_64+0xc6/0x1e0
[ 6103.513585][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6103.513585][   T73] 
[ 6103.515622][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6103.515622][   T73]      netdev_get_by_index+0x5e/0x80
[ 6103.515622][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6103.515622][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6103.515622][   T73]      ip6_route_add+0x1c/0x140
[ 6103.515622][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6103.515622][   T73]      addrconf_add_dev+0xe2/0x170
[ 6103.515622][   T73]      inet6_addr_add+0x12f/0xa40
[ 6103.515622][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6103.515622][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6103.515622][   T73]      netlink_rcv_skb+0x130/0x360
[ 6103.515622][   T73]      netlink_unicast+0x449/0x710
[ 6103.515622][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6103.515622][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6103.515622][   T73]      ___sys_sendmsg+0xee/0x170
[ 6103.515622][   T73]      __sys_sendmsg+0xcd/0x170
[ 6103.515622][   T73]      do_syscall_64+0xc6/0x1e0
[ 6103.515622][   T73] 
[ 6103.517631][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6103.517631][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6103.517631][   T73]      ipv6_find_idev+0x102/0x170
[ 6103.517631][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6103.517631][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6103.517631][   T73]      netlink_rcv_skb+0x130/0x360
[ 6103.517631][   T73]      netlink_unicast+0x449/0x710
[ 6103.517631][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6103.517631][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6103.517631][   T73]      ___sys_sendmsg+0xee/0x170
[ 6103.517631][   T73]      __sys_sendmsg+0xcd/0x170
[ 6103.517631][   T73]      do_syscall_64+0xc6/0x1e0
[ 6103.517631][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6103.517631][   T73] 
[ 6103.519197][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6103.519197][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6103.519197][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6103.519197][   T73]      ipv6_find_idev+0x102/0x170
[ 6103.519197][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6103.519197][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6103.519197][   T73]      netlink_rcv_skb+0x130/0x360
[ 6103.519197][   T73]      netlink_unicast+0x449/0x710
[ 6103.519197][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6103.519197][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6103.519197][   T73]      ___sys_sendmsg+0xee/0x170
[ 6103.519197][   T73]      __sys_sendmsg+0xcd/0x170
[ 6103.519197][   T73]      do_syscall_64+0xc6/0x1e0
[ 6103.519197][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6103.519197][   T73] 
[ 6103.520897][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6103.521180][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6103.521180][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6103.521180][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6103.521180][   T73]      fib6_nh_init+0xa22/0x1580
[ 6103.521180][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6103.521180][   T73]      ip6_route_add+0x1c/0x140
[ 6103.521180][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6103.521180][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6103.521180][   T73]      netlink_rcv_skb+0x130/0x360
[ 6103.521180][   T73]      netlink_unicast+0x449/0x710
[ 6103.521180][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6103.521180][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6103.521180][   T73]      ___sys_sendmsg+0xee/0x170
[ 6103.521180][   T73]      __sys_sendmsg+0xcd/0x170
[ 6103.521180][   T73]      do_syscall_64+0xc6/0x1e0
[ 6103.521180][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6103.521180][   T73] 
[ 6103.523277][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6103.523277][   T73]      dst_init+0x84/0x4a0
[ 6103.523277][   T73]      dst_alloc+0x97/0x150
[ 6103.523277][   T73]      ip6_dst_alloc+0x23/0x90
[ 6103.523277][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6103.523277][   T73]      ip6_pol_route+0x56f/0x840
[ 6103.523277][   T73]      fib6_rule_lookup+0x456/0x630
[ 6103.523277][   T73]      ip6_route_input+0x59c/0xa50
[ 6103.523277][   T73]      ipv6_rcv+0x397/0x810
[ 6103.523277][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6103.523277][   T73]      process_backlog+0x101/0x620
[ 6103.523277][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6103.523277][   T73]      net_rx_action+0x495/0xbe0
[ 6103.523277][   T73]      __do_softirq+0x1b5/0x7f6
[ 6103.523277][   T73] 
[ 6103.525112][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6103.525112][   T73]      netdev_get_by_index+0x5e/0x80
[ 6103.525112][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6103.525112][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6103.525112][   T73]      ip6_route_add+0x1c/0x140
[ 6103.525112][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6103.525112][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6103.525112][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6103.525112][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6103.525112][   T73]      netlink_rcv_skb+0x130/0x360
[ 6103.525112][   T73]      netlink_unicast+0x449/0x710
[ 6103.525112][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6103.525112][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6103.525112][   T73]      ___sys_sendmsg+0xee/0x170
[ 6103.525112][   T73]      __sys_sendmsg+0xcd/0x170
[ 6103.525112][   T73]      do_syscall_64+0xc6/0x1e0
[ 6103.525112][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6103.525112][   T73] 
[ 6103.527380][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6103.527380][   T73]      netdev_get_by_index+0x5e/0x80
[ 6103.527380][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6103.527380][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6103.527380][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6103.527380][   T73]      ipv6_add_addr+0x411/0x2000
[ 6103.527380][   T73]      inet6_addr_add+0x30e/0xa40
[ 6103.527380][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6103.527380][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6103.527380][   T73]      netlink_rcv_skb+0x130/0x360
[ 6103.527380][   T73]      netlink_unicast+0x449/0x710
[ 6103.527380][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6103.527380][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6103.527380][   T73]      ___sys_sendmsg+0xee/0x170
[ 6103.527380][   T73]      __sys_sendmsg+0xcd/0x170
[ 6103.527380][   T73]      do_syscall_64+0xc6/0x1e0
[ 6103.527380][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6103.527380][   T73] 
[ 6103.529695][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6103.529695][   T73]      netdev_get_by_index+0x5e/0x80
[ 6103.529695][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6103.529695][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6103.529695][   T73]      ip6_route_add+0x1c/0x140
[ 6103.529695][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6103.529695][   T73]      addrconf_add_dev+0xe2/0x170
[ 6103.529695][   T73]      inet6_addr_add+0x12f/0xa40
[ 6103.529695][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6103.529695][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6103.529695][   T73]      netlink_rcv_skb+0x130/0x360
[ 6103.529695][   T73]      netlink_unicast+0x449/0x710
[ 6103.529695][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6103.529695][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6103.529695][   T73]      ___sys_sendmsg+0xee/0x170
[ 6103.529695][   T73]      __sys_sendmsg+0xcd/0x170
[ 6103.529695][   T73]      do_syscall_64+0xc6/0x1e0
[ 6103.529695][   T73] 
[ 6103.531927][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6103.531927][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6103.531927][   T73]      ipv6_find_idev+0x102/0x170
[ 6103.531927][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6103.531927][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6103.531927][   T73]      netlink_rcv_skb+0x130/0x360
[ 6103.531927][   T73]      netlink_unicast+0x449/0x710
[ 6103.531927][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6103.531927][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6103.531927][   T73]      ___sys_sendmsg+0xee/0x170
[ 6103.531927][   T73]      __sys_sendmsg+0xcd/0x170
[ 6103.531927][   T73]      do_syscall_64+0xc6/0x1e0
[ 6103.531927][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6103.531927][   T73] 
[ 6103.533661][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6103.533661][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6103.533661][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6103.533661][   T73]      ipv6_find_idev+0x102/0x170
[ 6103.533661][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6103.533661][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6103.533661][   T73]      netlink_rcv_skb+0x130/0x360
[ 6103.533661][   T73]      netlink_unicast+0x449/0x710
[ 6103.533661][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6103.533661][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6103.533661][   T73]      ___sys_sendmsg+0xee/0x170
[ 6103.533661][   T73]      __sys_sendmsg+0xcd/0x170
[ 6103.533661][   T73]      do_syscall_64+0xc6/0x1e0
[ 6103.533661][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6103.533661][   T73] 
[ 6103.535552][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6103.536273][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6103.536273][   T73]      netdev_get_by_index+0x5e/0x80
[ 6103.536273][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6103.536273][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6103.536273][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6103.536273][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6103.536273][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6103.536273][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6103.536273][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6103.536273][   T73]      addrconf_dad_begin+0x310/0x670
[ 6103.536273][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6103.536273][   T73]      process_one_work+0x84d/0x18a0
[ 6103.536273][   T73]      worker_thread+0x587/0xd30
[ 6103.536273][   T73]      kthread+0x28a/0x350
[ 6103.536273][   T73]      ret_from_fork+0x31/0x70
[ 6103.536273][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6103.536273][   T73] 
[ 6103.538203][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6103.538203][   T73]      netdev_get_by_index+0x5e/0x80
[ 6103.538203][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6103.538203][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6103.538203][   T73]      ip6_route_add+0x1c/0x140
[ 6103.538203][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6103.538203][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6103.538203][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6103.538203][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6103.538203][   T73]      netlink_rcv_skb+0x130/0x360
[ 6103.538203][   T73]      netlink_unicast+0x449/0x710
[ 6103.538203][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6103.538203][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6103.538203][   T73]      ___sys_sendmsg+0xee/0x170
[ 6103.538203][   T73]      __sys_sendmsg+0xcd/0x170
[ 6103.538203][   T73]      do_syscall_64+0xc6/0x1e0
[ 6103.538203][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6103.538203][   T73] 
[ 6103.540340][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6103.540340][   T73]      netdev_get_by_index+0x5e/0x80
[ 6103.540340][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6103.540340][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6103.540340][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6103.540340][   T73]      ipv6_add_addr+0x411/0x2000
[ 6103.540340][   T73]      inet6_addr_add+0x30e/0xa40
[ 6103.540340][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6103.540340][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6103.540340][   T73]      netlink_rcv_skb+0x130/0x360
[ 6103.540340][   T73]      netlink_unicast+0x449/0x710
[ 6103.540340][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6103.540340][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6103.540340][   T73]      ___sys_sendmsg+0xee/0x170
[ 6103.540340][   T73]      __sys_sendmsg+0xcd/0x170
[ 6103.540340][   T73]      do_syscall_64+0xc6/0x1e0
[ 6103.540340][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6103.540340][   T73] 
[ 6103.542671][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6103.542671][   T73]      netdev_get_by_index+0x5e/0x80
[ 6103.542671][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6103.542671][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6103.542671][   T73]      ip6_route_add+0x1c/0x140
[ 6103.542671][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6103.542671][   T73]      addrconf_add_dev+0xe2/0x170
[ 6103.542671][   T73]      inet6_addr_add+0x12f/0xa40
[ 6103.542671][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6103.542671][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6103.542671][   T73]      netlink_rcv_skb+0x130/0x360
[ 6103.542671][   T73]      netlink_unicast+0x449/0x710
[ 6103.542671][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6103.542671][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6103.542671][   T73]      ___sys_sendmsg+0xee/0x170
[ 6103.542671][   T73]      __sys_sendmsg+0xcd/0x170
[ 6103.542671][   T73]      do_syscall_64+0xc6/0x1e0
[ 6103.542671][   T73] 
[ 6103.544840][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6103.544840][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6103.544840][   T73]      ipv6_find_idev+0x102/0x170
[ 6103.544840][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6103.544840][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6103.544840][   T73]      netlink_rcv_skb+0x130/0x360
[ 6103.544840][   T73]      netlink_unicast+0x449/0x710
[ 6103.544840][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6103.544840][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6103.544840][   T73]      ___sys_sendmsg+0xee/0x170
[ 6103.544840][   T73]      __sys_sendmsg+0xcd/0x170
[ 6103.544840][   T73]      do_syscall_64+0xc6/0x1e0
[ 6103.544840][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6103.544840][   T73] 
[ 6103.546573][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6103.546573][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6103.546573][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6103.546573][   T73]      ipv6_find_idev+0x102/0x170
[ 6103.546573][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6103.546573][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6103.546573][   T73]      netlink_rcv_skb+0x130/0x360
[ 6103.546573][   T73]      netlink_unicast+0x449/0x710
[ 6103.546573][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6103.546573][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6103.546573][   T73]      ___sys_sendmsg+0xee/0x170
[ 6103.546573][   T73]      __sys_sendmsg+0xcd/0x170
[ 6103.546573][   T73]      do_syscall_64+0xc6/0x1e0
[ 6103.546573][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6103.546573][   T73] 
[ 6113.607686][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6113.608194][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6113.608194][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6113.608194][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6113.608194][   T73]      fib6_nh_init+0xa22/0x1580
[ 6113.608194][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6113.608194][   T73]      ip6_route_add+0x1c/0x140
[ 6113.608194][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6113.608194][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6113.608194][   T73]      netlink_rcv_skb+0x130/0x360
[ 6113.608194][   T73]      netlink_unicast+0x449/0x710
[ 6113.608194][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6113.608194][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6113.608194][   T73]      ___sys_sendmsg+0xee/0x170
[ 6113.608194][   T73]      __sys_sendmsg+0xcd/0x170
[ 6113.608194][   T73]      do_syscall_64+0xc6/0x1e0
[ 6113.608194][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6113.608194][   T73] 
[ 6113.610356][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6113.610356][   T73]      dst_init+0x84/0x4a0
[ 6113.610356][   T73]      dst_alloc+0x97/0x150
[ 6113.610356][   T73]      ip6_dst_alloc+0x23/0x90
[ 6113.610356][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6113.610356][   T73]      ip6_pol_route+0x56f/0x840
[ 6113.610356][   T73]      fib6_rule_lookup+0x456/0x630
[ 6113.610356][   T73]      ip6_route_input+0x59c/0xa50
[ 6113.610356][   T73]      ipv6_rcv+0x397/0x810
[ 6113.610356][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6113.610356][   T73]      process_backlog+0x101/0x620
[ 6113.610356][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6113.610356][   T73]      net_rx_action+0x495/0xbe0
[ 6113.610356][   T73]      __do_softirq+0x1b5/0x7f6
[ 6113.610356][   T73] 
[ 6113.612187][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6113.612187][   T73]      netdev_get_by_index+0x5e/0x80
[ 6113.612187][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6113.612187][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6113.612187][   T73]      ip6_route_add+0x1c/0x140
[ 6113.612187][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6113.612187][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6113.612187][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6113.612187][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6113.612187][   T73]      netlink_rcv_skb+0x130/0x360
[ 6113.612187][   T73]      netlink_unicast+0x449/0x710
[ 6113.612187][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6113.612187][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6113.612187][   T73]      ___sys_sendmsg+0xee/0x170
[ 6113.612187][   T73]      __sys_sendmsg+0xcd/0x170
[ 6113.612187][   T73]      do_syscall_64+0xc6/0x1e0
[ 6113.612187][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6113.612187][   T73] 
[ 6113.614451][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6113.614451][   T73]      netdev_get_by_index+0x5e/0x80
[ 6113.614451][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6113.614451][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6113.614451][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6113.614451][   T73]      ipv6_add_addr+0x411/0x2000
[ 6113.614451][   T73]      inet6_addr_add+0x30e/0xa40
[ 6113.614451][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6113.614451][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6113.614451][   T73]      netlink_rcv_skb+0x130/0x360
[ 6113.614451][   T73]      netlink_unicast+0x449/0x710
[ 6113.614451][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6113.614451][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6113.614451][   T73]      ___sys_sendmsg+0xee/0x170
[ 6113.614451][   T73]      __sys_sendmsg+0xcd/0x170
[ 6113.614451][   T73]      do_syscall_64+0xc6/0x1e0
[ 6113.614451][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6113.614451][   T73] 
[ 6113.616713][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6113.616713][   T73]      netdev_get_by_index+0x5e/0x80
[ 6113.616713][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6113.616713][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6113.616713][   T73]      ip6_route_add+0x1c/0x140
[ 6113.616713][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6113.616713][   T73]      addrconf_add_dev+0xe2/0x170
[ 6113.616713][   T73]      inet6_addr_add+0x12f/0xa40
[ 6113.616713][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6113.616713][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6113.616713][   T73]      netlink_rcv_skb+0x130/0x360
[ 6113.616713][   T73]      netlink_unicast+0x449/0x710
[ 6113.616713][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6113.616713][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6113.616713][   T73]      ___sys_sendmsg+0xee/0x170
[ 6113.616713][   T73]      __sys_sendmsg+0xcd/0x170
[ 6113.616713][   T73]      do_syscall_64+0xc6/0x1e0
[ 6113.616713][   T73] 
[ 6113.619017][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6113.619017][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6113.619017][   T73]      ipv6_find_idev+0x102/0x170
[ 6113.619017][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6113.619017][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6113.619017][   T73]      netlink_rcv_skb+0x130/0x360
[ 6113.619017][   T73]      netlink_unicast+0x449/0x710
[ 6113.619017][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6113.619017][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6113.619017][   T73]      ___sys_sendmsg+0xee/0x170
[ 6113.619017][   T73]      __sys_sendmsg+0xcd/0x170
[ 6113.619017][   T73]      do_syscall_64+0xc6/0x1e0
[ 6113.619017][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6113.619017][   T73] 
[ 6113.620746][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6113.620746][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6113.620746][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6113.620746][   T73]      ipv6_find_idev+0x102/0x170
[ 6113.620746][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6113.620746][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6113.620746][   T73]      netlink_rcv_skb+0x130/0x360
[ 6113.620746][   T73]      netlink_unicast+0x449/0x710
[ 6113.620746][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6113.620746][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6113.620746][   T73]      ___sys_sendmsg+0xee/0x170
[ 6113.620746][   T73]      __sys_sendmsg+0xcd/0x170
[ 6113.620746][   T73]      do_syscall_64+0xc6/0x1e0
[ 6113.620746][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6113.620746][   T73] 
[ 6113.622664][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6113.622979][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6113.622979][   T73]      netdev_get_by_index+0x5e/0x80
[ 6113.622979][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6113.622979][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6113.622979][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6113.622979][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6113.622979][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6113.622979][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6113.622979][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6113.622979][   T73]      addrconf_dad_begin+0x310/0x670
[ 6113.622979][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6113.622979][   T73]      process_one_work+0x84d/0x18a0
[ 6113.622979][   T73]      worker_thread+0x587/0xd30
[ 6113.622979][   T73]      kthread+0x28a/0x350
[ 6113.622979][   T73]      ret_from_fork+0x31/0x70
[ 6113.622979][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6113.622979][   T73] 
[ 6113.625139][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6113.625139][   T73]      netdev_get_by_index+0x5e/0x80
[ 6113.625139][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6113.625139][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6113.625139][   T73]      ip6_route_add+0x1c/0x140
[ 6113.625139][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6113.625139][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6113.625139][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6113.625139][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6113.625139][   T73]      netlink_rcv_skb+0x130/0x360
[ 6113.625139][   T73]      netlink_unicast+0x449/0x710
[ 6113.625139][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6113.625139][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6113.625139][   T73]      ___sys_sendmsg+0xee/0x170
[ 6113.625139][   T73]      __sys_sendmsg+0xcd/0x170
[ 6113.625139][   T73]      do_syscall_64+0xc6/0x1e0
[ 6113.625139][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6113.625139][   T73] 
[ 6113.627402][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6113.627402][   T73]      netdev_get_by_index+0x5e/0x80
[ 6113.627402][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6113.627402][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6113.627402][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6113.627402][   T73]      ipv6_add_addr+0x411/0x2000
[ 6113.627402][   T73]      inet6_addr_add+0x30e/0xa40
[ 6113.627402][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6113.627402][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6113.627402][   T73]      netlink_rcv_skb+0x130/0x360
[ 6113.627402][   T73]      netlink_unicast+0x449/0x710
[ 6113.627402][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6113.627402][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6113.627402][   T73]      ___sys_sendmsg+0xee/0x170
[ 6113.627402][   T73]      __sys_sendmsg+0xcd/0x170
[ 6113.627402][   T73]      do_syscall_64+0xc6/0x1e0
[ 6113.627402][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6113.627402][   T73] 
[ 6113.629638][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6113.629638][   T73]      netdev_get_by_index+0x5e/0x80
[ 6113.629638][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6113.629638][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6113.629638][   T73]      ip6_route_add+0x1c/0x140
[ 6113.629638][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6113.629638][   T73]      addrconf_add_dev+0xe2/0x170
[ 6113.629638][   T73]      inet6_addr_add+0x12f/0xa40
[ 6113.629638][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6113.629638][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6113.629638][   T73]      netlink_rcv_skb+0x130/0x360
[ 6113.629638][   T73]      netlink_unicast+0x449/0x710
[ 6113.629638][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6113.629638][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6113.629638][   T73]      ___sys_sendmsg+0xee/0x170
[ 6113.629638][   T73]      __sys_sendmsg+0xcd/0x170
[ 6113.629638][   T73]      do_syscall_64+0xc6/0x1e0
[ 6113.629638][   T73] 
[ 6113.631818][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6113.631818][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6113.631818][   T73]      ipv6_find_idev+0x102/0x170
[ 6113.631818][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6113.631818][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6113.631818][   T73]      netlink_rcv_skb+0x130/0x360
[ 6113.631818][   T73]      netlink_unicast+0x449/0x710
[ 6113.631818][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6113.631818][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6113.631818][   T73]      ___sys_sendmsg+0xee/0x170
[ 6113.631818][   T73]      __sys_sendmsg+0xcd/0x170
[ 6113.631818][   T73]      do_syscall_64+0xc6/0x1e0
[ 6113.631818][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6113.631818][   T73] 
[ 6113.633536][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6113.633536][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6113.633536][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6113.633536][   T73]      ipv6_find_idev+0x102/0x170
[ 6113.633536][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6113.633536][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6113.633536][   T73]      netlink_rcv_skb+0x130/0x360
[ 6113.633536][   T73]      netlink_unicast+0x449/0x710
[ 6113.633536][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6113.633536][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6113.633536][   T73]      ___sys_sendmsg+0xee/0x170
[ 6113.633536][   T73]      __sys_sendmsg+0xcd/0x170
[ 6113.633536][   T73]      do_syscall_64+0xc6/0x1e0
[ 6113.633536][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6113.633536][   T73] 
[ 6113.635447][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6113.635758][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6113.635758][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6113.635758][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6113.635758][   T73]      fib6_nh_init+0xa22/0x1580
[ 6113.635758][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6113.635758][   T73]      ip6_route_add+0x1c/0x140
[ 6113.635758][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6113.635758][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6113.635758][   T73]      netlink_rcv_skb+0x130/0x360
[ 6113.635758][   T73]      netlink_unicast+0x449/0x710
[ 6113.635758][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6113.635758][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6113.635758][   T73]      ___sys_sendmsg+0xee/0x170
[ 6113.635758][   T73]      __sys_sendmsg+0xcd/0x170
[ 6113.635758][   T73]      do_syscall_64+0xc6/0x1e0
[ 6113.635758][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6113.635758][   T73] 
[ 6113.638073][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6113.638073][   T73]      dst_init+0x84/0x4a0
[ 6113.638073][   T73]      dst_alloc+0x97/0x150
[ 6113.638073][   T73]      ip6_dst_alloc+0x23/0x90
[ 6113.638073][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6113.638073][   T73]      ip6_pol_route+0x56f/0x840
[ 6113.638073][   T73]      fib6_rule_lookup+0x456/0x630
[ 6113.638073][   T73]      ip6_route_input+0x59c/0xa50
[ 6113.638073][   T73]      ipv6_rcv+0x397/0x810
[ 6113.638073][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6113.638073][   T73]      process_backlog+0x101/0x620
[ 6113.638073][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6113.638073][   T73]      net_rx_action+0x495/0xbe0
[ 6113.638073][   T73]      __do_softirq+0x1b5/0x7f6
[ 6113.638073][   T73] 
[ 6113.640158][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6113.640158][   T73]      netdev_get_by_index+0x5e/0x80
[ 6113.640158][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6113.640158][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6113.640158][   T73]      ip6_route_add+0x1c/0x140
[ 6113.640158][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6113.640158][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6113.640158][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6113.640158][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6113.640158][   T73]      netlink_rcv_skb+0x130/0x360
[ 6113.640158][   T73]      netlink_unicast+0x449/0x710
[ 6113.640158][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6113.640158][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6113.640158][   T73]      ___sys_sendmsg+0xee/0x170
[ 6113.640158][   T73]      __sys_sendmsg+0xcd/0x170
[ 6113.640158][   T73]      do_syscall_64+0xc6/0x1e0
[ 6113.640158][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6113.640158][   T73] 
[ 6113.642676][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6113.642676][   T73]      netdev_get_by_index+0x5e/0x80
[ 6113.642676][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6113.642676][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6113.642676][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6113.642676][   T73]      ipv6_add_addr+0x411/0x2000
[ 6113.642676][   T73]      inet6_addr_add+0x30e/0xa40
[ 6113.642676][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6113.642676][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6113.642676][   T73]      netlink_rcv_skb+0x130/0x360
[ 6113.642676][   T73]      netlink_unicast+0x449/0x710
[ 6113.642676][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6113.642676][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6113.642676][   T73]      ___sys_sendmsg+0xee/0x170
[ 6113.642676][   T73]      __sys_sendmsg+0xcd/0x170
[ 6113.642676][   T73]      do_syscall_64+0xc6/0x1e0
[ 6113.642676][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6113.642676][   T73] 
[ 6113.645106][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6113.645106][   T73]      netdev_get_by_index+0x5e/0x80
[ 6113.645106][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6113.645106][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6113.645106][   T73]      ip6_route_add+0x1c/0x140
[ 6113.645106][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6113.645106][   T73]      addrconf_add_dev+0xe2/0x170
[ 6113.645106][   T73]      inet6_addr_add+0x12f/0xa40
[ 6113.645106][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6113.645106][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6113.645106][   T73]      netlink_rcv_skb+0x130/0x360
[ 6113.645106][   T73]      netlink_unicast+0x449/0x710
[ 6113.645106][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6113.645106][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6113.645106][   T73]      ___sys_sendmsg+0xee/0x170
[ 6113.645106][   T73]      __sys_sendmsg+0xcd/0x170
[ 6113.645106][   T73]      do_syscall_64+0xc6/0x1e0
[ 6113.645106][   T73] 
[ 6113.647571][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6113.647571][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6113.647571][   T73]      ipv6_find_idev+0x102/0x170
[ 6113.647571][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6113.647571][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6113.647571][   T73]      netlink_rcv_skb+0x130/0x360
[ 6113.647571][   T73]      netlink_unicast+0x449/0x710
[ 6113.647571][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6113.647571][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6113.647571][   T73]      ___sys_sendmsg+0xee/0x170
[ 6113.647571][   T73]      __sys_sendmsg+0xcd/0x170
[ 6113.647571][   T73]      do_syscall_64+0xc6/0x1e0
[ 6113.647571][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6113.647571][   T73] 
[ 6113.649560][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6113.649560][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6113.649560][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6113.649560][   T73]      ipv6_find_idev+0x102/0x170
[ 6113.649560][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6113.649560][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6113.649560][   T73]      netlink_rcv_skb+0x130/0x360
[ 6113.649560][   T73]      netlink_unicast+0x449/0x710
[ 6113.649560][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6113.649560][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6113.649560][   T73]      ___sys_sendmsg+0xee/0x170
[ 6113.649560][   T73]      __sys_sendmsg+0xcd/0x170
[ 6113.649560][   T73]      do_syscall_64+0xc6/0x1e0
[ 6113.649560][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6113.649560][   T73] 
[ 6113.651671][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6113.652070][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6113.652070][   T73]      netdev_get_by_index+0x5e/0x80
[ 6113.652070][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6113.652070][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6113.652070][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6113.652070][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6113.652070][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6113.652070][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6113.652070][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6113.652070][   T73]      addrconf_dad_begin+0x310/0x670
[ 6113.652070][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6113.652070][   T73]      process_one_work+0x84d/0x18a0
[ 6113.652070][   T73]      worker_thread+0x587/0xd30
[ 6113.652070][   T73]      kthread+0x28a/0x350
[ 6113.652070][   T73]      ret_from_fork+0x31/0x70
[ 6113.652070][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6113.652070][   T73] 
[ 6113.654362][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6113.654362][   T73]      netdev_get_by_index+0x5e/0x80
[ 6113.654362][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6113.654362][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6113.654362][   T73]      ip6_route_add+0x1c/0x140
[ 6113.654362][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6113.654362][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6113.654362][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6113.654362][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6113.654362][   T73]      netlink_rcv_skb+0x130/0x360
[ 6113.654362][   T73]      netlink_unicast+0x449/0x710
[ 6113.654362][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6113.654362][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6113.654362][   T73]      ___sys_sendmsg+0xee/0x170
[ 6113.654362][   T73]      __sys_sendmsg+0xcd/0x170
[ 6113.654362][   T73]      do_syscall_64+0xc6/0x1e0
[ 6113.654362][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6113.654362][   T73] 
[ 6113.656891][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6113.656891][   T73]      netdev_get_by_index+0x5e/0x80
[ 6113.656891][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6113.656891][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6113.656891][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6113.656891][   T73]      ipv6_add_addr+0x411/0x2000
[ 6113.656891][   T73]      inet6_addr_add+0x30e/0xa40
[ 6113.656891][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6113.656891][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6113.656891][   T73]      netlink_rcv_skb+0x130/0x360
[ 6113.656891][   T73]      netlink_unicast+0x449/0x710
[ 6113.656891][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6113.656891][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6113.656891][   T73]      ___sys_sendmsg+0xee/0x170
[ 6113.656891][   T73]      __sys_sendmsg+0xcd/0x170
[ 6113.656891][   T73]      do_syscall_64+0xc6/0x1e0
[ 6113.656891][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6113.656891][   T73] 
[ 6113.659408][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6113.659408][   T73]      netdev_get_by_index+0x5e/0x80
[ 6113.659408][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6113.659408][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6113.659408][   T73]      ip6_route_add+0x1c/0x140
[ 6113.659408][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6113.659408][   T73]      addrconf_add_dev+0xe2/0x170
[ 6113.659408][   T73]      inet6_addr_add+0x12f/0xa40
[ 6113.659408][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6113.659408][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6113.659408][   T73]      netlink_rcv_skb+0x130/0x360
[ 6113.659408][   T73]      netlink_unicast+0x449/0x710
[ 6113.659408][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6113.659408][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6113.659408][   T73]      ___sys_sendmsg+0xee/0x170
[ 6113.659408][   T73]      __sys_sendmsg+0xcd/0x170
[ 6113.659408][   T73]      do_syscall_64+0xc6/0x1e0
[ 6113.659408][   T73] 
[ 6113.661929][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6113.661929][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6113.661929][   T73]      ipv6_find_idev+0x102/0x170
[ 6113.661929][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6113.661929][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6113.661929][   T73]      netlink_rcv_skb+0x130/0x360
[ 6113.661929][   T73]      netlink_unicast+0x449/0x710
[ 6113.661929][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6113.661929][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6113.661929][   T73]      ___sys_sendmsg+0xee/0x170
[ 6113.661929][   T73]      __sys_sendmsg+0xcd/0x170
[ 6113.661929][   T73]      do_syscall_64+0xc6/0x1e0
[ 6113.661929][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6113.661929][   T73] 
[ 6113.663831][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6113.663831][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6113.663831][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6113.663831][   T73]      ipv6_find_idev+0x102/0x170
[ 6113.663831][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6113.663831][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6113.663831][   T73]      netlink_rcv_skb+0x130/0x360
[ 6113.663831][   T73]      netlink_unicast+0x449/0x710
[ 6113.663831][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6113.663831][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6113.663831][   T73]      ___sys_sendmsg+0xee/0x170
[ 6113.663831][   T73]      __sys_sendmsg+0xcd/0x170
[ 6113.663831][   T73]      do_syscall_64+0xc6/0x1e0
[ 6113.663831][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6113.663831][   T73] 
[ 6123.735694][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6123.736246][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6123.736246][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6123.736246][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6123.736246][   T73]      fib6_nh_init+0xa22/0x1580
[ 6123.736246][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6123.736246][   T73]      ip6_route_add+0x1c/0x140
[ 6123.736246][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6123.736246][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6123.736246][   T73]      netlink_rcv_skb+0x130/0x360
[ 6123.736246][   T73]      netlink_unicast+0x449/0x710
[ 6123.736246][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6123.736246][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6123.736246][   T73]      ___sys_sendmsg+0xee/0x170
[ 6123.736246][   T73]      __sys_sendmsg+0xcd/0x170
[ 6123.736246][   T73]      do_syscall_64+0xc6/0x1e0
[ 6123.736246][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6123.736246][   T73] 
[ 6123.738383][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6123.738383][   T73]      dst_init+0x84/0x4a0
[ 6123.738383][   T73]      dst_alloc+0x97/0x150
[ 6123.738383][   T73]      ip6_dst_alloc+0x23/0x90
[ 6123.738383][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6123.738383][   T73]      ip6_pol_route+0x56f/0x840
[ 6123.738383][   T73]      fib6_rule_lookup+0x456/0x630
[ 6123.738383][   T73]      ip6_route_input+0x59c/0xa50
[ 6123.738383][   T73]      ipv6_rcv+0x397/0x810
[ 6123.738383][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6123.738383][   T73]      process_backlog+0x101/0x620
[ 6123.738383][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6123.738383][   T73]      net_rx_action+0x495/0xbe0
[ 6123.738383][   T73]      __do_softirq+0x1b5/0x7f6
[ 6123.738383][   T73] 
[ 6123.740210][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6123.740210][   T73]      netdev_get_by_index+0x5e/0x80
[ 6123.740210][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6123.740210][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6123.740210][   T73]      ip6_route_add+0x1c/0x140
[ 6123.740210][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6123.740210][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6123.740210][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6123.740210][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6123.740210][   T73]      netlink_rcv_skb+0x130/0x360
[ 6123.740210][   T73]      netlink_unicast+0x449/0x710
[ 6123.740210][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6123.740210][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6123.740210][   T73]      ___sys_sendmsg+0xee/0x170
[ 6123.740210][   T73]      __sys_sendmsg+0xcd/0x170
[ 6123.740210][   T73]      do_syscall_64+0xc6/0x1e0
[ 6123.740210][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6123.740210][   T73] 
[ 6123.742458][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6123.742458][   T73]      netdev_get_by_index+0x5e/0x80
[ 6123.742458][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6123.742458][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6123.742458][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6123.742458][   T73]      ipv6_add_addr+0x411/0x2000
[ 6123.742458][   T73]      inet6_addr_add+0x30e/0xa40
[ 6123.742458][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6123.742458][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6123.742458][   T73]      netlink_rcv_skb+0x130/0x360
[ 6123.742458][   T73]      netlink_unicast+0x449/0x710
[ 6123.742458][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6123.742458][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6123.742458][   T73]      ___sys_sendmsg+0xee/0x170
[ 6123.742458][   T73]      __sys_sendmsg+0xcd/0x170
[ 6123.742458][   T73]      do_syscall_64+0xc6/0x1e0
[ 6123.742458][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6123.742458][   T73] 
[ 6123.744680][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6123.744680][   T73]      netdev_get_by_index+0x5e/0x80
[ 6123.744680][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6123.744680][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6123.744680][   T73]      ip6_route_add+0x1c/0x140
[ 6123.744680][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6123.744680][   T73]      addrconf_add_dev+0xe2/0x170
[ 6123.744680][   T73]      inet6_addr_add+0x12f/0xa40
[ 6123.744680][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6123.744680][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6123.744680][   T73]      netlink_rcv_skb+0x130/0x360
[ 6123.744680][   T73]      netlink_unicast+0x449/0x710
[ 6123.744680][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6123.744680][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6123.744680][   T73]      ___sys_sendmsg+0xee/0x170
[ 6123.744680][   T73]      __sys_sendmsg+0xcd/0x170
[ 6123.744680][   T73]      do_syscall_64+0xc6/0x1e0
[ 6123.744680][   T73] 
[ 6123.746889][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6123.746889][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6123.746889][   T73]      ipv6_find_idev+0x102/0x170
[ 6123.746889][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6123.746889][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6123.746889][   T73]      netlink_rcv_skb+0x130/0x360
[ 6123.746889][   T73]      netlink_unicast+0x449/0x710
[ 6123.746889][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6123.746889][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6123.746889][   T73]      ___sys_sendmsg+0xee/0x170
[ 6123.746889][   T73]      __sys_sendmsg+0xcd/0x170
[ 6123.746889][   T73]      do_syscall_64+0xc6/0x1e0
[ 6123.746889][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6123.746889][   T73] 
[ 6123.748623][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6123.748623][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6123.748623][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6123.748623][   T73]      ipv6_find_idev+0x102/0x170
[ 6123.748623][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6123.748623][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6123.748623][   T73]      netlink_rcv_skb+0x130/0x360
[ 6123.748623][   T73]      netlink_unicast+0x449/0x710
[ 6123.748623][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6123.748623][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6123.748623][   T73]      ___sys_sendmsg+0xee/0x170
[ 6123.748623][   T73]      __sys_sendmsg+0xcd/0x170
[ 6123.748623][   T73]      do_syscall_64+0xc6/0x1e0
[ 6123.748623][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6123.748623][   T73] 
[ 6123.750541][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6123.750858][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6123.750858][   T73]      netdev_get_by_index+0x5e/0x80
[ 6123.750858][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6123.750858][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6123.750858][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6123.750858][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6123.750858][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6123.750858][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6123.750858][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6123.750858][   T73]      addrconf_dad_begin+0x310/0x670
[ 6123.750858][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6123.750858][   T73]      process_one_work+0x84d/0x18a0
[ 6123.750858][   T73]      worker_thread+0x587/0xd30
[ 6123.750858][   T73]      kthread+0x28a/0x350
[ 6123.750858][   T73]      ret_from_fork+0x31/0x70
[ 6123.750858][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6123.750858][   T73] 
[ 6123.752982][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6123.752982][   T73]      netdev_get_by_index+0x5e/0x80
[ 6123.752982][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6123.752982][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6123.752982][   T73]      ip6_route_add+0x1c/0x140
[ 6123.752982][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6123.752982][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6123.752982][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6123.752982][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6123.752982][   T73]      netlink_rcv_skb+0x130/0x360
[ 6123.752982][   T73]      netlink_unicast+0x449/0x710
[ 6123.752982][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6123.752982][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6123.752982][   T73]      ___sys_sendmsg+0xee/0x170
[ 6123.752982][   T73]      __sys_sendmsg+0xcd/0x170
[ 6123.752982][   T73]      do_syscall_64+0xc6/0x1e0
[ 6123.752982][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6123.752982][   T73] 
[ 6123.755255][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6123.755255][   T73]      netdev_get_by_index+0x5e/0x80
[ 6123.755255][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6123.755255][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6123.755255][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6123.755255][   T73]      ipv6_add_addr+0x411/0x2000
[ 6123.755255][   T73]      inet6_addr_add+0x30e/0xa40
[ 6123.755255][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6123.755255][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6123.755255][   T73]      netlink_rcv_skb+0x130/0x360
[ 6123.755255][   T73]      netlink_unicast+0x449/0x710
[ 6123.755255][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6123.755255][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6123.755255][   T73]      ___sys_sendmsg+0xee/0x170
[ 6123.755255][   T73]      __sys_sendmsg+0xcd/0x170
[ 6123.755255][   T73]      do_syscall_64+0xc6/0x1e0
[ 6123.755255][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6123.755255][   T73] 
[ 6123.757524][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6123.757524][   T73]      netdev_get_by_index+0x5e/0x80
[ 6123.757524][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6123.757524][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6123.757524][   T73]      ip6_route_add+0x1c/0x140
[ 6123.757524][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6123.757524][   T73]      addrconf_add_dev+0xe2/0x170
[ 6123.757524][   T73]      inet6_addr_add+0x12f/0xa40
[ 6123.757524][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6123.757524][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6123.757524][   T73]      netlink_rcv_skb+0x130/0x360
[ 6123.757524][   T73]      netlink_unicast+0x449/0x710
[ 6123.757524][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6123.757524][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6123.757524][   T73]      ___sys_sendmsg+0xee/0x170
[ 6123.757524][   T73]      __sys_sendmsg+0xcd/0x170
[ 6123.757524][   T73]      do_syscall_64+0xc6/0x1e0
[ 6123.757524][   T73] 
[ 6123.759752][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6123.759752][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6123.759752][   T73]      ipv6_find_idev+0x102/0x170
[ 6123.759752][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6123.759752][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6123.759752][   T73]      netlink_rcv_skb+0x130/0x360
[ 6123.759752][   T73]      netlink_unicast+0x449/0x710
[ 6123.759752][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6123.759752][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6123.759752][   T73]      ___sys_sendmsg+0xee/0x170
[ 6123.759752][   T73]      __sys_sendmsg+0xcd/0x170
[ 6123.759752][   T73]      do_syscall_64+0xc6/0x1e0
[ 6123.759752][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6123.759752][   T73] 
[ 6123.761507][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6123.761507][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6123.761507][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6123.761507][   T73]      ipv6_find_idev+0x102/0x170
[ 6123.761507][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6123.761507][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6123.761507][   T73]      netlink_rcv_skb+0x130/0x360
[ 6123.761507][   T73]      netlink_unicast+0x449/0x710
[ 6123.761507][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6123.761507][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6123.761507][   T73]      ___sys_sendmsg+0xee/0x170
[ 6123.761507][   T73]      __sys_sendmsg+0xcd/0x170
[ 6123.761507][   T73]      do_syscall_64+0xc6/0x1e0
[ 6123.761507][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6123.761507][   T73] 
[ 6123.763414][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6123.763722][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6123.763722][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6123.763722][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6123.763722][   T73]      fib6_nh_init+0xa22/0x1580
[ 6123.763722][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6123.763722][   T73]      ip6_route_add+0x1c/0x140
[ 6123.763722][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6123.763722][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6123.763722][   T73]      netlink_rcv_skb+0x130/0x360
[ 6123.763722][   T73]      netlink_unicast+0x449/0x710
[ 6123.763722][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6123.763722][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6123.763722][   T73]      ___sys_sendmsg+0xee/0x170
[ 6123.763722][   T73]      __sys_sendmsg+0xcd/0x170
[ 6123.763722][   T73]      do_syscall_64+0xc6/0x1e0
[ 6123.763722][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6123.763722][   T73] 
[ 6123.765939][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6123.765939][   T73]      dst_init+0x84/0x4a0
[ 6123.765939][   T73]      dst_alloc+0x97/0x150
[ 6123.765939][   T73]      ip6_dst_alloc+0x23/0x90
[ 6123.765939][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6123.765939][   T73]      ip6_pol_route+0x56f/0x840
[ 6123.765939][   T73]      fib6_rule_lookup+0x456/0x630
[ 6123.765939][   T73]      ip6_route_input+0x59c/0xa50
[ 6123.765939][   T73]      ipv6_rcv+0x397/0x810
[ 6123.765939][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6123.765939][   T73]      process_backlog+0x101/0x620
[ 6123.765939][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6123.765939][   T73]      net_rx_action+0x495/0xbe0
[ 6123.765939][   T73]      __do_softirq+0x1b5/0x7f6
[ 6123.765939][   T73] 
[ 6123.767882][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6123.767882][   T73]      netdev_get_by_index+0x5e/0x80
[ 6123.767882][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6123.767882][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6123.767882][   T73]      ip6_route_add+0x1c/0x140
[ 6123.767882][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6123.767882][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6123.767882][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6123.767882][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6123.767882][   T73]      netlink_rcv_skb+0x130/0x360
[ 6123.767882][   T73]      netlink_unicast+0x449/0x710
[ 6123.767882][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6123.767882][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6123.767882][   T73]      ___sys_sendmsg+0xee/0x170
[ 6123.767882][   T73]      __sys_sendmsg+0xcd/0x170
[ 6123.767882][   T73]      do_syscall_64+0xc6/0x1e0
[ 6123.767882][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6123.767882][   T73] 
[ 6123.770312][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6123.770312][   T73]      netdev_get_by_index+0x5e/0x80
[ 6123.770312][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6123.770312][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6123.770312][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6123.770312][   T73]      ipv6_add_addr+0x411/0x2000
[ 6123.770312][   T73]      inet6_addr_add+0x30e/0xa40
[ 6123.770312][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6123.770312][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6123.770312][   T73]      netlink_rcv_skb+0x130/0x360
[ 6123.770312][   T73]      netlink_unicast+0x449/0x710
[ 6123.770312][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6123.770312][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6123.770312][   T73]      ___sys_sendmsg+0xee/0x170
[ 6123.770312][   T73]      __sys_sendmsg+0xcd/0x170
[ 6123.770312][   T73]      do_syscall_64+0xc6/0x1e0
[ 6123.770312][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6123.770312][   T73] 
[ 6123.772643][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6123.772643][   T73]      netdev_get_by_index+0x5e/0x80
[ 6123.772643][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6123.772643][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6123.772643][   T73]      ip6_route_add+0x1c/0x140
[ 6123.772643][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6123.772643][   T73]      addrconf_add_dev+0xe2/0x170
[ 6123.772643][   T73]      inet6_addr_add+0x12f/0xa40
[ 6123.772643][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6123.772643][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6123.772643][   T73]      netlink_rcv_skb+0x130/0x360
[ 6123.772643][   T73]      netlink_unicast+0x449/0x710
[ 6123.772643][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6123.772643][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6123.772643][   T73]      ___sys_sendmsg+0xee/0x170
[ 6123.772643][   T73]      __sys_sendmsg+0xcd/0x170
[ 6123.772643][   T73]      do_syscall_64+0xc6/0x1e0
[ 6123.772643][   T73] 
[ 6123.774947][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6123.774947][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6123.774947][   T73]      ipv6_find_idev+0x102/0x170
[ 6123.774947][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6123.774947][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6123.774947][   T73]      netlink_rcv_skb+0x130/0x360
[ 6123.774947][   T73]      netlink_unicast+0x449/0x710
[ 6123.774947][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6123.774947][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6123.774947][   T73]      ___sys_sendmsg+0xee/0x170
[ 6123.774947][   T73]      __sys_sendmsg+0xcd/0x170
[ 6123.774947][   T73]      do_syscall_64+0xc6/0x1e0
[ 6123.774947][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6123.774947][   T73] 
[ 6123.776798][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6123.776798][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6123.776798][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6123.776798][   T73]      ipv6_find_idev+0x102/0x170
[ 6123.776798][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6123.776798][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6123.776798][   T73]      netlink_rcv_skb+0x130/0x360
[ 6123.776798][   T73]      netlink_unicast+0x449/0x710
[ 6123.776798][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6123.776798][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6123.776798][   T73]      ___sys_sendmsg+0xee/0x170
[ 6123.776798][   T73]      __sys_sendmsg+0xcd/0x170
[ 6123.776798][   T73]      do_syscall_64+0xc6/0x1e0
[ 6123.776798][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6123.776798][   T73] 
[ 6123.778768][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6123.779067][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6123.779067][   T73]      netdev_get_by_index+0x5e/0x80
[ 6123.779067][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6123.779067][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6123.779067][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6123.779067][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6123.779067][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6123.779067][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6123.779067][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6123.779067][   T73]      addrconf_dad_begin+0x310/0x670
[ 6123.779067][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6123.779067][   T73]      process_one_work+0x84d/0x18a0
[ 6123.779067][   T73]      worker_thread+0x587/0xd30
[ 6123.779067][   T73]      kthread+0x28a/0x350
[ 6123.779067][   T73]      ret_from_fork+0x31/0x70
[ 6123.779067][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6123.779067][   T73] 
[ 6123.781327][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6123.781327][   T73]      netdev_get_by_index+0x5e/0x80
[ 6123.781327][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6123.781327][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6123.781327][   T73]      ip6_route_add+0x1c/0x140
[ 6123.781327][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6123.781327][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6123.781327][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6123.781327][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6123.781327][   T73]      netlink_rcv_skb+0x130/0x360
[ 6123.781327][   T73]      netlink_unicast+0x449/0x710
[ 6123.781327][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6123.781327][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6123.781327][   T73]      ___sys_sendmsg+0xee/0x170
[ 6123.781327][   T73]      __sys_sendmsg+0xcd/0x170
[ 6123.781327][   T73]      do_syscall_64+0xc6/0x1e0
[ 6123.781327][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6123.781327][   T73] 
[ 6123.783721][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6123.783721][   T73]      netdev_get_by_index+0x5e/0x80
[ 6123.783721][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6123.783721][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6123.783721][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6123.783721][   T73]      ipv6_add_addr+0x411/0x2000
[ 6123.783721][   T73]      inet6_addr_add+0x30e/0xa40
[ 6123.783721][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6123.783721][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6123.783721][   T73]      netlink_rcv_skb+0x130/0x360
[ 6123.783721][   T73]      netlink_unicast+0x449/0x710
[ 6123.783721][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6123.783721][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6123.783721][   T73]      ___sys_sendmsg+0xee/0x170
[ 6123.783721][   T73]      __sys_sendmsg+0xcd/0x170
[ 6123.783721][   T73]      do_syscall_64+0xc6/0x1e0
[ 6123.783721][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6123.783721][   T73] 
[ 6123.786150][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6123.786150][   T73]      netdev_get_by_index+0x5e/0x80
[ 6123.786150][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6123.786150][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6123.786150][   T73]      ip6_route_add+0x1c/0x140
[ 6123.786150][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6123.786150][   T73]      addrconf_add_dev+0xe2/0x170
[ 6123.786150][   T73]      inet6_addr_add+0x12f/0xa40
[ 6123.786150][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6123.786150][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6123.786150][   T73]      netlink_rcv_skb+0x130/0x360
[ 6123.786150][   T73]      netlink_unicast+0x449/0x710
[ 6123.786150][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6123.786150][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6123.786150][   T73]      ___sys_sendmsg+0xee/0x170
[ 6123.786150][   T73]      __sys_sendmsg+0xcd/0x170
[ 6123.786150][   T73]      do_syscall_64+0xc6/0x1e0
[ 6123.786150][   T73] 
[ 6123.788450][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6123.788450][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6123.788450][   T73]      ipv6_find_idev+0x102/0x170
[ 6123.788450][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6123.788450][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6123.788450][   T73]      netlink_rcv_skb+0x130/0x360
[ 6123.788450][   T73]      netlink_unicast+0x449/0x710
[ 6123.788450][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6123.788450][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6123.788450][   T73]      ___sys_sendmsg+0xee/0x170
[ 6123.788450][   T73]      __sys_sendmsg+0xcd/0x170
[ 6123.788450][   T73]      do_syscall_64+0xc6/0x1e0
[ 6123.788450][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6123.788450][   T73] 
[ 6123.790271][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6123.790271][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6123.790271][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6123.790271][   T73]      ipv6_find_idev+0x102/0x170
[ 6123.790271][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6123.790271][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6123.790271][   T73]      netlink_rcv_skb+0x130/0x360
[ 6123.790271][   T73]      netlink_unicast+0x449/0x710
[ 6123.790271][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6123.790271][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6123.790271][   T73]      ___sys_sendmsg+0xee/0x170
[ 6123.790271][   T73]      __sys_sendmsg+0xcd/0x170
[ 6123.790271][   T73]      do_syscall_64+0xc6/0x1e0
[ 6123.790271][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6123.790271][   T73] 
[ 6133.863794][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6133.864289][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6133.864289][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6133.864289][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6133.864289][   T73]      fib6_nh_init+0xa22/0x1580
[ 6133.864289][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6133.864289][   T73]      ip6_route_add+0x1c/0x140
[ 6133.864289][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6133.864289][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6133.864289][   T73]      netlink_rcv_skb+0x130/0x360
[ 6133.864289][   T73]      netlink_unicast+0x449/0x710
[ 6133.864289][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6133.864289][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6133.864289][   T73]      ___sys_sendmsg+0xee/0x170
[ 6133.864289][   T73]      __sys_sendmsg+0xcd/0x170
[ 6133.864289][   T73]      do_syscall_64+0xc6/0x1e0
[ 6133.864289][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6133.864289][   T73] 
[ 6133.866265][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6133.866265][   T73]      dst_init+0x84/0x4a0
[ 6133.866265][   T73]      dst_alloc+0x97/0x150
[ 6133.866265][   T73]      ip6_dst_alloc+0x23/0x90
[ 6133.866265][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6133.866265][   T73]      ip6_pol_route+0x56f/0x840
[ 6133.866265][   T73]      fib6_rule_lookup+0x456/0x630
[ 6133.866265][   T73]      ip6_route_input+0x59c/0xa50
[ 6133.866265][   T73]      ipv6_rcv+0x397/0x810
[ 6133.866265][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6133.866265][   T73]      process_backlog+0x101/0x620
[ 6133.866265][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6133.866265][   T73]      net_rx_action+0x495/0xbe0
[ 6133.866265][   T73]      __do_softirq+0x1b5/0x7f6
[ 6133.866265][   T73] 
[ 6133.867934][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6133.867934][   T73]      netdev_get_by_index+0x5e/0x80
[ 6133.867934][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6133.867934][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6133.867934][   T73]      ip6_route_add+0x1c/0x140
[ 6133.867934][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6133.867934][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6133.867934][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6133.867934][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6133.867934][   T73]      netlink_rcv_skb+0x130/0x360
[ 6133.867934][   T73]      netlink_unicast+0x449/0x710
[ 6133.867934][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6133.867934][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6133.867934][   T73]      ___sys_sendmsg+0xee/0x170
[ 6133.867934][   T73]      __sys_sendmsg+0xcd/0x170
[ 6133.867934][   T73]      do_syscall_64+0xc6/0x1e0
[ 6133.867934][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6133.867934][   T73] 
[ 6133.869973][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6133.869973][   T73]      netdev_get_by_index+0x5e/0x80
[ 6133.869973][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6133.869973][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6133.869973][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6133.869973][   T73]      ipv6_add_addr+0x411/0x2000
[ 6133.869973][   T73]      inet6_addr_add+0x30e/0xa40
[ 6133.869973][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6133.869973][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6133.869973][   T73]      netlink_rcv_skb+0x130/0x360
[ 6133.869973][   T73]      netlink_unicast+0x449/0x710
[ 6133.869973][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6133.869973][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6133.869973][   T73]      ___sys_sendmsg+0xee/0x170
[ 6133.869973][   T73]      __sys_sendmsg+0xcd/0x170
[ 6133.869973][   T73]      do_syscall_64+0xc6/0x1e0
[ 6133.869973][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6133.869973][   T73] 
[ 6133.872015][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6133.872015][   T73]      netdev_get_by_index+0x5e/0x80
[ 6133.872015][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6133.872015][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6133.872015][   T73]      ip6_route_add+0x1c/0x140
[ 6133.872015][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6133.872015][   T73]      addrconf_add_dev+0xe2/0x170
[ 6133.872015][   T73]      inet6_addr_add+0x12f/0xa40
[ 6133.872015][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6133.872015][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6133.872015][   T73]      netlink_rcv_skb+0x130/0x360
[ 6133.872015][   T73]      netlink_unicast+0x449/0x710
[ 6133.872015][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6133.872015][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6133.872015][   T73]      ___sys_sendmsg+0xee/0x170
[ 6133.872015][   T73]      __sys_sendmsg+0xcd/0x170
[ 6133.872015][   T73]      do_syscall_64+0xc6/0x1e0
[ 6133.872015][   T73] 
[ 6133.874010][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6133.874010][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6133.874010][   T73]      ipv6_find_idev+0x102/0x170
[ 6133.874010][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6133.874010][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6133.874010][   T73]      netlink_rcv_skb+0x130/0x360
[ 6133.874010][   T73]      netlink_unicast+0x449/0x710
[ 6133.874010][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6133.874010][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6133.874010][   T73]      ___sys_sendmsg+0xee/0x170
[ 6133.874010][   T73]      __sys_sendmsg+0xcd/0x170
[ 6133.874010][   T73]      do_syscall_64+0xc6/0x1e0
[ 6133.874010][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6133.874010][   T73] 
[ 6133.875575][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6133.875575][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6133.875575][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6133.875575][   T73]      ipv6_find_idev+0x102/0x170
[ 6133.875575][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6133.875575][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6133.875575][   T73]      netlink_rcv_skb+0x130/0x360
[ 6133.875575][   T73]      netlink_unicast+0x449/0x710
[ 6133.875575][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6133.875575][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6133.875575][   T73]      ___sys_sendmsg+0xee/0x170
[ 6133.875575][   T73]      __sys_sendmsg+0xcd/0x170
[ 6133.875575][   T73]      do_syscall_64+0xc6/0x1e0
[ 6133.875575][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6133.875575][   T73] 
[ 6133.877318][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6133.877614][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6133.877614][   T73]      netdev_get_by_index+0x5e/0x80
[ 6133.877614][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6133.877614][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6133.877614][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6133.877614][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6133.877614][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6133.877614][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6133.877614][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6133.877614][   T73]      addrconf_dad_begin+0x310/0x670
[ 6133.877614][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6133.877614][   T73]      process_one_work+0x84d/0x18a0
[ 6133.877614][   T73]      worker_thread+0x587/0xd30
[ 6133.877614][   T73]      kthread+0x28a/0x350
[ 6133.877614][   T73]      ret_from_fork+0x31/0x70
[ 6133.877614][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6133.877614][   T73] 
[ 6133.879549][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6133.879549][   T73]      netdev_get_by_index+0x5e/0x80
[ 6133.879549][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6133.879549][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6133.879549][   T73]      ip6_route_add+0x1c/0x140
[ 6133.879549][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6133.879549][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6133.879549][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6133.879549][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6133.879549][   T73]      netlink_rcv_skb+0x130/0x360
[ 6133.879549][   T73]      netlink_unicast+0x449/0x710
[ 6133.879549][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6133.879549][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6133.879549][   T73]      ___sys_sendmsg+0xee/0x170
[ 6133.879549][   T73]      __sys_sendmsg+0xcd/0x170
[ 6133.879549][   T73]      do_syscall_64+0xc6/0x1e0
[ 6133.879549][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6133.879549][   T73] 
[ 6133.881582][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6133.881582][   T73]      netdev_get_by_index+0x5e/0x80
[ 6133.881582][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6133.881582][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6133.881582][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6133.881582][   T73]      ipv6_add_addr+0x411/0x2000
[ 6133.881582][   T73]      inet6_addr_add+0x30e/0xa40
[ 6133.881582][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6133.881582][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6133.881582][   T73]      netlink_rcv_skb+0x130/0x360
[ 6133.881582][   T73]      netlink_unicast+0x449/0x710
[ 6133.881582][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6133.881582][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6133.881582][   T73]      ___sys_sendmsg+0xee/0x170
[ 6133.881582][   T73]      __sys_sendmsg+0xcd/0x170
[ 6133.881582][   T73]      do_syscall_64+0xc6/0x1e0
[ 6133.881582][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6133.881582][   T73] 
[ 6133.883616][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6133.883616][   T73]      netdev_get_by_index+0x5e/0x80
[ 6133.883616][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6133.883616][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6133.883616][   T73]      ip6_route_add+0x1c/0x140
[ 6133.883616][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6133.883616][   T73]      addrconf_add_dev+0xe2/0x170
[ 6133.883616][   T73]      inet6_addr_add+0x12f/0xa40
[ 6133.883616][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6133.883616][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6133.883616][   T73]      netlink_rcv_skb+0x130/0x360
[ 6133.883616][   T73]      netlink_unicast+0x449/0x710
[ 6133.883616][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6133.883616][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6133.883616][   T73]      ___sys_sendmsg+0xee/0x170
[ 6133.883616][   T73]      __sys_sendmsg+0xcd/0x170
[ 6133.883616][   T73]      do_syscall_64+0xc6/0x1e0
[ 6133.883616][   T73] 
[ 6133.885615][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6133.885615][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6133.885615][   T73]      ipv6_find_idev+0x102/0x170
[ 6133.885615][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6133.885615][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6133.885615][   T73]      netlink_rcv_skb+0x130/0x360
[ 6133.885615][   T73]      netlink_unicast+0x449/0x710
[ 6133.885615][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6133.885615][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6133.885615][   T73]      ___sys_sendmsg+0xee/0x170
[ 6133.885615][   T73]      __sys_sendmsg+0xcd/0x170
[ 6133.885615][   T73]      do_syscall_64+0xc6/0x1e0
[ 6133.885615][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6133.885615][   T73] 
[ 6133.887184][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6133.887184][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6133.887184][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6133.887184][   T73]      ipv6_find_idev+0x102/0x170
[ 6133.887184][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6133.887184][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6133.887184][   T73]      netlink_rcv_skb+0x130/0x360
[ 6133.887184][   T73]      netlink_unicast+0x449/0x710
[ 6133.887184][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6133.887184][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6133.887184][   T73]      ___sys_sendmsg+0xee/0x170
[ 6133.887184][   T73]      __sys_sendmsg+0xcd/0x170
[ 6133.887184][   T73]      do_syscall_64+0xc6/0x1e0
[ 6133.887184][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6133.887184][   T73] 
[ 6133.888900][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6133.889195][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6133.889195][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6133.889195][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6133.889195][   T73]      fib6_nh_init+0xa22/0x1580
[ 6133.889195][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6133.889195][   T73]      ip6_route_add+0x1c/0x140
[ 6133.889195][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6133.889195][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6133.889195][   T73]      netlink_rcv_skb+0x130/0x360
[ 6133.889195][   T73]      netlink_unicast+0x449/0x710
[ 6133.889195][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6133.889195][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6133.889195][   T73]      ___sys_sendmsg+0xee/0x170
[ 6133.889195][   T73]      __sys_sendmsg+0xcd/0x170
[ 6133.889195][   T73]      do_syscall_64+0xc6/0x1e0
[ 6133.889195][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6133.889195][   T73] 
[ 6133.891340][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6133.891340][   T73]      dst_init+0x84/0x4a0
[ 6133.891340][   T73]      dst_alloc+0x97/0x150
[ 6133.891340][   T73]      ip6_dst_alloc+0x23/0x90
[ 6133.891340][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6133.891340][   T73]      ip6_pol_route+0x56f/0x840
[ 6133.891340][   T73]      fib6_rule_lookup+0x456/0x630
[ 6133.891340][   T73]      ip6_route_input+0x59c/0xa50
[ 6133.891340][   T73]      ipv6_rcv+0x397/0x810
[ 6133.891340][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6133.891340][   T73]      process_backlog+0x101/0x620
[ 6133.891340][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6133.891340][   T73]      net_rx_action+0x495/0xbe0
[ 6133.891340][   T73]      __do_softirq+0x1b5/0x7f6
[ 6133.891340][   T73] 
[ 6133.893253][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6133.893253][   T73]      netdev_get_by_index+0x5e/0x80
[ 6133.893253][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6133.893253][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6133.893253][   T73]      ip6_route_add+0x1c/0x140
[ 6133.893253][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6133.893253][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6133.893253][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6133.893253][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6133.893253][   T73]      netlink_rcv_skb+0x130/0x360
[ 6133.893253][   T73]      netlink_unicast+0x449/0x710
[ 6133.893253][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6133.893253][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6133.893253][   T73]      ___sys_sendmsg+0xee/0x170
[ 6133.893253][   T73]      __sys_sendmsg+0xcd/0x170
[ 6133.893253][   T73]      do_syscall_64+0xc6/0x1e0
[ 6133.893253][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6133.893253][   T73] 
[ 6133.895529][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6133.895529][   T73]      netdev_get_by_index+0x5e/0x80
[ 6133.895529][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6133.895529][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6133.895529][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6133.895529][   T73]      ipv6_add_addr+0x411/0x2000
[ 6133.895529][   T73]      inet6_addr_add+0x30e/0xa40
[ 6133.895529][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6133.895529][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6133.895529][   T73]      netlink_rcv_skb+0x130/0x360
[ 6133.895529][   T73]      netlink_unicast+0x449/0x710
[ 6133.895529][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6133.895529][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6133.895529][   T73]      ___sys_sendmsg+0xee/0x170
[ 6133.895529][   T73]      __sys_sendmsg+0xcd/0x170
[ 6133.895529][   T73]      do_syscall_64+0xc6/0x1e0
[ 6133.895529][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6133.895529][   T73] 
[ 6133.897817][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6133.897817][   T73]      netdev_get_by_index+0x5e/0x80
[ 6133.897817][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6133.897817][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6133.897817][   T73]      ip6_route_add+0x1c/0x140
[ 6133.897817][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6133.897817][   T73]      addrconf_add_dev+0xe2/0x170
[ 6133.897817][   T73]      inet6_addr_add+0x12f/0xa40
[ 6133.897817][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6133.897817][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6133.897817][   T73]      netlink_rcv_skb+0x130/0x360
[ 6133.897817][   T73]      netlink_unicast+0x449/0x710
[ 6133.897817][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6133.897817][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6133.897817][   T73]      ___sys_sendmsg+0xee/0x170
[ 6133.897817][   T73]      __sys_sendmsg+0xcd/0x170
[ 6133.897817][   T73]      do_syscall_64+0xc6/0x1e0
[ 6133.897817][   T73] 
[ 6133.900077][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6133.900077][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6133.900077][   T73]      ipv6_find_idev+0x102/0x170
[ 6133.900077][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6133.900077][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6133.900077][   T73]      netlink_rcv_skb+0x130/0x360
[ 6133.900077][   T73]      netlink_unicast+0x449/0x710
[ 6133.900077][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6133.900077][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6133.900077][   T73]      ___sys_sendmsg+0xee/0x170
[ 6133.900077][   T73]      __sys_sendmsg+0xcd/0x170
[ 6133.900077][   T73]      do_syscall_64+0xc6/0x1e0
[ 6133.900077][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6133.900077][   T73] 
[ 6133.901884][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6133.901884][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6133.901884][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6133.901884][   T73]      ipv6_find_idev+0x102/0x170
[ 6133.901884][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6133.901884][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6133.901884][   T73]      netlink_rcv_skb+0x130/0x360
[ 6133.901884][   T73]      netlink_unicast+0x449/0x710
[ 6133.901884][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6133.901884][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6133.901884][   T73]      ___sys_sendmsg+0xee/0x170
[ 6133.901884][   T73]      __sys_sendmsg+0xcd/0x170
[ 6133.901884][   T73]      do_syscall_64+0xc6/0x1e0
[ 6133.901884][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6133.901884][   T73] 
[ 6133.903784][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6133.904064][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6133.904064][   T73]      netdev_get_by_index+0x5e/0x80
[ 6133.904064][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6133.904064][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6133.904064][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6133.904064][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6133.904064][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6133.904064][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6133.904064][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6133.904064][   T73]      addrconf_dad_begin+0x310/0x670
[ 6133.904064][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6133.904064][   T73]      process_one_work+0x84d/0x18a0
[ 6133.904064][   T73]      worker_thread+0x587/0xd30
[ 6133.904064][   T73]      kthread+0x28a/0x350
[ 6133.904064][   T73]      ret_from_fork+0x31/0x70
[ 6133.904064][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6133.904064][   T73] 
[ 6133.906270][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6133.906270][   T73]      netdev_get_by_index+0x5e/0x80
[ 6133.906270][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6133.906270][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6133.906270][   T73]      ip6_route_add+0x1c/0x140
[ 6133.906270][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6133.906270][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6133.906270][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6133.906270][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6133.906270][   T73]      netlink_rcv_skb+0x130/0x360
[ 6133.906270][   T73]      netlink_unicast+0x449/0x710
[ 6133.906270][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6133.906270][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6133.906270][   T73]      ___sys_sendmsg+0xee/0x170
[ 6133.906270][   T73]      __sys_sendmsg+0xcd/0x170
[ 6133.906270][   T73]      do_syscall_64+0xc6/0x1e0
[ 6133.906270][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6133.906270][   T73] 
[ 6133.908574][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6133.908574][   T73]      netdev_get_by_index+0x5e/0x80
[ 6133.908574][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6133.908574][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6133.908574][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6133.908574][   T73]      ipv6_add_addr+0x411/0x2000
[ 6133.908574][   T73]      inet6_addr_add+0x30e/0xa40
[ 6133.908574][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6133.908574][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6133.908574][   T73]      netlink_rcv_skb+0x130/0x360
[ 6133.908574][   T73]      netlink_unicast+0x449/0x710
[ 6133.908574][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6133.908574][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6133.908574][   T73]      ___sys_sendmsg+0xee/0x170
[ 6133.908574][   T73]      __sys_sendmsg+0xcd/0x170
[ 6133.908574][   T73]      do_syscall_64+0xc6/0x1e0
[ 6133.908574][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6133.908574][   T73] 
[ 6133.910928][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6133.910928][   T73]      netdev_get_by_index+0x5e/0x80
[ 6133.910928][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6133.910928][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6133.910928][   T73]      ip6_route_add+0x1c/0x140
[ 6133.910928][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6133.910928][   T73]      addrconf_add_dev+0xe2/0x170
[ 6133.910928][   T73]      inet6_addr_add+0x12f/0xa40
[ 6133.910928][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6133.910928][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6133.910928][   T73]      netlink_rcv_skb+0x130/0x360
[ 6133.910928][   T73]      netlink_unicast+0x449/0x710
[ 6133.910928][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6133.910928][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6133.910928][   T73]      ___sys_sendmsg+0xee/0x170
[ 6133.910928][   T73]      __sys_sendmsg+0xcd/0x170
[ 6133.910928][   T73]      do_syscall_64+0xc6/0x1e0
[ 6133.910928][   T73] 
[ 6133.913108][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6133.913108][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6133.913108][   T73]      ipv6_find_idev+0x102/0x170
[ 6133.913108][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6133.913108][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6133.913108][   T73]      netlink_rcv_skb+0x130/0x360
[ 6133.913108][   T73]      netlink_unicast+0x449/0x710
[ 6133.913108][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6133.913108][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6133.913108][   T73]      ___sys_sendmsg+0xee/0x170
[ 6133.913108][   T73]      __sys_sendmsg+0xcd/0x170
[ 6133.913108][   T73]      do_syscall_64+0xc6/0x1e0
[ 6133.913108][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6133.913108][   T73] 
[ 6133.914864][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6133.914864][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6133.914864][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6133.914864][   T73]      ipv6_find_idev+0x102/0x170
[ 6133.914864][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6133.914864][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6133.914864][   T73]      netlink_rcv_skb+0x130/0x360
[ 6133.914864][   T73]      netlink_unicast+0x449/0x710
[ 6133.914864][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6133.914864][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6133.914864][   T73]      ___sys_sendmsg+0xee/0x170
[ 6133.914864][   T73]      __sys_sendmsg+0xcd/0x170
[ 6133.914864][   T73]      do_syscall_64+0xc6/0x1e0
[ 6133.914864][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6133.914864][   T73] 
[ 6144.167789][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6144.168307][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6144.168307][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6144.168307][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6144.168307][   T73]      fib6_nh_init+0xa22/0x1580
[ 6144.168307][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6144.168307][   T73]      ip6_route_add+0x1c/0x140
[ 6144.168307][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6144.168307][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6144.168307][   T73]      netlink_rcv_skb+0x130/0x360
[ 6144.168307][   T73]      netlink_unicast+0x449/0x710
[ 6144.168307][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6144.168307][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6144.168307][   T73]      ___sys_sendmsg+0xee/0x170
[ 6144.168307][   T73]      __sys_sendmsg+0xcd/0x170
[ 6144.168307][   T73]      do_syscall_64+0xc6/0x1e0
[ 6144.168307][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6144.168307][   T73] 
[ 6144.170234][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6144.170234][   T73]      dst_init+0x84/0x4a0
[ 6144.170234][   T73]      dst_alloc+0x97/0x150
[ 6144.170234][   T73]      ip6_dst_alloc+0x23/0x90
[ 6144.170234][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6144.170234][   T73]      ip6_pol_route+0x56f/0x840
[ 6144.170234][   T73]      fib6_rule_lookup+0x456/0x630
[ 6144.170234][   T73]      ip6_route_input+0x59c/0xa50
[ 6144.170234][   T73]      ipv6_rcv+0x397/0x810
[ 6144.170234][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6144.170234][   T73]      process_backlog+0x101/0x620
[ 6144.170234][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6144.170234][   T73]      net_rx_action+0x495/0xbe0
[ 6144.170234][   T73]      __do_softirq+0x1b5/0x7f6
[ 6144.170234][   T73] 
[ 6144.171920][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6144.171920][   T73]      netdev_get_by_index+0x5e/0x80
[ 6144.171920][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6144.171920][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6144.171920][   T73]      ip6_route_add+0x1c/0x140
[ 6144.171920][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6144.171920][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6144.171920][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6144.171920][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6144.171920][   T73]      netlink_rcv_skb+0x130/0x360
[ 6144.171920][   T73]      netlink_unicast+0x449/0x710
[ 6144.171920][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6144.171920][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6144.171920][   T73]      ___sys_sendmsg+0xee/0x170
[ 6144.171920][   T73]      __sys_sendmsg+0xcd/0x170
[ 6144.171920][   T73]      do_syscall_64+0xc6/0x1e0
[ 6144.171920][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6144.171920][   T73] 
[ 6144.173953][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6144.173953][   T73]      netdev_get_by_index+0x5e/0x80
[ 6144.173953][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6144.173953][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6144.173953][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6144.173953][   T73]      ipv6_add_addr+0x411/0x2000
[ 6144.173953][   T73]      inet6_addr_add+0x30e/0xa40
[ 6144.173953][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6144.173953][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6144.173953][   T73]      netlink_rcv_skb+0x130/0x360
[ 6144.173953][   T73]      netlink_unicast+0x449/0x710
[ 6144.173953][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6144.173953][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6144.173953][   T73]      ___sys_sendmsg+0xee/0x170
[ 6144.173953][   T73]      __sys_sendmsg+0xcd/0x170
[ 6144.173953][   T73]      do_syscall_64+0xc6/0x1e0
[ 6144.173953][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6144.173953][   T73] 
[ 6144.175999][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6144.175999][   T73]      netdev_get_by_index+0x5e/0x80
[ 6144.175999][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6144.175999][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6144.175999][   T73]      ip6_route_add+0x1c/0x140
[ 6144.175999][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6144.175999][   T73]      addrconf_add_dev+0xe2/0x170
[ 6144.175999][   T73]      inet6_addr_add+0x12f/0xa40
[ 6144.175999][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6144.175999][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6144.175999][   T73]      netlink_rcv_skb+0x130/0x360
[ 6144.175999][   T73]      netlink_unicast+0x449/0x710
[ 6144.175999][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6144.175999][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6144.175999][   T73]      ___sys_sendmsg+0xee/0x170
[ 6144.175999][   T73]      __sys_sendmsg+0xcd/0x170
[ 6144.175999][   T73]      do_syscall_64+0xc6/0x1e0
[ 6144.175999][   T73] 
[ 6144.178001][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6144.178001][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6144.178001][   T73]      ipv6_find_idev+0x102/0x170
[ 6144.178001][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6144.178001][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6144.178001][   T73]      netlink_rcv_skb+0x130/0x360
[ 6144.178001][   T73]      netlink_unicast+0x449/0x710
[ 6144.178001][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6144.178001][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6144.178001][   T73]      ___sys_sendmsg+0xee/0x170
[ 6144.178001][   T73]      __sys_sendmsg+0xcd/0x170
[ 6144.178001][   T73]      do_syscall_64+0xc6/0x1e0
[ 6144.178001][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6144.178001][   T73] 
[ 6144.179560][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6144.179560][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6144.179560][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6144.179560][   T73]      ipv6_find_idev+0x102/0x170
[ 6144.179560][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6144.179560][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6144.179560][   T73]      netlink_rcv_skb+0x130/0x360
[ 6144.179560][   T73]      netlink_unicast+0x449/0x710
[ 6144.179560][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6144.179560][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6144.179560][   T73]      ___sys_sendmsg+0xee/0x170
[ 6144.179560][   T73]      __sys_sendmsg+0xcd/0x170
[ 6144.179560][   T73]      do_syscall_64+0xc6/0x1e0
[ 6144.179560][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6144.179560][   T73] 
[ 6144.181422][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6144.181723][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6144.181723][   T73]      netdev_get_by_index+0x5e/0x80
[ 6144.181723][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6144.181723][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6144.181723][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6144.181723][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6144.181723][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6144.181723][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6144.181723][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6144.181723][   T73]      addrconf_dad_begin+0x310/0x670
[ 6144.181723][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6144.181723][   T73]      process_one_work+0x84d/0x18a0
[ 6144.181723][   T73]      worker_thread+0x587/0xd30
[ 6144.181723][   T73]      kthread+0x28a/0x350
[ 6144.181723][   T73]      ret_from_fork+0x31/0x70
[ 6144.181723][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6144.181723][   T73] 
[ 6144.183676][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6144.183676][   T73]      netdev_get_by_index+0x5e/0x80
[ 6144.183676][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6144.183676][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6144.183676][   T73]      ip6_route_add+0x1c/0x140
[ 6144.183676][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6144.183676][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6144.183676][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6144.183676][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6144.183676][   T73]      netlink_rcv_skb+0x130/0x360
[ 6144.183676][   T73]      netlink_unicast+0x449/0x710
[ 6144.183676][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6144.183676][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6144.183676][   T73]      ___sys_sendmsg+0xee/0x170
[ 6144.183676][   T73]      __sys_sendmsg+0xcd/0x170
[ 6144.183676][   T73]      do_syscall_64+0xc6/0x1e0
[ 6144.183676][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6144.183676][   T73] 
[ 6144.185720][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6144.185720][   T73]      netdev_get_by_index+0x5e/0x80
[ 6144.185720][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6144.185720][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6144.185720][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6144.185720][   T73]      ipv6_add_addr+0x411/0x2000
[ 6144.185720][   T73]      inet6_addr_add+0x30e/0xa40
[ 6144.185720][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6144.185720][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6144.185720][   T73]      netlink_rcv_skb+0x130/0x360
[ 6144.185720][   T73]      netlink_unicast+0x449/0x710
[ 6144.185720][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6144.185720][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6144.185720][   T73]      ___sys_sendmsg+0xee/0x170
[ 6144.185720][   T73]      __sys_sendmsg+0xcd/0x170
[ 6144.185720][   T73]      do_syscall_64+0xc6/0x1e0
[ 6144.185720][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6144.185720][   T73] 
[ 6144.187773][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6144.187773][   T73]      netdev_get_by_index+0x5e/0x80
[ 6144.187773][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6144.187773][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6144.187773][   T73]      ip6_route_add+0x1c/0x140
[ 6144.187773][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6144.187773][   T73]      addrconf_add_dev+0xe2/0x170
[ 6144.187773][   T73]      inet6_addr_add+0x12f/0xa40
[ 6144.187773][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6144.187773][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6144.187773][   T73]      netlink_rcv_skb+0x130/0x360
[ 6144.187773][   T73]      netlink_unicast+0x449/0x710
[ 6144.187773][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6144.187773][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6144.187773][   T73]      ___sys_sendmsg+0xee/0x170
[ 6144.187773][   T73]      __sys_sendmsg+0xcd/0x170
[ 6144.187773][   T73]      do_syscall_64+0xc6/0x1e0
[ 6144.187773][   T73] 
[ 6144.189776][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6144.189776][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6144.189776][   T73]      ipv6_find_idev+0x102/0x170
[ 6144.189776][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6144.189776][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6144.189776][   T73]      netlink_rcv_skb+0x130/0x360
[ 6144.189776][   T73]      netlink_unicast+0x449/0x710
[ 6144.189776][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6144.189776][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6144.189776][   T73]      ___sys_sendmsg+0xee/0x170
[ 6144.189776][   T73]      __sys_sendmsg+0xcd/0x170
[ 6144.189776][   T73]      do_syscall_64+0xc6/0x1e0
[ 6144.189776][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6144.189776][   T73] 
[ 6144.191341][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6144.191341][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6144.191341][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6144.191341][   T73]      ipv6_find_idev+0x102/0x170
[ 6144.191341][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6144.191341][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6144.191341][   T73]      netlink_rcv_skb+0x130/0x360
[ 6144.191341][   T73]      netlink_unicast+0x449/0x710
[ 6144.191341][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6144.191341][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6144.191341][   T73]      ___sys_sendmsg+0xee/0x170
[ 6144.191341][   T73]      __sys_sendmsg+0xcd/0x170
[ 6144.191341][   T73]      do_syscall_64+0xc6/0x1e0
[ 6144.191341][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6144.191341][   T73] 
[ 6144.193073][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6144.193352][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6144.193352][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6144.193352][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6144.193352][   T73]      fib6_nh_init+0xa22/0x1580
[ 6144.193352][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6144.193352][   T73]      ip6_route_add+0x1c/0x140
[ 6144.193352][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6144.193352][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6144.193352][   T73]      netlink_rcv_skb+0x130/0x360
[ 6144.193352][   T73]      netlink_unicast+0x449/0x710
[ 6144.193352][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6144.193352][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6144.193352][   T73]      ___sys_sendmsg+0xee/0x170
[ 6144.193352][   T73]      __sys_sendmsg+0xcd/0x170
[ 6144.193352][   T73]      do_syscall_64+0xc6/0x1e0
[ 6144.193352][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6144.193352][   T73] 
[ 6144.195454][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6144.195454][   T73]      dst_init+0x84/0x4a0
[ 6144.195454][   T73]      dst_alloc+0x97/0x150
[ 6144.195454][   T73]      ip6_dst_alloc+0x23/0x90
[ 6144.195454][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6144.195454][   T73]      ip6_pol_route+0x56f/0x840
[ 6144.195454][   T73]      fib6_rule_lookup+0x456/0x630
[ 6144.195454][   T73]      ip6_route_input+0x59c/0xa50
[ 6144.195454][   T73]      ipv6_rcv+0x397/0x810
[ 6144.195454][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6144.195454][   T73]      process_backlog+0x101/0x620
[ 6144.195454][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6144.195454][   T73]      net_rx_action+0x495/0xbe0
[ 6144.195454][   T73]      __do_softirq+0x1b5/0x7f6
[ 6144.195454][   T73] 
[ 6144.199620][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6144.199620][   T73]      netdev_get_by_index+0x5e/0x80
[ 6144.199620][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6144.199620][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6144.199620][   T73]      ip6_route_add+0x1c/0x140
[ 6144.199620][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6144.199620][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6144.199620][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6144.199620][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6144.199620][   T73]      netlink_rcv_skb+0x130/0x360
[ 6144.199620][   T73]      netlink_unicast+0x449/0x710
[ 6144.199620][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6144.199620][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6144.199620][   T73]      ___sys_sendmsg+0xee/0x170
[ 6144.199620][   T73]      __sys_sendmsg+0xcd/0x170
[ 6144.199620][   T73]      do_syscall_64+0xc6/0x1e0
[ 6144.199620][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6144.199620][   T73] 
[ 6144.201906][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6144.201906][   T73]      netdev_get_by_index+0x5e/0x80
[ 6144.201906][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6144.201906][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6144.201906][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6144.201906][   T73]      ipv6_add_addr+0x411/0x2000
[ 6144.201906][   T73]      inet6_addr_add+0x30e/0xa40
[ 6144.201906][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6144.201906][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6144.201906][   T73]      netlink_rcv_skb+0x130/0x360
[ 6144.201906][   T73]      netlink_unicast+0x449/0x710
[ 6144.201906][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6144.201906][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6144.201906][   T73]      ___sys_sendmsg+0xee/0x170
[ 6144.201906][   T73]      __sys_sendmsg+0xcd/0x170
[ 6144.201906][   T73]      do_syscall_64+0xc6/0x1e0
[ 6144.201906][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6144.201906][   T73] 
[ 6144.204180][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6144.204180][   T73]      netdev_get_by_index+0x5e/0x80
[ 6144.204180][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6144.204180][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6144.204180][   T73]      ip6_route_add+0x1c/0x140
[ 6144.204180][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6144.204180][   T73]      addrconf_add_dev+0xe2/0x170
[ 6144.204180][   T73]      inet6_addr_add+0x12f/0xa40
[ 6144.204180][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6144.204180][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6144.204180][   T73]      netlink_rcv_skb+0x130/0x360
[ 6144.204180][   T73]      netlink_unicast+0x449/0x710
[ 6144.204180][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6144.204180][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6144.204180][   T73]      ___sys_sendmsg+0xee/0x170
[ 6144.204180][   T73]      __sys_sendmsg+0xcd/0x170
[ 6144.204180][   T73]      do_syscall_64+0xc6/0x1e0
[ 6144.204180][   T73] 
[ 6144.206446][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6144.206446][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6144.206446][   T73]      ipv6_find_idev+0x102/0x170
[ 6144.206446][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6144.206446][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6144.206446][   T73]      netlink_rcv_skb+0x130/0x360
[ 6144.206446][   T73]      netlink_unicast+0x449/0x710
[ 6144.206446][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6144.206446][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6144.206446][   T73]      ___sys_sendmsg+0xee/0x170
[ 6144.206446][   T73]      __sys_sendmsg+0xcd/0x170
[ 6144.206446][   T73]      do_syscall_64+0xc6/0x1e0
[ 6144.206446][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6144.206446][   T73] 
[ 6144.208266][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6144.208266][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6144.208266][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6144.208266][   T73]      ipv6_find_idev+0x102/0x170
[ 6144.208266][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6144.208266][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6144.208266][   T73]      netlink_rcv_skb+0x130/0x360
[ 6144.208266][   T73]      netlink_unicast+0x449/0x710
[ 6144.208266][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6144.208266][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6144.208266][   T73]      ___sys_sendmsg+0xee/0x170
[ 6144.208266][   T73]      __sys_sendmsg+0xcd/0x170
[ 6144.208266][   T73]      do_syscall_64+0xc6/0x1e0
[ 6144.208266][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6144.208266][   T73] 
[ 6144.210179][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6144.210452][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6144.210452][   T73]      netdev_get_by_index+0x5e/0x80
[ 6144.210452][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6144.210452][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6144.210452][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6144.210452][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6144.210452][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6144.210452][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6144.210452][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6144.210452][   T73]      addrconf_dad_begin+0x310/0x670
[ 6144.210452][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6144.210452][   T73]      process_one_work+0x84d/0x18a0
[ 6144.210452][   T73]      worker_thread+0x587/0xd30
[ 6144.210452][   T73]      kthread+0x28a/0x350
[ 6144.210452][   T73]      ret_from_fork+0x31/0x70
[ 6144.210452][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6144.210452][   T73] 
[ 6144.212665][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6144.212665][   T73]      netdev_get_by_index+0x5e/0x80
[ 6144.212665][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6144.212665][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6144.212665][   T73]      ip6_route_add+0x1c/0x140
[ 6144.212665][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6144.212665][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6144.212665][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6144.212665][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6144.212665][   T73]      netlink_rcv_skb+0x130/0x360
[ 6144.212665][   T73]      netlink_unicast+0x449/0x710
[ 6144.212665][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6144.212665][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6144.212665][   T73]      ___sys_sendmsg+0xee/0x170
[ 6144.212665][   T73]      __sys_sendmsg+0xcd/0x170
[ 6144.212665][   T73]      do_syscall_64+0xc6/0x1e0
[ 6144.212665][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6144.212665][   T73] 
[ 6144.214950][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6144.214950][   T73]      netdev_get_by_index+0x5e/0x80
[ 6144.214950][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6144.214950][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6144.214950][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6144.214950][   T73]      ipv6_add_addr+0x411/0x2000
[ 6144.214950][   T73]      inet6_addr_add+0x30e/0xa40
[ 6144.214950][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6144.214950][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6144.214950][   T73]      netlink_rcv_skb+0x130/0x360
[ 6144.214950][   T73]      netlink_unicast+0x449/0x710
[ 6144.214950][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6144.214950][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6144.214950][   T73]      ___sys_sendmsg+0xee/0x170
[ 6144.214950][   T73]      __sys_sendmsg+0xcd/0x170
[ 6144.214950][   T73]      do_syscall_64+0xc6/0x1e0
[ 6144.214950][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6144.214950][   T73] 
[ 6144.217309][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6144.217309][   T73]      netdev_get_by_index+0x5e/0x80
[ 6144.217309][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6144.217309][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6144.217309][   T73]      ip6_route_add+0x1c/0x140
[ 6144.217309][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6144.217309][   T73]      addrconf_add_dev+0xe2/0x170
[ 6144.217309][   T73]      inet6_addr_add+0x12f/0xa40
[ 6144.217309][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6144.217309][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6144.217309][   T73]      netlink_rcv_skb+0x130/0x360
[ 6144.217309][   T73]      netlink_unicast+0x449/0x710
[ 6144.217309][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6144.217309][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6144.217309][   T73]      ___sys_sendmsg+0xee/0x170
[ 6144.217309][   T73]      __sys_sendmsg+0xcd/0x170
[ 6144.217309][   T73]      do_syscall_64+0xc6/0x1e0
[ 6144.217309][   T73] 
[ 6144.219495][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6144.219495][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6144.219495][   T73]      ipv6_find_idev+0x102/0x170
[ 6144.219495][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6144.219495][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6144.219495][   T73]      netlink_rcv_skb+0x130/0x360
[ 6144.219495][   T73]      netlink_unicast+0x449/0x710
[ 6144.219495][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6144.219495][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6144.219495][   T73]      ___sys_sendmsg+0xee/0x170
[ 6144.219495][   T73]      __sys_sendmsg+0xcd/0x170
[ 6144.219495][   T73]      do_syscall_64+0xc6/0x1e0
[ 6144.219495][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6144.219495][   T73] 
[ 6144.221252][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6144.221252][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6144.221252][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6144.221252][   T73]      ipv6_find_idev+0x102/0x170
[ 6144.221252][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6144.221252][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6144.221252][   T73]      netlink_rcv_skb+0x130/0x360
[ 6144.221252][   T73]      netlink_unicast+0x449/0x710
[ 6144.221252][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6144.221252][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6144.221252][   T73]      ___sys_sendmsg+0xee/0x170
[ 6144.221252][   T73]      __sys_sendmsg+0xcd/0x170
[ 6144.221252][   T73]      do_syscall_64+0xc6/0x1e0
[ 6144.221252][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6144.221252][   T73] 
[ 6154.223753][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6154.224239][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6154.224239][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6154.224239][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6154.224239][   T73]      fib6_nh_init+0xa22/0x1580
[ 6154.224239][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6154.224239][   T73]      ip6_route_add+0x1c/0x140
[ 6154.224239][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6154.224239][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6154.224239][   T73]      netlink_rcv_skb+0x130/0x360
[ 6154.224239][   T73]      netlink_unicast+0x449/0x710
[ 6154.224239][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6154.224239][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6154.224239][   T73]      ___sys_sendmsg+0xee/0x170
[ 6154.224239][   T73]      __sys_sendmsg+0xcd/0x170
[ 6154.224239][   T73]      do_syscall_64+0xc6/0x1e0
[ 6154.224239][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6154.224239][   T73] 
[ 6154.226733][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6154.226733][   T73]      dst_init+0x84/0x4a0
[ 6154.226733][   T73]      dst_alloc+0x97/0x150
[ 6154.226733][   T73]      ip6_dst_alloc+0x23/0x90
[ 6154.226733][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6154.226733][   T73]      ip6_pol_route+0x56f/0x840
[ 6154.226733][   T73]      fib6_rule_lookup+0x456/0x630
[ 6154.226733][   T73]      ip6_route_input+0x59c/0xa50
[ 6154.226733][   T73]      ipv6_rcv+0x397/0x810
[ 6154.226733][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6154.226733][   T73]      process_backlog+0x101/0x620
[ 6154.226733][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6154.226733][   T73]      net_rx_action+0x495/0xbe0
[ 6154.226733][   T73]      __do_softirq+0x1b5/0x7f6
[ 6154.226733][   T73] 
[ 6154.228400][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6154.228400][   T73]      netdev_get_by_index+0x5e/0x80
[ 6154.228400][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6154.228400][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6154.228400][   T73]      ip6_route_add+0x1c/0x140
[ 6154.228400][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6154.228400][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6154.228400][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6154.228400][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6154.228400][   T73]      netlink_rcv_skb+0x130/0x360
[ 6154.228400][   T73]      netlink_unicast+0x449/0x710
[ 6154.228400][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6154.228400][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6154.228400][   T73]      ___sys_sendmsg+0xee/0x170
[ 6154.228400][   T73]      __sys_sendmsg+0xcd/0x170
[ 6154.228400][   T73]      do_syscall_64+0xc6/0x1e0
[ 6154.228400][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6154.228400][   T73] 
[ 6154.230441][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6154.230441][   T73]      netdev_get_by_index+0x5e/0x80
[ 6154.230441][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6154.230441][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6154.230441][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6154.230441][   T73]      ipv6_add_addr+0x411/0x2000
[ 6154.230441][   T73]      inet6_addr_add+0x30e/0xa40
[ 6154.230441][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6154.230441][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6154.230441][   T73]      netlink_rcv_skb+0x130/0x360
[ 6154.230441][   T73]      netlink_unicast+0x449/0x710
[ 6154.230441][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6154.230441][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6154.230441][   T73]      ___sys_sendmsg+0xee/0x170
[ 6154.230441][   T73]      __sys_sendmsg+0xcd/0x170
[ 6154.230441][   T73]      do_syscall_64+0xc6/0x1e0
[ 6154.230441][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6154.230441][   T73] 
[ 6154.232488][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6154.232488][   T73]      netdev_get_by_index+0x5e/0x80
[ 6154.232488][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6154.232488][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6154.232488][   T73]      ip6_route_add+0x1c/0x140
[ 6154.232488][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6154.232488][   T73]      addrconf_add_dev+0xe2/0x170
[ 6154.232488][   T73]      inet6_addr_add+0x12f/0xa40
[ 6154.232488][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6154.232488][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6154.232488][   T73]      netlink_rcv_skb+0x130/0x360
[ 6154.232488][   T73]      netlink_unicast+0x449/0x710
[ 6154.232488][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6154.232488][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6154.232488][   T73]      ___sys_sendmsg+0xee/0x170
[ 6154.232488][   T73]      __sys_sendmsg+0xcd/0x170
[ 6154.232488][   T73]      do_syscall_64+0xc6/0x1e0
[ 6154.232488][   T73] 
[ 6154.234496][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6154.234496][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6154.234496][   T73]      ipv6_find_idev+0x102/0x170
[ 6154.234496][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6154.234496][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6154.234496][   T73]      netlink_rcv_skb+0x130/0x360
[ 6154.234496][   T73]      netlink_unicast+0x449/0x710
[ 6154.234496][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6154.234496][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6154.234496][   T73]      ___sys_sendmsg+0xee/0x170
[ 6154.234496][   T73]      __sys_sendmsg+0xcd/0x170
[ 6154.234496][   T73]      do_syscall_64+0xc6/0x1e0
[ 6154.234496][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6154.234496][   T73] 
[ 6154.236075][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6154.236075][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6154.236075][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6154.236075][   T73]      ipv6_find_idev+0x102/0x170
[ 6154.236075][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6154.236075][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6154.236075][   T73]      netlink_rcv_skb+0x130/0x360
[ 6154.236075][   T73]      netlink_unicast+0x449/0x710
[ 6154.236075][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6154.236075][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6154.236075][   T73]      ___sys_sendmsg+0xee/0x170
[ 6154.236075][   T73]      __sys_sendmsg+0xcd/0x170
[ 6154.236075][   T73]      do_syscall_64+0xc6/0x1e0
[ 6154.236075][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6154.236075][   T73] 
[ 6154.237807][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6154.238092][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6154.238092][   T73]      netdev_get_by_index+0x5e/0x80
[ 6154.238092][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6154.238092][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6154.238092][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6154.238092][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6154.238092][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6154.238092][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6154.238092][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6154.238092][   T73]      addrconf_dad_begin+0x310/0x670
[ 6154.238092][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6154.238092][   T73]      process_one_work+0x84d/0x18a0
[ 6154.238092][   T73]      worker_thread+0x587/0xd30
[ 6154.238092][   T73]      kthread+0x28a/0x350
[ 6154.238092][   T73]      ret_from_fork+0x31/0x70
[ 6154.238092][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6154.238092][   T73] 
[ 6154.240040][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6154.240040][   T73]      netdev_get_by_index+0x5e/0x80
[ 6154.240040][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6154.240040][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6154.240040][   T73]      ip6_route_add+0x1c/0x140
[ 6154.240040][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6154.240040][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6154.240040][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6154.240040][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6154.240040][   T73]      netlink_rcv_skb+0x130/0x360
[ 6154.240040][   T73]      netlink_unicast+0x449/0x710
[ 6154.240040][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6154.240040][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6154.240040][   T73]      ___sys_sendmsg+0xee/0x170
[ 6154.240040][   T73]      __sys_sendmsg+0xcd/0x170
[ 6154.240040][   T73]      do_syscall_64+0xc6/0x1e0
[ 6154.240040][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6154.240040][   T73] 
[ 6154.242082][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6154.242082][   T73]      netdev_get_by_index+0x5e/0x80
[ 6154.242082][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6154.242082][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6154.242082][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6154.242082][   T73]      ipv6_add_addr+0x411/0x2000
[ 6154.242082][   T73]      inet6_addr_add+0x30e/0xa40
[ 6154.242082][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6154.242082][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6154.242082][   T73]      netlink_rcv_skb+0x130/0x360
[ 6154.242082][   T73]      netlink_unicast+0x449/0x710
[ 6154.242082][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6154.242082][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6154.242082][   T73]      ___sys_sendmsg+0xee/0x170
[ 6154.242082][   T73]      __sys_sendmsg+0xcd/0x170
[ 6154.242082][   T73]      do_syscall_64+0xc6/0x1e0
[ 6154.242082][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6154.242082][   T73] 
[ 6154.244122][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6154.244122][   T73]      netdev_get_by_index+0x5e/0x80
[ 6154.244122][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6154.244122][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6154.244122][   T73]      ip6_route_add+0x1c/0x140
[ 6154.244122][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6154.244122][   T73]      addrconf_add_dev+0xe2/0x170
[ 6154.244122][   T73]      inet6_addr_add+0x12f/0xa40
[ 6154.244122][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6154.244122][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6154.244122][   T73]      netlink_rcv_skb+0x130/0x360
[ 6154.244122][   T73]      netlink_unicast+0x449/0x710
[ 6154.244122][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6154.244122][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6154.244122][   T73]      ___sys_sendmsg+0xee/0x170
[ 6154.244122][   T73]      __sys_sendmsg+0xcd/0x170
[ 6154.244122][   T73]      do_syscall_64+0xc6/0x1e0
[ 6154.244122][   T73] 
[ 6154.246123][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6154.246123][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6154.246123][   T73]      ipv6_find_idev+0x102/0x170
[ 6154.246123][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6154.246123][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6154.246123][   T73]      netlink_rcv_skb+0x130/0x360
[ 6154.246123][   T73]      netlink_unicast+0x449/0x710
[ 6154.246123][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6154.246123][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6154.246123][   T73]      ___sys_sendmsg+0xee/0x170
[ 6154.246123][   T73]      __sys_sendmsg+0xcd/0x170
[ 6154.246123][   T73]      do_syscall_64+0xc6/0x1e0
[ 6154.246123][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6154.246123][   T73] 
[ 6154.247692][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6154.247692][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6154.247692][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6154.247692][   T73]      ipv6_find_idev+0x102/0x170
[ 6154.247692][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6154.247692][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6154.247692][   T73]      netlink_rcv_skb+0x130/0x360
[ 6154.247692][   T73]      netlink_unicast+0x449/0x710
[ 6154.247692][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6154.247692][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6154.247692][   T73]      ___sys_sendmsg+0xee/0x170
[ 6154.247692][   T73]      __sys_sendmsg+0xcd/0x170
[ 6154.247692][   T73]      do_syscall_64+0xc6/0x1e0
[ 6154.247692][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6154.247692][   T73] 
[ 6154.250058][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6154.250331][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6154.250331][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6154.250331][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6154.250331][   T73]      fib6_nh_init+0xa22/0x1580
[ 6154.250331][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6154.250331][   T73]      ip6_route_add+0x1c/0x140
[ 6154.250331][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6154.250331][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6154.250331][   T73]      netlink_rcv_skb+0x130/0x360
[ 6154.250331][   T73]      netlink_unicast+0x449/0x710
[ 6154.250331][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6154.250331][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6154.250331][   T73]      ___sys_sendmsg+0xee/0x170
[ 6154.250331][   T73]      __sys_sendmsg+0xcd/0x170
[ 6154.250331][   T73]      do_syscall_64+0xc6/0x1e0
[ 6154.250331][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6154.250331][   T73] 
[ 6154.252408][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6154.252408][   T73]      dst_init+0x84/0x4a0
[ 6154.252408][   T73]      dst_alloc+0x97/0x150
[ 6154.252408][   T73]      ip6_dst_alloc+0x23/0x90
[ 6154.252408][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6154.252408][   T73]      ip6_pol_route+0x56f/0x840
[ 6154.252408][   T73]      fib6_rule_lookup+0x456/0x630
[ 6154.252408][   T73]      ip6_route_input+0x59c/0xa50
[ 6154.252408][   T73]      ipv6_rcv+0x397/0x810
[ 6154.252408][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6154.252408][   T73]      process_backlog+0x101/0x620
[ 6154.252408][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6154.252408][   T73]      net_rx_action+0x495/0xbe0
[ 6154.252408][   T73]      __do_softirq+0x1b5/0x7f6
[ 6154.252408][   T73] 
[ 6154.254310][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6154.254310][   T73]      netdev_get_by_index+0x5e/0x80
[ 6154.254310][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6154.254310][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6154.254310][   T73]      ip6_route_add+0x1c/0x140
[ 6154.254310][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6154.254310][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6154.254310][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6154.254310][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6154.254310][   T73]      netlink_rcv_skb+0x130/0x360
[ 6154.254310][   T73]      netlink_unicast+0x449/0x710
[ 6154.254310][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6154.254310][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6154.254310][   T73]      ___sys_sendmsg+0xee/0x170
[ 6154.254310][   T73]      __sys_sendmsg+0xcd/0x170
[ 6154.254310][   T73]      do_syscall_64+0xc6/0x1e0
[ 6154.254310][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6154.254310][   T73] 
[ 6154.256580][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6154.256580][   T73]      netdev_get_by_index+0x5e/0x80
[ 6154.256580][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6154.256580][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6154.256580][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6154.256580][   T73]      ipv6_add_addr+0x411/0x2000
[ 6154.256580][   T73]      inet6_addr_add+0x30e/0xa40
[ 6154.256580][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6154.256580][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6154.256580][   T73]      netlink_rcv_skb+0x130/0x360
[ 6154.256580][   T73]      netlink_unicast+0x449/0x710
[ 6154.256580][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6154.256580][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6154.256580][   T73]      ___sys_sendmsg+0xee/0x170
[ 6154.256580][   T73]      __sys_sendmsg+0xcd/0x170
[ 6154.256580][   T73]      do_syscall_64+0xc6/0x1e0
[ 6154.256580][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6154.256580][   T73] 
[ 6154.258839][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6154.258839][   T73]      netdev_get_by_index+0x5e/0x80
[ 6154.258839][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6154.258839][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6154.258839][   T73]      ip6_route_add+0x1c/0x140
[ 6154.258839][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6154.258839][   T73]      addrconf_add_dev+0xe2/0x170
[ 6154.258839][   T73]      inet6_addr_add+0x12f/0xa40
[ 6154.258839][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6154.258839][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6154.258839][   T73]      netlink_rcv_skb+0x130/0x360
[ 6154.258839][   T73]      netlink_unicast+0x449/0x710
[ 6154.258839][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6154.258839][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6154.258839][   T73]      ___sys_sendmsg+0xee/0x170
[ 6154.258839][   T73]      __sys_sendmsg+0xcd/0x170
[ 6154.258839][   T73]      do_syscall_64+0xc6/0x1e0
[ 6154.258839][   T73] 
[ 6154.261063][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6154.261063][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6154.261063][   T73]      ipv6_find_idev+0x102/0x170
[ 6154.261063][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6154.261063][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6154.261063][   T73]      netlink_rcv_skb+0x130/0x360
[ 6154.261063][   T73]      netlink_unicast+0x449/0x710
[ 6154.261063][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6154.261063][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6154.261063][   T73]      ___sys_sendmsg+0xee/0x170
[ 6154.261063][   T73]      __sys_sendmsg+0xcd/0x170
[ 6154.261063][   T73]      do_syscall_64+0xc6/0x1e0
[ 6154.261063][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6154.261063][   T73] 
[ 6154.262864][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6154.262864][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6154.262864][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6154.262864][   T73]      ipv6_find_idev+0x102/0x170
[ 6154.262864][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6154.262864][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6154.262864][   T73]      netlink_rcv_skb+0x130/0x360
[ 6154.262864][   T73]      netlink_unicast+0x449/0x710
[ 6154.262864][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6154.262864][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6154.262864][   T73]      ___sys_sendmsg+0xee/0x170
[ 6154.262864][   T73]      __sys_sendmsg+0xcd/0x170
[ 6154.262864][   T73]      do_syscall_64+0xc6/0x1e0
[ 6154.262864][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6154.262864][   T73] 
[ 6154.264755][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6154.265030][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6154.265030][   T73]      netdev_get_by_index+0x5e/0x80
[ 6154.265030][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6154.265030][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6154.265030][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6154.265030][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6154.265030][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6154.265030][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6154.265030][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6154.265030][   T73]      addrconf_dad_begin+0x310/0x670
[ 6154.265030][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6154.265030][   T73]      process_one_work+0x84d/0x18a0
[ 6154.265030][   T73]      worker_thread+0x587/0xd30
[ 6154.265030][   T73]      kthread+0x28a/0x350
[ 6154.265030][   T73]      ret_from_fork+0x31/0x70
[ 6154.265030][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6154.265030][   T73] 
[ 6154.267219][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6154.267219][   T73]      netdev_get_by_index+0x5e/0x80
[ 6154.267219][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6154.267219][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6154.267219][   T73]      ip6_route_add+0x1c/0x140
[ 6154.267219][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6154.267219][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6154.267219][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6154.267219][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6154.267219][   T73]      netlink_rcv_skb+0x130/0x360
[ 6154.267219][   T73]      netlink_unicast+0x449/0x710
[ 6154.267219][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6154.267219][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6154.267219][   T73]      ___sys_sendmsg+0xee/0x170
[ 6154.267219][   T73]      __sys_sendmsg+0xcd/0x170
[ 6154.267219][   T73]      do_syscall_64+0xc6/0x1e0
[ 6154.267219][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6154.267219][   T73] 
[ 6154.269490][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6154.269490][   T73]      netdev_get_by_index+0x5e/0x80
[ 6154.269490][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6154.269490][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6154.269490][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6154.269490][   T73]      ipv6_add_addr+0x411/0x2000
[ 6154.269490][   T73]      inet6_addr_add+0x30e/0xa40
[ 6154.269490][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6154.269490][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6154.269490][   T73]      netlink_rcv_skb+0x130/0x360
[ 6154.269490][   T73]      netlink_unicast+0x449/0x710
[ 6154.269490][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6154.269490][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6154.269490][   T73]      ___sys_sendmsg+0xee/0x170
[ 6154.269490][   T73]      __sys_sendmsg+0xcd/0x170
[ 6154.269490][   T73]      do_syscall_64+0xc6/0x1e0
[ 6154.269490][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6154.269490][   T73] 
[ 6154.271818][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6154.271818][   T73]      netdev_get_by_index+0x5e/0x80
[ 6154.271818][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6154.271818][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6154.271818][   T73]      ip6_route_add+0x1c/0x140
[ 6154.271818][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6154.271818][   T73]      addrconf_add_dev+0xe2/0x170
[ 6154.271818][   T73]      inet6_addr_add+0x12f/0xa40
[ 6154.271818][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6154.271818][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6154.271818][   T73]      netlink_rcv_skb+0x130/0x360
[ 6154.271818][   T73]      netlink_unicast+0x449/0x710
[ 6154.271818][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6154.271818][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6154.271818][   T73]      ___sys_sendmsg+0xee/0x170
[ 6154.271818][   T73]      __sys_sendmsg+0xcd/0x170
[ 6154.271818][   T73]      do_syscall_64+0xc6/0x1e0
[ 6154.271818][   T73] 
[ 6154.273986][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6154.273986][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6154.273986][   T73]      ipv6_find_idev+0x102/0x170
[ 6154.273986][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6154.273986][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6154.273986][   T73]      netlink_rcv_skb+0x130/0x360
[ 6154.273986][   T73]      netlink_unicast+0x449/0x710
[ 6154.273986][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6154.273986][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6154.273986][   T73]      ___sys_sendmsg+0xee/0x170
[ 6154.273986][   T73]      __sys_sendmsg+0xcd/0x170
[ 6154.273986][   T73]      do_syscall_64+0xc6/0x1e0
[ 6154.273986][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6154.273986][   T73] 
[ 6154.275741][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6154.275741][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6154.275741][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6154.275741][   T73]      ipv6_find_idev+0x102/0x170
[ 6154.275741][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6154.275741][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6154.275741][   T73]      netlink_rcv_skb+0x130/0x360
[ 6154.275741][   T73]      netlink_unicast+0x449/0x710
[ 6154.275741][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6154.275741][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6154.275741][   T73]      ___sys_sendmsg+0xee/0x170
[ 6154.275741][   T73]      __sys_sendmsg+0xcd/0x170
[ 6154.275741][   T73]      do_syscall_64+0xc6/0x1e0
[ 6154.275741][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6154.275741][   T73] 
[ 6164.519818][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6164.520326][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6164.520326][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6164.520326][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6164.520326][   T73]      fib6_nh_init+0xa22/0x1580
[ 6164.520326][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6164.520326][   T73]      ip6_route_add+0x1c/0x140
[ 6164.520326][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6164.520326][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6164.520326][   T73]      netlink_rcv_skb+0x130/0x360
[ 6164.520326][   T73]      netlink_unicast+0x449/0x710
[ 6164.520326][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6164.520326][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6164.520326][   T73]      ___sys_sendmsg+0xee/0x170
[ 6164.520326][   T73]      __sys_sendmsg+0xcd/0x170
[ 6164.520326][   T73]      do_syscall_64+0xc6/0x1e0
[ 6164.520326][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6164.520326][   T73] 
[ 6164.522249][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6164.522249][   T73]      dst_init+0x84/0x4a0
[ 6164.522249][   T73]      dst_alloc+0x97/0x150
[ 6164.522249][   T73]      ip6_dst_alloc+0x23/0x90
[ 6164.522249][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6164.522249][   T73]      ip6_pol_route+0x56f/0x840
[ 6164.522249][   T73]      fib6_rule_lookup+0x456/0x630
[ 6164.522249][   T73]      ip6_route_input+0x59c/0xa50
[ 6164.522249][   T73]      ipv6_rcv+0x397/0x810
[ 6164.522249][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6164.522249][   T73]      process_backlog+0x101/0x620
[ 6164.522249][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6164.522249][   T73]      net_rx_action+0x495/0xbe0
[ 6164.522249][   T73]      __do_softirq+0x1b5/0x7f6
[ 6164.522249][   T73] 
[ 6164.523919][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6164.523919][   T73]      netdev_get_by_index+0x5e/0x80
[ 6164.523919][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6164.523919][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6164.523919][   T73]      ip6_route_add+0x1c/0x140
[ 6164.523919][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6164.523919][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6164.523919][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6164.523919][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6164.523919][   T73]      netlink_rcv_skb+0x130/0x360
[ 6164.523919][   T73]      netlink_unicast+0x449/0x710
[ 6164.523919][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6164.523919][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6164.523919][   T73]      ___sys_sendmsg+0xee/0x170
[ 6164.523919][   T73]      __sys_sendmsg+0xcd/0x170
[ 6164.523919][   T73]      do_syscall_64+0xc6/0x1e0
[ 6164.523919][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6164.523919][   T73] 
[ 6164.525960][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6164.525960][   T73]      netdev_get_by_index+0x5e/0x80
[ 6164.525960][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6164.525960][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6164.525960][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6164.525960][   T73]      ipv6_add_addr+0x411/0x2000
[ 6164.525960][   T73]      inet6_addr_add+0x30e/0xa40
[ 6164.525960][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6164.525960][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6164.525960][   T73]      netlink_rcv_skb+0x130/0x360
[ 6164.525960][   T73]      netlink_unicast+0x449/0x710
[ 6164.525960][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6164.525960][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6164.525960][   T73]      ___sys_sendmsg+0xee/0x170
[ 6164.525960][   T73]      __sys_sendmsg+0xcd/0x170
[ 6164.525960][   T73]      do_syscall_64+0xc6/0x1e0
[ 6164.525960][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6164.525960][   T73] 
[ 6164.527986][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6164.527986][   T73]      netdev_get_by_index+0x5e/0x80
[ 6164.527986][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6164.527986][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6164.527986][   T73]      ip6_route_add+0x1c/0x140
[ 6164.527986][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6164.527986][   T73]      addrconf_add_dev+0xe2/0x170
[ 6164.527986][   T73]      inet6_addr_add+0x12f/0xa40
[ 6164.527986][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6164.527986][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6164.527986][   T73]      netlink_rcv_skb+0x130/0x360
[ 6164.527986][   T73]      netlink_unicast+0x449/0x710
[ 6164.527986][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6164.527986][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6164.527986][   T73]      ___sys_sendmsg+0xee/0x170
[ 6164.527986][   T73]      __sys_sendmsg+0xcd/0x170
[ 6164.527986][   T73]      do_syscall_64+0xc6/0x1e0
[ 6164.527986][   T73] 
[ 6164.529973][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6164.529973][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6164.529973][   T73]      ipv6_find_idev+0x102/0x170
[ 6164.529973][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6164.529973][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6164.529973][   T73]      netlink_rcv_skb+0x130/0x360
[ 6164.529973][   T73]      netlink_unicast+0x449/0x710
[ 6164.529973][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6164.529973][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6164.529973][   T73]      ___sys_sendmsg+0xee/0x170
[ 6164.529973][   T73]      __sys_sendmsg+0xcd/0x170
[ 6164.529973][   T73]      do_syscall_64+0xc6/0x1e0
[ 6164.529973][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6164.529973][   T73] 
[ 6164.531535][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6164.531535][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6164.531535][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6164.531535][   T73]      ipv6_find_idev+0x102/0x170
[ 6164.531535][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6164.531535][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6164.531535][   T73]      netlink_rcv_skb+0x130/0x360
[ 6164.531535][   T73]      netlink_unicast+0x449/0x710
[ 6164.531535][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6164.531535][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6164.531535][   T73]      ___sys_sendmsg+0xee/0x170
[ 6164.531535][   T73]      __sys_sendmsg+0xcd/0x170
[ 6164.531535][   T73]      do_syscall_64+0xc6/0x1e0
[ 6164.531535][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6164.531535][   T73] 
[ 6164.533261][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6164.533549][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6164.533549][   T73]      netdev_get_by_index+0x5e/0x80
[ 6164.533549][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6164.533549][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6164.533549][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6164.533549][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6164.533549][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6164.533549][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6164.533549][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6164.533549][   T73]      addrconf_dad_begin+0x310/0x670
[ 6164.533549][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6164.533549][   T73]      process_one_work+0x84d/0x18a0
[ 6164.533549][   T73]      worker_thread+0x587/0xd30
[ 6164.533549][   T73]      kthread+0x28a/0x350
[ 6164.533549][   T73]      ret_from_fork+0x31/0x70
[ 6164.533549][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6164.533549][   T73] 
[ 6164.535485][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6164.535485][   T73]      netdev_get_by_index+0x5e/0x80
[ 6164.535485][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6164.535485][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6164.535485][   T73]      ip6_route_add+0x1c/0x140
[ 6164.535485][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6164.535485][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6164.535485][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6164.535485][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6164.535485][   T73]      netlink_rcv_skb+0x130/0x360
[ 6164.535485][   T73]      netlink_unicast+0x449/0x710
[ 6164.535485][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6164.535485][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6164.535485][   T73]      ___sys_sendmsg+0xee/0x170
[ 6164.535485][   T73]      __sys_sendmsg+0xcd/0x170
[ 6164.535485][   T73]      do_syscall_64+0xc6/0x1e0
[ 6164.535485][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6164.535485][   T73] 
[ 6164.537552][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6164.537552][   T73]      netdev_get_by_index+0x5e/0x80
[ 6164.537552][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6164.537552][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6164.537552][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6164.537552][   T73]      ipv6_add_addr+0x411/0x2000
[ 6164.537552][   T73]      inet6_addr_add+0x30e/0xa40
[ 6164.537552][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6164.537552][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6164.537552][   T73]      netlink_rcv_skb+0x130/0x360
[ 6164.537552][   T73]      netlink_unicast+0x449/0x710
[ 6164.537552][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6164.537552][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6164.537552][   T73]      ___sys_sendmsg+0xee/0x170
[ 6164.537552][   T73]      __sys_sendmsg+0xcd/0x170
[ 6164.537552][   T73]      do_syscall_64+0xc6/0x1e0
[ 6164.537552][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6164.537552][   T73] 
[ 6164.539574][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6164.539574][   T73]      netdev_get_by_index+0x5e/0x80
[ 6164.539574][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6164.539574][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6164.539574][   T73]      ip6_route_add+0x1c/0x140
[ 6164.539574][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6164.539574][   T73]      addrconf_add_dev+0xe2/0x170
[ 6164.539574][   T73]      inet6_addr_add+0x12f/0xa40
[ 6164.539574][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6164.539574][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6164.539574][   T73]      netlink_rcv_skb+0x130/0x360
[ 6164.539574][   T73]      netlink_unicast+0x449/0x710
[ 6164.539574][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6164.539574][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6164.539574][   T73]      ___sys_sendmsg+0xee/0x170
[ 6164.539574][   T73]      __sys_sendmsg+0xcd/0x170
[ 6164.539574][   T73]      do_syscall_64+0xc6/0x1e0
[ 6164.539574][   T73] 
[ 6164.541560][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6164.541560][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6164.541560][   T73]      ipv6_find_idev+0x102/0x170
[ 6164.541560][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6164.541560][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6164.541560][   T73]      netlink_rcv_skb+0x130/0x360
[ 6164.541560][   T73]      netlink_unicast+0x449/0x710
[ 6164.541560][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6164.541560][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6164.541560][   T73]      ___sys_sendmsg+0xee/0x170
[ 6164.541560][   T73]      __sys_sendmsg+0xcd/0x170
[ 6164.541560][   T73]      do_syscall_64+0xc6/0x1e0
[ 6164.541560][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6164.541560][   T73] 
[ 6164.543133][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6164.543133][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6164.543133][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6164.543133][   T73]      ipv6_find_idev+0x102/0x170
[ 6164.543133][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6164.543133][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6164.543133][   T73]      netlink_rcv_skb+0x130/0x360
[ 6164.543133][   T73]      netlink_unicast+0x449/0x710
[ 6164.543133][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6164.543133][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6164.543133][   T73]      ___sys_sendmsg+0xee/0x170
[ 6164.543133][   T73]      __sys_sendmsg+0xcd/0x170
[ 6164.543133][   T73]      do_syscall_64+0xc6/0x1e0
[ 6164.543133][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6164.543133][   T73] 
[ 6164.544849][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6164.545121][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6164.545121][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6164.545121][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6164.545121][   T73]      fib6_nh_init+0xa22/0x1580
[ 6164.545121][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6164.545121][   T73]      ip6_route_add+0x1c/0x140
[ 6164.545121][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6164.545121][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6164.545121][   T73]      netlink_rcv_skb+0x130/0x360
[ 6164.545121][   T73]      netlink_unicast+0x449/0x710
[ 6164.545121][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6164.545121][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6164.545121][   T73]      ___sys_sendmsg+0xee/0x170
[ 6164.545121][   T73]      __sys_sendmsg+0xcd/0x170
[ 6164.545121][   T73]      do_syscall_64+0xc6/0x1e0
[ 6164.545121][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6164.545121][   T73] 
[ 6164.547213][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6164.547213][   T73]      dst_init+0x84/0x4a0
[ 6164.547213][   T73]      dst_alloc+0x97/0x150
[ 6164.547213][   T73]      ip6_dst_alloc+0x23/0x90
[ 6164.547213][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6164.547213][   T73]      ip6_pol_route+0x56f/0x840
[ 6164.547213][   T73]      fib6_rule_lookup+0x456/0x630
[ 6164.547213][   T73]      ip6_route_input+0x59c/0xa50
[ 6164.547213][   T73]      ipv6_rcv+0x397/0x810
[ 6164.547213][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6164.547213][   T73]      process_backlog+0x101/0x620
[ 6164.547213][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6164.547213][   T73]      net_rx_action+0x495/0xbe0
[ 6164.547213][   T73]      __do_softirq+0x1b5/0x7f6
[ 6164.547213][   T73] 
[ 6164.549123][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6164.549123][   T73]      netdev_get_by_index+0x5e/0x80
[ 6164.549123][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6164.549123][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6164.549123][   T73]      ip6_route_add+0x1c/0x140
[ 6164.549123][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6164.549123][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6164.549123][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6164.549123][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6164.549123][   T73]      netlink_rcv_skb+0x130/0x360
[ 6164.549123][   T73]      netlink_unicast+0x449/0x710
[ 6164.549123][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6164.549123][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6164.549123][   T73]      ___sys_sendmsg+0xee/0x170
[ 6164.549123][   T73]      __sys_sendmsg+0xcd/0x170
[ 6164.549123][   T73]      do_syscall_64+0xc6/0x1e0
[ 6164.549123][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6164.549123][   T73] 
[ 6164.551384][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6164.551384][   T73]      netdev_get_by_index+0x5e/0x80
[ 6164.551384][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6164.551384][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6164.551384][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6164.551384][   T73]      ipv6_add_addr+0x411/0x2000
[ 6164.551384][   T73]      inet6_addr_add+0x30e/0xa40
[ 6164.551384][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6164.551384][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6164.551384][   T73]      netlink_rcv_skb+0x130/0x360
[ 6164.551384][   T73]      netlink_unicast+0x449/0x710
[ 6164.551384][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6164.551384][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6164.551384][   T73]      ___sys_sendmsg+0xee/0x170
[ 6164.551384][   T73]      __sys_sendmsg+0xcd/0x170
[ 6164.551384][   T73]      do_syscall_64+0xc6/0x1e0
[ 6164.551384][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6164.551384][   T73] 
[ 6164.553655][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6164.553655][   T73]      netdev_get_by_index+0x5e/0x80
[ 6164.553655][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6164.553655][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6164.553655][   T73]      ip6_route_add+0x1c/0x140
[ 6164.553655][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6164.553655][   T73]      addrconf_add_dev+0xe2/0x170
[ 6164.553655][   T73]      inet6_addr_add+0x12f/0xa40
[ 6164.553655][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6164.553655][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6164.553655][   T73]      netlink_rcv_skb+0x130/0x360
[ 6164.553655][   T73]      netlink_unicast+0x449/0x710
[ 6164.553655][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6164.553655][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6164.553655][   T73]      ___sys_sendmsg+0xee/0x170
[ 6164.553655][   T73]      __sys_sendmsg+0xcd/0x170
[ 6164.553655][   T73]      do_syscall_64+0xc6/0x1e0
[ 6164.553655][   T73] 
[ 6164.555889][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6164.555889][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6164.555889][   T73]      ipv6_find_idev+0x102/0x170
[ 6164.555889][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6164.555889][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6164.555889][   T73]      netlink_rcv_skb+0x130/0x360
[ 6164.555889][   T73]      netlink_unicast+0x449/0x710
[ 6164.555889][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6164.555889][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6164.555889][   T73]      ___sys_sendmsg+0xee/0x170
[ 6164.555889][   T73]      __sys_sendmsg+0xcd/0x170
[ 6164.555889][   T73]      do_syscall_64+0xc6/0x1e0
[ 6164.555889][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6164.555889][   T73] 
[ 6164.557695][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6164.557695][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6164.557695][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6164.557695][   T73]      ipv6_find_idev+0x102/0x170
[ 6164.557695][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6164.557695][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6164.557695][   T73]      netlink_rcv_skb+0x130/0x360
[ 6164.557695][   T73]      netlink_unicast+0x449/0x710
[ 6164.557695][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6164.557695][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6164.557695][   T73]      ___sys_sendmsg+0xee/0x170
[ 6164.557695][   T73]      __sys_sendmsg+0xcd/0x170
[ 6164.557695][   T73]      do_syscall_64+0xc6/0x1e0
[ 6164.557695][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6164.557695][   T73] 
[ 6164.562036][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6164.562325][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6164.562325][   T73]      netdev_get_by_index+0x5e/0x80
[ 6164.562325][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6164.562325][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6164.562325][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6164.562325][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6164.562325][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6164.562325][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6164.562325][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6164.562325][   T73]      addrconf_dad_begin+0x310/0x670
[ 6164.562325][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6164.562325][   T73]      process_one_work+0x84d/0x18a0
[ 6164.562325][   T73]      worker_thread+0x587/0xd30
[ 6164.562325][   T73]      kthread+0x28a/0x350
[ 6164.562325][   T73]      ret_from_fork+0x31/0x70
[ 6164.562325][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6164.562325][   T73] 
[ 6164.564518][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6164.564518][   T73]      netdev_get_by_index+0x5e/0x80
[ 6164.564518][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6164.564518][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6164.564518][   T73]      ip6_route_add+0x1c/0x140
[ 6164.564518][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6164.564518][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6164.564518][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6164.564518][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6164.564518][   T73]      netlink_rcv_skb+0x130/0x360
[ 6164.564518][   T73]      netlink_unicast+0x449/0x710
[ 6164.564518][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6164.564518][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6164.564518][   T73]      ___sys_sendmsg+0xee/0x170
[ 6164.564518][   T73]      __sys_sendmsg+0xcd/0x170
[ 6164.564518][   T73]      do_syscall_64+0xc6/0x1e0
[ 6164.564518][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6164.564518][   T73] 
[ 6164.566799][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6164.566799][   T73]      netdev_get_by_index+0x5e/0x80
[ 6164.566799][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6164.566799][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6164.566799][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6164.566799][   T73]      ipv6_add_addr+0x411/0x2000
[ 6164.566799][   T73]      inet6_addr_add+0x30e/0xa40
[ 6164.566799][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6164.566799][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6164.566799][   T73]      netlink_rcv_skb+0x130/0x360
[ 6164.566799][   T73]      netlink_unicast+0x449/0x710
[ 6164.566799][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6164.566799][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6164.566799][   T73]      ___sys_sendmsg+0xee/0x170
[ 6164.566799][   T73]      __sys_sendmsg+0xcd/0x170
[ 6164.566799][   T73]      do_syscall_64+0xc6/0x1e0
[ 6164.566799][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6164.566799][   T73] 
[ 6164.569132][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6164.569132][   T73]      netdev_get_by_index+0x5e/0x80
[ 6164.569132][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6164.569132][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6164.569132][   T73]      ip6_route_add+0x1c/0x140
[ 6164.569132][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6164.569132][   T73]      addrconf_add_dev+0xe2/0x170
[ 6164.569132][   T73]      inet6_addr_add+0x12f/0xa40
[ 6164.569132][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6164.569132][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6164.569132][   T73]      netlink_rcv_skb+0x130/0x360
[ 6164.569132][   T73]      netlink_unicast+0x449/0x710
[ 6164.569132][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6164.569132][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6164.569132][   T73]      ___sys_sendmsg+0xee/0x170
[ 6164.569132][   T73]      __sys_sendmsg+0xcd/0x170
[ 6164.569132][   T73]      do_syscall_64+0xc6/0x1e0
[ 6164.569132][   T73] 
[ 6164.571303][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6164.571303][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6164.571303][   T73]      ipv6_find_idev+0x102/0x170
[ 6164.571303][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6164.571303][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6164.571303][   T73]      netlink_rcv_skb+0x130/0x360
[ 6164.571303][   T73]      netlink_unicast+0x449/0x710
[ 6164.571303][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6164.571303][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6164.571303][   T73]      ___sys_sendmsg+0xee/0x170
[ 6164.571303][   T73]      __sys_sendmsg+0xcd/0x170
[ 6164.571303][   T73]      do_syscall_64+0xc6/0x1e0
[ 6164.571303][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6164.571303][   T73] 
[ 6164.573055][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6164.573055][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6164.573055][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6164.573055][   T73]      ipv6_find_idev+0x102/0x170
[ 6164.573055][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6164.573055][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6164.573055][   T73]      netlink_rcv_skb+0x130/0x360
[ 6164.573055][   T73]      netlink_unicast+0x449/0x710
[ 6164.573055][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6164.573055][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6164.573055][   T73]      ___sys_sendmsg+0xee/0x170
[ 6164.573055][   T73]      __sys_sendmsg+0xcd/0x170
[ 6164.573055][   T73]      do_syscall_64+0xc6/0x1e0
[ 6164.573055][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6164.573055][   T73] 
[ 6174.815800][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6174.816323][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6174.816323][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6174.816323][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6174.816323][   T73]      fib6_nh_init+0xa22/0x1580
[ 6174.816323][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6174.816323][   T73]      ip6_route_add+0x1c/0x140
[ 6174.816323][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6174.816323][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6174.816323][   T73]      netlink_rcv_skb+0x130/0x360
[ 6174.816323][   T73]      netlink_unicast+0x449/0x710
[ 6174.816323][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6174.816323][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6174.816323][   T73]      ___sys_sendmsg+0xee/0x170
[ 6174.816323][   T73]      __sys_sendmsg+0xcd/0x170
[ 6174.816323][   T73]      do_syscall_64+0xc6/0x1e0
[ 6174.816323][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6174.816323][   T73] 
[ 6174.818432][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6174.818432][   T73]      dst_init+0x84/0x4a0
[ 6174.818432][   T73]      dst_alloc+0x97/0x150
[ 6174.818432][   T73]      ip6_dst_alloc+0x23/0x90
[ 6174.818432][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6174.818432][   T73]      ip6_pol_route+0x56f/0x840
[ 6174.818432][   T73]      fib6_rule_lookup+0x456/0x630
[ 6174.818432][   T73]      ip6_route_input+0x59c/0xa50
[ 6174.818432][   T73]      ipv6_rcv+0x397/0x810
[ 6174.818432][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6174.818432][   T73]      process_backlog+0x101/0x620
[ 6174.818432][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6174.818432][   T73]      net_rx_action+0x495/0xbe0
[ 6174.818432][   T73]      __do_softirq+0x1b5/0x7f6
[ 6174.818432][   T73] 
[ 6174.820263][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6174.820263][   T73]      netdev_get_by_index+0x5e/0x80
[ 6174.820263][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6174.820263][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6174.820263][   T73]      ip6_route_add+0x1c/0x140
[ 6174.820263][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6174.820263][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6174.820263][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6174.820263][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6174.820263][   T73]      netlink_rcv_skb+0x130/0x360
[ 6174.820263][   T73]      netlink_unicast+0x449/0x710
[ 6174.820263][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6174.820263][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6174.820263][   T73]      ___sys_sendmsg+0xee/0x170
[ 6174.820263][   T73]      __sys_sendmsg+0xcd/0x170
[ 6174.820263][   T73]      do_syscall_64+0xc6/0x1e0
[ 6174.820263][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6174.820263][   T73] 
[ 6174.822545][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6174.822545][   T73]      netdev_get_by_index+0x5e/0x80
[ 6174.822545][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6174.822545][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6174.822545][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6174.822545][   T73]      ipv6_add_addr+0x411/0x2000
[ 6174.822545][   T73]      inet6_addr_add+0x30e/0xa40
[ 6174.822545][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6174.822545][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6174.822545][   T73]      netlink_rcv_skb+0x130/0x360
[ 6174.822545][   T73]      netlink_unicast+0x449/0x710
[ 6174.822545][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6174.822545][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6174.822545][   T73]      ___sys_sendmsg+0xee/0x170
[ 6174.822545][   T73]      __sys_sendmsg+0xcd/0x170
[ 6174.822545][   T73]      do_syscall_64+0xc6/0x1e0
[ 6174.822545][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6174.822545][   T73] 
[ 6174.824772][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6174.824772][   T73]      netdev_get_by_index+0x5e/0x80
[ 6174.824772][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6174.824772][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6174.824772][   T73]      ip6_route_add+0x1c/0x140
[ 6174.824772][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6174.824772][   T73]      addrconf_add_dev+0xe2/0x170
[ 6174.824772][   T73]      inet6_addr_add+0x12f/0xa40
[ 6174.824772][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6174.824772][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6174.824772][   T73]      netlink_rcv_skb+0x130/0x360
[ 6174.824772][   T73]      netlink_unicast+0x449/0x710
[ 6174.824772][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6174.824772][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6174.824772][   T73]      ___sys_sendmsg+0xee/0x170
[ 6174.824772][   T73]      __sys_sendmsg+0xcd/0x170
[ 6174.824772][   T73]      do_syscall_64+0xc6/0x1e0
[ 6174.824772][   T73] 
[ 6174.826963][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6174.826963][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6174.826963][   T73]      ipv6_find_idev+0x102/0x170
[ 6174.826963][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6174.826963][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6174.826963][   T73]      netlink_rcv_skb+0x130/0x360
[ 6174.826963][   T73]      netlink_unicast+0x449/0x710
[ 6174.826963][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6174.826963][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6174.826963][   T73]      ___sys_sendmsg+0xee/0x170
[ 6174.826963][   T73]      __sys_sendmsg+0xcd/0x170
[ 6174.826963][   T73]      do_syscall_64+0xc6/0x1e0
[ 6174.826963][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6174.826963][   T73] 
[ 6174.828706][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6174.828706][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6174.828706][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6174.828706][   T73]      ipv6_find_idev+0x102/0x170
[ 6174.828706][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6174.828706][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6174.828706][   T73]      netlink_rcv_skb+0x130/0x360
[ 6174.828706][   T73]      netlink_unicast+0x449/0x710
[ 6174.828706][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6174.828706][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6174.828706][   T73]      ___sys_sendmsg+0xee/0x170
[ 6174.828706][   T73]      __sys_sendmsg+0xcd/0x170
[ 6174.828706][   T73]      do_syscall_64+0xc6/0x1e0
[ 6174.828706][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6174.828706][   T73] 
[ 6174.830597][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6174.830917][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6174.830917][   T73]      netdev_get_by_index+0x5e/0x80
[ 6174.830917][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6174.830917][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6174.830917][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6174.830917][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6174.830917][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6174.830917][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6174.830917][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6174.830917][   T73]      addrconf_dad_begin+0x310/0x670
[ 6174.830917][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6174.830917][   T73]      process_one_work+0x84d/0x18a0
[ 6174.830917][   T73]      worker_thread+0x587/0xd30
[ 6174.830917][   T73]      kthread+0x28a/0x350
[ 6174.830917][   T73]      ret_from_fork+0x31/0x70
[ 6174.830917][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6174.830917][   T73] 
[ 6174.833056][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6174.833056][   T73]      netdev_get_by_index+0x5e/0x80
[ 6174.833056][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6174.833056][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6174.833056][   T73]      ip6_route_add+0x1c/0x140
[ 6174.833056][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6174.833056][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6174.833056][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6174.833056][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6174.833056][   T73]      netlink_rcv_skb+0x130/0x360
[ 6174.833056][   T73]      netlink_unicast+0x449/0x710
[ 6174.833056][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6174.833056][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6174.833056][   T73]      ___sys_sendmsg+0xee/0x170
[ 6174.833056][   T73]      __sys_sendmsg+0xcd/0x170
[ 6174.833056][   T73]      do_syscall_64+0xc6/0x1e0
[ 6174.833056][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6174.833056][   T73] 
[ 6174.835277][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6174.835277][   T73]      netdev_get_by_index+0x5e/0x80
[ 6174.835277][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6174.835277][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6174.835277][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6174.835277][   T73]      ipv6_add_addr+0x411/0x2000
[ 6174.835277][   T73]      inet6_addr_add+0x30e/0xa40
[ 6174.835277][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6174.835277][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6174.835277][   T73]      netlink_rcv_skb+0x130/0x360
[ 6174.835277][   T73]      netlink_unicast+0x449/0x710
[ 6174.835277][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6174.835277][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6174.835277][   T73]      ___sys_sendmsg+0xee/0x170
[ 6174.835277][   T73]      __sys_sendmsg+0xcd/0x170
[ 6174.835277][   T73]      do_syscall_64+0xc6/0x1e0
[ 6174.835277][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6174.835277][   T73] 
[ 6174.837543][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6174.837543][   T73]      netdev_get_by_index+0x5e/0x80
[ 6174.837543][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6174.837543][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6174.837543][   T73]      ip6_route_add+0x1c/0x140
[ 6174.837543][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6174.837543][   T73]      addrconf_add_dev+0xe2/0x170
[ 6174.837543][   T73]      inet6_addr_add+0x12f/0xa40
[ 6174.837543][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6174.837543][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6174.837543][   T73]      netlink_rcv_skb+0x130/0x360
[ 6174.837543][   T73]      netlink_unicast+0x449/0x710
[ 6174.837543][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6174.837543][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6174.837543][   T73]      ___sys_sendmsg+0xee/0x170
[ 6174.837543][   T73]      __sys_sendmsg+0xcd/0x170
[ 6174.837543][   T73]      do_syscall_64+0xc6/0x1e0
[ 6174.837543][   T73] 
[ 6174.839747][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6174.839747][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6174.839747][   T73]      ipv6_find_idev+0x102/0x170
[ 6174.839747][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6174.839747][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6174.839747][   T73]      netlink_rcv_skb+0x130/0x360
[ 6174.839747][   T73]      netlink_unicast+0x449/0x710
[ 6174.839747][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6174.839747][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6174.839747][   T73]      ___sys_sendmsg+0xee/0x170
[ 6174.839747][   T73]      __sys_sendmsg+0xcd/0x170
[ 6174.839747][   T73]      do_syscall_64+0xc6/0x1e0
[ 6174.839747][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6174.839747][   T73] 
[ 6174.841472][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6174.841472][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6174.841472][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6174.841472][   T73]      ipv6_find_idev+0x102/0x170
[ 6174.841472][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6174.841472][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6174.841472][   T73]      netlink_rcv_skb+0x130/0x360
[ 6174.841472][   T73]      netlink_unicast+0x449/0x710
[ 6174.841472][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6174.841472][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6174.841472][   T73]      ___sys_sendmsg+0xee/0x170
[ 6174.841472][   T73]      __sys_sendmsg+0xcd/0x170
[ 6174.841472][   T73]      do_syscall_64+0xc6/0x1e0
[ 6174.841472][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6174.841472][   T73] 
[ 6174.843393][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6174.843859][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6174.843859][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6174.843859][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6174.843859][   T73]      fib6_nh_init+0xa22/0x1580
[ 6174.843859][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6174.843859][   T73]      ip6_route_add+0x1c/0x140
[ 6174.843859][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6174.843859][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6174.843859][   T73]      netlink_rcv_skb+0x130/0x360
[ 6174.843859][   T73]      netlink_unicast+0x449/0x710
[ 6174.843859][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6174.843859][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6174.843859][   T73]      ___sys_sendmsg+0xee/0x170
[ 6174.843859][   T73]      __sys_sendmsg+0xcd/0x170
[ 6174.843859][   T73]      do_syscall_64+0xc6/0x1e0
[ 6174.843859][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6174.843859][   T73] 
[ 6174.847577][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6174.847577][   T73]      dst_init+0x84/0x4a0
[ 6174.847577][   T73]      dst_alloc+0x97/0x150
[ 6174.847577][   T73]      ip6_dst_alloc+0x23/0x90
[ 6174.847577][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6174.847577][   T73]      ip6_pol_route+0x56f/0x840
[ 6174.847577][   T73]      fib6_rule_lookup+0x456/0x630
[ 6174.847577][   T73]      ip6_route_input+0x59c/0xa50
[ 6174.847577][   T73]      ipv6_rcv+0x397/0x810
[ 6174.847577][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6174.847577][   T73]      process_backlog+0x101/0x620
[ 6174.847577][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6174.847577][   T73]      net_rx_action+0x495/0xbe0
[ 6174.847577][   T73]      __do_softirq+0x1b5/0x7f6
[ 6174.847577][   T73] 
[ 6174.850853][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6174.850853][   T73]      netdev_get_by_index+0x5e/0x80
[ 6174.850853][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6174.850853][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6174.850853][   T73]      ip6_route_add+0x1c/0x140
[ 6174.850853][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6174.850853][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6174.850853][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6174.850853][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6174.850853][   T73]      netlink_rcv_skb+0x130/0x360
[ 6174.850853][   T73]      netlink_unicast+0x449/0x710
[ 6174.850853][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6174.850853][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6174.850853][   T73]      ___sys_sendmsg+0xee/0x170
[ 6174.850853][   T73]      __sys_sendmsg+0xcd/0x170
[ 6174.850853][   T73]      do_syscall_64+0xc6/0x1e0
[ 6174.850853][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6174.850853][   T73] 
[ 6174.854696][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6174.854696][   T73]      netdev_get_by_index+0x5e/0x80
[ 6174.854696][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6174.854696][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6174.854696][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6174.854696][   T73]      ipv6_add_addr+0x411/0x2000
[ 6174.854696][   T73]      inet6_addr_add+0x30e/0xa40
[ 6174.854696][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6174.854696][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6174.854696][   T73]      netlink_rcv_skb+0x130/0x360
[ 6174.854696][   T73]      netlink_unicast+0x449/0x710
[ 6174.854696][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6174.854696][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6174.854696][   T73]      ___sys_sendmsg+0xee/0x170
[ 6174.854696][   T73]      __sys_sendmsg+0xcd/0x170
[ 6174.854696][   T73]      do_syscall_64+0xc6/0x1e0
[ 6174.854696][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6174.854696][   T73] 
[ 6174.858495][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6174.858495][   T73]      netdev_get_by_index+0x5e/0x80
[ 6174.858495][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6174.858495][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6174.858495][   T73]      ip6_route_add+0x1c/0x140
[ 6174.858495][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6174.858495][   T73]      addrconf_add_dev+0xe2/0x170
[ 6174.858495][   T73]      inet6_addr_add+0x12f/0xa40
[ 6174.858495][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6174.858495][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6174.858495][   T73]      netlink_rcv_skb+0x130/0x360
[ 6174.858495][   T73]      netlink_unicast+0x449/0x710
[ 6174.858495][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6174.858495][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6174.858495][   T73]      ___sys_sendmsg+0xee/0x170
[ 6174.858495][   T73]      __sys_sendmsg+0xcd/0x170
[ 6174.858495][   T73]      do_syscall_64+0xc6/0x1e0
[ 6174.858495][   T73] 
[ 6174.866881][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6174.866881][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6174.866881][   T73]      ipv6_find_idev+0x102/0x170
[ 6174.866881][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6174.866881][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6174.866881][   T73]      netlink_rcv_skb+0x130/0x360
[ 6174.866881][   T73]      netlink_unicast+0x449/0x710
[ 6174.866881][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6174.866881][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6174.866881][   T73]      ___sys_sendmsg+0xee/0x170
[ 6174.866881][   T73]      __sys_sendmsg+0xcd/0x170
[ 6174.866881][   T73]      do_syscall_64+0xc6/0x1e0
[ 6174.866881][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6174.866881][   T73] 
[ 6174.869897][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6174.869897][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6174.869897][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6174.869897][   T73]      ipv6_find_idev+0x102/0x170
[ 6174.869897][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6174.869897][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6174.869897][   T73]      netlink_rcv_skb+0x130/0x360
[ 6174.869897][   T73]      netlink_unicast+0x449/0x710
[ 6174.869897][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6174.869897][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6174.869897][   T73]      ___sys_sendmsg+0xee/0x170
[ 6174.869897][   T73]      __sys_sendmsg+0xcd/0x170
[ 6174.869897][   T73]      do_syscall_64+0xc6/0x1e0
[ 6174.869897][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6174.869897][   T73] 
[ 6174.873320][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6174.874667][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6174.874667][   T73]      netdev_get_by_index+0x5e/0x80
[ 6174.874667][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6174.874667][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6174.874667][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6174.874667][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6174.874667][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6174.874667][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6174.874667][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6174.874667][   T73]      addrconf_dad_begin+0x310/0x670
[ 6174.874667][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6174.874667][   T73]      process_one_work+0x84d/0x18a0
[ 6174.874667][   T73]      worker_thread+0x587/0xd30
[ 6174.874667][   T73]      kthread+0x28a/0x350
[ 6174.874667][   T73]      ret_from_fork+0x31/0x70
[ 6174.874667][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6174.874667][   T73] 
[ 6174.877243][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6174.877243][   T73]      netdev_get_by_index+0x5e/0x80
[ 6174.877243][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6174.877243][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6174.877243][   T73]      ip6_route_add+0x1c/0x140
[ 6174.877243][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6174.877243][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6174.877243][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6174.877243][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6174.877243][   T73]      netlink_rcv_skb+0x130/0x360
[ 6174.877243][   T73]      netlink_unicast+0x449/0x710
[ 6174.877243][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6174.877243][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6174.877243][   T73]      ___sys_sendmsg+0xee/0x170
[ 6174.877243][   T73]      __sys_sendmsg+0xcd/0x170
[ 6174.877243][   T73]      do_syscall_64+0xc6/0x1e0
[ 6174.877243][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6174.877243][   T73] 
[ 6174.879474][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6174.879474][   T73]      netdev_get_by_index+0x5e/0x80
[ 6174.879474][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6174.879474][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6174.879474][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6174.879474][   T73]      ipv6_add_addr+0x411/0x2000
[ 6174.879474][   T73]      inet6_addr_add+0x30e/0xa40
[ 6174.879474][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6174.879474][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6174.879474][   T73]      netlink_rcv_skb+0x130/0x360
[ 6174.879474][   T73]      netlink_unicast+0x449/0x710
[ 6174.879474][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6174.879474][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6174.879474][   T73]      ___sys_sendmsg+0xee/0x170
[ 6174.879474][   T73]      __sys_sendmsg+0xcd/0x170
[ 6174.879474][   T73]      do_syscall_64+0xc6/0x1e0
[ 6174.879474][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6174.879474][   T73] 
[ 6174.881971][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6174.881971][   T73]      netdev_get_by_index+0x5e/0x80
[ 6174.881971][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6174.881971][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6174.881971][   T73]      ip6_route_add+0x1c/0x140
[ 6174.881971][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6174.881971][   T73]      addrconf_add_dev+0xe2/0x170
[ 6174.881971][   T73]      inet6_addr_add+0x12f/0xa40
[ 6174.881971][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6174.881971][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6174.881971][   T73]      netlink_rcv_skb+0x130/0x360
[ 6174.881971][   T73]      netlink_unicast+0x449/0x710
[ 6174.881971][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6174.881971][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6174.881971][   T73]      ___sys_sendmsg+0xee/0x170
[ 6174.881971][   T73]      __sys_sendmsg+0xcd/0x170
[ 6174.881971][   T73]      do_syscall_64+0xc6/0x1e0
[ 6174.881971][   T73] 
[ 6174.884479][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6174.884479][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6174.884479][   T73]      ipv6_find_idev+0x102/0x170
[ 6174.884479][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6174.884479][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6174.884479][   T73]      netlink_rcv_skb+0x130/0x360
[ 6174.884479][   T73]      netlink_unicast+0x449/0x710
[ 6174.884479][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6174.884479][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6174.884479][   T73]      ___sys_sendmsg+0xee/0x170
[ 6174.884479][   T73]      __sys_sendmsg+0xcd/0x170
[ 6174.884479][   T73]      do_syscall_64+0xc6/0x1e0
[ 6174.884479][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6174.884479][   T73] 
[ 6174.886452][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6174.886452][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6174.886452][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6174.886452][   T73]      ipv6_find_idev+0x102/0x170
[ 6174.886452][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6174.886452][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6174.886452][   T73]      netlink_rcv_skb+0x130/0x360
[ 6174.886452][   T73]      netlink_unicast+0x449/0x710
[ 6174.886452][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6174.886452][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6174.886452][   T73]      ___sys_sendmsg+0xee/0x170
[ 6174.886452][   T73]      __sys_sendmsg+0xcd/0x170
[ 6174.886452][   T73]      do_syscall_64+0xc6/0x1e0
[ 6174.886452][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6174.886452][   T73] 
[ 6185.039767][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6185.040224][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6185.040224][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6185.040224][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6185.040224][   T73]      fib6_nh_init+0xa22/0x1580
[ 6185.040224][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6185.040224][   T73]      ip6_route_add+0x1c/0x140
[ 6185.040224][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6185.040224][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6185.040224][   T73]      netlink_rcv_skb+0x130/0x360
[ 6185.040224][   T73]      netlink_unicast+0x449/0x710
[ 6185.040224][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6185.040224][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6185.040224][   T73]      ___sys_sendmsg+0xee/0x170
[ 6185.040224][   T73]      __sys_sendmsg+0xcd/0x170
[ 6185.040224][   T73]      do_syscall_64+0xc6/0x1e0
[ 6185.040224][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6185.040224][   T73] 
[ 6185.042348][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6185.042348][   T73]      dst_init+0x84/0x4a0
[ 6185.042348][   T73]      dst_alloc+0x97/0x150
[ 6185.042348][   T73]      ip6_dst_alloc+0x23/0x90
[ 6185.042348][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6185.042348][   T73]      ip6_pol_route+0x56f/0x840
[ 6185.042348][   T73]      fib6_rule_lookup+0x456/0x630
[ 6185.042348][   T73]      ip6_route_input+0x59c/0xa50
[ 6185.042348][   T73]      ipv6_rcv+0x397/0x810
[ 6185.042348][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6185.042348][   T73]      process_backlog+0x101/0x620
[ 6185.042348][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6185.042348][   T73]      net_rx_action+0x495/0xbe0
[ 6185.042348][   T73]      __do_softirq+0x1b5/0x7f6
[ 6185.042348][   T73] 
[ 6185.044186][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6185.044186][   T73]      netdev_get_by_index+0x5e/0x80
[ 6185.044186][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6185.044186][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6185.044186][   T73]      ip6_route_add+0x1c/0x140
[ 6185.044186][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6185.044186][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6185.044186][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6185.044186][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6185.044186][   T73]      netlink_rcv_skb+0x130/0x360
[ 6185.044186][   T73]      netlink_unicast+0x449/0x710
[ 6185.044186][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6185.044186][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6185.044186][   T73]      ___sys_sendmsg+0xee/0x170
[ 6185.044186][   T73]      __sys_sendmsg+0xcd/0x170
[ 6185.044186][   T73]      do_syscall_64+0xc6/0x1e0
[ 6185.044186][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6185.044186][   T73] 
[ 6185.046432][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6185.046432][   T73]      netdev_get_by_index+0x5e/0x80
[ 6185.046432][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6185.046432][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6185.046432][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6185.046432][   T73]      ipv6_add_addr+0x411/0x2000
[ 6185.046432][   T73]      inet6_addr_add+0x30e/0xa40
[ 6185.046432][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6185.046432][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6185.046432][   T73]      netlink_rcv_skb+0x130/0x360
[ 6185.046432][   T73]      netlink_unicast+0x449/0x710
[ 6185.046432][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6185.046432][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6185.046432][   T73]      ___sys_sendmsg+0xee/0x170
[ 6185.046432][   T73]      __sys_sendmsg+0xcd/0x170
[ 6185.046432][   T73]      do_syscall_64+0xc6/0x1e0
[ 6185.046432][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6185.046432][   T73] 
[ 6185.048682][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6185.048682][   T73]      netdev_get_by_index+0x5e/0x80
[ 6185.048682][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6185.048682][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6185.048682][   T73]      ip6_route_add+0x1c/0x140
[ 6185.048682][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6185.048682][   T73]      addrconf_add_dev+0xe2/0x170
[ 6185.048682][   T73]      inet6_addr_add+0x12f/0xa40
[ 6185.048682][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6185.048682][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6185.048682][   T73]      netlink_rcv_skb+0x130/0x360
[ 6185.048682][   T73]      netlink_unicast+0x449/0x710
[ 6185.048682][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6185.048682][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6185.048682][   T73]      ___sys_sendmsg+0xee/0x170
[ 6185.048682][   T73]      __sys_sendmsg+0xcd/0x170
[ 6185.048682][   T73]      do_syscall_64+0xc6/0x1e0
[ 6185.048682][   T73] 
[ 6185.053056][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6185.053056][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6185.053056][   T73]      ipv6_find_idev+0x102/0x170
[ 6185.053056][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6185.053056][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6185.053056][   T73]      netlink_rcv_skb+0x130/0x360
[ 6185.053056][   T73]      netlink_unicast+0x449/0x710
[ 6185.053056][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6185.053056][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6185.053056][   T73]      ___sys_sendmsg+0xee/0x170
[ 6185.053056][   T73]      __sys_sendmsg+0xcd/0x170
[ 6185.053056][   T73]      do_syscall_64+0xc6/0x1e0
[ 6185.053056][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6185.053056][   T73] 
[ 6185.054799][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6185.054799][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6185.054799][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6185.054799][   T73]      ipv6_find_idev+0x102/0x170
[ 6185.054799][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6185.054799][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6185.054799][   T73]      netlink_rcv_skb+0x130/0x360
[ 6185.054799][   T73]      netlink_unicast+0x449/0x710
[ 6185.054799][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6185.054799][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6185.054799][   T73]      ___sys_sendmsg+0xee/0x170
[ 6185.054799][   T73]      __sys_sendmsg+0xcd/0x170
[ 6185.054799][   T73]      do_syscall_64+0xc6/0x1e0
[ 6185.054799][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6185.054799][   T73] 
[ 6185.056697][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6185.057016][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6185.057016][   T73]      netdev_get_by_index+0x5e/0x80
[ 6185.057016][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6185.057016][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6185.057016][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6185.057016][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6185.057016][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6185.057016][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6185.057016][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6185.057016][   T73]      addrconf_dad_begin+0x310/0x670
[ 6185.057016][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6185.057016][   T73]      process_one_work+0x84d/0x18a0
[ 6185.057016][   T73]      worker_thread+0x587/0xd30
[ 6185.057016][   T73]      kthread+0x28a/0x350
[ 6185.057016][   T73]      ret_from_fork+0x31/0x70
[ 6185.057016][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6185.057016][   T73] 
[ 6185.059171][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6185.059171][   T73]      netdev_get_by_index+0x5e/0x80
[ 6185.059171][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6185.059171][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6185.059171][   T73]      ip6_route_add+0x1c/0x140
[ 6185.059171][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6185.059171][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6185.059171][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6185.059171][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6185.059171][   T73]      netlink_rcv_skb+0x130/0x360
[ 6185.059171][   T73]      netlink_unicast+0x449/0x710
[ 6185.059171][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6185.059171][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6185.059171][   T73]      ___sys_sendmsg+0xee/0x170
[ 6185.059171][   T73]      __sys_sendmsg+0xcd/0x170
[ 6185.059171][   T73]      do_syscall_64+0xc6/0x1e0
[ 6185.059171][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6185.059171][   T73] 
[ 6185.061406][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6185.061406][   T73]      netdev_get_by_index+0x5e/0x80
[ 6185.061406][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6185.061406][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6185.061406][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6185.061406][   T73]      ipv6_add_addr+0x411/0x2000
[ 6185.061406][   T73]      inet6_addr_add+0x30e/0xa40
[ 6185.061406][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6185.061406][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6185.061406][   T73]      netlink_rcv_skb+0x130/0x360
[ 6185.061406][   T73]      netlink_unicast+0x449/0x710
[ 6185.061406][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6185.061406][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6185.061406][   T73]      ___sys_sendmsg+0xee/0x170
[ 6185.061406][   T73]      __sys_sendmsg+0xcd/0x170
[ 6185.061406][   T73]      do_syscall_64+0xc6/0x1e0
[ 6185.061406][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6185.061406][   T73] 
[ 6185.063654][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6185.063654][   T73]      netdev_get_by_index+0x5e/0x80
[ 6185.063654][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6185.063654][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6185.063654][   T73]      ip6_route_add+0x1c/0x140
[ 6185.063654][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6185.063654][   T73]      addrconf_add_dev+0xe2/0x170
[ 6185.063654][   T73]      inet6_addr_add+0x12f/0xa40
[ 6185.063654][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6185.063654][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6185.063654][   T73]      netlink_rcv_skb+0x130/0x360
[ 6185.063654][   T73]      netlink_unicast+0x449/0x710
[ 6185.063654][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6185.063654][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6185.063654][   T73]      ___sys_sendmsg+0xee/0x170
[ 6185.063654][   T73]      __sys_sendmsg+0xcd/0x170
[ 6185.063654][   T73]      do_syscall_64+0xc6/0x1e0
[ 6185.063654][   T73] 
[ 6185.065867][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6185.065867][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6185.065867][   T73]      ipv6_find_idev+0x102/0x170
[ 6185.065867][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6185.065867][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6185.065867][   T73]      netlink_rcv_skb+0x130/0x360
[ 6185.065867][   T73]      netlink_unicast+0x449/0x710
[ 6185.065867][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6185.065867][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6185.065867][   T73]      ___sys_sendmsg+0xee/0x170
[ 6185.065867][   T73]      __sys_sendmsg+0xcd/0x170
[ 6185.065867][   T73]      do_syscall_64+0xc6/0x1e0
[ 6185.065867][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6185.065867][   T73] 
[ 6185.067616][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6185.067616][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6185.067616][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6185.067616][   T73]      ipv6_find_idev+0x102/0x170
[ 6185.067616][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6185.067616][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6185.067616][   T73]      netlink_rcv_skb+0x130/0x360
[ 6185.067616][   T73]      netlink_unicast+0x449/0x710
[ 6185.067616][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6185.067616][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6185.067616][   T73]      ___sys_sendmsg+0xee/0x170
[ 6185.067616][   T73]      __sys_sendmsg+0xcd/0x170
[ 6185.067616][   T73]      do_syscall_64+0xc6/0x1e0
[ 6185.067616][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6185.067616][   T73] 
[ 6185.069523][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6185.069869][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6185.069869][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6185.069869][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6185.069869][   T73]      fib6_nh_init+0xa22/0x1580
[ 6185.069869][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6185.069869][   T73]      ip6_route_add+0x1c/0x140
[ 6185.069869][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6185.069869][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6185.069869][   T73]      netlink_rcv_skb+0x130/0x360
[ 6185.069869][   T73]      netlink_unicast+0x449/0x710
[ 6185.069869][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6185.069869][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6185.069869][   T73]      ___sys_sendmsg+0xee/0x170
[ 6185.069869][   T73]      __sys_sendmsg+0xcd/0x170
[ 6185.069869][   T73]      do_syscall_64+0xc6/0x1e0
[ 6185.069869][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6185.069869][   T73] 
[ 6185.072204][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6185.072204][   T73]      dst_init+0x84/0x4a0
[ 6185.072204][   T73]      dst_alloc+0x97/0x150
[ 6185.072204][   T73]      ip6_dst_alloc+0x23/0x90
[ 6185.072204][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6185.072204][   T73]      ip6_pol_route+0x56f/0x840
[ 6185.072204][   T73]      fib6_rule_lookup+0x456/0x630
[ 6185.072204][   T73]      ip6_route_input+0x59c/0xa50
[ 6185.072204][   T73]      ipv6_rcv+0x397/0x810
[ 6185.072204][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6185.072204][   T73]      process_backlog+0x101/0x620
[ 6185.072204][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6185.072204][   T73]      net_rx_action+0x495/0xbe0
[ 6185.072204][   T73]      __do_softirq+0x1b5/0x7f6
[ 6185.072204][   T73] 
[ 6185.074240][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6185.074240][   T73]      netdev_get_by_index+0x5e/0x80
[ 6185.074240][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6185.074240][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6185.074240][   T73]      ip6_route_add+0x1c/0x140
[ 6185.074240][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6185.074240][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6185.074240][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6185.074240][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6185.074240][   T73]      netlink_rcv_skb+0x130/0x360
[ 6185.074240][   T73]      netlink_unicast+0x449/0x710
[ 6185.074240][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6185.074240][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6185.074240][   T73]      ___sys_sendmsg+0xee/0x170
[ 6185.074240][   T73]      __sys_sendmsg+0xcd/0x170
[ 6185.074240][   T73]      do_syscall_64+0xc6/0x1e0
[ 6185.074240][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6185.074240][   T73] 
[ 6185.076755][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6185.076755][   T73]      netdev_get_by_index+0x5e/0x80
[ 6185.076755][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6185.076755][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6185.076755][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6185.076755][   T73]      ipv6_add_addr+0x411/0x2000
[ 6185.076755][   T73]      inet6_addr_add+0x30e/0xa40
[ 6185.076755][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6185.076755][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6185.076755][   T73]      netlink_rcv_skb+0x130/0x360
[ 6185.076755][   T73]      netlink_unicast+0x449/0x710
[ 6185.076755][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6185.076755][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6185.076755][   T73]      ___sys_sendmsg+0xee/0x170
[ 6185.076755][   T73]      __sys_sendmsg+0xcd/0x170
[ 6185.076755][   T73]      do_syscall_64+0xc6/0x1e0
[ 6185.076755][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6185.076755][   T73] 
[ 6185.079201][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6185.079201][   T73]      netdev_get_by_index+0x5e/0x80
[ 6185.079201][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6185.079201][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6185.079201][   T73]      ip6_route_add+0x1c/0x140
[ 6185.079201][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6185.079201][   T73]      addrconf_add_dev+0xe2/0x170
[ 6185.079201][   T73]      inet6_addr_add+0x12f/0xa40
[ 6185.079201][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6185.079201][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6185.079201][   T73]      netlink_rcv_skb+0x130/0x360
[ 6185.079201][   T73]      netlink_unicast+0x449/0x710
[ 6185.079201][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6185.079201][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6185.079201][   T73]      ___sys_sendmsg+0xee/0x170
[ 6185.079201][   T73]      __sys_sendmsg+0xcd/0x170
[ 6185.079201][   T73]      do_syscall_64+0xc6/0x1e0
[ 6185.079201][   T73] 
[ 6185.081719][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6185.081719][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6185.081719][   T73]      ipv6_find_idev+0x102/0x170
[ 6185.081719][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6185.081719][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6185.081719][   T73]      netlink_rcv_skb+0x130/0x360
[ 6185.081719][   T73]      netlink_unicast+0x449/0x710
[ 6185.081719][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6185.081719][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6185.081719][   T73]      ___sys_sendmsg+0xee/0x170
[ 6185.081719][   T73]      __sys_sendmsg+0xcd/0x170
[ 6185.081719][   T73]      do_syscall_64+0xc6/0x1e0
[ 6185.081719][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6185.081719][   T73] 
[ 6185.083651][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6185.083651][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6185.083651][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6185.083651][   T73]      ipv6_find_idev+0x102/0x170
[ 6185.083651][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6185.083651][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6185.083651][   T73]      netlink_rcv_skb+0x130/0x360
[ 6185.083651][   T73]      netlink_unicast+0x449/0x710
[ 6185.083651][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6185.083651][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6185.083651][   T73]      ___sys_sendmsg+0xee/0x170
[ 6185.083651][   T73]      __sys_sendmsg+0xcd/0x170
[ 6185.083651][   T73]      do_syscall_64+0xc6/0x1e0
[ 6185.083651][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6185.083651][   T73] 
[ 6185.085780][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6185.086163][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6185.086163][   T73]      netdev_get_by_index+0x5e/0x80
[ 6185.086163][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6185.086163][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6185.086163][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6185.086163][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6185.086163][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6185.086163][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6185.086163][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6185.086163][   T73]      addrconf_dad_begin+0x310/0x670
[ 6185.086163][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6185.086163][   T73]      process_one_work+0x84d/0x18a0
[ 6185.086163][   T73]      worker_thread+0x587/0xd30
[ 6185.086163][   T73]      kthread+0x28a/0x350
[ 6185.086163][   T73]      ret_from_fork+0x31/0x70
[ 6185.086163][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6185.086163][   T73] 
[ 6185.088466][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6185.088466][   T73]      netdev_get_by_index+0x5e/0x80
[ 6185.088466][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6185.088466][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6185.088466][   T73]      ip6_route_add+0x1c/0x140
[ 6185.088466][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6185.088466][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6185.088466][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6185.088466][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6185.088466][   T73]      netlink_rcv_skb+0x130/0x360
[ 6185.088466][   T73]      netlink_unicast+0x449/0x710
[ 6185.088466][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6185.088466][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6185.088466][   T73]      ___sys_sendmsg+0xee/0x170
[ 6185.088466][   T73]      __sys_sendmsg+0xcd/0x170
[ 6185.088466][   T73]      do_syscall_64+0xc6/0x1e0
[ 6185.088466][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6185.088466][   T73] 
[ 6185.090960][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6185.090960][   T73]      netdev_get_by_index+0x5e/0x80
[ 6185.090960][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6185.090960][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6185.090960][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6185.090960][   T73]      ipv6_add_addr+0x411/0x2000
[ 6185.090960][   T73]      inet6_addr_add+0x30e/0xa40
[ 6185.090960][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6185.090960][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6185.090960][   T73]      netlink_rcv_skb+0x130/0x360
[ 6185.090960][   T73]      netlink_unicast+0x449/0x710
[ 6185.090960][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6185.090960][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6185.090960][   T73]      ___sys_sendmsg+0xee/0x170
[ 6185.090960][   T73]      __sys_sendmsg+0xcd/0x170
[ 6185.090960][   T73]      do_syscall_64+0xc6/0x1e0
[ 6185.090960][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6185.090960][   T73] 
[ 6185.093509][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6185.093509][   T73]      netdev_get_by_index+0x5e/0x80
[ 6185.093509][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6185.093509][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6185.093509][   T73]      ip6_route_add+0x1c/0x140
[ 6185.093509][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6185.093509][   T73]      addrconf_add_dev+0xe2/0x170
[ 6185.093509][   T73]      inet6_addr_add+0x12f/0xa40
[ 6185.093509][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6185.093509][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6185.093509][   T73]      netlink_rcv_skb+0x130/0x360
[ 6185.093509][   T73]      netlink_unicast+0x449/0x710
[ 6185.093509][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6185.093509][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6185.093509][   T73]      ___sys_sendmsg+0xee/0x170
[ 6185.093509][   T73]      __sys_sendmsg+0xcd/0x170
[ 6185.093509][   T73]      do_syscall_64+0xc6/0x1e0
[ 6185.093509][   T73] 
[ 6185.095968][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6185.095968][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6185.095968][   T73]      ipv6_find_idev+0x102/0x170
[ 6185.095968][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6185.095968][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6185.095968][   T73]      netlink_rcv_skb+0x130/0x360
[ 6185.095968][   T73]      netlink_unicast+0x449/0x710
[ 6185.095968][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6185.095968][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6185.095968][   T73]      ___sys_sendmsg+0xee/0x170
[ 6185.095968][   T73]      __sys_sendmsg+0xcd/0x170
[ 6185.095968][   T73]      do_syscall_64+0xc6/0x1e0
[ 6185.095968][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6185.095968][   T73] 
[ 6185.097881][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6185.097881][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6185.097881][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6185.097881][   T73]      ipv6_find_idev+0x102/0x170
[ 6185.097881][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6185.097881][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6185.097881][   T73]      netlink_rcv_skb+0x130/0x360
[ 6185.097881][   T73]      netlink_unicast+0x449/0x710
[ 6185.097881][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6185.097881][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6185.097881][   T73]      ___sys_sendmsg+0xee/0x170
[ 6185.097881][   T73]      __sys_sendmsg+0xcd/0x170
[ 6185.097881][   T73]      do_syscall_64+0xc6/0x1e0
[ 6185.097881][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6185.097881][   T73] 
[ 6195.335795][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6195.336330][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6195.336330][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6195.336330][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6195.336330][   T73]      fib6_nh_init+0xa22/0x1580
[ 6195.336330][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6195.336330][   T73]      ip6_route_add+0x1c/0x140
[ 6195.336330][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6195.336330][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6195.336330][   T73]      netlink_rcv_skb+0x130/0x360
[ 6195.336330][   T73]      netlink_unicast+0x449/0x710
[ 6195.336330][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6195.336330][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6195.336330][   T73]      ___sys_sendmsg+0xee/0x170
[ 6195.336330][   T73]      __sys_sendmsg+0xcd/0x170
[ 6195.336330][   T73]      do_syscall_64+0xc6/0x1e0
[ 6195.336330][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6195.336330][   T73] 
[ 6195.338461][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6195.338461][   T73]      dst_init+0x84/0x4a0
[ 6195.338461][   T73]      dst_alloc+0x97/0x150
[ 6195.338461][   T73]      ip6_dst_alloc+0x23/0x90
[ 6195.338461][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6195.338461][   T73]      ip6_pol_route+0x56f/0x840
[ 6195.338461][   T73]      fib6_rule_lookup+0x456/0x630
[ 6195.338461][   T73]      ip6_route_input+0x59c/0xa50
[ 6195.338461][   T73]      ipv6_rcv+0x397/0x810
[ 6195.338461][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6195.338461][   T73]      process_backlog+0x101/0x620
[ 6195.338461][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6195.338461][   T73]      net_rx_action+0x495/0xbe0
[ 6195.338461][   T73]      __do_softirq+0x1b5/0x7f6
[ 6195.338461][   T73] 
[ 6195.340311][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6195.340311][   T73]      netdev_get_by_index+0x5e/0x80
[ 6195.340311][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6195.340311][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6195.340311][   T73]      ip6_route_add+0x1c/0x140
[ 6195.340311][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6195.340311][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6195.340311][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6195.340311][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6195.340311][   T73]      netlink_rcv_skb+0x130/0x360
[ 6195.340311][   T73]      netlink_unicast+0x449/0x710
[ 6195.340311][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6195.340311][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6195.340311][   T73]      ___sys_sendmsg+0xee/0x170
[ 6195.340311][   T73]      __sys_sendmsg+0xcd/0x170
[ 6195.340311][   T73]      do_syscall_64+0xc6/0x1e0
[ 6195.340311][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6195.340311][   T73] 
[ 6195.342565][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6195.342565][   T73]      netdev_get_by_index+0x5e/0x80
[ 6195.342565][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6195.342565][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6195.342565][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6195.342565][   T73]      ipv6_add_addr+0x411/0x2000
[ 6195.342565][   T73]      inet6_addr_add+0x30e/0xa40
[ 6195.342565][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6195.342565][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6195.342565][   T73]      netlink_rcv_skb+0x130/0x360
[ 6195.342565][   T73]      netlink_unicast+0x449/0x710
[ 6195.342565][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6195.342565][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6195.342565][   T73]      ___sys_sendmsg+0xee/0x170
[ 6195.342565][   T73]      __sys_sendmsg+0xcd/0x170
[ 6195.342565][   T73]      do_syscall_64+0xc6/0x1e0
[ 6195.342565][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6195.342565][   T73] 
[ 6195.344801][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6195.344801][   T73]      netdev_get_by_index+0x5e/0x80
[ 6195.344801][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6195.344801][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6195.344801][   T73]      ip6_route_add+0x1c/0x140
[ 6195.344801][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6195.344801][   T73]      addrconf_add_dev+0xe2/0x170
[ 6195.344801][   T73]      inet6_addr_add+0x12f/0xa40
[ 6195.344801][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6195.344801][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6195.344801][   T73]      netlink_rcv_skb+0x130/0x360
[ 6195.344801][   T73]      netlink_unicast+0x449/0x710
[ 6195.344801][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6195.344801][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6195.344801][   T73]      ___sys_sendmsg+0xee/0x170
[ 6195.344801][   T73]      __sys_sendmsg+0xcd/0x170
[ 6195.344801][   T73]      do_syscall_64+0xc6/0x1e0
[ 6195.344801][   T73] 
[ 6195.347001][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6195.347001][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6195.347001][   T73]      ipv6_find_idev+0x102/0x170
[ 6195.347001][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6195.347001][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6195.347001][   T73]      netlink_rcv_skb+0x130/0x360
[ 6195.347001][   T73]      netlink_unicast+0x449/0x710
[ 6195.347001][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6195.347001][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6195.347001][   T73]      ___sys_sendmsg+0xee/0x170
[ 6195.347001][   T73]      __sys_sendmsg+0xcd/0x170
[ 6195.347001][   T73]      do_syscall_64+0xc6/0x1e0
[ 6195.347001][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6195.347001][   T73] 
[ 6195.348723][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6195.348723][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6195.348723][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6195.348723][   T73]      ipv6_find_idev+0x102/0x170
[ 6195.348723][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6195.348723][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6195.348723][   T73]      netlink_rcv_skb+0x130/0x360
[ 6195.348723][   T73]      netlink_unicast+0x449/0x710
[ 6195.348723][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6195.348723][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6195.348723][   T73]      ___sys_sendmsg+0xee/0x170
[ 6195.348723][   T73]      __sys_sendmsg+0xcd/0x170
[ 6195.348723][   T73]      do_syscall_64+0xc6/0x1e0
[ 6195.348723][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6195.348723][   T73] 
[ 6195.350602][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6195.350929][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6195.350929][   T73]      netdev_get_by_index+0x5e/0x80
[ 6195.350929][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6195.350929][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6195.350929][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6195.350929][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6195.350929][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6195.350929][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6195.350929][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6195.350929][   T73]      addrconf_dad_begin+0x310/0x670
[ 6195.350929][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6195.350929][   T73]      process_one_work+0x84d/0x18a0
[ 6195.350929][   T73]      worker_thread+0x587/0xd30
[ 6195.350929][   T73]      kthread+0x28a/0x350
[ 6195.350929][   T73]      ret_from_fork+0x31/0x70
[ 6195.350929][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6195.350929][   T73] 
[ 6195.353063][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6195.353063][   T73]      netdev_get_by_index+0x5e/0x80
[ 6195.353063][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6195.353063][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6195.353063][   T73]      ip6_route_add+0x1c/0x140
[ 6195.353063][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6195.353063][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6195.353063][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6195.353063][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6195.353063][   T73]      netlink_rcv_skb+0x130/0x360
[ 6195.353063][   T73]      netlink_unicast+0x449/0x710
[ 6195.353063][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6195.353063][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6195.353063][   T73]      ___sys_sendmsg+0xee/0x170
[ 6195.353063][   T73]      __sys_sendmsg+0xcd/0x170
[ 6195.353063][   T73]      do_syscall_64+0xc6/0x1e0
[ 6195.353063][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6195.353063][   T73] 
[ 6195.355290][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6195.355290][   T73]      netdev_get_by_index+0x5e/0x80
[ 6195.355290][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6195.355290][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6195.355290][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6195.355290][   T73]      ipv6_add_addr+0x411/0x2000
[ 6195.355290][   T73]      inet6_addr_add+0x30e/0xa40
[ 6195.355290][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6195.355290][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6195.355290][   T73]      netlink_rcv_skb+0x130/0x360
[ 6195.355290][   T73]      netlink_unicast+0x449/0x710
[ 6195.355290][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6195.355290][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6195.355290][   T73]      ___sys_sendmsg+0xee/0x170
[ 6195.355290][   T73]      __sys_sendmsg+0xcd/0x170
[ 6195.355290][   T73]      do_syscall_64+0xc6/0x1e0
[ 6195.355290][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6195.355290][   T73] 
[ 6195.357502][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6195.357502][   T73]      netdev_get_by_index+0x5e/0x80
[ 6195.357502][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6195.357502][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6195.357502][   T73]      ip6_route_add+0x1c/0x140
[ 6195.357502][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6195.357502][   T73]      addrconf_add_dev+0xe2/0x170
[ 6195.357502][   T73]      inet6_addr_add+0x12f/0xa40
[ 6195.357502][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6195.357502][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6195.357502][   T73]      netlink_rcv_skb+0x130/0x360
[ 6195.357502][   T73]      netlink_unicast+0x449/0x710
[ 6195.357502][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6195.357502][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6195.357502][   T73]      ___sys_sendmsg+0xee/0x170
[ 6195.357502][   T73]      __sys_sendmsg+0xcd/0x170
[ 6195.357502][   T73]      do_syscall_64+0xc6/0x1e0
[ 6195.357502][   T73] 
[ 6195.359671][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6195.359671][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6195.359671][   T73]      ipv6_find_idev+0x102/0x170
[ 6195.359671][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6195.359671][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6195.359671][   T73]      netlink_rcv_skb+0x130/0x360
[ 6195.359671][   T73]      netlink_unicast+0x449/0x710
[ 6195.359671][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6195.359671][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6195.359671][   T73]      ___sys_sendmsg+0xee/0x170
[ 6195.359671][   T73]      __sys_sendmsg+0xcd/0x170
[ 6195.359671][   T73]      do_syscall_64+0xc6/0x1e0
[ 6195.359671][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6195.359671][   T73] 
[ 6195.361381][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6195.361381][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6195.361381][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6195.361381][   T73]      ipv6_find_idev+0x102/0x170
[ 6195.361381][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6195.361381][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6195.361381][   T73]      netlink_rcv_skb+0x130/0x360
[ 6195.361381][   T73]      netlink_unicast+0x449/0x710
[ 6195.361381][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6195.361381][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6195.361381][   T73]      ___sys_sendmsg+0xee/0x170
[ 6195.361381][   T73]      __sys_sendmsg+0xcd/0x170
[ 6195.361381][   T73]      do_syscall_64+0xc6/0x1e0
[ 6195.361381][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6195.361381][   T73] 
[ 6195.363228][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6195.363518][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6195.363518][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6195.363518][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6195.363518][   T73]      fib6_nh_init+0xa22/0x1580
[ 6195.363518][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6195.363518][   T73]      ip6_route_add+0x1c/0x140
[ 6195.363518][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6195.363518][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6195.363518][   T73]      netlink_rcv_skb+0x130/0x360
[ 6195.363518][   T73]      netlink_unicast+0x449/0x710
[ 6195.363518][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6195.363518][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6195.363518][   T73]      ___sys_sendmsg+0xee/0x170
[ 6195.363518][   T73]      __sys_sendmsg+0xcd/0x170
[ 6195.363518][   T73]      do_syscall_64+0xc6/0x1e0
[ 6195.363518][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6195.363518][   T73] 
[ 6195.365797][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6195.365797][   T73]      dst_init+0x84/0x4a0
[ 6195.365797][   T73]      dst_alloc+0x97/0x150
[ 6195.365797][   T73]      ip6_dst_alloc+0x23/0x90
[ 6195.365797][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6195.365797][   T73]      ip6_pol_route+0x56f/0x840
[ 6195.365797][   T73]      fib6_rule_lookup+0x456/0x630
[ 6195.365797][   T73]      ip6_route_input+0x59c/0xa50
[ 6195.365797][   T73]      ipv6_rcv+0x397/0x810
[ 6195.365797][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6195.365797][   T73]      process_backlog+0x101/0x620
[ 6195.365797][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6195.365797][   T73]      net_rx_action+0x495/0xbe0
[ 6195.365797][   T73]      __do_softirq+0x1b5/0x7f6
[ 6195.365797][   T73] 
[ 6195.367802][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6195.367802][   T73]      netdev_get_by_index+0x5e/0x80
[ 6195.367802][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6195.367802][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6195.367802][   T73]      ip6_route_add+0x1c/0x140
[ 6195.367802][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6195.367802][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6195.367802][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6195.367802][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6195.367802][   T73]      netlink_rcv_skb+0x130/0x360
[ 6195.367802][   T73]      netlink_unicast+0x449/0x710
[ 6195.367802][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6195.367802][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6195.367802][   T73]      ___sys_sendmsg+0xee/0x170
[ 6195.367802][   T73]      __sys_sendmsg+0xcd/0x170
[ 6195.367802][   T73]      do_syscall_64+0xc6/0x1e0
[ 6195.367802][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6195.367802][   T73] 
[ 6195.370353][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6195.370353][   T73]      netdev_get_by_index+0x5e/0x80
[ 6195.370353][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6195.370353][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6195.370353][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6195.370353][   T73]      ipv6_add_addr+0x411/0x2000
[ 6195.370353][   T73]      inet6_addr_add+0x30e/0xa40
[ 6195.370353][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6195.370353][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6195.370353][   T73]      netlink_rcv_skb+0x130/0x360
[ 6195.370353][   T73]      netlink_unicast+0x449/0x710
[ 6195.370353][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6195.370353][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6195.370353][   T73]      ___sys_sendmsg+0xee/0x170
[ 6195.370353][   T73]      __sys_sendmsg+0xcd/0x170
[ 6195.370353][   T73]      do_syscall_64+0xc6/0x1e0
[ 6195.370353][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6195.370353][   T73] 
[ 6195.372766][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6195.372766][   T73]      netdev_get_by_index+0x5e/0x80
[ 6195.372766][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6195.372766][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6195.372766][   T73]      ip6_route_add+0x1c/0x140
[ 6195.372766][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6195.372766][   T73]      addrconf_add_dev+0xe2/0x170
[ 6195.372766][   T73]      inet6_addr_add+0x12f/0xa40
[ 6195.372766][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6195.372766][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6195.372766][   T73]      netlink_rcv_skb+0x130/0x360
[ 6195.372766][   T73]      netlink_unicast+0x449/0x710
[ 6195.372766][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6195.372766][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6195.372766][   T73]      ___sys_sendmsg+0xee/0x170
[ 6195.372766][   T73]      __sys_sendmsg+0xcd/0x170
[ 6195.372766][   T73]      do_syscall_64+0xc6/0x1e0
[ 6195.372766][   T73] 
[ 6195.375229][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6195.375229][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6195.375229][   T73]      ipv6_find_idev+0x102/0x170
[ 6195.375229][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6195.375229][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6195.375229][   T73]      netlink_rcv_skb+0x130/0x360
[ 6195.375229][   T73]      netlink_unicast+0x449/0x710
[ 6195.375229][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6195.375229][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6195.375229][   T73]      ___sys_sendmsg+0xee/0x170
[ 6195.375229][   T73]      __sys_sendmsg+0xcd/0x170
[ 6195.375229][   T73]      do_syscall_64+0xc6/0x1e0
[ 6195.375229][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6195.375229][   T73] 
[ 6195.377143][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6195.377143][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6195.377143][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6195.377143][   T73]      ipv6_find_idev+0x102/0x170
[ 6195.377143][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6195.377143][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6195.377143][   T73]      netlink_rcv_skb+0x130/0x360
[ 6195.377143][   T73]      netlink_unicast+0x449/0x710
[ 6195.377143][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6195.377143][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6195.377143][   T73]      ___sys_sendmsg+0xee/0x170
[ 6195.377143][   T73]      __sys_sendmsg+0xcd/0x170
[ 6195.377143][   T73]      do_syscall_64+0xc6/0x1e0
[ 6195.377143][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6195.377143][   T73] 
[ 6195.379616][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6195.380342][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6195.380342][   T73]      netdev_get_by_index+0x5e/0x80
[ 6195.380342][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6195.380342][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6195.380342][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6195.380342][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6195.380342][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6195.380342][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6195.380342][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6195.380342][   T73]      addrconf_dad_begin+0x310/0x670
[ 6195.380342][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6195.380342][   T73]      process_one_work+0x84d/0x18a0
[ 6195.380342][   T73]      worker_thread+0x587/0xd30
[ 6195.380342][   T73]      kthread+0x28a/0x350
[ 6195.380342][   T73]      ret_from_fork+0x31/0x70
[ 6195.380342][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6195.380342][   T73] 
[ 6195.382479][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6195.382479][   T73]      netdev_get_by_index+0x5e/0x80
[ 6195.382479][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6195.382479][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6195.382479][   T73]      ip6_route_add+0x1c/0x140
[ 6195.382479][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6195.382479][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6195.382479][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6195.382479][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6195.382479][   T73]      netlink_rcv_skb+0x130/0x360
[ 6195.382479][   T73]      netlink_unicast+0x449/0x710
[ 6195.382479][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6195.382479][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6195.382479][   T73]      ___sys_sendmsg+0xee/0x170
[ 6195.382479][   T73]      __sys_sendmsg+0xcd/0x170
[ 6195.382479][   T73]      do_syscall_64+0xc6/0x1e0
[ 6195.382479][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6195.382479][   T73] 
[ 6195.384711][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6195.384711][   T73]      netdev_get_by_index+0x5e/0x80
[ 6195.384711][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6195.384711][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6195.384711][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6195.384711][   T73]      ipv6_add_addr+0x411/0x2000
[ 6195.384711][   T73]      inet6_addr_add+0x30e/0xa40
[ 6195.384711][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6195.384711][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6195.384711][   T73]      netlink_rcv_skb+0x130/0x360
[ 6195.384711][   T73]      netlink_unicast+0x449/0x710
[ 6195.384711][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6195.384711][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6195.384711][   T73]      ___sys_sendmsg+0xee/0x170
[ 6195.384711][   T73]      __sys_sendmsg+0xcd/0x170
[ 6195.384711][   T73]      do_syscall_64+0xc6/0x1e0
[ 6195.384711][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6195.384711][   T73] 
[ 6195.386953][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6195.386953][   T73]      netdev_get_by_index+0x5e/0x80
[ 6195.386953][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6195.386953][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6195.386953][   T73]      ip6_route_add+0x1c/0x140
[ 6195.386953][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6195.386953][   T73]      addrconf_add_dev+0xe2/0x170
[ 6195.386953][   T73]      inet6_addr_add+0x12f/0xa40
[ 6195.386953][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6195.386953][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6195.386953][   T73]      netlink_rcv_skb+0x130/0x360
[ 6195.386953][   T73]      netlink_unicast+0x449/0x710
[ 6195.386953][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6195.386953][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6195.386953][   T73]      ___sys_sendmsg+0xee/0x170
[ 6195.386953][   T73]      __sys_sendmsg+0xcd/0x170
[ 6195.386953][   T73]      do_syscall_64+0xc6/0x1e0
[ 6195.386953][   T73] 
[ 6195.389461][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6195.389461][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6195.389461][   T73]      ipv6_find_idev+0x102/0x170
[ 6195.389461][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6195.389461][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6195.389461][   T73]      netlink_rcv_skb+0x130/0x360
[ 6195.389461][   T73]      netlink_unicast+0x449/0x710
[ 6195.389461][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6195.389461][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6195.389461][   T73]      ___sys_sendmsg+0xee/0x170
[ 6195.389461][   T73]      __sys_sendmsg+0xcd/0x170
[ 6195.389461][   T73]      do_syscall_64+0xc6/0x1e0
[ 6195.389461][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6195.389461][   T73] 
[ 6195.391374][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6195.391374][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6195.391374][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6195.391374][   T73]      ipv6_find_idev+0x102/0x170
[ 6195.391374][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6195.391374][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6195.391374][   T73]      netlink_rcv_skb+0x130/0x360
[ 6195.391374][   T73]      netlink_unicast+0x449/0x710
[ 6195.391374][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6195.391374][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6195.391374][   T73]      ___sys_sendmsg+0xee/0x170
[ 6195.391374][   T73]      __sys_sendmsg+0xcd/0x170
[ 6195.391374][   T73]      do_syscall_64+0xc6/0x1e0
[ 6195.391374][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6195.391374][   T73] 
[ 6205.455746][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6205.456232][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6205.456232][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6205.456232][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6205.456232][   T73]      fib6_nh_init+0xa22/0x1580
[ 6205.456232][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6205.456232][   T73]      ip6_route_add+0x1c/0x140
[ 6205.456232][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6205.456232][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6205.456232][   T73]      netlink_rcv_skb+0x130/0x360
[ 6205.456232][   T73]      netlink_unicast+0x449/0x710
[ 6205.456232][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6205.456232][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6205.456232][   T73]      ___sys_sendmsg+0xee/0x170
[ 6205.456232][   T73]      __sys_sendmsg+0xcd/0x170
[ 6205.456232][   T73]      do_syscall_64+0xc6/0x1e0
[ 6205.456232][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6205.456232][   T73] 
[ 6205.458169][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6205.458169][   T73]      dst_init+0x84/0x4a0
[ 6205.458169][   T73]      dst_alloc+0x97/0x150
[ 6205.458169][   T73]      ip6_dst_alloc+0x23/0x90
[ 6205.458169][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6205.458169][   T73]      ip6_pol_route+0x56f/0x840
[ 6205.458169][   T73]      fib6_rule_lookup+0x456/0x630
[ 6205.458169][   T73]      ip6_route_input+0x59c/0xa50
[ 6205.458169][   T73]      ipv6_rcv+0x397/0x810
[ 6205.458169][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6205.458169][   T73]      process_backlog+0x101/0x620
[ 6205.458169][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6205.458169][   T73]      net_rx_action+0x495/0xbe0
[ 6205.458169][   T73]      __do_softirq+0x1b5/0x7f6
[ 6205.458169][   T73] 
[ 6205.459818][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6205.459818][   T73]      netdev_get_by_index+0x5e/0x80
[ 6205.459818][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6205.459818][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6205.459818][   T73]      ip6_route_add+0x1c/0x140
[ 6205.459818][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6205.459818][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6205.459818][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6205.459818][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6205.459818][   T73]      netlink_rcv_skb+0x130/0x360
[ 6205.459818][   T73]      netlink_unicast+0x449/0x710
[ 6205.459818][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6205.459818][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6205.459818][   T73]      ___sys_sendmsg+0xee/0x170
[ 6205.459818][   T73]      __sys_sendmsg+0xcd/0x170
[ 6205.459818][   T73]      do_syscall_64+0xc6/0x1e0
[ 6205.459818][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6205.459818][   T73] 
[ 6205.461830][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6205.461830][   T73]      netdev_get_by_index+0x5e/0x80
[ 6205.461830][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6205.461830][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6205.461830][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6205.461830][   T73]      ipv6_add_addr+0x411/0x2000
[ 6205.461830][   T73]      inet6_addr_add+0x30e/0xa40
[ 6205.461830][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6205.461830][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6205.461830][   T73]      netlink_rcv_skb+0x130/0x360
[ 6205.461830][   T73]      netlink_unicast+0x449/0x710
[ 6205.461830][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6205.461830][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6205.461830][   T73]      ___sys_sendmsg+0xee/0x170
[ 6205.461830][   T73]      __sys_sendmsg+0xcd/0x170
[ 6205.461830][   T73]      do_syscall_64+0xc6/0x1e0
[ 6205.461830][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6205.461830][   T73] 
[ 6205.463887][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6205.463887][   T73]      netdev_get_by_index+0x5e/0x80
[ 6205.463887][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6205.463887][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6205.463887][   T73]      ip6_route_add+0x1c/0x140
[ 6205.463887][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6205.463887][   T73]      addrconf_add_dev+0xe2/0x170
[ 6205.463887][   T73]      inet6_addr_add+0x12f/0xa40
[ 6205.463887][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6205.463887][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6205.463887][   T73]      netlink_rcv_skb+0x130/0x360
[ 6205.463887][   T73]      netlink_unicast+0x449/0x710
[ 6205.463887][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6205.463887][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6205.463887][   T73]      ___sys_sendmsg+0xee/0x170
[ 6205.463887][   T73]      __sys_sendmsg+0xcd/0x170
[ 6205.463887][   T73]      do_syscall_64+0xc6/0x1e0
[ 6205.463887][   T73] 
[ 6205.465899][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6205.465899][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6205.465899][   T73]      ipv6_find_idev+0x102/0x170
[ 6205.465899][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6205.465899][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6205.465899][   T73]      netlink_rcv_skb+0x130/0x360
[ 6205.465899][   T73]      netlink_unicast+0x449/0x710
[ 6205.465899][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6205.465899][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6205.465899][   T73]      ___sys_sendmsg+0xee/0x170
[ 6205.465899][   T73]      __sys_sendmsg+0xcd/0x170
[ 6205.465899][   T73]      do_syscall_64+0xc6/0x1e0
[ 6205.465899][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6205.465899][   T73] 
[ 6205.467460][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6205.467460][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6205.467460][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6205.467460][   T73]      ipv6_find_idev+0x102/0x170
[ 6205.467460][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6205.467460][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6205.467460][   T73]      netlink_rcv_skb+0x130/0x360
[ 6205.467460][   T73]      netlink_unicast+0x449/0x710
[ 6205.467460][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6205.467460][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6205.467460][   T73]      ___sys_sendmsg+0xee/0x170
[ 6205.467460][   T73]      __sys_sendmsg+0xcd/0x170
[ 6205.467460][   T73]      do_syscall_64+0xc6/0x1e0
[ 6205.467460][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6205.467460][   T73] 
[ 6205.469194][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6205.469481][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6205.469481][   T73]      netdev_get_by_index+0x5e/0x80
[ 6205.469481][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6205.469481][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6205.469481][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6205.469481][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6205.469481][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6205.469481][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6205.469481][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6205.469481][   T73]      addrconf_dad_begin+0x310/0x670
[ 6205.469481][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6205.469481][   T73]      process_one_work+0x84d/0x18a0
[ 6205.469481][   T73]      worker_thread+0x587/0xd30
[ 6205.469481][   T73]      kthread+0x28a/0x350
[ 6205.469481][   T73]      ret_from_fork+0x31/0x70
[ 6205.469481][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6205.469481][   T73] 
[ 6205.471424][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6205.471424][   T73]      netdev_get_by_index+0x5e/0x80
[ 6205.471424][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6205.471424][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6205.471424][   T73]      ip6_route_add+0x1c/0x140
[ 6205.471424][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6205.471424][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6205.471424][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6205.471424][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6205.471424][   T73]      netlink_rcv_skb+0x130/0x360
[ 6205.471424][   T73]      netlink_unicast+0x449/0x710
[ 6205.471424][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6205.471424][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6205.471424][   T73]      ___sys_sendmsg+0xee/0x170
[ 6205.471424][   T73]      __sys_sendmsg+0xcd/0x170
[ 6205.471424][   T73]      do_syscall_64+0xc6/0x1e0
[ 6205.471424][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6205.471424][   T73] 
[ 6205.473447][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6205.473447][   T73]      netdev_get_by_index+0x5e/0x80
[ 6205.473447][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6205.473447][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6205.473447][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6205.473447][   T73]      ipv6_add_addr+0x411/0x2000
[ 6205.473447][   T73]      inet6_addr_add+0x30e/0xa40
[ 6205.473447][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6205.473447][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6205.473447][   T73]      netlink_rcv_skb+0x130/0x360
[ 6205.473447][   T73]      netlink_unicast+0x449/0x710
[ 6205.473447][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6205.473447][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6205.473447][   T73]      ___sys_sendmsg+0xee/0x170
[ 6205.473447][   T73]      __sys_sendmsg+0xcd/0x170
[ 6205.473447][   T73]      do_syscall_64+0xc6/0x1e0
[ 6205.473447][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6205.473447][   T73] 
[ 6205.475485][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6205.475485][   T73]      netdev_get_by_index+0x5e/0x80
[ 6205.475485][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6205.475485][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6205.475485][   T73]      ip6_route_add+0x1c/0x140
[ 6205.475485][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6205.475485][   T73]      addrconf_add_dev+0xe2/0x170
[ 6205.475485][   T73]      inet6_addr_add+0x12f/0xa40
[ 6205.475485][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6205.475485][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6205.475485][   T73]      netlink_rcv_skb+0x130/0x360
[ 6205.475485][   T73]      netlink_unicast+0x449/0x710
[ 6205.475485][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6205.475485][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6205.475485][   T73]      ___sys_sendmsg+0xee/0x170
[ 6205.475485][   T73]      __sys_sendmsg+0xcd/0x170
[ 6205.475485][   T73]      do_syscall_64+0xc6/0x1e0
[ 6205.475485][   T73] 
[ 6205.477479][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6205.477479][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6205.477479][   T73]      ipv6_find_idev+0x102/0x170
[ 6205.477479][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6205.477479][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6205.477479][   T73]      netlink_rcv_skb+0x130/0x360
[ 6205.477479][   T73]      netlink_unicast+0x449/0x710
[ 6205.477479][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6205.477479][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6205.477479][   T73]      ___sys_sendmsg+0xee/0x170
[ 6205.477479][   T73]      __sys_sendmsg+0xcd/0x170
[ 6205.477479][   T73]      do_syscall_64+0xc6/0x1e0
[ 6205.477479][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6205.477479][   T73] 
[ 6205.479084][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6205.479084][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6205.479084][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6205.479084][   T73]      ipv6_find_idev+0x102/0x170
[ 6205.479084][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6205.479084][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6205.479084][   T73]      netlink_rcv_skb+0x130/0x360
[ 6205.479084][   T73]      netlink_unicast+0x449/0x710
[ 6205.479084][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6205.479084][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6205.479084][   T73]      ___sys_sendmsg+0xee/0x170
[ 6205.479084][   T73]      __sys_sendmsg+0xcd/0x170
[ 6205.479084][   T73]      do_syscall_64+0xc6/0x1e0
[ 6205.479084][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6205.479084][   T73] 
[ 6205.480803][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6205.481086][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6205.481086][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6205.481086][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6205.481086][   T73]      fib6_nh_init+0xa22/0x1580
[ 6205.481086][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6205.481086][   T73]      ip6_route_add+0x1c/0x140
[ 6205.481086][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6205.481086][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6205.481086][   T73]      netlink_rcv_skb+0x130/0x360
[ 6205.481086][   T73]      netlink_unicast+0x449/0x710
[ 6205.481086][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6205.481086][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6205.481086][   T73]      ___sys_sendmsg+0xee/0x170
[ 6205.481086][   T73]      __sys_sendmsg+0xcd/0x170
[ 6205.481086][   T73]      do_syscall_64+0xc6/0x1e0
[ 6205.481086][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6205.481086][   T73] 
[ 6205.483183][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6205.483183][   T73]      dst_init+0x84/0x4a0
[ 6205.483183][   T73]      dst_alloc+0x97/0x150
[ 6205.483183][   T73]      ip6_dst_alloc+0x23/0x90
[ 6205.483183][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6205.483183][   T73]      ip6_pol_route+0x56f/0x840
[ 6205.483183][   T73]      fib6_rule_lookup+0x456/0x630
[ 6205.483183][   T73]      ip6_route_input+0x59c/0xa50
[ 6205.483183][   T73]      ipv6_rcv+0x397/0x810
[ 6205.483183][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6205.483183][   T73]      process_backlog+0x101/0x620
[ 6205.483183][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6205.483183][   T73]      net_rx_action+0x495/0xbe0
[ 6205.483183][   T73]      __do_softirq+0x1b5/0x7f6
[ 6205.483183][   T73] 
[ 6205.485033][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6205.485033][   T73]      netdev_get_by_index+0x5e/0x80
[ 6205.485033][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6205.485033][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6205.485033][   T73]      ip6_route_add+0x1c/0x140
[ 6205.485033][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6205.485033][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6205.485033][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6205.485033][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6205.485033][   T73]      netlink_rcv_skb+0x130/0x360
[ 6205.485033][   T73]      netlink_unicast+0x449/0x710
[ 6205.485033][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6205.485033][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6205.485033][   T73]      ___sys_sendmsg+0xee/0x170
[ 6205.485033][   T73]      __sys_sendmsg+0xcd/0x170
[ 6205.485033][   T73]      do_syscall_64+0xc6/0x1e0
[ 6205.485033][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6205.485033][   T73] 
[ 6205.487379][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6205.487379][   T73]      netdev_get_by_index+0x5e/0x80
[ 6205.487379][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6205.487379][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6205.487379][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6205.487379][   T73]      ipv6_add_addr+0x411/0x2000
[ 6205.487379][   T73]      inet6_addr_add+0x30e/0xa40
[ 6205.487379][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6205.487379][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6205.487379][   T73]      netlink_rcv_skb+0x130/0x360
[ 6205.487379][   T73]      netlink_unicast+0x449/0x710
[ 6205.487379][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6205.487379][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6205.487379][   T73]      ___sys_sendmsg+0xee/0x170
[ 6205.487379][   T73]      __sys_sendmsg+0xcd/0x170
[ 6205.487379][   T73]      do_syscall_64+0xc6/0x1e0
[ 6205.487379][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6205.487379][   T73] 
[ 6205.489665][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6205.489665][   T73]      netdev_get_by_index+0x5e/0x80
[ 6205.489665][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6205.489665][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6205.489665][   T73]      ip6_route_add+0x1c/0x140
[ 6205.489665][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6205.489665][   T73]      addrconf_add_dev+0xe2/0x170
[ 6205.489665][   T73]      inet6_addr_add+0x12f/0xa40
[ 6205.489665][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6205.489665][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6205.489665][   T73]      netlink_rcv_skb+0x130/0x360
[ 6205.489665][   T73]      netlink_unicast+0x449/0x710
[ 6205.489665][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6205.489665][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6205.489665][   T73]      ___sys_sendmsg+0xee/0x170
[ 6205.489665][   T73]      __sys_sendmsg+0xcd/0x170
[ 6205.489665][   T73]      do_syscall_64+0xc6/0x1e0
[ 6205.489665][   T73] 
[ 6205.491904][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6205.491904][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6205.491904][   T73]      ipv6_find_idev+0x102/0x170
[ 6205.491904][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6205.491904][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6205.491904][   T73]      netlink_rcv_skb+0x130/0x360
[ 6205.491904][   T73]      netlink_unicast+0x449/0x710
[ 6205.491904][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6205.491904][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6205.491904][   T73]      ___sys_sendmsg+0xee/0x170
[ 6205.491904][   T73]      __sys_sendmsg+0xcd/0x170
[ 6205.491904][   T73]      do_syscall_64+0xc6/0x1e0
[ 6205.491904][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6205.491904][   T73] 
[ 6205.493658][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6205.493658][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6205.493658][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6205.493658][   T73]      ipv6_find_idev+0x102/0x170
[ 6205.493658][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6205.493658][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6205.493658][   T73]      netlink_rcv_skb+0x130/0x360
[ 6205.493658][   T73]      netlink_unicast+0x449/0x710
[ 6205.493658][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6205.493658][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6205.493658][   T73]      ___sys_sendmsg+0xee/0x170
[ 6205.493658][   T73]      __sys_sendmsg+0xcd/0x170
[ 6205.493658][   T73]      do_syscall_64+0xc6/0x1e0
[ 6205.493658][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6205.493658][   T73] 
[ 6205.495628][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6205.496363][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6205.496363][   T73]      netdev_get_by_index+0x5e/0x80
[ 6205.496363][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6205.496363][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6205.496363][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6205.496363][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6205.496363][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6205.496363][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6205.496363][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6205.496363][   T73]      addrconf_dad_begin+0x310/0x670
[ 6205.496363][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6205.496363][   T73]      process_one_work+0x84d/0x18a0
[ 6205.496363][   T73]      worker_thread+0x587/0xd30
[ 6205.496363][   T73]      kthread+0x28a/0x350
[ 6205.496363][   T73]      ret_from_fork+0x31/0x70
[ 6205.496363][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6205.496363][   T73] 
[ 6205.498300][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6205.498300][   T73]      netdev_get_by_index+0x5e/0x80
[ 6205.498300][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6205.498300][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6205.498300][   T73]      ip6_route_add+0x1c/0x140
[ 6205.498300][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6205.498300][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6205.498300][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6205.498300][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6205.498300][   T73]      netlink_rcv_skb+0x130/0x360
[ 6205.498300][   T73]      netlink_unicast+0x449/0x710
[ 6205.498300][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6205.498300][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6205.498300][   T73]      ___sys_sendmsg+0xee/0x170
[ 6205.498300][   T73]      __sys_sendmsg+0xcd/0x170
[ 6205.498300][   T73]      do_syscall_64+0xc6/0x1e0
[ 6205.498300][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6205.498300][   T73] 
[ 6205.500432][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6205.500432][   T73]      netdev_get_by_index+0x5e/0x80
[ 6205.500432][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6205.500432][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6205.500432][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6205.500432][   T73]      ipv6_add_addr+0x411/0x2000
[ 6205.500432][   T73]      inet6_addr_add+0x30e/0xa40
[ 6205.500432][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6205.500432][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6205.500432][   T73]      netlink_rcv_skb+0x130/0x360
[ 6205.500432][   T73]      netlink_unicast+0x449/0x710
[ 6205.500432][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6205.500432][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6205.500432][   T73]      ___sys_sendmsg+0xee/0x170
[ 6205.500432][   T73]      __sys_sendmsg+0xcd/0x170
[ 6205.500432][   T73]      do_syscall_64+0xc6/0x1e0
[ 6205.500432][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6205.500432][   T73] 
[ 6205.502698][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6205.502698][   T73]      netdev_get_by_index+0x5e/0x80
[ 6205.502698][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6205.502698][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6205.502698][   T73]      ip6_route_add+0x1c/0x140
[ 6205.502698][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6205.502698][   T73]      addrconf_add_dev+0xe2/0x170
[ 6205.502698][   T73]      inet6_addr_add+0x12f/0xa40
[ 6205.502698][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6205.502698][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6205.502698][   T73]      netlink_rcv_skb+0x130/0x360
[ 6205.502698][   T73]      netlink_unicast+0x449/0x710
[ 6205.502698][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6205.502698][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6205.502698][   T73]      ___sys_sendmsg+0xee/0x170
[ 6205.502698][   T73]      __sys_sendmsg+0xcd/0x170
[ 6205.502698][   T73]      do_syscall_64+0xc6/0x1e0
[ 6205.502698][   T73] 
[ 6205.504875][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6205.504875][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6205.504875][   T73]      ipv6_find_idev+0x102/0x170
[ 6205.504875][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6205.504875][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6205.504875][   T73]      netlink_rcv_skb+0x130/0x360
[ 6205.504875][   T73]      netlink_unicast+0x449/0x710
[ 6205.504875][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6205.504875][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6205.504875][   T73]      ___sys_sendmsg+0xee/0x170
[ 6205.504875][   T73]      __sys_sendmsg+0xcd/0x170
[ 6205.504875][   T73]      do_syscall_64+0xc6/0x1e0
[ 6205.504875][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6205.504875][   T73] 
[ 6205.506624][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6205.506624][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6205.506624][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6205.506624][   T73]      ipv6_find_idev+0x102/0x170
[ 6205.506624][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6205.506624][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6205.506624][   T73]      netlink_rcv_skb+0x130/0x360
[ 6205.506624][   T73]      netlink_unicast+0x449/0x710
[ 6205.506624][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6205.506624][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6205.506624][   T73]      ___sys_sendmsg+0xee/0x170
[ 6205.506624][   T73]      __sys_sendmsg+0xcd/0x170
[ 6205.506624][   T73]      do_syscall_64+0xc6/0x1e0
[ 6205.506624][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6205.506624][   T73] 
[ 6215.575785][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6215.576332][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6215.576332][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6215.576332][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6215.576332][   T73]      fib6_nh_init+0xa22/0x1580
[ 6215.576332][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6215.576332][   T73]      ip6_route_add+0x1c/0x140
[ 6215.576332][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6215.576332][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6215.576332][   T73]      netlink_rcv_skb+0x130/0x360
[ 6215.576332][   T73]      netlink_unicast+0x449/0x710
[ 6215.576332][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6215.576332][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6215.576332][   T73]      ___sys_sendmsg+0xee/0x170
[ 6215.576332][   T73]      __sys_sendmsg+0xcd/0x170
[ 6215.576332][   T73]      do_syscall_64+0xc6/0x1e0
[ 6215.576332][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6215.576332][   T73] 
[ 6215.578470][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6215.578470][   T73]      dst_init+0x84/0x4a0
[ 6215.578470][   T73]      dst_alloc+0x97/0x150
[ 6215.578470][   T73]      ip6_dst_alloc+0x23/0x90
[ 6215.578470][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6215.578470][   T73]      ip6_pol_route+0x56f/0x840
[ 6215.578470][   T73]      fib6_rule_lookup+0x456/0x630
[ 6215.578470][   T73]      ip6_route_input+0x59c/0xa50
[ 6215.578470][   T73]      ipv6_rcv+0x397/0x810
[ 6215.578470][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6215.578470][   T73]      process_backlog+0x101/0x620
[ 6215.578470][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6215.578470][   T73]      net_rx_action+0x495/0xbe0
[ 6215.578470][   T73]      __do_softirq+0x1b5/0x7f6
[ 6215.578470][   T73] 
[ 6215.580306][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6215.580306][   T73]      netdev_get_by_index+0x5e/0x80
[ 6215.580306][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6215.580306][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6215.580306][   T73]      ip6_route_add+0x1c/0x140
[ 6215.580306][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6215.580306][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6215.580306][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6215.580306][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6215.580306][   T73]      netlink_rcv_skb+0x130/0x360
[ 6215.580306][   T73]      netlink_unicast+0x449/0x710
[ 6215.580306][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6215.580306][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6215.580306][   T73]      ___sys_sendmsg+0xee/0x170
[ 6215.580306][   T73]      __sys_sendmsg+0xcd/0x170
[ 6215.580306][   T73]      do_syscall_64+0xc6/0x1e0
[ 6215.580306][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6215.580306][   T73] 
[ 6215.582557][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6215.582557][   T73]      netdev_get_by_index+0x5e/0x80
[ 6215.582557][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6215.582557][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6215.582557][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6215.582557][   T73]      ipv6_add_addr+0x411/0x2000
[ 6215.582557][   T73]      inet6_addr_add+0x30e/0xa40
[ 6215.582557][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6215.582557][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6215.582557][   T73]      netlink_rcv_skb+0x130/0x360
[ 6215.582557][   T73]      netlink_unicast+0x449/0x710
[ 6215.582557][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6215.582557][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6215.582557][   T73]      ___sys_sendmsg+0xee/0x170
[ 6215.582557][   T73]      __sys_sendmsg+0xcd/0x170
[ 6215.582557][   T73]      do_syscall_64+0xc6/0x1e0
[ 6215.582557][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6215.582557][   T73] 
[ 6215.584796][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6215.584796][   T73]      netdev_get_by_index+0x5e/0x80
[ 6215.584796][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6215.584796][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6215.584796][   T73]      ip6_route_add+0x1c/0x140
[ 6215.584796][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6215.584796][   T73]      addrconf_add_dev+0xe2/0x170
[ 6215.584796][   T73]      inet6_addr_add+0x12f/0xa40
[ 6215.584796][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6215.584796][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6215.584796][   T73]      netlink_rcv_skb+0x130/0x360
[ 6215.584796][   T73]      netlink_unicast+0x449/0x710
[ 6215.584796][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6215.584796][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6215.584796][   T73]      ___sys_sendmsg+0xee/0x170
[ 6215.584796][   T73]      __sys_sendmsg+0xcd/0x170
[ 6215.584796][   T73]      do_syscall_64+0xc6/0x1e0
[ 6215.584796][   T73] 
[ 6215.587000][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6215.587000][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6215.587000][   T73]      ipv6_find_idev+0x102/0x170
[ 6215.587000][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6215.587000][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6215.587000][   T73]      netlink_rcv_skb+0x130/0x360
[ 6215.587000][   T73]      netlink_unicast+0x449/0x710
[ 6215.587000][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6215.587000][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6215.587000][   T73]      ___sys_sendmsg+0xee/0x170
[ 6215.587000][   T73]      __sys_sendmsg+0xcd/0x170
[ 6215.587000][   T73]      do_syscall_64+0xc6/0x1e0
[ 6215.587000][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6215.587000][   T73] 
[ 6215.588715][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6215.588715][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6215.588715][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6215.588715][   T73]      ipv6_find_idev+0x102/0x170
[ 6215.588715][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6215.588715][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6215.588715][   T73]      netlink_rcv_skb+0x130/0x360
[ 6215.588715][   T73]      netlink_unicast+0x449/0x710
[ 6215.588715][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6215.588715][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6215.588715][   T73]      ___sys_sendmsg+0xee/0x170
[ 6215.588715][   T73]      __sys_sendmsg+0xcd/0x170
[ 6215.588715][   T73]      do_syscall_64+0xc6/0x1e0
[ 6215.588715][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6215.588715][   T73] 
[ 6215.590594][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6215.590907][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6215.590907][   T73]      netdev_get_by_index+0x5e/0x80
[ 6215.590907][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6215.590907][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6215.590907][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6215.590907][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6215.590907][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6215.590907][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6215.590907][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6215.590907][   T73]      addrconf_dad_begin+0x310/0x670
[ 6215.590907][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6215.590907][   T73]      process_one_work+0x84d/0x18a0
[ 6215.590907][   T73]      worker_thread+0x587/0xd30
[ 6215.590907][   T73]      kthread+0x28a/0x350
[ 6215.590907][   T73]      ret_from_fork+0x31/0x70
[ 6215.590907][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6215.590907][   T73] 
[ 6215.593043][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6215.593043][   T73]      netdev_get_by_index+0x5e/0x80
[ 6215.593043][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6215.593043][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6215.593043][   T73]      ip6_route_add+0x1c/0x140
[ 6215.593043][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6215.593043][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6215.593043][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6215.593043][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6215.593043][   T73]      netlink_rcv_skb+0x130/0x360
[ 6215.593043][   T73]      netlink_unicast+0x449/0x710
[ 6215.593043][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6215.593043][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6215.593043][   T73]      ___sys_sendmsg+0xee/0x170
[ 6215.593043][   T73]      __sys_sendmsg+0xcd/0x170
[ 6215.593043][   T73]      do_syscall_64+0xc6/0x1e0
[ 6215.593043][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6215.593043][   T73] 
[ 6215.595243][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6215.595243][   T73]      netdev_get_by_index+0x5e/0x80
[ 6215.595243][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6215.595243][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6215.595243][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6215.595243][   T73]      ipv6_add_addr+0x411/0x2000
[ 6215.595243][   T73]      inet6_addr_add+0x30e/0xa40
[ 6215.595243][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6215.595243][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6215.595243][   T73]      netlink_rcv_skb+0x130/0x360
[ 6215.595243][   T73]      netlink_unicast+0x449/0x710
[ 6215.595243][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6215.595243][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6215.595243][   T73]      ___sys_sendmsg+0xee/0x170
[ 6215.595243][   T73]      __sys_sendmsg+0xcd/0x170
[ 6215.595243][   T73]      do_syscall_64+0xc6/0x1e0
[ 6215.595243][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6215.595243][   T73] 
[ 6215.597463][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6215.597463][   T73]      netdev_get_by_index+0x5e/0x80
[ 6215.597463][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6215.597463][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6215.597463][   T73]      ip6_route_add+0x1c/0x140
[ 6215.597463][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6215.597463][   T73]      addrconf_add_dev+0xe2/0x170
[ 6215.597463][   T73]      inet6_addr_add+0x12f/0xa40
[ 6215.597463][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6215.597463][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6215.597463][   T73]      netlink_rcv_skb+0x130/0x360
[ 6215.597463][   T73]      netlink_unicast+0x449/0x710
[ 6215.597463][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6215.597463][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6215.597463][   T73]      ___sys_sendmsg+0xee/0x170
[ 6215.597463][   T73]      __sys_sendmsg+0xcd/0x170
[ 6215.597463][   T73]      do_syscall_64+0xc6/0x1e0
[ 6215.597463][   T73] 
[ 6215.599661][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6215.599661][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6215.599661][   T73]      ipv6_find_idev+0x102/0x170
[ 6215.599661][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6215.599661][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6215.599661][   T73]      netlink_rcv_skb+0x130/0x360
[ 6215.599661][   T73]      netlink_unicast+0x449/0x710
[ 6215.599661][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6215.599661][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6215.599661][   T73]      ___sys_sendmsg+0xee/0x170
[ 6215.599661][   T73]      __sys_sendmsg+0xcd/0x170
[ 6215.599661][   T73]      do_syscall_64+0xc6/0x1e0
[ 6215.599661][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6215.599661][   T73] 
[ 6215.601362][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6215.601362][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6215.601362][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6215.601362][   T73]      ipv6_find_idev+0x102/0x170
[ 6215.601362][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6215.601362][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6215.601362][   T73]      netlink_rcv_skb+0x130/0x360
[ 6215.601362][   T73]      netlink_unicast+0x449/0x710
[ 6215.601362][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6215.601362][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6215.601362][   T73]      ___sys_sendmsg+0xee/0x170
[ 6215.601362][   T73]      __sys_sendmsg+0xcd/0x170
[ 6215.601362][   T73]      do_syscall_64+0xc6/0x1e0
[ 6215.601362][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6215.601362][   T73] 
[ 6215.603242][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6215.603529][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6215.603529][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6215.603529][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6215.603529][   T73]      fib6_nh_init+0xa22/0x1580
[ 6215.603529][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6215.603529][   T73]      ip6_route_add+0x1c/0x140
[ 6215.603529][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6215.603529][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6215.603529][   T73]      netlink_rcv_skb+0x130/0x360
[ 6215.603529][   T73]      netlink_unicast+0x449/0x710
[ 6215.603529][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6215.603529][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6215.603529][   T73]      ___sys_sendmsg+0xee/0x170
[ 6215.603529][   T73]      __sys_sendmsg+0xcd/0x170
[ 6215.603529][   T73]      do_syscall_64+0xc6/0x1e0
[ 6215.603529][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6215.603529][   T73] 
[ 6215.605828][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6215.605828][   T73]      dst_init+0x84/0x4a0
[ 6215.605828][   T73]      dst_alloc+0x97/0x150
[ 6215.605828][   T73]      ip6_dst_alloc+0x23/0x90
[ 6215.605828][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6215.605828][   T73]      ip6_pol_route+0x56f/0x840
[ 6215.605828][   T73]      fib6_rule_lookup+0x456/0x630
[ 6215.605828][   T73]      ip6_route_input+0x59c/0xa50
[ 6215.605828][   T73]      ipv6_rcv+0x397/0x810
[ 6215.605828][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6215.605828][   T73]      process_backlog+0x101/0x620
[ 6215.605828][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6215.605828][   T73]      net_rx_action+0x495/0xbe0
[ 6215.605828][   T73]      __do_softirq+0x1b5/0x7f6
[ 6215.605828][   T73] 
[ 6215.607897][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6215.607897][   T73]      netdev_get_by_index+0x5e/0x80
[ 6215.607897][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6215.607897][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6215.607897][   T73]      ip6_route_add+0x1c/0x140
[ 6215.607897][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6215.607897][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6215.607897][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6215.607897][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6215.607897][   T73]      netlink_rcv_skb+0x130/0x360
[ 6215.607897][   T73]      netlink_unicast+0x449/0x710
[ 6215.607897][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6215.607897][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6215.607897][   T73]      ___sys_sendmsg+0xee/0x170
[ 6215.607897][   T73]      __sys_sendmsg+0xcd/0x170
[ 6215.607897][   T73]      do_syscall_64+0xc6/0x1e0
[ 6215.607897][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6215.607897][   T73] 
[ 6215.610362][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6215.610362][   T73]      netdev_get_by_index+0x5e/0x80
[ 6215.610362][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6215.610362][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6215.610362][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6215.610362][   T73]      ipv6_add_addr+0x411/0x2000
[ 6215.610362][   T73]      inet6_addr_add+0x30e/0xa40
[ 6215.610362][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6215.610362][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6215.610362][   T73]      netlink_rcv_skb+0x130/0x360
[ 6215.610362][   T73]      netlink_unicast+0x449/0x710
[ 6215.610362][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6215.610362][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6215.610362][   T73]      ___sys_sendmsg+0xee/0x170
[ 6215.610362][   T73]      __sys_sendmsg+0xcd/0x170
[ 6215.610362][   T73]      do_syscall_64+0xc6/0x1e0
[ 6215.610362][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6215.610362][   T73] 
[ 6215.612782][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6215.612782][   T73]      netdev_get_by_index+0x5e/0x80
[ 6215.612782][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6215.612782][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6215.612782][   T73]      ip6_route_add+0x1c/0x140
[ 6215.612782][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6215.612782][   T73]      addrconf_add_dev+0xe2/0x170
[ 6215.612782][   T73]      inet6_addr_add+0x12f/0xa40
[ 6215.612782][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6215.612782][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6215.612782][   T73]      netlink_rcv_skb+0x130/0x360
[ 6215.612782][   T73]      netlink_unicast+0x449/0x710
[ 6215.612782][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6215.612782][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6215.612782][   T73]      ___sys_sendmsg+0xee/0x170
[ 6215.612782][   T73]      __sys_sendmsg+0xcd/0x170
[ 6215.612782][   T73]      do_syscall_64+0xc6/0x1e0
[ 6215.612782][   T73] 
[ 6215.615173][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6215.615173][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6215.615173][   T73]      ipv6_find_idev+0x102/0x170
[ 6215.615173][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6215.615173][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6215.615173][   T73]      netlink_rcv_skb+0x130/0x360
[ 6215.615173][   T73]      netlink_unicast+0x449/0x710
[ 6215.615173][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6215.615173][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6215.615173][   T73]      ___sys_sendmsg+0xee/0x170
[ 6215.615173][   T73]      __sys_sendmsg+0xcd/0x170
[ 6215.615173][   T73]      do_syscall_64+0xc6/0x1e0
[ 6215.615173][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6215.615173][   T73] 
[ 6215.617137][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6215.617137][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6215.617137][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6215.617137][   T73]      ipv6_find_idev+0x102/0x170
[ 6215.617137][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6215.617137][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6215.617137][   T73]      netlink_rcv_skb+0x130/0x360
[ 6215.617137][   T73]      netlink_unicast+0x449/0x710
[ 6215.617137][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6215.617137][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6215.617137][   T73]      ___sys_sendmsg+0xee/0x170
[ 6215.617137][   T73]      __sys_sendmsg+0xcd/0x170
[ 6215.617137][   T73]      do_syscall_64+0xc6/0x1e0
[ 6215.617137][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6215.617137][   T73] 
[ 6215.619208][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6215.619587][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6215.619587][   T73]      netdev_get_by_index+0x5e/0x80
[ 6215.619587][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6215.619587][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6215.619587][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6215.619587][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6215.619587][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6215.619587][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6215.619587][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6215.619587][   T73]      addrconf_dad_begin+0x310/0x670
[ 6215.619587][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6215.619587][   T73]      process_one_work+0x84d/0x18a0
[ 6215.619587][   T73]      worker_thread+0x587/0xd30
[ 6215.619587][   T73]      kthread+0x28a/0x350
[ 6215.619587][   T73]      ret_from_fork+0x31/0x70
[ 6215.619587][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6215.619587][   T73] 
[ 6215.621840][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6215.621840][   T73]      netdev_get_by_index+0x5e/0x80
[ 6215.621840][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6215.621840][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6215.621840][   T73]      ip6_route_add+0x1c/0x140
[ 6215.621840][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6215.621840][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6215.621840][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6215.621840][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6215.621840][   T73]      netlink_rcv_skb+0x130/0x360
[ 6215.621840][   T73]      netlink_unicast+0x449/0x710
[ 6215.621840][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6215.621840][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6215.621840][   T73]      ___sys_sendmsg+0xee/0x170
[ 6215.621840][   T73]      __sys_sendmsg+0xcd/0x170
[ 6215.621840][   T73]      do_syscall_64+0xc6/0x1e0
[ 6215.621840][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6215.621840][   T73] 
[ 6215.624313][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6215.624313][   T73]      netdev_get_by_index+0x5e/0x80
[ 6215.624313][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6215.624313][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6215.624313][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6215.624313][   T73]      ipv6_add_addr+0x411/0x2000
[ 6215.624313][   T73]      inet6_addr_add+0x30e/0xa40
[ 6215.624313][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6215.624313][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6215.624313][   T73]      netlink_rcv_skb+0x130/0x360
[ 6215.624313][   T73]      netlink_unicast+0x449/0x710
[ 6215.624313][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6215.624313][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6215.624313][   T73]      ___sys_sendmsg+0xee/0x170
[ 6215.624313][   T73]      __sys_sendmsg+0xcd/0x170
[ 6215.624313][   T73]      do_syscall_64+0xc6/0x1e0
[ 6215.624313][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6215.624313][   T73] 
[ 6215.626786][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6215.626786][   T73]      netdev_get_by_index+0x5e/0x80
[ 6215.626786][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6215.626786][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6215.626786][   T73]      ip6_route_add+0x1c/0x140
[ 6215.626786][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6215.626786][   T73]      addrconf_add_dev+0xe2/0x170
[ 6215.626786][   T73]      inet6_addr_add+0x12f/0xa40
[ 6215.626786][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6215.626786][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6215.626786][   T73]      netlink_rcv_skb+0x130/0x360
[ 6215.626786][   T73]      netlink_unicast+0x449/0x710
[ 6215.626786][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6215.626786][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6215.626786][   T73]      ___sys_sendmsg+0xee/0x170
[ 6215.626786][   T73]      __sys_sendmsg+0xcd/0x170
[ 6215.626786][   T73]      do_syscall_64+0xc6/0x1e0
[ 6215.626786][   T73] 
[ 6215.629296][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6215.629296][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6215.629296][   T73]      ipv6_find_idev+0x102/0x170
[ 6215.629296][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6215.629296][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6215.629296][   T73]      netlink_rcv_skb+0x130/0x360
[ 6215.629296][   T73]      netlink_unicast+0x449/0x710
[ 6215.629296][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6215.629296][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6215.629296][   T73]      ___sys_sendmsg+0xee/0x170
[ 6215.629296][   T73]      __sys_sendmsg+0xcd/0x170
[ 6215.629296][   T73]      do_syscall_64+0xc6/0x1e0
[ 6215.629296][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6215.629296][   T73] 
[ 6215.631210][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6215.631210][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6215.631210][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6215.631210][   T73]      ipv6_find_idev+0x102/0x170
[ 6215.631210][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6215.631210][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6215.631210][   T73]      netlink_rcv_skb+0x130/0x360
[ 6215.631210][   T73]      netlink_unicast+0x449/0x710
[ 6215.631210][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6215.631210][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6215.631210][   T73]      ___sys_sendmsg+0xee/0x170
[ 6215.631210][   T73]      __sys_sendmsg+0xcd/0x170
[ 6215.631210][   T73]      do_syscall_64+0xc6/0x1e0
[ 6215.631210][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6215.631210][   T73] 
[ 6225.871771][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6225.872271][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6225.872271][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6225.872271][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6225.872271][   T73]      fib6_nh_init+0xa22/0x1580
[ 6225.872271][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6225.872271][   T73]      ip6_route_add+0x1c/0x140
[ 6225.872271][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6225.872271][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6225.872271][   T73]      netlink_rcv_skb+0x130/0x360
[ 6225.872271][   T73]      netlink_unicast+0x449/0x710
[ 6225.872271][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6225.872271][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6225.872271][   T73]      ___sys_sendmsg+0xee/0x170
[ 6225.872271][   T73]      __sys_sendmsg+0xcd/0x170
[ 6225.872271][   T73]      do_syscall_64+0xc6/0x1e0
[ 6225.872271][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6225.872271][   T73] 
[ 6225.874405][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6225.874405][   T73]      dst_init+0x84/0x4a0
[ 6225.874405][   T73]      dst_alloc+0x97/0x150
[ 6225.874405][   T73]      ip6_dst_alloc+0x23/0x90
[ 6225.874405][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6225.874405][   T73]      ip6_pol_route+0x56f/0x840
[ 6225.874405][   T73]      fib6_rule_lookup+0x456/0x630
[ 6225.874405][   T73]      ip6_route_input+0x59c/0xa50
[ 6225.874405][   T73]      ipv6_rcv+0x397/0x810
[ 6225.874405][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6225.874405][   T73]      process_backlog+0x101/0x620
[ 6225.874405][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6225.874405][   T73]      net_rx_action+0x495/0xbe0
[ 6225.874405][   T73]      __do_softirq+0x1b5/0x7f6
[ 6225.874405][   T73] 
[ 6225.876239][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6225.876239][   T73]      netdev_get_by_index+0x5e/0x80
[ 6225.876239][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6225.876239][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6225.876239][   T73]      ip6_route_add+0x1c/0x140
[ 6225.876239][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6225.876239][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6225.876239][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6225.876239][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6225.876239][   T73]      netlink_rcv_skb+0x130/0x360
[ 6225.876239][   T73]      netlink_unicast+0x449/0x710
[ 6225.876239][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6225.876239][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6225.876239][   T73]      ___sys_sendmsg+0xee/0x170
[ 6225.876239][   T73]      __sys_sendmsg+0xcd/0x170
[ 6225.876239][   T73]      do_syscall_64+0xc6/0x1e0
[ 6225.876239][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6225.876239][   T73] 
[ 6225.878486][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6225.878486][   T73]      netdev_get_by_index+0x5e/0x80
[ 6225.878486][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6225.878486][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6225.878486][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6225.878486][   T73]      ipv6_add_addr+0x411/0x2000
[ 6225.878486][   T73]      inet6_addr_add+0x30e/0xa40
[ 6225.878486][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6225.878486][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6225.878486][   T73]      netlink_rcv_skb+0x130/0x360
[ 6225.878486][   T73]      netlink_unicast+0x449/0x710
[ 6225.878486][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6225.878486][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6225.878486][   T73]      ___sys_sendmsg+0xee/0x170
[ 6225.878486][   T73]      __sys_sendmsg+0xcd/0x170
[ 6225.878486][   T73]      do_syscall_64+0xc6/0x1e0
[ 6225.878486][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6225.878486][   T73] 
[ 6225.880723][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6225.880723][   T73]      netdev_get_by_index+0x5e/0x80
[ 6225.880723][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6225.880723][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6225.880723][   T73]      ip6_route_add+0x1c/0x140
[ 6225.880723][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6225.880723][   T73]      addrconf_add_dev+0xe2/0x170
[ 6225.880723][   T73]      inet6_addr_add+0x12f/0xa40
[ 6225.880723][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6225.880723][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6225.880723][   T73]      netlink_rcv_skb+0x130/0x360
[ 6225.880723][   T73]      netlink_unicast+0x449/0x710
[ 6225.880723][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6225.880723][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6225.880723][   T73]      ___sys_sendmsg+0xee/0x170
[ 6225.880723][   T73]      __sys_sendmsg+0xcd/0x170
[ 6225.880723][   T73]      do_syscall_64+0xc6/0x1e0
[ 6225.880723][   T73] 
[ 6225.882942][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6225.882942][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6225.882942][   T73]      ipv6_find_idev+0x102/0x170
[ 6225.882942][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6225.882942][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6225.882942][   T73]      netlink_rcv_skb+0x130/0x360
[ 6225.882942][   T73]      netlink_unicast+0x449/0x710
[ 6225.882942][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6225.882942][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6225.882942][   T73]      ___sys_sendmsg+0xee/0x170
[ 6225.882942][   T73]      __sys_sendmsg+0xcd/0x170
[ 6225.882942][   T73]      do_syscall_64+0xc6/0x1e0
[ 6225.882942][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6225.882942][   T73] 
[ 6225.884705][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6225.884705][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6225.884705][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6225.884705][   T73]      ipv6_find_idev+0x102/0x170
[ 6225.884705][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6225.884705][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6225.884705][   T73]      netlink_rcv_skb+0x130/0x360
[ 6225.884705][   T73]      netlink_unicast+0x449/0x710
[ 6225.884705][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6225.884705][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6225.884705][   T73]      ___sys_sendmsg+0xee/0x170
[ 6225.884705][   T73]      __sys_sendmsg+0xcd/0x170
[ 6225.884705][   T73]      do_syscall_64+0xc6/0x1e0
[ 6225.884705][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6225.884705][   T73] 
[ 6225.886623][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6225.886950][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6225.886950][   T73]      netdev_get_by_index+0x5e/0x80
[ 6225.886950][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6225.886950][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6225.886950][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6225.886950][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6225.886950][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6225.886950][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6225.886950][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6225.886950][   T73]      addrconf_dad_begin+0x310/0x670
[ 6225.886950][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6225.886950][   T73]      process_one_work+0x84d/0x18a0
[ 6225.886950][   T73]      worker_thread+0x587/0xd30
[ 6225.886950][   T73]      kthread+0x28a/0x350
[ 6225.886950][   T73]      ret_from_fork+0x31/0x70
[ 6225.886950][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6225.886950][   T73] 
[ 6225.889104][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6225.889104][   T73]      netdev_get_by_index+0x5e/0x80
[ 6225.889104][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6225.889104][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6225.889104][   T73]      ip6_route_add+0x1c/0x140
[ 6225.889104][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6225.889104][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6225.889104][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6225.889104][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6225.889104][   T73]      netlink_rcv_skb+0x130/0x360
[ 6225.889104][   T73]      netlink_unicast+0x449/0x710
[ 6225.889104][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6225.889104][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6225.889104][   T73]      ___sys_sendmsg+0xee/0x170
[ 6225.889104][   T73]      __sys_sendmsg+0xcd/0x170
[ 6225.889104][   T73]      do_syscall_64+0xc6/0x1e0
[ 6225.889104][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6225.889104][   T73] 
[ 6225.891355][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6225.891355][   T73]      netdev_get_by_index+0x5e/0x80
[ 6225.891355][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6225.891355][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6225.891355][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6225.891355][   T73]      ipv6_add_addr+0x411/0x2000
[ 6225.891355][   T73]      inet6_addr_add+0x30e/0xa40
[ 6225.891355][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6225.891355][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6225.891355][   T73]      netlink_rcv_skb+0x130/0x360
[ 6225.891355][   T73]      netlink_unicast+0x449/0x710
[ 6225.891355][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6225.891355][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6225.891355][   T73]      ___sys_sendmsg+0xee/0x170
[ 6225.891355][   T73]      __sys_sendmsg+0xcd/0x170
[ 6225.891355][   T73]      do_syscall_64+0xc6/0x1e0
[ 6225.891355][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6225.891355][   T73] 
[ 6225.893716][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6225.893716][   T73]      netdev_get_by_index+0x5e/0x80
[ 6225.893716][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6225.893716][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6225.893716][   T73]      ip6_route_add+0x1c/0x140
[ 6225.893716][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6225.893716][   T73]      addrconf_add_dev+0xe2/0x170
[ 6225.893716][   T73]      inet6_addr_add+0x12f/0xa40
[ 6225.893716][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6225.893716][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6225.893716][   T73]      netlink_rcv_skb+0x130/0x360
[ 6225.893716][   T73]      netlink_unicast+0x449/0x710
[ 6225.893716][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6225.893716][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6225.893716][   T73]      ___sys_sendmsg+0xee/0x170
[ 6225.893716][   T73]      __sys_sendmsg+0xcd/0x170
[ 6225.893716][   T73]      do_syscall_64+0xc6/0x1e0
[ 6225.893716][   T73] 
[ 6225.895950][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6225.895950][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6225.895950][   T73]      ipv6_find_idev+0x102/0x170
[ 6225.895950][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6225.895950][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6225.895950][   T73]      netlink_rcv_skb+0x130/0x360
[ 6225.895950][   T73]      netlink_unicast+0x449/0x710
[ 6225.895950][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6225.895950][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6225.895950][   T73]      ___sys_sendmsg+0xee/0x170
[ 6225.895950][   T73]      __sys_sendmsg+0xcd/0x170
[ 6225.895950][   T73]      do_syscall_64+0xc6/0x1e0
[ 6225.895950][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6225.895950][   T73] 
[ 6225.897690][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6225.897690][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6225.897690][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6225.897690][   T73]      ipv6_find_idev+0x102/0x170
[ 6225.897690][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6225.897690][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6225.897690][   T73]      netlink_rcv_skb+0x130/0x360
[ 6225.897690][   T73]      netlink_unicast+0x449/0x710
[ 6225.897690][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6225.897690][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6225.897690][   T73]      ___sys_sendmsg+0xee/0x170
[ 6225.897690][   T73]      __sys_sendmsg+0xcd/0x170
[ 6225.897690][   T73]      do_syscall_64+0xc6/0x1e0
[ 6225.897690][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6225.897690][   T73] 
[ 6225.899591][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6225.899893][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6225.899893][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6225.899893][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6225.899893][   T73]      fib6_nh_init+0xa22/0x1580
[ 6225.899893][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6225.899893][   T73]      ip6_route_add+0x1c/0x140
[ 6225.899893][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6225.899893][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6225.899893][   T73]      netlink_rcv_skb+0x130/0x360
[ 6225.899893][   T73]      netlink_unicast+0x449/0x710
[ 6225.899893][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6225.899893][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6225.899893][   T73]      ___sys_sendmsg+0xee/0x170
[ 6225.899893][   T73]      __sys_sendmsg+0xcd/0x170
[ 6225.899893][   T73]      do_syscall_64+0xc6/0x1e0
[ 6225.899893][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6225.899893][   T73] 
[ 6225.902207][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6225.902207][   T73]      dst_init+0x84/0x4a0
[ 6225.902207][   T73]      dst_alloc+0x97/0x150
[ 6225.902207][   T73]      ip6_dst_alloc+0x23/0x90
[ 6225.902207][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6225.902207][   T73]      ip6_pol_route+0x56f/0x840
[ 6225.902207][   T73]      fib6_rule_lookup+0x456/0x630
[ 6225.902207][   T73]      ip6_route_input+0x59c/0xa50
[ 6225.902207][   T73]      ipv6_rcv+0x397/0x810
[ 6225.902207][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6225.902207][   T73]      process_backlog+0x101/0x620
[ 6225.902207][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6225.902207][   T73]      net_rx_action+0x495/0xbe0
[ 6225.902207][   T73]      __do_softirq+0x1b5/0x7f6
[ 6225.902207][   T73] 
[ 6225.904222][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6225.904222][   T73]      netdev_get_by_index+0x5e/0x80
[ 6225.904222][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6225.904222][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6225.904222][   T73]      ip6_route_add+0x1c/0x140
[ 6225.904222][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6225.904222][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6225.904222][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6225.904222][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6225.904222][   T73]      netlink_rcv_skb+0x130/0x360
[ 6225.904222][   T73]      netlink_unicast+0x449/0x710
[ 6225.904222][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6225.904222][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6225.904222][   T73]      ___sys_sendmsg+0xee/0x170
[ 6225.904222][   T73]      __sys_sendmsg+0xcd/0x170
[ 6225.904222][   T73]      do_syscall_64+0xc6/0x1e0
[ 6225.904222][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6225.904222][   T73] 
[ 6225.906723][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6225.906723][   T73]      netdev_get_by_index+0x5e/0x80
[ 6225.906723][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6225.906723][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6225.906723][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6225.906723][   T73]      ipv6_add_addr+0x411/0x2000
[ 6225.906723][   T73]      inet6_addr_add+0x30e/0xa40
[ 6225.906723][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6225.906723][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6225.906723][   T73]      netlink_rcv_skb+0x130/0x360
[ 6225.906723][   T73]      netlink_unicast+0x449/0x710
[ 6225.906723][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6225.906723][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6225.906723][   T73]      ___sys_sendmsg+0xee/0x170
[ 6225.906723][   T73]      __sys_sendmsg+0xcd/0x170
[ 6225.906723][   T73]      do_syscall_64+0xc6/0x1e0
[ 6225.906723][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6225.906723][   T73] 
[ 6225.909256][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6225.909256][   T73]      netdev_get_by_index+0x5e/0x80
[ 6225.909256][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6225.909256][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6225.909256][   T73]      ip6_route_add+0x1c/0x140
[ 6225.909256][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6225.909256][   T73]      addrconf_add_dev+0xe2/0x170
[ 6225.909256][   T73]      inet6_addr_add+0x12f/0xa40
[ 6225.909256][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6225.909256][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6225.909256][   T73]      netlink_rcv_skb+0x130/0x360
[ 6225.909256][   T73]      netlink_unicast+0x449/0x710
[ 6225.909256][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6225.909256][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6225.909256][   T73]      ___sys_sendmsg+0xee/0x170
[ 6225.909256][   T73]      __sys_sendmsg+0xcd/0x170
[ 6225.909256][   T73]      do_syscall_64+0xc6/0x1e0
[ 6225.909256][   T73] 
[ 6225.911720][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6225.911720][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6225.911720][   T73]      ipv6_find_idev+0x102/0x170
[ 6225.911720][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6225.911720][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6225.911720][   T73]      netlink_rcv_skb+0x130/0x360
[ 6225.911720][   T73]      netlink_unicast+0x449/0x710
[ 6225.911720][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6225.911720][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6225.911720][   T73]      ___sys_sendmsg+0xee/0x170
[ 6225.911720][   T73]      __sys_sendmsg+0xcd/0x170
[ 6225.911720][   T73]      do_syscall_64+0xc6/0x1e0
[ 6225.911720][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6225.911720][   T73] 
[ 6225.913640][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6225.913640][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6225.913640][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6225.913640][   T73]      ipv6_find_idev+0x102/0x170
[ 6225.913640][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6225.913640][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6225.913640][   T73]      netlink_rcv_skb+0x130/0x360
[ 6225.913640][   T73]      netlink_unicast+0x449/0x710
[ 6225.913640][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6225.913640][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6225.913640][   T73]      ___sys_sendmsg+0xee/0x170
[ 6225.913640][   T73]      __sys_sendmsg+0xcd/0x170
[ 6225.913640][   T73]      do_syscall_64+0xc6/0x1e0
[ 6225.913640][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6225.913640][   T73] 
[ 6225.915722][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6225.916084][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6225.916084][   T73]      netdev_get_by_index+0x5e/0x80
[ 6225.916084][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6225.916084][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6225.916084][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6225.916084][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6225.916084][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6225.916084][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6225.916084][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6225.916084][   T73]      addrconf_dad_begin+0x310/0x670
[ 6225.916084][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6225.916084][   T73]      process_one_work+0x84d/0x18a0
[ 6225.916084][   T73]      worker_thread+0x587/0xd30
[ 6225.916084][   T73]      kthread+0x28a/0x350
[ 6225.916084][   T73]      ret_from_fork+0x31/0x70
[ 6225.916084][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6225.916084][   T73] 
[ 6225.918433][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6225.918433][   T73]      netdev_get_by_index+0x5e/0x80
[ 6225.918433][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6225.918433][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6225.918433][   T73]      ip6_route_add+0x1c/0x140
[ 6225.918433][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6225.918433][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6225.918433][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6225.918433][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6225.918433][   T73]      netlink_rcv_skb+0x130/0x360
[ 6225.918433][   T73]      netlink_unicast+0x449/0x710
[ 6225.918433][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6225.918433][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6225.918433][   T73]      ___sys_sendmsg+0xee/0x170
[ 6225.918433][   T73]      __sys_sendmsg+0xcd/0x170
[ 6225.918433][   T73]      do_syscall_64+0xc6/0x1e0
[ 6225.918433][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6225.918433][   T73] 
[ 6225.920986][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6225.920986][   T73]      netdev_get_by_index+0x5e/0x80
[ 6225.920986][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6225.920986][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6225.920986][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6225.920986][   T73]      ipv6_add_addr+0x411/0x2000
[ 6225.920986][   T73]      inet6_addr_add+0x30e/0xa40
[ 6225.920986][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6225.920986][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6225.920986][   T73]      netlink_rcv_skb+0x130/0x360
[ 6225.920986][   T73]      netlink_unicast+0x449/0x710
[ 6225.920986][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6225.920986][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6225.920986][   T73]      ___sys_sendmsg+0xee/0x170
[ 6225.920986][   T73]      __sys_sendmsg+0xcd/0x170
[ 6225.920986][   T73]      do_syscall_64+0xc6/0x1e0
[ 6225.920986][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6225.920986][   T73] 
[ 6225.923466][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6225.923466][   T73]      netdev_get_by_index+0x5e/0x80
[ 6225.923466][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6225.923466][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6225.923466][   T73]      ip6_route_add+0x1c/0x140
[ 6225.923466][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6225.923466][   T73]      addrconf_add_dev+0xe2/0x170
[ 6225.923466][   T73]      inet6_addr_add+0x12f/0xa40
[ 6225.923466][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6225.923466][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6225.923466][   T73]      netlink_rcv_skb+0x130/0x360
[ 6225.923466][   T73]      netlink_unicast+0x449/0x710
[ 6225.923466][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6225.923466][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6225.923466][   T73]      ___sys_sendmsg+0xee/0x170
[ 6225.923466][   T73]      __sys_sendmsg+0xcd/0x170
[ 6225.923466][   T73]      do_syscall_64+0xc6/0x1e0
[ 6225.923466][   T73] 
[ 6225.926461][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6225.926461][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6225.926461][   T73]      ipv6_find_idev+0x102/0x170
[ 6225.926461][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6225.926461][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6225.926461][   T73]      netlink_rcv_skb+0x130/0x360
[ 6225.926461][   T73]      netlink_unicast+0x449/0x710
[ 6225.926461][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6225.926461][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6225.926461][   T73]      ___sys_sendmsg+0xee/0x170
[ 6225.926461][   T73]      __sys_sendmsg+0xcd/0x170
[ 6225.926461][   T73]      do_syscall_64+0xc6/0x1e0
[ 6225.926461][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6225.926461][   T73] 
[ 6225.928381][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6225.928381][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6225.928381][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6225.928381][   T73]      ipv6_find_idev+0x102/0x170
[ 6225.928381][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6225.928381][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6225.928381][   T73]      netlink_rcv_skb+0x130/0x360
[ 6225.928381][   T73]      netlink_unicast+0x449/0x710
[ 6225.928381][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6225.928381][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6225.928381][   T73]      ___sys_sendmsg+0xee/0x170
[ 6225.928381][   T73]      __sys_sendmsg+0xcd/0x170
[ 6225.928381][   T73]      do_syscall_64+0xc6/0x1e0
[ 6225.928381][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6225.928381][   T73] 
[ 6236.119737][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6236.120202][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6236.120202][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6236.120202][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6236.120202][   T73]      fib6_nh_init+0xa22/0x1580
[ 6236.120202][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6236.120202][   T73]      ip6_route_add+0x1c/0x140
[ 6236.120202][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6236.120202][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6236.120202][   T73]      netlink_rcv_skb+0x130/0x360
[ 6236.120202][   T73]      netlink_unicast+0x449/0x710
[ 6236.120202][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6236.120202][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6236.120202][   T73]      ___sys_sendmsg+0xee/0x170
[ 6236.120202][   T73]      __sys_sendmsg+0xcd/0x170
[ 6236.120202][   T73]      do_syscall_64+0xc6/0x1e0
[ 6236.120202][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6236.120202][   T73] 
[ 6236.122342][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6236.122342][   T73]      dst_init+0x84/0x4a0
[ 6236.122342][   T73]      dst_alloc+0x97/0x150
[ 6236.122342][   T73]      ip6_dst_alloc+0x23/0x90
[ 6236.122342][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6236.122342][   T73]      ip6_pol_route+0x56f/0x840
[ 6236.122342][   T73]      fib6_rule_lookup+0x456/0x630
[ 6236.122342][   T73]      ip6_route_input+0x59c/0xa50
[ 6236.122342][   T73]      ipv6_rcv+0x397/0x810
[ 6236.122342][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6236.122342][   T73]      process_backlog+0x101/0x620
[ 6236.122342][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6236.122342][   T73]      net_rx_action+0x495/0xbe0
[ 6236.122342][   T73]      __do_softirq+0x1b5/0x7f6
[ 6236.122342][   T73] 
[ 6236.124173][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6236.124173][   T73]      netdev_get_by_index+0x5e/0x80
[ 6236.124173][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6236.124173][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6236.124173][   T73]      ip6_route_add+0x1c/0x140
[ 6236.124173][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6236.124173][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6236.124173][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6236.124173][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6236.124173][   T73]      netlink_rcv_skb+0x130/0x360
[ 6236.124173][   T73]      netlink_unicast+0x449/0x710
[ 6236.124173][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6236.124173][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6236.124173][   T73]      ___sys_sendmsg+0xee/0x170
[ 6236.124173][   T73]      __sys_sendmsg+0xcd/0x170
[ 6236.124173][   T73]      do_syscall_64+0xc6/0x1e0
[ 6236.124173][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6236.124173][   T73] 
[ 6236.128171][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6236.128171][   T73]      netdev_get_by_index+0x5e/0x80
[ 6236.128171][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6236.128171][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6236.128171][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6236.128171][   T73]      ipv6_add_addr+0x411/0x2000
[ 6236.128171][   T73]      inet6_addr_add+0x30e/0xa40
[ 6236.128171][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6236.128171][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6236.128171][   T73]      netlink_rcv_skb+0x130/0x360
[ 6236.128171][   T73]      netlink_unicast+0x449/0x710
[ 6236.128171][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6236.128171][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6236.128171][   T73]      ___sys_sendmsg+0xee/0x170
[ 6236.128171][   T73]      __sys_sendmsg+0xcd/0x170
[ 6236.128171][   T73]      do_syscall_64+0xc6/0x1e0
[ 6236.128171][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6236.128171][   T73] 
[ 6236.130426][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6236.130426][   T73]      netdev_get_by_index+0x5e/0x80
[ 6236.130426][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6236.130426][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6236.130426][   T73]      ip6_route_add+0x1c/0x140
[ 6236.130426][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6236.130426][   T73]      addrconf_add_dev+0xe2/0x170
[ 6236.130426][   T73]      inet6_addr_add+0x12f/0xa40
[ 6236.130426][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6236.130426][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6236.130426][   T73]      netlink_rcv_skb+0x130/0x360
[ 6236.130426][   T73]      netlink_unicast+0x449/0x710
[ 6236.130426][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6236.130426][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6236.130426][   T73]      ___sys_sendmsg+0xee/0x170
[ 6236.130426][   T73]      __sys_sendmsg+0xcd/0x170
[ 6236.130426][   T73]      do_syscall_64+0xc6/0x1e0
[ 6236.130426][   T73] 
[ 6236.132614][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6236.132614][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6236.132614][   T73]      ipv6_find_idev+0x102/0x170
[ 6236.132614][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6236.132614][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6236.132614][   T73]      netlink_rcv_skb+0x130/0x360
[ 6236.132614][   T73]      netlink_unicast+0x449/0x710
[ 6236.132614][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6236.132614][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6236.132614][   T73]      ___sys_sendmsg+0xee/0x170
[ 6236.132614][   T73]      __sys_sendmsg+0xcd/0x170
[ 6236.132614][   T73]      do_syscall_64+0xc6/0x1e0
[ 6236.132614][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6236.132614][   T73] 
[ 6236.134345][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6236.134345][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6236.134345][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6236.134345][   T73]      ipv6_find_idev+0x102/0x170
[ 6236.134345][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6236.134345][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6236.134345][   T73]      netlink_rcv_skb+0x130/0x360
[ 6236.134345][   T73]      netlink_unicast+0x449/0x710
[ 6236.134345][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6236.134345][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6236.134345][   T73]      ___sys_sendmsg+0xee/0x170
[ 6236.134345][   T73]      __sys_sendmsg+0xcd/0x170
[ 6236.134345][   T73]      do_syscall_64+0xc6/0x1e0
[ 6236.134345][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6236.134345][   T73] 
[ 6236.136247][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6236.136566][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6236.136566][   T73]      netdev_get_by_index+0x5e/0x80
[ 6236.136566][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6236.136566][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6236.136566][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6236.136566][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6236.136566][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6236.136566][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6236.136566][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6236.136566][   T73]      addrconf_dad_begin+0x310/0x670
[ 6236.136566][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6236.136566][   T73]      process_one_work+0x84d/0x18a0
[ 6236.136566][   T73]      worker_thread+0x587/0xd30
[ 6236.136566][   T73]      kthread+0x28a/0x350
[ 6236.136566][   T73]      ret_from_fork+0x31/0x70
[ 6236.136566][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6236.136566][   T73] 
[ 6236.138701][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6236.138701][   T73]      netdev_get_by_index+0x5e/0x80
[ 6236.138701][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6236.138701][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6236.138701][   T73]      ip6_route_add+0x1c/0x140
[ 6236.138701][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6236.138701][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6236.138701][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6236.138701][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6236.138701][   T73]      netlink_rcv_skb+0x130/0x360
[ 6236.138701][   T73]      netlink_unicast+0x449/0x710
[ 6236.138701][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6236.138701][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6236.138701][   T73]      ___sys_sendmsg+0xee/0x170
[ 6236.138701][   T73]      __sys_sendmsg+0xcd/0x170
[ 6236.138701][   T73]      do_syscall_64+0xc6/0x1e0
[ 6236.138701][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6236.138701][   T73] 
[ 6236.140947][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6236.140947][   T73]      netdev_get_by_index+0x5e/0x80
[ 6236.140947][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6236.140947][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6236.140947][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6236.140947][   T73]      ipv6_add_addr+0x411/0x2000
[ 6236.140947][   T73]      inet6_addr_add+0x30e/0xa40
[ 6236.140947][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6236.140947][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6236.140947][   T73]      netlink_rcv_skb+0x130/0x360
[ 6236.140947][   T73]      netlink_unicast+0x449/0x710
[ 6236.140947][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6236.140947][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6236.140947][   T73]      ___sys_sendmsg+0xee/0x170
[ 6236.140947][   T73]      __sys_sendmsg+0xcd/0x170
[ 6236.140947][   T73]      do_syscall_64+0xc6/0x1e0
[ 6236.140947][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6236.140947][   T73] 
[ 6236.143189][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6236.143189][   T73]      netdev_get_by_index+0x5e/0x80
[ 6236.143189][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6236.143189][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6236.143189][   T73]      ip6_route_add+0x1c/0x140
[ 6236.143189][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6236.143189][   T73]      addrconf_add_dev+0xe2/0x170
[ 6236.143189][   T73]      inet6_addr_add+0x12f/0xa40
[ 6236.143189][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6236.143189][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6236.143189][   T73]      netlink_rcv_skb+0x130/0x360
[ 6236.143189][   T73]      netlink_unicast+0x449/0x710
[ 6236.143189][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6236.143189][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6236.143189][   T73]      ___sys_sendmsg+0xee/0x170
[ 6236.143189][   T73]      __sys_sendmsg+0xcd/0x170
[ 6236.143189][   T73]      do_syscall_64+0xc6/0x1e0
[ 6236.143189][   T73] 
[ 6236.145393][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6236.145393][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6236.145393][   T73]      ipv6_find_idev+0x102/0x170
[ 6236.145393][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6236.145393][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6236.145393][   T73]      netlink_rcv_skb+0x130/0x360
[ 6236.145393][   T73]      netlink_unicast+0x449/0x710
[ 6236.145393][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6236.145393][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6236.145393][   T73]      ___sys_sendmsg+0xee/0x170
[ 6236.145393][   T73]      __sys_sendmsg+0xcd/0x170
[ 6236.145393][   T73]      do_syscall_64+0xc6/0x1e0
[ 6236.145393][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6236.145393][   T73] 
[ 6236.147124][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6236.147124][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6236.147124][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6236.147124][   T73]      ipv6_find_idev+0x102/0x170
[ 6236.147124][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6236.147124][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6236.147124][   T73]      netlink_rcv_skb+0x130/0x360
[ 6236.147124][   T73]      netlink_unicast+0x449/0x710
[ 6236.147124][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6236.147124][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6236.147124][   T73]      ___sys_sendmsg+0xee/0x170
[ 6236.147124][   T73]      __sys_sendmsg+0xcd/0x170
[ 6236.147124][   T73]      do_syscall_64+0xc6/0x1e0
[ 6236.147124][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6236.147124][   T73] 
[ 6236.149255][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6236.149738][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6236.149738][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6236.149738][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6236.149738][   T73]      fib6_nh_init+0xa22/0x1580
[ 6236.149738][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6236.149738][   T73]      ip6_route_add+0x1c/0x140
[ 6236.149738][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6236.149738][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6236.149738][   T73]      netlink_rcv_skb+0x130/0x360
[ 6236.149738][   T73]      netlink_unicast+0x449/0x710
[ 6236.149738][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6236.149738][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6236.149738][   T73]      ___sys_sendmsg+0xee/0x170
[ 6236.149738][   T73]      __sys_sendmsg+0xcd/0x170
[ 6236.149738][   T73]      do_syscall_64+0xc6/0x1e0
[ 6236.149738][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6236.149738][   T73] 
[ 6236.153562][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6236.153562][   T73]      dst_init+0x84/0x4a0
[ 6236.153562][   T73]      dst_alloc+0x97/0x150
[ 6236.153562][   T73]      ip6_dst_alloc+0x23/0x90
[ 6236.153562][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6236.153562][   T73]      ip6_pol_route+0x56f/0x840
[ 6236.153562][   T73]      fib6_rule_lookup+0x456/0x630
[ 6236.153562][   T73]      ip6_route_input+0x59c/0xa50
[ 6236.153562][   T73]      ipv6_rcv+0x397/0x810
[ 6236.153562][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6236.153562][   T73]      process_backlog+0x101/0x620
[ 6236.153562][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6236.153562][   T73]      net_rx_action+0x495/0xbe0
[ 6236.153562][   T73]      __do_softirq+0x1b5/0x7f6
[ 6236.153562][   T73] 
[ 6236.156674][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6236.156674][   T73]      netdev_get_by_index+0x5e/0x80
[ 6236.156674][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6236.156674][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6236.156674][   T73]      ip6_route_add+0x1c/0x140
[ 6236.156674][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6236.156674][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6236.156674][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6236.156674][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6236.156674][   T73]      netlink_rcv_skb+0x130/0x360
[ 6236.156674][   T73]      netlink_unicast+0x449/0x710
[ 6236.156674][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6236.156674][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6236.156674][   T73]      ___sys_sendmsg+0xee/0x170
[ 6236.156674][   T73]      __sys_sendmsg+0xcd/0x170
[ 6236.156674][   T73]      do_syscall_64+0xc6/0x1e0
[ 6236.156674][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6236.156674][   T73] 
[ 6236.160808][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6236.160808][   T73]      netdev_get_by_index+0x5e/0x80
[ 6236.160808][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6236.160808][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6236.160808][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6236.160808][   T73]      ipv6_add_addr+0x411/0x2000
[ 6236.160808][   T73]      inet6_addr_add+0x30e/0xa40
[ 6236.160808][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6236.160808][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6236.160808][   T73]      netlink_rcv_skb+0x130/0x360
[ 6236.160808][   T73]      netlink_unicast+0x449/0x710
[ 6236.160808][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6236.160808][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6236.160808][   T73]      ___sys_sendmsg+0xee/0x170
[ 6236.160808][   T73]      __sys_sendmsg+0xcd/0x170
[ 6236.160808][   T73]      do_syscall_64+0xc6/0x1e0
[ 6236.160808][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6236.160808][   T73] 
[ 6236.164545][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6236.164545][   T73]      netdev_get_by_index+0x5e/0x80
[ 6236.164545][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6236.164545][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6236.164545][   T73]      ip6_route_add+0x1c/0x140
[ 6236.164545][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6236.164545][   T73]      addrconf_add_dev+0xe2/0x170
[ 6236.164545][   T73]      inet6_addr_add+0x12f/0xa40
[ 6236.164545][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6236.164545][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6236.164545][   T73]      netlink_rcv_skb+0x130/0x360
[ 6236.164545][   T73]      netlink_unicast+0x449/0x710
[ 6236.164545][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6236.164545][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6236.164545][   T73]      ___sys_sendmsg+0xee/0x170
[ 6236.164545][   T73]      __sys_sendmsg+0xcd/0x170
[ 6236.164545][   T73]      do_syscall_64+0xc6/0x1e0
[ 6236.164545][   T73] 
[ 6236.168357][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6236.168357][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6236.168357][   T73]      ipv6_find_idev+0x102/0x170
[ 6236.168357][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6236.168357][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6236.168357][   T73]      netlink_rcv_skb+0x130/0x360
[ 6236.168357][   T73]      netlink_unicast+0x449/0x710
[ 6236.168357][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6236.168357][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6236.168357][   T73]      ___sys_sendmsg+0xee/0x170
[ 6236.168357][   T73]      __sys_sendmsg+0xcd/0x170
[ 6236.168357][   T73]      do_syscall_64+0xc6/0x1e0
[ 6236.168357][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6236.168357][   T73] 
[ 6236.171543][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6236.171543][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6236.171543][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6236.171543][   T73]      ipv6_find_idev+0x102/0x170
[ 6236.171543][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6236.171543][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6236.171543][   T73]      netlink_rcv_skb+0x130/0x360
[ 6236.171543][   T73]      netlink_unicast+0x449/0x710
[ 6236.171543][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6236.171543][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6236.171543][   T73]      ___sys_sendmsg+0xee/0x170
[ 6236.171543][   T73]      __sys_sendmsg+0xcd/0x170
[ 6236.171543][   T73]      do_syscall_64+0xc6/0x1e0
[ 6236.171543][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6236.171543][   T73] 
[ 6236.174597][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6236.175309][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6236.175309][   T73]      netdev_get_by_index+0x5e/0x80
[ 6236.175309][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6236.175309][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6236.175309][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6236.175309][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6236.175309][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6236.175309][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6236.175309][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6236.175309][   T73]      addrconf_dad_begin+0x310/0x670
[ 6236.175309][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6236.175309][   T73]      process_one_work+0x84d/0x18a0
[ 6236.175309][   T73]      worker_thread+0x587/0xd30
[ 6236.175309][   T73]      kthread+0x28a/0x350
[ 6236.175309][   T73]      ret_from_fork+0x31/0x70
[ 6236.175309][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6236.175309][   T73] 
[ 6236.179071][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6236.179071][   T73]      netdev_get_by_index+0x5e/0x80
[ 6236.179071][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6236.179071][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6236.179071][   T73]      ip6_route_add+0x1c/0x140
[ 6236.179071][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6236.179071][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6236.179071][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6236.179071][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6236.179071][   T73]      netlink_rcv_skb+0x130/0x360
[ 6236.179071][   T73]      netlink_unicast+0x449/0x710
[ 6236.179071][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6236.179071][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6236.179071][   T73]      ___sys_sendmsg+0xee/0x170
[ 6236.179071][   T73]      __sys_sendmsg+0xcd/0x170
[ 6236.179071][   T73]      do_syscall_64+0xc6/0x1e0
[ 6236.179071][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6236.179071][   T73] 
[ 6236.182727][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6236.182727][   T73]      netdev_get_by_index+0x5e/0x80
[ 6236.182727][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6236.182727][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6236.182727][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6236.182727][   T73]      ipv6_add_addr+0x411/0x2000
[ 6236.182727][   T73]      inet6_addr_add+0x30e/0xa40
[ 6236.182727][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6236.182727][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6236.182727][   T73]      netlink_rcv_skb+0x130/0x360
[ 6236.182727][   T73]      netlink_unicast+0x449/0x710
[ 6236.182727][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6236.182727][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6236.182727][   T73]      ___sys_sendmsg+0xee/0x170
[ 6236.182727][   T73]      __sys_sendmsg+0xcd/0x170
[ 6236.182727][   T73]      do_syscall_64+0xc6/0x1e0
[ 6236.182727][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6236.182727][   T73] 
[ 6236.186823][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6236.186823][   T73]      netdev_get_by_index+0x5e/0x80
[ 6236.186823][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6236.186823][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6236.186823][   T73]      ip6_route_add+0x1c/0x140
[ 6236.186823][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6236.186823][   T73]      addrconf_add_dev+0xe2/0x170
[ 6236.186823][   T73]      inet6_addr_add+0x12f/0xa40
[ 6236.186823][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6236.186823][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6236.186823][   T73]      netlink_rcv_skb+0x130/0x360
[ 6236.186823][   T73]      netlink_unicast+0x449/0x710
[ 6236.186823][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6236.186823][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6236.186823][   T73]      ___sys_sendmsg+0xee/0x170
[ 6236.186823][   T73]      __sys_sendmsg+0xcd/0x170
[ 6236.186823][   T73]      do_syscall_64+0xc6/0x1e0
[ 6236.186823][   T73] 
[ 6236.190492][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6236.190492][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6236.190492][   T73]      ipv6_find_idev+0x102/0x170
[ 6236.190492][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6236.190492][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6236.190492][   T73]      netlink_rcv_skb+0x130/0x360
[ 6236.190492][   T73]      netlink_unicast+0x449/0x710
[ 6236.190492][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6236.190492][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6236.190492][   T73]      ___sys_sendmsg+0xee/0x170
[ 6236.190492][   T73]      __sys_sendmsg+0xcd/0x170
[ 6236.190492][   T73]      do_syscall_64+0xc6/0x1e0
[ 6236.190492][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6236.190492][   T73] 
[ 6236.193626][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6236.193626][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6236.193626][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6236.193626][   T73]      ipv6_find_idev+0x102/0x170
[ 6236.193626][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6236.193626][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6236.193626][   T73]      netlink_rcv_skb+0x130/0x360
[ 6236.193626][   T73]      netlink_unicast+0x449/0x710
[ 6236.193626][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6236.193626][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6236.193626][   T73]      ___sys_sendmsg+0xee/0x170
[ 6236.193626][   T73]      __sys_sendmsg+0xcd/0x170
[ 6236.193626][   T73]      do_syscall_64+0xc6/0x1e0
[ 6236.193626][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6236.193626][   T73] 
[ 6246.439792][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6246.440298][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6246.440298][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6246.440298][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6246.440298][   T73]      fib6_nh_init+0xa22/0x1580
[ 6246.440298][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6246.440298][   T73]      ip6_route_add+0x1c/0x140
[ 6246.440298][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6246.440298][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6246.440298][   T73]      netlink_rcv_skb+0x130/0x360
[ 6246.440298][   T73]      netlink_unicast+0x449/0x710
[ 6246.440298][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6246.440298][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6246.440298][   T73]      ___sys_sendmsg+0xee/0x170
[ 6246.440298][   T73]      __sys_sendmsg+0xcd/0x170
[ 6246.440298][   T73]      do_syscall_64+0xc6/0x1e0
[ 6246.440298][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6246.440298][   T73] 
[ 6246.442444][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6246.442444][   T73]      dst_init+0x84/0x4a0
[ 6246.442444][   T73]      dst_alloc+0x97/0x150
[ 6246.442444][   T73]      ip6_dst_alloc+0x23/0x90
[ 6246.442444][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6246.442444][   T73]      ip6_pol_route+0x56f/0x840
[ 6246.442444][   T73]      fib6_rule_lookup+0x456/0x630
[ 6246.442444][   T73]      ip6_route_input+0x59c/0xa50
[ 6246.442444][   T73]      ipv6_rcv+0x397/0x810
[ 6246.442444][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6246.442444][   T73]      process_backlog+0x101/0x620
[ 6246.442444][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6246.442444][   T73]      net_rx_action+0x495/0xbe0
[ 6246.442444][   T73]      __do_softirq+0x1b5/0x7f6
[ 6246.442444][   T73] 
[ 6246.444308][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6246.444308][   T73]      netdev_get_by_index+0x5e/0x80
[ 6246.444308][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6246.444308][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6246.444308][   T73]      ip6_route_add+0x1c/0x140
[ 6246.444308][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6246.444308][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6246.444308][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6246.444308][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6246.444308][   T73]      netlink_rcv_skb+0x130/0x360
[ 6246.444308][   T73]      netlink_unicast+0x449/0x710
[ 6246.444308][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6246.444308][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6246.444308][   T73]      ___sys_sendmsg+0xee/0x170
[ 6246.444308][   T73]      __sys_sendmsg+0xcd/0x170
[ 6246.444308][   T73]      do_syscall_64+0xc6/0x1e0
[ 6246.444308][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6246.444308][   T73] 
[ 6246.446567][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6246.446567][   T73]      netdev_get_by_index+0x5e/0x80
[ 6246.446567][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6246.446567][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6246.446567][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6246.446567][   T73]      ipv6_add_addr+0x411/0x2000
[ 6246.446567][   T73]      inet6_addr_add+0x30e/0xa40
[ 6246.446567][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6246.446567][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6246.446567][   T73]      netlink_rcv_skb+0x130/0x360
[ 6246.446567][   T73]      netlink_unicast+0x449/0x710
[ 6246.446567][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6246.446567][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6246.446567][   T73]      ___sys_sendmsg+0xee/0x170
[ 6246.446567][   T73]      __sys_sendmsg+0xcd/0x170
[ 6246.446567][   T73]      do_syscall_64+0xc6/0x1e0
[ 6246.446567][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6246.446567][   T73] 
[ 6246.448819][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6246.448819][   T73]      netdev_get_by_index+0x5e/0x80
[ 6246.448819][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6246.448819][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6246.448819][   T73]      ip6_route_add+0x1c/0x140
[ 6246.448819][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6246.448819][   T73]      addrconf_add_dev+0xe2/0x170
[ 6246.448819][   T73]      inet6_addr_add+0x12f/0xa40
[ 6246.448819][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6246.448819][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6246.448819][   T73]      netlink_rcv_skb+0x130/0x360
[ 6246.448819][   T73]      netlink_unicast+0x449/0x710
[ 6246.448819][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6246.448819][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6246.448819][   T73]      ___sys_sendmsg+0xee/0x170
[ 6246.448819][   T73]      __sys_sendmsg+0xcd/0x170
[ 6246.448819][   T73]      do_syscall_64+0xc6/0x1e0
[ 6246.448819][   T73] 
[ 6246.451025][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6246.451025][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6246.451025][   T73]      ipv6_find_idev+0x102/0x170
[ 6246.451025][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6246.451025][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6246.451025][   T73]      netlink_rcv_skb+0x130/0x360
[ 6246.451025][   T73]      netlink_unicast+0x449/0x710
[ 6246.451025][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6246.451025][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6246.451025][   T73]      ___sys_sendmsg+0xee/0x170
[ 6246.451025][   T73]      __sys_sendmsg+0xcd/0x170
[ 6246.451025][   T73]      do_syscall_64+0xc6/0x1e0
[ 6246.451025][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6246.451025][   T73] 
[ 6246.452784][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6246.452784][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6246.452784][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6246.452784][   T73]      ipv6_find_idev+0x102/0x170
[ 6246.452784][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6246.452784][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6246.452784][   T73]      netlink_rcv_skb+0x130/0x360
[ 6246.452784][   T73]      netlink_unicast+0x449/0x710
[ 6246.452784][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6246.452784][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6246.452784][   T73]      ___sys_sendmsg+0xee/0x170
[ 6246.452784][   T73]      __sys_sendmsg+0xcd/0x170
[ 6246.452784][   T73]      do_syscall_64+0xc6/0x1e0
[ 6246.452784][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6246.452784][   T73] 
[ 6246.454691][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6246.455017][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6246.455017][   T73]      netdev_get_by_index+0x5e/0x80
[ 6246.455017][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6246.455017][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6246.455017][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6246.455017][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6246.455017][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6246.455017][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6246.455017][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6246.455017][   T73]      addrconf_dad_begin+0x310/0x670
[ 6246.455017][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6246.455017][   T73]      process_one_work+0x84d/0x18a0
[ 6246.455017][   T73]      worker_thread+0x587/0xd30
[ 6246.455017][   T73]      kthread+0x28a/0x350
[ 6246.455017][   T73]      ret_from_fork+0x31/0x70
[ 6246.455017][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6246.455017][   T73] 
[ 6246.457176][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6246.457176][   T73]      netdev_get_by_index+0x5e/0x80
[ 6246.457176][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6246.457176][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6246.457176][   T73]      ip6_route_add+0x1c/0x140
[ 6246.457176][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6246.457176][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6246.457176][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6246.457176][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6246.457176][   T73]      netlink_rcv_skb+0x130/0x360
[ 6246.457176][   T73]      netlink_unicast+0x449/0x710
[ 6246.457176][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6246.457176][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6246.457176][   T73]      ___sys_sendmsg+0xee/0x170
[ 6246.457176][   T73]      __sys_sendmsg+0xcd/0x170
[ 6246.457176][   T73]      do_syscall_64+0xc6/0x1e0
[ 6246.457176][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6246.457176][   T73] 
[ 6246.459430][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6246.459430][   T73]      netdev_get_by_index+0x5e/0x80
[ 6246.459430][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6246.459430][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6246.459430][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6246.459430][   T73]      ipv6_add_addr+0x411/0x2000
[ 6246.459430][   T73]      inet6_addr_add+0x30e/0xa40
[ 6246.459430][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6246.459430][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6246.459430][   T73]      netlink_rcv_skb+0x130/0x360
[ 6246.459430][   T73]      netlink_unicast+0x449/0x710
[ 6246.459430][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6246.459430][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6246.459430][   T73]      ___sys_sendmsg+0xee/0x170
[ 6246.459430][   T73]      __sys_sendmsg+0xcd/0x170
[ 6246.459430][   T73]      do_syscall_64+0xc6/0x1e0
[ 6246.459430][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6246.459430][   T73] 
[ 6246.461779][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6246.461779][   T73]      netdev_get_by_index+0x5e/0x80
[ 6246.461779][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6246.461779][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6246.461779][   T73]      ip6_route_add+0x1c/0x140
[ 6246.461779][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6246.461779][   T73]      addrconf_add_dev+0xe2/0x170
[ 6246.461779][   T73]      inet6_addr_add+0x12f/0xa40
[ 6246.461779][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6246.461779][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6246.461779][   T73]      netlink_rcv_skb+0x130/0x360
[ 6246.461779][   T73]      netlink_unicast+0x449/0x710
[ 6246.461779][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6246.461779][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6246.461779][   T73]      ___sys_sendmsg+0xee/0x170
[ 6246.461779][   T73]      __sys_sendmsg+0xcd/0x170
[ 6246.461779][   T73]      do_syscall_64+0xc6/0x1e0
[ 6246.461779][   T73] 
[ 6246.463976][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6246.463976][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6246.463976][   T73]      ipv6_find_idev+0x102/0x170
[ 6246.463976][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6246.463976][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6246.463976][   T73]      netlink_rcv_skb+0x130/0x360
[ 6246.463976][   T73]      netlink_unicast+0x449/0x710
[ 6246.463976][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6246.463976][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6246.463976][   T73]      ___sys_sendmsg+0xee/0x170
[ 6246.463976][   T73]      __sys_sendmsg+0xcd/0x170
[ 6246.463976][   T73]      do_syscall_64+0xc6/0x1e0
[ 6246.463976][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6246.463976][   T73] 
[ 6246.465719][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6246.465719][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6246.465719][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6246.465719][   T73]      ipv6_find_idev+0x102/0x170
[ 6246.465719][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6246.465719][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6246.465719][   T73]      netlink_rcv_skb+0x130/0x360
[ 6246.465719][   T73]      netlink_unicast+0x449/0x710
[ 6246.465719][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6246.465719][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6246.465719][   T73]      ___sys_sendmsg+0xee/0x170
[ 6246.465719][   T73]      __sys_sendmsg+0xcd/0x170
[ 6246.465719][   T73]      do_syscall_64+0xc6/0x1e0
[ 6246.465719][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6246.465719][   T73] 
[ 6246.467606][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6246.467921][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6246.467921][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6246.467921][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6246.467921][   T73]      fib6_nh_init+0xa22/0x1580
[ 6246.467921][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6246.467921][   T73]      ip6_route_add+0x1c/0x140
[ 6246.467921][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6246.467921][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6246.467921][   T73]      netlink_rcv_skb+0x130/0x360
[ 6246.467921][   T73]      netlink_unicast+0x449/0x710
[ 6246.467921][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6246.467921][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6246.467921][   T73]      ___sys_sendmsg+0xee/0x170
[ 6246.467921][   T73]      __sys_sendmsg+0xcd/0x170
[ 6246.467921][   T73]      do_syscall_64+0xc6/0x1e0
[ 6246.467921][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6246.467921][   T73] 
[ 6246.470209][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6246.470209][   T73]      dst_init+0x84/0x4a0
[ 6246.470209][   T73]      dst_alloc+0x97/0x150
[ 6246.470209][   T73]      ip6_dst_alloc+0x23/0x90
[ 6246.470209][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6246.470209][   T73]      ip6_pol_route+0x56f/0x840
[ 6246.470209][   T73]      fib6_rule_lookup+0x456/0x630
[ 6246.470209][   T73]      ip6_route_input+0x59c/0xa50
[ 6246.470209][   T73]      ipv6_rcv+0x397/0x810
[ 6246.470209][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6246.470209][   T73]      process_backlog+0x101/0x620
[ 6246.470209][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6246.470209][   T73]      net_rx_action+0x495/0xbe0
[ 6246.470209][   T73]      __do_softirq+0x1b5/0x7f6
[ 6246.470209][   T73] 
[ 6246.472260][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6246.472260][   T73]      netdev_get_by_index+0x5e/0x80
[ 6246.472260][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6246.472260][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6246.472260][   T73]      ip6_route_add+0x1c/0x140
[ 6246.472260][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6246.472260][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6246.472260][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6246.472260][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6246.472260][   T73]      netlink_rcv_skb+0x130/0x360
[ 6246.472260][   T73]      netlink_unicast+0x449/0x710
[ 6246.472260][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6246.472260][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6246.472260][   T73]      ___sys_sendmsg+0xee/0x170
[ 6246.472260][   T73]      __sys_sendmsg+0xcd/0x170
[ 6246.472260][   T73]      do_syscall_64+0xc6/0x1e0
[ 6246.472260][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6246.472260][   T73] 
[ 6246.474750][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6246.474750][   T73]      netdev_get_by_index+0x5e/0x80
[ 6246.474750][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6246.474750][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6246.474750][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6246.474750][   T73]      ipv6_add_addr+0x411/0x2000
[ 6246.474750][   T73]      inet6_addr_add+0x30e/0xa40
[ 6246.474750][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6246.474750][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6246.474750][   T73]      netlink_rcv_skb+0x130/0x360
[ 6246.474750][   T73]      netlink_unicast+0x449/0x710
[ 6246.474750][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6246.474750][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6246.474750][   T73]      ___sys_sendmsg+0xee/0x170
[ 6246.474750][   T73]      __sys_sendmsg+0xcd/0x170
[ 6246.474750][   T73]      do_syscall_64+0xc6/0x1e0
[ 6246.474750][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6246.474750][   T73] 
[ 6246.477256][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6246.477256][   T73]      netdev_get_by_index+0x5e/0x80
[ 6246.477256][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6246.477256][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6246.477256][   T73]      ip6_route_add+0x1c/0x140
[ 6246.477256][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6246.477256][   T73]      addrconf_add_dev+0xe2/0x170
[ 6246.477256][   T73]      inet6_addr_add+0x12f/0xa40
[ 6246.477256][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6246.477256][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6246.477256][   T73]      netlink_rcv_skb+0x130/0x360
[ 6246.477256][   T73]      netlink_unicast+0x449/0x710
[ 6246.477256][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6246.477256][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6246.477256][   T73]      ___sys_sendmsg+0xee/0x170
[ 6246.477256][   T73]      __sys_sendmsg+0xcd/0x170
[ 6246.477256][   T73]      do_syscall_64+0xc6/0x1e0
[ 6246.477256][   T73] 
[ 6246.479705][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6246.479705][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6246.479705][   T73]      ipv6_find_idev+0x102/0x170
[ 6246.479705][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6246.479705][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6246.479705][   T73]      netlink_rcv_skb+0x130/0x360
[ 6246.479705][   T73]      netlink_unicast+0x449/0x710
[ 6246.479705][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6246.479705][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6246.479705][   T73]      ___sys_sendmsg+0xee/0x170
[ 6246.479705][   T73]      __sys_sendmsg+0xcd/0x170
[ 6246.479705][   T73]      do_syscall_64+0xc6/0x1e0
[ 6246.479705][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6246.479705][   T73] 
[ 6246.481613][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6246.481613][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6246.481613][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6246.481613][   T73]      ipv6_find_idev+0x102/0x170
[ 6246.481613][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6246.481613][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6246.481613][   T73]      netlink_rcv_skb+0x130/0x360
[ 6246.481613][   T73]      netlink_unicast+0x449/0x710
[ 6246.481613][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6246.481613][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6246.481613][   T73]      ___sys_sendmsg+0xee/0x170
[ 6246.481613][   T73]      __sys_sendmsg+0xcd/0x170
[ 6246.481613][   T73]      do_syscall_64+0xc6/0x1e0
[ 6246.481613][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6246.481613][   T73] 
[ 6246.483707][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6246.484081][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6246.484081][   T73]      netdev_get_by_index+0x5e/0x80
[ 6246.484081][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6246.484081][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6246.484081][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6246.484081][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6246.484081][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6246.484081][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6246.484081][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6246.484081][   T73]      addrconf_dad_begin+0x310/0x670
[ 6246.484081][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6246.484081][   T73]      process_one_work+0x84d/0x18a0
[ 6246.484081][   T73]      worker_thread+0x587/0xd30
[ 6246.484081][   T73]      kthread+0x28a/0x350
[ 6246.484081][   T73]      ret_from_fork+0x31/0x70
[ 6246.484081][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6246.484081][   T73] 
[ 6246.486626][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6246.486626][   T73]      netdev_get_by_index+0x5e/0x80
[ 6246.486626][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6246.486626][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6246.486626][   T73]      ip6_route_add+0x1c/0x140
[ 6246.486626][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6246.486626][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6246.486626][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6246.486626][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6246.486626][   T73]      netlink_rcv_skb+0x130/0x360
[ 6246.486626][   T73]      netlink_unicast+0x449/0x710
[ 6246.486626][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6246.486626][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6246.486626][   T73]      ___sys_sendmsg+0xee/0x170
[ 6246.486626][   T73]      __sys_sendmsg+0xcd/0x170
[ 6246.486626][   T73]      do_syscall_64+0xc6/0x1e0
[ 6246.486626][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6246.486626][   T73] 
[ 6246.490192][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6246.490192][   T73]      netdev_get_by_index+0x5e/0x80
[ 6246.490192][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6246.490192][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6246.490192][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6246.490192][   T73]      ipv6_add_addr+0x411/0x2000
[ 6246.490192][   T73]      inet6_addr_add+0x30e/0xa40
[ 6246.490192][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6246.490192][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6246.490192][   T73]      netlink_rcv_skb+0x130/0x360
[ 6246.490192][   T73]      netlink_unicast+0x449/0x710
[ 6246.490192][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6246.490192][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6246.490192][   T73]      ___sys_sendmsg+0xee/0x170
[ 6246.490192][   T73]      __sys_sendmsg+0xcd/0x170
[ 6246.490192][   T73]      do_syscall_64+0xc6/0x1e0
[ 6246.490192][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6246.490192][   T73] 
[ 6246.492685][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6246.492685][   T73]      netdev_get_by_index+0x5e/0x80
[ 6246.492685][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6246.492685][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6246.492685][   T73]      ip6_route_add+0x1c/0x140
[ 6246.492685][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6246.492685][   T73]      addrconf_add_dev+0xe2/0x170
[ 6246.492685][   T73]      inet6_addr_add+0x12f/0xa40
[ 6246.492685][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6246.492685][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6246.492685][   T73]      netlink_rcv_skb+0x130/0x360
[ 6246.492685][   T73]      netlink_unicast+0x449/0x710
[ 6246.492685][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6246.492685][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6246.492685][   T73]      ___sys_sendmsg+0xee/0x170
[ 6246.492685][   T73]      __sys_sendmsg+0xcd/0x170
[ 6246.492685][   T73]      do_syscall_64+0xc6/0x1e0
[ 6246.492685][   T73] 
[ 6246.495151][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6246.495151][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6246.495151][   T73]      ipv6_find_idev+0x102/0x170
[ 6246.495151][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6246.495151][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6246.495151][   T73]      netlink_rcv_skb+0x130/0x360
[ 6246.495151][   T73]      netlink_unicast+0x449/0x710
[ 6246.495151][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6246.495151][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6246.495151][   T73]      ___sys_sendmsg+0xee/0x170
[ 6246.495151][   T73]      __sys_sendmsg+0xcd/0x170
[ 6246.495151][   T73]      do_syscall_64+0xc6/0x1e0
[ 6246.495151][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6246.495151][   T73] 
[ 6246.497058][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6246.497058][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6246.497058][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6246.497058][   T73]      ipv6_find_idev+0x102/0x170
[ 6246.497058][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6246.497058][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6246.497058][   T73]      netlink_rcv_skb+0x130/0x360
[ 6246.497058][   T73]      netlink_unicast+0x449/0x710
[ 6246.497058][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6246.497058][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6246.497058][   T73]      ___sys_sendmsg+0xee/0x170
[ 6246.497058][   T73]      __sys_sendmsg+0xcd/0x170
[ 6246.497058][   T73]      do_syscall_64+0xc6/0x1e0
[ 6246.497058][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6246.497058][   T73] 
[ 6256.735743][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6256.736230][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6256.736230][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6256.736230][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6256.736230][   T73]      fib6_nh_init+0xa22/0x1580
[ 6256.736230][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6256.736230][   T73]      ip6_route_add+0x1c/0x140
[ 6256.736230][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6256.736230][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6256.736230][   T73]      netlink_rcv_skb+0x130/0x360
[ 6256.736230][   T73]      netlink_unicast+0x449/0x710
[ 6256.736230][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6256.736230][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6256.736230][   T73]      ___sys_sendmsg+0xee/0x170
[ 6256.736230][   T73]      __sys_sendmsg+0xcd/0x170
[ 6256.736230][   T73]      do_syscall_64+0xc6/0x1e0
[ 6256.736230][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6256.736230][   T73] 
[ 6256.738204][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6256.738204][   T73]      dst_init+0x84/0x4a0
[ 6256.738204][   T73]      dst_alloc+0x97/0x150
[ 6256.738204][   T73]      ip6_dst_alloc+0x23/0x90
[ 6256.738204][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6256.738204][   T73]      ip6_pol_route+0x56f/0x840
[ 6256.738204][   T73]      fib6_rule_lookup+0x456/0x630
[ 6256.738204][   T73]      ip6_route_input+0x59c/0xa50
[ 6256.738204][   T73]      ipv6_rcv+0x397/0x810
[ 6256.738204][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6256.738204][   T73]      process_backlog+0x101/0x620
[ 6256.738204][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6256.738204][   T73]      net_rx_action+0x495/0xbe0
[ 6256.738204][   T73]      __do_softirq+0x1b5/0x7f6
[ 6256.738204][   T73] 
[ 6256.739888][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6256.739888][   T73]      netdev_get_by_index+0x5e/0x80
[ 6256.739888][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6256.739888][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6256.739888][   T73]      ip6_route_add+0x1c/0x140
[ 6256.739888][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6256.739888][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6256.739888][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6256.739888][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6256.739888][   T73]      netlink_rcv_skb+0x130/0x360
[ 6256.739888][   T73]      netlink_unicast+0x449/0x710
[ 6256.739888][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6256.739888][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6256.739888][   T73]      ___sys_sendmsg+0xee/0x170
[ 6256.739888][   T73]      __sys_sendmsg+0xcd/0x170
[ 6256.739888][   T73]      do_syscall_64+0xc6/0x1e0
[ 6256.739888][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6256.739888][   T73] 
[ 6256.741920][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6256.741920][   T73]      netdev_get_by_index+0x5e/0x80
[ 6256.741920][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6256.741920][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6256.741920][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6256.741920][   T73]      ipv6_add_addr+0x411/0x2000
[ 6256.741920][   T73]      inet6_addr_add+0x30e/0xa40
[ 6256.741920][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6256.741920][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6256.741920][   T73]      netlink_rcv_skb+0x130/0x360
[ 6256.741920][   T73]      netlink_unicast+0x449/0x710
[ 6256.741920][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6256.741920][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6256.741920][   T73]      ___sys_sendmsg+0xee/0x170
[ 6256.741920][   T73]      __sys_sendmsg+0xcd/0x170
[ 6256.741920][   T73]      do_syscall_64+0xc6/0x1e0
[ 6256.741920][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6256.741920][   T73] 
[ 6256.743964][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6256.743964][   T73]      netdev_get_by_index+0x5e/0x80
[ 6256.743964][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6256.743964][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6256.743964][   T73]      ip6_route_add+0x1c/0x140
[ 6256.743964][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6256.743964][   T73]      addrconf_add_dev+0xe2/0x170
[ 6256.743964][   T73]      inet6_addr_add+0x12f/0xa40
[ 6256.743964][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6256.743964][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6256.743964][   T73]      netlink_rcv_skb+0x130/0x360
[ 6256.743964][   T73]      netlink_unicast+0x449/0x710
[ 6256.743964][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6256.743964][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6256.743964][   T73]      ___sys_sendmsg+0xee/0x170
[ 6256.743964][   T73]      __sys_sendmsg+0xcd/0x170
[ 6256.743964][   T73]      do_syscall_64+0xc6/0x1e0
[ 6256.743964][   T73] 
[ 6256.745983][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6256.745983][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6256.745983][   T73]      ipv6_find_idev+0x102/0x170
[ 6256.745983][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6256.745983][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6256.745983][   T73]      netlink_rcv_skb+0x130/0x360
[ 6256.745983][   T73]      netlink_unicast+0x449/0x710
[ 6256.745983][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6256.745983][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6256.745983][   T73]      ___sys_sendmsg+0xee/0x170
[ 6256.745983][   T73]      __sys_sendmsg+0xcd/0x170
[ 6256.745983][   T73]      do_syscall_64+0xc6/0x1e0
[ 6256.745983][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6256.745983][   T73] 
[ 6256.747557][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6256.747557][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6256.747557][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6256.747557][   T73]      ipv6_find_idev+0x102/0x170
[ 6256.747557][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6256.747557][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6256.747557][   T73]      netlink_rcv_skb+0x130/0x360
[ 6256.747557][   T73]      netlink_unicast+0x449/0x710
[ 6256.747557][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6256.747557][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6256.747557][   T73]      ___sys_sendmsg+0xee/0x170
[ 6256.747557][   T73]      __sys_sendmsg+0xcd/0x170
[ 6256.747557][   T73]      do_syscall_64+0xc6/0x1e0
[ 6256.747557][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6256.747557][   T73] 
[ 6256.749285][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6256.749570][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6256.749570][   T73]      netdev_get_by_index+0x5e/0x80
[ 6256.749570][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6256.749570][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6256.749570][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6256.749570][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6256.749570][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6256.749570][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6256.749570][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6256.749570][   T73]      addrconf_dad_begin+0x310/0x670
[ 6256.749570][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6256.749570][   T73]      process_one_work+0x84d/0x18a0
[ 6256.749570][   T73]      worker_thread+0x587/0xd30
[ 6256.749570][   T73]      kthread+0x28a/0x350
[ 6256.749570][   T73]      ret_from_fork+0x31/0x70
[ 6256.749570][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6256.749570][   T73] 
[ 6256.751529][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6256.751529][   T73]      netdev_get_by_index+0x5e/0x80
[ 6256.751529][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6256.751529][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6256.751529][   T73]      ip6_route_add+0x1c/0x140
[ 6256.751529][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6256.751529][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6256.751529][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6256.751529][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6256.751529][   T73]      netlink_rcv_skb+0x130/0x360
[ 6256.751529][   T73]      netlink_unicast+0x449/0x710
[ 6256.751529][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6256.751529][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6256.751529][   T73]      ___sys_sendmsg+0xee/0x170
[ 6256.751529][   T73]      __sys_sendmsg+0xcd/0x170
[ 6256.751529][   T73]      do_syscall_64+0xc6/0x1e0
[ 6256.751529][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6256.751529][   T73] 
[ 6256.753561][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6256.753561][   T73]      netdev_get_by_index+0x5e/0x80
[ 6256.753561][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6256.753561][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6256.753561][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6256.753561][   T73]      ipv6_add_addr+0x411/0x2000
[ 6256.753561][   T73]      inet6_addr_add+0x30e/0xa40
[ 6256.753561][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6256.753561][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6256.753561][   T73]      netlink_rcv_skb+0x130/0x360
[ 6256.753561][   T73]      netlink_unicast+0x449/0x710
[ 6256.753561][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6256.753561][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6256.753561][   T73]      ___sys_sendmsg+0xee/0x170
[ 6256.753561][   T73]      __sys_sendmsg+0xcd/0x170
[ 6256.753561][   T73]      do_syscall_64+0xc6/0x1e0
[ 6256.753561][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6256.753561][   T73] 
[ 6256.755614][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6256.755614][   T73]      netdev_get_by_index+0x5e/0x80
[ 6256.755614][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6256.755614][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6256.755614][   T73]      ip6_route_add+0x1c/0x140
[ 6256.755614][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6256.755614][   T73]      addrconf_add_dev+0xe2/0x170
[ 6256.755614][   T73]      inet6_addr_add+0x12f/0xa40
[ 6256.755614][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6256.755614][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6256.755614][   T73]      netlink_rcv_skb+0x130/0x360
[ 6256.755614][   T73]      netlink_unicast+0x449/0x710
[ 6256.755614][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6256.755614][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6256.755614][   T73]      ___sys_sendmsg+0xee/0x170
[ 6256.755614][   T73]      __sys_sendmsg+0xcd/0x170
[ 6256.755614][   T73]      do_syscall_64+0xc6/0x1e0
[ 6256.755614][   T73] 
[ 6256.757603][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6256.757603][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6256.757603][   T73]      ipv6_find_idev+0x102/0x170
[ 6256.757603][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6256.757603][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6256.757603][   T73]      netlink_rcv_skb+0x130/0x360
[ 6256.757603][   T73]      netlink_unicast+0x449/0x710
[ 6256.757603][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6256.757603][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6256.757603][   T73]      ___sys_sendmsg+0xee/0x170
[ 6256.757603][   T73]      __sys_sendmsg+0xcd/0x170
[ 6256.757603][   T73]      do_syscall_64+0xc6/0x1e0
[ 6256.757603][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6256.757603][   T73] 
[ 6256.759180][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6256.759180][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6256.759180][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6256.759180][   T73]      ipv6_find_idev+0x102/0x170
[ 6256.759180][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6256.759180][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6256.759180][   T73]      netlink_rcv_skb+0x130/0x360
[ 6256.759180][   T73]      netlink_unicast+0x449/0x710
[ 6256.759180][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6256.759180][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6256.759180][   T73]      ___sys_sendmsg+0xee/0x170
[ 6256.759180][   T73]      __sys_sendmsg+0xcd/0x170
[ 6256.759180][   T73]      do_syscall_64+0xc6/0x1e0
[ 6256.759180][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6256.759180][   T73] 
[ 6256.760903][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6256.761185][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6256.761185][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6256.761185][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6256.761185][   T73]      fib6_nh_init+0xa22/0x1580
[ 6256.761185][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6256.761185][   T73]      ip6_route_add+0x1c/0x140
[ 6256.761185][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6256.761185][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6256.761185][   T73]      netlink_rcv_skb+0x130/0x360
[ 6256.761185][   T73]      netlink_unicast+0x449/0x710
[ 6256.761185][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6256.761185][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6256.761185][   T73]      ___sys_sendmsg+0xee/0x170
[ 6256.761185][   T73]      __sys_sendmsg+0xcd/0x170
[ 6256.761185][   T73]      do_syscall_64+0xc6/0x1e0
[ 6256.761185][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6256.761185][   T73] 
[ 6256.763167][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6256.763167][   T73]      dst_init+0x84/0x4a0
[ 6256.763167][   T73]      dst_alloc+0x97/0x150
[ 6256.763167][   T73]      ip6_dst_alloc+0x23/0x90
[ 6256.763167][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6256.763167][   T73]      ip6_pol_route+0x56f/0x840
[ 6256.763167][   T73]      fib6_rule_lookup+0x456/0x630
[ 6256.763167][   T73]      ip6_route_input+0x59c/0xa50
[ 6256.763167][   T73]      ipv6_rcv+0x397/0x810
[ 6256.763167][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6256.763167][   T73]      process_backlog+0x101/0x620
[ 6256.763167][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6256.763167][   T73]      net_rx_action+0x495/0xbe0
[ 6256.763167][   T73]      __do_softirq+0x1b5/0x7f6
[ 6256.763167][   T73] 
[ 6256.764921][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6256.764921][   T73]      netdev_get_by_index+0x5e/0x80
[ 6256.764921][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6256.764921][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6256.764921][   T73]      ip6_route_add+0x1c/0x140
[ 6256.764921][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6256.764921][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6256.764921][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6256.764921][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6256.764921][   T73]      netlink_rcv_skb+0x130/0x360
[ 6256.764921][   T73]      netlink_unicast+0x449/0x710
[ 6256.764921][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6256.764921][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6256.764921][   T73]      ___sys_sendmsg+0xee/0x170
[ 6256.764921][   T73]      __sys_sendmsg+0xcd/0x170
[ 6256.764921][   T73]      do_syscall_64+0xc6/0x1e0
[ 6256.764921][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6256.764921][   T73] 
[ 6256.767124][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6256.767124][   T73]      netdev_get_by_index+0x5e/0x80
[ 6256.767124][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6256.767124][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6256.767124][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6256.767124][   T73]      ipv6_add_addr+0x411/0x2000
[ 6256.767124][   T73]      inet6_addr_add+0x30e/0xa40
[ 6256.767124][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6256.767124][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6256.767124][   T73]      netlink_rcv_skb+0x130/0x360
[ 6256.767124][   T73]      netlink_unicast+0x449/0x710
[ 6256.767124][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6256.767124][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6256.767124][   T73]      ___sys_sendmsg+0xee/0x170
[ 6256.767124][   T73]      __sys_sendmsg+0xcd/0x170
[ 6256.767124][   T73]      do_syscall_64+0xc6/0x1e0
[ 6256.767124][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6256.767124][   T73] 
[ 6256.769243][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6256.769243][   T73]      netdev_get_by_index+0x5e/0x80
[ 6256.769243][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6256.769243][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6256.769243][   T73]      ip6_route_add+0x1c/0x140
[ 6256.769243][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6256.769243][   T73]      addrconf_add_dev+0xe2/0x170
[ 6256.769243][   T73]      inet6_addr_add+0x12f/0xa40
[ 6256.769243][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6256.769243][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6256.769243][   T73]      netlink_rcv_skb+0x130/0x360
[ 6256.769243][   T73]      netlink_unicast+0x449/0x710
[ 6256.769243][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6256.769243][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6256.769243][   T73]      ___sys_sendmsg+0xee/0x170
[ 6256.769243][   T73]      __sys_sendmsg+0xcd/0x170
[ 6256.769243][   T73]      do_syscall_64+0xc6/0x1e0
[ 6256.769243][   T73] 
[ 6256.771303][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6256.771303][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6256.771303][   T73]      ipv6_find_idev+0x102/0x170
[ 6256.771303][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6256.771303][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6256.771303][   T73]      netlink_rcv_skb+0x130/0x360
[ 6256.771303][   T73]      netlink_unicast+0x449/0x710
[ 6256.771303][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6256.771303][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6256.771303][   T73]      ___sys_sendmsg+0xee/0x170
[ 6256.771303][   T73]      __sys_sendmsg+0xcd/0x170
[ 6256.771303][   T73]      do_syscall_64+0xc6/0x1e0
[ 6256.771303][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6256.771303][   T73] 
[ 6256.772956][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6256.772956][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6256.772956][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6256.772956][   T73]      ipv6_find_idev+0x102/0x170
[ 6256.772956][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6256.772956][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6256.772956][   T73]      netlink_rcv_skb+0x130/0x360
[ 6256.772956][   T73]      netlink_unicast+0x449/0x710
[ 6256.772956][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6256.772956][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6256.772956][   T73]      ___sys_sendmsg+0xee/0x170
[ 6256.772956][   T73]      __sys_sendmsg+0xcd/0x170
[ 6256.772956][   T73]      do_syscall_64+0xc6/0x1e0
[ 6256.772956][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6256.772956][   T73] 
[ 6256.774865][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6256.775146][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6256.775146][   T73]      netdev_get_by_index+0x5e/0x80
[ 6256.775146][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6256.775146][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6256.775146][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6256.775146][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6256.775146][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6256.775146][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6256.775146][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6256.775146][   T73]      addrconf_dad_begin+0x310/0x670
[ 6256.775146][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6256.775146][   T73]      process_one_work+0x84d/0x18a0
[ 6256.775146][   T73]      worker_thread+0x587/0xd30
[ 6256.775146][   T73]      kthread+0x28a/0x350
[ 6256.775146][   T73]      ret_from_fork+0x31/0x70
[ 6256.775146][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6256.775146][   T73] 
[ 6256.777241][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6256.777241][   T73]      netdev_get_by_index+0x5e/0x80
[ 6256.777241][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6256.777241][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6256.777241][   T73]      ip6_route_add+0x1c/0x140
[ 6256.777241][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6256.777241][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6256.777241][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6256.777241][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6256.777241][   T73]      netlink_rcv_skb+0x130/0x360
[ 6256.777241][   T73]      netlink_unicast+0x449/0x710
[ 6256.777241][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6256.777241][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6256.777241][   T73]      ___sys_sendmsg+0xee/0x170
[ 6256.777241][   T73]      __sys_sendmsg+0xcd/0x170
[ 6256.777241][   T73]      do_syscall_64+0xc6/0x1e0
[ 6256.777241][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6256.777241][   T73] 
[ 6256.779377][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6256.779377][   T73]      netdev_get_by_index+0x5e/0x80
[ 6256.779377][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6256.779377][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6256.779377][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6256.779377][   T73]      ipv6_add_addr+0x411/0x2000
[ 6256.779377][   T73]      inet6_addr_add+0x30e/0xa40
[ 6256.779377][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6256.779377][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6256.779377][   T73]      netlink_rcv_skb+0x130/0x360
[ 6256.779377][   T73]      netlink_unicast+0x449/0x710
[ 6256.779377][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6256.779377][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6256.779377][   T73]      ___sys_sendmsg+0xee/0x170
[ 6256.779377][   T73]      __sys_sendmsg+0xcd/0x170
[ 6256.779377][   T73]      do_syscall_64+0xc6/0x1e0
[ 6256.779377][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6256.779377][   T73] 
[ 6256.781497][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6256.781497][   T73]      netdev_get_by_index+0x5e/0x80
[ 6256.781497][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6256.781497][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6256.781497][   T73]      ip6_route_add+0x1c/0x140
[ 6256.781497][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6256.781497][   T73]      addrconf_add_dev+0xe2/0x170
[ 6256.781497][   T73]      inet6_addr_add+0x12f/0xa40
[ 6256.781497][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6256.781497][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6256.781497][   T73]      netlink_rcv_skb+0x130/0x360
[ 6256.781497][   T73]      netlink_unicast+0x449/0x710
[ 6256.781497][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6256.781497][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6256.781497][   T73]      ___sys_sendmsg+0xee/0x170
[ 6256.781497][   T73]      __sys_sendmsg+0xcd/0x170
[ 6256.781497][   T73]      do_syscall_64+0xc6/0x1e0
[ 6256.781497][   T73] 
[ 6256.783712][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6256.783712][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6256.783712][   T73]      ipv6_find_idev+0x102/0x170
[ 6256.783712][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6256.783712][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6256.783712][   T73]      netlink_rcv_skb+0x130/0x360
[ 6256.783712][   T73]      netlink_unicast+0x449/0x710
[ 6256.783712][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6256.783712][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6256.783712][   T73]      ___sys_sendmsg+0xee/0x170
[ 6256.783712][   T73]      __sys_sendmsg+0xcd/0x170
[ 6256.783712][   T73]      do_syscall_64+0xc6/0x1e0
[ 6256.783712][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6256.783712][   T73] 
[ 6256.785364][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6256.785364][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6256.785364][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6256.785364][   T73]      ipv6_find_idev+0x102/0x170
[ 6256.785364][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6256.785364][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6256.785364][   T73]      netlink_rcv_skb+0x130/0x360
[ 6256.785364][   T73]      netlink_unicast+0x449/0x710
[ 6256.785364][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6256.785364][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6256.785364][   T73]      ___sys_sendmsg+0xee/0x170
[ 6256.785364][   T73]      __sys_sendmsg+0xcd/0x170
[ 6256.785364][   T73]      do_syscall_64+0xc6/0x1e0
[ 6256.785364][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6256.785364][   T73] 
[ 6266.839851][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6266.840288][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6266.840288][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6266.840288][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6266.840288][   T73]      fib6_nh_init+0xa22/0x1580
[ 6266.840288][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6266.840288][   T73]      ip6_route_add+0x1c/0x140
[ 6266.840288][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6266.840288][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6266.840288][   T73]      netlink_rcv_skb+0x130/0x360
[ 6266.840288][   T73]      netlink_unicast+0x449/0x710
[ 6266.840288][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6266.840288][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6266.840288][   T73]      ___sys_sendmsg+0xee/0x170
[ 6266.840288][   T73]      __sys_sendmsg+0xcd/0x170
[ 6266.840288][   T73]      do_syscall_64+0xc6/0x1e0
[ 6266.840288][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6266.840288][   T73] 
[ 6266.842215][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6266.842215][   T73]      dst_init+0x84/0x4a0
[ 6266.842215][   T73]      dst_alloc+0x97/0x150
[ 6266.842215][   T73]      ip6_dst_alloc+0x23/0x90
[ 6266.842215][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6266.842215][   T73]      ip6_pol_route+0x56f/0x840
[ 6266.842215][   T73]      fib6_rule_lookup+0x456/0x630
[ 6266.842215][   T73]      ip6_route_input+0x59c/0xa50
[ 6266.842215][   T73]      ipv6_rcv+0x397/0x810
[ 6266.842215][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6266.842215][   T73]      process_backlog+0x101/0x620
[ 6266.842215][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6266.842215][   T73]      net_rx_action+0x495/0xbe0
[ 6266.842215][   T73]      __do_softirq+0x1b5/0x7f6
[ 6266.842215][   T73] 
[ 6266.843889][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6266.843889][   T73]      netdev_get_by_index+0x5e/0x80
[ 6266.843889][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6266.843889][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6266.843889][   T73]      ip6_route_add+0x1c/0x140
[ 6266.843889][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6266.843889][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6266.843889][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6266.843889][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6266.843889][   T73]      netlink_rcv_skb+0x130/0x360
[ 6266.843889][   T73]      netlink_unicast+0x449/0x710
[ 6266.843889][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6266.843889][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6266.843889][   T73]      ___sys_sendmsg+0xee/0x170
[ 6266.843889][   T73]      __sys_sendmsg+0xcd/0x170
[ 6266.843889][   T73]      do_syscall_64+0xc6/0x1e0
[ 6266.843889][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6266.843889][   T73] 
[ 6266.845941][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6266.845941][   T73]      netdev_get_by_index+0x5e/0x80
[ 6266.845941][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6266.845941][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6266.845941][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6266.845941][   T73]      ipv6_add_addr+0x411/0x2000
[ 6266.845941][   T73]      inet6_addr_add+0x30e/0xa40
[ 6266.845941][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6266.845941][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6266.845941][   T73]      netlink_rcv_skb+0x130/0x360
[ 6266.845941][   T73]      netlink_unicast+0x449/0x710
[ 6266.845941][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6266.845941][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6266.845941][   T73]      ___sys_sendmsg+0xee/0x170
[ 6266.845941][   T73]      __sys_sendmsg+0xcd/0x170
[ 6266.845941][   T73]      do_syscall_64+0xc6/0x1e0
[ 6266.845941][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6266.845941][   T73] 
[ 6266.847963][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6266.847963][   T73]      netdev_get_by_index+0x5e/0x80
[ 6266.847963][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6266.847963][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6266.847963][   T73]      ip6_route_add+0x1c/0x140
[ 6266.847963][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6266.847963][   T73]      addrconf_add_dev+0xe2/0x170
[ 6266.847963][   T73]      inet6_addr_add+0x12f/0xa40
[ 6266.847963][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6266.847963][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6266.847963][   T73]      netlink_rcv_skb+0x130/0x360
[ 6266.847963][   T73]      netlink_unicast+0x449/0x710
[ 6266.847963][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6266.847963][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6266.847963][   T73]      ___sys_sendmsg+0xee/0x170
[ 6266.847963][   T73]      __sys_sendmsg+0xcd/0x170
[ 6266.847963][   T73]      do_syscall_64+0xc6/0x1e0
[ 6266.847963][   T73] 
[ 6266.849962][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6266.849962][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6266.849962][   T73]      ipv6_find_idev+0x102/0x170
[ 6266.849962][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6266.849962][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6266.849962][   T73]      netlink_rcv_skb+0x130/0x360
[ 6266.849962][   T73]      netlink_unicast+0x449/0x710
[ 6266.849962][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6266.849962][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6266.849962][   T73]      ___sys_sendmsg+0xee/0x170
[ 6266.849962][   T73]      __sys_sendmsg+0xcd/0x170
[ 6266.849962][   T73]      do_syscall_64+0xc6/0x1e0
[ 6266.849962][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6266.849962][   T73] 
[ 6266.851523][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6266.851523][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6266.851523][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6266.851523][   T73]      ipv6_find_idev+0x102/0x170
[ 6266.851523][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6266.851523][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6266.851523][   T73]      netlink_rcv_skb+0x130/0x360
[ 6266.851523][   T73]      netlink_unicast+0x449/0x710
[ 6266.851523][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6266.851523][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6266.851523][   T73]      ___sys_sendmsg+0xee/0x170
[ 6266.851523][   T73]      __sys_sendmsg+0xcd/0x170
[ 6266.851523][   T73]      do_syscall_64+0xc6/0x1e0
[ 6266.851523][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6266.851523][   T73] 
[ 6266.853253][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6266.853533][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6266.853533][   T73]      netdev_get_by_index+0x5e/0x80
[ 6266.853533][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6266.853533][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6266.853533][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6266.853533][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6266.853533][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6266.853533][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6266.853533][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6266.853533][   T73]      addrconf_dad_begin+0x310/0x670
[ 6266.853533][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6266.853533][   T73]      process_one_work+0x84d/0x18a0
[ 6266.853533][   T73]      worker_thread+0x587/0xd30
[ 6266.853533][   T73]      kthread+0x28a/0x350
[ 6266.853533][   T73]      ret_from_fork+0x31/0x70
[ 6266.853533][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6266.853533][   T73] 
[ 6266.855477][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6266.855477][   T73]      netdev_get_by_index+0x5e/0x80
[ 6266.855477][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6266.855477][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6266.855477][   T73]      ip6_route_add+0x1c/0x140
[ 6266.855477][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6266.855477][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6266.855477][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6266.855477][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6266.855477][   T73]      netlink_rcv_skb+0x130/0x360
[ 6266.855477][   T73]      netlink_unicast+0x449/0x710
[ 6266.855477][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6266.855477][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6266.855477][   T73]      ___sys_sendmsg+0xee/0x170
[ 6266.855477][   T73]      __sys_sendmsg+0xcd/0x170
[ 6266.855477][   T73]      do_syscall_64+0xc6/0x1e0
[ 6266.855477][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6266.855477][   T73] 
[ 6266.857509][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6266.857509][   T73]      netdev_get_by_index+0x5e/0x80
[ 6266.857509][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6266.857509][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6266.857509][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6266.857509][   T73]      ipv6_add_addr+0x411/0x2000
[ 6266.857509][   T73]      inet6_addr_add+0x30e/0xa40
[ 6266.857509][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6266.857509][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6266.857509][   T73]      netlink_rcv_skb+0x130/0x360
[ 6266.857509][   T73]      netlink_unicast+0x449/0x710
[ 6266.857509][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6266.857509][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6266.857509][   T73]      ___sys_sendmsg+0xee/0x170
[ 6266.857509][   T73]      __sys_sendmsg+0xcd/0x170
[ 6266.857509][   T73]      do_syscall_64+0xc6/0x1e0
[ 6266.857509][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6266.857509][   T73] 
[ 6266.859537][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6266.859537][   T73]      netdev_get_by_index+0x5e/0x80
[ 6266.859537][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6266.859537][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6266.859537][   T73]      ip6_route_add+0x1c/0x140
[ 6266.859537][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6266.859537][   T73]      addrconf_add_dev+0xe2/0x170
[ 6266.859537][   T73]      inet6_addr_add+0x12f/0xa40
[ 6266.859537][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6266.859537][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6266.859537][   T73]      netlink_rcv_skb+0x130/0x360
[ 6266.859537][   T73]      netlink_unicast+0x449/0x710
[ 6266.859537][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6266.859537][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6266.859537][   T73]      ___sys_sendmsg+0xee/0x170
[ 6266.859537][   T73]      __sys_sendmsg+0xcd/0x170
[ 6266.859537][   T73]      do_syscall_64+0xc6/0x1e0
[ 6266.859537][   T73] 
[ 6266.861538][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6266.861538][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6266.861538][   T73]      ipv6_find_idev+0x102/0x170
[ 6266.861538][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6266.861538][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6266.861538][   T73]      netlink_rcv_skb+0x130/0x360
[ 6266.861538][   T73]      netlink_unicast+0x449/0x710
[ 6266.861538][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6266.861538][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6266.861538][   T73]      ___sys_sendmsg+0xee/0x170
[ 6266.861538][   T73]      __sys_sendmsg+0xcd/0x170
[ 6266.861538][   T73]      do_syscall_64+0xc6/0x1e0
[ 6266.861538][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6266.861538][   T73] 
[ 6266.863110][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6266.863110][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6266.863110][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6266.863110][   T73]      ipv6_find_idev+0x102/0x170
[ 6266.863110][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6266.863110][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6266.863110][   T73]      netlink_rcv_skb+0x130/0x360
[ 6266.863110][   T73]      netlink_unicast+0x449/0x710
[ 6266.863110][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6266.863110][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6266.863110][   T73]      ___sys_sendmsg+0xee/0x170
[ 6266.863110][   T73]      __sys_sendmsg+0xcd/0x170
[ 6266.863110][   T73]      do_syscall_64+0xc6/0x1e0
[ 6266.863110][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6266.863110][   T73] 
[ 6266.864844][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6266.865117][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6266.865117][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6266.865117][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6266.865117][   T73]      fib6_nh_init+0xa22/0x1580
[ 6266.865117][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6266.865117][   T73]      ip6_route_add+0x1c/0x140
[ 6266.865117][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6266.865117][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6266.865117][   T73]      netlink_rcv_skb+0x130/0x360
[ 6266.865117][   T73]      netlink_unicast+0x449/0x710
[ 6266.865117][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6266.865117][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6266.865117][   T73]      ___sys_sendmsg+0xee/0x170
[ 6266.865117][   T73]      __sys_sendmsg+0xcd/0x170
[ 6266.865117][   T73]      do_syscall_64+0xc6/0x1e0
[ 6266.865117][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6266.865117][   T73] 
[ 6266.867223][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6266.867223][   T73]      dst_init+0x84/0x4a0
[ 6266.867223][   T73]      dst_alloc+0x97/0x150
[ 6266.867223][   T73]      ip6_dst_alloc+0x23/0x90
[ 6266.867223][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6266.867223][   T73]      ip6_pol_route+0x56f/0x840
[ 6266.867223][   T73]      fib6_rule_lookup+0x456/0x630
[ 6266.867223][   T73]      ip6_route_input+0x59c/0xa50
[ 6266.867223][   T73]      ipv6_rcv+0x397/0x810
[ 6266.867223][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6266.867223][   T73]      process_backlog+0x101/0x620
[ 6266.867223][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6266.867223][   T73]      net_rx_action+0x495/0xbe0
[ 6266.867223][   T73]      __do_softirq+0x1b5/0x7f6
[ 6266.867223][   T73] 
[ 6266.869089][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6266.869089][   T73]      netdev_get_by_index+0x5e/0x80
[ 6266.869089][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6266.869089][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6266.869089][   T73]      ip6_route_add+0x1c/0x140
[ 6266.869089][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6266.869089][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6266.869089][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6266.869089][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6266.869089][   T73]      netlink_rcv_skb+0x130/0x360
[ 6266.869089][   T73]      netlink_unicast+0x449/0x710
[ 6266.869089][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6266.869089][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6266.869089][   T73]      ___sys_sendmsg+0xee/0x170
[ 6266.869089][   T73]      __sys_sendmsg+0xcd/0x170
[ 6266.869089][   T73]      do_syscall_64+0xc6/0x1e0
[ 6266.869089][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6266.869089][   T73] 
[ 6266.871365][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6266.871365][   T73]      netdev_get_by_index+0x5e/0x80
[ 6266.871365][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6266.871365][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6266.871365][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6266.871365][   T73]      ipv6_add_addr+0x411/0x2000
[ 6266.871365][   T73]      inet6_addr_add+0x30e/0xa40
[ 6266.871365][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6266.871365][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6266.871365][   T73]      netlink_rcv_skb+0x130/0x360
[ 6266.871365][   T73]      netlink_unicast+0x449/0x710
[ 6266.871365][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6266.871365][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6266.871365][   T73]      ___sys_sendmsg+0xee/0x170
[ 6266.871365][   T73]      __sys_sendmsg+0xcd/0x170
[ 6266.871365][   T73]      do_syscall_64+0xc6/0x1e0
[ 6266.871365][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6266.871365][   T73] 
[ 6266.873613][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6266.873613][   T73]      netdev_get_by_index+0x5e/0x80
[ 6266.873613][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6266.873613][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6266.873613][   T73]      ip6_route_add+0x1c/0x140
[ 6266.873613][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6266.873613][   T73]      addrconf_add_dev+0xe2/0x170
[ 6266.873613][   T73]      inet6_addr_add+0x12f/0xa40
[ 6266.873613][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6266.873613][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6266.873613][   T73]      netlink_rcv_skb+0x130/0x360
[ 6266.873613][   T73]      netlink_unicast+0x449/0x710
[ 6266.873613][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6266.873613][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6266.873613][   T73]      ___sys_sendmsg+0xee/0x170
[ 6266.873613][   T73]      __sys_sendmsg+0xcd/0x170
[ 6266.873613][   T73]      do_syscall_64+0xc6/0x1e0
[ 6266.873613][   T73] 
[ 6266.875763][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6266.875763][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6266.875763][   T73]      ipv6_find_idev+0x102/0x170
[ 6266.875763][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6266.875763][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6266.875763][   T73]      netlink_rcv_skb+0x130/0x360
[ 6266.875763][   T73]      netlink_unicast+0x449/0x710
[ 6266.875763][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6266.875763][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6266.875763][   T73]      ___sys_sendmsg+0xee/0x170
[ 6266.875763][   T73]      __sys_sendmsg+0xcd/0x170
[ 6266.875763][   T73]      do_syscall_64+0xc6/0x1e0
[ 6266.875763][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6266.875763][   T73] 
[ 6266.877400][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6266.877400][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6266.877400][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6266.877400][   T73]      ipv6_find_idev+0x102/0x170
[ 6266.877400][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6266.877400][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6266.877400][   T73]      netlink_rcv_skb+0x130/0x360
[ 6266.877400][   T73]      netlink_unicast+0x449/0x710
[ 6266.877400][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6266.877400][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6266.877400][   T73]      ___sys_sendmsg+0xee/0x170
[ 6266.877400][   T73]      __sys_sendmsg+0xcd/0x170
[ 6266.877400][   T73]      do_syscall_64+0xc6/0x1e0
[ 6266.877400][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6266.877400][   T73] 
[ 6266.879268][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6266.879550][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6266.879550][   T73]      netdev_get_by_index+0x5e/0x80
[ 6266.879550][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6266.879550][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6266.879550][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6266.879550][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6266.879550][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6266.879550][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6266.879550][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6266.879550][   T73]      addrconf_dad_begin+0x310/0x670
[ 6266.879550][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6266.879550][   T73]      process_one_work+0x84d/0x18a0
[ 6266.879550][   T73]      worker_thread+0x587/0xd30
[ 6266.879550][   T73]      kthread+0x28a/0x350
[ 6266.879550][   T73]      ret_from_fork+0x31/0x70
[ 6266.879550][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6266.879550][   T73] 
[ 6266.881692][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6266.881692][   T73]      netdev_get_by_index+0x5e/0x80
[ 6266.881692][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6266.881692][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6266.881692][   T73]      ip6_route_add+0x1c/0x140
[ 6266.881692][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6266.881692][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6266.881692][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6266.881692][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6266.881692][   T73]      netlink_rcv_skb+0x130/0x360
[ 6266.881692][   T73]      netlink_unicast+0x449/0x710
[ 6266.881692][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6266.881692][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6266.881692][   T73]      ___sys_sendmsg+0xee/0x170
[ 6266.881692][   T73]      __sys_sendmsg+0xcd/0x170
[ 6266.881692][   T73]      do_syscall_64+0xc6/0x1e0
[ 6266.881692][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6266.881692][   T73] 
[ 6266.883873][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6266.883873][   T73]      netdev_get_by_index+0x5e/0x80
[ 6266.883873][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6266.883873][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6266.883873][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6266.883873][   T73]      ipv6_add_addr+0x411/0x2000
[ 6266.883873][   T73]      inet6_addr_add+0x30e/0xa40
[ 6266.883873][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6266.883873][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6266.883873][   T73]      netlink_rcv_skb+0x130/0x360
[ 6266.883873][   T73]      netlink_unicast+0x449/0x710
[ 6266.883873][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6266.883873][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6266.883873][   T73]      ___sys_sendmsg+0xee/0x170
[ 6266.883873][   T73]      __sys_sendmsg+0xcd/0x170
[ 6266.883873][   T73]      do_syscall_64+0xc6/0x1e0
[ 6266.883873][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6266.883873][   T73] 
[ 6266.886065][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6266.886065][   T73]      netdev_get_by_index+0x5e/0x80
[ 6266.886065][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6266.886065][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6266.886065][   T73]      ip6_route_add+0x1c/0x140
[ 6266.886065][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6266.886065][   T73]      addrconf_add_dev+0xe2/0x170
[ 6266.886065][   T73]      inet6_addr_add+0x12f/0xa40
[ 6266.886065][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6266.886065][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6266.886065][   T73]      netlink_rcv_skb+0x130/0x360
[ 6266.886065][   T73]      netlink_unicast+0x449/0x710
[ 6266.886065][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6266.886065][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6266.886065][   T73]      ___sys_sendmsg+0xee/0x170
[ 6266.886065][   T73]      __sys_sendmsg+0xcd/0x170
[ 6266.886065][   T73]      do_syscall_64+0xc6/0x1e0
[ 6266.886065][   T73] 
[ 6266.888153][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6266.888153][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6266.888153][   T73]      ipv6_find_idev+0x102/0x170
[ 6266.888153][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6266.888153][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6266.888153][   T73]      netlink_rcv_skb+0x130/0x360
[ 6266.888153][   T73]      netlink_unicast+0x449/0x710
[ 6266.888153][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6266.888153][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6266.888153][   T73]      ___sys_sendmsg+0xee/0x170
[ 6266.888153][   T73]      __sys_sendmsg+0xcd/0x170
[ 6266.888153][   T73]      do_syscall_64+0xc6/0x1e0
[ 6266.888153][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6266.888153][   T73] 
[ 6266.889857][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6266.889857][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6266.889857][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6266.889857][   T73]      ipv6_find_idev+0x102/0x170
[ 6266.889857][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6266.889857][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6266.889857][   T73]      netlink_rcv_skb+0x130/0x360
[ 6266.889857][   T73]      netlink_unicast+0x449/0x710
[ 6266.889857][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6266.889857][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6266.889857][   T73]      ___sys_sendmsg+0xee/0x170
[ 6266.889857][   T73]      __sys_sendmsg+0xcd/0x170
[ 6266.889857][   T73]      do_syscall_64+0xc6/0x1e0
[ 6266.889857][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6266.889857][   T73] 
[ 6277.127768][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6277.128204][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6277.128204][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6277.128204][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6277.128204][   T73]      fib6_nh_init+0xa22/0x1580
[ 6277.128204][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6277.128204][   T73]      ip6_route_add+0x1c/0x140
[ 6277.128204][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6277.128204][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6277.128204][   T73]      netlink_rcv_skb+0x130/0x360
[ 6277.128204][   T73]      netlink_unicast+0x449/0x710
[ 6277.128204][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6277.128204][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6277.128204][   T73]      ___sys_sendmsg+0xee/0x170
[ 6277.128204][   T73]      __sys_sendmsg+0xcd/0x170
[ 6277.128204][   T73]      do_syscall_64+0xc6/0x1e0
[ 6277.128204][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6277.128204][   T73] 
[ 6277.130144][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6277.130144][   T73]      dst_init+0x84/0x4a0
[ 6277.130144][   T73]      dst_alloc+0x97/0x150
[ 6277.130144][   T73]      ip6_dst_alloc+0x23/0x90
[ 6277.130144][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6277.130144][   T73]      ip6_pol_route+0x56f/0x840
[ 6277.130144][   T73]      fib6_rule_lookup+0x456/0x630
[ 6277.130144][   T73]      ip6_route_input+0x59c/0xa50
[ 6277.130144][   T73]      ipv6_rcv+0x397/0x810
[ 6277.130144][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6277.130144][   T73]      process_backlog+0x101/0x620
[ 6277.130144][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6277.130144][   T73]      net_rx_action+0x495/0xbe0
[ 6277.130144][   T73]      __do_softirq+0x1b5/0x7f6
[ 6277.130144][   T73] 
[ 6277.131820][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6277.131820][   T73]      netdev_get_by_index+0x5e/0x80
[ 6277.131820][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6277.131820][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6277.131820][   T73]      ip6_route_add+0x1c/0x140
[ 6277.131820][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6277.131820][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6277.131820][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6277.131820][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6277.131820][   T73]      netlink_rcv_skb+0x130/0x360
[ 6277.131820][   T73]      netlink_unicast+0x449/0x710
[ 6277.131820][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6277.131820][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6277.131820][   T73]      ___sys_sendmsg+0xee/0x170
[ 6277.131820][   T73]      __sys_sendmsg+0xcd/0x170
[ 6277.131820][   T73]      do_syscall_64+0xc6/0x1e0
[ 6277.131820][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6277.131820][   T73] 
[ 6277.133870][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6277.133870][   T73]      netdev_get_by_index+0x5e/0x80
[ 6277.133870][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6277.133870][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6277.133870][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6277.133870][   T73]      ipv6_add_addr+0x411/0x2000
[ 6277.133870][   T73]      inet6_addr_add+0x30e/0xa40
[ 6277.133870][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6277.133870][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6277.133870][   T73]      netlink_rcv_skb+0x130/0x360
[ 6277.133870][   T73]      netlink_unicast+0x449/0x710
[ 6277.133870][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6277.133870][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6277.133870][   T73]      ___sys_sendmsg+0xee/0x170
[ 6277.133870][   T73]      __sys_sendmsg+0xcd/0x170
[ 6277.133870][   T73]      do_syscall_64+0xc6/0x1e0
[ 6277.133870][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6277.133870][   T73] 
[ 6277.135932][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6277.135932][   T73]      netdev_get_by_index+0x5e/0x80
[ 6277.135932][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6277.135932][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6277.135932][   T73]      ip6_route_add+0x1c/0x140
[ 6277.135932][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6277.135932][   T73]      addrconf_add_dev+0xe2/0x170
[ 6277.135932][   T73]      inet6_addr_add+0x12f/0xa40
[ 6277.135932][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6277.135932][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6277.135932][   T73]      netlink_rcv_skb+0x130/0x360
[ 6277.135932][   T73]      netlink_unicast+0x449/0x710
[ 6277.135932][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6277.135932][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6277.135932][   T73]      ___sys_sendmsg+0xee/0x170
[ 6277.135932][   T73]      __sys_sendmsg+0xcd/0x170
[ 6277.135932][   T73]      do_syscall_64+0xc6/0x1e0
[ 6277.135932][   T73] 
[ 6277.137951][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6277.137951][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6277.137951][   T73]      ipv6_find_idev+0x102/0x170
[ 6277.137951][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6277.137951][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6277.137951][   T73]      netlink_rcv_skb+0x130/0x360
[ 6277.137951][   T73]      netlink_unicast+0x449/0x710
[ 6277.137951][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6277.137951][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6277.137951][   T73]      ___sys_sendmsg+0xee/0x170
[ 6277.137951][   T73]      __sys_sendmsg+0xcd/0x170
[ 6277.137951][   T73]      do_syscall_64+0xc6/0x1e0
[ 6277.137951][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6277.137951][   T73] 
[ 6277.139521][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6277.139521][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6277.139521][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6277.139521][   T73]      ipv6_find_idev+0x102/0x170
[ 6277.139521][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6277.139521][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6277.139521][   T73]      netlink_rcv_skb+0x130/0x360
[ 6277.139521][   T73]      netlink_unicast+0x449/0x710
[ 6277.139521][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6277.139521][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6277.139521][   T73]      ___sys_sendmsg+0xee/0x170
[ 6277.139521][   T73]      __sys_sendmsg+0xcd/0x170
[ 6277.139521][   T73]      do_syscall_64+0xc6/0x1e0
[ 6277.139521][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6277.139521][   T73] 
[ 6277.141247][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6277.141526][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6277.141526][   T73]      netdev_get_by_index+0x5e/0x80
[ 6277.141526][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6277.141526][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6277.141526][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6277.141526][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6277.141526][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6277.141526][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6277.141526][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6277.141526][   T73]      addrconf_dad_begin+0x310/0x670
[ 6277.141526][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6277.141526][   T73]      process_one_work+0x84d/0x18a0
[ 6277.141526][   T73]      worker_thread+0x587/0xd30
[ 6277.141526][   T73]      kthread+0x28a/0x350
[ 6277.141526][   T73]      ret_from_fork+0x31/0x70
[ 6277.141526][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6277.141526][   T73] 
[ 6277.143480][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6277.143480][   T73]      netdev_get_by_index+0x5e/0x80
[ 6277.143480][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6277.143480][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6277.143480][   T73]      ip6_route_add+0x1c/0x140
[ 6277.143480][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6277.143480][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6277.143480][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6277.143480][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6277.143480][   T73]      netlink_rcv_skb+0x130/0x360
[ 6277.143480][   T73]      netlink_unicast+0x449/0x710
[ 6277.143480][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6277.143480][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6277.143480][   T73]      ___sys_sendmsg+0xee/0x170
[ 6277.143480][   T73]      __sys_sendmsg+0xcd/0x170
[ 6277.143480][   T73]      do_syscall_64+0xc6/0x1e0
[ 6277.143480][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6277.143480][   T73] 
[ 6277.145545][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6277.145545][   T73]      netdev_get_by_index+0x5e/0x80
[ 6277.145545][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6277.145545][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6277.145545][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6277.145545][   T73]      ipv6_add_addr+0x411/0x2000
[ 6277.145545][   T73]      inet6_addr_add+0x30e/0xa40
[ 6277.145545][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6277.145545][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6277.145545][   T73]      netlink_rcv_skb+0x130/0x360
[ 6277.145545][   T73]      netlink_unicast+0x449/0x710
[ 6277.145545][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6277.145545][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6277.145545][   T73]      ___sys_sendmsg+0xee/0x170
[ 6277.145545][   T73]      __sys_sendmsg+0xcd/0x170
[ 6277.145545][   T73]      do_syscall_64+0xc6/0x1e0
[ 6277.145545][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6277.145545][   T73] 
[ 6277.147585][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6277.147585][   T73]      netdev_get_by_index+0x5e/0x80
[ 6277.147585][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6277.147585][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6277.147585][   T73]      ip6_route_add+0x1c/0x140
[ 6277.147585][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6277.147585][   T73]      addrconf_add_dev+0xe2/0x170
[ 6277.147585][   T73]      inet6_addr_add+0x12f/0xa40
[ 6277.147585][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6277.147585][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6277.147585][   T73]      netlink_rcv_skb+0x130/0x360
[ 6277.147585][   T73]      netlink_unicast+0x449/0x710
[ 6277.147585][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6277.147585][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6277.147585][   T73]      ___sys_sendmsg+0xee/0x170
[ 6277.147585][   T73]      __sys_sendmsg+0xcd/0x170
[ 6277.147585][   T73]      do_syscall_64+0xc6/0x1e0
[ 6277.147585][   T73] 
[ 6277.149613][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6277.149613][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6277.149613][   T73]      ipv6_find_idev+0x102/0x170
[ 6277.149613][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6277.149613][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6277.149613][   T73]      netlink_rcv_skb+0x130/0x360
[ 6277.149613][   T73]      netlink_unicast+0x449/0x710
[ 6277.149613][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6277.149613][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6277.149613][   T73]      ___sys_sendmsg+0xee/0x170
[ 6277.149613][   T73]      __sys_sendmsg+0xcd/0x170
[ 6277.149613][   T73]      do_syscall_64+0xc6/0x1e0
[ 6277.149613][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6277.149613][   T73] 
[ 6277.151182][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6277.151182][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6277.151182][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6277.151182][   T73]      ipv6_find_idev+0x102/0x170
[ 6277.151182][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6277.151182][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6277.151182][   T73]      netlink_rcv_skb+0x130/0x360
[ 6277.151182][   T73]      netlink_unicast+0x449/0x710
[ 6277.151182][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6277.151182][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6277.151182][   T73]      ___sys_sendmsg+0xee/0x170
[ 6277.151182][   T73]      __sys_sendmsg+0xcd/0x170
[ 6277.151182][   T73]      do_syscall_64+0xc6/0x1e0
[ 6277.151182][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6277.151182][   T73] 
[ 6277.152903][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6277.153173][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6277.153173][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6277.153173][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6277.153173][   T73]      fib6_nh_init+0xa22/0x1580
[ 6277.153173][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6277.153173][   T73]      ip6_route_add+0x1c/0x140
[ 6277.153173][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6277.153173][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6277.153173][   T73]      netlink_rcv_skb+0x130/0x360
[ 6277.153173][   T73]      netlink_unicast+0x449/0x710
[ 6277.153173][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6277.153173][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6277.153173][   T73]      ___sys_sendmsg+0xee/0x170
[ 6277.153173][   T73]      __sys_sendmsg+0xcd/0x170
[ 6277.153173][   T73]      do_syscall_64+0xc6/0x1e0
[ 6277.153173][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6277.153173][   T73] 
[ 6277.155218][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6277.155218][   T73]      dst_init+0x84/0x4a0
[ 6277.155218][   T73]      dst_alloc+0x97/0x150
[ 6277.155218][   T73]      ip6_dst_alloc+0x23/0x90
[ 6277.155218][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6277.155218][   T73]      ip6_pol_route+0x56f/0x840
[ 6277.155218][   T73]      fib6_rule_lookup+0x456/0x630
[ 6277.155218][   T73]      ip6_route_input+0x59c/0xa50
[ 6277.155218][   T73]      ipv6_rcv+0x397/0x810
[ 6277.155218][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6277.155218][   T73]      process_backlog+0x101/0x620
[ 6277.155218][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6277.155218][   T73]      net_rx_action+0x495/0xbe0
[ 6277.155218][   T73]      __do_softirq+0x1b5/0x7f6
[ 6277.155218][   T73] 
[ 6277.157139][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6277.157139][   T73]      netdev_get_by_index+0x5e/0x80
[ 6277.157139][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6277.157139][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6277.157139][   T73]      ip6_route_add+0x1c/0x140
[ 6277.157139][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6277.157139][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6277.157139][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6277.157139][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6277.157139][   T73]      netlink_rcv_skb+0x130/0x360
[ 6277.157139][   T73]      netlink_unicast+0x449/0x710
[ 6277.157139][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6277.157139][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6277.157139][   T73]      ___sys_sendmsg+0xee/0x170
[ 6277.157139][   T73]      __sys_sendmsg+0xcd/0x170
[ 6277.157139][   T73]      do_syscall_64+0xc6/0x1e0
[ 6277.157139][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6277.157139][   T73] 
[ 6277.159414][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6277.159414][   T73]      netdev_get_by_index+0x5e/0x80
[ 6277.159414][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6277.159414][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6277.159414][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6277.159414][   T73]      ipv6_add_addr+0x411/0x2000
[ 6277.159414][   T73]      inet6_addr_add+0x30e/0xa40
[ 6277.159414][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6277.159414][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6277.159414][   T73]      netlink_rcv_skb+0x130/0x360
[ 6277.159414][   T73]      netlink_unicast+0x449/0x710
[ 6277.159414][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6277.159414][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6277.159414][   T73]      ___sys_sendmsg+0xee/0x170
[ 6277.159414][   T73]      __sys_sendmsg+0xcd/0x170
[ 6277.159414][   T73]      do_syscall_64+0xc6/0x1e0
[ 6277.159414][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6277.159414][   T73] 
[ 6277.161704][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6277.161704][   T73]      netdev_get_by_index+0x5e/0x80
[ 6277.161704][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6277.161704][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6277.161704][   T73]      ip6_route_add+0x1c/0x140
[ 6277.161704][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6277.161704][   T73]      addrconf_add_dev+0xe2/0x170
[ 6277.161704][   T73]      inet6_addr_add+0x12f/0xa40
[ 6277.161704][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6277.161704][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6277.161704][   T73]      netlink_rcv_skb+0x130/0x360
[ 6277.161704][   T73]      netlink_unicast+0x449/0x710
[ 6277.161704][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6277.161704][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6277.161704][   T73]      ___sys_sendmsg+0xee/0x170
[ 6277.161704][   T73]      __sys_sendmsg+0xcd/0x170
[ 6277.161704][   T73]      do_syscall_64+0xc6/0x1e0
[ 6277.161704][   T73] 
[ 6277.163968][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6277.163968][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6277.163968][   T73]      ipv6_find_idev+0x102/0x170
[ 6277.163968][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6277.163968][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6277.163968][   T73]      netlink_rcv_skb+0x130/0x360
[ 6277.163968][   T73]      netlink_unicast+0x449/0x710
[ 6277.163968][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6277.163968][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6277.163968][   T73]      ___sys_sendmsg+0xee/0x170
[ 6277.163968][   T73]      __sys_sendmsg+0xcd/0x170
[ 6277.163968][   T73]      do_syscall_64+0xc6/0x1e0
[ 6277.163968][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6277.163968][   T73] 
[ 6277.166328][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6277.166328][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6277.166328][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6277.166328][   T73]      ipv6_find_idev+0x102/0x170
[ 6277.166328][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6277.166328][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6277.166328][   T73]      netlink_rcv_skb+0x130/0x360
[ 6277.166328][   T73]      netlink_unicast+0x449/0x710
[ 6277.166328][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6277.166328][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6277.166328][   T73]      ___sys_sendmsg+0xee/0x170
[ 6277.166328][   T73]      __sys_sendmsg+0xcd/0x170
[ 6277.166328][   T73]      do_syscall_64+0xc6/0x1e0
[ 6277.166328][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6277.166328][   T73] 
[ 6277.168229][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6277.168510][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6277.168510][   T73]      netdev_get_by_index+0x5e/0x80
[ 6277.168510][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6277.168510][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6277.168510][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6277.168510][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6277.168510][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6277.168510][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6277.168510][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6277.168510][   T73]      addrconf_dad_begin+0x310/0x670
[ 6277.168510][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6277.168510][   T73]      process_one_work+0x84d/0x18a0
[ 6277.168510][   T73]      worker_thread+0x587/0xd30
[ 6277.168510][   T73]      kthread+0x28a/0x350
[ 6277.168510][   T73]      ret_from_fork+0x31/0x70
[ 6277.168510][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6277.168510][   T73] 
[ 6277.170708][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6277.170708][   T73]      netdev_get_by_index+0x5e/0x80
[ 6277.170708][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6277.170708][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6277.170708][   T73]      ip6_route_add+0x1c/0x140
[ 6277.170708][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6277.170708][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6277.170708][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6277.170708][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6277.170708][   T73]      netlink_rcv_skb+0x130/0x360
[ 6277.170708][   T73]      netlink_unicast+0x449/0x710
[ 6277.170708][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6277.170708][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6277.170708][   T73]      ___sys_sendmsg+0xee/0x170
[ 6277.170708][   T73]      __sys_sendmsg+0xcd/0x170
[ 6277.170708][   T73]      do_syscall_64+0xc6/0x1e0
[ 6277.170708][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6277.170708][   T73] 
[ 6277.172996][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6277.172996][   T73]      netdev_get_by_index+0x5e/0x80
[ 6277.172996][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6277.172996][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6277.172996][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6277.172996][   T73]      ipv6_add_addr+0x411/0x2000
[ 6277.172996][   T73]      inet6_addr_add+0x30e/0xa40
[ 6277.172996][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6277.172996][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6277.172996][   T73]      netlink_rcv_skb+0x130/0x360
[ 6277.172996][   T73]      netlink_unicast+0x449/0x710
[ 6277.172996][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6277.172996][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6277.172996][   T73]      ___sys_sendmsg+0xee/0x170
[ 6277.172996][   T73]      __sys_sendmsg+0xcd/0x170
[ 6277.172996][   T73]      do_syscall_64+0xc6/0x1e0
[ 6277.172996][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6277.172996][   T73] 
[ 6277.175952][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6277.175952][   T73]      netdev_get_by_index+0x5e/0x80
[ 6277.175952][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6277.175952][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6277.175952][   T73]      ip6_route_add+0x1c/0x140
[ 6277.175952][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6277.175952][   T73]      addrconf_add_dev+0xe2/0x170
[ 6277.175952][   T73]      inet6_addr_add+0x12f/0xa40
[ 6277.175952][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6277.175952][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6277.175952][   T73]      netlink_rcv_skb+0x130/0x360
[ 6277.175952][   T73]      netlink_unicast+0x449/0x710
[ 6277.175952][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6277.175952][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6277.175952][   T73]      ___sys_sendmsg+0xee/0x170
[ 6277.175952][   T73]      __sys_sendmsg+0xcd/0x170
[ 6277.175952][   T73]      do_syscall_64+0xc6/0x1e0
[ 6277.175952][   T73] 
[ 6277.178192][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6277.178192][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6277.178192][   T73]      ipv6_find_idev+0x102/0x170
[ 6277.178192][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6277.178192][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6277.178192][   T73]      netlink_rcv_skb+0x130/0x360
[ 6277.178192][   T73]      netlink_unicast+0x449/0x710
[ 6277.178192][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6277.178192][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6277.178192][   T73]      ___sys_sendmsg+0xee/0x170
[ 6277.178192][   T73]      __sys_sendmsg+0xcd/0x170
[ 6277.178192][   T73]      do_syscall_64+0xc6/0x1e0
[ 6277.178192][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6277.178192][   T73] 
[ 6277.179937][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6277.179937][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6277.179937][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6277.179937][   T73]      ipv6_find_idev+0x102/0x170
[ 6277.179937][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6277.179937][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6277.179937][   T73]      netlink_rcv_skb+0x130/0x360
[ 6277.179937][   T73]      netlink_unicast+0x449/0x710
[ 6277.179937][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6277.179937][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6277.179937][   T73]      ___sys_sendmsg+0xee/0x170
[ 6277.179937][   T73]      __sys_sendmsg+0xcd/0x170
[ 6277.179937][   T73]      do_syscall_64+0xc6/0x1e0
[ 6277.179937][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6277.179937][   T73] 
[ 6287.423785][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6287.424214][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6287.424214][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6287.424214][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6287.424214][   T73]      fib6_nh_init+0xa22/0x1580
[ 6287.424214][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6287.424214][   T73]      ip6_route_add+0x1c/0x140
[ 6287.424214][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6287.424214][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6287.424214][   T73]      netlink_rcv_skb+0x130/0x360
[ 6287.424214][   T73]      netlink_unicast+0x449/0x710
[ 6287.424214][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6287.424214][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6287.424214][   T73]      ___sys_sendmsg+0xee/0x170
[ 6287.424214][   T73]      __sys_sendmsg+0xcd/0x170
[ 6287.424214][   T73]      do_syscall_64+0xc6/0x1e0
[ 6287.424214][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6287.424214][   T73] 
[ 6287.426133][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6287.426133][   T73]      dst_init+0x84/0x4a0
[ 6287.426133][   T73]      dst_alloc+0x97/0x150
[ 6287.426133][   T73]      ip6_dst_alloc+0x23/0x90
[ 6287.426133][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6287.426133][   T73]      ip6_pol_route+0x56f/0x840
[ 6287.426133][   T73]      fib6_rule_lookup+0x456/0x630
[ 6287.426133][   T73]      ip6_route_input+0x59c/0xa50
[ 6287.426133][   T73]      ipv6_rcv+0x397/0x810
[ 6287.426133][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6287.426133][   T73]      process_backlog+0x101/0x620
[ 6287.426133][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6287.426133][   T73]      net_rx_action+0x495/0xbe0
[ 6287.426133][   T73]      __do_softirq+0x1b5/0x7f6
[ 6287.426133][   T73] 
[ 6287.427793][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6287.427793][   T73]      netdev_get_by_index+0x5e/0x80
[ 6287.427793][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6287.427793][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6287.427793][   T73]      ip6_route_add+0x1c/0x140
[ 6287.427793][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6287.427793][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6287.427793][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6287.427793][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6287.427793][   T73]      netlink_rcv_skb+0x130/0x360
[ 6287.427793][   T73]      netlink_unicast+0x449/0x710
[ 6287.427793][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6287.427793][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6287.427793][   T73]      ___sys_sendmsg+0xee/0x170
[ 6287.427793][   T73]      __sys_sendmsg+0xcd/0x170
[ 6287.427793][   T73]      do_syscall_64+0xc6/0x1e0
[ 6287.427793][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6287.427793][   T73] 
[ 6287.429805][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6287.429805][   T73]      netdev_get_by_index+0x5e/0x80
[ 6287.429805][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6287.429805][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6287.429805][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6287.429805][   T73]      ipv6_add_addr+0x411/0x2000
[ 6287.429805][   T73]      inet6_addr_add+0x30e/0xa40
[ 6287.429805][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6287.429805][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6287.429805][   T73]      netlink_rcv_skb+0x130/0x360
[ 6287.429805][   T73]      netlink_unicast+0x449/0x710
[ 6287.429805][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6287.429805][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6287.429805][   T73]      ___sys_sendmsg+0xee/0x170
[ 6287.429805][   T73]      __sys_sendmsg+0xcd/0x170
[ 6287.429805][   T73]      do_syscall_64+0xc6/0x1e0
[ 6287.429805][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6287.429805][   T73] 
[ 6287.431812][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6287.431812][   T73]      netdev_get_by_index+0x5e/0x80
[ 6287.431812][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6287.431812][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6287.431812][   T73]      ip6_route_add+0x1c/0x140
[ 6287.431812][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6287.431812][   T73]      addrconf_add_dev+0xe2/0x170
[ 6287.431812][   T73]      inet6_addr_add+0x12f/0xa40
[ 6287.431812][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6287.431812][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6287.431812][   T73]      netlink_rcv_skb+0x130/0x360
[ 6287.431812][   T73]      netlink_unicast+0x449/0x710
[ 6287.431812][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6287.431812][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6287.431812][   T73]      ___sys_sendmsg+0xee/0x170
[ 6287.431812][   T73]      __sys_sendmsg+0xcd/0x170
[ 6287.431812][   T73]      do_syscall_64+0xc6/0x1e0
[ 6287.431812][   T73] 
[ 6287.433782][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6287.433782][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6287.433782][   T73]      ipv6_find_idev+0x102/0x170
[ 6287.433782][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6287.433782][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6287.433782][   T73]      netlink_rcv_skb+0x130/0x360
[ 6287.433782][   T73]      netlink_unicast+0x449/0x710
[ 6287.433782][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6287.433782][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6287.433782][   T73]      ___sys_sendmsg+0xee/0x170
[ 6287.433782][   T73]      __sys_sendmsg+0xcd/0x170
[ 6287.433782][   T73]      do_syscall_64+0xc6/0x1e0
[ 6287.433782][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6287.433782][   T73] 
[ 6287.435335][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6287.435335][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6287.435335][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6287.435335][   T73]      ipv6_find_idev+0x102/0x170
[ 6287.435335][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6287.435335][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6287.435335][   T73]      netlink_rcv_skb+0x130/0x360
[ 6287.435335][   T73]      netlink_unicast+0x449/0x710
[ 6287.435335][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6287.435335][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6287.435335][   T73]      ___sys_sendmsg+0xee/0x170
[ 6287.435335][   T73]      __sys_sendmsg+0xcd/0x170
[ 6287.435335][   T73]      do_syscall_64+0xc6/0x1e0
[ 6287.435335][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6287.435335][   T73] 
[ 6287.437041][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6287.437326][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6287.437326][   T73]      netdev_get_by_index+0x5e/0x80
[ 6287.437326][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6287.437326][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6287.437326][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6287.437326][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6287.437326][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6287.437326][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6287.437326][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6287.437326][   T73]      addrconf_dad_begin+0x310/0x670
[ 6287.437326][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6287.437326][   T73]      process_one_work+0x84d/0x18a0
[ 6287.437326][   T73]      worker_thread+0x587/0xd30
[ 6287.437326][   T73]      kthread+0x28a/0x350
[ 6287.437326][   T73]      ret_from_fork+0x31/0x70
[ 6287.437326][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6287.437326][   T73] 
[ 6287.439250][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6287.439250][   T73]      netdev_get_by_index+0x5e/0x80
[ 6287.439250][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6287.439250][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6287.439250][   T73]      ip6_route_add+0x1c/0x140
[ 6287.439250][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6287.439250][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6287.439250][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6287.439250][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6287.439250][   T73]      netlink_rcv_skb+0x130/0x360
[ 6287.439250][   T73]      netlink_unicast+0x449/0x710
[ 6287.439250][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6287.439250][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6287.439250][   T73]      ___sys_sendmsg+0xee/0x170
[ 6287.439250][   T73]      __sys_sendmsg+0xcd/0x170
[ 6287.439250][   T73]      do_syscall_64+0xc6/0x1e0
[ 6287.439250][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6287.439250][   T73] 
[ 6287.441246][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6287.441246][   T73]      netdev_get_by_index+0x5e/0x80
[ 6287.441246][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6287.441246][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6287.441246][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6287.441246][   T73]      ipv6_add_addr+0x411/0x2000
[ 6287.441246][   T73]      inet6_addr_add+0x30e/0xa40
[ 6287.441246][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6287.441246][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6287.441246][   T73]      netlink_rcv_skb+0x130/0x360
[ 6287.441246][   T73]      netlink_unicast+0x449/0x710
[ 6287.441246][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6287.441246][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6287.441246][   T73]      ___sys_sendmsg+0xee/0x170
[ 6287.441246][   T73]      __sys_sendmsg+0xcd/0x170
[ 6287.441246][   T73]      do_syscall_64+0xc6/0x1e0
[ 6287.441246][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6287.441246][   T73] 
[ 6287.443237][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6287.443237][   T73]      netdev_get_by_index+0x5e/0x80
[ 6287.443237][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6287.443237][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6287.443237][   T73]      ip6_route_add+0x1c/0x140
[ 6287.443237][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6287.443237][   T73]      addrconf_add_dev+0xe2/0x170
[ 6287.443237][   T73]      inet6_addr_add+0x12f/0xa40
[ 6287.443237][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6287.443237][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6287.443237][   T73]      netlink_rcv_skb+0x130/0x360
[ 6287.443237][   T73]      netlink_unicast+0x449/0x710
[ 6287.443237][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6287.443237][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6287.443237][   T73]      ___sys_sendmsg+0xee/0x170
[ 6287.443237][   T73]      __sys_sendmsg+0xcd/0x170
[ 6287.443237][   T73]      do_syscall_64+0xc6/0x1e0
[ 6287.443237][   T73] 
[ 6287.445204][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6287.445204][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6287.445204][   T73]      ipv6_find_idev+0x102/0x170
[ 6287.445204][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6287.445204][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6287.445204][   T73]      netlink_rcv_skb+0x130/0x360
[ 6287.445204][   T73]      netlink_unicast+0x449/0x710
[ 6287.445204][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6287.445204][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6287.445204][   T73]      ___sys_sendmsg+0xee/0x170
[ 6287.445204][   T73]      __sys_sendmsg+0xcd/0x170
[ 6287.445204][   T73]      do_syscall_64+0xc6/0x1e0
[ 6287.445204][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6287.445204][   T73] 
[ 6287.446746][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6287.446746][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6287.446746][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6287.446746][   T73]      ipv6_find_idev+0x102/0x170
[ 6287.446746][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6287.446746][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6287.446746][   T73]      netlink_rcv_skb+0x130/0x360
[ 6287.446746][   T73]      netlink_unicast+0x449/0x710
[ 6287.446746][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6287.446746][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6287.446746][   T73]      ___sys_sendmsg+0xee/0x170
[ 6287.446746][   T73]      __sys_sendmsg+0xcd/0x170
[ 6287.446746][   T73]      do_syscall_64+0xc6/0x1e0
[ 6287.446746][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6287.446746][   T73] 
[ 6287.448425][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6287.448715][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6287.448715][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6287.448715][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6287.448715][   T73]      fib6_nh_init+0xa22/0x1580
[ 6287.448715][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6287.448715][   T73]      ip6_route_add+0x1c/0x140
[ 6287.448715][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6287.448715][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6287.448715][   T73]      netlink_rcv_skb+0x130/0x360
[ 6287.448715][   T73]      netlink_unicast+0x449/0x710
[ 6287.448715][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6287.448715][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6287.448715][   T73]      ___sys_sendmsg+0xee/0x170
[ 6287.448715][   T73]      __sys_sendmsg+0xcd/0x170
[ 6287.448715][   T73]      do_syscall_64+0xc6/0x1e0
[ 6287.448715][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6287.448715][   T73] 
[ 6287.450796][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6287.450796][   T73]      dst_init+0x84/0x4a0
[ 6287.450796][   T73]      dst_alloc+0x97/0x150
[ 6287.450796][   T73]      ip6_dst_alloc+0x23/0x90
[ 6287.450796][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6287.450796][   T73]      ip6_pol_route+0x56f/0x840
[ 6287.450796][   T73]      fib6_rule_lookup+0x456/0x630
[ 6287.450796][   T73]      ip6_route_input+0x59c/0xa50
[ 6287.450796][   T73]      ipv6_rcv+0x397/0x810
[ 6287.450796][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6287.450796][   T73]      process_backlog+0x101/0x620
[ 6287.450796][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6287.450796][   T73]      net_rx_action+0x495/0xbe0
[ 6287.450796][   T73]      __do_softirq+0x1b5/0x7f6
[ 6287.450796][   T73] 
[ 6287.452687][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6287.452687][   T73]      netdev_get_by_index+0x5e/0x80
[ 6287.452687][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6287.452687][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6287.452687][   T73]      ip6_route_add+0x1c/0x140
[ 6287.452687][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6287.452687][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6287.452687][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6287.452687][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6287.452687][   T73]      netlink_rcv_skb+0x130/0x360
[ 6287.452687][   T73]      netlink_unicast+0x449/0x710
[ 6287.452687][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6287.452687][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6287.452687][   T73]      ___sys_sendmsg+0xee/0x170
[ 6287.452687][   T73]      __sys_sendmsg+0xcd/0x170
[ 6287.452687][   T73]      do_syscall_64+0xc6/0x1e0
[ 6287.452687][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6287.452687][   T73] 
[ 6287.454929][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6287.454929][   T73]      netdev_get_by_index+0x5e/0x80
[ 6287.454929][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6287.454929][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6287.454929][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6287.454929][   T73]      ipv6_add_addr+0x411/0x2000
[ 6287.454929][   T73]      inet6_addr_add+0x30e/0xa40
[ 6287.454929][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6287.454929][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6287.454929][   T73]      netlink_rcv_skb+0x130/0x360
[ 6287.454929][   T73]      netlink_unicast+0x449/0x710
[ 6287.454929][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6287.454929][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6287.454929][   T73]      ___sys_sendmsg+0xee/0x170
[ 6287.454929][   T73]      __sys_sendmsg+0xcd/0x170
[ 6287.454929][   T73]      do_syscall_64+0xc6/0x1e0
[ 6287.454929][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6287.454929][   T73] 
[ 6287.457173][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6287.457173][   T73]      netdev_get_by_index+0x5e/0x80
[ 6287.457173][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6287.457173][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6287.457173][   T73]      ip6_route_add+0x1c/0x140
[ 6287.457173][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6287.457173][   T73]      addrconf_add_dev+0xe2/0x170
[ 6287.457173][   T73]      inet6_addr_add+0x12f/0xa40
[ 6287.457173][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6287.457173][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6287.457173][   T73]      netlink_rcv_skb+0x130/0x360
[ 6287.457173][   T73]      netlink_unicast+0x449/0x710
[ 6287.457173][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6287.457173][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6287.457173][   T73]      ___sys_sendmsg+0xee/0x170
[ 6287.457173][   T73]      __sys_sendmsg+0xcd/0x170
[ 6287.457173][   T73]      do_syscall_64+0xc6/0x1e0
[ 6287.457173][   T73] 
[ 6287.459315][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6287.459315][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6287.459315][   T73]      ipv6_find_idev+0x102/0x170
[ 6287.459315][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6287.459315][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6287.459315][   T73]      netlink_rcv_skb+0x130/0x360
[ 6287.459315][   T73]      netlink_unicast+0x449/0x710
[ 6287.459315][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6287.459315][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6287.459315][   T73]      ___sys_sendmsg+0xee/0x170
[ 6287.459315][   T73]      __sys_sendmsg+0xcd/0x170
[ 6287.459315][   T73]      do_syscall_64+0xc6/0x1e0
[ 6287.459315][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6287.459315][   T73] 
[ 6287.466148][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6287.466148][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6287.466148][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6287.466148][   T73]      ipv6_find_idev+0x102/0x170
[ 6287.466148][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6287.466148][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6287.466148][   T73]      netlink_rcv_skb+0x130/0x360
[ 6287.466148][   T73]      netlink_unicast+0x449/0x710
[ 6287.466148][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6287.466148][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6287.466148][   T73]      ___sys_sendmsg+0xee/0x170
[ 6287.466148][   T73]      __sys_sendmsg+0xcd/0x170
[ 6287.466148][   T73]      do_syscall_64+0xc6/0x1e0
[ 6287.466148][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6287.466148][   T73] 
[ 6287.468070][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6287.468343][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6287.468343][   T73]      netdev_get_by_index+0x5e/0x80
[ 6287.468343][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6287.468343][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6287.468343][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6287.468343][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6287.468343][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6287.468343][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6287.468343][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6287.468343][   T73]      addrconf_dad_begin+0x310/0x670
[ 6287.468343][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6287.468343][   T73]      process_one_work+0x84d/0x18a0
[ 6287.468343][   T73]      worker_thread+0x587/0xd30
[ 6287.468343][   T73]      kthread+0x28a/0x350
[ 6287.468343][   T73]      ret_from_fork+0x31/0x70
[ 6287.468343][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6287.468343][   T73] 
[ 6287.471149][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6287.471149][   T73]      netdev_get_by_index+0x5e/0x80
[ 6287.471149][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6287.471149][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6287.471149][   T73]      ip6_route_add+0x1c/0x140
[ 6287.471149][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6287.471149][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6287.471149][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6287.471149][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6287.471149][   T73]      netlink_rcv_skb+0x130/0x360
[ 6287.471149][   T73]      netlink_unicast+0x449/0x710
[ 6287.471149][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6287.471149][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6287.471149][   T73]      ___sys_sendmsg+0xee/0x170
[ 6287.471149][   T73]      __sys_sendmsg+0xcd/0x170
[ 6287.471149][   T73]      do_syscall_64+0xc6/0x1e0
[ 6287.471149][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6287.471149][   T73] 
[ 6287.473311][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6287.473311][   T73]      netdev_get_by_index+0x5e/0x80
[ 6287.473311][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6287.473311][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6287.473311][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6287.473311][   T73]      ipv6_add_addr+0x411/0x2000
[ 6287.473311][   T73]      inet6_addr_add+0x30e/0xa40
[ 6287.473311][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6287.473311][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6287.473311][   T73]      netlink_rcv_skb+0x130/0x360
[ 6287.473311][   T73]      netlink_unicast+0x449/0x710
[ 6287.473311][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6287.473311][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6287.473311][   T73]      ___sys_sendmsg+0xee/0x170
[ 6287.473311][   T73]      __sys_sendmsg+0xcd/0x170
[ 6287.473311][   T73]      do_syscall_64+0xc6/0x1e0
[ 6287.473311][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6287.473311][   T73] 
[ 6287.475549][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6287.475549][   T73]      netdev_get_by_index+0x5e/0x80
[ 6287.475549][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6287.475549][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6287.475549][   T73]      ip6_route_add+0x1c/0x140
[ 6287.475549][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6287.475549][   T73]      addrconf_add_dev+0xe2/0x170
[ 6287.475549][   T73]      inet6_addr_add+0x12f/0xa40
[ 6287.475549][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6287.475549][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6287.475549][   T73]      netlink_rcv_skb+0x130/0x360
[ 6287.475549][   T73]      netlink_unicast+0x449/0x710
[ 6287.475549][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6287.475549][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6287.475549][   T73]      ___sys_sendmsg+0xee/0x170
[ 6287.475549][   T73]      __sys_sendmsg+0xcd/0x170
[ 6287.475549][   T73]      do_syscall_64+0xc6/0x1e0
[ 6287.475549][   T73] 
[ 6287.477794][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6287.477794][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6287.477794][   T73]      ipv6_find_idev+0x102/0x170
[ 6287.477794][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6287.477794][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6287.477794][   T73]      netlink_rcv_skb+0x130/0x360
[ 6287.477794][   T73]      netlink_unicast+0x449/0x710
[ 6287.477794][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6287.477794][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6287.477794][   T73]      ___sys_sendmsg+0xee/0x170
[ 6287.477794][   T73]      __sys_sendmsg+0xcd/0x170
[ 6287.477794][   T73]      do_syscall_64+0xc6/0x1e0
[ 6287.477794][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6287.477794][   T73] 
[ 6287.479500][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6287.479500][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6287.479500][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6287.479500][   T73]      ipv6_find_idev+0x102/0x170
[ 6287.479500][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6287.479500][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6287.479500][   T73]      netlink_rcv_skb+0x130/0x360
[ 6287.479500][   T73]      netlink_unicast+0x449/0x710
[ 6287.479500][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6287.479500][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6287.479500][   T73]      ___sys_sendmsg+0xee/0x170
[ 6287.479500][   T73]      __sys_sendmsg+0xcd/0x170
[ 6287.479500][   T73]      do_syscall_64+0xc6/0x1e0
[ 6287.479500][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6287.479500][   T73] 
[ 6297.719773][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6297.720547][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6297.720547][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6297.720547][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6297.720547][   T73]      fib6_nh_init+0xa22/0x1580
[ 6297.720547][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6297.720547][   T73]      ip6_route_add+0x1c/0x140
[ 6297.720547][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6297.720547][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6297.720547][   T73]      netlink_rcv_skb+0x130/0x360
[ 6297.720547][   T73]      netlink_unicast+0x449/0x710
[ 6297.720547][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6297.720547][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6297.720547][   T73]      ___sys_sendmsg+0xee/0x170
[ 6297.720547][   T73]      __sys_sendmsg+0xcd/0x170
[ 6297.720547][   T73]      do_syscall_64+0xc6/0x1e0
[ 6297.720547][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6297.720547][   T73] 
[ 6297.722909][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6297.722909][   T73]      dst_init+0x84/0x4a0
[ 6297.722909][   T73]      dst_alloc+0x97/0x150
[ 6297.722909][   T73]      ip6_dst_alloc+0x23/0x90
[ 6297.722909][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6297.722909][   T73]      ip6_pol_route+0x56f/0x840
[ 6297.722909][   T73]      fib6_rule_lookup+0x456/0x630
[ 6297.722909][   T73]      ip6_route_input+0x59c/0xa50
[ 6297.722909][   T73]      ipv6_rcv+0x397/0x810
[ 6297.722909][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6297.722909][   T73]      process_backlog+0x101/0x620
[ 6297.722909][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6297.722909][   T73]      net_rx_action+0x495/0xbe0
[ 6297.722909][   T73]      __do_softirq+0x1b5/0x7f6
[ 6297.722909][   T73] 
[ 6297.724640][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6297.724640][   T73]      netdev_get_by_index+0x5e/0x80
[ 6297.724640][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6297.724640][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6297.724640][   T73]      ip6_route_add+0x1c/0x140
[ 6297.724640][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6297.724640][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6297.724640][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6297.724640][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6297.724640][   T73]      netlink_rcv_skb+0x130/0x360
[ 6297.724640][   T73]      netlink_unicast+0x449/0x710
[ 6297.724640][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6297.724640][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6297.724640][   T73]      ___sys_sendmsg+0xee/0x170
[ 6297.724640][   T73]      __sys_sendmsg+0xcd/0x170
[ 6297.724640][   T73]      do_syscall_64+0xc6/0x1e0
[ 6297.724640][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6297.724640][   T73] 
[ 6297.726732][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6297.726732][   T73]      netdev_get_by_index+0x5e/0x80
[ 6297.726732][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6297.726732][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6297.726732][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6297.726732][   T73]      ipv6_add_addr+0x411/0x2000
[ 6297.726732][   T73]      inet6_addr_add+0x30e/0xa40
[ 6297.726732][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6297.726732][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6297.726732][   T73]      netlink_rcv_skb+0x130/0x360
[ 6297.726732][   T73]      netlink_unicast+0x449/0x710
[ 6297.726732][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6297.726732][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6297.726732][   T73]      ___sys_sendmsg+0xee/0x170
[ 6297.726732][   T73]      __sys_sendmsg+0xcd/0x170
[ 6297.726732][   T73]      do_syscall_64+0xc6/0x1e0
[ 6297.726732][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6297.726732][   T73] 
[ 6297.728793][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6297.728793][   T73]      netdev_get_by_index+0x5e/0x80
[ 6297.728793][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6297.728793][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6297.728793][   T73]      ip6_route_add+0x1c/0x140
[ 6297.728793][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6297.728793][   T73]      addrconf_add_dev+0xe2/0x170
[ 6297.728793][   T73]      inet6_addr_add+0x12f/0xa40
[ 6297.728793][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6297.728793][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6297.728793][   T73]      netlink_rcv_skb+0x130/0x360
[ 6297.728793][   T73]      netlink_unicast+0x449/0x710
[ 6297.728793][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6297.728793][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6297.728793][   T73]      ___sys_sendmsg+0xee/0x170
[ 6297.728793][   T73]      __sys_sendmsg+0xcd/0x170
[ 6297.728793][   T73]      do_syscall_64+0xc6/0x1e0
[ 6297.728793][   T73] 
[ 6297.730811][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6297.730811][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6297.730811][   T73]      ipv6_find_idev+0x102/0x170
[ 6297.730811][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6297.730811][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6297.730811][   T73]      netlink_rcv_skb+0x130/0x360
[ 6297.730811][   T73]      netlink_unicast+0x449/0x710
[ 6297.730811][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6297.730811][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6297.730811][   T73]      ___sys_sendmsg+0xee/0x170
[ 6297.730811][   T73]      __sys_sendmsg+0xcd/0x170
[ 6297.730811][   T73]      do_syscall_64+0xc6/0x1e0
[ 6297.730811][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6297.730811][   T73] 
[ 6297.732389][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6297.732389][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6297.732389][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6297.732389][   T73]      ipv6_find_idev+0x102/0x170
[ 6297.732389][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6297.732389][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6297.732389][   T73]      netlink_rcv_skb+0x130/0x360
[ 6297.732389][   T73]      netlink_unicast+0x449/0x710
[ 6297.732389][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6297.732389][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6297.732389][   T73]      ___sys_sendmsg+0xee/0x170
[ 6297.732389][   T73]      __sys_sendmsg+0xcd/0x170
[ 6297.732389][   T73]      do_syscall_64+0xc6/0x1e0
[ 6297.732389][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6297.732389][   T73] 
[ 6297.734180][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6297.734509][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6297.734509][   T73]      netdev_get_by_index+0x5e/0x80
[ 6297.734509][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6297.734509][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6297.734509][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6297.734509][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6297.734509][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6297.734509][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6297.734509][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6297.734509][   T73]      addrconf_dad_begin+0x310/0x670
[ 6297.734509][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6297.734509][   T73]      process_one_work+0x84d/0x18a0
[ 6297.734509][   T73]      worker_thread+0x587/0xd30
[ 6297.734509][   T73]      kthread+0x28a/0x350
[ 6297.734509][   T73]      ret_from_fork+0x31/0x70
[ 6297.734509][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6297.734509][   T73] 
[ 6297.738256][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6297.738256][   T73]      netdev_get_by_index+0x5e/0x80
[ 6297.738256][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6297.738256][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6297.738256][   T73]      ip6_route_add+0x1c/0x140
[ 6297.738256][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6297.738256][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6297.738256][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6297.738256][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6297.738256][   T73]      netlink_rcv_skb+0x130/0x360
[ 6297.738256][   T73]      netlink_unicast+0x449/0x710
[ 6297.738256][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6297.738256][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6297.738256][   T73]      ___sys_sendmsg+0xee/0x170
[ 6297.738256][   T73]      __sys_sendmsg+0xcd/0x170
[ 6297.738256][   T73]      do_syscall_64+0xc6/0x1e0
[ 6297.738256][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6297.738256][   T73] 
[ 6297.745281][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6297.745281][   T73]      netdev_get_by_index+0x5e/0x80
[ 6297.745281][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6297.745281][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6297.745281][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6297.745281][   T73]      ipv6_add_addr+0x411/0x2000
[ 6297.745281][   T73]      inet6_addr_add+0x30e/0xa40
[ 6297.745281][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6297.745281][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6297.745281][   T73]      netlink_rcv_skb+0x130/0x360
[ 6297.745281][   T73]      netlink_unicast+0x449/0x710
[ 6297.745281][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6297.745281][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6297.745281][   T73]      ___sys_sendmsg+0xee/0x170
[ 6297.745281][   T73]      __sys_sendmsg+0xcd/0x170
[ 6297.745281][   T73]      do_syscall_64+0xc6/0x1e0
[ 6297.745281][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6297.745281][   T73] 
[ 6297.748696][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6297.748696][   T73]      netdev_get_by_index+0x5e/0x80
[ 6297.748696][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6297.748696][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6297.748696][   T73]      ip6_route_add+0x1c/0x140
[ 6297.748696][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6297.748696][   T73]      addrconf_add_dev+0xe2/0x170
[ 6297.748696][   T73]      inet6_addr_add+0x12f/0xa40
[ 6297.748696][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6297.748696][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6297.748696][   T73]      netlink_rcv_skb+0x130/0x360
[ 6297.748696][   T73]      netlink_unicast+0x449/0x710
[ 6297.748696][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6297.748696][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6297.748696][   T73]      ___sys_sendmsg+0xee/0x170
[ 6297.748696][   T73]      __sys_sendmsg+0xcd/0x170
[ 6297.748696][   T73]      do_syscall_64+0xc6/0x1e0
[ 6297.748696][   T73] 
[ 6297.751348][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6297.751348][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6297.751348][   T73]      ipv6_find_idev+0x102/0x170
[ 6297.751348][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6297.751348][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6297.751348][   T73]      netlink_rcv_skb+0x130/0x360
[ 6297.751348][   T73]      netlink_unicast+0x449/0x710
[ 6297.751348][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6297.751348][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6297.751348][   T73]      ___sys_sendmsg+0xee/0x170
[ 6297.751348][   T73]      __sys_sendmsg+0xcd/0x170
[ 6297.751348][   T73]      do_syscall_64+0xc6/0x1e0
[ 6297.751348][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6297.751348][   T73] 
[ 6297.753511][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6297.753511][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6297.753511][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6297.753511][   T73]      ipv6_find_idev+0x102/0x170
[ 6297.753511][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6297.753511][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6297.753511][   T73]      netlink_rcv_skb+0x130/0x360
[ 6297.753511][   T73]      netlink_unicast+0x449/0x710
[ 6297.753511][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6297.753511][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6297.753511][   T73]      ___sys_sendmsg+0xee/0x170
[ 6297.753511][   T73]      __sys_sendmsg+0xcd/0x170
[ 6297.753511][   T73]      do_syscall_64+0xc6/0x1e0
[ 6297.753511][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6297.753511][   T73] 
[ 6297.756189][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6297.756626][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6297.756626][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6297.756626][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6297.756626][   T73]      fib6_nh_init+0xa22/0x1580
[ 6297.756626][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6297.756626][   T73]      ip6_route_add+0x1c/0x140
[ 6297.756626][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6297.756626][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6297.756626][   T73]      netlink_rcv_skb+0x130/0x360
[ 6297.756626][   T73]      netlink_unicast+0x449/0x710
[ 6297.756626][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6297.756626][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6297.756626][   T73]      ___sys_sendmsg+0xee/0x170
[ 6297.756626][   T73]      __sys_sendmsg+0xcd/0x170
[ 6297.756626][   T73]      do_syscall_64+0xc6/0x1e0
[ 6297.756626][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6297.756626][   T73] 
[ 6297.760031][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6297.760031][   T73]      dst_init+0x84/0x4a0
[ 6297.760031][   T73]      dst_alloc+0x97/0x150
[ 6297.760031][   T73]      ip6_dst_alloc+0x23/0x90
[ 6297.760031][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6297.760031][   T73]      ip6_pol_route+0x56f/0x840
[ 6297.760031][   T73]      fib6_rule_lookup+0x456/0x630
[ 6297.760031][   T73]      ip6_route_input+0x59c/0xa50
[ 6297.760031][   T73]      ipv6_rcv+0x397/0x810
[ 6297.760031][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6297.760031][   T73]      process_backlog+0x101/0x620
[ 6297.760031][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6297.760031][   T73]      net_rx_action+0x495/0xbe0
[ 6297.760031][   T73]      __do_softirq+0x1b5/0x7f6
[ 6297.760031][   T73] 
[ 6297.762807][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6297.762807][   T73]      netdev_get_by_index+0x5e/0x80
[ 6297.762807][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6297.762807][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6297.762807][   T73]      ip6_route_add+0x1c/0x140
[ 6297.762807][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6297.762807][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6297.762807][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6297.762807][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6297.762807][   T73]      netlink_rcv_skb+0x130/0x360
[ 6297.762807][   T73]      netlink_unicast+0x449/0x710
[ 6297.762807][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6297.762807][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6297.762807][   T73]      ___sys_sendmsg+0xee/0x170
[ 6297.762807][   T73]      __sys_sendmsg+0xcd/0x170
[ 6297.762807][   T73]      do_syscall_64+0xc6/0x1e0
[ 6297.762807][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6297.762807][   T73] 
[ 6297.766824][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6297.766824][   T73]      netdev_get_by_index+0x5e/0x80
[ 6297.766824][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6297.766824][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6297.766824][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6297.766824][   T73]      ipv6_add_addr+0x411/0x2000
[ 6297.766824][   T73]      inet6_addr_add+0x30e/0xa40
[ 6297.766824][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6297.766824][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6297.766824][   T73]      netlink_rcv_skb+0x130/0x360
[ 6297.766824][   T73]      netlink_unicast+0x449/0x710
[ 6297.766824][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6297.766824][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6297.766824][   T73]      ___sys_sendmsg+0xee/0x170
[ 6297.766824][   T73]      __sys_sendmsg+0xcd/0x170
[ 6297.766824][   T73]      do_syscall_64+0xc6/0x1e0
[ 6297.766824][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6297.766824][   T73] 
[ 6297.770332][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6297.770332][   T73]      netdev_get_by_index+0x5e/0x80
[ 6297.770332][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6297.770332][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6297.770332][   T73]      ip6_route_add+0x1c/0x140
[ 6297.770332][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6297.770332][   T73]      addrconf_add_dev+0xe2/0x170
[ 6297.770332][   T73]      inet6_addr_add+0x12f/0xa40
[ 6297.770332][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6297.770332][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6297.770332][   T73]      netlink_rcv_skb+0x130/0x360
[ 6297.770332][   T73]      netlink_unicast+0x449/0x710
[ 6297.770332][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6297.770332][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6297.770332][   T73]      ___sys_sendmsg+0xee/0x170
[ 6297.770332][   T73]      __sys_sendmsg+0xcd/0x170
[ 6297.770332][   T73]      do_syscall_64+0xc6/0x1e0
[ 6297.770332][   T73] 
[ 6297.772826][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6297.772826][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6297.772826][   T73]      ipv6_find_idev+0x102/0x170
[ 6297.772826][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6297.772826][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6297.772826][   T73]      netlink_rcv_skb+0x130/0x360
[ 6297.772826][   T73]      netlink_unicast+0x449/0x710
[ 6297.772826][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6297.772826][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6297.772826][   T73]      ___sys_sendmsg+0xee/0x170
[ 6297.772826][   T73]      __sys_sendmsg+0xcd/0x170
[ 6297.772826][   T73]      do_syscall_64+0xc6/0x1e0
[ 6297.772826][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6297.772826][   T73] 
[ 6297.774740][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6297.774740][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6297.774740][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6297.774740][   T73]      ipv6_find_idev+0x102/0x170
[ 6297.774740][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6297.774740][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6297.774740][   T73]      netlink_rcv_skb+0x130/0x360
[ 6297.774740][   T73]      netlink_unicast+0x449/0x710
[ 6297.774740][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6297.774740][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6297.774740][   T73]      ___sys_sendmsg+0xee/0x170
[ 6297.774740][   T73]      __sys_sendmsg+0xcd/0x170
[ 6297.774740][   T73]      do_syscall_64+0xc6/0x1e0
[ 6297.774740][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6297.774740][   T73] 
[ 6297.776787][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6297.777160][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6297.777160][   T73]      netdev_get_by_index+0x5e/0x80
[ 6297.777160][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6297.777160][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6297.777160][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6297.777160][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6297.777160][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6297.777160][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6297.777160][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6297.777160][   T73]      addrconf_dad_begin+0x310/0x670
[ 6297.777160][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6297.777160][   T73]      process_one_work+0x84d/0x18a0
[ 6297.777160][   T73]      worker_thread+0x587/0xd30
[ 6297.777160][   T73]      kthread+0x28a/0x350
[ 6297.777160][   T73]      ret_from_fork+0x31/0x70
[ 6297.777160][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6297.777160][   T73] 
[ 6297.779493][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6297.779493][   T73]      netdev_get_by_index+0x5e/0x80
[ 6297.779493][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6297.779493][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6297.779493][   T73]      ip6_route_add+0x1c/0x140
[ 6297.779493][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6297.779493][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6297.779493][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6297.779493][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6297.779493][   T73]      netlink_rcv_skb+0x130/0x360
[ 6297.779493][   T73]      netlink_unicast+0x449/0x710
[ 6297.779493][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6297.779493][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6297.779493][   T73]      ___sys_sendmsg+0xee/0x170
[ 6297.779493][   T73]      __sys_sendmsg+0xcd/0x170
[ 6297.779493][   T73]      do_syscall_64+0xc6/0x1e0
[ 6297.779493][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6297.779493][   T73] 
[ 6297.782073][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6297.782073][   T73]      netdev_get_by_index+0x5e/0x80
[ 6297.782073][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6297.782073][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6297.782073][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6297.782073][   T73]      ipv6_add_addr+0x411/0x2000
[ 6297.782073][   T73]      inet6_addr_add+0x30e/0xa40
[ 6297.782073][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6297.782073][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6297.782073][   T73]      netlink_rcv_skb+0x130/0x360
[ 6297.782073][   T73]      netlink_unicast+0x449/0x710
[ 6297.782073][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6297.782073][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6297.782073][   T73]      ___sys_sendmsg+0xee/0x170
[ 6297.782073][   T73]      __sys_sendmsg+0xcd/0x170
[ 6297.782073][   T73]      do_syscall_64+0xc6/0x1e0
[ 6297.782073][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6297.782073][   T73] 
[ 6297.784527][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6297.784527][   T73]      netdev_get_by_index+0x5e/0x80
[ 6297.784527][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6297.784527][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6297.784527][   T73]      ip6_route_add+0x1c/0x140
[ 6297.784527][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6297.784527][   T73]      addrconf_add_dev+0xe2/0x170
[ 6297.784527][   T73]      inet6_addr_add+0x12f/0xa40
[ 6297.784527][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6297.784527][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6297.784527][   T73]      netlink_rcv_skb+0x130/0x360
[ 6297.784527][   T73]      netlink_unicast+0x449/0x710
[ 6297.784527][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6297.784527][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6297.784527][   T73]      ___sys_sendmsg+0xee/0x170
[ 6297.784527][   T73]      __sys_sendmsg+0xcd/0x170
[ 6297.784527][   T73]      do_syscall_64+0xc6/0x1e0
[ 6297.784527][   T73] 
[ 6297.786942][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6297.786942][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6297.786942][   T73]      ipv6_find_idev+0x102/0x170
[ 6297.786942][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6297.786942][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6297.786942][   T73]      netlink_rcv_skb+0x130/0x360
[ 6297.786942][   T73]      netlink_unicast+0x449/0x710
[ 6297.786942][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6297.786942][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6297.786942][   T73]      ___sys_sendmsg+0xee/0x170
[ 6297.786942][   T73]      __sys_sendmsg+0xcd/0x170
[ 6297.786942][   T73]      do_syscall_64+0xc6/0x1e0
[ 6297.786942][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6297.786942][   T73] 
[ 6297.788762][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6297.788762][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6297.788762][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6297.788762][   T73]      ipv6_find_idev+0x102/0x170
[ 6297.788762][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6297.788762][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6297.788762][   T73]      netlink_rcv_skb+0x130/0x360
[ 6297.788762][   T73]      netlink_unicast+0x449/0x710
[ 6297.788762][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6297.788762][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6297.788762][   T73]      ___sys_sendmsg+0xee/0x170
[ 6297.788762][   T73]      __sys_sendmsg+0xcd/0x170
[ 6297.788762][   T73]      do_syscall_64+0xc6/0x1e0
[ 6297.788762][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6297.788762][   T73] 
[ 6307.839778][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6307.840226][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6307.840226][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6307.840226][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6307.840226][   T73]      fib6_nh_init+0xa22/0x1580
[ 6307.840226][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6307.840226][   T73]      ip6_route_add+0x1c/0x140
[ 6307.840226][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6307.840226][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6307.840226][   T73]      netlink_rcv_skb+0x130/0x360
[ 6307.840226][   T73]      netlink_unicast+0x449/0x710
[ 6307.840226][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6307.840226][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6307.840226][   T73]      ___sys_sendmsg+0xee/0x170
[ 6307.840226][   T73]      __sys_sendmsg+0xcd/0x170
[ 6307.840226][   T73]      do_syscall_64+0xc6/0x1e0
[ 6307.840226][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6307.840226][   T73] 
[ 6307.842122][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6307.842122][   T73]      dst_init+0x84/0x4a0
[ 6307.842122][   T73]      dst_alloc+0x97/0x150
[ 6307.842122][   T73]      ip6_dst_alloc+0x23/0x90
[ 6307.842122][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6307.842122][   T73]      ip6_pol_route+0x56f/0x840
[ 6307.842122][   T73]      fib6_rule_lookup+0x456/0x630
[ 6307.842122][   T73]      ip6_route_input+0x59c/0xa50
[ 6307.842122][   T73]      ipv6_rcv+0x397/0x810
[ 6307.842122][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6307.842122][   T73]      process_backlog+0x101/0x620
[ 6307.842122][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6307.842122][   T73]      net_rx_action+0x495/0xbe0
[ 6307.842122][   T73]      __do_softirq+0x1b5/0x7f6
[ 6307.842122][   T73] 
[ 6307.843763][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6307.843763][   T73]      netdev_get_by_index+0x5e/0x80
[ 6307.843763][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6307.843763][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6307.843763][   T73]      ip6_route_add+0x1c/0x140
[ 6307.843763][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6307.843763][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6307.843763][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6307.843763][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6307.843763][   T73]      netlink_rcv_skb+0x130/0x360
[ 6307.843763][   T73]      netlink_unicast+0x449/0x710
[ 6307.843763][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6307.843763][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6307.843763][   T73]      ___sys_sendmsg+0xee/0x170
[ 6307.843763][   T73]      __sys_sendmsg+0xcd/0x170
[ 6307.843763][   T73]      do_syscall_64+0xc6/0x1e0
[ 6307.843763][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6307.843763][   T73] 
[ 6307.845762][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6307.845762][   T73]      netdev_get_by_index+0x5e/0x80
[ 6307.845762][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6307.845762][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6307.845762][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6307.845762][   T73]      ipv6_add_addr+0x411/0x2000
[ 6307.845762][   T73]      inet6_addr_add+0x30e/0xa40
[ 6307.845762][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6307.845762][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6307.845762][   T73]      netlink_rcv_skb+0x130/0x360
[ 6307.845762][   T73]      netlink_unicast+0x449/0x710
[ 6307.845762][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6307.845762][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6307.845762][   T73]      ___sys_sendmsg+0xee/0x170
[ 6307.845762][   T73]      __sys_sendmsg+0xcd/0x170
[ 6307.845762][   T73]      do_syscall_64+0xc6/0x1e0
[ 6307.845762][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6307.845762][   T73] 
[ 6307.847758][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6307.847758][   T73]      netdev_get_by_index+0x5e/0x80
[ 6307.847758][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6307.847758][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6307.847758][   T73]      ip6_route_add+0x1c/0x140
[ 6307.847758][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6307.847758][   T73]      addrconf_add_dev+0xe2/0x170
[ 6307.847758][   T73]      inet6_addr_add+0x12f/0xa40
[ 6307.847758][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6307.847758][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6307.847758][   T73]      netlink_rcv_skb+0x130/0x360
[ 6307.847758][   T73]      netlink_unicast+0x449/0x710
[ 6307.847758][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6307.847758][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6307.847758][   T73]      ___sys_sendmsg+0xee/0x170
[ 6307.847758][   T73]      __sys_sendmsg+0xcd/0x170
[ 6307.847758][   T73]      do_syscall_64+0xc6/0x1e0
[ 6307.847758][   T73] 
[ 6307.849712][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6307.849712][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6307.849712][   T73]      ipv6_find_idev+0x102/0x170
[ 6307.849712][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6307.849712][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6307.849712][   T73]      netlink_rcv_skb+0x130/0x360
[ 6307.849712][   T73]      netlink_unicast+0x449/0x710
[ 6307.849712][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6307.849712][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6307.849712][   T73]      ___sys_sendmsg+0xee/0x170
[ 6307.849712][   T73]      __sys_sendmsg+0xcd/0x170
[ 6307.849712][   T73]      do_syscall_64+0xc6/0x1e0
[ 6307.849712][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6307.849712][   T73] 
[ 6307.851243][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6307.851243][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6307.851243][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6307.851243][   T73]      ipv6_find_idev+0x102/0x170
[ 6307.851243][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6307.851243][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6307.851243][   T73]      netlink_rcv_skb+0x130/0x360
[ 6307.851243][   T73]      netlink_unicast+0x449/0x710
[ 6307.851243][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6307.851243][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6307.851243][   T73]      ___sys_sendmsg+0xee/0x170
[ 6307.851243][   T73]      __sys_sendmsg+0xcd/0x170
[ 6307.851243][   T73]      do_syscall_64+0xc6/0x1e0
[ 6307.851243][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6307.851243][   T73] 
[ 6307.852948][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6307.853229][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6307.853229][   T73]      netdev_get_by_index+0x5e/0x80
[ 6307.853229][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6307.853229][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6307.853229][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6307.853229][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6307.853229][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6307.853229][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6307.853229][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6307.853229][   T73]      addrconf_dad_begin+0x310/0x670
[ 6307.853229][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6307.853229][   T73]      process_one_work+0x84d/0x18a0
[ 6307.853229][   T73]      worker_thread+0x587/0xd30
[ 6307.853229][   T73]      kthread+0x28a/0x350
[ 6307.853229][   T73]      ret_from_fork+0x31/0x70
[ 6307.853229][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6307.853229][   T73] 
[ 6307.855135][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6307.855135][   T73]      netdev_get_by_index+0x5e/0x80
[ 6307.855135][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6307.855135][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6307.855135][   T73]      ip6_route_add+0x1c/0x140
[ 6307.855135][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6307.855135][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6307.855135][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6307.855135][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6307.855135][   T73]      netlink_rcv_skb+0x130/0x360
[ 6307.855135][   T73]      netlink_unicast+0x449/0x710
[ 6307.855135][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6307.855135][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6307.855135][   T73]      ___sys_sendmsg+0xee/0x170
[ 6307.855135][   T73]      __sys_sendmsg+0xcd/0x170
[ 6307.855135][   T73]      do_syscall_64+0xc6/0x1e0
[ 6307.855135][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6307.855135][   T73] 
[ 6307.857140][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6307.857140][   T73]      netdev_get_by_index+0x5e/0x80
[ 6307.857140][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6307.857140][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6307.857140][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6307.857140][   T73]      ipv6_add_addr+0x411/0x2000
[ 6307.857140][   T73]      inet6_addr_add+0x30e/0xa40
[ 6307.857140][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6307.857140][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6307.857140][   T73]      netlink_rcv_skb+0x130/0x360
[ 6307.857140][   T73]      netlink_unicast+0x449/0x710
[ 6307.857140][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6307.857140][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6307.857140][   T73]      ___sys_sendmsg+0xee/0x170
[ 6307.857140][   T73]      __sys_sendmsg+0xcd/0x170
[ 6307.857140][   T73]      do_syscall_64+0xc6/0x1e0
[ 6307.857140][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6307.857140][   T73] 
[ 6307.859125][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6307.859125][   T73]      netdev_get_by_index+0x5e/0x80
[ 6307.859125][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6307.859125][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6307.859125][   T73]      ip6_route_add+0x1c/0x140
[ 6307.859125][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6307.859125][   T73]      addrconf_add_dev+0xe2/0x170
[ 6307.859125][   T73]      inet6_addr_add+0x12f/0xa40
[ 6307.859125][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6307.859125][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6307.859125][   T73]      netlink_rcv_skb+0x130/0x360
[ 6307.859125][   T73]      netlink_unicast+0x449/0x710
[ 6307.859125][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6307.859125][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6307.859125][   T73]      ___sys_sendmsg+0xee/0x170
[ 6307.859125][   T73]      __sys_sendmsg+0xcd/0x170
[ 6307.859125][   T73]      do_syscall_64+0xc6/0x1e0
[ 6307.859125][   T73] 
[ 6307.861073][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6307.861073][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6307.861073][   T73]      ipv6_find_idev+0x102/0x170
[ 6307.861073][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6307.861073][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6307.861073][   T73]      netlink_rcv_skb+0x130/0x360
[ 6307.861073][   T73]      netlink_unicast+0x449/0x710
[ 6307.861073][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6307.861073][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6307.861073][   T73]      ___sys_sendmsg+0xee/0x170
[ 6307.861073][   T73]      __sys_sendmsg+0xcd/0x170
[ 6307.861073][   T73]      do_syscall_64+0xc6/0x1e0
[ 6307.861073][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6307.861073][   T73] 
[ 6307.862603][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6307.862603][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6307.862603][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6307.862603][   T73]      ipv6_find_idev+0x102/0x170
[ 6307.862603][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6307.862603][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6307.862603][   T73]      netlink_rcv_skb+0x130/0x360
[ 6307.862603][   T73]      netlink_unicast+0x449/0x710
[ 6307.862603][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6307.862603][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6307.862603][   T73]      ___sys_sendmsg+0xee/0x170
[ 6307.862603][   T73]      __sys_sendmsg+0xcd/0x170
[ 6307.862603][   T73]      do_syscall_64+0xc6/0x1e0
[ 6307.862603][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6307.862603][   T73] 
[ 6307.864265][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6307.864529][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6307.864529][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6307.864529][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6307.864529][   T73]      fib6_nh_init+0xa22/0x1580
[ 6307.864529][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6307.864529][   T73]      ip6_route_add+0x1c/0x140
[ 6307.864529][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6307.864529][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6307.864529][   T73]      netlink_rcv_skb+0x130/0x360
[ 6307.864529][   T73]      netlink_unicast+0x449/0x710
[ 6307.864529][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6307.864529][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6307.864529][   T73]      ___sys_sendmsg+0xee/0x170
[ 6307.864529][   T73]      __sys_sendmsg+0xcd/0x170
[ 6307.864529][   T73]      do_syscall_64+0xc6/0x1e0
[ 6307.864529][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6307.864529][   T73] 
[ 6307.866626][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6307.866626][   T73]      dst_init+0x84/0x4a0
[ 6307.866626][   T73]      dst_alloc+0x97/0x150
[ 6307.866626][   T73]      ip6_dst_alloc+0x23/0x90
[ 6307.866626][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6307.866626][   T73]      ip6_pol_route+0x56f/0x840
[ 6307.866626][   T73]      fib6_rule_lookup+0x456/0x630
[ 6307.866626][   T73]      ip6_route_input+0x59c/0xa50
[ 6307.866626][   T73]      ipv6_rcv+0x397/0x810
[ 6307.866626][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6307.866626][   T73]      process_backlog+0x101/0x620
[ 6307.866626][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6307.866626][   T73]      net_rx_action+0x495/0xbe0
[ 6307.866626][   T73]      __do_softirq+0x1b5/0x7f6
[ 6307.866626][   T73] 
[ 6307.868449][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6307.868449][   T73]      netdev_get_by_index+0x5e/0x80
[ 6307.868449][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6307.868449][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6307.868449][   T73]      ip6_route_add+0x1c/0x140
[ 6307.868449][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6307.868449][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6307.868449][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6307.868449][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6307.868449][   T73]      netlink_rcv_skb+0x130/0x360
[ 6307.868449][   T73]      netlink_unicast+0x449/0x710
[ 6307.868449][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6307.868449][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6307.868449][   T73]      ___sys_sendmsg+0xee/0x170
[ 6307.868449][   T73]      __sys_sendmsg+0xcd/0x170
[ 6307.868449][   T73]      do_syscall_64+0xc6/0x1e0
[ 6307.868449][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6307.868449][   T73] 
[ 6307.870693][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6307.870693][   T73]      netdev_get_by_index+0x5e/0x80
[ 6307.870693][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6307.870693][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6307.870693][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6307.870693][   T73]      ipv6_add_addr+0x411/0x2000
[ 6307.870693][   T73]      inet6_addr_add+0x30e/0xa40
[ 6307.870693][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6307.870693][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6307.870693][   T73]      netlink_rcv_skb+0x130/0x360
[ 6307.870693][   T73]      netlink_unicast+0x449/0x710
[ 6307.870693][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6307.870693][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6307.870693][   T73]      ___sys_sendmsg+0xee/0x170
[ 6307.870693][   T73]      __sys_sendmsg+0xcd/0x170
[ 6307.870693][   T73]      do_syscall_64+0xc6/0x1e0
[ 6307.870693][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6307.870693][   T73] 
[ 6307.872949][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6307.872949][   T73]      netdev_get_by_index+0x5e/0x80
[ 6307.872949][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6307.872949][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6307.872949][   T73]      ip6_route_add+0x1c/0x140
[ 6307.872949][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6307.872949][   T73]      addrconf_add_dev+0xe2/0x170
[ 6307.872949][   T73]      inet6_addr_add+0x12f/0xa40
[ 6307.872949][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6307.872949][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6307.872949][   T73]      netlink_rcv_skb+0x130/0x360
[ 6307.872949][   T73]      netlink_unicast+0x449/0x710
[ 6307.872949][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6307.872949][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6307.872949][   T73]      ___sys_sendmsg+0xee/0x170
[ 6307.872949][   T73]      __sys_sendmsg+0xcd/0x170
[ 6307.872949][   T73]      do_syscall_64+0xc6/0x1e0
[ 6307.872949][   T73] 
[ 6307.875083][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6307.875083][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6307.875083][   T73]      ipv6_find_idev+0x102/0x170
[ 6307.875083][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6307.875083][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6307.875083][   T73]      netlink_rcv_skb+0x130/0x360
[ 6307.875083][   T73]      netlink_unicast+0x449/0x710
[ 6307.875083][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6307.875083][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6307.875083][   T73]      ___sys_sendmsg+0xee/0x170
[ 6307.875083][   T73]      __sys_sendmsg+0xcd/0x170
[ 6307.875083][   T73]      do_syscall_64+0xc6/0x1e0
[ 6307.875083][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6307.875083][   T73] 
[ 6307.876864][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6307.876864][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6307.876864][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6307.876864][   T73]      ipv6_find_idev+0x102/0x170
[ 6307.876864][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6307.876864][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6307.876864][   T73]      netlink_rcv_skb+0x130/0x360
[ 6307.876864][   T73]      netlink_unicast+0x449/0x710
[ 6307.876864][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6307.876864][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6307.876864][   T73]      ___sys_sendmsg+0xee/0x170
[ 6307.876864][   T73]      __sys_sendmsg+0xcd/0x170
[ 6307.876864][   T73]      do_syscall_64+0xc6/0x1e0
[ 6307.876864][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6307.876864][   T73] 
[ 6307.878780][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6307.879053][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6307.879053][   T73]      netdev_get_by_index+0x5e/0x80
[ 6307.879053][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6307.879053][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6307.879053][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6307.879053][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6307.879053][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6307.879053][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6307.879053][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6307.879053][   T73]      addrconf_dad_begin+0x310/0x670
[ 6307.879053][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6307.879053][   T73]      process_one_work+0x84d/0x18a0
[ 6307.879053][   T73]      worker_thread+0x587/0xd30
[ 6307.879053][   T73]      kthread+0x28a/0x350
[ 6307.879053][   T73]      ret_from_fork+0x31/0x70
[ 6307.879053][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6307.879053][   T73] 
[ 6307.881200][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6307.881200][   T73]      netdev_get_by_index+0x5e/0x80
[ 6307.881200][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6307.881200][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6307.881200][   T73]      ip6_route_add+0x1c/0x140
[ 6307.881200][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6307.881200][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6307.881200][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6307.881200][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6307.881200][   T73]      netlink_rcv_skb+0x130/0x360
[ 6307.881200][   T73]      netlink_unicast+0x449/0x710
[ 6307.881200][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6307.881200][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6307.881200][   T73]      ___sys_sendmsg+0xee/0x170
[ 6307.881200][   T73]      __sys_sendmsg+0xcd/0x170
[ 6307.881200][   T73]      do_syscall_64+0xc6/0x1e0
[ 6307.881200][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6307.881200][   T73] 
[ 6307.883356][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6307.883356][   T73]      netdev_get_by_index+0x5e/0x80
[ 6307.883356][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6307.883356][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6307.883356][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6307.883356][   T73]      ipv6_add_addr+0x411/0x2000
[ 6307.883356][   T73]      inet6_addr_add+0x30e/0xa40
[ 6307.883356][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6307.883356][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6307.883356][   T73]      netlink_rcv_skb+0x130/0x360
[ 6307.883356][   T73]      netlink_unicast+0x449/0x710
[ 6307.883356][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6307.883356][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6307.883356][   T73]      ___sys_sendmsg+0xee/0x170
[ 6307.883356][   T73]      __sys_sendmsg+0xcd/0x170
[ 6307.883356][   T73]      do_syscall_64+0xc6/0x1e0
[ 6307.883356][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6307.883356][   T73] 
[ 6307.885586][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6307.885586][   T73]      netdev_get_by_index+0x5e/0x80
[ 6307.885586][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6307.885586][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6307.885586][   T73]      ip6_route_add+0x1c/0x140
[ 6307.885586][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6307.885586][   T73]      addrconf_add_dev+0xe2/0x170
[ 6307.885586][   T73]      inet6_addr_add+0x12f/0xa40
[ 6307.885586][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6307.885586][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6307.885586][   T73]      netlink_rcv_skb+0x130/0x360
[ 6307.885586][   T73]      netlink_unicast+0x449/0x710
[ 6307.885586][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6307.885586][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6307.885586][   T73]      ___sys_sendmsg+0xee/0x170
[ 6307.885586][   T73]      __sys_sendmsg+0xcd/0x170
[ 6307.885586][   T73]      do_syscall_64+0xc6/0x1e0
[ 6307.885586][   T73] 
[ 6307.887848][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6307.887848][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6307.887848][   T73]      ipv6_find_idev+0x102/0x170
[ 6307.887848][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6307.887848][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6307.887848][   T73]      netlink_rcv_skb+0x130/0x360
[ 6307.887848][   T73]      netlink_unicast+0x449/0x710
[ 6307.887848][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6307.887848][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6307.887848][   T73]      ___sys_sendmsg+0xee/0x170
[ 6307.887848][   T73]      __sys_sendmsg+0xcd/0x170
[ 6307.887848][   T73]      do_syscall_64+0xc6/0x1e0
[ 6307.887848][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6307.887848][   T73] 
[ 6307.889556][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6307.889556][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6307.889556][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6307.889556][   T73]      ipv6_find_idev+0x102/0x170
[ 6307.889556][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6307.889556][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6307.889556][   T73]      netlink_rcv_skb+0x130/0x360
[ 6307.889556][   T73]      netlink_unicast+0x449/0x710
[ 6307.889556][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6307.889556][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6307.889556][   T73]      ___sys_sendmsg+0xee/0x170
[ 6307.889556][   T73]      __sys_sendmsg+0xcd/0x170
[ 6307.889556][   T73]      do_syscall_64+0xc6/0x1e0
[ 6307.889556][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6307.889556][   T73] 
[ 6318.015684][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6318.016168][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6318.016168][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6318.016168][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6318.016168][   T73]      fib6_nh_init+0xa22/0x1580
[ 6318.016168][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6318.016168][   T73]      ip6_route_add+0x1c/0x140
[ 6318.016168][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6318.016168][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6318.016168][   T73]      netlink_rcv_skb+0x130/0x360
[ 6318.016168][   T73]      netlink_unicast+0x449/0x710
[ 6318.016168][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6318.016168][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6318.016168][   T73]      ___sys_sendmsg+0xee/0x170
[ 6318.016168][   T73]      __sys_sendmsg+0xcd/0x170
[ 6318.016168][   T73]      do_syscall_64+0xc6/0x1e0
[ 6318.016168][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6318.016168][   T73] 
[ 6318.018089][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6318.018089][   T73]      dst_init+0x84/0x4a0
[ 6318.018089][   T73]      dst_alloc+0x97/0x150
[ 6318.018089][   T73]      ip6_dst_alloc+0x23/0x90
[ 6318.018089][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6318.018089][   T73]      ip6_pol_route+0x56f/0x840
[ 6318.018089][   T73]      fib6_rule_lookup+0x456/0x630
[ 6318.018089][   T73]      ip6_route_input+0x59c/0xa50
[ 6318.018089][   T73]      ipv6_rcv+0x397/0x810
[ 6318.018089][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6318.018089][   T73]      process_backlog+0x101/0x620
[ 6318.018089][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6318.018089][   T73]      net_rx_action+0x495/0xbe0
[ 6318.018089][   T73]      __do_softirq+0x1b5/0x7f6
[ 6318.018089][   T73] 
[ 6318.019748][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6318.019748][   T73]      netdev_get_by_index+0x5e/0x80
[ 6318.019748][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6318.019748][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6318.019748][   T73]      ip6_route_add+0x1c/0x140
[ 6318.019748][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6318.019748][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6318.019748][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6318.019748][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6318.019748][   T73]      netlink_rcv_skb+0x130/0x360
[ 6318.019748][   T73]      netlink_unicast+0x449/0x710
[ 6318.019748][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6318.019748][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6318.019748][   T73]      ___sys_sendmsg+0xee/0x170
[ 6318.019748][   T73]      __sys_sendmsg+0xcd/0x170
[ 6318.019748][   T73]      do_syscall_64+0xc6/0x1e0
[ 6318.019748][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6318.019748][   T73] 
[ 6318.021777][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6318.021777][   T73]      netdev_get_by_index+0x5e/0x80
[ 6318.021777][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6318.021777][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6318.021777][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6318.021777][   T73]      ipv6_add_addr+0x411/0x2000
[ 6318.021777][   T73]      inet6_addr_add+0x30e/0xa40
[ 6318.021777][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6318.021777][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6318.021777][   T73]      netlink_rcv_skb+0x130/0x360
[ 6318.021777][   T73]      netlink_unicast+0x449/0x710
[ 6318.021777][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6318.021777][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6318.021777][   T73]      ___sys_sendmsg+0xee/0x170
[ 6318.021777][   T73]      __sys_sendmsg+0xcd/0x170
[ 6318.021777][   T73]      do_syscall_64+0xc6/0x1e0
[ 6318.021777][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6318.021777][   T73] 
[ 6318.023776][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6318.023776][   T73]      netdev_get_by_index+0x5e/0x80
[ 6318.023776][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6318.023776][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6318.023776][   T73]      ip6_route_add+0x1c/0x140
[ 6318.023776][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6318.023776][   T73]      addrconf_add_dev+0xe2/0x170
[ 6318.023776][   T73]      inet6_addr_add+0x12f/0xa40
[ 6318.023776][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6318.023776][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6318.023776][   T73]      netlink_rcv_skb+0x130/0x360
[ 6318.023776][   T73]      netlink_unicast+0x449/0x710
[ 6318.023776][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6318.023776][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6318.023776][   T73]      ___sys_sendmsg+0xee/0x170
[ 6318.023776][   T73]      __sys_sendmsg+0xcd/0x170
[ 6318.023776][   T73]      do_syscall_64+0xc6/0x1e0
[ 6318.023776][   T73] 
[ 6318.025765][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6318.025765][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6318.025765][   T73]      ipv6_find_idev+0x102/0x170
[ 6318.025765][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6318.025765][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6318.025765][   T73]      netlink_rcv_skb+0x130/0x360
[ 6318.025765][   T73]      netlink_unicast+0x449/0x710
[ 6318.025765][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6318.025765][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6318.025765][   T73]      ___sys_sendmsg+0xee/0x170
[ 6318.025765][   T73]      __sys_sendmsg+0xcd/0x170
[ 6318.025765][   T73]      do_syscall_64+0xc6/0x1e0
[ 6318.025765][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6318.025765][   T73] 
[ 6318.027307][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6318.027307][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6318.027307][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6318.027307][   T73]      ipv6_find_idev+0x102/0x170
[ 6318.027307][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6318.027307][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6318.027307][   T73]      netlink_rcv_skb+0x130/0x360
[ 6318.027307][   T73]      netlink_unicast+0x449/0x710
[ 6318.027307][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6318.027307][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6318.027307][   T73]      ___sys_sendmsg+0xee/0x170
[ 6318.027307][   T73]      __sys_sendmsg+0xcd/0x170
[ 6318.027307][   T73]      do_syscall_64+0xc6/0x1e0
[ 6318.027307][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6318.027307][   T73] 
[ 6318.028988][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6318.029264][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6318.029264][   T73]      netdev_get_by_index+0x5e/0x80
[ 6318.029264][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6318.029264][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6318.029264][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6318.029264][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6318.029264][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6318.029264][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6318.029264][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6318.029264][   T73]      addrconf_dad_begin+0x310/0x670
[ 6318.029264][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6318.029264][   T73]      process_one_work+0x84d/0x18a0
[ 6318.029264][   T73]      worker_thread+0x587/0xd30
[ 6318.029264][   T73]      kthread+0x28a/0x350
[ 6318.029264][   T73]      ret_from_fork+0x31/0x70
[ 6318.029264][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6318.029264][   T73] 
[ 6318.031179][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6318.031179][   T73]      netdev_get_by_index+0x5e/0x80
[ 6318.031179][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6318.031179][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6318.031179][   T73]      ip6_route_add+0x1c/0x140
[ 6318.031179][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6318.031179][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6318.031179][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6318.031179][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6318.031179][   T73]      netlink_rcv_skb+0x130/0x360
[ 6318.031179][   T73]      netlink_unicast+0x449/0x710
[ 6318.031179][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6318.031179][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6318.031179][   T73]      ___sys_sendmsg+0xee/0x170
[ 6318.031179][   T73]      __sys_sendmsg+0xcd/0x170
[ 6318.031179][   T73]      do_syscall_64+0xc6/0x1e0
[ 6318.031179][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6318.031179][   T73] 
[ 6318.033186][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6318.033186][   T73]      netdev_get_by_index+0x5e/0x80
[ 6318.033186][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6318.033186][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6318.033186][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6318.033186][   T73]      ipv6_add_addr+0x411/0x2000
[ 6318.033186][   T73]      inet6_addr_add+0x30e/0xa40
[ 6318.033186][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6318.033186][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6318.033186][   T73]      netlink_rcv_skb+0x130/0x360
[ 6318.033186][   T73]      netlink_unicast+0x449/0x710
[ 6318.033186][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6318.033186][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6318.033186][   T73]      ___sys_sendmsg+0xee/0x170
[ 6318.033186][   T73]      __sys_sendmsg+0xcd/0x170
[ 6318.033186][   T73]      do_syscall_64+0xc6/0x1e0
[ 6318.033186][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6318.033186][   T73] 
[ 6318.035186][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6318.035186][   T73]      netdev_get_by_index+0x5e/0x80
[ 6318.035186][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6318.035186][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6318.035186][   T73]      ip6_route_add+0x1c/0x140
[ 6318.035186][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6318.035186][   T73]      addrconf_add_dev+0xe2/0x170
[ 6318.035186][   T73]      inet6_addr_add+0x12f/0xa40
[ 6318.035186][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6318.035186][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6318.035186][   T73]      netlink_rcv_skb+0x130/0x360
[ 6318.035186][   T73]      netlink_unicast+0x449/0x710
[ 6318.035186][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6318.035186][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6318.035186][   T73]      ___sys_sendmsg+0xee/0x170
[ 6318.035186][   T73]      __sys_sendmsg+0xcd/0x170
[ 6318.035186][   T73]      do_syscall_64+0xc6/0x1e0
[ 6318.035186][   T73] 
[ 6318.037144][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6318.037144][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6318.037144][   T73]      ipv6_find_idev+0x102/0x170
[ 6318.037144][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6318.037144][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6318.037144][   T73]      netlink_rcv_skb+0x130/0x360
[ 6318.037144][   T73]      netlink_unicast+0x449/0x710
[ 6318.037144][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6318.037144][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6318.037144][   T73]      ___sys_sendmsg+0xee/0x170
[ 6318.037144][   T73]      __sys_sendmsg+0xcd/0x170
[ 6318.037144][   T73]      do_syscall_64+0xc6/0x1e0
[ 6318.037144][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6318.037144][   T73] 
[ 6318.038673][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6318.038673][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6318.038673][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6318.038673][   T73]      ipv6_find_idev+0x102/0x170
[ 6318.038673][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6318.038673][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6318.038673][   T73]      netlink_rcv_skb+0x130/0x360
[ 6318.038673][   T73]      netlink_unicast+0x449/0x710
[ 6318.038673][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6318.038673][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6318.038673][   T73]      ___sys_sendmsg+0xee/0x170
[ 6318.038673][   T73]      __sys_sendmsg+0xcd/0x170
[ 6318.038673][   T73]      do_syscall_64+0xc6/0x1e0
[ 6318.038673][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6318.038673][   T73] 
[ 6318.040340][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6318.040611][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6318.040611][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6318.040611][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6318.040611][   T73]      fib6_nh_init+0xa22/0x1580
[ 6318.040611][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6318.040611][   T73]      ip6_route_add+0x1c/0x140
[ 6318.040611][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6318.040611][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6318.040611][   T73]      netlink_rcv_skb+0x130/0x360
[ 6318.040611][   T73]      netlink_unicast+0x449/0x710
[ 6318.040611][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6318.040611][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6318.040611][   T73]      ___sys_sendmsg+0xee/0x170
[ 6318.040611][   T73]      __sys_sendmsg+0xcd/0x170
[ 6318.040611][   T73]      do_syscall_64+0xc6/0x1e0
[ 6318.040611][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6318.040611][   T73] 
[ 6318.042673][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6318.042673][   T73]      dst_init+0x84/0x4a0
[ 6318.042673][   T73]      dst_alloc+0x97/0x150
[ 6318.042673][   T73]      ip6_dst_alloc+0x23/0x90
[ 6318.042673][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6318.042673][   T73]      ip6_pol_route+0x56f/0x840
[ 6318.042673][   T73]      fib6_rule_lookup+0x456/0x630
[ 6318.042673][   T73]      ip6_route_input+0x59c/0xa50
[ 6318.042673][   T73]      ipv6_rcv+0x397/0x810
[ 6318.042673][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6318.042673][   T73]      process_backlog+0x101/0x620
[ 6318.042673][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6318.042673][   T73]      net_rx_action+0x495/0xbe0
[ 6318.042673][   T73]      __do_softirq+0x1b5/0x7f6
[ 6318.042673][   T73] 
[ 6318.044444][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6318.044444][   T73]      netdev_get_by_index+0x5e/0x80
[ 6318.044444][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6318.044444][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6318.044444][   T73]      ip6_route_add+0x1c/0x140
[ 6318.044444][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6318.044444][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6318.044444][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6318.044444][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6318.044444][   T73]      netlink_rcv_skb+0x130/0x360
[ 6318.044444][   T73]      netlink_unicast+0x449/0x710
[ 6318.044444][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6318.044444][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6318.044444][   T73]      ___sys_sendmsg+0xee/0x170
[ 6318.044444][   T73]      __sys_sendmsg+0xcd/0x170
[ 6318.044444][   T73]      do_syscall_64+0xc6/0x1e0
[ 6318.044444][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6318.044444][   T73] 
[ 6318.046675][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6318.046675][   T73]      netdev_get_by_index+0x5e/0x80
[ 6318.046675][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6318.046675][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6318.046675][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6318.046675][   T73]      ipv6_add_addr+0x411/0x2000
[ 6318.046675][   T73]      inet6_addr_add+0x30e/0xa40
[ 6318.046675][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6318.046675][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6318.046675][   T73]      netlink_rcv_skb+0x130/0x360
[ 6318.046675][   T73]      netlink_unicast+0x449/0x710
[ 6318.046675][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6318.046675][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6318.046675][   T73]      ___sys_sendmsg+0xee/0x170
[ 6318.046675][   T73]      __sys_sendmsg+0xcd/0x170
[ 6318.046675][   T73]      do_syscall_64+0xc6/0x1e0
[ 6318.046675][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6318.046675][   T73] 
[ 6318.048918][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6318.048918][   T73]      netdev_get_by_index+0x5e/0x80
[ 6318.048918][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6318.048918][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6318.048918][   T73]      ip6_route_add+0x1c/0x140
[ 6318.048918][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6318.048918][   T73]      addrconf_add_dev+0xe2/0x170
[ 6318.048918][   T73]      inet6_addr_add+0x12f/0xa40
[ 6318.048918][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6318.048918][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6318.048918][   T73]      netlink_rcv_skb+0x130/0x360
[ 6318.048918][   T73]      netlink_unicast+0x449/0x710
[ 6318.048918][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6318.048918][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6318.048918][   T73]      ___sys_sendmsg+0xee/0x170
[ 6318.048918][   T73]      __sys_sendmsg+0xcd/0x170
[ 6318.048918][   T73]      do_syscall_64+0xc6/0x1e0
[ 6318.048918][   T73] 
[ 6318.051123][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6318.051123][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6318.051123][   T73]      ipv6_find_idev+0x102/0x170
[ 6318.051123][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6318.051123][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6318.051123][   T73]      netlink_rcv_skb+0x130/0x360
[ 6318.051123][   T73]      netlink_unicast+0x449/0x710
[ 6318.051123][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6318.051123][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6318.051123][   T73]      ___sys_sendmsg+0xee/0x170
[ 6318.051123][   T73]      __sys_sendmsg+0xcd/0x170
[ 6318.051123][   T73]      do_syscall_64+0xc6/0x1e0
[ 6318.051123][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6318.051123][   T73] 
[ 6318.052837][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6318.052837][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6318.052837][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6318.052837][   T73]      ipv6_find_idev+0x102/0x170
[ 6318.052837][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6318.052837][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6318.052837][   T73]      netlink_rcv_skb+0x130/0x360
[ 6318.052837][   T73]      netlink_unicast+0x449/0x710
[ 6318.052837][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6318.052837][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6318.052837][   T73]      ___sys_sendmsg+0xee/0x170
[ 6318.052837][   T73]      __sys_sendmsg+0xcd/0x170
[ 6318.052837][   T73]      do_syscall_64+0xc6/0x1e0
[ 6318.052837][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6318.052837][   T73] 
[ 6318.054759][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6318.055027][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6318.055027][   T73]      netdev_get_by_index+0x5e/0x80
[ 6318.055027][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6318.055027][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6318.055027][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6318.055027][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6318.055027][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6318.055027][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6318.055027][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6318.055027][   T73]      addrconf_dad_begin+0x310/0x670
[ 6318.055027][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6318.055027][   T73]      process_one_work+0x84d/0x18a0
[ 6318.055027][   T73]      worker_thread+0x587/0xd30
[ 6318.055027][   T73]      kthread+0x28a/0x350
[ 6318.055027][   T73]      ret_from_fork+0x31/0x70
[ 6318.055027][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6318.055027][   T73] 
[ 6318.057193][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6318.057193][   T73]      netdev_get_by_index+0x5e/0x80
[ 6318.057193][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6318.057193][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6318.057193][   T73]      ip6_route_add+0x1c/0x140
[ 6318.057193][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6318.057193][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6318.057193][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6318.057193][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6318.057193][   T73]      netlink_rcv_skb+0x130/0x360
[ 6318.057193][   T73]      netlink_unicast+0x449/0x710
[ 6318.057193][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6318.057193][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6318.057193][   T73]      ___sys_sendmsg+0xee/0x170
[ 6318.057193][   T73]      __sys_sendmsg+0xcd/0x170
[ 6318.057193][   T73]      do_syscall_64+0xc6/0x1e0
[ 6318.057193][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6318.057193][   T73] 
[ 6318.059422][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6318.059422][   T73]      netdev_get_by_index+0x5e/0x80
[ 6318.059422][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6318.059422][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6318.059422][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6318.059422][   T73]      ipv6_add_addr+0x411/0x2000
[ 6318.059422][   T73]      inet6_addr_add+0x30e/0xa40
[ 6318.059422][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6318.059422][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6318.059422][   T73]      netlink_rcv_skb+0x130/0x360
[ 6318.059422][   T73]      netlink_unicast+0x449/0x710
[ 6318.059422][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6318.059422][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6318.059422][   T73]      ___sys_sendmsg+0xee/0x170
[ 6318.059422][   T73]      __sys_sendmsg+0xcd/0x170
[ 6318.059422][   T73]      do_syscall_64+0xc6/0x1e0
[ 6318.059422][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6318.059422][   T73] 
[ 6318.061659][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6318.061659][   T73]      netdev_get_by_index+0x5e/0x80
[ 6318.061659][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6318.061659][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6318.061659][   T73]      ip6_route_add+0x1c/0x140
[ 6318.061659][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6318.061659][   T73]      addrconf_add_dev+0xe2/0x170
[ 6318.061659][   T73]      inet6_addr_add+0x12f/0xa40
[ 6318.061659][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6318.061659][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6318.061659][   T73]      netlink_rcv_skb+0x130/0x360
[ 6318.061659][   T73]      netlink_unicast+0x449/0x710
[ 6318.061659][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6318.061659][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6318.061659][   T73]      ___sys_sendmsg+0xee/0x170
[ 6318.061659][   T73]      __sys_sendmsg+0xcd/0x170
[ 6318.061659][   T73]      do_syscall_64+0xc6/0x1e0
[ 6318.061659][   T73] 
[ 6318.063864][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6318.063864][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6318.063864][   T73]      ipv6_find_idev+0x102/0x170
[ 6318.063864][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6318.063864][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6318.063864][   T73]      netlink_rcv_skb+0x130/0x360
[ 6318.063864][   T73]      netlink_unicast+0x449/0x710
[ 6318.063864][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6318.063864][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6318.063864][   T73]      ___sys_sendmsg+0xee/0x170
[ 6318.063864][   T73]      __sys_sendmsg+0xcd/0x170
[ 6318.063864][   T73]      do_syscall_64+0xc6/0x1e0
[ 6318.063864][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6318.063864][   T73] 
[ 6318.065586][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6318.065586][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6318.065586][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6318.065586][   T73]      ipv6_find_idev+0x102/0x170
[ 6318.065586][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6318.065586][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6318.065586][   T73]      netlink_rcv_skb+0x130/0x360
[ 6318.065586][   T73]      netlink_unicast+0x449/0x710
[ 6318.065586][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6318.065586][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6318.065586][   T73]      ___sys_sendmsg+0xee/0x170
[ 6318.065586][   T73]      __sys_sendmsg+0xcd/0x170
[ 6318.065586][   T73]      do_syscall_64+0xc6/0x1e0
[ 6318.065586][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6318.065586][   T73] 
[ 6328.303683][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6328.304137][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6328.304137][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6328.304137][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6328.304137][   T73]      fib6_nh_init+0xa22/0x1580
[ 6328.304137][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6328.304137][   T73]      ip6_route_add+0x1c/0x140
[ 6328.304137][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6328.304137][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6328.304137][   T73]      netlink_rcv_skb+0x130/0x360
[ 6328.304137][   T73]      netlink_unicast+0x449/0x710
[ 6328.304137][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6328.304137][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6328.304137][   T73]      ___sys_sendmsg+0xee/0x170
[ 6328.304137][   T73]      __sys_sendmsg+0xcd/0x170
[ 6328.304137][   T73]      do_syscall_64+0xc6/0x1e0
[ 6328.304137][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6328.304137][   T73] 
[ 6328.306050][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6328.306050][   T73]      dst_init+0x84/0x4a0
[ 6328.306050][   T73]      dst_alloc+0x97/0x150
[ 6328.306050][   T73]      ip6_dst_alloc+0x23/0x90
[ 6328.306050][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6328.306050][   T73]      ip6_pol_route+0x56f/0x840
[ 6328.306050][   T73]      fib6_rule_lookup+0x456/0x630
[ 6328.306050][   T73]      ip6_route_input+0x59c/0xa50
[ 6328.306050][   T73]      ipv6_rcv+0x397/0x810
[ 6328.306050][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6328.306050][   T73]      process_backlog+0x101/0x620
[ 6328.306050][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6328.306050][   T73]      net_rx_action+0x495/0xbe0
[ 6328.306050][   T73]      __do_softirq+0x1b5/0x7f6
[ 6328.306050][   T73] 
[ 6328.307699][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6328.307699][   T73]      netdev_get_by_index+0x5e/0x80
[ 6328.307699][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6328.307699][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6328.307699][   T73]      ip6_route_add+0x1c/0x140
[ 6328.307699][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6328.307699][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6328.307699][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6328.307699][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6328.307699][   T73]      netlink_rcv_skb+0x130/0x360
[ 6328.307699][   T73]      netlink_unicast+0x449/0x710
[ 6328.307699][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6328.307699][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6328.307699][   T73]      ___sys_sendmsg+0xee/0x170
[ 6328.307699][   T73]      __sys_sendmsg+0xcd/0x170
[ 6328.307699][   T73]      do_syscall_64+0xc6/0x1e0
[ 6328.307699][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6328.307699][   T73] 
[ 6328.309697][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6328.309697][   T73]      netdev_get_by_index+0x5e/0x80
[ 6328.309697][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6328.309697][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6328.309697][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6328.309697][   T73]      ipv6_add_addr+0x411/0x2000
[ 6328.309697][   T73]      inet6_addr_add+0x30e/0xa40
[ 6328.309697][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6328.309697][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6328.309697][   T73]      netlink_rcv_skb+0x130/0x360
[ 6328.309697][   T73]      netlink_unicast+0x449/0x710
[ 6328.309697][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6328.309697][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6328.309697][   T73]      ___sys_sendmsg+0xee/0x170
[ 6328.309697][   T73]      __sys_sendmsg+0xcd/0x170
[ 6328.309697][   T73]      do_syscall_64+0xc6/0x1e0
[ 6328.309697][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6328.309697][   T73] 
[ 6328.311689][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6328.311689][   T73]      netdev_get_by_index+0x5e/0x80
[ 6328.311689][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6328.311689][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6328.311689][   T73]      ip6_route_add+0x1c/0x140
[ 6328.311689][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6328.311689][   T73]      addrconf_add_dev+0xe2/0x170
[ 6328.311689][   T73]      inet6_addr_add+0x12f/0xa40
[ 6328.311689][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6328.311689][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6328.311689][   T73]      netlink_rcv_skb+0x130/0x360
[ 6328.311689][   T73]      netlink_unicast+0x449/0x710
[ 6328.311689][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6328.311689][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6328.311689][   T73]      ___sys_sendmsg+0xee/0x170
[ 6328.311689][   T73]      __sys_sendmsg+0xcd/0x170
[ 6328.311689][   T73]      do_syscall_64+0xc6/0x1e0
[ 6328.311689][   T73] 
[ 6328.313658][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6328.313658][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6328.313658][   T73]      ipv6_find_idev+0x102/0x170
[ 6328.313658][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6328.313658][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6328.313658][   T73]      netlink_rcv_skb+0x130/0x360
[ 6328.313658][   T73]      netlink_unicast+0x449/0x710
[ 6328.313658][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6328.313658][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6328.313658][   T73]      ___sys_sendmsg+0xee/0x170
[ 6328.313658][   T73]      __sys_sendmsg+0xcd/0x170
[ 6328.313658][   T73]      do_syscall_64+0xc6/0x1e0
[ 6328.313658][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6328.313658][   T73] 
[ 6328.315205][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6328.315205][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6328.315205][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6328.315205][   T73]      ipv6_find_idev+0x102/0x170
[ 6328.315205][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6328.315205][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6328.315205][   T73]      netlink_rcv_skb+0x130/0x360
[ 6328.315205][   T73]      netlink_unicast+0x449/0x710
[ 6328.315205][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6328.315205][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6328.315205][   T73]      ___sys_sendmsg+0xee/0x170
[ 6328.315205][   T73]      __sys_sendmsg+0xcd/0x170
[ 6328.315205][   T73]      do_syscall_64+0xc6/0x1e0
[ 6328.315205][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6328.315205][   T73] 
[ 6328.316887][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6328.317158][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6328.317158][   T73]      netdev_get_by_index+0x5e/0x80
[ 6328.317158][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6328.317158][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6328.317158][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6328.317158][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6328.317158][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6328.317158][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6328.317158][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6328.317158][   T73]      addrconf_dad_begin+0x310/0x670
[ 6328.317158][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6328.317158][   T73]      process_one_work+0x84d/0x18a0
[ 6328.317158][   T73]      worker_thread+0x587/0xd30
[ 6328.317158][   T73]      kthread+0x28a/0x350
[ 6328.317158][   T73]      ret_from_fork+0x31/0x70
[ 6328.317158][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6328.317158][   T73] 
[ 6328.319081][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6328.319081][   T73]      netdev_get_by_index+0x5e/0x80
[ 6328.319081][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6328.319081][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6328.319081][   T73]      ip6_route_add+0x1c/0x140
[ 6328.319081][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6328.319081][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6328.319081][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6328.319081][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6328.319081][   T73]      netlink_rcv_skb+0x130/0x360
[ 6328.319081][   T73]      netlink_unicast+0x449/0x710
[ 6328.319081][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6328.319081][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6328.319081][   T73]      ___sys_sendmsg+0xee/0x170
[ 6328.319081][   T73]      __sys_sendmsg+0xcd/0x170
[ 6328.319081][   T73]      do_syscall_64+0xc6/0x1e0
[ 6328.319081][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6328.319081][   T73] 
[ 6328.321074][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6328.321074][   T73]      netdev_get_by_index+0x5e/0x80
[ 6328.321074][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6328.321074][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6328.321074][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6328.321074][   T73]      ipv6_add_addr+0x411/0x2000
[ 6328.321074][   T73]      inet6_addr_add+0x30e/0xa40
[ 6328.321074][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6328.321074][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6328.321074][   T73]      netlink_rcv_skb+0x130/0x360
[ 6328.321074][   T73]      netlink_unicast+0x449/0x710
[ 6328.321074][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6328.321074][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6328.321074][   T73]      ___sys_sendmsg+0xee/0x170
[ 6328.321074][   T73]      __sys_sendmsg+0xcd/0x170
[ 6328.321074][   T73]      do_syscall_64+0xc6/0x1e0
[ 6328.321074][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6328.321074][   T73] 
[ 6328.323058][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6328.323058][   T73]      netdev_get_by_index+0x5e/0x80
[ 6328.323058][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6328.323058][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6328.323058][   T73]      ip6_route_add+0x1c/0x140
[ 6328.323058][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6328.323058][   T73]      addrconf_add_dev+0xe2/0x170
[ 6328.323058][   T73]      inet6_addr_add+0x12f/0xa40
[ 6328.323058][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6328.323058][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6328.323058][   T73]      netlink_rcv_skb+0x130/0x360
[ 6328.323058][   T73]      netlink_unicast+0x449/0x710
[ 6328.323058][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6328.323058][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6328.323058][   T73]      ___sys_sendmsg+0xee/0x170
[ 6328.323058][   T73]      __sys_sendmsg+0xcd/0x170
[ 6328.323058][   T73]      do_syscall_64+0xc6/0x1e0
[ 6328.323058][   T73] 
[ 6328.325024][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6328.325024][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6328.325024][   T73]      ipv6_find_idev+0x102/0x170
[ 6328.325024][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6328.325024][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6328.325024][   T73]      netlink_rcv_skb+0x130/0x360
[ 6328.325024][   T73]      netlink_unicast+0x449/0x710
[ 6328.325024][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6328.325024][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6328.325024][   T73]      ___sys_sendmsg+0xee/0x170
[ 6328.325024][   T73]      __sys_sendmsg+0xcd/0x170
[ 6328.325024][   T73]      do_syscall_64+0xc6/0x1e0
[ 6328.325024][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6328.325024][   T73] 
[ 6328.326568][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6328.326568][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6328.326568][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6328.326568][   T73]      ipv6_find_idev+0x102/0x170
[ 6328.326568][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6328.326568][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6328.326568][   T73]      netlink_rcv_skb+0x130/0x360
[ 6328.326568][   T73]      netlink_unicast+0x449/0x710
[ 6328.326568][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6328.326568][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6328.326568][   T73]      ___sys_sendmsg+0xee/0x170
[ 6328.326568][   T73]      __sys_sendmsg+0xcd/0x170
[ 6328.326568][   T73]      do_syscall_64+0xc6/0x1e0
[ 6328.326568][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6328.326568][   T73] 
[ 6328.328244][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6328.328515][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6328.328515][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6328.328515][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6328.328515][   T73]      fib6_nh_init+0xa22/0x1580
[ 6328.328515][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6328.328515][   T73]      ip6_route_add+0x1c/0x140
[ 6328.328515][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6328.328515][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6328.328515][   T73]      netlink_rcv_skb+0x130/0x360
[ 6328.328515][   T73]      netlink_unicast+0x449/0x710
[ 6328.328515][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6328.328515][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6328.328515][   T73]      ___sys_sendmsg+0xee/0x170
[ 6328.328515][   T73]      __sys_sendmsg+0xcd/0x170
[ 6328.328515][   T73]      do_syscall_64+0xc6/0x1e0
[ 6328.328515][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6328.328515][   T73] 
[ 6328.330602][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6328.330602][   T73]      dst_init+0x84/0x4a0
[ 6328.330602][   T73]      dst_alloc+0x97/0x150
[ 6328.330602][   T73]      ip6_dst_alloc+0x23/0x90
[ 6328.330602][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6328.330602][   T73]      ip6_pol_route+0x56f/0x840
[ 6328.330602][   T73]      fib6_rule_lookup+0x456/0x630
[ 6328.330602][   T73]      ip6_route_input+0x59c/0xa50
[ 6328.330602][   T73]      ipv6_rcv+0x397/0x810
[ 6328.330602][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6328.330602][   T73]      process_backlog+0x101/0x620
[ 6328.330602][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6328.330602][   T73]      net_rx_action+0x495/0xbe0
[ 6328.330602][   T73]      __do_softirq+0x1b5/0x7f6
[ 6328.330602][   T73] 
[ 6328.332428][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6328.332428][   T73]      netdev_get_by_index+0x5e/0x80
[ 6328.332428][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6328.332428][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6328.332428][   T73]      ip6_route_add+0x1c/0x140
[ 6328.332428][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6328.332428][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6328.332428][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6328.332428][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6328.332428][   T73]      netlink_rcv_skb+0x130/0x360
[ 6328.332428][   T73]      netlink_unicast+0x449/0x710
[ 6328.332428][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6328.332428][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6328.332428][   T73]      ___sys_sendmsg+0xee/0x170
[ 6328.332428][   T73]      __sys_sendmsg+0xcd/0x170
[ 6328.332428][   T73]      do_syscall_64+0xc6/0x1e0
[ 6328.332428][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6328.332428][   T73] 
[ 6328.334670][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6328.334670][   T73]      netdev_get_by_index+0x5e/0x80
[ 6328.334670][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6328.334670][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6328.334670][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6328.334670][   T73]      ipv6_add_addr+0x411/0x2000
[ 6328.334670][   T73]      inet6_addr_add+0x30e/0xa40
[ 6328.334670][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6328.334670][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6328.334670][   T73]      netlink_rcv_skb+0x130/0x360
[ 6328.334670][   T73]      netlink_unicast+0x449/0x710
[ 6328.334670][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6328.334670][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6328.334670][   T73]      ___sys_sendmsg+0xee/0x170
[ 6328.334670][   T73]      __sys_sendmsg+0xcd/0x170
[ 6328.334670][   T73]      do_syscall_64+0xc6/0x1e0
[ 6328.334670][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6328.334670][   T73] 
[ 6328.336796][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6328.336796][   T73]      netdev_get_by_index+0x5e/0x80
[ 6328.336796][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6328.336796][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6328.336796][   T73]      ip6_route_add+0x1c/0x140
[ 6328.336796][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6328.336796][   T73]      addrconf_add_dev+0xe2/0x170
[ 6328.336796][   T73]      inet6_addr_add+0x12f/0xa40
[ 6328.336796][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6328.336796][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6328.336796][   T73]      netlink_rcv_skb+0x130/0x360
[ 6328.336796][   T73]      netlink_unicast+0x449/0x710
[ 6328.336796][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6328.336796][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6328.336796][   T73]      ___sys_sendmsg+0xee/0x170
[ 6328.336796][   T73]      __sys_sendmsg+0xcd/0x170
[ 6328.336796][   T73]      do_syscall_64+0xc6/0x1e0
[ 6328.336796][   T73] 
[ 6328.339017][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6328.339017][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6328.339017][   T73]      ipv6_find_idev+0x102/0x170
[ 6328.339017][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6328.339017][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6328.339017][   T73]      netlink_rcv_skb+0x130/0x360
[ 6328.339017][   T73]      netlink_unicast+0x449/0x710
[ 6328.339017][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6328.339017][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6328.339017][   T73]      ___sys_sendmsg+0xee/0x170
[ 6328.339017][   T73]      __sys_sendmsg+0xcd/0x170
[ 6328.339017][   T73]      do_syscall_64+0xc6/0x1e0
[ 6328.339017][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6328.339017][   T73] 
[ 6328.340823][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6328.340823][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6328.340823][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6328.340823][   T73]      ipv6_find_idev+0x102/0x170
[ 6328.340823][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6328.340823][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6328.340823][   T73]      netlink_rcv_skb+0x130/0x360
[ 6328.340823][   T73]      netlink_unicast+0x449/0x710
[ 6328.340823][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6328.340823][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6328.340823][   T73]      ___sys_sendmsg+0xee/0x170
[ 6328.340823][   T73]      __sys_sendmsg+0xcd/0x170
[ 6328.340823][   T73]      do_syscall_64+0xc6/0x1e0
[ 6328.340823][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6328.340823][   T73] 
[ 6328.342764][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6328.343031][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6328.343031][   T73]      netdev_get_by_index+0x5e/0x80
[ 6328.343031][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6328.343031][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6328.343031][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6328.343031][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6328.343031][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6328.343031][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6328.343031][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6328.343031][   T73]      addrconf_dad_begin+0x310/0x670
[ 6328.343031][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6328.343031][   T73]      process_one_work+0x84d/0x18a0
[ 6328.343031][   T73]      worker_thread+0x587/0xd30
[ 6328.343031][   T73]      kthread+0x28a/0x350
[ 6328.343031][   T73]      ret_from_fork+0x31/0x70
[ 6328.343031][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6328.343031][   T73] 
[ 6328.345214][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6328.345214][   T73]      netdev_get_by_index+0x5e/0x80
[ 6328.345214][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6328.345214][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6328.345214][   T73]      ip6_route_add+0x1c/0x140
[ 6328.345214][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6328.345214][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6328.345214][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6328.345214][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6328.345214][   T73]      netlink_rcv_skb+0x130/0x360
[ 6328.345214][   T73]      netlink_unicast+0x449/0x710
[ 6328.345214][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6328.345214][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6328.345214][   T73]      ___sys_sendmsg+0xee/0x170
[ 6328.345214][   T73]      __sys_sendmsg+0xcd/0x170
[ 6328.345214][   T73]      do_syscall_64+0xc6/0x1e0
[ 6328.345214][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6328.345214][   T73] 
[ 6328.347406][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6328.347406][   T73]      netdev_get_by_index+0x5e/0x80
[ 6328.347406][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6328.347406][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6328.347406][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6328.347406][   T73]      ipv6_add_addr+0x411/0x2000
[ 6328.347406][   T73]      inet6_addr_add+0x30e/0xa40
[ 6328.347406][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6328.347406][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6328.347406][   T73]      netlink_rcv_skb+0x130/0x360
[ 6328.347406][   T73]      netlink_unicast+0x449/0x710
[ 6328.347406][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6328.347406][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6328.347406][   T73]      ___sys_sendmsg+0xee/0x170
[ 6328.347406][   T73]      __sys_sendmsg+0xcd/0x170
[ 6328.347406][   T73]      do_syscall_64+0xc6/0x1e0
[ 6328.347406][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6328.347406][   T73] 
[ 6328.349658][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6328.349658][   T73]      netdev_get_by_index+0x5e/0x80
[ 6328.349658][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6328.349658][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6328.349658][   T73]      ip6_route_add+0x1c/0x140
[ 6328.349658][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6328.349658][   T73]      addrconf_add_dev+0xe2/0x170
[ 6328.349658][   T73]      inet6_addr_add+0x12f/0xa40
[ 6328.349658][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6328.349658][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6328.349658][   T73]      netlink_rcv_skb+0x130/0x360
[ 6328.349658][   T73]      netlink_unicast+0x449/0x710
[ 6328.349658][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6328.349658][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6328.349658][   T73]      ___sys_sendmsg+0xee/0x170
[ 6328.349658][   T73]      __sys_sendmsg+0xcd/0x170
[ 6328.349658][   T73]      do_syscall_64+0xc6/0x1e0
[ 6328.349658][   T73] 
[ 6328.351946][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6328.351946][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6328.351946][   T73]      ipv6_find_idev+0x102/0x170
[ 6328.351946][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6328.351946][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6328.351946][   T73]      netlink_rcv_skb+0x130/0x360
[ 6328.351946][   T73]      netlink_unicast+0x449/0x710
[ 6328.351946][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6328.351946][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6328.351946][   T73]      ___sys_sendmsg+0xee/0x170
[ 6328.351946][   T73]      __sys_sendmsg+0xcd/0x170
[ 6328.351946][   T73]      do_syscall_64+0xc6/0x1e0
[ 6328.351946][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6328.351946][   T73] 
[ 6328.353678][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6328.353678][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6328.353678][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6328.353678][   T73]      ipv6_find_idev+0x102/0x170
[ 6328.353678][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6328.353678][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6328.353678][   T73]      netlink_rcv_skb+0x130/0x360
[ 6328.353678][   T73]      netlink_unicast+0x449/0x710
[ 6328.353678][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6328.353678][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6328.353678][   T73]      ___sys_sendmsg+0xee/0x170
[ 6328.353678][   T73]      __sys_sendmsg+0xcd/0x170
[ 6328.353678][   T73]      do_syscall_64+0xc6/0x1e0
[ 6328.353678][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6328.353678][   T73] 
[ 6338.591766][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6338.592222][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6338.592222][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6338.592222][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6338.592222][   T73]      fib6_nh_init+0xa22/0x1580
[ 6338.592222][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6338.592222][   T73]      ip6_route_add+0x1c/0x140
[ 6338.592222][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6338.592222][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6338.592222][   T73]      netlink_rcv_skb+0x130/0x360
[ 6338.592222][   T73]      netlink_unicast+0x449/0x710
[ 6338.592222][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6338.592222][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6338.592222][   T73]      ___sys_sendmsg+0xee/0x170
[ 6338.592222][   T73]      __sys_sendmsg+0xcd/0x170
[ 6338.592222][   T73]      do_syscall_64+0xc6/0x1e0
[ 6338.592222][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6338.592222][   T73] 
[ 6338.594105][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6338.594105][   T73]      dst_init+0x84/0x4a0
[ 6338.594105][   T73]      dst_alloc+0x97/0x150
[ 6338.594105][   T73]      ip6_dst_alloc+0x23/0x90
[ 6338.594105][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6338.594105][   T73]      ip6_pol_route+0x56f/0x840
[ 6338.594105][   T73]      fib6_rule_lookup+0x456/0x630
[ 6338.594105][   T73]      ip6_route_input+0x59c/0xa50
[ 6338.594105][   T73]      ipv6_rcv+0x397/0x810
[ 6338.594105][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6338.594105][   T73]      process_backlog+0x101/0x620
[ 6338.594105][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6338.594105][   T73]      net_rx_action+0x495/0xbe0
[ 6338.594105][   T73]      __do_softirq+0x1b5/0x7f6
[ 6338.594105][   T73] 
[ 6338.595753][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6338.595753][   T73]      netdev_get_by_index+0x5e/0x80
[ 6338.595753][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6338.595753][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6338.595753][   T73]      ip6_route_add+0x1c/0x140
[ 6338.595753][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6338.595753][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6338.595753][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6338.595753][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6338.595753][   T73]      netlink_rcv_skb+0x130/0x360
[ 6338.595753][   T73]      netlink_unicast+0x449/0x710
[ 6338.595753][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6338.595753][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6338.595753][   T73]      ___sys_sendmsg+0xee/0x170
[ 6338.595753][   T73]      __sys_sendmsg+0xcd/0x170
[ 6338.595753][   T73]      do_syscall_64+0xc6/0x1e0
[ 6338.595753][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6338.595753][   T73] 
[ 6338.597753][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6338.597753][   T73]      netdev_get_by_index+0x5e/0x80
[ 6338.597753][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6338.597753][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6338.597753][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6338.597753][   T73]      ipv6_add_addr+0x411/0x2000
[ 6338.597753][   T73]      inet6_addr_add+0x30e/0xa40
[ 6338.597753][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6338.597753][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6338.597753][   T73]      netlink_rcv_skb+0x130/0x360
[ 6338.597753][   T73]      netlink_unicast+0x449/0x710
[ 6338.597753][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6338.597753][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6338.597753][   T73]      ___sys_sendmsg+0xee/0x170
[ 6338.597753][   T73]      __sys_sendmsg+0xcd/0x170
[ 6338.597753][   T73]      do_syscall_64+0xc6/0x1e0
[ 6338.597753][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6338.597753][   T73] 
[ 6338.599739][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6338.599739][   T73]      netdev_get_by_index+0x5e/0x80
[ 6338.599739][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6338.599739][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6338.599739][   T73]      ip6_route_add+0x1c/0x140
[ 6338.599739][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6338.599739][   T73]      addrconf_add_dev+0xe2/0x170
[ 6338.599739][   T73]      inet6_addr_add+0x12f/0xa40
[ 6338.599739][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6338.599739][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6338.599739][   T73]      netlink_rcv_skb+0x130/0x360
[ 6338.599739][   T73]      netlink_unicast+0x449/0x710
[ 6338.599739][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6338.599739][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6338.599739][   T73]      ___sys_sendmsg+0xee/0x170
[ 6338.599739][   T73]      __sys_sendmsg+0xcd/0x170
[ 6338.599739][   T73]      do_syscall_64+0xc6/0x1e0
[ 6338.599739][   T73] 
[ 6338.601690][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6338.601690][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6338.601690][   T73]      ipv6_find_idev+0x102/0x170
[ 6338.601690][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6338.601690][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6338.601690][   T73]      netlink_rcv_skb+0x130/0x360
[ 6338.601690][   T73]      netlink_unicast+0x449/0x710
[ 6338.601690][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6338.601690][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6338.601690][   T73]      ___sys_sendmsg+0xee/0x170
[ 6338.601690][   T73]      __sys_sendmsg+0xcd/0x170
[ 6338.601690][   T73]      do_syscall_64+0xc6/0x1e0
[ 6338.601690][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6338.601690][   T73] 
[ 6338.603258][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6338.603258][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6338.603258][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6338.603258][   T73]      ipv6_find_idev+0x102/0x170
[ 6338.603258][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6338.603258][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6338.603258][   T73]      netlink_rcv_skb+0x130/0x360
[ 6338.603258][   T73]      netlink_unicast+0x449/0x710
[ 6338.603258][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6338.603258][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6338.603258][   T73]      ___sys_sendmsg+0xee/0x170
[ 6338.603258][   T73]      __sys_sendmsg+0xcd/0x170
[ 6338.603258][   T73]      do_syscall_64+0xc6/0x1e0
[ 6338.603258][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6338.603258][   T73] 
[ 6338.604952][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6338.605246][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6338.605246][   T73]      netdev_get_by_index+0x5e/0x80
[ 6338.605246][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6338.605246][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6338.605246][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6338.605246][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6338.605246][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6338.605246][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6338.605246][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6338.605246][   T73]      addrconf_dad_begin+0x310/0x670
[ 6338.605246][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6338.605246][   T73]      process_one_work+0x84d/0x18a0
[ 6338.605246][   T73]      worker_thread+0x587/0xd30
[ 6338.605246][   T73]      kthread+0x28a/0x350
[ 6338.605246][   T73]      ret_from_fork+0x31/0x70
[ 6338.605246][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6338.605246][   T73] 
[ 6338.607153][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6338.607153][   T73]      netdev_get_by_index+0x5e/0x80
[ 6338.607153][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6338.607153][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6338.607153][   T73]      ip6_route_add+0x1c/0x140
[ 6338.607153][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6338.607153][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6338.607153][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6338.607153][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6338.607153][   T73]      netlink_rcv_skb+0x130/0x360
[ 6338.607153][   T73]      netlink_unicast+0x449/0x710
[ 6338.607153][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6338.607153][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6338.607153][   T73]      ___sys_sendmsg+0xee/0x170
[ 6338.607153][   T73]      __sys_sendmsg+0xcd/0x170
[ 6338.607153][   T73]      do_syscall_64+0xc6/0x1e0
[ 6338.607153][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6338.607153][   T73] 
[ 6338.609170][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6338.609170][   T73]      netdev_get_by_index+0x5e/0x80
[ 6338.609170][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6338.609170][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6338.609170][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6338.609170][   T73]      ipv6_add_addr+0x411/0x2000
[ 6338.609170][   T73]      inet6_addr_add+0x30e/0xa40
[ 6338.609170][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6338.609170][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6338.609170][   T73]      netlink_rcv_skb+0x130/0x360
[ 6338.609170][   T73]      netlink_unicast+0x449/0x710
[ 6338.609170][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6338.609170][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6338.609170][   T73]      ___sys_sendmsg+0xee/0x170
[ 6338.609170][   T73]      __sys_sendmsg+0xcd/0x170
[ 6338.609170][   T73]      do_syscall_64+0xc6/0x1e0
[ 6338.609170][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6338.609170][   T73] 
[ 6338.611168][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6338.611168][   T73]      netdev_get_by_index+0x5e/0x80
[ 6338.611168][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6338.611168][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6338.611168][   T73]      ip6_route_add+0x1c/0x140
[ 6338.611168][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6338.611168][   T73]      addrconf_add_dev+0xe2/0x170
[ 6338.611168][   T73]      inet6_addr_add+0x12f/0xa40
[ 6338.611168][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6338.611168][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6338.611168][   T73]      netlink_rcv_skb+0x130/0x360
[ 6338.611168][   T73]      netlink_unicast+0x449/0x710
[ 6338.611168][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6338.611168][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6338.611168][   T73]      ___sys_sendmsg+0xee/0x170
[ 6338.611168][   T73]      __sys_sendmsg+0xcd/0x170
[ 6338.611168][   T73]      do_syscall_64+0xc6/0x1e0
[ 6338.611168][   T73] 
[ 6338.613140][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6338.613140][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6338.613140][   T73]      ipv6_find_idev+0x102/0x170
[ 6338.613140][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6338.613140][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6338.613140][   T73]      netlink_rcv_skb+0x130/0x360
[ 6338.613140][   T73]      netlink_unicast+0x449/0x710
[ 6338.613140][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6338.613140][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6338.613140][   T73]      ___sys_sendmsg+0xee/0x170
[ 6338.613140][   T73]      __sys_sendmsg+0xcd/0x170
[ 6338.613140][   T73]      do_syscall_64+0xc6/0x1e0
[ 6338.613140][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6338.613140][   T73] 
[ 6338.614677][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6338.614677][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6338.614677][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6338.614677][   T73]      ipv6_find_idev+0x102/0x170
[ 6338.614677][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6338.614677][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6338.614677][   T73]      netlink_rcv_skb+0x130/0x360
[ 6338.614677][   T73]      netlink_unicast+0x449/0x710
[ 6338.614677][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6338.614677][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6338.614677][   T73]      ___sys_sendmsg+0xee/0x170
[ 6338.614677][   T73]      __sys_sendmsg+0xcd/0x170
[ 6338.614677][   T73]      do_syscall_64+0xc6/0x1e0
[ 6338.614677][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6338.614677][   T73] 
[ 6338.616369][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6338.616664][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6338.616664][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6338.616664][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6338.616664][   T73]      fib6_nh_init+0xa22/0x1580
[ 6338.616664][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6338.616664][   T73]      ip6_route_add+0x1c/0x140
[ 6338.616664][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6338.616664][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6338.616664][   T73]      netlink_rcv_skb+0x130/0x360
[ 6338.616664][   T73]      netlink_unicast+0x449/0x710
[ 6338.616664][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6338.616664][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6338.616664][   T73]      ___sys_sendmsg+0xee/0x170
[ 6338.616664][   T73]      __sys_sendmsg+0xcd/0x170
[ 6338.616664][   T73]      do_syscall_64+0xc6/0x1e0
[ 6338.616664][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6338.616664][   T73] 
[ 6338.618737][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6338.618737][   T73]      dst_init+0x84/0x4a0
[ 6338.618737][   T73]      dst_alloc+0x97/0x150
[ 6338.618737][   T73]      ip6_dst_alloc+0x23/0x90
[ 6338.618737][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6338.618737][   T73]      ip6_pol_route+0x56f/0x840
[ 6338.618737][   T73]      fib6_rule_lookup+0x456/0x630
[ 6338.618737][   T73]      ip6_route_input+0x59c/0xa50
[ 6338.618737][   T73]      ipv6_rcv+0x397/0x810
[ 6338.618737][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6338.618737][   T73]      process_backlog+0x101/0x620
[ 6338.618737][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6338.618737][   T73]      net_rx_action+0x495/0xbe0
[ 6338.618737][   T73]      __do_softirq+0x1b5/0x7f6
[ 6338.618737][   T73] 
[ 6338.620556][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6338.620556][   T73]      netdev_get_by_index+0x5e/0x80
[ 6338.620556][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6338.620556][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6338.620556][   T73]      ip6_route_add+0x1c/0x140
[ 6338.620556][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6338.620556][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6338.620556][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6338.620556][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6338.620556][   T73]      netlink_rcv_skb+0x130/0x360
[ 6338.620556][   T73]      netlink_unicast+0x449/0x710
[ 6338.620556][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6338.620556][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6338.620556][   T73]      ___sys_sendmsg+0xee/0x170
[ 6338.620556][   T73]      __sys_sendmsg+0xcd/0x170
[ 6338.620556][   T73]      do_syscall_64+0xc6/0x1e0
[ 6338.620556][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6338.620556][   T73] 
[ 6338.622809][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6338.622809][   T73]      netdev_get_by_index+0x5e/0x80
[ 6338.622809][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6338.622809][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6338.622809][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6338.622809][   T73]      ipv6_add_addr+0x411/0x2000
[ 6338.622809][   T73]      inet6_addr_add+0x30e/0xa40
[ 6338.622809][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6338.622809][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6338.622809][   T73]      netlink_rcv_skb+0x130/0x360
[ 6338.622809][   T73]      netlink_unicast+0x449/0x710
[ 6338.622809][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6338.622809][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6338.622809][   T73]      ___sys_sendmsg+0xee/0x170
[ 6338.622809][   T73]      __sys_sendmsg+0xcd/0x170
[ 6338.622809][   T73]      do_syscall_64+0xc6/0x1e0
[ 6338.622809][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6338.622809][   T73] 
[ 6338.625119][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6338.625119][   T73]      netdev_get_by_index+0x5e/0x80
[ 6338.625119][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6338.625119][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6338.625119][   T73]      ip6_route_add+0x1c/0x140
[ 6338.625119][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6338.625119][   T73]      addrconf_add_dev+0xe2/0x170
[ 6338.625119][   T73]      inet6_addr_add+0x12f/0xa40
[ 6338.625119][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6338.625119][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6338.625119][   T73]      netlink_rcv_skb+0x130/0x360
[ 6338.625119][   T73]      netlink_unicast+0x449/0x710
[ 6338.625119][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6338.625119][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6338.625119][   T73]      ___sys_sendmsg+0xee/0x170
[ 6338.625119][   T73]      __sys_sendmsg+0xcd/0x170
[ 6338.625119][   T73]      do_syscall_64+0xc6/0x1e0
[ 6338.625119][   T73] 
[ 6338.627212][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6338.627212][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6338.627212][   T73]      ipv6_find_idev+0x102/0x170
[ 6338.627212][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6338.627212][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6338.627212][   T73]      netlink_rcv_skb+0x130/0x360
[ 6338.627212][   T73]      netlink_unicast+0x449/0x710
[ 6338.627212][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6338.627212][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6338.627212][   T73]      ___sys_sendmsg+0xee/0x170
[ 6338.627212][   T73]      __sys_sendmsg+0xcd/0x170
[ 6338.627212][   T73]      do_syscall_64+0xc6/0x1e0
[ 6338.627212][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6338.627212][   T73] 
[ 6338.628941][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6338.628941][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6338.628941][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6338.628941][   T73]      ipv6_find_idev+0x102/0x170
[ 6338.628941][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6338.628941][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6338.628941][   T73]      netlink_rcv_skb+0x130/0x360
[ 6338.628941][   T73]      netlink_unicast+0x449/0x710
[ 6338.628941][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6338.628941][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6338.628941][   T73]      ___sys_sendmsg+0xee/0x170
[ 6338.628941][   T73]      __sys_sendmsg+0xcd/0x170
[ 6338.628941][   T73]      do_syscall_64+0xc6/0x1e0
[ 6338.628941][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6338.628941][   T73] 
[ 6338.630859][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6338.631124][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6338.631124][   T73]      netdev_get_by_index+0x5e/0x80
[ 6338.631124][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6338.631124][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6338.631124][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6338.631124][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6338.631124][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6338.631124][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6338.631124][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6338.631124][   T73]      addrconf_dad_begin+0x310/0x670
[ 6338.631124][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6338.631124][   T73]      process_one_work+0x84d/0x18a0
[ 6338.631124][   T73]      worker_thread+0x587/0xd30
[ 6338.631124][   T73]      kthread+0x28a/0x350
[ 6338.631124][   T73]      ret_from_fork+0x31/0x70
[ 6338.631124][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6338.631124][   T73] 
[ 6338.633279][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6338.633279][   T73]      netdev_get_by_index+0x5e/0x80
[ 6338.633279][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6338.633279][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6338.633279][   T73]      ip6_route_add+0x1c/0x140
[ 6338.633279][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6338.633279][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6338.633279][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6338.633279][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6338.633279][   T73]      netlink_rcv_skb+0x130/0x360
[ 6338.633279][   T73]      netlink_unicast+0x449/0x710
[ 6338.633279][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6338.633279][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6338.633279][   T73]      ___sys_sendmsg+0xee/0x170
[ 6338.633279][   T73]      __sys_sendmsg+0xcd/0x170
[ 6338.633279][   T73]      do_syscall_64+0xc6/0x1e0
[ 6338.633279][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6338.633279][   T73] 
[ 6338.635524][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6338.635524][   T73]      netdev_get_by_index+0x5e/0x80
[ 6338.635524][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6338.635524][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6338.635524][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6338.635524][   T73]      ipv6_add_addr+0x411/0x2000
[ 6338.635524][   T73]      inet6_addr_add+0x30e/0xa40
[ 6338.635524][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6338.635524][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6338.635524][   T73]      netlink_rcv_skb+0x130/0x360
[ 6338.635524][   T73]      netlink_unicast+0x449/0x710
[ 6338.635524][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6338.635524][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6338.635524][   T73]      ___sys_sendmsg+0xee/0x170
[ 6338.635524][   T73]      __sys_sendmsg+0xcd/0x170
[ 6338.635524][   T73]      do_syscall_64+0xc6/0x1e0
[ 6338.635524][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6338.635524][   T73] 
[ 6338.637766][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6338.637766][   T73]      netdev_get_by_index+0x5e/0x80
[ 6338.637766][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6338.637766][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6338.637766][   T73]      ip6_route_add+0x1c/0x140
[ 6338.637766][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6338.637766][   T73]      addrconf_add_dev+0xe2/0x170
[ 6338.637766][   T73]      inet6_addr_add+0x12f/0xa40
[ 6338.637766][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6338.637766][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6338.637766][   T73]      netlink_rcv_skb+0x130/0x360
[ 6338.637766][   T73]      netlink_unicast+0x449/0x710
[ 6338.637766][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6338.637766][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6338.637766][   T73]      ___sys_sendmsg+0xee/0x170
[ 6338.637766][   T73]      __sys_sendmsg+0xcd/0x170
[ 6338.637766][   T73]      do_syscall_64+0xc6/0x1e0
[ 6338.637766][   T73] 
[ 6338.639955][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6338.639955][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6338.639955][   T73]      ipv6_find_idev+0x102/0x170
[ 6338.639955][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6338.639955][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6338.639955][   T73]      netlink_rcv_skb+0x130/0x360
[ 6338.639955][   T73]      netlink_unicast+0x449/0x710
[ 6338.639955][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6338.639955][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6338.639955][   T73]      ___sys_sendmsg+0xee/0x170
[ 6338.639955][   T73]      __sys_sendmsg+0xcd/0x170
[ 6338.639955][   T73]      do_syscall_64+0xc6/0x1e0
[ 6338.639955][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6338.639955][   T73] 
[ 6338.641666][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6338.641666][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6338.641666][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6338.641666][   T73]      ipv6_find_idev+0x102/0x170
[ 6338.641666][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6338.641666][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6338.641666][   T73]      netlink_rcv_skb+0x130/0x360
[ 6338.641666][   T73]      netlink_unicast+0x449/0x710
[ 6338.641666][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6338.641666][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6338.641666][   T73]      ___sys_sendmsg+0xee/0x170
[ 6338.641666][   T73]      __sys_sendmsg+0xcd/0x170
[ 6338.641666][   T73]      do_syscall_64+0xc6/0x1e0
[ 6338.641666][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6338.641666][   T73] 
[ 6348.807692][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6348.808154][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6348.808154][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6348.808154][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6348.808154][   T73]      fib6_nh_init+0xa22/0x1580
[ 6348.808154][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6348.808154][   T73]      ip6_route_add+0x1c/0x140
[ 6348.808154][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6348.808154][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6348.808154][   T73]      netlink_rcv_skb+0x130/0x360
[ 6348.808154][   T73]      netlink_unicast+0x449/0x710
[ 6348.808154][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6348.808154][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6348.808154][   T73]      ___sys_sendmsg+0xee/0x170
[ 6348.808154][   T73]      __sys_sendmsg+0xcd/0x170
[ 6348.808154][   T73]      do_syscall_64+0xc6/0x1e0
[ 6348.808154][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6348.808154][   T73] 
[ 6348.810042][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6348.810042][   T73]      dst_init+0x84/0x4a0
[ 6348.810042][   T73]      dst_alloc+0x97/0x150
[ 6348.810042][   T73]      ip6_dst_alloc+0x23/0x90
[ 6348.810042][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6348.810042][   T73]      ip6_pol_route+0x56f/0x840
[ 6348.810042][   T73]      fib6_rule_lookup+0x456/0x630
[ 6348.810042][   T73]      ip6_route_input+0x59c/0xa50
[ 6348.810042][   T73]      ipv6_rcv+0x397/0x810
[ 6348.810042][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6348.810042][   T73]      process_backlog+0x101/0x620
[ 6348.810042][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6348.810042][   T73]      net_rx_action+0x495/0xbe0
[ 6348.810042][   T73]      __do_softirq+0x1b5/0x7f6
[ 6348.810042][   T73] 
[ 6348.811676][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6348.811676][   T73]      netdev_get_by_index+0x5e/0x80
[ 6348.811676][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6348.811676][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6348.811676][   T73]      ip6_route_add+0x1c/0x140
[ 6348.811676][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6348.811676][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6348.811676][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6348.811676][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6348.811676][   T73]      netlink_rcv_skb+0x130/0x360
[ 6348.811676][   T73]      netlink_unicast+0x449/0x710
[ 6348.811676][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6348.811676][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6348.811676][   T73]      ___sys_sendmsg+0xee/0x170
[ 6348.811676][   T73]      __sys_sendmsg+0xcd/0x170
[ 6348.811676][   T73]      do_syscall_64+0xc6/0x1e0
[ 6348.811676][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6348.811676][   T73] 
[ 6348.813662][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6348.813662][   T73]      netdev_get_by_index+0x5e/0x80
[ 6348.813662][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6348.813662][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6348.813662][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6348.813662][   T73]      ipv6_add_addr+0x411/0x2000
[ 6348.813662][   T73]      inet6_addr_add+0x30e/0xa40
[ 6348.813662][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6348.813662][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6348.813662][   T73]      netlink_rcv_skb+0x130/0x360
[ 6348.813662][   T73]      netlink_unicast+0x449/0x710
[ 6348.813662][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6348.813662][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6348.813662][   T73]      ___sys_sendmsg+0xee/0x170
[ 6348.813662][   T73]      __sys_sendmsg+0xcd/0x170
[ 6348.813662][   T73]      do_syscall_64+0xc6/0x1e0
[ 6348.813662][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6348.813662][   T73] 
[ 6348.815666][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6348.815666][   T73]      netdev_get_by_index+0x5e/0x80
[ 6348.815666][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6348.815666][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6348.815666][   T73]      ip6_route_add+0x1c/0x140
[ 6348.815666][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6348.815666][   T73]      addrconf_add_dev+0xe2/0x170
[ 6348.815666][   T73]      inet6_addr_add+0x12f/0xa40
[ 6348.815666][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6348.815666][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6348.815666][   T73]      netlink_rcv_skb+0x130/0x360
[ 6348.815666][   T73]      netlink_unicast+0x449/0x710
[ 6348.815666][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6348.815666][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6348.815666][   T73]      ___sys_sendmsg+0xee/0x170
[ 6348.815666][   T73]      __sys_sendmsg+0xcd/0x170
[ 6348.815666][   T73]      do_syscall_64+0xc6/0x1e0
[ 6348.815666][   T73] 
[ 6348.817625][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6348.817625][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6348.817625][   T73]      ipv6_find_idev+0x102/0x170
[ 6348.817625][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6348.817625][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6348.817625][   T73]      netlink_rcv_skb+0x130/0x360
[ 6348.817625][   T73]      netlink_unicast+0x449/0x710
[ 6348.817625][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6348.817625][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6348.817625][   T73]      ___sys_sendmsg+0xee/0x170
[ 6348.817625][   T73]      __sys_sendmsg+0xcd/0x170
[ 6348.817625][   T73]      do_syscall_64+0xc6/0x1e0
[ 6348.817625][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6348.817625][   T73] 
[ 6348.819173][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6348.819173][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6348.819173][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6348.819173][   T73]      ipv6_find_idev+0x102/0x170
[ 6348.819173][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6348.819173][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6348.819173][   T73]      netlink_rcv_skb+0x130/0x360
[ 6348.819173][   T73]      netlink_unicast+0x449/0x710
[ 6348.819173][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6348.819173][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6348.819173][   T73]      ___sys_sendmsg+0xee/0x170
[ 6348.819173][   T73]      __sys_sendmsg+0xcd/0x170
[ 6348.819173][   T73]      do_syscall_64+0xc6/0x1e0
[ 6348.819173][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6348.819173][   T73] 
[ 6348.820857][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6348.821139][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6348.821139][   T73]      netdev_get_by_index+0x5e/0x80
[ 6348.821139][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6348.821139][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6348.821139][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6348.821139][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6348.821139][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6348.821139][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6348.821139][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6348.821139][   T73]      addrconf_dad_begin+0x310/0x670
[ 6348.821139][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6348.821139][   T73]      process_one_work+0x84d/0x18a0
[ 6348.821139][   T73]      worker_thread+0x587/0xd30
[ 6348.821139][   T73]      kthread+0x28a/0x350
[ 6348.821139][   T73]      ret_from_fork+0x31/0x70
[ 6348.821139][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6348.821139][   T73] 
[ 6348.823040][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6348.823040][   T73]      netdev_get_by_index+0x5e/0x80
[ 6348.823040][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6348.823040][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6348.823040][   T73]      ip6_route_add+0x1c/0x140
[ 6348.823040][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6348.823040][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6348.823040][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6348.823040][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6348.823040][   T73]      netlink_rcv_skb+0x130/0x360
[ 6348.823040][   T73]      netlink_unicast+0x449/0x710
[ 6348.823040][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6348.823040][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6348.823040][   T73]      ___sys_sendmsg+0xee/0x170
[ 6348.823040][   T73]      __sys_sendmsg+0xcd/0x170
[ 6348.823040][   T73]      do_syscall_64+0xc6/0x1e0
[ 6348.823040][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6348.823040][   T73] 
[ 6348.825060][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6348.825060][   T73]      netdev_get_by_index+0x5e/0x80
[ 6348.825060][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6348.825060][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6348.825060][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6348.825060][   T73]      ipv6_add_addr+0x411/0x2000
[ 6348.825060][   T73]      inet6_addr_add+0x30e/0xa40
[ 6348.825060][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6348.825060][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6348.825060][   T73]      netlink_rcv_skb+0x130/0x360
[ 6348.825060][   T73]      netlink_unicast+0x449/0x710
[ 6348.825060][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6348.825060][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6348.825060][   T73]      ___sys_sendmsg+0xee/0x170
[ 6348.825060][   T73]      __sys_sendmsg+0xcd/0x170
[ 6348.825060][   T73]      do_syscall_64+0xc6/0x1e0
[ 6348.825060][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6348.825060][   T73] 
[ 6348.827047][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6348.827047][   T73]      netdev_get_by_index+0x5e/0x80
[ 6348.827047][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6348.827047][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6348.827047][   T73]      ip6_route_add+0x1c/0x140
[ 6348.827047][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6348.827047][   T73]      addrconf_add_dev+0xe2/0x170
[ 6348.827047][   T73]      inet6_addr_add+0x12f/0xa40
[ 6348.827047][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6348.827047][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6348.827047][   T73]      netlink_rcv_skb+0x130/0x360
[ 6348.827047][   T73]      netlink_unicast+0x449/0x710
[ 6348.827047][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6348.827047][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6348.827047][   T73]      ___sys_sendmsg+0xee/0x170
[ 6348.827047][   T73]      __sys_sendmsg+0xcd/0x170
[ 6348.827047][   T73]      do_syscall_64+0xc6/0x1e0
[ 6348.827047][   T73] 
[ 6348.829016][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6348.829016][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6348.829016][   T73]      ipv6_find_idev+0x102/0x170
[ 6348.829016][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6348.829016][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6348.829016][   T73]      netlink_rcv_skb+0x130/0x360
[ 6348.829016][   T73]      netlink_unicast+0x449/0x710
[ 6348.829016][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6348.829016][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6348.829016][   T73]      ___sys_sendmsg+0xee/0x170
[ 6348.829016][   T73]      __sys_sendmsg+0xcd/0x170
[ 6348.829016][   T73]      do_syscall_64+0xc6/0x1e0
[ 6348.829016][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6348.829016][   T73] 
[ 6348.830545][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6348.830545][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6348.830545][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6348.830545][   T73]      ipv6_find_idev+0x102/0x170
[ 6348.830545][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6348.830545][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6348.830545][   T73]      netlink_rcv_skb+0x130/0x360
[ 6348.830545][   T73]      netlink_unicast+0x449/0x710
[ 6348.830545][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6348.830545][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6348.830545][   T73]      ___sys_sendmsg+0xee/0x170
[ 6348.830545][   T73]      __sys_sendmsg+0xcd/0x170
[ 6348.830545][   T73]      do_syscall_64+0xc6/0x1e0
[ 6348.830545][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6348.830545][   T73] 
[ 6348.832221][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6348.832485][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6348.832485][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6348.832485][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6348.832485][   T73]      fib6_nh_init+0xa22/0x1580
[ 6348.832485][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6348.832485][   T73]      ip6_route_add+0x1c/0x140
[ 6348.832485][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6348.832485][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6348.832485][   T73]      netlink_rcv_skb+0x130/0x360
[ 6348.832485][   T73]      netlink_unicast+0x449/0x710
[ 6348.832485][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6348.832485][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6348.832485][   T73]      ___sys_sendmsg+0xee/0x170
[ 6348.832485][   T73]      __sys_sendmsg+0xcd/0x170
[ 6348.832485][   T73]      do_syscall_64+0xc6/0x1e0
[ 6348.832485][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6348.832485][   T73] 
[ 6348.834535][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6348.834535][   T73]      dst_init+0x84/0x4a0
[ 6348.834535][   T73]      dst_alloc+0x97/0x150
[ 6348.834535][   T73]      ip6_dst_alloc+0x23/0x90
[ 6348.834535][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6348.834535][   T73]      ip6_pol_route+0x56f/0x840
[ 6348.834535][   T73]      fib6_rule_lookup+0x456/0x630
[ 6348.834535][   T73]      ip6_route_input+0x59c/0xa50
[ 6348.834535][   T73]      ipv6_rcv+0x397/0x810
[ 6348.834535][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6348.834535][   T73]      process_backlog+0x101/0x620
[ 6348.834535][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6348.834535][   T73]      net_rx_action+0x495/0xbe0
[ 6348.834535][   T73]      __do_softirq+0x1b5/0x7f6
[ 6348.834535][   T73] 
[ 6348.836408][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6348.836408][   T73]      netdev_get_by_index+0x5e/0x80
[ 6348.836408][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6348.836408][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6348.836408][   T73]      ip6_route_add+0x1c/0x140
[ 6348.836408][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6348.836408][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6348.836408][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6348.836408][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6348.836408][   T73]      netlink_rcv_skb+0x130/0x360
[ 6348.836408][   T73]      netlink_unicast+0x449/0x710
[ 6348.836408][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6348.836408][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6348.836408][   T73]      ___sys_sendmsg+0xee/0x170
[ 6348.836408][   T73]      __sys_sendmsg+0xcd/0x170
[ 6348.836408][   T73]      do_syscall_64+0xc6/0x1e0
[ 6348.836408][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6348.836408][   T73] 
[ 6348.838650][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6348.838650][   T73]      netdev_get_by_index+0x5e/0x80
[ 6348.838650][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6348.838650][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6348.838650][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6348.838650][   T73]      ipv6_add_addr+0x411/0x2000
[ 6348.838650][   T73]      inet6_addr_add+0x30e/0xa40
[ 6348.838650][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6348.838650][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6348.838650][   T73]      netlink_rcv_skb+0x130/0x360
[ 6348.838650][   T73]      netlink_unicast+0x449/0x710
[ 6348.838650][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6348.838650][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6348.838650][   T73]      ___sys_sendmsg+0xee/0x170
[ 6348.838650][   T73]      __sys_sendmsg+0xcd/0x170
[ 6348.838650][   T73]      do_syscall_64+0xc6/0x1e0
[ 6348.838650][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6348.838650][   T73] 
[ 6348.840760][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6348.840760][   T73]      netdev_get_by_index+0x5e/0x80
[ 6348.840760][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6348.840760][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6348.840760][   T73]      ip6_route_add+0x1c/0x140
[ 6348.840760][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6348.840760][   T73]      addrconf_add_dev+0xe2/0x170
[ 6348.840760][   T73]      inet6_addr_add+0x12f/0xa40
[ 6348.840760][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6348.840760][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6348.840760][   T73]      netlink_rcv_skb+0x130/0x360
[ 6348.840760][   T73]      netlink_unicast+0x449/0x710
[ 6348.840760][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6348.840760][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6348.840760][   T73]      ___sys_sendmsg+0xee/0x170
[ 6348.840760][   T73]      __sys_sendmsg+0xcd/0x170
[ 6348.840760][   T73]      do_syscall_64+0xc6/0x1e0
[ 6348.840760][   T73] 
[ 6348.842901][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6348.842901][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6348.842901][   T73]      ipv6_find_idev+0x102/0x170
[ 6348.842901][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6348.842901][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6348.842901][   T73]      netlink_rcv_skb+0x130/0x360
[ 6348.842901][   T73]      netlink_unicast+0x449/0x710
[ 6348.842901][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6348.842901][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6348.842901][   T73]      ___sys_sendmsg+0xee/0x170
[ 6348.842901][   T73]      __sys_sendmsg+0xcd/0x170
[ 6348.842901][   T73]      do_syscall_64+0xc6/0x1e0
[ 6348.842901][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6348.842901][   T73] 
[ 6348.844667][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6348.844667][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6348.844667][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6348.844667][   T73]      ipv6_find_idev+0x102/0x170
[ 6348.844667][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6348.844667][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6348.844667][   T73]      netlink_rcv_skb+0x130/0x360
[ 6348.844667][   T73]      netlink_unicast+0x449/0x710
[ 6348.844667][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6348.844667][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6348.844667][   T73]      ___sys_sendmsg+0xee/0x170
[ 6348.844667][   T73]      __sys_sendmsg+0xcd/0x170
[ 6348.844667][   T73]      do_syscall_64+0xc6/0x1e0
[ 6348.844667][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6348.844667][   T73] 
[ 6348.846568][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6348.847278][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6348.847278][   T73]      netdev_get_by_index+0x5e/0x80
[ 6348.847278][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6348.847278][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6348.847278][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6348.847278][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6348.847278][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6348.847278][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6348.847278][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6348.847278][   T73]      addrconf_dad_begin+0x310/0x670
[ 6348.847278][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6348.847278][   T73]      process_one_work+0x84d/0x18a0
[ 6348.847278][   T73]      worker_thread+0x587/0xd30
[ 6348.847278][   T73]      kthread+0x28a/0x350
[ 6348.847278][   T73]      ret_from_fork+0x31/0x70
[ 6348.847278][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6348.847278][   T73] 
[ 6348.849173][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6348.849173][   T73]      netdev_get_by_index+0x5e/0x80
[ 6348.849173][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6348.849173][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6348.849173][   T73]      ip6_route_add+0x1c/0x140
[ 6348.849173][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6348.849173][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6348.849173][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6348.849173][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6348.849173][   T73]      netlink_rcv_skb+0x130/0x360
[ 6348.849173][   T73]      netlink_unicast+0x449/0x710
[ 6348.849173][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6348.849173][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6348.849173][   T73]      ___sys_sendmsg+0xee/0x170
[ 6348.849173][   T73]      __sys_sendmsg+0xcd/0x170
[ 6348.849173][   T73]      do_syscall_64+0xc6/0x1e0
[ 6348.849173][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6348.849173][   T73] 
[ 6348.851281][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6348.851281][   T73]      netdev_get_by_index+0x5e/0x80
[ 6348.851281][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6348.851281][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6348.851281][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6348.851281][   T73]      ipv6_add_addr+0x411/0x2000
[ 6348.851281][   T73]      inet6_addr_add+0x30e/0xa40
[ 6348.851281][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6348.851281][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6348.851281][   T73]      netlink_rcv_skb+0x130/0x360
[ 6348.851281][   T73]      netlink_unicast+0x449/0x710
[ 6348.851281][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6348.851281][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6348.851281][   T73]      ___sys_sendmsg+0xee/0x170
[ 6348.851281][   T73]      __sys_sendmsg+0xcd/0x170
[ 6348.851281][   T73]      do_syscall_64+0xc6/0x1e0
[ 6348.851281][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6348.851281][   T73] 
[ 6348.853446][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6348.853446][   T73]      netdev_get_by_index+0x5e/0x80
[ 6348.853446][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6348.853446][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6348.853446][   T73]      ip6_route_add+0x1c/0x140
[ 6348.853446][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6348.853446][   T73]      addrconf_add_dev+0xe2/0x170
[ 6348.853446][   T73]      inet6_addr_add+0x12f/0xa40
[ 6348.853446][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6348.853446][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6348.853446][   T73]      netlink_rcv_skb+0x130/0x360
[ 6348.853446][   T73]      netlink_unicast+0x449/0x710
[ 6348.853446][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6348.853446][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6348.853446][   T73]      ___sys_sendmsg+0xee/0x170
[ 6348.853446][   T73]      __sys_sendmsg+0xcd/0x170
[ 6348.853446][   T73]      do_syscall_64+0xc6/0x1e0
[ 6348.853446][   T73] 
[ 6348.855658][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6348.855658][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6348.855658][   T73]      ipv6_find_idev+0x102/0x170
[ 6348.855658][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6348.855658][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6348.855658][   T73]      netlink_rcv_skb+0x130/0x360
[ 6348.855658][   T73]      netlink_unicast+0x449/0x710
[ 6348.855658][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6348.855658][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6348.855658][   T73]      ___sys_sendmsg+0xee/0x170
[ 6348.855658][   T73]      __sys_sendmsg+0xcd/0x170
[ 6348.855658][   T73]      do_syscall_64+0xc6/0x1e0
[ 6348.855658][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6348.855658][   T73] 
[ 6348.857434][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6348.857434][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6348.857434][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6348.857434][   T73]      ipv6_find_idev+0x102/0x170
[ 6348.857434][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6348.857434][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6348.857434][   T73]      netlink_rcv_skb+0x130/0x360
[ 6348.857434][   T73]      netlink_unicast+0x449/0x710
[ 6348.857434][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6348.857434][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6348.857434][   T73]      ___sys_sendmsg+0xee/0x170
[ 6348.857434][   T73]      __sys_sendmsg+0xcd/0x170
[ 6348.857434][   T73]      do_syscall_64+0xc6/0x1e0
[ 6348.857434][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6348.857434][   T73] 
[ 6359.095757][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6359.096242][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6359.096242][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6359.096242][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6359.096242][   T73]      fib6_nh_init+0xa22/0x1580
[ 6359.096242][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6359.096242][   T73]      ip6_route_add+0x1c/0x140
[ 6359.096242][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6359.096242][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6359.096242][   T73]      netlink_rcv_skb+0x130/0x360
[ 6359.096242][   T73]      netlink_unicast+0x449/0x710
[ 6359.096242][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6359.096242][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6359.096242][   T73]      ___sys_sendmsg+0xee/0x170
[ 6359.096242][   T73]      __sys_sendmsg+0xcd/0x170
[ 6359.096242][   T73]      do_syscall_64+0xc6/0x1e0
[ 6359.096242][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6359.096242][   T73] 
[ 6359.098172][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6359.098172][   T73]      dst_init+0x84/0x4a0
[ 6359.098172][   T73]      dst_alloc+0x97/0x150
[ 6359.098172][   T73]      ip6_dst_alloc+0x23/0x90
[ 6359.098172][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6359.098172][   T73]      ip6_pol_route+0x56f/0x840
[ 6359.098172][   T73]      fib6_rule_lookup+0x456/0x630
[ 6359.098172][   T73]      ip6_route_input+0x59c/0xa50
[ 6359.098172][   T73]      ipv6_rcv+0x397/0x810
[ 6359.098172][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6359.098172][   T73]      process_backlog+0x101/0x620
[ 6359.098172][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6359.098172][   T73]      net_rx_action+0x495/0xbe0
[ 6359.098172][   T73]      __do_softirq+0x1b5/0x7f6
[ 6359.098172][   T73] 
[ 6359.099829][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6359.099829][   T73]      netdev_get_by_index+0x5e/0x80
[ 6359.099829][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6359.099829][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6359.099829][   T73]      ip6_route_add+0x1c/0x140
[ 6359.099829][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6359.099829][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6359.099829][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6359.099829][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6359.099829][   T73]      netlink_rcv_skb+0x130/0x360
[ 6359.099829][   T73]      netlink_unicast+0x449/0x710
[ 6359.099829][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6359.099829][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6359.099829][   T73]      ___sys_sendmsg+0xee/0x170
[ 6359.099829][   T73]      __sys_sendmsg+0xcd/0x170
[ 6359.099829][   T73]      do_syscall_64+0xc6/0x1e0
[ 6359.099829][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6359.099829][   T73] 
[ 6359.101850][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6359.101850][   T73]      netdev_get_by_index+0x5e/0x80
[ 6359.101850][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6359.101850][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6359.101850][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6359.101850][   T73]      ipv6_add_addr+0x411/0x2000
[ 6359.101850][   T73]      inet6_addr_add+0x30e/0xa40
[ 6359.101850][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6359.101850][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6359.101850][   T73]      netlink_rcv_skb+0x130/0x360
[ 6359.101850][   T73]      netlink_unicast+0x449/0x710
[ 6359.101850][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6359.101850][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6359.101850][   T73]      ___sys_sendmsg+0xee/0x170
[ 6359.101850][   T73]      __sys_sendmsg+0xcd/0x170
[ 6359.101850][   T73]      do_syscall_64+0xc6/0x1e0
[ 6359.101850][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6359.101850][   T73] 
[ 6359.103871][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6359.103871][   T73]      netdev_get_by_index+0x5e/0x80
[ 6359.103871][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6359.103871][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6359.103871][   T73]      ip6_route_add+0x1c/0x140
[ 6359.103871][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6359.103871][   T73]      addrconf_add_dev+0xe2/0x170
[ 6359.103871][   T73]      inet6_addr_add+0x12f/0xa40
[ 6359.103871][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6359.103871][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6359.103871][   T73]      netlink_rcv_skb+0x130/0x360
[ 6359.103871][   T73]      netlink_unicast+0x449/0x710
[ 6359.103871][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6359.103871][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6359.103871][   T73]      ___sys_sendmsg+0xee/0x170
[ 6359.103871][   T73]      __sys_sendmsg+0xcd/0x170
[ 6359.103871][   T73]      do_syscall_64+0xc6/0x1e0
[ 6359.103871][   T73] 
[ 6359.105900][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6359.105900][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6359.105900][   T73]      ipv6_find_idev+0x102/0x170
[ 6359.105900][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6359.105900][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6359.105900][   T73]      netlink_rcv_skb+0x130/0x360
[ 6359.105900][   T73]      netlink_unicast+0x449/0x710
[ 6359.105900][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6359.105900][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6359.105900][   T73]      ___sys_sendmsg+0xee/0x170
[ 6359.105900][   T73]      __sys_sendmsg+0xcd/0x170
[ 6359.105900][   T73]      do_syscall_64+0xc6/0x1e0
[ 6359.105900][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6359.105900][   T73] 
[ 6359.107468][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6359.107468][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6359.107468][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6359.107468][   T73]      ipv6_find_idev+0x102/0x170
[ 6359.107468][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6359.107468][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6359.107468][   T73]      netlink_rcv_skb+0x130/0x360
[ 6359.107468][   T73]      netlink_unicast+0x449/0x710
[ 6359.107468][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6359.107468][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6359.107468][   T73]      ___sys_sendmsg+0xee/0x170
[ 6359.107468][   T73]      __sys_sendmsg+0xcd/0x170
[ 6359.107468][   T73]      do_syscall_64+0xc6/0x1e0
[ 6359.107468][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6359.107468][   T73] 
[ 6359.109197][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6359.109478][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6359.109478][   T73]      netdev_get_by_index+0x5e/0x80
[ 6359.109478][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6359.109478][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6359.109478][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6359.109478][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6359.109478][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6359.109478][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6359.109478][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6359.109478][   T73]      addrconf_dad_begin+0x310/0x670
[ 6359.109478][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6359.109478][   T73]      process_one_work+0x84d/0x18a0
[ 6359.109478][   T73]      worker_thread+0x587/0xd30
[ 6359.109478][   T73]      kthread+0x28a/0x350
[ 6359.109478][   T73]      ret_from_fork+0x31/0x70
[ 6359.109478][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6359.109478][   T73] 
[ 6359.111420][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6359.111420][   T73]      netdev_get_by_index+0x5e/0x80
[ 6359.111420][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6359.111420][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6359.111420][   T73]      ip6_route_add+0x1c/0x140
[ 6359.111420][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6359.111420][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6359.111420][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6359.111420][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6359.111420][   T73]      netlink_rcv_skb+0x130/0x360
[ 6359.111420][   T73]      netlink_unicast+0x449/0x710
[ 6359.111420][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6359.111420][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6359.111420][   T73]      ___sys_sendmsg+0xee/0x170
[ 6359.111420][   T73]      __sys_sendmsg+0xcd/0x170
[ 6359.111420][   T73]      do_syscall_64+0xc6/0x1e0
[ 6359.111420][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6359.111420][   T73] 
[ 6359.113442][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6359.113442][   T73]      netdev_get_by_index+0x5e/0x80
[ 6359.113442][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6359.113442][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6359.113442][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6359.113442][   T73]      ipv6_add_addr+0x411/0x2000
[ 6359.113442][   T73]      inet6_addr_add+0x30e/0xa40
[ 6359.113442][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6359.113442][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6359.113442][   T73]      netlink_rcv_skb+0x130/0x360
[ 6359.113442][   T73]      netlink_unicast+0x449/0x710
[ 6359.113442][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6359.113442][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6359.113442][   T73]      ___sys_sendmsg+0xee/0x170
[ 6359.113442][   T73]      __sys_sendmsg+0xcd/0x170
[ 6359.113442][   T73]      do_syscall_64+0xc6/0x1e0
[ 6359.113442][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6359.113442][   T73] 
[ 6359.115487][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6359.115487][   T73]      netdev_get_by_index+0x5e/0x80
[ 6359.115487][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6359.115487][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6359.115487][   T73]      ip6_route_add+0x1c/0x140
[ 6359.115487][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6359.115487][   T73]      addrconf_add_dev+0xe2/0x170
[ 6359.115487][   T73]      inet6_addr_add+0x12f/0xa40
[ 6359.115487][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6359.115487][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6359.115487][   T73]      netlink_rcv_skb+0x130/0x360
[ 6359.115487][   T73]      netlink_unicast+0x449/0x710
[ 6359.115487][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6359.115487][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6359.115487][   T73]      ___sys_sendmsg+0xee/0x170
[ 6359.115487][   T73]      __sys_sendmsg+0xcd/0x170
[ 6359.115487][   T73]      do_syscall_64+0xc6/0x1e0
[ 6359.115487][   T73] 
[ 6359.117475][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6359.117475][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6359.117475][   T73]      ipv6_find_idev+0x102/0x170
[ 6359.117475][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6359.117475][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6359.117475][   T73]      netlink_rcv_skb+0x130/0x360
[ 6359.117475][   T73]      netlink_unicast+0x449/0x710
[ 6359.117475][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6359.117475][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6359.117475][   T73]      ___sys_sendmsg+0xee/0x170
[ 6359.117475][   T73]      __sys_sendmsg+0xcd/0x170
[ 6359.117475][   T73]      do_syscall_64+0xc6/0x1e0
[ 6359.117475][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6359.117475][   T73] 
[ 6359.119025][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6359.119025][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6359.119025][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6359.119025][   T73]      ipv6_find_idev+0x102/0x170
[ 6359.119025][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6359.119025][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6359.119025][   T73]      netlink_rcv_skb+0x130/0x360
[ 6359.119025][   T73]      netlink_unicast+0x449/0x710
[ 6359.119025][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6359.119025][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6359.119025][   T73]      ___sys_sendmsg+0xee/0x170
[ 6359.119025][   T73]      __sys_sendmsg+0xcd/0x170
[ 6359.119025][   T73]      do_syscall_64+0xc6/0x1e0
[ 6359.119025][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6359.119025][   T73] 
[ 6359.120729][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6359.121013][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6359.121013][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6359.121013][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6359.121013][   T73]      fib6_nh_init+0xa22/0x1580
[ 6359.121013][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6359.121013][   T73]      ip6_route_add+0x1c/0x140
[ 6359.121013][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6359.121013][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6359.121013][   T73]      netlink_rcv_skb+0x130/0x360
[ 6359.121013][   T73]      netlink_unicast+0x449/0x710
[ 6359.121013][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6359.121013][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6359.121013][   T73]      ___sys_sendmsg+0xee/0x170
[ 6359.121013][   T73]      __sys_sendmsg+0xcd/0x170
[ 6359.121013][   T73]      do_syscall_64+0xc6/0x1e0
[ 6359.121013][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6359.121013][   T73] 
[ 6359.123110][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6359.123110][   T73]      dst_init+0x84/0x4a0
[ 6359.123110][   T73]      dst_alloc+0x97/0x150
[ 6359.123110][   T73]      ip6_dst_alloc+0x23/0x90
[ 6359.123110][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6359.123110][   T73]      ip6_pol_route+0x56f/0x840
[ 6359.123110][   T73]      fib6_rule_lookup+0x456/0x630
[ 6359.123110][   T73]      ip6_route_input+0x59c/0xa50
[ 6359.123110][   T73]      ipv6_rcv+0x397/0x810
[ 6359.123110][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6359.123110][   T73]      process_backlog+0x101/0x620
[ 6359.123110][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6359.123110][   T73]      net_rx_action+0x495/0xbe0
[ 6359.123110][   T73]      __do_softirq+0x1b5/0x7f6
[ 6359.123110][   T73] 
[ 6359.124963][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6359.124963][   T73]      netdev_get_by_index+0x5e/0x80
[ 6359.124963][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6359.124963][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6359.124963][   T73]      ip6_route_add+0x1c/0x140
[ 6359.124963][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6359.124963][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6359.124963][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6359.124963][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6359.124963][   T73]      netlink_rcv_skb+0x130/0x360
[ 6359.124963][   T73]      netlink_unicast+0x449/0x710
[ 6359.124963][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6359.124963][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6359.124963][   T73]      ___sys_sendmsg+0xee/0x170
[ 6359.124963][   T73]      __sys_sendmsg+0xcd/0x170
[ 6359.124963][   T73]      do_syscall_64+0xc6/0x1e0
[ 6359.124963][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6359.124963][   T73] 
[ 6359.127232][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6359.127232][   T73]      netdev_get_by_index+0x5e/0x80
[ 6359.127232][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6359.127232][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6359.127232][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6359.127232][   T73]      ipv6_add_addr+0x411/0x2000
[ 6359.127232][   T73]      inet6_addr_add+0x30e/0xa40
[ 6359.127232][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6359.127232][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6359.127232][   T73]      netlink_rcv_skb+0x130/0x360
[ 6359.127232][   T73]      netlink_unicast+0x449/0x710
[ 6359.127232][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6359.127232][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6359.127232][   T73]      ___sys_sendmsg+0xee/0x170
[ 6359.127232][   T73]      __sys_sendmsg+0xcd/0x170
[ 6359.127232][   T73]      do_syscall_64+0xc6/0x1e0
[ 6359.127232][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6359.127232][   T73] 
[ 6359.129503][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6359.129503][   T73]      netdev_get_by_index+0x5e/0x80
[ 6359.129503][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6359.129503][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6359.129503][   T73]      ip6_route_add+0x1c/0x140
[ 6359.129503][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6359.129503][   T73]      addrconf_add_dev+0xe2/0x170
[ 6359.129503][   T73]      inet6_addr_add+0x12f/0xa40
[ 6359.129503][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6359.129503][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6359.129503][   T73]      netlink_rcv_skb+0x130/0x360
[ 6359.129503][   T73]      netlink_unicast+0x449/0x710
[ 6359.129503][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6359.129503][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6359.129503][   T73]      ___sys_sendmsg+0xee/0x170
[ 6359.129503][   T73]      __sys_sendmsg+0xcd/0x170
[ 6359.129503][   T73]      do_syscall_64+0xc6/0x1e0
[ 6359.129503][   T73] 
[ 6359.131800][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6359.131800][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6359.131800][   T73]      ipv6_find_idev+0x102/0x170
[ 6359.131800][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6359.131800][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6359.131800][   T73]      netlink_rcv_skb+0x130/0x360
[ 6359.131800][   T73]      netlink_unicast+0x449/0x710
[ 6359.131800][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6359.131800][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6359.131800][   T73]      ___sys_sendmsg+0xee/0x170
[ 6359.131800][   T73]      __sys_sendmsg+0xcd/0x170
[ 6359.131800][   T73]      do_syscall_64+0xc6/0x1e0
[ 6359.131800][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6359.131800][   T73] 
[ 6359.133547][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6359.133547][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6359.133547][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6359.133547][   T73]      ipv6_find_idev+0x102/0x170
[ 6359.133547][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6359.133547][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6359.133547][   T73]      netlink_rcv_skb+0x130/0x360
[ 6359.133547][   T73]      netlink_unicast+0x449/0x710
[ 6359.133547][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6359.133547][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6359.133547][   T73]      ___sys_sendmsg+0xee/0x170
[ 6359.133547][   T73]      __sys_sendmsg+0xcd/0x170
[ 6359.133547][   T73]      do_syscall_64+0xc6/0x1e0
[ 6359.133547][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6359.133547][   T73] 
[ 6359.135453][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6359.135740][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6359.135740][   T73]      netdev_get_by_index+0x5e/0x80
[ 6359.135740][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6359.135740][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6359.135740][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6359.135740][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6359.135740][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6359.135740][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6359.135740][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6359.135740][   T73]      addrconf_dad_begin+0x310/0x670
[ 6359.135740][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6359.135740][   T73]      process_one_work+0x84d/0x18a0
[ 6359.135740][   T73]      worker_thread+0x587/0xd30
[ 6359.135740][   T73]      kthread+0x28a/0x350
[ 6359.135740][   T73]      ret_from_fork+0x31/0x70
[ 6359.135740][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6359.135740][   T73] 
[ 6359.137941][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6359.137941][   T73]      netdev_get_by_index+0x5e/0x80
[ 6359.137941][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6359.137941][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6359.137941][   T73]      ip6_route_add+0x1c/0x140
[ 6359.137941][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6359.137941][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6359.137941][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6359.137941][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6359.137941][   T73]      netlink_rcv_skb+0x130/0x360
[ 6359.137941][   T73]      netlink_unicast+0x449/0x710
[ 6359.137941][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6359.137941][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6359.137941][   T73]      ___sys_sendmsg+0xee/0x170
[ 6359.137941][   T73]      __sys_sendmsg+0xcd/0x170
[ 6359.137941][   T73]      do_syscall_64+0xc6/0x1e0
[ 6359.137941][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6359.137941][   T73] 
[ 6359.140270][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6359.140270][   T73]      netdev_get_by_index+0x5e/0x80
[ 6359.140270][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6359.140270][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6359.140270][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6359.140270][   T73]      ipv6_add_addr+0x411/0x2000
[ 6359.140270][   T73]      inet6_addr_add+0x30e/0xa40
[ 6359.140270][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6359.140270][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6359.140270][   T73]      netlink_rcv_skb+0x130/0x360
[ 6359.140270][   T73]      netlink_unicast+0x449/0x710
[ 6359.140270][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6359.140270][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6359.140270][   T73]      ___sys_sendmsg+0xee/0x170
[ 6359.140270][   T73]      __sys_sendmsg+0xcd/0x170
[ 6359.140270][   T73]      do_syscall_64+0xc6/0x1e0
[ 6359.140270][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6359.140270][   T73] 
[ 6359.142546][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6359.142546][   T73]      netdev_get_by_index+0x5e/0x80
[ 6359.142546][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6359.142546][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6359.142546][   T73]      ip6_route_add+0x1c/0x140
[ 6359.142546][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6359.142546][   T73]      addrconf_add_dev+0xe2/0x170
[ 6359.142546][   T73]      inet6_addr_add+0x12f/0xa40
[ 6359.142546][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6359.142546][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6359.142546][   T73]      netlink_rcv_skb+0x130/0x360
[ 6359.142546][   T73]      netlink_unicast+0x449/0x710
[ 6359.142546][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6359.142546][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6359.142546][   T73]      ___sys_sendmsg+0xee/0x170
[ 6359.142546][   T73]      __sys_sendmsg+0xcd/0x170
[ 6359.142546][   T73]      do_syscall_64+0xc6/0x1e0
[ 6359.142546][   T73] 
[ 6359.144718][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6359.144718][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6359.144718][   T73]      ipv6_find_idev+0x102/0x170
[ 6359.144718][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6359.144718][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6359.144718][   T73]      netlink_rcv_skb+0x130/0x360
[ 6359.144718][   T73]      netlink_unicast+0x449/0x710
[ 6359.144718][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6359.144718][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6359.144718][   T73]      ___sys_sendmsg+0xee/0x170
[ 6359.144718][   T73]      __sys_sendmsg+0xcd/0x170
[ 6359.144718][   T73]      do_syscall_64+0xc6/0x1e0
[ 6359.144718][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6359.144718][   T73] 
[ 6359.146471][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6359.146471][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6359.146471][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6359.146471][   T73]      ipv6_find_idev+0x102/0x170
[ 6359.146471][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6359.146471][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6359.146471][   T73]      netlink_rcv_skb+0x130/0x360
[ 6359.146471][   T73]      netlink_unicast+0x449/0x710
[ 6359.146471][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6359.146471][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6359.146471][   T73]      ___sys_sendmsg+0xee/0x170
[ 6359.146471][   T73]      __sys_sendmsg+0xcd/0x170
[ 6359.146471][   T73]      do_syscall_64+0xc6/0x1e0
[ 6359.146471][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6359.146471][   T73] 
[ 6369.383818][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6369.384323][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6369.384323][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6369.384323][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6369.384323][   T73]      fib6_nh_init+0xa22/0x1580
[ 6369.384323][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6369.384323][   T73]      ip6_route_add+0x1c/0x140
[ 6369.384323][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6369.384323][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6369.384323][   T73]      netlink_rcv_skb+0x130/0x360
[ 6369.384323][   T73]      netlink_unicast+0x449/0x710
[ 6369.384323][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6369.384323][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6369.384323][   T73]      ___sys_sendmsg+0xee/0x170
[ 6369.384323][   T73]      __sys_sendmsg+0xcd/0x170
[ 6369.384323][   T73]      do_syscall_64+0xc6/0x1e0
[ 6369.384323][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6369.384323][   T73] 
[ 6369.386260][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6369.386260][   T73]      dst_init+0x84/0x4a0
[ 6369.386260][   T73]      dst_alloc+0x97/0x150
[ 6369.386260][   T73]      ip6_dst_alloc+0x23/0x90
[ 6369.386260][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6369.386260][   T73]      ip6_pol_route+0x56f/0x840
[ 6369.386260][   T73]      fib6_rule_lookup+0x456/0x630
[ 6369.386260][   T73]      ip6_route_input+0x59c/0xa50
[ 6369.386260][   T73]      ipv6_rcv+0x397/0x810
[ 6369.386260][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6369.386260][   T73]      process_backlog+0x101/0x620
[ 6369.386260][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6369.386260][   T73]      net_rx_action+0x495/0xbe0
[ 6369.386260][   T73]      __do_softirq+0x1b5/0x7f6
[ 6369.386260][   T73] 
[ 6369.387918][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6369.387918][   T73]      netdev_get_by_index+0x5e/0x80
[ 6369.387918][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6369.387918][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6369.387918][   T73]      ip6_route_add+0x1c/0x140
[ 6369.387918][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6369.387918][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6369.387918][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6369.387918][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6369.387918][   T73]      netlink_rcv_skb+0x130/0x360
[ 6369.387918][   T73]      netlink_unicast+0x449/0x710
[ 6369.387918][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6369.387918][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6369.387918][   T73]      ___sys_sendmsg+0xee/0x170
[ 6369.387918][   T73]      __sys_sendmsg+0xcd/0x170
[ 6369.387918][   T73]      do_syscall_64+0xc6/0x1e0
[ 6369.387918][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6369.387918][   T73] 
[ 6369.389959][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6369.389959][   T73]      netdev_get_by_index+0x5e/0x80
[ 6369.389959][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6369.389959][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6369.389959][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6369.389959][   T73]      ipv6_add_addr+0x411/0x2000
[ 6369.389959][   T73]      inet6_addr_add+0x30e/0xa40
[ 6369.389959][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6369.389959][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6369.389959][   T73]      netlink_rcv_skb+0x130/0x360
[ 6369.389959][   T73]      netlink_unicast+0x449/0x710
[ 6369.389959][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6369.389959][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6369.389959][   T73]      ___sys_sendmsg+0xee/0x170
[ 6369.389959][   T73]      __sys_sendmsg+0xcd/0x170
[ 6369.389959][   T73]      do_syscall_64+0xc6/0x1e0
[ 6369.389959][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6369.389959][   T73] 
[ 6369.391982][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6369.391982][   T73]      netdev_get_by_index+0x5e/0x80
[ 6369.391982][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6369.391982][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6369.391982][   T73]      ip6_route_add+0x1c/0x140
[ 6369.391982][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6369.391982][   T73]      addrconf_add_dev+0xe2/0x170
[ 6369.391982][   T73]      inet6_addr_add+0x12f/0xa40
[ 6369.391982][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6369.391982][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6369.391982][   T73]      netlink_rcv_skb+0x130/0x360
[ 6369.391982][   T73]      netlink_unicast+0x449/0x710
[ 6369.391982][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6369.391982][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6369.391982][   T73]      ___sys_sendmsg+0xee/0x170
[ 6369.391982][   T73]      __sys_sendmsg+0xcd/0x170
[ 6369.391982][   T73]      do_syscall_64+0xc6/0x1e0
[ 6369.391982][   T73] 
[ 6369.393973][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6369.393973][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6369.393973][   T73]      ipv6_find_idev+0x102/0x170
[ 6369.393973][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6369.393973][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6369.393973][   T73]      netlink_rcv_skb+0x130/0x360
[ 6369.393973][   T73]      netlink_unicast+0x449/0x710
[ 6369.393973][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6369.393973][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6369.393973][   T73]      ___sys_sendmsg+0xee/0x170
[ 6369.393973][   T73]      __sys_sendmsg+0xcd/0x170
[ 6369.393973][   T73]      do_syscall_64+0xc6/0x1e0
[ 6369.393973][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6369.393973][   T73] 
[ 6369.395540][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6369.395540][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6369.395540][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6369.395540][   T73]      ipv6_find_idev+0x102/0x170
[ 6369.395540][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6369.395540][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6369.395540][   T73]      netlink_rcv_skb+0x130/0x360
[ 6369.395540][   T73]      netlink_unicast+0x449/0x710
[ 6369.395540][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6369.395540][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6369.395540][   T73]      ___sys_sendmsg+0xee/0x170
[ 6369.395540][   T73]      __sys_sendmsg+0xcd/0x170
[ 6369.395540][   T73]      do_syscall_64+0xc6/0x1e0
[ 6369.395540][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6369.395540][   T73] 
[ 6369.397257][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6369.397535][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6369.397535][   T73]      netdev_get_by_index+0x5e/0x80
[ 6369.397535][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6369.397535][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6369.397535][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6369.397535][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6369.397535][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6369.397535][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6369.397535][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6369.397535][   T73]      addrconf_dad_begin+0x310/0x670
[ 6369.397535][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6369.397535][   T73]      process_one_work+0x84d/0x18a0
[ 6369.397535][   T73]      worker_thread+0x587/0xd30
[ 6369.397535][   T73]      kthread+0x28a/0x350
[ 6369.397535][   T73]      ret_from_fork+0x31/0x70
[ 6369.397535][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6369.397535][   T73] 
[ 6369.399468][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6369.399468][   T73]      netdev_get_by_index+0x5e/0x80
[ 6369.399468][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6369.399468][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6369.399468][   T73]      ip6_route_add+0x1c/0x140
[ 6369.399468][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6369.399468][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6369.399468][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6369.399468][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6369.399468][   T73]      netlink_rcv_skb+0x130/0x360
[ 6369.399468][   T73]      netlink_unicast+0x449/0x710
[ 6369.399468][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6369.399468][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6369.399468][   T73]      ___sys_sendmsg+0xee/0x170
[ 6369.399468][   T73]      __sys_sendmsg+0xcd/0x170
[ 6369.399468][   T73]      do_syscall_64+0xc6/0x1e0
[ 6369.399468][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6369.399468][   T73] 
[ 6369.401494][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6369.401494][   T73]      netdev_get_by_index+0x5e/0x80
[ 6369.401494][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6369.401494][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6369.401494][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6369.401494][   T73]      ipv6_add_addr+0x411/0x2000
[ 6369.401494][   T73]      inet6_addr_add+0x30e/0xa40
[ 6369.401494][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6369.401494][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6369.401494][   T73]      netlink_rcv_skb+0x130/0x360
[ 6369.401494][   T73]      netlink_unicast+0x449/0x710
[ 6369.401494][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6369.401494][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6369.401494][   T73]      ___sys_sendmsg+0xee/0x170
[ 6369.401494][   T73]      __sys_sendmsg+0xcd/0x170
[ 6369.401494][   T73]      do_syscall_64+0xc6/0x1e0
[ 6369.401494][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6369.401494][   T73] 
[ 6369.403528][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6369.403528][   T73]      netdev_get_by_index+0x5e/0x80
[ 6369.403528][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6369.403528][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6369.403528][   T73]      ip6_route_add+0x1c/0x140
[ 6369.403528][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6369.403528][   T73]      addrconf_add_dev+0xe2/0x170
[ 6369.403528][   T73]      inet6_addr_add+0x12f/0xa40
[ 6369.403528][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6369.403528][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6369.403528][   T73]      netlink_rcv_skb+0x130/0x360
[ 6369.403528][   T73]      netlink_unicast+0x449/0x710
[ 6369.403528][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6369.403528][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6369.403528][   T73]      ___sys_sendmsg+0xee/0x170
[ 6369.403528][   T73]      __sys_sendmsg+0xcd/0x170
[ 6369.403528][   T73]      do_syscall_64+0xc6/0x1e0
[ 6369.403528][   T73] 
[ 6369.405520][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6369.405520][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6369.405520][   T73]      ipv6_find_idev+0x102/0x170
[ 6369.405520][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6369.405520][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6369.405520][   T73]      netlink_rcv_skb+0x130/0x360
[ 6369.405520][   T73]      netlink_unicast+0x449/0x710
[ 6369.405520][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6369.405520][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6369.405520][   T73]      ___sys_sendmsg+0xee/0x170
[ 6369.405520][   T73]      __sys_sendmsg+0xcd/0x170
[ 6369.405520][   T73]      do_syscall_64+0xc6/0x1e0
[ 6369.405520][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6369.405520][   T73] 
[ 6369.407079][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6369.407079][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6369.407079][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6369.407079][   T73]      ipv6_find_idev+0x102/0x170
[ 6369.407079][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6369.407079][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6369.407079][   T73]      netlink_rcv_skb+0x130/0x360
[ 6369.407079][   T73]      netlink_unicast+0x449/0x710
[ 6369.407079][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6369.407079][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6369.407079][   T73]      ___sys_sendmsg+0xee/0x170
[ 6369.407079][   T73]      __sys_sendmsg+0xcd/0x170
[ 6369.407079][   T73]      do_syscall_64+0xc6/0x1e0
[ 6369.407079][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6369.407079][   T73] 
[ 6369.408796][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6369.409067][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6369.409067][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6369.409067][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6369.409067][   T73]      fib6_nh_init+0xa22/0x1580
[ 6369.409067][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6369.409067][   T73]      ip6_route_add+0x1c/0x140
[ 6369.409067][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6369.409067][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6369.409067][   T73]      netlink_rcv_skb+0x130/0x360
[ 6369.409067][   T73]      netlink_unicast+0x449/0x710
[ 6369.409067][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6369.409067][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6369.409067][   T73]      ___sys_sendmsg+0xee/0x170
[ 6369.409067][   T73]      __sys_sendmsg+0xcd/0x170
[ 6369.409067][   T73]      do_syscall_64+0xc6/0x1e0
[ 6369.409067][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6369.409067][   T73] 
[ 6369.411157][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6369.411157][   T73]      dst_init+0x84/0x4a0
[ 6369.411157][   T73]      dst_alloc+0x97/0x150
[ 6369.411157][   T73]      ip6_dst_alloc+0x23/0x90
[ 6369.411157][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6369.411157][   T73]      ip6_pol_route+0x56f/0x840
[ 6369.411157][   T73]      fib6_rule_lookup+0x456/0x630
[ 6369.411157][   T73]      ip6_route_input+0x59c/0xa50
[ 6369.411157][   T73]      ipv6_rcv+0x397/0x810
[ 6369.411157][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6369.411157][   T73]      process_backlog+0x101/0x620
[ 6369.411157][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6369.411157][   T73]      net_rx_action+0x495/0xbe0
[ 6369.411157][   T73]      __do_softirq+0x1b5/0x7f6
[ 6369.411157][   T73] 
[ 6369.413067][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6369.413067][   T73]      netdev_get_by_index+0x5e/0x80
[ 6369.413067][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6369.413067][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6369.413067][   T73]      ip6_route_add+0x1c/0x140
[ 6369.413067][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6369.413067][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6369.413067][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6369.413067][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6369.413067][   T73]      netlink_rcv_skb+0x130/0x360
[ 6369.413067][   T73]      netlink_unicast+0x449/0x710
[ 6369.413067][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6369.413067][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6369.413067][   T73]      ___sys_sendmsg+0xee/0x170
[ 6369.413067][   T73]      __sys_sendmsg+0xcd/0x170
[ 6369.413067][   T73]      do_syscall_64+0xc6/0x1e0
[ 6369.413067][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6369.413067][   T73] 
[ 6369.415343][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6369.415343][   T73]      netdev_get_by_index+0x5e/0x80
[ 6369.415343][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6369.415343][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6369.415343][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6369.415343][   T73]      ipv6_add_addr+0x411/0x2000
[ 6369.415343][   T73]      inet6_addr_add+0x30e/0xa40
[ 6369.415343][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6369.415343][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6369.415343][   T73]      netlink_rcv_skb+0x130/0x360
[ 6369.415343][   T73]      netlink_unicast+0x449/0x710
[ 6369.415343][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6369.415343][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6369.415343][   T73]      ___sys_sendmsg+0xee/0x170
[ 6369.415343][   T73]      __sys_sendmsg+0xcd/0x170
[ 6369.415343][   T73]      do_syscall_64+0xc6/0x1e0
[ 6369.415343][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6369.415343][   T73] 
[ 6369.417607][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6369.417607][   T73]      netdev_get_by_index+0x5e/0x80
[ 6369.417607][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6369.417607][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6369.417607][   T73]      ip6_route_add+0x1c/0x140
[ 6369.417607][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6369.417607][   T73]      addrconf_add_dev+0xe2/0x170
[ 6369.417607][   T73]      inet6_addr_add+0x12f/0xa40
[ 6369.417607][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6369.417607][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6369.417607][   T73]      netlink_rcv_skb+0x130/0x360
[ 6369.417607][   T73]      netlink_unicast+0x449/0x710
[ 6369.417607][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6369.417607][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6369.417607][   T73]      ___sys_sendmsg+0xee/0x170
[ 6369.417607][   T73]      __sys_sendmsg+0xcd/0x170
[ 6369.417607][   T73]      do_syscall_64+0xc6/0x1e0
[ 6369.417607][   T73] 
[ 6369.419843][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6369.419843][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6369.419843][   T73]      ipv6_find_idev+0x102/0x170
[ 6369.419843][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6369.419843][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6369.419843][   T73]      netlink_rcv_skb+0x130/0x360
[ 6369.419843][   T73]      netlink_unicast+0x449/0x710
[ 6369.419843][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6369.419843][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6369.419843][   T73]      ___sys_sendmsg+0xee/0x170
[ 6369.419843][   T73]      __sys_sendmsg+0xcd/0x170
[ 6369.419843][   T73]      do_syscall_64+0xc6/0x1e0
[ 6369.419843][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6369.419843][   T73] 
[ 6369.421644][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6369.421644][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6369.421644][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6369.421644][   T73]      ipv6_find_idev+0x102/0x170
[ 6369.421644][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6369.421644][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6369.421644][   T73]      netlink_rcv_skb+0x130/0x360
[ 6369.421644][   T73]      netlink_unicast+0x449/0x710
[ 6369.421644][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6369.421644][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6369.421644][   T73]      ___sys_sendmsg+0xee/0x170
[ 6369.421644][   T73]      __sys_sendmsg+0xcd/0x170
[ 6369.421644][   T73]      do_syscall_64+0xc6/0x1e0
[ 6369.421644][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6369.421644][   T73] 
[ 6369.423533][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6369.424251][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6369.424251][   T73]      netdev_get_by_index+0x5e/0x80
[ 6369.424251][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6369.424251][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6369.424251][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6369.424251][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6369.424251][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6369.424251][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6369.424251][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6369.424251][   T73]      addrconf_dad_begin+0x310/0x670
[ 6369.424251][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6369.424251][   T73]      process_one_work+0x84d/0x18a0
[ 6369.424251][   T73]      worker_thread+0x587/0xd30
[ 6369.424251][   T73]      kthread+0x28a/0x350
[ 6369.424251][   T73]      ret_from_fork+0x31/0x70
[ 6369.424251][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6369.424251][   T73] 
[ 6369.426185][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6369.426185][   T73]      netdev_get_by_index+0x5e/0x80
[ 6369.426185][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6369.426185][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6369.426185][   T73]      ip6_route_add+0x1c/0x140
[ 6369.426185][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6369.426185][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6369.426185][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6369.426185][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6369.426185][   T73]      netlink_rcv_skb+0x130/0x360
[ 6369.426185][   T73]      netlink_unicast+0x449/0x710
[ 6369.426185][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6369.426185][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6369.426185][   T73]      ___sys_sendmsg+0xee/0x170
[ 6369.426185][   T73]      __sys_sendmsg+0xcd/0x170
[ 6369.426185][   T73]      do_syscall_64+0xc6/0x1e0
[ 6369.426185][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6369.426185][   T73] 
[ 6369.428298][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6369.428298][   T73]      netdev_get_by_index+0x5e/0x80
[ 6369.428298][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6369.428298][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6369.428298][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6369.428298][   T73]      ipv6_add_addr+0x411/0x2000
[ 6369.428298][   T73]      inet6_addr_add+0x30e/0xa40
[ 6369.428298][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6369.428298][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6369.428298][   T73]      netlink_rcv_skb+0x130/0x360
[ 6369.428298][   T73]      netlink_unicast+0x449/0x710
[ 6369.428298][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6369.428298][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6369.428298][   T73]      ___sys_sendmsg+0xee/0x170
[ 6369.428298][   T73]      __sys_sendmsg+0xcd/0x170
[ 6369.428298][   T73]      do_syscall_64+0xc6/0x1e0
[ 6369.428298][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6369.428298][   T73] 
[ 6369.430465][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6369.430465][   T73]      netdev_get_by_index+0x5e/0x80
[ 6369.430465][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6369.430465][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6369.430465][   T73]      ip6_route_add+0x1c/0x140
[ 6369.430465][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6369.430465][   T73]      addrconf_add_dev+0xe2/0x170
[ 6369.430465][   T73]      inet6_addr_add+0x12f/0xa40
[ 6369.430465][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6369.430465][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6369.430465][   T73]      netlink_rcv_skb+0x130/0x360
[ 6369.430465][   T73]      netlink_unicast+0x449/0x710
[ 6369.430465][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6369.430465][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6369.430465][   T73]      ___sys_sendmsg+0xee/0x170
[ 6369.430465][   T73]      __sys_sendmsg+0xcd/0x170
[ 6369.430465][   T73]      do_syscall_64+0xc6/0x1e0
[ 6369.430465][   T73] 
[ 6369.432582][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6369.432582][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6369.432582][   T73]      ipv6_find_idev+0x102/0x170
[ 6369.432582][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6369.432582][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6369.432582][   T73]      netlink_rcv_skb+0x130/0x360
[ 6369.432582][   T73]      netlink_unicast+0x449/0x710
[ 6369.432582][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6369.432582][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6369.432582][   T73]      ___sys_sendmsg+0xee/0x170
[ 6369.432582][   T73]      __sys_sendmsg+0xcd/0x170
[ 6369.432582][   T73]      do_syscall_64+0xc6/0x1e0
[ 6369.432582][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6369.432582][   T73] 
[ 6369.434392][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6369.434392][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6369.434392][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6369.434392][   T73]      ipv6_find_idev+0x102/0x170
[ 6369.434392][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6369.434392][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6369.434392][   T73]      netlink_rcv_skb+0x130/0x360
[ 6369.434392][   T73]      netlink_unicast+0x449/0x710
[ 6369.434392][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6369.434392][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6369.434392][   T73]      ___sys_sendmsg+0xee/0x170
[ 6369.434392][   T73]      __sys_sendmsg+0xcd/0x170
[ 6369.434392][   T73]      do_syscall_64+0xc6/0x1e0
[ 6369.434392][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6369.434392][   T73] 
[ 6379.671750][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6379.672230][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6379.672230][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6379.672230][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6379.672230][   T73]      fib6_nh_init+0xa22/0x1580
[ 6379.672230][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6379.672230][   T73]      ip6_route_add+0x1c/0x140
[ 6379.672230][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6379.672230][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6379.672230][   T73]      netlink_rcv_skb+0x130/0x360
[ 6379.672230][   T73]      netlink_unicast+0x449/0x710
[ 6379.672230][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6379.672230][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6379.672230][   T73]      ___sys_sendmsg+0xee/0x170
[ 6379.672230][   T73]      __sys_sendmsg+0xcd/0x170
[ 6379.672230][   T73]      do_syscall_64+0xc6/0x1e0
[ 6379.672230][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6379.672230][   T73] 
[ 6379.674165][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6379.674165][   T73]      dst_init+0x84/0x4a0
[ 6379.674165][   T73]      dst_alloc+0x97/0x150
[ 6379.674165][   T73]      ip6_dst_alloc+0x23/0x90
[ 6379.674165][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6379.674165][   T73]      ip6_pol_route+0x56f/0x840
[ 6379.674165][   T73]      fib6_rule_lookup+0x456/0x630
[ 6379.674165][   T73]      ip6_route_input+0x59c/0xa50
[ 6379.674165][   T73]      ipv6_rcv+0x397/0x810
[ 6379.674165][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6379.674165][   T73]      process_backlog+0x101/0x620
[ 6379.674165][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6379.674165][   T73]      net_rx_action+0x495/0xbe0
[ 6379.674165][   T73]      __do_softirq+0x1b5/0x7f6
[ 6379.674165][   T73] 
[ 6379.675847][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6379.675847][   T73]      netdev_get_by_index+0x5e/0x80
[ 6379.675847][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6379.675847][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6379.675847][   T73]      ip6_route_add+0x1c/0x140
[ 6379.675847][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6379.675847][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6379.675847][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6379.675847][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6379.675847][   T73]      netlink_rcv_skb+0x130/0x360
[ 6379.675847][   T73]      netlink_unicast+0x449/0x710
[ 6379.675847][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6379.675847][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6379.675847][   T73]      ___sys_sendmsg+0xee/0x170
[ 6379.675847][   T73]      __sys_sendmsg+0xcd/0x170
[ 6379.675847][   T73]      do_syscall_64+0xc6/0x1e0
[ 6379.675847][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6379.675847][   T73] 
[ 6379.677868][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6379.677868][   T73]      netdev_get_by_index+0x5e/0x80
[ 6379.677868][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6379.677868][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6379.677868][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6379.677868][   T73]      ipv6_add_addr+0x411/0x2000
[ 6379.677868][   T73]      inet6_addr_add+0x30e/0xa40
[ 6379.677868][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6379.677868][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6379.677868][   T73]      netlink_rcv_skb+0x130/0x360
[ 6379.677868][   T73]      netlink_unicast+0x449/0x710
[ 6379.677868][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6379.677868][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6379.677868][   T73]      ___sys_sendmsg+0xee/0x170
[ 6379.677868][   T73]      __sys_sendmsg+0xcd/0x170
[ 6379.677868][   T73]      do_syscall_64+0xc6/0x1e0
[ 6379.677868][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6379.677868][   T73] 
[ 6379.680003][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6379.680003][   T73]      netdev_get_by_index+0x5e/0x80
[ 6379.680003][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6379.680003][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6379.680003][   T73]      ip6_route_add+0x1c/0x140
[ 6379.680003][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6379.680003][   T73]      addrconf_add_dev+0xe2/0x170
[ 6379.680003][   T73]      inet6_addr_add+0x12f/0xa40
[ 6379.680003][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6379.680003][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6379.680003][   T73]      netlink_rcv_skb+0x130/0x360
[ 6379.680003][   T73]      netlink_unicast+0x449/0x710
[ 6379.680003][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6379.680003][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6379.680003][   T73]      ___sys_sendmsg+0xee/0x170
[ 6379.680003][   T73]      __sys_sendmsg+0xcd/0x170
[ 6379.680003][   T73]      do_syscall_64+0xc6/0x1e0
[ 6379.680003][   T73] 
[ 6379.681998][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6379.681998][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6379.681998][   T73]      ipv6_find_idev+0x102/0x170
[ 6379.681998][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6379.681998][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6379.681998][   T73]      netlink_rcv_skb+0x130/0x360
[ 6379.681998][   T73]      netlink_unicast+0x449/0x710
[ 6379.681998][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6379.681998][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6379.681998][   T73]      ___sys_sendmsg+0xee/0x170
[ 6379.681998][   T73]      __sys_sendmsg+0xcd/0x170
[ 6379.681998][   T73]      do_syscall_64+0xc6/0x1e0
[ 6379.681998][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6379.681998][   T73] 
[ 6379.683568][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6379.683568][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6379.683568][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6379.683568][   T73]      ipv6_find_idev+0x102/0x170
[ 6379.683568][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6379.683568][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6379.683568][   T73]      netlink_rcv_skb+0x130/0x360
[ 6379.683568][   T73]      netlink_unicast+0x449/0x710
[ 6379.683568][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6379.683568][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6379.683568][   T73]      ___sys_sendmsg+0xee/0x170
[ 6379.683568][   T73]      __sys_sendmsg+0xcd/0x170
[ 6379.683568][   T73]      do_syscall_64+0xc6/0x1e0
[ 6379.683568][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6379.683568][   T73] 
[ 6379.685309][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6379.685598][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6379.685598][   T73]      netdev_get_by_index+0x5e/0x80
[ 6379.685598][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6379.685598][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6379.685598][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6379.685598][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6379.685598][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6379.685598][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6379.685598][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6379.685598][   T73]      addrconf_dad_begin+0x310/0x670
[ 6379.685598][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6379.685598][   T73]      process_one_work+0x84d/0x18a0
[ 6379.685598][   T73]      worker_thread+0x587/0xd30
[ 6379.685598][   T73]      kthread+0x28a/0x350
[ 6379.685598][   T73]      ret_from_fork+0x31/0x70
[ 6379.685598][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6379.685598][   T73] 
[ 6379.687540][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6379.687540][   T73]      netdev_get_by_index+0x5e/0x80
[ 6379.687540][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6379.687540][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6379.687540][   T73]      ip6_route_add+0x1c/0x140
[ 6379.687540][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6379.687540][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6379.687540][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6379.687540][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6379.687540][   T73]      netlink_rcv_skb+0x130/0x360
[ 6379.687540][   T73]      netlink_unicast+0x449/0x710
[ 6379.687540][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6379.687540][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6379.687540][   T73]      ___sys_sendmsg+0xee/0x170
[ 6379.687540][   T73]      __sys_sendmsg+0xcd/0x170
[ 6379.687540][   T73]      do_syscall_64+0xc6/0x1e0
[ 6379.687540][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6379.687540][   T73] 
[ 6379.689575][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6379.689575][   T73]      netdev_get_by_index+0x5e/0x80
[ 6379.689575][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6379.689575][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6379.689575][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6379.689575][   T73]      ipv6_add_addr+0x411/0x2000
[ 6379.689575][   T73]      inet6_addr_add+0x30e/0xa40
[ 6379.689575][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6379.689575][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6379.689575][   T73]      netlink_rcv_skb+0x130/0x360
[ 6379.689575][   T73]      netlink_unicast+0x449/0x710
[ 6379.689575][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6379.689575][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6379.689575][   T73]      ___sys_sendmsg+0xee/0x170
[ 6379.689575][   T73]      __sys_sendmsg+0xcd/0x170
[ 6379.689575][   T73]      do_syscall_64+0xc6/0x1e0
[ 6379.689575][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6379.689575][   T73] 
[ 6379.691603][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6379.691603][   T73]      netdev_get_by_index+0x5e/0x80
[ 6379.691603][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6379.691603][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6379.691603][   T73]      ip6_route_add+0x1c/0x140
[ 6379.691603][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6379.691603][   T73]      addrconf_add_dev+0xe2/0x170
[ 6379.691603][   T73]      inet6_addr_add+0x12f/0xa40
[ 6379.691603][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6379.691603][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6379.691603][   T73]      netlink_rcv_skb+0x130/0x360
[ 6379.691603][   T73]      netlink_unicast+0x449/0x710
[ 6379.691603][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6379.691603][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6379.691603][   T73]      ___sys_sendmsg+0xee/0x170
[ 6379.691603][   T73]      __sys_sendmsg+0xcd/0x170
[ 6379.691603][   T73]      do_syscall_64+0xc6/0x1e0
[ 6379.691603][   T73] 
[ 6379.693594][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6379.693594][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6379.693594][   T73]      ipv6_find_idev+0x102/0x170
[ 6379.693594][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6379.693594][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6379.693594][   T73]      netlink_rcv_skb+0x130/0x360
[ 6379.693594][   T73]      netlink_unicast+0x449/0x710
[ 6379.693594][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6379.693594][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6379.693594][   T73]      ___sys_sendmsg+0xee/0x170
[ 6379.693594][   T73]      __sys_sendmsg+0xcd/0x170
[ 6379.693594][   T73]      do_syscall_64+0xc6/0x1e0
[ 6379.693594][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6379.693594][   T73] 
[ 6379.695160][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6379.695160][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6379.695160][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6379.695160][   T73]      ipv6_find_idev+0x102/0x170
[ 6379.695160][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6379.695160][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6379.695160][   T73]      netlink_rcv_skb+0x130/0x360
[ 6379.695160][   T73]      netlink_unicast+0x449/0x710
[ 6379.695160][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6379.695160][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6379.695160][   T73]      ___sys_sendmsg+0xee/0x170
[ 6379.695160][   T73]      __sys_sendmsg+0xcd/0x170
[ 6379.695160][   T73]      do_syscall_64+0xc6/0x1e0
[ 6379.695160][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6379.695160][   T73] 
[ 6379.696873][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6379.697145][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6379.697145][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6379.697145][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6379.697145][   T73]      fib6_nh_init+0xa22/0x1580
[ 6379.697145][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6379.697145][   T73]      ip6_route_add+0x1c/0x140
[ 6379.697145][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6379.697145][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6379.697145][   T73]      netlink_rcv_skb+0x130/0x360
[ 6379.697145][   T73]      netlink_unicast+0x449/0x710
[ 6379.697145][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6379.697145][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6379.697145][   T73]      ___sys_sendmsg+0xee/0x170
[ 6379.697145][   T73]      __sys_sendmsg+0xcd/0x170
[ 6379.697145][   T73]      do_syscall_64+0xc6/0x1e0
[ 6379.697145][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6379.697145][   T73] 
[ 6379.699231][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6379.699231][   T73]      dst_init+0x84/0x4a0
[ 6379.699231][   T73]      dst_alloc+0x97/0x150
[ 6379.699231][   T73]      ip6_dst_alloc+0x23/0x90
[ 6379.699231][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6379.699231][   T73]      ip6_pol_route+0x56f/0x840
[ 6379.699231][   T73]      fib6_rule_lookup+0x456/0x630
[ 6379.699231][   T73]      ip6_route_input+0x59c/0xa50
[ 6379.699231][   T73]      ipv6_rcv+0x397/0x810
[ 6379.699231][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6379.699231][   T73]      process_backlog+0x101/0x620
[ 6379.699231][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6379.699231][   T73]      net_rx_action+0x495/0xbe0
[ 6379.699231][   T73]      __do_softirq+0x1b5/0x7f6
[ 6379.699231][   T73] 
[ 6379.701134][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6379.701134][   T73]      netdev_get_by_index+0x5e/0x80
[ 6379.701134][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6379.701134][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6379.701134][   T73]      ip6_route_add+0x1c/0x140
[ 6379.701134][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6379.701134][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6379.701134][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6379.701134][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6379.701134][   T73]      netlink_rcv_skb+0x130/0x360
[ 6379.701134][   T73]      netlink_unicast+0x449/0x710
[ 6379.701134][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6379.701134][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6379.701134][   T73]      ___sys_sendmsg+0xee/0x170
[ 6379.701134][   T73]      __sys_sendmsg+0xcd/0x170
[ 6379.701134][   T73]      do_syscall_64+0xc6/0x1e0
[ 6379.701134][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6379.701134][   T73] 
[ 6379.703400][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6379.703400][   T73]      netdev_get_by_index+0x5e/0x80
[ 6379.703400][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6379.703400][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6379.703400][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6379.703400][   T73]      ipv6_add_addr+0x411/0x2000
[ 6379.703400][   T73]      inet6_addr_add+0x30e/0xa40
[ 6379.703400][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6379.703400][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6379.703400][   T73]      netlink_rcv_skb+0x130/0x360
[ 6379.703400][   T73]      netlink_unicast+0x449/0x710
[ 6379.703400][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6379.703400][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6379.703400][   T73]      ___sys_sendmsg+0xee/0x170
[ 6379.703400][   T73]      __sys_sendmsg+0xcd/0x170
[ 6379.703400][   T73]      do_syscall_64+0xc6/0x1e0
[ 6379.703400][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6379.703400][   T73] 
[ 6379.705676][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6379.705676][   T73]      netdev_get_by_index+0x5e/0x80
[ 6379.705676][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6379.705676][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6379.705676][   T73]      ip6_route_add+0x1c/0x140
[ 6379.705676][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6379.705676][   T73]      addrconf_add_dev+0xe2/0x170
[ 6379.705676][   T73]      inet6_addr_add+0x12f/0xa40
[ 6379.705676][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6379.705676][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6379.705676][   T73]      netlink_rcv_skb+0x130/0x360
[ 6379.705676][   T73]      netlink_unicast+0x449/0x710
[ 6379.705676][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6379.705676][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6379.705676][   T73]      ___sys_sendmsg+0xee/0x170
[ 6379.705676][   T73]      __sys_sendmsg+0xcd/0x170
[ 6379.705676][   T73]      do_syscall_64+0xc6/0x1e0
[ 6379.705676][   T73] 
[ 6379.707915][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6379.707915][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6379.707915][   T73]      ipv6_find_idev+0x102/0x170
[ 6379.707915][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6379.707915][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6379.707915][   T73]      netlink_rcv_skb+0x130/0x360
[ 6379.707915][   T73]      netlink_unicast+0x449/0x710
[ 6379.707915][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6379.707915][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6379.707915][   T73]      ___sys_sendmsg+0xee/0x170
[ 6379.707915][   T73]      __sys_sendmsg+0xcd/0x170
[ 6379.707915][   T73]      do_syscall_64+0xc6/0x1e0
[ 6379.707915][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6379.707915][   T73] 
[ 6379.709717][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6379.709717][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6379.709717][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6379.709717][   T73]      ipv6_find_idev+0x102/0x170
[ 6379.709717][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6379.709717][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6379.709717][   T73]      netlink_rcv_skb+0x130/0x360
[ 6379.709717][   T73]      netlink_unicast+0x449/0x710
[ 6379.709717][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6379.709717][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6379.709717][   T73]      ___sys_sendmsg+0xee/0x170
[ 6379.709717][   T73]      __sys_sendmsg+0xcd/0x170
[ 6379.709717][   T73]      do_syscall_64+0xc6/0x1e0
[ 6379.709717][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6379.709717][   T73] 
[ 6379.711606][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6379.712317][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6379.712317][   T73]      netdev_get_by_index+0x5e/0x80
[ 6379.712317][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6379.712317][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6379.712317][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6379.712317][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6379.712317][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6379.712317][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6379.712317][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6379.712317][   T73]      addrconf_dad_begin+0x310/0x670
[ 6379.712317][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6379.712317][   T73]      process_one_work+0x84d/0x18a0
[ 6379.712317][   T73]      worker_thread+0x587/0xd30
[ 6379.712317][   T73]      kthread+0x28a/0x350
[ 6379.712317][   T73]      ret_from_fork+0x31/0x70
[ 6379.712317][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6379.712317][   T73] 
[ 6379.714762][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6379.714762][   T73]      netdev_get_by_index+0x5e/0x80
[ 6379.714762][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6379.714762][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6379.714762][   T73]      ip6_route_add+0x1c/0x140
[ 6379.714762][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6379.714762][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6379.714762][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6379.714762][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6379.714762][   T73]      netlink_rcv_skb+0x130/0x360
[ 6379.714762][   T73]      netlink_unicast+0x449/0x710
[ 6379.714762][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6379.714762][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6379.714762][   T73]      ___sys_sendmsg+0xee/0x170
[ 6379.714762][   T73]      __sys_sendmsg+0xcd/0x170
[ 6379.714762][   T73]      do_syscall_64+0xc6/0x1e0
[ 6379.714762][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6379.714762][   T73] 
[ 6379.719177][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6379.719177][   T73]      netdev_get_by_index+0x5e/0x80
[ 6379.719177][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6379.719177][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6379.719177][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6379.719177][   T73]      ipv6_add_addr+0x411/0x2000
[ 6379.719177][   T73]      inet6_addr_add+0x30e/0xa40
[ 6379.719177][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6379.719177][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6379.719177][   T73]      netlink_rcv_skb+0x130/0x360
[ 6379.719177][   T73]      netlink_unicast+0x449/0x710
[ 6379.719177][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6379.719177][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6379.719177][   T73]      ___sys_sendmsg+0xee/0x170
[ 6379.719177][   T73]      __sys_sendmsg+0xcd/0x170
[ 6379.719177][   T73]      do_syscall_64+0xc6/0x1e0
[ 6379.719177][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6379.719177][   T73] 
[ 6379.721465][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6379.721465][   T73]      netdev_get_by_index+0x5e/0x80
[ 6379.721465][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6379.721465][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6379.721465][   T73]      ip6_route_add+0x1c/0x140
[ 6379.721465][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6379.721465][   T73]      addrconf_add_dev+0xe2/0x170
[ 6379.721465][   T73]      inet6_addr_add+0x12f/0xa40
[ 6379.721465][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6379.721465][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6379.721465][   T73]      netlink_rcv_skb+0x130/0x360
[ 6379.721465][   T73]      netlink_unicast+0x449/0x710
[ 6379.721465][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6379.721465][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6379.721465][   T73]      ___sys_sendmsg+0xee/0x170
[ 6379.721465][   T73]      __sys_sendmsg+0xcd/0x170
[ 6379.721465][   T73]      do_syscall_64+0xc6/0x1e0
[ 6379.721465][   T73] 
[ 6379.723633][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6379.723633][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6379.723633][   T73]      ipv6_find_idev+0x102/0x170
[ 6379.723633][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6379.723633][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6379.723633][   T73]      netlink_rcv_skb+0x130/0x360
[ 6379.723633][   T73]      netlink_unicast+0x449/0x710
[ 6379.723633][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6379.723633][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6379.723633][   T73]      ___sys_sendmsg+0xee/0x170
[ 6379.723633][   T73]      __sys_sendmsg+0xcd/0x170
[ 6379.723633][   T73]      do_syscall_64+0xc6/0x1e0
[ 6379.723633][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6379.723633][   T73] 
[ 6379.725449][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6379.725449][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6379.725449][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6379.725449][   T73]      ipv6_find_idev+0x102/0x170
[ 6379.725449][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6379.725449][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6379.725449][   T73]      netlink_rcv_skb+0x130/0x360
[ 6379.725449][   T73]      netlink_unicast+0x449/0x710
[ 6379.725449][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6379.725449][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6379.725449][   T73]      ___sys_sendmsg+0xee/0x170
[ 6379.725449][   T73]      __sys_sendmsg+0xcd/0x170
[ 6379.725449][   T73]      do_syscall_64+0xc6/0x1e0
[ 6379.725449][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6379.725449][   T73] 
[ 6389.967682][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6389.968161][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6389.968161][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6389.968161][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6389.968161][   T73]      fib6_nh_init+0xa22/0x1580
[ 6389.968161][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6389.968161][   T73]      ip6_route_add+0x1c/0x140
[ 6389.968161][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6389.968161][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6389.968161][   T73]      netlink_rcv_skb+0x130/0x360
[ 6389.968161][   T73]      netlink_unicast+0x449/0x710
[ 6389.968161][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6389.968161][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6389.968161][   T73]      ___sys_sendmsg+0xee/0x170
[ 6389.968161][   T73]      __sys_sendmsg+0xcd/0x170
[ 6389.968161][   T73]      do_syscall_64+0xc6/0x1e0
[ 6389.968161][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6389.968161][   T73] 
[ 6389.970078][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6389.970078][   T73]      dst_init+0x84/0x4a0
[ 6389.970078][   T73]      dst_alloc+0x97/0x150
[ 6389.970078][   T73]      ip6_dst_alloc+0x23/0x90
[ 6389.970078][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6389.970078][   T73]      ip6_pol_route+0x56f/0x840
[ 6389.970078][   T73]      fib6_rule_lookup+0x456/0x630
[ 6389.970078][   T73]      ip6_route_input+0x59c/0xa50
[ 6389.970078][   T73]      ipv6_rcv+0x397/0x810
[ 6389.970078][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6389.970078][   T73]      process_backlog+0x101/0x620
[ 6389.970078][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6389.970078][   T73]      net_rx_action+0x495/0xbe0
[ 6389.970078][   T73]      __do_softirq+0x1b5/0x7f6
[ 6389.970078][   T73] 
[ 6389.971741][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6389.971741][   T73]      netdev_get_by_index+0x5e/0x80
[ 6389.971741][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6389.971741][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6389.971741][   T73]      ip6_route_add+0x1c/0x140
[ 6389.971741][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6389.971741][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6389.971741][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6389.971741][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6389.971741][   T73]      netlink_rcv_skb+0x130/0x360
[ 6389.971741][   T73]      netlink_unicast+0x449/0x710
[ 6389.971741][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6389.971741][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6389.971741][   T73]      ___sys_sendmsg+0xee/0x170
[ 6389.971741][   T73]      __sys_sendmsg+0xcd/0x170
[ 6389.971741][   T73]      do_syscall_64+0xc6/0x1e0
[ 6389.971741][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6389.971741][   T73] 
[ 6389.974410][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6389.974410][   T73]      netdev_get_by_index+0x5e/0x80
[ 6389.974410][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6389.974410][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6389.974410][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6389.974410][   T73]      ipv6_add_addr+0x411/0x2000
[ 6389.974410][   T73]      inet6_addr_add+0x30e/0xa40
[ 6389.974410][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6389.974410][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6389.974410][   T73]      netlink_rcv_skb+0x130/0x360
[ 6389.974410][   T73]      netlink_unicast+0x449/0x710
[ 6389.974410][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6389.974410][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6389.974410][   T73]      ___sys_sendmsg+0xee/0x170
[ 6389.974410][   T73]      __sys_sendmsg+0xcd/0x170
[ 6389.974410][   T73]      do_syscall_64+0xc6/0x1e0
[ 6389.974410][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6389.974410][   T73] 
[ 6389.976439][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6389.976439][   T73]      netdev_get_by_index+0x5e/0x80
[ 6389.976439][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6389.976439][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6389.976439][   T73]      ip6_route_add+0x1c/0x140
[ 6389.976439][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6389.976439][   T73]      addrconf_add_dev+0xe2/0x170
[ 6389.976439][   T73]      inet6_addr_add+0x12f/0xa40
[ 6389.976439][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6389.976439][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6389.976439][   T73]      netlink_rcv_skb+0x130/0x360
[ 6389.976439][   T73]      netlink_unicast+0x449/0x710
[ 6389.976439][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6389.976439][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6389.976439][   T73]      ___sys_sendmsg+0xee/0x170
[ 6389.976439][   T73]      __sys_sendmsg+0xcd/0x170
[ 6389.976439][   T73]      do_syscall_64+0xc6/0x1e0
[ 6389.976439][   T73] 
[ 6389.978417][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6389.978417][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6389.978417][   T73]      ipv6_find_idev+0x102/0x170
[ 6389.978417][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6389.978417][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6389.978417][   T73]      netlink_rcv_skb+0x130/0x360
[ 6389.978417][   T73]      netlink_unicast+0x449/0x710
[ 6389.978417][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6389.978417][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6389.978417][   T73]      ___sys_sendmsg+0xee/0x170
[ 6389.978417][   T73]      __sys_sendmsg+0xcd/0x170
[ 6389.978417][   T73]      do_syscall_64+0xc6/0x1e0
[ 6389.978417][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6389.978417][   T73] 
[ 6389.979968][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6389.979968][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6389.979968][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6389.979968][   T73]      ipv6_find_idev+0x102/0x170
[ 6389.979968][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6389.979968][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6389.979968][   T73]      netlink_rcv_skb+0x130/0x360
[ 6389.979968][   T73]      netlink_unicast+0x449/0x710
[ 6389.979968][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6389.979968][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6389.979968][   T73]      ___sys_sendmsg+0xee/0x170
[ 6389.979968][   T73]      __sys_sendmsg+0xcd/0x170
[ 6389.979968][   T73]      do_syscall_64+0xc6/0x1e0
[ 6389.979968][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6389.979968][   T73] 
[ 6389.981680][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6389.981964][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6389.981964][   T73]      netdev_get_by_index+0x5e/0x80
[ 6389.981964][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6389.981964][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6389.981964][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6389.981964][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6389.981964][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6389.981964][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6389.981964][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6389.981964][   T73]      addrconf_dad_begin+0x310/0x670
[ 6389.981964][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6389.981964][   T73]      process_one_work+0x84d/0x18a0
[ 6389.981964][   T73]      worker_thread+0x587/0xd30
[ 6389.981964][   T73]      kthread+0x28a/0x350
[ 6389.981964][   T73]      ret_from_fork+0x31/0x70
[ 6389.981964][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6389.981964][   T73] 
[ 6389.983887][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6389.983887][   T73]      netdev_get_by_index+0x5e/0x80
[ 6389.983887][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6389.983887][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6389.983887][   T73]      ip6_route_add+0x1c/0x140
[ 6389.983887][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6389.983887][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6389.983887][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6389.983887][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6389.983887][   T73]      netlink_rcv_skb+0x130/0x360
[ 6389.983887][   T73]      netlink_unicast+0x449/0x710
[ 6389.983887][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6389.983887][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6389.983887][   T73]      ___sys_sendmsg+0xee/0x170
[ 6389.983887][   T73]      __sys_sendmsg+0xcd/0x170
[ 6389.983887][   T73]      do_syscall_64+0xc6/0x1e0
[ 6389.983887][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6389.983887][   T73] 
[ 6389.986562][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6389.986562][   T73]      netdev_get_by_index+0x5e/0x80
[ 6389.986562][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6389.986562][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6389.986562][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6389.986562][   T73]      ipv6_add_addr+0x411/0x2000
[ 6389.986562][   T73]      inet6_addr_add+0x30e/0xa40
[ 6389.986562][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6389.986562][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6389.986562][   T73]      netlink_rcv_skb+0x130/0x360
[ 6389.986562][   T73]      netlink_unicast+0x449/0x710
[ 6389.986562][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6389.986562][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6389.986562][   T73]      ___sys_sendmsg+0xee/0x170
[ 6389.986562][   T73]      __sys_sendmsg+0xcd/0x170
[ 6389.986562][   T73]      do_syscall_64+0xc6/0x1e0
[ 6389.986562][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6389.986562][   T73] 
[ 6389.988583][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6389.988583][   T73]      netdev_get_by_index+0x5e/0x80
[ 6389.988583][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6389.988583][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6389.988583][   T73]      ip6_route_add+0x1c/0x140
[ 6389.988583][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6389.988583][   T73]      addrconf_add_dev+0xe2/0x170
[ 6389.988583][   T73]      inet6_addr_add+0x12f/0xa40
[ 6389.988583][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6389.988583][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6389.988583][   T73]      netlink_rcv_skb+0x130/0x360
[ 6389.988583][   T73]      netlink_unicast+0x449/0x710
[ 6389.988583][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6389.988583][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6389.988583][   T73]      ___sys_sendmsg+0xee/0x170
[ 6389.988583][   T73]      __sys_sendmsg+0xcd/0x170
[ 6389.988583][   T73]      do_syscall_64+0xc6/0x1e0
[ 6389.988583][   T73] 
[ 6389.990568][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6389.990568][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6389.990568][   T73]      ipv6_find_idev+0x102/0x170
[ 6389.990568][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6389.990568][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6389.990568][   T73]      netlink_rcv_skb+0x130/0x360
[ 6389.990568][   T73]      netlink_unicast+0x449/0x710
[ 6389.990568][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6389.990568][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6389.990568][   T73]      ___sys_sendmsg+0xee/0x170
[ 6389.990568][   T73]      __sys_sendmsg+0xcd/0x170
[ 6389.990568][   T73]      do_syscall_64+0xc6/0x1e0
[ 6389.990568][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6389.990568][   T73] 
[ 6389.992131][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6389.992131][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6389.992131][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6389.992131][   T73]      ipv6_find_idev+0x102/0x170
[ 6389.992131][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6389.992131][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6389.992131][   T73]      netlink_rcv_skb+0x130/0x360
[ 6389.992131][   T73]      netlink_unicast+0x449/0x710
[ 6389.992131][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6389.992131][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6389.992131][   T73]      ___sys_sendmsg+0xee/0x170
[ 6389.992131][   T73]      __sys_sendmsg+0xcd/0x170
[ 6389.992131][   T73]      do_syscall_64+0xc6/0x1e0
[ 6389.992131][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6389.992131][   T73] 
[ 6389.993842][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6389.994146][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6389.994146][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6389.994146][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6389.994146][   T73]      fib6_nh_init+0xa22/0x1580
[ 6389.994146][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6389.994146][   T73]      ip6_route_add+0x1c/0x140
[ 6389.994146][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6389.994146][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6389.994146][   T73]      netlink_rcv_skb+0x130/0x360
[ 6389.994146][   T73]      netlink_unicast+0x449/0x710
[ 6389.994146][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6389.994146][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6389.994146][   T73]      ___sys_sendmsg+0xee/0x170
[ 6389.994146][   T73]      __sys_sendmsg+0xcd/0x170
[ 6389.994146][   T73]      do_syscall_64+0xc6/0x1e0
[ 6389.994146][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6389.994146][   T73] 
[ 6389.996245][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6389.996245][   T73]      dst_init+0x84/0x4a0
[ 6389.996245][   T73]      dst_alloc+0x97/0x150
[ 6389.996245][   T73]      ip6_dst_alloc+0x23/0x90
[ 6389.996245][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6389.996245][   T73]      ip6_pol_route+0x56f/0x840
[ 6389.996245][   T73]      fib6_rule_lookup+0x456/0x630
[ 6389.996245][   T73]      ip6_route_input+0x59c/0xa50
[ 6389.996245][   T73]      ipv6_rcv+0x397/0x810
[ 6389.996245][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6389.996245][   T73]      process_backlog+0x101/0x620
[ 6389.996245][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6389.996245][   T73]      net_rx_action+0x495/0xbe0
[ 6389.996245][   T73]      __do_softirq+0x1b5/0x7f6
[ 6389.996245][   T73] 
[ 6389.998153][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6389.998153][   T73]      netdev_get_by_index+0x5e/0x80
[ 6389.998153][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6389.998153][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6389.998153][   T73]      ip6_route_add+0x1c/0x140
[ 6389.998153][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6389.998153][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6389.998153][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6389.998153][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6389.998153][   T73]      netlink_rcv_skb+0x130/0x360
[ 6389.998153][   T73]      netlink_unicast+0x449/0x710
[ 6389.998153][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6389.998153][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6389.998153][   T73]      ___sys_sendmsg+0xee/0x170
[ 6389.998153][   T73]      __sys_sendmsg+0xcd/0x170
[ 6389.998153][   T73]      do_syscall_64+0xc6/0x1e0
[ 6389.998153][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6389.998153][   T73] 
[ 6390.000422][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6390.000422][   T73]      netdev_get_by_index+0x5e/0x80
[ 6390.000422][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6390.000422][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6390.000422][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6390.000422][   T73]      ipv6_add_addr+0x411/0x2000
[ 6390.000422][   T73]      inet6_addr_add+0x30e/0xa40
[ 6390.000422][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6390.000422][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6390.000422][   T73]      netlink_rcv_skb+0x130/0x360
[ 6390.000422][   T73]      netlink_unicast+0x449/0x710
[ 6390.000422][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6390.000422][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6390.000422][   T73]      ___sys_sendmsg+0xee/0x170
[ 6390.000422][   T73]      __sys_sendmsg+0xcd/0x170
[ 6390.000422][   T73]      do_syscall_64+0xc6/0x1e0
[ 6390.000422][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6390.000422][   T73] 
[ 6390.002668][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6390.002668][   T73]      netdev_get_by_index+0x5e/0x80
[ 6390.002668][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6390.002668][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6390.002668][   T73]      ip6_route_add+0x1c/0x140
[ 6390.002668][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6390.002668][   T73]      addrconf_add_dev+0xe2/0x170
[ 6390.002668][   T73]      inet6_addr_add+0x12f/0xa40
[ 6390.002668][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6390.002668][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6390.002668][   T73]      netlink_rcv_skb+0x130/0x360
[ 6390.002668][   T73]      netlink_unicast+0x449/0x710
[ 6390.002668][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6390.002668][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6390.002668][   T73]      ___sys_sendmsg+0xee/0x170
[ 6390.002668][   T73]      __sys_sendmsg+0xcd/0x170
[ 6390.002668][   T73]      do_syscall_64+0xc6/0x1e0
[ 6390.002668][   T73] 
[ 6390.004904][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6390.004904][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6390.004904][   T73]      ipv6_find_idev+0x102/0x170
[ 6390.004904][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6390.004904][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6390.004904][   T73]      netlink_rcv_skb+0x130/0x360
[ 6390.004904][   T73]      netlink_unicast+0x449/0x710
[ 6390.004904][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6390.004904][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6390.004904][   T73]      ___sys_sendmsg+0xee/0x170
[ 6390.004904][   T73]      __sys_sendmsg+0xcd/0x170
[ 6390.004904][   T73]      do_syscall_64+0xc6/0x1e0
[ 6390.004904][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6390.004904][   T73] 
[ 6390.006688][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6390.006688][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6390.006688][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6390.006688][   T73]      ipv6_find_idev+0x102/0x170
[ 6390.006688][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6390.006688][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6390.006688][   T73]      netlink_rcv_skb+0x130/0x360
[ 6390.006688][   T73]      netlink_unicast+0x449/0x710
[ 6390.006688][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6390.006688][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6390.006688][   T73]      ___sys_sendmsg+0xee/0x170
[ 6390.006688][   T73]      __sys_sendmsg+0xcd/0x170
[ 6390.006688][   T73]      do_syscall_64+0xc6/0x1e0
[ 6390.006688][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6390.006688][   T73] 
[ 6390.008565][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6390.009265][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6390.009265][   T73]      netdev_get_by_index+0x5e/0x80
[ 6390.009265][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6390.009265][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6390.009265][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6390.009265][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6390.009265][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6390.009265][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6390.009265][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6390.009265][   T73]      addrconf_dad_begin+0x310/0x670
[ 6390.009265][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6390.009265][   T73]      process_one_work+0x84d/0x18a0
[ 6390.009265][   T73]      worker_thread+0x587/0xd30
[ 6390.009265][   T73]      kthread+0x28a/0x350
[ 6390.009265][   T73]      ret_from_fork+0x31/0x70
[ 6390.009265][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6390.009265][   T73] 
[ 6390.011192][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6390.011192][   T73]      netdev_get_by_index+0x5e/0x80
[ 6390.011192][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6390.011192][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6390.011192][   T73]      ip6_route_add+0x1c/0x140
[ 6390.011192][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6390.011192][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6390.011192][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6390.011192][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6390.011192][   T73]      netlink_rcv_skb+0x130/0x360
[ 6390.011192][   T73]      netlink_unicast+0x449/0x710
[ 6390.011192][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6390.011192][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6390.011192][   T73]      ___sys_sendmsg+0xee/0x170
[ 6390.011192][   T73]      __sys_sendmsg+0xcd/0x170
[ 6390.011192][   T73]      do_syscall_64+0xc6/0x1e0
[ 6390.011192][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6390.011192][   T73] 
[ 6390.013328][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6390.013328][   T73]      netdev_get_by_index+0x5e/0x80
[ 6390.013328][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6390.013328][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6390.013328][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6390.013328][   T73]      ipv6_add_addr+0x411/0x2000
[ 6390.013328][   T73]      inet6_addr_add+0x30e/0xa40
[ 6390.013328][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6390.013328][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6390.013328][   T73]      netlink_rcv_skb+0x130/0x360
[ 6390.013328][   T73]      netlink_unicast+0x449/0x710
[ 6390.013328][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6390.013328][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6390.013328][   T73]      ___sys_sendmsg+0xee/0x170
[ 6390.013328][   T73]      __sys_sendmsg+0xcd/0x170
[ 6390.013328][   T73]      do_syscall_64+0xc6/0x1e0
[ 6390.013328][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6390.013328][   T73] 
[ 6390.015581][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6390.015581][   T73]      netdev_get_by_index+0x5e/0x80
[ 6390.015581][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6390.015581][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6390.015581][   T73]      ip6_route_add+0x1c/0x140
[ 6390.015581][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6390.015581][   T73]      addrconf_add_dev+0xe2/0x170
[ 6390.015581][   T73]      inet6_addr_add+0x12f/0xa40
[ 6390.015581][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6390.015581][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6390.015581][   T73]      netlink_rcv_skb+0x130/0x360
[ 6390.015581][   T73]      netlink_unicast+0x449/0x710
[ 6390.015581][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6390.015581][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6390.015581][   T73]      ___sys_sendmsg+0xee/0x170
[ 6390.015581][   T73]      __sys_sendmsg+0xcd/0x170
[ 6390.015581][   T73]      do_syscall_64+0xc6/0x1e0
[ 6390.015581][   T73] 
[ 6390.017733][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6390.017733][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6390.017733][   T73]      ipv6_find_idev+0x102/0x170
[ 6390.017733][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6390.017733][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6390.017733][   T73]      netlink_rcv_skb+0x130/0x360
[ 6390.017733][   T73]      netlink_unicast+0x449/0x710
[ 6390.017733][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6390.017733][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6390.017733][   T73]      ___sys_sendmsg+0xee/0x170
[ 6390.017733][   T73]      __sys_sendmsg+0xcd/0x170
[ 6390.017733][   T73]      do_syscall_64+0xc6/0x1e0
[ 6390.017733][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6390.017733][   T73] 
[ 6390.019522][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6390.019522][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6390.019522][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6390.019522][   T73]      ipv6_find_idev+0x102/0x170
[ 6390.019522][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6390.019522][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6390.019522][   T73]      netlink_rcv_skb+0x130/0x360
[ 6390.019522][   T73]      netlink_unicast+0x449/0x710
[ 6390.019522][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6390.019522][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6390.019522][   T73]      ___sys_sendmsg+0xee/0x170
[ 6390.019522][   T73]      __sys_sendmsg+0xcd/0x170
[ 6390.019522][   T73]      do_syscall_64+0xc6/0x1e0
[ 6390.019522][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6390.019522][   T73] 
[ 6400.271715][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6400.272124][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6400.272124][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6400.272124][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6400.272124][   T73]      fib6_nh_init+0xa22/0x1580
[ 6400.272124][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6400.272124][   T73]      ip6_route_add+0x1c/0x140
[ 6400.272124][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6400.272124][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6400.272124][   T73]      netlink_rcv_skb+0x130/0x360
[ 6400.272124][   T73]      netlink_unicast+0x449/0x710
[ 6400.272124][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6400.272124][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6400.272124][   T73]      ___sys_sendmsg+0xee/0x170
[ 6400.272124][   T73]      __sys_sendmsg+0xcd/0x170
[ 6400.272124][   T73]      do_syscall_64+0xc6/0x1e0
[ 6400.272124][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6400.272124][   T73] 
[ 6400.274051][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6400.274051][   T73]      dst_init+0x84/0x4a0
[ 6400.274051][   T73]      dst_alloc+0x97/0x150
[ 6400.274051][   T73]      ip6_dst_alloc+0x23/0x90
[ 6400.274051][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6400.274051][   T73]      ip6_pol_route+0x56f/0x840
[ 6400.274051][   T73]      fib6_rule_lookup+0x456/0x630
[ 6400.274051][   T73]      ip6_route_input+0x59c/0xa50
[ 6400.274051][   T73]      ipv6_rcv+0x397/0x810
[ 6400.274051][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6400.274051][   T73]      process_backlog+0x101/0x620
[ 6400.274051][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6400.274051][   T73]      net_rx_action+0x495/0xbe0
[ 6400.274051][   T73]      __do_softirq+0x1b5/0x7f6
[ 6400.274051][   T73] 
[ 6400.275725][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6400.275725][   T73]      netdev_get_by_index+0x5e/0x80
[ 6400.275725][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6400.275725][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6400.275725][   T73]      ip6_route_add+0x1c/0x140
[ 6400.275725][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6400.275725][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6400.275725][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6400.275725][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6400.275725][   T73]      netlink_rcv_skb+0x130/0x360
[ 6400.275725][   T73]      netlink_unicast+0x449/0x710
[ 6400.275725][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6400.275725][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6400.275725][   T73]      ___sys_sendmsg+0xee/0x170
[ 6400.275725][   T73]      __sys_sendmsg+0xcd/0x170
[ 6400.275725][   T73]      do_syscall_64+0xc6/0x1e0
[ 6400.275725][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6400.275725][   T73] 
[ 6400.277745][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6400.277745][   T73]      netdev_get_by_index+0x5e/0x80
[ 6400.277745][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6400.277745][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6400.277745][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6400.277745][   T73]      ipv6_add_addr+0x411/0x2000
[ 6400.277745][   T73]      inet6_addr_add+0x30e/0xa40
[ 6400.277745][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6400.277745][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6400.277745][   T73]      netlink_rcv_skb+0x130/0x360
[ 6400.277745][   T73]      netlink_unicast+0x449/0x710
[ 6400.277745][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6400.277745][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6400.277745][   T73]      ___sys_sendmsg+0xee/0x170
[ 6400.277745][   T73]      __sys_sendmsg+0xcd/0x170
[ 6400.277745][   T73]      do_syscall_64+0xc6/0x1e0
[ 6400.277745][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6400.277745][   T73] 
[ 6400.279762][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6400.279762][   T73]      netdev_get_by_index+0x5e/0x80
[ 6400.279762][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6400.279762][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6400.279762][   T73]      ip6_route_add+0x1c/0x140
[ 6400.279762][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6400.279762][   T73]      addrconf_add_dev+0xe2/0x170
[ 6400.279762][   T73]      inet6_addr_add+0x12f/0xa40
[ 6400.279762][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6400.279762][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6400.279762][   T73]      netlink_rcv_skb+0x130/0x360
[ 6400.279762][   T73]      netlink_unicast+0x449/0x710
[ 6400.279762][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6400.279762][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6400.279762][   T73]      ___sys_sendmsg+0xee/0x170
[ 6400.279762][   T73]      __sys_sendmsg+0xcd/0x170
[ 6400.279762][   T73]      do_syscall_64+0xc6/0x1e0
[ 6400.279762][   T73] 
[ 6400.281751][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6400.281751][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6400.281751][   T73]      ipv6_find_idev+0x102/0x170
[ 6400.281751][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6400.281751][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6400.281751][   T73]      netlink_rcv_skb+0x130/0x360
[ 6400.281751][   T73]      netlink_unicast+0x449/0x710
[ 6400.281751][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6400.281751][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6400.281751][   T73]      ___sys_sendmsg+0xee/0x170
[ 6400.281751][   T73]      __sys_sendmsg+0xcd/0x170
[ 6400.281751][   T73]      do_syscall_64+0xc6/0x1e0
[ 6400.281751][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6400.281751][   T73] 
[ 6400.283311][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6400.283311][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6400.283311][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6400.283311][   T73]      ipv6_find_idev+0x102/0x170
[ 6400.283311][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6400.283311][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6400.283311][   T73]      netlink_rcv_skb+0x130/0x360
[ 6400.283311][   T73]      netlink_unicast+0x449/0x710
[ 6400.283311][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6400.283311][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6400.283311][   T73]      ___sys_sendmsg+0xee/0x170
[ 6400.283311][   T73]      __sys_sendmsg+0xcd/0x170
[ 6400.283311][   T73]      do_syscall_64+0xc6/0x1e0
[ 6400.283311][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6400.283311][   T73] 
[ 6400.285037][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6400.285338][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6400.285338][   T73]      netdev_get_by_index+0x5e/0x80
[ 6400.285338][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6400.285338][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6400.285338][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6400.285338][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6400.285338][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6400.285338][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6400.285338][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6400.285338][   T73]      addrconf_dad_begin+0x310/0x670
[ 6400.285338][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6400.285338][   T73]      process_one_work+0x84d/0x18a0
[ 6400.285338][   T73]      worker_thread+0x587/0xd30
[ 6400.285338][   T73]      kthread+0x28a/0x350
[ 6400.285338][   T73]      ret_from_fork+0x31/0x70
[ 6400.285338][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6400.285338][   T73] 
[ 6400.287283][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6400.287283][   T73]      netdev_get_by_index+0x5e/0x80
[ 6400.287283][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6400.287283][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6400.287283][   T73]      ip6_route_add+0x1c/0x140
[ 6400.287283][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6400.287283][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6400.287283][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6400.287283][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6400.287283][   T73]      netlink_rcv_skb+0x130/0x360
[ 6400.287283][   T73]      netlink_unicast+0x449/0x710
[ 6400.287283][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6400.287283][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6400.287283][   T73]      ___sys_sendmsg+0xee/0x170
[ 6400.287283][   T73]      __sys_sendmsg+0xcd/0x170
[ 6400.287283][   T73]      do_syscall_64+0xc6/0x1e0
[ 6400.287283][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6400.287283][   T73] 
[ 6400.289316][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6400.289316][   T73]      netdev_get_by_index+0x5e/0x80
[ 6400.289316][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6400.289316][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6400.289316][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6400.289316][   T73]      ipv6_add_addr+0x411/0x2000
[ 6400.289316][   T73]      inet6_addr_add+0x30e/0xa40
[ 6400.289316][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6400.289316][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6400.289316][   T73]      netlink_rcv_skb+0x130/0x360
[ 6400.289316][   T73]      netlink_unicast+0x449/0x710
[ 6400.289316][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6400.289316][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6400.289316][   T73]      ___sys_sendmsg+0xee/0x170
[ 6400.289316][   T73]      __sys_sendmsg+0xcd/0x170
[ 6400.289316][   T73]      do_syscall_64+0xc6/0x1e0
[ 6400.289316][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6400.289316][   T73] 
[ 6400.291334][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6400.291334][   T73]      netdev_get_by_index+0x5e/0x80
[ 6400.291334][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6400.291334][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6400.291334][   T73]      ip6_route_add+0x1c/0x140
[ 6400.291334][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6400.291334][   T73]      addrconf_add_dev+0xe2/0x170
[ 6400.291334][   T73]      inet6_addr_add+0x12f/0xa40
[ 6400.291334][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6400.291334][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6400.291334][   T73]      netlink_rcv_skb+0x130/0x360
[ 6400.291334][   T73]      netlink_unicast+0x449/0x710
[ 6400.291334][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6400.291334][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6400.291334][   T73]      ___sys_sendmsg+0xee/0x170
[ 6400.291334][   T73]      __sys_sendmsg+0xcd/0x170
[ 6400.291334][   T73]      do_syscall_64+0xc6/0x1e0
[ 6400.291334][   T73] 
[ 6400.293312][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6400.293312][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6400.293312][   T73]      ipv6_find_idev+0x102/0x170
[ 6400.293312][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6400.293312][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6400.293312][   T73]      netlink_rcv_skb+0x130/0x360
[ 6400.293312][   T73]      netlink_unicast+0x449/0x710
[ 6400.293312][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6400.293312][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6400.293312][   T73]      ___sys_sendmsg+0xee/0x170
[ 6400.293312][   T73]      __sys_sendmsg+0xcd/0x170
[ 6400.293312][   T73]      do_syscall_64+0xc6/0x1e0
[ 6400.293312][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6400.293312][   T73] 
[ 6400.294880][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6400.294880][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6400.294880][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6400.294880][   T73]      ipv6_find_idev+0x102/0x170
[ 6400.294880][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6400.294880][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6400.294880][   T73]      netlink_rcv_skb+0x130/0x360
[ 6400.294880][   T73]      netlink_unicast+0x449/0x710
[ 6400.294880][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6400.294880][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6400.294880][   T73]      ___sys_sendmsg+0xee/0x170
[ 6400.294880][   T73]      __sys_sendmsg+0xcd/0x170
[ 6400.294880][   T73]      do_syscall_64+0xc6/0x1e0
[ 6400.294880][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6400.294880][   T73] 
[ 6400.296593][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6400.296886][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6400.296886][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6400.296886][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6400.296886][   T73]      fib6_nh_init+0xa22/0x1580
[ 6400.296886][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6400.296886][   T73]      ip6_route_add+0x1c/0x140
[ 6400.296886][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6400.296886][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6400.296886][   T73]      netlink_rcv_skb+0x130/0x360
[ 6400.296886][   T73]      netlink_unicast+0x449/0x710
[ 6400.296886][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6400.296886][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6400.296886][   T73]      ___sys_sendmsg+0xee/0x170
[ 6400.296886][   T73]      __sys_sendmsg+0xcd/0x170
[ 6400.296886][   T73]      do_syscall_64+0xc6/0x1e0
[ 6400.296886][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6400.296886][   T73] 
[ 6400.299073][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6400.299073][   T73]      dst_init+0x84/0x4a0
[ 6400.299073][   T73]      dst_alloc+0x97/0x150
[ 6400.299073][   T73]      ip6_dst_alloc+0x23/0x90
[ 6400.299073][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6400.299073][   T73]      ip6_pol_route+0x56f/0x840
[ 6400.299073][   T73]      fib6_rule_lookup+0x456/0x630
[ 6400.299073][   T73]      ip6_route_input+0x59c/0xa50
[ 6400.299073][   T73]      ipv6_rcv+0x397/0x810
[ 6400.299073][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6400.299073][   T73]      process_backlog+0x101/0x620
[ 6400.299073][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6400.299073][   T73]      net_rx_action+0x495/0xbe0
[ 6400.299073][   T73]      __do_softirq+0x1b5/0x7f6
[ 6400.299073][   T73] 
[ 6400.300975][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6400.300975][   T73]      netdev_get_by_index+0x5e/0x80
[ 6400.300975][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6400.300975][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6400.300975][   T73]      ip6_route_add+0x1c/0x140
[ 6400.300975][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6400.300975][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6400.300975][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6400.300975][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6400.300975][   T73]      netlink_rcv_skb+0x130/0x360
[ 6400.300975][   T73]      netlink_unicast+0x449/0x710
[ 6400.300975][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6400.300975][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6400.300975][   T73]      ___sys_sendmsg+0xee/0x170
[ 6400.300975][   T73]      __sys_sendmsg+0xcd/0x170
[ 6400.300975][   T73]      do_syscall_64+0xc6/0x1e0
[ 6400.300975][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6400.300975][   T73] 
[ 6400.303256][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6400.303256][   T73]      netdev_get_by_index+0x5e/0x80
[ 6400.303256][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6400.303256][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6400.303256][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6400.303256][   T73]      ipv6_add_addr+0x411/0x2000
[ 6400.303256][   T73]      inet6_addr_add+0x30e/0xa40
[ 6400.303256][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6400.303256][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6400.303256][   T73]      netlink_rcv_skb+0x130/0x360
[ 6400.303256][   T73]      netlink_unicast+0x449/0x710
[ 6400.303256][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6400.303256][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6400.303256][   T73]      ___sys_sendmsg+0xee/0x170
[ 6400.303256][   T73]      __sys_sendmsg+0xcd/0x170
[ 6400.303256][   T73]      do_syscall_64+0xc6/0x1e0
[ 6400.303256][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6400.303256][   T73] 
[ 6400.305515][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6400.305515][   T73]      netdev_get_by_index+0x5e/0x80
[ 6400.305515][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6400.305515][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6400.305515][   T73]      ip6_route_add+0x1c/0x140
[ 6400.305515][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6400.305515][   T73]      addrconf_add_dev+0xe2/0x170
[ 6400.305515][   T73]      inet6_addr_add+0x12f/0xa40
[ 6400.305515][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6400.305515][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6400.305515][   T73]      netlink_rcv_skb+0x130/0x360
[ 6400.305515][   T73]      netlink_unicast+0x449/0x710
[ 6400.305515][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6400.305515][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6400.305515][   T73]      ___sys_sendmsg+0xee/0x170
[ 6400.305515][   T73]      __sys_sendmsg+0xcd/0x170
[ 6400.305515][   T73]      do_syscall_64+0xc6/0x1e0
[ 6400.305515][   T73] 
[ 6400.307746][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6400.307746][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6400.307746][   T73]      ipv6_find_idev+0x102/0x170
[ 6400.307746][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6400.307746][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6400.307746][   T73]      netlink_rcv_skb+0x130/0x360
[ 6400.307746][   T73]      netlink_unicast+0x449/0x710
[ 6400.307746][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6400.307746][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6400.307746][   T73]      ___sys_sendmsg+0xee/0x170
[ 6400.307746][   T73]      __sys_sendmsg+0xcd/0x170
[ 6400.307746][   T73]      do_syscall_64+0xc6/0x1e0
[ 6400.307746][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6400.307746][   T73] 
[ 6400.309545][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6400.309545][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6400.309545][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6400.309545][   T73]      ipv6_find_idev+0x102/0x170
[ 6400.309545][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6400.309545][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6400.309545][   T73]      netlink_rcv_skb+0x130/0x360
[ 6400.309545][   T73]      netlink_unicast+0x449/0x710
[ 6400.309545][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6400.309545][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6400.309545][   T73]      ___sys_sendmsg+0xee/0x170
[ 6400.309545][   T73]      __sys_sendmsg+0xcd/0x170
[ 6400.309545][   T73]      do_syscall_64+0xc6/0x1e0
[ 6400.309545][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6400.309545][   T73] 
[ 6400.311431][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6400.312130][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6400.312130][   T73]      netdev_get_by_index+0x5e/0x80
[ 6400.312130][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6400.312130][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6400.312130][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6400.312130][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6400.312130][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6400.312130][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6400.312130][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6400.312130][   T73]      addrconf_dad_begin+0x310/0x670
[ 6400.312130][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6400.312130][   T73]      process_one_work+0x84d/0x18a0
[ 6400.312130][   T73]      worker_thread+0x587/0xd30
[ 6400.312130][   T73]      kthread+0x28a/0x350
[ 6400.312130][   T73]      ret_from_fork+0x31/0x70
[ 6400.312130][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6400.312130][   T73] 
[ 6400.314075][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6400.314075][   T73]      netdev_get_by_index+0x5e/0x80
[ 6400.314075][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6400.314075][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6400.314075][   T73]      ip6_route_add+0x1c/0x140
[ 6400.314075][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6400.314075][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6400.314075][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6400.314075][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6400.314075][   T73]      netlink_rcv_skb+0x130/0x360
[ 6400.314075][   T73]      netlink_unicast+0x449/0x710
[ 6400.314075][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6400.314075][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6400.314075][   T73]      ___sys_sendmsg+0xee/0x170
[ 6400.314075][   T73]      __sys_sendmsg+0xcd/0x170
[ 6400.314075][   T73]      do_syscall_64+0xc6/0x1e0
[ 6400.314075][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6400.314075][   T73] 
[ 6400.316229][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6400.316229][   T73]      netdev_get_by_index+0x5e/0x80
[ 6400.316229][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6400.316229][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6400.316229][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6400.316229][   T73]      ipv6_add_addr+0x411/0x2000
[ 6400.316229][   T73]      inet6_addr_add+0x30e/0xa40
[ 6400.316229][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6400.316229][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6400.316229][   T73]      netlink_rcv_skb+0x130/0x360
[ 6400.316229][   T73]      netlink_unicast+0x449/0x710
[ 6400.316229][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6400.316229][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6400.316229][   T73]      ___sys_sendmsg+0xee/0x170
[ 6400.316229][   T73]      __sys_sendmsg+0xcd/0x170
[ 6400.316229][   T73]      do_syscall_64+0xc6/0x1e0
[ 6400.316229][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6400.316229][   T73] 
[ 6400.318504][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6400.318504][   T73]      netdev_get_by_index+0x5e/0x80
[ 6400.318504][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6400.318504][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6400.318504][   T73]      ip6_route_add+0x1c/0x140
[ 6400.318504][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6400.318504][   T73]      addrconf_add_dev+0xe2/0x170
[ 6400.318504][   T73]      inet6_addr_add+0x12f/0xa40
[ 6400.318504][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6400.318504][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6400.318504][   T73]      netlink_rcv_skb+0x130/0x360
[ 6400.318504][   T73]      netlink_unicast+0x449/0x710
[ 6400.318504][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6400.318504][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6400.318504][   T73]      ___sys_sendmsg+0xee/0x170
[ 6400.318504][   T73]      __sys_sendmsg+0xcd/0x170
[ 6400.318504][   T73]      do_syscall_64+0xc6/0x1e0
[ 6400.318504][   T73] 
[ 6400.320672][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6400.320672][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6400.320672][   T73]      ipv6_find_idev+0x102/0x170
[ 6400.320672][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6400.320672][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6400.320672][   T73]      netlink_rcv_skb+0x130/0x360
[ 6400.320672][   T73]      netlink_unicast+0x449/0x710
[ 6400.320672][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6400.320672][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6400.320672][   T73]      ___sys_sendmsg+0xee/0x170
[ 6400.320672][   T73]      __sys_sendmsg+0xcd/0x170
[ 6400.320672][   T73]      do_syscall_64+0xc6/0x1e0
[ 6400.320672][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6400.320672][   T73] 
[ 6400.322481][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6400.322481][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6400.322481][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6400.322481][   T73]      ipv6_find_idev+0x102/0x170
[ 6400.322481][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6400.322481][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6400.322481][   T73]      netlink_rcv_skb+0x130/0x360
[ 6400.322481][   T73]      netlink_unicast+0x449/0x710
[ 6400.322481][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6400.322481][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6400.322481][   T73]      ___sys_sendmsg+0xee/0x170
[ 6400.322481][   T73]      __sys_sendmsg+0xcd/0x170
[ 6400.322481][   T73]      do_syscall_64+0xc6/0x1e0
[ 6400.322481][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6400.322481][   T73] 
[ 6410.383745][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6410.384145][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6410.384145][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6410.384145][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6410.384145][   T73]      fib6_nh_init+0xa22/0x1580
[ 6410.384145][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6410.384145][   T73]      ip6_route_add+0x1c/0x140
[ 6410.384145][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6410.384145][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6410.384145][   T73]      netlink_rcv_skb+0x130/0x360
[ 6410.384145][   T73]      netlink_unicast+0x449/0x710
[ 6410.384145][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6410.384145][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6410.384145][   T73]      ___sys_sendmsg+0xee/0x170
[ 6410.384145][   T73]      __sys_sendmsg+0xcd/0x170
[ 6410.384145][   T73]      do_syscall_64+0xc6/0x1e0
[ 6410.384145][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6410.384145][   T73] 
[ 6410.386075][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6410.386075][   T73]      dst_init+0x84/0x4a0
[ 6410.386075][   T73]      dst_alloc+0x97/0x150
[ 6410.386075][   T73]      ip6_dst_alloc+0x23/0x90
[ 6410.386075][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6410.386075][   T73]      ip6_pol_route+0x56f/0x840
[ 6410.386075][   T73]      fib6_rule_lookup+0x456/0x630
[ 6410.386075][   T73]      ip6_route_input+0x59c/0xa50
[ 6410.386075][   T73]      ipv6_rcv+0x397/0x810
[ 6410.386075][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6410.386075][   T73]      process_backlog+0x101/0x620
[ 6410.386075][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6410.386075][   T73]      net_rx_action+0x495/0xbe0
[ 6410.386075][   T73]      __do_softirq+0x1b5/0x7f6
[ 6410.386075][   T73] 
[ 6410.387735][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6410.387735][   T73]      netdev_get_by_index+0x5e/0x80
[ 6410.387735][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6410.387735][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6410.387735][   T73]      ip6_route_add+0x1c/0x140
[ 6410.387735][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6410.387735][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6410.387735][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6410.387735][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6410.387735][   T73]      netlink_rcv_skb+0x130/0x360
[ 6410.387735][   T73]      netlink_unicast+0x449/0x710
[ 6410.387735][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6410.387735][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6410.387735][   T73]      ___sys_sendmsg+0xee/0x170
[ 6410.387735][   T73]      __sys_sendmsg+0xcd/0x170
[ 6410.387735][   T73]      do_syscall_64+0xc6/0x1e0
[ 6410.387735][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6410.387735][   T73] 
[ 6410.389757][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6410.389757][   T73]      netdev_get_by_index+0x5e/0x80
[ 6410.389757][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6410.389757][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6410.389757][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6410.389757][   T73]      ipv6_add_addr+0x411/0x2000
[ 6410.389757][   T73]      inet6_addr_add+0x30e/0xa40
[ 6410.389757][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6410.389757][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6410.389757][   T73]      netlink_rcv_skb+0x130/0x360
[ 6410.389757][   T73]      netlink_unicast+0x449/0x710
[ 6410.389757][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6410.389757][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6410.389757][   T73]      ___sys_sendmsg+0xee/0x170
[ 6410.389757][   T73]      __sys_sendmsg+0xcd/0x170
[ 6410.389757][   T73]      do_syscall_64+0xc6/0x1e0
[ 6410.389757][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6410.389757][   T73] 
[ 6410.391779][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6410.391779][   T73]      netdev_get_by_index+0x5e/0x80
[ 6410.391779][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6410.391779][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6410.391779][   T73]      ip6_route_add+0x1c/0x140
[ 6410.391779][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6410.391779][   T73]      addrconf_add_dev+0xe2/0x170
[ 6410.391779][   T73]      inet6_addr_add+0x12f/0xa40
[ 6410.391779][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6410.391779][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6410.391779][   T73]      netlink_rcv_skb+0x130/0x360
[ 6410.391779][   T73]      netlink_unicast+0x449/0x710
[ 6410.391779][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6410.391779][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6410.391779][   T73]      ___sys_sendmsg+0xee/0x170
[ 6410.391779][   T73]      __sys_sendmsg+0xcd/0x170
[ 6410.391779][   T73]      do_syscall_64+0xc6/0x1e0
[ 6410.391779][   T73] 
[ 6410.393770][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6410.393770][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6410.393770][   T73]      ipv6_find_idev+0x102/0x170
[ 6410.393770][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6410.393770][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6410.393770][   T73]      netlink_rcv_skb+0x130/0x360
[ 6410.393770][   T73]      netlink_unicast+0x449/0x710
[ 6410.393770][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6410.393770][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6410.393770][   T73]      ___sys_sendmsg+0xee/0x170
[ 6410.393770][   T73]      __sys_sendmsg+0xcd/0x170
[ 6410.393770][   T73]      do_syscall_64+0xc6/0x1e0
[ 6410.393770][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6410.393770][   T73] 
[ 6410.395334][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6410.395334][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6410.395334][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6410.395334][   T73]      ipv6_find_idev+0x102/0x170
[ 6410.395334][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6410.395334][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6410.395334][   T73]      netlink_rcv_skb+0x130/0x360
[ 6410.395334][   T73]      netlink_unicast+0x449/0x710
[ 6410.395334][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6410.395334][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6410.395334][   T73]      ___sys_sendmsg+0xee/0x170
[ 6410.395334][   T73]      __sys_sendmsg+0xcd/0x170
[ 6410.395334][   T73]      do_syscall_64+0xc6/0x1e0
[ 6410.395334][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6410.395334][   T73] 
[ 6410.397037][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6410.397320][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6410.397320][   T73]      netdev_get_by_index+0x5e/0x80
[ 6410.397320][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6410.397320][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6410.397320][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6410.397320][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6410.397320][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6410.397320][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6410.397320][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6410.397320][   T73]      addrconf_dad_begin+0x310/0x670
[ 6410.397320][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6410.397320][   T73]      process_one_work+0x84d/0x18a0
[ 6410.397320][   T73]      worker_thread+0x587/0xd30
[ 6410.397320][   T73]      kthread+0x28a/0x350
[ 6410.397320][   T73]      ret_from_fork+0x31/0x70
[ 6410.397320][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6410.397320][   T73] 
[ 6410.399263][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6410.399263][   T73]      netdev_get_by_index+0x5e/0x80
[ 6410.399263][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6410.399263][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6410.399263][   T73]      ip6_route_add+0x1c/0x140
[ 6410.399263][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6410.399263][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6410.399263][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6410.399263][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6410.399263][   T73]      netlink_rcv_skb+0x130/0x360
[ 6410.399263][   T73]      netlink_unicast+0x449/0x710
[ 6410.399263][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6410.399263][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6410.399263][   T73]      ___sys_sendmsg+0xee/0x170
[ 6410.399263][   T73]      __sys_sendmsg+0xcd/0x170
[ 6410.399263][   T73]      do_syscall_64+0xc6/0x1e0
[ 6410.399263][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6410.399263][   T73] 
[ 6410.401279][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6410.401279][   T73]      netdev_get_by_index+0x5e/0x80
[ 6410.401279][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6410.401279][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6410.401279][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6410.401279][   T73]      ipv6_add_addr+0x411/0x2000
[ 6410.401279][   T73]      inet6_addr_add+0x30e/0xa40
[ 6410.401279][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6410.401279][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6410.401279][   T73]      netlink_rcv_skb+0x130/0x360
[ 6410.401279][   T73]      netlink_unicast+0x449/0x710
[ 6410.401279][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6410.401279][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6410.401279][   T73]      ___sys_sendmsg+0xee/0x170
[ 6410.401279][   T73]      __sys_sendmsg+0xcd/0x170
[ 6410.401279][   T73]      do_syscall_64+0xc6/0x1e0
[ 6410.401279][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6410.401279][   T73] 
[ 6410.403295][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6410.403295][   T73]      netdev_get_by_index+0x5e/0x80
[ 6410.403295][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6410.403295][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6410.403295][   T73]      ip6_route_add+0x1c/0x140
[ 6410.403295][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6410.403295][   T73]      addrconf_add_dev+0xe2/0x170
[ 6410.403295][   T73]      inet6_addr_add+0x12f/0xa40
[ 6410.403295][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6410.403295][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6410.403295][   T73]      netlink_rcv_skb+0x130/0x360
[ 6410.403295][   T73]      netlink_unicast+0x449/0x710
[ 6410.403295][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6410.403295][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6410.403295][   T73]      ___sys_sendmsg+0xee/0x170
[ 6410.403295][   T73]      __sys_sendmsg+0xcd/0x170
[ 6410.403295][   T73]      do_syscall_64+0xc6/0x1e0
[ 6410.403295][   T73] 
[ 6410.405282][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6410.405282][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6410.405282][   T73]      ipv6_find_idev+0x102/0x170
[ 6410.405282][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6410.405282][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6410.405282][   T73]      netlink_rcv_skb+0x130/0x360
[ 6410.405282][   T73]      netlink_unicast+0x449/0x710
[ 6410.405282][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6410.405282][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6410.405282][   T73]      ___sys_sendmsg+0xee/0x170
[ 6410.405282][   T73]      __sys_sendmsg+0xcd/0x170
[ 6410.405282][   T73]      do_syscall_64+0xc6/0x1e0
[ 6410.405282][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6410.405282][   T73] 
[ 6410.406835][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6410.406835][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6410.406835][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6410.406835][   T73]      ipv6_find_idev+0x102/0x170
[ 6410.406835][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6410.406835][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6410.406835][   T73]      netlink_rcv_skb+0x130/0x360
[ 6410.406835][   T73]      netlink_unicast+0x449/0x710
[ 6410.406835][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6410.406835][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6410.406835][   T73]      ___sys_sendmsg+0xee/0x170
[ 6410.406835][   T73]      __sys_sendmsg+0xcd/0x170
[ 6410.406835][   T73]      do_syscall_64+0xc6/0x1e0
[ 6410.406835][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6410.406835][   T73] 
[ 6410.408535][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6410.408823][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6410.408823][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6410.408823][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6410.408823][   T73]      fib6_nh_init+0xa22/0x1580
[ 6410.408823][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6410.408823][   T73]      ip6_route_add+0x1c/0x140
[ 6410.408823][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6410.408823][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6410.408823][   T73]      netlink_rcv_skb+0x130/0x360
[ 6410.408823][   T73]      netlink_unicast+0x449/0x710
[ 6410.408823][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6410.408823][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6410.408823][   T73]      ___sys_sendmsg+0xee/0x170
[ 6410.408823][   T73]      __sys_sendmsg+0xcd/0x170
[ 6410.408823][   T73]      do_syscall_64+0xc6/0x1e0
[ 6410.408823][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6410.408823][   T73] 
[ 6410.410904][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6410.410904][   T73]      dst_init+0x84/0x4a0
[ 6410.410904][   T73]      dst_alloc+0x97/0x150
[ 6410.410904][   T73]      ip6_dst_alloc+0x23/0x90
[ 6410.410904][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6410.410904][   T73]      ip6_pol_route+0x56f/0x840
[ 6410.410904][   T73]      fib6_rule_lookup+0x456/0x630
[ 6410.410904][   T73]      ip6_route_input+0x59c/0xa50
[ 6410.410904][   T73]      ipv6_rcv+0x397/0x810
[ 6410.410904][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6410.410904][   T73]      process_backlog+0x101/0x620
[ 6410.410904][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6410.410904][   T73]      net_rx_action+0x495/0xbe0
[ 6410.410904][   T73]      __do_softirq+0x1b5/0x7f6
[ 6410.410904][   T73] 
[ 6410.412872][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6410.412872][   T73]      netdev_get_by_index+0x5e/0x80
[ 6410.412872][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6410.412872][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6410.412872][   T73]      ip6_route_add+0x1c/0x140
[ 6410.412872][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6410.412872][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6410.412872][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6410.412872][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6410.412872][   T73]      netlink_rcv_skb+0x130/0x360
[ 6410.412872][   T73]      netlink_unicast+0x449/0x710
[ 6410.412872][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6410.412872][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6410.412872][   T73]      ___sys_sendmsg+0xee/0x170
[ 6410.412872][   T73]      __sys_sendmsg+0xcd/0x170
[ 6410.412872][   T73]      do_syscall_64+0xc6/0x1e0
[ 6410.412872][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6410.412872][   T73] 
[ 6410.415133][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6410.415133][   T73]      netdev_get_by_index+0x5e/0x80
[ 6410.415133][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6410.415133][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6410.415133][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6410.415133][   T73]      ipv6_add_addr+0x411/0x2000
[ 6410.415133][   T73]      inet6_addr_add+0x30e/0xa40
[ 6410.415133][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6410.415133][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6410.415133][   T73]      netlink_rcv_skb+0x130/0x360
[ 6410.415133][   T73]      netlink_unicast+0x449/0x710
[ 6410.415133][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6410.415133][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6410.415133][   T73]      ___sys_sendmsg+0xee/0x170
[ 6410.415133][   T73]      __sys_sendmsg+0xcd/0x170
[ 6410.415133][   T73]      do_syscall_64+0xc6/0x1e0
[ 6410.415133][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6410.415133][   T73] 
[ 6410.417383][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6410.417383][   T73]      netdev_get_by_index+0x5e/0x80
[ 6410.417383][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6410.417383][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6410.417383][   T73]      ip6_route_add+0x1c/0x140
[ 6410.417383][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6410.417383][   T73]      addrconf_add_dev+0xe2/0x170
[ 6410.417383][   T73]      inet6_addr_add+0x12f/0xa40
[ 6410.417383][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6410.417383][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6410.417383][   T73]      netlink_rcv_skb+0x130/0x360
[ 6410.417383][   T73]      netlink_unicast+0x449/0x710
[ 6410.417383][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6410.417383][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6410.417383][   T73]      ___sys_sendmsg+0xee/0x170
[ 6410.417383][   T73]      __sys_sendmsg+0xcd/0x170
[ 6410.417383][   T73]      do_syscall_64+0xc6/0x1e0
[ 6410.417383][   T73] 
[ 6410.419604][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6410.419604][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6410.419604][   T73]      ipv6_find_idev+0x102/0x170
[ 6410.419604][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6410.419604][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6410.419604][   T73]      netlink_rcv_skb+0x130/0x360
[ 6410.419604][   T73]      netlink_unicast+0x449/0x710
[ 6410.419604][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6410.419604][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6410.419604][   T73]      ___sys_sendmsg+0xee/0x170
[ 6410.419604][   T73]      __sys_sendmsg+0xcd/0x170
[ 6410.419604][   T73]      do_syscall_64+0xc6/0x1e0
[ 6410.419604][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6410.419604][   T73] 
[ 6410.421408][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6410.421408][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6410.421408][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6410.421408][   T73]      ipv6_find_idev+0x102/0x170
[ 6410.421408][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6410.421408][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6410.421408][   T73]      netlink_rcv_skb+0x130/0x360
[ 6410.421408][   T73]      netlink_unicast+0x449/0x710
[ 6410.421408][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6410.421408][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6410.421408][   T73]      ___sys_sendmsg+0xee/0x170
[ 6410.421408][   T73]      __sys_sendmsg+0xcd/0x170
[ 6410.421408][   T73]      do_syscall_64+0xc6/0x1e0
[ 6410.421408][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6410.421408][   T73] 
[ 6410.423284][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6410.423556][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6410.423556][   T73]      netdev_get_by_index+0x5e/0x80
[ 6410.423556][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6410.423556][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6410.423556][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6410.423556][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6410.423556][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6410.423556][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6410.423556][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6410.423556][   T73]      addrconf_dad_begin+0x310/0x670
[ 6410.423556][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6410.423556][   T73]      process_one_work+0x84d/0x18a0
[ 6410.423556][   T73]      worker_thread+0x587/0xd30
[ 6410.423556][   T73]      kthread+0x28a/0x350
[ 6410.423556][   T73]      ret_from_fork+0x31/0x70
[ 6410.423556][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6410.423556][   T73] 
[ 6410.425732][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6410.425732][   T73]      netdev_get_by_index+0x5e/0x80
[ 6410.425732][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6410.425732][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6410.425732][   T73]      ip6_route_add+0x1c/0x140
[ 6410.425732][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6410.425732][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6410.425732][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6410.425732][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6410.425732][   T73]      netlink_rcv_skb+0x130/0x360
[ 6410.425732][   T73]      netlink_unicast+0x449/0x710
[ 6410.425732][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6410.425732][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6410.425732][   T73]      ___sys_sendmsg+0xee/0x170
[ 6410.425732][   T73]      __sys_sendmsg+0xcd/0x170
[ 6410.425732][   T73]      do_syscall_64+0xc6/0x1e0
[ 6410.425732][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6410.425732][   T73] 
[ 6410.427986][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6410.427986][   T73]      netdev_get_by_index+0x5e/0x80
[ 6410.427986][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6410.427986][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6410.427986][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6410.427986][   T73]      ipv6_add_addr+0x411/0x2000
[ 6410.427986][   T73]      inet6_addr_add+0x30e/0xa40
[ 6410.427986][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6410.427986][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6410.427986][   T73]      netlink_rcv_skb+0x130/0x360
[ 6410.427986][   T73]      netlink_unicast+0x449/0x710
[ 6410.427986][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6410.427986][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6410.427986][   T73]      ___sys_sendmsg+0xee/0x170
[ 6410.427986][   T73]      __sys_sendmsg+0xcd/0x170
[ 6410.427986][   T73]      do_syscall_64+0xc6/0x1e0
[ 6410.427986][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6410.427986][   T73] 
[ 6410.430292][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6410.430292][   T73]      netdev_get_by_index+0x5e/0x80
[ 6410.430292][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6410.430292][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6410.430292][   T73]      ip6_route_add+0x1c/0x140
[ 6410.430292][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6410.430292][   T73]      addrconf_add_dev+0xe2/0x170
[ 6410.430292][   T73]      inet6_addr_add+0x12f/0xa40
[ 6410.430292][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6410.430292][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6410.430292][   T73]      netlink_rcv_skb+0x130/0x360
[ 6410.430292][   T73]      netlink_unicast+0x449/0x710
[ 6410.430292][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6410.430292][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6410.430292][   T73]      ___sys_sendmsg+0xee/0x170
[ 6410.430292][   T73]      __sys_sendmsg+0xcd/0x170
[ 6410.430292][   T73]      do_syscall_64+0xc6/0x1e0
[ 6410.430292][   T73] 
[ 6410.432445][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6410.432445][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6410.432445][   T73]      ipv6_find_idev+0x102/0x170
[ 6410.432445][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6410.432445][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6410.432445][   T73]      netlink_rcv_skb+0x130/0x360
[ 6410.432445][   T73]      netlink_unicast+0x449/0x710
[ 6410.432445][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6410.432445][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6410.432445][   T73]      ___sys_sendmsg+0xee/0x170
[ 6410.432445][   T73]      __sys_sendmsg+0xcd/0x170
[ 6410.432445][   T73]      do_syscall_64+0xc6/0x1e0
[ 6410.432445][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6410.432445][   T73] 
[ 6410.434168][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6410.434168][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6410.434168][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6410.434168][   T73]      ipv6_find_idev+0x102/0x170
[ 6410.434168][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6410.434168][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6410.434168][   T73]      netlink_rcv_skb+0x130/0x360
[ 6410.434168][   T73]      netlink_unicast+0x449/0x710
[ 6410.434168][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6410.434168][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6410.434168][   T73]      ___sys_sendmsg+0xee/0x170
[ 6410.434168][   T73]      __sys_sendmsg+0xcd/0x170
[ 6410.434168][   T73]      do_syscall_64+0xc6/0x1e0
[ 6410.434168][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6410.434168][   T73] 
[ 6420.631793][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6420.632211][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6420.632211][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6420.632211][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6420.632211][   T73]      fib6_nh_init+0xa22/0x1580
[ 6420.632211][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6420.632211][   T73]      ip6_route_add+0x1c/0x140
[ 6420.632211][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6420.632211][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6420.632211][   T73]      netlink_rcv_skb+0x130/0x360
[ 6420.632211][   T73]      netlink_unicast+0x449/0x710
[ 6420.632211][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6420.632211][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6420.632211][   T73]      ___sys_sendmsg+0xee/0x170
[ 6420.632211][   T73]      __sys_sendmsg+0xcd/0x170
[ 6420.632211][   T73]      do_syscall_64+0xc6/0x1e0
[ 6420.632211][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6420.632211][   T73] 
[ 6420.634124][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6420.634124][   T73]      dst_init+0x84/0x4a0
[ 6420.634124][   T73]      dst_alloc+0x97/0x150
[ 6420.634124][   T73]      ip6_dst_alloc+0x23/0x90
[ 6420.634124][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6420.634124][   T73]      ip6_pol_route+0x56f/0x840
[ 6420.634124][   T73]      fib6_rule_lookup+0x456/0x630
[ 6420.634124][   T73]      ip6_route_input+0x59c/0xa50
[ 6420.634124][   T73]      ipv6_rcv+0x397/0x810
[ 6420.634124][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6420.634124][   T73]      process_backlog+0x101/0x620
[ 6420.634124][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6420.634124][   T73]      net_rx_action+0x495/0xbe0
[ 6420.634124][   T73]      __do_softirq+0x1b5/0x7f6
[ 6420.634124][   T73] 
[ 6420.635786][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6420.635786][   T73]      netdev_get_by_index+0x5e/0x80
[ 6420.635786][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6420.635786][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6420.635786][   T73]      ip6_route_add+0x1c/0x140
[ 6420.635786][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6420.635786][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6420.635786][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6420.635786][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6420.635786][   T73]      netlink_rcv_skb+0x130/0x360
[ 6420.635786][   T73]      netlink_unicast+0x449/0x710
[ 6420.635786][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6420.635786][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6420.635786][   T73]      ___sys_sendmsg+0xee/0x170
[ 6420.635786][   T73]      __sys_sendmsg+0xcd/0x170
[ 6420.635786][   T73]      do_syscall_64+0xc6/0x1e0
[ 6420.635786][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6420.635786][   T73] 
[ 6420.637826][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6420.637826][   T73]      netdev_get_by_index+0x5e/0x80
[ 6420.637826][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6420.637826][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6420.637826][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6420.637826][   T73]      ipv6_add_addr+0x411/0x2000
[ 6420.637826][   T73]      inet6_addr_add+0x30e/0xa40
[ 6420.637826][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6420.637826][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6420.637826][   T73]      netlink_rcv_skb+0x130/0x360
[ 6420.637826][   T73]      netlink_unicast+0x449/0x710
[ 6420.637826][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6420.637826][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6420.637826][   T73]      ___sys_sendmsg+0xee/0x170
[ 6420.637826][   T73]      __sys_sendmsg+0xcd/0x170
[ 6420.637826][   T73]      do_syscall_64+0xc6/0x1e0
[ 6420.637826][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6420.637826][   T73] 
[ 6420.639846][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6420.639846][   T73]      netdev_get_by_index+0x5e/0x80
[ 6420.639846][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6420.639846][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6420.639846][   T73]      ip6_route_add+0x1c/0x140
[ 6420.639846][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6420.639846][   T73]      addrconf_add_dev+0xe2/0x170
[ 6420.639846][   T73]      inet6_addr_add+0x12f/0xa40
[ 6420.639846][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6420.639846][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6420.639846][   T73]      netlink_rcv_skb+0x130/0x360
[ 6420.639846][   T73]      netlink_unicast+0x449/0x710
[ 6420.639846][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6420.639846][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6420.639846][   T73]      ___sys_sendmsg+0xee/0x170
[ 6420.639846][   T73]      __sys_sendmsg+0xcd/0x170
[ 6420.639846][   T73]      do_syscall_64+0xc6/0x1e0
[ 6420.639846][   T73] 
[ 6420.641841][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6420.641841][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6420.641841][   T73]      ipv6_find_idev+0x102/0x170
[ 6420.641841][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6420.641841][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6420.641841][   T73]      netlink_rcv_skb+0x130/0x360
[ 6420.641841][   T73]      netlink_unicast+0x449/0x710
[ 6420.641841][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6420.641841][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6420.641841][   T73]      ___sys_sendmsg+0xee/0x170
[ 6420.641841][   T73]      __sys_sendmsg+0xcd/0x170
[ 6420.641841][   T73]      do_syscall_64+0xc6/0x1e0
[ 6420.641841][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6420.641841][   T73] 
[ 6420.643399][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6420.643399][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6420.643399][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6420.643399][   T73]      ipv6_find_idev+0x102/0x170
[ 6420.643399][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6420.643399][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6420.643399][   T73]      netlink_rcv_skb+0x130/0x360
[ 6420.643399][   T73]      netlink_unicast+0x449/0x710
[ 6420.643399][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6420.643399][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6420.643399][   T73]      ___sys_sendmsg+0xee/0x170
[ 6420.643399][   T73]      __sys_sendmsg+0xcd/0x170
[ 6420.643399][   T73]      do_syscall_64+0xc6/0x1e0
[ 6420.643399][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6420.643399][   T73] 
[ 6420.645128][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6420.645411][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6420.645411][   T73]      netdev_get_by_index+0x5e/0x80
[ 6420.645411][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6420.645411][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6420.645411][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6420.645411][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6420.645411][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6420.645411][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6420.645411][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6420.645411][   T73]      addrconf_dad_begin+0x310/0x670
[ 6420.645411][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6420.645411][   T73]      process_one_work+0x84d/0x18a0
[ 6420.645411][   T73]      worker_thread+0x587/0xd30
[ 6420.645411][   T73]      kthread+0x28a/0x350
[ 6420.645411][   T73]      ret_from_fork+0x31/0x70
[ 6420.645411][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6420.645411][   T73] 
[ 6420.647355][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6420.647355][   T73]      netdev_get_by_index+0x5e/0x80
[ 6420.647355][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6420.647355][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6420.647355][   T73]      ip6_route_add+0x1c/0x140
[ 6420.647355][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6420.647355][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6420.647355][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6420.647355][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6420.647355][   T73]      netlink_rcv_skb+0x130/0x360
[ 6420.647355][   T73]      netlink_unicast+0x449/0x710
[ 6420.647355][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6420.647355][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6420.647355][   T73]      ___sys_sendmsg+0xee/0x170
[ 6420.647355][   T73]      __sys_sendmsg+0xcd/0x170
[ 6420.647355][   T73]      do_syscall_64+0xc6/0x1e0
[ 6420.647355][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6420.647355][   T73] 
[ 6420.649368][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6420.649368][   T73]      netdev_get_by_index+0x5e/0x80
[ 6420.649368][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6420.649368][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6420.649368][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6420.649368][   T73]      ipv6_add_addr+0x411/0x2000
[ 6420.649368][   T73]      inet6_addr_add+0x30e/0xa40
[ 6420.649368][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6420.649368][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6420.649368][   T73]      netlink_rcv_skb+0x130/0x360
[ 6420.649368][   T73]      netlink_unicast+0x449/0x710
[ 6420.649368][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6420.649368][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6420.649368][   T73]      ___sys_sendmsg+0xee/0x170
[ 6420.649368][   T73]      __sys_sendmsg+0xcd/0x170
[ 6420.649368][   T73]      do_syscall_64+0xc6/0x1e0
[ 6420.649368][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6420.649368][   T73] 
[ 6420.651493][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6420.651493][   T73]      netdev_get_by_index+0x5e/0x80
[ 6420.651493][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6420.651493][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6420.651493][   T73]      ip6_route_add+0x1c/0x140
[ 6420.651493][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6420.651493][   T73]      addrconf_add_dev+0xe2/0x170
[ 6420.651493][   T73]      inet6_addr_add+0x12f/0xa40
[ 6420.651493][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6420.651493][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6420.651493][   T73]      netlink_rcv_skb+0x130/0x360
[ 6420.651493][   T73]      netlink_unicast+0x449/0x710
[ 6420.651493][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6420.651493][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6420.651493][   T73]      ___sys_sendmsg+0xee/0x170
[ 6420.651493][   T73]      __sys_sendmsg+0xcd/0x170
[ 6420.651493][   T73]      do_syscall_64+0xc6/0x1e0
[ 6420.651493][   T73] 
[ 6420.653484][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6420.653484][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6420.653484][   T73]      ipv6_find_idev+0x102/0x170
[ 6420.653484][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6420.653484][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6420.653484][   T73]      netlink_rcv_skb+0x130/0x360
[ 6420.653484][   T73]      netlink_unicast+0x449/0x710
[ 6420.653484][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6420.653484][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6420.653484][   T73]      ___sys_sendmsg+0xee/0x170
[ 6420.653484][   T73]      __sys_sendmsg+0xcd/0x170
[ 6420.653484][   T73]      do_syscall_64+0xc6/0x1e0
[ 6420.653484][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6420.653484][   T73] 
[ 6420.655042][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6420.655042][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6420.655042][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6420.655042][   T73]      ipv6_find_idev+0x102/0x170
[ 6420.655042][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6420.655042][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6420.655042][   T73]      netlink_rcv_skb+0x130/0x360
[ 6420.655042][   T73]      netlink_unicast+0x449/0x710
[ 6420.655042][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6420.655042][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6420.655042][   T73]      ___sys_sendmsg+0xee/0x170
[ 6420.655042][   T73]      __sys_sendmsg+0xcd/0x170
[ 6420.655042][   T73]      do_syscall_64+0xc6/0x1e0
[ 6420.655042][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6420.655042][   T73] 
[ 6420.656749][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6420.657032][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6420.657032][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6420.657032][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6420.657032][   T73]      fib6_nh_init+0xa22/0x1580
[ 6420.657032][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6420.657032][   T73]      ip6_route_add+0x1c/0x140
[ 6420.657032][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6420.657032][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6420.657032][   T73]      netlink_rcv_skb+0x130/0x360
[ 6420.657032][   T73]      netlink_unicast+0x449/0x710
[ 6420.657032][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6420.657032][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6420.657032][   T73]      ___sys_sendmsg+0xee/0x170
[ 6420.657032][   T73]      __sys_sendmsg+0xcd/0x170
[ 6420.657032][   T73]      do_syscall_64+0xc6/0x1e0
[ 6420.657032][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6420.657032][   T73] 
[ 6420.659121][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6420.659121][   T73]      dst_init+0x84/0x4a0
[ 6420.659121][   T73]      dst_alloc+0x97/0x150
[ 6420.659121][   T73]      ip6_dst_alloc+0x23/0x90
[ 6420.659121][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6420.659121][   T73]      ip6_pol_route+0x56f/0x840
[ 6420.659121][   T73]      fib6_rule_lookup+0x456/0x630
[ 6420.659121][   T73]      ip6_route_input+0x59c/0xa50
[ 6420.659121][   T73]      ipv6_rcv+0x397/0x810
[ 6420.659121][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6420.659121][   T73]      process_backlog+0x101/0x620
[ 6420.659121][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6420.659121][   T73]      net_rx_action+0x495/0xbe0
[ 6420.659121][   T73]      __do_softirq+0x1b5/0x7f6
[ 6420.659121][   T73] 
[ 6420.661015][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6420.661015][   T73]      netdev_get_by_index+0x5e/0x80
[ 6420.661015][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6420.661015][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6420.661015][   T73]      ip6_route_add+0x1c/0x140
[ 6420.661015][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6420.661015][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6420.661015][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6420.661015][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6420.661015][   T73]      netlink_rcv_skb+0x130/0x360
[ 6420.661015][   T73]      netlink_unicast+0x449/0x710
[ 6420.661015][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6420.661015][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6420.661015][   T73]      ___sys_sendmsg+0xee/0x170
[ 6420.661015][   T73]      __sys_sendmsg+0xcd/0x170
[ 6420.661015][   T73]      do_syscall_64+0xc6/0x1e0
[ 6420.661015][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6420.661015][   T73] 
[ 6420.663272][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6420.663272][   T73]      netdev_get_by_index+0x5e/0x80
[ 6420.663272][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6420.663272][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6420.663272][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6420.663272][   T73]      ipv6_add_addr+0x411/0x2000
[ 6420.663272][   T73]      inet6_addr_add+0x30e/0xa40
[ 6420.663272][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6420.663272][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6420.663272][   T73]      netlink_rcv_skb+0x130/0x360
[ 6420.663272][   T73]      netlink_unicast+0x449/0x710
[ 6420.663272][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6420.663272][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6420.663272][   T73]      ___sys_sendmsg+0xee/0x170
[ 6420.663272][   T73]      __sys_sendmsg+0xcd/0x170
[ 6420.663272][   T73]      do_syscall_64+0xc6/0x1e0
[ 6420.663272][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6420.663272][   T73] 
[ 6420.665568][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6420.665568][   T73]      netdev_get_by_index+0x5e/0x80
[ 6420.665568][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6420.665568][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6420.665568][   T73]      ip6_route_add+0x1c/0x140
[ 6420.665568][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6420.665568][   T73]      addrconf_add_dev+0xe2/0x170
[ 6420.665568][   T73]      inet6_addr_add+0x12f/0xa40
[ 6420.665568][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6420.665568][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6420.665568][   T73]      netlink_rcv_skb+0x130/0x360
[ 6420.665568][   T73]      netlink_unicast+0x449/0x710
[ 6420.665568][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6420.665568][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6420.665568][   T73]      ___sys_sendmsg+0xee/0x170
[ 6420.665568][   T73]      __sys_sendmsg+0xcd/0x170
[ 6420.665568][   T73]      do_syscall_64+0xc6/0x1e0
[ 6420.665568][   T73] 
[ 6420.667784][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6420.667784][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6420.667784][   T73]      ipv6_find_idev+0x102/0x170
[ 6420.667784][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6420.667784][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6420.667784][   T73]      netlink_rcv_skb+0x130/0x360
[ 6420.667784][   T73]      netlink_unicast+0x449/0x710
[ 6420.667784][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6420.667784][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6420.667784][   T73]      ___sys_sendmsg+0xee/0x170
[ 6420.667784][   T73]      __sys_sendmsg+0xcd/0x170
[ 6420.667784][   T73]      do_syscall_64+0xc6/0x1e0
[ 6420.667784][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6420.667784][   T73] 
[ 6420.669572][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6420.669572][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6420.669572][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6420.669572][   T73]      ipv6_find_idev+0x102/0x170
[ 6420.669572][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6420.669572][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6420.669572][   T73]      netlink_rcv_skb+0x130/0x360
[ 6420.669572][   T73]      netlink_unicast+0x449/0x710
[ 6420.669572][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6420.669572][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6420.669572][   T73]      ___sys_sendmsg+0xee/0x170
[ 6420.669572][   T73]      __sys_sendmsg+0xcd/0x170
[ 6420.669572][   T73]      do_syscall_64+0xc6/0x1e0
[ 6420.669572][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6420.669572][   T73] 
[ 6420.671447][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6420.672167][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6420.672167][   T73]      netdev_get_by_index+0x5e/0x80
[ 6420.672167][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6420.672167][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6420.672167][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6420.672167][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6420.672167][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6420.672167][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6420.672167][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6420.672167][   T73]      addrconf_dad_begin+0x310/0x670
[ 6420.672167][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6420.672167][   T73]      process_one_work+0x84d/0x18a0
[ 6420.672167][   T73]      worker_thread+0x587/0xd30
[ 6420.672167][   T73]      kthread+0x28a/0x350
[ 6420.672167][   T73]      ret_from_fork+0x31/0x70
[ 6420.672167][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6420.672167][   T73] 
[ 6420.674089][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6420.674089][   T73]      netdev_get_by_index+0x5e/0x80
[ 6420.674089][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6420.674089][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6420.674089][   T73]      ip6_route_add+0x1c/0x140
[ 6420.674089][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6420.674089][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6420.674089][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6420.674089][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6420.674089][   T73]      netlink_rcv_skb+0x130/0x360
[ 6420.674089][   T73]      netlink_unicast+0x449/0x710
[ 6420.674089][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6420.674089][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6420.674089][   T73]      ___sys_sendmsg+0xee/0x170
[ 6420.674089][   T73]      __sys_sendmsg+0xcd/0x170
[ 6420.674089][   T73]      do_syscall_64+0xc6/0x1e0
[ 6420.674089][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6420.674089][   T73] 
[ 6420.676232][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6420.676232][   T73]      netdev_get_by_index+0x5e/0x80
[ 6420.676232][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6420.676232][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6420.676232][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6420.676232][   T73]      ipv6_add_addr+0x411/0x2000
[ 6420.676232][   T73]      inet6_addr_add+0x30e/0xa40
[ 6420.676232][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6420.676232][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6420.676232][   T73]      netlink_rcv_skb+0x130/0x360
[ 6420.676232][   T73]      netlink_unicast+0x449/0x710
[ 6420.676232][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6420.676232][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6420.676232][   T73]      ___sys_sendmsg+0xee/0x170
[ 6420.676232][   T73]      __sys_sendmsg+0xcd/0x170
[ 6420.676232][   T73]      do_syscall_64+0xc6/0x1e0
[ 6420.676232][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6420.676232][   T73] 
[ 6420.678488][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6420.678488][   T73]      netdev_get_by_index+0x5e/0x80
[ 6420.678488][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6420.678488][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6420.678488][   T73]      ip6_route_add+0x1c/0x140
[ 6420.678488][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6420.678488][   T73]      addrconf_add_dev+0xe2/0x170
[ 6420.678488][   T73]      inet6_addr_add+0x12f/0xa40
[ 6420.678488][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6420.678488][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6420.678488][   T73]      netlink_rcv_skb+0x130/0x360
[ 6420.678488][   T73]      netlink_unicast+0x449/0x710
[ 6420.678488][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6420.678488][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6420.678488][   T73]      ___sys_sendmsg+0xee/0x170
[ 6420.678488][   T73]      __sys_sendmsg+0xcd/0x170
[ 6420.678488][   T73]      do_syscall_64+0xc6/0x1e0
[ 6420.678488][   T73] 
[ 6420.680651][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6420.680651][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6420.680651][   T73]      ipv6_find_idev+0x102/0x170
[ 6420.680651][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6420.680651][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6420.680651][   T73]      netlink_rcv_skb+0x130/0x360
[ 6420.680651][   T73]      netlink_unicast+0x449/0x710
[ 6420.680651][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6420.680651][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6420.680651][   T73]      ___sys_sendmsg+0xee/0x170
[ 6420.680651][   T73]      __sys_sendmsg+0xcd/0x170
[ 6420.680651][   T73]      do_syscall_64+0xc6/0x1e0
[ 6420.680651][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6420.680651][   T73] 
[ 6420.682446][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6420.682446][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6420.682446][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6420.682446][   T73]      ipv6_find_idev+0x102/0x170
[ 6420.682446][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6420.682446][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6420.682446][   T73]      netlink_rcv_skb+0x130/0x360
[ 6420.682446][   T73]      netlink_unicast+0x449/0x710
[ 6420.682446][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6420.682446][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6420.682446][   T73]      ___sys_sendmsg+0xee/0x170
[ 6420.682446][   T73]      __sys_sendmsg+0xcd/0x170
[ 6420.682446][   T73]      do_syscall_64+0xc6/0x1e0
[ 6420.682446][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6420.682446][   T73] 
[ 6430.871760][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6430.872167][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6430.872167][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6430.872167][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6430.872167][   T73]      fib6_nh_init+0xa22/0x1580
[ 6430.872167][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6430.872167][   T73]      ip6_route_add+0x1c/0x140
[ 6430.872167][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6430.872167][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6430.872167][   T73]      netlink_rcv_skb+0x130/0x360
[ 6430.872167][   T73]      netlink_unicast+0x449/0x710
[ 6430.872167][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6430.872167][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6430.872167][   T73]      ___sys_sendmsg+0xee/0x170
[ 6430.872167][   T73]      __sys_sendmsg+0xcd/0x170
[ 6430.872167][   T73]      do_syscall_64+0xc6/0x1e0
[ 6430.872167][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6430.872167][   T73] 
[ 6430.874059][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6430.874059][   T73]      dst_init+0x84/0x4a0
[ 6430.874059][   T73]      dst_alloc+0x97/0x150
[ 6430.874059][   T73]      ip6_dst_alloc+0x23/0x90
[ 6430.874059][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6430.874059][   T73]      ip6_pol_route+0x56f/0x840
[ 6430.874059][   T73]      fib6_rule_lookup+0x456/0x630
[ 6430.874059][   T73]      ip6_route_input+0x59c/0xa50
[ 6430.874059][   T73]      ipv6_rcv+0x397/0x810
[ 6430.874059][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6430.874059][   T73]      process_backlog+0x101/0x620
[ 6430.874059][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6430.874059][   T73]      net_rx_action+0x495/0xbe0
[ 6430.874059][   T73]      __do_softirq+0x1b5/0x7f6
[ 6430.874059][   T73] 
[ 6430.875715][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6430.875715][   T73]      netdev_get_by_index+0x5e/0x80
[ 6430.875715][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6430.875715][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6430.875715][   T73]      ip6_route_add+0x1c/0x140
[ 6430.875715][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6430.875715][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6430.875715][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6430.875715][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6430.875715][   T73]      netlink_rcv_skb+0x130/0x360
[ 6430.875715][   T73]      netlink_unicast+0x449/0x710
[ 6430.875715][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6430.875715][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6430.875715][   T73]      ___sys_sendmsg+0xee/0x170
[ 6430.875715][   T73]      __sys_sendmsg+0xcd/0x170
[ 6430.875715][   T73]      do_syscall_64+0xc6/0x1e0
[ 6430.875715][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6430.875715][   T73] 
[ 6430.877743][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6430.877743][   T73]      netdev_get_by_index+0x5e/0x80
[ 6430.877743][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6430.877743][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6430.877743][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6430.877743][   T73]      ipv6_add_addr+0x411/0x2000
[ 6430.877743][   T73]      inet6_addr_add+0x30e/0xa40
[ 6430.877743][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6430.877743][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6430.877743][   T73]      netlink_rcv_skb+0x130/0x360
[ 6430.877743][   T73]      netlink_unicast+0x449/0x710
[ 6430.877743][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6430.877743][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6430.877743][   T73]      ___sys_sendmsg+0xee/0x170
[ 6430.877743][   T73]      __sys_sendmsg+0xcd/0x170
[ 6430.877743][   T73]      do_syscall_64+0xc6/0x1e0
[ 6430.877743][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6430.877743][   T73] 
[ 6430.879857][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6430.879857][   T73]      netdev_get_by_index+0x5e/0x80
[ 6430.879857][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6430.879857][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6430.879857][   T73]      ip6_route_add+0x1c/0x140
[ 6430.879857][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6430.879857][   T73]      addrconf_add_dev+0xe2/0x170
[ 6430.879857][   T73]      inet6_addr_add+0x12f/0xa40
[ 6430.879857][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6430.879857][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6430.879857][   T73]      netlink_rcv_skb+0x130/0x360
[ 6430.879857][   T73]      netlink_unicast+0x449/0x710
[ 6430.879857][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6430.879857][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6430.879857][   T73]      ___sys_sendmsg+0xee/0x170
[ 6430.879857][   T73]      __sys_sendmsg+0xcd/0x170
[ 6430.879857][   T73]      do_syscall_64+0xc6/0x1e0
[ 6430.879857][   T73] 
[ 6430.881861][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6430.881861][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6430.881861][   T73]      ipv6_find_idev+0x102/0x170
[ 6430.881861][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6430.881861][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6430.881861][   T73]      netlink_rcv_skb+0x130/0x360
[ 6430.881861][   T73]      netlink_unicast+0x449/0x710
[ 6430.881861][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6430.881861][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6430.881861][   T73]      ___sys_sendmsg+0xee/0x170
[ 6430.881861][   T73]      __sys_sendmsg+0xcd/0x170
[ 6430.881861][   T73]      do_syscall_64+0xc6/0x1e0
[ 6430.881861][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6430.881861][   T73] 
[ 6430.883412][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6430.883412][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6430.883412][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6430.883412][   T73]      ipv6_find_idev+0x102/0x170
[ 6430.883412][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6430.883412][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6430.883412][   T73]      netlink_rcv_skb+0x130/0x360
[ 6430.883412][   T73]      netlink_unicast+0x449/0x710
[ 6430.883412][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6430.883412][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6430.883412][   T73]      ___sys_sendmsg+0xee/0x170
[ 6430.883412][   T73]      __sys_sendmsg+0xcd/0x170
[ 6430.883412][   T73]      do_syscall_64+0xc6/0x1e0
[ 6430.883412][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6430.883412][   T73] 
[ 6430.885114][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6430.885397][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6430.885397][   T73]      netdev_get_by_index+0x5e/0x80
[ 6430.885397][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6430.885397][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6430.885397][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6430.885397][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6430.885397][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6430.885397][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6430.885397][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6430.885397][   T73]      addrconf_dad_begin+0x310/0x670
[ 6430.885397][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6430.885397][   T73]      process_one_work+0x84d/0x18a0
[ 6430.885397][   T73]      worker_thread+0x587/0xd30
[ 6430.885397][   T73]      kthread+0x28a/0x350
[ 6430.885397][   T73]      ret_from_fork+0x31/0x70
[ 6430.885397][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6430.885397][   T73] 
[ 6430.887320][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6430.887320][   T73]      netdev_get_by_index+0x5e/0x80
[ 6430.887320][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6430.887320][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6430.887320][   T73]      ip6_route_add+0x1c/0x140
[ 6430.887320][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6430.887320][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6430.887320][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6430.887320][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6430.887320][   T73]      netlink_rcv_skb+0x130/0x360
[ 6430.887320][   T73]      netlink_unicast+0x449/0x710
[ 6430.887320][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6430.887320][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6430.887320][   T73]      ___sys_sendmsg+0xee/0x170
[ 6430.887320][   T73]      __sys_sendmsg+0xcd/0x170
[ 6430.887320][   T73]      do_syscall_64+0xc6/0x1e0
[ 6430.887320][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6430.887320][   T73] 
[ 6430.889328][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6430.889328][   T73]      netdev_get_by_index+0x5e/0x80
[ 6430.889328][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6430.889328][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6430.889328][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6430.889328][   T73]      ipv6_add_addr+0x411/0x2000
[ 6430.889328][   T73]      inet6_addr_add+0x30e/0xa40
[ 6430.889328][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6430.889328][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6430.889328][   T73]      netlink_rcv_skb+0x130/0x360
[ 6430.889328][   T73]      netlink_unicast+0x449/0x710
[ 6430.889328][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6430.889328][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6430.889328][   T73]      ___sys_sendmsg+0xee/0x170
[ 6430.889328][   T73]      __sys_sendmsg+0xcd/0x170
[ 6430.889328][   T73]      do_syscall_64+0xc6/0x1e0
[ 6430.889328][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6430.889328][   T73] 
[ 6430.891320][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6430.891320][   T73]      netdev_get_by_index+0x5e/0x80
[ 6430.891320][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6430.891320][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6430.891320][   T73]      ip6_route_add+0x1c/0x140
[ 6430.891320][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6430.891320][   T73]      addrconf_add_dev+0xe2/0x170
[ 6430.891320][   T73]      inet6_addr_add+0x12f/0xa40
[ 6430.891320][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6430.891320][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6430.891320][   T73]      netlink_rcv_skb+0x130/0x360
[ 6430.891320][   T73]      netlink_unicast+0x449/0x710
[ 6430.891320][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6430.891320][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6430.891320][   T73]      ___sys_sendmsg+0xee/0x170
[ 6430.891320][   T73]      __sys_sendmsg+0xcd/0x170
[ 6430.891320][   T73]      do_syscall_64+0xc6/0x1e0
[ 6430.891320][   T73] 
[ 6430.893303][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6430.893303][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6430.893303][   T73]      ipv6_find_idev+0x102/0x170
[ 6430.893303][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6430.893303][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6430.893303][   T73]      netlink_rcv_skb+0x130/0x360
[ 6430.893303][   T73]      netlink_unicast+0x449/0x710
[ 6430.893303][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6430.893303][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6430.893303][   T73]      ___sys_sendmsg+0xee/0x170
[ 6430.893303][   T73]      __sys_sendmsg+0xcd/0x170
[ 6430.893303][   T73]      do_syscall_64+0xc6/0x1e0
[ 6430.893303][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6430.893303][   T73] 
[ 6430.894858][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6430.894858][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6430.894858][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6430.894858][   T73]      ipv6_find_idev+0x102/0x170
[ 6430.894858][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6430.894858][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6430.894858][   T73]      netlink_rcv_skb+0x130/0x360
[ 6430.894858][   T73]      netlink_unicast+0x449/0x710
[ 6430.894858][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6430.894858][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6430.894858][   T73]      ___sys_sendmsg+0xee/0x170
[ 6430.894858][   T73]      __sys_sendmsg+0xcd/0x170
[ 6430.894858][   T73]      do_syscall_64+0xc6/0x1e0
[ 6430.894858][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6430.894858][   T73] 
[ 6430.896548][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6430.896848][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6430.896848][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6430.896848][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6430.896848][   T73]      fib6_nh_init+0xa22/0x1580
[ 6430.896848][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6430.896848][   T73]      ip6_route_add+0x1c/0x140
[ 6430.896848][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6430.896848][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6430.896848][   T73]      netlink_rcv_skb+0x130/0x360
[ 6430.896848][   T73]      netlink_unicast+0x449/0x710
[ 6430.896848][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6430.896848][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6430.896848][   T73]      ___sys_sendmsg+0xee/0x170
[ 6430.896848][   T73]      __sys_sendmsg+0xcd/0x170
[ 6430.896848][   T73]      do_syscall_64+0xc6/0x1e0
[ 6430.896848][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6430.896848][   T73] 
[ 6430.898929][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6430.898929][   T73]      dst_init+0x84/0x4a0
[ 6430.898929][   T73]      dst_alloc+0x97/0x150
[ 6430.898929][   T73]      ip6_dst_alloc+0x23/0x90
[ 6430.898929][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6430.898929][   T73]      ip6_pol_route+0x56f/0x840
[ 6430.898929][   T73]      fib6_rule_lookup+0x456/0x630
[ 6430.898929][   T73]      ip6_route_input+0x59c/0xa50
[ 6430.898929][   T73]      ipv6_rcv+0x397/0x810
[ 6430.898929][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6430.898929][   T73]      process_backlog+0x101/0x620
[ 6430.898929][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6430.898929][   T73]      net_rx_action+0x495/0xbe0
[ 6430.898929][   T73]      __do_softirq+0x1b5/0x7f6
[ 6430.898929][   T73] 
[ 6430.900809][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6430.900809][   T73]      netdev_get_by_index+0x5e/0x80
[ 6430.900809][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6430.900809][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6430.900809][   T73]      ip6_route_add+0x1c/0x140
[ 6430.900809][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6430.900809][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6430.900809][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6430.900809][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6430.900809][   T73]      netlink_rcv_skb+0x130/0x360
[ 6430.900809][   T73]      netlink_unicast+0x449/0x710
[ 6430.900809][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6430.900809][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6430.900809][   T73]      ___sys_sendmsg+0xee/0x170
[ 6430.900809][   T73]      __sys_sendmsg+0xcd/0x170
[ 6430.900809][   T73]      do_syscall_64+0xc6/0x1e0
[ 6430.900809][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6430.900809][   T73] 
[ 6430.903053][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6430.903053][   T73]      netdev_get_by_index+0x5e/0x80
[ 6430.903053][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6430.903053][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6430.903053][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6430.903053][   T73]      ipv6_add_addr+0x411/0x2000
[ 6430.903053][   T73]      inet6_addr_add+0x30e/0xa40
[ 6430.903053][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6430.903053][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6430.903053][   T73]      netlink_rcv_skb+0x130/0x360
[ 6430.903053][   T73]      netlink_unicast+0x449/0x710
[ 6430.903053][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6430.903053][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6430.903053][   T73]      ___sys_sendmsg+0xee/0x170
[ 6430.903053][   T73]      __sys_sendmsg+0xcd/0x170
[ 6430.903053][   T73]      do_syscall_64+0xc6/0x1e0
[ 6430.903053][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6430.903053][   T73] 
[ 6430.905328][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6430.905328][   T73]      netdev_get_by_index+0x5e/0x80
[ 6430.905328][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6430.905328][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6430.905328][   T73]      ip6_route_add+0x1c/0x140
[ 6430.905328][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6430.905328][   T73]      addrconf_add_dev+0xe2/0x170
[ 6430.905328][   T73]      inet6_addr_add+0x12f/0xa40
[ 6430.905328][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6430.905328][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6430.905328][   T73]      netlink_rcv_skb+0x130/0x360
[ 6430.905328][   T73]      netlink_unicast+0x449/0x710
[ 6430.905328][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6430.905328][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6430.905328][   T73]      ___sys_sendmsg+0xee/0x170
[ 6430.905328][   T73]      __sys_sendmsg+0xcd/0x170
[ 6430.905328][   T73]      do_syscall_64+0xc6/0x1e0
[ 6430.905328][   T73] 
[ 6430.907504][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6430.907504][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6430.907504][   T73]      ipv6_find_idev+0x102/0x170
[ 6430.907504][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6430.907504][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6430.907504][   T73]      netlink_rcv_skb+0x130/0x360
[ 6430.907504][   T73]      netlink_unicast+0x449/0x710
[ 6430.907504][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6430.907504][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6430.907504][   T73]      ___sys_sendmsg+0xee/0x170
[ 6430.907504][   T73]      __sys_sendmsg+0xcd/0x170
[ 6430.907504][   T73]      do_syscall_64+0xc6/0x1e0
[ 6430.907504][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6430.907504][   T73] 
[ 6430.909843][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6430.909843][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6430.909843][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6430.909843][   T73]      ipv6_find_idev+0x102/0x170
[ 6430.909843][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6430.909843][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6430.909843][   T73]      netlink_rcv_skb+0x130/0x360
[ 6430.909843][   T73]      netlink_unicast+0x449/0x710
[ 6430.909843][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6430.909843][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6430.909843][   T73]      ___sys_sendmsg+0xee/0x170
[ 6430.909843][   T73]      __sys_sendmsg+0xcd/0x170
[ 6430.909843][   T73]      do_syscall_64+0xc6/0x1e0
[ 6430.909843][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6430.909843][   T73] 
[ 6430.911784][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6430.912051][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6430.912051][   T73]      netdev_get_by_index+0x5e/0x80
[ 6430.912051][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6430.912051][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6430.912051][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6430.912051][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6430.912051][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6430.912051][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6430.912051][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6430.912051][   T73]      addrconf_dad_begin+0x310/0x670
[ 6430.912051][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6430.912051][   T73]      process_one_work+0x84d/0x18a0
[ 6430.912051][   T73]      worker_thread+0x587/0xd30
[ 6430.912051][   T73]      kthread+0x28a/0x350
[ 6430.912051][   T73]      ret_from_fork+0x31/0x70
[ 6430.912051][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6430.912051][   T73] 
[ 6430.914236][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6430.914236][   T73]      netdev_get_by_index+0x5e/0x80
[ 6430.914236][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6430.914236][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6430.914236][   T73]      ip6_route_add+0x1c/0x140
[ 6430.914236][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6430.914236][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6430.914236][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6430.914236][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6430.914236][   T73]      netlink_rcv_skb+0x130/0x360
[ 6430.914236][   T73]      netlink_unicast+0x449/0x710
[ 6430.914236][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6430.914236][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6430.914236][   T73]      ___sys_sendmsg+0xee/0x170
[ 6430.914236][   T73]      __sys_sendmsg+0xcd/0x170
[ 6430.914236][   T73]      do_syscall_64+0xc6/0x1e0
[ 6430.914236][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6430.914236][   T73] 
[ 6430.916496][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6430.916496][   T73]      netdev_get_by_index+0x5e/0x80
[ 6430.916496][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6430.916496][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6430.916496][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6430.916496][   T73]      ipv6_add_addr+0x411/0x2000
[ 6430.916496][   T73]      inet6_addr_add+0x30e/0xa40
[ 6430.916496][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6430.916496][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6430.916496][   T73]      netlink_rcv_skb+0x130/0x360
[ 6430.916496][   T73]      netlink_unicast+0x449/0x710
[ 6430.916496][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6430.916496][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6430.916496][   T73]      ___sys_sendmsg+0xee/0x170
[ 6430.916496][   T73]      __sys_sendmsg+0xcd/0x170
[ 6430.916496][   T73]      do_syscall_64+0xc6/0x1e0
[ 6430.916496][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6430.916496][   T73] 
[ 6430.918689][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6430.918689][   T73]      netdev_get_by_index+0x5e/0x80
[ 6430.918689][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6430.918689][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6430.918689][   T73]      ip6_route_add+0x1c/0x140
[ 6430.918689][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6430.918689][   T73]      addrconf_add_dev+0xe2/0x170
[ 6430.918689][   T73]      inet6_addr_add+0x12f/0xa40
[ 6430.918689][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6430.918689][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6430.918689][   T73]      netlink_rcv_skb+0x130/0x360
[ 6430.918689][   T73]      netlink_unicast+0x449/0x710
[ 6430.918689][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6430.918689][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6430.918689][   T73]      ___sys_sendmsg+0xee/0x170
[ 6430.918689][   T73]      __sys_sendmsg+0xcd/0x170
[ 6430.918689][   T73]      do_syscall_64+0xc6/0x1e0
[ 6430.918689][   T73] 
[ 6430.921611][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6430.921611][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6430.921611][   T73]      ipv6_find_idev+0x102/0x170
[ 6430.921611][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6430.921611][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6430.921611][   T73]      netlink_rcv_skb+0x130/0x360
[ 6430.921611][   T73]      netlink_unicast+0x449/0x710
[ 6430.921611][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6430.921611][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6430.921611][   T73]      ___sys_sendmsg+0xee/0x170
[ 6430.921611][   T73]      __sys_sendmsg+0xcd/0x170
[ 6430.921611][   T73]      do_syscall_64+0xc6/0x1e0
[ 6430.921611][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6430.921611][   T73] 
[ 6430.923332][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6430.923332][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6430.923332][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6430.923332][   T73]      ipv6_find_idev+0x102/0x170
[ 6430.923332][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6430.923332][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6430.923332][   T73]      netlink_rcv_skb+0x130/0x360
[ 6430.923332][   T73]      netlink_unicast+0x449/0x710
[ 6430.923332][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6430.923332][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6430.923332][   T73]      ___sys_sendmsg+0xee/0x170
[ 6430.923332][   T73]      __sys_sendmsg+0xcd/0x170
[ 6430.923332][   T73]      do_syscall_64+0xc6/0x1e0
[ 6430.923332][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6430.923332][   T73] 
[ 6441.175830][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6441.176289][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6441.176289][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6441.176289][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6441.176289][   T73]      fib6_nh_init+0xa22/0x1580
[ 6441.176289][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6441.176289][   T73]      ip6_route_add+0x1c/0x140
[ 6441.176289][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6441.176289][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6441.176289][   T73]      netlink_rcv_skb+0x130/0x360
[ 6441.176289][   T73]      netlink_unicast+0x449/0x710
[ 6441.176289][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6441.176289][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6441.176289][   T73]      ___sys_sendmsg+0xee/0x170
[ 6441.176289][   T73]      __sys_sendmsg+0xcd/0x170
[ 6441.176289][   T73]      do_syscall_64+0xc6/0x1e0
[ 6441.176289][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6441.176289][   T73] 
[ 6441.178207][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6441.178207][   T73]      dst_init+0x84/0x4a0
[ 6441.178207][   T73]      dst_alloc+0x97/0x150
[ 6441.178207][   T73]      ip6_dst_alloc+0x23/0x90
[ 6441.178207][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6441.178207][   T73]      ip6_pol_route+0x56f/0x840
[ 6441.178207][   T73]      fib6_rule_lookup+0x456/0x630
[ 6441.178207][   T73]      ip6_route_input+0x59c/0xa50
[ 6441.178207][   T73]      ipv6_rcv+0x397/0x810
[ 6441.178207][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6441.178207][   T73]      process_backlog+0x101/0x620
[ 6441.178207][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6441.178207][   T73]      net_rx_action+0x495/0xbe0
[ 6441.178207][   T73]      __do_softirq+0x1b5/0x7f6
[ 6441.178207][   T73] 
[ 6441.179850][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6441.179850][   T73]      netdev_get_by_index+0x5e/0x80
[ 6441.179850][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6441.179850][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6441.179850][   T73]      ip6_route_add+0x1c/0x140
[ 6441.179850][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6441.179850][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6441.179850][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6441.179850][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6441.179850][   T73]      netlink_rcv_skb+0x130/0x360
[ 6441.179850][   T73]      netlink_unicast+0x449/0x710
[ 6441.179850][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6441.179850][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6441.179850][   T73]      ___sys_sendmsg+0xee/0x170
[ 6441.179850][   T73]      __sys_sendmsg+0xcd/0x170
[ 6441.179850][   T73]      do_syscall_64+0xc6/0x1e0
[ 6441.179850][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6441.179850][   T73] 
[ 6441.181855][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6441.181855][   T73]      netdev_get_by_index+0x5e/0x80
[ 6441.181855][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6441.181855][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6441.181855][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6441.181855][   T73]      ipv6_add_addr+0x411/0x2000
[ 6441.181855][   T73]      inet6_addr_add+0x30e/0xa40
[ 6441.181855][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6441.181855][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6441.181855][   T73]      netlink_rcv_skb+0x130/0x360
[ 6441.181855][   T73]      netlink_unicast+0x449/0x710
[ 6441.181855][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6441.181855][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6441.181855][   T73]      ___sys_sendmsg+0xee/0x170
[ 6441.181855][   T73]      __sys_sendmsg+0xcd/0x170
[ 6441.181855][   T73]      do_syscall_64+0xc6/0x1e0
[ 6441.181855][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6441.181855][   T73] 
[ 6441.183851][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6441.183851][   T73]      netdev_get_by_index+0x5e/0x80
[ 6441.183851][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6441.183851][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6441.183851][   T73]      ip6_route_add+0x1c/0x140
[ 6441.183851][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6441.183851][   T73]      addrconf_add_dev+0xe2/0x170
[ 6441.183851][   T73]      inet6_addr_add+0x12f/0xa40
[ 6441.183851][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6441.183851][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6441.183851][   T73]      netlink_rcv_skb+0x130/0x360
[ 6441.183851][   T73]      netlink_unicast+0x449/0x710
[ 6441.183851][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6441.183851][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6441.183851][   T73]      ___sys_sendmsg+0xee/0x170
[ 6441.183851][   T73]      __sys_sendmsg+0xcd/0x170
[ 6441.183851][   T73]      do_syscall_64+0xc6/0x1e0
[ 6441.183851][   T73] 
[ 6441.185816][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6441.185816][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6441.185816][   T73]      ipv6_find_idev+0x102/0x170
[ 6441.185816][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6441.185816][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6441.185816][   T73]      netlink_rcv_skb+0x130/0x360
[ 6441.185816][   T73]      netlink_unicast+0x449/0x710
[ 6441.185816][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6441.185816][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6441.185816][   T73]      ___sys_sendmsg+0xee/0x170
[ 6441.185816][   T73]      __sys_sendmsg+0xcd/0x170
[ 6441.185816][   T73]      do_syscall_64+0xc6/0x1e0
[ 6441.185816][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6441.185816][   T73] 
[ 6441.187352][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6441.187352][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6441.187352][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6441.187352][   T73]      ipv6_find_idev+0x102/0x170
[ 6441.187352][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6441.187352][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6441.187352][   T73]      netlink_rcv_skb+0x130/0x360
[ 6441.187352][   T73]      netlink_unicast+0x449/0x710
[ 6441.187352][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6441.187352][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6441.187352][   T73]      ___sys_sendmsg+0xee/0x170
[ 6441.187352][   T73]      __sys_sendmsg+0xcd/0x170
[ 6441.187352][   T73]      do_syscall_64+0xc6/0x1e0
[ 6441.187352][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6441.187352][   T73] 
[ 6441.189037][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6441.189317][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6441.189317][   T73]      netdev_get_by_index+0x5e/0x80
[ 6441.189317][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6441.189317][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6441.189317][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6441.189317][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6441.189317][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6441.189317][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6441.189317][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6441.189317][   T73]      addrconf_dad_begin+0x310/0x670
[ 6441.189317][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6441.189317][   T73]      process_one_work+0x84d/0x18a0
[ 6441.189317][   T73]      worker_thread+0x587/0xd30
[ 6441.189317][   T73]      kthread+0x28a/0x350
[ 6441.189317][   T73]      ret_from_fork+0x31/0x70
[ 6441.189317][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6441.189317][   T73] 
[ 6441.191219][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6441.191219][   T73]      netdev_get_by_index+0x5e/0x80
[ 6441.191219][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6441.191219][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6441.191219][   T73]      ip6_route_add+0x1c/0x140
[ 6441.191219][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6441.191219][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6441.191219][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6441.191219][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6441.191219][   T73]      netlink_rcv_skb+0x130/0x360
[ 6441.191219][   T73]      netlink_unicast+0x449/0x710
[ 6441.191219][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6441.191219][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6441.191219][   T73]      ___sys_sendmsg+0xee/0x170
[ 6441.191219][   T73]      __sys_sendmsg+0xcd/0x170
[ 6441.191219][   T73]      do_syscall_64+0xc6/0x1e0
[ 6441.191219][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6441.191219][   T73] 
[ 6441.193216][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6441.193216][   T73]      netdev_get_by_index+0x5e/0x80
[ 6441.193216][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6441.193216][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6441.193216][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6441.193216][   T73]      ipv6_add_addr+0x411/0x2000
[ 6441.193216][   T73]      inet6_addr_add+0x30e/0xa40
[ 6441.193216][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6441.193216][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6441.193216][   T73]      netlink_rcv_skb+0x130/0x360
[ 6441.193216][   T73]      netlink_unicast+0x449/0x710
[ 6441.193216][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6441.193216][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6441.193216][   T73]      ___sys_sendmsg+0xee/0x170
[ 6441.193216][   T73]      __sys_sendmsg+0xcd/0x170
[ 6441.193216][   T73]      do_syscall_64+0xc6/0x1e0
[ 6441.193216][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6441.193216][   T73] 
[ 6441.195213][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6441.195213][   T73]      netdev_get_by_index+0x5e/0x80
[ 6441.195213][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6441.195213][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6441.195213][   T73]      ip6_route_add+0x1c/0x140
[ 6441.195213][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6441.195213][   T73]      addrconf_add_dev+0xe2/0x170
[ 6441.195213][   T73]      inet6_addr_add+0x12f/0xa40
[ 6441.195213][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6441.195213][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6441.195213][   T73]      netlink_rcv_skb+0x130/0x360
[ 6441.195213][   T73]      netlink_unicast+0x449/0x710
[ 6441.195213][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6441.195213][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6441.195213][   T73]      ___sys_sendmsg+0xee/0x170
[ 6441.195213][   T73]      __sys_sendmsg+0xcd/0x170
[ 6441.195213][   T73]      do_syscall_64+0xc6/0x1e0
[ 6441.195213][   T73] 
[ 6441.197200][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6441.197200][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6441.197200][   T73]      ipv6_find_idev+0x102/0x170
[ 6441.197200][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6441.197200][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6441.197200][   T73]      netlink_rcv_skb+0x130/0x360
[ 6441.197200][   T73]      netlink_unicast+0x449/0x710
[ 6441.197200][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6441.197200][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6441.197200][   T73]      ___sys_sendmsg+0xee/0x170
[ 6441.197200][   T73]      __sys_sendmsg+0xcd/0x170
[ 6441.197200][   T73]      do_syscall_64+0xc6/0x1e0
[ 6441.197200][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6441.197200][   T73] 
[ 6441.198734][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6441.198734][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6441.198734][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6441.198734][   T73]      ipv6_find_idev+0x102/0x170
[ 6441.198734][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6441.198734][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6441.198734][   T73]      netlink_rcv_skb+0x130/0x360
[ 6441.198734][   T73]      netlink_unicast+0x449/0x710
[ 6441.198734][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6441.198734][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6441.198734][   T73]      ___sys_sendmsg+0xee/0x170
[ 6441.198734][   T73]      __sys_sendmsg+0xcd/0x170
[ 6441.198734][   T73]      do_syscall_64+0xc6/0x1e0
[ 6441.198734][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6441.198734][   T73] 
[ 6441.200418][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6441.200714][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6441.200714][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6441.200714][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6441.200714][   T73]      fib6_nh_init+0xa22/0x1580
[ 6441.200714][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6441.200714][   T73]      ip6_route_add+0x1c/0x140
[ 6441.200714][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6441.200714][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6441.200714][   T73]      netlink_rcv_skb+0x130/0x360
[ 6441.200714][   T73]      netlink_unicast+0x449/0x710
[ 6441.200714][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6441.200714][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6441.200714][   T73]      ___sys_sendmsg+0xee/0x170
[ 6441.200714][   T73]      __sys_sendmsg+0xcd/0x170
[ 6441.200714][   T73]      do_syscall_64+0xc6/0x1e0
[ 6441.200714][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6441.200714][   T73] 
[ 6441.202797][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6441.202797][   T73]      dst_init+0x84/0x4a0
[ 6441.202797][   T73]      dst_alloc+0x97/0x150
[ 6441.202797][   T73]      ip6_dst_alloc+0x23/0x90
[ 6441.202797][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6441.202797][   T73]      ip6_pol_route+0x56f/0x840
[ 6441.202797][   T73]      fib6_rule_lookup+0x456/0x630
[ 6441.202797][   T73]      ip6_route_input+0x59c/0xa50
[ 6441.202797][   T73]      ipv6_rcv+0x397/0x810
[ 6441.202797][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6441.202797][   T73]      process_backlog+0x101/0x620
[ 6441.202797][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6441.202797][   T73]      net_rx_action+0x495/0xbe0
[ 6441.202797][   T73]      __do_softirq+0x1b5/0x7f6
[ 6441.202797][   T73] 
[ 6441.204625][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6441.204625][   T73]      netdev_get_by_index+0x5e/0x80
[ 6441.204625][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6441.204625][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6441.204625][   T73]      ip6_route_add+0x1c/0x140
[ 6441.204625][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6441.204625][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6441.204625][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6441.204625][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6441.204625][   T73]      netlink_rcv_skb+0x130/0x360
[ 6441.204625][   T73]      netlink_unicast+0x449/0x710
[ 6441.204625][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6441.204625][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6441.204625][   T73]      ___sys_sendmsg+0xee/0x170
[ 6441.204625][   T73]      __sys_sendmsg+0xcd/0x170
[ 6441.204625][   T73]      do_syscall_64+0xc6/0x1e0
[ 6441.204625][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6441.204625][   T73] 
[ 6441.206856][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6441.206856][   T73]      netdev_get_by_index+0x5e/0x80
[ 6441.206856][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6441.206856][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6441.206856][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6441.206856][   T73]      ipv6_add_addr+0x411/0x2000
[ 6441.206856][   T73]      inet6_addr_add+0x30e/0xa40
[ 6441.206856][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6441.206856][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6441.206856][   T73]      netlink_rcv_skb+0x130/0x360
[ 6441.206856][   T73]      netlink_unicast+0x449/0x710
[ 6441.206856][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6441.206856][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6441.206856][   T73]      ___sys_sendmsg+0xee/0x170
[ 6441.206856][   T73]      __sys_sendmsg+0xcd/0x170
[ 6441.206856][   T73]      do_syscall_64+0xc6/0x1e0
[ 6441.206856][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6441.206856][   T73] 
[ 6441.209151][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6441.209151][   T73]      netdev_get_by_index+0x5e/0x80
[ 6441.209151][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6441.209151][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6441.209151][   T73]      ip6_route_add+0x1c/0x140
[ 6441.209151][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6441.209151][   T73]      addrconf_add_dev+0xe2/0x170
[ 6441.209151][   T73]      inet6_addr_add+0x12f/0xa40
[ 6441.209151][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6441.209151][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6441.209151][   T73]      netlink_rcv_skb+0x130/0x360
[ 6441.209151][   T73]      netlink_unicast+0x449/0x710
[ 6441.209151][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6441.209151][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6441.209151][   T73]      ___sys_sendmsg+0xee/0x170
[ 6441.209151][   T73]      __sys_sendmsg+0xcd/0x170
[ 6441.209151][   T73]      do_syscall_64+0xc6/0x1e0
[ 6441.209151][   T73] 
[ 6441.211223][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6441.211223][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6441.211223][   T73]      ipv6_find_idev+0x102/0x170
[ 6441.211223][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6441.211223][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6441.211223][   T73]      netlink_rcv_skb+0x130/0x360
[ 6441.211223][   T73]      netlink_unicast+0x449/0x710
[ 6441.211223][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6441.211223][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6441.211223][   T73]      ___sys_sendmsg+0xee/0x170
[ 6441.211223][   T73]      __sys_sendmsg+0xcd/0x170
[ 6441.211223][   T73]      do_syscall_64+0xc6/0x1e0
[ 6441.211223][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6441.211223][   T73] 
[ 6441.212938][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6441.212938][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6441.212938][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6441.212938][   T73]      ipv6_find_idev+0x102/0x170
[ 6441.212938][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6441.212938][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6441.212938][   T73]      netlink_rcv_skb+0x130/0x360
[ 6441.212938][   T73]      netlink_unicast+0x449/0x710
[ 6441.212938][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6441.212938][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6441.212938][   T73]      ___sys_sendmsg+0xee/0x170
[ 6441.212938][   T73]      __sys_sendmsg+0xcd/0x170
[ 6441.212938][   T73]      do_syscall_64+0xc6/0x1e0
[ 6441.212938][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6441.212938][   T73] 
[ 6441.214859][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6441.215133][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6441.215133][   T73]      netdev_get_by_index+0x5e/0x80
[ 6441.215133][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6441.215133][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6441.215133][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6441.215133][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6441.215133][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6441.215133][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6441.215133][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6441.215133][   T73]      addrconf_dad_begin+0x310/0x670
[ 6441.215133][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6441.215133][   T73]      process_one_work+0x84d/0x18a0
[ 6441.215133][   T73]      worker_thread+0x587/0xd30
[ 6441.215133][   T73]      kthread+0x28a/0x350
[ 6441.215133][   T73]      ret_from_fork+0x31/0x70
[ 6441.215133][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6441.215133][   T73] 
[ 6441.217285][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6441.217285][   T73]      netdev_get_by_index+0x5e/0x80
[ 6441.217285][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6441.217285][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6441.217285][   T73]      ip6_route_add+0x1c/0x140
[ 6441.217285][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6441.217285][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6441.217285][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6441.217285][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6441.217285][   T73]      netlink_rcv_skb+0x130/0x360
[ 6441.217285][   T73]      netlink_unicast+0x449/0x710
[ 6441.217285][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6441.217285][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6441.217285][   T73]      ___sys_sendmsg+0xee/0x170
[ 6441.217285][   T73]      __sys_sendmsg+0xcd/0x170
[ 6441.217285][   T73]      do_syscall_64+0xc6/0x1e0
[ 6441.217285][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6441.217285][   T73] 
[ 6441.219581][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6441.219581][   T73]      netdev_get_by_index+0x5e/0x80
[ 6441.219581][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6441.219581][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6441.219581][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6441.219581][   T73]      ipv6_add_addr+0x411/0x2000
[ 6441.219581][   T73]      inet6_addr_add+0x30e/0xa40
[ 6441.219581][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6441.219581][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6441.219581][   T73]      netlink_rcv_skb+0x130/0x360
[ 6441.219581][   T73]      netlink_unicast+0x449/0x710
[ 6441.219581][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6441.219581][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6441.219581][   T73]      ___sys_sendmsg+0xee/0x170
[ 6441.219581][   T73]      __sys_sendmsg+0xcd/0x170
[ 6441.219581][   T73]      do_syscall_64+0xc6/0x1e0
[ 6441.219581][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6441.219581][   T73] 
[ 6441.221763][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6441.221763][   T73]      netdev_get_by_index+0x5e/0x80
[ 6441.221763][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6441.221763][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6441.221763][   T73]      ip6_route_add+0x1c/0x140
[ 6441.221763][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6441.221763][   T73]      addrconf_add_dev+0xe2/0x170
[ 6441.221763][   T73]      inet6_addr_add+0x12f/0xa40
[ 6441.221763][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6441.221763][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6441.221763][   T73]      netlink_rcv_skb+0x130/0x360
[ 6441.221763][   T73]      netlink_unicast+0x449/0x710
[ 6441.221763][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6441.221763][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6441.221763][   T73]      ___sys_sendmsg+0xee/0x170
[ 6441.221763][   T73]      __sys_sendmsg+0xcd/0x170
[ 6441.221763][   T73]      do_syscall_64+0xc6/0x1e0
[ 6441.221763][   T73] 
[ 6441.223957][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6441.223957][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6441.223957][   T73]      ipv6_find_idev+0x102/0x170
[ 6441.223957][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6441.223957][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6441.223957][   T73]      netlink_rcv_skb+0x130/0x360
[ 6441.223957][   T73]      netlink_unicast+0x449/0x710
[ 6441.223957][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6441.223957][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6441.223957][   T73]      ___sys_sendmsg+0xee/0x170
[ 6441.223957][   T73]      __sys_sendmsg+0xcd/0x170
[ 6441.223957][   T73]      do_syscall_64+0xc6/0x1e0
[ 6441.223957][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6441.223957][   T73] 
[ 6441.225680][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6441.225680][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6441.225680][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6441.225680][   T73]      ipv6_find_idev+0x102/0x170
[ 6441.225680][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6441.225680][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6441.225680][   T73]      netlink_rcv_skb+0x130/0x360
[ 6441.225680][   T73]      netlink_unicast+0x449/0x710
[ 6441.225680][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6441.225680][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6441.225680][   T73]      ___sys_sendmsg+0xee/0x170
[ 6441.225680][   T73]      __sys_sendmsg+0xcd/0x170
[ 6441.225680][   T73]      do_syscall_64+0xc6/0x1e0
[ 6441.225680][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6441.225680][   T73] 
[ 6451.335788][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6451.336237][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6451.336237][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6451.336237][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6451.336237][   T73]      fib6_nh_init+0xa22/0x1580
[ 6451.336237][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6451.336237][   T73]      ip6_route_add+0x1c/0x140
[ 6451.336237][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6451.336237][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6451.336237][   T73]      netlink_rcv_skb+0x130/0x360
[ 6451.336237][   T73]      netlink_unicast+0x449/0x710
[ 6451.336237][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6451.336237][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6451.336237][   T73]      ___sys_sendmsg+0xee/0x170
[ 6451.336237][   T73]      __sys_sendmsg+0xcd/0x170
[ 6451.336237][   T73]      do_syscall_64+0xc6/0x1e0
[ 6451.336237][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6451.336237][   T73] 
[ 6451.338139][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6451.338139][   T73]      dst_init+0x84/0x4a0
[ 6451.338139][   T73]      dst_alloc+0x97/0x150
[ 6451.338139][   T73]      ip6_dst_alloc+0x23/0x90
[ 6451.338139][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6451.338139][   T73]      ip6_pol_route+0x56f/0x840
[ 6451.338139][   T73]      fib6_rule_lookup+0x456/0x630
[ 6451.338139][   T73]      ip6_route_input+0x59c/0xa50
[ 6451.338139][   T73]      ipv6_rcv+0x397/0x810
[ 6451.338139][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6451.338139][   T73]      process_backlog+0x101/0x620
[ 6451.338139][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6451.338139][   T73]      net_rx_action+0x495/0xbe0
[ 6451.338139][   T73]      __do_softirq+0x1b5/0x7f6
[ 6451.338139][   T73] 
[ 6451.339798][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6451.339798][   T73]      netdev_get_by_index+0x5e/0x80
[ 6451.339798][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6451.339798][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6451.339798][   T73]      ip6_route_add+0x1c/0x140
[ 6451.339798][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6451.339798][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6451.339798][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6451.339798][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6451.339798][   T73]      netlink_rcv_skb+0x130/0x360
[ 6451.339798][   T73]      netlink_unicast+0x449/0x710
[ 6451.339798][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6451.339798][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6451.339798][   T73]      ___sys_sendmsg+0xee/0x170
[ 6451.339798][   T73]      __sys_sendmsg+0xcd/0x170
[ 6451.339798][   T73]      do_syscall_64+0xc6/0x1e0
[ 6451.339798][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6451.339798][   T73] 
[ 6451.341797][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6451.341797][   T73]      netdev_get_by_index+0x5e/0x80
[ 6451.341797][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6451.341797][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6451.341797][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6451.341797][   T73]      ipv6_add_addr+0x411/0x2000
[ 6451.341797][   T73]      inet6_addr_add+0x30e/0xa40
[ 6451.341797][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6451.341797][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6451.341797][   T73]      netlink_rcv_skb+0x130/0x360
[ 6451.341797][   T73]      netlink_unicast+0x449/0x710
[ 6451.341797][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6451.341797][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6451.341797][   T73]      ___sys_sendmsg+0xee/0x170
[ 6451.341797][   T73]      __sys_sendmsg+0xcd/0x170
[ 6451.341797][   T73]      do_syscall_64+0xc6/0x1e0
[ 6451.341797][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6451.341797][   T73] 
[ 6451.343837][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6451.343837][   T73]      netdev_get_by_index+0x5e/0x80
[ 6451.343837][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6451.343837][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6451.343837][   T73]      ip6_route_add+0x1c/0x140
[ 6451.343837][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6451.343837][   T73]      addrconf_add_dev+0xe2/0x170
[ 6451.343837][   T73]      inet6_addr_add+0x12f/0xa40
[ 6451.343837][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6451.343837][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6451.343837][   T73]      netlink_rcv_skb+0x130/0x360
[ 6451.343837][   T73]      netlink_unicast+0x449/0x710
[ 6451.343837][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6451.343837][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6451.343837][   T73]      ___sys_sendmsg+0xee/0x170
[ 6451.343837][   T73]      __sys_sendmsg+0xcd/0x170
[ 6451.343837][   T73]      do_syscall_64+0xc6/0x1e0
[ 6451.343837][   T73] 
[ 6451.345816][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6451.345816][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6451.345816][   T73]      ipv6_find_idev+0x102/0x170
[ 6451.345816][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6451.345816][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6451.345816][   T73]      netlink_rcv_skb+0x130/0x360
[ 6451.345816][   T73]      netlink_unicast+0x449/0x710
[ 6451.345816][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6451.345816][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6451.345816][   T73]      ___sys_sendmsg+0xee/0x170
[ 6451.345816][   T73]      __sys_sendmsg+0xcd/0x170
[ 6451.345816][   T73]      do_syscall_64+0xc6/0x1e0
[ 6451.345816][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6451.345816][   T73] 
[ 6451.347365][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6451.347365][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6451.347365][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6451.347365][   T73]      ipv6_find_idev+0x102/0x170
[ 6451.347365][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6451.347365][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6451.347365][   T73]      netlink_rcv_skb+0x130/0x360
[ 6451.347365][   T73]      netlink_unicast+0x449/0x710
[ 6451.347365][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6451.347365][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6451.347365][   T73]      ___sys_sendmsg+0xee/0x170
[ 6451.347365][   T73]      __sys_sendmsg+0xcd/0x170
[ 6451.347365][   T73]      do_syscall_64+0xc6/0x1e0
[ 6451.347365][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6451.347365][   T73] 
[ 6451.349084][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6451.349371][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6451.349371][   T73]      netdev_get_by_index+0x5e/0x80
[ 6451.349371][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6451.349371][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6451.349371][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6451.349371][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6451.349371][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6451.349371][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6451.349371][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6451.349371][   T73]      addrconf_dad_begin+0x310/0x670
[ 6451.349371][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6451.349371][   T73]      process_one_work+0x84d/0x18a0
[ 6451.349371][   T73]      worker_thread+0x587/0xd30
[ 6451.349371][   T73]      kthread+0x28a/0x350
[ 6451.349371][   T73]      ret_from_fork+0x31/0x70
[ 6451.349371][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6451.349371][   T73] 
[ 6451.351277][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6451.351277][   T73]      netdev_get_by_index+0x5e/0x80
[ 6451.351277][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6451.351277][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6451.351277][   T73]      ip6_route_add+0x1c/0x140
[ 6451.351277][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6451.351277][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6451.351277][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6451.351277][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6451.351277][   T73]      netlink_rcv_skb+0x130/0x360
[ 6451.351277][   T73]      netlink_unicast+0x449/0x710
[ 6451.351277][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6451.351277][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6451.351277][   T73]      ___sys_sendmsg+0xee/0x170
[ 6451.351277][   T73]      __sys_sendmsg+0xcd/0x170
[ 6451.351277][   T73]      do_syscall_64+0xc6/0x1e0
[ 6451.351277][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6451.351277][   T73] 
[ 6451.353283][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6451.353283][   T73]      netdev_get_by_index+0x5e/0x80
[ 6451.353283][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6451.353283][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6451.353283][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6451.353283][   T73]      ipv6_add_addr+0x411/0x2000
[ 6451.353283][   T73]      inet6_addr_add+0x30e/0xa40
[ 6451.353283][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6451.353283][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6451.353283][   T73]      netlink_rcv_skb+0x130/0x360
[ 6451.353283][   T73]      netlink_unicast+0x449/0x710
[ 6451.353283][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6451.353283][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6451.353283][   T73]      ___sys_sendmsg+0xee/0x170
[ 6451.353283][   T73]      __sys_sendmsg+0xcd/0x170
[ 6451.353283][   T73]      do_syscall_64+0xc6/0x1e0
[ 6451.353283][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6451.353283][   T73] 
[ 6451.355302][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6451.355302][   T73]      netdev_get_by_index+0x5e/0x80
[ 6451.355302][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6451.355302][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6451.355302][   T73]      ip6_route_add+0x1c/0x140
[ 6451.355302][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6451.355302][   T73]      addrconf_add_dev+0xe2/0x170
[ 6451.355302][   T73]      inet6_addr_add+0x12f/0xa40
[ 6451.355302][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6451.355302][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6451.355302][   T73]      netlink_rcv_skb+0x130/0x360
[ 6451.355302][   T73]      netlink_unicast+0x449/0x710
[ 6451.355302][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6451.355302][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6451.355302][   T73]      ___sys_sendmsg+0xee/0x170
[ 6451.355302][   T73]      __sys_sendmsg+0xcd/0x170
[ 6451.355302][   T73]      do_syscall_64+0xc6/0x1e0
[ 6451.355302][   T73] 
[ 6451.357264][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6451.357264][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6451.357264][   T73]      ipv6_find_idev+0x102/0x170
[ 6451.357264][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6451.357264][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6451.357264][   T73]      netlink_rcv_skb+0x130/0x360
[ 6451.357264][   T73]      netlink_unicast+0x449/0x710
[ 6451.357264][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6451.357264][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6451.357264][   T73]      ___sys_sendmsg+0xee/0x170
[ 6451.357264][   T73]      __sys_sendmsg+0xcd/0x170
[ 6451.357264][   T73]      do_syscall_64+0xc6/0x1e0
[ 6451.357264][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6451.357264][   T73] 
[ 6451.358797][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6451.358797][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6451.358797][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6451.358797][   T73]      ipv6_find_idev+0x102/0x170
[ 6451.358797][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6451.358797][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6451.358797][   T73]      netlink_rcv_skb+0x130/0x360
[ 6451.358797][   T73]      netlink_unicast+0x449/0x710
[ 6451.358797][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6451.358797][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6451.358797][   T73]      ___sys_sendmsg+0xee/0x170
[ 6451.358797][   T73]      __sys_sendmsg+0xcd/0x170
[ 6451.358797][   T73]      do_syscall_64+0xc6/0x1e0
[ 6451.358797][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6451.358797][   T73] 
[ 6451.360478][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6451.360756][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6451.360756][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6451.360756][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6451.360756][   T73]      fib6_nh_init+0xa22/0x1580
[ 6451.360756][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6451.360756][   T73]      ip6_route_add+0x1c/0x140
[ 6451.360756][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6451.360756][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6451.360756][   T73]      netlink_rcv_skb+0x130/0x360
[ 6451.360756][   T73]      netlink_unicast+0x449/0x710
[ 6451.360756][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6451.360756][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6451.360756][   T73]      ___sys_sendmsg+0xee/0x170
[ 6451.360756][   T73]      __sys_sendmsg+0xcd/0x170
[ 6451.360756][   T73]      do_syscall_64+0xc6/0x1e0
[ 6451.360756][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6451.360756][   T73] 
[ 6451.362814][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6451.362814][   T73]      dst_init+0x84/0x4a0
[ 6451.362814][   T73]      dst_alloc+0x97/0x150
[ 6451.362814][   T73]      ip6_dst_alloc+0x23/0x90
[ 6451.362814][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6451.362814][   T73]      ip6_pol_route+0x56f/0x840
[ 6451.362814][   T73]      fib6_rule_lookup+0x456/0x630
[ 6451.362814][   T73]      ip6_route_input+0x59c/0xa50
[ 6451.362814][   T73]      ipv6_rcv+0x397/0x810
[ 6451.362814][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6451.362814][   T73]      process_backlog+0x101/0x620
[ 6451.362814][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6451.362814][   T73]      net_rx_action+0x495/0xbe0
[ 6451.362814][   T73]      __do_softirq+0x1b5/0x7f6
[ 6451.362814][   T73] 
[ 6451.364708][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6451.364708][   T73]      netdev_get_by_index+0x5e/0x80
[ 6451.364708][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6451.364708][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6451.364708][   T73]      ip6_route_add+0x1c/0x140
[ 6451.364708][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6451.364708][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6451.364708][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6451.364708][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6451.364708][   T73]      netlink_rcv_skb+0x130/0x360
[ 6451.364708][   T73]      netlink_unicast+0x449/0x710
[ 6451.364708][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6451.364708][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6451.364708][   T73]      ___sys_sendmsg+0xee/0x170
[ 6451.364708][   T73]      __sys_sendmsg+0xcd/0x170
[ 6451.364708][   T73]      do_syscall_64+0xc6/0x1e0
[ 6451.364708][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6451.364708][   T73] 
[ 6451.366953][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6451.366953][   T73]      netdev_get_by_index+0x5e/0x80
[ 6451.366953][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6451.366953][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6451.366953][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6451.366953][   T73]      ipv6_add_addr+0x411/0x2000
[ 6451.366953][   T73]      inet6_addr_add+0x30e/0xa40
[ 6451.366953][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6451.366953][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6451.366953][   T73]      netlink_rcv_skb+0x130/0x360
[ 6451.366953][   T73]      netlink_unicast+0x449/0x710
[ 6451.366953][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6451.366953][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6451.366953][   T73]      ___sys_sendmsg+0xee/0x170
[ 6451.366953][   T73]      __sys_sendmsg+0xcd/0x170
[ 6451.366953][   T73]      do_syscall_64+0xc6/0x1e0
[ 6451.366953][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6451.366953][   T73] 
[ 6451.369189][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6451.369189][   T73]      netdev_get_by_index+0x5e/0x80
[ 6451.369189][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6451.369189][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6451.369189][   T73]      ip6_route_add+0x1c/0x140
[ 6451.369189][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6451.369189][   T73]      addrconf_add_dev+0xe2/0x170
[ 6451.369189][   T73]      inet6_addr_add+0x12f/0xa40
[ 6451.369189][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6451.369189][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6451.369189][   T73]      netlink_rcv_skb+0x130/0x360
[ 6451.369189][   T73]      netlink_unicast+0x449/0x710
[ 6451.369189][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6451.369189][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6451.369189][   T73]      ___sys_sendmsg+0xee/0x170
[ 6451.369189][   T73]      __sys_sendmsg+0xcd/0x170
[ 6451.369189][   T73]      do_syscall_64+0xc6/0x1e0
[ 6451.369189][   T73] 
[ 6451.371298][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6451.371298][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6451.371298][   T73]      ipv6_find_idev+0x102/0x170
[ 6451.371298][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6451.371298][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6451.371298][   T73]      netlink_rcv_skb+0x130/0x360
[ 6451.371298][   T73]      netlink_unicast+0x449/0x710
[ 6451.371298][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6451.371298][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6451.371298][   T73]      ___sys_sendmsg+0xee/0x170
[ 6451.371298][   T73]      __sys_sendmsg+0xcd/0x170
[ 6451.371298][   T73]      do_syscall_64+0xc6/0x1e0
[ 6451.371298][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6451.371298][   T73] 
[ 6451.373099][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6451.373099][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6451.373099][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6451.373099][   T73]      ipv6_find_idev+0x102/0x170
[ 6451.373099][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6451.373099][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6451.373099][   T73]      netlink_rcv_skb+0x130/0x360
[ 6451.373099][   T73]      netlink_unicast+0x449/0x710
[ 6451.373099][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6451.373099][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6451.373099][   T73]      ___sys_sendmsg+0xee/0x170
[ 6451.373099][   T73]      __sys_sendmsg+0xcd/0x170
[ 6451.373099][   T73]      do_syscall_64+0xc6/0x1e0
[ 6451.373099][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6451.373099][   T73] 
[ 6451.375041][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6451.375305][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6451.375305][   T73]      netdev_get_by_index+0x5e/0x80
[ 6451.375305][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6451.375305][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6451.375305][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6451.375305][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6451.375305][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6451.375305][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6451.375305][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6451.375305][   T73]      addrconf_dad_begin+0x310/0x670
[ 6451.375305][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6451.375305][   T73]      process_one_work+0x84d/0x18a0
[ 6451.375305][   T73]      worker_thread+0x587/0xd30
[ 6451.375305][   T73]      kthread+0x28a/0x350
[ 6451.375305][   T73]      ret_from_fork+0x31/0x70
[ 6451.375305][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6451.375305][   T73] 
[ 6451.377453][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6451.377453][   T73]      netdev_get_by_index+0x5e/0x80
[ 6451.377453][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6451.377453][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6451.377453][   T73]      ip6_route_add+0x1c/0x140
[ 6451.377453][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6451.377453][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6451.377453][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6451.377453][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6451.377453][   T73]      netlink_rcv_skb+0x130/0x360
[ 6451.377453][   T73]      netlink_unicast+0x449/0x710
[ 6451.377453][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6451.377453][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6451.377453][   T73]      ___sys_sendmsg+0xee/0x170
[ 6451.377453][   T73]      __sys_sendmsg+0xcd/0x170
[ 6451.377453][   T73]      do_syscall_64+0xc6/0x1e0
[ 6451.377453][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6451.377453][   T73] 
[ 6451.379681][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6451.379681][   T73]      netdev_get_by_index+0x5e/0x80
[ 6451.379681][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6451.379681][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6451.379681][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6451.379681][   T73]      ipv6_add_addr+0x411/0x2000
[ 6451.379681][   T73]      inet6_addr_add+0x30e/0xa40
[ 6451.379681][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6451.379681][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6451.379681][   T73]      netlink_rcv_skb+0x130/0x360
[ 6451.379681][   T73]      netlink_unicast+0x449/0x710
[ 6451.379681][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6451.379681][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6451.379681][   T73]      ___sys_sendmsg+0xee/0x170
[ 6451.379681][   T73]      __sys_sendmsg+0xcd/0x170
[ 6451.379681][   T73]      do_syscall_64+0xc6/0x1e0
[ 6451.379681][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6451.379681][   T73] 
[ 6451.381852][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6451.381852][   T73]      netdev_get_by_index+0x5e/0x80
[ 6451.381852][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6451.381852][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6451.381852][   T73]      ip6_route_add+0x1c/0x140
[ 6451.381852][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6451.381852][   T73]      addrconf_add_dev+0xe2/0x170
[ 6451.381852][   T73]      inet6_addr_add+0x12f/0xa40
[ 6451.381852][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6451.381852][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6451.381852][   T73]      netlink_rcv_skb+0x130/0x360
[ 6451.381852][   T73]      netlink_unicast+0x449/0x710
[ 6451.381852][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6451.381852][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6451.381852][   T73]      ___sys_sendmsg+0xee/0x170
[ 6451.381852][   T73]      __sys_sendmsg+0xcd/0x170
[ 6451.381852][   T73]      do_syscall_64+0xc6/0x1e0
[ 6451.381852][   T73] 
[ 6451.384107][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6451.384107][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6451.384107][   T73]      ipv6_find_idev+0x102/0x170
[ 6451.384107][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6451.384107][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6451.384107][   T73]      netlink_rcv_skb+0x130/0x360
[ 6451.384107][   T73]      netlink_unicast+0x449/0x710
[ 6451.384107][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6451.384107][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6451.384107][   T73]      ___sys_sendmsg+0xee/0x170
[ 6451.384107][   T73]      __sys_sendmsg+0xcd/0x170
[ 6451.384107][   T73]      do_syscall_64+0xc6/0x1e0
[ 6451.384107][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6451.384107][   T73] 
[ 6451.385823][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6451.385823][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6451.385823][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6451.385823][   T73]      ipv6_find_idev+0x102/0x170
[ 6451.385823][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6451.385823][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6451.385823][   T73]      netlink_rcv_skb+0x130/0x360
[ 6451.385823][   T73]      netlink_unicast+0x449/0x710
[ 6451.385823][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6451.385823][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6451.385823][   T73]      ___sys_sendmsg+0xee/0x170
[ 6451.385823][   T73]      __sys_sendmsg+0xcd/0x170
[ 6451.385823][   T73]      do_syscall_64+0xc6/0x1e0
[ 6451.385823][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6451.385823][   T73] 
[ 6461.623756][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6461.624201][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6461.624201][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6461.624201][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6461.624201][   T73]      fib6_nh_init+0xa22/0x1580
[ 6461.624201][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6461.624201][   T73]      ip6_route_add+0x1c/0x140
[ 6461.624201][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6461.624201][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6461.624201][   T73]      netlink_rcv_skb+0x130/0x360
[ 6461.624201][   T73]      netlink_unicast+0x449/0x710
[ 6461.624201][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6461.624201][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6461.624201][   T73]      ___sys_sendmsg+0xee/0x170
[ 6461.624201][   T73]      __sys_sendmsg+0xcd/0x170
[ 6461.624201][   T73]      do_syscall_64+0xc6/0x1e0
[ 6461.624201][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6461.624201][   T73] 
[ 6461.626234][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6461.626234][   T73]      dst_init+0x84/0x4a0
[ 6461.626234][   T73]      dst_alloc+0x97/0x150
[ 6461.626234][   T73]      ip6_dst_alloc+0x23/0x90
[ 6461.626234][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6461.626234][   T73]      ip6_pol_route+0x56f/0x840
[ 6461.626234][   T73]      fib6_rule_lookup+0x456/0x630
[ 6461.626234][   T73]      ip6_route_input+0x59c/0xa50
[ 6461.626234][   T73]      ipv6_rcv+0x397/0x810
[ 6461.626234][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6461.626234][   T73]      process_backlog+0x101/0x620
[ 6461.626234][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6461.626234][   T73]      net_rx_action+0x495/0xbe0
[ 6461.626234][   T73]      __do_softirq+0x1b5/0x7f6
[ 6461.626234][   T73] 
[ 6461.627874][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6461.627874][   T73]      netdev_get_by_index+0x5e/0x80
[ 6461.627874][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6461.627874][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6461.627874][   T73]      ip6_route_add+0x1c/0x140
[ 6461.627874][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6461.627874][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6461.627874][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6461.627874][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6461.627874][   T73]      netlink_rcv_skb+0x130/0x360
[ 6461.627874][   T73]      netlink_unicast+0x449/0x710
[ 6461.627874][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6461.627874][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6461.627874][   T73]      ___sys_sendmsg+0xee/0x170
[ 6461.627874][   T73]      __sys_sendmsg+0xcd/0x170
[ 6461.627874][   T73]      do_syscall_64+0xc6/0x1e0
[ 6461.627874][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6461.627874][   T73] 
[ 6461.629862][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6461.629862][   T73]      netdev_get_by_index+0x5e/0x80
[ 6461.629862][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6461.629862][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6461.629862][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6461.629862][   T73]      ipv6_add_addr+0x411/0x2000
[ 6461.629862][   T73]      inet6_addr_add+0x30e/0xa40
[ 6461.629862][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6461.629862][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6461.629862][   T73]      netlink_rcv_skb+0x130/0x360
[ 6461.629862][   T73]      netlink_unicast+0x449/0x710
[ 6461.629862][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6461.629862][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6461.629862][   T73]      ___sys_sendmsg+0xee/0x170
[ 6461.629862][   T73]      __sys_sendmsg+0xcd/0x170
[ 6461.629862][   T73]      do_syscall_64+0xc6/0x1e0
[ 6461.629862][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6461.629862][   T73] 
[ 6461.631860][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6461.631860][   T73]      netdev_get_by_index+0x5e/0x80
[ 6461.631860][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6461.631860][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6461.631860][   T73]      ip6_route_add+0x1c/0x140
[ 6461.631860][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6461.631860][   T73]      addrconf_add_dev+0xe2/0x170
[ 6461.631860][   T73]      inet6_addr_add+0x12f/0xa40
[ 6461.631860][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6461.631860][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6461.631860][   T73]      netlink_rcv_skb+0x130/0x360
[ 6461.631860][   T73]      netlink_unicast+0x449/0x710
[ 6461.631860][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6461.631860][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6461.631860][   T73]      ___sys_sendmsg+0xee/0x170
[ 6461.631860][   T73]      __sys_sendmsg+0xcd/0x170
[ 6461.631860][   T73]      do_syscall_64+0xc6/0x1e0
[ 6461.631860][   T73] 
[ 6461.633848][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6461.633848][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6461.633848][   T73]      ipv6_find_idev+0x102/0x170
[ 6461.633848][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6461.633848][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6461.633848][   T73]      netlink_rcv_skb+0x130/0x360
[ 6461.633848][   T73]      netlink_unicast+0x449/0x710
[ 6461.633848][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6461.633848][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6461.633848][   T73]      ___sys_sendmsg+0xee/0x170
[ 6461.633848][   T73]      __sys_sendmsg+0xcd/0x170
[ 6461.633848][   T73]      do_syscall_64+0xc6/0x1e0
[ 6461.633848][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6461.633848][   T73] 
[ 6461.635397][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6461.635397][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6461.635397][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6461.635397][   T73]      ipv6_find_idev+0x102/0x170
[ 6461.635397][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6461.635397][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6461.635397][   T73]      netlink_rcv_skb+0x130/0x360
[ 6461.635397][   T73]      netlink_unicast+0x449/0x710
[ 6461.635397][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6461.635397][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6461.635397][   T73]      ___sys_sendmsg+0xee/0x170
[ 6461.635397][   T73]      __sys_sendmsg+0xcd/0x170
[ 6461.635397][   T73]      do_syscall_64+0xc6/0x1e0
[ 6461.635397][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6461.635397][   T73] 
[ 6461.637097][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6461.637375][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6461.637375][   T73]      netdev_get_by_index+0x5e/0x80
[ 6461.637375][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6461.637375][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6461.637375][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6461.637375][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6461.637375][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6461.637375][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6461.637375][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6461.637375][   T73]      addrconf_dad_begin+0x310/0x670
[ 6461.637375][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6461.637375][   T73]      process_one_work+0x84d/0x18a0
[ 6461.637375][   T73]      worker_thread+0x587/0xd30
[ 6461.637375][   T73]      kthread+0x28a/0x350
[ 6461.637375][   T73]      ret_from_fork+0x31/0x70
[ 6461.637375][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6461.637375][   T73] 
[ 6461.639302][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6461.639302][   T73]      netdev_get_by_index+0x5e/0x80
[ 6461.639302][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6461.639302][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6461.639302][   T73]      ip6_route_add+0x1c/0x140
[ 6461.639302][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6461.639302][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6461.639302][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6461.639302][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6461.639302][   T73]      netlink_rcv_skb+0x130/0x360
[ 6461.639302][   T73]      netlink_unicast+0x449/0x710
[ 6461.639302][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6461.639302][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6461.639302][   T73]      ___sys_sendmsg+0xee/0x170
[ 6461.639302][   T73]      __sys_sendmsg+0xcd/0x170
[ 6461.639302][   T73]      do_syscall_64+0xc6/0x1e0
[ 6461.639302][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6461.639302][   T73] 
[ 6461.641304][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6461.641304][   T73]      netdev_get_by_index+0x5e/0x80
[ 6461.641304][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6461.641304][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6461.641304][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6461.641304][   T73]      ipv6_add_addr+0x411/0x2000
[ 6461.641304][   T73]      inet6_addr_add+0x30e/0xa40
[ 6461.641304][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6461.641304][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6461.641304][   T73]      netlink_rcv_skb+0x130/0x360
[ 6461.641304][   T73]      netlink_unicast+0x449/0x710
[ 6461.641304][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6461.641304][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6461.641304][   T73]      ___sys_sendmsg+0xee/0x170
[ 6461.641304][   T73]      __sys_sendmsg+0xcd/0x170
[ 6461.641304][   T73]      do_syscall_64+0xc6/0x1e0
[ 6461.641304][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6461.641304][   T73] 
[ 6461.643313][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6461.643313][   T73]      netdev_get_by_index+0x5e/0x80
[ 6461.643313][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6461.643313][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6461.643313][   T73]      ip6_route_add+0x1c/0x140
[ 6461.643313][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6461.643313][   T73]      addrconf_add_dev+0xe2/0x170
[ 6461.643313][   T73]      inet6_addr_add+0x12f/0xa40
[ 6461.643313][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6461.643313][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6461.643313][   T73]      netlink_rcv_skb+0x130/0x360
[ 6461.643313][   T73]      netlink_unicast+0x449/0x710
[ 6461.643313][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6461.643313][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6461.643313][   T73]      ___sys_sendmsg+0xee/0x170
[ 6461.643313][   T73]      __sys_sendmsg+0xcd/0x170
[ 6461.643313][   T73]      do_syscall_64+0xc6/0x1e0
[ 6461.643313][   T73] 
[ 6461.645289][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6461.645289][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6461.645289][   T73]      ipv6_find_idev+0x102/0x170
[ 6461.645289][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6461.645289][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6461.645289][   T73]      netlink_rcv_skb+0x130/0x360
[ 6461.645289][   T73]      netlink_unicast+0x449/0x710
[ 6461.645289][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6461.645289][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6461.645289][   T73]      ___sys_sendmsg+0xee/0x170
[ 6461.645289][   T73]      __sys_sendmsg+0xcd/0x170
[ 6461.645289][   T73]      do_syscall_64+0xc6/0x1e0
[ 6461.645289][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6461.645289][   T73] 
[ 6461.646828][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6461.646828][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6461.646828][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6461.646828][   T73]      ipv6_find_idev+0x102/0x170
[ 6461.646828][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6461.646828][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6461.646828][   T73]      netlink_rcv_skb+0x130/0x360
[ 6461.646828][   T73]      netlink_unicast+0x449/0x710
[ 6461.646828][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6461.646828][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6461.646828][   T73]      ___sys_sendmsg+0xee/0x170
[ 6461.646828][   T73]      __sys_sendmsg+0xcd/0x170
[ 6461.646828][   T73]      do_syscall_64+0xc6/0x1e0
[ 6461.646828][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6461.646828][   T73] 
[ 6461.648504][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6461.648785][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6461.648785][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6461.648785][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6461.648785][   T73]      fib6_nh_init+0xa22/0x1580
[ 6461.648785][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6461.648785][   T73]      ip6_route_add+0x1c/0x140
[ 6461.648785][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6461.648785][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6461.648785][   T73]      netlink_rcv_skb+0x130/0x360
[ 6461.648785][   T73]      netlink_unicast+0x449/0x710
[ 6461.648785][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6461.648785][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6461.648785][   T73]      ___sys_sendmsg+0xee/0x170
[ 6461.648785][   T73]      __sys_sendmsg+0xcd/0x170
[ 6461.648785][   T73]      do_syscall_64+0xc6/0x1e0
[ 6461.648785][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6461.648785][   T73] 
[ 6461.650841][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6461.650841][   T73]      dst_init+0x84/0x4a0
[ 6461.650841][   T73]      dst_alloc+0x97/0x150
[ 6461.650841][   T73]      ip6_dst_alloc+0x23/0x90
[ 6461.650841][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6461.650841][   T73]      ip6_pol_route+0x56f/0x840
[ 6461.650841][   T73]      fib6_rule_lookup+0x456/0x630
[ 6461.650841][   T73]      ip6_route_input+0x59c/0xa50
[ 6461.650841][   T73]      ipv6_rcv+0x397/0x810
[ 6461.650841][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6461.650841][   T73]      process_backlog+0x101/0x620
[ 6461.650841][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6461.650841][   T73]      net_rx_action+0x495/0xbe0
[ 6461.650841][   T73]      __do_softirq+0x1b5/0x7f6
[ 6461.650841][   T73] 
[ 6461.652649][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6461.652649][   T73]      netdev_get_by_index+0x5e/0x80
[ 6461.652649][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6461.652649][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6461.652649][   T73]      ip6_route_add+0x1c/0x140
[ 6461.652649][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6461.652649][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6461.652649][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6461.652649][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6461.652649][   T73]      netlink_rcv_skb+0x130/0x360
[ 6461.652649][   T73]      netlink_unicast+0x449/0x710
[ 6461.652649][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6461.652649][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6461.652649][   T73]      ___sys_sendmsg+0xee/0x170
[ 6461.652649][   T73]      __sys_sendmsg+0xcd/0x170
[ 6461.652649][   T73]      do_syscall_64+0xc6/0x1e0
[ 6461.652649][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6461.652649][   T73] 
[ 6461.654886][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6461.654886][   T73]      netdev_get_by_index+0x5e/0x80
[ 6461.654886][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6461.654886][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6461.654886][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6461.654886][   T73]      ipv6_add_addr+0x411/0x2000
[ 6461.654886][   T73]      inet6_addr_add+0x30e/0xa40
[ 6461.654886][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6461.654886][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6461.654886][   T73]      netlink_rcv_skb+0x130/0x360
[ 6461.654886][   T73]      netlink_unicast+0x449/0x710
[ 6461.654886][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6461.654886][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6461.654886][   T73]      ___sys_sendmsg+0xee/0x170
[ 6461.654886][   T73]      __sys_sendmsg+0xcd/0x170
[ 6461.654886][   T73]      do_syscall_64+0xc6/0x1e0
[ 6461.654886][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6461.654886][   T73] 
[ 6461.657177][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6461.657177][   T73]      netdev_get_by_index+0x5e/0x80
[ 6461.657177][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6461.657177][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6461.657177][   T73]      ip6_route_add+0x1c/0x140
[ 6461.657177][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6461.657177][   T73]      addrconf_add_dev+0xe2/0x170
[ 6461.657177][   T73]      inet6_addr_add+0x12f/0xa40
[ 6461.657177][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6461.657177][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6461.657177][   T73]      netlink_rcv_skb+0x130/0x360
[ 6461.657177][   T73]      netlink_unicast+0x449/0x710
[ 6461.657177][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6461.657177][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6461.657177][   T73]      ___sys_sendmsg+0xee/0x170
[ 6461.657177][   T73]      __sys_sendmsg+0xcd/0x170
[ 6461.657177][   T73]      do_syscall_64+0xc6/0x1e0
[ 6461.657177][   T73] 
[ 6461.659253][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6461.659253][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6461.659253][   T73]      ipv6_find_idev+0x102/0x170
[ 6461.659253][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6461.659253][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6461.659253][   T73]      netlink_rcv_skb+0x130/0x360
[ 6461.659253][   T73]      netlink_unicast+0x449/0x710
[ 6461.659253][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6461.659253][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6461.659253][   T73]      ___sys_sendmsg+0xee/0x170
[ 6461.659253][   T73]      __sys_sendmsg+0xcd/0x170
[ 6461.659253][   T73]      do_syscall_64+0xc6/0x1e0
[ 6461.659253][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6461.659253][   T73] 
[ 6461.660958][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6461.660958][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6461.660958][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6461.660958][   T73]      ipv6_find_idev+0x102/0x170
[ 6461.660958][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6461.660958][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6461.660958][   T73]      netlink_rcv_skb+0x130/0x360
[ 6461.660958][   T73]      netlink_unicast+0x449/0x710
[ 6461.660958][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6461.660958][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6461.660958][   T73]      ___sys_sendmsg+0xee/0x170
[ 6461.660958][   T73]      __sys_sendmsg+0xcd/0x170
[ 6461.660958][   T73]      do_syscall_64+0xc6/0x1e0
[ 6461.660958][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6461.660958][   T73] 
[ 6461.662879][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6461.663148][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6461.663148][   T73]      netdev_get_by_index+0x5e/0x80
[ 6461.663148][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6461.663148][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6461.663148][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6461.663148][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6461.663148][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6461.663148][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6461.663148][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6461.663148][   T73]      addrconf_dad_begin+0x310/0x670
[ 6461.663148][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6461.663148][   T73]      process_one_work+0x84d/0x18a0
[ 6461.663148][   T73]      worker_thread+0x587/0xd30
[ 6461.663148][   T73]      kthread+0x28a/0x350
[ 6461.663148][   T73]      ret_from_fork+0x31/0x70
[ 6461.663148][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6461.663148][   T73] 
[ 6461.665295][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6461.665295][   T73]      netdev_get_by_index+0x5e/0x80
[ 6461.665295][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6461.665295][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6461.665295][   T73]      ip6_route_add+0x1c/0x140
[ 6461.665295][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6461.665295][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6461.665295][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6461.665295][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6461.665295][   T73]      netlink_rcv_skb+0x130/0x360
[ 6461.665295][   T73]      netlink_unicast+0x449/0x710
[ 6461.665295][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6461.665295][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6461.665295][   T73]      ___sys_sendmsg+0xee/0x170
[ 6461.665295][   T73]      __sys_sendmsg+0xcd/0x170
[ 6461.665295][   T73]      do_syscall_64+0xc6/0x1e0
[ 6461.665295][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6461.665295][   T73] 
[ 6461.667613][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6461.667613][   T73]      netdev_get_by_index+0x5e/0x80
[ 6461.667613][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6461.667613][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6461.667613][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6461.667613][   T73]      ipv6_add_addr+0x411/0x2000
[ 6461.667613][   T73]      inet6_addr_add+0x30e/0xa40
[ 6461.667613][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6461.667613][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6461.667613][   T73]      netlink_rcv_skb+0x130/0x360
[ 6461.667613][   T73]      netlink_unicast+0x449/0x710
[ 6461.667613][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6461.667613][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6461.667613][   T73]      ___sys_sendmsg+0xee/0x170
[ 6461.667613][   T73]      __sys_sendmsg+0xcd/0x170
[ 6461.667613][   T73]      do_syscall_64+0xc6/0x1e0
[ 6461.667613][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6461.667613][   T73] 
[ 6461.669778][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6461.669778][   T73]      netdev_get_by_index+0x5e/0x80
[ 6461.669778][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6461.669778][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6461.669778][   T73]      ip6_route_add+0x1c/0x140
[ 6461.669778][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6461.669778][   T73]      addrconf_add_dev+0xe2/0x170
[ 6461.669778][   T73]      inet6_addr_add+0x12f/0xa40
[ 6461.669778][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6461.669778][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6461.669778][   T73]      netlink_rcv_skb+0x130/0x360
[ 6461.669778][   T73]      netlink_unicast+0x449/0x710
[ 6461.669778][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6461.669778][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6461.669778][   T73]      ___sys_sendmsg+0xee/0x170
[ 6461.669778][   T73]      __sys_sendmsg+0xcd/0x170
[ 6461.669778][   T73]      do_syscall_64+0xc6/0x1e0
[ 6461.669778][   T73] 
[ 6461.671968][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6461.671968][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6461.671968][   T73]      ipv6_find_idev+0x102/0x170
[ 6461.671968][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6461.671968][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6461.671968][   T73]      netlink_rcv_skb+0x130/0x360
[ 6461.671968][   T73]      netlink_unicast+0x449/0x710
[ 6461.671968][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6461.671968][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6461.671968][   T73]      ___sys_sendmsg+0xee/0x170
[ 6461.671968][   T73]      __sys_sendmsg+0xcd/0x170
[ 6461.671968][   T73]      do_syscall_64+0xc6/0x1e0
[ 6461.671968][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6461.671968][   T73] 
[ 6461.673673][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6461.673673][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6461.673673][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6461.673673][   T73]      ipv6_find_idev+0x102/0x170
[ 6461.673673][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6461.673673][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6461.673673][   T73]      netlink_rcv_skb+0x130/0x360
[ 6461.673673][   T73]      netlink_unicast+0x449/0x710
[ 6461.673673][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6461.673673][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6461.673673][   T73]      ___sys_sendmsg+0xee/0x170
[ 6461.673673][   T73]      __sys_sendmsg+0xcd/0x170
[ 6461.673673][   T73]      do_syscall_64+0xc6/0x1e0
[ 6461.673673][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6461.673673][   T73] 
[ 6471.911751][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6471.912303][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6471.912303][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6471.912303][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6471.912303][   T73]      fib6_nh_init+0xa22/0x1580
[ 6471.912303][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6471.912303][   T73]      ip6_route_add+0x1c/0x140
[ 6471.912303][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6471.912303][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6471.912303][   T73]      netlink_rcv_skb+0x130/0x360
[ 6471.912303][   T73]      netlink_unicast+0x449/0x710
[ 6471.912303][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6471.912303][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6471.912303][   T73]      ___sys_sendmsg+0xee/0x170
[ 6471.912303][   T73]      __sys_sendmsg+0xcd/0x170
[ 6471.912303][   T73]      do_syscall_64+0xc6/0x1e0
[ 6471.912303][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6471.912303][   T73] 
[ 6471.914189][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6471.914189][   T73]      dst_init+0x84/0x4a0
[ 6471.914189][   T73]      dst_alloc+0x97/0x150
[ 6471.914189][   T73]      ip6_dst_alloc+0x23/0x90
[ 6471.914189][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6471.914189][   T73]      ip6_pol_route+0x56f/0x840
[ 6471.914189][   T73]      fib6_rule_lookup+0x456/0x630
[ 6471.914189][   T73]      ip6_route_input+0x59c/0xa50
[ 6471.914189][   T73]      ipv6_rcv+0x397/0x810
[ 6471.914189][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6471.914189][   T73]      process_backlog+0x101/0x620
[ 6471.914189][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6471.914189][   T73]      net_rx_action+0x495/0xbe0
[ 6471.914189][   T73]      __do_softirq+0x1b5/0x7f6
[ 6471.914189][   T73] 
[ 6471.915829][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6471.915829][   T73]      netdev_get_by_index+0x5e/0x80
[ 6471.915829][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6471.915829][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6471.915829][   T73]      ip6_route_add+0x1c/0x140
[ 6471.915829][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6471.915829][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6471.915829][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6471.915829][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6471.915829][   T73]      netlink_rcv_skb+0x130/0x360
[ 6471.915829][   T73]      netlink_unicast+0x449/0x710
[ 6471.915829][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6471.915829][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6471.915829][   T73]      ___sys_sendmsg+0xee/0x170
[ 6471.915829][   T73]      __sys_sendmsg+0xcd/0x170
[ 6471.915829][   T73]      do_syscall_64+0xc6/0x1e0
[ 6471.915829][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6471.915829][   T73] 
[ 6471.917811][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6471.917811][   T73]      netdev_get_by_index+0x5e/0x80
[ 6471.917811][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6471.917811][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6471.917811][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6471.917811][   T73]      ipv6_add_addr+0x411/0x2000
[ 6471.917811][   T73]      inet6_addr_add+0x30e/0xa40
[ 6471.917811][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6471.917811][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6471.917811][   T73]      netlink_rcv_skb+0x130/0x360
[ 6471.917811][   T73]      netlink_unicast+0x449/0x710
[ 6471.917811][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6471.917811][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6471.917811][   T73]      ___sys_sendmsg+0xee/0x170
[ 6471.917811][   T73]      __sys_sendmsg+0xcd/0x170
[ 6471.917811][   T73]      do_syscall_64+0xc6/0x1e0
[ 6471.917811][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6471.917811][   T73] 
[ 6471.919810][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6471.919810][   T73]      netdev_get_by_index+0x5e/0x80
[ 6471.919810][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6471.919810][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6471.919810][   T73]      ip6_route_add+0x1c/0x140
[ 6471.919810][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6471.919810][   T73]      addrconf_add_dev+0xe2/0x170
[ 6471.919810][   T73]      inet6_addr_add+0x12f/0xa40
[ 6471.919810][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6471.919810][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6471.919810][   T73]      netlink_rcv_skb+0x130/0x360
[ 6471.919810][   T73]      netlink_unicast+0x449/0x710
[ 6471.919810][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6471.919810][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6471.919810][   T73]      ___sys_sendmsg+0xee/0x170
[ 6471.919810][   T73]      __sys_sendmsg+0xcd/0x170
[ 6471.919810][   T73]      do_syscall_64+0xc6/0x1e0
[ 6471.919810][   T73] 
[ 6471.921772][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6471.921772][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6471.921772][   T73]      ipv6_find_idev+0x102/0x170
[ 6471.921772][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6471.921772][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6471.921772][   T73]      netlink_rcv_skb+0x130/0x360
[ 6471.921772][   T73]      netlink_unicast+0x449/0x710
[ 6471.921772][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6471.921772][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6471.921772][   T73]      ___sys_sendmsg+0xee/0x170
[ 6471.921772][   T73]      __sys_sendmsg+0xcd/0x170
[ 6471.921772][   T73]      do_syscall_64+0xc6/0x1e0
[ 6471.921772][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6471.921772][   T73] 
[ 6471.923303][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6471.923303][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6471.923303][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6471.923303][   T73]      ipv6_find_idev+0x102/0x170
[ 6471.923303][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6471.923303][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6471.923303][   T73]      netlink_rcv_skb+0x130/0x360
[ 6471.923303][   T73]      netlink_unicast+0x449/0x710
[ 6471.923303][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6471.923303][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6471.923303][   T73]      ___sys_sendmsg+0xee/0x170
[ 6471.923303][   T73]      __sys_sendmsg+0xcd/0x170
[ 6471.923303][   T73]      do_syscall_64+0xc6/0x1e0
[ 6471.923303][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6471.923303][   T73] 
[ 6471.924984][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6471.925258][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6471.925258][   T73]      netdev_get_by_index+0x5e/0x80
[ 6471.925258][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6471.925258][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6471.925258][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6471.925258][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6471.925258][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6471.925258][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6471.925258][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6471.925258][   T73]      addrconf_dad_begin+0x310/0x670
[ 6471.925258][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6471.925258][   T73]      process_one_work+0x84d/0x18a0
[ 6471.925258][   T73]      worker_thread+0x587/0xd30
[ 6471.925258][   T73]      kthread+0x28a/0x350
[ 6471.925258][   T73]      ret_from_fork+0x31/0x70
[ 6471.925258][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6471.925258][   T73] 
[ 6471.927162][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6471.927162][   T73]      netdev_get_by_index+0x5e/0x80
[ 6471.927162][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6471.927162][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6471.927162][   T73]      ip6_route_add+0x1c/0x140
[ 6471.927162][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6471.927162][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6471.927162][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6471.927162][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6471.927162][   T73]      netlink_rcv_skb+0x130/0x360
[ 6471.927162][   T73]      netlink_unicast+0x449/0x710
[ 6471.927162][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6471.927162][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6471.927162][   T73]      ___sys_sendmsg+0xee/0x170
[ 6471.927162][   T73]      __sys_sendmsg+0xcd/0x170
[ 6471.927162][   T73]      do_syscall_64+0xc6/0x1e0
[ 6471.927162][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6471.927162][   T73] 
[ 6471.929161][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6471.929161][   T73]      netdev_get_by_index+0x5e/0x80
[ 6471.929161][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6471.929161][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6471.929161][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6471.929161][   T73]      ipv6_add_addr+0x411/0x2000
[ 6471.929161][   T73]      inet6_addr_add+0x30e/0xa40
[ 6471.929161][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6471.929161][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6471.929161][   T73]      netlink_rcv_skb+0x130/0x360
[ 6471.929161][   T73]      netlink_unicast+0x449/0x710
[ 6471.929161][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6471.929161][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6471.929161][   T73]      ___sys_sendmsg+0xee/0x170
[ 6471.929161][   T73]      __sys_sendmsg+0xcd/0x170
[ 6471.929161][   T73]      do_syscall_64+0xc6/0x1e0
[ 6471.929161][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6471.929161][   T73] 
[ 6471.931150][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6471.931150][   T73]      netdev_get_by_index+0x5e/0x80
[ 6471.931150][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6471.931150][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6471.931150][   T73]      ip6_route_add+0x1c/0x140
[ 6471.931150][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6471.931150][   T73]      addrconf_add_dev+0xe2/0x170
[ 6471.931150][   T73]      inet6_addr_add+0x12f/0xa40
[ 6471.931150][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6471.931150][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6471.931150][   T73]      netlink_rcv_skb+0x130/0x360
[ 6471.931150][   T73]      netlink_unicast+0x449/0x710
[ 6471.931150][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6471.931150][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6471.931150][   T73]      ___sys_sendmsg+0xee/0x170
[ 6471.931150][   T73]      __sys_sendmsg+0xcd/0x170
[ 6471.931150][   T73]      do_syscall_64+0xc6/0x1e0
[ 6471.931150][   T73] 
[ 6471.933102][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6471.933102][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6471.933102][   T73]      ipv6_find_idev+0x102/0x170
[ 6471.933102][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6471.933102][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6471.933102][   T73]      netlink_rcv_skb+0x130/0x360
[ 6471.933102][   T73]      netlink_unicast+0x449/0x710
[ 6471.933102][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6471.933102][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6471.933102][   T73]      ___sys_sendmsg+0xee/0x170
[ 6471.933102][   T73]      __sys_sendmsg+0xcd/0x170
[ 6471.933102][   T73]      do_syscall_64+0xc6/0x1e0
[ 6471.933102][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6471.933102][   T73] 
[ 6471.934640][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6471.934640][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6471.934640][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6471.934640][   T73]      ipv6_find_idev+0x102/0x170
[ 6471.934640][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6471.934640][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6471.934640][   T73]      netlink_rcv_skb+0x130/0x360
[ 6471.934640][   T73]      netlink_unicast+0x449/0x710
[ 6471.934640][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6471.934640][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6471.934640][   T73]      ___sys_sendmsg+0xee/0x170
[ 6471.934640][   T73]      __sys_sendmsg+0xcd/0x170
[ 6471.934640][   T73]      do_syscall_64+0xc6/0x1e0
[ 6471.934640][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6471.934640][   T73] 
[ 6471.936317][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6471.936580][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6471.936580][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6471.936580][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6471.936580][   T73]      fib6_nh_init+0xa22/0x1580
[ 6471.936580][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6471.936580][   T73]      ip6_route_add+0x1c/0x140
[ 6471.936580][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6471.936580][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6471.936580][   T73]      netlink_rcv_skb+0x130/0x360
[ 6471.936580][   T73]      netlink_unicast+0x449/0x710
[ 6471.936580][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6471.936580][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6471.936580][   T73]      ___sys_sendmsg+0xee/0x170
[ 6471.936580][   T73]      __sys_sendmsg+0xcd/0x170
[ 6471.936580][   T73]      do_syscall_64+0xc6/0x1e0
[ 6471.936580][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6471.936580][   T73] 
[ 6471.938633][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6471.938633][   T73]      dst_init+0x84/0x4a0
[ 6471.938633][   T73]      dst_alloc+0x97/0x150
[ 6471.938633][   T73]      ip6_dst_alloc+0x23/0x90
[ 6471.938633][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6471.938633][   T73]      ip6_pol_route+0x56f/0x840
[ 6471.938633][   T73]      fib6_rule_lookup+0x456/0x630
[ 6471.938633][   T73]      ip6_route_input+0x59c/0xa50
[ 6471.938633][   T73]      ipv6_rcv+0x397/0x810
[ 6471.938633][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6471.938633][   T73]      process_backlog+0x101/0x620
[ 6471.938633][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6471.938633][   T73]      net_rx_action+0x495/0xbe0
[ 6471.938633][   T73]      __do_softirq+0x1b5/0x7f6
[ 6471.938633][   T73] 
[ 6471.940505][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6471.940505][   T73]      netdev_get_by_index+0x5e/0x80
[ 6471.940505][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6471.940505][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6471.940505][   T73]      ip6_route_add+0x1c/0x140
[ 6471.940505][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6471.940505][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6471.940505][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6471.940505][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6471.940505][   T73]      netlink_rcv_skb+0x130/0x360
[ 6471.940505][   T73]      netlink_unicast+0x449/0x710
[ 6471.940505][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6471.940505][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6471.940505][   T73]      ___sys_sendmsg+0xee/0x170
[ 6471.940505][   T73]      __sys_sendmsg+0xcd/0x170
[ 6471.940505][   T73]      do_syscall_64+0xc6/0x1e0
[ 6471.940505][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6471.940505][   T73] 
[ 6471.942735][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6471.942735][   T73]      netdev_get_by_index+0x5e/0x80
[ 6471.942735][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6471.942735][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6471.942735][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6471.942735][   T73]      ipv6_add_addr+0x411/0x2000
[ 6471.942735][   T73]      inet6_addr_add+0x30e/0xa40
[ 6471.942735][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6471.942735][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6471.942735][   T73]      netlink_rcv_skb+0x130/0x360
[ 6471.942735][   T73]      netlink_unicast+0x449/0x710
[ 6471.942735][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6471.942735][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6471.942735][   T73]      ___sys_sendmsg+0xee/0x170
[ 6471.942735][   T73]      __sys_sendmsg+0xcd/0x170
[ 6471.942735][   T73]      do_syscall_64+0xc6/0x1e0
[ 6471.942735][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6471.942735][   T73] 
[ 6471.944971][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6471.944971][   T73]      netdev_get_by_index+0x5e/0x80
[ 6471.944971][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6471.944971][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6471.944971][   T73]      ip6_route_add+0x1c/0x140
[ 6471.944971][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6471.944971][   T73]      addrconf_add_dev+0xe2/0x170
[ 6471.944971][   T73]      inet6_addr_add+0x12f/0xa40
[ 6471.944971][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6471.944971][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6471.944971][   T73]      netlink_rcv_skb+0x130/0x360
[ 6471.944971][   T73]      netlink_unicast+0x449/0x710
[ 6471.944971][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6471.944971][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6471.944971][   T73]      ___sys_sendmsg+0xee/0x170
[ 6471.944971][   T73]      __sys_sendmsg+0xcd/0x170
[ 6471.944971][   T73]      do_syscall_64+0xc6/0x1e0
[ 6471.944971][   T73] 
[ 6471.947097][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6471.947097][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6471.947097][   T73]      ipv6_find_idev+0x102/0x170
[ 6471.947097][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6471.947097][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6471.947097][   T73]      netlink_rcv_skb+0x130/0x360
[ 6471.947097][   T73]      netlink_unicast+0x449/0x710
[ 6471.947097][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6471.947097][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6471.947097][   T73]      ___sys_sendmsg+0xee/0x170
[ 6471.947097][   T73]      __sys_sendmsg+0xcd/0x170
[ 6471.947097][   T73]      do_syscall_64+0xc6/0x1e0
[ 6471.947097][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6471.947097][   T73] 
[ 6471.948890][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6471.948890][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6471.948890][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6471.948890][   T73]      ipv6_find_idev+0x102/0x170
[ 6471.948890][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6471.948890][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6471.948890][   T73]      netlink_rcv_skb+0x130/0x360
[ 6471.948890][   T73]      netlink_unicast+0x449/0x710
[ 6471.948890][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6471.948890][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6471.948890][   T73]      ___sys_sendmsg+0xee/0x170
[ 6471.948890][   T73]      __sys_sendmsg+0xcd/0x170
[ 6471.948890][   T73]      do_syscall_64+0xc6/0x1e0
[ 6471.948890][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6471.948890][   T73] 
[ 6471.950824][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6471.951104][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6471.951104][   T73]      netdev_get_by_index+0x5e/0x80
[ 6471.951104][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6471.951104][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6471.951104][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6471.951104][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6471.951104][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6471.951104][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6471.951104][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6471.951104][   T73]      addrconf_dad_begin+0x310/0x670
[ 6471.951104][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6471.951104][   T73]      process_one_work+0x84d/0x18a0
[ 6471.951104][   T73]      worker_thread+0x587/0xd30
[ 6471.951104][   T73]      kthread+0x28a/0x350
[ 6471.951104][   T73]      ret_from_fork+0x31/0x70
[ 6471.951104][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6471.951104][   T73] 
[ 6471.953254][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6471.953254][   T73]      netdev_get_by_index+0x5e/0x80
[ 6471.953254][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6471.953254][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6471.953254][   T73]      ip6_route_add+0x1c/0x140
[ 6471.953254][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6471.953254][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6471.953254][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6471.953254][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6471.953254][   T73]      netlink_rcv_skb+0x130/0x360
[ 6471.953254][   T73]      netlink_unicast+0x449/0x710
[ 6471.953254][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6471.953254][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6471.953254][   T73]      ___sys_sendmsg+0xee/0x170
[ 6471.953254][   T73]      __sys_sendmsg+0xcd/0x170
[ 6471.953254][   T73]      do_syscall_64+0xc6/0x1e0
[ 6471.953254][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6471.953254][   T73] 
[ 6471.955518][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6471.955518][   T73]      netdev_get_by_index+0x5e/0x80
[ 6471.955518][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6471.955518][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6471.955518][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6471.955518][   T73]      ipv6_add_addr+0x411/0x2000
[ 6471.955518][   T73]      inet6_addr_add+0x30e/0xa40
[ 6471.955518][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6471.955518][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6471.955518][   T73]      netlink_rcv_skb+0x130/0x360
[ 6471.955518][   T73]      netlink_unicast+0x449/0x710
[ 6471.955518][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6471.955518][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6471.955518][   T73]      ___sys_sendmsg+0xee/0x170
[ 6471.955518][   T73]      __sys_sendmsg+0xcd/0x170
[ 6471.955518][   T73]      do_syscall_64+0xc6/0x1e0
[ 6471.955518][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6471.955518][   T73] 
[ 6471.957704][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6471.957704][   T73]      netdev_get_by_index+0x5e/0x80
[ 6471.957704][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6471.957704][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6471.957704][   T73]      ip6_route_add+0x1c/0x140
[ 6471.957704][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6471.957704][   T73]      addrconf_add_dev+0xe2/0x170
[ 6471.957704][   T73]      inet6_addr_add+0x12f/0xa40
[ 6471.957704][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6471.957704][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6471.957704][   T73]      netlink_rcv_skb+0x130/0x360
[ 6471.957704][   T73]      netlink_unicast+0x449/0x710
[ 6471.957704][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6471.957704][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6471.957704][   T73]      ___sys_sendmsg+0xee/0x170
[ 6471.957704][   T73]      __sys_sendmsg+0xcd/0x170
[ 6471.957704][   T73]      do_syscall_64+0xc6/0x1e0
[ 6471.957704][   T73] 
[ 6471.959965][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6471.959965][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6471.959965][   T73]      ipv6_find_idev+0x102/0x170
[ 6471.959965][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6471.959965][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6471.959965][   T73]      netlink_rcv_skb+0x130/0x360
[ 6471.959965][   T73]      netlink_unicast+0x449/0x710
[ 6471.959965][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6471.959965][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6471.959965][   T73]      ___sys_sendmsg+0xee/0x170
[ 6471.959965][   T73]      __sys_sendmsg+0xcd/0x170
[ 6471.959965][   T73]      do_syscall_64+0xc6/0x1e0
[ 6471.959965][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6471.959965][   T73] 
[ 6471.961686][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6471.961686][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6471.961686][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6471.961686][   T73]      ipv6_find_idev+0x102/0x170
[ 6471.961686][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6471.961686][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6471.961686][   T73]      netlink_rcv_skb+0x130/0x360
[ 6471.961686][   T73]      netlink_unicast+0x449/0x710
[ 6471.961686][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6471.961686][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6471.961686][   T73]      ___sys_sendmsg+0xee/0x170
[ 6471.961686][   T73]      __sys_sendmsg+0xcd/0x170
[ 6471.961686][   T73]      do_syscall_64+0xc6/0x1e0
[ 6471.961686][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6471.961686][   T73] 
[ 6482.095682][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6482.096181][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6482.096181][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6482.096181][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6482.096181][   T73]      fib6_nh_init+0xa22/0x1580
[ 6482.096181][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6482.096181][   T73]      ip6_route_add+0x1c/0x140
[ 6482.096181][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6482.096181][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6482.096181][   T73]      netlink_rcv_skb+0x130/0x360
[ 6482.096181][   T73]      netlink_unicast+0x449/0x710
[ 6482.096181][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6482.096181][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6482.096181][   T73]      ___sys_sendmsg+0xee/0x170
[ 6482.096181][   T73]      __sys_sendmsg+0xcd/0x170
[ 6482.096181][   T73]      do_syscall_64+0xc6/0x1e0
[ 6482.096181][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6482.096181][   T73] 
[ 6482.098592][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6482.098592][   T73]      dst_init+0x84/0x4a0
[ 6482.098592][   T73]      dst_alloc+0x97/0x150
[ 6482.098592][   T73]      ip6_dst_alloc+0x23/0x90
[ 6482.098592][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6482.098592][   T73]      ip6_pol_route+0x56f/0x840
[ 6482.098592][   T73]      fib6_rule_lookup+0x456/0x630
[ 6482.098592][   T73]      ip6_route_input+0x59c/0xa50
[ 6482.098592][   T73]      ipv6_rcv+0x397/0x810
[ 6482.098592][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6482.098592][   T73]      process_backlog+0x101/0x620
[ 6482.098592][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6482.098592][   T73]      net_rx_action+0x495/0xbe0
[ 6482.098592][   T73]      __do_softirq+0x1b5/0x7f6
[ 6482.098592][   T73] 
[ 6482.100251][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6482.100251][   T73]      netdev_get_by_index+0x5e/0x80
[ 6482.100251][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6482.100251][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6482.100251][   T73]      ip6_route_add+0x1c/0x140
[ 6482.100251][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6482.100251][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6482.100251][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6482.100251][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6482.100251][   T73]      netlink_rcv_skb+0x130/0x360
[ 6482.100251][   T73]      netlink_unicast+0x449/0x710
[ 6482.100251][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6482.100251][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6482.100251][   T73]      ___sys_sendmsg+0xee/0x170
[ 6482.100251][   T73]      __sys_sendmsg+0xcd/0x170
[ 6482.100251][   T73]      do_syscall_64+0xc6/0x1e0
[ 6482.100251][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6482.100251][   T73] 
[ 6482.102271][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6482.102271][   T73]      netdev_get_by_index+0x5e/0x80
[ 6482.102271][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6482.102271][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6482.102271][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6482.102271][   T73]      ipv6_add_addr+0x411/0x2000
[ 6482.102271][   T73]      inet6_addr_add+0x30e/0xa40
[ 6482.102271][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6482.102271][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6482.102271][   T73]      netlink_rcv_skb+0x130/0x360
[ 6482.102271][   T73]      netlink_unicast+0x449/0x710
[ 6482.102271][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6482.102271][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6482.102271][   T73]      ___sys_sendmsg+0xee/0x170
[ 6482.102271][   T73]      __sys_sendmsg+0xcd/0x170
[ 6482.102271][   T73]      do_syscall_64+0xc6/0x1e0
[ 6482.102271][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6482.102271][   T73] 
[ 6482.104280][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6482.104280][   T73]      netdev_get_by_index+0x5e/0x80
[ 6482.104280][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6482.104280][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6482.104280][   T73]      ip6_route_add+0x1c/0x140
[ 6482.104280][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6482.104280][   T73]      addrconf_add_dev+0xe2/0x170
[ 6482.104280][   T73]      inet6_addr_add+0x12f/0xa40
[ 6482.104280][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6482.104280][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6482.104280][   T73]      netlink_rcv_skb+0x130/0x360
[ 6482.104280][   T73]      netlink_unicast+0x449/0x710
[ 6482.104280][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6482.104280][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6482.104280][   T73]      ___sys_sendmsg+0xee/0x170
[ 6482.104280][   T73]      __sys_sendmsg+0xcd/0x170
[ 6482.104280][   T73]      do_syscall_64+0xc6/0x1e0
[ 6482.104280][   T73] 
[ 6482.106267][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6482.106267][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6482.106267][   T73]      ipv6_find_idev+0x102/0x170
[ 6482.106267][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6482.106267][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6482.106267][   T73]      netlink_rcv_skb+0x130/0x360
[ 6482.106267][   T73]      netlink_unicast+0x449/0x710
[ 6482.106267][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6482.106267][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6482.106267][   T73]      ___sys_sendmsg+0xee/0x170
[ 6482.106267][   T73]      __sys_sendmsg+0xcd/0x170
[ 6482.106267][   T73]      do_syscall_64+0xc6/0x1e0
[ 6482.106267][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6482.106267][   T73] 
[ 6482.107821][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6482.107821][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6482.107821][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6482.107821][   T73]      ipv6_find_idev+0x102/0x170
[ 6482.107821][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6482.107821][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6482.107821][   T73]      netlink_rcv_skb+0x130/0x360
[ 6482.107821][   T73]      netlink_unicast+0x449/0x710
[ 6482.107821][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6482.107821][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6482.107821][   T73]      ___sys_sendmsg+0xee/0x170
[ 6482.107821][   T73]      __sys_sendmsg+0xcd/0x170
[ 6482.107821][   T73]      do_syscall_64+0xc6/0x1e0
[ 6482.107821][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6482.107821][   T73] 
[ 6482.109517][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6482.109802][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6482.109802][   T73]      netdev_get_by_index+0x5e/0x80
[ 6482.109802][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6482.109802][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6482.109802][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6482.109802][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6482.109802][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6482.109802][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6482.109802][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6482.109802][   T73]      addrconf_dad_begin+0x310/0x670
[ 6482.109802][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6482.109802][   T73]      process_one_work+0x84d/0x18a0
[ 6482.109802][   T73]      worker_thread+0x587/0xd30
[ 6482.109802][   T73]      kthread+0x28a/0x350
[ 6482.109802][   T73]      ret_from_fork+0x31/0x70
[ 6482.109802][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6482.109802][   T73] 
[ 6482.111729][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6482.111729][   T73]      netdev_get_by_index+0x5e/0x80
[ 6482.111729][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6482.111729][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6482.111729][   T73]      ip6_route_add+0x1c/0x140
[ 6482.111729][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6482.111729][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6482.111729][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6482.111729][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6482.111729][   T73]      netlink_rcv_skb+0x130/0x360
[ 6482.111729][   T73]      netlink_unicast+0x449/0x710
[ 6482.111729][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6482.111729][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6482.111729][   T73]      ___sys_sendmsg+0xee/0x170
[ 6482.111729][   T73]      __sys_sendmsg+0xcd/0x170
[ 6482.111729][   T73]      do_syscall_64+0xc6/0x1e0
[ 6482.111729][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6482.111729][   T73] 
[ 6482.116607][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6482.116607][   T73]      netdev_get_by_index+0x5e/0x80
[ 6482.116607][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6482.116607][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6482.116607][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6482.116607][   T73]      ipv6_add_addr+0x411/0x2000
[ 6482.116607][   T73]      inet6_addr_add+0x30e/0xa40
[ 6482.116607][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6482.116607][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6482.116607][   T73]      netlink_rcv_skb+0x130/0x360
[ 6482.116607][   T73]      netlink_unicast+0x449/0x710
[ 6482.116607][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6482.116607][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6482.116607][   T73]      ___sys_sendmsg+0xee/0x170
[ 6482.116607][   T73]      __sys_sendmsg+0xcd/0x170
[ 6482.116607][   T73]      do_syscall_64+0xc6/0x1e0
[ 6482.116607][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6482.116607][   T73] 
[ 6482.118597][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6482.118597][   T73]      netdev_get_by_index+0x5e/0x80
[ 6482.118597][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6482.118597][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6482.118597][   T73]      ip6_route_add+0x1c/0x140
[ 6482.118597][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6482.118597][   T73]      addrconf_add_dev+0xe2/0x170
[ 6482.118597][   T73]      inet6_addr_add+0x12f/0xa40
[ 6482.118597][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6482.118597][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6482.118597][   T73]      netlink_rcv_skb+0x130/0x360
[ 6482.118597][   T73]      netlink_unicast+0x449/0x710
[ 6482.118597][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6482.118597][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6482.118597][   T73]      ___sys_sendmsg+0xee/0x170
[ 6482.118597][   T73]      __sys_sendmsg+0xcd/0x170
[ 6482.118597][   T73]      do_syscall_64+0xc6/0x1e0
[ 6482.118597][   T73] 
[ 6482.120552][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6482.120552][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6482.120552][   T73]      ipv6_find_idev+0x102/0x170
[ 6482.120552][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6482.120552][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6482.120552][   T73]      netlink_rcv_skb+0x130/0x360
[ 6482.120552][   T73]      netlink_unicast+0x449/0x710
[ 6482.120552][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6482.120552][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6482.120552][   T73]      ___sys_sendmsg+0xee/0x170
[ 6482.120552][   T73]      __sys_sendmsg+0xcd/0x170
[ 6482.120552][   T73]      do_syscall_64+0xc6/0x1e0
[ 6482.120552][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6482.120552][   T73] 
[ 6482.122086][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6482.122086][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6482.122086][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6482.122086][   T73]      ipv6_find_idev+0x102/0x170
[ 6482.122086][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6482.122086][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6482.122086][   T73]      netlink_rcv_skb+0x130/0x360
[ 6482.122086][   T73]      netlink_unicast+0x449/0x710
[ 6482.122086][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6482.122086][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6482.122086][   T73]      ___sys_sendmsg+0xee/0x170
[ 6482.122086][   T73]      __sys_sendmsg+0xcd/0x170
[ 6482.122086][   T73]      do_syscall_64+0xc6/0x1e0
[ 6482.122086][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6482.122086][   T73] 
[ 6482.123769][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6482.124036][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6482.124036][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6482.124036][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6482.124036][   T73]      fib6_nh_init+0xa22/0x1580
[ 6482.124036][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6482.124036][   T73]      ip6_route_add+0x1c/0x140
[ 6482.124036][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6482.124036][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6482.124036][   T73]      netlink_rcv_skb+0x130/0x360
[ 6482.124036][   T73]      netlink_unicast+0x449/0x710
[ 6482.124036][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6482.124036][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6482.124036][   T73]      ___sys_sendmsg+0xee/0x170
[ 6482.124036][   T73]      __sys_sendmsg+0xcd/0x170
[ 6482.124036][   T73]      do_syscall_64+0xc6/0x1e0
[ 6482.124036][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6482.124036][   T73] 
[ 6482.126122][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6482.126122][   T73]      dst_init+0x84/0x4a0
[ 6482.126122][   T73]      dst_alloc+0x97/0x150
[ 6482.126122][   T73]      ip6_dst_alloc+0x23/0x90
[ 6482.126122][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6482.126122][   T73]      ip6_pol_route+0x56f/0x840
[ 6482.126122][   T73]      fib6_rule_lookup+0x456/0x630
[ 6482.126122][   T73]      ip6_route_input+0x59c/0xa50
[ 6482.126122][   T73]      ipv6_rcv+0x397/0x810
[ 6482.126122][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6482.126122][   T73]      process_backlog+0x101/0x620
[ 6482.126122][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6482.126122][   T73]      net_rx_action+0x495/0xbe0
[ 6482.126122][   T73]      __do_softirq+0x1b5/0x7f6
[ 6482.126122][   T73] 
[ 6482.127938][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6482.127938][   T73]      netdev_get_by_index+0x5e/0x80
[ 6482.127938][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6482.127938][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6482.127938][   T73]      ip6_route_add+0x1c/0x140
[ 6482.127938][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6482.127938][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6482.127938][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6482.127938][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6482.127938][   T73]      netlink_rcv_skb+0x130/0x360
[ 6482.127938][   T73]      netlink_unicast+0x449/0x710
[ 6482.127938][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6482.127938][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6482.127938][   T73]      ___sys_sendmsg+0xee/0x170
[ 6482.127938][   T73]      __sys_sendmsg+0xcd/0x170
[ 6482.127938][   T73]      do_syscall_64+0xc6/0x1e0
[ 6482.127938][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6482.127938][   T73] 
[ 6482.130172][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6482.130172][   T73]      netdev_get_by_index+0x5e/0x80
[ 6482.130172][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6482.130172][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6482.130172][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6482.130172][   T73]      ipv6_add_addr+0x411/0x2000
[ 6482.130172][   T73]      inet6_addr_add+0x30e/0xa40
[ 6482.130172][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6482.130172][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6482.130172][   T73]      netlink_rcv_skb+0x130/0x360
[ 6482.130172][   T73]      netlink_unicast+0x449/0x710
[ 6482.130172][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6482.130172][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6482.130172][   T73]      ___sys_sendmsg+0xee/0x170
[ 6482.130172][   T73]      __sys_sendmsg+0xcd/0x170
[ 6482.130172][   T73]      do_syscall_64+0xc6/0x1e0
[ 6482.130172][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6482.130172][   T73] 
[ 6482.132470][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6482.132470][   T73]      netdev_get_by_index+0x5e/0x80
[ 6482.132470][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6482.132470][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6482.132470][   T73]      ip6_route_add+0x1c/0x140
[ 6482.132470][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6482.132470][   T73]      addrconf_add_dev+0xe2/0x170
[ 6482.132470][   T73]      inet6_addr_add+0x12f/0xa40
[ 6482.132470][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6482.132470][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6482.132470][   T73]      netlink_rcv_skb+0x130/0x360
[ 6482.132470][   T73]      netlink_unicast+0x449/0x710
[ 6482.132470][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6482.132470][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6482.132470][   T73]      ___sys_sendmsg+0xee/0x170
[ 6482.132470][   T73]      __sys_sendmsg+0xcd/0x170
[ 6482.132470][   T73]      do_syscall_64+0xc6/0x1e0
[ 6482.132470][   T73] 
[ 6482.134614][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6482.134614][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6482.134614][   T73]      ipv6_find_idev+0x102/0x170
[ 6482.134614][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6482.134614][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6482.134614][   T73]      netlink_rcv_skb+0x130/0x360
[ 6482.134614][   T73]      netlink_unicast+0x449/0x710
[ 6482.134614][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6482.134614][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6482.134614][   T73]      ___sys_sendmsg+0xee/0x170
[ 6482.134614][   T73]      __sys_sendmsg+0xcd/0x170
[ 6482.134614][   T73]      do_syscall_64+0xc6/0x1e0
[ 6482.134614][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6482.134614][   T73] 
[ 6482.136334][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6482.136334][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6482.136334][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6482.136334][   T73]      ipv6_find_idev+0x102/0x170
[ 6482.136334][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6482.136334][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6482.136334][   T73]      netlink_rcv_skb+0x130/0x360
[ 6482.136334][   T73]      netlink_unicast+0x449/0x710
[ 6482.136334][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6482.136334][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6482.136334][   T73]      ___sys_sendmsg+0xee/0x170
[ 6482.136334][   T73]      __sys_sendmsg+0xcd/0x170
[ 6482.136334][   T73]      do_syscall_64+0xc6/0x1e0
[ 6482.136334][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6482.136334][   T73] 
[ 6482.138254][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6482.138522][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6482.138522][   T73]      netdev_get_by_index+0x5e/0x80
[ 6482.138522][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6482.138522][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6482.138522][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6482.138522][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6482.138522][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6482.138522][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6482.138522][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6482.138522][   T73]      addrconf_dad_begin+0x310/0x670
[ 6482.138522][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6482.138522][   T73]      process_one_work+0x84d/0x18a0
[ 6482.138522][   T73]      worker_thread+0x587/0xd30
[ 6482.138522][   T73]      kthread+0x28a/0x350
[ 6482.138522][   T73]      ret_from_fork+0x31/0x70
[ 6482.138522][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6482.138522][   T73] 
[ 6482.140676][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6482.140676][   T73]      netdev_get_by_index+0x5e/0x80
[ 6482.140676][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6482.140676][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6482.140676][   T73]      ip6_route_add+0x1c/0x140
[ 6482.140676][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6482.140676][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6482.140676][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6482.140676][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6482.140676][   T73]      netlink_rcv_skb+0x130/0x360
[ 6482.140676][   T73]      netlink_unicast+0x449/0x710
[ 6482.140676][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6482.140676][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6482.140676][   T73]      ___sys_sendmsg+0xee/0x170
[ 6482.140676][   T73]      __sys_sendmsg+0xcd/0x170
[ 6482.140676][   T73]      do_syscall_64+0xc6/0x1e0
[ 6482.140676][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6482.140676][   T73] 
[ 6482.142964][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6482.142964][   T73]      netdev_get_by_index+0x5e/0x80
[ 6482.142964][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6482.142964][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6482.142964][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6482.142964][   T73]      ipv6_add_addr+0x411/0x2000
[ 6482.142964][   T73]      inet6_addr_add+0x30e/0xa40
[ 6482.142964][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6482.142964][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6482.142964][   T73]      netlink_rcv_skb+0x130/0x360
[ 6482.142964][   T73]      netlink_unicast+0x449/0x710
[ 6482.142964][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6482.142964][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6482.142964][   T73]      ___sys_sendmsg+0xee/0x170
[ 6482.142964][   T73]      __sys_sendmsg+0xcd/0x170
[ 6482.142964][   T73]      do_syscall_64+0xc6/0x1e0
[ 6482.142964][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6482.142964][   T73] 
[ 6482.145130][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6482.145130][   T73]      netdev_get_by_index+0x5e/0x80
[ 6482.145130][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6482.145130][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6482.145130][   T73]      ip6_route_add+0x1c/0x140
[ 6482.145130][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6482.145130][   T73]      addrconf_add_dev+0xe2/0x170
[ 6482.145130][   T73]      inet6_addr_add+0x12f/0xa40
[ 6482.145130][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6482.145130][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6482.145130][   T73]      netlink_rcv_skb+0x130/0x360
[ 6482.145130][   T73]      netlink_unicast+0x449/0x710
[ 6482.145130][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6482.145130][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6482.145130][   T73]      ___sys_sendmsg+0xee/0x170
[ 6482.145130][   T73]      __sys_sendmsg+0xcd/0x170
[ 6482.145130][   T73]      do_syscall_64+0xc6/0x1e0
[ 6482.145130][   T73] 
[ 6482.147313][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6482.147313][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6482.147313][   T73]      ipv6_find_idev+0x102/0x170
[ 6482.147313][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6482.147313][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6482.147313][   T73]      netlink_rcv_skb+0x130/0x360
[ 6482.147313][   T73]      netlink_unicast+0x449/0x710
[ 6482.147313][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6482.147313][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6482.147313][   T73]      ___sys_sendmsg+0xee/0x170
[ 6482.147313][   T73]      __sys_sendmsg+0xcd/0x170
[ 6482.147313][   T73]      do_syscall_64+0xc6/0x1e0
[ 6482.147313][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6482.147313][   T73] 
[ 6482.149018][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6482.149018][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6482.149018][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6482.149018][   T73]      ipv6_find_idev+0x102/0x170
[ 6482.149018][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6482.149018][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6482.149018][   T73]      netlink_rcv_skb+0x130/0x360
[ 6482.149018][   T73]      netlink_unicast+0x449/0x710
[ 6482.149018][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6482.149018][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6482.149018][   T73]      ___sys_sendmsg+0xee/0x170
[ 6482.149018][   T73]      __sys_sendmsg+0xcd/0x170
[ 6482.149018][   T73]      do_syscall_64+0xc6/0x1e0
[ 6482.149018][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6482.149018][   T73] 
[ 6492.239679][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6492.240165][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6492.240165][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6492.240165][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6492.240165][   T73]      fib6_nh_init+0xa22/0x1580
[ 6492.240165][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6492.240165][   T73]      ip6_route_add+0x1c/0x140
[ 6492.240165][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6492.240165][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6492.240165][   T73]      netlink_rcv_skb+0x130/0x360
[ 6492.240165][   T73]      netlink_unicast+0x449/0x710
[ 6492.240165][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6492.240165][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6492.240165][   T73]      ___sys_sendmsg+0xee/0x170
[ 6492.240165][   T73]      __sys_sendmsg+0xcd/0x170
[ 6492.240165][   T73]      do_syscall_64+0xc6/0x1e0
[ 6492.240165][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6492.240165][   T73] 
[ 6492.242636][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6492.242636][   T73]      dst_init+0x84/0x4a0
[ 6492.242636][   T73]      dst_alloc+0x97/0x150
[ 6492.242636][   T73]      ip6_dst_alloc+0x23/0x90
[ 6492.242636][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6492.242636][   T73]      ip6_pol_route+0x56f/0x840
[ 6492.242636][   T73]      fib6_rule_lookup+0x456/0x630
[ 6492.242636][   T73]      ip6_route_input+0x59c/0xa50
[ 6492.242636][   T73]      ipv6_rcv+0x397/0x810
[ 6492.242636][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6492.242636][   T73]      process_backlog+0x101/0x620
[ 6492.242636][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6492.242636][   T73]      net_rx_action+0x495/0xbe0
[ 6492.242636][   T73]      __do_softirq+0x1b5/0x7f6
[ 6492.242636][   T73] 
[ 6492.246501][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6492.246501][   T73]      netdev_get_by_index+0x5e/0x80
[ 6492.246501][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6492.246501][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6492.246501][   T73]      ip6_route_add+0x1c/0x140
[ 6492.246501][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6492.246501][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6492.246501][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6492.246501][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6492.246501][   T73]      netlink_rcv_skb+0x130/0x360
[ 6492.246501][   T73]      netlink_unicast+0x449/0x710
[ 6492.246501][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6492.246501][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6492.246501][   T73]      ___sys_sendmsg+0xee/0x170
[ 6492.246501][   T73]      __sys_sendmsg+0xcd/0x170
[ 6492.246501][   T73]      do_syscall_64+0xc6/0x1e0
[ 6492.246501][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6492.246501][   T73] 
[ 6492.248499][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6492.248499][   T73]      netdev_get_by_index+0x5e/0x80
[ 6492.248499][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6492.248499][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6492.248499][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6492.248499][   T73]      ipv6_add_addr+0x411/0x2000
[ 6492.248499][   T73]      inet6_addr_add+0x30e/0xa40
[ 6492.248499][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6492.248499][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6492.248499][   T73]      netlink_rcv_skb+0x130/0x360
[ 6492.248499][   T73]      netlink_unicast+0x449/0x710
[ 6492.248499][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6492.248499][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6492.248499][   T73]      ___sys_sendmsg+0xee/0x170
[ 6492.248499][   T73]      __sys_sendmsg+0xcd/0x170
[ 6492.248499][   T73]      do_syscall_64+0xc6/0x1e0
[ 6492.248499][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6492.248499][   T73] 
[ 6492.250613][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6492.250613][   T73]      netdev_get_by_index+0x5e/0x80
[ 6492.250613][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6492.250613][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6492.250613][   T73]      ip6_route_add+0x1c/0x140
[ 6492.250613][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6492.250613][   T73]      addrconf_add_dev+0xe2/0x170
[ 6492.250613][   T73]      inet6_addr_add+0x12f/0xa40
[ 6492.250613][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6492.250613][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6492.250613][   T73]      netlink_rcv_skb+0x130/0x360
[ 6492.250613][   T73]      netlink_unicast+0x449/0x710
[ 6492.250613][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6492.250613][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6492.250613][   T73]      ___sys_sendmsg+0xee/0x170
[ 6492.250613][   T73]      __sys_sendmsg+0xcd/0x170
[ 6492.250613][   T73]      do_syscall_64+0xc6/0x1e0
[ 6492.250613][   T73] 
[ 6492.252574][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6492.252574][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6492.252574][   T73]      ipv6_find_idev+0x102/0x170
[ 6492.252574][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6492.252574][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6492.252574][   T73]      netlink_rcv_skb+0x130/0x360
[ 6492.252574][   T73]      netlink_unicast+0x449/0x710
[ 6492.252574][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6492.252574][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6492.252574][   T73]      ___sys_sendmsg+0xee/0x170
[ 6492.252574][   T73]      __sys_sendmsg+0xcd/0x170
[ 6492.252574][   T73]      do_syscall_64+0xc6/0x1e0
[ 6492.252574][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6492.252574][   T73] 
[ 6492.254116][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6492.254116][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6492.254116][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6492.254116][   T73]      ipv6_find_idev+0x102/0x170
[ 6492.254116][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6492.254116][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6492.254116][   T73]      netlink_rcv_skb+0x130/0x360
[ 6492.254116][   T73]      netlink_unicast+0x449/0x710
[ 6492.254116][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6492.254116][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6492.254116][   T73]      ___sys_sendmsg+0xee/0x170
[ 6492.254116][   T73]      __sys_sendmsg+0xcd/0x170
[ 6492.254116][   T73]      do_syscall_64+0xc6/0x1e0
[ 6492.254116][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6492.254116][   T73] 
[ 6492.255820][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6492.256108][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6492.256108][   T73]      netdev_get_by_index+0x5e/0x80
[ 6492.256108][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6492.256108][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6492.256108][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6492.256108][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6492.256108][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6492.256108][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6492.256108][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6492.256108][   T73]      addrconf_dad_begin+0x310/0x670
[ 6492.256108][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6492.256108][   T73]      process_one_work+0x84d/0x18a0
[ 6492.256108][   T73]      worker_thread+0x587/0xd30
[ 6492.256108][   T73]      kthread+0x28a/0x350
[ 6492.256108][   T73]      ret_from_fork+0x31/0x70
[ 6492.256108][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6492.256108][   T73] 
[ 6492.258028][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6492.258028][   T73]      netdev_get_by_index+0x5e/0x80
[ 6492.258028][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6492.258028][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6492.258028][   T73]      ip6_route_add+0x1c/0x140
[ 6492.258028][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6492.258028][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6492.258028][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6492.258028][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6492.258028][   T73]      netlink_rcv_skb+0x130/0x360
[ 6492.258028][   T73]      netlink_unicast+0x449/0x710
[ 6492.258028][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6492.258028][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6492.258028][   T73]      ___sys_sendmsg+0xee/0x170
[ 6492.258028][   T73]      __sys_sendmsg+0xcd/0x170
[ 6492.258028][   T73]      do_syscall_64+0xc6/0x1e0
[ 6492.258028][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6492.258028][   T73] 
[ 6492.260035][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6492.260035][   T73]      netdev_get_by_index+0x5e/0x80
[ 6492.260035][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6492.260035][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6492.260035][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6492.260035][   T73]      ipv6_add_addr+0x411/0x2000
[ 6492.260035][   T73]      inet6_addr_add+0x30e/0xa40
[ 6492.260035][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6492.260035][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6492.260035][   T73]      netlink_rcv_skb+0x130/0x360
[ 6492.260035][   T73]      netlink_unicast+0x449/0x710
[ 6492.260035][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6492.260035][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6492.260035][   T73]      ___sys_sendmsg+0xee/0x170
[ 6492.260035][   T73]      __sys_sendmsg+0xcd/0x170
[ 6492.260035][   T73]      do_syscall_64+0xc6/0x1e0
[ 6492.260035][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6492.260035][   T73] 
[ 6492.262032][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6492.262032][   T73]      netdev_get_by_index+0x5e/0x80
[ 6492.262032][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6492.262032][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6492.262032][   T73]      ip6_route_add+0x1c/0x140
[ 6492.262032][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6492.262032][   T73]      addrconf_add_dev+0xe2/0x170
[ 6492.262032][   T73]      inet6_addr_add+0x12f/0xa40
[ 6492.262032][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6492.262032][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6492.262032][   T73]      netlink_rcv_skb+0x130/0x360
[ 6492.262032][   T73]      netlink_unicast+0x449/0x710
[ 6492.262032][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6492.262032][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6492.262032][   T73]      ___sys_sendmsg+0xee/0x170
[ 6492.262032][   T73]      __sys_sendmsg+0xcd/0x170
[ 6492.262032][   T73]      do_syscall_64+0xc6/0x1e0
[ 6492.262032][   T73] 
[ 6492.263994][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6492.263994][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6492.263994][   T73]      ipv6_find_idev+0x102/0x170
[ 6492.263994][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6492.263994][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6492.263994][   T73]      netlink_rcv_skb+0x130/0x360
[ 6492.263994][   T73]      netlink_unicast+0x449/0x710
[ 6492.263994][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6492.263994][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6492.263994][   T73]      ___sys_sendmsg+0xee/0x170
[ 6492.263994][   T73]      __sys_sendmsg+0xcd/0x170
[ 6492.263994][   T73]      do_syscall_64+0xc6/0x1e0
[ 6492.263994][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6492.263994][   T73] 
[ 6492.265528][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6492.265528][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6492.265528][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6492.265528][   T73]      ipv6_find_idev+0x102/0x170
[ 6492.265528][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6492.265528][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6492.265528][   T73]      netlink_rcv_skb+0x130/0x360
[ 6492.265528][   T73]      netlink_unicast+0x449/0x710
[ 6492.265528][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6492.265528][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6492.265528][   T73]      ___sys_sendmsg+0xee/0x170
[ 6492.265528][   T73]      __sys_sendmsg+0xcd/0x170
[ 6492.265528][   T73]      do_syscall_64+0xc6/0x1e0
[ 6492.265528][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6492.265528][   T73] 
[ 6492.267208][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6492.267495][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6492.267495][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6492.267495][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6492.267495][   T73]      fib6_nh_init+0xa22/0x1580
[ 6492.267495][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6492.267495][   T73]      ip6_route_add+0x1c/0x140
[ 6492.267495][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6492.267495][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6492.267495][   T73]      netlink_rcv_skb+0x130/0x360
[ 6492.267495][   T73]      netlink_unicast+0x449/0x710
[ 6492.267495][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6492.267495][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6492.267495][   T73]      ___sys_sendmsg+0xee/0x170
[ 6492.267495][   T73]      __sys_sendmsg+0xcd/0x170
[ 6492.267495][   T73]      do_syscall_64+0xc6/0x1e0
[ 6492.267495][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6492.267495][   T73] 
[ 6492.272637][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6492.272637][   T73]      dst_init+0x84/0x4a0
[ 6492.272637][   T73]      dst_alloc+0x97/0x150
[ 6492.272637][   T73]      ip6_dst_alloc+0x23/0x90
[ 6492.272637][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6492.272637][   T73]      ip6_pol_route+0x56f/0x840
[ 6492.272637][   T73]      fib6_rule_lookup+0x456/0x630
[ 6492.272637][   T73]      ip6_route_input+0x59c/0xa50
[ 6492.272637][   T73]      ipv6_rcv+0x397/0x810
[ 6492.272637][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6492.272637][   T73]      process_backlog+0x101/0x620
[ 6492.272637][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6492.272637][   T73]      net_rx_action+0x495/0xbe0
[ 6492.272637][   T73]      __do_softirq+0x1b5/0x7f6
[ 6492.272637][   T73] 
[ 6492.274536][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6492.274536][   T73]      netdev_get_by_index+0x5e/0x80
[ 6492.274536][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6492.274536][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6492.274536][   T73]      ip6_route_add+0x1c/0x140
[ 6492.274536][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6492.274536][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6492.274536][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6492.274536][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6492.274536][   T73]      netlink_rcv_skb+0x130/0x360
[ 6492.274536][   T73]      netlink_unicast+0x449/0x710
[ 6492.274536][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6492.274536][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6492.274536][   T73]      ___sys_sendmsg+0xee/0x170
[ 6492.274536][   T73]      __sys_sendmsg+0xcd/0x170
[ 6492.274536][   T73]      do_syscall_64+0xc6/0x1e0
[ 6492.274536][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6492.274536][   T73] 
[ 6492.276782][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6492.276782][   T73]      netdev_get_by_index+0x5e/0x80
[ 6492.276782][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6492.276782][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6492.276782][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6492.276782][   T73]      ipv6_add_addr+0x411/0x2000
[ 6492.276782][   T73]      inet6_addr_add+0x30e/0xa40
[ 6492.276782][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6492.276782][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6492.276782][   T73]      netlink_rcv_skb+0x130/0x360
[ 6492.276782][   T73]      netlink_unicast+0x449/0x710
[ 6492.276782][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6492.276782][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6492.276782][   T73]      ___sys_sendmsg+0xee/0x170
[ 6492.276782][   T73]      __sys_sendmsg+0xcd/0x170
[ 6492.276782][   T73]      do_syscall_64+0xc6/0x1e0
[ 6492.276782][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6492.276782][   T73] 
[ 6492.278959][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6492.278959][   T73]      netdev_get_by_index+0x5e/0x80
[ 6492.278959][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6492.278959][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6492.278959][   T73]      ip6_route_add+0x1c/0x140
[ 6492.278959][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6492.278959][   T73]      addrconf_add_dev+0xe2/0x170
[ 6492.278959][   T73]      inet6_addr_add+0x12f/0xa40
[ 6492.278959][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6492.278959][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6492.278959][   T73]      netlink_rcv_skb+0x130/0x360
[ 6492.278959][   T73]      netlink_unicast+0x449/0x710
[ 6492.278959][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6492.278959][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6492.278959][   T73]      ___sys_sendmsg+0xee/0x170
[ 6492.278959][   T73]      __sys_sendmsg+0xcd/0x170
[ 6492.278959][   T73]      do_syscall_64+0xc6/0x1e0
[ 6492.278959][   T73] 
[ 6492.281172][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6492.281172][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6492.281172][   T73]      ipv6_find_idev+0x102/0x170
[ 6492.281172][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6492.281172][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6492.281172][   T73]      netlink_rcv_skb+0x130/0x360
[ 6492.281172][   T73]      netlink_unicast+0x449/0x710
[ 6492.281172][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6492.281172][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6492.281172][   T73]      ___sys_sendmsg+0xee/0x170
[ 6492.281172][   T73]      __sys_sendmsg+0xcd/0x170
[ 6492.281172][   T73]      do_syscall_64+0xc6/0x1e0
[ 6492.281172][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6492.281172][   T73] 
[ 6492.282961][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6492.282961][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6492.282961][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6492.282961][   T73]      ipv6_find_idev+0x102/0x170
[ 6492.282961][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6492.282961][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6492.282961][   T73]      netlink_rcv_skb+0x130/0x360
[ 6492.282961][   T73]      netlink_unicast+0x449/0x710
[ 6492.282961][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6492.282961][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6492.282961][   T73]      ___sys_sendmsg+0xee/0x170
[ 6492.282961][   T73]      __sys_sendmsg+0xcd/0x170
[ 6492.282961][   T73]      do_syscall_64+0xc6/0x1e0
[ 6492.282961][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6492.282961][   T73] 
[ 6492.284900][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6492.285171][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6492.285171][   T73]      netdev_get_by_index+0x5e/0x80
[ 6492.285171][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6492.285171][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6492.285171][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6492.285171][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6492.285171][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6492.285171][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6492.285171][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6492.285171][   T73]      addrconf_dad_begin+0x310/0x670
[ 6492.285171][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6492.285171][   T73]      process_one_work+0x84d/0x18a0
[ 6492.285171][   T73]      worker_thread+0x587/0xd30
[ 6492.285171][   T73]      kthread+0x28a/0x350
[ 6492.285171][   T73]      ret_from_fork+0x31/0x70
[ 6492.285171][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6492.285171][   T73] 
[ 6492.287336][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6492.287336][   T73]      netdev_get_by_index+0x5e/0x80
[ 6492.287336][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6492.287336][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6492.287336][   T73]      ip6_route_add+0x1c/0x140
[ 6492.287336][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6492.287336][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6492.287336][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6492.287336][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6492.287336][   T73]      netlink_rcv_skb+0x130/0x360
[ 6492.287336][   T73]      netlink_unicast+0x449/0x710
[ 6492.287336][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6492.287336][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6492.287336][   T73]      ___sys_sendmsg+0xee/0x170
[ 6492.287336][   T73]      __sys_sendmsg+0xcd/0x170
[ 6492.287336][   T73]      do_syscall_64+0xc6/0x1e0
[ 6492.287336][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6492.287336][   T73] 
[ 6492.289512][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6492.289512][   T73]      netdev_get_by_index+0x5e/0x80
[ 6492.289512][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6492.289512][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6492.289512][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6492.289512][   T73]      ipv6_add_addr+0x411/0x2000
[ 6492.289512][   T73]      inet6_addr_add+0x30e/0xa40
[ 6492.289512][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6492.289512][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6492.289512][   T73]      netlink_rcv_skb+0x130/0x360
[ 6492.289512][   T73]      netlink_unicast+0x449/0x710
[ 6492.289512][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6492.289512][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6492.289512][   T73]      ___sys_sendmsg+0xee/0x170
[ 6492.289512][   T73]      __sys_sendmsg+0xcd/0x170
[ 6492.289512][   T73]      do_syscall_64+0xc6/0x1e0
[ 6492.289512][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6492.289512][   T73] 
[ 6492.291761][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6492.291761][   T73]      netdev_get_by_index+0x5e/0x80
[ 6492.291761][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6492.291761][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6492.291761][   T73]      ip6_route_add+0x1c/0x140
[ 6492.291761][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6492.291761][   T73]      addrconf_add_dev+0xe2/0x170
[ 6492.291761][   T73]      inet6_addr_add+0x12f/0xa40
[ 6492.291761][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6492.291761][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6492.291761][   T73]      netlink_rcv_skb+0x130/0x360
[ 6492.291761][   T73]      netlink_unicast+0x449/0x710
[ 6492.291761][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6492.291761][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6492.291761][   T73]      ___sys_sendmsg+0xee/0x170
[ 6492.291761][   T73]      __sys_sendmsg+0xcd/0x170
[ 6492.291761][   T73]      do_syscall_64+0xc6/0x1e0
[ 6492.291761][   T73] 
[ 6492.294037][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6492.294037][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6492.294037][   T73]      ipv6_find_idev+0x102/0x170
[ 6492.294037][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6492.294037][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6492.294037][   T73]      netlink_rcv_skb+0x130/0x360
[ 6492.294037][   T73]      netlink_unicast+0x449/0x710
[ 6492.294037][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6492.294037][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6492.294037][   T73]      ___sys_sendmsg+0xee/0x170
[ 6492.294037][   T73]      __sys_sendmsg+0xcd/0x170
[ 6492.294037][   T73]      do_syscall_64+0xc6/0x1e0
[ 6492.294037][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6492.294037][   T73] 
[ 6492.295768][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6492.295768][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6492.295768][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6492.295768][   T73]      ipv6_find_idev+0x102/0x170
[ 6492.295768][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6492.295768][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6492.295768][   T73]      netlink_rcv_skb+0x130/0x360
[ 6492.295768][   T73]      netlink_unicast+0x449/0x710
[ 6492.295768][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6492.295768][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6492.295768][   T73]      ___sys_sendmsg+0xee/0x170
[ 6492.295768][   T73]      __sys_sendmsg+0xcd/0x170
[ 6492.295768][   T73]      do_syscall_64+0xc6/0x1e0
[ 6492.295768][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6492.295768][   T73] 
[ 6502.535778][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6502.536247][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6502.536247][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6502.536247][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6502.536247][   T73]      fib6_nh_init+0xa22/0x1580
[ 6502.536247][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6502.536247][   T73]      ip6_route_add+0x1c/0x140
[ 6502.536247][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6502.536247][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6502.536247][   T73]      netlink_rcv_skb+0x130/0x360
[ 6502.536247][   T73]      netlink_unicast+0x449/0x710
[ 6502.536247][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6502.536247][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6502.536247][   T73]      ___sys_sendmsg+0xee/0x170
[ 6502.536247][   T73]      __sys_sendmsg+0xcd/0x170
[ 6502.536247][   T73]      do_syscall_64+0xc6/0x1e0
[ 6502.536247][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6502.536247][   T73] 
[ 6502.538193][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6502.538193][   T73]      dst_init+0x84/0x4a0
[ 6502.538193][   T73]      dst_alloc+0x97/0x150
[ 6502.538193][   T73]      ip6_dst_alloc+0x23/0x90
[ 6502.538193][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6502.538193][   T73]      ip6_pol_route+0x56f/0x840
[ 6502.538193][   T73]      fib6_rule_lookup+0x456/0x630
[ 6502.538193][   T73]      ip6_route_input+0x59c/0xa50
[ 6502.538193][   T73]      ipv6_rcv+0x397/0x810
[ 6502.538193][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6502.538193][   T73]      process_backlog+0x101/0x620
[ 6502.538193][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6502.538193][   T73]      net_rx_action+0x495/0xbe0
[ 6502.538193][   T73]      __do_softirq+0x1b5/0x7f6
[ 6502.538193][   T73] 
[ 6502.539871][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6502.539871][   T73]      netdev_get_by_index+0x5e/0x80
[ 6502.539871][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6502.539871][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6502.539871][   T73]      ip6_route_add+0x1c/0x140
[ 6502.539871][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6502.539871][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6502.539871][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6502.539871][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6502.539871][   T73]      netlink_rcv_skb+0x130/0x360
[ 6502.539871][   T73]      netlink_unicast+0x449/0x710
[ 6502.539871][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6502.539871][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6502.539871][   T73]      ___sys_sendmsg+0xee/0x170
[ 6502.539871][   T73]      __sys_sendmsg+0xcd/0x170
[ 6502.539871][   T73]      do_syscall_64+0xc6/0x1e0
[ 6502.539871][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6502.539871][   T73] 
[ 6502.541899][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6502.541899][   T73]      netdev_get_by_index+0x5e/0x80
[ 6502.541899][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6502.541899][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6502.541899][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6502.541899][   T73]      ipv6_add_addr+0x411/0x2000
[ 6502.541899][   T73]      inet6_addr_add+0x30e/0xa40
[ 6502.541899][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6502.541899][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6502.541899][   T73]      netlink_rcv_skb+0x130/0x360
[ 6502.541899][   T73]      netlink_unicast+0x449/0x710
[ 6502.541899][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6502.541899][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6502.541899][   T73]      ___sys_sendmsg+0xee/0x170
[ 6502.541899][   T73]      __sys_sendmsg+0xcd/0x170
[ 6502.541899][   T73]      do_syscall_64+0xc6/0x1e0
[ 6502.541899][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6502.541899][   T73] 
[ 6502.543933][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6502.543933][   T73]      netdev_get_by_index+0x5e/0x80
[ 6502.543933][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6502.543933][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6502.543933][   T73]      ip6_route_add+0x1c/0x140
[ 6502.543933][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6502.543933][   T73]      addrconf_add_dev+0xe2/0x170
[ 6502.543933][   T73]      inet6_addr_add+0x12f/0xa40
[ 6502.543933][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6502.543933][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6502.543933][   T73]      netlink_rcv_skb+0x130/0x360
[ 6502.543933][   T73]      netlink_unicast+0x449/0x710
[ 6502.543933][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6502.543933][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6502.543933][   T73]      ___sys_sendmsg+0xee/0x170
[ 6502.543933][   T73]      __sys_sendmsg+0xcd/0x170
[ 6502.543933][   T73]      do_syscall_64+0xc6/0x1e0
[ 6502.543933][   T73] 
[ 6502.546490][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6502.546490][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6502.546490][   T73]      ipv6_find_idev+0x102/0x170
[ 6502.546490][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6502.546490][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6502.546490][   T73]      netlink_rcv_skb+0x130/0x360
[ 6502.546490][   T73]      netlink_unicast+0x449/0x710
[ 6502.546490][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6502.546490][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6502.546490][   T73]      ___sys_sendmsg+0xee/0x170
[ 6502.546490][   T73]      __sys_sendmsg+0xcd/0x170
[ 6502.546490][   T73]      do_syscall_64+0xc6/0x1e0
[ 6502.546490][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6502.546490][   T73] 
[ 6502.548061][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6502.548061][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6502.548061][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6502.548061][   T73]      ipv6_find_idev+0x102/0x170
[ 6502.548061][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6502.548061][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6502.548061][   T73]      netlink_rcv_skb+0x130/0x360
[ 6502.548061][   T73]      netlink_unicast+0x449/0x710
[ 6502.548061][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6502.548061][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6502.548061][   T73]      ___sys_sendmsg+0xee/0x170
[ 6502.548061][   T73]      __sys_sendmsg+0xcd/0x170
[ 6502.548061][   T73]      do_syscall_64+0xc6/0x1e0
[ 6502.548061][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6502.548061][   T73] 
[ 6502.549788][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6502.552689][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6502.552689][   T73]      netdev_get_by_index+0x5e/0x80
[ 6502.552689][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6502.552689][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6502.552689][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6502.552689][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6502.552689][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6502.552689][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6502.552689][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6502.552689][   T73]      addrconf_dad_begin+0x310/0x670
[ 6502.552689][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6502.552689][   T73]      process_one_work+0x84d/0x18a0
[ 6502.552689][   T73]      worker_thread+0x587/0xd30
[ 6502.552689][   T73]      kthread+0x28a/0x350
[ 6502.552689][   T73]      ret_from_fork+0x31/0x70
[ 6502.552689][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6502.552689][   T73] 
[ 6502.554656][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6502.554656][   T73]      netdev_get_by_index+0x5e/0x80
[ 6502.554656][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6502.554656][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6502.554656][   T73]      ip6_route_add+0x1c/0x140
[ 6502.554656][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6502.554656][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6502.554656][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6502.554656][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6502.554656][   T73]      netlink_rcv_skb+0x130/0x360
[ 6502.554656][   T73]      netlink_unicast+0x449/0x710
[ 6502.554656][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6502.554656][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6502.554656][   T73]      ___sys_sendmsg+0xee/0x170
[ 6502.554656][   T73]      __sys_sendmsg+0xcd/0x170
[ 6502.554656][   T73]      do_syscall_64+0xc6/0x1e0
[ 6502.554656][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6502.554656][   T73] 
[ 6502.556694][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6502.556694][   T73]      netdev_get_by_index+0x5e/0x80
[ 6502.556694][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6502.556694][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6502.556694][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6502.556694][   T73]      ipv6_add_addr+0x411/0x2000
[ 6502.556694][   T73]      inet6_addr_add+0x30e/0xa40
[ 6502.556694][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6502.556694][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6502.556694][   T73]      netlink_rcv_skb+0x130/0x360
[ 6502.556694][   T73]      netlink_unicast+0x449/0x710
[ 6502.556694][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6502.556694][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6502.556694][   T73]      ___sys_sendmsg+0xee/0x170
[ 6502.556694][   T73]      __sys_sendmsg+0xcd/0x170
[ 6502.556694][   T73]      do_syscall_64+0xc6/0x1e0
[ 6502.556694][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6502.556694][   T73] 
[ 6502.558737][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6502.558737][   T73]      netdev_get_by_index+0x5e/0x80
[ 6502.558737][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6502.558737][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6502.558737][   T73]      ip6_route_add+0x1c/0x140
[ 6502.558737][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6502.558737][   T73]      addrconf_add_dev+0xe2/0x170
[ 6502.558737][   T73]      inet6_addr_add+0x12f/0xa40
[ 6502.558737][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6502.558737][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6502.558737][   T73]      netlink_rcv_skb+0x130/0x360
[ 6502.558737][   T73]      netlink_unicast+0x449/0x710
[ 6502.558737][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6502.558737][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6502.558737][   T73]      ___sys_sendmsg+0xee/0x170
[ 6502.558737][   T73]      __sys_sendmsg+0xcd/0x170
[ 6502.558737][   T73]      do_syscall_64+0xc6/0x1e0
[ 6502.558737][   T73] 
[ 6502.560738][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6502.560738][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6502.560738][   T73]      ipv6_find_idev+0x102/0x170
[ 6502.560738][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6502.560738][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6502.560738][   T73]      netlink_rcv_skb+0x130/0x360
[ 6502.560738][   T73]      netlink_unicast+0x449/0x710
[ 6502.560738][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6502.560738][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6502.560738][   T73]      ___sys_sendmsg+0xee/0x170
[ 6502.560738][   T73]      __sys_sendmsg+0xcd/0x170
[ 6502.560738][   T73]      do_syscall_64+0xc6/0x1e0
[ 6502.560738][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6502.560738][   T73] 
[ 6502.562300][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6502.562300][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6502.562300][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6502.562300][   T73]      ipv6_find_idev+0x102/0x170
[ 6502.562300][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6502.562300][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6502.562300][   T73]      netlink_rcv_skb+0x130/0x360
[ 6502.562300][   T73]      netlink_unicast+0x449/0x710
[ 6502.562300][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6502.562300][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6502.562300][   T73]      ___sys_sendmsg+0xee/0x170
[ 6502.562300][   T73]      __sys_sendmsg+0xcd/0x170
[ 6502.562300][   T73]      do_syscall_64+0xc6/0x1e0
[ 6502.562300][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6502.562300][   T73] 
[ 6502.565626][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6502.565924][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6502.565924][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6502.565924][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6502.565924][   T73]      fib6_nh_init+0xa22/0x1580
[ 6502.565924][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6502.565924][   T73]      ip6_route_add+0x1c/0x140
[ 6502.565924][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6502.565924][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6502.565924][   T73]      netlink_rcv_skb+0x130/0x360
[ 6502.565924][   T73]      netlink_unicast+0x449/0x710
[ 6502.565924][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6502.565924][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6502.565924][   T73]      ___sys_sendmsg+0xee/0x170
[ 6502.565924][   T73]      __sys_sendmsg+0xcd/0x170
[ 6502.565924][   T73]      do_syscall_64+0xc6/0x1e0
[ 6502.565924][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6502.565924][   T73] 
[ 6502.568135][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6502.568135][   T73]      dst_init+0x84/0x4a0
[ 6502.568135][   T73]      dst_alloc+0x97/0x150
[ 6502.568135][   T73]      ip6_dst_alloc+0x23/0x90
[ 6502.568135][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6502.568135][   T73]      ip6_pol_route+0x56f/0x840
[ 6502.568135][   T73]      fib6_rule_lookup+0x456/0x630
[ 6502.568135][   T73]      ip6_route_input+0x59c/0xa50
[ 6502.568135][   T73]      ipv6_rcv+0x397/0x810
[ 6502.568135][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6502.568135][   T73]      process_backlog+0x101/0x620
[ 6502.568135][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6502.568135][   T73]      net_rx_action+0x495/0xbe0
[ 6502.568135][   T73]      __do_softirq+0x1b5/0x7f6
[ 6502.568135][   T73] 
[ 6502.569976][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6502.569976][   T73]      netdev_get_by_index+0x5e/0x80
[ 6502.569976][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6502.569976][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6502.569976][   T73]      ip6_route_add+0x1c/0x140
[ 6502.569976][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6502.569976][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6502.569976][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6502.569976][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6502.569976][   T73]      netlink_rcv_skb+0x130/0x360
[ 6502.569976][   T73]      netlink_unicast+0x449/0x710
[ 6502.569976][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6502.569976][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6502.569976][   T73]      ___sys_sendmsg+0xee/0x170
[ 6502.569976][   T73]      __sys_sendmsg+0xcd/0x170
[ 6502.569976][   T73]      do_syscall_64+0xc6/0x1e0
[ 6502.569976][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6502.569976][   T73] 
[ 6502.572244][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6502.572244][   T73]      netdev_get_by_index+0x5e/0x80
[ 6502.572244][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6502.572244][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6502.572244][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6502.572244][   T73]      ipv6_add_addr+0x411/0x2000
[ 6502.572244][   T73]      inet6_addr_add+0x30e/0xa40
[ 6502.572244][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6502.572244][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6502.572244][   T73]      netlink_rcv_skb+0x130/0x360
[ 6502.572244][   T73]      netlink_unicast+0x449/0x710
[ 6502.572244][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6502.572244][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6502.572244][   T73]      ___sys_sendmsg+0xee/0x170
[ 6502.572244][   T73]      __sys_sendmsg+0xcd/0x170
[ 6502.572244][   T73]      do_syscall_64+0xc6/0x1e0
[ 6502.572244][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6502.572244][   T73] 
[ 6502.574576][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6502.574576][   T73]      netdev_get_by_index+0x5e/0x80
[ 6502.574576][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6502.574576][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6502.574576][   T73]      ip6_route_add+0x1c/0x140
[ 6502.574576][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6502.574576][   T73]      addrconf_add_dev+0xe2/0x170
[ 6502.574576][   T73]      inet6_addr_add+0x12f/0xa40
[ 6502.574576][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6502.574576][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6502.574576][   T73]      netlink_rcv_skb+0x130/0x360
[ 6502.574576][   T73]      netlink_unicast+0x449/0x710
[ 6502.574576][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6502.574576][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6502.574576][   T73]      ___sys_sendmsg+0xee/0x170
[ 6502.574576][   T73]      __sys_sendmsg+0xcd/0x170
[ 6502.574576][   T73]      do_syscall_64+0xc6/0x1e0
[ 6502.574576][   T73] 
[ 6502.576817][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6502.576817][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6502.576817][   T73]      ipv6_find_idev+0x102/0x170
[ 6502.576817][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6502.576817][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6502.576817][   T73]      netlink_rcv_skb+0x130/0x360
[ 6502.576817][   T73]      netlink_unicast+0x449/0x710
[ 6502.576817][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6502.576817][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6502.576817][   T73]      ___sys_sendmsg+0xee/0x170
[ 6502.576817][   T73]      __sys_sendmsg+0xcd/0x170
[ 6502.576817][   T73]      do_syscall_64+0xc6/0x1e0
[ 6502.576817][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6502.576817][   T73] 
[ 6502.578576][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6502.578576][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6502.578576][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6502.578576][   T73]      ipv6_find_idev+0x102/0x170
[ 6502.578576][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6502.578576][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6502.578576][   T73]      netlink_rcv_skb+0x130/0x360
[ 6502.578576][   T73]      netlink_unicast+0x449/0x710
[ 6502.578576][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6502.578576][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6502.578576][   T73]      ___sys_sendmsg+0xee/0x170
[ 6502.578576][   T73]      __sys_sendmsg+0xcd/0x170
[ 6502.578576][   T73]      do_syscall_64+0xc6/0x1e0
[ 6502.578576][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6502.578576][   T73] 
[ 6502.580491][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6502.581195][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6502.581195][   T73]      netdev_get_by_index+0x5e/0x80
[ 6502.581195][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6502.581195][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6502.581195][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6502.581195][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6502.581195][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6502.581195][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6502.581195][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6502.581195][   T73]      addrconf_dad_begin+0x310/0x670
[ 6502.581195][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6502.581195][   T73]      process_one_work+0x84d/0x18a0
[ 6502.581195][   T73]      worker_thread+0x587/0xd30
[ 6502.581195][   T73]      kthread+0x28a/0x350
[ 6502.581195][   T73]      ret_from_fork+0x31/0x70
[ 6502.581195][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6502.581195][   T73] 
[ 6502.583154][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6502.583154][   T73]      netdev_get_by_index+0x5e/0x80
[ 6502.583154][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6502.583154][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6502.583154][   T73]      ip6_route_add+0x1c/0x140
[ 6502.583154][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6502.583154][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6502.583154][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6502.583154][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6502.583154][   T73]      netlink_rcv_skb+0x130/0x360
[ 6502.583154][   T73]      netlink_unicast+0x449/0x710
[ 6502.583154][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6502.583154][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6502.583154][   T73]      ___sys_sendmsg+0xee/0x170
[ 6502.583154][   T73]      __sys_sendmsg+0xcd/0x170
[ 6502.583154][   T73]      do_syscall_64+0xc6/0x1e0
[ 6502.583154][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6502.583154][   T73] 
[ 6502.585315][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6502.585315][   T73]      netdev_get_by_index+0x5e/0x80
[ 6502.585315][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6502.585315][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6502.585315][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6502.585315][   T73]      ipv6_add_addr+0x411/0x2000
[ 6502.585315][   T73]      inet6_addr_add+0x30e/0xa40
[ 6502.585315][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6502.585315][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6502.585315][   T73]      netlink_rcv_skb+0x130/0x360
[ 6502.585315][   T73]      netlink_unicast+0x449/0x710
[ 6502.585315][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6502.585315][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6502.585315][   T73]      ___sys_sendmsg+0xee/0x170
[ 6502.585315][   T73]      __sys_sendmsg+0xcd/0x170
[ 6502.585315][   T73]      do_syscall_64+0xc6/0x1e0
[ 6502.585315][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6502.585315][   T73] 
[ 6502.587649][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6502.587649][   T73]      netdev_get_by_index+0x5e/0x80
[ 6502.587649][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6502.587649][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6502.587649][   T73]      ip6_route_add+0x1c/0x140
[ 6502.587649][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6502.587649][   T73]      addrconf_add_dev+0xe2/0x170
[ 6502.587649][   T73]      inet6_addr_add+0x12f/0xa40
[ 6502.587649][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6502.587649][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6502.587649][   T73]      netlink_rcv_skb+0x130/0x360
[ 6502.587649][   T73]      netlink_unicast+0x449/0x710
[ 6502.587649][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6502.587649][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6502.587649][   T73]      ___sys_sendmsg+0xee/0x170
[ 6502.587649][   T73]      __sys_sendmsg+0xcd/0x170
[ 6502.587649][   T73]      do_syscall_64+0xc6/0x1e0
[ 6502.587649][   T73] 
[ 6502.589823][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6502.589823][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6502.589823][   T73]      ipv6_find_idev+0x102/0x170
[ 6502.589823][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6502.589823][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6502.589823][   T73]      netlink_rcv_skb+0x130/0x360
[ 6502.589823][   T73]      netlink_unicast+0x449/0x710
[ 6502.589823][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6502.589823][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6502.589823][   T73]      ___sys_sendmsg+0xee/0x170
[ 6502.589823][   T73]      __sys_sendmsg+0xcd/0x170
[ 6502.589823][   T73]      do_syscall_64+0xc6/0x1e0
[ 6502.589823][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6502.589823][   T73] 
[ 6502.591576][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6502.591576][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6502.591576][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6502.591576][   T73]      ipv6_find_idev+0x102/0x170
[ 6502.591576][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6502.591576][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6502.591576][   T73]      netlink_rcv_skb+0x130/0x360
[ 6502.591576][   T73]      netlink_unicast+0x449/0x710
[ 6502.591576][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6502.591576][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6502.591576][   T73]      ___sys_sendmsg+0xee/0x170
[ 6502.591576][   T73]      __sys_sendmsg+0xcd/0x170
[ 6502.591576][   T73]      do_syscall_64+0xc6/0x1e0
[ 6502.591576][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6502.591576][   T73] 
[ 6512.671774][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6512.672250][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6512.672250][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6512.672250][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6512.672250][   T73]      fib6_nh_init+0xa22/0x1580
[ 6512.672250][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6512.672250][   T73]      ip6_route_add+0x1c/0x140
[ 6512.672250][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6512.672250][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6512.672250][   T73]      netlink_rcv_skb+0x130/0x360
[ 6512.672250][   T73]      netlink_unicast+0x449/0x710
[ 6512.672250][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6512.672250][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6512.672250][   T73]      ___sys_sendmsg+0xee/0x170
[ 6512.672250][   T73]      __sys_sendmsg+0xcd/0x170
[ 6512.672250][   T73]      do_syscall_64+0xc6/0x1e0
[ 6512.672250][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6512.672250][   T73] 
[ 6512.674221][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6512.674221][   T73]      dst_init+0x84/0x4a0
[ 6512.674221][   T73]      dst_alloc+0x97/0x150
[ 6512.674221][   T73]      ip6_dst_alloc+0x23/0x90
[ 6512.674221][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6512.674221][   T73]      ip6_pol_route+0x56f/0x840
[ 6512.674221][   T73]      fib6_rule_lookup+0x456/0x630
[ 6512.674221][   T73]      ip6_route_input+0x59c/0xa50
[ 6512.674221][   T73]      ipv6_rcv+0x397/0x810
[ 6512.674221][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6512.674221][   T73]      process_backlog+0x101/0x620
[ 6512.674221][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6512.674221][   T73]      net_rx_action+0x495/0xbe0
[ 6512.674221][   T73]      __do_softirq+0x1b5/0x7f6
[ 6512.674221][   T73] 
[ 6512.675896][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6512.675896][   T73]      netdev_get_by_index+0x5e/0x80
[ 6512.675896][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6512.675896][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6512.675896][   T73]      ip6_route_add+0x1c/0x140
[ 6512.675896][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6512.675896][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6512.675896][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6512.675896][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6512.675896][   T73]      netlink_rcv_skb+0x130/0x360
[ 6512.675896][   T73]      netlink_unicast+0x449/0x710
[ 6512.675896][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6512.675896][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6512.675896][   T73]      ___sys_sendmsg+0xee/0x170
[ 6512.675896][   T73]      __sys_sendmsg+0xcd/0x170
[ 6512.675896][   T73]      do_syscall_64+0xc6/0x1e0
[ 6512.675896][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6512.675896][   T73] 
[ 6512.677950][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6512.677950][   T73]      netdev_get_by_index+0x5e/0x80
[ 6512.677950][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6512.677950][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6512.677950][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6512.677950][   T73]      ipv6_add_addr+0x411/0x2000
[ 6512.677950][   T73]      inet6_addr_add+0x30e/0xa40
[ 6512.677950][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6512.677950][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6512.677950][   T73]      netlink_rcv_skb+0x130/0x360
[ 6512.677950][   T73]      netlink_unicast+0x449/0x710
[ 6512.677950][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6512.677950][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6512.677950][   T73]      ___sys_sendmsg+0xee/0x170
[ 6512.677950][   T73]      __sys_sendmsg+0xcd/0x170
[ 6512.677950][   T73]      do_syscall_64+0xc6/0x1e0
[ 6512.677950][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6512.677950][   T73] 
[ 6512.679989][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6512.679989][   T73]      netdev_get_by_index+0x5e/0x80
[ 6512.679989][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6512.679989][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6512.679989][   T73]      ip6_route_add+0x1c/0x140
[ 6512.679989][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6512.679989][   T73]      addrconf_add_dev+0xe2/0x170
[ 6512.679989][   T73]      inet6_addr_add+0x12f/0xa40
[ 6512.679989][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6512.679989][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6512.679989][   T73]      netlink_rcv_skb+0x130/0x360
[ 6512.679989][   T73]      netlink_unicast+0x449/0x710
[ 6512.679989][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6512.679989][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6512.679989][   T73]      ___sys_sendmsg+0xee/0x170
[ 6512.679989][   T73]      __sys_sendmsg+0xcd/0x170
[ 6512.679989][   T73]      do_syscall_64+0xc6/0x1e0
[ 6512.679989][   T73] 
[ 6512.682013][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6512.682013][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6512.682013][   T73]      ipv6_find_idev+0x102/0x170
[ 6512.682013][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6512.682013][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6512.682013][   T73]      netlink_rcv_skb+0x130/0x360
[ 6512.682013][   T73]      netlink_unicast+0x449/0x710
[ 6512.682013][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6512.682013][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6512.682013][   T73]      ___sys_sendmsg+0xee/0x170
[ 6512.682013][   T73]      __sys_sendmsg+0xcd/0x170
[ 6512.682013][   T73]      do_syscall_64+0xc6/0x1e0
[ 6512.682013][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6512.682013][   T73] 
[ 6512.683610][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6512.683610][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6512.683610][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6512.683610][   T73]      ipv6_find_idev+0x102/0x170
[ 6512.683610][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6512.683610][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6512.683610][   T73]      netlink_rcv_skb+0x130/0x360
[ 6512.683610][   T73]      netlink_unicast+0x449/0x710
[ 6512.683610][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6512.683610][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6512.683610][   T73]      ___sys_sendmsg+0xee/0x170
[ 6512.683610][   T73]      __sys_sendmsg+0xcd/0x170
[ 6512.683610][   T73]      do_syscall_64+0xc6/0x1e0
[ 6512.683610][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6512.683610][   T73] 
[ 6512.685359][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6512.685763][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6512.685763][   T73]      netdev_get_by_index+0x5e/0x80
[ 6512.685763][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6512.685763][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6512.685763][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6512.685763][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6512.685763][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6512.685763][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6512.685763][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6512.685763][   T73]      addrconf_dad_begin+0x310/0x670
[ 6512.685763][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6512.685763][   T73]      process_one_work+0x84d/0x18a0
[ 6512.685763][   T73]      worker_thread+0x587/0xd30
[ 6512.685763][   T73]      kthread+0x28a/0x350
[ 6512.685763][   T73]      ret_from_fork+0x31/0x70
[ 6512.685763][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6512.685763][   T73] 
[ 6512.687732][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6512.687732][   T73]      netdev_get_by_index+0x5e/0x80
[ 6512.687732][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6512.687732][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6512.687732][   T73]      ip6_route_add+0x1c/0x140
[ 6512.687732][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6512.687732][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6512.687732][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6512.687732][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6512.687732][   T73]      netlink_rcv_skb+0x130/0x360
[ 6512.687732][   T73]      netlink_unicast+0x449/0x710
[ 6512.687732][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6512.687732][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6512.687732][   T73]      ___sys_sendmsg+0xee/0x170
[ 6512.687732][   T73]      __sys_sendmsg+0xcd/0x170
[ 6512.687732][   T73]      do_syscall_64+0xc6/0x1e0
[ 6512.687732][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6512.687732][   T73] 
[ 6512.689771][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6512.689771][   T73]      netdev_get_by_index+0x5e/0x80
[ 6512.689771][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6512.689771][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6512.689771][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6512.689771][   T73]      ipv6_add_addr+0x411/0x2000
[ 6512.689771][   T73]      inet6_addr_add+0x30e/0xa40
[ 6512.689771][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6512.689771][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6512.689771][   T73]      netlink_rcv_skb+0x130/0x360
[ 6512.689771][   T73]      netlink_unicast+0x449/0x710
[ 6512.689771][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6512.689771][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6512.689771][   T73]      ___sys_sendmsg+0xee/0x170
[ 6512.689771][   T73]      __sys_sendmsg+0xcd/0x170
[ 6512.689771][   T73]      do_syscall_64+0xc6/0x1e0
[ 6512.689771][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6512.689771][   T73] 
[ 6512.691812][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6512.691812][   T73]      netdev_get_by_index+0x5e/0x80
[ 6512.691812][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6512.691812][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6512.691812][   T73]      ip6_route_add+0x1c/0x140
[ 6512.691812][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6512.691812][   T73]      addrconf_add_dev+0xe2/0x170
[ 6512.691812][   T73]      inet6_addr_add+0x12f/0xa40
[ 6512.691812][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6512.691812][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6512.691812][   T73]      netlink_rcv_skb+0x130/0x360
[ 6512.691812][   T73]      netlink_unicast+0x449/0x710
[ 6512.691812][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6512.691812][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6512.691812][   T73]      ___sys_sendmsg+0xee/0x170
[ 6512.691812][   T73]      __sys_sendmsg+0xcd/0x170
[ 6512.691812][   T73]      do_syscall_64+0xc6/0x1e0
[ 6512.691812][   T73] 
[ 6512.693790][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6512.693790][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6512.693790][   T73]      ipv6_find_idev+0x102/0x170
[ 6512.693790][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6512.693790][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6512.693790][   T73]      netlink_rcv_skb+0x130/0x360
[ 6512.693790][   T73]      netlink_unicast+0x449/0x710
[ 6512.693790][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6512.693790][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6512.693790][   T73]      ___sys_sendmsg+0xee/0x170
[ 6512.693790][   T73]      __sys_sendmsg+0xcd/0x170
[ 6512.693790][   T73]      do_syscall_64+0xc6/0x1e0
[ 6512.693790][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6512.693790][   T73] 
[ 6512.695354][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6512.695354][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6512.695354][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6512.695354][   T73]      ipv6_find_idev+0x102/0x170
[ 6512.695354][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6512.695354][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6512.695354][   T73]      netlink_rcv_skb+0x130/0x360
[ 6512.695354][   T73]      netlink_unicast+0x449/0x710
[ 6512.695354][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6512.695354][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6512.695354][   T73]      ___sys_sendmsg+0xee/0x170
[ 6512.695354][   T73]      __sys_sendmsg+0xcd/0x170
[ 6512.695354][   T73]      do_syscall_64+0xc6/0x1e0
[ 6512.695354][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6512.695354][   T73] 
[ 6512.697082][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6512.697363][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6512.697363][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6512.697363][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6512.697363][   T73]      fib6_nh_init+0xa22/0x1580
[ 6512.697363][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6512.697363][   T73]      ip6_route_add+0x1c/0x140
[ 6512.697363][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6512.697363][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6512.697363][   T73]      netlink_rcv_skb+0x130/0x360
[ 6512.697363][   T73]      netlink_unicast+0x449/0x710
[ 6512.697363][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6512.697363][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6512.697363][   T73]      ___sys_sendmsg+0xee/0x170
[ 6512.697363][   T73]      __sys_sendmsg+0xcd/0x170
[ 6512.697363][   T73]      do_syscall_64+0xc6/0x1e0
[ 6512.697363][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6512.697363][   T73] 
[ 6512.699461][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6512.699461][   T73]      dst_init+0x84/0x4a0
[ 6512.699461][   T73]      dst_alloc+0x97/0x150
[ 6512.699461][   T73]      ip6_dst_alloc+0x23/0x90
[ 6512.699461][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6512.699461][   T73]      ip6_pol_route+0x56f/0x840
[ 6512.699461][   T73]      fib6_rule_lookup+0x456/0x630
[ 6512.699461][   T73]      ip6_route_input+0x59c/0xa50
[ 6512.699461][   T73]      ipv6_rcv+0x397/0x810
[ 6512.699461][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6512.699461][   T73]      process_backlog+0x101/0x620
[ 6512.699461][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6512.699461][   T73]      net_rx_action+0x495/0xbe0
[ 6512.699461][   T73]      __do_softirq+0x1b5/0x7f6
[ 6512.699461][   T73] 
[ 6512.701366][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6512.701366][   T73]      netdev_get_by_index+0x5e/0x80
[ 6512.701366][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6512.701366][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6512.701366][   T73]      ip6_route_add+0x1c/0x140
[ 6512.701366][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6512.701366][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6512.701366][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6512.701366][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6512.701366][   T73]      netlink_rcv_skb+0x130/0x360
[ 6512.701366][   T73]      netlink_unicast+0x449/0x710
[ 6512.701366][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6512.701366][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6512.701366][   T73]      ___sys_sendmsg+0xee/0x170
[ 6512.701366][   T73]      __sys_sendmsg+0xcd/0x170
[ 6512.701366][   T73]      do_syscall_64+0xc6/0x1e0
[ 6512.701366][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6512.701366][   T73] 
[ 6512.703655][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6512.703655][   T73]      netdev_get_by_index+0x5e/0x80
[ 6512.703655][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6512.703655][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6512.703655][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6512.703655][   T73]      ipv6_add_addr+0x411/0x2000
[ 6512.703655][   T73]      inet6_addr_add+0x30e/0xa40
[ 6512.703655][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6512.703655][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6512.703655][   T73]      netlink_rcv_skb+0x130/0x360
[ 6512.703655][   T73]      netlink_unicast+0x449/0x710
[ 6512.703655][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6512.703655][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6512.703655][   T73]      ___sys_sendmsg+0xee/0x170
[ 6512.703655][   T73]      __sys_sendmsg+0xcd/0x170
[ 6512.703655][   T73]      do_syscall_64+0xc6/0x1e0
[ 6512.703655][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6512.703655][   T73] 
[ 6512.705945][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6512.705945][   T73]      netdev_get_by_index+0x5e/0x80
[ 6512.705945][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6512.705945][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6512.705945][   T73]      ip6_route_add+0x1c/0x140
[ 6512.705945][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6512.705945][   T73]      addrconf_add_dev+0xe2/0x170
[ 6512.705945][   T73]      inet6_addr_add+0x12f/0xa40
[ 6512.705945][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6512.705945][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6512.705945][   T73]      netlink_rcv_skb+0x130/0x360
[ 6512.705945][   T73]      netlink_unicast+0x449/0x710
[ 6512.705945][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6512.705945][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6512.705945][   T73]      ___sys_sendmsg+0xee/0x170
[ 6512.705945][   T73]      __sys_sendmsg+0xcd/0x170
[ 6512.705945][   T73]      do_syscall_64+0xc6/0x1e0
[ 6512.705945][   T73] 
[ 6512.708171][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6512.708171][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6512.708171][   T73]      ipv6_find_idev+0x102/0x170
[ 6512.708171][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6512.708171][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6512.708171][   T73]      netlink_rcv_skb+0x130/0x360
[ 6512.708171][   T73]      netlink_unicast+0x449/0x710
[ 6512.708171][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6512.708171][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6512.708171][   T73]      ___sys_sendmsg+0xee/0x170
[ 6512.708171][   T73]      __sys_sendmsg+0xcd/0x170
[ 6512.708171][   T73]      do_syscall_64+0xc6/0x1e0
[ 6512.708171][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6512.708171][   T73] 
[ 6512.709973][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6512.709973][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6512.709973][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6512.709973][   T73]      ipv6_find_idev+0x102/0x170
[ 6512.709973][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6512.709973][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6512.709973][   T73]      netlink_rcv_skb+0x130/0x360
[ 6512.709973][   T73]      netlink_unicast+0x449/0x710
[ 6512.709973][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6512.709973][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6512.709973][   T73]      ___sys_sendmsg+0xee/0x170
[ 6512.709973][   T73]      __sys_sendmsg+0xcd/0x170
[ 6512.709973][   T73]      do_syscall_64+0xc6/0x1e0
[ 6512.709973][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6512.709973][   T73] 
[ 6512.711885][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6512.712161][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6512.712161][   T73]      netdev_get_by_index+0x5e/0x80
[ 6512.712161][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6512.712161][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6512.712161][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6512.712161][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6512.712161][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6512.712161][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6512.712161][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6512.712161][   T73]      addrconf_dad_begin+0x310/0x670
[ 6512.712161][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6512.712161][   T73]      process_one_work+0x84d/0x18a0
[ 6512.712161][   T73]      worker_thread+0x587/0xd30
[ 6512.712161][   T73]      kthread+0x28a/0x350
[ 6512.712161][   T73]      ret_from_fork+0x31/0x70
[ 6512.712161][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6512.712161][   T73] 
[ 6512.714341][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6512.714341][   T73]      netdev_get_by_index+0x5e/0x80
[ 6512.714341][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6512.714341][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6512.714341][   T73]      ip6_route_add+0x1c/0x140
[ 6512.714341][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6512.714341][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6512.714341][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6512.714341][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6512.714341][   T73]      netlink_rcv_skb+0x130/0x360
[ 6512.714341][   T73]      netlink_unicast+0x449/0x710
[ 6512.714341][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6512.714341][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6512.714341][   T73]      ___sys_sendmsg+0xee/0x170
[ 6512.714341][   T73]      __sys_sendmsg+0xcd/0x170
[ 6512.714341][   T73]      do_syscall_64+0xc6/0x1e0
[ 6512.714341][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6512.714341][   T73] 
[ 6512.716638][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6512.716638][   T73]      netdev_get_by_index+0x5e/0x80
[ 6512.716638][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6512.716638][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6512.716638][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6512.716638][   T73]      ipv6_add_addr+0x411/0x2000
[ 6512.716638][   T73]      inet6_addr_add+0x30e/0xa40
[ 6512.716638][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6512.716638][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6512.716638][   T73]      netlink_rcv_skb+0x130/0x360
[ 6512.716638][   T73]      netlink_unicast+0x449/0x710
[ 6512.716638][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6512.716638][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6512.716638][   T73]      ___sys_sendmsg+0xee/0x170
[ 6512.716638][   T73]      __sys_sendmsg+0xcd/0x170
[ 6512.716638][   T73]      do_syscall_64+0xc6/0x1e0
[ 6512.716638][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6512.716638][   T73] 
[ 6512.718980][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6512.718980][   T73]      netdev_get_by_index+0x5e/0x80
[ 6512.718980][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6512.718980][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6512.718980][   T73]      ip6_route_add+0x1c/0x140
[ 6512.718980][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6512.718980][   T73]      addrconf_add_dev+0xe2/0x170
[ 6512.718980][   T73]      inet6_addr_add+0x12f/0xa40
[ 6512.718980][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6512.718980][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6512.718980][   T73]      netlink_rcv_skb+0x130/0x360
[ 6512.718980][   T73]      netlink_unicast+0x449/0x710
[ 6512.718980][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6512.718980][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6512.718980][   T73]      ___sys_sendmsg+0xee/0x170
[ 6512.718980][   T73]      __sys_sendmsg+0xcd/0x170
[ 6512.718980][   T73]      do_syscall_64+0xc6/0x1e0
[ 6512.718980][   T73] 
[ 6512.721167][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6512.721167][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6512.721167][   T73]      ipv6_find_idev+0x102/0x170
[ 6512.721167][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6512.721167][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6512.721167][   T73]      netlink_rcv_skb+0x130/0x360
[ 6512.721167][   T73]      netlink_unicast+0x449/0x710
[ 6512.721167][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6512.721167][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6512.721167][   T73]      ___sys_sendmsg+0xee/0x170
[ 6512.721167][   T73]      __sys_sendmsg+0xcd/0x170
[ 6512.721167][   T73]      do_syscall_64+0xc6/0x1e0
[ 6512.721167][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6512.721167][   T73] 
[ 6512.722918][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6512.722918][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6512.722918][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6512.722918][   T73]      ipv6_find_idev+0x102/0x170
[ 6512.722918][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6512.722918][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6512.722918][   T73]      netlink_rcv_skb+0x130/0x360
[ 6512.722918][   T73]      netlink_unicast+0x449/0x710
[ 6512.722918][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6512.722918][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6512.722918][   T73]      ___sys_sendmsg+0xee/0x170
[ 6512.722918][   T73]      __sys_sendmsg+0xcd/0x170
[ 6512.722918][   T73]      do_syscall_64+0xc6/0x1e0
[ 6512.722918][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6512.722918][   T73] 
[ 6522.775752][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6522.776169][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6522.776169][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6522.776169][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6522.776169][   T73]      fib6_nh_init+0xa22/0x1580
[ 6522.776169][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6522.776169][   T73]      ip6_route_add+0x1c/0x140
[ 6522.776169][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6522.776169][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6522.776169][   T73]      netlink_rcv_skb+0x130/0x360
[ 6522.776169][   T73]      netlink_unicast+0x449/0x710
[ 6522.776169][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6522.776169][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6522.776169][   T73]      ___sys_sendmsg+0xee/0x170
[ 6522.776169][   T73]      __sys_sendmsg+0xcd/0x170
[ 6522.776169][   T73]      do_syscall_64+0xc6/0x1e0
[ 6522.776169][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6522.776169][   T73] 
[ 6522.778150][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6522.778150][   T73]      dst_init+0x84/0x4a0
[ 6522.778150][   T73]      dst_alloc+0x97/0x150
[ 6522.778150][   T73]      ip6_dst_alloc+0x23/0x90
[ 6522.778150][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6522.778150][   T73]      ip6_pol_route+0x56f/0x840
[ 6522.778150][   T73]      fib6_rule_lookup+0x456/0x630
[ 6522.778150][   T73]      ip6_route_input+0x59c/0xa50
[ 6522.778150][   T73]      ipv6_rcv+0x397/0x810
[ 6522.778150][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6522.778150][   T73]      process_backlog+0x101/0x620
[ 6522.778150][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6522.778150][   T73]      net_rx_action+0x495/0xbe0
[ 6522.778150][   T73]      __do_softirq+0x1b5/0x7f6
[ 6522.778150][   T73] 
[ 6522.779787][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6522.779787][   T73]      netdev_get_by_index+0x5e/0x80
[ 6522.779787][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6522.779787][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6522.779787][   T73]      ip6_route_add+0x1c/0x140
[ 6522.779787][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6522.779787][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6522.779787][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6522.779787][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6522.779787][   T73]      netlink_rcv_skb+0x130/0x360
[ 6522.779787][   T73]      netlink_unicast+0x449/0x710
[ 6522.779787][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6522.779787][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6522.779787][   T73]      ___sys_sendmsg+0xee/0x170
[ 6522.779787][   T73]      __sys_sendmsg+0xcd/0x170
[ 6522.779787][   T73]      do_syscall_64+0xc6/0x1e0
[ 6522.779787][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6522.779787][   T73] 
[ 6522.781781][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6522.781781][   T73]      netdev_get_by_index+0x5e/0x80
[ 6522.781781][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6522.781781][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6522.781781][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6522.781781][   T73]      ipv6_add_addr+0x411/0x2000
[ 6522.781781][   T73]      inet6_addr_add+0x30e/0xa40
[ 6522.781781][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6522.781781][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6522.781781][   T73]      netlink_rcv_skb+0x130/0x360
[ 6522.781781][   T73]      netlink_unicast+0x449/0x710
[ 6522.781781][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6522.781781][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6522.781781][   T73]      ___sys_sendmsg+0xee/0x170
[ 6522.781781][   T73]      __sys_sendmsg+0xcd/0x170
[ 6522.781781][   T73]      do_syscall_64+0xc6/0x1e0
[ 6522.781781][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6522.781781][   T73] 
[ 6522.783766][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6522.783766][   T73]      netdev_get_by_index+0x5e/0x80
[ 6522.783766][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6522.783766][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6522.783766][   T73]      ip6_route_add+0x1c/0x140
[ 6522.783766][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6522.783766][   T73]      addrconf_add_dev+0xe2/0x170
[ 6522.783766][   T73]      inet6_addr_add+0x12f/0xa40
[ 6522.783766][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6522.783766][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6522.783766][   T73]      netlink_rcv_skb+0x130/0x360
[ 6522.783766][   T73]      netlink_unicast+0x449/0x710
[ 6522.783766][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6522.783766][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6522.783766][   T73]      ___sys_sendmsg+0xee/0x170
[ 6522.783766][   T73]      __sys_sendmsg+0xcd/0x170
[ 6522.783766][   T73]      do_syscall_64+0xc6/0x1e0
[ 6522.783766][   T73] 
[ 6522.785757][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6522.785757][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6522.785757][   T73]      ipv6_find_idev+0x102/0x170
[ 6522.785757][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6522.785757][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6522.785757][   T73]      netlink_rcv_skb+0x130/0x360
[ 6522.785757][   T73]      netlink_unicast+0x449/0x710
[ 6522.785757][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6522.785757][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6522.785757][   T73]      ___sys_sendmsg+0xee/0x170
[ 6522.785757][   T73]      __sys_sendmsg+0xcd/0x170
[ 6522.785757][   T73]      do_syscall_64+0xc6/0x1e0
[ 6522.785757][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6522.785757][   T73] 
[ 6522.787290][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6522.787290][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6522.787290][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6522.787290][   T73]      ipv6_find_idev+0x102/0x170
[ 6522.787290][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6522.787290][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6522.787290][   T73]      netlink_rcv_skb+0x130/0x360
[ 6522.787290][   T73]      netlink_unicast+0x449/0x710
[ 6522.787290][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6522.787290][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6522.787290][   T73]      ___sys_sendmsg+0xee/0x170
[ 6522.787290][   T73]      __sys_sendmsg+0xcd/0x170
[ 6522.787290][   T73]      do_syscall_64+0xc6/0x1e0
[ 6522.787290][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6522.787290][   T73] 
[ 6522.788967][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6522.789246][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6522.789246][   T73]      netdev_get_by_index+0x5e/0x80
[ 6522.789246][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6522.789246][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6522.789246][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6522.789246][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6522.789246][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6522.789246][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6522.789246][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6522.789246][   T73]      addrconf_dad_begin+0x310/0x670
[ 6522.789246][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6522.789246][   T73]      process_one_work+0x84d/0x18a0
[ 6522.789246][   T73]      worker_thread+0x587/0xd30
[ 6522.789246][   T73]      kthread+0x28a/0x350
[ 6522.789246][   T73]      ret_from_fork+0x31/0x70
[ 6522.789246][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6522.789246][   T73] 
[ 6522.791168][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6522.791168][   T73]      netdev_get_by_index+0x5e/0x80
[ 6522.791168][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6522.791168][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6522.791168][   T73]      ip6_route_add+0x1c/0x140
[ 6522.791168][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6522.791168][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6522.791168][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6522.791168][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6522.791168][   T73]      netlink_rcv_skb+0x130/0x360
[ 6522.791168][   T73]      netlink_unicast+0x449/0x710
[ 6522.791168][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6522.791168][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6522.791168][   T73]      ___sys_sendmsg+0xee/0x170
[ 6522.791168][   T73]      __sys_sendmsg+0xcd/0x170
[ 6522.791168][   T73]      do_syscall_64+0xc6/0x1e0
[ 6522.791168][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6522.791168][   T73] 
[ 6522.793158][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6522.793158][   T73]      netdev_get_by_index+0x5e/0x80
[ 6522.793158][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6522.793158][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6522.793158][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6522.793158][   T73]      ipv6_add_addr+0x411/0x2000
[ 6522.793158][   T73]      inet6_addr_add+0x30e/0xa40
[ 6522.793158][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6522.793158][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6522.793158][   T73]      netlink_rcv_skb+0x130/0x360
[ 6522.793158][   T73]      netlink_unicast+0x449/0x710
[ 6522.793158][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6522.793158][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6522.793158][   T73]      ___sys_sendmsg+0xee/0x170
[ 6522.793158][   T73]      __sys_sendmsg+0xcd/0x170
[ 6522.793158][   T73]      do_syscall_64+0xc6/0x1e0
[ 6522.793158][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6522.793158][   T73] 
[ 6522.795166][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6522.795166][   T73]      netdev_get_by_index+0x5e/0x80
[ 6522.795166][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6522.795166][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6522.795166][   T73]      ip6_route_add+0x1c/0x140
[ 6522.795166][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6522.795166][   T73]      addrconf_add_dev+0xe2/0x170
[ 6522.795166][   T73]      inet6_addr_add+0x12f/0xa40
[ 6522.795166][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6522.795166][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6522.795166][   T73]      netlink_rcv_skb+0x130/0x360
[ 6522.795166][   T73]      netlink_unicast+0x449/0x710
[ 6522.795166][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6522.795166][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6522.795166][   T73]      ___sys_sendmsg+0xee/0x170
[ 6522.795166][   T73]      __sys_sendmsg+0xcd/0x170
[ 6522.795166][   T73]      do_syscall_64+0xc6/0x1e0
[ 6522.795166][   T73] 
[ 6522.797135][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6522.797135][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6522.797135][   T73]      ipv6_find_idev+0x102/0x170
[ 6522.797135][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6522.797135][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6522.797135][   T73]      netlink_rcv_skb+0x130/0x360
[ 6522.797135][   T73]      netlink_unicast+0x449/0x710
[ 6522.797135][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6522.797135][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6522.797135][   T73]      ___sys_sendmsg+0xee/0x170
[ 6522.797135][   T73]      __sys_sendmsg+0xcd/0x170
[ 6522.797135][   T73]      do_syscall_64+0xc6/0x1e0
[ 6522.797135][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6522.797135][   T73] 
[ 6522.798667][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6522.798667][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6522.798667][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6522.798667][   T73]      ipv6_find_idev+0x102/0x170
[ 6522.798667][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6522.798667][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6522.798667][   T73]      netlink_rcv_skb+0x130/0x360
[ 6522.798667][   T73]      netlink_unicast+0x449/0x710
[ 6522.798667][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6522.798667][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6522.798667][   T73]      ___sys_sendmsg+0xee/0x170
[ 6522.798667][   T73]      __sys_sendmsg+0xcd/0x170
[ 6522.798667][   T73]      do_syscall_64+0xc6/0x1e0
[ 6522.798667][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6522.798667][   T73] 
[ 6522.800340][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6522.800602][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6522.800602][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6522.800602][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6522.800602][   T73]      fib6_nh_init+0xa22/0x1580
[ 6522.800602][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6522.800602][   T73]      ip6_route_add+0x1c/0x140
[ 6522.800602][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6522.800602][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6522.800602][   T73]      netlink_rcv_skb+0x130/0x360
[ 6522.800602][   T73]      netlink_unicast+0x449/0x710
[ 6522.800602][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6522.800602][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6522.800602][   T73]      ___sys_sendmsg+0xee/0x170
[ 6522.800602][   T73]      __sys_sendmsg+0xcd/0x170
[ 6522.800602][   T73]      do_syscall_64+0xc6/0x1e0
[ 6522.800602][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6522.800602][   T73] 
[ 6522.802658][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6522.802658][   T73]      dst_init+0x84/0x4a0
[ 6522.802658][   T73]      dst_alloc+0x97/0x150
[ 6522.802658][   T73]      ip6_dst_alloc+0x23/0x90
[ 6522.802658][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6522.802658][   T73]      ip6_pol_route+0x56f/0x840
[ 6522.802658][   T73]      fib6_rule_lookup+0x456/0x630
[ 6522.802658][   T73]      ip6_route_input+0x59c/0xa50
[ 6522.802658][   T73]      ipv6_rcv+0x397/0x810
[ 6522.802658][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6522.802658][   T73]      process_backlog+0x101/0x620
[ 6522.802658][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6522.802658][   T73]      net_rx_action+0x495/0xbe0
[ 6522.802658][   T73]      __do_softirq+0x1b5/0x7f6
[ 6522.802658][   T73] 
[ 6522.804546][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6522.804546][   T73]      netdev_get_by_index+0x5e/0x80
[ 6522.804546][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6522.804546][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6522.804546][   T73]      ip6_route_add+0x1c/0x140
[ 6522.804546][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6522.804546][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6522.804546][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6522.804546][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6522.804546][   T73]      netlink_rcv_skb+0x130/0x360
[ 6522.804546][   T73]      netlink_unicast+0x449/0x710
[ 6522.804546][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6522.804546][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6522.804546][   T73]      ___sys_sendmsg+0xee/0x170
[ 6522.804546][   T73]      __sys_sendmsg+0xcd/0x170
[ 6522.804546][   T73]      do_syscall_64+0xc6/0x1e0
[ 6522.804546][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6522.804546][   T73] 
[ 6522.806772][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6522.806772][   T73]      netdev_get_by_index+0x5e/0x80
[ 6522.806772][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6522.806772][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6522.806772][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6522.806772][   T73]      ipv6_add_addr+0x411/0x2000
[ 6522.806772][   T73]      inet6_addr_add+0x30e/0xa40
[ 6522.806772][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6522.806772][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6522.806772][   T73]      netlink_rcv_skb+0x130/0x360
[ 6522.806772][   T73]      netlink_unicast+0x449/0x710
[ 6522.806772][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6522.806772][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6522.806772][   T73]      ___sys_sendmsg+0xee/0x170
[ 6522.806772][   T73]      __sys_sendmsg+0xcd/0x170
[ 6522.806772][   T73]      do_syscall_64+0xc6/0x1e0
[ 6522.806772][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6522.806772][   T73] 
[ 6522.809019][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6522.809019][   T73]      netdev_get_by_index+0x5e/0x80
[ 6522.809019][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6522.809019][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6522.809019][   T73]      ip6_route_add+0x1c/0x140
[ 6522.809019][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6522.809019][   T73]      addrconf_add_dev+0xe2/0x170
[ 6522.809019][   T73]      inet6_addr_add+0x12f/0xa40
[ 6522.809019][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6522.809019][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6522.809019][   T73]      netlink_rcv_skb+0x130/0x360
[ 6522.809019][   T73]      netlink_unicast+0x449/0x710
[ 6522.809019][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6522.809019][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6522.809019][   T73]      ___sys_sendmsg+0xee/0x170
[ 6522.809019][   T73]      __sys_sendmsg+0xcd/0x170
[ 6522.809019][   T73]      do_syscall_64+0xc6/0x1e0
[ 6522.809019][   T73] 
[ 6522.811102][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6522.811102][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6522.811102][   T73]      ipv6_find_idev+0x102/0x170
[ 6522.811102][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6522.811102][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6522.811102][   T73]      netlink_rcv_skb+0x130/0x360
[ 6522.811102][   T73]      netlink_unicast+0x449/0x710
[ 6522.811102][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6522.811102][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6522.811102][   T73]      ___sys_sendmsg+0xee/0x170
[ 6522.811102][   T73]      __sys_sendmsg+0xcd/0x170
[ 6522.811102][   T73]      do_syscall_64+0xc6/0x1e0
[ 6522.811102][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6522.811102][   T73] 
[ 6522.812891][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6522.812891][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6522.812891][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6522.812891][   T73]      ipv6_find_idev+0x102/0x170
[ 6522.812891][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6522.812891][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6522.812891][   T73]      netlink_rcv_skb+0x130/0x360
[ 6522.812891][   T73]      netlink_unicast+0x449/0x710
[ 6522.812891][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6522.812891][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6522.812891][   T73]      ___sys_sendmsg+0xee/0x170
[ 6522.812891][   T73]      __sys_sendmsg+0xcd/0x170
[ 6522.812891][   T73]      do_syscall_64+0xc6/0x1e0
[ 6522.812891][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6522.812891][   T73] 
[ 6522.814832][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6522.815105][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6522.815105][   T73]      netdev_get_by_index+0x5e/0x80
[ 6522.815105][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6522.815105][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6522.815105][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6522.815105][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6522.815105][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6522.815105][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6522.815105][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6522.815105][   T73]      addrconf_dad_begin+0x310/0x670
[ 6522.815105][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6522.815105][   T73]      process_one_work+0x84d/0x18a0
[ 6522.815105][   T73]      worker_thread+0x587/0xd30
[ 6522.815105][   T73]      kthread+0x28a/0x350
[ 6522.815105][   T73]      ret_from_fork+0x31/0x70
[ 6522.815105][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6522.815105][   T73] 
[ 6522.817250][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6522.817250][   T73]      netdev_get_by_index+0x5e/0x80
[ 6522.817250][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6522.817250][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6522.817250][   T73]      ip6_route_add+0x1c/0x140
[ 6522.817250][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6522.817250][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6522.817250][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6522.817250][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6522.817250][   T73]      netlink_rcv_skb+0x130/0x360
[ 6522.817250][   T73]      netlink_unicast+0x449/0x710
[ 6522.817250][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6522.817250][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6522.817250][   T73]      ___sys_sendmsg+0xee/0x170
[ 6522.817250][   T73]      __sys_sendmsg+0xcd/0x170
[ 6522.817250][   T73]      do_syscall_64+0xc6/0x1e0
[ 6522.817250][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6522.817250][   T73] 
[ 6522.819468][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6522.819468][   T73]      netdev_get_by_index+0x5e/0x80
[ 6522.819468][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6522.819468][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6522.819468][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6522.819468][   T73]      ipv6_add_addr+0x411/0x2000
[ 6522.819468][   T73]      inet6_addr_add+0x30e/0xa40
[ 6522.819468][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6522.819468][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6522.819468][   T73]      netlink_rcv_skb+0x130/0x360
[ 6522.819468][   T73]      netlink_unicast+0x449/0x710
[ 6522.819468][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6522.819468][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6522.819468][   T73]      ___sys_sendmsg+0xee/0x170
[ 6522.819468][   T73]      __sys_sendmsg+0xcd/0x170
[ 6522.819468][   T73]      do_syscall_64+0xc6/0x1e0
[ 6522.819468][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6522.819468][   T73] 
[ 6522.821629][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6522.821629][   T73]      netdev_get_by_index+0x5e/0x80
[ 6522.821629][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6522.821629][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6522.821629][   T73]      ip6_route_add+0x1c/0x140
[ 6522.821629][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6522.821629][   T73]      addrconf_add_dev+0xe2/0x170
[ 6522.821629][   T73]      inet6_addr_add+0x12f/0xa40
[ 6522.821629][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6522.821629][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6522.821629][   T73]      netlink_rcv_skb+0x130/0x360
[ 6522.821629][   T73]      netlink_unicast+0x449/0x710
[ 6522.821629][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6522.821629][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6522.821629][   T73]      ___sys_sendmsg+0xee/0x170
[ 6522.821629][   T73]      __sys_sendmsg+0xcd/0x170
[ 6522.821629][   T73]      do_syscall_64+0xc6/0x1e0
[ 6522.821629][   T73] 
[ 6522.823879][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6522.823879][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6522.823879][   T73]      ipv6_find_idev+0x102/0x170
[ 6522.823879][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6522.823879][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6522.823879][   T73]      netlink_rcv_skb+0x130/0x360
[ 6522.823879][   T73]      netlink_unicast+0x449/0x710
[ 6522.823879][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6522.823879][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6522.823879][   T73]      ___sys_sendmsg+0xee/0x170
[ 6522.823879][   T73]      __sys_sendmsg+0xcd/0x170
[ 6522.823879][   T73]      do_syscall_64+0xc6/0x1e0
[ 6522.823879][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6522.823879][   T73] 
[ 6522.825603][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6522.825603][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6522.825603][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6522.825603][   T73]      ipv6_find_idev+0x102/0x170
[ 6522.825603][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6522.825603][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6522.825603][   T73]      netlink_rcv_skb+0x130/0x360
[ 6522.825603][   T73]      netlink_unicast+0x449/0x710
[ 6522.825603][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6522.825603][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6522.825603][   T73]      ___sys_sendmsg+0xee/0x170
[ 6522.825603][   T73]      __sys_sendmsg+0xcd/0x170
[ 6522.825603][   T73]      do_syscall_64+0xc6/0x1e0
[ 6522.825603][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6522.825603][   T73] 
[ 6532.839825][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6532.840292][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6532.840292][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6532.840292][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6532.840292][   T73]      fib6_nh_init+0xa22/0x1580
[ 6532.840292][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6532.840292][   T73]      ip6_route_add+0x1c/0x140
[ 6532.840292][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6532.840292][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6532.840292][   T73]      netlink_rcv_skb+0x130/0x360
[ 6532.840292][   T73]      netlink_unicast+0x449/0x710
[ 6532.840292][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6532.840292][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6532.840292][   T73]      ___sys_sendmsg+0xee/0x170
[ 6532.840292][   T73]      __sys_sendmsg+0xcd/0x170
[ 6532.840292][   T73]      do_syscall_64+0xc6/0x1e0
[ 6532.840292][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6532.840292][   T73] 
[ 6532.842205][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6532.842205][   T73]      dst_init+0x84/0x4a0
[ 6532.842205][   T73]      dst_alloc+0x97/0x150
[ 6532.842205][   T73]      ip6_dst_alloc+0x23/0x90
[ 6532.842205][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6532.842205][   T73]      ip6_pol_route+0x56f/0x840
[ 6532.842205][   T73]      fib6_rule_lookup+0x456/0x630
[ 6532.842205][   T73]      ip6_route_input+0x59c/0xa50
[ 6532.842205][   T73]      ipv6_rcv+0x397/0x810
[ 6532.842205][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6532.842205][   T73]      process_backlog+0x101/0x620
[ 6532.842205][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6532.842205][   T73]      net_rx_action+0x495/0xbe0
[ 6532.842205][   T73]      __do_softirq+0x1b5/0x7f6
[ 6532.842205][   T73] 
[ 6532.843850][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6532.843850][   T73]      netdev_get_by_index+0x5e/0x80
[ 6532.843850][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6532.843850][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6532.843850][   T73]      ip6_route_add+0x1c/0x140
[ 6532.843850][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6532.843850][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6532.843850][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6532.843850][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6532.843850][   T73]      netlink_rcv_skb+0x130/0x360
[ 6532.843850][   T73]      netlink_unicast+0x449/0x710
[ 6532.843850][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6532.843850][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6532.843850][   T73]      ___sys_sendmsg+0xee/0x170
[ 6532.843850][   T73]      __sys_sendmsg+0xcd/0x170
[ 6532.843850][   T73]      do_syscall_64+0xc6/0x1e0
[ 6532.843850][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6532.843850][   T73] 
[ 6532.845872][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6532.845872][   T73]      netdev_get_by_index+0x5e/0x80
[ 6532.845872][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6532.845872][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6532.845872][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6532.845872][   T73]      ipv6_add_addr+0x411/0x2000
[ 6532.845872][   T73]      inet6_addr_add+0x30e/0xa40
[ 6532.845872][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6532.845872][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6532.845872][   T73]      netlink_rcv_skb+0x130/0x360
[ 6532.845872][   T73]      netlink_unicast+0x449/0x710
[ 6532.845872][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6532.845872][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6532.845872][   T73]      ___sys_sendmsg+0xee/0x170
[ 6532.845872][   T73]      __sys_sendmsg+0xcd/0x170
[ 6532.845872][   T73]      do_syscall_64+0xc6/0x1e0
[ 6532.845872][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6532.845872][   T73] 
[ 6532.847871][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6532.847871][   T73]      netdev_get_by_index+0x5e/0x80
[ 6532.847871][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6532.847871][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6532.847871][   T73]      ip6_route_add+0x1c/0x140
[ 6532.847871][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6532.847871][   T73]      addrconf_add_dev+0xe2/0x170
[ 6532.847871][   T73]      inet6_addr_add+0x12f/0xa40
[ 6532.847871][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6532.847871][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6532.847871][   T73]      netlink_rcv_skb+0x130/0x360
[ 6532.847871][   T73]      netlink_unicast+0x449/0x710
[ 6532.847871][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6532.847871][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6532.847871][   T73]      ___sys_sendmsg+0xee/0x170
[ 6532.847871][   T73]      __sys_sendmsg+0xcd/0x170
[ 6532.847871][   T73]      do_syscall_64+0xc6/0x1e0
[ 6532.847871][   T73] 
[ 6532.849846][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6532.849846][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6532.849846][   T73]      ipv6_find_idev+0x102/0x170
[ 6532.849846][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6532.849846][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6532.849846][   T73]      netlink_rcv_skb+0x130/0x360
[ 6532.849846][   T73]      netlink_unicast+0x449/0x710
[ 6532.849846][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6532.849846][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6532.849846][   T73]      ___sys_sendmsg+0xee/0x170
[ 6532.849846][   T73]      __sys_sendmsg+0xcd/0x170
[ 6532.849846][   T73]      do_syscall_64+0xc6/0x1e0
[ 6532.849846][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6532.849846][   T73] 
[ 6532.851394][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6532.851394][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6532.851394][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6532.851394][   T73]      ipv6_find_idev+0x102/0x170
[ 6532.851394][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6532.851394][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6532.851394][   T73]      netlink_rcv_skb+0x130/0x360
[ 6532.851394][   T73]      netlink_unicast+0x449/0x710
[ 6532.851394][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6532.851394][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6532.851394][   T73]      ___sys_sendmsg+0xee/0x170
[ 6532.851394][   T73]      __sys_sendmsg+0xcd/0x170
[ 6532.851394][   T73]      do_syscall_64+0xc6/0x1e0
[ 6532.851394][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6532.851394][   T73] 
[ 6532.853099][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6532.853374][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6532.853374][   T73]      netdev_get_by_index+0x5e/0x80
[ 6532.853374][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6532.853374][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6532.853374][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6532.853374][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6532.853374][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6532.853374][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6532.853374][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6532.853374][   T73]      addrconf_dad_begin+0x310/0x670
[ 6532.853374][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6532.853374][   T73]      process_one_work+0x84d/0x18a0
[ 6532.853374][   T73]      worker_thread+0x587/0xd30
[ 6532.853374][   T73]      kthread+0x28a/0x350
[ 6532.853374][   T73]      ret_from_fork+0x31/0x70
[ 6532.853374][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6532.853374][   T73] 
[ 6532.855308][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6532.855308][   T73]      netdev_get_by_index+0x5e/0x80
[ 6532.855308][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6532.855308][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6532.855308][   T73]      ip6_route_add+0x1c/0x140
[ 6532.855308][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6532.855308][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6532.855308][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6532.855308][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6532.855308][   T73]      netlink_rcv_skb+0x130/0x360
[ 6532.855308][   T73]      netlink_unicast+0x449/0x710
[ 6532.855308][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6532.855308][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6532.855308][   T73]      ___sys_sendmsg+0xee/0x170
[ 6532.855308][   T73]      __sys_sendmsg+0xcd/0x170
[ 6532.855308][   T73]      do_syscall_64+0xc6/0x1e0
[ 6532.855308][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6532.855308][   T73] 
[ 6532.857311][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6532.857311][   T73]      netdev_get_by_index+0x5e/0x80
[ 6532.857311][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6532.857311][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6532.857311][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6532.857311][   T73]      ipv6_add_addr+0x411/0x2000
[ 6532.857311][   T73]      inet6_addr_add+0x30e/0xa40
[ 6532.857311][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6532.857311][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6532.857311][   T73]      netlink_rcv_skb+0x130/0x360
[ 6532.857311][   T73]      netlink_unicast+0x449/0x710
[ 6532.857311][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6532.857311][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6532.857311][   T73]      ___sys_sendmsg+0xee/0x170
[ 6532.857311][   T73]      __sys_sendmsg+0xcd/0x170
[ 6532.857311][   T73]      do_syscall_64+0xc6/0x1e0
[ 6532.857311][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6532.857311][   T73] 
[ 6532.859419][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6532.859419][   T73]      netdev_get_by_index+0x5e/0x80
[ 6532.859419][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6532.859419][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6532.859419][   T73]      ip6_route_add+0x1c/0x140
[ 6532.859419][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6532.859419][   T73]      addrconf_add_dev+0xe2/0x170
[ 6532.859419][   T73]      inet6_addr_add+0x12f/0xa40
[ 6532.859419][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6532.859419][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6532.859419][   T73]      netlink_rcv_skb+0x130/0x360
[ 6532.859419][   T73]      netlink_unicast+0x449/0x710
[ 6532.859419][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6532.859419][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6532.859419][   T73]      ___sys_sendmsg+0xee/0x170
[ 6532.859419][   T73]      __sys_sendmsg+0xcd/0x170
[ 6532.859419][   T73]      do_syscall_64+0xc6/0x1e0
[ 6532.859419][   T73] 
[ 6532.861392][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6532.861392][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6532.861392][   T73]      ipv6_find_idev+0x102/0x170
[ 6532.861392][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6532.861392][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6532.861392][   T73]      netlink_rcv_skb+0x130/0x360
[ 6532.861392][   T73]      netlink_unicast+0x449/0x710
[ 6532.861392][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6532.861392][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6532.861392][   T73]      ___sys_sendmsg+0xee/0x170
[ 6532.861392][   T73]      __sys_sendmsg+0xcd/0x170
[ 6532.861392][   T73]      do_syscall_64+0xc6/0x1e0
[ 6532.861392][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6532.861392][   T73] 
[ 6532.862932][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6532.862932][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6532.862932][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6532.862932][   T73]      ipv6_find_idev+0x102/0x170
[ 6532.862932][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6532.862932][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6532.862932][   T73]      netlink_rcv_skb+0x130/0x360
[ 6532.862932][   T73]      netlink_unicast+0x449/0x710
[ 6532.862932][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6532.862932][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6532.862932][   T73]      ___sys_sendmsg+0xee/0x170
[ 6532.862932][   T73]      __sys_sendmsg+0xcd/0x170
[ 6532.862932][   T73]      do_syscall_64+0xc6/0x1e0
[ 6532.862932][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6532.862932][   T73] 
[ 6532.864652][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6532.864920][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6532.864920][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6532.864920][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6532.864920][   T73]      fib6_nh_init+0xa22/0x1580
[ 6532.864920][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6532.864920][   T73]      ip6_route_add+0x1c/0x140
[ 6532.864920][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6532.864920][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6532.864920][   T73]      netlink_rcv_skb+0x130/0x360
[ 6532.864920][   T73]      netlink_unicast+0x449/0x710
[ 6532.864920][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6532.864920][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6532.864920][   T73]      ___sys_sendmsg+0xee/0x170
[ 6532.864920][   T73]      __sys_sendmsg+0xcd/0x170
[ 6532.864920][   T73]      do_syscall_64+0xc6/0x1e0
[ 6532.864920][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6532.864920][   T73] 
[ 6532.867003][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6532.867003][   T73]      dst_init+0x84/0x4a0
[ 6532.867003][   T73]      dst_alloc+0x97/0x150
[ 6532.867003][   T73]      ip6_dst_alloc+0x23/0x90
[ 6532.867003][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6532.867003][   T73]      ip6_pol_route+0x56f/0x840
[ 6532.867003][   T73]      fib6_rule_lookup+0x456/0x630
[ 6532.867003][   T73]      ip6_route_input+0x59c/0xa50
[ 6532.867003][   T73]      ipv6_rcv+0x397/0x810
[ 6532.867003][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6532.867003][   T73]      process_backlog+0x101/0x620
[ 6532.867003][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6532.867003][   T73]      net_rx_action+0x495/0xbe0
[ 6532.867003][   T73]      __do_softirq+0x1b5/0x7f6
[ 6532.867003][   T73] 
[ 6532.868831][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6532.868831][   T73]      netdev_get_by_index+0x5e/0x80
[ 6532.868831][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6532.868831][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6532.868831][   T73]      ip6_route_add+0x1c/0x140
[ 6532.868831][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6532.868831][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6532.868831][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6532.868831][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6532.868831][   T73]      netlink_rcv_skb+0x130/0x360
[ 6532.868831][   T73]      netlink_unicast+0x449/0x710
[ 6532.868831][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6532.868831][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6532.868831][   T73]      ___sys_sendmsg+0xee/0x170
[ 6532.868831][   T73]      __sys_sendmsg+0xcd/0x170
[ 6532.868831][   T73]      do_syscall_64+0xc6/0x1e0
[ 6532.868831][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6532.868831][   T73] 
[ 6532.871080][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6532.871080][   T73]      netdev_get_by_index+0x5e/0x80
[ 6532.871080][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6532.871080][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6532.871080][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6532.871080][   T73]      ipv6_add_addr+0x411/0x2000
[ 6532.871080][   T73]      inet6_addr_add+0x30e/0xa40
[ 6532.871080][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6532.871080][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6532.871080][   T73]      netlink_rcv_skb+0x130/0x360
[ 6532.871080][   T73]      netlink_unicast+0x449/0x710
[ 6532.871080][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6532.871080][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6532.871080][   T73]      ___sys_sendmsg+0xee/0x170
[ 6532.871080][   T73]      __sys_sendmsg+0xcd/0x170
[ 6532.871080][   T73]      do_syscall_64+0xc6/0x1e0
[ 6532.871080][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6532.871080][   T73] 
[ 6532.873351][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6532.873351][   T73]      netdev_get_by_index+0x5e/0x80
[ 6532.873351][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6532.873351][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6532.873351][   T73]      ip6_route_add+0x1c/0x140
[ 6532.873351][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6532.873351][   T73]      addrconf_add_dev+0xe2/0x170
[ 6532.873351][   T73]      inet6_addr_add+0x12f/0xa40
[ 6532.873351][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6532.873351][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6532.873351][   T73]      netlink_rcv_skb+0x130/0x360
[ 6532.873351][   T73]      netlink_unicast+0x449/0x710
[ 6532.873351][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6532.873351][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6532.873351][   T73]      ___sys_sendmsg+0xee/0x170
[ 6532.873351][   T73]      __sys_sendmsg+0xcd/0x170
[ 6532.873351][   T73]      do_syscall_64+0xc6/0x1e0
[ 6532.873351][   T73] 
[ 6532.875582][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6532.875582][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6532.875582][   T73]      ipv6_find_idev+0x102/0x170
[ 6532.875582][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6532.875582][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6532.875582][   T73]      netlink_rcv_skb+0x130/0x360
[ 6532.875582][   T73]      netlink_unicast+0x449/0x710
[ 6532.875582][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6532.875582][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6532.875582][   T73]      ___sys_sendmsg+0xee/0x170
[ 6532.875582][   T73]      __sys_sendmsg+0xcd/0x170
[ 6532.875582][   T73]      do_syscall_64+0xc6/0x1e0
[ 6532.875582][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6532.875582][   T73] 
[ 6532.877307][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6532.877307][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6532.877307][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6532.877307][   T73]      ipv6_find_idev+0x102/0x170
[ 6532.877307][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6532.877307][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6532.877307][   T73]      netlink_rcv_skb+0x130/0x360
[ 6532.877307][   T73]      netlink_unicast+0x449/0x710
[ 6532.877307][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6532.877307][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6532.877307][   T73]      ___sys_sendmsg+0xee/0x170
[ 6532.877307][   T73]      __sys_sendmsg+0xcd/0x170
[ 6532.877307][   T73]      do_syscall_64+0xc6/0x1e0
[ 6532.877307][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6532.877307][   T73] 
[ 6532.879228][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6532.879508][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6532.879508][   T73]      netdev_get_by_index+0x5e/0x80
[ 6532.879508][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6532.879508][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6532.879508][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6532.879508][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6532.879508][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6532.879508][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6532.879508][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6532.879508][   T73]      addrconf_dad_begin+0x310/0x670
[ 6532.879508][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6532.879508][   T73]      process_one_work+0x84d/0x18a0
[ 6532.879508][   T73]      worker_thread+0x587/0xd30
[ 6532.879508][   T73]      kthread+0x28a/0x350
[ 6532.879508][   T73]      ret_from_fork+0x31/0x70
[ 6532.879508][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6532.879508][   T73] 
[ 6532.881689][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6532.881689][   T73]      netdev_get_by_index+0x5e/0x80
[ 6532.881689][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6532.881689][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6532.881689][   T73]      ip6_route_add+0x1c/0x140
[ 6532.881689][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6532.881689][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6532.881689][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6532.881689][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6532.881689][   T73]      netlink_rcv_skb+0x130/0x360
[ 6532.881689][   T73]      netlink_unicast+0x449/0x710
[ 6532.881689][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6532.881689][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6532.881689][   T73]      ___sys_sendmsg+0xee/0x170
[ 6532.881689][   T73]      __sys_sendmsg+0xcd/0x170
[ 6532.881689][   T73]      do_syscall_64+0xc6/0x1e0
[ 6532.881689][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6532.881689][   T73] 
[ 6532.883933][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6532.883933][   T73]      netdev_get_by_index+0x5e/0x80
[ 6532.883933][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6532.883933][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6532.883933][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6532.883933][   T73]      ipv6_add_addr+0x411/0x2000
[ 6532.883933][   T73]      inet6_addr_add+0x30e/0xa40
[ 6532.883933][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6532.883933][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6532.883933][   T73]      netlink_rcv_skb+0x130/0x360
[ 6532.883933][   T73]      netlink_unicast+0x449/0x710
[ 6532.883933][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6532.883933][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6532.883933][   T73]      ___sys_sendmsg+0xee/0x170
[ 6532.883933][   T73]      __sys_sendmsg+0xcd/0x170
[ 6532.883933][   T73]      do_syscall_64+0xc6/0x1e0
[ 6532.883933][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6532.883933][   T73] 
[ 6532.886180][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6532.886180][   T73]      netdev_get_by_index+0x5e/0x80
[ 6532.886180][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6532.886180][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6532.886180][   T73]      ip6_route_add+0x1c/0x140
[ 6532.886180][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6532.886180][   T73]      addrconf_add_dev+0xe2/0x170
[ 6532.886180][   T73]      inet6_addr_add+0x12f/0xa40
[ 6532.886180][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6532.886180][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6532.886180][   T73]      netlink_rcv_skb+0x130/0x360
[ 6532.886180][   T73]      netlink_unicast+0x449/0x710
[ 6532.886180][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6532.886180][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6532.886180][   T73]      ___sys_sendmsg+0xee/0x170
[ 6532.886180][   T73]      __sys_sendmsg+0xcd/0x170
[ 6532.886180][   T73]      do_syscall_64+0xc6/0x1e0
[ 6532.886180][   T73] 
[ 6532.888392][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6532.888392][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6532.888392][   T73]      ipv6_find_idev+0x102/0x170
[ 6532.888392][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6532.888392][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6532.888392][   T73]      netlink_rcv_skb+0x130/0x360
[ 6532.888392][   T73]      netlink_unicast+0x449/0x710
[ 6532.888392][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6532.888392][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6532.888392][   T73]      ___sys_sendmsg+0xee/0x170
[ 6532.888392][   T73]      __sys_sendmsg+0xcd/0x170
[ 6532.888392][   T73]      do_syscall_64+0xc6/0x1e0
[ 6532.888392][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6532.888392][   T73] 
[ 6532.890115][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6532.890115][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6532.890115][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6532.890115][   T73]      ipv6_find_idev+0x102/0x170
[ 6532.890115][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6532.890115][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6532.890115][   T73]      netlink_rcv_skb+0x130/0x360
[ 6532.890115][   T73]      netlink_unicast+0x449/0x710
[ 6532.890115][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6532.890115][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6532.890115][   T73]      ___sys_sendmsg+0xee/0x170
[ 6532.890115][   T73]      __sys_sendmsg+0xcd/0x170
[ 6532.890115][   T73]      do_syscall_64+0xc6/0x1e0
[ 6532.890115][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6532.890115][   T73] 
[ 6543.143746][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6543.144158][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6543.144158][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6543.144158][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6543.144158][   T73]      fib6_nh_init+0xa22/0x1580
[ 6543.144158][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6543.144158][   T73]      ip6_route_add+0x1c/0x140
[ 6543.144158][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6543.144158][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6543.144158][   T73]      netlink_rcv_skb+0x130/0x360
[ 6543.144158][   T73]      netlink_unicast+0x449/0x710
[ 6543.144158][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6543.144158][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6543.144158][   T73]      ___sys_sendmsg+0xee/0x170
[ 6543.144158][   T73]      __sys_sendmsg+0xcd/0x170
[ 6543.144158][   T73]      do_syscall_64+0xc6/0x1e0
[ 6543.144158][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6543.144158][   T73] 
[ 6543.146074][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6543.146074][   T73]      dst_init+0x84/0x4a0
[ 6543.146074][   T73]      dst_alloc+0x97/0x150
[ 6543.146074][   T73]      ip6_dst_alloc+0x23/0x90
[ 6543.146074][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6543.146074][   T73]      ip6_pol_route+0x56f/0x840
[ 6543.146074][   T73]      fib6_rule_lookup+0x456/0x630
[ 6543.146074][   T73]      ip6_route_input+0x59c/0xa50
[ 6543.146074][   T73]      ipv6_rcv+0x397/0x810
[ 6543.146074][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6543.146074][   T73]      process_backlog+0x101/0x620
[ 6543.146074][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6543.146074][   T73]      net_rx_action+0x495/0xbe0
[ 6543.146074][   T73]      __do_softirq+0x1b5/0x7f6
[ 6543.146074][   T73] 
[ 6543.147730][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6543.147730][   T73]      netdev_get_by_index+0x5e/0x80
[ 6543.147730][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6543.147730][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6543.147730][   T73]      ip6_route_add+0x1c/0x140
[ 6543.147730][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6543.147730][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6543.147730][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6543.147730][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6543.147730][   T73]      netlink_rcv_skb+0x130/0x360
[ 6543.147730][   T73]      netlink_unicast+0x449/0x710
[ 6543.147730][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6543.147730][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6543.147730][   T73]      ___sys_sendmsg+0xee/0x170
[ 6543.147730][   T73]      __sys_sendmsg+0xcd/0x170
[ 6543.147730][   T73]      do_syscall_64+0xc6/0x1e0
[ 6543.147730][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6543.147730][   T73] 
[ 6543.149751][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6543.149751][   T73]      netdev_get_by_index+0x5e/0x80
[ 6543.149751][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6543.149751][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6543.149751][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6543.149751][   T73]      ipv6_add_addr+0x411/0x2000
[ 6543.149751][   T73]      inet6_addr_add+0x30e/0xa40
[ 6543.149751][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6543.149751][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6543.149751][   T73]      netlink_rcv_skb+0x130/0x360
[ 6543.149751][   T73]      netlink_unicast+0x449/0x710
[ 6543.149751][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6543.149751][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6543.149751][   T73]      ___sys_sendmsg+0xee/0x170
[ 6543.149751][   T73]      __sys_sendmsg+0xcd/0x170
[ 6543.149751][   T73]      do_syscall_64+0xc6/0x1e0
[ 6543.149751][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6543.149751][   T73] 
[ 6543.151768][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6543.151768][   T73]      netdev_get_by_index+0x5e/0x80
[ 6543.151768][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6543.151768][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6543.151768][   T73]      ip6_route_add+0x1c/0x140
[ 6543.151768][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6543.151768][   T73]      addrconf_add_dev+0xe2/0x170
[ 6543.151768][   T73]      inet6_addr_add+0x12f/0xa40
[ 6543.151768][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6543.151768][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6543.151768][   T73]      netlink_rcv_skb+0x130/0x360
[ 6543.151768][   T73]      netlink_unicast+0x449/0x710
[ 6543.151768][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6543.151768][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6543.151768][   T73]      ___sys_sendmsg+0xee/0x170
[ 6543.151768][   T73]      __sys_sendmsg+0xcd/0x170
[ 6543.151768][   T73]      do_syscall_64+0xc6/0x1e0
[ 6543.151768][   T73] 
[ 6543.153750][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6543.153750][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6543.153750][   T73]      ipv6_find_idev+0x102/0x170
[ 6543.153750][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6543.153750][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6543.153750][   T73]      netlink_rcv_skb+0x130/0x360
[ 6543.153750][   T73]      netlink_unicast+0x449/0x710
[ 6543.153750][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6543.153750][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6543.153750][   T73]      ___sys_sendmsg+0xee/0x170
[ 6543.153750][   T73]      __sys_sendmsg+0xcd/0x170
[ 6543.153750][   T73]      do_syscall_64+0xc6/0x1e0
[ 6543.153750][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6543.153750][   T73] 
[ 6543.155312][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6543.155312][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6543.155312][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6543.155312][   T73]      ipv6_find_idev+0x102/0x170
[ 6543.155312][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6543.155312][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6543.155312][   T73]      netlink_rcv_skb+0x130/0x360
[ 6543.155312][   T73]      netlink_unicast+0x449/0x710
[ 6543.155312][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6543.155312][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6543.155312][   T73]      ___sys_sendmsg+0xee/0x170
[ 6543.155312][   T73]      __sys_sendmsg+0xcd/0x170
[ 6543.155312][   T73]      do_syscall_64+0xc6/0x1e0
[ 6543.155312][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6543.155312][   T73] 
[ 6543.157010][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6543.157288][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6543.157288][   T73]      netdev_get_by_index+0x5e/0x80
[ 6543.157288][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6543.157288][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6543.157288][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6543.157288][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6543.157288][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6543.157288][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6543.157288][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6543.157288][   T73]      addrconf_dad_begin+0x310/0x670
[ 6543.157288][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6543.157288][   T73]      process_one_work+0x84d/0x18a0
[ 6543.157288][   T73]      worker_thread+0x587/0xd30
[ 6543.157288][   T73]      kthread+0x28a/0x350
[ 6543.157288][   T73]      ret_from_fork+0x31/0x70
[ 6543.157288][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6543.157288][   T73] 
[ 6543.159219][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6543.159219][   T73]      netdev_get_by_index+0x5e/0x80
[ 6543.159219][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6543.159219][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6543.159219][   T73]      ip6_route_add+0x1c/0x140
[ 6543.159219][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6543.159219][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6543.159219][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6543.159219][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6543.159219][   T73]      netlink_rcv_skb+0x130/0x360
[ 6543.159219][   T73]      netlink_unicast+0x449/0x710
[ 6543.159219][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6543.159219][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6543.159219][   T73]      ___sys_sendmsg+0xee/0x170
[ 6543.159219][   T73]      __sys_sendmsg+0xcd/0x170
[ 6543.159219][   T73]      do_syscall_64+0xc6/0x1e0
[ 6543.159219][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6543.159219][   T73] 
[ 6543.161241][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6543.161241][   T73]      netdev_get_by_index+0x5e/0x80
[ 6543.161241][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6543.161241][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6543.161241][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6543.161241][   T73]      ipv6_add_addr+0x411/0x2000
[ 6543.161241][   T73]      inet6_addr_add+0x30e/0xa40
[ 6543.161241][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6543.161241][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6543.161241][   T73]      netlink_rcv_skb+0x130/0x360
[ 6543.161241][   T73]      netlink_unicast+0x449/0x710
[ 6543.161241][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6543.161241][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6543.161241][   T73]      ___sys_sendmsg+0xee/0x170
[ 6543.161241][   T73]      __sys_sendmsg+0xcd/0x170
[ 6543.161241][   T73]      do_syscall_64+0xc6/0x1e0
[ 6543.161241][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6543.161241][   T73] 
[ 6543.163252][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6543.163252][   T73]      netdev_get_by_index+0x5e/0x80
[ 6543.163252][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6543.163252][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6543.163252][   T73]      ip6_route_add+0x1c/0x140
[ 6543.163252][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6543.163252][   T73]      addrconf_add_dev+0xe2/0x170
[ 6543.163252][   T73]      inet6_addr_add+0x12f/0xa40
[ 6543.163252][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6543.163252][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6543.163252][   T73]      netlink_rcv_skb+0x130/0x360
[ 6543.163252][   T73]      netlink_unicast+0x449/0x710
[ 6543.163252][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6543.163252][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6543.163252][   T73]      ___sys_sendmsg+0xee/0x170
[ 6543.163252][   T73]      __sys_sendmsg+0xcd/0x170
[ 6543.163252][   T73]      do_syscall_64+0xc6/0x1e0
[ 6543.163252][   T73] 
[ 6543.165239][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6543.165239][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6543.165239][   T73]      ipv6_find_idev+0x102/0x170
[ 6543.165239][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6543.165239][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6543.165239][   T73]      netlink_rcv_skb+0x130/0x360
[ 6543.165239][   T73]      netlink_unicast+0x449/0x710
[ 6543.165239][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6543.165239][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6543.165239][   T73]      ___sys_sendmsg+0xee/0x170
[ 6543.165239][   T73]      __sys_sendmsg+0xcd/0x170
[ 6543.165239][   T73]      do_syscall_64+0xc6/0x1e0
[ 6543.165239][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6543.165239][   T73] 
[ 6543.166789][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6543.166789][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6543.166789][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6543.166789][   T73]      ipv6_find_idev+0x102/0x170
[ 6543.166789][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6543.166789][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6543.166789][   T73]      netlink_rcv_skb+0x130/0x360
[ 6543.166789][   T73]      netlink_unicast+0x449/0x710
[ 6543.166789][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6543.166789][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6543.166789][   T73]      ___sys_sendmsg+0xee/0x170
[ 6543.166789][   T73]      __sys_sendmsg+0xcd/0x170
[ 6543.166789][   T73]      do_syscall_64+0xc6/0x1e0
[ 6543.166789][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6543.166789][   T73] 
[ 6543.168498][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6543.168796][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6543.168796][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6543.168796][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6543.168796][   T73]      fib6_nh_init+0xa22/0x1580
[ 6543.168796][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6543.168796][   T73]      ip6_route_add+0x1c/0x140
[ 6543.168796][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6543.168796][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6543.168796][   T73]      netlink_rcv_skb+0x130/0x360
[ 6543.168796][   T73]      netlink_unicast+0x449/0x710
[ 6543.168796][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6543.168796][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6543.168796][   T73]      ___sys_sendmsg+0xee/0x170
[ 6543.168796][   T73]      __sys_sendmsg+0xcd/0x170
[ 6543.168796][   T73]      do_syscall_64+0xc6/0x1e0
[ 6543.168796][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6543.168796][   T73] 
[ 6543.170887][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6543.170887][   T73]      dst_init+0x84/0x4a0
[ 6543.170887][   T73]      dst_alloc+0x97/0x150
[ 6543.170887][   T73]      ip6_dst_alloc+0x23/0x90
[ 6543.170887][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6543.170887][   T73]      ip6_pol_route+0x56f/0x840
[ 6543.170887][   T73]      fib6_rule_lookup+0x456/0x630
[ 6543.170887][   T73]      ip6_route_input+0x59c/0xa50
[ 6543.170887][   T73]      ipv6_rcv+0x397/0x810
[ 6543.170887][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6543.170887][   T73]      process_backlog+0x101/0x620
[ 6543.170887][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6543.170887][   T73]      net_rx_action+0x495/0xbe0
[ 6543.170887][   T73]      __do_softirq+0x1b5/0x7f6
[ 6543.170887][   T73] 
[ 6543.172781][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6543.172781][   T73]      netdev_get_by_index+0x5e/0x80
[ 6543.172781][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6543.172781][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6543.172781][   T73]      ip6_route_add+0x1c/0x140
[ 6543.172781][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6543.172781][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6543.172781][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6543.172781][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6543.172781][   T73]      netlink_rcv_skb+0x130/0x360
[ 6543.172781][   T73]      netlink_unicast+0x449/0x710
[ 6543.172781][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6543.172781][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6543.172781][   T73]      ___sys_sendmsg+0xee/0x170
[ 6543.172781][   T73]      __sys_sendmsg+0xcd/0x170
[ 6543.172781][   T73]      do_syscall_64+0xc6/0x1e0
[ 6543.172781][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6543.172781][   T73] 
[ 6543.175062][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6543.175062][   T73]      netdev_get_by_index+0x5e/0x80
[ 6543.175062][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6543.175062][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6543.175062][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6543.175062][   T73]      ipv6_add_addr+0x411/0x2000
[ 6543.175062][   T73]      inet6_addr_add+0x30e/0xa40
[ 6543.175062][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6543.175062][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6543.175062][   T73]      netlink_rcv_skb+0x130/0x360
[ 6543.175062][   T73]      netlink_unicast+0x449/0x710
[ 6543.175062][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6543.175062][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6543.175062][   T73]      ___sys_sendmsg+0xee/0x170
[ 6543.175062][   T73]      __sys_sendmsg+0xcd/0x170
[ 6543.175062][   T73]      do_syscall_64+0xc6/0x1e0
[ 6543.175062][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6543.175062][   T73] 
[ 6543.177255][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6543.177255][   T73]      netdev_get_by_index+0x5e/0x80
[ 6543.177255][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6543.177255][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6543.177255][   T73]      ip6_route_add+0x1c/0x140
[ 6543.177255][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6543.177255][   T73]      addrconf_add_dev+0xe2/0x170
[ 6543.177255][   T73]      inet6_addr_add+0x12f/0xa40
[ 6543.177255][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6543.177255][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6543.177255][   T73]      netlink_rcv_skb+0x130/0x360
[ 6543.177255][   T73]      netlink_unicast+0x449/0x710
[ 6543.177255][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6543.177255][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6543.177255][   T73]      ___sys_sendmsg+0xee/0x170
[ 6543.177255][   T73]      __sys_sendmsg+0xcd/0x170
[ 6543.177255][   T73]      do_syscall_64+0xc6/0x1e0
[ 6543.177255][   T73] 
[ 6543.179475][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6543.179475][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6543.179475][   T73]      ipv6_find_idev+0x102/0x170
[ 6543.179475][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6543.179475][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6543.179475][   T73]      netlink_rcv_skb+0x130/0x360
[ 6543.179475][   T73]      netlink_unicast+0x449/0x710
[ 6543.179475][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6543.179475][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6543.179475][   T73]      ___sys_sendmsg+0xee/0x170
[ 6543.179475][   T73]      __sys_sendmsg+0xcd/0x170
[ 6543.179475][   T73]      do_syscall_64+0xc6/0x1e0
[ 6543.179475][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6543.179475][   T73] 
[ 6543.181272][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6543.181272][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6543.181272][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6543.181272][   T73]      ipv6_find_idev+0x102/0x170
[ 6543.181272][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6543.181272][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6543.181272][   T73]      netlink_rcv_skb+0x130/0x360
[ 6543.181272][   T73]      netlink_unicast+0x449/0x710
[ 6543.181272][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6543.181272][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6543.181272][   T73]      ___sys_sendmsg+0xee/0x170
[ 6543.181272][   T73]      __sys_sendmsg+0xcd/0x170
[ 6543.181272][   T73]      do_syscall_64+0xc6/0x1e0
[ 6543.181272][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6543.181272][   T73] 
[ 6543.183204][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6543.183471][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6543.183471][   T73]      netdev_get_by_index+0x5e/0x80
[ 6543.183471][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6543.183471][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6543.183471][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6543.183471][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6543.183471][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6543.183471][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6543.183471][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6543.183471][   T73]      addrconf_dad_begin+0x310/0x670
[ 6543.183471][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6543.183471][   T73]      process_one_work+0x84d/0x18a0
[ 6543.183471][   T73]      worker_thread+0x587/0xd30
[ 6543.183471][   T73]      kthread+0x28a/0x350
[ 6543.183471][   T73]      ret_from_fork+0x31/0x70
[ 6543.183471][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6543.183471][   T73] 
[ 6543.185633][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6543.185633][   T73]      netdev_get_by_index+0x5e/0x80
[ 6543.185633][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6543.185633][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6543.185633][   T73]      ip6_route_add+0x1c/0x140
[ 6543.185633][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6543.185633][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6543.185633][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6543.185633][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6543.185633][   T73]      netlink_rcv_skb+0x130/0x360
[ 6543.185633][   T73]      netlink_unicast+0x449/0x710
[ 6543.185633][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6543.185633][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6543.185633][   T73]      ___sys_sendmsg+0xee/0x170
[ 6543.185633][   T73]      __sys_sendmsg+0xcd/0x170
[ 6543.185633][   T73]      do_syscall_64+0xc6/0x1e0
[ 6543.185633][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6543.185633][   T73] 
[ 6543.187815][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6543.187815][   T73]      netdev_get_by_index+0x5e/0x80
[ 6543.187815][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6543.187815][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6543.187815][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6543.187815][   T73]      ipv6_add_addr+0x411/0x2000
[ 6543.187815][   T73]      inet6_addr_add+0x30e/0xa40
[ 6543.187815][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6543.187815][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6543.187815][   T73]      netlink_rcv_skb+0x130/0x360
[ 6543.187815][   T73]      netlink_unicast+0x449/0x710
[ 6543.187815][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6543.187815][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6543.187815][   T73]      ___sys_sendmsg+0xee/0x170
[ 6543.187815][   T73]      __sys_sendmsg+0xcd/0x170
[ 6543.187815][   T73]      do_syscall_64+0xc6/0x1e0
[ 6543.187815][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6543.187815][   T73] 
[ 6543.190057][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6543.190057][   T73]      netdev_get_by_index+0x5e/0x80
[ 6543.190057][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6543.190057][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6543.190057][   T73]      ip6_route_add+0x1c/0x140
[ 6543.190057][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6543.190057][   T73]      addrconf_add_dev+0xe2/0x170
[ 6543.190057][   T73]      inet6_addr_add+0x12f/0xa40
[ 6543.190057][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6543.190057][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6543.190057][   T73]      netlink_rcv_skb+0x130/0x360
[ 6543.190057][   T73]      netlink_unicast+0x449/0x710
[ 6543.190057][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6543.190057][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6543.190057][   T73]      ___sys_sendmsg+0xee/0x170
[ 6543.190057][   T73]      __sys_sendmsg+0xcd/0x170
[ 6543.190057][   T73]      do_syscall_64+0xc6/0x1e0
[ 6543.190057][   T73] 
[ 6543.192323][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6543.192323][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6543.192323][   T73]      ipv6_find_idev+0x102/0x170
[ 6543.192323][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6543.192323][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6543.192323][   T73]      netlink_rcv_skb+0x130/0x360
[ 6543.192323][   T73]      netlink_unicast+0x449/0x710
[ 6543.192323][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6543.192323][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6543.192323][   T73]      ___sys_sendmsg+0xee/0x170
[ 6543.192323][   T73]      __sys_sendmsg+0xcd/0x170
[ 6543.192323][   T73]      do_syscall_64+0xc6/0x1e0
[ 6543.192323][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6543.192323][   T73] 
[ 6543.194048][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6543.194048][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6543.194048][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6543.194048][   T73]      ipv6_find_idev+0x102/0x170
[ 6543.194048][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6543.194048][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6543.194048][   T73]      netlink_rcv_skb+0x130/0x360
[ 6543.194048][   T73]      netlink_unicast+0x449/0x710
[ 6543.194048][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6543.194048][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6543.194048][   T73]      ___sys_sendmsg+0xee/0x170
[ 6543.194048][   T73]      __sys_sendmsg+0xcd/0x170
[ 6543.194048][   T73]      do_syscall_64+0xc6/0x1e0
[ 6543.194048][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6543.194048][   T73] 
[ 6553.447776][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6553.448168][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6553.448168][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6553.448168][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6553.448168][   T73]      fib6_nh_init+0xa22/0x1580
[ 6553.448168][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6553.448168][   T73]      ip6_route_add+0x1c/0x140
[ 6553.448168][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6553.448168][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6553.448168][   T73]      netlink_rcv_skb+0x130/0x360
[ 6553.448168][   T73]      netlink_unicast+0x449/0x710
[ 6553.448168][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6553.448168][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6553.448168][   T73]      ___sys_sendmsg+0xee/0x170
[ 6553.448168][   T73]      __sys_sendmsg+0xcd/0x170
[ 6553.448168][   T73]      do_syscall_64+0xc6/0x1e0
[ 6553.448168][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6553.448168][   T73] 
[ 6553.450206][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6553.450206][   T73]      dst_init+0x84/0x4a0
[ 6553.450206][   T73]      dst_alloc+0x97/0x150
[ 6553.450206][   T73]      ip6_dst_alloc+0x23/0x90
[ 6553.450206][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6553.450206][   T73]      ip6_pol_route+0x56f/0x840
[ 6553.450206][   T73]      fib6_rule_lookup+0x456/0x630
[ 6553.450206][   T73]      ip6_route_input+0x59c/0xa50
[ 6553.450206][   T73]      ipv6_rcv+0x397/0x810
[ 6553.450206][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6553.450206][   T73]      process_backlog+0x101/0x620
[ 6553.450206][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6553.450206][   T73]      net_rx_action+0x495/0xbe0
[ 6553.450206][   T73]      __do_softirq+0x1b5/0x7f6
[ 6553.450206][   T73] 
[ 6553.451883][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6553.451883][   T73]      netdev_get_by_index+0x5e/0x80
[ 6553.451883][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6553.451883][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6553.451883][   T73]      ip6_route_add+0x1c/0x140
[ 6553.451883][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6553.451883][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6553.451883][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6553.451883][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6553.451883][   T73]      netlink_rcv_skb+0x130/0x360
[ 6553.451883][   T73]      netlink_unicast+0x449/0x710
[ 6553.451883][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6553.451883][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6553.451883][   T73]      ___sys_sendmsg+0xee/0x170
[ 6553.451883][   T73]      __sys_sendmsg+0xcd/0x170
[ 6553.451883][   T73]      do_syscall_64+0xc6/0x1e0
[ 6553.451883][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6553.451883][   T73] 
[ 6553.453916][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6553.453916][   T73]      netdev_get_by_index+0x5e/0x80
[ 6553.453916][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6553.453916][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6553.453916][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6553.453916][   T73]      ipv6_add_addr+0x411/0x2000
[ 6553.453916][   T73]      inet6_addr_add+0x30e/0xa40
[ 6553.453916][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6553.453916][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6553.453916][   T73]      netlink_rcv_skb+0x130/0x360
[ 6553.453916][   T73]      netlink_unicast+0x449/0x710
[ 6553.453916][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6553.453916][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6553.453916][   T73]      ___sys_sendmsg+0xee/0x170
[ 6553.453916][   T73]      __sys_sendmsg+0xcd/0x170
[ 6553.453916][   T73]      do_syscall_64+0xc6/0x1e0
[ 6553.453916][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6553.453916][   T73] 
[ 6553.455968][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6553.455968][   T73]      netdev_get_by_index+0x5e/0x80
[ 6553.455968][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6553.455968][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6553.455968][   T73]      ip6_route_add+0x1c/0x140
[ 6553.455968][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6553.455968][   T73]      addrconf_add_dev+0xe2/0x170
[ 6553.455968][   T73]      inet6_addr_add+0x12f/0xa40
[ 6553.455968][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6553.455968][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6553.455968][   T73]      netlink_rcv_skb+0x130/0x360
[ 6553.455968][   T73]      netlink_unicast+0x449/0x710
[ 6553.455968][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6553.455968][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6553.455968][   T73]      ___sys_sendmsg+0xee/0x170
[ 6553.455968][   T73]      __sys_sendmsg+0xcd/0x170
[ 6553.455968][   T73]      do_syscall_64+0xc6/0x1e0
[ 6553.455968][   T73] 
[ 6553.457974][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6553.457974][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6553.457974][   T73]      ipv6_find_idev+0x102/0x170
[ 6553.457974][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6553.457974][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6553.457974][   T73]      netlink_rcv_skb+0x130/0x360
[ 6553.457974][   T73]      netlink_unicast+0x449/0x710
[ 6553.457974][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6553.457974][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6553.457974][   T73]      ___sys_sendmsg+0xee/0x170
[ 6553.457974][   T73]      __sys_sendmsg+0xcd/0x170
[ 6553.457974][   T73]      do_syscall_64+0xc6/0x1e0
[ 6553.457974][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6553.457974][   T73] 
[ 6553.459553][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6553.459553][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6553.459553][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6553.459553][   T73]      ipv6_find_idev+0x102/0x170
[ 6553.459553][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6553.459553][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6553.459553][   T73]      netlink_rcv_skb+0x130/0x360
[ 6553.459553][   T73]      netlink_unicast+0x449/0x710
[ 6553.459553][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6553.459553][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6553.459553][   T73]      ___sys_sendmsg+0xee/0x170
[ 6553.459553][   T73]      __sys_sendmsg+0xcd/0x170
[ 6553.459553][   T73]      do_syscall_64+0xc6/0x1e0
[ 6553.459553][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6553.459553][   T73] 
[ 6553.461303][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6553.461592][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6553.461592][   T73]      netdev_get_by_index+0x5e/0x80
[ 6553.461592][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6553.461592][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6553.461592][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6553.461592][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6553.461592][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6553.461592][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6553.461592][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6553.461592][   T73]      addrconf_dad_begin+0x310/0x670
[ 6553.461592][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6553.461592][   T73]      process_one_work+0x84d/0x18a0
[ 6553.461592][   T73]      worker_thread+0x587/0xd30
[ 6553.461592][   T73]      kthread+0x28a/0x350
[ 6553.461592][   T73]      ret_from_fork+0x31/0x70
[ 6553.461592][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6553.461592][   T73] 
[ 6553.463534][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6553.463534][   T73]      netdev_get_by_index+0x5e/0x80
[ 6553.463534][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6553.463534][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6553.463534][   T73]      ip6_route_add+0x1c/0x140
[ 6553.463534][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6553.463534][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6553.463534][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6553.463534][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6553.463534][   T73]      netlink_rcv_skb+0x130/0x360
[ 6553.463534][   T73]      netlink_unicast+0x449/0x710
[ 6553.463534][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6553.463534][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6553.463534][   T73]      ___sys_sendmsg+0xee/0x170
[ 6553.463534][   T73]      __sys_sendmsg+0xcd/0x170
[ 6553.463534][   T73]      do_syscall_64+0xc6/0x1e0
[ 6553.463534][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6553.463534][   T73] 
[ 6553.465585][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6553.465585][   T73]      netdev_get_by_index+0x5e/0x80
[ 6553.465585][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6553.465585][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6553.465585][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6553.465585][   T73]      ipv6_add_addr+0x411/0x2000
[ 6553.465585][   T73]      inet6_addr_add+0x30e/0xa40
[ 6553.465585][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6553.465585][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6553.465585][   T73]      netlink_rcv_skb+0x130/0x360
[ 6553.465585][   T73]      netlink_unicast+0x449/0x710
[ 6553.465585][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6553.465585][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6553.465585][   T73]      ___sys_sendmsg+0xee/0x170
[ 6553.465585][   T73]      __sys_sendmsg+0xcd/0x170
[ 6553.465585][   T73]      do_syscall_64+0xc6/0x1e0
[ 6553.465585][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6553.465585][   T73] 
[ 6553.467626][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6553.467626][   T73]      netdev_get_by_index+0x5e/0x80
[ 6553.467626][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6553.467626][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6553.467626][   T73]      ip6_route_add+0x1c/0x140
[ 6553.467626][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6553.467626][   T73]      addrconf_add_dev+0xe2/0x170
[ 6553.467626][   T73]      inet6_addr_add+0x12f/0xa40
[ 6553.467626][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6553.467626][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6553.467626][   T73]      netlink_rcv_skb+0x130/0x360
[ 6553.467626][   T73]      netlink_unicast+0x449/0x710
[ 6553.467626][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6553.467626][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6553.467626][   T73]      ___sys_sendmsg+0xee/0x170
[ 6553.467626][   T73]      __sys_sendmsg+0xcd/0x170
[ 6553.467626][   T73]      do_syscall_64+0xc6/0x1e0
[ 6553.467626][   T73] 
[ 6553.469618][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6553.469618][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6553.469618][   T73]      ipv6_find_idev+0x102/0x170
[ 6553.469618][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6553.469618][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6553.469618][   T73]      netlink_rcv_skb+0x130/0x360
[ 6553.469618][   T73]      netlink_unicast+0x449/0x710
[ 6553.469618][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6553.469618][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6553.469618][   T73]      ___sys_sendmsg+0xee/0x170
[ 6553.469618][   T73]      __sys_sendmsg+0xcd/0x170
[ 6553.469618][   T73]      do_syscall_64+0xc6/0x1e0
[ 6553.469618][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6553.469618][   T73] 
[ 6553.471185][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6553.471185][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6553.471185][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6553.471185][   T73]      ipv6_find_idev+0x102/0x170
[ 6553.471185][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6553.471185][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6553.471185][   T73]      netlink_rcv_skb+0x130/0x360
[ 6553.471185][   T73]      netlink_unicast+0x449/0x710
[ 6553.471185][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6553.471185][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6553.471185][   T73]      ___sys_sendmsg+0xee/0x170
[ 6553.471185][   T73]      __sys_sendmsg+0xcd/0x170
[ 6553.471185][   T73]      do_syscall_64+0xc6/0x1e0
[ 6553.471185][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6553.471185][   T73] 
[ 6553.472895][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6553.473177][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6553.473177][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6553.473177][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6553.473177][   T73]      fib6_nh_init+0xa22/0x1580
[ 6553.473177][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6553.473177][   T73]      ip6_route_add+0x1c/0x140
[ 6553.473177][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6553.473177][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6553.473177][   T73]      netlink_rcv_skb+0x130/0x360
[ 6553.473177][   T73]      netlink_unicast+0x449/0x710
[ 6553.473177][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6553.473177][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6553.473177][   T73]      ___sys_sendmsg+0xee/0x170
[ 6553.473177][   T73]      __sys_sendmsg+0xcd/0x170
[ 6553.473177][   T73]      do_syscall_64+0xc6/0x1e0
[ 6553.473177][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6553.473177][   T73] 
[ 6553.475260][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6553.475260][   T73]      dst_init+0x84/0x4a0
[ 6553.475260][   T73]      dst_alloc+0x97/0x150
[ 6553.475260][   T73]      ip6_dst_alloc+0x23/0x90
[ 6553.475260][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6553.475260][   T73]      ip6_pol_route+0x56f/0x840
[ 6553.475260][   T73]      fib6_rule_lookup+0x456/0x630
[ 6553.475260][   T73]      ip6_route_input+0x59c/0xa50
[ 6553.475260][   T73]      ipv6_rcv+0x397/0x810
[ 6553.475260][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6553.475260][   T73]      process_backlog+0x101/0x620
[ 6553.475260][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6553.475260][   T73]      net_rx_action+0x495/0xbe0
[ 6553.475260][   T73]      __do_softirq+0x1b5/0x7f6
[ 6553.475260][   T73] 
[ 6553.477099][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6553.477099][   T73]      netdev_get_by_index+0x5e/0x80
[ 6553.477099][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6553.477099][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6553.477099][   T73]      ip6_route_add+0x1c/0x140
[ 6553.477099][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6553.477099][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6553.477099][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6553.477099][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6553.477099][   T73]      netlink_rcv_skb+0x130/0x360
[ 6553.477099][   T73]      netlink_unicast+0x449/0x710
[ 6553.477099][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6553.477099][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6553.477099][   T73]      ___sys_sendmsg+0xee/0x170
[ 6553.477099][   T73]      __sys_sendmsg+0xcd/0x170
[ 6553.477099][   T73]      do_syscall_64+0xc6/0x1e0
[ 6553.477099][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6553.477099][   T73] 
[ 6553.479353][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6553.479353][   T73]      netdev_get_by_index+0x5e/0x80
[ 6553.479353][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6553.479353][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6553.479353][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6553.479353][   T73]      ipv6_add_addr+0x411/0x2000
[ 6553.479353][   T73]      inet6_addr_add+0x30e/0xa40
[ 6553.479353][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6553.479353][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6553.479353][   T73]      netlink_rcv_skb+0x130/0x360
[ 6553.479353][   T73]      netlink_unicast+0x449/0x710
[ 6553.479353][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6553.479353][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6553.479353][   T73]      ___sys_sendmsg+0xee/0x170
[ 6553.479353][   T73]      __sys_sendmsg+0xcd/0x170
[ 6553.479353][   T73]      do_syscall_64+0xc6/0x1e0
[ 6553.479353][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6553.479353][   T73] 
[ 6553.481667][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6553.481667][   T73]      netdev_get_by_index+0x5e/0x80
[ 6553.481667][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6553.481667][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6553.481667][   T73]      ip6_route_add+0x1c/0x140
[ 6553.481667][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6553.481667][   T73]      addrconf_add_dev+0xe2/0x170
[ 6553.481667][   T73]      inet6_addr_add+0x12f/0xa40
[ 6553.481667][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6553.481667][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6553.481667][   T73]      netlink_rcv_skb+0x130/0x360
[ 6553.481667][   T73]      netlink_unicast+0x449/0x710
[ 6553.481667][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6553.481667][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6553.481667][   T73]      ___sys_sendmsg+0xee/0x170
[ 6553.481667][   T73]      __sys_sendmsg+0xcd/0x170
[ 6553.481667][   T73]      do_syscall_64+0xc6/0x1e0
[ 6553.481667][   T73] 
[ 6553.483892][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6553.483892][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6553.483892][   T73]      ipv6_find_idev+0x102/0x170
[ 6553.483892][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6553.483892][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6553.483892][   T73]      netlink_rcv_skb+0x130/0x360
[ 6553.483892][   T73]      netlink_unicast+0x449/0x710
[ 6553.483892][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6553.483892][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6553.483892][   T73]      ___sys_sendmsg+0xee/0x170
[ 6553.483892][   T73]      __sys_sendmsg+0xcd/0x170
[ 6553.483892][   T73]      do_syscall_64+0xc6/0x1e0
[ 6553.483892][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6553.483892][   T73] 
[ 6553.485645][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6553.485645][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6553.485645][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6553.485645][   T73]      ipv6_find_idev+0x102/0x170
[ 6553.485645][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6553.485645][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6553.485645][   T73]      netlink_rcv_skb+0x130/0x360
[ 6553.485645][   T73]      netlink_unicast+0x449/0x710
[ 6553.485645][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6553.485645][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6553.485645][   T73]      ___sys_sendmsg+0xee/0x170
[ 6553.485645][   T73]      __sys_sendmsg+0xcd/0x170
[ 6553.485645][   T73]      do_syscall_64+0xc6/0x1e0
[ 6553.485645][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6553.485645][   T73] 
[ 6553.487542][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6553.488246][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6553.488246][   T73]      netdev_get_by_index+0x5e/0x80
[ 6553.488246][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6553.488246][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6553.488246][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6553.488246][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6553.488246][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6553.488246][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6553.488246][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6553.488246][   T73]      addrconf_dad_begin+0x310/0x670
[ 6553.488246][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6553.488246][   T73]      process_one_work+0x84d/0x18a0
[ 6553.488246][   T73]      worker_thread+0x587/0xd30
[ 6553.488246][   T73]      kthread+0x28a/0x350
[ 6553.488246][   T73]      ret_from_fork+0x31/0x70
[ 6553.488246][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6553.488246][   T73] 
[ 6553.490167][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6553.490167][   T73]      netdev_get_by_index+0x5e/0x80
[ 6553.490167][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6553.490167][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6553.490167][   T73]      ip6_route_add+0x1c/0x140
[ 6553.490167][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6553.490167][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6553.490167][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6553.490167][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6553.490167][   T73]      netlink_rcv_skb+0x130/0x360
[ 6553.490167][   T73]      netlink_unicast+0x449/0x710
[ 6553.490167][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6553.490167][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6553.490167][   T73]      ___sys_sendmsg+0xee/0x170
[ 6553.490167][   T73]      __sys_sendmsg+0xcd/0x170
[ 6553.490167][   T73]      do_syscall_64+0xc6/0x1e0
[ 6553.490167][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6553.490167][   T73] 
[ 6553.492303][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6553.492303][   T73]      netdev_get_by_index+0x5e/0x80
[ 6553.492303][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6553.492303][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6553.492303][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6553.492303][   T73]      ipv6_add_addr+0x411/0x2000
[ 6553.492303][   T73]      inet6_addr_add+0x30e/0xa40
[ 6553.492303][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6553.492303][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6553.492303][   T73]      netlink_rcv_skb+0x130/0x360
[ 6553.492303][   T73]      netlink_unicast+0x449/0x710
[ 6553.492303][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6553.492303][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6553.492303][   T73]      ___sys_sendmsg+0xee/0x170
[ 6553.492303][   T73]      __sys_sendmsg+0xcd/0x170
[ 6553.492303][   T73]      do_syscall_64+0xc6/0x1e0
[ 6553.492303][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6553.492303][   T73] 
[ 6553.494638][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6553.494638][   T73]      netdev_get_by_index+0x5e/0x80
[ 6553.494638][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6553.494638][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6553.494638][   T73]      ip6_route_add+0x1c/0x140
[ 6553.494638][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6553.494638][   T73]      addrconf_add_dev+0xe2/0x170
[ 6553.494638][   T73]      inet6_addr_add+0x12f/0xa40
[ 6553.494638][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6553.494638][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6553.494638][   T73]      netlink_rcv_skb+0x130/0x360
[ 6553.494638][   T73]      netlink_unicast+0x449/0x710
[ 6553.494638][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6553.494638][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6553.494638][   T73]      ___sys_sendmsg+0xee/0x170
[ 6553.494638][   T73]      __sys_sendmsg+0xcd/0x170
[ 6553.494638][   T73]      do_syscall_64+0xc6/0x1e0
[ 6553.494638][   T73] 
[ 6553.496805][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6553.496805][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6553.496805][   T73]      ipv6_find_idev+0x102/0x170
[ 6553.496805][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6553.496805][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6553.496805][   T73]      netlink_rcv_skb+0x130/0x360
[ 6553.496805][   T73]      netlink_unicast+0x449/0x710
[ 6553.496805][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6553.496805][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6553.496805][   T73]      ___sys_sendmsg+0xee/0x170
[ 6553.496805][   T73]      __sys_sendmsg+0xcd/0x170
[ 6553.496805][   T73]      do_syscall_64+0xc6/0x1e0
[ 6553.496805][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6553.496805][   T73] 
[ 6553.498544][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6553.498544][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6553.498544][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6553.498544][   T73]      ipv6_find_idev+0x102/0x170
[ 6553.498544][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6553.498544][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6553.498544][   T73]      netlink_rcv_skb+0x130/0x360
[ 6553.498544][   T73]      netlink_unicast+0x449/0x710
[ 6553.498544][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6553.498544][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6553.498544][   T73]      ___sys_sendmsg+0xee/0x170
[ 6553.498544][   T73]      __sys_sendmsg+0xcd/0x170
[ 6553.498544][   T73]      do_syscall_64+0xc6/0x1e0
[ 6553.498544][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6553.498544][   T73] 
[ 6563.607746][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6563.608210][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6563.608210][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6563.608210][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6563.608210][   T73]      fib6_nh_init+0xa22/0x1580
[ 6563.608210][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6563.608210][   T73]      ip6_route_add+0x1c/0x140
[ 6563.608210][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6563.608210][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6563.608210][   T73]      netlink_rcv_skb+0x130/0x360
[ 6563.608210][   T73]      netlink_unicast+0x449/0x710
[ 6563.608210][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6563.608210][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6563.608210][   T73]      ___sys_sendmsg+0xee/0x170
[ 6563.608210][   T73]      __sys_sendmsg+0xcd/0x170
[ 6563.608210][   T73]      do_syscall_64+0xc6/0x1e0
[ 6563.608210][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6563.608210][   T73] 
[ 6563.610150][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6563.610150][   T73]      dst_init+0x84/0x4a0
[ 6563.610150][   T73]      dst_alloc+0x97/0x150
[ 6563.610150][   T73]      ip6_dst_alloc+0x23/0x90
[ 6563.610150][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6563.610150][   T73]      ip6_pol_route+0x56f/0x840
[ 6563.610150][   T73]      fib6_rule_lookup+0x456/0x630
[ 6563.610150][   T73]      ip6_route_input+0x59c/0xa50
[ 6563.610150][   T73]      ipv6_rcv+0x397/0x810
[ 6563.610150][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6563.610150][   T73]      process_backlog+0x101/0x620
[ 6563.610150][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6563.610150][   T73]      net_rx_action+0x495/0xbe0
[ 6563.610150][   T73]      __do_softirq+0x1b5/0x7f6
[ 6563.610150][   T73] 
[ 6563.611805][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6563.611805][   T73]      netdev_get_by_index+0x5e/0x80
[ 6563.611805][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6563.611805][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6563.611805][   T73]      ip6_route_add+0x1c/0x140
[ 6563.611805][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6563.611805][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6563.611805][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6563.611805][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6563.611805][   T73]      netlink_rcv_skb+0x130/0x360
[ 6563.611805][   T73]      netlink_unicast+0x449/0x710
[ 6563.611805][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6563.611805][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6563.611805][   T73]      ___sys_sendmsg+0xee/0x170
[ 6563.611805][   T73]      __sys_sendmsg+0xcd/0x170
[ 6563.611805][   T73]      do_syscall_64+0xc6/0x1e0
[ 6563.611805][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6563.611805][   T73] 
[ 6563.613824][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6563.613824][   T73]      netdev_get_by_index+0x5e/0x80
[ 6563.613824][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6563.613824][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6563.613824][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6563.613824][   T73]      ipv6_add_addr+0x411/0x2000
[ 6563.613824][   T73]      inet6_addr_add+0x30e/0xa40
[ 6563.613824][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6563.613824][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6563.613824][   T73]      netlink_rcv_skb+0x130/0x360
[ 6563.613824][   T73]      netlink_unicast+0x449/0x710
[ 6563.613824][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6563.613824][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6563.613824][   T73]      ___sys_sendmsg+0xee/0x170
[ 6563.613824][   T73]      __sys_sendmsg+0xcd/0x170
[ 6563.613824][   T73]      do_syscall_64+0xc6/0x1e0
[ 6563.613824][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6563.613824][   T73] 
[ 6563.615857][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6563.615857][   T73]      netdev_get_by_index+0x5e/0x80
[ 6563.615857][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6563.615857][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6563.615857][   T73]      ip6_route_add+0x1c/0x140
[ 6563.615857][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6563.615857][   T73]      addrconf_add_dev+0xe2/0x170
[ 6563.615857][   T73]      inet6_addr_add+0x12f/0xa40
[ 6563.615857][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6563.615857][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6563.615857][   T73]      netlink_rcv_skb+0x130/0x360
[ 6563.615857][   T73]      netlink_unicast+0x449/0x710
[ 6563.615857][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6563.615857][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6563.615857][   T73]      ___sys_sendmsg+0xee/0x170
[ 6563.615857][   T73]      __sys_sendmsg+0xcd/0x170
[ 6563.615857][   T73]      do_syscall_64+0xc6/0x1e0
[ 6563.615857][   T73] 
[ 6563.617837][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6563.617837][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6563.617837][   T73]      ipv6_find_idev+0x102/0x170
[ 6563.617837][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6563.617837][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6563.617837][   T73]      netlink_rcv_skb+0x130/0x360
[ 6563.617837][   T73]      netlink_unicast+0x449/0x710
[ 6563.617837][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6563.617837][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6563.617837][   T73]      ___sys_sendmsg+0xee/0x170
[ 6563.617837][   T73]      __sys_sendmsg+0xcd/0x170
[ 6563.617837][   T73]      do_syscall_64+0xc6/0x1e0
[ 6563.617837][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6563.617837][   T73] 
[ 6563.619400][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6563.619400][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6563.619400][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6563.619400][   T73]      ipv6_find_idev+0x102/0x170
[ 6563.619400][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6563.619400][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6563.619400][   T73]      netlink_rcv_skb+0x130/0x360
[ 6563.619400][   T73]      netlink_unicast+0x449/0x710
[ 6563.619400][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6563.619400][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6563.619400][   T73]      ___sys_sendmsg+0xee/0x170
[ 6563.619400][   T73]      __sys_sendmsg+0xcd/0x170
[ 6563.619400][   T73]      do_syscall_64+0xc6/0x1e0
[ 6563.619400][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6563.619400][   T73] 
[ 6563.621116][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6563.621394][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6563.621394][   T73]      netdev_get_by_index+0x5e/0x80
[ 6563.621394][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6563.621394][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6563.621394][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6563.621394][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6563.621394][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6563.621394][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6563.621394][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6563.621394][   T73]      addrconf_dad_begin+0x310/0x670
[ 6563.621394][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6563.621394][   T73]      process_one_work+0x84d/0x18a0
[ 6563.621394][   T73]      worker_thread+0x587/0xd30
[ 6563.621394][   T73]      kthread+0x28a/0x350
[ 6563.621394][   T73]      ret_from_fork+0x31/0x70
[ 6563.621394][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6563.621394][   T73] 
[ 6563.623324][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6563.623324][   T73]      netdev_get_by_index+0x5e/0x80
[ 6563.623324][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6563.623324][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6563.623324][   T73]      ip6_route_add+0x1c/0x140
[ 6563.623324][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6563.623324][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6563.623324][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6563.623324][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6563.623324][   T73]      netlink_rcv_skb+0x130/0x360
[ 6563.623324][   T73]      netlink_unicast+0x449/0x710
[ 6563.623324][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6563.623324][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6563.623324][   T73]      ___sys_sendmsg+0xee/0x170
[ 6563.623324][   T73]      __sys_sendmsg+0xcd/0x170
[ 6563.623324][   T73]      do_syscall_64+0xc6/0x1e0
[ 6563.623324][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6563.623324][   T73] 
[ 6563.625355][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6563.625355][   T73]      netdev_get_by_index+0x5e/0x80
[ 6563.625355][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6563.625355][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6563.625355][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6563.625355][   T73]      ipv6_add_addr+0x411/0x2000
[ 6563.625355][   T73]      inet6_addr_add+0x30e/0xa40
[ 6563.625355][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6563.625355][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6563.625355][   T73]      netlink_rcv_skb+0x130/0x360
[ 6563.625355][   T73]      netlink_unicast+0x449/0x710
[ 6563.625355][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6563.625355][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6563.625355][   T73]      ___sys_sendmsg+0xee/0x170
[ 6563.625355][   T73]      __sys_sendmsg+0xcd/0x170
[ 6563.625355][   T73]      do_syscall_64+0xc6/0x1e0
[ 6563.625355][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6563.625355][   T73] 
[ 6563.627423][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6563.627423][   T73]      netdev_get_by_index+0x5e/0x80
[ 6563.627423][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6563.627423][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6563.627423][   T73]      ip6_route_add+0x1c/0x140
[ 6563.627423][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6563.627423][   T73]      addrconf_add_dev+0xe2/0x170
[ 6563.627423][   T73]      inet6_addr_add+0x12f/0xa40
[ 6563.627423][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6563.627423][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6563.627423][   T73]      netlink_rcv_skb+0x130/0x360
[ 6563.627423][   T73]      netlink_unicast+0x449/0x710
[ 6563.627423][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6563.627423][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6563.627423][   T73]      ___sys_sendmsg+0xee/0x170
[ 6563.627423][   T73]      __sys_sendmsg+0xcd/0x170
[ 6563.627423][   T73]      do_syscall_64+0xc6/0x1e0
[ 6563.627423][   T73] 
[ 6563.629404][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6563.629404][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6563.629404][   T73]      ipv6_find_idev+0x102/0x170
[ 6563.629404][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6563.629404][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6563.629404][   T73]      netlink_rcv_skb+0x130/0x360
[ 6563.629404][   T73]      netlink_unicast+0x449/0x710
[ 6563.629404][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6563.629404][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6563.629404][   T73]      ___sys_sendmsg+0xee/0x170
[ 6563.629404][   T73]      __sys_sendmsg+0xcd/0x170
[ 6563.629404][   T73]      do_syscall_64+0xc6/0x1e0
[ 6563.629404][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6563.629404][   T73] 
[ 6563.630956][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6563.630956][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6563.630956][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6563.630956][   T73]      ipv6_find_idev+0x102/0x170
[ 6563.630956][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6563.630956][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6563.630956][   T73]      netlink_rcv_skb+0x130/0x360
[ 6563.630956][   T73]      netlink_unicast+0x449/0x710
[ 6563.630956][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6563.630956][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6563.630956][   T73]      ___sys_sendmsg+0xee/0x170
[ 6563.630956][   T73]      __sys_sendmsg+0xcd/0x170
[ 6563.630956][   T73]      do_syscall_64+0xc6/0x1e0
[ 6563.630956][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6563.630956][   T73] 
[ 6563.632687][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6563.632965][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6563.632965][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6563.632965][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6563.632965][   T73]      fib6_nh_init+0xa22/0x1580
[ 6563.632965][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6563.632965][   T73]      ip6_route_add+0x1c/0x140
[ 6563.632965][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6563.632965][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6563.632965][   T73]      netlink_rcv_skb+0x130/0x360
[ 6563.632965][   T73]      netlink_unicast+0x449/0x710
[ 6563.632965][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6563.632965][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6563.632965][   T73]      ___sys_sendmsg+0xee/0x170
[ 6563.632965][   T73]      __sys_sendmsg+0xcd/0x170
[ 6563.632965][   T73]      do_syscall_64+0xc6/0x1e0
[ 6563.632965][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6563.632965][   T73] 
[ 6563.635054][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6563.635054][   T73]      dst_init+0x84/0x4a0
[ 6563.635054][   T73]      dst_alloc+0x97/0x150
[ 6563.635054][   T73]      ip6_dst_alloc+0x23/0x90
[ 6563.635054][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6563.635054][   T73]      ip6_pol_route+0x56f/0x840
[ 6563.635054][   T73]      fib6_rule_lookup+0x456/0x630
[ 6563.635054][   T73]      ip6_route_input+0x59c/0xa50
[ 6563.635054][   T73]      ipv6_rcv+0x397/0x810
[ 6563.635054][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6563.635054][   T73]      process_backlog+0x101/0x620
[ 6563.635054][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6563.635054][   T73]      net_rx_action+0x495/0xbe0
[ 6563.635054][   T73]      __do_softirq+0x1b5/0x7f6
[ 6563.635054][   T73] 
[ 6563.636968][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6563.636968][   T73]      netdev_get_by_index+0x5e/0x80
[ 6563.636968][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6563.636968][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6563.636968][   T73]      ip6_route_add+0x1c/0x140
[ 6563.636968][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6563.636968][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6563.636968][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6563.636968][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6563.636968][   T73]      netlink_rcv_skb+0x130/0x360
[ 6563.636968][   T73]      netlink_unicast+0x449/0x710
[ 6563.636968][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6563.636968][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6563.636968][   T73]      ___sys_sendmsg+0xee/0x170
[ 6563.636968][   T73]      __sys_sendmsg+0xcd/0x170
[ 6563.636968][   T73]      do_syscall_64+0xc6/0x1e0
[ 6563.636968][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6563.636968][   T73] 
[ 6563.639246][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6563.639246][   T73]      netdev_get_by_index+0x5e/0x80
[ 6563.639246][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6563.639246][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6563.639246][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6563.639246][   T73]      ipv6_add_addr+0x411/0x2000
[ 6563.639246][   T73]      inet6_addr_add+0x30e/0xa40
[ 6563.639246][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6563.639246][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6563.639246][   T73]      netlink_rcv_skb+0x130/0x360
[ 6563.639246][   T73]      netlink_unicast+0x449/0x710
[ 6563.639246][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6563.639246][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6563.639246][   T73]      ___sys_sendmsg+0xee/0x170
[ 6563.639246][   T73]      __sys_sendmsg+0xcd/0x170
[ 6563.639246][   T73]      do_syscall_64+0xc6/0x1e0
[ 6563.639246][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6563.639246][   T73] 
[ 6563.641519][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6563.641519][   T73]      netdev_get_by_index+0x5e/0x80
[ 6563.641519][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6563.641519][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6563.641519][   T73]      ip6_route_add+0x1c/0x140
[ 6563.641519][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6563.641519][   T73]      addrconf_add_dev+0xe2/0x170
[ 6563.641519][   T73]      inet6_addr_add+0x12f/0xa40
[ 6563.641519][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6563.641519][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6563.641519][   T73]      netlink_rcv_skb+0x130/0x360
[ 6563.641519][   T73]      netlink_unicast+0x449/0x710
[ 6563.641519][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6563.641519][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6563.641519][   T73]      ___sys_sendmsg+0xee/0x170
[ 6563.641519][   T73]      __sys_sendmsg+0xcd/0x170
[ 6563.641519][   T73]      do_syscall_64+0xc6/0x1e0
[ 6563.641519][   T73] 
[ 6563.643766][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6563.643766][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6563.643766][   T73]      ipv6_find_idev+0x102/0x170
[ 6563.643766][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6563.643766][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6563.643766][   T73]      netlink_rcv_skb+0x130/0x360
[ 6563.643766][   T73]      netlink_unicast+0x449/0x710
[ 6563.643766][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6563.643766][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6563.643766][   T73]      ___sys_sendmsg+0xee/0x170
[ 6563.643766][   T73]      __sys_sendmsg+0xcd/0x170
[ 6563.643766][   T73]      do_syscall_64+0xc6/0x1e0
[ 6563.643766][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6563.643766][   T73] 
[ 6563.645595][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6563.645595][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6563.645595][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6563.645595][   T73]      ipv6_find_idev+0x102/0x170
[ 6563.645595][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6563.645595][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6563.645595][   T73]      netlink_rcv_skb+0x130/0x360
[ 6563.645595][   T73]      netlink_unicast+0x449/0x710
[ 6563.645595][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6563.645595][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6563.645595][   T73]      ___sys_sendmsg+0xee/0x170
[ 6563.645595][   T73]      __sys_sendmsg+0xcd/0x170
[ 6563.645595][   T73]      do_syscall_64+0xc6/0x1e0
[ 6563.645595][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6563.645595][   T73] 
[ 6563.647490][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6563.648213][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6563.648213][   T73]      netdev_get_by_index+0x5e/0x80
[ 6563.648213][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6563.648213][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6563.648213][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6563.648213][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6563.648213][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6563.648213][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6563.648213][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6563.648213][   T73]      addrconf_dad_begin+0x310/0x670
[ 6563.648213][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6563.648213][   T73]      process_one_work+0x84d/0x18a0
[ 6563.648213][   T73]      worker_thread+0x587/0xd30
[ 6563.648213][   T73]      kthread+0x28a/0x350
[ 6563.648213][   T73]      ret_from_fork+0x31/0x70
[ 6563.648213][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6563.648213][   T73] 
[ 6563.650149][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6563.650149][   T73]      netdev_get_by_index+0x5e/0x80
[ 6563.650149][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6563.650149][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6563.650149][   T73]      ip6_route_add+0x1c/0x140
[ 6563.650149][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6563.650149][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6563.650149][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6563.650149][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6563.650149][   T73]      netlink_rcv_skb+0x130/0x360
[ 6563.650149][   T73]      netlink_unicast+0x449/0x710
[ 6563.650149][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6563.650149][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6563.650149][   T73]      ___sys_sendmsg+0xee/0x170
[ 6563.650149][   T73]      __sys_sendmsg+0xcd/0x170
[ 6563.650149][   T73]      do_syscall_64+0xc6/0x1e0
[ 6563.650149][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6563.650149][   T73] 
[ 6563.652306][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6563.652306][   T73]      netdev_get_by_index+0x5e/0x80
[ 6563.652306][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6563.652306][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6563.652306][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6563.652306][   T73]      ipv6_add_addr+0x411/0x2000
[ 6563.652306][   T73]      inet6_addr_add+0x30e/0xa40
[ 6563.652306][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6563.652306][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6563.652306][   T73]      netlink_rcv_skb+0x130/0x360
[ 6563.652306][   T73]      netlink_unicast+0x449/0x710
[ 6563.652306][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6563.652306][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6563.652306][   T73]      ___sys_sendmsg+0xee/0x170
[ 6563.652306][   T73]      __sys_sendmsg+0xcd/0x170
[ 6563.652306][   T73]      do_syscall_64+0xc6/0x1e0
[ 6563.652306][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6563.652306][   T73] 
[ 6563.654586][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6563.654586][   T73]      netdev_get_by_index+0x5e/0x80
[ 6563.654586][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6563.654586][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6563.654586][   T73]      ip6_route_add+0x1c/0x140
[ 6563.654586][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6563.654586][   T73]      addrconf_add_dev+0xe2/0x170
[ 6563.654586][   T73]      inet6_addr_add+0x12f/0xa40
[ 6563.654586][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6563.654586][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6563.654586][   T73]      netlink_rcv_skb+0x130/0x360
[ 6563.654586][   T73]      netlink_unicast+0x449/0x710
[ 6563.654586][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6563.654586][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6563.654586][   T73]      ___sys_sendmsg+0xee/0x170
[ 6563.654586][   T73]      __sys_sendmsg+0xcd/0x170
[ 6563.654586][   T73]      do_syscall_64+0xc6/0x1e0
[ 6563.654586][   T73] 
[ 6563.656767][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6563.656767][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6563.656767][   T73]      ipv6_find_idev+0x102/0x170
[ 6563.656767][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6563.656767][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6563.656767][   T73]      netlink_rcv_skb+0x130/0x360
[ 6563.656767][   T73]      netlink_unicast+0x449/0x710
[ 6563.656767][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6563.656767][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6563.656767][   T73]      ___sys_sendmsg+0xee/0x170
[ 6563.656767][   T73]      __sys_sendmsg+0xcd/0x170
[ 6563.656767][   T73]      do_syscall_64+0xc6/0x1e0
[ 6563.656767][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6563.656767][   T73] 
[ 6563.658581][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6563.658581][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6563.658581][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6563.658581][   T73]      ipv6_find_idev+0x102/0x170
[ 6563.658581][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6563.658581][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6563.658581][   T73]      netlink_rcv_skb+0x130/0x360
[ 6563.658581][   T73]      netlink_unicast+0x449/0x710
[ 6563.658581][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6563.658581][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6563.658581][   T73]      ___sys_sendmsg+0xee/0x170
[ 6563.658581][   T73]      __sys_sendmsg+0xcd/0x170
[ 6563.658581][   T73]      do_syscall_64+0xc6/0x1e0
[ 6563.658581][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6563.658581][   T73] 
[ 6573.751749][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6573.752182][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6573.752182][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6573.752182][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6573.752182][   T73]      fib6_nh_init+0xa22/0x1580
[ 6573.752182][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6573.752182][   T73]      ip6_route_add+0x1c/0x140
[ 6573.752182][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6573.752182][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6573.752182][   T73]      netlink_rcv_skb+0x130/0x360
[ 6573.752182][   T73]      netlink_unicast+0x449/0x710
[ 6573.752182][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6573.752182][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6573.752182][   T73]      ___sys_sendmsg+0xee/0x170
[ 6573.752182][   T73]      __sys_sendmsg+0xcd/0x170
[ 6573.752182][   T73]      do_syscall_64+0xc6/0x1e0
[ 6573.752182][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6573.752182][   T73] 
[ 6573.754142][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6573.754142][   T73]      dst_init+0x84/0x4a0
[ 6573.754142][   T73]      dst_alloc+0x97/0x150
[ 6573.754142][   T73]      ip6_dst_alloc+0x23/0x90
[ 6573.754142][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6573.754142][   T73]      ip6_pol_route+0x56f/0x840
[ 6573.754142][   T73]      fib6_rule_lookup+0x456/0x630
[ 6573.754142][   T73]      ip6_route_input+0x59c/0xa50
[ 6573.754142][   T73]      ipv6_rcv+0x397/0x810
[ 6573.754142][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6573.754142][   T73]      process_backlog+0x101/0x620
[ 6573.754142][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6573.754142][   T73]      net_rx_action+0x495/0xbe0
[ 6573.754142][   T73]      __do_softirq+0x1b5/0x7f6
[ 6573.754142][   T73] 
[ 6573.755813][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6573.755813][   T73]      netdev_get_by_index+0x5e/0x80
[ 6573.755813][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6573.755813][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6573.755813][   T73]      ip6_route_add+0x1c/0x140
[ 6573.755813][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6573.755813][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6573.755813][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6573.755813][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6573.755813][   T73]      netlink_rcv_skb+0x130/0x360
[ 6573.755813][   T73]      netlink_unicast+0x449/0x710
[ 6573.755813][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6573.755813][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6573.755813][   T73]      ___sys_sendmsg+0xee/0x170
[ 6573.755813][   T73]      __sys_sendmsg+0xcd/0x170
[ 6573.755813][   T73]      do_syscall_64+0xc6/0x1e0
[ 6573.755813][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6573.755813][   T73] 
[ 6573.757849][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6573.757849][   T73]      netdev_get_by_index+0x5e/0x80
[ 6573.757849][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6573.757849][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6573.757849][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6573.757849][   T73]      ipv6_add_addr+0x411/0x2000
[ 6573.757849][   T73]      inet6_addr_add+0x30e/0xa40
[ 6573.757849][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6573.757849][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6573.757849][   T73]      netlink_rcv_skb+0x130/0x360
[ 6573.757849][   T73]      netlink_unicast+0x449/0x710
[ 6573.757849][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6573.757849][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6573.757849][   T73]      ___sys_sendmsg+0xee/0x170
[ 6573.757849][   T73]      __sys_sendmsg+0xcd/0x170
[ 6573.757849][   T73]      do_syscall_64+0xc6/0x1e0
[ 6573.757849][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6573.757849][   T73] 
[ 6573.759873][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6573.759873][   T73]      netdev_get_by_index+0x5e/0x80
[ 6573.759873][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6573.759873][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6573.759873][   T73]      ip6_route_add+0x1c/0x140
[ 6573.759873][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6573.759873][   T73]      addrconf_add_dev+0xe2/0x170
[ 6573.759873][   T73]      inet6_addr_add+0x12f/0xa40
[ 6573.759873][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6573.759873][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6573.759873][   T73]      netlink_rcv_skb+0x130/0x360
[ 6573.759873][   T73]      netlink_unicast+0x449/0x710
[ 6573.759873][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6573.759873][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6573.759873][   T73]      ___sys_sendmsg+0xee/0x170
[ 6573.759873][   T73]      __sys_sendmsg+0xcd/0x170
[ 6573.759873][   T73]      do_syscall_64+0xc6/0x1e0
[ 6573.759873][   T73] 
[ 6573.761892][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6573.761892][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6573.761892][   T73]      ipv6_find_idev+0x102/0x170
[ 6573.761892][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6573.761892][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6573.761892][   T73]      netlink_rcv_skb+0x130/0x360
[ 6573.761892][   T73]      netlink_unicast+0x449/0x710
[ 6573.761892][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6573.761892][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6573.761892][   T73]      ___sys_sendmsg+0xee/0x170
[ 6573.761892][   T73]      __sys_sendmsg+0xcd/0x170
[ 6573.761892][   T73]      do_syscall_64+0xc6/0x1e0
[ 6573.761892][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6573.761892][   T73] 
[ 6573.763457][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6573.763457][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6573.763457][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6573.763457][   T73]      ipv6_find_idev+0x102/0x170
[ 6573.763457][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6573.763457][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6573.763457][   T73]      netlink_rcv_skb+0x130/0x360
[ 6573.763457][   T73]      netlink_unicast+0x449/0x710
[ 6573.763457][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6573.763457][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6573.763457][   T73]      ___sys_sendmsg+0xee/0x170
[ 6573.763457][   T73]      __sys_sendmsg+0xcd/0x170
[ 6573.763457][   T73]      do_syscall_64+0xc6/0x1e0
[ 6573.763457][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6573.763457][   T73] 
[ 6573.765191][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6573.765470][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6573.765470][   T73]      netdev_get_by_index+0x5e/0x80
[ 6573.765470][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6573.765470][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6573.765470][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6573.765470][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6573.765470][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6573.765470][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6573.765470][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6573.765470][   T73]      addrconf_dad_begin+0x310/0x670
[ 6573.765470][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6573.765470][   T73]      process_one_work+0x84d/0x18a0
[ 6573.765470][   T73]      worker_thread+0x587/0xd30
[ 6573.765470][   T73]      kthread+0x28a/0x350
[ 6573.765470][   T73]      ret_from_fork+0x31/0x70
[ 6573.765470][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6573.765470][   T73] 
[ 6573.767423][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6573.767423][   T73]      netdev_get_by_index+0x5e/0x80
[ 6573.767423][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6573.767423][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6573.767423][   T73]      ip6_route_add+0x1c/0x140
[ 6573.767423][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6573.767423][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6573.767423][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6573.767423][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6573.767423][   T73]      netlink_rcv_skb+0x130/0x360
[ 6573.767423][   T73]      netlink_unicast+0x449/0x710
[ 6573.767423][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6573.767423][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6573.767423][   T73]      ___sys_sendmsg+0xee/0x170
[ 6573.767423][   T73]      __sys_sendmsg+0xcd/0x170
[ 6573.767423][   T73]      do_syscall_64+0xc6/0x1e0
[ 6573.767423][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6573.767423][   T73] 
[ 6573.769454][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6573.769454][   T73]      netdev_get_by_index+0x5e/0x80
[ 6573.769454][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6573.769454][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6573.769454][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6573.769454][   T73]      ipv6_add_addr+0x411/0x2000
[ 6573.769454][   T73]      inet6_addr_add+0x30e/0xa40
[ 6573.769454][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6573.769454][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6573.769454][   T73]      netlink_rcv_skb+0x130/0x360
[ 6573.769454][   T73]      netlink_unicast+0x449/0x710
[ 6573.769454][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6573.769454][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6573.769454][   T73]      ___sys_sendmsg+0xee/0x170
[ 6573.769454][   T73]      __sys_sendmsg+0xcd/0x170
[ 6573.769454][   T73]      do_syscall_64+0xc6/0x1e0
[ 6573.769454][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6573.769454][   T73] 
[ 6573.771492][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6573.771492][   T73]      netdev_get_by_index+0x5e/0x80
[ 6573.771492][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6573.771492][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6573.771492][   T73]      ip6_route_add+0x1c/0x140
[ 6573.771492][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6573.771492][   T73]      addrconf_add_dev+0xe2/0x170
[ 6573.771492][   T73]      inet6_addr_add+0x12f/0xa40
[ 6573.771492][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6573.771492][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6573.771492][   T73]      netlink_rcv_skb+0x130/0x360
[ 6573.771492][   T73]      netlink_unicast+0x449/0x710
[ 6573.771492][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6573.771492][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6573.771492][   T73]      ___sys_sendmsg+0xee/0x170
[ 6573.771492][   T73]      __sys_sendmsg+0xcd/0x170
[ 6573.771492][   T73]      do_syscall_64+0xc6/0x1e0
[ 6573.771492][   T73] 
[ 6573.773496][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6573.773496][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6573.773496][   T73]      ipv6_find_idev+0x102/0x170
[ 6573.773496][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6573.773496][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6573.773496][   T73]      netlink_rcv_skb+0x130/0x360
[ 6573.773496][   T73]      netlink_unicast+0x449/0x710
[ 6573.773496][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6573.773496][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6573.773496][   T73]      ___sys_sendmsg+0xee/0x170
[ 6573.773496][   T73]      __sys_sendmsg+0xcd/0x170
[ 6573.773496][   T73]      do_syscall_64+0xc6/0x1e0
[ 6573.773496][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6573.773496][   T73] 
[ 6573.775064][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6573.775064][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6573.775064][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6573.775064][   T73]      ipv6_find_idev+0x102/0x170
[ 6573.775064][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6573.775064][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6573.775064][   T73]      netlink_rcv_skb+0x130/0x360
[ 6573.775064][   T73]      netlink_unicast+0x449/0x710
[ 6573.775064][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6573.775064][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6573.775064][   T73]      ___sys_sendmsg+0xee/0x170
[ 6573.775064][   T73]      __sys_sendmsg+0xcd/0x170
[ 6573.775064][   T73]      do_syscall_64+0xc6/0x1e0
[ 6573.775064][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6573.775064][   T73] 
[ 6573.776792][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6573.777062][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6573.777062][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6573.777062][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6573.777062][   T73]      fib6_nh_init+0xa22/0x1580
[ 6573.777062][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6573.777062][   T73]      ip6_route_add+0x1c/0x140
[ 6573.777062][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6573.777062][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6573.777062][   T73]      netlink_rcv_skb+0x130/0x360
[ 6573.777062][   T73]      netlink_unicast+0x449/0x710
[ 6573.777062][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6573.777062][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6573.777062][   T73]      ___sys_sendmsg+0xee/0x170
[ 6573.777062][   T73]      __sys_sendmsg+0xcd/0x170
[ 6573.777062][   T73]      do_syscall_64+0xc6/0x1e0
[ 6573.777062][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6573.777062][   T73] 
[ 6573.779160][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6573.779160][   T73]      dst_init+0x84/0x4a0
[ 6573.779160][   T73]      dst_alloc+0x97/0x150
[ 6573.779160][   T73]      ip6_dst_alloc+0x23/0x90
[ 6573.779160][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6573.779160][   T73]      ip6_pol_route+0x56f/0x840
[ 6573.779160][   T73]      fib6_rule_lookup+0x456/0x630
[ 6573.779160][   T73]      ip6_route_input+0x59c/0xa50
[ 6573.779160][   T73]      ipv6_rcv+0x397/0x810
[ 6573.779160][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6573.779160][   T73]      process_backlog+0x101/0x620
[ 6573.779160][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6573.779160][   T73]      net_rx_action+0x495/0xbe0
[ 6573.779160][   T73]      __do_softirq+0x1b5/0x7f6
[ 6573.779160][   T73] 
[ 6573.781067][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6573.781067][   T73]      netdev_get_by_index+0x5e/0x80
[ 6573.781067][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6573.781067][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6573.781067][   T73]      ip6_route_add+0x1c/0x140
[ 6573.781067][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6573.781067][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6573.781067][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6573.781067][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6573.781067][   T73]      netlink_rcv_skb+0x130/0x360
[ 6573.781067][   T73]      netlink_unicast+0x449/0x710
[ 6573.781067][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6573.781067][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6573.781067][   T73]      ___sys_sendmsg+0xee/0x170
[ 6573.781067][   T73]      __sys_sendmsg+0xcd/0x170
[ 6573.781067][   T73]      do_syscall_64+0xc6/0x1e0
[ 6573.781067][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6573.781067][   T73] 
[ 6573.783325][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6573.783325][   T73]      netdev_get_by_index+0x5e/0x80
[ 6573.783325][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6573.783325][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6573.783325][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6573.783325][   T73]      ipv6_add_addr+0x411/0x2000
[ 6573.783325][   T73]      inet6_addr_add+0x30e/0xa40
[ 6573.783325][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6573.783325][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6573.783325][   T73]      netlink_rcv_skb+0x130/0x360
[ 6573.783325][   T73]      netlink_unicast+0x449/0x710
[ 6573.783325][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6573.783325][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6573.783325][   T73]      ___sys_sendmsg+0xee/0x170
[ 6573.783325][   T73]      __sys_sendmsg+0xcd/0x170
[ 6573.783325][   T73]      do_syscall_64+0xc6/0x1e0
[ 6573.783325][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6573.783325][   T73] 
[ 6573.785594][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6573.785594][   T73]      netdev_get_by_index+0x5e/0x80
[ 6573.785594][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6573.785594][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6573.785594][   T73]      ip6_route_add+0x1c/0x140
[ 6573.785594][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6573.785594][   T73]      addrconf_add_dev+0xe2/0x170
[ 6573.785594][   T73]      inet6_addr_add+0x12f/0xa40
[ 6573.785594][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6573.785594][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6573.785594][   T73]      netlink_rcv_skb+0x130/0x360
[ 6573.785594][   T73]      netlink_unicast+0x449/0x710
[ 6573.785594][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6573.785594][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6573.785594][   T73]      ___sys_sendmsg+0xee/0x170
[ 6573.785594][   T73]      __sys_sendmsg+0xcd/0x170
[ 6573.785594][   T73]      do_syscall_64+0xc6/0x1e0
[ 6573.785594][   T73] 
[ 6573.787833][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6573.787833][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6573.787833][   T73]      ipv6_find_idev+0x102/0x170
[ 6573.787833][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6573.787833][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6573.787833][   T73]      netlink_rcv_skb+0x130/0x360
[ 6573.787833][   T73]      netlink_unicast+0x449/0x710
[ 6573.787833][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6573.787833][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6573.787833][   T73]      ___sys_sendmsg+0xee/0x170
[ 6573.787833][   T73]      __sys_sendmsg+0xcd/0x170
[ 6573.787833][   T73]      do_syscall_64+0xc6/0x1e0
[ 6573.787833][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6573.787833][   T73] 
[ 6573.790152][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6573.790152][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6573.790152][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6573.790152][   T73]      ipv6_find_idev+0x102/0x170
[ 6573.790152][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6573.790152][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6573.790152][   T73]      netlink_rcv_skb+0x130/0x360
[ 6573.790152][   T73]      netlink_unicast+0x449/0x710
[ 6573.790152][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6573.790152][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6573.790152][   T73]      ___sys_sendmsg+0xee/0x170
[ 6573.790152][   T73]      __sys_sendmsg+0xcd/0x170
[ 6573.790152][   T73]      do_syscall_64+0xc6/0x1e0
[ 6573.790152][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6573.790152][   T73] 
[ 6573.792039][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6573.792314][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6573.792314][   T73]      netdev_get_by_index+0x5e/0x80
[ 6573.792314][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6573.792314][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6573.792314][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6573.792314][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6573.792314][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6573.792314][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6573.792314][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6573.792314][   T73]      addrconf_dad_begin+0x310/0x670
[ 6573.792314][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6573.792314][   T73]      process_one_work+0x84d/0x18a0
[ 6573.792314][   T73]      worker_thread+0x587/0xd30
[ 6573.792314][   T73]      kthread+0x28a/0x350
[ 6573.792314][   T73]      ret_from_fork+0x31/0x70
[ 6573.792314][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6573.792314][   T73] 
[ 6573.794490][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6573.794490][   T73]      netdev_get_by_index+0x5e/0x80
[ 6573.794490][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6573.794490][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6573.794490][   T73]      ip6_route_add+0x1c/0x140
[ 6573.794490][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6573.794490][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6573.794490][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6573.794490][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6573.794490][   T73]      netlink_rcv_skb+0x130/0x360
[ 6573.794490][   T73]      netlink_unicast+0x449/0x710
[ 6573.794490][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6573.794490][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6573.794490][   T73]      ___sys_sendmsg+0xee/0x170
[ 6573.794490][   T73]      __sys_sendmsg+0xcd/0x170
[ 6573.794490][   T73]      do_syscall_64+0xc6/0x1e0
[ 6573.794490][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6573.794490][   T73] 
[ 6573.796749][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6573.796749][   T73]      netdev_get_by_index+0x5e/0x80
[ 6573.796749][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6573.796749][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6573.796749][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6573.796749][   T73]      ipv6_add_addr+0x411/0x2000
[ 6573.796749][   T73]      inet6_addr_add+0x30e/0xa40
[ 6573.796749][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6573.796749][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6573.796749][   T73]      netlink_rcv_skb+0x130/0x360
[ 6573.796749][   T73]      netlink_unicast+0x449/0x710
[ 6573.796749][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6573.796749][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6573.796749][   T73]      ___sys_sendmsg+0xee/0x170
[ 6573.796749][   T73]      __sys_sendmsg+0xcd/0x170
[ 6573.796749][   T73]      do_syscall_64+0xc6/0x1e0
[ 6573.796749][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6573.796749][   T73] 
[ 6573.799064][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6573.799064][   T73]      netdev_get_by_index+0x5e/0x80
[ 6573.799064][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6573.799064][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6573.799064][   T73]      ip6_route_add+0x1c/0x140
[ 6573.799064][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6573.799064][   T73]      addrconf_add_dev+0xe2/0x170
[ 6573.799064][   T73]      inet6_addr_add+0x12f/0xa40
[ 6573.799064][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6573.799064][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6573.799064][   T73]      netlink_rcv_skb+0x130/0x360
[ 6573.799064][   T73]      netlink_unicast+0x449/0x710
[ 6573.799064][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6573.799064][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6573.799064][   T73]      ___sys_sendmsg+0xee/0x170
[ 6573.799064][   T73]      __sys_sendmsg+0xcd/0x170
[ 6573.799064][   T73]      do_syscall_64+0xc6/0x1e0
[ 6573.799064][   T73] 
[ 6573.801218][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6573.801218][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6573.801218][   T73]      ipv6_find_idev+0x102/0x170
[ 6573.801218][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6573.801218][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6573.801218][   T73]      netlink_rcv_skb+0x130/0x360
[ 6573.801218][   T73]      netlink_unicast+0x449/0x710
[ 6573.801218][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6573.801218][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6573.801218][   T73]      ___sys_sendmsg+0xee/0x170
[ 6573.801218][   T73]      __sys_sendmsg+0xcd/0x170
[ 6573.801218][   T73]      do_syscall_64+0xc6/0x1e0
[ 6573.801218][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6573.801218][   T73] 
[ 6573.802947][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6573.802947][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6573.802947][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6573.802947][   T73]      ipv6_find_idev+0x102/0x170
[ 6573.802947][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6573.802947][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6573.802947][   T73]      netlink_rcv_skb+0x130/0x360
[ 6573.802947][   T73]      netlink_unicast+0x449/0x710
[ 6573.802947][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6573.802947][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6573.802947][   T73]      ___sys_sendmsg+0xee/0x170
[ 6573.802947][   T73]      __sys_sendmsg+0xcd/0x170
[ 6573.802947][   T73]      do_syscall_64+0xc6/0x1e0
[ 6573.802947][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6573.802947][   T73] 
[ 6583.847748][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6583.848218][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6583.848218][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6583.848218][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6583.848218][   T73]      fib6_nh_init+0xa22/0x1580
[ 6583.848218][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6583.848218][   T73]      ip6_route_add+0x1c/0x140
[ 6583.848218][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6583.848218][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6583.848218][   T73]      netlink_rcv_skb+0x130/0x360
[ 6583.848218][   T73]      netlink_unicast+0x449/0x710
[ 6583.848218][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6583.848218][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6583.848218][   T73]      ___sys_sendmsg+0xee/0x170
[ 6583.848218][   T73]      __sys_sendmsg+0xcd/0x170
[ 6583.848218][   T73]      do_syscall_64+0xc6/0x1e0
[ 6583.848218][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6583.848218][   T73] 
[ 6583.850121][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6583.850121][   T73]      dst_init+0x84/0x4a0
[ 6583.850121][   T73]      dst_alloc+0x97/0x150
[ 6583.850121][   T73]      ip6_dst_alloc+0x23/0x90
[ 6583.850121][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6583.850121][   T73]      ip6_pol_route+0x56f/0x840
[ 6583.850121][   T73]      fib6_rule_lookup+0x456/0x630
[ 6583.850121][   T73]      ip6_route_input+0x59c/0xa50
[ 6583.850121][   T73]      ipv6_rcv+0x397/0x810
[ 6583.850121][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6583.850121][   T73]      process_backlog+0x101/0x620
[ 6583.850121][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6583.850121][   T73]      net_rx_action+0x495/0xbe0
[ 6583.850121][   T73]      __do_softirq+0x1b5/0x7f6
[ 6583.850121][   T73] 
[ 6583.851770][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6583.851770][   T73]      netdev_get_by_index+0x5e/0x80
[ 6583.851770][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6583.851770][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6583.851770][   T73]      ip6_route_add+0x1c/0x140
[ 6583.851770][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6583.851770][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6583.851770][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6583.851770][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6583.851770][   T73]      netlink_rcv_skb+0x130/0x360
[ 6583.851770][   T73]      netlink_unicast+0x449/0x710
[ 6583.851770][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6583.851770][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6583.851770][   T73]      ___sys_sendmsg+0xee/0x170
[ 6583.851770][   T73]      __sys_sendmsg+0xcd/0x170
[ 6583.851770][   T73]      do_syscall_64+0xc6/0x1e0
[ 6583.851770][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6583.851770][   T73] 
[ 6583.853785][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6583.853785][   T73]      netdev_get_by_index+0x5e/0x80
[ 6583.853785][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6583.853785][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6583.853785][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6583.853785][   T73]      ipv6_add_addr+0x411/0x2000
[ 6583.853785][   T73]      inet6_addr_add+0x30e/0xa40
[ 6583.853785][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6583.853785][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6583.853785][   T73]      netlink_rcv_skb+0x130/0x360
[ 6583.853785][   T73]      netlink_unicast+0x449/0x710
[ 6583.853785][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6583.853785][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6583.853785][   T73]      ___sys_sendmsg+0xee/0x170
[ 6583.853785][   T73]      __sys_sendmsg+0xcd/0x170
[ 6583.853785][   T73]      do_syscall_64+0xc6/0x1e0
[ 6583.853785][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6583.853785][   T73] 
[ 6583.855793][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6583.855793][   T73]      netdev_get_by_index+0x5e/0x80
[ 6583.855793][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6583.855793][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6583.855793][   T73]      ip6_route_add+0x1c/0x140
[ 6583.855793][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6583.855793][   T73]      addrconf_add_dev+0xe2/0x170
[ 6583.855793][   T73]      inet6_addr_add+0x12f/0xa40
[ 6583.855793][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6583.855793][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6583.855793][   T73]      netlink_rcv_skb+0x130/0x360
[ 6583.855793][   T73]      netlink_unicast+0x449/0x710
[ 6583.855793][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6583.855793][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6583.855793][   T73]      ___sys_sendmsg+0xee/0x170
[ 6583.855793][   T73]      __sys_sendmsg+0xcd/0x170
[ 6583.855793][   T73]      do_syscall_64+0xc6/0x1e0
[ 6583.855793][   T73] 
[ 6583.857761][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6583.857761][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6583.857761][   T73]      ipv6_find_idev+0x102/0x170
[ 6583.857761][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6583.857761][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6583.857761][   T73]      netlink_rcv_skb+0x130/0x360
[ 6583.857761][   T73]      netlink_unicast+0x449/0x710
[ 6583.857761][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6583.857761][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6583.857761][   T73]      ___sys_sendmsg+0xee/0x170
[ 6583.857761][   T73]      __sys_sendmsg+0xcd/0x170
[ 6583.857761][   T73]      do_syscall_64+0xc6/0x1e0
[ 6583.857761][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6583.857761][   T73] 
[ 6583.859305][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6583.859305][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6583.859305][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6583.859305][   T73]      ipv6_find_idev+0x102/0x170
[ 6583.859305][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6583.859305][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6583.859305][   T73]      netlink_rcv_skb+0x130/0x360
[ 6583.859305][   T73]      netlink_unicast+0x449/0x710
[ 6583.859305][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6583.859305][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6583.859305][   T73]      ___sys_sendmsg+0xee/0x170
[ 6583.859305][   T73]      __sys_sendmsg+0xcd/0x170
[ 6583.859305][   T73]      do_syscall_64+0xc6/0x1e0
[ 6583.859305][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6583.859305][   T73] 
[ 6583.860996][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6583.861267][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6583.861267][   T73]      netdev_get_by_index+0x5e/0x80
[ 6583.861267][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6583.861267][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6583.861267][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6583.861267][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6583.861267][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6583.861267][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6583.861267][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6583.861267][   T73]      addrconf_dad_begin+0x310/0x670
[ 6583.861267][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6583.861267][   T73]      process_one_work+0x84d/0x18a0
[ 6583.861267][   T73]      worker_thread+0x587/0xd30
[ 6583.861267][   T73]      kthread+0x28a/0x350
[ 6583.861267][   T73]      ret_from_fork+0x31/0x70
[ 6583.861267][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6583.861267][   T73] 
[ 6583.863194][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6583.863194][   T73]      netdev_get_by_index+0x5e/0x80
[ 6583.863194][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6583.863194][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6583.863194][   T73]      ip6_route_add+0x1c/0x140
[ 6583.863194][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6583.863194][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6583.863194][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6583.863194][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6583.863194][   T73]      netlink_rcv_skb+0x130/0x360
[ 6583.863194][   T73]      netlink_unicast+0x449/0x710
[ 6583.863194][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6583.863194][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6583.863194][   T73]      ___sys_sendmsg+0xee/0x170
[ 6583.863194][   T73]      __sys_sendmsg+0xcd/0x170
[ 6583.863194][   T73]      do_syscall_64+0xc6/0x1e0
[ 6583.863194][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6583.863194][   T73] 
[ 6583.865215][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6583.865215][   T73]      netdev_get_by_index+0x5e/0x80
[ 6583.865215][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6583.865215][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6583.865215][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6583.865215][   T73]      ipv6_add_addr+0x411/0x2000
[ 6583.865215][   T73]      inet6_addr_add+0x30e/0xa40
[ 6583.865215][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6583.865215][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6583.865215][   T73]      netlink_rcv_skb+0x130/0x360
[ 6583.865215][   T73]      netlink_unicast+0x449/0x710
[ 6583.865215][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6583.865215][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6583.865215][   T73]      ___sys_sendmsg+0xee/0x170
[ 6583.865215][   T73]      __sys_sendmsg+0xcd/0x170
[ 6583.865215][   T73]      do_syscall_64+0xc6/0x1e0
[ 6583.865215][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6583.865215][   T73] 
[ 6583.867206][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6583.867206][   T73]      netdev_get_by_index+0x5e/0x80
[ 6583.867206][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6583.867206][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6583.867206][   T73]      ip6_route_add+0x1c/0x140
[ 6583.867206][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6583.867206][   T73]      addrconf_add_dev+0xe2/0x170
[ 6583.867206][   T73]      inet6_addr_add+0x12f/0xa40
[ 6583.867206][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6583.867206][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6583.867206][   T73]      netlink_rcv_skb+0x130/0x360
[ 6583.867206][   T73]      netlink_unicast+0x449/0x710
[ 6583.867206][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6583.867206][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6583.867206][   T73]      ___sys_sendmsg+0xee/0x170
[ 6583.867206][   T73]      __sys_sendmsg+0xcd/0x170
[ 6583.867206][   T73]      do_syscall_64+0xc6/0x1e0
[ 6583.867206][   T73] 
[ 6583.869176][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6583.869176][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6583.869176][   T73]      ipv6_find_idev+0x102/0x170
[ 6583.869176][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6583.869176][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6583.869176][   T73]      netlink_rcv_skb+0x130/0x360
[ 6583.869176][   T73]      netlink_unicast+0x449/0x710
[ 6583.869176][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6583.869176][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6583.869176][   T73]      ___sys_sendmsg+0xee/0x170
[ 6583.869176][   T73]      __sys_sendmsg+0xcd/0x170
[ 6583.869176][   T73]      do_syscall_64+0xc6/0x1e0
[ 6583.869176][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6583.869176][   T73] 
[ 6583.870714][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6583.870714][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6583.870714][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6583.870714][   T73]      ipv6_find_idev+0x102/0x170
[ 6583.870714][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6583.870714][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6583.870714][   T73]      netlink_rcv_skb+0x130/0x360
[ 6583.870714][   T73]      netlink_unicast+0x449/0x710
[ 6583.870714][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6583.870714][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6583.870714][   T73]      ___sys_sendmsg+0xee/0x170
[ 6583.870714][   T73]      __sys_sendmsg+0xcd/0x170
[ 6583.870714][   T73]      do_syscall_64+0xc6/0x1e0
[ 6583.870714][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6583.870714][   T73] 
[ 6583.872419][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6583.872689][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6583.872689][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6583.872689][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6583.872689][   T73]      fib6_nh_init+0xa22/0x1580
[ 6583.872689][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6583.872689][   T73]      ip6_route_add+0x1c/0x140
[ 6583.872689][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6583.872689][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6583.872689][   T73]      netlink_rcv_skb+0x130/0x360
[ 6583.872689][   T73]      netlink_unicast+0x449/0x710
[ 6583.872689][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6583.872689][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6583.872689][   T73]      ___sys_sendmsg+0xee/0x170
[ 6583.872689][   T73]      __sys_sendmsg+0xcd/0x170
[ 6583.872689][   T73]      do_syscall_64+0xc6/0x1e0
[ 6583.872689][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6583.872689][   T73] 
[ 6583.874760][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6583.874760][   T73]      dst_init+0x84/0x4a0
[ 6583.874760][   T73]      dst_alloc+0x97/0x150
[ 6583.874760][   T73]      ip6_dst_alloc+0x23/0x90
[ 6583.874760][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6583.874760][   T73]      ip6_pol_route+0x56f/0x840
[ 6583.874760][   T73]      fib6_rule_lookup+0x456/0x630
[ 6583.874760][   T73]      ip6_route_input+0x59c/0xa50
[ 6583.874760][   T73]      ipv6_rcv+0x397/0x810
[ 6583.874760][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6583.874760][   T73]      process_backlog+0x101/0x620
[ 6583.874760][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6583.874760][   T73]      net_rx_action+0x495/0xbe0
[ 6583.874760][   T73]      __do_softirq+0x1b5/0x7f6
[ 6583.874760][   T73] 
[ 6583.876633][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6583.876633][   T73]      netdev_get_by_index+0x5e/0x80
[ 6583.876633][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6583.876633][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6583.876633][   T73]      ip6_route_add+0x1c/0x140
[ 6583.876633][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6583.876633][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6583.876633][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6583.876633][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6583.876633][   T73]      netlink_rcv_skb+0x130/0x360
[ 6583.876633][   T73]      netlink_unicast+0x449/0x710
[ 6583.876633][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6583.876633][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6583.876633][   T73]      ___sys_sendmsg+0xee/0x170
[ 6583.876633][   T73]      __sys_sendmsg+0xcd/0x170
[ 6583.876633][   T73]      do_syscall_64+0xc6/0x1e0
[ 6583.876633][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6583.876633][   T73] 
[ 6583.878877][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6583.878877][   T73]      netdev_get_by_index+0x5e/0x80
[ 6583.878877][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6583.878877][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6583.878877][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6583.878877][   T73]      ipv6_add_addr+0x411/0x2000
[ 6583.878877][   T73]      inet6_addr_add+0x30e/0xa40
[ 6583.878877][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6583.878877][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6583.878877][   T73]      netlink_rcv_skb+0x130/0x360
[ 6583.878877][   T73]      netlink_unicast+0x449/0x710
[ 6583.878877][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6583.878877][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6583.878877][   T73]      ___sys_sendmsg+0xee/0x170
[ 6583.878877][   T73]      __sys_sendmsg+0xcd/0x170
[ 6583.878877][   T73]      do_syscall_64+0xc6/0x1e0
[ 6583.878877][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6583.878877][   T73] 
[ 6583.881116][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6583.881116][   T73]      netdev_get_by_index+0x5e/0x80
[ 6583.881116][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6583.881116][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6583.881116][   T73]      ip6_route_add+0x1c/0x140
[ 6583.881116][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6583.881116][   T73]      addrconf_add_dev+0xe2/0x170
[ 6583.881116][   T73]      inet6_addr_add+0x12f/0xa40
[ 6583.881116][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6583.881116][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6583.881116][   T73]      netlink_rcv_skb+0x130/0x360
[ 6583.881116][   T73]      netlink_unicast+0x449/0x710
[ 6583.881116][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6583.881116][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6583.881116][   T73]      ___sys_sendmsg+0xee/0x170
[ 6583.881116][   T73]      __sys_sendmsg+0xcd/0x170
[ 6583.881116][   T73]      do_syscall_64+0xc6/0x1e0
[ 6583.881116][   T73] 
[ 6583.883259][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6583.883259][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6583.883259][   T73]      ipv6_find_idev+0x102/0x170
[ 6583.883259][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6583.883259][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6583.883259][   T73]      netlink_rcv_skb+0x130/0x360
[ 6583.883259][   T73]      netlink_unicast+0x449/0x710
[ 6583.883259][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6583.883259][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6583.883259][   T73]      ___sys_sendmsg+0xee/0x170
[ 6583.883259][   T73]      __sys_sendmsg+0xcd/0x170
[ 6583.883259][   T73]      do_syscall_64+0xc6/0x1e0
[ 6583.883259][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6583.883259][   T73] 
[ 6583.885053][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6583.885053][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6583.885053][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6583.885053][   T73]      ipv6_find_idev+0x102/0x170
[ 6583.885053][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6583.885053][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6583.885053][   T73]      netlink_rcv_skb+0x130/0x360
[ 6583.885053][   T73]      netlink_unicast+0x449/0x710
[ 6583.885053][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6583.885053][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6583.885053][   T73]      ___sys_sendmsg+0xee/0x170
[ 6583.885053][   T73]      __sys_sendmsg+0xcd/0x170
[ 6583.885053][   T73]      do_syscall_64+0xc6/0x1e0
[ 6583.885053][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6583.885053][   T73] 
[ 6583.886976][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6583.887241][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6583.887241][   T73]      netdev_get_by_index+0x5e/0x80
[ 6583.887241][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6583.887241][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6583.887241][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6583.887241][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6583.887241][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6583.887241][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6583.887241][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6583.887241][   T73]      addrconf_dad_begin+0x310/0x670
[ 6583.887241][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6583.887241][   T73]      process_one_work+0x84d/0x18a0
[ 6583.887241][   T73]      worker_thread+0x587/0xd30
[ 6583.887241][   T73]      kthread+0x28a/0x350
[ 6583.887241][   T73]      ret_from_fork+0x31/0x70
[ 6583.887241][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6583.887241][   T73] 
[ 6583.889413][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6583.889413][   T73]      netdev_get_by_index+0x5e/0x80
[ 6583.889413][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6583.889413][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6583.889413][   T73]      ip6_route_add+0x1c/0x140
[ 6583.889413][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6583.889413][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6583.889413][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6583.889413][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6583.889413][   T73]      netlink_rcv_skb+0x130/0x360
[ 6583.889413][   T73]      netlink_unicast+0x449/0x710
[ 6583.889413][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6583.889413][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6583.889413][   T73]      ___sys_sendmsg+0xee/0x170
[ 6583.889413][   T73]      __sys_sendmsg+0xcd/0x170
[ 6583.889413][   T73]      do_syscall_64+0xc6/0x1e0
[ 6583.889413][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6583.889413][   T73] 
[ 6583.891653][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6583.891653][   T73]      netdev_get_by_index+0x5e/0x80
[ 6583.891653][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6583.891653][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6583.891653][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6583.891653][   T73]      ipv6_add_addr+0x411/0x2000
[ 6583.891653][   T73]      inet6_addr_add+0x30e/0xa40
[ 6583.891653][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6583.891653][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6583.891653][   T73]      netlink_rcv_skb+0x130/0x360
[ 6583.891653][   T73]      netlink_unicast+0x449/0x710
[ 6583.891653][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6583.891653][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6583.891653][   T73]      ___sys_sendmsg+0xee/0x170
[ 6583.891653][   T73]      __sys_sendmsg+0xcd/0x170
[ 6583.891653][   T73]      do_syscall_64+0xc6/0x1e0
[ 6583.891653][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6583.891653][   T73] 
[ 6583.893833][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6583.893833][   T73]      netdev_get_by_index+0x5e/0x80
[ 6583.893833][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6583.893833][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6583.893833][   T73]      ip6_route_add+0x1c/0x140
[ 6583.893833][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6583.893833][   T73]      addrconf_add_dev+0xe2/0x170
[ 6583.893833][   T73]      inet6_addr_add+0x12f/0xa40
[ 6583.893833][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6583.893833][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6583.893833][   T73]      netlink_rcv_skb+0x130/0x360
[ 6583.893833][   T73]      netlink_unicast+0x449/0x710
[ 6583.893833][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6583.893833][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6583.893833][   T73]      ___sys_sendmsg+0xee/0x170
[ 6583.893833][   T73]      __sys_sendmsg+0xcd/0x170
[ 6583.893833][   T73]      do_syscall_64+0xc6/0x1e0
[ 6583.893833][   T73] 
[ 6583.896096][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6583.896096][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6583.896096][   T73]      ipv6_find_idev+0x102/0x170
[ 6583.896096][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6583.896096][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6583.896096][   T73]      netlink_rcv_skb+0x130/0x360
[ 6583.896096][   T73]      netlink_unicast+0x449/0x710
[ 6583.896096][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6583.896096][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6583.896096][   T73]      ___sys_sendmsg+0xee/0x170
[ 6583.896096][   T73]      __sys_sendmsg+0xcd/0x170
[ 6583.896096][   T73]      do_syscall_64+0xc6/0x1e0
[ 6583.896096][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6583.896096][   T73] 
[ 6583.897819][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6583.897819][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6583.897819][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6583.897819][   T73]      ipv6_find_idev+0x102/0x170
[ 6583.897819][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6583.897819][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6583.897819][   T73]      netlink_rcv_skb+0x130/0x360
[ 6583.897819][   T73]      netlink_unicast+0x449/0x710
[ 6583.897819][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6583.897819][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6583.897819][   T73]      ___sys_sendmsg+0xee/0x170
[ 6583.897819][   T73]      __sys_sendmsg+0xcd/0x170
[ 6583.897819][   T73]      do_syscall_64+0xc6/0x1e0
[ 6583.897819][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6583.897819][   T73] 
[ 6594.039681][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6594.040136][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6594.040136][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6594.040136][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6594.040136][   T73]      fib6_nh_init+0xa22/0x1580
[ 6594.040136][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6594.040136][   T73]      ip6_route_add+0x1c/0x140
[ 6594.040136][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6594.040136][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6594.040136][   T73]      netlink_rcv_skb+0x130/0x360
[ 6594.040136][   T73]      netlink_unicast+0x449/0x710
[ 6594.040136][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6594.040136][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6594.040136][   T73]      ___sys_sendmsg+0xee/0x170
[ 6594.040136][   T73]      __sys_sendmsg+0xcd/0x170
[ 6594.040136][   T73]      do_syscall_64+0xc6/0x1e0
[ 6594.040136][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6594.040136][   T73] 
[ 6594.042041][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6594.042041][   T73]      dst_init+0x84/0x4a0
[ 6594.042041][   T73]      dst_alloc+0x97/0x150
[ 6594.042041][   T73]      ip6_dst_alloc+0x23/0x90
[ 6594.042041][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6594.042041][   T73]      ip6_pol_route+0x56f/0x840
[ 6594.042041][   T73]      fib6_rule_lookup+0x456/0x630
[ 6594.042041][   T73]      ip6_route_input+0x59c/0xa50
[ 6594.042041][   T73]      ipv6_rcv+0x397/0x810
[ 6594.042041][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6594.042041][   T73]      process_backlog+0x101/0x620
[ 6594.042041][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6594.042041][   T73]      net_rx_action+0x495/0xbe0
[ 6594.042041][   T73]      __do_softirq+0x1b5/0x7f6
[ 6594.042041][   T73] 
[ 6594.043685][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6594.043685][   T73]      netdev_get_by_index+0x5e/0x80
[ 6594.043685][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6594.043685][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6594.043685][   T73]      ip6_route_add+0x1c/0x140
[ 6594.043685][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6594.043685][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6594.043685][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6594.043685][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6594.043685][   T73]      netlink_rcv_skb+0x130/0x360
[ 6594.043685][   T73]      netlink_unicast+0x449/0x710
[ 6594.043685][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6594.043685][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6594.043685][   T73]      ___sys_sendmsg+0xee/0x170
[ 6594.043685][   T73]      __sys_sendmsg+0xcd/0x170
[ 6594.043685][   T73]      do_syscall_64+0xc6/0x1e0
[ 6594.043685][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6594.043685][   T73] 
[ 6594.045694][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6594.045694][   T73]      netdev_get_by_index+0x5e/0x80
[ 6594.045694][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6594.045694][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6594.045694][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6594.045694][   T73]      ipv6_add_addr+0x411/0x2000
[ 6594.045694][   T73]      inet6_addr_add+0x30e/0xa40
[ 6594.045694][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6594.045694][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6594.045694][   T73]      netlink_rcv_skb+0x130/0x360
[ 6594.045694][   T73]      netlink_unicast+0x449/0x710
[ 6594.045694][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6594.045694][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6594.045694][   T73]      ___sys_sendmsg+0xee/0x170
[ 6594.045694][   T73]      __sys_sendmsg+0xcd/0x170
[ 6594.045694][   T73]      do_syscall_64+0xc6/0x1e0
[ 6594.045694][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6594.045694][   T73] 
[ 6594.047702][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6594.047702][   T73]      netdev_get_by_index+0x5e/0x80
[ 6594.047702][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6594.047702][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6594.047702][   T73]      ip6_route_add+0x1c/0x140
[ 6594.047702][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6594.047702][   T73]      addrconf_add_dev+0xe2/0x170
[ 6594.047702][   T73]      inet6_addr_add+0x12f/0xa40
[ 6594.047702][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6594.047702][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6594.047702][   T73]      netlink_rcv_skb+0x130/0x360
[ 6594.047702][   T73]      netlink_unicast+0x449/0x710
[ 6594.047702][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6594.047702][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6594.047702][   T73]      ___sys_sendmsg+0xee/0x170
[ 6594.047702][   T73]      __sys_sendmsg+0xcd/0x170
[ 6594.047702][   T73]      do_syscall_64+0xc6/0x1e0
[ 6594.047702][   T73] 
[ 6594.049656][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6594.049656][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6594.049656][   T73]      ipv6_find_idev+0x102/0x170
[ 6594.049656][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6594.049656][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6594.049656][   T73]      netlink_rcv_skb+0x130/0x360
[ 6594.049656][   T73]      netlink_unicast+0x449/0x710
[ 6594.049656][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6594.049656][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6594.049656][   T73]      ___sys_sendmsg+0xee/0x170
[ 6594.049656][   T73]      __sys_sendmsg+0xcd/0x170
[ 6594.049656][   T73]      do_syscall_64+0xc6/0x1e0
[ 6594.049656][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6594.049656][   T73] 
[ 6594.051201][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6594.051201][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6594.051201][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6594.051201][   T73]      ipv6_find_idev+0x102/0x170
[ 6594.051201][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6594.051201][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6594.051201][   T73]      netlink_rcv_skb+0x130/0x360
[ 6594.051201][   T73]      netlink_unicast+0x449/0x710
[ 6594.051201][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6594.051201][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6594.051201][   T73]      ___sys_sendmsg+0xee/0x170
[ 6594.051201][   T73]      __sys_sendmsg+0xcd/0x170
[ 6594.051201][   T73]      do_syscall_64+0xc6/0x1e0
[ 6594.051201][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6594.051201][   T73] 
[ 6594.052901][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6594.053190][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6594.053190][   T73]      netdev_get_by_index+0x5e/0x80
[ 6594.053190][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6594.053190][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6594.053190][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6594.053190][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6594.053190][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6594.053190][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6594.053190][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6594.053190][   T73]      addrconf_dad_begin+0x310/0x670
[ 6594.053190][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6594.053190][   T73]      process_one_work+0x84d/0x18a0
[ 6594.053190][   T73]      worker_thread+0x587/0xd30
[ 6594.053190][   T73]      kthread+0x28a/0x350
[ 6594.053190][   T73]      ret_from_fork+0x31/0x70
[ 6594.053190][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6594.053190][   T73] 
[ 6594.055132][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6594.055132][   T73]      netdev_get_by_index+0x5e/0x80
[ 6594.055132][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6594.055132][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6594.055132][   T73]      ip6_route_add+0x1c/0x140
[ 6594.055132][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6594.055132][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6594.055132][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6594.055132][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6594.055132][   T73]      netlink_rcv_skb+0x130/0x360
[ 6594.055132][   T73]      netlink_unicast+0x449/0x710
[ 6594.055132][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6594.055132][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6594.055132][   T73]      ___sys_sendmsg+0xee/0x170
[ 6594.055132][   T73]      __sys_sendmsg+0xcd/0x170
[ 6594.055132][   T73]      do_syscall_64+0xc6/0x1e0
[ 6594.055132][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6594.055132][   T73] 
[ 6594.057145][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6594.057145][   T73]      netdev_get_by_index+0x5e/0x80
[ 6594.057145][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6594.057145][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6594.057145][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6594.057145][   T73]      ipv6_add_addr+0x411/0x2000
[ 6594.057145][   T73]      inet6_addr_add+0x30e/0xa40
[ 6594.057145][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6594.057145][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6594.057145][   T73]      netlink_rcv_skb+0x130/0x360
[ 6594.057145][   T73]      netlink_unicast+0x449/0x710
[ 6594.057145][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6594.057145][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6594.057145][   T73]      ___sys_sendmsg+0xee/0x170
[ 6594.057145][   T73]      __sys_sendmsg+0xcd/0x170
[ 6594.057145][   T73]      do_syscall_64+0xc6/0x1e0
[ 6594.057145][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6594.057145][   T73] 
[ 6594.059147][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6594.059147][   T73]      netdev_get_by_index+0x5e/0x80
[ 6594.059147][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6594.059147][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6594.059147][   T73]      ip6_route_add+0x1c/0x140
[ 6594.059147][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6594.059147][   T73]      addrconf_add_dev+0xe2/0x170
[ 6594.059147][   T73]      inet6_addr_add+0x12f/0xa40
[ 6594.059147][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6594.059147][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6594.059147][   T73]      netlink_rcv_skb+0x130/0x360
[ 6594.059147][   T73]      netlink_unicast+0x449/0x710
[ 6594.059147][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6594.059147][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6594.059147][   T73]      ___sys_sendmsg+0xee/0x170
[ 6594.059147][   T73]      __sys_sendmsg+0xcd/0x170
[ 6594.059147][   T73]      do_syscall_64+0xc6/0x1e0
[ 6594.059147][   T73] 
[ 6594.061125][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6594.061125][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6594.061125][   T73]      ipv6_find_idev+0x102/0x170
[ 6594.061125][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6594.061125][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6594.061125][   T73]      netlink_rcv_skb+0x130/0x360
[ 6594.061125][   T73]      netlink_unicast+0x449/0x710
[ 6594.061125][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6594.061125][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6594.061125][   T73]      ___sys_sendmsg+0xee/0x170
[ 6594.061125][   T73]      __sys_sendmsg+0xcd/0x170
[ 6594.061125][   T73]      do_syscall_64+0xc6/0x1e0
[ 6594.061125][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6594.061125][   T73] 
[ 6594.062683][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6594.062683][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6594.062683][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6594.062683][   T73]      ipv6_find_idev+0x102/0x170
[ 6594.062683][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6594.062683][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6594.062683][   T73]      netlink_rcv_skb+0x130/0x360
[ 6594.062683][   T73]      netlink_unicast+0x449/0x710
[ 6594.062683][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6594.062683][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6594.062683][   T73]      ___sys_sendmsg+0xee/0x170
[ 6594.062683][   T73]      __sys_sendmsg+0xcd/0x170
[ 6594.062683][   T73]      do_syscall_64+0xc6/0x1e0
[ 6594.062683][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6594.062683][   T73] 
[ 6594.064371][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6594.064658][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6594.064658][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6594.064658][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6594.064658][   T73]      fib6_nh_init+0xa22/0x1580
[ 6594.064658][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6594.064658][   T73]      ip6_route_add+0x1c/0x140
[ 6594.064658][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6594.064658][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6594.064658][   T73]      netlink_rcv_skb+0x130/0x360
[ 6594.064658][   T73]      netlink_unicast+0x449/0x710
[ 6594.064658][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6594.064658][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6594.064658][   T73]      ___sys_sendmsg+0xee/0x170
[ 6594.064658][   T73]      __sys_sendmsg+0xcd/0x170
[ 6594.064658][   T73]      do_syscall_64+0xc6/0x1e0
[ 6594.064658][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6594.064658][   T73] 
[ 6594.066713][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6594.066713][   T73]      dst_init+0x84/0x4a0
[ 6594.066713][   T73]      dst_alloc+0x97/0x150
[ 6594.066713][   T73]      ip6_dst_alloc+0x23/0x90
[ 6594.066713][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6594.066713][   T73]      ip6_pol_route+0x56f/0x840
[ 6594.066713][   T73]      fib6_rule_lookup+0x456/0x630
[ 6594.066713][   T73]      ip6_route_input+0x59c/0xa50
[ 6594.066713][   T73]      ipv6_rcv+0x397/0x810
[ 6594.066713][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6594.066713][   T73]      process_backlog+0x101/0x620
[ 6594.066713][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6594.066713][   T73]      net_rx_action+0x495/0xbe0
[ 6594.066713][   T73]      __do_softirq+0x1b5/0x7f6
[ 6594.066713][   T73] 
[ 6594.068566][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6594.068566][   T73]      netdev_get_by_index+0x5e/0x80
[ 6594.068566][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6594.068566][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6594.068566][   T73]      ip6_route_add+0x1c/0x140
[ 6594.068566][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6594.068566][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6594.068566][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6594.068566][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6594.068566][   T73]      netlink_rcv_skb+0x130/0x360
[ 6594.068566][   T73]      netlink_unicast+0x449/0x710
[ 6594.068566][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6594.068566][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6594.068566][   T73]      ___sys_sendmsg+0xee/0x170
[ 6594.068566][   T73]      __sys_sendmsg+0xcd/0x170
[ 6594.068566][   T73]      do_syscall_64+0xc6/0x1e0
[ 6594.068566][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6594.068566][   T73] 
[ 6594.070813][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6594.070813][   T73]      netdev_get_by_index+0x5e/0x80
[ 6594.070813][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6594.070813][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6594.070813][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6594.070813][   T73]      ipv6_add_addr+0x411/0x2000
[ 6594.070813][   T73]      inet6_addr_add+0x30e/0xa40
[ 6594.070813][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6594.070813][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6594.070813][   T73]      netlink_rcv_skb+0x130/0x360
[ 6594.070813][   T73]      netlink_unicast+0x449/0x710
[ 6594.070813][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6594.070813][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6594.070813][   T73]      ___sys_sendmsg+0xee/0x170
[ 6594.070813][   T73]      __sys_sendmsg+0xcd/0x170
[ 6594.070813][   T73]      do_syscall_64+0xc6/0x1e0
[ 6594.070813][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6594.070813][   T73] 
[ 6594.073054][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6594.073054][   T73]      netdev_get_by_index+0x5e/0x80
[ 6594.073054][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6594.073054][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6594.073054][   T73]      ip6_route_add+0x1c/0x140
[ 6594.073054][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6594.073054][   T73]      addrconf_add_dev+0xe2/0x170
[ 6594.073054][   T73]      inet6_addr_add+0x12f/0xa40
[ 6594.073054][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6594.073054][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6594.073054][   T73]      netlink_rcv_skb+0x130/0x360
[ 6594.073054][   T73]      netlink_unicast+0x449/0x710
[ 6594.073054][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6594.073054][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6594.073054][   T73]      ___sys_sendmsg+0xee/0x170
[ 6594.073054][   T73]      __sys_sendmsg+0xcd/0x170
[ 6594.073054][   T73]      do_syscall_64+0xc6/0x1e0
[ 6594.073054][   T73] 
[ 6594.075211][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6594.075211][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6594.075211][   T73]      ipv6_find_idev+0x102/0x170
[ 6594.075211][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6594.075211][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6594.075211][   T73]      netlink_rcv_skb+0x130/0x360
[ 6594.075211][   T73]      netlink_unicast+0x449/0x710
[ 6594.075211][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6594.075211][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6594.075211][   T73]      ___sys_sendmsg+0xee/0x170
[ 6594.075211][   T73]      __sys_sendmsg+0xcd/0x170
[ 6594.075211][   T73]      do_syscall_64+0xc6/0x1e0
[ 6594.075211][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6594.075211][   T73] 
[ 6594.076933][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6594.076933][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6594.076933][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6594.076933][   T73]      ipv6_find_idev+0x102/0x170
[ 6594.076933][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6594.076933][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6594.076933][   T73]      netlink_rcv_skb+0x130/0x360
[ 6594.076933][   T73]      netlink_unicast+0x449/0x710
[ 6594.076933][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6594.076933][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6594.076933][   T73]      ___sys_sendmsg+0xee/0x170
[ 6594.076933][   T73]      __sys_sendmsg+0xcd/0x170
[ 6594.076933][   T73]      do_syscall_64+0xc6/0x1e0
[ 6594.076933][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6594.076933][   T73] 
[ 6594.078870][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6594.079144][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6594.079144][   T73]      netdev_get_by_index+0x5e/0x80
[ 6594.079144][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6594.079144][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6594.079144][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6594.079144][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6594.079144][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6594.079144][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6594.079144][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6594.079144][   T73]      addrconf_dad_begin+0x310/0x670
[ 6594.079144][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6594.079144][   T73]      process_one_work+0x84d/0x18a0
[ 6594.079144][   T73]      worker_thread+0x587/0xd30
[ 6594.079144][   T73]      kthread+0x28a/0x350
[ 6594.079144][   T73]      ret_from_fork+0x31/0x70
[ 6594.079144][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6594.079144][   T73] 
[ 6594.081304][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6594.081304][   T73]      netdev_get_by_index+0x5e/0x80
[ 6594.081304][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6594.081304][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6594.081304][   T73]      ip6_route_add+0x1c/0x140
[ 6594.081304][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6594.081304][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6594.081304][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6594.081304][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6594.081304][   T73]      netlink_rcv_skb+0x130/0x360
[ 6594.081304][   T73]      netlink_unicast+0x449/0x710
[ 6594.081304][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6594.081304][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6594.081304][   T73]      ___sys_sendmsg+0xee/0x170
[ 6594.081304][   T73]      __sys_sendmsg+0xcd/0x170
[ 6594.081304][   T73]      do_syscall_64+0xc6/0x1e0
[ 6594.081304][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6594.081304][   T73] 
[ 6594.083554][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6594.083554][   T73]      netdev_get_by_index+0x5e/0x80
[ 6594.083554][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6594.083554][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6594.083554][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6594.083554][   T73]      ipv6_add_addr+0x411/0x2000
[ 6594.083554][   T73]      inet6_addr_add+0x30e/0xa40
[ 6594.083554][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6594.083554][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6594.083554][   T73]      netlink_rcv_skb+0x130/0x360
[ 6594.083554][   T73]      netlink_unicast+0x449/0x710
[ 6594.083554][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6594.083554][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6594.083554][   T73]      ___sys_sendmsg+0xee/0x170
[ 6594.083554][   T73]      __sys_sendmsg+0xcd/0x170
[ 6594.083554][   T73]      do_syscall_64+0xc6/0x1e0
[ 6594.083554][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6594.083554][   T73] 
[ 6594.085817][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6594.085817][   T73]      netdev_get_by_index+0x5e/0x80
[ 6594.085817][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6594.085817][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6594.085817][   T73]      ip6_route_add+0x1c/0x140
[ 6594.085817][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6594.085817][   T73]      addrconf_add_dev+0xe2/0x170
[ 6594.085817][   T73]      inet6_addr_add+0x12f/0xa40
[ 6594.085817][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6594.085817][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6594.085817][   T73]      netlink_rcv_skb+0x130/0x360
[ 6594.085817][   T73]      netlink_unicast+0x449/0x710
[ 6594.085817][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6594.085817][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6594.085817][   T73]      ___sys_sendmsg+0xee/0x170
[ 6594.085817][   T73]      __sys_sendmsg+0xcd/0x170
[ 6594.085817][   T73]      do_syscall_64+0xc6/0x1e0
[ 6594.085817][   T73] 
[ 6594.088026][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6594.088026][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6594.088026][   T73]      ipv6_find_idev+0x102/0x170
[ 6594.088026][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6594.088026][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6594.088026][   T73]      netlink_rcv_skb+0x130/0x360
[ 6594.088026][   T73]      netlink_unicast+0x449/0x710
[ 6594.088026][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6594.088026][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6594.088026][   T73]      ___sys_sendmsg+0xee/0x170
[ 6594.088026][   T73]      __sys_sendmsg+0xcd/0x170
[ 6594.088026][   T73]      do_syscall_64+0xc6/0x1e0
[ 6594.088026][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6594.088026][   T73] 
[ 6594.089753][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6594.089753][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6594.089753][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6594.089753][   T73]      ipv6_find_idev+0x102/0x170
[ 6594.089753][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6594.089753][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6594.089753][   T73]      netlink_rcv_skb+0x130/0x360
[ 6594.089753][   T73]      netlink_unicast+0x449/0x710
[ 6594.089753][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6594.089753][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6594.089753][   T73]      ___sys_sendmsg+0xee/0x170
[ 6594.089753][   T73]      __sys_sendmsg+0xcd/0x170
[ 6594.089753][   T73]      do_syscall_64+0xc6/0x1e0
[ 6594.089753][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6594.089753][   T73] 
[ 6604.327754][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6604.328135][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6604.328135][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6604.328135][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6604.328135][   T73]      fib6_nh_init+0xa22/0x1580
[ 6604.328135][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6604.328135][   T73]      ip6_route_add+0x1c/0x140
[ 6604.328135][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6604.328135][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6604.328135][   T73]      netlink_rcv_skb+0x130/0x360
[ 6604.328135][   T73]      netlink_unicast+0x449/0x710
[ 6604.328135][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6604.328135][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6604.328135][   T73]      ___sys_sendmsg+0xee/0x170
[ 6604.328135][   T73]      __sys_sendmsg+0xcd/0x170
[ 6604.328135][   T73]      do_syscall_64+0xc6/0x1e0
[ 6604.328135][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6604.328135][   T73] 
[ 6604.330051][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6604.330051][   T73]      dst_init+0x84/0x4a0
[ 6604.330051][   T73]      dst_alloc+0x97/0x150
[ 6604.330051][   T73]      ip6_dst_alloc+0x23/0x90
[ 6604.330051][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6604.330051][   T73]      ip6_pol_route+0x56f/0x840
[ 6604.330051][   T73]      fib6_rule_lookup+0x456/0x630
[ 6604.330051][   T73]      ip6_route_input+0x59c/0xa50
[ 6604.330051][   T73]      ipv6_rcv+0x397/0x810
[ 6604.330051][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6604.330051][   T73]      process_backlog+0x101/0x620
[ 6604.330051][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6604.330051][   T73]      net_rx_action+0x495/0xbe0
[ 6604.330051][   T73]      __do_softirq+0x1b5/0x7f6
[ 6604.330051][   T73] 
[ 6604.331709][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6604.331709][   T73]      netdev_get_by_index+0x5e/0x80
[ 6604.331709][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6604.331709][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6604.331709][   T73]      ip6_route_add+0x1c/0x140
[ 6604.331709][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6604.331709][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6604.331709][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6604.331709][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6604.331709][   T73]      netlink_rcv_skb+0x130/0x360
[ 6604.331709][   T73]      netlink_unicast+0x449/0x710
[ 6604.331709][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6604.331709][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6604.331709][   T73]      ___sys_sendmsg+0xee/0x170
[ 6604.331709][   T73]      __sys_sendmsg+0xcd/0x170
[ 6604.331709][   T73]      do_syscall_64+0xc6/0x1e0
[ 6604.331709][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6604.331709][   T73] 
[ 6604.333713][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6604.333713][   T73]      netdev_get_by_index+0x5e/0x80
[ 6604.333713][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6604.333713][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6604.333713][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6604.333713][   T73]      ipv6_add_addr+0x411/0x2000
[ 6604.333713][   T73]      inet6_addr_add+0x30e/0xa40
[ 6604.333713][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6604.333713][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6604.333713][   T73]      netlink_rcv_skb+0x130/0x360
[ 6604.333713][   T73]      netlink_unicast+0x449/0x710
[ 6604.333713][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6604.333713][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6604.333713][   T73]      ___sys_sendmsg+0xee/0x170
[ 6604.333713][   T73]      __sys_sendmsg+0xcd/0x170
[ 6604.333713][   T73]      do_syscall_64+0xc6/0x1e0
[ 6604.333713][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6604.333713][   T73] 
[ 6604.335732][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6604.335732][   T73]      netdev_get_by_index+0x5e/0x80
[ 6604.335732][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6604.335732][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6604.335732][   T73]      ip6_route_add+0x1c/0x140
[ 6604.335732][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6604.335732][   T73]      addrconf_add_dev+0xe2/0x170
[ 6604.335732][   T73]      inet6_addr_add+0x12f/0xa40
[ 6604.335732][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6604.335732][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6604.335732][   T73]      netlink_rcv_skb+0x130/0x360
[ 6604.335732][   T73]      netlink_unicast+0x449/0x710
[ 6604.335732][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6604.335732][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6604.335732][   T73]      ___sys_sendmsg+0xee/0x170
[ 6604.335732][   T73]      __sys_sendmsg+0xcd/0x170
[ 6604.335732][   T73]      do_syscall_64+0xc6/0x1e0
[ 6604.335732][   T73] 
[ 6604.337700][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6604.337700][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6604.337700][   T73]      ipv6_find_idev+0x102/0x170
[ 6604.337700][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6604.337700][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6604.337700][   T73]      netlink_rcv_skb+0x130/0x360
[ 6604.337700][   T73]      netlink_unicast+0x449/0x710
[ 6604.337700][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6604.337700][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6604.337700][   T73]      ___sys_sendmsg+0xee/0x170
[ 6604.337700][   T73]      __sys_sendmsg+0xcd/0x170
[ 6604.337700][   T73]      do_syscall_64+0xc6/0x1e0
[ 6604.337700][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6604.337700][   T73] 
[ 6604.339244][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6604.339244][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6604.339244][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6604.339244][   T73]      ipv6_find_idev+0x102/0x170
[ 6604.339244][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6604.339244][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6604.339244][   T73]      netlink_rcv_skb+0x130/0x360
[ 6604.339244][   T73]      netlink_unicast+0x449/0x710
[ 6604.339244][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6604.339244][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6604.339244][   T73]      ___sys_sendmsg+0xee/0x170
[ 6604.339244][   T73]      __sys_sendmsg+0xcd/0x170
[ 6604.339244][   T73]      do_syscall_64+0xc6/0x1e0
[ 6604.339244][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6604.339244][   T73] 
[ 6604.340934][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6604.341219][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6604.341219][   T73]      netdev_get_by_index+0x5e/0x80
[ 6604.341219][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6604.341219][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6604.341219][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6604.341219][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6604.341219][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6604.341219][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6604.341219][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6604.341219][   T73]      addrconf_dad_begin+0x310/0x670
[ 6604.341219][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6604.341219][   T73]      process_one_work+0x84d/0x18a0
[ 6604.341219][   T73]      worker_thread+0x587/0xd30
[ 6604.341219][   T73]      kthread+0x28a/0x350
[ 6604.341219][   T73]      ret_from_fork+0x31/0x70
[ 6604.341219][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6604.341219][   T73] 
[ 6604.343129][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6604.343129][   T73]      netdev_get_by_index+0x5e/0x80
[ 6604.343129][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6604.343129][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6604.343129][   T73]      ip6_route_add+0x1c/0x140
[ 6604.343129][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6604.343129][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6604.343129][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6604.343129][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6604.343129][   T73]      netlink_rcv_skb+0x130/0x360
[ 6604.343129][   T73]      netlink_unicast+0x449/0x710
[ 6604.343129][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6604.343129][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6604.343129][   T73]      ___sys_sendmsg+0xee/0x170
[ 6604.343129][   T73]      __sys_sendmsg+0xcd/0x170
[ 6604.343129][   T73]      do_syscall_64+0xc6/0x1e0
[ 6604.343129][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6604.343129][   T73] 
[ 6604.345145][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6604.345145][   T73]      netdev_get_by_index+0x5e/0x80
[ 6604.345145][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6604.345145][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6604.345145][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6604.345145][   T73]      ipv6_add_addr+0x411/0x2000
[ 6604.345145][   T73]      inet6_addr_add+0x30e/0xa40
[ 6604.345145][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6604.345145][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6604.345145][   T73]      netlink_rcv_skb+0x130/0x360
[ 6604.345145][   T73]      netlink_unicast+0x449/0x710
[ 6604.345145][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6604.345145][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6604.345145][   T73]      ___sys_sendmsg+0xee/0x170
[ 6604.345145][   T73]      __sys_sendmsg+0xcd/0x170
[ 6604.345145][   T73]      do_syscall_64+0xc6/0x1e0
[ 6604.345145][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6604.345145][   T73] 
[ 6604.347162][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6604.347162][   T73]      netdev_get_by_index+0x5e/0x80
[ 6604.347162][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6604.347162][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6604.347162][   T73]      ip6_route_add+0x1c/0x140
[ 6604.347162][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6604.347162][   T73]      addrconf_add_dev+0xe2/0x170
[ 6604.347162][   T73]      inet6_addr_add+0x12f/0xa40
[ 6604.347162][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6604.347162][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6604.347162][   T73]      netlink_rcv_skb+0x130/0x360
[ 6604.347162][   T73]      netlink_unicast+0x449/0x710
[ 6604.347162][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6604.347162][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6604.347162][   T73]      ___sys_sendmsg+0xee/0x170
[ 6604.347162][   T73]      __sys_sendmsg+0xcd/0x170
[ 6604.347162][   T73]      do_syscall_64+0xc6/0x1e0
[ 6604.347162][   T73] 
[ 6604.349132][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6604.349132][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6604.349132][   T73]      ipv6_find_idev+0x102/0x170
[ 6604.349132][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6604.349132][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6604.349132][   T73]      netlink_rcv_skb+0x130/0x360
[ 6604.349132][   T73]      netlink_unicast+0x449/0x710
[ 6604.349132][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6604.349132][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6604.349132][   T73]      ___sys_sendmsg+0xee/0x170
[ 6604.349132][   T73]      __sys_sendmsg+0xcd/0x170
[ 6604.349132][   T73]      do_syscall_64+0xc6/0x1e0
[ 6604.349132][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6604.349132][   T73] 
[ 6604.350659][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6604.350659][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6604.350659][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6604.350659][   T73]      ipv6_find_idev+0x102/0x170
[ 6604.350659][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6604.350659][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6604.350659][   T73]      netlink_rcv_skb+0x130/0x360
[ 6604.350659][   T73]      netlink_unicast+0x449/0x710
[ 6604.350659][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6604.350659][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6604.350659][   T73]      ___sys_sendmsg+0xee/0x170
[ 6604.350659][   T73]      __sys_sendmsg+0xcd/0x170
[ 6604.350659][   T73]      do_syscall_64+0xc6/0x1e0
[ 6604.350659][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6604.350659][   T73] 
[ 6604.352343][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6604.352612][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6604.352612][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6604.352612][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6604.352612][   T73]      fib6_nh_init+0xa22/0x1580
[ 6604.352612][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6604.352612][   T73]      ip6_route_add+0x1c/0x140
[ 6604.352612][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6604.352612][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6604.352612][   T73]      netlink_rcv_skb+0x130/0x360
[ 6604.352612][   T73]      netlink_unicast+0x449/0x710
[ 6604.352612][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6604.352612][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6604.352612][   T73]      ___sys_sendmsg+0xee/0x170
[ 6604.352612][   T73]      __sys_sendmsg+0xcd/0x170
[ 6604.352612][   T73]      do_syscall_64+0xc6/0x1e0
[ 6604.352612][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6604.352612][   T73] 
[ 6604.354671][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6604.354671][   T73]      dst_init+0x84/0x4a0
[ 6604.354671][   T73]      dst_alloc+0x97/0x150
[ 6604.354671][   T73]      ip6_dst_alloc+0x23/0x90
[ 6604.354671][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6604.354671][   T73]      ip6_pol_route+0x56f/0x840
[ 6604.354671][   T73]      fib6_rule_lookup+0x456/0x630
[ 6604.354671][   T73]      ip6_route_input+0x59c/0xa50
[ 6604.354671][   T73]      ipv6_rcv+0x397/0x810
[ 6604.354671][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6604.354671][   T73]      process_backlog+0x101/0x620
[ 6604.354671][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6604.354671][   T73]      net_rx_action+0x495/0xbe0
[ 6604.354671][   T73]      __do_softirq+0x1b5/0x7f6
[ 6604.354671][   T73] 
[ 6604.357057][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6604.357057][   T73]      netdev_get_by_index+0x5e/0x80
[ 6604.357057][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6604.357057][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6604.357057][   T73]      ip6_route_add+0x1c/0x140
[ 6604.357057][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6604.357057][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6604.357057][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6604.357057][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6604.357057][   T73]      netlink_rcv_skb+0x130/0x360
[ 6604.357057][   T73]      netlink_unicast+0x449/0x710
[ 6604.357057][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6604.357057][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6604.357057][   T73]      ___sys_sendmsg+0xee/0x170
[ 6604.357057][   T73]      __sys_sendmsg+0xcd/0x170
[ 6604.357057][   T73]      do_syscall_64+0xc6/0x1e0
[ 6604.357057][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6604.357057][   T73] 
[ 6604.359283][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6604.359283][   T73]      netdev_get_by_index+0x5e/0x80
[ 6604.359283][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6604.359283][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6604.359283][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6604.359283][   T73]      ipv6_add_addr+0x411/0x2000
[ 6604.359283][   T73]      inet6_addr_add+0x30e/0xa40
[ 6604.359283][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6604.359283][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6604.359283][   T73]      netlink_rcv_skb+0x130/0x360
[ 6604.359283][   T73]      netlink_unicast+0x449/0x710
[ 6604.359283][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6604.359283][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6604.359283][   T73]      ___sys_sendmsg+0xee/0x170
[ 6604.359283][   T73]      __sys_sendmsg+0xcd/0x170
[ 6604.359283][   T73]      do_syscall_64+0xc6/0x1e0
[ 6604.359283][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6604.359283][   T73] 
[ 6604.361449][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6604.361449][   T73]      netdev_get_by_index+0x5e/0x80
[ 6604.361449][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6604.361449][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6604.361449][   T73]      ip6_route_add+0x1c/0x140
[ 6604.361449][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6604.361449][   T73]      addrconf_add_dev+0xe2/0x170
[ 6604.361449][   T73]      inet6_addr_add+0x12f/0xa40
[ 6604.361449][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6604.361449][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6604.361449][   T73]      netlink_rcv_skb+0x130/0x360
[ 6604.361449][   T73]      netlink_unicast+0x449/0x710
[ 6604.361449][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6604.361449][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6604.361449][   T73]      ___sys_sendmsg+0xee/0x170
[ 6604.361449][   T73]      __sys_sendmsg+0xcd/0x170
[ 6604.361449][   T73]      do_syscall_64+0xc6/0x1e0
[ 6604.361449][   T73] 
[ 6604.363594][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6604.363594][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6604.363594][   T73]      ipv6_find_idev+0x102/0x170
[ 6604.363594][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6604.363594][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6604.363594][   T73]      netlink_rcv_skb+0x130/0x360
[ 6604.363594][   T73]      netlink_unicast+0x449/0x710
[ 6604.363594][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6604.363594][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6604.363594][   T73]      ___sys_sendmsg+0xee/0x170
[ 6604.363594][   T73]      __sys_sendmsg+0xcd/0x170
[ 6604.363594][   T73]      do_syscall_64+0xc6/0x1e0
[ 6604.363594][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6604.363594][   T73] 
[ 6604.365379][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6604.365379][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6604.365379][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6604.365379][   T73]      ipv6_find_idev+0x102/0x170
[ 6604.365379][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6604.365379][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6604.365379][   T73]      netlink_rcv_skb+0x130/0x360
[ 6604.365379][   T73]      netlink_unicast+0x449/0x710
[ 6604.365379][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6604.365379][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6604.365379][   T73]      ___sys_sendmsg+0xee/0x170
[ 6604.365379][   T73]      __sys_sendmsg+0xcd/0x170
[ 6604.365379][   T73]      do_syscall_64+0xc6/0x1e0
[ 6604.365379][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6604.365379][   T73] 
[ 6604.367314][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6604.367579][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6604.367579][   T73]      netdev_get_by_index+0x5e/0x80
[ 6604.367579][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6604.367579][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6604.367579][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6604.367579][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6604.367579][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6604.367579][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6604.367579][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6604.367579][   T73]      addrconf_dad_begin+0x310/0x670
[ 6604.367579][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6604.367579][   T73]      process_one_work+0x84d/0x18a0
[ 6604.367579][   T73]      worker_thread+0x587/0xd30
[ 6604.367579][   T73]      kthread+0x28a/0x350
[ 6604.367579][   T73]      ret_from_fork+0x31/0x70
[ 6604.367579][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6604.367579][   T73] 
[ 6604.369749][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6604.369749][   T73]      netdev_get_by_index+0x5e/0x80
[ 6604.369749][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6604.369749][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6604.369749][   T73]      ip6_route_add+0x1c/0x140
[ 6604.369749][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6604.369749][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6604.369749][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6604.369749][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6604.369749][   T73]      netlink_rcv_skb+0x130/0x360
[ 6604.369749][   T73]      netlink_unicast+0x449/0x710
[ 6604.369749][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6604.369749][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6604.369749][   T73]      ___sys_sendmsg+0xee/0x170
[ 6604.369749][   T73]      __sys_sendmsg+0xcd/0x170
[ 6604.369749][   T73]      do_syscall_64+0xc6/0x1e0
[ 6604.369749][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6604.369749][   T73] 
[ 6604.371924][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6604.371924][   T73]      netdev_get_by_index+0x5e/0x80
[ 6604.371924][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6604.371924][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6604.371924][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6604.371924][   T73]      ipv6_add_addr+0x411/0x2000
[ 6604.371924][   T73]      inet6_addr_add+0x30e/0xa40
[ 6604.371924][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6604.371924][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6604.371924][   T73]      netlink_rcv_skb+0x130/0x360
[ 6604.371924][   T73]      netlink_unicast+0x449/0x710
[ 6604.371924][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6604.371924][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6604.371924][   T73]      ___sys_sendmsg+0xee/0x170
[ 6604.371924][   T73]      __sys_sendmsg+0xcd/0x170
[ 6604.371924][   T73]      do_syscall_64+0xc6/0x1e0
[ 6604.371924][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6604.371924][   T73] 
[ 6604.374160][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6604.374160][   T73]      netdev_get_by_index+0x5e/0x80
[ 6604.374160][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6604.374160][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6604.374160][   T73]      ip6_route_add+0x1c/0x140
[ 6604.374160][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6604.374160][   T73]      addrconf_add_dev+0xe2/0x170
[ 6604.374160][   T73]      inet6_addr_add+0x12f/0xa40
[ 6604.374160][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6604.374160][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6604.374160][   T73]      netlink_rcv_skb+0x130/0x360
[ 6604.374160][   T73]      netlink_unicast+0x449/0x710
[ 6604.374160][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6604.374160][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6604.374160][   T73]      ___sys_sendmsg+0xee/0x170
[ 6604.374160][   T73]      __sys_sendmsg+0xcd/0x170
[ 6604.374160][   T73]      do_syscall_64+0xc6/0x1e0
[ 6604.374160][   T73] 
[ 6604.377123][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6604.377123][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6604.377123][   T73]      ipv6_find_idev+0x102/0x170
[ 6604.377123][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6604.377123][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6604.377123][   T73]      netlink_rcv_skb+0x130/0x360
[ 6604.377123][   T73]      netlink_unicast+0x449/0x710
[ 6604.377123][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6604.377123][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6604.377123][   T73]      ___sys_sendmsg+0xee/0x170
[ 6604.377123][   T73]      __sys_sendmsg+0xcd/0x170
[ 6604.377123][   T73]      do_syscall_64+0xc6/0x1e0
[ 6604.377123][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6604.377123][   T73] 
[ 6604.378840][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6604.378840][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6604.378840][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6604.378840][   T73]      ipv6_find_idev+0x102/0x170
[ 6604.378840][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6604.378840][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6604.378840][   T73]      netlink_rcv_skb+0x130/0x360
[ 6604.378840][   T73]      netlink_unicast+0x449/0x710
[ 6604.378840][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6604.378840][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6604.378840][   T73]      ___sys_sendmsg+0xee/0x170
[ 6604.378840][   T73]      __sys_sendmsg+0xcd/0x170
[ 6604.378840][   T73]      do_syscall_64+0xc6/0x1e0
[ 6604.378840][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6604.378840][   T73] 
[ 6614.623762][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6614.624231][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6614.624231][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6614.624231][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6614.624231][   T73]      fib6_nh_init+0xa22/0x1580
[ 6614.624231][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6614.624231][   T73]      ip6_route_add+0x1c/0x140
[ 6614.624231][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6614.624231][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6614.624231][   T73]      netlink_rcv_skb+0x130/0x360
[ 6614.624231][   T73]      netlink_unicast+0x449/0x710
[ 6614.624231][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6614.624231][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6614.624231][   T73]      ___sys_sendmsg+0xee/0x170
[ 6614.624231][   T73]      __sys_sendmsg+0xcd/0x170
[ 6614.624231][   T73]      do_syscall_64+0xc6/0x1e0
[ 6614.624231][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6614.624231][   T73] 
[ 6614.626154][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6614.626154][   T73]      dst_init+0x84/0x4a0
[ 6614.626154][   T73]      dst_alloc+0x97/0x150
[ 6614.626154][   T73]      ip6_dst_alloc+0x23/0x90
[ 6614.626154][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6614.626154][   T73]      ip6_pol_route+0x56f/0x840
[ 6614.626154][   T73]      fib6_rule_lookup+0x456/0x630
[ 6614.626154][   T73]      ip6_route_input+0x59c/0xa50
[ 6614.626154][   T73]      ipv6_rcv+0x397/0x810
[ 6614.626154][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6614.626154][   T73]      process_backlog+0x101/0x620
[ 6614.626154][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6614.626154][   T73]      net_rx_action+0x495/0xbe0
[ 6614.626154][   T73]      __do_softirq+0x1b5/0x7f6
[ 6614.626154][   T73] 
[ 6614.627797][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6614.627797][   T73]      netdev_get_by_index+0x5e/0x80
[ 6614.627797][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6614.627797][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6614.627797][   T73]      ip6_route_add+0x1c/0x140
[ 6614.627797][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6614.627797][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6614.627797][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6614.627797][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6614.627797][   T73]      netlink_rcv_skb+0x130/0x360
[ 6614.627797][   T73]      netlink_unicast+0x449/0x710
[ 6614.627797][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6614.627797][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6614.627797][   T73]      ___sys_sendmsg+0xee/0x170
[ 6614.627797][   T73]      __sys_sendmsg+0xcd/0x170
[ 6614.627797][   T73]      do_syscall_64+0xc6/0x1e0
[ 6614.627797][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6614.627797][   T73] 
[ 6614.629792][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6614.629792][   T73]      netdev_get_by_index+0x5e/0x80
[ 6614.629792][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6614.629792][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6614.629792][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6614.629792][   T73]      ipv6_add_addr+0x411/0x2000
[ 6614.629792][   T73]      inet6_addr_add+0x30e/0xa40
[ 6614.629792][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6614.629792][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6614.629792][   T73]      netlink_rcv_skb+0x130/0x360
[ 6614.629792][   T73]      netlink_unicast+0x449/0x710
[ 6614.629792][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6614.629792][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6614.629792][   T73]      ___sys_sendmsg+0xee/0x170
[ 6614.629792][   T73]      __sys_sendmsg+0xcd/0x170
[ 6614.629792][   T73]      do_syscall_64+0xc6/0x1e0
[ 6614.629792][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6614.629792][   T73] 
[ 6614.631786][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6614.631786][   T73]      netdev_get_by_index+0x5e/0x80
[ 6614.631786][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6614.631786][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6614.631786][   T73]      ip6_route_add+0x1c/0x140
[ 6614.631786][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6614.631786][   T73]      addrconf_add_dev+0xe2/0x170
[ 6614.631786][   T73]      inet6_addr_add+0x12f/0xa40
[ 6614.631786][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6614.631786][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6614.631786][   T73]      netlink_rcv_skb+0x130/0x360
[ 6614.631786][   T73]      netlink_unicast+0x449/0x710
[ 6614.631786][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6614.631786][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6614.631786][   T73]      ___sys_sendmsg+0xee/0x170
[ 6614.631786][   T73]      __sys_sendmsg+0xcd/0x170
[ 6614.631786][   T73]      do_syscall_64+0xc6/0x1e0
[ 6614.631786][   T73] 
[ 6614.633764][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6614.633764][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6614.633764][   T73]      ipv6_find_idev+0x102/0x170
[ 6614.633764][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6614.633764][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6614.633764][   T73]      netlink_rcv_skb+0x130/0x360
[ 6614.633764][   T73]      netlink_unicast+0x449/0x710
[ 6614.633764][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6614.633764][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6614.633764][   T73]      ___sys_sendmsg+0xee/0x170
[ 6614.633764][   T73]      __sys_sendmsg+0xcd/0x170
[ 6614.633764][   T73]      do_syscall_64+0xc6/0x1e0
[ 6614.633764][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6614.633764][   T73] 
[ 6614.635306][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6614.635306][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6614.635306][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6614.635306][   T73]      ipv6_find_idev+0x102/0x170
[ 6614.635306][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6614.635306][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6614.635306][   T73]      netlink_rcv_skb+0x130/0x360
[ 6614.635306][   T73]      netlink_unicast+0x449/0x710
[ 6614.635306][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6614.635306][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6614.635306][   T73]      ___sys_sendmsg+0xee/0x170
[ 6614.635306][   T73]      __sys_sendmsg+0xcd/0x170
[ 6614.635306][   T73]      do_syscall_64+0xc6/0x1e0
[ 6614.635306][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6614.635306][   T73] 
[ 6614.636995][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6614.637274][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6614.637274][   T73]      netdev_get_by_index+0x5e/0x80
[ 6614.637274][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6614.637274][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6614.637274][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6614.637274][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6614.637274][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6614.637274][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6614.637274][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6614.637274][   T73]      addrconf_dad_begin+0x310/0x670
[ 6614.637274][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6614.637274][   T73]      process_one_work+0x84d/0x18a0
[ 6614.637274][   T73]      worker_thread+0x587/0xd30
[ 6614.637274][   T73]      kthread+0x28a/0x350
[ 6614.637274][   T73]      ret_from_fork+0x31/0x70
[ 6614.637274][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6614.637274][   T73] 
[ 6614.639194][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6614.639194][   T73]      netdev_get_by_index+0x5e/0x80
[ 6614.639194][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6614.639194][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6614.639194][   T73]      ip6_route_add+0x1c/0x140
[ 6614.639194][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6614.639194][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6614.639194][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6614.639194][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6614.639194][   T73]      netlink_rcv_skb+0x130/0x360
[ 6614.639194][   T73]      netlink_unicast+0x449/0x710
[ 6614.639194][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6614.639194][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6614.639194][   T73]      ___sys_sendmsg+0xee/0x170
[ 6614.639194][   T73]      __sys_sendmsg+0xcd/0x170
[ 6614.639194][   T73]      do_syscall_64+0xc6/0x1e0
[ 6614.639194][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6614.639194][   T73] 
[ 6614.641862][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6614.641862][   T73]      netdev_get_by_index+0x5e/0x80
[ 6614.641862][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6614.641862][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6614.641862][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6614.641862][   T73]      ipv6_add_addr+0x411/0x2000
[ 6614.641862][   T73]      inet6_addr_add+0x30e/0xa40
[ 6614.641862][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6614.641862][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6614.641862][   T73]      netlink_rcv_skb+0x130/0x360
[ 6614.641862][   T73]      netlink_unicast+0x449/0x710
[ 6614.641862][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6614.641862][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6614.641862][   T73]      ___sys_sendmsg+0xee/0x170
[ 6614.641862][   T73]      __sys_sendmsg+0xcd/0x170
[ 6614.641862][   T73]      do_syscall_64+0xc6/0x1e0
[ 6614.641862][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6614.641862][   T73] 
[ 6614.643858][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6614.643858][   T73]      netdev_get_by_index+0x5e/0x80
[ 6614.643858][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6614.643858][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6614.643858][   T73]      ip6_route_add+0x1c/0x140
[ 6614.643858][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6614.643858][   T73]      addrconf_add_dev+0xe2/0x170
[ 6614.643858][   T73]      inet6_addr_add+0x12f/0xa40
[ 6614.643858][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6614.643858][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6614.643858][   T73]      netlink_rcv_skb+0x130/0x360
[ 6614.643858][   T73]      netlink_unicast+0x449/0x710
[ 6614.643858][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6614.643858][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6614.643858][   T73]      ___sys_sendmsg+0xee/0x170
[ 6614.643858][   T73]      __sys_sendmsg+0xcd/0x170
[ 6614.643858][   T73]      do_syscall_64+0xc6/0x1e0
[ 6614.643858][   T73] 
[ 6614.645853][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6614.645853][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6614.645853][   T73]      ipv6_find_idev+0x102/0x170
[ 6614.645853][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6614.645853][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6614.645853][   T73]      netlink_rcv_skb+0x130/0x360
[ 6614.645853][   T73]      netlink_unicast+0x449/0x710
[ 6614.645853][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6614.645853][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6614.645853][   T73]      ___sys_sendmsg+0xee/0x170
[ 6614.645853][   T73]      __sys_sendmsg+0xcd/0x170
[ 6614.645853][   T73]      do_syscall_64+0xc6/0x1e0
[ 6614.645853][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6614.645853][   T73] 
[ 6614.647394][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6614.647394][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6614.647394][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6614.647394][   T73]      ipv6_find_idev+0x102/0x170
[ 6614.647394][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6614.647394][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6614.647394][   T73]      netlink_rcv_skb+0x130/0x360
[ 6614.647394][   T73]      netlink_unicast+0x449/0x710
[ 6614.647394][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6614.647394][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6614.647394][   T73]      ___sys_sendmsg+0xee/0x170
[ 6614.647394][   T73]      __sys_sendmsg+0xcd/0x170
[ 6614.647394][   T73]      do_syscall_64+0xc6/0x1e0
[ 6614.647394][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6614.647394][   T73] 
[ 6614.649095][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6614.649367][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6614.649367][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6614.649367][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6614.649367][   T73]      fib6_nh_init+0xa22/0x1580
[ 6614.649367][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6614.649367][   T73]      ip6_route_add+0x1c/0x140
[ 6614.649367][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6614.649367][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6614.649367][   T73]      netlink_rcv_skb+0x130/0x360
[ 6614.649367][   T73]      netlink_unicast+0x449/0x710
[ 6614.649367][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6614.649367][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6614.649367][   T73]      ___sys_sendmsg+0xee/0x170
[ 6614.649367][   T73]      __sys_sendmsg+0xcd/0x170
[ 6614.649367][   T73]      do_syscall_64+0xc6/0x1e0
[ 6614.649367][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6614.649367][   T73] 
[ 6614.651447][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6614.651447][   T73]      dst_init+0x84/0x4a0
[ 6614.651447][   T73]      dst_alloc+0x97/0x150
[ 6614.651447][   T73]      ip6_dst_alloc+0x23/0x90
[ 6614.651447][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6614.651447][   T73]      ip6_pol_route+0x56f/0x840
[ 6614.651447][   T73]      fib6_rule_lookup+0x456/0x630
[ 6614.651447][   T73]      ip6_route_input+0x59c/0xa50
[ 6614.651447][   T73]      ipv6_rcv+0x397/0x810
[ 6614.651447][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6614.651447][   T73]      process_backlog+0x101/0x620
[ 6614.651447][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6614.651447][   T73]      net_rx_action+0x495/0xbe0
[ 6614.651447][   T73]      __do_softirq+0x1b5/0x7f6
[ 6614.651447][   T73] 
[ 6614.653260][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6614.653260][   T73]      netdev_get_by_index+0x5e/0x80
[ 6614.653260][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6614.653260][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6614.653260][   T73]      ip6_route_add+0x1c/0x140
[ 6614.653260][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6614.653260][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6614.653260][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6614.653260][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6614.653260][   T73]      netlink_rcv_skb+0x130/0x360
[ 6614.653260][   T73]      netlink_unicast+0x449/0x710
[ 6614.653260][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6614.653260][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6614.653260][   T73]      ___sys_sendmsg+0xee/0x170
[ 6614.653260][   T73]      __sys_sendmsg+0xcd/0x170
[ 6614.653260][   T73]      do_syscall_64+0xc6/0x1e0
[ 6614.653260][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6614.653260][   T73] 
[ 6614.655520][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6614.655520][   T73]      netdev_get_by_index+0x5e/0x80
[ 6614.655520][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6614.655520][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6614.655520][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6614.655520][   T73]      ipv6_add_addr+0x411/0x2000
[ 6614.655520][   T73]      inet6_addr_add+0x30e/0xa40
[ 6614.655520][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6614.655520][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6614.655520][   T73]      netlink_rcv_skb+0x130/0x360
[ 6614.655520][   T73]      netlink_unicast+0x449/0x710
[ 6614.655520][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6614.655520][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6614.655520][   T73]      ___sys_sendmsg+0xee/0x170
[ 6614.655520][   T73]      __sys_sendmsg+0xcd/0x170
[ 6614.655520][   T73]      do_syscall_64+0xc6/0x1e0
[ 6614.655520][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6614.655520][   T73] 
[ 6614.657636][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6614.657636][   T73]      netdev_get_by_index+0x5e/0x80
[ 6614.657636][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6614.657636][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6614.657636][   T73]      ip6_route_add+0x1c/0x140
[ 6614.657636][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6614.657636][   T73]      addrconf_add_dev+0xe2/0x170
[ 6614.657636][   T73]      inet6_addr_add+0x12f/0xa40
[ 6614.657636][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6614.657636][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6614.657636][   T73]      netlink_rcv_skb+0x130/0x360
[ 6614.657636][   T73]      netlink_unicast+0x449/0x710
[ 6614.657636][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6614.657636][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6614.657636][   T73]      ___sys_sendmsg+0xee/0x170
[ 6614.657636][   T73]      __sys_sendmsg+0xcd/0x170
[ 6614.657636][   T73]      do_syscall_64+0xc6/0x1e0
[ 6614.657636][   T73] 
[ 6614.659720][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6614.659720][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6614.659720][   T73]      ipv6_find_idev+0x102/0x170
[ 6614.659720][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6614.659720][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6614.659720][   T73]      netlink_rcv_skb+0x130/0x360
[ 6614.659720][   T73]      netlink_unicast+0x449/0x710
[ 6614.659720][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6614.659720][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6614.659720][   T73]      ___sys_sendmsg+0xee/0x170
[ 6614.659720][   T73]      __sys_sendmsg+0xcd/0x170
[ 6614.659720][   T73]      do_syscall_64+0xc6/0x1e0
[ 6614.659720][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6614.659720][   T73] 
[ 6614.661387][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6614.661387][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6614.661387][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6614.661387][   T73]      ipv6_find_idev+0x102/0x170
[ 6614.661387][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6614.661387][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6614.661387][   T73]      netlink_rcv_skb+0x130/0x360
[ 6614.661387][   T73]      netlink_unicast+0x449/0x710
[ 6614.661387][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6614.661387][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6614.661387][   T73]      ___sys_sendmsg+0xee/0x170
[ 6614.661387][   T73]      __sys_sendmsg+0xcd/0x170
[ 6614.661387][   T73]      do_syscall_64+0xc6/0x1e0
[ 6614.661387][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6614.661387][   T73] 
[ 6614.663222][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6614.663504][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6614.663504][   T73]      netdev_get_by_index+0x5e/0x80
[ 6614.663504][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6614.663504][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6614.663504][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6614.663504][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6614.663504][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6614.663504][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6614.663504][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6614.663504][   T73]      addrconf_dad_begin+0x310/0x670
[ 6614.663504][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6614.663504][   T73]      process_one_work+0x84d/0x18a0
[ 6614.663504][   T73]      worker_thread+0x587/0xd30
[ 6614.663504][   T73]      kthread+0x28a/0x350
[ 6614.663504][   T73]      ret_from_fork+0x31/0x70
[ 6614.663504][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6614.663504][   T73] 
[ 6614.665565][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6614.665565][   T73]      netdev_get_by_index+0x5e/0x80
[ 6614.665565][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6614.665565][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6614.665565][   T73]      ip6_route_add+0x1c/0x140
[ 6614.665565][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6614.665565][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6614.665565][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6614.665565][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6614.665565][   T73]      netlink_rcv_skb+0x130/0x360
[ 6614.665565][   T73]      netlink_unicast+0x449/0x710
[ 6614.665565][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6614.665565][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6614.665565][   T73]      ___sys_sendmsg+0xee/0x170
[ 6614.665565][   T73]      __sys_sendmsg+0xcd/0x170
[ 6614.665565][   T73]      do_syscall_64+0xc6/0x1e0
[ 6614.665565][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6614.665565][   T73] 
[ 6614.667708][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6614.667708][   T73]      netdev_get_by_index+0x5e/0x80
[ 6614.667708][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6614.667708][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6614.667708][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6614.667708][   T73]      ipv6_add_addr+0x411/0x2000
[ 6614.667708][   T73]      inet6_addr_add+0x30e/0xa40
[ 6614.667708][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6614.667708][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6614.667708][   T73]      netlink_rcv_skb+0x130/0x360
[ 6614.667708][   T73]      netlink_unicast+0x449/0x710
[ 6614.667708][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6614.667708][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6614.667708][   T73]      ___sys_sendmsg+0xee/0x170
[ 6614.667708][   T73]      __sys_sendmsg+0xcd/0x170
[ 6614.667708][   T73]      do_syscall_64+0xc6/0x1e0
[ 6614.667708][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6614.667708][   T73] 
[ 6614.669840][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6614.669840][   T73]      netdev_get_by_index+0x5e/0x80
[ 6614.669840][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6614.669840][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6614.669840][   T73]      ip6_route_add+0x1c/0x140
[ 6614.669840][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6614.669840][   T73]      addrconf_add_dev+0xe2/0x170
[ 6614.669840][   T73]      inet6_addr_add+0x12f/0xa40
[ 6614.669840][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6614.669840][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6614.669840][   T73]      netlink_rcv_skb+0x130/0x360
[ 6614.669840][   T73]      netlink_unicast+0x449/0x710
[ 6614.669840][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6614.669840][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6614.669840][   T73]      ___sys_sendmsg+0xee/0x170
[ 6614.669840][   T73]      __sys_sendmsg+0xcd/0x170
[ 6614.669840][   T73]      do_syscall_64+0xc6/0x1e0
[ 6614.669840][   T73] 
[ 6614.671958][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6614.671958][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6614.671958][   T73]      ipv6_find_idev+0x102/0x170
[ 6614.671958][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6614.671958][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6614.671958][   T73]      netlink_rcv_skb+0x130/0x360
[ 6614.671958][   T73]      netlink_unicast+0x449/0x710
[ 6614.671958][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6614.671958][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6614.671958][   T73]      ___sys_sendmsg+0xee/0x170
[ 6614.671958][   T73]      __sys_sendmsg+0xcd/0x170
[ 6614.671958][   T73]      do_syscall_64+0xc6/0x1e0
[ 6614.671958][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6614.671958][   T73] 
[ 6614.673566][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6614.673566][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6614.673566][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6614.673566][   T73]      ipv6_find_idev+0x102/0x170
[ 6614.673566][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6614.673566][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6614.673566][   T73]      netlink_rcv_skb+0x130/0x360
[ 6614.673566][   T73]      netlink_unicast+0x449/0x710
[ 6614.673566][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6614.673566][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6614.673566][   T73]      ___sys_sendmsg+0xee/0x170
[ 6614.673566][   T73]      __sys_sendmsg+0xcd/0x170
[ 6614.673566][   T73]      do_syscall_64+0xc6/0x1e0
[ 6614.673566][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6614.673566][   T73] 
[ 6624.911750][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6624.912223][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6624.912223][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6624.912223][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6624.912223][   T73]      fib6_nh_init+0xa22/0x1580
[ 6624.912223][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6624.912223][   T73]      ip6_route_add+0x1c/0x140
[ 6624.912223][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6624.912223][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6624.912223][   T73]      netlink_rcv_skb+0x130/0x360
[ 6624.912223][   T73]      netlink_unicast+0x449/0x710
[ 6624.912223][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6624.912223][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6624.912223][   T73]      ___sys_sendmsg+0xee/0x170
[ 6624.912223][   T73]      __sys_sendmsg+0xcd/0x170
[ 6624.912223][   T73]      do_syscall_64+0xc6/0x1e0
[ 6624.912223][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6624.912223][   T73] 
[ 6624.914156][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6624.914156][   T73]      dst_init+0x84/0x4a0
[ 6624.914156][   T73]      dst_alloc+0x97/0x150
[ 6624.914156][   T73]      ip6_dst_alloc+0x23/0x90
[ 6624.914156][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6624.914156][   T73]      ip6_pol_route+0x56f/0x840
[ 6624.914156][   T73]      fib6_rule_lookup+0x456/0x630
[ 6624.914156][   T73]      ip6_route_input+0x59c/0xa50
[ 6624.914156][   T73]      ipv6_rcv+0x397/0x810
[ 6624.914156][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6624.914156][   T73]      process_backlog+0x101/0x620
[ 6624.914156][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6624.914156][   T73]      net_rx_action+0x495/0xbe0
[ 6624.914156][   T73]      __do_softirq+0x1b5/0x7f6
[ 6624.914156][   T73] 
[ 6624.915818][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6624.915818][   T73]      netdev_get_by_index+0x5e/0x80
[ 6624.915818][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6624.915818][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6624.915818][   T73]      ip6_route_add+0x1c/0x140
[ 6624.915818][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6624.915818][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6624.915818][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6624.915818][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6624.915818][   T73]      netlink_rcv_skb+0x130/0x360
[ 6624.915818][   T73]      netlink_unicast+0x449/0x710
[ 6624.915818][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6624.915818][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6624.915818][   T73]      ___sys_sendmsg+0xee/0x170
[ 6624.915818][   T73]      __sys_sendmsg+0xcd/0x170
[ 6624.915818][   T73]      do_syscall_64+0xc6/0x1e0
[ 6624.915818][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6624.915818][   T73] 
[ 6624.917845][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6624.917845][   T73]      netdev_get_by_index+0x5e/0x80
[ 6624.917845][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6624.917845][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6624.917845][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6624.917845][   T73]      ipv6_add_addr+0x411/0x2000
[ 6624.917845][   T73]      inet6_addr_add+0x30e/0xa40
[ 6624.917845][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6624.917845][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6624.917845][   T73]      netlink_rcv_skb+0x130/0x360
[ 6624.917845][   T73]      netlink_unicast+0x449/0x710
[ 6624.917845][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6624.917845][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6624.917845][   T73]      ___sys_sendmsg+0xee/0x170
[ 6624.917845][   T73]      __sys_sendmsg+0xcd/0x170
[ 6624.917845][   T73]      do_syscall_64+0xc6/0x1e0
[ 6624.917845][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6624.917845][   T73] 
[ 6624.919856][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6624.919856][   T73]      netdev_get_by_index+0x5e/0x80
[ 6624.919856][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6624.919856][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6624.919856][   T73]      ip6_route_add+0x1c/0x140
[ 6624.919856][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6624.919856][   T73]      addrconf_add_dev+0xe2/0x170
[ 6624.919856][   T73]      inet6_addr_add+0x12f/0xa40
[ 6624.919856][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6624.919856][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6624.919856][   T73]      netlink_rcv_skb+0x130/0x360
[ 6624.919856][   T73]      netlink_unicast+0x449/0x710
[ 6624.919856][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6624.919856][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6624.919856][   T73]      ___sys_sendmsg+0xee/0x170
[ 6624.919856][   T73]      __sys_sendmsg+0xcd/0x170
[ 6624.919856][   T73]      do_syscall_64+0xc6/0x1e0
[ 6624.919856][   T73] 
[ 6624.921881][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6624.921881][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6624.921881][   T73]      ipv6_find_idev+0x102/0x170
[ 6624.921881][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6624.921881][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6624.921881][   T73]      netlink_rcv_skb+0x130/0x360
[ 6624.921881][   T73]      netlink_unicast+0x449/0x710
[ 6624.921881][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6624.921881][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6624.921881][   T73]      ___sys_sendmsg+0xee/0x170
[ 6624.921881][   T73]      __sys_sendmsg+0xcd/0x170
[ 6624.921881][   T73]      do_syscall_64+0xc6/0x1e0
[ 6624.921881][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6624.921881][   T73] 
[ 6624.923472][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6624.923472][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6624.923472][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6624.923472][   T73]      ipv6_find_idev+0x102/0x170
[ 6624.923472][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6624.923472][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6624.923472][   T73]      netlink_rcv_skb+0x130/0x360
[ 6624.923472][   T73]      netlink_unicast+0x449/0x710
[ 6624.923472][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6624.923472][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6624.923472][   T73]      ___sys_sendmsg+0xee/0x170
[ 6624.923472][   T73]      __sys_sendmsg+0xcd/0x170
[ 6624.923472][   T73]      do_syscall_64+0xc6/0x1e0
[ 6624.923472][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6624.923472][   T73] 
[ 6624.925214][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6624.925495][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6624.925495][   T73]      netdev_get_by_index+0x5e/0x80
[ 6624.925495][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6624.925495][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6624.925495][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6624.925495][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6624.925495][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6624.925495][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6624.925495][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6624.925495][   T73]      addrconf_dad_begin+0x310/0x670
[ 6624.925495][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6624.925495][   T73]      process_one_work+0x84d/0x18a0
[ 6624.925495][   T73]      worker_thread+0x587/0xd30
[ 6624.925495][   T73]      kthread+0x28a/0x350
[ 6624.925495][   T73]      ret_from_fork+0x31/0x70
[ 6624.925495][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6624.925495][   T73] 
[ 6624.927439][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6624.927439][   T73]      netdev_get_by_index+0x5e/0x80
[ 6624.927439][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6624.927439][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6624.927439][   T73]      ip6_route_add+0x1c/0x140
[ 6624.927439][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6624.927439][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6624.927439][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6624.927439][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6624.927439][   T73]      netlink_rcv_skb+0x130/0x360
[ 6624.927439][   T73]      netlink_unicast+0x449/0x710
[ 6624.927439][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6624.927439][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6624.927439][   T73]      ___sys_sendmsg+0xee/0x170
[ 6624.927439][   T73]      __sys_sendmsg+0xcd/0x170
[ 6624.927439][   T73]      do_syscall_64+0xc6/0x1e0
[ 6624.927439][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6624.927439][   T73] 
[ 6624.929464][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6624.929464][   T73]      netdev_get_by_index+0x5e/0x80
[ 6624.929464][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6624.929464][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6624.929464][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6624.929464][   T73]      ipv6_add_addr+0x411/0x2000
[ 6624.929464][   T73]      inet6_addr_add+0x30e/0xa40
[ 6624.929464][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6624.929464][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6624.929464][   T73]      netlink_rcv_skb+0x130/0x360
[ 6624.929464][   T73]      netlink_unicast+0x449/0x710
[ 6624.929464][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6624.929464][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6624.929464][   T73]      ___sys_sendmsg+0xee/0x170
[ 6624.929464][   T73]      __sys_sendmsg+0xcd/0x170
[ 6624.929464][   T73]      do_syscall_64+0xc6/0x1e0
[ 6624.929464][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6624.929464][   T73] 
[ 6624.931506][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6624.931506][   T73]      netdev_get_by_index+0x5e/0x80
[ 6624.931506][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6624.931506][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6624.931506][   T73]      ip6_route_add+0x1c/0x140
[ 6624.931506][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6624.931506][   T73]      addrconf_add_dev+0xe2/0x170
[ 6624.931506][   T73]      inet6_addr_add+0x12f/0xa40
[ 6624.931506][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6624.931506][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6624.931506][   T73]      netlink_rcv_skb+0x130/0x360
[ 6624.931506][   T73]      netlink_unicast+0x449/0x710
[ 6624.931506][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6624.931506][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6624.931506][   T73]      ___sys_sendmsg+0xee/0x170
[ 6624.931506][   T73]      __sys_sendmsg+0xcd/0x170
[ 6624.931506][   T73]      do_syscall_64+0xc6/0x1e0
[ 6624.931506][   T73] 
[ 6624.933517][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6624.933517][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6624.933517][   T73]      ipv6_find_idev+0x102/0x170
[ 6624.933517][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6624.933517][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6624.933517][   T73]      netlink_rcv_skb+0x130/0x360
[ 6624.933517][   T73]      netlink_unicast+0x449/0x710
[ 6624.933517][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6624.933517][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6624.933517][   T73]      ___sys_sendmsg+0xee/0x170
[ 6624.933517][   T73]      __sys_sendmsg+0xcd/0x170
[ 6624.933517][   T73]      do_syscall_64+0xc6/0x1e0
[ 6624.933517][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6624.933517][   T73] 
[ 6624.935094][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6624.935094][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6624.935094][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6624.935094][   T73]      ipv6_find_idev+0x102/0x170
[ 6624.935094][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6624.935094][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6624.935094][   T73]      netlink_rcv_skb+0x130/0x360
[ 6624.935094][   T73]      netlink_unicast+0x449/0x710
[ 6624.935094][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6624.935094][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6624.935094][   T73]      ___sys_sendmsg+0xee/0x170
[ 6624.935094][   T73]      __sys_sendmsg+0xcd/0x170
[ 6624.935094][   T73]      do_syscall_64+0xc6/0x1e0
[ 6624.935094][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6624.935094][   T73] 
[ 6624.936825][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6624.937101][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6624.937101][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6624.937101][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6624.937101][   T73]      fib6_nh_init+0xa22/0x1580
[ 6624.937101][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6624.937101][   T73]      ip6_route_add+0x1c/0x140
[ 6624.937101][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6624.937101][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6624.937101][   T73]      netlink_rcv_skb+0x130/0x360
[ 6624.937101][   T73]      netlink_unicast+0x449/0x710
[ 6624.937101][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6624.937101][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6624.937101][   T73]      ___sys_sendmsg+0xee/0x170
[ 6624.937101][   T73]      __sys_sendmsg+0xcd/0x170
[ 6624.937101][   T73]      do_syscall_64+0xc6/0x1e0
[ 6624.937101][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6624.937101][   T73] 
[ 6624.939191][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6624.939191][   T73]      dst_init+0x84/0x4a0
[ 6624.939191][   T73]      dst_alloc+0x97/0x150
[ 6624.939191][   T73]      ip6_dst_alloc+0x23/0x90
[ 6624.939191][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6624.939191][   T73]      ip6_pol_route+0x56f/0x840
[ 6624.939191][   T73]      fib6_rule_lookup+0x456/0x630
[ 6624.939191][   T73]      ip6_route_input+0x59c/0xa50
[ 6624.939191][   T73]      ipv6_rcv+0x397/0x810
[ 6624.939191][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6624.939191][   T73]      process_backlog+0x101/0x620
[ 6624.939191][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6624.939191][   T73]      net_rx_action+0x495/0xbe0
[ 6624.939191][   T73]      __do_softirq+0x1b5/0x7f6
[ 6624.939191][   T73] 
[ 6624.941115][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6624.941115][   T73]      netdev_get_by_index+0x5e/0x80
[ 6624.941115][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6624.941115][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6624.941115][   T73]      ip6_route_add+0x1c/0x140
[ 6624.941115][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6624.941115][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6624.941115][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6624.941115][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6624.941115][   T73]      netlink_rcv_skb+0x130/0x360
[ 6624.941115][   T73]      netlink_unicast+0x449/0x710
[ 6624.941115][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6624.941115][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6624.941115][   T73]      ___sys_sendmsg+0xee/0x170
[ 6624.941115][   T73]      __sys_sendmsg+0xcd/0x170
[ 6624.941115][   T73]      do_syscall_64+0xc6/0x1e0
[ 6624.941115][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6624.941115][   T73] 
[ 6624.943389][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6624.943389][   T73]      netdev_get_by_index+0x5e/0x80
[ 6624.943389][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6624.943389][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6624.943389][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6624.943389][   T73]      ipv6_add_addr+0x411/0x2000
[ 6624.943389][   T73]      inet6_addr_add+0x30e/0xa40
[ 6624.943389][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6624.943389][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6624.943389][   T73]      netlink_rcv_skb+0x130/0x360
[ 6624.943389][   T73]      netlink_unicast+0x449/0x710
[ 6624.943389][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6624.943389][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6624.943389][   T73]      ___sys_sendmsg+0xee/0x170
[ 6624.943389][   T73]      __sys_sendmsg+0xcd/0x170
[ 6624.943389][   T73]      do_syscall_64+0xc6/0x1e0
[ 6624.943389][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6624.943389][   T73] 
[ 6624.945678][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6624.945678][   T73]      netdev_get_by_index+0x5e/0x80
[ 6624.945678][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6624.945678][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6624.945678][   T73]      ip6_route_add+0x1c/0x140
[ 6624.945678][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6624.945678][   T73]      addrconf_add_dev+0xe2/0x170
[ 6624.945678][   T73]      inet6_addr_add+0x12f/0xa40
[ 6624.945678][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6624.945678][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6624.945678][   T73]      netlink_rcv_skb+0x130/0x360
[ 6624.945678][   T73]      netlink_unicast+0x449/0x710
[ 6624.945678][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6624.945678][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6624.945678][   T73]      ___sys_sendmsg+0xee/0x170
[ 6624.945678][   T73]      __sys_sendmsg+0xcd/0x170
[ 6624.945678][   T73]      do_syscall_64+0xc6/0x1e0
[ 6624.945678][   T73] 
[ 6624.947922][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6624.947922][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6624.947922][   T73]      ipv6_find_idev+0x102/0x170
[ 6624.947922][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6624.947922][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6624.947922][   T73]      netlink_rcv_skb+0x130/0x360
[ 6624.947922][   T73]      netlink_unicast+0x449/0x710
[ 6624.947922][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6624.947922][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6624.947922][   T73]      ___sys_sendmsg+0xee/0x170
[ 6624.947922][   T73]      __sys_sendmsg+0xcd/0x170
[ 6624.947922][   T73]      do_syscall_64+0xc6/0x1e0
[ 6624.947922][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6624.947922][   T73] 
[ 6624.949728][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6624.949728][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6624.949728][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6624.949728][   T73]      ipv6_find_idev+0x102/0x170
[ 6624.949728][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6624.949728][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6624.949728][   T73]      netlink_rcv_skb+0x130/0x360
[ 6624.949728][   T73]      netlink_unicast+0x449/0x710
[ 6624.949728][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6624.949728][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6624.949728][   T73]      ___sys_sendmsg+0xee/0x170
[ 6624.949728][   T73]      __sys_sendmsg+0xcd/0x170
[ 6624.949728][   T73]      do_syscall_64+0xc6/0x1e0
[ 6624.949728][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6624.949728][   T73] 
[ 6624.951623][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6624.952328][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6624.952328][   T73]      netdev_get_by_index+0x5e/0x80
[ 6624.952328][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6624.952328][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6624.952328][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6624.952328][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6624.952328][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6624.952328][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6624.952328][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6624.952328][   T73]      addrconf_dad_begin+0x310/0x670
[ 6624.952328][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6624.952328][   T73]      process_one_work+0x84d/0x18a0
[ 6624.952328][   T73]      worker_thread+0x587/0xd30
[ 6624.952328][   T73]      kthread+0x28a/0x350
[ 6624.952328][   T73]      ret_from_fork+0x31/0x70
[ 6624.952328][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6624.952328][   T73] 
[ 6624.954264][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6624.954264][   T73]      netdev_get_by_index+0x5e/0x80
[ 6624.954264][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6624.954264][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6624.954264][   T73]      ip6_route_add+0x1c/0x140
[ 6624.954264][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6624.954264][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6624.954264][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6624.954264][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6624.954264][   T73]      netlink_rcv_skb+0x130/0x360
[ 6624.954264][   T73]      netlink_unicast+0x449/0x710
[ 6624.954264][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6624.954264][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6624.954264][   T73]      ___sys_sendmsg+0xee/0x170
[ 6624.954264][   T73]      __sys_sendmsg+0xcd/0x170
[ 6624.954264][   T73]      do_syscall_64+0xc6/0x1e0
[ 6624.954264][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6624.954264][   T73] 
[ 6624.956416][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6624.956416][   T73]      netdev_get_by_index+0x5e/0x80
[ 6624.956416][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6624.956416][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6624.956416][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6624.956416][   T73]      ipv6_add_addr+0x411/0x2000
[ 6624.956416][   T73]      inet6_addr_add+0x30e/0xa40
[ 6624.956416][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6624.956416][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6624.956416][   T73]      netlink_rcv_skb+0x130/0x360
[ 6624.956416][   T73]      netlink_unicast+0x449/0x710
[ 6624.956416][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6624.956416][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6624.956416][   T73]      ___sys_sendmsg+0xee/0x170
[ 6624.956416][   T73]      __sys_sendmsg+0xcd/0x170
[ 6624.956416][   T73]      do_syscall_64+0xc6/0x1e0
[ 6624.956416][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6624.956416][   T73] 
[ 6624.958693][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6624.958693][   T73]      netdev_get_by_index+0x5e/0x80
[ 6624.958693][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6624.958693][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6624.958693][   T73]      ip6_route_add+0x1c/0x140
[ 6624.958693][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6624.958693][   T73]      addrconf_add_dev+0xe2/0x170
[ 6624.958693][   T73]      inet6_addr_add+0x12f/0xa40
[ 6624.958693][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6624.958693][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6624.958693][   T73]      netlink_rcv_skb+0x130/0x360
[ 6624.958693][   T73]      netlink_unicast+0x449/0x710
[ 6624.958693][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6624.958693][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6624.958693][   T73]      ___sys_sendmsg+0xee/0x170
[ 6624.958693][   T73]      __sys_sendmsg+0xcd/0x170
[ 6624.958693][   T73]      do_syscall_64+0xc6/0x1e0
[ 6624.958693][   T73] 
[ 6624.960865][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6624.960865][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6624.960865][   T73]      ipv6_find_idev+0x102/0x170
[ 6624.960865][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6624.960865][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6624.960865][   T73]      netlink_rcv_skb+0x130/0x360
[ 6624.960865][   T73]      netlink_unicast+0x449/0x710
[ 6624.960865][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6624.960865][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6624.960865][   T73]      ___sys_sendmsg+0xee/0x170
[ 6624.960865][   T73]      __sys_sendmsg+0xcd/0x170
[ 6624.960865][   T73]      do_syscall_64+0xc6/0x1e0
[ 6624.960865][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6624.960865][   T73] 
[ 6624.962617][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6624.962617][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6624.962617][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6624.962617][   T73]      ipv6_find_idev+0x102/0x170
[ 6624.962617][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6624.962617][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6624.962617][   T73]      netlink_rcv_skb+0x130/0x360
[ 6624.962617][   T73]      netlink_unicast+0x449/0x710
[ 6624.962617][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6624.962617][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6624.962617][   T73]      ___sys_sendmsg+0xee/0x170
[ 6624.962617][   T73]      __sys_sendmsg+0xcd/0x170
[ 6624.962617][   T73]      do_syscall_64+0xc6/0x1e0
[ 6624.962617][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6624.962617][   T73] 
[ 6635.207858][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6635.208341][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6635.208341][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6635.208341][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6635.208341][   T73]      fib6_nh_init+0xa22/0x1580
[ 6635.208341][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6635.208341][   T73]      ip6_route_add+0x1c/0x140
[ 6635.208341][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6635.208341][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6635.208341][   T73]      netlink_rcv_skb+0x130/0x360
[ 6635.208341][   T73]      netlink_unicast+0x449/0x710
[ 6635.208341][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6635.208341][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6635.208341][   T73]      ___sys_sendmsg+0xee/0x170
[ 6635.208341][   T73]      __sys_sendmsg+0xcd/0x170
[ 6635.208341][   T73]      do_syscall_64+0xc6/0x1e0
[ 6635.208341][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6635.208341][   T73] 
[ 6635.210276][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6635.210276][   T73]      dst_init+0x84/0x4a0
[ 6635.210276][   T73]      dst_alloc+0x97/0x150
[ 6635.210276][   T73]      ip6_dst_alloc+0x23/0x90
[ 6635.210276][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6635.210276][   T73]      ip6_pol_route+0x56f/0x840
[ 6635.210276][   T73]      fib6_rule_lookup+0x456/0x630
[ 6635.210276][   T73]      ip6_route_input+0x59c/0xa50
[ 6635.210276][   T73]      ipv6_rcv+0x397/0x810
[ 6635.210276][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6635.210276][   T73]      process_backlog+0x101/0x620
[ 6635.210276][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6635.210276][   T73]      net_rx_action+0x495/0xbe0
[ 6635.210276][   T73]      __do_softirq+0x1b5/0x7f6
[ 6635.210276][   T73] 
[ 6635.211936][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6635.211936][   T73]      netdev_get_by_index+0x5e/0x80
[ 6635.211936][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6635.211936][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6635.211936][   T73]      ip6_route_add+0x1c/0x140
[ 6635.211936][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6635.211936][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6635.211936][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6635.211936][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6635.211936][   T73]      netlink_rcv_skb+0x130/0x360
[ 6635.211936][   T73]      netlink_unicast+0x449/0x710
[ 6635.211936][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6635.211936][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6635.211936][   T73]      ___sys_sendmsg+0xee/0x170
[ 6635.211936][   T73]      __sys_sendmsg+0xcd/0x170
[ 6635.211936][   T73]      do_syscall_64+0xc6/0x1e0
[ 6635.211936][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6635.211936][   T73] 
[ 6635.213980][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6635.213980][   T73]      netdev_get_by_index+0x5e/0x80
[ 6635.213980][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6635.213980][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6635.213980][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6635.213980][   T73]      ipv6_add_addr+0x411/0x2000
[ 6635.213980][   T73]      inet6_addr_add+0x30e/0xa40
[ 6635.213980][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6635.213980][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6635.213980][   T73]      netlink_rcv_skb+0x130/0x360
[ 6635.213980][   T73]      netlink_unicast+0x449/0x710
[ 6635.213980][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6635.213980][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6635.213980][   T73]      ___sys_sendmsg+0xee/0x170
[ 6635.213980][   T73]      __sys_sendmsg+0xcd/0x170
[ 6635.213980][   T73]      do_syscall_64+0xc6/0x1e0
[ 6635.213980][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6635.213980][   T73] 
[ 6635.216000][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6635.216000][   T73]      netdev_get_by_index+0x5e/0x80
[ 6635.216000][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6635.216000][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6635.216000][   T73]      ip6_route_add+0x1c/0x140
[ 6635.216000][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6635.216000][   T73]      addrconf_add_dev+0xe2/0x170
[ 6635.216000][   T73]      inet6_addr_add+0x12f/0xa40
[ 6635.216000][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6635.216000][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6635.216000][   T73]      netlink_rcv_skb+0x130/0x360
[ 6635.216000][   T73]      netlink_unicast+0x449/0x710
[ 6635.216000][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6635.216000][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6635.216000][   T73]      ___sys_sendmsg+0xee/0x170
[ 6635.216000][   T73]      __sys_sendmsg+0xcd/0x170
[ 6635.216000][   T73]      do_syscall_64+0xc6/0x1e0
[ 6635.216000][   T73] 
[ 6635.217992][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6635.217992][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6635.217992][   T73]      ipv6_find_idev+0x102/0x170
[ 6635.217992][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6635.217992][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6635.217992][   T73]      netlink_rcv_skb+0x130/0x360
[ 6635.217992][   T73]      netlink_unicast+0x449/0x710
[ 6635.217992][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6635.217992][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6635.217992][   T73]      ___sys_sendmsg+0xee/0x170
[ 6635.217992][   T73]      __sys_sendmsg+0xcd/0x170
[ 6635.217992][   T73]      do_syscall_64+0xc6/0x1e0
[ 6635.217992][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6635.217992][   T73] 
[ 6635.219549][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6635.219549][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6635.219549][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6635.219549][   T73]      ipv6_find_idev+0x102/0x170
[ 6635.219549][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6635.219549][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6635.219549][   T73]      netlink_rcv_skb+0x130/0x360
[ 6635.219549][   T73]      netlink_unicast+0x449/0x710
[ 6635.219549][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6635.219549][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6635.219549][   T73]      ___sys_sendmsg+0xee/0x170
[ 6635.219549][   T73]      __sys_sendmsg+0xcd/0x170
[ 6635.219549][   T73]      do_syscall_64+0xc6/0x1e0
[ 6635.219549][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6635.219549][   T73] 
[ 6635.221304][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6635.221584][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6635.221584][   T73]      netdev_get_by_index+0x5e/0x80
[ 6635.221584][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6635.221584][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6635.221584][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6635.221584][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6635.221584][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6635.221584][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6635.221584][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6635.221584][   T73]      addrconf_dad_begin+0x310/0x670
[ 6635.221584][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6635.221584][   T73]      process_one_work+0x84d/0x18a0
[ 6635.221584][   T73]      worker_thread+0x587/0xd30
[ 6635.221584][   T73]      kthread+0x28a/0x350
[ 6635.221584][   T73]      ret_from_fork+0x31/0x70
[ 6635.221584][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6635.221584][   T73] 
[ 6635.223522][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6635.223522][   T73]      netdev_get_by_index+0x5e/0x80
[ 6635.223522][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6635.223522][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6635.223522][   T73]      ip6_route_add+0x1c/0x140
[ 6635.223522][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6635.223522][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6635.223522][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6635.223522][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6635.223522][   T73]      netlink_rcv_skb+0x130/0x360
[ 6635.223522][   T73]      netlink_unicast+0x449/0x710
[ 6635.223522][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6635.223522][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6635.223522][   T73]      ___sys_sendmsg+0xee/0x170
[ 6635.223522][   T73]      __sys_sendmsg+0xcd/0x170
[ 6635.223522][   T73]      do_syscall_64+0xc6/0x1e0
[ 6635.223522][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6635.223522][   T73] 
[ 6635.225549][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6635.225549][   T73]      netdev_get_by_index+0x5e/0x80
[ 6635.225549][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6635.225549][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6635.225549][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6635.225549][   T73]      ipv6_add_addr+0x411/0x2000
[ 6635.225549][   T73]      inet6_addr_add+0x30e/0xa40
[ 6635.225549][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6635.225549][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6635.225549][   T73]      netlink_rcv_skb+0x130/0x360
[ 6635.225549][   T73]      netlink_unicast+0x449/0x710
[ 6635.225549][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6635.225549][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6635.225549][   T73]      ___sys_sendmsg+0xee/0x170
[ 6635.225549][   T73]      __sys_sendmsg+0xcd/0x170
[ 6635.225549][   T73]      do_syscall_64+0xc6/0x1e0
[ 6635.225549][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6635.225549][   T73] 
[ 6635.227582][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6635.227582][   T73]      netdev_get_by_index+0x5e/0x80
[ 6635.227582][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6635.227582][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6635.227582][   T73]      ip6_route_add+0x1c/0x140
[ 6635.227582][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6635.227582][   T73]      addrconf_add_dev+0xe2/0x170
[ 6635.227582][   T73]      inet6_addr_add+0x12f/0xa40
[ 6635.227582][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6635.227582][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6635.227582][   T73]      netlink_rcv_skb+0x130/0x360
[ 6635.227582][   T73]      netlink_unicast+0x449/0x710
[ 6635.227582][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6635.227582][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6635.227582][   T73]      ___sys_sendmsg+0xee/0x170
[ 6635.227582][   T73]      __sys_sendmsg+0xcd/0x170
[ 6635.227582][   T73]      do_syscall_64+0xc6/0x1e0
[ 6635.227582][   T73] 
[ 6635.229583][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6635.229583][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6635.229583][   T73]      ipv6_find_idev+0x102/0x170
[ 6635.229583][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6635.229583][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6635.229583][   T73]      netlink_rcv_skb+0x130/0x360
[ 6635.229583][   T73]      netlink_unicast+0x449/0x710
[ 6635.229583][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6635.229583][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6635.229583][   T73]      ___sys_sendmsg+0xee/0x170
[ 6635.229583][   T73]      __sys_sendmsg+0xcd/0x170
[ 6635.229583][   T73]      do_syscall_64+0xc6/0x1e0
[ 6635.229583][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6635.229583][   T73] 
[ 6635.231146][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6635.231146][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6635.231146][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6635.231146][   T73]      ipv6_find_idev+0x102/0x170
[ 6635.231146][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6635.231146][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6635.231146][   T73]      netlink_rcv_skb+0x130/0x360
[ 6635.231146][   T73]      netlink_unicast+0x449/0x710
[ 6635.231146][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6635.231146][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6635.231146][   T73]      ___sys_sendmsg+0xee/0x170
[ 6635.231146][   T73]      __sys_sendmsg+0xcd/0x170
[ 6635.231146][   T73]      do_syscall_64+0xc6/0x1e0
[ 6635.231146][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6635.231146][   T73] 
[ 6635.232862][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6635.233132][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6635.233132][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6635.233132][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6635.233132][   T73]      fib6_nh_init+0xa22/0x1580
[ 6635.233132][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6635.233132][   T73]      ip6_route_add+0x1c/0x140
[ 6635.233132][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6635.233132][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6635.233132][   T73]      netlink_rcv_skb+0x130/0x360
[ 6635.233132][   T73]      netlink_unicast+0x449/0x710
[ 6635.233132][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6635.233132][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6635.233132][   T73]      ___sys_sendmsg+0xee/0x170
[ 6635.233132][   T73]      __sys_sendmsg+0xcd/0x170
[ 6635.233132][   T73]      do_syscall_64+0xc6/0x1e0
[ 6635.233132][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6635.233132][   T73] 
[ 6635.235249][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6635.235249][   T73]      dst_init+0x84/0x4a0
[ 6635.235249][   T73]      dst_alloc+0x97/0x150
[ 6635.235249][   T73]      ip6_dst_alloc+0x23/0x90
[ 6635.235249][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6635.235249][   T73]      ip6_pol_route+0x56f/0x840
[ 6635.235249][   T73]      fib6_rule_lookup+0x456/0x630
[ 6635.235249][   T73]      ip6_route_input+0x59c/0xa50
[ 6635.235249][   T73]      ipv6_rcv+0x397/0x810
[ 6635.235249][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6635.235249][   T73]      process_backlog+0x101/0x620
[ 6635.235249][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6635.235249][   T73]      net_rx_action+0x495/0xbe0
[ 6635.235249][   T73]      __do_softirq+0x1b5/0x7f6
[ 6635.235249][   T73] 
[ 6635.237166][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6635.237166][   T73]      netdev_get_by_index+0x5e/0x80
[ 6635.237166][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6635.237166][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6635.237166][   T73]      ip6_route_add+0x1c/0x140
[ 6635.237166][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6635.237166][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6635.237166][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6635.237166][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6635.237166][   T73]      netlink_rcv_skb+0x130/0x360
[ 6635.237166][   T73]      netlink_unicast+0x449/0x710
[ 6635.237166][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6635.237166][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6635.237166][   T73]      ___sys_sendmsg+0xee/0x170
[ 6635.237166][   T73]      __sys_sendmsg+0xcd/0x170
[ 6635.237166][   T73]      do_syscall_64+0xc6/0x1e0
[ 6635.237166][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6635.237166][   T73] 
[ 6635.239454][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6635.239454][   T73]      netdev_get_by_index+0x5e/0x80
[ 6635.239454][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6635.239454][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6635.239454][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6635.239454][   T73]      ipv6_add_addr+0x411/0x2000
[ 6635.239454][   T73]      inet6_addr_add+0x30e/0xa40
[ 6635.239454][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6635.239454][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6635.239454][   T73]      netlink_rcv_skb+0x130/0x360
[ 6635.239454][   T73]      netlink_unicast+0x449/0x710
[ 6635.239454][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6635.239454][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6635.239454][   T73]      ___sys_sendmsg+0xee/0x170
[ 6635.239454][   T73]      __sys_sendmsg+0xcd/0x170
[ 6635.239454][   T73]      do_syscall_64+0xc6/0x1e0
[ 6635.239454][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6635.239454][   T73] 
[ 6635.241745][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6635.241745][   T73]      netdev_get_by_index+0x5e/0x80
[ 6635.241745][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6635.241745][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6635.241745][   T73]      ip6_route_add+0x1c/0x140
[ 6635.241745][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6635.241745][   T73]      addrconf_add_dev+0xe2/0x170
[ 6635.241745][   T73]      inet6_addr_add+0x12f/0xa40
[ 6635.241745][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6635.241745][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6635.241745][   T73]      netlink_rcv_skb+0x130/0x360
[ 6635.241745][   T73]      netlink_unicast+0x449/0x710
[ 6635.241745][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6635.241745][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6635.241745][   T73]      ___sys_sendmsg+0xee/0x170
[ 6635.241745][   T73]      __sys_sendmsg+0xcd/0x170
[ 6635.241745][   T73]      do_syscall_64+0xc6/0x1e0
[ 6635.241745][   T73] 
[ 6635.244000][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6635.244000][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6635.244000][   T73]      ipv6_find_idev+0x102/0x170
[ 6635.244000][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6635.244000][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6635.244000][   T73]      netlink_rcv_skb+0x130/0x360
[ 6635.244000][   T73]      netlink_unicast+0x449/0x710
[ 6635.244000][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6635.244000][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6635.244000][   T73]      ___sys_sendmsg+0xee/0x170
[ 6635.244000][   T73]      __sys_sendmsg+0xcd/0x170
[ 6635.244000][   T73]      do_syscall_64+0xc6/0x1e0
[ 6635.244000][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6635.244000][   T73] 
[ 6635.245814][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6635.245814][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6635.245814][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6635.245814][   T73]      ipv6_find_idev+0x102/0x170
[ 6635.245814][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6635.245814][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6635.245814][   T73]      netlink_rcv_skb+0x130/0x360
[ 6635.245814][   T73]      netlink_unicast+0x449/0x710
[ 6635.245814][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6635.245814][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6635.245814][   T73]      ___sys_sendmsg+0xee/0x170
[ 6635.245814][   T73]      __sys_sendmsg+0xcd/0x170
[ 6635.245814][   T73]      do_syscall_64+0xc6/0x1e0
[ 6635.245814][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6635.245814][   T73] 
[ 6635.247722][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6635.248001][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6635.248001][   T73]      netdev_get_by_index+0x5e/0x80
[ 6635.248001][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6635.248001][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6635.248001][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6635.248001][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6635.248001][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6635.248001][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6635.248001][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6635.248001][   T73]      addrconf_dad_begin+0x310/0x670
[ 6635.248001][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6635.248001][   T73]      process_one_work+0x84d/0x18a0
[ 6635.248001][   T73]      worker_thread+0x587/0xd30
[ 6635.248001][   T73]      kthread+0x28a/0x350
[ 6635.248001][   T73]      ret_from_fork+0x31/0x70
[ 6635.248001][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6635.248001][   T73] 
[ 6635.250202][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6635.250202][   T73]      netdev_get_by_index+0x5e/0x80
[ 6635.250202][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6635.250202][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6635.250202][   T73]      ip6_route_add+0x1c/0x140
[ 6635.250202][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6635.250202][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6635.250202][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6635.250202][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6635.250202][   T73]      netlink_rcv_skb+0x130/0x360
[ 6635.250202][   T73]      netlink_unicast+0x449/0x710
[ 6635.250202][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6635.250202][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6635.250202][   T73]      ___sys_sendmsg+0xee/0x170
[ 6635.250202][   T73]      __sys_sendmsg+0xcd/0x170
[ 6635.250202][   T73]      do_syscall_64+0xc6/0x1e0
[ 6635.250202][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6635.250202][   T73] 
[ 6635.252474][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6635.252474][   T73]      netdev_get_by_index+0x5e/0x80
[ 6635.252474][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6635.252474][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6635.252474][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6635.252474][   T73]      ipv6_add_addr+0x411/0x2000
[ 6635.252474][   T73]      inet6_addr_add+0x30e/0xa40
[ 6635.252474][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6635.252474][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6635.252474][   T73]      netlink_rcv_skb+0x130/0x360
[ 6635.252474][   T73]      netlink_unicast+0x449/0x710
[ 6635.252474][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6635.252474][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6635.252474][   T73]      ___sys_sendmsg+0xee/0x170
[ 6635.252474][   T73]      __sys_sendmsg+0xcd/0x170
[ 6635.252474][   T73]      do_syscall_64+0xc6/0x1e0
[ 6635.252474][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6635.252474][   T73] 
[ 6635.254820][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6635.254820][   T73]      netdev_get_by_index+0x5e/0x80
[ 6635.254820][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6635.254820][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6635.254820][   T73]      ip6_route_add+0x1c/0x140
[ 6635.254820][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6635.254820][   T73]      addrconf_add_dev+0xe2/0x170
[ 6635.254820][   T73]      inet6_addr_add+0x12f/0xa40
[ 6635.254820][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6635.254820][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6635.254820][   T73]      netlink_rcv_skb+0x130/0x360
[ 6635.254820][   T73]      netlink_unicast+0x449/0x710
[ 6635.254820][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6635.254820][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6635.254820][   T73]      ___sys_sendmsg+0xee/0x170
[ 6635.254820][   T73]      __sys_sendmsg+0xcd/0x170
[ 6635.254820][   T73]      do_syscall_64+0xc6/0x1e0
[ 6635.254820][   T73] 
[ 6635.256996][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6635.256996][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6635.256996][   T73]      ipv6_find_idev+0x102/0x170
[ 6635.256996][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6635.256996][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6635.256996][   T73]      netlink_rcv_skb+0x130/0x360
[ 6635.256996][   T73]      netlink_unicast+0x449/0x710
[ 6635.256996][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6635.256996][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6635.256996][   T73]      ___sys_sendmsg+0xee/0x170
[ 6635.256996][   T73]      __sys_sendmsg+0xcd/0x170
[ 6635.256996][   T73]      do_syscall_64+0xc6/0x1e0
[ 6635.256996][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6635.256996][   T73] 
[ 6635.258741][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6635.258741][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6635.258741][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6635.258741][   T73]      ipv6_find_idev+0x102/0x170
[ 6635.258741][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6635.258741][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6635.258741][   T73]      netlink_rcv_skb+0x130/0x360
[ 6635.258741][   T73]      netlink_unicast+0x449/0x710
[ 6635.258741][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6635.258741][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6635.258741][   T73]      ___sys_sendmsg+0xee/0x170
[ 6635.258741][   T73]      __sys_sendmsg+0xcd/0x170
[ 6635.258741][   T73]      do_syscall_64+0xc6/0x1e0
[ 6635.258741][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6635.258741][   T73] 
[ 6645.503798][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6645.504313][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6645.504313][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6645.504313][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6645.504313][   T73]      fib6_nh_init+0xa22/0x1580
[ 6645.504313][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6645.504313][   T73]      ip6_route_add+0x1c/0x140
[ 6645.504313][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6645.504313][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6645.504313][   T73]      netlink_rcv_skb+0x130/0x360
[ 6645.504313][   T73]      netlink_unicast+0x449/0x710
[ 6645.504313][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6645.504313][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6645.504313][   T73]      ___sys_sendmsg+0xee/0x170
[ 6645.504313][   T73]      __sys_sendmsg+0xcd/0x170
[ 6645.504313][   T73]      do_syscall_64+0xc6/0x1e0
[ 6645.504313][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6645.504313][   T73] 
[ 6645.506245][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6645.506245][   T73]      dst_init+0x84/0x4a0
[ 6645.506245][   T73]      dst_alloc+0x97/0x150
[ 6645.506245][   T73]      ip6_dst_alloc+0x23/0x90
[ 6645.506245][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6645.506245][   T73]      ip6_pol_route+0x56f/0x840
[ 6645.506245][   T73]      fib6_rule_lookup+0x456/0x630
[ 6645.506245][   T73]      ip6_route_input+0x59c/0xa50
[ 6645.506245][   T73]      ipv6_rcv+0x397/0x810
[ 6645.506245][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6645.506245][   T73]      process_backlog+0x101/0x620
[ 6645.506245][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6645.506245][   T73]      net_rx_action+0x495/0xbe0
[ 6645.506245][   T73]      __do_softirq+0x1b5/0x7f6
[ 6645.506245][   T73] 
[ 6645.507918][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6645.507918][   T73]      netdev_get_by_index+0x5e/0x80
[ 6645.507918][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6645.507918][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6645.507918][   T73]      ip6_route_add+0x1c/0x140
[ 6645.507918][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6645.507918][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6645.507918][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6645.507918][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6645.507918][   T73]      netlink_rcv_skb+0x130/0x360
[ 6645.507918][   T73]      netlink_unicast+0x449/0x710
[ 6645.507918][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6645.507918][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6645.507918][   T73]      ___sys_sendmsg+0xee/0x170
[ 6645.507918][   T73]      __sys_sendmsg+0xcd/0x170
[ 6645.507918][   T73]      do_syscall_64+0xc6/0x1e0
[ 6645.507918][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6645.507918][   T73] 
[ 6645.509976][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6645.509976][   T73]      netdev_get_by_index+0x5e/0x80
[ 6645.509976][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6645.509976][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6645.509976][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6645.509976][   T73]      ipv6_add_addr+0x411/0x2000
[ 6645.509976][   T73]      inet6_addr_add+0x30e/0xa40
[ 6645.509976][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6645.509976][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6645.509976][   T73]      netlink_rcv_skb+0x130/0x360
[ 6645.509976][   T73]      netlink_unicast+0x449/0x710
[ 6645.509976][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6645.509976][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6645.509976][   T73]      ___sys_sendmsg+0xee/0x170
[ 6645.509976][   T73]      __sys_sendmsg+0xcd/0x170
[ 6645.509976][   T73]      do_syscall_64+0xc6/0x1e0
[ 6645.509976][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6645.509976][   T73] 
[ 6645.512023][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6645.512023][   T73]      netdev_get_by_index+0x5e/0x80
[ 6645.512023][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6645.512023][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6645.512023][   T73]      ip6_route_add+0x1c/0x140
[ 6645.512023][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6645.512023][   T73]      addrconf_add_dev+0xe2/0x170
[ 6645.512023][   T73]      inet6_addr_add+0x12f/0xa40
[ 6645.512023][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6645.512023][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6645.512023][   T73]      netlink_rcv_skb+0x130/0x360
[ 6645.512023][   T73]      netlink_unicast+0x449/0x710
[ 6645.512023][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6645.512023][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6645.512023][   T73]      ___sys_sendmsg+0xee/0x170
[ 6645.512023][   T73]      __sys_sendmsg+0xcd/0x170
[ 6645.512023][   T73]      do_syscall_64+0xc6/0x1e0
[ 6645.512023][   T73] 
[ 6645.514066][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6645.514066][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6645.514066][   T73]      ipv6_find_idev+0x102/0x170
[ 6645.514066][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6645.514066][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6645.514066][   T73]      netlink_rcv_skb+0x130/0x360
[ 6645.514066][   T73]      netlink_unicast+0x449/0x710
[ 6645.514066][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6645.514066][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6645.514066][   T73]      ___sys_sendmsg+0xee/0x170
[ 6645.514066][   T73]      __sys_sendmsg+0xcd/0x170
[ 6645.514066][   T73]      do_syscall_64+0xc6/0x1e0
[ 6645.514066][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6645.514066][   T73] 
[ 6645.515658][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6645.515658][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6645.515658][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6645.515658][   T73]      ipv6_find_idev+0x102/0x170
[ 6645.515658][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6645.515658][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6645.515658][   T73]      netlink_rcv_skb+0x130/0x360
[ 6645.515658][   T73]      netlink_unicast+0x449/0x710
[ 6645.515658][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6645.515658][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6645.515658][   T73]      ___sys_sendmsg+0xee/0x170
[ 6645.515658][   T73]      __sys_sendmsg+0xcd/0x170
[ 6645.515658][   T73]      do_syscall_64+0xc6/0x1e0
[ 6645.515658][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6645.515658][   T73] 
[ 6645.517385][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6645.517678][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6645.517678][   T73]      netdev_get_by_index+0x5e/0x80
[ 6645.517678][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6645.517678][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6645.517678][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6645.517678][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6645.517678][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6645.517678][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6645.517678][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6645.517678][   T73]      addrconf_dad_begin+0x310/0x670
[ 6645.517678][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6645.517678][   T73]      process_one_work+0x84d/0x18a0
[ 6645.517678][   T73]      worker_thread+0x587/0xd30
[ 6645.517678][   T73]      kthread+0x28a/0x350
[ 6645.517678][   T73]      ret_from_fork+0x31/0x70
[ 6645.517678][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6645.517678][   T73] 
[ 6645.519612][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6645.519612][   T73]      netdev_get_by_index+0x5e/0x80
[ 6645.519612][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6645.519612][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6645.519612][   T73]      ip6_route_add+0x1c/0x140
[ 6645.519612][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6645.519612][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6645.519612][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6645.519612][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6645.519612][   T73]      netlink_rcv_skb+0x130/0x360
[ 6645.519612][   T73]      netlink_unicast+0x449/0x710
[ 6645.519612][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6645.519612][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6645.519612][   T73]      ___sys_sendmsg+0xee/0x170
[ 6645.519612][   T73]      __sys_sendmsg+0xcd/0x170
[ 6645.519612][   T73]      do_syscall_64+0xc6/0x1e0
[ 6645.519612][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6645.519612][   T73] 
[ 6645.521645][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6645.521645][   T73]      netdev_get_by_index+0x5e/0x80
[ 6645.521645][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6645.521645][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6645.521645][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6645.521645][   T73]      ipv6_add_addr+0x411/0x2000
[ 6645.521645][   T73]      inet6_addr_add+0x30e/0xa40
[ 6645.521645][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6645.521645][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6645.521645][   T73]      netlink_rcv_skb+0x130/0x360
[ 6645.521645][   T73]      netlink_unicast+0x449/0x710
[ 6645.521645][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6645.521645][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6645.521645][   T73]      ___sys_sendmsg+0xee/0x170
[ 6645.521645][   T73]      __sys_sendmsg+0xcd/0x170
[ 6645.521645][   T73]      do_syscall_64+0xc6/0x1e0
[ 6645.521645][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6645.521645][   T73] 
[ 6645.523660][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6645.523660][   T73]      netdev_get_by_index+0x5e/0x80
[ 6645.523660][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6645.523660][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6645.523660][   T73]      ip6_route_add+0x1c/0x140
[ 6645.523660][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6645.523660][   T73]      addrconf_add_dev+0xe2/0x170
[ 6645.523660][   T73]      inet6_addr_add+0x12f/0xa40
[ 6645.523660][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6645.523660][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6645.523660][   T73]      netlink_rcv_skb+0x130/0x360
[ 6645.523660][   T73]      netlink_unicast+0x449/0x710
[ 6645.523660][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6645.523660][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6645.523660][   T73]      ___sys_sendmsg+0xee/0x170
[ 6645.523660][   T73]      __sys_sendmsg+0xcd/0x170
[ 6645.523660][   T73]      do_syscall_64+0xc6/0x1e0
[ 6645.523660][   T73] 
[ 6645.525647][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6645.525647][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6645.525647][   T73]      ipv6_find_idev+0x102/0x170
[ 6645.525647][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6645.525647][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6645.525647][   T73]      netlink_rcv_skb+0x130/0x360
[ 6645.525647][   T73]      netlink_unicast+0x449/0x710
[ 6645.525647][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6645.525647][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6645.525647][   T73]      ___sys_sendmsg+0xee/0x170
[ 6645.525647][   T73]      __sys_sendmsg+0xcd/0x170
[ 6645.525647][   T73]      do_syscall_64+0xc6/0x1e0
[ 6645.525647][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6645.525647][   T73] 
[ 6645.527193][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6645.527193][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6645.527193][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6645.527193][   T73]      ipv6_find_idev+0x102/0x170
[ 6645.527193][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6645.527193][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6645.527193][   T73]      netlink_rcv_skb+0x130/0x360
[ 6645.527193][   T73]      netlink_unicast+0x449/0x710
[ 6645.527193][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6645.527193][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6645.527193][   T73]      ___sys_sendmsg+0xee/0x170
[ 6645.527193][   T73]      __sys_sendmsg+0xcd/0x170
[ 6645.527193][   T73]      do_syscall_64+0xc6/0x1e0
[ 6645.527193][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6645.527193][   T73] 
[ 6645.528896][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6645.529174][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6645.529174][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6645.529174][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6645.529174][   T73]      fib6_nh_init+0xa22/0x1580
[ 6645.529174][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6645.529174][   T73]      ip6_route_add+0x1c/0x140
[ 6645.529174][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6645.529174][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6645.529174][   T73]      netlink_rcv_skb+0x130/0x360
[ 6645.529174][   T73]      netlink_unicast+0x449/0x710
[ 6645.529174][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6645.529174][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6645.529174][   T73]      ___sys_sendmsg+0xee/0x170
[ 6645.529174][   T73]      __sys_sendmsg+0xcd/0x170
[ 6645.529174][   T73]      do_syscall_64+0xc6/0x1e0
[ 6645.529174][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6645.529174][   T73] 
[ 6645.531250][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6645.531250][   T73]      dst_init+0x84/0x4a0
[ 6645.531250][   T73]      dst_alloc+0x97/0x150
[ 6645.531250][   T73]      ip6_dst_alloc+0x23/0x90
[ 6645.531250][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6645.531250][   T73]      ip6_pol_route+0x56f/0x840
[ 6645.531250][   T73]      fib6_rule_lookup+0x456/0x630
[ 6645.531250][   T73]      ip6_route_input+0x59c/0xa50
[ 6645.531250][   T73]      ipv6_rcv+0x397/0x810
[ 6645.531250][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6645.531250][   T73]      process_backlog+0x101/0x620
[ 6645.531250][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6645.531250][   T73]      net_rx_action+0x495/0xbe0
[ 6645.531250][   T73]      __do_softirq+0x1b5/0x7f6
[ 6645.531250][   T73] 
[ 6645.533137][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6645.533137][   T73]      netdev_get_by_index+0x5e/0x80
[ 6645.533137][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6645.533137][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6645.533137][   T73]      ip6_route_add+0x1c/0x140
[ 6645.533137][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6645.533137][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6645.533137][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6645.533137][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6645.533137][   T73]      netlink_rcv_skb+0x130/0x360
[ 6645.533137][   T73]      netlink_unicast+0x449/0x710
[ 6645.533137][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6645.533137][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6645.533137][   T73]      ___sys_sendmsg+0xee/0x170
[ 6645.533137][   T73]      __sys_sendmsg+0xcd/0x170
[ 6645.533137][   T73]      do_syscall_64+0xc6/0x1e0
[ 6645.533137][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6645.533137][   T73] 
[ 6645.535393][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6645.535393][   T73]      netdev_get_by_index+0x5e/0x80
[ 6645.535393][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6645.535393][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6645.535393][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6645.535393][   T73]      ipv6_add_addr+0x411/0x2000
[ 6645.535393][   T73]      inet6_addr_add+0x30e/0xa40
[ 6645.535393][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6645.535393][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6645.535393][   T73]      netlink_rcv_skb+0x130/0x360
[ 6645.535393][   T73]      netlink_unicast+0x449/0x710
[ 6645.535393][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6645.535393][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6645.535393][   T73]      ___sys_sendmsg+0xee/0x170
[ 6645.535393][   T73]      __sys_sendmsg+0xcd/0x170
[ 6645.535393][   T73]      do_syscall_64+0xc6/0x1e0
[ 6645.535393][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6645.535393][   T73] 
[ 6645.537660][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6645.537660][   T73]      netdev_get_by_index+0x5e/0x80
[ 6645.537660][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6645.537660][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6645.537660][   T73]      ip6_route_add+0x1c/0x140
[ 6645.537660][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6645.537660][   T73]      addrconf_add_dev+0xe2/0x170
[ 6645.537660][   T73]      inet6_addr_add+0x12f/0xa40
[ 6645.537660][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6645.537660][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6645.537660][   T73]      netlink_rcv_skb+0x130/0x360
[ 6645.537660][   T73]      netlink_unicast+0x449/0x710
[ 6645.537660][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6645.537660][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6645.537660][   T73]      ___sys_sendmsg+0xee/0x170
[ 6645.537660][   T73]      __sys_sendmsg+0xcd/0x170
[ 6645.537660][   T73]      do_syscall_64+0xc6/0x1e0
[ 6645.537660][   T73] 
[ 6645.539885][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6645.539885][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6645.539885][   T73]      ipv6_find_idev+0x102/0x170
[ 6645.539885][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6645.539885][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6645.539885][   T73]      netlink_rcv_skb+0x130/0x360
[ 6645.539885][   T73]      netlink_unicast+0x449/0x710
[ 6645.539885][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6645.539885][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6645.539885][   T73]      ___sys_sendmsg+0xee/0x170
[ 6645.539885][   T73]      __sys_sendmsg+0xcd/0x170
[ 6645.539885][   T73]      do_syscall_64+0xc6/0x1e0
[ 6645.539885][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6645.539885][   T73] 
[ 6645.541677][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6645.541677][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6645.541677][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6645.541677][   T73]      ipv6_find_idev+0x102/0x170
[ 6645.541677][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6645.541677][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6645.541677][   T73]      netlink_rcv_skb+0x130/0x360
[ 6645.541677][   T73]      netlink_unicast+0x449/0x710
[ 6645.541677][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6645.541677][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6645.541677][   T73]      ___sys_sendmsg+0xee/0x170
[ 6645.541677][   T73]      __sys_sendmsg+0xcd/0x170
[ 6645.541677][   T73]      do_syscall_64+0xc6/0x1e0
[ 6645.541677][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6645.541677][   T73] 
[ 6645.543562][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6645.544277][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6645.544277][   T73]      netdev_get_by_index+0x5e/0x80
[ 6645.544277][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6645.544277][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6645.544277][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6645.544277][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6645.544277][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6645.544277][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6645.544277][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6645.544277][   T73]      addrconf_dad_begin+0x310/0x670
[ 6645.544277][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6645.544277][   T73]      process_one_work+0x84d/0x18a0
[ 6645.544277][   T73]      worker_thread+0x587/0xd30
[ 6645.544277][   T73]      kthread+0x28a/0x350
[ 6645.544277][   T73]      ret_from_fork+0x31/0x70
[ 6645.544277][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6645.544277][   T73] 
[ 6645.546727][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6645.546727][   T73]      netdev_get_by_index+0x5e/0x80
[ 6645.546727][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6645.546727][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6645.546727][   T73]      ip6_route_add+0x1c/0x140
[ 6645.546727][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6645.546727][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6645.546727][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6645.546727][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6645.546727][   T73]      netlink_rcv_skb+0x130/0x360
[ 6645.546727][   T73]      netlink_unicast+0x449/0x710
[ 6645.546727][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6645.546727][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6645.546727][   T73]      ___sys_sendmsg+0xee/0x170
[ 6645.546727][   T73]      __sys_sendmsg+0xcd/0x170
[ 6645.546727][   T73]      do_syscall_64+0xc6/0x1e0
[ 6645.546727][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6645.546727][   T73] 
[ 6645.548852][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6645.548852][   T73]      netdev_get_by_index+0x5e/0x80
[ 6645.548852][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6645.548852][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6645.548852][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6645.548852][   T73]      ipv6_add_addr+0x411/0x2000
[ 6645.548852][   T73]      inet6_addr_add+0x30e/0xa40
[ 6645.548852][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6645.548852][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6645.548852][   T73]      netlink_rcv_skb+0x130/0x360
[ 6645.548852][   T73]      netlink_unicast+0x449/0x710
[ 6645.548852][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6645.548852][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6645.548852][   T73]      ___sys_sendmsg+0xee/0x170
[ 6645.548852][   T73]      __sys_sendmsg+0xcd/0x170
[ 6645.548852][   T73]      do_syscall_64+0xc6/0x1e0
[ 6645.548852][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6645.548852][   T73] 
[ 6645.551117][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6645.551117][   T73]      netdev_get_by_index+0x5e/0x80
[ 6645.551117][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6645.551117][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6645.551117][   T73]      ip6_route_add+0x1c/0x140
[ 6645.551117][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6645.551117][   T73]      addrconf_add_dev+0xe2/0x170
[ 6645.551117][   T73]      inet6_addr_add+0x12f/0xa40
[ 6645.551117][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6645.551117][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6645.551117][   T73]      netlink_rcv_skb+0x130/0x360
[ 6645.551117][   T73]      netlink_unicast+0x449/0x710
[ 6645.551117][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6645.551117][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6645.551117][   T73]      ___sys_sendmsg+0xee/0x170
[ 6645.551117][   T73]      __sys_sendmsg+0xcd/0x170
[ 6645.551117][   T73]      do_syscall_64+0xc6/0x1e0
[ 6645.551117][   T73] 
[ 6645.553285][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6645.553285][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6645.553285][   T73]      ipv6_find_idev+0x102/0x170
[ 6645.553285][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6645.553285][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6645.553285][   T73]      netlink_rcv_skb+0x130/0x360
[ 6645.553285][   T73]      netlink_unicast+0x449/0x710
[ 6645.553285][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6645.553285][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6645.553285][   T73]      ___sys_sendmsg+0xee/0x170
[ 6645.553285][   T73]      __sys_sendmsg+0xcd/0x170
[ 6645.553285][   T73]      do_syscall_64+0xc6/0x1e0
[ 6645.553285][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6645.553285][   T73] 
[ 6645.555089][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6645.555089][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6645.555089][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6645.555089][   T73]      ipv6_find_idev+0x102/0x170
[ 6645.555089][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6645.555089][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6645.555089][   T73]      netlink_rcv_skb+0x130/0x360
[ 6645.555089][   T73]      netlink_unicast+0x449/0x710
[ 6645.555089][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6645.555089][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6645.555089][   T73]      ___sys_sendmsg+0xee/0x170
[ 6645.555089][   T73]      __sys_sendmsg+0xcd/0x170
[ 6645.555089][   T73]      do_syscall_64+0xc6/0x1e0
[ 6645.555089][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6645.555089][   T73] 
[ 6655.799680][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6655.800069][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6655.800069][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6655.800069][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6655.800069][   T73]      fib6_nh_init+0xa22/0x1580
[ 6655.800069][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6655.800069][   T73]      ip6_route_add+0x1c/0x140
[ 6655.800069][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6655.800069][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6655.800069][   T73]      netlink_rcv_skb+0x130/0x360
[ 6655.800069][   T73]      netlink_unicast+0x449/0x710
[ 6655.800069][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6655.800069][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6655.800069][   T73]      ___sys_sendmsg+0xee/0x170
[ 6655.800069][   T73]      __sys_sendmsg+0xcd/0x170
[ 6655.800069][   T73]      do_syscall_64+0xc6/0x1e0
[ 6655.800069][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6655.800069][   T73] 
[ 6655.801959][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6655.801959][   T73]      dst_init+0x84/0x4a0
[ 6655.801959][   T73]      dst_alloc+0x97/0x150
[ 6655.801959][   T73]      ip6_dst_alloc+0x23/0x90
[ 6655.801959][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6655.801959][   T73]      ip6_pol_route+0x56f/0x840
[ 6655.801959][   T73]      fib6_rule_lookup+0x456/0x630
[ 6655.801959][   T73]      ip6_route_input+0x59c/0xa50
[ 6655.801959][   T73]      ipv6_rcv+0x397/0x810
[ 6655.801959][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6655.801959][   T73]      process_backlog+0x101/0x620
[ 6655.801959][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6655.801959][   T73]      net_rx_action+0x495/0xbe0
[ 6655.801959][   T73]      __do_softirq+0x1b5/0x7f6
[ 6655.801959][   T73] 
[ 6655.803590][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6655.803590][   T73]      netdev_get_by_index+0x5e/0x80
[ 6655.803590][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6655.803590][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6655.803590][   T73]      ip6_route_add+0x1c/0x140
[ 6655.803590][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6655.803590][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6655.803590][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6655.803590][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6655.803590][   T73]      netlink_rcv_skb+0x130/0x360
[ 6655.803590][   T73]      netlink_unicast+0x449/0x710
[ 6655.803590][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6655.803590][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6655.803590][   T73]      ___sys_sendmsg+0xee/0x170
[ 6655.803590][   T73]      __sys_sendmsg+0xcd/0x170
[ 6655.803590][   T73]      do_syscall_64+0xc6/0x1e0
[ 6655.803590][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6655.803590][   T73] 
[ 6655.805576][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6655.805576][   T73]      netdev_get_by_index+0x5e/0x80
[ 6655.805576][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6655.805576][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6655.805576][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6655.805576][   T73]      ipv6_add_addr+0x411/0x2000
[ 6655.805576][   T73]      inet6_addr_add+0x30e/0xa40
[ 6655.805576][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6655.805576][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6655.805576][   T73]      netlink_rcv_skb+0x130/0x360
[ 6655.805576][   T73]      netlink_unicast+0x449/0x710
[ 6655.805576][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6655.805576][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6655.805576][   T73]      ___sys_sendmsg+0xee/0x170
[ 6655.805576][   T73]      __sys_sendmsg+0xcd/0x170
[ 6655.805576][   T73]      do_syscall_64+0xc6/0x1e0
[ 6655.805576][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6655.805576][   T73] 
[ 6655.807558][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6655.807558][   T73]      netdev_get_by_index+0x5e/0x80
[ 6655.807558][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6655.807558][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6655.807558][   T73]      ip6_route_add+0x1c/0x140
[ 6655.807558][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6655.807558][   T73]      addrconf_add_dev+0xe2/0x170
[ 6655.807558][   T73]      inet6_addr_add+0x12f/0xa40
[ 6655.807558][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6655.807558][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6655.807558][   T73]      netlink_rcv_skb+0x130/0x360
[ 6655.807558][   T73]      netlink_unicast+0x449/0x710
[ 6655.807558][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6655.807558][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6655.807558][   T73]      ___sys_sendmsg+0xee/0x170
[ 6655.807558][   T73]      __sys_sendmsg+0xcd/0x170
[ 6655.807558][   T73]      do_syscall_64+0xc6/0x1e0
[ 6655.807558][   T73] 
[ 6655.809535][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6655.809535][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6655.809535][   T73]      ipv6_find_idev+0x102/0x170
[ 6655.809535][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6655.809535][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6655.809535][   T73]      netlink_rcv_skb+0x130/0x360
[ 6655.809535][   T73]      netlink_unicast+0x449/0x710
[ 6655.809535][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6655.809535][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6655.809535][   T73]      ___sys_sendmsg+0xee/0x170
[ 6655.809535][   T73]      __sys_sendmsg+0xcd/0x170
[ 6655.809535][   T73]      do_syscall_64+0xc6/0x1e0
[ 6655.809535][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6655.809535][   T73] 
[ 6655.811099][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6655.811099][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6655.811099][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6655.811099][   T73]      ipv6_find_idev+0x102/0x170
[ 6655.811099][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6655.811099][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6655.811099][   T73]      netlink_rcv_skb+0x130/0x360
[ 6655.811099][   T73]      netlink_unicast+0x449/0x710
[ 6655.811099][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6655.811099][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6655.811099][   T73]      ___sys_sendmsg+0xee/0x170
[ 6655.811099][   T73]      __sys_sendmsg+0xcd/0x170
[ 6655.811099][   T73]      do_syscall_64+0xc6/0x1e0
[ 6655.811099][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6655.811099][   T73] 
[ 6655.812797][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6655.813079][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6655.813079][   T73]      netdev_get_by_index+0x5e/0x80
[ 6655.813079][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6655.813079][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6655.813079][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6655.813079][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6655.813079][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6655.813079][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6655.813079][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6655.813079][   T73]      addrconf_dad_begin+0x310/0x670
[ 6655.813079][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6655.813079][   T73]      process_one_work+0x84d/0x18a0
[ 6655.813079][   T73]      worker_thread+0x587/0xd30
[ 6655.813079][   T73]      kthread+0x28a/0x350
[ 6655.813079][   T73]      ret_from_fork+0x31/0x70
[ 6655.813079][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6655.813079][   T73] 
[ 6655.815014][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6655.815014][   T73]      netdev_get_by_index+0x5e/0x80
[ 6655.815014][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6655.815014][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6655.815014][   T73]      ip6_route_add+0x1c/0x140
[ 6655.815014][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6655.815014][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6655.815014][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6655.815014][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6655.815014][   T73]      netlink_rcv_skb+0x130/0x360
[ 6655.815014][   T73]      netlink_unicast+0x449/0x710
[ 6655.815014][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6655.815014][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6655.815014][   T73]      ___sys_sendmsg+0xee/0x170
[ 6655.815014][   T73]      __sys_sendmsg+0xcd/0x170
[ 6655.815014][   T73]      do_syscall_64+0xc6/0x1e0
[ 6655.815014][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6655.815014][   T73] 
[ 6655.817024][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6655.817024][   T73]      netdev_get_by_index+0x5e/0x80
[ 6655.817024][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6655.817024][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6655.817024][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6655.817024][   T73]      ipv6_add_addr+0x411/0x2000
[ 6655.817024][   T73]      inet6_addr_add+0x30e/0xa40
[ 6655.817024][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6655.817024][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6655.817024][   T73]      netlink_rcv_skb+0x130/0x360
[ 6655.817024][   T73]      netlink_unicast+0x449/0x710
[ 6655.817024][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6655.817024][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6655.817024][   T73]      ___sys_sendmsg+0xee/0x170
[ 6655.817024][   T73]      __sys_sendmsg+0xcd/0x170
[ 6655.817024][   T73]      do_syscall_64+0xc6/0x1e0
[ 6655.817024][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6655.817024][   T73] 
[ 6655.819025][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6655.819025][   T73]      netdev_get_by_index+0x5e/0x80
[ 6655.819025][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6655.819025][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6655.819025][   T73]      ip6_route_add+0x1c/0x140
[ 6655.819025][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6655.819025][   T73]      addrconf_add_dev+0xe2/0x170
[ 6655.819025][   T73]      inet6_addr_add+0x12f/0xa40
[ 6655.819025][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6655.819025][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6655.819025][   T73]      netlink_rcv_skb+0x130/0x360
[ 6655.819025][   T73]      netlink_unicast+0x449/0x710
[ 6655.819025][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6655.819025][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6655.819025][   T73]      ___sys_sendmsg+0xee/0x170
[ 6655.819025][   T73]      __sys_sendmsg+0xcd/0x170
[ 6655.819025][   T73]      do_syscall_64+0xc6/0x1e0
[ 6655.819025][   T73] 
[ 6655.820987][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6655.820987][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6655.820987][   T73]      ipv6_find_idev+0x102/0x170
[ 6655.820987][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6655.820987][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6655.820987][   T73]      netlink_rcv_skb+0x130/0x360
[ 6655.820987][   T73]      netlink_unicast+0x449/0x710
[ 6655.820987][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6655.820987][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6655.820987][   T73]      ___sys_sendmsg+0xee/0x170
[ 6655.820987][   T73]      __sys_sendmsg+0xcd/0x170
[ 6655.820987][   T73]      do_syscall_64+0xc6/0x1e0
[ 6655.820987][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6655.820987][   T73] 
[ 6655.822529][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6655.822529][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6655.822529][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6655.822529][   T73]      ipv6_find_idev+0x102/0x170
[ 6655.822529][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6655.822529][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6655.822529][   T73]      netlink_rcv_skb+0x130/0x360
[ 6655.822529][   T73]      netlink_unicast+0x449/0x710
[ 6655.822529][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6655.822529][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6655.822529][   T73]      ___sys_sendmsg+0xee/0x170
[ 6655.822529][   T73]      __sys_sendmsg+0xcd/0x170
[ 6655.822529][   T73]      do_syscall_64+0xc6/0x1e0
[ 6655.822529][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6655.822529][   T73] 
[ 6655.824211][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6655.824484][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6655.824484][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6655.824484][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6655.824484][   T73]      fib6_nh_init+0xa22/0x1580
[ 6655.824484][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6655.824484][   T73]      ip6_route_add+0x1c/0x140
[ 6655.824484][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6655.824484][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6655.824484][   T73]      netlink_rcv_skb+0x130/0x360
[ 6655.824484][   T73]      netlink_unicast+0x449/0x710
[ 6655.824484][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6655.824484][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6655.824484][   T73]      ___sys_sendmsg+0xee/0x170
[ 6655.824484][   T73]      __sys_sendmsg+0xcd/0x170
[ 6655.824484][   T73]      do_syscall_64+0xc6/0x1e0
[ 6655.824484][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6655.824484][   T73] 
[ 6655.826549][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6655.826549][   T73]      dst_init+0x84/0x4a0
[ 6655.826549][   T73]      dst_alloc+0x97/0x150
[ 6655.826549][   T73]      ip6_dst_alloc+0x23/0x90
[ 6655.826549][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6655.826549][   T73]      ip6_pol_route+0x56f/0x840
[ 6655.826549][   T73]      fib6_rule_lookup+0x456/0x630
[ 6655.826549][   T73]      ip6_route_input+0x59c/0xa50
[ 6655.826549][   T73]      ipv6_rcv+0x397/0x810
[ 6655.826549][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6655.826549][   T73]      process_backlog+0x101/0x620
[ 6655.826549][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6655.826549][   T73]      net_rx_action+0x495/0xbe0
[ 6655.826549][   T73]      __do_softirq+0x1b5/0x7f6
[ 6655.826549][   T73] 
[ 6655.828448][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6655.828448][   T73]      netdev_get_by_index+0x5e/0x80
[ 6655.828448][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6655.828448][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6655.828448][   T73]      ip6_route_add+0x1c/0x140
[ 6655.828448][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6655.828448][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6655.828448][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6655.828448][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6655.828448][   T73]      netlink_rcv_skb+0x130/0x360
[ 6655.828448][   T73]      netlink_unicast+0x449/0x710
[ 6655.828448][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6655.828448][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6655.828448][   T73]      ___sys_sendmsg+0xee/0x170
[ 6655.828448][   T73]      __sys_sendmsg+0xcd/0x170
[ 6655.828448][   T73]      do_syscall_64+0xc6/0x1e0
[ 6655.828448][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6655.828448][   T73] 
[ 6655.830693][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6655.830693][   T73]      netdev_get_by_index+0x5e/0x80
[ 6655.830693][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6655.830693][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6655.830693][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6655.830693][   T73]      ipv6_add_addr+0x411/0x2000
[ 6655.830693][   T73]      inet6_addr_add+0x30e/0xa40
[ 6655.830693][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6655.830693][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6655.830693][   T73]      netlink_rcv_skb+0x130/0x360
[ 6655.830693][   T73]      netlink_unicast+0x449/0x710
[ 6655.830693][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6655.830693][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6655.830693][   T73]      ___sys_sendmsg+0xee/0x170
[ 6655.830693][   T73]      __sys_sendmsg+0xcd/0x170
[ 6655.830693][   T73]      do_syscall_64+0xc6/0x1e0
[ 6655.830693][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6655.830693][   T73] 
[ 6655.832866][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6655.832866][   T73]      netdev_get_by_index+0x5e/0x80
[ 6655.832866][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6655.832866][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6655.832866][   T73]      ip6_route_add+0x1c/0x140
[ 6655.832866][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6655.832866][   T73]      addrconf_add_dev+0xe2/0x170
[ 6655.832866][   T73]      inet6_addr_add+0x12f/0xa40
[ 6655.832866][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6655.832866][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6655.832866][   T73]      netlink_rcv_skb+0x130/0x360
[ 6655.832866][   T73]      netlink_unicast+0x449/0x710
[ 6655.832866][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6655.832866][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6655.832866][   T73]      ___sys_sendmsg+0xee/0x170
[ 6655.832866][   T73]      __sys_sendmsg+0xcd/0x170
[ 6655.832866][   T73]      do_syscall_64+0xc6/0x1e0
[ 6655.832866][   T73] 
[ 6655.835095][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6655.835095][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6655.835095][   T73]      ipv6_find_idev+0x102/0x170
[ 6655.835095][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6655.835095][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6655.835095][   T73]      netlink_rcv_skb+0x130/0x360
[ 6655.835095][   T73]      netlink_unicast+0x449/0x710
[ 6655.835095][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6655.835095][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6655.835095][   T73]      ___sys_sendmsg+0xee/0x170
[ 6655.835095][   T73]      __sys_sendmsg+0xcd/0x170
[ 6655.835095][   T73]      do_syscall_64+0xc6/0x1e0
[ 6655.835095][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6655.835095][   T73] 
[ 6655.836881][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6655.836881][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6655.836881][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6655.836881][   T73]      ipv6_find_idev+0x102/0x170
[ 6655.836881][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6655.836881][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6655.836881][   T73]      netlink_rcv_skb+0x130/0x360
[ 6655.836881][   T73]      netlink_unicast+0x449/0x710
[ 6655.836881][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6655.836881][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6655.836881][   T73]      ___sys_sendmsg+0xee/0x170
[ 6655.836881][   T73]      __sys_sendmsg+0xcd/0x170
[ 6655.836881][   T73]      do_syscall_64+0xc6/0x1e0
[ 6655.836881][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6655.836881][   T73] 
[ 6655.838811][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6655.839081][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6655.839081][   T73]      netdev_get_by_index+0x5e/0x80
[ 6655.839081][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6655.839081][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6655.839081][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6655.839081][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6655.839081][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6655.839081][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6655.839081][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6655.839081][   T73]      addrconf_dad_begin+0x310/0x670
[ 6655.839081][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6655.839081][   T73]      process_one_work+0x84d/0x18a0
[ 6655.839081][   T73]      worker_thread+0x587/0xd30
[ 6655.839081][   T73]      kthread+0x28a/0x350
[ 6655.839081][   T73]      ret_from_fork+0x31/0x70
[ 6655.839081][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6655.839081][   T73] 
[ 6655.841247][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6655.841247][   T73]      netdev_get_by_index+0x5e/0x80
[ 6655.841247][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6655.841247][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6655.841247][   T73]      ip6_route_add+0x1c/0x140
[ 6655.841247][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6655.841247][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6655.841247][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6655.841247][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6655.841247][   T73]      netlink_rcv_skb+0x130/0x360
[ 6655.841247][   T73]      netlink_unicast+0x449/0x710
[ 6655.841247][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6655.841247][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6655.841247][   T73]      ___sys_sendmsg+0xee/0x170
[ 6655.841247][   T73]      __sys_sendmsg+0xcd/0x170
[ 6655.841247][   T73]      do_syscall_64+0xc6/0x1e0
[ 6655.841247][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6655.841247][   T73] 
[ 6655.843427][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6655.843427][   T73]      netdev_get_by_index+0x5e/0x80
[ 6655.843427][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6655.843427][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6655.843427][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6655.843427][   T73]      ipv6_add_addr+0x411/0x2000
[ 6655.843427][   T73]      inet6_addr_add+0x30e/0xa40
[ 6655.843427][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6655.843427][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6655.843427][   T73]      netlink_rcv_skb+0x130/0x360
[ 6655.843427][   T73]      netlink_unicast+0x449/0x710
[ 6655.843427][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6655.843427][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6655.843427][   T73]      ___sys_sendmsg+0xee/0x170
[ 6655.843427][   T73]      __sys_sendmsg+0xcd/0x170
[ 6655.843427][   T73]      do_syscall_64+0xc6/0x1e0
[ 6655.843427][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6655.843427][   T73] 
[ 6655.845666][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6655.845666][   T73]      netdev_get_by_index+0x5e/0x80
[ 6655.845666][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6655.845666][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6655.845666][   T73]      ip6_route_add+0x1c/0x140
[ 6655.845666][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6655.845666][   T73]      addrconf_add_dev+0xe2/0x170
[ 6655.845666][   T73]      inet6_addr_add+0x12f/0xa40
[ 6655.845666][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6655.845666][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6655.845666][   T73]      netlink_rcv_skb+0x130/0x360
[ 6655.845666][   T73]      netlink_unicast+0x449/0x710
[ 6655.845666][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6655.845666][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6655.845666][   T73]      ___sys_sendmsg+0xee/0x170
[ 6655.845666][   T73]      __sys_sendmsg+0xcd/0x170
[ 6655.845666][   T73]      do_syscall_64+0xc6/0x1e0
[ 6655.845666][   T73] 
[ 6655.847939][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6655.847939][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6655.847939][   T73]      ipv6_find_idev+0x102/0x170
[ 6655.847939][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6655.847939][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6655.847939][   T73]      netlink_rcv_skb+0x130/0x360
[ 6655.847939][   T73]      netlink_unicast+0x449/0x710
[ 6655.847939][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6655.847939][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6655.847939][   T73]      ___sys_sendmsg+0xee/0x170
[ 6655.847939][   T73]      __sys_sendmsg+0xcd/0x170
[ 6655.847939][   T73]      do_syscall_64+0xc6/0x1e0
[ 6655.847939][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6655.847939][   T73] 
[ 6655.849666][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6655.849666][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6655.849666][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6655.849666][   T73]      ipv6_find_idev+0x102/0x170
[ 6655.849666][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6655.849666][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6655.849666][   T73]      netlink_rcv_skb+0x130/0x360
[ 6655.849666][   T73]      netlink_unicast+0x449/0x710
[ 6655.849666][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6655.849666][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6655.849666][   T73]      ___sys_sendmsg+0xee/0x170
[ 6655.849666][   T73]      __sys_sendmsg+0xcd/0x170
[ 6655.849666][   T73]      do_syscall_64+0xc6/0x1e0
[ 6655.849666][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6655.849666][   T73] 
[ 6666.087673][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6666.088059][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6666.088059][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6666.088059][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6666.088059][   T73]      fib6_nh_init+0xa22/0x1580
[ 6666.088059][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6666.088059][   T73]      ip6_route_add+0x1c/0x140
[ 6666.088059][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6666.088059][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6666.088059][   T73]      netlink_rcv_skb+0x130/0x360
[ 6666.088059][   T73]      netlink_unicast+0x449/0x710
[ 6666.088059][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6666.088059][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6666.088059][   T73]      ___sys_sendmsg+0xee/0x170
[ 6666.088059][   T73]      __sys_sendmsg+0xcd/0x170
[ 6666.088059][   T73]      do_syscall_64+0xc6/0x1e0
[ 6666.088059][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6666.088059][   T73] 
[ 6666.090010][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6666.090010][   T73]      dst_init+0x84/0x4a0
[ 6666.090010][   T73]      dst_alloc+0x97/0x150
[ 6666.090010][   T73]      ip6_dst_alloc+0x23/0x90
[ 6666.090010][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6666.090010][   T73]      ip6_pol_route+0x56f/0x840
[ 6666.090010][   T73]      fib6_rule_lookup+0x456/0x630
[ 6666.090010][   T73]      ip6_route_input+0x59c/0xa50
[ 6666.090010][   T73]      ipv6_rcv+0x397/0x810
[ 6666.090010][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6666.090010][   T73]      process_backlog+0x101/0x620
[ 6666.090010][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6666.090010][   T73]      net_rx_action+0x495/0xbe0
[ 6666.090010][   T73]      __do_softirq+0x1b5/0x7f6
[ 6666.090010][   T73] 
[ 6666.091664][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6666.091664][   T73]      netdev_get_by_index+0x5e/0x80
[ 6666.091664][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6666.091664][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6666.091664][   T73]      ip6_route_add+0x1c/0x140
[ 6666.091664][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6666.091664][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6666.091664][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6666.091664][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6666.091664][   T73]      netlink_rcv_skb+0x130/0x360
[ 6666.091664][   T73]      netlink_unicast+0x449/0x710
[ 6666.091664][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6666.091664][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6666.091664][   T73]      ___sys_sendmsg+0xee/0x170
[ 6666.091664][   T73]      __sys_sendmsg+0xcd/0x170
[ 6666.091664][   T73]      do_syscall_64+0xc6/0x1e0
[ 6666.091664][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6666.091664][   T73] 
[ 6666.093684][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6666.093684][   T73]      netdev_get_by_index+0x5e/0x80
[ 6666.093684][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6666.093684][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6666.093684][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6666.093684][   T73]      ipv6_add_addr+0x411/0x2000
[ 6666.093684][   T73]      inet6_addr_add+0x30e/0xa40
[ 6666.093684][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6666.093684][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6666.093684][   T73]      netlink_rcv_skb+0x130/0x360
[ 6666.093684][   T73]      netlink_unicast+0x449/0x710
[ 6666.093684][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6666.093684][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6666.093684][   T73]      ___sys_sendmsg+0xee/0x170
[ 6666.093684][   T73]      __sys_sendmsg+0xcd/0x170
[ 6666.093684][   T73]      do_syscall_64+0xc6/0x1e0
[ 6666.093684][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6666.093684][   T73] 
[ 6666.095702][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6666.095702][   T73]      netdev_get_by_index+0x5e/0x80
[ 6666.095702][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6666.095702][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6666.095702][   T73]      ip6_route_add+0x1c/0x140
[ 6666.095702][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6666.095702][   T73]      addrconf_add_dev+0xe2/0x170
[ 6666.095702][   T73]      inet6_addr_add+0x12f/0xa40
[ 6666.095702][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6666.095702][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6666.095702][   T73]      netlink_rcv_skb+0x130/0x360
[ 6666.095702][   T73]      netlink_unicast+0x449/0x710
[ 6666.095702][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6666.095702][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6666.095702][   T73]      ___sys_sendmsg+0xee/0x170
[ 6666.095702][   T73]      __sys_sendmsg+0xcd/0x170
[ 6666.095702][   T73]      do_syscall_64+0xc6/0x1e0
[ 6666.095702][   T73] 
[ 6666.097693][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6666.097693][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6666.097693][   T73]      ipv6_find_idev+0x102/0x170
[ 6666.097693][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6666.097693][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6666.097693][   T73]      netlink_rcv_skb+0x130/0x360
[ 6666.097693][   T73]      netlink_unicast+0x449/0x710
[ 6666.097693][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6666.097693][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6666.097693][   T73]      ___sys_sendmsg+0xee/0x170
[ 6666.097693][   T73]      __sys_sendmsg+0xcd/0x170
[ 6666.097693][   T73]      do_syscall_64+0xc6/0x1e0
[ 6666.097693][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6666.097693][   T73] 
[ 6666.099244][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6666.099244][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6666.099244][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6666.099244][   T73]      ipv6_find_idev+0x102/0x170
[ 6666.099244][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6666.099244][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6666.099244][   T73]      netlink_rcv_skb+0x130/0x360
[ 6666.099244][   T73]      netlink_unicast+0x449/0x710
[ 6666.099244][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6666.099244][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6666.099244][   T73]      ___sys_sendmsg+0xee/0x170
[ 6666.099244][   T73]      __sys_sendmsg+0xcd/0x170
[ 6666.099244][   T73]      do_syscall_64+0xc6/0x1e0
[ 6666.099244][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6666.099244][   T73] 
[ 6666.100936][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6666.101211][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6666.101211][   T73]      netdev_get_by_index+0x5e/0x80
[ 6666.101211][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6666.101211][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6666.101211][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6666.101211][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6666.101211][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6666.101211][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6666.101211][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6666.101211][   T73]      addrconf_dad_begin+0x310/0x670
[ 6666.101211][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6666.101211][   T73]      process_one_work+0x84d/0x18a0
[ 6666.101211][   T73]      worker_thread+0x587/0xd30
[ 6666.101211][   T73]      kthread+0x28a/0x350
[ 6666.101211][   T73]      ret_from_fork+0x31/0x70
[ 6666.101211][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6666.101211][   T73] 
[ 6666.103134][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6666.103134][   T73]      netdev_get_by_index+0x5e/0x80
[ 6666.103134][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6666.103134][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6666.103134][   T73]      ip6_route_add+0x1c/0x140
[ 6666.103134][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6666.103134][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6666.103134][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6666.103134][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6666.103134][   T73]      netlink_rcv_skb+0x130/0x360
[ 6666.103134][   T73]      netlink_unicast+0x449/0x710
[ 6666.103134][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6666.103134][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6666.103134][   T73]      ___sys_sendmsg+0xee/0x170
[ 6666.103134][   T73]      __sys_sendmsg+0xcd/0x170
[ 6666.103134][   T73]      do_syscall_64+0xc6/0x1e0
[ 6666.103134][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6666.103134][   T73] 
[ 6666.105148][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6666.105148][   T73]      netdev_get_by_index+0x5e/0x80
[ 6666.105148][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6666.105148][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6666.105148][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6666.105148][   T73]      ipv6_add_addr+0x411/0x2000
[ 6666.105148][   T73]      inet6_addr_add+0x30e/0xa40
[ 6666.105148][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6666.105148][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6666.105148][   T73]      netlink_rcv_skb+0x130/0x360
[ 6666.105148][   T73]      netlink_unicast+0x449/0x710
[ 6666.105148][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6666.105148][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6666.105148][   T73]      ___sys_sendmsg+0xee/0x170
[ 6666.105148][   T73]      __sys_sendmsg+0xcd/0x170
[ 6666.105148][   T73]      do_syscall_64+0xc6/0x1e0
[ 6666.105148][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6666.105148][   T73] 
[ 6666.107169][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6666.107169][   T73]      netdev_get_by_index+0x5e/0x80
[ 6666.107169][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6666.107169][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6666.107169][   T73]      ip6_route_add+0x1c/0x140
[ 6666.107169][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6666.107169][   T73]      addrconf_add_dev+0xe2/0x170
[ 6666.107169][   T73]      inet6_addr_add+0x12f/0xa40
[ 6666.107169][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6666.107169][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6666.107169][   T73]      netlink_rcv_skb+0x130/0x360
[ 6666.107169][   T73]      netlink_unicast+0x449/0x710
[ 6666.107169][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6666.107169][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6666.107169][   T73]      ___sys_sendmsg+0xee/0x170
[ 6666.107169][   T73]      __sys_sendmsg+0xcd/0x170
[ 6666.107169][   T73]      do_syscall_64+0xc6/0x1e0
[ 6666.107169][   T73] 
[ 6666.109138][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6666.109138][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6666.109138][   T73]      ipv6_find_idev+0x102/0x170
[ 6666.109138][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6666.109138][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6666.109138][   T73]      netlink_rcv_skb+0x130/0x360
[ 6666.109138][   T73]      netlink_unicast+0x449/0x710
[ 6666.109138][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6666.109138][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6666.109138][   T73]      ___sys_sendmsg+0xee/0x170
[ 6666.109138][   T73]      __sys_sendmsg+0xcd/0x170
[ 6666.109138][   T73]      do_syscall_64+0xc6/0x1e0
[ 6666.109138][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6666.109138][   T73] 
[ 6666.110686][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6666.110686][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6666.110686][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6666.110686][   T73]      ipv6_find_idev+0x102/0x170
[ 6666.110686][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6666.110686][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6666.110686][   T73]      netlink_rcv_skb+0x130/0x360
[ 6666.110686][   T73]      netlink_unicast+0x449/0x710
[ 6666.110686][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6666.110686][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6666.110686][   T73]      ___sys_sendmsg+0xee/0x170
[ 6666.110686][   T73]      __sys_sendmsg+0xcd/0x170
[ 6666.110686][   T73]      do_syscall_64+0xc6/0x1e0
[ 6666.110686][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6666.110686][   T73] 
[ 6666.112378][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6666.112666][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6666.112666][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6666.112666][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6666.112666][   T73]      fib6_nh_init+0xa22/0x1580
[ 6666.112666][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6666.112666][   T73]      ip6_route_add+0x1c/0x140
[ 6666.112666][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6666.112666][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6666.112666][   T73]      netlink_rcv_skb+0x130/0x360
[ 6666.112666][   T73]      netlink_unicast+0x449/0x710
[ 6666.112666][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6666.112666][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6666.112666][   T73]      ___sys_sendmsg+0xee/0x170
[ 6666.112666][   T73]      __sys_sendmsg+0xcd/0x170
[ 6666.112666][   T73]      do_syscall_64+0xc6/0x1e0
[ 6666.112666][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6666.112666][   T73] 
[ 6666.114740][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6666.114740][   T73]      dst_init+0x84/0x4a0
[ 6666.114740][   T73]      dst_alloc+0x97/0x150
[ 6666.114740][   T73]      ip6_dst_alloc+0x23/0x90
[ 6666.114740][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6666.114740][   T73]      ip6_pol_route+0x56f/0x840
[ 6666.114740][   T73]      fib6_rule_lookup+0x456/0x630
[ 6666.114740][   T73]      ip6_route_input+0x59c/0xa50
[ 6666.114740][   T73]      ipv6_rcv+0x397/0x810
[ 6666.114740][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6666.114740][   T73]      process_backlog+0x101/0x620
[ 6666.114740][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6666.114740][   T73]      net_rx_action+0x495/0xbe0
[ 6666.114740][   T73]      __do_softirq+0x1b5/0x7f6
[ 6666.114740][   T73] 
[ 6666.116563][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6666.116563][   T73]      netdev_get_by_index+0x5e/0x80
[ 6666.116563][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6666.116563][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6666.116563][   T73]      ip6_route_add+0x1c/0x140
[ 6666.116563][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6666.116563][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6666.116563][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6666.116563][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6666.116563][   T73]      netlink_rcv_skb+0x130/0x360
[ 6666.116563][   T73]      netlink_unicast+0x449/0x710
[ 6666.116563][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6666.116563][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6666.116563][   T73]      ___sys_sendmsg+0xee/0x170
[ 6666.116563][   T73]      __sys_sendmsg+0xcd/0x170
[ 6666.116563][   T73]      do_syscall_64+0xc6/0x1e0
[ 6666.116563][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6666.116563][   T73] 
[ 6666.118810][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6666.118810][   T73]      netdev_get_by_index+0x5e/0x80
[ 6666.118810][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6666.118810][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6666.118810][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6666.118810][   T73]      ipv6_add_addr+0x411/0x2000
[ 6666.118810][   T73]      inet6_addr_add+0x30e/0xa40
[ 6666.118810][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6666.118810][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6666.118810][   T73]      netlink_rcv_skb+0x130/0x360
[ 6666.118810][   T73]      netlink_unicast+0x449/0x710
[ 6666.118810][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6666.118810][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6666.118810][   T73]      ___sys_sendmsg+0xee/0x170
[ 6666.118810][   T73]      __sys_sendmsg+0xcd/0x170
[ 6666.118810][   T73]      do_syscall_64+0xc6/0x1e0
[ 6666.118810][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6666.118810][   T73] 
[ 6666.121078][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6666.121078][   T73]      netdev_get_by_index+0x5e/0x80
[ 6666.121078][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6666.121078][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6666.121078][   T73]      ip6_route_add+0x1c/0x140
[ 6666.121078][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6666.121078][   T73]      addrconf_add_dev+0xe2/0x170
[ 6666.121078][   T73]      inet6_addr_add+0x12f/0xa40
[ 6666.121078][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6666.121078][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6666.121078][   T73]      netlink_rcv_skb+0x130/0x360
[ 6666.121078][   T73]      netlink_unicast+0x449/0x710
[ 6666.121078][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6666.121078][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6666.121078][   T73]      ___sys_sendmsg+0xee/0x170
[ 6666.121078][   T73]      __sys_sendmsg+0xcd/0x170
[ 6666.121078][   T73]      do_syscall_64+0xc6/0x1e0
[ 6666.121078][   T73] 
[ 6666.123227][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6666.123227][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6666.123227][   T73]      ipv6_find_idev+0x102/0x170
[ 6666.123227][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6666.123227][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6666.123227][   T73]      netlink_rcv_skb+0x130/0x360
[ 6666.123227][   T73]      netlink_unicast+0x449/0x710
[ 6666.123227][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6666.123227][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6666.123227][   T73]      ___sys_sendmsg+0xee/0x170
[ 6666.123227][   T73]      __sys_sendmsg+0xcd/0x170
[ 6666.123227][   T73]      do_syscall_64+0xc6/0x1e0
[ 6666.123227][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6666.123227][   T73] 
[ 6666.124954][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6666.124954][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6666.124954][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6666.124954][   T73]      ipv6_find_idev+0x102/0x170
[ 6666.124954][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6666.124954][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6666.124954][   T73]      netlink_rcv_skb+0x130/0x360
[ 6666.124954][   T73]      netlink_unicast+0x449/0x710
[ 6666.124954][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6666.124954][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6666.124954][   T73]      ___sys_sendmsg+0xee/0x170
[ 6666.124954][   T73]      __sys_sendmsg+0xcd/0x170
[ 6666.124954][   T73]      do_syscall_64+0xc6/0x1e0
[ 6666.124954][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6666.124954][   T73] 
[ 6666.126888][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6666.127164][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6666.127164][   T73]      netdev_get_by_index+0x5e/0x80
[ 6666.127164][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6666.127164][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6666.127164][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6666.127164][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6666.127164][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6666.127164][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6666.127164][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6666.127164][   T73]      addrconf_dad_begin+0x310/0x670
[ 6666.127164][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6666.127164][   T73]      process_one_work+0x84d/0x18a0
[ 6666.127164][   T73]      worker_thread+0x587/0xd30
[ 6666.127164][   T73]      kthread+0x28a/0x350
[ 6666.127164][   T73]      ret_from_fork+0x31/0x70
[ 6666.127164][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6666.127164][   T73] 
[ 6666.129325][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6666.129325][   T73]      netdev_get_by_index+0x5e/0x80
[ 6666.129325][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6666.129325][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6666.129325][   T73]      ip6_route_add+0x1c/0x140
[ 6666.129325][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6666.129325][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6666.129325][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6666.129325][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6666.129325][   T73]      netlink_rcv_skb+0x130/0x360
[ 6666.129325][   T73]      netlink_unicast+0x449/0x710
[ 6666.129325][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6666.129325][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6666.129325][   T73]      ___sys_sendmsg+0xee/0x170
[ 6666.129325][   T73]      __sys_sendmsg+0xcd/0x170
[ 6666.129325][   T73]      do_syscall_64+0xc6/0x1e0
[ 6666.129325][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6666.129325][   T73] 
[ 6666.131577][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6666.131577][   T73]      netdev_get_by_index+0x5e/0x80
[ 6666.131577][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6666.131577][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6666.131577][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6666.131577][   T73]      ipv6_add_addr+0x411/0x2000
[ 6666.131577][   T73]      inet6_addr_add+0x30e/0xa40
[ 6666.131577][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6666.131577][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6666.131577][   T73]      netlink_rcv_skb+0x130/0x360
[ 6666.131577][   T73]      netlink_unicast+0x449/0x710
[ 6666.131577][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6666.131577][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6666.131577][   T73]      ___sys_sendmsg+0xee/0x170
[ 6666.131577][   T73]      __sys_sendmsg+0xcd/0x170
[ 6666.131577][   T73]      do_syscall_64+0xc6/0x1e0
[ 6666.131577][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6666.131577][   T73] 
[ 6666.133832][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6666.133832][   T73]      netdev_get_by_index+0x5e/0x80
[ 6666.133832][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6666.133832][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6666.133832][   T73]      ip6_route_add+0x1c/0x140
[ 6666.133832][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6666.133832][   T73]      addrconf_add_dev+0xe2/0x170
[ 6666.133832][   T73]      inet6_addr_add+0x12f/0xa40
[ 6666.133832][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6666.133832][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6666.133832][   T73]      netlink_rcv_skb+0x130/0x360
[ 6666.133832][   T73]      netlink_unicast+0x449/0x710
[ 6666.133832][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6666.133832][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6666.133832][   T73]      ___sys_sendmsg+0xee/0x170
[ 6666.133832][   T73]      __sys_sendmsg+0xcd/0x170
[ 6666.133832][   T73]      do_syscall_64+0xc6/0x1e0
[ 6666.133832][   T73] 
[ 6666.136052][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6666.136052][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6666.136052][   T73]      ipv6_find_idev+0x102/0x170
[ 6666.136052][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6666.136052][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6666.136052][   T73]      netlink_rcv_skb+0x130/0x360
[ 6666.136052][   T73]      netlink_unicast+0x449/0x710
[ 6666.136052][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6666.136052][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6666.136052][   T73]      ___sys_sendmsg+0xee/0x170
[ 6666.136052][   T73]      __sys_sendmsg+0xcd/0x170
[ 6666.136052][   T73]      do_syscall_64+0xc6/0x1e0
[ 6666.136052][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6666.136052][   T73] 
[ 6666.137779][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6666.137779][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6666.137779][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6666.137779][   T73]      ipv6_find_idev+0x102/0x170
[ 6666.137779][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6666.137779][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6666.137779][   T73]      netlink_rcv_skb+0x130/0x360
[ 6666.137779][   T73]      netlink_unicast+0x449/0x710
[ 6666.137779][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6666.137779][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6666.137779][   T73]      ___sys_sendmsg+0xee/0x170
[ 6666.137779][   T73]      __sys_sendmsg+0xcd/0x170
[ 6666.137779][   T73]      do_syscall_64+0xc6/0x1e0
[ 6666.137779][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6666.137779][   T73] 
[ 6676.151691][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6676.152131][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6676.152131][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6676.152131][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6676.152131][   T73]      fib6_nh_init+0xa22/0x1580
[ 6676.152131][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6676.152131][   T73]      ip6_route_add+0x1c/0x140
[ 6676.152131][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6676.152131][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6676.152131][   T73]      netlink_rcv_skb+0x130/0x360
[ 6676.152131][   T73]      netlink_unicast+0x449/0x710
[ 6676.152131][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6676.152131][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6676.152131][   T73]      ___sys_sendmsg+0xee/0x170
[ 6676.152131][   T73]      __sys_sendmsg+0xcd/0x170
[ 6676.152131][   T73]      do_syscall_64+0xc6/0x1e0
[ 6676.152131][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6676.152131][   T73] 
[ 6676.154063][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6676.154063][   T73]      dst_init+0x84/0x4a0
[ 6676.154063][   T73]      dst_alloc+0x97/0x150
[ 6676.154063][   T73]      ip6_dst_alloc+0x23/0x90
[ 6676.154063][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6676.154063][   T73]      ip6_pol_route+0x56f/0x840
[ 6676.154063][   T73]      fib6_rule_lookup+0x456/0x630
[ 6676.154063][   T73]      ip6_route_input+0x59c/0xa50
[ 6676.154063][   T73]      ipv6_rcv+0x397/0x810
[ 6676.154063][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6676.154063][   T73]      process_backlog+0x101/0x620
[ 6676.154063][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6676.154063][   T73]      net_rx_action+0x495/0xbe0
[ 6676.154063][   T73]      __do_softirq+0x1b5/0x7f6
[ 6676.154063][   T73] 
[ 6676.155743][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6676.155743][   T73]      netdev_get_by_index+0x5e/0x80
[ 6676.155743][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6676.155743][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6676.155743][   T73]      ip6_route_add+0x1c/0x140
[ 6676.155743][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6676.155743][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6676.155743][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6676.155743][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6676.155743][   T73]      netlink_rcv_skb+0x130/0x360
[ 6676.155743][   T73]      netlink_unicast+0x449/0x710
[ 6676.155743][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6676.155743][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6676.155743][   T73]      ___sys_sendmsg+0xee/0x170
[ 6676.155743][   T73]      __sys_sendmsg+0xcd/0x170
[ 6676.155743][   T73]      do_syscall_64+0xc6/0x1e0
[ 6676.155743][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6676.155743][   T73] 
[ 6676.157786][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6676.157786][   T73]      netdev_get_by_index+0x5e/0x80
[ 6676.157786][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6676.157786][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6676.157786][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6676.157786][   T73]      ipv6_add_addr+0x411/0x2000
[ 6676.157786][   T73]      inet6_addr_add+0x30e/0xa40
[ 6676.157786][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6676.157786][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6676.157786][   T73]      netlink_rcv_skb+0x130/0x360
[ 6676.157786][   T73]      netlink_unicast+0x449/0x710
[ 6676.157786][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6676.157786][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6676.157786][   T73]      ___sys_sendmsg+0xee/0x170
[ 6676.157786][   T73]      __sys_sendmsg+0xcd/0x170
[ 6676.157786][   T73]      do_syscall_64+0xc6/0x1e0
[ 6676.157786][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6676.157786][   T73] 
[ 6676.159814][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6676.159814][   T73]      netdev_get_by_index+0x5e/0x80
[ 6676.159814][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6676.159814][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6676.159814][   T73]      ip6_route_add+0x1c/0x140
[ 6676.159814][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6676.159814][   T73]      addrconf_add_dev+0xe2/0x170
[ 6676.159814][   T73]      inet6_addr_add+0x12f/0xa40
[ 6676.159814][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6676.159814][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6676.159814][   T73]      netlink_rcv_skb+0x130/0x360
[ 6676.159814][   T73]      netlink_unicast+0x449/0x710
[ 6676.159814][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6676.159814][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6676.159814][   T73]      ___sys_sendmsg+0xee/0x170
[ 6676.159814][   T73]      __sys_sendmsg+0xcd/0x170
[ 6676.159814][   T73]      do_syscall_64+0xc6/0x1e0
[ 6676.159814][   T73] 
[ 6676.161817][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6676.161817][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6676.161817][   T73]      ipv6_find_idev+0x102/0x170
[ 6676.161817][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6676.161817][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6676.161817][   T73]      netlink_rcv_skb+0x130/0x360
[ 6676.161817][   T73]      netlink_unicast+0x449/0x710
[ 6676.161817][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6676.161817][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6676.161817][   T73]      ___sys_sendmsg+0xee/0x170
[ 6676.161817][   T73]      __sys_sendmsg+0xcd/0x170
[ 6676.161817][   T73]      do_syscall_64+0xc6/0x1e0
[ 6676.161817][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6676.161817][   T73] 
[ 6676.163394][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6676.163394][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6676.163394][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6676.163394][   T73]      ipv6_find_idev+0x102/0x170
[ 6676.163394][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6676.163394][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6676.163394][   T73]      netlink_rcv_skb+0x130/0x360
[ 6676.163394][   T73]      netlink_unicast+0x449/0x710
[ 6676.163394][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6676.163394][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6676.163394][   T73]      ___sys_sendmsg+0xee/0x170
[ 6676.163394][   T73]      __sys_sendmsg+0xcd/0x170
[ 6676.163394][   T73]      do_syscall_64+0xc6/0x1e0
[ 6676.163394][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6676.163394][   T73] 
[ 6676.165653][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6676.165936][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6676.165936][   T73]      netdev_get_by_index+0x5e/0x80
[ 6676.165936][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6676.165936][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6676.165936][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6676.165936][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6676.165936][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6676.165936][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6676.165936][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6676.165936][   T73]      addrconf_dad_begin+0x310/0x670
[ 6676.165936][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6676.165936][   T73]      process_one_work+0x84d/0x18a0
[ 6676.165936][   T73]      worker_thread+0x587/0xd30
[ 6676.165936][   T73]      kthread+0x28a/0x350
[ 6676.165936][   T73]      ret_from_fork+0x31/0x70
[ 6676.165936][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6676.165936][   T73] 
[ 6676.168555][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6676.168555][   T73]      netdev_get_by_index+0x5e/0x80
[ 6676.168555][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6676.168555][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6676.168555][   T73]      ip6_route_add+0x1c/0x140
[ 6676.168555][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6676.168555][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6676.168555][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6676.168555][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6676.168555][   T73]      netlink_rcv_skb+0x130/0x360
[ 6676.168555][   T73]      netlink_unicast+0x449/0x710
[ 6676.168555][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6676.168555][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6676.168555][   T73]      ___sys_sendmsg+0xee/0x170
[ 6676.168555][   T73]      __sys_sendmsg+0xcd/0x170
[ 6676.168555][   T73]      do_syscall_64+0xc6/0x1e0
[ 6676.168555][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6676.168555][   T73] 
[ 6676.170593][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6676.170593][   T73]      netdev_get_by_index+0x5e/0x80
[ 6676.170593][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6676.170593][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6676.170593][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6676.170593][   T73]      ipv6_add_addr+0x411/0x2000
[ 6676.170593][   T73]      inet6_addr_add+0x30e/0xa40
[ 6676.170593][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6676.170593][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6676.170593][   T73]      netlink_rcv_skb+0x130/0x360
[ 6676.170593][   T73]      netlink_unicast+0x449/0x710
[ 6676.170593][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6676.170593][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6676.170593][   T73]      ___sys_sendmsg+0xee/0x170
[ 6676.170593][   T73]      __sys_sendmsg+0xcd/0x170
[ 6676.170593][   T73]      do_syscall_64+0xc6/0x1e0
[ 6676.170593][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6676.170593][   T73] 
[ 6676.172619][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6676.172619][   T73]      netdev_get_by_index+0x5e/0x80
[ 6676.172619][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6676.172619][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6676.172619][   T73]      ip6_route_add+0x1c/0x140
[ 6676.172619][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6676.172619][   T73]      addrconf_add_dev+0xe2/0x170
[ 6676.172619][   T73]      inet6_addr_add+0x12f/0xa40
[ 6676.172619][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6676.172619][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6676.172619][   T73]      netlink_rcv_skb+0x130/0x360
[ 6676.172619][   T73]      netlink_unicast+0x449/0x710
[ 6676.172619][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6676.172619][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6676.172619][   T73]      ___sys_sendmsg+0xee/0x170
[ 6676.172619][   T73]      __sys_sendmsg+0xcd/0x170
[ 6676.172619][   T73]      do_syscall_64+0xc6/0x1e0
[ 6676.172619][   T73] 
[ 6676.174629][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6676.174629][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6676.174629][   T73]      ipv6_find_idev+0x102/0x170
[ 6676.174629][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6676.174629][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6676.174629][   T73]      netlink_rcv_skb+0x130/0x360
[ 6676.174629][   T73]      netlink_unicast+0x449/0x710
[ 6676.174629][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6676.174629][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6676.174629][   T73]      ___sys_sendmsg+0xee/0x170
[ 6676.174629][   T73]      __sys_sendmsg+0xcd/0x170
[ 6676.174629][   T73]      do_syscall_64+0xc6/0x1e0
[ 6676.174629][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6676.174629][   T73] 
[ 6676.176192][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6676.176192][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6676.176192][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6676.176192][   T73]      ipv6_find_idev+0x102/0x170
[ 6676.176192][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6676.176192][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6676.176192][   T73]      netlink_rcv_skb+0x130/0x360
[ 6676.176192][   T73]      netlink_unicast+0x449/0x710
[ 6676.176192][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6676.176192][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6676.176192][   T73]      ___sys_sendmsg+0xee/0x170
[ 6676.176192][   T73]      __sys_sendmsg+0xcd/0x170
[ 6676.176192][   T73]      do_syscall_64+0xc6/0x1e0
[ 6676.176192][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6676.176192][   T73] 
[ 6676.177892][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6676.178181][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6676.178181][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6676.178181][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6676.178181][   T73]      fib6_nh_init+0xa22/0x1580
[ 6676.178181][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6676.178181][   T73]      ip6_route_add+0x1c/0x140
[ 6676.178181][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6676.178181][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6676.178181][   T73]      netlink_rcv_skb+0x130/0x360
[ 6676.178181][   T73]      netlink_unicast+0x449/0x710
[ 6676.178181][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6676.178181][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6676.178181][   T73]      ___sys_sendmsg+0xee/0x170
[ 6676.178181][   T73]      __sys_sendmsg+0xcd/0x170
[ 6676.178181][   T73]      do_syscall_64+0xc6/0x1e0
[ 6676.178181][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6676.178181][   T73] 
[ 6676.180280][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6676.180280][   T73]      dst_init+0x84/0x4a0
[ 6676.180280][   T73]      dst_alloc+0x97/0x150
[ 6676.180280][   T73]      ip6_dst_alloc+0x23/0x90
[ 6676.180280][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6676.180280][   T73]      ip6_pol_route+0x56f/0x840
[ 6676.180280][   T73]      fib6_rule_lookup+0x456/0x630
[ 6676.180280][   T73]      ip6_route_input+0x59c/0xa50
[ 6676.180280][   T73]      ipv6_rcv+0x397/0x810
[ 6676.180280][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6676.180280][   T73]      process_backlog+0x101/0x620
[ 6676.180280][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6676.180280][   T73]      net_rx_action+0x495/0xbe0
[ 6676.180280][   T73]      __do_softirq+0x1b5/0x7f6
[ 6676.180280][   T73] 
[ 6676.182186][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6676.182186][   T73]      netdev_get_by_index+0x5e/0x80
[ 6676.182186][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6676.182186][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6676.182186][   T73]      ip6_route_add+0x1c/0x140
[ 6676.182186][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6676.182186][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6676.182186][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6676.182186][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6676.182186][   T73]      netlink_rcv_skb+0x130/0x360
[ 6676.182186][   T73]      netlink_unicast+0x449/0x710
[ 6676.182186][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6676.182186][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6676.182186][   T73]      ___sys_sendmsg+0xee/0x170
[ 6676.182186][   T73]      __sys_sendmsg+0xcd/0x170
[ 6676.182186][   T73]      do_syscall_64+0xc6/0x1e0
[ 6676.182186][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6676.182186][   T73] 
[ 6676.184464][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6676.184464][   T73]      netdev_get_by_index+0x5e/0x80
[ 6676.184464][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6676.184464][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6676.184464][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6676.184464][   T73]      ipv6_add_addr+0x411/0x2000
[ 6676.184464][   T73]      inet6_addr_add+0x30e/0xa40
[ 6676.184464][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6676.184464][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6676.184464][   T73]      netlink_rcv_skb+0x130/0x360
[ 6676.184464][   T73]      netlink_unicast+0x449/0x710
[ 6676.184464][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6676.184464][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6676.184464][   T73]      ___sys_sendmsg+0xee/0x170
[ 6676.184464][   T73]      __sys_sendmsg+0xcd/0x170
[ 6676.184464][   T73]      do_syscall_64+0xc6/0x1e0
[ 6676.184464][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6676.184464][   T73] 
[ 6676.186751][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6676.186751][   T73]      netdev_get_by_index+0x5e/0x80
[ 6676.186751][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6676.186751][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6676.186751][   T73]      ip6_route_add+0x1c/0x140
[ 6676.186751][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6676.186751][   T73]      addrconf_add_dev+0xe2/0x170
[ 6676.186751][   T73]      inet6_addr_add+0x12f/0xa40
[ 6676.186751][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6676.186751][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6676.186751][   T73]      netlink_rcv_skb+0x130/0x360
[ 6676.186751][   T73]      netlink_unicast+0x449/0x710
[ 6676.186751][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6676.186751][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6676.186751][   T73]      ___sys_sendmsg+0xee/0x170
[ 6676.186751][   T73]      __sys_sendmsg+0xcd/0x170
[ 6676.186751][   T73]      do_syscall_64+0xc6/0x1e0
[ 6676.186751][   T73] 
[ 6676.188923][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6676.188923][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6676.188923][   T73]      ipv6_find_idev+0x102/0x170
[ 6676.188923][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6676.188923][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6676.188923][   T73]      netlink_rcv_skb+0x130/0x360
[ 6676.188923][   T73]      netlink_unicast+0x449/0x710
[ 6676.188923][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6676.188923][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6676.188923][   T73]      ___sys_sendmsg+0xee/0x170
[ 6676.188923][   T73]      __sys_sendmsg+0xcd/0x170
[ 6676.188923][   T73]      do_syscall_64+0xc6/0x1e0
[ 6676.188923][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6676.188923][   T73] 
[ 6676.190724][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6676.190724][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6676.190724][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6676.190724][   T73]      ipv6_find_idev+0x102/0x170
[ 6676.190724][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6676.190724][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6676.190724][   T73]      netlink_rcv_skb+0x130/0x360
[ 6676.190724][   T73]      netlink_unicast+0x449/0x710
[ 6676.190724][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6676.190724][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6676.190724][   T73]      ___sys_sendmsg+0xee/0x170
[ 6676.190724][   T73]      __sys_sendmsg+0xcd/0x170
[ 6676.190724][   T73]      do_syscall_64+0xc6/0x1e0
[ 6676.190724][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6676.190724][   T73] 
[ 6676.192688][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6676.192971][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6676.192971][   T73]      netdev_get_by_index+0x5e/0x80
[ 6676.192971][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6676.192971][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6676.192971][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6676.192971][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6676.192971][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6676.192971][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6676.192971][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6676.192971][   T73]      addrconf_dad_begin+0x310/0x670
[ 6676.192971][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6676.192971][   T73]      process_one_work+0x84d/0x18a0
[ 6676.192971][   T73]      worker_thread+0x587/0xd30
[ 6676.192971][   T73]      kthread+0x28a/0x350
[ 6676.192971][   T73]      ret_from_fork+0x31/0x70
[ 6676.192971][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6676.192971][   T73] 
[ 6676.195169][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6676.195169][   T73]      netdev_get_by_index+0x5e/0x80
[ 6676.195169][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6676.195169][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6676.195169][   T73]      ip6_route_add+0x1c/0x140
[ 6676.195169][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6676.195169][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6676.195169][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6676.195169][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6676.195169][   T73]      netlink_rcv_skb+0x130/0x360
[ 6676.195169][   T73]      netlink_unicast+0x449/0x710
[ 6676.195169][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6676.195169][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6676.195169][   T73]      ___sys_sendmsg+0xee/0x170
[ 6676.195169][   T73]      __sys_sendmsg+0xcd/0x170
[ 6676.195169][   T73]      do_syscall_64+0xc6/0x1e0
[ 6676.195169][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6676.195169][   T73] 
[ 6676.197443][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6676.197443][   T73]      netdev_get_by_index+0x5e/0x80
[ 6676.197443][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6676.197443][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6676.197443][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6676.197443][   T73]      ipv6_add_addr+0x411/0x2000
[ 6676.197443][   T73]      inet6_addr_add+0x30e/0xa40
[ 6676.197443][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6676.197443][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6676.197443][   T73]      netlink_rcv_skb+0x130/0x360
[ 6676.197443][   T73]      netlink_unicast+0x449/0x710
[ 6676.197443][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6676.197443][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6676.197443][   T73]      ___sys_sendmsg+0xee/0x170
[ 6676.197443][   T73]      __sys_sendmsg+0xcd/0x170
[ 6676.197443][   T73]      do_syscall_64+0xc6/0x1e0
[ 6676.197443][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6676.197443][   T73] 
[ 6676.199644][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6676.199644][   T73]      netdev_get_by_index+0x5e/0x80
[ 6676.199644][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6676.199644][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6676.199644][   T73]      ip6_route_add+0x1c/0x140
[ 6676.199644][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6676.199644][   T73]      addrconf_add_dev+0xe2/0x170
[ 6676.199644][   T73]      inet6_addr_add+0x12f/0xa40
[ 6676.199644][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6676.199644][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6676.199644][   T73]      netlink_rcv_skb+0x130/0x360
[ 6676.199644][   T73]      netlink_unicast+0x449/0x710
[ 6676.199644][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6676.199644][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6676.199644][   T73]      ___sys_sendmsg+0xee/0x170
[ 6676.199644][   T73]      __sys_sendmsg+0xcd/0x170
[ 6676.199644][   T73]      do_syscall_64+0xc6/0x1e0
[ 6676.199644][   T73] 
[ 6676.201937][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6676.201937][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6676.201937][   T73]      ipv6_find_idev+0x102/0x170
[ 6676.201937][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6676.201937][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6676.201937][   T73]      netlink_rcv_skb+0x130/0x360
[ 6676.201937][   T73]      netlink_unicast+0x449/0x710
[ 6676.201937][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6676.201937][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6676.201937][   T73]      ___sys_sendmsg+0xee/0x170
[ 6676.201937][   T73]      __sys_sendmsg+0xcd/0x170
[ 6676.201937][   T73]      do_syscall_64+0xc6/0x1e0
[ 6676.201937][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6676.201937][   T73] 
[ 6676.203695][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6676.203695][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6676.203695][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6676.203695][   T73]      ipv6_find_idev+0x102/0x170
[ 6676.203695][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6676.203695][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6676.203695][   T73]      netlink_rcv_skb+0x130/0x360
[ 6676.203695][   T73]      netlink_unicast+0x449/0x710
[ 6676.203695][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6676.203695][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6676.203695][   T73]      ___sys_sendmsg+0xee/0x170
[ 6676.203695][   T73]      __sys_sendmsg+0xcd/0x170
[ 6676.203695][   T73]      do_syscall_64+0xc6/0x1e0
[ 6676.203695][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6676.203695][   T73] 
[ 6686.207756][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6686.208151][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6686.208151][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6686.208151][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6686.208151][   T73]      fib6_nh_init+0xa22/0x1580
[ 6686.208151][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6686.208151][   T73]      ip6_route_add+0x1c/0x140
[ 6686.208151][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6686.208151][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6686.208151][   T73]      netlink_rcv_skb+0x130/0x360
[ 6686.208151][   T73]      netlink_unicast+0x449/0x710
[ 6686.208151][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6686.208151][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6686.208151][   T73]      ___sys_sendmsg+0xee/0x170
[ 6686.208151][   T73]      __sys_sendmsg+0xcd/0x170
[ 6686.208151][   T73]      do_syscall_64+0xc6/0x1e0
[ 6686.208151][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6686.208151][   T73] 
[ 6686.210073][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6686.210073][   T73]      dst_init+0x84/0x4a0
[ 6686.210073][   T73]      dst_alloc+0x97/0x150
[ 6686.210073][   T73]      ip6_dst_alloc+0x23/0x90
[ 6686.210073][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6686.210073][   T73]      ip6_pol_route+0x56f/0x840
[ 6686.210073][   T73]      fib6_rule_lookup+0x456/0x630
[ 6686.210073][   T73]      ip6_route_input+0x59c/0xa50
[ 6686.210073][   T73]      ipv6_rcv+0x397/0x810
[ 6686.210073][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6686.210073][   T73]      process_backlog+0x101/0x620
[ 6686.210073][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6686.210073][   T73]      net_rx_action+0x495/0xbe0
[ 6686.210073][   T73]      __do_softirq+0x1b5/0x7f6
[ 6686.210073][   T73] 
[ 6686.211721][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6686.211721][   T73]      netdev_get_by_index+0x5e/0x80
[ 6686.211721][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6686.211721][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6686.211721][   T73]      ip6_route_add+0x1c/0x140
[ 6686.211721][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6686.211721][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6686.211721][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6686.211721][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6686.211721][   T73]      netlink_rcv_skb+0x130/0x360
[ 6686.211721][   T73]      netlink_unicast+0x449/0x710
[ 6686.211721][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6686.211721][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6686.211721][   T73]      ___sys_sendmsg+0xee/0x170
[ 6686.211721][   T73]      __sys_sendmsg+0xcd/0x170
[ 6686.211721][   T73]      do_syscall_64+0xc6/0x1e0
[ 6686.211721][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6686.211721][   T73] 
[ 6686.213740][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6686.213740][   T73]      netdev_get_by_index+0x5e/0x80
[ 6686.213740][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6686.213740][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6686.213740][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6686.213740][   T73]      ipv6_add_addr+0x411/0x2000
[ 6686.213740][   T73]      inet6_addr_add+0x30e/0xa40
[ 6686.213740][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6686.213740][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6686.213740][   T73]      netlink_rcv_skb+0x130/0x360
[ 6686.213740][   T73]      netlink_unicast+0x449/0x710
[ 6686.213740][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6686.213740][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6686.213740][   T73]      ___sys_sendmsg+0xee/0x170
[ 6686.213740][   T73]      __sys_sendmsg+0xcd/0x170
[ 6686.213740][   T73]      do_syscall_64+0xc6/0x1e0
[ 6686.213740][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6686.213740][   T73] 
[ 6686.215744][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6686.215744][   T73]      netdev_get_by_index+0x5e/0x80
[ 6686.215744][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6686.215744][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6686.215744][   T73]      ip6_route_add+0x1c/0x140
[ 6686.215744][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6686.215744][   T73]      addrconf_add_dev+0xe2/0x170
[ 6686.215744][   T73]      inet6_addr_add+0x12f/0xa40
[ 6686.215744][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6686.215744][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6686.215744][   T73]      netlink_rcv_skb+0x130/0x360
[ 6686.215744][   T73]      netlink_unicast+0x449/0x710
[ 6686.215744][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6686.215744][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6686.215744][   T73]      ___sys_sendmsg+0xee/0x170
[ 6686.215744][   T73]      __sys_sendmsg+0xcd/0x170
[ 6686.215744][   T73]      do_syscall_64+0xc6/0x1e0
[ 6686.215744][   T73] 
[ 6686.217711][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6686.217711][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6686.217711][   T73]      ipv6_find_idev+0x102/0x170
[ 6686.217711][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6686.217711][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6686.217711][   T73]      netlink_rcv_skb+0x130/0x360
[ 6686.217711][   T73]      netlink_unicast+0x449/0x710
[ 6686.217711][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6686.217711][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6686.217711][   T73]      ___sys_sendmsg+0xee/0x170
[ 6686.217711][   T73]      __sys_sendmsg+0xcd/0x170
[ 6686.217711][   T73]      do_syscall_64+0xc6/0x1e0
[ 6686.217711][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6686.217711][   T73] 
[ 6686.219255][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6686.219255][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6686.219255][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6686.219255][   T73]      ipv6_find_idev+0x102/0x170
[ 6686.219255][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6686.219255][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6686.219255][   T73]      netlink_rcv_skb+0x130/0x360
[ 6686.219255][   T73]      netlink_unicast+0x449/0x710
[ 6686.219255][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6686.219255][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6686.219255][   T73]      ___sys_sendmsg+0xee/0x170
[ 6686.219255][   T73]      __sys_sendmsg+0xcd/0x170
[ 6686.219255][   T73]      do_syscall_64+0xc6/0x1e0
[ 6686.219255][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6686.219255][   T73] 
[ 6686.220962][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6686.221239][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6686.221239][   T73]      netdev_get_by_index+0x5e/0x80
[ 6686.221239][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6686.221239][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6686.221239][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6686.221239][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6686.221239][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6686.221239][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6686.221239][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6686.221239][   T73]      addrconf_dad_begin+0x310/0x670
[ 6686.221239][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6686.221239][   T73]      process_one_work+0x84d/0x18a0
[ 6686.221239][   T73]      worker_thread+0x587/0xd30
[ 6686.221239][   T73]      kthread+0x28a/0x350
[ 6686.221239][   T73]      ret_from_fork+0x31/0x70
[ 6686.221239][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6686.221239][   T73] 
[ 6686.223155][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6686.223155][   T73]      netdev_get_by_index+0x5e/0x80
[ 6686.223155][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6686.223155][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6686.223155][   T73]      ip6_route_add+0x1c/0x140
[ 6686.223155][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6686.223155][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6686.223155][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6686.223155][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6686.223155][   T73]      netlink_rcv_skb+0x130/0x360
[ 6686.223155][   T73]      netlink_unicast+0x449/0x710
[ 6686.223155][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6686.223155][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6686.223155][   T73]      ___sys_sendmsg+0xee/0x170
[ 6686.223155][   T73]      __sys_sendmsg+0xcd/0x170
[ 6686.223155][   T73]      do_syscall_64+0xc6/0x1e0
[ 6686.223155][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6686.223155][   T73] 
[ 6686.225158][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6686.225158][   T73]      netdev_get_by_index+0x5e/0x80
[ 6686.225158][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6686.225158][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6686.225158][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6686.225158][   T73]      ipv6_add_addr+0x411/0x2000
[ 6686.225158][   T73]      inet6_addr_add+0x30e/0xa40
[ 6686.225158][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6686.225158][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6686.225158][   T73]      netlink_rcv_skb+0x130/0x360
[ 6686.225158][   T73]      netlink_unicast+0x449/0x710
[ 6686.225158][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6686.225158][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6686.225158][   T73]      ___sys_sendmsg+0xee/0x170
[ 6686.225158][   T73]      __sys_sendmsg+0xcd/0x170
[ 6686.225158][   T73]      do_syscall_64+0xc6/0x1e0
[ 6686.225158][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6686.225158][   T73] 
[ 6686.227170][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6686.227170][   T73]      netdev_get_by_index+0x5e/0x80
[ 6686.227170][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6686.227170][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6686.227170][   T73]      ip6_route_add+0x1c/0x140
[ 6686.227170][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6686.227170][   T73]      addrconf_add_dev+0xe2/0x170
[ 6686.227170][   T73]      inet6_addr_add+0x12f/0xa40
[ 6686.227170][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6686.227170][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6686.227170][   T73]      netlink_rcv_skb+0x130/0x360
[ 6686.227170][   T73]      netlink_unicast+0x449/0x710
[ 6686.227170][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6686.227170][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6686.227170][   T73]      ___sys_sendmsg+0xee/0x170
[ 6686.227170][   T73]      __sys_sendmsg+0xcd/0x170
[ 6686.227170][   T73]      do_syscall_64+0xc6/0x1e0
[ 6686.227170][   T73] 
[ 6686.231115][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6686.231115][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6686.231115][   T73]      ipv6_find_idev+0x102/0x170
[ 6686.231115][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6686.231115][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6686.231115][   T73]      netlink_rcv_skb+0x130/0x360
[ 6686.231115][   T73]      netlink_unicast+0x449/0x710
[ 6686.231115][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6686.231115][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6686.231115][   T73]      ___sys_sendmsg+0xee/0x170
[ 6686.231115][   T73]      __sys_sendmsg+0xcd/0x170
[ 6686.231115][   T73]      do_syscall_64+0xc6/0x1e0
[ 6686.231115][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6686.231115][   T73] 
[ 6686.232656][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6686.232656][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6686.232656][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6686.232656][   T73]      ipv6_find_idev+0x102/0x170
[ 6686.232656][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6686.232656][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6686.232656][   T73]      netlink_rcv_skb+0x130/0x360
[ 6686.232656][   T73]      netlink_unicast+0x449/0x710
[ 6686.232656][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6686.232656][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6686.232656][   T73]      ___sys_sendmsg+0xee/0x170
[ 6686.232656][   T73]      __sys_sendmsg+0xcd/0x170
[ 6686.232656][   T73]      do_syscall_64+0xc6/0x1e0
[ 6686.232656][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6686.232656][   T73] 
[ 6686.234339][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6686.234605][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6686.234605][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6686.234605][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6686.234605][   T73]      fib6_nh_init+0xa22/0x1580
[ 6686.234605][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6686.234605][   T73]      ip6_route_add+0x1c/0x140
[ 6686.234605][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6686.234605][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6686.234605][   T73]      netlink_rcv_skb+0x130/0x360
[ 6686.234605][   T73]      netlink_unicast+0x449/0x710
[ 6686.234605][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6686.234605][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6686.234605][   T73]      ___sys_sendmsg+0xee/0x170
[ 6686.234605][   T73]      __sys_sendmsg+0xcd/0x170
[ 6686.234605][   T73]      do_syscall_64+0xc6/0x1e0
[ 6686.234605][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6686.234605][   T73] 
[ 6686.236685][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6686.236685][   T73]      dst_init+0x84/0x4a0
[ 6686.236685][   T73]      dst_alloc+0x97/0x150
[ 6686.236685][   T73]      ip6_dst_alloc+0x23/0x90
[ 6686.236685][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6686.236685][   T73]      ip6_pol_route+0x56f/0x840
[ 6686.236685][   T73]      fib6_rule_lookup+0x456/0x630
[ 6686.236685][   T73]      ip6_route_input+0x59c/0xa50
[ 6686.236685][   T73]      ipv6_rcv+0x397/0x810
[ 6686.236685][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6686.236685][   T73]      process_backlog+0x101/0x620
[ 6686.236685][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6686.236685][   T73]      net_rx_action+0x495/0xbe0
[ 6686.236685][   T73]      __do_softirq+0x1b5/0x7f6
[ 6686.236685][   T73] 
[ 6686.238514][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6686.238514][   T73]      netdev_get_by_index+0x5e/0x80
[ 6686.238514][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6686.238514][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6686.238514][   T73]      ip6_route_add+0x1c/0x140
[ 6686.238514][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6686.238514][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6686.238514][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6686.238514][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6686.238514][   T73]      netlink_rcv_skb+0x130/0x360
[ 6686.238514][   T73]      netlink_unicast+0x449/0x710
[ 6686.238514][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6686.238514][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6686.238514][   T73]      ___sys_sendmsg+0xee/0x170
[ 6686.238514][   T73]      __sys_sendmsg+0xcd/0x170
[ 6686.238514][   T73]      do_syscall_64+0xc6/0x1e0
[ 6686.238514][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6686.238514][   T73] 
[ 6686.240770][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6686.240770][   T73]      netdev_get_by_index+0x5e/0x80
[ 6686.240770][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6686.240770][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6686.240770][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6686.240770][   T73]      ipv6_add_addr+0x411/0x2000
[ 6686.240770][   T73]      inet6_addr_add+0x30e/0xa40
[ 6686.240770][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6686.240770][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6686.240770][   T73]      netlink_rcv_skb+0x130/0x360
[ 6686.240770][   T73]      netlink_unicast+0x449/0x710
[ 6686.240770][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6686.240770][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6686.240770][   T73]      ___sys_sendmsg+0xee/0x170
[ 6686.240770][   T73]      __sys_sendmsg+0xcd/0x170
[ 6686.240770][   T73]      do_syscall_64+0xc6/0x1e0
[ 6686.240770][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6686.240770][   T73] 
[ 6686.243085][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6686.243085][   T73]      netdev_get_by_index+0x5e/0x80
[ 6686.243085][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6686.243085][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6686.243085][   T73]      ip6_route_add+0x1c/0x140
[ 6686.243085][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6686.243085][   T73]      addrconf_add_dev+0xe2/0x170
[ 6686.243085][   T73]      inet6_addr_add+0x12f/0xa40
[ 6686.243085][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6686.243085][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6686.243085][   T73]      netlink_rcv_skb+0x130/0x360
[ 6686.243085][   T73]      netlink_unicast+0x449/0x710
[ 6686.243085][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6686.243085][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6686.243085][   T73]      ___sys_sendmsg+0xee/0x170
[ 6686.243085][   T73]      __sys_sendmsg+0xcd/0x170
[ 6686.243085][   T73]      do_syscall_64+0xc6/0x1e0
[ 6686.243085][   T73] 
[ 6686.245183][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6686.245183][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6686.245183][   T73]      ipv6_find_idev+0x102/0x170
[ 6686.245183][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6686.245183][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6686.245183][   T73]      netlink_rcv_skb+0x130/0x360
[ 6686.245183][   T73]      netlink_unicast+0x449/0x710
[ 6686.245183][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6686.245183][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6686.245183][   T73]      ___sys_sendmsg+0xee/0x170
[ 6686.245183][   T73]      __sys_sendmsg+0xcd/0x170
[ 6686.245183][   T73]      do_syscall_64+0xc6/0x1e0
[ 6686.245183][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6686.245183][   T73] 
[ 6686.246909][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6686.246909][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6686.246909][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6686.246909][   T73]      ipv6_find_idev+0x102/0x170
[ 6686.246909][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6686.246909][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6686.246909][   T73]      netlink_rcv_skb+0x130/0x360
[ 6686.246909][   T73]      netlink_unicast+0x449/0x710
[ 6686.246909][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6686.246909][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6686.246909][   T73]      ___sys_sendmsg+0xee/0x170
[ 6686.246909][   T73]      __sys_sendmsg+0xcd/0x170
[ 6686.246909][   T73]      do_syscall_64+0xc6/0x1e0
[ 6686.246909][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6686.246909][   T73] 
[ 6686.248835][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6686.249102][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6686.249102][   T73]      netdev_get_by_index+0x5e/0x80
[ 6686.249102][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6686.249102][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6686.249102][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6686.249102][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6686.249102][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6686.249102][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6686.249102][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6686.249102][   T73]      addrconf_dad_begin+0x310/0x670
[ 6686.249102][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6686.249102][   T73]      process_one_work+0x84d/0x18a0
[ 6686.249102][   T73]      worker_thread+0x587/0xd30
[ 6686.249102][   T73]      kthread+0x28a/0x350
[ 6686.249102][   T73]      ret_from_fork+0x31/0x70
[ 6686.249102][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6686.249102][   T73] 
[ 6686.251277][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6686.251277][   T73]      netdev_get_by_index+0x5e/0x80
[ 6686.251277][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6686.251277][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6686.251277][   T73]      ip6_route_add+0x1c/0x140
[ 6686.251277][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6686.251277][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6686.251277][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6686.251277][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6686.251277][   T73]      netlink_rcv_skb+0x130/0x360
[ 6686.251277][   T73]      netlink_unicast+0x449/0x710
[ 6686.251277][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6686.251277][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6686.251277][   T73]      ___sys_sendmsg+0xee/0x170
[ 6686.251277][   T73]      __sys_sendmsg+0xcd/0x170
[ 6686.251277][   T73]      do_syscall_64+0xc6/0x1e0
[ 6686.251277][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6686.251277][   T73] 
[ 6686.253542][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6686.253542][   T73]      netdev_get_by_index+0x5e/0x80
[ 6686.253542][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6686.253542][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6686.253542][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6686.253542][   T73]      ipv6_add_addr+0x411/0x2000
[ 6686.253542][   T73]      inet6_addr_add+0x30e/0xa40
[ 6686.253542][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6686.253542][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6686.253542][   T73]      netlink_rcv_skb+0x130/0x360
[ 6686.253542][   T73]      netlink_unicast+0x449/0x710
[ 6686.253542][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6686.253542][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6686.253542][   T73]      ___sys_sendmsg+0xee/0x170
[ 6686.253542][   T73]      __sys_sendmsg+0xcd/0x170
[ 6686.253542][   T73]      do_syscall_64+0xc6/0x1e0
[ 6686.253542][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6686.253542][   T73] 
[ 6686.255792][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6686.255792][   T73]      netdev_get_by_index+0x5e/0x80
[ 6686.255792][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6686.255792][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6686.255792][   T73]      ip6_route_add+0x1c/0x140
[ 6686.255792][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6686.255792][   T73]      addrconf_add_dev+0xe2/0x170
[ 6686.255792][   T73]      inet6_addr_add+0x12f/0xa40
[ 6686.255792][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6686.255792][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6686.255792][   T73]      netlink_rcv_skb+0x130/0x360
[ 6686.255792][   T73]      netlink_unicast+0x449/0x710
[ 6686.255792][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6686.255792][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6686.255792][   T73]      ___sys_sendmsg+0xee/0x170
[ 6686.255792][   T73]      __sys_sendmsg+0xcd/0x170
[ 6686.255792][   T73]      do_syscall_64+0xc6/0x1e0
[ 6686.255792][   T73] 
[ 6686.258001][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6686.258001][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6686.258001][   T73]      ipv6_find_idev+0x102/0x170
[ 6686.258001][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6686.258001][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6686.258001][   T73]      netlink_rcv_skb+0x130/0x360
[ 6686.258001][   T73]      netlink_unicast+0x449/0x710
[ 6686.258001][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6686.258001][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6686.258001][   T73]      ___sys_sendmsg+0xee/0x170
[ 6686.258001][   T73]      __sys_sendmsg+0xcd/0x170
[ 6686.258001][   T73]      do_syscall_64+0xc6/0x1e0
[ 6686.258001][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6686.258001][   T73] 
[ 6686.259725][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6686.259725][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6686.259725][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6686.259725][   T73]      ipv6_find_idev+0x102/0x170
[ 6686.259725][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6686.259725][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6686.259725][   T73]      netlink_rcv_skb+0x130/0x360
[ 6686.259725][   T73]      netlink_unicast+0x449/0x710
[ 6686.259725][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6686.259725][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6686.259725][   T73]      ___sys_sendmsg+0xee/0x170
[ 6686.259725][   T73]      __sys_sendmsg+0xcd/0x170
[ 6686.259725][   T73]      do_syscall_64+0xc6/0x1e0
[ 6686.259725][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6686.259725][   T73] 
[ 6696.503752][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6696.504152][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6696.504152][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6696.504152][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6696.504152][   T73]      fib6_nh_init+0xa22/0x1580
[ 6696.504152][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6696.504152][   T73]      ip6_route_add+0x1c/0x140
[ 6696.504152][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6696.504152][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6696.504152][   T73]      netlink_rcv_skb+0x130/0x360
[ 6696.504152][   T73]      netlink_unicast+0x449/0x710
[ 6696.504152][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6696.504152][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6696.504152][   T73]      ___sys_sendmsg+0xee/0x170
[ 6696.504152][   T73]      __sys_sendmsg+0xcd/0x170
[ 6696.504152][   T73]      do_syscall_64+0xc6/0x1e0
[ 6696.504152][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6696.504152][   T73] 
[ 6696.506059][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6696.506059][   T73]      dst_init+0x84/0x4a0
[ 6696.506059][   T73]      dst_alloc+0x97/0x150
[ 6696.506059][   T73]      ip6_dst_alloc+0x23/0x90
[ 6696.506059][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6696.506059][   T73]      ip6_pol_route+0x56f/0x840
[ 6696.506059][   T73]      fib6_rule_lookup+0x456/0x630
[ 6696.506059][   T73]      ip6_route_input+0x59c/0xa50
[ 6696.506059][   T73]      ipv6_rcv+0x397/0x810
[ 6696.506059][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6696.506059][   T73]      process_backlog+0x101/0x620
[ 6696.506059][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6696.506059][   T73]      net_rx_action+0x495/0xbe0
[ 6696.506059][   T73]      __do_softirq+0x1b5/0x7f6
[ 6696.506059][   T73] 
[ 6696.507704][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6696.507704][   T73]      netdev_get_by_index+0x5e/0x80
[ 6696.507704][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6696.507704][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6696.507704][   T73]      ip6_route_add+0x1c/0x140
[ 6696.507704][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6696.507704][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6696.507704][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6696.507704][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6696.507704][   T73]      netlink_rcv_skb+0x130/0x360
[ 6696.507704][   T73]      netlink_unicast+0x449/0x710
[ 6696.507704][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6696.507704][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6696.507704][   T73]      ___sys_sendmsg+0xee/0x170
[ 6696.507704][   T73]      __sys_sendmsg+0xcd/0x170
[ 6696.507704][   T73]      do_syscall_64+0xc6/0x1e0
[ 6696.507704][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6696.507704][   T73] 
[ 6696.509728][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6696.509728][   T73]      netdev_get_by_index+0x5e/0x80
[ 6696.509728][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6696.509728][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6696.509728][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6696.509728][   T73]      ipv6_add_addr+0x411/0x2000
[ 6696.509728][   T73]      inet6_addr_add+0x30e/0xa40
[ 6696.509728][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6696.509728][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6696.509728][   T73]      netlink_rcv_skb+0x130/0x360
[ 6696.509728][   T73]      netlink_unicast+0x449/0x710
[ 6696.509728][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6696.509728][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6696.509728][   T73]      ___sys_sendmsg+0xee/0x170
[ 6696.509728][   T73]      __sys_sendmsg+0xcd/0x170
[ 6696.509728][   T73]      do_syscall_64+0xc6/0x1e0
[ 6696.509728][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6696.509728][   T73] 
[ 6696.511748][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6696.511748][   T73]      netdev_get_by_index+0x5e/0x80
[ 6696.511748][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6696.511748][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6696.511748][   T73]      ip6_route_add+0x1c/0x140
[ 6696.511748][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6696.511748][   T73]      addrconf_add_dev+0xe2/0x170
[ 6696.511748][   T73]      inet6_addr_add+0x12f/0xa40
[ 6696.511748][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6696.511748][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6696.511748][   T73]      netlink_rcv_skb+0x130/0x360
[ 6696.511748][   T73]      netlink_unicast+0x449/0x710
[ 6696.511748][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6696.511748][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6696.511748][   T73]      ___sys_sendmsg+0xee/0x170
[ 6696.511748][   T73]      __sys_sendmsg+0xcd/0x170
[ 6696.511748][   T73]      do_syscall_64+0xc6/0x1e0
[ 6696.511748][   T73] 
[ 6696.513741][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6696.513741][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6696.513741][   T73]      ipv6_find_idev+0x102/0x170
[ 6696.513741][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6696.513741][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6696.513741][   T73]      netlink_rcv_skb+0x130/0x360
[ 6696.513741][   T73]      netlink_unicast+0x449/0x710
[ 6696.513741][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6696.513741][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6696.513741][   T73]      ___sys_sendmsg+0xee/0x170
[ 6696.513741][   T73]      __sys_sendmsg+0xcd/0x170
[ 6696.513741][   T73]      do_syscall_64+0xc6/0x1e0
[ 6696.513741][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6696.513741][   T73] 
[ 6696.515301][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6696.515301][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6696.515301][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6696.515301][   T73]      ipv6_find_idev+0x102/0x170
[ 6696.515301][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6696.515301][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6696.515301][   T73]      netlink_rcv_skb+0x130/0x360
[ 6696.515301][   T73]      netlink_unicast+0x449/0x710
[ 6696.515301][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6696.515301][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6696.515301][   T73]      ___sys_sendmsg+0xee/0x170
[ 6696.515301][   T73]      __sys_sendmsg+0xcd/0x170
[ 6696.515301][   T73]      do_syscall_64+0xc6/0x1e0
[ 6696.515301][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6696.515301][   T73] 
[ 6696.516995][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6696.517275][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6696.517275][   T73]      netdev_get_by_index+0x5e/0x80
[ 6696.517275][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6696.517275][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6696.517275][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6696.517275][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6696.517275][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6696.517275][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6696.517275][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6696.517275][   T73]      addrconf_dad_begin+0x310/0x670
[ 6696.517275][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6696.517275][   T73]      process_one_work+0x84d/0x18a0
[ 6696.517275][   T73]      worker_thread+0x587/0xd30
[ 6696.517275][   T73]      kthread+0x28a/0x350
[ 6696.517275][   T73]      ret_from_fork+0x31/0x70
[ 6696.517275][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6696.517275][   T73] 
[ 6696.519192][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6696.519192][   T73]      netdev_get_by_index+0x5e/0x80
[ 6696.519192][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6696.519192][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6696.519192][   T73]      ip6_route_add+0x1c/0x140
[ 6696.519192][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6696.519192][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6696.519192][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6696.519192][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6696.519192][   T73]      netlink_rcv_skb+0x130/0x360
[ 6696.519192][   T73]      netlink_unicast+0x449/0x710
[ 6696.519192][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6696.519192][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6696.519192][   T73]      ___sys_sendmsg+0xee/0x170
[ 6696.519192][   T73]      __sys_sendmsg+0xcd/0x170
[ 6696.519192][   T73]      do_syscall_64+0xc6/0x1e0
[ 6696.519192][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6696.519192][   T73] 
[ 6696.521209][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6696.521209][   T73]      netdev_get_by_index+0x5e/0x80
[ 6696.521209][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6696.521209][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6696.521209][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6696.521209][   T73]      ipv6_add_addr+0x411/0x2000
[ 6696.521209][   T73]      inet6_addr_add+0x30e/0xa40
[ 6696.521209][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6696.521209][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6696.521209][   T73]      netlink_rcv_skb+0x130/0x360
[ 6696.521209][   T73]      netlink_unicast+0x449/0x710
[ 6696.521209][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6696.521209][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6696.521209][   T73]      ___sys_sendmsg+0xee/0x170
[ 6696.521209][   T73]      __sys_sendmsg+0xcd/0x170
[ 6696.521209][   T73]      do_syscall_64+0xc6/0x1e0
[ 6696.521209][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6696.521209][   T73] 
[ 6696.523215][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6696.523215][   T73]      netdev_get_by_index+0x5e/0x80
[ 6696.523215][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6696.523215][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6696.523215][   T73]      ip6_route_add+0x1c/0x140
[ 6696.523215][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6696.523215][   T73]      addrconf_add_dev+0xe2/0x170
[ 6696.523215][   T73]      inet6_addr_add+0x12f/0xa40
[ 6696.523215][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6696.523215][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6696.523215][   T73]      netlink_rcv_skb+0x130/0x360
[ 6696.523215][   T73]      netlink_unicast+0x449/0x710
[ 6696.523215][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6696.523215][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6696.523215][   T73]      ___sys_sendmsg+0xee/0x170
[ 6696.523215][   T73]      __sys_sendmsg+0xcd/0x170
[ 6696.523215][   T73]      do_syscall_64+0xc6/0x1e0
[ 6696.523215][   T73] 
[ 6696.525200][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6696.525200][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6696.525200][   T73]      ipv6_find_idev+0x102/0x170
[ 6696.525200][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6696.525200][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6696.525200][   T73]      netlink_rcv_skb+0x130/0x360
[ 6696.525200][   T73]      netlink_unicast+0x449/0x710
[ 6696.525200][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6696.525200][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6696.525200][   T73]      ___sys_sendmsg+0xee/0x170
[ 6696.525200][   T73]      __sys_sendmsg+0xcd/0x170
[ 6696.525200][   T73]      do_syscall_64+0xc6/0x1e0
[ 6696.525200][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6696.525200][   T73] 
[ 6696.526756][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6696.526756][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6696.526756][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6696.526756][   T73]      ipv6_find_idev+0x102/0x170
[ 6696.526756][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6696.526756][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6696.526756][   T73]      netlink_rcv_skb+0x130/0x360
[ 6696.526756][   T73]      netlink_unicast+0x449/0x710
[ 6696.526756][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6696.526756][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6696.526756][   T73]      ___sys_sendmsg+0xee/0x170
[ 6696.526756][   T73]      __sys_sendmsg+0xcd/0x170
[ 6696.526756][   T73]      do_syscall_64+0xc6/0x1e0
[ 6696.526756][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6696.526756][   T73] 
[ 6696.528453][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6696.528752][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6696.528752][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6696.528752][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6696.528752][   T73]      fib6_nh_init+0xa22/0x1580
[ 6696.528752][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6696.528752][   T73]      ip6_route_add+0x1c/0x140
[ 6696.528752][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6696.528752][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6696.528752][   T73]      netlink_rcv_skb+0x130/0x360
[ 6696.528752][   T73]      netlink_unicast+0x449/0x710
[ 6696.528752][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6696.528752][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6696.528752][   T73]      ___sys_sendmsg+0xee/0x170
[ 6696.528752][   T73]      __sys_sendmsg+0xcd/0x170
[ 6696.528752][   T73]      do_syscall_64+0xc6/0x1e0
[ 6696.528752][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6696.528752][   T73] 
[ 6696.530836][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6696.530836][   T73]      dst_init+0x84/0x4a0
[ 6696.530836][   T73]      dst_alloc+0x97/0x150
[ 6696.530836][   T73]      ip6_dst_alloc+0x23/0x90
[ 6696.530836][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6696.530836][   T73]      ip6_pol_route+0x56f/0x840
[ 6696.530836][   T73]      fib6_rule_lookup+0x456/0x630
[ 6696.530836][   T73]      ip6_route_input+0x59c/0xa50
[ 6696.530836][   T73]      ipv6_rcv+0x397/0x810
[ 6696.530836][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6696.530836][   T73]      process_backlog+0x101/0x620
[ 6696.530836][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6696.530836][   T73]      net_rx_action+0x495/0xbe0
[ 6696.530836][   T73]      __do_softirq+0x1b5/0x7f6
[ 6696.530836][   T73] 
[ 6696.532734][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6696.532734][   T73]      netdev_get_by_index+0x5e/0x80
[ 6696.532734][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6696.532734][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6696.532734][   T73]      ip6_route_add+0x1c/0x140
[ 6696.532734][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6696.532734][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6696.532734][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6696.532734][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6696.532734][   T73]      netlink_rcv_skb+0x130/0x360
[ 6696.532734][   T73]      netlink_unicast+0x449/0x710
[ 6696.532734][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6696.532734][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6696.532734][   T73]      ___sys_sendmsg+0xee/0x170
[ 6696.532734][   T73]      __sys_sendmsg+0xcd/0x170
[ 6696.532734][   T73]      do_syscall_64+0xc6/0x1e0
[ 6696.532734][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6696.532734][   T73] 
[ 6696.534989][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6696.534989][   T73]      netdev_get_by_index+0x5e/0x80
[ 6696.534989][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6696.534989][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6696.534989][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6696.534989][   T73]      ipv6_add_addr+0x411/0x2000
[ 6696.534989][   T73]      inet6_addr_add+0x30e/0xa40
[ 6696.534989][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6696.534989][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6696.534989][   T73]      netlink_rcv_skb+0x130/0x360
[ 6696.534989][   T73]      netlink_unicast+0x449/0x710
[ 6696.534989][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6696.534989][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6696.534989][   T73]      ___sys_sendmsg+0xee/0x170
[ 6696.534989][   T73]      __sys_sendmsg+0xcd/0x170
[ 6696.534989][   T73]      do_syscall_64+0xc6/0x1e0
[ 6696.534989][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6696.534989][   T73] 
[ 6696.537231][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6696.537231][   T73]      netdev_get_by_index+0x5e/0x80
[ 6696.537231][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6696.537231][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6696.537231][   T73]      ip6_route_add+0x1c/0x140
[ 6696.537231][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6696.537231][   T73]      addrconf_add_dev+0xe2/0x170
[ 6696.537231][   T73]      inet6_addr_add+0x12f/0xa40
[ 6696.537231][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6696.537231][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6696.537231][   T73]      netlink_rcv_skb+0x130/0x360
[ 6696.537231][   T73]      netlink_unicast+0x449/0x710
[ 6696.537231][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6696.537231][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6696.537231][   T73]      ___sys_sendmsg+0xee/0x170
[ 6696.537231][   T73]      __sys_sendmsg+0xcd/0x170
[ 6696.537231][   T73]      do_syscall_64+0xc6/0x1e0
[ 6696.537231][   T73] 
[ 6696.539378][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6696.539378][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6696.539378][   T73]      ipv6_find_idev+0x102/0x170
[ 6696.539378][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6696.539378][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6696.539378][   T73]      netlink_rcv_skb+0x130/0x360
[ 6696.539378][   T73]      netlink_unicast+0x449/0x710
[ 6696.539378][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6696.539378][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6696.539378][   T73]      ___sys_sendmsg+0xee/0x170
[ 6696.539378][   T73]      __sys_sendmsg+0xcd/0x170
[ 6696.539378][   T73]      do_syscall_64+0xc6/0x1e0
[ 6696.539378][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6696.539378][   T73] 
[ 6696.541168][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6696.541168][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6696.541168][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6696.541168][   T73]      ipv6_find_idev+0x102/0x170
[ 6696.541168][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6696.541168][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6696.541168][   T73]      netlink_rcv_skb+0x130/0x360
[ 6696.541168][   T73]      netlink_unicast+0x449/0x710
[ 6696.541168][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6696.541168][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6696.541168][   T73]      ___sys_sendmsg+0xee/0x170
[ 6696.541168][   T73]      __sys_sendmsg+0xcd/0x170
[ 6696.541168][   T73]      do_syscall_64+0xc6/0x1e0
[ 6696.541168][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6696.541168][   T73] 
[ 6696.543095][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6696.543365][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6696.543365][   T73]      netdev_get_by_index+0x5e/0x80
[ 6696.543365][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6696.543365][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6696.543365][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6696.543365][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6696.543365][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6696.543365][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6696.543365][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6696.543365][   T73]      addrconf_dad_begin+0x310/0x670
[ 6696.543365][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6696.543365][   T73]      process_one_work+0x84d/0x18a0
[ 6696.543365][   T73]      worker_thread+0x587/0xd30
[ 6696.543365][   T73]      kthread+0x28a/0x350
[ 6696.543365][   T73]      ret_from_fork+0x31/0x70
[ 6696.543365][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6696.543365][   T73] 
[ 6696.545549][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6696.545549][   T73]      netdev_get_by_index+0x5e/0x80
[ 6696.545549][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6696.545549][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6696.545549][   T73]      ip6_route_add+0x1c/0x140
[ 6696.545549][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6696.545549][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6696.545549][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6696.545549][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6696.545549][   T73]      netlink_rcv_skb+0x130/0x360
[ 6696.545549][   T73]      netlink_unicast+0x449/0x710
[ 6696.545549][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6696.545549][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6696.545549][   T73]      ___sys_sendmsg+0xee/0x170
[ 6696.545549][   T73]      __sys_sendmsg+0xcd/0x170
[ 6696.545549][   T73]      do_syscall_64+0xc6/0x1e0
[ 6696.545549][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6696.545549][   T73] 
[ 6696.547740][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6696.547740][   T73]      netdev_get_by_index+0x5e/0x80
[ 6696.547740][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6696.547740][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6696.547740][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6696.547740][   T73]      ipv6_add_addr+0x411/0x2000
[ 6696.547740][   T73]      inet6_addr_add+0x30e/0xa40
[ 6696.547740][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6696.547740][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6696.547740][   T73]      netlink_rcv_skb+0x130/0x360
[ 6696.547740][   T73]      netlink_unicast+0x449/0x710
[ 6696.547740][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6696.547740][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6696.547740][   T73]      ___sys_sendmsg+0xee/0x170
[ 6696.547740][   T73]      __sys_sendmsg+0xcd/0x170
[ 6696.547740][   T73]      do_syscall_64+0xc6/0x1e0
[ 6696.547740][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6696.547740][   T73] 
[ 6696.549992][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6696.549992][   T73]      netdev_get_by_index+0x5e/0x80
[ 6696.549992][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6696.549992][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6696.549992][   T73]      ip6_route_add+0x1c/0x140
[ 6696.549992][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6696.549992][   T73]      addrconf_add_dev+0xe2/0x170
[ 6696.549992][   T73]      inet6_addr_add+0x12f/0xa40
[ 6696.549992][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6696.549992][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6696.549992][   T73]      netlink_rcv_skb+0x130/0x360
[ 6696.549992][   T73]      netlink_unicast+0x449/0x710
[ 6696.549992][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6696.549992][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6696.549992][   T73]      ___sys_sendmsg+0xee/0x170
[ 6696.549992][   T73]      __sys_sendmsg+0xcd/0x170
[ 6696.549992][   T73]      do_syscall_64+0xc6/0x1e0
[ 6696.549992][   T73] 
[ 6696.552265][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6696.552265][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6696.552265][   T73]      ipv6_find_idev+0x102/0x170
[ 6696.552265][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6696.552265][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6696.552265][   T73]      netlink_rcv_skb+0x130/0x360
[ 6696.552265][   T73]      netlink_unicast+0x449/0x710
[ 6696.552265][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6696.552265][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6696.552265][   T73]      ___sys_sendmsg+0xee/0x170
[ 6696.552265][   T73]      __sys_sendmsg+0xcd/0x170
[ 6696.552265][   T73]      do_syscall_64+0xc6/0x1e0
[ 6696.552265][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6696.552265][   T73] 
[ 6696.553995][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6696.553995][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6696.553995][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6696.553995][   T73]      ipv6_find_idev+0x102/0x170
[ 6696.553995][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6696.553995][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6696.553995][   T73]      netlink_rcv_skb+0x130/0x360
[ 6696.553995][   T73]      netlink_unicast+0x449/0x710
[ 6696.553995][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6696.553995][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6696.553995][   T73]      ___sys_sendmsg+0xee/0x170
[ 6696.553995][   T73]      __sys_sendmsg+0xcd/0x170
[ 6696.553995][   T73]      do_syscall_64+0xc6/0x1e0
[ 6696.553995][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6696.553995][   T73] 
[ 6706.615679][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6706.616082][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6706.616082][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6706.616082][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6706.616082][   T73]      fib6_nh_init+0xa22/0x1580
[ 6706.616082][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6706.616082][   T73]      ip6_route_add+0x1c/0x140
[ 6706.616082][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6706.616082][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6706.616082][   T73]      netlink_rcv_skb+0x130/0x360
[ 6706.616082][   T73]      netlink_unicast+0x449/0x710
[ 6706.616082][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6706.616082][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6706.616082][   T73]      ___sys_sendmsg+0xee/0x170
[ 6706.616082][   T73]      __sys_sendmsg+0xcd/0x170
[ 6706.616082][   T73]      do_syscall_64+0xc6/0x1e0
[ 6706.616082][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6706.616082][   T73] 
[ 6706.618015][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6706.618015][   T73]      dst_init+0x84/0x4a0
[ 6706.618015][   T73]      dst_alloc+0x97/0x150
[ 6706.618015][   T73]      ip6_dst_alloc+0x23/0x90
[ 6706.618015][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6706.618015][   T73]      ip6_pol_route+0x56f/0x840
[ 6706.618015][   T73]      fib6_rule_lookup+0x456/0x630
[ 6706.618015][   T73]      ip6_route_input+0x59c/0xa50
[ 6706.618015][   T73]      ipv6_rcv+0x397/0x810
[ 6706.618015][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6706.618015][   T73]      process_backlog+0x101/0x620
[ 6706.618015][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6706.618015][   T73]      net_rx_action+0x495/0xbe0
[ 6706.618015][   T73]      __do_softirq+0x1b5/0x7f6
[ 6706.618015][   T73] 
[ 6706.619693][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6706.619693][   T73]      netdev_get_by_index+0x5e/0x80
[ 6706.619693][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6706.619693][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6706.619693][   T73]      ip6_route_add+0x1c/0x140
[ 6706.619693][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6706.619693][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6706.619693][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6706.619693][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6706.619693][   T73]      netlink_rcv_skb+0x130/0x360
[ 6706.619693][   T73]      netlink_unicast+0x449/0x710
[ 6706.619693][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6706.619693][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6706.619693][   T73]      ___sys_sendmsg+0xee/0x170
[ 6706.619693][   T73]      __sys_sendmsg+0xcd/0x170
[ 6706.619693][   T73]      do_syscall_64+0xc6/0x1e0
[ 6706.619693][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6706.619693][   T73] 
[ 6706.621714][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6706.621714][   T73]      netdev_get_by_index+0x5e/0x80
[ 6706.621714][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6706.621714][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6706.621714][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6706.621714][   T73]      ipv6_add_addr+0x411/0x2000
[ 6706.621714][   T73]      inet6_addr_add+0x30e/0xa40
[ 6706.621714][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6706.621714][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6706.621714][   T73]      netlink_rcv_skb+0x130/0x360
[ 6706.621714][   T73]      netlink_unicast+0x449/0x710
[ 6706.621714][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6706.621714][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6706.621714][   T73]      ___sys_sendmsg+0xee/0x170
[ 6706.621714][   T73]      __sys_sendmsg+0xcd/0x170
[ 6706.621714][   T73]      do_syscall_64+0xc6/0x1e0
[ 6706.621714][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6706.621714][   T73] 
[ 6706.623751][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6706.623751][   T73]      netdev_get_by_index+0x5e/0x80
[ 6706.623751][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6706.623751][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6706.623751][   T73]      ip6_route_add+0x1c/0x140
[ 6706.623751][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6706.623751][   T73]      addrconf_add_dev+0xe2/0x170
[ 6706.623751][   T73]      inet6_addr_add+0x12f/0xa40
[ 6706.623751][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6706.623751][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6706.623751][   T73]      netlink_rcv_skb+0x130/0x360
[ 6706.623751][   T73]      netlink_unicast+0x449/0x710
[ 6706.623751][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6706.623751][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6706.623751][   T73]      ___sys_sendmsg+0xee/0x170
[ 6706.623751][   T73]      __sys_sendmsg+0xcd/0x170
[ 6706.623751][   T73]      do_syscall_64+0xc6/0x1e0
[ 6706.623751][   T73] 
[ 6706.625760][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6706.625760][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6706.625760][   T73]      ipv6_find_idev+0x102/0x170
[ 6706.625760][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6706.625760][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6706.625760][   T73]      netlink_rcv_skb+0x130/0x360
[ 6706.625760][   T73]      netlink_unicast+0x449/0x710
[ 6706.625760][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6706.625760][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6706.625760][   T73]      ___sys_sendmsg+0xee/0x170
[ 6706.625760][   T73]      __sys_sendmsg+0xcd/0x170
[ 6706.625760][   T73]      do_syscall_64+0xc6/0x1e0
[ 6706.625760][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6706.625760][   T73] 
[ 6706.627331][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6706.627331][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6706.627331][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6706.627331][   T73]      ipv6_find_idev+0x102/0x170
[ 6706.627331][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6706.627331][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6706.627331][   T73]      netlink_rcv_skb+0x130/0x360
[ 6706.627331][   T73]      netlink_unicast+0x449/0x710
[ 6706.627331][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6706.627331][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6706.627331][   T73]      ___sys_sendmsg+0xee/0x170
[ 6706.627331][   T73]      __sys_sendmsg+0xcd/0x170
[ 6706.627331][   T73]      do_syscall_64+0xc6/0x1e0
[ 6706.627331][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6706.627331][   T73] 
[ 6706.629034][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6706.629341][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6706.629341][   T73]      netdev_get_by_index+0x5e/0x80
[ 6706.629341][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6706.629341][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6706.629341][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6706.629341][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6706.629341][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6706.629341][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6706.629341][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6706.629341][   T73]      addrconf_dad_begin+0x310/0x670
[ 6706.629341][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6706.629341][   T73]      process_one_work+0x84d/0x18a0
[ 6706.629341][   T73]      worker_thread+0x587/0xd30
[ 6706.629341][   T73]      kthread+0x28a/0x350
[ 6706.629341][   T73]      ret_from_fork+0x31/0x70
[ 6706.629341][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6706.629341][   T73] 
[ 6706.631271][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6706.631271][   T73]      netdev_get_by_index+0x5e/0x80
[ 6706.631271][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6706.631271][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6706.631271][   T73]      ip6_route_add+0x1c/0x140
[ 6706.631271][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6706.631271][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6706.631271][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6706.631271][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6706.631271][   T73]      netlink_rcv_skb+0x130/0x360
[ 6706.631271][   T73]      netlink_unicast+0x449/0x710
[ 6706.631271][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6706.631271][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6706.631271][   T73]      ___sys_sendmsg+0xee/0x170
[ 6706.631271][   T73]      __sys_sendmsg+0xcd/0x170
[ 6706.631271][   T73]      do_syscall_64+0xc6/0x1e0
[ 6706.631271][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6706.631271][   T73] 
[ 6706.633309][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6706.633309][   T73]      netdev_get_by_index+0x5e/0x80
[ 6706.633309][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6706.633309][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6706.633309][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6706.633309][   T73]      ipv6_add_addr+0x411/0x2000
[ 6706.633309][   T73]      inet6_addr_add+0x30e/0xa40
[ 6706.633309][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6706.633309][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6706.633309][   T73]      netlink_rcv_skb+0x130/0x360
[ 6706.633309][   T73]      netlink_unicast+0x449/0x710
[ 6706.633309][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6706.633309][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6706.633309][   T73]      ___sys_sendmsg+0xee/0x170
[ 6706.633309][   T73]      __sys_sendmsg+0xcd/0x170
[ 6706.633309][   T73]      do_syscall_64+0xc6/0x1e0
[ 6706.633309][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6706.633309][   T73] 
[ 6706.635334][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6706.635334][   T73]      netdev_get_by_index+0x5e/0x80
[ 6706.635334][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6706.635334][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6706.635334][   T73]      ip6_route_add+0x1c/0x140
[ 6706.635334][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6706.635334][   T73]      addrconf_add_dev+0xe2/0x170
[ 6706.635334][   T73]      inet6_addr_add+0x12f/0xa40
[ 6706.635334][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6706.635334][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6706.635334][   T73]      netlink_rcv_skb+0x130/0x360
[ 6706.635334][   T73]      netlink_unicast+0x449/0x710
[ 6706.635334][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6706.635334][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6706.635334][   T73]      ___sys_sendmsg+0xee/0x170
[ 6706.635334][   T73]      __sys_sendmsg+0xcd/0x170
[ 6706.635334][   T73]      do_syscall_64+0xc6/0x1e0
[ 6706.635334][   T73] 
[ 6706.637320][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6706.637320][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6706.637320][   T73]      ipv6_find_idev+0x102/0x170
[ 6706.637320][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6706.637320][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6706.637320][   T73]      netlink_rcv_skb+0x130/0x360
[ 6706.637320][   T73]      netlink_unicast+0x449/0x710
[ 6706.637320][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6706.637320][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6706.637320][   T73]      ___sys_sendmsg+0xee/0x170
[ 6706.637320][   T73]      __sys_sendmsg+0xcd/0x170
[ 6706.637320][   T73]      do_syscall_64+0xc6/0x1e0
[ 6706.637320][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6706.637320][   T73] 
[ 6706.638867][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6706.638867][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6706.638867][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6706.638867][   T73]      ipv6_find_idev+0x102/0x170
[ 6706.638867][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6706.638867][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6706.638867][   T73]      netlink_rcv_skb+0x130/0x360
[ 6706.638867][   T73]      netlink_unicast+0x449/0x710
[ 6706.638867][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6706.638867][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6706.638867][   T73]      ___sys_sendmsg+0xee/0x170
[ 6706.638867][   T73]      __sys_sendmsg+0xcd/0x170
[ 6706.638867][   T73]      do_syscall_64+0xc6/0x1e0
[ 6706.638867][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6706.638867][   T73] 
[ 6706.640581][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6706.640861][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6706.640861][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6706.640861][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6706.640861][   T73]      fib6_nh_init+0xa22/0x1580
[ 6706.640861][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6706.640861][   T73]      ip6_route_add+0x1c/0x140
[ 6706.640861][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6706.640861][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6706.640861][   T73]      netlink_rcv_skb+0x130/0x360
[ 6706.640861][   T73]      netlink_unicast+0x449/0x710
[ 6706.640861][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6706.640861][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6706.640861][   T73]      ___sys_sendmsg+0xee/0x170
[ 6706.640861][   T73]      __sys_sendmsg+0xcd/0x170
[ 6706.640861][   T73]      do_syscall_64+0xc6/0x1e0
[ 6706.640861][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6706.640861][   T73] 
[ 6706.642859][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6706.642859][   T73]      dst_init+0x84/0x4a0
[ 6706.642859][   T73]      dst_alloc+0x97/0x150
[ 6706.642859][   T73]      ip6_dst_alloc+0x23/0x90
[ 6706.642859][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6706.642859][   T73]      ip6_pol_route+0x56f/0x840
[ 6706.642859][   T73]      fib6_rule_lookup+0x456/0x630
[ 6706.642859][   T73]      ip6_route_input+0x59c/0xa50
[ 6706.642859][   T73]      ipv6_rcv+0x397/0x810
[ 6706.642859][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6706.642859][   T73]      process_backlog+0x101/0x620
[ 6706.642859][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6706.642859][   T73]      net_rx_action+0x495/0xbe0
[ 6706.642859][   T73]      __do_softirq+0x1b5/0x7f6
[ 6706.642859][   T73] 
[ 6706.644590][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6706.644590][   T73]      netdev_get_by_index+0x5e/0x80
[ 6706.644590][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6706.644590][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6706.644590][   T73]      ip6_route_add+0x1c/0x140
[ 6706.644590][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6706.644590][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6706.644590][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6706.644590][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6706.644590][   T73]      netlink_rcv_skb+0x130/0x360
[ 6706.644590][   T73]      netlink_unicast+0x449/0x710
[ 6706.644590][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6706.644590][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6706.644590][   T73]      ___sys_sendmsg+0xee/0x170
[ 6706.644590][   T73]      __sys_sendmsg+0xcd/0x170
[ 6706.644590][   T73]      do_syscall_64+0xc6/0x1e0
[ 6706.644590][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6706.644590][   T73] 
[ 6706.646743][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6706.646743][   T73]      netdev_get_by_index+0x5e/0x80
[ 6706.646743][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6706.646743][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6706.646743][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6706.646743][   T73]      ipv6_add_addr+0x411/0x2000
[ 6706.646743][   T73]      inet6_addr_add+0x30e/0xa40
[ 6706.646743][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6706.646743][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6706.646743][   T73]      netlink_rcv_skb+0x130/0x360
[ 6706.646743][   T73]      netlink_unicast+0x449/0x710
[ 6706.646743][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6706.646743][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6706.646743][   T73]      ___sys_sendmsg+0xee/0x170
[ 6706.646743][   T73]      __sys_sendmsg+0xcd/0x170
[ 6706.646743][   T73]      do_syscall_64+0xc6/0x1e0
[ 6706.646743][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6706.646743][   T73] 
[ 6706.648849][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6706.648849][   T73]      netdev_get_by_index+0x5e/0x80
[ 6706.648849][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6706.648849][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6706.648849][   T73]      ip6_route_add+0x1c/0x140
[ 6706.648849][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6706.648849][   T73]      addrconf_add_dev+0xe2/0x170
[ 6706.648849][   T73]      inet6_addr_add+0x12f/0xa40
[ 6706.648849][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6706.648849][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6706.648849][   T73]      netlink_rcv_skb+0x130/0x360
[ 6706.648849][   T73]      netlink_unicast+0x449/0x710
[ 6706.648849][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6706.648849][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6706.648849][   T73]      ___sys_sendmsg+0xee/0x170
[ 6706.648849][   T73]      __sys_sendmsg+0xcd/0x170
[ 6706.648849][   T73]      do_syscall_64+0xc6/0x1e0
[ 6706.648849][   T73] 
[ 6706.650900][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6706.650900][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6706.650900][   T73]      ipv6_find_idev+0x102/0x170
[ 6706.650900][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6706.650900][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6706.650900][   T73]      netlink_rcv_skb+0x130/0x360
[ 6706.650900][   T73]      netlink_unicast+0x449/0x710
[ 6706.650900][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6706.650900][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6706.650900][   T73]      ___sys_sendmsg+0xee/0x170
[ 6706.650900][   T73]      __sys_sendmsg+0xcd/0x170
[ 6706.650900][   T73]      do_syscall_64+0xc6/0x1e0
[ 6706.650900][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6706.650900][   T73] 
[ 6706.652526][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6706.652526][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6706.652526][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6706.652526][   T73]      ipv6_find_idev+0x102/0x170
[ 6706.652526][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6706.652526][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6706.652526][   T73]      netlink_rcv_skb+0x130/0x360
[ 6706.652526][   T73]      netlink_unicast+0x449/0x710
[ 6706.652526][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6706.652526][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6706.652526][   T73]      ___sys_sendmsg+0xee/0x170
[ 6706.652526][   T73]      __sys_sendmsg+0xcd/0x170
[ 6706.652526][   T73]      do_syscall_64+0xc6/0x1e0
[ 6706.652526][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6706.652526][   T73] 
[ 6706.654305][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6706.654583][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6706.654583][   T73]      netdev_get_by_index+0x5e/0x80
[ 6706.654583][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6706.654583][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6706.654583][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6706.654583][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6706.654583][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6706.654583][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6706.654583][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6706.654583][   T73]      addrconf_dad_begin+0x310/0x670
[ 6706.654583][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6706.654583][   T73]      process_one_work+0x84d/0x18a0
[ 6706.654583][   T73]      worker_thread+0x587/0xd30
[ 6706.654583][   T73]      kthread+0x28a/0x350
[ 6706.654583][   T73]      ret_from_fork+0x31/0x70
[ 6706.654583][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6706.654583][   T73] 
[ 6706.656658][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6706.656658][   T73]      netdev_get_by_index+0x5e/0x80
[ 6706.656658][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6706.656658][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6706.656658][   T73]      ip6_route_add+0x1c/0x140
[ 6706.656658][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6706.656658][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6706.656658][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6706.656658][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6706.656658][   T73]      netlink_rcv_skb+0x130/0x360
[ 6706.656658][   T73]      netlink_unicast+0x449/0x710
[ 6706.656658][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6706.656658][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6706.656658][   T73]      ___sys_sendmsg+0xee/0x170
[ 6706.656658][   T73]      __sys_sendmsg+0xcd/0x170
[ 6706.656658][   T73]      do_syscall_64+0xc6/0x1e0
[ 6706.656658][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6706.656658][   T73] 
[ 6706.658750][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6706.658750][   T73]      netdev_get_by_index+0x5e/0x80
[ 6706.658750][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6706.658750][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6706.658750][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6706.658750][   T73]      ipv6_add_addr+0x411/0x2000
[ 6706.658750][   T73]      inet6_addr_add+0x30e/0xa40
[ 6706.658750][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6706.658750][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6706.658750][   T73]      netlink_rcv_skb+0x130/0x360
[ 6706.658750][   T73]      netlink_unicast+0x449/0x710
[ 6706.658750][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6706.658750][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6706.658750][   T73]      ___sys_sendmsg+0xee/0x170
[ 6706.658750][   T73]      __sys_sendmsg+0xcd/0x170
[ 6706.658750][   T73]      do_syscall_64+0xc6/0x1e0
[ 6706.658750][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6706.658750][   T73] 
[ 6706.660831][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6706.660831][   T73]      netdev_get_by_index+0x5e/0x80
[ 6706.660831][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6706.660831][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6706.660831][   T73]      ip6_route_add+0x1c/0x140
[ 6706.660831][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6706.660831][   T73]      addrconf_add_dev+0xe2/0x170
[ 6706.660831][   T73]      inet6_addr_add+0x12f/0xa40
[ 6706.660831][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6706.660831][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6706.660831][   T73]      netlink_rcv_skb+0x130/0x360
[ 6706.660831][   T73]      netlink_unicast+0x449/0x710
[ 6706.660831][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6706.660831][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6706.660831][   T73]      ___sys_sendmsg+0xee/0x170
[ 6706.660831][   T73]      __sys_sendmsg+0xcd/0x170
[ 6706.660831][   T73]      do_syscall_64+0xc6/0x1e0
[ 6706.660831][   T73] 
[ 6706.662957][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6706.662957][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6706.662957][   T73]      ipv6_find_idev+0x102/0x170
[ 6706.662957][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6706.662957][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6706.662957][   T73]      netlink_rcv_skb+0x130/0x360
[ 6706.662957][   T73]      netlink_unicast+0x449/0x710
[ 6706.662957][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6706.662957][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6706.662957][   T73]      ___sys_sendmsg+0xee/0x170
[ 6706.662957][   T73]      __sys_sendmsg+0xcd/0x170
[ 6706.662957][   T73]      do_syscall_64+0xc6/0x1e0
[ 6706.662957][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6706.662957][   T73] 
[ 6706.664589][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6706.664589][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6706.664589][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6706.664589][   T73]      ipv6_find_idev+0x102/0x170
[ 6706.664589][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6706.664589][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6706.664589][   T73]      netlink_rcv_skb+0x130/0x360
[ 6706.664589][   T73]      netlink_unicast+0x449/0x710
[ 6706.664589][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6706.664589][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6706.664589][   T73]      ___sys_sendmsg+0xee/0x170
[ 6706.664589][   T73]      __sys_sendmsg+0xcd/0x170
[ 6706.664589][   T73]      do_syscall_64+0xc6/0x1e0
[ 6706.664589][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6706.664589][   T73] 
[ 6716.919677][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6716.920064][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6716.920064][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6716.920064][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6716.920064][   T73]      fib6_nh_init+0xa22/0x1580
[ 6716.920064][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6716.920064][   T73]      ip6_route_add+0x1c/0x140
[ 6716.920064][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6716.920064][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6716.920064][   T73]      netlink_rcv_skb+0x130/0x360
[ 6716.920064][   T73]      netlink_unicast+0x449/0x710
[ 6716.920064][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6716.920064][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6716.920064][   T73]      ___sys_sendmsg+0xee/0x170
[ 6716.920064][   T73]      __sys_sendmsg+0xcd/0x170
[ 6716.920064][   T73]      do_syscall_64+0xc6/0x1e0
[ 6716.920064][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6716.920064][   T73] 
[ 6716.921972][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6716.921972][   T73]      dst_init+0x84/0x4a0
[ 6716.921972][   T73]      dst_alloc+0x97/0x150
[ 6716.921972][   T73]      ip6_dst_alloc+0x23/0x90
[ 6716.921972][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6716.921972][   T73]      ip6_pol_route+0x56f/0x840
[ 6716.921972][   T73]      fib6_rule_lookup+0x456/0x630
[ 6716.921972][   T73]      ip6_route_input+0x59c/0xa50
[ 6716.921972][   T73]      ipv6_rcv+0x397/0x810
[ 6716.921972][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6716.921972][   T73]      process_backlog+0x101/0x620
[ 6716.921972][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6716.921972][   T73]      net_rx_action+0x495/0xbe0
[ 6716.921972][   T73]      __do_softirq+0x1b5/0x7f6
[ 6716.921972][   T73] 
[ 6716.923644][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6716.923644][   T73]      netdev_get_by_index+0x5e/0x80
[ 6716.923644][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6716.923644][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6716.923644][   T73]      ip6_route_add+0x1c/0x140
[ 6716.923644][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6716.923644][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6716.923644][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6716.923644][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6716.923644][   T73]      netlink_rcv_skb+0x130/0x360
[ 6716.923644][   T73]      netlink_unicast+0x449/0x710
[ 6716.923644][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6716.923644][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6716.923644][   T73]      ___sys_sendmsg+0xee/0x170
[ 6716.923644][   T73]      __sys_sendmsg+0xcd/0x170
[ 6716.923644][   T73]      do_syscall_64+0xc6/0x1e0
[ 6716.923644][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6716.923644][   T73] 
[ 6716.925657][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6716.925657][   T73]      netdev_get_by_index+0x5e/0x80
[ 6716.925657][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6716.925657][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6716.925657][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6716.925657][   T73]      ipv6_add_addr+0x411/0x2000
[ 6716.925657][   T73]      inet6_addr_add+0x30e/0xa40
[ 6716.925657][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6716.925657][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6716.925657][   T73]      netlink_rcv_skb+0x130/0x360
[ 6716.925657][   T73]      netlink_unicast+0x449/0x710
[ 6716.925657][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6716.925657][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6716.925657][   T73]      ___sys_sendmsg+0xee/0x170
[ 6716.925657][   T73]      __sys_sendmsg+0xcd/0x170
[ 6716.925657][   T73]      do_syscall_64+0xc6/0x1e0
[ 6716.925657][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6716.925657][   T73] 
[ 6716.927667][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6716.927667][   T73]      netdev_get_by_index+0x5e/0x80
[ 6716.927667][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6716.927667][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6716.927667][   T73]      ip6_route_add+0x1c/0x140
[ 6716.927667][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6716.927667][   T73]      addrconf_add_dev+0xe2/0x170
[ 6716.927667][   T73]      inet6_addr_add+0x12f/0xa40
[ 6716.927667][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6716.927667][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6716.927667][   T73]      netlink_rcv_skb+0x130/0x360
[ 6716.927667][   T73]      netlink_unicast+0x449/0x710
[ 6716.927667][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6716.927667][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6716.927667][   T73]      ___sys_sendmsg+0xee/0x170
[ 6716.927667][   T73]      __sys_sendmsg+0xcd/0x170
[ 6716.927667][   T73]      do_syscall_64+0xc6/0x1e0
[ 6716.927667][   T73] 
[ 6716.929650][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6716.929650][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6716.929650][   T73]      ipv6_find_idev+0x102/0x170
[ 6716.929650][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6716.929650][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6716.929650][   T73]      netlink_rcv_skb+0x130/0x360
[ 6716.929650][   T73]      netlink_unicast+0x449/0x710
[ 6716.929650][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6716.929650][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6716.929650][   T73]      ___sys_sendmsg+0xee/0x170
[ 6716.929650][   T73]      __sys_sendmsg+0xcd/0x170
[ 6716.929650][   T73]      do_syscall_64+0xc6/0x1e0
[ 6716.929650][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6716.929650][   T73] 
[ 6716.931206][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6716.931206][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6716.931206][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6716.931206][   T73]      ipv6_find_idev+0x102/0x170
[ 6716.931206][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6716.931206][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6716.931206][   T73]      netlink_rcv_skb+0x130/0x360
[ 6716.931206][   T73]      netlink_unicast+0x449/0x710
[ 6716.931206][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6716.931206][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6716.931206][   T73]      ___sys_sendmsg+0xee/0x170
[ 6716.931206][   T73]      __sys_sendmsg+0xcd/0x170
[ 6716.931206][   T73]      do_syscall_64+0xc6/0x1e0
[ 6716.931206][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6716.931206][   T73] 
[ 6716.932914][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6716.933197][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6716.933197][   T73]      netdev_get_by_index+0x5e/0x80
[ 6716.933197][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6716.933197][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6716.933197][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6716.933197][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6716.933197][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6716.933197][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6716.933197][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6716.933197][   T73]      addrconf_dad_begin+0x310/0x670
[ 6716.933197][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6716.933197][   T73]      process_one_work+0x84d/0x18a0
[ 6716.933197][   T73]      worker_thread+0x587/0xd30
[ 6716.933197][   T73]      kthread+0x28a/0x350
[ 6716.933197][   T73]      ret_from_fork+0x31/0x70
[ 6716.933197][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6716.933197][   T73] 
[ 6716.935145][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6716.935145][   T73]      netdev_get_by_index+0x5e/0x80
[ 6716.935145][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6716.935145][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6716.935145][   T73]      ip6_route_add+0x1c/0x140
[ 6716.935145][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6716.935145][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6716.935145][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6716.935145][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6716.935145][   T73]      netlink_rcv_skb+0x130/0x360
[ 6716.935145][   T73]      netlink_unicast+0x449/0x710
[ 6716.935145][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6716.935145][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6716.935145][   T73]      ___sys_sendmsg+0xee/0x170
[ 6716.935145][   T73]      __sys_sendmsg+0xcd/0x170
[ 6716.935145][   T73]      do_syscall_64+0xc6/0x1e0
[ 6716.935145][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6716.935145][   T73] 
[ 6716.937193][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6716.937193][   T73]      netdev_get_by_index+0x5e/0x80
[ 6716.937193][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6716.937193][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6716.937193][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6716.937193][   T73]      ipv6_add_addr+0x411/0x2000
[ 6716.937193][   T73]      inet6_addr_add+0x30e/0xa40
[ 6716.937193][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6716.937193][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6716.937193][   T73]      netlink_rcv_skb+0x130/0x360
[ 6716.937193][   T73]      netlink_unicast+0x449/0x710
[ 6716.937193][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6716.937193][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6716.937193][   T73]      ___sys_sendmsg+0xee/0x170
[ 6716.937193][   T73]      __sys_sendmsg+0xcd/0x170
[ 6716.937193][   T73]      do_syscall_64+0xc6/0x1e0
[ 6716.937193][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6716.937193][   T73] 
[ 6716.939209][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6716.939209][   T73]      netdev_get_by_index+0x5e/0x80
[ 6716.939209][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6716.939209][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6716.939209][   T73]      ip6_route_add+0x1c/0x140
[ 6716.939209][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6716.939209][   T73]      addrconf_add_dev+0xe2/0x170
[ 6716.939209][   T73]      inet6_addr_add+0x12f/0xa40
[ 6716.939209][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6716.939209][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6716.939209][   T73]      netlink_rcv_skb+0x130/0x360
[ 6716.939209][   T73]      netlink_unicast+0x449/0x710
[ 6716.939209][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6716.939209][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6716.939209][   T73]      ___sys_sendmsg+0xee/0x170
[ 6716.939209][   T73]      __sys_sendmsg+0xcd/0x170
[ 6716.939209][   T73]      do_syscall_64+0xc6/0x1e0
[ 6716.939209][   T73] 
[ 6716.941179][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6716.941179][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6716.941179][   T73]      ipv6_find_idev+0x102/0x170
[ 6716.941179][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6716.941179][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6716.941179][   T73]      netlink_rcv_skb+0x130/0x360
[ 6716.941179][   T73]      netlink_unicast+0x449/0x710
[ 6716.941179][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6716.941179][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6716.941179][   T73]      ___sys_sendmsg+0xee/0x170
[ 6716.941179][   T73]      __sys_sendmsg+0xcd/0x170
[ 6716.941179][   T73]      do_syscall_64+0xc6/0x1e0
[ 6716.941179][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6716.941179][   T73] 
[ 6716.942727][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6716.942727][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6716.942727][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6716.942727][   T73]      ipv6_find_idev+0x102/0x170
[ 6716.942727][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6716.942727][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6716.942727][   T73]      netlink_rcv_skb+0x130/0x360
[ 6716.942727][   T73]      netlink_unicast+0x449/0x710
[ 6716.942727][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6716.942727][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6716.942727][   T73]      ___sys_sendmsg+0xee/0x170
[ 6716.942727][   T73]      __sys_sendmsg+0xcd/0x170
[ 6716.942727][   T73]      do_syscall_64+0xc6/0x1e0
[ 6716.942727][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6716.942727][   T73] 
[ 6716.944429][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6716.944712][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6716.944712][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6716.944712][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6716.944712][   T73]      fib6_nh_init+0xa22/0x1580
[ 6716.944712][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6716.944712][   T73]      ip6_route_add+0x1c/0x140
[ 6716.944712][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6716.944712][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6716.944712][   T73]      netlink_rcv_skb+0x130/0x360
[ 6716.944712][   T73]      netlink_unicast+0x449/0x710
[ 6716.944712][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6716.944712][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6716.944712][   T73]      ___sys_sendmsg+0xee/0x170
[ 6716.944712][   T73]      __sys_sendmsg+0xcd/0x170
[ 6716.944712][   T73]      do_syscall_64+0xc6/0x1e0
[ 6716.944712][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6716.944712][   T73] 
[ 6716.946726][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6716.946726][   T73]      dst_init+0x84/0x4a0
[ 6716.946726][   T73]      dst_alloc+0x97/0x150
[ 6716.946726][   T73]      ip6_dst_alloc+0x23/0x90
[ 6716.946726][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6716.946726][   T73]      ip6_pol_route+0x56f/0x840
[ 6716.946726][   T73]      fib6_rule_lookup+0x456/0x630
[ 6716.946726][   T73]      ip6_route_input+0x59c/0xa50
[ 6716.946726][   T73]      ipv6_rcv+0x397/0x810
[ 6716.946726][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6716.946726][   T73]      process_backlog+0x101/0x620
[ 6716.946726][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6716.946726][   T73]      net_rx_action+0x495/0xbe0
[ 6716.946726][   T73]      __do_softirq+0x1b5/0x7f6
[ 6716.946726][   T73] 
[ 6716.948614][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6716.948614][   T73]      netdev_get_by_index+0x5e/0x80
[ 6716.948614][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6716.948614][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6716.948614][   T73]      ip6_route_add+0x1c/0x140
[ 6716.948614][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6716.948614][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6716.948614][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6716.948614][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6716.948614][   T73]      netlink_rcv_skb+0x130/0x360
[ 6716.948614][   T73]      netlink_unicast+0x449/0x710
[ 6716.948614][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6716.948614][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6716.948614][   T73]      ___sys_sendmsg+0xee/0x170
[ 6716.948614][   T73]      __sys_sendmsg+0xcd/0x170
[ 6716.948614][   T73]      do_syscall_64+0xc6/0x1e0
[ 6716.948614][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6716.948614][   T73] 
[ 6716.950871][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6716.950871][   T73]      netdev_get_by_index+0x5e/0x80
[ 6716.950871][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6716.950871][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6716.950871][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6716.950871][   T73]      ipv6_add_addr+0x411/0x2000
[ 6716.950871][   T73]      inet6_addr_add+0x30e/0xa40
[ 6716.950871][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6716.950871][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6716.950871][   T73]      netlink_rcv_skb+0x130/0x360
[ 6716.950871][   T73]      netlink_unicast+0x449/0x710
[ 6716.950871][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6716.950871][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6716.950871][   T73]      ___sys_sendmsg+0xee/0x170
[ 6716.950871][   T73]      __sys_sendmsg+0xcd/0x170
[ 6716.950871][   T73]      do_syscall_64+0xc6/0x1e0
[ 6716.950871][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6716.950871][   T73] 
[ 6716.953144][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6716.953144][   T73]      netdev_get_by_index+0x5e/0x80
[ 6716.953144][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6716.953144][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6716.953144][   T73]      ip6_route_add+0x1c/0x140
[ 6716.953144][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6716.953144][   T73]      addrconf_add_dev+0xe2/0x170
[ 6716.953144][   T73]      inet6_addr_add+0x12f/0xa40
[ 6716.953144][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6716.953144][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6716.953144][   T73]      netlink_rcv_skb+0x130/0x360
[ 6716.953144][   T73]      netlink_unicast+0x449/0x710
[ 6716.953144][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6716.953144][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6716.953144][   T73]      ___sys_sendmsg+0xee/0x170
[ 6716.953144][   T73]      __sys_sendmsg+0xcd/0x170
[ 6716.953144][   T73]      do_syscall_64+0xc6/0x1e0
[ 6716.953144][   T73] 
[ 6716.955302][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6716.955302][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6716.955302][   T73]      ipv6_find_idev+0x102/0x170
[ 6716.955302][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6716.955302][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6716.955302][   T73]      netlink_rcv_skb+0x130/0x360
[ 6716.955302][   T73]      netlink_unicast+0x449/0x710
[ 6716.955302][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6716.955302][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6716.955302][   T73]      ___sys_sendmsg+0xee/0x170
[ 6716.955302][   T73]      __sys_sendmsg+0xcd/0x170
[ 6716.955302][   T73]      do_syscall_64+0xc6/0x1e0
[ 6716.955302][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6716.955302][   T73] 
[ 6716.957019][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6716.957019][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6716.957019][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6716.957019][   T73]      ipv6_find_idev+0x102/0x170
[ 6716.957019][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6716.957019][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6716.957019][   T73]      netlink_rcv_skb+0x130/0x360
[ 6716.957019][   T73]      netlink_unicast+0x449/0x710
[ 6716.957019][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6716.957019][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6716.957019][   T73]      ___sys_sendmsg+0xee/0x170
[ 6716.957019][   T73]      __sys_sendmsg+0xcd/0x170
[ 6716.957019][   T73]      do_syscall_64+0xc6/0x1e0
[ 6716.957019][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6716.957019][   T73] 
[ 6716.959027][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6716.959306][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6716.959306][   T73]      netdev_get_by_index+0x5e/0x80
[ 6716.959306][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6716.959306][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6716.959306][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6716.959306][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6716.959306][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6716.959306][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6716.959306][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6716.959306][   T73]      addrconf_dad_begin+0x310/0x670
[ 6716.959306][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6716.959306][   T73]      process_one_work+0x84d/0x18a0
[ 6716.959306][   T73]      worker_thread+0x587/0xd30
[ 6716.959306][   T73]      kthread+0x28a/0x350
[ 6716.959306][   T73]      ret_from_fork+0x31/0x70
[ 6716.959306][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6716.959306][   T73] 
[ 6716.961476][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6716.961476][   T73]      netdev_get_by_index+0x5e/0x80
[ 6716.961476][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6716.961476][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6716.961476][   T73]      ip6_route_add+0x1c/0x140
[ 6716.961476][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6716.961476][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6716.961476][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6716.961476][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6716.961476][   T73]      netlink_rcv_skb+0x130/0x360
[ 6716.961476][   T73]      netlink_unicast+0x449/0x710
[ 6716.961476][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6716.961476][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6716.961476][   T73]      ___sys_sendmsg+0xee/0x170
[ 6716.961476][   T73]      __sys_sendmsg+0xcd/0x170
[ 6716.961476][   T73]      do_syscall_64+0xc6/0x1e0
[ 6716.961476][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6716.961476][   T73] 
[ 6716.963671][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6716.963671][   T73]      netdev_get_by_index+0x5e/0x80
[ 6716.963671][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6716.963671][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6716.963671][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6716.963671][   T73]      ipv6_add_addr+0x411/0x2000
[ 6716.963671][   T73]      inet6_addr_add+0x30e/0xa40
[ 6716.963671][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6716.963671][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6716.963671][   T73]      netlink_rcv_skb+0x130/0x360
[ 6716.963671][   T73]      netlink_unicast+0x449/0x710
[ 6716.963671][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6716.963671][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6716.963671][   T73]      ___sys_sendmsg+0xee/0x170
[ 6716.963671][   T73]      __sys_sendmsg+0xcd/0x170
[ 6716.963671][   T73]      do_syscall_64+0xc6/0x1e0
[ 6716.963671][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6716.963671][   T73] 
[ 6716.965928][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6716.965928][   T73]      netdev_get_by_index+0x5e/0x80
[ 6716.965928][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6716.965928][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6716.965928][   T73]      ip6_route_add+0x1c/0x140
[ 6716.965928][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6716.965928][   T73]      addrconf_add_dev+0xe2/0x170
[ 6716.965928][   T73]      inet6_addr_add+0x12f/0xa40
[ 6716.965928][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6716.965928][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6716.965928][   T73]      netlink_rcv_skb+0x130/0x360
[ 6716.965928][   T73]      netlink_unicast+0x449/0x710
[ 6716.965928][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6716.965928][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6716.965928][   T73]      ___sys_sendmsg+0xee/0x170
[ 6716.965928][   T73]      __sys_sendmsg+0xcd/0x170
[ 6716.965928][   T73]      do_syscall_64+0xc6/0x1e0
[ 6716.965928][   T73] 
[ 6716.968761][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6716.968761][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6716.968761][   T73]      ipv6_find_idev+0x102/0x170
[ 6716.968761][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6716.968761][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6716.968761][   T73]      netlink_rcv_skb+0x130/0x360
[ 6716.968761][   T73]      netlink_unicast+0x449/0x710
[ 6716.968761][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6716.968761][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6716.968761][   T73]      ___sys_sendmsg+0xee/0x170
[ 6716.968761][   T73]      __sys_sendmsg+0xcd/0x170
[ 6716.968761][   T73]      do_syscall_64+0xc6/0x1e0
[ 6716.968761][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6716.968761][   T73] 
[ 6716.970494][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6716.970494][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6716.970494][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6716.970494][   T73]      ipv6_find_idev+0x102/0x170
[ 6716.970494][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6716.970494][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6716.970494][   T73]      netlink_rcv_skb+0x130/0x360
[ 6716.970494][   T73]      netlink_unicast+0x449/0x710
[ 6716.970494][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6716.970494][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6716.970494][   T73]      ___sys_sendmsg+0xee/0x170
[ 6716.970494][   T73]      __sys_sendmsg+0xcd/0x170
[ 6716.970494][   T73]      do_syscall_64+0xc6/0x1e0
[ 6716.970494][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6716.970494][   T73] 
[ 6727.215687][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6727.216120][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6727.216120][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6727.216120][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6727.216120][   T73]      fib6_nh_init+0xa22/0x1580
[ 6727.216120][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6727.216120][   T73]      ip6_route_add+0x1c/0x140
[ 6727.216120][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6727.216120][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6727.216120][   T73]      netlink_rcv_skb+0x130/0x360
[ 6727.216120][   T73]      netlink_unicast+0x449/0x710
[ 6727.216120][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6727.216120][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6727.216120][   T73]      ___sys_sendmsg+0xee/0x170
[ 6727.216120][   T73]      __sys_sendmsg+0xcd/0x170
[ 6727.216120][   T73]      do_syscall_64+0xc6/0x1e0
[ 6727.216120][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6727.216120][   T73] 
[ 6727.218027][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6727.218027][   T73]      dst_init+0x84/0x4a0
[ 6727.218027][   T73]      dst_alloc+0x97/0x150
[ 6727.218027][   T73]      ip6_dst_alloc+0x23/0x90
[ 6727.218027][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6727.218027][   T73]      ip6_pol_route+0x56f/0x840
[ 6727.218027][   T73]      fib6_rule_lookup+0x456/0x630
[ 6727.218027][   T73]      ip6_route_input+0x59c/0xa50
[ 6727.218027][   T73]      ipv6_rcv+0x397/0x810
[ 6727.218027][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6727.218027][   T73]      process_backlog+0x101/0x620
[ 6727.218027][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6727.218027][   T73]      net_rx_action+0x495/0xbe0
[ 6727.218027][   T73]      __do_softirq+0x1b5/0x7f6
[ 6727.218027][   T73] 
[ 6727.219675][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6727.219675][   T73]      netdev_get_by_index+0x5e/0x80
[ 6727.219675][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6727.219675][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6727.219675][   T73]      ip6_route_add+0x1c/0x140
[ 6727.219675][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6727.219675][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6727.219675][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6727.219675][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6727.219675][   T73]      netlink_rcv_skb+0x130/0x360
[ 6727.219675][   T73]      netlink_unicast+0x449/0x710
[ 6727.219675][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6727.219675][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6727.219675][   T73]      ___sys_sendmsg+0xee/0x170
[ 6727.219675][   T73]      __sys_sendmsg+0xcd/0x170
[ 6727.219675][   T73]      do_syscall_64+0xc6/0x1e0
[ 6727.219675][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6727.219675][   T73] 
[ 6727.221694][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6727.221694][   T73]      netdev_get_by_index+0x5e/0x80
[ 6727.221694][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6727.221694][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6727.221694][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6727.221694][   T73]      ipv6_add_addr+0x411/0x2000
[ 6727.221694][   T73]      inet6_addr_add+0x30e/0xa40
[ 6727.221694][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6727.221694][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6727.221694][   T73]      netlink_rcv_skb+0x130/0x360
[ 6727.221694][   T73]      netlink_unicast+0x449/0x710
[ 6727.221694][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6727.221694][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6727.221694][   T73]      ___sys_sendmsg+0xee/0x170
[ 6727.221694][   T73]      __sys_sendmsg+0xcd/0x170
[ 6727.221694][   T73]      do_syscall_64+0xc6/0x1e0
[ 6727.221694][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6727.221694][   T73] 
[ 6727.223711][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6727.223711][   T73]      netdev_get_by_index+0x5e/0x80
[ 6727.223711][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6727.223711][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6727.223711][   T73]      ip6_route_add+0x1c/0x140
[ 6727.223711][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6727.223711][   T73]      addrconf_add_dev+0xe2/0x170
[ 6727.223711][   T73]      inet6_addr_add+0x12f/0xa40
[ 6727.223711][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6727.223711][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6727.223711][   T73]      netlink_rcv_skb+0x130/0x360
[ 6727.223711][   T73]      netlink_unicast+0x449/0x710
[ 6727.223711][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6727.223711][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6727.223711][   T73]      ___sys_sendmsg+0xee/0x170
[ 6727.223711][   T73]      __sys_sendmsg+0xcd/0x170
[ 6727.223711][   T73]      do_syscall_64+0xc6/0x1e0
[ 6727.223711][   T73] 
[ 6727.225692][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6727.225692][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6727.225692][   T73]      ipv6_find_idev+0x102/0x170
[ 6727.225692][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6727.225692][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6727.225692][   T73]      netlink_rcv_skb+0x130/0x360
[ 6727.225692][   T73]      netlink_unicast+0x449/0x710
[ 6727.225692][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6727.225692][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6727.225692][   T73]      ___sys_sendmsg+0xee/0x170
[ 6727.225692][   T73]      __sys_sendmsg+0xcd/0x170
[ 6727.225692][   T73]      do_syscall_64+0xc6/0x1e0
[ 6727.225692][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6727.225692][   T73] 
[ 6727.227256][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6727.227256][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6727.227256][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6727.227256][   T73]      ipv6_find_idev+0x102/0x170
[ 6727.227256][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6727.227256][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6727.227256][   T73]      netlink_rcv_skb+0x130/0x360
[ 6727.227256][   T73]      netlink_unicast+0x449/0x710
[ 6727.227256][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6727.227256][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6727.227256][   T73]      ___sys_sendmsg+0xee/0x170
[ 6727.227256][   T73]      __sys_sendmsg+0xcd/0x170
[ 6727.227256][   T73]      do_syscall_64+0xc6/0x1e0
[ 6727.227256][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6727.227256][   T73] 
[ 6727.228946][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6727.229234][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6727.229234][   T73]      netdev_get_by_index+0x5e/0x80
[ 6727.229234][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6727.229234][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6727.229234][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6727.229234][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6727.229234][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6727.229234][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6727.229234][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6727.229234][   T73]      addrconf_dad_begin+0x310/0x670
[ 6727.229234][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6727.229234][   T73]      process_one_work+0x84d/0x18a0
[ 6727.229234][   T73]      worker_thread+0x587/0xd30
[ 6727.229234][   T73]      kthread+0x28a/0x350
[ 6727.229234][   T73]      ret_from_fork+0x31/0x70
[ 6727.229234][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6727.229234][   T73] 
[ 6727.231162][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6727.231162][   T73]      netdev_get_by_index+0x5e/0x80
[ 6727.231162][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6727.231162][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6727.231162][   T73]      ip6_route_add+0x1c/0x140
[ 6727.231162][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6727.231162][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6727.231162][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6727.231162][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6727.231162][   T73]      netlink_rcv_skb+0x130/0x360
[ 6727.231162][   T73]      netlink_unicast+0x449/0x710
[ 6727.231162][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6727.231162][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6727.231162][   T73]      ___sys_sendmsg+0xee/0x170
[ 6727.231162][   T73]      __sys_sendmsg+0xcd/0x170
[ 6727.231162][   T73]      do_syscall_64+0xc6/0x1e0
[ 6727.231162][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6727.231162][   T73] 
[ 6727.233181][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6727.233181][   T73]      netdev_get_by_index+0x5e/0x80
[ 6727.233181][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6727.233181][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6727.233181][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6727.233181][   T73]      ipv6_add_addr+0x411/0x2000
[ 6727.233181][   T73]      inet6_addr_add+0x30e/0xa40
[ 6727.233181][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6727.233181][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6727.233181][   T73]      netlink_rcv_skb+0x130/0x360
[ 6727.233181][   T73]      netlink_unicast+0x449/0x710
[ 6727.233181][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6727.233181][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6727.233181][   T73]      ___sys_sendmsg+0xee/0x170
[ 6727.233181][   T73]      __sys_sendmsg+0xcd/0x170
[ 6727.233181][   T73]      do_syscall_64+0xc6/0x1e0
[ 6727.233181][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6727.233181][   T73] 
[ 6727.235208][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6727.235208][   T73]      netdev_get_by_index+0x5e/0x80
[ 6727.235208][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6727.235208][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6727.235208][   T73]      ip6_route_add+0x1c/0x140
[ 6727.235208][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6727.235208][   T73]      addrconf_add_dev+0xe2/0x170
[ 6727.235208][   T73]      inet6_addr_add+0x12f/0xa40
[ 6727.235208][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6727.235208][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6727.235208][   T73]      netlink_rcv_skb+0x130/0x360
[ 6727.235208][   T73]      netlink_unicast+0x449/0x710
[ 6727.235208][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6727.235208][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6727.235208][   T73]      ___sys_sendmsg+0xee/0x170
[ 6727.235208][   T73]      __sys_sendmsg+0xcd/0x170
[ 6727.235208][   T73]      do_syscall_64+0xc6/0x1e0
[ 6727.235208][   T73] 
[ 6727.237179][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6727.237179][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6727.237179][   T73]      ipv6_find_idev+0x102/0x170
[ 6727.237179][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6727.237179][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6727.237179][   T73]      netlink_rcv_skb+0x130/0x360
[ 6727.237179][   T73]      netlink_unicast+0x449/0x710
[ 6727.237179][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6727.237179][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6727.237179][   T73]      ___sys_sendmsg+0xee/0x170
[ 6727.237179][   T73]      __sys_sendmsg+0xcd/0x170
[ 6727.237179][   T73]      do_syscall_64+0xc6/0x1e0
[ 6727.237179][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6727.237179][   T73] 
[ 6727.238716][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6727.238716][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6727.238716][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6727.238716][   T73]      ipv6_find_idev+0x102/0x170
[ 6727.238716][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6727.238716][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6727.238716][   T73]      netlink_rcv_skb+0x130/0x360
[ 6727.238716][   T73]      netlink_unicast+0x449/0x710
[ 6727.238716][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6727.238716][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6727.238716][   T73]      ___sys_sendmsg+0xee/0x170
[ 6727.238716][   T73]      __sys_sendmsg+0xcd/0x170
[ 6727.238716][   T73]      do_syscall_64+0xc6/0x1e0
[ 6727.238716][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6727.238716][   T73] 
[ 6727.240416][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6727.240684][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6727.240684][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6727.240684][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6727.240684][   T73]      fib6_nh_init+0xa22/0x1580
[ 6727.240684][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6727.240684][   T73]      ip6_route_add+0x1c/0x140
[ 6727.240684][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6727.240684][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6727.240684][   T73]      netlink_rcv_skb+0x130/0x360
[ 6727.240684][   T73]      netlink_unicast+0x449/0x710
[ 6727.240684][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6727.240684][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6727.240684][   T73]      ___sys_sendmsg+0xee/0x170
[ 6727.240684][   T73]      __sys_sendmsg+0xcd/0x170
[ 6727.240684][   T73]      do_syscall_64+0xc6/0x1e0
[ 6727.240684][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6727.240684][   T73] 
[ 6727.242759][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6727.242759][   T73]      dst_init+0x84/0x4a0
[ 6727.242759][   T73]      dst_alloc+0x97/0x150
[ 6727.242759][   T73]      ip6_dst_alloc+0x23/0x90
[ 6727.242759][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6727.242759][   T73]      ip6_pol_route+0x56f/0x840
[ 6727.242759][   T73]      fib6_rule_lookup+0x456/0x630
[ 6727.242759][   T73]      ip6_route_input+0x59c/0xa50
[ 6727.242759][   T73]      ipv6_rcv+0x397/0x810
[ 6727.242759][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6727.242759][   T73]      process_backlog+0x101/0x620
[ 6727.242759][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6727.242759][   T73]      net_rx_action+0x495/0xbe0
[ 6727.242759][   T73]      __do_softirq+0x1b5/0x7f6
[ 6727.242759][   T73] 
[ 6727.244596][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6727.244596][   T73]      netdev_get_by_index+0x5e/0x80
[ 6727.244596][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6727.244596][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6727.244596][   T73]      ip6_route_add+0x1c/0x140
[ 6727.244596][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6727.244596][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6727.244596][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6727.244596][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6727.244596][   T73]      netlink_rcv_skb+0x130/0x360
[ 6727.244596][   T73]      netlink_unicast+0x449/0x710
[ 6727.244596][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6727.244596][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6727.244596][   T73]      ___sys_sendmsg+0xee/0x170
[ 6727.244596][   T73]      __sys_sendmsg+0xcd/0x170
[ 6727.244596][   T73]      do_syscall_64+0xc6/0x1e0
[ 6727.244596][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6727.244596][   T73] 
[ 6727.246852][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6727.246852][   T73]      netdev_get_by_index+0x5e/0x80
[ 6727.246852][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6727.246852][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6727.246852][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6727.246852][   T73]      ipv6_add_addr+0x411/0x2000
[ 6727.246852][   T73]      inet6_addr_add+0x30e/0xa40
[ 6727.246852][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6727.246852][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6727.246852][   T73]      netlink_rcv_skb+0x130/0x360
[ 6727.246852][   T73]      netlink_unicast+0x449/0x710
[ 6727.246852][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6727.246852][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6727.246852][   T73]      ___sys_sendmsg+0xee/0x170
[ 6727.246852][   T73]      __sys_sendmsg+0xcd/0x170
[ 6727.246852][   T73]      do_syscall_64+0xc6/0x1e0
[ 6727.246852][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6727.246852][   T73] 
[ 6727.249176][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6727.249176][   T73]      netdev_get_by_index+0x5e/0x80
[ 6727.249176][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6727.249176][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6727.249176][   T73]      ip6_route_add+0x1c/0x140
[ 6727.249176][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6727.249176][   T73]      addrconf_add_dev+0xe2/0x170
[ 6727.249176][   T73]      inet6_addr_add+0x12f/0xa40
[ 6727.249176][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6727.249176][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6727.249176][   T73]      netlink_rcv_skb+0x130/0x360
[ 6727.249176][   T73]      netlink_unicast+0x449/0x710
[ 6727.249176][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6727.249176][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6727.249176][   T73]      ___sys_sendmsg+0xee/0x170
[ 6727.249176][   T73]      __sys_sendmsg+0xcd/0x170
[ 6727.249176][   T73]      do_syscall_64+0xc6/0x1e0
[ 6727.249176][   T73] 
[ 6727.251268][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6727.251268][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6727.251268][   T73]      ipv6_find_idev+0x102/0x170
[ 6727.251268][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6727.251268][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6727.251268][   T73]      netlink_rcv_skb+0x130/0x360
[ 6727.251268][   T73]      netlink_unicast+0x449/0x710
[ 6727.251268][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6727.251268][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6727.251268][   T73]      ___sys_sendmsg+0xee/0x170
[ 6727.251268][   T73]      __sys_sendmsg+0xcd/0x170
[ 6727.251268][   T73]      do_syscall_64+0xc6/0x1e0
[ 6727.251268][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6727.251268][   T73] 
[ 6727.253001][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6727.253001][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6727.253001][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6727.253001][   T73]      ipv6_find_idev+0x102/0x170
[ 6727.253001][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6727.253001][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6727.253001][   T73]      netlink_rcv_skb+0x130/0x360
[ 6727.253001][   T73]      netlink_unicast+0x449/0x710
[ 6727.253001][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6727.253001][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6727.253001][   T73]      ___sys_sendmsg+0xee/0x170
[ 6727.253001][   T73]      __sys_sendmsg+0xcd/0x170
[ 6727.253001][   T73]      do_syscall_64+0xc6/0x1e0
[ 6727.253001][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6727.253001][   T73] 
[ 6727.254936][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6727.255222][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6727.255222][   T73]      netdev_get_by_index+0x5e/0x80
[ 6727.255222][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6727.255222][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6727.255222][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6727.255222][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6727.255222][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6727.255222][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6727.255222][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6727.255222][   T73]      addrconf_dad_begin+0x310/0x670
[ 6727.255222][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6727.255222][   T73]      process_one_work+0x84d/0x18a0
[ 6727.255222][   T73]      worker_thread+0x587/0xd30
[ 6727.255222][   T73]      kthread+0x28a/0x350
[ 6727.255222][   T73]      ret_from_fork+0x31/0x70
[ 6727.255222][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6727.255222][   T73] 
[ 6727.257387][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6727.257387][   T73]      netdev_get_by_index+0x5e/0x80
[ 6727.257387][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6727.257387][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6727.257387][   T73]      ip6_route_add+0x1c/0x140
[ 6727.257387][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6727.257387][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6727.257387][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6727.257387][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6727.257387][   T73]      netlink_rcv_skb+0x130/0x360
[ 6727.257387][   T73]      netlink_unicast+0x449/0x710
[ 6727.257387][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6727.257387][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6727.257387][   T73]      ___sys_sendmsg+0xee/0x170
[ 6727.257387][   T73]      __sys_sendmsg+0xcd/0x170
[ 6727.257387][   T73]      do_syscall_64+0xc6/0x1e0
[ 6727.257387][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6727.257387][   T73] 
[ 6727.259635][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6727.259635][   T73]      netdev_get_by_index+0x5e/0x80
[ 6727.259635][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6727.259635][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6727.259635][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6727.259635][   T73]      ipv6_add_addr+0x411/0x2000
[ 6727.259635][   T73]      inet6_addr_add+0x30e/0xa40
[ 6727.259635][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6727.259635][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6727.259635][   T73]      netlink_rcv_skb+0x130/0x360
[ 6727.259635][   T73]      netlink_unicast+0x449/0x710
[ 6727.259635][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6727.259635][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6727.259635][   T73]      ___sys_sendmsg+0xee/0x170
[ 6727.259635][   T73]      __sys_sendmsg+0xcd/0x170
[ 6727.259635][   T73]      do_syscall_64+0xc6/0x1e0
[ 6727.259635][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6727.259635][   T73] 
[ 6727.261874][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6727.261874][   T73]      netdev_get_by_index+0x5e/0x80
[ 6727.261874][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6727.261874][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6727.261874][   T73]      ip6_route_add+0x1c/0x140
[ 6727.261874][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6727.261874][   T73]      addrconf_add_dev+0xe2/0x170
[ 6727.261874][   T73]      inet6_addr_add+0x12f/0xa40
[ 6727.261874][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6727.261874][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6727.261874][   T73]      netlink_rcv_skb+0x130/0x360
[ 6727.261874][   T73]      netlink_unicast+0x449/0x710
[ 6727.261874][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6727.261874][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6727.261874][   T73]      ___sys_sendmsg+0xee/0x170
[ 6727.261874][   T73]      __sys_sendmsg+0xcd/0x170
[ 6727.261874][   T73]      do_syscall_64+0xc6/0x1e0
[ 6727.261874][   T73] 
[ 6727.264089][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6727.264089][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6727.264089][   T73]      ipv6_find_idev+0x102/0x170
[ 6727.264089][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6727.264089][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6727.264089][   T73]      netlink_rcv_skb+0x130/0x360
[ 6727.264089][   T73]      netlink_unicast+0x449/0x710
[ 6727.264089][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6727.264089][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6727.264089][   T73]      ___sys_sendmsg+0xee/0x170
[ 6727.264089][   T73]      __sys_sendmsg+0xcd/0x170
[ 6727.264089][   T73]      do_syscall_64+0xc6/0x1e0
[ 6727.264089][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6727.264089][   T73] 
[ 6727.265816][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6727.265816][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6727.265816][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6727.265816][   T73]      ipv6_find_idev+0x102/0x170
[ 6727.265816][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6727.265816][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6727.265816][   T73]      netlink_rcv_skb+0x130/0x360
[ 6727.265816][   T73]      netlink_unicast+0x449/0x710
[ 6727.265816][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6727.265816][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6727.265816][   T73]      ___sys_sendmsg+0xee/0x170
[ 6727.265816][   T73]      __sys_sendmsg+0xcd/0x170
[ 6727.265816][   T73]      do_syscall_64+0xc6/0x1e0
[ 6727.265816][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6727.265816][   T73] 
[ 6737.503686][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6737.504083][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6737.504083][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6737.504083][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6737.504083][   T73]      fib6_nh_init+0xa22/0x1580
[ 6737.504083][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6737.504083][   T73]      ip6_route_add+0x1c/0x140
[ 6737.504083][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6737.504083][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6737.504083][   T73]      netlink_rcv_skb+0x130/0x360
[ 6737.504083][   T73]      netlink_unicast+0x449/0x710
[ 6737.504083][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6737.504083][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6737.504083][   T73]      ___sys_sendmsg+0xee/0x170
[ 6737.504083][   T73]      __sys_sendmsg+0xcd/0x170
[ 6737.504083][   T73]      do_syscall_64+0xc6/0x1e0
[ 6737.504083][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6737.504083][   T73] 
[ 6737.505966][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6737.505966][   T73]      dst_init+0x84/0x4a0
[ 6737.505966][   T73]      dst_alloc+0x97/0x150
[ 6737.505966][   T73]      ip6_dst_alloc+0x23/0x90
[ 6737.505966][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6737.505966][   T73]      ip6_pol_route+0x56f/0x840
[ 6737.505966][   T73]      fib6_rule_lookup+0x456/0x630
[ 6737.505966][   T73]      ip6_route_input+0x59c/0xa50
[ 6737.505966][   T73]      ipv6_rcv+0x397/0x810
[ 6737.505966][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6737.505966][   T73]      process_backlog+0x101/0x620
[ 6737.505966][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6737.505966][   T73]      net_rx_action+0x495/0xbe0
[ 6737.505966][   T73]      __do_softirq+0x1b5/0x7f6
[ 6737.505966][   T73] 
[ 6737.507595][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6737.507595][   T73]      netdev_get_by_index+0x5e/0x80
[ 6737.507595][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6737.507595][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6737.507595][   T73]      ip6_route_add+0x1c/0x140
[ 6737.507595][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6737.507595][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6737.507595][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6737.507595][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6737.507595][   T73]      netlink_rcv_skb+0x130/0x360
[ 6737.507595][   T73]      netlink_unicast+0x449/0x710
[ 6737.507595][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6737.507595][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6737.507595][   T73]      ___sys_sendmsg+0xee/0x170
[ 6737.507595][   T73]      __sys_sendmsg+0xcd/0x170
[ 6737.507595][   T73]      do_syscall_64+0xc6/0x1e0
[ 6737.507595][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6737.507595][   T73] 
[ 6737.509577][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6737.509577][   T73]      netdev_get_by_index+0x5e/0x80
[ 6737.509577][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6737.509577][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6737.509577][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6737.509577][   T73]      ipv6_add_addr+0x411/0x2000
[ 6737.509577][   T73]      inet6_addr_add+0x30e/0xa40
[ 6737.509577][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6737.509577][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6737.509577][   T73]      netlink_rcv_skb+0x130/0x360
[ 6737.509577][   T73]      netlink_unicast+0x449/0x710
[ 6737.509577][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6737.509577][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6737.509577][   T73]      ___sys_sendmsg+0xee/0x170
[ 6737.509577][   T73]      __sys_sendmsg+0xcd/0x170
[ 6737.509577][   T73]      do_syscall_64+0xc6/0x1e0
[ 6737.509577][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6737.509577][   T73] 
[ 6737.511562][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6737.511562][   T73]      netdev_get_by_index+0x5e/0x80
[ 6737.511562][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6737.511562][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6737.511562][   T73]      ip6_route_add+0x1c/0x140
[ 6737.511562][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6737.511562][   T73]      addrconf_add_dev+0xe2/0x170
[ 6737.511562][   T73]      inet6_addr_add+0x12f/0xa40
[ 6737.511562][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6737.511562][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6737.511562][   T73]      netlink_rcv_skb+0x130/0x360
[ 6737.511562][   T73]      netlink_unicast+0x449/0x710
[ 6737.511562][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6737.511562][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6737.511562][   T73]      ___sys_sendmsg+0xee/0x170
[ 6737.511562][   T73]      __sys_sendmsg+0xcd/0x170
[ 6737.511562][   T73]      do_syscall_64+0xc6/0x1e0
[ 6737.511562][   T73] 
[ 6737.513562][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6737.513562][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6737.513562][   T73]      ipv6_find_idev+0x102/0x170
[ 6737.513562][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6737.513562][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6737.513562][   T73]      netlink_rcv_skb+0x130/0x360
[ 6737.513562][   T73]      netlink_unicast+0x449/0x710
[ 6737.513562][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6737.513562][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6737.513562][   T73]      ___sys_sendmsg+0xee/0x170
[ 6737.513562][   T73]      __sys_sendmsg+0xcd/0x170
[ 6737.513562][   T73]      do_syscall_64+0xc6/0x1e0
[ 6737.513562][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6737.513562][   T73] 
[ 6737.515106][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6737.515106][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6737.515106][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6737.515106][   T73]      ipv6_find_idev+0x102/0x170
[ 6737.515106][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6737.515106][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6737.515106][   T73]      netlink_rcv_skb+0x130/0x360
[ 6737.515106][   T73]      netlink_unicast+0x449/0x710
[ 6737.515106][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6737.515106][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6737.515106][   T73]      ___sys_sendmsg+0xee/0x170
[ 6737.515106][   T73]      __sys_sendmsg+0xcd/0x170
[ 6737.515106][   T73]      do_syscall_64+0xc6/0x1e0
[ 6737.515106][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6737.515106][   T73] 
[ 6737.516784][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6737.517062][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6737.517062][   T73]      netdev_get_by_index+0x5e/0x80
[ 6737.517062][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6737.517062][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6737.517062][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6737.517062][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6737.517062][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6737.517062][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6737.517062][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6737.517062][   T73]      addrconf_dad_begin+0x310/0x670
[ 6737.517062][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6737.517062][   T73]      process_one_work+0x84d/0x18a0
[ 6737.517062][   T73]      worker_thread+0x587/0xd30
[ 6737.517062][   T73]      kthread+0x28a/0x350
[ 6737.517062][   T73]      ret_from_fork+0x31/0x70
[ 6737.517062][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6737.517062][   T73] 
[ 6737.518961][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6737.518961][   T73]      netdev_get_by_index+0x5e/0x80
[ 6737.518961][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6737.518961][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6737.518961][   T73]      ip6_route_add+0x1c/0x140
[ 6737.518961][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6737.518961][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6737.518961][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6737.518961][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6737.518961][   T73]      netlink_rcv_skb+0x130/0x360
[ 6737.518961][   T73]      netlink_unicast+0x449/0x710
[ 6737.518961][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6737.518961][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6737.518961][   T73]      ___sys_sendmsg+0xee/0x170
[ 6737.518961][   T73]      __sys_sendmsg+0xcd/0x170
[ 6737.518961][   T73]      do_syscall_64+0xc6/0x1e0
[ 6737.518961][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6737.518961][   T73] 
[ 6737.520949][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6737.520949][   T73]      netdev_get_by_index+0x5e/0x80
[ 6737.520949][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6737.520949][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6737.520949][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6737.520949][   T73]      ipv6_add_addr+0x411/0x2000
[ 6737.520949][   T73]      inet6_addr_add+0x30e/0xa40
[ 6737.520949][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6737.520949][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6737.520949][   T73]      netlink_rcv_skb+0x130/0x360
[ 6737.520949][   T73]      netlink_unicast+0x449/0x710
[ 6737.520949][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6737.520949][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6737.520949][   T73]      ___sys_sendmsg+0xee/0x170
[ 6737.520949][   T73]      __sys_sendmsg+0xcd/0x170
[ 6737.520949][   T73]      do_syscall_64+0xc6/0x1e0
[ 6737.520949][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6737.520949][   T73] 
[ 6737.522936][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6737.522936][   T73]      netdev_get_by_index+0x5e/0x80
[ 6737.522936][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6737.522936][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6737.522936][   T73]      ip6_route_add+0x1c/0x140
[ 6737.522936][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6737.522936][   T73]      addrconf_add_dev+0xe2/0x170
[ 6737.522936][   T73]      inet6_addr_add+0x12f/0xa40
[ 6737.522936][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6737.522936][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6737.522936][   T73]      netlink_rcv_skb+0x130/0x360
[ 6737.522936][   T73]      netlink_unicast+0x449/0x710
[ 6737.522936][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6737.522936][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6737.522936][   T73]      ___sys_sendmsg+0xee/0x170
[ 6737.522936][   T73]      __sys_sendmsg+0xcd/0x170
[ 6737.522936][   T73]      do_syscall_64+0xc6/0x1e0
[ 6737.522936][   T73] 
[ 6737.524892][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6737.524892][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6737.524892][   T73]      ipv6_find_idev+0x102/0x170
[ 6737.524892][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6737.524892][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6737.524892][   T73]      netlink_rcv_skb+0x130/0x360
[ 6737.524892][   T73]      netlink_unicast+0x449/0x710
[ 6737.524892][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6737.524892][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6737.524892][   T73]      ___sys_sendmsg+0xee/0x170
[ 6737.524892][   T73]      __sys_sendmsg+0xcd/0x170
[ 6737.524892][   T73]      do_syscall_64+0xc6/0x1e0
[ 6737.524892][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6737.524892][   T73] 
[ 6737.526422][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6737.526422][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6737.526422][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6737.526422][   T73]      ipv6_find_idev+0x102/0x170
[ 6737.526422][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6737.526422][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6737.526422][   T73]      netlink_rcv_skb+0x130/0x360
[ 6737.526422][   T73]      netlink_unicast+0x449/0x710
[ 6737.526422][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6737.526422][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6737.526422][   T73]      ___sys_sendmsg+0xee/0x170
[ 6737.526422][   T73]      __sys_sendmsg+0xcd/0x170
[ 6737.526422][   T73]      do_syscall_64+0xc6/0x1e0
[ 6737.526422][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6737.526422][   T73] 
[ 6737.528099][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6737.528364][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6737.528364][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6737.528364][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6737.528364][   T73]      fib6_nh_init+0xa22/0x1580
[ 6737.528364][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6737.528364][   T73]      ip6_route_add+0x1c/0x140
[ 6737.528364][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6737.528364][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6737.528364][   T73]      netlink_rcv_skb+0x130/0x360
[ 6737.528364][   T73]      netlink_unicast+0x449/0x710
[ 6737.528364][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6737.528364][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6737.528364][   T73]      ___sys_sendmsg+0xee/0x170
[ 6737.528364][   T73]      __sys_sendmsg+0xcd/0x170
[ 6737.528364][   T73]      do_syscall_64+0xc6/0x1e0
[ 6737.528364][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6737.528364][   T73] 
[ 6737.530416][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6737.530416][   T73]      dst_init+0x84/0x4a0
[ 6737.530416][   T73]      dst_alloc+0x97/0x150
[ 6737.530416][   T73]      ip6_dst_alloc+0x23/0x90
[ 6737.530416][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6737.530416][   T73]      ip6_pol_route+0x56f/0x840
[ 6737.530416][   T73]      fib6_rule_lookup+0x456/0x630
[ 6737.530416][   T73]      ip6_route_input+0x59c/0xa50
[ 6737.530416][   T73]      ipv6_rcv+0x397/0x810
[ 6737.530416][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6737.530416][   T73]      process_backlog+0x101/0x620
[ 6737.530416][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6737.530416][   T73]      net_rx_action+0x495/0xbe0
[ 6737.530416][   T73]      __do_softirq+0x1b5/0x7f6
[ 6737.530416][   T73] 
[ 6737.532217][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6737.532217][   T73]      netdev_get_by_index+0x5e/0x80
[ 6737.532217][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6737.532217][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6737.532217][   T73]      ip6_route_add+0x1c/0x140
[ 6737.532217][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6737.532217][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6737.532217][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6737.532217][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6737.532217][   T73]      netlink_rcv_skb+0x130/0x360
[ 6737.532217][   T73]      netlink_unicast+0x449/0x710
[ 6737.532217][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6737.532217][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6737.532217][   T73]      ___sys_sendmsg+0xee/0x170
[ 6737.532217][   T73]      __sys_sendmsg+0xcd/0x170
[ 6737.532217][   T73]      do_syscall_64+0xc6/0x1e0
[ 6737.532217][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6737.532217][   T73] 
[ 6737.534529][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6737.534529][   T73]      netdev_get_by_index+0x5e/0x80
[ 6737.534529][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6737.534529][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6737.534529][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6737.534529][   T73]      ipv6_add_addr+0x411/0x2000
[ 6737.534529][   T73]      inet6_addr_add+0x30e/0xa40
[ 6737.534529][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6737.534529][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6737.534529][   T73]      netlink_rcv_skb+0x130/0x360
[ 6737.534529][   T73]      netlink_unicast+0x449/0x710
[ 6737.534529][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6737.534529][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6737.534529][   T73]      ___sys_sendmsg+0xee/0x170
[ 6737.534529][   T73]      __sys_sendmsg+0xcd/0x170
[ 6737.534529][   T73]      do_syscall_64+0xc6/0x1e0
[ 6737.534529][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6737.534529][   T73] 
[ 6737.536760][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6737.536760][   T73]      netdev_get_by_index+0x5e/0x80
[ 6737.536760][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6737.536760][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6737.536760][   T73]      ip6_route_add+0x1c/0x140
[ 6737.536760][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6737.536760][   T73]      addrconf_add_dev+0xe2/0x170
[ 6737.536760][   T73]      inet6_addr_add+0x12f/0xa40
[ 6737.536760][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6737.536760][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6737.536760][   T73]      netlink_rcv_skb+0x130/0x360
[ 6737.536760][   T73]      netlink_unicast+0x449/0x710
[ 6737.536760][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6737.536760][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6737.536760][   T73]      ___sys_sendmsg+0xee/0x170
[ 6737.536760][   T73]      __sys_sendmsg+0xcd/0x170
[ 6737.536760][   T73]      do_syscall_64+0xc6/0x1e0
[ 6737.536760][   T73] 
[ 6737.538900][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6737.538900][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6737.538900][   T73]      ipv6_find_idev+0x102/0x170
[ 6737.538900][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6737.538900][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6737.538900][   T73]      netlink_rcv_skb+0x130/0x360
[ 6737.538900][   T73]      netlink_unicast+0x449/0x710
[ 6737.538900][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6737.538900][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6737.538900][   T73]      ___sys_sendmsg+0xee/0x170
[ 6737.538900][   T73]      __sys_sendmsg+0xcd/0x170
[ 6737.538900][   T73]      do_syscall_64+0xc6/0x1e0
[ 6737.538900][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6737.538900][   T73] 
[ 6737.540614][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6737.540614][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6737.540614][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6737.540614][   T73]      ipv6_find_idev+0x102/0x170
[ 6737.540614][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6737.540614][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6737.540614][   T73]      netlink_rcv_skb+0x130/0x360
[ 6737.540614][   T73]      netlink_unicast+0x449/0x710
[ 6737.540614][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6737.540614][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6737.540614][   T73]      ___sys_sendmsg+0xee/0x170
[ 6737.540614][   T73]      __sys_sendmsg+0xcd/0x170
[ 6737.540614][   T73]      do_syscall_64+0xc6/0x1e0
[ 6737.540614][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6737.540614][   T73] 
[ 6737.542608][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6737.543316][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6737.543316][   T73]      netdev_get_by_index+0x5e/0x80
[ 6737.543316][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6737.543316][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6737.543316][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6737.543316][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6737.543316][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6737.543316][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6737.543316][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6737.543316][   T73]      addrconf_dad_begin+0x310/0x670
[ 6737.543316][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6737.543316][   T73]      process_one_work+0x84d/0x18a0
[ 6737.543316][   T73]      worker_thread+0x587/0xd30
[ 6737.543316][   T73]      kthread+0x28a/0x350
[ 6737.543316][   T73]      ret_from_fork+0x31/0x70
[ 6737.543316][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6737.543316][   T73] 
[ 6737.545229][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6737.545229][   T73]      netdev_get_by_index+0x5e/0x80
[ 6737.545229][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6737.545229][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6737.545229][   T73]      ip6_route_add+0x1c/0x140
[ 6737.545229][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6737.545229][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6737.545229][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6737.545229][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6737.545229][   T73]      netlink_rcv_skb+0x130/0x360
[ 6737.545229][   T73]      netlink_unicast+0x449/0x710
[ 6737.545229][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6737.545229][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6737.545229][   T73]      ___sys_sendmsg+0xee/0x170
[ 6737.545229][   T73]      __sys_sendmsg+0xcd/0x170
[ 6737.545229][   T73]      do_syscall_64+0xc6/0x1e0
[ 6737.545229][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6737.545229][   T73] 
[ 6737.547347][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6737.547347][   T73]      netdev_get_by_index+0x5e/0x80
[ 6737.547347][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6737.547347][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6737.547347][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6737.547347][   T73]      ipv6_add_addr+0x411/0x2000
[ 6737.547347][   T73]      inet6_addr_add+0x30e/0xa40
[ 6737.547347][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6737.547347][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6737.547347][   T73]      netlink_rcv_skb+0x130/0x360
[ 6737.547347][   T73]      netlink_unicast+0x449/0x710
[ 6737.547347][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6737.547347][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6737.547347][   T73]      ___sys_sendmsg+0xee/0x170
[ 6737.547347][   T73]      __sys_sendmsg+0xcd/0x170
[ 6737.547347][   T73]      do_syscall_64+0xc6/0x1e0
[ 6737.547347][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6737.547347][   T73] 
[ 6737.549530][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6737.549530][   T73]      netdev_get_by_index+0x5e/0x80
[ 6737.549530][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6737.549530][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6737.549530][   T73]      ip6_route_add+0x1c/0x140
[ 6737.549530][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6737.549530][   T73]      addrconf_add_dev+0xe2/0x170
[ 6737.549530][   T73]      inet6_addr_add+0x12f/0xa40
[ 6737.549530][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6737.549530][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6737.549530][   T73]      netlink_rcv_skb+0x130/0x360
[ 6737.549530][   T73]      netlink_unicast+0x449/0x710
[ 6737.549530][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6737.549530][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6737.549530][   T73]      ___sys_sendmsg+0xee/0x170
[ 6737.549530][   T73]      __sys_sendmsg+0xcd/0x170
[ 6737.549530][   T73]      do_syscall_64+0xc6/0x1e0
[ 6737.549530][   T73] 
[ 6737.551734][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6737.551734][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6737.551734][   T73]      ipv6_find_idev+0x102/0x170
[ 6737.551734][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6737.551734][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6737.551734][   T73]      netlink_rcv_skb+0x130/0x360
[ 6737.551734][   T73]      netlink_unicast+0x449/0x710
[ 6737.551734][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6737.551734][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6737.551734][   T73]      ___sys_sendmsg+0xee/0x170
[ 6737.551734][   T73]      __sys_sendmsg+0xcd/0x170
[ 6737.551734][   T73]      do_syscall_64+0xc6/0x1e0
[ 6737.551734][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6737.551734][   T73] 
[ 6737.553461][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6737.553461][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6737.553461][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6737.553461][   T73]      ipv6_find_idev+0x102/0x170
[ 6737.553461][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6737.553461][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6737.553461][   T73]      netlink_rcv_skb+0x130/0x360
[ 6737.553461][   T73]      netlink_unicast+0x449/0x710
[ 6737.553461][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6737.553461][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6737.553461][   T73]      ___sys_sendmsg+0xee/0x170
[ 6737.553461][   T73]      __sys_sendmsg+0xcd/0x170
[ 6737.553461][   T73]      do_syscall_64+0xc6/0x1e0
[ 6737.553461][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6737.553461][   T73] 
[ 6747.791752][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6747.792221][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6747.792221][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6747.792221][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6747.792221][   T73]      fib6_nh_init+0xa22/0x1580
[ 6747.792221][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6747.792221][   T73]      ip6_route_add+0x1c/0x140
[ 6747.792221][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6747.792221][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6747.792221][   T73]      netlink_rcv_skb+0x130/0x360
[ 6747.792221][   T73]      netlink_unicast+0x449/0x710
[ 6747.792221][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6747.792221][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6747.792221][   T73]      ___sys_sendmsg+0xee/0x170
[ 6747.792221][   T73]      __sys_sendmsg+0xcd/0x170
[ 6747.792221][   T73]      do_syscall_64+0xc6/0x1e0
[ 6747.792221][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6747.792221][   T73] 
[ 6747.794133][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6747.794133][   T73]      dst_init+0x84/0x4a0
[ 6747.794133][   T73]      dst_alloc+0x97/0x150
[ 6747.794133][   T73]      ip6_dst_alloc+0x23/0x90
[ 6747.794133][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6747.794133][   T73]      ip6_pol_route+0x56f/0x840
[ 6747.794133][   T73]      fib6_rule_lookup+0x456/0x630
[ 6747.794133][   T73]      ip6_route_input+0x59c/0xa50
[ 6747.794133][   T73]      ipv6_rcv+0x397/0x810
[ 6747.794133][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6747.794133][   T73]      process_backlog+0x101/0x620
[ 6747.794133][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6747.794133][   T73]      net_rx_action+0x495/0xbe0
[ 6747.794133][   T73]      __do_softirq+0x1b5/0x7f6
[ 6747.794133][   T73] 
[ 6747.795782][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6747.795782][   T73]      netdev_get_by_index+0x5e/0x80
[ 6747.795782][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6747.795782][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6747.795782][   T73]      ip6_route_add+0x1c/0x140
[ 6747.795782][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6747.795782][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6747.795782][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6747.795782][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6747.795782][   T73]      netlink_rcv_skb+0x130/0x360
[ 6747.795782][   T73]      netlink_unicast+0x449/0x710
[ 6747.795782][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6747.795782][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6747.795782][   T73]      ___sys_sendmsg+0xee/0x170
[ 6747.795782][   T73]      __sys_sendmsg+0xcd/0x170
[ 6747.795782][   T73]      do_syscall_64+0xc6/0x1e0
[ 6747.795782][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6747.795782][   T73] 
[ 6747.797794][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6747.797794][   T73]      netdev_get_by_index+0x5e/0x80
[ 6747.797794][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6747.797794][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6747.797794][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6747.797794][   T73]      ipv6_add_addr+0x411/0x2000
[ 6747.797794][   T73]      inet6_addr_add+0x30e/0xa40
[ 6747.797794][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6747.797794][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6747.797794][   T73]      netlink_rcv_skb+0x130/0x360
[ 6747.797794][   T73]      netlink_unicast+0x449/0x710
[ 6747.797794][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6747.797794][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6747.797794][   T73]      ___sys_sendmsg+0xee/0x170
[ 6747.797794][   T73]      __sys_sendmsg+0xcd/0x170
[ 6747.797794][   T73]      do_syscall_64+0xc6/0x1e0
[ 6747.797794][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6747.797794][   T73] 
[ 6747.799812][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6747.799812][   T73]      netdev_get_by_index+0x5e/0x80
[ 6747.799812][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6747.799812][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6747.799812][   T73]      ip6_route_add+0x1c/0x140
[ 6747.799812][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6747.799812][   T73]      addrconf_add_dev+0xe2/0x170
[ 6747.799812][   T73]      inet6_addr_add+0x12f/0xa40
[ 6747.799812][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6747.799812][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6747.799812][   T73]      netlink_rcv_skb+0x130/0x360
[ 6747.799812][   T73]      netlink_unicast+0x449/0x710
[ 6747.799812][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6747.799812][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6747.799812][   T73]      ___sys_sendmsg+0xee/0x170
[ 6747.799812][   T73]      __sys_sendmsg+0xcd/0x170
[ 6747.799812][   T73]      do_syscall_64+0xc6/0x1e0
[ 6747.799812][   T73] 
[ 6747.801819][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6747.801819][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6747.801819][   T73]      ipv6_find_idev+0x102/0x170
[ 6747.801819][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6747.801819][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6747.801819][   T73]      netlink_rcv_skb+0x130/0x360
[ 6747.801819][   T73]      netlink_unicast+0x449/0x710
[ 6747.801819][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6747.801819][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6747.801819][   T73]      ___sys_sendmsg+0xee/0x170
[ 6747.801819][   T73]      __sys_sendmsg+0xcd/0x170
[ 6747.801819][   T73]      do_syscall_64+0xc6/0x1e0
[ 6747.801819][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6747.801819][   T73] 
[ 6747.803386][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6747.803386][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6747.803386][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6747.803386][   T73]      ipv6_find_idev+0x102/0x170
[ 6747.803386][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6747.803386][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6747.803386][   T73]      netlink_rcv_skb+0x130/0x360
[ 6747.803386][   T73]      netlink_unicast+0x449/0x710
[ 6747.803386][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6747.803386][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6747.803386][   T73]      ___sys_sendmsg+0xee/0x170
[ 6747.803386][   T73]      __sys_sendmsg+0xcd/0x170
[ 6747.803386][   T73]      do_syscall_64+0xc6/0x1e0
[ 6747.803386][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6747.803386][   T73] 
[ 6747.805073][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6747.805356][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6747.805356][   T73]      netdev_get_by_index+0x5e/0x80
[ 6747.805356][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6747.805356][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6747.805356][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6747.805356][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6747.805356][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6747.805356][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6747.805356][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6747.805356][   T73]      addrconf_dad_begin+0x310/0x670
[ 6747.805356][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6747.805356][   T73]      process_one_work+0x84d/0x18a0
[ 6747.805356][   T73]      worker_thread+0x587/0xd30
[ 6747.805356][   T73]      kthread+0x28a/0x350
[ 6747.805356][   T73]      ret_from_fork+0x31/0x70
[ 6747.805356][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6747.805356][   T73] 
[ 6747.807268][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6747.807268][   T73]      netdev_get_by_index+0x5e/0x80
[ 6747.807268][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6747.807268][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6747.807268][   T73]      ip6_route_add+0x1c/0x140
[ 6747.807268][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6747.807268][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6747.807268][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6747.807268][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6747.807268][   T73]      netlink_rcv_skb+0x130/0x360
[ 6747.807268][   T73]      netlink_unicast+0x449/0x710
[ 6747.807268][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6747.807268][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6747.807268][   T73]      ___sys_sendmsg+0xee/0x170
[ 6747.807268][   T73]      __sys_sendmsg+0xcd/0x170
[ 6747.807268][   T73]      do_syscall_64+0xc6/0x1e0
[ 6747.807268][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6747.807268][   T73] 
[ 6747.809263][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6747.809263][   T73]      netdev_get_by_index+0x5e/0x80
[ 6747.809263][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6747.809263][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6747.809263][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6747.809263][   T73]      ipv6_add_addr+0x411/0x2000
[ 6747.809263][   T73]      inet6_addr_add+0x30e/0xa40
[ 6747.809263][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6747.809263][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6747.809263][   T73]      netlink_rcv_skb+0x130/0x360
[ 6747.809263][   T73]      netlink_unicast+0x449/0x710
[ 6747.809263][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6747.809263][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6747.809263][   T73]      ___sys_sendmsg+0xee/0x170
[ 6747.809263][   T73]      __sys_sendmsg+0xcd/0x170
[ 6747.809263][   T73]      do_syscall_64+0xc6/0x1e0
[ 6747.809263][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6747.809263][   T73] 
[ 6747.811267][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6747.811267][   T73]      netdev_get_by_index+0x5e/0x80
[ 6747.811267][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6747.811267][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6747.811267][   T73]      ip6_route_add+0x1c/0x140
[ 6747.811267][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6747.811267][   T73]      addrconf_add_dev+0xe2/0x170
[ 6747.811267][   T73]      inet6_addr_add+0x12f/0xa40
[ 6747.811267][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6747.811267][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6747.811267][   T73]      netlink_rcv_skb+0x130/0x360
[ 6747.811267][   T73]      netlink_unicast+0x449/0x710
[ 6747.811267][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6747.811267][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6747.811267][   T73]      ___sys_sendmsg+0xee/0x170
[ 6747.811267][   T73]      __sys_sendmsg+0xcd/0x170
[ 6747.811267][   T73]      do_syscall_64+0xc6/0x1e0
[ 6747.811267][   T73] 
[ 6747.813267][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6747.813267][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6747.813267][   T73]      ipv6_find_idev+0x102/0x170
[ 6747.813267][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6747.813267][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6747.813267][   T73]      netlink_rcv_skb+0x130/0x360
[ 6747.813267][   T73]      netlink_unicast+0x449/0x710
[ 6747.813267][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6747.813267][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6747.813267][   T73]      ___sys_sendmsg+0xee/0x170
[ 6747.813267][   T73]      __sys_sendmsg+0xcd/0x170
[ 6747.813267][   T73]      do_syscall_64+0xc6/0x1e0
[ 6747.813267][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6747.813267][   T73] 
[ 6747.814861][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6747.814861][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6747.814861][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6747.814861][   T73]      ipv6_find_idev+0x102/0x170
[ 6747.814861][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6747.814861][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6747.814861][   T73]      netlink_rcv_skb+0x130/0x360
[ 6747.814861][   T73]      netlink_unicast+0x449/0x710
[ 6747.814861][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6747.814861][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6747.814861][   T73]      ___sys_sendmsg+0xee/0x170
[ 6747.814861][   T73]      __sys_sendmsg+0xcd/0x170
[ 6747.814861][   T73]      do_syscall_64+0xc6/0x1e0
[ 6747.814861][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6747.814861][   T73] 
[ 6747.816538][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6747.816848][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6747.816848][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6747.816848][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6747.816848][   T73]      fib6_nh_init+0xa22/0x1580
[ 6747.816848][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6747.816848][   T73]      ip6_route_add+0x1c/0x140
[ 6747.816848][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6747.816848][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6747.816848][   T73]      netlink_rcv_skb+0x130/0x360
[ 6747.816848][   T73]      netlink_unicast+0x449/0x710
[ 6747.816848][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6747.816848][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6747.816848][   T73]      ___sys_sendmsg+0xee/0x170
[ 6747.816848][   T73]      __sys_sendmsg+0xcd/0x170
[ 6747.816848][   T73]      do_syscall_64+0xc6/0x1e0
[ 6747.816848][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6747.816848][   T73] 
[ 6747.818805][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6747.818805][   T73]      dst_init+0x84/0x4a0
[ 6747.818805][   T73]      dst_alloc+0x97/0x150
[ 6747.818805][   T73]      ip6_dst_alloc+0x23/0x90
[ 6747.818805][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6747.818805][   T73]      ip6_pol_route+0x56f/0x840
[ 6747.818805][   T73]      fib6_rule_lookup+0x456/0x630
[ 6747.818805][   T73]      ip6_route_input+0x59c/0xa50
[ 6747.818805][   T73]      ipv6_rcv+0x397/0x810
[ 6747.818805][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6747.818805][   T73]      process_backlog+0x101/0x620
[ 6747.818805][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6747.818805][   T73]      net_rx_action+0x495/0xbe0
[ 6747.818805][   T73]      __do_softirq+0x1b5/0x7f6
[ 6747.818805][   T73] 
[ 6747.820509][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6747.820509][   T73]      netdev_get_by_index+0x5e/0x80
[ 6747.820509][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6747.820509][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6747.820509][   T73]      ip6_route_add+0x1c/0x140
[ 6747.820509][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6747.820509][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6747.820509][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6747.820509][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6747.820509][   T73]      netlink_rcv_skb+0x130/0x360
[ 6747.820509][   T73]      netlink_unicast+0x449/0x710
[ 6747.820509][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6747.820509][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6747.820509][   T73]      ___sys_sendmsg+0xee/0x170
[ 6747.820509][   T73]      __sys_sendmsg+0xcd/0x170
[ 6747.820509][   T73]      do_syscall_64+0xc6/0x1e0
[ 6747.820509][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6747.820509][   T73] 
[ 6747.822639][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6747.822639][   T73]      netdev_get_by_index+0x5e/0x80
[ 6747.822639][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6747.822639][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6747.822639][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6747.822639][   T73]      ipv6_add_addr+0x411/0x2000
[ 6747.822639][   T73]      inet6_addr_add+0x30e/0xa40
[ 6747.822639][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6747.822639][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6747.822639][   T73]      netlink_rcv_skb+0x130/0x360
[ 6747.822639][   T73]      netlink_unicast+0x449/0x710
[ 6747.822639][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6747.822639][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6747.822639][   T73]      ___sys_sendmsg+0xee/0x170
[ 6747.822639][   T73]      __sys_sendmsg+0xcd/0x170
[ 6747.822639][   T73]      do_syscall_64+0xc6/0x1e0
[ 6747.822639][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6747.822639][   T73] 
[ 6747.824706][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6747.824706][   T73]      netdev_get_by_index+0x5e/0x80
[ 6747.824706][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6747.824706][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6747.824706][   T73]      ip6_route_add+0x1c/0x140
[ 6747.824706][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6747.824706][   T73]      addrconf_add_dev+0xe2/0x170
[ 6747.824706][   T73]      inet6_addr_add+0x12f/0xa40
[ 6747.824706][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6747.824706][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6747.824706][   T73]      netlink_rcv_skb+0x130/0x360
[ 6747.824706][   T73]      netlink_unicast+0x449/0x710
[ 6747.824706][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6747.824706][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6747.824706][   T73]      ___sys_sendmsg+0xee/0x170
[ 6747.824706][   T73]      __sys_sendmsg+0xcd/0x170
[ 6747.824706][   T73]      do_syscall_64+0xc6/0x1e0
[ 6747.824706][   T73] 
[ 6747.826747][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6747.826747][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6747.826747][   T73]      ipv6_find_idev+0x102/0x170
[ 6747.826747][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6747.826747][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6747.826747][   T73]      netlink_rcv_skb+0x130/0x360
[ 6747.826747][   T73]      netlink_unicast+0x449/0x710
[ 6747.826747][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6747.826747][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6747.826747][   T73]      ___sys_sendmsg+0xee/0x170
[ 6747.826747][   T73]      __sys_sendmsg+0xcd/0x170
[ 6747.826747][   T73]      do_syscall_64+0xc6/0x1e0
[ 6747.826747][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6747.826747][   T73] 
[ 6747.828349][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6747.828349][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6747.828349][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6747.828349][   T73]      ipv6_find_idev+0x102/0x170
[ 6747.828349][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6747.828349][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6747.828349][   T73]      netlink_rcv_skb+0x130/0x360
[ 6747.828349][   T73]      netlink_unicast+0x449/0x710
[ 6747.828349][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6747.828349][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6747.828349][   T73]      ___sys_sendmsg+0xee/0x170
[ 6747.828349][   T73]      __sys_sendmsg+0xcd/0x170
[ 6747.828349][   T73]      do_syscall_64+0xc6/0x1e0
[ 6747.828349][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6747.828349][   T73] 
[ 6747.830097][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6747.830375][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6747.830375][   T73]      netdev_get_by_index+0x5e/0x80
[ 6747.830375][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6747.830375][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6747.830375][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6747.830375][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6747.830375][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6747.830375][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6747.830375][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6747.830375][   T73]      addrconf_dad_begin+0x310/0x670
[ 6747.830375][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6747.830375][   T73]      process_one_work+0x84d/0x18a0
[ 6747.830375][   T73]      worker_thread+0x587/0xd30
[ 6747.830375][   T73]      kthread+0x28a/0x350
[ 6747.830375][   T73]      ret_from_fork+0x31/0x70
[ 6747.830375][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6747.830375][   T73] 
[ 6747.832462][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6747.832462][   T73]      netdev_get_by_index+0x5e/0x80
[ 6747.832462][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6747.832462][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6747.832462][   T73]      ip6_route_add+0x1c/0x140
[ 6747.832462][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6747.832462][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6747.832462][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6747.832462][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6747.832462][   T73]      netlink_rcv_skb+0x130/0x360
[ 6747.832462][   T73]      netlink_unicast+0x449/0x710
[ 6747.832462][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6747.832462][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6747.832462][   T73]      ___sys_sendmsg+0xee/0x170
[ 6747.832462][   T73]      __sys_sendmsg+0xcd/0x170
[ 6747.832462][   T73]      do_syscall_64+0xc6/0x1e0
[ 6747.832462][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6747.832462][   T73] 
[ 6747.834538][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6747.834538][   T73]      netdev_get_by_index+0x5e/0x80
[ 6747.834538][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6747.834538][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6747.834538][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6747.834538][   T73]      ipv6_add_addr+0x411/0x2000
[ 6747.834538][   T73]      inet6_addr_add+0x30e/0xa40
[ 6747.834538][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6747.834538][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6747.834538][   T73]      netlink_rcv_skb+0x130/0x360
[ 6747.834538][   T73]      netlink_unicast+0x449/0x710
[ 6747.834538][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6747.834538][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6747.834538][   T73]      ___sys_sendmsg+0xee/0x170
[ 6747.834538][   T73]      __sys_sendmsg+0xcd/0x170
[ 6747.834538][   T73]      do_syscall_64+0xc6/0x1e0
[ 6747.834538][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6747.834538][   T73] 
[ 6747.836613][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6747.836613][   T73]      netdev_get_by_index+0x5e/0x80
[ 6747.836613][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6747.836613][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6747.836613][   T73]      ip6_route_add+0x1c/0x140
[ 6747.836613][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6747.836613][   T73]      addrconf_add_dev+0xe2/0x170
[ 6747.836613][   T73]      inet6_addr_add+0x12f/0xa40
[ 6747.836613][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6747.836613][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6747.836613][   T73]      netlink_rcv_skb+0x130/0x360
[ 6747.836613][   T73]      netlink_unicast+0x449/0x710
[ 6747.836613][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6747.836613][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6747.836613][   T73]      ___sys_sendmsg+0xee/0x170
[ 6747.836613][   T73]      __sys_sendmsg+0xcd/0x170
[ 6747.836613][   T73]      do_syscall_64+0xc6/0x1e0
[ 6747.836613][   T73] 
[ 6747.838710][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6747.838710][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6747.838710][   T73]      ipv6_find_idev+0x102/0x170
[ 6747.838710][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6747.838710][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6747.838710][   T73]      netlink_rcv_skb+0x130/0x360
[ 6747.838710][   T73]      netlink_unicast+0x449/0x710
[ 6747.838710][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6747.838710][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6747.838710][   T73]      ___sys_sendmsg+0xee/0x170
[ 6747.838710][   T73]      __sys_sendmsg+0xcd/0x170
[ 6747.838710][   T73]      do_syscall_64+0xc6/0x1e0
[ 6747.838710][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6747.838710][   T73] 
[ 6747.840324][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6747.840324][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6747.840324][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6747.840324][   T73]      ipv6_find_idev+0x102/0x170
[ 6747.840324][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6747.840324][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6747.840324][   T73]      netlink_rcv_skb+0x130/0x360
[ 6747.840324][   T73]      netlink_unicast+0x449/0x710
[ 6747.840324][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6747.840324][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6747.840324][   T73]      ___sys_sendmsg+0xee/0x170
[ 6747.840324][   T73]      __sys_sendmsg+0xcd/0x170
[ 6747.840324][   T73]      do_syscall_64+0xc6/0x1e0
[ 6747.840324][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6747.840324][   T73] 
[ 6758.095751][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6758.096132][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6758.096132][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6758.096132][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6758.096132][   T73]      fib6_nh_init+0xa22/0x1580
[ 6758.096132][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6758.096132][   T73]      ip6_route_add+0x1c/0x140
[ 6758.096132][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6758.096132][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6758.096132][   T73]      netlink_rcv_skb+0x130/0x360
[ 6758.096132][   T73]      netlink_unicast+0x449/0x710
[ 6758.096132][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6758.096132][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6758.096132][   T73]      ___sys_sendmsg+0xee/0x170
[ 6758.096132][   T73]      __sys_sendmsg+0xcd/0x170
[ 6758.096132][   T73]      do_syscall_64+0xc6/0x1e0
[ 6758.096132][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6758.096132][   T73] 
[ 6758.098056][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6758.098056][   T73]      dst_init+0x84/0x4a0
[ 6758.098056][   T73]      dst_alloc+0x97/0x150
[ 6758.098056][   T73]      ip6_dst_alloc+0x23/0x90
[ 6758.098056][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6758.098056][   T73]      ip6_pol_route+0x56f/0x840
[ 6758.098056][   T73]      fib6_rule_lookup+0x456/0x630
[ 6758.098056][   T73]      ip6_route_input+0x59c/0xa50
[ 6758.098056][   T73]      ipv6_rcv+0x397/0x810
[ 6758.098056][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6758.098056][   T73]      process_backlog+0x101/0x620
[ 6758.098056][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6758.098056][   T73]      net_rx_action+0x495/0xbe0
[ 6758.098056][   T73]      __do_softirq+0x1b5/0x7f6
[ 6758.098056][   T73] 
[ 6758.099718][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6758.099718][   T73]      netdev_get_by_index+0x5e/0x80
[ 6758.099718][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6758.099718][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6758.099718][   T73]      ip6_route_add+0x1c/0x140
[ 6758.099718][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6758.099718][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6758.099718][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6758.099718][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6758.099718][   T73]      netlink_rcv_skb+0x130/0x360
[ 6758.099718][   T73]      netlink_unicast+0x449/0x710
[ 6758.099718][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6758.099718][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6758.099718][   T73]      ___sys_sendmsg+0xee/0x170
[ 6758.099718][   T73]      __sys_sendmsg+0xcd/0x170
[ 6758.099718][   T73]      do_syscall_64+0xc6/0x1e0
[ 6758.099718][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6758.099718][   T73] 
[ 6758.102245][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6758.102245][   T73]      netdev_get_by_index+0x5e/0x80
[ 6758.102245][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6758.102245][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6758.102245][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6758.102245][   T73]      ipv6_add_addr+0x411/0x2000
[ 6758.102245][   T73]      inet6_addr_add+0x30e/0xa40
[ 6758.102245][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6758.102245][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6758.102245][   T73]      netlink_rcv_skb+0x130/0x360
[ 6758.102245][   T73]      netlink_unicast+0x449/0x710
[ 6758.102245][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6758.102245][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6758.102245][   T73]      ___sys_sendmsg+0xee/0x170
[ 6758.102245][   T73]      __sys_sendmsg+0xcd/0x170
[ 6758.102245][   T73]      do_syscall_64+0xc6/0x1e0
[ 6758.102245][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6758.102245][   T73] 
[ 6758.104262][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6758.104262][   T73]      netdev_get_by_index+0x5e/0x80
[ 6758.104262][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6758.104262][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6758.104262][   T73]      ip6_route_add+0x1c/0x140
[ 6758.104262][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6758.104262][   T73]      addrconf_add_dev+0xe2/0x170
[ 6758.104262][   T73]      inet6_addr_add+0x12f/0xa40
[ 6758.104262][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6758.104262][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6758.104262][   T73]      netlink_rcv_skb+0x130/0x360
[ 6758.104262][   T73]      netlink_unicast+0x449/0x710
[ 6758.104262][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6758.104262][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6758.104262][   T73]      ___sys_sendmsg+0xee/0x170
[ 6758.104262][   T73]      __sys_sendmsg+0xcd/0x170
[ 6758.104262][   T73]      do_syscall_64+0xc6/0x1e0
[ 6758.104262][   T73] 
[ 6758.108160][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6758.108160][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6758.108160][   T73]      ipv6_find_idev+0x102/0x170
[ 6758.108160][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6758.108160][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6758.108160][   T73]      netlink_rcv_skb+0x130/0x360
[ 6758.108160][   T73]      netlink_unicast+0x449/0x710
[ 6758.108160][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6758.108160][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6758.108160][   T73]      ___sys_sendmsg+0xee/0x170
[ 6758.108160][   T73]      __sys_sendmsg+0xcd/0x170
[ 6758.108160][   T73]      do_syscall_64+0xc6/0x1e0
[ 6758.108160][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6758.108160][   T73] 
[ 6758.109711][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6758.109711][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6758.109711][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6758.109711][   T73]      ipv6_find_idev+0x102/0x170
[ 6758.109711][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6758.109711][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6758.109711][   T73]      netlink_rcv_skb+0x130/0x360
[ 6758.109711][   T73]      netlink_unicast+0x449/0x710
[ 6758.109711][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6758.109711][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6758.109711][   T73]      ___sys_sendmsg+0xee/0x170
[ 6758.109711][   T73]      __sys_sendmsg+0xcd/0x170
[ 6758.109711][   T73]      do_syscall_64+0xc6/0x1e0
[ 6758.109711][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6758.109711][   T73] 
[ 6758.111413][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6758.111714][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6758.111714][   T73]      netdev_get_by_index+0x5e/0x80
[ 6758.111714][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6758.111714][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6758.111714][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6758.111714][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6758.111714][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6758.111714][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6758.111714][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6758.111714][   T73]      addrconf_dad_begin+0x310/0x670
[ 6758.111714][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6758.111714][   T73]      process_one_work+0x84d/0x18a0
[ 6758.111714][   T73]      worker_thread+0x587/0xd30
[ 6758.111714][   T73]      kthread+0x28a/0x350
[ 6758.111714][   T73]      ret_from_fork+0x31/0x70
[ 6758.111714][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6758.111714][   T73] 
[ 6758.113646][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6758.113646][   T73]      netdev_get_by_index+0x5e/0x80
[ 6758.113646][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6758.113646][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6758.113646][   T73]      ip6_route_add+0x1c/0x140
[ 6758.113646][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6758.113646][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6758.113646][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6758.113646][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6758.113646][   T73]      netlink_rcv_skb+0x130/0x360
[ 6758.113646][   T73]      netlink_unicast+0x449/0x710
[ 6758.113646][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6758.113646][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6758.113646][   T73]      ___sys_sendmsg+0xee/0x170
[ 6758.113646][   T73]      __sys_sendmsg+0xcd/0x170
[ 6758.113646][   T73]      do_syscall_64+0xc6/0x1e0
[ 6758.113646][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6758.113646][   T73] 
[ 6758.115676][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6758.115676][   T73]      netdev_get_by_index+0x5e/0x80
[ 6758.115676][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6758.115676][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6758.115676][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6758.115676][   T73]      ipv6_add_addr+0x411/0x2000
[ 6758.115676][   T73]      inet6_addr_add+0x30e/0xa40
[ 6758.115676][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6758.115676][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6758.115676][   T73]      netlink_rcv_skb+0x130/0x360
[ 6758.115676][   T73]      netlink_unicast+0x449/0x710
[ 6758.115676][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6758.115676][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6758.115676][   T73]      ___sys_sendmsg+0xee/0x170
[ 6758.115676][   T73]      __sys_sendmsg+0xcd/0x170
[ 6758.115676][   T73]      do_syscall_64+0xc6/0x1e0
[ 6758.115676][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6758.115676][   T73] 
[ 6758.117697][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6758.117697][   T73]      netdev_get_by_index+0x5e/0x80
[ 6758.117697][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6758.117697][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6758.117697][   T73]      ip6_route_add+0x1c/0x140
[ 6758.117697][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6758.117697][   T73]      addrconf_add_dev+0xe2/0x170
[ 6758.117697][   T73]      inet6_addr_add+0x12f/0xa40
[ 6758.117697][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6758.117697][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6758.117697][   T73]      netlink_rcv_skb+0x130/0x360
[ 6758.117697][   T73]      netlink_unicast+0x449/0x710
[ 6758.117697][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6758.117697][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6758.117697][   T73]      ___sys_sendmsg+0xee/0x170
[ 6758.117697][   T73]      __sys_sendmsg+0xcd/0x170
[ 6758.117697][   T73]      do_syscall_64+0xc6/0x1e0
[ 6758.117697][   T73] 
[ 6758.119670][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6758.119670][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6758.119670][   T73]      ipv6_find_idev+0x102/0x170
[ 6758.119670][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6758.119670][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6758.119670][   T73]      netlink_rcv_skb+0x130/0x360
[ 6758.119670][   T73]      netlink_unicast+0x449/0x710
[ 6758.119670][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6758.119670][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6758.119670][   T73]      ___sys_sendmsg+0xee/0x170
[ 6758.119670][   T73]      __sys_sendmsg+0xcd/0x170
[ 6758.119670][   T73]      do_syscall_64+0xc6/0x1e0
[ 6758.119670][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6758.119670][   T73] 
[ 6758.121221][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6758.121221][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6758.121221][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6758.121221][   T73]      ipv6_find_idev+0x102/0x170
[ 6758.121221][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6758.121221][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6758.121221][   T73]      netlink_rcv_skb+0x130/0x360
[ 6758.121221][   T73]      netlink_unicast+0x449/0x710
[ 6758.121221][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6758.121221][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6758.121221][   T73]      ___sys_sendmsg+0xee/0x170
[ 6758.121221][   T73]      __sys_sendmsg+0xcd/0x170
[ 6758.121221][   T73]      do_syscall_64+0xc6/0x1e0
[ 6758.121221][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6758.121221][   T73] 
[ 6758.122920][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6758.123197][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6758.123197][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6758.123197][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6758.123197][   T73]      fib6_nh_init+0xa22/0x1580
[ 6758.123197][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6758.123197][   T73]      ip6_route_add+0x1c/0x140
[ 6758.123197][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6758.123197][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6758.123197][   T73]      netlink_rcv_skb+0x130/0x360
[ 6758.123197][   T73]      netlink_unicast+0x449/0x710
[ 6758.123197][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6758.123197][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6758.123197][   T73]      ___sys_sendmsg+0xee/0x170
[ 6758.123197][   T73]      __sys_sendmsg+0xcd/0x170
[ 6758.123197][   T73]      do_syscall_64+0xc6/0x1e0
[ 6758.123197][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6758.123197][   T73] 
[ 6758.125275][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6758.125275][   T73]      dst_init+0x84/0x4a0
[ 6758.125275][   T73]      dst_alloc+0x97/0x150
[ 6758.125275][   T73]      ip6_dst_alloc+0x23/0x90
[ 6758.125275][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6758.125275][   T73]      ip6_pol_route+0x56f/0x840
[ 6758.125275][   T73]      fib6_rule_lookup+0x456/0x630
[ 6758.125275][   T73]      ip6_route_input+0x59c/0xa50
[ 6758.125275][   T73]      ipv6_rcv+0x397/0x810
[ 6758.125275][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6758.125275][   T73]      process_backlog+0x101/0x620
[ 6758.125275][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6758.125275][   T73]      net_rx_action+0x495/0xbe0
[ 6758.125275][   T73]      __do_softirq+0x1b5/0x7f6
[ 6758.125275][   T73] 
[ 6758.127101][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6758.127101][   T73]      netdev_get_by_index+0x5e/0x80
[ 6758.127101][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6758.127101][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6758.127101][   T73]      ip6_route_add+0x1c/0x140
[ 6758.127101][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6758.127101][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6758.127101][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6758.127101][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6758.127101][   T73]      netlink_rcv_skb+0x130/0x360
[ 6758.127101][   T73]      netlink_unicast+0x449/0x710
[ 6758.127101][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6758.127101][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6758.127101][   T73]      ___sys_sendmsg+0xee/0x170
[ 6758.127101][   T73]      __sys_sendmsg+0xcd/0x170
[ 6758.127101][   T73]      do_syscall_64+0xc6/0x1e0
[ 6758.127101][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6758.127101][   T73] 
[ 6758.129357][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6758.129357][   T73]      netdev_get_by_index+0x5e/0x80
[ 6758.129357][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6758.129357][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6758.129357][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6758.129357][   T73]      ipv6_add_addr+0x411/0x2000
[ 6758.129357][   T73]      inet6_addr_add+0x30e/0xa40
[ 6758.129357][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6758.129357][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6758.129357][   T73]      netlink_rcv_skb+0x130/0x360
[ 6758.129357][   T73]      netlink_unicast+0x449/0x710
[ 6758.129357][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6758.129357][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6758.129357][   T73]      ___sys_sendmsg+0xee/0x170
[ 6758.129357][   T73]      __sys_sendmsg+0xcd/0x170
[ 6758.129357][   T73]      do_syscall_64+0xc6/0x1e0
[ 6758.129357][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6758.129357][   T73] 
[ 6758.131674][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6758.131674][   T73]      netdev_get_by_index+0x5e/0x80
[ 6758.131674][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6758.131674][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6758.131674][   T73]      ip6_route_add+0x1c/0x140
[ 6758.131674][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6758.131674][   T73]      addrconf_add_dev+0xe2/0x170
[ 6758.131674][   T73]      inet6_addr_add+0x12f/0xa40
[ 6758.131674][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6758.131674][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6758.131674][   T73]      netlink_rcv_skb+0x130/0x360
[ 6758.131674][   T73]      netlink_unicast+0x449/0x710
[ 6758.131674][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6758.131674][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6758.131674][   T73]      ___sys_sendmsg+0xee/0x170
[ 6758.131674][   T73]      __sys_sendmsg+0xcd/0x170
[ 6758.131674][   T73]      do_syscall_64+0xc6/0x1e0
[ 6758.131674][   T73] 
[ 6758.133848][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6758.133848][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6758.133848][   T73]      ipv6_find_idev+0x102/0x170
[ 6758.133848][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6758.133848][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6758.133848][   T73]      netlink_rcv_skb+0x130/0x360
[ 6758.133848][   T73]      netlink_unicast+0x449/0x710
[ 6758.133848][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6758.133848][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6758.133848][   T73]      ___sys_sendmsg+0xee/0x170
[ 6758.133848][   T73]      __sys_sendmsg+0xcd/0x170
[ 6758.133848][   T73]      do_syscall_64+0xc6/0x1e0
[ 6758.133848][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6758.133848][   T73] 
[ 6758.135586][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6758.135586][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6758.135586][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6758.135586][   T73]      ipv6_find_idev+0x102/0x170
[ 6758.135586][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6758.135586][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6758.135586][   T73]      netlink_rcv_skb+0x130/0x360
[ 6758.135586][   T73]      netlink_unicast+0x449/0x710
[ 6758.135586][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6758.135586][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6758.135586][   T73]      ___sys_sendmsg+0xee/0x170
[ 6758.135586][   T73]      __sys_sendmsg+0xcd/0x170
[ 6758.135586][   T73]      do_syscall_64+0xc6/0x1e0
[ 6758.135586][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6758.135586][   T73] 
[ 6758.137518][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6758.138215][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6758.138215][   T73]      netdev_get_by_index+0x5e/0x80
[ 6758.138215][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6758.138215][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6758.138215][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6758.138215][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6758.138215][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6758.138215][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6758.138215][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6758.138215][   T73]      addrconf_dad_begin+0x310/0x670
[ 6758.138215][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6758.138215][   T73]      process_one_work+0x84d/0x18a0
[ 6758.138215][   T73]      worker_thread+0x587/0xd30
[ 6758.138215][   T73]      kthread+0x28a/0x350
[ 6758.138215][   T73]      ret_from_fork+0x31/0x70
[ 6758.138215][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6758.138215][   T73] 
[ 6758.140143][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6758.140143][   T73]      netdev_get_by_index+0x5e/0x80
[ 6758.140143][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6758.140143][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6758.140143][   T73]      ip6_route_add+0x1c/0x140
[ 6758.140143][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6758.140143][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6758.140143][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6758.140143][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6758.140143][   T73]      netlink_rcv_skb+0x130/0x360
[ 6758.140143][   T73]      netlink_unicast+0x449/0x710
[ 6758.140143][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6758.140143][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6758.140143][   T73]      ___sys_sendmsg+0xee/0x170
[ 6758.140143][   T73]      __sys_sendmsg+0xcd/0x170
[ 6758.140143][   T73]      do_syscall_64+0xc6/0x1e0
[ 6758.140143][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6758.140143][   T73] 
[ 6758.142282][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6758.142282][   T73]      netdev_get_by_index+0x5e/0x80
[ 6758.142282][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6758.142282][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6758.142282][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6758.142282][   T73]      ipv6_add_addr+0x411/0x2000
[ 6758.142282][   T73]      inet6_addr_add+0x30e/0xa40
[ 6758.142282][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6758.142282][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6758.142282][   T73]      netlink_rcv_skb+0x130/0x360
[ 6758.142282][   T73]      netlink_unicast+0x449/0x710
[ 6758.142282][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6758.142282][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6758.142282][   T73]      ___sys_sendmsg+0xee/0x170
[ 6758.142282][   T73]      __sys_sendmsg+0xcd/0x170
[ 6758.142282][   T73]      do_syscall_64+0xc6/0x1e0
[ 6758.142282][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6758.142282][   T73] 
[ 6758.144554][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6758.144554][   T73]      netdev_get_by_index+0x5e/0x80
[ 6758.144554][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6758.144554][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6758.144554][   T73]      ip6_route_add+0x1c/0x140
[ 6758.144554][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6758.144554][   T73]      addrconf_add_dev+0xe2/0x170
[ 6758.144554][   T73]      inet6_addr_add+0x12f/0xa40
[ 6758.144554][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6758.144554][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6758.144554][   T73]      netlink_rcv_skb+0x130/0x360
[ 6758.144554][   T73]      netlink_unicast+0x449/0x710
[ 6758.144554][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6758.144554][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6758.144554][   T73]      ___sys_sendmsg+0xee/0x170
[ 6758.144554][   T73]      __sys_sendmsg+0xcd/0x170
[ 6758.144554][   T73]      do_syscall_64+0xc6/0x1e0
[ 6758.144554][   T73] 
[ 6758.146783][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6758.146783][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6758.146783][   T73]      ipv6_find_idev+0x102/0x170
[ 6758.146783][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6758.146783][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6758.146783][   T73]      netlink_rcv_skb+0x130/0x360
[ 6758.146783][   T73]      netlink_unicast+0x449/0x710
[ 6758.146783][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6758.146783][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6758.146783][   T73]      ___sys_sendmsg+0xee/0x170
[ 6758.146783][   T73]      __sys_sendmsg+0xcd/0x170
[ 6758.146783][   T73]      do_syscall_64+0xc6/0x1e0
[ 6758.146783][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6758.146783][   T73] 
[ 6758.148518][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6758.148518][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6758.148518][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6758.148518][   T73]      ipv6_find_idev+0x102/0x170
[ 6758.148518][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6758.148518][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6758.148518][   T73]      netlink_rcv_skb+0x130/0x360
[ 6758.148518][   T73]      netlink_unicast+0x449/0x710
[ 6758.148518][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6758.148518][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6758.148518][   T73]      ___sys_sendmsg+0xee/0x170
[ 6758.148518][   T73]      __sys_sendmsg+0xcd/0x170
[ 6758.148518][   T73]      do_syscall_64+0xc6/0x1e0
[ 6758.148518][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6758.148518][   T73] 
[ 6768.151758][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6768.152140][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6768.152140][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6768.152140][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6768.152140][   T73]      fib6_nh_init+0xa22/0x1580
[ 6768.152140][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6768.152140][   T73]      ip6_route_add+0x1c/0x140
[ 6768.152140][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6768.152140][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6768.152140][   T73]      netlink_rcv_skb+0x130/0x360
[ 6768.152140][   T73]      netlink_unicast+0x449/0x710
[ 6768.152140][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6768.152140][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6768.152140][   T73]      ___sys_sendmsg+0xee/0x170
[ 6768.152140][   T73]      __sys_sendmsg+0xcd/0x170
[ 6768.152140][   T73]      do_syscall_64+0xc6/0x1e0
[ 6768.152140][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6768.152140][   T73] 
[ 6768.154101][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6768.154101][   T73]      dst_init+0x84/0x4a0
[ 6768.154101][   T73]      dst_alloc+0x97/0x150
[ 6768.154101][   T73]      ip6_dst_alloc+0x23/0x90
[ 6768.154101][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6768.154101][   T73]      ip6_pol_route+0x56f/0x840
[ 6768.154101][   T73]      fib6_rule_lookup+0x456/0x630
[ 6768.154101][   T73]      ip6_route_input+0x59c/0xa50
[ 6768.154101][   T73]      ipv6_rcv+0x397/0x810
[ 6768.154101][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6768.154101][   T73]      process_backlog+0x101/0x620
[ 6768.154101][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6768.154101][   T73]      net_rx_action+0x495/0xbe0
[ 6768.154101][   T73]      __do_softirq+0x1b5/0x7f6
[ 6768.154101][   T73] 
[ 6768.155747][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6768.155747][   T73]      netdev_get_by_index+0x5e/0x80
[ 6768.155747][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6768.155747][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6768.155747][   T73]      ip6_route_add+0x1c/0x140
[ 6768.155747][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6768.155747][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6768.155747][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6768.155747][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6768.155747][   T73]      netlink_rcv_skb+0x130/0x360
[ 6768.155747][   T73]      netlink_unicast+0x449/0x710
[ 6768.155747][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6768.155747][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6768.155747][   T73]      ___sys_sendmsg+0xee/0x170
[ 6768.155747][   T73]      __sys_sendmsg+0xcd/0x170
[ 6768.155747][   T73]      do_syscall_64+0xc6/0x1e0
[ 6768.155747][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6768.155747][   T73] 
[ 6768.157755][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6768.157755][   T73]      netdev_get_by_index+0x5e/0x80
[ 6768.157755][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6768.157755][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6768.157755][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6768.157755][   T73]      ipv6_add_addr+0x411/0x2000
[ 6768.157755][   T73]      inet6_addr_add+0x30e/0xa40
[ 6768.157755][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6768.157755][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6768.157755][   T73]      netlink_rcv_skb+0x130/0x360
[ 6768.157755][   T73]      netlink_unicast+0x449/0x710
[ 6768.157755][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6768.157755][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6768.157755][   T73]      ___sys_sendmsg+0xee/0x170
[ 6768.157755][   T73]      __sys_sendmsg+0xcd/0x170
[ 6768.157755][   T73]      do_syscall_64+0xc6/0x1e0
[ 6768.157755][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6768.157755][   T73] 
[ 6768.159754][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6768.159754][   T73]      netdev_get_by_index+0x5e/0x80
[ 6768.159754][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6768.159754][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6768.159754][   T73]      ip6_route_add+0x1c/0x140
[ 6768.159754][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6768.159754][   T73]      addrconf_add_dev+0xe2/0x170
[ 6768.159754][   T73]      inet6_addr_add+0x12f/0xa40
[ 6768.159754][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6768.159754][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6768.159754][   T73]      netlink_rcv_skb+0x130/0x360
[ 6768.159754][   T73]      netlink_unicast+0x449/0x710
[ 6768.159754][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6768.159754][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6768.159754][   T73]      ___sys_sendmsg+0xee/0x170
[ 6768.159754][   T73]      __sys_sendmsg+0xcd/0x170
[ 6768.159754][   T73]      do_syscall_64+0xc6/0x1e0
[ 6768.159754][   T73] 
[ 6768.161719][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6768.161719][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6768.161719][   T73]      ipv6_find_idev+0x102/0x170
[ 6768.161719][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6768.161719][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6768.161719][   T73]      netlink_rcv_skb+0x130/0x360
[ 6768.161719][   T73]      netlink_unicast+0x449/0x710
[ 6768.161719][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6768.161719][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6768.161719][   T73]      ___sys_sendmsg+0xee/0x170
[ 6768.161719][   T73]      __sys_sendmsg+0xcd/0x170
[ 6768.161719][   T73]      do_syscall_64+0xc6/0x1e0
[ 6768.161719][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6768.161719][   T73] 
[ 6768.163271][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6768.163271][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6768.163271][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6768.163271][   T73]      ipv6_find_idev+0x102/0x170
[ 6768.163271][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6768.163271][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6768.163271][   T73]      netlink_rcv_skb+0x130/0x360
[ 6768.163271][   T73]      netlink_unicast+0x449/0x710
[ 6768.163271][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6768.163271][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6768.163271][   T73]      ___sys_sendmsg+0xee/0x170
[ 6768.163271][   T73]      __sys_sendmsg+0xcd/0x170
[ 6768.163271][   T73]      do_syscall_64+0xc6/0x1e0
[ 6768.163271][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6768.163271][   T73] 
[ 6768.164969][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6768.165250][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6768.165250][   T73]      netdev_get_by_index+0x5e/0x80
[ 6768.165250][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6768.165250][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6768.165250][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6768.165250][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6768.165250][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6768.165250][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6768.165250][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6768.165250][   T73]      addrconf_dad_begin+0x310/0x670
[ 6768.165250][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6768.165250][   T73]      process_one_work+0x84d/0x18a0
[ 6768.165250][   T73]      worker_thread+0x587/0xd30
[ 6768.165250][   T73]      kthread+0x28a/0x350
[ 6768.165250][   T73]      ret_from_fork+0x31/0x70
[ 6768.165250][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6768.165250][   T73] 
[ 6768.167169][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6768.167169][   T73]      netdev_get_by_index+0x5e/0x80
[ 6768.167169][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6768.167169][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6768.167169][   T73]      ip6_route_add+0x1c/0x140
[ 6768.167169][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6768.167169][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6768.167169][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6768.167169][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6768.167169][   T73]      netlink_rcv_skb+0x130/0x360
[ 6768.167169][   T73]      netlink_unicast+0x449/0x710
[ 6768.167169][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6768.167169][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6768.167169][   T73]      ___sys_sendmsg+0xee/0x170
[ 6768.167169][   T73]      __sys_sendmsg+0xcd/0x170
[ 6768.167169][   T73]      do_syscall_64+0xc6/0x1e0
[ 6768.167169][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6768.167169][   T73] 
[ 6768.171307][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6768.171307][   T73]      netdev_get_by_index+0x5e/0x80
[ 6768.171307][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6768.171307][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6768.171307][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6768.171307][   T73]      ipv6_add_addr+0x411/0x2000
[ 6768.171307][   T73]      inet6_addr_add+0x30e/0xa40
[ 6768.171307][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6768.171307][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6768.171307][   T73]      netlink_rcv_skb+0x130/0x360
[ 6768.171307][   T73]      netlink_unicast+0x449/0x710
[ 6768.171307][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6768.171307][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6768.171307][   T73]      ___sys_sendmsg+0xee/0x170
[ 6768.171307][   T73]      __sys_sendmsg+0xcd/0x170
[ 6768.171307][   T73]      do_syscall_64+0xc6/0x1e0
[ 6768.171307][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6768.171307][   T73] 
[ 6768.173338][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6768.173338][   T73]      netdev_get_by_index+0x5e/0x80
[ 6768.173338][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6768.173338][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6768.173338][   T73]      ip6_route_add+0x1c/0x140
[ 6768.173338][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6768.173338][   T73]      addrconf_add_dev+0xe2/0x170
[ 6768.173338][   T73]      inet6_addr_add+0x12f/0xa40
[ 6768.173338][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6768.173338][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6768.173338][   T73]      netlink_rcv_skb+0x130/0x360
[ 6768.173338][   T73]      netlink_unicast+0x449/0x710
[ 6768.173338][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6768.173338][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6768.173338][   T73]      ___sys_sendmsg+0xee/0x170
[ 6768.173338][   T73]      __sys_sendmsg+0xcd/0x170
[ 6768.173338][   T73]      do_syscall_64+0xc6/0x1e0
[ 6768.173338][   T73] 
[ 6768.175320][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6768.175320][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6768.175320][   T73]      ipv6_find_idev+0x102/0x170
[ 6768.175320][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6768.175320][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6768.175320][   T73]      netlink_rcv_skb+0x130/0x360
[ 6768.175320][   T73]      netlink_unicast+0x449/0x710
[ 6768.175320][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6768.175320][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6768.175320][   T73]      ___sys_sendmsg+0xee/0x170
[ 6768.175320][   T73]      __sys_sendmsg+0xcd/0x170
[ 6768.175320][   T73]      do_syscall_64+0xc6/0x1e0
[ 6768.175320][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6768.175320][   T73] 
[ 6768.176872][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6768.176872][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6768.176872][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6768.176872][   T73]      ipv6_find_idev+0x102/0x170
[ 6768.176872][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6768.176872][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6768.176872][   T73]      netlink_rcv_skb+0x130/0x360
[ 6768.176872][   T73]      netlink_unicast+0x449/0x710
[ 6768.176872][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6768.176872][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6768.176872][   T73]      ___sys_sendmsg+0xee/0x170
[ 6768.176872][   T73]      __sys_sendmsg+0xcd/0x170
[ 6768.176872][   T73]      do_syscall_64+0xc6/0x1e0
[ 6768.176872][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6768.176872][   T73] 
[ 6768.178569][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6768.178856][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6768.178856][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6768.178856][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6768.178856][   T73]      fib6_nh_init+0xa22/0x1580
[ 6768.178856][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6768.178856][   T73]      ip6_route_add+0x1c/0x140
[ 6768.178856][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6768.178856][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6768.178856][   T73]      netlink_rcv_skb+0x130/0x360
[ 6768.178856][   T73]      netlink_unicast+0x449/0x710
[ 6768.178856][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6768.178856][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6768.178856][   T73]      ___sys_sendmsg+0xee/0x170
[ 6768.178856][   T73]      __sys_sendmsg+0xcd/0x170
[ 6768.178856][   T73]      do_syscall_64+0xc6/0x1e0
[ 6768.178856][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6768.178856][   T73] 
[ 6768.180935][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6768.180935][   T73]      dst_init+0x84/0x4a0
[ 6768.180935][   T73]      dst_alloc+0x97/0x150
[ 6768.180935][   T73]      ip6_dst_alloc+0x23/0x90
[ 6768.180935][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6768.180935][   T73]      ip6_pol_route+0x56f/0x840
[ 6768.180935][   T73]      fib6_rule_lookup+0x456/0x630
[ 6768.180935][   T73]      ip6_route_input+0x59c/0xa50
[ 6768.180935][   T73]      ipv6_rcv+0x397/0x810
[ 6768.180935][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6768.180935][   T73]      process_backlog+0x101/0x620
[ 6768.180935][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6768.180935][   T73]      net_rx_action+0x495/0xbe0
[ 6768.180935][   T73]      __do_softirq+0x1b5/0x7f6
[ 6768.180935][   T73] 
[ 6768.182767][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6768.182767][   T73]      netdev_get_by_index+0x5e/0x80
[ 6768.182767][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6768.182767][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6768.182767][   T73]      ip6_route_add+0x1c/0x140
[ 6768.182767][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6768.182767][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6768.182767][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6768.182767][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6768.182767][   T73]      netlink_rcv_skb+0x130/0x360
[ 6768.182767][   T73]      netlink_unicast+0x449/0x710
[ 6768.182767][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6768.182767][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6768.182767][   T73]      ___sys_sendmsg+0xee/0x170
[ 6768.182767][   T73]      __sys_sendmsg+0xcd/0x170
[ 6768.182767][   T73]      do_syscall_64+0xc6/0x1e0
[ 6768.182767][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6768.182767][   T73] 
[ 6768.185109][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6768.185109][   T73]      netdev_get_by_index+0x5e/0x80
[ 6768.185109][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6768.185109][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6768.185109][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6768.185109][   T73]      ipv6_add_addr+0x411/0x2000
[ 6768.185109][   T73]      inet6_addr_add+0x30e/0xa40
[ 6768.185109][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6768.185109][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6768.185109][   T73]      netlink_rcv_skb+0x130/0x360
[ 6768.185109][   T73]      netlink_unicast+0x449/0x710
[ 6768.185109][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6768.185109][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6768.185109][   T73]      ___sys_sendmsg+0xee/0x170
[ 6768.185109][   T73]      __sys_sendmsg+0xcd/0x170
[ 6768.185109][   T73]      do_syscall_64+0xc6/0x1e0
[ 6768.185109][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6768.185109][   T73] 
[ 6768.187375][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6768.187375][   T73]      netdev_get_by_index+0x5e/0x80
[ 6768.187375][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6768.187375][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6768.187375][   T73]      ip6_route_add+0x1c/0x140
[ 6768.187375][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6768.187375][   T73]      addrconf_add_dev+0xe2/0x170
[ 6768.187375][   T73]      inet6_addr_add+0x12f/0xa40
[ 6768.187375][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6768.187375][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6768.187375][   T73]      netlink_rcv_skb+0x130/0x360
[ 6768.187375][   T73]      netlink_unicast+0x449/0x710
[ 6768.187375][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6768.187375][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6768.187375][   T73]      ___sys_sendmsg+0xee/0x170
[ 6768.187375][   T73]      __sys_sendmsg+0xcd/0x170
[ 6768.187375][   T73]      do_syscall_64+0xc6/0x1e0
[ 6768.187375][   T73] 
[ 6768.189524][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6768.189524][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6768.189524][   T73]      ipv6_find_idev+0x102/0x170
[ 6768.189524][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6768.189524][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6768.189524][   T73]      netlink_rcv_skb+0x130/0x360
[ 6768.189524][   T73]      netlink_unicast+0x449/0x710
[ 6768.189524][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6768.189524][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6768.189524][   T73]      ___sys_sendmsg+0xee/0x170
[ 6768.189524][   T73]      __sys_sendmsg+0xcd/0x170
[ 6768.189524][   T73]      do_syscall_64+0xc6/0x1e0
[ 6768.189524][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6768.189524][   T73] 
[ 6768.191259][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6768.191259][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6768.191259][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6768.191259][   T73]      ipv6_find_idev+0x102/0x170
[ 6768.191259][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6768.191259][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6768.191259][   T73]      netlink_rcv_skb+0x130/0x360
[ 6768.191259][   T73]      netlink_unicast+0x449/0x710
[ 6768.191259][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6768.191259][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6768.191259][   T73]      ___sys_sendmsg+0xee/0x170
[ 6768.191259][   T73]      __sys_sendmsg+0xcd/0x170
[ 6768.191259][   T73]      do_syscall_64+0xc6/0x1e0
[ 6768.191259][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6768.191259][   T73] 
[ 6768.193243][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6768.193519][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6768.193519][   T73]      netdev_get_by_index+0x5e/0x80
[ 6768.193519][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6768.193519][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6768.193519][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6768.193519][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6768.193519][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6768.193519][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6768.193519][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6768.193519][   T73]      addrconf_dad_begin+0x310/0x670
[ 6768.193519][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6768.193519][   T73]      process_one_work+0x84d/0x18a0
[ 6768.193519][   T73]      worker_thread+0x587/0xd30
[ 6768.193519][   T73]      kthread+0x28a/0x350
[ 6768.193519][   T73]      ret_from_fork+0x31/0x70
[ 6768.193519][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6768.193519][   T73] 
[ 6768.195688][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6768.195688][   T73]      netdev_get_by_index+0x5e/0x80
[ 6768.195688][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6768.195688][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6768.195688][   T73]      ip6_route_add+0x1c/0x140
[ 6768.195688][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6768.195688][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6768.195688][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6768.195688][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6768.195688][   T73]      netlink_rcv_skb+0x130/0x360
[ 6768.195688][   T73]      netlink_unicast+0x449/0x710
[ 6768.195688][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6768.195688][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6768.195688][   T73]      ___sys_sendmsg+0xee/0x170
[ 6768.195688][   T73]      __sys_sendmsg+0xcd/0x170
[ 6768.195688][   T73]      do_syscall_64+0xc6/0x1e0
[ 6768.195688][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6768.195688][   T73] 
[ 6768.197894][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6768.197894][   T73]      netdev_get_by_index+0x5e/0x80
[ 6768.197894][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6768.197894][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6768.197894][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6768.197894][   T73]      ipv6_add_addr+0x411/0x2000
[ 6768.197894][   T73]      inet6_addr_add+0x30e/0xa40
[ 6768.197894][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6768.197894][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6768.197894][   T73]      netlink_rcv_skb+0x130/0x360
[ 6768.197894][   T73]      netlink_unicast+0x449/0x710
[ 6768.197894][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6768.197894][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6768.197894][   T73]      ___sys_sendmsg+0xee/0x170
[ 6768.197894][   T73]      __sys_sendmsg+0xcd/0x170
[ 6768.197894][   T73]      do_syscall_64+0xc6/0x1e0
[ 6768.197894][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6768.197894][   T73] 
[ 6768.200661][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6768.200661][   T73]      netdev_get_by_index+0x5e/0x80
[ 6768.200661][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6768.200661][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6768.200661][   T73]      ip6_route_add+0x1c/0x140
[ 6768.200661][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6768.200661][   T73]      addrconf_add_dev+0xe2/0x170
[ 6768.200661][   T73]      inet6_addr_add+0x12f/0xa40
[ 6768.200661][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6768.200661][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6768.200661][   T73]      netlink_rcv_skb+0x130/0x360
[ 6768.200661][   T73]      netlink_unicast+0x449/0x710
[ 6768.200661][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6768.200661][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6768.200661][   T73]      ___sys_sendmsg+0xee/0x170
[ 6768.200661][   T73]      __sys_sendmsg+0xcd/0x170
[ 6768.200661][   T73]      do_syscall_64+0xc6/0x1e0
[ 6768.200661][   T73] 
[ 6768.202879][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6768.202879][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6768.202879][   T73]      ipv6_find_idev+0x102/0x170
[ 6768.202879][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6768.202879][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6768.202879][   T73]      netlink_rcv_skb+0x130/0x360
[ 6768.202879][   T73]      netlink_unicast+0x449/0x710
[ 6768.202879][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6768.202879][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6768.202879][   T73]      ___sys_sendmsg+0xee/0x170
[ 6768.202879][   T73]      __sys_sendmsg+0xcd/0x170
[ 6768.202879][   T73]      do_syscall_64+0xc6/0x1e0
[ 6768.202879][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6768.202879][   T73] 
[ 6768.204689][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6768.204689][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6768.204689][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6768.204689][   T73]      ipv6_find_idev+0x102/0x170
[ 6768.204689][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6768.204689][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6768.204689][   T73]      netlink_rcv_skb+0x130/0x360
[ 6768.204689][   T73]      netlink_unicast+0x449/0x710
[ 6768.204689][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6768.204689][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6768.204689][   T73]      ___sys_sendmsg+0xee/0x170
[ 6768.204689][   T73]      __sys_sendmsg+0xcd/0x170
[ 6768.204689][   T73]      do_syscall_64+0xc6/0x1e0
[ 6768.204689][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6768.204689][   T73] 
[ 6778.447754][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6778.448175][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6778.448175][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6778.448175][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6778.448175][   T73]      fib6_nh_init+0xa22/0x1580
[ 6778.448175][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6778.448175][   T73]      ip6_route_add+0x1c/0x140
[ 6778.448175][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6778.448175][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6778.448175][   T73]      netlink_rcv_skb+0x130/0x360
[ 6778.448175][   T73]      netlink_unicast+0x449/0x710
[ 6778.448175][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6778.448175][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6778.448175][   T73]      ___sys_sendmsg+0xee/0x170
[ 6778.448175][   T73]      __sys_sendmsg+0xcd/0x170
[ 6778.448175][   T73]      do_syscall_64+0xc6/0x1e0
[ 6778.448175][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6778.448175][   T73] 
[ 6778.450209][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6778.450209][   T73]      dst_init+0x84/0x4a0
[ 6778.450209][   T73]      dst_alloc+0x97/0x150
[ 6778.450209][   T73]      ip6_dst_alloc+0x23/0x90
[ 6778.450209][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6778.450209][   T73]      ip6_pol_route+0x56f/0x840
[ 6778.450209][   T73]      fib6_rule_lookup+0x456/0x630
[ 6778.450209][   T73]      ip6_route_input+0x59c/0xa50
[ 6778.450209][   T73]      ipv6_rcv+0x397/0x810
[ 6778.450209][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6778.450209][   T73]      process_backlog+0x101/0x620
[ 6778.450209][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6778.450209][   T73]      net_rx_action+0x495/0xbe0
[ 6778.450209][   T73]      __do_softirq+0x1b5/0x7f6
[ 6778.450209][   T73] 
[ 6778.451867][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6778.451867][   T73]      netdev_get_by_index+0x5e/0x80
[ 6778.451867][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6778.451867][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6778.451867][   T73]      ip6_route_add+0x1c/0x140
[ 6778.451867][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6778.451867][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6778.451867][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6778.451867][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6778.451867][   T73]      netlink_rcv_skb+0x130/0x360
[ 6778.451867][   T73]      netlink_unicast+0x449/0x710
[ 6778.451867][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6778.451867][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6778.451867][   T73]      ___sys_sendmsg+0xee/0x170
[ 6778.451867][   T73]      __sys_sendmsg+0xcd/0x170
[ 6778.451867][   T73]      do_syscall_64+0xc6/0x1e0
[ 6778.451867][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6778.451867][   T73] 
[ 6778.454565][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6778.454565][   T73]      netdev_get_by_index+0x5e/0x80
[ 6778.454565][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6778.454565][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6778.454565][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6778.454565][   T73]      ipv6_add_addr+0x411/0x2000
[ 6778.454565][   T73]      inet6_addr_add+0x30e/0xa40
[ 6778.454565][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6778.454565][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6778.454565][   T73]      netlink_rcv_skb+0x130/0x360
[ 6778.454565][   T73]      netlink_unicast+0x449/0x710
[ 6778.454565][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6778.454565][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6778.454565][   T73]      ___sys_sendmsg+0xee/0x170
[ 6778.454565][   T73]      __sys_sendmsg+0xcd/0x170
[ 6778.454565][   T73]      do_syscall_64+0xc6/0x1e0
[ 6778.454565][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6778.454565][   T73] 
[ 6778.457204][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6778.457204][   T73]      netdev_get_by_index+0x5e/0x80
[ 6778.457204][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6778.457204][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6778.457204][   T73]      ip6_route_add+0x1c/0x140
[ 6778.457204][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6778.457204][   T73]      addrconf_add_dev+0xe2/0x170
[ 6778.457204][   T73]      inet6_addr_add+0x12f/0xa40
[ 6778.457204][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6778.457204][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6778.457204][   T73]      netlink_rcv_skb+0x130/0x360
[ 6778.457204][   T73]      netlink_unicast+0x449/0x710
[ 6778.457204][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6778.457204][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6778.457204][   T73]      ___sys_sendmsg+0xee/0x170
[ 6778.457204][   T73]      __sys_sendmsg+0xcd/0x170
[ 6778.457204][   T73]      do_syscall_64+0xc6/0x1e0
[ 6778.457204][   T73] 
[ 6778.459207][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6778.459207][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6778.459207][   T73]      ipv6_find_idev+0x102/0x170
[ 6778.459207][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6778.459207][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6778.459207][   T73]      netlink_rcv_skb+0x130/0x360
[ 6778.459207][   T73]      netlink_unicast+0x449/0x710
[ 6778.459207][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6778.459207][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6778.459207][   T73]      ___sys_sendmsg+0xee/0x170
[ 6778.459207][   T73]      __sys_sendmsg+0xcd/0x170
[ 6778.459207][   T73]      do_syscall_64+0xc6/0x1e0
[ 6778.459207][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6778.459207][   T73] 
[ 6778.460770][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6778.460770][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6778.460770][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6778.460770][   T73]      ipv6_find_idev+0x102/0x170
[ 6778.460770][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6778.460770][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6778.460770][   T73]      netlink_rcv_skb+0x130/0x360
[ 6778.460770][   T73]      netlink_unicast+0x449/0x710
[ 6778.460770][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6778.460770][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6778.460770][   T73]      ___sys_sendmsg+0xee/0x170
[ 6778.460770][   T73]      __sys_sendmsg+0xcd/0x170
[ 6778.460770][   T73]      do_syscall_64+0xc6/0x1e0
[ 6778.460770][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6778.460770][   T73] 
[ 6778.462515][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6778.462810][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6778.462810][   T73]      netdev_get_by_index+0x5e/0x80
[ 6778.462810][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6778.462810][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6778.462810][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6778.462810][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6778.462810][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6778.462810][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6778.462810][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6778.462810][   T73]      addrconf_dad_begin+0x310/0x670
[ 6778.462810][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6778.462810][   T73]      process_one_work+0x84d/0x18a0
[ 6778.462810][   T73]      worker_thread+0x587/0xd30
[ 6778.462810][   T73]      kthread+0x28a/0x350
[ 6778.462810][   T73]      ret_from_fork+0x31/0x70
[ 6778.462810][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6778.462810][   T73] 
[ 6778.464768][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6778.464768][   T73]      netdev_get_by_index+0x5e/0x80
[ 6778.464768][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6778.464768][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6778.464768][   T73]      ip6_route_add+0x1c/0x140
[ 6778.464768][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6778.464768][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6778.464768][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6778.464768][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6778.464768][   T73]      netlink_rcv_skb+0x130/0x360
[ 6778.464768][   T73]      netlink_unicast+0x449/0x710
[ 6778.464768][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6778.464768][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6778.464768][   T73]      ___sys_sendmsg+0xee/0x170
[ 6778.464768][   T73]      __sys_sendmsg+0xcd/0x170
[ 6778.464768][   T73]      do_syscall_64+0xc6/0x1e0
[ 6778.464768][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6778.464768][   T73] 
[ 6778.466803][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6778.466803][   T73]      netdev_get_by_index+0x5e/0x80
[ 6778.466803][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6778.466803][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6778.466803][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6778.466803][   T73]      ipv6_add_addr+0x411/0x2000
[ 6778.466803][   T73]      inet6_addr_add+0x30e/0xa40
[ 6778.466803][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6778.466803][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6778.466803][   T73]      netlink_rcv_skb+0x130/0x360
[ 6778.466803][   T73]      netlink_unicast+0x449/0x710
[ 6778.466803][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6778.466803][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6778.466803][   T73]      ___sys_sendmsg+0xee/0x170
[ 6778.466803][   T73]      __sys_sendmsg+0xcd/0x170
[ 6778.466803][   T73]      do_syscall_64+0xc6/0x1e0
[ 6778.466803][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6778.466803][   T73] 
[ 6778.468848][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6778.468848][   T73]      netdev_get_by_index+0x5e/0x80
[ 6778.468848][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6778.468848][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6778.468848][   T73]      ip6_route_add+0x1c/0x140
[ 6778.468848][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6778.468848][   T73]      addrconf_add_dev+0xe2/0x170
[ 6778.468848][   T73]      inet6_addr_add+0x12f/0xa40
[ 6778.468848][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6778.468848][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6778.468848][   T73]      netlink_rcv_skb+0x130/0x360
[ 6778.468848][   T73]      netlink_unicast+0x449/0x710
[ 6778.468848][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6778.468848][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6778.468848][   T73]      ___sys_sendmsg+0xee/0x170
[ 6778.468848][   T73]      __sys_sendmsg+0xcd/0x170
[ 6778.468848][   T73]      do_syscall_64+0xc6/0x1e0
[ 6778.468848][   T73] 
[ 6778.470840][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6778.470840][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6778.470840][   T73]      ipv6_find_idev+0x102/0x170
[ 6778.470840][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6778.470840][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6778.470840][   T73]      netlink_rcv_skb+0x130/0x360
[ 6778.470840][   T73]      netlink_unicast+0x449/0x710
[ 6778.470840][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6778.470840][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6778.470840][   T73]      ___sys_sendmsg+0xee/0x170
[ 6778.470840][   T73]      __sys_sendmsg+0xcd/0x170
[ 6778.470840][   T73]      do_syscall_64+0xc6/0x1e0
[ 6778.470840][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6778.470840][   T73] 
[ 6778.472408][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6778.472408][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6778.472408][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6778.472408][   T73]      ipv6_find_idev+0x102/0x170
[ 6778.472408][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6778.472408][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6778.472408][   T73]      netlink_rcv_skb+0x130/0x360
[ 6778.472408][   T73]      netlink_unicast+0x449/0x710
[ 6778.472408][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6778.472408][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6778.472408][   T73]      ___sys_sendmsg+0xee/0x170
[ 6778.472408][   T73]      __sys_sendmsg+0xcd/0x170
[ 6778.472408][   T73]      do_syscall_64+0xc6/0x1e0
[ 6778.472408][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6778.472408][   T73] 
[ 6778.474139][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6778.474416][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6778.474416][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6778.474416][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6778.474416][   T73]      fib6_nh_init+0xa22/0x1580
[ 6778.474416][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6778.474416][   T73]      ip6_route_add+0x1c/0x140
[ 6778.474416][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6778.474416][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6778.474416][   T73]      netlink_rcv_skb+0x130/0x360
[ 6778.474416][   T73]      netlink_unicast+0x449/0x710
[ 6778.474416][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6778.474416][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6778.474416][   T73]      ___sys_sendmsg+0xee/0x170
[ 6778.474416][   T73]      __sys_sendmsg+0xcd/0x170
[ 6778.474416][   T73]      do_syscall_64+0xc6/0x1e0
[ 6778.474416][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6778.474416][   T73] 
[ 6778.476514][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6778.476514][   T73]      dst_init+0x84/0x4a0
[ 6778.476514][   T73]      dst_alloc+0x97/0x150
[ 6778.476514][   T73]      ip6_dst_alloc+0x23/0x90
[ 6778.476514][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6778.476514][   T73]      ip6_pol_route+0x56f/0x840
[ 6778.476514][   T73]      fib6_rule_lookup+0x456/0x630
[ 6778.476514][   T73]      ip6_route_input+0x59c/0xa50
[ 6778.476514][   T73]      ipv6_rcv+0x397/0x810
[ 6778.476514][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6778.476514][   T73]      process_backlog+0x101/0x620
[ 6778.476514][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6778.476514][   T73]      net_rx_action+0x495/0xbe0
[ 6778.476514][   T73]      __do_softirq+0x1b5/0x7f6
[ 6778.476514][   T73] 
[ 6778.478372][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6778.478372][   T73]      netdev_get_by_index+0x5e/0x80
[ 6778.478372][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6778.478372][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6778.478372][   T73]      ip6_route_add+0x1c/0x140
[ 6778.478372][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6778.478372][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6778.478372][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6778.478372][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6778.478372][   T73]      netlink_rcv_skb+0x130/0x360
[ 6778.478372][   T73]      netlink_unicast+0x449/0x710
[ 6778.478372][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6778.478372][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6778.478372][   T73]      ___sys_sendmsg+0xee/0x170
[ 6778.478372][   T73]      __sys_sendmsg+0xcd/0x170
[ 6778.478372][   T73]      do_syscall_64+0xc6/0x1e0
[ 6778.478372][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6778.478372][   T73] 
[ 6778.480656][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6778.480656][   T73]      netdev_get_by_index+0x5e/0x80
[ 6778.480656][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6778.480656][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6778.480656][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6778.480656][   T73]      ipv6_add_addr+0x411/0x2000
[ 6778.480656][   T73]      inet6_addr_add+0x30e/0xa40
[ 6778.480656][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6778.480656][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6778.480656][   T73]      netlink_rcv_skb+0x130/0x360
[ 6778.480656][   T73]      netlink_unicast+0x449/0x710
[ 6778.480656][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6778.480656][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6778.480656][   T73]      ___sys_sendmsg+0xee/0x170
[ 6778.480656][   T73]      __sys_sendmsg+0xcd/0x170
[ 6778.480656][   T73]      do_syscall_64+0xc6/0x1e0
[ 6778.480656][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6778.480656][   T73] 
[ 6778.482917][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6778.482917][   T73]      netdev_get_by_index+0x5e/0x80
[ 6778.482917][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6778.482917][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6778.482917][   T73]      ip6_route_add+0x1c/0x140
[ 6778.482917][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6778.482917][   T73]      addrconf_add_dev+0xe2/0x170
[ 6778.482917][   T73]      inet6_addr_add+0x12f/0xa40
[ 6778.482917][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6778.482917][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6778.482917][   T73]      netlink_rcv_skb+0x130/0x360
[ 6778.482917][   T73]      netlink_unicast+0x449/0x710
[ 6778.482917][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6778.482917][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6778.482917][   T73]      ___sys_sendmsg+0xee/0x170
[ 6778.482917][   T73]      __sys_sendmsg+0xcd/0x170
[ 6778.482917][   T73]      do_syscall_64+0xc6/0x1e0
[ 6778.482917][   T73] 
[ 6778.485239][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6778.485239][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6778.485239][   T73]      ipv6_find_idev+0x102/0x170
[ 6778.485239][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6778.485239][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6778.485239][   T73]      netlink_rcv_skb+0x130/0x360
[ 6778.485239][   T73]      netlink_unicast+0x449/0x710
[ 6778.485239][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6778.485239][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6778.485239][   T73]      ___sys_sendmsg+0xee/0x170
[ 6778.485239][   T73]      __sys_sendmsg+0xcd/0x170
[ 6778.485239][   T73]      do_syscall_64+0xc6/0x1e0
[ 6778.485239][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6778.485239][   T73] 
[ 6778.486976][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6778.486976][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6778.486976][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6778.486976][   T73]      ipv6_find_idev+0x102/0x170
[ 6778.486976][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6778.486976][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6778.486976][   T73]      netlink_rcv_skb+0x130/0x360
[ 6778.486976][   T73]      netlink_unicast+0x449/0x710
[ 6778.486976][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6778.486976][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6778.486976][   T73]      ___sys_sendmsg+0xee/0x170
[ 6778.486976][   T73]      __sys_sendmsg+0xcd/0x170
[ 6778.486976][   T73]      do_syscall_64+0xc6/0x1e0
[ 6778.486976][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6778.486976][   T73] 
[ 6778.488866][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6778.489146][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6778.489146][   T73]      netdev_get_by_index+0x5e/0x80
[ 6778.489146][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6778.489146][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6778.489146][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6778.489146][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6778.489146][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6778.489146][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6778.489146][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6778.489146][   T73]      addrconf_dad_begin+0x310/0x670
[ 6778.489146][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6778.489146][   T73]      process_one_work+0x84d/0x18a0
[ 6778.489146][   T73]      worker_thread+0x587/0xd30
[ 6778.489146][   T73]      kthread+0x28a/0x350
[ 6778.489146][   T73]      ret_from_fork+0x31/0x70
[ 6778.489146][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6778.489146][   T73] 
[ 6778.491323][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6778.491323][   T73]      netdev_get_by_index+0x5e/0x80
[ 6778.491323][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6778.491323][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6778.491323][   T73]      ip6_route_add+0x1c/0x140
[ 6778.491323][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6778.491323][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6778.491323][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6778.491323][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6778.491323][   T73]      netlink_rcv_skb+0x130/0x360
[ 6778.491323][   T73]      netlink_unicast+0x449/0x710
[ 6778.491323][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6778.491323][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6778.491323][   T73]      ___sys_sendmsg+0xee/0x170
[ 6778.491323][   T73]      __sys_sendmsg+0xcd/0x170
[ 6778.491323][   T73]      do_syscall_64+0xc6/0x1e0
[ 6778.491323][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6778.491323][   T73] 
[ 6778.493595][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6778.493595][   T73]      netdev_get_by_index+0x5e/0x80
[ 6778.493595][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6778.493595][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6778.493595][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6778.493595][   T73]      ipv6_add_addr+0x411/0x2000
[ 6778.493595][   T73]      inet6_addr_add+0x30e/0xa40
[ 6778.493595][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6778.493595][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6778.493595][   T73]      netlink_rcv_skb+0x130/0x360
[ 6778.493595][   T73]      netlink_unicast+0x449/0x710
[ 6778.493595][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6778.493595][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6778.493595][   T73]      ___sys_sendmsg+0xee/0x170
[ 6778.493595][   T73]      __sys_sendmsg+0xcd/0x170
[ 6778.493595][   T73]      do_syscall_64+0xc6/0x1e0
[ 6778.493595][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6778.493595][   T73] 
[ 6778.495912][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6778.495912][   T73]      netdev_get_by_index+0x5e/0x80
[ 6778.495912][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6778.495912][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6778.495912][   T73]      ip6_route_add+0x1c/0x140
[ 6778.495912][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6778.495912][   T73]      addrconf_add_dev+0xe2/0x170
[ 6778.495912][   T73]      inet6_addr_add+0x12f/0xa40
[ 6778.495912][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6778.495912][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6778.495912][   T73]      netlink_rcv_skb+0x130/0x360
[ 6778.495912][   T73]      netlink_unicast+0x449/0x710
[ 6778.495912][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6778.495912][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6778.495912][   T73]      ___sys_sendmsg+0xee/0x170
[ 6778.495912][   T73]      __sys_sendmsg+0xcd/0x170
[ 6778.495912][   T73]      do_syscall_64+0xc6/0x1e0
[ 6778.495912][   T73] 
[ 6778.498072][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6778.498072][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6778.498072][   T73]      ipv6_find_idev+0x102/0x170
[ 6778.498072][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6778.498072][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6778.498072][   T73]      netlink_rcv_skb+0x130/0x360
[ 6778.498072][   T73]      netlink_unicast+0x449/0x710
[ 6778.498072][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6778.498072][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6778.498072][   T73]      ___sys_sendmsg+0xee/0x170
[ 6778.498072][   T73]      __sys_sendmsg+0xcd/0x170
[ 6778.498072][   T73]      do_syscall_64+0xc6/0x1e0
[ 6778.498072][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6778.498072][   T73] 
[ 6778.499807][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6778.499807][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6778.499807][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6778.499807][   T73]      ipv6_find_idev+0x102/0x170
[ 6778.499807][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6778.499807][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6778.499807][   T73]      netlink_rcv_skb+0x130/0x360
[ 6778.499807][   T73]      netlink_unicast+0x449/0x710
[ 6778.499807][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6778.499807][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6778.499807][   T73]      ___sys_sendmsg+0xee/0x170
[ 6778.499807][   T73]      __sys_sendmsg+0xcd/0x170
[ 6778.499807][   T73]      do_syscall_64+0xc6/0x1e0
[ 6778.499807][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6778.499807][   T73] 
[ 6788.743795][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6788.744204][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6788.744204][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6788.744204][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6788.744204][   T73]      fib6_nh_init+0xa22/0x1580
[ 6788.744204][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6788.744204][   T73]      ip6_route_add+0x1c/0x140
[ 6788.744204][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6788.744204][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6788.744204][   T73]      netlink_rcv_skb+0x130/0x360
[ 6788.744204][   T73]      netlink_unicast+0x449/0x710
[ 6788.744204][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6788.744204][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6788.744204][   T73]      ___sys_sendmsg+0xee/0x170
[ 6788.744204][   T73]      __sys_sendmsg+0xcd/0x170
[ 6788.744204][   T73]      do_syscall_64+0xc6/0x1e0
[ 6788.744204][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6788.744204][   T73] 
[ 6788.746122][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6788.746122][   T73]      dst_init+0x84/0x4a0
[ 6788.746122][   T73]      dst_alloc+0x97/0x150
[ 6788.746122][   T73]      ip6_dst_alloc+0x23/0x90
[ 6788.746122][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6788.746122][   T73]      ip6_pol_route+0x56f/0x840
[ 6788.746122][   T73]      fib6_rule_lookup+0x456/0x630
[ 6788.746122][   T73]      ip6_route_input+0x59c/0xa50
[ 6788.746122][   T73]      ipv6_rcv+0x397/0x810
[ 6788.746122][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6788.746122][   T73]      process_backlog+0x101/0x620
[ 6788.746122][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6788.746122][   T73]      net_rx_action+0x495/0xbe0
[ 6788.746122][   T73]      __do_softirq+0x1b5/0x7f6
[ 6788.746122][   T73] 
[ 6788.747784][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6788.747784][   T73]      netdev_get_by_index+0x5e/0x80
[ 6788.747784][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6788.747784][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6788.747784][   T73]      ip6_route_add+0x1c/0x140
[ 6788.747784][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6788.747784][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6788.747784][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6788.747784][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6788.747784][   T73]      netlink_rcv_skb+0x130/0x360
[ 6788.747784][   T73]      netlink_unicast+0x449/0x710
[ 6788.747784][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6788.747784][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6788.747784][   T73]      ___sys_sendmsg+0xee/0x170
[ 6788.747784][   T73]      __sys_sendmsg+0xcd/0x170
[ 6788.747784][   T73]      do_syscall_64+0xc6/0x1e0
[ 6788.747784][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6788.747784][   T73] 
[ 6788.749814][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6788.749814][   T73]      netdev_get_by_index+0x5e/0x80
[ 6788.749814][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6788.749814][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6788.749814][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6788.749814][   T73]      ipv6_add_addr+0x411/0x2000
[ 6788.749814][   T73]      inet6_addr_add+0x30e/0xa40
[ 6788.749814][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6788.749814][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6788.749814][   T73]      netlink_rcv_skb+0x130/0x360
[ 6788.749814][   T73]      netlink_unicast+0x449/0x710
[ 6788.749814][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6788.749814][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6788.749814][   T73]      ___sys_sendmsg+0xee/0x170
[ 6788.749814][   T73]      __sys_sendmsg+0xcd/0x170
[ 6788.749814][   T73]      do_syscall_64+0xc6/0x1e0
[ 6788.749814][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6788.749814][   T73] 
[ 6788.751841][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6788.751841][   T73]      netdev_get_by_index+0x5e/0x80
[ 6788.751841][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6788.751841][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6788.751841][   T73]      ip6_route_add+0x1c/0x140
[ 6788.751841][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6788.751841][   T73]      addrconf_add_dev+0xe2/0x170
[ 6788.751841][   T73]      inet6_addr_add+0x12f/0xa40
[ 6788.751841][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6788.751841][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6788.751841][   T73]      netlink_rcv_skb+0x130/0x360
[ 6788.751841][   T73]      netlink_unicast+0x449/0x710
[ 6788.751841][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6788.751841][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6788.751841][   T73]      ___sys_sendmsg+0xee/0x170
[ 6788.751841][   T73]      __sys_sendmsg+0xcd/0x170
[ 6788.751841][   T73]      do_syscall_64+0xc6/0x1e0
[ 6788.751841][   T73] 
[ 6788.753838][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6788.753838][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6788.753838][   T73]      ipv6_find_idev+0x102/0x170
[ 6788.753838][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6788.753838][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6788.753838][   T73]      netlink_rcv_skb+0x130/0x360
[ 6788.753838][   T73]      netlink_unicast+0x449/0x710
[ 6788.753838][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6788.753838][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6788.753838][   T73]      ___sys_sendmsg+0xee/0x170
[ 6788.753838][   T73]      __sys_sendmsg+0xcd/0x170
[ 6788.753838][   T73]      do_syscall_64+0xc6/0x1e0
[ 6788.753838][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6788.753838][   T73] 
[ 6788.755413][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6788.755413][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6788.755413][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6788.755413][   T73]      ipv6_find_idev+0x102/0x170
[ 6788.755413][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6788.755413][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6788.755413][   T73]      netlink_rcv_skb+0x130/0x360
[ 6788.755413][   T73]      netlink_unicast+0x449/0x710
[ 6788.755413][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6788.755413][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6788.755413][   T73]      ___sys_sendmsg+0xee/0x170
[ 6788.755413][   T73]      __sys_sendmsg+0xcd/0x170
[ 6788.755413][   T73]      do_syscall_64+0xc6/0x1e0
[ 6788.755413][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6788.755413][   T73] 
[ 6788.757158][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6788.757442][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6788.757442][   T73]      netdev_get_by_index+0x5e/0x80
[ 6788.757442][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6788.757442][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6788.757442][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6788.757442][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6788.757442][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6788.757442][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6788.757442][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6788.757442][   T73]      addrconf_dad_begin+0x310/0x670
[ 6788.757442][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6788.757442][   T73]      process_one_work+0x84d/0x18a0
[ 6788.757442][   T73]      worker_thread+0x587/0xd30
[ 6788.757442][   T73]      kthread+0x28a/0x350
[ 6788.757442][   T73]      ret_from_fork+0x31/0x70
[ 6788.757442][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6788.757442][   T73] 
[ 6788.759385][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6788.759385][   T73]      netdev_get_by_index+0x5e/0x80
[ 6788.759385][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6788.759385][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6788.759385][   T73]      ip6_route_add+0x1c/0x140
[ 6788.759385][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6788.759385][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6788.759385][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6788.759385][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6788.759385][   T73]      netlink_rcv_skb+0x130/0x360
[ 6788.759385][   T73]      netlink_unicast+0x449/0x710
[ 6788.759385][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6788.759385][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6788.759385][   T73]      ___sys_sendmsg+0xee/0x170
[ 6788.759385][   T73]      __sys_sendmsg+0xcd/0x170
[ 6788.759385][   T73]      do_syscall_64+0xc6/0x1e0
[ 6788.759385][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6788.759385][   T73] 
[ 6788.761418][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6788.761418][   T73]      netdev_get_by_index+0x5e/0x80
[ 6788.761418][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6788.761418][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6788.761418][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6788.761418][   T73]      ipv6_add_addr+0x411/0x2000
[ 6788.761418][   T73]      inet6_addr_add+0x30e/0xa40
[ 6788.761418][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6788.761418][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6788.761418][   T73]      netlink_rcv_skb+0x130/0x360
[ 6788.761418][   T73]      netlink_unicast+0x449/0x710
[ 6788.761418][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6788.761418][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6788.761418][   T73]      ___sys_sendmsg+0xee/0x170
[ 6788.761418][   T73]      __sys_sendmsg+0xcd/0x170
[ 6788.761418][   T73]      do_syscall_64+0xc6/0x1e0
[ 6788.761418][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6788.761418][   T73] 
[ 6788.763434][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6788.763434][   T73]      netdev_get_by_index+0x5e/0x80
[ 6788.763434][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6788.763434][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6788.763434][   T73]      ip6_route_add+0x1c/0x140
[ 6788.763434][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6788.763434][   T73]      addrconf_add_dev+0xe2/0x170
[ 6788.763434][   T73]      inet6_addr_add+0x12f/0xa40
[ 6788.763434][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6788.763434][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6788.763434][   T73]      netlink_rcv_skb+0x130/0x360
[ 6788.763434][   T73]      netlink_unicast+0x449/0x710
[ 6788.763434][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6788.763434][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6788.763434][   T73]      ___sys_sendmsg+0xee/0x170
[ 6788.763434][   T73]      __sys_sendmsg+0xcd/0x170
[ 6788.763434][   T73]      do_syscall_64+0xc6/0x1e0
[ 6788.763434][   T73] 
[ 6788.765414][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6788.765414][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6788.765414][   T73]      ipv6_find_idev+0x102/0x170
[ 6788.765414][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6788.765414][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6788.765414][   T73]      netlink_rcv_skb+0x130/0x360
[ 6788.765414][   T73]      netlink_unicast+0x449/0x710
[ 6788.765414][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6788.765414][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6788.765414][   T73]      ___sys_sendmsg+0xee/0x170
[ 6788.765414][   T73]      __sys_sendmsg+0xcd/0x170
[ 6788.765414][   T73]      do_syscall_64+0xc6/0x1e0
[ 6788.765414][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6788.765414][   T73] 
[ 6788.766966][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6788.766966][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6788.766966][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6788.766966][   T73]      ipv6_find_idev+0x102/0x170
[ 6788.766966][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6788.766966][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6788.766966][   T73]      netlink_rcv_skb+0x130/0x360
[ 6788.766966][   T73]      netlink_unicast+0x449/0x710
[ 6788.766966][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6788.766966][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6788.766966][   T73]      ___sys_sendmsg+0xee/0x170
[ 6788.766966][   T73]      __sys_sendmsg+0xcd/0x170
[ 6788.766966][   T73]      do_syscall_64+0xc6/0x1e0
[ 6788.766966][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6788.766966][   T73] 
[ 6788.768683][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6788.768955][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6788.768955][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6788.768955][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6788.768955][   T73]      fib6_nh_init+0xa22/0x1580
[ 6788.768955][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6788.768955][   T73]      ip6_route_add+0x1c/0x140
[ 6788.768955][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6788.768955][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6788.768955][   T73]      netlink_rcv_skb+0x130/0x360
[ 6788.768955][   T73]      netlink_unicast+0x449/0x710
[ 6788.768955][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6788.768955][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6788.768955][   T73]      ___sys_sendmsg+0xee/0x170
[ 6788.768955][   T73]      __sys_sendmsg+0xcd/0x170
[ 6788.768955][   T73]      do_syscall_64+0xc6/0x1e0
[ 6788.768955][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6788.768955][   T73] 
[ 6788.770983][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6788.770983][   T73]      dst_init+0x84/0x4a0
[ 6788.770983][   T73]      dst_alloc+0x97/0x150
[ 6788.770983][   T73]      ip6_dst_alloc+0x23/0x90
[ 6788.770983][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6788.770983][   T73]      ip6_pol_route+0x56f/0x840
[ 6788.770983][   T73]      fib6_rule_lookup+0x456/0x630
[ 6788.770983][   T73]      ip6_route_input+0x59c/0xa50
[ 6788.770983][   T73]      ipv6_rcv+0x397/0x810
[ 6788.770983][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6788.770983][   T73]      process_backlog+0x101/0x620
[ 6788.770983][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6788.770983][   T73]      net_rx_action+0x495/0xbe0
[ 6788.770983][   T73]      __do_softirq+0x1b5/0x7f6
[ 6788.770983][   T73] 
[ 6788.772754][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6788.772754][   T73]      netdev_get_by_index+0x5e/0x80
[ 6788.772754][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6788.772754][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6788.772754][   T73]      ip6_route_add+0x1c/0x140
[ 6788.772754][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6788.772754][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6788.772754][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6788.772754][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6788.772754][   T73]      netlink_rcv_skb+0x130/0x360
[ 6788.772754][   T73]      netlink_unicast+0x449/0x710
[ 6788.772754][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6788.772754][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6788.772754][   T73]      ___sys_sendmsg+0xee/0x170
[ 6788.772754][   T73]      __sys_sendmsg+0xcd/0x170
[ 6788.772754][   T73]      do_syscall_64+0xc6/0x1e0
[ 6788.772754][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6788.772754][   T73] 
[ 6788.774927][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6788.774927][   T73]      netdev_get_by_index+0x5e/0x80
[ 6788.774927][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6788.774927][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6788.774927][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6788.774927][   T73]      ipv6_add_addr+0x411/0x2000
[ 6788.774927][   T73]      inet6_addr_add+0x30e/0xa40
[ 6788.774927][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6788.774927][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6788.774927][   T73]      netlink_rcv_skb+0x130/0x360
[ 6788.774927][   T73]      netlink_unicast+0x449/0x710
[ 6788.774927][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6788.774927][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6788.774927][   T73]      ___sys_sendmsg+0xee/0x170
[ 6788.774927][   T73]      __sys_sendmsg+0xcd/0x170
[ 6788.774927][   T73]      do_syscall_64+0xc6/0x1e0
[ 6788.774927][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6788.774927][   T73] 
[ 6788.777062][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6788.777062][   T73]      netdev_get_by_index+0x5e/0x80
[ 6788.777062][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6788.777062][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6788.777062][   T73]      ip6_route_add+0x1c/0x140
[ 6788.777062][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6788.777062][   T73]      addrconf_add_dev+0xe2/0x170
[ 6788.777062][   T73]      inet6_addr_add+0x12f/0xa40
[ 6788.777062][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6788.777062][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6788.777062][   T73]      netlink_rcv_skb+0x130/0x360
[ 6788.777062][   T73]      netlink_unicast+0x449/0x710
[ 6788.777062][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6788.777062][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6788.777062][   T73]      ___sys_sendmsg+0xee/0x170
[ 6788.777062][   T73]      __sys_sendmsg+0xcd/0x170
[ 6788.777062][   T73]      do_syscall_64+0xc6/0x1e0
[ 6788.777062][   T73] 
[ 6788.779160][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6788.779160][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6788.779160][   T73]      ipv6_find_idev+0x102/0x170
[ 6788.779160][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6788.779160][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6788.779160][   T73]      netlink_rcv_skb+0x130/0x360
[ 6788.779160][   T73]      netlink_unicast+0x449/0x710
[ 6788.779160][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6788.779160][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6788.779160][   T73]      ___sys_sendmsg+0xee/0x170
[ 6788.779160][   T73]      __sys_sendmsg+0xcd/0x170
[ 6788.779160][   T73]      do_syscall_64+0xc6/0x1e0
[ 6788.779160][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6788.779160][   T73] 
[ 6788.780777][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6788.780777][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6788.780777][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6788.780777][   T73]      ipv6_find_idev+0x102/0x170
[ 6788.780777][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6788.780777][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6788.780777][   T73]      netlink_rcv_skb+0x130/0x360
[ 6788.780777][   T73]      netlink_unicast+0x449/0x710
[ 6788.780777][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6788.780777][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6788.780777][   T73]      ___sys_sendmsg+0xee/0x170
[ 6788.780777][   T73]      __sys_sendmsg+0xcd/0x170
[ 6788.780777][   T73]      do_syscall_64+0xc6/0x1e0
[ 6788.780777][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6788.780777][   T73] 
[ 6788.782602][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6788.783315][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6788.783315][   T73]      netdev_get_by_index+0x5e/0x80
[ 6788.783315][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6788.783315][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6788.783315][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6788.783315][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6788.783315][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6788.783315][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6788.783315][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6788.783315][   T73]      addrconf_dad_begin+0x310/0x670
[ 6788.783315][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6788.783315][   T73]      process_one_work+0x84d/0x18a0
[ 6788.783315][   T73]      worker_thread+0x587/0xd30
[ 6788.783315][   T73]      kthread+0x28a/0x350
[ 6788.783315][   T73]      ret_from_fork+0x31/0x70
[ 6788.783315][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6788.783315][   T73] 
[ 6788.785243][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6788.785243][   T73]      netdev_get_by_index+0x5e/0x80
[ 6788.785243][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6788.785243][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6788.785243][   T73]      ip6_route_add+0x1c/0x140
[ 6788.785243][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6788.785243][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6788.785243][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6788.785243][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6788.785243][   T73]      netlink_rcv_skb+0x130/0x360
[ 6788.785243][   T73]      netlink_unicast+0x449/0x710
[ 6788.785243][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6788.785243][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6788.785243][   T73]      ___sys_sendmsg+0xee/0x170
[ 6788.785243][   T73]      __sys_sendmsg+0xcd/0x170
[ 6788.785243][   T73]      do_syscall_64+0xc6/0x1e0
[ 6788.785243][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6788.785243][   T73] 
[ 6788.787311][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6788.787311][   T73]      netdev_get_by_index+0x5e/0x80
[ 6788.787311][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6788.787311][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6788.787311][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6788.787311][   T73]      ipv6_add_addr+0x411/0x2000
[ 6788.787311][   T73]      inet6_addr_add+0x30e/0xa40
[ 6788.787311][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6788.787311][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6788.787311][   T73]      netlink_rcv_skb+0x130/0x360
[ 6788.787311][   T73]      netlink_unicast+0x449/0x710
[ 6788.787311][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6788.787311][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6788.787311][   T73]      ___sys_sendmsg+0xee/0x170
[ 6788.787311][   T73]      __sys_sendmsg+0xcd/0x170
[ 6788.787311][   T73]      do_syscall_64+0xc6/0x1e0
[ 6788.787311][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6788.787311][   T73] 
[ 6788.789449][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6788.789449][   T73]      netdev_get_by_index+0x5e/0x80
[ 6788.789449][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6788.789449][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6788.789449][   T73]      ip6_route_add+0x1c/0x140
[ 6788.789449][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6788.789449][   T73]      addrconf_add_dev+0xe2/0x170
[ 6788.789449][   T73]      inet6_addr_add+0x12f/0xa40
[ 6788.789449][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6788.789449][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6788.789449][   T73]      netlink_rcv_skb+0x130/0x360
[ 6788.789449][   T73]      netlink_unicast+0x449/0x710
[ 6788.789449][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6788.789449][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6788.789449][   T73]      ___sys_sendmsg+0xee/0x170
[ 6788.789449][   T73]      __sys_sendmsg+0xcd/0x170
[ 6788.789449][   T73]      do_syscall_64+0xc6/0x1e0
[ 6788.789449][   T73] 
[ 6788.791541][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6788.791541][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6788.791541][   T73]      ipv6_find_idev+0x102/0x170
[ 6788.791541][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6788.791541][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6788.791541][   T73]      netlink_rcv_skb+0x130/0x360
[ 6788.791541][   T73]      netlink_unicast+0x449/0x710
[ 6788.791541][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6788.791541][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6788.791541][   T73]      ___sys_sendmsg+0xee/0x170
[ 6788.791541][   T73]      __sys_sendmsg+0xcd/0x170
[ 6788.791541][   T73]      do_syscall_64+0xc6/0x1e0
[ 6788.791541][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6788.791541][   T73] 
[ 6788.793242][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6788.793242][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6788.793242][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6788.793242][   T73]      ipv6_find_idev+0x102/0x170
[ 6788.793242][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6788.793242][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6788.793242][   T73]      netlink_rcv_skb+0x130/0x360
[ 6788.793242][   T73]      netlink_unicast+0x449/0x710
[ 6788.793242][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6788.793242][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6788.793242][   T73]      ___sys_sendmsg+0xee/0x170
[ 6788.793242][   T73]      __sys_sendmsg+0xcd/0x170
[ 6788.793242][   T73]      do_syscall_64+0xc6/0x1e0
[ 6788.793242][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6788.793242][   T73] 
[ 6799.015750][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6799.016219][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6799.016219][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6799.016219][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6799.016219][   T73]      fib6_nh_init+0xa22/0x1580
[ 6799.016219][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6799.016219][   T73]      ip6_route_add+0x1c/0x140
[ 6799.016219][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6799.016219][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6799.016219][   T73]      netlink_rcv_skb+0x130/0x360
[ 6799.016219][   T73]      netlink_unicast+0x449/0x710
[ 6799.016219][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6799.016219][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6799.016219][   T73]      ___sys_sendmsg+0xee/0x170
[ 6799.016219][   T73]      __sys_sendmsg+0xcd/0x170
[ 6799.016219][   T73]      do_syscall_64+0xc6/0x1e0
[ 6799.016219][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6799.016219][   T73] 
[ 6799.018165][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6799.018165][   T73]      dst_init+0x84/0x4a0
[ 6799.018165][   T73]      dst_alloc+0x97/0x150
[ 6799.018165][   T73]      ip6_dst_alloc+0x23/0x90
[ 6799.018165][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6799.018165][   T73]      ip6_pol_route+0x56f/0x840
[ 6799.018165][   T73]      fib6_rule_lookup+0x456/0x630
[ 6799.018165][   T73]      ip6_route_input+0x59c/0xa50
[ 6799.018165][   T73]      ipv6_rcv+0x397/0x810
[ 6799.018165][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6799.018165][   T73]      process_backlog+0x101/0x620
[ 6799.018165][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6799.018165][   T73]      net_rx_action+0x495/0xbe0
[ 6799.018165][   T73]      __do_softirq+0x1b5/0x7f6
[ 6799.018165][   T73] 
[ 6799.019819][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6799.019819][   T73]      netdev_get_by_index+0x5e/0x80
[ 6799.019819][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6799.019819][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6799.019819][   T73]      ip6_route_add+0x1c/0x140
[ 6799.019819][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6799.019819][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6799.019819][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6799.019819][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6799.019819][   T73]      netlink_rcv_skb+0x130/0x360
[ 6799.019819][   T73]      netlink_unicast+0x449/0x710
[ 6799.019819][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6799.019819][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6799.019819][   T73]      ___sys_sendmsg+0xee/0x170
[ 6799.019819][   T73]      __sys_sendmsg+0xcd/0x170
[ 6799.019819][   T73]      do_syscall_64+0xc6/0x1e0
[ 6799.019819][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6799.019819][   T73] 
[ 6799.021857][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6799.021857][   T73]      netdev_get_by_index+0x5e/0x80
[ 6799.021857][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6799.021857][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6799.021857][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6799.021857][   T73]      ipv6_add_addr+0x411/0x2000
[ 6799.021857][   T73]      inet6_addr_add+0x30e/0xa40
[ 6799.021857][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6799.021857][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6799.021857][   T73]      netlink_rcv_skb+0x130/0x360
[ 6799.021857][   T73]      netlink_unicast+0x449/0x710
[ 6799.021857][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6799.021857][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6799.021857][   T73]      ___sys_sendmsg+0xee/0x170
[ 6799.021857][   T73]      __sys_sendmsg+0xcd/0x170
[ 6799.021857][   T73]      do_syscall_64+0xc6/0x1e0
[ 6799.021857][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6799.021857][   T73] 
[ 6799.023902][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6799.023902][   T73]      netdev_get_by_index+0x5e/0x80
[ 6799.023902][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6799.023902][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6799.023902][   T73]      ip6_route_add+0x1c/0x140
[ 6799.023902][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6799.023902][   T73]      addrconf_add_dev+0xe2/0x170
[ 6799.023902][   T73]      inet6_addr_add+0x12f/0xa40
[ 6799.023902][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6799.023902][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6799.023902][   T73]      netlink_rcv_skb+0x130/0x360
[ 6799.023902][   T73]      netlink_unicast+0x449/0x710
[ 6799.023902][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6799.023902][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6799.023902][   T73]      ___sys_sendmsg+0xee/0x170
[ 6799.023902][   T73]      __sys_sendmsg+0xcd/0x170
[ 6799.023902][   T73]      do_syscall_64+0xc6/0x1e0
[ 6799.023902][   T73] 
[ 6799.025881][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6799.025881][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6799.025881][   T73]      ipv6_find_idev+0x102/0x170
[ 6799.025881][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6799.025881][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6799.025881][   T73]      netlink_rcv_skb+0x130/0x360
[ 6799.025881][   T73]      netlink_unicast+0x449/0x710
[ 6799.025881][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6799.025881][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6799.025881][   T73]      ___sys_sendmsg+0xee/0x170
[ 6799.025881][   T73]      __sys_sendmsg+0xcd/0x170
[ 6799.025881][   T73]      do_syscall_64+0xc6/0x1e0
[ 6799.025881][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6799.025881][   T73] 
[ 6799.027439][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6799.027439][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6799.027439][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6799.027439][   T73]      ipv6_find_idev+0x102/0x170
[ 6799.027439][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6799.027439][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6799.027439][   T73]      netlink_rcv_skb+0x130/0x360
[ 6799.027439][   T73]      netlink_unicast+0x449/0x710
[ 6799.027439][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6799.027439][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6799.027439][   T73]      ___sys_sendmsg+0xee/0x170
[ 6799.027439][   T73]      __sys_sendmsg+0xcd/0x170
[ 6799.027439][   T73]      do_syscall_64+0xc6/0x1e0
[ 6799.027439][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6799.027439][   T73] 
[ 6799.029200][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6799.029490][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6799.029490][   T73]      netdev_get_by_index+0x5e/0x80
[ 6799.029490][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6799.029490][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6799.029490][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6799.029490][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6799.029490][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6799.029490][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6799.029490][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6799.029490][   T73]      addrconf_dad_begin+0x310/0x670
[ 6799.029490][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6799.029490][   T73]      process_one_work+0x84d/0x18a0
[ 6799.029490][   T73]      worker_thread+0x587/0xd30
[ 6799.029490][   T73]      kthread+0x28a/0x350
[ 6799.029490][   T73]      ret_from_fork+0x31/0x70
[ 6799.029490][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6799.029490][   T73] 
[ 6799.031421][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6799.031421][   T73]      netdev_get_by_index+0x5e/0x80
[ 6799.031421][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6799.031421][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6799.031421][   T73]      ip6_route_add+0x1c/0x140
[ 6799.031421][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6799.031421][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6799.031421][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6799.031421][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6799.031421][   T73]      netlink_rcv_skb+0x130/0x360
[ 6799.031421][   T73]      netlink_unicast+0x449/0x710
[ 6799.031421][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6799.031421][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6799.031421][   T73]      ___sys_sendmsg+0xee/0x170
[ 6799.031421][   T73]      __sys_sendmsg+0xcd/0x170
[ 6799.031421][   T73]      do_syscall_64+0xc6/0x1e0
[ 6799.031421][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6799.031421][   T73] 
[ 6799.033452][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6799.033452][   T73]      netdev_get_by_index+0x5e/0x80
[ 6799.033452][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6799.033452][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6799.033452][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6799.033452][   T73]      ipv6_add_addr+0x411/0x2000
[ 6799.033452][   T73]      inet6_addr_add+0x30e/0xa40
[ 6799.033452][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6799.033452][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6799.033452][   T73]      netlink_rcv_skb+0x130/0x360
[ 6799.033452][   T73]      netlink_unicast+0x449/0x710
[ 6799.033452][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6799.033452][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6799.033452][   T73]      ___sys_sendmsg+0xee/0x170
[ 6799.033452][   T73]      __sys_sendmsg+0xcd/0x170
[ 6799.033452][   T73]      do_syscall_64+0xc6/0x1e0
[ 6799.033452][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6799.033452][   T73] 
[ 6799.035466][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6799.035466][   T73]      netdev_get_by_index+0x5e/0x80
[ 6799.035466][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6799.035466][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6799.035466][   T73]      ip6_route_add+0x1c/0x140
[ 6799.035466][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6799.035466][   T73]      addrconf_add_dev+0xe2/0x170
[ 6799.035466][   T73]      inet6_addr_add+0x12f/0xa40
[ 6799.035466][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6799.035466][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6799.035466][   T73]      netlink_rcv_skb+0x130/0x360
[ 6799.035466][   T73]      netlink_unicast+0x449/0x710
[ 6799.035466][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6799.035466][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6799.035466][   T73]      ___sys_sendmsg+0xee/0x170
[ 6799.035466][   T73]      __sys_sendmsg+0xcd/0x170
[ 6799.035466][   T73]      do_syscall_64+0xc6/0x1e0
[ 6799.035466][   T73] 
[ 6799.037447][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6799.037447][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6799.037447][   T73]      ipv6_find_idev+0x102/0x170
[ 6799.037447][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6799.037447][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6799.037447][   T73]      netlink_rcv_skb+0x130/0x360
[ 6799.037447][   T73]      netlink_unicast+0x449/0x710
[ 6799.037447][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6799.037447][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6799.037447][   T73]      ___sys_sendmsg+0xee/0x170
[ 6799.037447][   T73]      __sys_sendmsg+0xcd/0x170
[ 6799.037447][   T73]      do_syscall_64+0xc6/0x1e0
[ 6799.037447][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6799.037447][   T73] 
[ 6799.039001][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6799.039001][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6799.039001][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6799.039001][   T73]      ipv6_find_idev+0x102/0x170
[ 6799.039001][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6799.039001][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6799.039001][   T73]      netlink_rcv_skb+0x130/0x360
[ 6799.039001][   T73]      netlink_unicast+0x449/0x710
[ 6799.039001][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6799.039001][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6799.039001][   T73]      ___sys_sendmsg+0xee/0x170
[ 6799.039001][   T73]      __sys_sendmsg+0xcd/0x170
[ 6799.039001][   T73]      do_syscall_64+0xc6/0x1e0
[ 6799.039001][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6799.039001][   T73] 
[ 6799.040703][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6799.040982][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6799.040982][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6799.040982][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6799.040982][   T73]      fib6_nh_init+0xa22/0x1580
[ 6799.040982][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6799.040982][   T73]      ip6_route_add+0x1c/0x140
[ 6799.040982][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6799.040982][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6799.040982][   T73]      netlink_rcv_skb+0x130/0x360
[ 6799.040982][   T73]      netlink_unicast+0x449/0x710
[ 6799.040982][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6799.040982][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6799.040982][   T73]      ___sys_sendmsg+0xee/0x170
[ 6799.040982][   T73]      __sys_sendmsg+0xcd/0x170
[ 6799.040982][   T73]      do_syscall_64+0xc6/0x1e0
[ 6799.040982][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6799.040982][   T73] 
[ 6799.043013][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6799.043013][   T73]      dst_init+0x84/0x4a0
[ 6799.043013][   T73]      dst_alloc+0x97/0x150
[ 6799.043013][   T73]      ip6_dst_alloc+0x23/0x90
[ 6799.043013][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6799.043013][   T73]      ip6_pol_route+0x56f/0x840
[ 6799.043013][   T73]      fib6_rule_lookup+0x456/0x630
[ 6799.043013][   T73]      ip6_route_input+0x59c/0xa50
[ 6799.043013][   T73]      ipv6_rcv+0x397/0x810
[ 6799.043013][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6799.043013][   T73]      process_backlog+0x101/0x620
[ 6799.043013][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6799.043013][   T73]      net_rx_action+0x495/0xbe0
[ 6799.043013][   T73]      __do_softirq+0x1b5/0x7f6
[ 6799.043013][   T73] 
[ 6799.044935][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6799.044935][   T73]      netdev_get_by_index+0x5e/0x80
[ 6799.044935][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6799.044935][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6799.044935][   T73]      ip6_route_add+0x1c/0x140
[ 6799.044935][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6799.044935][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6799.044935][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6799.044935][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6799.044935][   T73]      netlink_rcv_skb+0x130/0x360
[ 6799.044935][   T73]      netlink_unicast+0x449/0x710
[ 6799.044935][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6799.044935][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6799.044935][   T73]      ___sys_sendmsg+0xee/0x170
[ 6799.044935][   T73]      __sys_sendmsg+0xcd/0x170
[ 6799.044935][   T73]      do_syscall_64+0xc6/0x1e0
[ 6799.044935][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6799.044935][   T73] 
[ 6799.047233][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6799.047233][   T73]      netdev_get_by_index+0x5e/0x80
[ 6799.047233][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6799.047233][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6799.047233][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6799.047233][   T73]      ipv6_add_addr+0x411/0x2000
[ 6799.047233][   T73]      inet6_addr_add+0x30e/0xa40
[ 6799.047233][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6799.047233][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6799.047233][   T73]      netlink_rcv_skb+0x130/0x360
[ 6799.047233][   T73]      netlink_unicast+0x449/0x710
[ 6799.047233][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6799.047233][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6799.047233][   T73]      ___sys_sendmsg+0xee/0x170
[ 6799.047233][   T73]      __sys_sendmsg+0xcd/0x170
[ 6799.047233][   T73]      do_syscall_64+0xc6/0x1e0
[ 6799.047233][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6799.047233][   T73] 
[ 6799.049507][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6799.049507][   T73]      netdev_get_by_index+0x5e/0x80
[ 6799.049507][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6799.049507][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6799.049507][   T73]      ip6_route_add+0x1c/0x140
[ 6799.049507][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6799.049507][   T73]      addrconf_add_dev+0xe2/0x170
[ 6799.049507][   T73]      inet6_addr_add+0x12f/0xa40
[ 6799.049507][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6799.049507][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6799.049507][   T73]      netlink_rcv_skb+0x130/0x360
[ 6799.049507][   T73]      netlink_unicast+0x449/0x710
[ 6799.049507][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6799.049507][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6799.049507][   T73]      ___sys_sendmsg+0xee/0x170
[ 6799.049507][   T73]      __sys_sendmsg+0xcd/0x170
[ 6799.049507][   T73]      do_syscall_64+0xc6/0x1e0
[ 6799.049507][   T73] 
[ 6799.051752][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6799.051752][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6799.051752][   T73]      ipv6_find_idev+0x102/0x170
[ 6799.051752][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6799.051752][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6799.051752][   T73]      netlink_rcv_skb+0x130/0x360
[ 6799.051752][   T73]      netlink_unicast+0x449/0x710
[ 6799.051752][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6799.051752][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6799.051752][   T73]      ___sys_sendmsg+0xee/0x170
[ 6799.051752][   T73]      __sys_sendmsg+0xcd/0x170
[ 6799.051752][   T73]      do_syscall_64+0xc6/0x1e0
[ 6799.051752][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6799.051752][   T73] 
[ 6799.053570][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6799.053570][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6799.053570][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6799.053570][   T73]      ipv6_find_idev+0x102/0x170
[ 6799.053570][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6799.053570][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6799.053570][   T73]      netlink_rcv_skb+0x130/0x360
[ 6799.053570][   T73]      netlink_unicast+0x449/0x710
[ 6799.053570][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6799.053570][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6799.053570][   T73]      ___sys_sendmsg+0xee/0x170
[ 6799.053570][   T73]      __sys_sendmsg+0xcd/0x170
[ 6799.053570][   T73]      do_syscall_64+0xc6/0x1e0
[ 6799.053570][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6799.053570][   T73] 
[ 6799.055473][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6799.056187][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6799.056187][   T73]      netdev_get_by_index+0x5e/0x80
[ 6799.056187][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6799.056187][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6799.056187][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6799.056187][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6799.056187][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6799.056187][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6799.056187][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6799.056187][   T73]      addrconf_dad_begin+0x310/0x670
[ 6799.056187][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6799.056187][   T73]      process_one_work+0x84d/0x18a0
[ 6799.056187][   T73]      worker_thread+0x587/0xd30
[ 6799.056187][   T73]      kthread+0x28a/0x350
[ 6799.056187][   T73]      ret_from_fork+0x31/0x70
[ 6799.056187][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6799.056187][   T73] 
[ 6799.058131][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6799.058131][   T73]      netdev_get_by_index+0x5e/0x80
[ 6799.058131][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6799.058131][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6799.058131][   T73]      ip6_route_add+0x1c/0x140
[ 6799.058131][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6799.058131][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6799.058131][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6799.058131][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6799.058131][   T73]      netlink_rcv_skb+0x130/0x360
[ 6799.058131][   T73]      netlink_unicast+0x449/0x710
[ 6799.058131][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6799.058131][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6799.058131][   T73]      ___sys_sendmsg+0xee/0x170
[ 6799.058131][   T73]      __sys_sendmsg+0xcd/0x170
[ 6799.058131][   T73]      do_syscall_64+0xc6/0x1e0
[ 6799.058131][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6799.058131][   T73] 
[ 6799.060283][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6799.060283][   T73]      netdev_get_by_index+0x5e/0x80
[ 6799.060283][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6799.060283][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6799.060283][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6799.060283][   T73]      ipv6_add_addr+0x411/0x2000
[ 6799.060283][   T73]      inet6_addr_add+0x30e/0xa40
[ 6799.060283][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6799.060283][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6799.060283][   T73]      netlink_rcv_skb+0x130/0x360
[ 6799.060283][   T73]      netlink_unicast+0x449/0x710
[ 6799.060283][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6799.060283][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6799.060283][   T73]      ___sys_sendmsg+0xee/0x170
[ 6799.060283][   T73]      __sys_sendmsg+0xcd/0x170
[ 6799.060283][   T73]      do_syscall_64+0xc6/0x1e0
[ 6799.060283][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6799.060283][   T73] 
[ 6799.062569][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6799.062569][   T73]      netdev_get_by_index+0x5e/0x80
[ 6799.062569][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6799.062569][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6799.062569][   T73]      ip6_route_add+0x1c/0x140
[ 6799.062569][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6799.062569][   T73]      addrconf_add_dev+0xe2/0x170
[ 6799.062569][   T73]      inet6_addr_add+0x12f/0xa40
[ 6799.062569][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6799.062569][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6799.062569][   T73]      netlink_rcv_skb+0x130/0x360
[ 6799.062569][   T73]      netlink_unicast+0x449/0x710
[ 6799.062569][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6799.062569][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6799.062569][   T73]      ___sys_sendmsg+0xee/0x170
[ 6799.062569][   T73]      __sys_sendmsg+0xcd/0x170
[ 6799.062569][   T73]      do_syscall_64+0xc6/0x1e0
[ 6799.062569][   T73] 
[ 6799.064748][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6799.064748][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6799.064748][   T73]      ipv6_find_idev+0x102/0x170
[ 6799.064748][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6799.064748][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6799.064748][   T73]      netlink_rcv_skb+0x130/0x360
[ 6799.064748][   T73]      netlink_unicast+0x449/0x710
[ 6799.064748][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6799.064748][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6799.064748][   T73]      ___sys_sendmsg+0xee/0x170
[ 6799.064748][   T73]      __sys_sendmsg+0xcd/0x170
[ 6799.064748][   T73]      do_syscall_64+0xc6/0x1e0
[ 6799.064748][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6799.064748][   T73] 
[ 6799.066496][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6799.066496][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6799.066496][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6799.066496][   T73]      ipv6_find_idev+0x102/0x170
[ 6799.066496][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6799.066496][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6799.066496][   T73]      netlink_rcv_skb+0x130/0x360
[ 6799.066496][   T73]      netlink_unicast+0x449/0x710
[ 6799.066496][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6799.066496][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6799.066496][   T73]      ___sys_sendmsg+0xee/0x170
[ 6799.066496][   T73]      __sys_sendmsg+0xcd/0x170
[ 6799.066496][   T73]      do_syscall_64+0xc6/0x1e0
[ 6799.066496][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6799.066496][   T73] 
[ 6809.303753][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6809.304216][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6809.304216][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6809.304216][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6809.304216][   T73]      fib6_nh_init+0xa22/0x1580
[ 6809.304216][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6809.304216][   T73]      ip6_route_add+0x1c/0x140
[ 6809.304216][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6809.304216][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6809.304216][   T73]      netlink_rcv_skb+0x130/0x360
[ 6809.304216][   T73]      netlink_unicast+0x449/0x710
[ 6809.304216][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6809.304216][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6809.304216][   T73]      ___sys_sendmsg+0xee/0x170
[ 6809.304216][   T73]      __sys_sendmsg+0xcd/0x170
[ 6809.304216][   T73]      do_syscall_64+0xc6/0x1e0
[ 6809.304216][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6809.304216][   T73] 
[ 6809.306190][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6809.306190][   T73]      dst_init+0x84/0x4a0
[ 6809.306190][   T73]      dst_alloc+0x97/0x150
[ 6809.306190][   T73]      ip6_dst_alloc+0x23/0x90
[ 6809.306190][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6809.306190][   T73]      ip6_pol_route+0x56f/0x840
[ 6809.306190][   T73]      fib6_rule_lookup+0x456/0x630
[ 6809.306190][   T73]      ip6_route_input+0x59c/0xa50
[ 6809.306190][   T73]      ipv6_rcv+0x397/0x810
[ 6809.306190][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6809.306190][   T73]      process_backlog+0x101/0x620
[ 6809.306190][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6809.306190][   T73]      net_rx_action+0x495/0xbe0
[ 6809.306190][   T73]      __do_softirq+0x1b5/0x7f6
[ 6809.306190][   T73] 
[ 6809.307881][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6809.307881][   T73]      netdev_get_by_index+0x5e/0x80
[ 6809.307881][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6809.307881][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6809.307881][   T73]      ip6_route_add+0x1c/0x140
[ 6809.307881][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6809.307881][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6809.307881][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6809.307881][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6809.307881][   T73]      netlink_rcv_skb+0x130/0x360
[ 6809.307881][   T73]      netlink_unicast+0x449/0x710
[ 6809.307881][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6809.307881][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6809.307881][   T73]      ___sys_sendmsg+0xee/0x170
[ 6809.307881][   T73]      __sys_sendmsg+0xcd/0x170
[ 6809.307881][   T73]      do_syscall_64+0xc6/0x1e0
[ 6809.307881][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6809.307881][   T73] 
[ 6809.309910][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6809.309910][   T73]      netdev_get_by_index+0x5e/0x80
[ 6809.309910][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6809.309910][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6809.309910][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6809.309910][   T73]      ipv6_add_addr+0x411/0x2000
[ 6809.309910][   T73]      inet6_addr_add+0x30e/0xa40
[ 6809.309910][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6809.309910][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6809.309910][   T73]      netlink_rcv_skb+0x130/0x360
[ 6809.309910][   T73]      netlink_unicast+0x449/0x710
[ 6809.309910][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6809.309910][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6809.309910][   T73]      ___sys_sendmsg+0xee/0x170
[ 6809.309910][   T73]      __sys_sendmsg+0xcd/0x170
[ 6809.309910][   T73]      do_syscall_64+0xc6/0x1e0
[ 6809.309910][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6809.309910][   T73] 
[ 6809.311944][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6809.311944][   T73]      netdev_get_by_index+0x5e/0x80
[ 6809.311944][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6809.311944][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6809.311944][   T73]      ip6_route_add+0x1c/0x140
[ 6809.311944][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6809.311944][   T73]      addrconf_add_dev+0xe2/0x170
[ 6809.311944][   T73]      inet6_addr_add+0x12f/0xa40
[ 6809.311944][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6809.311944][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6809.311944][   T73]      netlink_rcv_skb+0x130/0x360
[ 6809.311944][   T73]      netlink_unicast+0x449/0x710
[ 6809.311944][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6809.311944][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6809.311944][   T73]      ___sys_sendmsg+0xee/0x170
[ 6809.311944][   T73]      __sys_sendmsg+0xcd/0x170
[ 6809.311944][   T73]      do_syscall_64+0xc6/0x1e0
[ 6809.311944][   T73] 
[ 6809.313953][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6809.313953][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6809.313953][   T73]      ipv6_find_idev+0x102/0x170
[ 6809.313953][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6809.313953][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6809.313953][   T73]      netlink_rcv_skb+0x130/0x360
[ 6809.313953][   T73]      netlink_unicast+0x449/0x710
[ 6809.313953][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6809.313953][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6809.313953][   T73]      ___sys_sendmsg+0xee/0x170
[ 6809.313953][   T73]      __sys_sendmsg+0xcd/0x170
[ 6809.313953][   T73]      do_syscall_64+0xc6/0x1e0
[ 6809.313953][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6809.313953][   T73] 
[ 6809.316055][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6809.316055][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6809.316055][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6809.316055][   T73]      ipv6_find_idev+0x102/0x170
[ 6809.316055][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6809.316055][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6809.316055][   T73]      netlink_rcv_skb+0x130/0x360
[ 6809.316055][   T73]      netlink_unicast+0x449/0x710
[ 6809.316055][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6809.316055][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6809.316055][   T73]      ___sys_sendmsg+0xee/0x170
[ 6809.316055][   T73]      __sys_sendmsg+0xcd/0x170
[ 6809.316055][   T73]      do_syscall_64+0xc6/0x1e0
[ 6809.316055][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6809.316055][   T73] 
[ 6809.317793][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6809.318092][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6809.318092][   T73]      netdev_get_by_index+0x5e/0x80
[ 6809.318092][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6809.318092][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6809.318092][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6809.318092][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6809.318092][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6809.318092][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6809.318092][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6809.318092][   T73]      addrconf_dad_begin+0x310/0x670
[ 6809.318092][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6809.318092][   T73]      process_one_work+0x84d/0x18a0
[ 6809.318092][   T73]      worker_thread+0x587/0xd30
[ 6809.318092][   T73]      kthread+0x28a/0x350
[ 6809.318092][   T73]      ret_from_fork+0x31/0x70
[ 6809.318092][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6809.318092][   T73] 
[ 6809.320037][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6809.320037][   T73]      netdev_get_by_index+0x5e/0x80
[ 6809.320037][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6809.320037][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6809.320037][   T73]      ip6_route_add+0x1c/0x140
[ 6809.320037][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6809.320037][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6809.320037][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6809.320037][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6809.320037][   T73]      netlink_rcv_skb+0x130/0x360
[ 6809.320037][   T73]      netlink_unicast+0x449/0x710
[ 6809.320037][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6809.320037][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6809.320037][   T73]      ___sys_sendmsg+0xee/0x170
[ 6809.320037][   T73]      __sys_sendmsg+0xcd/0x170
[ 6809.320037][   T73]      do_syscall_64+0xc6/0x1e0
[ 6809.320037][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6809.320037][   T73] 
[ 6809.322080][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6809.322080][   T73]      netdev_get_by_index+0x5e/0x80
[ 6809.322080][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6809.322080][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6809.322080][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6809.322080][   T73]      ipv6_add_addr+0x411/0x2000
[ 6809.322080][   T73]      inet6_addr_add+0x30e/0xa40
[ 6809.322080][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6809.322080][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6809.322080][   T73]      netlink_rcv_skb+0x130/0x360
[ 6809.322080][   T73]      netlink_unicast+0x449/0x710
[ 6809.322080][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6809.322080][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6809.322080][   T73]      ___sys_sendmsg+0xee/0x170
[ 6809.322080][   T73]      __sys_sendmsg+0xcd/0x170
[ 6809.322080][   T73]      do_syscall_64+0xc6/0x1e0
[ 6809.322080][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6809.322080][   T73] 
[ 6809.324138][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6809.324138][   T73]      netdev_get_by_index+0x5e/0x80
[ 6809.324138][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6809.324138][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6809.324138][   T73]      ip6_route_add+0x1c/0x140
[ 6809.324138][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6809.324138][   T73]      addrconf_add_dev+0xe2/0x170
[ 6809.324138][   T73]      inet6_addr_add+0x12f/0xa40
[ 6809.324138][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6809.324138][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6809.324138][   T73]      netlink_rcv_skb+0x130/0x360
[ 6809.324138][   T73]      netlink_unicast+0x449/0x710
[ 6809.324138][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6809.324138][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6809.324138][   T73]      ___sys_sendmsg+0xee/0x170
[ 6809.324138][   T73]      __sys_sendmsg+0xcd/0x170
[ 6809.324138][   T73]      do_syscall_64+0xc6/0x1e0
[ 6809.324138][   T73] 
[ 6809.326135][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6809.326135][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6809.326135][   T73]      ipv6_find_idev+0x102/0x170
[ 6809.326135][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6809.326135][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6809.326135][   T73]      netlink_rcv_skb+0x130/0x360
[ 6809.326135][   T73]      netlink_unicast+0x449/0x710
[ 6809.326135][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6809.326135][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6809.326135][   T73]      ___sys_sendmsg+0xee/0x170
[ 6809.326135][   T73]      __sys_sendmsg+0xcd/0x170
[ 6809.326135][   T73]      do_syscall_64+0xc6/0x1e0
[ 6809.326135][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6809.326135][   T73] 
[ 6809.327704][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6809.327704][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6809.327704][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6809.327704][   T73]      ipv6_find_idev+0x102/0x170
[ 6809.327704][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6809.327704][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6809.327704][   T73]      netlink_rcv_skb+0x130/0x360
[ 6809.327704][   T73]      netlink_unicast+0x449/0x710
[ 6809.327704][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6809.327704][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6809.327704][   T73]      ___sys_sendmsg+0xee/0x170
[ 6809.327704][   T73]      __sys_sendmsg+0xcd/0x170
[ 6809.327704][   T73]      do_syscall_64+0xc6/0x1e0
[ 6809.327704][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6809.327704][   T73] 
[ 6809.329430][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6809.329723][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6809.329723][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6809.329723][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6809.329723][   T73]      fib6_nh_init+0xa22/0x1580
[ 6809.329723][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6809.329723][   T73]      ip6_route_add+0x1c/0x140
[ 6809.329723][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6809.329723][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6809.329723][   T73]      netlink_rcv_skb+0x130/0x360
[ 6809.329723][   T73]      netlink_unicast+0x449/0x710
[ 6809.329723][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6809.329723][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6809.329723][   T73]      ___sys_sendmsg+0xee/0x170
[ 6809.329723][   T73]      __sys_sendmsg+0xcd/0x170
[ 6809.329723][   T73]      do_syscall_64+0xc6/0x1e0
[ 6809.329723][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6809.329723][   T73] 
[ 6809.331819][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6809.331819][   T73]      dst_init+0x84/0x4a0
[ 6809.331819][   T73]      dst_alloc+0x97/0x150
[ 6809.331819][   T73]      ip6_dst_alloc+0x23/0x90
[ 6809.331819][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6809.331819][   T73]      ip6_pol_route+0x56f/0x840
[ 6809.331819][   T73]      fib6_rule_lookup+0x456/0x630
[ 6809.331819][   T73]      ip6_route_input+0x59c/0xa50
[ 6809.331819][   T73]      ipv6_rcv+0x397/0x810
[ 6809.331819][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6809.331819][   T73]      process_backlog+0x101/0x620
[ 6809.331819][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6809.331819][   T73]      net_rx_action+0x495/0xbe0
[ 6809.331819][   T73]      __do_softirq+0x1b5/0x7f6
[ 6809.331819][   T73] 
[ 6809.336676][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6809.336676][   T73]      netdev_get_by_index+0x5e/0x80
[ 6809.336676][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6809.336676][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6809.336676][   T73]      ip6_route_add+0x1c/0x140
[ 6809.336676][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6809.336676][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6809.336676][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6809.336676][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6809.336676][   T73]      netlink_rcv_skb+0x130/0x360
[ 6809.336676][   T73]      netlink_unicast+0x449/0x710
[ 6809.336676][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6809.336676][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6809.336676][   T73]      ___sys_sendmsg+0xee/0x170
[ 6809.336676][   T73]      __sys_sendmsg+0xcd/0x170
[ 6809.336676][   T73]      do_syscall_64+0xc6/0x1e0
[ 6809.336676][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6809.336676][   T73] 
[ 6809.338881][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6809.338881][   T73]      netdev_get_by_index+0x5e/0x80
[ 6809.338881][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6809.338881][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6809.338881][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6809.338881][   T73]      ipv6_add_addr+0x411/0x2000
[ 6809.338881][   T73]      inet6_addr_add+0x30e/0xa40
[ 6809.338881][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6809.338881][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6809.338881][   T73]      netlink_rcv_skb+0x130/0x360
[ 6809.338881][   T73]      netlink_unicast+0x449/0x710
[ 6809.338881][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6809.338881][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6809.338881][   T73]      ___sys_sendmsg+0xee/0x170
[ 6809.338881][   T73]      __sys_sendmsg+0xcd/0x170
[ 6809.338881][   T73]      do_syscall_64+0xc6/0x1e0
[ 6809.338881][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6809.338881][   T73] 
[ 6809.341155][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6809.341155][   T73]      netdev_get_by_index+0x5e/0x80
[ 6809.341155][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6809.341155][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6809.341155][   T73]      ip6_route_add+0x1c/0x140
[ 6809.341155][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6809.341155][   T73]      addrconf_add_dev+0xe2/0x170
[ 6809.341155][   T73]      inet6_addr_add+0x12f/0xa40
[ 6809.341155][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6809.341155][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6809.341155][   T73]      netlink_rcv_skb+0x130/0x360
[ 6809.341155][   T73]      netlink_unicast+0x449/0x710
[ 6809.341155][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6809.341155][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6809.341155][   T73]      ___sys_sendmsg+0xee/0x170
[ 6809.341155][   T73]      __sys_sendmsg+0xcd/0x170
[ 6809.341155][   T73]      do_syscall_64+0xc6/0x1e0
[ 6809.341155][   T73] 
[ 6809.343393][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6809.343393][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6809.343393][   T73]      ipv6_find_idev+0x102/0x170
[ 6809.343393][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6809.343393][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6809.343393][   T73]      netlink_rcv_skb+0x130/0x360
[ 6809.343393][   T73]      netlink_unicast+0x449/0x710
[ 6809.343393][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6809.343393][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6809.343393][   T73]      ___sys_sendmsg+0xee/0x170
[ 6809.343393][   T73]      __sys_sendmsg+0xcd/0x170
[ 6809.343393][   T73]      do_syscall_64+0xc6/0x1e0
[ 6809.343393][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6809.343393][   T73] 
[ 6809.345205][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6809.345205][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6809.345205][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6809.345205][   T73]      ipv6_find_idev+0x102/0x170
[ 6809.345205][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6809.345205][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6809.345205][   T73]      netlink_rcv_skb+0x130/0x360
[ 6809.345205][   T73]      netlink_unicast+0x449/0x710
[ 6809.345205][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6809.345205][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6809.345205][   T73]      ___sys_sendmsg+0xee/0x170
[ 6809.345205][   T73]      __sys_sendmsg+0xcd/0x170
[ 6809.345205][   T73]      do_syscall_64+0xc6/0x1e0
[ 6809.345205][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6809.345205][   T73] 
[ 6809.347115][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6809.347393][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6809.347393][   T73]      netdev_get_by_index+0x5e/0x80
[ 6809.347393][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6809.347393][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6809.347393][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6809.347393][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6809.347393][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6809.347393][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6809.347393][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6809.347393][   T73]      addrconf_dad_begin+0x310/0x670
[ 6809.347393][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6809.347393][   T73]      process_one_work+0x84d/0x18a0
[ 6809.347393][   T73]      worker_thread+0x587/0xd30
[ 6809.347393][   T73]      kthread+0x28a/0x350
[ 6809.347393][   T73]      ret_from_fork+0x31/0x70
[ 6809.347393][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6809.347393][   T73] 
[ 6809.349576][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6809.349576][   T73]      netdev_get_by_index+0x5e/0x80
[ 6809.349576][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6809.349576][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6809.349576][   T73]      ip6_route_add+0x1c/0x140
[ 6809.349576][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6809.349576][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6809.349576][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6809.349576][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6809.349576][   T73]      netlink_rcv_skb+0x130/0x360
[ 6809.349576][   T73]      netlink_unicast+0x449/0x710
[ 6809.349576][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6809.349576][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6809.349576][   T73]      ___sys_sendmsg+0xee/0x170
[ 6809.349576][   T73]      __sys_sendmsg+0xcd/0x170
[ 6809.349576][   T73]      do_syscall_64+0xc6/0x1e0
[ 6809.349576][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6809.349576][   T73] 
[ 6809.351836][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6809.351836][   T73]      netdev_get_by_index+0x5e/0x80
[ 6809.351836][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6809.351836][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6809.351836][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6809.351836][   T73]      ipv6_add_addr+0x411/0x2000
[ 6809.351836][   T73]      inet6_addr_add+0x30e/0xa40
[ 6809.351836][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6809.351836][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6809.351836][   T73]      netlink_rcv_skb+0x130/0x360
[ 6809.351836][   T73]      netlink_unicast+0x449/0x710
[ 6809.351836][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6809.351836][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6809.351836][   T73]      ___sys_sendmsg+0xee/0x170
[ 6809.351836][   T73]      __sys_sendmsg+0xcd/0x170
[ 6809.351836][   T73]      do_syscall_64+0xc6/0x1e0
[ 6809.351836][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6809.351836][   T73] 
[ 6809.354180][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6809.354180][   T73]      netdev_get_by_index+0x5e/0x80
[ 6809.354180][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6809.354180][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6809.354180][   T73]      ip6_route_add+0x1c/0x140
[ 6809.354180][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6809.354180][   T73]      addrconf_add_dev+0xe2/0x170
[ 6809.354180][   T73]      inet6_addr_add+0x12f/0xa40
[ 6809.354180][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6809.354180][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6809.354180][   T73]      netlink_rcv_skb+0x130/0x360
[ 6809.354180][   T73]      netlink_unicast+0x449/0x710
[ 6809.354180][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6809.354180][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6809.354180][   T73]      ___sys_sendmsg+0xee/0x170
[ 6809.354180][   T73]      __sys_sendmsg+0xcd/0x170
[ 6809.354180][   T73]      do_syscall_64+0xc6/0x1e0
[ 6809.354180][   T73] 
[ 6809.356343][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6809.356343][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6809.356343][   T73]      ipv6_find_idev+0x102/0x170
[ 6809.356343][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6809.356343][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6809.356343][   T73]      netlink_rcv_skb+0x130/0x360
[ 6809.356343][   T73]      netlink_unicast+0x449/0x710
[ 6809.356343][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6809.356343][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6809.356343][   T73]      ___sys_sendmsg+0xee/0x170
[ 6809.356343][   T73]      __sys_sendmsg+0xcd/0x170
[ 6809.356343][   T73]      do_syscall_64+0xc6/0x1e0
[ 6809.356343][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6809.356343][   T73] 
[ 6809.358085][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6809.358085][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6809.358085][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6809.358085][   T73]      ipv6_find_idev+0x102/0x170
[ 6809.358085][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6809.358085][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6809.358085][   T73]      netlink_rcv_skb+0x130/0x360
[ 6809.358085][   T73]      netlink_unicast+0x449/0x710
[ 6809.358085][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6809.358085][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6809.358085][   T73]      ___sys_sendmsg+0xee/0x170
[ 6809.358085][   T73]      __sys_sendmsg+0xcd/0x170
[ 6809.358085][   T73]      do_syscall_64+0xc6/0x1e0
[ 6809.358085][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6809.358085][   T73] 
[ 6819.591753][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6819.592158][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6819.592158][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6819.592158][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6819.592158][   T73]      fib6_nh_init+0xa22/0x1580
[ 6819.592158][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6819.592158][   T73]      ip6_route_add+0x1c/0x140
[ 6819.592158][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6819.592158][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6819.592158][   T73]      netlink_rcv_skb+0x130/0x360
[ 6819.592158][   T73]      netlink_unicast+0x449/0x710
[ 6819.592158][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6819.592158][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6819.592158][   T73]      ___sys_sendmsg+0xee/0x170
[ 6819.592158][   T73]      __sys_sendmsg+0xcd/0x170
[ 6819.592158][   T73]      do_syscall_64+0xc6/0x1e0
[ 6819.592158][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6819.592158][   T73] 
[ 6819.594094][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6819.594094][   T73]      dst_init+0x84/0x4a0
[ 6819.594094][   T73]      dst_alloc+0x97/0x150
[ 6819.594094][   T73]      ip6_dst_alloc+0x23/0x90
[ 6819.594094][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6819.594094][   T73]      ip6_pol_route+0x56f/0x840
[ 6819.594094][   T73]      fib6_rule_lookup+0x456/0x630
[ 6819.594094][   T73]      ip6_route_input+0x59c/0xa50
[ 6819.594094][   T73]      ipv6_rcv+0x397/0x810
[ 6819.594094][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6819.594094][   T73]      process_backlog+0x101/0x620
[ 6819.594094][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6819.594094][   T73]      net_rx_action+0x495/0xbe0
[ 6819.594094][   T73]      __do_softirq+0x1b5/0x7f6
[ 6819.594094][   T73] 
[ 6819.595747][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6819.595747][   T73]      netdev_get_by_index+0x5e/0x80
[ 6819.595747][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6819.595747][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6819.595747][   T73]      ip6_route_add+0x1c/0x140
[ 6819.595747][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6819.595747][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6819.595747][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6819.595747][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6819.595747][   T73]      netlink_rcv_skb+0x130/0x360
[ 6819.595747][   T73]      netlink_unicast+0x449/0x710
[ 6819.595747][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6819.595747][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6819.595747][   T73]      ___sys_sendmsg+0xee/0x170
[ 6819.595747][   T73]      __sys_sendmsg+0xcd/0x170
[ 6819.595747][   T73]      do_syscall_64+0xc6/0x1e0
[ 6819.595747][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6819.595747][   T73] 
[ 6819.597760][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6819.597760][   T73]      netdev_get_by_index+0x5e/0x80
[ 6819.597760][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6819.597760][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6819.597760][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6819.597760][   T73]      ipv6_add_addr+0x411/0x2000
[ 6819.597760][   T73]      inet6_addr_add+0x30e/0xa40
[ 6819.597760][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6819.597760][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6819.597760][   T73]      netlink_rcv_skb+0x130/0x360
[ 6819.597760][   T73]      netlink_unicast+0x449/0x710
[ 6819.597760][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6819.597760][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6819.597760][   T73]      ___sys_sendmsg+0xee/0x170
[ 6819.597760][   T73]      __sys_sendmsg+0xcd/0x170
[ 6819.597760][   T73]      do_syscall_64+0xc6/0x1e0
[ 6819.597760][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6819.597760][   T73] 
[ 6819.599772][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6819.599772][   T73]      netdev_get_by_index+0x5e/0x80
[ 6819.599772][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6819.599772][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6819.599772][   T73]      ip6_route_add+0x1c/0x140
[ 6819.599772][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6819.599772][   T73]      addrconf_add_dev+0xe2/0x170
[ 6819.599772][   T73]      inet6_addr_add+0x12f/0xa40
[ 6819.599772][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6819.599772][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6819.599772][   T73]      netlink_rcv_skb+0x130/0x360
[ 6819.599772][   T73]      netlink_unicast+0x449/0x710
[ 6819.599772][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6819.599772][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6819.599772][   T73]      ___sys_sendmsg+0xee/0x170
[ 6819.599772][   T73]      __sys_sendmsg+0xcd/0x170
[ 6819.599772][   T73]      do_syscall_64+0xc6/0x1e0
[ 6819.599772][   T73] 
[ 6819.601759][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6819.601759][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6819.601759][   T73]      ipv6_find_idev+0x102/0x170
[ 6819.601759][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6819.601759][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6819.601759][   T73]      netlink_rcv_skb+0x130/0x360
[ 6819.601759][   T73]      netlink_unicast+0x449/0x710
[ 6819.601759][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6819.601759][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6819.601759][   T73]      ___sys_sendmsg+0xee/0x170
[ 6819.601759][   T73]      __sys_sendmsg+0xcd/0x170
[ 6819.601759][   T73]      do_syscall_64+0xc6/0x1e0
[ 6819.601759][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6819.601759][   T73] 
[ 6819.603314][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6819.603314][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6819.603314][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6819.603314][   T73]      ipv6_find_idev+0x102/0x170
[ 6819.603314][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6819.603314][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6819.603314][   T73]      netlink_rcv_skb+0x130/0x360
[ 6819.603314][   T73]      netlink_unicast+0x449/0x710
[ 6819.603314][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6819.603314][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6819.603314][   T73]      ___sys_sendmsg+0xee/0x170
[ 6819.603314][   T73]      __sys_sendmsg+0xcd/0x170
[ 6819.603314][   T73]      do_syscall_64+0xc6/0x1e0
[ 6819.603314][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6819.603314][   T73] 
[ 6819.605020][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6819.605302][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6819.605302][   T73]      netdev_get_by_index+0x5e/0x80
[ 6819.605302][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6819.605302][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6819.605302][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6819.605302][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6819.605302][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6819.605302][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6819.605302][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6819.605302][   T73]      addrconf_dad_begin+0x310/0x670
[ 6819.605302][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6819.605302][   T73]      process_one_work+0x84d/0x18a0
[ 6819.605302][   T73]      worker_thread+0x587/0xd30
[ 6819.605302][   T73]      kthread+0x28a/0x350
[ 6819.605302][   T73]      ret_from_fork+0x31/0x70
[ 6819.605302][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6819.605302][   T73] 
[ 6819.607234][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6819.607234][   T73]      netdev_get_by_index+0x5e/0x80
[ 6819.607234][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6819.607234][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6819.607234][   T73]      ip6_route_add+0x1c/0x140
[ 6819.607234][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6819.607234][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6819.607234][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6819.607234][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6819.607234][   T73]      netlink_rcv_skb+0x130/0x360
[ 6819.607234][   T73]      netlink_unicast+0x449/0x710
[ 6819.607234][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6819.607234][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6819.607234][   T73]      ___sys_sendmsg+0xee/0x170
[ 6819.607234][   T73]      __sys_sendmsg+0xcd/0x170
[ 6819.607234][   T73]      do_syscall_64+0xc6/0x1e0
[ 6819.607234][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6819.607234][   T73] 
[ 6819.609248][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6819.609248][   T73]      netdev_get_by_index+0x5e/0x80
[ 6819.609248][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6819.609248][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6819.609248][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6819.609248][   T73]      ipv6_add_addr+0x411/0x2000
[ 6819.609248][   T73]      inet6_addr_add+0x30e/0xa40
[ 6819.609248][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6819.609248][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6819.609248][   T73]      netlink_rcv_skb+0x130/0x360
[ 6819.609248][   T73]      netlink_unicast+0x449/0x710
[ 6819.609248][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6819.609248][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6819.609248][   T73]      ___sys_sendmsg+0xee/0x170
[ 6819.609248][   T73]      __sys_sendmsg+0xcd/0x170
[ 6819.609248][   T73]      do_syscall_64+0xc6/0x1e0
[ 6819.609248][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6819.609248][   T73] 
[ 6819.611254][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6819.611254][   T73]      netdev_get_by_index+0x5e/0x80
[ 6819.611254][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6819.611254][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6819.611254][   T73]      ip6_route_add+0x1c/0x140
[ 6819.611254][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6819.611254][   T73]      addrconf_add_dev+0xe2/0x170
[ 6819.611254][   T73]      inet6_addr_add+0x12f/0xa40
[ 6819.611254][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6819.611254][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6819.611254][   T73]      netlink_rcv_skb+0x130/0x360
[ 6819.611254][   T73]      netlink_unicast+0x449/0x710
[ 6819.611254][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6819.611254][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6819.611254][   T73]      ___sys_sendmsg+0xee/0x170
[ 6819.611254][   T73]      __sys_sendmsg+0xcd/0x170
[ 6819.611254][   T73]      do_syscall_64+0xc6/0x1e0
[ 6819.611254][   T73] 
[ 6819.613226][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6819.613226][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6819.613226][   T73]      ipv6_find_idev+0x102/0x170
[ 6819.613226][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6819.613226][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6819.613226][   T73]      netlink_rcv_skb+0x130/0x360
[ 6819.613226][   T73]      netlink_unicast+0x449/0x710
[ 6819.613226][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6819.613226][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6819.613226][   T73]      ___sys_sendmsg+0xee/0x170
[ 6819.613226][   T73]      __sys_sendmsg+0xcd/0x170
[ 6819.613226][   T73]      do_syscall_64+0xc6/0x1e0
[ 6819.613226][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6819.613226][   T73] 
[ 6819.614762][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6819.614762][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6819.614762][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6819.614762][   T73]      ipv6_find_idev+0x102/0x170
[ 6819.614762][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6819.614762][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6819.614762][   T73]      netlink_rcv_skb+0x130/0x360
[ 6819.614762][   T73]      netlink_unicast+0x449/0x710
[ 6819.614762][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6819.614762][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6819.614762][   T73]      ___sys_sendmsg+0xee/0x170
[ 6819.614762][   T73]      __sys_sendmsg+0xcd/0x170
[ 6819.614762][   T73]      do_syscall_64+0xc6/0x1e0
[ 6819.614762][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6819.614762][   T73] 
[ 6819.616431][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6819.616711][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6819.616711][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6819.616711][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6819.616711][   T73]      fib6_nh_init+0xa22/0x1580
[ 6819.616711][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6819.616711][   T73]      ip6_route_add+0x1c/0x140
[ 6819.616711][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6819.616711][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6819.616711][   T73]      netlink_rcv_skb+0x130/0x360
[ 6819.616711][   T73]      netlink_unicast+0x449/0x710
[ 6819.616711][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6819.616711][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6819.616711][   T73]      ___sys_sendmsg+0xee/0x170
[ 6819.616711][   T73]      __sys_sendmsg+0xcd/0x170
[ 6819.616711][   T73]      do_syscall_64+0xc6/0x1e0
[ 6819.616711][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6819.616711][   T73] 
[ 6819.618775][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6819.618775][   T73]      dst_init+0x84/0x4a0
[ 6819.618775][   T73]      dst_alloc+0x97/0x150
[ 6819.618775][   T73]      ip6_dst_alloc+0x23/0x90
[ 6819.618775][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6819.618775][   T73]      ip6_pol_route+0x56f/0x840
[ 6819.618775][   T73]      fib6_rule_lookup+0x456/0x630
[ 6819.618775][   T73]      ip6_route_input+0x59c/0xa50
[ 6819.618775][   T73]      ipv6_rcv+0x397/0x810
[ 6819.618775][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6819.618775][   T73]      process_backlog+0x101/0x620
[ 6819.618775][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6819.618775][   T73]      net_rx_action+0x495/0xbe0
[ 6819.618775][   T73]      __do_softirq+0x1b5/0x7f6
[ 6819.618775][   T73] 
[ 6819.620660][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6819.620660][   T73]      netdev_get_by_index+0x5e/0x80
[ 6819.620660][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6819.620660][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6819.620660][   T73]      ip6_route_add+0x1c/0x140
[ 6819.620660][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6819.620660][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6819.620660][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6819.620660][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6819.620660][   T73]      netlink_rcv_skb+0x130/0x360
[ 6819.620660][   T73]      netlink_unicast+0x449/0x710
[ 6819.620660][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6819.620660][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6819.620660][   T73]      ___sys_sendmsg+0xee/0x170
[ 6819.620660][   T73]      __sys_sendmsg+0xcd/0x170
[ 6819.620660][   T73]      do_syscall_64+0xc6/0x1e0
[ 6819.620660][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6819.620660][   T73] 
[ 6819.622911][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6819.622911][   T73]      netdev_get_by_index+0x5e/0x80
[ 6819.622911][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6819.622911][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6819.622911][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6819.622911][   T73]      ipv6_add_addr+0x411/0x2000
[ 6819.622911][   T73]      inet6_addr_add+0x30e/0xa40
[ 6819.622911][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6819.622911][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6819.622911][   T73]      netlink_rcv_skb+0x130/0x360
[ 6819.622911][   T73]      netlink_unicast+0x449/0x710
[ 6819.622911][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6819.622911][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6819.622911][   T73]      ___sys_sendmsg+0xee/0x170
[ 6819.622911][   T73]      __sys_sendmsg+0xcd/0x170
[ 6819.622911][   T73]      do_syscall_64+0xc6/0x1e0
[ 6819.622911][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6819.622911][   T73] 
[ 6819.625154][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6819.625154][   T73]      netdev_get_by_index+0x5e/0x80
[ 6819.625154][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6819.625154][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6819.625154][   T73]      ip6_route_add+0x1c/0x140
[ 6819.625154][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6819.625154][   T73]      addrconf_add_dev+0xe2/0x170
[ 6819.625154][   T73]      inet6_addr_add+0x12f/0xa40
[ 6819.625154][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6819.625154][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6819.625154][   T73]      netlink_rcv_skb+0x130/0x360
[ 6819.625154][   T73]      netlink_unicast+0x449/0x710
[ 6819.625154][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6819.625154][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6819.625154][   T73]      ___sys_sendmsg+0xee/0x170
[ 6819.625154][   T73]      __sys_sendmsg+0xcd/0x170
[ 6819.625154][   T73]      do_syscall_64+0xc6/0x1e0
[ 6819.625154][   T73] 
[ 6819.627243][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6819.627243][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6819.627243][   T73]      ipv6_find_idev+0x102/0x170
[ 6819.627243][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6819.627243][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6819.627243][   T73]      netlink_rcv_skb+0x130/0x360
[ 6819.627243][   T73]      netlink_unicast+0x449/0x710
[ 6819.627243][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6819.627243][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6819.627243][   T73]      ___sys_sendmsg+0xee/0x170
[ 6819.627243][   T73]      __sys_sendmsg+0xcd/0x170
[ 6819.627243][   T73]      do_syscall_64+0xc6/0x1e0
[ 6819.627243][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6819.627243][   T73] 
[ 6819.629016][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6819.629016][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6819.629016][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6819.629016][   T73]      ipv6_find_idev+0x102/0x170
[ 6819.629016][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6819.629016][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6819.629016][   T73]      netlink_rcv_skb+0x130/0x360
[ 6819.629016][   T73]      netlink_unicast+0x449/0x710
[ 6819.629016][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6819.629016][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6819.629016][   T73]      ___sys_sendmsg+0xee/0x170
[ 6819.629016][   T73]      __sys_sendmsg+0xcd/0x170
[ 6819.629016][   T73]      do_syscall_64+0xc6/0x1e0
[ 6819.629016][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6819.629016][   T73] 
[ 6819.630931][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6819.631201][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6819.631201][   T73]      netdev_get_by_index+0x5e/0x80
[ 6819.631201][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6819.631201][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6819.631201][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6819.631201][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6819.631201][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6819.631201][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6819.631201][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6819.631201][   T73]      addrconf_dad_begin+0x310/0x670
[ 6819.631201][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6819.631201][   T73]      process_one_work+0x84d/0x18a0
[ 6819.631201][   T73]      worker_thread+0x587/0xd30
[ 6819.631201][   T73]      kthread+0x28a/0x350
[ 6819.631201][   T73]      ret_from_fork+0x31/0x70
[ 6819.631201][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6819.631201][   T73] 
[ 6819.633370][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6819.633370][   T73]      netdev_get_by_index+0x5e/0x80
[ 6819.633370][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6819.633370][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6819.633370][   T73]      ip6_route_add+0x1c/0x140
[ 6819.633370][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6819.633370][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6819.633370][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6819.633370][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6819.633370][   T73]      netlink_rcv_skb+0x130/0x360
[ 6819.633370][   T73]      netlink_unicast+0x449/0x710
[ 6819.633370][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6819.633370][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6819.633370][   T73]      ___sys_sendmsg+0xee/0x170
[ 6819.633370][   T73]      __sys_sendmsg+0xcd/0x170
[ 6819.633370][   T73]      do_syscall_64+0xc6/0x1e0
[ 6819.633370][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6819.633370][   T73] 
[ 6819.635562][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6819.635562][   T73]      netdev_get_by_index+0x5e/0x80
[ 6819.635562][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6819.635562][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6819.635562][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6819.635562][   T73]      ipv6_add_addr+0x411/0x2000
[ 6819.635562][   T73]      inet6_addr_add+0x30e/0xa40
[ 6819.635562][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6819.635562][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6819.635562][   T73]      netlink_rcv_skb+0x130/0x360
[ 6819.635562][   T73]      netlink_unicast+0x449/0x710
[ 6819.635562][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6819.635562][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6819.635562][   T73]      ___sys_sendmsg+0xee/0x170
[ 6819.635562][   T73]      __sys_sendmsg+0xcd/0x170
[ 6819.635562][   T73]      do_syscall_64+0xc6/0x1e0
[ 6819.635562][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6819.635562][   T73] 
[ 6819.637799][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6819.637799][   T73]      netdev_get_by_index+0x5e/0x80
[ 6819.637799][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6819.637799][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6819.637799][   T73]      ip6_route_add+0x1c/0x140
[ 6819.637799][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6819.637799][   T73]      addrconf_add_dev+0xe2/0x170
[ 6819.637799][   T73]      inet6_addr_add+0x12f/0xa40
[ 6819.637799][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6819.637799][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6819.637799][   T73]      netlink_rcv_skb+0x130/0x360
[ 6819.637799][   T73]      netlink_unicast+0x449/0x710
[ 6819.637799][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6819.637799][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6819.637799][   T73]      ___sys_sendmsg+0xee/0x170
[ 6819.637799][   T73]      __sys_sendmsg+0xcd/0x170
[ 6819.637799][   T73]      do_syscall_64+0xc6/0x1e0
[ 6819.637799][   T73] 
[ 6819.640086][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6819.640086][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6819.640086][   T73]      ipv6_find_idev+0x102/0x170
[ 6819.640086][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6819.640086][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6819.640086][   T73]      netlink_rcv_skb+0x130/0x360
[ 6819.640086][   T73]      netlink_unicast+0x449/0x710
[ 6819.640086][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6819.640086][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6819.640086][   T73]      ___sys_sendmsg+0xee/0x170
[ 6819.640086][   T73]      __sys_sendmsg+0xcd/0x170
[ 6819.640086][   T73]      do_syscall_64+0xc6/0x1e0
[ 6819.640086][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6819.640086][   T73] 
[ 6819.641802][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6819.641802][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6819.641802][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6819.641802][   T73]      ipv6_find_idev+0x102/0x170
[ 6819.641802][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6819.641802][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6819.641802][   T73]      netlink_rcv_skb+0x130/0x360
[ 6819.641802][   T73]      netlink_unicast+0x449/0x710
[ 6819.641802][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6819.641802][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6819.641802][   T73]      ___sys_sendmsg+0xee/0x170
[ 6819.641802][   T73]      __sys_sendmsg+0xcd/0x170
[ 6819.641802][   T73]      do_syscall_64+0xc6/0x1e0
[ 6819.641802][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6819.641802][   T73] 
[ 6829.791759][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6829.792235][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6829.792235][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6829.792235][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6829.792235][   T73]      fib6_nh_init+0xa22/0x1580
[ 6829.792235][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6829.792235][   T73]      ip6_route_add+0x1c/0x140
[ 6829.792235][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6829.792235][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6829.792235][   T73]      netlink_rcv_skb+0x130/0x360
[ 6829.792235][   T73]      netlink_unicast+0x449/0x710
[ 6829.792235][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6829.792235][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6829.792235][   T73]      ___sys_sendmsg+0xee/0x170
[ 6829.792235][   T73]      __sys_sendmsg+0xcd/0x170
[ 6829.792235][   T73]      do_syscall_64+0xc6/0x1e0
[ 6829.792235][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6829.792235][   T73] 
[ 6829.794140][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6829.794140][   T73]      dst_init+0x84/0x4a0
[ 6829.794140][   T73]      dst_alloc+0x97/0x150
[ 6829.794140][   T73]      ip6_dst_alloc+0x23/0x90
[ 6829.794140][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6829.794140][   T73]      ip6_pol_route+0x56f/0x840
[ 6829.794140][   T73]      fib6_rule_lookup+0x456/0x630
[ 6829.794140][   T73]      ip6_route_input+0x59c/0xa50
[ 6829.794140][   T73]      ipv6_rcv+0x397/0x810
[ 6829.794140][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6829.794140][   T73]      process_backlog+0x101/0x620
[ 6829.794140][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6829.794140][   T73]      net_rx_action+0x495/0xbe0
[ 6829.794140][   T73]      __do_softirq+0x1b5/0x7f6
[ 6829.794140][   T73] 
[ 6829.795777][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6829.795777][   T73]      netdev_get_by_index+0x5e/0x80
[ 6829.795777][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6829.795777][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6829.795777][   T73]      ip6_route_add+0x1c/0x140
[ 6829.795777][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6829.795777][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6829.795777][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6829.795777][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6829.795777][   T73]      netlink_rcv_skb+0x130/0x360
[ 6829.795777][   T73]      netlink_unicast+0x449/0x710
[ 6829.795777][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6829.795777][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6829.795777][   T73]      ___sys_sendmsg+0xee/0x170
[ 6829.795777][   T73]      __sys_sendmsg+0xcd/0x170
[ 6829.795777][   T73]      do_syscall_64+0xc6/0x1e0
[ 6829.795777][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6829.795777][   T73] 
[ 6829.797772][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6829.797772][   T73]      netdev_get_by_index+0x5e/0x80
[ 6829.797772][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6829.797772][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6829.797772][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6829.797772][   T73]      ipv6_add_addr+0x411/0x2000
[ 6829.797772][   T73]      inet6_addr_add+0x30e/0xa40
[ 6829.797772][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6829.797772][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6829.797772][   T73]      netlink_rcv_skb+0x130/0x360
[ 6829.797772][   T73]      netlink_unicast+0x449/0x710
[ 6829.797772][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6829.797772][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6829.797772][   T73]      ___sys_sendmsg+0xee/0x170
[ 6829.797772][   T73]      __sys_sendmsg+0xcd/0x170
[ 6829.797772][   T73]      do_syscall_64+0xc6/0x1e0
[ 6829.797772][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6829.797772][   T73] 
[ 6829.799772][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6829.799772][   T73]      netdev_get_by_index+0x5e/0x80
[ 6829.799772][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6829.799772][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6829.799772][   T73]      ip6_route_add+0x1c/0x140
[ 6829.799772][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6829.799772][   T73]      addrconf_add_dev+0xe2/0x170
[ 6829.799772][   T73]      inet6_addr_add+0x12f/0xa40
[ 6829.799772][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6829.799772][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6829.799772][   T73]      netlink_rcv_skb+0x130/0x360
[ 6829.799772][   T73]      netlink_unicast+0x449/0x710
[ 6829.799772][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6829.799772][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6829.799772][   T73]      ___sys_sendmsg+0xee/0x170
[ 6829.799772][   T73]      __sys_sendmsg+0xcd/0x170
[ 6829.799772][   T73]      do_syscall_64+0xc6/0x1e0
[ 6829.799772][   T73] 
[ 6829.801730][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6829.801730][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6829.801730][   T73]      ipv6_find_idev+0x102/0x170
[ 6829.801730][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6829.801730][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6829.801730][   T73]      netlink_rcv_skb+0x130/0x360
[ 6829.801730][   T73]      netlink_unicast+0x449/0x710
[ 6829.801730][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6829.801730][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6829.801730][   T73]      ___sys_sendmsg+0xee/0x170
[ 6829.801730][   T73]      __sys_sendmsg+0xcd/0x170
[ 6829.801730][   T73]      do_syscall_64+0xc6/0x1e0
[ 6829.801730][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6829.801730][   T73] 
[ 6829.803285][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6829.803285][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6829.803285][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6829.803285][   T73]      ipv6_find_idev+0x102/0x170
[ 6829.803285][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6829.803285][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6829.803285][   T73]      netlink_rcv_skb+0x130/0x360
[ 6829.803285][   T73]      netlink_unicast+0x449/0x710
[ 6829.803285][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6829.803285][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6829.803285][   T73]      ___sys_sendmsg+0xee/0x170
[ 6829.803285][   T73]      __sys_sendmsg+0xcd/0x170
[ 6829.803285][   T73]      do_syscall_64+0xc6/0x1e0
[ 6829.803285][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6829.803285][   T73] 
[ 6829.804973][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6829.805246][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6829.805246][   T73]      netdev_get_by_index+0x5e/0x80
[ 6829.805246][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6829.805246][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6829.805246][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6829.805246][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6829.805246][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6829.805246][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6829.805246][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6829.805246][   T73]      addrconf_dad_begin+0x310/0x670
[ 6829.805246][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6829.805246][   T73]      process_one_work+0x84d/0x18a0
[ 6829.805246][   T73]      worker_thread+0x587/0xd30
[ 6829.805246][   T73]      kthread+0x28a/0x350
[ 6829.805246][   T73]      ret_from_fork+0x31/0x70
[ 6829.805246][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6829.805246][   T73] 
[ 6829.807172][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6829.807172][   T73]      netdev_get_by_index+0x5e/0x80
[ 6829.807172][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6829.807172][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6829.807172][   T73]      ip6_route_add+0x1c/0x140
[ 6829.807172][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6829.807172][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6829.807172][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6829.807172][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6829.807172][   T73]      netlink_rcv_skb+0x130/0x360
[ 6829.807172][   T73]      netlink_unicast+0x449/0x710
[ 6829.807172][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6829.807172][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6829.807172][   T73]      ___sys_sendmsg+0xee/0x170
[ 6829.807172][   T73]      __sys_sendmsg+0xcd/0x170
[ 6829.807172][   T73]      do_syscall_64+0xc6/0x1e0
[ 6829.807172][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6829.807172][   T73] 
[ 6829.809168][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6829.809168][   T73]      netdev_get_by_index+0x5e/0x80
[ 6829.809168][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6829.809168][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6829.809168][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6829.809168][   T73]      ipv6_add_addr+0x411/0x2000
[ 6829.809168][   T73]      inet6_addr_add+0x30e/0xa40
[ 6829.809168][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6829.809168][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6829.809168][   T73]      netlink_rcv_skb+0x130/0x360
[ 6829.809168][   T73]      netlink_unicast+0x449/0x710
[ 6829.809168][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6829.809168][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6829.809168][   T73]      ___sys_sendmsg+0xee/0x170
[ 6829.809168][   T73]      __sys_sendmsg+0xcd/0x170
[ 6829.809168][   T73]      do_syscall_64+0xc6/0x1e0
[ 6829.809168][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6829.809168][   T73] 
[ 6829.811185][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6829.811185][   T73]      netdev_get_by_index+0x5e/0x80
[ 6829.811185][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6829.811185][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6829.811185][   T73]      ip6_route_add+0x1c/0x140
[ 6829.811185][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6829.811185][   T73]      addrconf_add_dev+0xe2/0x170
[ 6829.811185][   T73]      inet6_addr_add+0x12f/0xa40
[ 6829.811185][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6829.811185][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6829.811185][   T73]      netlink_rcv_skb+0x130/0x360
[ 6829.811185][   T73]      netlink_unicast+0x449/0x710
[ 6829.811185][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6829.811185][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6829.811185][   T73]      ___sys_sendmsg+0xee/0x170
[ 6829.811185][   T73]      __sys_sendmsg+0xcd/0x170
[ 6829.811185][   T73]      do_syscall_64+0xc6/0x1e0
[ 6829.811185][   T73] 
[ 6829.813158][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6829.813158][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6829.813158][   T73]      ipv6_find_idev+0x102/0x170
[ 6829.813158][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6829.813158][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6829.813158][   T73]      netlink_rcv_skb+0x130/0x360
[ 6829.813158][   T73]      netlink_unicast+0x449/0x710
[ 6829.813158][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6829.813158][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6829.813158][   T73]      ___sys_sendmsg+0xee/0x170
[ 6829.813158][   T73]      __sys_sendmsg+0xcd/0x170
[ 6829.813158][   T73]      do_syscall_64+0xc6/0x1e0
[ 6829.813158][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6829.813158][   T73] 
[ 6829.814713][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6829.814713][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6829.814713][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6829.814713][   T73]      ipv6_find_idev+0x102/0x170
[ 6829.814713][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6829.814713][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6829.814713][   T73]      netlink_rcv_skb+0x130/0x360
[ 6829.814713][   T73]      netlink_unicast+0x449/0x710
[ 6829.814713][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6829.814713][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6829.814713][   T73]      ___sys_sendmsg+0xee/0x170
[ 6829.814713][   T73]      __sys_sendmsg+0xcd/0x170
[ 6829.814713][   T73]      do_syscall_64+0xc6/0x1e0
[ 6829.814713][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6829.814713][   T73] 
[ 6829.816396][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6829.816662][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6829.816662][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6829.816662][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6829.816662][   T73]      fib6_nh_init+0xa22/0x1580
[ 6829.816662][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6829.816662][   T73]      ip6_route_add+0x1c/0x140
[ 6829.816662][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6829.816662][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6829.816662][   T73]      netlink_rcv_skb+0x130/0x360
[ 6829.816662][   T73]      netlink_unicast+0x449/0x710
[ 6829.816662][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6829.816662][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6829.816662][   T73]      ___sys_sendmsg+0xee/0x170
[ 6829.816662][   T73]      __sys_sendmsg+0xcd/0x170
[ 6829.816662][   T73]      do_syscall_64+0xc6/0x1e0
[ 6829.816662][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6829.816662][   T73] 
[ 6829.818726][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6829.818726][   T73]      dst_init+0x84/0x4a0
[ 6829.818726][   T73]      dst_alloc+0x97/0x150
[ 6829.818726][   T73]      ip6_dst_alloc+0x23/0x90
[ 6829.818726][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6829.818726][   T73]      ip6_pol_route+0x56f/0x840
[ 6829.818726][   T73]      fib6_rule_lookup+0x456/0x630
[ 6829.818726][   T73]      ip6_route_input+0x59c/0xa50
[ 6829.818726][   T73]      ipv6_rcv+0x397/0x810
[ 6829.818726][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6829.818726][   T73]      process_backlog+0x101/0x620
[ 6829.818726][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6829.818726][   T73]      net_rx_action+0x495/0xbe0
[ 6829.818726][   T73]      __do_softirq+0x1b5/0x7f6
[ 6829.818726][   T73] 
[ 6829.820540][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6829.820540][   T73]      netdev_get_by_index+0x5e/0x80
[ 6829.820540][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6829.820540][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6829.820540][   T73]      ip6_route_add+0x1c/0x140
[ 6829.820540][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6829.820540][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6829.820540][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6829.820540][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6829.820540][   T73]      netlink_rcv_skb+0x130/0x360
[ 6829.820540][   T73]      netlink_unicast+0x449/0x710
[ 6829.820540][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6829.820540][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6829.820540][   T73]      ___sys_sendmsg+0xee/0x170
[ 6829.820540][   T73]      __sys_sendmsg+0xcd/0x170
[ 6829.820540][   T73]      do_syscall_64+0xc6/0x1e0
[ 6829.820540][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6829.820540][   T73] 
[ 6829.822788][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6829.822788][   T73]      netdev_get_by_index+0x5e/0x80
[ 6829.822788][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6829.822788][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6829.822788][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6829.822788][   T73]      ipv6_add_addr+0x411/0x2000
[ 6829.822788][   T73]      inet6_addr_add+0x30e/0xa40
[ 6829.822788][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6829.822788][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6829.822788][   T73]      netlink_rcv_skb+0x130/0x360
[ 6829.822788][   T73]      netlink_unicast+0x449/0x710
[ 6829.822788][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6829.822788][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6829.822788][   T73]      ___sys_sendmsg+0xee/0x170
[ 6829.822788][   T73]      __sys_sendmsg+0xcd/0x170
[ 6829.822788][   T73]      do_syscall_64+0xc6/0x1e0
[ 6829.822788][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6829.822788][   T73] 
[ 6829.825089][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6829.825089][   T73]      netdev_get_by_index+0x5e/0x80
[ 6829.825089][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6829.825089][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6829.825089][   T73]      ip6_route_add+0x1c/0x140
[ 6829.825089][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6829.825089][   T73]      addrconf_add_dev+0xe2/0x170
[ 6829.825089][   T73]      inet6_addr_add+0x12f/0xa40
[ 6829.825089][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6829.825089][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6829.825089][   T73]      netlink_rcv_skb+0x130/0x360
[ 6829.825089][   T73]      netlink_unicast+0x449/0x710
[ 6829.825089][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6829.825089][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6829.825089][   T73]      ___sys_sendmsg+0xee/0x170
[ 6829.825089][   T73]      __sys_sendmsg+0xcd/0x170
[ 6829.825089][   T73]      do_syscall_64+0xc6/0x1e0
[ 6829.825089][   T73] 
[ 6829.827164][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6829.827164][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6829.827164][   T73]      ipv6_find_idev+0x102/0x170
[ 6829.827164][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6829.827164][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6829.827164][   T73]      netlink_rcv_skb+0x130/0x360
[ 6829.827164][   T73]      netlink_unicast+0x449/0x710
[ 6829.827164][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6829.827164][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6829.827164][   T73]      ___sys_sendmsg+0xee/0x170
[ 6829.827164][   T73]      __sys_sendmsg+0xcd/0x170
[ 6829.827164][   T73]      do_syscall_64+0xc6/0x1e0
[ 6829.827164][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6829.827164][   T73] 
[ 6829.828883][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6829.828883][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6829.828883][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6829.828883][   T73]      ipv6_find_idev+0x102/0x170
[ 6829.828883][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6829.828883][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6829.828883][   T73]      netlink_rcv_skb+0x130/0x360
[ 6829.828883][   T73]      netlink_unicast+0x449/0x710
[ 6829.828883][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6829.828883][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6829.828883][   T73]      ___sys_sendmsg+0xee/0x170
[ 6829.828883][   T73]      __sys_sendmsg+0xcd/0x170
[ 6829.828883][   T73]      do_syscall_64+0xc6/0x1e0
[ 6829.828883][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6829.828883][   T73] 
[ 6829.830803][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6829.831073][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6829.831073][   T73]      netdev_get_by_index+0x5e/0x80
[ 6829.831073][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6829.831073][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6829.831073][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6829.831073][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6829.831073][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6829.831073][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6829.831073][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6829.831073][   T73]      addrconf_dad_begin+0x310/0x670
[ 6829.831073][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6829.831073][   T73]      process_one_work+0x84d/0x18a0
[ 6829.831073][   T73]      worker_thread+0x587/0xd30
[ 6829.831073][   T73]      kthread+0x28a/0x350
[ 6829.831073][   T73]      ret_from_fork+0x31/0x70
[ 6829.831073][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6829.831073][   T73] 
[ 6829.833237][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6829.833237][   T73]      netdev_get_by_index+0x5e/0x80
[ 6829.833237][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6829.833237][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6829.833237][   T73]      ip6_route_add+0x1c/0x140
[ 6829.833237][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6829.833237][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6829.833237][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6829.833237][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6829.833237][   T73]      netlink_rcv_skb+0x130/0x360
[ 6829.833237][   T73]      netlink_unicast+0x449/0x710
[ 6829.833237][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6829.833237][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6829.833237][   T73]      ___sys_sendmsg+0xee/0x170
[ 6829.833237][   T73]      __sys_sendmsg+0xcd/0x170
[ 6829.833237][   T73]      do_syscall_64+0xc6/0x1e0
[ 6829.833237][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6829.833237][   T73] 
[ 6829.835485][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6829.835485][   T73]      netdev_get_by_index+0x5e/0x80
[ 6829.835485][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6829.835485][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6829.835485][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6829.835485][   T73]      ipv6_add_addr+0x411/0x2000
[ 6829.835485][   T73]      inet6_addr_add+0x30e/0xa40
[ 6829.835485][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6829.835485][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6829.835485][   T73]      netlink_rcv_skb+0x130/0x360
[ 6829.835485][   T73]      netlink_unicast+0x449/0x710
[ 6829.835485][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6829.835485][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6829.835485][   T73]      ___sys_sendmsg+0xee/0x170
[ 6829.835485][   T73]      __sys_sendmsg+0xcd/0x170
[ 6829.835485][   T73]      do_syscall_64+0xc6/0x1e0
[ 6829.835485][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6829.835485][   T73] 
[ 6829.837723][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6829.837723][   T73]      netdev_get_by_index+0x5e/0x80
[ 6829.837723][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6829.837723][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6829.837723][   T73]      ip6_route_add+0x1c/0x140
[ 6829.837723][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6829.837723][   T73]      addrconf_add_dev+0xe2/0x170
[ 6829.837723][   T73]      inet6_addr_add+0x12f/0xa40
[ 6829.837723][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6829.837723][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6829.837723][   T73]      netlink_rcv_skb+0x130/0x360
[ 6829.837723][   T73]      netlink_unicast+0x449/0x710
[ 6829.837723][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6829.837723][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6829.837723][   T73]      ___sys_sendmsg+0xee/0x170
[ 6829.837723][   T73]      __sys_sendmsg+0xcd/0x170
[ 6829.837723][   T73]      do_syscall_64+0xc6/0x1e0
[ 6829.837723][   T73] 
[ 6829.839923][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6829.839923][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6829.839923][   T73]      ipv6_find_idev+0x102/0x170
[ 6829.839923][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6829.839923][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6829.839923][   T73]      netlink_rcv_skb+0x130/0x360
[ 6829.839923][   T73]      netlink_unicast+0x449/0x710
[ 6829.839923][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6829.839923][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6829.839923][   T73]      ___sys_sendmsg+0xee/0x170
[ 6829.839923][   T73]      __sys_sendmsg+0xcd/0x170
[ 6829.839923][   T73]      do_syscall_64+0xc6/0x1e0
[ 6829.839923][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6829.839923][   T73] 
[ 6829.841650][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6829.841650][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6829.841650][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6829.841650][   T73]      ipv6_find_idev+0x102/0x170
[ 6829.841650][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6829.841650][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6829.841650][   T73]      netlink_rcv_skb+0x130/0x360
[ 6829.841650][   T73]      netlink_unicast+0x449/0x710
[ 6829.841650][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6829.841650][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6829.841650][   T73]      ___sys_sendmsg+0xee/0x170
[ 6829.841650][   T73]      __sys_sendmsg+0xcd/0x170
[ 6829.841650][   T73]      do_syscall_64+0xc6/0x1e0
[ 6829.841650][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6829.841650][   T73] 
[ 6840.079763][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6840.080240][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6840.080240][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6840.080240][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6840.080240][   T73]      fib6_nh_init+0xa22/0x1580
[ 6840.080240][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6840.080240][   T73]      ip6_route_add+0x1c/0x140
[ 6840.080240][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6840.080240][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6840.080240][   T73]      netlink_rcv_skb+0x130/0x360
[ 6840.080240][   T73]      netlink_unicast+0x449/0x710
[ 6840.080240][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6840.080240][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6840.080240][   T73]      ___sys_sendmsg+0xee/0x170
[ 6840.080240][   T73]      __sys_sendmsg+0xcd/0x170
[ 6840.080240][   T73]      do_syscall_64+0xc6/0x1e0
[ 6840.080240][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6840.080240][   T73] 
[ 6840.082184][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6840.082184][   T73]      dst_init+0x84/0x4a0
[ 6840.082184][   T73]      dst_alloc+0x97/0x150
[ 6840.082184][   T73]      ip6_dst_alloc+0x23/0x90
[ 6840.082184][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6840.082184][   T73]      ip6_pol_route+0x56f/0x840
[ 6840.082184][   T73]      fib6_rule_lookup+0x456/0x630
[ 6840.082184][   T73]      ip6_route_input+0x59c/0xa50
[ 6840.082184][   T73]      ipv6_rcv+0x397/0x810
[ 6840.082184][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6840.082184][   T73]      process_backlog+0x101/0x620
[ 6840.082184][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6840.082184][   T73]      net_rx_action+0x495/0xbe0
[ 6840.082184][   T73]      __do_softirq+0x1b5/0x7f6
[ 6840.082184][   T73] 
[ 6840.083874][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6840.083874][   T73]      netdev_get_by_index+0x5e/0x80
[ 6840.083874][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6840.083874][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6840.083874][   T73]      ip6_route_add+0x1c/0x140
[ 6840.083874][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6840.083874][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6840.083874][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6840.083874][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6840.083874][   T73]      netlink_rcv_skb+0x130/0x360
[ 6840.083874][   T73]      netlink_unicast+0x449/0x710
[ 6840.083874][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6840.083874][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6840.083874][   T73]      ___sys_sendmsg+0xee/0x170
[ 6840.083874][   T73]      __sys_sendmsg+0xcd/0x170
[ 6840.083874][   T73]      do_syscall_64+0xc6/0x1e0
[ 6840.083874][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6840.083874][   T73] 
[ 6840.085930][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6840.085930][   T73]      netdev_get_by_index+0x5e/0x80
[ 6840.085930][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6840.085930][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6840.085930][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6840.085930][   T73]      ipv6_add_addr+0x411/0x2000
[ 6840.085930][   T73]      inet6_addr_add+0x30e/0xa40
[ 6840.085930][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6840.085930][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6840.085930][   T73]      netlink_rcv_skb+0x130/0x360
[ 6840.085930][   T73]      netlink_unicast+0x449/0x710
[ 6840.085930][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6840.085930][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6840.085930][   T73]      ___sys_sendmsg+0xee/0x170
[ 6840.085930][   T73]      __sys_sendmsg+0xcd/0x170
[ 6840.085930][   T73]      do_syscall_64+0xc6/0x1e0
[ 6840.085930][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6840.085930][   T73] 
[ 6840.087951][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6840.087951][   T73]      netdev_get_by_index+0x5e/0x80
[ 6840.087951][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6840.087951][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6840.087951][   T73]      ip6_route_add+0x1c/0x140
[ 6840.087951][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6840.087951][   T73]      addrconf_add_dev+0xe2/0x170
[ 6840.087951][   T73]      inet6_addr_add+0x12f/0xa40
[ 6840.087951][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6840.087951][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6840.087951][   T73]      netlink_rcv_skb+0x130/0x360
[ 6840.087951][   T73]      netlink_unicast+0x449/0x710
[ 6840.087951][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6840.087951][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6840.087951][   T73]      ___sys_sendmsg+0xee/0x170
[ 6840.087951][   T73]      __sys_sendmsg+0xcd/0x170
[ 6840.087951][   T73]      do_syscall_64+0xc6/0x1e0
[ 6840.087951][   T73] 
[ 6840.089949][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6840.089949][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6840.089949][   T73]      ipv6_find_idev+0x102/0x170
[ 6840.089949][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6840.089949][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6840.089949][   T73]      netlink_rcv_skb+0x130/0x360
[ 6840.089949][   T73]      netlink_unicast+0x449/0x710
[ 6840.089949][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6840.089949][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6840.089949][   T73]      ___sys_sendmsg+0xee/0x170
[ 6840.089949][   T73]      __sys_sendmsg+0xcd/0x170
[ 6840.089949][   T73]      do_syscall_64+0xc6/0x1e0
[ 6840.089949][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6840.089949][   T73] 
[ 6840.091521][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6840.091521][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6840.091521][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6840.091521][   T73]      ipv6_find_idev+0x102/0x170
[ 6840.091521][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6840.091521][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6840.091521][   T73]      netlink_rcv_skb+0x130/0x360
[ 6840.091521][   T73]      netlink_unicast+0x449/0x710
[ 6840.091521][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6840.091521][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6840.091521][   T73]      ___sys_sendmsg+0xee/0x170
[ 6840.091521][   T73]      __sys_sendmsg+0xcd/0x170
[ 6840.091521][   T73]      do_syscall_64+0xc6/0x1e0
[ 6840.091521][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6840.091521][   T73] 
[ 6840.093256][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6840.093547][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6840.093547][   T73]      netdev_get_by_index+0x5e/0x80
[ 6840.093547][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6840.093547][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6840.093547][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6840.093547][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6840.093547][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6840.093547][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6840.093547][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6840.093547][   T73]      addrconf_dad_begin+0x310/0x670
[ 6840.093547][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6840.093547][   T73]      process_one_work+0x84d/0x18a0
[ 6840.093547][   T73]      worker_thread+0x587/0xd30
[ 6840.093547][   T73]      kthread+0x28a/0x350
[ 6840.093547][   T73]      ret_from_fork+0x31/0x70
[ 6840.093547][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6840.093547][   T73] 
[ 6840.095497][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6840.095497][   T73]      netdev_get_by_index+0x5e/0x80
[ 6840.095497][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6840.095497][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6840.095497][   T73]      ip6_route_add+0x1c/0x140
[ 6840.095497][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6840.095497][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6840.095497][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6840.095497][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6840.095497][   T73]      netlink_rcv_skb+0x130/0x360
[ 6840.095497][   T73]      netlink_unicast+0x449/0x710
[ 6840.095497][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6840.095497][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6840.095497][   T73]      ___sys_sendmsg+0xee/0x170
[ 6840.095497][   T73]      __sys_sendmsg+0xcd/0x170
[ 6840.095497][   T73]      do_syscall_64+0xc6/0x1e0
[ 6840.095497][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6840.095497][   T73] 
[ 6840.097541][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6840.097541][   T73]      netdev_get_by_index+0x5e/0x80
[ 6840.097541][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6840.097541][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6840.097541][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6840.097541][   T73]      ipv6_add_addr+0x411/0x2000
[ 6840.097541][   T73]      inet6_addr_add+0x30e/0xa40
[ 6840.097541][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6840.097541][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6840.097541][   T73]      netlink_rcv_skb+0x130/0x360
[ 6840.097541][   T73]      netlink_unicast+0x449/0x710
[ 6840.097541][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6840.097541][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6840.097541][   T73]      ___sys_sendmsg+0xee/0x170
[ 6840.097541][   T73]      __sys_sendmsg+0xcd/0x170
[ 6840.097541][   T73]      do_syscall_64+0xc6/0x1e0
[ 6840.097541][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6840.097541][   T73] 
[ 6840.099570][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6840.099570][   T73]      netdev_get_by_index+0x5e/0x80
[ 6840.099570][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6840.099570][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6840.099570][   T73]      ip6_route_add+0x1c/0x140
[ 6840.099570][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6840.099570][   T73]      addrconf_add_dev+0xe2/0x170
[ 6840.099570][   T73]      inet6_addr_add+0x12f/0xa40
[ 6840.099570][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6840.099570][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6840.099570][   T73]      netlink_rcv_skb+0x130/0x360
[ 6840.099570][   T73]      netlink_unicast+0x449/0x710
[ 6840.099570][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6840.099570][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6840.099570][   T73]      ___sys_sendmsg+0xee/0x170
[ 6840.099570][   T73]      __sys_sendmsg+0xcd/0x170
[ 6840.099570][   T73]      do_syscall_64+0xc6/0x1e0
[ 6840.099570][   T73] 
[ 6840.101577][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6840.101577][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6840.101577][   T73]      ipv6_find_idev+0x102/0x170
[ 6840.101577][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6840.101577][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6840.101577][   T73]      netlink_rcv_skb+0x130/0x360
[ 6840.101577][   T73]      netlink_unicast+0x449/0x710
[ 6840.101577][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6840.101577][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6840.101577][   T73]      ___sys_sendmsg+0xee/0x170
[ 6840.101577][   T73]      __sys_sendmsg+0xcd/0x170
[ 6840.101577][   T73]      do_syscall_64+0xc6/0x1e0
[ 6840.101577][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6840.101577][   T73] 
[ 6840.103153][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6840.103153][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6840.103153][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6840.103153][   T73]      ipv6_find_idev+0x102/0x170
[ 6840.103153][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6840.103153][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6840.103153][   T73]      netlink_rcv_skb+0x130/0x360
[ 6840.103153][   T73]      netlink_unicast+0x449/0x710
[ 6840.103153][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6840.103153][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6840.103153][   T73]      ___sys_sendmsg+0xee/0x170
[ 6840.103153][   T73]      __sys_sendmsg+0xcd/0x170
[ 6840.103153][   T73]      do_syscall_64+0xc6/0x1e0
[ 6840.103153][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6840.103153][   T73] 
[ 6840.104881][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6840.105154][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6840.105154][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6840.105154][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6840.105154][   T73]      fib6_nh_init+0xa22/0x1580
[ 6840.105154][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6840.105154][   T73]      ip6_route_add+0x1c/0x140
[ 6840.105154][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6840.105154][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6840.105154][   T73]      netlink_rcv_skb+0x130/0x360
[ 6840.105154][   T73]      netlink_unicast+0x449/0x710
[ 6840.105154][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6840.105154][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6840.105154][   T73]      ___sys_sendmsg+0xee/0x170
[ 6840.105154][   T73]      __sys_sendmsg+0xcd/0x170
[ 6840.105154][   T73]      do_syscall_64+0xc6/0x1e0
[ 6840.105154][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6840.105154][   T73] 
[ 6840.107264][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6840.107264][   T73]      dst_init+0x84/0x4a0
[ 6840.107264][   T73]      dst_alloc+0x97/0x150
[ 6840.107264][   T73]      ip6_dst_alloc+0x23/0x90
[ 6840.107264][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6840.107264][   T73]      ip6_pol_route+0x56f/0x840
[ 6840.107264][   T73]      fib6_rule_lookup+0x456/0x630
[ 6840.107264][   T73]      ip6_route_input+0x59c/0xa50
[ 6840.107264][   T73]      ipv6_rcv+0x397/0x810
[ 6840.107264][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6840.107264][   T73]      process_backlog+0x101/0x620
[ 6840.107264][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6840.107264][   T73]      net_rx_action+0x495/0xbe0
[ 6840.107264][   T73]      __do_softirq+0x1b5/0x7f6
[ 6840.107264][   T73] 
[ 6840.109171][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6840.109171][   T73]      netdev_get_by_index+0x5e/0x80
[ 6840.109171][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6840.109171][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6840.109171][   T73]      ip6_route_add+0x1c/0x140
[ 6840.109171][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6840.109171][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6840.109171][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6840.109171][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6840.109171][   T73]      netlink_rcv_skb+0x130/0x360
[ 6840.109171][   T73]      netlink_unicast+0x449/0x710
[ 6840.109171][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6840.109171][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6840.109171][   T73]      ___sys_sendmsg+0xee/0x170
[ 6840.109171][   T73]      __sys_sendmsg+0xcd/0x170
[ 6840.109171][   T73]      do_syscall_64+0xc6/0x1e0
[ 6840.109171][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6840.109171][   T73] 
[ 6840.111449][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6840.111449][   T73]      netdev_get_by_index+0x5e/0x80
[ 6840.111449][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6840.111449][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6840.111449][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6840.111449][   T73]      ipv6_add_addr+0x411/0x2000
[ 6840.111449][   T73]      inet6_addr_add+0x30e/0xa40
[ 6840.111449][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6840.111449][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6840.111449][   T73]      netlink_rcv_skb+0x130/0x360
[ 6840.111449][   T73]      netlink_unicast+0x449/0x710
[ 6840.111449][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6840.111449][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6840.111449][   T73]      ___sys_sendmsg+0xee/0x170
[ 6840.111449][   T73]      __sys_sendmsg+0xcd/0x170
[ 6840.111449][   T73]      do_syscall_64+0xc6/0x1e0
[ 6840.111449][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6840.111449][   T73] 
[ 6840.113740][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6840.113740][   T73]      netdev_get_by_index+0x5e/0x80
[ 6840.113740][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6840.113740][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6840.113740][   T73]      ip6_route_add+0x1c/0x140
[ 6840.113740][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6840.113740][   T73]      addrconf_add_dev+0xe2/0x170
[ 6840.113740][   T73]      inet6_addr_add+0x12f/0xa40
[ 6840.113740][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6840.113740][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6840.113740][   T73]      netlink_rcv_skb+0x130/0x360
[ 6840.113740][   T73]      netlink_unicast+0x449/0x710
[ 6840.113740][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6840.113740][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6840.113740][   T73]      ___sys_sendmsg+0xee/0x170
[ 6840.113740][   T73]      __sys_sendmsg+0xcd/0x170
[ 6840.113740][   T73]      do_syscall_64+0xc6/0x1e0
[ 6840.113740][   T73] 
[ 6840.115979][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6840.115979][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6840.115979][   T73]      ipv6_find_idev+0x102/0x170
[ 6840.115979][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6840.115979][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6840.115979][   T73]      netlink_rcv_skb+0x130/0x360
[ 6840.115979][   T73]      netlink_unicast+0x449/0x710
[ 6840.115979][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6840.115979][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6840.115979][   T73]      ___sys_sendmsg+0xee/0x170
[ 6840.115979][   T73]      __sys_sendmsg+0xcd/0x170
[ 6840.115979][   T73]      do_syscall_64+0xc6/0x1e0
[ 6840.115979][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6840.115979][   T73] 
[ 6840.117788][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6840.117788][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6840.117788][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6840.117788][   T73]      ipv6_find_idev+0x102/0x170
[ 6840.117788][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6840.117788][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6840.117788][   T73]      netlink_rcv_skb+0x130/0x360
[ 6840.117788][   T73]      netlink_unicast+0x449/0x710
[ 6840.117788][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6840.117788][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6840.117788][   T73]      ___sys_sendmsg+0xee/0x170
[ 6840.117788][   T73]      __sys_sendmsg+0xcd/0x170
[ 6840.117788][   T73]      do_syscall_64+0xc6/0x1e0
[ 6840.117788][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6840.117788][   T73] 
[ 6840.119682][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6840.119963][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6840.119963][   T73]      netdev_get_by_index+0x5e/0x80
[ 6840.119963][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6840.119963][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6840.119963][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6840.119963][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6840.119963][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6840.119963][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6840.119963][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6840.119963][   T73]      addrconf_dad_begin+0x310/0x670
[ 6840.119963][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6840.119963][   T73]      process_one_work+0x84d/0x18a0
[ 6840.119963][   T73]      worker_thread+0x587/0xd30
[ 6840.119963][   T73]      kthread+0x28a/0x350
[ 6840.119963][   T73]      ret_from_fork+0x31/0x70
[ 6840.119963][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6840.119963][   T73] 
[ 6840.122143][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6840.122143][   T73]      netdev_get_by_index+0x5e/0x80
[ 6840.122143][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6840.122143][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6840.122143][   T73]      ip6_route_add+0x1c/0x140
[ 6840.122143][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6840.122143][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6840.122143][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6840.122143][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6840.122143][   T73]      netlink_rcv_skb+0x130/0x360
[ 6840.122143][   T73]      netlink_unicast+0x449/0x710
[ 6840.122143][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6840.122143][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6840.122143][   T73]      ___sys_sendmsg+0xee/0x170
[ 6840.122143][   T73]      __sys_sendmsg+0xcd/0x170
[ 6840.122143][   T73]      do_syscall_64+0xc6/0x1e0
[ 6840.122143][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6840.122143][   T73] 
[ 6840.124414][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6840.124414][   T73]      netdev_get_by_index+0x5e/0x80
[ 6840.124414][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6840.124414][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6840.124414][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6840.124414][   T73]      ipv6_add_addr+0x411/0x2000
[ 6840.124414][   T73]      inet6_addr_add+0x30e/0xa40
[ 6840.124414][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6840.124414][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6840.124414][   T73]      netlink_rcv_skb+0x130/0x360
[ 6840.124414][   T73]      netlink_unicast+0x449/0x710
[ 6840.124414][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6840.124414][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6840.124414][   T73]      ___sys_sendmsg+0xee/0x170
[ 6840.124414][   T73]      __sys_sendmsg+0xcd/0x170
[ 6840.124414][   T73]      do_syscall_64+0xc6/0x1e0
[ 6840.124414][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6840.124414][   T73] 
[ 6840.126751][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6840.126751][   T73]      netdev_get_by_index+0x5e/0x80
[ 6840.126751][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6840.126751][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6840.126751][   T73]      ip6_route_add+0x1c/0x140
[ 6840.126751][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6840.126751][   T73]      addrconf_add_dev+0xe2/0x170
[ 6840.126751][   T73]      inet6_addr_add+0x12f/0xa40
[ 6840.126751][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6840.126751][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6840.126751][   T73]      netlink_rcv_skb+0x130/0x360
[ 6840.126751][   T73]      netlink_unicast+0x449/0x710
[ 6840.126751][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6840.126751][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6840.126751][   T73]      ___sys_sendmsg+0xee/0x170
[ 6840.126751][   T73]      __sys_sendmsg+0xcd/0x170
[ 6840.126751][   T73]      do_syscall_64+0xc6/0x1e0
[ 6840.126751][   T73] 
[ 6840.128915][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6840.128915][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6840.128915][   T73]      ipv6_find_idev+0x102/0x170
[ 6840.128915][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6840.128915][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6840.128915][   T73]      netlink_rcv_skb+0x130/0x360
[ 6840.128915][   T73]      netlink_unicast+0x449/0x710
[ 6840.128915][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6840.128915][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6840.128915][   T73]      ___sys_sendmsg+0xee/0x170
[ 6840.128915][   T73]      __sys_sendmsg+0xcd/0x170
[ 6840.128915][   T73]      do_syscall_64+0xc6/0x1e0
[ 6840.128915][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6840.128915][   T73] 
[ 6840.130659][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6840.130659][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6840.130659][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6840.130659][   T73]      ipv6_find_idev+0x102/0x170
[ 6840.130659][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6840.130659][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6840.130659][   T73]      netlink_rcv_skb+0x130/0x360
[ 6840.130659][   T73]      netlink_unicast+0x449/0x710
[ 6840.130659][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6840.130659][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6840.130659][   T73]      ___sys_sendmsg+0xee/0x170
[ 6840.130659][   T73]      __sys_sendmsg+0xcd/0x170
[ 6840.130659][   T73]      do_syscall_64+0xc6/0x1e0
[ 6840.130659][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6840.130659][   T73] 
[ 6850.375752][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6850.376222][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6850.376222][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6850.376222][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6850.376222][   T73]      fib6_nh_init+0xa22/0x1580
[ 6850.376222][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6850.376222][   T73]      ip6_route_add+0x1c/0x140
[ 6850.376222][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6850.376222][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6850.376222][   T73]      netlink_rcv_skb+0x130/0x360
[ 6850.376222][   T73]      netlink_unicast+0x449/0x710
[ 6850.376222][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6850.376222][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6850.376222][   T73]      ___sys_sendmsg+0xee/0x170
[ 6850.376222][   T73]      __sys_sendmsg+0xcd/0x170
[ 6850.376222][   T73]      do_syscall_64+0xc6/0x1e0
[ 6850.376222][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6850.376222][   T73] 
[ 6850.378160][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6850.378160][   T73]      dst_init+0x84/0x4a0
[ 6850.378160][   T73]      dst_alloc+0x97/0x150
[ 6850.378160][   T73]      ip6_dst_alloc+0x23/0x90
[ 6850.378160][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6850.378160][   T73]      ip6_pol_route+0x56f/0x840
[ 6850.378160][   T73]      fib6_rule_lookup+0x456/0x630
[ 6850.378160][   T73]      ip6_route_input+0x59c/0xa50
[ 6850.378160][   T73]      ipv6_rcv+0x397/0x810
[ 6850.378160][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6850.378160][   T73]      process_backlog+0x101/0x620
[ 6850.378160][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6850.378160][   T73]      net_rx_action+0x495/0xbe0
[ 6850.378160][   T73]      __do_softirq+0x1b5/0x7f6
[ 6850.378160][   T73] 
[ 6850.379813][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6850.379813][   T73]      netdev_get_by_index+0x5e/0x80
[ 6850.379813][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6850.379813][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6850.379813][   T73]      ip6_route_add+0x1c/0x140
[ 6850.379813][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6850.379813][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6850.379813][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6850.379813][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6850.379813][   T73]      netlink_rcv_skb+0x130/0x360
[ 6850.379813][   T73]      netlink_unicast+0x449/0x710
[ 6850.379813][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6850.379813][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6850.379813][   T73]      ___sys_sendmsg+0xee/0x170
[ 6850.379813][   T73]      __sys_sendmsg+0xcd/0x170
[ 6850.379813][   T73]      do_syscall_64+0xc6/0x1e0
[ 6850.379813][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6850.379813][   T73] 
[ 6850.381830][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6850.381830][   T73]      netdev_get_by_index+0x5e/0x80
[ 6850.381830][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6850.381830][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6850.381830][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6850.381830][   T73]      ipv6_add_addr+0x411/0x2000
[ 6850.381830][   T73]      inet6_addr_add+0x30e/0xa40
[ 6850.381830][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6850.381830][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6850.381830][   T73]      netlink_rcv_skb+0x130/0x360
[ 6850.381830][   T73]      netlink_unicast+0x449/0x710
[ 6850.381830][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6850.381830][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6850.381830][   T73]      ___sys_sendmsg+0xee/0x170
[ 6850.381830][   T73]      __sys_sendmsg+0xcd/0x170
[ 6850.381830][   T73]      do_syscall_64+0xc6/0x1e0
[ 6850.381830][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6850.381830][   T73] 
[ 6850.383862][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6850.383862][   T73]      netdev_get_by_index+0x5e/0x80
[ 6850.383862][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6850.383862][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6850.383862][   T73]      ip6_route_add+0x1c/0x140
[ 6850.383862][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6850.383862][   T73]      addrconf_add_dev+0xe2/0x170
[ 6850.383862][   T73]      inet6_addr_add+0x12f/0xa40
[ 6850.383862][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6850.383862][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6850.383862][   T73]      netlink_rcv_skb+0x130/0x360
[ 6850.383862][   T73]      netlink_unicast+0x449/0x710
[ 6850.383862][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6850.383862][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6850.383862][   T73]      ___sys_sendmsg+0xee/0x170
[ 6850.383862][   T73]      __sys_sendmsg+0xcd/0x170
[ 6850.383862][   T73]      do_syscall_64+0xc6/0x1e0
[ 6850.383862][   T73] 
[ 6850.385841][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6850.385841][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6850.385841][   T73]      ipv6_find_idev+0x102/0x170
[ 6850.385841][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6850.385841][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6850.385841][   T73]      netlink_rcv_skb+0x130/0x360
[ 6850.385841][   T73]      netlink_unicast+0x449/0x710
[ 6850.385841][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6850.385841][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6850.385841][   T73]      ___sys_sendmsg+0xee/0x170
[ 6850.385841][   T73]      __sys_sendmsg+0xcd/0x170
[ 6850.385841][   T73]      do_syscall_64+0xc6/0x1e0
[ 6850.385841][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6850.385841][   T73] 
[ 6850.387424][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6850.387424][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6850.387424][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6850.387424][   T73]      ipv6_find_idev+0x102/0x170
[ 6850.387424][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6850.387424][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6850.387424][   T73]      netlink_rcv_skb+0x130/0x360
[ 6850.387424][   T73]      netlink_unicast+0x449/0x710
[ 6850.387424][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6850.387424][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6850.387424][   T73]      ___sys_sendmsg+0xee/0x170
[ 6850.387424][   T73]      __sys_sendmsg+0xcd/0x170
[ 6850.387424][   T73]      do_syscall_64+0xc6/0x1e0
[ 6850.387424][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6850.387424][   T73] 
[ 6850.389140][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6850.389424][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6850.389424][   T73]      netdev_get_by_index+0x5e/0x80
[ 6850.389424][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6850.389424][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6850.389424][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6850.389424][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6850.389424][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6850.389424][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6850.389424][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6850.389424][   T73]      addrconf_dad_begin+0x310/0x670
[ 6850.389424][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6850.389424][   T73]      process_one_work+0x84d/0x18a0
[ 6850.389424][   T73]      worker_thread+0x587/0xd30
[ 6850.389424][   T73]      kthread+0x28a/0x350
[ 6850.389424][   T73]      ret_from_fork+0x31/0x70
[ 6850.389424][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6850.389424][   T73] 
[ 6850.391350][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6850.391350][   T73]      netdev_get_by_index+0x5e/0x80
[ 6850.391350][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6850.391350][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6850.391350][   T73]      ip6_route_add+0x1c/0x140
[ 6850.391350][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6850.391350][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6850.391350][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6850.391350][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6850.391350][   T73]      netlink_rcv_skb+0x130/0x360
[ 6850.391350][   T73]      netlink_unicast+0x449/0x710
[ 6850.391350][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6850.391350][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6850.391350][   T73]      ___sys_sendmsg+0xee/0x170
[ 6850.391350][   T73]      __sys_sendmsg+0xcd/0x170
[ 6850.391350][   T73]      do_syscall_64+0xc6/0x1e0
[ 6850.391350][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6850.391350][   T73] 
[ 6850.393380][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6850.393380][   T73]      netdev_get_by_index+0x5e/0x80
[ 6850.393380][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6850.393380][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6850.393380][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6850.393380][   T73]      ipv6_add_addr+0x411/0x2000
[ 6850.393380][   T73]      inet6_addr_add+0x30e/0xa40
[ 6850.393380][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6850.393380][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6850.393380][   T73]      netlink_rcv_skb+0x130/0x360
[ 6850.393380][   T73]      netlink_unicast+0x449/0x710
[ 6850.393380][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6850.393380][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6850.393380][   T73]      ___sys_sendmsg+0xee/0x170
[ 6850.393380][   T73]      __sys_sendmsg+0xcd/0x170
[ 6850.393380][   T73]      do_syscall_64+0xc6/0x1e0
[ 6850.393380][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6850.393380][   T73] 
[ 6850.395392][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6850.395392][   T73]      netdev_get_by_index+0x5e/0x80
[ 6850.395392][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6850.395392][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6850.395392][   T73]      ip6_route_add+0x1c/0x140
[ 6850.395392][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6850.395392][   T73]      addrconf_add_dev+0xe2/0x170
[ 6850.395392][   T73]      inet6_addr_add+0x12f/0xa40
[ 6850.395392][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6850.395392][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6850.395392][   T73]      netlink_rcv_skb+0x130/0x360
[ 6850.395392][   T73]      netlink_unicast+0x449/0x710
[ 6850.395392][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6850.395392][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6850.395392][   T73]      ___sys_sendmsg+0xee/0x170
[ 6850.395392][   T73]      __sys_sendmsg+0xcd/0x170
[ 6850.395392][   T73]      do_syscall_64+0xc6/0x1e0
[ 6850.395392][   T73] 
[ 6850.397371][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6850.397371][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6850.397371][   T73]      ipv6_find_idev+0x102/0x170
[ 6850.397371][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6850.397371][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6850.397371][   T73]      netlink_rcv_skb+0x130/0x360
[ 6850.397371][   T73]      netlink_unicast+0x449/0x710
[ 6850.397371][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6850.397371][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6850.397371][   T73]      ___sys_sendmsg+0xee/0x170
[ 6850.397371][   T73]      __sys_sendmsg+0xcd/0x170
[ 6850.397371][   T73]      do_syscall_64+0xc6/0x1e0
[ 6850.397371][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6850.397371][   T73] 
[ 6850.398922][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6850.398922][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6850.398922][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6850.398922][   T73]      ipv6_find_idev+0x102/0x170
[ 6850.398922][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6850.398922][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6850.398922][   T73]      netlink_rcv_skb+0x130/0x360
[ 6850.398922][   T73]      netlink_unicast+0x449/0x710
[ 6850.398922][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6850.398922][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6850.398922][   T73]      ___sys_sendmsg+0xee/0x170
[ 6850.398922][   T73]      __sys_sendmsg+0xcd/0x170
[ 6850.398922][   T73]      do_syscall_64+0xc6/0x1e0
[ 6850.398922][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6850.398922][   T73] 
[ 6850.400625][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6850.400914][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6850.400914][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6850.400914][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6850.400914][   T73]      fib6_nh_init+0xa22/0x1580
[ 6850.400914][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6850.400914][   T73]      ip6_route_add+0x1c/0x140
[ 6850.400914][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6850.400914][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6850.400914][   T73]      netlink_rcv_skb+0x130/0x360
[ 6850.400914][   T73]      netlink_unicast+0x449/0x710
[ 6850.400914][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6850.400914][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6850.400914][   T73]      ___sys_sendmsg+0xee/0x170
[ 6850.400914][   T73]      __sys_sendmsg+0xcd/0x170
[ 6850.400914][   T73]      do_syscall_64+0xc6/0x1e0
[ 6850.400914][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6850.400914][   T73] 
[ 6850.403005][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6850.403005][   T73]      dst_init+0x84/0x4a0
[ 6850.403005][   T73]      dst_alloc+0x97/0x150
[ 6850.403005][   T73]      ip6_dst_alloc+0x23/0x90
[ 6850.403005][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6850.403005][   T73]      ip6_pol_route+0x56f/0x840
[ 6850.403005][   T73]      fib6_rule_lookup+0x456/0x630
[ 6850.403005][   T73]      ip6_route_input+0x59c/0xa50
[ 6850.403005][   T73]      ipv6_rcv+0x397/0x810
[ 6850.403005][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6850.403005][   T73]      process_backlog+0x101/0x620
[ 6850.403005][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6850.403005][   T73]      net_rx_action+0x495/0xbe0
[ 6850.403005][   T73]      __do_softirq+0x1b5/0x7f6
[ 6850.403005][   T73] 
[ 6850.404896][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6850.404896][   T73]      netdev_get_by_index+0x5e/0x80
[ 6850.404896][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6850.404896][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6850.404896][   T73]      ip6_route_add+0x1c/0x140
[ 6850.404896][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6850.404896][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6850.404896][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6850.404896][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6850.404896][   T73]      netlink_rcv_skb+0x130/0x360
[ 6850.404896][   T73]      netlink_unicast+0x449/0x710
[ 6850.404896][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6850.404896][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6850.404896][   T73]      ___sys_sendmsg+0xee/0x170
[ 6850.404896][   T73]      __sys_sendmsg+0xcd/0x170
[ 6850.404896][   T73]      do_syscall_64+0xc6/0x1e0
[ 6850.404896][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6850.404896][   T73] 
[ 6850.407155][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6850.407155][   T73]      netdev_get_by_index+0x5e/0x80
[ 6850.407155][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6850.407155][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6850.407155][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6850.407155][   T73]      ipv6_add_addr+0x411/0x2000
[ 6850.407155][   T73]      inet6_addr_add+0x30e/0xa40
[ 6850.407155][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6850.407155][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6850.407155][   T73]      netlink_rcv_skb+0x130/0x360
[ 6850.407155][   T73]      netlink_unicast+0x449/0x710
[ 6850.407155][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6850.407155][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6850.407155][   T73]      ___sys_sendmsg+0xee/0x170
[ 6850.407155][   T73]      __sys_sendmsg+0xcd/0x170
[ 6850.407155][   T73]      do_syscall_64+0xc6/0x1e0
[ 6850.407155][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6850.407155][   T73] 
[ 6850.409411][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6850.409411][   T73]      netdev_get_by_index+0x5e/0x80
[ 6850.409411][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6850.409411][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6850.409411][   T73]      ip6_route_add+0x1c/0x140
[ 6850.409411][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6850.409411][   T73]      addrconf_add_dev+0xe2/0x170
[ 6850.409411][   T73]      inet6_addr_add+0x12f/0xa40
[ 6850.409411][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6850.409411][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6850.409411][   T73]      netlink_rcv_skb+0x130/0x360
[ 6850.409411][   T73]      netlink_unicast+0x449/0x710
[ 6850.409411][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6850.409411][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6850.409411][   T73]      ___sys_sendmsg+0xee/0x170
[ 6850.409411][   T73]      __sys_sendmsg+0xcd/0x170
[ 6850.409411][   T73]      do_syscall_64+0xc6/0x1e0
[ 6850.409411][   T73] 
[ 6850.411634][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6850.411634][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6850.411634][   T73]      ipv6_find_idev+0x102/0x170
[ 6850.411634][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6850.411634][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6850.411634][   T73]      netlink_rcv_skb+0x130/0x360
[ 6850.411634][   T73]      netlink_unicast+0x449/0x710
[ 6850.411634][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6850.411634][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6850.411634][   T73]      ___sys_sendmsg+0xee/0x170
[ 6850.411634][   T73]      __sys_sendmsg+0xcd/0x170
[ 6850.411634][   T73]      do_syscall_64+0xc6/0x1e0
[ 6850.411634][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6850.411634][   T73] 
[ 6850.413433][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6850.413433][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6850.413433][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6850.413433][   T73]      ipv6_find_idev+0x102/0x170
[ 6850.413433][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6850.413433][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6850.413433][   T73]      netlink_rcv_skb+0x130/0x360
[ 6850.413433][   T73]      netlink_unicast+0x449/0x710
[ 6850.413433][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6850.413433][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6850.413433][   T73]      ___sys_sendmsg+0xee/0x170
[ 6850.413433][   T73]      __sys_sendmsg+0xcd/0x170
[ 6850.413433][   T73]      do_syscall_64+0xc6/0x1e0
[ 6850.413433][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6850.413433][   T73] 
[ 6850.415311][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6850.415585][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6850.415585][   T73]      netdev_get_by_index+0x5e/0x80
[ 6850.415585][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6850.415585][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6850.415585][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6850.415585][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6850.415585][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6850.415585][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6850.415585][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6850.415585][   T73]      addrconf_dad_begin+0x310/0x670
[ 6850.415585][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6850.415585][   T73]      process_one_work+0x84d/0x18a0
[ 6850.415585][   T73]      worker_thread+0x587/0xd30
[ 6850.415585][   T73]      kthread+0x28a/0x350
[ 6850.415585][   T73]      ret_from_fork+0x31/0x70
[ 6850.415585][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6850.415585][   T73] 
[ 6850.417752][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6850.417752][   T73]      netdev_get_by_index+0x5e/0x80
[ 6850.417752][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6850.417752][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6850.417752][   T73]      ip6_route_add+0x1c/0x140
[ 6850.417752][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6850.417752][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6850.417752][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6850.417752][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6850.417752][   T73]      netlink_rcv_skb+0x130/0x360
[ 6850.417752][   T73]      netlink_unicast+0x449/0x710
[ 6850.417752][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6850.417752][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6850.417752][   T73]      ___sys_sendmsg+0xee/0x170
[ 6850.417752][   T73]      __sys_sendmsg+0xcd/0x170
[ 6850.417752][   T73]      do_syscall_64+0xc6/0x1e0
[ 6850.417752][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6850.417752][   T73] 
[ 6850.420003][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6850.420003][   T73]      netdev_get_by_index+0x5e/0x80
[ 6850.420003][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6850.420003][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6850.420003][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6850.420003][   T73]      ipv6_add_addr+0x411/0x2000
[ 6850.420003][   T73]      inet6_addr_add+0x30e/0xa40
[ 6850.420003][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6850.420003][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6850.420003][   T73]      netlink_rcv_skb+0x130/0x360
[ 6850.420003][   T73]      netlink_unicast+0x449/0x710
[ 6850.420003][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6850.420003][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6850.420003][   T73]      ___sys_sendmsg+0xee/0x170
[ 6850.420003][   T73]      __sys_sendmsg+0xcd/0x170
[ 6850.420003][   T73]      do_syscall_64+0xc6/0x1e0
[ 6850.420003][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6850.420003][   T73] 
[ 6850.422314][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6850.422314][   T73]      netdev_get_by_index+0x5e/0x80
[ 6850.422314][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6850.422314][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6850.422314][   T73]      ip6_route_add+0x1c/0x140
[ 6850.422314][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6850.422314][   T73]      addrconf_add_dev+0xe2/0x170
[ 6850.422314][   T73]      inet6_addr_add+0x12f/0xa40
[ 6850.422314][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6850.422314][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6850.422314][   T73]      netlink_rcv_skb+0x130/0x360
[ 6850.422314][   T73]      netlink_unicast+0x449/0x710
[ 6850.422314][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6850.422314][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6850.422314][   T73]      ___sys_sendmsg+0xee/0x170
[ 6850.422314][   T73]      __sys_sendmsg+0xcd/0x170
[ 6850.422314][   T73]      do_syscall_64+0xc6/0x1e0
[ 6850.422314][   T73] 
[ 6850.424476][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6850.424476][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6850.424476][   T73]      ipv6_find_idev+0x102/0x170
[ 6850.424476][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6850.424476][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6850.424476][   T73]      netlink_rcv_skb+0x130/0x360
[ 6850.424476][   T73]      netlink_unicast+0x449/0x710
[ 6850.424476][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6850.424476][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6850.424476][   T73]      ___sys_sendmsg+0xee/0x170
[ 6850.424476][   T73]      __sys_sendmsg+0xcd/0x170
[ 6850.424476][   T73]      do_syscall_64+0xc6/0x1e0
[ 6850.424476][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6850.424476][   T73] 
[ 6850.426209][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6850.426209][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6850.426209][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6850.426209][   T73]      ipv6_find_idev+0x102/0x170
[ 6850.426209][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6850.426209][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6850.426209][   T73]      netlink_rcv_skb+0x130/0x360
[ 6850.426209][   T73]      netlink_unicast+0x449/0x710
[ 6850.426209][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6850.426209][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6850.426209][   T73]      ___sys_sendmsg+0xee/0x170
[ 6850.426209][   T73]      __sys_sendmsg+0xcd/0x170
[ 6850.426209][   T73]      do_syscall_64+0xc6/0x1e0
[ 6850.426209][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6850.426209][   T73] 
[ 6860.663821][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6860.664289][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6860.664289][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6860.664289][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6860.664289][   T73]      fib6_nh_init+0xa22/0x1580
[ 6860.664289][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6860.664289][   T73]      ip6_route_add+0x1c/0x140
[ 6860.664289][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6860.664289][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6860.664289][   T73]      netlink_rcv_skb+0x130/0x360
[ 6860.664289][   T73]      netlink_unicast+0x449/0x710
[ 6860.664289][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6860.664289][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6860.664289][   T73]      ___sys_sendmsg+0xee/0x170
[ 6860.664289][   T73]      __sys_sendmsg+0xcd/0x170
[ 6860.664289][   T73]      do_syscall_64+0xc6/0x1e0
[ 6860.664289][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6860.664289][   T73] 
[ 6860.666202][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6860.666202][   T73]      dst_init+0x84/0x4a0
[ 6860.666202][   T73]      dst_alloc+0x97/0x150
[ 6860.666202][   T73]      ip6_dst_alloc+0x23/0x90
[ 6860.666202][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6860.666202][   T73]      ip6_pol_route+0x56f/0x840
[ 6860.666202][   T73]      fib6_rule_lookup+0x456/0x630
[ 6860.666202][   T73]      ip6_route_input+0x59c/0xa50
[ 6860.666202][   T73]      ipv6_rcv+0x397/0x810
[ 6860.666202][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6860.666202][   T73]      process_backlog+0x101/0x620
[ 6860.666202][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6860.666202][   T73]      net_rx_action+0x495/0xbe0
[ 6860.666202][   T73]      __do_softirq+0x1b5/0x7f6
[ 6860.666202][   T73] 
[ 6860.667866][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6860.667866][   T73]      netdev_get_by_index+0x5e/0x80
[ 6860.667866][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6860.667866][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6860.667866][   T73]      ip6_route_add+0x1c/0x140
[ 6860.667866][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6860.667866][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6860.667866][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6860.667866][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6860.667866][   T73]      netlink_rcv_skb+0x130/0x360
[ 6860.667866][   T73]      netlink_unicast+0x449/0x710
[ 6860.667866][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6860.667866][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6860.667866][   T73]      ___sys_sendmsg+0xee/0x170
[ 6860.667866][   T73]      __sys_sendmsg+0xcd/0x170
[ 6860.667866][   T73]      do_syscall_64+0xc6/0x1e0
[ 6860.667866][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6860.667866][   T73] 
[ 6860.669887][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6860.669887][   T73]      netdev_get_by_index+0x5e/0x80
[ 6860.669887][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6860.669887][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6860.669887][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6860.669887][   T73]      ipv6_add_addr+0x411/0x2000
[ 6860.669887][   T73]      inet6_addr_add+0x30e/0xa40
[ 6860.669887][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6860.669887][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6860.669887][   T73]      netlink_rcv_skb+0x130/0x360
[ 6860.669887][   T73]      netlink_unicast+0x449/0x710
[ 6860.669887][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6860.669887][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6860.669887][   T73]      ___sys_sendmsg+0xee/0x170
[ 6860.669887][   T73]      __sys_sendmsg+0xcd/0x170
[ 6860.669887][   T73]      do_syscall_64+0xc6/0x1e0
[ 6860.669887][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6860.669887][   T73] 
[ 6860.671905][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6860.671905][   T73]      netdev_get_by_index+0x5e/0x80
[ 6860.671905][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6860.671905][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6860.671905][   T73]      ip6_route_add+0x1c/0x140
[ 6860.671905][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6860.671905][   T73]      addrconf_add_dev+0xe2/0x170
[ 6860.671905][   T73]      inet6_addr_add+0x12f/0xa40
[ 6860.671905][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6860.671905][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6860.671905][   T73]      netlink_rcv_skb+0x130/0x360
[ 6860.671905][   T73]      netlink_unicast+0x449/0x710
[ 6860.671905][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6860.671905][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6860.671905][   T73]      ___sys_sendmsg+0xee/0x170
[ 6860.671905][   T73]      __sys_sendmsg+0xcd/0x170
[ 6860.671905][   T73]      do_syscall_64+0xc6/0x1e0
[ 6860.671905][   T73] 
[ 6860.673951][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6860.673951][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6860.673951][   T73]      ipv6_find_idev+0x102/0x170
[ 6860.673951][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6860.673951][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6860.673951][   T73]      netlink_rcv_skb+0x130/0x360
[ 6860.673951][   T73]      netlink_unicast+0x449/0x710
[ 6860.673951][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6860.673951][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6860.673951][   T73]      ___sys_sendmsg+0xee/0x170
[ 6860.673951][   T73]      __sys_sendmsg+0xcd/0x170
[ 6860.673951][   T73]      do_syscall_64+0xc6/0x1e0
[ 6860.673951][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6860.673951][   T73] 
[ 6860.675535][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6860.675535][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6860.675535][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6860.675535][   T73]      ipv6_find_idev+0x102/0x170
[ 6860.675535][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6860.675535][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6860.675535][   T73]      netlink_rcv_skb+0x130/0x360
[ 6860.675535][   T73]      netlink_unicast+0x449/0x710
[ 6860.675535][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6860.675535][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6860.675535][   T73]      ___sys_sendmsg+0xee/0x170
[ 6860.675535][   T73]      __sys_sendmsg+0xcd/0x170
[ 6860.675535][   T73]      do_syscall_64+0xc6/0x1e0
[ 6860.675535][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6860.675535][   T73] 
[ 6860.677267][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6860.677567][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6860.677567][   T73]      netdev_get_by_index+0x5e/0x80
[ 6860.677567][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6860.677567][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6860.677567][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6860.677567][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6860.677567][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6860.677567][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6860.677567][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6860.677567][   T73]      addrconf_dad_begin+0x310/0x670
[ 6860.677567][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6860.677567][   T73]      process_one_work+0x84d/0x18a0
[ 6860.677567][   T73]      worker_thread+0x587/0xd30
[ 6860.677567][   T73]      kthread+0x28a/0x350
[ 6860.677567][   T73]      ret_from_fork+0x31/0x70
[ 6860.677567][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6860.677567][   T73] 
[ 6860.679509][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6860.679509][   T73]      netdev_get_by_index+0x5e/0x80
[ 6860.679509][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6860.679509][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6860.679509][   T73]      ip6_route_add+0x1c/0x140
[ 6860.679509][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6860.679509][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6860.679509][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6860.679509][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6860.679509][   T73]      netlink_rcv_skb+0x130/0x360
[ 6860.679509][   T73]      netlink_unicast+0x449/0x710
[ 6860.679509][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6860.679509][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6860.679509][   T73]      ___sys_sendmsg+0xee/0x170
[ 6860.679509][   T73]      __sys_sendmsg+0xcd/0x170
[ 6860.679509][   T73]      do_syscall_64+0xc6/0x1e0
[ 6860.679509][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6860.679509][   T73] 
[ 6860.681548][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6860.681548][   T73]      netdev_get_by_index+0x5e/0x80
[ 6860.681548][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6860.681548][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6860.681548][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6860.681548][   T73]      ipv6_add_addr+0x411/0x2000
[ 6860.681548][   T73]      inet6_addr_add+0x30e/0xa40
[ 6860.681548][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6860.681548][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6860.681548][   T73]      netlink_rcv_skb+0x130/0x360
[ 6860.681548][   T73]      netlink_unicast+0x449/0x710
[ 6860.681548][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6860.681548][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6860.681548][   T73]      ___sys_sendmsg+0xee/0x170
[ 6860.681548][   T73]      __sys_sendmsg+0xcd/0x170
[ 6860.681548][   T73]      do_syscall_64+0xc6/0x1e0
[ 6860.681548][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6860.681548][   T73] 
[ 6860.683591][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6860.683591][   T73]      netdev_get_by_index+0x5e/0x80
[ 6860.683591][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6860.683591][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6860.683591][   T73]      ip6_route_add+0x1c/0x140
[ 6860.683591][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6860.683591][   T73]      addrconf_add_dev+0xe2/0x170
[ 6860.683591][   T73]      inet6_addr_add+0x12f/0xa40
[ 6860.683591][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6860.683591][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6860.683591][   T73]      netlink_rcv_skb+0x130/0x360
[ 6860.683591][   T73]      netlink_unicast+0x449/0x710
[ 6860.683591][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6860.683591][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6860.683591][   T73]      ___sys_sendmsg+0xee/0x170
[ 6860.683591][   T73]      __sys_sendmsg+0xcd/0x170
[ 6860.683591][   T73]      do_syscall_64+0xc6/0x1e0
[ 6860.683591][   T73] 
[ 6860.685581][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6860.685581][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6860.685581][   T73]      ipv6_find_idev+0x102/0x170
[ 6860.685581][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6860.685581][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6860.685581][   T73]      netlink_rcv_skb+0x130/0x360
[ 6860.685581][   T73]      netlink_unicast+0x449/0x710
[ 6860.685581][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6860.685581][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6860.685581][   T73]      ___sys_sendmsg+0xee/0x170
[ 6860.685581][   T73]      __sys_sendmsg+0xcd/0x170
[ 6860.685581][   T73]      do_syscall_64+0xc6/0x1e0
[ 6860.685581][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6860.685581][   T73] 
[ 6860.687140][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6860.687140][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6860.687140][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6860.687140][   T73]      ipv6_find_idev+0x102/0x170
[ 6860.687140][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6860.687140][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6860.687140][   T73]      netlink_rcv_skb+0x130/0x360
[ 6860.687140][   T73]      netlink_unicast+0x449/0x710
[ 6860.687140][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6860.687140][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6860.687140][   T73]      ___sys_sendmsg+0xee/0x170
[ 6860.687140][   T73]      __sys_sendmsg+0xcd/0x170
[ 6860.687140][   T73]      do_syscall_64+0xc6/0x1e0
[ 6860.687140][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6860.687140][   T73] 
[ 6860.688867][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6860.689146][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6860.689146][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6860.689146][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6860.689146][   T73]      fib6_nh_init+0xa22/0x1580
[ 6860.689146][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6860.689146][   T73]      ip6_route_add+0x1c/0x140
[ 6860.689146][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6860.689146][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6860.689146][   T73]      netlink_rcv_skb+0x130/0x360
[ 6860.689146][   T73]      netlink_unicast+0x449/0x710
[ 6860.689146][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6860.689146][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6860.689146][   T73]      ___sys_sendmsg+0xee/0x170
[ 6860.689146][   T73]      __sys_sendmsg+0xcd/0x170
[ 6860.689146][   T73]      do_syscall_64+0xc6/0x1e0
[ 6860.689146][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6860.689146][   T73] 
[ 6860.691236][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6860.691236][   T73]      dst_init+0x84/0x4a0
[ 6860.691236][   T73]      dst_alloc+0x97/0x150
[ 6860.691236][   T73]      ip6_dst_alloc+0x23/0x90
[ 6860.691236][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6860.691236][   T73]      ip6_pol_route+0x56f/0x840
[ 6860.691236][   T73]      fib6_rule_lookup+0x456/0x630
[ 6860.691236][   T73]      ip6_route_input+0x59c/0xa50
[ 6860.691236][   T73]      ipv6_rcv+0x397/0x810
[ 6860.691236][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6860.691236][   T73]      process_backlog+0x101/0x620
[ 6860.691236][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6860.691236][   T73]      net_rx_action+0x495/0xbe0
[ 6860.691236][   T73]      __do_softirq+0x1b5/0x7f6
[ 6860.691236][   T73] 
[ 6860.693149][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6860.693149][   T73]      netdev_get_by_index+0x5e/0x80
[ 6860.693149][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6860.693149][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6860.693149][   T73]      ip6_route_add+0x1c/0x140
[ 6860.693149][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6860.693149][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6860.693149][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6860.693149][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6860.693149][   T73]      netlink_rcv_skb+0x130/0x360
[ 6860.693149][   T73]      netlink_unicast+0x449/0x710
[ 6860.693149][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6860.693149][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6860.693149][   T73]      ___sys_sendmsg+0xee/0x170
[ 6860.693149][   T73]      __sys_sendmsg+0xcd/0x170
[ 6860.693149][   T73]      do_syscall_64+0xc6/0x1e0
[ 6860.693149][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6860.693149][   T73] 
[ 6860.695429][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6860.695429][   T73]      netdev_get_by_index+0x5e/0x80
[ 6860.695429][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6860.695429][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6860.695429][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6860.695429][   T73]      ipv6_add_addr+0x411/0x2000
[ 6860.695429][   T73]      inet6_addr_add+0x30e/0xa40
[ 6860.695429][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6860.695429][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6860.695429][   T73]      netlink_rcv_skb+0x130/0x360
[ 6860.695429][   T73]      netlink_unicast+0x449/0x710
[ 6860.695429][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6860.695429][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6860.695429][   T73]      ___sys_sendmsg+0xee/0x170
[ 6860.695429][   T73]      __sys_sendmsg+0xcd/0x170
[ 6860.695429][   T73]      do_syscall_64+0xc6/0x1e0
[ 6860.695429][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6860.695429][   T73] 
[ 6860.697698][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6860.697698][   T73]      netdev_get_by_index+0x5e/0x80
[ 6860.697698][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6860.697698][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6860.697698][   T73]      ip6_route_add+0x1c/0x140
[ 6860.697698][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6860.697698][   T73]      addrconf_add_dev+0xe2/0x170
[ 6860.697698][   T73]      inet6_addr_add+0x12f/0xa40
[ 6860.697698][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6860.697698][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6860.697698][   T73]      netlink_rcv_skb+0x130/0x360
[ 6860.697698][   T73]      netlink_unicast+0x449/0x710
[ 6860.697698][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6860.697698][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6860.697698][   T73]      ___sys_sendmsg+0xee/0x170
[ 6860.697698][   T73]      __sys_sendmsg+0xcd/0x170
[ 6860.697698][   T73]      do_syscall_64+0xc6/0x1e0
[ 6860.697698][   T73] 
[ 6860.699939][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6860.699939][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6860.699939][   T73]      ipv6_find_idev+0x102/0x170
[ 6860.699939][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6860.699939][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6860.699939][   T73]      netlink_rcv_skb+0x130/0x360
[ 6860.699939][   T73]      netlink_unicast+0x449/0x710
[ 6860.699939][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6860.699939][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6860.699939][   T73]      ___sys_sendmsg+0xee/0x170
[ 6860.699939][   T73]      __sys_sendmsg+0xcd/0x170
[ 6860.699939][   T73]      do_syscall_64+0xc6/0x1e0
[ 6860.699939][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6860.699939][   T73] 
[ 6860.701747][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6860.701747][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6860.701747][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6860.701747][   T73]      ipv6_find_idev+0x102/0x170
[ 6860.701747][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6860.701747][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6860.701747][   T73]      netlink_rcv_skb+0x130/0x360
[ 6860.701747][   T73]      netlink_unicast+0x449/0x710
[ 6860.701747][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6860.701747][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6860.701747][   T73]      ___sys_sendmsg+0xee/0x170
[ 6860.701747][   T73]      __sys_sendmsg+0xcd/0x170
[ 6860.701747][   T73]      do_syscall_64+0xc6/0x1e0
[ 6860.701747][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6860.701747][   T73] 
[ 6860.703666][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6860.703942][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6860.703942][   T73]      netdev_get_by_index+0x5e/0x80
[ 6860.703942][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6860.703942][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6860.703942][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6860.703942][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6860.703942][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6860.703942][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6860.703942][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6860.703942][   T73]      addrconf_dad_begin+0x310/0x670
[ 6860.703942][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6860.703942][   T73]      process_one_work+0x84d/0x18a0
[ 6860.703942][   T73]      worker_thread+0x587/0xd30
[ 6860.703942][   T73]      kthread+0x28a/0x350
[ 6860.703942][   T73]      ret_from_fork+0x31/0x70
[ 6860.703942][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6860.703942][   T73] 
[ 6860.706149][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6860.706149][   T73]      netdev_get_by_index+0x5e/0x80
[ 6860.706149][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6860.706149][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6860.706149][   T73]      ip6_route_add+0x1c/0x140
[ 6860.706149][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6860.706149][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6860.706149][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6860.706149][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6860.706149][   T73]      netlink_rcv_skb+0x130/0x360
[ 6860.706149][   T73]      netlink_unicast+0x449/0x710
[ 6860.706149][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6860.706149][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6860.706149][   T73]      ___sys_sendmsg+0xee/0x170
[ 6860.706149][   T73]      __sys_sendmsg+0xcd/0x170
[ 6860.706149][   T73]      do_syscall_64+0xc6/0x1e0
[ 6860.706149][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6860.706149][   T73] 
[ 6860.708440][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6860.708440][   T73]      netdev_get_by_index+0x5e/0x80
[ 6860.708440][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6860.708440][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6860.708440][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6860.708440][   T73]      ipv6_add_addr+0x411/0x2000
[ 6860.708440][   T73]      inet6_addr_add+0x30e/0xa40
[ 6860.708440][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6860.708440][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6860.708440][   T73]      netlink_rcv_skb+0x130/0x360
[ 6860.708440][   T73]      netlink_unicast+0x449/0x710
[ 6860.708440][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6860.708440][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6860.708440][   T73]      ___sys_sendmsg+0xee/0x170
[ 6860.708440][   T73]      __sys_sendmsg+0xcd/0x170
[ 6860.708440][   T73]      do_syscall_64+0xc6/0x1e0
[ 6860.708440][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6860.708440][   T73] 
[ 6860.710779][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6860.710779][   T73]      netdev_get_by_index+0x5e/0x80
[ 6860.710779][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6860.710779][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6860.710779][   T73]      ip6_route_add+0x1c/0x140
[ 6860.710779][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6860.710779][   T73]      addrconf_add_dev+0xe2/0x170
[ 6860.710779][   T73]      inet6_addr_add+0x12f/0xa40
[ 6860.710779][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6860.710779][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6860.710779][   T73]      netlink_rcv_skb+0x130/0x360
[ 6860.710779][   T73]      netlink_unicast+0x449/0x710
[ 6860.710779][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6860.710779][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6860.710779][   T73]      ___sys_sendmsg+0xee/0x170
[ 6860.710779][   T73]      __sys_sendmsg+0xcd/0x170
[ 6860.710779][   T73]      do_syscall_64+0xc6/0x1e0
[ 6860.710779][   T73] 
[ 6860.712967][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6860.712967][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6860.712967][   T73]      ipv6_find_idev+0x102/0x170
[ 6860.712967][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6860.712967][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6860.712967][   T73]      netlink_rcv_skb+0x130/0x360
[ 6860.712967][   T73]      netlink_unicast+0x449/0x710
[ 6860.712967][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6860.712967][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6860.712967][   T73]      ___sys_sendmsg+0xee/0x170
[ 6860.712967][   T73]      __sys_sendmsg+0xcd/0x170
[ 6860.712967][   T73]      do_syscall_64+0xc6/0x1e0
[ 6860.712967][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6860.712967][   T73] 
[ 6860.714715][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6860.714715][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6860.714715][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6860.714715][   T73]      ipv6_find_idev+0x102/0x170
[ 6860.714715][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6860.714715][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6860.714715][   T73]      netlink_rcv_skb+0x130/0x360
[ 6860.714715][   T73]      netlink_unicast+0x449/0x710
[ 6860.714715][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6860.714715][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6860.714715][   T73]      ___sys_sendmsg+0xee/0x170
[ 6860.714715][   T73]      __sys_sendmsg+0xcd/0x170
[ 6860.714715][   T73]      do_syscall_64+0xc6/0x1e0
[ 6860.714715][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6860.714715][   T73] 
[ 6870.919758][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6870.920165][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6870.920165][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6870.920165][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6870.920165][   T73]      fib6_nh_init+0xa22/0x1580
[ 6870.920165][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6870.920165][   T73]      ip6_route_add+0x1c/0x140
[ 6870.920165][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6870.920165][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6870.920165][   T73]      netlink_rcv_skb+0x130/0x360
[ 6870.920165][   T73]      netlink_unicast+0x449/0x710
[ 6870.920165][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6870.920165][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6870.920165][   T73]      ___sys_sendmsg+0xee/0x170
[ 6870.920165][   T73]      __sys_sendmsg+0xcd/0x170
[ 6870.920165][   T73]      do_syscall_64+0xc6/0x1e0
[ 6870.920165][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6870.920165][   T73] 
[ 6870.922117][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6870.922117][   T73]      dst_init+0x84/0x4a0
[ 6870.922117][   T73]      dst_alloc+0x97/0x150
[ 6870.922117][   T73]      ip6_dst_alloc+0x23/0x90
[ 6870.922117][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6870.922117][   T73]      ip6_pol_route+0x56f/0x840
[ 6870.922117][   T73]      fib6_rule_lookup+0x456/0x630
[ 6870.922117][   T73]      ip6_route_input+0x59c/0xa50
[ 6870.922117][   T73]      ipv6_rcv+0x397/0x810
[ 6870.922117][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6870.922117][   T73]      process_backlog+0x101/0x620
[ 6870.922117][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6870.922117][   T73]      net_rx_action+0x495/0xbe0
[ 6870.922117][   T73]      __do_softirq+0x1b5/0x7f6
[ 6870.922117][   T73] 
[ 6870.923786][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6870.923786][   T73]      netdev_get_by_index+0x5e/0x80
[ 6870.923786][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6870.923786][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6870.923786][   T73]      ip6_route_add+0x1c/0x140
[ 6870.923786][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6870.923786][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6870.923786][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6870.923786][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6870.923786][   T73]      netlink_rcv_skb+0x130/0x360
[ 6870.923786][   T73]      netlink_unicast+0x449/0x710
[ 6870.923786][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6870.923786][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6870.923786][   T73]      ___sys_sendmsg+0xee/0x170
[ 6870.923786][   T73]      __sys_sendmsg+0xcd/0x170
[ 6870.923786][   T73]      do_syscall_64+0xc6/0x1e0
[ 6870.923786][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6870.923786][   T73] 
[ 6870.925814][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6870.925814][   T73]      netdev_get_by_index+0x5e/0x80
[ 6870.925814][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6870.925814][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6870.925814][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6870.925814][   T73]      ipv6_add_addr+0x411/0x2000
[ 6870.925814][   T73]      inet6_addr_add+0x30e/0xa40
[ 6870.925814][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6870.925814][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6870.925814][   T73]      netlink_rcv_skb+0x130/0x360
[ 6870.925814][   T73]      netlink_unicast+0x449/0x710
[ 6870.925814][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6870.925814][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6870.925814][   T73]      ___sys_sendmsg+0xee/0x170
[ 6870.925814][   T73]      __sys_sendmsg+0xcd/0x170
[ 6870.925814][   T73]      do_syscall_64+0xc6/0x1e0
[ 6870.925814][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6870.925814][   T73] 
[ 6870.927856][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6870.927856][   T73]      netdev_get_by_index+0x5e/0x80
[ 6870.927856][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6870.927856][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6870.927856][   T73]      ip6_route_add+0x1c/0x140
[ 6870.927856][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6870.927856][   T73]      addrconf_add_dev+0xe2/0x170
[ 6870.927856][   T73]      inet6_addr_add+0x12f/0xa40
[ 6870.927856][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6870.927856][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6870.927856][   T73]      netlink_rcv_skb+0x130/0x360
[ 6870.927856][   T73]      netlink_unicast+0x449/0x710
[ 6870.927856][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6870.927856][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6870.927856][   T73]      ___sys_sendmsg+0xee/0x170
[ 6870.927856][   T73]      __sys_sendmsg+0xcd/0x170
[ 6870.927856][   T73]      do_syscall_64+0xc6/0x1e0
[ 6870.927856][   T73] 
[ 6870.929855][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6870.929855][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6870.929855][   T73]      ipv6_find_idev+0x102/0x170
[ 6870.929855][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6870.929855][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6870.929855][   T73]      netlink_rcv_skb+0x130/0x360
[ 6870.929855][   T73]      netlink_unicast+0x449/0x710
[ 6870.929855][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6870.929855][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6870.929855][   T73]      ___sys_sendmsg+0xee/0x170
[ 6870.929855][   T73]      __sys_sendmsg+0xcd/0x170
[ 6870.929855][   T73]      do_syscall_64+0xc6/0x1e0
[ 6870.929855][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6870.929855][   T73] 
[ 6870.931417][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6870.931417][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6870.931417][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6870.931417][   T73]      ipv6_find_idev+0x102/0x170
[ 6870.931417][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6870.931417][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6870.931417][   T73]      netlink_rcv_skb+0x130/0x360
[ 6870.931417][   T73]      netlink_unicast+0x449/0x710
[ 6870.931417][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6870.931417][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6870.931417][   T73]      ___sys_sendmsg+0xee/0x170
[ 6870.931417][   T73]      __sys_sendmsg+0xcd/0x170
[ 6870.931417][   T73]      do_syscall_64+0xc6/0x1e0
[ 6870.931417][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6870.931417][   T73] 
[ 6870.933171][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6870.933452][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6870.933452][   T73]      netdev_get_by_index+0x5e/0x80
[ 6870.933452][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6870.933452][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6870.933452][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6870.933452][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6870.933452][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6870.933452][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6870.933452][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6870.933452][   T73]      addrconf_dad_begin+0x310/0x670
[ 6870.933452][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6870.933452][   T73]      process_one_work+0x84d/0x18a0
[ 6870.933452][   T73]      worker_thread+0x587/0xd30
[ 6870.933452][   T73]      kthread+0x28a/0x350
[ 6870.933452][   T73]      ret_from_fork+0x31/0x70
[ 6870.933452][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6870.933452][   T73] 
[ 6870.935388][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6870.935388][   T73]      netdev_get_by_index+0x5e/0x80
[ 6870.935388][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6870.935388][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6870.935388][   T73]      ip6_route_add+0x1c/0x140
[ 6870.935388][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6870.935388][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6870.935388][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6870.935388][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6870.935388][   T73]      netlink_rcv_skb+0x130/0x360
[ 6870.935388][   T73]      netlink_unicast+0x449/0x710
[ 6870.935388][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6870.935388][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6870.935388][   T73]      ___sys_sendmsg+0xee/0x170
[ 6870.935388][   T73]      __sys_sendmsg+0xcd/0x170
[ 6870.935388][   T73]      do_syscall_64+0xc6/0x1e0
[ 6870.935388][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6870.935388][   T73] 
[ 6870.937409][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6870.937409][   T73]      netdev_get_by_index+0x5e/0x80
[ 6870.937409][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6870.937409][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6870.937409][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6870.937409][   T73]      ipv6_add_addr+0x411/0x2000
[ 6870.937409][   T73]      inet6_addr_add+0x30e/0xa40
[ 6870.937409][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6870.937409][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6870.937409][   T73]      netlink_rcv_skb+0x130/0x360
[ 6870.937409][   T73]      netlink_unicast+0x449/0x710
[ 6870.937409][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6870.937409][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6870.937409][   T73]      ___sys_sendmsg+0xee/0x170
[ 6870.937409][   T73]      __sys_sendmsg+0xcd/0x170
[ 6870.937409][   T73]      do_syscall_64+0xc6/0x1e0
[ 6870.937409][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6870.937409][   T73] 
[ 6870.939423][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6870.939423][   T73]      netdev_get_by_index+0x5e/0x80
[ 6870.939423][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6870.939423][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6870.939423][   T73]      ip6_route_add+0x1c/0x140
[ 6870.939423][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6870.939423][   T73]      addrconf_add_dev+0xe2/0x170
[ 6870.939423][   T73]      inet6_addr_add+0x12f/0xa40
[ 6870.939423][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6870.939423][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6870.939423][   T73]      netlink_rcv_skb+0x130/0x360
[ 6870.939423][   T73]      netlink_unicast+0x449/0x710
[ 6870.939423][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6870.939423][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6870.939423][   T73]      ___sys_sendmsg+0xee/0x170
[ 6870.939423][   T73]      __sys_sendmsg+0xcd/0x170
[ 6870.939423][   T73]      do_syscall_64+0xc6/0x1e0
[ 6870.939423][   T73] 
[ 6870.941400][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6870.941400][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6870.941400][   T73]      ipv6_find_idev+0x102/0x170
[ 6870.941400][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6870.941400][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6870.941400][   T73]      netlink_rcv_skb+0x130/0x360
[ 6870.941400][   T73]      netlink_unicast+0x449/0x710
[ 6870.941400][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6870.941400][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6870.941400][   T73]      ___sys_sendmsg+0xee/0x170
[ 6870.941400][   T73]      __sys_sendmsg+0xcd/0x170
[ 6870.941400][   T73]      do_syscall_64+0xc6/0x1e0
[ 6870.941400][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6870.941400][   T73] 
[ 6870.942961][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6870.942961][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6870.942961][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6870.942961][   T73]      ipv6_find_idev+0x102/0x170
[ 6870.942961][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6870.942961][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6870.942961][   T73]      netlink_rcv_skb+0x130/0x360
[ 6870.942961][   T73]      netlink_unicast+0x449/0x710
[ 6870.942961][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6870.942961][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6870.942961][   T73]      ___sys_sendmsg+0xee/0x170
[ 6870.942961][   T73]      __sys_sendmsg+0xcd/0x170
[ 6870.942961][   T73]      do_syscall_64+0xc6/0x1e0
[ 6870.942961][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6870.942961][   T73] 
[ 6870.944684][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6870.944960][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6870.944960][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6870.944960][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6870.944960][   T73]      fib6_nh_init+0xa22/0x1580
[ 6870.944960][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6870.944960][   T73]      ip6_route_add+0x1c/0x140
[ 6870.944960][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6870.944960][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6870.944960][   T73]      netlink_rcv_skb+0x130/0x360
[ 6870.944960][   T73]      netlink_unicast+0x449/0x710
[ 6870.944960][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6870.944960][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6870.944960][   T73]      ___sys_sendmsg+0xee/0x170
[ 6870.944960][   T73]      __sys_sendmsg+0xcd/0x170
[ 6870.944960][   T73]      do_syscall_64+0xc6/0x1e0
[ 6870.944960][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6870.944960][   T73] 
[ 6870.947034][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6870.947034][   T73]      dst_init+0x84/0x4a0
[ 6870.947034][   T73]      dst_alloc+0x97/0x150
[ 6870.947034][   T73]      ip6_dst_alloc+0x23/0x90
[ 6870.947034][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6870.947034][   T73]      ip6_pol_route+0x56f/0x840
[ 6870.947034][   T73]      fib6_rule_lookup+0x456/0x630
[ 6870.947034][   T73]      ip6_route_input+0x59c/0xa50
[ 6870.947034][   T73]      ipv6_rcv+0x397/0x810
[ 6870.947034][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6870.947034][   T73]      process_backlog+0x101/0x620
[ 6870.947034][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6870.947034][   T73]      net_rx_action+0x495/0xbe0
[ 6870.947034][   T73]      __do_softirq+0x1b5/0x7f6
[ 6870.947034][   T73] 
[ 6870.948927][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6870.948927][   T73]      netdev_get_by_index+0x5e/0x80
[ 6870.948927][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6870.948927][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6870.948927][   T73]      ip6_route_add+0x1c/0x140
[ 6870.948927][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6870.948927][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6870.948927][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6870.948927][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6870.948927][   T73]      netlink_rcv_skb+0x130/0x360
[ 6870.948927][   T73]      netlink_unicast+0x449/0x710
[ 6870.948927][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6870.948927][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6870.948927][   T73]      ___sys_sendmsg+0xee/0x170
[ 6870.948927][   T73]      __sys_sendmsg+0xcd/0x170
[ 6870.948927][   T73]      do_syscall_64+0xc6/0x1e0
[ 6870.948927][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6870.948927][   T73] 
[ 6870.951708][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6870.951708][   T73]      netdev_get_by_index+0x5e/0x80
[ 6870.951708][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6870.951708][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6870.951708][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6870.951708][   T73]      ipv6_add_addr+0x411/0x2000
[ 6870.951708][   T73]      inet6_addr_add+0x30e/0xa40
[ 6870.951708][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6870.951708][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6870.951708][   T73]      netlink_rcv_skb+0x130/0x360
[ 6870.951708][   T73]      netlink_unicast+0x449/0x710
[ 6870.951708][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6870.951708][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6870.951708][   T73]      ___sys_sendmsg+0xee/0x170
[ 6870.951708][   T73]      __sys_sendmsg+0xcd/0x170
[ 6870.951708][   T73]      do_syscall_64+0xc6/0x1e0
[ 6870.951708][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6870.951708][   T73] 
[ 6870.953972][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6870.953972][   T73]      netdev_get_by_index+0x5e/0x80
[ 6870.953972][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6870.953972][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6870.953972][   T73]      ip6_route_add+0x1c/0x140
[ 6870.953972][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6870.953972][   T73]      addrconf_add_dev+0xe2/0x170
[ 6870.953972][   T73]      inet6_addr_add+0x12f/0xa40
[ 6870.953972][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6870.953972][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6870.953972][   T73]      netlink_rcv_skb+0x130/0x360
[ 6870.953972][   T73]      netlink_unicast+0x449/0x710
[ 6870.953972][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6870.953972][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6870.953972][   T73]      ___sys_sendmsg+0xee/0x170
[ 6870.953972][   T73]      __sys_sendmsg+0xcd/0x170
[ 6870.953972][   T73]      do_syscall_64+0xc6/0x1e0
[ 6870.953972][   T73] 
[ 6870.956196][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6870.956196][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6870.956196][   T73]      ipv6_find_idev+0x102/0x170
[ 6870.956196][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6870.956196][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6870.956196][   T73]      netlink_rcv_skb+0x130/0x360
[ 6870.956196][   T73]      netlink_unicast+0x449/0x710
[ 6870.956196][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6870.956196][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6870.956196][   T73]      ___sys_sendmsg+0xee/0x170
[ 6870.956196][   T73]      __sys_sendmsg+0xcd/0x170
[ 6870.956196][   T73]      do_syscall_64+0xc6/0x1e0
[ 6870.956196][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6870.956196][   T73] 
[ 6870.957991][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6870.957991][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6870.957991][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6870.957991][   T73]      ipv6_find_idev+0x102/0x170
[ 6870.957991][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6870.957991][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6870.957991][   T73]      netlink_rcv_skb+0x130/0x360
[ 6870.957991][   T73]      netlink_unicast+0x449/0x710
[ 6870.957991][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6870.957991][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6870.957991][   T73]      ___sys_sendmsg+0xee/0x170
[ 6870.957991][   T73]      __sys_sendmsg+0xcd/0x170
[ 6870.957991][   T73]      do_syscall_64+0xc6/0x1e0
[ 6870.957991][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6870.957991][   T73] 
[ 6870.959870][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6870.960143][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6870.960143][   T73]      netdev_get_by_index+0x5e/0x80
[ 6870.960143][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6870.960143][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6870.960143][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6870.960143][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6870.960143][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6870.960143][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6870.960143][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6870.960143][   T73]      addrconf_dad_begin+0x310/0x670
[ 6870.960143][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6870.960143][   T73]      process_one_work+0x84d/0x18a0
[ 6870.960143][   T73]      worker_thread+0x587/0xd30
[ 6870.960143][   T73]      kthread+0x28a/0x350
[ 6870.960143][   T73]      ret_from_fork+0x31/0x70
[ 6870.960143][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6870.960143][   T73] 
[ 6870.962302][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6870.962302][   T73]      netdev_get_by_index+0x5e/0x80
[ 6870.962302][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6870.962302][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6870.962302][   T73]      ip6_route_add+0x1c/0x140
[ 6870.962302][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6870.962302][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6870.962302][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6870.962302][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6870.962302][   T73]      netlink_rcv_skb+0x130/0x360
[ 6870.962302][   T73]      netlink_unicast+0x449/0x710
[ 6870.962302][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6870.962302][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6870.962302][   T73]      ___sys_sendmsg+0xee/0x170
[ 6870.962302][   T73]      __sys_sendmsg+0xcd/0x170
[ 6870.962302][   T73]      do_syscall_64+0xc6/0x1e0
[ 6870.962302][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6870.962302][   T73] 
[ 6870.964592][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6870.964592][   T73]      netdev_get_by_index+0x5e/0x80
[ 6870.964592][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6870.964592][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6870.964592][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6870.964592][   T73]      ipv6_add_addr+0x411/0x2000
[ 6870.964592][   T73]      inet6_addr_add+0x30e/0xa40
[ 6870.964592][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6870.964592][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6870.964592][   T73]      netlink_rcv_skb+0x130/0x360
[ 6870.964592][   T73]      netlink_unicast+0x449/0x710
[ 6870.964592][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6870.964592][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6870.964592][   T73]      ___sys_sendmsg+0xee/0x170
[ 6870.964592][   T73]      __sys_sendmsg+0xcd/0x170
[ 6870.964592][   T73]      do_syscall_64+0xc6/0x1e0
[ 6870.964592][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6870.964592][   T73] 
[ 6870.966910][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6870.966910][   T73]      netdev_get_by_index+0x5e/0x80
[ 6870.966910][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6870.966910][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6870.966910][   T73]      ip6_route_add+0x1c/0x140
[ 6870.966910][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6870.966910][   T73]      addrconf_add_dev+0xe2/0x170
[ 6870.966910][   T73]      inet6_addr_add+0x12f/0xa40
[ 6870.966910][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6870.966910][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6870.966910][   T73]      netlink_rcv_skb+0x130/0x360
[ 6870.966910][   T73]      netlink_unicast+0x449/0x710
[ 6870.966910][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6870.966910][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6870.966910][   T73]      ___sys_sendmsg+0xee/0x170
[ 6870.966910][   T73]      __sys_sendmsg+0xcd/0x170
[ 6870.966910][   T73]      do_syscall_64+0xc6/0x1e0
[ 6870.966910][   T73] 
[ 6870.969074][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6870.969074][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6870.969074][   T73]      ipv6_find_idev+0x102/0x170
[ 6870.969074][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6870.969074][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6870.969074][   T73]      netlink_rcv_skb+0x130/0x360
[ 6870.969074][   T73]      netlink_unicast+0x449/0x710
[ 6870.969074][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6870.969074][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6870.969074][   T73]      ___sys_sendmsg+0xee/0x170
[ 6870.969074][   T73]      __sys_sendmsg+0xcd/0x170
[ 6870.969074][   T73]      do_syscall_64+0xc6/0x1e0
[ 6870.969074][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6870.969074][   T73] 
[ 6871.067608][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6871.067608][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6871.067608][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6871.067608][   T73]      ipv6_find_idev+0x102/0x170
[ 6871.067608][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6871.067608][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6871.067608][   T73]      netlink_rcv_skb+0x130/0x360
[ 6871.067608][   T73]      netlink_unicast+0x449/0x710
[ 6871.067608][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6871.067608][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6871.067608][   T73]      ___sys_sendmsg+0xee/0x170
[ 6871.067608][   T73]      __sys_sendmsg+0xcd/0x170
[ 6871.067608][   T73]      do_syscall_64+0xc6/0x1e0
[ 6871.067608][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6871.067608][   T73] 
[ 6881.311770][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6881.312214][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6881.312214][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6881.312214][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6881.312214][   T73]      fib6_nh_init+0xa22/0x1580
[ 6881.312214][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6881.312214][   T73]      ip6_route_add+0x1c/0x140
[ 6881.312214][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6881.312214][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6881.312214][   T73]      netlink_rcv_skb+0x130/0x360
[ 6881.312214][   T73]      netlink_unicast+0x449/0x710
[ 6881.312214][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6881.312214][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6881.312214][   T73]      ___sys_sendmsg+0xee/0x170
[ 6881.312214][   T73]      __sys_sendmsg+0xcd/0x170
[ 6881.312214][   T73]      do_syscall_64+0xc6/0x1e0
[ 6881.312214][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6881.312214][   T73] 
[ 6881.314196][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6881.314196][   T73]      dst_init+0x84/0x4a0
[ 6881.314196][   T73]      dst_alloc+0x97/0x150
[ 6881.314196][   T73]      ip6_dst_alloc+0x23/0x90
[ 6881.314196][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6881.314196][   T73]      ip6_pol_route+0x56f/0x840
[ 6881.314196][   T73]      fib6_rule_lookup+0x456/0x630
[ 6881.314196][   T73]      ip6_route_input+0x59c/0xa50
[ 6881.314196][   T73]      ipv6_rcv+0x397/0x810
[ 6881.314196][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6881.314196][   T73]      process_backlog+0x101/0x620
[ 6881.314196][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6881.314196][   T73]      net_rx_action+0x495/0xbe0
[ 6881.314196][   T73]      __do_softirq+0x1b5/0x7f6
[ 6881.314196][   T73] 
[ 6881.315872][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6881.315872][   T73]      netdev_get_by_index+0x5e/0x80
[ 6881.315872][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6881.315872][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6881.315872][   T73]      ip6_route_add+0x1c/0x140
[ 6881.315872][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6881.315872][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6881.315872][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6881.315872][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6881.315872][   T73]      netlink_rcv_skb+0x130/0x360
[ 6881.315872][   T73]      netlink_unicast+0x449/0x710
[ 6881.315872][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6881.315872][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6881.315872][   T73]      ___sys_sendmsg+0xee/0x170
[ 6881.315872][   T73]      __sys_sendmsg+0xcd/0x170
[ 6881.315872][   T73]      do_syscall_64+0xc6/0x1e0
[ 6881.315872][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6881.315872][   T73] 
[ 6881.317917][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6881.317917][   T73]      netdev_get_by_index+0x5e/0x80
[ 6881.317917][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6881.317917][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6881.317917][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6881.317917][   T73]      ipv6_add_addr+0x411/0x2000
[ 6881.317917][   T73]      inet6_addr_add+0x30e/0xa40
[ 6881.317917][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6881.317917][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6881.317917][   T73]      netlink_rcv_skb+0x130/0x360
[ 6881.317917][   T73]      netlink_unicast+0x449/0x710
[ 6881.317917][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6881.317917][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6881.317917][   T73]      ___sys_sendmsg+0xee/0x170
[ 6881.317917][   T73]      __sys_sendmsg+0xcd/0x170
[ 6881.317917][   T73]      do_syscall_64+0xc6/0x1e0
[ 6881.317917][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6881.317917][   T73] 
[ 6881.319946][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6881.319946][   T73]      netdev_get_by_index+0x5e/0x80
[ 6881.319946][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6881.319946][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6881.319946][   T73]      ip6_route_add+0x1c/0x140
[ 6881.319946][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6881.319946][   T73]      addrconf_add_dev+0xe2/0x170
[ 6881.319946][   T73]      inet6_addr_add+0x12f/0xa40
[ 6881.319946][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6881.319946][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6881.319946][   T73]      netlink_rcv_skb+0x130/0x360
[ 6881.319946][   T73]      netlink_unicast+0x449/0x710
[ 6881.319946][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6881.319946][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6881.319946][   T73]      ___sys_sendmsg+0xee/0x170
[ 6881.319946][   T73]      __sys_sendmsg+0xcd/0x170
[ 6881.319946][   T73]      do_syscall_64+0xc6/0x1e0
[ 6881.319946][   T73] 
[ 6881.321952][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6881.321952][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6881.321952][   T73]      ipv6_find_idev+0x102/0x170
[ 6881.321952][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6881.321952][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6881.321952][   T73]      netlink_rcv_skb+0x130/0x360
[ 6881.321952][   T73]      netlink_unicast+0x449/0x710
[ 6881.321952][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6881.321952][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6881.321952][   T73]      ___sys_sendmsg+0xee/0x170
[ 6881.321952][   T73]      __sys_sendmsg+0xcd/0x170
[ 6881.321952][   T73]      do_syscall_64+0xc6/0x1e0
[ 6881.321952][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6881.321952][   T73] 
[ 6881.323538][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6881.323538][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6881.323538][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6881.323538][   T73]      ipv6_find_idev+0x102/0x170
[ 6881.323538][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6881.323538][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6881.323538][   T73]      netlink_rcv_skb+0x130/0x360
[ 6881.323538][   T73]      netlink_unicast+0x449/0x710
[ 6881.323538][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6881.323538][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6881.323538][   T73]      ___sys_sendmsg+0xee/0x170
[ 6881.323538][   T73]      __sys_sendmsg+0xcd/0x170
[ 6881.323538][   T73]      do_syscall_64+0xc6/0x1e0
[ 6881.323538][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6881.323538][   T73] 
[ 6881.325415][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6881.325712][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6881.325712][   T73]      netdev_get_by_index+0x5e/0x80
[ 6881.325712][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6881.325712][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6881.325712][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6881.325712][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6881.325712][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6881.325712][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6881.325712][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6881.325712][   T73]      addrconf_dad_begin+0x310/0x670
[ 6881.325712][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6881.325712][   T73]      process_one_work+0x84d/0x18a0
[ 6881.325712][   T73]      worker_thread+0x587/0xd30
[ 6881.325712][   T73]      kthread+0x28a/0x350
[ 6881.325712][   T73]      ret_from_fork+0x31/0x70
[ 6881.325712][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6881.325712][   T73] 
[ 6881.327665][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6881.327665][   T73]      netdev_get_by_index+0x5e/0x80
[ 6881.327665][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6881.327665][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6881.327665][   T73]      ip6_route_add+0x1c/0x140
[ 6881.327665][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6881.327665][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6881.327665][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6881.327665][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6881.327665][   T73]      netlink_rcv_skb+0x130/0x360
[ 6881.327665][   T73]      netlink_unicast+0x449/0x710
[ 6881.327665][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6881.327665][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6881.327665][   T73]      ___sys_sendmsg+0xee/0x170
[ 6881.327665][   T73]      __sys_sendmsg+0xcd/0x170
[ 6881.327665][   T73]      do_syscall_64+0xc6/0x1e0
[ 6881.327665][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6881.327665][   T73] 
[ 6881.329716][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6881.329716][   T73]      netdev_get_by_index+0x5e/0x80
[ 6881.329716][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6881.329716][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6881.329716][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6881.329716][   T73]      ipv6_add_addr+0x411/0x2000
[ 6881.329716][   T73]      inet6_addr_add+0x30e/0xa40
[ 6881.329716][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6881.329716][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6881.329716][   T73]      netlink_rcv_skb+0x130/0x360
[ 6881.329716][   T73]      netlink_unicast+0x449/0x710
[ 6881.329716][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6881.329716][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6881.329716][   T73]      ___sys_sendmsg+0xee/0x170
[ 6881.329716][   T73]      __sys_sendmsg+0xcd/0x170
[ 6881.329716][   T73]      do_syscall_64+0xc6/0x1e0
[ 6881.329716][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6881.329716][   T73] 
[ 6881.331767][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6881.331767][   T73]      netdev_get_by_index+0x5e/0x80
[ 6881.331767][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6881.331767][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6881.331767][   T73]      ip6_route_add+0x1c/0x140
[ 6881.331767][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6881.331767][   T73]      addrconf_add_dev+0xe2/0x170
[ 6881.331767][   T73]      inet6_addr_add+0x12f/0xa40
[ 6881.331767][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6881.331767][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6881.331767][   T73]      netlink_rcv_skb+0x130/0x360
[ 6881.331767][   T73]      netlink_unicast+0x449/0x710
[ 6881.331767][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6881.331767][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6881.331767][   T73]      ___sys_sendmsg+0xee/0x170
[ 6881.331767][   T73]      __sys_sendmsg+0xcd/0x170
[ 6881.331767][   T73]      do_syscall_64+0xc6/0x1e0
[ 6881.331767][   T73] 
[ 6881.333766][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6881.333766][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6881.333766][   T73]      ipv6_find_idev+0x102/0x170
[ 6881.333766][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6881.333766][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6881.333766][   T73]      netlink_rcv_skb+0x130/0x360
[ 6881.333766][   T73]      netlink_unicast+0x449/0x710
[ 6881.333766][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6881.333766][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6881.333766][   T73]      ___sys_sendmsg+0xee/0x170
[ 6881.333766][   T73]      __sys_sendmsg+0xcd/0x170
[ 6881.333766][   T73]      do_syscall_64+0xc6/0x1e0
[ 6881.333766][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6881.333766][   T73] 
[ 6881.335348][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6881.335348][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6881.335348][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6881.335348][   T73]      ipv6_find_idev+0x102/0x170
[ 6881.335348][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6881.335348][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6881.335348][   T73]      netlink_rcv_skb+0x130/0x360
[ 6881.335348][   T73]      netlink_unicast+0x449/0x710
[ 6881.335348][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6881.335348][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6881.335348][   T73]      ___sys_sendmsg+0xee/0x170
[ 6881.335348][   T73]      __sys_sendmsg+0xcd/0x170
[ 6881.335348][   T73]      do_syscall_64+0xc6/0x1e0
[ 6881.335348][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6881.335348][   T73] 
[ 6881.337068][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6881.337339][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6881.337339][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6881.337339][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6881.337339][   T73]      fib6_nh_init+0xa22/0x1580
[ 6881.337339][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6881.337339][   T73]      ip6_route_add+0x1c/0x140
[ 6881.337339][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6881.337339][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6881.337339][   T73]      netlink_rcv_skb+0x130/0x360
[ 6881.337339][   T73]      netlink_unicast+0x449/0x710
[ 6881.337339][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6881.337339][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6881.337339][   T73]      ___sys_sendmsg+0xee/0x170
[ 6881.337339][   T73]      __sys_sendmsg+0xcd/0x170
[ 6881.337339][   T73]      do_syscall_64+0xc6/0x1e0
[ 6881.337339][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6881.337339][   T73] 
[ 6881.339436][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6881.339436][   T73]      dst_init+0x84/0x4a0
[ 6881.339436][   T73]      dst_alloc+0x97/0x150
[ 6881.339436][   T73]      ip6_dst_alloc+0x23/0x90
[ 6881.339436][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6881.339436][   T73]      ip6_pol_route+0x56f/0x840
[ 6881.339436][   T73]      fib6_rule_lookup+0x456/0x630
[ 6881.339436][   T73]      ip6_route_input+0x59c/0xa50
[ 6881.339436][   T73]      ipv6_rcv+0x397/0x810
[ 6881.339436][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6881.339436][   T73]      process_backlog+0x101/0x620
[ 6881.339436][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6881.339436][   T73]      net_rx_action+0x495/0xbe0
[ 6881.339436][   T73]      __do_softirq+0x1b5/0x7f6
[ 6881.339436][   T73] 
[ 6881.341345][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6881.341345][   T73]      netdev_get_by_index+0x5e/0x80
[ 6881.341345][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6881.341345][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6881.341345][   T73]      ip6_route_add+0x1c/0x140
[ 6881.341345][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6881.341345][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6881.341345][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6881.341345][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6881.341345][   T73]      netlink_rcv_skb+0x130/0x360
[ 6881.341345][   T73]      netlink_unicast+0x449/0x710
[ 6881.341345][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6881.341345][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6881.341345][   T73]      ___sys_sendmsg+0xee/0x170
[ 6881.341345][   T73]      __sys_sendmsg+0xcd/0x170
[ 6881.341345][   T73]      do_syscall_64+0xc6/0x1e0
[ 6881.341345][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6881.341345][   T73] 
[ 6881.343625][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6881.343625][   T73]      netdev_get_by_index+0x5e/0x80
[ 6881.343625][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6881.343625][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6881.343625][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6881.343625][   T73]      ipv6_add_addr+0x411/0x2000
[ 6881.343625][   T73]      inet6_addr_add+0x30e/0xa40
[ 6881.343625][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6881.343625][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6881.343625][   T73]      netlink_rcv_skb+0x130/0x360
[ 6881.343625][   T73]      netlink_unicast+0x449/0x710
[ 6881.343625][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6881.343625][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6881.343625][   T73]      ___sys_sendmsg+0xee/0x170
[ 6881.343625][   T73]      __sys_sendmsg+0xcd/0x170
[ 6881.343625][   T73]      do_syscall_64+0xc6/0x1e0
[ 6881.343625][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6881.343625][   T73] 
[ 6881.345906][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6881.345906][   T73]      netdev_get_by_index+0x5e/0x80
[ 6881.345906][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6881.345906][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6881.345906][   T73]      ip6_route_add+0x1c/0x140
[ 6881.345906][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6881.345906][   T73]      addrconf_add_dev+0xe2/0x170
[ 6881.345906][   T73]      inet6_addr_add+0x12f/0xa40
[ 6881.345906][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6881.345906][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6881.345906][   T73]      netlink_rcv_skb+0x130/0x360
[ 6881.345906][   T73]      netlink_unicast+0x449/0x710
[ 6881.345906][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6881.345906][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6881.345906][   T73]      ___sys_sendmsg+0xee/0x170
[ 6881.345906][   T73]      __sys_sendmsg+0xcd/0x170
[ 6881.345906][   T73]      do_syscall_64+0xc6/0x1e0
[ 6881.345906][   T73] 
[ 6881.348146][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6881.348146][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6881.348146][   T73]      ipv6_find_idev+0x102/0x170
[ 6881.348146][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6881.348146][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6881.348146][   T73]      netlink_rcv_skb+0x130/0x360
[ 6881.348146][   T73]      netlink_unicast+0x449/0x710
[ 6881.348146][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6881.348146][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6881.348146][   T73]      ___sys_sendmsg+0xee/0x170
[ 6881.348146][   T73]      __sys_sendmsg+0xcd/0x170
[ 6881.348146][   T73]      do_syscall_64+0xc6/0x1e0
[ 6881.348146][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6881.348146][   T73] 
[ 6881.350629][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6881.350629][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6881.350629][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6881.350629][   T73]      ipv6_find_idev+0x102/0x170
[ 6881.350629][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6881.350629][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6881.350629][   T73]      netlink_rcv_skb+0x130/0x360
[ 6881.350629][   T73]      netlink_unicast+0x449/0x710
[ 6881.350629][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6881.350629][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6881.350629][   T73]      ___sys_sendmsg+0xee/0x170
[ 6881.350629][   T73]      __sys_sendmsg+0xcd/0x170
[ 6881.350629][   T73]      do_syscall_64+0xc6/0x1e0
[ 6881.350629][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6881.350629][   T73] 
[ 6881.352927][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6881.353622][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6881.353622][   T73]      netdev_get_by_index+0x5e/0x80
[ 6881.353622][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6881.353622][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6881.353622][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6881.353622][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6881.353622][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6881.353622][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6881.353622][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6881.353622][   T73]      addrconf_dad_begin+0x310/0x670
[ 6881.353622][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6881.353622][   T73]      process_one_work+0x84d/0x18a0
[ 6881.353622][   T73]      worker_thread+0x587/0xd30
[ 6881.353622][   T73]      kthread+0x28a/0x350
[ 6881.353622][   T73]      ret_from_fork+0x31/0x70
[ 6881.353622][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6881.353622][   T73] 
[ 6881.355550][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6881.355550][   T73]      netdev_get_by_index+0x5e/0x80
[ 6881.355550][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6881.355550][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6881.355550][   T73]      ip6_route_add+0x1c/0x140
[ 6881.355550][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6881.355550][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6881.355550][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6881.355550][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6881.355550][   T73]      netlink_rcv_skb+0x130/0x360
[ 6881.355550][   T73]      netlink_unicast+0x449/0x710
[ 6881.355550][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6881.355550][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6881.355550][   T73]      ___sys_sendmsg+0xee/0x170
[ 6881.355550][   T73]      __sys_sendmsg+0xcd/0x170
[ 6881.355550][   T73]      do_syscall_64+0xc6/0x1e0
[ 6881.355550][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6881.355550][   T73] 
[ 6881.357563][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6881.357563][   T73]      netdev_get_by_index+0x5e/0x80
[ 6881.357563][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6881.357563][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6881.357563][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6881.357563][   T73]      ipv6_add_addr+0x411/0x2000
[ 6881.357563][   T73]      inet6_addr_add+0x30e/0xa40
[ 6881.357563][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6881.357563][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6881.357563][   T73]      netlink_rcv_skb+0x130/0x360
[ 6881.357563][   T73]      netlink_unicast+0x449/0x710
[ 6881.357563][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6881.357563][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6881.357563][   T73]      ___sys_sendmsg+0xee/0x170
[ 6881.357563][   T73]      __sys_sendmsg+0xcd/0x170
[ 6881.357563][   T73]      do_syscall_64+0xc6/0x1e0
[ 6881.357563][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6881.357563][   T73] 
[ 6881.359581][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6881.359581][   T73]      netdev_get_by_index+0x5e/0x80
[ 6881.359581][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6881.359581][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6881.359581][   T73]      ip6_route_add+0x1c/0x140
[ 6881.359581][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6881.359581][   T73]      addrconf_add_dev+0xe2/0x170
[ 6881.359581][   T73]      inet6_addr_add+0x12f/0xa40
[ 6881.359581][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6881.359581][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6881.359581][   T73]      netlink_rcv_skb+0x130/0x360
[ 6881.359581][   T73]      netlink_unicast+0x449/0x710
[ 6881.359581][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6881.359581][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6881.359581][   T73]      ___sys_sendmsg+0xee/0x170
[ 6881.359581][   T73]      __sys_sendmsg+0xcd/0x170
[ 6881.359581][   T73]      do_syscall_64+0xc6/0x1e0
[ 6881.359581][   T73] 
[ 6881.361826][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6881.361826][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6881.361826][   T73]      ipv6_find_idev+0x102/0x170
[ 6881.361826][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6881.361826][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6881.361826][   T73]      netlink_rcv_skb+0x130/0x360
[ 6881.361826][   T73]      netlink_unicast+0x449/0x710
[ 6881.361826][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6881.361826][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6881.361826][   T73]      ___sys_sendmsg+0xee/0x170
[ 6881.361826][   T73]      __sys_sendmsg+0xcd/0x170
[ 6881.361826][   T73]      do_syscall_64+0xc6/0x1e0
[ 6881.361826][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6881.361826][   T73] 
[ 6881.363523][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6881.363523][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6881.363523][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6881.363523][   T73]      ipv6_find_idev+0x102/0x170
[ 6881.363523][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6881.363523][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6881.363523][   T73]      netlink_rcv_skb+0x130/0x360
[ 6881.363523][   T73]      netlink_unicast+0x449/0x710
[ 6881.363523][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6881.363523][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6881.363523][   T73]      ___sys_sendmsg+0xee/0x170
[ 6881.363523][   T73]      __sys_sendmsg+0xcd/0x170
[ 6881.363523][   T73]      do_syscall_64+0xc6/0x1e0
[ 6881.363523][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6881.363523][   T73] 
[ 6891.607748][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6891.608150][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6891.608150][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6891.608150][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6891.608150][   T73]      fib6_nh_init+0xa22/0x1580
[ 6891.608150][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6891.608150][   T73]      ip6_route_add+0x1c/0x140
[ 6891.608150][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6891.608150][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6891.608150][   T73]      netlink_rcv_skb+0x130/0x360
[ 6891.608150][   T73]      netlink_unicast+0x449/0x710
[ 6891.608150][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6891.608150][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6891.608150][   T73]      ___sys_sendmsg+0xee/0x170
[ 6891.608150][   T73]      __sys_sendmsg+0xcd/0x170
[ 6891.608150][   T73]      do_syscall_64+0xc6/0x1e0
[ 6891.608150][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6891.608150][   T73] 
[ 6891.610066][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6891.610066][   T73]      dst_init+0x84/0x4a0
[ 6891.610066][   T73]      dst_alloc+0x97/0x150
[ 6891.610066][   T73]      ip6_dst_alloc+0x23/0x90
[ 6891.610066][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6891.610066][   T73]      ip6_pol_route+0x56f/0x840
[ 6891.610066][   T73]      fib6_rule_lookup+0x456/0x630
[ 6891.610066][   T73]      ip6_route_input+0x59c/0xa50
[ 6891.610066][   T73]      ipv6_rcv+0x397/0x810
[ 6891.610066][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6891.610066][   T73]      process_backlog+0x101/0x620
[ 6891.610066][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6891.610066][   T73]      net_rx_action+0x495/0xbe0
[ 6891.610066][   T73]      __do_softirq+0x1b5/0x7f6
[ 6891.610066][   T73] 
[ 6891.611731][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6891.611731][   T73]      netdev_get_by_index+0x5e/0x80
[ 6891.611731][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6891.611731][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6891.611731][   T73]      ip6_route_add+0x1c/0x140
[ 6891.611731][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6891.611731][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6891.611731][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6891.611731][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6891.611731][   T73]      netlink_rcv_skb+0x130/0x360
[ 6891.611731][   T73]      netlink_unicast+0x449/0x710
[ 6891.611731][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6891.611731][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6891.611731][   T73]      ___sys_sendmsg+0xee/0x170
[ 6891.611731][   T73]      __sys_sendmsg+0xcd/0x170
[ 6891.611731][   T73]      do_syscall_64+0xc6/0x1e0
[ 6891.611731][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6891.611731][   T73] 
[ 6891.613762][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6891.613762][   T73]      netdev_get_by_index+0x5e/0x80
[ 6891.613762][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6891.613762][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6891.613762][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6891.613762][   T73]      ipv6_add_addr+0x411/0x2000
[ 6891.613762][   T73]      inet6_addr_add+0x30e/0xa40
[ 6891.613762][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6891.613762][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6891.613762][   T73]      netlink_rcv_skb+0x130/0x360
[ 6891.613762][   T73]      netlink_unicast+0x449/0x710
[ 6891.613762][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6891.613762][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6891.613762][   T73]      ___sys_sendmsg+0xee/0x170
[ 6891.613762][   T73]      __sys_sendmsg+0xcd/0x170
[ 6891.613762][   T73]      do_syscall_64+0xc6/0x1e0
[ 6891.613762][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6891.613762][   T73] 
[ 6891.615779][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6891.615779][   T73]      netdev_get_by_index+0x5e/0x80
[ 6891.615779][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6891.615779][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6891.615779][   T73]      ip6_route_add+0x1c/0x140
[ 6891.615779][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6891.615779][   T73]      addrconf_add_dev+0xe2/0x170
[ 6891.615779][   T73]      inet6_addr_add+0x12f/0xa40
[ 6891.615779][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6891.615779][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6891.615779][   T73]      netlink_rcv_skb+0x130/0x360
[ 6891.615779][   T73]      netlink_unicast+0x449/0x710
[ 6891.615779][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6891.615779][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6891.615779][   T73]      ___sys_sendmsg+0xee/0x170
[ 6891.615779][   T73]      __sys_sendmsg+0xcd/0x170
[ 6891.615779][   T73]      do_syscall_64+0xc6/0x1e0
[ 6891.615779][   T73] 
[ 6891.617775][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6891.617775][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6891.617775][   T73]      ipv6_find_idev+0x102/0x170
[ 6891.617775][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6891.617775][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6891.617775][   T73]      netlink_rcv_skb+0x130/0x360
[ 6891.617775][   T73]      netlink_unicast+0x449/0x710
[ 6891.617775][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6891.617775][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6891.617775][   T73]      ___sys_sendmsg+0xee/0x170
[ 6891.617775][   T73]      __sys_sendmsg+0xcd/0x170
[ 6891.617775][   T73]      do_syscall_64+0xc6/0x1e0
[ 6891.617775][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6891.617775][   T73] 
[ 6891.619330][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6891.619330][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6891.619330][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6891.619330][   T73]      ipv6_find_idev+0x102/0x170
[ 6891.619330][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6891.619330][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6891.619330][   T73]      netlink_rcv_skb+0x130/0x360
[ 6891.619330][   T73]      netlink_unicast+0x449/0x710
[ 6891.619330][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6891.619330][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6891.619330][   T73]      ___sys_sendmsg+0xee/0x170
[ 6891.619330][   T73]      __sys_sendmsg+0xcd/0x170
[ 6891.619330][   T73]      do_syscall_64+0xc6/0x1e0
[ 6891.619330][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6891.619330][   T73] 
[ 6891.621039][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6891.621323][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6891.621323][   T73]      netdev_get_by_index+0x5e/0x80
[ 6891.621323][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6891.621323][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6891.621323][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6891.621323][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6891.621323][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6891.621323][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6891.621323][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6891.621323][   T73]      addrconf_dad_begin+0x310/0x670
[ 6891.621323][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6891.621323][   T73]      process_one_work+0x84d/0x18a0
[ 6891.621323][   T73]      worker_thread+0x587/0xd30
[ 6891.621323][   T73]      kthread+0x28a/0x350
[ 6891.621323][   T73]      ret_from_fork+0x31/0x70
[ 6891.621323][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6891.621323][   T73] 
[ 6891.623263][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6891.623263][   T73]      netdev_get_by_index+0x5e/0x80
[ 6891.623263][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6891.623263][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6891.623263][   T73]      ip6_route_add+0x1c/0x140
[ 6891.623263][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6891.623263][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6891.623263][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6891.623263][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6891.623263][   T73]      netlink_rcv_skb+0x130/0x360
[ 6891.623263][   T73]      netlink_unicast+0x449/0x710
[ 6891.623263][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6891.623263][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6891.623263][   T73]      ___sys_sendmsg+0xee/0x170
[ 6891.623263][   T73]      __sys_sendmsg+0xcd/0x170
[ 6891.623263][   T73]      do_syscall_64+0xc6/0x1e0
[ 6891.623263][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6891.623263][   T73] 
[ 6891.625289][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6891.625289][   T73]      netdev_get_by_index+0x5e/0x80
[ 6891.625289][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6891.625289][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6891.625289][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6891.625289][   T73]      ipv6_add_addr+0x411/0x2000
[ 6891.625289][   T73]      inet6_addr_add+0x30e/0xa40
[ 6891.625289][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6891.625289][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6891.625289][   T73]      netlink_rcv_skb+0x130/0x360
[ 6891.625289][   T73]      netlink_unicast+0x449/0x710
[ 6891.625289][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6891.625289][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6891.625289][   T73]      ___sys_sendmsg+0xee/0x170
[ 6891.625289][   T73]      __sys_sendmsg+0xcd/0x170
[ 6891.625289][   T73]      do_syscall_64+0xc6/0x1e0
[ 6891.625289][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6891.625289][   T73] 
[ 6891.627311][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6891.627311][   T73]      netdev_get_by_index+0x5e/0x80
[ 6891.627311][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6891.627311][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6891.627311][   T73]      ip6_route_add+0x1c/0x140
[ 6891.627311][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6891.627311][   T73]      addrconf_add_dev+0xe2/0x170
[ 6891.627311][   T73]      inet6_addr_add+0x12f/0xa40
[ 6891.627311][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6891.627311][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6891.627311][   T73]      netlink_rcv_skb+0x130/0x360
[ 6891.627311][   T73]      netlink_unicast+0x449/0x710
[ 6891.627311][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6891.627311][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6891.627311][   T73]      ___sys_sendmsg+0xee/0x170
[ 6891.627311][   T73]      __sys_sendmsg+0xcd/0x170
[ 6891.627311][   T73]      do_syscall_64+0xc6/0x1e0
[ 6891.627311][   T73] 
[ 6891.629317][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6891.629317][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6891.629317][   T73]      ipv6_find_idev+0x102/0x170
[ 6891.629317][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6891.629317][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6891.629317][   T73]      netlink_rcv_skb+0x130/0x360
[ 6891.629317][   T73]      netlink_unicast+0x449/0x710
[ 6891.629317][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6891.629317][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6891.629317][   T73]      ___sys_sendmsg+0xee/0x170
[ 6891.629317][   T73]      __sys_sendmsg+0xcd/0x170
[ 6891.629317][   T73]      do_syscall_64+0xc6/0x1e0
[ 6891.629317][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6891.629317][   T73] 
[ 6891.630877][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6891.630877][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6891.630877][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6891.630877][   T73]      ipv6_find_idev+0x102/0x170
[ 6891.630877][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6891.630877][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6891.630877][   T73]      netlink_rcv_skb+0x130/0x360
[ 6891.630877][   T73]      netlink_unicast+0x449/0x710
[ 6891.630877][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6891.630877][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6891.630877][   T73]      ___sys_sendmsg+0xee/0x170
[ 6891.630877][   T73]      __sys_sendmsg+0xcd/0x170
[ 6891.630877][   T73]      do_syscall_64+0xc6/0x1e0
[ 6891.630877][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6891.630877][   T73] 
[ 6891.632596][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6891.632884][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6891.632884][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6891.632884][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6891.632884][   T73]      fib6_nh_init+0xa22/0x1580
[ 6891.632884][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6891.632884][   T73]      ip6_route_add+0x1c/0x140
[ 6891.632884][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6891.632884][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6891.632884][   T73]      netlink_rcv_skb+0x130/0x360
[ 6891.632884][   T73]      netlink_unicast+0x449/0x710
[ 6891.632884][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6891.632884][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6891.632884][   T73]      ___sys_sendmsg+0xee/0x170
[ 6891.632884][   T73]      __sys_sendmsg+0xcd/0x170
[ 6891.632884][   T73]      do_syscall_64+0xc6/0x1e0
[ 6891.632884][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6891.632884][   T73] 
[ 6891.634910][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6891.634910][   T73]      dst_init+0x84/0x4a0
[ 6891.634910][   T73]      dst_alloc+0x97/0x150
[ 6891.634910][   T73]      ip6_dst_alloc+0x23/0x90
[ 6891.634910][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6891.634910][   T73]      ip6_pol_route+0x56f/0x840
[ 6891.634910][   T73]      fib6_rule_lookup+0x456/0x630
[ 6891.634910][   T73]      ip6_route_input+0x59c/0xa50
[ 6891.634910][   T73]      ipv6_rcv+0x397/0x810
[ 6891.634910][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6891.634910][   T73]      process_backlog+0x101/0x620
[ 6891.634910][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6891.634910][   T73]      net_rx_action+0x495/0xbe0
[ 6891.634910][   T73]      __do_softirq+0x1b5/0x7f6
[ 6891.634910][   T73] 
[ 6891.636815][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6891.636815][   T73]      netdev_get_by_index+0x5e/0x80
[ 6891.636815][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6891.636815][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6891.636815][   T73]      ip6_route_add+0x1c/0x140
[ 6891.636815][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6891.636815][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6891.636815][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6891.636815][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6891.636815][   T73]      netlink_rcv_skb+0x130/0x360
[ 6891.636815][   T73]      netlink_unicast+0x449/0x710
[ 6891.636815][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6891.636815][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6891.636815][   T73]      ___sys_sendmsg+0xee/0x170
[ 6891.636815][   T73]      __sys_sendmsg+0xcd/0x170
[ 6891.636815][   T73]      do_syscall_64+0xc6/0x1e0
[ 6891.636815][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6891.636815][   T73] 
[ 6891.639072][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6891.639072][   T73]      netdev_get_by_index+0x5e/0x80
[ 6891.639072][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6891.639072][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6891.639072][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6891.639072][   T73]      ipv6_add_addr+0x411/0x2000
[ 6891.639072][   T73]      inet6_addr_add+0x30e/0xa40
[ 6891.639072][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6891.639072][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6891.639072][   T73]      netlink_rcv_skb+0x130/0x360
[ 6891.639072][   T73]      netlink_unicast+0x449/0x710
[ 6891.639072][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6891.639072][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6891.639072][   T73]      ___sys_sendmsg+0xee/0x170
[ 6891.639072][   T73]      __sys_sendmsg+0xcd/0x170
[ 6891.639072][   T73]      do_syscall_64+0xc6/0x1e0
[ 6891.639072][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6891.639072][   T73] 
[ 6891.641337][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6891.641337][   T73]      netdev_get_by_index+0x5e/0x80
[ 6891.641337][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6891.641337][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6891.641337][   T73]      ip6_route_add+0x1c/0x140
[ 6891.641337][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6891.641337][   T73]      addrconf_add_dev+0xe2/0x170
[ 6891.641337][   T73]      inet6_addr_add+0x12f/0xa40
[ 6891.641337][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6891.641337][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6891.641337][   T73]      netlink_rcv_skb+0x130/0x360
[ 6891.641337][   T73]      netlink_unicast+0x449/0x710
[ 6891.641337][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6891.641337][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6891.641337][   T73]      ___sys_sendmsg+0xee/0x170
[ 6891.641337][   T73]      __sys_sendmsg+0xcd/0x170
[ 6891.641337][   T73]      do_syscall_64+0xc6/0x1e0
[ 6891.641337][   T73] 
[ 6891.643581][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6891.643581][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6891.643581][   T73]      ipv6_find_idev+0x102/0x170
[ 6891.643581][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6891.643581][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6891.643581][   T73]      netlink_rcv_skb+0x130/0x360
[ 6891.643581][   T73]      netlink_unicast+0x449/0x710
[ 6891.643581][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6891.643581][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6891.643581][   T73]      ___sys_sendmsg+0xee/0x170
[ 6891.643581][   T73]      __sys_sendmsg+0xcd/0x170
[ 6891.643581][   T73]      do_syscall_64+0xc6/0x1e0
[ 6891.643581][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6891.643581][   T73] 
[ 6891.645377][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6891.645377][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6891.645377][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6891.645377][   T73]      ipv6_find_idev+0x102/0x170
[ 6891.645377][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6891.645377][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6891.645377][   T73]      netlink_rcv_skb+0x130/0x360
[ 6891.645377][   T73]      netlink_unicast+0x449/0x710
[ 6891.645377][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6891.645377][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6891.645377][   T73]      ___sys_sendmsg+0xee/0x170
[ 6891.645377][   T73]      __sys_sendmsg+0xcd/0x170
[ 6891.645377][   T73]      do_syscall_64+0xc6/0x1e0
[ 6891.645377][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6891.645377][   T73] 
[ 6891.647264][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6891.647536][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6891.647536][   T73]      netdev_get_by_index+0x5e/0x80
[ 6891.647536][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6891.647536][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6891.647536][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6891.647536][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6891.647536][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6891.647536][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6891.647536][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6891.647536][   T73]      addrconf_dad_begin+0x310/0x670
[ 6891.647536][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6891.647536][   T73]      process_one_work+0x84d/0x18a0
[ 6891.647536][   T73]      worker_thread+0x587/0xd30
[ 6891.647536][   T73]      kthread+0x28a/0x350
[ 6891.647536][   T73]      ret_from_fork+0x31/0x70
[ 6891.647536][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6891.647536][   T73] 
[ 6891.649719][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6891.649719][   T73]      netdev_get_by_index+0x5e/0x80
[ 6891.649719][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6891.649719][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6891.649719][   T73]      ip6_route_add+0x1c/0x140
[ 6891.649719][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6891.649719][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6891.649719][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6891.649719][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6891.649719][   T73]      netlink_rcv_skb+0x130/0x360
[ 6891.649719][   T73]      netlink_unicast+0x449/0x710
[ 6891.649719][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6891.649719][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6891.649719][   T73]      ___sys_sendmsg+0xee/0x170
[ 6891.649719][   T73]      __sys_sendmsg+0xcd/0x170
[ 6891.649719][   T73]      do_syscall_64+0xc6/0x1e0
[ 6891.649719][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6891.649719][   T73] 
[ 6891.651978][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6891.651978][   T73]      netdev_get_by_index+0x5e/0x80
[ 6891.651978][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6891.651978][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6891.651978][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6891.651978][   T73]      ipv6_add_addr+0x411/0x2000
[ 6891.651978][   T73]      inet6_addr_add+0x30e/0xa40
[ 6891.651978][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6891.651978][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6891.651978][   T73]      netlink_rcv_skb+0x130/0x360
[ 6891.651978][   T73]      netlink_unicast+0x449/0x710
[ 6891.651978][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6891.651978][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6891.651978][   T73]      ___sys_sendmsg+0xee/0x170
[ 6891.651978][   T73]      __sys_sendmsg+0xcd/0x170
[ 6891.651978][   T73]      do_syscall_64+0xc6/0x1e0
[ 6891.651978][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6891.651978][   T73] 
[ 6891.654251][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6891.654251][   T73]      netdev_get_by_index+0x5e/0x80
[ 6891.654251][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6891.654251][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6891.654251][   T73]      ip6_route_add+0x1c/0x140
[ 6891.654251][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6891.654251][   T73]      addrconf_add_dev+0xe2/0x170
[ 6891.654251][   T73]      inet6_addr_add+0x12f/0xa40
[ 6891.654251][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6891.654251][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6891.654251][   T73]      netlink_rcv_skb+0x130/0x360
[ 6891.654251][   T73]      netlink_unicast+0x449/0x710
[ 6891.654251][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6891.654251][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6891.654251][   T73]      ___sys_sendmsg+0xee/0x170
[ 6891.654251][   T73]      __sys_sendmsg+0xcd/0x170
[ 6891.654251][   T73]      do_syscall_64+0xc6/0x1e0
[ 6891.654251][   T73] 
[ 6891.656489][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6891.656489][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6891.656489][   T73]      ipv6_find_idev+0x102/0x170
[ 6891.656489][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6891.656489][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6891.656489][   T73]      netlink_rcv_skb+0x130/0x360
[ 6891.656489][   T73]      netlink_unicast+0x449/0x710
[ 6891.656489][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6891.656489][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6891.656489][   T73]      ___sys_sendmsg+0xee/0x170
[ 6891.656489][   T73]      __sys_sendmsg+0xcd/0x170
[ 6891.656489][   T73]      do_syscall_64+0xc6/0x1e0
[ 6891.656489][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6891.656489][   T73] 
[ 6891.658223][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6891.658223][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6891.658223][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6891.658223][   T73]      ipv6_find_idev+0x102/0x170
[ 6891.658223][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6891.658223][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6891.658223][   T73]      netlink_rcv_skb+0x130/0x360
[ 6891.658223][   T73]      netlink_unicast+0x449/0x710
[ 6891.658223][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6891.658223][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6891.658223][   T73]      ___sys_sendmsg+0xee/0x170
[ 6891.658223][   T73]      __sys_sendmsg+0xcd/0x170
[ 6891.658223][   T73]      do_syscall_64+0xc6/0x1e0
[ 6891.658223][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6891.658223][   T73] 
[ 6901.895748][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6901.896163][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6901.896163][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6901.896163][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6901.896163][   T73]      fib6_nh_init+0xa22/0x1580
[ 6901.896163][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6901.896163][   T73]      ip6_route_add+0x1c/0x140
[ 6901.896163][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6901.896163][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6901.896163][   T73]      netlink_rcv_skb+0x130/0x360
[ 6901.896163][   T73]      netlink_unicast+0x449/0x710
[ 6901.896163][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6901.896163][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6901.896163][   T73]      ___sys_sendmsg+0xee/0x170
[ 6901.896163][   T73]      __sys_sendmsg+0xcd/0x170
[ 6901.896163][   T73]      do_syscall_64+0xc6/0x1e0
[ 6901.896163][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6901.896163][   T73] 
[ 6901.898092][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6901.898092][   T73]      dst_init+0x84/0x4a0
[ 6901.898092][   T73]      dst_alloc+0x97/0x150
[ 6901.898092][   T73]      ip6_dst_alloc+0x23/0x90
[ 6901.898092][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6901.898092][   T73]      ip6_pol_route+0x56f/0x840
[ 6901.898092][   T73]      fib6_rule_lookup+0x456/0x630
[ 6901.898092][   T73]      ip6_route_input+0x59c/0xa50
[ 6901.898092][   T73]      ipv6_rcv+0x397/0x810
[ 6901.898092][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6901.898092][   T73]      process_backlog+0x101/0x620
[ 6901.898092][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6901.898092][   T73]      net_rx_action+0x495/0xbe0
[ 6901.898092][   T73]      __do_softirq+0x1b5/0x7f6
[ 6901.898092][   T73] 
[ 6901.899774][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6901.899774][   T73]      netdev_get_by_index+0x5e/0x80
[ 6901.899774][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6901.899774][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6901.899774][   T73]      ip6_route_add+0x1c/0x140
[ 6901.899774][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6901.899774][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6901.899774][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6901.899774][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6901.899774][   T73]      netlink_rcv_skb+0x130/0x360
[ 6901.899774][   T73]      netlink_unicast+0x449/0x710
[ 6901.899774][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6901.899774][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6901.899774][   T73]      ___sys_sendmsg+0xee/0x170
[ 6901.899774][   T73]      __sys_sendmsg+0xcd/0x170
[ 6901.899774][   T73]      do_syscall_64+0xc6/0x1e0
[ 6901.899774][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6901.899774][   T73] 
[ 6901.901800][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6901.901800][   T73]      netdev_get_by_index+0x5e/0x80
[ 6901.901800][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6901.901800][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6901.901800][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6901.901800][   T73]      ipv6_add_addr+0x411/0x2000
[ 6901.901800][   T73]      inet6_addr_add+0x30e/0xa40
[ 6901.901800][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6901.901800][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6901.901800][   T73]      netlink_rcv_skb+0x130/0x360
[ 6901.901800][   T73]      netlink_unicast+0x449/0x710
[ 6901.901800][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6901.901800][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6901.901800][   T73]      ___sys_sendmsg+0xee/0x170
[ 6901.901800][   T73]      __sys_sendmsg+0xcd/0x170
[ 6901.901800][   T73]      do_syscall_64+0xc6/0x1e0
[ 6901.901800][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6901.901800][   T73] 
[ 6901.903836][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6901.903836][   T73]      netdev_get_by_index+0x5e/0x80
[ 6901.903836][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6901.903836][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6901.903836][   T73]      ip6_route_add+0x1c/0x140
[ 6901.903836][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6901.903836][   T73]      addrconf_add_dev+0xe2/0x170
[ 6901.903836][   T73]      inet6_addr_add+0x12f/0xa40
[ 6901.903836][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6901.903836][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6901.903836][   T73]      netlink_rcv_skb+0x130/0x360
[ 6901.903836][   T73]      netlink_unicast+0x449/0x710
[ 6901.903836][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6901.903836][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6901.903836][   T73]      ___sys_sendmsg+0xee/0x170
[ 6901.903836][   T73]      __sys_sendmsg+0xcd/0x170
[ 6901.903836][   T73]      do_syscall_64+0xc6/0x1e0
[ 6901.903836][   T73] 
[ 6901.905820][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6901.905820][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6901.905820][   T73]      ipv6_find_idev+0x102/0x170
[ 6901.905820][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6901.905820][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6901.905820][   T73]      netlink_rcv_skb+0x130/0x360
[ 6901.905820][   T73]      netlink_unicast+0x449/0x710
[ 6901.905820][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6901.905820][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6901.905820][   T73]      ___sys_sendmsg+0xee/0x170
[ 6901.905820][   T73]      __sys_sendmsg+0xcd/0x170
[ 6901.905820][   T73]      do_syscall_64+0xc6/0x1e0
[ 6901.905820][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6901.905820][   T73] 
[ 6901.907383][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6901.907383][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6901.907383][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6901.907383][   T73]      ipv6_find_idev+0x102/0x170
[ 6901.907383][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6901.907383][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6901.907383][   T73]      netlink_rcv_skb+0x130/0x360
[ 6901.907383][   T73]      netlink_unicast+0x449/0x710
[ 6901.907383][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6901.907383][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6901.907383][   T73]      ___sys_sendmsg+0xee/0x170
[ 6901.907383][   T73]      __sys_sendmsg+0xcd/0x170
[ 6901.907383][   T73]      do_syscall_64+0xc6/0x1e0
[ 6901.907383][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6901.907383][   T73] 
[ 6901.909099][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6901.909382][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6901.909382][   T73]      netdev_get_by_index+0x5e/0x80
[ 6901.909382][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6901.909382][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6901.909382][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6901.909382][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6901.909382][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6901.909382][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6901.909382][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6901.909382][   T73]      addrconf_dad_begin+0x310/0x670
[ 6901.909382][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6901.909382][   T73]      process_one_work+0x84d/0x18a0
[ 6901.909382][   T73]      worker_thread+0x587/0xd30
[ 6901.909382][   T73]      kthread+0x28a/0x350
[ 6901.909382][   T73]      ret_from_fork+0x31/0x70
[ 6901.909382][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6901.909382][   T73] 
[ 6901.911370][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6901.911370][   T73]      netdev_get_by_index+0x5e/0x80
[ 6901.911370][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6901.911370][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6901.911370][   T73]      ip6_route_add+0x1c/0x140
[ 6901.911370][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6901.911370][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6901.911370][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6901.911370][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6901.911370][   T73]      netlink_rcv_skb+0x130/0x360
[ 6901.911370][   T73]      netlink_unicast+0x449/0x710
[ 6901.911370][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6901.911370][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6901.911370][   T73]      ___sys_sendmsg+0xee/0x170
[ 6901.911370][   T73]      __sys_sendmsg+0xcd/0x170
[ 6901.911370][   T73]      do_syscall_64+0xc6/0x1e0
[ 6901.911370][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6901.911370][   T73] 
[ 6901.913395][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6901.913395][   T73]      netdev_get_by_index+0x5e/0x80
[ 6901.913395][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6901.913395][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6901.913395][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6901.913395][   T73]      ipv6_add_addr+0x411/0x2000
[ 6901.913395][   T73]      inet6_addr_add+0x30e/0xa40
[ 6901.913395][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6901.913395][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6901.913395][   T73]      netlink_rcv_skb+0x130/0x360
[ 6901.913395][   T73]      netlink_unicast+0x449/0x710
[ 6901.913395][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6901.913395][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6901.913395][   T73]      ___sys_sendmsg+0xee/0x170
[ 6901.913395][   T73]      __sys_sendmsg+0xcd/0x170
[ 6901.913395][   T73]      do_syscall_64+0xc6/0x1e0
[ 6901.913395][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6901.913395][   T73] 
[ 6901.915414][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6901.915414][   T73]      netdev_get_by_index+0x5e/0x80
[ 6901.915414][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6901.915414][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6901.915414][   T73]      ip6_route_add+0x1c/0x140
[ 6901.915414][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6901.915414][   T73]      addrconf_add_dev+0xe2/0x170
[ 6901.915414][   T73]      inet6_addr_add+0x12f/0xa40
[ 6901.915414][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6901.915414][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6901.915414][   T73]      netlink_rcv_skb+0x130/0x360
[ 6901.915414][   T73]      netlink_unicast+0x449/0x710
[ 6901.915414][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6901.915414][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6901.915414][   T73]      ___sys_sendmsg+0xee/0x170
[ 6901.915414][   T73]      __sys_sendmsg+0xcd/0x170
[ 6901.915414][   T73]      do_syscall_64+0xc6/0x1e0
[ 6901.915414][   T73] 
[ 6901.917411][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6901.917411][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6901.917411][   T73]      ipv6_find_idev+0x102/0x170
[ 6901.917411][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6901.917411][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6901.917411][   T73]      netlink_rcv_skb+0x130/0x360
[ 6901.917411][   T73]      netlink_unicast+0x449/0x710
[ 6901.917411][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6901.917411][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6901.917411][   T73]      ___sys_sendmsg+0xee/0x170
[ 6901.917411][   T73]      __sys_sendmsg+0xcd/0x170
[ 6901.917411][   T73]      do_syscall_64+0xc6/0x1e0
[ 6901.917411][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6901.917411][   T73] 
[ 6901.918965][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6901.918965][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6901.918965][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6901.918965][   T73]      ipv6_find_idev+0x102/0x170
[ 6901.918965][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6901.918965][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6901.918965][   T73]      netlink_rcv_skb+0x130/0x360
[ 6901.918965][   T73]      netlink_unicast+0x449/0x710
[ 6901.918965][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6901.918965][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6901.918965][   T73]      ___sys_sendmsg+0xee/0x170
[ 6901.918965][   T73]      __sys_sendmsg+0xcd/0x170
[ 6901.918965][   T73]      do_syscall_64+0xc6/0x1e0
[ 6901.918965][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6901.918965][   T73] 
[ 6901.920676][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6901.920959][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6901.920959][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6901.920959][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6901.920959][   T73]      fib6_nh_init+0xa22/0x1580
[ 6901.920959][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6901.920959][   T73]      ip6_route_add+0x1c/0x140
[ 6901.920959][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6901.920959][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6901.920959][   T73]      netlink_rcv_skb+0x130/0x360
[ 6901.920959][   T73]      netlink_unicast+0x449/0x710
[ 6901.920959][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6901.920959][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6901.920959][   T73]      ___sys_sendmsg+0xee/0x170
[ 6901.920959][   T73]      __sys_sendmsg+0xcd/0x170
[ 6901.920959][   T73]      do_syscall_64+0xc6/0x1e0
[ 6901.920959][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6901.920959][   T73] 
[ 6901.923050][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6901.923050][   T73]      dst_init+0x84/0x4a0
[ 6901.923050][   T73]      dst_alloc+0x97/0x150
[ 6901.923050][   T73]      ip6_dst_alloc+0x23/0x90
[ 6901.923050][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6901.923050][   T73]      ip6_pol_route+0x56f/0x840
[ 6901.923050][   T73]      fib6_rule_lookup+0x456/0x630
[ 6901.923050][   T73]      ip6_route_input+0x59c/0xa50
[ 6901.923050][   T73]      ipv6_rcv+0x397/0x810
[ 6901.923050][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6901.923050][   T73]      process_backlog+0x101/0x620
[ 6901.923050][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6901.923050][   T73]      net_rx_action+0x495/0xbe0
[ 6901.923050][   T73]      __do_softirq+0x1b5/0x7f6
[ 6901.923050][   T73] 
[ 6901.924943][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6901.924943][   T73]      netdev_get_by_index+0x5e/0x80
[ 6901.924943][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6901.924943][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6901.924943][   T73]      ip6_route_add+0x1c/0x140
[ 6901.924943][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6901.924943][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6901.924943][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6901.924943][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6901.924943][   T73]      netlink_rcv_skb+0x130/0x360
[ 6901.924943][   T73]      netlink_unicast+0x449/0x710
[ 6901.924943][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6901.924943][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6901.924943][   T73]      ___sys_sendmsg+0xee/0x170
[ 6901.924943][   T73]      __sys_sendmsg+0xcd/0x170
[ 6901.924943][   T73]      do_syscall_64+0xc6/0x1e0
[ 6901.924943][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6901.924943][   T73] 
[ 6901.927208][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6901.927208][   T73]      netdev_get_by_index+0x5e/0x80
[ 6901.927208][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6901.927208][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6901.927208][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6901.927208][   T73]      ipv6_add_addr+0x411/0x2000
[ 6901.927208][   T73]      inet6_addr_add+0x30e/0xa40
[ 6901.927208][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6901.927208][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6901.927208][   T73]      netlink_rcv_skb+0x130/0x360
[ 6901.927208][   T73]      netlink_unicast+0x449/0x710
[ 6901.927208][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6901.927208][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6901.927208][   T73]      ___sys_sendmsg+0xee/0x170
[ 6901.927208][   T73]      __sys_sendmsg+0xcd/0x170
[ 6901.927208][   T73]      do_syscall_64+0xc6/0x1e0
[ 6901.927208][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6901.927208][   T73] 
[ 6901.929485][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6901.929485][   T73]      netdev_get_by_index+0x5e/0x80
[ 6901.929485][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6901.929485][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6901.929485][   T73]      ip6_route_add+0x1c/0x140
[ 6901.929485][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6901.929485][   T73]      addrconf_add_dev+0xe2/0x170
[ 6901.929485][   T73]      inet6_addr_add+0x12f/0xa40
[ 6901.929485][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6901.929485][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6901.929485][   T73]      netlink_rcv_skb+0x130/0x360
[ 6901.929485][   T73]      netlink_unicast+0x449/0x710
[ 6901.929485][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6901.929485][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6901.929485][   T73]      ___sys_sendmsg+0xee/0x170
[ 6901.929485][   T73]      __sys_sendmsg+0xcd/0x170
[ 6901.929485][   T73]      do_syscall_64+0xc6/0x1e0
[ 6901.929485][   T73] 
[ 6901.931722][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6901.931722][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6901.931722][   T73]      ipv6_find_idev+0x102/0x170
[ 6901.931722][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6901.931722][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6901.931722][   T73]      netlink_rcv_skb+0x130/0x360
[ 6901.931722][   T73]      netlink_unicast+0x449/0x710
[ 6901.931722][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6901.931722][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6901.931722][   T73]      ___sys_sendmsg+0xee/0x170
[ 6901.931722][   T73]      __sys_sendmsg+0xcd/0x170
[ 6901.931722][   T73]      do_syscall_64+0xc6/0x1e0
[ 6901.931722][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6901.931722][   T73] 
[ 6901.933526][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6901.933526][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6901.933526][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6901.933526][   T73]      ipv6_find_idev+0x102/0x170
[ 6901.933526][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6901.933526][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6901.933526][   T73]      netlink_rcv_skb+0x130/0x360
[ 6901.933526][   T73]      netlink_unicast+0x449/0x710
[ 6901.933526][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6901.933526][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6901.933526][   T73]      ___sys_sendmsg+0xee/0x170
[ 6901.933526][   T73]      __sys_sendmsg+0xcd/0x170
[ 6901.933526][   T73]      do_syscall_64+0xc6/0x1e0
[ 6901.933526][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6901.933526][   T73] 
[ 6901.935422][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6901.936139][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6901.936139][   T73]      netdev_get_by_index+0x5e/0x80
[ 6901.936139][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6901.936139][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6901.936139][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6901.936139][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6901.936139][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6901.936139][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6901.936139][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6901.936139][   T73]      addrconf_dad_begin+0x310/0x670
[ 6901.936139][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6901.936139][   T73]      process_one_work+0x84d/0x18a0
[ 6901.936139][   T73]      worker_thread+0x587/0xd30
[ 6901.936139][   T73]      kthread+0x28a/0x350
[ 6901.936139][   T73]      ret_from_fork+0x31/0x70
[ 6901.936139][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6901.936139][   T73] 
[ 6901.938071][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6901.938071][   T73]      netdev_get_by_index+0x5e/0x80
[ 6901.938071][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6901.938071][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6901.938071][   T73]      ip6_route_add+0x1c/0x140
[ 6901.938071][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6901.938071][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6901.938071][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6901.938071][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6901.938071][   T73]      netlink_rcv_skb+0x130/0x360
[ 6901.938071][   T73]      netlink_unicast+0x449/0x710
[ 6901.938071][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6901.938071][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6901.938071][   T73]      ___sys_sendmsg+0xee/0x170
[ 6901.938071][   T73]      __sys_sendmsg+0xcd/0x170
[ 6901.938071][   T73]      do_syscall_64+0xc6/0x1e0
[ 6901.938071][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6901.938071][   T73] 
[ 6901.940220][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6901.940220][   T73]      netdev_get_by_index+0x5e/0x80
[ 6901.940220][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6901.940220][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6901.940220][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6901.940220][   T73]      ipv6_add_addr+0x411/0x2000
[ 6901.940220][   T73]      inet6_addr_add+0x30e/0xa40
[ 6901.940220][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6901.940220][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6901.940220][   T73]      netlink_rcv_skb+0x130/0x360
[ 6901.940220][   T73]      netlink_unicast+0x449/0x710
[ 6901.940220][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6901.940220][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6901.940220][   T73]      ___sys_sendmsg+0xee/0x170
[ 6901.940220][   T73]      __sys_sendmsg+0xcd/0x170
[ 6901.940220][   T73]      do_syscall_64+0xc6/0x1e0
[ 6901.940220][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6901.940220][   T73] 
[ 6901.942483][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6901.942483][   T73]      netdev_get_by_index+0x5e/0x80
[ 6901.942483][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6901.942483][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6901.942483][   T73]      ip6_route_add+0x1c/0x140
[ 6901.942483][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6901.942483][   T73]      addrconf_add_dev+0xe2/0x170
[ 6901.942483][   T73]      inet6_addr_add+0x12f/0xa40
[ 6901.942483][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6901.942483][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6901.942483][   T73]      netlink_rcv_skb+0x130/0x360
[ 6901.942483][   T73]      netlink_unicast+0x449/0x710
[ 6901.942483][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6901.942483][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6901.942483][   T73]      ___sys_sendmsg+0xee/0x170
[ 6901.942483][   T73]      __sys_sendmsg+0xcd/0x170
[ 6901.942483][   T73]      do_syscall_64+0xc6/0x1e0
[ 6901.942483][   T73] 
[ 6901.944661][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6901.944661][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6901.944661][   T73]      ipv6_find_idev+0x102/0x170
[ 6901.944661][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6901.944661][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6901.944661][   T73]      netlink_rcv_skb+0x130/0x360
[ 6901.944661][   T73]      netlink_unicast+0x449/0x710
[ 6901.944661][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6901.944661][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6901.944661][   T73]      ___sys_sendmsg+0xee/0x170
[ 6901.944661][   T73]      __sys_sendmsg+0xcd/0x170
[ 6901.944661][   T73]      do_syscall_64+0xc6/0x1e0
[ 6901.944661][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6901.944661][   T73] 
[ 6901.946458][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6901.946458][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6901.946458][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6901.946458][   T73]      ipv6_find_idev+0x102/0x170
[ 6901.946458][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6901.946458][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6901.946458][   T73]      netlink_rcv_skb+0x130/0x360
[ 6901.946458][   T73]      netlink_unicast+0x449/0x710
[ 6901.946458][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6901.946458][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6901.946458][   T73]      ___sys_sendmsg+0xee/0x170
[ 6901.946458][   T73]      __sys_sendmsg+0xcd/0x170
[ 6901.946458][   T73]      do_syscall_64+0xc6/0x1e0
[ 6901.946458][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6901.946458][   T73] 
[ 6912.183749][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6912.184148][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6912.184148][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6912.184148][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6912.184148][   T73]      fib6_nh_init+0xa22/0x1580
[ 6912.184148][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6912.184148][   T73]      ip6_route_add+0x1c/0x140
[ 6912.184148][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6912.184148][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6912.184148][   T73]      netlink_rcv_skb+0x130/0x360
[ 6912.184148][   T73]      netlink_unicast+0x449/0x710
[ 6912.184148][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6912.184148][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6912.184148][   T73]      ___sys_sendmsg+0xee/0x170
[ 6912.184148][   T73]      __sys_sendmsg+0xcd/0x170
[ 6912.184148][   T73]      do_syscall_64+0xc6/0x1e0
[ 6912.184148][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6912.184148][   T73] 
[ 6912.186069][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6912.186069][   T73]      dst_init+0x84/0x4a0
[ 6912.186069][   T73]      dst_alloc+0x97/0x150
[ 6912.186069][   T73]      ip6_dst_alloc+0x23/0x90
[ 6912.186069][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6912.186069][   T73]      ip6_pol_route+0x56f/0x840
[ 6912.186069][   T73]      fib6_rule_lookup+0x456/0x630
[ 6912.186069][   T73]      ip6_route_input+0x59c/0xa50
[ 6912.186069][   T73]      ipv6_rcv+0x397/0x810
[ 6912.186069][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6912.186069][   T73]      process_backlog+0x101/0x620
[ 6912.186069][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6912.186069][   T73]      net_rx_action+0x495/0xbe0
[ 6912.186069][   T73]      __do_softirq+0x1b5/0x7f6
[ 6912.186069][   T73] 
[ 6912.187728][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6912.187728][   T73]      netdev_get_by_index+0x5e/0x80
[ 6912.187728][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6912.187728][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6912.187728][   T73]      ip6_route_add+0x1c/0x140
[ 6912.187728][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6912.187728][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6912.187728][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6912.187728][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6912.187728][   T73]      netlink_rcv_skb+0x130/0x360
[ 6912.187728][   T73]      netlink_unicast+0x449/0x710
[ 6912.187728][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6912.187728][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6912.187728][   T73]      ___sys_sendmsg+0xee/0x170
[ 6912.187728][   T73]      __sys_sendmsg+0xcd/0x170
[ 6912.187728][   T73]      do_syscall_64+0xc6/0x1e0
[ 6912.187728][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6912.187728][   T73] 
[ 6912.189755][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6912.189755][   T73]      netdev_get_by_index+0x5e/0x80
[ 6912.189755][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6912.189755][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6912.189755][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6912.189755][   T73]      ipv6_add_addr+0x411/0x2000
[ 6912.189755][   T73]      inet6_addr_add+0x30e/0xa40
[ 6912.189755][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6912.189755][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6912.189755][   T73]      netlink_rcv_skb+0x130/0x360
[ 6912.189755][   T73]      netlink_unicast+0x449/0x710
[ 6912.189755][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6912.189755][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6912.189755][   T73]      ___sys_sendmsg+0xee/0x170
[ 6912.189755][   T73]      __sys_sendmsg+0xcd/0x170
[ 6912.189755][   T73]      do_syscall_64+0xc6/0x1e0
[ 6912.189755][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6912.189755][   T73] 
[ 6912.191770][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6912.191770][   T73]      netdev_get_by_index+0x5e/0x80
[ 6912.191770][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6912.191770][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6912.191770][   T73]      ip6_route_add+0x1c/0x140
[ 6912.191770][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6912.191770][   T73]      addrconf_add_dev+0xe2/0x170
[ 6912.191770][   T73]      inet6_addr_add+0x12f/0xa40
[ 6912.191770][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6912.191770][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6912.191770][   T73]      netlink_rcv_skb+0x130/0x360
[ 6912.191770][   T73]      netlink_unicast+0x449/0x710
[ 6912.191770][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6912.191770][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6912.191770][   T73]      ___sys_sendmsg+0xee/0x170
[ 6912.191770][   T73]      __sys_sendmsg+0xcd/0x170
[ 6912.191770][   T73]      do_syscall_64+0xc6/0x1e0
[ 6912.191770][   T73] 
[ 6912.193782][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6912.193782][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6912.193782][   T73]      ipv6_find_idev+0x102/0x170
[ 6912.193782][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6912.193782][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6912.193782][   T73]      netlink_rcv_skb+0x130/0x360
[ 6912.193782][   T73]      netlink_unicast+0x449/0x710
[ 6912.193782][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6912.193782][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6912.193782][   T73]      ___sys_sendmsg+0xee/0x170
[ 6912.193782][   T73]      __sys_sendmsg+0xcd/0x170
[ 6912.193782][   T73]      do_syscall_64+0xc6/0x1e0
[ 6912.193782][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6912.193782][   T73] 
[ 6912.195336][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6912.195336][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6912.195336][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6912.195336][   T73]      ipv6_find_idev+0x102/0x170
[ 6912.195336][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6912.195336][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6912.195336][   T73]      netlink_rcv_skb+0x130/0x360
[ 6912.195336][   T73]      netlink_unicast+0x449/0x710
[ 6912.195336][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6912.195336][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6912.195336][   T73]      ___sys_sendmsg+0xee/0x170
[ 6912.195336][   T73]      __sys_sendmsg+0xcd/0x170
[ 6912.195336][   T73]      do_syscall_64+0xc6/0x1e0
[ 6912.195336][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6912.195336][   T73] 
[ 6912.197050][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6912.197332][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6912.197332][   T73]      netdev_get_by_index+0x5e/0x80
[ 6912.197332][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6912.197332][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6912.197332][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6912.197332][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6912.197332][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6912.197332][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6912.197332][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6912.197332][   T73]      addrconf_dad_begin+0x310/0x670
[ 6912.197332][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6912.197332][   T73]      process_one_work+0x84d/0x18a0
[ 6912.197332][   T73]      worker_thread+0x587/0xd30
[ 6912.197332][   T73]      kthread+0x28a/0x350
[ 6912.197332][   T73]      ret_from_fork+0x31/0x70
[ 6912.197332][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6912.197332][   T73] 
[ 6912.199251][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6912.199251][   T73]      netdev_get_by_index+0x5e/0x80
[ 6912.199251][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6912.199251][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6912.199251][   T73]      ip6_route_add+0x1c/0x140
[ 6912.199251][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6912.199251][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6912.199251][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6912.199251][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6912.199251][   T73]      netlink_rcv_skb+0x130/0x360
[ 6912.199251][   T73]      netlink_unicast+0x449/0x710
[ 6912.199251][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6912.199251][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6912.199251][   T73]      ___sys_sendmsg+0xee/0x170
[ 6912.199251][   T73]      __sys_sendmsg+0xcd/0x170
[ 6912.199251][   T73]      do_syscall_64+0xc6/0x1e0
[ 6912.199251][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6912.199251][   T73] 
[ 6912.201273][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6912.201273][   T73]      netdev_get_by_index+0x5e/0x80
[ 6912.201273][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6912.201273][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6912.201273][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6912.201273][   T73]      ipv6_add_addr+0x411/0x2000
[ 6912.201273][   T73]      inet6_addr_add+0x30e/0xa40
[ 6912.201273][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6912.201273][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6912.201273][   T73]      netlink_rcv_skb+0x130/0x360
[ 6912.201273][   T73]      netlink_unicast+0x449/0x710
[ 6912.201273][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6912.201273][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6912.201273][   T73]      ___sys_sendmsg+0xee/0x170
[ 6912.201273][   T73]      __sys_sendmsg+0xcd/0x170
[ 6912.201273][   T73]      do_syscall_64+0xc6/0x1e0
[ 6912.201273][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6912.201273][   T73] 
[ 6912.203304][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6912.203304][   T73]      netdev_get_by_index+0x5e/0x80
[ 6912.203304][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6912.203304][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6912.203304][   T73]      ip6_route_add+0x1c/0x140
[ 6912.203304][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6912.203304][   T73]      addrconf_add_dev+0xe2/0x170
[ 6912.203304][   T73]      inet6_addr_add+0x12f/0xa40
[ 6912.203304][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6912.203304][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6912.203304][   T73]      netlink_rcv_skb+0x130/0x360
[ 6912.203304][   T73]      netlink_unicast+0x449/0x710
[ 6912.203304][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6912.203304][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6912.203304][   T73]      ___sys_sendmsg+0xee/0x170
[ 6912.203304][   T73]      __sys_sendmsg+0xcd/0x170
[ 6912.203304][   T73]      do_syscall_64+0xc6/0x1e0
[ 6912.203304][   T73] 
[ 6912.205277][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6912.205277][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6912.205277][   T73]      ipv6_find_idev+0x102/0x170
[ 6912.205277][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6912.205277][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6912.205277][   T73]      netlink_rcv_skb+0x130/0x360
[ 6912.205277][   T73]      netlink_unicast+0x449/0x710
[ 6912.205277][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6912.205277][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6912.205277][   T73]      ___sys_sendmsg+0xee/0x170
[ 6912.205277][   T73]      __sys_sendmsg+0xcd/0x170
[ 6912.205277][   T73]      do_syscall_64+0xc6/0x1e0
[ 6912.205277][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6912.205277][   T73] 
[ 6912.206830][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6912.206830][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6912.206830][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6912.206830][   T73]      ipv6_find_idev+0x102/0x170
[ 6912.206830][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6912.206830][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6912.206830][   T73]      netlink_rcv_skb+0x130/0x360
[ 6912.206830][   T73]      netlink_unicast+0x449/0x710
[ 6912.206830][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6912.206830][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6912.206830][   T73]      ___sys_sendmsg+0xee/0x170
[ 6912.206830][   T73]      __sys_sendmsg+0xcd/0x170
[ 6912.206830][   T73]      do_syscall_64+0xc6/0x1e0
[ 6912.206830][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6912.206830][   T73] 
[ 6912.208536][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6912.208822][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6912.208822][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6912.208822][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6912.208822][   T73]      fib6_nh_init+0xa22/0x1580
[ 6912.208822][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6912.208822][   T73]      ip6_route_add+0x1c/0x140
[ 6912.208822][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6912.208822][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6912.208822][   T73]      netlink_rcv_skb+0x130/0x360
[ 6912.208822][   T73]      netlink_unicast+0x449/0x710
[ 6912.208822][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6912.208822][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6912.208822][   T73]      ___sys_sendmsg+0xee/0x170
[ 6912.208822][   T73]      __sys_sendmsg+0xcd/0x170
[ 6912.208822][   T73]      do_syscall_64+0xc6/0x1e0
[ 6912.208822][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6912.208822][   T73] 
[ 6912.210909][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6912.210909][   T73]      dst_init+0x84/0x4a0
[ 6912.210909][   T73]      dst_alloc+0x97/0x150
[ 6912.210909][   T73]      ip6_dst_alloc+0x23/0x90
[ 6912.210909][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6912.210909][   T73]      ip6_pol_route+0x56f/0x840
[ 6912.210909][   T73]      fib6_rule_lookup+0x456/0x630
[ 6912.210909][   T73]      ip6_route_input+0x59c/0xa50
[ 6912.210909][   T73]      ipv6_rcv+0x397/0x810
[ 6912.210909][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6912.210909][   T73]      process_backlog+0x101/0x620
[ 6912.210909][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6912.210909][   T73]      net_rx_action+0x495/0xbe0
[ 6912.210909][   T73]      __do_softirq+0x1b5/0x7f6
[ 6912.210909][   T73] 
[ 6912.212814][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6912.212814][   T73]      netdev_get_by_index+0x5e/0x80
[ 6912.212814][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6912.212814][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6912.212814][   T73]      ip6_route_add+0x1c/0x140
[ 6912.212814][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6912.212814][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6912.212814][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6912.212814][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6912.212814][   T73]      netlink_rcv_skb+0x130/0x360
[ 6912.212814][   T73]      netlink_unicast+0x449/0x710
[ 6912.212814][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6912.212814][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6912.212814][   T73]      ___sys_sendmsg+0xee/0x170
[ 6912.212814][   T73]      __sys_sendmsg+0xcd/0x170
[ 6912.212814][   T73]      do_syscall_64+0xc6/0x1e0
[ 6912.212814][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6912.212814][   T73] 
[ 6912.215096][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6912.215096][   T73]      netdev_get_by_index+0x5e/0x80
[ 6912.215096][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6912.215096][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6912.215096][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6912.215096][   T73]      ipv6_add_addr+0x411/0x2000
[ 6912.215096][   T73]      inet6_addr_add+0x30e/0xa40
[ 6912.215096][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6912.215096][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6912.215096][   T73]      netlink_rcv_skb+0x130/0x360
[ 6912.215096][   T73]      netlink_unicast+0x449/0x710
[ 6912.215096][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6912.215096][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6912.215096][   T73]      ___sys_sendmsg+0xee/0x170
[ 6912.215096][   T73]      __sys_sendmsg+0xcd/0x170
[ 6912.215096][   T73]      do_syscall_64+0xc6/0x1e0
[ 6912.215096][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6912.215096][   T73] 
[ 6912.217350][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6912.217350][   T73]      netdev_get_by_index+0x5e/0x80
[ 6912.217350][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6912.217350][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6912.217350][   T73]      ip6_route_add+0x1c/0x140
[ 6912.217350][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6912.217350][   T73]      addrconf_add_dev+0xe2/0x170
[ 6912.217350][   T73]      inet6_addr_add+0x12f/0xa40
[ 6912.217350][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6912.217350][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6912.217350][   T73]      netlink_rcv_skb+0x130/0x360
[ 6912.217350][   T73]      netlink_unicast+0x449/0x710
[ 6912.217350][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6912.217350][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6912.217350][   T73]      ___sys_sendmsg+0xee/0x170
[ 6912.217350][   T73]      __sys_sendmsg+0xcd/0x170
[ 6912.217350][   T73]      do_syscall_64+0xc6/0x1e0
[ 6912.217350][   T73] 
[ 6912.219576][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6912.219576][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6912.219576][   T73]      ipv6_find_idev+0x102/0x170
[ 6912.219576][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6912.219576][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6912.219576][   T73]      netlink_rcv_skb+0x130/0x360
[ 6912.219576][   T73]      netlink_unicast+0x449/0x710
[ 6912.219576][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6912.219576][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6912.219576][   T73]      ___sys_sendmsg+0xee/0x170
[ 6912.219576][   T73]      __sys_sendmsg+0xcd/0x170
[ 6912.219576][   T73]      do_syscall_64+0xc6/0x1e0
[ 6912.219576][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6912.219576][   T73] 
[ 6912.221369][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6912.221369][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6912.221369][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6912.221369][   T73]      ipv6_find_idev+0x102/0x170
[ 6912.221369][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6912.221369][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6912.221369][   T73]      netlink_rcv_skb+0x130/0x360
[ 6912.221369][   T73]      netlink_unicast+0x449/0x710
[ 6912.221369][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6912.221369][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6912.221369][   T73]      ___sys_sendmsg+0xee/0x170
[ 6912.221369][   T73]      __sys_sendmsg+0xcd/0x170
[ 6912.221369][   T73]      do_syscall_64+0xc6/0x1e0
[ 6912.221369][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6912.221369][   T73] 
[ 6912.223267][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6912.223544][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6912.223544][   T73]      netdev_get_by_index+0x5e/0x80
[ 6912.223544][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6912.223544][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6912.223544][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6912.223544][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6912.223544][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6912.223544][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6912.223544][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6912.223544][   T73]      addrconf_dad_begin+0x310/0x670
[ 6912.223544][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6912.223544][   T73]      process_one_work+0x84d/0x18a0
[ 6912.223544][   T73]      worker_thread+0x587/0xd30
[ 6912.223544][   T73]      kthread+0x28a/0x350
[ 6912.223544][   T73]      ret_from_fork+0x31/0x70
[ 6912.223544][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6912.223544][   T73] 
[ 6912.225714][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6912.225714][   T73]      netdev_get_by_index+0x5e/0x80
[ 6912.225714][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6912.225714][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6912.225714][   T73]      ip6_route_add+0x1c/0x140
[ 6912.225714][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6912.225714][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6912.225714][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6912.225714][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6912.225714][   T73]      netlink_rcv_skb+0x130/0x360
[ 6912.225714][   T73]      netlink_unicast+0x449/0x710
[ 6912.225714][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6912.225714][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6912.225714][   T73]      ___sys_sendmsg+0xee/0x170
[ 6912.225714][   T73]      __sys_sendmsg+0xcd/0x170
[ 6912.225714][   T73]      do_syscall_64+0xc6/0x1e0
[ 6912.225714][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6912.225714][   T73] 
[ 6912.227964][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6912.227964][   T73]      netdev_get_by_index+0x5e/0x80
[ 6912.227964][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6912.227964][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6912.227964][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6912.227964][   T73]      ipv6_add_addr+0x411/0x2000
[ 6912.227964][   T73]      inet6_addr_add+0x30e/0xa40
[ 6912.227964][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6912.227964][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6912.227964][   T73]      netlink_rcv_skb+0x130/0x360
[ 6912.227964][   T73]      netlink_unicast+0x449/0x710
[ 6912.227964][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6912.227964][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6912.227964][   T73]      ___sys_sendmsg+0xee/0x170
[ 6912.227964][   T73]      __sys_sendmsg+0xcd/0x170
[ 6912.227964][   T73]      do_syscall_64+0xc6/0x1e0
[ 6912.227964][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6912.227964][   T73] 
[ 6912.230293][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6912.230293][   T73]      netdev_get_by_index+0x5e/0x80
[ 6912.230293][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6912.230293][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6912.230293][   T73]      ip6_route_add+0x1c/0x140
[ 6912.230293][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6912.230293][   T73]      addrconf_add_dev+0xe2/0x170
[ 6912.230293][   T73]      inet6_addr_add+0x12f/0xa40
[ 6912.230293][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6912.230293][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6912.230293][   T73]      netlink_rcv_skb+0x130/0x360
[ 6912.230293][   T73]      netlink_unicast+0x449/0x710
[ 6912.230293][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6912.230293][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6912.230293][   T73]      ___sys_sendmsg+0xee/0x170
[ 6912.230293][   T73]      __sys_sendmsg+0xcd/0x170
[ 6912.230293][   T73]      do_syscall_64+0xc6/0x1e0
[ 6912.230293][   T73] 
[ 6912.232455][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6912.232455][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6912.232455][   T73]      ipv6_find_idev+0x102/0x170
[ 6912.232455][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6912.232455][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6912.232455][   T73]      netlink_rcv_skb+0x130/0x360
[ 6912.232455][   T73]      netlink_unicast+0x449/0x710
[ 6912.232455][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6912.232455][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6912.232455][   T73]      ___sys_sendmsg+0xee/0x170
[ 6912.232455][   T73]      __sys_sendmsg+0xcd/0x170
[ 6912.232455][   T73]      do_syscall_64+0xc6/0x1e0
[ 6912.232455][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6912.232455][   T73] 
[ 6912.234187][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6912.234187][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6912.234187][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6912.234187][   T73]      ipv6_find_idev+0x102/0x170
[ 6912.234187][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6912.234187][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6912.234187][   T73]      netlink_rcv_skb+0x130/0x360
[ 6912.234187][   T73]      netlink_unicast+0x449/0x710
[ 6912.234187][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6912.234187][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6912.234187][   T73]      ___sys_sendmsg+0xee/0x170
[ 6912.234187][   T73]      __sys_sendmsg+0xcd/0x170
[ 6912.234187][   T73]      do_syscall_64+0xc6/0x1e0
[ 6912.234187][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6912.234187][   T73] 
[ 6922.335756][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6922.336154][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6922.336154][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6922.336154][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6922.336154][   T73]      fib6_nh_init+0xa22/0x1580
[ 6922.336154][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6922.336154][   T73]      ip6_route_add+0x1c/0x140
[ 6922.336154][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6922.336154][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6922.336154][   T73]      netlink_rcv_skb+0x130/0x360
[ 6922.336154][   T73]      netlink_unicast+0x449/0x710
[ 6922.336154][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6922.336154][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6922.336154][   T73]      ___sys_sendmsg+0xee/0x170
[ 6922.336154][   T73]      __sys_sendmsg+0xcd/0x170
[ 6922.336154][   T73]      do_syscall_64+0xc6/0x1e0
[ 6922.336154][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6922.336154][   T73] 
[ 6922.338073][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6922.338073][   T73]      dst_init+0x84/0x4a0
[ 6922.338073][   T73]      dst_alloc+0x97/0x150
[ 6922.338073][   T73]      ip6_dst_alloc+0x23/0x90
[ 6922.338073][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6922.338073][   T73]      ip6_pol_route+0x56f/0x840
[ 6922.338073][   T73]      fib6_rule_lookup+0x456/0x630
[ 6922.338073][   T73]      ip6_route_input+0x59c/0xa50
[ 6922.338073][   T73]      ipv6_rcv+0x397/0x810
[ 6922.338073][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6922.338073][   T73]      process_backlog+0x101/0x620
[ 6922.338073][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6922.338073][   T73]      net_rx_action+0x495/0xbe0
[ 6922.338073][   T73]      __do_softirq+0x1b5/0x7f6
[ 6922.338073][   T73] 
[ 6922.339734][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6922.339734][   T73]      netdev_get_by_index+0x5e/0x80
[ 6922.339734][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6922.339734][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6922.339734][   T73]      ip6_route_add+0x1c/0x140
[ 6922.339734][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6922.339734][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6922.339734][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6922.339734][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6922.339734][   T73]      netlink_rcv_skb+0x130/0x360
[ 6922.339734][   T73]      netlink_unicast+0x449/0x710
[ 6922.339734][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6922.339734][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6922.339734][   T73]      ___sys_sendmsg+0xee/0x170
[ 6922.339734][   T73]      __sys_sendmsg+0xcd/0x170
[ 6922.339734][   T73]      do_syscall_64+0xc6/0x1e0
[ 6922.339734][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6922.339734][   T73] 
[ 6922.341757][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6922.341757][   T73]      netdev_get_by_index+0x5e/0x80
[ 6922.341757][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6922.341757][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6922.341757][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6922.341757][   T73]      ipv6_add_addr+0x411/0x2000
[ 6922.341757][   T73]      inet6_addr_add+0x30e/0xa40
[ 6922.341757][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6922.341757][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6922.341757][   T73]      netlink_rcv_skb+0x130/0x360
[ 6922.341757][   T73]      netlink_unicast+0x449/0x710
[ 6922.341757][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6922.341757][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6922.341757][   T73]      ___sys_sendmsg+0xee/0x170
[ 6922.341757][   T73]      __sys_sendmsg+0xcd/0x170
[ 6922.341757][   T73]      do_syscall_64+0xc6/0x1e0
[ 6922.341757][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6922.341757][   T73] 
[ 6922.343814][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6922.343814][   T73]      netdev_get_by_index+0x5e/0x80
[ 6922.343814][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6922.343814][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6922.343814][   T73]      ip6_route_add+0x1c/0x140
[ 6922.343814][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6922.343814][   T73]      addrconf_add_dev+0xe2/0x170
[ 6922.343814][   T73]      inet6_addr_add+0x12f/0xa40
[ 6922.343814][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6922.343814][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6922.343814][   T73]      netlink_rcv_skb+0x130/0x360
[ 6922.343814][   T73]      netlink_unicast+0x449/0x710
[ 6922.343814][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6922.343814][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6922.343814][   T73]      ___sys_sendmsg+0xee/0x170
[ 6922.343814][   T73]      __sys_sendmsg+0xcd/0x170
[ 6922.343814][   T73]      do_syscall_64+0xc6/0x1e0
[ 6922.343814][   T73] 
[ 6922.345818][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6922.345818][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6922.345818][   T73]      ipv6_find_idev+0x102/0x170
[ 6922.345818][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6922.345818][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6922.345818][   T73]      netlink_rcv_skb+0x130/0x360
[ 6922.345818][   T73]      netlink_unicast+0x449/0x710
[ 6922.345818][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6922.345818][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6922.345818][   T73]      ___sys_sendmsg+0xee/0x170
[ 6922.345818][   T73]      __sys_sendmsg+0xcd/0x170
[ 6922.345818][   T73]      do_syscall_64+0xc6/0x1e0
[ 6922.345818][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6922.345818][   T73] 
[ 6922.347387][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6922.347387][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6922.347387][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6922.347387][   T73]      ipv6_find_idev+0x102/0x170
[ 6922.347387][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6922.347387][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6922.347387][   T73]      netlink_rcv_skb+0x130/0x360
[ 6922.347387][   T73]      netlink_unicast+0x449/0x710
[ 6922.347387][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6922.347387][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6922.347387][   T73]      ___sys_sendmsg+0xee/0x170
[ 6922.347387][   T73]      __sys_sendmsg+0xcd/0x170
[ 6922.347387][   T73]      do_syscall_64+0xc6/0x1e0
[ 6922.347387][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6922.347387][   T73] 
[ 6922.349119][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6922.349397][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6922.349397][   T73]      netdev_get_by_index+0x5e/0x80
[ 6922.349397][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6922.349397][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6922.349397][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6922.349397][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6922.349397][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6922.349397][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6922.349397][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6922.349397][   T73]      addrconf_dad_begin+0x310/0x670
[ 6922.349397][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6922.349397][   T73]      process_one_work+0x84d/0x18a0
[ 6922.349397][   T73]      worker_thread+0x587/0xd30
[ 6922.349397][   T73]      kthread+0x28a/0x350
[ 6922.349397][   T73]      ret_from_fork+0x31/0x70
[ 6922.349397][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6922.349397][   T73] 
[ 6922.351343][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6922.351343][   T73]      netdev_get_by_index+0x5e/0x80
[ 6922.351343][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6922.351343][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6922.351343][   T73]      ip6_route_add+0x1c/0x140
[ 6922.351343][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6922.351343][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6922.351343][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6922.351343][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6922.351343][   T73]      netlink_rcv_skb+0x130/0x360
[ 6922.351343][   T73]      netlink_unicast+0x449/0x710
[ 6922.351343][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6922.351343][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6922.351343][   T73]      ___sys_sendmsg+0xee/0x170
[ 6922.351343][   T73]      __sys_sendmsg+0xcd/0x170
[ 6922.351343][   T73]      do_syscall_64+0xc6/0x1e0
[ 6922.351343][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6922.351343][   T73] 
[ 6922.353369][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6922.353369][   T73]      netdev_get_by_index+0x5e/0x80
[ 6922.353369][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6922.353369][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6922.353369][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6922.353369][   T73]      ipv6_add_addr+0x411/0x2000
[ 6922.353369][   T73]      inet6_addr_add+0x30e/0xa40
[ 6922.353369][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6922.353369][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6922.353369][   T73]      netlink_rcv_skb+0x130/0x360
[ 6922.353369][   T73]      netlink_unicast+0x449/0x710
[ 6922.353369][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6922.353369][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6922.353369][   T73]      ___sys_sendmsg+0xee/0x170
[ 6922.353369][   T73]      __sys_sendmsg+0xcd/0x170
[ 6922.353369][   T73]      do_syscall_64+0xc6/0x1e0
[ 6922.353369][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6922.353369][   T73] 
[ 6922.355924][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6922.355924][   T73]      netdev_get_by_index+0x5e/0x80
[ 6922.355924][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6922.355924][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6922.355924][   T73]      ip6_route_add+0x1c/0x140
[ 6922.355924][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6922.355924][   T73]      addrconf_add_dev+0xe2/0x170
[ 6922.355924][   T73]      inet6_addr_add+0x12f/0xa40
[ 6922.355924][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6922.355924][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6922.355924][   T73]      netlink_rcv_skb+0x130/0x360
[ 6922.355924][   T73]      netlink_unicast+0x449/0x710
[ 6922.355924][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6922.355924][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6922.355924][   T73]      ___sys_sendmsg+0xee/0x170
[ 6922.355924][   T73]      __sys_sendmsg+0xcd/0x170
[ 6922.355924][   T73]      do_syscall_64+0xc6/0x1e0
[ 6922.355924][   T73] 
[ 6922.357912][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6922.357912][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6922.357912][   T73]      ipv6_find_idev+0x102/0x170
[ 6922.357912][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6922.357912][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6922.357912][   T73]      netlink_rcv_skb+0x130/0x360
[ 6922.357912][   T73]      netlink_unicast+0x449/0x710
[ 6922.357912][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6922.357912][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6922.357912][   T73]      ___sys_sendmsg+0xee/0x170
[ 6922.357912][   T73]      __sys_sendmsg+0xcd/0x170
[ 6922.357912][   T73]      do_syscall_64+0xc6/0x1e0
[ 6922.357912][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6922.357912][   T73] 
[ 6922.359480][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6922.359480][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6922.359480][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6922.359480][   T73]      ipv6_find_idev+0x102/0x170
[ 6922.359480][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6922.359480][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6922.359480][   T73]      netlink_rcv_skb+0x130/0x360
[ 6922.359480][   T73]      netlink_unicast+0x449/0x710
[ 6922.359480][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6922.359480][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6922.359480][   T73]      ___sys_sendmsg+0xee/0x170
[ 6922.359480][   T73]      __sys_sendmsg+0xcd/0x170
[ 6922.359480][   T73]      do_syscall_64+0xc6/0x1e0
[ 6922.359480][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6922.359480][   T73] 
[ 6922.361197][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6922.361478][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6922.361478][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6922.361478][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6922.361478][   T73]      fib6_nh_init+0xa22/0x1580
[ 6922.361478][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6922.361478][   T73]      ip6_route_add+0x1c/0x140
[ 6922.361478][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6922.361478][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6922.361478][   T73]      netlink_rcv_skb+0x130/0x360
[ 6922.361478][   T73]      netlink_unicast+0x449/0x710
[ 6922.361478][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6922.361478][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6922.361478][   T73]      ___sys_sendmsg+0xee/0x170
[ 6922.361478][   T73]      __sys_sendmsg+0xcd/0x170
[ 6922.361478][   T73]      do_syscall_64+0xc6/0x1e0
[ 6922.361478][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6922.361478][   T73] 
[ 6922.363580][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6922.363580][   T73]      dst_init+0x84/0x4a0
[ 6922.363580][   T73]      dst_alloc+0x97/0x150
[ 6922.363580][   T73]      ip6_dst_alloc+0x23/0x90
[ 6922.363580][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6922.363580][   T73]      ip6_pol_route+0x56f/0x840
[ 6922.363580][   T73]      fib6_rule_lookup+0x456/0x630
[ 6922.363580][   T73]      ip6_route_input+0x59c/0xa50
[ 6922.363580][   T73]      ipv6_rcv+0x397/0x810
[ 6922.363580][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6922.363580][   T73]      process_backlog+0x101/0x620
[ 6922.363580][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6922.363580][   T73]      net_rx_action+0x495/0xbe0
[ 6922.363580][   T73]      __do_softirq+0x1b5/0x7f6
[ 6922.363580][   T73] 
[ 6922.365497][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6922.365497][   T73]      netdev_get_by_index+0x5e/0x80
[ 6922.365497][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6922.365497][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6922.365497][   T73]      ip6_route_add+0x1c/0x140
[ 6922.365497][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6922.365497][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6922.365497][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6922.365497][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6922.365497][   T73]      netlink_rcv_skb+0x130/0x360
[ 6922.365497][   T73]      netlink_unicast+0x449/0x710
[ 6922.365497][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6922.365497][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6922.365497][   T73]      ___sys_sendmsg+0xee/0x170
[ 6922.365497][   T73]      __sys_sendmsg+0xcd/0x170
[ 6922.365497][   T73]      do_syscall_64+0xc6/0x1e0
[ 6922.365497][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6922.365497][   T73] 
[ 6922.367777][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6922.367777][   T73]      netdev_get_by_index+0x5e/0x80
[ 6922.367777][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6922.367777][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6922.367777][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6922.367777][   T73]      ipv6_add_addr+0x411/0x2000
[ 6922.367777][   T73]      inet6_addr_add+0x30e/0xa40
[ 6922.367777][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6922.367777][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6922.367777][   T73]      netlink_rcv_skb+0x130/0x360
[ 6922.367777][   T73]      netlink_unicast+0x449/0x710
[ 6922.367777][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6922.367777][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6922.367777][   T73]      ___sys_sendmsg+0xee/0x170
[ 6922.367777][   T73]      __sys_sendmsg+0xcd/0x170
[ 6922.367777][   T73]      do_syscall_64+0xc6/0x1e0
[ 6922.367777][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6922.367777][   T73] 
[ 6922.370062][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6922.370062][   T73]      netdev_get_by_index+0x5e/0x80
[ 6922.370062][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6922.370062][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6922.370062][   T73]      ip6_route_add+0x1c/0x140
[ 6922.370062][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6922.370062][   T73]      addrconf_add_dev+0xe2/0x170
[ 6922.370062][   T73]      inet6_addr_add+0x12f/0xa40
[ 6922.370062][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6922.370062][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6922.370062][   T73]      netlink_rcv_skb+0x130/0x360
[ 6922.370062][   T73]      netlink_unicast+0x449/0x710
[ 6922.370062][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6922.370062][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6922.370062][   T73]      ___sys_sendmsg+0xee/0x170
[ 6922.370062][   T73]      __sys_sendmsg+0xcd/0x170
[ 6922.370062][   T73]      do_syscall_64+0xc6/0x1e0
[ 6922.370062][   T73] 
[ 6922.372311][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6922.372311][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6922.372311][   T73]      ipv6_find_idev+0x102/0x170
[ 6922.372311][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6922.372311][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6922.372311][   T73]      netlink_rcv_skb+0x130/0x360
[ 6922.372311][   T73]      netlink_unicast+0x449/0x710
[ 6922.372311][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6922.372311][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6922.372311][   T73]      ___sys_sendmsg+0xee/0x170
[ 6922.372311][   T73]      __sys_sendmsg+0xcd/0x170
[ 6922.372311][   T73]      do_syscall_64+0xc6/0x1e0
[ 6922.372311][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6922.372311][   T73] 
[ 6922.374138][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6922.374138][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6922.374138][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6922.374138][   T73]      ipv6_find_idev+0x102/0x170
[ 6922.374138][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6922.374138][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6922.374138][   T73]      netlink_rcv_skb+0x130/0x360
[ 6922.374138][   T73]      netlink_unicast+0x449/0x710
[ 6922.374138][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6922.374138][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6922.374138][   T73]      ___sys_sendmsg+0xee/0x170
[ 6922.374138][   T73]      __sys_sendmsg+0xcd/0x170
[ 6922.374138][   T73]      do_syscall_64+0xc6/0x1e0
[ 6922.374138][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6922.374138][   T73] 
[ 6922.376040][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6922.376329][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6922.376329][   T73]      netdev_get_by_index+0x5e/0x80
[ 6922.376329][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6922.376329][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6922.376329][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6922.376329][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6922.376329][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6922.376329][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6922.376329][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6922.376329][   T73]      addrconf_dad_begin+0x310/0x670
[ 6922.376329][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6922.376329][   T73]      process_one_work+0x84d/0x18a0
[ 6922.376329][   T73]      worker_thread+0x587/0xd30
[ 6922.376329][   T73]      kthread+0x28a/0x350
[ 6922.376329][   T73]      ret_from_fork+0x31/0x70
[ 6922.376329][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6922.376329][   T73] 
[ 6922.378520][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6922.378520][   T73]      netdev_get_by_index+0x5e/0x80
[ 6922.378520][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6922.378520][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6922.378520][   T73]      ip6_route_add+0x1c/0x140
[ 6922.378520][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6922.378520][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6922.378520][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6922.378520][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6922.378520][   T73]      netlink_rcv_skb+0x130/0x360
[ 6922.378520][   T73]      netlink_unicast+0x449/0x710
[ 6922.378520][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6922.378520][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6922.378520][   T73]      ___sys_sendmsg+0xee/0x170
[ 6922.378520][   T73]      __sys_sendmsg+0xcd/0x170
[ 6922.378520][   T73]      do_syscall_64+0xc6/0x1e0
[ 6922.378520][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6922.378520][   T73] 
[ 6922.380799][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6922.380799][   T73]      netdev_get_by_index+0x5e/0x80
[ 6922.380799][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6922.380799][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6922.380799][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6922.380799][   T73]      ipv6_add_addr+0x411/0x2000
[ 6922.380799][   T73]      inet6_addr_add+0x30e/0xa40
[ 6922.380799][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6922.380799][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6922.380799][   T73]      netlink_rcv_skb+0x130/0x360
[ 6922.380799][   T73]      netlink_unicast+0x449/0x710
[ 6922.380799][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6922.380799][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6922.380799][   T73]      ___sys_sendmsg+0xee/0x170
[ 6922.380799][   T73]      __sys_sendmsg+0xcd/0x170
[ 6922.380799][   T73]      do_syscall_64+0xc6/0x1e0
[ 6922.380799][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6922.380799][   T73] 
[ 6922.385627][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6922.385627][   T73]      netdev_get_by_index+0x5e/0x80
[ 6922.385627][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6922.385627][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6922.385627][   T73]      ip6_route_add+0x1c/0x140
[ 6922.385627][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6922.385627][   T73]      addrconf_add_dev+0xe2/0x170
[ 6922.385627][   T73]      inet6_addr_add+0x12f/0xa40
[ 6922.385627][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6922.385627][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6922.385627][   T73]      netlink_rcv_skb+0x130/0x360
[ 6922.385627][   T73]      netlink_unicast+0x449/0x710
[ 6922.385627][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6922.385627][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6922.385627][   T73]      ___sys_sendmsg+0xee/0x170
[ 6922.385627][   T73]      __sys_sendmsg+0xcd/0x170
[ 6922.385627][   T73]      do_syscall_64+0xc6/0x1e0
[ 6922.385627][   T73] 
[ 6922.387816][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6922.387816][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6922.387816][   T73]      ipv6_find_idev+0x102/0x170
[ 6922.387816][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6922.387816][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6922.387816][   T73]      netlink_rcv_skb+0x130/0x360
[ 6922.387816][   T73]      netlink_unicast+0x449/0x710
[ 6922.387816][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6922.387816][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6922.387816][   T73]      ___sys_sendmsg+0xee/0x170
[ 6922.387816][   T73]      __sys_sendmsg+0xcd/0x170
[ 6922.387816][   T73]      do_syscall_64+0xc6/0x1e0
[ 6922.387816][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6922.387816][   T73] 
[ 6922.389566][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6922.389566][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6922.389566][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6922.389566][   T73]      ipv6_find_idev+0x102/0x170
[ 6922.389566][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6922.389566][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6922.389566][   T73]      netlink_rcv_skb+0x130/0x360
[ 6922.389566][   T73]      netlink_unicast+0x449/0x710
[ 6922.389566][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6922.389566][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6922.389566][   T73]      ___sys_sendmsg+0xee/0x170
[ 6922.389566][   T73]      __sys_sendmsg+0xcd/0x170
[ 6922.389566][   T73]      do_syscall_64+0xc6/0x1e0
[ 6922.389566][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6922.389566][   T73] 
[ 6932.631774][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6932.632264][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6932.632264][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6932.632264][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6932.632264][   T73]      fib6_nh_init+0xa22/0x1580
[ 6932.632264][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6932.632264][   T73]      ip6_route_add+0x1c/0x140
[ 6932.632264][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6932.632264][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6932.632264][   T73]      netlink_rcv_skb+0x130/0x360
[ 6932.632264][   T73]      netlink_unicast+0x449/0x710
[ 6932.632264][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6932.632264][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6932.632264][   T73]      ___sys_sendmsg+0xee/0x170
[ 6932.632264][   T73]      __sys_sendmsg+0xcd/0x170
[ 6932.632264][   T73]      do_syscall_64+0xc6/0x1e0
[ 6932.632264][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6932.632264][   T73] 
[ 6932.634173][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6932.634173][   T73]      dst_init+0x84/0x4a0
[ 6932.634173][   T73]      dst_alloc+0x97/0x150
[ 6932.634173][   T73]      ip6_dst_alloc+0x23/0x90
[ 6932.634173][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6932.634173][   T73]      ip6_pol_route+0x56f/0x840
[ 6932.634173][   T73]      fib6_rule_lookup+0x456/0x630
[ 6932.634173][   T73]      ip6_route_input+0x59c/0xa50
[ 6932.634173][   T73]      ipv6_rcv+0x397/0x810
[ 6932.634173][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6932.634173][   T73]      process_backlog+0x101/0x620
[ 6932.634173][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6932.634173][   T73]      net_rx_action+0x495/0xbe0
[ 6932.634173][   T73]      __do_softirq+0x1b5/0x7f6
[ 6932.634173][   T73] 
[ 6932.635818][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6932.635818][   T73]      netdev_get_by_index+0x5e/0x80
[ 6932.635818][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6932.635818][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6932.635818][   T73]      ip6_route_add+0x1c/0x140
[ 6932.635818][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6932.635818][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6932.635818][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6932.635818][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6932.635818][   T73]      netlink_rcv_skb+0x130/0x360
[ 6932.635818][   T73]      netlink_unicast+0x449/0x710
[ 6932.635818][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6932.635818][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6932.635818][   T73]      ___sys_sendmsg+0xee/0x170
[ 6932.635818][   T73]      __sys_sendmsg+0xcd/0x170
[ 6932.635818][   T73]      do_syscall_64+0xc6/0x1e0
[ 6932.635818][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6932.635818][   T73] 
[ 6932.637832][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6932.637832][   T73]      netdev_get_by_index+0x5e/0x80
[ 6932.637832][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6932.637832][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6932.637832][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6932.637832][   T73]      ipv6_add_addr+0x411/0x2000
[ 6932.637832][   T73]      inet6_addr_add+0x30e/0xa40
[ 6932.637832][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6932.637832][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6932.637832][   T73]      netlink_rcv_skb+0x130/0x360
[ 6932.637832][   T73]      netlink_unicast+0x449/0x710
[ 6932.637832][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6932.637832][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6932.637832][   T73]      ___sys_sendmsg+0xee/0x170
[ 6932.637832][   T73]      __sys_sendmsg+0xcd/0x170
[ 6932.637832][   T73]      do_syscall_64+0xc6/0x1e0
[ 6932.637832][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6932.637832][   T73] 
[ 6932.639837][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6932.639837][   T73]      netdev_get_by_index+0x5e/0x80
[ 6932.639837][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6932.639837][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6932.639837][   T73]      ip6_route_add+0x1c/0x140
[ 6932.639837][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6932.639837][   T73]      addrconf_add_dev+0xe2/0x170
[ 6932.639837][   T73]      inet6_addr_add+0x12f/0xa40
[ 6932.639837][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6932.639837][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6932.639837][   T73]      netlink_rcv_skb+0x130/0x360
[ 6932.639837][   T73]      netlink_unicast+0x449/0x710
[ 6932.639837][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6932.639837][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6932.639837][   T73]      ___sys_sendmsg+0xee/0x170
[ 6932.639837][   T73]      __sys_sendmsg+0xcd/0x170
[ 6932.639837][   T73]      do_syscall_64+0xc6/0x1e0
[ 6932.639837][   T73] 
[ 6932.644603][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6932.644603][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6932.644603][   T73]      ipv6_find_idev+0x102/0x170
[ 6932.644603][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6932.644603][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6932.644603][   T73]      netlink_rcv_skb+0x130/0x360
[ 6932.644603][   T73]      netlink_unicast+0x449/0x710
[ 6932.644603][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6932.644603][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6932.644603][   T73]      ___sys_sendmsg+0xee/0x170
[ 6932.644603][   T73]      __sys_sendmsg+0xcd/0x170
[ 6932.644603][   T73]      do_syscall_64+0xc6/0x1e0
[ 6932.644603][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6932.644603][   T73] 
[ 6932.646147][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6932.646147][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6932.646147][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6932.646147][   T73]      ipv6_find_idev+0x102/0x170
[ 6932.646147][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6932.646147][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6932.646147][   T73]      netlink_rcv_skb+0x130/0x360
[ 6932.646147][   T73]      netlink_unicast+0x449/0x710
[ 6932.646147][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6932.646147][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6932.646147][   T73]      ___sys_sendmsg+0xee/0x170
[ 6932.646147][   T73]      __sys_sendmsg+0xcd/0x170
[ 6932.646147][   T73]      do_syscall_64+0xc6/0x1e0
[ 6932.646147][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6932.646147][   T73] 
[ 6932.647846][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6932.648123][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6932.648123][   T73]      netdev_get_by_index+0x5e/0x80
[ 6932.648123][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6932.648123][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6932.648123][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6932.648123][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6932.648123][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6932.648123][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6932.648123][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6932.648123][   T73]      addrconf_dad_begin+0x310/0x670
[ 6932.648123][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6932.648123][   T73]      process_one_work+0x84d/0x18a0
[ 6932.648123][   T73]      worker_thread+0x587/0xd30
[ 6932.648123][   T73]      kthread+0x28a/0x350
[ 6932.648123][   T73]      ret_from_fork+0x31/0x70
[ 6932.648123][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6932.648123][   T73] 
[ 6932.650567][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6932.650567][   T73]      netdev_get_by_index+0x5e/0x80
[ 6932.650567][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6932.650567][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6932.650567][   T73]      ip6_route_add+0x1c/0x140
[ 6932.650567][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6932.650567][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6932.650567][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6932.650567][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6932.650567][   T73]      netlink_rcv_skb+0x130/0x360
[ 6932.650567][   T73]      netlink_unicast+0x449/0x710
[ 6932.650567][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6932.650567][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6932.650567][   T73]      ___sys_sendmsg+0xee/0x170
[ 6932.650567][   T73]      __sys_sendmsg+0xcd/0x170
[ 6932.650567][   T73]      do_syscall_64+0xc6/0x1e0
[ 6932.650567][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6932.650567][   T73] 
[ 6932.652598][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6932.652598][   T73]      netdev_get_by_index+0x5e/0x80
[ 6932.652598][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6932.652598][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6932.652598][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6932.652598][   T73]      ipv6_add_addr+0x411/0x2000
[ 6932.652598][   T73]      inet6_addr_add+0x30e/0xa40
[ 6932.652598][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6932.652598][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6932.652598][   T73]      netlink_rcv_skb+0x130/0x360
[ 6932.652598][   T73]      netlink_unicast+0x449/0x710
[ 6932.652598][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6932.652598][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6932.652598][   T73]      ___sys_sendmsg+0xee/0x170
[ 6932.652598][   T73]      __sys_sendmsg+0xcd/0x170
[ 6932.652598][   T73]      do_syscall_64+0xc6/0x1e0
[ 6932.652598][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6932.652598][   T73] 
[ 6932.654606][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6932.654606][   T73]      netdev_get_by_index+0x5e/0x80
[ 6932.654606][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6932.654606][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6932.654606][   T73]      ip6_route_add+0x1c/0x140
[ 6932.654606][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6932.654606][   T73]      addrconf_add_dev+0xe2/0x170
[ 6932.654606][   T73]      inet6_addr_add+0x12f/0xa40
[ 6932.654606][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6932.654606][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6932.654606][   T73]      netlink_rcv_skb+0x130/0x360
[ 6932.654606][   T73]      netlink_unicast+0x449/0x710
[ 6932.654606][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6932.654606][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6932.654606][   T73]      ___sys_sendmsg+0xee/0x170
[ 6932.654606][   T73]      __sys_sendmsg+0xcd/0x170
[ 6932.654606][   T73]      do_syscall_64+0xc6/0x1e0
[ 6932.654606][   T73] 
[ 6932.656582][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6932.656582][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6932.656582][   T73]      ipv6_find_idev+0x102/0x170
[ 6932.656582][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6932.656582][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6932.656582][   T73]      netlink_rcv_skb+0x130/0x360
[ 6932.656582][   T73]      netlink_unicast+0x449/0x710
[ 6932.656582][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6932.656582][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6932.656582][   T73]      ___sys_sendmsg+0xee/0x170
[ 6932.656582][   T73]      __sys_sendmsg+0xcd/0x170
[ 6932.656582][   T73]      do_syscall_64+0xc6/0x1e0
[ 6932.656582][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6932.656582][   T73] 
[ 6932.658124][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6932.658124][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6932.658124][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6932.658124][   T73]      ipv6_find_idev+0x102/0x170
[ 6932.658124][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6932.658124][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6932.658124][   T73]      netlink_rcv_skb+0x130/0x360
[ 6932.658124][   T73]      netlink_unicast+0x449/0x710
[ 6932.658124][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6932.658124][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6932.658124][   T73]      ___sys_sendmsg+0xee/0x170
[ 6932.658124][   T73]      __sys_sendmsg+0xcd/0x170
[ 6932.658124][   T73]      do_syscall_64+0xc6/0x1e0
[ 6932.658124][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6932.658124][   T73] 
[ 6932.659819][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6932.660082][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6932.660082][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6932.660082][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6932.660082][   T73]      fib6_nh_init+0xa22/0x1580
[ 6932.660082][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6932.660082][   T73]      ip6_route_add+0x1c/0x140
[ 6932.660082][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6932.660082][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6932.660082][   T73]      netlink_rcv_skb+0x130/0x360
[ 6932.660082][   T73]      netlink_unicast+0x449/0x710
[ 6932.660082][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6932.660082][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6932.660082][   T73]      ___sys_sendmsg+0xee/0x170
[ 6932.660082][   T73]      __sys_sendmsg+0xcd/0x170
[ 6932.660082][   T73]      do_syscall_64+0xc6/0x1e0
[ 6932.660082][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6932.660082][   T73] 
[ 6932.662168][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6932.662168][   T73]      dst_init+0x84/0x4a0
[ 6932.662168][   T73]      dst_alloc+0x97/0x150
[ 6932.662168][   T73]      ip6_dst_alloc+0x23/0x90
[ 6932.662168][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6932.662168][   T73]      ip6_pol_route+0x56f/0x840
[ 6932.662168][   T73]      fib6_rule_lookup+0x456/0x630
[ 6932.662168][   T73]      ip6_route_input+0x59c/0xa50
[ 6932.662168][   T73]      ipv6_rcv+0x397/0x810
[ 6932.662168][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6932.662168][   T73]      process_backlog+0x101/0x620
[ 6932.662168][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6932.662168][   T73]      net_rx_action+0x495/0xbe0
[ 6932.662168][   T73]      __do_softirq+0x1b5/0x7f6
[ 6932.662168][   T73] 
[ 6932.664071][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6932.664071][   T73]      netdev_get_by_index+0x5e/0x80
[ 6932.664071][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6932.664071][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6932.664071][   T73]      ip6_route_add+0x1c/0x140
[ 6932.664071][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6932.664071][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6932.664071][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6932.664071][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6932.664071][   T73]      netlink_rcv_skb+0x130/0x360
[ 6932.664071][   T73]      netlink_unicast+0x449/0x710
[ 6932.664071][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6932.664071][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6932.664071][   T73]      ___sys_sendmsg+0xee/0x170
[ 6932.664071][   T73]      __sys_sendmsg+0xcd/0x170
[ 6932.664071][   T73]      do_syscall_64+0xc6/0x1e0
[ 6932.664071][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6932.664071][   T73] 
[ 6932.666316][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6932.666316][   T73]      netdev_get_by_index+0x5e/0x80
[ 6932.666316][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6932.666316][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6932.666316][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6932.666316][   T73]      ipv6_add_addr+0x411/0x2000
[ 6932.666316][   T73]      inet6_addr_add+0x30e/0xa40
[ 6932.666316][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6932.666316][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6932.666316][   T73]      netlink_rcv_skb+0x130/0x360
[ 6932.666316][   T73]      netlink_unicast+0x449/0x710
[ 6932.666316][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6932.666316][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6932.666316][   T73]      ___sys_sendmsg+0xee/0x170
[ 6932.666316][   T73]      __sys_sendmsg+0xcd/0x170
[ 6932.666316][   T73]      do_syscall_64+0xc6/0x1e0
[ 6932.666316][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6932.666316][   T73] 
[ 6932.670304][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6932.670304][   T73]      netdev_get_by_index+0x5e/0x80
[ 6932.670304][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6932.670304][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6932.670304][   T73]      ip6_route_add+0x1c/0x140
[ 6932.670304][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6932.670304][   T73]      addrconf_add_dev+0xe2/0x170
[ 6932.670304][   T73]      inet6_addr_add+0x12f/0xa40
[ 6932.670304][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6932.670304][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6932.670304][   T73]      netlink_rcv_skb+0x130/0x360
[ 6932.670304][   T73]      netlink_unicast+0x449/0x710
[ 6932.670304][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6932.670304][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6932.670304][   T73]      ___sys_sendmsg+0xee/0x170
[ 6932.670304][   T73]      __sys_sendmsg+0xcd/0x170
[ 6932.670304][   T73]      do_syscall_64+0xc6/0x1e0
[ 6932.670304][   T73] 
[ 6932.672539][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6932.672539][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6932.672539][   T73]      ipv6_find_idev+0x102/0x170
[ 6932.672539][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6932.672539][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6932.672539][   T73]      netlink_rcv_skb+0x130/0x360
[ 6932.672539][   T73]      netlink_unicast+0x449/0x710
[ 6932.672539][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6932.672539][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6932.672539][   T73]      ___sys_sendmsg+0xee/0x170
[ 6932.672539][   T73]      __sys_sendmsg+0xcd/0x170
[ 6932.672539][   T73]      do_syscall_64+0xc6/0x1e0
[ 6932.672539][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6932.672539][   T73] 
[ 6932.674336][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6932.674336][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6932.674336][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6932.674336][   T73]      ipv6_find_idev+0x102/0x170
[ 6932.674336][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6932.674336][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6932.674336][   T73]      netlink_rcv_skb+0x130/0x360
[ 6932.674336][   T73]      netlink_unicast+0x449/0x710
[ 6932.674336][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6932.674336][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6932.674336][   T73]      ___sys_sendmsg+0xee/0x170
[ 6932.674336][   T73]      __sys_sendmsg+0xcd/0x170
[ 6932.674336][   T73]      do_syscall_64+0xc6/0x1e0
[ 6932.674336][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6932.674336][   T73] 
[ 6932.676279][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6932.676566][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6932.676566][   T73]      netdev_get_by_index+0x5e/0x80
[ 6932.676566][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6932.676566][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6932.676566][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6932.676566][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6932.676566][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6932.676566][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6932.676566][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6932.676566][   T73]      addrconf_dad_begin+0x310/0x670
[ 6932.676566][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6932.676566][   T73]      process_one_work+0x84d/0x18a0
[ 6932.676566][   T73]      worker_thread+0x587/0xd30
[ 6932.676566][   T73]      kthread+0x28a/0x350
[ 6932.676566][   T73]      ret_from_fork+0x31/0x70
[ 6932.676566][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6932.676566][   T73] 
[ 6932.678737][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6932.678737][   T73]      netdev_get_by_index+0x5e/0x80
[ 6932.678737][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6932.678737][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6932.678737][   T73]      ip6_route_add+0x1c/0x140
[ 6932.678737][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6932.678737][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6932.678737][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6932.678737][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6932.678737][   T73]      netlink_rcv_skb+0x130/0x360
[ 6932.678737][   T73]      netlink_unicast+0x449/0x710
[ 6932.678737][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6932.678737][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6932.678737][   T73]      ___sys_sendmsg+0xee/0x170
[ 6932.678737][   T73]      __sys_sendmsg+0xcd/0x170
[ 6932.678737][   T73]      do_syscall_64+0xc6/0x1e0
[ 6932.678737][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6932.678737][   T73] 
[ 6932.680927][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6932.680927][   T73]      netdev_get_by_index+0x5e/0x80
[ 6932.680927][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6932.680927][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6932.680927][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6932.680927][   T73]      ipv6_add_addr+0x411/0x2000
[ 6932.680927][   T73]      inet6_addr_add+0x30e/0xa40
[ 6932.680927][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6932.680927][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6932.680927][   T73]      netlink_rcv_skb+0x130/0x360
[ 6932.680927][   T73]      netlink_unicast+0x449/0x710
[ 6932.680927][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6932.680927][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6932.680927][   T73]      ___sys_sendmsg+0xee/0x170
[ 6932.680927][   T73]      __sys_sendmsg+0xcd/0x170
[ 6932.680927][   T73]      do_syscall_64+0xc6/0x1e0
[ 6932.680927][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6932.680927][   T73] 
[ 6932.683191][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6932.683191][   T73]      netdev_get_by_index+0x5e/0x80
[ 6932.683191][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6932.683191][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6932.683191][   T73]      ip6_route_add+0x1c/0x140
[ 6932.683191][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6932.683191][   T73]      addrconf_add_dev+0xe2/0x170
[ 6932.683191][   T73]      inet6_addr_add+0x12f/0xa40
[ 6932.683191][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6932.683191][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6932.683191][   T73]      netlink_rcv_skb+0x130/0x360
[ 6932.683191][   T73]      netlink_unicast+0x449/0x710
[ 6932.683191][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6932.683191][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6932.683191][   T73]      ___sys_sendmsg+0xee/0x170
[ 6932.683191][   T73]      __sys_sendmsg+0xcd/0x170
[ 6932.683191][   T73]      do_syscall_64+0xc6/0x1e0
[ 6932.683191][   T73] 
[ 6932.685469][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6932.685469][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6932.685469][   T73]      ipv6_find_idev+0x102/0x170
[ 6932.685469][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6932.685469][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6932.685469][   T73]      netlink_rcv_skb+0x130/0x360
[ 6932.685469][   T73]      netlink_unicast+0x449/0x710
[ 6932.685469][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6932.685469][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6932.685469][   T73]      ___sys_sendmsg+0xee/0x170
[ 6932.685469][   T73]      __sys_sendmsg+0xcd/0x170
[ 6932.685469][   T73]      do_syscall_64+0xc6/0x1e0
[ 6932.685469][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6932.685469][   T73] 
[ 6932.687207][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6932.687207][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6932.687207][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6932.687207][   T73]      ipv6_find_idev+0x102/0x170
[ 6932.687207][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6932.687207][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6932.687207][   T73]      netlink_rcv_skb+0x130/0x360
[ 6932.687207][   T73]      netlink_unicast+0x449/0x710
[ 6932.687207][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6932.687207][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6932.687207][   T73]      ___sys_sendmsg+0xee/0x170
[ 6932.687207][   T73]      __sys_sendmsg+0xcd/0x170
[ 6932.687207][   T73]      do_syscall_64+0xc6/0x1e0
[ 6932.687207][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6932.687207][   T73] 
[ 6942.927768][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6942.928245][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6942.928245][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6942.928245][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6942.928245][   T73]      fib6_nh_init+0xa22/0x1580
[ 6942.928245][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6942.928245][   T73]      ip6_route_add+0x1c/0x140
[ 6942.928245][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6942.928245][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6942.928245][   T73]      netlink_rcv_skb+0x130/0x360
[ 6942.928245][   T73]      netlink_unicast+0x449/0x710
[ 6942.928245][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6942.928245][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6942.928245][   T73]      ___sys_sendmsg+0xee/0x170
[ 6942.928245][   T73]      __sys_sendmsg+0xcd/0x170
[ 6942.928245][   T73]      do_syscall_64+0xc6/0x1e0
[ 6942.928245][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6942.928245][   T73] 
[ 6942.930152][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6942.930152][   T73]      dst_init+0x84/0x4a0
[ 6942.930152][   T73]      dst_alloc+0x97/0x150
[ 6942.930152][   T73]      ip6_dst_alloc+0x23/0x90
[ 6942.930152][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6942.930152][   T73]      ip6_pol_route+0x56f/0x840
[ 6942.930152][   T73]      fib6_rule_lookup+0x456/0x630
[ 6942.930152][   T73]      ip6_route_input+0x59c/0xa50
[ 6942.930152][   T73]      ipv6_rcv+0x397/0x810
[ 6942.930152][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6942.930152][   T73]      process_backlog+0x101/0x620
[ 6942.930152][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6942.930152][   T73]      net_rx_action+0x495/0xbe0
[ 6942.930152][   T73]      __do_softirq+0x1b5/0x7f6
[ 6942.930152][   T73] 
[ 6942.931804][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6942.931804][   T73]      netdev_get_by_index+0x5e/0x80
[ 6942.931804][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6942.931804][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6942.931804][   T73]      ip6_route_add+0x1c/0x140
[ 6942.931804][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6942.931804][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6942.931804][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6942.931804][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6942.931804][   T73]      netlink_rcv_skb+0x130/0x360
[ 6942.931804][   T73]      netlink_unicast+0x449/0x710
[ 6942.931804][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6942.931804][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6942.931804][   T73]      ___sys_sendmsg+0xee/0x170
[ 6942.931804][   T73]      __sys_sendmsg+0xcd/0x170
[ 6942.931804][   T73]      do_syscall_64+0xc6/0x1e0
[ 6942.931804][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6942.931804][   T73] 
[ 6942.933837][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6942.933837][   T73]      netdev_get_by_index+0x5e/0x80
[ 6942.933837][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6942.933837][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6942.933837][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6942.933837][   T73]      ipv6_add_addr+0x411/0x2000
[ 6942.933837][   T73]      inet6_addr_add+0x30e/0xa40
[ 6942.933837][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6942.933837][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6942.933837][   T73]      netlink_rcv_skb+0x130/0x360
[ 6942.933837][   T73]      netlink_unicast+0x449/0x710
[ 6942.933837][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6942.933837][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6942.933837][   T73]      ___sys_sendmsg+0xee/0x170
[ 6942.933837][   T73]      __sys_sendmsg+0xcd/0x170
[ 6942.933837][   T73]      do_syscall_64+0xc6/0x1e0
[ 6942.933837][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6942.933837][   T73] 
[ 6942.935852][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6942.935852][   T73]      netdev_get_by_index+0x5e/0x80
[ 6942.935852][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6942.935852][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6942.935852][   T73]      ip6_route_add+0x1c/0x140
[ 6942.935852][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6942.935852][   T73]      addrconf_add_dev+0xe2/0x170
[ 6942.935852][   T73]      inet6_addr_add+0x12f/0xa40
[ 6942.935852][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6942.935852][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6942.935852][   T73]      netlink_rcv_skb+0x130/0x360
[ 6942.935852][   T73]      netlink_unicast+0x449/0x710
[ 6942.935852][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6942.935852][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6942.935852][   T73]      ___sys_sendmsg+0xee/0x170
[ 6942.935852][   T73]      __sys_sendmsg+0xcd/0x170
[ 6942.935852][   T73]      do_syscall_64+0xc6/0x1e0
[ 6942.935852][   T73] 
[ 6942.937833][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6942.937833][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6942.937833][   T73]      ipv6_find_idev+0x102/0x170
[ 6942.937833][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6942.937833][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6942.937833][   T73]      netlink_rcv_skb+0x130/0x360
[ 6942.937833][   T73]      netlink_unicast+0x449/0x710
[ 6942.937833][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6942.937833][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6942.937833][   T73]      ___sys_sendmsg+0xee/0x170
[ 6942.937833][   T73]      __sys_sendmsg+0xcd/0x170
[ 6942.937833][   T73]      do_syscall_64+0xc6/0x1e0
[ 6942.937833][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6942.937833][   T73] 
[ 6942.940018][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6942.940018][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6942.940018][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6942.940018][   T73]      ipv6_find_idev+0x102/0x170
[ 6942.940018][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6942.940018][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6942.940018][   T73]      netlink_rcv_skb+0x130/0x360
[ 6942.940018][   T73]      netlink_unicast+0x449/0x710
[ 6942.940018][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6942.940018][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6942.940018][   T73]      ___sys_sendmsg+0xee/0x170
[ 6942.940018][   T73]      __sys_sendmsg+0xcd/0x170
[ 6942.940018][   T73]      do_syscall_64+0xc6/0x1e0
[ 6942.940018][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6942.940018][   T73] 
[ 6942.941710][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6942.941990][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6942.941990][   T73]      netdev_get_by_index+0x5e/0x80
[ 6942.941990][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6942.941990][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6942.941990][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6942.941990][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6942.941990][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6942.941990][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6942.941990][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6942.941990][   T73]      addrconf_dad_begin+0x310/0x670
[ 6942.941990][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6942.941990][   T73]      process_one_work+0x84d/0x18a0
[ 6942.941990][   T73]      worker_thread+0x587/0xd30
[ 6942.941990][   T73]      kthread+0x28a/0x350
[ 6942.941990][   T73]      ret_from_fork+0x31/0x70
[ 6942.941990][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6942.941990][   T73] 
[ 6942.943929][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6942.943929][   T73]      netdev_get_by_index+0x5e/0x80
[ 6942.943929][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6942.943929][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6942.943929][   T73]      ip6_route_add+0x1c/0x140
[ 6942.943929][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6942.943929][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6942.943929][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6942.943929][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6942.943929][   T73]      netlink_rcv_skb+0x130/0x360
[ 6942.943929][   T73]      netlink_unicast+0x449/0x710
[ 6942.943929][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6942.943929][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6942.943929][   T73]      ___sys_sendmsg+0xee/0x170
[ 6942.943929][   T73]      __sys_sendmsg+0xcd/0x170
[ 6942.943929][   T73]      do_syscall_64+0xc6/0x1e0
[ 6942.943929][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6942.943929][   T73] 
[ 6942.945945][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6942.945945][   T73]      netdev_get_by_index+0x5e/0x80
[ 6942.945945][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6942.945945][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6942.945945][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6942.945945][   T73]      ipv6_add_addr+0x411/0x2000
[ 6942.945945][   T73]      inet6_addr_add+0x30e/0xa40
[ 6942.945945][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6942.945945][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6942.945945][   T73]      netlink_rcv_skb+0x130/0x360
[ 6942.945945][   T73]      netlink_unicast+0x449/0x710
[ 6942.945945][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6942.945945][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6942.945945][   T73]      ___sys_sendmsg+0xee/0x170
[ 6942.945945][   T73]      __sys_sendmsg+0xcd/0x170
[ 6942.945945][   T73]      do_syscall_64+0xc6/0x1e0
[ 6942.945945][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6942.945945][   T73] 
[ 6942.947952][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6942.947952][   T73]      netdev_get_by_index+0x5e/0x80
[ 6942.947952][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6942.947952][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6942.947952][   T73]      ip6_route_add+0x1c/0x140
[ 6942.947952][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6942.947952][   T73]      addrconf_add_dev+0xe2/0x170
[ 6942.947952][   T73]      inet6_addr_add+0x12f/0xa40
[ 6942.947952][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6942.947952][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6942.947952][   T73]      netlink_rcv_skb+0x130/0x360
[ 6942.947952][   T73]      netlink_unicast+0x449/0x710
[ 6942.947952][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6942.947952][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6942.947952][   T73]      ___sys_sendmsg+0xee/0x170
[ 6942.947952][   T73]      __sys_sendmsg+0xcd/0x170
[ 6942.947952][   T73]      do_syscall_64+0xc6/0x1e0
[ 6942.947952][   T73] 
[ 6942.949911][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6942.949911][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6942.949911][   T73]      ipv6_find_idev+0x102/0x170
[ 6942.949911][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6942.949911][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6942.949911][   T73]      netlink_rcv_skb+0x130/0x360
[ 6942.949911][   T73]      netlink_unicast+0x449/0x710
[ 6942.949911][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6942.949911][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6942.949911][   T73]      ___sys_sendmsg+0xee/0x170
[ 6942.949911][   T73]      __sys_sendmsg+0xcd/0x170
[ 6942.949911][   T73]      do_syscall_64+0xc6/0x1e0
[ 6942.949911][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6942.949911][   T73] 
[ 6942.951449][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6942.951449][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6942.951449][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6942.951449][   T73]      ipv6_find_idev+0x102/0x170
[ 6942.951449][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6942.951449][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6942.951449][   T73]      netlink_rcv_skb+0x130/0x360
[ 6942.951449][   T73]      netlink_unicast+0x449/0x710
[ 6942.951449][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6942.951449][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6942.951449][   T73]      ___sys_sendmsg+0xee/0x170
[ 6942.951449][   T73]      __sys_sendmsg+0xcd/0x170
[ 6942.951449][   T73]      do_syscall_64+0xc6/0x1e0
[ 6942.951449][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6942.951449][   T73] 
[ 6942.953236][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6942.953504][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6942.953504][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6942.953504][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6942.953504][   T73]      fib6_nh_init+0xa22/0x1580
[ 6942.953504][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6942.953504][   T73]      ip6_route_add+0x1c/0x140
[ 6942.953504][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6942.953504][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6942.953504][   T73]      netlink_rcv_skb+0x130/0x360
[ 6942.953504][   T73]      netlink_unicast+0x449/0x710
[ 6942.953504][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6942.953504][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6942.953504][   T73]      ___sys_sendmsg+0xee/0x170
[ 6942.953504][   T73]      __sys_sendmsg+0xcd/0x170
[ 6942.953504][   T73]      do_syscall_64+0xc6/0x1e0
[ 6942.953504][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6942.953504][   T73] 
[ 6942.955562][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6942.955562][   T73]      dst_init+0x84/0x4a0
[ 6942.955562][   T73]      dst_alloc+0x97/0x150
[ 6942.955562][   T73]      ip6_dst_alloc+0x23/0x90
[ 6942.955562][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6942.955562][   T73]      ip6_pol_route+0x56f/0x840
[ 6942.955562][   T73]      fib6_rule_lookup+0x456/0x630
[ 6942.955562][   T73]      ip6_route_input+0x59c/0xa50
[ 6942.955562][   T73]      ipv6_rcv+0x397/0x810
[ 6942.955562][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6942.955562][   T73]      process_backlog+0x101/0x620
[ 6942.955562][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6942.955562][   T73]      net_rx_action+0x495/0xbe0
[ 6942.955562][   T73]      __do_softirq+0x1b5/0x7f6
[ 6942.955562][   T73] 
[ 6942.957367][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6942.957367][   T73]      netdev_get_by_index+0x5e/0x80
[ 6942.957367][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6942.957367][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6942.957367][   T73]      ip6_route_add+0x1c/0x140
[ 6942.957367][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6942.957367][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6942.957367][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6942.957367][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6942.957367][   T73]      netlink_rcv_skb+0x130/0x360
[ 6942.957367][   T73]      netlink_unicast+0x449/0x710
[ 6942.957367][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6942.957367][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6942.957367][   T73]      ___sys_sendmsg+0xee/0x170
[ 6942.957367][   T73]      __sys_sendmsg+0xcd/0x170
[ 6942.957367][   T73]      do_syscall_64+0xc6/0x1e0
[ 6942.957367][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6942.957367][   T73] 
[ 6942.959603][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6942.959603][   T73]      netdev_get_by_index+0x5e/0x80
[ 6942.959603][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6942.959603][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6942.959603][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6942.959603][   T73]      ipv6_add_addr+0x411/0x2000
[ 6942.959603][   T73]      inet6_addr_add+0x30e/0xa40
[ 6942.959603][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6942.959603][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6942.959603][   T73]      netlink_rcv_skb+0x130/0x360
[ 6942.959603][   T73]      netlink_unicast+0x449/0x710
[ 6942.959603][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6942.959603][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6942.959603][   T73]      ___sys_sendmsg+0xee/0x170
[ 6942.959603][   T73]      __sys_sendmsg+0xcd/0x170
[ 6942.959603][   T73]      do_syscall_64+0xc6/0x1e0
[ 6942.959603][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6942.959603][   T73] 
[ 6942.961863][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6942.961863][   T73]      netdev_get_by_index+0x5e/0x80
[ 6942.961863][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6942.961863][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6942.961863][   T73]      ip6_route_add+0x1c/0x140
[ 6942.961863][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6942.961863][   T73]      addrconf_add_dev+0xe2/0x170
[ 6942.961863][   T73]      inet6_addr_add+0x12f/0xa40
[ 6942.961863][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6942.961863][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6942.961863][   T73]      netlink_rcv_skb+0x130/0x360
[ 6942.961863][   T73]      netlink_unicast+0x449/0x710
[ 6942.961863][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6942.961863][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6942.961863][   T73]      ___sys_sendmsg+0xee/0x170
[ 6942.961863][   T73]      __sys_sendmsg+0xcd/0x170
[ 6942.961863][   T73]      do_syscall_64+0xc6/0x1e0
[ 6942.961863][   T73] 
[ 6942.964084][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6942.964084][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6942.964084][   T73]      ipv6_find_idev+0x102/0x170
[ 6942.964084][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6942.964084][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6942.964084][   T73]      netlink_rcv_skb+0x130/0x360
[ 6942.964084][   T73]      netlink_unicast+0x449/0x710
[ 6942.964084][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6942.964084][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6942.964084][   T73]      ___sys_sendmsg+0xee/0x170
[ 6942.964084][   T73]      __sys_sendmsg+0xcd/0x170
[ 6942.964084][   T73]      do_syscall_64+0xc6/0x1e0
[ 6942.964084][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6942.964084][   T73] 
[ 6942.965843][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6942.965843][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6942.965843][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6942.965843][   T73]      ipv6_find_idev+0x102/0x170
[ 6942.965843][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6942.965843][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6942.965843][   T73]      netlink_rcv_skb+0x130/0x360
[ 6942.965843][   T73]      netlink_unicast+0x449/0x710
[ 6942.965843][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6942.965843][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6942.965843][   T73]      ___sys_sendmsg+0xee/0x170
[ 6942.965843][   T73]      __sys_sendmsg+0xcd/0x170
[ 6942.965843][   T73]      do_syscall_64+0xc6/0x1e0
[ 6942.965843][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6942.965843][   T73] 
[ 6942.967782][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6942.968050][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6942.968050][   T73]      netdev_get_by_index+0x5e/0x80
[ 6942.968050][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6942.968050][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6942.968050][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6942.968050][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6942.968050][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6942.968050][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6942.968050][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6942.968050][   T73]      addrconf_dad_begin+0x310/0x670
[ 6942.968050][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6942.968050][   T73]      process_one_work+0x84d/0x18a0
[ 6942.968050][   T73]      worker_thread+0x587/0xd30
[ 6942.968050][   T73]      kthread+0x28a/0x350
[ 6942.968050][   T73]      ret_from_fork+0x31/0x70
[ 6942.968050][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6942.968050][   T73] 
[ 6942.970104][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6942.970104][   T73]      netdev_get_by_index+0x5e/0x80
[ 6942.970104][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6942.970104][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6942.970104][   T73]      ip6_route_add+0x1c/0x140
[ 6942.970104][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6942.970104][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6942.970104][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6942.970104][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6942.970104][   T73]      netlink_rcv_skb+0x130/0x360
[ 6942.970104][   T73]      netlink_unicast+0x449/0x710
[ 6942.970104][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6942.970104][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6942.970104][   T73]      ___sys_sendmsg+0xee/0x170
[ 6942.970104][   T73]      __sys_sendmsg+0xcd/0x170
[ 6942.970104][   T73]      do_syscall_64+0xc6/0x1e0
[ 6942.970104][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6942.970104][   T73] 
[ 6942.972250][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6942.972250][   T73]      netdev_get_by_index+0x5e/0x80
[ 6942.972250][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6942.972250][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6942.972250][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6942.972250][   T73]      ipv6_add_addr+0x411/0x2000
[ 6942.972250][   T73]      inet6_addr_add+0x30e/0xa40
[ 6942.972250][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6942.972250][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6942.972250][   T73]      netlink_rcv_skb+0x130/0x360
[ 6942.972250][   T73]      netlink_unicast+0x449/0x710
[ 6942.972250][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6942.972250][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6942.972250][   T73]      ___sys_sendmsg+0xee/0x170
[ 6942.972250][   T73]      __sys_sendmsg+0xcd/0x170
[ 6942.972250][   T73]      do_syscall_64+0xc6/0x1e0
[ 6942.972250][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6942.972250][   T73] 
[ 6942.974384][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6942.974384][   T73]      netdev_get_by_index+0x5e/0x80
[ 6942.974384][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6942.974384][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6942.974384][   T73]      ip6_route_add+0x1c/0x140
[ 6942.974384][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6942.974384][   T73]      addrconf_add_dev+0xe2/0x170
[ 6942.974384][   T73]      inet6_addr_add+0x12f/0xa40
[ 6942.974384][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6942.974384][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6942.974384][   T73]      netlink_rcv_skb+0x130/0x360
[ 6942.974384][   T73]      netlink_unicast+0x449/0x710
[ 6942.974384][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6942.974384][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6942.974384][   T73]      ___sys_sendmsg+0xee/0x170
[ 6942.974384][   T73]      __sys_sendmsg+0xcd/0x170
[ 6942.974384][   T73]      do_syscall_64+0xc6/0x1e0
[ 6942.974384][   T73] 
[ 6942.976479][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6942.976479][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6942.976479][   T73]      ipv6_find_idev+0x102/0x170
[ 6942.976479][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6942.976479][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6942.976479][   T73]      netlink_rcv_skb+0x130/0x360
[ 6942.976479][   T73]      netlink_unicast+0x449/0x710
[ 6942.976479][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6942.976479][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6942.976479][   T73]      ___sys_sendmsg+0xee/0x170
[ 6942.976479][   T73]      __sys_sendmsg+0xcd/0x170
[ 6942.976479][   T73]      do_syscall_64+0xc6/0x1e0
[ 6942.976479][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6942.976479][   T73] 
[ 6942.978083][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6942.978083][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6942.978083][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6942.978083][   T73]      ipv6_find_idev+0x102/0x170
[ 6942.978083][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6942.978083][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6942.978083][   T73]      netlink_rcv_skb+0x130/0x360
[ 6942.978083][   T73]      netlink_unicast+0x449/0x710
[ 6942.978083][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6942.978083][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6942.978083][   T73]      ___sys_sendmsg+0xee/0x170
[ 6942.978083][   T73]      __sys_sendmsg+0xcd/0x170
[ 6942.978083][   T73]      do_syscall_64+0xc6/0x1e0
[ 6942.978083][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6942.978083][   T73] 
[ 6953.215702][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6953.216115][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6953.216115][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6953.216115][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6953.216115][   T73]      fib6_nh_init+0xa22/0x1580
[ 6953.216115][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6953.216115][   T73]      ip6_route_add+0x1c/0x140
[ 6953.216115][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6953.216115][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6953.216115][   T73]      netlink_rcv_skb+0x130/0x360
[ 6953.216115][   T73]      netlink_unicast+0x449/0x710
[ 6953.216115][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6953.216115][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6953.216115][   T73]      ___sys_sendmsg+0xee/0x170
[ 6953.216115][   T73]      __sys_sendmsg+0xcd/0x170
[ 6953.216115][   T73]      do_syscall_64+0xc6/0x1e0
[ 6953.216115][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6953.216115][   T73] 
[ 6953.218008][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6953.218008][   T73]      dst_init+0x84/0x4a0
[ 6953.218008][   T73]      dst_alloc+0x97/0x150
[ 6953.218008][   T73]      ip6_dst_alloc+0x23/0x90
[ 6953.218008][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6953.218008][   T73]      ip6_pol_route+0x56f/0x840
[ 6953.218008][   T73]      fib6_rule_lookup+0x456/0x630
[ 6953.218008][   T73]      ip6_route_input+0x59c/0xa50
[ 6953.218008][   T73]      ipv6_rcv+0x397/0x810
[ 6953.218008][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6953.218008][   T73]      process_backlog+0x101/0x620
[ 6953.218008][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6953.218008][   T73]      net_rx_action+0x495/0xbe0
[ 6953.218008][   T73]      __do_softirq+0x1b5/0x7f6
[ 6953.218008][   T73] 
[ 6953.219645][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6953.219645][   T73]      netdev_get_by_index+0x5e/0x80
[ 6953.219645][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6953.219645][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6953.219645][   T73]      ip6_route_add+0x1c/0x140
[ 6953.219645][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6953.219645][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6953.219645][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6953.219645][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6953.219645][   T73]      netlink_rcv_skb+0x130/0x360
[ 6953.219645][   T73]      netlink_unicast+0x449/0x710
[ 6953.219645][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6953.219645][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6953.219645][   T73]      ___sys_sendmsg+0xee/0x170
[ 6953.219645][   T73]      __sys_sendmsg+0xcd/0x170
[ 6953.219645][   T73]      do_syscall_64+0xc6/0x1e0
[ 6953.219645][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6953.219645][   T73] 
[ 6953.221664][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6953.221664][   T73]      netdev_get_by_index+0x5e/0x80
[ 6953.221664][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6953.221664][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6953.221664][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6953.221664][   T73]      ipv6_add_addr+0x411/0x2000
[ 6953.221664][   T73]      inet6_addr_add+0x30e/0xa40
[ 6953.221664][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6953.221664][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6953.221664][   T73]      netlink_rcv_skb+0x130/0x360
[ 6953.221664][   T73]      netlink_unicast+0x449/0x710
[ 6953.221664][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6953.221664][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6953.221664][   T73]      ___sys_sendmsg+0xee/0x170
[ 6953.221664][   T73]      __sys_sendmsg+0xcd/0x170
[ 6953.221664][   T73]      do_syscall_64+0xc6/0x1e0
[ 6953.221664][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6953.221664][   T73] 
[ 6953.223684][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6953.223684][   T73]      netdev_get_by_index+0x5e/0x80
[ 6953.223684][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6953.223684][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6953.223684][   T73]      ip6_route_add+0x1c/0x140
[ 6953.223684][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6953.223684][   T73]      addrconf_add_dev+0xe2/0x170
[ 6953.223684][   T73]      inet6_addr_add+0x12f/0xa40
[ 6953.223684][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6953.223684][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6953.223684][   T73]      netlink_rcv_skb+0x130/0x360
[ 6953.223684][   T73]      netlink_unicast+0x449/0x710
[ 6953.223684][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6953.223684][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6953.223684][   T73]      ___sys_sendmsg+0xee/0x170
[ 6953.223684][   T73]      __sys_sendmsg+0xcd/0x170
[ 6953.223684][   T73]      do_syscall_64+0xc6/0x1e0
[ 6953.223684][   T73] 
[ 6953.225632][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6953.225632][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6953.225632][   T73]      ipv6_find_idev+0x102/0x170
[ 6953.225632][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6953.225632][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6953.225632][   T73]      netlink_rcv_skb+0x130/0x360
[ 6953.225632][   T73]      netlink_unicast+0x449/0x710
[ 6953.225632][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6953.225632][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6953.225632][   T73]      ___sys_sendmsg+0xee/0x170
[ 6953.225632][   T73]      __sys_sendmsg+0xcd/0x170
[ 6953.225632][   T73]      do_syscall_64+0xc6/0x1e0
[ 6953.225632][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6953.225632][   T73] 
[ 6953.227161][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6953.227161][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6953.227161][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6953.227161][   T73]      ipv6_find_idev+0x102/0x170
[ 6953.227161][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6953.227161][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6953.227161][   T73]      netlink_rcv_skb+0x130/0x360
[ 6953.227161][   T73]      netlink_unicast+0x449/0x710
[ 6953.227161][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6953.227161][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6953.227161][   T73]      ___sys_sendmsg+0xee/0x170
[ 6953.227161][   T73]      __sys_sendmsg+0xcd/0x170
[ 6953.227161][   T73]      do_syscall_64+0xc6/0x1e0
[ 6953.227161][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6953.227161][   T73] 
[ 6953.228837][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6953.229117][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6953.229117][   T73]      netdev_get_by_index+0x5e/0x80
[ 6953.229117][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6953.229117][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6953.229117][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6953.229117][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6953.229117][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6953.229117][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6953.229117][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6953.229117][   T73]      addrconf_dad_begin+0x310/0x670
[ 6953.229117][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6953.229117][   T73]      process_one_work+0x84d/0x18a0
[ 6953.229117][   T73]      worker_thread+0x587/0xd30
[ 6953.229117][   T73]      kthread+0x28a/0x350
[ 6953.229117][   T73]      ret_from_fork+0x31/0x70
[ 6953.229117][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6953.229117][   T73] 
[ 6953.231020][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6953.231020][   T73]      netdev_get_by_index+0x5e/0x80
[ 6953.231020][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6953.231020][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6953.231020][   T73]      ip6_route_add+0x1c/0x140
[ 6953.231020][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6953.231020][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6953.231020][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6953.231020][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6953.231020][   T73]      netlink_rcv_skb+0x130/0x360
[ 6953.231020][   T73]      netlink_unicast+0x449/0x710
[ 6953.231020][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6953.231020][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6953.231020][   T73]      ___sys_sendmsg+0xee/0x170
[ 6953.231020][   T73]      __sys_sendmsg+0xcd/0x170
[ 6953.231020][   T73]      do_syscall_64+0xc6/0x1e0
[ 6953.231020][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6953.231020][   T73] 
[ 6953.233023][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6953.233023][   T73]      netdev_get_by_index+0x5e/0x80
[ 6953.233023][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6953.233023][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6953.233023][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6953.233023][   T73]      ipv6_add_addr+0x411/0x2000
[ 6953.233023][   T73]      inet6_addr_add+0x30e/0xa40
[ 6953.233023][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6953.233023][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6953.233023][   T73]      netlink_rcv_skb+0x130/0x360
[ 6953.233023][   T73]      netlink_unicast+0x449/0x710
[ 6953.233023][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6953.233023][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6953.233023][   T73]      ___sys_sendmsg+0xee/0x170
[ 6953.233023][   T73]      __sys_sendmsg+0xcd/0x170
[ 6953.233023][   T73]      do_syscall_64+0xc6/0x1e0
[ 6953.233023][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6953.233023][   T73] 
[ 6953.235020][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6953.235020][   T73]      netdev_get_by_index+0x5e/0x80
[ 6953.235020][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6953.235020][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6953.235020][   T73]      ip6_route_add+0x1c/0x140
[ 6953.235020][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6953.235020][   T73]      addrconf_add_dev+0xe2/0x170
[ 6953.235020][   T73]      inet6_addr_add+0x12f/0xa40
[ 6953.235020][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6953.235020][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6953.235020][   T73]      netlink_rcv_skb+0x130/0x360
[ 6953.235020][   T73]      netlink_unicast+0x449/0x710
[ 6953.235020][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6953.235020][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6953.235020][   T73]      ___sys_sendmsg+0xee/0x170
[ 6953.235020][   T73]      __sys_sendmsg+0xcd/0x170
[ 6953.235020][   T73]      do_syscall_64+0xc6/0x1e0
[ 6953.235020][   T73] 
[ 6953.236985][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6953.236985][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6953.236985][   T73]      ipv6_find_idev+0x102/0x170
[ 6953.236985][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6953.236985][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6953.236985][   T73]      netlink_rcv_skb+0x130/0x360
[ 6953.236985][   T73]      netlink_unicast+0x449/0x710
[ 6953.236985][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6953.236985][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6953.236985][   T73]      ___sys_sendmsg+0xee/0x170
[ 6953.236985][   T73]      __sys_sendmsg+0xcd/0x170
[ 6953.236985][   T73]      do_syscall_64+0xc6/0x1e0
[ 6953.236985][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6953.236985][   T73] 
[ 6953.238530][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6953.238530][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6953.238530][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6953.238530][   T73]      ipv6_find_idev+0x102/0x170
[ 6953.238530][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6953.238530][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6953.238530][   T73]      netlink_rcv_skb+0x130/0x360
[ 6953.238530][   T73]      netlink_unicast+0x449/0x710
[ 6953.238530][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6953.238530][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6953.238530][   T73]      ___sys_sendmsg+0xee/0x170
[ 6953.238530][   T73]      __sys_sendmsg+0xcd/0x170
[ 6953.238530][   T73]      do_syscall_64+0xc6/0x1e0
[ 6953.238530][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6953.238530][   T73] 
[ 6953.240206][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6953.240494][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6953.240494][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6953.240494][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6953.240494][   T73]      fib6_nh_init+0xa22/0x1580
[ 6953.240494][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6953.240494][   T73]      ip6_route_add+0x1c/0x140
[ 6953.240494][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6953.240494][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6953.240494][   T73]      netlink_rcv_skb+0x130/0x360
[ 6953.240494][   T73]      netlink_unicast+0x449/0x710
[ 6953.240494][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6953.240494][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6953.240494][   T73]      ___sys_sendmsg+0xee/0x170
[ 6953.240494][   T73]      __sys_sendmsg+0xcd/0x170
[ 6953.240494][   T73]      do_syscall_64+0xc6/0x1e0
[ 6953.240494][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6953.240494][   T73] 
[ 6953.242588][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6953.242588][   T73]      dst_init+0x84/0x4a0
[ 6953.242588][   T73]      dst_alloc+0x97/0x150
[ 6953.242588][   T73]      ip6_dst_alloc+0x23/0x90
[ 6953.242588][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6953.242588][   T73]      ip6_pol_route+0x56f/0x840
[ 6953.242588][   T73]      fib6_rule_lookup+0x456/0x630
[ 6953.242588][   T73]      ip6_route_input+0x59c/0xa50
[ 6953.242588][   T73]      ipv6_rcv+0x397/0x810
[ 6953.242588][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6953.242588][   T73]      process_backlog+0x101/0x620
[ 6953.242588][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6953.242588][   T73]      net_rx_action+0x495/0xbe0
[ 6953.242588][   T73]      __do_softirq+0x1b5/0x7f6
[ 6953.242588][   T73] 
[ 6953.244481][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6953.244481][   T73]      netdev_get_by_index+0x5e/0x80
[ 6953.244481][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6953.244481][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6953.244481][   T73]      ip6_route_add+0x1c/0x140
[ 6953.244481][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6953.244481][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6953.244481][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6953.244481][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6953.244481][   T73]      netlink_rcv_skb+0x130/0x360
[ 6953.244481][   T73]      netlink_unicast+0x449/0x710
[ 6953.244481][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6953.244481][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6953.244481][   T73]      ___sys_sendmsg+0xee/0x170
[ 6953.244481][   T73]      __sys_sendmsg+0xcd/0x170
[ 6953.244481][   T73]      do_syscall_64+0xc6/0x1e0
[ 6953.244481][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6953.244481][   T73] 
[ 6953.246735][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6953.246735][   T73]      netdev_get_by_index+0x5e/0x80
[ 6953.246735][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6953.246735][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6953.246735][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6953.246735][   T73]      ipv6_add_addr+0x411/0x2000
[ 6953.246735][   T73]      inet6_addr_add+0x30e/0xa40
[ 6953.246735][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6953.246735][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6953.246735][   T73]      netlink_rcv_skb+0x130/0x360
[ 6953.246735][   T73]      netlink_unicast+0x449/0x710
[ 6953.246735][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6953.246735][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6953.246735][   T73]      ___sys_sendmsg+0xee/0x170
[ 6953.246735][   T73]      __sys_sendmsg+0xcd/0x170
[ 6953.246735][   T73]      do_syscall_64+0xc6/0x1e0
[ 6953.246735][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6953.246735][   T73] 
[ 6953.248918][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6953.248918][   T73]      netdev_get_by_index+0x5e/0x80
[ 6953.248918][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6953.248918][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6953.248918][   T73]      ip6_route_add+0x1c/0x140
[ 6953.248918][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6953.248918][   T73]      addrconf_add_dev+0xe2/0x170
[ 6953.248918][   T73]      inet6_addr_add+0x12f/0xa40
[ 6953.248918][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6953.248918][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6953.248918][   T73]      netlink_rcv_skb+0x130/0x360
[ 6953.248918][   T73]      netlink_unicast+0x449/0x710
[ 6953.248918][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6953.248918][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6953.248918][   T73]      ___sys_sendmsg+0xee/0x170
[ 6953.248918][   T73]      __sys_sendmsg+0xcd/0x170
[ 6953.248918][   T73]      do_syscall_64+0xc6/0x1e0
[ 6953.248918][   T73] 
[ 6953.251119][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6953.251119][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6953.251119][   T73]      ipv6_find_idev+0x102/0x170
[ 6953.251119][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6953.251119][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6953.251119][   T73]      netlink_rcv_skb+0x130/0x360
[ 6953.251119][   T73]      netlink_unicast+0x449/0x710
[ 6953.251119][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6953.251119][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6953.251119][   T73]      ___sys_sendmsg+0xee/0x170
[ 6953.251119][   T73]      __sys_sendmsg+0xcd/0x170
[ 6953.251119][   T73]      do_syscall_64+0xc6/0x1e0
[ 6953.251119][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6953.251119][   T73] 
[ 6953.252856][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6953.252856][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6953.252856][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6953.252856][   T73]      ipv6_find_idev+0x102/0x170
[ 6953.252856][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6953.252856][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6953.252856][   T73]      netlink_rcv_skb+0x130/0x360
[ 6953.252856][   T73]      netlink_unicast+0x449/0x710
[ 6953.252856][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6953.252856][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6953.252856][   T73]      ___sys_sendmsg+0xee/0x170
[ 6953.252856][   T73]      __sys_sendmsg+0xcd/0x170
[ 6953.252856][   T73]      do_syscall_64+0xc6/0x1e0
[ 6953.252856][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6953.252856][   T73] 
[ 6953.254847][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6953.255115][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6953.255115][   T73]      netdev_get_by_index+0x5e/0x80
[ 6953.255115][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6953.255115][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6953.255115][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6953.255115][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6953.255115][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6953.255115][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6953.255115][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6953.255115][   T73]      addrconf_dad_begin+0x310/0x670
[ 6953.255115][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6953.255115][   T73]      process_one_work+0x84d/0x18a0
[ 6953.255115][   T73]      worker_thread+0x587/0xd30
[ 6953.255115][   T73]      kthread+0x28a/0x350
[ 6953.255115][   T73]      ret_from_fork+0x31/0x70
[ 6953.255115][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6953.255115][   T73] 
[ 6953.257259][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6953.257259][   T73]      netdev_get_by_index+0x5e/0x80
[ 6953.257259][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6953.257259][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6953.257259][   T73]      ip6_route_add+0x1c/0x140
[ 6953.257259][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6953.257259][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6953.257259][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6953.257259][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6953.257259][   T73]      netlink_rcv_skb+0x130/0x360
[ 6953.257259][   T73]      netlink_unicast+0x449/0x710
[ 6953.257259][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6953.257259][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6953.257259][   T73]      ___sys_sendmsg+0xee/0x170
[ 6953.257259][   T73]      __sys_sendmsg+0xcd/0x170
[ 6953.257259][   T73]      do_syscall_64+0xc6/0x1e0
[ 6953.257259][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6953.257259][   T73] 
[ 6953.259426][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6953.259426][   T73]      netdev_get_by_index+0x5e/0x80
[ 6953.259426][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6953.259426][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6953.259426][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6953.259426][   T73]      ipv6_add_addr+0x411/0x2000
[ 6953.259426][   T73]      inet6_addr_add+0x30e/0xa40
[ 6953.259426][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6953.259426][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6953.259426][   T73]      netlink_rcv_skb+0x130/0x360
[ 6953.259426][   T73]      netlink_unicast+0x449/0x710
[ 6953.259426][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6953.259426][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6953.259426][   T73]      ___sys_sendmsg+0xee/0x170
[ 6953.259426][   T73]      __sys_sendmsg+0xcd/0x170
[ 6953.259426][   T73]      do_syscall_64+0xc6/0x1e0
[ 6953.259426][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6953.259426][   T73] 
[ 6953.261667][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6953.261667][   T73]      netdev_get_by_index+0x5e/0x80
[ 6953.261667][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6953.261667][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6953.261667][   T73]      ip6_route_add+0x1c/0x140
[ 6953.261667][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6953.261667][   T73]      addrconf_add_dev+0xe2/0x170
[ 6953.261667][   T73]      inet6_addr_add+0x12f/0xa40
[ 6953.261667][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6953.261667][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6953.261667][   T73]      netlink_rcv_skb+0x130/0x360
[ 6953.261667][   T73]      netlink_unicast+0x449/0x710
[ 6953.261667][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6953.261667][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6953.261667][   T73]      ___sys_sendmsg+0xee/0x170
[ 6953.261667][   T73]      __sys_sendmsg+0xcd/0x170
[ 6953.261667][   T73]      do_syscall_64+0xc6/0x1e0
[ 6953.261667][   T73] 
[ 6953.263955][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6953.263955][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6953.263955][   T73]      ipv6_find_idev+0x102/0x170
[ 6953.263955][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6953.263955][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6953.263955][   T73]      netlink_rcv_skb+0x130/0x360
[ 6953.263955][   T73]      netlink_unicast+0x449/0x710
[ 6953.263955][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6953.263955][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6953.263955][   T73]      ___sys_sendmsg+0xee/0x170
[ 6953.263955][   T73]      __sys_sendmsg+0xcd/0x170
[ 6953.263955][   T73]      do_syscall_64+0xc6/0x1e0
[ 6953.263955][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6953.263955][   T73] 
[ 6953.265665][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6953.265665][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6953.265665][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6953.265665][   T73]      ipv6_find_idev+0x102/0x170
[ 6953.265665][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6953.265665][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6953.265665][   T73]      netlink_rcv_skb+0x130/0x360
[ 6953.265665][   T73]      netlink_unicast+0x449/0x710
[ 6953.265665][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6953.265665][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6953.265665][   T73]      ___sys_sendmsg+0xee/0x170
[ 6953.265665][   T73]      __sys_sendmsg+0xcd/0x170
[ 6953.265665][   T73]      do_syscall_64+0xc6/0x1e0
[ 6953.265665][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6953.265665][   T73] 
[ 6963.359747][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6963.360128][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6963.360128][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6963.360128][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6963.360128][   T73]      fib6_nh_init+0xa22/0x1580
[ 6963.360128][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6963.360128][   T73]      ip6_route_add+0x1c/0x140
[ 6963.360128][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6963.360128][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6963.360128][   T73]      netlink_rcv_skb+0x130/0x360
[ 6963.360128][   T73]      netlink_unicast+0x449/0x710
[ 6963.360128][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6963.360128][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6963.360128][   T73]      ___sys_sendmsg+0xee/0x170
[ 6963.360128][   T73]      __sys_sendmsg+0xcd/0x170
[ 6963.360128][   T73]      do_syscall_64+0xc6/0x1e0
[ 6963.360128][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6963.360128][   T73] 
[ 6963.362048][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6963.362048][   T73]      dst_init+0x84/0x4a0
[ 6963.362048][   T73]      dst_alloc+0x97/0x150
[ 6963.362048][   T73]      ip6_dst_alloc+0x23/0x90
[ 6963.362048][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6963.362048][   T73]      ip6_pol_route+0x56f/0x840
[ 6963.362048][   T73]      fib6_rule_lookup+0x456/0x630
[ 6963.362048][   T73]      ip6_route_input+0x59c/0xa50
[ 6963.362048][   T73]      ipv6_rcv+0x397/0x810
[ 6963.362048][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6963.362048][   T73]      process_backlog+0x101/0x620
[ 6963.362048][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6963.362048][   T73]      net_rx_action+0x495/0xbe0
[ 6963.362048][   T73]      __do_softirq+0x1b5/0x7f6
[ 6963.362048][   T73] 
[ 6963.363713][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6963.363713][   T73]      netdev_get_by_index+0x5e/0x80
[ 6963.363713][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6963.363713][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6963.363713][   T73]      ip6_route_add+0x1c/0x140
[ 6963.363713][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6963.363713][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6963.363713][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6963.363713][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6963.363713][   T73]      netlink_rcv_skb+0x130/0x360
[ 6963.363713][   T73]      netlink_unicast+0x449/0x710
[ 6963.363713][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6963.363713][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6963.363713][   T73]      ___sys_sendmsg+0xee/0x170
[ 6963.363713][   T73]      __sys_sendmsg+0xcd/0x170
[ 6963.363713][   T73]      do_syscall_64+0xc6/0x1e0
[ 6963.363713][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6963.363713][   T73] 
[ 6963.365720][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6963.365720][   T73]      netdev_get_by_index+0x5e/0x80
[ 6963.365720][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6963.365720][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6963.365720][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6963.365720][   T73]      ipv6_add_addr+0x411/0x2000
[ 6963.365720][   T73]      inet6_addr_add+0x30e/0xa40
[ 6963.365720][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6963.365720][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6963.365720][   T73]      netlink_rcv_skb+0x130/0x360
[ 6963.365720][   T73]      netlink_unicast+0x449/0x710
[ 6963.365720][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6963.365720][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6963.365720][   T73]      ___sys_sendmsg+0xee/0x170
[ 6963.365720][   T73]      __sys_sendmsg+0xcd/0x170
[ 6963.365720][   T73]      do_syscall_64+0xc6/0x1e0
[ 6963.365720][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6963.365720][   T73] 
[ 6963.367728][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6963.367728][   T73]      netdev_get_by_index+0x5e/0x80
[ 6963.367728][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6963.367728][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6963.367728][   T73]      ip6_route_add+0x1c/0x140
[ 6963.367728][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6963.367728][   T73]      addrconf_add_dev+0xe2/0x170
[ 6963.367728][   T73]      inet6_addr_add+0x12f/0xa40
[ 6963.367728][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6963.367728][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6963.367728][   T73]      netlink_rcv_skb+0x130/0x360
[ 6963.367728][   T73]      netlink_unicast+0x449/0x710
[ 6963.367728][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6963.367728][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6963.367728][   T73]      ___sys_sendmsg+0xee/0x170
[ 6963.367728][   T73]      __sys_sendmsg+0xcd/0x170
[ 6963.367728][   T73]      do_syscall_64+0xc6/0x1e0
[ 6963.367728][   T73] 
[ 6963.369703][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6963.369703][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6963.369703][   T73]      ipv6_find_idev+0x102/0x170
[ 6963.369703][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6963.369703][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6963.369703][   T73]      netlink_rcv_skb+0x130/0x360
[ 6963.369703][   T73]      netlink_unicast+0x449/0x710
[ 6963.369703][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6963.369703][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6963.369703][   T73]      ___sys_sendmsg+0xee/0x170
[ 6963.369703][   T73]      __sys_sendmsg+0xcd/0x170
[ 6963.369703][   T73]      do_syscall_64+0xc6/0x1e0
[ 6963.369703][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6963.369703][   T73] 
[ 6963.371251][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6963.371251][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6963.371251][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6963.371251][   T73]      ipv6_find_idev+0x102/0x170
[ 6963.371251][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6963.371251][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6963.371251][   T73]      netlink_rcv_skb+0x130/0x360
[ 6963.371251][   T73]      netlink_unicast+0x449/0x710
[ 6963.371251][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6963.371251][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6963.371251][   T73]      ___sys_sendmsg+0xee/0x170
[ 6963.371251][   T73]      __sys_sendmsg+0xcd/0x170
[ 6963.371251][   T73]      do_syscall_64+0xc6/0x1e0
[ 6963.371251][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6963.371251][   T73] 
[ 6963.372952][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6963.373241][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6963.373241][   T73]      netdev_get_by_index+0x5e/0x80
[ 6963.373241][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6963.373241][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6963.373241][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6963.373241][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6963.373241][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6963.373241][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6963.373241][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6963.373241][   T73]      addrconf_dad_begin+0x310/0x670
[ 6963.373241][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6963.373241][   T73]      process_one_work+0x84d/0x18a0
[ 6963.373241][   T73]      worker_thread+0x587/0xd30
[ 6963.373241][   T73]      kthread+0x28a/0x350
[ 6963.373241][   T73]      ret_from_fork+0x31/0x70
[ 6963.373241][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6963.373241][   T73] 
[ 6963.375164][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6963.375164][   T73]      netdev_get_by_index+0x5e/0x80
[ 6963.375164][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6963.375164][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6963.375164][   T73]      ip6_route_add+0x1c/0x140
[ 6963.375164][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6963.375164][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6963.375164][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6963.375164][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6963.375164][   T73]      netlink_rcv_skb+0x130/0x360
[ 6963.375164][   T73]      netlink_unicast+0x449/0x710
[ 6963.375164][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6963.375164][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6963.375164][   T73]      ___sys_sendmsg+0xee/0x170
[ 6963.375164][   T73]      __sys_sendmsg+0xcd/0x170
[ 6963.375164][   T73]      do_syscall_64+0xc6/0x1e0
[ 6963.375164][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6963.375164][   T73] 
[ 6963.377168][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6963.377168][   T73]      netdev_get_by_index+0x5e/0x80
[ 6963.377168][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6963.377168][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6963.377168][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6963.377168][   T73]      ipv6_add_addr+0x411/0x2000
[ 6963.377168][   T73]      inet6_addr_add+0x30e/0xa40
[ 6963.377168][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6963.377168][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6963.377168][   T73]      netlink_rcv_skb+0x130/0x360
[ 6963.377168][   T73]      netlink_unicast+0x449/0x710
[ 6963.377168][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6963.377168][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6963.377168][   T73]      ___sys_sendmsg+0xee/0x170
[ 6963.377168][   T73]      __sys_sendmsg+0xcd/0x170
[ 6963.377168][   T73]      do_syscall_64+0xc6/0x1e0
[ 6963.377168][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6963.377168][   T73] 
[ 6963.379173][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6963.379173][   T73]      netdev_get_by_index+0x5e/0x80
[ 6963.379173][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6963.379173][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6963.379173][   T73]      ip6_route_add+0x1c/0x140
[ 6963.379173][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6963.379173][   T73]      addrconf_add_dev+0xe2/0x170
[ 6963.379173][   T73]      inet6_addr_add+0x12f/0xa40
[ 6963.379173][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6963.379173][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6963.379173][   T73]      netlink_rcv_skb+0x130/0x360
[ 6963.379173][   T73]      netlink_unicast+0x449/0x710
[ 6963.379173][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6963.379173][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6963.379173][   T73]      ___sys_sendmsg+0xee/0x170
[ 6963.379173][   T73]      __sys_sendmsg+0xcd/0x170
[ 6963.379173][   T73]      do_syscall_64+0xc6/0x1e0
[ 6963.379173][   T73] 
[ 6963.381677][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6963.381677][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6963.381677][   T73]      ipv6_find_idev+0x102/0x170
[ 6963.381677][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6963.381677][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6963.381677][   T73]      netlink_rcv_skb+0x130/0x360
[ 6963.381677][   T73]      netlink_unicast+0x449/0x710
[ 6963.381677][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6963.381677][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6963.381677][   T73]      ___sys_sendmsg+0xee/0x170
[ 6963.381677][   T73]      __sys_sendmsg+0xcd/0x170
[ 6963.381677][   T73]      do_syscall_64+0xc6/0x1e0
[ 6963.381677][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6963.381677][   T73] 
[ 6963.383222][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6963.383222][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6963.383222][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6963.383222][   T73]      ipv6_find_idev+0x102/0x170
[ 6963.383222][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6963.383222][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6963.383222][   T73]      netlink_rcv_skb+0x130/0x360
[ 6963.383222][   T73]      netlink_unicast+0x449/0x710
[ 6963.383222][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6963.383222][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6963.383222][   T73]      ___sys_sendmsg+0xee/0x170
[ 6963.383222][   T73]      __sys_sendmsg+0xcd/0x170
[ 6963.383222][   T73]      do_syscall_64+0xc6/0x1e0
[ 6963.383222][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6963.383222][   T73] 
[ 6963.384891][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6963.385170][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6963.385170][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6963.385170][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6963.385170][   T73]      fib6_nh_init+0xa22/0x1580
[ 6963.385170][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6963.385170][   T73]      ip6_route_add+0x1c/0x140
[ 6963.385170][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6963.385170][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6963.385170][   T73]      netlink_rcv_skb+0x130/0x360
[ 6963.385170][   T73]      netlink_unicast+0x449/0x710
[ 6963.385170][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6963.385170][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6963.385170][   T73]      ___sys_sendmsg+0xee/0x170
[ 6963.385170][   T73]      __sys_sendmsg+0xcd/0x170
[ 6963.385170][   T73]      do_syscall_64+0xc6/0x1e0
[ 6963.385170][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6963.385170][   T73] 
[ 6963.387270][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6963.387270][   T73]      dst_init+0x84/0x4a0
[ 6963.387270][   T73]      dst_alloc+0x97/0x150
[ 6963.387270][   T73]      ip6_dst_alloc+0x23/0x90
[ 6963.387270][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6963.387270][   T73]      ip6_pol_route+0x56f/0x840
[ 6963.387270][   T73]      fib6_rule_lookup+0x456/0x630
[ 6963.387270][   T73]      ip6_route_input+0x59c/0xa50
[ 6963.387270][   T73]      ipv6_rcv+0x397/0x810
[ 6963.387270][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6963.387270][   T73]      process_backlog+0x101/0x620
[ 6963.387270][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6963.387270][   T73]      net_rx_action+0x495/0xbe0
[ 6963.387270][   T73]      __do_softirq+0x1b5/0x7f6
[ 6963.387270][   T73] 
[ 6963.389074][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6963.389074][   T73]      netdev_get_by_index+0x5e/0x80
[ 6963.389074][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6963.389074][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6963.389074][   T73]      ip6_route_add+0x1c/0x140
[ 6963.389074][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6963.389074][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6963.389074][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6963.389074][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6963.389074][   T73]      netlink_rcv_skb+0x130/0x360
[ 6963.389074][   T73]      netlink_unicast+0x449/0x710
[ 6963.389074][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6963.389074][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6963.389074][   T73]      ___sys_sendmsg+0xee/0x170
[ 6963.389074][   T73]      __sys_sendmsg+0xcd/0x170
[ 6963.389074][   T73]      do_syscall_64+0xc6/0x1e0
[ 6963.389074][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6963.389074][   T73] 
[ 6963.391295][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6963.391295][   T73]      netdev_get_by_index+0x5e/0x80
[ 6963.391295][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6963.391295][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6963.391295][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6963.391295][   T73]      ipv6_add_addr+0x411/0x2000
[ 6963.391295][   T73]      inet6_addr_add+0x30e/0xa40
[ 6963.391295][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6963.391295][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6963.391295][   T73]      netlink_rcv_skb+0x130/0x360
[ 6963.391295][   T73]      netlink_unicast+0x449/0x710
[ 6963.391295][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6963.391295][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6963.391295][   T73]      ___sys_sendmsg+0xee/0x170
[ 6963.391295][   T73]      __sys_sendmsg+0xcd/0x170
[ 6963.391295][   T73]      do_syscall_64+0xc6/0x1e0
[ 6963.391295][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6963.391295][   T73] 
[ 6963.393579][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6963.393579][   T73]      netdev_get_by_index+0x5e/0x80
[ 6963.393579][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6963.393579][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6963.393579][   T73]      ip6_route_add+0x1c/0x140
[ 6963.393579][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6963.393579][   T73]      addrconf_add_dev+0xe2/0x170
[ 6963.393579][   T73]      inet6_addr_add+0x12f/0xa40
[ 6963.393579][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6963.393579][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6963.393579][   T73]      netlink_rcv_skb+0x130/0x360
[ 6963.393579][   T73]      netlink_unicast+0x449/0x710
[ 6963.393579][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6963.393579][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6963.393579][   T73]      ___sys_sendmsg+0xee/0x170
[ 6963.393579][   T73]      __sys_sendmsg+0xcd/0x170
[ 6963.393579][   T73]      do_syscall_64+0xc6/0x1e0
[ 6963.393579][   T73] 
[ 6963.395649][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6963.395649][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6963.395649][   T73]      ipv6_find_idev+0x102/0x170
[ 6963.395649][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6963.395649][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6963.395649][   T73]      netlink_rcv_skb+0x130/0x360
[ 6963.395649][   T73]      netlink_unicast+0x449/0x710
[ 6963.395649][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6963.395649][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6963.395649][   T73]      ___sys_sendmsg+0xee/0x170
[ 6963.395649][   T73]      __sys_sendmsg+0xcd/0x170
[ 6963.395649][   T73]      do_syscall_64+0xc6/0x1e0
[ 6963.395649][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6963.395649][   T73] 
[ 6963.397351][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6963.397351][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6963.397351][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6963.397351][   T73]      ipv6_find_idev+0x102/0x170
[ 6963.397351][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6963.397351][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6963.397351][   T73]      netlink_rcv_skb+0x130/0x360
[ 6963.397351][   T73]      netlink_unicast+0x449/0x710
[ 6963.397351][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6963.397351][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6963.397351][   T73]      ___sys_sendmsg+0xee/0x170
[ 6963.397351][   T73]      __sys_sendmsg+0xcd/0x170
[ 6963.397351][   T73]      do_syscall_64+0xc6/0x1e0
[ 6963.397351][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6963.397351][   T73] 
[ 6963.399257][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6963.399525][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6963.399525][   T73]      netdev_get_by_index+0x5e/0x80
[ 6963.399525][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6963.399525][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6963.399525][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6963.399525][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6963.399525][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6963.399525][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6963.399525][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6963.399525][   T73]      addrconf_dad_begin+0x310/0x670
[ 6963.399525][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6963.399525][   T73]      process_one_work+0x84d/0x18a0
[ 6963.399525][   T73]      worker_thread+0x587/0xd30
[ 6963.399525][   T73]      kthread+0x28a/0x350
[ 6963.399525][   T73]      ret_from_fork+0x31/0x70
[ 6963.399525][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6963.399525][   T73] 
[ 6963.402363][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6963.402363][   T73]      netdev_get_by_index+0x5e/0x80
[ 6963.402363][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6963.402363][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6963.402363][   T73]      ip6_route_add+0x1c/0x140
[ 6963.402363][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6963.402363][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6963.402363][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6963.402363][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6963.402363][   T73]      netlink_rcv_skb+0x130/0x360
[ 6963.402363][   T73]      netlink_unicast+0x449/0x710
[ 6963.402363][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6963.402363][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6963.402363][   T73]      ___sys_sendmsg+0xee/0x170
[ 6963.402363][   T73]      __sys_sendmsg+0xcd/0x170
[ 6963.402363][   T73]      do_syscall_64+0xc6/0x1e0
[ 6963.402363][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6963.402363][   T73] 
[ 6963.404619][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6963.404619][   T73]      netdev_get_by_index+0x5e/0x80
[ 6963.404619][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6963.404619][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6963.404619][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6963.404619][   T73]      ipv6_add_addr+0x411/0x2000
[ 6963.404619][   T73]      inet6_addr_add+0x30e/0xa40
[ 6963.404619][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6963.404619][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6963.404619][   T73]      netlink_rcv_skb+0x130/0x360
[ 6963.404619][   T73]      netlink_unicast+0x449/0x710
[ 6963.404619][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6963.404619][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6963.404619][   T73]      ___sys_sendmsg+0xee/0x170
[ 6963.404619][   T73]      __sys_sendmsg+0xcd/0x170
[ 6963.404619][   T73]      do_syscall_64+0xc6/0x1e0
[ 6963.404619][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6963.404619][   T73] 
[ 6963.406870][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6963.406870][   T73]      netdev_get_by_index+0x5e/0x80
[ 6963.406870][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6963.406870][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6963.406870][   T73]      ip6_route_add+0x1c/0x140
[ 6963.406870][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6963.406870][   T73]      addrconf_add_dev+0xe2/0x170
[ 6963.406870][   T73]      inet6_addr_add+0x12f/0xa40
[ 6963.406870][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6963.406870][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6963.406870][   T73]      netlink_rcv_skb+0x130/0x360
[ 6963.406870][   T73]      netlink_unicast+0x449/0x710
[ 6963.406870][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6963.406870][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6963.406870][   T73]      ___sys_sendmsg+0xee/0x170
[ 6963.406870][   T73]      __sys_sendmsg+0xcd/0x170
[ 6963.406870][   T73]      do_syscall_64+0xc6/0x1e0
[ 6963.406870][   T73] 
[ 6963.409072][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6963.409072][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6963.409072][   T73]      ipv6_find_idev+0x102/0x170
[ 6963.409072][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6963.409072][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6963.409072][   T73]      netlink_rcv_skb+0x130/0x360
[ 6963.409072][   T73]      netlink_unicast+0x449/0x710
[ 6963.409072][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6963.409072][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6963.409072][   T73]      ___sys_sendmsg+0xee/0x170
[ 6963.409072][   T73]      __sys_sendmsg+0xcd/0x170
[ 6963.409072][   T73]      do_syscall_64+0xc6/0x1e0
[ 6963.409072][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6963.409072][   T73] 
[ 6963.410778][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6963.410778][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6963.410778][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6963.410778][   T73]      ipv6_find_idev+0x102/0x170
[ 6963.410778][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6963.410778][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6963.410778][   T73]      netlink_rcv_skb+0x130/0x360
[ 6963.410778][   T73]      netlink_unicast+0x449/0x710
[ 6963.410778][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6963.410778][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6963.410778][   T73]      ___sys_sendmsg+0xee/0x170
[ 6963.410778][   T73]      __sys_sendmsg+0xcd/0x170
[ 6963.410778][   T73]      do_syscall_64+0xc6/0x1e0
[ 6963.410778][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6963.410778][   T73] 
[ 6973.447746][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6973.448221][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6973.448221][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6973.448221][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6973.448221][   T73]      fib6_nh_init+0xa22/0x1580
[ 6973.448221][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6973.448221][   T73]      ip6_route_add+0x1c/0x140
[ 6973.448221][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6973.448221][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6973.448221][   T73]      netlink_rcv_skb+0x130/0x360
[ 6973.448221][   T73]      netlink_unicast+0x449/0x710
[ 6973.448221][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6973.448221][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6973.448221][   T73]      ___sys_sendmsg+0xee/0x170
[ 6973.448221][   T73]      __sys_sendmsg+0xcd/0x170
[ 6973.448221][   T73]      do_syscall_64+0xc6/0x1e0
[ 6973.448221][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6973.448221][   T73] 
[ 6973.450131][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6973.450131][   T73]      dst_init+0x84/0x4a0
[ 6973.450131][   T73]      dst_alloc+0x97/0x150
[ 6973.450131][   T73]      ip6_dst_alloc+0x23/0x90
[ 6973.450131][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6973.450131][   T73]      ip6_pol_route+0x56f/0x840
[ 6973.450131][   T73]      fib6_rule_lookup+0x456/0x630
[ 6973.450131][   T73]      ip6_route_input+0x59c/0xa50
[ 6973.450131][   T73]      ipv6_rcv+0x397/0x810
[ 6973.450131][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6973.450131][   T73]      process_backlog+0x101/0x620
[ 6973.450131][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6973.450131][   T73]      net_rx_action+0x495/0xbe0
[ 6973.450131][   T73]      __do_softirq+0x1b5/0x7f6
[ 6973.450131][   T73] 
[ 6973.451772][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6973.451772][   T73]      netdev_get_by_index+0x5e/0x80
[ 6973.451772][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6973.451772][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6973.451772][   T73]      ip6_route_add+0x1c/0x140
[ 6973.451772][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6973.451772][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6973.451772][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6973.451772][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6973.451772][   T73]      netlink_rcv_skb+0x130/0x360
[ 6973.451772][   T73]      netlink_unicast+0x449/0x710
[ 6973.451772][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6973.451772][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6973.451772][   T73]      ___sys_sendmsg+0xee/0x170
[ 6973.451772][   T73]      __sys_sendmsg+0xcd/0x170
[ 6973.451772][   T73]      do_syscall_64+0xc6/0x1e0
[ 6973.451772][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6973.451772][   T73] 
[ 6973.453779][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6973.453779][   T73]      netdev_get_by_index+0x5e/0x80
[ 6973.453779][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6973.453779][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6973.453779][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6973.453779][   T73]      ipv6_add_addr+0x411/0x2000
[ 6973.453779][   T73]      inet6_addr_add+0x30e/0xa40
[ 6973.453779][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6973.453779][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6973.453779][   T73]      netlink_rcv_skb+0x130/0x360
[ 6973.453779][   T73]      netlink_unicast+0x449/0x710
[ 6973.453779][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6973.453779][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6973.453779][   T73]      ___sys_sendmsg+0xee/0x170
[ 6973.453779][   T73]      __sys_sendmsg+0xcd/0x170
[ 6973.453779][   T73]      do_syscall_64+0xc6/0x1e0
[ 6973.453779][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6973.453779][   T73] 
[ 6973.455760][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6973.455760][   T73]      netdev_get_by_index+0x5e/0x80
[ 6973.455760][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6973.455760][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6973.455760][   T73]      ip6_route_add+0x1c/0x140
[ 6973.455760][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6973.455760][   T73]      addrconf_add_dev+0xe2/0x170
[ 6973.455760][   T73]      inet6_addr_add+0x12f/0xa40
[ 6973.455760][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6973.455760][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6973.455760][   T73]      netlink_rcv_skb+0x130/0x360
[ 6973.455760][   T73]      netlink_unicast+0x449/0x710
[ 6973.455760][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6973.455760][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6973.455760][   T73]      ___sys_sendmsg+0xee/0x170
[ 6973.455760][   T73]      __sys_sendmsg+0xcd/0x170
[ 6973.455760][   T73]      do_syscall_64+0xc6/0x1e0
[ 6973.455760][   T73] 
[ 6973.457709][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6973.457709][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6973.457709][   T73]      ipv6_find_idev+0x102/0x170
[ 6973.457709][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6973.457709][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6973.457709][   T73]      netlink_rcv_skb+0x130/0x360
[ 6973.457709][   T73]      netlink_unicast+0x449/0x710
[ 6973.457709][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6973.457709][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6973.457709][   T73]      ___sys_sendmsg+0xee/0x170
[ 6973.457709][   T73]      __sys_sendmsg+0xcd/0x170
[ 6973.457709][   T73]      do_syscall_64+0xc6/0x1e0
[ 6973.457709][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6973.457709][   T73] 
[ 6973.459232][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6973.459232][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6973.459232][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6973.459232][   T73]      ipv6_find_idev+0x102/0x170
[ 6973.459232][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6973.459232][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6973.459232][   T73]      netlink_rcv_skb+0x130/0x360
[ 6973.459232][   T73]      netlink_unicast+0x449/0x710
[ 6973.459232][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6973.459232][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6973.459232][   T73]      ___sys_sendmsg+0xee/0x170
[ 6973.459232][   T73]      __sys_sendmsg+0xcd/0x170
[ 6973.459232][   T73]      do_syscall_64+0xc6/0x1e0
[ 6973.459232][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6973.459232][   T73] 
[ 6973.460912][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6973.461184][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6973.461184][   T73]      netdev_get_by_index+0x5e/0x80
[ 6973.461184][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6973.461184][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6973.461184][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6973.461184][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6973.461184][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6973.461184][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6973.461184][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6973.461184][   T73]      addrconf_dad_begin+0x310/0x670
[ 6973.461184][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6973.461184][   T73]      process_one_work+0x84d/0x18a0
[ 6973.461184][   T73]      worker_thread+0x587/0xd30
[ 6973.461184][   T73]      kthread+0x28a/0x350
[ 6973.461184][   T73]      ret_from_fork+0x31/0x70
[ 6973.461184][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6973.461184][   T73] 
[ 6973.463100][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6973.463100][   T73]      netdev_get_by_index+0x5e/0x80
[ 6973.463100][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6973.463100][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6973.463100][   T73]      ip6_route_add+0x1c/0x140
[ 6973.463100][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6973.463100][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6973.463100][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6973.463100][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6973.463100][   T73]      netlink_rcv_skb+0x130/0x360
[ 6973.463100][   T73]      netlink_unicast+0x449/0x710
[ 6973.463100][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6973.463100][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6973.463100][   T73]      ___sys_sendmsg+0xee/0x170
[ 6973.463100][   T73]      __sys_sendmsg+0xcd/0x170
[ 6973.463100][   T73]      do_syscall_64+0xc6/0x1e0
[ 6973.463100][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6973.463100][   T73] 
[ 6973.465076][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6973.465076][   T73]      netdev_get_by_index+0x5e/0x80
[ 6973.465076][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6973.465076][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6973.465076][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6973.465076][   T73]      ipv6_add_addr+0x411/0x2000
[ 6973.465076][   T73]      inet6_addr_add+0x30e/0xa40
[ 6973.465076][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6973.465076][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6973.465076][   T73]      netlink_rcv_skb+0x130/0x360
[ 6973.465076][   T73]      netlink_unicast+0x449/0x710
[ 6973.465076][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6973.465076][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6973.465076][   T73]      ___sys_sendmsg+0xee/0x170
[ 6973.465076][   T73]      __sys_sendmsg+0xcd/0x170
[ 6973.465076][   T73]      do_syscall_64+0xc6/0x1e0
[ 6973.465076][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6973.465076][   T73] 
[ 6973.467059][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6973.467059][   T73]      netdev_get_by_index+0x5e/0x80
[ 6973.467059][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6973.467059][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6973.467059][   T73]      ip6_route_add+0x1c/0x140
[ 6973.467059][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6973.467059][   T73]      addrconf_add_dev+0xe2/0x170
[ 6973.467059][   T73]      inet6_addr_add+0x12f/0xa40
[ 6973.467059][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6973.467059][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6973.467059][   T73]      netlink_rcv_skb+0x130/0x360
[ 6973.467059][   T73]      netlink_unicast+0x449/0x710
[ 6973.467059][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6973.467059][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6973.467059][   T73]      ___sys_sendmsg+0xee/0x170
[ 6973.467059][   T73]      __sys_sendmsg+0xcd/0x170
[ 6973.467059][   T73]      do_syscall_64+0xc6/0x1e0
[ 6973.467059][   T73] 
[ 6973.469010][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6973.469010][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6973.469010][   T73]      ipv6_find_idev+0x102/0x170
[ 6973.469010][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6973.469010][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6973.469010][   T73]      netlink_rcv_skb+0x130/0x360
[ 6973.469010][   T73]      netlink_unicast+0x449/0x710
[ 6973.469010][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6973.469010][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6973.469010][   T73]      ___sys_sendmsg+0xee/0x170
[ 6973.469010][   T73]      __sys_sendmsg+0xcd/0x170
[ 6973.469010][   T73]      do_syscall_64+0xc6/0x1e0
[ 6973.469010][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6973.469010][   T73] 
[ 6973.470556][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6973.470556][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6973.470556][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6973.470556][   T73]      ipv6_find_idev+0x102/0x170
[ 6973.470556][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6973.470556][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6973.470556][   T73]      netlink_rcv_skb+0x130/0x360
[ 6973.470556][   T73]      netlink_unicast+0x449/0x710
[ 6973.470556][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6973.470556][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6973.470556][   T73]      ___sys_sendmsg+0xee/0x170
[ 6973.470556][   T73]      __sys_sendmsg+0xcd/0x170
[ 6973.470556][   T73]      do_syscall_64+0xc6/0x1e0
[ 6973.470556][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6973.470556][   T73] 
[ 6973.472272][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6973.472544][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6973.472544][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6973.472544][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6973.472544][   T73]      fib6_nh_init+0xa22/0x1580
[ 6973.472544][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6973.472544][   T73]      ip6_route_add+0x1c/0x140
[ 6973.472544][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6973.472544][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6973.472544][   T73]      netlink_rcv_skb+0x130/0x360
[ 6973.472544][   T73]      netlink_unicast+0x449/0x710
[ 6973.472544][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6973.472544][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6973.472544][   T73]      ___sys_sendmsg+0xee/0x170
[ 6973.472544][   T73]      __sys_sendmsg+0xcd/0x170
[ 6973.472544][   T73]      do_syscall_64+0xc6/0x1e0
[ 6973.472544][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6973.472544][   T73] 
[ 6973.474606][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6973.474606][   T73]      dst_init+0x84/0x4a0
[ 6973.474606][   T73]      dst_alloc+0x97/0x150
[ 6973.474606][   T73]      ip6_dst_alloc+0x23/0x90
[ 6973.474606][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6973.474606][   T73]      ip6_pol_route+0x56f/0x840
[ 6973.474606][   T73]      fib6_rule_lookup+0x456/0x630
[ 6973.474606][   T73]      ip6_route_input+0x59c/0xa50
[ 6973.474606][   T73]      ipv6_rcv+0x397/0x810
[ 6973.474606][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6973.474606][   T73]      process_backlog+0x101/0x620
[ 6973.474606][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6973.474606][   T73]      net_rx_action+0x495/0xbe0
[ 6973.474606][   T73]      __do_softirq+0x1b5/0x7f6
[ 6973.474606][   T73] 
[ 6973.476415][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6973.476415][   T73]      netdev_get_by_index+0x5e/0x80
[ 6973.476415][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6973.476415][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6973.476415][   T73]      ip6_route_add+0x1c/0x140
[ 6973.476415][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6973.476415][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6973.476415][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6973.476415][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6973.476415][   T73]      netlink_rcv_skb+0x130/0x360
[ 6973.476415][   T73]      netlink_unicast+0x449/0x710
[ 6973.476415][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6973.476415][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6973.476415][   T73]      ___sys_sendmsg+0xee/0x170
[ 6973.476415][   T73]      __sys_sendmsg+0xcd/0x170
[ 6973.476415][   T73]      do_syscall_64+0xc6/0x1e0
[ 6973.476415][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6973.476415][   T73] 
[ 6973.478719][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6973.478719][   T73]      netdev_get_by_index+0x5e/0x80
[ 6973.478719][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6973.478719][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6973.478719][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6973.478719][   T73]      ipv6_add_addr+0x411/0x2000
[ 6973.478719][   T73]      inet6_addr_add+0x30e/0xa40
[ 6973.478719][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6973.478719][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6973.478719][   T73]      netlink_rcv_skb+0x130/0x360
[ 6973.478719][   T73]      netlink_unicast+0x449/0x710
[ 6973.478719][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6973.478719][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6973.478719][   T73]      ___sys_sendmsg+0xee/0x170
[ 6973.478719][   T73]      __sys_sendmsg+0xcd/0x170
[ 6973.478719][   T73]      do_syscall_64+0xc6/0x1e0
[ 6973.478719][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6973.478719][   T73] 
[ 6973.480951][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6973.480951][   T73]      netdev_get_by_index+0x5e/0x80
[ 6973.480951][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6973.480951][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6973.480951][   T73]      ip6_route_add+0x1c/0x140
[ 6973.480951][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6973.480951][   T73]      addrconf_add_dev+0xe2/0x170
[ 6973.480951][   T73]      inet6_addr_add+0x12f/0xa40
[ 6973.480951][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6973.480951][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6973.480951][   T73]      netlink_rcv_skb+0x130/0x360
[ 6973.480951][   T73]      netlink_unicast+0x449/0x710
[ 6973.480951][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6973.480951][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6973.480951][   T73]      ___sys_sendmsg+0xee/0x170
[ 6973.480951][   T73]      __sys_sendmsg+0xcd/0x170
[ 6973.480951][   T73]      do_syscall_64+0xc6/0x1e0
[ 6973.480951][   T73] 
[ 6973.483093][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6973.483093][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6973.483093][   T73]      ipv6_find_idev+0x102/0x170
[ 6973.483093][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6973.483093][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6973.483093][   T73]      netlink_rcv_skb+0x130/0x360
[ 6973.483093][   T73]      netlink_unicast+0x449/0x710
[ 6973.483093][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6973.483093][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6973.483093][   T73]      ___sys_sendmsg+0xee/0x170
[ 6973.483093][   T73]      __sys_sendmsg+0xcd/0x170
[ 6973.483093][   T73]      do_syscall_64+0xc6/0x1e0
[ 6973.483093][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6973.483093][   T73] 
[ 6973.484806][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6973.484806][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6973.484806][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6973.484806][   T73]      ipv6_find_idev+0x102/0x170
[ 6973.484806][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6973.484806][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6973.484806][   T73]      netlink_rcv_skb+0x130/0x360
[ 6973.484806][   T73]      netlink_unicast+0x449/0x710
[ 6973.484806][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6973.484806][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6973.484806][   T73]      ___sys_sendmsg+0xee/0x170
[ 6973.484806][   T73]      __sys_sendmsg+0xcd/0x170
[ 6973.484806][   T73]      do_syscall_64+0xc6/0x1e0
[ 6973.484806][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6973.484806][   T73] 
[ 6973.486775][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6973.487054][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6973.487054][   T73]      netdev_get_by_index+0x5e/0x80
[ 6973.487054][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6973.487054][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6973.487054][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6973.487054][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6973.487054][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6973.487054][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6973.487054][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6973.487054][   T73]      addrconf_dad_begin+0x310/0x670
[ 6973.487054][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6973.487054][   T73]      process_one_work+0x84d/0x18a0
[ 6973.487054][   T73]      worker_thread+0x587/0xd30
[ 6973.487054][   T73]      kthread+0x28a/0x350
[ 6973.487054][   T73]      ret_from_fork+0x31/0x70
[ 6973.487054][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6973.487054][   T73] 
[ 6973.489192][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6973.489192][   T73]      netdev_get_by_index+0x5e/0x80
[ 6973.489192][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6973.489192][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6973.489192][   T73]      ip6_route_add+0x1c/0x140
[ 6973.489192][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6973.489192][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6973.489192][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6973.489192][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6973.489192][   T73]      netlink_rcv_skb+0x130/0x360
[ 6973.489192][   T73]      netlink_unicast+0x449/0x710
[ 6973.489192][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6973.489192][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6973.489192][   T73]      ___sys_sendmsg+0xee/0x170
[ 6973.489192][   T73]      __sys_sendmsg+0xcd/0x170
[ 6973.489192][   T73]      do_syscall_64+0xc6/0x1e0
[ 6973.489192][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6973.489192][   T73] 
[ 6973.491370][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6973.491370][   T73]      netdev_get_by_index+0x5e/0x80
[ 6973.491370][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6973.491370][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6973.491370][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6973.491370][   T73]      ipv6_add_addr+0x411/0x2000
[ 6973.491370][   T73]      inet6_addr_add+0x30e/0xa40
[ 6973.491370][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6973.491370][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6973.491370][   T73]      netlink_rcv_skb+0x130/0x360
[ 6973.491370][   T73]      netlink_unicast+0x449/0x710
[ 6973.491370][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6973.491370][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6973.491370][   T73]      ___sys_sendmsg+0xee/0x170
[ 6973.491370][   T73]      __sys_sendmsg+0xcd/0x170
[ 6973.491370][   T73]      do_syscall_64+0xc6/0x1e0
[ 6973.491370][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6973.491370][   T73] 
[ 6973.493601][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6973.493601][   T73]      netdev_get_by_index+0x5e/0x80
[ 6973.493601][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6973.493601][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6973.493601][   T73]      ip6_route_add+0x1c/0x140
[ 6973.493601][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6973.493601][   T73]      addrconf_add_dev+0xe2/0x170
[ 6973.493601][   T73]      inet6_addr_add+0x12f/0xa40
[ 6973.493601][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6973.493601][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6973.493601][   T73]      netlink_rcv_skb+0x130/0x360
[ 6973.493601][   T73]      netlink_unicast+0x449/0x710
[ 6973.493601][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6973.493601][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6973.493601][   T73]      ___sys_sendmsg+0xee/0x170
[ 6973.493601][   T73]      __sys_sendmsg+0xcd/0x170
[ 6973.493601][   T73]      do_syscall_64+0xc6/0x1e0
[ 6973.493601][   T73] 
[ 6973.495864][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6973.495864][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6973.495864][   T73]      ipv6_find_idev+0x102/0x170
[ 6973.495864][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6973.495864][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6973.495864][   T73]      netlink_rcv_skb+0x130/0x360
[ 6973.495864][   T73]      netlink_unicast+0x449/0x710
[ 6973.495864][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6973.495864][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6973.495864][   T73]      ___sys_sendmsg+0xee/0x170
[ 6973.495864][   T73]      __sys_sendmsg+0xcd/0x170
[ 6973.495864][   T73]      do_syscall_64+0xc6/0x1e0
[ 6973.495864][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6973.495864][   T73] 
[ 6973.497578][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6973.497578][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6973.497578][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6973.497578][   T73]      ipv6_find_idev+0x102/0x170
[ 6973.497578][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6973.497578][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6973.497578][   T73]      netlink_rcv_skb+0x130/0x360
[ 6973.497578][   T73]      netlink_unicast+0x449/0x710
[ 6973.497578][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6973.497578][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6973.497578][   T73]      ___sys_sendmsg+0xee/0x170
[ 6973.497578][   T73]      __sys_sendmsg+0xcd/0x170
[ 6973.497578][   T73]      do_syscall_64+0xc6/0x1e0
[ 6973.497578][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6973.497578][   T73] 
[ 6983.735765][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6983.736233][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6983.736233][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6983.736233][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6983.736233][   T73]      fib6_nh_init+0xa22/0x1580
[ 6983.736233][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6983.736233][   T73]      ip6_route_add+0x1c/0x140
[ 6983.736233][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6983.736233][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6983.736233][   T73]      netlink_rcv_skb+0x130/0x360
[ 6983.736233][   T73]      netlink_unicast+0x449/0x710
[ 6983.736233][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6983.736233][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6983.736233][   T73]      ___sys_sendmsg+0xee/0x170
[ 6983.736233][   T73]      __sys_sendmsg+0xcd/0x170
[ 6983.736233][   T73]      do_syscall_64+0xc6/0x1e0
[ 6983.736233][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6983.736233][   T73] 
[ 6983.738128][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6983.738128][   T73]      dst_init+0x84/0x4a0
[ 6983.738128][   T73]      dst_alloc+0x97/0x150
[ 6983.738128][   T73]      ip6_dst_alloc+0x23/0x90
[ 6983.738128][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6983.738128][   T73]      ip6_pol_route+0x56f/0x840
[ 6983.738128][   T73]      fib6_rule_lookup+0x456/0x630
[ 6983.738128][   T73]      ip6_route_input+0x59c/0xa50
[ 6983.738128][   T73]      ipv6_rcv+0x397/0x810
[ 6983.738128][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6983.738128][   T73]      process_backlog+0x101/0x620
[ 6983.738128][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6983.738128][   T73]      net_rx_action+0x495/0xbe0
[ 6983.738128][   T73]      __do_softirq+0x1b5/0x7f6
[ 6983.738128][   T73] 
[ 6983.739803][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6983.739803][   T73]      netdev_get_by_index+0x5e/0x80
[ 6983.739803][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6983.739803][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6983.739803][   T73]      ip6_route_add+0x1c/0x140
[ 6983.739803][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6983.739803][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6983.739803][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6983.739803][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6983.739803][   T73]      netlink_rcv_skb+0x130/0x360
[ 6983.739803][   T73]      netlink_unicast+0x449/0x710
[ 6983.739803][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6983.739803][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6983.739803][   T73]      ___sys_sendmsg+0xee/0x170
[ 6983.739803][   T73]      __sys_sendmsg+0xcd/0x170
[ 6983.739803][   T73]      do_syscall_64+0xc6/0x1e0
[ 6983.739803][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6983.739803][   T73] 
[ 6983.741823][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6983.741823][   T73]      netdev_get_by_index+0x5e/0x80
[ 6983.741823][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6983.741823][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6983.741823][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6983.741823][   T73]      ipv6_add_addr+0x411/0x2000
[ 6983.741823][   T73]      inet6_addr_add+0x30e/0xa40
[ 6983.741823][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6983.741823][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6983.741823][   T73]      netlink_rcv_skb+0x130/0x360
[ 6983.741823][   T73]      netlink_unicast+0x449/0x710
[ 6983.741823][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6983.741823][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6983.741823][   T73]      ___sys_sendmsg+0xee/0x170
[ 6983.741823][   T73]      __sys_sendmsg+0xcd/0x170
[ 6983.741823][   T73]      do_syscall_64+0xc6/0x1e0
[ 6983.741823][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6983.741823][   T73] 
[ 6983.743822][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6983.743822][   T73]      netdev_get_by_index+0x5e/0x80
[ 6983.743822][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6983.743822][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6983.743822][   T73]      ip6_route_add+0x1c/0x140
[ 6983.743822][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6983.743822][   T73]      addrconf_add_dev+0xe2/0x170
[ 6983.743822][   T73]      inet6_addr_add+0x12f/0xa40
[ 6983.743822][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6983.743822][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6983.743822][   T73]      netlink_rcv_skb+0x130/0x360
[ 6983.743822][   T73]      netlink_unicast+0x449/0x710
[ 6983.743822][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6983.743822][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6983.743822][   T73]      ___sys_sendmsg+0xee/0x170
[ 6983.743822][   T73]      __sys_sendmsg+0xcd/0x170
[ 6983.743822][   T73]      do_syscall_64+0xc6/0x1e0
[ 6983.743822][   T73] 
[ 6983.745776][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6983.745776][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6983.745776][   T73]      ipv6_find_idev+0x102/0x170
[ 6983.745776][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6983.745776][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6983.745776][   T73]      netlink_rcv_skb+0x130/0x360
[ 6983.745776][   T73]      netlink_unicast+0x449/0x710
[ 6983.745776][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6983.745776][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6983.745776][   T73]      ___sys_sendmsg+0xee/0x170
[ 6983.745776][   T73]      __sys_sendmsg+0xcd/0x170
[ 6983.745776][   T73]      do_syscall_64+0xc6/0x1e0
[ 6983.745776][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6983.745776][   T73] 
[ 6983.747309][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6983.747309][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6983.747309][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6983.747309][   T73]      ipv6_find_idev+0x102/0x170
[ 6983.747309][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6983.747309][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6983.747309][   T73]      netlink_rcv_skb+0x130/0x360
[ 6983.747309][   T73]      netlink_unicast+0x449/0x710
[ 6983.747309][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6983.747309][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6983.747309][   T73]      ___sys_sendmsg+0xee/0x170
[ 6983.747309][   T73]      __sys_sendmsg+0xcd/0x170
[ 6983.747309][   T73]      do_syscall_64+0xc6/0x1e0
[ 6983.747309][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6983.747309][   T73] 
[ 6983.749006][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6983.749284][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6983.749284][   T73]      netdev_get_by_index+0x5e/0x80
[ 6983.749284][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6983.749284][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6983.749284][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6983.749284][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6983.749284][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6983.749284][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6983.749284][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6983.749284][   T73]      addrconf_dad_begin+0x310/0x670
[ 6983.749284][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6983.749284][   T73]      process_one_work+0x84d/0x18a0
[ 6983.749284][   T73]      worker_thread+0x587/0xd30
[ 6983.749284][   T73]      kthread+0x28a/0x350
[ 6983.749284][   T73]      ret_from_fork+0x31/0x70
[ 6983.749284][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6983.749284][   T73] 
[ 6983.751192][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6983.751192][   T73]      netdev_get_by_index+0x5e/0x80
[ 6983.751192][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6983.751192][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6983.751192][   T73]      ip6_route_add+0x1c/0x140
[ 6983.751192][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6983.751192][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6983.751192][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6983.751192][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6983.751192][   T73]      netlink_rcv_skb+0x130/0x360
[ 6983.751192][   T73]      netlink_unicast+0x449/0x710
[ 6983.751192][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6983.751192][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6983.751192][   T73]      ___sys_sendmsg+0xee/0x170
[ 6983.751192][   T73]      __sys_sendmsg+0xcd/0x170
[ 6983.751192][   T73]      do_syscall_64+0xc6/0x1e0
[ 6983.751192][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6983.751192][   T73] 
[ 6983.753199][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6983.753199][   T73]      netdev_get_by_index+0x5e/0x80
[ 6983.753199][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6983.753199][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6983.753199][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6983.753199][   T73]      ipv6_add_addr+0x411/0x2000
[ 6983.753199][   T73]      inet6_addr_add+0x30e/0xa40
[ 6983.753199][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6983.753199][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6983.753199][   T73]      netlink_rcv_skb+0x130/0x360
[ 6983.753199][   T73]      netlink_unicast+0x449/0x710
[ 6983.753199][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6983.753199][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6983.753199][   T73]      ___sys_sendmsg+0xee/0x170
[ 6983.753199][   T73]      __sys_sendmsg+0xcd/0x170
[ 6983.753199][   T73]      do_syscall_64+0xc6/0x1e0
[ 6983.753199][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6983.753199][   T73] 
[ 6983.755188][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6983.755188][   T73]      netdev_get_by_index+0x5e/0x80
[ 6983.755188][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6983.755188][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6983.755188][   T73]      ip6_route_add+0x1c/0x140
[ 6983.755188][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6983.755188][   T73]      addrconf_add_dev+0xe2/0x170
[ 6983.755188][   T73]      inet6_addr_add+0x12f/0xa40
[ 6983.755188][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6983.755188][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6983.755188][   T73]      netlink_rcv_skb+0x130/0x360
[ 6983.755188][   T73]      netlink_unicast+0x449/0x710
[ 6983.755188][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6983.755188][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6983.755188][   T73]      ___sys_sendmsg+0xee/0x170
[ 6983.755188][   T73]      __sys_sendmsg+0xcd/0x170
[ 6983.755188][   T73]      do_syscall_64+0xc6/0x1e0
[ 6983.755188][   T73] 
[ 6983.757139][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6983.757139][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6983.757139][   T73]      ipv6_find_idev+0x102/0x170
[ 6983.757139][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6983.757139][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6983.757139][   T73]      netlink_rcv_skb+0x130/0x360
[ 6983.757139][   T73]      netlink_unicast+0x449/0x710
[ 6983.757139][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6983.757139][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6983.757139][   T73]      ___sys_sendmsg+0xee/0x170
[ 6983.757139][   T73]      __sys_sendmsg+0xcd/0x170
[ 6983.757139][   T73]      do_syscall_64+0xc6/0x1e0
[ 6983.757139][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6983.757139][   T73] 
[ 6983.758678][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6983.758678][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6983.758678][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6983.758678][   T73]      ipv6_find_idev+0x102/0x170
[ 6983.758678][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6983.758678][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6983.758678][   T73]      netlink_rcv_skb+0x130/0x360
[ 6983.758678][   T73]      netlink_unicast+0x449/0x710
[ 6983.758678][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6983.758678][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6983.758678][   T73]      ___sys_sendmsg+0xee/0x170
[ 6983.758678][   T73]      __sys_sendmsg+0xcd/0x170
[ 6983.758678][   T73]      do_syscall_64+0xc6/0x1e0
[ 6983.758678][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6983.758678][   T73] 
[ 6983.760355][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6983.760617][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6983.760617][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6983.760617][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6983.760617][   T73]      fib6_nh_init+0xa22/0x1580
[ 6983.760617][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6983.760617][   T73]      ip6_route_add+0x1c/0x140
[ 6983.760617][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6983.760617][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6983.760617][   T73]      netlink_rcv_skb+0x130/0x360
[ 6983.760617][   T73]      netlink_unicast+0x449/0x710
[ 6983.760617][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6983.760617][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6983.760617][   T73]      ___sys_sendmsg+0xee/0x170
[ 6983.760617][   T73]      __sys_sendmsg+0xcd/0x170
[ 6983.760617][   T73]      do_syscall_64+0xc6/0x1e0
[ 6983.760617][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6983.760617][   T73] 
[ 6983.762680][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6983.762680][   T73]      dst_init+0x84/0x4a0
[ 6983.762680][   T73]      dst_alloc+0x97/0x150
[ 6983.762680][   T73]      ip6_dst_alloc+0x23/0x90
[ 6983.762680][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6983.762680][   T73]      ip6_pol_route+0x56f/0x840
[ 6983.762680][   T73]      fib6_rule_lookup+0x456/0x630
[ 6983.762680][   T73]      ip6_route_input+0x59c/0xa50
[ 6983.762680][   T73]      ipv6_rcv+0x397/0x810
[ 6983.762680][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6983.762680][   T73]      process_backlog+0x101/0x620
[ 6983.762680][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6983.762680][   T73]      net_rx_action+0x495/0xbe0
[ 6983.762680][   T73]      __do_softirq+0x1b5/0x7f6
[ 6983.762680][   T73] 
[ 6983.764495][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6983.764495][   T73]      netdev_get_by_index+0x5e/0x80
[ 6983.764495][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6983.764495][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6983.764495][   T73]      ip6_route_add+0x1c/0x140
[ 6983.764495][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6983.764495][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6983.764495][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6983.764495][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6983.764495][   T73]      netlink_rcv_skb+0x130/0x360
[ 6983.764495][   T73]      netlink_unicast+0x449/0x710
[ 6983.764495][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6983.764495][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6983.764495][   T73]      ___sys_sendmsg+0xee/0x170
[ 6983.764495][   T73]      __sys_sendmsg+0xcd/0x170
[ 6983.764495][   T73]      do_syscall_64+0xc6/0x1e0
[ 6983.764495][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6983.764495][   T73] 
[ 6983.766726][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6983.766726][   T73]      netdev_get_by_index+0x5e/0x80
[ 6983.766726][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6983.766726][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6983.766726][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6983.766726][   T73]      ipv6_add_addr+0x411/0x2000
[ 6983.766726][   T73]      inet6_addr_add+0x30e/0xa40
[ 6983.766726][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6983.766726][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6983.766726][   T73]      netlink_rcv_skb+0x130/0x360
[ 6983.766726][   T73]      netlink_unicast+0x449/0x710
[ 6983.766726][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6983.766726][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6983.766726][   T73]      ___sys_sendmsg+0xee/0x170
[ 6983.766726][   T73]      __sys_sendmsg+0xcd/0x170
[ 6983.766726][   T73]      do_syscall_64+0xc6/0x1e0
[ 6983.766726][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6983.766726][   T73] 
[ 6983.768972][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6983.768972][   T73]      netdev_get_by_index+0x5e/0x80
[ 6983.768972][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6983.768972][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6983.768972][   T73]      ip6_route_add+0x1c/0x140
[ 6983.768972][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6983.768972][   T73]      addrconf_add_dev+0xe2/0x170
[ 6983.768972][   T73]      inet6_addr_add+0x12f/0xa40
[ 6983.768972][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6983.768972][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6983.768972][   T73]      netlink_rcv_skb+0x130/0x360
[ 6983.768972][   T73]      netlink_unicast+0x449/0x710
[ 6983.768972][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6983.768972][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6983.768972][   T73]      ___sys_sendmsg+0xee/0x170
[ 6983.768972][   T73]      __sys_sendmsg+0xcd/0x170
[ 6983.768972][   T73]      do_syscall_64+0xc6/0x1e0
[ 6983.768972][   T73] 
[ 6983.771192][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6983.771192][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6983.771192][   T73]      ipv6_find_idev+0x102/0x170
[ 6983.771192][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6983.771192][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6983.771192][   T73]      netlink_rcv_skb+0x130/0x360
[ 6983.771192][   T73]      netlink_unicast+0x449/0x710
[ 6983.771192][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6983.771192][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6983.771192][   T73]      ___sys_sendmsg+0xee/0x170
[ 6983.771192][   T73]      __sys_sendmsg+0xcd/0x170
[ 6983.771192][   T73]      do_syscall_64+0xc6/0x1e0
[ 6983.771192][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6983.771192][   T73] 
[ 6983.772912][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6983.772912][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6983.772912][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6983.772912][   T73]      ipv6_find_idev+0x102/0x170
[ 6983.772912][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6983.772912][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6983.772912][   T73]      netlink_rcv_skb+0x130/0x360
[ 6983.772912][   T73]      netlink_unicast+0x449/0x710
[ 6983.772912][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6983.772912][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6983.772912][   T73]      ___sys_sendmsg+0xee/0x170
[ 6983.772912][   T73]      __sys_sendmsg+0xcd/0x170
[ 6983.772912][   T73]      do_syscall_64+0xc6/0x1e0
[ 6983.772912][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6983.772912][   T73] 
[ 6983.774829][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6983.775098][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6983.775098][   T73]      netdev_get_by_index+0x5e/0x80
[ 6983.775098][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6983.775098][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6983.775098][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6983.775098][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6983.775098][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6983.775098][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6983.775098][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6983.775098][   T73]      addrconf_dad_begin+0x310/0x670
[ 6983.775098][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6983.775098][   T73]      process_one_work+0x84d/0x18a0
[ 6983.775098][   T73]      worker_thread+0x587/0xd30
[ 6983.775098][   T73]      kthread+0x28a/0x350
[ 6983.775098][   T73]      ret_from_fork+0x31/0x70
[ 6983.775098][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6983.775098][   T73] 
[ 6983.777243][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6983.777243][   T73]      netdev_get_by_index+0x5e/0x80
[ 6983.777243][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6983.777243][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6983.777243][   T73]      ip6_route_add+0x1c/0x140
[ 6983.777243][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6983.777243][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6983.777243][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6983.777243][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6983.777243][   T73]      netlink_rcv_skb+0x130/0x360
[ 6983.777243][   T73]      netlink_unicast+0x449/0x710
[ 6983.777243][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6983.777243][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6983.777243][   T73]      ___sys_sendmsg+0xee/0x170
[ 6983.777243][   T73]      __sys_sendmsg+0xcd/0x170
[ 6983.777243][   T73]      do_syscall_64+0xc6/0x1e0
[ 6983.777243][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6983.777243][   T73] 
[ 6983.779458][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6983.779458][   T73]      netdev_get_by_index+0x5e/0x80
[ 6983.779458][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6983.779458][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6983.779458][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6983.779458][   T73]      ipv6_add_addr+0x411/0x2000
[ 6983.779458][   T73]      inet6_addr_add+0x30e/0xa40
[ 6983.779458][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6983.779458][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6983.779458][   T73]      netlink_rcv_skb+0x130/0x360
[ 6983.779458][   T73]      netlink_unicast+0x449/0x710
[ 6983.779458][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6983.779458][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6983.779458][   T73]      ___sys_sendmsg+0xee/0x170
[ 6983.779458][   T73]      __sys_sendmsg+0xcd/0x170
[ 6983.779458][   T73]      do_syscall_64+0xc6/0x1e0
[ 6983.779458][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6983.779458][   T73] 
[ 6983.781786][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6983.781786][   T73]      netdev_get_by_index+0x5e/0x80
[ 6983.781786][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6983.781786][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6983.781786][   T73]      ip6_route_add+0x1c/0x140
[ 6983.781786][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6983.781786][   T73]      addrconf_add_dev+0xe2/0x170
[ 6983.781786][   T73]      inet6_addr_add+0x12f/0xa40
[ 6983.781786][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6983.781786][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6983.781786][   T73]      netlink_rcv_skb+0x130/0x360
[ 6983.781786][   T73]      netlink_unicast+0x449/0x710
[ 6983.781786][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6983.781786][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6983.781786][   T73]      ___sys_sendmsg+0xee/0x170
[ 6983.781786][   T73]      __sys_sendmsg+0xcd/0x170
[ 6983.781786][   T73]      do_syscall_64+0xc6/0x1e0
[ 6983.781786][   T73] 
[ 6983.783997][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6983.783997][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6983.783997][   T73]      ipv6_find_idev+0x102/0x170
[ 6983.783997][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6983.783997][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6983.783997][   T73]      netlink_rcv_skb+0x130/0x360
[ 6983.783997][   T73]      netlink_unicast+0x449/0x710
[ 6983.783997][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6983.783997][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6983.783997][   T73]      ___sys_sendmsg+0xee/0x170
[ 6983.783997][   T73]      __sys_sendmsg+0xcd/0x170
[ 6983.783997][   T73]      do_syscall_64+0xc6/0x1e0
[ 6983.783997][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6983.783997][   T73] 
[ 6983.785721][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6983.785721][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6983.785721][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6983.785721][   T73]      ipv6_find_idev+0x102/0x170
[ 6983.785721][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6983.785721][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6983.785721][   T73]      netlink_rcv_skb+0x130/0x360
[ 6983.785721][   T73]      netlink_unicast+0x449/0x710
[ 6983.785721][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6983.785721][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6983.785721][   T73]      ___sys_sendmsg+0xee/0x170
[ 6983.785721][   T73]      __sys_sendmsg+0xcd/0x170
[ 6983.785721][   T73]      do_syscall_64+0xc6/0x1e0
[ 6983.785721][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6983.785721][   T73] 
[ 6994.335761][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 6994.336215][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6994.336215][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6994.336215][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6994.336215][   T73]      fib6_nh_init+0xa22/0x1580
[ 6994.336215][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6994.336215][   T73]      ip6_route_add+0x1c/0x140
[ 6994.336215][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6994.336215][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6994.336215][   T73]      netlink_rcv_skb+0x130/0x360
[ 6994.336215][   T73]      netlink_unicast+0x449/0x710
[ 6994.336215][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6994.336215][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6994.336215][   T73]      ___sys_sendmsg+0xee/0x170
[ 6994.336215][   T73]      __sys_sendmsg+0xcd/0x170
[ 6994.336215][   T73]      do_syscall_64+0xc6/0x1e0
[ 6994.336215][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6994.336215][   T73] 
[ 6994.338146][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 6994.338146][   T73]      dst_init+0x84/0x4a0
[ 6994.338146][   T73]      dst_alloc+0x97/0x150
[ 6994.338146][   T73]      ip6_dst_alloc+0x23/0x90
[ 6994.338146][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6994.338146][   T73]      ip6_pol_route+0x56f/0x840
[ 6994.338146][   T73]      fib6_rule_lookup+0x456/0x630
[ 6994.338146][   T73]      ip6_route_input+0x59c/0xa50
[ 6994.338146][   T73]      ipv6_rcv+0x397/0x810
[ 6994.338146][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6994.338146][   T73]      process_backlog+0x101/0x620
[ 6994.338146][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6994.338146][   T73]      net_rx_action+0x495/0xbe0
[ 6994.338146][   T73]      __do_softirq+0x1b5/0x7f6
[ 6994.338146][   T73] 
[ 6994.339799][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6994.339799][   T73]      netdev_get_by_index+0x5e/0x80
[ 6994.339799][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6994.339799][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6994.339799][   T73]      ip6_route_add+0x1c/0x140
[ 6994.339799][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6994.339799][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6994.339799][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6994.339799][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6994.339799][   T73]      netlink_rcv_skb+0x130/0x360
[ 6994.339799][   T73]      netlink_unicast+0x449/0x710
[ 6994.339799][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6994.339799][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6994.339799][   T73]      ___sys_sendmsg+0xee/0x170
[ 6994.339799][   T73]      __sys_sendmsg+0xcd/0x170
[ 6994.339799][   T73]      do_syscall_64+0xc6/0x1e0
[ 6994.339799][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6994.339799][   T73] 
[ 6994.341821][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6994.341821][   T73]      netdev_get_by_index+0x5e/0x80
[ 6994.341821][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6994.341821][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6994.341821][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6994.341821][   T73]      ipv6_add_addr+0x411/0x2000
[ 6994.341821][   T73]      inet6_addr_add+0x30e/0xa40
[ 6994.341821][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6994.341821][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6994.341821][   T73]      netlink_rcv_skb+0x130/0x360
[ 6994.341821][   T73]      netlink_unicast+0x449/0x710
[ 6994.341821][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6994.341821][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6994.341821][   T73]      ___sys_sendmsg+0xee/0x170
[ 6994.341821][   T73]      __sys_sendmsg+0xcd/0x170
[ 6994.341821][   T73]      do_syscall_64+0xc6/0x1e0
[ 6994.341821][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6994.341821][   T73] 
[ 6994.343839][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6994.343839][   T73]      netdev_get_by_index+0x5e/0x80
[ 6994.343839][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6994.343839][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6994.343839][   T73]      ip6_route_add+0x1c/0x140
[ 6994.343839][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6994.343839][   T73]      addrconf_add_dev+0xe2/0x170
[ 6994.343839][   T73]      inet6_addr_add+0x12f/0xa40
[ 6994.343839][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6994.343839][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6994.343839][   T73]      netlink_rcv_skb+0x130/0x360
[ 6994.343839][   T73]      netlink_unicast+0x449/0x710
[ 6994.343839][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6994.343839][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6994.343839][   T73]      ___sys_sendmsg+0xee/0x170
[ 6994.343839][   T73]      __sys_sendmsg+0xcd/0x170
[ 6994.343839][   T73]      do_syscall_64+0xc6/0x1e0
[ 6994.343839][   T73] 
[ 6994.345815][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6994.345815][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6994.345815][   T73]      ipv6_find_idev+0x102/0x170
[ 6994.345815][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6994.345815][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6994.345815][   T73]      netlink_rcv_skb+0x130/0x360
[ 6994.345815][   T73]      netlink_unicast+0x449/0x710
[ 6994.345815][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6994.345815][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6994.345815][   T73]      ___sys_sendmsg+0xee/0x170
[ 6994.345815][   T73]      __sys_sendmsg+0xcd/0x170
[ 6994.345815][   T73]      do_syscall_64+0xc6/0x1e0
[ 6994.345815][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6994.345815][   T73] 
[ 6994.347363][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 6994.347363][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6994.347363][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6994.347363][   T73]      ipv6_find_idev+0x102/0x170
[ 6994.347363][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6994.347363][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6994.347363][   T73]      netlink_rcv_skb+0x130/0x360
[ 6994.347363][   T73]      netlink_unicast+0x449/0x710
[ 6994.347363][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6994.347363][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6994.347363][   T73]      ___sys_sendmsg+0xee/0x170
[ 6994.347363][   T73]      __sys_sendmsg+0xcd/0x170
[ 6994.347363][   T73]      do_syscall_64+0xc6/0x1e0
[ 6994.347363][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6994.347363][   T73] 
[ 6994.349101][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 6994.349377][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6994.349377][   T73]      netdev_get_by_index+0x5e/0x80
[ 6994.349377][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6994.349377][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6994.349377][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6994.349377][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6994.349377][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6994.349377][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6994.349377][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6994.349377][   T73]      addrconf_dad_begin+0x310/0x670
[ 6994.349377][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6994.349377][   T73]      process_one_work+0x84d/0x18a0
[ 6994.349377][   T73]      worker_thread+0x587/0xd30
[ 6994.349377][   T73]      kthread+0x28a/0x350
[ 6994.349377][   T73]      ret_from_fork+0x31/0x70
[ 6994.349377][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6994.349377][   T73] 
[ 6994.351352][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6994.351352][   T73]      netdev_get_by_index+0x5e/0x80
[ 6994.351352][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6994.351352][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6994.351352][   T73]      ip6_route_add+0x1c/0x140
[ 6994.351352][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6994.351352][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6994.351352][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6994.351352][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6994.351352][   T73]      netlink_rcv_skb+0x130/0x360
[ 6994.351352][   T73]      netlink_unicast+0x449/0x710
[ 6994.351352][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6994.351352][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6994.351352][   T73]      ___sys_sendmsg+0xee/0x170
[ 6994.351352][   T73]      __sys_sendmsg+0xcd/0x170
[ 6994.351352][   T73]      do_syscall_64+0xc6/0x1e0
[ 6994.351352][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6994.351352][   T73] 
[ 6994.353386][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6994.353386][   T73]      netdev_get_by_index+0x5e/0x80
[ 6994.353386][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6994.353386][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6994.353386][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6994.353386][   T73]      ipv6_add_addr+0x411/0x2000
[ 6994.353386][   T73]      inet6_addr_add+0x30e/0xa40
[ 6994.353386][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6994.353386][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6994.353386][   T73]      netlink_rcv_skb+0x130/0x360
[ 6994.353386][   T73]      netlink_unicast+0x449/0x710
[ 6994.353386][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6994.353386][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6994.353386][   T73]      ___sys_sendmsg+0xee/0x170
[ 6994.353386][   T73]      __sys_sendmsg+0xcd/0x170
[ 6994.353386][   T73]      do_syscall_64+0xc6/0x1e0
[ 6994.353386][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6994.353386][   T73] 
[ 6994.355398][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6994.355398][   T73]      netdev_get_by_index+0x5e/0x80
[ 6994.355398][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6994.355398][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6994.355398][   T73]      ip6_route_add+0x1c/0x140
[ 6994.355398][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6994.355398][   T73]      addrconf_add_dev+0xe2/0x170
[ 6994.355398][   T73]      inet6_addr_add+0x12f/0xa40
[ 6994.355398][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6994.355398][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6994.355398][   T73]      netlink_rcv_skb+0x130/0x360
[ 6994.355398][   T73]      netlink_unicast+0x449/0x710
[ 6994.355398][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6994.355398][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6994.355398][   T73]      ___sys_sendmsg+0xee/0x170
[ 6994.355398][   T73]      __sys_sendmsg+0xcd/0x170
[ 6994.355398][   T73]      do_syscall_64+0xc6/0x1e0
[ 6994.355398][   T73] 
[ 6994.357381][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6994.357381][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6994.357381][   T73]      ipv6_find_idev+0x102/0x170
[ 6994.357381][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6994.357381][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6994.357381][   T73]      netlink_rcv_skb+0x130/0x360
[ 6994.357381][   T73]      netlink_unicast+0x449/0x710
[ 6994.357381][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6994.357381][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6994.357381][   T73]      ___sys_sendmsg+0xee/0x170
[ 6994.357381][   T73]      __sys_sendmsg+0xcd/0x170
[ 6994.357381][   T73]      do_syscall_64+0xc6/0x1e0
[ 6994.357381][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6994.357381][   T73] 
[ 6994.358931][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 6994.358931][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6994.358931][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6994.358931][   T73]      ipv6_find_idev+0x102/0x170
[ 6994.358931][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6994.358931][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6994.358931][   T73]      netlink_rcv_skb+0x130/0x360
[ 6994.358931][   T73]      netlink_unicast+0x449/0x710
[ 6994.358931][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6994.358931][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6994.358931][   T73]      ___sys_sendmsg+0xee/0x170
[ 6994.358931][   T73]      __sys_sendmsg+0xcd/0x170
[ 6994.358931][   T73]      do_syscall_64+0xc6/0x1e0
[ 6994.358931][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6994.358931][   T73] 
[ 6994.360617][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 6994.360891][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6994.360891][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 6994.360891][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 6994.360891][   T73]      fib6_nh_init+0xa22/0x1580
[ 6994.360891][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6994.360891][   T73]      ip6_route_add+0x1c/0x140
[ 6994.360891][   T73]      inet6_rtm_newroute+0x104/0x110
[ 6994.360891][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6994.360891][   T73]      netlink_rcv_skb+0x130/0x360
[ 6994.360891][   T73]      netlink_unicast+0x449/0x710
[ 6994.360891][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6994.360891][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6994.360891][   T73]      ___sys_sendmsg+0xee/0x170
[ 6994.360891][   T73]      __sys_sendmsg+0xcd/0x170
[ 6994.360891][   T73]      do_syscall_64+0xc6/0x1e0
[ 6994.360891][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6994.360891][   T73] 
[ 6994.362984][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 6994.362984][   T73]      dst_init+0x84/0x4a0
[ 6994.362984][   T73]      dst_alloc+0x97/0x150
[ 6994.362984][   T73]      ip6_dst_alloc+0x23/0x90
[ 6994.362984][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 6994.362984][   T73]      ip6_pol_route+0x56f/0x840
[ 6994.362984][   T73]      fib6_rule_lookup+0x456/0x630
[ 6994.362984][   T73]      ip6_route_input+0x59c/0xa50
[ 6994.362984][   T73]      ipv6_rcv+0x397/0x810
[ 6994.362984][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 6994.362984][   T73]      process_backlog+0x101/0x620
[ 6994.362984][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 6994.362984][   T73]      net_rx_action+0x495/0xbe0
[ 6994.362984][   T73]      __do_softirq+0x1b5/0x7f6
[ 6994.362984][   T73] 
[ 6994.364812][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6994.364812][   T73]      netdev_get_by_index+0x5e/0x80
[ 6994.364812][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6994.364812][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6994.364812][   T73]      ip6_route_add+0x1c/0x140
[ 6994.364812][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6994.364812][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6994.364812][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6994.364812][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6994.364812][   T73]      netlink_rcv_skb+0x130/0x360
[ 6994.364812][   T73]      netlink_unicast+0x449/0x710
[ 6994.364812][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6994.364812][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6994.364812][   T73]      ___sys_sendmsg+0xee/0x170
[ 6994.364812][   T73]      __sys_sendmsg+0xcd/0x170
[ 6994.364812][   T73]      do_syscall_64+0xc6/0x1e0
[ 6994.364812][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6994.364812][   T73] 
[ 6994.367124][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6994.367124][   T73]      netdev_get_by_index+0x5e/0x80
[ 6994.367124][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6994.367124][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6994.367124][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6994.367124][   T73]      ipv6_add_addr+0x411/0x2000
[ 6994.367124][   T73]      inet6_addr_add+0x30e/0xa40
[ 6994.367124][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6994.367124][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6994.367124][   T73]      netlink_rcv_skb+0x130/0x360
[ 6994.367124][   T73]      netlink_unicast+0x449/0x710
[ 6994.367124][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6994.367124][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6994.367124][   T73]      ___sys_sendmsg+0xee/0x170
[ 6994.367124][   T73]      __sys_sendmsg+0xcd/0x170
[ 6994.367124][   T73]      do_syscall_64+0xc6/0x1e0
[ 6994.367124][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6994.367124][   T73] 
[ 6994.369379][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6994.369379][   T73]      netdev_get_by_index+0x5e/0x80
[ 6994.369379][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6994.369379][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6994.369379][   T73]      ip6_route_add+0x1c/0x140
[ 6994.369379][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6994.369379][   T73]      addrconf_add_dev+0xe2/0x170
[ 6994.369379][   T73]      inet6_addr_add+0x12f/0xa40
[ 6994.369379][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6994.369379][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6994.369379][   T73]      netlink_rcv_skb+0x130/0x360
[ 6994.369379][   T73]      netlink_unicast+0x449/0x710
[ 6994.369379][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6994.369379][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6994.369379][   T73]      ___sys_sendmsg+0xee/0x170
[ 6994.369379][   T73]      __sys_sendmsg+0xcd/0x170
[ 6994.369379][   T73]      do_syscall_64+0xc6/0x1e0
[ 6994.369379][   T73] 
[ 6994.371545][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6994.371545][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6994.371545][   T73]      ipv6_find_idev+0x102/0x170
[ 6994.371545][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6994.371545][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6994.371545][   T73]      netlink_rcv_skb+0x130/0x360
[ 6994.371545][   T73]      netlink_unicast+0x449/0x710
[ 6994.371545][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6994.371545][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6994.371545][   T73]      ___sys_sendmsg+0xee/0x170
[ 6994.371545][   T73]      __sys_sendmsg+0xcd/0x170
[ 6994.371545][   T73]      do_syscall_64+0xc6/0x1e0
[ 6994.371545][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6994.371545][   T73] 
[ 6994.373291][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 6994.373291][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6994.373291][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6994.373291][   T73]      ipv6_find_idev+0x102/0x170
[ 6994.373291][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6994.373291][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6994.373291][   T73]      netlink_rcv_skb+0x130/0x360
[ 6994.373291][   T73]      netlink_unicast+0x449/0x710
[ 6994.373291][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6994.373291][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6994.373291][   T73]      ___sys_sendmsg+0xee/0x170
[ 6994.373291][   T73]      __sys_sendmsg+0xcd/0x170
[ 6994.373291][   T73]      do_syscall_64+0xc6/0x1e0
[ 6994.373291][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6994.373291][   T73] 
[ 6994.375301][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 6994.375576][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6994.375576][   T73]      netdev_get_by_index+0x5e/0x80
[ 6994.375576][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6994.375576][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6994.375576][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 6994.375576][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 6994.375576][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 6994.375576][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 6994.375576][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 6994.375576][   T73]      addrconf_dad_begin+0x310/0x670
[ 6994.375576][   T73]      addrconf_dad_work+0x10b/0xab0
[ 6994.375576][   T73]      process_one_work+0x84d/0x18a0
[ 6994.375576][   T73]      worker_thread+0x587/0xd30
[ 6994.375576][   T73]      kthread+0x28a/0x350
[ 6994.375576][   T73]      ret_from_fork+0x31/0x70
[ 6994.375576][   T73]      ret_from_fork_asm+0x1a/0x30
[ 6994.375576][   T73] 
[ 6994.377806][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6994.377806][   T73]      netdev_get_by_index+0x5e/0x80
[ 6994.377806][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6994.377806][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6994.377806][   T73]      ip6_route_add+0x1c/0x140
[ 6994.377806][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 6994.377806][   T73]      inet6_addr_add+0x4f8/0xa40
[ 6994.377806][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6994.377806][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6994.377806][   T73]      netlink_rcv_skb+0x130/0x360
[ 6994.377806][   T73]      netlink_unicast+0x449/0x710
[ 6994.377806][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6994.377806][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6994.377806][   T73]      ___sys_sendmsg+0xee/0x170
[ 6994.377806][   T73]      __sys_sendmsg+0xcd/0x170
[ 6994.377806][   T73]      do_syscall_64+0xc6/0x1e0
[ 6994.377806][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6994.377806][   T73] 
[ 6994.379987][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6994.379987][   T73]      netdev_get_by_index+0x5e/0x80
[ 6994.379987][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6994.379987][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6994.379987][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 6994.379987][   T73]      ipv6_add_addr+0x411/0x2000
[ 6994.379987][   T73]      inet6_addr_add+0x30e/0xa40
[ 6994.379987][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6994.379987][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6994.379987][   T73]      netlink_rcv_skb+0x130/0x360
[ 6994.379987][   T73]      netlink_unicast+0x449/0x710
[ 6994.379987][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6994.379987][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6994.379987][   T73]      ___sys_sendmsg+0xee/0x170
[ 6994.379987][   T73]      __sys_sendmsg+0xcd/0x170
[ 6994.379987][   T73]      do_syscall_64+0xc6/0x1e0
[ 6994.379987][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6994.379987][   T73] 
[ 6994.382252][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6994.382252][   T73]      netdev_get_by_index+0x5e/0x80
[ 6994.382252][   T73]      fib6_nh_init+0x3d8/0x1580
[ 6994.382252][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 6994.382252][   T73]      ip6_route_add+0x1c/0x140
[ 6994.382252][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 6994.382252][   T73]      addrconf_add_dev+0xe2/0x170
[ 6994.382252][   T73]      inet6_addr_add+0x12f/0xa40
[ 6994.382252][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 6994.382252][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6994.382252][   T73]      netlink_rcv_skb+0x130/0x360
[ 6994.382252][   T73]      netlink_unicast+0x449/0x710
[ 6994.382252][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6994.382252][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6994.382252][   T73]      ___sys_sendmsg+0xee/0x170
[ 6994.382252][   T73]      __sys_sendmsg+0xcd/0x170
[ 6994.382252][   T73]      do_syscall_64+0xc6/0x1e0
[ 6994.382252][   T73] 
[ 6994.384469][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6994.384469][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 6994.384469][   T73]      ipv6_find_idev+0x102/0x170
[ 6994.384469][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6994.384469][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6994.384469][   T73]      netlink_rcv_skb+0x130/0x360
[ 6994.384469][   T73]      netlink_unicast+0x449/0x710
[ 6994.384469][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6994.384469][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6994.384469][   T73]      ___sys_sendmsg+0xee/0x170
[ 6994.384469][   T73]      __sys_sendmsg+0xcd/0x170
[ 6994.384469][   T73]      do_syscall_64+0xc6/0x1e0
[ 6994.384469][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6994.384469][   T73] 
[ 6994.386261][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 6994.386261][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 6994.386261][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 6994.386261][   T73]      ipv6_find_idev+0x102/0x170
[ 6994.386261][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 6994.386261][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 6994.386261][   T73]      netlink_rcv_skb+0x130/0x360
[ 6994.386261][   T73]      netlink_unicast+0x449/0x710
[ 6994.386261][   T73]      netlink_sendmsg+0x723/0xbe0
[ 6994.386261][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 6994.386261][   T73]      ___sys_sendmsg+0xee/0x170
[ 6994.386261][   T73]      __sys_sendmsg+0xcd/0x170
[ 6994.386261][   T73]      do_syscall_64+0xc6/0x1e0
[ 6994.386261][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 6994.386261][   T73] 
[ 7004.623780][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 7004.624282][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7004.624282][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 7004.624282][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 7004.624282][   T73]      fib6_nh_init+0xa22/0x1580
[ 7004.624282][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7004.624282][   T73]      ip6_route_add+0x1c/0x140
[ 7004.624282][   T73]      inet6_rtm_newroute+0x104/0x110
[ 7004.624282][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7004.624282][   T73]      netlink_rcv_skb+0x130/0x360
[ 7004.624282][   T73]      netlink_unicast+0x449/0x710
[ 7004.624282][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7004.624282][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7004.624282][   T73]      ___sys_sendmsg+0xee/0x170
[ 7004.624282][   T73]      __sys_sendmsg+0xcd/0x170
[ 7004.624282][   T73]      do_syscall_64+0xc6/0x1e0
[ 7004.624282][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7004.624282][   T73] 
[ 7004.626201][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 7004.626201][   T73]      dst_init+0x84/0x4a0
[ 7004.626201][   T73]      dst_alloc+0x97/0x150
[ 7004.626201][   T73]      ip6_dst_alloc+0x23/0x90
[ 7004.626201][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 7004.626201][   T73]      ip6_pol_route+0x56f/0x840
[ 7004.626201][   T73]      fib6_rule_lookup+0x456/0x630
[ 7004.626201][   T73]      ip6_route_input+0x59c/0xa50
[ 7004.626201][   T73]      ipv6_rcv+0x397/0x810
[ 7004.626201][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 7004.626201][   T73]      process_backlog+0x101/0x620
[ 7004.626201][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 7004.626201][   T73]      net_rx_action+0x495/0xbe0
[ 7004.626201][   T73]      __do_softirq+0x1b5/0x7f6
[ 7004.626201][   T73] 
[ 7004.627857][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7004.627857][   T73]      netdev_get_by_index+0x5e/0x80
[ 7004.627857][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7004.627857][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7004.627857][   T73]      ip6_route_add+0x1c/0x140
[ 7004.627857][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7004.627857][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7004.627857][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7004.627857][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7004.627857][   T73]      netlink_rcv_skb+0x130/0x360
[ 7004.627857][   T73]      netlink_unicast+0x449/0x710
[ 7004.627857][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7004.627857][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7004.627857][   T73]      ___sys_sendmsg+0xee/0x170
[ 7004.627857][   T73]      __sys_sendmsg+0xcd/0x170
[ 7004.627857][   T73]      do_syscall_64+0xc6/0x1e0
[ 7004.627857][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7004.627857][   T73] 
[ 7004.629872][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7004.629872][   T73]      netdev_get_by_index+0x5e/0x80
[ 7004.629872][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7004.629872][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7004.629872][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7004.629872][   T73]      ipv6_add_addr+0x411/0x2000
[ 7004.629872][   T73]      inet6_addr_add+0x30e/0xa40
[ 7004.629872][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7004.629872][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7004.629872][   T73]      netlink_rcv_skb+0x130/0x360
[ 7004.629872][   T73]      netlink_unicast+0x449/0x710
[ 7004.629872][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7004.629872][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7004.629872][   T73]      ___sys_sendmsg+0xee/0x170
[ 7004.629872][   T73]      __sys_sendmsg+0xcd/0x170
[ 7004.629872][   T73]      do_syscall_64+0xc6/0x1e0
[ 7004.629872][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7004.629872][   T73] 
[ 7004.631889][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7004.631889][   T73]      netdev_get_by_index+0x5e/0x80
[ 7004.631889][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7004.631889][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7004.631889][   T73]      ip6_route_add+0x1c/0x140
[ 7004.631889][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7004.631889][   T73]      addrconf_add_dev+0xe2/0x170
[ 7004.631889][   T73]      inet6_addr_add+0x12f/0xa40
[ 7004.631889][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7004.631889][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7004.631889][   T73]      netlink_rcv_skb+0x130/0x360
[ 7004.631889][   T73]      netlink_unicast+0x449/0x710
[ 7004.631889][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7004.631889][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7004.631889][   T73]      ___sys_sendmsg+0xee/0x170
[ 7004.631889][   T73]      __sys_sendmsg+0xcd/0x170
[ 7004.631889][   T73]      do_syscall_64+0xc6/0x1e0
[ 7004.631889][   T73] 
[ 7004.633990][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7004.633990][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7004.633990][   T73]      ipv6_find_idev+0x102/0x170
[ 7004.633990][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7004.633990][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7004.633990][   T73]      netlink_rcv_skb+0x130/0x360
[ 7004.633990][   T73]      netlink_unicast+0x449/0x710
[ 7004.633990][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7004.633990][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7004.633990][   T73]      ___sys_sendmsg+0xee/0x170
[ 7004.633990][   T73]      __sys_sendmsg+0xcd/0x170
[ 7004.633990][   T73]      do_syscall_64+0xc6/0x1e0
[ 7004.633990][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7004.633990][   T73] 
[ 7004.635553][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7004.635553][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7004.635553][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7004.635553][   T73]      ipv6_find_idev+0x102/0x170
[ 7004.635553][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7004.635553][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7004.635553][   T73]      netlink_rcv_skb+0x130/0x360
[ 7004.635553][   T73]      netlink_unicast+0x449/0x710
[ 7004.635553][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7004.635553][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7004.635553][   T73]      ___sys_sendmsg+0xee/0x170
[ 7004.635553][   T73]      __sys_sendmsg+0xcd/0x170
[ 7004.635553][   T73]      do_syscall_64+0xc6/0x1e0
[ 7004.635553][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7004.635553][   T73] 
[ 7004.637251][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 7004.637534][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7004.637534][   T73]      netdev_get_by_index+0x5e/0x80
[ 7004.637534][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7004.637534][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7004.637534][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 7004.637534][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 7004.637534][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 7004.637534][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 7004.637534][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 7004.637534][   T73]      addrconf_dad_begin+0x310/0x670
[ 7004.637534][   T73]      addrconf_dad_work+0x10b/0xab0
[ 7004.637534][   T73]      process_one_work+0x84d/0x18a0
[ 7004.637534][   T73]      worker_thread+0x587/0xd30
[ 7004.637534][   T73]      kthread+0x28a/0x350
[ 7004.637534][   T73]      ret_from_fork+0x31/0x70
[ 7004.637534][   T73]      ret_from_fork_asm+0x1a/0x30
[ 7004.637534][   T73] 
[ 7004.639465][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7004.639465][   T73]      netdev_get_by_index+0x5e/0x80
[ 7004.639465][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7004.639465][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7004.639465][   T73]      ip6_route_add+0x1c/0x140
[ 7004.639465][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7004.639465][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7004.639465][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7004.639465][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7004.639465][   T73]      netlink_rcv_skb+0x130/0x360
[ 7004.639465][   T73]      netlink_unicast+0x449/0x710
[ 7004.639465][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7004.639465][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7004.639465][   T73]      ___sys_sendmsg+0xee/0x170
[ 7004.639465][   T73]      __sys_sendmsg+0xcd/0x170
[ 7004.639465][   T73]      do_syscall_64+0xc6/0x1e0
[ 7004.639465][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7004.639465][   T73] 
[ 7004.641496][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7004.641496][   T73]      netdev_get_by_index+0x5e/0x80
[ 7004.641496][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7004.641496][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7004.641496][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7004.641496][   T73]      ipv6_add_addr+0x411/0x2000
[ 7004.641496][   T73]      inet6_addr_add+0x30e/0xa40
[ 7004.641496][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7004.641496][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7004.641496][   T73]      netlink_rcv_skb+0x130/0x360
[ 7004.641496][   T73]      netlink_unicast+0x449/0x710
[ 7004.641496][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7004.641496][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7004.641496][   T73]      ___sys_sendmsg+0xee/0x170
[ 7004.641496][   T73]      __sys_sendmsg+0xcd/0x170
[ 7004.641496][   T73]      do_syscall_64+0xc6/0x1e0
[ 7004.641496][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7004.641496][   T73] 
[ 7004.643505][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7004.643505][   T73]      netdev_get_by_index+0x5e/0x80
[ 7004.643505][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7004.643505][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7004.643505][   T73]      ip6_route_add+0x1c/0x140
[ 7004.643505][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7004.643505][   T73]      addrconf_add_dev+0xe2/0x170
[ 7004.643505][   T73]      inet6_addr_add+0x12f/0xa40
[ 7004.643505][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7004.643505][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7004.643505][   T73]      netlink_rcv_skb+0x130/0x360
[ 7004.643505][   T73]      netlink_unicast+0x449/0x710
[ 7004.643505][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7004.643505][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7004.643505][   T73]      ___sys_sendmsg+0xee/0x170
[ 7004.643505][   T73]      __sys_sendmsg+0xcd/0x170
[ 7004.643505][   T73]      do_syscall_64+0xc6/0x1e0
[ 7004.643505][   T73] 
[ 7004.645481][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7004.645481][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7004.645481][   T73]      ipv6_find_idev+0x102/0x170
[ 7004.645481][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7004.645481][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7004.645481][   T73]      netlink_rcv_skb+0x130/0x360
[ 7004.645481][   T73]      netlink_unicast+0x449/0x710
[ 7004.645481][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7004.645481][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7004.645481][   T73]      ___sys_sendmsg+0xee/0x170
[ 7004.645481][   T73]      __sys_sendmsg+0xcd/0x170
[ 7004.645481][   T73]      do_syscall_64+0xc6/0x1e0
[ 7004.645481][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7004.645481][   T73] 
[ 7004.647025][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7004.647025][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7004.647025][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7004.647025][   T73]      ipv6_find_idev+0x102/0x170
[ 7004.647025][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7004.647025][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7004.647025][   T73]      netlink_rcv_skb+0x130/0x360
[ 7004.647025][   T73]      netlink_unicast+0x449/0x710
[ 7004.647025][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7004.647025][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7004.647025][   T73]      ___sys_sendmsg+0xee/0x170
[ 7004.647025][   T73]      __sys_sendmsg+0xcd/0x170
[ 7004.647025][   T73]      do_syscall_64+0xc6/0x1e0
[ 7004.647025][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7004.647025][   T73] 
[ 7004.648725][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 7004.649013][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7004.649013][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 7004.649013][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 7004.649013][   T73]      fib6_nh_init+0xa22/0x1580
[ 7004.649013][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7004.649013][   T73]      ip6_route_add+0x1c/0x140
[ 7004.649013][   T73]      inet6_rtm_newroute+0x104/0x110
[ 7004.649013][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7004.649013][   T73]      netlink_rcv_skb+0x130/0x360
[ 7004.649013][   T73]      netlink_unicast+0x449/0x710
[ 7004.649013][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7004.649013][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7004.649013][   T73]      ___sys_sendmsg+0xee/0x170
[ 7004.649013][   T73]      __sys_sendmsg+0xcd/0x170
[ 7004.649013][   T73]      do_syscall_64+0xc6/0x1e0
[ 7004.649013][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7004.649013][   T73] 
[ 7004.651102][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 7004.651102][   T73]      dst_init+0x84/0x4a0
[ 7004.651102][   T73]      dst_alloc+0x97/0x150
[ 7004.651102][   T73]      ip6_dst_alloc+0x23/0x90
[ 7004.651102][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 7004.651102][   T73]      ip6_pol_route+0x56f/0x840
[ 7004.651102][   T73]      fib6_rule_lookup+0x456/0x630
[ 7004.651102][   T73]      ip6_route_input+0x59c/0xa50
[ 7004.651102][   T73]      ipv6_rcv+0x397/0x810
[ 7004.651102][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 7004.651102][   T73]      process_backlog+0x101/0x620
[ 7004.651102][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 7004.651102][   T73]      net_rx_action+0x495/0xbe0
[ 7004.651102][   T73]      __do_softirq+0x1b5/0x7f6
[ 7004.651102][   T73] 
[ 7004.652947][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7004.652947][   T73]      netdev_get_by_index+0x5e/0x80
[ 7004.652947][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7004.652947][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7004.652947][   T73]      ip6_route_add+0x1c/0x140
[ 7004.652947][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7004.652947][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7004.652947][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7004.652947][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7004.652947][   T73]      netlink_rcv_skb+0x130/0x360
[ 7004.652947][   T73]      netlink_unicast+0x449/0x710
[ 7004.652947][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7004.652947][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7004.652947][   T73]      ___sys_sendmsg+0xee/0x170
[ 7004.652947][   T73]      __sys_sendmsg+0xcd/0x170
[ 7004.652947][   T73]      do_syscall_64+0xc6/0x1e0
[ 7004.652947][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7004.652947][   T73] 
[ 7004.655254][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7004.655254][   T73]      netdev_get_by_index+0x5e/0x80
[ 7004.655254][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7004.655254][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7004.655254][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7004.655254][   T73]      ipv6_add_addr+0x411/0x2000
[ 7004.655254][   T73]      inet6_addr_add+0x30e/0xa40
[ 7004.655254][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7004.655254][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7004.655254][   T73]      netlink_rcv_skb+0x130/0x360
[ 7004.655254][   T73]      netlink_unicast+0x449/0x710
[ 7004.655254][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7004.655254][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7004.655254][   T73]      ___sys_sendmsg+0xee/0x170
[ 7004.655254][   T73]      __sys_sendmsg+0xcd/0x170
[ 7004.655254][   T73]      do_syscall_64+0xc6/0x1e0
[ 7004.655254][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7004.655254][   T73] 
[ 7004.657518][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7004.657518][   T73]      netdev_get_by_index+0x5e/0x80
[ 7004.657518][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7004.657518][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7004.657518][   T73]      ip6_route_add+0x1c/0x140
[ 7004.657518][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7004.657518][   T73]      addrconf_add_dev+0xe2/0x170
[ 7004.657518][   T73]      inet6_addr_add+0x12f/0xa40
[ 7004.657518][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7004.657518][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7004.657518][   T73]      netlink_rcv_skb+0x130/0x360
[ 7004.657518][   T73]      netlink_unicast+0x449/0x710
[ 7004.657518][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7004.657518][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7004.657518][   T73]      ___sys_sendmsg+0xee/0x170
[ 7004.657518][   T73]      __sys_sendmsg+0xcd/0x170
[ 7004.657518][   T73]      do_syscall_64+0xc6/0x1e0
[ 7004.657518][   T73] 
[ 7004.659617][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7004.659617][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7004.659617][   T73]      ipv6_find_idev+0x102/0x170
[ 7004.659617][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7004.659617][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7004.659617][   T73]      netlink_rcv_skb+0x130/0x360
[ 7004.659617][   T73]      netlink_unicast+0x449/0x710
[ 7004.659617][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7004.659617][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7004.659617][   T73]      ___sys_sendmsg+0xee/0x170
[ 7004.659617][   T73]      __sys_sendmsg+0xcd/0x170
[ 7004.659617][   T73]      do_syscall_64+0xc6/0x1e0
[ 7004.659617][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7004.659617][   T73] 
[ 7004.661426][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7004.661426][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7004.661426][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7004.661426][   T73]      ipv6_find_idev+0x102/0x170
[ 7004.661426][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7004.661426][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7004.661426][   T73]      netlink_rcv_skb+0x130/0x360
[ 7004.661426][   T73]      netlink_unicast+0x449/0x710
[ 7004.661426][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7004.661426][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7004.661426][   T73]      ___sys_sendmsg+0xee/0x170
[ 7004.661426][   T73]      __sys_sendmsg+0xcd/0x170
[ 7004.661426][   T73]      do_syscall_64+0xc6/0x1e0
[ 7004.661426][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7004.661426][   T73] 
[ 7004.663370][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 7004.663646][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7004.663646][   T73]      netdev_get_by_index+0x5e/0x80
[ 7004.663646][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7004.663646][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7004.663646][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 7004.663646][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 7004.663646][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 7004.663646][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 7004.663646][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 7004.663646][   T73]      addrconf_dad_begin+0x310/0x670
[ 7004.663646][   T73]      addrconf_dad_work+0x10b/0xab0
[ 7004.663646][   T73]      process_one_work+0x84d/0x18a0
[ 7004.663646][   T73]      worker_thread+0x587/0xd30
[ 7004.663646][   T73]      kthread+0x28a/0x350
[ 7004.663646][   T73]      ret_from_fork+0x31/0x70
[ 7004.663646][   T73]      ret_from_fork_asm+0x1a/0x30
[ 7004.663646][   T73] 
[ 7004.665827][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7004.665827][   T73]      netdev_get_by_index+0x5e/0x80
[ 7004.665827][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7004.665827][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7004.665827][   T73]      ip6_route_add+0x1c/0x140
[ 7004.665827][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7004.665827][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7004.665827][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7004.665827][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7004.665827][   T73]      netlink_rcv_skb+0x130/0x360
[ 7004.665827][   T73]      netlink_unicast+0x449/0x710
[ 7004.665827][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7004.665827][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7004.665827][   T73]      ___sys_sendmsg+0xee/0x170
[ 7004.665827][   T73]      __sys_sendmsg+0xcd/0x170
[ 7004.665827][   T73]      do_syscall_64+0xc6/0x1e0
[ 7004.665827][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7004.665827][   T73] 
[ 7004.668009][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7004.668009][   T73]      netdev_get_by_index+0x5e/0x80
[ 7004.668009][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7004.668009][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7004.668009][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7004.668009][   T73]      ipv6_add_addr+0x411/0x2000
[ 7004.668009][   T73]      inet6_addr_add+0x30e/0xa40
[ 7004.668009][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7004.668009][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7004.668009][   T73]      netlink_rcv_skb+0x130/0x360
[ 7004.668009][   T73]      netlink_unicast+0x449/0x710
[ 7004.668009][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7004.668009][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7004.668009][   T73]      ___sys_sendmsg+0xee/0x170
[ 7004.668009][   T73]      __sys_sendmsg+0xcd/0x170
[ 7004.668009][   T73]      do_syscall_64+0xc6/0x1e0
[ 7004.668009][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7004.668009][   T73] 
[ 7004.670339][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7004.670339][   T73]      netdev_get_by_index+0x5e/0x80
[ 7004.670339][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7004.670339][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7004.670339][   T73]      ip6_route_add+0x1c/0x140
[ 7004.670339][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7004.670339][   T73]      addrconf_add_dev+0xe2/0x170
[ 7004.670339][   T73]      inet6_addr_add+0x12f/0xa40
[ 7004.670339][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7004.670339][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7004.670339][   T73]      netlink_rcv_skb+0x130/0x360
[ 7004.670339][   T73]      netlink_unicast+0x449/0x710
[ 7004.670339][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7004.670339][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7004.670339][   T73]      ___sys_sendmsg+0xee/0x170
[ 7004.670339][   T73]      __sys_sendmsg+0xcd/0x170
[ 7004.670339][   T73]      do_syscall_64+0xc6/0x1e0
[ 7004.670339][   T73] 
[ 7004.672562][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7004.672562][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7004.672562][   T73]      ipv6_find_idev+0x102/0x170
[ 7004.672562][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7004.672562][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7004.672562][   T73]      netlink_rcv_skb+0x130/0x360
[ 7004.672562][   T73]      netlink_unicast+0x449/0x710
[ 7004.672562][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7004.672562][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7004.672562][   T73]      ___sys_sendmsg+0xee/0x170
[ 7004.672562][   T73]      __sys_sendmsg+0xcd/0x170
[ 7004.672562][   T73]      do_syscall_64+0xc6/0x1e0
[ 7004.672562][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7004.672562][   T73] 
[ 7004.674302][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7004.674302][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7004.674302][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7004.674302][   T73]      ipv6_find_idev+0x102/0x170
[ 7004.674302][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7004.674302][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7004.674302][   T73]      netlink_rcv_skb+0x130/0x360
[ 7004.674302][   T73]      netlink_unicast+0x449/0x710
[ 7004.674302][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7004.674302][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7004.674302][   T73]      ___sys_sendmsg+0xee/0x170
[ 7004.674302][   T73]      __sys_sendmsg+0xcd/0x170
[ 7004.674302][   T73]      do_syscall_64+0xc6/0x1e0
[ 7004.674302][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7004.674302][   T73] 
[ 7014.871754][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 7014.872148][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7014.872148][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 7014.872148][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 7014.872148][   T73]      fib6_nh_init+0xa22/0x1580
[ 7014.872148][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7014.872148][   T73]      ip6_route_add+0x1c/0x140
[ 7014.872148][   T73]      inet6_rtm_newroute+0x104/0x110
[ 7014.872148][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7014.872148][   T73]      netlink_rcv_skb+0x130/0x360
[ 7014.872148][   T73]      netlink_unicast+0x449/0x710
[ 7014.872148][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7014.872148][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7014.872148][   T73]      ___sys_sendmsg+0xee/0x170
[ 7014.872148][   T73]      __sys_sendmsg+0xcd/0x170
[ 7014.872148][   T73]      do_syscall_64+0xc6/0x1e0
[ 7014.872148][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7014.872148][   T73] 
[ 7014.874065][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 7014.874065][   T73]      dst_init+0x84/0x4a0
[ 7014.874065][   T73]      dst_alloc+0x97/0x150
[ 7014.874065][   T73]      ip6_dst_alloc+0x23/0x90
[ 7014.874065][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 7014.874065][   T73]      ip6_pol_route+0x56f/0x840
[ 7014.874065][   T73]      fib6_rule_lookup+0x456/0x630
[ 7014.874065][   T73]      ip6_route_input+0x59c/0xa50
[ 7014.874065][   T73]      ipv6_rcv+0x397/0x810
[ 7014.874065][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 7014.874065][   T73]      process_backlog+0x101/0x620
[ 7014.874065][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 7014.874065][   T73]      net_rx_action+0x495/0xbe0
[ 7014.874065][   T73]      __do_softirq+0x1b5/0x7f6
[ 7014.874065][   T73] 
[ 7014.875712][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7014.875712][   T73]      netdev_get_by_index+0x5e/0x80
[ 7014.875712][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7014.875712][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7014.875712][   T73]      ip6_route_add+0x1c/0x140
[ 7014.875712][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7014.875712][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7014.875712][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7014.875712][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7014.875712][   T73]      netlink_rcv_skb+0x130/0x360
[ 7014.875712][   T73]      netlink_unicast+0x449/0x710
[ 7014.875712][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7014.875712][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7014.875712][   T73]      ___sys_sendmsg+0xee/0x170
[ 7014.875712][   T73]      __sys_sendmsg+0xcd/0x170
[ 7014.875712][   T73]      do_syscall_64+0xc6/0x1e0
[ 7014.875712][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7014.875712][   T73] 
[ 7014.877716][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7014.877716][   T73]      netdev_get_by_index+0x5e/0x80
[ 7014.877716][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7014.877716][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7014.877716][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7014.877716][   T73]      ipv6_add_addr+0x411/0x2000
[ 7014.877716][   T73]      inet6_addr_add+0x30e/0xa40
[ 7014.877716][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7014.877716][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7014.877716][   T73]      netlink_rcv_skb+0x130/0x360
[ 7014.877716][   T73]      netlink_unicast+0x449/0x710
[ 7014.877716][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7014.877716][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7014.877716][   T73]      ___sys_sendmsg+0xee/0x170
[ 7014.877716][   T73]      __sys_sendmsg+0xcd/0x170
[ 7014.877716][   T73]      do_syscall_64+0xc6/0x1e0
[ 7014.877716][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7014.877716][   T73] 
[ 7014.879719][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7014.879719][   T73]      netdev_get_by_index+0x5e/0x80
[ 7014.879719][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7014.879719][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7014.879719][   T73]      ip6_route_add+0x1c/0x140
[ 7014.879719][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7014.879719][   T73]      addrconf_add_dev+0xe2/0x170
[ 7014.879719][   T73]      inet6_addr_add+0x12f/0xa40
[ 7014.879719][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7014.879719][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7014.879719][   T73]      netlink_rcv_skb+0x130/0x360
[ 7014.879719][   T73]      netlink_unicast+0x449/0x710
[ 7014.879719][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7014.879719][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7014.879719][   T73]      ___sys_sendmsg+0xee/0x170
[ 7014.879719][   T73]      __sys_sendmsg+0xcd/0x170
[ 7014.879719][   T73]      do_syscall_64+0xc6/0x1e0
[ 7014.879719][   T73] 
[ 7014.881683][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7014.881683][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7014.881683][   T73]      ipv6_find_idev+0x102/0x170
[ 7014.881683][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7014.881683][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7014.881683][   T73]      netlink_rcv_skb+0x130/0x360
[ 7014.881683][   T73]      netlink_unicast+0x449/0x710
[ 7014.881683][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7014.881683][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7014.881683][   T73]      ___sys_sendmsg+0xee/0x170
[ 7014.881683][   T73]      __sys_sendmsg+0xcd/0x170
[ 7014.881683][   T73]      do_syscall_64+0xc6/0x1e0
[ 7014.881683][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7014.881683][   T73] 
[ 7014.883269][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7014.883269][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7014.883269][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7014.883269][   T73]      ipv6_find_idev+0x102/0x170
[ 7014.883269][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7014.883269][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7014.883269][   T73]      netlink_rcv_skb+0x130/0x360
[ 7014.883269][   T73]      netlink_unicast+0x449/0x710
[ 7014.883269][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7014.883269][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7014.883269][   T73]      ___sys_sendmsg+0xee/0x170
[ 7014.883269][   T73]      __sys_sendmsg+0xcd/0x170
[ 7014.883269][   T73]      do_syscall_64+0xc6/0x1e0
[ 7014.883269][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7014.883269][   T73] 
[ 7014.884968][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 7014.885251][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7014.885251][   T73]      netdev_get_by_index+0x5e/0x80
[ 7014.885251][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7014.885251][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7014.885251][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 7014.885251][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 7014.885251][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 7014.885251][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 7014.885251][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 7014.885251][   T73]      addrconf_dad_begin+0x310/0x670
[ 7014.885251][   T73]      addrconf_dad_work+0x10b/0xab0
[ 7014.885251][   T73]      process_one_work+0x84d/0x18a0
[ 7014.885251][   T73]      worker_thread+0x587/0xd30
[ 7014.885251][   T73]      kthread+0x28a/0x350
[ 7014.885251][   T73]      ret_from_fork+0x31/0x70
[ 7014.885251][   T73]      ret_from_fork_asm+0x1a/0x30
[ 7014.885251][   T73] 
[ 7014.887183][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7014.887183][   T73]      netdev_get_by_index+0x5e/0x80
[ 7014.887183][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7014.887183][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7014.887183][   T73]      ip6_route_add+0x1c/0x140
[ 7014.887183][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7014.887183][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7014.887183][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7014.887183][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7014.887183][   T73]      netlink_rcv_skb+0x130/0x360
[ 7014.887183][   T73]      netlink_unicast+0x449/0x710
[ 7014.887183][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7014.887183][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7014.887183][   T73]      ___sys_sendmsg+0xee/0x170
[ 7014.887183][   T73]      __sys_sendmsg+0xcd/0x170
[ 7014.887183][   T73]      do_syscall_64+0xc6/0x1e0
[ 7014.887183][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7014.887183][   T73] 
[ 7014.889205][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7014.889205][   T73]      netdev_get_by_index+0x5e/0x80
[ 7014.889205][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7014.889205][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7014.889205][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7014.889205][   T73]      ipv6_add_addr+0x411/0x2000
[ 7014.889205][   T73]      inet6_addr_add+0x30e/0xa40
[ 7014.889205][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7014.889205][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7014.889205][   T73]      netlink_rcv_skb+0x130/0x360
[ 7014.889205][   T73]      netlink_unicast+0x449/0x710
[ 7014.889205][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7014.889205][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7014.889205][   T73]      ___sys_sendmsg+0xee/0x170
[ 7014.889205][   T73]      __sys_sendmsg+0xcd/0x170
[ 7014.889205][   T73]      do_syscall_64+0xc6/0x1e0
[ 7014.889205][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7014.889205][   T73] 
[ 7014.891239][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7014.891239][   T73]      netdev_get_by_index+0x5e/0x80
[ 7014.891239][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7014.891239][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7014.891239][   T73]      ip6_route_add+0x1c/0x140
[ 7014.891239][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7014.891239][   T73]      addrconf_add_dev+0xe2/0x170
[ 7014.891239][   T73]      inet6_addr_add+0x12f/0xa40
[ 7014.891239][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7014.891239][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7014.891239][   T73]      netlink_rcv_skb+0x130/0x360
[ 7014.891239][   T73]      netlink_unicast+0x449/0x710
[ 7014.891239][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7014.891239][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7014.891239][   T73]      ___sys_sendmsg+0xee/0x170
[ 7014.891239][   T73]      __sys_sendmsg+0xcd/0x170
[ 7014.891239][   T73]      do_syscall_64+0xc6/0x1e0
[ 7014.891239][   T73] 
[ 7014.893227][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7014.893227][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7014.893227][   T73]      ipv6_find_idev+0x102/0x170
[ 7014.893227][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7014.893227][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7014.893227][   T73]      netlink_rcv_skb+0x130/0x360
[ 7014.893227][   T73]      netlink_unicast+0x449/0x710
[ 7014.893227][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7014.893227][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7014.893227][   T73]      ___sys_sendmsg+0xee/0x170
[ 7014.893227][   T73]      __sys_sendmsg+0xcd/0x170
[ 7014.893227][   T73]      do_syscall_64+0xc6/0x1e0
[ 7014.893227][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7014.893227][   T73] 
[ 7014.894781][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7014.894781][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7014.894781][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7014.894781][   T73]      ipv6_find_idev+0x102/0x170
[ 7014.894781][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7014.894781][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7014.894781][   T73]      netlink_rcv_skb+0x130/0x360
[ 7014.894781][   T73]      netlink_unicast+0x449/0x710
[ 7014.894781][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7014.894781][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7014.894781][   T73]      ___sys_sendmsg+0xee/0x170
[ 7014.894781][   T73]      __sys_sendmsg+0xcd/0x170
[ 7014.894781][   T73]      do_syscall_64+0xc6/0x1e0
[ 7014.894781][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7014.894781][   T73] 
[ 7014.896556][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 7014.896847][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7014.896847][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 7014.896847][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 7014.896847][   T73]      fib6_nh_init+0xa22/0x1580
[ 7014.896847][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7014.896847][   T73]      ip6_route_add+0x1c/0x140
[ 7014.896847][   T73]      inet6_rtm_newroute+0x104/0x110
[ 7014.896847][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7014.896847][   T73]      netlink_rcv_skb+0x130/0x360
[ 7014.896847][   T73]      netlink_unicast+0x449/0x710
[ 7014.896847][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7014.896847][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7014.896847][   T73]      ___sys_sendmsg+0xee/0x170
[ 7014.896847][   T73]      __sys_sendmsg+0xcd/0x170
[ 7014.896847][   T73]      do_syscall_64+0xc6/0x1e0
[ 7014.896847][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7014.896847][   T73] 
[ 7014.899018][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 7014.899018][   T73]      dst_init+0x84/0x4a0
[ 7014.899018][   T73]      dst_alloc+0x97/0x150
[ 7014.899018][   T73]      ip6_dst_alloc+0x23/0x90
[ 7014.899018][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 7014.899018][   T73]      ip6_pol_route+0x56f/0x840
[ 7014.899018][   T73]      fib6_rule_lookup+0x456/0x630
[ 7014.899018][   T73]      ip6_route_input+0x59c/0xa50
[ 7014.899018][   T73]      ipv6_rcv+0x397/0x810
[ 7014.899018][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 7014.899018][   T73]      process_backlog+0x101/0x620
[ 7014.899018][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 7014.899018][   T73]      net_rx_action+0x495/0xbe0
[ 7014.899018][   T73]      __do_softirq+0x1b5/0x7f6
[ 7014.899018][   T73] 
[ 7014.900847][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7014.900847][   T73]      netdev_get_by_index+0x5e/0x80
[ 7014.900847][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7014.900847][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7014.900847][   T73]      ip6_route_add+0x1c/0x140
[ 7014.900847][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7014.900847][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7014.900847][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7014.900847][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7014.900847][   T73]      netlink_rcv_skb+0x130/0x360
[ 7014.900847][   T73]      netlink_unicast+0x449/0x710
[ 7014.900847][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7014.900847][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7014.900847][   T73]      ___sys_sendmsg+0xee/0x170
[ 7014.900847][   T73]      __sys_sendmsg+0xcd/0x170
[ 7014.900847][   T73]      do_syscall_64+0xc6/0x1e0
[ 7014.900847][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7014.900847][   T73] 
[ 7014.903641][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7014.903641][   T73]      netdev_get_by_index+0x5e/0x80
[ 7014.903641][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7014.903641][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7014.903641][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7014.903641][   T73]      ipv6_add_addr+0x411/0x2000
[ 7014.903641][   T73]      inet6_addr_add+0x30e/0xa40
[ 7014.903641][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7014.903641][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7014.903641][   T73]      netlink_rcv_skb+0x130/0x360
[ 7014.903641][   T73]      netlink_unicast+0x449/0x710
[ 7014.903641][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7014.903641][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7014.903641][   T73]      ___sys_sendmsg+0xee/0x170
[ 7014.903641][   T73]      __sys_sendmsg+0xcd/0x170
[ 7014.903641][   T73]      do_syscall_64+0xc6/0x1e0
[ 7014.903641][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7014.903641][   T73] 
[ 7014.905951][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7014.905951][   T73]      netdev_get_by_index+0x5e/0x80
[ 7014.905951][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7014.905951][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7014.905951][   T73]      ip6_route_add+0x1c/0x140
[ 7014.905951][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7014.905951][   T73]      addrconf_add_dev+0xe2/0x170
[ 7014.905951][   T73]      inet6_addr_add+0x12f/0xa40
[ 7014.905951][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7014.905951][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7014.905951][   T73]      netlink_rcv_skb+0x130/0x360
[ 7014.905951][   T73]      netlink_unicast+0x449/0x710
[ 7014.905951][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7014.905951][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7014.905951][   T73]      ___sys_sendmsg+0xee/0x170
[ 7014.905951][   T73]      __sys_sendmsg+0xcd/0x170
[ 7014.905951][   T73]      do_syscall_64+0xc6/0x1e0
[ 7014.905951][   T73] 
[ 7014.908786][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7014.908786][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7014.908786][   T73]      ipv6_find_idev+0x102/0x170
[ 7014.908786][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7014.908786][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7014.908786][   T73]      netlink_rcv_skb+0x130/0x360
[ 7014.908786][   T73]      netlink_unicast+0x449/0x710
[ 7014.908786][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7014.908786][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7014.908786][   T73]      ___sys_sendmsg+0xee/0x170
[ 7014.908786][   T73]      __sys_sendmsg+0xcd/0x170
[ 7014.908786][   T73]      do_syscall_64+0xc6/0x1e0
[ 7014.908786][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7014.908786][   T73] 
[ 7014.910500][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7014.910500][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7014.910500][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7014.910500][   T73]      ipv6_find_idev+0x102/0x170
[ 7014.910500][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7014.910500][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7014.910500][   T73]      netlink_rcv_skb+0x130/0x360
[ 7014.910500][   T73]      netlink_unicast+0x449/0x710
[ 7014.910500][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7014.910500][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7014.910500][   T73]      ___sys_sendmsg+0xee/0x170
[ 7014.910500][   T73]      __sys_sendmsg+0xcd/0x170
[ 7014.910500][   T73]      do_syscall_64+0xc6/0x1e0
[ 7014.910500][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7014.910500][   T73] 
[ 7014.912425][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 7014.913150][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7014.913150][   T73]      netdev_get_by_index+0x5e/0x80
[ 7014.913150][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7014.913150][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7014.913150][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 7014.913150][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 7014.913150][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 7014.913150][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 7014.913150][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 7014.913150][   T73]      addrconf_dad_begin+0x310/0x670
[ 7014.913150][   T73]      addrconf_dad_work+0x10b/0xab0
[ 7014.913150][   T73]      process_one_work+0x84d/0x18a0
[ 7014.913150][   T73]      worker_thread+0x587/0xd30
[ 7014.913150][   T73]      kthread+0x28a/0x350
[ 7014.913150][   T73]      ret_from_fork+0x31/0x70
[ 7014.913150][   T73]      ret_from_fork_asm+0x1a/0x30
[ 7014.913150][   T73] 
[ 7014.915080][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7014.915080][   T73]      netdev_get_by_index+0x5e/0x80
[ 7014.915080][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7014.915080][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7014.915080][   T73]      ip6_route_add+0x1c/0x140
[ 7014.915080][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7014.915080][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7014.915080][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7014.915080][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7014.915080][   T73]      netlink_rcv_skb+0x130/0x360
[ 7014.915080][   T73]      netlink_unicast+0x449/0x710
[ 7014.915080][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7014.915080][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7014.915080][   T73]      ___sys_sendmsg+0xee/0x170
[ 7014.915080][   T73]      __sys_sendmsg+0xcd/0x170
[ 7014.915080][   T73]      do_syscall_64+0xc6/0x1e0
[ 7014.915080][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7014.915080][   T73] 
[ 7014.917192][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7014.917192][   T73]      netdev_get_by_index+0x5e/0x80
[ 7014.917192][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7014.917192][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7014.917192][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7014.917192][   T73]      ipv6_add_addr+0x411/0x2000
[ 7014.917192][   T73]      inet6_addr_add+0x30e/0xa40
[ 7014.917192][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7014.917192][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7014.917192][   T73]      netlink_rcv_skb+0x130/0x360
[ 7014.917192][   T73]      netlink_unicast+0x449/0x710
[ 7014.917192][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7014.917192][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7014.917192][   T73]      ___sys_sendmsg+0xee/0x170
[ 7014.917192][   T73]      __sys_sendmsg+0xcd/0x170
[ 7014.917192][   T73]      do_syscall_64+0xc6/0x1e0
[ 7014.917192][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7014.917192][   T73] 
[ 7014.919421][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7014.919421][   T73]      netdev_get_by_index+0x5e/0x80
[ 7014.919421][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7014.919421][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7014.919421][   T73]      ip6_route_add+0x1c/0x140
[ 7014.919421][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7014.919421][   T73]      addrconf_add_dev+0xe2/0x170
[ 7014.919421][   T73]      inet6_addr_add+0x12f/0xa40
[ 7014.919421][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7014.919421][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7014.919421][   T73]      netlink_rcv_skb+0x130/0x360
[ 7014.919421][   T73]      netlink_unicast+0x449/0x710
[ 7014.919421][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7014.919421][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7014.919421][   T73]      ___sys_sendmsg+0xee/0x170
[ 7014.919421][   T73]      __sys_sendmsg+0xcd/0x170
[ 7014.919421][   T73]      do_syscall_64+0xc6/0x1e0
[ 7014.919421][   T73] 
[ 7014.924837][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7014.924837][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7014.924837][   T73]      ipv6_find_idev+0x102/0x170
[ 7014.924837][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7014.924837][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7014.924837][   T73]      netlink_rcv_skb+0x130/0x360
[ 7014.924837][   T73]      netlink_unicast+0x449/0x710
[ 7014.924837][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7014.924837][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7014.924837][   T73]      ___sys_sendmsg+0xee/0x170
[ 7014.924837][   T73]      __sys_sendmsg+0xcd/0x170
[ 7014.924837][   T73]      do_syscall_64+0xc6/0x1e0
[ 7014.924837][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7014.924837][   T73] 
[ 7014.926558][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7014.926558][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7014.926558][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7014.926558][   T73]      ipv6_find_idev+0x102/0x170
[ 7014.926558][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7014.926558][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7014.926558][   T73]      netlink_rcv_skb+0x130/0x360
[ 7014.926558][   T73]      netlink_unicast+0x449/0x710
[ 7014.926558][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7014.926558][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7014.926558][   T73]      ___sys_sendmsg+0xee/0x170
[ 7014.926558][   T73]      __sys_sendmsg+0xcd/0x170
[ 7014.926558][   T73]      do_syscall_64+0xc6/0x1e0
[ 7014.926558][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7014.926558][   T73] 
[ 7025.111745][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 7025.112193][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7025.112193][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 7025.112193][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 7025.112193][   T73]      fib6_nh_init+0xa22/0x1580
[ 7025.112193][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7025.112193][   T73]      ip6_route_add+0x1c/0x140
[ 7025.112193][   T73]      inet6_rtm_newroute+0x104/0x110
[ 7025.112193][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7025.112193][   T73]      netlink_rcv_skb+0x130/0x360
[ 7025.112193][   T73]      netlink_unicast+0x449/0x710
[ 7025.112193][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7025.112193][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7025.112193][   T73]      ___sys_sendmsg+0xee/0x170
[ 7025.112193][   T73]      __sys_sendmsg+0xcd/0x170
[ 7025.112193][   T73]      do_syscall_64+0xc6/0x1e0
[ 7025.112193][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7025.112193][   T73] 
[ 7025.114085][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 7025.114085][   T73]      dst_init+0x84/0x4a0
[ 7025.114085][   T73]      dst_alloc+0x97/0x150
[ 7025.114085][   T73]      ip6_dst_alloc+0x23/0x90
[ 7025.114085][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 7025.114085][   T73]      ip6_pol_route+0x56f/0x840
[ 7025.114085][   T73]      fib6_rule_lookup+0x456/0x630
[ 7025.114085][   T73]      ip6_route_input+0x59c/0xa50
[ 7025.114085][   T73]      ipv6_rcv+0x397/0x810
[ 7025.114085][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 7025.114085][   T73]      process_backlog+0x101/0x620
[ 7025.114085][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 7025.114085][   T73]      net_rx_action+0x495/0xbe0
[ 7025.114085][   T73]      __do_softirq+0x1b5/0x7f6
[ 7025.114085][   T73] 
[ 7025.115713][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7025.115713][   T73]      netdev_get_by_index+0x5e/0x80
[ 7025.115713][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7025.115713][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7025.115713][   T73]      ip6_route_add+0x1c/0x140
[ 7025.115713][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7025.115713][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7025.115713][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7025.115713][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7025.115713][   T73]      netlink_rcv_skb+0x130/0x360
[ 7025.115713][   T73]      netlink_unicast+0x449/0x710
[ 7025.115713][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7025.115713][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7025.115713][   T73]      ___sys_sendmsg+0xee/0x170
[ 7025.115713][   T73]      __sys_sendmsg+0xcd/0x170
[ 7025.115713][   T73]      do_syscall_64+0xc6/0x1e0
[ 7025.115713][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7025.115713][   T73] 
[ 7025.117808][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7025.117808][   T73]      netdev_get_by_index+0x5e/0x80
[ 7025.117808][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7025.117808][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7025.117808][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7025.117808][   T73]      ipv6_add_addr+0x411/0x2000
[ 7025.117808][   T73]      inet6_addr_add+0x30e/0xa40
[ 7025.117808][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7025.117808][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7025.117808][   T73]      netlink_rcv_skb+0x130/0x360
[ 7025.117808][   T73]      netlink_unicast+0x449/0x710
[ 7025.117808][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7025.117808][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7025.117808][   T73]      ___sys_sendmsg+0xee/0x170
[ 7025.117808][   T73]      __sys_sendmsg+0xcd/0x170
[ 7025.117808][   T73]      do_syscall_64+0xc6/0x1e0
[ 7025.117808][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7025.117808][   T73] 
[ 7025.119809][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7025.119809][   T73]      netdev_get_by_index+0x5e/0x80
[ 7025.119809][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7025.119809][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7025.119809][   T73]      ip6_route_add+0x1c/0x140
[ 7025.119809][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7025.119809][   T73]      addrconf_add_dev+0xe2/0x170
[ 7025.119809][   T73]      inet6_addr_add+0x12f/0xa40
[ 7025.119809][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7025.119809][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7025.119809][   T73]      netlink_rcv_skb+0x130/0x360
[ 7025.119809][   T73]      netlink_unicast+0x449/0x710
[ 7025.119809][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7025.119809][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7025.119809][   T73]      ___sys_sendmsg+0xee/0x170
[ 7025.119809][   T73]      __sys_sendmsg+0xcd/0x170
[ 7025.119809][   T73]      do_syscall_64+0xc6/0x1e0
[ 7025.119809][   T73] 
[ 7025.122424][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7025.122424][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7025.122424][   T73]      ipv6_find_idev+0x102/0x170
[ 7025.122424][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7025.122424][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7025.122424][   T73]      netlink_rcv_skb+0x130/0x360
[ 7025.122424][   T73]      netlink_unicast+0x449/0x710
[ 7025.122424][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7025.122424][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7025.122424][   T73]      ___sys_sendmsg+0xee/0x170
[ 7025.122424][   T73]      __sys_sendmsg+0xcd/0x170
[ 7025.122424][   T73]      do_syscall_64+0xc6/0x1e0
[ 7025.122424][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7025.122424][   T73] 
[ 7025.123964][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7025.123964][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7025.123964][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7025.123964][   T73]      ipv6_find_idev+0x102/0x170
[ 7025.123964][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7025.123964][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7025.123964][   T73]      netlink_rcv_skb+0x130/0x360
[ 7025.123964][   T73]      netlink_unicast+0x449/0x710
[ 7025.123964][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7025.123964][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7025.123964][   T73]      ___sys_sendmsg+0xee/0x170
[ 7025.123964][   T73]      __sys_sendmsg+0xcd/0x170
[ 7025.123964][   T73]      do_syscall_64+0xc6/0x1e0
[ 7025.123964][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7025.123964][   T73] 
[ 7025.125652][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 7025.125931][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7025.125931][   T73]      netdev_get_by_index+0x5e/0x80
[ 7025.125931][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7025.125931][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7025.125931][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 7025.125931][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 7025.125931][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 7025.125931][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 7025.125931][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 7025.125931][   T73]      addrconf_dad_begin+0x310/0x670
[ 7025.125931][   T73]      addrconf_dad_work+0x10b/0xab0
[ 7025.125931][   T73]      process_one_work+0x84d/0x18a0
[ 7025.125931][   T73]      worker_thread+0x587/0xd30
[ 7025.125931][   T73]      kthread+0x28a/0x350
[ 7025.125931][   T73]      ret_from_fork+0x31/0x70
[ 7025.125931][   T73]      ret_from_fork_asm+0x1a/0x30
[ 7025.125931][   T73] 
[ 7025.127833][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7025.127833][   T73]      netdev_get_by_index+0x5e/0x80
[ 7025.127833][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7025.127833][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7025.127833][   T73]      ip6_route_add+0x1c/0x140
[ 7025.127833][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7025.127833][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7025.127833][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7025.127833][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7025.127833][   T73]      netlink_rcv_skb+0x130/0x360
[ 7025.127833][   T73]      netlink_unicast+0x449/0x710
[ 7025.127833][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7025.127833][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7025.127833][   T73]      ___sys_sendmsg+0xee/0x170
[ 7025.127833][   T73]      __sys_sendmsg+0xcd/0x170
[ 7025.127833][   T73]      do_syscall_64+0xc6/0x1e0
[ 7025.127833][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7025.127833][   T73] 
[ 7025.129822][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7025.129822][   T73]      netdev_get_by_index+0x5e/0x80
[ 7025.129822][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7025.129822][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7025.129822][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7025.129822][   T73]      ipv6_add_addr+0x411/0x2000
[ 7025.129822][   T73]      inet6_addr_add+0x30e/0xa40
[ 7025.129822][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7025.129822][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7025.129822][   T73]      netlink_rcv_skb+0x130/0x360
[ 7025.129822][   T73]      netlink_unicast+0x449/0x710
[ 7025.129822][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7025.129822][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7025.129822][   T73]      ___sys_sendmsg+0xee/0x170
[ 7025.129822][   T73]      __sys_sendmsg+0xcd/0x170
[ 7025.129822][   T73]      do_syscall_64+0xc6/0x1e0
[ 7025.129822][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7025.129822][   T73] 
[ 7025.131824][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7025.131824][   T73]      netdev_get_by_index+0x5e/0x80
[ 7025.131824][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7025.131824][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7025.131824][   T73]      ip6_route_add+0x1c/0x140
[ 7025.131824][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7025.131824][   T73]      addrconf_add_dev+0xe2/0x170
[ 7025.131824][   T73]      inet6_addr_add+0x12f/0xa40
[ 7025.131824][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7025.131824][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7025.131824][   T73]      netlink_rcv_skb+0x130/0x360
[ 7025.131824][   T73]      netlink_unicast+0x449/0x710
[ 7025.131824][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7025.131824][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7025.131824][   T73]      ___sys_sendmsg+0xee/0x170
[ 7025.131824][   T73]      __sys_sendmsg+0xcd/0x170
[ 7025.131824][   T73]      do_syscall_64+0xc6/0x1e0
[ 7025.131824][   T73] 
[ 7025.133788][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7025.133788][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7025.133788][   T73]      ipv6_find_idev+0x102/0x170
[ 7025.133788][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7025.133788][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7025.133788][   T73]      netlink_rcv_skb+0x130/0x360
[ 7025.133788][   T73]      netlink_unicast+0x449/0x710
[ 7025.133788][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7025.133788][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7025.133788][   T73]      ___sys_sendmsg+0xee/0x170
[ 7025.133788][   T73]      __sys_sendmsg+0xcd/0x170
[ 7025.133788][   T73]      do_syscall_64+0xc6/0x1e0
[ 7025.133788][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7025.133788][   T73] 
[ 7025.135388][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7025.135388][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7025.135388][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7025.135388][   T73]      ipv6_find_idev+0x102/0x170
[ 7025.135388][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7025.135388][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7025.135388][   T73]      netlink_rcv_skb+0x130/0x360
[ 7025.135388][   T73]      netlink_unicast+0x449/0x710
[ 7025.135388][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7025.135388][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7025.135388][   T73]      ___sys_sendmsg+0xee/0x170
[ 7025.135388][   T73]      __sys_sendmsg+0xcd/0x170
[ 7025.135388][   T73]      do_syscall_64+0xc6/0x1e0
[ 7025.135388][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7025.135388][   T73] 
[ 7025.137070][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 7025.137338][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7025.137338][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 7025.137338][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 7025.137338][   T73]      fib6_nh_init+0xa22/0x1580
[ 7025.137338][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7025.137338][   T73]      ip6_route_add+0x1c/0x140
[ 7025.137338][   T73]      inet6_rtm_newroute+0x104/0x110
[ 7025.137338][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7025.137338][   T73]      netlink_rcv_skb+0x130/0x360
[ 7025.137338][   T73]      netlink_unicast+0x449/0x710
[ 7025.137338][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7025.137338][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7025.137338][   T73]      ___sys_sendmsg+0xee/0x170
[ 7025.137338][   T73]      __sys_sendmsg+0xcd/0x170
[ 7025.137338][   T73]      do_syscall_64+0xc6/0x1e0
[ 7025.137338][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7025.137338][   T73] 
[ 7025.139399][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 7025.139399][   T73]      dst_init+0x84/0x4a0
[ 7025.139399][   T73]      dst_alloc+0x97/0x150
[ 7025.139399][   T73]      ip6_dst_alloc+0x23/0x90
[ 7025.139399][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 7025.139399][   T73]      ip6_pol_route+0x56f/0x840
[ 7025.139399][   T73]      fib6_rule_lookup+0x456/0x630
[ 7025.139399][   T73]      ip6_route_input+0x59c/0xa50
[ 7025.139399][   T73]      ipv6_rcv+0x397/0x810
[ 7025.139399][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 7025.139399][   T73]      process_backlog+0x101/0x620
[ 7025.139399][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 7025.139399][   T73]      net_rx_action+0x495/0xbe0
[ 7025.139399][   T73]      __do_softirq+0x1b5/0x7f6
[ 7025.139399][   T73] 
[ 7025.141213][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7025.141213][   T73]      netdev_get_by_index+0x5e/0x80
[ 7025.141213][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7025.141213][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7025.141213][   T73]      ip6_route_add+0x1c/0x140
[ 7025.141213][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7025.141213][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7025.141213][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7025.141213][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7025.141213][   T73]      netlink_rcv_skb+0x130/0x360
[ 7025.141213][   T73]      netlink_unicast+0x449/0x710
[ 7025.141213][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7025.141213][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7025.141213][   T73]      ___sys_sendmsg+0xee/0x170
[ 7025.141213][   T73]      __sys_sendmsg+0xcd/0x170
[ 7025.141213][   T73]      do_syscall_64+0xc6/0x1e0
[ 7025.141213][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7025.141213][   T73] 
[ 7025.143523][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7025.143523][   T73]      netdev_get_by_index+0x5e/0x80
[ 7025.143523][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7025.143523][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7025.143523][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7025.143523][   T73]      ipv6_add_addr+0x411/0x2000
[ 7025.143523][   T73]      inet6_addr_add+0x30e/0xa40
[ 7025.143523][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7025.143523][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7025.143523][   T73]      netlink_rcv_skb+0x130/0x360
[ 7025.143523][   T73]      netlink_unicast+0x449/0x710
[ 7025.143523][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7025.143523][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7025.143523][   T73]      ___sys_sendmsg+0xee/0x170
[ 7025.143523][   T73]      __sys_sendmsg+0xcd/0x170
[ 7025.143523][   T73]      do_syscall_64+0xc6/0x1e0
[ 7025.143523][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7025.143523][   T73] 
[ 7025.145774][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7025.145774][   T73]      netdev_get_by_index+0x5e/0x80
[ 7025.145774][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7025.145774][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7025.145774][   T73]      ip6_route_add+0x1c/0x140
[ 7025.145774][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7025.145774][   T73]      addrconf_add_dev+0xe2/0x170
[ 7025.145774][   T73]      inet6_addr_add+0x12f/0xa40
[ 7025.145774][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7025.145774][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7025.145774][   T73]      netlink_rcv_skb+0x130/0x360
[ 7025.145774][   T73]      netlink_unicast+0x449/0x710
[ 7025.145774][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7025.145774][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7025.145774][   T73]      ___sys_sendmsg+0xee/0x170
[ 7025.145774][   T73]      __sys_sendmsg+0xcd/0x170
[ 7025.145774][   T73]      do_syscall_64+0xc6/0x1e0
[ 7025.145774][   T73] 
[ 7025.147924][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7025.147924][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7025.147924][   T73]      ipv6_find_idev+0x102/0x170
[ 7025.147924][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7025.147924][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7025.147924][   T73]      netlink_rcv_skb+0x130/0x360
[ 7025.147924][   T73]      netlink_unicast+0x449/0x710
[ 7025.147924][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7025.147924][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7025.147924][   T73]      ___sys_sendmsg+0xee/0x170
[ 7025.147924][   T73]      __sys_sendmsg+0xcd/0x170
[ 7025.147924][   T73]      do_syscall_64+0xc6/0x1e0
[ 7025.147924][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7025.147924][   T73] 
[ 7025.149645][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7025.149645][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7025.149645][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7025.149645][   T73]      ipv6_find_idev+0x102/0x170
[ 7025.149645][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7025.149645][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7025.149645][   T73]      netlink_rcv_skb+0x130/0x360
[ 7025.149645][   T73]      netlink_unicast+0x449/0x710
[ 7025.149645][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7025.149645][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7025.149645][   T73]      ___sys_sendmsg+0xee/0x170
[ 7025.149645][   T73]      __sys_sendmsg+0xcd/0x170
[ 7025.149645][   T73]      do_syscall_64+0xc6/0x1e0
[ 7025.149645][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7025.149645][   T73] 
[ 7025.151620][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 7025.152336][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7025.152336][   T73]      netdev_get_by_index+0x5e/0x80
[ 7025.152336][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7025.152336][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7025.152336][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 7025.152336][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 7025.152336][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 7025.152336][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 7025.152336][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 7025.152336][   T73]      addrconf_dad_begin+0x310/0x670
[ 7025.152336][   T73]      addrconf_dad_work+0x10b/0xab0
[ 7025.152336][   T73]      process_one_work+0x84d/0x18a0
[ 7025.152336][   T73]      worker_thread+0x587/0xd30
[ 7025.152336][   T73]      kthread+0x28a/0x350
[ 7025.152336][   T73]      ret_from_fork+0x31/0x70
[ 7025.152336][   T73]      ret_from_fork_asm+0x1a/0x30
[ 7025.152336][   T73] 
[ 7025.154250][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7025.154250][   T73]      netdev_get_by_index+0x5e/0x80
[ 7025.154250][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7025.154250][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7025.154250][   T73]      ip6_route_add+0x1c/0x140
[ 7025.154250][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7025.154250][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7025.154250][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7025.154250][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7025.154250][   T73]      netlink_rcv_skb+0x130/0x360
[ 7025.154250][   T73]      netlink_unicast+0x449/0x710
[ 7025.154250][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7025.154250][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7025.154250][   T73]      ___sys_sendmsg+0xee/0x170
[ 7025.154250][   T73]      __sys_sendmsg+0xcd/0x170
[ 7025.154250][   T73]      do_syscall_64+0xc6/0x1e0
[ 7025.154250][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7025.154250][   T73] 
[ 7025.156365][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7025.156365][   T73]      netdev_get_by_index+0x5e/0x80
[ 7025.156365][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7025.156365][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7025.156365][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7025.156365][   T73]      ipv6_add_addr+0x411/0x2000
[ 7025.156365][   T73]      inet6_addr_add+0x30e/0xa40
[ 7025.156365][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7025.156365][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7025.156365][   T73]      netlink_rcv_skb+0x130/0x360
[ 7025.156365][   T73]      netlink_unicast+0x449/0x710
[ 7025.156365][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7025.156365][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7025.156365][   T73]      ___sys_sendmsg+0xee/0x170
[ 7025.156365][   T73]      __sys_sendmsg+0xcd/0x170
[ 7025.156365][   T73]      do_syscall_64+0xc6/0x1e0
[ 7025.156365][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7025.156365][   T73] 
[ 7025.158541][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7025.158541][   T73]      netdev_get_by_index+0x5e/0x80
[ 7025.158541][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7025.158541][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7025.158541][   T73]      ip6_route_add+0x1c/0x140
[ 7025.158541][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7025.158541][   T73]      addrconf_add_dev+0xe2/0x170
[ 7025.158541][   T73]      inet6_addr_add+0x12f/0xa40
[ 7025.158541][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7025.158541][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7025.158541][   T73]      netlink_rcv_skb+0x130/0x360
[ 7025.158541][   T73]      netlink_unicast+0x449/0x710
[ 7025.158541][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7025.158541][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7025.158541][   T73]      ___sys_sendmsg+0xee/0x170
[ 7025.158541][   T73]      __sys_sendmsg+0xcd/0x170
[ 7025.158541][   T73]      do_syscall_64+0xc6/0x1e0
[ 7025.158541][   T73] 
[ 7025.160766][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7025.160766][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7025.160766][   T73]      ipv6_find_idev+0x102/0x170
[ 7025.160766][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7025.160766][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7025.160766][   T73]      netlink_rcv_skb+0x130/0x360
[ 7025.160766][   T73]      netlink_unicast+0x449/0x710
[ 7025.160766][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7025.160766][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7025.160766][   T73]      ___sys_sendmsg+0xee/0x170
[ 7025.160766][   T73]      __sys_sendmsg+0xcd/0x170
[ 7025.160766][   T73]      do_syscall_64+0xc6/0x1e0
[ 7025.160766][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7025.160766][   T73] 
[ 7025.162494][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7025.162494][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7025.162494][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7025.162494][   T73]      ipv6_find_idev+0x102/0x170
[ 7025.162494][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7025.162494][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7025.162494][   T73]      netlink_rcv_skb+0x130/0x360
[ 7025.162494][   T73]      netlink_unicast+0x449/0x710
[ 7025.162494][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7025.162494][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7025.162494][   T73]      ___sys_sendmsg+0xee/0x170
[ 7025.162494][   T73]      __sys_sendmsg+0xcd/0x170
[ 7025.162494][   T73]      do_syscall_64+0xc6/0x1e0
[ 7025.162494][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7025.162494][   T73] 
[ 7035.191743][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 7035.192138][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7035.192138][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 7035.192138][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 7035.192138][   T73]      fib6_nh_init+0xa22/0x1580
[ 7035.192138][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7035.192138][   T73]      ip6_route_add+0x1c/0x140
[ 7035.192138][   T73]      inet6_rtm_newroute+0x104/0x110
[ 7035.192138][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7035.192138][   T73]      netlink_rcv_skb+0x130/0x360
[ 7035.192138][   T73]      netlink_unicast+0x449/0x710
[ 7035.192138][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7035.192138][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7035.192138][   T73]      ___sys_sendmsg+0xee/0x170
[ 7035.192138][   T73]      __sys_sendmsg+0xcd/0x170
[ 7035.192138][   T73]      do_syscall_64+0xc6/0x1e0
[ 7035.192138][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7035.192138][   T73] 
[ 7035.194036][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 7035.194036][   T73]      dst_init+0x84/0x4a0
[ 7035.194036][   T73]      dst_alloc+0x97/0x150
[ 7035.194036][   T73]      ip6_dst_alloc+0x23/0x90
[ 7035.194036][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 7035.194036][   T73]      ip6_pol_route+0x56f/0x840
[ 7035.194036][   T73]      fib6_rule_lookup+0x456/0x630
[ 7035.194036][   T73]      ip6_route_input+0x59c/0xa50
[ 7035.194036][   T73]      ipv6_rcv+0x397/0x810
[ 7035.194036][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 7035.194036][   T73]      process_backlog+0x101/0x620
[ 7035.194036][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 7035.194036][   T73]      net_rx_action+0x495/0xbe0
[ 7035.194036][   T73]      __do_softirq+0x1b5/0x7f6
[ 7035.194036][   T73] 
[ 7035.195680][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7035.195680][   T73]      netdev_get_by_index+0x5e/0x80
[ 7035.195680][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7035.195680][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7035.195680][   T73]      ip6_route_add+0x1c/0x140
[ 7035.195680][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7035.195680][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7035.195680][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7035.195680][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7035.195680][   T73]      netlink_rcv_skb+0x130/0x360
[ 7035.195680][   T73]      netlink_unicast+0x449/0x710
[ 7035.195680][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7035.195680][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7035.195680][   T73]      ___sys_sendmsg+0xee/0x170
[ 7035.195680][   T73]      __sys_sendmsg+0xcd/0x170
[ 7035.195680][   T73]      do_syscall_64+0xc6/0x1e0
[ 7035.195680][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7035.195680][   T73] 
[ 7035.197676][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7035.197676][   T73]      netdev_get_by_index+0x5e/0x80
[ 7035.197676][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7035.197676][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7035.197676][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7035.197676][   T73]      ipv6_add_addr+0x411/0x2000
[ 7035.197676][   T73]      inet6_addr_add+0x30e/0xa40
[ 7035.197676][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7035.197676][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7035.197676][   T73]      netlink_rcv_skb+0x130/0x360
[ 7035.197676][   T73]      netlink_unicast+0x449/0x710
[ 7035.197676][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7035.197676][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7035.197676][   T73]      ___sys_sendmsg+0xee/0x170
[ 7035.197676][   T73]      __sys_sendmsg+0xcd/0x170
[ 7035.197676][   T73]      do_syscall_64+0xc6/0x1e0
[ 7035.197676][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7035.197676][   T73] 
[ 7035.199663][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7035.199663][   T73]      netdev_get_by_index+0x5e/0x80
[ 7035.199663][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7035.199663][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7035.199663][   T73]      ip6_route_add+0x1c/0x140
[ 7035.199663][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7035.199663][   T73]      addrconf_add_dev+0xe2/0x170
[ 7035.199663][   T73]      inet6_addr_add+0x12f/0xa40
[ 7035.199663][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7035.199663][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7035.199663][   T73]      netlink_rcv_skb+0x130/0x360
[ 7035.199663][   T73]      netlink_unicast+0x449/0x710
[ 7035.199663][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7035.199663][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7035.199663][   T73]      ___sys_sendmsg+0xee/0x170
[ 7035.199663][   T73]      __sys_sendmsg+0xcd/0x170
[ 7035.199663][   T73]      do_syscall_64+0xc6/0x1e0
[ 7035.199663][   T73] 
[ 7035.201639][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7035.201639][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7035.201639][   T73]      ipv6_find_idev+0x102/0x170
[ 7035.201639][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7035.201639][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7035.201639][   T73]      netlink_rcv_skb+0x130/0x360
[ 7035.201639][   T73]      netlink_unicast+0x449/0x710
[ 7035.201639][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7035.201639][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7035.201639][   T73]      ___sys_sendmsg+0xee/0x170
[ 7035.201639][   T73]      __sys_sendmsg+0xcd/0x170
[ 7035.201639][   T73]      do_syscall_64+0xc6/0x1e0
[ 7035.201639][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7035.201639][   T73] 
[ 7035.203190][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7035.203190][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7035.203190][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7035.203190][   T73]      ipv6_find_idev+0x102/0x170
[ 7035.203190][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7035.203190][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7035.203190][   T73]      netlink_rcv_skb+0x130/0x360
[ 7035.203190][   T73]      netlink_unicast+0x449/0x710
[ 7035.203190][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7035.203190][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7035.203190][   T73]      ___sys_sendmsg+0xee/0x170
[ 7035.203190][   T73]      __sys_sendmsg+0xcd/0x170
[ 7035.203190][   T73]      do_syscall_64+0xc6/0x1e0
[ 7035.203190][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7035.203190][   T73] 
[ 7035.204865][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 7035.205151][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7035.205151][   T73]      netdev_get_by_index+0x5e/0x80
[ 7035.205151][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7035.205151][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7035.205151][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 7035.205151][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 7035.205151][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 7035.205151][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 7035.205151][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 7035.205151][   T73]      addrconf_dad_begin+0x310/0x670
[ 7035.205151][   T73]      addrconf_dad_work+0x10b/0xab0
[ 7035.205151][   T73]      process_one_work+0x84d/0x18a0
[ 7035.205151][   T73]      worker_thread+0x587/0xd30
[ 7035.205151][   T73]      kthread+0x28a/0x350
[ 7035.205151][   T73]      ret_from_fork+0x31/0x70
[ 7035.205151][   T73]      ret_from_fork_asm+0x1a/0x30
[ 7035.205151][   T73] 
[ 7035.207059][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7035.207059][   T73]      netdev_get_by_index+0x5e/0x80
[ 7035.207059][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7035.207059][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7035.207059][   T73]      ip6_route_add+0x1c/0x140
[ 7035.207059][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7035.207059][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7035.207059][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7035.207059][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7035.207059][   T73]      netlink_rcv_skb+0x130/0x360
[ 7035.207059][   T73]      netlink_unicast+0x449/0x710
[ 7035.207059][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7035.207059][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7035.207059][   T73]      ___sys_sendmsg+0xee/0x170
[ 7035.207059][   T73]      __sys_sendmsg+0xcd/0x170
[ 7035.207059][   T73]      do_syscall_64+0xc6/0x1e0
[ 7035.207059][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7035.207059][   T73] 
[ 7035.209044][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7035.209044][   T73]      netdev_get_by_index+0x5e/0x80
[ 7035.209044][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7035.209044][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7035.209044][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7035.209044][   T73]      ipv6_add_addr+0x411/0x2000
[ 7035.209044][   T73]      inet6_addr_add+0x30e/0xa40
[ 7035.209044][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7035.209044][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7035.209044][   T73]      netlink_rcv_skb+0x130/0x360
[ 7035.209044][   T73]      netlink_unicast+0x449/0x710
[ 7035.209044][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7035.209044][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7035.209044][   T73]      ___sys_sendmsg+0xee/0x170
[ 7035.209044][   T73]      __sys_sendmsg+0xcd/0x170
[ 7035.209044][   T73]      do_syscall_64+0xc6/0x1e0
[ 7035.209044][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7035.209044][   T73] 
[ 7035.211061][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7035.211061][   T73]      netdev_get_by_index+0x5e/0x80
[ 7035.211061][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7035.211061][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7035.211061][   T73]      ip6_route_add+0x1c/0x140
[ 7035.211061][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7035.211061][   T73]      addrconf_add_dev+0xe2/0x170
[ 7035.211061][   T73]      inet6_addr_add+0x12f/0xa40
[ 7035.211061][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7035.211061][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7035.211061][   T73]      netlink_rcv_skb+0x130/0x360
[ 7035.211061][   T73]      netlink_unicast+0x449/0x710
[ 7035.211061][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7035.211061][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7035.211061][   T73]      ___sys_sendmsg+0xee/0x170
[ 7035.211061][   T73]      __sys_sendmsg+0xcd/0x170
[ 7035.211061][   T73]      do_syscall_64+0xc6/0x1e0
[ 7035.211061][   T73] 
[ 7035.213021][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7035.213021][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7035.213021][   T73]      ipv6_find_idev+0x102/0x170
[ 7035.213021][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7035.213021][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7035.213021][   T73]      netlink_rcv_skb+0x130/0x360
[ 7035.213021][   T73]      netlink_unicast+0x449/0x710
[ 7035.213021][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7035.213021][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7035.213021][   T73]      ___sys_sendmsg+0xee/0x170
[ 7035.213021][   T73]      __sys_sendmsg+0xcd/0x170
[ 7035.213021][   T73]      do_syscall_64+0xc6/0x1e0
[ 7035.213021][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7035.213021][   T73] 
[ 7035.214549][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7035.214549][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7035.214549][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7035.214549][   T73]      ipv6_find_idev+0x102/0x170
[ 7035.214549][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7035.214549][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7035.214549][   T73]      netlink_rcv_skb+0x130/0x360
[ 7035.214549][   T73]      netlink_unicast+0x449/0x710
[ 7035.214549][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7035.214549][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7035.214549][   T73]      ___sys_sendmsg+0xee/0x170
[ 7035.214549][   T73]      __sys_sendmsg+0xcd/0x170
[ 7035.214549][   T73]      do_syscall_64+0xc6/0x1e0
[ 7035.214549][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7035.214549][   T73] 
[ 7035.216229][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 7035.216495][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7035.216495][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 7035.216495][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 7035.216495][   T73]      fib6_nh_init+0xa22/0x1580
[ 7035.216495][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7035.216495][   T73]      ip6_route_add+0x1c/0x140
[ 7035.216495][   T73]      inet6_rtm_newroute+0x104/0x110
[ 7035.216495][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7035.216495][   T73]      netlink_rcv_skb+0x130/0x360
[ 7035.216495][   T73]      netlink_unicast+0x449/0x710
[ 7035.216495][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7035.216495][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7035.216495][   T73]      ___sys_sendmsg+0xee/0x170
[ 7035.216495][   T73]      __sys_sendmsg+0xcd/0x170
[ 7035.216495][   T73]      do_syscall_64+0xc6/0x1e0
[ 7035.216495][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7035.216495][   T73] 
[ 7035.218538][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 7035.218538][   T73]      dst_init+0x84/0x4a0
[ 7035.218538][   T73]      dst_alloc+0x97/0x150
[ 7035.218538][   T73]      ip6_dst_alloc+0x23/0x90
[ 7035.218538][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 7035.218538][   T73]      ip6_pol_route+0x56f/0x840
[ 7035.218538][   T73]      fib6_rule_lookup+0x456/0x630
[ 7035.218538][   T73]      ip6_route_input+0x59c/0xa50
[ 7035.218538][   T73]      ipv6_rcv+0x397/0x810
[ 7035.218538][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 7035.218538][   T73]      process_backlog+0x101/0x620
[ 7035.218538][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 7035.218538][   T73]      net_rx_action+0x495/0xbe0
[ 7035.218538][   T73]      __do_softirq+0x1b5/0x7f6
[ 7035.218538][   T73] 
[ 7035.220341][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7035.220341][   T73]      netdev_get_by_index+0x5e/0x80
[ 7035.220341][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7035.220341][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7035.220341][   T73]      ip6_route_add+0x1c/0x140
[ 7035.220341][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7035.220341][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7035.220341][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7035.220341][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7035.220341][   T73]      netlink_rcv_skb+0x130/0x360
[ 7035.220341][   T73]      netlink_unicast+0x449/0x710
[ 7035.220341][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7035.220341][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7035.220341][   T73]      ___sys_sendmsg+0xee/0x170
[ 7035.220341][   T73]      __sys_sendmsg+0xcd/0x170
[ 7035.220341][   T73]      do_syscall_64+0xc6/0x1e0
[ 7035.220341][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7035.220341][   T73] 
[ 7035.222574][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7035.222574][   T73]      netdev_get_by_index+0x5e/0x80
[ 7035.222574][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7035.222574][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7035.222574][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7035.222574][   T73]      ipv6_add_addr+0x411/0x2000
[ 7035.222574][   T73]      inet6_addr_add+0x30e/0xa40
[ 7035.222574][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7035.222574][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7035.222574][   T73]      netlink_rcv_skb+0x130/0x360
[ 7035.222574][   T73]      netlink_unicast+0x449/0x710
[ 7035.222574][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7035.222574][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7035.222574][   T73]      ___sys_sendmsg+0xee/0x170
[ 7035.222574][   T73]      __sys_sendmsg+0xcd/0x170
[ 7035.222574][   T73]      do_syscall_64+0xc6/0x1e0
[ 7035.222574][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7035.222574][   T73] 
[ 7035.224809][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7035.224809][   T73]      netdev_get_by_index+0x5e/0x80
[ 7035.224809][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7035.224809][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7035.224809][   T73]      ip6_route_add+0x1c/0x140
[ 7035.224809][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7035.224809][   T73]      addrconf_add_dev+0xe2/0x170
[ 7035.224809][   T73]      inet6_addr_add+0x12f/0xa40
[ 7035.224809][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7035.224809][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7035.224809][   T73]      netlink_rcv_skb+0x130/0x360
[ 7035.224809][   T73]      netlink_unicast+0x449/0x710
[ 7035.224809][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7035.224809][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7035.224809][   T73]      ___sys_sendmsg+0xee/0x170
[ 7035.224809][   T73]      __sys_sendmsg+0xcd/0x170
[ 7035.224809][   T73]      do_syscall_64+0xc6/0x1e0
[ 7035.224809][   T73] 
[ 7035.226938][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7035.226938][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7035.226938][   T73]      ipv6_find_idev+0x102/0x170
[ 7035.226938][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7035.226938][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7035.226938][   T73]      netlink_rcv_skb+0x130/0x360
[ 7035.226938][   T73]      netlink_unicast+0x449/0x710
[ 7035.226938][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7035.226938][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7035.226938][   T73]      ___sys_sendmsg+0xee/0x170
[ 7035.226938][   T73]      __sys_sendmsg+0xcd/0x170
[ 7035.226938][   T73]      do_syscall_64+0xc6/0x1e0
[ 7035.226938][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7035.226938][   T73] 
[ 7035.228708][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7035.228708][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7035.228708][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7035.228708][   T73]      ipv6_find_idev+0x102/0x170
[ 7035.228708][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7035.228708][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7035.228708][   T73]      netlink_rcv_skb+0x130/0x360
[ 7035.228708][   T73]      netlink_unicast+0x449/0x710
[ 7035.228708][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7035.228708][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7035.228708][   T73]      ___sys_sendmsg+0xee/0x170
[ 7035.228708][   T73]      __sys_sendmsg+0xcd/0x170
[ 7035.228708][   T73]      do_syscall_64+0xc6/0x1e0
[ 7035.228708][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7035.228708][   T73] 
[ 7035.230613][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 7035.231319][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7035.231319][   T73]      netdev_get_by_index+0x5e/0x80
[ 7035.231319][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7035.231319][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7035.231319][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 7035.231319][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 7035.231319][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 7035.231319][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 7035.231319][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 7035.231319][   T73]      addrconf_dad_begin+0x310/0x670
[ 7035.231319][   T73]      addrconf_dad_work+0x10b/0xab0
[ 7035.231319][   T73]      process_one_work+0x84d/0x18a0
[ 7035.231319][   T73]      worker_thread+0x587/0xd30
[ 7035.231319][   T73]      kthread+0x28a/0x350
[ 7035.231319][   T73]      ret_from_fork+0x31/0x70
[ 7035.231319][   T73]      ret_from_fork_asm+0x1a/0x30
[ 7035.231319][   T73] 
[ 7035.233217][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7035.233217][   T73]      netdev_get_by_index+0x5e/0x80
[ 7035.233217][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7035.233217][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7035.233217][   T73]      ip6_route_add+0x1c/0x140
[ 7035.233217][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7035.233217][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7035.233217][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7035.233217][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7035.233217][   T73]      netlink_rcv_skb+0x130/0x360
[ 7035.233217][   T73]      netlink_unicast+0x449/0x710
[ 7035.233217][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7035.233217][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7035.233217][   T73]      ___sys_sendmsg+0xee/0x170
[ 7035.233217][   T73]      __sys_sendmsg+0xcd/0x170
[ 7035.233217][   T73]      do_syscall_64+0xc6/0x1e0
[ 7035.233217][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7035.233217][   T73] 
[ 7035.235315][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7035.235315][   T73]      netdev_get_by_index+0x5e/0x80
[ 7035.235315][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7035.235315][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7035.235315][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7035.235315][   T73]      ipv6_add_addr+0x411/0x2000
[ 7035.235315][   T73]      inet6_addr_add+0x30e/0xa40
[ 7035.235315][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7035.235315][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7035.235315][   T73]      netlink_rcv_skb+0x130/0x360
[ 7035.235315][   T73]      netlink_unicast+0x449/0x710
[ 7035.235315][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7035.235315][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7035.235315][   T73]      ___sys_sendmsg+0xee/0x170
[ 7035.235315][   T73]      __sys_sendmsg+0xcd/0x170
[ 7035.235315][   T73]      do_syscall_64+0xc6/0x1e0
[ 7035.235315][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7035.235315][   T73] 
[ 7035.237474][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7035.237474][   T73]      netdev_get_by_index+0x5e/0x80
[ 7035.237474][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7035.237474][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7035.237474][   T73]      ip6_route_add+0x1c/0x140
[ 7035.237474][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7035.237474][   T73]      addrconf_add_dev+0xe2/0x170
[ 7035.237474][   T73]      inet6_addr_add+0x12f/0xa40
[ 7035.237474][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7035.237474][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7035.237474][   T73]      netlink_rcv_skb+0x130/0x360
[ 7035.237474][   T73]      netlink_unicast+0x449/0x710
[ 7035.237474][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7035.237474][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7035.237474][   T73]      ___sys_sendmsg+0xee/0x170
[ 7035.237474][   T73]      __sys_sendmsg+0xcd/0x170
[ 7035.237474][   T73]      do_syscall_64+0xc6/0x1e0
[ 7035.237474][   T73] 
[ 7035.239682][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7035.239682][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7035.239682][   T73]      ipv6_find_idev+0x102/0x170
[ 7035.239682][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7035.239682][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7035.239682][   T73]      netlink_rcv_skb+0x130/0x360
[ 7035.239682][   T73]      netlink_unicast+0x449/0x710
[ 7035.239682][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7035.239682][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7035.239682][   T73]      ___sys_sendmsg+0xee/0x170
[ 7035.239682][   T73]      __sys_sendmsg+0xcd/0x170
[ 7035.239682][   T73]      do_syscall_64+0xc6/0x1e0
[ 7035.239682][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7035.239682][   T73] 
[ 7035.241449][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7035.241449][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7035.241449][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7035.241449][   T73]      ipv6_find_idev+0x102/0x170
[ 7035.241449][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7035.241449][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7035.241449][   T73]      netlink_rcv_skb+0x130/0x360
[ 7035.241449][   T73]      netlink_unicast+0x449/0x710
[ 7035.241449][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7035.241449][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7035.241449][   T73]      ___sys_sendmsg+0xee/0x170
[ 7035.241449][   T73]      __sys_sendmsg+0xcd/0x170
[ 7035.241449][   T73]      do_syscall_64+0xc6/0x1e0
[ 7035.241449][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7035.241449][   T73] 
[ 7045.335774][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 7045.336257][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7045.336257][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 7045.336257][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 7045.336257][   T73]      fib6_nh_init+0xa22/0x1580
[ 7045.336257][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7045.336257][   T73]      ip6_route_add+0x1c/0x140
[ 7045.336257][   T73]      inet6_rtm_newroute+0x104/0x110
[ 7045.336257][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7045.336257][   T73]      netlink_rcv_skb+0x130/0x360
[ 7045.336257][   T73]      netlink_unicast+0x449/0x710
[ 7045.336257][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7045.336257][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7045.336257][   T73]      ___sys_sendmsg+0xee/0x170
[ 7045.336257][   T73]      __sys_sendmsg+0xcd/0x170
[ 7045.336257][   T73]      do_syscall_64+0xc6/0x1e0
[ 7045.336257][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7045.336257][   T73] 
[ 7045.338185][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 7045.338185][   T73]      dst_init+0x84/0x4a0
[ 7045.338185][   T73]      dst_alloc+0x97/0x150
[ 7045.338185][   T73]      ip6_dst_alloc+0x23/0x90
[ 7045.338185][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 7045.338185][   T73]      ip6_pol_route+0x56f/0x840
[ 7045.338185][   T73]      fib6_rule_lookup+0x456/0x630
[ 7045.338185][   T73]      ip6_route_input+0x59c/0xa50
[ 7045.338185][   T73]      ipv6_rcv+0x397/0x810
[ 7045.338185][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 7045.338185][   T73]      process_backlog+0x101/0x620
[ 7045.338185][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 7045.338185][   T73]      net_rx_action+0x495/0xbe0
[ 7045.338185][   T73]      __do_softirq+0x1b5/0x7f6
[ 7045.338185][   T73] 
[ 7045.339845][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7045.339845][   T73]      netdev_get_by_index+0x5e/0x80
[ 7045.339845][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7045.339845][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7045.339845][   T73]      ip6_route_add+0x1c/0x140
[ 7045.339845][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7045.339845][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7045.339845][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7045.339845][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7045.339845][   T73]      netlink_rcv_skb+0x130/0x360
[ 7045.339845][   T73]      netlink_unicast+0x449/0x710
[ 7045.339845][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7045.339845][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7045.339845][   T73]      ___sys_sendmsg+0xee/0x170
[ 7045.339845][   T73]      __sys_sendmsg+0xcd/0x170
[ 7045.339845][   T73]      do_syscall_64+0xc6/0x1e0
[ 7045.339845][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7045.339845][   T73] 
[ 7045.341890][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7045.341890][   T73]      netdev_get_by_index+0x5e/0x80
[ 7045.341890][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7045.341890][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7045.341890][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7045.341890][   T73]      ipv6_add_addr+0x411/0x2000
[ 7045.341890][   T73]      inet6_addr_add+0x30e/0xa40
[ 7045.341890][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7045.341890][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7045.341890][   T73]      netlink_rcv_skb+0x130/0x360
[ 7045.341890][   T73]      netlink_unicast+0x449/0x710
[ 7045.341890][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7045.341890][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7045.341890][   T73]      ___sys_sendmsg+0xee/0x170
[ 7045.341890][   T73]      __sys_sendmsg+0xcd/0x170
[ 7045.341890][   T73]      do_syscall_64+0xc6/0x1e0
[ 7045.341890][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7045.341890][   T73] 
[ 7045.343916][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7045.343916][   T73]      netdev_get_by_index+0x5e/0x80
[ 7045.343916][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7045.343916][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7045.343916][   T73]      ip6_route_add+0x1c/0x140
[ 7045.343916][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7045.343916][   T73]      addrconf_add_dev+0xe2/0x170
[ 7045.343916][   T73]      inet6_addr_add+0x12f/0xa40
[ 7045.343916][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7045.343916][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7045.343916][   T73]      netlink_rcv_skb+0x130/0x360
[ 7045.343916][   T73]      netlink_unicast+0x449/0x710
[ 7045.343916][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7045.343916][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7045.343916][   T73]      ___sys_sendmsg+0xee/0x170
[ 7045.343916][   T73]      __sys_sendmsg+0xcd/0x170
[ 7045.343916][   T73]      do_syscall_64+0xc6/0x1e0
[ 7045.343916][   T73] 
[ 7045.346006][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7045.346006][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7045.346006][   T73]      ipv6_find_idev+0x102/0x170
[ 7045.346006][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7045.346006][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7045.346006][   T73]      netlink_rcv_skb+0x130/0x360
[ 7045.346006][   T73]      netlink_unicast+0x449/0x710
[ 7045.346006][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7045.346006][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7045.346006][   T73]      ___sys_sendmsg+0xee/0x170
[ 7045.346006][   T73]      __sys_sendmsg+0xcd/0x170
[ 7045.346006][   T73]      do_syscall_64+0xc6/0x1e0
[ 7045.346006][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7045.346006][   T73] 
[ 7045.347584][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7045.347584][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7045.347584][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7045.347584][   T73]      ipv6_find_idev+0x102/0x170
[ 7045.347584][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7045.347584][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7045.347584][   T73]      netlink_rcv_skb+0x130/0x360
[ 7045.347584][   T73]      netlink_unicast+0x449/0x710
[ 7045.347584][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7045.347584][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7045.347584][   T73]      ___sys_sendmsg+0xee/0x170
[ 7045.347584][   T73]      __sys_sendmsg+0xcd/0x170
[ 7045.347584][   T73]      do_syscall_64+0xc6/0x1e0
[ 7045.347584][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7045.347584][   T73] 
[ 7045.349298][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 7045.349577][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7045.349577][   T73]      netdev_get_by_index+0x5e/0x80
[ 7045.349577][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7045.349577][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7045.349577][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 7045.349577][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 7045.349577][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 7045.349577][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 7045.349577][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 7045.349577][   T73]      addrconf_dad_begin+0x310/0x670
[ 7045.349577][   T73]      addrconf_dad_work+0x10b/0xab0
[ 7045.349577][   T73]      process_one_work+0x84d/0x18a0
[ 7045.349577][   T73]      worker_thread+0x587/0xd30
[ 7045.349577][   T73]      kthread+0x28a/0x350
[ 7045.349577][   T73]      ret_from_fork+0x31/0x70
[ 7045.349577][   T73]      ret_from_fork_asm+0x1a/0x30
[ 7045.349577][   T73] 
[ 7045.351516][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7045.351516][   T73]      netdev_get_by_index+0x5e/0x80
[ 7045.351516][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7045.351516][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7045.351516][   T73]      ip6_route_add+0x1c/0x140
[ 7045.351516][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7045.351516][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7045.351516][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7045.351516][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7045.351516][   T73]      netlink_rcv_skb+0x130/0x360
[ 7045.351516][   T73]      netlink_unicast+0x449/0x710
[ 7045.351516][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7045.351516][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7045.351516][   T73]      ___sys_sendmsg+0xee/0x170
[ 7045.351516][   T73]      __sys_sendmsg+0xcd/0x170
[ 7045.351516][   T73]      do_syscall_64+0xc6/0x1e0
[ 7045.351516][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7045.351516][   T73] 
[ 7045.353551][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7045.353551][   T73]      netdev_get_by_index+0x5e/0x80
[ 7045.353551][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7045.353551][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7045.353551][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7045.353551][   T73]      ipv6_add_addr+0x411/0x2000
[ 7045.353551][   T73]      inet6_addr_add+0x30e/0xa40
[ 7045.353551][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7045.353551][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7045.353551][   T73]      netlink_rcv_skb+0x130/0x360
[ 7045.353551][   T73]      netlink_unicast+0x449/0x710
[ 7045.353551][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7045.353551][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7045.353551][   T73]      ___sys_sendmsg+0xee/0x170
[ 7045.353551][   T73]      __sys_sendmsg+0xcd/0x170
[ 7045.353551][   T73]      do_syscall_64+0xc6/0x1e0
[ 7045.353551][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7045.353551][   T73] 
[ 7045.355556][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7045.355556][   T73]      netdev_get_by_index+0x5e/0x80
[ 7045.355556][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7045.355556][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7045.355556][   T73]      ip6_route_add+0x1c/0x140
[ 7045.355556][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7045.355556][   T73]      addrconf_add_dev+0xe2/0x170
[ 7045.355556][   T73]      inet6_addr_add+0x12f/0xa40
[ 7045.355556][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7045.355556][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7045.355556][   T73]      netlink_rcv_skb+0x130/0x360
[ 7045.355556][   T73]      netlink_unicast+0x449/0x710
[ 7045.355556][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7045.355556][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7045.355556][   T73]      ___sys_sendmsg+0xee/0x170
[ 7045.355556][   T73]      __sys_sendmsg+0xcd/0x170
[ 7045.355556][   T73]      do_syscall_64+0xc6/0x1e0
[ 7045.355556][   T73] 
[ 7045.357530][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7045.357530][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7045.357530][   T73]      ipv6_find_idev+0x102/0x170
[ 7045.357530][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7045.357530][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7045.357530][   T73]      netlink_rcv_skb+0x130/0x360
[ 7045.357530][   T73]      netlink_unicast+0x449/0x710
[ 7045.357530][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7045.357530][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7045.357530][   T73]      ___sys_sendmsg+0xee/0x170
[ 7045.357530][   T73]      __sys_sendmsg+0xcd/0x170
[ 7045.357530][   T73]      do_syscall_64+0xc6/0x1e0
[ 7045.357530][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7045.357530][   T73] 
[ 7045.359077][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7045.359077][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7045.359077][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7045.359077][   T73]      ipv6_find_idev+0x102/0x170
[ 7045.359077][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7045.359077][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7045.359077][   T73]      netlink_rcv_skb+0x130/0x360
[ 7045.359077][   T73]      netlink_unicast+0x449/0x710
[ 7045.359077][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7045.359077][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7045.359077][   T73]      ___sys_sendmsg+0xee/0x170
[ 7045.359077][   T73]      __sys_sendmsg+0xcd/0x170
[ 7045.359077][   T73]      do_syscall_64+0xc6/0x1e0
[ 7045.359077][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7045.359077][   T73] 
[ 7045.360774][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 7045.361045][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7045.361045][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 7045.361045][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 7045.361045][   T73]      fib6_nh_init+0xa22/0x1580
[ 7045.361045][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7045.361045][   T73]      ip6_route_add+0x1c/0x140
[ 7045.361045][   T73]      inet6_rtm_newroute+0x104/0x110
[ 7045.361045][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7045.361045][   T73]      netlink_rcv_skb+0x130/0x360
[ 7045.361045][   T73]      netlink_unicast+0x449/0x710
[ 7045.361045][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7045.361045][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7045.361045][   T73]      ___sys_sendmsg+0xee/0x170
[ 7045.361045][   T73]      __sys_sendmsg+0xcd/0x170
[ 7045.361045][   T73]      do_syscall_64+0xc6/0x1e0
[ 7045.361045][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7045.361045][   T73] 
[ 7045.363126][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 7045.363126][   T73]      dst_init+0x84/0x4a0
[ 7045.363126][   T73]      dst_alloc+0x97/0x150
[ 7045.363126][   T73]      ip6_dst_alloc+0x23/0x90
[ 7045.363126][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 7045.363126][   T73]      ip6_pol_route+0x56f/0x840
[ 7045.363126][   T73]      fib6_rule_lookup+0x456/0x630
[ 7045.363126][   T73]      ip6_route_input+0x59c/0xa50
[ 7045.363126][   T73]      ipv6_rcv+0x397/0x810
[ 7045.363126][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 7045.363126][   T73]      process_backlog+0x101/0x620
[ 7045.363126][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 7045.363126][   T73]      net_rx_action+0x495/0xbe0
[ 7045.363126][   T73]      __do_softirq+0x1b5/0x7f6
[ 7045.363126][   T73] 
[ 7045.364966][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7045.364966][   T73]      netdev_get_by_index+0x5e/0x80
[ 7045.364966][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7045.364966][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7045.364966][   T73]      ip6_route_add+0x1c/0x140
[ 7045.364966][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7045.364966][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7045.364966][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7045.364966][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7045.364966][   T73]      netlink_rcv_skb+0x130/0x360
[ 7045.364966][   T73]      netlink_unicast+0x449/0x710
[ 7045.364966][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7045.364966][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7045.364966][   T73]      ___sys_sendmsg+0xee/0x170
[ 7045.364966][   T73]      __sys_sendmsg+0xcd/0x170
[ 7045.364966][   T73]      do_syscall_64+0xc6/0x1e0
[ 7045.364966][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7045.364966][   T73] 
[ 7045.367223][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7045.367223][   T73]      netdev_get_by_index+0x5e/0x80
[ 7045.367223][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7045.367223][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7045.367223][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7045.367223][   T73]      ipv6_add_addr+0x411/0x2000
[ 7045.367223][   T73]      inet6_addr_add+0x30e/0xa40
[ 7045.367223][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7045.367223][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7045.367223][   T73]      netlink_rcv_skb+0x130/0x360
[ 7045.367223][   T73]      netlink_unicast+0x449/0x710
[ 7045.367223][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7045.367223][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7045.367223][   T73]      ___sys_sendmsg+0xee/0x170
[ 7045.367223][   T73]      __sys_sendmsg+0xcd/0x170
[ 7045.367223][   T73]      do_syscall_64+0xc6/0x1e0
[ 7045.367223][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7045.367223][   T73] 
[ 7045.369472][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7045.369472][   T73]      netdev_get_by_index+0x5e/0x80
[ 7045.369472][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7045.369472][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7045.369472][   T73]      ip6_route_add+0x1c/0x140
[ 7045.369472][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7045.369472][   T73]      addrconf_add_dev+0xe2/0x170
[ 7045.369472][   T73]      inet6_addr_add+0x12f/0xa40
[ 7045.369472][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7045.369472][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7045.369472][   T73]      netlink_rcv_skb+0x130/0x360
[ 7045.369472][   T73]      netlink_unicast+0x449/0x710
[ 7045.369472][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7045.369472][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7045.369472][   T73]      ___sys_sendmsg+0xee/0x170
[ 7045.369472][   T73]      __sys_sendmsg+0xcd/0x170
[ 7045.369472][   T73]      do_syscall_64+0xc6/0x1e0
[ 7045.369472][   T73] 
[ 7045.371755][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7045.371755][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7045.371755][   T73]      ipv6_find_idev+0x102/0x170
[ 7045.371755][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7045.371755][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7045.371755][   T73]      netlink_rcv_skb+0x130/0x360
[ 7045.371755][   T73]      netlink_unicast+0x449/0x710
[ 7045.371755][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7045.371755][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7045.371755][   T73]      ___sys_sendmsg+0xee/0x170
[ 7045.371755][   T73]      __sys_sendmsg+0xcd/0x170
[ 7045.371755][   T73]      do_syscall_64+0xc6/0x1e0
[ 7045.371755][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7045.371755][   T73] 
[ 7045.373487][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7045.373487][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7045.373487][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7045.373487][   T73]      ipv6_find_idev+0x102/0x170
[ 7045.373487][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7045.373487][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7045.373487][   T73]      netlink_rcv_skb+0x130/0x360
[ 7045.373487][   T73]      netlink_unicast+0x449/0x710
[ 7045.373487][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7045.373487][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7045.373487][   T73]      ___sys_sendmsg+0xee/0x170
[ 7045.373487][   T73]      __sys_sendmsg+0xcd/0x170
[ 7045.373487][   T73]      do_syscall_64+0xc6/0x1e0
[ 7045.373487][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7045.373487][   T73] 
[ 7045.375369][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 7045.375645][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7045.375645][   T73]      netdev_get_by_index+0x5e/0x80
[ 7045.375645][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7045.375645][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7045.375645][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 7045.375645][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 7045.375645][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 7045.375645][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 7045.375645][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 7045.375645][   T73]      addrconf_dad_begin+0x310/0x670
[ 7045.375645][   T73]      addrconf_dad_work+0x10b/0xab0
[ 7045.375645][   T73]      process_one_work+0x84d/0x18a0
[ 7045.375645][   T73]      worker_thread+0x587/0xd30
[ 7045.375645][   T73]      kthread+0x28a/0x350
[ 7045.375645][   T73]      ret_from_fork+0x31/0x70
[ 7045.375645][   T73]      ret_from_fork_asm+0x1a/0x30
[ 7045.375645][   T73] 
[ 7045.377807][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7045.377807][   T73]      netdev_get_by_index+0x5e/0x80
[ 7045.377807][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7045.377807][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7045.377807][   T73]      ip6_route_add+0x1c/0x140
[ 7045.377807][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7045.377807][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7045.377807][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7045.377807][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7045.377807][   T73]      netlink_rcv_skb+0x130/0x360
[ 7045.377807][   T73]      netlink_unicast+0x449/0x710
[ 7045.377807][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7045.377807][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7045.377807][   T73]      ___sys_sendmsg+0xee/0x170
[ 7045.377807][   T73]      __sys_sendmsg+0xcd/0x170
[ 7045.377807][   T73]      do_syscall_64+0xc6/0x1e0
[ 7045.377807][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7045.377807][   T73] 
[ 7045.380129][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7045.380129][   T73]      netdev_get_by_index+0x5e/0x80
[ 7045.380129][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7045.380129][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7045.380129][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7045.380129][   T73]      ipv6_add_addr+0x411/0x2000
[ 7045.380129][   T73]      inet6_addr_add+0x30e/0xa40
[ 7045.380129][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7045.380129][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7045.380129][   T73]      netlink_rcv_skb+0x130/0x360
[ 7045.380129][   T73]      netlink_unicast+0x449/0x710
[ 7045.380129][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7045.380129][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7045.380129][   T73]      ___sys_sendmsg+0xee/0x170
[ 7045.380129][   T73]      __sys_sendmsg+0xcd/0x170
[ 7045.380129][   T73]      do_syscall_64+0xc6/0x1e0
[ 7045.380129][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7045.380129][   T73] 
[ 7045.382395][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7045.382395][   T73]      netdev_get_by_index+0x5e/0x80
[ 7045.382395][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7045.382395][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7045.382395][   T73]      ip6_route_add+0x1c/0x140
[ 7045.382395][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7045.382395][   T73]      addrconf_add_dev+0xe2/0x170
[ 7045.382395][   T73]      inet6_addr_add+0x12f/0xa40
[ 7045.382395][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7045.382395][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7045.382395][   T73]      netlink_rcv_skb+0x130/0x360
[ 7045.382395][   T73]      netlink_unicast+0x449/0x710
[ 7045.382395][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7045.382395][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7045.382395][   T73]      ___sys_sendmsg+0xee/0x170
[ 7045.382395][   T73]      __sys_sendmsg+0xcd/0x170
[ 7045.382395][   T73]      do_syscall_64+0xc6/0x1e0
[ 7045.382395][   T73] 
[ 7045.384548][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7045.384548][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7045.384548][   T73]      ipv6_find_idev+0x102/0x170
[ 7045.384548][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7045.384548][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7045.384548][   T73]      netlink_rcv_skb+0x130/0x360
[ 7045.384548][   T73]      netlink_unicast+0x449/0x710
[ 7045.384548][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7045.384548][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7045.384548][   T73]      ___sys_sendmsg+0xee/0x170
[ 7045.384548][   T73]      __sys_sendmsg+0xcd/0x170
[ 7045.384548][   T73]      do_syscall_64+0xc6/0x1e0
[ 7045.384548][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7045.384548][   T73] 
[ 7045.386272][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7045.386272][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7045.386272][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7045.386272][   T73]      ipv6_find_idev+0x102/0x170
[ 7045.386272][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7045.386272][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7045.386272][   T73]      netlink_rcv_skb+0x130/0x360
[ 7045.386272][   T73]      netlink_unicast+0x449/0x710
[ 7045.386272][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7045.386272][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7045.386272][   T73]      ___sys_sendmsg+0xee/0x170
[ 7045.386272][   T73]      __sys_sendmsg+0xcd/0x170
[ 7045.386272][   T73]      do_syscall_64+0xc6/0x1e0
[ 7045.386272][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7045.386272][   T73] 
[ 7055.639777][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 7055.640239][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7055.640239][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 7055.640239][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 7055.640239][   T73]      fib6_nh_init+0xa22/0x1580
[ 7055.640239][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7055.640239][   T73]      ip6_route_add+0x1c/0x140
[ 7055.640239][   T73]      inet6_rtm_newroute+0x104/0x110
[ 7055.640239][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7055.640239][   T73]      netlink_rcv_skb+0x130/0x360
[ 7055.640239][   T73]      netlink_unicast+0x449/0x710
[ 7055.640239][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7055.640239][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7055.640239][   T73]      ___sys_sendmsg+0xee/0x170
[ 7055.640239][   T73]      __sys_sendmsg+0xcd/0x170
[ 7055.640239][   T73]      do_syscall_64+0xc6/0x1e0
[ 7055.640239][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7055.640239][   T73] 
[ 7055.642152][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 7055.642152][   T73]      dst_init+0x84/0x4a0
[ 7055.642152][   T73]      dst_alloc+0x97/0x150
[ 7055.642152][   T73]      ip6_dst_alloc+0x23/0x90
[ 7055.642152][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 7055.642152][   T73]      ip6_pol_route+0x56f/0x840
[ 7055.642152][   T73]      fib6_rule_lookup+0x456/0x630
[ 7055.642152][   T73]      ip6_route_input+0x59c/0xa50
[ 7055.642152][   T73]      ipv6_rcv+0x397/0x810
[ 7055.642152][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 7055.642152][   T73]      process_backlog+0x101/0x620
[ 7055.642152][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 7055.642152][   T73]      net_rx_action+0x495/0xbe0
[ 7055.642152][   T73]      __do_softirq+0x1b5/0x7f6
[ 7055.642152][   T73] 
[ 7055.643806][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7055.643806][   T73]      netdev_get_by_index+0x5e/0x80
[ 7055.643806][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7055.643806][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7055.643806][   T73]      ip6_route_add+0x1c/0x140
[ 7055.643806][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7055.643806][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7055.643806][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7055.643806][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7055.643806][   T73]      netlink_rcv_skb+0x130/0x360
[ 7055.643806][   T73]      netlink_unicast+0x449/0x710
[ 7055.643806][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7055.643806][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7055.643806][   T73]      ___sys_sendmsg+0xee/0x170
[ 7055.643806][   T73]      __sys_sendmsg+0xcd/0x170
[ 7055.643806][   T73]      do_syscall_64+0xc6/0x1e0
[ 7055.643806][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7055.643806][   T73] 
[ 7055.645814][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7055.645814][   T73]      netdev_get_by_index+0x5e/0x80
[ 7055.645814][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7055.645814][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7055.645814][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7055.645814][   T73]      ipv6_add_addr+0x411/0x2000
[ 7055.645814][   T73]      inet6_addr_add+0x30e/0xa40
[ 7055.645814][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7055.645814][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7055.645814][   T73]      netlink_rcv_skb+0x130/0x360
[ 7055.645814][   T73]      netlink_unicast+0x449/0x710
[ 7055.645814][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7055.645814][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7055.645814][   T73]      ___sys_sendmsg+0xee/0x170
[ 7055.645814][   T73]      __sys_sendmsg+0xcd/0x170
[ 7055.645814][   T73]      do_syscall_64+0xc6/0x1e0
[ 7055.645814][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7055.645814][   T73] 
[ 7055.647822][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7055.647822][   T73]      netdev_get_by_index+0x5e/0x80
[ 7055.647822][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7055.647822][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7055.647822][   T73]      ip6_route_add+0x1c/0x140
[ 7055.647822][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7055.647822][   T73]      addrconf_add_dev+0xe2/0x170
[ 7055.647822][   T73]      inet6_addr_add+0x12f/0xa40
[ 7055.647822][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7055.647822][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7055.647822][   T73]      netlink_rcv_skb+0x130/0x360
[ 7055.647822][   T73]      netlink_unicast+0x449/0x710
[ 7055.647822][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7055.647822][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7055.647822][   T73]      ___sys_sendmsg+0xee/0x170
[ 7055.647822][   T73]      __sys_sendmsg+0xcd/0x170
[ 7055.647822][   T73]      do_syscall_64+0xc6/0x1e0
[ 7055.647822][   T73] 
[ 7055.649804][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7055.649804][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7055.649804][   T73]      ipv6_find_idev+0x102/0x170
[ 7055.649804][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7055.649804][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7055.649804][   T73]      netlink_rcv_skb+0x130/0x360
[ 7055.649804][   T73]      netlink_unicast+0x449/0x710
[ 7055.649804][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7055.649804][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7055.649804][   T73]      ___sys_sendmsg+0xee/0x170
[ 7055.649804][   T73]      __sys_sendmsg+0xcd/0x170
[ 7055.649804][   T73]      do_syscall_64+0xc6/0x1e0
[ 7055.649804][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7055.649804][   T73] 
[ 7055.651355][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7055.651355][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7055.651355][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7055.651355][   T73]      ipv6_find_idev+0x102/0x170
[ 7055.651355][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7055.651355][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7055.651355][   T73]      netlink_rcv_skb+0x130/0x360
[ 7055.651355][   T73]      netlink_unicast+0x449/0x710
[ 7055.651355][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7055.651355][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7055.651355][   T73]      ___sys_sendmsg+0xee/0x170
[ 7055.651355][   T73]      __sys_sendmsg+0xcd/0x170
[ 7055.651355][   T73]      do_syscall_64+0xc6/0x1e0
[ 7055.651355][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7055.651355][   T73] 
[ 7055.653063][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 7055.653345][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7055.653345][   T73]      netdev_get_by_index+0x5e/0x80
[ 7055.653345][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7055.653345][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7055.653345][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 7055.653345][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 7055.653345][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 7055.653345][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 7055.653345][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 7055.653345][   T73]      addrconf_dad_begin+0x310/0x670
[ 7055.653345][   T73]      addrconf_dad_work+0x10b/0xab0
[ 7055.653345][   T73]      process_one_work+0x84d/0x18a0
[ 7055.653345][   T73]      worker_thread+0x587/0xd30
[ 7055.653345][   T73]      kthread+0x28a/0x350
[ 7055.653345][   T73]      ret_from_fork+0x31/0x70
[ 7055.653345][   T73]      ret_from_fork_asm+0x1a/0x30
[ 7055.653345][   T73] 
[ 7055.655264][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7055.655264][   T73]      netdev_get_by_index+0x5e/0x80
[ 7055.655264][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7055.655264][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7055.655264][   T73]      ip6_route_add+0x1c/0x140
[ 7055.655264][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7055.655264][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7055.655264][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7055.655264][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7055.655264][   T73]      netlink_rcv_skb+0x130/0x360
[ 7055.655264][   T73]      netlink_unicast+0x449/0x710
[ 7055.655264][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7055.655264][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7055.655264][   T73]      ___sys_sendmsg+0xee/0x170
[ 7055.655264][   T73]      __sys_sendmsg+0xcd/0x170
[ 7055.655264][   T73]      do_syscall_64+0xc6/0x1e0
[ 7055.655264][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7055.655264][   T73] 
[ 7055.657289][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7055.657289][   T73]      netdev_get_by_index+0x5e/0x80
[ 7055.657289][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7055.657289][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7055.657289][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7055.657289][   T73]      ipv6_add_addr+0x411/0x2000
[ 7055.657289][   T73]      inet6_addr_add+0x30e/0xa40
[ 7055.657289][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7055.657289][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7055.657289][   T73]      netlink_rcv_skb+0x130/0x360
[ 7055.657289][   T73]      netlink_unicast+0x449/0x710
[ 7055.657289][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7055.657289][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7055.657289][   T73]      ___sys_sendmsg+0xee/0x170
[ 7055.657289][   T73]      __sys_sendmsg+0xcd/0x170
[ 7055.657289][   T73]      do_syscall_64+0xc6/0x1e0
[ 7055.657289][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7055.657289][   T73] 
[ 7055.659296][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7055.659296][   T73]      netdev_get_by_index+0x5e/0x80
[ 7055.659296][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7055.659296][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7055.659296][   T73]      ip6_route_add+0x1c/0x140
[ 7055.659296][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7055.659296][   T73]      addrconf_add_dev+0xe2/0x170
[ 7055.659296][   T73]      inet6_addr_add+0x12f/0xa40
[ 7055.659296][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7055.659296][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7055.659296][   T73]      netlink_rcv_skb+0x130/0x360
[ 7055.659296][   T73]      netlink_unicast+0x449/0x710
[ 7055.659296][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7055.659296][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7055.659296][   T73]      ___sys_sendmsg+0xee/0x170
[ 7055.659296][   T73]      __sys_sendmsg+0xcd/0x170
[ 7055.659296][   T73]      do_syscall_64+0xc6/0x1e0
[ 7055.659296][   T73] 
[ 7055.661267][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7055.661267][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7055.661267][   T73]      ipv6_find_idev+0x102/0x170
[ 7055.661267][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7055.661267][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7055.661267][   T73]      netlink_rcv_skb+0x130/0x360
[ 7055.661267][   T73]      netlink_unicast+0x449/0x710
[ 7055.661267][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7055.661267][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7055.661267][   T73]      ___sys_sendmsg+0xee/0x170
[ 7055.661267][   T73]      __sys_sendmsg+0xcd/0x170
[ 7055.661267][   T73]      do_syscall_64+0xc6/0x1e0
[ 7055.661267][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7055.661267][   T73] 
[ 7055.662836][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7055.662836][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7055.662836][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7055.662836][   T73]      ipv6_find_idev+0x102/0x170
[ 7055.662836][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7055.662836][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7055.662836][   T73]      netlink_rcv_skb+0x130/0x360
[ 7055.662836][   T73]      netlink_unicast+0x449/0x710
[ 7055.662836][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7055.662836][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7055.662836][   T73]      ___sys_sendmsg+0xee/0x170
[ 7055.662836][   T73]      __sys_sendmsg+0xcd/0x170
[ 7055.662836][   T73]      do_syscall_64+0xc6/0x1e0
[ 7055.662836][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7055.662836][   T73] 
[ 7055.664563][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 7055.664879][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7055.664879][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 7055.664879][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 7055.664879][   T73]      fib6_nh_init+0xa22/0x1580
[ 7055.664879][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7055.664879][   T73]      ip6_route_add+0x1c/0x140
[ 7055.664879][   T73]      inet6_rtm_newroute+0x104/0x110
[ 7055.664879][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7055.664879][   T73]      netlink_rcv_skb+0x130/0x360
[ 7055.664879][   T73]      netlink_unicast+0x449/0x710
[ 7055.664879][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7055.664879][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7055.664879][   T73]      ___sys_sendmsg+0xee/0x170
[ 7055.664879][   T73]      __sys_sendmsg+0xcd/0x170
[ 7055.664879][   T73]      do_syscall_64+0xc6/0x1e0
[ 7055.664879][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7055.664879][   T73] 
[ 7055.666956][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 7055.666956][   T73]      dst_init+0x84/0x4a0
[ 7055.666956][   T73]      dst_alloc+0x97/0x150
[ 7055.666956][   T73]      ip6_dst_alloc+0x23/0x90
[ 7055.666956][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 7055.666956][   T73]      ip6_pol_route+0x56f/0x840
[ 7055.666956][   T73]      fib6_rule_lookup+0x456/0x630
[ 7055.666956][   T73]      ip6_route_input+0x59c/0xa50
[ 7055.666956][   T73]      ipv6_rcv+0x397/0x810
[ 7055.666956][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 7055.666956][   T73]      process_backlog+0x101/0x620
[ 7055.666956][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 7055.666956][   T73]      net_rx_action+0x495/0xbe0
[ 7055.666956][   T73]      __do_softirq+0x1b5/0x7f6
[ 7055.666956][   T73] 
[ 7055.668844][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7055.668844][   T73]      netdev_get_by_index+0x5e/0x80
[ 7055.668844][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7055.668844][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7055.668844][   T73]      ip6_route_add+0x1c/0x140
[ 7055.668844][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7055.668844][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7055.668844][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7055.668844][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7055.668844][   T73]      netlink_rcv_skb+0x130/0x360
[ 7055.668844][   T73]      netlink_unicast+0x449/0x710
[ 7055.668844][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7055.668844][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7055.668844][   T73]      ___sys_sendmsg+0xee/0x170
[ 7055.668844][   T73]      __sys_sendmsg+0xcd/0x170
[ 7055.668844][   T73]      do_syscall_64+0xc6/0x1e0
[ 7055.668844][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7055.668844][   T73] 
[ 7055.671091][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7055.671091][   T73]      netdev_get_by_index+0x5e/0x80
[ 7055.671091][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7055.671091][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7055.671091][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7055.671091][   T73]      ipv6_add_addr+0x411/0x2000
[ 7055.671091][   T73]      inet6_addr_add+0x30e/0xa40
[ 7055.671091][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7055.671091][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7055.671091][   T73]      netlink_rcv_skb+0x130/0x360
[ 7055.671091][   T73]      netlink_unicast+0x449/0x710
[ 7055.671091][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7055.671091][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7055.671091][   T73]      ___sys_sendmsg+0xee/0x170
[ 7055.671091][   T73]      __sys_sendmsg+0xcd/0x170
[ 7055.671091][   T73]      do_syscall_64+0xc6/0x1e0
[ 7055.671091][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7055.671091][   T73] 
[ 7055.673346][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7055.673346][   T73]      netdev_get_by_index+0x5e/0x80
[ 7055.673346][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7055.673346][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7055.673346][   T73]      ip6_route_add+0x1c/0x140
[ 7055.673346][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7055.673346][   T73]      addrconf_add_dev+0xe2/0x170
[ 7055.673346][   T73]      inet6_addr_add+0x12f/0xa40
[ 7055.673346][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7055.673346][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7055.673346][   T73]      netlink_rcv_skb+0x130/0x360
[ 7055.673346][   T73]      netlink_unicast+0x449/0x710
[ 7055.673346][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7055.673346][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7055.673346][   T73]      ___sys_sendmsg+0xee/0x170
[ 7055.673346][   T73]      __sys_sendmsg+0xcd/0x170
[ 7055.673346][   T73]      do_syscall_64+0xc6/0x1e0
[ 7055.673346][   T73] 
[ 7055.675566][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7055.675566][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7055.675566][   T73]      ipv6_find_idev+0x102/0x170
[ 7055.675566][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7055.675566][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7055.675566][   T73]      netlink_rcv_skb+0x130/0x360
[ 7055.675566][   T73]      netlink_unicast+0x449/0x710
[ 7055.675566][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7055.675566][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7055.675566][   T73]      ___sys_sendmsg+0xee/0x170
[ 7055.675566][   T73]      __sys_sendmsg+0xcd/0x170
[ 7055.675566][   T73]      do_syscall_64+0xc6/0x1e0
[ 7055.675566][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7055.675566][   T73] 
[ 7055.677356][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7055.677356][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7055.677356][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7055.677356][   T73]      ipv6_find_idev+0x102/0x170
[ 7055.677356][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7055.677356][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7055.677356][   T73]      netlink_rcv_skb+0x130/0x360
[ 7055.677356][   T73]      netlink_unicast+0x449/0x710
[ 7055.677356][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7055.677356][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7055.677356][   T73]      ___sys_sendmsg+0xee/0x170
[ 7055.677356][   T73]      __sys_sendmsg+0xcd/0x170
[ 7055.677356][   T73]      do_syscall_64+0xc6/0x1e0
[ 7055.677356][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7055.677356][   T73] 
[ 7055.679229][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 7055.679500][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7055.679500][   T73]      netdev_get_by_index+0x5e/0x80
[ 7055.679500][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7055.679500][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7055.679500][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 7055.679500][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 7055.679500][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 7055.679500][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 7055.679500][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 7055.679500][   T73]      addrconf_dad_begin+0x310/0x670
[ 7055.679500][   T73]      addrconf_dad_work+0x10b/0xab0
[ 7055.679500][   T73]      process_one_work+0x84d/0x18a0
[ 7055.679500][   T73]      worker_thread+0x587/0xd30
[ 7055.679500][   T73]      kthread+0x28a/0x350
[ 7055.679500][   T73]      ret_from_fork+0x31/0x70
[ 7055.679500][   T73]      ret_from_fork_asm+0x1a/0x30
[ 7055.679500][   T73] 
[ 7055.681660][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7055.681660][   T73]      netdev_get_by_index+0x5e/0x80
[ 7055.681660][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7055.681660][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7055.681660][   T73]      ip6_route_add+0x1c/0x140
[ 7055.681660][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7055.681660][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7055.681660][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7055.681660][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7055.681660][   T73]      netlink_rcv_skb+0x130/0x360
[ 7055.681660][   T73]      netlink_unicast+0x449/0x710
[ 7055.681660][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7055.681660][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7055.681660][   T73]      ___sys_sendmsg+0xee/0x170
[ 7055.681660][   T73]      __sys_sendmsg+0xcd/0x170
[ 7055.681660][   T73]      do_syscall_64+0xc6/0x1e0
[ 7055.681660][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7055.681660][   T73] 
[ 7055.683924][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7055.683924][   T73]      netdev_get_by_index+0x5e/0x80
[ 7055.683924][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7055.683924][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7055.683924][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7055.683924][   T73]      ipv6_add_addr+0x411/0x2000
[ 7055.683924][   T73]      inet6_addr_add+0x30e/0xa40
[ 7055.683924][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7055.683924][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7055.683924][   T73]      netlink_rcv_skb+0x130/0x360
[ 7055.683924][   T73]      netlink_unicast+0x449/0x710
[ 7055.683924][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7055.683924][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7055.683924][   T73]      ___sys_sendmsg+0xee/0x170
[ 7055.683924][   T73]      __sys_sendmsg+0xcd/0x170
[ 7055.683924][   T73]      do_syscall_64+0xc6/0x1e0
[ 7055.683924][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7055.683924][   T73] 
[ 7055.686235][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7055.686235][   T73]      netdev_get_by_index+0x5e/0x80
[ 7055.686235][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7055.686235][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7055.686235][   T73]      ip6_route_add+0x1c/0x140
[ 7055.686235][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7055.686235][   T73]      addrconf_add_dev+0xe2/0x170
[ 7055.686235][   T73]      inet6_addr_add+0x12f/0xa40
[ 7055.686235][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7055.686235][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7055.686235][   T73]      netlink_rcv_skb+0x130/0x360
[ 7055.686235][   T73]      netlink_unicast+0x449/0x710
[ 7055.686235][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7055.686235][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7055.686235][   T73]      ___sys_sendmsg+0xee/0x170
[ 7055.686235][   T73]      __sys_sendmsg+0xcd/0x170
[ 7055.686235][   T73]      do_syscall_64+0xc6/0x1e0
[ 7055.686235][   T73] 
[ 7055.688376][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7055.688376][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7055.688376][   T73]      ipv6_find_idev+0x102/0x170
[ 7055.688376][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7055.688376][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7055.688376][   T73]      netlink_rcv_skb+0x130/0x360
[ 7055.688376][   T73]      netlink_unicast+0x449/0x710
[ 7055.688376][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7055.688376][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7055.688376][   T73]      ___sys_sendmsg+0xee/0x170
[ 7055.688376][   T73]      __sys_sendmsg+0xcd/0x170
[ 7055.688376][   T73]      do_syscall_64+0xc6/0x1e0
[ 7055.688376][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7055.688376][   T73] 
[ 7055.690095][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7055.690095][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7055.690095][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7055.690095][   T73]      ipv6_find_idev+0x102/0x170
[ 7055.690095][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7055.690095][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7055.690095][   T73]      netlink_rcv_skb+0x130/0x360
[ 7055.690095][   T73]      netlink_unicast+0x449/0x710
[ 7055.690095][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7055.690095][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7055.690095][   T73]      ___sys_sendmsg+0xee/0x170
[ 7055.690095][   T73]      __sys_sendmsg+0xcd/0x170
[ 7055.690095][   T73]      do_syscall_64+0xc6/0x1e0
[ 7055.690095][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7055.690095][   T73] 
[ 7065.943776][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 7065.944243][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7065.944243][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 7065.944243][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 7065.944243][   T73]      fib6_nh_init+0xa22/0x1580
[ 7065.944243][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7065.944243][   T73]      ip6_route_add+0x1c/0x140
[ 7065.944243][   T73]      inet6_rtm_newroute+0x104/0x110
[ 7065.944243][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7065.944243][   T73]      netlink_rcv_skb+0x130/0x360
[ 7065.944243][   T73]      netlink_unicast+0x449/0x710
[ 7065.944243][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7065.944243][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7065.944243][   T73]      ___sys_sendmsg+0xee/0x170
[ 7065.944243][   T73]      __sys_sendmsg+0xcd/0x170
[ 7065.944243][   T73]      do_syscall_64+0xc6/0x1e0
[ 7065.944243][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7065.944243][   T73] 
[ 7065.946152][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 7065.946152][   T73]      dst_init+0x84/0x4a0
[ 7065.946152][   T73]      dst_alloc+0x97/0x150
[ 7065.946152][   T73]      ip6_dst_alloc+0x23/0x90
[ 7065.946152][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 7065.946152][   T73]      ip6_pol_route+0x56f/0x840
[ 7065.946152][   T73]      fib6_rule_lookup+0x456/0x630
[ 7065.946152][   T73]      ip6_route_input+0x59c/0xa50
[ 7065.946152][   T73]      ipv6_rcv+0x397/0x810
[ 7065.946152][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 7065.946152][   T73]      process_backlog+0x101/0x620
[ 7065.946152][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 7065.946152][   T73]      net_rx_action+0x495/0xbe0
[ 7065.946152][   T73]      __do_softirq+0x1b5/0x7f6
[ 7065.946152][   T73] 
[ 7065.947827][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7065.947827][   T73]      netdev_get_by_index+0x5e/0x80
[ 7065.947827][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7065.947827][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7065.947827][   T73]      ip6_route_add+0x1c/0x140
[ 7065.947827][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7065.947827][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7065.947827][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7065.947827][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7065.947827][   T73]      netlink_rcv_skb+0x130/0x360
[ 7065.947827][   T73]      netlink_unicast+0x449/0x710
[ 7065.947827][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7065.947827][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7065.947827][   T73]      ___sys_sendmsg+0xee/0x170
[ 7065.947827][   T73]      __sys_sendmsg+0xcd/0x170
[ 7065.947827][   T73]      do_syscall_64+0xc6/0x1e0
[ 7065.947827][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7065.947827][   T73] 
[ 7065.949838][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7065.949838][   T73]      netdev_get_by_index+0x5e/0x80
[ 7065.949838][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7065.949838][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7065.949838][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7065.949838][   T73]      ipv6_add_addr+0x411/0x2000
[ 7065.949838][   T73]      inet6_addr_add+0x30e/0xa40
[ 7065.949838][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7065.949838][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7065.949838][   T73]      netlink_rcv_skb+0x130/0x360
[ 7065.949838][   T73]      netlink_unicast+0x449/0x710
[ 7065.949838][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7065.949838][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7065.949838][   T73]      ___sys_sendmsg+0xee/0x170
[ 7065.949838][   T73]      __sys_sendmsg+0xcd/0x170
[ 7065.949838][   T73]      do_syscall_64+0xc6/0x1e0
[ 7065.949838][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7065.949838][   T73] 
[ 7065.951870][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7065.951870][   T73]      netdev_get_by_index+0x5e/0x80
[ 7065.951870][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7065.951870][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7065.951870][   T73]      ip6_route_add+0x1c/0x140
[ 7065.951870][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7065.951870][   T73]      addrconf_add_dev+0xe2/0x170
[ 7065.951870][   T73]      inet6_addr_add+0x12f/0xa40
[ 7065.951870][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7065.951870][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7065.951870][   T73]      netlink_rcv_skb+0x130/0x360
[ 7065.951870][   T73]      netlink_unicast+0x449/0x710
[ 7065.951870][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7065.951870][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7065.951870][   T73]      ___sys_sendmsg+0xee/0x170
[ 7065.951870][   T73]      __sys_sendmsg+0xcd/0x170
[ 7065.951870][   T73]      do_syscall_64+0xc6/0x1e0
[ 7065.951870][   T73] 
[ 7065.953844][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7065.953844][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7065.953844][   T73]      ipv6_find_idev+0x102/0x170
[ 7065.953844][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7065.953844][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7065.953844][   T73]      netlink_rcv_skb+0x130/0x360
[ 7065.953844][   T73]      netlink_unicast+0x449/0x710
[ 7065.953844][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7065.953844][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7065.953844][   T73]      ___sys_sendmsg+0xee/0x170
[ 7065.953844][   T73]      __sys_sendmsg+0xcd/0x170
[ 7065.953844][   T73]      do_syscall_64+0xc6/0x1e0
[ 7065.953844][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7065.953844][   T73] 
[ 7065.955394][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7065.955394][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7065.955394][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7065.955394][   T73]      ipv6_find_idev+0x102/0x170
[ 7065.955394][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7065.955394][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7065.955394][   T73]      netlink_rcv_skb+0x130/0x360
[ 7065.955394][   T73]      netlink_unicast+0x449/0x710
[ 7065.955394][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7065.955394][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7065.955394][   T73]      ___sys_sendmsg+0xee/0x170
[ 7065.955394][   T73]      __sys_sendmsg+0xcd/0x170
[ 7065.955394][   T73]      do_syscall_64+0xc6/0x1e0
[ 7065.955394][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7065.955394][   T73] 
[ 7065.957111][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 7065.957393][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7065.957393][   T73]      netdev_get_by_index+0x5e/0x80
[ 7065.957393][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7065.957393][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7065.957393][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 7065.957393][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 7065.957393][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 7065.957393][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 7065.957393][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 7065.957393][   T73]      addrconf_dad_begin+0x310/0x670
[ 7065.957393][   T73]      addrconf_dad_work+0x10b/0xab0
[ 7065.957393][   T73]      process_one_work+0x84d/0x18a0
[ 7065.957393][   T73]      worker_thread+0x587/0xd30
[ 7065.957393][   T73]      kthread+0x28a/0x350
[ 7065.957393][   T73]      ret_from_fork+0x31/0x70
[ 7065.957393][   T73]      ret_from_fork_asm+0x1a/0x30
[ 7065.957393][   T73] 
[ 7065.959309][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7065.959309][   T73]      netdev_get_by_index+0x5e/0x80
[ 7065.959309][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7065.959309][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7065.959309][   T73]      ip6_route_add+0x1c/0x140
[ 7065.959309][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7065.959309][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7065.959309][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7065.959309][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7065.959309][   T73]      netlink_rcv_skb+0x130/0x360
[ 7065.959309][   T73]      netlink_unicast+0x449/0x710
[ 7065.959309][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7065.959309][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7065.959309][   T73]      ___sys_sendmsg+0xee/0x170
[ 7065.959309][   T73]      __sys_sendmsg+0xcd/0x170
[ 7065.959309][   T73]      do_syscall_64+0xc6/0x1e0
[ 7065.959309][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7065.959309][   T73] 
[ 7065.961328][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7065.961328][   T73]      netdev_get_by_index+0x5e/0x80
[ 7065.961328][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7065.961328][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7065.961328][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7065.961328][   T73]      ipv6_add_addr+0x411/0x2000
[ 7065.961328][   T73]      inet6_addr_add+0x30e/0xa40
[ 7065.961328][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7065.961328][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7065.961328][   T73]      netlink_rcv_skb+0x130/0x360
[ 7065.961328][   T73]      netlink_unicast+0x449/0x710
[ 7065.961328][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7065.961328][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7065.961328][   T73]      ___sys_sendmsg+0xee/0x170
[ 7065.961328][   T73]      __sys_sendmsg+0xcd/0x170
[ 7065.961328][   T73]      do_syscall_64+0xc6/0x1e0
[ 7065.961328][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7065.961328][   T73] 
[ 7065.963468][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7065.963468][   T73]      netdev_get_by_index+0x5e/0x80
[ 7065.963468][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7065.963468][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7065.963468][   T73]      ip6_route_add+0x1c/0x140
[ 7065.963468][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7065.963468][   T73]      addrconf_add_dev+0xe2/0x170
[ 7065.963468][   T73]      inet6_addr_add+0x12f/0xa40
[ 7065.963468][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7065.963468][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7065.963468][   T73]      netlink_rcv_skb+0x130/0x360
[ 7065.963468][   T73]      netlink_unicast+0x449/0x710
[ 7065.963468][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7065.963468][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7065.963468][   T73]      ___sys_sendmsg+0xee/0x170
[ 7065.963468][   T73]      __sys_sendmsg+0xcd/0x170
[ 7065.963468][   T73]      do_syscall_64+0xc6/0x1e0
[ 7065.963468][   T73] 
[ 7065.965448][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7065.965448][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7065.965448][   T73]      ipv6_find_idev+0x102/0x170
[ 7065.965448][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7065.965448][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7065.965448][   T73]      netlink_rcv_skb+0x130/0x360
[ 7065.965448][   T73]      netlink_unicast+0x449/0x710
[ 7065.965448][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7065.965448][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7065.965448][   T73]      ___sys_sendmsg+0xee/0x170
[ 7065.965448][   T73]      __sys_sendmsg+0xcd/0x170
[ 7065.965448][   T73]      do_syscall_64+0xc6/0x1e0
[ 7065.965448][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7065.965448][   T73] 
[ 7065.967002][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7065.967002][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7065.967002][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7065.967002][   T73]      ipv6_find_idev+0x102/0x170
[ 7065.967002][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7065.967002][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7065.967002][   T73]      netlink_rcv_skb+0x130/0x360
[ 7065.967002][   T73]      netlink_unicast+0x449/0x710
[ 7065.967002][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7065.967002][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7065.967002][   T73]      ___sys_sendmsg+0xee/0x170
[ 7065.967002][   T73]      __sys_sendmsg+0xcd/0x170
[ 7065.967002][   T73]      do_syscall_64+0xc6/0x1e0
[ 7065.967002][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7065.967002][   T73] 
[ 7065.968711][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 7065.968990][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7065.968990][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 7065.968990][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 7065.968990][   T73]      fib6_nh_init+0xa22/0x1580
[ 7065.968990][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7065.968990][   T73]      ip6_route_add+0x1c/0x140
[ 7065.968990][   T73]      inet6_rtm_newroute+0x104/0x110
[ 7065.968990][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7065.968990][   T73]      netlink_rcv_skb+0x130/0x360
[ 7065.968990][   T73]      netlink_unicast+0x449/0x710
[ 7065.968990][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7065.968990][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7065.968990][   T73]      ___sys_sendmsg+0xee/0x170
[ 7065.968990][   T73]      __sys_sendmsg+0xcd/0x170
[ 7065.968990][   T73]      do_syscall_64+0xc6/0x1e0
[ 7065.968990][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7065.968990][   T73] 
[ 7065.971070][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 7065.971070][   T73]      dst_init+0x84/0x4a0
[ 7065.971070][   T73]      dst_alloc+0x97/0x150
[ 7065.971070][   T73]      ip6_dst_alloc+0x23/0x90
[ 7065.971070][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 7065.971070][   T73]      ip6_pol_route+0x56f/0x840
[ 7065.971070][   T73]      fib6_rule_lookup+0x456/0x630
[ 7065.971070][   T73]      ip6_route_input+0x59c/0xa50
[ 7065.971070][   T73]      ipv6_rcv+0x397/0x810
[ 7065.971070][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 7065.971070][   T73]      process_backlog+0x101/0x620
[ 7065.971070][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 7065.971070][   T73]      net_rx_action+0x495/0xbe0
[ 7065.971070][   T73]      __do_softirq+0x1b5/0x7f6
[ 7065.971070][   T73] 
[ 7065.973484][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7065.973484][   T73]      netdev_get_by_index+0x5e/0x80
[ 7065.973484][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7065.973484][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7065.973484][   T73]      ip6_route_add+0x1c/0x140
[ 7065.973484][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7065.973484][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7065.973484][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7065.973484][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7065.973484][   T73]      netlink_rcv_skb+0x130/0x360
[ 7065.973484][   T73]      netlink_unicast+0x449/0x710
[ 7065.973484][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7065.973484][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7065.973484][   T73]      ___sys_sendmsg+0xee/0x170
[ 7065.973484][   T73]      __sys_sendmsg+0xcd/0x170
[ 7065.973484][   T73]      do_syscall_64+0xc6/0x1e0
[ 7065.973484][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7065.973484][   T73] 
[ 7065.975750][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7065.975750][   T73]      netdev_get_by_index+0x5e/0x80
[ 7065.975750][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7065.975750][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7065.975750][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7065.975750][   T73]      ipv6_add_addr+0x411/0x2000
[ 7065.975750][   T73]      inet6_addr_add+0x30e/0xa40
[ 7065.975750][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7065.975750][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7065.975750][   T73]      netlink_rcv_skb+0x130/0x360
[ 7065.975750][   T73]      netlink_unicast+0x449/0x710
[ 7065.975750][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7065.975750][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7065.975750][   T73]      ___sys_sendmsg+0xee/0x170
[ 7065.975750][   T73]      __sys_sendmsg+0xcd/0x170
[ 7065.975750][   T73]      do_syscall_64+0xc6/0x1e0
[ 7065.975750][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7065.975750][   T73] 
[ 7065.978008][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7065.978008][   T73]      netdev_get_by_index+0x5e/0x80
[ 7065.978008][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7065.978008][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7065.978008][   T73]      ip6_route_add+0x1c/0x140
[ 7065.978008][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7065.978008][   T73]      addrconf_add_dev+0xe2/0x170
[ 7065.978008][   T73]      inet6_addr_add+0x12f/0xa40
[ 7065.978008][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7065.978008][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7065.978008][   T73]      netlink_rcv_skb+0x130/0x360
[ 7065.978008][   T73]      netlink_unicast+0x449/0x710
[ 7065.978008][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7065.978008][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7065.978008][   T73]      ___sys_sendmsg+0xee/0x170
[ 7065.978008][   T73]      __sys_sendmsg+0xcd/0x170
[ 7065.978008][   T73]      do_syscall_64+0xc6/0x1e0
[ 7065.978008][   T73] 
[ 7065.980228][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7065.980228][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7065.980228][   T73]      ipv6_find_idev+0x102/0x170
[ 7065.980228][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7065.980228][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7065.980228][   T73]      netlink_rcv_skb+0x130/0x360
[ 7065.980228][   T73]      netlink_unicast+0x449/0x710
[ 7065.980228][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7065.980228][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7065.980228][   T73]      ___sys_sendmsg+0xee/0x170
[ 7065.980228][   T73]      __sys_sendmsg+0xcd/0x170
[ 7065.980228][   T73]      do_syscall_64+0xc6/0x1e0
[ 7065.980228][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7065.980228][   T73] 
[ 7065.982034][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7065.982034][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7065.982034][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7065.982034][   T73]      ipv6_find_idev+0x102/0x170
[ 7065.982034][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7065.982034][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7065.982034][   T73]      netlink_rcv_skb+0x130/0x360
[ 7065.982034][   T73]      netlink_unicast+0x449/0x710
[ 7065.982034][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7065.982034][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7065.982034][   T73]      ___sys_sendmsg+0xee/0x170
[ 7065.982034][   T73]      __sys_sendmsg+0xcd/0x170
[ 7065.982034][   T73]      do_syscall_64+0xc6/0x1e0
[ 7065.982034][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7065.982034][   T73] 
[ 7065.983921][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 7065.984202][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7065.984202][   T73]      netdev_get_by_index+0x5e/0x80
[ 7065.984202][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7065.984202][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7065.984202][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 7065.984202][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 7065.984202][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 7065.984202][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 7065.984202][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 7065.984202][   T73]      addrconf_dad_begin+0x310/0x670
[ 7065.984202][   T73]      addrconf_dad_work+0x10b/0xab0
[ 7065.984202][   T73]      process_one_work+0x84d/0x18a0
[ 7065.984202][   T73]      worker_thread+0x587/0xd30
[ 7065.984202][   T73]      kthread+0x28a/0x350
[ 7065.984202][   T73]      ret_from_fork+0x31/0x70
[ 7065.984202][   T73]      ret_from_fork_asm+0x1a/0x30
[ 7065.984202][   T73] 
[ 7065.988652][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7065.988652][   T73]      netdev_get_by_index+0x5e/0x80
[ 7065.988652][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7065.988652][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7065.988652][   T73]      ip6_route_add+0x1c/0x140
[ 7065.988652][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7065.988652][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7065.988652][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7065.988652][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7065.988652][   T73]      netlink_rcv_skb+0x130/0x360
[ 7065.988652][   T73]      netlink_unicast+0x449/0x710
[ 7065.988652][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7065.988652][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7065.988652][   T73]      ___sys_sendmsg+0xee/0x170
[ 7065.988652][   T73]      __sys_sendmsg+0xcd/0x170
[ 7065.988652][   T73]      do_syscall_64+0xc6/0x1e0
[ 7065.988652][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7065.988652][   T73] 
[ 7065.990927][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7065.990927][   T73]      netdev_get_by_index+0x5e/0x80
[ 7065.990927][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7065.990927][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7065.990927][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7065.990927][   T73]      ipv6_add_addr+0x411/0x2000
[ 7065.990927][   T73]      inet6_addr_add+0x30e/0xa40
[ 7065.990927][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7065.990927][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7065.990927][   T73]      netlink_rcv_skb+0x130/0x360
[ 7065.990927][   T73]      netlink_unicast+0x449/0x710
[ 7065.990927][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7065.990927][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7065.990927][   T73]      ___sys_sendmsg+0xee/0x170
[ 7065.990927][   T73]      __sys_sendmsg+0xcd/0x170
[ 7065.990927][   T73]      do_syscall_64+0xc6/0x1e0
[ 7065.990927][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7065.990927][   T73] 
[ 7065.993155][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7065.993155][   T73]      netdev_get_by_index+0x5e/0x80
[ 7065.993155][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7065.993155][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7065.993155][   T73]      ip6_route_add+0x1c/0x140
[ 7065.993155][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7065.993155][   T73]      addrconf_add_dev+0xe2/0x170
[ 7065.993155][   T73]      inet6_addr_add+0x12f/0xa40
[ 7065.993155][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7065.993155][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7065.993155][   T73]      netlink_rcv_skb+0x130/0x360
[ 7065.993155][   T73]      netlink_unicast+0x449/0x710
[ 7065.993155][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7065.993155][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7065.993155][   T73]      ___sys_sendmsg+0xee/0x170
[ 7065.993155][   T73]      __sys_sendmsg+0xcd/0x170
[ 7065.993155][   T73]      do_syscall_64+0xc6/0x1e0
[ 7065.993155][   T73] 
[ 7065.995206][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7065.995206][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7065.995206][   T73]      ipv6_find_idev+0x102/0x170
[ 7065.995206][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7065.995206][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7065.995206][   T73]      netlink_rcv_skb+0x130/0x360
[ 7065.995206][   T73]      netlink_unicast+0x449/0x710
[ 7065.995206][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7065.995206][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7065.995206][   T73]      ___sys_sendmsg+0xee/0x170
[ 7065.995206][   T73]      __sys_sendmsg+0xcd/0x170
[ 7065.995206][   T73]      do_syscall_64+0xc6/0x1e0
[ 7065.995206][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7065.995206][   T73] 
[ 7065.996887][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7065.996887][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7065.996887][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7065.996887][   T73]      ipv6_find_idev+0x102/0x170
[ 7065.996887][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7065.996887][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7065.996887][   T73]      netlink_rcv_skb+0x130/0x360
[ 7065.996887][   T73]      netlink_unicast+0x449/0x710
[ 7065.996887][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7065.996887][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7065.996887][   T73]      ___sys_sendmsg+0xee/0x170
[ 7065.996887][   T73]      __sys_sendmsg+0xcd/0x170
[ 7065.996887][   T73]      do_syscall_64+0xc6/0x1e0
[ 7065.996887][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7065.996887][   T73] 
[ 7076.255783][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 7076.256255][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7076.256255][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 7076.256255][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 7076.256255][   T73]      fib6_nh_init+0xa22/0x1580
[ 7076.256255][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7076.256255][   T73]      ip6_route_add+0x1c/0x140
[ 7076.256255][   T73]      inet6_rtm_newroute+0x104/0x110
[ 7076.256255][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7076.256255][   T73]      netlink_rcv_skb+0x130/0x360
[ 7076.256255][   T73]      netlink_unicast+0x449/0x710
[ 7076.256255][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7076.256255][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7076.256255][   T73]      ___sys_sendmsg+0xee/0x170
[ 7076.256255][   T73]      __sys_sendmsg+0xcd/0x170
[ 7076.256255][   T73]      do_syscall_64+0xc6/0x1e0
[ 7076.256255][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7076.256255][   T73] 
[ 7076.258199][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 7076.258199][   T73]      dst_init+0x84/0x4a0
[ 7076.258199][   T73]      dst_alloc+0x97/0x150
[ 7076.258199][   T73]      ip6_dst_alloc+0x23/0x90
[ 7076.258199][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 7076.258199][   T73]      ip6_pol_route+0x56f/0x840
[ 7076.258199][   T73]      fib6_rule_lookup+0x456/0x630
[ 7076.258199][   T73]      ip6_route_input+0x59c/0xa50
[ 7076.258199][   T73]      ipv6_rcv+0x397/0x810
[ 7076.258199][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 7076.258199][   T73]      process_backlog+0x101/0x620
[ 7076.258199][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 7076.258199][   T73]      net_rx_action+0x495/0xbe0
[ 7076.258199][   T73]      __do_softirq+0x1b5/0x7f6
[ 7076.258199][   T73] 
[ 7076.259870][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7076.259870][   T73]      netdev_get_by_index+0x5e/0x80
[ 7076.259870][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7076.259870][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7076.259870][   T73]      ip6_route_add+0x1c/0x140
[ 7076.259870][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7076.259870][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7076.259870][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7076.259870][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7076.259870][   T73]      netlink_rcv_skb+0x130/0x360
[ 7076.259870][   T73]      netlink_unicast+0x449/0x710
[ 7076.259870][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7076.259870][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7076.259870][   T73]      ___sys_sendmsg+0xee/0x170
[ 7076.259870][   T73]      __sys_sendmsg+0xcd/0x170
[ 7076.259870][   T73]      do_syscall_64+0xc6/0x1e0
[ 7076.259870][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7076.259870][   T73] 
[ 7076.261926][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7076.261926][   T73]      netdev_get_by_index+0x5e/0x80
[ 7076.261926][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7076.261926][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7076.261926][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7076.261926][   T73]      ipv6_add_addr+0x411/0x2000
[ 7076.261926][   T73]      inet6_addr_add+0x30e/0xa40
[ 7076.261926][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7076.261926][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7076.261926][   T73]      netlink_rcv_skb+0x130/0x360
[ 7076.261926][   T73]      netlink_unicast+0x449/0x710
[ 7076.261926][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7076.261926][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7076.261926][   T73]      ___sys_sendmsg+0xee/0x170
[ 7076.261926][   T73]      __sys_sendmsg+0xcd/0x170
[ 7076.261926][   T73]      do_syscall_64+0xc6/0x1e0
[ 7076.261926][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7076.261926][   T73] 
[ 7076.263970][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7076.263970][   T73]      netdev_get_by_index+0x5e/0x80
[ 7076.263970][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7076.263970][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7076.263970][   T73]      ip6_route_add+0x1c/0x140
[ 7076.263970][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7076.263970][   T73]      addrconf_add_dev+0xe2/0x170
[ 7076.263970][   T73]      inet6_addr_add+0x12f/0xa40
[ 7076.263970][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7076.263970][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7076.263970][   T73]      netlink_rcv_skb+0x130/0x360
[ 7076.263970][   T73]      netlink_unicast+0x449/0x710
[ 7076.263970][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7076.263970][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7076.263970][   T73]      ___sys_sendmsg+0xee/0x170
[ 7076.263970][   T73]      __sys_sendmsg+0xcd/0x170
[ 7076.263970][   T73]      do_syscall_64+0xc6/0x1e0
[ 7076.263970][   T73] 
[ 7076.265974][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7076.265974][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7076.265974][   T73]      ipv6_find_idev+0x102/0x170
[ 7076.265974][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7076.265974][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7076.265974][   T73]      netlink_rcv_skb+0x130/0x360
[ 7076.265974][   T73]      netlink_unicast+0x449/0x710
[ 7076.265974][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7076.265974][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7076.265974][   T73]      ___sys_sendmsg+0xee/0x170
[ 7076.265974][   T73]      __sys_sendmsg+0xcd/0x170
[ 7076.265974][   T73]      do_syscall_64+0xc6/0x1e0
[ 7076.265974][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7076.265974][   T73] 
[ 7076.267540][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7076.267540][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7076.267540][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7076.267540][   T73]      ipv6_find_idev+0x102/0x170
[ 7076.267540][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7076.267540][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7076.267540][   T73]      netlink_rcv_skb+0x130/0x360
[ 7076.267540][   T73]      netlink_unicast+0x449/0x710
[ 7076.267540][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7076.267540][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7076.267540][   T73]      ___sys_sendmsg+0xee/0x170
[ 7076.267540][   T73]      __sys_sendmsg+0xcd/0x170
[ 7076.267540][   T73]      do_syscall_64+0xc6/0x1e0
[ 7076.267540][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7076.267540][   T73] 
[ 7076.269280][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 7076.269565][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7076.269565][   T73]      netdev_get_by_index+0x5e/0x80
[ 7076.269565][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7076.269565][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7076.269565][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 7076.269565][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 7076.269565][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 7076.269565][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 7076.269565][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 7076.269565][   T73]      addrconf_dad_begin+0x310/0x670
[ 7076.269565][   T73]      addrconf_dad_work+0x10b/0xab0
[ 7076.269565][   T73]      process_one_work+0x84d/0x18a0
[ 7076.269565][   T73]      worker_thread+0x587/0xd30
[ 7076.269565][   T73]      kthread+0x28a/0x350
[ 7076.269565][   T73]      ret_from_fork+0x31/0x70
[ 7076.269565][   T73]      ret_from_fork_asm+0x1a/0x30
[ 7076.269565][   T73] 
[ 7076.271536][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7076.271536][   T73]      netdev_get_by_index+0x5e/0x80
[ 7076.271536][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7076.271536][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7076.271536][   T73]      ip6_route_add+0x1c/0x140
[ 7076.271536][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7076.271536][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7076.271536][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7076.271536][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7076.271536][   T73]      netlink_rcv_skb+0x130/0x360
[ 7076.271536][   T73]      netlink_unicast+0x449/0x710
[ 7076.271536][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7076.271536][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7076.271536][   T73]      ___sys_sendmsg+0xee/0x170
[ 7076.271536][   T73]      __sys_sendmsg+0xcd/0x170
[ 7076.271536][   T73]      do_syscall_64+0xc6/0x1e0
[ 7076.271536][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7076.271536][   T73] 
[ 7076.273576][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7076.273576][   T73]      netdev_get_by_index+0x5e/0x80
[ 7076.273576][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7076.273576][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7076.273576][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7076.273576][   T73]      ipv6_add_addr+0x411/0x2000
[ 7076.273576][   T73]      inet6_addr_add+0x30e/0xa40
[ 7076.273576][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7076.273576][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7076.273576][   T73]      netlink_rcv_skb+0x130/0x360
[ 7076.273576][   T73]      netlink_unicast+0x449/0x710
[ 7076.273576][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7076.273576][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7076.273576][   T73]      ___sys_sendmsg+0xee/0x170
[ 7076.273576][   T73]      __sys_sendmsg+0xcd/0x170
[ 7076.273576][   T73]      do_syscall_64+0xc6/0x1e0
[ 7076.273576][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7076.273576][   T73] 
[ 7076.275619][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7076.275619][   T73]      netdev_get_by_index+0x5e/0x80
[ 7076.275619][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7076.275619][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7076.275619][   T73]      ip6_route_add+0x1c/0x140
[ 7076.275619][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7076.275619][   T73]      addrconf_add_dev+0xe2/0x170
[ 7076.275619][   T73]      inet6_addr_add+0x12f/0xa40
[ 7076.275619][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7076.275619][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7076.275619][   T73]      netlink_rcv_skb+0x130/0x360
[ 7076.275619][   T73]      netlink_unicast+0x449/0x710
[ 7076.275619][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7076.275619][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7076.275619][   T73]      ___sys_sendmsg+0xee/0x170
[ 7076.275619][   T73]      __sys_sendmsg+0xcd/0x170
[ 7076.275619][   T73]      do_syscall_64+0xc6/0x1e0
[ 7076.275619][   T73] 
[ 7076.277626][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7076.277626][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7076.277626][   T73]      ipv6_find_idev+0x102/0x170
[ 7076.277626][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7076.277626][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7076.277626][   T73]      netlink_rcv_skb+0x130/0x360
[ 7076.277626][   T73]      netlink_unicast+0x449/0x710
[ 7076.277626][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7076.277626][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7076.277626][   T73]      ___sys_sendmsg+0xee/0x170
[ 7076.277626][   T73]      __sys_sendmsg+0xcd/0x170
[ 7076.277626][   T73]      do_syscall_64+0xc6/0x1e0
[ 7076.277626][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7076.277626][   T73] 
[ 7076.279187][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7076.279187][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7076.279187][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7076.279187][   T73]      ipv6_find_idev+0x102/0x170
[ 7076.279187][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7076.279187][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7076.279187][   T73]      netlink_rcv_skb+0x130/0x360
[ 7076.279187][   T73]      netlink_unicast+0x449/0x710
[ 7076.279187][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7076.279187][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7076.279187][   T73]      ___sys_sendmsg+0xee/0x170
[ 7076.279187][   T73]      __sys_sendmsg+0xcd/0x170
[ 7076.279187][   T73]      do_syscall_64+0xc6/0x1e0
[ 7076.279187][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7076.279187][   T73] 
[ 7076.280917][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 7076.281207][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7076.281207][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 7076.281207][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 7076.281207][   T73]      fib6_nh_init+0xa22/0x1580
[ 7076.281207][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7076.281207][   T73]      ip6_route_add+0x1c/0x140
[ 7076.281207][   T73]      inet6_rtm_newroute+0x104/0x110
[ 7076.281207][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7076.281207][   T73]      netlink_rcv_skb+0x130/0x360
[ 7076.281207][   T73]      netlink_unicast+0x449/0x710
[ 7076.281207][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7076.281207][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7076.281207][   T73]      ___sys_sendmsg+0xee/0x170
[ 7076.281207][   T73]      __sys_sendmsg+0xcd/0x170
[ 7076.281207][   T73]      do_syscall_64+0xc6/0x1e0
[ 7076.281207][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7076.281207][   T73] 
[ 7076.283310][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 7076.283310][   T73]      dst_init+0x84/0x4a0
[ 7076.283310][   T73]      dst_alloc+0x97/0x150
[ 7076.283310][   T73]      ip6_dst_alloc+0x23/0x90
[ 7076.283310][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 7076.283310][   T73]      ip6_pol_route+0x56f/0x840
[ 7076.283310][   T73]      fib6_rule_lookup+0x456/0x630
[ 7076.283310][   T73]      ip6_route_input+0x59c/0xa50
[ 7076.283310][   T73]      ipv6_rcv+0x397/0x810
[ 7076.283310][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 7076.283310][   T73]      process_backlog+0x101/0x620
[ 7076.283310][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 7076.283310][   T73]      net_rx_action+0x495/0xbe0
[ 7076.283310][   T73]      __do_softirq+0x1b5/0x7f6
[ 7076.283310][   T73] 
[ 7076.285154][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7076.285154][   T73]      netdev_get_by_index+0x5e/0x80
[ 7076.285154][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7076.285154][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7076.285154][   T73]      ip6_route_add+0x1c/0x140
[ 7076.285154][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7076.285154][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7076.285154][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7076.285154][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7076.285154][   T73]      netlink_rcv_skb+0x130/0x360
[ 7076.285154][   T73]      netlink_unicast+0x449/0x710
[ 7076.285154][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7076.285154][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7076.285154][   T73]      ___sys_sendmsg+0xee/0x170
[ 7076.285154][   T73]      __sys_sendmsg+0xcd/0x170
[ 7076.285154][   T73]      do_syscall_64+0xc6/0x1e0
[ 7076.285154][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7076.285154][   T73] 
[ 7076.287437][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7076.287437][   T73]      netdev_get_by_index+0x5e/0x80
[ 7076.287437][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7076.287437][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7076.287437][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7076.287437][   T73]      ipv6_add_addr+0x411/0x2000
[ 7076.287437][   T73]      inet6_addr_add+0x30e/0xa40
[ 7076.287437][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7076.287437][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7076.287437][   T73]      netlink_rcv_skb+0x130/0x360
[ 7076.287437][   T73]      netlink_unicast+0x449/0x710
[ 7076.287437][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7076.287437][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7076.287437][   T73]      ___sys_sendmsg+0xee/0x170
[ 7076.287437][   T73]      __sys_sendmsg+0xcd/0x170
[ 7076.287437][   T73]      do_syscall_64+0xc6/0x1e0
[ 7076.287437][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7076.287437][   T73] 
[ 7076.289775][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7076.289775][   T73]      netdev_get_by_index+0x5e/0x80
[ 7076.289775][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7076.289775][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7076.289775][   T73]      ip6_route_add+0x1c/0x140
[ 7076.289775][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7076.289775][   T73]      addrconf_add_dev+0xe2/0x170
[ 7076.289775][   T73]      inet6_addr_add+0x12f/0xa40
[ 7076.289775][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7076.289775][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7076.289775][   T73]      netlink_rcv_skb+0x130/0x360
[ 7076.289775][   T73]      netlink_unicast+0x449/0x710
[ 7076.289775][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7076.289775][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7076.289775][   T73]      ___sys_sendmsg+0xee/0x170
[ 7076.289775][   T73]      __sys_sendmsg+0xcd/0x170
[ 7076.289775][   T73]      do_syscall_64+0xc6/0x1e0
[ 7076.289775][   T73] 
[ 7076.292042][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7076.292042][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7076.292042][   T73]      ipv6_find_idev+0x102/0x170
[ 7076.292042][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7076.292042][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7076.292042][   T73]      netlink_rcv_skb+0x130/0x360
[ 7076.292042][   T73]      netlink_unicast+0x449/0x710
[ 7076.292042][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7076.292042][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7076.292042][   T73]      ___sys_sendmsg+0xee/0x170
[ 7076.292042][   T73]      __sys_sendmsg+0xcd/0x170
[ 7076.292042][   T73]      do_syscall_64+0xc6/0x1e0
[ 7076.292042][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7076.292042][   T73] 
[ 7076.293802][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7076.293802][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7076.293802][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7076.293802][   T73]      ipv6_find_idev+0x102/0x170
[ 7076.293802][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7076.293802][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7076.293802][   T73]      netlink_rcv_skb+0x130/0x360
[ 7076.293802][   T73]      netlink_unicast+0x449/0x710
[ 7076.293802][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7076.293802][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7076.293802][   T73]      ___sys_sendmsg+0xee/0x170
[ 7076.293802][   T73]      __sys_sendmsg+0xcd/0x170
[ 7076.293802][   T73]      do_syscall_64+0xc6/0x1e0
[ 7076.293802][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7076.293802][   T73] 
[ 7076.295709][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 7076.295994][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7076.295994][   T73]      netdev_get_by_index+0x5e/0x80
[ 7076.295994][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7076.295994][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7076.295994][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 7076.295994][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 7076.295994][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 7076.295994][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 7076.295994][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 7076.295994][   T73]      addrconf_dad_begin+0x310/0x670
[ 7076.295994][   T73]      addrconf_dad_work+0x10b/0xab0
[ 7076.295994][   T73]      process_one_work+0x84d/0x18a0
[ 7076.295994][   T73]      worker_thread+0x587/0xd30
[ 7076.295994][   T73]      kthread+0x28a/0x350
[ 7076.295994][   T73]      ret_from_fork+0x31/0x70
[ 7076.295994][   T73]      ret_from_fork_asm+0x1a/0x30
[ 7076.295994][   T73] 
[ 7076.298258][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7076.298258][   T73]      netdev_get_by_index+0x5e/0x80
[ 7076.298258][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7076.298258][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7076.298258][   T73]      ip6_route_add+0x1c/0x140
[ 7076.298258][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7076.298258][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7076.298258][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7076.298258][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7076.298258][   T73]      netlink_rcv_skb+0x130/0x360
[ 7076.298258][   T73]      netlink_unicast+0x449/0x710
[ 7076.298258][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7076.298258][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7076.298258][   T73]      ___sys_sendmsg+0xee/0x170
[ 7076.298258][   T73]      __sys_sendmsg+0xcd/0x170
[ 7076.298258][   T73]      do_syscall_64+0xc6/0x1e0
[ 7076.298258][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7076.298258][   T73] 
[ 7076.300538][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7076.300538][   T73]      netdev_get_by_index+0x5e/0x80
[ 7076.300538][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7076.300538][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7076.300538][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7076.300538][   T73]      ipv6_add_addr+0x411/0x2000
[ 7076.300538][   T73]      inet6_addr_add+0x30e/0xa40
[ 7076.300538][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7076.300538][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7076.300538][   T73]      netlink_rcv_skb+0x130/0x360
[ 7076.300538][   T73]      netlink_unicast+0x449/0x710
[ 7076.300538][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7076.300538][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7076.300538][   T73]      ___sys_sendmsg+0xee/0x170
[ 7076.300538][   T73]      __sys_sendmsg+0xcd/0x170
[ 7076.300538][   T73]      do_syscall_64+0xc6/0x1e0
[ 7076.300538][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7076.300538][   T73] 
[ 7076.302817][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7076.302817][   T73]      netdev_get_by_index+0x5e/0x80
[ 7076.302817][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7076.302817][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7076.302817][   T73]      ip6_route_add+0x1c/0x140
[ 7076.302817][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7076.302817][   T73]      addrconf_add_dev+0xe2/0x170
[ 7076.302817][   T73]      inet6_addr_add+0x12f/0xa40
[ 7076.302817][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7076.302817][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7076.302817][   T73]      netlink_rcv_skb+0x130/0x360
[ 7076.302817][   T73]      netlink_unicast+0x449/0x710
[ 7076.302817][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7076.302817][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7076.302817][   T73]      ___sys_sendmsg+0xee/0x170
[ 7076.302817][   T73]      __sys_sendmsg+0xcd/0x170
[ 7076.302817][   T73]      do_syscall_64+0xc6/0x1e0
[ 7076.302817][   T73] 
[ 7076.304999][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7076.304999][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7076.304999][   T73]      ipv6_find_idev+0x102/0x170
[ 7076.304999][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7076.304999][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7076.304999][   T73]      netlink_rcv_skb+0x130/0x360
[ 7076.304999][   T73]      netlink_unicast+0x449/0x710
[ 7076.304999][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7076.304999][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7076.304999][   T73]      ___sys_sendmsg+0xee/0x170
[ 7076.304999][   T73]      __sys_sendmsg+0xcd/0x170
[ 7076.304999][   T73]      do_syscall_64+0xc6/0x1e0
[ 7076.304999][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7076.304999][   T73] 
[ 7076.306747][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7076.306747][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7076.306747][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7076.306747][   T73]      ipv6_find_idev+0x102/0x170
[ 7076.306747][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7076.306747][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7076.306747][   T73]      netlink_rcv_skb+0x130/0x360
[ 7076.306747][   T73]      netlink_unicast+0x449/0x710
[ 7076.306747][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7076.306747][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7076.306747][   T73]      ___sys_sendmsg+0xee/0x170
[ 7076.306747][   T73]      __sys_sendmsg+0xcd/0x170
[ 7076.306747][   T73]      do_syscall_64+0xc6/0x1e0
[ 7076.306747][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7076.306747][   T73] 
[ 7086.479754][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 7086.480198][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7086.480198][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 7086.480198][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 7086.480198][   T73]      fib6_nh_init+0xa22/0x1580
[ 7086.480198][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7086.480198][   T73]      ip6_route_add+0x1c/0x140
[ 7086.480198][   T73]      inet6_rtm_newroute+0x104/0x110
[ 7086.480198][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7086.480198][   T73]      netlink_rcv_skb+0x130/0x360
[ 7086.480198][   T73]      netlink_unicast+0x449/0x710
[ 7086.480198][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7086.480198][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7086.480198][   T73]      ___sys_sendmsg+0xee/0x170
[ 7086.480198][   T73]      __sys_sendmsg+0xcd/0x170
[ 7086.480198][   T73]      do_syscall_64+0xc6/0x1e0
[ 7086.480198][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7086.480198][   T73] 
[ 7086.482088][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 7086.482088][   T73]      dst_init+0x84/0x4a0
[ 7086.482088][   T73]      dst_alloc+0x97/0x150
[ 7086.482088][   T73]      ip6_dst_alloc+0x23/0x90
[ 7086.482088][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 7086.482088][   T73]      ip6_pol_route+0x56f/0x840
[ 7086.482088][   T73]      fib6_rule_lookup+0x456/0x630
[ 7086.482088][   T73]      ip6_route_input+0x59c/0xa50
[ 7086.482088][   T73]      ipv6_rcv+0x397/0x810
[ 7086.482088][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 7086.482088][   T73]      process_backlog+0x101/0x620
[ 7086.482088][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 7086.482088][   T73]      net_rx_action+0x495/0xbe0
[ 7086.482088][   T73]      __do_softirq+0x1b5/0x7f6
[ 7086.482088][   T73] 
[ 7086.483712][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7086.483712][   T73]      netdev_get_by_index+0x5e/0x80
[ 7086.483712][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7086.483712][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7086.483712][   T73]      ip6_route_add+0x1c/0x140
[ 7086.483712][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7086.483712][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7086.483712][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7086.483712][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7086.483712][   T73]      netlink_rcv_skb+0x130/0x360
[ 7086.483712][   T73]      netlink_unicast+0x449/0x710
[ 7086.483712][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7086.483712][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7086.483712][   T73]      ___sys_sendmsg+0xee/0x170
[ 7086.483712][   T73]      __sys_sendmsg+0xcd/0x170
[ 7086.483712][   T73]      do_syscall_64+0xc6/0x1e0
[ 7086.483712][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7086.483712][   T73] 
[ 7086.485701][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7086.485701][   T73]      netdev_get_by_index+0x5e/0x80
[ 7086.485701][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7086.485701][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7086.485701][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7086.485701][   T73]      ipv6_add_addr+0x411/0x2000
[ 7086.485701][   T73]      inet6_addr_add+0x30e/0xa40
[ 7086.485701][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7086.485701][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7086.485701][   T73]      netlink_rcv_skb+0x130/0x360
[ 7086.485701][   T73]      netlink_unicast+0x449/0x710
[ 7086.485701][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7086.485701][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7086.485701][   T73]      ___sys_sendmsg+0xee/0x170
[ 7086.485701][   T73]      __sys_sendmsg+0xcd/0x170
[ 7086.485701][   T73]      do_syscall_64+0xc6/0x1e0
[ 7086.485701][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7086.485701][   T73] 
[ 7086.487689][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7086.487689][   T73]      netdev_get_by_index+0x5e/0x80
[ 7086.487689][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7086.487689][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7086.487689][   T73]      ip6_route_add+0x1c/0x140
[ 7086.487689][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7086.487689][   T73]      addrconf_add_dev+0xe2/0x170
[ 7086.487689][   T73]      inet6_addr_add+0x12f/0xa40
[ 7086.487689][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7086.487689][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7086.487689][   T73]      netlink_rcv_skb+0x130/0x360
[ 7086.487689][   T73]      netlink_unicast+0x449/0x710
[ 7086.487689][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7086.487689][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7086.487689][   T73]      ___sys_sendmsg+0xee/0x170
[ 7086.487689][   T73]      __sys_sendmsg+0xcd/0x170
[ 7086.487689][   T73]      do_syscall_64+0xc6/0x1e0
[ 7086.487689][   T73] 
[ 7086.489670][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7086.489670][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7086.489670][   T73]      ipv6_find_idev+0x102/0x170
[ 7086.489670][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7086.489670][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7086.489670][   T73]      netlink_rcv_skb+0x130/0x360
[ 7086.489670][   T73]      netlink_unicast+0x449/0x710
[ 7086.489670][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7086.489670][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7086.489670][   T73]      ___sys_sendmsg+0xee/0x170
[ 7086.489670][   T73]      __sys_sendmsg+0xcd/0x170
[ 7086.489670][   T73]      do_syscall_64+0xc6/0x1e0
[ 7086.489670][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7086.489670][   T73] 
[ 7086.491201][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7086.491201][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7086.491201][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7086.491201][   T73]      ipv6_find_idev+0x102/0x170
[ 7086.491201][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7086.491201][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7086.491201][   T73]      netlink_rcv_skb+0x130/0x360
[ 7086.491201][   T73]      netlink_unicast+0x449/0x710
[ 7086.491201][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7086.491201][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7086.491201][   T73]      ___sys_sendmsg+0xee/0x170
[ 7086.491201][   T73]      __sys_sendmsg+0xcd/0x170
[ 7086.491201][   T73]      do_syscall_64+0xc6/0x1e0
[ 7086.491201][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7086.491201][   T73] 
[ 7086.492877][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 7086.493149][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7086.493149][   T73]      netdev_get_by_index+0x5e/0x80
[ 7086.493149][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7086.493149][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7086.493149][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 7086.493149][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 7086.493149][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 7086.493149][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 7086.493149][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 7086.493149][   T73]      addrconf_dad_begin+0x310/0x670
[ 7086.493149][   T73]      addrconf_dad_work+0x10b/0xab0
[ 7086.493149][   T73]      process_one_work+0x84d/0x18a0
[ 7086.493149][   T73]      worker_thread+0x587/0xd30
[ 7086.493149][   T73]      kthread+0x28a/0x350
[ 7086.493149][   T73]      ret_from_fork+0x31/0x70
[ 7086.493149][   T73]      ret_from_fork_asm+0x1a/0x30
[ 7086.493149][   T73] 
[ 7086.495039][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7086.495039][   T73]      netdev_get_by_index+0x5e/0x80
[ 7086.495039][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7086.495039][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7086.495039][   T73]      ip6_route_add+0x1c/0x140
[ 7086.495039][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7086.495039][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7086.495039][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7086.495039][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7086.495039][   T73]      netlink_rcv_skb+0x130/0x360
[ 7086.495039][   T73]      netlink_unicast+0x449/0x710
[ 7086.495039][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7086.495039][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7086.495039][   T73]      ___sys_sendmsg+0xee/0x170
[ 7086.495039][   T73]      __sys_sendmsg+0xcd/0x170
[ 7086.495039][   T73]      do_syscall_64+0xc6/0x1e0
[ 7086.495039][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7086.495039][   T73] 
[ 7086.497015][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7086.497015][   T73]      netdev_get_by_index+0x5e/0x80
[ 7086.497015][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7086.497015][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7086.497015][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7086.497015][   T73]      ipv6_add_addr+0x411/0x2000
[ 7086.497015][   T73]      inet6_addr_add+0x30e/0xa40
[ 7086.497015][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7086.497015][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7086.497015][   T73]      netlink_rcv_skb+0x130/0x360
[ 7086.497015][   T73]      netlink_unicast+0x449/0x710
[ 7086.497015][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7086.497015][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7086.497015][   T73]      ___sys_sendmsg+0xee/0x170
[ 7086.497015][   T73]      __sys_sendmsg+0xcd/0x170
[ 7086.497015][   T73]      do_syscall_64+0xc6/0x1e0
[ 7086.497015][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7086.497015][   T73] 
[ 7086.499018][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7086.499018][   T73]      netdev_get_by_index+0x5e/0x80
[ 7086.499018][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7086.499018][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7086.499018][   T73]      ip6_route_add+0x1c/0x140
[ 7086.499018][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7086.499018][   T73]      addrconf_add_dev+0xe2/0x170
[ 7086.499018][   T73]      inet6_addr_add+0x12f/0xa40
[ 7086.499018][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7086.499018][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7086.499018][   T73]      netlink_rcv_skb+0x130/0x360
[ 7086.499018][   T73]      netlink_unicast+0x449/0x710
[ 7086.499018][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7086.499018][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7086.499018][   T73]      ___sys_sendmsg+0xee/0x170
[ 7086.499018][   T73]      __sys_sendmsg+0xcd/0x170
[ 7086.499018][   T73]      do_syscall_64+0xc6/0x1e0
[ 7086.499018][   T73] 
[ 7086.500960][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7086.500960][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7086.500960][   T73]      ipv6_find_idev+0x102/0x170
[ 7086.500960][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7086.500960][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7086.500960][   T73]      netlink_rcv_skb+0x130/0x360
[ 7086.500960][   T73]      netlink_unicast+0x449/0x710
[ 7086.500960][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7086.500960][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7086.500960][   T73]      ___sys_sendmsg+0xee/0x170
[ 7086.500960][   T73]      __sys_sendmsg+0xcd/0x170
[ 7086.500960][   T73]      do_syscall_64+0xc6/0x1e0
[ 7086.500960][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7086.500960][   T73] 
[ 7086.502489][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7086.502489][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7086.502489][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7086.502489][   T73]      ipv6_find_idev+0x102/0x170
[ 7086.502489][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7086.502489][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7086.502489][   T73]      netlink_rcv_skb+0x130/0x360
[ 7086.502489][   T73]      netlink_unicast+0x449/0x710
[ 7086.502489][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7086.502489][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7086.502489][   T73]      ___sys_sendmsg+0xee/0x170
[ 7086.502489][   T73]      __sys_sendmsg+0xcd/0x170
[ 7086.502489][   T73]      do_syscall_64+0xc6/0x1e0
[ 7086.502489][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7086.502489][   T73] 
[ 7086.504251][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 7086.504516][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7086.504516][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 7086.504516][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 7086.504516][   T73]      fib6_nh_init+0xa22/0x1580
[ 7086.504516][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7086.504516][   T73]      ip6_route_add+0x1c/0x140
[ 7086.504516][   T73]      inet6_rtm_newroute+0x104/0x110
[ 7086.504516][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7086.504516][   T73]      netlink_rcv_skb+0x130/0x360
[ 7086.504516][   T73]      netlink_unicast+0x449/0x710
[ 7086.504516][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7086.504516][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7086.504516][   T73]      ___sys_sendmsg+0xee/0x170
[ 7086.504516][   T73]      __sys_sendmsg+0xcd/0x170
[ 7086.504516][   T73]      do_syscall_64+0xc6/0x1e0
[ 7086.504516][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7086.504516][   T73] 
[ 7086.506568][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 7086.506568][   T73]      dst_init+0x84/0x4a0
[ 7086.506568][   T73]      dst_alloc+0x97/0x150
[ 7086.506568][   T73]      ip6_dst_alloc+0x23/0x90
[ 7086.506568][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 7086.506568][   T73]      ip6_pol_route+0x56f/0x840
[ 7086.506568][   T73]      fib6_rule_lookup+0x456/0x630
[ 7086.506568][   T73]      ip6_route_input+0x59c/0xa50
[ 7086.506568][   T73]      ipv6_rcv+0x397/0x810
[ 7086.506568][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 7086.506568][   T73]      process_backlog+0x101/0x620
[ 7086.506568][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 7086.506568][   T73]      net_rx_action+0x495/0xbe0
[ 7086.506568][   T73]      __do_softirq+0x1b5/0x7f6
[ 7086.506568][   T73] 
[ 7086.508445][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7086.508445][   T73]      netdev_get_by_index+0x5e/0x80
[ 7086.508445][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7086.508445][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7086.508445][   T73]      ip6_route_add+0x1c/0x140
[ 7086.508445][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7086.508445][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7086.508445][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7086.508445][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7086.508445][   T73]      netlink_rcv_skb+0x130/0x360
[ 7086.508445][   T73]      netlink_unicast+0x449/0x710
[ 7086.508445][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7086.508445][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7086.508445][   T73]      ___sys_sendmsg+0xee/0x170
[ 7086.508445][   T73]      __sys_sendmsg+0xcd/0x170
[ 7086.508445][   T73]      do_syscall_64+0xc6/0x1e0
[ 7086.508445][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7086.508445][   T73] 
[ 7086.510664][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7086.510664][   T73]      netdev_get_by_index+0x5e/0x80
[ 7086.510664][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7086.510664][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7086.510664][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7086.510664][   T73]      ipv6_add_addr+0x411/0x2000
[ 7086.510664][   T73]      inet6_addr_add+0x30e/0xa40
[ 7086.510664][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7086.510664][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7086.510664][   T73]      netlink_rcv_skb+0x130/0x360
[ 7086.510664][   T73]      netlink_unicast+0x449/0x710
[ 7086.510664][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7086.510664][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7086.510664][   T73]      ___sys_sendmsg+0xee/0x170
[ 7086.510664][   T73]      __sys_sendmsg+0xcd/0x170
[ 7086.510664][   T73]      do_syscall_64+0xc6/0x1e0
[ 7086.510664][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7086.510664][   T73] 
[ 7086.512903][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7086.512903][   T73]      netdev_get_by_index+0x5e/0x80
[ 7086.512903][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7086.512903][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7086.512903][   T73]      ip6_route_add+0x1c/0x140
[ 7086.512903][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7086.512903][   T73]      addrconf_add_dev+0xe2/0x170
[ 7086.512903][   T73]      inet6_addr_add+0x12f/0xa40
[ 7086.512903][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7086.512903][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7086.512903][   T73]      netlink_rcv_skb+0x130/0x360
[ 7086.512903][   T73]      netlink_unicast+0x449/0x710
[ 7086.512903][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7086.512903][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7086.512903][   T73]      ___sys_sendmsg+0xee/0x170
[ 7086.512903][   T73]      __sys_sendmsg+0xcd/0x170
[ 7086.512903][   T73]      do_syscall_64+0xc6/0x1e0
[ 7086.512903][   T73] 
[ 7086.515027][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7086.515027][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7086.515027][   T73]      ipv6_find_idev+0x102/0x170
[ 7086.515027][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7086.515027][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7086.515027][   T73]      netlink_rcv_skb+0x130/0x360
[ 7086.515027][   T73]      netlink_unicast+0x449/0x710
[ 7086.515027][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7086.515027][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7086.515027][   T73]      ___sys_sendmsg+0xee/0x170
[ 7086.515027][   T73]      __sys_sendmsg+0xcd/0x170
[ 7086.515027][   T73]      do_syscall_64+0xc6/0x1e0
[ 7086.515027][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7086.515027][   T73] 
[ 7086.516796][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7086.516796][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7086.516796][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7086.516796][   T73]      ipv6_find_idev+0x102/0x170
[ 7086.516796][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7086.516796][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7086.516796][   T73]      netlink_rcv_skb+0x130/0x360
[ 7086.516796][   T73]      netlink_unicast+0x449/0x710
[ 7086.516796][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7086.516796][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7086.516796][   T73]      ___sys_sendmsg+0xee/0x170
[ 7086.516796][   T73]      __sys_sendmsg+0xcd/0x170
[ 7086.516796][   T73]      do_syscall_64+0xc6/0x1e0
[ 7086.516796][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7086.516796][   T73] 
[ 7086.518700][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 7086.518969][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7086.518969][   T73]      netdev_get_by_index+0x5e/0x80
[ 7086.518969][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7086.518969][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7086.518969][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 7086.518969][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 7086.518969][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 7086.518969][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 7086.518969][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 7086.518969][   T73]      addrconf_dad_begin+0x310/0x670
[ 7086.518969][   T73]      addrconf_dad_work+0x10b/0xab0
[ 7086.518969][   T73]      process_one_work+0x84d/0x18a0
[ 7086.518969][   T73]      worker_thread+0x587/0xd30
[ 7086.518969][   T73]      kthread+0x28a/0x350
[ 7086.518969][   T73]      ret_from_fork+0x31/0x70
[ 7086.518969][   T73]      ret_from_fork_asm+0x1a/0x30
[ 7086.518969][   T73] 
[ 7086.521127][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7086.521127][   T73]      netdev_get_by_index+0x5e/0x80
[ 7086.521127][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7086.521127][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7086.521127][   T73]      ip6_route_add+0x1c/0x140
[ 7086.521127][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7086.521127][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7086.521127][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7086.521127][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7086.521127][   T73]      netlink_rcv_skb+0x130/0x360
[ 7086.521127][   T73]      netlink_unicast+0x449/0x710
[ 7086.521127][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7086.521127][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7086.521127][   T73]      ___sys_sendmsg+0xee/0x170
[ 7086.521127][   T73]      __sys_sendmsg+0xcd/0x170
[ 7086.521127][   T73]      do_syscall_64+0xc6/0x1e0
[ 7086.521127][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7086.521127][   T73] 
[ 7086.523323][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7086.523323][   T73]      netdev_get_by_index+0x5e/0x80
[ 7086.523323][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7086.523323][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7086.523323][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7086.523323][   T73]      ipv6_add_addr+0x411/0x2000
[ 7086.523323][   T73]      inet6_addr_add+0x30e/0xa40
[ 7086.523323][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7086.523323][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7086.523323][   T73]      netlink_rcv_skb+0x130/0x360
[ 7086.523323][   T73]      netlink_unicast+0x449/0x710
[ 7086.523323][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7086.523323][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7086.523323][   T73]      ___sys_sendmsg+0xee/0x170
[ 7086.523323][   T73]      __sys_sendmsg+0xcd/0x170
[ 7086.523323][   T73]      do_syscall_64+0xc6/0x1e0
[ 7086.523323][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7086.523323][   T73] 
[ 7086.525571][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7086.525571][   T73]      netdev_get_by_index+0x5e/0x80
[ 7086.525571][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7086.525571][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7086.525571][   T73]      ip6_route_add+0x1c/0x140
[ 7086.525571][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7086.525571][   T73]      addrconf_add_dev+0xe2/0x170
[ 7086.525571][   T73]      inet6_addr_add+0x12f/0xa40
[ 7086.525571][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7086.525571][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7086.525571][   T73]      netlink_rcv_skb+0x130/0x360
[ 7086.525571][   T73]      netlink_unicast+0x449/0x710
[ 7086.525571][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7086.525571][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7086.525571][   T73]      ___sys_sendmsg+0xee/0x170
[ 7086.525571][   T73]      __sys_sendmsg+0xcd/0x170
[ 7086.525571][   T73]      do_syscall_64+0xc6/0x1e0
[ 7086.525571][   T73] 
[ 7086.527842][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7086.527842][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7086.527842][   T73]      ipv6_find_idev+0x102/0x170
[ 7086.527842][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7086.527842][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7086.527842][   T73]      netlink_rcv_skb+0x130/0x360
[ 7086.527842][   T73]      netlink_unicast+0x449/0x710
[ 7086.527842][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7086.527842][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7086.527842][   T73]      ___sys_sendmsg+0xee/0x170
[ 7086.527842][   T73]      __sys_sendmsg+0xcd/0x170
[ 7086.527842][   T73]      do_syscall_64+0xc6/0x1e0
[ 7086.527842][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7086.527842][   T73] 
[ 7086.529569][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7086.529569][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7086.529569][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7086.529569][   T73]      ipv6_find_idev+0x102/0x170
[ 7086.529569][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7086.529569][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7086.529569][   T73]      netlink_rcv_skb+0x130/0x360
[ 7086.529569][   T73]      netlink_unicast+0x449/0x710
[ 7086.529569][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7086.529569][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7086.529569][   T73]      ___sys_sendmsg+0xee/0x170
[ 7086.529569][   T73]      __sys_sendmsg+0xcd/0x170
[ 7086.529569][   T73]      do_syscall_64+0xc6/0x1e0
[ 7086.529569][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7086.529569][   T73] 
[ 7096.687756][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 7096.688221][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7096.688221][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 7096.688221][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 7096.688221][   T73]      fib6_nh_init+0xa22/0x1580
[ 7096.688221][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7096.688221][   T73]      ip6_route_add+0x1c/0x140
[ 7096.688221][   T73]      inet6_rtm_newroute+0x104/0x110
[ 7096.688221][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7096.688221][   T73]      netlink_rcv_skb+0x130/0x360
[ 7096.688221][   T73]      netlink_unicast+0x449/0x710
[ 7096.688221][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7096.688221][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7096.688221][   T73]      ___sys_sendmsg+0xee/0x170
[ 7096.688221][   T73]      __sys_sendmsg+0xcd/0x170
[ 7096.688221][   T73]      do_syscall_64+0xc6/0x1e0
[ 7096.688221][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7096.688221][   T73] 
[ 7096.690116][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 7096.690116][   T73]      dst_init+0x84/0x4a0
[ 7096.690116][   T73]      dst_alloc+0x97/0x150
[ 7096.690116][   T73]      ip6_dst_alloc+0x23/0x90
[ 7096.690116][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 7096.690116][   T73]      ip6_pol_route+0x56f/0x840
[ 7096.690116][   T73]      fib6_rule_lookup+0x456/0x630
[ 7096.690116][   T73]      ip6_route_input+0x59c/0xa50
[ 7096.690116][   T73]      ipv6_rcv+0x397/0x810
[ 7096.690116][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 7096.690116][   T73]      process_backlog+0x101/0x620
[ 7096.690116][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 7096.690116][   T73]      net_rx_action+0x495/0xbe0
[ 7096.690116][   T73]      __do_softirq+0x1b5/0x7f6
[ 7096.690116][   T73] 
[ 7096.691767][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7096.691767][   T73]      netdev_get_by_index+0x5e/0x80
[ 7096.691767][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7096.691767][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7096.691767][   T73]      ip6_route_add+0x1c/0x140
[ 7096.691767][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7096.691767][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7096.691767][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7096.691767][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7096.691767][   T73]      netlink_rcv_skb+0x130/0x360
[ 7096.691767][   T73]      netlink_unicast+0x449/0x710
[ 7096.691767][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7096.691767][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7096.691767][   T73]      ___sys_sendmsg+0xee/0x170
[ 7096.691767][   T73]      __sys_sendmsg+0xcd/0x170
[ 7096.691767][   T73]      do_syscall_64+0xc6/0x1e0
[ 7096.691767][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7096.691767][   T73] 
[ 7096.693776][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7096.693776][   T73]      netdev_get_by_index+0x5e/0x80
[ 7096.693776][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7096.693776][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7096.693776][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7096.693776][   T73]      ipv6_add_addr+0x411/0x2000
[ 7096.693776][   T73]      inet6_addr_add+0x30e/0xa40
[ 7096.693776][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7096.693776][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7096.693776][   T73]      netlink_rcv_skb+0x130/0x360
[ 7096.693776][   T73]      netlink_unicast+0x449/0x710
[ 7096.693776][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7096.693776][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7096.693776][   T73]      ___sys_sendmsg+0xee/0x170
[ 7096.693776][   T73]      __sys_sendmsg+0xcd/0x170
[ 7096.693776][   T73]      do_syscall_64+0xc6/0x1e0
[ 7096.693776][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7096.693776][   T73] 
[ 7096.695775][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7096.695775][   T73]      netdev_get_by_index+0x5e/0x80
[ 7096.695775][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7096.695775][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7096.695775][   T73]      ip6_route_add+0x1c/0x140
[ 7096.695775][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7096.695775][   T73]      addrconf_add_dev+0xe2/0x170
[ 7096.695775][   T73]      inet6_addr_add+0x12f/0xa40
[ 7096.695775][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7096.695775][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7096.695775][   T73]      netlink_rcv_skb+0x130/0x360
[ 7096.695775][   T73]      netlink_unicast+0x449/0x710
[ 7096.695775][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7096.695775][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7096.695775][   T73]      ___sys_sendmsg+0xee/0x170
[ 7096.695775][   T73]      __sys_sendmsg+0xcd/0x170
[ 7096.695775][   T73]      do_syscall_64+0xc6/0x1e0
[ 7096.695775][   T73] 
[ 7096.697735][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7096.697735][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7096.697735][   T73]      ipv6_find_idev+0x102/0x170
[ 7096.697735][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7096.697735][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7096.697735][   T73]      netlink_rcv_skb+0x130/0x360
[ 7096.697735][   T73]      netlink_unicast+0x449/0x710
[ 7096.697735][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7096.697735][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7096.697735][   T73]      ___sys_sendmsg+0xee/0x170
[ 7096.697735][   T73]      __sys_sendmsg+0xcd/0x170
[ 7096.697735][   T73]      do_syscall_64+0xc6/0x1e0
[ 7096.697735][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7096.697735][   T73] 
[ 7096.699267][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7096.699267][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7096.699267][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7096.699267][   T73]      ipv6_find_idev+0x102/0x170
[ 7096.699267][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7096.699267][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7096.699267][   T73]      netlink_rcv_skb+0x130/0x360
[ 7096.699267][   T73]      netlink_unicast+0x449/0x710
[ 7096.699267][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7096.699267][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7096.699267][   T73]      ___sys_sendmsg+0xee/0x170
[ 7096.699267][   T73]      __sys_sendmsg+0xcd/0x170
[ 7096.699267][   T73]      do_syscall_64+0xc6/0x1e0
[ 7096.699267][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7096.699267][   T73] 
[ 7096.700939][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 7096.701213][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7096.701213][   T73]      netdev_get_by_index+0x5e/0x80
[ 7096.701213][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7096.701213][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7096.701213][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 7096.701213][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 7096.701213][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 7096.701213][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 7096.701213][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 7096.701213][   T73]      addrconf_dad_begin+0x310/0x670
[ 7096.701213][   T73]      addrconf_dad_work+0x10b/0xab0
[ 7096.701213][   T73]      process_one_work+0x84d/0x18a0
[ 7096.701213][   T73]      worker_thread+0x587/0xd30
[ 7096.701213][   T73]      kthread+0x28a/0x350
[ 7096.701213][   T73]      ret_from_fork+0x31/0x70
[ 7096.701213][   T73]      ret_from_fork_asm+0x1a/0x30
[ 7096.701213][   T73] 
[ 7096.703121][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7096.703121][   T73]      netdev_get_by_index+0x5e/0x80
[ 7096.703121][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7096.703121][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7096.703121][   T73]      ip6_route_add+0x1c/0x140
[ 7096.703121][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7096.703121][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7096.703121][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7096.703121][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7096.703121][   T73]      netlink_rcv_skb+0x130/0x360
[ 7096.703121][   T73]      netlink_unicast+0x449/0x710
[ 7096.703121][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7096.703121][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7096.703121][   T73]      ___sys_sendmsg+0xee/0x170
[ 7096.703121][   T73]      __sys_sendmsg+0xcd/0x170
[ 7096.703121][   T73]      do_syscall_64+0xc6/0x1e0
[ 7096.703121][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7096.703121][   T73] 
[ 7096.705116][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7096.705116][   T73]      netdev_get_by_index+0x5e/0x80
[ 7096.705116][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7096.705116][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7096.705116][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7096.705116][   T73]      ipv6_add_addr+0x411/0x2000
[ 7096.705116][   T73]      inet6_addr_add+0x30e/0xa40
[ 7096.705116][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7096.705116][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7096.705116][   T73]      netlink_rcv_skb+0x130/0x360
[ 7096.705116][   T73]      netlink_unicast+0x449/0x710
[ 7096.705116][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7096.705116][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7096.705116][   T73]      ___sys_sendmsg+0xee/0x170
[ 7096.705116][   T73]      __sys_sendmsg+0xcd/0x170
[ 7096.705116][   T73]      do_syscall_64+0xc6/0x1e0
[ 7096.705116][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7096.705116][   T73] 
[ 7096.707117][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7096.707117][   T73]      netdev_get_by_index+0x5e/0x80
[ 7096.707117][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7096.707117][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7096.707117][   T73]      ip6_route_add+0x1c/0x140
[ 7096.707117][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7096.707117][   T73]      addrconf_add_dev+0xe2/0x170
[ 7096.707117][   T73]      inet6_addr_add+0x12f/0xa40
[ 7096.707117][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7096.707117][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7096.707117][   T73]      netlink_rcv_skb+0x130/0x360
[ 7096.707117][   T73]      netlink_unicast+0x449/0x710
[ 7096.707117][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7096.707117][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7096.707117][   T73]      ___sys_sendmsg+0xee/0x170
[ 7096.707117][   T73]      __sys_sendmsg+0xcd/0x170
[ 7096.707117][   T73]      do_syscall_64+0xc6/0x1e0
[ 7096.707117][   T73] 
[ 7096.709089][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7096.709089][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7096.709089][   T73]      ipv6_find_idev+0x102/0x170
[ 7096.709089][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7096.709089][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7096.709089][   T73]      netlink_rcv_skb+0x130/0x360
[ 7096.709089][   T73]      netlink_unicast+0x449/0x710
[ 7096.709089][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7096.709089][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7096.709089][   T73]      ___sys_sendmsg+0xee/0x170
[ 7096.709089][   T73]      __sys_sendmsg+0xcd/0x170
[ 7096.709089][   T73]      do_syscall_64+0xc6/0x1e0
[ 7096.709089][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7096.709089][   T73] 
[ 7096.710633][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7096.710633][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7096.710633][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7096.710633][   T73]      ipv6_find_idev+0x102/0x170
[ 7096.710633][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7096.710633][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7096.710633][   T73]      netlink_rcv_skb+0x130/0x360
[ 7096.710633][   T73]      netlink_unicast+0x449/0x710
[ 7096.710633][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7096.710633][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7096.710633][   T73]      ___sys_sendmsg+0xee/0x170
[ 7096.710633][   T73]      __sys_sendmsg+0xcd/0x170
[ 7096.710633][   T73]      do_syscall_64+0xc6/0x1e0
[ 7096.710633][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7096.710633][   T73] 
[ 7096.712340][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 7096.712615][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7096.712615][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 7096.712615][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 7096.712615][   T73]      fib6_nh_init+0xa22/0x1580
[ 7096.712615][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7096.712615][   T73]      ip6_route_add+0x1c/0x140
[ 7096.712615][   T73]      inet6_rtm_newroute+0x104/0x110
[ 7096.712615][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7096.712615][   T73]      netlink_rcv_skb+0x130/0x360
[ 7096.712615][   T73]      netlink_unicast+0x449/0x710
[ 7096.712615][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7096.712615][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7096.712615][   T73]      ___sys_sendmsg+0xee/0x170
[ 7096.712615][   T73]      __sys_sendmsg+0xcd/0x170
[ 7096.712615][   T73]      do_syscall_64+0xc6/0x1e0
[ 7096.712615][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7096.712615][   T73] 
[ 7096.714665][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 7096.714665][   T73]      dst_init+0x84/0x4a0
[ 7096.714665][   T73]      dst_alloc+0x97/0x150
[ 7096.714665][   T73]      ip6_dst_alloc+0x23/0x90
[ 7096.714665][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 7096.714665][   T73]      ip6_pol_route+0x56f/0x840
[ 7096.714665][   T73]      fib6_rule_lookup+0x456/0x630
[ 7096.714665][   T73]      ip6_route_input+0x59c/0xa50
[ 7096.714665][   T73]      ipv6_rcv+0x397/0x810
[ 7096.714665][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 7096.714665][   T73]      process_backlog+0x101/0x620
[ 7096.714665][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 7096.714665][   T73]      net_rx_action+0x495/0xbe0
[ 7096.714665][   T73]      __do_softirq+0x1b5/0x7f6
[ 7096.714665][   T73] 
[ 7096.716467][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7096.716467][   T73]      netdev_get_by_index+0x5e/0x80
[ 7096.716467][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7096.716467][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7096.716467][   T73]      ip6_route_add+0x1c/0x140
[ 7096.716467][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7096.716467][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7096.716467][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7096.716467][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7096.716467][   T73]      netlink_rcv_skb+0x130/0x360
[ 7096.716467][   T73]      netlink_unicast+0x449/0x710
[ 7096.716467][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7096.716467][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7096.716467][   T73]      ___sys_sendmsg+0xee/0x170
[ 7096.716467][   T73]      __sys_sendmsg+0xcd/0x170
[ 7096.716467][   T73]      do_syscall_64+0xc6/0x1e0
[ 7096.716467][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7096.716467][   T73] 
[ 7096.718694][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7096.718694][   T73]      netdev_get_by_index+0x5e/0x80
[ 7096.718694][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7096.718694][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7096.718694][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7096.718694][   T73]      ipv6_add_addr+0x411/0x2000
[ 7096.718694][   T73]      inet6_addr_add+0x30e/0xa40
[ 7096.718694][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7096.718694][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7096.718694][   T73]      netlink_rcv_skb+0x130/0x360
[ 7096.718694][   T73]      netlink_unicast+0x449/0x710
[ 7096.718694][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7096.718694][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7096.718694][   T73]      ___sys_sendmsg+0xee/0x170
[ 7096.718694][   T73]      __sys_sendmsg+0xcd/0x170
[ 7096.718694][   T73]      do_syscall_64+0xc6/0x1e0
[ 7096.718694][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7096.718694][   T73] 
[ 7096.720990][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7096.720990][   T73]      netdev_get_by_index+0x5e/0x80
[ 7096.720990][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7096.720990][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7096.720990][   T73]      ip6_route_add+0x1c/0x140
[ 7096.720990][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7096.720990][   T73]      addrconf_add_dev+0xe2/0x170
[ 7096.720990][   T73]      inet6_addr_add+0x12f/0xa40
[ 7096.720990][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7096.720990][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7096.720990][   T73]      netlink_rcv_skb+0x130/0x360
[ 7096.720990][   T73]      netlink_unicast+0x449/0x710
[ 7096.720990][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7096.720990][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7096.720990][   T73]      ___sys_sendmsg+0xee/0x170
[ 7096.720990][   T73]      __sys_sendmsg+0xcd/0x170
[ 7096.720990][   T73]      do_syscall_64+0xc6/0x1e0
[ 7096.720990][   T73] 
[ 7096.723122][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7096.723122][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7096.723122][   T73]      ipv6_find_idev+0x102/0x170
[ 7096.723122][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7096.723122][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7096.723122][   T73]      netlink_rcv_skb+0x130/0x360
[ 7096.723122][   T73]      netlink_unicast+0x449/0x710
[ 7096.723122][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7096.723122][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7096.723122][   T73]      ___sys_sendmsg+0xee/0x170
[ 7096.723122][   T73]      __sys_sendmsg+0xcd/0x170
[ 7096.723122][   T73]      do_syscall_64+0xc6/0x1e0
[ 7096.723122][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7096.723122][   T73] 
[ 7096.724833][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7096.724833][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7096.724833][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7096.724833][   T73]      ipv6_find_idev+0x102/0x170
[ 7096.724833][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7096.724833][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7096.724833][   T73]      netlink_rcv_skb+0x130/0x360
[ 7096.724833][   T73]      netlink_unicast+0x449/0x710
[ 7096.724833][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7096.724833][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7096.724833][   T73]      ___sys_sendmsg+0xee/0x170
[ 7096.724833][   T73]      __sys_sendmsg+0xcd/0x170
[ 7096.724833][   T73]      do_syscall_64+0xc6/0x1e0
[ 7096.724833][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7096.724833][   T73] 
[ 7096.726739][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 7096.727005][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7096.727005][   T73]      netdev_get_by_index+0x5e/0x80
[ 7096.727005][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7096.727005][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7096.727005][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 7096.727005][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 7096.727005][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 7096.727005][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 7096.727005][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 7096.727005][   T73]      addrconf_dad_begin+0x310/0x670
[ 7096.727005][   T73]      addrconf_dad_work+0x10b/0xab0
[ 7096.727005][   T73]      process_one_work+0x84d/0x18a0
[ 7096.727005][   T73]      worker_thread+0x587/0xd30
[ 7096.727005][   T73]      kthread+0x28a/0x350
[ 7096.727005][   T73]      ret_from_fork+0x31/0x70
[ 7096.727005][   T73]      ret_from_fork_asm+0x1a/0x30
[ 7096.727005][   T73] 
[ 7096.729145][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7096.729145][   T73]      netdev_get_by_index+0x5e/0x80
[ 7096.729145][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7096.729145][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7096.729145][   T73]      ip6_route_add+0x1c/0x140
[ 7096.729145][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7096.729145][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7096.729145][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7096.729145][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7096.729145][   T73]      netlink_rcv_skb+0x130/0x360
[ 7096.729145][   T73]      netlink_unicast+0x449/0x710
[ 7096.729145][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7096.729145][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7096.729145][   T73]      ___sys_sendmsg+0xee/0x170
[ 7096.729145][   T73]      __sys_sendmsg+0xcd/0x170
[ 7096.729145][   T73]      do_syscall_64+0xc6/0x1e0
[ 7096.729145][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7096.729145][   T73] 
[ 7096.731372][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7096.731372][   T73]      netdev_get_by_index+0x5e/0x80
[ 7096.731372][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7096.731372][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7096.731372][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7096.731372][   T73]      ipv6_add_addr+0x411/0x2000
[ 7096.731372][   T73]      inet6_addr_add+0x30e/0xa40
[ 7096.731372][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7096.731372][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7096.731372][   T73]      netlink_rcv_skb+0x130/0x360
[ 7096.731372][   T73]      netlink_unicast+0x449/0x710
[ 7096.731372][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7096.731372][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7096.731372][   T73]      ___sys_sendmsg+0xee/0x170
[ 7096.731372][   T73]      __sys_sendmsg+0xcd/0x170
[ 7096.731372][   T73]      do_syscall_64+0xc6/0x1e0
[ 7096.731372][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7096.731372][   T73] 
[ 7096.733598][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7096.733598][   T73]      netdev_get_by_index+0x5e/0x80
[ 7096.733598][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7096.733598][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7096.733598][   T73]      ip6_route_add+0x1c/0x140
[ 7096.733598][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7096.733598][   T73]      addrconf_add_dev+0xe2/0x170
[ 7096.733598][   T73]      inet6_addr_add+0x12f/0xa40
[ 7096.733598][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7096.733598][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7096.733598][   T73]      netlink_rcv_skb+0x130/0x360
[ 7096.733598][   T73]      netlink_unicast+0x449/0x710
[ 7096.733598][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7096.733598][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7096.733598][   T73]      ___sys_sendmsg+0xee/0x170
[ 7096.733598][   T73]      __sys_sendmsg+0xcd/0x170
[ 7096.733598][   T73]      do_syscall_64+0xc6/0x1e0
[ 7096.733598][   T73] 
[ 7096.735786][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7096.735786][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7096.735786][   T73]      ipv6_find_idev+0x102/0x170
[ 7096.735786][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7096.735786][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7096.735786][   T73]      netlink_rcv_skb+0x130/0x360
[ 7096.735786][   T73]      netlink_unicast+0x449/0x710
[ 7096.735786][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7096.735786][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7096.735786][   T73]      ___sys_sendmsg+0xee/0x170
[ 7096.735786][   T73]      __sys_sendmsg+0xcd/0x170
[ 7096.735786][   T73]      do_syscall_64+0xc6/0x1e0
[ 7096.735786][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7096.735786][   T73] 
[ 7096.737493][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7096.737493][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7096.737493][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7096.737493][   T73]      ipv6_find_idev+0x102/0x170
[ 7096.737493][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7096.737493][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7096.737493][   T73]      netlink_rcv_skb+0x130/0x360
[ 7096.737493][   T73]      netlink_unicast+0x449/0x710
[ 7096.737493][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7096.737493][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7096.737493][   T73]      ___sys_sendmsg+0xee/0x170
[ 7096.737493][   T73]      __sys_sendmsg+0xcd/0x170
[ 7096.737493][   T73]      do_syscall_64+0xc6/0x1e0
[ 7096.737493][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7096.737493][   T73] 
[ 7106.775772][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 7106.776228][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7106.776228][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 7106.776228][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 7106.776228][   T73]      fib6_nh_init+0xa22/0x1580
[ 7106.776228][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7106.776228][   T73]      ip6_route_add+0x1c/0x140
[ 7106.776228][   T73]      inet6_rtm_newroute+0x104/0x110
[ 7106.776228][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7106.776228][   T73]      netlink_rcv_skb+0x130/0x360
[ 7106.776228][   T73]      netlink_unicast+0x449/0x710
[ 7106.776228][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7106.776228][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7106.776228][   T73]      ___sys_sendmsg+0xee/0x170
[ 7106.776228][   T73]      __sys_sendmsg+0xcd/0x170
[ 7106.776228][   T73]      do_syscall_64+0xc6/0x1e0
[ 7106.776228][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7106.776228][   T73] 
[ 7106.778111][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 7106.778111][   T73]      dst_init+0x84/0x4a0
[ 7106.778111][   T73]      dst_alloc+0x97/0x150
[ 7106.778111][   T73]      ip6_dst_alloc+0x23/0x90
[ 7106.778111][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 7106.778111][   T73]      ip6_pol_route+0x56f/0x840
[ 7106.778111][   T73]      fib6_rule_lookup+0x456/0x630
[ 7106.778111][   T73]      ip6_route_input+0x59c/0xa50
[ 7106.778111][   T73]      ipv6_rcv+0x397/0x810
[ 7106.778111][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 7106.778111][   T73]      process_backlog+0x101/0x620
[ 7106.778111][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 7106.778111][   T73]      net_rx_action+0x495/0xbe0
[ 7106.778111][   T73]      __do_softirq+0x1b5/0x7f6
[ 7106.778111][   T73] 
[ 7106.779745][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7106.779745][   T73]      netdev_get_by_index+0x5e/0x80
[ 7106.779745][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7106.779745][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7106.779745][   T73]      ip6_route_add+0x1c/0x140
[ 7106.779745][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7106.779745][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7106.779745][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7106.779745][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7106.779745][   T73]      netlink_rcv_skb+0x130/0x360
[ 7106.779745][   T73]      netlink_unicast+0x449/0x710
[ 7106.779745][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7106.779745][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7106.779745][   T73]      ___sys_sendmsg+0xee/0x170
[ 7106.779745][   T73]      __sys_sendmsg+0xcd/0x170
[ 7106.779745][   T73]      do_syscall_64+0xc6/0x1e0
[ 7106.779745][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7106.779745][   T73] 
[ 7106.781759][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7106.781759][   T73]      netdev_get_by_index+0x5e/0x80
[ 7106.781759][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7106.781759][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7106.781759][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7106.781759][   T73]      ipv6_add_addr+0x411/0x2000
[ 7106.781759][   T73]      inet6_addr_add+0x30e/0xa40
[ 7106.781759][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7106.781759][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7106.781759][   T73]      netlink_rcv_skb+0x130/0x360
[ 7106.781759][   T73]      netlink_unicast+0x449/0x710
[ 7106.781759][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7106.781759][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7106.781759][   T73]      ___sys_sendmsg+0xee/0x170
[ 7106.781759][   T73]      __sys_sendmsg+0xcd/0x170
[ 7106.781759][   T73]      do_syscall_64+0xc6/0x1e0
[ 7106.781759][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7106.781759][   T73] 
[ 7106.783748][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7106.783748][   T73]      netdev_get_by_index+0x5e/0x80
[ 7106.783748][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7106.783748][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7106.783748][   T73]      ip6_route_add+0x1c/0x140
[ 7106.783748][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7106.783748][   T73]      addrconf_add_dev+0xe2/0x170
[ 7106.783748][   T73]      inet6_addr_add+0x12f/0xa40
[ 7106.783748][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7106.783748][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7106.783748][   T73]      netlink_rcv_skb+0x130/0x360
[ 7106.783748][   T73]      netlink_unicast+0x449/0x710
[ 7106.783748][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7106.783748][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7106.783748][   T73]      ___sys_sendmsg+0xee/0x170
[ 7106.783748][   T73]      __sys_sendmsg+0xcd/0x170
[ 7106.783748][   T73]      do_syscall_64+0xc6/0x1e0
[ 7106.783748][   T73] 
[ 7106.785711][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7106.785711][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7106.785711][   T73]      ipv6_find_idev+0x102/0x170
[ 7106.785711][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7106.785711][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7106.785711][   T73]      netlink_rcv_skb+0x130/0x360
[ 7106.785711][   T73]      netlink_unicast+0x449/0x710
[ 7106.785711][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7106.785711][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7106.785711][   T73]      ___sys_sendmsg+0xee/0x170
[ 7106.785711][   T73]      __sys_sendmsg+0xcd/0x170
[ 7106.785711][   T73]      do_syscall_64+0xc6/0x1e0
[ 7106.785711][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7106.785711][   T73] 
[ 7106.787238][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7106.787238][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7106.787238][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7106.787238][   T73]      ipv6_find_idev+0x102/0x170
[ 7106.787238][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7106.787238][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7106.787238][   T73]      netlink_rcv_skb+0x130/0x360
[ 7106.787238][   T73]      netlink_unicast+0x449/0x710
[ 7106.787238][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7106.787238][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7106.787238][   T73]      ___sys_sendmsg+0xee/0x170
[ 7106.787238][   T73]      __sys_sendmsg+0xcd/0x170
[ 7106.787238][   T73]      do_syscall_64+0xc6/0x1e0
[ 7106.787238][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7106.787238][   T73] 
[ 7106.788936][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 7106.789222][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7106.789222][   T73]      netdev_get_by_index+0x5e/0x80
[ 7106.789222][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7106.789222][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7106.789222][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 7106.789222][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 7106.789222][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 7106.789222][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 7106.789222][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 7106.789222][   T73]      addrconf_dad_begin+0x310/0x670
[ 7106.789222][   T73]      addrconf_dad_work+0x10b/0xab0
[ 7106.789222][   T73]      process_one_work+0x84d/0x18a0
[ 7106.789222][   T73]      worker_thread+0x587/0xd30
[ 7106.789222][   T73]      kthread+0x28a/0x350
[ 7106.789222][   T73]      ret_from_fork+0x31/0x70
[ 7106.789222][   T73]      ret_from_fork_asm+0x1a/0x30
[ 7106.789222][   T73] 
[ 7106.791125][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7106.791125][   T73]      netdev_get_by_index+0x5e/0x80
[ 7106.791125][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7106.791125][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7106.791125][   T73]      ip6_route_add+0x1c/0x140
[ 7106.791125][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7106.791125][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7106.791125][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7106.791125][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7106.791125][   T73]      netlink_rcv_skb+0x130/0x360
[ 7106.791125][   T73]      netlink_unicast+0x449/0x710
[ 7106.791125][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7106.791125][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7106.791125][   T73]      ___sys_sendmsg+0xee/0x170
[ 7106.791125][   T73]      __sys_sendmsg+0xcd/0x170
[ 7106.791125][   T73]      do_syscall_64+0xc6/0x1e0
[ 7106.791125][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7106.791125][   T73] 
[ 7106.793132][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7106.793132][   T73]      netdev_get_by_index+0x5e/0x80
[ 7106.793132][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7106.793132][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7106.793132][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7106.793132][   T73]      ipv6_add_addr+0x411/0x2000
[ 7106.793132][   T73]      inet6_addr_add+0x30e/0xa40
[ 7106.793132][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7106.793132][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7106.793132][   T73]      netlink_rcv_skb+0x130/0x360
[ 7106.793132][   T73]      netlink_unicast+0x449/0x710
[ 7106.793132][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7106.793132][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7106.793132][   T73]      ___sys_sendmsg+0xee/0x170
[ 7106.793132][   T73]      __sys_sendmsg+0xcd/0x170
[ 7106.793132][   T73]      do_syscall_64+0xc6/0x1e0
[ 7106.793132][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7106.793132][   T73] 
[ 7106.795127][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7106.795127][   T73]      netdev_get_by_index+0x5e/0x80
[ 7106.795127][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7106.795127][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7106.795127][   T73]      ip6_route_add+0x1c/0x140
[ 7106.795127][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7106.795127][   T73]      addrconf_add_dev+0xe2/0x170
[ 7106.795127][   T73]      inet6_addr_add+0x12f/0xa40
[ 7106.795127][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7106.795127][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7106.795127][   T73]      netlink_rcv_skb+0x130/0x360
[ 7106.795127][   T73]      netlink_unicast+0x449/0x710
[ 7106.795127][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7106.795127][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7106.795127][   T73]      ___sys_sendmsg+0xee/0x170
[ 7106.795127][   T73]      __sys_sendmsg+0xcd/0x170
[ 7106.795127][   T73]      do_syscall_64+0xc6/0x1e0
[ 7106.795127][   T73] 
[ 7106.797094][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7106.797094][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7106.797094][   T73]      ipv6_find_idev+0x102/0x170
[ 7106.797094][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7106.797094][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7106.797094][   T73]      netlink_rcv_skb+0x130/0x360
[ 7106.797094][   T73]      netlink_unicast+0x449/0x710
[ 7106.797094][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7106.797094][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7106.797094][   T73]      ___sys_sendmsg+0xee/0x170
[ 7106.797094][   T73]      __sys_sendmsg+0xcd/0x170
[ 7106.797094][   T73]      do_syscall_64+0xc6/0x1e0
[ 7106.797094][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7106.797094][   T73] 
[ 7106.798643][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7106.798643][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7106.798643][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7106.798643][   T73]      ipv6_find_idev+0x102/0x170
[ 7106.798643][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7106.798643][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7106.798643][   T73]      netlink_rcv_skb+0x130/0x360
[ 7106.798643][   T73]      netlink_unicast+0x449/0x710
[ 7106.798643][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7106.798643][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7106.798643][   T73]      ___sys_sendmsg+0xee/0x170
[ 7106.798643][   T73]      __sys_sendmsg+0xcd/0x170
[ 7106.798643][   T73]      do_syscall_64+0xc6/0x1e0
[ 7106.798643][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7106.798643][   T73] 
[ 7106.800326][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 7106.800600][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7106.800600][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 7106.800600][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 7106.800600][   T73]      fib6_nh_init+0xa22/0x1580
[ 7106.800600][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7106.800600][   T73]      ip6_route_add+0x1c/0x140
[ 7106.800600][   T73]      inet6_rtm_newroute+0x104/0x110
[ 7106.800600][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7106.800600][   T73]      netlink_rcv_skb+0x130/0x360
[ 7106.800600][   T73]      netlink_unicast+0x449/0x710
[ 7106.800600][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7106.800600][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7106.800600][   T73]      ___sys_sendmsg+0xee/0x170
[ 7106.800600][   T73]      __sys_sendmsg+0xcd/0x170
[ 7106.800600][   T73]      do_syscall_64+0xc6/0x1e0
[ 7106.800600][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7106.800600][   T73] 
[ 7106.802677][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 7106.802677][   T73]      dst_init+0x84/0x4a0
[ 7106.802677][   T73]      dst_alloc+0x97/0x150
[ 7106.802677][   T73]      ip6_dst_alloc+0x23/0x90
[ 7106.802677][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 7106.802677][   T73]      ip6_pol_route+0x56f/0x840
[ 7106.802677][   T73]      fib6_rule_lookup+0x456/0x630
[ 7106.802677][   T73]      ip6_route_input+0x59c/0xa50
[ 7106.802677][   T73]      ipv6_rcv+0x397/0x810
[ 7106.802677][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 7106.802677][   T73]      process_backlog+0x101/0x620
[ 7106.802677][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 7106.802677][   T73]      net_rx_action+0x495/0xbe0
[ 7106.802677][   T73]      __do_softirq+0x1b5/0x7f6
[ 7106.802677][   T73] 
[ 7106.804555][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7106.804555][   T73]      netdev_get_by_index+0x5e/0x80
[ 7106.804555][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7106.804555][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7106.804555][   T73]      ip6_route_add+0x1c/0x140
[ 7106.804555][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7106.804555][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7106.804555][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7106.804555][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7106.804555][   T73]      netlink_rcv_skb+0x130/0x360
[ 7106.804555][   T73]      netlink_unicast+0x449/0x710
[ 7106.804555][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7106.804555][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7106.804555][   T73]      ___sys_sendmsg+0xee/0x170
[ 7106.804555][   T73]      __sys_sendmsg+0xcd/0x170
[ 7106.804555][   T73]      do_syscall_64+0xc6/0x1e0
[ 7106.804555][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7106.804555][   T73] 
[ 7106.806815][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7106.806815][   T73]      netdev_get_by_index+0x5e/0x80
[ 7106.806815][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7106.806815][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7106.806815][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7106.806815][   T73]      ipv6_add_addr+0x411/0x2000
[ 7106.806815][   T73]      inet6_addr_add+0x30e/0xa40
[ 7106.806815][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7106.806815][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7106.806815][   T73]      netlink_rcv_skb+0x130/0x360
[ 7106.806815][   T73]      netlink_unicast+0x449/0x710
[ 7106.806815][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7106.806815][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7106.806815][   T73]      ___sys_sendmsg+0xee/0x170
[ 7106.806815][   T73]      __sys_sendmsg+0xcd/0x170
[ 7106.806815][   T73]      do_syscall_64+0xc6/0x1e0
[ 7106.806815][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7106.806815][   T73] 
[ 7106.809047][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7106.809047][   T73]      netdev_get_by_index+0x5e/0x80
[ 7106.809047][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7106.809047][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7106.809047][   T73]      ip6_route_add+0x1c/0x140
[ 7106.809047][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7106.809047][   T73]      addrconf_add_dev+0xe2/0x170
[ 7106.809047][   T73]      inet6_addr_add+0x12f/0xa40
[ 7106.809047][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7106.809047][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7106.809047][   T73]      netlink_rcv_skb+0x130/0x360
[ 7106.809047][   T73]      netlink_unicast+0x449/0x710
[ 7106.809047][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7106.809047][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7106.809047][   T73]      ___sys_sendmsg+0xee/0x170
[ 7106.809047][   T73]      __sys_sendmsg+0xcd/0x170
[ 7106.809047][   T73]      do_syscall_64+0xc6/0x1e0
[ 7106.809047][   T73] 
[ 7106.811199][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7106.811199][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7106.811199][   T73]      ipv6_find_idev+0x102/0x170
[ 7106.811199][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7106.811199][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7106.811199][   T73]      netlink_rcv_skb+0x130/0x360
[ 7106.811199][   T73]      netlink_unicast+0x449/0x710
[ 7106.811199][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7106.811199][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7106.811199][   T73]      ___sys_sendmsg+0xee/0x170
[ 7106.811199][   T73]      __sys_sendmsg+0xcd/0x170
[ 7106.811199][   T73]      do_syscall_64+0xc6/0x1e0
[ 7106.811199][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7106.811199][   T73] 
[ 7106.812988][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7106.812988][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7106.812988][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7106.812988][   T73]      ipv6_find_idev+0x102/0x170
[ 7106.812988][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7106.812988][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7106.812988][   T73]      netlink_rcv_skb+0x130/0x360
[ 7106.812988][   T73]      netlink_unicast+0x449/0x710
[ 7106.812988][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7106.812988][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7106.812988][   T73]      ___sys_sendmsg+0xee/0x170
[ 7106.812988][   T73]      __sys_sendmsg+0xcd/0x170
[ 7106.812988][   T73]      do_syscall_64+0xc6/0x1e0
[ 7106.812988][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7106.812988][   T73] 
[ 7106.814907][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 7106.815174][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7106.815174][   T73]      netdev_get_by_index+0x5e/0x80
[ 7106.815174][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7106.815174][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7106.815174][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 7106.815174][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 7106.815174][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 7106.815174][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 7106.815174][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 7106.815174][   T73]      addrconf_dad_begin+0x310/0x670
[ 7106.815174][   T73]      addrconf_dad_work+0x10b/0xab0
[ 7106.815174][   T73]      process_one_work+0x84d/0x18a0
[ 7106.815174][   T73]      worker_thread+0x587/0xd30
[ 7106.815174][   T73]      kthread+0x28a/0x350
[ 7106.815174][   T73]      ret_from_fork+0x31/0x70
[ 7106.815174][   T73]      ret_from_fork_asm+0x1a/0x30
[ 7106.815174][   T73] 
[ 7106.817351][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7106.817351][   T73]      netdev_get_by_index+0x5e/0x80
[ 7106.817351][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7106.817351][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7106.817351][   T73]      ip6_route_add+0x1c/0x140
[ 7106.817351][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7106.817351][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7106.817351][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7106.817351][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7106.817351][   T73]      netlink_rcv_skb+0x130/0x360
[ 7106.817351][   T73]      netlink_unicast+0x449/0x710
[ 7106.817351][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7106.817351][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7106.817351][   T73]      ___sys_sendmsg+0xee/0x170
[ 7106.817351][   T73]      __sys_sendmsg+0xcd/0x170
[ 7106.817351][   T73]      do_syscall_64+0xc6/0x1e0
[ 7106.817351][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7106.817351][   T73] 
[ 7106.819526][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7106.819526][   T73]      netdev_get_by_index+0x5e/0x80
[ 7106.819526][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7106.819526][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7106.819526][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7106.819526][   T73]      ipv6_add_addr+0x411/0x2000
[ 7106.819526][   T73]      inet6_addr_add+0x30e/0xa40
[ 7106.819526][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7106.819526][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7106.819526][   T73]      netlink_rcv_skb+0x130/0x360
[ 7106.819526][   T73]      netlink_unicast+0x449/0x710
[ 7106.819526][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7106.819526][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7106.819526][   T73]      ___sys_sendmsg+0xee/0x170
[ 7106.819526][   T73]      __sys_sendmsg+0xcd/0x170
[ 7106.819526][   T73]      do_syscall_64+0xc6/0x1e0
[ 7106.819526][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7106.819526][   T73] 
[ 7106.821774][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7106.821774][   T73]      netdev_get_by_index+0x5e/0x80
[ 7106.821774][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7106.821774][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7106.821774][   T73]      ip6_route_add+0x1c/0x140
[ 7106.821774][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7106.821774][   T73]      addrconf_add_dev+0xe2/0x170
[ 7106.821774][   T73]      inet6_addr_add+0x12f/0xa40
[ 7106.821774][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7106.821774][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7106.821774][   T73]      netlink_rcv_skb+0x130/0x360
[ 7106.821774][   T73]      netlink_unicast+0x449/0x710
[ 7106.821774][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7106.821774][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7106.821774][   T73]      ___sys_sendmsg+0xee/0x170
[ 7106.821774][   T73]      __sys_sendmsg+0xcd/0x170
[ 7106.821774][   T73]      do_syscall_64+0xc6/0x1e0
[ 7106.821774][   T73] 
[ 7106.824037][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7106.824037][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7106.824037][   T73]      ipv6_find_idev+0x102/0x170
[ 7106.824037][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7106.824037][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7106.824037][   T73]      netlink_rcv_skb+0x130/0x360
[ 7106.824037][   T73]      netlink_unicast+0x449/0x710
[ 7106.824037][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7106.824037][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7106.824037][   T73]      ___sys_sendmsg+0xee/0x170
[ 7106.824037][   T73]      __sys_sendmsg+0xcd/0x170
[ 7106.824037][   T73]      do_syscall_64+0xc6/0x1e0
[ 7106.824037][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7106.824037][   T73] 
[ 7106.825760][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7106.825760][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7106.825760][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7106.825760][   T73]      ipv6_find_idev+0x102/0x170
[ 7106.825760][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7106.825760][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7106.825760][   T73]      netlink_rcv_skb+0x130/0x360
[ 7106.825760][   T73]      netlink_unicast+0x449/0x710
[ 7106.825760][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7106.825760][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7106.825760][   T73]      ___sys_sendmsg+0xee/0x170
[ 7106.825760][   T73]      __sys_sendmsg+0xcd/0x170
[ 7106.825760][   T73]      do_syscall_64+0xc6/0x1e0
[ 7106.825760][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7106.825760][   T73] 
[ 7117.079685][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 7117.080127][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7117.080127][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 7117.080127][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 7117.080127][   T73]      fib6_nh_init+0xa22/0x1580
[ 7117.080127][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7117.080127][   T73]      ip6_route_add+0x1c/0x140
[ 7117.080127][   T73]      inet6_rtm_newroute+0x104/0x110
[ 7117.080127][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7117.080127][   T73]      netlink_rcv_skb+0x130/0x360
[ 7117.080127][   T73]      netlink_unicast+0x449/0x710
[ 7117.080127][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7117.080127][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7117.080127][   T73]      ___sys_sendmsg+0xee/0x170
[ 7117.080127][   T73]      __sys_sendmsg+0xcd/0x170
[ 7117.080127][   T73]      do_syscall_64+0xc6/0x1e0
[ 7117.080127][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7117.080127][   T73] 
[ 7117.082069][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 7117.082069][   T73]      dst_init+0x84/0x4a0
[ 7117.082069][   T73]      dst_alloc+0x97/0x150
[ 7117.082069][   T73]      ip6_dst_alloc+0x23/0x90
[ 7117.082069][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 7117.082069][   T73]      ip6_pol_route+0x56f/0x840
[ 7117.082069][   T73]      fib6_rule_lookup+0x456/0x630
[ 7117.082069][   T73]      ip6_route_input+0x59c/0xa50
[ 7117.082069][   T73]      ipv6_rcv+0x397/0x810
[ 7117.082069][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 7117.082069][   T73]      process_backlog+0x101/0x620
[ 7117.082069][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 7117.082069][   T73]      net_rx_action+0x495/0xbe0
[ 7117.082069][   T73]      __do_softirq+0x1b5/0x7f6
[ 7117.082069][   T73] 
[ 7117.083722][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7117.083722][   T73]      netdev_get_by_index+0x5e/0x80
[ 7117.083722][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7117.083722][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7117.083722][   T73]      ip6_route_add+0x1c/0x140
[ 7117.083722][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7117.083722][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7117.083722][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7117.083722][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7117.083722][   T73]      netlink_rcv_skb+0x130/0x360
[ 7117.083722][   T73]      netlink_unicast+0x449/0x710
[ 7117.083722][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7117.083722][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7117.083722][   T73]      ___sys_sendmsg+0xee/0x170
[ 7117.083722][   T73]      __sys_sendmsg+0xcd/0x170
[ 7117.083722][   T73]      do_syscall_64+0xc6/0x1e0
[ 7117.083722][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7117.083722][   T73] 
[ 7117.085725][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7117.085725][   T73]      netdev_get_by_index+0x5e/0x80
[ 7117.085725][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7117.085725][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7117.085725][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7117.085725][   T73]      ipv6_add_addr+0x411/0x2000
[ 7117.085725][   T73]      inet6_addr_add+0x30e/0xa40
[ 7117.085725][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7117.085725][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7117.085725][   T73]      netlink_rcv_skb+0x130/0x360
[ 7117.085725][   T73]      netlink_unicast+0x449/0x710
[ 7117.085725][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7117.085725][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7117.085725][   T73]      ___sys_sendmsg+0xee/0x170
[ 7117.085725][   T73]      __sys_sendmsg+0xcd/0x170
[ 7117.085725][   T73]      do_syscall_64+0xc6/0x1e0
[ 7117.085725][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7117.085725][   T73] 
[ 7117.087731][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7117.087731][   T73]      netdev_get_by_index+0x5e/0x80
[ 7117.087731][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7117.087731][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7117.087731][   T73]      ip6_route_add+0x1c/0x140
[ 7117.087731][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7117.087731][   T73]      addrconf_add_dev+0xe2/0x170
[ 7117.087731][   T73]      inet6_addr_add+0x12f/0xa40
[ 7117.087731][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7117.087731][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7117.087731][   T73]      netlink_rcv_skb+0x130/0x360
[ 7117.087731][   T73]      netlink_unicast+0x449/0x710
[ 7117.087731][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7117.087731][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7117.087731][   T73]      ___sys_sendmsg+0xee/0x170
[ 7117.087731][   T73]      __sys_sendmsg+0xcd/0x170
[ 7117.087731][   T73]      do_syscall_64+0xc6/0x1e0
[ 7117.087731][   T73] 
[ 7117.090214][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7117.090214][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7117.090214][   T73]      ipv6_find_idev+0x102/0x170
[ 7117.090214][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7117.090214][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7117.090214][   T73]      netlink_rcv_skb+0x130/0x360
[ 7117.090214][   T73]      netlink_unicast+0x449/0x710
[ 7117.090214][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7117.090214][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7117.090214][   T73]      ___sys_sendmsg+0xee/0x170
[ 7117.090214][   T73]      __sys_sendmsg+0xcd/0x170
[ 7117.090214][   T73]      do_syscall_64+0xc6/0x1e0
[ 7117.090214][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7117.090214][   T73] 
[ 7117.091766][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7117.091766][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7117.091766][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7117.091766][   T73]      ipv6_find_idev+0x102/0x170
[ 7117.091766][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7117.091766][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7117.091766][   T73]      netlink_rcv_skb+0x130/0x360
[ 7117.091766][   T73]      netlink_unicast+0x449/0x710
[ 7117.091766][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7117.091766][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7117.091766][   T73]      ___sys_sendmsg+0xee/0x170
[ 7117.091766][   T73]      __sys_sendmsg+0xcd/0x170
[ 7117.091766][   T73]      do_syscall_64+0xc6/0x1e0
[ 7117.091766][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7117.091766][   T73] 
[ 7117.093456][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 7117.093753][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7117.093753][   T73]      netdev_get_by_index+0x5e/0x80
[ 7117.093753][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7117.093753][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7117.093753][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 7117.093753][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 7117.093753][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 7117.093753][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 7117.093753][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 7117.093753][   T73]      addrconf_dad_begin+0x310/0x670
[ 7117.093753][   T73]      addrconf_dad_work+0x10b/0xab0
[ 7117.093753][   T73]      process_one_work+0x84d/0x18a0
[ 7117.093753][   T73]      worker_thread+0x587/0xd30
[ 7117.093753][   T73]      kthread+0x28a/0x350
[ 7117.093753][   T73]      ret_from_fork+0x31/0x70
[ 7117.093753][   T73]      ret_from_fork_asm+0x1a/0x30
[ 7117.093753][   T73] 
[ 7117.095677][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7117.095677][   T73]      netdev_get_by_index+0x5e/0x80
[ 7117.095677][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7117.095677][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7117.095677][   T73]      ip6_route_add+0x1c/0x140
[ 7117.095677][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7117.095677][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7117.095677][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7117.095677][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7117.095677][   T73]      netlink_rcv_skb+0x130/0x360
[ 7117.095677][   T73]      netlink_unicast+0x449/0x710
[ 7117.095677][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7117.095677][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7117.095677][   T73]      ___sys_sendmsg+0xee/0x170
[ 7117.095677][   T73]      __sys_sendmsg+0xcd/0x170
[ 7117.095677][   T73]      do_syscall_64+0xc6/0x1e0
[ 7117.095677][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7117.095677][   T73] 
[ 7117.097688][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7117.097688][   T73]      netdev_get_by_index+0x5e/0x80
[ 7117.097688][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7117.097688][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7117.097688][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7117.097688][   T73]      ipv6_add_addr+0x411/0x2000
[ 7117.097688][   T73]      inet6_addr_add+0x30e/0xa40
[ 7117.097688][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7117.097688][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7117.097688][   T73]      netlink_rcv_skb+0x130/0x360
[ 7117.097688][   T73]      netlink_unicast+0x449/0x710
[ 7117.097688][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7117.097688][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7117.097688][   T73]      ___sys_sendmsg+0xee/0x170
[ 7117.097688][   T73]      __sys_sendmsg+0xcd/0x170
[ 7117.097688][   T73]      do_syscall_64+0xc6/0x1e0
[ 7117.097688][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7117.097688][   T73] 
[ 7117.099702][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7117.099702][   T73]      netdev_get_by_index+0x5e/0x80
[ 7117.099702][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7117.099702][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7117.099702][   T73]      ip6_route_add+0x1c/0x140
[ 7117.099702][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7117.099702][   T73]      addrconf_add_dev+0xe2/0x170
[ 7117.099702][   T73]      inet6_addr_add+0x12f/0xa40
[ 7117.099702][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7117.099702][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7117.099702][   T73]      netlink_rcv_skb+0x130/0x360
[ 7117.099702][   T73]      netlink_unicast+0x449/0x710
[ 7117.099702][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7117.099702][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7117.099702][   T73]      ___sys_sendmsg+0xee/0x170
[ 7117.099702][   T73]      __sys_sendmsg+0xcd/0x170
[ 7117.099702][   T73]      do_syscall_64+0xc6/0x1e0
[ 7117.099702][   T73] 
[ 7117.101686][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7117.101686][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7117.101686][   T73]      ipv6_find_idev+0x102/0x170
[ 7117.101686][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7117.101686][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7117.101686][   T73]      netlink_rcv_skb+0x130/0x360
[ 7117.101686][   T73]      netlink_unicast+0x449/0x710
[ 7117.101686][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7117.101686][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7117.101686][   T73]      ___sys_sendmsg+0xee/0x170
[ 7117.101686][   T73]      __sys_sendmsg+0xcd/0x170
[ 7117.101686][   T73]      do_syscall_64+0xc6/0x1e0
[ 7117.101686][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7117.101686][   T73] 
[ 7117.103235][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7117.103235][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7117.103235][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7117.103235][   T73]      ipv6_find_idev+0x102/0x170
[ 7117.103235][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7117.103235][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7117.103235][   T73]      netlink_rcv_skb+0x130/0x360
[ 7117.103235][   T73]      netlink_unicast+0x449/0x710
[ 7117.103235][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7117.103235][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7117.103235][   T73]      ___sys_sendmsg+0xee/0x170
[ 7117.103235][   T73]      __sys_sendmsg+0xcd/0x170
[ 7117.103235][   T73]      do_syscall_64+0xc6/0x1e0
[ 7117.103235][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7117.103235][   T73] 
[ 7117.104925][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 7117.105199][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7117.105199][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 7117.105199][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 7117.105199][   T73]      fib6_nh_init+0xa22/0x1580
[ 7117.105199][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7117.105199][   T73]      ip6_route_add+0x1c/0x140
[ 7117.105199][   T73]      inet6_rtm_newroute+0x104/0x110
[ 7117.105199][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7117.105199][   T73]      netlink_rcv_skb+0x130/0x360
[ 7117.105199][   T73]      netlink_unicast+0x449/0x710
[ 7117.105199][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7117.105199][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7117.105199][   T73]      ___sys_sendmsg+0xee/0x170
[ 7117.105199][   T73]      __sys_sendmsg+0xcd/0x170
[ 7117.105199][   T73]      do_syscall_64+0xc6/0x1e0
[ 7117.105199][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7117.105199][   T73] 
[ 7117.107283][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 7117.107283][   T73]      dst_init+0x84/0x4a0
[ 7117.107283][   T73]      dst_alloc+0x97/0x150
[ 7117.107283][   T73]      ip6_dst_alloc+0x23/0x90
[ 7117.107283][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 7117.107283][   T73]      ip6_pol_route+0x56f/0x840
[ 7117.107283][   T73]      fib6_rule_lookup+0x456/0x630
[ 7117.107283][   T73]      ip6_route_input+0x59c/0xa50
[ 7117.107283][   T73]      ipv6_rcv+0x397/0x810
[ 7117.107283][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 7117.107283][   T73]      process_backlog+0x101/0x620
[ 7117.107283][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 7117.107283][   T73]      net_rx_action+0x495/0xbe0
[ 7117.107283][   T73]      __do_softirq+0x1b5/0x7f6
[ 7117.107283][   T73] 
[ 7117.109109][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7117.109109][   T73]      netdev_get_by_index+0x5e/0x80
[ 7117.109109][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7117.109109][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7117.109109][   T73]      ip6_route_add+0x1c/0x140
[ 7117.109109][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7117.109109][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7117.109109][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7117.109109][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7117.109109][   T73]      netlink_rcv_skb+0x130/0x360
[ 7117.109109][   T73]      netlink_unicast+0x449/0x710
[ 7117.109109][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7117.109109][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7117.109109][   T73]      ___sys_sendmsg+0xee/0x170
[ 7117.109109][   T73]      __sys_sendmsg+0xcd/0x170
[ 7117.109109][   T73]      do_syscall_64+0xc6/0x1e0
[ 7117.109109][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7117.109109][   T73] 
[ 7117.113632][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7117.113632][   T73]      netdev_get_by_index+0x5e/0x80
[ 7117.113632][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7117.113632][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7117.113632][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7117.113632][   T73]      ipv6_add_addr+0x411/0x2000
[ 7117.113632][   T73]      inet6_addr_add+0x30e/0xa40
[ 7117.113632][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7117.113632][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7117.113632][   T73]      netlink_rcv_skb+0x130/0x360
[ 7117.113632][   T73]      netlink_unicast+0x449/0x710
[ 7117.113632][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7117.113632][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7117.113632][   T73]      ___sys_sendmsg+0xee/0x170
[ 7117.113632][   T73]      __sys_sendmsg+0xcd/0x170
[ 7117.113632][   T73]      do_syscall_64+0xc6/0x1e0
[ 7117.113632][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7117.113632][   T73] 
[ 7117.115956][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7117.115956][   T73]      netdev_get_by_index+0x5e/0x80
[ 7117.115956][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7117.115956][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7117.115956][   T73]      ip6_route_add+0x1c/0x140
[ 7117.115956][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7117.115956][   T73]      addrconf_add_dev+0xe2/0x170
[ 7117.115956][   T73]      inet6_addr_add+0x12f/0xa40
[ 7117.115956][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7117.115956][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7117.115956][   T73]      netlink_rcv_skb+0x130/0x360
[ 7117.115956][   T73]      netlink_unicast+0x449/0x710
[ 7117.115956][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7117.115956][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7117.115956][   T73]      ___sys_sendmsg+0xee/0x170
[ 7117.115956][   T73]      __sys_sendmsg+0xcd/0x170
[ 7117.115956][   T73]      do_syscall_64+0xc6/0x1e0
[ 7117.115956][   T73] 
[ 7117.118122][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7117.118122][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7117.118122][   T73]      ipv6_find_idev+0x102/0x170
[ 7117.118122][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7117.118122][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7117.118122][   T73]      netlink_rcv_skb+0x130/0x360
[ 7117.118122][   T73]      netlink_unicast+0x449/0x710
[ 7117.118122][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7117.118122][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7117.118122][   T73]      ___sys_sendmsg+0xee/0x170
[ 7117.118122][   T73]      __sys_sendmsg+0xcd/0x170
[ 7117.118122][   T73]      do_syscall_64+0xc6/0x1e0
[ 7117.118122][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7117.118122][   T73] 
[ 7117.119859][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7117.119859][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7117.119859][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7117.119859][   T73]      ipv6_find_idev+0x102/0x170
[ 7117.119859][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7117.119859][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7117.119859][   T73]      netlink_rcv_skb+0x130/0x360
[ 7117.119859][   T73]      netlink_unicast+0x449/0x710
[ 7117.119859][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7117.119859][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7117.119859][   T73]      ___sys_sendmsg+0xee/0x170
[ 7117.119859][   T73]      __sys_sendmsg+0xcd/0x170
[ 7117.119859][   T73]      do_syscall_64+0xc6/0x1e0
[ 7117.119859][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7117.119859][   T73] 
[ 7117.121812][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 7117.122089][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7117.122089][   T73]      netdev_get_by_index+0x5e/0x80
[ 7117.122089][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7117.122089][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7117.122089][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 7117.122089][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 7117.122089][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 7117.122089][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 7117.122089][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 7117.122089][   T73]      addrconf_dad_begin+0x310/0x670
[ 7117.122089][   T73]      addrconf_dad_work+0x10b/0xab0
[ 7117.122089][   T73]      process_one_work+0x84d/0x18a0
[ 7117.122089][   T73]      worker_thread+0x587/0xd30
[ 7117.122089][   T73]      kthread+0x28a/0x350
[ 7117.122089][   T73]      ret_from_fork+0x31/0x70
[ 7117.122089][   T73]      ret_from_fork_asm+0x1a/0x30
[ 7117.122089][   T73] 
[ 7117.124266][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7117.124266][   T73]      netdev_get_by_index+0x5e/0x80
[ 7117.124266][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7117.124266][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7117.124266][   T73]      ip6_route_add+0x1c/0x140
[ 7117.124266][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7117.124266][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7117.124266][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7117.124266][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7117.124266][   T73]      netlink_rcv_skb+0x130/0x360
[ 7117.124266][   T73]      netlink_unicast+0x449/0x710
[ 7117.124266][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7117.124266][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7117.124266][   T73]      ___sys_sendmsg+0xee/0x170
[ 7117.124266][   T73]      __sys_sendmsg+0xcd/0x170
[ 7117.124266][   T73]      do_syscall_64+0xc6/0x1e0
[ 7117.124266][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7117.124266][   T73] 
[ 7117.126520][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7117.126520][   T73]      netdev_get_by_index+0x5e/0x80
[ 7117.126520][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7117.126520][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7117.126520][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7117.126520][   T73]      ipv6_add_addr+0x411/0x2000
[ 7117.126520][   T73]      inet6_addr_add+0x30e/0xa40
[ 7117.126520][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7117.126520][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7117.126520][   T73]      netlink_rcv_skb+0x130/0x360
[ 7117.126520][   T73]      netlink_unicast+0x449/0x710
[ 7117.126520][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7117.126520][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7117.126520][   T73]      ___sys_sendmsg+0xee/0x170
[ 7117.126520][   T73]      __sys_sendmsg+0xcd/0x170
[ 7117.126520][   T73]      do_syscall_64+0xc6/0x1e0
[ 7117.126520][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7117.126520][   T73] 
[ 7117.128773][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7117.128773][   T73]      netdev_get_by_index+0x5e/0x80
[ 7117.128773][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7117.128773][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7117.128773][   T73]      ip6_route_add+0x1c/0x140
[ 7117.128773][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7117.128773][   T73]      addrconf_add_dev+0xe2/0x170
[ 7117.128773][   T73]      inet6_addr_add+0x12f/0xa40
[ 7117.128773][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7117.128773][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7117.128773][   T73]      netlink_rcv_skb+0x130/0x360
[ 7117.128773][   T73]      netlink_unicast+0x449/0x710
[ 7117.128773][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7117.128773][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7117.128773][   T73]      ___sys_sendmsg+0xee/0x170
[ 7117.128773][   T73]      __sys_sendmsg+0xcd/0x170
[ 7117.128773][   T73]      do_syscall_64+0xc6/0x1e0
[ 7117.128773][   T73] 
[ 7117.131000][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7117.131000][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7117.131000][   T73]      ipv6_find_idev+0x102/0x170
[ 7117.131000][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7117.131000][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7117.131000][   T73]      netlink_rcv_skb+0x130/0x360
[ 7117.131000][   T73]      netlink_unicast+0x449/0x710
[ 7117.131000][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7117.131000][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7117.131000][   T73]      ___sys_sendmsg+0xee/0x170
[ 7117.131000][   T73]      __sys_sendmsg+0xcd/0x170
[ 7117.131000][   T73]      do_syscall_64+0xc6/0x1e0
[ 7117.131000][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7117.131000][   T73] 
[ 7117.132742][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7117.132742][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7117.132742][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7117.132742][   T73]      ipv6_find_idev+0x102/0x170
[ 7117.132742][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7117.132742][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7117.132742][   T73]      netlink_rcv_skb+0x130/0x360
[ 7117.132742][   T73]      netlink_unicast+0x449/0x710
[ 7117.132742][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7117.132742][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7117.132742][   T73]      ___sys_sendmsg+0xee/0x170
[ 7117.132742][   T73]      __sys_sendmsg+0xcd/0x170
[ 7117.132742][   T73]      do_syscall_64+0xc6/0x1e0
[ 7117.132742][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7117.132742][   T73] 
[ 7127.383811][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 7127.384188][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7127.384188][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 7127.384188][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 7127.384188][   T73]      fib6_nh_init+0xa22/0x1580
[ 7127.384188][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7127.384188][   T73]      ip6_route_add+0x1c/0x140
[ 7127.384188][   T73]      inet6_rtm_newroute+0x104/0x110
[ 7127.384188][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7127.384188][   T73]      netlink_rcv_skb+0x130/0x360
[ 7127.384188][   T73]      netlink_unicast+0x449/0x710
[ 7127.384188][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7127.384188][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7127.384188][   T73]      ___sys_sendmsg+0xee/0x170
[ 7127.384188][   T73]      __sys_sendmsg+0xcd/0x170
[ 7127.384188][   T73]      do_syscall_64+0xc6/0x1e0
[ 7127.384188][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7127.384188][   T73] 
[ 7127.386107][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 7127.386107][   T73]      dst_init+0x84/0x4a0
[ 7127.386107][   T73]      dst_alloc+0x97/0x150
[ 7127.386107][   T73]      ip6_dst_alloc+0x23/0x90
[ 7127.386107][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 7127.386107][   T73]      ip6_pol_route+0x56f/0x840
[ 7127.386107][   T73]      fib6_rule_lookup+0x456/0x630
[ 7127.386107][   T73]      ip6_route_input+0x59c/0xa50
[ 7127.386107][   T73]      ipv6_rcv+0x397/0x810
[ 7127.386107][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 7127.386107][   T73]      process_backlog+0x101/0x620
[ 7127.386107][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 7127.386107][   T73]      net_rx_action+0x495/0xbe0
[ 7127.386107][   T73]      __do_softirq+0x1b5/0x7f6
[ 7127.386107][   T73] 
[ 7127.387795][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7127.387795][   T73]      netdev_get_by_index+0x5e/0x80
[ 7127.387795][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7127.387795][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7127.387795][   T73]      ip6_route_add+0x1c/0x140
[ 7127.387795][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7127.387795][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7127.387795][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7127.387795][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7127.387795][   T73]      netlink_rcv_skb+0x130/0x360
[ 7127.387795][   T73]      netlink_unicast+0x449/0x710
[ 7127.387795][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7127.387795][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7127.387795][   T73]      ___sys_sendmsg+0xee/0x170
[ 7127.387795][   T73]      __sys_sendmsg+0xcd/0x170
[ 7127.387795][   T73]      do_syscall_64+0xc6/0x1e0
[ 7127.387795][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7127.387795][   T73] 
[ 7127.389810][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7127.389810][   T73]      netdev_get_by_index+0x5e/0x80
[ 7127.389810][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7127.389810][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7127.389810][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7127.389810][   T73]      ipv6_add_addr+0x411/0x2000
[ 7127.389810][   T73]      inet6_addr_add+0x30e/0xa40
[ 7127.389810][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7127.389810][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7127.389810][   T73]      netlink_rcv_skb+0x130/0x360
[ 7127.389810][   T73]      netlink_unicast+0x449/0x710
[ 7127.389810][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7127.389810][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7127.389810][   T73]      ___sys_sendmsg+0xee/0x170
[ 7127.389810][   T73]      __sys_sendmsg+0xcd/0x170
[ 7127.389810][   T73]      do_syscall_64+0xc6/0x1e0
[ 7127.389810][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7127.389810][   T73] 
[ 7127.391835][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7127.391835][   T73]      netdev_get_by_index+0x5e/0x80
[ 7127.391835][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7127.391835][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7127.391835][   T73]      ip6_route_add+0x1c/0x140
[ 7127.391835][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7127.391835][   T73]      addrconf_add_dev+0xe2/0x170
[ 7127.391835][   T73]      inet6_addr_add+0x12f/0xa40
[ 7127.391835][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7127.391835][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7127.391835][   T73]      netlink_rcv_skb+0x130/0x360
[ 7127.391835][   T73]      netlink_unicast+0x449/0x710
[ 7127.391835][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7127.391835][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7127.391835][   T73]      ___sys_sendmsg+0xee/0x170
[ 7127.391835][   T73]      __sys_sendmsg+0xcd/0x170
[ 7127.391835][   T73]      do_syscall_64+0xc6/0x1e0
[ 7127.391835][   T73] 
[ 7127.393827][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7127.393827][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7127.393827][   T73]      ipv6_find_idev+0x102/0x170
[ 7127.393827][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7127.393827][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7127.393827][   T73]      netlink_rcv_skb+0x130/0x360
[ 7127.393827][   T73]      netlink_unicast+0x449/0x710
[ 7127.393827][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7127.393827][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7127.393827][   T73]      ___sys_sendmsg+0xee/0x170
[ 7127.393827][   T73]      __sys_sendmsg+0xcd/0x170
[ 7127.393827][   T73]      do_syscall_64+0xc6/0x1e0
[ 7127.393827][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7127.393827][   T73] 
[ 7127.395378][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7127.395378][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7127.395378][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7127.395378][   T73]      ipv6_find_idev+0x102/0x170
[ 7127.395378][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7127.395378][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7127.395378][   T73]      netlink_rcv_skb+0x130/0x360
[ 7127.395378][   T73]      netlink_unicast+0x449/0x710
[ 7127.395378][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7127.395378][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7127.395378][   T73]      ___sys_sendmsg+0xee/0x170
[ 7127.395378][   T73]      __sys_sendmsg+0xcd/0x170
[ 7127.395378][   T73]      do_syscall_64+0xc6/0x1e0
[ 7127.395378][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7127.395378][   T73] 
[ 7127.397071][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 7127.397342][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7127.397342][   T73]      netdev_get_by_index+0x5e/0x80
[ 7127.397342][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7127.397342][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7127.397342][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 7127.397342][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 7127.397342][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 7127.397342][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 7127.397342][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 7127.397342][   T73]      addrconf_dad_begin+0x310/0x670
[ 7127.397342][   T73]      addrconf_dad_work+0x10b/0xab0
[ 7127.397342][   T73]      process_one_work+0x84d/0x18a0
[ 7127.397342][   T73]      worker_thread+0x587/0xd30
[ 7127.397342][   T73]      kthread+0x28a/0x350
[ 7127.397342][   T73]      ret_from_fork+0x31/0x70
[ 7127.397342][   T73]      ret_from_fork_asm+0x1a/0x30
[ 7127.397342][   T73] 
[ 7127.399259][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7127.399259][   T73]      netdev_get_by_index+0x5e/0x80
[ 7127.399259][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7127.399259][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7127.399259][   T73]      ip6_route_add+0x1c/0x140
[ 7127.399259][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7127.399259][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7127.399259][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7127.399259][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7127.399259][   T73]      netlink_rcv_skb+0x130/0x360
[ 7127.399259][   T73]      netlink_unicast+0x449/0x710
[ 7127.399259][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7127.399259][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7127.399259][   T73]      ___sys_sendmsg+0xee/0x170
[ 7127.399259][   T73]      __sys_sendmsg+0xcd/0x170
[ 7127.399259][   T73]      do_syscall_64+0xc6/0x1e0
[ 7127.399259][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7127.399259][   T73] 
[ 7127.401264][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7127.401264][   T73]      netdev_get_by_index+0x5e/0x80
[ 7127.401264][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7127.401264][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7127.401264][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7127.401264][   T73]      ipv6_add_addr+0x411/0x2000
[ 7127.401264][   T73]      inet6_addr_add+0x30e/0xa40
[ 7127.401264][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7127.401264][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7127.401264][   T73]      netlink_rcv_skb+0x130/0x360
[ 7127.401264][   T73]      netlink_unicast+0x449/0x710
[ 7127.401264][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7127.401264][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7127.401264][   T73]      ___sys_sendmsg+0xee/0x170
[ 7127.401264][   T73]      __sys_sendmsg+0xcd/0x170
[ 7127.401264][   T73]      do_syscall_64+0xc6/0x1e0
[ 7127.401264][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7127.401264][   T73] 
[ 7127.403271][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7127.403271][   T73]      netdev_get_by_index+0x5e/0x80
[ 7127.403271][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7127.403271][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7127.403271][   T73]      ip6_route_add+0x1c/0x140
[ 7127.403271][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7127.403271][   T73]      addrconf_add_dev+0xe2/0x170
[ 7127.403271][   T73]      inet6_addr_add+0x12f/0xa40
[ 7127.403271][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7127.403271][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7127.403271][   T73]      netlink_rcv_skb+0x130/0x360
[ 7127.403271][   T73]      netlink_unicast+0x449/0x710
[ 7127.403271][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7127.403271][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7127.403271][   T73]      ___sys_sendmsg+0xee/0x170
[ 7127.403271][   T73]      __sys_sendmsg+0xcd/0x170
[ 7127.403271][   T73]      do_syscall_64+0xc6/0x1e0
[ 7127.403271][   T73] 
[ 7127.405224][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7127.405224][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7127.405224][   T73]      ipv6_find_idev+0x102/0x170
[ 7127.405224][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7127.405224][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7127.405224][   T73]      netlink_rcv_skb+0x130/0x360
[ 7127.405224][   T73]      netlink_unicast+0x449/0x710
[ 7127.405224][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7127.405224][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7127.405224][   T73]      ___sys_sendmsg+0xee/0x170
[ 7127.405224][   T73]      __sys_sendmsg+0xcd/0x170
[ 7127.405224][   T73]      do_syscall_64+0xc6/0x1e0
[ 7127.405224][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7127.405224][   T73] 
[ 7127.406766][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7127.406766][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7127.406766][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7127.406766][   T73]      ipv6_find_idev+0x102/0x170
[ 7127.406766][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7127.406766][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7127.406766][   T73]      netlink_rcv_skb+0x130/0x360
[ 7127.406766][   T73]      netlink_unicast+0x449/0x710
[ 7127.406766][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7127.406766][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7127.406766][   T73]      ___sys_sendmsg+0xee/0x170
[ 7127.406766][   T73]      __sys_sendmsg+0xcd/0x170
[ 7127.406766][   T73]      do_syscall_64+0xc6/0x1e0
[ 7127.406766][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7127.406766][   T73] 
[ 7127.408450][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 7127.408734][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7127.408734][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 7127.408734][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 7127.408734][   T73]      fib6_nh_init+0xa22/0x1580
[ 7127.408734][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7127.408734][   T73]      ip6_route_add+0x1c/0x140
[ 7127.408734][   T73]      inet6_rtm_newroute+0x104/0x110
[ 7127.408734][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7127.408734][   T73]      netlink_rcv_skb+0x130/0x360
[ 7127.408734][   T73]      netlink_unicast+0x449/0x710
[ 7127.408734][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7127.408734][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7127.408734][   T73]      ___sys_sendmsg+0xee/0x170
[ 7127.408734][   T73]      __sys_sendmsg+0xcd/0x170
[ 7127.408734][   T73]      do_syscall_64+0xc6/0x1e0
[ 7127.408734][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7127.408734][   T73] 
[ 7127.410800][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 7127.410800][   T73]      dst_init+0x84/0x4a0
[ 7127.410800][   T73]      dst_alloc+0x97/0x150
[ 7127.410800][   T73]      ip6_dst_alloc+0x23/0x90
[ 7127.410800][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 7127.410800][   T73]      ip6_pol_route+0x56f/0x840
[ 7127.410800][   T73]      fib6_rule_lookup+0x456/0x630
[ 7127.410800][   T73]      ip6_route_input+0x59c/0xa50
[ 7127.410800][   T73]      ipv6_rcv+0x397/0x810
[ 7127.410800][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 7127.410800][   T73]      process_backlog+0x101/0x620
[ 7127.410800][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 7127.410800][   T73]      net_rx_action+0x495/0xbe0
[ 7127.410800][   T73]      __do_softirq+0x1b5/0x7f6
[ 7127.410800][   T73] 
[ 7127.412713][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7127.412713][   T73]      netdev_get_by_index+0x5e/0x80
[ 7127.412713][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7127.412713][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7127.412713][   T73]      ip6_route_add+0x1c/0x140
[ 7127.412713][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7127.412713][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7127.412713][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7127.412713][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7127.412713][   T73]      netlink_rcv_skb+0x130/0x360
[ 7127.412713][   T73]      netlink_unicast+0x449/0x710
[ 7127.412713][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7127.412713][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7127.412713][   T73]      ___sys_sendmsg+0xee/0x170
[ 7127.412713][   T73]      __sys_sendmsg+0xcd/0x170
[ 7127.412713][   T73]      do_syscall_64+0xc6/0x1e0
[ 7127.412713][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7127.412713][   T73] 
[ 7127.414962][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7127.414962][   T73]      netdev_get_by_index+0x5e/0x80
[ 7127.414962][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7127.414962][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7127.414962][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7127.414962][   T73]      ipv6_add_addr+0x411/0x2000
[ 7127.414962][   T73]      inet6_addr_add+0x30e/0xa40
[ 7127.414962][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7127.414962][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7127.414962][   T73]      netlink_rcv_skb+0x130/0x360
[ 7127.414962][   T73]      netlink_unicast+0x449/0x710
[ 7127.414962][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7127.414962][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7127.414962][   T73]      ___sys_sendmsg+0xee/0x170
[ 7127.414962][   T73]      __sys_sendmsg+0xcd/0x170
[ 7127.414962][   T73]      do_syscall_64+0xc6/0x1e0
[ 7127.414962][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7127.414962][   T73] 
[ 7127.417231][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7127.417231][   T73]      netdev_get_by_index+0x5e/0x80
[ 7127.417231][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7127.417231][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7127.417231][   T73]      ip6_route_add+0x1c/0x140
[ 7127.417231][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7127.417231][   T73]      addrconf_add_dev+0xe2/0x170
[ 7127.417231][   T73]      inet6_addr_add+0x12f/0xa40
[ 7127.417231][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7127.417231][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7127.417231][   T73]      netlink_rcv_skb+0x130/0x360
[ 7127.417231][   T73]      netlink_unicast+0x449/0x710
[ 7127.417231][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7127.417231][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7127.417231][   T73]      ___sys_sendmsg+0xee/0x170
[ 7127.417231][   T73]      __sys_sendmsg+0xcd/0x170
[ 7127.417231][   T73]      do_syscall_64+0xc6/0x1e0
[ 7127.417231][   T73] 
[ 7127.419377][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7127.419377][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7127.419377][   T73]      ipv6_find_idev+0x102/0x170
[ 7127.419377][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7127.419377][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7127.419377][   T73]      netlink_rcv_skb+0x130/0x360
[ 7127.419377][   T73]      netlink_unicast+0x449/0x710
[ 7127.419377][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7127.419377][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7127.419377][   T73]      ___sys_sendmsg+0xee/0x170
[ 7127.419377][   T73]      __sys_sendmsg+0xcd/0x170
[ 7127.419377][   T73]      do_syscall_64+0xc6/0x1e0
[ 7127.419377][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7127.419377][   T73] 
[ 7127.421171][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7127.421171][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7127.421171][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7127.421171][   T73]      ipv6_find_idev+0x102/0x170
[ 7127.421171][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7127.421171][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7127.421171][   T73]      netlink_rcv_skb+0x130/0x360
[ 7127.421171][   T73]      netlink_unicast+0x449/0x710
[ 7127.421171][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7127.421171][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7127.421171][   T73]      ___sys_sendmsg+0xee/0x170
[ 7127.421171][   T73]      __sys_sendmsg+0xcd/0x170
[ 7127.421171][   T73]      do_syscall_64+0xc6/0x1e0
[ 7127.421171][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7127.421171][   T73] 
[ 7127.423106][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 7127.423384][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7127.423384][   T73]      netdev_get_by_index+0x5e/0x80
[ 7127.423384][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7127.423384][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7127.423384][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 7127.423384][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 7127.423384][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 7127.423384][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 7127.423384][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 7127.423384][   T73]      addrconf_dad_begin+0x310/0x670
[ 7127.423384][   T73]      addrconf_dad_work+0x10b/0xab0
[ 7127.423384][   T73]      process_one_work+0x84d/0x18a0
[ 7127.423384][   T73]      worker_thread+0x587/0xd30
[ 7127.423384][   T73]      kthread+0x28a/0x350
[ 7127.423384][   T73]      ret_from_fork+0x31/0x70
[ 7127.423384][   T73]      ret_from_fork_asm+0x1a/0x30
[ 7127.423384][   T73] 
[ 7127.425549][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7127.425549][   T73]      netdev_get_by_index+0x5e/0x80
[ 7127.425549][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7127.425549][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7127.425549][   T73]      ip6_route_add+0x1c/0x140
[ 7127.425549][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7127.425549][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7127.425549][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7127.425549][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7127.425549][   T73]      netlink_rcv_skb+0x130/0x360
[ 7127.425549][   T73]      netlink_unicast+0x449/0x710
[ 7127.425549][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7127.425549][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7127.425549][   T73]      ___sys_sendmsg+0xee/0x170
[ 7127.425549][   T73]      __sys_sendmsg+0xcd/0x170
[ 7127.425549][   T73]      do_syscall_64+0xc6/0x1e0
[ 7127.425549][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7127.425549][   T73] 
[ 7127.427739][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7127.427739][   T73]      netdev_get_by_index+0x5e/0x80
[ 7127.427739][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7127.427739][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7127.427739][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7127.427739][   T73]      ipv6_add_addr+0x411/0x2000
[ 7127.427739][   T73]      inet6_addr_add+0x30e/0xa40
[ 7127.427739][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7127.427739][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7127.427739][   T73]      netlink_rcv_skb+0x130/0x360
[ 7127.427739][   T73]      netlink_unicast+0x449/0x710
[ 7127.427739][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7127.427739][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7127.427739][   T73]      ___sys_sendmsg+0xee/0x170
[ 7127.427739][   T73]      __sys_sendmsg+0xcd/0x170
[ 7127.427739][   T73]      do_syscall_64+0xc6/0x1e0
[ 7127.427739][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7127.427739][   T73] 
[ 7127.429990][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7127.429990][   T73]      netdev_get_by_index+0x5e/0x80
[ 7127.429990][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7127.429990][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7127.429990][   T73]      ip6_route_add+0x1c/0x140
[ 7127.429990][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7127.429990][   T73]      addrconf_add_dev+0xe2/0x170
[ 7127.429990][   T73]      inet6_addr_add+0x12f/0xa40
[ 7127.429990][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7127.429990][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7127.429990][   T73]      netlink_rcv_skb+0x130/0x360
[ 7127.429990][   T73]      netlink_unicast+0x449/0x710
[ 7127.429990][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7127.429990][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7127.429990][   T73]      ___sys_sendmsg+0xee/0x170
[ 7127.429990][   T73]      __sys_sendmsg+0xcd/0x170
[ 7127.429990][   T73]      do_syscall_64+0xc6/0x1e0
[ 7127.429990][   T73] 
[ 7127.432282][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7127.432282][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7127.432282][   T73]      ipv6_find_idev+0x102/0x170
[ 7127.432282][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7127.432282][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7127.432282][   T73]      netlink_rcv_skb+0x130/0x360
[ 7127.432282][   T73]      netlink_unicast+0x449/0x710
[ 7127.432282][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7127.432282][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7127.432282][   T73]      ___sys_sendmsg+0xee/0x170
[ 7127.432282][   T73]      __sys_sendmsg+0xcd/0x170
[ 7127.432282][   T73]      do_syscall_64+0xc6/0x1e0
[ 7127.432282][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7127.432282][   T73] 
[ 7127.434014][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7127.434014][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7127.434014][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7127.434014][   T73]      ipv6_find_idev+0x102/0x170
[ 7127.434014][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7127.434014][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7127.434014][   T73]      netlink_rcv_skb+0x130/0x360
[ 7127.434014][   T73]      netlink_unicast+0x449/0x710
[ 7127.434014][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7127.434014][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7127.434014][   T73]      ___sys_sendmsg+0xee/0x170
[ 7127.434014][   T73]      __sys_sendmsg+0xcd/0x170
[ 7127.434014][   T73]      do_syscall_64+0xc6/0x1e0
[ 7127.434014][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7127.434014][   T73] 
[ 7137.615696][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 7137.616171][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7137.616171][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 7137.616171][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 7137.616171][   T73]      fib6_nh_init+0xa22/0x1580
[ 7137.616171][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7137.616171][   T73]      ip6_route_add+0x1c/0x140
[ 7137.616171][   T73]      inet6_rtm_newroute+0x104/0x110
[ 7137.616171][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7137.616171][   T73]      netlink_rcv_skb+0x130/0x360
[ 7137.616171][   T73]      netlink_unicast+0x449/0x710
[ 7137.616171][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7137.616171][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7137.616171][   T73]      ___sys_sendmsg+0xee/0x170
[ 7137.616171][   T73]      __sys_sendmsg+0xcd/0x170
[ 7137.616171][   T73]      do_syscall_64+0xc6/0x1e0
[ 7137.616171][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7137.616171][   T73] 
[ 7137.618083][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 7137.618083][   T73]      dst_init+0x84/0x4a0
[ 7137.618083][   T73]      dst_alloc+0x97/0x150
[ 7137.618083][   T73]      ip6_dst_alloc+0x23/0x90
[ 7137.618083][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 7137.618083][   T73]      ip6_pol_route+0x56f/0x840
[ 7137.618083][   T73]      fib6_rule_lookup+0x456/0x630
[ 7137.618083][   T73]      ip6_route_input+0x59c/0xa50
[ 7137.618083][   T73]      ipv6_rcv+0x397/0x810
[ 7137.618083][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 7137.618083][   T73]      process_backlog+0x101/0x620
[ 7137.618083][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 7137.618083][   T73]      net_rx_action+0x495/0xbe0
[ 7137.618083][   T73]      __do_softirq+0x1b5/0x7f6
[ 7137.618083][   T73] 
[ 7137.619743][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7137.619743][   T73]      netdev_get_by_index+0x5e/0x80
[ 7137.619743][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7137.619743][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7137.619743][   T73]      ip6_route_add+0x1c/0x140
[ 7137.619743][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7137.619743][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7137.619743][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7137.619743][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7137.619743][   T73]      netlink_rcv_skb+0x130/0x360
[ 7137.619743][   T73]      netlink_unicast+0x449/0x710
[ 7137.619743][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7137.619743][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7137.619743][   T73]      ___sys_sendmsg+0xee/0x170
[ 7137.619743][   T73]      __sys_sendmsg+0xcd/0x170
[ 7137.619743][   T73]      do_syscall_64+0xc6/0x1e0
[ 7137.619743][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7137.619743][   T73] 
[ 7137.621766][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7137.621766][   T73]      netdev_get_by_index+0x5e/0x80
[ 7137.621766][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7137.621766][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7137.621766][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7137.621766][   T73]      ipv6_add_addr+0x411/0x2000
[ 7137.621766][   T73]      inet6_addr_add+0x30e/0xa40
[ 7137.621766][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7137.621766][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7137.621766][   T73]      netlink_rcv_skb+0x130/0x360
[ 7137.621766][   T73]      netlink_unicast+0x449/0x710
[ 7137.621766][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7137.621766][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7137.621766][   T73]      ___sys_sendmsg+0xee/0x170
[ 7137.621766][   T73]      __sys_sendmsg+0xcd/0x170
[ 7137.621766][   T73]      do_syscall_64+0xc6/0x1e0
[ 7137.621766][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7137.621766][   T73] 
[ 7137.623774][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7137.623774][   T73]      netdev_get_by_index+0x5e/0x80
[ 7137.623774][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7137.623774][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7137.623774][   T73]      ip6_route_add+0x1c/0x140
[ 7137.623774][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7137.623774][   T73]      addrconf_add_dev+0xe2/0x170
[ 7137.623774][   T73]      inet6_addr_add+0x12f/0xa40
[ 7137.623774][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7137.623774][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7137.623774][   T73]      netlink_rcv_skb+0x130/0x360
[ 7137.623774][   T73]      netlink_unicast+0x449/0x710
[ 7137.623774][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7137.623774][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7137.623774][   T73]      ___sys_sendmsg+0xee/0x170
[ 7137.623774][   T73]      __sys_sendmsg+0xcd/0x170
[ 7137.623774][   T73]      do_syscall_64+0xc6/0x1e0
[ 7137.623774][   T73] 
[ 7137.625758][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7137.625758][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7137.625758][   T73]      ipv6_find_idev+0x102/0x170
[ 7137.625758][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7137.625758][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7137.625758][   T73]      netlink_rcv_skb+0x130/0x360
[ 7137.625758][   T73]      netlink_unicast+0x449/0x710
[ 7137.625758][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7137.625758][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7137.625758][   T73]      ___sys_sendmsg+0xee/0x170
[ 7137.625758][   T73]      __sys_sendmsg+0xcd/0x170
[ 7137.625758][   T73]      do_syscall_64+0xc6/0x1e0
[ 7137.625758][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7137.625758][   T73] 
[ 7137.627314][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7137.627314][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7137.627314][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7137.627314][   T73]      ipv6_find_idev+0x102/0x170
[ 7137.627314][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7137.627314][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7137.627314][   T73]      netlink_rcv_skb+0x130/0x360
[ 7137.627314][   T73]      netlink_unicast+0x449/0x710
[ 7137.627314][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7137.627314][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7137.627314][   T73]      ___sys_sendmsg+0xee/0x170
[ 7137.627314][   T73]      __sys_sendmsg+0xcd/0x170
[ 7137.627314][   T73]      do_syscall_64+0xc6/0x1e0
[ 7137.627314][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7137.627314][   T73] 
[ 7137.629007][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 7137.629277][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7137.629277][   T73]      netdev_get_by_index+0x5e/0x80
[ 7137.629277][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7137.629277][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7137.629277][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 7137.629277][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 7137.629277][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 7137.629277][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 7137.629277][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 7137.629277][   T73]      addrconf_dad_begin+0x310/0x670
[ 7137.629277][   T73]      addrconf_dad_work+0x10b/0xab0
[ 7137.629277][   T73]      process_one_work+0x84d/0x18a0
[ 7137.629277][   T73]      worker_thread+0x587/0xd30
[ 7137.629277][   T73]      kthread+0x28a/0x350
[ 7137.629277][   T73]      ret_from_fork+0x31/0x70
[ 7137.629277][   T73]      ret_from_fork_asm+0x1a/0x30
[ 7137.629277][   T73] 
[ 7137.631194][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7137.631194][   T73]      netdev_get_by_index+0x5e/0x80
[ 7137.631194][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7137.631194][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7137.631194][   T73]      ip6_route_add+0x1c/0x140
[ 7137.631194][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7137.631194][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7137.631194][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7137.631194][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7137.631194][   T73]      netlink_rcv_skb+0x130/0x360
[ 7137.631194][   T73]      netlink_unicast+0x449/0x710
[ 7137.631194][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7137.631194][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7137.631194][   T73]      ___sys_sendmsg+0xee/0x170
[ 7137.631194][   T73]      __sys_sendmsg+0xcd/0x170
[ 7137.631194][   T73]      do_syscall_64+0xc6/0x1e0
[ 7137.631194][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7137.631194][   T73] 
[ 7137.633202][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7137.633202][   T73]      netdev_get_by_index+0x5e/0x80
[ 7137.633202][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7137.633202][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7137.633202][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7137.633202][   T73]      ipv6_add_addr+0x411/0x2000
[ 7137.633202][   T73]      inet6_addr_add+0x30e/0xa40
[ 7137.633202][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7137.633202][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7137.633202][   T73]      netlink_rcv_skb+0x130/0x360
[ 7137.633202][   T73]      netlink_unicast+0x449/0x710
[ 7137.633202][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7137.633202][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7137.633202][   T73]      ___sys_sendmsg+0xee/0x170
[ 7137.633202][   T73]      __sys_sendmsg+0xcd/0x170
[ 7137.633202][   T73]      do_syscall_64+0xc6/0x1e0
[ 7137.633202][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7137.633202][   T73] 
[ 7137.635224][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7137.635224][   T73]      netdev_get_by_index+0x5e/0x80
[ 7137.635224][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7137.635224][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7137.635224][   T73]      ip6_route_add+0x1c/0x140
[ 7137.635224][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7137.635224][   T73]      addrconf_add_dev+0xe2/0x170
[ 7137.635224][   T73]      inet6_addr_add+0x12f/0xa40
[ 7137.635224][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7137.635224][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7137.635224][   T73]      netlink_rcv_skb+0x130/0x360
[ 7137.635224][   T73]      netlink_unicast+0x449/0x710
[ 7137.635224][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7137.635224][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7137.635224][   T73]      ___sys_sendmsg+0xee/0x170
[ 7137.635224][   T73]      __sys_sendmsg+0xcd/0x170
[ 7137.635224][   T73]      do_syscall_64+0xc6/0x1e0
[ 7137.635224][   T73] 
[ 7137.637197][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7137.637197][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7137.637197][   T73]      ipv6_find_idev+0x102/0x170
[ 7137.637197][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7137.637197][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7137.637197][   T73]      netlink_rcv_skb+0x130/0x360
[ 7137.637197][   T73]      netlink_unicast+0x449/0x710
[ 7137.637197][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7137.637197][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7137.637197][   T73]      ___sys_sendmsg+0xee/0x170
[ 7137.637197][   T73]      __sys_sendmsg+0xcd/0x170
[ 7137.637197][   T73]      do_syscall_64+0xc6/0x1e0
[ 7137.637197][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7137.637197][   T73] 
[ 7137.638747][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7137.638747][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7137.638747][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7137.638747][   T73]      ipv6_find_idev+0x102/0x170
[ 7137.638747][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7137.638747][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7137.638747][   T73]      netlink_rcv_skb+0x130/0x360
[ 7137.638747][   T73]      netlink_unicast+0x449/0x710
[ 7137.638747][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7137.638747][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7137.638747][   T73]      ___sys_sendmsg+0xee/0x170
[ 7137.638747][   T73]      __sys_sendmsg+0xcd/0x170
[ 7137.638747][   T73]      do_syscall_64+0xc6/0x1e0
[ 7137.638747][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7137.638747][   T73] 
[ 7137.640430][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 7137.640711][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7137.640711][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 7137.640711][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 7137.640711][   T73]      fib6_nh_init+0xa22/0x1580
[ 7137.640711][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7137.640711][   T73]      ip6_route_add+0x1c/0x140
[ 7137.640711][   T73]      inet6_rtm_newroute+0x104/0x110
[ 7137.640711][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7137.640711][   T73]      netlink_rcv_skb+0x130/0x360
[ 7137.640711][   T73]      netlink_unicast+0x449/0x710
[ 7137.640711][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7137.640711][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7137.640711][   T73]      ___sys_sendmsg+0xee/0x170
[ 7137.640711][   T73]      __sys_sendmsg+0xcd/0x170
[ 7137.640711][   T73]      do_syscall_64+0xc6/0x1e0
[ 7137.640711][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7137.640711][   T73] 
[ 7137.642789][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 7137.642789][   T73]      dst_init+0x84/0x4a0
[ 7137.642789][   T73]      dst_alloc+0x97/0x150
[ 7137.642789][   T73]      ip6_dst_alloc+0x23/0x90
[ 7137.642789][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 7137.642789][   T73]      ip6_pol_route+0x56f/0x840
[ 7137.642789][   T73]      fib6_rule_lookup+0x456/0x630
[ 7137.642789][   T73]      ip6_route_input+0x59c/0xa50
[ 7137.642789][   T73]      ipv6_rcv+0x397/0x810
[ 7137.642789][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 7137.642789][   T73]      process_backlog+0x101/0x620
[ 7137.642789][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 7137.642789][   T73]      net_rx_action+0x495/0xbe0
[ 7137.642789][   T73]      __do_softirq+0x1b5/0x7f6
[ 7137.642789][   T73] 
[ 7137.644607][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7137.644607][   T73]      netdev_get_by_index+0x5e/0x80
[ 7137.644607][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7137.644607][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7137.644607][   T73]      ip6_route_add+0x1c/0x140
[ 7137.644607][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7137.644607][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7137.644607][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7137.644607][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7137.644607][   T73]      netlink_rcv_skb+0x130/0x360
[ 7137.644607][   T73]      netlink_unicast+0x449/0x710
[ 7137.644607][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7137.644607][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7137.644607][   T73]      ___sys_sendmsg+0xee/0x170
[ 7137.644607][   T73]      __sys_sendmsg+0xcd/0x170
[ 7137.644607][   T73]      do_syscall_64+0xc6/0x1e0
[ 7137.644607][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7137.644607][   T73] 
[ 7137.646851][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7137.646851][   T73]      netdev_get_by_index+0x5e/0x80
[ 7137.646851][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7137.646851][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7137.646851][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7137.646851][   T73]      ipv6_add_addr+0x411/0x2000
[ 7137.646851][   T73]      inet6_addr_add+0x30e/0xa40
[ 7137.646851][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7137.646851][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7137.646851][   T73]      netlink_rcv_skb+0x130/0x360
[ 7137.646851][   T73]      netlink_unicast+0x449/0x710
[ 7137.646851][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7137.646851][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7137.646851][   T73]      ___sys_sendmsg+0xee/0x170
[ 7137.646851][   T73]      __sys_sendmsg+0xcd/0x170
[ 7137.646851][   T73]      do_syscall_64+0xc6/0x1e0
[ 7137.646851][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7137.646851][   T73] 
[ 7137.649164][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7137.649164][   T73]      netdev_get_by_index+0x5e/0x80
[ 7137.649164][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7137.649164][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7137.649164][   T73]      ip6_route_add+0x1c/0x140
[ 7137.649164][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7137.649164][   T73]      addrconf_add_dev+0xe2/0x170
[ 7137.649164][   T73]      inet6_addr_add+0x12f/0xa40
[ 7137.649164][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7137.649164][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7137.649164][   T73]      netlink_rcv_skb+0x130/0x360
[ 7137.649164][   T73]      netlink_unicast+0x449/0x710
[ 7137.649164][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7137.649164][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7137.649164][   T73]      ___sys_sendmsg+0xee/0x170
[ 7137.649164][   T73]      __sys_sendmsg+0xcd/0x170
[ 7137.649164][   T73]      do_syscall_64+0xc6/0x1e0
[ 7137.649164][   T73] 
[ 7137.651251][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7137.651251][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7137.651251][   T73]      ipv6_find_idev+0x102/0x170
[ 7137.651251][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7137.651251][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7137.651251][   T73]      netlink_rcv_skb+0x130/0x360
[ 7137.651251][   T73]      netlink_unicast+0x449/0x710
[ 7137.651251][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7137.651251][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7137.651251][   T73]      ___sys_sendmsg+0xee/0x170
[ 7137.651251][   T73]      __sys_sendmsg+0xcd/0x170
[ 7137.651251][   T73]      do_syscall_64+0xc6/0x1e0
[ 7137.651251][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7137.651251][   T73] 
[ 7137.652969][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7137.652969][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7137.652969][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7137.652969][   T73]      ipv6_find_idev+0x102/0x170
[ 7137.652969][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7137.652969][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7137.652969][   T73]      netlink_rcv_skb+0x130/0x360
[ 7137.652969][   T73]      netlink_unicast+0x449/0x710
[ 7137.652969][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7137.652969][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7137.652969][   T73]      ___sys_sendmsg+0xee/0x170
[ 7137.652969][   T73]      __sys_sendmsg+0xcd/0x170
[ 7137.652969][   T73]      do_syscall_64+0xc6/0x1e0
[ 7137.652969][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7137.652969][   T73] 
[ 7137.654884][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 7137.655160][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7137.655160][   T73]      netdev_get_by_index+0x5e/0x80
[ 7137.655160][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7137.655160][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7137.655160][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 7137.655160][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 7137.655160][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 7137.655160][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 7137.655160][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 7137.655160][   T73]      addrconf_dad_begin+0x310/0x670
[ 7137.655160][   T73]      addrconf_dad_work+0x10b/0xab0
[ 7137.655160][   T73]      process_one_work+0x84d/0x18a0
[ 7137.655160][   T73]      worker_thread+0x587/0xd30
[ 7137.655160][   T73]      kthread+0x28a/0x350
[ 7137.655160][   T73]      ret_from_fork+0x31/0x70
[ 7137.655160][   T73]      ret_from_fork_asm+0x1a/0x30
[ 7137.655160][   T73] 
[ 7137.657309][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7137.657309][   T73]      netdev_get_by_index+0x5e/0x80
[ 7137.657309][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7137.657309][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7137.657309][   T73]      ip6_route_add+0x1c/0x140
[ 7137.657309][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7137.657309][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7137.657309][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7137.657309][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7137.657309][   T73]      netlink_rcv_skb+0x130/0x360
[ 7137.657309][   T73]      netlink_unicast+0x449/0x710
[ 7137.657309][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7137.657309][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7137.657309][   T73]      ___sys_sendmsg+0xee/0x170
[ 7137.657309][   T73]      __sys_sendmsg+0xcd/0x170
[ 7137.657309][   T73]      do_syscall_64+0xc6/0x1e0
[ 7137.657309][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7137.657309][   T73] 
[ 7137.659544][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7137.659544][   T73]      netdev_get_by_index+0x5e/0x80
[ 7137.659544][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7137.659544][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7137.659544][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7137.659544][   T73]      ipv6_add_addr+0x411/0x2000
[ 7137.659544][   T73]      inet6_addr_add+0x30e/0xa40
[ 7137.659544][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7137.659544][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7137.659544][   T73]      netlink_rcv_skb+0x130/0x360
[ 7137.659544][   T73]      netlink_unicast+0x449/0x710
[ 7137.659544][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7137.659544][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7137.659544][   T73]      ___sys_sendmsg+0xee/0x170
[ 7137.659544][   T73]      __sys_sendmsg+0xcd/0x170
[ 7137.659544][   T73]      do_syscall_64+0xc6/0x1e0
[ 7137.659544][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7137.659544][   T73] 
[ 7137.661806][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7137.661806][   T73]      netdev_get_by_index+0x5e/0x80
[ 7137.661806][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7137.661806][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7137.661806][   T73]      ip6_route_add+0x1c/0x140
[ 7137.661806][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7137.661806][   T73]      addrconf_add_dev+0xe2/0x170
[ 7137.661806][   T73]      inet6_addr_add+0x12f/0xa40
[ 7137.661806][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7137.661806][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7137.661806][   T73]      netlink_rcv_skb+0x130/0x360
[ 7137.661806][   T73]      netlink_unicast+0x449/0x710
[ 7137.661806][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7137.661806][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7137.661806][   T73]      ___sys_sendmsg+0xee/0x170
[ 7137.661806][   T73]      __sys_sendmsg+0xcd/0x170
[ 7137.661806][   T73]      do_syscall_64+0xc6/0x1e0
[ 7137.661806][   T73] 
[ 7137.664017][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7137.664017][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7137.664017][   T73]      ipv6_find_idev+0x102/0x170
[ 7137.664017][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7137.664017][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7137.664017][   T73]      netlink_rcv_skb+0x130/0x360
[ 7137.664017][   T73]      netlink_unicast+0x449/0x710
[ 7137.664017][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7137.664017][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7137.664017][   T73]      ___sys_sendmsg+0xee/0x170
[ 7137.664017][   T73]      __sys_sendmsg+0xcd/0x170
[ 7137.664017][   T73]      do_syscall_64+0xc6/0x1e0
[ 7137.664017][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7137.664017][   T73] 
[ 7137.665747][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7137.665747][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7137.665747][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7137.665747][   T73]      ipv6_find_idev+0x102/0x170
[ 7137.665747][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7137.665747][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7137.665747][   T73]      netlink_rcv_skb+0x130/0x360
[ 7137.665747][   T73]      netlink_unicast+0x449/0x710
[ 7137.665747][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7137.665747][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7137.665747][   T73]      ___sys_sendmsg+0xee/0x170
[ 7137.665747][   T73]      __sys_sendmsg+0xcd/0x170
[ 7137.665747][   T73]      do_syscall_64+0xc6/0x1e0
[ 7137.665747][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7137.665747][   T73] 
[ 7147.711747][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 7147.712210][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7147.712210][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 7147.712210][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 7147.712210][   T73]      fib6_nh_init+0xa22/0x1580
[ 7147.712210][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7147.712210][   T73]      ip6_route_add+0x1c/0x140
[ 7147.712210][   T73]      inet6_rtm_newroute+0x104/0x110
[ 7147.712210][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7147.712210][   T73]      netlink_rcv_skb+0x130/0x360
[ 7147.712210][   T73]      netlink_unicast+0x449/0x710
[ 7147.712210][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7147.712210][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7147.712210][   T73]      ___sys_sendmsg+0xee/0x170
[ 7147.712210][   T73]      __sys_sendmsg+0xcd/0x170
[ 7147.712210][   T73]      do_syscall_64+0xc6/0x1e0
[ 7147.712210][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7147.712210][   T73] 
[ 7147.714114][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 7147.714114][   T73]      dst_init+0x84/0x4a0
[ 7147.714114][   T73]      dst_alloc+0x97/0x150
[ 7147.714114][   T73]      ip6_dst_alloc+0x23/0x90
[ 7147.714114][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 7147.714114][   T73]      ip6_pol_route+0x56f/0x840
[ 7147.714114][   T73]      fib6_rule_lookup+0x456/0x630
[ 7147.714114][   T73]      ip6_route_input+0x59c/0xa50
[ 7147.714114][   T73]      ipv6_rcv+0x397/0x810
[ 7147.714114][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 7147.714114][   T73]      process_backlog+0x101/0x620
[ 7147.714114][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 7147.714114][   T73]      net_rx_action+0x495/0xbe0
[ 7147.714114][   T73]      __do_softirq+0x1b5/0x7f6
[ 7147.714114][   T73] 
[ 7147.715763][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7147.715763][   T73]      netdev_get_by_index+0x5e/0x80
[ 7147.715763][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7147.715763][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7147.715763][   T73]      ip6_route_add+0x1c/0x140
[ 7147.715763][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7147.715763][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7147.715763][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7147.715763][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7147.715763][   T73]      netlink_rcv_skb+0x130/0x360
[ 7147.715763][   T73]      netlink_unicast+0x449/0x710
[ 7147.715763][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7147.715763][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7147.715763][   T73]      ___sys_sendmsg+0xee/0x170
[ 7147.715763][   T73]      __sys_sendmsg+0xcd/0x170
[ 7147.715763][   T73]      do_syscall_64+0xc6/0x1e0
[ 7147.715763][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7147.715763][   T73] 
[ 7147.717762][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7147.717762][   T73]      netdev_get_by_index+0x5e/0x80
[ 7147.717762][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7147.717762][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7147.717762][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7147.717762][   T73]      ipv6_add_addr+0x411/0x2000
[ 7147.717762][   T73]      inet6_addr_add+0x30e/0xa40
[ 7147.717762][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7147.717762][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7147.717762][   T73]      netlink_rcv_skb+0x130/0x360
[ 7147.717762][   T73]      netlink_unicast+0x449/0x710
[ 7147.717762][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7147.717762][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7147.717762][   T73]      ___sys_sendmsg+0xee/0x170
[ 7147.717762][   T73]      __sys_sendmsg+0xcd/0x170
[ 7147.717762][   T73]      do_syscall_64+0xc6/0x1e0
[ 7147.717762][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7147.717762][   T73] 
[ 7147.719778][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7147.719778][   T73]      netdev_get_by_index+0x5e/0x80
[ 7147.719778][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7147.719778][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7147.719778][   T73]      ip6_route_add+0x1c/0x140
[ 7147.719778][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7147.719778][   T73]      addrconf_add_dev+0xe2/0x170
[ 7147.719778][   T73]      inet6_addr_add+0x12f/0xa40
[ 7147.719778][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7147.719778][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7147.719778][   T73]      netlink_rcv_skb+0x130/0x360
[ 7147.719778][   T73]      netlink_unicast+0x449/0x710
[ 7147.719778][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7147.719778][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7147.719778][   T73]      ___sys_sendmsg+0xee/0x170
[ 7147.719778][   T73]      __sys_sendmsg+0xcd/0x170
[ 7147.719778][   T73]      do_syscall_64+0xc6/0x1e0
[ 7147.719778][   T73] 
[ 7147.721767][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7147.721767][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7147.721767][   T73]      ipv6_find_idev+0x102/0x170
[ 7147.721767][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7147.721767][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7147.721767][   T73]      netlink_rcv_skb+0x130/0x360
[ 7147.721767][   T73]      netlink_unicast+0x449/0x710
[ 7147.721767][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7147.721767][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7147.721767][   T73]      ___sys_sendmsg+0xee/0x170
[ 7147.721767][   T73]      __sys_sendmsg+0xcd/0x170
[ 7147.721767][   T73]      do_syscall_64+0xc6/0x1e0
[ 7147.721767][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7147.721767][   T73] 
[ 7147.723293][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7147.723293][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7147.723293][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7147.723293][   T73]      ipv6_find_idev+0x102/0x170
[ 7147.723293][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7147.723293][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7147.723293][   T73]      netlink_rcv_skb+0x130/0x360
[ 7147.723293][   T73]      netlink_unicast+0x449/0x710
[ 7147.723293][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7147.723293][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7147.723293][   T73]      ___sys_sendmsg+0xee/0x170
[ 7147.723293][   T73]      __sys_sendmsg+0xcd/0x170
[ 7147.723293][   T73]      do_syscall_64+0xc6/0x1e0
[ 7147.723293][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7147.723293][   T73] 
[ 7147.724971][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 7147.725249][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7147.725249][   T73]      netdev_get_by_index+0x5e/0x80
[ 7147.725249][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7147.725249][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7147.725249][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 7147.725249][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 7147.725249][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 7147.725249][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 7147.725249][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 7147.725249][   T73]      addrconf_dad_begin+0x310/0x670
[ 7147.725249][   T73]      addrconf_dad_work+0x10b/0xab0
[ 7147.725249][   T73]      process_one_work+0x84d/0x18a0
[ 7147.725249][   T73]      worker_thread+0x587/0xd30
[ 7147.725249][   T73]      kthread+0x28a/0x350
[ 7147.725249][   T73]      ret_from_fork+0x31/0x70
[ 7147.725249][   T73]      ret_from_fork_asm+0x1a/0x30
[ 7147.725249][   T73] 
[ 7147.727159][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7147.727159][   T73]      netdev_get_by_index+0x5e/0x80
[ 7147.727159][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7147.727159][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7147.727159][   T73]      ip6_route_add+0x1c/0x140
[ 7147.727159][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7147.727159][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7147.727159][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7147.727159][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7147.727159][   T73]      netlink_rcv_skb+0x130/0x360
[ 7147.727159][   T73]      netlink_unicast+0x449/0x710
[ 7147.727159][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7147.727159][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7147.727159][   T73]      ___sys_sendmsg+0xee/0x170
[ 7147.727159][   T73]      __sys_sendmsg+0xcd/0x170
[ 7147.727159][   T73]      do_syscall_64+0xc6/0x1e0
[ 7147.727159][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7147.727159][   T73] 
[ 7147.729156][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7147.729156][   T73]      netdev_get_by_index+0x5e/0x80
[ 7147.729156][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7147.729156][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7147.729156][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7147.729156][   T73]      ipv6_add_addr+0x411/0x2000
[ 7147.729156][   T73]      inet6_addr_add+0x30e/0xa40
[ 7147.729156][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7147.729156][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7147.729156][   T73]      netlink_rcv_skb+0x130/0x360
[ 7147.729156][   T73]      netlink_unicast+0x449/0x710
[ 7147.729156][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7147.729156][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7147.729156][   T73]      ___sys_sendmsg+0xee/0x170
[ 7147.729156][   T73]      __sys_sendmsg+0xcd/0x170
[ 7147.729156][   T73]      do_syscall_64+0xc6/0x1e0
[ 7147.729156][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7147.729156][   T73] 
[ 7147.731139][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7147.731139][   T73]      netdev_get_by_index+0x5e/0x80
[ 7147.731139][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7147.731139][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7147.731139][   T73]      ip6_route_add+0x1c/0x140
[ 7147.731139][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7147.731139][   T73]      addrconf_add_dev+0xe2/0x170
[ 7147.731139][   T73]      inet6_addr_add+0x12f/0xa40
[ 7147.731139][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7147.731139][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7147.731139][   T73]      netlink_rcv_skb+0x130/0x360
[ 7147.731139][   T73]      netlink_unicast+0x449/0x710
[ 7147.731139][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7147.731139][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7147.731139][   T73]      ___sys_sendmsg+0xee/0x170
[ 7147.731139][   T73]      __sys_sendmsg+0xcd/0x170
[ 7147.731139][   T73]      do_syscall_64+0xc6/0x1e0
[ 7147.731139][   T73] 
[ 7147.733107][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7147.733107][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7147.733107][   T73]      ipv6_find_idev+0x102/0x170
[ 7147.733107][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7147.733107][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7147.733107][   T73]      netlink_rcv_skb+0x130/0x360
[ 7147.733107][   T73]      netlink_unicast+0x449/0x710
[ 7147.733107][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7147.733107][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7147.733107][   T73]      ___sys_sendmsg+0xee/0x170
[ 7147.733107][   T73]      __sys_sendmsg+0xcd/0x170
[ 7147.733107][   T73]      do_syscall_64+0xc6/0x1e0
[ 7147.733107][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7147.733107][   T73] 
[ 7147.734631][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7147.734631][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7147.734631][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7147.734631][   T73]      ipv6_find_idev+0x102/0x170
[ 7147.734631][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7147.734631][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7147.734631][   T73]      netlink_rcv_skb+0x130/0x360
[ 7147.734631][   T73]      netlink_unicast+0x449/0x710
[ 7147.734631][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7147.734631][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7147.734631][   T73]      ___sys_sendmsg+0xee/0x170
[ 7147.734631][   T73]      __sys_sendmsg+0xcd/0x170
[ 7147.734631][   T73]      do_syscall_64+0xc6/0x1e0
[ 7147.734631][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7147.734631][   T73] 
[ 7147.736311][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 7147.736574][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7147.736574][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 7147.736574][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 7147.736574][   T73]      fib6_nh_init+0xa22/0x1580
[ 7147.736574][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7147.736574][   T73]      ip6_route_add+0x1c/0x140
[ 7147.736574][   T73]      inet6_rtm_newroute+0x104/0x110
[ 7147.736574][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7147.736574][   T73]      netlink_rcv_skb+0x130/0x360
[ 7147.736574][   T73]      netlink_unicast+0x449/0x710
[ 7147.736574][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7147.736574][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7147.736574][   T73]      ___sys_sendmsg+0xee/0x170
[ 7147.736574][   T73]      __sys_sendmsg+0xcd/0x170
[ 7147.736574][   T73]      do_syscall_64+0xc6/0x1e0
[ 7147.736574][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7147.736574][   T73] 
[ 7147.738638][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 7147.738638][   T73]      dst_init+0x84/0x4a0
[ 7147.738638][   T73]      dst_alloc+0x97/0x150
[ 7147.738638][   T73]      ip6_dst_alloc+0x23/0x90
[ 7147.738638][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 7147.738638][   T73]      ip6_pol_route+0x56f/0x840
[ 7147.738638][   T73]      fib6_rule_lookup+0x456/0x630
[ 7147.738638][   T73]      ip6_route_input+0x59c/0xa50
[ 7147.738638][   T73]      ipv6_rcv+0x397/0x810
[ 7147.738638][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 7147.738638][   T73]      process_backlog+0x101/0x620
[ 7147.738638][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 7147.738638][   T73]      net_rx_action+0x495/0xbe0
[ 7147.738638][   T73]      __do_softirq+0x1b5/0x7f6
[ 7147.738638][   T73] 
[ 7147.740508][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7147.740508][   T73]      netdev_get_by_index+0x5e/0x80
[ 7147.740508][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7147.740508][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7147.740508][   T73]      ip6_route_add+0x1c/0x140
[ 7147.740508][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7147.740508][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7147.740508][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7147.740508][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7147.740508][   T73]      netlink_rcv_skb+0x130/0x360
[ 7147.740508][   T73]      netlink_unicast+0x449/0x710
[ 7147.740508][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7147.740508][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7147.740508][   T73]      ___sys_sendmsg+0xee/0x170
[ 7147.740508][   T73]      __sys_sendmsg+0xcd/0x170
[ 7147.740508][   T73]      do_syscall_64+0xc6/0x1e0
[ 7147.740508][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7147.740508][   T73] 
[ 7147.742748][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7147.742748][   T73]      netdev_get_by_index+0x5e/0x80
[ 7147.742748][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7147.742748][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7147.742748][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7147.742748][   T73]      ipv6_add_addr+0x411/0x2000
[ 7147.742748][   T73]      inet6_addr_add+0x30e/0xa40
[ 7147.742748][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7147.742748][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7147.742748][   T73]      netlink_rcv_skb+0x130/0x360
[ 7147.742748][   T73]      netlink_unicast+0x449/0x710
[ 7147.742748][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7147.742748][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7147.742748][   T73]      ___sys_sendmsg+0xee/0x170
[ 7147.742748][   T73]      __sys_sendmsg+0xcd/0x170
[ 7147.742748][   T73]      do_syscall_64+0xc6/0x1e0
[ 7147.742748][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7147.742748][   T73] 
[ 7147.744995][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7147.744995][   T73]      netdev_get_by_index+0x5e/0x80
[ 7147.744995][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7147.744995][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7147.744995][   T73]      ip6_route_add+0x1c/0x140
[ 7147.744995][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7147.744995][   T73]      addrconf_add_dev+0xe2/0x170
[ 7147.744995][   T73]      inet6_addr_add+0x12f/0xa40
[ 7147.744995][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7147.744995][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7147.744995][   T73]      netlink_rcv_skb+0x130/0x360
[ 7147.744995][   T73]      netlink_unicast+0x449/0x710
[ 7147.744995][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7147.744995][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7147.744995][   T73]      ___sys_sendmsg+0xee/0x170
[ 7147.744995][   T73]      __sys_sendmsg+0xcd/0x170
[ 7147.744995][   T73]      do_syscall_64+0xc6/0x1e0
[ 7147.744995][   T73] 
[ 7147.747138][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7147.747138][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7147.747138][   T73]      ipv6_find_idev+0x102/0x170
[ 7147.747138][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7147.747138][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7147.747138][   T73]      netlink_rcv_skb+0x130/0x360
[ 7147.747138][   T73]      netlink_unicast+0x449/0x710
[ 7147.747138][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7147.747138][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7147.747138][   T73]      ___sys_sendmsg+0xee/0x170
[ 7147.747138][   T73]      __sys_sendmsg+0xcd/0x170
[ 7147.747138][   T73]      do_syscall_64+0xc6/0x1e0
[ 7147.747138][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7147.747138][   T73] 
[ 7147.748927][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7147.748927][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7147.748927][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7147.748927][   T73]      ipv6_find_idev+0x102/0x170
[ 7147.748927][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7147.748927][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7147.748927][   T73]      netlink_rcv_skb+0x130/0x360
[ 7147.748927][   T73]      netlink_unicast+0x449/0x710
[ 7147.748927][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7147.748927][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7147.748927][   T73]      ___sys_sendmsg+0xee/0x170
[ 7147.748927][   T73]      __sys_sendmsg+0xcd/0x170
[ 7147.748927][   T73]      do_syscall_64+0xc6/0x1e0
[ 7147.748927][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7147.748927][   T73] 
[ 7147.750852][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 7147.751121][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7147.751121][   T73]      netdev_get_by_index+0x5e/0x80
[ 7147.751121][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7147.751121][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7147.751121][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 7147.751121][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 7147.751121][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 7147.751121][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 7147.751121][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 7147.751121][   T73]      addrconf_dad_begin+0x310/0x670
[ 7147.751121][   T73]      addrconf_dad_work+0x10b/0xab0
[ 7147.751121][   T73]      process_one_work+0x84d/0x18a0
[ 7147.751121][   T73]      worker_thread+0x587/0xd30
[ 7147.751121][   T73]      kthread+0x28a/0x350
[ 7147.751121][   T73]      ret_from_fork+0x31/0x70
[ 7147.751121][   T73]      ret_from_fork_asm+0x1a/0x30
[ 7147.751121][   T73] 
[ 7147.753289][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7147.753289][   T73]      netdev_get_by_index+0x5e/0x80
[ 7147.753289][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7147.753289][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7147.753289][   T73]      ip6_route_add+0x1c/0x140
[ 7147.753289][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7147.753289][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7147.753289][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7147.753289][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7147.753289][   T73]      netlink_rcv_skb+0x130/0x360
[ 7147.753289][   T73]      netlink_unicast+0x449/0x710
[ 7147.753289][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7147.753289][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7147.753289][   T73]      ___sys_sendmsg+0xee/0x170
[ 7147.753289][   T73]      __sys_sendmsg+0xcd/0x170
[ 7147.753289][   T73]      do_syscall_64+0xc6/0x1e0
[ 7147.753289][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7147.753289][   T73] 
[ 7147.755454][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7147.755454][   T73]      netdev_get_by_index+0x5e/0x80
[ 7147.755454][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7147.755454][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7147.755454][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7147.755454][   T73]      ipv6_add_addr+0x411/0x2000
[ 7147.755454][   T73]      inet6_addr_add+0x30e/0xa40
[ 7147.755454][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7147.755454][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7147.755454][   T73]      netlink_rcv_skb+0x130/0x360
[ 7147.755454][   T73]      netlink_unicast+0x449/0x710
[ 7147.755454][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7147.755454][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7147.755454][   T73]      ___sys_sendmsg+0xee/0x170
[ 7147.755454][   T73]      __sys_sendmsg+0xcd/0x170
[ 7147.755454][   T73]      do_syscall_64+0xc6/0x1e0
[ 7147.755454][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7147.755454][   T73] 
[ 7147.757680][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7147.757680][   T73]      netdev_get_by_index+0x5e/0x80
[ 7147.757680][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7147.757680][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7147.757680][   T73]      ip6_route_add+0x1c/0x140
[ 7147.757680][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7147.757680][   T73]      addrconf_add_dev+0xe2/0x170
[ 7147.757680][   T73]      inet6_addr_add+0x12f/0xa40
[ 7147.757680][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7147.757680][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7147.757680][   T73]      netlink_rcv_skb+0x130/0x360
[ 7147.757680][   T73]      netlink_unicast+0x449/0x710
[ 7147.757680][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7147.757680][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7147.757680][   T73]      ___sys_sendmsg+0xee/0x170
[ 7147.757680][   T73]      __sys_sendmsg+0xcd/0x170
[ 7147.757680][   T73]      do_syscall_64+0xc6/0x1e0
[ 7147.757680][   T73] 
[ 7147.759934][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7147.759934][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7147.759934][   T73]      ipv6_find_idev+0x102/0x170
[ 7147.759934][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7147.759934][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7147.759934][   T73]      netlink_rcv_skb+0x130/0x360
[ 7147.759934][   T73]      netlink_unicast+0x449/0x710
[ 7147.759934][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7147.759934][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7147.759934][   T73]      ___sys_sendmsg+0xee/0x170
[ 7147.759934][   T73]      __sys_sendmsg+0xcd/0x170
[ 7147.759934][   T73]      do_syscall_64+0xc6/0x1e0
[ 7147.759934][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7147.759934][   T73] 
[ 7147.761641][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7147.761641][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7147.761641][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7147.761641][   T73]      ipv6_find_idev+0x102/0x170
[ 7147.761641][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7147.761641][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7147.761641][   T73]      netlink_rcv_skb+0x130/0x360
[ 7147.761641][   T73]      netlink_unicast+0x449/0x710
[ 7147.761641][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7147.761641][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7147.761641][   T73]      ___sys_sendmsg+0xee/0x170
[ 7147.761641][   T73]      __sys_sendmsg+0xcd/0x170
[ 7147.761641][   T73]      do_syscall_64+0xc6/0x1e0
[ 7147.761641][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7147.761641][   T73] 
[ 7158.015682][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 7158.016136][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7158.016136][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 7158.016136][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 7158.016136][   T73]      fib6_nh_init+0xa22/0x1580
[ 7158.016136][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7158.016136][   T73]      ip6_route_add+0x1c/0x140
[ 7158.016136][   T73]      inet6_rtm_newroute+0x104/0x110
[ 7158.016136][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7158.016136][   T73]      netlink_rcv_skb+0x130/0x360
[ 7158.016136][   T73]      netlink_unicast+0x449/0x710
[ 7158.016136][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7158.016136][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7158.016136][   T73]      ___sys_sendmsg+0xee/0x170
[ 7158.016136][   T73]      __sys_sendmsg+0xcd/0x170
[ 7158.016136][   T73]      do_syscall_64+0xc6/0x1e0
[ 7158.016136][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7158.016136][   T73] 
[ 7158.018036][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 7158.018036][   T73]      dst_init+0x84/0x4a0
[ 7158.018036][   T73]      dst_alloc+0x97/0x150
[ 7158.018036][   T73]      ip6_dst_alloc+0x23/0x90
[ 7158.018036][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 7158.018036][   T73]      ip6_pol_route+0x56f/0x840
[ 7158.018036][   T73]      fib6_rule_lookup+0x456/0x630
[ 7158.018036][   T73]      ip6_route_input+0x59c/0xa50
[ 7158.018036][   T73]      ipv6_rcv+0x397/0x810
[ 7158.018036][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 7158.018036][   T73]      process_backlog+0x101/0x620
[ 7158.018036][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 7158.018036][   T73]      net_rx_action+0x495/0xbe0
[ 7158.018036][   T73]      __do_softirq+0x1b5/0x7f6
[ 7158.018036][   T73] 
[ 7158.019687][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7158.019687][   T73]      netdev_get_by_index+0x5e/0x80
[ 7158.019687][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7158.019687][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7158.019687][   T73]      ip6_route_add+0x1c/0x140
[ 7158.019687][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7158.019687][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7158.019687][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7158.019687][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7158.019687][   T73]      netlink_rcv_skb+0x130/0x360
[ 7158.019687][   T73]      netlink_unicast+0x449/0x710
[ 7158.019687][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7158.019687][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7158.019687][   T73]      ___sys_sendmsg+0xee/0x170
[ 7158.019687][   T73]      __sys_sendmsg+0xcd/0x170
[ 7158.019687][   T73]      do_syscall_64+0xc6/0x1e0
[ 7158.019687][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7158.019687][   T73] 
[ 7158.021717][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7158.021717][   T73]      netdev_get_by_index+0x5e/0x80
[ 7158.021717][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7158.021717][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7158.021717][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7158.021717][   T73]      ipv6_add_addr+0x411/0x2000
[ 7158.021717][   T73]      inet6_addr_add+0x30e/0xa40
[ 7158.021717][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7158.021717][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7158.021717][   T73]      netlink_rcv_skb+0x130/0x360
[ 7158.021717][   T73]      netlink_unicast+0x449/0x710
[ 7158.021717][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7158.021717][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7158.021717][   T73]      ___sys_sendmsg+0xee/0x170
[ 7158.021717][   T73]      __sys_sendmsg+0xcd/0x170
[ 7158.021717][   T73]      do_syscall_64+0xc6/0x1e0
[ 7158.021717][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7158.021717][   T73] 
[ 7158.024275][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7158.024275][   T73]      netdev_get_by_index+0x5e/0x80
[ 7158.024275][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7158.024275][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7158.024275][   T73]      ip6_route_add+0x1c/0x140
[ 7158.024275][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7158.024275][   T73]      addrconf_add_dev+0xe2/0x170
[ 7158.024275][   T73]      inet6_addr_add+0x12f/0xa40
[ 7158.024275][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7158.024275][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7158.024275][   T73]      netlink_rcv_skb+0x130/0x360
[ 7158.024275][   T73]      netlink_unicast+0x449/0x710
[ 7158.024275][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7158.024275][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7158.024275][   T73]      ___sys_sendmsg+0xee/0x170
[ 7158.024275][   T73]      __sys_sendmsg+0xcd/0x170
[ 7158.024275][   T73]      do_syscall_64+0xc6/0x1e0
[ 7158.024275][   T73] 
[ 7158.026255][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7158.026255][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7158.026255][   T73]      ipv6_find_idev+0x102/0x170
[ 7158.026255][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7158.026255][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7158.026255][   T73]      netlink_rcv_skb+0x130/0x360
[ 7158.026255][   T73]      netlink_unicast+0x449/0x710
[ 7158.026255][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7158.026255][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7158.026255][   T73]      ___sys_sendmsg+0xee/0x170
[ 7158.026255][   T73]      __sys_sendmsg+0xcd/0x170
[ 7158.026255][   T73]      do_syscall_64+0xc6/0x1e0
[ 7158.026255][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7158.026255][   T73] 
[ 7158.027828][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7158.027828][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7158.027828][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7158.027828][   T73]      ipv6_find_idev+0x102/0x170
[ 7158.027828][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7158.027828][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7158.027828][   T73]      netlink_rcv_skb+0x130/0x360
[ 7158.027828][   T73]      netlink_unicast+0x449/0x710
[ 7158.027828][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7158.027828][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7158.027828][   T73]      ___sys_sendmsg+0xee/0x170
[ 7158.027828][   T73]      __sys_sendmsg+0xcd/0x170
[ 7158.027828][   T73]      do_syscall_64+0xc6/0x1e0
[ 7158.027828][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7158.027828][   T73] 
[ 7158.029538][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 7158.029835][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7158.029835][   T73]      netdev_get_by_index+0x5e/0x80
[ 7158.029835][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7158.029835][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7158.029835][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 7158.029835][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 7158.029835][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 7158.029835][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 7158.029835][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 7158.029835][   T73]      addrconf_dad_begin+0x310/0x670
[ 7158.029835][   T73]      addrconf_dad_work+0x10b/0xab0
[ 7158.029835][   T73]      process_one_work+0x84d/0x18a0
[ 7158.029835][   T73]      worker_thread+0x587/0xd30
[ 7158.029835][   T73]      kthread+0x28a/0x350
[ 7158.029835][   T73]      ret_from_fork+0x31/0x70
[ 7158.029835][   T73]      ret_from_fork_asm+0x1a/0x30
[ 7158.029835][   T73] 
[ 7158.031766][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7158.031766][   T73]      netdev_get_by_index+0x5e/0x80
[ 7158.031766][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7158.031766][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7158.031766][   T73]      ip6_route_add+0x1c/0x140
[ 7158.031766][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7158.031766][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7158.031766][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7158.031766][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7158.031766][   T73]      netlink_rcv_skb+0x130/0x360
[ 7158.031766][   T73]      netlink_unicast+0x449/0x710
[ 7158.031766][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7158.031766][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7158.031766][   T73]      ___sys_sendmsg+0xee/0x170
[ 7158.031766][   T73]      __sys_sendmsg+0xcd/0x170
[ 7158.031766][   T73]      do_syscall_64+0xc6/0x1e0
[ 7158.031766][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7158.031766][   T73] 
[ 7158.033787][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7158.033787][   T73]      netdev_get_by_index+0x5e/0x80
[ 7158.033787][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7158.033787][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7158.033787][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7158.033787][   T73]      ipv6_add_addr+0x411/0x2000
[ 7158.033787][   T73]      inet6_addr_add+0x30e/0xa40
[ 7158.033787][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7158.033787][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7158.033787][   T73]      netlink_rcv_skb+0x130/0x360
[ 7158.033787][   T73]      netlink_unicast+0x449/0x710
[ 7158.033787][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7158.033787][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7158.033787][   T73]      ___sys_sendmsg+0xee/0x170
[ 7158.033787][   T73]      __sys_sendmsg+0xcd/0x170
[ 7158.033787][   T73]      do_syscall_64+0xc6/0x1e0
[ 7158.033787][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7158.033787][   T73] 
[ 7158.035797][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7158.035797][   T73]      netdev_get_by_index+0x5e/0x80
[ 7158.035797][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7158.035797][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7158.035797][   T73]      ip6_route_add+0x1c/0x140
[ 7158.035797][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7158.035797][   T73]      addrconf_add_dev+0xe2/0x170
[ 7158.035797][   T73]      inet6_addr_add+0x12f/0xa40
[ 7158.035797][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7158.035797][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7158.035797][   T73]      netlink_rcv_skb+0x130/0x360
[ 7158.035797][   T73]      netlink_unicast+0x449/0x710
[ 7158.035797][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7158.035797][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7158.035797][   T73]      ___sys_sendmsg+0xee/0x170
[ 7158.035797][   T73]      __sys_sendmsg+0xcd/0x170
[ 7158.035797][   T73]      do_syscall_64+0xc6/0x1e0
[ 7158.035797][   T73] 
[ 7158.037782][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7158.037782][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7158.037782][   T73]      ipv6_find_idev+0x102/0x170
[ 7158.037782][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7158.037782][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7158.037782][   T73]      netlink_rcv_skb+0x130/0x360
[ 7158.037782][   T73]      netlink_unicast+0x449/0x710
[ 7158.037782][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7158.037782][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7158.037782][   T73]      ___sys_sendmsg+0xee/0x170
[ 7158.037782][   T73]      __sys_sendmsg+0xcd/0x170
[ 7158.037782][   T73]      do_syscall_64+0xc6/0x1e0
[ 7158.037782][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7158.037782][   T73] 
[ 7158.039336][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7158.039336][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7158.039336][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7158.039336][   T73]      ipv6_find_idev+0x102/0x170
[ 7158.039336][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7158.039336][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7158.039336][   T73]      netlink_rcv_skb+0x130/0x360
[ 7158.039336][   T73]      netlink_unicast+0x449/0x710
[ 7158.039336][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7158.039336][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7158.039336][   T73]      ___sys_sendmsg+0xee/0x170
[ 7158.039336][   T73]      __sys_sendmsg+0xcd/0x170
[ 7158.039336][   T73]      do_syscall_64+0xc6/0x1e0
[ 7158.039336][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7158.039336][   T73] 
[ 7158.041033][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 7158.041363][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7158.041363][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 7158.041363][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 7158.041363][   T73]      fib6_nh_init+0xa22/0x1580
[ 7158.041363][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7158.041363][   T73]      ip6_route_add+0x1c/0x140
[ 7158.041363][   T73]      inet6_rtm_newroute+0x104/0x110
[ 7158.041363][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7158.041363][   T73]      netlink_rcv_skb+0x130/0x360
[ 7158.041363][   T73]      netlink_unicast+0x449/0x710
[ 7158.041363][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7158.041363][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7158.041363][   T73]      ___sys_sendmsg+0xee/0x170
[ 7158.041363][   T73]      __sys_sendmsg+0xcd/0x170
[ 7158.041363][   T73]      do_syscall_64+0xc6/0x1e0
[ 7158.041363][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7158.041363][   T73] 
[ 7158.043390][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 7158.043390][   T73]      dst_init+0x84/0x4a0
[ 7158.043390][   T73]      dst_alloc+0x97/0x150
[ 7158.043390][   T73]      ip6_dst_alloc+0x23/0x90
[ 7158.043390][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 7158.043390][   T73]      ip6_pol_route+0x56f/0x840
[ 7158.043390][   T73]      fib6_rule_lookup+0x456/0x630
[ 7158.043390][   T73]      ip6_route_input+0x59c/0xa50
[ 7158.043390][   T73]      ipv6_rcv+0x397/0x810
[ 7158.043390][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 7158.043390][   T73]      process_backlog+0x101/0x620
[ 7158.043390][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 7158.043390][   T73]      net_rx_action+0x495/0xbe0
[ 7158.043390][   T73]      __do_softirq+0x1b5/0x7f6
[ 7158.043390][   T73] 
[ 7158.045089][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7158.045089][   T73]      netdev_get_by_index+0x5e/0x80
[ 7158.045089][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7158.045089][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7158.045089][   T73]      ip6_route_add+0x1c/0x140
[ 7158.045089][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7158.045089][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7158.045089][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7158.045089][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7158.045089][   T73]      netlink_rcv_skb+0x130/0x360
[ 7158.045089][   T73]      netlink_unicast+0x449/0x710
[ 7158.045089][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7158.045089][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7158.045089][   T73]      ___sys_sendmsg+0xee/0x170
[ 7158.045089][   T73]      __sys_sendmsg+0xcd/0x170
[ 7158.045089][   T73]      do_syscall_64+0xc6/0x1e0
[ 7158.045089][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7158.045089][   T73] 
[ 7158.049413][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7158.049413][   T73]      netdev_get_by_index+0x5e/0x80
[ 7158.049413][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7158.049413][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7158.049413][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7158.049413][   T73]      ipv6_add_addr+0x411/0x2000
[ 7158.049413][   T73]      inet6_addr_add+0x30e/0xa40
[ 7158.049413][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7158.049413][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7158.049413][   T73]      netlink_rcv_skb+0x130/0x360
[ 7158.049413][   T73]      netlink_unicast+0x449/0x710
[ 7158.049413][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7158.049413][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7158.049413][   T73]      ___sys_sendmsg+0xee/0x170
[ 7158.049413][   T73]      __sys_sendmsg+0xcd/0x170
[ 7158.049413][   T73]      do_syscall_64+0xc6/0x1e0
[ 7158.049413][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7158.049413][   T73] 
[ 7158.051573][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7158.051573][   T73]      netdev_get_by_index+0x5e/0x80
[ 7158.051573][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7158.051573][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7158.051573][   T73]      ip6_route_add+0x1c/0x140
[ 7158.051573][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7158.051573][   T73]      addrconf_add_dev+0xe2/0x170
[ 7158.051573][   T73]      inet6_addr_add+0x12f/0xa40
[ 7158.051573][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7158.051573][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7158.051573][   T73]      netlink_rcv_skb+0x130/0x360
[ 7158.051573][   T73]      netlink_unicast+0x449/0x710
[ 7158.051573][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7158.051573][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7158.051573][   T73]      ___sys_sendmsg+0xee/0x170
[ 7158.051573][   T73]      __sys_sendmsg+0xcd/0x170
[ 7158.051573][   T73]      do_syscall_64+0xc6/0x1e0
[ 7158.051573][   T73] 
[ 7158.053699][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7158.053699][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7158.053699][   T73]      ipv6_find_idev+0x102/0x170
[ 7158.053699][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7158.053699][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7158.053699][   T73]      netlink_rcv_skb+0x130/0x360
[ 7158.053699][   T73]      netlink_unicast+0x449/0x710
[ 7158.053699][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7158.053699][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7158.053699][   T73]      ___sys_sendmsg+0xee/0x170
[ 7158.053699][   T73]      __sys_sendmsg+0xcd/0x170
[ 7158.053699][   T73]      do_syscall_64+0xc6/0x1e0
[ 7158.053699][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7158.053699][   T73] 
[ 7158.055327][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7158.055327][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7158.055327][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7158.055327][   T73]      ipv6_find_idev+0x102/0x170
[ 7158.055327][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7158.055327][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7158.055327][   T73]      netlink_rcv_skb+0x130/0x360
[ 7158.055327][   T73]      netlink_unicast+0x449/0x710
[ 7158.055327][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7158.055327][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7158.055327][   T73]      ___sys_sendmsg+0xee/0x170
[ 7158.055327][   T73]      __sys_sendmsg+0xcd/0x170
[ 7158.055327][   T73]      do_syscall_64+0xc6/0x1e0
[ 7158.055327][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7158.055327][   T73] 
[ 7158.057174][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 7158.057449][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7158.057449][   T73]      netdev_get_by_index+0x5e/0x80
[ 7158.057449][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7158.057449][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7158.057449][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 7158.057449][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 7158.057449][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 7158.057449][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 7158.057449][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 7158.057449][   T73]      addrconf_dad_begin+0x310/0x670
[ 7158.057449][   T73]      addrconf_dad_work+0x10b/0xab0
[ 7158.057449][   T73]      process_one_work+0x84d/0x18a0
[ 7158.057449][   T73]      worker_thread+0x587/0xd30
[ 7158.057449][   T73]      kthread+0x28a/0x350
[ 7158.057449][   T73]      ret_from_fork+0x31/0x70
[ 7158.057449][   T73]      ret_from_fork_asm+0x1a/0x30
[ 7158.057449][   T73] 
[ 7158.059535][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7158.059535][   T73]      netdev_get_by_index+0x5e/0x80
[ 7158.059535][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7158.059535][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7158.059535][   T73]      ip6_route_add+0x1c/0x140
[ 7158.059535][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7158.059535][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7158.059535][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7158.059535][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7158.059535][   T73]      netlink_rcv_skb+0x130/0x360
[ 7158.059535][   T73]      netlink_unicast+0x449/0x710
[ 7158.059535][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7158.059535][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7158.059535][   T73]      ___sys_sendmsg+0xee/0x170
[ 7158.059535][   T73]      __sys_sendmsg+0xcd/0x170
[ 7158.059535][   T73]      do_syscall_64+0xc6/0x1e0
[ 7158.059535][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7158.059535][   T73] 
[ 7158.061694][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7158.061694][   T73]      netdev_get_by_index+0x5e/0x80
[ 7158.061694][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7158.061694][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7158.061694][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7158.061694][   T73]      ipv6_add_addr+0x411/0x2000
[ 7158.061694][   T73]      inet6_addr_add+0x30e/0xa40
[ 7158.061694][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7158.061694][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7158.061694][   T73]      netlink_rcv_skb+0x130/0x360
[ 7158.061694][   T73]      netlink_unicast+0x449/0x710
[ 7158.061694][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7158.061694][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7158.061694][   T73]      ___sys_sendmsg+0xee/0x170
[ 7158.061694][   T73]      __sys_sendmsg+0xcd/0x170
[ 7158.061694][   T73]      do_syscall_64+0xc6/0x1e0
[ 7158.061694][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7158.061694][   T73] 
[ 7158.063853][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7158.063853][   T73]      netdev_get_by_index+0x5e/0x80
[ 7158.063853][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7158.063853][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7158.063853][   T73]      ip6_route_add+0x1c/0x140
[ 7158.063853][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7158.063853][   T73]      addrconf_add_dev+0xe2/0x170
[ 7158.063853][   T73]      inet6_addr_add+0x12f/0xa40
[ 7158.063853][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7158.063853][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7158.063853][   T73]      netlink_rcv_skb+0x130/0x360
[ 7158.063853][   T73]      netlink_unicast+0x449/0x710
[ 7158.063853][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7158.063853][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7158.063853][   T73]      ___sys_sendmsg+0xee/0x170
[ 7158.063853][   T73]      __sys_sendmsg+0xcd/0x170
[ 7158.063853][   T73]      do_syscall_64+0xc6/0x1e0
[ 7158.063853][   T73] 
[ 7158.065968][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7158.065968][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7158.065968][   T73]      ipv6_find_idev+0x102/0x170
[ 7158.065968][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7158.065968][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7158.065968][   T73]      netlink_rcv_skb+0x130/0x360
[ 7158.065968][   T73]      netlink_unicast+0x449/0x710
[ 7158.065968][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7158.065968][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7158.065968][   T73]      ___sys_sendmsg+0xee/0x170
[ 7158.065968][   T73]      __sys_sendmsg+0xcd/0x170
[ 7158.065968][   T73]      do_syscall_64+0xc6/0x1e0
[ 7158.065968][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7158.065968][   T73] 
[ 7158.067593][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7158.067593][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7158.067593][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7158.067593][   T73]      ipv6_find_idev+0x102/0x170
[ 7158.067593][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7158.067593][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7158.067593][   T73]      netlink_rcv_skb+0x130/0x360
[ 7158.067593][   T73]      netlink_unicast+0x449/0x710
[ 7158.067593][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7158.067593][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7158.067593][   T73]      ___sys_sendmsg+0xee/0x170
[ 7158.067593][   T73]      __sys_sendmsg+0xcd/0x170
[ 7158.067593][   T73]      do_syscall_64+0xc6/0x1e0
[ 7158.067593][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7158.067593][   T73] 
[ 7168.119766][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 7168.120215][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7168.120215][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 7168.120215][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 7168.120215][   T73]      fib6_nh_init+0xa22/0x1580
[ 7168.120215][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7168.120215][   T73]      ip6_route_add+0x1c/0x140
[ 7168.120215][   T73]      inet6_rtm_newroute+0x104/0x110
[ 7168.120215][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7168.120215][   T73]      netlink_rcv_skb+0x130/0x360
[ 7168.120215][   T73]      netlink_unicast+0x449/0x710
[ 7168.120215][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7168.120215][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7168.120215][   T73]      ___sys_sendmsg+0xee/0x170
[ 7168.120215][   T73]      __sys_sendmsg+0xcd/0x170
[ 7168.120215][   T73]      do_syscall_64+0xc6/0x1e0
[ 7168.120215][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7168.120215][   T73] 
[ 7168.122146][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 7168.122146][   T73]      dst_init+0x84/0x4a0
[ 7168.122146][   T73]      dst_alloc+0x97/0x150
[ 7168.122146][   T73]      ip6_dst_alloc+0x23/0x90
[ 7168.122146][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 7168.122146][   T73]      ip6_pol_route+0x56f/0x840
[ 7168.122146][   T73]      fib6_rule_lookup+0x456/0x630
[ 7168.122146][   T73]      ip6_route_input+0x59c/0xa50
[ 7168.122146][   T73]      ipv6_rcv+0x397/0x810
[ 7168.122146][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 7168.122146][   T73]      process_backlog+0x101/0x620
[ 7168.122146][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 7168.122146][   T73]      net_rx_action+0x495/0xbe0
[ 7168.122146][   T73]      __do_softirq+0x1b5/0x7f6
[ 7168.122146][   T73] 
[ 7168.123843][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7168.123843][   T73]      netdev_get_by_index+0x5e/0x80
[ 7168.123843][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7168.123843][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7168.123843][   T73]      ip6_route_add+0x1c/0x140
[ 7168.123843][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7168.123843][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7168.123843][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7168.123843][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7168.123843][   T73]      netlink_rcv_skb+0x130/0x360
[ 7168.123843][   T73]      netlink_unicast+0x449/0x710
[ 7168.123843][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7168.123843][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7168.123843][   T73]      ___sys_sendmsg+0xee/0x170
[ 7168.123843][   T73]      __sys_sendmsg+0xcd/0x170
[ 7168.123843][   T73]      do_syscall_64+0xc6/0x1e0
[ 7168.123843][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7168.123843][   T73] 
[ 7168.125854][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7168.125854][   T73]      netdev_get_by_index+0x5e/0x80
[ 7168.125854][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7168.125854][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7168.125854][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7168.125854][   T73]      ipv6_add_addr+0x411/0x2000
[ 7168.125854][   T73]      inet6_addr_add+0x30e/0xa40
[ 7168.125854][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7168.125854][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7168.125854][   T73]      netlink_rcv_skb+0x130/0x360
[ 7168.125854][   T73]      netlink_unicast+0x449/0x710
[ 7168.125854][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7168.125854][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7168.125854][   T73]      ___sys_sendmsg+0xee/0x170
[ 7168.125854][   T73]      __sys_sendmsg+0xcd/0x170
[ 7168.125854][   T73]      do_syscall_64+0xc6/0x1e0
[ 7168.125854][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7168.125854][   T73] 
[ 7168.127881][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7168.127881][   T73]      netdev_get_by_index+0x5e/0x80
[ 7168.127881][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7168.127881][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7168.127881][   T73]      ip6_route_add+0x1c/0x140
[ 7168.127881][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7168.127881][   T73]      addrconf_add_dev+0xe2/0x170
[ 7168.127881][   T73]      inet6_addr_add+0x12f/0xa40
[ 7168.127881][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7168.127881][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7168.127881][   T73]      netlink_rcv_skb+0x130/0x360
[ 7168.127881][   T73]      netlink_unicast+0x449/0x710
[ 7168.127881][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7168.127881][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7168.127881][   T73]      ___sys_sendmsg+0xee/0x170
[ 7168.127881][   T73]      __sys_sendmsg+0xcd/0x170
[ 7168.127881][   T73]      do_syscall_64+0xc6/0x1e0
[ 7168.127881][   T73] 
[ 7168.129848][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7168.129848][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7168.129848][   T73]      ipv6_find_idev+0x102/0x170
[ 7168.129848][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7168.129848][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7168.129848][   T73]      netlink_rcv_skb+0x130/0x360
[ 7168.129848][   T73]      netlink_unicast+0x449/0x710
[ 7168.129848][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7168.129848][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7168.129848][   T73]      ___sys_sendmsg+0xee/0x170
[ 7168.129848][   T73]      __sys_sendmsg+0xcd/0x170
[ 7168.129848][   T73]      do_syscall_64+0xc6/0x1e0
[ 7168.129848][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7168.129848][   T73] 
[ 7168.131432][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7168.131432][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7168.131432][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7168.131432][   T73]      ipv6_find_idev+0x102/0x170
[ 7168.131432][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7168.131432][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7168.131432][   T73]      netlink_rcv_skb+0x130/0x360
[ 7168.131432][   T73]      netlink_unicast+0x449/0x710
[ 7168.131432][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7168.131432][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7168.131432][   T73]      ___sys_sendmsg+0xee/0x170
[ 7168.131432][   T73]      __sys_sendmsg+0xcd/0x170
[ 7168.131432][   T73]      do_syscall_64+0xc6/0x1e0
[ 7168.131432][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7168.131432][   T73] 
[ 7168.133126][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 7168.133419][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7168.133419][   T73]      netdev_get_by_index+0x5e/0x80
[ 7168.133419][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7168.133419][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7168.133419][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 7168.133419][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 7168.133419][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 7168.133419][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 7168.133419][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 7168.133419][   T73]      addrconf_dad_begin+0x310/0x670
[ 7168.133419][   T73]      addrconf_dad_work+0x10b/0xab0
[ 7168.133419][   T73]      process_one_work+0x84d/0x18a0
[ 7168.133419][   T73]      worker_thread+0x587/0xd30
[ 7168.133419][   T73]      kthread+0x28a/0x350
[ 7168.133419][   T73]      ret_from_fork+0x31/0x70
[ 7168.133419][   T73]      ret_from_fork_asm+0x1a/0x30
[ 7168.133419][   T73] 
[ 7168.135337][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7168.135337][   T73]      netdev_get_by_index+0x5e/0x80
[ 7168.135337][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7168.135337][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7168.135337][   T73]      ip6_route_add+0x1c/0x140
[ 7168.135337][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7168.135337][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7168.135337][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7168.135337][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7168.135337][   T73]      netlink_rcv_skb+0x130/0x360
[ 7168.135337][   T73]      netlink_unicast+0x449/0x710
[ 7168.135337][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7168.135337][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7168.135337][   T73]      ___sys_sendmsg+0xee/0x170
[ 7168.135337][   T73]      __sys_sendmsg+0xcd/0x170
[ 7168.135337][   T73]      do_syscall_64+0xc6/0x1e0
[ 7168.135337][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7168.135337][   T73] 
[ 7168.137354][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7168.137354][   T73]      netdev_get_by_index+0x5e/0x80
[ 7168.137354][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7168.137354][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7168.137354][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7168.137354][   T73]      ipv6_add_addr+0x411/0x2000
[ 7168.137354][   T73]      inet6_addr_add+0x30e/0xa40
[ 7168.137354][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7168.137354][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7168.137354][   T73]      netlink_rcv_skb+0x130/0x360
[ 7168.137354][   T73]      netlink_unicast+0x449/0x710
[ 7168.137354][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7168.137354][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7168.137354][   T73]      ___sys_sendmsg+0xee/0x170
[ 7168.137354][   T73]      __sys_sendmsg+0xcd/0x170
[ 7168.137354][   T73]      do_syscall_64+0xc6/0x1e0
[ 7168.137354][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7168.137354][   T73] 
[ 7168.139366][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7168.139366][   T73]      netdev_get_by_index+0x5e/0x80
[ 7168.139366][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7168.139366][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7168.139366][   T73]      ip6_route_add+0x1c/0x140
[ 7168.139366][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7168.139366][   T73]      addrconf_add_dev+0xe2/0x170
[ 7168.139366][   T73]      inet6_addr_add+0x12f/0xa40
[ 7168.139366][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7168.139366][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7168.139366][   T73]      netlink_rcv_skb+0x130/0x360
[ 7168.139366][   T73]      netlink_unicast+0x449/0x710
[ 7168.139366][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7168.139366][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7168.139366][   T73]      ___sys_sendmsg+0xee/0x170
[ 7168.139366][   T73]      __sys_sendmsg+0xcd/0x170
[ 7168.139366][   T73]      do_syscall_64+0xc6/0x1e0
[ 7168.139366][   T73] 
[ 7168.141343][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7168.141343][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7168.141343][   T73]      ipv6_find_idev+0x102/0x170
[ 7168.141343][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7168.141343][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7168.141343][   T73]      netlink_rcv_skb+0x130/0x360
[ 7168.141343][   T73]      netlink_unicast+0x449/0x710
[ 7168.141343][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7168.141343][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7168.141343][   T73]      ___sys_sendmsg+0xee/0x170
[ 7168.141343][   T73]      __sys_sendmsg+0xcd/0x170
[ 7168.141343][   T73]      do_syscall_64+0xc6/0x1e0
[ 7168.141343][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7168.141343][   T73] 
[ 7168.142895][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7168.142895][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7168.142895][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7168.142895][   T73]      ipv6_find_idev+0x102/0x170
[ 7168.142895][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7168.142895][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7168.142895][   T73]      netlink_rcv_skb+0x130/0x360
[ 7168.142895][   T73]      netlink_unicast+0x449/0x710
[ 7168.142895][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7168.142895][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7168.142895][   T73]      ___sys_sendmsg+0xee/0x170
[ 7168.142895][   T73]      __sys_sendmsg+0xcd/0x170
[ 7168.142895][   T73]      do_syscall_64+0xc6/0x1e0
[ 7168.142895][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7168.142895][   T73] 
[ 7168.144597][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 7168.144883][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7168.144883][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 7168.144883][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 7168.144883][   T73]      fib6_nh_init+0xa22/0x1580
[ 7168.144883][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7168.144883][   T73]      ip6_route_add+0x1c/0x140
[ 7168.144883][   T73]      inet6_rtm_newroute+0x104/0x110
[ 7168.144883][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7168.144883][   T73]      netlink_rcv_skb+0x130/0x360
[ 7168.144883][   T73]      netlink_unicast+0x449/0x710
[ 7168.144883][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7168.144883][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7168.144883][   T73]      ___sys_sendmsg+0xee/0x170
[ 7168.144883][   T73]      __sys_sendmsg+0xcd/0x170
[ 7168.144883][   T73]      do_syscall_64+0xc6/0x1e0
[ 7168.144883][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7168.144883][   T73] 
[ 7168.146952][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 7168.146952][   T73]      dst_init+0x84/0x4a0
[ 7168.146952][   T73]      dst_alloc+0x97/0x150
[ 7168.146952][   T73]      ip6_dst_alloc+0x23/0x90
[ 7168.146952][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 7168.146952][   T73]      ip6_pol_route+0x56f/0x840
[ 7168.146952][   T73]      fib6_rule_lookup+0x456/0x630
[ 7168.146952][   T73]      ip6_route_input+0x59c/0xa50
[ 7168.146952][   T73]      ipv6_rcv+0x397/0x810
[ 7168.146952][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 7168.146952][   T73]      process_backlog+0x101/0x620
[ 7168.146952][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 7168.146952][   T73]      net_rx_action+0x495/0xbe0
[ 7168.146952][   T73]      __do_softirq+0x1b5/0x7f6
[ 7168.146952][   T73] 
[ 7168.148858][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7168.148858][   T73]      netdev_get_by_index+0x5e/0x80
[ 7168.148858][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7168.148858][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7168.148858][   T73]      ip6_route_add+0x1c/0x140
[ 7168.148858][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7168.148858][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7168.148858][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7168.148858][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7168.148858][   T73]      netlink_rcv_skb+0x130/0x360
[ 7168.148858][   T73]      netlink_unicast+0x449/0x710
[ 7168.148858][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7168.148858][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7168.148858][   T73]      ___sys_sendmsg+0xee/0x170
[ 7168.148858][   T73]      __sys_sendmsg+0xcd/0x170
[ 7168.148858][   T73]      do_syscall_64+0xc6/0x1e0
[ 7168.148858][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7168.148858][   T73] 
[ 7168.151118][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7168.151118][   T73]      netdev_get_by_index+0x5e/0x80
[ 7168.151118][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7168.151118][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7168.151118][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7168.151118][   T73]      ipv6_add_addr+0x411/0x2000
[ 7168.151118][   T73]      inet6_addr_add+0x30e/0xa40
[ 7168.151118][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7168.151118][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7168.151118][   T73]      netlink_rcv_skb+0x130/0x360
[ 7168.151118][   T73]      netlink_unicast+0x449/0x710
[ 7168.151118][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7168.151118][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7168.151118][   T73]      ___sys_sendmsg+0xee/0x170
[ 7168.151118][   T73]      __sys_sendmsg+0xcd/0x170
[ 7168.151118][   T73]      do_syscall_64+0xc6/0x1e0
[ 7168.151118][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7168.151118][   T73] 
[ 7168.153388][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7168.153388][   T73]      netdev_get_by_index+0x5e/0x80
[ 7168.153388][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7168.153388][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7168.153388][   T73]      ip6_route_add+0x1c/0x140
[ 7168.153388][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7168.153388][   T73]      addrconf_add_dev+0xe2/0x170
[ 7168.153388][   T73]      inet6_addr_add+0x12f/0xa40
[ 7168.153388][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7168.153388][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7168.153388][   T73]      netlink_rcv_skb+0x130/0x360
[ 7168.153388][   T73]      netlink_unicast+0x449/0x710
[ 7168.153388][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7168.153388][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7168.153388][   T73]      ___sys_sendmsg+0xee/0x170
[ 7168.153388][   T73]      __sys_sendmsg+0xcd/0x170
[ 7168.153388][   T73]      do_syscall_64+0xc6/0x1e0
[ 7168.153388][   T73] 
[ 7168.155555][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7168.155555][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7168.155555][   T73]      ipv6_find_idev+0x102/0x170
[ 7168.155555][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7168.155555][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7168.155555][   T73]      netlink_rcv_skb+0x130/0x360
[ 7168.155555][   T73]      netlink_unicast+0x449/0x710
[ 7168.155555][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7168.155555][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7168.155555][   T73]      ___sys_sendmsg+0xee/0x170
[ 7168.155555][   T73]      __sys_sendmsg+0xcd/0x170
[ 7168.155555][   T73]      do_syscall_64+0xc6/0x1e0
[ 7168.155555][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7168.155555][   T73] 
[ 7168.157290][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7168.157290][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7168.157290][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7168.157290][   T73]      ipv6_find_idev+0x102/0x170
[ 7168.157290][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7168.157290][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7168.157290][   T73]      netlink_rcv_skb+0x130/0x360
[ 7168.157290][   T73]      netlink_unicast+0x449/0x710
[ 7168.157290][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7168.157290][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7168.157290][   T73]      ___sys_sendmsg+0xee/0x170
[ 7168.157290][   T73]      __sys_sendmsg+0xcd/0x170
[ 7168.157290][   T73]      do_syscall_64+0xc6/0x1e0
[ 7168.157290][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7168.157290][   T73] 
[ 7168.159280][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 7168.159548][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7168.159548][   T73]      netdev_get_by_index+0x5e/0x80
[ 7168.159548][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7168.159548][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7168.159548][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 7168.159548][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 7168.159548][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 7168.159548][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 7168.159548][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 7168.159548][   T73]      addrconf_dad_begin+0x310/0x670
[ 7168.159548][   T73]      addrconf_dad_work+0x10b/0xab0
[ 7168.159548][   T73]      process_one_work+0x84d/0x18a0
[ 7168.159548][   T73]      worker_thread+0x587/0xd30
[ 7168.159548][   T73]      kthread+0x28a/0x350
[ 7168.159548][   T73]      ret_from_fork+0x31/0x70
[ 7168.159548][   T73]      ret_from_fork_asm+0x1a/0x30
[ 7168.159548][   T73] 
[ 7168.161772][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7168.161772][   T73]      netdev_get_by_index+0x5e/0x80
[ 7168.161772][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7168.161772][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7168.161772][   T73]      ip6_route_add+0x1c/0x140
[ 7168.161772][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7168.161772][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7168.161772][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7168.161772][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7168.161772][   T73]      netlink_rcv_skb+0x130/0x360
[ 7168.161772][   T73]      netlink_unicast+0x449/0x710
[ 7168.161772][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7168.161772][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7168.161772][   T73]      ___sys_sendmsg+0xee/0x170
[ 7168.161772][   T73]      __sys_sendmsg+0xcd/0x170
[ 7168.161772][   T73]      do_syscall_64+0xc6/0x1e0
[ 7168.161772][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7168.161772][   T73] 
[ 7168.163969][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7168.163969][   T73]      netdev_get_by_index+0x5e/0x80
[ 7168.163969][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7168.163969][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7168.163969][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7168.163969][   T73]      ipv6_add_addr+0x411/0x2000
[ 7168.163969][   T73]      inet6_addr_add+0x30e/0xa40
[ 7168.163969][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7168.163969][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7168.163969][   T73]      netlink_rcv_skb+0x130/0x360
[ 7168.163969][   T73]      netlink_unicast+0x449/0x710
[ 7168.163969][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7168.163969][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7168.163969][   T73]      ___sys_sendmsg+0xee/0x170
[ 7168.163969][   T73]      __sys_sendmsg+0xcd/0x170
[ 7168.163969][   T73]      do_syscall_64+0xc6/0x1e0
[ 7168.163969][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7168.163969][   T73] 
[ 7168.166219][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7168.166219][   T73]      netdev_get_by_index+0x5e/0x80
[ 7168.166219][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7168.166219][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7168.166219][   T73]      ip6_route_add+0x1c/0x140
[ 7168.166219][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7168.166219][   T73]      addrconf_add_dev+0xe2/0x170
[ 7168.166219][   T73]      inet6_addr_add+0x12f/0xa40
[ 7168.166219][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7168.166219][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7168.166219][   T73]      netlink_rcv_skb+0x130/0x360
[ 7168.166219][   T73]      netlink_unicast+0x449/0x710
[ 7168.166219][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7168.166219][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7168.166219][   T73]      ___sys_sendmsg+0xee/0x170
[ 7168.166219][   T73]      __sys_sendmsg+0xcd/0x170
[ 7168.166219][   T73]      do_syscall_64+0xc6/0x1e0
[ 7168.166219][   T73] 
[ 7168.168506][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7168.168506][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7168.168506][   T73]      ipv6_find_idev+0x102/0x170
[ 7168.168506][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7168.168506][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7168.168506][   T73]      netlink_rcv_skb+0x130/0x360
[ 7168.168506][   T73]      netlink_unicast+0x449/0x710
[ 7168.168506][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7168.168506][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7168.168506][   T73]      ___sys_sendmsg+0xee/0x170
[ 7168.168506][   T73]      __sys_sendmsg+0xcd/0x170
[ 7168.168506][   T73]      do_syscall_64+0xc6/0x1e0
[ 7168.168506][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7168.168506][   T73] 
[ 7168.170237][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7168.170237][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7168.170237][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7168.170237][   T73]      ipv6_find_idev+0x102/0x170
[ 7168.170237][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7168.170237][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7168.170237][   T73]      netlink_rcv_skb+0x130/0x360
[ 7168.170237][   T73]      netlink_unicast+0x449/0x710
[ 7168.170237][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7168.170237][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7168.170237][   T73]      ___sys_sendmsg+0xee/0x170
[ 7168.170237][   T73]      __sys_sendmsg+0xcd/0x170
[ 7168.170237][   T73]      do_syscall_64+0xc6/0x1e0
[ 7168.170237][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7168.170237][   T73] 
[ 7178.407748][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 7178.408127][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7178.408127][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 7178.408127][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 7178.408127][   T73]      fib6_nh_init+0xa22/0x1580
[ 7178.408127][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7178.408127][   T73]      ip6_route_add+0x1c/0x140
[ 7178.408127][   T73]      inet6_rtm_newroute+0x104/0x110
[ 7178.408127][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7178.408127][   T73]      netlink_rcv_skb+0x130/0x360
[ 7178.408127][   T73]      netlink_unicast+0x449/0x710
[ 7178.408127][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7178.408127][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7178.408127][   T73]      ___sys_sendmsg+0xee/0x170
[ 7178.408127][   T73]      __sys_sendmsg+0xcd/0x170
[ 7178.408127][   T73]      do_syscall_64+0xc6/0x1e0
[ 7178.408127][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7178.408127][   T73] 
[ 7178.410061][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 7178.410061][   T73]      dst_init+0x84/0x4a0
[ 7178.410061][   T73]      dst_alloc+0x97/0x150
[ 7178.410061][   T73]      ip6_dst_alloc+0x23/0x90
[ 7178.410061][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 7178.410061][   T73]      ip6_pol_route+0x56f/0x840
[ 7178.410061][   T73]      fib6_rule_lookup+0x456/0x630
[ 7178.410061][   T73]      ip6_route_input+0x59c/0xa50
[ 7178.410061][   T73]      ipv6_rcv+0x397/0x810
[ 7178.410061][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 7178.410061][   T73]      process_backlog+0x101/0x620
[ 7178.410061][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 7178.410061][   T73]      net_rx_action+0x495/0xbe0
[ 7178.410061][   T73]      __do_softirq+0x1b5/0x7f6
[ 7178.410061][   T73] 
[ 7178.411742][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7178.411742][   T73]      netdev_get_by_index+0x5e/0x80
[ 7178.411742][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7178.411742][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7178.411742][   T73]      ip6_route_add+0x1c/0x140
[ 7178.411742][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7178.411742][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7178.411742][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7178.411742][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7178.411742][   T73]      netlink_rcv_skb+0x130/0x360
[ 7178.411742][   T73]      netlink_unicast+0x449/0x710
[ 7178.411742][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7178.411742][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7178.411742][   T73]      ___sys_sendmsg+0xee/0x170
[ 7178.411742][   T73]      __sys_sendmsg+0xcd/0x170
[ 7178.411742][   T73]      do_syscall_64+0xc6/0x1e0
[ 7178.411742][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7178.411742][   T73] 
[ 7178.413750][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7178.413750][   T73]      netdev_get_by_index+0x5e/0x80
[ 7178.413750][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7178.413750][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7178.413750][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7178.413750][   T73]      ipv6_add_addr+0x411/0x2000
[ 7178.413750][   T73]      inet6_addr_add+0x30e/0xa40
[ 7178.413750][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7178.413750][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7178.413750][   T73]      netlink_rcv_skb+0x130/0x360
[ 7178.413750][   T73]      netlink_unicast+0x449/0x710
[ 7178.413750][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7178.413750][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7178.413750][   T73]      ___sys_sendmsg+0xee/0x170
[ 7178.413750][   T73]      __sys_sendmsg+0xcd/0x170
[ 7178.413750][   T73]      do_syscall_64+0xc6/0x1e0
[ 7178.413750][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7178.413750][   T73] 
[ 7178.415761][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7178.415761][   T73]      netdev_get_by_index+0x5e/0x80
[ 7178.415761][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7178.415761][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7178.415761][   T73]      ip6_route_add+0x1c/0x140
[ 7178.415761][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7178.415761][   T73]      addrconf_add_dev+0xe2/0x170
[ 7178.415761][   T73]      inet6_addr_add+0x12f/0xa40
[ 7178.415761][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7178.415761][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7178.415761][   T73]      netlink_rcv_skb+0x130/0x360
[ 7178.415761][   T73]      netlink_unicast+0x449/0x710
[ 7178.415761][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7178.415761][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7178.415761][   T73]      ___sys_sendmsg+0xee/0x170
[ 7178.415761][   T73]      __sys_sendmsg+0xcd/0x170
[ 7178.415761][   T73]      do_syscall_64+0xc6/0x1e0
[ 7178.415761][   T73] 
[ 7178.417745][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7178.417745][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7178.417745][   T73]      ipv6_find_idev+0x102/0x170
[ 7178.417745][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7178.417745][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7178.417745][   T73]      netlink_rcv_skb+0x130/0x360
[ 7178.417745][   T73]      netlink_unicast+0x449/0x710
[ 7178.417745][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7178.417745][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7178.417745][   T73]      ___sys_sendmsg+0xee/0x170
[ 7178.417745][   T73]      __sys_sendmsg+0xcd/0x170
[ 7178.417745][   T73]      do_syscall_64+0xc6/0x1e0
[ 7178.417745][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7178.417745][   T73] 
[ 7178.419297][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7178.419297][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7178.419297][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7178.419297][   T73]      ipv6_find_idev+0x102/0x170
[ 7178.419297][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7178.419297][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7178.419297][   T73]      netlink_rcv_skb+0x130/0x360
[ 7178.419297][   T73]      netlink_unicast+0x449/0x710
[ 7178.419297][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7178.419297][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7178.419297][   T73]      ___sys_sendmsg+0xee/0x170
[ 7178.419297][   T73]      __sys_sendmsg+0xcd/0x170
[ 7178.419297][   T73]      do_syscall_64+0xc6/0x1e0
[ 7178.419297][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7178.419297][   T73] 
[ 7178.420982][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 7178.421265][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7178.421265][   T73]      netdev_get_by_index+0x5e/0x80
[ 7178.421265][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7178.421265][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7178.421265][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 7178.421265][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 7178.421265][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 7178.421265][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 7178.421265][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 7178.421265][   T73]      addrconf_dad_begin+0x310/0x670
[ 7178.421265][   T73]      addrconf_dad_work+0x10b/0xab0
[ 7178.421265][   T73]      process_one_work+0x84d/0x18a0
[ 7178.421265][   T73]      worker_thread+0x587/0xd30
[ 7178.421265][   T73]      kthread+0x28a/0x350
[ 7178.421265][   T73]      ret_from_fork+0x31/0x70
[ 7178.421265][   T73]      ret_from_fork_asm+0x1a/0x30
[ 7178.421265][   T73] 
[ 7178.423193][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7178.423193][   T73]      netdev_get_by_index+0x5e/0x80
[ 7178.423193][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7178.423193][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7178.423193][   T73]      ip6_route_add+0x1c/0x140
[ 7178.423193][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7178.423193][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7178.423193][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7178.423193][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7178.423193][   T73]      netlink_rcv_skb+0x130/0x360
[ 7178.423193][   T73]      netlink_unicast+0x449/0x710
[ 7178.423193][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7178.423193][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7178.423193][   T73]      ___sys_sendmsg+0xee/0x170
[ 7178.423193][   T73]      __sys_sendmsg+0xcd/0x170
[ 7178.423193][   T73]      do_syscall_64+0xc6/0x1e0
[ 7178.423193][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7178.423193][   T73] 
[ 7178.425208][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7178.425208][   T73]      netdev_get_by_index+0x5e/0x80
[ 7178.425208][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7178.425208][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7178.425208][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7178.425208][   T73]      ipv6_add_addr+0x411/0x2000
[ 7178.425208][   T73]      inet6_addr_add+0x30e/0xa40
[ 7178.425208][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7178.425208][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7178.425208][   T73]      netlink_rcv_skb+0x130/0x360
[ 7178.425208][   T73]      netlink_unicast+0x449/0x710
[ 7178.425208][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7178.425208][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7178.425208][   T73]      ___sys_sendmsg+0xee/0x170
[ 7178.425208][   T73]      __sys_sendmsg+0xcd/0x170
[ 7178.425208][   T73]      do_syscall_64+0xc6/0x1e0
[ 7178.425208][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7178.425208][   T73] 
[ 7178.427222][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7178.427222][   T73]      netdev_get_by_index+0x5e/0x80
[ 7178.427222][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7178.427222][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7178.427222][   T73]      ip6_route_add+0x1c/0x140
[ 7178.427222][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7178.427222][   T73]      addrconf_add_dev+0xe2/0x170
[ 7178.427222][   T73]      inet6_addr_add+0x12f/0xa40
[ 7178.427222][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7178.427222][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7178.427222][   T73]      netlink_rcv_skb+0x130/0x360
[ 7178.427222][   T73]      netlink_unicast+0x449/0x710
[ 7178.427222][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7178.427222][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7178.427222][   T73]      ___sys_sendmsg+0xee/0x170
[ 7178.427222][   T73]      __sys_sendmsg+0xcd/0x170
[ 7178.427222][   T73]      do_syscall_64+0xc6/0x1e0
[ 7178.427222][   T73] 
[ 7178.429198][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7178.429198][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7178.429198][   T73]      ipv6_find_idev+0x102/0x170
[ 7178.429198][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7178.429198][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7178.429198][   T73]      netlink_rcv_skb+0x130/0x360
[ 7178.429198][   T73]      netlink_unicast+0x449/0x710
[ 7178.429198][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7178.429198][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7178.429198][   T73]      ___sys_sendmsg+0xee/0x170
[ 7178.429198][   T73]      __sys_sendmsg+0xcd/0x170
[ 7178.429198][   T73]      do_syscall_64+0xc6/0x1e0
[ 7178.429198][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7178.429198][   T73] 
[ 7178.430743][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7178.430743][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7178.430743][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7178.430743][   T73]      ipv6_find_idev+0x102/0x170
[ 7178.430743][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7178.430743][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7178.430743][   T73]      netlink_rcv_skb+0x130/0x360
[ 7178.430743][   T73]      netlink_unicast+0x449/0x710
[ 7178.430743][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7178.430743][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7178.430743][   T73]      ___sys_sendmsg+0xee/0x170
[ 7178.430743][   T73]      __sys_sendmsg+0xcd/0x170
[ 7178.430743][   T73]      do_syscall_64+0xc6/0x1e0
[ 7178.430743][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7178.430743][   T73] 
[ 7178.432444][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 7178.432739][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7178.432739][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 7178.432739][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 7178.432739][   T73]      fib6_nh_init+0xa22/0x1580
[ 7178.432739][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7178.432739][   T73]      ip6_route_add+0x1c/0x140
[ 7178.432739][   T73]      inet6_rtm_newroute+0x104/0x110
[ 7178.432739][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7178.432739][   T73]      netlink_rcv_skb+0x130/0x360
[ 7178.432739][   T73]      netlink_unicast+0x449/0x710
[ 7178.432739][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7178.432739][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7178.432739][   T73]      ___sys_sendmsg+0xee/0x170
[ 7178.432739][   T73]      __sys_sendmsg+0xcd/0x170
[ 7178.432739][   T73]      do_syscall_64+0xc6/0x1e0
[ 7178.432739][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7178.432739][   T73] 
[ 7178.434818][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 7178.434818][   T73]      dst_init+0x84/0x4a0
[ 7178.434818][   T73]      dst_alloc+0x97/0x150
[ 7178.434818][   T73]      ip6_dst_alloc+0x23/0x90
[ 7178.434818][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 7178.434818][   T73]      ip6_pol_route+0x56f/0x840
[ 7178.434818][   T73]      fib6_rule_lookup+0x456/0x630
[ 7178.434818][   T73]      ip6_route_input+0x59c/0xa50
[ 7178.434818][   T73]      ipv6_rcv+0x397/0x810
[ 7178.434818][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 7178.434818][   T73]      process_backlog+0x101/0x620
[ 7178.434818][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 7178.434818][   T73]      net_rx_action+0x495/0xbe0
[ 7178.434818][   T73]      __do_softirq+0x1b5/0x7f6
[ 7178.434818][   T73] 
[ 7178.436644][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7178.436644][   T73]      netdev_get_by_index+0x5e/0x80
[ 7178.436644][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7178.436644][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7178.436644][   T73]      ip6_route_add+0x1c/0x140
[ 7178.436644][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7178.436644][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7178.436644][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7178.436644][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7178.436644][   T73]      netlink_rcv_skb+0x130/0x360
[ 7178.436644][   T73]      netlink_unicast+0x449/0x710
[ 7178.436644][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7178.436644][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7178.436644][   T73]      ___sys_sendmsg+0xee/0x170
[ 7178.436644][   T73]      __sys_sendmsg+0xcd/0x170
[ 7178.436644][   T73]      do_syscall_64+0xc6/0x1e0
[ 7178.436644][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7178.436644][   T73] 
[ 7178.438912][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7178.438912][   T73]      netdev_get_by_index+0x5e/0x80
[ 7178.438912][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7178.438912][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7178.438912][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7178.438912][   T73]      ipv6_add_addr+0x411/0x2000
[ 7178.438912][   T73]      inet6_addr_add+0x30e/0xa40
[ 7178.438912][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7178.438912][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7178.438912][   T73]      netlink_rcv_skb+0x130/0x360
[ 7178.438912][   T73]      netlink_unicast+0x449/0x710
[ 7178.438912][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7178.438912][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7178.438912][   T73]      ___sys_sendmsg+0xee/0x170
[ 7178.438912][   T73]      __sys_sendmsg+0xcd/0x170
[ 7178.438912][   T73]      do_syscall_64+0xc6/0x1e0
[ 7178.438912][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7178.438912][   T73] 
[ 7178.441248][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7178.441248][   T73]      netdev_get_by_index+0x5e/0x80
[ 7178.441248][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7178.441248][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7178.441248][   T73]      ip6_route_add+0x1c/0x140
[ 7178.441248][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7178.441248][   T73]      addrconf_add_dev+0xe2/0x170
[ 7178.441248][   T73]      inet6_addr_add+0x12f/0xa40
[ 7178.441248][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7178.441248][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7178.441248][   T73]      netlink_rcv_skb+0x130/0x360
[ 7178.441248][   T73]      netlink_unicast+0x449/0x710
[ 7178.441248][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7178.441248][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7178.441248][   T73]      ___sys_sendmsg+0xee/0x170
[ 7178.441248][   T73]      __sys_sendmsg+0xcd/0x170
[ 7178.441248][   T73]      do_syscall_64+0xc6/0x1e0
[ 7178.441248][   T73] 
[ 7178.443404][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7178.443404][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7178.443404][   T73]      ipv6_find_idev+0x102/0x170
[ 7178.443404][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7178.443404][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7178.443404][   T73]      netlink_rcv_skb+0x130/0x360
[ 7178.443404][   T73]      netlink_unicast+0x449/0x710
[ 7178.443404][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7178.443404][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7178.443404][   T73]      ___sys_sendmsg+0xee/0x170
[ 7178.443404][   T73]      __sys_sendmsg+0xcd/0x170
[ 7178.443404][   T73]      do_syscall_64+0xc6/0x1e0
[ 7178.443404][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7178.443404][   T73] 
[ 7178.445138][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7178.445138][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7178.445138][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7178.445138][   T73]      ipv6_find_idev+0x102/0x170
[ 7178.445138][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7178.445138][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7178.445138][   T73]      netlink_rcv_skb+0x130/0x360
[ 7178.445138][   T73]      netlink_unicast+0x449/0x710
[ 7178.445138][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7178.445138][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7178.445138][   T73]      ___sys_sendmsg+0xee/0x170
[ 7178.445138][   T73]      __sys_sendmsg+0xcd/0x170
[ 7178.445138][   T73]      do_syscall_64+0xc6/0x1e0
[ 7178.445138][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7178.445138][   T73] 
[ 7178.447076][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 7178.447376][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7178.447376][   T73]      netdev_get_by_index+0x5e/0x80
[ 7178.447376][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7178.447376][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7178.447376][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 7178.447376][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 7178.447376][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 7178.447376][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 7178.447376][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 7178.447376][   T73]      addrconf_dad_begin+0x310/0x670
[ 7178.447376][   T73]      addrconf_dad_work+0x10b/0xab0
[ 7178.447376][   T73]      process_one_work+0x84d/0x18a0
[ 7178.447376][   T73]      worker_thread+0x587/0xd30
[ 7178.447376][   T73]      kthread+0x28a/0x350
[ 7178.447376][   T73]      ret_from_fork+0x31/0x70
[ 7178.447376][   T73]      ret_from_fork_asm+0x1a/0x30
[ 7178.447376][   T73] 
[ 7178.449495][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7178.449495][   T73]      netdev_get_by_index+0x5e/0x80
[ 7178.449495][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7178.449495][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7178.449495][   T73]      ip6_route_add+0x1c/0x140
[ 7178.449495][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7178.449495][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7178.449495][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7178.449495][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7178.449495][   T73]      netlink_rcv_skb+0x130/0x360
[ 7178.449495][   T73]      netlink_unicast+0x449/0x710
[ 7178.449495][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7178.449495][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7178.449495][   T73]      ___sys_sendmsg+0xee/0x170
[ 7178.449495][   T73]      __sys_sendmsg+0xcd/0x170
[ 7178.449495][   T73]      do_syscall_64+0xc6/0x1e0
[ 7178.449495][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7178.449495][   T73] 
[ 7178.451767][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7178.451767][   T73]      netdev_get_by_index+0x5e/0x80
[ 7178.451767][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7178.451767][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7178.451767][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7178.451767][   T73]      ipv6_add_addr+0x411/0x2000
[ 7178.451767][   T73]      inet6_addr_add+0x30e/0xa40
[ 7178.451767][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7178.451767][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7178.451767][   T73]      netlink_rcv_skb+0x130/0x360
[ 7178.451767][   T73]      netlink_unicast+0x449/0x710
[ 7178.451767][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7178.451767][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7178.451767][   T73]      ___sys_sendmsg+0xee/0x170
[ 7178.451767][   T73]      __sys_sendmsg+0xcd/0x170
[ 7178.451767][   T73]      do_syscall_64+0xc6/0x1e0
[ 7178.451767][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7178.451767][   T73] 
[ 7178.454020][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7178.454020][   T73]      netdev_get_by_index+0x5e/0x80
[ 7178.454020][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7178.454020][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7178.454020][   T73]      ip6_route_add+0x1c/0x140
[ 7178.454020][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7178.454020][   T73]      addrconf_add_dev+0xe2/0x170
[ 7178.454020][   T73]      inet6_addr_add+0x12f/0xa40
[ 7178.454020][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7178.454020][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7178.454020][   T73]      netlink_rcv_skb+0x130/0x360
[ 7178.454020][   T73]      netlink_unicast+0x449/0x710
[ 7178.454020][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7178.454020][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7178.454020][   T73]      ___sys_sendmsg+0xee/0x170
[ 7178.454020][   T73]      __sys_sendmsg+0xcd/0x170
[ 7178.454020][   T73]      do_syscall_64+0xc6/0x1e0
[ 7178.454020][   T73] 
[ 7178.456260][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7178.456260][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7178.456260][   T73]      ipv6_find_idev+0x102/0x170
[ 7178.456260][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7178.456260][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7178.456260][   T73]      netlink_rcv_skb+0x130/0x360
[ 7178.456260][   T73]      netlink_unicast+0x449/0x710
[ 7178.456260][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7178.456260][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7178.456260][   T73]      ___sys_sendmsg+0xee/0x170
[ 7178.456260][   T73]      __sys_sendmsg+0xcd/0x170
[ 7178.456260][   T73]      do_syscall_64+0xc6/0x1e0
[ 7178.456260][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7178.456260][   T73] 
[ 7178.457996][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7178.457996][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7178.457996][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7178.457996][   T73]      ipv6_find_idev+0x102/0x170
[ 7178.457996][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7178.457996][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7178.457996][   T73]      netlink_rcv_skb+0x130/0x360
[ 7178.457996][   T73]      netlink_unicast+0x449/0x710
[ 7178.457996][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7178.457996][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7178.457996][   T73]      ___sys_sendmsg+0xee/0x170
[ 7178.457996][   T73]      __sys_sendmsg+0xcd/0x170
[ 7178.457996][   T73]      do_syscall_64+0xc6/0x1e0
[ 7178.457996][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7178.457996][   T73] 
[ 7188.695775][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 7188.696262][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7188.696262][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 7188.696262][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 7188.696262][   T73]      fib6_nh_init+0xa22/0x1580
[ 7188.696262][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7188.696262][   T73]      ip6_route_add+0x1c/0x140
[ 7188.696262][   T73]      inet6_rtm_newroute+0x104/0x110
[ 7188.696262][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7188.696262][   T73]      netlink_rcv_skb+0x130/0x360
[ 7188.696262][   T73]      netlink_unicast+0x449/0x710
[ 7188.696262][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7188.696262][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7188.696262][   T73]      ___sys_sendmsg+0xee/0x170
[ 7188.696262][   T73]      __sys_sendmsg+0xcd/0x170
[ 7188.696262][   T73]      do_syscall_64+0xc6/0x1e0
[ 7188.696262][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7188.696262][   T73] 
[ 7188.698164][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 7188.698164][   T73]      dst_init+0x84/0x4a0
[ 7188.698164][   T73]      dst_alloc+0x97/0x150
[ 7188.698164][   T73]      ip6_dst_alloc+0x23/0x90
[ 7188.698164][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 7188.698164][   T73]      ip6_pol_route+0x56f/0x840
[ 7188.698164][   T73]      fib6_rule_lookup+0x456/0x630
[ 7188.698164][   T73]      ip6_route_input+0x59c/0xa50
[ 7188.698164][   T73]      ipv6_rcv+0x397/0x810
[ 7188.698164][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 7188.698164][   T73]      process_backlog+0x101/0x620
[ 7188.698164][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 7188.698164][   T73]      net_rx_action+0x495/0xbe0
[ 7188.698164][   T73]      __do_softirq+0x1b5/0x7f6
[ 7188.698164][   T73] 
[ 7188.699818][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7188.699818][   T73]      netdev_get_by_index+0x5e/0x80
[ 7188.699818][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7188.699818][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7188.699818][   T73]      ip6_route_add+0x1c/0x140
[ 7188.699818][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7188.699818][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7188.699818][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7188.699818][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7188.699818][   T73]      netlink_rcv_skb+0x130/0x360
[ 7188.699818][   T73]      netlink_unicast+0x449/0x710
[ 7188.699818][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7188.699818][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7188.699818][   T73]      ___sys_sendmsg+0xee/0x170
[ 7188.699818][   T73]      __sys_sendmsg+0xcd/0x170
[ 7188.699818][   T73]      do_syscall_64+0xc6/0x1e0
[ 7188.699818][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7188.699818][   T73] 
[ 7188.701859][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7188.701859][   T73]      netdev_get_by_index+0x5e/0x80
[ 7188.701859][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7188.701859][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7188.701859][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7188.701859][   T73]      ipv6_add_addr+0x411/0x2000
[ 7188.701859][   T73]      inet6_addr_add+0x30e/0xa40
[ 7188.701859][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7188.701859][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7188.701859][   T73]      netlink_rcv_skb+0x130/0x360
[ 7188.701859][   T73]      netlink_unicast+0x449/0x710
[ 7188.701859][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7188.701859][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7188.701859][   T73]      ___sys_sendmsg+0xee/0x170
[ 7188.701859][   T73]      __sys_sendmsg+0xcd/0x170
[ 7188.701859][   T73]      do_syscall_64+0xc6/0x1e0
[ 7188.701859][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7188.701859][   T73] 
[ 7188.703865][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7188.703865][   T73]      netdev_get_by_index+0x5e/0x80
[ 7188.703865][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7188.703865][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7188.703865][   T73]      ip6_route_add+0x1c/0x140
[ 7188.703865][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7188.703865][   T73]      addrconf_add_dev+0xe2/0x170
[ 7188.703865][   T73]      inet6_addr_add+0x12f/0xa40
[ 7188.703865][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7188.703865][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7188.703865][   T73]      netlink_rcv_skb+0x130/0x360
[ 7188.703865][   T73]      netlink_unicast+0x449/0x710
[ 7188.703865][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7188.703865][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7188.703865][   T73]      ___sys_sendmsg+0xee/0x170
[ 7188.703865][   T73]      __sys_sendmsg+0xcd/0x170
[ 7188.703865][   T73]      do_syscall_64+0xc6/0x1e0
[ 7188.703865][   T73] 
[ 7188.705854][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7188.705854][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7188.705854][   T73]      ipv6_find_idev+0x102/0x170
[ 7188.705854][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7188.705854][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7188.705854][   T73]      netlink_rcv_skb+0x130/0x360
[ 7188.705854][   T73]      netlink_unicast+0x449/0x710
[ 7188.705854][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7188.705854][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7188.705854][   T73]      ___sys_sendmsg+0xee/0x170
[ 7188.705854][   T73]      __sys_sendmsg+0xcd/0x170
[ 7188.705854][   T73]      do_syscall_64+0xc6/0x1e0
[ 7188.705854][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7188.705854][   T73] 
[ 7188.707402][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7188.707402][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7188.707402][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7188.707402][   T73]      ipv6_find_idev+0x102/0x170
[ 7188.707402][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7188.707402][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7188.707402][   T73]      netlink_rcv_skb+0x130/0x360
[ 7188.707402][   T73]      netlink_unicast+0x449/0x710
[ 7188.707402][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7188.707402][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7188.707402][   T73]      ___sys_sendmsg+0xee/0x170
[ 7188.707402][   T73]      __sys_sendmsg+0xcd/0x170
[ 7188.707402][   T73]      do_syscall_64+0xc6/0x1e0
[ 7188.707402][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7188.707402][   T73] 
[ 7188.709090][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 7188.709359][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7188.709359][   T73]      netdev_get_by_index+0x5e/0x80
[ 7188.709359][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7188.709359][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7188.709359][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 7188.709359][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 7188.709359][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 7188.709359][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 7188.709359][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 7188.709359][   T73]      addrconf_dad_begin+0x310/0x670
[ 7188.709359][   T73]      addrconf_dad_work+0x10b/0xab0
[ 7188.709359][   T73]      process_one_work+0x84d/0x18a0
[ 7188.709359][   T73]      worker_thread+0x587/0xd30
[ 7188.709359][   T73]      kthread+0x28a/0x350
[ 7188.709359][   T73]      ret_from_fork+0x31/0x70
[ 7188.709359][   T73]      ret_from_fork_asm+0x1a/0x30
[ 7188.709359][   T73] 
[ 7188.711293][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7188.711293][   T73]      netdev_get_by_index+0x5e/0x80
[ 7188.711293][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7188.711293][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7188.711293][   T73]      ip6_route_add+0x1c/0x140
[ 7188.711293][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7188.711293][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7188.711293][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7188.711293][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7188.711293][   T73]      netlink_rcv_skb+0x130/0x360
[ 7188.711293][   T73]      netlink_unicast+0x449/0x710
[ 7188.711293][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7188.711293][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7188.711293][   T73]      ___sys_sendmsg+0xee/0x170
[ 7188.711293][   T73]      __sys_sendmsg+0xcd/0x170
[ 7188.711293][   T73]      do_syscall_64+0xc6/0x1e0
[ 7188.711293][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7188.711293][   T73] 
[ 7188.713292][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7188.713292][   T73]      netdev_get_by_index+0x5e/0x80
[ 7188.713292][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7188.713292][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7188.713292][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7188.713292][   T73]      ipv6_add_addr+0x411/0x2000
[ 7188.713292][   T73]      inet6_addr_add+0x30e/0xa40
[ 7188.713292][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7188.713292][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7188.713292][   T73]      netlink_rcv_skb+0x130/0x360
[ 7188.713292][   T73]      netlink_unicast+0x449/0x710
[ 7188.713292][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7188.713292][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7188.713292][   T73]      ___sys_sendmsg+0xee/0x170
[ 7188.713292][   T73]      __sys_sendmsg+0xcd/0x170
[ 7188.713292][   T73]      do_syscall_64+0xc6/0x1e0
[ 7188.713292][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7188.713292][   T73] 
[ 7188.715313][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7188.715313][   T73]      netdev_get_by_index+0x5e/0x80
[ 7188.715313][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7188.715313][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7188.715313][   T73]      ip6_route_add+0x1c/0x140
[ 7188.715313][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7188.715313][   T73]      addrconf_add_dev+0xe2/0x170
[ 7188.715313][   T73]      inet6_addr_add+0x12f/0xa40
[ 7188.715313][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7188.715313][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7188.715313][   T73]      netlink_rcv_skb+0x130/0x360
[ 7188.715313][   T73]      netlink_unicast+0x449/0x710
[ 7188.715313][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7188.715313][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7188.715313][   T73]      ___sys_sendmsg+0xee/0x170
[ 7188.715313][   T73]      __sys_sendmsg+0xcd/0x170
[ 7188.715313][   T73]      do_syscall_64+0xc6/0x1e0
[ 7188.715313][   T73] 
[ 7188.717279][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7188.717279][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7188.717279][   T73]      ipv6_find_idev+0x102/0x170
[ 7188.717279][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7188.717279][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7188.717279][   T73]      netlink_rcv_skb+0x130/0x360
[ 7188.717279][   T73]      netlink_unicast+0x449/0x710
[ 7188.717279][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7188.717279][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7188.717279][   T73]      ___sys_sendmsg+0xee/0x170
[ 7188.717279][   T73]      __sys_sendmsg+0xcd/0x170
[ 7188.717279][   T73]      do_syscall_64+0xc6/0x1e0
[ 7188.717279][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7188.717279][   T73] 
[ 7188.718824][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7188.718824][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7188.718824][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7188.718824][   T73]      ipv6_find_idev+0x102/0x170
[ 7188.718824][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7188.718824][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7188.718824][   T73]      netlink_rcv_skb+0x130/0x360
[ 7188.718824][   T73]      netlink_unicast+0x449/0x710
[ 7188.718824][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7188.718824][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7188.718824][   T73]      ___sys_sendmsg+0xee/0x170
[ 7188.718824][   T73]      __sys_sendmsg+0xcd/0x170
[ 7188.718824][   T73]      do_syscall_64+0xc6/0x1e0
[ 7188.718824][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7188.718824][   T73] 
[ 7188.720529][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 7188.720811][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7188.720811][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 7188.720811][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 7188.720811][   T73]      fib6_nh_init+0xa22/0x1580
[ 7188.720811][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7188.720811][   T73]      ip6_route_add+0x1c/0x140
[ 7188.720811][   T73]      inet6_rtm_newroute+0x104/0x110
[ 7188.720811][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7188.720811][   T73]      netlink_rcv_skb+0x130/0x360
[ 7188.720811][   T73]      netlink_unicast+0x449/0x710
[ 7188.720811][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7188.720811][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7188.720811][   T73]      ___sys_sendmsg+0xee/0x170
[ 7188.720811][   T73]      __sys_sendmsg+0xcd/0x170
[ 7188.720811][   T73]      do_syscall_64+0xc6/0x1e0
[ 7188.720811][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7188.720811][   T73] 
[ 7188.722895][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 7188.722895][   T73]      dst_init+0x84/0x4a0
[ 7188.722895][   T73]      dst_alloc+0x97/0x150
[ 7188.722895][   T73]      ip6_dst_alloc+0x23/0x90
[ 7188.722895][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 7188.722895][   T73]      ip6_pol_route+0x56f/0x840
[ 7188.722895][   T73]      fib6_rule_lookup+0x456/0x630
[ 7188.722895][   T73]      ip6_route_input+0x59c/0xa50
[ 7188.722895][   T73]      ipv6_rcv+0x397/0x810
[ 7188.722895][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 7188.722895][   T73]      process_backlog+0x101/0x620
[ 7188.722895][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 7188.722895][   T73]      net_rx_action+0x495/0xbe0
[ 7188.722895][   T73]      __do_softirq+0x1b5/0x7f6
[ 7188.722895][   T73] 
[ 7188.724743][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7188.724743][   T73]      netdev_get_by_index+0x5e/0x80
[ 7188.724743][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7188.724743][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7188.724743][   T73]      ip6_route_add+0x1c/0x140
[ 7188.724743][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7188.724743][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7188.724743][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7188.724743][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7188.724743][   T73]      netlink_rcv_skb+0x130/0x360
[ 7188.724743][   T73]      netlink_unicast+0x449/0x710
[ 7188.724743][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7188.724743][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7188.724743][   T73]      ___sys_sendmsg+0xee/0x170
[ 7188.724743][   T73]      __sys_sendmsg+0xcd/0x170
[ 7188.724743][   T73]      do_syscall_64+0xc6/0x1e0
[ 7188.724743][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7188.724743][   T73] 
[ 7188.727061][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7188.727061][   T73]      netdev_get_by_index+0x5e/0x80
[ 7188.727061][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7188.727061][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7188.727061][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7188.727061][   T73]      ipv6_add_addr+0x411/0x2000
[ 7188.727061][   T73]      inet6_addr_add+0x30e/0xa40
[ 7188.727061][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7188.727061][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7188.727061][   T73]      netlink_rcv_skb+0x130/0x360
[ 7188.727061][   T73]      netlink_unicast+0x449/0x710
[ 7188.727061][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7188.727061][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7188.727061][   T73]      ___sys_sendmsg+0xee/0x170
[ 7188.727061][   T73]      __sys_sendmsg+0xcd/0x170
[ 7188.727061][   T73]      do_syscall_64+0xc6/0x1e0
[ 7188.727061][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7188.727061][   T73] 
[ 7188.729271][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7188.729271][   T73]      netdev_get_by_index+0x5e/0x80
[ 7188.729271][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7188.729271][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7188.729271][   T73]      ip6_route_add+0x1c/0x140
[ 7188.729271][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7188.729271][   T73]      addrconf_add_dev+0xe2/0x170
[ 7188.729271][   T73]      inet6_addr_add+0x12f/0xa40
[ 7188.729271][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7188.729271][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7188.729271][   T73]      netlink_rcv_skb+0x130/0x360
[ 7188.729271][   T73]      netlink_unicast+0x449/0x710
[ 7188.729271][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7188.729271][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7188.729271][   T73]      ___sys_sendmsg+0xee/0x170
[ 7188.729271][   T73]      __sys_sendmsg+0xcd/0x170
[ 7188.729271][   T73]      do_syscall_64+0xc6/0x1e0
[ 7188.729271][   T73] 
[ 7188.731497][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7188.731497][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7188.731497][   T73]      ipv6_find_idev+0x102/0x170
[ 7188.731497][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7188.731497][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7188.731497][   T73]      netlink_rcv_skb+0x130/0x360
[ 7188.731497][   T73]      netlink_unicast+0x449/0x710
[ 7188.731497][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7188.731497][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7188.731497][   T73]      ___sys_sendmsg+0xee/0x170
[ 7188.731497][   T73]      __sys_sendmsg+0xcd/0x170
[ 7188.731497][   T73]      do_syscall_64+0xc6/0x1e0
[ 7188.731497][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7188.731497][   T73] 
[ 7188.733232][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7188.733232][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7188.733232][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7188.733232][   T73]      ipv6_find_idev+0x102/0x170
[ 7188.733232][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7188.733232][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7188.733232][   T73]      netlink_rcv_skb+0x130/0x360
[ 7188.733232][   T73]      netlink_unicast+0x449/0x710
[ 7188.733232][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7188.733232][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7188.733232][   T73]      ___sys_sendmsg+0xee/0x170
[ 7188.733232][   T73]      __sys_sendmsg+0xcd/0x170
[ 7188.733232][   T73]      do_syscall_64+0xc6/0x1e0
[ 7188.733232][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7188.733232][   T73] 
[ 7188.735233][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 7188.735515][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7188.735515][   T73]      netdev_get_by_index+0x5e/0x80
[ 7188.735515][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7188.735515][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7188.735515][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 7188.735515][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 7188.735515][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 7188.735515][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 7188.735515][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 7188.735515][   T73]      addrconf_dad_begin+0x310/0x670
[ 7188.735515][   T73]      addrconf_dad_work+0x10b/0xab0
[ 7188.735515][   T73]      process_one_work+0x84d/0x18a0
[ 7188.735515][   T73]      worker_thread+0x587/0xd30
[ 7188.735515][   T73]      kthread+0x28a/0x350
[ 7188.735515][   T73]      ret_from_fork+0x31/0x70
[ 7188.735515][   T73]      ret_from_fork_asm+0x1a/0x30
[ 7188.735515][   T73] 
[ 7188.737682][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7188.737682][   T73]      netdev_get_by_index+0x5e/0x80
[ 7188.737682][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7188.737682][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7188.737682][   T73]      ip6_route_add+0x1c/0x140
[ 7188.737682][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7188.737682][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7188.737682][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7188.737682][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7188.737682][   T73]      netlink_rcv_skb+0x130/0x360
[ 7188.737682][   T73]      netlink_unicast+0x449/0x710
[ 7188.737682][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7188.737682][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7188.737682][   T73]      ___sys_sendmsg+0xee/0x170
[ 7188.737682][   T73]      __sys_sendmsg+0xcd/0x170
[ 7188.737682][   T73]      do_syscall_64+0xc6/0x1e0
[ 7188.737682][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7188.737682][   T73] 
[ 7188.739886][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7188.739886][   T73]      netdev_get_by_index+0x5e/0x80
[ 7188.739886][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7188.739886][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7188.739886][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7188.739886][   T73]      ipv6_add_addr+0x411/0x2000
[ 7188.739886][   T73]      inet6_addr_add+0x30e/0xa40
[ 7188.739886][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7188.739886][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7188.739886][   T73]      netlink_rcv_skb+0x130/0x360
[ 7188.739886][   T73]      netlink_unicast+0x449/0x710
[ 7188.739886][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7188.739886][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7188.739886][   T73]      ___sys_sendmsg+0xee/0x170
[ 7188.739886][   T73]      __sys_sendmsg+0xcd/0x170
[ 7188.739886][   T73]      do_syscall_64+0xc6/0x1e0
[ 7188.739886][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7188.739886][   T73] 
[ 7188.742147][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7188.742147][   T73]      netdev_get_by_index+0x5e/0x80
[ 7188.742147][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7188.742147][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7188.742147][   T73]      ip6_route_add+0x1c/0x140
[ 7188.742147][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7188.742147][   T73]      addrconf_add_dev+0xe2/0x170
[ 7188.742147][   T73]      inet6_addr_add+0x12f/0xa40
[ 7188.742147][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7188.742147][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7188.742147][   T73]      netlink_rcv_skb+0x130/0x360
[ 7188.742147][   T73]      netlink_unicast+0x449/0x710
[ 7188.742147][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7188.742147][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7188.742147][   T73]      ___sys_sendmsg+0xee/0x170
[ 7188.742147][   T73]      __sys_sendmsg+0xcd/0x170
[ 7188.742147][   T73]      do_syscall_64+0xc6/0x1e0
[ 7188.742147][   T73] 
[ 7188.744435][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7188.744435][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7188.744435][   T73]      ipv6_find_idev+0x102/0x170
[ 7188.744435][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7188.744435][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7188.744435][   T73]      netlink_rcv_skb+0x130/0x360
[ 7188.744435][   T73]      netlink_unicast+0x449/0x710
[ 7188.744435][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7188.744435][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7188.744435][   T73]      ___sys_sendmsg+0xee/0x170
[ 7188.744435][   T73]      __sys_sendmsg+0xcd/0x170
[ 7188.744435][   T73]      do_syscall_64+0xc6/0x1e0
[ 7188.744435][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7188.744435][   T73] 
[ 7188.746184][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7188.746184][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7188.746184][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7188.746184][   T73]      ipv6_find_idev+0x102/0x170
[ 7188.746184][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7188.746184][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7188.746184][   T73]      netlink_rcv_skb+0x130/0x360
[ 7188.746184][   T73]      netlink_unicast+0x449/0x710
[ 7188.746184][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7188.746184][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7188.746184][   T73]      ___sys_sendmsg+0xee/0x170
[ 7188.746184][   T73]      __sys_sendmsg+0xcd/0x170
[ 7188.746184][   T73]      do_syscall_64+0xc6/0x1e0
[ 7188.746184][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7188.746184][   T73] 
[ 7198.887743][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 7198.888218][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7198.888218][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 7198.888218][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 7198.888218][   T73]      fib6_nh_init+0xa22/0x1580
[ 7198.888218][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7198.888218][   T73]      ip6_route_add+0x1c/0x140
[ 7198.888218][   T73]      inet6_rtm_newroute+0x104/0x110
[ 7198.888218][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7198.888218][   T73]      netlink_rcv_skb+0x130/0x360
[ 7198.888218][   T73]      netlink_unicast+0x449/0x710
[ 7198.888218][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7198.888218][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7198.888218][   T73]      ___sys_sendmsg+0xee/0x170
[ 7198.888218][   T73]      __sys_sendmsg+0xcd/0x170
[ 7198.888218][   T73]      do_syscall_64+0xc6/0x1e0
[ 7198.888218][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7198.888218][   T73] 
[ 7198.890125][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 7198.890125][   T73]      dst_init+0x84/0x4a0
[ 7198.890125][   T73]      dst_alloc+0x97/0x150
[ 7198.890125][   T73]      ip6_dst_alloc+0x23/0x90
[ 7198.890125][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 7198.890125][   T73]      ip6_pol_route+0x56f/0x840
[ 7198.890125][   T73]      fib6_rule_lookup+0x456/0x630
[ 7198.890125][   T73]      ip6_route_input+0x59c/0xa50
[ 7198.890125][   T73]      ipv6_rcv+0x397/0x810
[ 7198.890125][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 7198.890125][   T73]      process_backlog+0x101/0x620
[ 7198.890125][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 7198.890125][   T73]      net_rx_action+0x495/0xbe0
[ 7198.890125][   T73]      __do_softirq+0x1b5/0x7f6
[ 7198.890125][   T73] 
[ 7198.891809][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7198.891809][   T73]      netdev_get_by_index+0x5e/0x80
[ 7198.891809][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7198.891809][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7198.891809][   T73]      ip6_route_add+0x1c/0x140
[ 7198.891809][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7198.891809][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7198.891809][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7198.891809][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7198.891809][   T73]      netlink_rcv_skb+0x130/0x360
[ 7198.891809][   T73]      netlink_unicast+0x449/0x710
[ 7198.891809][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7198.891809][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7198.891809][   T73]      ___sys_sendmsg+0xee/0x170
[ 7198.891809][   T73]      __sys_sendmsg+0xcd/0x170
[ 7198.891809][   T73]      do_syscall_64+0xc6/0x1e0
[ 7198.891809][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7198.891809][   T73] 
[ 7198.893840][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7198.893840][   T73]      netdev_get_by_index+0x5e/0x80
[ 7198.893840][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7198.893840][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7198.893840][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7198.893840][   T73]      ipv6_add_addr+0x411/0x2000
[ 7198.893840][   T73]      inet6_addr_add+0x30e/0xa40
[ 7198.893840][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7198.893840][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7198.893840][   T73]      netlink_rcv_skb+0x130/0x360
[ 7198.893840][   T73]      netlink_unicast+0x449/0x710
[ 7198.893840][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7198.893840][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7198.893840][   T73]      ___sys_sendmsg+0xee/0x170
[ 7198.893840][   T73]      __sys_sendmsg+0xcd/0x170
[ 7198.893840][   T73]      do_syscall_64+0xc6/0x1e0
[ 7198.893840][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7198.893840][   T73] 
[ 7198.895835][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7198.895835][   T73]      netdev_get_by_index+0x5e/0x80
[ 7198.895835][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7198.895835][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7198.895835][   T73]      ip6_route_add+0x1c/0x140
[ 7198.895835][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7198.895835][   T73]      addrconf_add_dev+0xe2/0x170
[ 7198.895835][   T73]      inet6_addr_add+0x12f/0xa40
[ 7198.895835][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7198.895835][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7198.895835][   T73]      netlink_rcv_skb+0x130/0x360
[ 7198.895835][   T73]      netlink_unicast+0x449/0x710
[ 7198.895835][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7198.895835][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7198.895835][   T73]      ___sys_sendmsg+0xee/0x170
[ 7198.895835][   T73]      __sys_sendmsg+0xcd/0x170
[ 7198.895835][   T73]      do_syscall_64+0xc6/0x1e0
[ 7198.895835][   T73] 
[ 7198.897810][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7198.897810][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7198.897810][   T73]      ipv6_find_idev+0x102/0x170
[ 7198.897810][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7198.897810][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7198.897810][   T73]      netlink_rcv_skb+0x130/0x360
[ 7198.897810][   T73]      netlink_unicast+0x449/0x710
[ 7198.897810][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7198.897810][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7198.897810][   T73]      ___sys_sendmsg+0xee/0x170
[ 7198.897810][   T73]      __sys_sendmsg+0xcd/0x170
[ 7198.897810][   T73]      do_syscall_64+0xc6/0x1e0
[ 7198.897810][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7198.897810][   T73] 
[ 7198.899380][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7198.899380][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7198.899380][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7198.899380][   T73]      ipv6_find_idev+0x102/0x170
[ 7198.899380][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7198.899380][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7198.899380][   T73]      netlink_rcv_skb+0x130/0x360
[ 7198.899380][   T73]      netlink_unicast+0x449/0x710
[ 7198.899380][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7198.899380][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7198.899380][   T73]      ___sys_sendmsg+0xee/0x170
[ 7198.899380][   T73]      __sys_sendmsg+0xcd/0x170
[ 7198.899380][   T73]      do_syscall_64+0xc6/0x1e0
[ 7198.899380][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7198.899380][   T73] 
[ 7198.901077][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 7198.901357][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7198.901357][   T73]      netdev_get_by_index+0x5e/0x80
[ 7198.901357][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7198.901357][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7198.901357][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 7198.901357][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 7198.901357][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 7198.901357][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 7198.901357][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 7198.901357][   T73]      addrconf_dad_begin+0x310/0x670
[ 7198.901357][   T73]      addrconf_dad_work+0x10b/0xab0
[ 7198.901357][   T73]      process_one_work+0x84d/0x18a0
[ 7198.901357][   T73]      worker_thread+0x587/0xd30
[ 7198.901357][   T73]      kthread+0x28a/0x350
[ 7198.901357][   T73]      ret_from_fork+0x31/0x70
[ 7198.901357][   T73]      ret_from_fork_asm+0x1a/0x30
[ 7198.901357][   T73] 
[ 7198.903281][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7198.903281][   T73]      netdev_get_by_index+0x5e/0x80
[ 7198.903281][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7198.903281][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7198.903281][   T73]      ip6_route_add+0x1c/0x140
[ 7198.903281][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7198.903281][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7198.903281][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7198.903281][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7198.903281][   T73]      netlink_rcv_skb+0x130/0x360
[ 7198.903281][   T73]      netlink_unicast+0x449/0x710
[ 7198.903281][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7198.903281][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7198.903281][   T73]      ___sys_sendmsg+0xee/0x170
[ 7198.903281][   T73]      __sys_sendmsg+0xcd/0x170
[ 7198.903281][   T73]      do_syscall_64+0xc6/0x1e0
[ 7198.903281][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7198.903281][   T73] 
[ 7198.905296][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7198.905296][   T73]      netdev_get_by_index+0x5e/0x80
[ 7198.905296][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7198.905296][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7198.905296][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7198.905296][   T73]      ipv6_add_addr+0x411/0x2000
[ 7198.905296][   T73]      inet6_addr_add+0x30e/0xa40
[ 7198.905296][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7198.905296][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7198.905296][   T73]      netlink_rcv_skb+0x130/0x360
[ 7198.905296][   T73]      netlink_unicast+0x449/0x710
[ 7198.905296][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7198.905296][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7198.905296][   T73]      ___sys_sendmsg+0xee/0x170
[ 7198.905296][   T73]      __sys_sendmsg+0xcd/0x170
[ 7198.905296][   T73]      do_syscall_64+0xc6/0x1e0
[ 7198.905296][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7198.905296][   T73] 
[ 7198.907296][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7198.907296][   T73]      netdev_get_by_index+0x5e/0x80
[ 7198.907296][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7198.907296][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7198.907296][   T73]      ip6_route_add+0x1c/0x140
[ 7198.907296][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7198.907296][   T73]      addrconf_add_dev+0xe2/0x170
[ 7198.907296][   T73]      inet6_addr_add+0x12f/0xa40
[ 7198.907296][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7198.907296][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7198.907296][   T73]      netlink_rcv_skb+0x130/0x360
[ 7198.907296][   T73]      netlink_unicast+0x449/0x710
[ 7198.907296][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7198.907296][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7198.907296][   T73]      ___sys_sendmsg+0xee/0x170
[ 7198.907296][   T73]      __sys_sendmsg+0xcd/0x170
[ 7198.907296][   T73]      do_syscall_64+0xc6/0x1e0
[ 7198.907296][   T73] 
[ 7198.909271][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7198.909271][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7198.909271][   T73]      ipv6_find_idev+0x102/0x170
[ 7198.909271][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7198.909271][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7198.909271][   T73]      netlink_rcv_skb+0x130/0x360
[ 7198.909271][   T73]      netlink_unicast+0x449/0x710
[ 7198.909271][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7198.909271][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7198.909271][   T73]      ___sys_sendmsg+0xee/0x170
[ 7198.909271][   T73]      __sys_sendmsg+0xcd/0x170
[ 7198.909271][   T73]      do_syscall_64+0xc6/0x1e0
[ 7198.909271][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7198.909271][   T73] 
[ 7198.910826][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7198.910826][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7198.910826][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7198.910826][   T73]      ipv6_find_idev+0x102/0x170
[ 7198.910826][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7198.910826][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7198.910826][   T73]      netlink_rcv_skb+0x130/0x360
[ 7198.910826][   T73]      netlink_unicast+0x449/0x710
[ 7198.910826][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7198.910826][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7198.910826][   T73]      ___sys_sendmsg+0xee/0x170
[ 7198.910826][   T73]      __sys_sendmsg+0xcd/0x170
[ 7198.910826][   T73]      do_syscall_64+0xc6/0x1e0
[ 7198.910826][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7198.910826][   T73] 
[ 7198.912525][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 7198.912800][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7198.912800][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 7198.912800][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 7198.912800][   T73]      fib6_nh_init+0xa22/0x1580
[ 7198.912800][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7198.912800][   T73]      ip6_route_add+0x1c/0x140
[ 7198.912800][   T73]      inet6_rtm_newroute+0x104/0x110
[ 7198.912800][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7198.912800][   T73]      netlink_rcv_skb+0x130/0x360
[ 7198.912800][   T73]      netlink_unicast+0x449/0x710
[ 7198.912800][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7198.912800][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7198.912800][   T73]      ___sys_sendmsg+0xee/0x170
[ 7198.912800][   T73]      __sys_sendmsg+0xcd/0x170
[ 7198.912800][   T73]      do_syscall_64+0xc6/0x1e0
[ 7198.912800][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7198.912800][   T73] 
[ 7198.914879][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 7198.914879][   T73]      dst_init+0x84/0x4a0
[ 7198.914879][   T73]      dst_alloc+0x97/0x150
[ 7198.914879][   T73]      ip6_dst_alloc+0x23/0x90
[ 7198.914879][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 7198.914879][   T73]      ip6_pol_route+0x56f/0x840
[ 7198.914879][   T73]      fib6_rule_lookup+0x456/0x630
[ 7198.914879][   T73]      ip6_route_input+0x59c/0xa50
[ 7198.914879][   T73]      ipv6_rcv+0x397/0x810
[ 7198.914879][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 7198.914879][   T73]      process_backlog+0x101/0x620
[ 7198.914879][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 7198.914879][   T73]      net_rx_action+0x495/0xbe0
[ 7198.914879][   T73]      __do_softirq+0x1b5/0x7f6
[ 7198.914879][   T73] 
[ 7198.916720][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7198.916720][   T73]      netdev_get_by_index+0x5e/0x80
[ 7198.916720][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7198.916720][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7198.916720][   T73]      ip6_route_add+0x1c/0x140
[ 7198.916720][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7198.916720][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7198.916720][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7198.916720][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7198.916720][   T73]      netlink_rcv_skb+0x130/0x360
[ 7198.916720][   T73]      netlink_unicast+0x449/0x710
[ 7198.916720][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7198.916720][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7198.916720][   T73]      ___sys_sendmsg+0xee/0x170
[ 7198.916720][   T73]      __sys_sendmsg+0xcd/0x170
[ 7198.916720][   T73]      do_syscall_64+0xc6/0x1e0
[ 7198.916720][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7198.916720][   T73] 
[ 7198.918969][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7198.918969][   T73]      netdev_get_by_index+0x5e/0x80
[ 7198.918969][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7198.918969][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7198.918969][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7198.918969][   T73]      ipv6_add_addr+0x411/0x2000
[ 7198.918969][   T73]      inet6_addr_add+0x30e/0xa40
[ 7198.918969][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7198.918969][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7198.918969][   T73]      netlink_rcv_skb+0x130/0x360
[ 7198.918969][   T73]      netlink_unicast+0x449/0x710
[ 7198.918969][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7198.918969][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7198.918969][   T73]      ___sys_sendmsg+0xee/0x170
[ 7198.918969][   T73]      __sys_sendmsg+0xcd/0x170
[ 7198.918969][   T73]      do_syscall_64+0xc6/0x1e0
[ 7198.918969][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7198.918969][   T73] 
[ 7198.921180][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7198.921180][   T73]      netdev_get_by_index+0x5e/0x80
[ 7198.921180][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7198.921180][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7198.921180][   T73]      ip6_route_add+0x1c/0x140
[ 7198.921180][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7198.921180][   T73]      addrconf_add_dev+0xe2/0x170
[ 7198.921180][   T73]      inet6_addr_add+0x12f/0xa40
[ 7198.921180][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7198.921180][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7198.921180][   T73]      netlink_rcv_skb+0x130/0x360
[ 7198.921180][   T73]      netlink_unicast+0x449/0x710
[ 7198.921180][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7198.921180][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7198.921180][   T73]      ___sys_sendmsg+0xee/0x170
[ 7198.921180][   T73]      __sys_sendmsg+0xcd/0x170
[ 7198.921180][   T73]      do_syscall_64+0xc6/0x1e0
[ 7198.921180][   T73] 
[ 7198.923454][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7198.923454][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7198.923454][   T73]      ipv6_find_idev+0x102/0x170
[ 7198.923454][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7198.923454][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7198.923454][   T73]      netlink_rcv_skb+0x130/0x360
[ 7198.923454][   T73]      netlink_unicast+0x449/0x710
[ 7198.923454][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7198.923454][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7198.923454][   T73]      ___sys_sendmsg+0xee/0x170
[ 7198.923454][   T73]      __sys_sendmsg+0xcd/0x170
[ 7198.923454][   T73]      do_syscall_64+0xc6/0x1e0
[ 7198.923454][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7198.923454][   T73] 
[ 7198.925184][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7198.925184][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7198.925184][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7198.925184][   T73]      ipv6_find_idev+0x102/0x170
[ 7198.925184][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7198.925184][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7198.925184][   T73]      netlink_rcv_skb+0x130/0x360
[ 7198.925184][   T73]      netlink_unicast+0x449/0x710
[ 7198.925184][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7198.925184][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7198.925184][   T73]      ___sys_sendmsg+0xee/0x170
[ 7198.925184][   T73]      __sys_sendmsg+0xcd/0x170
[ 7198.925184][   T73]      do_syscall_64+0xc6/0x1e0
[ 7198.925184][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7198.925184][   T73] 
[ 7198.927128][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 7198.927397][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7198.927397][   T73]      netdev_get_by_index+0x5e/0x80
[ 7198.927397][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7198.927397][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7198.927397][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 7198.927397][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 7198.927397][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 7198.927397][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 7198.927397][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 7198.927397][   T73]      addrconf_dad_begin+0x310/0x670
[ 7198.927397][   T73]      addrconf_dad_work+0x10b/0xab0
[ 7198.927397][   T73]      process_one_work+0x84d/0x18a0
[ 7198.927397][   T73]      worker_thread+0x587/0xd30
[ 7198.927397][   T73]      kthread+0x28a/0x350
[ 7198.927397][   T73]      ret_from_fork+0x31/0x70
[ 7198.927397][   T73]      ret_from_fork_asm+0x1a/0x30
[ 7198.927397][   T73] 
[ 7198.929565][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7198.929565][   T73]      netdev_get_by_index+0x5e/0x80
[ 7198.929565][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7198.929565][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7198.929565][   T73]      ip6_route_add+0x1c/0x140
[ 7198.929565][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7198.929565][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7198.929565][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7198.929565][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7198.929565][   T73]      netlink_rcv_skb+0x130/0x360
[ 7198.929565][   T73]      netlink_unicast+0x449/0x710
[ 7198.929565][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7198.929565][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7198.929565][   T73]      ___sys_sendmsg+0xee/0x170
[ 7198.929565][   T73]      __sys_sendmsg+0xcd/0x170
[ 7198.929565][   T73]      do_syscall_64+0xc6/0x1e0
[ 7198.929565][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7198.929565][   T73] 
[ 7198.931773][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7198.931773][   T73]      netdev_get_by_index+0x5e/0x80
[ 7198.931773][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7198.931773][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7198.931773][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7198.931773][   T73]      ipv6_add_addr+0x411/0x2000
[ 7198.931773][   T73]      inet6_addr_add+0x30e/0xa40
[ 7198.931773][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7198.931773][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7198.931773][   T73]      netlink_rcv_skb+0x130/0x360
[ 7198.931773][   T73]      netlink_unicast+0x449/0x710
[ 7198.931773][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7198.931773][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7198.931773][   T73]      ___sys_sendmsg+0xee/0x170
[ 7198.931773][   T73]      __sys_sendmsg+0xcd/0x170
[ 7198.931773][   T73]      do_syscall_64+0xc6/0x1e0
[ 7198.931773][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7198.931773][   T73] 
[ 7198.934092][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7198.934092][   T73]      netdev_get_by_index+0x5e/0x80
[ 7198.934092][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7198.934092][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7198.934092][   T73]      ip6_route_add+0x1c/0x140
[ 7198.934092][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7198.934092][   T73]      addrconf_add_dev+0xe2/0x170
[ 7198.934092][   T73]      inet6_addr_add+0x12f/0xa40
[ 7198.934092][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7198.934092][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7198.934092][   T73]      netlink_rcv_skb+0x130/0x360
[ 7198.934092][   T73]      netlink_unicast+0x449/0x710
[ 7198.934092][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7198.934092][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7198.934092][   T73]      ___sys_sendmsg+0xee/0x170
[ 7198.934092][   T73]      __sys_sendmsg+0xcd/0x170
[ 7198.934092][   T73]      do_syscall_64+0xc6/0x1e0
[ 7198.934092][   T73] 
[ 7198.936304][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7198.936304][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7198.936304][   T73]      ipv6_find_idev+0x102/0x170
[ 7198.936304][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7198.936304][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7198.936304][   T73]      netlink_rcv_skb+0x130/0x360
[ 7198.936304][   T73]      netlink_unicast+0x449/0x710
[ 7198.936304][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7198.936304][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7198.936304][   T73]      ___sys_sendmsg+0xee/0x170
[ 7198.936304][   T73]      __sys_sendmsg+0xcd/0x170
[ 7198.936304][   T73]      do_syscall_64+0xc6/0x1e0
[ 7198.936304][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7198.936304][   T73] 
[ 7198.938039][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7198.938039][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7198.938039][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7198.938039][   T73]      ipv6_find_idev+0x102/0x170
[ 7198.938039][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7198.938039][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7198.938039][   T73]      netlink_rcv_skb+0x130/0x360
[ 7198.938039][   T73]      netlink_unicast+0x449/0x710
[ 7198.938039][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7198.938039][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7198.938039][   T73]      ___sys_sendmsg+0xee/0x170
[ 7198.938039][   T73]      __sys_sendmsg+0xcd/0x170
[ 7198.938039][   T73]      do_syscall_64+0xc6/0x1e0
[ 7198.938039][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7198.938039][   T73] 
[ 7209.191693][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 7209.192159][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7209.192159][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 7209.192159][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 7209.192159][   T73]      fib6_nh_init+0xa22/0x1580
[ 7209.192159][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7209.192159][   T73]      ip6_route_add+0x1c/0x140
[ 7209.192159][   T73]      inet6_rtm_newroute+0x104/0x110
[ 7209.192159][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7209.192159][   T73]      netlink_rcv_skb+0x130/0x360
[ 7209.192159][   T73]      netlink_unicast+0x449/0x710
[ 7209.192159][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7209.192159][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7209.192159][   T73]      ___sys_sendmsg+0xee/0x170
[ 7209.192159][   T73]      __sys_sendmsg+0xcd/0x170
[ 7209.192159][   T73]      do_syscall_64+0xc6/0x1e0
[ 7209.192159][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7209.192159][   T73] 
[ 7209.194068][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 7209.194068][   T73]      dst_init+0x84/0x4a0
[ 7209.194068][   T73]      dst_alloc+0x97/0x150
[ 7209.194068][   T73]      ip6_dst_alloc+0x23/0x90
[ 7209.194068][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 7209.194068][   T73]      ip6_pol_route+0x56f/0x840
[ 7209.194068][   T73]      fib6_rule_lookup+0x456/0x630
[ 7209.194068][   T73]      ip6_route_input+0x59c/0xa50
[ 7209.194068][   T73]      ipv6_rcv+0x397/0x810
[ 7209.194068][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 7209.194068][   T73]      process_backlog+0x101/0x620
[ 7209.194068][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 7209.194068][   T73]      net_rx_action+0x495/0xbe0
[ 7209.194068][   T73]      __do_softirq+0x1b5/0x7f6
[ 7209.194068][   T73] 
[ 7209.195721][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7209.195721][   T73]      netdev_get_by_index+0x5e/0x80
[ 7209.195721][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7209.195721][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7209.195721][   T73]      ip6_route_add+0x1c/0x140
[ 7209.195721][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7209.195721][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7209.195721][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7209.195721][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7209.195721][   T73]      netlink_rcv_skb+0x130/0x360
[ 7209.195721][   T73]      netlink_unicast+0x449/0x710
[ 7209.195721][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7209.195721][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7209.195721][   T73]      ___sys_sendmsg+0xee/0x170
[ 7209.195721][   T73]      __sys_sendmsg+0xcd/0x170
[ 7209.195721][   T73]      do_syscall_64+0xc6/0x1e0
[ 7209.195721][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7209.195721][   T73] 
[ 7209.197739][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7209.197739][   T73]      netdev_get_by_index+0x5e/0x80
[ 7209.197739][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7209.197739][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7209.197739][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7209.197739][   T73]      ipv6_add_addr+0x411/0x2000
[ 7209.197739][   T73]      inet6_addr_add+0x30e/0xa40
[ 7209.197739][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7209.197739][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7209.197739][   T73]      netlink_rcv_skb+0x130/0x360
[ 7209.197739][   T73]      netlink_unicast+0x449/0x710
[ 7209.197739][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7209.197739][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7209.197739][   T73]      ___sys_sendmsg+0xee/0x170
[ 7209.197739][   T73]      __sys_sendmsg+0xcd/0x170
[ 7209.197739][   T73]      do_syscall_64+0xc6/0x1e0
[ 7209.197739][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7209.197739][   T73] 
[ 7209.199763][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7209.199763][   T73]      netdev_get_by_index+0x5e/0x80
[ 7209.199763][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7209.199763][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7209.199763][   T73]      ip6_route_add+0x1c/0x140
[ 7209.199763][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7209.199763][   T73]      addrconf_add_dev+0xe2/0x170
[ 7209.199763][   T73]      inet6_addr_add+0x12f/0xa40
[ 7209.199763][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7209.199763][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7209.199763][   T73]      netlink_rcv_skb+0x130/0x360
[ 7209.199763][   T73]      netlink_unicast+0x449/0x710
[ 7209.199763][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7209.199763][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7209.199763][   T73]      ___sys_sendmsg+0xee/0x170
[ 7209.199763][   T73]      __sys_sendmsg+0xcd/0x170
[ 7209.199763][   T73]      do_syscall_64+0xc6/0x1e0
[ 7209.199763][   T73] 
[ 7209.201768][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7209.201768][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7209.201768][   T73]      ipv6_find_idev+0x102/0x170
[ 7209.201768][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7209.201768][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7209.201768][   T73]      netlink_rcv_skb+0x130/0x360
[ 7209.201768][   T73]      netlink_unicast+0x449/0x710
[ 7209.201768][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7209.201768][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7209.201768][   T73]      ___sys_sendmsg+0xee/0x170
[ 7209.201768][   T73]      __sys_sendmsg+0xcd/0x170
[ 7209.201768][   T73]      do_syscall_64+0xc6/0x1e0
[ 7209.201768][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7209.201768][   T73] 
[ 7209.203320][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7209.203320][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7209.203320][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7209.203320][   T73]      ipv6_find_idev+0x102/0x170
[ 7209.203320][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7209.203320][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7209.203320][   T73]      netlink_rcv_skb+0x130/0x360
[ 7209.203320][   T73]      netlink_unicast+0x449/0x710
[ 7209.203320][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7209.203320][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7209.203320][   T73]      ___sys_sendmsg+0xee/0x170
[ 7209.203320][   T73]      __sys_sendmsg+0xcd/0x170
[ 7209.203320][   T73]      do_syscall_64+0xc6/0x1e0
[ 7209.203320][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7209.203320][   T73] 
[ 7209.205014][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 7209.205303][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7209.205303][   T73]      netdev_get_by_index+0x5e/0x80
[ 7209.205303][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7209.205303][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7209.205303][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 7209.205303][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 7209.205303][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 7209.205303][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 7209.205303][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 7209.205303][   T73]      addrconf_dad_begin+0x310/0x670
[ 7209.205303][   T73]      addrconf_dad_work+0x10b/0xab0
[ 7209.205303][   T73]      process_one_work+0x84d/0x18a0
[ 7209.205303][   T73]      worker_thread+0x587/0xd30
[ 7209.205303][   T73]      kthread+0x28a/0x350
[ 7209.205303][   T73]      ret_from_fork+0x31/0x70
[ 7209.205303][   T73]      ret_from_fork_asm+0x1a/0x30
[ 7209.205303][   T73] 
[ 7209.207228][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7209.207228][   T73]      netdev_get_by_index+0x5e/0x80
[ 7209.207228][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7209.207228][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7209.207228][   T73]      ip6_route_add+0x1c/0x140
[ 7209.207228][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7209.207228][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7209.207228][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7209.207228][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7209.207228][   T73]      netlink_rcv_skb+0x130/0x360
[ 7209.207228][   T73]      netlink_unicast+0x449/0x710
[ 7209.207228][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7209.207228][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7209.207228][   T73]      ___sys_sendmsg+0xee/0x170
[ 7209.207228][   T73]      __sys_sendmsg+0xcd/0x170
[ 7209.207228][   T73]      do_syscall_64+0xc6/0x1e0
[ 7209.207228][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7209.207228][   T73] 
[ 7209.209242][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7209.209242][   T73]      netdev_get_by_index+0x5e/0x80
[ 7209.209242][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7209.209242][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7209.209242][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7209.209242][   T73]      ipv6_add_addr+0x411/0x2000
[ 7209.209242][   T73]      inet6_addr_add+0x30e/0xa40
[ 7209.209242][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7209.209242][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7209.209242][   T73]      netlink_rcv_skb+0x130/0x360
[ 7209.209242][   T73]      netlink_unicast+0x449/0x710
[ 7209.209242][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7209.209242][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7209.209242][   T73]      ___sys_sendmsg+0xee/0x170
[ 7209.209242][   T73]      __sys_sendmsg+0xcd/0x170
[ 7209.209242][   T73]      do_syscall_64+0xc6/0x1e0
[ 7209.209242][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7209.209242][   T73] 
[ 7209.211265][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7209.211265][   T73]      netdev_get_by_index+0x5e/0x80
[ 7209.211265][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7209.211265][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7209.211265][   T73]      ip6_route_add+0x1c/0x140
[ 7209.211265][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7209.211265][   T73]      addrconf_add_dev+0xe2/0x170
[ 7209.211265][   T73]      inet6_addr_add+0x12f/0xa40
[ 7209.211265][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7209.211265][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7209.211265][   T73]      netlink_rcv_skb+0x130/0x360
[ 7209.211265][   T73]      netlink_unicast+0x449/0x710
[ 7209.211265][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7209.211265][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7209.211265][   T73]      ___sys_sendmsg+0xee/0x170
[ 7209.211265][   T73]      __sys_sendmsg+0xcd/0x170
[ 7209.211265][   T73]      do_syscall_64+0xc6/0x1e0
[ 7209.211265][   T73] 
[ 7209.213240][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7209.213240][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7209.213240][   T73]      ipv6_find_idev+0x102/0x170
[ 7209.213240][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7209.213240][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7209.213240][   T73]      netlink_rcv_skb+0x130/0x360
[ 7209.213240][   T73]      netlink_unicast+0x449/0x710
[ 7209.213240][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7209.213240][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7209.213240][   T73]      ___sys_sendmsg+0xee/0x170
[ 7209.213240][   T73]      __sys_sendmsg+0xcd/0x170
[ 7209.213240][   T73]      do_syscall_64+0xc6/0x1e0
[ 7209.213240][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7209.213240][   T73] 
[ 7209.214788][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7209.214788][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7209.214788][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7209.214788][   T73]      ipv6_find_idev+0x102/0x170
[ 7209.214788][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7209.214788][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7209.214788][   T73]      netlink_rcv_skb+0x130/0x360
[ 7209.214788][   T73]      netlink_unicast+0x449/0x710
[ 7209.214788][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7209.214788][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7209.214788][   T73]      ___sys_sendmsg+0xee/0x170
[ 7209.214788][   T73]      __sys_sendmsg+0xcd/0x170
[ 7209.214788][   T73]      do_syscall_64+0xc6/0x1e0
[ 7209.214788][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7209.214788][   T73] 
[ 7209.216476][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 7209.216795][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7209.216795][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 7209.216795][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 7209.216795][   T73]      fib6_nh_init+0xa22/0x1580
[ 7209.216795][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7209.216795][   T73]      ip6_route_add+0x1c/0x140
[ 7209.216795][   T73]      inet6_rtm_newroute+0x104/0x110
[ 7209.216795][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7209.216795][   T73]      netlink_rcv_skb+0x130/0x360
[ 7209.216795][   T73]      netlink_unicast+0x449/0x710
[ 7209.216795][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7209.216795][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7209.216795][   T73]      ___sys_sendmsg+0xee/0x170
[ 7209.216795][   T73]      __sys_sendmsg+0xcd/0x170
[ 7209.216795][   T73]      do_syscall_64+0xc6/0x1e0
[ 7209.216795][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7209.216795][   T73] 
[ 7209.218925][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 7209.218925][   T73]      dst_init+0x84/0x4a0
[ 7209.218925][   T73]      dst_alloc+0x97/0x150
[ 7209.218925][   T73]      ip6_dst_alloc+0x23/0x90
[ 7209.218925][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 7209.218925][   T73]      ip6_pol_route+0x56f/0x840
[ 7209.218925][   T73]      fib6_rule_lookup+0x456/0x630
[ 7209.218925][   T73]      ip6_route_input+0x59c/0xa50
[ 7209.218925][   T73]      ipv6_rcv+0x397/0x810
[ 7209.218925][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 7209.218925][   T73]      process_backlog+0x101/0x620
[ 7209.218925][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 7209.218925][   T73]      net_rx_action+0x495/0xbe0
[ 7209.218925][   T73]      __do_softirq+0x1b5/0x7f6
[ 7209.218925][   T73] 
[ 7209.220763][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7209.220763][   T73]      netdev_get_by_index+0x5e/0x80
[ 7209.220763][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7209.220763][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7209.220763][   T73]      ip6_route_add+0x1c/0x140
[ 7209.220763][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7209.220763][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7209.220763][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7209.220763][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7209.220763][   T73]      netlink_rcv_skb+0x130/0x360
[ 7209.220763][   T73]      netlink_unicast+0x449/0x710
[ 7209.220763][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7209.220763][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7209.220763][   T73]      ___sys_sendmsg+0xee/0x170
[ 7209.220763][   T73]      __sys_sendmsg+0xcd/0x170
[ 7209.220763][   T73]      do_syscall_64+0xc6/0x1e0
[ 7209.220763][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7209.220763][   T73] 
[ 7209.223096][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7209.223096][   T73]      netdev_get_by_index+0x5e/0x80
[ 7209.223096][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7209.223096][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7209.223096][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7209.223096][   T73]      ipv6_add_addr+0x411/0x2000
[ 7209.223096][   T73]      inet6_addr_add+0x30e/0xa40
[ 7209.223096][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7209.223096][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7209.223096][   T73]      netlink_rcv_skb+0x130/0x360
[ 7209.223096][   T73]      netlink_unicast+0x449/0x710
[ 7209.223096][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7209.223096][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7209.223096][   T73]      ___sys_sendmsg+0xee/0x170
[ 7209.223096][   T73]      __sys_sendmsg+0xcd/0x170
[ 7209.223096][   T73]      do_syscall_64+0xc6/0x1e0
[ 7209.223096][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7209.223096][   T73] 
[ 7209.225354][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7209.225354][   T73]      netdev_get_by_index+0x5e/0x80
[ 7209.225354][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7209.225354][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7209.225354][   T73]      ip6_route_add+0x1c/0x140
[ 7209.225354][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7209.225354][   T73]      addrconf_add_dev+0xe2/0x170
[ 7209.225354][   T73]      inet6_addr_add+0x12f/0xa40
[ 7209.225354][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7209.225354][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7209.225354][   T73]      netlink_rcv_skb+0x130/0x360
[ 7209.225354][   T73]      netlink_unicast+0x449/0x710
[ 7209.225354][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7209.225354][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7209.225354][   T73]      ___sys_sendmsg+0xee/0x170
[ 7209.225354][   T73]      __sys_sendmsg+0xcd/0x170
[ 7209.225354][   T73]      do_syscall_64+0xc6/0x1e0
[ 7209.225354][   T73] 
[ 7209.227525][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7209.227525][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7209.227525][   T73]      ipv6_find_idev+0x102/0x170
[ 7209.227525][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7209.227525][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7209.227525][   T73]      netlink_rcv_skb+0x130/0x360
[ 7209.227525][   T73]      netlink_unicast+0x449/0x710
[ 7209.227525][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7209.227525][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7209.227525][   T73]      ___sys_sendmsg+0xee/0x170
[ 7209.227525][   T73]      __sys_sendmsg+0xcd/0x170
[ 7209.227525][   T73]      do_syscall_64+0xc6/0x1e0
[ 7209.227525][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7209.227525][   T73] 
[ 7209.229259][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7209.229259][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7209.229259][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7209.229259][   T73]      ipv6_find_idev+0x102/0x170
[ 7209.229259][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7209.229259][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7209.229259][   T73]      netlink_rcv_skb+0x130/0x360
[ 7209.229259][   T73]      netlink_unicast+0x449/0x710
[ 7209.229259][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7209.229259][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7209.229259][   T73]      ___sys_sendmsg+0xee/0x170
[ 7209.229259][   T73]      __sys_sendmsg+0xcd/0x170
[ 7209.229259][   T73]      do_syscall_64+0xc6/0x1e0
[ 7209.229259][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7209.229259][   T73] 
[ 7209.231186][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 7209.231461][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7209.231461][   T73]      netdev_get_by_index+0x5e/0x80
[ 7209.231461][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7209.231461][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7209.231461][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 7209.231461][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 7209.231461][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 7209.231461][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 7209.231461][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 7209.231461][   T73]      addrconf_dad_begin+0x310/0x670
[ 7209.231461][   T73]      addrconf_dad_work+0x10b/0xab0
[ 7209.231461][   T73]      process_one_work+0x84d/0x18a0
[ 7209.231461][   T73]      worker_thread+0x587/0xd30
[ 7209.231461][   T73]      kthread+0x28a/0x350
[ 7209.231461][   T73]      ret_from_fork+0x31/0x70
[ 7209.231461][   T73]      ret_from_fork_asm+0x1a/0x30
[ 7209.231461][   T73] 
[ 7209.233689][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7209.233689][   T73]      netdev_get_by_index+0x5e/0x80
[ 7209.233689][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7209.233689][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7209.233689][   T73]      ip6_route_add+0x1c/0x140
[ 7209.233689][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7209.233689][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7209.233689][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7209.233689][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7209.233689][   T73]      netlink_rcv_skb+0x130/0x360
[ 7209.233689][   T73]      netlink_unicast+0x449/0x710
[ 7209.233689][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7209.233689][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7209.233689][   T73]      ___sys_sendmsg+0xee/0x170
[ 7209.233689][   T73]      __sys_sendmsg+0xcd/0x170
[ 7209.233689][   T73]      do_syscall_64+0xc6/0x1e0
[ 7209.233689][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7209.233689][   T73] 
[ 7209.235877][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7209.235877][   T73]      netdev_get_by_index+0x5e/0x80
[ 7209.235877][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7209.235877][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7209.235877][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7209.235877][   T73]      ipv6_add_addr+0x411/0x2000
[ 7209.235877][   T73]      inet6_addr_add+0x30e/0xa40
[ 7209.235877][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7209.235877][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7209.235877][   T73]      netlink_rcv_skb+0x130/0x360
[ 7209.235877][   T73]      netlink_unicast+0x449/0x710
[ 7209.235877][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7209.235877][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7209.235877][   T73]      ___sys_sendmsg+0xee/0x170
[ 7209.235877][   T73]      __sys_sendmsg+0xcd/0x170
[ 7209.235877][   T73]      do_syscall_64+0xc6/0x1e0
[ 7209.235877][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7209.235877][   T73] 
[ 7209.238123][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7209.238123][   T73]      netdev_get_by_index+0x5e/0x80
[ 7209.238123][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7209.238123][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7209.238123][   T73]      ip6_route_add+0x1c/0x140
[ 7209.238123][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7209.238123][   T73]      addrconf_add_dev+0xe2/0x170
[ 7209.238123][   T73]      inet6_addr_add+0x12f/0xa40
[ 7209.238123][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7209.238123][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7209.238123][   T73]      netlink_rcv_skb+0x130/0x360
[ 7209.238123][   T73]      netlink_unicast+0x449/0x710
[ 7209.238123][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7209.238123][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7209.238123][   T73]      ___sys_sendmsg+0xee/0x170
[ 7209.238123][   T73]      __sys_sendmsg+0xcd/0x170
[ 7209.238123][   T73]      do_syscall_64+0xc6/0x1e0
[ 7209.238123][   T73] 
[ 7209.240331][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7209.240331][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7209.240331][   T73]      ipv6_find_idev+0x102/0x170
[ 7209.240331][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7209.240331][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7209.240331][   T73]      netlink_rcv_skb+0x130/0x360
[ 7209.240331][   T73]      netlink_unicast+0x449/0x710
[ 7209.240331][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7209.240331][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7209.240331][   T73]      ___sys_sendmsg+0xee/0x170
[ 7209.240331][   T73]      __sys_sendmsg+0xcd/0x170
[ 7209.240331][   T73]      do_syscall_64+0xc6/0x1e0
[ 7209.240331][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7209.240331][   T73] 
[ 7209.242117][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7209.242117][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7209.242117][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7209.242117][   T73]      ipv6_find_idev+0x102/0x170
[ 7209.242117][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7209.242117][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7209.242117][   T73]      netlink_rcv_skb+0x130/0x360
[ 7209.242117][   T73]      netlink_unicast+0x449/0x710
[ 7209.242117][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7209.242117][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7209.242117][   T73]      ___sys_sendmsg+0xee/0x170
[ 7209.242117][   T73]      __sys_sendmsg+0xcd/0x170
[ 7209.242117][   T73]      do_syscall_64+0xc6/0x1e0
[ 7209.242117][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7209.242117][   T73] 
[ 7219.247753][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 7219.248196][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7219.248196][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 7219.248196][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 7219.248196][   T73]      fib6_nh_init+0xa22/0x1580
[ 7219.248196][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7219.248196][   T73]      ip6_route_add+0x1c/0x140
[ 7219.248196][   T73]      inet6_rtm_newroute+0x104/0x110
[ 7219.248196][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7219.248196][   T73]      netlink_rcv_skb+0x130/0x360
[ 7219.248196][   T73]      netlink_unicast+0x449/0x710
[ 7219.248196][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7219.248196][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7219.248196][   T73]      ___sys_sendmsg+0xee/0x170
[ 7219.248196][   T73]      __sys_sendmsg+0xcd/0x170
[ 7219.248196][   T73]      do_syscall_64+0xc6/0x1e0
[ 7219.248196][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7219.248196][   T73] 
[ 7219.250118][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 7219.250118][   T73]      dst_init+0x84/0x4a0
[ 7219.250118][   T73]      dst_alloc+0x97/0x150
[ 7219.250118][   T73]      ip6_dst_alloc+0x23/0x90
[ 7219.250118][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 7219.250118][   T73]      ip6_pol_route+0x56f/0x840
[ 7219.250118][   T73]      fib6_rule_lookup+0x456/0x630
[ 7219.250118][   T73]      ip6_route_input+0x59c/0xa50
[ 7219.250118][   T73]      ipv6_rcv+0x397/0x810
[ 7219.250118][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 7219.250118][   T73]      process_backlog+0x101/0x620
[ 7219.250118][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 7219.250118][   T73]      net_rx_action+0x495/0xbe0
[ 7219.250118][   T73]      __do_softirq+0x1b5/0x7f6
[ 7219.250118][   T73] 
[ 7219.251780][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7219.251780][   T73]      netdev_get_by_index+0x5e/0x80
[ 7219.251780][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7219.251780][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7219.251780][   T73]      ip6_route_add+0x1c/0x140
[ 7219.251780][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7219.251780][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7219.251780][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7219.251780][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7219.251780][   T73]      netlink_rcv_skb+0x130/0x360
[ 7219.251780][   T73]      netlink_unicast+0x449/0x710
[ 7219.251780][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7219.251780][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7219.251780][   T73]      ___sys_sendmsg+0xee/0x170
[ 7219.251780][   T73]      __sys_sendmsg+0xcd/0x170
[ 7219.251780][   T73]      do_syscall_64+0xc6/0x1e0
[ 7219.251780][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7219.251780][   T73] 
[ 7219.253765][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7219.253765][   T73]      netdev_get_by_index+0x5e/0x80
[ 7219.253765][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7219.253765][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7219.253765][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7219.253765][   T73]      ipv6_add_addr+0x411/0x2000
[ 7219.253765][   T73]      inet6_addr_add+0x30e/0xa40
[ 7219.253765][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7219.253765][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7219.253765][   T73]      netlink_rcv_skb+0x130/0x360
[ 7219.253765][   T73]      netlink_unicast+0x449/0x710
[ 7219.253765][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7219.253765][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7219.253765][   T73]      ___sys_sendmsg+0xee/0x170
[ 7219.253765][   T73]      __sys_sendmsg+0xcd/0x170
[ 7219.253765][   T73]      do_syscall_64+0xc6/0x1e0
[ 7219.253765][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7219.253765][   T73] 
[ 7219.255746][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7219.255746][   T73]      netdev_get_by_index+0x5e/0x80
[ 7219.255746][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7219.255746][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7219.255746][   T73]      ip6_route_add+0x1c/0x140
[ 7219.255746][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7219.255746][   T73]      addrconf_add_dev+0xe2/0x170
[ 7219.255746][   T73]      inet6_addr_add+0x12f/0xa40
[ 7219.255746][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7219.255746][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7219.255746][   T73]      netlink_rcv_skb+0x130/0x360
[ 7219.255746][   T73]      netlink_unicast+0x449/0x710
[ 7219.255746][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7219.255746][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7219.255746][   T73]      ___sys_sendmsg+0xee/0x170
[ 7219.255746][   T73]      __sys_sendmsg+0xcd/0x170
[ 7219.255746][   T73]      do_syscall_64+0xc6/0x1e0
[ 7219.255746][   T73] 
[ 7219.257739][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7219.257739][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7219.257739][   T73]      ipv6_find_idev+0x102/0x170
[ 7219.257739][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7219.257739][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7219.257739][   T73]      netlink_rcv_skb+0x130/0x360
[ 7219.257739][   T73]      netlink_unicast+0x449/0x710
[ 7219.257739][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7219.257739][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7219.257739][   T73]      ___sys_sendmsg+0xee/0x170
[ 7219.257739][   T73]      __sys_sendmsg+0xcd/0x170
[ 7219.257739][   T73]      do_syscall_64+0xc6/0x1e0
[ 7219.257739][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7219.257739][   T73] 
[ 7219.259272][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7219.259272][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7219.259272][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7219.259272][   T73]      ipv6_find_idev+0x102/0x170
[ 7219.259272][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7219.259272][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7219.259272][   T73]      netlink_rcv_skb+0x130/0x360
[ 7219.259272][   T73]      netlink_unicast+0x449/0x710
[ 7219.259272][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7219.259272][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7219.259272][   T73]      ___sys_sendmsg+0xee/0x170
[ 7219.259272][   T73]      __sys_sendmsg+0xcd/0x170
[ 7219.259272][   T73]      do_syscall_64+0xc6/0x1e0
[ 7219.259272][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7219.259272][   T73] 
[ 7219.260948][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 7219.261247][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7219.261247][   T73]      netdev_get_by_index+0x5e/0x80
[ 7219.261247][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7219.261247][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7219.261247][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 7219.261247][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 7219.261247][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 7219.261247][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 7219.261247][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 7219.261247][   T73]      addrconf_dad_begin+0x310/0x670
[ 7219.261247][   T73]      addrconf_dad_work+0x10b/0xab0
[ 7219.261247][   T73]      process_one_work+0x84d/0x18a0
[ 7219.261247][   T73]      worker_thread+0x587/0xd30
[ 7219.261247][   T73]      kthread+0x28a/0x350
[ 7219.261247][   T73]      ret_from_fork+0x31/0x70
[ 7219.261247][   T73]      ret_from_fork_asm+0x1a/0x30
[ 7219.261247][   T73] 
[ 7219.263147][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7219.263147][   T73]      netdev_get_by_index+0x5e/0x80
[ 7219.263147][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7219.263147][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7219.263147][   T73]      ip6_route_add+0x1c/0x140
[ 7219.263147][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7219.263147][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7219.263147][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7219.263147][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7219.263147][   T73]      netlink_rcv_skb+0x130/0x360
[ 7219.263147][   T73]      netlink_unicast+0x449/0x710
[ 7219.263147][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7219.263147][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7219.263147][   T73]      ___sys_sendmsg+0xee/0x170
[ 7219.263147][   T73]      __sys_sendmsg+0xcd/0x170
[ 7219.263147][   T73]      do_syscall_64+0xc6/0x1e0
[ 7219.263147][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7219.263147][   T73] 
[ 7219.265137][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7219.265137][   T73]      netdev_get_by_index+0x5e/0x80
[ 7219.265137][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7219.265137][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7219.265137][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7219.265137][   T73]      ipv6_add_addr+0x411/0x2000
[ 7219.265137][   T73]      inet6_addr_add+0x30e/0xa40
[ 7219.265137][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7219.265137][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7219.265137][   T73]      netlink_rcv_skb+0x130/0x360
[ 7219.265137][   T73]      netlink_unicast+0x449/0x710
[ 7219.265137][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7219.265137][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7219.265137][   T73]      ___sys_sendmsg+0xee/0x170
[ 7219.265137][   T73]      __sys_sendmsg+0xcd/0x170
[ 7219.265137][   T73]      do_syscall_64+0xc6/0x1e0
[ 7219.265137][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7219.265137][   T73] 
[ 7219.267142][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7219.267142][   T73]      netdev_get_by_index+0x5e/0x80
[ 7219.267142][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7219.267142][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7219.267142][   T73]      ip6_route_add+0x1c/0x140
[ 7219.267142][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7219.267142][   T73]      addrconf_add_dev+0xe2/0x170
[ 7219.267142][   T73]      inet6_addr_add+0x12f/0xa40
[ 7219.267142][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7219.267142][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7219.267142][   T73]      netlink_rcv_skb+0x130/0x360
[ 7219.267142][   T73]      netlink_unicast+0x449/0x710
[ 7219.267142][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7219.267142][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7219.267142][   T73]      ___sys_sendmsg+0xee/0x170
[ 7219.267142][   T73]      __sys_sendmsg+0xcd/0x170
[ 7219.267142][   T73]      do_syscall_64+0xc6/0x1e0
[ 7219.267142][   T73] 
[ 7219.269107][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7219.269107][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7219.269107][   T73]      ipv6_find_idev+0x102/0x170
[ 7219.269107][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7219.269107][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7219.269107][   T73]      netlink_rcv_skb+0x130/0x360
[ 7219.269107][   T73]      netlink_unicast+0x449/0x710
[ 7219.269107][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7219.269107][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7219.269107][   T73]      ___sys_sendmsg+0xee/0x170
[ 7219.269107][   T73]      __sys_sendmsg+0xcd/0x170
[ 7219.269107][   T73]      do_syscall_64+0xc6/0x1e0
[ 7219.269107][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7219.269107][   T73] 
[ 7219.270637][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7219.270637][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7219.270637][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7219.270637][   T73]      ipv6_find_idev+0x102/0x170
[ 7219.270637][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7219.270637][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7219.270637][   T73]      netlink_rcv_skb+0x130/0x360
[ 7219.270637][   T73]      netlink_unicast+0x449/0x710
[ 7219.270637][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7219.270637][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7219.270637][   T73]      ___sys_sendmsg+0xee/0x170
[ 7219.270637][   T73]      __sys_sendmsg+0xcd/0x170
[ 7219.270637][   T73]      do_syscall_64+0xc6/0x1e0
[ 7219.270637][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7219.270637][   T73] 
[ 7219.272335][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 7219.272602][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7219.272602][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 7219.272602][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 7219.272602][   T73]      fib6_nh_init+0xa22/0x1580
[ 7219.272602][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7219.272602][   T73]      ip6_route_add+0x1c/0x140
[ 7219.272602][   T73]      inet6_rtm_newroute+0x104/0x110
[ 7219.272602][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7219.272602][   T73]      netlink_rcv_skb+0x130/0x360
[ 7219.272602][   T73]      netlink_unicast+0x449/0x710
[ 7219.272602][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7219.272602][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7219.272602][   T73]      ___sys_sendmsg+0xee/0x170
[ 7219.272602][   T73]      __sys_sendmsg+0xcd/0x170
[ 7219.272602][   T73]      do_syscall_64+0xc6/0x1e0
[ 7219.272602][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7219.272602][   T73] 
[ 7219.275083][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 7219.275083][   T73]      dst_init+0x84/0x4a0
[ 7219.275083][   T73]      dst_alloc+0x97/0x150
[ 7219.275083][   T73]      ip6_dst_alloc+0x23/0x90
[ 7219.275083][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 7219.275083][   T73]      ip6_pol_route+0x56f/0x840
[ 7219.275083][   T73]      fib6_rule_lookup+0x456/0x630
[ 7219.275083][   T73]      ip6_route_input+0x59c/0xa50
[ 7219.275083][   T73]      ipv6_rcv+0x397/0x810
[ 7219.275083][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 7219.275083][   T73]      process_backlog+0x101/0x620
[ 7219.275083][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 7219.275083][   T73]      net_rx_action+0x495/0xbe0
[ 7219.275083][   T73]      __do_softirq+0x1b5/0x7f6
[ 7219.275083][   T73] 
[ 7219.276842][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7219.276842][   T73]      netdev_get_by_index+0x5e/0x80
[ 7219.276842][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7219.276842][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7219.276842][   T73]      ip6_route_add+0x1c/0x140
[ 7219.276842][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7219.276842][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7219.276842][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7219.276842][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7219.276842][   T73]      netlink_rcv_skb+0x130/0x360
[ 7219.276842][   T73]      netlink_unicast+0x449/0x710
[ 7219.276842][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7219.276842][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7219.276842][   T73]      ___sys_sendmsg+0xee/0x170
[ 7219.276842][   T73]      __sys_sendmsg+0xcd/0x170
[ 7219.276842][   T73]      do_syscall_64+0xc6/0x1e0
[ 7219.276842][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7219.276842][   T73] 
[ 7219.278953][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7219.278953][   T73]      netdev_get_by_index+0x5e/0x80
[ 7219.278953][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7219.278953][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7219.278953][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7219.278953][   T73]      ipv6_add_addr+0x411/0x2000
[ 7219.278953][   T73]      inet6_addr_add+0x30e/0xa40
[ 7219.278953][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7219.278953][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7219.278953][   T73]      netlink_rcv_skb+0x130/0x360
[ 7219.278953][   T73]      netlink_unicast+0x449/0x710
[ 7219.278953][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7219.278953][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7219.278953][   T73]      ___sys_sendmsg+0xee/0x170
[ 7219.278953][   T73]      __sys_sendmsg+0xcd/0x170
[ 7219.278953][   T73]      do_syscall_64+0xc6/0x1e0
[ 7219.278953][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7219.278953][   T73] 
[ 7219.281118][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7219.281118][   T73]      netdev_get_by_index+0x5e/0x80
[ 7219.281118][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7219.281118][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7219.281118][   T73]      ip6_route_add+0x1c/0x140
[ 7219.281118][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7219.281118][   T73]      addrconf_add_dev+0xe2/0x170
[ 7219.281118][   T73]      inet6_addr_add+0x12f/0xa40
[ 7219.281118][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7219.281118][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7219.281118][   T73]      netlink_rcv_skb+0x130/0x360
[ 7219.281118][   T73]      netlink_unicast+0x449/0x710
[ 7219.281118][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7219.281118][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7219.281118][   T73]      ___sys_sendmsg+0xee/0x170
[ 7219.281118][   T73]      __sys_sendmsg+0xcd/0x170
[ 7219.281118][   T73]      do_syscall_64+0xc6/0x1e0
[ 7219.281118][   T73] 
[ 7219.283134][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7219.283134][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7219.283134][   T73]      ipv6_find_idev+0x102/0x170
[ 7219.283134][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7219.283134][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7219.283134][   T73]      netlink_rcv_skb+0x130/0x360
[ 7219.283134][   T73]      netlink_unicast+0x449/0x710
[ 7219.283134][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7219.283134][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7219.283134][   T73]      ___sys_sendmsg+0xee/0x170
[ 7219.283134][   T73]      __sys_sendmsg+0xcd/0x170
[ 7219.283134][   T73]      do_syscall_64+0xc6/0x1e0
[ 7219.283134][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7219.283134][   T73] 
[ 7219.284798][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7219.284798][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7219.284798][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7219.284798][   T73]      ipv6_find_idev+0x102/0x170
[ 7219.284798][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7219.284798][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7219.284798][   T73]      netlink_rcv_skb+0x130/0x360
[ 7219.284798][   T73]      netlink_unicast+0x449/0x710
[ 7219.284798][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7219.284798][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7219.284798][   T73]      ___sys_sendmsg+0xee/0x170
[ 7219.284798][   T73]      __sys_sendmsg+0xcd/0x170
[ 7219.284798][   T73]      do_syscall_64+0xc6/0x1e0
[ 7219.284798][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7219.284798][   T73] 
[ 7219.286619][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 7219.287328][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7219.287328][   T73]      netdev_get_by_index+0x5e/0x80
[ 7219.287328][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7219.287328][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7219.287328][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 7219.287328][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 7219.287328][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 7219.287328][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 7219.287328][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 7219.287328][   T73]      addrconf_dad_begin+0x310/0x670
[ 7219.287328][   T73]      addrconf_dad_work+0x10b/0xab0
[ 7219.287328][   T73]      process_one_work+0x84d/0x18a0
[ 7219.287328][   T73]      worker_thread+0x587/0xd30
[ 7219.287328][   T73]      kthread+0x28a/0x350
[ 7219.287328][   T73]      ret_from_fork+0x31/0x70
[ 7219.287328][   T73]      ret_from_fork_asm+0x1a/0x30
[ 7219.287328][   T73] 
[ 7219.289262][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7219.289262][   T73]      netdev_get_by_index+0x5e/0x80
[ 7219.289262][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7219.289262][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7219.289262][   T73]      ip6_route_add+0x1c/0x140
[ 7219.289262][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7219.289262][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7219.289262][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7219.289262][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7219.289262][   T73]      netlink_rcv_skb+0x130/0x360
[ 7219.289262][   T73]      netlink_unicast+0x449/0x710
[ 7219.289262][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7219.289262][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7219.289262][   T73]      ___sys_sendmsg+0xee/0x170
[ 7219.289262][   T73]      __sys_sendmsg+0xcd/0x170
[ 7219.289262][   T73]      do_syscall_64+0xc6/0x1e0
[ 7219.289262][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7219.289262][   T73] 
[ 7219.291340][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7219.291340][   T73]      netdev_get_by_index+0x5e/0x80
[ 7219.291340][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7219.291340][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7219.291340][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7219.291340][   T73]      ipv6_add_addr+0x411/0x2000
[ 7219.291340][   T73]      inet6_addr_add+0x30e/0xa40
[ 7219.291340][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7219.291340][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7219.291340][   T73]      netlink_rcv_skb+0x130/0x360
[ 7219.291340][   T73]      netlink_unicast+0x449/0x710
[ 7219.291340][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7219.291340][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7219.291340][   T73]      ___sys_sendmsg+0xee/0x170
[ 7219.291340][   T73]      __sys_sendmsg+0xcd/0x170
[ 7219.291340][   T73]      do_syscall_64+0xc6/0x1e0
[ 7219.291340][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7219.291340][   T73] 
[ 7219.293391][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7219.293391][   T73]      netdev_get_by_index+0x5e/0x80
[ 7219.293391][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7219.293391][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7219.293391][   T73]      ip6_route_add+0x1c/0x140
[ 7219.293391][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7219.293391][   T73]      addrconf_add_dev+0xe2/0x170
[ 7219.293391][   T73]      inet6_addr_add+0x12f/0xa40
[ 7219.293391][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7219.293391][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7219.293391][   T73]      netlink_rcv_skb+0x130/0x360
[ 7219.293391][   T73]      netlink_unicast+0x449/0x710
[ 7219.293391][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7219.293391][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7219.293391][   T73]      ___sys_sendmsg+0xee/0x170
[ 7219.293391][   T73]      __sys_sendmsg+0xcd/0x170
[ 7219.293391][   T73]      do_syscall_64+0xc6/0x1e0
[ 7219.293391][   T73] 
[ 7219.295469][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7219.295469][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7219.295469][   T73]      ipv6_find_idev+0x102/0x170
[ 7219.295469][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7219.295469][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7219.295469][   T73]      netlink_rcv_skb+0x130/0x360
[ 7219.295469][   T73]      netlink_unicast+0x449/0x710
[ 7219.295469][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7219.295469][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7219.295469][   T73]      ___sys_sendmsg+0xee/0x170
[ 7219.295469][   T73]      __sys_sendmsg+0xcd/0x170
[ 7219.295469][   T73]      do_syscall_64+0xc6/0x1e0
[ 7219.295469][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7219.295469][   T73] 
[ 7219.297134][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7219.297134][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7219.297134][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7219.297134][   T73]      ipv6_find_idev+0x102/0x170
[ 7219.297134][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7219.297134][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7219.297134][   T73]      netlink_rcv_skb+0x130/0x360
[ 7219.297134][   T73]      netlink_unicast+0x449/0x710
[ 7219.297134][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7219.297134][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7219.297134][   T73]      ___sys_sendmsg+0xee/0x170
[ 7219.297134][   T73]      __sys_sendmsg+0xcd/0x170
[ 7219.297134][   T73]      do_syscall_64+0xc6/0x1e0
[ 7219.297134][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7219.297134][   T73] 
[ 7229.319744][   T73] unregister_netdevice: waiting for veth_A-R2 to become free. Usage count = 9
[ 7229.320150][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7229.320150][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 7229.320150][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 7229.320150][   T73]      fib6_nh_init+0xa22/0x1580
[ 7229.320150][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7229.320150][   T73]      ip6_route_add+0x1c/0x140
[ 7229.320150][   T73]      inet6_rtm_newroute+0x104/0x110
[ 7229.320150][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7229.320150][   T73]      netlink_rcv_skb+0x130/0x360
[ 7229.320150][   T73]      netlink_unicast+0x449/0x710
[ 7229.320150][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7229.320150][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7229.320150][   T73]      ___sys_sendmsg+0xee/0x170
[ 7229.320150][   T73]      __sys_sendmsg+0xcd/0x170
[ 7229.320150][   T73]      do_syscall_64+0xc6/0x1e0
[ 7229.320150][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7229.320150][   T73] 
[ 7229.322130][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 2/8 users at
[ 7229.322130][   T73]      dst_init+0x84/0x4a0
[ 7229.322130][   T73]      dst_alloc+0x97/0x150
[ 7229.322130][   T73]      ip6_dst_alloc+0x23/0x90
[ 7229.322130][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 7229.322130][   T73]      ip6_pol_route+0x56f/0x840
[ 7229.322130][   T73]      fib6_rule_lookup+0x456/0x630
[ 7229.322130][   T73]      ip6_route_input+0x59c/0xa50
[ 7229.322130][   T73]      ipv6_rcv+0x397/0x810
[ 7229.322130][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 7229.322130][   T73]      process_backlog+0x101/0x620
[ 7229.322130][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 7229.322130][   T73]      net_rx_action+0x495/0xbe0
[ 7229.322130][   T73]      __do_softirq+0x1b5/0x7f6
[ 7229.322130][   T73] 
[ 7229.323835][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7229.323835][   T73]      netdev_get_by_index+0x5e/0x80
[ 7229.323835][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7229.323835][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7229.323835][   T73]      ip6_route_add+0x1c/0x140
[ 7229.323835][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7229.323835][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7229.323835][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7229.323835][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7229.323835][   T73]      netlink_rcv_skb+0x130/0x360
[ 7229.323835][   T73]      netlink_unicast+0x449/0x710
[ 7229.323835][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7229.323835][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7229.323835][   T73]      ___sys_sendmsg+0xee/0x170
[ 7229.323835][   T73]      __sys_sendmsg+0xcd/0x170
[ 7229.323835][   T73]      do_syscall_64+0xc6/0x1e0
[ 7229.323835][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7229.323835][   T73] 
[ 7229.325927][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7229.325927][   T73]      netdev_get_by_index+0x5e/0x80
[ 7229.325927][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7229.325927][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7229.325927][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7229.325927][   T73]      ipv6_add_addr+0x411/0x2000
[ 7229.325927][   T73]      inet6_addr_add+0x30e/0xa40
[ 7229.325927][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7229.325927][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7229.325927][   T73]      netlink_rcv_skb+0x130/0x360
[ 7229.325927][   T73]      netlink_unicast+0x449/0x710
[ 7229.325927][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7229.325927][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7229.325927][   T73]      ___sys_sendmsg+0xee/0x170
[ 7229.325927][   T73]      __sys_sendmsg+0xcd/0x170
[ 7229.325927][   T73]      do_syscall_64+0xc6/0x1e0
[ 7229.325927][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7229.325927][   T73] 
[ 7229.328014][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7229.328014][   T73]      netdev_get_by_index+0x5e/0x80
[ 7229.328014][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7229.328014][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7229.328014][   T73]      ip6_route_add+0x1c/0x140
[ 7229.328014][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7229.328014][   T73]      addrconf_add_dev+0xe2/0x170
[ 7229.328014][   T73]      inet6_addr_add+0x12f/0xa40
[ 7229.328014][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7229.328014][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7229.328014][   T73]      netlink_rcv_skb+0x130/0x360
[ 7229.328014][   T73]      netlink_unicast+0x449/0x710
[ 7229.328014][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7229.328014][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7229.328014][   T73]      ___sys_sendmsg+0xee/0x170
[ 7229.328014][   T73]      __sys_sendmsg+0xcd/0x170
[ 7229.328014][   T73]      do_syscall_64+0xc6/0x1e0
[ 7229.328014][   T73] 
[ 7229.330030][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7229.330030][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7229.330030][   T73]      ipv6_find_idev+0x102/0x170
[ 7229.330030][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7229.330030][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7229.330030][   T73]      netlink_rcv_skb+0x130/0x360
[ 7229.330030][   T73]      netlink_unicast+0x449/0x710
[ 7229.330030][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7229.330030][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7229.330030][   T73]      ___sys_sendmsg+0xee/0x170
[ 7229.330030][   T73]      __sys_sendmsg+0xcd/0x170
[ 7229.330030][   T73]      do_syscall_64+0xc6/0x1e0
[ 7229.330030][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7229.330030][   T73] 
[ 7229.331626][   T73] ref_tracker: veth_A-R2@ffff888005ec45e0 has 1/8 users at
[ 7229.331626][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7229.331626][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7229.331626][   T73]      ipv6_find_idev+0x102/0x170
[ 7229.331626][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7229.331626][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7229.331626][   T73]      netlink_rcv_skb+0x130/0x360
[ 7229.331626][   T73]      netlink_unicast+0x449/0x710
[ 7229.331626][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7229.331626][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7229.331626][   T73]      ___sys_sendmsg+0xee/0x170
[ 7229.331626][   T73]      __sys_sendmsg+0xcd/0x170
[ 7229.331626][   T73]      do_syscall_64+0xc6/0x1e0
[ 7229.331626][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7229.331626][   T73] 
[ 7229.333354][   T73] unregister_netdevice: waiting for veth_R2-A to become free. Usage count = 7
[ 7229.333641][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7229.333641][   T73]      netdev_get_by_index+0x5e/0x80
[ 7229.333641][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7229.333641][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7229.333641][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 7229.333641][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 7229.333641][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 7229.333641][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 7229.333641][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 7229.333641][   T73]      addrconf_dad_begin+0x310/0x670
[ 7229.333641][   T73]      addrconf_dad_work+0x10b/0xab0
[ 7229.333641][   T73]      process_one_work+0x84d/0x18a0
[ 7229.333641][   T73]      worker_thread+0x587/0xd30
[ 7229.333641][   T73]      kthread+0x28a/0x350
[ 7229.333641][   T73]      ret_from_fork+0x31/0x70
[ 7229.333641][   T73]      ret_from_fork_asm+0x1a/0x30
[ 7229.333641][   T73] 
[ 7229.335589][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7229.335589][   T73]      netdev_get_by_index+0x5e/0x80
[ 7229.335589][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7229.335589][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7229.335589][   T73]      ip6_route_add+0x1c/0x140
[ 7229.335589][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7229.335589][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7229.335589][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7229.335589][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7229.335589][   T73]      netlink_rcv_skb+0x130/0x360
[ 7229.335589][   T73]      netlink_unicast+0x449/0x710
[ 7229.335589][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7229.335589][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7229.335589][   T73]      ___sys_sendmsg+0xee/0x170
[ 7229.335589][   T73]      __sys_sendmsg+0xcd/0x170
[ 7229.335589][   T73]      do_syscall_64+0xc6/0x1e0
[ 7229.335589][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7229.335589][   T73] 
[ 7229.337631][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7229.337631][   T73]      netdev_get_by_index+0x5e/0x80
[ 7229.337631][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7229.337631][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7229.337631][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7229.337631][   T73]      ipv6_add_addr+0x411/0x2000
[ 7229.337631][   T73]      inet6_addr_add+0x30e/0xa40
[ 7229.337631][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7229.337631][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7229.337631][   T73]      netlink_rcv_skb+0x130/0x360
[ 7229.337631][   T73]      netlink_unicast+0x449/0x710
[ 7229.337631][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7229.337631][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7229.337631][   T73]      ___sys_sendmsg+0xee/0x170
[ 7229.337631][   T73]      __sys_sendmsg+0xcd/0x170
[ 7229.337631][   T73]      do_syscall_64+0xc6/0x1e0
[ 7229.337631][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7229.337631][   T73] 
[ 7229.339692][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7229.339692][   T73]      netdev_get_by_index+0x5e/0x80
[ 7229.339692][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7229.339692][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7229.339692][   T73]      ip6_route_add+0x1c/0x140
[ 7229.339692][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7229.339692][   T73]      addrconf_add_dev+0xe2/0x170
[ 7229.339692][   T73]      inet6_addr_add+0x12f/0xa40
[ 7229.339692][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7229.339692][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7229.339692][   T73]      netlink_rcv_skb+0x130/0x360
[ 7229.339692][   T73]      netlink_unicast+0x449/0x710
[ 7229.339692][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7229.339692][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7229.339692][   T73]      ___sys_sendmsg+0xee/0x170
[ 7229.339692][   T73]      __sys_sendmsg+0xcd/0x170
[ 7229.339692][   T73]      do_syscall_64+0xc6/0x1e0
[ 7229.339692][   T73] 
[ 7229.341712][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7229.341712][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7229.341712][   T73]      ipv6_find_idev+0x102/0x170
[ 7229.341712][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7229.341712][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7229.341712][   T73]      netlink_rcv_skb+0x130/0x360
[ 7229.341712][   T73]      netlink_unicast+0x449/0x710
[ 7229.341712][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7229.341712][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7229.341712][   T73]      ___sys_sendmsg+0xee/0x170
[ 7229.341712][   T73]      __sys_sendmsg+0xcd/0x170
[ 7229.341712][   T73]      do_syscall_64+0xc6/0x1e0
[ 7229.341712][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7229.341712][   T73] 
[ 7229.343271][   T73] ref_tracker: veth_R2-A@ffff8880057515e0 has 1/6 users at
[ 7229.343271][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7229.343271][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7229.343271][   T73]      ipv6_find_idev+0x102/0x170
[ 7229.343271][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7229.343271][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7229.343271][   T73]      netlink_rcv_skb+0x130/0x360
[ 7229.343271][   T73]      netlink_unicast+0x449/0x710
[ 7229.343271][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7229.343271][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7229.343271][   T73]      ___sys_sendmsg+0xee/0x170
[ 7229.343271][   T73]      __sys_sendmsg+0xcd/0x170
[ 7229.343271][   T73]      do_syscall_64+0xc6/0x1e0
[ 7229.343271][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7229.343271][   T73] 
[ 7229.344991][   T73] unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 9
[ 7229.345283][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7229.345283][   T73]      ip6_route_check_nh+0x4b8/0x6a0
[ 7229.345283][   T73]      ip6_validate_gw+0x3f7/0x7b0
[ 7229.345283][   T73]      fib6_nh_init+0xa22/0x1580
[ 7229.345283][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7229.345283][   T73]      ip6_route_add+0x1c/0x140
[ 7229.345283][   T73]      inet6_rtm_newroute+0x104/0x110
[ 7229.345283][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7229.345283][   T73]      netlink_rcv_skb+0x130/0x360
[ 7229.345283][   T73]      netlink_unicast+0x449/0x710
[ 7229.345283][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7229.345283][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7229.345283][   T73]      ___sys_sendmsg+0xee/0x170
[ 7229.345283][   T73]      __sys_sendmsg+0xcd/0x170
[ 7229.345283][   T73]      do_syscall_64+0xc6/0x1e0
[ 7229.345283][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7229.345283][   T73] 
[ 7229.347326][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 2/8 users at
[ 7229.347326][   T73]      dst_init+0x84/0x4a0
[ 7229.347326][   T73]      dst_alloc+0x97/0x150
[ 7229.347326][   T73]      ip6_dst_alloc+0x23/0x90
[ 7229.347326][   T73]      ip6_rt_pcpu_alloc+0x1e6/0x520
[ 7229.347326][   T73]      ip6_pol_route+0x56f/0x840
[ 7229.347326][   T73]      fib6_rule_lookup+0x456/0x630
[ 7229.347326][   T73]      ip6_route_input+0x59c/0xa50
[ 7229.347326][   T73]      ipv6_rcv+0x397/0x810
[ 7229.347326][   T73]      __netif_receive_skb_one_core+0x118/0x1b0
[ 7229.347326][   T73]      process_backlog+0x101/0x620
[ 7229.347326][   T73]      __napi_poll.constprop.0+0xa2/0x460
[ 7229.347326][   T73]      net_rx_action+0x495/0xbe0
[ 7229.347326][   T73]      __do_softirq+0x1b5/0x7f6
[ 7229.347326][   T73] 
[ 7229.349230][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7229.349230][   T73]      netdev_get_by_index+0x5e/0x80
[ 7229.349230][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7229.349230][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7229.349230][   T73]      ip6_route_add+0x1c/0x140
[ 7229.349230][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7229.349230][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7229.349230][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7229.349230][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7229.349230][   T73]      netlink_rcv_skb+0x130/0x360
[ 7229.349230][   T73]      netlink_unicast+0x449/0x710
[ 7229.349230][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7229.349230][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7229.349230][   T73]      ___sys_sendmsg+0xee/0x170
[ 7229.349230][   T73]      __sys_sendmsg+0xcd/0x170
[ 7229.349230][   T73]      do_syscall_64+0xc6/0x1e0
[ 7229.349230][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7229.349230][   T73] 
[ 7229.351450][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7229.351450][   T73]      netdev_get_by_index+0x5e/0x80
[ 7229.351450][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7229.351450][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7229.351450][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7229.351450][   T73]      ipv6_add_addr+0x411/0x2000
[ 7229.351450][   T73]      inet6_addr_add+0x30e/0xa40
[ 7229.351450][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7229.351450][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7229.351450][   T73]      netlink_rcv_skb+0x130/0x360
[ 7229.351450][   T73]      netlink_unicast+0x449/0x710
[ 7229.351450][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7229.351450][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7229.351450][   T73]      ___sys_sendmsg+0xee/0x170
[ 7229.351450][   T73]      __sys_sendmsg+0xcd/0x170
[ 7229.351450][   T73]      do_syscall_64+0xc6/0x1e0
[ 7229.351450][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7229.351450][   T73] 
[ 7229.353671][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7229.353671][   T73]      netdev_get_by_index+0x5e/0x80
[ 7229.353671][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7229.353671][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7229.353671][   T73]      ip6_route_add+0x1c/0x140
[ 7229.353671][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7229.353671][   T73]      addrconf_add_dev+0xe2/0x170
[ 7229.353671][   T73]      inet6_addr_add+0x12f/0xa40
[ 7229.353671][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7229.353671][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7229.353671][   T73]      netlink_rcv_skb+0x130/0x360
[ 7229.353671][   T73]      netlink_unicast+0x449/0x710
[ 7229.353671][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7229.353671][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7229.353671][   T73]      ___sys_sendmsg+0xee/0x170
[ 7229.353671][   T73]      __sys_sendmsg+0xcd/0x170
[ 7229.353671][   T73]      do_syscall_64+0xc6/0x1e0
[ 7229.353671][   T73] 
[ 7229.355858][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7229.355858][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7229.355858][   T73]      ipv6_find_idev+0x102/0x170
[ 7229.355858][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7229.355858][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7229.355858][   T73]      netlink_rcv_skb+0x130/0x360
[ 7229.355858][   T73]      netlink_unicast+0x449/0x710
[ 7229.355858][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7229.355858][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7229.355858][   T73]      ___sys_sendmsg+0xee/0x170
[ 7229.355858][   T73]      __sys_sendmsg+0xcd/0x170
[ 7229.355858][   T73]      do_syscall_64+0xc6/0x1e0
[ 7229.355858][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7229.355858][   T73] 
[ 7229.357609][   T73] ref_tracker: veth_A-R1@ffff88803e0fc5e0 has 1/8 users at
[ 7229.357609][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7229.357609][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7229.357609][   T73]      ipv6_find_idev+0x102/0x170
[ 7229.357609][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7229.357609][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7229.357609][   T73]      netlink_rcv_skb+0x130/0x360
[ 7229.357609][   T73]      netlink_unicast+0x449/0x710
[ 7229.357609][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7229.357609][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7229.357609][   T73]      ___sys_sendmsg+0xee/0x170
[ 7229.357609][   T73]      __sys_sendmsg+0xcd/0x170
[ 7229.357609][   T73]      do_syscall_64+0xc6/0x1e0
[ 7229.357609][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7229.357609][   T73] 
[ 7229.359556][   T73] unregister_netdevice: waiting for veth_R1-A to become free. Usage count = 7
[ 7229.360287][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7229.360287][   T73]      netdev_get_by_index+0x5e/0x80
[ 7229.360287][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7229.360287][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7229.360287][   T73]      addrconf_f6i_alloc+0x265/0x560
[ 7229.360287][   T73]      __ipv6_dev_ac_inc+0x25f/0xb10
[ 7229.360287][   T73]      addrconf_join_anycast+0x1c0/0x220
[ 7229.360287][   T73]      __ipv6_ifa_notify+0x6b3/0xaf0
[ 7229.360287][   T73]      addrconf_dad_completed+0x12b/0xe20
[ 7229.360287][   T73]      addrconf_dad_begin+0x310/0x670
[ 7229.360287][   T73]      addrconf_dad_work+0x10b/0xab0
[ 7229.360287][   T73]      process_one_work+0x84d/0x18a0
[ 7229.360287][   T73]      worker_thread+0x587/0xd30
[ 7229.360287][   T73]      kthread+0x28a/0x350
[ 7229.360287][   T73]      ret_from_fork+0x31/0x70
[ 7229.360287][   T73]      ret_from_fork_asm+0x1a/0x30
[ 7229.360287][   T73] 
[ 7229.362239][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7229.362239][   T73]      netdev_get_by_index+0x5e/0x80
[ 7229.362239][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7229.362239][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7229.362239][   T73]      ip6_route_add+0x1c/0x140
[ 7229.362239][   T73]      addrconf_prefix_route+0x2a6/0x430
[ 7229.362239][   T73]      inet6_addr_add+0x4f8/0xa40
[ 7229.362239][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7229.362239][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7229.362239][   T73]      netlink_rcv_skb+0x130/0x360
[ 7229.362239][   T73]      netlink_unicast+0x449/0x710
[ 7229.362239][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7229.362239][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7229.362239][   T73]      ___sys_sendmsg+0xee/0x170
[ 7229.362239][   T73]      __sys_sendmsg+0xcd/0x170
[ 7229.362239][   T73]      do_syscall_64+0xc6/0x1e0
[ 7229.362239][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7229.362239][   T73] 
[ 7229.364334][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7229.364334][   T73]      netdev_get_by_index+0x5e/0x80
[ 7229.364334][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7229.364334][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7229.364334][   T73]      addrconf_f6i_alloc+0x315/0x560
[ 7229.364334][   T73]      ipv6_add_addr+0x411/0x2000
[ 7229.364334][   T73]      inet6_addr_add+0x30e/0xa40
[ 7229.364334][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7229.364334][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7229.364334][   T73]      netlink_rcv_skb+0x130/0x360
[ 7229.364334][   T73]      netlink_unicast+0x449/0x710
[ 7229.364334][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7229.364334][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7229.364334][   T73]      ___sys_sendmsg+0xee/0x170
[ 7229.364334][   T73]      __sys_sendmsg+0xcd/0x170
[ 7229.364334][   T73]      do_syscall_64+0xc6/0x1e0
[ 7229.364334][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7229.364334][   T73] 
[ 7229.366554][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7229.366554][   T73]      netdev_get_by_index+0x5e/0x80
[ 7229.366554][   T73]      fib6_nh_init+0x3d8/0x1580
[ 7229.366554][   T73]      ip6_route_info_create+0xf18/0x17d0
[ 7229.366554][   T73]      ip6_route_add+0x1c/0x140
[ 7229.366554][   T73]      addrconf_add_mroute+0x1ac/0x2c0
[ 7229.366554][   T73]      addrconf_add_dev+0xe2/0x170
[ 7229.366554][   T73]      inet6_addr_add+0x12f/0xa40
[ 7229.366554][   T73]      inet6_rtm_newaddr+0x560/0x6b0
[ 7229.366554][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7229.366554][   T73]      netlink_rcv_skb+0x130/0x360
[ 7229.366554][   T73]      netlink_unicast+0x449/0x710
[ 7229.366554][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7229.366554][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7229.366554][   T73]      ___sys_sendmsg+0xee/0x170
[ 7229.366554][   T73]      __sys_sendmsg+0xcd/0x170
[ 7229.366554][   T73]      do_syscall_64+0xc6/0x1e0
[ 7229.366554][   T73] 
[ 7229.368809][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7229.368809][   T73]      ipv6_add_dev+0x3ba/0x11c0
[ 7229.368809][   T73]      ipv6_find_idev+0x102/0x170
[ 7229.368809][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7229.368809][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7229.368809][   T73]      netlink_rcv_skb+0x130/0x360
[ 7229.368809][   T73]      netlink_unicast+0x449/0x710
[ 7229.368809][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7229.368809][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7229.368809][   T73]      ___sys_sendmsg+0xee/0x170
[ 7229.368809][   T73]      __sys_sendmsg+0xcd/0x170
[ 7229.368809][   T73]      do_syscall_64+0xc6/0x1e0
[ 7229.368809][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7229.368809][   T73] 
[ 7229.370597][   T73] ref_tracker: veth_R1-A@ffff888005ed45e0 has 1/6 users at
[ 7229.370597][   T73]      neigh_parms_alloc+0x1e5/0x510
[ 7229.370597][   T73]      ipv6_add_dev+0x2fe/0x11c0
[ 7229.370597][   T73]      ipv6_find_idev+0x102/0x170
[ 7229.370597][   T73]      inet6_rtm_newaddr+0x37c/0x6b0
[ 7229.370597][   T73]      rtnetlink_rcv_msg+0x2fb/0xbf0
[ 7229.370597][   T73]      netlink_rcv_skb+0x130/0x360
[ 7229.370597][   T73]      netlink_unicast+0x449/0x710
[ 7229.370597][   T73]      netlink_sendmsg+0x723/0xbe0
[ 7229.370597][   T73]      ____sys_sendmsg+0x7b2/0xa10
[ 7229.370597][   T73]      ___sys_sendmsg+0xee/0x170
[ 7229.370597][   T73]      __sys_sendmsg+0xcd/0x170
[ 7229.370597][   T73]      do_syscall_64+0xc6/0x1e0
[ 7229.370597][   T73]      entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 7229.370597][   T73]